From 35a6cf84ec5ee903d2c06726f89a7816fd39d267 Mon Sep 17 00:00:00 2001 From: kolya Date: Wed, 3 Sep 2008 14:05:52 +0000 Subject: make pdf, ps, tarball --- xv6.ps | 25153 ++++++++++++++++++++++++++++++++------------------------------- 1 file changed, 12698 insertions(+), 12455 deletions(-) (limited to 'xv6.ps') diff --git a/xv6.ps b/xv6.ps index b73ae3e..4a90f7b 100644 --- a/xv6.ps +++ b/xv6.ps @@ -1,16 +1,16 @@ %!PS-Adobe-3.0 -%%Creator: xpdf/pdftops 3.01 %%LanguageLevel: 2 %%DocumentSuppliedResources: (atend) %%DocumentMedia: plain 612 792 0 () () %%BoundingBox: 0 0 612 792 -%%Pages: 79 +%%Pages: 80 %%EndComments %%BeginDefaults %%PageMedia: plain %%EndDefaults %%BeginProlog -%%BeginResource: procset xpdf 3.01 0 +%%BeginResource: procset xpdf 3.00 0 +%%Copyright: Copyright 1996-2004 Glyph & Cog, LLC /xpdf 75 dict def xpdf begin % PDF special state /pdfDictSize 15 def @@ -135,6 +135,7 @@ % clipping operators /W { clip newpath } def /W* { eoclip newpath } def +/Ws { strokepath clip newpath } def % text state operators /Tc { /pdfCharSpacing exch def } def /Tf { dup /pdfFontSize exch def @@ -257,6 +258,7 @@ not { pop exit } if (%-EOD-) eq { exit } if } loop } def +/pr { 2 index 2 index 3 2 roll putinterval 4 add } def /pdfImClip { gsave 0 2 4 index length 1 sub { @@ -338,7 +340,8 @@ dup 4 3 roll exch 4 index axialSH exch 3 2 roll axialSH } { - pop 2 copy add 0.5 mul axialCol sc + pop 2 copy add 0.5 mul + axialCol sc exch dup dx mul x0 add exch dy mul y0 add 3 2 roll dup dx mul x0 add exch dy mul y0 add dx abs dy abs ge { @@ -382,11 +385,24 @@ dup 4 3 roll exch 4 index radialSH exch 3 2 roll radialSH } { - pop 2 copy add 0.5 mul dt mul t0 add axialCol sc - exch dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add - 0 360 arc h - dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add - 0 360 arc h f* + pop 2 copy add 0.5 mul dt mul t0 add + radialCol sc + encl { + exch dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add + 0 360 arc h + dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add + 360 0 arcn h f + } { + 2 copy + dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add + a1 a2 arcn + dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add + a2 a1 arcn h + dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add + a1 a2 arc + dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add + a2 a1 arc h f + } ifelse } ifelse } def end @@ -394,8 +410,8 @@ end %%EndProlog %%BeginSetup xpdf begin -%%BeginResource: font LucidaSans-Typewriter83 -%!FontType1-1.0: LucidaSans-Typewriter83 +%%BeginResource: font YLWBJI+LucidaSans-Typewriter83 +%!FontType1-1.0: YLWBJI+LucidaSans-Typewriter83 12 dict begin /FontInfo 10 dict dup begin /Notice (Copyright (c) 1991 Bigelow & Holmes Inc. and Y&Y, Inc. (508) 371-3286. All Rights Reserved.) readonly def @@ -406,10 +422,10 @@ xpdf begin /UnderlinePosition 0 def /UnderlineThickness 0 def end readonly def -/FontName /LucidaSans-Typewriter83 def +/FontName /YLWBJI+LucidaSans-Typewriter83 def /PaintType 0 def /FontType 1 def -/FontMatrix [0.000833333 0 0 0.000833333 0 0] readonly def +/FontMatrix [0.00083333 0 0 0.00083333 0 0] readonly def /FontBBox [0 -205 602 783] readonly def /StrokeWidth 0 def /Encoding 256 array @@ -521,335 +537,335 @@ BD517EDB02BEB90195FD7DDAF3E839BCE2DB156D9337DBB2305A465B3E0FFB97 7BD5FCB1AAE15E89D1FB339D587D218B89C18A32F47C7451A80CB1FC07CF5EF5 C2A9054AD59AE4D5522D8745045620C9C40EAB675A6FE53511D83C04968F37DE 389C3A7A551DC79580FF1B382205C5951A9F8E7B6CEF33E027D608C14A394033 -1E603A09B3061B66BB71AC1D2A232B5F2BC9481D7D44F334ACCBBF6538A439A3 -FE8DA1ABE05931A20F8FC365A0F90C9A22578FEBDD03E4201D2887923DD20ED9 -2F8F50AA500DE6414F5521ACCBBA45FBD55A4882C7485B52146BD36775948914 -F8D5FB4C38AFAA25CC8946C7A7DBA010B186D6B5B07DA514976B3CC03535B838 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/YLWBJI+LucidaSans-Typewriter83 1 1 [ /.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef /.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef /.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef @@ -916,8 +932,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -932,16 +947,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 README Page 1) 144.161 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 README Page 1) 144.161 Tj 0 -28.4801 Td (xv6 is a re-implementation of Dennis Ritchie's and Ken Thompson\ 's Unix) 305.796 Tj 0 -37.9735 Td (Version 6 \(v6\). xv6 loosely follows the structure and style \ -of v6,) 292.69 Tj +of v6,) 292.6905 Tj 0 -47.4668 Td (but is implemented for a modern x86-based multiprocessor using \ ANSI C.) 305.796 Tj @@ -953,76 +968,76 @@ ANSI C.) 305.796 Tj 0 -94.9336 Td (to Peer Communications; ISBN: 1-57398-013-7; 1st edition \(June\ 14,) 288.322 Tj -0 -104.427 Td +0 -104.4269 Td (2000\)\). See also http://pdos.csail.mit.edu/6.828/2007/v6.html\ , which) 297.059 Tj -0 -113.92 Td -(provides pointers to on-line resources for v6.) 200.952 Tj +0 -113.9203 Td +(provides pointers to on-line resources for v6.) 200.9517 Tj 0 -132.907 Td -(xv6 borrows code from the following sources:) 192.215 Tj -17.4609 -142.4 Td +(xv6 borrows code from the following sources:) 192.2146 Tj +17.4613 -142.4004 Td (JOS \(asm.h, elf.h, mmu.h, bootasm.S, ide.c, console.c, and oth\ ers\)) 288.322 Tj -17.4609 -151.893 Td -(Plan 9 \(bootother.S, mp.h, mp.c, lapic.c\)) 179.109 Tj -17.4609 -161.387 Td +17.4613 -151.8937 Td +(Plan 9 \(bootother.S, mp.h, mp.c, lapic.c\)) 179.1091 Tj +17.4613 -161.3871 Td (FreeBSD \(ioapic.c\)) 78.6333 Tj -17.4609 -170.88 Td +17.4613 -170.8804 Td (NetBSD \(console.c\)) 78.6333 Tj -0 -189.867 Td -(The following people made contributions:) 174.741 Tj -17.4609 -199.36 Td +0 -189.8667 Td +(The following people made contributions:) 174.7406 Tj +17.4613 -199.3601 Td (Russ Cox \(context switching, locking\)) 161.635 Tj -17.4609 -208.853 Td +17.4613 -208.8535 Td (Cliff Frey \(MP\)) 65.5277 Tj -17.4609 -218.347 Td +17.4613 -218.3468 Td (Xiao Yu \(MP\)) 52.4222 Tj -0 -237.334 Td -(The code in the files that constitute xv6 is) 192.215 Tj -0 -246.827 Td +0 -237.3335 Td +(The code in the files that constitute xv6 is) 192.2146 Tj +0 -246.8269 Td (Copyright 2006-2007 Frans Kaashoek, Robert Morris, and Russ Cox\ -.) 279.585 Tj -0 -265.813 Td +.) 279.5849 Tj +0 -265.8136 Td (ERROR REPORTS) 56.7907 Tj -0 -284.799 Td +0 -284.8003 Td (If you spot errors or have suggestions for improvement, please \ -send) 292.69 Tj -0 -294.293 Td +send) 292.6905 Tj +0 -294.2936 Td (email to Frans Kaashoek and Robert Morris \(kaashoek,rtm@csail.\ mit.edu\). ) 314.533 Tj -0 -313.28 Td -(BUILDING AND RUNNING XV6) 104.844 Tj -0 -332.266 Td +0 -313.2803 Td +(BUILDING AND RUNNING XV6) 104.8443 Tj +0 -332.267 Td (To build xv6 on an x86 ELF machine \(like Linux or FreeBSD\), r\ -un "make".) 310.165 Tj -0 -341.76 Td +un "make".) 310.1645 Tj +0 -341.7604 Td (On non-x86 or non-ELF machines \(like OS X, even on x86\), you \ -will) 283.953 Tj -0 -351.253 Td +will) 283.9534 Tj +0 -351.2538 Td (need to install a cross-compiler gcc suite capable of producing\ - x86 ELF) 310.165 Tj -0 -360.746 Td -(binaries. See http://pdos.csail.mit.edu/6.828/2007/tools.html.) 275.216 Tj -0 -370.24 Td -(Then run "make TOOLPREFIX=i386-jos-elf-".) 179.109 Tj -0 -389.226 Td -(To run xv6, you can use Bochs or QEMU, both PC simulators.) 253.374 Tj -0 -398.72 Td -(Bochs makes debugging easier, but QEMU is much faster. ) 240.268 Tj -0 -408.213 Td + x86 ELF) 310.1645 Tj +0 -360.7471 Td +(binaries. See http://pdos.csail.mit.edu/6.828/2007/tools.html.) 275.2164 Tj +0 -370.2405 Td +(Then run "make TOOLPREFIX=i386-jos-elf-".) 179.1091 Tj +0 -389.2272 Td +(To run xv6, you can use Bochs or QEMU, both PC simulators.) 253.3738 Tj +0 -398.7205 Td +(Bochs makes debugging easier, but QEMU is much faster. ) 240.2683 Tj +0 -408.2139 Td (To run in Bochs, run "make bochs" and then type "c" at the boch\ s prompt.) 314.533 Tj -0 -417.706 Td +0 -417.7073 Td (To run in QEMU, run "make qemu". Both log the xv6 screen outpu\ t to ) 297.059 Tj -0 -427.2 Td +0 -427.2006 Td (standard output.) 69.8962 Tj -0 -446.187 Td -(To create a typeset version of the code, run "make xv6.pdf".) 262.111 Tj -0 -455.68 Td -(This requires the "mpage" text formatting utility.) 218.426 Tj -0 -465.173 Td -(See http://www.mesa.nl/pub/mpage/.) 148.529 Tj +0 -446.1873 Td +(To create a typeset version of the code, run "make xv6.pdf".) 262.1109 Tj +0 -455.6807 Td +(This requires the "mpage" text formatting utility.) 218.4257 Tj +0 -465.174 Td +(See http://www.mesa.nl/pub/mpage/.) 148.5295 Tj Q Q q @@ -1036,171 +1051,171 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 table of contents Page 1) 192.215 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 table of contents Page 1) 192.2146 Tj 0 -28.4801 Td (The numbers to the left of the file names in the table are shee\ -t numbers.) 318.902 Tj +t numbers.) 318.9016 Tj 0 -37.9735 Td (The source code has been printed in a double column format with\ - fifty) 301.427 Tj + fifty) 301.4275 Tj 0 -47.4668 Td (lines per column, giving one hundred lines per sheet \(or page\)\ -.) 275.216 Tj +.) 275.2164 Tj 0 -56.9602 Td (Thus there is a convenient relationship between line numbers an\ -d sheet numbers.) 345.113 Tj +d sheet numbers.) 345.1126 Tj 0 -85.4403 Td (# basic headers) 65.5277 Tj --4514.16 TJm +-4514.2 TJm (# system calls) 61.1592 Tj -5015.87 TJm (# pipes) 30.5796 Tj 0 -94.9336 Td (01 types.h) 43.6851 Tj --7022.49 TJm +-7022.54 TJm (23 traps.h) 43.6851 Tj -7022.54 TJm (51 pipe.c) 39.3166 Tj 0 -104.427 Td (01 param.h) 43.6851 Tj --7022.49 TJm +-7022.54 TJm (24 vectors.pl) 56.7907 Tj -0 -113.92 Td +0 -113.9204 Td (02 defs.h) 39.3166 Tj --7524.16 TJm +-7524.2 TJm (24 trapasm.S) 52.4222 Tj -6019.2 TJm (# string operations) 83.0018 Tj -0 -123.414 Td +0 -123.4137 Td (03 x86.h) 34.9481 Tj --8025.82 TJm +-8025.87 TJm (25 trap.c) 39.3166 Tj -7524.2 TJm (53 string.c) 48.0537 Tj -0 -132.907 Td +0 -132.9071 Td (05 asm.h) 34.9481 Tj --8025.82 TJm +-8025.87 TJm (26 syscall.h) 52.4222 Tj -0 -142.4 Td +0 -142.4004 Td (06 mmu.h) 34.9481 Tj --8025.82 TJm +-8025.87 TJm (26 syscall.c) 52.4222 Tj -6019.2 TJm (# low-level hardware) 87.3703 Tj -0 -151.894 Td +0 -151.8938 Td (08 elf.h) 34.9481 Tj --8025.82 TJm +-8025.87 TJm (28 sysproc.c) 52.4222 Tj -6019.2 TJm (54 mp.h) 30.5796 Tj -209.535 -161.387 Td +209.536 -161.3872 Td (55 mp.c) 30.5796 Tj -0 -170.881 Td +0 -170.8805 Td (# startup) 39.3166 Tj --7524.16 TJm +-7524.2 TJm (# file system) 56.7907 Tj -5517.54 TJm (56 lapic.c) 43.6851 Tj -0 -180.374 Td +0 -180.3739 Td (09 bootasm.S) 52.4222 Tj --6019.16 TJm +-6019.2 TJm (29 buf.h) 34.9481 Tj -8025.87 TJm (58 ioapic.c) 48.0537 Tj -0 -189.867 Td +0 -189.8672 Td (10 bootother.S) 61.1592 Tj --5015.82 TJm +-5015.87 TJm (29 dev.h) 34.9481 Tj -8025.87 TJm (59 picirq.c) 48.0537 Tj -0 -199.361 Td +0 -199.3606 Td (11 bootmain.c) 56.7907 Tj --5517.49 TJm +-5517.54 TJm (30 fcntl.h) 43.6851 Tj -7022.54 TJm (60 kbd.h) 34.9481 Tj 0 -208.854 Td (12 main.c) 39.3166 Tj --7524.16 TJm +-7524.2 TJm (30 stat.h) 39.3166 Tj -7524.2 TJm -(61 kbd.c) 34.9481 Tj -104.767 -218.347 Td +(62 kbd.c) 34.9481 Tj +104.768 -218.3473 Td (31 file.h) 39.3166 Tj -7524.2 TJm (62 console.c) 52.4222 Tj -0 -227.841 Td +0 -227.8407 Td (# locks) 30.5796 Tj --8527.49 TJm +-8527.54 TJm (31 fs.h) 30.5796 Tj -8527.54 TJm -(65 timer.c) 43.6851 Tj +(66 timer.c) 43.6851 Tj 0 -237.334 Td (13 spinlock.h) 56.7907 Tj --5517.49 TJm +-5517.54 TJm (32 fsvar.h) 43.6851 Tj -0 -246.827 Td -(14 spinlock.c) 56.7907 Tj --5517.49 TJm +0 -246.8274 Td +(13 spinlock.c) 56.7907 Tj +-5517.54 TJm (33 ide.c) 34.9481 Tj -8025.87 TJm (# user-level) 52.4222 Tj -104.767 -256.321 Td +104.768 -256.3208 Td (35 bio.c) 34.9481 Tj -8025.87 TJm -(66 initcode.S) 56.7907 Tj -0 -265.814 Td +(67 initcode.S) 56.7907 Tj +0 -265.8141 Td (# processes) 48.0537 Tj --6520.82 TJm +-6520.87 TJm (36 fs.c) 30.5796 Tj -8527.54 TJm -(66 init.c) 39.3166 Tj -0 -275.307 Td +(67 init.c) 39.3166 Tj +0 -275.3075 Td (15 proc.h) 39.3166 Tj --7524.16 TJm +-7524.2 TJm (44 file.c) 39.3166 Tj -7524.2 TJm -(67 usys.S) 39.3166 Tj -0 -284.8 Td +(68 usys.S) 39.3166 Tj +0 -284.8008 Td (16 proc.c) 39.3166 Tj --7524.16 TJm +-7524.2 TJm (45 sysfile.c) 52.4222 Tj -6019.2 TJm -(67 sh.c) 30.5796 Tj -0 -294.294 Td +(68 sh.c) 30.5796 Tj +0 -294.2942 Td (21 swtch.S) 43.6851 Tj --7022.49 TJm +-7022.54 TJm (50 exec.c) 39.3166 Tj -0 -303.787 Td +0 -303.7876 Td (22 kalloc.c) 48.0537 Tj -0 -341.761 Td +0 -341.7606 Td (The source listing is preceded by a cross-reference that lists \ -every defined ) 336.376 Tj -0 -351.254 Td +every defined ) 336.3756 Tj +0 -351.2539 Td (constant, struct, global variable, and function in xv6. Each e\ -ntry gives,) 323.27 Tj -0 -360.747 Td +ntry gives,) 323.2701 Tj +0 -360.7473 Td (on the same line as the name, the line number \(or, in a few ca\ -ses, numbers\)) 327.639 Tj -0 -370.241 Td +ses, numbers\)) 327.6386 Tj +0 -370.2406 Td (where the name is defined. Successive lines in an entry list t\ he line) 305.796 Tj 0 -379.734 Td -(numbers where the name is used. For example, this entry:) 249.005 Tj -17.4609 -398.721 Td +(numbers where the name is used. For example, this entry:) 249.0053 Tj +17.4613 -398.7207 Td (swtch 2256) 43.6851 Tj -34.9222 -408.214 Td +34.9226 -408.2141 Td (0311 1928 1962 2255) 83.0018 Tj -34.9222 -417.707 Td +34.9226 -417.7074 Td (2256) 17.4741 Tj --7.10543e-15 -436.694 Td +-0 -436.6941 Td (indicates that swtch is defined on line 2256 and is mentioned o\ -n five lines) 327.639 Tj --7.10543e-15 -446.187 Td -(on sheets 03, 19, and 22.) 109.213 Tj +n five lines) 327.6386 Tj +-0 -446.1875 Td +(on sheets 03, 19, and 22.) 109.2129 Tj Q Q Q @@ -1228,8 +1243,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -1244,210 +1258,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 1) 187.846 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 1) 187.8461 Tj 0 -28.4801 Td -(acquire 1425) 52.4222 Tj +(acquire 1375) 52.4222 Tj -14045.3 TJm -(2911 3387 3414 3419) 83.0018 Tj -17.4609 -37.9735 Td -(0314 1425 1428 1633) 83.0018 Tj --8527.18 TJm -(3460 3479 3618) 61.1592 Tj -17.4609 -47.4668 Td -(1815 1869 1918 1933) 83.0018 Tj +(0210 1224 3538) 61.1592 Tj +17.4613 -37.9735 Td +(0311 1375 1379 1632) 83.0018 Tj -6520.6 TJm -(bfree 3730) 43.6851 Tj -17.4609 -56.9602 Td +(bmap 4010) 39.3166 Tj +17.4613 -47.4664 Td +(1820 1871 1918 1933) 83.0018 Tj +-8527.14 TJm +(4010 4047 4119 4169) 83.0018 Tj +17.4613 -56.9594 Td (1967 1980 2023 2058) 83.0018 Tj --8527.18 TJm -(3730 4060 4070) 61.1592 Tj -17.4609 -66.4535 Td -(2265 2312 2553 2871) 83.0018 Tj +-8527.14 TJm +(4222) 17.4741 Tj +17.4613 -66.4524 Td +(2265 2312 2549 2870) 83.0018 Tj -6520.6 TJm -(bget 3565) 39.3166 Tj -17.4609 -75.9469 Td +(bootmain 1116) 56.7907 Tj +17.4613 -75.9453 Td (3406 3465 3569 3629) 83.0018 Tj --8527.18 TJm -(3565 3596 3606) 61.1592 Tj -17.4609 -85.4403 Td +-8527.14 TJm +(0975 1116) 39.3166 Tj +17.4613 -85.4383 Td (3807 3840 3860 3889) 83.0018 Tj -6520.6 TJm -(binit 3538) 43.6851 Tj -17.4609 -94.9336 Td +(bootothers 1267) 65.5277 Tj +17.4613 -94.9313 Td (3904 3914 4423 4440) 83.0018 Tj --8527.18 TJm -(0210 1235 3538) 61.1592 Tj -17.4609 -104.427 Td -(4456 5217 5255 5278) 83.0018 Tj +-8527.14 TJm +(1207 1236 1267) 61.1592 Tj +17.4613 -104.4243 Td +(4456 5217 5255 5277) 83.0018 Tj -6520.6 TJm -(bmap 4010) 39.3166 Tj -17.4609 -113.92 Td -(6335 6390 6416 6458) 83.0018 Tj --8527.18 TJm -(4010 4047 4119 4169) 83.0018 Tj -0 -123.413 Td -(allocproc 1628) 61.1592 Tj +(BPB 3193) 34.9481 Tj +17.4613 -113.9172 Td +(6385 6440 6466 6508) 83.0018 Tj +-8527.14 TJm +(3193 3196 3712 3714) 83.0018 Tj +0 -123.4106 Td +(allocproc 1627) 61.1592 Tj -13042 TJm -(4222) 17.4741 Tj -17.4609 -132.907 Td -(1628 1710) 39.3166 Tj +(3740) 17.4741 Tj +17.4613 -132.9039 Td +(1627 1715) 39.3166 Tj -11537.3 TJm -(bootmain 1117) 56.7907 Tj -0 -142.4 Td +(bread 3602) 43.6851 Tj +0 -142.3973 Td (alltraps 2456) 56.7907 Tj -13543.7 TJm -(0975 1117) 39.3166 Tj -17.4609 -151.893 Td +(0211 3602 3683 3694) 83.0018 Tj +17.4613 -151.8907 Td (2410 2418 2432 2437) 83.0018 Tj --6520.6 TJm -(bootothers 1276) 65.5277 Tj -17.4609 -161.387 Td +-8527.14 TJm +(3713 3739 3867 3961) 83.0018 Tj +17.4613 -161.3836 Td (2455 2456) 39.3166 Tj -13543.8 TJm -(1207 1246 1276) 61.1592 Tj -0 -170.88 Td -(ALT 6010) 34.9481 Tj --14045.4 TJm -(BPB 3193) 34.9481 Tj -17.4609 -180.373 Td -(6010 6038 6040) 61.1592 Tj --11035.5 TJm -(3193 3196 3712 3714) 83.0018 Tj -0 -189.867 Td +(3982 4032 4066 4119) 83.0018 Tj +0 -170.877 Td +(ALT 6060) 34.9481 Tj +-16052 TJm +(4169 4222) 39.3166 Tj +17.4613 -180.3703 Td +(6060 6088 6090) 61.1592 Tj +-9028.94 TJm +(brelse 3624) 48.0537 Tj +0 -189.8633 Td (argfd 4564) 43.6851 Tj -15048.7 TJm -(3740) 17.4741 Tj -17.4609 -199.36 Td +(0212 3624 3627 3685) 83.0018 Tj +17.4613 -199.3567 Td (4564 4607 4619 4630) 83.0018 Tj --6520.6 TJm -(bread 3602) 43.6851 Tj -17.4609 -208.854 Td +-8527.14 TJm +(3697 3719 3723 3746) 83.0018 Tj +17.4613 -208.8497 Td (4644 4656) 39.3166 Tj -13543.8 TJm -(0211 3602 3683 3694) 83.0018 Tj -0 -218.347 Td +(3875 3967 3970 3991) 83.0018 Tj +0 -218.343 Td (argint 2694) 48.0537 Tj -14547 TJm -(3713 3739 3867 3961) 83.0018 Tj -17.4609 -227.84 Td -(0330 2694 2708 2724) 83.0018 Tj --8527.18 TJm -(3982 4032 4066 4119) 83.0018 Tj -17.4609 -237.334 Td -(2835 2856 2869 4569) 83.0018 Tj --8527.18 TJm -(4169 4222) 39.3166 Tj -17.4609 -246.827 Td -(4607 4619 4858 4909) 83.0018 Tj --6520.6 TJm -(brelse 3624) 48.0537 Tj -17.4609 -256.32 Td -(4910 4957) 39.3166 Tj --13543.8 TJm -(0212 3624 3627 3685) 83.0018 Tj -0 -265.813 Td -(argptr 2704) 48.0537 Tj --14547 TJm -(3697 3719 3723 3746) 83.0018 Tj -17.4609 -275.307 Td -(0331 2704 4607 4619) 83.0018 Tj --8527.18 TJm -(3875 3967 3970 3991) 83.0018 Tj -17.4609 -284.8 Td -(4656 4982) 39.3166 Tj --13543.8 TJm (4037 4043 4072 4122) 83.0018 Tj -0 -294.293 Td -(argstr 2721) 48.0537 Tj --14547 TJm +17.4613 -227.8364 Td +(0329 2694 2708 2724) 83.0018 Tj +-8527.14 TJm (4173 4233 4237) 61.1592 Tj -17.4609 -303.787 Td -(0332 2721 4668 4758) 83.0018 Tj +17.4613 -237.3293 Td +(2837 2856 2868 4569) 83.0018 Tj -6520.6 TJm (BSIZE 3157) 43.6851 Tj -17.4609 -313.28 Td -(4858 4908 4923 4935) 83.0018 Tj --8527.18 TJm +17.4613 -246.8223 Td +(4607 4619 4858 4909) 83.0018 Tj +-8527.14 TJm (3157 3169 3187 3193) 83.0018 Tj -17.4609 -322.773 Td -(4957) 17.4741 Tj --16052.2 TJm +17.4613 -256.3153 Td +(4910 4957) 39.3166 Tj +-13543.8 TJm (3695 4119 4120 4121) 83.0018 Tj -0 -332.267 Td -(BACK 6761) 39.3166 Tj --15550.3 TJm +0 -265.8086 Td +(argptr 2704) 48.0537 Tj +-14547 TJm (4165 4166 4169 4170) 83.0018 Tj -17.4609 -341.76 Td -(6761 6874 7020 7289) 83.0018 Tj --8527.18 TJm +17.4613 -275.302 Td +(0330 2704 4607 4619) 83.0018 Tj +-8527.14 TJm (4171 4221 4222 4224) 83.0018 Tj -0 -351.254 Td -(backcmd 6796 7014) 74.2647 Tj --9530.43 TJm +17.4613 -284.795 Td +(4656 4982) 39.3166 Tj +-11537.3 TJm (buf 2900) 34.9481 Tj -17.4609 -360.747 Td -(6796 6809 6875 7014) 83.0018 Tj --8527.18 TJm +0 -294.2883 Td +(argstr 2721) 48.0537 Tj +-14547 TJm (0200 0211 0212 0213) 83.0018 Tj -17.4609 -370.24 Td -(7016 7142 7255 7290) 83.0018 Tj --8527.18 TJm +17.4613 -303.7817 Td +(0331 2721 4668 4758) 83.0018 Tj +-8527.14 TJm (0253 2900 2904 2905) 83.0018 Tj -0 -379.734 Td -(BACKSPACE 6216) 61.1592 Tj --13042 TJm +17.4613 -313.2747 Td +(4858 4908 4923 4935) 83.0018 Tj +-8527.14 TJm (2906 3310 3325 3375) 83.0018 Tj -17.4609 -389.227 Td -(6216 6234 6263 6426) 83.0018 Tj --8527.18 TJm +17.4613 -322.7676 Td +(4957) 17.4741 Tj +-16052.1 TJm (3404 3454 3456 3459) 83.0018 Tj -17.4609 -398.72 Td -(6432) 17.4741 Tj --16052.2 TJm +0 -332.2606 Td +(BACK 6861) 39.3166 Tj +-15550.3 TJm (3527 3529 3535 3540) 83.0018 Tj -0 -408.213 Td +17.4613 -341.754 Td +(6861 6974 7120 7389) 83.0018 Tj +-8527.14 TJm +(3553 3564 3567 3577) 83.0018 Tj +0 -351.2473 Td +(backcmd 6896 7114) 74.2647 Tj +-11537 TJm +(3601 3604 3614 3624) 83.0018 Tj +17.4613 -360.7407 Td +(6896 6909 6975 7114) 83.0018 Tj +-8527.14 TJm +(3639 3669 3681 3692) 83.0018 Tj +17.4613 -370.2337 Td +(7116 7242 7355 7390) 83.0018 Tj +-8527.14 TJm +(3707 3732 3854 3955) 83.0018 Tj +0 -379.727 Td +(BACKSPACE 6266) 61.1592 Tj +-13042 TJm +(3979 4013 4055 4105) 83.0018 Tj +17.4613 -389.2204 Td +(6266 6284 6313 6476) 83.0018 Tj +-8527.14 TJm +(4155 4215 6354 6366) 83.0018 Tj +17.4613 -398.7133 Td +(6482) 17.4741 Tj +-16052.1 TJm +(6369 6372 6435 6442) 83.0018 Tj +0 -408.2067 Td (balloc 3704) 48.0537 Tj -14547 TJm -(3553 3564 3567 3577) 83.0018 Tj -17.4609 -417.707 Td +(6453 6474 6487 6518) 83.0018 Tj +17.4613 -417.7001 Td (3704 3725 4019 4030) 83.0018 Tj --8527.18 TJm -(3601 3604 3614 3624) 83.0018 Tj -17.4609 -427.2 Td +-8527.14 TJm +(6984 6987 6988 6989) 83.0018 Tj +17.4613 -427.193 Td (4040) 17.4741 Tj --16052.2 TJm -(3639 3669 3681 3692) 83.0018 Tj -0 -436.693 Td +-16052.1 TJm +(7003 7015 7016 7019) 83.0018 Tj +0 -436.6864 Td (BBLOCK 3196) 48.0537 Tj -14547 TJm -(3707 3732 3854 3955) 83.0018 Tj -17.4609 -446.187 Td +(7020 7021 7025) 61.1592 Tj +17.4613 -446.1798 Td (3196 3713 3739) 61.1592 Tj +-9028.94 TJm +(bufhead 3535) 52.4222 Tj +0 -455.6731 Td +(bfree 3730) 43.6851 Tj +-15048.7 TJm +(3535 3551 3552 3554) 83.0018 Tj +17.4613 -465.1665 Td +(3730 4060 4070) 61.1592 Tj -11035.5 TJm -(3979 4013 4055 4105) 83.0018 Tj -0 -455.68 Td -(B_BUSY 2909) 48.0537 Tj --14547 TJm -(4155 4215 6304 6316) 83.0018 Tj -17.4609 -465.173 Td -(2909 3458 3574 3576) 83.0018 Tj --8527.18 TJm -(6319 6322 6385 6392) 83.0018 Tj -17.4609 -474.667 Td -(3580 3588 3589 3616) 83.0018 Tj --8527.18 TJm -(6403 6424 6437 6468) 83.0018 Tj -17.4609 -484.16 Td -(3626 3638) 39.3166 Tj --13543.8 TJm -(6884 6887 6888 6889) 83.0018 Tj -0 -493.654 Td -(B_DIRTY 2911) 52.4222 Tj --14045.3 TJm -(6903 6915 6917) 61.1592 Tj +(3555 3556 3557 3573) 83.0018 Tj +0 -474.6594 Td +(bget 3565) 39.3166 Tj +-15550.3 TJm +(3587 3633 3634 3635) 83.0018 Tj +17.4613 -484.1528 Td +(3565 3596 3606) 61.1592 Tj +-11035.5 TJm +(3636) 17.4741 Tj +0 -493.6462 Td +(binit 3538) 43.6851 Tj +-13042.1 TJm +(buf_table_lock 3530) 83.0018 Tj Q Q q @@ -1461,210 +1475,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 2) 187.846 Tj -0 -28.4801 Td -(bufhead 3535) 52.4222 Tj --14045.3 TJm -(7158 7160 7163 7164) 83.0018 Tj -17.4609 -37.9735 Td -(3535 3551 3552 3554) 83.0018 Tj --8527.18 TJm -(7175 7178 7181 7185) 83.0018 Tj -17.4609 -47.4668 Td -(3555 3556 3557 3573) 83.0018 Tj --8527.18 TJm -(7200 7203 7208 7212) 83.0018 Tj -17.4609 -56.9602 Td -(3587 3633 3634 3635) 83.0018 Tj --8527.18 TJm -(7213 7216 7221 7222) 83.0018 Tj -17.4609 -66.4535 Td -(3636) 17.4741 Tj --16052.2 TJm -(7228 7237 7238 7244) 83.0018 Tj -0 -75.9469 Td -(buf_table_lock 3530) 83.0018 Tj --10533.7 TJm -(7245 7251 7252 7261) 83.0018 Tj -17.4609 -85.4403 Td +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 2) 187.8461 Tj +17.4613 -28.4801 Td (3530 3542 3569 3577) 83.0018 Tj --8527.18 TJm -(7264 7266 7272 7273) 83.0018 Tj -17.4609 -94.9336 Td +-8527.14 TJm +(7248 7250 7253 7255) 83.0018 Tj +17.4613 -37.9735 Td (3581 3592 3629 3641) 83.0018 Tj --8527.18 TJm -(7278 7284 7290 7291) 83.0018 Tj -0 -104.427 Td -(B_VALID 2910) 52.4222 Tj --14045.3 TJm -(7294) 17.4741 Tj -17.4609 -113.92 Td -(2910 3418 3460 3479) 83.0018 Tj --6520.6 TJm -(cmpxchg 0469) 52.4222 Tj -17.4609 -123.414 Td -(3574 3607) 39.3166 Tj --13543.9 TJm -(0469 1434) 39.3166 Tj -0 -132.907 Td +-8527.14 TJm +(7258 7260 7263 7264) 83.0018 Tj +0 -47.4664 Td (bwrite 3614) 48.0537 Tj --12540.4 TJm -(CONSOLE 2957) 52.4222 Tj -17.4609 -142.4 Td +-14547 TJm +(7275 7278 7281 7285) 83.0018 Tj +17.4613 -56.9598 Td (0213 3614 3617 3696) 83.0018 Tj --8527.18 TJm -(2957 6506 6507) 61.1592 Tj -17.4609 -151.894 Td +-8527.14 TJm +(7300 7303 7308 7312) 83.0018 Tj +17.4613 -66.4531 Td (3718 3745 3966 3990) 83.0018 Tj --6520.6 TJm -(console_init 6501) 74.2647 Tj -17.4609 -161.387 Td +-8527.14 TJm +(7313 7316 7321 7322) 83.0018 Tj +17.4613 -75.9465 Td (4041 4172) 39.3166 Tj --13543.9 TJm -(0216 1244 6501) 61.1592 Tj -0 -170.88 Td +-13543.8 TJm +(7328 7337 7338 7344) 83.0018 Tj +0 -85.4399 Td (bzero 3690) 43.6851 Tj --13042.1 TJm -(console_intr 6412) 74.2647 Tj -17.4609 -180.374 Td +-15048.7 TJm +(7345 7351 7352 7361) 83.0018 Tj +17.4613 -94.9332 Td (3690 3736) 39.3166 Tj --13543.9 TJm -(0218 6198 6412) 61.1592 Tj -0 -189.867 Td -(C 6031 6409) 48.0537 Tj --12540.4 TJm -(console_lock 6220) 74.2647 Tj -17.4609 -199.361 Td -(6031 6079 6104 6105) 83.0018 Tj --8527.18 TJm -(6220 6335 6381 6390) 83.0018 Tj -17.4609 -208.854 Td -(6106 6107 6108 6110) 83.0018 Tj --8527.18 TJm -(6393 6503) 39.3166 Tj -17.4609 -218.347 Td -(6409 6419 6422 6429) 83.0018 Tj +-13543.8 TJm +(7364 7366 7372 7373) 83.0018 Tj +0 -104.4266 Td +(B_BUSY 2909) 48.0537 Tj +-14547 TJm +(7378 7384 7390 7391) 83.0018 Tj +17.4613 -113.9199 Td +(2909 3458 3574 3576) 83.0018 Tj +-8527.14 TJm +(7394) 17.4741 Tj +17.4613 -123.4133 Td +(3580 3588 3589 3616) 83.0018 Tj -6520.6 TJm -(console_read 6451) 74.2647 Tj -17.4609 -227.841 Td -(6439 6469) 39.3166 Tj --13543.9 TJm -(6451 6507) 39.3166 Tj -0 -237.334 Td -(CAPSLOCK 6012) 56.7907 Tj +(CONSOLE 2957) 52.4222 Tj +17.4613 -132.9067 Td +(3626 3638) 39.3166 Tj +-13543.8 TJm +(2957 6556 6557) 61.1592 Tj +0 -142.4 Td +(B_DIRTY 2911) 52.4222 Tj +-12038.8 TJm +(console_init 6551) 74.2647 Tj +17.4613 -151.8934 Td +(2911 3387 3413 3418) 83.0018 Tj +-8527.14 TJm +(0216 1231 6551) 61.1592 Tj +17.4613 -161.3867 Td +(3460 3479 3618) 61.1592 Tj +-9028.94 TJm +(console_intr 6462) 74.2647 Tj +0 -170.8801 Td +(B_VALID 2910) 52.4222 Tj +-14045.3 TJm +(0218 6248 6462) 61.1592 Tj +17.4613 -180.3735 Td +(2910 3417 3460 3479) 83.0018 Tj +-6520.6 TJm +(console_lock 6270) 74.2647 Tj +17.4613 -189.8668 Td +(3574 3607) 39.3166 Tj +-13543.8 TJm +(6270 6385 6431 6440) 83.0018 Tj +0 -199.3602 Td +(C 6081 6459) 48.0537 Tj +-14547 TJm +(6443 6553) 39.3166 Tj +17.4613 -208.8535 Td +(6081 6129 6154 6155) 83.0018 Tj +-6520.6 TJm +(console_read 6501) 74.2647 Tj +17.4613 -218.3469 Td +(6156 6157 6158 6160) 83.0018 Tj +-8527.14 TJm +(6501 6557) 39.3166 Tj +17.4613 -227.8403 Td +(6459 6469 6472 6479) 83.0018 Tj +-6520.6 TJm +(console_write 6435) 78.6333 Tj +17.4613 -237.3336 Td +(6489 6519) 39.3166 Tj +-13543.8 TJm +(6435 6556) 39.3166 Tj +0 -246.827 Td +(CAPSLOCK 6062) 56.7907 Tj -11537.1 TJm -(console_write 6385) 78.6333 Tj -17.4609 -246.827 Td -(6012 6045 6186) 61.1592 Tj +(cons_putc 6333) 61.1592 Tj +17.4613 -256.3203 Td +(6062 6095 6236) 61.1592 Tj -11035.5 TJm -(6385 6506) 39.3166 Tj -0 -256.321 Td -(cga_putc 6251) 56.7907 Tj --11537.1 TJm -(cons_putc 6283) 61.1592 Tj -17.4609 -265.814 Td -(6251 6292) 39.3166 Tj --13543.9 TJm -(6283 6322 6346 6364) 83.0018 Tj -0 -275.307 Td -(cli 0482) 34.9481 Tj --16052 TJm -(6367 6371 6372 6392) 83.0018 Tj -17.4609 -284.8 Td -(0482 0484 0914 1027) 83.0018 Tj --8527.18 TJm -(6426 6432 6438) 61.1592 Tj -17.4609 -294.294 Td -(1431 6286 6520) 61.1592 Tj --9028.94 TJm +(6333 6372 6396 6414) 83.0018 Tj +0 -265.8137 Td +(cga_putc 6301) 56.7907 Tj +-13543.7 TJm +(6417 6421 6422 6442) 83.0018 Tj +17.4613 -275.3071 Td +(6301 6342) 39.3166 Tj +-13543.8 TJm +(6476 6482 6488) 61.1592 Tj +0 -284.8004 Td +(cli 0464) 34.9481 Tj +-14045.5 TJm (context 1515) 52.4222 Tj -0 -303.787 Td -(cmd 6765) 34.9481 Tj +17.4613 -294.2938 Td +(0464 0466 0914 1028) 83.0018 Tj +-8527.14 TJm +(0201 0308 1515 1540) 83.0018 Tj +17.4613 -303.7871 Td +(1460 6336 6570) 61.1592 Tj +-11035.5 TJm +(1560 1746 1747 1748) 83.0018 Tj +0 -313.2805 Td +(cmd 6865) 34.9481 Tj -16052 TJm -(0201 0311 1515 1540) 83.0018 Tj -17.4609 -313.281 Td -(6765 6777 6786 6787) 83.0018 Tj --8527.18 TJm -(1568 1740 1741 1742) 83.0018 Tj -17.4609 -322.774 Td -(6792 6793 6798 6802) 83.0018 Tj --8527.18 TJm -(1828 1862 2129) 61.1592 Tj -17.4609 -332.267 Td -(6806 6815 6818 6823) 83.0018 Tj +(1832 1864 2129) 61.1592 Tj +17.4613 -322.7739 Td +(6865 6877 6886 6887) 83.0018 Tj -6520.6 TJm -(copyproc 1704) 56.7907 Tj -17.4609 -341.761 Td -(6831 6837 6841 6851) 83.0018 Tj --8527.18 TJm -(0296 1704 1757 2811) 83.0018 Tj -17.4609 -351.254 Td -(6875 6877 6952 6955) 83.0018 Tj +(copyproc 1709) 56.7907 Tj +17.4613 -332.2672 Td +(6892 6893 6898 6902) 83.0018 Tj +-8527.14 TJm +(0292 1709 1762 2812) 83.0018 Tj +17.4613 -341.7606 Td +(6906 6915 6918 6923) 83.0018 Tj -6520.6 TJm -(cp 1560) 30.5796 Tj -17.4609 -360.747 Td -(6957 6958 6959 6960) 83.0018 Tj --8527.18 TJm -(1560 1657 1660 1661) 83.0018 Tj -17.4609 -370.241 Td -(6963 6964 6966 6968) 83.0018 Tj --8527.18 TJm +(cp 1573) 30.5796 Tj +17.4613 -351.2539 Td +(6931 6937 6941 6951) 83.0018 Tj +-8527.14 TJm +(1573 1657 1660 1661) 83.0018 Tj +17.4613 -360.7473 Td +(6975 6977 7052 7055) 83.0018 Tj +-8527.14 TJm (1662 1663 1664 1665) 83.0018 Tj -17.4609 -379.734 Td -(6969 6970 6971 6972) 83.0018 Tj --8527.18 TJm -(1666 1825 1832 1855) 83.0018 Tj -17.4609 -389.227 Td -(6973 6974 6975 6976) 83.0018 Tj --8527.18 TJm -(1862 1870 1884 1905) 83.0018 Tj -17.4609 -398.721 Td -(6979 6980 6982 6984) 83.0018 Tj --8527.18 TJm -(1923 1924 1928 2009) 83.0018 Tj -17.4609 -408.214 Td -(6985 6986 6987 6988) 83.0018 Tj --8527.18 TJm -(2014 2015 2016 2020) 83.0018 Tj -17.4609 -417.707 Td -(6989 7000 7001 7003) 83.0018 Tj --8527.18 TJm -(2021 2026 2030 2038) 83.0018 Tj -17.4609 -427.201 Td -(7005 7006 7007 7008) 83.0018 Tj --8527.18 TJm -(2039 2066 2084 2090) 83.0018 Tj -17.4609 -436.694 Td -(7009 7010 7013 7014) 83.0018 Tj --8527.18 TJm -(2537 2539 2541 2574) 83.0018 Tj -17.4609 -446.188 Td -(7016 7018 7019 7020) 83.0018 Tj --8527.18 TJm -(2582 2583 2590 2595) 83.0018 Tj -17.4609 -455.681 Td -(7021 7022 7112 7113) 83.0018 Tj --8527.18 TJm -(2696 2710 2712 2726) 83.0018 Tj -17.4609 -465.174 Td -(7114 7115 7117 7121) 83.0018 Tj --8527.18 TJm -(2778 2780 2783 2784) 83.0018 Tj -17.4609 -474.668 Td -(7124 7130 7131 7134) 83.0018 Tj --8527.18 TJm -(2811 2843 2860 2874) 83.0018 Tj -17.4609 -484.161 Td -(7137 7139 7142 7146) 83.0018 Tj --8527.18 TJm -(4361 4571 4588 4589) 83.0018 Tj -17.4609 -493.654 Td -(7148 7150 7153 7155) 83.0018 Tj --8527.18 TJm -(4605 4607 4609 4617) 83.0018 Tj +17.4613 -370.2407 Td +(7057 7058 7059 7060) 83.0018 Tj +-8527.14 TJm +(1666 1857 1864 1872) 83.0018 Tj +17.4613 -379.734 Td +(7063 7064 7066 7068) 83.0018 Tj +-8527.14 TJm +(1886 1905 1923 1924) 83.0018 Tj +17.4613 -389.2274 Td +(7069 7070 7071 7072) 83.0018 Tj +-8527.14 TJm +(1928 2009 2014 2015) 83.0018 Tj +17.4613 -398.7207 Td +(7073 7074 7075 7076) 83.0018 Tj +-8527.14 TJm +(2016 2020 2021 2026) 83.0018 Tj +17.4613 -408.2141 Td +(7079 7080 7082 7084) 83.0018 Tj +-8527.14 TJm +(2030 2038 2039 2066) 83.0018 Tj +17.4613 -417.7075 Td +(7085 7086 7087 7088) 83.0018 Tj +-8527.14 TJm +(2084 2090 2537 2539) 83.0018 Tj +17.4613 -427.2008 Td +(7089 7100 7101 7103) 83.0018 Tj +-8527.14 TJm +(2541 2571 2579 2580) 83.0018 Tj +17.4613 -436.6942 Td +(7105 7106 7107 7108) 83.0018 Tj +-8527.14 TJm +(2586 2591 2696 2710) 83.0018 Tj +17.4613 -446.1875 Td +(7109 7110 7113 7114) 83.0018 Tj +-8527.14 TJm +(2712 2726 2778 2780) 83.0018 Tj +17.4613 -455.6809 Td +(7116 7118 7119 7120) 83.0018 Tj +-8527.14 TJm +(2783 2784 2812 2845) 83.0018 Tj +17.4613 -465.1743 Td +(7121 7122 7212 7213) 83.0018 Tj +-8527.14 TJm +(2873 4361 4571 4588) 83.0018 Tj +17.4613 -474.6676 Td +(7214 7215 7217 7221) 83.0018 Tj +-8527.14 TJm +(4589 4646 4943 4944) 83.0018 Tj +17.4613 -484.161 Td +(7224 7230 7231 7234) 83.0018 Tj +-8527.14 TJm +(4963 4969 4989 5097) 83.0018 Tj +17.4613 -493.6543 Td +(7237 7239 7242 7246) 83.0018 Tj +-8527.14 TJm +(5101 5102 5103 5104) 83.0018 Tj Q Q Q @@ -1692,8 +1706,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -1708,210 +1721,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 3) 187.846 Tj -17.4609 -28.4801 Td -(4619 4621 4646 4943) 83.0018 Tj --6520.6 TJm -(DIRSIZ 3201) 48.0537 Tj -17.4609 -37.9735 Td -(4944 4963 4969 4989) 83.0018 Tj --8527.18 TJm -(3201 3205 4205 4272) 83.0018 Tj -17.4609 -47.4668 Td -(5097 5101 5102 5103) 83.0018 Tj --8527.18 TJm +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 3) 187.8461 Tj +17.4613 -28.4801 Td +(5105 5106 5258 5279) 83.0018 Tj +-8527.14 TJm (4327 4328 4391 4665) 83.0018 Tj -17.4609 -56.9602 Td -(5104 5105 5106 5258) 83.0018 Tj --8527.18 TJm +17.4613 -37.9735 Td +(6511) 17.4741 Tj +-16052.1 TJm (4755 4805) 39.3166 Tj -17.4609 -66.4535 Td -(5280 6461) 39.3166 Tj --11537.3 TJm +0 -47.4664 Td +(cprintf 6377) 52.4222 Tj +-12038.8 TJm (disk_1_present 3327) 83.0018 Tj -0 -75.9469 Td -(cprintf 6327) 52.4222 Tj --14045.3 TJm +17.4613 -56.9598 Td +(0217 1221 1255 1262) 83.0018 Tj +-8527.14 TJm (3327 3364 3462) 61.1592 Tj -17.4609 -85.4403 Td -(0217 1232 1261 2127) 83.0018 Tj +17.4613 -66.4531 Td +(2127 2131 2133 2235) 83.0018 Tj -6520.6 TJm (DPL_USER 0664) 56.7907 Tj -17.4609 -94.9336 Td -(2131 2133 2235 2328) 83.0018 Tj --8527.18 TJm -(0664 1689 1690 1762) 83.0018 Tj -17.4609 -104.427 Td -(2569 2576 2581 2782) 83.0018 Tj --8527.18 TJm -(1763 2522 2590) 61.1592 Tj -17.4609 -113.92 Td -(3408 5637 5862 6327) 83.0018 Tj +17.4613 -75.9465 Td +(2328 2565 2573 2578) 83.0018 Tj +-8527.14 TJm +(0664 1690 1691 1767) 83.0018 Tj +17.4613 -85.4399 Td +(2782 5637 5761 5912) 83.0018 Tj +-8527.14 TJm +(1768 2522 2586) 61.1592 Tj +17.4613 -94.9332 Td +(6377 6572 6573 6574) 83.0018 Tj -6520.6 TJm -(E0ESC 6016) 43.6851 Tj -17.4609 -123.414 Td -(6522 6523 6524 6527) 83.0018 Tj --8527.18 TJm -(6016 6170 6174 6175) 83.0018 Tj -0 -132.907 Td -(cpu 1566 5751) 56.7907 Tj +(E0ESC 6066) 43.6851 Tj +17.4613 -104.4266 Td +(6577) 17.4741 Tj +-16052.1 TJm +(6066 6220 6224 6225) 83.0018 Tj +0 -113.9199 Td +(cpu 1557 5751) 56.7907 Tj -13543.7 TJm -(6177 6180) 39.3166 Tj -17.4609 -142.4 Td -(0256 0269 1232 1251) 83.0018 Tj +(6227 6230) 39.3166 Tj +17.4613 -123.4133 Td +(0256 0269 1221 1255) 83.0018 Tj -6520.6 TJm (elfhdr 0805) 48.0537 Tj -17.4609 -151.894 Td -(1261 1263 1266 1269) 83.0018 Tj --8527.18 TJm -(0805 1119 1123 5014) 83.0018 Tj -17.4609 -161.387 Td -(1280 1287 1306 1417) 83.0018 Tj +17.4613 -132.9067 Td +(1257 1258 1260 1262) 83.0018 Tj +-8527.14 TJm +(0805 1118 1122 5014) 83.0018 Tj +17.4613 -142.4 Td +(1271 1279 1306 1367) 83.0018 Tj -6520.6 TJm (ELF_MAGIC 0802) 61.1592 Tj -17.4609 -170.88 Td -(1430 1432 1445 1458) 83.0018 Tj --8527.18 TJm -(0802 1129 5029) 61.1592 Tj -17.4609 -180.374 Td -(1465 1491 1560 1566) 83.0018 Tj +17.4613 -151.8934 Td +(1391 1408 1442 1461) 83.0018 Tj +-8527.14 TJm +(0802 1128 5029) 61.1592 Tj +17.4613 -161.3867 Td +(1462 1470 1472 1557) 83.0018 Tj -6520.6 TJm (ELF_PROG_LOAD 0836) 78.6333 Tj -17.4609 -189.867 Td -(1576 1674 1676 1828) 83.0018 Tj --8527.18 TJm +17.4613 -170.8801 Td +(1568 1674 1677 1794) 83.0018 Tj +-8527.14 TJm (0836 5034 5061) 61.1592 Tj -17.4609 -199.361 Td -(1859 1862 2548 2552) 83.0018 Tj +17.4613 -180.3735 Td +(1811 1814 1861 1864) 83.0018 Tj -6520.6 TJm -(EOI 5660) 34.9481 Tj -17.4609 -208.854 Td -(2569 2576 2577 2581) 83.0018 Tj --8527.18 TJm -(5660 5737 5763) 61.1592 Tj -17.4609 -218.347 Td -(2582 2585 5512 5513) 83.0018 Tj +(EOI 5663) 34.9481 Tj +17.4613 -189.8668 Td +(2548 2565 2566 2573) 83.0018 Tj +-8527.14 TJm +(5663 5734 5775) 61.1592 Tj +17.4613 -199.3602 Td +(2574 2578 2579 5512) 83.0018 Tj -6520.6 TJm -(ERROR 5678) 43.6851 Tj -17.4609 -227.841 Td -(5751 6522) 39.3166 Tj --13543.8 TJm -(5678 5730) 39.3166 Tj -0 -237.334 Td -(cpuid 0451) 43.6851 Tj --13042.1 TJm -(ESR 5663) 34.9481 Tj -17.4609 -246.827 Td -(0451 0455 1265 1439) 83.0018 Tj --8527.18 TJm -(5663 5733 5734) 61.1592 Tj -17.4609 -256.321 Td -(1462) 17.4741 Tj --14045.6 TJm -(EXEC 6757) 39.3166 Tj -0 -265.814 Td +(ERROR 5681) 43.6851 Tj +17.4613 -208.8535 Td +(5513 5751 5761 6572) 83.0018 Tj +-8527.14 TJm +(5681 5727) 39.3166 Tj +0 -218.3469 Td (create 4801) 48.0537 Tj --14547 TJm -(6757 6822 6959 7265) 83.0018 Tj -17.4609 -275.307 Td +-12540.5 TJm +(ESR 5666) 34.9481 Tj +17.4613 -227.8403 Td (4801 4843 4862 4911) 83.0018 Tj --6520.6 TJm -(execcmd 6769 6953) 74.2647 Tj -17.4609 -284.8 Td +-8527.14 TJm +(5666 5730 5731) 61.1592 Tj +17.4613 -237.3336 Td (4923) 17.4741 Tj --16052.2 TJm -(6769 6810 6823 6953) 83.0018 Tj -0 -294.294 Td -(CRTPORT 6214) 52.4222 Tj +-14045.6 TJm +(EXEC 6857) 39.3166 Tj +0 -246.827 Td +(CRTPORT 6264) 52.4222 Tj -14045.3 TJm -(6955 7221 7227 7228) 83.0018 Tj -17.4609 -303.787 Td -(6214 6256 6257 6258) 83.0018 Tj --8527.18 TJm -(7256 7266) 39.3166 Tj -17.4609 -313.281 Td -(6259 6275 6276 6277) 83.0018 Tj +(6857 6922 7059 7365) 83.0018 Tj +17.4613 -256.3203 Td +(6264 6306 6307 6308) 83.0018 Tj -6520.6 TJm -(exit 2004) 39.3166 Tj -17.4609 -322.774 Td -(6278) 17.4741 Tj --16052.2 TJm -(0297 2004 2041 2538) 83.0018 Tj -0 -332.267 Td -(CTL 6009) 34.9481 Tj +(execcmd 6869 7053) 74.2647 Tj +17.4613 -265.8137 Td +(6309 6325 6326 6327) 83.0018 Tj +-8527.14 TJm +(6869 6910 6923 7053) 83.0018 Tj +17.4613 -275.3071 Td +(6328) 17.4741 Tj +-16052.1 TJm +(7055 7321 7327 7328) 83.0018 Tj +0 -284.8004 Td +(CTL 6059) 34.9481 Tj -16052 TJm -(2542 2591 2820 6615) 83.0018 Tj -17.4609 -341.761 Td -(6009 6035 6039 6185) 83.0018 Tj --8527.18 TJm -(6618 6676 6681 6711) 83.0018 Tj -0 -351.254 Td +(7356 7366) 39.3166 Tj +17.4613 -294.2938 Td +(6059 6085 6089 6235) 83.0018 Tj +-6520.6 TJm +(exit 2004) 39.3166 Tj +0 -303.7871 Td +(curproc 1789) 52.4222 Tj +-14045.3 TJm +(0294 2004 2041 2538) 83.0018 Tj +17.4613 -313.2805 Td +(0293 1559 1573 1789) 83.0018 Tj +-8527.14 TJm +(2542 2587 2822 6715) 83.0018 Tj +17.4613 -322.7739 Td +(1794 1829 1836) 61.1592 Tj +-11035.5 TJm +(6718 6776 6781 6811) 83.0018 Tj +0 -332.2668 Td (devsw 2950) 43.6851 Tj -15048.7 TJm -(6816 6825 6835 6880) 83.0018 Tj -17.4609 -360.747 Td +(6916 6925 6935 6980) 83.0018 Tj +17.4613 -341.7602 Td (2950 2955 4108 4110) 83.0018 Tj --8527.18 TJm -(6920 6927) 39.3166 Tj -17.4609 -370.241 Td -(4158 4160 4407 6506) 83.0018 Tj +-8527.14 TJm +(7028 7035) 39.3166 Tj +17.4613 -351.2536 Td +(4158 4160 4407 6556) 83.0018 Tj -6520.6 TJm (fdalloc 4583) 52.4222 Tj -17.4609 -379.734 Td -(6507) 17.4741 Tj --16052.2 TJm +17.4613 -360.7469 Td +(6557) 17.4741 Tj +-16052.1 TJm (4583 4632 4874 4987) 83.0018 Tj -0 -389.227 Td +0 -370.2403 Td (dinode 3173) 48.0537 Tj --12540.4 TJm +-12540.5 TJm (fetchint 2666) 56.7907 Tj -17.4609 -398.721 Td +17.4613 -379.7336 Td (3173 3187 3855 3868) 83.0018 Tj --8527.18 TJm -(0333 2666 2696 4963) 83.0018 Tj -17.4609 -408.214 Td +-8527.14 TJm +(0332 2666 2696 4963) 83.0018 Tj +17.4613 -389.227 Td (3956 3962 3980 3983) 83.0018 Tj -6520.6 TJm (fetchstr 2678) 56.7907 Tj -0 -417.707 Td +0 -398.7204 Td (dirent 3203) 48.0537 Tj -14547 TJm -(0334 2678 2726 4969) 83.0018 Tj -17.4609 -427.201 Td +(0333 2678 2726 4969) 83.0018 Tj +17.4613 -408.2137 Td (3203 4216 4223 4224) 83.0018 Tj -6520.6 TJm (file 3100) 39.3166 Tj -17.4609 -436.694 Td +17.4613 -417.7071 Td (4255 4705 4754) 61.1592 Tj -11035.5 TJm (0202 0225 0226 0227) 83.0018 Tj -0 -446.188 Td +0 -427.2004 Td (dirlink 4252) 52.4222 Tj -14045.3 TJm -(0229 0230 0231 0290) 83.0018 Tj -17.4609 -455.681 Td +(0229 0230 0231 0286) 83.0018 Tj +17.4613 -436.6938 Td (0234 4252 4267 4275) 83.0018 Tj --8527.18 TJm +-8527.14 TJm (1538 3100 4403 4409) 83.0018 Tj -17.4609 -465.174 Td +17.4613 -446.1872 Td (4684 4831 4842) 61.1592 Tj -11035.5 TJm (4418 4425 4426 4427) 83.0018 Tj -0 -474.668 Td +0 -455.6805 Td (dirlookup 4212) 61.1592 Tj -13042 TJm (4429 4437 4438 4452) 83.0018 Tj -17.4609 -484.161 Td +17.4613 -465.1739 Td (0235 4212 4219 4259) 83.0018 Tj --8527.18 TJm +-8527.14 TJm (4454 4478 4502 4522) 83.0018 Tj -17.4609 -493.654 Td +17.4613 -474.6672 Td (4374 4770 4811) 61.1592 Tj -11035.5 TJm (4558 4564 4567 4583) 83.0018 Tj +0 -484.1606 Td +(DIRSIZ 3201) 48.0537 Tj +-14547 TJm +(4603 4615 4627 4642) 83.0018 Tj +17.4613 -493.654 Td +(3201 3205 4205 4272) 83.0018 Tj +-8527.14 TJm +(4653 4855 4979 5155) 83.0018 Tj Q Q q @@ -1925,210 +1938,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 4) 187.846 Tj -17.4609 -28.4801 Td -(4603 4615 4627 4642) 83.0018 Tj --6520.6 TJm -(ialloc 3952) 48.0537 Tj -17.4609 -37.9735 Td -(4653 4855 4979 5155) 83.0018 Tj --8527.18 TJm +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 4) 187.8461 Tj +17.4613 -28.4801 Td +(5170 6878 6933 6934) 83.0018 Tj +-8527.14 TJm (0236 3952 3972 4821) 83.0018 Tj -17.4609 -47.4668 Td -(5170 6778 6833 6834) 83.0018 Tj --6520.6 TJm +17.4613 -37.9735 Td +(7064 7072 7272) 61.1592 Tj +-9028.94 TJm (IBLOCK 3190) 48.0537 Tj -17.4609 -56.9602 Td -(6964 6972 7172) 61.1592 Tj --11035.5 TJm -(3190 3867 3961 3982) 83.0018 Tj -0 -66.4535 Td +0 -47.4664 Td (filealloc 4419) 61.1592 Tj --11035.4 TJm -(I_BUSY 3266) 48.0537 Tj -17.4609 -75.9469 Td +-13042 TJm +(3190 3867 3961 3982) 83.0018 Tj +17.4613 -56.9598 Td (0225 4419 4874 5176) 83.0018 Tj --8527.18 TJm -(3266 3861 3863 3886) 83.0018 Tj -0 -85.4403 Td +-6520.6 TJm +(ICRHI 5674) 43.6851 Tj +0 -66.4531 Td (fileclose 4452) 61.1592 Tj -13042 TJm -(3890 3907 3909 3915) 83.0018 Tj -17.4609 -94.9336 Td +(5674 5737 5821 5833) 83.0018 Tj +17.4613 -75.9465 Td (0226 2015 4452 4458) 83.0018 Tj -6520.6 TJm -(ICRHI 5671) 43.6851 Tj -17.4609 -104.427 Td +(ICRLO 5667) 43.6851 Tj +17.4613 -85.4399 Td (4473 4647 4876 4990) 83.0018 Tj --8527.18 TJm -(5671 5740 5786 5792) 83.0018 Tj -17.4609 -113.92 Td +-8527.14 TJm +(5667 5738 5739 5822) 83.0018 Tj +17.4613 -94.9332 Td (4991 5205 5209) 61.1592 Tj --9028.94 TJm -(ICRLO 5664) 43.6851 Tj -0 -123.413 Td +-11035.5 TJm +(5824 5834) 39.3166 Tj +0 -104.4266 Td (filedup 4438) 52.4222 Tj --14045.3 TJm -(5664 5741 5742 5787) 83.0018 Tj -17.4609 -132.907 Td -(0227 1735 4438 4442) 83.0018 Tj --8527.18 TJm -(5793) 17.4741 Tj -17.4609 -142.4 Td +-12038.8 TJm +(ID 5660) 30.5796 Tj +17.4613 -113.9199 Td +(0227 1741 4438 4442) 83.0018 Tj +-8527.14 TJm +(5660 5693 5766) 61.1592 Tj +17.4613 -123.4133 Td (4634) 17.4741 Tj -14045.6 TJm -(ID 5657) 30.5796 Tj -0 -151.893 Td +(IDE_BSY 3312) 52.4222 Tj +0 -132.9067 Td (fileinit 4412) 56.7907 Tj -13543.7 TJm -(5657 5754) 39.3166 Tj -17.4609 -161.387 Td -(0228 1241 4412) 61.1592 Tj +(3312 3336) 39.3166 Tj +17.4613 -142.4 Td +(0228 1229 4412) 61.1592 Tj -9028.94 TJm -(IDE_BSY 3312) 52.4222 Tj -0 -170.88 Td +(IDE_CMD_READ 3317) 74.2647 Tj +0 -151.8934 Td (fileread 4502) 56.7907 Tj -13543.7 TJm -(3312 3336) 39.3166 Tj -17.4609 -180.373 Td +(3317 3391) 39.3166 Tj +17.4613 -161.3867 Td (0229 4502 4517 4609) 83.0018 Tj -6520.6 TJm -(IDE_CMD_READ 3317) 74.2647 Tj -0 -189.867 Td +(IDE_CMD_WRITE 3318) 78.6333 Tj +0 -170.8801 Td (filestat 4478) 56.7907 Tj -13543.7 TJm -(3317 3391) 39.3166 Tj -17.4609 -199.36 Td +(3318 3388) 39.3166 Tj +17.4613 -180.3735 Td (0230 4478 4658) 61.1592 Tj -9028.94 TJm -(IDE_CMD_WRITE 3318) 78.6333 Tj -0 -208.854 Td -(file_table_lock 4408) 87.3703 Tj --10032 TJm -(3318 3388) 39.3166 Tj -17.4609 -218.347 Td -(4408 4414 4423 4428) 83.0018 Tj --6520.6 TJm (IDE_DF 3314) 48.0537 Tj -17.4609 -227.84 Td -(4432 4440 4444 4456) 83.0018 Tj --8527.18 TJm -(3314 3338) 39.3166 Tj -17.4609 -237.334 Td -(4460 4466) 39.3166 Tj --11537.3 TJm -(IDE_DRDY 3313) 56.7907 Tj -0 -246.827 Td +0 -189.8664 Td (filewrite 4522) 61.1592 Tj -13042 TJm -(3313 3336) 39.3166 Tj -17.4609 -256.32 Td +(3314 3338) 39.3166 Tj +17.4613 -199.3598 Td (0231 4522 4537 4621) 83.0018 Tj -6520.6 TJm +(IDE_DRDY 3313) 56.7907 Tj +0 -208.8532 Td +(file_table_lock 4408) 87.3703 Tj +-10032 TJm +(3313 3336) 39.3166 Tj +17.4613 -218.3465 Td +(4408 4414 4423 4428) 83.0018 Tj +-6520.6 TJm (IDE_ERR 3315) 52.4222 Tj -0 -265.813 Td -(FL_IF 0610) 43.6851 Tj --15048.7 TJm +17.4613 -227.8399 Td +(4432 4440 4444 4456) 83.0018 Tj +-8527.14 TJm (3315 3338) 39.3166 Tj -17.4609 -275.307 Td -(0610 1766) 39.3166 Tj +17.4613 -237.3332 Td +(4460 4466) 39.3166 Tj -11537.3 TJm (ide_init 3351) 56.7907 Tj -0 -284.8 Td -(fork1 6931) 43.6851 Tj +0 -246.8266 Td +(FL_IF 0610) 43.6851 Tj -15048.7 TJm -(0251 1245 3351) 61.1592 Tj -17.4609 -294.293 Td -(6800 6842 6854 6861) 83.0018 Tj +(0251 1232 3351) 61.1592 Tj +17.4613 -256.32 Td +(0610 1462 1468 1771) 83.0018 Tj -6520.6 TJm (ide_intr 3402) 56.7907 Tj -17.4609 -303.787 Td -(6876 6916 6931) 61.1592 Tj +17.4613 -265.8133 Td +(1855 5758) 39.3166 Tj +-13543.8 TJm +(0252 2557 3402) 61.1592 Tj +0 -275.3067 Td +(fork1 7039) 43.6851 Tj +-13042.1 TJm +(ide_lock 3324) 56.7907 Tj +17.4613 -284.8 Td +(6900 6942 6954 6961) 83.0018 Tj +-8527.14 TJm +(3324 3355 3406 3408) 83.0018 Tj +17.4613 -294.2934 Td +(6976 7024 7039) 61.1592 Tj -11035.5 TJm -(0252 2561 3402) 61.1592 Tj -0 -313.28 Td -(forkret 1878) 52.4222 Tj +(3425 3465 3480 3482) 83.0018 Tj +0 -303.7868 Td +(forkret 1880) 52.4222 Tj -12038.8 TJm -(ide_lock 3324) 56.7907 Tj -17.4609 -322.773 Td -(1615 1741 1878) 61.1592 Tj +(ide_rw 3454) 48.0537 Tj +17.4613 -313.2801 Td +(1614 1747 1880) 61.1592 Tj -11035.5 TJm -(3324 3355 3406 3409) 83.0018 Tj -0 -332.267 Td +(0253 3454 3459 3461) 83.0018 Tj +0 -322.7735 Td (forkret1 2484) 56.7907 Tj -13543.7 TJm -(3426 3465 3480 3482) 83.0018 Tj -17.4609 -341.76 Td -(1616 1884 2483 2484) 83.0018 Tj +(3608 3619) 39.3166 Tj +17.4613 -332.2664 Td +(1615 1886 2483 2484) 83.0018 Tj -6520.6 TJm -(ide_rw 3454) 48.0537 Tj -0 -351.254 Td +(ide_start_request 3375) 96.1073 Tj +0 -341.7598 Td (gatedesc 0751) 56.7907 Tj -13543.7 TJm -(0253 3454 3459 3461) 83.0018 Tj -17.4609 -360.747 Td +(3328 3375 3378 3423) 83.0018 Tj +17.4613 -351.2532 Td (0414 0417 0751 2510) 83.0018 Tj --8527.18 TJm -(3608 3619) 39.3166 Tj -0 -370.24 Td -(getcallerpcs 1471) 74.2647 Tj --9530.42 TJm -(ide_start_request 3375) 96.1073 Tj -17.4609 -379.734 Td -(0315 1446 1471 2129) 83.0018 Tj --8527.18 TJm -(3328 3375 3378 3424) 83.0018 Tj -17.4609 -389.227 Td -(6525) 17.4741 Tj --16052.2 TJm +-8527.14 TJm (3475) 17.4741 Tj -0 -398.72 Td -(getcmd 6884) 48.0537 Tj --12540.4 TJm +0 -360.7465 Td +(getcallerpcs 1422) 74.2647 Tj +-9530.47 TJm (ide_wait_ready 3332) 83.0018 Tj -17.4609 -408.213 Td -(6884 6915) 39.3166 Tj --13543.9 TJm -(3332 3358 3380 3414) 83.0018 Tj -0 -417.707 Td -(gettoken 7056) 56.7907 Tj --11537.1 TJm +17.4613 -370.2399 Td +(0312 1392 1422 2129) 83.0018 Tj +-8527.14 TJm +(3332 3358 3380 3413) 83.0018 Tj +17.4613 -379.7332 Td +(6575) 17.4741 Tj +-14045.6 TJm (idtinit 2528) 52.4222 Tj -17.4609 -427.2 Td -(7056 7141 7145 7157) 83.0018 Tj --8527.18 TJm -(0341 1240 1262 2528) 83.0018 Tj -17.4609 -436.693 Td -(7170 7171 7207 7211) 83.0018 Tj --6520.6 TJm +0 -389.2266 Td +(getcmd 6984) 48.0537 Tj +-14547 TJm +(0340 1256 2528) 61.1592 Tj +17.4613 -398.72 Td +(6984 7015) 39.3166 Tj +-11537.3 TJm (idup 3838) 39.3166 Tj -17.4609 -446.187 Td -(7233) 17.4741 Tj --16052.2 TJm -(0237 1736 3838 4361) 83.0018 Tj -0 -455.68 Td -(growproc 1653) 56.7907 Tj --11537.1 TJm +0 -408.2133 Td +(gettoken 7156) 56.7907 Tj +-13543.7 TJm +(0237 1742 3838 4361) 83.0018 Tj +17.4613 -417.7067 Td +(7156 7241 7245 7257) 83.0018 Tj +-6520.6 TJm (iget 3803) 39.3166 Tj -17.4609 -465.173 Td -(0298 1653 2858) 61.1592 Tj --11035.5 TJm +17.4613 -427.2 Td +(7270 7271 7307 7311) 83.0018 Tj +-8527.14 TJm (3803 3823 3968 4234) 83.0018 Tj -0 -474.667 Td -(holding 1489) 52.4222 Tj --14045.3 TJm +17.4613 -436.6934 Td +(7333) 17.4741 Tj +-16052.1 TJm (4359) 17.4741 Tj -17.4609 -484.16 Td -(0316 1427 1454 1489) 83.0018 Tj --6520.6 TJm +0 -446.1868 Td +(growproc 1653) 56.7907 Tj +-11537.1 TJm (iinit 3789) 43.6851 Tj -17.4609 -493.654 Td -(1857) 17.4741 Tj --16052.2 TJm -(0238 1242 3789) 61.1592 Tj +17.4613 -455.6801 Td +(0295 1653 2858) 61.1592 Tj +-11035.5 TJm +(0238 1230 3789) 61.1592 Tj +0 -465.1735 Td +(holding 1440) 52.4222 Tj +-12038.8 TJm +(ilock 3852) 43.6851 Tj +17.4613 -474.6665 Td +(0313 1378 1404 1440) 83.0018 Tj +-8527.14 TJm +(0239 3852 3858 3878) 83.0018 Tj +17.4613 -484.1598 Td +(1859) 17.4741 Tj +-16052.1 TJm +(4364 4481 4511 4531) 83.0018 Tj +0 -493.6532 Td +(ialloc 3952) 48.0537 Tj +-14547 TJm +(4672 4683 4693 4762) 83.0018 Tj Q Q Q @@ -2156,8 +2169,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -2172,210 +2184,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 5) 187.846 Tj -0 -28.4801 Td -(ilock 3852) 43.6851 Tj --13042.1 TJm -(ioapic_read 5834) 69.8962 Tj -17.4609 -37.9735 Td -(0239 3852 3858 3878) 83.0018 Tj --8527.18 TJm -(5834 5859 5860) 61.1592 Tj -17.4609 -47.4668 Td -(4364 4481 4511 4531) 83.0018 Tj --6520.6 TJm -(ioapic_write 5841) 74.2647 Tj -17.4609 -56.9602 Td -(4672 4683 4693 4762) 83.0018 Tj --8527.18 TJm -(5841 5867 5868 5881) 83.0018 Tj -17.4609 -66.4535 Td +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 5) 187.8461 Tj +17.4613 -28.4801 Td (4774 4809 4813 4825) 83.0018 Tj --8527.18 TJm -(5882) 17.4741 Tj -17.4609 -75.9469 Td -(4867 4937 5020 6394) 83.0018 Tj +-8527.14 TJm +(5932) 17.4741 Tj +17.4613 -37.9735 Td +(4867 4937 5020 6444) 83.0018 Tj -6520.6 TJm -(IO_PIC1 5907) 52.4222 Tj -17.4609 -85.4403 Td -(6463 6485) 39.3166 Tj +(IO_PIC1 5957) 52.4222 Tj +17.4613 -47.4668 Td +(6513 6533) 39.3166 Tj -13543.8 TJm -(5907 5920 5935 5944) 83.0018 Tj -0 -94.9336 Td -(inb 0354) 34.9481 Tj +(5957 5970 5985 5994) 83.0018 Tj +0 -56.9602 Td +(inb 0353) 34.9481 Tj -16052 TJm -(5947 5952 5962 5976) 83.0018 Tj -17.4609 -104.427 Td -(0354 0928 0936 1154) 83.0018 Tj --8527.18 TJm -(5977) 17.4741 Tj -17.4609 -113.92 Td -(3336 3363 5646 6164) 83.0018 Tj +(5997 6002 6012 6026) 83.0018 Tj +17.4613 -66.4535 Td +(0353 0928 0936 1154) 83.0018 Tj +-8527.14 TJm +(6027) 17.4741 Tj +17.4613 -75.9469 Td +(3336 3363 5646 6214) 83.0018 Tj -6520.6 TJm -(IO_PIC2 5908) 52.4222 Tj -17.4609 -123.414 Td -(6167 6232 6257 6259) 83.0018 Tj --8527.18 TJm -(5908 5921 5936 5965) 83.0018 Tj -0 -132.907 Td +(IO_PIC2 5958) 52.4222 Tj +17.4613 -85.4403 Td +(6217 6282 6307 6309) 83.0018 Tj +-8527.14 TJm +(5958 5971 5986 6015) 83.0018 Tj +0 -94.9336 Td (INDIRECT 3168) 56.7907 Tj -13543.7 TJm -(5966 5967 5970 5979) 83.0018 Tj -17.4609 -142.4 Td +(6016 6017 6020 6029) 83.0018 Tj +17.4613 -104.427 Td (3168 4027 4030 4065) 83.0018 Tj --8527.18 TJm -(5980) 17.4741 Tj -17.4609 -151.894 Td +-8527.14 TJm +(6030) 17.4741 Tj +17.4613 -113.9203 Td (4066 4073) 39.3166 Tj -11537.3 TJm -(IO_TIMER1 6559) 61.1592 Tj -0 -161.387 Td -(initlock 1413) 56.7907 Tj +(IO_RTC 5800) 48.0537 Tj +0 -123.4137 Td +(initlock 1363) 56.7907 Tj -13543.7 TJm -(6559 6568 6578 6579) 83.0018 Tj -17.4609 -170.88 Td -(0317 1413 1621 2231) 83.0018 Tj +(5800 5813 5814) 61.1592 Tj +17.4613 -132.9071 Td +(0314 1363 1620 2231) 83.0018 Tj -6520.6 TJm -(IPB 3187) 34.9481 Tj -17.4609 -180.374 Td +(IO_TIMER1 6609) 61.1592 Tj +17.4613 -142.4004 Td (2524 3355 3542 3791) 83.0018 Tj --8527.18 TJm -(3187 3190 3196 3868) 83.0018 Tj -17.4609 -189.867 Td -(4414 5184 6503 6504) 83.0018 Tj --8527.18 TJm -(3962 3983) 39.3166 Tj -0 -199.361 Td +-8527.14 TJm +(6609 6618 6628 6629) 83.0018 Tj +17.4613 -151.8938 Td +(4414 5184 6553 6554) 83.0018 Tj +-6520.6 TJm +(IPB 3187) 34.9481 Tj +0 -161.3871 Td (inode 3252) 43.6851 Tj --13042.1 TJm -(iput 3902) 39.3166 Tj -17.4609 -208.854 Td +-15048.7 TJm +(3187 3190 3196 3868) 83.0018 Tj +17.4613 -170.8805 Td (0203 0234 0235 0236) 83.0018 Tj --8527.18 TJm -(0240 2020 3902 3908) 83.0018 Tj -17.4609 -218.347 Td +-8527.14 TJm +(3962 3983) 39.3166 Tj +17.4613 -180.3739 Td (0237 0239 0240 0241) 83.0018 Tj --8527.18 TJm -(3927 4260 4382 4471) 83.0018 Tj -17.4609 -227.841 Td +-6520.6 TJm +(iput 3902) 39.3166 Tj +17.4613 -189.8672 Td (0242 0243 0245 0246) 83.0018 Tj --8527.18 TJm -(4687 4943) 39.3166 Tj -17.4609 -237.334 Td +-8527.14 TJm +(0240 2020 3902 3908) 83.0018 Tj +17.4613 -199.3606 Td (0247 0248 0249 1539) 83.0018 Tj --6520.6 TJm -(IRQ_ERROR 2384) 61.1592 Tj -17.4609 -246.827 Td +-8527.14 TJm +(3927 4260 4382 4471) 83.0018 Tj +17.4613 -208.8539 Td (2951 2952 3106 3252) 83.0018 Tj --8527.18 TJm -(2384 5730) 39.3166 Tj -17.4609 -256.321 Td +-8527.14 TJm +(4687 4943) 39.3166 Tj +17.4613 -218.3473 Td (3675 3785 3802 3805) 83.0018 Tj -6520.6 TJm -(IRQ_IDE 2383) 52.4222 Tj -17.4609 -265.814 Td +(IRQ_ERROR 2384) 61.1592 Tj +17.4613 -227.8407 Td (3811 3837 3838 3852) 83.0018 Tj --8527.18 TJm -(2383 2560 3356 3357) 83.0018 Tj -17.4609 -275.307 Td +-8527.14 TJm +(2384 5727) 39.3166 Tj +17.4613 -237.334 Td (3884 3902 3924 3951) 83.0018 Tj -6520.6 TJm -(IRQ_KBD 2382) 52.4222 Tj -17.4609 -284.801 Td +(IRQ_IDE 2383) 52.4222 Tj +17.4613 -246.8274 Td (3977 4010 4052 4082) 83.0018 Tj --8527.18 TJm -(2382 2564 6510 6511) 83.0018 Tj -17.4609 -294.294 Td +-8527.14 TJm +(2383 2556 3356 3357) 83.0018 Tj +17.4613 -256.3207 Td (4102 4152 4211 4212) 83.0018 Tj -6520.6 TJm -(IRQ_OFFSET 2379) 65.5277 Tj -17.4609 -303.788 Td +(IRQ_KBD 2382) 52.4222 Tj +17.4613 -265.8141 Td (4252 4256 4353 4356) 83.0018 Tj --8527.18 TJm -(2379 2551 2560 2564) 83.0018 Tj -17.4609 -313.281 Td +-8527.14 TJm +(2382 2560 6560 6561) 83.0018 Tj +17.4613 -275.3075 Td (4388 4395 4666 4702) 83.0018 Tj --8527.18 TJm -(2568 2595 5707 5718) 83.0018 Tj -17.4609 -322.774 Td +-6520.6 TJm +(IRQ_OFFSET 2379) 65.5277 Tj +17.4613 -284.8008 Td (4753 4800 4804 4856) 83.0018 Tj --8527.18 TJm -(5730 5867 5881 5947) 83.0018 Tj -17.4609 -332.268 Td +-8527.14 TJm +(2379 2547 2556 2560) 83.0018 Tj +17.4613 -294.2942 Td (4903 4921 4933 5015) 83.0018 Tj --8527.18 TJm -(5966) 17.4741 Tj -17.4609 -341.761 Td -(6385 6451) 39.3166 Tj --11537.3 TJm -(IRQ_SLAVE 5910) 61.1592 Tj -0 -351.254 Td -(INPUT_BUF 6400) 61.1592 Tj +-8527.14 TJm +(2564 2591 5707 5714) 83.0018 Tj +17.4613 -303.7875 Td +(6435 6501) 39.3166 Tj +-13543.8 TJm +(5727 5917 5931 5997) 83.0018 Tj +0 -313.2809 Td +(INPUT_BUF 6450) 61.1592 Tj -13042 TJm -(5910 5914 5952 5967) 83.0018 Tj -17.4609 -360.748 Td -(6400 6403 6424 6436) 83.0018 Tj +(6016) 17.4741 Tj +17.4613 -322.7743 Td +(6450 6453 6474 6486) 83.0018 Tj -6520.6 TJm -(IRQ_SPURIOUS 2385) 74.2647 Tj -17.4609 -370.241 Td -(6439 6481) 39.3166 Tj --13543.8 TJm -(2385 2568 5707) 61.1592 Tj -0 -379.734 Td -(insl 0363) 39.3166 Tj +(IRQ_SLAVE 5960) 61.1592 Tj +17.4613 -332.2676 Td +(6487 6489 6518) 61.1592 Tj +-11035.5 TJm +(5960 5964 6002 6017) 83.0018 Tj +0 -341.761 Td +(insl 0362) 39.3166 Tj -13543.8 TJm -(IRQ_TIMER 2381) 61.1592 Tj -17.4609 -389.228 Td -(0363 1173 3415) 61.1592 Tj +(IRQ_SPURIOUS 2385) 74.2647 Tj +17.4613 -351.2543 Td +(0362 1173 3414) 61.1592 Tj -11035.5 TJm -(2381 2551 2595 5718) 83.0018 Tj -0 -398.721 Td -(INT_DISABLED 5819) 74.2647 Tj --11537 TJm -(6580) 17.4741 Tj -17.4609 -408.214 Td -(5819 5867) 39.3166 Tj +(2385 2564 5707) 61.1592 Tj +0 -360.7477 Td +(INT_DISABLED 5869) 74.2647 Tj +-9530.47 TJm +(IRQ_TIMER 2381) 61.1592 Tj +17.4613 -370.2411 Td +(5869 5917) 39.3166 Tj +-13543.8 TJm +(2381 2547 2591 5714) 83.0018 Tj +0 -379.7344 Td +(IOAPIC 5858) 48.0537 Tj +-14547 TJm +(6630) 17.4741 Tj +17.4613 -389.2278 Td +(5858 5908) 39.3166 Tj -11537.3 TJm (isdirempty 4702) 65.5277 Tj -0 -417.707 Td -(IOAPIC 5808) 48.0537 Tj --14547 TJm +0 -398.7211 Td +(ioapic_enable 5923) 78.6333 Tj +-11035.3 TJm (4702 4709 4778) 61.1592 Tj -17.4609 -427.201 Td -(5808 5858) 39.3166 Tj --11537.3 TJm +17.4613 -408.2145 Td +(0256 3357 5923 6561) 83.0018 Tj +-6520.6 TJm (ismp 5514) 39.3166 Tj -0 -436.694 Td -(ioapic_enable 5873) 78.6333 Tj --11035.3 TJm -(0280 1247 5514 5613) 83.0018 Tj -17.4609 -446.188 Td -(0256 3357 5873 6511) 83.0018 Tj --8527.18 TJm -(5855 5875) 39.3166 Tj -0 -455.681 Td +0 -417.7079 Td (ioapic_id 5516) 61.1592 Tj --11035.4 TJm +-13042 TJm +(0276 1233 5514 5613) 83.0018 Tj +17.4613 -427.2012 Td +(0257 5516 5628 5911) 83.0018 Tj +-8527.14 TJm +(5905 5925) 39.3166 Tj +17.4613 -436.6946 Td +(5912) 17.4741 Tj +-14045.6 TJm (itrunc 4052) 48.0537 Tj -17.4609 -465.174 Td -(0257 5516 5628 5861) 83.0018 Tj --8527.18 TJm +0 -446.1879 Td +(ioapic_init 5901) 69.8962 Tj +-12038.7 TJm (3675 3911 4052) 61.1592 Tj -17.4609 -474.668 Td -(5862) 17.4741 Tj --14045.6 TJm +17.4613 -455.6813 Td +(0258 1226 5901 5912) 83.0018 Tj +-6520.6 TJm (iunlock 3884) 52.4222 Tj -0 -484.161 Td -(ioapic_init 5851) 69.8962 Tj +0 -465.1747 Td +(ioapic_read 5884) 69.8962 Tj -12038.7 TJm (0241 3884 3887 3926) 83.0018 Tj -17.4609 -493.654 Td -(0258 1237 5851 5862) 83.0018 Tj --8527.18 TJm +17.4613 -474.6676 Td +(5884 5909 5910) 61.1592 Tj +-11035.5 TJm (4371 4483 4514 4534) 83.0018 Tj +0 -484.161 Td +(ioapic_write 5891) 74.2647 Tj +-11537 TJm +(4679 4880 4942 6439) 83.0018 Tj +17.4613 -493.6543 Td +(5891 5917 5918 5931) 83.0018 Tj +-8527.14 TJm +(6506) 17.4741 Tj Q Q q @@ -2389,210 +2401,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 6) 187.846 Tj -17.4609 -28.4801 Td -(4679 4880 4942 6389) 83.0018 Tj --8527.18 TJm -(6024 6067 6089 6113) 83.0018 Tj -17.4609 -37.9735 Td -(6456) 17.4741 Tj --14045.6 TJm -(KEY_UP 6021) 48.0537 Tj -0 -47.4668 Td +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 6) 187.8461 Tj +0 -28.4801 Td (iunlockput 3924) 65.5277 Tj --12540.3 TJm -(6021 6065 6087 6111) 83.0018 Tj -17.4609 -56.9602 Td +-10533.8 TJm +(KEY_RT 6074) 48.0537 Tj +17.4613 -37.9735 Td (0242 3924 4366 4375) 83.0018 Tj --6520.6 TJm -(kfree 2255) 43.6851 Tj -17.4609 -66.4535 Td +-8527.14 TJm +(6074 6117 6139 6163) 83.0018 Tj +17.4613 -47.4664 Td (4378 4674 4686 4692) 83.0018 Tj --8527.18 TJm -(0262 1664 1726 2069) 83.0018 Tj -17.4609 -75.9469 Td +-6520.6 TJm +(KEY_UP 6071) 48.0537 Tj +17.4613 -56.9594 Td (4696 4766 4771 4779) 83.0018 Tj --8527.18 TJm -(2070 2236 2255 2260) 83.0018 Tj -17.4609 -85.4403 Td +-8527.14 TJm +(6071 6115 6137 6161) 83.0018 Tj +17.4613 -66.4524 Td (4780 4787 4791 4812) 83.0018 Tj --8527.18 TJm -(5101 5111 5202 5228) 83.0018 Tj -17.4609 -94.9336 Td -(4815 4822 4833 4834) 83.0018 Tj -6520.6 TJm -(kill 1976) 39.3166 Tj -17.4609 -104.427 Td +(kfree 2255) 43.6851 Tj +17.4613 -75.9453 Td +(4815 4822 4833 4834) 83.0018 Tj +-8527.14 TJm +(0262 1662 1731 2069) 83.0018 Tj +17.4613 -85.4383 Td (4845 4869 4877 4913) 83.0018 Tj --8527.18 TJm -(0299 1976 2581 2837) 83.0018 Tj -17.4609 -113.92 Td +-8527.14 TJm +(2070 2236 2255 2260) 83.0018 Tj +17.4613 -94.9313 Td (4925 4939 5069 5112) 83.0018 Tj --8527.18 TJm -(6717) 17.4741 Tj -0 -123.413 Td +-8527.14 TJm +(5101 5111 5202 5228) 83.0018 Tj +0 -104.4246 Td (iupdate 3977) 52.4222 Tj -12038.8 TJm -(kinit 2225) 43.6851 Tj -17.4609 -132.907 Td +(kill 1976) 39.3166 Tj +17.4613 -113.918 Td (0243 3913 3977 4077) 83.0018 Tj --8527.18 TJm -(0263 1238 2225) 61.1592 Tj -17.4609 -142.4 Td +-8527.14 TJm +(0296 1976 2578 2839) 83.0018 Tj +17.4613 -123.411 Td (4178 4678 4695 4790) 83.0018 Tj +-8527.14 TJm +(6817) 17.4741 Tj +17.4613 -132.9039 Td +(4829 4840) 39.3166 Tj +-11537.3 TJm +(kinit 2225) 43.6851 Tj +0 -142.3973 Td +(I_BUSY 3266) 48.0537 Tj +-14547 TJm +(0263 1227 2225) 61.1592 Tj +17.4613 -151.8907 Td +(3266 3861 3863 3886) 83.0018 Tj -6520.6 TJm (KSTACKSIZE 0152) 65.5277 Tj -17.4609 -151.893 Td -(4829 4840) 39.3166 Tj --13543.9 TJm -(0152 1679 1714 1718) 83.0018 Tj -0 -161.387 Td +17.4613 -161.3836 Td +(3890 3907 3909 3915) 83.0018 Tj +-8527.14 TJm +(0152 1283 1284 1680) 83.0018 Tj +0 -170.877 Td (I_VALID 3267) 52.4222 Tj -14045.3 TJm -(1726 2070) 39.3166 Tj -17.4609 -170.88 Td +(1719 1723 1731 2070) 83.0018 Tj +17.4613 -180.3703 Td (3267 3866 3876 3905) 83.0018 Tj -6520.6 TJm -(lapic_eoi 5760) 61.1592 Tj -0 -180.373 Td +(lapicw 5690) 48.0537 Tj +0 -189.8633 Td (kalloc 2304) 48.0537 Tj -14547 TJm -(0273 2558 2562 2566) 83.0018 Tj -17.4609 -189.867 Td -(0261 1657 1714 1725) 83.0018 Tj --8527.18 TJm -(2570 5760) 39.3166 Tj -17.4609 -199.36 Td -(1759 2231 2304 2310) 83.0018 Tj --6520.6 TJm -(lapic_init 5701) 65.5277 Tj -17.4609 -208.854 Td -(2328 5052 5178) 61.1592 Tj --11035.5 TJm -(0274 1231 1263 5701) 83.0018 Tj -0 -218.347 Td +(5690 5707 5713 5714) 83.0018 Tj +17.4613 -199.3567 Td +(0261 1283 1657 1719) 83.0018 Tj +-8527.14 TJm +(5715 5718 5719 5724) 83.0018 Tj +17.4613 -208.8497 Td +(1730 1764 2231 2304) 83.0018 Tj +-8527.14 TJm +(5727 5730 5731 5734) 83.0018 Tj +17.4613 -218.3426 Td +(2310 2328 5052 5178) 83.0018 Tj +-8527.14 TJm +(5737 5738 5743 5775) 83.0018 Tj +0 -227.836 Td (kalloc_lock 2212) 69.8962 Tj --10032.1 TJm -(lapic_startap 5780) 78.6333 Tj -17.4609 -227.84 Td +-12038.7 TJm +(5821 5822 5824 5833) 83.0018 Tj +17.4613 -237.3293 Td (2212 2231 2265 2293) 83.0018 Tj --8527.18 TJm -(0275 1293 5780) 61.1592 Tj -17.4609 -237.334 Td +-8527.14 TJm +(5834) 17.4741 Tj +17.4613 -246.8223 Td (2312 2316 2322 2326) 83.0018 Tj -6520.6 TJm -(lgdt 0403) 39.3166 Tj -0 -246.827 Td -(KBDATAP 6004) 52.4222 Tj +(lapic_eoi 5772) 61.1592 Tj +0 -256.3157 Td +(KBDATAP 6054) 52.4222 Tj -14045.3 TJm -(0403 0411 0954 1054) 83.0018 Tj -17.4609 -256.32 Td -(6004 6167) 39.3166 Tj --13543.9 TJm -(1696) 17.4741 Tj -0 -265.813 Td -(kbd_getc 6156) 56.7907 Tj +(0271 2554 2558 2562) 83.0018 Tj +17.4613 -265.809 Td +(6054 6217) 39.3166 Tj +-13543.8 TJm +(2567 5772) 39.3166 Tj +0 -275.3024 Td +(kbd_getc 6206) 56.7907 Tj -11537.1 TJm -(lidt 0417) 39.3166 Tj -17.4609 -275.307 Td -(6156 6198) 39.3166 Tj --13543.9 TJm -(0417 0425 2530) 61.1592 Tj -0 -284.8 Td -(kbd_intr 6196) 56.7907 Tj +(lapic_init 5701) 65.5277 Tj +17.4613 -284.7958 Td +(6206 6248) 39.3166 Tj +-13543.8 TJm +(0272 1220 1258 5701) 83.0018 Tj +0 -294.2891 Td +(kbd_intr 6246) 56.7907 Tj -11537.1 TJm -(LINT0 5676) 43.6851 Tj -17.4609 -294.293 Td -(0266 2565 6196) 61.1592 Tj +(lapic_startap 5805) 78.6333 Tj +17.4613 -303.7825 Td +(0266 2561 6246) 61.1592 Tj -11035.5 TJm -(5676 5721) 39.3166 Tj -0 -303.787 Td -(KBS_DIB 6003) 52.4222 Tj --12038.8 TJm -(LINT1 5677) 43.6851 Tj -17.4609 -313.28 Td -(6003 6165) 39.3166 Tj --13543.9 TJm -(5677 5722) 39.3166 Tj -0 -322.773 Td -(KBSTATP 6002) 52.4222 Tj --12038.8 TJm -(LIST 6760) 39.3166 Tj -17.4609 -332.267 Td -(6002 6164) 39.3166 Tj --13543.9 TJm -(6760 6840 7007 7283) 83.0018 Tj -0 -341.76 Td -(KEY_DEL 6028) 52.4222 Tj +(0273 1286 5805) 61.1592 Tj +0 -313.2758 Td +(KBSTATP 6052) 52.4222 Tj -12038.8 TJm -(listcmd 6790 7001) 74.2647 Tj -17.4609 -351.254 Td -(6028 6069 6091 6115) 83.0018 Tj --8527.18 TJm -(6790 6811 6841 7001) 83.0018 Tj -0 -360.747 Td -(KEY_DN 6022) 48.0537 Tj +(lgdt 0403) 39.3166 Tj +17.4613 -322.7692 Td +(6052 6214) 39.3166 Tj +-13543.8 TJm +(0403 0411 0954 1054) 83.0018 Tj +0 -332.2622 Td +(KBS_DIB 6053) 52.4222 Tj +-14045.3 TJm +(1700) 17.4741 Tj +17.4613 -341.7555 Td +(6053 6215) 39.3166 Tj +-11537.3 TJm +(lidt 0417) 39.3166 Tj +0 -351.2489 Td +(KEY_DEL 6078) 52.4222 Tj +-14045.3 TJm +(0417 0425 2530) 61.1592 Tj +17.4613 -360.7422 Td +(6078 6119 6141 6165) 83.0018 Tj +-6520.6 TJm +(LINT0 5679) 43.6851 Tj +0 -370.2356 Td +(KEY_DN 6072) 48.0537 Tj -14547 TJm -(7003 7146 7257 7284) 83.0018 Tj -17.4609 -370.24 Td -(6022 6065 6087 6111) 83.0018 Tj +(5679 5718) 39.3166 Tj +17.4613 -379.729 Td +(6072 6115 6137 6161) 83.0018 Tj -6520.6 TJm -(LPTPORT 6215) 52.4222 Tj -0 -379.734 Td -(KEY_END 6020) 52.4222 Tj +(LINT1 5680) 43.6851 Tj +0 -389.2223 Td +(KEY_END 6070) 52.4222 Tj -14045.3 TJm -(6215 6232 6236 6237) 83.0018 Tj -17.4609 -389.227 Td -(6020 6068 6090 6114) 83.0018 Tj --8527.18 TJm -(6238) 17.4741 Tj -0 -398.72 Td -(KEY_HOME 6019) 56.7907 Tj --11537.1 TJm -(lpt_putc 6228) 56.7907 Tj -17.4609 -408.213 Td -(6019 6068 6090 6114) 83.0018 Tj --8527.18 TJm -(6228 6291) 39.3166 Tj -0 -417.707 Td -(KEY_INS 6027) 52.4222 Tj --12038.8 TJm +(5680 5719) 39.3166 Tj +17.4613 -398.7157 Td +(6070 6118 6140 6164) 83.0018 Tj +-6520.6 TJm +(LIST 6860) 39.3166 Tj +0 -408.209 Td +(KEY_HOME 6069) 56.7907 Tj +-13543.7 TJm +(6860 6940 7107 7383) 83.0018 Tj +17.4613 -417.7024 Td +(6069 6118 6140 6164) 83.0018 Tj +-6520.6 TJm +(listcmd 6890 7101) 74.2647 Tj +0 -427.1958 Td +(KEY_INS 6077) 52.4222 Tj +-14045.3 TJm +(6890 6911 6941 7101) 83.0018 Tj +17.4613 -436.6891 Td +(6077 6119 6141 6165) 83.0018 Tj +-8527.14 TJm +(7103 7246 7357 7384) 83.0018 Tj +0 -446.1825 Td +(KEY_LF 6073) 48.0537 Tj +-12540.5 TJm +(LPTPORT 6265) 52.4222 Tj +17.4613 -455.6758 Td +(6073 6117 6139 6163) 83.0018 Tj +-8527.14 TJm +(6265 6282 6286 6287) 83.0018 Tj +0 -465.1692 Td +(KEY_PGDN 6076) 56.7907 Tj +-13543.7 TJm +(6288) 17.4741 Tj +17.4613 -474.6622 Td +(6076 6116 6138 6162) 83.0018 Tj +-6520.6 TJm +(lpt_putc 6278) 56.7907 Tj +0 -484.1555 Td +(KEY_PGUP 6075) 56.7907 Tj +-13543.7 TJm +(6278 6341) 39.3166 Tj +17.4613 -493.6489 Td +(6075 6116 6138 6162) 83.0018 Tj +-6520.6 TJm (ltr 0429) 34.9481 Tj -17.4609 -427.2 Td -(6027 6069 6091 6115) 83.0018 Tj --8527.18 TJm -(0429 0431 1697) 61.1592 Tj -0 -436.693 Td -(KEY_LF 6023) 48.0537 Tj --12540.4 TJm -(MAXARGS 6763) 52.4222 Tj -17.4609 -446.187 Td -(6023 6067 6089 6113) 83.0018 Tj --8527.18 TJm -(6763 6771 6772 7240) 83.0018 Tj -0 -455.68 Td -(KEY_PGDN 6026) 56.7907 Tj --11537.1 TJm -(MAXFILE 3170) 52.4222 Tj -17.4609 -465.173 Td -(6026 6066 6088 6112) 83.0018 Tj --8527.18 TJm -(3170 4165 4166) 61.1592 Tj -0 -474.667 Td -(KEY_PGUP 6025) 56.7907 Tj --11537.1 TJm -(memcmp 5315) 48.0537 Tj -17.4609 -484.16 Td -(6025 6066 6088 6112) 83.0018 Tj --8527.18 TJm -(0321 5315 5543 5588) 83.0018 Tj -0 -493.654 Td -(KEY_RT 6024) 48.0537 Tj --12540.4 TJm -(memmove 5331) 52.4222 Tj Q Q Q @@ -2620,8 +2632,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -2636,210 +2647,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 7) 187.846 Tj -17.4609 -28.4801 Td -(0322 1284 1660 1722) 83.0018 Tj --8527.18 TJm +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 7) 187.8461 Tj +17.4613 -28.4801 Td +(0429 0431 1701) 61.1592 Tj +-11035.5 TJm +(5638) 17.4741 Tj +0 -37.9735 Td +(MAXARGS 6863) 52.4222 Tj +-12038.8 TJm +(mp_search 5556) 61.1592 Tj +17.4613 -47.4664 Td +(6863 6871 6872 7340) 83.0018 Tj +-8527.14 TJm +(5556 5585) 39.3166 Tj +0 -56.9598 Td +(MAXFILE 3170) 52.4222 Tj +-12038.8 TJm +(mp_search1 5537) 65.5277 Tj +17.4613 -66.4531 Td +(3170 4165 4166) 61.1592 Tj +-11035.5 TJm +(5537 5564 5568 5571) 83.0018 Tj +0 -75.9465 Td +(memcmp 5315) 48.0537 Tj +-12540.5 TJm +(NADDRS 3166) 48.0537 Tj +17.4613 -85.4399 Td +(0320 5315 5543 5588) 83.0018 Tj +-8527.14 TJm (3166 3179 3263) 61.1592 Tj -17.4609 -37.9735 Td -(1731 1775 3684 3874) 83.0018 Tj --6520.6 TJm +0 -94.9332 Td +(memmove 5331) 52.4222 Tj +-12038.8 TJm (namecmp 4203) 52.4222 Tj -17.4609 -47.4668 Td -(3989 4121 4171 4328) 83.0018 Tj --8527.18 TJm +17.4613 -104.4266 Td +(0321 1276 1660 1727) 83.0018 Tj +-8527.14 TJm (0244 4203 4228 4765) 83.0018 Tj -17.4609 -56.9602 Td -(4330 5080 5331 6270) 83.0018 Tj +17.4613 -113.9199 Td +(1737 1780 3684 3874) 83.0018 Tj -6520.6 TJm (namei 4389) 43.6851 Tj -0 -66.4535 Td -(memset 5303) 48.0537 Tj --14547 TJm -(0245 1760 4389 4670) 83.0018 Tj -17.4609 -75.9469 Td -(0323 1218 1661 1740) 83.0018 Tj --8527.18 TJm +17.4613 -123.4133 Td +(3989 4121 4171 4328) 83.0018 Tj +-8527.14 TJm +(0245 1765 4389 4670) 83.0018 Tj +17.4613 -132.9067 Td +(4330 5080 5331 6320) 83.0018 Tj +-8527.14 TJm (4865 4935 5018) 61.1592 Tj -17.4609 -85.4403 Td -(1761 2263 3695 3964) 83.0018 Tj --6520.6 TJm -(_namei 4354) 48.0537 Tj -17.4609 -94.9336 Td -(4784 4959 5055 5067) 83.0018 Tj --8527.18 TJm -(4354 4392 4398) 61.1592 Tj -17.4609 -104.427 Td -(5303 6272 6887 6958) 83.0018 Tj --6520.6 TJm +0 -142.4 Td +(memset 5303) 48.0537 Tj +-12540.5 TJm (nameiparent 4396) 69.8962 Tj -17.4609 -113.92 Td -(6969 6985 7006 7019) 83.0018 Tj --8527.18 TJm +17.4613 -151.8934 Td +(0322 1217 1661 1746) 83.0018 Tj +-8527.14 TJm (0246 4396 4681 4760) 83.0018 Tj -0 -123.413 Td -(microdelay 5769) 65.5277 Tj --12540.3 TJm +17.4613 -161.3867 Td +(1766 2263 3695 3964) 83.0018 Tj +-8527.14 TJm (4807) 17.4741 Tj -17.4609 -132.907 Td -(5769 5788) 39.3166 Tj --11537.3 TJm +17.4613 -170.8801 Td +(4784 4959 5055 5067) 83.0018 Tj +-6520.6 TJm (NBUF 0156) 39.3166 Tj -0 -142.4 Td +17.4613 -180.3735 Td +(5303 6322 6987 7058) 83.0018 Tj +-8527.14 TJm +(0156 3529 3553) 61.1592 Tj +17.4613 -189.8668 Td +(7069 7085 7106 7119) 83.0018 Tj +-6520.6 TJm +(NCPU 0153) 39.3166 Tj +0 -199.3602 Td +(microdelay 5781) 65.5277 Tj +-12540.3 TJm +(0153 1568 5512) 61.1592 Tj +17.4613 -208.8535 Td +(5781 5823 5825 5835) 83.0018 Tj +-6520.6 TJm +(NDEV 0158) 39.3166 Tj +0 -218.3469 Td (min 3674) 34.9481 Tj -16052 TJm -(0156 3529 3553) 61.1592 Tj -17.4609 -151.893 Td +(0158 4108 4158 4407) 83.0018 Tj +17.4613 -227.8403 Td (3674 4120 4170) 61.1592 Tj -9028.94 TJm -(NCPU 0153) 39.3166 Tj -0 -161.387 Td +(NDIRECT 3167) 52.4222 Tj +0 -237.3336 Td (mp 5402) 30.5796 Tj -174.613 -161.387 Td -(0153 1221 1559 1576) 83.0018 Tj -17.461 -170.88 Td +174.613 -237.3336 Td +(3166 3167 3170 4015) 83.0018 Tj +17.461 -246.827 Td (5402 5507 5536 5542) 83.0018 Tj --8527.18 TJm -(1611 5512) 39.3166 Tj -17.461 -180.373 Td +-8527.14 TJm +(4023 4058) 39.3166 Tj +17.461 -256.3203 Td (5543 5544 5555 5560) 83.0018 Tj -6520.6 TJm -(NDEV 0158) 39.3166 Tj -17.461 -189.867 Td +(NELEM 0346) 43.6851 Tj +17.461 -265.8137 Td (5564 5565 5568 5569) 83.0018 Tj --8527.18 TJm -(0158 4108 4158 4407) 83.0018 Tj -17.461 -199.36 Td +-8527.14 TJm +(0346 2123 2779 4961) 83.0018 Tj +17.461 -275.3071 Td (5580 5583 5585 5587) 83.0018 Tj -6520.6 TJm -(NDIRECT 3167) 52.4222 Tj -17.461 -208.854 Td -(5594 5604 5610 5642) 83.0018 Tj --8527.18 TJm -(3166 3167 3170 4015) 83.0018 Tj -1e-04 -218.347 Td -(mp_bcpu 5519) 52.4222 Tj --14045.3 TJm -(4023 4058) 39.3166 Tj -17.461 -227.84 Td -(0281 1225 5519) 61.1592 Tj --9028.94 TJm -(NELEM 0347) 43.6851 Tj -1e-04 -237.334 Td -(MPBUS 5452) 43.6851 Tj --15048.7 TJm -(0347 2123 2779 4961) 83.0018 Tj -17.461 -246.827 Td -(5452 5631) 39.3166 Tj --11537.3 TJm (NFILE 0155) 43.6851 Tj -1e-04 -256.32 Td -(mpconf 5413) 48.0537 Tj --14547 TJm +17.461 -284.8004 Td +(5594 5604 5610 5642) 83.0018 Tj +-8527.14 TJm (0155 4409 4424) 61.1592 Tj -17.461 -265.813 Td -(5413 5579 5582 5587) 83.0018 Tj --6520.6 TJm +-0.0003 -294.2938 Td +(MPBUS 5452) 43.6851 Tj +-13042.1 TJm (NINDIRECT 3169) 61.1592 Tj -17.461 -275.307 Td -(5605) 17.4741 Tj --16052.2 TJm +17.461 -303.7871 Td +(5452 5631) 39.3166 Tj +-13543.8 TJm (3169 3170 4025 4068) 83.0018 Tj -1e-04 -284.8 Td -(mp_config 5580) 61.1592 Tj --11035.4 TJm +-0.0003 -313.2805 Td +(mpconf 5413) 48.0537 Tj +-12540.5 TJm (NINODE 0157) 48.0537 Tj -17.461 -294.293 Td -(5580 5610) 39.3166 Tj --13543.8 TJm +17.461 -322.7739 Td +(5413 5579 5582 5587) 83.0018 Tj +-8527.14 TJm (0157 3785 3811) 61.1592 Tj -1e-04 -303.787 Td -(mp_init 5601) 52.4222 Tj --12038.8 TJm -(NO 6006) 30.5796 Tj -17.461 -313.28 Td -(0282 1224 5601 5637) 83.0018 Tj --8527.18 TJm -(6006 6052 6055 6057) 83.0018 Tj -17.461 -322.773 Td -(5638) 17.4741 Tj --16052.2 TJm -(6058 6059 6060 6062) 83.0018 Tj -1e-04 -332.267 Td +17.461 -332.2672 Td +(5605) 17.4741 Tj +-14045.6 TJm +(NO 6056) 30.5796 Tj +-0.0003 -341.7606 Td (mpioapic 5439) 56.7907 Tj -13543.7 TJm -(6074 6077 6079 6080) 83.0018 Tj -17.461 -341.76 Td +(6056 6102 6105 6107) 83.0018 Tj +17.461 -351.2539 Td (5439 5607 5627 5629) 83.0018 Tj --8527.18 TJm -(6081 6082 6084 6102) 83.0018 Tj -1e-04 -351.254 Td +-8527.14 TJm +(6108 6109 6110 6112) 83.0018 Tj +-0.0003 -360.7473 Td (MPIOINTR 5454) 56.7907 Tj -13543.7 TJm -(6103 6105 6106 6107) 83.0018 Tj -17.461 -360.747 Td +(6124 6127 6129 6130) 83.0018 Tj +17.461 -370.2407 Td (5454 5632) 39.3166 Tj -13543.8 TJm -(6108) 17.4741 Tj -1e-04 -370.24 Td +(6131 6132 6134 6152) 83.0018 Tj +-0.0003 -379.734 Td (MPLINTR 5455) 52.4222 Tj --12038.8 TJm -(NOFILE 0154) 48.0537 Tj -17.461 -379.734 Td +-14045.3 TJm +(6153 6155 6156 6157) 83.0018 Tj +17.461 -389.2274 Td (5455 5633) 39.3166 Tj -13543.8 TJm -(0154 1538 1733 2013) 83.0018 Tj -1e-04 -389.227 Td -(mpmain 1259) 48.0537 Tj --14547 TJm +(6158) 17.4741 Tj +-0.0003 -398.7207 Td +(mpmain 1253) 48.0537 Tj +-12540.5 TJm +(NOFILE 0154) 48.0537 Tj +17.461 -408.2141 Td +(1208 1239 1253 1255) 83.0018 Tj +-8527.14 TJm +(0154 1538 1739 2013) 83.0018 Tj +17.461 -417.7075 Td +(1285) 17.4741 Tj +-16052.1 TJm (4571 4587) 39.3166 Tj -17.461 -398.72 Td -(1259 1292) 39.3166 Tj --11537.3 TJm -(NPROC 0150) 43.6851 Tj -1e-04 -408.213 Td +-0.0003 -427.2008 Td (mpproc 5428) 48.0537 Tj --14547 TJm -(0150 1610 1634 1817) 83.0018 Tj -17.461 -417.707 Td +-12540.5 TJm +(NPROC 0150) 43.6851 Tj +17.461 -436.6942 Td (5428 5606 5619 5624) 83.0018 Tj --8527.18 TJm +-8527.14 TJm +(0150 1610 1633 1821) 83.0018 Tj +-0.0003 -446.1875 Td +(mp_bcpu 5519) 52.4222 Tj +-14045.3 TJm (1957 1981 2029 2062) 83.0018 Tj -1e-04 -427.2 Td -(mp_search 5556) 61.1592 Tj --13042 TJm +17.461 -455.6809 Td +(0277 1220 1257 5519) 83.0018 Tj +-8527.14 TJm (2119) 17.4741 Tj -17.461 -436.693 Td -(5556 5585) 39.3166 Tj --11537.3 TJm +-0.0003 -465.1743 Td +(mp_config 5580) 61.1592 Tj +-11035.5 TJm (NSEGS 1506) 43.6851 Tj -1e-04 -446.187 Td -(mp_search1 5537) 65.5277 Tj --12540.3 TJm -(1506 1570) 39.3166 Tj -17.461 -455.68 Td -(5537 5564 5568 5571) 83.0018 Tj --6520.6 TJm -(nulterminate 7252) 74.2647 Tj -1e-04 -465.173 Td -(MPSTACK 1563) 52.4222 Tj --14045.3 TJm -(7115 7130 7252 7273) 83.0018 Tj -17.461 -474.667 Td -(1228 1229 1291 1563) 83.0018 Tj --8527.18 TJm -(7279 7280 7285 7286) 83.0018 Tj -17.461 -484.16 Td -(1571) 17.4741 Tj --16052.2 TJm -(7291) 17.4741 Tj -1e-04 -493.654 Td -(NADDRS 3166) 48.0537 Tj --12540.4 TJm -(NUMLOCK 6013) 52.4222 Tj +17.461 -474.6672 Td +(5580 5610) 39.3166 Tj +-13543.8 TJm +(1506 1562) 39.3166 Tj +-0.0003 -484.1606 Td +(mp_init 5601) 52.4222 Tj +-12038.8 TJm +(nulterminate 7352) 74.2647 Tj +17.461 -493.654 Td +(0278 1219 5601 5637) 83.0018 Tj +-8527.14 TJm +(7215 7230 7352 7373) 83.0018 Tj Q Q q @@ -2853,210 +2864,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm -0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 8) 187.846 Tj -17.4609 -28.4801 Td -(6013 6046) 39.3166 Tj --13543.9 TJm -(7201 7206 7225) 61.1592 Tj -0 -37.9735 Td -(O_CREATE 3003) 56.7907 Tj --11537.1 TJm -(parsecmd 7118) 56.7907 Tj -17.4609 -47.4668 Td -(3003 4861 7178 7181) 83.0018 Tj --8527.18 TJm -(6802 6917 7118) 61.1592 Tj -0 -56.9602 Td -(O_RDONLY 3000) 56.7907 Tj --11537.1 TJm -(parseexec 7217) 61.1592 Tj -17.4609 -66.4535 Td -(3000 7175) 39.3166 Tj --13543.9 TJm -(7114 7155 7217) 61.1592 Tj -0 -75.9469 Td -(O_RDWR 3002) 48.0537 Tj --12540.4 TJm -(parseline 7135) 61.1592 Tj -17.4609 -85.4403 Td -(3002 4868 4886 6664) 83.0018 Tj --8527.18 TJm -(7112 7124 7135 7146) 83.0018 Tj -17.4609 -94.9336 Td -(6666 6907) 39.3166 Tj --13543.9 TJm -(7208) 17.4741 Tj -0 -104.427 Td -(outb 0372) 39.3166 Tj --13543.8 TJm -(parsepipe 7151) 61.1592 Tj -17.4609 -113.92 Td -(0372 0933 0941 1164) 83.0018 Tj --8527.18 TJm -(7113 7139 7151 7158) 83.0018 Tj -17.4609 -123.414 Td -(1165 1166 1167 1168) 83.0018 Tj +[0 -0.9679 1 0 564.72 392.865] Tm +0 0 Td +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 8) 187.8461 Tj +17.4613 -28.4801 Td +(7379 7380 7385 7386) 83.0018 Tj +-8527.14 TJm +(6901 6920 6953 7032) 83.0018 Tj +17.4613 -37.9735 Td +(7391) 17.4741 Tj +-16052.1 TJm +(7045 7228 7272 7306) 83.0018 Tj +0 -47.4664 Td +(NUMLOCK 6063) 52.4222 Tj +-14045.3 TJm +(7310 7336 7341) 61.1592 Tj +17.4613 -56.9598 Td +(6063 6096) 39.3166 Tj +-11537.3 TJm +(parseblock 7301) 65.5277 Tj +0 -66.4531 Td +(outb 0371) 39.3166 Tj +-15550.3 TJm +(7301 7306 7325) 61.1592 Tj +17.4613 -75.9465 Td +(0371 0933 0941 1164) 83.0018 Tj -6520.6 TJm -(parseredirs 7164) 69.8962 Tj -17.4609 -132.907 Td +(parsecmd 7218) 56.7907 Tj +17.4613 -85.4399 Td +(1165 1166 1167 1168) 83.0018 Tj +-8527.14 TJm +(6902 7025 7218) 61.1592 Tj +17.4613 -94.9332 Td (1169 3361 3370 3381) 83.0018 Tj --8527.18 TJm -(7164 7212 7231 7242) 83.0018 Tj -17.4609 -142.4 Td -(3382 3383 3384 3385) 83.0018 Tj -6520.6 TJm -(PCINT 5675) 43.6851 Tj -17.4609 -151.894 Td +(parseexec 7317) 61.1592 Tj +17.4613 -104.4266 Td +(3382 3383 3384 3385) 83.0018 Tj +-8527.14 TJm +(7214 7255 7317) 61.1592 Tj +17.4613 -113.9199 Td (3386 3388 3391 5645) 83.0018 Tj --8527.18 TJm -(5675 5727) 39.3166 Tj -17.4609 -161.387 Td -(5646 5920 5921 5935) 83.0018 Tj -6520.6 TJm -(peek 7101) 39.3166 Tj -17.4609 -170.88 Td -(5936 5944 5947 5952) 83.0018 Tj --8527.18 TJm -(7101 7125 7140 7144) 83.0018 Tj -17.4609 -180.374 Td -(5962 5965 5966 5967) 83.0018 Tj --8527.18 TJm -(7156 7169 7205 7209) 83.0018 Tj -17.4609 -189.867 Td -(5970 5976 5977 5979) 83.0018 Tj --8527.18 TJm -(7224 7232) 39.3166 Tj -17.4609 -199.361 Td -(5980 6236 6237 6238) 83.0018 Tj +(parseline 7235) 61.1592 Tj +17.4613 -123.4133 Td +(5646 5813 5814 5970) 83.0018 Tj +-8527.14 TJm +(7212 7224 7235 7246) 83.0018 Tj +17.4613 -132.9067 Td +(5971 5985 5986 5994) 83.0018 Tj +-8527.14 TJm +(7308) 17.4741 Tj +17.4613 -142.4 Td +(5997 6002 6012 6015) 83.0018 Tj -6520.6 TJm -(pic_enable 5925) 65.5277 Tj -17.4609 -208.854 Td -(6256 6258 6275 6276) 83.0018 Tj --8527.18 TJm -(0286 3356 5925 6510) 83.0018 Tj -17.4609 -218.347 Td -(6277 6278 6577 6578) 83.0018 Tj --8527.18 TJm -(6580) 17.4741 Tj -17.4609 -227.841 Td -(6579) 17.4741 Tj --14045.6 TJm -(pic_init 5932) 56.7907 Tj -0 -237.334 Td -(outsl 0384) 43.6851 Tj --15048.7 TJm -(0287 1236 5932) 61.1592 Tj -17.4609 -246.827 Td -(0384 3389) 39.3166 Tj --11537.3 TJm -(pic_setmask 5917) 69.8962 Tj -0 -256.321 Td -(outw 0378) 39.3166 Tj +(parsepipe 7251) 61.1592 Tj +17.4613 -151.8934 Td +(6016 6017 6020 6026) 83.0018 Tj +-8527.14 TJm +(7213 7239 7251 7258) 83.0018 Tj +17.4613 -161.3867 Td +(6027 6029 6030 6286) 83.0018 Tj +-6520.6 TJm +(parseredirs 7264) 69.8962 Tj +17.4613 -170.8801 Td +(6287 6288 6306 6308) 83.0018 Tj +-8527.14 TJm +(7264 7312 7331 7342) 83.0018 Tj +17.4613 -180.3735 Td +(6325 6326 6327 6328) 83.0018 Tj +-6520.6 TJm +(PCINT 5678) 43.6851 Tj +17.4613 -189.8668 Td +(6627 6628 6629) 61.1592 Tj +-11035.5 TJm +(5678 5724) 39.3166 Tj +0 -199.3602 Td +(outsl 0383) 43.6851 Tj +-13042.1 TJm +(peek 7201) 39.3166 Tj +17.4613 -208.8535 Td +(0383 3389) 39.3166 Tj +-13543.8 TJm +(7201 7225 7240 7244) 83.0018 Tj +0 -218.3469 Td +(outw 0377) 39.3166 Tj -15550.3 TJm -(5917 5927 5983) 61.1592 Tj -17.4609 -265.814 Td -(0378 1144 1145) 61.1592 Tj --9028.94 TJm -(pinit 1619) 43.6851 Tj -0 -275.307 Td -(O_WRONLY 3001) 56.7907 Tj +(7256 7269 7305 7309) 83.0018 Tj +17.4613 -227.8403 Td +(0377 1143 1144) 61.1592 Tj +-11035.5 TJm +(7324 7332) 39.3166 Tj +0 -237.3336 Td +(O_CREATE 3003) 56.7907 Tj +-11537.1 TJm +(pic_enable 5975) 65.5277 Tj +17.4613 -246.827 Td +(3003 4861 7278 7281) 83.0018 Tj +-8527.14 TJm +(0282 3356 5975 6560) 83.0018 Tj +0 -256.3203 Td +(O_RDONLY 3000) 56.7907 Tj -13543.7 TJm -(0300 1234 1619) 61.1592 Tj -17.4609 -284.8 Td -(3001 4868 4885 4886) 83.0018 Tj +(6630) 17.4741 Tj +17.4613 -265.8137 Td +(3000 7275) 39.3166 Tj +-11537.3 TJm +(pic_init 5982) 56.7907 Tj +0 -275.3071 Td +(O_RDWR 3002) 48.0537 Tj +-14547 TJm +(0283 1225 5982) 61.1592 Tj +17.4613 -284.8004 Td +(3002 4868 4886 6764) 83.0018 Tj -6520.6 TJm +(pic_setmask 5967) 69.8962 Tj +17.4613 -294.2938 Td +(6766 7007) 39.3166 Tj +-13543.8 TJm +(5967 5977 6033) 61.1592 Tj +0 -303.7871 Td +(O_WRONLY 3001) 56.7907 Tj +-11537.1 TJm +(pinit 1618) 43.6851 Tj +17.4613 -313.2805 Td +(3001 4868 4885 4886) 83.0018 Tj +-8527.14 TJm +(0297 1223 1618) 61.1592 Tj +17.4613 -322.7739 Td +(7278 7281) 39.3166 Tj +-11537.3 TJm (pipe 5160) 39.3166 Tj -17.4609 -294.294 Td -(7178 7181) 39.3166 Tj --13543.9 TJm -(0204 0291 0292 0293) 83.0018 Tj -0 -303.787 Td +0 -332.2668 Td (PAGE 0151) 39.3166 Tj -15550.3 TJm +(0204 0287 0288 0289) 83.0018 Tj +17.4613 -341.7602 Td +(0151 0152 1763 2233) 83.0018 Tj +-8527.14 TJm (3105 4469 4509 4529) 83.0018 Tj -17.4609 -313.281 Td -(0151 0152 1758 2233) 83.0018 Tj --8527.18 TJm -(5160 5172 5178 5184) 83.0018 Tj -17.4609 -322.774 Td +17.4613 -351.2536 Td (2235 2236 2259 2309) 83.0018 Tj --8527.18 TJm -(5188 5192 5215 5251) 83.0018 Tj -17.4609 -332.267 Td +-8527.14 TJm +(5160 5172 5178 5184) 83.0018 Tj +17.4613 -360.7469 Td (5049 5051 5178 5202) 83.0018 Tj --8527.18 TJm -(5274 6713 6852 6853) 83.0018 Tj -17.4609 -341.761 Td +-8527.14 TJm +(5188 5192 5215 5251) 83.0018 Tj +17.4613 -370.2403 Td (5228) 17.4741 Tj --14045.6 TJm +-16052.1 TJm +(5273 6813 6952 6953) 83.0018 Tj +0 -379.7336 Td +(panic 6565 7032) 65.5277 Tj +-10533.8 TJm (pipealloc 5170) 61.1592 Tj -0 -351.254 Td -(panic 6515 6924) 65.5277 Tj --12540.3 TJm -(0290 4984 5170) 61.1592 Tj -17.4609 -360.747 Td -(0219 1428 1455 1856) 83.0018 Tj +17.4613 -389.227 Td +(0219 1379 1405 1469) 83.0018 Tj +-8527.14 TJm +(0286 4984 5170) 61.1592 Tj +17.4613 -398.7204 Td +(1471 1856 1858 1860) 83.0018 Tj -6520.6 TJm (pipeclose 5215) 61.1592 Tj -17.4609 -370.241 Td -(1858 1860 1906 1909) 83.0018 Tj --8527.18 TJm -(0291 4469 5215) 61.1592 Tj -17.4609 -379.734 Td -(2010 2041 2260 2271) 83.0018 Tj +17.4613 -408.2137 Td +(1862 1906 1909 2010) 83.0018 Tj +-8527.14 TJm +(0287 4469 5215) 61.1592 Tj +17.4613 -417.7071 Td +(2041 2260 2271 2310) 83.0018 Tj -6520.6 TJm -(pipecmd 6784 6980) 74.2647 Tj -17.4609 -389.227 Td -(2310 2578 3378 3459) 83.0018 Tj --8527.18 TJm -(6784 6812 6851 6980) 83.0018 Tj -17.4609 -398.721 Td -(3461 3463 3596 3617) 83.0018 Tj --8527.18 TJm -(6982 7158 7258 7278) 83.0018 Tj -17.4609 -408.214 Td -(3627 3725 3743 3823) 83.0018 Tj +(pipecmd 6884 7080) 74.2647 Tj +17.4613 -427.2004 Td +(2575 3378 3459 3461) 83.0018 Tj +-8527.14 TJm +(6884 6912 6951 7080) 83.0018 Tj +17.4613 -436.6938 Td +(3463 3596 3617 3627) 83.0018 Tj +-8527.14 TJm +(7082 7258 7358 7378) 83.0018 Tj +17.4613 -446.1872 Td +(3725 3743 3823 3858) 83.0018 Tj -6520.6 TJm -(piperead 5274) 56.7907 Tj -17.4609 -417.707 Td -(3858 3878 3887 3908) 83.0018 Tj --8527.18 TJm -(0292 4509 5274) 61.1592 Tj -17.4609 -427.201 Td -(3972 4047 4219 4267) 83.0018 Tj +(piperead 5273) 56.7907 Tj +17.4613 -455.6805 Td +(3878 3887 3908 3972) 83.0018 Tj +-8527.14 TJm +(0288 4509 5273) 61.1592 Tj +17.4613 -465.1739 Td +(4047 4219 4267 4275) 83.0018 Tj -6520.6 TJm (PIPESIZE 5158) 56.7907 Tj -17.4609 -436.694 Td -(4275 4442 4458 4473) 83.0018 Tj --8527.18 TJm -(5158 5166 5257 5266) 83.0018 Tj -17.4609 -446.188 Td -(4517 4537 4709 4777) 83.0018 Tj --8527.18 TJm -(5290) 17.4741 Tj -17.4609 -455.681 Td -(4786 4843 5638 6515) 83.0018 Tj +17.4613 -474.6672 Td +(4442 4458 4473 4517) 83.0018 Tj +-8527.14 TJm +(5158 5166 5257 5265) 83.0018 Tj +17.4613 -484.1606 Td +(4537 4709 4777 4786) 83.0018 Tj +-8527.14 TJm +(5288) 17.4741 Tj +17.4613 -493.654 Td +(4843 5638 6565 6572) 83.0018 Tj -6520.6 TJm (pipewrite 5251) 61.1592 Tj -17.4609 -465.174 Td -(6522 6801 6820 6853) 83.0018 Tj --8527.18 TJm -(0293 4529 5251) 61.1592 Tj -17.4609 -474.668 Td -(6924 6937 7128 7172) 83.0018 Tj --6520.6 TJm -(printint 6301) 56.7907 Tj -17.4609 -484.161 Td -(7206 7210 7236 7241) 83.0018 Tj --8527.18 TJm -(6301 6353 6357) 61.1592 Tj -0 -493.654 Td -(parseblock 7201) 65.5277 Tj --10533.8 TJm -(proc 1529) 39.3166 Tj Q Q Q @@ -3084,8 +3095,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -3100,210 +3110,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm -0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 9) 187.846 Tj -17.4609 -28.4801 Td -(0205 0296 0303 0333) 83.0018 Tj --8527.18 TJm -(1643 1836 1872 1881) 83.0018 Tj -17.4609 -37.9735 Td -(0334 1204 1407 1529) 83.0018 Tj --8527.18 TJm +[0 -0.9679 1 0 564.72 738.865] Tm +0 0 Td +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 9) 187.8461 Tj +17.4613 -28.4801 Td +(0289 4529 5251) 61.1592 Tj +-11035.5 TJm +(5758) 17.4741 Tj +0 -37.9735 Td +(popcli 1466) 48.0537 Tj +-12540.5 TJm +(REDIR 6858) 43.6851 Tj +17.4613 -47.4664 Td +(0317 1417 1466 1469) 83.0018 Tj +-8527.14 TJm +(6858 6930 7070 7371) 83.0018 Tj +17.4613 -56.9598 Td +(1471 1702 1795) 61.1592 Tj +-9028.94 TJm +(redircmd 6875 7064) 78.6333 Tj +0 -66.4531 Td +(printint 6351) 56.7907 Tj +-13543.7 TJm +(6875 6913 6931 7064) 83.0018 Tj +17.4613 -75.9465 Td +(6351 6403 6407) 61.1592 Tj +-11035.5 TJm +(7066 7275 7278 7281) 83.0018 Tj +0 -85.4399 Td +(proc 1529) 39.3166 Tj +-15550.3 TJm +(7359 7372) 39.3166 Tj +17.4613 -94.9332 Td +(0205 0292 0293 0300) 83.0018 Tj +-6520.6 TJm +(REG_ID 5860) 48.0537 Tj +17.4613 -104.4266 Td +(0332 0333 1204 1357) 83.0018 Tj +-8527.14 TJm +(5860 5910) 39.3166 Tj +17.4613 -113.9199 Td +(1529 1535 1559 1605) 83.0018 Tj +-6520.6 TJm +(REG_TABLE 5862) 61.1592 Tj +17.4613 -123.4133 Td +(1610 1611 1626 1630) 83.0018 Tj +-8527.14 TJm +(5862 5917 5918 5931) 83.0018 Tj +17.4613 -132.9067 Td +(1634 1672 1708 1709) 83.0018 Tj +-8527.14 TJm +(5932) 17.4741 Tj +17.4613 -142.4 Td +(1712 1759 1788 1791) 83.0018 Tj +-6520.6 TJm +(REG_VER 5861) 52.4222 Tj +17.4613 -151.8934 Td +(1810 1822 1955 1957) 83.0018 Tj +-8527.14 TJm +(5861 5909) 39.3166 Tj +17.4613 -161.3867 Td +(1978 1981 2006 2029) 83.0018 Tj +-6520.6 TJm +(release 1402) 52.4222 Tj +17.4613 -170.8801 Td +(2055 2063 2115 2120) 83.0018 Tj +-8527.14 TJm +(0315 1402 1405 1638) 83.0018 Tj +17.4613 -180.3735 Td +(2504 2578 2654 2666) 83.0018 Tj +-8527.14 TJm +(1642 1839 1874 1883) 83.0018 Tj +17.4613 -189.8668 Td +(2678 2804 2810 3306) 83.0018 Tj +-8527.14 TJm (1919 1932 1969 1987) 83.0018 Tj -17.4609 -47.4668 Td -(1535 1559 1605 1610) 83.0018 Tj --8527.18 TJm +17.4613 -199.3602 Td +(3667 4555 5003 5154) 83.0018 Tj +-8527.14 TJm (1991 2076 2085 2293) 83.0018 Tj -17.4609 -56.9602 Td -(1611 1612 1627 1631) 83.0018 Tj --8527.18 TJm -(2316 2322 2326 2556) 83.0018 Tj -17.4609 -66.4535 Td -(1635 1672 1703 1704) 83.0018 Tj --8527.18 TJm -(2875 2880 3409 3426) 83.0018 Tj -17.4609 -75.9469 Td -(1707 1754 1810 1818) 83.0018 Tj --8527.18 TJm +17.4613 -208.8535 Td +(5510 5606 5619 5620) 83.0018 Tj +-8527.14 TJm +(2316 2322 2326 2552) 83.0018 Tj +17.4613 -218.3469 Td +(5621 6261) 39.3166 Tj +-13543.8 TJm +(2874 2879 3408 3425) 83.0018 Tj +0 -227.8403 Td +(procdump 2104) 56.7907 Tj +-13543.7 TJm (3482 3581 3592 3641) 83.0018 Tj -17.4609 -85.4403 Td -(1955 1957 1978 1981) 83.0018 Tj --8527.18 TJm +17.4613 -237.3336 Td +(0298 2104 6470) 61.1592 Tj +-11035.5 TJm (3814 3830 3842 3864) 83.0018 Tj -17.4609 -94.9336 Td -(2006 2029 2055 2063) 83.0018 Tj --8527.18 TJm +0 -246.827 Td +(proc_table_lock 1608) 87.3703 Tj +-10032 TJm (3892 3910 3919 4428) 83.0018 Tj -17.4609 -104.427 Td -(2115 2120 2504 2581) 83.0018 Tj --8527.18 TJm +17.4613 -256.3203 Td +(1608 1620 1632 1638) 83.0018 Tj +-8527.14 TJm (4432 4444 4460 4466) 83.0018 Tj -17.4609 -113.92 Td -(2654 2666 2678 2804) 83.0018 Tj --8527.18 TJm -(5225 5259 5269 5281) 83.0018 Tj -17.4609 -123.414 Td -(2809 3306 3667 4555) 83.0018 Tj --8527.18 TJm -(5293 6381 6393 6447) 83.0018 Tj -17.4609 -132.907 Td -(5003 5154 5510 5606) 83.0018 Tj --8527.18 TJm -(6462 6484) 39.3166 Tj -17.4609 -142.4 Td -(5619 5620 5621 6211) 83.0018 Tj +17.4613 -265.8137 Td +(1642 1820 1839 1859) 83.0018 Tj +-8527.14 TJm +(5225 5259 5268 5280) 83.0018 Tj +17.4613 -275.3071 Td +(1860 1871 1874 1883) 83.0018 Tj +-8527.14 TJm +(5291 6431 6443 6497) 83.0018 Tj +17.4613 -284.8004 Td +(1917 1918 1931 1932) 83.0018 Tj +-8527.14 TJm +(6512 6532) 39.3166 Tj +17.4613 -294.2938 Td +(1967 1969 1980 1987) 83.0018 Tj -6520.6 TJm (ROOTDEV 0159) 52.4222 Tj -0 -151.894 Td -(procdump 2104) 56.7907 Tj --13543.7 TJm +17.4613 -303.7871 Td +(1991 2023 2058 2076) 83.0018 Tj +-8527.14 TJm (0159 4359) 39.3166 Tj -17.4609 -161.387 Td -(0301 2104 6420) 61.1592 Tj --9028.94 TJm +17.4613 -313.2805 Td +(2085 2090) 39.3166 Tj +-11537.3 TJm (run 2214) 34.9481 Tj -0 -170.88 Td -(proc_table_lock 1608) 87.3703 Tj --10032 TJm +0 -322.7739 Td +(proghdr 0824) 52.4222 Tj +-14045.3 TJm (2111 2214 2215 2218) 83.0018 Tj -17.4609 -180.374 Td -(1608 1621 1633 1639) 83.0018 Tj --8527.18 TJm +17.4613 -332.2668 Td +(0824 1119 1132 5016) 83.0018 Tj +-8527.14 TJm (2257 2266 2267 2269) 83.0018 Tj -17.4609 -189.867 Td -(1643 1815 1836 1857) 83.0018 Tj --8527.18 TJm +0 -341.7602 Td +(pushcli 1455) 52.4222 Tj +-14045.3 TJm (2307) 17.4741 Tj -17.4609 -199.361 Td -(1858 1869 1872 1881) 83.0018 Tj +17.4613 -351.2536 Td +(0316 1377 1455 1676) 83.0018 Tj -6520.6 TJm -(runcmd 6806) 48.0537 Tj -17.4609 -208.854 Td -(1917 1918 1931 1932) 83.0018 Tj --8527.18 TJm -(6806 6820 6837 6843) 83.0018 Tj -17.4609 -218.347 Td -(1967 1969 1980 1987) 83.0018 Tj --8527.18 TJm -(6845 6859 6866 6877) 83.0018 Tj -17.4609 -227.841 Td -(1991 2023 2058 2076) 83.0018 Tj --8527.18 TJm -(6917) 17.4741 Tj -17.4609 -237.334 Td -(2085 2090) 39.3166 Tj --11537.3 TJm -(RUNNING 1526) 52.4222 Tj -0 -246.827 Td -(proghdr 0824) 52.4222 Tj --14045.3 TJm -(1526 1827 1855 2111) 83.0018 Tj -17.4609 -256.321 Td -(0824 1120 1133 5016) 83.0018 Tj --8527.18 TJm -(2595) 17.4741 Tj -0 -265.814 Td -(readi 4102) 43.6851 Tj --13042.1 TJm -(safestrcpy 5375) 65.5277 Tj -17.4609 -275.307 Td +(runcmd 6906) 48.0537 Tj +17.4613 -360.7469 Td +(1793) 17.4741 Tj +-16052.1 TJm +(6906 6920 6937 6943) 83.0018 Tj +0 -370.2403 Td +(readi 4102) 43.6851 Tj +-15048.7 TJm +(6945 6959 6966 6977) 83.0018 Tj +17.4613 -379.7336 Td (0247 4102 4266 4512) 83.0018 Tj --8527.18 TJm -(0324 1776 5097 5375) 83.0018 Tj -17.4609 -284.8 Td +-8527.14 TJm +(7025) 17.4741 Tj +17.4613 -389.227 Td (4708 4709 5027 5032) 83.0018 Tj -6520.6 TJm -(sched 1853) 43.6851 Tj -17.4609 -294.294 Td +(RUNNING 1526) 52.4222 Tj +17.4613 -398.7204 Td (5059 5065) 39.3166 Tj -13543.8 TJm -(1853 1856 1858 1860) 83.0018 Tj -0 -303.787 Td +(1526 1831 1857 2111) 83.0018 Tj +0 -408.2137 Td (readsb 3679) 48.0537 Tj -14547 TJm -(1871 1925 2040) 61.1592 Tj -17.4609 -313.281 Td +(2591) 17.4741 Tj +17.4613 -417.7071 Td (3679 3711 3738 3959) 83.0018 Tj -6520.6 TJm -(scheduler 1808) 61.1592 Tj -0 -322.774 Td +(safestrcpy 5375) 65.5277 Tj +0 -427.2004 Td (readsect 1160) 56.7907 Tj -13543.7 TJm -(0302 1254 1272 1808) 83.0018 Tj -17.4609 -332.267 Td -(1160 1196) 39.3166 Tj +(0323 1781 5097 5375) 83.0018 Tj +17.4613 -436.6938 Td +(1160 1195) 39.3166 Tj -11537.3 TJm -(SCROLLLOCK 6014) 65.5277 Tj -0 -341.761 Td +(sched 1853) 43.6851 Tj +0 -446.1872 Td (readseg 1179) 52.4222 Tj -14045.3 TJm -(6014 6047) 39.3166 Tj -17.4609 -351.254 Td -(1114 1126 1136 1179) 83.0018 Tj --6520.6 TJm -(SECTSIZE 1112) 56.7907 Tj -0 -360.747 Td -(REDIR 6758) 43.6851 Tj --15048.7 TJm -(1112 1126 1173 1187) 83.0018 Tj -17.4609 -370.241 Td -(6758 6830 6970 7271) 83.0018 Tj --8527.18 TJm -(1190 1195) 39.3166 Tj -0 -379.734 Td -(redircmd 6775 6964) 78.6333 Tj --9028.76 TJm -(SEG 0654) 34.9481 Tj -17.4609 -389.227 Td -(6775 6813 6831 6964) 83.0018 Tj --8527.18 TJm -(0654 1684 1685 1689) 83.0018 Tj -17.4609 -398.721 Td -(6966 7175 7178 7181) 83.0018 Tj --8527.18 TJm -(1690) 17.4741 Tj -17.4609 -408.214 Td -(7259 7272) 39.3166 Tj --11537.3 TJm -(SEG16 0659) 43.6851 Tj -0 -417.707 Td -(REG_ID 5810) 48.0537 Tj --14547 TJm -(0659 1686) 39.3166 Tj -17.4609 -427.201 Td -(5810 5860) 39.3166 Tj --11537.3 TJm -(SEG_ASM 0558) 52.4222 Tj -0 -436.694 Td -(REG_TABLE 5812) 61.1592 Tj --13042 TJm -(0558 0985 0986 1081) 83.0018 Tj -17.4609 -446.188 Td -(5812 5867 5868 5881) 83.0018 Tj --8527.18 TJm -(1082) 17.4741 Tj -17.4609 -455.681 Td -(5882) 17.4741 Tj --14045.6 TJm -(segdesc 0627) 52.4222 Tj -0 -465.174 Td -(REG_VER 5811) 52.4222 Tj --14045.3 TJm -(0400 0403 0627 0651) 83.0018 Tj -17.4609 -474.668 Td -(5811 5859) 39.3166 Tj +(1853 1856 1858 1860) 83.0018 Tj +17.4613 -455.6805 Td +(1113 1125 1135 1179) 83.0018 Tj +-8527.14 TJm +(1862 1873 1925 2040) 83.0018 Tj +0 -465.1739 Td +(read_ebp 0392) 56.7907 Tj +-11537.1 TJm +(scheduler 1808) 61.1592 Tj +17.4613 -474.6668 Td +(0392 5762) 39.3166 Tj -13543.8 TJm -(0654 0659 1570) 61.1592 Tj -0 -484.161 Td -(release 1452) 52.4222 Tj --12038.8 TJm -(SEG_KCODE 1501) 61.1592 Tj -17.4609 -493.654 Td -(0318 1452 1455 1639) 83.0018 Tj --8527.18 TJm -(1501 1684 2521 2522) 83.0018 Tj +(0299 1263 1808) 61.1592 Tj +0 -484.1602 Td +(read_eflags 0435) 69.8962 Tj +-10032.1 TJm +(SCROLLLOCK 6064) 65.5277 Tj +17.4613 -493.6536 Td +(0435 1459 1468 1855) 83.0018 Tj +-8527.14 TJm +(6064 6097) 39.3166 Tj Q Q q @@ -3317,210 +3327,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 10) 192.215 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 10) 192.2146 Tj 0 -28.4801 Td +(SECTSIZE 1111) 56.7907 Tj +-13543.7 TJm +(5156 5165 6258 6270) 83.0018 Tj +17.4613 -37.9735 Td +(1111 1125 1173 1186) 83.0018 Tj +-8527.14 TJm +(6452) 17.4741 Tj +17.4613 -47.4664 Td +(1189 1194) 39.3166 Tj +-11537.3 TJm +(start 0912 1026 6707) 87.3703 Tj +0 -56.9598 Td +(SEG 0654) 34.9481 Tj +-16052 TJm +(0911 0912 0974 1025) 83.0018 Tj +17.4613 -66.4531 Td +(0654 1685 1686 1690) 83.0018 Tj +-8527.14 TJm +(1026 1073 1074 2229) 83.0018 Tj +17.4613 -75.9461 Td +(1691) 17.4741 Tj +-16052.1 TJm +(2232 2233 2236 6706) 83.0018 Tj +0 -85.4395 Td +(SEG16 0659) 43.6851 Tj +-15048.7 TJm +(6707) 17.4741 Tj +17.4613 -94.9328 Td +(0659 1687) 39.3166 Tj +-11537.3 TJm +(stat 3050) 39.3166 Tj +0 -104.4262 Td +(segdesc 0627) 52.4222 Tj +-14045.3 TJm +(0207 0230 0248 3050) 83.0018 Tj +17.4613 -113.9196 Td +(0400 0403 0627 0651) 83.0018 Tj +-8527.14 TJm +(3665 4082 4478 4553) 83.0018 Tj +17.4613 -123.4125 Td +(0654 0659 1562) 61.1592 Tj +-11035.5 TJm +(4654 6753) 39.3166 Tj +0 -132.9059 Td +(SEG_ASM 0558) 52.4222 Tj +-12038.8 TJm +(stati 4082) 43.6851 Tj +17.4613 -142.3992 Td +(0558 0985 0986 1081) 83.0018 Tj +-8527.14 TJm +(0248 4082 4482) 61.1592 Tj +17.4613 -151.8922 Td +(1082) 17.4741 Tj +-14045.6 TJm +(STA_R 0567 0671) 65.5277 Tj +0 -161.3856 Td +(SEG_KCODE 1501) 61.1592 Tj +-13042 TJm +(0567 0671 0985 1081) 83.0018 Tj +17.4613 -170.8789 Td +(1501 1685 2521 2522) 83.0018 Tj +-8527.14 TJm +(1685 1690) 39.3166 Tj +0 -180.3723 Td (SEG_KDATA 1502) 61.1592 Tj --11035.4 TJm +-11035.5 TJm (STA_W 0566 0670) 65.5277 Tj -17.4609 -37.9735 Td -(1502 1677 1685) 61.1592 Tj +17.4613 -189.8653 Td +(1502 1678 1686) 61.1592 Tj -11035.5 TJm (0566 0670 0986 1082) 83.0018 Tj -0 -47.4668 Td +0 -199.3586 Td (SEG_NULL 0651) 56.7907 Tj -13543.7 TJm -(1685 1690) 39.3166 Tj -17.4609 -56.9602 Td -(0651 1683 1692 1693) 83.0018 Tj +(1686 1691) 39.3166 Tj +17.4613 -208.852 Td +(0651 1684 1693 1694) 83.0018 Tj -6520.6 TJm (STA_X 0563 0667) 65.5277 Tj -0 -66.4535 Td +0 -218.3453 Td (SEG_NULLASM 0554) 69.8962 Tj -12038.7 TJm (0563 0667 0985 1081) 83.0018 Tj -17.4609 -75.9469 Td +17.4613 -227.8387 Td (0554 0984 1080) 61.1592 Tj -11035.5 TJm -(1684 1689) 39.3166 Tj -0 -85.4403 Td +(1685 1690) 39.3166 Tj +0 -237.3321 Td (SEG_TSS 1505) 52.4222 Tj -12038.8 TJm -(sti 0488) 34.9481 Tj -17.4609 -94.9336 Td -(1505 1686 1687 1697) 83.0018 Tj --8527.18 TJm -(0488 0490 1252 1270) 83.0018 Tj -0 -104.427 Td +(sti 0470) 34.9481 Tj +17.4613 -246.8254 Td +(1505 1687 1688 1701) 83.0018 Tj +-8527.14 TJm +(0470 0472 1473 1817) 83.0018 Tj +0 -256.3188 Td (SEG_UCODE 1503) 61.1592 Tj --13042 TJm -(1466) 17.4741 Tj -17.4609 -113.92 Td -(1503 1689 1692 1762) 83.0018 Tj --6520.6 TJm +-11035.5 TJm (strlen 5389) 48.0537 Tj -0 -123.413 Td +17.4613 -265.8121 Td +(1503 1690 1693 1767) 83.0018 Tj +-8527.14 TJm +(0324 5044 5078 5389) 83.0018 Tj +0 -275.3055 Td (SEG_UDATA 1504) 61.1592 Tj -13042 TJm -(0325 5044 5078 5389) 83.0018 Tj -17.4609 -132.907 Td -(1504 1690 1693 1763) 83.0018 Tj --8527.18 TJm -(7123) 17.4741 Tj -0 -142.4 Td -(SETGATE 0771) 52.4222 Tj --12038.8 TJm +(7019 7223) 39.3166 Tj +17.4613 -284.7989 Td +(1504 1691 1694 1768) 83.0018 Tj +-6520.6 TJm (strncmp 5351) 52.4222 Tj -17.4609 -151.893 Td +0 -294.2922 Td +(SETGATE 0771) 52.4222 Tj +-14045.3 TJm +(0325 4205 5351) 61.1592 Tj +17.4613 -303.7856 Td (0771 2521 2522) 61.1592 Tj --11035.5 TJm -(0326 4205 5351) 61.1592 Tj -0 -161.387 Td -(setupsegs 1672) 61.1592 Tj --11035.4 TJm +-9028.94 TJm (strncpy 5361) 52.4222 Tj -17.4609 -170.88 Td -(0303 1243 1264 1672) 83.0018 Tj --8527.18 TJm -(0327 4272 5361) 61.1592 Tj -17.4609 -180.373 Td -(1826 1833 2860 5106) 83.0018 Tj +0 -313.2789 Td +(setupsegs 1672) 61.1592 Tj +-13042 TJm +(0326 4272 5361) 61.1592 Tj +17.4613 -322.7723 Td +(0300 1259 1665 1672) 83.0018 Tj -6520.6 TJm (STS_IG32 0685) 56.7907 Tj -0 -189.867 Td -(SHIFT 6008) 43.6851 Tj --15048.7 TJm +17.4613 -332.2653 Td +(1830 1837 5106) 61.1592 Tj +-11035.5 TJm (0685 0777) 39.3166 Tj -17.4609 -199.36 Td -(6008 6036 6037 6185) 83.0018 Tj --6520.6 TJm +0 -341.7586 Td +(SHIFT 6058) 43.6851 Tj +-13042.1 TJm (STS_T32A 0682) 56.7907 Tj -0 -208.854 Td +17.4613 -351.252 Td +(6058 6086 6087 6235) 83.0018 Tj +-8527.14 TJm +(0682 1687) 39.3166 Tj +0 -360.7454 Td (skipelem 4314) 56.7907 Tj --13543.7 TJm -(0682 1686) 39.3166 Tj -17.4609 -218.347 Td -(4314 4363) 39.3166 Tj --11537.3 TJm +-11537.1 TJm (STS_TG32 0686) 56.7907 Tj -0 -227.84 Td -(sleep 1903) 43.6851 Tj --15048.7 TJm +17.4613 -370.2387 Td +(4314 4363) 39.3166 Tj +-13543.8 TJm (0686 0777) 39.3166 Tj -17.4609 -237.334 Td -(0304 1903 1906 1909) 83.0018 Tj --6520.6 TJm -(STUB 6703 6710 6711 6712 6713 6714) 148.529 Tj -17.4609 -246.827 Td -(2090 2109 2878 3480) 83.0018 Tj --8527.18 TJm -(6710 6711 6712 6713) 83.0018 Tj -17.4609 -256.32 Td -(3577 3862 5263 5284) 83.0018 Tj --8527.18 TJm -(6714 6715 6716 6717) 83.0018 Tj -17.4609 -265.814 Td -(6466 6729) 39.3166 Tj --13543.9 TJm -(6718 6719 6720 6721) 83.0018 Tj -0 -275.307 Td +0 -379.7321 Td +(sleep 1903) 43.6851 Tj +-13042.1 TJm +(STUB 6803 6810 6811 6812 6813 6814) 148.5295 Tj +17.4613 -389.2254 Td +(0301 1903 1906 1909) 83.0018 Tj +-8527.14 TJm +(6810 6811 6812 6813) 83.0018 Tj +17.4613 -398.7184 Td +(2090 2109 2877 3480) 83.0018 Tj +-8527.14 TJm +(6814 6815 6816 6817) 83.0018 Tj +17.4613 -408.2114 Td +(3577 3862 5263 5283) 83.0018 Tj +-8527.14 TJm +(6818 6819 6820 6821) 83.0018 Tj +17.4613 -417.7043 Td +(6516 6829) 39.3166 Tj +-13543.8 TJm +(6822 6823 6824 6825) 83.0018 Tj +0 -427.1977 Td (spinlock 1301) 56.7907 Tj -13543.7 TJm -(6722 6723 6724 6725) 83.0018 Tj -17.4609 -284.8 Td -(0206 0304 0314 0316) 83.0018 Tj --8527.18 TJm -(6726 6727 6728 6729) 83.0018 Tj -17.4609 -294.294 Td -(0317 0318 0344 1301) 83.0018 Tj +(6826 6827 6828 6829) 83.0018 Tj +17.4613 -436.6911 Td +(0206 0301 0311 0313) 83.0018 Tj -6520.6 TJm (sum 5525) 34.9481 Tj -17.4609 -303.787 Td -(1408 1413 1425 1452) 83.0018 Tj --8527.18 TJm +17.4613 -446.184 Td +(0314 0315 0343 1301) 83.0018 Tj +-8527.14 TJm (5525 5527 5529 5531) 83.0018 Tj -17.4609 -313.281 Td -(1489 1606 1608 1903) 83.0018 Tj --8527.18 TJm +17.4613 -455.677 Td +(1358 1363 1375 1402) 83.0018 Tj +-8527.14 TJm (5532 5543 5592) 61.1592 Tj -17.4609 -322.774 Td -(2210 2212 2507 2512) 83.0018 Tj +17.4613 -465.17 Td +(1440 1606 1608 1903) 83.0018 Tj -6520.6 TJm (superblock 3160) 65.5277 Tj -17.4609 -332.267 Td -(3309 3324 3526 3530) 83.0018 Tj --8527.18 TJm +17.4613 -474.663 Td +(2210 2212 2507 2512) 83.0018 Tj +-8527.14 TJm (3160 3679 3708 3733) 83.0018 Tj -17.4609 -341.761 Td -(3668 3784 4404 4408) 83.0018 Tj --8527.18 TJm +17.4613 -484.1559 Td +(3309 3324 3526 3530) 83.0018 Tj +-8527.14 TJm (3957) 17.4741 Tj -17.4609 -351.254 Td -(5156 5165 6208 6220) 83.0018 Tj --6520.6 TJm -(SVR 5661) 34.9481 Tj -17.4609 -360.747 Td -(6402) 17.4741 Tj --16052.2 TJm -(5661 5707) 39.3166 Tj -0 -370.241 Td -(STA_R 0567 0671) 65.5277 Tj --10533.8 TJm -(swtch 2156) 43.6851 Tj -17.4609 -379.734 Td -(0567 0671 0985 1081) 83.0018 Tj --8527.18 TJm -(0311 1828 1862 2155) 83.0018 Tj -17.4609 -389.227 Td -(1684 1689) 39.3166 Tj --13543.9 TJm -(2156) 17.4741 Tj -0 -398.721 Td -(start 0912 1025 6607) 87.3703 Tj --8025.43 TJm -(syscall 2774) 52.4222 Tj -17.4609 -408.214 Td -(0911 0912 0974 1024) 83.0018 Tj --8527.18 TJm -(0335 2540 2656 2774) 83.0018 Tj -17.4609 -417.707 Td -(1025 1073 1074 2229) 83.0018 Tj --6520.6 TJm -(SYS_chdir 2616) 61.1592 Tj -17.4609 -427.2 Td -(2232 2233 2236 6606) 83.0018 Tj --8527.18 TJm -(2616 2751) 39.3166 Tj -17.4609 -436.694 Td -(6607) 17.4741 Tj --14045.6 TJm -(SYS_close 2607) 61.1592 Tj -0 -446.187 Td -(stat 3050) 39.3166 Tj --15550.3 TJm -(2607 2752) 39.3166 Tj -17.4609 -455.681 Td -(0207 0230 0248 3050) 83.0018 Tj +17.4613 -493.6489 Td +(3668 3784 4404 4408) 83.0018 Tj -6520.6 TJm -(SYS_dup 2617) 52.4222 Tj -17.4609 -465.174 Td -(3665 4082 4478 4553) 83.0018 Tj --8527.18 TJm -(2617 2753) 39.3166 Tj -17.4609 -474.667 Td -(4654 6653) 39.3166 Tj --11537.3 TJm -(SYS_exec 2609) 56.7907 Tj -0 -484.161 Td -(stati 4082) 43.6851 Tj --15048.7 TJm -(2609 2754 6611) 61.1592 Tj -17.4609 -493.654 Td -(0248 4082 4482) 61.1592 Tj --9028.94 TJm -(SYS_exit 2602) 56.7907 Tj +(SVR 5664) 34.9481 Tj Q Q Q @@ -3548,8 +3558,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -3564,210 +3573,210 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 11) 192.215 Tj -17.4609 -28.4801 Td -(2602 2755 6616) 61.1592 Tj --11035.5 TJm -(2556 2871 2875 2878) 83.0018 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 11) 192.2146 Tj +17.4613 -28.4801 Td +(5664 5707) 39.3166 Tj +-11537.3 TJm +(ticks 2513) 43.6851 Tj 0 -37.9735 Td +(swtch 2156) 43.6851 Tj +-15048.7 TJm +(0341 2513 2550 2551) 83.0018 Tj +17.4613 -47.4664 Td +(0308 1832 1864 2155) 83.0018 Tj +-8527.14 TJm +(2871 2872 2877) 61.1592 Tj +17.4613 -56.9598 Td +(2156) 17.4741 Tj +-14045.6 TJm +(tickslock 2512) 61.1592 Tj +0 -66.4531 Td +(syscall 2774) 52.4222 Tj +-14045.3 TJm +(0343 2512 2524 2549) 83.0018 Tj +17.4613 -75.9465 Td +(0334 2540 2656 2774) 83.0018 Tj +-8527.14 TJm +(2552 2870 2874 2877) 83.0018 Tj +0 -85.4399 Td +(SYS_chdir 2616) 61.1592 Tj +-13042 TJm +(2879) 17.4741 Tj +17.4613 -94.9332 Td +(2616 2751) 39.3166 Tj +-11537.3 TJm +(TICR 5683) 39.3166 Tj +0 -104.4266 Td +(SYS_close 2607) 61.1592 Tj +-13042 TJm +(5683 5715) 39.3166 Tj +17.4613 -113.9199 Td +(2607 2752) 39.3166 Tj +-11537.3 TJm +(TIMER 5675) 43.6851 Tj +0 -123.4133 Td +(SYS_dup 2617) 52.4222 Tj +-14045.3 TJm +(5675 5714) 39.3166 Tj +17.4613 -132.9067 Td +(2617 2753) 39.3166 Tj +-11537.3 TJm +(TIMER_16BIT 6621) 69.8962 Tj +0 -142.4 Td +(SYS_exec 2609) 56.7907 Tj +-13543.7 TJm +(6621 6627) 39.3166 Tj +17.4613 -151.8934 Td +(2609 2754 6711) 61.1592 Tj +-9028.94 TJm +(TIMER_DIV 6616) 61.1592 Tj +0 -161.3867 Td +(SYS_exit 2602) 56.7907 Tj +-13543.7 TJm +(6616 6628 6629) 61.1592 Tj +17.4613 -170.8801 Td +(2602 2755 6716) 61.1592 Tj +-9028.94 TJm +(TIMER_FREQ 6615) 65.5277 Tj +0 -180.3735 Td (SYS_fork 2601) 56.7907 Tj -13543.7 TJm -(2880) 17.4741 Tj -17.4609 -47.4668 Td +(6615 6616) 39.3166 Tj +17.4613 -189.8664 Td (2601 2756) 39.3166 Tj -11537.3 TJm -(TICR 5680) 39.3166 Tj -0 -56.9602 Td +(timer_init 6624) 65.5277 Tj +0 -199.3598 Td (SYS_fstat 2613) 61.1592 Tj -13042 TJm -(5680 5716) 39.3166 Tj -17.4609 -66.4535 Td +(0337 1234 6624) 61.1592 Tj +17.4613 -208.8532 Td (2613 2757) 39.3166 Tj -11537.3 TJm -(TIMER 5672) 43.6851 Tj -0 -75.9469 Td +(TIMER_MODE 6618) 65.5277 Tj +0 -218.3465 Td (SYS_getpid 2618) 65.5277 Tj -12540.3 TJm -(5672 5718) 39.3166 Tj -17.4609 -85.4403 Td +(6618 6627) 39.3166 Tj +17.4613 -227.8399 Td (2618 2758) 39.3166 Tj -11537.3 TJm -(TIMER_16BIT 6571) 69.8962 Tj -0 -94.9336 Td +(TIMER_RATEGEN 6620) 78.6333 Tj +0 -237.3332 Td (SYS_kill 2608) 56.7907 Tj -13543.7 TJm -(6571 6577) 39.3166 Tj -17.4609 -104.427 Td +(6620 6627) 39.3166 Tj +17.4613 -246.8266 Td (2608 2759) 39.3166 Tj -11537.3 TJm -(TIMER_DIV 6566) 61.1592 Tj -0 -113.92 Td +(TIMER_SEL0 6619) 65.5277 Tj +0 -256.32 Td (SYS_link 2614) 56.7907 Tj -13543.7 TJm -(6566 6578 6579) 61.1592 Tj -17.4609 -123.413 Td +(6619 6627) 39.3166 Tj +17.4613 -265.8133 Td (2614 2760) 39.3166 Tj -11537.3 TJm -(TIMER_FREQ 6565) 65.5277 Tj -0 -132.907 Td +(TPR 5662) 34.9481 Tj +0 -275.3067 Td (SYS_mkdir 2615) 61.1592 Tj -13042 TJm -(6565 6566) 39.3166 Tj -17.4609 -142.4 Td +(5662 5743) 39.3166 Tj +17.4613 -284.8 Td (2615 2761) 39.3166 Tj -11537.3 TJm -(timer_init 6574) 65.5277 Tj -0 -151.893 Td +(trap 2534) 39.3166 Tj +0 -294.2934 Td (SYS_mknod 2611) 61.1592 Tj -13042 TJm -(0338 1248 6574) 61.1592 Tj -17.4609 -161.387 Td +(2402 2404 2469 2534) 83.0018 Tj +17.4613 -303.7868 Td (2611 2762) 39.3166 Tj --11537.3 TJm -(TIMER_MODE 6568) 65.5277 Tj -0 -170.88 Td +-13543.8 TJm +(2573 2575 2578) 61.1592 Tj +0 -313.2801 Td (SYS_open 2610) 56.7907 Tj --13543.7 TJm -(6568 6577) 39.3166 Tj -17.4609 -180.373 Td +-11537.1 TJm +(trapframe 0477) 61.1592 Tj +17.4613 -322.7735 Td (2610 2763) 39.3166 Tj --11537.3 TJm -(TIMER_RATEGEN 6570) 78.6333 Tj -0 -189.867 Td +-13543.8 TJm +(0477 1541 1615 1723) 83.0018 Tj +0 -332.2664 Td (SYS_pipe 2604) 56.7907 Tj -13543.7 TJm -(6570 6577) 39.3166 Tj -17.4609 -199.36 Td +(2534) 17.4741 Tj +17.4613 -341.7598 Td (2604 2764) 39.3166 Tj -11537.3 TJm -(TIMER_SEL0 6569) 65.5277 Tj -0 -208.854 Td +(trapret 2474) 52.4222 Tj +0 -351.2532 Td (SYS_read 2606) 56.7907 Tj -13543.7 TJm -(6569 6577) 39.3166 Tj -17.4609 -218.347 Td +(2473 2474 2486) 61.1592 Tj +17.4613 -360.7465 Td (2606 2765) 39.3166 Tj -11537.3 TJm -(TPR 5659) 34.9481 Tj -0 -227.84 Td +(tvinit 2516) 48.0537 Tj +0 -370.2399 Td (SYS_sbrk 2619) 56.7907 Tj -13543.7 TJm -(5659 5746) 39.3166 Tj -17.4609 -237.334 Td +(0342 1228 2516) 61.1592 Tj +17.4613 -379.7332 Td (2619 2766) 39.3166 Tj -11537.3 TJm -(trap 2534) 39.3166 Tj -0 -246.827 Td +(T_DEV 3184) 43.6851 Tj +0 -389.2266 Td (SYS_sleep 2620) 61.1592 Tj -13042 TJm -(2402 2404 2469 2534) 83.0018 Tj -17.4609 -256.32 Td +(3184 4107 4157 4911) 83.0018 Tj +17.4613 -398.72 Td (2620 2767) 39.3166 Tj --13543.8 TJm -(2576 2578 2581) 61.1592 Tj -0 -265.813 Td +-11537.3 TJm +(T_DIR 3182) 43.6851 Tj +0 -408.2133 Td (SYS_unlink 2612) 65.5277 Tj --10533.8 TJm -(trapframe 0501) 61.1592 Tj -17.4609 -275.307 Td +-12540.3 TJm +(3182 4218 4365 4673) 83.0018 Tj +17.4613 -417.7067 Td (2612 2768) 39.3166 Tj -13543.8 TJm -(0501 1541 1616 1718) 83.0018 Tj -0 -284.8 Td +(4778 4838 4868 4923) 83.0018 Tj +0 -427.2 Td (SYS_wait 2603) 56.7907 Tj -13543.7 TJm -(2534) 17.4741 Tj -17.4609 -294.293 Td +(4938) 17.4741 Tj +17.4613 -436.6934 Td (2603 2769) 39.3166 Tj -11537.3 TJm -(trapret 2474) 52.4222 Tj -0 -303.787 Td +(T_FILE 3183) 48.0537 Tj +0 -446.1868 Td (SYS_write 2605) 61.1592 Tj -13042 TJm -(2473 2474 2486) 61.1592 Tj -17.4609 -313.28 Td +(3183 4862) 39.3166 Tj +17.4613 -455.6801 Td (2605 2770) 39.3166 Tj -11537.3 TJm (T_SYSCALL 2376) 61.1592 Tj -0 -322.773 Td +0 -465.1735 Td (taskstate 0701) 61.1592 Tj -13042 TJm -(2376 2522 2536 6612) 83.0018 Tj -17.4609 -332.267 Td -(0701 1569) 39.3166 Tj --13543.8 TJm -(6617 6707) 39.3166 Tj -0 -341.76 Td -(TCCR 5681) 39.3166 Tj --13543.8 TJm -(tvinit 2516) 48.0537 Tj -17.4609 -351.254 Td -(5681 5717) 39.3166 Tj --13543.8 TJm -(0343 1239 2516) 61.1592 Tj -0 -360.747 Td -(TDCR 5682) 39.3166 Tj +(2376 2522 2536 6712) 83.0018 Tj +17.4613 -474.6665 Td +(0701 1561) 39.3166 Tj -13543.8 TJm -(userinit 1752) 56.7907 Tj -17.4609 -370.24 Td -(5682 5715) 39.3166 Tj +(6717 6807) 39.3166 Tj +0 -484.1598 Td +(TDCR 5685) 39.3166 Tj -13543.8 TJm -(0305 1249 1752) 61.1592 Tj -0 -379.734 Td -(T_DEV 3184) 43.6851 Tj --13042.1 TJm -(VER 5658) 34.9481 Tj -17.4609 -389.227 Td -(3184 4107 4157 4911) 83.0018 Tj --8527.18 TJm -(5658 5726) 39.3166 Tj -0 -398.72 Td -(T_DIR 3182) 43.6851 Tj --13042.1 TJm -(wait 2053) 39.3166 Tj -17.4609 -408.213 Td -(3182 4218 4365 4673) 83.0018 Tj --8527.18 TJm -(0306 2053 2827 6683) 83.0018 Tj -17.4609 -417.707 Td -(4778 4838 4868 4923) 83.0018 Tj --8527.18 TJm -(6712 6844 6870 6871) 83.0018 Tj -17.4609 -427.2 Td -(4938) 17.4741 Tj --16052.2 TJm -(6918) 17.4741 Tj -0 -436.693 Td -(T_FILE 3183) 48.0537 Tj --12540.4 TJm -(waitdisk 1151) 56.7907 Tj -17.4609 -446.187 Td -(3183 4862) 39.3166 Tj +(userinit 1757) 56.7907 Tj +17.4613 -493.6532 Td +(5685 5713) 39.3166 Tj -13543.8 TJm -(1151 1163 1172) 61.1592 Tj -0 -455.68 Td -(ticks 2513) 43.6851 Tj --13042.1 TJm -(wakeup 1965) 48.0537 Tj -17.4609 -465.173 Td -(0342 2513 2554 2555) 83.0018 Tj --8527.18 TJm -(0307 1965 2555 3420) 83.0018 Tj -17.4609 -474.667 Td -(2872 2873 2878) 61.1592 Tj --11035.5 TJm -(3639 3891 3916 5220) 83.0018 Tj -0 -484.16 Td -(tickslock 2512) 61.1592 Tj --13042 TJm -(5223 5262 5268 5292) 83.0018 Tj -17.4609 -493.654 Td -(0344 2512 2524 2553) 83.0018 Tj --8527.18 TJm -(6441) 17.4741 Tj +(0302 1235 1757) 61.1592 Tj Q Q q @@ -3781,24 +3790,58 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 cross-references Page 12) 192.215 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 cross-references Page 12) 192.2146 Tj 0 -28.4801 Td +(VER 5661) 34.9481 Tj +-16052 TJm +(6491) 17.4741 Tj +17.4613 -37.9735 Td +(5661 5723) 39.3166 Tj +-11537.3 TJm (wakeup1 1953) 52.4222 Tj --14045.3 TJm -(4785 4786) 39.3166 Tj -17.4609 -37.9735 Td +0 -47.4664 Td +(wait 2053) 39.3166 Tj +-15550.3 TJm (1953 1968 2026 2033) 83.0018 Tj +17.4613 -56.9598 Td +(0303 2053 2829 6783) 83.0018 Tj -6520.6 TJm -(yield 1867) 43.6851 Tj -0 -47.4668 Td (writei 4152) 48.0537 Tj --14547 TJm -(0308 1867 2596) 61.1592 Tj -17.4609 -56.9602 Td +17.4613 -66.4531 Td +(6812 6944 6970 6971) 83.0018 Tj +-8527.14 TJm (0249 4152 4274 4532) 83.0018 Tj +17.4613 -75.9465 Td +(7026) 17.4741 Tj +-16052.1 TJm +(4785 4786) 39.3166 Tj +0 -85.4399 Td +(waitdisk 1151) 56.7907 Tj +-11537.1 TJm +(xchg 0451) 39.3166 Tj +17.4613 -94.9332 Td +(1151 1163 1172) 61.1592 Tj +-11035.5 TJm +(0451 1260 1384 1415) 83.0018 Tj +0 -104.4266 Td +(wakeup 1965) 48.0537 Tj +-12540.5 TJm +(yield 1869) 43.6851 Tj +17.4613 -113.9199 Td +(0304 1965 2551 3419) 83.0018 Tj +-8527.14 TJm +(0305 1869 2592) 61.1592 Tj +17.4613 -123.4133 Td +(3639 3891 3916 5220) 83.0018 Tj +-6520.6 TJm +(_namei 4354) 48.0537 Tj +17.4613 -132.9067 Td +(5223 5262 5267 5290) 83.0018 Tj +-8527.14 TJm +(4354 4392 4398) 61.1592 Tj Q Q Q @@ -3826,8 +3869,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -3842,16 +3884,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/types.h Page 1) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/types.h Page 1) 166.0035 Tj 0 -28.4801 Td (0100 typedef unsigned int uint;) 144.161 Tj 0 -37.9735 Td (0101 typedef unsigned short ushort;) 152.898 Tj 0 -47.4668 Td -(0102 typedef unsigned char uchar;) 148.529 Tj +(0102 typedef unsigned char uchar;) 148.5295 Tj 0 -56.9602 Td (0103 ) 21.8426 Tj 0 -66.4535 Td @@ -3864,89 +3906,89 @@ q (0107 ) 21.8426 Tj 0 -104.427 Td (0108 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (0109 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (0110 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (0111 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (0112 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (0113 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (0114 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (0115 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (0116 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (0117 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (0118 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (0119 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (0120 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (0121 ) 21.8426 Tj 0 -237.334 Td (0122 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (0123 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (0124 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (0125 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (0126 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (0127 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (0128 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (0129 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (0130 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (0131 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (0132 ) 21.8426 Tj 0 -341.761 Td (0133 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (0134 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (0135 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (0136 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (0137 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0138 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (0139 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (0140 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (0141 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0142 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0143 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0144 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0145 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0146 ) 21.8426 Tj 0 -474.668 Td (0147 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0148 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0149 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 01) 34.9481 Tj Q Q @@ -3961,115 +4003,115 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/param.h Page 1) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/param.h Page 1) 166.0035 Tj 0 -28.4801 Td -(0150 #define NPROC 64 // maximum number of processes) 262.111 Tj +(0150 #define NPROC 64 // maximum number of processes) 262.1109 Tj 0 -37.9735 Td (0151 #define PAGE 4096 // granularity of user-space memo\ -ry allocation) 332.007 Tj +ry allocation) 332.0071 Tj 0 -47.4668 Td (0152 #define KSTACKSIZE PAGE // size of per-process kernel sta\ -ck) 283.953 Tj +ck) 283.9534 Tj 0 -56.9602 Td -(0153 #define NCPU 8 // maximum number of CPUs) 240.268 Tj +(0153 #define NCPU 8 // maximum number of CPUs) 240.2683 Tj 0 -66.4535 Td -(0154 #define NOFILE 16 // open files per process) 240.268 Tj +(0154 #define NOFILE 16 // open files per process) 240.2683 Tj 0 -75.9469 Td -(0155 #define NFILE 100 // open files per system) 235.9 Tj +(0155 #define NFILE 100 // open files per system) 235.8998 Tj 0 -85.4403 Td -(0156 #define NBUF 10 // size of disk block cache) 249.005 Tj +(0156 #define NBUF 10 // size of disk block cache) 249.0053 Tj 0 -94.9336 Td (0157 #define NINODE 50 // maximum number of active i-nod\ -es) 283.953 Tj +es) 283.9534 Tj 0 -104.427 Td -(0158 #define NDEV 10 // maximum major device number) 262.111 Tj -0 -113.92 Td +(0158 #define NDEV 10 // maximum major device number) 262.1109 Tj +0 -113.9203 Td (0159 #define ROOTDEV 1 // device number of file system r\ -oot disk) 310.165 Tj -0 -123.414 Td +oot disk) 310.1645 Tj +0 -123.4137 Td (0160 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (0161 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (0162 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (0163 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (0164 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (0165 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (0166 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (0167 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (0168 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (0169 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (0170 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (0171 ) 21.8426 Tj 0 -237.334 Td (0172 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (0173 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (0174 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (0175 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (0176 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (0177 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (0178 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (0179 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (0180 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (0181 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (0182 ) 21.8426 Tj 0 -341.761 Td (0183 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (0184 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (0185 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (0186 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (0187 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0188 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (0189 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (0190 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (0191 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0192 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0193 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0194 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0195 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0196 ) 21.8426 Tj 0 -474.668 Td (0197 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0198 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0199 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 01) 34.9481 Tj Q Q @@ -4098,8 +4140,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -4114,10 +4155,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/defs.h Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/defs.h Page 1) 161.635 Tj 0 -28.4801 Td (0200 struct buf;) 69.8962 Tj 0 -37.9735 Td @@ -4136,91 +4177,91 @@ q (0207 struct stat;) 74.2647 Tj 0 -104.427 Td (0208 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (0209 // bio.c) 56.7907 Tj -0 -123.414 Td +0 -123.4137 Td (0210 void binit\(void\);) 144.161 Tj -0 -132.907 Td -(0211 struct buf* bread\(uint, uint\);) 170.372 Tj -0 -142.4 Td -(0212 void brelse\(struct buf*\);) 179.109 Tj -0 -151.894 Td -(0213 void bwrite\(struct buf*\);) 179.109 Tj -0 -161.387 Td +0 -132.9071 Td +(0211 struct buf* bread\(uint, uint\);) 170.3721 Tj +0 -142.4004 Td +(0212 void brelse\(struct buf*\);) 179.1091 Tj +0 -151.8938 Td +(0213 void bwrite\(struct buf*\);) 179.1091 Tj +0 -161.3871 Td (0214 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (0215 // console.c) 74.2647 Tj -0 -180.374 Td -(0216 void console_init\(void\);) 174.741 Tj -0 -189.867 Td -(0217 void cprintf\(char*, ...\);) 179.109 Tj -0 -199.361 Td -(0218 void console_intr\(int\(*\)\(void\)\);) 209.689 Tj -0 -208.854 Td +0 -180.3739 Td +(0216 void console_init\(void\);) 174.7406 Tj +0 -189.8672 Td +(0217 void cprintf\(char*, ...\);) 179.1091 Tj +0 -199.3606 Td +(0218 void console_intr\(int\(*\)\(void\)\);) 209.6887 Tj +0 -208.8539 Td (0219 void panic\(char*\) __attribute__\(\(noreturn\)\ -\);) 262.111 Tj -0 -218.347 Td +\);) 262.1109 Tj +0 -218.3473 Td (0220 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (0221 // exec.c) 61.1592 Tj 0 -237.334 Td -(0222 int exec\(char*, char**\);) 179.109 Tj -0 -246.827 Td +(0222 int exec\(char*, char**\);) 179.1091 Tj +0 -246.8274 Td (0223 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (0224 // file.c) 61.1592 Tj -0 -265.814 Td +0 -265.8141 Td (0225 struct file* filealloc\(void\);) 161.635 Tj -0 -275.307 Td -(0226 void fileclose\(struct file*\);) 196.583 Tj -0 -284.801 Td -(0227 struct file* filedup\(struct file*\);) 187.846 Tj -0 -294.294 Td -(0228 void fileinit\(void\);) 157.267 Tj -0 -303.788 Td -(0229 int fileread\(struct file*, char*, int n\);) 253.374 Tj -0 -313.281 Td -(0230 int filestat\(struct file*, struct stat*\);) 253.374 Tj -0 -322.774 Td -(0231 int filewrite\(struct file*, char*, int n\);) 257.742 Tj -0 -332.268 Td +0 -275.3075 Td +(0226 void fileclose\(struct file*\);) 196.5831 Tj +0 -284.8008 Td +(0227 struct file* filedup\(struct file*\);) 187.8461 Tj +0 -294.2942 Td +(0228 void fileinit\(void\);) 157.2665 Tj +0 -303.7875 Td +(0229 int fileread\(struct file*, char*, int n\);) 253.3738 Tj +0 -313.2809 Td +(0230 int filestat\(struct file*, struct stat*\);) 253.3738 Tj +0 -322.7743 Td +(0231 int filewrite\(struct file*, char*, int n\);) 257.7424 Tj +0 -332.2676 Td (0232 ) 21.8426 Tj 0 -341.761 Td (0233 // fs.c) 52.4222 Tj -0 -351.254 Td -(0234 int dirlink\(struct inode*, char*, uint\);) 249.005 Tj -0 -360.748 Td -(0235 struct inode* dirlookup\(struct inode*, char*, uint*\);) 262.111 Tj -0 -370.241 Td -(0236 struct inode* ialloc\(uint, short\);) 179.109 Tj -0 -379.734 Td -(0237 struct inode* idup\(struct inode*\);) 179.109 Tj -0 -389.228 Td +0 -351.2543 Td +(0234 int dirlink\(struct inode*, char*, uint\);) 249.0053 Tj +0 -360.7477 Td +(0235 struct inode* dirlookup\(struct inode*, char*, uint*\);) 262.1109 Tj +0 -370.2411 Td +(0236 struct inode* ialloc\(uint, short\);) 179.1091 Tj +0 -379.7344 Td +(0237 struct inode* idup\(struct inode*\);) 179.1091 Tj +0 -389.2278 Td (0238 void iinit\(void\);) 144.161 Tj -0 -398.721 Td -(0239 void ilock\(struct inode*\);) 183.478 Tj -0 -408.214 Td -(0240 void iput\(struct inode*\);) 179.109 Tj -0 -417.708 Td -(0241 void iunlock\(struct inode*\);) 192.215 Tj -0 -427.201 Td -(0242 void iunlockput\(struct inode*\);) 205.32 Tj -0 -436.695 Td -(0243 void iupdate\(struct inode*\);) 192.215 Tj -0 -446.188 Td -(0244 int namecmp\(const char*, const char*\);) 240.268 Tj -0 -455.681 Td -(0245 struct inode* namei\(char*\);) 148.529 Tj -0 -465.175 Td -(0246 struct inode* nameiparent\(char*, char*\);) 205.32 Tj +0 -398.7211 Td +(0239 void ilock\(struct inode*\);) 183.4776 Tj +0 -408.2145 Td +(0240 void iput\(struct inode*\);) 179.1091 Tj +0 -417.7079 Td +(0241 void iunlock\(struct inode*\);) 192.2146 Tj +0 -427.2012 Td +(0242 void iunlockput\(struct inode*\);) 205.3202 Tj +0 -436.6946 Td +(0243 void iupdate\(struct inode*\);) 192.2146 Tj +0 -446.1879 Td +(0244 int namecmp\(const char*, const char*\);) 240.2683 Tj +0 -455.6813 Td +(0245 struct inode* namei\(char*\);) 148.5295 Tj +0 -465.1747 Td +(0246 struct inode* nameiparent\(char*, char*\);) 205.3202 Tj 0 -474.668 Td -(0247 int readi\(struct inode*, char*, uint, uint\);) 266.479 Tj -0 -484.161 Td -(0248 void stati\(struct inode*, struct stat*\);) 244.637 Tj -0 -493.655 Td +(0247 int readi\(struct inode*, char*, uint, uint\);) 266.4794 Tj +0 -484.1614 Td +(0248 void stati\(struct inode*, struct stat*\);) 244.6368 Tj +0 -493.6547 Td (0249 int writei\(struct inode*, char*, uint, uint\)\ -;) 270.848 Tj -0 -522.135 Td +;) 270.8479 Tj +0 -522.1348 Td (Sheet 02) 34.9481 Tj Q Q @@ -4235,111 +4276,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/defs.h Page 2) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/defs.h Page 2) 161.635 Tj 0 -28.4801 Td (0250 // ide.c) 56.7907 Tj 0 -37.9735 Td -(0251 void ide_init\(void\);) 157.267 Tj +(0251 void ide_init\(void\);) 157.2665 Tj 0 -47.4668 Td -(0252 void ide_intr\(void\);) 157.267 Tj +(0252 void ide_intr\(void\);) 157.2665 Tj 0 -56.9602 Td -(0253 void ide_rw\(struct buf *\);) 183.478 Tj +(0253 void ide_rw\(struct buf *\);) 183.4776 Tj 0 -66.4535 Td (0254 ) 21.8426 Tj 0 -75.9469 Td (0255 // ioapic.c) 69.8962 Tj 0 -85.4403 Td -(0256 void ioapic_enable\(int irq, int cpu\);) 231.531 Tj +(0256 void ioapic_enable\(int irq, int cpu\);) 231.5313 Tj 0 -94.9336 Td -(0257 extern uchar ioapic_id;) 135.424 Tj +(0257 extern uchar ioapic_id;) 135.4239 Tj 0 -104.427 Td -(0258 void ioapic_init\(void\);) 170.372 Tj -0 -113.92 Td +(0258 void ioapic_init\(void\);) 170.3721 Tj +0 -113.9203 Td (0259 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (0260 // kalloc.c) 69.8962 Tj -0 -132.907 Td +0 -132.9071 Td (0261 char* kalloc\(int\);) 144.161 Tj -0 -142.4 Td -(0262 void kfree\(char*, int\);) 170.372 Tj -0 -151.894 Td +0 -142.4004 Td +(0262 void kfree\(char*, int\);) 170.3721 Tj +0 -151.8938 Td (0263 void kinit\(void\);) 144.161 Tj -0 -161.387 Td +0 -161.3871 Td (0264 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (0265 // kbd.c) 56.7907 Tj -0 -180.374 Td -(0266 void kbd_intr\(void\);) 157.267 Tj -0 -189.867 Td +0 -180.3739 Td +(0266 void kbd_intr\(void\);) 157.2665 Tj +0 -189.8672 Td (0267 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (0268 // lapic.c) 65.5277 Tj -0 -208.854 Td -(0269 int cpu\(void\);) 135.424 Tj -0 -218.347 Td -(0270 extern volatile uint* lapic;) 157.267 Tj -0 -227.841 Td -(0271 void lapic_disableintr\(void\);) 196.583 Tj +0 -208.8539 Td +(0269 int cpu\(void\);) 135.4239 Tj +0 -218.3473 Td +(0270 extern volatile uint* lapic;) 157.2665 Tj +0 -227.8407 Td +(0271 void lapic_eoi\(void\);) 161.635 Tj 0 -237.334 Td -(0272 void lapic_enableintr\(void\);) 192.215 Tj -0 -246.827 Td -(0273 void lapic_eoi\(void\);) 161.635 Tj -0 -256.321 Td -(0274 void lapic_init\(int\);) 161.635 Tj -0 -265.814 Td -(0275 void lapic_startap\(uchar, uint\);) 209.689 Tj -0 -275.307 Td -(0276 void lapic_timerinit\(void\);) 187.846 Tj -0 -284.801 Td -(0277 void lapic_timerintr\(void\);) 187.846 Tj -0 -294.294 Td -(0278 ) 21.8426 Tj -0 -303.788 Td -(0279 // mp.c) 52.4222 Tj -0 -313.281 Td -(0280 extern int ismp;) 113.581 Tj -0 -322.774 Td -(0281 int mp_bcpu\(void\);) 152.898 Tj -0 -332.268 Td -(0282 void mp_init\(void\);) 152.898 Tj +(0272 void lapic_init\(int\);) 161.635 Tj +0 -246.8274 Td +(0273 void lapic_startap\(uchar, uint\);) 209.6887 Tj +0 -256.3207 Td +(0274 ) 21.8426 Tj +0 -265.8141 Td +(0275 // mp.c) 52.4222 Tj +0 -275.3075 Td +(0276 extern int ismp;) 113.5814 Tj +0 -284.8008 Td +(0277 int mp_bcpu\(void\);) 152.898 Tj +0 -294.2942 Td +(0278 void mp_init\(void\);) 152.898 Tj +0 -303.7875 Td +(0279 void mp_startthem\(void\);) 174.7406 Tj +0 -313.2809 Td +(0280 ) 21.8426 Tj +0 -322.7743 Td +(0281 // picirq.c) 69.8962 Tj +0 -332.2676 Td +(0282 void pic_enable\(int\);) 161.635 Tj 0 -341.761 Td -(0283 void mp_startthem\(void\);) 174.741 Tj -0 -351.254 Td +(0283 void pic_init\(void\);) 157.2665 Tj +0 -351.2543 Td (0284 ) 21.8426 Tj -0 -360.748 Td -(0285 // picirq.c) 69.8962 Tj -0 -370.241 Td -(0286 void pic_enable\(int\);) 161.635 Tj -0 -379.734 Td -(0287 void pic_init\(void\);) 157.267 Tj -0 -389.228 Td -(0288 ) 21.8426 Tj -0 -398.721 Td -(0289 // pipe.c) 61.1592 Tj -0 -408.214 Td -(0290 int pipealloc\(struct file**, struct file**\);) 266.479 Tj -0 -417.708 Td -(0291 void pipeclose\(struct pipe*, int\);) 218.426 Tj -0 -427.201 Td -(0292 int piperead\(struct pipe*, char*, int\);) 244.637 Tj -0 -436.695 Td -(0293 int pipewrite\(struct pipe*, char*, int\);) 249.005 Tj -0 -446.188 Td -(0294 ) 21.8426 Tj -0 -455.681 Td -(0295 // proc.c) 61.1592 Tj -0 -465.175 Td -(0296 struct proc* copyproc\(struct proc*\);) 192.215 Tj +0 -360.7477 Td +(0285 // pipe.c) 61.1592 Tj +0 -370.2411 Td +(0286 int pipealloc\(struct file**, struct file**\);) 266.4794 Tj +0 -379.7344 Td +(0287 void pipeclose\(struct pipe*, int\);) 218.4257 Tj +0 -389.2278 Td +(0288 int piperead\(struct pipe*, char*, int\);) 244.6368 Tj +0 -398.7211 Td +(0289 int pipewrite\(struct pipe*, char*, int\);) 249.0053 Tj +0 -408.2145 Td +(0290 ) 21.8426 Tj +0 -417.7079 Td +(0291 // proc.c) 61.1592 Tj +0 -427.2012 Td +(0292 struct proc* copyproc\(struct proc*\);) 192.2146 Tj +0 -436.6946 Td +(0293 struct proc* curproc\(void\);) 152.898 Tj +0 -446.1879 Td +(0294 void exit\(void\);) 139.7925 Tj +0 -455.6813 Td +(0295 int growproc\(int\);) 152.898 Tj +0 -465.1747 Td +(0296 int kill\(int\);) 135.4239 Tj 0 -474.668 Td -(0297 void exit\(void\);) 139.792 Tj -0 -484.161 Td -(0298 int growproc\(int\);) 152.898 Tj -0 -493.655 Td -(0299 int kill\(int\);) 135.424 Tj -0 -522.135 Td +(0297 void pinit\(void\);) 144.161 Tj +0 -484.1614 Td +(0298 void procdump\(void\);) 157.2665 Tj +0 -493.6547 Td +(0299 void scheduler\(void\) __attribute__\(\(noretur\ +n\)\);) 275.2164 Tj +0 -522.1348 Td (Sheet 02) 34.9481 Tj Q Q @@ -4368,8 +4410,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -4384,112 +4425,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/defs.h Page 3) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/defs.h Page 3) 161.635 Tj 0 -28.4801 Td -(0300 void pinit\(void\);) 144.161 Tj +(0300 void setupsegs\(struct proc*\);) 196.5831 Tj 0 -37.9735 Td -(0301 void procdump\(void\);) 157.267 Tj +(0301 void sleep\(void*, struct spinlock*\);) 227.1628 Tj 0 -47.4668 Td -(0302 void scheduler\(void\) __attribute__\(\(noretur\ -n\)\);) 275.216 Tj +(0302 void userinit\(void\);) 157.2665 Tj 0 -56.9602 Td -(0303 void setupsegs\(struct proc*\);) 196.583 Tj +(0303 int wait\(void\);) 139.7925 Tj 0 -66.4535 Td -(0304 void sleep\(void*, struct spinlock*\);) 227.163 Tj +(0304 void wakeup\(void*\);) 152.898 Tj 0 -75.9469 Td -(0305 void userinit\(void\);) 157.267 Tj +(0305 void yield\(void\);) 144.161 Tj 0 -85.4403 Td -(0306 int wait\(void\);) 139.792 Tj +(0306 ) 21.8426 Tj 0 -94.9336 Td -(0307 void wakeup\(void*\);) 152.898 Tj +(0307 // swtch.S) 65.5277 Tj 0 -104.427 Td -(0308 void yield\(void\);) 144.161 Tj -0 -113.92 Td +(0308 void swtch\(struct context*, struct context*\);) 266.4794 Tj +0 -113.9203 Td (0309 ) 21.8426 Tj -0 -123.414 Td -(0310 // swtch.S) 65.5277 Tj -0 -132.907 Td -(0311 void swtch\(struct context*, struct context*\);) 266.479 Tj -0 -142.4 Td -(0312 ) 21.8426 Tj -0 -151.894 Td -(0313 // spinlock.c) 78.6333 Tj -0 -161.387 Td -(0314 void acquire\(struct spinlock*\);) 205.32 Tj -0 -170.88 Td -(0315 void getcallerpcs\(void*, uint*\);) 209.689 Tj -0 -180.374 Td -(0316 int holding\(struct spinlock*\);) 205.32 Tj -0 -189.867 Td -(0317 void initlock\(struct spinlock*, char*\);) 240.268 Tj -0 -199.361 Td -(0318 void release\(struct spinlock*\);) 205.32 Tj -0 -208.854 Td -(0319 ) 21.8426 Tj -0 -218.347 Td -(0320 // string.c) 69.8962 Tj -0 -227.841 Td -(0321 int memcmp\(const void*, const void*, uint\);) 262.111 Tj +0 -123.4137 Td +(0310 // spinlock.c) 78.6333 Tj +0 -132.9071 Td +(0311 void acquire\(struct spinlock*\);) 205.3202 Tj +0 -142.4004 Td +(0312 void getcallerpcs\(void*, uint*\);) 209.6887 Tj +0 -151.8938 Td +(0313 int holding\(struct spinlock*\);) 205.3202 Tj +0 -161.3871 Td +(0314 void initlock\(struct spinlock*, char*\);) 240.2683 Tj +0 -170.8805 Td +(0315 void release\(struct spinlock*\);) 205.3202 Tj +0 -180.3739 Td +(0316 void pushcli\(\);) 135.4239 Tj +0 -189.8672 Td +(0317 void popcli\(\);) 131.0554 Tj +0 -199.3606 Td +(0318 ) 21.8426 Tj +0 -208.8539 Td +(0319 // string.c) 69.8962 Tj +0 -218.3473 Td +(0320 int memcmp\(const void*, const void*, uint\);) 262.1109 Tj +0 -227.8407 Td +(0321 void* memmove\(void*, const void*, uint\);) 240.2683 Tj 0 -237.334 Td -(0322 void* memmove\(void*, const void*, uint\);) 240.268 Tj -0 -246.827 Td -(0323 void* memset\(void*, int, uint\);) 200.952 Tj -0 -256.321 Td -(0324 char* safestrcpy\(char*, const char*, int\);) 249.005 Tj -0 -265.814 Td -(0325 int strlen\(const char*\);) 179.109 Tj -0 -275.307 Td -(0326 int strncmp\(const char*, const char*, uint\);) 266.479 Tj -0 -284.801 Td -(0327 char* strncpy\(char*, const char*, int\);) 235.9 Tj -0 -294.294 Td -(0328 ) 21.8426 Tj -0 -303.788 Td -(0329 // syscall.c) 74.2647 Tj -0 -313.281 Td -(0330 int argint\(int, int*\);) 170.372 Tj -0 -322.774 Td -(0331 int argptr\(int, char**, int\);) 200.952 Tj -0 -332.268 Td -(0332 int argstr\(int, char**\);) 179.109 Tj +(0322 void* memset\(void*, int, uint\);) 200.9517 Tj +0 -246.8274 Td +(0323 char* safestrcpy\(char*, const char*, int\);) 249.0053 Tj +0 -256.3207 Td +(0324 int strlen\(const char*\);) 179.1091 Tj +0 -265.8141 Td +(0325 int strncmp\(const char*, const char*, uint\);) 266.4794 Tj +0 -275.3075 Td +(0326 char* strncpy\(char*, const char*, int\);) 235.8998 Tj +0 -284.8008 Td +(0327 ) 21.8426 Tj +0 -294.2942 Td +(0328 // syscall.c) 74.2647 Tj +0 -303.7875 Td +(0329 int argint\(int, int*\);) 170.3721 Tj +0 -313.2809 Td +(0330 int argptr\(int, char**, int\);) 200.9517 Tj +0 -322.7743 Td +(0331 int argstr\(int, char**\);) 179.1091 Tj +0 -332.2676 Td +(0332 int fetchint\(struct proc*, uint, int*\);) 244.6368 Tj 0 -341.761 Td -(0333 int fetchint\(struct proc*, uint, int*\);) 244.637 Tj -0 -351.254 Td -(0334 int fetchstr\(struct proc*, uint, char**\);) 253.374 Tj -0 -360.748 Td -(0335 void syscall\(void\);) 152.898 Tj -0 -370.241 Td -(0336 ) 21.8426 Tj -0 -379.734 Td -(0337 // timer.c) 65.5277 Tj -0 -389.228 Td -(0338 void timer_init\(void\);) 166.004 Tj -0 -398.721 Td -(0339 ) 21.8426 Tj -0 -408.214 Td -(0340 // trap.c) 61.1592 Tj -0 -417.708 Td -(0341 void idtinit\(void\);) 152.898 Tj -0 -427.201 Td -(0342 extern int ticks;) 117.95 Tj -0 -436.695 Td -(0343 void tvinit\(void\);) 148.529 Tj -0 -446.188 Td -(0344 extern struct spinlock tickslock;) 166.004 Tj -0 -455.681 Td -(0345 ) 21.8426 Tj -0 -465.175 Td -(0346 // number of elements in fixed-size array) 200.952 Tj +(0333 int fetchstr\(struct proc*, uint, char**\);) 253.3738 Tj +0 -351.2543 Td +(0334 void syscall\(void\);) 152.898 Tj +0 -360.7477 Td +(0335 ) 21.8426 Tj +0 -370.2411 Td +(0336 // timer.c) 65.5277 Tj +0 -379.7344 Td +(0337 void timer_init\(void\);) 166.0035 Tj +0 -389.2278 Td +(0338 ) 21.8426 Tj +0 -398.7211 Td +(0339 // trap.c) 61.1592 Tj +0 -408.2145 Td +(0340 void idtinit\(void\);) 152.898 Tj +0 -417.7079 Td +(0341 extern int ticks;) 117.9499 Tj +0 -427.2012 Td +(0342 void tvinit\(void\);) 148.5295 Tj +0 -436.6946 Td +(0343 extern struct spinlock tickslock;) 166.0035 Tj +0 -446.1879 Td +(0344 ) 21.8426 Tj +0 -455.6813 Td +(0345 // number of elements in fixed-size array) 200.9517 Tj +0 -465.1747 Td +(0346 #define NELEM\(x\) \(sizeof\(x\)/sizeof\(\(x\)[0]\)\)) 209.6887 Tj 0 -474.668 Td -(0347 #define NELEM\(x\) \(sizeof\(x\)/sizeof\(\(x\)[0]\)\)) 209.689 Tj -0 -484.161 Td +(0347 ) 21.8426 Tj +0 -484.1614 Td (0348 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0349 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 03) 34.9481 Tj Q Q @@ -4504,116 +4544,116 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/x86.h Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/x86.h Page 1) 157.2665 Tj 0 -28.4801 Td -(0350 // Special assembly routines to access x86-specific) 244.637 Tj +(0350 // Routines to let C code use special x86 instructions.) 262.1109 Tj 0 -37.9735 Td -(0351 // hardware instructions.) 131.055 Tj +(0351 ) 21.8426 Tj 0 -47.4668 Td -(0352 ) 21.8426 Tj +(0352 static inline uchar) 104.8443 Tj 0 -56.9602 Td -(0353 static inline uchar) 104.844 Tj +(0353 inb\(ushort port\)) 91.7388 Tj 0 -66.4535 Td -(0354 inb\(ushort port\)) 91.7388 Tj +(0354 {) 26.2111 Tj 0 -75.9469 Td -(0355 {) 26.2111 Tj +(0355 uchar data;) 78.6333 Tj 0 -85.4403 Td -(0356 uchar data;) 78.6333 Tj +(0356 ) 21.8426 Tj 0 -94.9336 Td -(0357 ) 21.8426 Tj +(0357 asm volatile\("in %1,%0" : "=a" \(data\) : "d" \(port\)\)\ +;) 257.7424 Tj 0 -104.427 Td -(0358 asm volatile\("in %1,%0" : "=a" \(data\) : "d" \(port\)\)\ -;) 257.742 Tj -0 -113.92 Td -(0359 return data;) 83.0018 Tj -0 -123.414 Td -(0360 }) 26.2111 Tj -0 -132.907 Td -(0361 ) 21.8426 Tj -0 -142.4 Td -(0362 static inline void) 100.476 Tj -0 -151.894 Td -(0363 insl\(int port, void *addr, int cnt\)) 174.741 Tj -0 -161.387 Td -(0364 {) 26.2111 Tj -0 -170.88 Td -(0365 asm volatile\("cld\\n\\trepne\\n\\tinsl" :) 209.689 Tj -0 -180.374 Td -(0366 "=D" \(addr\), "=c" \(cnt\) :) 227.163 Tj -0 -189.867 Td -(0367 "d" \(port\), "0" \(addr\), "1" \(cnt\)\ - :) 262.111 Tj -0 -199.361 Td -(0368 "memory", "cc"\);) 174.741 Tj -0 -208.854 Td -(0369 }) 26.2111 Tj -0 -218.347 Td -(0370 ) 21.8426 Tj -0 -227.841 Td -(0371 static inline void) 100.476 Tj +(0358 return data;) 83.0018 Tj +0 -113.9203 Td +(0359 }) 26.2111 Tj +0 -123.4137 Td +(0360 ) 21.8426 Tj +0 -132.9071 Td +(0361 static inline void) 100.4758 Tj +0 -142.4004 Td +(0362 insl\(int port, void *addr, int cnt\)) 174.7406 Tj +0 -151.8938 Td +(0363 {) 26.2111 Tj +0 -161.3871 Td +(0364 asm volatile\("cld\\n\\trepne\\n\\tinsl" :) 209.6887 Tj +0 -170.8805 Td +(0365 "=D" \(addr\), "=c" \(cnt\) :) 227.1628 Tj +0 -180.3739 Td +(0366 "d" \(port\), "0" \(addr\), "1" \(cnt\)\ + :) 262.1109 Tj +0 -189.8672 Td +(0367 "memory", "cc"\);) 174.7406 Tj +0 -199.3606 Td +(0368 }) 26.2111 Tj +0 -208.8539 Td +(0369 ) 21.8426 Tj +0 -218.3473 Td +(0370 static inline void) 100.4758 Tj +0 -227.8407 Td +(0371 outb\(ushort port, uchar data\)) 148.5295 Tj 0 -237.334 Td -(0372 outb\(ushort port, uchar data\)) 148.529 Tj -0 -246.827 Td -(0373 {) 26.2111 Tj -0 -256.321 Td -(0374 asm volatile\("out %0,%1" : : "a" \(data\), "d" \(port\)\ -\);) 262.111 Tj -0 -265.814 Td -(0375 }) 26.2111 Tj -0 -275.307 Td -(0376 ) 21.8426 Tj -0 -284.801 Td -(0377 static inline void) 100.476 Tj -0 -294.294 Td -(0378 outw\(ushort port, ushort data\)) 152.898 Tj -0 -303.788 Td -(0379 {) 26.2111 Tj -0 -313.281 Td -(0380 asm volatile\("out %0,%1" : : "a" \(data\), "d" \(port\)\ -\);) 262.111 Tj -0 -322.774 Td -(0381 }) 26.2111 Tj -0 -332.268 Td -(0382 ) 21.8426 Tj +(0372 {) 26.2111 Tj +0 -246.8274 Td +(0373 asm volatile\("out %0,%1" : : "a" \(data\), "d" \(port\)\ +\);) 262.1109 Tj +0 -256.3207 Td +(0374 }) 26.2111 Tj +0 -265.8141 Td +(0375 ) 21.8426 Tj +0 -275.3075 Td +(0376 static inline void) 100.4758 Tj +0 -284.8008 Td +(0377 outw\(ushort port, ushort data\)) 152.898 Tj +0 -294.2942 Td +(0378 {) 26.2111 Tj +0 -303.7875 Td +(0379 asm volatile\("out %0,%1" : : "a" \(data\), "d" \(port\)\ +\);) 262.1109 Tj +0 -313.2809 Td +(0380 }) 26.2111 Tj +0 -322.7743 Td +(0381 ) 21.8426 Tj +0 -332.2676 Td +(0382 static inline void) 100.4758 Tj 0 -341.761 Td -(0383 static inline void) 100.476 Tj -0 -351.254 Td -(0384 outsl\(int port, const void *addr, int cnt\)) 205.32 Tj -0 -360.748 Td -(0385 {) 26.2111 Tj -0 -370.241 Td -(0386 asm volatile\("cld\\n\\trepne\\n\\toutsl" :) 209.689 Tj -0 -379.734 Td -(0387 "=S" \(addr\), "=c" \(cnt\) :) 227.163 Tj -0 -389.228 Td -(0388 "d" \(port\), "0" \(addr\), "1" \(cnt\)\ - :) 262.111 Tj -0 -398.721 Td -(0389 "cc"\);) 131.055 Tj -0 -408.214 Td -(0390 }) 26.2111 Tj -0 -417.708 Td -(0391 ) 21.8426 Tj -0 -427.201 Td -(0392 ) 21.8426 Tj -0 -436.695 Td -(0393 ) 21.8426 Tj -0 -446.188 Td -(0394 ) 21.8426 Tj -0 -455.681 Td +(0383 outsl\(int port, const void *addr, int cnt\)) 205.3202 Tj +0 -351.2543 Td +(0384 {) 26.2111 Tj +0 -360.7477 Td +(0385 asm volatile\("cld\\n\\trepne\\n\\toutsl" :) 209.6887 Tj +0 -370.2411 Td +(0386 "=S" \(addr\), "=c" \(cnt\) :) 227.1628 Tj +0 -379.7344 Td +(0387 "d" \(port\), "0" \(addr\), "1" \(cnt\)\ + :) 262.1109 Tj +0 -389.2278 Td +(0388 "cc"\);) 131.0554 Tj +0 -398.7211 Td +(0389 }) 26.2111 Tj +0 -408.2145 Td +(0390 ) 21.8426 Tj +0 -417.7079 Td +(0391 static inline uint) 100.4758 Tj +0 -427.2012 Td +(0392 read_ebp\(void\)) 83.0018 Tj +0 -436.6946 Td +(0393 {) 26.2111 Tj +0 -446.1879 Td +(0394 uint ebp;) 69.8962 Tj +0 -455.6813 Td (0395 ) 21.8426 Tj -0 -465.175 Td -(0396 ) 21.8426 Tj +0 -465.1747 Td +(0396 asm volatile\("movl %%ebp, %0" : "=a" \(ebp\)\);) 222.7942 Tj 0 -474.668 Td -(0397 ) 21.8426 Tj -0 -484.161 Td -(0398 ) 21.8426 Tj -0 -493.655 Td +(0397 return ebp;) 78.6333 Tj +0 -484.1614 Td +(0398 }) 26.2111 Tj +0 -493.6547 Td (0399 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 03) 34.9481 Tj Q Q @@ -4642,8 +4682,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -4658,111 +4697,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/x86.h Page 2) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/x86.h Page 2) 157.2665 Tj 0 -28.4801 Td (0400 struct segdesc;) 87.3703 Tj 0 -37.9735 Td (0401 ) 21.8426 Tj 0 -47.4668 Td -(0402 static inline void) 100.476 Tj +(0402 static inline void) 100.4758 Tj 0 -56.9602 Td -(0403 lgdt\(struct segdesc *p, int size\)) 166.004 Tj +(0403 lgdt\(struct segdesc *p, int size\)) 166.0035 Tj 0 -66.4535 Td (0404 {) 26.2111 Tj 0 -75.9469 Td -(0405 volatile ushort pd[3];) 126.687 Tj +(0405 volatile ushort pd[3];) 126.6869 Tj 0 -85.4403 Td (0406 ) 21.8426 Tj 0 -94.9336 Td (0407 pd[0] = size-1;) 96.1073 Tj 0 -104.427 Td -(0408 pd[1] = \(uint\)p;) 100.476 Tj -0 -113.92 Td -(0409 pd[2] = \(uint\)p >> 16;) 126.687 Tj -0 -123.414 Td +(0408 pd[1] = \(uint\)p;) 100.4758 Tj +0 -113.9203 Td +(0409 pd[2] = \(uint\)p >> 16;) 126.6869 Tj +0 -123.4137 Td (0410 ) 21.8426 Tj -0 -132.907 Td -(0411 asm volatile\("lgdt \(%0\)" : : "r" \(pd\)\);) 200.952 Tj -0 -142.4 Td +0 -132.9071 Td +(0411 asm volatile\("lgdt \(%0\)" : : "r" \(pd\)\);) 200.9517 Tj +0 -142.4004 Td (0412 }) 26.2111 Tj -0 -151.894 Td +0 -151.8938 Td (0413 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (0414 struct gatedesc;) 91.7388 Tj -0 -170.88 Td +0 -170.8805 Td (0415 ) 21.8426 Tj -0 -180.374 Td -(0416 static inline void) 100.476 Tj -0 -189.867 Td -(0417 lidt\(struct gatedesc *p, int size\)) 170.372 Tj -0 -199.361 Td +0 -180.3739 Td +(0416 static inline void) 100.4758 Tj +0 -189.8672 Td +(0417 lidt\(struct gatedesc *p, int size\)) 170.3721 Tj +0 -199.3606 Td (0418 {) 26.2111 Tj -0 -208.854 Td -(0419 volatile ushort pd[3];) 126.687 Tj -0 -218.347 Td +0 -208.8539 Td +(0419 volatile ushort pd[3];) 126.6869 Tj +0 -218.3473 Td (0420 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (0421 pd[0] = size-1;) 96.1073 Tj 0 -237.334 Td -(0422 pd[1] = \(uint\)p;) 100.476 Tj -0 -246.827 Td -(0423 pd[2] = \(uint\)p >> 16;) 126.687 Tj -0 -256.321 Td +(0422 pd[1] = \(uint\)p;) 100.4758 Tj +0 -246.8274 Td +(0423 pd[2] = \(uint\)p >> 16;) 126.6869 Tj +0 -256.3207 Td (0424 ) 21.8426 Tj -0 -265.814 Td -(0425 asm volatile\("lidt \(%0\)" : : "r" \(pd\)\);) 200.952 Tj -0 -275.307 Td +0 -265.8141 Td +(0425 asm volatile\("lidt \(%0\)" : : "r" \(pd\)\);) 200.9517 Tj +0 -275.3075 Td (0426 }) 26.2111 Tj -0 -284.801 Td +0 -284.8008 Td (0427 ) 21.8426 Tj -0 -294.294 Td -(0428 static inline void) 100.476 Tj -0 -303.788 Td +0 -294.2942 Td +(0428 static inline void) 100.4758 Tj +0 -303.7875 Td (0429 ltr\(ushort sel\)) 87.3703 Tj -0 -313.281 Td +0 -313.2809 Td (0430 {) 26.2111 Tj -0 -322.774 Td -(0431 asm volatile\("ltr %0" : : "r" \(sel\)\);) 192.215 Tj -0 -332.268 Td +0 -322.7743 Td +(0431 asm volatile\("ltr %0" : : "r" \(sel\)\);) 192.2146 Tj +0 -332.2676 Td (0432 }) 26.2111 Tj 0 -341.761 Td (0433 ) 21.8426 Tj -0 -351.254 Td -(0434 static inline uint) 100.476 Tj -0 -360.748 Td +0 -351.2543 Td +(0434 static inline uint) 100.4758 Tj +0 -360.7477 Td (0435 read_eflags\(void\)) 96.1073 Tj -0 -370.241 Td +0 -370.2411 Td (0436 {) 26.2111 Tj -0 -379.734 Td +0 -379.7344 Td (0437 uint eflags;) 83.0018 Tj -0 -389.228 Td -(0438 asm volatile\("pushfl; popl %0" : "=r" \(eflags\)\);) 240.268 Tj -0 -398.721 Td +0 -389.2278 Td +(0438 asm volatile\("pushfl; popl %0" : "=r" \(eflags\)\);) 240.2683 Tj +0 -398.7211 Td (0439 return eflags;) 91.7388 Tj -0 -408.214 Td +0 -408.2145 Td (0440 }) 26.2111 Tj -0 -417.708 Td +0 -417.7079 Td (0441 ) 21.8426 Tj -0 -427.201 Td -(0442 static inline void) 100.476 Tj -0 -436.695 Td -(0443 write_eflags\(uint eflags\)) 131.055 Tj -0 -446.188 Td +0 -427.2012 Td +(0442 static inline void) 100.4758 Tj +0 -436.6946 Td +(0443 write_eflags\(uint eflags\)) 131.0554 Tj +0 -446.1879 Td (0444 {) 26.2111 Tj -0 -455.681 Td -(0445 asm volatile\("pushl %0; popfl" : : "r" \(eflags\)\);) 244.637 Tj -0 -465.175 Td +0 -455.6813 Td +(0445 asm volatile\("pushl %0; popfl" : : "r" \(eflags\)\);) 244.6368 Tj +0 -465.1747 Td (0446 }) 26.2111 Tj 0 -474.668 Td (0447 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0448 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0449 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 04) 34.9481 Tj Q Q @@ -4777,115 +4816,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/x86.h Page 3) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/x86.h Page 3) 157.2665 Tj 0 -28.4801 Td -(0450 static inline void) 100.476 Tj +(0450 static inline uint) 100.4758 Tj 0 -37.9735 Td -(0451 cpuid\(uint info, uint *eaxp, uint *ebxp, uint *ecxp, uint\ - *edxp\)) 301.427 Tj +(0451 xchg\(volatile uint *addr, uint newval\)) 187.8461 Tj 0 -47.4668 Td (0452 {) 26.2111 Tj 0 -56.9602 Td -(0453 uint eax, ebx, ecx, edx;) 135.424 Tj +(0453 uint result;) 83.0018 Tj 0 -66.4535 Td (0454 ) 21.8426 Tj 0 -75.9469 Td -(0455 asm volatile\("cpuid" :) 126.687 Tj +(0455 // The + in "+m" denotes a read-modify-write operand.) 262.1109 Tj 0 -85.4403 Td -(0456 "=a" \(eax\), "=b" \(ebx\), "=c" \(ecx\), "\ -=d" \(edx\) :) 297.059 Tj +(0456 asm volatile\("lock; xchgl %0, %1" :) 183.4776 Tj 0 -94.9336 Td -(0457 "a" \(info\)\);) 139.792 Tj +(0457 "+m" \(*addr\), "=a" \(result\) :) 214.0572 Tj 0 -104.427 Td -(0458 if\(eaxp\)) 65.5277 Tj -0 -113.92 Td -(0459 *eaxp = eax;) 91.7388 Tj -0 -123.414 Td -(0460 if\(ebxp\)) 65.5277 Tj -0 -132.907 Td -(0461 *ebxp = ebx;) 91.7388 Tj -0 -142.4 Td -(0462 if\(ecxp\)) 65.5277 Tj -0 -151.894 Td -(0463 *ecxp = ecx;) 91.7388 Tj -0 -161.387 Td -(0464 if\(edxp\)) 65.5277 Tj -0 -170.88 Td -(0465 *edxp = edx;) 91.7388 Tj -0 -180.374 Td -(0466 }) 26.2111 Tj -0 -189.867 Td -(0467 ) 21.8426 Tj -0 -199.361 Td -(0468 static inline uint) 100.476 Tj -0 -208.854 Td -(0469 cmpxchg\(uint oldval, uint newval, volatile uint* lock_add\ -r\)) 279.585 Tj -0 -218.347 Td -(0470 {) 26.2111 Tj -0 -227.841 Td -(0471 uint result;) 83.0018 Tj +(0458 "1" \(newval\) :) 148.5295 Tj +0 -113.9203 Td +(0459 "cc"\);) 113.5814 Tj +0 -123.4137 Td +(0460 return result;) 91.7388 Tj +0 -132.9071 Td +(0461 }) 26.2111 Tj +0 -142.4004 Td +(0462 ) 21.8426 Tj +0 -151.8938 Td +(0463 static inline void) 100.4758 Tj +0 -161.3871 Td +(0464 cli\(void\)) 61.1592 Tj +0 -170.8805 Td +(0465 {) 26.2111 Tj +0 -180.3739 Td +(0466 asm volatile\("cli"\);) 117.9499 Tj +0 -189.8672 Td +(0467 }) 26.2111 Tj +0 -199.3606 Td +(0468 ) 21.8426 Tj +0 -208.8539 Td +(0469 static inline void) 100.4758 Tj +0 -218.3473 Td +(0470 sti\(void\)) 61.1592 Tj +0 -227.8407 Td +(0471 {) 26.2111 Tj 0 -237.334 Td -(0472 ) 21.8426 Tj -0 -246.827 Td -(0473 // The + in "+m" denotes a read-modify-write operand.) 262.111 Tj -0 -256.321 Td -(0474 asm volatile\("lock; cmpxchgl %2, %0" :) 196.583 Tj -0 -265.814 Td -(0475 "+m" \(*lock_addr\), "=a" \(result\)\ - :) 270.848 Tj -0 -275.307 Td -(0476 "r"\(newval\), "1"\(oldval\) :) 235.9 Tj -0 -284.801 Td -(0477 "cc"\);) 148.529 Tj -0 -294.294 Td -(0478 return result;) 91.7388 Tj -0 -303.788 Td -(0479 }) 26.2111 Tj -0 -313.281 Td -(0480 ) 21.8426 Tj -0 -322.774 Td -(0481 static inline void) 100.476 Tj -0 -332.268 Td -(0482 cli\(void\)) 61.1592 Tj +(0472 asm volatile\("sti"\);) 117.9499 Tj +0 -246.8274 Td +(0473 }) 26.2111 Tj +0 -256.3207 Td +(0474 ) 21.8426 Tj +0 -265.8141 Td +(0475 // Layout of the trap frame built on the stack by the) 253.3738 Tj +0 -275.3075 Td +(0476 // hardware and by trapasm.S, and passed to trap\(\).) 244.6368 Tj +0 -284.8008 Td +(0477 struct trapframe {) 100.4758 Tj +0 -294.2942 Td +(0478 // registers as pushed by pusha) 166.0035 Tj +0 -303.7875 Td +(0479 uint edi;) 69.8962 Tj +0 -313.2809 Td +(0480 uint esi;) 69.8962 Tj +0 -322.7743 Td +(0481 uint ebp;) 69.8962 Tj +0 -332.2676 Td +(0482 uint oesp; // useless & ignored) 187.8461 Tj 0 -341.761 Td -(0483 {) 26.2111 Tj -0 -351.254 Td -(0484 asm volatile\("cli"\);) 117.95 Tj -0 -360.748 Td -(0485 }) 26.2111 Tj -0 -370.241 Td -(0486 ) 21.8426 Tj -0 -379.734 Td -(0487 static inline void) 100.476 Tj -0 -389.228 Td -(0488 sti\(void\)) 61.1592 Tj -0 -398.721 Td -(0489 {) 26.2111 Tj -0 -408.214 Td -(0490 asm volatile\("sti"\);) 117.95 Tj -0 -417.708 Td -(0491 }) 26.2111 Tj -0 -427.201 Td -(0492 ) 21.8426 Tj -0 -436.695 Td -(0493 ) 21.8426 Tj -0 -446.188 Td +(0483 uint ebx;) 69.8962 Tj +0 -351.2543 Td +(0484 uint edx;) 69.8962 Tj +0 -360.7477 Td +(0485 uint ecx;) 69.8962 Tj +0 -370.2411 Td +(0486 uint eax;) 69.8962 Tj +0 -379.7344 Td +(0487 ) 21.8426 Tj +0 -389.2278 Td +(0488 // rest of trap frame) 122.3184 Tj +0 -398.7211 Td +(0489 ushort es;) 74.2647 Tj +0 -408.2145 Td +(0490 ushort padding1;) 100.4758 Tj +0 -417.7079 Td +(0491 ushort ds;) 74.2647 Tj +0 -427.2012 Td +(0492 ushort padding2;) 100.4758 Tj +0 -436.6946 Td +(0493 uint trapno;) 83.0018 Tj +0 -446.1879 Td (0494 ) 21.8426 Tj -0 -455.681 Td -(0495 ) 21.8426 Tj -0 -465.175 Td -(0496 ) 21.8426 Tj +0 -455.6813 Td +(0495 // below here defined by x86 hardware) 192.2146 Tj +0 -465.1747 Td +(0496 uint err;) 69.8962 Tj 0 -474.668 Td -(0497 ) 21.8426 Tj -0 -484.161 Td -(0498 ) 21.8426 Tj -0 -493.655 Td -(0499 ) 21.8426 Tj -0 -522.135 Td +(0497 uint eip;) 69.8962 Tj +0 -484.1614 Td +(0498 ushort cs;) 74.2647 Tj +0 -493.6547 Td +(0499 ushort padding3;) 100.4758 Tj +0 -522.1348 Td (Sheet 04) 34.9481 Tj Q Q @@ -4914,8 +4949,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -4930,113 +4964,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/x86.h Page 4) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/x86.h Page 4) 157.2665 Tj 0 -28.4801 Td -(0500 // Layout of the trap frame on the stack upon entry to tra\ -p.) 283.953 Tj +(0500 uint eflags;) 83.0018 Tj 0 -37.9735 Td -(0501 struct trapframe {) 100.476 Tj +(0501 ) 21.8426 Tj 0 -47.4668 Td -(0502 // registers as pushed by pusha) 166.004 Tj +(0502 // below here only when crossing rings, such as from use\ +r to kernel) 323.2701 Tj 0 -56.9602 Td -(0503 uint edi;) 69.8962 Tj +(0503 uint esp;) 69.8962 Tj 0 -66.4535 Td -(0504 uint esi;) 69.8962 Tj +(0504 ushort ss;) 74.2647 Tj 0 -75.9469 Td -(0505 uint ebp;) 69.8962 Tj +(0505 ushort padding4;) 100.4758 Tj 0 -85.4403 Td -(0506 uint oesp; // useless & ignored) 187.846 Tj +(0506 };) 30.5796 Tj 0 -94.9336 Td -(0507 uint ebx;) 69.8962 Tj +(0507 ) 21.8426 Tj 0 -104.427 Td -(0508 uint edx;) 69.8962 Tj -0 -113.92 Td -(0509 uint ecx;) 69.8962 Tj -0 -123.414 Td -(0510 uint eax;) 69.8962 Tj -0 -132.907 Td +(0508 ) 21.8426 Tj +0 -113.9203 Td +(0509 ) 21.8426 Tj +0 -123.4137 Td +(0510 ) 21.8426 Tj +0 -132.9071 Td (0511 ) 21.8426 Tj -0 -142.4 Td -(0512 // rest of trap frame) 122.318 Tj -0 -151.894 Td -(0513 ushort es;) 74.2647 Tj -0 -161.387 Td -(0514 ushort padding1;) 100.476 Tj -0 -170.88 Td -(0515 ushort ds;) 74.2647 Tj -0 -180.374 Td -(0516 ushort padding2;) 100.476 Tj -0 -189.867 Td -(0517 uint trapno;) 83.0018 Tj -0 -199.361 Td +0 -142.4004 Td +(0512 ) 21.8426 Tj +0 -151.8938 Td +(0513 ) 21.8426 Tj +0 -161.3871 Td +(0514 ) 21.8426 Tj +0 -170.8805 Td +(0515 ) 21.8426 Tj +0 -180.3739 Td +(0516 ) 21.8426 Tj +0 -189.8672 Td +(0517 ) 21.8426 Tj +0 -199.3606 Td (0518 ) 21.8426 Tj -0 -208.854 Td -(0519 // below here defined by x86 hardware) 192.215 Tj -0 -218.347 Td -(0520 uint err;) 69.8962 Tj -0 -227.841 Td -(0521 uint eip;) 69.8962 Tj +0 -208.8539 Td +(0519 ) 21.8426 Tj +0 -218.3473 Td +(0520 ) 21.8426 Tj +0 -227.8407 Td +(0521 ) 21.8426 Tj 0 -237.334 Td -(0522 ushort cs;) 74.2647 Tj -0 -246.827 Td -(0523 ushort padding3;) 100.476 Tj -0 -256.321 Td -(0524 uint eflags;) 83.0018 Tj -0 -265.814 Td +(0522 ) 21.8426 Tj +0 -246.8274 Td +(0523 ) 21.8426 Tj +0 -256.3207 Td +(0524 ) 21.8426 Tj +0 -265.8141 Td (0525 ) 21.8426 Tj -0 -275.307 Td -(0526 // below here only when crossing rings, such as from use\ -r to kernel) 323.27 Tj -0 -284.801 Td -(0527 uint esp;) 69.8962 Tj -0 -294.294 Td -(0528 ushort ss;) 74.2647 Tj -0 -303.788 Td -(0529 ushort padding4;) 100.476 Tj -0 -313.281 Td -(0530 };) 30.5796 Tj -0 -322.774 Td +0 -275.3075 Td +(0526 ) 21.8426 Tj +0 -284.8008 Td +(0527 ) 21.8426 Tj +0 -294.2942 Td +(0528 ) 21.8426 Tj +0 -303.7875 Td +(0529 ) 21.8426 Tj +0 -313.2809 Td +(0530 ) 21.8426 Tj +0 -322.7743 Td (0531 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (0532 ) 21.8426 Tj 0 -341.761 Td (0533 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (0534 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (0535 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (0536 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (0537 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0538 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (0539 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (0540 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (0541 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0542 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0543 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0544 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0545 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0546 ) 21.8426 Tj 0 -474.668 Td (0547 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0548 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0549 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 05) 34.9481 Tj Q Q @@ -5051,14 +5084,14 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/asm.h Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/asm.h Page 1) 157.2665 Tj 0 -28.4801 Td (0550 //) 30.5796 Tj 0 -37.9735 Td -(0551 // macros to create x86 segments from assembler) 227.163 Tj +(0551 // assembler macros to create x86 segments) 205.3202 Tj 0 -47.4668 Td (0552 //) 30.5796 Tj 0 -56.9602 Td @@ -5070,102 +5103,102 @@ q (0555 .word 0, 0; \ \\) 305.796 Tj 0 -85.4403 Td -(0556 .byte 0, 0, 0, 0) 126.687 Tj +(0556 .byte 0, 0, 0, 0) 126.6869 Tj 0 -94.9336 Td (0557 ) 21.8426 Tj 0 -104.427 Td (0558 #define SEG_ASM\(type,base,lim\) \ \\) 305.796 Tj -0 -113.92 Td +0 -113.9203 Td (0559 .word \(\(\(lim\) >> 12\) & 0xffff\), \(\(base\) &\ 0xffff\); \\) 305.796 Tj -0 -123.414 Td +0 -123.4137 Td (0560 .byte \(\(\(base\) >> 16\) & 0xff\), \(0x90 | \(ty\ pe\)\), \\) 305.796 Tj -0 -132.907 Td +0 -132.9071 Td (0561 \(0xC0 | \(\(\(lim\) >> 28\) & 0xf\)\), \(\ -\(\(base\) >> 24\) & 0xff\)) 332.007 Tj -0 -142.4 Td +\(\(base\) >> 24\) & 0xff\)) 332.0071 Tj +0 -142.4004 Td (0562 ) 21.8426 Tj -0 -151.894 Td -(0563 #define STA_X 0x8 // Executable segment) 235.9 Tj -0 -161.387 Td +0 -151.8938 Td +(0563 #define STA_X 0x8 // Executable segment) 235.8998 Tj +0 -161.3871 Td (0564 #define STA_E 0x4 // Expand down \(non-executabl\ -e segments\)) 318.902 Tj -0 -170.88 Td +e segments\)) 318.9016 Tj +0 -170.8805 Td (0565 #define STA_C 0x4 // Conforming code segment \(e\ -xecutable only\)) 336.376 Tj -0 -180.374 Td +xecutable only\)) 336.3756 Tj +0 -180.3739 Td (0566 #define STA_W 0x2 // Writeable \(non-executable \ -segments\)) 310.165 Tj -0 -189.867 Td +segments\)) 310.1645 Tj +0 -189.8672 Td (0567 #define STA_R 0x2 // Readable \(executable segme\ nts\)) 288.322 Tj -0 -199.361 Td -(0568 #define STA_A 0x1 // Accessed) 192.215 Tj -0 -208.854 Td +0 -199.3606 Td +(0568 #define STA_A 0x1 // Accessed) 192.2146 Tj +0 -208.8539 Td (0569 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (0570 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (0571 ) 21.8426 Tj 0 -237.334 Td (0572 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (0573 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (0574 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (0575 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (0576 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (0577 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (0578 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (0579 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (0580 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (0581 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (0582 ) 21.8426 Tj 0 -341.761 Td (0583 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (0584 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (0585 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (0586 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (0587 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0588 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (0589 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (0590 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (0591 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0592 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0593 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0594 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0595 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0596 ) 21.8426 Tj 0 -474.668 Td (0597 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0598 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0599 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 05) 34.9481 Tj Q Q @@ -5194,8 +5227,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -5210,123 +5242,123 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/mmu.h Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/mmu.h Page 1) 157.2665 Tj 0 -28.4801 Td -(0600 // This file contains definitions for the) 200.952 Tj +(0600 // This file contains definitions for the) 200.9517 Tj 0 -37.9735 Td -(0601 // x86 memory management unit \(MMU\).) 179.109 Tj +(0601 // x86 memory management unit \(MMU\).) 179.1091 Tj 0 -47.4668 Td (0602 ) 21.8426 Tj 0 -56.9602 Td -(0603 // Eflags register) 100.476 Tj +(0603 // Eflags register) 100.4758 Tj 0 -66.4535 Td -(0604 #define FL_CF 0x00000001 // Carry Flag) 253.374 Tj +(0604 #define FL_CF 0x00000001 // Carry Flag) 253.3738 Tj 0 -75.9469 Td -(0605 #define FL_PF 0x00000004 // Parity Flag) 257.742 Tj +(0605 #define FL_PF 0x00000004 // Parity Flag) 257.7424 Tj 0 -85.4403 Td (0606 #define FL_AF 0x00000010 // Auxiliary carry\ Flag) 297.059 Tj 0 -94.9336 Td -(0607 #define FL_ZF 0x00000040 // Zero Flag) 249.005 Tj +(0607 #define FL_ZF 0x00000040 // Zero Flag) 249.0053 Tj 0 -104.427 Td -(0608 #define FL_SF 0x00000080 // Sign Flag) 249.005 Tj -0 -113.92 Td -(0609 #define FL_TF 0x00000100 // Trap Flag) 249.005 Tj -0 -123.414 Td +(0608 #define FL_SF 0x00000080 // Sign Flag) 249.0053 Tj +0 -113.9203 Td +(0609 #define FL_TF 0x00000100 // Trap Flag) 249.0053 Tj +0 -123.4137 Td (0610 #define FL_IF 0x00000200 // Interrupt Enabl\ -e) 279.585 Tj -0 -132.907 Td -(0611 #define FL_DF 0x00000400 // Direction Flag) 270.848 Tj -0 -142.4 Td -(0612 #define FL_OF 0x00000800 // Overflow Flag) 266.479 Tj -0 -151.894 Td +e) 279.5849 Tj +0 -132.9071 Td +(0611 #define FL_DF 0x00000400 // Direction Flag) 270.8479 Tj +0 -142.4004 Td +(0612 #define FL_OF 0x00000800 // Overflow Flag) 266.4794 Tj +0 -151.8938 Td (0613 #define FL_IOPL_MASK 0x00003000 // I/O Privilege L\ -evel bitmask) 327.639 Tj -0 -161.387 Td -(0614 #define FL_IOPL_0 0x00000000 // IOPL == 0) 257.742 Tj -0 -170.88 Td -(0615 #define FL_IOPL_1 0x00001000 // IOPL == 1) 257.742 Tj -0 -180.374 Td -(0616 #define FL_IOPL_2 0x00002000 // IOPL == 2) 257.742 Tj -0 -189.867 Td -(0617 #define FL_IOPL_3 0x00003000 // IOPL == 3) 257.742 Tj -0 -199.361 Td -(0618 #define FL_NT 0x00004000 // Nested Task) 257.742 Tj -0 -208.854 Td -(0619 #define FL_RF 0x00010000 // Resume Flag) 257.742 Tj -0 -218.347 Td +evel bitmask) 327.6386 Tj +0 -161.3871 Td +(0614 #define FL_IOPL_0 0x00000000 // IOPL == 0) 257.7424 Tj +0 -170.8805 Td +(0615 #define FL_IOPL_1 0x00001000 // IOPL == 1) 257.7424 Tj +0 -180.3739 Td +(0616 #define FL_IOPL_2 0x00002000 // IOPL == 2) 257.7424 Tj +0 -189.8672 Td +(0617 #define FL_IOPL_3 0x00003000 // IOPL == 3) 257.7424 Tj +0 -199.3606 Td +(0618 #define FL_NT 0x00004000 // Nested Task) 257.7424 Tj +0 -208.8539 Td +(0619 #define FL_RF 0x00010000 // Resume Flag) 257.7424 Tj +0 -218.3473 Td (0620 #define FL_VM 0x00020000 // Virtual 8086 mo\ -de) 283.953 Tj -0 -227.841 Td -(0621 #define FL_AC 0x00040000 // Alignment Check) 275.216 Tj +de) 283.9534 Tj +0 -227.8407 Td +(0621 #define FL_AC 0x00040000 // Alignment Check) 275.2164 Tj 0 -237.334 Td (0622 #define FL_VIF 0x00080000 // Virtual Interru\ pt Flag) 305.796 Tj -0 -246.827 Td +0 -246.8274 Td (0623 #define FL_VIP 0x00100000 // Virtual Interru\ -pt Pending) 318.902 Tj -0 -256.321 Td -(0624 #define FL_ID 0x00200000 // ID flag) 240.268 Tj -0 -265.814 Td +pt Pending) 318.9016 Tj +0 -256.3207 Td +(0624 #define FL_ID 0x00200000 // ID flag) 240.2683 Tj +0 -265.8141 Td (0625 ) 21.8426 Tj -0 -275.307 Td -(0626 // Segment Descriptor) 113.581 Tj -0 -284.801 Td +0 -275.3075 Td +(0626 // Segment Descriptor) 113.5814 Tj +0 -284.8008 Td (0627 struct segdesc {) 91.7388 Tj -0 -294.294 Td -(0628 uint lim_15_0 : 16; // Low bits of segment limit) 244.637 Tj -0 -303.788 Td -(0629 uint base_15_0 : 16; // Low bits of segment base address) 275.216 Tj -0 -313.281 Td +0 -294.2942 Td +(0628 uint lim_15_0 : 16; // Low bits of segment limit) 244.6368 Tj +0 -303.7875 Td +(0629 uint base_15_0 : 16; // Low bits of segment base address) 275.2164 Tj +0 -313.2809 Td (0630 uint base_23_16 : 8; // Middle bits of segment base addr\ ess) 288.322 Tj -0 -322.774 Td +0 -322.7743 Td (0631 uint type : 4; // Segment type \(see STS_ constant\ -s\)) 279.585 Tj -0 -332.268 Td -(0632 uint s : 1; // 0 = system, 1 = application) 253.374 Tj +s\)) 279.5849 Tj +0 -332.2676 Td +(0632 uint s : 1; // 0 = system, 1 = application) 253.3738 Tj 0 -341.761 Td -(0633 uint dpl : 2; // Descriptor Privilege Level) 249.005 Tj -0 -351.254 Td -(0634 uint p : 1; // Present) 166.004 Tj -0 -360.748 Td -(0635 uint lim_19_16 : 4; // High bits of segment limit) 249.005 Tj -0 -370.241 Td +(0633 uint dpl : 2; // Descriptor Privilege Level) 249.0053 Tj +0 -351.2543 Td +(0634 uint p : 1; // Present) 166.0035 Tj +0 -360.7477 Td +(0635 uint lim_19_16 : 4; // High bits of segment limit) 249.0053 Tj +0 -370.2411 Td (0636 uint avl : 1; // Unused \(available for software \ use\)) 288.322 Tj -0 -379.734 Td -(0637 uint rsv1 : 1; // Reserved) 170.372 Tj -0 -389.228 Td +0 -379.7344 Td +(0637 uint rsv1 : 1; // Reserved) 170.3721 Tj +0 -389.2278 Td (0638 uint db : 1; // 0 = 16-bit segment, 1 = 32-bit s\ -egment) 301.427 Tj -0 -398.721 Td +egment) 301.4275 Tj +0 -398.7211 Td (0639 uint g : 1; // Granularity: limit scaled by 4K \ -when set) 310.165 Tj -0 -408.214 Td +when set) 310.1645 Tj +0 -408.2145 Td (0640 uint base_31_24 : 8; // High bits of segment base addres\ -s) 279.585 Tj -0 -417.708 Td +s) 279.5849 Tj +0 -417.7079 Td (0641 };) 30.5796 Tj -0 -427.201 Td +0 -427.2012 Td (0642 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0643 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0644 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0645 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0646 ) 21.8426 Tj 0 -474.668 Td (0647 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0648 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0649 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 06) 34.9481 Tj Q Q @@ -5341,123 +5373,123 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/mmu.h Page 2) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/mmu.h Page 2) 157.2665 Tj 0 -28.4801 Td (0650 // Null segment) 87.3703 Tj 0 -37.9735 Td (0651 #define SEG_NULL \(struct segdesc\){ 0,0,0,0,0,0,0,\ -0,0,0,0,0,0 }) 323.27 Tj +0,0,0,0,0,0 }) 323.2701 Tj 0 -47.4668 Td (0652 ) 21.8426 Tj 0 -56.9602 Td (0653 // Normal segment) 96.1073 Tj 0 -66.4535 Td (0654 #define SEG\(type, base, lim, dpl\) \(struct segdesc\) \ - \\) 340.744 Tj + \\) 340.7441 Tj 0 -75.9469 Td (0655 { \(\(lim\) >> 12\) & 0xffff, \(base\) & 0xffff, \(\(base\)\ - >> 16\) & 0xff, \\) 340.744 Tj + >> 16\) & 0xff, \\) 340.7441 Tj 0 -85.4403 Td (0656 type, 1, dpl, 1, \(uint\) \(lim\) >> 28, 0, 0, 1, 1, \ - \\) 340.744 Tj + \\) 340.7441 Tj 0 -94.9336 Td -(0657 \(uint\) \(base\) >> 24 }) 131.055 Tj +(0657 \(uint\) \(base\) >> 24 }) 131.0554 Tj 0 -104.427 Td (0658 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (0659 #define SEG16\(type, base, lim, dpl\) \(struct segdesc\) \ - \\) 340.744 Tj -0 -123.414 Td + \\) 340.7441 Tj +0 -123.4137 Td (0660 { \(lim\) & 0xffff, \(base\) & 0xffff, \(\(base\) >> 16\) \ -& 0xff, \\) 340.744 Tj -0 -132.907 Td +& 0xff, \\) 340.7441 Tj +0 -132.9071 Td (0661 type, 1, dpl, 1, \(uint\) \(lim\) >> 16, 0, 0, 1, 0, \ - \\) 340.744 Tj -0 -142.4 Td -(0662 \(uint\) \(base\) >> 24 }) 131.055 Tj -0 -151.894 Td + \\) 340.7441 Tj +0 -142.4004 Td +(0662 \(uint\) \(base\) >> 24 }) 131.0554 Tj +0 -151.8938 Td (0663 ) 21.8426 Tj -0 -161.387 Td -(0664 #define DPL_USER 0x3 // User DPL) 192.215 Tj -0 -170.88 Td +0 -161.3871 Td +(0664 #define DPL_USER 0x3 // User DPL) 192.2146 Tj +0 -170.8805 Td (0665 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (0666 // Application segment type bits) 161.635 Tj -0 -189.867 Td -(0667 #define STA_X 0x8 // Executable segment) 235.9 Tj -0 -199.361 Td +0 -189.8672 Td +(0667 #define STA_X 0x8 // Executable segment) 235.8998 Tj +0 -199.3606 Td (0668 #define STA_E 0x4 // Expand down \(non-executabl\ -e segments\)) 318.902 Tj -0 -208.854 Td +e segments\)) 318.9016 Tj +0 -208.8539 Td (0669 #define STA_C 0x4 // Conforming code segment \(e\ -xecutable only\)) 336.376 Tj -0 -218.347 Td +xecutable only\)) 336.3756 Tj +0 -218.3473 Td (0670 #define STA_W 0x2 // Writeable \(non-executable \ -segments\)) 310.165 Tj -0 -227.841 Td +segments\)) 310.1645 Tj +0 -227.8407 Td (0671 #define STA_R 0x2 // Readable \(executable segme\ nts\)) 288.322 Tj 0 -237.334 Td -(0672 #define STA_A 0x1 // Accessed) 192.215 Tj -0 -246.827 Td +(0672 #define STA_A 0x1 // Accessed) 192.2146 Tj +0 -246.8274 Td (0673 ) 21.8426 Tj -0 -256.321 Td -(0674 // System segment type bits) 139.792 Tj -0 -265.814 Td -(0675 #define STS_T16A 0x1 // Available 16-bit TSS) 244.637 Tj -0 -275.307 Td -(0676 #define STS_LDT 0x2 // Local Descriptor Table) 253.374 Tj -0 -284.801 Td -(0677 #define STS_T16B 0x3 // Busy 16-bit TSS) 222.794 Tj -0 -294.294 Td -(0678 #define STS_CG16 0x4 // 16-bit Call Gate) 227.163 Tj -0 -303.788 Td +0 -256.3207 Td +(0674 // System segment type bits) 139.7925 Tj +0 -265.8141 Td +(0675 #define STS_T16A 0x1 // Available 16-bit TSS) 244.6368 Tj +0 -275.3075 Td +(0676 #define STS_LDT 0x2 // Local Descriptor Table) 253.3738 Tj +0 -284.8008 Td +(0677 #define STS_T16B 0x3 // Busy 16-bit TSS) 222.7942 Tj +0 -294.2942 Td +(0678 #define STS_CG16 0x4 // 16-bit Call Gate) 227.1628 Tj +0 -303.7875 Td (0679 #define STS_TG 0x5 // Task Gate / Coum Transmitio\ -ns) 283.953 Tj -0 -313.281 Td -(0680 #define STS_IG16 0x6 // 16-bit Interrupt Gate) 249.005 Tj -0 -322.774 Td -(0681 #define STS_TG16 0x7 // 16-bit Trap Gate) 227.163 Tj -0 -332.268 Td -(0682 #define STS_T32A 0x9 // Available 32-bit TSS) 244.637 Tj +ns) 283.9534 Tj +0 -313.2809 Td +(0680 #define STS_IG16 0x6 // 16-bit Interrupt Gate) 249.0053 Tj +0 -322.7743 Td +(0681 #define STS_TG16 0x7 // 16-bit Trap Gate) 227.1628 Tj +0 -332.2676 Td +(0682 #define STS_T32A 0x9 // Available 32-bit TSS) 244.6368 Tj 0 -341.761 Td -(0683 #define STS_T32B 0xB // Busy 32-bit TSS) 222.794 Tj -0 -351.254 Td -(0684 #define STS_CG32 0xC // 32-bit Call Gate) 227.163 Tj -0 -360.748 Td -(0685 #define STS_IG32 0xE // 32-bit Interrupt Gate) 249.005 Tj -0 -370.241 Td -(0686 #define STS_TG32 0xF // 32-bit Trap Gate) 227.163 Tj -0 -379.734 Td +(0683 #define STS_T32B 0xB // Busy 32-bit TSS) 222.7942 Tj +0 -351.2543 Td +(0684 #define STS_CG32 0xC // 32-bit Call Gate) 227.1628 Tj +0 -360.7477 Td +(0685 #define STS_IG32 0xE // 32-bit Interrupt Gate) 249.0053 Tj +0 -370.2411 Td +(0686 #define STS_TG32 0xF // 32-bit Trap Gate) 227.1628 Tj +0 -379.7344 Td (0687 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0688 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (0689 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (0690 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (0691 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0692 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0693 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0694 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0695 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0696 ) 21.8426 Tj 0 -474.668 Td (0697 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0698 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0699 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 06) 34.9481 Tj Q Q @@ -5486,8 +5518,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -5502,114 +5533,114 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/mmu.h Page 3) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/mmu.h Page 3) 157.2665 Tj 0 -28.4801 Td (0700 // Task state segment format) 144.161 Tj 0 -37.9735 Td -(0701 struct taskstate {) 100.476 Tj +(0701 struct taskstate {) 100.4758 Tj 0 -47.4668 Td -(0702 uint link; // Old ts selector) 192.215 Tj +(0702 uint link; // Old ts selector) 192.2146 Tj 0 -56.9602 Td (0703 uint esp0; // Stack pointers and segment selecto\ -rs) 283.953 Tj +rs) 283.9534 Tj 0 -66.4535 Td (0704 ushort ss0; // after an increase in privilege l\ -evel) 292.69 Tj +evel) 292.6905 Tj 0 -75.9469 Td -(0705 ushort padding1;) 100.476 Tj +(0705 ushort padding1;) 100.4758 Tj 0 -85.4403 Td (0706 uint *esp1;) 78.6333 Tj 0 -94.9336 Td (0707 ushort ss1;) 78.6333 Tj 0 -104.427 Td -(0708 ushort padding2;) 100.476 Tj -0 -113.92 Td +(0708 ushort padding2;) 100.4758 Tj +0 -113.9203 Td (0709 uint *esp2;) 78.6333 Tj -0 -123.414 Td +0 -123.4137 Td (0710 ushort ss2;) 78.6333 Tj -0 -132.907 Td -(0711 ushort padding3;) 100.476 Tj -0 -142.4 Td -(0712 void *cr3; // Page directory base) 209.689 Tj -0 -151.894 Td -(0713 uint *eip; // Saved state from last task switch) 270.848 Tj -0 -161.387 Td +0 -132.9071 Td +(0711 ushort padding3;) 100.4758 Tj +0 -142.4004 Td +(0712 void *cr3; // Page directory base) 209.6887 Tj +0 -151.8938 Td +(0713 uint *eip; // Saved state from last task switch) 270.8479 Tj +0 -161.3871 Td (0714 uint eflags;) 83.0018 Tj -0 -170.88 Td -(0715 uint eax; // More saved state \(registers\)) 249.005 Tj -0 -180.374 Td +0 -170.8805 Td +(0715 uint eax; // More saved state \(registers\)) 249.0053 Tj +0 -180.3739 Td (0716 uint ecx;) 69.8962 Tj -0 -189.867 Td +0 -189.8672 Td (0717 uint edx;) 69.8962 Tj -0 -199.361 Td +0 -199.3606 Td (0718 uint ebx;) 69.8962 Tj -0 -208.854 Td +0 -208.8539 Td (0719 uint *esp;) 74.2647 Tj -0 -218.347 Td +0 -218.3473 Td (0720 uint *ebp;) 74.2647 Tj -0 -227.841 Td +0 -227.8407 Td (0721 uint esi;) 69.8962 Tj 0 -237.334 Td (0722 uint edi;) 69.8962 Tj -0 -246.827 Td +0 -246.8274 Td (0723 ushort es; // Even more saved state \(segment se\ lectors\)) 305.796 Tj -0 -256.321 Td -(0724 ushort padding4;) 100.476 Tj -0 -265.814 Td +0 -256.3207 Td +(0724 ushort padding4;) 100.4758 Tj +0 -265.8141 Td (0725 ushort cs;) 74.2647 Tj -0 -275.307 Td -(0726 ushort padding5;) 100.476 Tj -0 -284.801 Td +0 -275.3075 Td +(0726 ushort padding5;) 100.4758 Tj +0 -284.8008 Td (0727 ushort ss;) 74.2647 Tj -0 -294.294 Td -(0728 ushort padding6;) 100.476 Tj -0 -303.788 Td +0 -294.2942 Td +(0728 ushort padding6;) 100.4758 Tj +0 -303.7875 Td (0729 ushort ds;) 74.2647 Tj -0 -313.281 Td -(0730 ushort padding7;) 100.476 Tj -0 -322.774 Td +0 -313.2809 Td +(0730 ushort padding7;) 100.4758 Tj +0 -322.7743 Td (0731 ushort fs;) 74.2647 Tj -0 -332.268 Td -(0732 ushort padding8;) 100.476 Tj +0 -332.2676 Td +(0732 ushort padding8;) 100.4758 Tj 0 -341.761 Td (0733 ushort gs;) 74.2647 Tj -0 -351.254 Td -(0734 ushort padding9;) 100.476 Tj -0 -360.748 Td +0 -351.2543 Td +(0734 ushort padding9;) 100.4758 Tj +0 -360.7477 Td (0735 ushort ldt;) 78.6333 Tj -0 -370.241 Td -(0736 ushort padding10;) 104.844 Tj -0 -379.734 Td -(0737 ushort t; // Trap on task switch) 209.689 Tj -0 -389.228 Td -(0738 ushort iomb; // I/O map base address) 214.057 Tj -0 -398.721 Td +0 -370.2411 Td +(0736 ushort padding10;) 104.8443 Tj +0 -379.7344 Td +(0737 ushort t; // Trap on task switch) 209.6887 Tj +0 -389.2278 Td +(0738 ushort iomb; // I/O map base address) 214.0572 Tj +0 -398.7211 Td (0739 };) 30.5796 Tj -0 -408.214 Td +0 -408.2145 Td (0740 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (0741 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0742 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0743 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0744 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0745 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0746 ) 21.8426 Tj 0 -474.668 Td (0747 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0748 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0749 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 07) 34.9481 Tj Q Q @@ -5624,131 +5655,131 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/mmu.h Page 4) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/mmu.h Page 4) 157.2665 Tj 0 -28.4801 Td -(0750 // Gate descriptors for interrupts and traps) 214.057 Tj +(0750 // Gate descriptors for interrupts and traps) 214.0572 Tj 0 -37.9735 Td (0751 struct gatedesc {) 96.1073 Tj 0 -47.4668 Td (0752 uint off_15_0 : 16; // low 16 bits of offset in segmen\ -t) 279.585 Tj +t) 279.5849 Tj 0 -56.9602 Td -(0753 uint ss : 16; // segment selector) 209.689 Tj +(0753 uint cs : 16; // code segment selector) 231.5313 Tj 0 -66.4535 Td (0754 uint args : 5; // # args, 0 for interrupt/trap ga\ tes) 288.322 Tj 0 -75.9469 Td (0755 uint rsv1 : 3; // reserved\(should be zero I gues\ -s\)) 279.585 Tj +s\)) 279.5849 Tj 0 -85.4403 Td -(0756 uint type : 4; // type\(STS_{TG,IG32,TG32}\)) 244.637 Tj +(0756 uint type : 4; // type\(STS_{TG,IG32,TG32}\)) 244.6368 Tj 0 -94.9336 Td -(0757 uint s : 1; // must be 0 \(system\)) 218.426 Tj +(0757 uint s : 1; // must be 0 \(system\)) 218.4257 Tj 0 -104.427 Td (0758 uint dpl : 2; // descriptor\(meaning new\) privi\ -lege level) 310.165 Tj -0 -113.92 Td -(0759 uint p : 1; // Present) 170.372 Tj -0 -123.414 Td -(0760 uint off_31_16 : 16; // high bits of offset in segment) 270.848 Tj -0 -132.907 Td +lege level) 310.1645 Tj +0 -113.9203 Td +(0759 uint p : 1; // Present) 170.3721 Tj +0 -123.4137 Td +(0760 uint off_31_16 : 16; // high bits of offset in segment) 270.8479 Tj +0 -132.9071 Td (0761 };) 30.5796 Tj -0 -142.4 Td +0 -142.4004 Td (0762 ) 21.8426 Tj -0 -151.894 Td -(0763 // Set up a normal interrupt/trap gate descriptor.) 240.268 Tj -0 -161.387 Td +0 -151.8938 Td +(0763 // Set up a normal interrupt/trap gate descriptor.) 240.2683 Tj +0 -161.3871 Td (0764 // - istrap: 1 for a trap \(= exception\) gate, 0 for an i\ -nterrupt gate.) 327.639 Tj -0 -170.88 Td +nterrupt gate.) 327.6386 Tj +0 -170.8805 Td (0765 // interrupt gate clears FL_IF, trap gate leaves FL_IF a\ -lone) 292.69 Tj -0 -180.374 Td -(0766 // - sel: Code segment selector for interrupt/trap handler) 275.216 Tj -0 -189.867 Td +lone) 292.6905 Tj +0 -180.3739 Td +(0766 // - sel: Code segment selector for interrupt/trap handler) 275.2164 Tj +0 -189.8672 Td (0767 // - off: Offset in code segment for interrupt/trap handle\ -r) 279.585 Tj -0 -199.361 Td -(0768 // - dpl: Descriptor Privilege Level -) 187.846 Tj -0 -208.854 Td +r) 279.5849 Tj +0 -199.3606 Td +(0768 // - dpl: Descriptor Privilege Level -) 187.8461 Tj +0 -208.8539 Td (0769 // the privilege level required for software to inv\ oke) 288.322 Tj -0 -218.347 Td +0 -218.3473 Td (0770 // this interrupt/trap gate explicitly using an int\ - instruction.) 332.007 Tj -0 -227.841 Td + instruction.) 332.0071 Tj +0 -227.8407 Td (0771 #define SETGATE\(gate, istrap, sel, off, d\) \ - \\) 279.585 Tj + \\) 279.5849 Tj 0 -237.334 Td (0772 { \ -\\) 279.585 Tj -0 -246.827 Td +\\) 279.5849 Tj +0 -246.8274 Td (0773 \(gate\).off_15_0 = \(uint\) \(off\) & 0xffff; \ - \\) 279.585 Tj -0 -256.321 Td -(0774 \(gate\).ss = \(sel\); \ - \\) 279.585 Tj -0 -265.814 Td + \\) 279.5849 Tj +0 -256.3207 Td +(0774 \(gate\).cs = \(sel\); \ + \\) 279.5849 Tj +0 -265.8141 Td (0775 \(gate\).args = 0; \ - \\) 279.585 Tj -0 -275.307 Td + \\) 279.5849 Tj +0 -275.3075 Td (0776 \(gate\).rsv1 = 0; \ - \\) 279.585 Tj -0 -284.801 Td + \\) 279.5849 Tj +0 -284.8008 Td (0777 \(gate\).type = \(istrap\) ? STS_TG32 : STS_IG32; \ - \\) 279.585 Tj -0 -294.294 Td + \\) 279.5849 Tj +0 -294.2942 Td (0778 \(gate\).s = 0; \ - \\) 279.585 Tj -0 -303.788 Td + \\) 279.5849 Tj +0 -303.7875 Td (0779 \(gate\).dpl = \(d\); \ - \\) 279.585 Tj -0 -313.281 Td + \\) 279.5849 Tj +0 -313.2809 Td (0780 \(gate\).p = 1; \ - \\) 279.585 Tj -0 -322.774 Td + \\) 279.5849 Tj +0 -322.7743 Td (0781 \(gate\).off_31_16 = \(uint\) \(off\) >> 16; \ - \\) 279.585 Tj -0 -332.268 Td + \\) 279.5849 Tj +0 -332.2676 Td (0782 }) 26.2111 Tj 0 -341.761 Td (0783 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (0784 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (0785 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (0786 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (0787 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0788 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (0789 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (0790 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (0791 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0792 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0793 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0794 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0795 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0796 ) 21.8426 Tj 0 -474.668 Td (0797 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0798 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0799 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 07) 34.9481 Tj Q Q @@ -5777,8 +5808,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -5793,17 +5823,17 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/elf.h Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/elf.h Page 1) 157.2665 Tj 0 -28.4801 Td -(0800 // Format of an ELF executable file) 174.741 Tj +(0800 // Format of an ELF executable file) 174.7406 Tj 0 -37.9735 Td (0801 ) 21.8426 Tj 0 -47.4668 Td (0802 #define ELF_MAGIC 0x464C457FU // "\\x7FELF" in little end\ -ian) 283.953 Tj +ian) 283.9534 Tj 0 -56.9602 Td (0803 ) 21.8426 Tj 0 -66.4535 Td @@ -5811,94 +5841,94 @@ ian) 283.953 Tj 0 -75.9469 Td (0805 struct elfhdr {) 87.3703 Tj 0 -85.4403 Td -(0806 uint magic; // must equal ELF_MAGIC) 187.846 Tj +(0806 uint magic; // must equal ELF_MAGIC) 187.8461 Tj 0 -94.9336 Td (0807 uchar elf[12];) 91.7388 Tj 0 -104.427 Td (0808 ushort type;) 83.0018 Tj -0 -113.92 Td +0 -113.9203 Td (0809 ushort machine;) 96.1073 Tj -0 -123.414 Td +0 -123.4137 Td (0810 uint version;) 87.3703 Tj -0 -132.907 Td +0 -132.9071 Td (0811 uint entry;) 78.6333 Tj -0 -142.4 Td +0 -142.4004 Td (0812 uint phoff;) 78.6333 Tj -0 -151.894 Td +0 -151.8938 Td (0813 uint shoff;) 78.6333 Tj -0 -161.387 Td +0 -161.3871 Td (0814 uint flags;) 78.6333 Tj -0 -170.88 Td +0 -170.8805 Td (0815 ushort ehsize;) 91.7388 Tj -0 -180.374 Td -(0816 ushort phentsize;) 104.844 Tj -0 -189.867 Td +0 -180.3739 Td +(0816 ushort phentsize;) 104.8443 Tj +0 -189.8672 Td (0817 ushort phnum;) 87.3703 Tj -0 -199.361 Td -(0818 ushort shentsize;) 104.844 Tj -0 -208.854 Td +0 -199.3606 Td +(0818 ushort shentsize;) 104.8443 Tj +0 -208.8539 Td (0819 ushort shnum;) 87.3703 Tj -0 -218.347 Td -(0820 ushort shstrndx;) 100.476 Tj -0 -227.841 Td +0 -218.3473 Td +(0820 ushort shstrndx;) 100.4758 Tj +0 -227.8407 Td (0821 };) 30.5796 Tj 0 -237.334 Td (0822 ) 21.8426 Tj -0 -246.827 Td -(0823 // Program section header) 131.055 Tj -0 -256.321 Td +0 -246.8274 Td +(0823 // Program section header) 131.0554 Tj +0 -256.3207 Td (0824 struct proghdr {) 91.7388 Tj -0 -265.814 Td +0 -265.8141 Td (0825 uint type;) 74.2647 Tj -0 -275.307 Td +0 -275.3075 Td (0826 uint offset;) 83.0018 Tj -0 -284.801 Td +0 -284.8008 Td (0827 uint va;) 65.5277 Tj -0 -294.294 Td +0 -294.2942 Td (0828 uint pa;) 65.5277 Tj -0 -303.788 Td +0 -303.7875 Td (0829 uint filesz;) 83.0018 Tj -0 -313.281 Td +0 -313.2809 Td (0830 uint memsz;) 78.6333 Tj -0 -322.774 Td +0 -322.7743 Td (0831 uint flags;) 78.6333 Tj -0 -332.268 Td +0 -332.2676 Td (0832 uint align;) 78.6333 Tj 0 -341.761 Td (0833 };) 30.5796 Tj -0 -351.254 Td +0 -351.2543 Td (0834 ) 21.8426 Tj -0 -360.748 Td -(0835 // Values for Proghdr type) 135.424 Tj -0 -370.241 Td -(0836 #define ELF_PROG_LOAD 1) 166.004 Tj -0 -379.734 Td +0 -360.7477 Td +(0835 // Values for Proghdr type) 135.4239 Tj +0 -370.2411 Td +(0836 #define ELF_PROG_LOAD 1) 166.0035 Tj +0 -379.7344 Td (0837 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0838 // Flag bits for Proghdr flags) 152.898 Tj -0 -398.721 Td -(0839 #define ELF_PROG_FLAG_EXEC 1) 166.004 Tj -0 -408.214 Td -(0840 #define ELF_PROG_FLAG_WRITE 2) 166.004 Tj -0 -417.708 Td -(0841 #define ELF_PROG_FLAG_READ 4) 166.004 Tj -0 -427.201 Td +0 -398.7211 Td +(0839 #define ELF_PROG_FLAG_EXEC 1) 166.0035 Tj +0 -408.2145 Td +(0840 #define ELF_PROG_FLAG_WRITE 2) 166.0035 Tj +0 -417.7079 Td +(0841 #define ELF_PROG_FLAG_READ 4) 166.0035 Tj +0 -427.2012 Td (0842 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0843 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0844 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0845 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0846 ) 21.8426 Tj 0 -474.668 Td (0847 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0848 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0849 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 08) 34.9481 Tj Q Q @@ -5913,10 +5943,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/elf.h Page 2) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/elf.h Page 2) 157.2665 Tj 0 -28.4801 Td (0850 // Blank page.) 83.0018 Tj 0 -37.9735 Td @@ -5935,89 +5965,89 @@ q (0857 ) 21.8426 Tj 0 -104.427 Td (0858 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (0859 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (0860 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (0861 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (0862 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (0863 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (0864 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (0865 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (0866 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (0867 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (0868 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (0869 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (0870 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (0871 ) 21.8426 Tj 0 -237.334 Td (0872 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (0873 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (0874 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (0875 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (0876 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (0877 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (0878 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (0879 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (0880 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (0881 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (0882 ) 21.8426 Tj 0 -341.761 Td (0883 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (0884 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (0885 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (0886 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (0887 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0888 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (0889 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (0890 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (0891 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0892 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0893 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0894 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0895 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0896 ) 21.8426 Tj 0 -474.668 Td (0897 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0898 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0899 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 08) 34.9481 Tj Q Q @@ -6046,8 +6076,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -6062,25 +6091,25 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bootasm.S Page 1) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/bootasm.S Page 1) 174.7406 Tj 0 -28.4801 Td (0900 #include "asm.h") 91.7388 Tj 0 -37.9735 Td (0901 ) 21.8426 Tj 0 -47.4668 Td (0902 # Start the first CPU: switch to 32-bit protected mode, ju\ -mp into C.) 318.902 Tj +mp into C.) 318.9016 Tj 0 -56.9602 Td (0903 # The BIOS loads this code from the first sector of the ha\ -rd disk into) 327.639 Tj +rd disk into) 327.6386 Tj 0 -66.4535 Td (0904 # memory at physical address 0x7c00 and starts executing i\ -n real mode) 323.27 Tj +n real mode) 323.2701 Tj 0 -75.9469 Td -(0905 # with %cs=0 %ip=7c00.) 117.95 Tj +(0905 # with %cs=0 %ip=7c00.) 117.9499 Tj 0 -85.4403 Td (0906 ) 21.8426 Tj 0 -94.9336 Td @@ -6089,95 +6118,95 @@ ector) 297.059 Tj 0 -104.427 Td (0908 .set PROT_MODE_DSEG, 0x10 # kernel data segment sel\ ector) 297.059 Tj -0 -113.92 Td +0 -113.9203 Td (0909 .set CR0_PE_ON, 0x1 # protected mode enable f\ lag) 288.322 Tj -0 -123.414 Td +0 -123.4137 Td (0910 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (0911 .globl start) 74.2647 Tj -0 -142.4 Td +0 -142.4004 Td (0912 start:) 48.0537 Tj -0 -151.894 Td -(0913 .code16 # Assemble for 16-bit mode) 266.479 Tj -0 -161.387 Td -(0914 cli # Disable interrupts) 240.268 Tj -0 -170.88 Td +0 -151.8938 Td +(0913 .code16 # Assemble for 16-bit mode) 266.4794 Tj +0 -161.3871 Td +(0914 cli # Disable interrupts) 240.2683 Tj +0 -170.8805 Td (0915 cld # String operations incremen\ -t) 279.585 Tj -0 -180.374 Td +t) 279.5849 Tj +0 -180.3739 Td (0916 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (0917 # Set up the important data segment registers \(DS, ES, \ SS\).) 288.322 Tj -0 -199.361 Td -(0918 xorw %ax,%ax # Segment number zero) 244.637 Tj -0 -208.854 Td -(0919 movw %ax,%ds # -> Data Segment) 227.163 Tj -0 -218.347 Td -(0920 movw %ax,%es # -> Extra Segment) 231.531 Tj -0 -227.841 Td -(0921 movw %ax,%ss # -> Stack Segment) 231.531 Tj +0 -199.3606 Td +(0918 xorw %ax,%ax # Segment number zero) 244.6368 Tj +0 -208.8539 Td +(0919 movw %ax,%ds # -> Data Segment) 227.1628 Tj +0 -218.3473 Td +(0920 movw %ax,%es # -> Extra Segment) 231.5313 Tj +0 -227.8407 Td +(0921 movw %ax,%ss # -> Stack Segment) 231.5313 Tj 0 -237.334 Td (0922 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (0923 # Enable A20:) 87.3703 Tj -0 -256.321 Td +0 -256.3207 Td (0924 # For backwards compatibility with the earliest PCs, p\ hysical) 305.796 Tj -0 -265.814 Td +0 -265.8141 Td (0925 # address line 20 is tied low, so that addresses highe\ -r than) 301.427 Tj -0 -275.307 Td +r than) 301.4275 Tj +0 -275.3075 Td (0926 # 1MB wrap around to zero by default. This code undoe\ s this.) 305.796 Tj -0 -284.801 Td +0 -284.8008 Td (0927 seta20.1:) 61.1592 Tj -0 -294.294 Td -(0928 inb $0x64,%al # Wait for not busy) 253.374 Tj -0 -303.788 Td -(0929 testb $0x2,%al) 100.476 Tj -0 -313.281 Td -(0930 jnz seta20.1) 100.476 Tj -0 -322.774 Td +0 -294.2942 Td +(0928 inb $0x64,%al # Wait for not busy) 253.3738 Tj +0 -303.7875 Td +(0929 testb $0x2,%al) 100.4758 Tj +0 -313.2809 Td +(0930 jnz seta20.1) 100.4758 Tj +0 -322.7743 Td (0931 ) 21.8426 Tj -0 -332.268 Td -(0932 movb $0xd1,%al # 0xd1 -> port 0x64) 253.374 Tj +0 -332.2676 Td +(0932 movb $0xd1,%al # 0xd1 -> port 0x64) 253.3738 Tj 0 -341.761 Td -(0933 outb %al,$0x64) 104.844 Tj -0 -351.254 Td +(0933 outb %al,$0x64) 104.8443 Tj +0 -351.2543 Td (0934 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (0935 seta20.2:) 61.1592 Tj -0 -370.241 Td -(0936 inb $0x64,%al # Wait for not busy) 253.374 Tj -0 -379.734 Td -(0937 testb $0x2,%al) 100.476 Tj -0 -389.228 Td -(0938 jnz seta20.2) 100.476 Tj -0 -398.721 Td +0 -370.2411 Td +(0936 inb $0x64,%al # Wait for not busy) 253.3738 Tj +0 -379.7344 Td +(0937 testb $0x2,%al) 100.4758 Tj +0 -389.2278 Td +(0938 jnz seta20.2) 100.4758 Tj +0 -398.7211 Td (0939 ) 21.8426 Tj -0 -408.214 Td -(0940 movb $0xdf,%al # 0xdf -> port 0x60) 253.374 Tj -0 -417.708 Td -(0941 outb %al,$0x60) 104.844 Tj -0 -427.201 Td +0 -408.2145 Td +(0940 movb $0xdf,%al # 0xdf -> port 0x60) 253.3738 Tj +0 -417.7079 Td +(0941 outb %al,$0x60) 104.8443 Tj +0 -427.2012 Td (0942 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0943 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0944 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0945 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0946 ) 21.8426 Tj 0 -474.668 Td (0947 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0948 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0949 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 09) 34.9481 Tj Q Q @@ -6192,116 +6221,116 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bootasm.S Page 2) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/bootasm.S Page 2) 174.7406 Tj 0 -28.4801 Td (0950 # Switch from real to protected mode, using a bootstrap \ GDT) 288.322 Tj 0 -37.9735 Td -(0951 # and segment translation that makes virtual addresses) 266.479 Tj +(0951 # and segment translation that makes virtual addresses) 266.4794 Tj 0 -47.4668 Td -(0952 # identical to their physical addresses, so that the) 257.742 Tj +(0952 # identical to physical addresses, so that the) 231.5313 Tj 0 -56.9602 Td (0953 # effective memory map does not change during the switch\ -.) 279.585 Tj +.) 279.5849 Tj 0 -66.4535 Td (0954 lgdt gdtdesc) 96.1073 Tj 0 -75.9469 Td -(0955 movl %cr0, %eax) 109.213 Tj +(0955 movl %cr0, %eax) 109.2129 Tj 0 -85.4403 Td -(0956 orl $CR0_PE_ON, %eax) 135.424 Tj +(0956 orl $CR0_PE_ON, %eax) 135.4239 Tj 0 -94.9336 Td -(0957 movl %eax, %cr0) 109.213 Tj +(0957 movl %eax, %cr0) 109.2129 Tj 0 -104.427 Td (0958 ) 21.8426 Tj -0 -113.92 Td -(0959 # Jump to next instruction, but in 32-bit code segment.) 270.848 Tj -0 -123.414 Td -(0960 # Switches processor into 32-bit mode.) 196.583 Tj -0 -132.907 Td -(0961 ljmp $PROT_MODE_CSEG, $protcseg) 179.109 Tj -0 -142.4 Td +0 -113.9203 Td +(0959 # Jump to next instruction, but in 32-bit code segment.) 270.8479 Tj +0 -123.4137 Td +(0960 # Switches processor into 32-bit mode.) 196.5831 Tj +0 -132.9071 Td +(0961 ljmp $PROT_MODE_CSEG, $protcseg) 179.1091 Tj +0 -142.4004 Td (0962 ) 21.8426 Tj -0 -151.894 Td -(0963 .code32 # Assemble for 32-bit mode) 266.479 Tj -0 -161.387 Td +0 -151.8938 Td +(0963 .code32 # Assemble for 32-bit mode) 266.4794 Tj +0 -161.3871 Td (0964 protcseg:) 61.1592 Tj -0 -170.88 Td -(0965 # Set up the protected-mode data segment registers) 249.005 Tj -0 -180.374 Td +0 -170.8805 Td +(0965 # Set up the protected-mode data segment registers) 249.0053 Tj +0 -180.3739 Td (0966 movw $PROT_MODE_DSEG, %ax # Our data segment selec\ tor) 288.322 Tj -0 -189.867 Td -(0967 movw %ax, %ds # -> DS: Data Segment) 262.111 Tj -0 -199.361 Td -(0968 movw %ax, %es # -> ES: Extra Segment) 266.479 Tj -0 -208.854 Td -(0969 movw %ax, %fs # -> FS) 200.952 Tj -0 -218.347 Td -(0970 movw %ax, %gs # -> GS) 200.952 Tj -0 -227.841 Td -(0971 movw %ax, %ss # -> SS: Stack Segment) 266.479 Tj +0 -189.8672 Td +(0967 movw %ax, %ds # -> DS: Data Segment) 262.1109 Tj +0 -199.3606 Td +(0968 movw %ax, %es # -> ES: Extra Segment) 266.4794 Tj +0 -208.8539 Td +(0969 movw %ax, %fs # -> FS) 200.9517 Tj +0 -218.3473 Td +(0970 movw %ax, %gs # -> GS) 200.9517 Tj +0 -227.8407 Td +(0971 movw %ax, %ss # -> SS: Stack Segment) 266.4794 Tj 0 -237.334 Td (0972 ) 21.8426 Tj -0 -246.827 Td -(0973 # Set up the stack pointer and call into C.) 218.426 Tj -0 -256.321 Td -(0974 movl $start, %esp) 117.95 Tj -0 -265.814 Td -(0975 call bootmain) 100.476 Tj -0 -275.307 Td +0 -246.8274 Td +(0973 # Set up the stack pointer and call into C.) 218.4257 Tj +0 -256.3207 Td +(0974 movl $start, %esp) 117.9499 Tj +0 -265.8141 Td +(0975 call bootmain) 100.4758 Tj +0 -275.3075 Td (0976 ) 21.8426 Tj -0 -284.801 Td -(0977 # If bootmain returns \(it shouldn't\), loop.) 218.426 Tj -0 -294.294 Td +0 -284.8008 Td +(0977 # If bootmain returns \(it shouldn't\), loop.) 218.4257 Tj +0 -294.2942 Td (0978 spin:) 43.6851 Tj -0 -303.788 Td +0 -303.7875 Td (0979 jmp spin) 83.0018 Tj -0 -313.281 Td +0 -313.2809 Td (0980 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (0981 # Bootstrap GDT) 87.3703 Tj -0 -332.268 Td +0 -332.2676 Td (0982 .p2align 2 # force 4 byte a\ -lignment) 310.165 Tj +lignment) 310.1645 Tj 0 -341.761 Td (0983 gdt:) 39.3166 Tj -0 -351.254 Td -(0984 SEG_NULLASM # null seg) 249.005 Tj -0 -360.748 Td -(0985 SEG_ASM\(STA_X|STA_R, 0x0, 0xffffffff\) # code seg) 249.005 Tj -0 -370.241 Td -(0986 SEG_ASM\(STA_W, 0x0, 0xffffffff\) # data seg) 249.005 Tj -0 -379.734 Td +0 -351.2543 Td +(0984 SEG_NULLASM # null seg) 249.0053 Tj +0 -360.7477 Td +(0985 SEG_ASM\(STA_X|STA_R, 0x0, 0xffffffff\) # code seg) 249.0053 Tj +0 -370.2411 Td +(0986 SEG_ASM\(STA_W, 0x0, 0xffffffff\) # data seg) 249.0053 Tj +0 -379.7344 Td (0987 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (0988 gdtdesc:) 56.7907 Tj -0 -398.721 Td +0 -398.7211 Td (0989 .word 0x17 # sizeof\(gdt\) \ -- 1) 279.585 Tj -0 -408.214 Td -(0990 .long gdt # address gdt) 262.111 Tj -0 -417.708 Td +- 1) 279.5849 Tj +0 -408.2145 Td +(0990 .long gdt # address gdt) 262.1109 Tj +0 -417.7079 Td (0991 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (0992 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (0993 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (0994 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (0995 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (0996 ) 21.8426 Tj 0 -474.668 Td (0997 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (0998 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (0999 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 09) 34.9481 Tj Q Q @@ -6330,8 +6359,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -6346,121 +6374,123 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bootother.S Page 1) 183.478 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/bootother.S Page 1) 183.4776 Tj 0 -28.4801 Td (1000 #include "asm.h") 91.7388 Tj 0 -37.9735 Td (1001 ) 21.8426 Tj 0 -47.4668 Td -(1002 # Start an Application Processor. This must be placed on a\ - 4KB boundary) 332.007 Tj +(1002 # Each non-boot CPU \("AP"\) is started up in response to \ +a STARTUP) 305.796 Tj 0 -56.9602 Td -(1003 # somewhere in the 1st MB of conventional memory \(APBOOTS\ -TRAP\). However,) 336.376 Tj +(1003 # IPI from the boot CPU. Section B.4.2 of the Multi-Proce\ +ssor) 292.6905 Tj 0 -66.4535 Td -(1004 # due to some shortcuts below it's restricted further to w\ -ithin the 1st) 332.007 Tj +(1004 # Specification says that the AP will start in real mode w\ +ith CS:IP) 314.533 Tj 0 -75.9469 Td -(1005 # 64KB. The AP starts in real-mode, with) 196.583 Tj +(1005 # set to XY00:0000, where XY is an 8-bit value sent with t\ +he) 283.9534 Tj 0 -85.4403 Td -(1006 # CS selector set to the startup memory address/16;) 253.374 Tj +(1006 # STARTUP. Thus this code must start at a 4096-byte bounda\ +ry.) 288.322 Tj 0 -94.9336 Td -(1007 # CS base set to startup memory address;) 205.32 Tj +(1007 #) 26.2111 Tj 0 -104.427 Td -(1008 # CS limit set to 64KB;) 131.055 Tj -0 -113.92 Td -(1009 # CPL and IP set to 0.) 126.687 Tj -0 -123.414 Td +(1008 # Because this code sets DS to zero, it must sit) 231.5313 Tj +0 -113.9203 Td +(1009 # at an address in the low 2^16 bytes.) 187.8461 Tj +0 -123.4137 Td (1010 #) 26.2111 Tj -0 -132.907 Td -(1011 # Bootothers \(in main.c\) starts each non-boot CPU in tur\ -n.) 275.216 Tj -0 -142.4 Td -(1012 # It puts the correct %esp in start-4,) 187.846 Tj -0 -151.894 Td -(1013 # and the place to jump to in start-8.) 187.846 Tj -0 -161.387 Td -(1014 #) 26.2111 Tj -0 -170.88 Td -(1015 # This code is identical to bootasm.S except:) 218.426 Tj -0 -180.374 Td -(1016 # - it does not need to enable A20) 179.109 Tj -0 -189.867 Td -(1017 # - it uses the address at start-4 for the %esp) 235.9 Tj -0 -199.361 Td -(1018 # - it jumps to the address at start-8 instead of callin\ -g bootmain) 318.902 Tj -0 -208.854 Td -(1019 ) 21.8426 Tj -0 -218.347 Td -(1020 .set PROT_MODE_CSEG, 0x8 # kernel code segment sel\ -ector) 297.059 Tj -0 -227.841 Td -(1021 .set PROT_MODE_DSEG, 0x10 # kernel data segment sel\ +0 -132.9071 Td +(1011 # Bootothers \(in main.c\) sends the STARTUPs, one at a ti\ +me.) 279.5849 Tj +0 -142.4004 Td +(1012 # It puts this code \(start\) at 0x7000.) 187.8461 Tj +0 -151.8938 Td +(1013 # It puts the correct %esp in start-4,) 187.8461 Tj +0 -161.3871 Td +(1014 # and the place to jump to in start-8.) 187.8461 Tj +0 -170.8805 Td +(1015 #) 26.2111 Tj +0 -180.3739 Td +(1016 # This code is identical to bootasm.S except:) 218.4257 Tj +0 -189.8672 Td +(1017 # - it does not need to enable A20) 179.1091 Tj +0 -199.3606 Td +(1018 # - it uses the address at start-4 for the %esp) 235.8998 Tj +0 -208.8539 Td +(1019 # - it jumps to the address at start-8 instead of callin\ +g bootmain) 318.9016 Tj +0 -218.3473 Td +(1020 ) 21.8426 Tj +0 -227.8407 Td +(1021 .set PROT_MODE_CSEG, 0x8 # kernel code segment sel\ ector) 297.059 Tj 0 -237.334 Td -(1022 .set CR0_PE_ON, 0x1 # protected mode enable f\ +(1022 .set PROT_MODE_DSEG, 0x10 # kernel data segment sel\ +ector) 297.059 Tj +0 -246.8274 Td +(1023 .set CR0_PE_ON, 0x1 # protected mode enable f\ lag) 288.322 Tj -0 -246.827 Td -(1023 ) 21.8426 Tj -0 -256.321 Td -(1024 .globl start) 74.2647 Tj -0 -265.814 Td -(1025 start:) 48.0537 Tj -0 -275.307 Td -(1026 .code16 # Assemble for 16-bit mode) 266.479 Tj -0 -284.801 Td -(1027 cli # Disable interrupts) 240.268 Tj -0 -294.294 Td -(1028 cld # String operations incremen\ -t) 279.585 Tj -0 -303.788 Td -(1029 ) 21.8426 Tj -0 -313.281 Td -(1030 # Set up the important data segment registers \(DS, ES, \ +0 -256.3207 Td +(1024 ) 21.8426 Tj +0 -265.8141 Td +(1025 .globl start) 74.2647 Tj +0 -275.3075 Td +(1026 start:) 48.0537 Tj +0 -284.8008 Td +(1027 .code16 # Assemble for 16-bit mode) 266.4794 Tj +0 -294.2942 Td +(1028 cli # Disable interrupts) 240.2683 Tj +0 -303.7875 Td +(1029 cld # String operations incremen\ +t) 279.5849 Tj +0 -313.2809 Td +(1030 ) 21.8426 Tj +0 -322.7743 Td +(1031 # Set up the important data segment registers \(DS, ES, \ SS\).) 288.322 Tj -0 -322.774 Td -(1031 xorw %ax,%ax # Segment number zero) 244.637 Tj -0 -332.268 Td -(1032 movw %ax,%ds # -> Data Segment) 227.163 Tj +0 -332.2676 Td +(1032 xorw %ax,%ax # Segment number zero) 244.6368 Tj 0 -341.761 Td -(1033 movw %ax,%es # -> Extra Segment) 231.531 Tj -0 -351.254 Td -(1034 movw %ax,%ss # -> Stack Segment) 231.531 Tj -0 -360.748 Td -(1035 ) 21.8426 Tj -0 -370.241 Td +(1033 movw %ax,%ds # -> Data Segment) 227.1628 Tj +0 -351.2543 Td +(1034 movw %ax,%es # -> Extra Segment) 231.5313 Tj +0 -360.7477 Td +(1035 movw %ax,%ss # -> Stack Segment) 231.5313 Tj +0 -370.2411 Td (1036 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (1037 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (1038 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (1039 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (1040 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (1041 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (1042 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (1043 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (1044 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1045 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1046 ) 21.8426 Tj 0 -474.668 Td (1047 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1048 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1049 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 10) 34.9481 Tj Q Q @@ -6475,116 +6505,116 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bootother.S Page 2) 183.478 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/bootother.S Page 2) 183.4776 Tj 0 -28.4801 Td (1050 # Switch from real to protected mode, using a bootstrap \ GDT) 288.322 Tj 0 -37.9735 Td -(1051 # and segment translation that makes virtual addresses) 266.479 Tj +(1051 # and segment translation that makes virtual addresses) 266.4794 Tj 0 -47.4668 Td -(1052 # identical to their physical addresses, so that the) 257.742 Tj +(1052 # identical to their physical addresses, so that the) 257.7424 Tj 0 -56.9602 Td (1053 # effective memory map does not change during the switch\ -.) 279.585 Tj +.) 279.5849 Tj 0 -66.4535 Td (1054 lgdt gdtdesc) 96.1073 Tj 0 -75.9469 Td -(1055 movl %cr0, %eax) 109.213 Tj +(1055 movl %cr0, %eax) 109.2129 Tj 0 -85.4403 Td -(1056 orl $CR0_PE_ON, %eax) 135.424 Tj +(1056 orl $CR0_PE_ON, %eax) 135.4239 Tj 0 -94.9336 Td -(1057 movl %eax, %cr0) 109.213 Tj +(1057 movl %eax, %cr0) 109.2129 Tj 0 -104.427 Td (1058 ) 21.8426 Tj -0 -113.92 Td -(1059 # Jump to next instruction, but in 32-bit code segment.) 270.848 Tj -0 -123.414 Td -(1060 # Switches processor into 32-bit mode.) 196.583 Tj -0 -132.907 Td -(1061 ljmp $PROT_MODE_CSEG, $protcseg) 179.109 Tj -0 -142.4 Td +0 -113.9203 Td +(1059 # Jump to next instruction, but in 32-bit code segment.) 270.8479 Tj +0 -123.4137 Td +(1060 # Switches processor into 32-bit mode.) 196.5831 Tj +0 -132.9071 Td +(1061 ljmp $PROT_MODE_CSEG, $protcseg) 179.1091 Tj +0 -142.4004 Td (1062 ) 21.8426 Tj -0 -151.894 Td -(1063 .code32 # Assemble for 32-bit mode) 266.479 Tj -0 -161.387 Td +0 -151.8938 Td +(1063 .code32 # Assemble for 32-bit mode) 266.4794 Tj +0 -161.3871 Td (1064 protcseg:) 61.1592 Tj -0 -170.88 Td -(1065 # Set up the protected-mode data segment registers) 249.005 Tj -0 -180.374 Td +0 -170.8805 Td +(1065 # Set up the protected-mode data segment registers) 249.0053 Tj +0 -180.3739 Td (1066 movw $PROT_MODE_DSEG, %ax # Our data segment selec\ tor) 288.322 Tj -0 -189.867 Td -(1067 movw %ax, %ds # -> DS: Data Segment) 262.111 Tj -0 -199.361 Td -(1068 movw %ax, %es # -> ES: Extra Segment) 266.479 Tj -0 -208.854 Td -(1069 movw %ax, %fs # -> FS) 200.952 Tj -0 -218.347 Td -(1070 movw %ax, %gs # -> GS) 200.952 Tj -0 -227.841 Td -(1071 movw %ax, %ss # -> SS: Stack Segment) 266.479 Tj +0 -189.8672 Td +(1067 movw %ax, %ds # -> DS: Data Segment) 262.1109 Tj +0 -199.3606 Td +(1068 movw %ax, %es # -> ES: Extra Segment) 266.4794 Tj +0 -208.8539 Td +(1069 movw %ax, %fs # -> FS) 200.9517 Tj +0 -218.3473 Td +(1070 movw %ax, %gs # -> GS) 200.9517 Tj +0 -227.8407 Td +(1071 movw %ax, %ss # -> SS: Stack Segment) 266.4794 Tj 0 -237.334 Td (1072 ) 21.8426 Tj -0 -246.827 Td -(1073 movl start-4, %esp) 122.318 Tj -0 -256.321 Td -(1074 movl start-8, %eax) 122.318 Tj -0 -265.814 Td +0 -246.8274 Td +(1073 movl start-4, %esp) 122.3184 Tj +0 -256.3207 Td +(1074 movl start-8, %eax) 122.3184 Tj +0 -265.8141 Td (1075 jmp *%eax) 87.3703 Tj -0 -275.307 Td +0 -275.3075 Td (1076 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (1077 # Bootstrap GDT) 87.3703 Tj -0 -294.294 Td +0 -294.2942 Td (1078 .p2align 2 # force 4 byte a\ -lignment) 310.165 Tj -0 -303.788 Td +lignment) 310.1645 Tj +0 -303.7875 Td (1079 gdt:) 39.3166 Tj -0 -313.281 Td -(1080 SEG_NULLASM # null seg) 249.005 Tj -0 -322.774 Td -(1081 SEG_ASM\(STA_X|STA_R, 0x0, 0xffffffff\) # code seg) 249.005 Tj -0 -332.268 Td -(1082 SEG_ASM\(STA_W, 0x0, 0xffffffff\) # data seg) 249.005 Tj +0 -313.2809 Td +(1080 SEG_NULLASM # null seg) 249.0053 Tj +0 -322.7743 Td +(1081 SEG_ASM\(STA_X|STA_R, 0x0, 0xffffffff\) # code seg) 249.0053 Tj +0 -332.2676 Td +(1082 SEG_ASM\(STA_W, 0x0, 0xffffffff\) # data seg) 249.0053 Tj 0 -341.761 Td (1083 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (1084 gdtdesc:) 56.7907 Tj -0 -360.748 Td +0 -360.7477 Td (1085 .word 0x17 # sizeof\(gdt\) \ -- 1) 279.585 Tj -0 -370.241 Td -(1086 .long gdt # address gdt) 262.111 Tj -0 -379.734 Td +- 1) 279.5849 Tj +0 -370.2411 Td +(1086 .long gdt # address gdt) 262.1109 Tj +0 -379.7344 Td (1087 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (1088 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (1089 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (1090 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (1091 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (1092 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (1093 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (1094 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1095 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1096 ) 21.8426 Tj 0 -474.668 Td (1097 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1098 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1099 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 10) 34.9481 Tj Q Q @@ -6613,8 +6643,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -6629,115 +6658,114 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bootmain.c Page 1) 179.109 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/bootmain.c Page 1) 179.1091 Tj 0 -28.4801 Td (1100 // Boot loader.) 87.3703 Tj 0 -37.9735 Td (1101 //) 30.5796 Tj 0 -47.4668 Td -(1102 // The BIOS loads boot sector \(bootasm.S\) from sector 0 \ -of the disk) 314.533 Tj +(1102 // Part of the boot sector, along with bootasm.S, which ca\ +lls bootmain\(\).) 340.7441 Tj 0 -56.9602 Td -(1103 // into memory and executes it. The boot sector puts the \ -processor) 314.533 Tj +(1103 // bootasm.S has put the processor into protected 32-bit m\ +ode.) 292.6905 Tj 0 -66.4535 Td -(1104 // in 32-bit mode and calls bootmain below, which loads an\ - ELF kernel) 323.27 Tj +(1104 // bootmain\(\) loads an ELF kernel image from the disk st\ +arting at) 305.796 Tj 0 -75.9469 Td -(1105 // image from the disk starting at sector 1 and then jumps\ - to the) 305.796 Tj +(1105 // sector 1 and then jumps to the kernel entry routine.) 262.1109 Tj 0 -85.4403 Td -(1106 // kernel entry routine.) 126.687 Tj +(1106 ) 21.8426 Tj 0 -94.9336 Td -(1107 ) 21.8426 Tj +(1107 #include "types.h") 100.4758 Tj 0 -104.427 Td -(1108 #include "types.h") 100.476 Tj -0 -113.92 Td -(1109 #include "elf.h") 91.7388 Tj -0 -123.414 Td -(1110 #include "x86.h") 91.7388 Tj -0 -132.907 Td -(1111 ) 21.8426 Tj -0 -142.4 Td -(1112 #define SECTSIZE 512) 113.581 Tj -0 -151.894 Td -(1113 ) 21.8426 Tj -0 -161.387 Td -(1114 void readseg\(uint, uint, uint\);) 157.267 Tj -0 -170.88 Td -(1115 ) 21.8426 Tj -0 -180.374 Td -(1116 void) 39.3166 Tj -0 -189.867 Td -(1117 bootmain\(void\)) 83.0018 Tj -0 -199.361 Td -(1118 {) 26.2111 Tj -0 -208.854 Td -(1119 struct elfhdr *elf;) 113.581 Tj -0 -218.347 Td -(1120 struct proghdr *ph, *eph;) 139.792 Tj -0 -227.841 Td -(1121 void \(*entry\)\(void\);) 117.95 Tj +(1108 #include "elf.h") 91.7388 Tj +0 -113.9203 Td +(1109 #include "x86.h") 91.7388 Tj +0 -123.4137 Td +(1110 ) 21.8426 Tj +0 -132.9071 Td +(1111 #define SECTSIZE 512) 113.5814 Tj +0 -142.4004 Td +(1112 ) 21.8426 Tj +0 -151.8938 Td +(1113 void readseg\(uint, uint, uint\);) 157.2665 Tj +0 -161.3871 Td +(1114 ) 21.8426 Tj +0 -170.8805 Td +(1115 void) 39.3166 Tj +0 -180.3739 Td +(1116 bootmain\(void\)) 83.0018 Tj +0 -189.8672 Td +(1117 {) 26.2111 Tj +0 -199.3606 Td +(1118 struct elfhdr *elf;) 113.5814 Tj +0 -208.8539 Td +(1119 struct proghdr *ph, *eph;) 139.7925 Tj +0 -218.3473 Td +(1120 void \(*entry\)\(void\);) 117.9499 Tj +0 -227.8407 Td +(1121 ) 21.8426 Tj 0 -237.334 Td -(1122 ) 21.8426 Tj -0 -246.827 Td -(1123 elf = \(struct elfhdr*\)0x10000; // scratch space) 240.268 Tj -0 -256.321 Td -(1124 ) 21.8426 Tj -0 -265.814 Td -(1125 // Read 1st page off disk) 139.792 Tj -0 -275.307 Td -(1126 readseg\(\(uint\)elf, SECTSIZE*8, 0\);) 179.109 Tj -0 -284.801 Td -(1127 ) 21.8426 Tj -0 -294.294 Td -(1128 // Is this an ELF executable?) 157.267 Tj -0 -303.788 Td -(1129 if\(elf->magic != ELF_MAGIC\)) 148.529 Tj -0 -313.281 Td -(1130 goto bad;) 78.6333 Tj -0 -322.774 Td -(1131 ) 21.8426 Tj -0 -332.268 Td -(1132 // Load each program segment \(ignores ph flags\).) 240.268 Tj +(1122 elf = \(struct elfhdr*\)0x10000; // scratch space) 240.2683 Tj +0 -246.8274 Td +(1123 ) 21.8426 Tj +0 -256.3207 Td +(1124 // Read 1st page off disk) 139.7925 Tj +0 -265.8141 Td +(1125 readseg\(\(uint\)elf, SECTSIZE*8, 0\);) 179.1091 Tj +0 -275.3075 Td +(1126 ) 21.8426 Tj +0 -284.8008 Td +(1127 // Is this an ELF executable?) 157.2665 Tj +0 -294.2942 Td +(1128 if\(elf->magic != ELF_MAGIC\)) 148.5295 Tj +0 -303.7875 Td +(1129 goto bad;) 78.6333 Tj +0 -313.2809 Td +(1130 ) 21.8426 Tj +0 -322.7743 Td +(1131 // Load each program segment \(ignores ph flags\).) 240.2683 Tj +0 -332.2676 Td +(1132 ph = \(struct proghdr*\)\(\(uchar*\)elf + elf->phoff\);) 244.6368 Tj 0 -341.761 Td -(1133 ph = \(struct proghdr*\)\(\(uchar*\)elf + elf->phoff\);) 244.637 Tj -0 -351.254 Td -(1134 eph = ph + elf->phnum;) 126.687 Tj -0 -360.748 Td -(1135 for\(; ph < eph; ph++\)) 122.318 Tj -0 -370.241 Td -(1136 readseg\(ph->va, ph->memsz, ph->offset\);) 209.689 Tj -0 -379.734 Td -(1137 ) 21.8426 Tj -0 -389.228 Td -(1138 // Call the entry point from the ELF header.) 222.794 Tj -0 -398.721 Td -(1139 // Does not return!) 113.581 Tj -0 -408.214 Td -(1140 entry = \(void\(*\)\(void\)\)\(elf->entry & 0xFFFFFF\);) 235.9 Tj -0 -417.708 Td -(1141 entry\(\);) 65.5277 Tj -0 -427.201 Td -(1142 ) 21.8426 Tj -0 -436.695 Td -(1143 bad:) 39.3166 Tj -0 -446.188 Td -(1144 outw\(0x8A00, 0x8A00\);) 122.318 Tj -0 -455.681 Td -(1145 outw\(0x8A00, 0x8E00\);) 122.318 Tj -0 -465.175 Td -(1146 for\(;;\)) 61.1592 Tj +(1133 eph = ph + elf->phnum;) 126.6869 Tj +0 -351.2543 Td +(1134 for\(; ph < eph; ph++\)) 122.3184 Tj +0 -360.7477 Td +(1135 readseg\(ph->va & 0xFFFFFF, ph->memsz, ph->offset\);) 257.7424 Tj +0 -370.2411 Td +(1136 ) 21.8426 Tj +0 -379.7344 Td +(1137 // Call the entry point from the ELF header.) 222.7942 Tj +0 -389.2278 Td +(1138 // Does not return!) 113.5814 Tj +0 -398.7211 Td +(1139 entry = \(void\(*\)\(void\)\)\(elf->entry & 0xFFFFFF\);) 235.8998 Tj +0 -408.2145 Td +(1140 entry\(\);) 65.5277 Tj +0 -417.7079 Td +(1141 ) 21.8426 Tj +0 -427.2012 Td +(1142 bad:) 39.3166 Tj +0 -436.6946 Td +(1143 outw\(0x8A00, 0x8A00\);) 122.3184 Tj +0 -446.1879 Td +(1144 outw\(0x8A00, 0x8E00\);) 122.3184 Tj +0 -455.6813 Td +(1145 for\(;;\)) 61.1592 Tj +0 -465.1747 Td +(1146 ;) 43.6851 Tj 0 -474.668 Td -(1147 ;) 43.6851 Tj -0 -484.161 Td -(1148 }) 26.2111 Tj -0 -493.655 Td +(1147 }) 26.2111 Tj +0 -484.1614 Td +(1148 ) 21.8426 Tj +0 -493.6547 Td (1149 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 11) 34.9481 Tj Q Q @@ -6752,10 +6780,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bootmain.c Page 2) 179.109 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/bootmain.c Page 2) 179.1091 Tj 0 -28.4801 Td (1150 void) 39.3166 Tj 0 -37.9735 Td @@ -6763,9 +6791,9 @@ q 0 -47.4668 Td (1152 {) 26.2111 Tj 0 -56.9602 Td -(1153 // Wait for disk ready.) 131.055 Tj +(1153 // Wait for disk ready.) 131.0554 Tj 0 -66.4535 Td -(1154 while\(\(inb\(0x1F7\) & 0xC0\) != 0x40\)) 179.109 Tj +(1154 while\(\(inb\(0x1F7\) & 0xC0\) != 0x40\)) 179.1091 Tj 0 -75.9469 Td (1155 ;) 43.6851 Tj 0 -85.4403 Td @@ -6773,94 +6801,94 @@ q 0 -94.9336 Td (1157 ) 21.8426 Tj 0 -104.427 Td -(1158 // Read a single sector at offset into dst.) 209.689 Tj -0 -113.92 Td +(1158 // Read a single sector at offset into dst.) 209.6887 Tj +0 -113.9203 Td (1159 void) 39.3166 Tj -0 -123.414 Td +0 -123.4137 Td (1160 readsect\(void *dst, uint offset\)) 161.635 Tj -0 -132.907 Td +0 -132.9071 Td (1161 {) 26.2111 Tj -0 -142.4 Td -(1162 // Issue command.) 104.844 Tj -0 -151.894 Td +0 -142.4004 Td +(1162 // Issue command.) 104.8443 Tj +0 -151.8938 Td (1163 waitdisk\(\);) 78.6333 Tj -0 -161.387 Td +0 -161.3871 Td (1164 outb\(0x1F2, 1\); // count = 1) 161.635 Tj -0 -170.88 Td -(1165 outb\(0x1F3, offset\);) 117.95 Tj -0 -180.374 Td -(1166 outb\(0x1F4, offset >> 8\);) 139.792 Tj -0 -189.867 Td +0 -170.8805 Td +(1165 outb\(0x1F3, offset\);) 117.9499 Tj +0 -180.3739 Td +(1166 outb\(0x1F4, offset >> 8\);) 139.7925 Tj +0 -189.8672 Td (1167 outb\(0x1F5, offset >> 16\);) 144.161 Tj -0 -199.361 Td -(1168 outb\(0x1F6, \(offset >> 24\) | 0xE0\);) 183.478 Tj -0 -208.854 Td -(1169 outb\(0x1F7, 0x20\); // cmd 0x20 - read sectors) 231.531 Tj -0 -218.347 Td +0 -199.3606 Td +(1168 outb\(0x1F6, \(offset >> 24\) | 0xE0\);) 183.4776 Tj +0 -208.8539 Td +(1169 outb\(0x1F7, 0x20\); // cmd 0x20 - read sectors) 231.5313 Tj +0 -218.3473 Td (1170 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (1171 // Read data.) 87.3703 Tj 0 -237.334 Td (1172 waitdisk\(\);) 78.6333 Tj -0 -246.827 Td -(1173 insl\(0x1F0, dst, SECTSIZE/4\);) 157.267 Tj -0 -256.321 Td +0 -246.8274 Td +(1173 insl\(0x1F0, dst, SECTSIZE/4\);) 157.2665 Tj +0 -256.3207 Td (1174 }) 26.2111 Tj -0 -265.814 Td +0 -265.8141 Td (1175 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (1176 // Read 'count' bytes at 'offset' from kernel into virtual\ - address 'va'.) 336.376 Tj -0 -284.801 Td + address 'va'.) 336.3756 Tj +0 -284.8008 Td (1177 // Might copy more than asked.) 152.898 Tj -0 -294.294 Td +0 -294.2942 Td (1178 void) 39.3166 Tj -0 -303.788 Td -(1179 readseg\(uint va, uint count, uint offset\)) 200.952 Tj -0 -313.281 Td +0 -303.7875 Td +(1179 readseg\(uint va, uint count, uint offset\)) 200.9517 Tj +0 -313.2809 Td (1180 {) 26.2111 Tj -0 -322.774 Td +0 -322.7743 Td (1181 uint eva;) 69.8962 Tj -0 -332.268 Td +0 -332.2676 Td (1182 ) 21.8426 Tj 0 -341.761 Td -(1183 va &= 0xFFFFFF;) 96.1073 Tj -0 -351.254 Td -(1184 eva = va + count;) 104.844 Tj -0 -360.748 Td -(1185 ) 21.8426 Tj -0 -370.241 Td -(1186 // Round down to sector boundary.) 174.741 Tj -0 -379.734 Td -(1187 va &= ~\(SECTSIZE - 1\);) 126.687 Tj -0 -389.228 Td -(1188 ) 21.8426 Tj -0 -398.721 Td -(1189 // Translate from bytes to sectors; kernel starts at sec\ -tor 1.) 301.427 Tj -0 -408.214 Td -(1190 offset = \(offset / SECTSIZE\) + 1;) 174.741 Tj -0 -417.708 Td -(1191 ) 21.8426 Tj -0 -427.201 Td -(1192 // If this is too slow, we could read lots of sectors at\ - a time.) 310.165 Tj -0 -436.695 Td -(1193 // We'd write more to memory than asked, but it doesn't \ +(1183 eva = va + count;) 104.8443 Tj +0 -351.2543 Td +(1184 ) 21.8426 Tj +0 -360.7477 Td +(1185 // Round down to sector boundary.) 174.7406 Tj +0 -370.2411 Td +(1186 va &= ~\(SECTSIZE - 1\);) 126.6869 Tj +0 -379.7344 Td +(1187 ) 21.8426 Tj +0 -389.2278 Td +(1188 // Translate from bytes to sectors; kernel starts at sec\ +tor 1.) 301.4275 Tj +0 -398.7211 Td +(1189 offset = \(offset / SECTSIZE\) + 1;) 174.7406 Tj +0 -408.2145 Td +(1190 ) 21.8426 Tj +0 -417.7079 Td +(1191 // If this is too slow, we could read lots of sectors at\ + a time.) 310.1645 Tj +0 -427.2012 Td +(1192 // We'd write more to memory than asked, but it doesn't \ matter --) 314.533 Tj -0 -446.188 Td -(1194 // we load in increasing order.) 166.004 Tj -0 -455.681 Td -(1195 for\(; va < eva; va += SECTSIZE, offset++\)) 209.689 Tj -0 -465.175 Td -(1196 readsect\(\(uchar*\)va, offset\);) 166.004 Tj +0 -436.6946 Td +(1193 // we load in increasing order.) 166.0035 Tj +0 -446.1879 Td +(1194 for\(; va < eva; va += SECTSIZE, offset++\)) 209.6887 Tj +0 -455.6813 Td +(1195 readsect\(\(uchar*\)va, offset\);) 166.0035 Tj +0 -465.1747 Td +(1196 }) 26.2111 Tj 0 -474.668 Td -(1197 }) 26.2111 Tj -0 -484.161 Td +(1197 ) 21.8426 Tj +0 -484.1614 Td (1198 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1199 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 11) 34.9481 Tj Q Q @@ -6889,8 +6917,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -6905,16 +6932,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/main.c Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/main.c Page 1) 161.635 Tj 0 -28.4801 Td -(1200 #include "types.h") 100.476 Tj +(1200 #include "types.h") 100.4758 Tj 0 -37.9735 Td (1201 #include "defs.h") 96.1073 Tj 0 -47.4668 Td -(1202 #include "param.h") 100.476 Tj +(1202 #include "param.h") 100.4758 Tj 0 -56.9602 Td (1203 #include "mmu.h") 91.7388 Tj 0 -66.4535 Td @@ -6924,94 +6951,92 @@ q 0 -85.4403 Td (1206 ) 21.8426 Tj 0 -94.9336 Td -(1207 static void bootothers\(void\);) 148.529 Tj +(1207 static void bootothers\(void\);) 148.5295 Tj 0 -104.427 Td -(1208 ) 21.8426 Tj -0 -113.92 Td -(1209 // Bootstrap processor starts running C code here.) 240.268 Tj -0 -123.414 Td -(1210 int) 34.9481 Tj -0 -132.907 Td -(1211 main\(void\)) 65.5277 Tj -0 -142.4 Td -(1212 {) 26.2111 Tj -0 -151.894 Td -(1213 int i;) 56.7907 Tj -0 -161.387 Td -(1214 static volatile int bcpu; // cannot be on stack) 240.268 Tj -0 -170.88 Td -(1215 extern char edata[], end[];) 148.529 Tj -0 -180.374 Td -(1216 ) 21.8426 Tj -0 -189.867 Td -(1217 // clear BSS) 83.0018 Tj -0 -199.361 Td -(1218 memset\(edata, 0, end - edata\);) 161.635 Tj -0 -208.854 Td -(1219 ) 21.8426 Tj -0 -218.347 Td -(1220 // Prevent release\(\) from enabling interrupts.) 231.531 Tj -0 -227.841 Td -(1221 for\(i=0; impstack + MPSTACK;) 218.426 Tj -0 -427.201 Td -(1292 *\(void**\)\(code-8\) = mpmain;) 157.267 Tj -0 -436.695 Td -(1293 lapic_startap\(c->apicid, \(uint\)code\);) 200.952 Tj -0 -446.188 Td +(1283 stack = kalloc\(KSTACKSIZE\);) 157.2665 Tj +0 -351.2543 Td +(1284 *\(void**\)\(code-4\) = stack + KSTACKSIZE;) 209.6887 Tj +0 -360.7477 Td +(1285 *\(void**\)\(code-8\) = mpmain;) 157.2665 Tj +0 -370.2411 Td +(1286 lapic_startap\(c->apicid, \(uint\)code\);) 200.9517 Tj +0 -379.7344 Td +(1287 ) 21.8426 Tj +0 -389.2278 Td +(1288 // Wait for cpu to get through bootstrap.) 218.4257 Tj +0 -398.7211 Td +(1289 while\(c->booted == 0\)) 131.0554 Tj +0 -408.2145 Td +(1290 ;) 52.4222 Tj +0 -417.7079 Td +(1291 }) 34.9481 Tj +0 -427.2012 Td +(1292 }) 26.2111 Tj +0 -436.6946 Td +(1293 ) 21.8426 Tj +0 -446.1879 Td (1294 ) 21.8426 Tj -0 -455.681 Td -(1295 // Wait for cpu to get through bootstrap.) 218.426 Tj -0 -465.175 Td -(1296 while\(c->booted == 0\)) 131.055 Tj +0 -455.6813 Td +(1295 ) 21.8426 Tj +0 -465.1747 Td +(1296 ) 21.8426 Tj 0 -474.668 Td -(1297 ;) 52.4222 Tj -0 -484.161 Td -(1298 }) 34.9481 Tj -0 -493.655 Td -(1299 }) 26.2111 Tj -0 -522.135 Td +(1297 ) 21.8426 Tj +0 -484.1614 Td +(1298 ) 21.8426 Tj +0 -493.6547 Td +(1299 ) 21.8426 Tj +0 -522.1348 Td (Sheet 12) 34.9481 Tj Q Q @@ -7161,8 +7187,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -7177,113 +7202,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/spinlock.h Page 1) 179.109 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/spinlock.h Page 1) 179.1091 Tj 0 -28.4801 Td -(1300 // Mutual exclusion lock.) 131.055 Tj +(1300 // Mutual exclusion lock.) 131.0554 Tj 0 -37.9735 Td (1301 struct spinlock {) 96.1073 Tj 0 -47.4668 Td -(1302 uint locked; // Is the lock held?) 183.478 Tj +(1302 uint locked; // Is the lock held?) 183.4776 Tj 0 -56.9602 Td (1303 ) 21.8426 Tj 0 -66.4535 Td -(1304 // For debugging:) 104.844 Tj +(1304 // For debugging:) 104.8443 Tj 0 -75.9469 Td -(1305 char *name; // Name of lock.) 166.004 Tj +(1305 char *name; // Name of lock.) 166.0035 Tj 0 -85.4403 Td (1306 int cpu; // The number of the cpu holding the lock\ -.) 279.585 Tj +.) 279.5849 Tj 0 -94.9336 Td (1307 uint pcs[10]; // The call stack \(an array of program c\ ounters\)) 305.796 Tj 0 -104.427 Td -(1308 // that locked the lock.) 200.952 Tj -0 -113.92 Td +(1308 // that locked the lock.) 200.9517 Tj +0 -113.9203 Td (1309 };) 30.5796 Tj -0 -123.414 Td +0 -123.4137 Td (1310 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (1311 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (1312 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (1313 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (1314 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (1315 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (1316 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (1317 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (1318 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (1319 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (1320 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (1321 ) 21.8426 Tj 0 -237.334 Td (1322 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (1323 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (1324 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (1325 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (1326 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (1327 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (1328 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (1329 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (1330 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (1331 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (1332 ) 21.8426 Tj 0 -341.761 Td (1333 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (1334 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (1335 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (1336 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (1337 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (1338 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (1339 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (1340 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (1341 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (1342 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (1343 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (1344 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1345 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1346 ) 21.8426 Tj 0 -474.668 Td (1347 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1348 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1349 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 13) 34.9481 Tj Q Q @@ -7298,111 +7323,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/spinlock.h Page 2) 179.109 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/spinlock.c Page 1) 179.1091 Tj 0 -28.4801 Td -(1350 // Blank page.) 83.0018 Tj +(1350 // Mutual exclusion spin locks.) 157.2665 Tj 0 -37.9735 Td (1351 ) 21.8426 Tj 0 -47.4668 Td -(1352 ) 21.8426 Tj +(1352 #include "types.h") 100.4758 Tj 0 -56.9602 Td -(1353 ) 21.8426 Tj +(1353 #include "defs.h") 96.1073 Tj 0 -66.4535 Td -(1354 ) 21.8426 Tj +(1354 #include "param.h") 100.4758 Tj 0 -75.9469 Td -(1355 ) 21.8426 Tj +(1355 #include "x86.h") 91.7388 Tj 0 -85.4403 Td -(1356 ) 21.8426 Tj +(1356 #include "mmu.h") 91.7388 Tj 0 -94.9336 Td -(1357 ) 21.8426 Tj +(1357 #include "proc.h") 96.1073 Tj 0 -104.427 Td -(1358 ) 21.8426 Tj -0 -113.92 Td +(1358 #include "spinlock.h") 113.5814 Tj +0 -113.9203 Td (1359 ) 21.8426 Tj -0 -123.414 Td -(1360 ) 21.8426 Tj -0 -132.907 Td +0 -123.4137 Td +(1360 extern int use_console_lock;) 144.161 Tj +0 -132.9071 Td (1361 ) 21.8426 Tj -0 -142.4 Td -(1362 ) 21.8426 Tj -0 -151.894 Td -(1363 ) 21.8426 Tj -0 -161.387 Td -(1364 ) 21.8426 Tj -0 -170.88 Td -(1365 ) 21.8426 Tj -0 -180.374 Td -(1366 ) 21.8426 Tj -0 -189.867 Td -(1367 ) 21.8426 Tj -0 -199.361 Td -(1368 ) 21.8426 Tj -0 -208.854 Td +0 -142.4004 Td +(1362 void) 39.3166 Tj +0 -151.8938 Td +(1363 initlock\(struct spinlock *lock, char *name\)) 209.6887 Tj +0 -161.3871 Td +(1364 {) 26.2111 Tj +0 -170.8805 Td +(1365 lock->name = name;) 109.2129 Tj +0 -180.3739 Td +(1366 lock->locked = 0;) 104.8443 Tj +0 -189.8672 Td +(1367 lock->cpu = 0xffffffff;) 131.0554 Tj +0 -199.3606 Td +(1368 }) 26.2111 Tj +0 -208.8539 Td (1369 ) 21.8426 Tj -0 -218.347 Td -(1370 ) 21.8426 Tj -0 -227.841 Td -(1371 ) 21.8426 Tj +0 -218.3473 Td +(1370 // Acquire the lock.) 109.2129 Tj +0 -227.8407 Td +(1371 // Loops \(spins\) until the lock is acquired.) 214.0572 Tj 0 -237.334 Td -(1372 ) 21.8426 Tj -0 -246.827 Td -(1373 ) 21.8426 Tj -0 -256.321 Td -(1374 ) 21.8426 Tj -0 -265.814 Td -(1375 ) 21.8426 Tj -0 -275.307 Td -(1376 ) 21.8426 Tj -0 -284.801 Td -(1377 ) 21.8426 Tj -0 -294.294 Td -(1378 ) 21.8426 Tj -0 -303.788 Td -(1379 ) 21.8426 Tj -0 -313.281 Td +(1372 // Holding a lock for a long time may cause) 209.6887 Tj +0 -246.8274 Td +(1373 // other CPUs to waste time spinning to acquire it.) 244.6368 Tj +0 -256.3207 Td +(1374 void) 39.3166 Tj +0 -265.8141 Td +(1375 acquire\(struct spinlock *lock\)) 152.898 Tj +0 -275.3075 Td +(1376 {) 26.2111 Tj +0 -284.8008 Td +(1377 pushcli\(\);) 74.2647 Tj +0 -294.2942 Td +(1378 if\(holding\(lock\)\)) 104.8443 Tj +0 -303.7875 Td +(1379 panic\("acquire"\);) 113.5814 Tj +0 -313.2809 Td (1380 ) 21.8426 Tj -0 -322.774 Td -(1381 ) 21.8426 Tj -0 -332.268 Td -(1382 ) 21.8426 Tj +0 -322.7743 Td +(1381 // The xchg is atomic.) 126.6869 Tj +0 -332.2676 Td +(1382 // It also serializes, so that reads after acquire are n\ +ot) 283.9534 Tj 0 -341.761 Td -(1383 ) 21.8426 Tj -0 -351.254 Td -(1384 ) 21.8426 Tj -0 -360.748 Td -(1385 ) 21.8426 Tj -0 -370.241 Td +(1383 // reordered before it.) 131.0554 Tj +0 -351.2543 Td +(1384 while\(xchg\(&lock->locked, 1\) == 1\)) 179.1091 Tj +0 -360.7477 Td +(1385 ;) 43.6851 Tj +0 -370.2411 Td (1386 ) 21.8426 Tj -0 -379.734 Td -(1387 ) 21.8426 Tj -0 -389.228 Td -(1388 ) 21.8426 Tj -0 -398.721 Td -(1389 ) 21.8426 Tj -0 -408.214 Td -(1390 ) 21.8426 Tj -0 -417.708 Td -(1391 ) 21.8426 Tj -0 -427.201 Td -(1392 ) 21.8426 Tj -0 -436.695 Td -(1393 ) 21.8426 Tj -0 -446.188 Td +0 -379.7344 Td +(1387 // Record info about lock acquisition for debugging.) 257.7424 Tj +0 -389.2278 Td +(1388 // The +10 is only so that we can tell the difference) 262.1109 Tj +0 -398.7211 Td +(1389 // between forgetting to initialize lock->cpu) 227.1628 Tj +0 -408.2145 Td +(1390 // and holding a lock on cpu 0.) 166.0035 Tj +0 -417.7079 Td +(1391 lock->cpu = cpu\(\) + 10;) 131.0554 Tj +0 -427.2012 Td +(1392 getcallerpcs\(&lock, lock->pcs\);) 166.0035 Tj +0 -436.6946 Td +(1393 }) 26.2111 Tj +0 -446.1879 Td (1394 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1395 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1396 ) 21.8426 Tj 0 -474.668 Td (1397 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1398 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1399 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 13) 34.9481 Tj Q Q @@ -7431,8 +7457,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -7447,113 +7472,114 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/spinlock.c Page 1) 179.109 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/spinlock.c Page 2) 179.1091 Tj 0 -28.4801 Td -(1400 // Mutual exclusion spin locks.) 157.267 Tj +(1400 // Release the lock.) 109.2129 Tj 0 -37.9735 Td -(1401 ) 21.8426 Tj +(1401 void) 39.3166 Tj 0 -47.4668 Td -(1402 #include "types.h") 100.476 Tj +(1402 release\(struct spinlock *lock\)) 152.898 Tj 0 -56.9602 Td -(1403 #include "defs.h") 96.1073 Tj +(1403 {) 26.2111 Tj 0 -66.4535 Td -(1404 #include "param.h") 100.476 Tj +(1404 if\(!holding\(lock\)\)) 109.2129 Tj 0 -75.9469 Td -(1405 #include "x86.h") 91.7388 Tj +(1405 panic\("release"\);) 113.5814 Tj 0 -85.4403 Td -(1406 #include "mmu.h") 91.7388 Tj +(1406 ) 21.8426 Tj 0 -94.9336 Td -(1407 #include "proc.h") 96.1073 Tj +(1407 lock->pcs[0] = 0;) 104.8443 Tj 0 -104.427 Td -(1408 #include "spinlock.h") 113.581 Tj -0 -113.92 Td +(1408 lock->cpu = 0xffffffff;) 131.0554 Tj +0 -113.9203 Td (1409 ) 21.8426 Tj -0 -123.414 Td -(1410 extern int use_console_lock;) 144.161 Tj -0 -132.907 Td -(1411 ) 21.8426 Tj -0 -142.4 Td -(1412 void) 39.3166 Tj -0 -151.894 Td -(1413 initlock\(struct spinlock *lock, char *name\)) 209.689 Tj -0 -161.387 Td -(1414 {) 26.2111 Tj -0 -170.88 Td -(1415 lock->name = name;) 109.213 Tj -0 -180.374 Td -(1416 lock->locked = 0;) 104.844 Tj -0 -189.867 Td -(1417 lock->cpu = 0xffffffff;) 131.055 Tj -0 -199.361 Td +0 -123.4137 Td +(1410 // The xchg serializes, so that reads before release are) 275.2164 Tj +0 -132.9071 Td +(1411 // not reordered after it. \(This reordering would be a\ +llowed) 297.059 Tj +0 -142.4004 Td +(1412 // by the Intel manuals, but does not happen on current) 270.8479 Tj +0 -151.8938 Td +(1413 // Intel processors. The xchg being asm volatile also k\ +eeps) 292.6905 Tj +0 -161.3871 Td +(1414 // gcc from delaying the above assignments.\)) 222.7942 Tj +0 -170.8805 Td +(1415 xchg\(&lock->locked, 0\);) 131.0554 Tj +0 -180.3739 Td +(1416 ) 21.8426 Tj +0 -189.8672 Td +(1417 popcli\(\);) 69.8962 Tj +0 -199.3606 Td (1418 }) 26.2111 Tj -0 -208.854 Td +0 -208.8539 Td (1419 ) 21.8426 Tj -0 -218.347 Td -(1420 // Acquire the lock.) 109.213 Tj -0 -227.841 Td -(1421 // Loops \(spins\) until the lock is acquired.) 214.057 Tj +0 -218.3473 Td +(1420 // Record the current call stack in pcs[] by following the\ + %ebp chain.) 327.6386 Tj +0 -227.8407 Td +(1421 void) 39.3166 Tj 0 -237.334 Td -(1422 // \(Because contention is handled by spinning,) 222.794 Tj -0 -246.827 Td -(1423 // must not go to sleep holding any locks.\)) 209.689 Tj -0 -256.321 Td -(1424 void) 39.3166 Tj -0 -265.814 Td -(1425 acquire\(struct spinlock *lock\)) 152.898 Tj -0 -275.307 Td -(1426 {) 26.2111 Tj -0 -284.801 Td -(1427 if\(holding\(lock\)\)) 104.844 Tj -0 -294.294 Td -(1428 panic\("acquire"\);) 113.581 Tj -0 -303.788 Td -(1429 ) 21.8426 Tj -0 -313.281 Td -(1430 if\(cpus[cpu\(\)].nlock == 0\)) 144.161 Tj -0 -322.774 Td -(1431 cli\(\);) 65.5277 Tj -0 -332.268 Td -(1432 cpus[cpu\(\)].nlock++;) 117.95 Tj +(1422 getcallerpcs\(void *v, uint pcs[]\)) 166.0035 Tj +0 -246.8274 Td +(1423 {) 26.2111 Tj +0 -256.3207 Td +(1424 uint *ebp;) 74.2647 Tj +0 -265.8141 Td +(1425 int i;) 56.7907 Tj +0 -275.3075 Td +(1426 ) 21.8426 Tj +0 -284.8008 Td +(1427 ebp = \(uint*\)v - 2;) 113.5814 Tj +0 -294.2942 Td +(1428 for\(i = 0; i < 10; i++\){) 135.4239 Tj +0 -303.7875 Td +(1429 if\(ebp == 0 || ebp == \(uint*\)0xffffffff\)) 214.0572 Tj +0 -313.2809 Td +(1430 break;) 74.2647 Tj +0 -322.7743 Td +(1431 pcs[i] = ebp[1]; // saved %eip) 187.8461 Tj +0 -332.2676 Td +(1432 ebp = \(uint*\)ebp[0]; // saved %ebp) 187.8461 Tj 0 -341.761 Td -(1433 ) 21.8426 Tj -0 -351.254 Td -(1434 while\(cmpxchg\(0, 1, &lock->locked\) == 1\)) 205.32 Tj -0 -360.748 Td -(1435 ;) 43.6851 Tj -0 -370.241 Td -(1436 ) 21.8426 Tj -0 -379.734 Td -(1437 // Serialize instructions: now that lock is acquired, ma\ -ke sure) 305.796 Tj -0 -389.228 Td -(1438 // we wait for all pending writes from other processors.) 275.216 Tj -0 -398.721 Td -(1439 cpuid\(0, 0, 0, 0, 0\); // memory barrier \(see Ch 7, I\ -A-32 manual vol 3\)) 340.744 Tj -0 -408.214 Td -(1440 ) 21.8426 Tj -0 -417.708 Td -(1441 // Record info about lock acquisition for debugging.) 257.742 Tj -0 -427.201 Td -(1442 // The +10 is only so that we can tell the difference) 262.111 Tj -0 -436.695 Td -(1443 // between forgetting to initialize lock->cpu) 227.163 Tj -0 -446.188 Td -(1444 // and holding a lock on cpu 0.) 166.004 Tj -0 -455.681 Td -(1445 lock->cpu = cpu\(\) + 10;) 131.055 Tj -0 -465.175 Td -(1446 getcallerpcs\(&lock, lock->pcs\);) 166.004 Tj +(1433 }) 34.9481 Tj +0 -351.2543 Td +(1434 for\(; i < 10; i++\)) 109.2129 Tj +0 -360.7477 Td +(1435 pcs[i] = 0;) 87.3703 Tj +0 -370.2411 Td +(1436 }) 26.2111 Tj +0 -379.7344 Td +(1437 ) 21.8426 Tj +0 -389.2278 Td +(1438 // Check whether this cpu is holding the lock.) 222.7942 Tj +0 -398.7211 Td +(1439 int) 34.9481 Tj +0 -408.2145 Td +(1440 holding\(struct spinlock *lock\)) 152.898 Tj +0 -417.7079 Td +(1441 {) 26.2111 Tj +0 -427.2012 Td +(1442 return lock->locked && lock->cpu == cpu\(\) + 10;) 235.8998 Tj +0 -436.6946 Td +(1443 }) 26.2111 Tj +0 -446.1879 Td +(1444 ) 21.8426 Tj +0 -455.6813 Td +(1445 ) 21.8426 Tj +0 -465.1747 Td +(1446 ) 21.8426 Tj 0 -474.668 Td -(1447 }) 26.2111 Tj -0 -484.161 Td +(1447 ) 21.8426 Tj +0 -484.1614 Td (1448 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1449 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 14) 34.9481 Tj Q Q @@ -7568,115 +7594,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/spinlock.c Page 2) 179.109 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/spinlock.c Page 3) 179.1091 Tj 0 -28.4801 Td -(1450 // Release the lock.) 109.213 Tj +(1450 // Pushcli/popcli are like cli/sti except that they are ma\ +tched:) 301.4275 Tj 0 -37.9735 Td -(1451 void) 39.3166 Tj +(1451 // it takes two popcli to undo two pushcli. Also, if inte\ +rrupts) 301.4275 Tj 0 -47.4668 Td -(1452 release\(struct spinlock *lock\)) 152.898 Tj +(1452 // are off, then pushcli, popcli leaves them off.) 235.8998 Tj 0 -56.9602 Td -(1453 {) 26.2111 Tj +(1453 ) 21.8426 Tj 0 -66.4535 Td -(1454 if\(!holding\(lock\)\)) 109.213 Tj +(1454 void) 39.3166 Tj 0 -75.9469 Td -(1455 panic\("release"\);) 113.581 Tj +(1455 pushcli\(void\)) 78.6333 Tj 0 -85.4403 Td -(1456 ) 21.8426 Tj +(1456 {) 26.2111 Tj 0 -94.9336 Td -(1457 lock->pcs[0] = 0;) 104.844 Tj +(1457 int eflags;) 78.6333 Tj 0 -104.427 Td -(1458 lock->cpu = 0xffffffff;) 131.055 Tj -0 -113.92 Td -(1459 ) 21.8426 Tj -0 -123.414 Td -(1460 // Serialize instructions: before unlocking the lock, ma\ -ke sure) 305.796 Tj -0 -132.907 Td -(1461 // to flush any pending memory writes from this processo\ -r.) 283.953 Tj -0 -142.4 Td -(1462 cpuid\(0, 0, 0, 0, 0\); // memory barrier \(see Ch 7, I\ -A-32 manual vol 3\)) 340.744 Tj -0 -151.894 Td -(1463 ) 21.8426 Tj -0 -161.387 Td -(1464 lock->locked = 0;) 104.844 Tj -0 -170.88 Td -(1465 if\(--cpus[cpu\(\)].nlock == 0\)) 152.898 Tj -0 -180.374 Td -(1466 sti\(\);) 65.5277 Tj -0 -189.867 Td -(1467 }) 26.2111 Tj -0 -199.361 Td -(1468 ) 21.8426 Tj -0 -208.854 Td -(1469 // Record the current call stack in pcs[] by following the\ - %ebp chain.) 327.639 Tj -0 -218.347 Td -(1470 void) 39.3166 Tj -0 -227.841 Td -(1471 getcallerpcs\(void *v, uint pcs[]\)) 166.004 Tj +(1458 ) 21.8426 Tj +0 -113.9203 Td +(1459 eflags = read_eflags\(\);) 131.0554 Tj +0 -123.4137 Td +(1460 cli\(\);) 56.7907 Tj +0 -132.9071 Td +(1461 if\(cpus[cpu\(\)].ncli++ == 0\)) 148.5295 Tj +0 -142.4004 Td +(1462 cpus[cpu\(\)].intena = eflags & FL_IF;) 196.5831 Tj +0 -151.8938 Td +(1463 }) 26.2111 Tj +0 -161.3871 Td +(1464 ) 21.8426 Tj +0 -170.8805 Td +(1465 void) 39.3166 Tj +0 -180.3739 Td +(1466 popcli\(void\)) 74.2647 Tj +0 -189.8672 Td +(1467 {) 26.2111 Tj +0 -199.3606 Td +(1468 if\(read_eflags\(\)&FL_IF\)) 131.0554 Tj +0 -208.8539 Td +(1469 panic\("popcli - interruptible"\);) 179.1091 Tj +0 -218.3473 Td +(1470 if\(--cpus[cpu\(\)].ncli < 0\)) 144.161 Tj +0 -227.8407 Td +(1471 panic\("popcli"\);) 109.2129 Tj 0 -237.334 Td -(1472 {) 26.2111 Tj -0 -246.827 Td -(1473 uint *ebp;) 74.2647 Tj -0 -256.321 Td -(1474 int i;) 56.7907 Tj -0 -265.814 Td +(1472 if\(cpus[cpu\(\)].ncli == 0 && cpus[cpu\(\)].intena\)) 235.8998 Tj +0 -246.8274 Td +(1473 sti\(\);) 65.5277 Tj +0 -256.3207 Td +(1474 }) 26.2111 Tj +0 -265.8141 Td (1475 ) 21.8426 Tj -0 -275.307 Td -(1476 ebp = \(uint*\)v - 2;) 113.581 Tj -0 -284.801 Td -(1477 for\(i = 0; i < 10; i++\){) 135.424 Tj -0 -294.294 Td -(1478 if\(ebp == 0 || ebp == \(uint*\)0xffffffff\)) 214.057 Tj -0 -303.788 Td -(1479 break;) 74.2647 Tj -0 -313.281 Td -(1480 pcs[i] = ebp[1]; // saved %eip) 187.846 Tj -0 -322.774 Td -(1481 ebp = \(uint*\)ebp[0]; // saved %ebp) 187.846 Tj -0 -332.268 Td -(1482 }) 34.9481 Tj +0 -275.3075 Td +(1476 ) 21.8426 Tj +0 -284.8008 Td +(1477 ) 21.8426 Tj +0 -294.2942 Td +(1478 ) 21.8426 Tj +0 -303.7875 Td +(1479 ) 21.8426 Tj +0 -313.2809 Td +(1480 ) 21.8426 Tj +0 -322.7743 Td +(1481 ) 21.8426 Tj +0 -332.2676 Td +(1482 ) 21.8426 Tj 0 -341.761 Td -(1483 for\(; i < 10; i++\)) 109.213 Tj -0 -351.254 Td -(1484 pcs[i] = 0;) 87.3703 Tj -0 -360.748 Td -(1485 }) 26.2111 Tj -0 -370.241 Td +(1483 ) 21.8426 Tj +0 -351.2543 Td +(1484 ) 21.8426 Tj +0 -360.7477 Td +(1485 ) 21.8426 Tj +0 -370.2411 Td (1486 ) 21.8426 Tj -0 -379.734 Td -(1487 // Check whether this cpu is holding the lock.) 222.794 Tj -0 -389.228 Td -(1488 int) 34.9481 Tj -0 -398.721 Td -(1489 holding\(struct spinlock *lock\)) 152.898 Tj -0 -408.214 Td -(1490 {) 26.2111 Tj -0 -417.708 Td -(1491 return lock->locked && lock->cpu == cpu\(\) + 10;) 235.9 Tj -0 -427.201 Td -(1492 }) 26.2111 Tj -0 -436.695 Td +0 -379.7344 Td +(1487 ) 21.8426 Tj +0 -389.2278 Td +(1488 ) 21.8426 Tj +0 -398.7211 Td +(1489 ) 21.8426 Tj +0 -408.2145 Td +(1490 ) 21.8426 Tj +0 -417.7079 Td +(1491 ) 21.8426 Tj +0 -427.2012 Td +(1492 ) 21.8426 Tj +0 -436.6946 Td (1493 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (1494 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1495 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1496 ) 21.8426 Tj 0 -474.668 Td (1497 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1498 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1499 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 14) 34.9481 Tj Q Q @@ -7705,8 +7729,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -7721,119 +7744,119 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.h Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/proc.h Page 1) 161.635 Tj 0 -28.4801 Td -(1500 // Segments in proc->gdt) 126.687 Tj +(1500 // Segments in proc->gdt) 126.6869 Tj 0 -37.9735 Td -(1501 #define SEG_KCODE 1 // kernel code) 174.741 Tj +(1501 #define SEG_KCODE 1 // kernel code) 174.7406 Tj 0 -47.4668 Td -(1502 #define SEG_KDATA 2 // kernel data+stack) 200.952 Tj +(1502 #define SEG_KDATA 2 // kernel data+stack) 200.9517 Tj 0 -56.9602 Td -(1503 #define SEG_UCODE 3) 104.844 Tj +(1503 #define SEG_UCODE 3) 104.8443 Tj 0 -66.4535 Td -(1504 #define SEG_UDATA 4) 104.844 Tj +(1504 #define SEG_UDATA 4) 104.8443 Tj 0 -75.9469 Td -(1505 #define SEG_TSS 5 // this process's task state) 235.9 Tj +(1505 #define SEG_TSS 5 // this process's task state) 235.8998 Tj 0 -85.4403 Td -(1506 #define NSEGS 6) 104.844 Tj +(1506 #define NSEGS 6) 104.8443 Tj 0 -94.9336 Td (1507 ) 21.8426 Tj 0 -104.427 Td -(1508 // Saved registers for kernel context switches.) 227.163 Tj -0 -113.92 Td -(1509 // Don't need to save all the %fs etc. segment registers,) 270.848 Tj -0 -123.414 Td -(1510 // because they are constant across kernel contexts.) 249.005 Tj -0 -132.907 Td -(1511 // Save all the regular registers so we don't need to care) 275.216 Tj -0 -142.4 Td +(1508 // Saved registers for kernel context switches.) 227.1628 Tj +0 -113.9203 Td +(1509 // Don't need to save all the %fs etc. segment registers,) 270.8479 Tj +0 -123.4137 Td +(1510 // because they are constant across kernel contexts.) 249.0053 Tj +0 -132.9071 Td +(1511 // Save all the regular registers so we don't need to care) 275.2164 Tj +0 -142.4004 Td (1512 // which are caller save, but not the return register %eax\ -.) 279.585 Tj -0 -151.894 Td -(1513 // \(Not saving %eax just simplifies the switching code.\)) 266.479 Tj -0 -161.387 Td -(1514 // The layout of context must match code in swtch.S.) 249.005 Tj -0 -170.88 Td +.) 279.5849 Tj +0 -151.8938 Td +(1513 // \(Not saving %eax just simplifies the switching code.\)) 266.4794 Tj +0 -161.3871 Td +(1514 // The layout of context must match code in swtch.S.) 249.0053 Tj +0 -170.8805 Td (1515 struct context {) 91.7388 Tj -0 -180.374 Td +0 -180.3739 Td (1516 int eip;) 65.5277 Tj -0 -189.867 Td +0 -189.8672 Td (1517 int esp;) 65.5277 Tj -0 -199.361 Td +0 -199.3606 Td (1518 int ebx;) 65.5277 Tj -0 -208.854 Td +0 -208.8539 Td (1519 int ecx;) 65.5277 Tj -0 -218.347 Td +0 -218.3473 Td (1520 int edx;) 65.5277 Tj -0 -227.841 Td +0 -227.8407 Td (1521 int esi;) 65.5277 Tj 0 -237.334 Td (1522 int edi;) 65.5277 Tj -0 -246.827 Td +0 -246.8274 Td (1523 int ebp;) 65.5277 Tj -0 -256.321 Td +0 -256.3207 Td (1524 };) 30.5796 Tj -0 -265.814 Td +0 -265.8141 Td (1525 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (1526 enum proc_state { UNUSED, EMBRYO, SLEEPING, RUNNABLE, RUNN\ -ING, ZOMBIE };) 336.376 Tj -0 -284.801 Td +ING, ZOMBIE };) 336.3756 Tj +0 -284.8008 Td (1527 ) 21.8426 Tj -0 -294.294 Td -(1528 // Per-process state) 109.213 Tj -0 -303.788 Td +0 -294.2942 Td +(1528 // Per-process state) 109.2129 Tj +0 -303.7875 Td (1529 struct proc {) 78.6333 Tj -0 -313.281 Td +0 -313.2809 Td (1530 char *mem; // Start of process memory \(k\ -ernel address\)) 332.007 Tj -0 -322.774 Td +ernel address\)) 332.0071 Tj +0 -322.7743 Td (1531 uint sz; // Size of process memory \(by\ tes\)) 288.322 Tj -0 -332.268 Td +0 -332.2676 Td (1532 char *kstack; // Bottom of kernel stack for \ -this process) 327.639 Tj +this process) 327.6386 Tj 0 -341.761 Td -(1533 enum proc_state state; // Process state) 214.057 Tj -0 -351.254 Td -(1534 int pid; // Process ID) 200.952 Tj -0 -360.748 Td -(1535 struct proc *parent; // Parent process) 218.426 Tj -0 -370.241 Td +(1533 enum proc_state state; // Process state) 214.0572 Tj +0 -351.2543 Td +(1534 int pid; // Process ID) 200.9517 Tj +0 -360.7477 Td +(1535 struct proc *parent; // Parent process) 218.4257 Tj +0 -370.2411 Td (1536 void *chan; // If non-zero, sleeping on ch\ -an) 283.953 Tj -0 -379.734 Td +an) 283.9534 Tj +0 -379.7344 Td (1537 int killed; // If non-zero, have been kill\ -ed) 283.953 Tj -0 -389.228 Td -(1538 struct file *ofile[NOFILE]; // Open files) 214.057 Tj -0 -398.721 Td -(1539 struct inode *cwd; // Current directory) 231.531 Tj -0 -408.214 Td -(1540 struct context context; // Switch here to run process) 270.848 Tj -0 -417.708 Td +ed) 283.9534 Tj +0 -389.2278 Td +(1538 struct file *ofile[NOFILE]; // Open files) 214.0572 Tj +0 -398.7211 Td +(1539 struct inode *cwd; // Current directory) 231.5313 Tj +0 -408.2145 Td +(1540 struct context context; // Switch here to run process) 270.8479 Tj +0 -417.7079 Td (1541 struct trapframe *tf; // Trap frame for current inte\ rrupt) 297.059 Tj -0 -427.201 Td -(1542 char name[16]; // Process name \(debugging\)) 262.111 Tj -0 -436.695 Td +0 -427.2012 Td +(1542 char name[16]; // Process name \(debugging\)) 262.1109 Tj +0 -436.6946 Td (1543 };) 30.5796 Tj -0 -446.188 Td +0 -446.1879 Td (1544 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1545 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1546 ) 21.8426 Tj 0 -474.668 Td (1547 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1548 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1549 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 15) 34.9481 Tj Q Q @@ -7848,118 +7871,117 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.h Page 2) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:04 2008 xv6/proc.h Page 2) 161.635 Tj 0 -28.4801 Td (1550 // Process memory is laid out contiguously, low addresses \ -first:) 301.427 Tj +first:) 301.4275 Tj 0 -37.9735 Td (1551 // text) 61.1592 Tj 0 -47.4668 Td -(1552 // original data and bss) 135.424 Tj +(1552 // original data and bss) 135.4239 Tj 0 -56.9602 Td -(1553 // fixed-size stack) 113.581 Tj +(1553 // fixed-size stack) 113.5814 Tj 0 -66.4535 Td -(1554 // expandable heap) 109.213 Tj +(1554 // expandable heap) 109.2129 Tj 0 -75.9469 Td (1555 ) 21.8426 Tj 0 -85.4403 Td -(1556 // Arrange that cp point to the struct proc that this) 253.374 Tj +(1556 // Per-CPU state) 91.7388 Tj 0 -94.9336 Td -(1557 // CPU is currently running. Such preprocessor) 227.163 Tj +(1557 struct cpu {) 74.2647 Tj 0 -104.427 Td -(1558 // subterfuge can be confusing, but saves a lot of typing.) 275.216 Tj -0 -113.92 Td -(1559 extern struct proc *curproc[NCPU]; // Current \(running\)\ - process per CPU) 336.376 Tj -0 -123.414 Td -(1560 #define cp \(curproc[cpu\(\)]\) // Current process on thi\ -s CPU) 279.585 Tj -0 -132.907 Td -(1561 ) 21.8426 Tj -0 -142.4 Td -(1562 ) 21.8426 Tj -0 -151.894 Td -(1563 #define MPSTACK 512) 104.844 Tj -0 -161.387 Td -(1564 ) 21.8426 Tj -0 -170.88 Td -(1565 // Per-CPU state) 91.7388 Tj -0 -180.374 Td -(1566 struct cpu {) 74.2647 Tj -0 -189.867 Td -(1567 uchar apicid; // Local APIC ID) 222.794 Tj -0 -199.361 Td -(1568 struct context context; // Switch here to enter sche\ +(1558 uchar apicid; // Local APIC ID) 222.7942 Tj +0 -113.9203 Td +(1559 struct proc *curproc; // Process currently running\ +.) 279.5849 Tj +0 -123.4137 Td +(1560 struct context context; // Switch here to enter sche\ duler) 297.059 Tj -0 -208.854 Td -(1569 struct taskstate ts; // Used by x86 to find stack\ - for interrupt) 336.376 Tj -0 -218.347 Td -(1570 struct segdesc gdt[NSEGS]; // x86 global descriptor tab\ -le) 283.953 Tj -0 -227.841 Td -(1571 char mpstack[MPSTACK]; // Per-CPU startup stack) 257.742 Tj +0 -132.9071 Td +(1561 struct taskstate ts; // Used by x86 to find stack\ + for interrupt) 336.3756 Tj +0 -142.4004 Td +(1562 struct segdesc gdt[NSEGS]; // x86 global descriptor tab\ +le) 283.9534 Tj +0 -151.8938 Td +(1563 volatile uint booted; // Has the CPU started?) 257.7424 Tj +0 -161.3871 Td +(1564 int ncli; // Depth of pushcli nesting.) 275.2164 Tj +0 -170.8805 Td +(1565 int intena; // Were interrupts enabled b\ +efore pushcli?) 336.3756 Tj +0 -180.3739 Td +(1566 };) 30.5796 Tj +0 -189.8672 Td +(1567 ) 21.8426 Tj +0 -199.3606 Td +(1568 extern struct cpu cpus[NCPU];) 148.5295 Tj +0 -208.8539 Td +(1569 extern int ncpu;) 91.7388 Tj +0 -218.3473 Td +(1570 ) 21.8426 Tj +0 -227.8407 Td +(1571 // "cp" is a short alias for curproc\(\).) 192.2146 Tj 0 -237.334 Td -(1572 volatile int booted; // Has the CPU started?) 253.374 Tj -0 -246.827 Td -(1573 int nlock; // Number of locks currently\ - held) 297.059 Tj -0 -256.321 Td -(1574 };) 30.5796 Tj -0 -265.814 Td +(1572 // It gets used enough to make this worthwhile.) 227.1628 Tj +0 -246.8274 Td +(1573 #define cp curproc\(\)) 109.2129 Tj +0 -256.3207 Td +(1574 ) 21.8426 Tj +0 -265.8141 Td (1575 ) 21.8426 Tj -0 -275.307 Td -(1576 extern struct cpu cpus[NCPU];) 148.529 Tj -0 -284.801 Td -(1577 extern int ncpu;) 91.7388 Tj -0 -294.294 Td +0 -275.3075 Td +(1576 ) 21.8426 Tj +0 -284.8008 Td +(1577 ) 21.8426 Tj +0 -294.2942 Td (1578 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (1579 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (1580 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (1581 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (1582 ) 21.8426 Tj 0 -341.761 Td (1583 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (1584 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (1585 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (1586 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (1587 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (1588 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (1589 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (1590 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (1591 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (1592 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (1593 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (1594 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1595 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1596 ) 21.8426 Tj 0 -474.668 Td (1597 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1598 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1599 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 15) 34.9481 Tj Q Q @@ -7988,8 +8010,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -8004,16 +8025,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 1) 161.635 Tj 0 -28.4801 Td -(1600 #include "types.h") 100.476 Tj +(1600 #include "types.h") 100.4758 Tj 0 -37.9735 Td (1601 #include "defs.h") 96.1073 Tj 0 -47.4668 Td -(1602 #include "param.h") 100.476 Tj +(1602 #include "param.h") 100.4758 Tj 0 -56.9602 Td (1603 #include "mmu.h") 91.7388 Tj 0 -66.4535 Td @@ -8021,94 +8042,94 @@ q 0 -75.9469 Td (1605 #include "proc.h") 96.1073 Tj 0 -85.4403 Td -(1606 #include "spinlock.h") 113.581 Tj +(1606 #include "spinlock.h") 113.5814 Tj 0 -94.9336 Td (1607 ) 21.8426 Tj 0 -104.427 Td (1608 struct spinlock proc_table_lock;) 161.635 Tj -0 -113.92 Td +0 -113.9203 Td (1609 ) 21.8426 Tj -0 -123.414 Td -(1610 struct proc proc[NPROC];) 126.687 Tj -0 -132.907 Td -(1611 struct proc *curproc[NCPU];) 139.792 Tj -0 -142.4 Td -(1612 static struct proc *initproc;) 148.529 Tj -0 -151.894 Td -(1613 ) 21.8426 Tj -0 -161.387 Td -(1614 int nextpid = 1;) 91.7388 Tj -0 -170.88 Td -(1615 extern void forkret\(void\);) 135.424 Tj -0 -180.374 Td -(1616 extern void forkret1\(struct trapframe*\);) 196.583 Tj -0 -189.867 Td -(1617 ) 21.8426 Tj -0 -199.361 Td -(1618 void) 39.3166 Tj -0 -208.854 Td -(1619 pinit\(void\)) 69.8962 Tj -0 -218.347 Td -(1620 {) 26.2111 Tj -0 -227.841 Td -(1621 initlock\(&proc_table_lock, "proc_table"\);) 209.689 Tj +0 -123.4137 Td +(1610 struct proc proc[NPROC];) 126.6869 Tj +0 -132.9071 Td +(1611 static struct proc *initproc;) 148.5295 Tj +0 -142.4004 Td +(1612 ) 21.8426 Tj +0 -151.8938 Td +(1613 int nextpid = 1;) 91.7388 Tj +0 -161.3871 Td +(1614 extern void forkret\(void\);) 135.4239 Tj +0 -170.8805 Td +(1615 extern void forkret1\(struct trapframe*\);) 196.5831 Tj +0 -180.3739 Td +(1616 ) 21.8426 Tj +0 -189.8672 Td +(1617 void) 39.3166 Tj +0 -199.3606 Td +(1618 pinit\(void\)) 69.8962 Tj +0 -208.8539 Td +(1619 {) 26.2111 Tj +0 -218.3473 Td +(1620 initlock\(&proc_table_lock, "proc_table"\);) 209.6887 Tj +0 -227.8407 Td +(1621 }) 26.2111 Tj 0 -237.334 Td -(1622 }) 26.2111 Tj -0 -246.827 Td -(1623 ) 21.8426 Tj -0 -256.321 Td -(1624 // Look in the process table for an UNUSED proc.) 231.531 Tj -0 -265.814 Td -(1625 // If found, change state to EMBRYO and return it.) 240.268 Tj -0 -275.307 Td -(1626 // Otherwise return 0.) 117.95 Tj -0 -284.801 Td -(1627 static struct proc*) 104.844 Tj -0 -294.294 Td -(1628 allocproc\(void\)) 87.3703 Tj -0 -303.788 Td -(1629 {) 26.2111 Tj -0 -313.281 Td -(1630 int i;) 56.7907 Tj -0 -322.774 Td -(1631 struct proc *p;) 96.1073 Tj -0 -332.268 Td -(1632 ) 21.8426 Tj +(1622 ) 21.8426 Tj +0 -246.8274 Td +(1623 // Look in the process table for an UNUSED proc.) 231.5313 Tj +0 -256.3207 Td +(1624 // If found, change state to EMBRYO and return it.) 240.2683 Tj +0 -265.8141 Td +(1625 // Otherwise return 0.) 117.9499 Tj +0 -275.3075 Td +(1626 static struct proc*) 104.8443 Tj +0 -284.8008 Td +(1627 allocproc\(void\)) 87.3703 Tj +0 -294.2942 Td +(1628 {) 26.2111 Tj +0 -303.7875 Td +(1629 int i;) 56.7907 Tj +0 -313.2809 Td +(1630 struct proc *p;) 96.1073 Tj +0 -322.7743 Td +(1631 ) 21.8426 Tj +0 -332.2676 Td +(1632 acquire\(&proc_table_lock\);) 144.161 Tj 0 -341.761 Td -(1633 acquire\(&proc_table_lock\);) 144.161 Tj -0 -351.254 Td -(1634 for\(i = 0; i < NPROC; i++\){) 148.529 Tj -0 -360.748 Td -(1635 p = &proc[i];) 96.1073 Tj -0 -370.241 Td -(1636 if\(p->state == UNUSED\){) 139.792 Tj -0 -379.734 Td -(1637 p->state = EMBRYO;) 126.687 Tj -0 -389.228 Td -(1638 p->pid = nextpid++;) 131.055 Tj -0 -398.721 Td -(1639 release\(&proc_table_lock\);) 161.635 Tj -0 -408.214 Td -(1640 return p;) 87.3703 Tj -0 -417.708 Td -(1641 }) 43.6851 Tj -0 -427.201 Td -(1642 }) 34.9481 Tj -0 -436.695 Td -(1643 release\(&proc_table_lock\);) 144.161 Tj -0 -446.188 Td -(1644 return 0;) 69.8962 Tj -0 -455.681 Td -(1645 }) 26.2111 Tj -0 -465.175 Td +(1633 for\(i = 0; i < NPROC; i++\){) 148.5295 Tj +0 -351.2543 Td +(1634 p = &proc[i];) 96.1073 Tj +0 -360.7477 Td +(1635 if\(p->state == UNUSED\){) 139.7925 Tj +0 -370.2411 Td +(1636 p->state = EMBRYO;) 126.6869 Tj +0 -379.7344 Td +(1637 p->pid = nextpid++;) 131.0554 Tj +0 -389.2278 Td +(1638 release\(&proc_table_lock\);) 161.635 Tj +0 -398.7211 Td +(1639 return p;) 87.3703 Tj +0 -408.2145 Td +(1640 }) 43.6851 Tj +0 -417.7079 Td +(1641 }) 34.9481 Tj +0 -427.2012 Td +(1642 release\(&proc_table_lock\);) 144.161 Tj +0 -436.6946 Td +(1643 return 0;) 69.8962 Tj +0 -446.1879 Td +(1644 }) 26.2111 Tj +0 -455.6813 Td +(1645 ) 21.8426 Tj +0 -465.1747 Td (1646 ) 21.8426 Tj 0 -474.668 Td (1647 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1648 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1649 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 16) 34.9481 Tj Q Q @@ -8123,14 +8144,14 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 2) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 2) 161.635 Tj 0 -28.4801 Td -(1650 // Grow current process's memory by n bytes.) 214.057 Tj +(1650 // Grow current process's memory by n bytes.) 214.0572 Tj 0 -37.9735 Td -(1651 // Return old size on success, -1 on failure.) 218.426 Tj +(1651 // Return old size on success, -1 on failure.) 218.4257 Tj 0 -47.4668 Td (1652 int) 34.9481 Tj 0 -56.9602 Td @@ -8138,102 +8159,102 @@ q 0 -66.4535 Td (1654 {) 26.2111 Tj 0 -75.9469 Td -(1655 char *newmem, *oldmem;) 126.687 Tj +(1655 char *newmem;) 87.3703 Tj 0 -85.4403 Td (1656 ) 21.8426 Tj 0 -94.9336 Td (1657 newmem = kalloc\(cp->sz + n\);) 152.898 Tj 0 -104.427 Td (1658 if\(newmem == 0\)) 96.1073 Tj -0 -113.92 Td +0 -113.9203 Td (1659 return -1;) 83.0018 Tj -0 -123.414 Td -(1660 memmove\(newmem, cp->mem, cp->sz\);) 174.741 Tj -0 -132.907 Td +0 -123.4137 Td +(1660 memmove\(newmem, cp->mem, cp->sz\);) 174.7406 Tj +0 -132.9071 Td (1661 memset\(newmem + cp->sz, 0, n\);) 161.635 Tj -0 -142.4 Td -(1662 oldmem = cp->mem;) 104.844 Tj -0 -151.894 Td -(1663 cp->mem = newmem;) 104.844 Tj -0 -161.387 Td -(1664 kfree\(oldmem, cp->sz\);) 126.687 Tj -0 -170.88 Td -(1665 cp->sz += n;) 83.0018 Tj -0 -180.374 Td -(1666 return cp->sz - n;) 109.213 Tj -0 -189.867 Td +0 -142.4004 Td +(1662 kfree\(cp->mem, cp->sz\);) 131.0554 Tj +0 -151.8938 Td +(1663 cp->mem = newmem;) 104.8443 Tj +0 -161.3871 Td +(1664 cp->sz += n;) 83.0018 Tj +0 -170.8805 Td +(1665 setupsegs\(cp\);) 91.7388 Tj +0 -180.3739 Td +(1666 return cp->sz - n;) 109.2129 Tj +0 -189.8672 Td (1667 }) 26.2111 Tj -0 -199.361 Td +0 -199.3606 Td (1668 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (1669 // Set up CPU's segment descriptors and task state for a g\ -iven process.) 332.007 Tj -0 -218.347 Td +iven process.) 332.0071 Tj +0 -218.3473 Td (1670 // If p==0, set up for "idle" state for when scheduler\(\)\ - is running.) 318.902 Tj -0 -227.841 Td + is running.) 318.9016 Tj +0 -227.8407 Td (1671 void) 39.3166 Tj 0 -237.334 Td -(1672 setupsegs\(struct proc *p\)) 131.055 Tj -0 -246.827 Td +(1672 setupsegs\(struct proc *p\)) 131.0554 Tj +0 -246.8274 Td (1673 {) 26.2111 Tj -0 -256.321 Td +0 -256.3207 Td (1674 struct cpu *c;) 91.7388 Tj -0 -265.814 Td +0 -265.8141 Td (1675 ) 21.8426 Tj -0 -275.307 Td -(1676 c = &cpus[cpu\(\)];) 104.844 Tj -0 -284.801 Td -(1677 c->ts.ss0 = SEG_KDATA << 3;) 148.529 Tj -0 -294.294 Td -(1678 if\(p\)) 52.4222 Tj -0 -303.788 Td -(1679 c->ts.esp0 = \(uint\)\(p->kstack + KSTACKSIZE\);) 231.531 Tj -0 -313.281 Td -(1680 else) 48.0537 Tj -0 -322.774 Td -(1681 c->ts.esp0 = 0xffffffff;) 144.161 Tj -0 -332.268 Td -(1682 ) 21.8426 Tj +0 -275.3075 Td +(1676 pushcli\(\);) 74.2647 Tj +0 -284.8008 Td +(1677 c = &cpus[cpu\(\)];) 104.8443 Tj +0 -294.2942 Td +(1678 c->ts.ss0 = SEG_KDATA << 3;) 148.5295 Tj +0 -303.7875 Td +(1679 if\(p\)) 52.4222 Tj +0 -313.2809 Td +(1680 c->ts.esp0 = \(uint\)\(p->kstack + KSTACKSIZE\);) 231.5313 Tj +0 -322.7743 Td +(1681 else) 48.0537 Tj +0 -332.2676 Td +(1682 c->ts.esp0 = 0xffffffff;) 144.161 Tj 0 -341.761 Td -(1683 c->gdt[0] = SEG_NULL;) 122.318 Tj -0 -351.254 Td -(1684 c->gdt[SEG_KCODE] = SEG\(STA_X|STA_R, 0, 0x100000 + 64*1\ +(1683 ) 21.8426 Tj +0 -351.2543 Td +(1684 c->gdt[0] = SEG_NULL;) 122.3184 Tj +0 -360.7477 Td +(1685 c->gdt[SEG_KCODE] = SEG\(STA_X|STA_R, 0, 0x100000 + 64*1\ 024-1, 0\);) 314.533 Tj -0 -360.748 Td -(1685 c->gdt[SEG_KDATA] = SEG\(STA_W, 0, 0xffffffff, 0\);) 244.637 Tj -0 -370.241 Td -(1686 c->gdt[SEG_TSS] = SEG16\(STS_T32A, \(uint\)&c->ts, sizeo\ -f\(c->ts\)-1, 0\);) 327.639 Tj -0 -379.734 Td -(1687 c->gdt[SEG_TSS].s = 0;) 126.687 Tj -0 -389.228 Td -(1688 if\(p\){) 56.7907 Tj -0 -398.721 Td -(1689 c->gdt[SEG_UCODE] = SEG\(STA_X|STA_R, \(uint\)p->mem, \ -p->sz-1, DPL_USER\);) 345.113 Tj -0 -408.214 Td -(1690 c->gdt[SEG_UDATA] = SEG\(STA_W, \(uint\)p->mem, p->sz-\ -1, DPL_USER\);) 318.902 Tj -0 -417.708 Td -(1691 } else {) 65.5277 Tj -0 -427.201 Td -(1692 c->gdt[SEG_UCODE] = SEG_NULL;) 166.004 Tj -0 -436.695 Td -(1693 c->gdt[SEG_UDATA] = SEG_NULL;) 166.004 Tj -0 -446.188 Td -(1694 }) 34.9481 Tj -0 -455.681 Td -(1695 ) 21.8426 Tj -0 -465.175 Td -(1696 lgdt\(c->gdt, sizeof\(c->gdt\)\);) 157.267 Tj +0 -370.2411 Td +(1686 c->gdt[SEG_KDATA] = SEG\(STA_W, 0, 0xffffffff, 0\);) 244.6368 Tj +0 -379.7344 Td +(1687 c->gdt[SEG_TSS] = SEG16\(STS_T32A, \(uint\)&c->ts, sizeo\ +f\(c->ts\)-1, 0\);) 327.6386 Tj +0 -389.2278 Td +(1688 c->gdt[SEG_TSS].s = 0;) 126.6869 Tj +0 -398.7211 Td +(1689 if\(p\){) 56.7907 Tj +0 -408.2145 Td +(1690 c->gdt[SEG_UCODE] = SEG\(STA_X|STA_R, \(uint\)p->mem, \ +p->sz-1, DPL_USER\);) 345.1126 Tj +0 -417.7079 Td +(1691 c->gdt[SEG_UDATA] = SEG\(STA_W, \(uint\)p->mem, p->sz-\ +1, DPL_USER\);) 318.9016 Tj +0 -427.2012 Td +(1692 } else {) 65.5277 Tj +0 -436.6946 Td +(1693 c->gdt[SEG_UCODE] = SEG_NULL;) 166.0035 Tj +0 -446.1879 Td +(1694 c->gdt[SEG_UDATA] = SEG_NULL;) 166.0035 Tj +0 -455.6813 Td +(1695 }) 34.9481 Tj +0 -465.1747 Td +(1696 ) 21.8426 Tj 0 -474.668 Td -(1697 ltr\(SEG_TSS << 3\);) 109.213 Tj -0 -484.161 Td -(1698 }) 26.2111 Tj -0 -493.655 Td +(1697 ) 21.8426 Tj +0 -484.1614 Td +(1698 ) 21.8426 Tj +0 -493.6547 Td (1699 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 16) 34.9481 Tj Q Q @@ -8262,8 +8283,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -8278,114 +8298,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 3) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 3) 161.635 Tj 0 -28.4801 Td -(1700 // Create a new process copying p as the parent.) 231.531 Tj +(1700 lgdt\(c->gdt, sizeof\(c->gdt\)\);) 157.2665 Tj 0 -37.9735 Td -(1701 // Sets up stack to return as if from system call.) 240.268 Tj +(1701 ltr\(SEG_TSS << 3\);) 109.2129 Tj 0 -47.4668 Td -(1702 // Caller must set state of returned proc to RUNNABLE.) 257.742 Tj +(1702 popcli\(\);) 69.8962 Tj 0 -56.9602 Td -(1703 struct proc*) 74.2647 Tj +(1703 }) 26.2111 Tj 0 -66.4535 Td -(1704 copyproc\(struct proc *p\)) 126.687 Tj +(1704 ) 21.8426 Tj 0 -75.9469 Td -(1705 {) 26.2111 Tj +(1705 // Create a new process copying p as the parent.) 231.5313 Tj 0 -85.4403 Td -(1706 int i;) 56.7907 Tj +(1706 // Sets up stack to return as if from system call.) 240.2683 Tj 0 -94.9336 Td -(1707 struct proc *np;) 100.476 Tj +(1707 // Caller must set state of returned proc to RUNNABLE.) 257.7424 Tj 0 -104.427 Td -(1708 ) 21.8426 Tj -0 -113.92 Td -(1709 // Allocate process.) 117.95 Tj -0 -123.414 Td -(1710 if\(\(np = allocproc\(\)\) == 0\)) 148.529 Tj -0 -132.907 Td -(1711 return 0;) 78.6333 Tj -0 -142.4 Td -(1712 ) 21.8426 Tj -0 -151.894 Td -(1713 // Allocate kernel stack.) 139.792 Tj -0 -161.387 Td -(1714 if\(\(np->kstack = kalloc\(KSTACKSIZE\)\) == 0\){) 218.426 Tj -0 -170.88 Td -(1715 np->state = UNUSED;) 122.318 Tj -0 -180.374 Td +(1708 struct proc*) 74.2647 Tj +0 -113.9203 Td +(1709 copyproc\(struct proc *p\)) 126.6869 Tj +0 -123.4137 Td +(1710 {) 26.2111 Tj +0 -132.9071 Td +(1711 int i;) 56.7907 Tj +0 -142.4004 Td +(1712 struct proc *np;) 100.4758 Tj +0 -151.8938 Td +(1713 ) 21.8426 Tj +0 -161.3871 Td +(1714 // Allocate process.) 117.9499 Tj +0 -170.8805 Td +(1715 if\(\(np = allocproc\(\)\) == 0\)) 148.5295 Tj +0 -180.3739 Td (1716 return 0;) 78.6333 Tj -0 -189.867 Td -(1717 }) 34.9481 Tj -0 -199.361 Td -(1718 np->tf = \(struct trapframe*\)\(np->kstack + KSTACKSIZE\)\ - - 1;) 283.953 Tj -0 -208.854 Td -(1719 ) 21.8426 Tj -0 -218.347 Td -(1720 if\(p\){ // Copy process state from p.) 192.215 Tj -0 -227.841 Td -(1721 np->parent = p;) 104.844 Tj +0 -189.8672 Td +(1717 ) 21.8426 Tj +0 -199.3606 Td +(1718 // Allocate kernel stack.) 139.7925 Tj +0 -208.8539 Td +(1719 if\(\(np->kstack = kalloc\(KSTACKSIZE\)\) == 0\){) 218.4257 Tj +0 -218.3473 Td +(1720 np->state = UNUSED;) 122.3184 Tj +0 -227.8407 Td +(1721 return 0;) 78.6333 Tj 0 -237.334 Td -(1722 memmove\(np->tf, p->tf, sizeof\(*np->tf\)\);) 214.057 Tj -0 -246.827 Td -(1723 ) 21.8426 Tj -0 -256.321 Td -(1724 np->sz = p->sz;) 104.844 Tj -0 -265.814 Td -(1725 if\(\(np->mem = kalloc\(np->sz\)\) == 0\){) 196.583 Tj -0 -275.307 Td -(1726 kfree\(np->kstack, KSTACKSIZE\);) 179.109 Tj -0 -284.801 Td -(1727 np->kstack = 0;) 113.581 Tj -0 -294.294 Td -(1728 np->state = UNUSED;) 131.055 Tj -0 -303.788 Td -(1729 return 0;) 87.3703 Tj -0 -313.281 Td -(1730 }) 43.6851 Tj -0 -322.774 Td -(1731 memmove\(np->mem, p->mem, np->sz\);) 183.478 Tj -0 -332.268 Td -(1732 ) 21.8426 Tj +(1722 }) 34.9481 Tj +0 -246.8274 Td +(1723 np->tf = \(struct trapframe*\)\(np->kstack + KSTACKSIZE\)\ + - 1;) 283.9534 Tj +0 -256.3207 Td +(1724 ) 21.8426 Tj +0 -265.8141 Td +(1725 if\(p\){ // Copy process state from p.) 192.2146 Tj +0 -275.3075 Td +(1726 np->parent = p;) 104.8443 Tj +0 -284.8008 Td +(1727 memmove\(np->tf, p->tf, sizeof\(*np->tf\)\);) 214.0572 Tj +0 -294.2942 Td +(1728 ) 21.8426 Tj +0 -303.7875 Td +(1729 np->sz = p->sz;) 104.8443 Tj +0 -313.2809 Td +(1730 if\(\(np->mem = kalloc\(np->sz\)\) == 0\){) 196.5831 Tj +0 -322.7743 Td +(1731 kfree\(np->kstack, KSTACKSIZE\);) 179.1091 Tj +0 -332.2676 Td +(1732 np->kstack = 0;) 113.5814 Tj 0 -341.761 Td -(1733 for\(i = 0; i < NOFILE; i++\)) 157.267 Tj -0 -351.254 Td -(1734 if\(p->ofile[i]\)) 113.581 Tj -0 -360.748 Td -(1735 np->ofile[i] = filedup\(p->ofile[i]\);) 214.057 Tj -0 -370.241 Td -(1736 np->cwd = idup\(p->cwd\);) 139.792 Tj -0 -379.734 Td -(1737 }) 34.9481 Tj -0 -389.228 Td +(1733 np->state = UNUSED;) 131.0554 Tj +0 -351.2543 Td +(1734 np->parent = 0;) 113.5814 Tj +0 -360.7477 Td +(1735 return 0;) 87.3703 Tj +0 -370.2411 Td +(1736 }) 43.6851 Tj +0 -379.7344 Td +(1737 memmove\(np->mem, p->mem, np->sz\);) 183.4776 Tj +0 -389.2278 Td (1738 ) 21.8426 Tj -0 -398.721 Td -(1739 // Set up new context to start executing at forkret \(se\ -e below\).) 310.165 Tj -0 -408.214 Td -(1740 memset\(&np->context, 0, sizeof\(np->context\)\);) 227.163 Tj -0 -417.708 Td -(1741 np->context.eip = \(uint\)forkret;) 170.372 Tj -0 -427.201 Td -(1742 np->context.esp = \(uint\)np->tf;) 166.004 Tj -0 -436.695 Td -(1743 ) 21.8426 Tj -0 -446.188 Td -(1744 // Clear %eax so that fork system call returns 0 in chil\ -d.) 283.953 Tj -0 -455.681 Td -(1745 np->tf->eax = 0;) 100.476 Tj -0 -465.175 Td -(1746 return np;) 74.2647 Tj +0 -398.7211 Td +(1739 for\(i = 0; i < NOFILE; i++\)) 157.2665 Tj +0 -408.2145 Td +(1740 if\(p->ofile[i]\)) 113.5814 Tj +0 -417.7079 Td +(1741 np->ofile[i] = filedup\(p->ofile[i]\);) 214.0572 Tj +0 -427.2012 Td +(1742 np->cwd = idup\(p->cwd\);) 139.7925 Tj +0 -436.6946 Td +(1743 }) 34.9481 Tj +0 -446.1879 Td +(1744 ) 21.8426 Tj +0 -455.6813 Td +(1745 // Set up new context to start executing at forkret \(se\ +e below\).) 310.1645 Tj +0 -465.1747 Td +(1746 memset\(&np->context, 0, sizeof\(np->context\)\);) 227.1628 Tj 0 -474.668 Td -(1747 }) 26.2111 Tj -0 -484.161 Td -(1748 ) 21.8426 Tj -0 -493.655 Td +(1747 np->context.eip = \(uint\)forkret;) 170.3721 Tj +0 -484.1614 Td +(1748 np->context.esp = \(uint\)np->tf;) 166.0035 Tj +0 -493.6547 Td (1749 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 17) 34.9481 Tj Q Q @@ -8400,114 +8419,115 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 4) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 4) 161.635 Tj 0 -28.4801 Td -(1750 // Set up first user process.) 148.529 Tj +(1750 // Clear %eax so that fork system call returns 0 in chil\ +d.) 283.9534 Tj 0 -37.9735 Td -(1751 void) 39.3166 Tj +(1751 np->tf->eax = 0;) 100.4758 Tj 0 -47.4668 Td -(1752 userinit\(void\)) 83.0018 Tj +(1752 return np;) 74.2647 Tj 0 -56.9602 Td -(1753 {) 26.2111 Tj +(1753 }) 26.2111 Tj 0 -66.4535 Td -(1754 struct proc *p;) 96.1073 Tj +(1754 ) 21.8426 Tj 0 -75.9469 Td -(1755 extern uchar _binary_initcode_start[], _binary_initcode_\ -size[];) 305.796 Tj +(1755 // Set up first user process.) 148.5295 Tj 0 -85.4403 Td -(1756 ) 21.8426 Tj +(1756 void) 39.3166 Tj 0 -94.9336 Td -(1757 p = copyproc\(0\);) 100.476 Tj +(1757 userinit\(void\)) 83.0018 Tj 0 -104.427 Td -(1758 p->sz = PAGE;) 87.3703 Tj -0 -113.92 Td -(1759 p->mem = kalloc\(p->sz\);) 131.055 Tj -0 -123.414 Td -(1760 p->cwd = namei\("/"\);) 117.95 Tj -0 -132.907 Td -(1761 memset\(p->tf, 0, sizeof\(*p->tf\)\);) 174.741 Tj -0 -142.4 Td -(1762 p->tf->cs = \(SEG_UCODE << 3\) | DPL_USER;) 205.32 Tj -0 -151.894 Td -(1763 p->tf->ds = \(SEG_UDATA << 3\) | DPL_USER;) 205.32 Tj -0 -161.387 Td -(1764 p->tf->es = p->tf->ds;) 126.687 Tj -0 -170.88 Td -(1765 p->tf->ss = p->tf->ds;) 126.687 Tj -0 -180.374 Td -(1766 p->tf->eflags = FL_IF;) 126.687 Tj -0 -189.867 Td -(1767 p->tf->esp = p->sz;) 113.581 Tj -0 -199.361 Td -(1768 ) 21.8426 Tj -0 -208.854 Td -(1769 // Make return address readable; needed for some gcc.) 262.111 Tj -0 -218.347 Td -(1770 p->tf->esp -= 4;) 100.476 Tj -0 -227.841 Td -(1771 *\(uint*\)\(p->mem + p->tf->esp\) = 0xefefefef;) 218.426 Tj +(1758 {) 26.2111 Tj +0 -113.9203 Td +(1759 struct proc *p;) 96.1073 Tj +0 -123.4137 Td +(1760 extern uchar _binary_initcode_start[], _binary_initcode_\ +size[];) 305.796 Tj +0 -132.9071 Td +(1761 ) 21.8426 Tj +0 -142.4004 Td +(1762 p = copyproc\(0\);) 100.4758 Tj +0 -151.8938 Td +(1763 p->sz = PAGE;) 87.3703 Tj +0 -161.3871 Td +(1764 p->mem = kalloc\(p->sz\);) 131.0554 Tj +0 -170.8805 Td +(1765 p->cwd = namei\("/"\);) 117.9499 Tj +0 -180.3739 Td +(1766 memset\(p->tf, 0, sizeof\(*p->tf\)\);) 174.7406 Tj +0 -189.8672 Td +(1767 p->tf->cs = \(SEG_UCODE << 3\) | DPL_USER;) 205.3202 Tj +0 -199.3606 Td +(1768 p->tf->ds = \(SEG_UDATA << 3\) | DPL_USER;) 205.3202 Tj +0 -208.8539 Td +(1769 p->tf->es = p->tf->ds;) 126.6869 Tj +0 -218.3473 Td +(1770 p->tf->ss = p->tf->ds;) 126.6869 Tj +0 -227.8407 Td +(1771 p->tf->eflags = FL_IF;) 126.6869 Tj 0 -237.334 Td -(1772 ) 21.8426 Tj -0 -246.827 Td -(1773 // On entry to user space, start executing at beginning \ -of initcode.S.) 336.376 Tj -0 -256.321 Td -(1774 p->tf->eip = 0;) 96.1073 Tj -0 -265.814 Td -(1775 memmove\(p->mem, _binary_initcode_start, \(int\)_binary_\ -initcode_size\);) 327.639 Tj -0 -275.307 Td -(1776 safestrcpy\(p->name, "initcode", sizeof\(p->name\)\);) 244.637 Tj -0 -284.801 Td -(1777 p->state = RUNNABLE;) 117.95 Tj -0 -294.294 Td -(1778 ) 21.8426 Tj -0 -303.788 Td -(1779 initproc = p;) 87.3703 Tj -0 -313.281 Td -(1780 }) 26.2111 Tj -0 -322.774 Td -(1781 ) 21.8426 Tj -0 -332.268 Td -(1782 ) 21.8426 Tj +(1772 p->tf->esp = p->sz;) 113.5814 Tj +0 -246.8274 Td +(1773 ) 21.8426 Tj +0 -256.3207 Td +(1774 // Make return address readable; needed for some gcc.) 262.1109 Tj +0 -265.8141 Td +(1775 p->tf->esp -= 4;) 100.4758 Tj +0 -275.3075 Td +(1776 *\(uint*\)\(p->mem + p->tf->esp\) = 0xefefefef;) 218.4257 Tj +0 -284.8008 Td +(1777 ) 21.8426 Tj +0 -294.2942 Td +(1778 // On entry to user space, start executing at beginning \ +of initcode.S.) 336.3756 Tj +0 -303.7875 Td +(1779 p->tf->eip = 0;) 96.1073 Tj +0 -313.2809 Td +(1780 memmove\(p->mem, _binary_initcode_start, \(int\)_binary_\ +initcode_size\);) 327.6386 Tj +0 -322.7743 Td +(1781 safestrcpy\(p->name, "initcode", sizeof\(p->name\)\);) 244.6368 Tj +0 -332.2676 Td +(1782 p->state = RUNNABLE;) 117.9499 Tj 0 -341.761 Td (1783 ) 21.8426 Tj -0 -351.254 Td -(1784 ) 21.8426 Tj -0 -360.748 Td -(1785 ) 21.8426 Tj -0 -370.241 Td +0 -351.2543 Td +(1784 initproc = p;) 87.3703 Tj +0 -360.7477 Td +(1785 }) 26.2111 Tj +0 -370.2411 Td (1786 ) 21.8426 Tj -0 -379.734 Td -(1787 ) 21.8426 Tj -0 -389.228 Td -(1788 ) 21.8426 Tj -0 -398.721 Td -(1789 ) 21.8426 Tj -0 -408.214 Td -(1790 ) 21.8426 Tj -0 -417.708 Td -(1791 ) 21.8426 Tj -0 -427.201 Td +0 -379.7344 Td +(1787 // Return currently running process.) 179.1091 Tj +0 -389.2278 Td +(1788 struct proc*) 74.2647 Tj +0 -398.7211 Td +(1789 curproc\(void\)) 78.6333 Tj +0 -408.2145 Td +(1790 {) 26.2111 Tj +0 -417.7079 Td +(1791 struct proc *p;) 96.1073 Tj +0 -427.2012 Td (1792 ) 21.8426 Tj -0 -436.695 Td -(1793 ) 21.8426 Tj -0 -446.188 Td -(1794 ) 21.8426 Tj -0 -455.681 Td -(1795 ) 21.8426 Tj -0 -465.175 Td -(1796 ) 21.8426 Tj +0 -436.6946 Td +(1793 pushcli\(\);) 74.2647 Tj +0 -446.1879 Td +(1794 p = cpus[cpu\(\)].curproc;) 135.4239 Tj +0 -455.6813 Td +(1795 popcli\(\);) 69.8962 Tj +0 -465.1747 Td +(1796 return p;) 69.8962 Tj 0 -474.668 Td -(1797 ) 21.8426 Tj -0 -484.161 Td +(1797 }) 26.2111 Tj +0 -484.1614 Td (1798 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1799 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 17) 34.9481 Tj Q Q @@ -8536,8 +8556,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -8552,113 +8571,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 5) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 5) 161.635 Tj 0 -28.4801 Td -(1800 // Per-CPU process scheduler.) 148.529 Tj +(1800 // Per-CPU process scheduler.) 148.5295 Tj 0 -37.9735 Td -(1801 // Each CPU calls scheduler\(\) after setting itself up.) 257.742 Tj +(1801 // Each CPU calls scheduler\(\) after setting itself up.) 257.7424 Tj 0 -47.4668 Td -(1802 // Scheduler never returns. It loops, doing:) 218.426 Tj +(1802 // Scheduler never returns. It loops, doing:) 218.4257 Tj 0 -56.9602 Td -(1803 // - choose a process to run) 148.529 Tj +(1803 // - choose a process to run) 148.5295 Tj 0 -66.4535 Td -(1804 // - longjmp to start running that process) 209.689 Tj +(1804 // - swtch to start running that process) 200.9517 Tj 0 -75.9469 Td -(1805 // - eventually that process transfers control back) 249.005 Tj +(1805 // - eventually that process transfers control) 227.1628 Tj 0 -85.4403 Td -(1806 // via longjmp back to the scheduler.) 205.32 Tj +(1806 // via swtch back to the scheduler.) 196.5831 Tj 0 -94.9336 Td (1807 void) 39.3166 Tj 0 -104.427 Td (1808 scheduler\(void\)) 87.3703 Tj -0 -113.92 Td +0 -113.9203 Td (1809 {) 26.2111 Tj -0 -123.414 Td +0 -123.4137 Td (1810 struct proc *p;) 96.1073 Tj -0 -132.907 Td -(1811 int i;) 56.7907 Tj -0 -142.4 Td -(1812 ) 21.8426 Tj -0 -151.894 Td -(1813 for\(;;\){) 65.5277 Tj -0 -161.387 Td -(1814 // Loop over process table looking for process to run.) 275.216 Tj -0 -170.88 Td -(1815 acquire\(&proc_table_lock\);) 152.898 Tj -0 -180.374 Td -(1816 ) 21.8426 Tj -0 -189.867 Td -(1817 for\(i = 0; i < NPROC; i++\){) 157.267 Tj -0 -199.361 Td -(1818 p = &proc[i];) 104.844 Tj -0 -208.854 Td -(1819 if\(p->state != RUNNABLE\)) 152.898 Tj -0 -218.347 Td -(1820 continue;) 96.1073 Tj -0 -227.841 Td -(1821 ) 21.8426 Tj +0 -132.9071 Td +(1811 struct cpu *c;) 91.7388 Tj +0 -142.4004 Td +(1812 int i;) 56.7907 Tj +0 -151.8938 Td +(1813 ) 21.8426 Tj +0 -161.3871 Td +(1814 c = &cpus[cpu\(\)];) 104.8443 Tj +0 -170.8805 Td +(1815 for\(;;\){) 65.5277 Tj +0 -180.3739 Td +(1816 // Enable interrupts on this processor.) 209.6887 Tj +0 -189.8672 Td +(1817 sti\(\);) 65.5277 Tj +0 -199.3606 Td +(1818 ) 21.8426 Tj +0 -208.8539 Td +(1819 // Loop over process table looking for process to run.) 275.2164 Tj +0 -218.3473 Td +(1820 acquire\(&proc_table_lock\);) 152.898 Tj +0 -227.8407 Td +(1821 for\(i = 0; i < NPROC; i++\){) 157.2665 Tj 0 -237.334 Td -(1822 // Switch to chosen process. It is the process's jo\ -b) 279.585 Tj -0 -246.827 Td -(1823 // to release proc_table_lock and then reacquire it) 270.848 Tj -0 -256.321 Td -(1824 // before jumping back to us.) 174.741 Tj -0 -265.814 Td -(1825 cp = p;) 78.6333 Tj -0 -275.307 Td -(1826 setupsegs\(p\);) 104.844 Tj -0 -284.801 Td -(1827 p->state = RUNNING;) 131.055 Tj -0 -294.294 Td -(1828 swtch\(&cpus[cpu\(\)].context, &p->context\);) 227.163 Tj -0 -303.788 Td -(1829 ) 21.8426 Tj -0 -313.281 Td -(1830 // Process is done running for now.) 200.952 Tj -0 -322.774 Td -(1831 // It should have changed its p->state before coming\ - back.) 301.427 Tj -0 -332.268 Td -(1832 cp = 0;) 78.6333 Tj +(1822 p = &proc[i];) 104.8443 Tj +0 -246.8274 Td +(1823 if\(p->state != RUNNABLE\)) 152.898 Tj +0 -256.3207 Td +(1824 continue;) 96.1073 Tj +0 -265.8141 Td +(1825 ) 21.8426 Tj +0 -275.3075 Td +(1826 // Switch to chosen process. It is the process's jo\ +b) 279.5849 Tj +0 -284.8008 Td +(1827 // to release proc_table_lock and then reacquire it) 270.8479 Tj +0 -294.2942 Td +(1828 // before jumping back to us.) 174.7406 Tj +0 -303.7875 Td +(1829 c->curproc = p;) 113.5814 Tj +0 -313.2809 Td +(1830 setupsegs\(p\);) 104.8443 Tj +0 -322.7743 Td +(1831 p->state = RUNNING;) 131.0554 Tj +0 -332.2676 Td +(1832 swtch\(&c->context, &p->context\);) 187.8461 Tj 0 -341.761 Td -(1833 setupsegs\(0\);) 104.844 Tj -0 -351.254 Td -(1834 }) 43.6851 Tj -0 -360.748 Td -(1835 ) 21.8426 Tj -0 -370.241 Td -(1836 release\(&proc_table_lock\);) 152.898 Tj -0 -379.734 Td -(1837 }) 34.9481 Tj -0 -389.228 Td -(1838 }) 26.2111 Tj -0 -398.721 Td -(1839 ) 21.8426 Tj -0 -408.214 Td +(1833 ) 21.8426 Tj +0 -351.2543 Td +(1834 // Process is done running for now.) 200.9517 Tj +0 -360.7477 Td +(1835 // It should have changed its p->state before coming\ + back.) 301.4275 Tj +0 -370.2411 Td +(1836 c->curproc = 0;) 113.5814 Tj +0 -379.7344 Td +(1837 setupsegs\(0\);) 104.8443 Tj +0 -389.2278 Td +(1838 }) 43.6851 Tj +0 -398.7211 Td +(1839 release\(&proc_table_lock\);) 152.898 Tj +0 -408.2145 Td (1840 ) 21.8426 Tj -0 -417.708 Td -(1841 ) 21.8426 Tj -0 -427.201 Td -(1842 ) 21.8426 Tj -0 -436.695 Td +0 -417.7079 Td +(1841 }) 34.9481 Tj +0 -427.2012 Td +(1842 }) 26.2111 Tj +0 -436.6946 Td (1843 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (1844 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1845 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1846 ) 21.8426 Tj 0 -474.668 Td (1847 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1848 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1849 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 18) 34.9481 Tj Q Q @@ -8673,14 +8692,14 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 6) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 6) 161.635 Tj 0 -28.4801 Td -(1850 // Enter scheduler. Must already hold proc_table_lock) 257.742 Tj +(1850 // Enter scheduler. Must already hold proc_table_lock) 257.7424 Tj 0 -37.9735 Td -(1851 // and have changed curproc[cpu\(\)]->state.) 205.32 Tj +(1851 // and have changed curproc[cpu\(\)]->state.) 205.3202 Tj 0 -47.4668 Td (1852 void) 39.3166 Tj 0 -56.9602 Td @@ -8688,96 +8707,96 @@ q 0 -66.4535 Td (1854 {) 26.2111 Tj 0 -75.9469 Td -(1855 if\(cp->state == RUNNING\)) 135.424 Tj +(1855 if\(read_eflags\(\)&FL_IF\)) 131.0554 Tj 0 -85.4403 Td -(1856 panic\("sched running"\);) 139.792 Tj +(1856 panic\("sched interruptible"\);) 166.0035 Tj 0 -94.9336 Td -(1857 if\(!holding\(&proc_table_lock\)\)) 161.635 Tj +(1857 if\(cp->state == RUNNING\)) 135.4239 Tj 0 -104.427 Td -(1858 panic\("sched proc_table_lock"\);) 174.741 Tj -0 -113.92 Td -(1859 if\(cpus[cpu\(\)].nlock != 1\)) 144.161 Tj -0 -123.414 Td -(1860 panic\("sched locks"\);) 131.055 Tj -0 -132.907 Td -(1861 ) 21.8426 Tj -0 -142.4 Td -(1862 swtch\(&cp->context, &cpus[cpu\(\)].context\);) 214.057 Tj -0 -151.894 Td -(1863 }) 26.2111 Tj -0 -161.387 Td -(1864 ) 21.8426 Tj -0 -170.88 Td -(1865 // Give up the CPU for one scheduling round.) 214.057 Tj -0 -180.374 Td -(1866 void) 39.3166 Tj -0 -189.867 Td -(1867 yield\(void\)) 69.8962 Tj -0 -199.361 Td -(1868 {) 26.2111 Tj -0 -208.854 Td -(1869 acquire\(&proc_table_lock\);) 144.161 Tj -0 -218.347 Td -(1870 cp->state = RUNNABLE;) 122.318 Tj -0 -227.841 Td -(1871 sched\(\);) 65.5277 Tj +(1858 panic\("sched running"\);) 139.7925 Tj +0 -113.9203 Td +(1859 if\(!holding\(&proc_table_lock\)\)) 161.635 Tj +0 -123.4137 Td +(1860 panic\("sched proc_table_lock"\);) 174.7406 Tj +0 -132.9071 Td +(1861 if\(cpus[cpu\(\)].ncli != 1\)) 139.7925 Tj +0 -142.4004 Td +(1862 panic\("sched locks"\);) 131.0554 Tj +0 -151.8938 Td +(1863 ) 21.8426 Tj +0 -161.3871 Td +(1864 swtch\(&cp->context, &cpus[cpu\(\)].context\);) 214.0572 Tj +0 -170.8805 Td +(1865 }) 26.2111 Tj +0 -180.3739 Td +(1866 ) 21.8426 Tj +0 -189.8672 Td +(1867 // Give up the CPU for one scheduling round.) 214.0572 Tj +0 -199.3606 Td +(1868 void) 39.3166 Tj +0 -208.8539 Td +(1869 yield\(void\)) 69.8962 Tj +0 -218.3473 Td +(1870 {) 26.2111 Tj +0 -227.8407 Td +(1871 acquire\(&proc_table_lock\);) 144.161 Tj 0 -237.334 Td -(1872 release\(&proc_table_lock\);) 144.161 Tj -0 -246.827 Td -(1873 }) 26.2111 Tj -0 -256.321 Td -(1874 ) 21.8426 Tj -0 -265.814 Td -(1875 // A fork child's very first scheduling by scheduler\(\)) 257.742 Tj -0 -275.307 Td -(1876 // will longjmp here. "Return" to user space.) 222.794 Tj -0 -284.801 Td -(1877 void) 39.3166 Tj -0 -294.294 Td -(1878 forkret\(void\)) 78.6333 Tj -0 -303.788 Td -(1879 {) 26.2111 Tj -0 -313.281 Td -(1880 // Still holding proc_table_lock from scheduler.) 240.268 Tj -0 -322.774 Td -(1881 release\(&proc_table_lock\);) 144.161 Tj -0 -332.268 Td -(1882 ) 21.8426 Tj +(1872 cp->state = RUNNABLE;) 122.3184 Tj +0 -246.8274 Td +(1873 sched\(\);) 65.5277 Tj +0 -256.3207 Td +(1874 release\(&proc_table_lock\);) 144.161 Tj +0 -265.8141 Td +(1875 }) 26.2111 Tj +0 -275.3075 Td +(1876 ) 21.8426 Tj +0 -284.8008 Td +(1877 // A fork child's very first scheduling by scheduler\(\)) 257.7424 Tj +0 -294.2942 Td +(1878 // will swtch here. "Return" to user space.) 214.0572 Tj +0 -303.7875 Td +(1879 void) 39.3166 Tj +0 -313.2809 Td +(1880 forkret\(void\)) 78.6333 Tj +0 -322.7743 Td +(1881 {) 26.2111 Tj +0 -332.2676 Td +(1882 // Still holding proc_table_lock from scheduler.) 240.2683 Tj 0 -341.761 Td -(1883 // Jump into assembly, never to return.) 200.952 Tj -0 -351.254 Td -(1884 forkret1\(cp->tf\);) 104.844 Tj -0 -360.748 Td -(1885 }) 26.2111 Tj -0 -370.241 Td -(1886 ) 21.8426 Tj -0 -379.734 Td -(1887 ) 21.8426 Tj -0 -389.228 Td +(1883 release\(&proc_table_lock\);) 144.161 Tj +0 -351.2543 Td +(1884 ) 21.8426 Tj +0 -360.7477 Td +(1885 // Jump into assembly, never to return.) 200.9517 Tj +0 -370.2411 Td +(1886 forkret1\(cp->tf\);) 104.8443 Tj +0 -379.7344 Td +(1887 }) 26.2111 Tj +0 -389.2278 Td (1888 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (1889 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (1890 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (1891 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (1892 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (1893 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (1894 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1895 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1896 ) 21.8426 Tj 0 -474.668 Td (1897 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1898 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1899 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 18) 34.9481 Tj Q Q @@ -8806,8 +8825,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -8822,111 +8840,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 7) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 7) 161.635 Tj 0 -28.4801 Td -(1900 // Atomically release lock and sleep on chan.) 218.426 Tj +(1900 // Atomically release lock and sleep on chan.) 218.4257 Tj 0 -37.9735 Td -(1901 // Reacquires lock when reawakened.) 174.741 Tj +(1901 // Reacquires lock when reawakened.) 174.7406 Tj 0 -47.4668 Td (1902 void) 39.3166 Tj 0 -56.9602 Td -(1903 sleep\(void *chan, struct spinlock *lk\)) 187.846 Tj +(1903 sleep\(void *chan, struct spinlock *lk\)) 187.8461 Tj 0 -66.4535 Td (1904 {) 26.2111 Tj 0 -75.9469 Td (1905 if\(cp == 0\)) 78.6333 Tj 0 -85.4403 Td -(1906 panic\("sleep"\);) 104.844 Tj +(1906 panic\("sleep"\);) 104.8443 Tj 0 -94.9336 Td (1907 ) 21.8426 Tj 0 -104.427 Td (1908 if\(lk == 0\)) 78.6333 Tj -0 -113.92 Td +0 -113.9203 Td (1909 panic\("sleep without lk"\);) 152.898 Tj -0 -123.414 Td +0 -123.4137 Td (1910 ) 21.8426 Tj -0 -132.907 Td -(1911 // Must acquire proc_table_lock in order to) 218.426 Tj -0 -142.4 Td -(1912 // change p->state and then call sched.) 200.952 Tj -0 -151.894 Td -(1913 // Once we hold proc_table_lock, we can be) 214.057 Tj -0 -161.387 Td -(1914 // guaranteed that we won't miss any wakeup) 218.426 Tj -0 -170.88 Td -(1915 // \(wakeup runs with proc_table_lock locked\),) 227.163 Tj -0 -180.374 Td +0 -132.9071 Td +(1911 // Must acquire proc_table_lock in order to) 218.4257 Tj +0 -142.4004 Td +(1912 // change p->state and then call sched.) 200.9517 Tj +0 -151.8938 Td +(1913 // Once we hold proc_table_lock, we can be) 214.0572 Tj +0 -161.3871 Td +(1914 // guaranteed that we won't miss any wakeup) 218.4257 Tj +0 -170.8805 Td +(1915 // \(wakeup runs with proc_table_lock locked\),) 227.1628 Tj +0 -180.3739 Td (1916 // so it's okay to release lk.) 161.635 Tj -0 -189.867 Td -(1917 if\(lk != &proc_table_lock\){) 148.529 Tj -0 -199.361 Td +0 -189.8672 Td +(1917 if\(lk != &proc_table_lock\){) 148.5295 Tj +0 -199.3606 Td (1918 acquire\(&proc_table_lock\);) 152.898 Tj -0 -208.854 Td +0 -208.8539 Td (1919 release\(lk\);) 91.7388 Tj -0 -218.347 Td +0 -218.3473 Td (1920 }) 34.9481 Tj -0 -227.841 Td +0 -227.8407 Td (1921 ) 21.8426 Tj 0 -237.334 Td (1922 // Go to sleep.) 96.1073 Tj -0 -246.827 Td -(1923 cp->chan = chan;) 100.476 Tj -0 -256.321 Td -(1924 cp->state = SLEEPING;) 122.318 Tj -0 -265.814 Td +0 -246.8274 Td +(1923 cp->chan = chan;) 100.4758 Tj +0 -256.3207 Td +(1924 cp->state = SLEEPING;) 122.3184 Tj +0 -265.8141 Td (1925 sched\(\);) 65.5277 Tj -0 -275.307 Td +0 -275.3075 Td (1926 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (1927 // Tidy up.) 78.6333 Tj -0 -294.294 Td +0 -294.2942 Td (1928 cp->chan = 0;) 87.3703 Tj -0 -303.788 Td +0 -303.7875 Td (1929 ) 21.8426 Tj -0 -313.281 Td -(1930 // Reacquire original lock.) 148.529 Tj -0 -322.774 Td -(1931 if\(lk != &proc_table_lock\){) 148.529 Tj -0 -332.268 Td +0 -313.2809 Td +(1930 // Reacquire original lock.) 148.5295 Tj +0 -322.7743 Td +(1931 if\(lk != &proc_table_lock\){) 148.5295 Tj +0 -332.2676 Td (1932 release\(&proc_table_lock\);) 152.898 Tj 0 -341.761 Td (1933 acquire\(lk\);) 91.7388 Tj -0 -351.254 Td +0 -351.2543 Td (1934 }) 34.9481 Tj -0 -360.748 Td +0 -360.7477 Td (1935 }) 26.2111 Tj -0 -370.241 Td +0 -370.2411 Td (1936 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (1937 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (1938 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (1939 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (1940 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (1941 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (1942 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (1943 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (1944 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1945 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1946 ) 21.8426 Tj 0 -474.668 Td (1947 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1948 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1949 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 19) 34.9481 Tj Q Q @@ -8941,18 +8959,18 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 8) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 8) 161.635 Tj 0 -28.4801 Td -(1950 // Wake up all processes sleeping on chan.) 205.32 Tj +(1950 // Wake up all processes sleeping on chan.) 205.3202 Tj 0 -37.9735 Td (1951 // Proc_table_lock must be held.) 161.635 Tj 0 -47.4668 Td (1952 static void) 69.8962 Tj 0 -56.9602 Td -(1953 wakeup1\(void *chan\)) 104.844 Tj +(1953 wakeup1\(void *chan\)) 104.8443 Tj 0 -66.4535 Td (1954 {) 26.2111 Tj 0 -75.9469 Td @@ -8960,92 +8978,92 @@ q 0 -85.4403 Td (1956 ) 21.8426 Tj 0 -94.9336 Td -(1957 for\(p = proc; p < &proc[NPROC]; p++\)) 187.846 Tj +(1957 for\(p = proc; p < &proc[NPROC]; p++\)) 187.8461 Tj 0 -104.427 Td -(1958 if\(p->state == SLEEPING && p->chan == chan\)) 227.163 Tj -0 -113.92 Td -(1959 p->state = RUNNABLE;) 135.424 Tj -0 -123.414 Td +(1958 if\(p->state == SLEEPING && p->chan == chan\)) 227.1628 Tj +0 -113.9203 Td +(1959 p->state = RUNNABLE;) 135.4239 Tj +0 -123.4137 Td (1960 }) 26.2111 Tj -0 -132.907 Td +0 -132.9071 Td (1961 ) 21.8426 Tj -0 -142.4 Td -(1962 // Wake up all processes sleeping on chan.) 205.32 Tj -0 -151.894 Td -(1963 // Proc_table_lock is acquired and released.) 214.057 Tj -0 -161.387 Td +0 -142.4004 Td +(1962 // Wake up all processes sleeping on chan.) 205.3202 Tj +0 -151.8938 Td +(1963 // Proc_table_lock is acquired and released.) 214.0572 Tj +0 -161.3871 Td (1964 void) 39.3166 Tj -0 -170.88 Td -(1965 wakeup\(void *chan\)) 100.476 Tj -0 -180.374 Td +0 -170.8805 Td +(1965 wakeup\(void *chan\)) 100.4758 Tj +0 -180.3739 Td (1966 {) 26.2111 Tj -0 -189.867 Td +0 -189.8672 Td (1967 acquire\(&proc_table_lock\);) 144.161 Tj -0 -199.361 Td +0 -199.3606 Td (1968 wakeup1\(chan\);) 91.7388 Tj -0 -208.854 Td +0 -208.8539 Td (1969 release\(&proc_table_lock\);) 144.161 Tj -0 -218.347 Td +0 -218.3473 Td (1970 }) 26.2111 Tj -0 -227.841 Td +0 -227.8407 Td (1971 ) 21.8426 Tj 0 -237.334 Td -(1972 // Kill the process with the given pid.) 192.215 Tj -0 -246.827 Td -(1973 // Process won't actually exit until it returns) 227.163 Tj -0 -256.321 Td -(1974 // to user space \(see trap in trap.c\).) 187.846 Tj -0 -265.814 Td +(1972 // Kill the process with the given pid.) 192.2146 Tj +0 -246.8274 Td +(1973 // Process won't actually exit until it returns) 227.1628 Tj +0 -256.3207 Td +(1974 // to user space \(see trap in trap.c\).) 187.8461 Tj +0 -265.8141 Td (1975 int) 34.9481 Tj -0 -275.307 Td +0 -275.3075 Td (1976 kill\(int pid\)) 78.6333 Tj -0 -284.801 Td +0 -284.8008 Td (1977 {) 26.2111 Tj -0 -294.294 Td +0 -294.2942 Td (1978 struct proc *p;) 96.1073 Tj -0 -303.788 Td +0 -303.7875 Td (1979 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (1980 acquire\(&proc_table_lock\);) 144.161 Tj -0 -322.774 Td -(1981 for\(p = proc; p < &proc[NPROC]; p++\){) 192.215 Tj -0 -332.268 Td -(1982 if\(p->pid == pid\){) 117.95 Tj +0 -322.7743 Td +(1981 for\(p = proc; p < &proc[NPROC]; p++\){) 192.2146 Tj +0 -332.2676 Td +(1982 if\(p->pid == pid\){) 117.9499 Tj 0 -341.761 Td -(1983 p->killed = 1;) 109.213 Tj -0 -351.254 Td -(1984 // Wake process from sleep if necessary.) 222.794 Tj -0 -360.748 Td +(1983 p->killed = 1;) 109.2129 Tj +0 -351.2543 Td +(1984 // Wake process from sleep if necessary.) 222.7942 Tj +0 -360.7477 Td (1985 if\(p->state == SLEEPING\)) 152.898 Tj -0 -370.241 Td +0 -370.2411 Td (1986 p->state = RUNNABLE;) 144.161 Tj -0 -379.734 Td +0 -379.7344 Td (1987 release\(&proc_table_lock\);) 161.635 Tj -0 -389.228 Td +0 -389.2278 Td (1988 return 0;) 87.3703 Tj -0 -398.721 Td +0 -398.7211 Td (1989 }) 43.6851 Tj -0 -408.214 Td +0 -408.2145 Td (1990 }) 34.9481 Tj -0 -417.708 Td +0 -417.7079 Td (1991 release\(&proc_table_lock\);) 144.161 Tj -0 -427.201 Td +0 -427.2012 Td (1992 return -1;) 74.2647 Tj -0 -436.695 Td +0 -436.6946 Td (1993 }) 26.2111 Tj -0 -446.188 Td +0 -446.1879 Td (1994 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (1995 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (1996 ) 21.8426 Tj 0 -474.668 Td (1997 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (1998 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (1999 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 19) 34.9481 Tj Q Q @@ -9074,8 +9092,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -9090,17 +9107,17 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 9) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 9) 161.635 Tj 0 -28.4801 Td -(2000 // Exit the current process. Does not return.) 222.794 Tj +(2000 // Exit the current process. Does not return.) 222.7942 Tj 0 -37.9735 Td -(2001 // Exited processes remain in the zombie state) 222.794 Tj +(2001 // Exited processes remain in the zombie state) 222.7942 Tj 0 -47.4668 Td (2002 // until their parent calls wait\(\) to find out they exit\ -ed.) 279.585 Tj +ed.) 279.5849 Tj 0 -56.9602 Td (2003 void) 39.3166 Tj 0 -66.4535 Td @@ -9113,89 +9130,89 @@ ed.) 279.585 Tj (2007 int fd;) 61.1592 Tj 0 -104.427 Td (2008 ) 21.8426 Tj -0 -113.92 Td -(2009 if\(cp == initproc\)) 109.213 Tj -0 -123.414 Td -(2010 panic\("init exiting"\);) 135.424 Tj -0 -132.907 Td +0 -113.9203 Td +(2009 if\(cp == initproc\)) 109.2129 Tj +0 -123.4137 Td +(2010 panic\("init exiting"\);) 135.4239 Tj +0 -132.9071 Td (2011 ) 21.8426 Tj -0 -142.4 Td -(2012 // Close all open files.) 135.424 Tj -0 -151.894 Td -(2013 for\(fd = 0; fd < NOFILE; fd++\){) 166.004 Tj -0 -161.387 Td -(2014 if\(cp->ofile[fd]\){) 117.95 Tj -0 -170.88 Td -(2015 fileclose\(cp->ofile[fd]\);) 157.267 Tj -0 -180.374 Td -(2016 cp->ofile[fd] = 0;) 126.687 Tj -0 -189.867 Td +0 -142.4004 Td +(2012 // Close all open files.) 135.4239 Tj +0 -151.8938 Td +(2013 for\(fd = 0; fd < NOFILE; fd++\){) 166.0035 Tj +0 -161.3871 Td +(2014 if\(cp->ofile[fd]\){) 117.9499 Tj +0 -170.8805 Td +(2015 fileclose\(cp->ofile[fd]\);) 157.2665 Tj +0 -180.3739 Td +(2016 cp->ofile[fd] = 0;) 126.6869 Tj +0 -189.8672 Td (2017 }) 43.6851 Tj -0 -199.361 Td +0 -199.3606 Td (2018 }) 34.9481 Tj -0 -208.854 Td +0 -208.8539 Td (2019 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (2020 iput\(cp->cwd\);) 91.7388 Tj -0 -227.841 Td +0 -227.8407 Td (2021 cp->cwd = 0;) 83.0018 Tj 0 -237.334 Td (2022 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (2023 acquire\(&proc_table_lock\);) 144.161 Tj -0 -256.321 Td +0 -256.3207 Td (2024 ) 21.8426 Tj -0 -265.814 Td -(2025 // Parent might be sleeping in proc_wait.) 209.689 Tj -0 -275.307 Td -(2026 wakeup1\(cp->parent\);) 117.95 Tj -0 -284.801 Td +0 -265.8141 Td +(2025 // Parent might be sleeping in wait\(\).) 196.5831 Tj +0 -275.3075 Td +(2026 wakeup1\(cp->parent\);) 117.9499 Tj +0 -284.8008 Td (2027 ) 21.8426 Tj -0 -294.294 Td -(2028 // Pass abandoned children to init.) 183.478 Tj -0 -303.788 Td -(2029 for\(p = proc; p < &proc[NPROC]; p++\){) 192.215 Tj -0 -313.281 Td -(2030 if\(p->parent == cp\){) 126.687 Tj -0 -322.774 Td -(2031 p->parent = initproc;) 139.792 Tj -0 -332.268 Td +0 -294.2942 Td +(2028 // Pass abandoned children to init.) 183.4776 Tj +0 -303.7875 Td +(2029 for\(p = proc; p < &proc[NPROC]; p++\){) 192.2146 Tj +0 -313.2809 Td +(2030 if\(p->parent == cp\){) 126.6869 Tj +0 -322.7743 Td +(2031 p->parent = initproc;) 139.7925 Tj +0 -332.2676 Td (2032 if\(p->state == ZOMBIE\)) 144.161 Tj 0 -341.761 Td -(2033 wakeup1\(initproc\);) 135.424 Tj -0 -351.254 Td +(2033 wakeup1\(initproc\);) 135.4239 Tj +0 -351.2543 Td (2034 }) 43.6851 Tj -0 -360.748 Td +0 -360.7477 Td (2035 }) 34.9481 Tj -0 -370.241 Td +0 -370.2411 Td (2036 ) 21.8426 Tj -0 -379.734 Td -(2037 // Jump into the scheduler, never to return.) 222.794 Tj -0 -389.228 Td +0 -379.7344 Td +(2037 // Jump into the scheduler, never to return.) 222.7942 Tj +0 -389.2278 Td (2038 cp->killed = 0;) 96.1073 Tj -0 -398.721 Td -(2039 cp->state = ZOMBIE;) 113.581 Tj -0 -408.214 Td +0 -398.7211 Td +(2039 cp->state = ZOMBIE;) 113.5814 Tj +0 -408.2145 Td (2040 sched\(\);) 65.5277 Tj -0 -417.708 Td -(2041 panic\("zombie exit"\);) 122.318 Tj -0 -427.201 Td +0 -417.7079 Td +(2041 panic\("zombie exit"\);) 122.3184 Tj +0 -427.2012 Td (2042 }) 26.2111 Tj -0 -436.695 Td +0 -436.6946 Td (2043 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2044 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2045 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2046 ) 21.8426 Tj 0 -474.668 Td (2047 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2048 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2049 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 20) 34.9481 Tj Q Q @@ -9210,14 +9227,14 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 10) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 10) 166.0035 Tj 0 -28.4801 Td -(2050 // Wait for a child process to exit and return its pid.) 262.111 Tj +(2050 // Wait for a child process to exit and return its pid.) 262.1109 Tj 0 -37.9735 Td -(2051 // Return -1 if this process has no children.) 218.426 Tj +(2051 // Return -1 if this process has no children.) 218.4257 Tj 0 -47.4668 Td (2052 int) 34.9481 Tj 0 -56.9602 Td @@ -9227,95 +9244,95 @@ q 0 -75.9469 Td (2055 struct proc *p;) 96.1073 Tj 0 -85.4403 Td -(2056 int i, havekids, pid;) 122.318 Tj +(2056 int i, havekids, pid;) 122.3184 Tj 0 -94.9336 Td (2057 ) 21.8426 Tj 0 -104.427 Td (2058 acquire\(&proc_table_lock\);) 144.161 Tj -0 -113.92 Td +0 -113.9203 Td (2059 for\(;;\){) 65.5277 Tj -0 -123.414 Td -(2060 // Scan through table looking for zombie children.) 257.742 Tj -0 -132.907 Td +0 -123.4137 Td +(2060 // Scan through table looking for zombie children.) 257.7424 Tj +0 -132.9071 Td (2061 havekids = 0;) 96.1073 Tj -0 -142.4 Td -(2062 for\(i = 0; i < NPROC; i++\){) 157.267 Tj -0 -151.894 Td -(2063 p = &proc[i];) 104.844 Tj -0 -161.387 Td +0 -142.4004 Td +(2062 for\(i = 0; i < NPROC; i++\){) 157.2665 Tj +0 -151.8938 Td +(2063 p = &proc[i];) 104.8443 Tj +0 -161.3871 Td (2064 if\(p->state == UNUSED\)) 144.161 Tj -0 -170.88 Td +0 -170.8805 Td (2065 continue;) 96.1073 Tj -0 -180.374 Td -(2066 if\(p->parent == cp\){) 135.424 Tj -0 -189.867 Td -(2067 if\(p->state == ZOMBIE\){) 157.267 Tj -0 -199.361 Td -(2068 // Found one.) 122.318 Tj -0 -208.854 Td -(2069 kfree\(p->mem, p->sz\);) 157.267 Tj -0 -218.347 Td -(2070 kfree\(p->kstack, KSTACKSIZE\);) 192.215 Tj -0 -227.841 Td -(2071 pid = p->pid;) 122.318 Tj +0 -180.3739 Td +(2066 if\(p->parent == cp\){) 135.4239 Tj +0 -189.8672 Td +(2067 if\(p->state == ZOMBIE\){) 157.2665 Tj +0 -199.3606 Td +(2068 // Found one.) 122.3184 Tj +0 -208.8539 Td +(2069 kfree\(p->mem, p->sz\);) 157.2665 Tj +0 -218.3473 Td +(2070 kfree\(p->kstack, KSTACKSIZE\);) 192.2146 Tj +0 -227.8407 Td +(2071 pid = p->pid;) 122.3184 Tj 0 -237.334 Td (2072 p->state = UNUSED;) 144.161 Tj -0 -246.827 Td -(2073 p->pid = 0;) 113.581 Tj -0 -256.321 Td -(2074 p->parent = 0;) 126.687 Tj -0 -265.814 Td -(2075 p->name[0] = 0;) 131.055 Tj -0 -275.307 Td -(2076 release\(&proc_table_lock\);) 179.109 Tj -0 -284.801 Td -(2077 return pid;) 113.581 Tj -0 -294.294 Td +0 -246.8274 Td +(2073 p->pid = 0;) 113.5814 Tj +0 -256.3207 Td +(2074 p->parent = 0;) 126.6869 Tj +0 -265.8141 Td +(2075 p->name[0] = 0;) 131.0554 Tj +0 -275.3075 Td +(2076 release\(&proc_table_lock\);) 179.1091 Tj +0 -284.8008 Td +(2077 return pid;) 113.5814 Tj +0 -294.2942 Td (2078 }) 61.1592 Tj -0 -303.788 Td -(2079 havekids = 1;) 113.581 Tj -0 -313.281 Td +0 -303.7875 Td +(2079 havekids = 1;) 113.5814 Tj +0 -313.2809 Td (2080 }) 52.4222 Tj -0 -322.774 Td +0 -322.7743 Td (2081 }) 43.6851 Tj -0 -332.268 Td +0 -332.2676 Td (2082 ) 21.8426 Tj 0 -341.761 Td -(2083 // No point waiting if we don't have any children.) 257.742 Tj -0 -351.254 Td +(2083 // No point waiting if we don't have any children.) 257.7424 Tj +0 -351.2543 Td (2084 if\(!havekids || cp->killed\){) 161.635 Tj -0 -360.748 Td +0 -360.7477 Td (2085 release\(&proc_table_lock\);) 161.635 Tj -0 -370.241 Td +0 -370.2411 Td (2086 return -1;) 91.7388 Tj -0 -379.734 Td +0 -379.7344 Td (2087 }) 43.6851 Tj -0 -389.228 Td +0 -389.2278 Td (2088 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2089 // Wait for children to exit. \(See wakeup1 call in p\ roc_exit.\)) 314.533 Tj -0 -408.214 Td +0 -408.2145 Td (2090 sleep\(cp, &proc_table_lock\);) 161.635 Tj -0 -417.708 Td +0 -417.7079 Td (2091 }) 34.9481 Tj -0 -427.201 Td +0 -427.2012 Td (2092 }) 26.2111 Tj -0 -436.695 Td +0 -436.6946 Td (2093 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2094 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2095 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2096 ) 21.8426 Tj 0 -474.668 Td (2097 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2098 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2099 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 20) 34.9481 Tj Q Q @@ -9344,8 +9361,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -9360,16 +9376,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/proc.c Page 11) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/proc.c Page 11) 166.0035 Tj 0 -28.4801 Td -(2100 // Print a process listing to console. For debugging.) 257.742 Tj +(2100 // Print a process listing to console. For debugging.) 257.7424 Tj 0 -37.9735 Td -(2101 // Runs when user types ^P on console.) 187.846 Tj +(2101 // Runs when user types ^P on console.) 187.8461 Tj 0 -47.4668 Td -(2102 // No lock to avoid wedging a stuck machine further.) 249.005 Tj +(2102 // No lock to avoid wedging a stuck machine further.) 249.0053 Tj 0 -56.9602 Td (2103 void) 39.3166 Tj 0 -66.4535 Td @@ -9377,95 +9393,95 @@ q 0 -75.9469 Td (2105 {) 26.2111 Tj 0 -85.4403 Td -(2106 static char *states[] = {) 139.792 Tj +(2106 static char *states[] = {) 139.7925 Tj 0 -94.9336 Td -(2107 [UNUSED] "unused",) 122.318 Tj +(2107 [UNUSED] "unused",) 122.3184 Tj 0 -104.427 Td -(2108 [EMBRYO] "embryo",) 122.318 Tj -0 -113.92 Td -(2109 [SLEEPING] "sleep ",) 122.318 Tj -0 -123.414 Td -(2110 [RUNNABLE] "runble",) 122.318 Tj -0 -132.907 Td -(2111 [RUNNING] "run ",) 122.318 Tj -0 -142.4 Td -(2112 [ZOMBIE] "zombie") 117.95 Tj -0 -151.894 Td +(2108 [EMBRYO] "embryo",) 122.3184 Tj +0 -113.9203 Td +(2109 [SLEEPING] "sleep ",) 122.3184 Tj +0 -123.4137 Td +(2110 [RUNNABLE] "runble",) 122.3184 Tj +0 -132.9071 Td +(2111 [RUNNING] "run ",) 122.3184 Tj +0 -142.4004 Td +(2112 [ZOMBIE] "zombie") 117.9499 Tj +0 -151.8938 Td (2113 };) 39.3166 Tj -0 -161.387 Td +0 -161.3871 Td (2114 int i, j;) 69.8962 Tj -0 -170.88 Td +0 -170.8805 Td (2115 struct proc *p;) 96.1073 Tj -0 -180.374 Td +0 -180.3739 Td (2116 char *state;) 83.0018 Tj -0 -189.867 Td +0 -189.8672 Td (2117 uint pc[10];) 83.0018 Tj -0 -199.361 Td +0 -199.3606 Td (2118 ) 21.8426 Tj -0 -208.854 Td -(2119 for\(i = 0; i < NPROC; i++\){) 148.529 Tj -0 -218.347 Td +0 -208.8539 Td +(2119 for\(i = 0; i < NPROC; i++\){) 148.5295 Tj +0 -218.3473 Td (2120 p = &proc[i];) 96.1073 Tj -0 -227.841 Td -(2121 if\(p->state == UNUSED\)) 135.424 Tj +0 -227.8407 Td +(2121 if\(p->state == UNUSED\)) 135.4239 Tj 0 -237.334 Td (2122 continue;) 87.3703 Tj -0 -246.827 Td +0 -246.8274 Td (2123 if\(p->state >= 0 && p->state < NELEM\(states\) && sta\ -tes[p->state]\)) 323.27 Tj -0 -256.321 Td -(2124 state = states[p->state];) 157.267 Tj -0 -265.814 Td +tes[p->state]\)) 323.2701 Tj +0 -256.3207 Td +(2124 state = states[p->state];) 157.2665 Tj +0 -265.8141 Td (2125 else) 56.7907 Tj -0 -275.307 Td -(2126 state = "???";) 109.213 Tj -0 -284.801 Td -(2127 cprintf\("%d %s %s", p->pid, state, p->name\);) 231.531 Tj -0 -294.294 Td -(2128 if\(p->state == SLEEPING\){) 148.529 Tj -0 -303.788 Td -(2129 getcallerpcs\(\(uint*\)p->context.ebp+2, pc\);) 231.531 Tj -0 -313.281 Td -(2130 for\(j=0; j<10 && pc[j] != 0; j++\)) 192.215 Tj -0 -322.774 Td +0 -275.3075 Td +(2126 state = "???";) 109.2129 Tj +0 -284.8008 Td +(2127 cprintf\("%d %s %s", p->pid, state, p->name\);) 231.5313 Tj +0 -294.2942 Td +(2128 if\(p->state == SLEEPING\){) 148.5295 Tj +0 -303.7875 Td +(2129 getcallerpcs\(\(uint*\)p->context.ebp+2, pc\);) 231.5313 Tj +0 -313.2809 Td +(2130 for\(j=0; j<10 && pc[j] != 0; j++\)) 192.2146 Tj +0 -322.7743 Td (2131 cprintf\(" %p", pc[j]\);) 152.898 Tj -0 -332.268 Td +0 -332.2676 Td (2132 }) 43.6851 Tj 0 -341.761 Td -(2133 cprintf\("\\n"\);) 100.476 Tj -0 -351.254 Td +(2133 cprintf\("\\n"\);) 100.4758 Tj +0 -351.2543 Td (2134 }) 34.9481 Tj -0 -360.748 Td +0 -360.7477 Td (2135 }) 26.2111 Tj -0 -370.241 Td +0 -370.2411 Td (2136 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (2137 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2138 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2139 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2140 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2141 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2142 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2143 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2144 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2145 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2146 ) 21.8426 Tj 0 -474.668 Td (2147 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2148 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2149 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 21) 34.9481 Tj Q Q @@ -9480,19 +9496,19 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/swtch.S Page 1) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/swtch.S Page 1) 166.0035 Tj 0 -28.4801 Td (2150 # void swtch\(struct context *old, struct context *new\)\ -;) 270.848 Tj +;) 270.8479 Tj 0 -37.9735 Td (2151 #) 26.2111 Tj 0 -47.4668 Td -(2152 # Save current register context in old) 187.846 Tj +(2152 # Save current register context in old) 187.8461 Tj 0 -56.9602 Td -(2153 # and then load register context from new.) 205.32 Tj +(2153 # and then load register context from new.) 205.3202 Tj 0 -66.4535 Td (2154 ) 21.8426 Tj 0 -75.9469 Td @@ -9500,93 +9516,93 @@ q 0 -85.4403 Td (2156 swtch:) 48.0537 Tj 0 -94.9336 Td -(2157 # Save old registers) 117.95 Tj +(2157 # Save old registers) 117.9499 Tj 0 -104.427 Td -(2158 movl 4\(%esp\), %eax) 109.213 Tj -0 -113.92 Td +(2158 movl 4\(%esp\), %eax) 109.2129 Tj +0 -113.9203 Td (2159 ) 21.8426 Tj -0 -123.414 Td -(2160 popl 0\(%eax\) # %eip) 117.95 Tj -0 -132.907 Td -(2161 movl %esp, 4\(%eax\)) 109.213 Tj -0 -142.4 Td -(2162 movl %ebx, 8\(%eax\)) 109.213 Tj -0 -151.894 Td -(2163 movl %ecx, 12\(%eax\)) 113.581 Tj -0 -161.387 Td -(2164 movl %edx, 16\(%eax\)) 113.581 Tj -0 -170.88 Td -(2165 movl %esi, 20\(%eax\)) 113.581 Tj -0 -180.374 Td -(2166 movl %edi, 24\(%eax\)) 113.581 Tj -0 -189.867 Td -(2167 movl %ebp, 28\(%eax\)) 113.581 Tj -0 -199.361 Td +0 -123.4137 Td +(2160 popl 0\(%eax\) # %eip) 117.9499 Tj +0 -132.9071 Td +(2161 movl %esp, 4\(%eax\)) 109.2129 Tj +0 -142.4004 Td +(2162 movl %ebx, 8\(%eax\)) 109.2129 Tj +0 -151.8938 Td +(2163 movl %ecx, 12\(%eax\)) 113.5814 Tj +0 -161.3871 Td +(2164 movl %edx, 16\(%eax\)) 113.5814 Tj +0 -170.8805 Td +(2165 movl %esi, 20\(%eax\)) 113.5814 Tj +0 -180.3739 Td +(2166 movl %edi, 24\(%eax\)) 113.5814 Tj +0 -189.8672 Td +(2167 movl %ebp, 28\(%eax\)) 113.5814 Tj +0 -199.3606 Td (2168 ) 21.8426 Tj -0 -208.854 Td -(2169 # Load new registers) 117.95 Tj -0 -218.347 Td +0 -208.8539 Td +(2169 # Load new registers) 117.9499 Tj +0 -218.3473 Td (2170 movl 4\(%esp\), %eax # not 8\(%esp\) - popped return ad\ dress above) 305.796 Tj -0 -227.841 Td +0 -227.8407 Td (2171 ) 21.8426 Tj 0 -237.334 Td -(2172 movl 28\(%eax\), %ebp) 113.581 Tj -0 -246.827 Td -(2173 movl 24\(%eax\), %edi) 113.581 Tj -0 -256.321 Td -(2174 movl 20\(%eax\), %esi) 113.581 Tj -0 -265.814 Td -(2175 movl 16\(%eax\), %edx) 113.581 Tj -0 -275.307 Td -(2176 movl 12\(%eax\), %ecx) 113.581 Tj -0 -284.801 Td -(2177 movl 8\(%eax\), %ebx) 109.213 Tj -0 -294.294 Td -(2178 movl 4\(%eax\), %esp) 109.213 Tj -0 -303.788 Td -(2179 pushl 0\(%eax\) # %eip) 122.318 Tj -0 -313.281 Td +(2172 movl 28\(%eax\), %ebp) 113.5814 Tj +0 -246.8274 Td +(2173 movl 24\(%eax\), %edi) 113.5814 Tj +0 -256.3207 Td +(2174 movl 20\(%eax\), %esi) 113.5814 Tj +0 -265.8141 Td +(2175 movl 16\(%eax\), %edx) 113.5814 Tj +0 -275.3075 Td +(2176 movl 12\(%eax\), %ecx) 113.5814 Tj +0 -284.8008 Td +(2177 movl 8\(%eax\), %ebx) 109.2129 Tj +0 -294.2942 Td +(2178 movl 4\(%eax\), %esp) 109.2129 Tj +0 -303.7875 Td +(2179 pushl 0\(%eax\) # %eip) 122.3184 Tj +0 -313.2809 Td (2180 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (2181 ret) 43.6851 Tj -0 -332.268 Td +0 -332.2676 Td (2182 ) 21.8426 Tj 0 -341.761 Td (2183 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (2184 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (2185 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (2186 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (2187 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2188 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2189 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2190 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2191 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2192 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2193 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2194 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2195 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2196 ) 21.8426 Tj 0 -474.668 Td (2197 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2198 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2199 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 21) 34.9481 Tj Q Q @@ -9615,8 +9631,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -9631,116 +9646,116 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/kalloc.c Page 1) 170.372 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/kalloc.c Page 1) 170.3721 Tj 0 -28.4801 Td -(2200 // Physical memory allocator, intended to allocate) 240.268 Tj +(2200 // Physical memory allocator, intended to allocate) 240.2683 Tj 0 -37.9735 Td (2201 // memory for user processes. Allocates in 4096-byte "page\ s".) 288.322 Tj 0 -47.4668 Td (2202 // Free list is kept sorted and combines adjacent pages in\ -to) 283.953 Tj +to) 283.9534 Tj 0 -56.9602 Td -(2203 // long runs, to make it easier to allocate big segments.) 270.848 Tj +(2203 // long runs, to make it easier to allocate big segments.) 270.8479 Tj 0 -66.4535 Td (2204 // One reason the page size is 4k is that the x86 segment \ -size) 292.69 Tj +size) 292.6905 Tj 0 -75.9469 Td -(2205 // granularity is 4k.) 113.581 Tj +(2205 // granularity is 4k.) 113.5814 Tj 0 -85.4403 Td (2206 ) 21.8426 Tj 0 -94.9336 Td -(2207 #include "types.h") 100.476 Tj +(2207 #include "types.h") 100.4758 Tj 0 -104.427 Td (2208 #include "defs.h") 96.1073 Tj -0 -113.92 Td -(2209 #include "param.h") 100.476 Tj -0 -123.414 Td -(2210 #include "spinlock.h") 113.581 Tj -0 -132.907 Td +0 -113.9203 Td +(2209 #include "param.h") 100.4758 Tj +0 -123.4137 Td +(2210 #include "spinlock.h") 113.5814 Tj +0 -132.9071 Td (2211 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (2212 struct spinlock kalloc_lock;) 144.161 Tj -0 -151.894 Td +0 -151.8938 Td (2213 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (2214 struct run {) 74.2647 Tj -0 -170.88 Td -(2215 struct run *next;) 104.844 Tj -0 -180.374 Td -(2216 int len; // bytes) 104.844 Tj -0 -189.867 Td +0 -170.8805 Td +(2215 struct run *next;) 104.8443 Tj +0 -180.3739 Td +(2216 int len; // bytes) 104.8443 Tj +0 -189.8672 Td (2217 };) 30.5796 Tj -0 -199.361 Td -(2218 struct run *freelist;) 113.581 Tj -0 -208.854 Td +0 -199.3606 Td +(2218 struct run *freelist;) 113.5814 Tj +0 -208.8539 Td (2219 ) 21.8426 Tj -0 -218.347 Td -(2220 // Initialize free list of physical pages.) 205.32 Tj -0 -227.841 Td -(2221 // This code cheats by just considering one megabyte of) 262.111 Tj +0 -218.3473 Td +(2220 // Initialize free list of physical pages.) 205.3202 Tj +0 -227.8407 Td +(2221 // This code cheats by just considering one megabyte of) 262.1109 Tj 0 -237.334 Td -(2222 // pages after _end. Real systems would determine the) 257.742 Tj -0 -246.827 Td +(2222 // pages after _end. Real systems would determine the) 257.7424 Tj +0 -246.8274 Td (2223 // amount of memory available in the system and use it all\ -.) 279.585 Tj -0 -256.321 Td +.) 279.5849 Tj +0 -256.3207 Td (2224 void) 39.3166 Tj -0 -265.814 Td +0 -265.8141 Td (2225 kinit\(void\)) 69.8962 Tj -0 -275.307 Td +0 -275.3075 Td (2226 {) 26.2111 Tj -0 -284.801 Td +0 -284.8008 Td (2227 extern int end;) 96.1073 Tj -0 -294.294 Td +0 -294.2942 Td (2228 uint mem;) 69.8962 Tj -0 -303.788 Td +0 -303.7875 Td (2229 char *start;) 83.0018 Tj -0 -313.281 Td +0 -313.2809 Td (2230 ) 21.8426 Tj -0 -322.774 Td -(2231 initlock\(&kalloc_lock, "kalloc"\);) 174.741 Tj -0 -332.268 Td -(2232 start = \(char*\) &end;) 122.318 Tj +0 -322.7743 Td +(2231 initlock\(&kalloc_lock, "kalloc"\);) 174.7406 Tj +0 -332.2676 Td +(2232 start = \(char*\) &end;) 122.3184 Tj 0 -341.761 Td (2233 start = \(char*\) \(\(\(uint\)start + PAGE\) & ~\(PAGE-1\ -\)\);) 253.374 Tj -0 -351.254 Td -(2234 mem = 256; // assume computer has 256 pages of RAM) 249.005 Tj -0 -360.748 Td -(2235 cprintf\("mem = %d\\n", mem * PAGE\);) 179.109 Tj -0 -370.241 Td -(2236 kfree\(start, mem * PAGE\);) 139.792 Tj -0 -379.734 Td +\)\);) 253.3738 Tj +0 -351.2543 Td +(2234 mem = 256; // assume computer has 256 pages of RAM) 249.0053 Tj +0 -360.7477 Td +(2235 cprintf\("mem = %d\\n", mem * PAGE\);) 179.1091 Tj +0 -370.2411 Td +(2236 kfree\(start, mem * PAGE\);) 139.7925 Tj +0 -379.7344 Td (2237 }) 26.2111 Tj -0 -389.228 Td +0 -389.2278 Td (2238 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2239 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2240 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2241 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2242 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2243 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2244 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2245 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2246 ) 21.8426 Tj 0 -474.668 Td (2247 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2248 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2249 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 22) 34.9481 Tj Q Q @@ -9755,113 +9770,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/kalloc.c Page 2) 170.372 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/kalloc.c Page 2) 170.3721 Tj 0 -28.4801 Td -(2250 // Free the len bytes of memory pointed at by v,) 231.531 Tj +(2250 // Free the len bytes of memory pointed at by v,) 231.5313 Tj 0 -37.9735 Td -(2251 // which normally should have been returned by a) 231.531 Tj +(2251 // which normally should have been returned by a) 231.5313 Tj 0 -47.4668 Td -(2252 // call to kalloc\(len\). \(The exception is when) 227.163 Tj +(2252 // call to kalloc\(len\). \(The exception is when) 227.1628 Tj 0 -56.9602 Td -(2253 // initializing the allocator; see kinit above.\)) 231.531 Tj +(2253 // initializing the allocator; see kinit above.\)) 231.5313 Tj 0 -66.4535 Td (2254 void) 39.3166 Tj 0 -75.9469 Td -(2255 kfree\(char *v, int len\)) 122.318 Tj +(2255 kfree\(char *v, int len\)) 122.3184 Tj 0 -85.4403 Td (2256 {) 26.2111 Tj 0 -94.9336 Td -(2257 struct run *r, *rend, **rp, *p, *pend;) 196.583 Tj +(2257 struct run *r, *rend, **rp, *p, *pend;) 196.5831 Tj 0 -104.427 Td (2258 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (2259 if\(len <= 0 || len % PAGE\)) 144.161 Tj -0 -123.414 Td -(2260 panic\("kfree"\);) 104.844 Tj -0 -132.907 Td +0 -123.4137 Td +(2260 panic\("kfree"\);) 104.8443 Tj +0 -132.9071 Td (2261 ) 21.8426 Tj -0 -142.4 Td -(2262 // Fill with junk to catch dangling refs.) 209.689 Tj -0 -151.894 Td -(2263 memset\(v, 1, len\);) 109.213 Tj -0 -161.387 Td +0 -142.4004 Td +(2262 // Fill with junk to catch dangling refs.) 209.6887 Tj +0 -151.8938 Td +(2263 memset\(v, 1, len\);) 109.2129 Tj +0 -161.3871 Td (2264 ) 21.8426 Tj -0 -170.88 Td -(2265 acquire\(&kalloc_lock\);) 126.687 Tj -0 -180.374 Td -(2266 p = \(struct run*\)v;) 113.581 Tj -0 -189.867 Td +0 -170.8805 Td +(2265 acquire\(&kalloc_lock\);) 126.6869 Tj +0 -180.3739 Td +(2266 p = \(struct run*\)v;) 113.5814 Tj +0 -189.8672 Td (2267 pend = \(struct run*\)\(v + len\);) 161.635 Tj -0 -199.361 Td +0 -199.3606 Td (2268 for\(rp=&freelist; \(r=*rp\) != 0 && r <= pend; rp=&r->n\ -ext\){) 283.953 Tj -0 -208.854 Td -(2269 rend = \(struct run*\)\(\(char*\)r + r->len\);) 214.057 Tj -0 -218.347 Td -(2270 if\(r <= p && p < rend\)) 135.424 Tj -0 -227.841 Td -(2271 panic\("freeing free page"\);) 166.004 Tj +ext\){) 283.9534 Tj +0 -208.8539 Td +(2269 rend = \(struct run*\)\(\(char*\)r + r->len\);) 214.0572 Tj +0 -218.3473 Td +(2270 if\(r <= p && p < rend\)) 135.4239 Tj +0 -227.8407 Td +(2271 panic\("freeing free page"\);) 166.0035 Tj 0 -237.334 Td -(2272 if\(pend == r\){ // p next to r: replace r with p) 249.005 Tj -0 -246.827 Td +(2272 if\(pend == r\){ // p next to r: replace r with p) 249.0053 Tj +0 -246.8274 Td (2273 p->len = len + r->len;) 144.161 Tj -0 -256.321 Td -(2274 p->next = r->next;) 126.687 Tj -0 -265.814 Td +0 -256.3207 Td +(2274 p->next = r->next;) 126.6869 Tj +0 -265.8141 Td (2275 *rp = p;) 83.0018 Tj -0 -275.307 Td +0 -275.3075 Td (2276 goto out;) 87.3703 Tj -0 -284.801 Td +0 -284.8008 Td (2277 }) 43.6851 Tj -0 -294.294 Td -(2278 if\(rend == p\){ // r next to p: replace p with r) 249.005 Tj -0 -303.788 Td -(2279 r->len += len;) 109.213 Tj -0 -313.281 Td +0 -294.2942 Td +(2278 if\(rend == p\){ // r next to p: replace p with r) 249.0053 Tj +0 -303.7875 Td +(2279 r->len += len;) 109.2129 Tj +0 -313.2809 Td (2280 if\(r->next && r->next == pend\){ // r now next to \ -r->next?) 301.427 Tj -0 -322.774 Td -(2281 r->len += r->next->len;) 157.267 Tj -0 -332.268 Td +r->next?) 301.4275 Tj +0 -322.7743 Td +(2281 r->len += r->next->len;) 157.2665 Tj +0 -332.2676 Td (2282 r->next = r->next->next;) 161.635 Tj 0 -341.761 Td (2283 }) 52.4222 Tj -0 -351.254 Td +0 -351.2543 Td (2284 goto out;) 87.3703 Tj -0 -360.748 Td +0 -360.7477 Td (2285 }) 43.6851 Tj -0 -370.241 Td +0 -370.2411 Td (2286 }) 34.9481 Tj -0 -379.734 Td -(2287 // Insert p before r in list.) 157.267 Tj -0 -389.228 Td +0 -379.7344 Td +(2287 // Insert p before r in list.) 157.2665 Tj +0 -389.2278 Td (2288 p->len = len;) 87.3703 Tj -0 -398.721 Td +0 -398.7211 Td (2289 p->next = r;) 83.0018 Tj -0 -408.214 Td +0 -408.2145 Td (2290 *rp = p;) 65.5277 Tj -0 -417.708 Td +0 -417.7079 Td (2291 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2292 out:) 43.6851 Tj -0 -436.695 Td -(2293 release\(&kalloc_lock\);) 126.687 Tj -0 -446.188 Td +0 -436.6946 Td +(2293 release\(&kalloc_lock\);) 126.6869 Tj +0 -446.1879 Td (2294 }) 26.2111 Tj -0 -455.681 Td +0 -455.6813 Td (2295 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2296 ) 21.8426 Tj 0 -474.668 Td (2297 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2298 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2299 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 22) 34.9481 Tj Q Q @@ -9890,8 +9905,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -9906,16 +9920,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/kalloc.c Page 3) 170.372 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/kalloc.c Page 3) 170.3721 Tj 0 -28.4801 Td -(2300 // Allocate n bytes of physical memory.) 192.215 Tj +(2300 // Allocate n bytes of physical memory.) 192.2146 Tj 0 -37.9735 Td -(2301 // Returns a kernel-segment pointer.) 179.109 Tj +(2301 // Returns a kernel-segment pointer.) 179.1091 Tj 0 -47.4668 Td -(2302 // Returns 0 if the memory cannot be allocated.) 227.163 Tj +(2302 // Returns 0 if the memory cannot be allocated.) 227.1628 Tj 0 -56.9602 Td (2303 char*) 43.6851 Tj 0 -66.4535 Td @@ -9925,92 +9939,92 @@ q 0 -85.4403 Td (2306 char *p;) 65.5277 Tj 0 -94.9336 Td -(2307 struct run *r, **rp;) 117.95 Tj +(2307 struct run *r, **rp;) 117.9499 Tj 0 -104.427 Td (2308 ) 21.8426 Tj -0 -113.92 Td -(2309 if\(n % PAGE || n <= 0\)) 126.687 Tj -0 -123.414 Td -(2310 panic\("kalloc"\);) 109.213 Tj -0 -132.907 Td +0 -113.9203 Td +(2309 if\(n % PAGE || n <= 0\)) 126.6869 Tj +0 -123.4137 Td +(2310 panic\("kalloc"\);) 109.2129 Tj +0 -132.9071 Td (2311 ) 21.8426 Tj -0 -142.4 Td -(2312 acquire\(&kalloc_lock\);) 126.687 Tj -0 -151.894 Td -(2313 for\(rp=&freelist; \(r=*rp\) != 0; rp=&r->next\){) 227.163 Tj -0 -161.387 Td -(2314 if\(r->len == n\){) 109.213 Tj -0 -170.88 Td -(2315 *rp = r->next;) 109.213 Tj -0 -180.374 Td +0 -142.4004 Td +(2312 acquire\(&kalloc_lock\);) 126.6869 Tj +0 -151.8938 Td +(2313 for\(rp=&freelist; \(r=*rp\) != 0; rp=&r->next\){) 227.1628 Tj +0 -161.3871 Td +(2314 if\(r->len == n\){) 109.2129 Tj +0 -170.8805 Td +(2315 *rp = r->next;) 109.2129 Tj +0 -180.3739 Td (2316 release\(&kalloc_lock\);) 144.161 Tj -0 -189.867 Td -(2317 return \(char*\)r;) 117.95 Tj -0 -199.361 Td +0 -189.8672 Td +(2317 return \(char*\)r;) 117.9499 Tj +0 -199.3606 Td (2318 }) 43.6851 Tj -0 -208.854 Td -(2319 if\(r->len > n\){) 104.844 Tj -0 -218.347 Td -(2320 r->len -= n;) 100.476 Tj -0 -227.841 Td +0 -208.8539 Td +(2319 if\(r->len > n\){) 104.8443 Tj +0 -218.3473 Td +(2320 r->len -= n;) 100.4758 Tj +0 -227.8407 Td (2321 p = \(char*\)r + r->len;) 144.161 Tj 0 -237.334 Td (2322 release\(&kalloc_lock\);) 144.161 Tj -0 -246.827 Td +0 -246.8274 Td (2323 return p;) 87.3703 Tj -0 -256.321 Td +0 -256.3207 Td (2324 }) 43.6851 Tj -0 -265.814 Td +0 -265.8141 Td (2325 }) 34.9481 Tj -0 -275.307 Td -(2326 release\(&kalloc_lock\);) 126.687 Tj -0 -284.801 Td +0 -275.3075 Td +(2326 release\(&kalloc_lock\);) 126.6869 Tj +0 -284.8008 Td (2327 ) 21.8426 Tj -0 -294.294 Td -(2328 cprintf\("kalloc: out of memory\\n"\);) 183.478 Tj -0 -303.788 Td +0 -294.2942 Td +(2328 cprintf\("kalloc: out of memory\\n"\);) 183.4776 Tj +0 -303.7875 Td (2329 return 0;) 69.8962 Tj -0 -313.281 Td +0 -313.2809 Td (2330 }) 26.2111 Tj -0 -322.774 Td +0 -322.7743 Td (2331 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (2332 ) 21.8426 Tj 0 -341.761 Td (2333 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (2334 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (2335 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (2336 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (2337 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2338 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2339 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2340 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2341 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2342 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2343 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2344 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2345 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2346 ) 21.8426 Tj 0 -474.668 Td (2347 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2348 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2349 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 23) 34.9481 Tj Q Q @@ -10025,117 +10039,117 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/traps.h Page 1) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/traps.h Page 1) 166.0035 Tj 0 -28.4801 Td -(2350 // x86 trap and interrupt constants.) 179.109 Tj +(2350 // x86 trap and interrupt constants.) 179.1091 Tj 0 -37.9735 Td (2351 ) 21.8426 Tj 0 -47.4668 Td -(2352 // Processor-defined:) 113.581 Tj +(2352 // Processor-defined:) 113.5814 Tj 0 -56.9602 Td -(2353 #define T_DIVIDE 0 // divide error) 227.163 Tj +(2353 #define T_DIVIDE 0 // divide error) 227.1628 Tj 0 -66.4535 Td -(2354 #define T_DEBUG 1 // debug exception) 240.268 Tj +(2354 #define T_DEBUG 1 // debug exception) 240.2683 Tj 0 -75.9469 Td -(2355 #define T_NMI 2 // non-maskable interrupt) 270.848 Tj +(2355 #define T_NMI 2 // non-maskable interrupt) 270.8479 Tj 0 -85.4403 Td -(2356 #define T_BRKPT 3 // breakpoint) 218.426 Tj +(2356 #define T_BRKPT 3 // breakpoint) 218.4257 Tj 0 -94.9336 Td -(2357 #define T_OFLOW 4 // overflow) 209.689 Tj +(2357 #define T_OFLOW 4 // overflow) 209.6887 Tj 0 -104.427 Td -(2358 #define T_BOUND 5 // bounds check) 227.163 Tj -0 -113.92 Td -(2359 #define T_ILLOP 6 // illegal opcode) 235.9 Tj -0 -123.414 Td -(2360 #define T_DEVICE 7 // device not available) 262.111 Tj -0 -132.907 Td -(2361 #define T_DBLFLT 8 // double fault) 227.163 Tj -0 -142.4 Td +(2358 #define T_BOUND 5 // bounds check) 227.1628 Tj +0 -113.9203 Td +(2359 #define T_ILLOP 6 // illegal opcode) 235.8998 Tj +0 -123.4137 Td +(2360 #define T_DEVICE 7 // device not available) 262.1109 Tj +0 -132.9071 Td +(2361 #define T_DBLFLT 8 // double fault) 227.1628 Tj +0 -142.4004 Td (2362 // #define T_COPROC 9 // reserved \(not used sin\ -ce 486\)) 301.427 Tj -0 -151.894 Td +ce 486\)) 301.4275 Tj +0 -151.8938 Td (2363 #define T_TSS 10 // invalid task switch seg\ -ment) 292.69 Tj -0 -161.387 Td -(2364 #define T_SEGNP 11 // segment not present) 257.742 Tj -0 -170.88 Td -(2365 #define T_STACK 12 // stack exception) 240.268 Tj -0 -180.374 Td +ment) 292.6905 Tj +0 -161.3871 Td +(2364 #define T_SEGNP 11 // segment not present) 257.7424 Tj +0 -170.8805 Td +(2365 #define T_STACK 12 // stack exception) 240.2683 Tj +0 -180.3739 Td (2366 #define T_GPFLT 13 // general protection faul\ -t) 279.585 Tj -0 -189.867 Td -(2367 #define T_PGFLT 14 // page fault) 218.426 Tj -0 -199.361 Td -(2368 // #define T_RES 15 // reserved) 209.689 Tj -0 -208.854 Td -(2369 #define T_FPERR 16 // floating point error) 262.111 Tj -0 -218.347 Td -(2370 #define T_ALIGN 17 // aligment check) 235.9 Tj -0 -227.841 Td -(2371 #define T_MCHK 18 // machine check) 231.531 Tj +t) 279.5849 Tj +0 -189.8672 Td +(2367 #define T_PGFLT 14 // page fault) 218.4257 Tj +0 -199.3606 Td +(2368 // #define T_RES 15 // reserved) 209.6887 Tj +0 -208.8539 Td +(2369 #define T_FPERR 16 // floating point error) 262.1109 Tj +0 -218.3473 Td +(2370 #define T_ALIGN 17 // aligment check) 235.8998 Tj +0 -227.8407 Td +(2371 #define T_MCHK 18 // machine check) 231.5313 Tj 0 -237.334 Td (2372 #define T_SIMDERR 19 // SIMD floating point err\ -or) 283.953 Tj -0 -246.827 Td +or) 283.9534 Tj +0 -246.8274 Td (2373 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (2374 // These are arbitrarily chosen, but with care not to over\ lap) 288.322 Tj -0 -265.814 Td -(2375 // processor defined exceptions or interrupt vectors.) 253.374 Tj -0 -275.307 Td -(2376 #define T_SYSCALL 48 // system call) 222.794 Tj -0 -284.801 Td -(2377 #define T_DEFAULT 500 // catchall) 209.689 Tj -0 -294.294 Td +0 -265.8141 Td +(2375 // processor defined exceptions or interrupt vectors.) 253.3738 Tj +0 -275.3075 Td +(2376 #define T_SYSCALL 48 // system call) 222.7942 Tj +0 -284.8008 Td +(2377 #define T_DEFAULT 500 // catchall) 209.6887 Tj +0 -294.2942 Td (2378 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (2379 #define IRQ_OFFSET 32 // IRQ 0 corresponds to in\ -t IRQ_OFFSET) 327.639 Tj -0 -313.281 Td +t IRQ_OFFSET) 327.6386 Tj +0 -313.2809 Td (2380 ) 21.8426 Tj -0 -322.774 Td -(2381 #define IRQ_TIMER 0) 135.424 Tj -0 -332.268 Td -(2382 #define IRQ_KBD 1) 135.424 Tj +0 -322.7743 Td +(2381 #define IRQ_TIMER 0) 135.4239 Tj +0 -332.2676 Td +(2382 #define IRQ_KBD 1) 135.4239 Tj 0 -341.761 Td -(2383 #define IRQ_IDE 14) 135.424 Tj -0 -351.254 Td -(2384 #define IRQ_ERROR 19) 135.424 Tj -0 -360.748 Td -(2385 #define IRQ_SPURIOUS 31) 135.424 Tj -0 -370.241 Td +(2383 #define IRQ_IDE 14) 135.4239 Tj +0 -351.2543 Td +(2384 #define IRQ_ERROR 19) 135.4239 Tj +0 -360.7477 Td +(2385 #define IRQ_SPURIOUS 31) 135.4239 Tj +0 -370.2411 Td (2386 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (2387 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2388 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2389 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2390 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2391 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2392 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2393 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2394 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2395 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2396 ) 21.8426 Tj 0 -474.668 Td (2397 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2398 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2399 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 23) 34.9481 Tj Q Q @@ -10164,8 +10178,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -10180,111 +10193,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/vectors.pl Page 1) 179.109 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/vectors.pl Page 1) 179.1091 Tj 0 -28.4801 Td -(2400 #!/usr/bin/perl -w) 100.476 Tj +(2400 #!/usr/bin/perl -w) 100.4758 Tj 0 -37.9735 Td (2401 ) 21.8426 Tj 0 -47.4668 Td -(2402 # Generate vectors.S, the trap/interrupt entry points.) 257.742 Tj +(2402 # Generate vectors.S, the trap/interrupt entry points.) 257.7424 Tj 0 -56.9602 Td -(2403 # There has to be one entry point per interrupt number) 257.742 Tj +(2403 # There has to be one entry point per interrupt number) 257.7424 Tj 0 -66.4535 Td -(2404 # since otherwise there's no way for trap\(\) to discover) 262.111 Tj +(2404 # since otherwise there's no way for trap\(\) to discover) 262.1109 Tj 0 -75.9469 Td -(2405 # the interrupt number.) 122.318 Tj +(2405 # the interrupt number.) 122.3184 Tj 0 -85.4403 Td (2406 ) 21.8426 Tj 0 -94.9336 Td -(2407 print "# generated by vectors.pl - do not edit\\n";) 240.268 Tj +(2407 print "# generated by vectors.pl - do not edit\\n";) 240.2683 Tj 0 -104.427 Td -(2408 print "# handlers\\n";) 113.581 Tj -0 -113.92 Td +(2408 print "# handlers\\n";) 113.5814 Tj +0 -113.9203 Td (2409 print ".text\\n";) 91.7388 Tj -0 -123.414 Td -(2410 print ".globl alltraps\\n";) 135.424 Tj -0 -132.907 Td -(2411 for\(my $i = 0; $i < 256; $i++\){) 157.267 Tj -0 -142.4 Td +0 -123.4137 Td +(2410 print ".globl alltraps\\n";) 135.4239 Tj +0 -132.9071 Td +(2411 for\(my $i = 0; $i < 256; $i++\){) 157.2665 Tj +0 -142.4004 Td (2412 print ".globl vector$i\\n";) 152.898 Tj -0 -151.894 Td -(2413 print "vector$i:\\n";) 126.687 Tj -0 -161.387 Td -(2414 if\(\($i < 8 || $i > 14\) && $i != 17\){) 196.583 Tj -0 -170.88 Td +0 -151.8938 Td +(2413 print "vector$i:\\n";) 126.6869 Tj +0 -161.3871 Td +(2414 if\(\($i < 8 || $i > 14\) && $i != 17\){) 196.5831 Tj +0 -170.8805 Td (2415 print " pushl \\$0\\n";) 152.898 Tj -0 -180.374 Td +0 -180.3739 Td (2416 }) 43.6851 Tj -0 -189.867 Td -(2417 print " pushl \\$$i\\n";) 139.792 Tj -0 -199.361 Td -(2418 print " jmp alltraps\\n";) 148.529 Tj -0 -208.854 Td +0 -189.8672 Td +(2417 print " pushl \\$$i\\n";) 139.7925 Tj +0 -199.3606 Td +(2418 print " jmp alltraps\\n";) 148.5295 Tj +0 -208.8539 Td (2419 }) 26.2111 Tj -0 -218.347 Td +0 -218.3473 Td (2420 ) 21.8426 Tj -0 -227.841 Td -(2421 print "\\n# vector table\\n";) 139.792 Tj +0 -227.8407 Td +(2421 print "\\n# vector table\\n";) 139.7925 Tj 0 -237.334 Td (2422 print ".data\\n";) 91.7388 Tj -0 -246.827 Td -(2423 print ".globl vectors\\n";) 131.055 Tj -0 -256.321 Td -(2424 print "vectors:\\n";) 104.844 Tj -0 -265.814 Td -(2425 for\(my $i = 0; $i < 256; $i++\){) 157.267 Tj -0 -275.307 Td -(2426 print " .long vector$i\\n";) 157.267 Tj -0 -284.801 Td +0 -246.8274 Td +(2423 print ".globl vectors\\n";) 131.0554 Tj +0 -256.3207 Td +(2424 print "vectors:\\n";) 104.8443 Tj +0 -265.8141 Td +(2425 for\(my $i = 0; $i < 256; $i++\){) 157.2665 Tj +0 -275.3075 Td +(2426 print " .long vector$i\\n";) 157.2665 Tj +0 -284.8008 Td (2427 }) 26.2111 Tj -0 -294.294 Td +0 -294.2942 Td (2428 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (2429 # sample output:) 91.7388 Tj -0 -313.281 Td +0 -313.2809 Td (2430 # # handlers) 83.0018 Tj -0 -322.774 Td +0 -322.7743 Td (2431 # .text) 61.1592 Tj -0 -332.268 Td -(2432 # .globl alltraps) 104.844 Tj +0 -332.2676 Td +(2432 # .globl alltraps) 104.8443 Tj 0 -341.761 Td -(2433 # .globl vector0) 100.476 Tj -0 -351.254 Td +(2433 # .globl vector0) 100.4758 Tj +0 -351.2543 Td (2434 # vector0:) 74.2647 Tj -0 -360.748 Td +0 -360.7477 Td (2435 # pushl $0) 83.0018 Tj -0 -370.241 Td +0 -370.2411 Td (2436 # pushl $0) 83.0018 Tj -0 -379.734 Td -(2437 # jmp alltraps) 100.476 Tj -0 -389.228 Td +0 -379.7344 Td +(2437 # jmp alltraps) 100.4758 Tj +0 -389.2278 Td (2438 # ...) 52.4222 Tj -0 -398.721 Td +0 -398.7211 Td (2439 #) 26.2111 Tj -0 -408.214 Td -(2440 # # vector table) 100.476 Tj -0 -417.708 Td +0 -408.2145 Td +(2440 # # vector table) 100.4758 Tj +0 -417.7079 Td (2441 # .data) 61.1592 Tj -0 -427.201 Td -(2442 # .globl vectors) 100.476 Tj -0 -436.695 Td +0 -427.2012 Td +(2442 # .globl vectors) 100.4758 Tj +0 -436.6946 Td (2443 # vectors:) 74.2647 Tj -0 -446.188 Td -(2444 # .long vector0) 104.844 Tj -0 -455.681 Td -(2445 # .long vector1) 104.844 Tj -0 -465.175 Td -(2446 # .long vector2) 104.844 Tj +0 -446.1879 Td +(2444 # .long vector0) 104.8443 Tj +0 -455.6813 Td +(2445 # .long vector1) 104.8443 Tj +0 -465.1747 Td +(2446 # .long vector2) 104.8443 Tj 0 -474.668 Td (2447 # ...) 52.4222 Tj -0 -484.161 Td +0 -484.1614 Td (2448 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2449 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 24) 34.9481 Tj Q Q @@ -10299,111 +10312,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/trapasm.S Page 1) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/trapasm.S Page 1) 174.7406 Tj 0 -28.4801 Td (2450 .text) 43.6851 Tj 0 -37.9735 Td (2451 ) 21.8426 Tj 0 -47.4668 Td -(2452 .set SEG_KDATA_SEL, 0x10 # selector for SEG_KDATA) 244.637 Tj +(2452 .set SEG_KDATA_SEL, 0x10 # selector for SEG_KDATA) 244.6368 Tj 0 -56.9602 Td (2453 ) 21.8426 Tj 0 -66.4535 Td -(2454 # vectors.S sends all traps here.) 174.741 Tj +(2454 # vectors.S sends all traps here.) 174.7406 Tj 0 -75.9469 Td (2455 .globl alltraps) 87.3703 Tj 0 -85.4403 Td (2456 alltraps:) 61.1592 Tj 0 -94.9336 Td -(2457 # Build trap frame.) 113.581 Tj +(2457 # Build trap frame.) 113.5814 Tj 0 -104.427 Td (2458 pushl %ds) 69.8962 Tj -0 -113.92 Td +0 -113.9203 Td (2459 pushl %es) 69.8962 Tj -0 -123.414 Td +0 -123.4137 Td (2460 pushal) 56.7907 Tj -0 -132.907 Td +0 -132.9071 Td (2461 ) 21.8426 Tj -0 -142.4 Td -(2462 # Set up data segments.) 131.055 Tj -0 -151.894 Td -(2463 movl $SEG_KDATA_SEL, %eax) 139.792 Tj -0 -161.387 Td +0 -142.4004 Td +(2462 # Set up data segments.) 131.0554 Tj +0 -151.8938 Td +(2463 movl $SEG_KDATA_SEL, %eax) 139.7925 Tj +0 -161.3871 Td (2464 movw %ax,%ds) 83.0018 Tj -0 -170.88 Td +0 -170.8805 Td (2465 movw %ax,%es) 83.0018 Tj -0 -180.374 Td +0 -180.3739 Td (2466 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (2467 # Call trap\(tf\), where tf=%esp) 161.635 Tj -0 -199.361 Td +0 -199.3606 Td (2468 pushl %esp) 74.2647 Tj -0 -208.854 Td +0 -208.8539 Td (2469 call trap) 69.8962 Tj -0 -218.347 Td +0 -218.3473 Td (2470 addl $4, %esp) 87.3703 Tj -0 -227.841 Td +0 -227.8407 Td (2471 ) 21.8426 Tj 0 -237.334 Td -(2472 # Return falls through to trapret...) 187.846 Tj -0 -246.827 Td +(2472 # Return falls through to trapret...) 187.8461 Tj +0 -246.8274 Td (2473 .globl trapret) 83.0018 Tj -0 -256.321 Td +0 -256.3207 Td (2474 trapret:) 56.7907 Tj -0 -265.814 Td +0 -265.8141 Td (2475 popal) 52.4222 Tj -0 -275.307 Td +0 -275.3075 Td (2476 popl %es) 65.5277 Tj -0 -284.801 Td +0 -284.8008 Td (2477 popl %ds) 65.5277 Tj -0 -294.294 Td -(2478 addl $0x8, %esp # trapno and errcode) 192.215 Tj -0 -303.788 Td +0 -294.2942 Td +(2478 addl $0x8, %esp # trapno and errcode) 192.2146 Tj +0 -303.7875 Td (2479 iret) 48.0537 Tj -0 -313.281 Td +0 -313.2809 Td (2480 ) 21.8426 Tj -0 -322.774 Td -(2481 # A forked process switches to user mode by calling) 253.374 Tj -0 -332.268 Td -(2482 # forkret1\(tf\), where tf is the trap frame to use.) 249.005 Tj +0 -322.7743 Td +(2481 # A forked process switches to user mode by calling) 253.3738 Tj +0 -332.2676 Td +(2482 # forkret1\(tf\), where tf is the trap frame to use.) 249.0053 Tj 0 -341.761 Td (2483 .globl forkret1) 87.3703 Tj -0 -351.254 Td +0 -351.2543 Td (2484 forkret1:) 61.1592 Tj -0 -360.748 Td -(2485 movl 4\(%esp\), %esp) 109.213 Tj -0 -370.241 Td +0 -360.7477 Td +(2485 movl 4\(%esp\), %esp) 109.2129 Tj +0 -370.2411 Td (2486 jmp trapret) 78.6333 Tj -0 -379.734 Td +0 -379.7344 Td (2487 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2488 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2489 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2490 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2491 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2492 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2493 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2494 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2495 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2496 ) 21.8426 Tj 0 -474.668 Td (2497 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2498 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2499 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 24) 34.9481 Tj Q Q @@ -10432,8 +10445,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -10448,16 +10460,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/trap.c Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/trap.c Page 1) 161.635 Tj 0 -28.4801 Td -(2500 #include "types.h") 100.476 Tj +(2500 #include "types.h") 100.4758 Tj 0 -37.9735 Td (2501 #include "defs.h") 96.1073 Tj 0 -47.4668 Td -(2502 #include "param.h") 100.476 Tj +(2502 #include "param.h") 100.4758 Tj 0 -56.9602 Td (2503 #include "mmu.h") 91.7388 Tj 0 -66.4535 Td @@ -10465,97 +10477,96 @@ q 0 -75.9469 Td (2505 #include "x86.h") 91.7388 Tj 0 -85.4403 Td -(2506 #include "traps.h") 100.476 Tj +(2506 #include "traps.h") 100.4758 Tj 0 -94.9336 Td -(2507 #include "spinlock.h") 113.581 Tj +(2507 #include "spinlock.h") 113.5814 Tj 0 -104.427 Td (2508 ) 21.8426 Tj -0 -113.92 Td -(2509 // Interrupt descriptor table \(shared by all CPUs\).) 244.637 Tj -0 -123.414 Td -(2510 struct gatedesc idt[256];) 131.055 Tj -0 -132.907 Td +0 -113.9203 Td +(2509 // Interrupt descriptor table \(shared by all CPUs\).) 244.6368 Tj +0 -123.4137 Td +(2510 struct gatedesc idt[256];) 131.0554 Tj +0 -132.9071 Td (2511 extern uint vectors[]; // in vectors.S: array of 256 entr\ -y pointers) 318.902 Tj -0 -142.4 Td -(2512 struct spinlock tickslock;) 135.424 Tj -0 -151.894 Td +y pointers) 318.9016 Tj +0 -142.4004 Td +(2512 struct spinlock tickslock;) 135.4239 Tj +0 -151.8938 Td (2513 int ticks;) 65.5277 Tj -0 -161.387 Td +0 -161.3871 Td (2514 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (2515 void) 39.3166 Tj -0 -180.374 Td +0 -180.3739 Td (2516 tvinit\(void\)) 74.2647 Tj -0 -189.867 Td +0 -189.8672 Td (2517 {) 26.2111 Tj -0 -199.361 Td +0 -199.3606 Td (2518 int i;) 56.7907 Tj -0 -208.854 Td +0 -208.8539 Td (2519 ) 21.8426 Tj -0 -218.347 Td -(2520 for\(i = 0; i < 256; i++\)) 135.424 Tj -0 -227.841 Td -(2521 SETGATE\(idt[i], 0, SEG_KCODE<<3, vectors[i], 0\);) 249.005 Tj +0 -218.3473 Td +(2520 for\(i = 0; i < 256; i++\)) 135.4239 Tj +0 -227.8407 Td +(2521 SETGATE\(idt[i], 0, SEG_KCODE<<3, vectors[i], 0\);) 249.0053 Tj 0 -237.334 Td -(2522 SETGATE\(idt[T_SYSCALL], 0, SEG_KCODE<<3, vectors[T_SYSC\ -ALL], DPL_USER\);) 340.744 Tj -0 -246.827 Td +(2522 SETGATE\(idt[T_SYSCALL], 1, SEG_KCODE<<3, vectors[T_SYSC\ +ALL], DPL_USER\);) 340.7441 Tj +0 -246.8274 Td (2523 ) 21.8426 Tj -0 -256.321 Td -(2524 initlock\(&tickslock, "time"\);) 157.267 Tj -0 -265.814 Td +0 -256.3207 Td +(2524 initlock\(&tickslock, "time"\);) 157.2665 Tj +0 -265.8141 Td (2525 }) 26.2111 Tj -0 -275.307 Td +0 -275.3075 Td (2526 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (2527 void) 39.3166 Tj -0 -294.294 Td +0 -294.2942 Td (2528 idtinit\(void\)) 78.6333 Tj -0 -303.788 Td +0 -303.7875 Td (2529 {) 26.2111 Tj -0 -313.281 Td -(2530 lidt\(idt, sizeof\(idt\)\);) 131.055 Tj -0 -322.774 Td +0 -313.2809 Td +(2530 lidt\(idt, sizeof\(idt\)\);) 131.0554 Tj +0 -322.7743 Td (2531 }) 26.2111 Tj -0 -332.268 Td +0 -332.2676 Td (2532 ) 21.8426 Tj 0 -341.761 Td (2533 void) 39.3166 Tj -0 -351.254 Td -(2534 trap\(struct trapframe *tf\)) 135.424 Tj -0 -360.748 Td +0 -351.2543 Td +(2534 trap\(struct trapframe *tf\)) 135.4239 Tj +0 -360.7477 Td (2535 {) 26.2111 Tj -0 -370.241 Td +0 -370.2411 Td (2536 if\(tf->trapno == T_SYSCALL\){) 152.898 Tj -0 -379.734 Td -(2537 if\(cp->killed\)) 100.476 Tj -0 -389.228 Td +0 -379.7344 Td +(2537 if\(cp->killed\)) 100.4758 Tj +0 -389.2278 Td (2538 exit\(\);) 78.6333 Tj -0 -398.721 Td +0 -398.7211 Td (2539 cp->tf = tf;) 91.7388 Tj -0 -408.214 Td +0 -408.2145 Td (2540 syscall\(\);) 83.0018 Tj -0 -417.708 Td -(2541 if\(cp->killed\)) 100.476 Tj -0 -427.201 Td +0 -417.7079 Td +(2541 if\(cp->killed\)) 100.4758 Tj +0 -427.2012 Td (2542 exit\(\);) 78.6333 Tj -0 -436.695 Td +0 -436.6946 Td (2543 return;) 69.8962 Tj -0 -446.188 Td +0 -446.1879 Td (2544 }) 34.9481 Tj -0 -455.681 Td +0 -455.6813 Td (2545 ) 21.8426 Tj -0 -465.175 Td -(2546 // Increment nlock to make sure interrupts stay off) 253.374 Tj +0 -465.1747 Td +(2546 switch\(tf->trapno\){) 113.5814 Tj 0 -474.668 Td -(2547 // during interrupt handler. Decrement before returning\ -.) 279.585 Tj -0 -484.161 Td -(2548 cpus[cpu\(\)].nlock++;) 117.95 Tj -0 -493.655 Td -(2549 ) 21.8426 Tj -0 -522.135 Td +(2547 case IRQ_OFFSET + IRQ_TIMER:) 152.898 Tj +0 -484.1614 Td +(2548 if\(cpu\(\) == 0\){) 104.8443 Tj +0 -493.6547 Td +(2549 acquire\(&tickslock\);) 135.4239 Tj +0 -522.1348 Td (Sheet 25) 34.9481 Tj Q Q @@ -10570,119 +10581,117 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/trap.c Page 2) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/trap.c Page 2) 161.635 Tj 0 -28.4801 Td -(2550 switch\(tf->trapno\){) 113.581 Tj +(2550 ticks++;) 83.0018 Tj 0 -37.9735 Td -(2551 case IRQ_OFFSET + IRQ_TIMER:) 152.898 Tj +(2551 wakeup\(&ticks\);) 113.5814 Tj 0 -47.4668 Td -(2552 if\(cpu\(\) == 0\){) 104.844 Tj +(2552 release\(&tickslock\);) 135.4239 Tj 0 -56.9602 Td -(2553 acquire\(&tickslock\);) 135.424 Tj +(2553 }) 43.6851 Tj 0 -66.4535 Td -(2554 ticks++;) 83.0018 Tj +(2554 lapic_eoi\(\);) 91.7388 Tj 0 -75.9469 Td -(2555 wakeup\(&ticks\);) 113.581 Tj +(2555 break;) 65.5277 Tj 0 -85.4403 Td -(2556 release\(&tickslock\);) 135.424 Tj +(2556 case IRQ_OFFSET + IRQ_IDE:) 144.161 Tj 0 -94.9336 Td -(2557 }) 43.6851 Tj +(2557 ide_intr\(\);) 87.3703 Tj 0 -104.427 Td (2558 lapic_eoi\(\);) 91.7388 Tj -0 -113.92 Td +0 -113.9203 Td (2559 break;) 65.5277 Tj -0 -123.414 Td -(2560 case IRQ_OFFSET + IRQ_IDE:) 144.161 Tj -0 -132.907 Td -(2561 ide_intr\(\);) 87.3703 Tj -0 -142.4 Td +0 -123.4137 Td +(2560 case IRQ_OFFSET + IRQ_KBD:) 144.161 Tj +0 -132.9071 Td +(2561 kbd_intr\(\);) 87.3703 Tj +0 -142.4004 Td (2562 lapic_eoi\(\);) 91.7388 Tj -0 -151.894 Td +0 -151.8938 Td (2563 break;) 65.5277 Tj -0 -161.387 Td -(2564 case IRQ_OFFSET + IRQ_KBD:) 144.161 Tj -0 -170.88 Td -(2565 kbd_intr\(\);) 87.3703 Tj -0 -180.374 Td -(2566 lapic_eoi\(\);) 91.7388 Tj -0 -189.867 Td -(2567 break;) 65.5277 Tj -0 -199.361 Td -(2568 case IRQ_OFFSET + IRQ_SPURIOUS:) 166.004 Tj -0 -208.854 Td -(2569 cprintf\("spurious interrupt from cpu %d eip %x\\n", c\ -pu\(\), tf->eip\);) 332.007 Tj -0 -218.347 Td -(2570 lapic_eoi\(\);) 91.7388 Tj -0 -227.841 Td -(2571 break;) 65.5277 Tj +0 -161.3871 Td +(2564 case IRQ_OFFSET + IRQ_SPURIOUS:) 166.0035 Tj +0 -170.8805 Td +(2565 cprintf\("cpu%d: spurious interrupt at %x:%x\\n",) 244.6368 Tj +0 -180.3739 Td +(2566 cpu\(\), tf->cs, tf->eip\);) 179.1091 Tj +0 -189.8672 Td +(2567 lapic_eoi\(\);) 91.7388 Tj +0 -199.3606 Td +(2568 break;) 65.5277 Tj +0 -208.8539 Td +(2569 ) 21.8426 Tj +0 -218.3473 Td +(2570 default:) 65.5277 Tj +0 -227.8407 Td +(2571 if\(cp == 0 || \(tf->cs&3\) == 0\){) 174.7406 Tj 0 -237.334 Td -(2572 ) 21.8426 Tj -0 -246.827 Td -(2573 default:) 65.5277 Tj -0 -256.321 Td -(2574 if\(cp == 0\){) 91.7388 Tj -0 -265.814 Td -(2575 // Otherwise it's our mistake.) 179.109 Tj -0 -275.307 Td -(2576 cprintf\("unexpected trap %d from cpu %d eip %x\\n",) 266.479 Tj -0 -284.801 Td -(2577 tf->trapno, cpu\(\), tf->eip\);) 205.32 Tj -0 -294.294 Td -(2578 panic\("trap"\);) 109.213 Tj -0 -303.788 Td -(2579 }) 43.6851 Tj -0 -313.281 Td -(2580 // Assume process divided by zero or dereferenced null\ -, etc.) 301.427 Tj -0 -322.774 Td -(2581 cprintf\("pid %d %s: trap %d err %d on cpu %d eip %x -\ -- kill proc\\n",) 336.376 Tj -0 -332.268 Td -(2582 cp->pid, cp->name, tf->trapno, tf->err, cpu\(\)\ -, tf->eip\);) 318.902 Tj +(2572 // In kernel, it must be our mistake.) 209.6887 Tj +0 -246.8274 Td +(2573 cprintf\("unexpected trap %d from cpu %d eip %x\\n",) 266.4794 Tj +0 -256.3207 Td +(2574 tf->trapno, cpu\(\), tf->eip\);) 205.3202 Tj +0 -265.8141 Td +(2575 panic\("trap"\);) 109.2129 Tj +0 -275.3075 Td +(2576 }) 43.6851 Tj +0 -284.8008 Td +(2577 // In user space, assume process misbehaved.) 231.5313 Tj +0 -294.2942 Td +(2578 cprintf\("pid %d %s: trap %d err %d on cpu %d eip %x -\ +- kill proc\\n",) 336.3756 Tj +0 -303.7875 Td +(2579 cp->pid, cp->name, tf->trapno, tf->err, cpu\(\)\ +, tf->eip\);) 318.9016 Tj +0 -313.2809 Td +(2580 cp->killed = 1;) 104.8443 Tj +0 -322.7743 Td +(2581 }) 34.9481 Tj +0 -332.2676 Td +(2582 ) 21.8426 Tj 0 -341.761 Td -(2583 cp->killed = 1;) 104.844 Tj -0 -351.254 Td -(2584 }) 34.9481 Tj -0 -360.748 Td -(2585 cpus[cpu\(\)].nlock--;) 117.95 Tj -0 -370.241 Td -(2586 ) 21.8426 Tj -0 -379.734 Td -(2587 // Force process exit if it has been killed and is in us\ +(2583 // Force process exit if it has been killed and is in us\ er space.) 314.533 Tj -0 -389.228 Td -(2588 // \(If it is still executing in the kernel, let it keep\ +0 -351.2543 Td +(2584 // \(If it is still executing in the kernel, let it keep\ running) 305.796 Tj -0 -398.721 Td -(2589 // until it gets to the regular system call return.\)) 257.742 Tj -0 -408.214 Td -(2590 if\(cp && cp->killed && \(tf->cs&3\) == DPL_USER\)) 231.531 Tj -0 -417.708 Td -(2591 exit\(\);) 69.8962 Tj -0 -427.201 Td -(2592 ) 21.8426 Tj -0 -436.695 Td -(2593 // Force process to give up CPU on clock tick.) 231.531 Tj -0 -446.188 Td -(2594 // If interrupts were on while locks held, would need to\ - check nlock.) 332.007 Tj -0 -455.681 Td -(2595 if\(cp && cp->state == RUNNING && tf->trapno == IRQ_OFFS\ -ET+IRQ_TIMER\)) 327.639 Tj -0 -465.175 Td -(2596 yield\(\);) 74.2647 Tj +0 -360.7477 Td +(2585 // until it gets to the regular system call return.\)) 257.7424 Tj +0 -370.2411 Td +(2586 if\(cp && cp->killed && \(tf->cs&3\) == DPL_USER\)) 231.5313 Tj +0 -379.7344 Td +(2587 exit\(\);) 69.8962 Tj +0 -389.2278 Td +(2588 ) 21.8426 Tj +0 -398.7211 Td +(2589 // Force process to give up CPU on clock tick.) 231.5313 Tj +0 -408.2145 Td +(2590 // If interrupts were on while locks held, would need to\ + check nlock.) 332.0071 Tj +0 -417.7079 Td +(2591 if\(cp && cp->state == RUNNING && tf->trapno == IRQ_OFFS\ +ET+IRQ_TIMER\)) 327.6386 Tj +0 -427.2012 Td +(2592 yield\(\);) 74.2647 Tj +0 -436.6946 Td +(2593 }) 26.2111 Tj +0 -446.1879 Td +(2594 ) 21.8426 Tj +0 -455.6813 Td +(2595 ) 21.8426 Tj +0 -465.1747 Td +(2596 ) 21.8426 Tj 0 -474.668 Td -(2597 }) 26.2111 Tj -0 -484.161 Td +(2597 ) 21.8426 Tj +0 -484.1614 Td (2598 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2599 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 25) 34.9481 Tj Q Q @@ -10711,8 +10720,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -10727,111 +10735,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/syscall.h Page 1) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/syscall.h Page 1) 174.7406 Tj 0 -28.4801 Td -(2600 // System call numbers) 117.95 Tj +(2600 // System call numbers) 117.9499 Tj 0 -37.9735 Td -(2601 #define SYS_fork 1) 113.581 Tj +(2601 #define SYS_fork 1) 113.5814 Tj 0 -47.4668 Td -(2602 #define SYS_exit 2) 113.581 Tj +(2602 #define SYS_exit 2) 113.5814 Tj 0 -56.9602 Td -(2603 #define SYS_wait 3) 113.581 Tj +(2603 #define SYS_wait 3) 113.5814 Tj 0 -66.4535 Td -(2604 #define SYS_pipe 4) 113.581 Tj +(2604 #define SYS_pipe 4) 113.5814 Tj 0 -75.9469 Td -(2605 #define SYS_write 5) 113.581 Tj +(2605 #define SYS_write 5) 113.5814 Tj 0 -85.4403 Td -(2606 #define SYS_read 6) 113.581 Tj +(2606 #define SYS_read 6) 113.5814 Tj 0 -94.9336 Td -(2607 #define SYS_close 7) 113.581 Tj +(2607 #define SYS_close 7) 113.5814 Tj 0 -104.427 Td -(2608 #define SYS_kill 8) 113.581 Tj -0 -113.92 Td -(2609 #define SYS_exec 9) 113.581 Tj -0 -123.414 Td -(2610 #define SYS_open 10) 113.581 Tj -0 -132.907 Td -(2611 #define SYS_mknod 11) 113.581 Tj -0 -142.4 Td -(2612 #define SYS_unlink 12) 113.581 Tj -0 -151.894 Td -(2613 #define SYS_fstat 13) 113.581 Tj -0 -161.387 Td -(2614 #define SYS_link 14) 113.581 Tj -0 -170.88 Td -(2615 #define SYS_mkdir 15) 113.581 Tj -0 -180.374 Td -(2616 #define SYS_chdir 16) 113.581 Tj -0 -189.867 Td -(2617 #define SYS_dup 17) 113.581 Tj -0 -199.361 Td -(2618 #define SYS_getpid 18) 113.581 Tj -0 -208.854 Td -(2619 #define SYS_sbrk 19) 113.581 Tj -0 -218.347 Td -(2620 #define SYS_sleep 20) 113.581 Tj -0 -227.841 Td +(2608 #define SYS_kill 8) 113.5814 Tj +0 -113.9203 Td +(2609 #define SYS_exec 9) 113.5814 Tj +0 -123.4137 Td +(2610 #define SYS_open 10) 113.5814 Tj +0 -132.9071 Td +(2611 #define SYS_mknod 11) 113.5814 Tj +0 -142.4004 Td +(2612 #define SYS_unlink 12) 113.5814 Tj +0 -151.8938 Td +(2613 #define SYS_fstat 13) 113.5814 Tj +0 -161.3871 Td +(2614 #define SYS_link 14) 113.5814 Tj +0 -170.8805 Td +(2615 #define SYS_mkdir 15) 113.5814 Tj +0 -180.3739 Td +(2616 #define SYS_chdir 16) 113.5814 Tj +0 -189.8672 Td +(2617 #define SYS_dup 17) 113.5814 Tj +0 -199.3606 Td +(2618 #define SYS_getpid 18) 113.5814 Tj +0 -208.8539 Td +(2619 #define SYS_sbrk 19) 113.5814 Tj +0 -218.3473 Td +(2620 #define SYS_sleep 20) 113.5814 Tj +0 -227.8407 Td (2621 ) 21.8426 Tj 0 -237.334 Td (2622 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (2623 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (2624 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (2625 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (2626 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (2627 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (2628 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (2629 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (2630 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (2631 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (2632 ) 21.8426 Tj 0 -341.761 Td (2633 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (2634 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (2635 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (2636 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (2637 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2638 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2639 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2640 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2641 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2642 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2643 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2644 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2645 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2646 ) 21.8426 Tj 0 -474.668 Td (2647 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2648 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2649 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 26) 34.9481 Tj Q Q @@ -10846,16 +10854,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/syscall.c Page 1) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/syscall.c Page 1) 174.7406 Tj 0 -28.4801 Td -(2650 #include "types.h") 100.476 Tj +(2650 #include "types.h") 100.4758 Tj 0 -37.9735 Td (2651 #include "defs.h") 96.1073 Tj 0 -47.4668 Td -(2652 #include "param.h") 100.476 Tj +(2652 #include "param.h") 100.4758 Tj 0 -56.9602 Td (2653 #include "mmu.h") 91.7388 Tj 0 -66.4535 Td @@ -10863,97 +10871,97 @@ q 0 -75.9469 Td (2655 #include "x86.h") 91.7388 Tj 0 -85.4403 Td -(2656 #include "syscall.h") 109.213 Tj +(2656 #include "syscall.h") 109.2129 Tj 0 -94.9336 Td (2657 ) 21.8426 Tj 0 -104.427 Td -(2658 // User code makes a system call with INT T_SYSCALL.) 249.005 Tj -0 -113.92 Td +(2658 // User code makes a system call with INT T_SYSCALL.) 249.0053 Tj +0 -113.9203 Td (2659 // System call number in %eax.) 152.898 Tj -0 -123.414 Td -(2660 // Arguments on the stack, from the user call to the C) 257.742 Tj -0 -132.907 Td +0 -123.4137 Td +(2660 // Arguments on the stack, from the user call to the C) 257.7424 Tj +0 -132.9071 Td (2661 // library system call function. The saved user %esp point\ -s) 279.585 Tj -0 -142.4 Td +s) 279.5849 Tj +0 -142.4004 Td (2662 // to a saved program counter, and then the first argument\ -.) 279.585 Tj -0 -151.894 Td +.) 279.5849 Tj +0 -151.8938 Td (2663 ) 21.8426 Tj -0 -161.387 Td -(2664 // Fetch the int at addr from process p.) 196.583 Tj -0 -170.88 Td +0 -161.3871 Td +(2664 // Fetch the int at addr from process p.) 196.5831 Tj +0 -170.8805 Td (2665 int) 34.9481 Tj -0 -180.374 Td -(2666 fetchint\(struct proc *p, uint addr, int *ip\)) 214.057 Tj -0 -189.867 Td +0 -180.3739 Td +(2666 fetchint\(struct proc *p, uint addr, int *ip\)) 214.0572 Tj +0 -189.8672 Td (2667 {) 26.2111 Tj -0 -199.361 Td -(2668 if\(addr >= p->sz || addr+4 > p->sz\)) 183.478 Tj -0 -208.854 Td +0 -199.3606 Td +(2668 if\(addr >= p->sz || addr+4 > p->sz\)) 183.4776 Tj +0 -208.8539 Td (2669 return -1;) 83.0018 Tj -0 -218.347 Td -(2670 *ip = *\(int*\)\(p->mem + addr\);) 157.267 Tj -0 -227.841 Td +0 -218.3473 Td +(2670 *ip = *\(int*\)\(p->mem + addr\);) 157.2665 Tj +0 -227.8407 Td (2671 return 0;) 69.8962 Tj 0 -237.334 Td (2672 }) 26.2111 Tj -0 -246.827 Td +0 -246.8274 Td (2673 ) 21.8426 Tj -0 -256.321 Td -(2674 // Fetch the nul-terminated string at addr from process p.) 275.216 Tj -0 -265.814 Td +0 -256.3207 Td +(2674 // Fetch the nul-terminated string at addr from process p.) 275.2164 Tj +0 -265.8141 Td (2675 // Doesn't actually copy the string - just sets *pp to poi\ nt at it.) 314.533 Tj -0 -275.307 Td -(2676 // Returns length of string, not including nul.) 227.163 Tj -0 -284.801 Td +0 -275.3075 Td +(2676 // Returns length of string, not including nul.) 227.1628 Tj +0 -284.8008 Td (2677 int) 34.9481 Tj -0 -294.294 Td -(2678 fetchstr\(struct proc *p, uint addr, char **pp\)) 222.794 Tj -0 -303.788 Td +0 -294.2942 Td +(2678 fetchstr\(struct proc *p, uint addr, char **pp\)) 222.7942 Tj +0 -303.7875 Td (2679 {) 26.2111 Tj -0 -313.281 Td +0 -313.2809 Td (2680 char *s, *ep;) 87.3703 Tj -0 -322.774 Td +0 -322.7743 Td (2681 ) 21.8426 Tj -0 -332.268 Td -(2682 if\(addr >= p->sz\)) 104.844 Tj +0 -332.2676 Td +(2682 if\(addr >= p->sz\)) 104.8443 Tj 0 -341.761 Td (2683 return -1;) 83.0018 Tj -0 -351.254 Td -(2684 *pp = p->mem + addr;) 117.95 Tj -0 -360.748 Td -(2685 ep = p->mem + p->sz;) 117.95 Tj -0 -370.241 Td -(2686 for\(s = *pp; s < ep; s++\)) 139.792 Tj -0 -379.734 Td +0 -351.2543 Td +(2684 *pp = p->mem + addr;) 117.9499 Tj +0 -360.7477 Td +(2685 ep = p->mem + p->sz;) 117.9499 Tj +0 -370.2411 Td +(2686 for\(s = *pp; s < ep; s++\)) 139.7925 Tj +0 -379.7344 Td (2687 if\(*s == 0\)) 87.3703 Tj -0 -389.228 Td -(2688 return s - *pp;) 113.581 Tj -0 -398.721 Td +0 -389.2278 Td +(2688 return s - *pp;) 113.5814 Tj +0 -398.7211 Td (2689 return -1;) 74.2647 Tj -0 -408.214 Td +0 -408.2145 Td (2690 }) 26.2111 Tj -0 -417.708 Td +0 -417.7079 Td (2691 ) 21.8426 Tj -0 -427.201 Td -(2692 // Fetch the nth 32-bit system call argument.) 218.426 Tj -0 -436.695 Td +0 -427.2012 Td +(2692 // Fetch the nth 32-bit system call argument.) 218.4257 Tj +0 -436.6946 Td (2693 int) 34.9481 Tj -0 -446.188 Td -(2694 argint\(int n, int *ip\)) 117.95 Tj -0 -455.681 Td +0 -446.1879 Td +(2694 argint\(int n, int *ip\)) 117.9499 Tj +0 -455.6813 Td (2695 {) 26.2111 Tj -0 -465.175 Td -(2696 return fetchint\(cp, cp->tf->esp + 4 + 4*n, ip\);) 235.9 Tj +0 -465.1747 Td +(2696 return fetchint\(cp, cp->tf->esp + 4 + 4*n, ip\);) 235.8998 Tj 0 -474.668 Td (2697 }) 26.2111 Tj -0 -484.161 Td +0 -484.1614 Td (2698 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2699 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 26) 34.9481 Tj Q Q @@ -10982,8 +10990,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -10998,22 +11005,22 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/syscall.c Page 2) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/syscall.c Page 2) 174.7406 Tj 0 -28.4801 Td (2700 // Fetch the nth word-sized system call argument as a poin\ ter) 288.322 Tj 0 -37.9735 Td (2701 // to a block of memory of size n bytes. Check that the p\ -ointer) 301.427 Tj +ointer) 301.4275 Tj 0 -47.4668 Td -(2702 // lies within the process address space.) 200.952 Tj +(2702 // lies within the process address space.) 200.9517 Tj 0 -56.9602 Td (2703 int) 34.9481 Tj 0 -66.4535 Td -(2704 argptr\(int n, char **pp, int size\)) 170.372 Tj +(2704 argptr\(int n, char **pp, int size\)) 170.3721 Tj 0 -75.9469 Td (2705 {) 26.2111 Tj 0 -85.4403 Td @@ -11021,93 +11028,93 @@ ointer) 301.427 Tj 0 -94.9336 Td (2707 ) 21.8426 Tj 0 -104.427 Td -(2708 if\(argint\(n, &i\) < 0\)) 122.318 Tj -0 -113.92 Td +(2708 if\(argint\(n, &i\) < 0\)) 122.3184 Tj +0 -113.9203 Td (2709 return -1;) 83.0018 Tj -0 -123.414 Td -(2710 if\(\(uint\)i >= cp->sz || \(uint\)i+size >= cp->sz\)) 235.9 Tj -0 -132.907 Td +0 -123.4137 Td +(2710 if\(\(uint\)i >= cp->sz || \(uint\)i+size >= cp->sz\)) 235.8998 Tj +0 -132.9071 Td (2711 return -1;) 83.0018 Tj -0 -142.4 Td -(2712 *pp = cp->mem + i;) 109.213 Tj -0 -151.894 Td +0 -142.4004 Td +(2712 *pp = cp->mem + i;) 109.2129 Tj +0 -151.8938 Td (2713 return 0;) 69.8962 Tj -0 -161.387 Td +0 -161.3871 Td (2714 }) 26.2111 Tj -0 -170.88 Td +0 -170.8805 Td (2715 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (2716 // Fetch the nth word-sized system call argument as a stri\ -ng pointer.) 323.27 Tj -0 -189.867 Td +ng pointer.) 323.2701 Tj +0 -189.8672 Td (2717 // Check that the pointer is valid and the string is nul-t\ -erminated.) 318.902 Tj -0 -199.361 Td +erminated.) 318.9016 Tj +0 -199.3606 Td (2718 // \(There is no shared writable memory, so the string can\ -'t change) 310.165 Tj -0 -208.854 Td -(2719 // between this check and being used by the kernel.\)) 249.005 Tj -0 -218.347 Td +'t change) 310.1645 Tj +0 -208.8539 Td +(2719 // between this check and being used by the kernel.\)) 249.0053 Tj +0 -218.3473 Td (2720 int) 34.9481 Tj -0 -227.841 Td -(2721 argstr\(int n, char **pp\)) 126.687 Tj +0 -227.8407 Td +(2721 argstr\(int n, char **pp\)) 126.6869 Tj 0 -237.334 Td (2722 {) 26.2111 Tj -0 -246.827 Td +0 -246.8274 Td (2723 int addr;) 69.8962 Tj -0 -256.321 Td -(2724 if\(argint\(n, &addr\) < 0\)) 135.424 Tj -0 -265.814 Td +0 -256.3207 Td +(2724 if\(argint\(n, &addr\) < 0\)) 135.4239 Tj +0 -265.8141 Td (2725 return -1;) 83.0018 Tj -0 -275.307 Td +0 -275.3075 Td (2726 return fetchstr\(cp, addr, pp\);) 161.635 Tj -0 -284.801 Td +0 -284.8008 Td (2727 }) 26.2111 Tj -0 -294.294 Td +0 -294.2942 Td (2728 ) 21.8426 Tj -0 -303.788 Td -(2729 extern int sys_chdir\(void\);) 139.792 Tj -0 -313.281 Td -(2730 extern int sys_close\(void\);) 139.792 Tj -0 -322.774 Td -(2731 extern int sys_dup\(void\);) 131.055 Tj -0 -332.268 Td -(2732 extern int sys_exec\(void\);) 135.424 Tj +0 -303.7875 Td +(2729 extern int sys_chdir\(void\);) 139.7925 Tj +0 -313.2809 Td +(2730 extern int sys_close\(void\);) 139.7925 Tj +0 -322.7743 Td +(2731 extern int sys_dup\(void\);) 131.0554 Tj +0 -332.2676 Td +(2732 extern int sys_exec\(void\);) 135.4239 Tj 0 -341.761 Td -(2733 extern int sys_exit\(void\);) 135.424 Tj -0 -351.254 Td -(2734 extern int sys_fork\(void\);) 135.424 Tj -0 -360.748 Td -(2735 extern int sys_fstat\(void\);) 139.792 Tj -0 -370.241 Td +(2733 extern int sys_exit\(void\);) 135.4239 Tj +0 -351.2543 Td +(2734 extern int sys_fork\(void\);) 135.4239 Tj +0 -360.7477 Td +(2735 extern int sys_fstat\(void\);) 139.7925 Tj +0 -370.2411 Td (2736 extern int sys_getpid\(void\);) 144.161 Tj -0 -379.734 Td -(2737 extern int sys_kill\(void\);) 135.424 Tj -0 -389.228 Td -(2738 extern int sys_link\(void\);) 135.424 Tj -0 -398.721 Td -(2739 extern int sys_mkdir\(void\);) 139.792 Tj -0 -408.214 Td -(2740 extern int sys_mknod\(void\);) 139.792 Tj -0 -417.708 Td -(2741 extern int sys_open\(void\);) 135.424 Tj -0 -427.201 Td -(2742 extern int sys_pipe\(void\);) 135.424 Tj -0 -436.695 Td -(2743 extern int sys_read\(void\);) 135.424 Tj -0 -446.188 Td -(2744 extern int sys_sbrk\(void\);) 135.424 Tj -0 -455.681 Td -(2745 extern int sys_sleep\(void\);) 139.792 Tj -0 -465.175 Td +0 -379.7344 Td +(2737 extern int sys_kill\(void\);) 135.4239 Tj +0 -389.2278 Td +(2738 extern int sys_link\(void\);) 135.4239 Tj +0 -398.7211 Td +(2739 extern int sys_mkdir\(void\);) 139.7925 Tj +0 -408.2145 Td +(2740 extern int sys_mknod\(void\);) 139.7925 Tj +0 -417.7079 Td +(2741 extern int sys_open\(void\);) 135.4239 Tj +0 -427.2012 Td +(2742 extern int sys_pipe\(void\);) 135.4239 Tj +0 -436.6946 Td +(2743 extern int sys_read\(void\);) 135.4239 Tj +0 -446.1879 Td +(2744 extern int sys_sbrk\(void\);) 135.4239 Tj +0 -455.6813 Td +(2745 extern int sys_sleep\(void\);) 139.7925 Tj +0 -465.1747 Td (2746 extern int sys_unlink\(void\);) 144.161 Tj 0 -474.668 Td -(2747 extern int sys_wait\(void\);) 135.424 Tj -0 -484.161 Td -(2748 extern int sys_write\(void\);) 139.792 Tj -0 -493.655 Td +(2747 extern int sys_wait\(void\);) 135.4239 Tj +0 -484.1614 Td +(2748 extern int sys_write\(void\);) 139.7925 Tj +0 -493.6547 Td (2749 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 27) 34.9481 Tj Q Q @@ -11122,112 +11129,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/syscall.c Page 3) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/syscall.c Page 3) 174.7406 Tj 0 -28.4801 Td -(2750 static int \(*syscalls[]\)\(void\) = {) 170.372 Tj +(2750 static int \(*syscalls[]\)\(void\) = {) 170.3721 Tj 0 -37.9735 Td -(2751 [SYS_chdir] sys_chdir,) 126.687 Tj +(2751 [SYS_chdir] sys_chdir,) 126.6869 Tj 0 -47.4668 Td -(2752 [SYS_close] sys_close,) 126.687 Tj +(2752 [SYS_close] sys_close,) 126.6869 Tj 0 -56.9602 Td -(2753 [SYS_dup] sys_dup,) 117.95 Tj +(2753 [SYS_dup] sys_dup,) 117.9499 Tj 0 -66.4535 Td -(2754 [SYS_exec] sys_exec,) 122.318 Tj +(2754 [SYS_exec] sys_exec,) 122.3184 Tj 0 -75.9469 Td -(2755 [SYS_exit] sys_exit,) 122.318 Tj +(2755 [SYS_exit] sys_exit,) 122.3184 Tj 0 -85.4403 Td -(2756 [SYS_fork] sys_fork,) 122.318 Tj +(2756 [SYS_fork] sys_fork,) 122.3184 Tj 0 -94.9336 Td -(2757 [SYS_fstat] sys_fstat,) 126.687 Tj +(2757 [SYS_fstat] sys_fstat,) 126.6869 Tj 0 -104.427 Td -(2758 [SYS_getpid] sys_getpid,) 131.055 Tj -0 -113.92 Td -(2759 [SYS_kill] sys_kill,) 122.318 Tj -0 -123.414 Td -(2760 [SYS_link] sys_link,) 122.318 Tj -0 -132.907 Td -(2761 [SYS_mkdir] sys_mkdir,) 126.687 Tj -0 -142.4 Td -(2762 [SYS_mknod] sys_mknod,) 126.687 Tj -0 -151.894 Td -(2763 [SYS_open] sys_open,) 122.318 Tj -0 -161.387 Td -(2764 [SYS_pipe] sys_pipe,) 122.318 Tj -0 -170.88 Td -(2765 [SYS_read] sys_read,) 122.318 Tj -0 -180.374 Td -(2766 [SYS_sbrk] sys_sbrk,) 122.318 Tj -0 -189.867 Td -(2767 [SYS_sleep] sys_sleep,) 126.687 Tj -0 -199.361 Td -(2768 [SYS_unlink] sys_unlink,) 131.055 Tj -0 -208.854 Td -(2769 [SYS_wait] sys_wait,) 122.318 Tj -0 -218.347 Td -(2770 [SYS_write] sys_write,) 126.687 Tj -0 -227.841 Td +(2758 [SYS_getpid] sys_getpid,) 131.0554 Tj +0 -113.9203 Td +(2759 [SYS_kill] sys_kill,) 122.3184 Tj +0 -123.4137 Td +(2760 [SYS_link] sys_link,) 122.3184 Tj +0 -132.9071 Td +(2761 [SYS_mkdir] sys_mkdir,) 126.6869 Tj +0 -142.4004 Td +(2762 [SYS_mknod] sys_mknod,) 126.6869 Tj +0 -151.8938 Td +(2763 [SYS_open] sys_open,) 122.3184 Tj +0 -161.3871 Td +(2764 [SYS_pipe] sys_pipe,) 122.3184 Tj +0 -170.8805 Td +(2765 [SYS_read] sys_read,) 122.3184 Tj +0 -180.3739 Td +(2766 [SYS_sbrk] sys_sbrk,) 122.3184 Tj +0 -189.8672 Td +(2767 [SYS_sleep] sys_sleep,) 126.6869 Tj +0 -199.3606 Td +(2768 [SYS_unlink] sys_unlink,) 131.0554 Tj +0 -208.8539 Td +(2769 [SYS_wait] sys_wait,) 122.3184 Tj +0 -218.3473 Td +(2770 [SYS_write] sys_write,) 126.6869 Tj +0 -227.8407 Td (2771 };) 30.5796 Tj 0 -237.334 Td (2772 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (2773 void) 39.3166 Tj -0 -256.321 Td +0 -256.3207 Td (2774 syscall\(void\)) 78.6333 Tj -0 -265.814 Td +0 -265.8141 Td (2775 {) 26.2111 Tj -0 -275.307 Td +0 -275.3075 Td (2776 int num;) 65.5277 Tj -0 -284.801 Td +0 -284.8008 Td (2777 ) 21.8426 Tj -0 -294.294 Td -(2778 num = cp->tf->eax;) 109.213 Tj -0 -303.788 Td +0 -294.2942 Td +(2778 num = cp->tf->eax;) 109.2129 Tj +0 -303.7875 Td (2779 if\(num >= 0 && num < NELEM\(syscalls\) && syscalls[num]\ -\)) 266.479 Tj -0 -313.281 Td -(2780 cp->tf->eax = syscalls[num]\(\);) 170.372 Tj -0 -322.774 Td +\)) 266.4794 Tj +0 -313.2809 Td +(2780 cp->tf->eax = syscalls[num]\(\);) 170.3721 Tj +0 -322.7743 Td (2781 else {) 56.7907 Tj -0 -332.268 Td -(2782 cprintf\("%d %s: unknown sys call %d\\n",) 209.689 Tj +0 -332.2676 Td +(2782 cprintf\("%d %s: unknown sys call %d\\n",) 209.6887 Tj 0 -341.761 Td -(2783 cp->pid, cp->name, num\);) 179.109 Tj -0 -351.254 Td -(2784 cp->tf->eax = -1;) 113.581 Tj -0 -360.748 Td +(2783 cp->pid, cp->name, num\);) 179.1091 Tj +0 -351.2543 Td +(2784 cp->tf->eax = -1;) 113.5814 Tj +0 -360.7477 Td (2785 }) 34.9481 Tj -0 -370.241 Td +0 -370.2411 Td (2786 }) 26.2111 Tj -0 -379.734 Td +0 -379.7344 Td (2787 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2788 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2789 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2790 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2791 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2792 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2793 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2794 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2795 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2796 ) 21.8426 Tj 0 -474.668 Td (2797 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2798 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2799 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 27) 34.9481 Tj Q Q @@ -11256,8 +11263,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -11272,16 +11278,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysproc.c Page 1) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysproc.c Page 1) 174.7406 Tj 0 -28.4801 Td -(2800 #include "types.h") 100.476 Tj +(2800 #include "types.h") 100.4758 Tj 0 -37.9735 Td (2801 #include "defs.h") 96.1073 Tj 0 -47.4668 Td -(2802 #include "param.h") 100.476 Tj +(2802 #include "param.h") 100.4758 Tj 0 -56.9602 Td (2803 #include "mmu.h") 91.7388 Tj 0 -66.4535 Td @@ -11294,89 +11300,89 @@ q (2807 sys_fork\(void\)) 83.0018 Tj 0 -104.427 Td (2808 {) 26.2111 Tj -0 -113.92 Td -(2809 struct proc *np;) 100.476 Tj -0 -123.414 Td -(2810 ) 21.8426 Tj -0 -132.907 Td -(2811 if\(\(np = copyproc\(cp\)\) == 0\)) 152.898 Tj -0 -142.4 Td -(2812 return -1;) 83.0018 Tj -0 -151.894 Td -(2813 np->state = RUNNABLE;) 122.318 Tj -0 -161.387 Td -(2814 return np->pid;) 96.1073 Tj -0 -170.88 Td -(2815 }) 26.2111 Tj -0 -180.374 Td -(2816 ) 21.8426 Tj -0 -189.867 Td -(2817 int) 34.9481 Tj -0 -199.361 Td -(2818 sys_exit\(void\)) 83.0018 Tj -0 -208.854 Td -(2819 {) 26.2111 Tj -0 -218.347 Td -(2820 exit\(\);) 61.1592 Tj -0 -227.841 Td -(2821 return 0; // not reached) 139.792 Tj +0 -113.9203 Td +(2809 int pid;) 65.5277 Tj +0 -123.4137 Td +(2810 struct proc *np;) 100.4758 Tj +0 -132.9071 Td +(2811 ) 21.8426 Tj +0 -142.4004 Td +(2812 if\(\(np = copyproc\(cp\)\) == 0\)) 152.898 Tj +0 -151.8938 Td +(2813 return -1;) 83.0018 Tj +0 -161.3871 Td +(2814 pid = np->pid;) 91.7388 Tj +0 -170.8805 Td +(2815 np->state = RUNNABLE;) 122.3184 Tj +0 -180.3739 Td +(2816 return pid;) 78.6333 Tj +0 -189.8672 Td +(2817 }) 26.2111 Tj +0 -199.3606 Td +(2818 ) 21.8426 Tj +0 -208.8539 Td +(2819 int) 34.9481 Tj +0 -218.3473 Td +(2820 sys_exit\(void\)) 83.0018 Tj +0 -227.8407 Td +(2821 {) 26.2111 Tj 0 -237.334 Td -(2822 }) 26.2111 Tj -0 -246.827 Td -(2823 ) 21.8426 Tj -0 -256.321 Td -(2824 int) 34.9481 Tj -0 -265.814 Td -(2825 sys_wait\(void\)) 83.0018 Tj -0 -275.307 Td -(2826 {) 26.2111 Tj -0 -284.801 Td -(2827 return wait\(\);) 91.7388 Tj -0 -294.294 Td -(2828 }) 26.2111 Tj -0 -303.788 Td -(2829 ) 21.8426 Tj -0 -313.281 Td -(2830 int) 34.9481 Tj -0 -322.774 Td -(2831 sys_kill\(void\)) 83.0018 Tj -0 -332.268 Td -(2832 {) 26.2111 Tj +(2822 exit\(\);) 61.1592 Tj +0 -246.8274 Td +(2823 return 0; // not reached) 139.7925 Tj +0 -256.3207 Td +(2824 }) 26.2111 Tj +0 -265.8141 Td +(2825 ) 21.8426 Tj +0 -275.3075 Td +(2826 int) 34.9481 Tj +0 -284.8008 Td +(2827 sys_wait\(void\)) 83.0018 Tj +0 -294.2942 Td +(2828 {) 26.2111 Tj +0 -303.7875 Td +(2829 return wait\(\);) 91.7388 Tj +0 -313.2809 Td +(2830 }) 26.2111 Tj +0 -322.7743 Td +(2831 ) 21.8426 Tj +0 -332.2676 Td +(2832 int) 34.9481 Tj 0 -341.761 Td -(2833 int pid;) 65.5277 Tj -0 -351.254 Td -(2834 ) 21.8426 Tj -0 -360.748 Td -(2835 if\(argint\(0, &pid\) < 0\)) 131.055 Tj -0 -370.241 Td -(2836 return -1;) 83.0018 Tj -0 -379.734 Td -(2837 return kill\(pid\);) 104.844 Tj -0 -389.228 Td -(2838 }) 26.2111 Tj -0 -398.721 Td -(2839 ) 21.8426 Tj -0 -408.214 Td -(2840 int) 34.9481 Tj -0 -417.708 Td -(2841 sys_getpid\(void\)) 91.7388 Tj -0 -427.201 Td -(2842 {) 26.2111 Tj -0 -436.695 Td -(2843 return cp->pid;) 96.1073 Tj -0 -446.188 Td -(2844 }) 26.2111 Tj -0 -455.681 Td -(2845 ) 21.8426 Tj -0 -465.175 Td -(2846 ) 21.8426 Tj +(2833 sys_kill\(void\)) 83.0018 Tj +0 -351.2543 Td +(2834 {) 26.2111 Tj +0 -360.7477 Td +(2835 int pid;) 65.5277 Tj +0 -370.2411 Td +(2836 ) 21.8426 Tj +0 -379.7344 Td +(2837 if\(argint\(0, &pid\) < 0\)) 131.0554 Tj +0 -389.2278 Td +(2838 return -1;) 83.0018 Tj +0 -398.7211 Td +(2839 return kill\(pid\);) 104.8443 Tj +0 -408.2145 Td +(2840 }) 26.2111 Tj +0 -417.7079 Td +(2841 ) 21.8426 Tj +0 -427.2012 Td +(2842 int) 34.9481 Tj +0 -436.6946 Td +(2843 sys_getpid\(void\)) 91.7388 Tj +0 -446.1879 Td +(2844 {) 26.2111 Tj +0 -455.6813 Td +(2845 return cp->pid;) 96.1073 Tj +0 -465.1747 Td +(2846 }) 26.2111 Tj 0 -474.668 Td (2847 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2848 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2849 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 28) 34.9481 Tj Q Q @@ -11391,10 +11397,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysproc.c Page 2) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysproc.c Page 2) 174.7406 Tj 0 -28.4801 Td (2850 int) 34.9481 Tj 0 -37.9735 Td @@ -11408,94 +11414,94 @@ q 0 -75.9469 Td (2855 ) 21.8426 Tj 0 -85.4403 Td -(2856 if\(argint\(0, &n\) < 0\)) 122.318 Tj +(2856 if\(argint\(0, &n\) < 0\)) 122.3184 Tj 0 -94.9336 Td (2857 return -1;) 83.0018 Tj 0 -104.427 Td (2858 if\(\(addr = growproc\(n\)\) < 0\)) 152.898 Tj -0 -113.92 Td +0 -113.9203 Td (2859 return -1;) 83.0018 Tj -0 -123.414 Td -(2860 setupsegs\(cp\);) 91.7388 Tj -0 -132.907 Td -(2861 return addr;) 83.0018 Tj -0 -142.4 Td -(2862 }) 26.2111 Tj -0 -151.894 Td -(2863 ) 21.8426 Tj -0 -161.387 Td -(2864 int) 34.9481 Tj -0 -170.88 Td -(2865 sys_sleep\(void\)) 87.3703 Tj -0 -180.374 Td -(2866 {) 26.2111 Tj -0 -189.867 Td -(2867 int n, ticks0;) 91.7388 Tj -0 -199.361 Td -(2868 ) 21.8426 Tj -0 -208.854 Td -(2869 if\(argint\(0, &n\) < 0\)) 122.318 Tj -0 -218.347 Td -(2870 return -1;) 83.0018 Tj -0 -227.841 Td -(2871 acquire\(&tickslock\);) 117.95 Tj +0 -123.4137 Td +(2860 return addr;) 83.0018 Tj +0 -132.9071 Td +(2861 }) 26.2111 Tj +0 -142.4004 Td +(2862 ) 21.8426 Tj +0 -151.8938 Td +(2863 int) 34.9481 Tj +0 -161.3871 Td +(2864 sys_sleep\(void\)) 87.3703 Tj +0 -170.8805 Td +(2865 {) 26.2111 Tj +0 -180.3739 Td +(2866 int n, ticks0;) 91.7388 Tj +0 -189.8672 Td +(2867 ) 21.8426 Tj +0 -199.3606 Td +(2868 if\(argint\(0, &n\) < 0\)) 122.3184 Tj +0 -208.8539 Td +(2869 return -1;) 83.0018 Tj +0 -218.3473 Td +(2870 acquire\(&tickslock\);) 117.9499 Tj +0 -227.8407 Td +(2871 ticks0 = ticks;) 96.1073 Tj 0 -237.334 Td -(2872 ticks0 = ticks;) 96.1073 Tj -0 -246.827 Td -(2873 while\(ticks - ticks0 < n\){) 144.161 Tj -0 -256.321 Td -(2874 if\(cp->killed\){) 104.844 Tj -0 -265.814 Td -(2875 release\(&tickslock\);) 135.424 Tj -0 -275.307 Td -(2876 return -1;) 91.7388 Tj -0 -284.801 Td -(2877 }) 43.6851 Tj -0 -294.294 Td -(2878 sleep\(&ticks, &tickslock\);) 152.898 Tj -0 -303.788 Td -(2879 }) 34.9481 Tj -0 -313.281 Td -(2880 release\(&tickslock\);) 117.95 Tj -0 -322.774 Td -(2881 return 0;) 69.8962 Tj -0 -332.268 Td -(2882 }) 26.2111 Tj +(2872 while\(ticks - ticks0 < n\){) 144.161 Tj +0 -246.8274 Td +(2873 if\(cp->killed\){) 104.8443 Tj +0 -256.3207 Td +(2874 release\(&tickslock\);) 135.4239 Tj +0 -265.8141 Td +(2875 return -1;) 91.7388 Tj +0 -275.3075 Td +(2876 }) 43.6851 Tj +0 -284.8008 Td +(2877 sleep\(&ticks, &tickslock\);) 152.898 Tj +0 -294.2942 Td +(2878 }) 34.9481 Tj +0 -303.7875 Td +(2879 release\(&tickslock\);) 117.9499 Tj +0 -313.2809 Td +(2880 return 0;) 69.8962 Tj +0 -322.7743 Td +(2881 }) 26.2111 Tj +0 -332.2676 Td +(2882 ) 21.8426 Tj 0 -341.761 Td (2883 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (2884 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (2885 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (2886 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (2887 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2888 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2889 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2890 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2891 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2892 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2893 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2894 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2895 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2896 ) 21.8426 Tj 0 -474.668 Td (2897 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2898 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2899 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 28) 34.9481 Tj Q Q @@ -11524,8 +11530,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -11540,10 +11545,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/buf.h Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/buf.h Page 1) 157.2665 Tj 0 -28.4801 Td (2900 struct buf {) 74.2647 Tj 0 -37.9735 Td @@ -11553,98 +11558,98 @@ q 0 -56.9602 Td (2903 uint sector;) 83.0018 Tj 0 -66.4535 Td -(2904 struct buf *prev; // LRU cache list) 183.478 Tj +(2904 struct buf *prev; // LRU cache list) 183.4776 Tj 0 -75.9469 Td -(2905 struct buf *next;) 104.844 Tj +(2905 struct buf *next;) 104.8443 Tj 0 -85.4403 Td -(2906 struct buf *qnext; // disk queue) 170.372 Tj +(2906 struct buf *qnext; // disk queue) 170.3721 Tj 0 -94.9336 Td -(2907 uchar data[512];) 100.476 Tj +(2907 uchar data[512];) 100.4758 Tj 0 -104.427 Td (2908 };) 30.5796 Tj -0 -113.92 Td -(2909 #define B_BUSY 0x1 // buffer is locked by some process) 266.479 Tj -0 -123.414 Td -(2910 #define B_VALID 0x2 // buffer has been read from disk) 257.742 Tj -0 -132.907 Td -(2911 #define B_DIRTY 0x4 // buffer needs to be written to disk) 275.216 Tj -0 -142.4 Td +0 -113.9203 Td +(2909 #define B_BUSY 0x1 // buffer is locked by some process) 266.4794 Tj +0 -123.4137 Td +(2910 #define B_VALID 0x2 // buffer has been read from disk) 257.7424 Tj +0 -132.9071 Td +(2911 #define B_DIRTY 0x4 // buffer needs to be written to disk) 275.2164 Tj +0 -142.4004 Td (2912 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (2913 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (2914 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (2915 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (2916 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (2917 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (2918 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (2919 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (2920 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (2921 ) 21.8426 Tj 0 -237.334 Td (2922 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (2923 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (2924 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (2925 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (2926 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (2927 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (2928 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (2929 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (2930 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (2931 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (2932 ) 21.8426 Tj 0 -341.761 Td (2933 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (2934 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (2935 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (2936 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (2937 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2938 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2939 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2940 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2941 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2942 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2943 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2944 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2945 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2946 ) 21.8426 Tj 0 -474.668 Td (2947 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2948 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2949 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 29) 34.9481 Tj Q Q @@ -11659,16 +11664,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/dev.h Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/dev.h Page 1) 157.2665 Tj 0 -28.4801 Td (2950 struct devsw {) 83.0018 Tj 0 -37.9735 Td -(2951 int \(*read\)\(struct inode*, char*, int\);) 200.952 Tj +(2951 int \(*read\)\(struct inode*, char*, int\);) 200.9517 Tj 0 -47.4668 Td -(2952 int \(*write\)\(struct inode*, char*, int\);) 205.32 Tj +(2952 int \(*write\)\(struct inode*, char*, int\);) 205.3202 Tj 0 -56.9602 Td (2953 };) 30.5796 Tj 0 -66.4535 Td @@ -11681,89 +11686,89 @@ q (2957 #define CONSOLE 1) 96.1073 Tj 0 -104.427 Td (2958 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (2959 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (2960 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (2961 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (2962 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (2963 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (2964 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (2965 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (2966 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (2967 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (2968 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (2969 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (2970 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (2971 ) 21.8426 Tj 0 -237.334 Td (2972 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (2973 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (2974 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (2975 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (2976 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (2977 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (2978 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (2979 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (2980 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (2981 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (2982 ) 21.8426 Tj 0 -341.761 Td (2983 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (2984 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (2985 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (2986 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (2987 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (2988 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (2989 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (2990 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (2991 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (2992 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (2993 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (2994 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (2995 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (2996 ) 21.8426 Tj 0 -474.668 Td (2997 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (2998 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (2999 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 29) 34.9481 Tj Q Q @@ -11792,8 +11797,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -11808,18 +11812,18 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fcntl.h Page 1) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fcntl.h Page 1) 166.0035 Tj 0 -28.4801 Td -(3000 #define O_RDONLY 0x000) 122.318 Tj +(3000 #define O_RDONLY 0x000) 122.3184 Tj 0 -37.9735 Td -(3001 #define O_WRONLY 0x001) 122.318 Tj +(3001 #define O_WRONLY 0x001) 122.3184 Tj 0 -47.4668 Td -(3002 #define O_RDWR 0x002) 122.318 Tj +(3002 #define O_RDWR 0x002) 122.3184 Tj 0 -56.9602 Td -(3003 #define O_CREATE 0x200) 122.318 Tj +(3003 #define O_CREATE 0x200) 122.3184 Tj 0 -66.4535 Td (3004 ) 21.8426 Tj 0 -75.9469 Td @@ -11830,89 +11834,89 @@ q (3007 ) 21.8426 Tj 0 -104.427 Td (3008 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (3009 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (3010 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (3011 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (3012 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (3013 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (3014 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (3015 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (3016 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (3017 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (3018 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (3019 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (3020 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (3021 ) 21.8426 Tj 0 -237.334 Td (3022 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (3023 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (3024 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (3025 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (3026 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (3027 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (3028 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (3029 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (3030 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (3031 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (3032 ) 21.8426 Tj 0 -341.761 Td (3033 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (3034 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (3035 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3036 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3037 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3038 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (3039 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (3040 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (3041 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (3042 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3043 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3044 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3045 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3046 ) 21.8426 Tj 0 -474.668 Td (3047 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3048 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3049 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 30) 34.9481 Tj Q Q @@ -11927,111 +11931,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/stat.h Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/stat.h Page 1) 161.635 Tj 0 -28.4801 Td (3050 struct stat {) 78.6333 Tj 0 -37.9735 Td -(3051 int dev; // Device number) 157.267 Tj +(3051 int dev; // Device number) 157.2665 Tj 0 -47.4668 Td -(3052 uint ino; // Inode number on device) 196.583 Tj +(3052 uint ino; // Inode number on device) 196.5831 Tj 0 -56.9602 Td (3053 short type; // Type of file) 152.898 Tj 0 -66.4535 Td -(3054 short nlink; // Number of links to file) 200.952 Tj +(3054 short nlink; // Number of links to file) 200.9517 Tj 0 -75.9469 Td -(3055 uint size; // Size of file in bytes) 192.215 Tj +(3055 uint size; // Size of file in bytes) 192.2146 Tj 0 -85.4403 Td (3056 };) 30.5796 Tj 0 -94.9336 Td (3057 ) 21.8426 Tj 0 -104.427 Td (3058 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (3059 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (3060 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (3061 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (3062 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (3063 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (3064 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (3065 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (3066 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (3067 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (3068 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (3069 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (3070 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (3071 ) 21.8426 Tj 0 -237.334 Td (3072 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (3073 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (3074 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (3075 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (3076 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (3077 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (3078 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (3079 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (3080 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (3081 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (3082 ) 21.8426 Tj 0 -341.761 Td (3083 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (3084 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (3085 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3086 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3087 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3088 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (3089 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (3090 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (3091 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (3092 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3093 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3094 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3095 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3096 ) 21.8426 Tj 0 -474.668 Td (3097 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3098 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3099 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 30) 34.9481 Tj Q Q @@ -12060,8 +12064,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -12076,111 +12079,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/file.h Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/file.h Page 1) 161.635 Tj 0 -28.4801 Td (3100 struct file {) 78.6333 Tj 0 -37.9735 Td -(3101 enum { FD_CLOSED, FD_NONE, FD_PIPE, FD_INODE } type;) 257.742 Tj +(3101 enum { FD_CLOSED, FD_NONE, FD_PIPE, FD_INODE } type;) 257.7424 Tj 0 -47.4668 Td -(3102 int ref; // reference count) 148.529 Tj +(3102 int ref; // reference count) 148.5295 Tj 0 -56.9602 Td (3103 char readable;) 91.7388 Tj 0 -66.4535 Td (3104 char writable;) 91.7388 Tj 0 -75.9469 Td -(3105 struct pipe *pipe;) 109.213 Tj +(3105 struct pipe *pipe;) 109.2129 Tj 0 -85.4403 Td -(3106 struct inode *ip;) 104.844 Tj +(3106 struct inode *ip;) 104.8443 Tj 0 -94.9336 Td (3107 uint off;) 69.8962 Tj 0 -104.427 Td (3108 };) 30.5796 Tj -0 -113.92 Td +0 -113.9203 Td (3109 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (3110 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (3111 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (3112 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (3113 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (3114 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (3115 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (3116 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (3117 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (3118 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (3119 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (3120 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (3121 ) 21.8426 Tj 0 -237.334 Td (3122 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (3123 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (3124 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (3125 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (3126 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (3127 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (3128 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (3129 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (3130 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (3131 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (3132 ) 21.8426 Tj 0 -341.761 Td (3133 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (3134 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (3135 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3136 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3137 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3138 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (3139 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (3140 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (3141 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (3142 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3143 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3144 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3145 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3146 ) 21.8426 Tj 0 -474.668 Td (3147 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3148 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3149 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 31) 34.9481 Tj Q Q @@ -12195,116 +12198,116 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.h Page 1) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.h Page 1) 152.898 Tj 0 -28.4801 Td (3150 // On-disk file system format.) 152.898 Tj 0 -37.9735 Td -(3151 // Both the kernel and user programs use this header file.) 275.216 Tj +(3151 // Both the kernel and user programs use this header file.) 275.2164 Tj 0 -47.4668 Td (3152 ) 21.8426 Tj 0 -56.9602 Td -(3153 // Block 0 is unused.) 113.581 Tj +(3153 // Block 0 is unused.) 113.5814 Tj 0 -66.4535 Td -(3154 // Block 1 is super block.) 135.424 Tj +(3154 // Block 1 is super block.) 135.4239 Tj 0 -75.9469 Td -(3155 // Inodes start at block 2.) 139.792 Tj +(3155 // Inodes start at block 2.) 139.7925 Tj 0 -85.4403 Td (3156 ) 21.8426 Tj 0 -94.9336 Td (3157 #define BSIZE 512 // block size) 161.635 Tj 0 -104.427 Td (3158 ) 21.8426 Tj -0 -113.92 Td -(3159 // File system super block) 135.424 Tj -0 -123.414 Td -(3160 struct superblock {) 104.844 Tj -0 -132.907 Td +0 -113.9203 Td +(3159 // File system super block) 135.4239 Tj +0 -123.4137 Td +(3160 struct superblock {) 104.8443 Tj +0 -132.9071 Td (3161 uint size; // Size of file system image \(blocks\ -\)) 275.216 Tj -0 -142.4 Td -(3162 uint nblocks; // Number of data blocks) 218.426 Tj -0 -151.894 Td -(3163 uint ninodes; // Number of inodes.) 200.952 Tj -0 -161.387 Td +\)) 275.2164 Tj +0 -142.4004 Td +(3162 uint nblocks; // Number of data blocks) 218.4257 Tj +0 -151.8938 Td +(3163 uint ninodes; // Number of inodes.) 200.9517 Tj +0 -161.3871 Td (3164 };) 30.5796 Tj -0 -170.88 Td +0 -170.8805 Td (3165 ) 21.8426 Tj -0 -180.374 Td -(3166 #define NADDRS \(NDIRECT+1\)) 135.424 Tj -0 -189.867 Td -(3167 #define NDIRECT 12) 100.476 Tj -0 -199.361 Td -(3168 #define INDIRECT 12) 104.844 Tj -0 -208.854 Td -(3169 #define NINDIRECT \(BSIZE / sizeof\(uint\)\)) 196.583 Tj -0 -218.347 Td -(3170 #define MAXFILE \(NDIRECT + NINDIRECT\)) 187.846 Tj -0 -227.841 Td +0 -180.3739 Td +(3166 #define NADDRS \(NDIRECT+1\)) 135.4239 Tj +0 -189.8672 Td +(3167 #define NDIRECT 12) 100.4758 Tj +0 -199.3606 Td +(3168 #define INDIRECT 12) 104.8443 Tj +0 -208.8539 Td +(3169 #define NINDIRECT \(BSIZE / sizeof\(uint\)\)) 196.5831 Tj +0 -218.3473 Td +(3170 #define MAXFILE \(NDIRECT + NINDIRECT\)) 187.8461 Tj +0 -227.8407 Td (3171 ) 21.8426 Tj 0 -237.334 Td -(3172 // On-disk inode structure) 135.424 Tj -0 -246.827 Td +(3172 // On-disk inode structure) 135.4239 Tj +0 -246.8274 Td (3173 struct dinode {) 87.3703 Tj -0 -256.321 Td -(3174 short type; // File type) 179.109 Tj -0 -265.814 Td +0 -256.3207 Td +(3174 short type; // File type) 179.1091 Tj +0 -265.8141 Td (3175 short major; // Major device number \(T_DEV onl\ -y\)) 279.585 Tj -0 -275.307 Td +y\)) 279.5849 Tj +0 -275.3075 Td (3176 short minor; // Minor device number \(T_DEV onl\ -y\)) 279.585 Tj -0 -284.801 Td +y\)) 279.5849 Tj +0 -284.8008 Td (3177 short nlink; // Number of links to inode in fil\ -e system) 310.165 Tj -0 -294.294 Td -(3178 uint size; // Size of file \(bytes\)) 227.163 Tj -0 -303.788 Td -(3179 uint addrs[NADDRS]; // Data block addresses) 227.163 Tj -0 -313.281 Td +e system) 310.1645 Tj +0 -294.2942 Td +(3178 uint size; // Size of file \(bytes\)) 227.1628 Tj +0 -303.7875 Td +(3179 uint addrs[NADDRS]; // Data block addresses) 227.1628 Tj +0 -313.2809 Td (3180 };) 30.5796 Tj -0 -322.774 Td +0 -322.7743 Td (3181 ) 21.8426 Tj -0 -332.268 Td -(3182 #define T_DIR 1 // Directory) 157.267 Tj +0 -332.2676 Td +(3182 #define T_DIR 1 // Directory) 157.2665 Tj 0 -341.761 Td -(3183 #define T_FILE 2 // File) 135.424 Tj -0 -351.254 Td -(3184 #define T_DEV 3 // Special device) 179.109 Tj -0 -360.748 Td +(3183 #define T_FILE 2 // File) 135.4239 Tj +0 -351.2543 Td +(3184 #define T_DEV 3 // Special device) 179.1091 Tj +0 -360.7477 Td (3185 ) 21.8426 Tj -0 -370.241 Td -(3186 // Inodes per block.) 109.213 Tj -0 -379.734 Td -(3187 #define IPB \(BSIZE / sizeof\(struct dinode\)\)) 253.374 Tj -0 -389.228 Td +0 -370.2411 Td +(3186 // Inodes per block.) 109.2129 Tj +0 -379.7344 Td +(3187 #define IPB \(BSIZE / sizeof\(struct dinode\)\)) 253.3738 Tj +0 -389.2278 Td (3188 ) 21.8426 Tj -0 -398.721 Td -(3189 // Block containing inode i) 139.792 Tj -0 -408.214 Td -(3190 #define IBLOCK\(i\) \(\(i\) / IPB + 2\)) 183.478 Tj -0 -417.708 Td +0 -398.7211 Td +(3189 // Block containing inode i) 139.7925 Tj +0 -408.2145 Td +(3190 #define IBLOCK\(i\) \(\(i\) / IPB + 2\)) 183.4776 Tj +0 -417.7079 Td (3191 ) 21.8426 Tj -0 -427.201 Td -(3192 // Bitmap bits per block) 126.687 Tj -0 -436.695 Td -(3193 #define BPB \(BSIZE*8\)) 157.267 Tj -0 -446.188 Td +0 -427.2012 Td +(3192 // Bitmap bits per block) 126.6869 Tj +0 -436.6946 Td +(3193 #define BPB \(BSIZE*8\)) 157.2665 Tj +0 -446.1879 Td (3194 ) 21.8426 Tj -0 -455.681 Td -(3195 // Block containing bit for block b) 174.741 Tj -0 -465.175 Td +0 -455.6813 Td +(3195 // Block containing bit for block b) 174.7406 Tj +0 -465.1747 Td (3196 #define BBLOCK\(b, ninodes\) \(b/BPB + \(ninodes\)/IPB + 3\ -\)) 257.742 Tj +\)) 257.7424 Tj 0 -474.668 Td (3197 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3198 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3199 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 31) 34.9481 Tj Q Q @@ -12333,8 +12336,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -12349,13 +12351,13 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.h Page 2) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.h Page 2) 152.898 Tj 0 -28.4801 Td (3200 // Directory is a file containing a sequence of dirent str\ -uctures.) 310.165 Tj +uctures.) 310.1645 Tj 0 -37.9735 Td (3201 #define DIRSIZ 14) 96.1073 Tj 0 -47.4668 Td @@ -12365,96 +12367,96 @@ uctures.) 310.165 Tj 0 -66.4535 Td (3204 ushort inum;) 83.0018 Tj 0 -75.9469 Td -(3205 char name[DIRSIZ];) 109.213 Tj +(3205 char name[DIRSIZ];) 109.2129 Tj 0 -85.4403 Td (3206 };) 30.5796 Tj 0 -94.9336 Td (3207 ) 21.8426 Tj 0 -104.427 Td (3208 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (3209 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (3210 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (3211 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (3212 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (3213 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (3214 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (3215 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (3216 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (3217 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (3218 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (3219 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (3220 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (3221 ) 21.8426 Tj 0 -237.334 Td (3222 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (3223 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (3224 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (3225 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (3226 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (3227 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (3228 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (3229 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (3230 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (3231 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (3232 ) 21.8426 Tj 0 -341.761 Td (3233 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (3234 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (3235 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3236 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3237 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3238 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (3239 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (3240 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (3241 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (3242 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3243 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3244 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3245 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3246 ) 21.8426 Tj 0 -474.668 Td (3247 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3248 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3249 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 32) 34.9481 Tj Q Q @@ -12469,10 +12471,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fsvar.h Page 1) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fsvar.h Page 1) 166.0035 Tj 0 -28.4801 Td (3250 // in-core file system types) 144.161 Tj 0 -37.9735 Td @@ -12480,100 +12482,100 @@ q 0 -47.4668 Td (3252 struct inode {) 83.0018 Tj 0 -56.9602 Td -(3253 uint dev; // Device number) 187.846 Tj +(3253 uint dev; // Device number) 187.8461 Tj 0 -66.4535 Td -(3254 uint inum; // Inode number) 183.478 Tj +(3254 uint inum; // Inode number) 183.4776 Tj 0 -75.9469 Td -(3255 int ref; // Reference count) 196.583 Tj +(3255 int ref; // Reference count) 196.5831 Tj 0 -85.4403 Td -(3256 int flags; // I_BUSY, I_VALID) 196.583 Tj +(3256 int flags; // I_BUSY, I_VALID) 196.5831 Tj 0 -94.9336 Td (3257 ) 21.8426 Tj 0 -104.427 Td -(3258 short type; // copy of disk inode) 209.689 Tj -0 -113.92 Td +(3258 short type; // copy of disk inode) 209.6887 Tj +0 -113.9203 Td (3259 short major;) 83.0018 Tj -0 -123.414 Td +0 -123.4137 Td (3260 short minor;) 83.0018 Tj -0 -132.907 Td +0 -132.9071 Td (3261 short nlink;) 83.0018 Tj -0 -142.4 Td +0 -142.4004 Td (3262 uint size;) 74.2647 Tj -0 -151.894 Td -(3263 uint addrs[NADDRS];) 113.581 Tj -0 -161.387 Td +0 -151.8938 Td +(3263 uint addrs[NADDRS];) 113.5814 Tj +0 -161.3871 Td (3264 };) 30.5796 Tj -0 -170.88 Td +0 -170.8805 Td (3265 ) 21.8426 Tj -0 -180.374 Td -(3266 #define I_BUSY 0x1) 100.476 Tj -0 -189.867 Td -(3267 #define I_VALID 0x2) 104.844 Tj -0 -199.361 Td +0 -180.3739 Td +(3266 #define I_BUSY 0x1) 100.4758 Tj +0 -189.8672 Td +(3267 #define I_VALID 0x2) 104.8443 Tj +0 -199.3606 Td (3268 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (3269 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (3270 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (3271 ) 21.8426 Tj 0 -237.334 Td (3272 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (3273 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (3274 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (3275 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (3276 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (3277 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (3278 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (3279 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (3280 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (3281 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (3282 ) 21.8426 Tj 0 -341.761 Td (3283 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (3284 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (3285 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3286 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3287 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3288 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (3289 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (3290 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (3291 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (3292 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3293 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3294 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3295 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3296 ) 21.8426 Tj 0 -474.668 Td (3297 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3298 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3299 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 32) 34.9481 Tj Q Q @@ -12602,8 +12604,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -12618,20 +12619,20 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/ide.c Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/ide.c Page 1) 157.2665 Tj 0 -28.4801 Td -(3300 // Simple PIO-based \(non-DMA\) IDE driver code.) 222.794 Tj +(3300 // Simple PIO-based \(non-DMA\) IDE driver code.) 222.7942 Tj 0 -37.9735 Td (3301 ) 21.8426 Tj 0 -47.4668 Td -(3302 #include "types.h") 100.476 Tj +(3302 #include "types.h") 100.4758 Tj 0 -56.9602 Td (3303 #include "defs.h") 96.1073 Tj 0 -66.4535 Td -(3304 #include "param.h") 100.476 Tj +(3304 #include "param.h") 100.4758 Tj 0 -75.9469 Td (3305 #include "mmu.h") 91.7388 Tj 0 -85.4403 Td @@ -12639,93 +12640,93 @@ q 0 -94.9336 Td (3307 #include "x86.h") 91.7388 Tj 0 -104.427 Td -(3308 #include "traps.h") 100.476 Tj -0 -113.92 Td -(3309 #include "spinlock.h") 113.581 Tj -0 -123.414 Td +(3308 #include "traps.h") 100.4758 Tj +0 -113.9203 Td +(3309 #include "spinlock.h") 113.5814 Tj +0 -123.4137 Td (3310 #include "buf.h") 91.7388 Tj -0 -132.907 Td +0 -132.9071 Td (3311 ) 21.8426 Tj -0 -142.4 Td -(3312 #define IDE_BSY 0x80) 135.424 Tj -0 -151.894 Td -(3313 #define IDE_DRDY 0x40) 135.424 Tj -0 -161.387 Td -(3314 #define IDE_DF 0x20) 135.424 Tj -0 -170.88 Td -(3315 #define IDE_ERR 0x01) 135.424 Tj -0 -180.374 Td +0 -142.4004 Td +(3312 #define IDE_BSY 0x80) 135.4239 Tj +0 -151.8938 Td +(3313 #define IDE_DRDY 0x40) 135.4239 Tj +0 -161.3871 Td +(3314 #define IDE_DF 0x20) 135.4239 Tj +0 -170.8805 Td +(3315 #define IDE_ERR 0x01) 135.4239 Tj +0 -180.3739 Td (3316 ) 21.8426 Tj -0 -189.867 Td -(3317 #define IDE_CMD_READ 0x20) 135.424 Tj -0 -199.361 Td -(3318 #define IDE_CMD_WRITE 0x30) 135.424 Tj -0 -208.854 Td +0 -189.8672 Td +(3317 #define IDE_CMD_READ 0x20) 135.4239 Tj +0 -199.3606 Td +(3318 #define IDE_CMD_WRITE 0x30) 135.4239 Tj +0 -208.8539 Td (3319 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (3320 // ide_queue points to the buf now being read/written to t\ -he disk.) 310.165 Tj -0 -227.841 Td +he disk.) 310.1645 Tj +0 -227.8407 Td (3321 // ide_queue->qnext points to the next buf to be processed\ -.) 279.585 Tj +.) 279.5849 Tj 0 -237.334 Td -(3322 // You must hold ide_lock while manipulating queue.) 244.637 Tj -0 -246.827 Td +(3322 // You must hold ide_lock while manipulating queue.) 244.6368 Tj +0 -246.8274 Td (3323 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (3324 static struct spinlock ide_lock;) 161.635 Tj -0 -265.814 Td -(3325 static struct buf *ide_queue;) 148.529 Tj -0 -275.307 Td +0 -265.8141 Td +(3325 static struct buf *ide_queue;) 148.5295 Tj +0 -275.3075 Td (3326 ) 21.8426 Tj -0 -284.801 Td -(3327 static int disk_1_present;) 135.424 Tj -0 -294.294 Td +0 -284.8008 Td +(3327 static int disk_1_present;) 135.4239 Tj +0 -294.2942 Td (3328 static void ide_start_request\(\);) 161.635 Tj -0 -303.788 Td +0 -303.7875 Td (3329 ) 21.8426 Tj -0 -313.281 Td -(3330 // Wait for IDE disk to become ready.) 183.478 Tj -0 -322.774 Td +0 -313.2809 Td +(3330 // Wait for IDE disk to become ready.) 183.4776 Tj +0 -322.7743 Td (3331 static int) 65.5277 Tj -0 -332.268 Td -(3332 ide_wait_ready\(int check_error\)) 157.267 Tj +0 -332.2676 Td +(3332 ide_wait_ready\(int check_error\)) 157.2665 Tj 0 -341.761 Td (3333 {) 26.2111 Tj -0 -351.254 Td +0 -351.2543 Td (3334 int r;) 56.7907 Tj -0 -360.748 Td +0 -360.7477 Td (3335 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3336 while\(\(\(r = inb\(0x1f7\)\) & IDE_BSY\) || !\(r & IDE_\ -DRDY\)\)) 266.479 Tj -0 -379.734 Td +DRDY\)\)) 266.4794 Tj +0 -379.7344 Td (3337 ;) 43.6851 Tj -0 -389.228 Td -(3338 if\(check_error && \(r & \(IDE_DF|IDE_ERR\)\) != 0\)) 231.531 Tj -0 -398.721 Td +0 -389.2278 Td +(3338 if\(check_error && \(r & \(IDE_DF|IDE_ERR\)\) != 0\)) 231.5313 Tj +0 -398.7211 Td (3339 return -1;) 83.0018 Tj -0 -408.214 Td +0 -408.2145 Td (3340 return 0;) 69.8962 Tj -0 -417.708 Td +0 -417.7079 Td (3341 }) 26.2111 Tj -0 -427.201 Td +0 -427.2012 Td (3342 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3343 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3344 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3345 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3346 ) 21.8426 Tj 0 -474.668 Td (3347 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3348 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3349 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 33) 34.9481 Tj Q Q @@ -12740,10 +12741,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/ide.c Page 2) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/ide.c Page 2) 157.2665 Tj 0 -28.4801 Td (3350 void) 39.3166 Tj 0 -37.9735 Td @@ -12755,97 +12756,97 @@ q 0 -66.4535 Td (3354 ) 21.8426 Tj 0 -75.9469 Td -(3355 initlock\(&ide_lock, "ide"\);) 148.529 Tj +(3355 initlock\(&ide_lock, "ide"\);) 148.5295 Tj 0 -85.4403 Td -(3356 pic_enable\(IRQ_IDE\);) 117.95 Tj +(3356 pic_enable\(IRQ_IDE\);) 117.9499 Tj 0 -94.9336 Td -(3357 ioapic_enable\(IRQ_IDE, ncpu - 1\);) 174.741 Tj +(3357 ioapic_enable\(IRQ_IDE, ncpu - 1\);) 174.7406 Tj 0 -104.427 Td -(3358 ide_wait_ready\(0\);) 109.213 Tj -0 -113.92 Td +(3358 ide_wait_ready\(0\);) 109.2129 Tj +0 -113.9203 Td (3359 ) 21.8426 Tj -0 -123.414 Td -(3360 // Check if disk 1 is present) 157.267 Tj -0 -132.907 Td -(3361 outb\(0x1f6, 0xe0 | \(1<<4\)\);) 148.529 Tj -0 -142.4 Td -(3362 for\(i=0; i<1000; i++\){) 126.687 Tj -0 -151.894 Td -(3363 if\(inb\(0x1f7\) != 0\){) 126.687 Tj -0 -161.387 Td -(3364 disk_1_present = 1;) 131.055 Tj -0 -170.88 Td +0 -123.4137 Td +(3360 // Check if disk 1 is present) 157.2665 Tj +0 -132.9071 Td +(3361 outb\(0x1f6, 0xe0 | \(1<<4\)\);) 148.5295 Tj +0 -142.4004 Td +(3362 for\(i=0; i<1000; i++\){) 126.6869 Tj +0 -151.8938 Td +(3363 if\(inb\(0x1f7\) != 0\){) 126.6869 Tj +0 -161.3871 Td +(3364 disk_1_present = 1;) 131.0554 Tj +0 -170.8805 Td (3365 break;) 74.2647 Tj -0 -180.374 Td +0 -180.3739 Td (3366 }) 43.6851 Tj -0 -189.867 Td +0 -189.8672 Td (3367 }) 34.9481 Tj -0 -199.361 Td +0 -199.3606 Td (3368 ) 21.8426 Tj -0 -208.854 Td -(3369 // Switch back to disk 0.) 139.792 Tj -0 -218.347 Td -(3370 outb\(0x1f6, 0xe0 | \(0<<4\)\);) 148.529 Tj -0 -227.841 Td +0 -208.8539 Td +(3369 // Switch back to disk 0.) 139.7925 Tj +0 -218.3473 Td +(3370 outb\(0x1f6, 0xe0 | \(0<<4\)\);) 148.5295 Tj +0 -227.8407 Td (3371 }) 26.2111 Tj 0 -237.334 Td (3372 ) 21.8426 Tj -0 -246.827 Td -(3373 // Start the request for b. Caller must hold ide_lock.) 262.111 Tj -0 -256.321 Td +0 -246.8274 Td +(3373 // Start the request for b. Caller must hold ide_lock.) 262.1109 Tj +0 -256.3207 Td (3374 static void) 69.8962 Tj -0 -265.814 Td +0 -265.8141 Td (3375 ide_start_request\(struct buf *b\)) 161.635 Tj -0 -275.307 Td +0 -275.3075 Td (3376 {) 26.2111 Tj -0 -284.801 Td +0 -284.8008 Td (3377 if\(b == 0\)) 74.2647 Tj -0 -294.294 Td -(3378 panic\("ide_start_request"\);) 157.267 Tj -0 -303.788 Td +0 -294.2942 Td +(3378 panic\("ide_start_request"\);) 157.2665 Tj +0 -303.7875 Td (3379 ) 21.8426 Tj -0 -313.281 Td -(3380 ide_wait_ready\(0\);) 109.213 Tj -0 -322.774 Td -(3381 outb\(0x3f6, 0\); // generate interrupt) 196.583 Tj -0 -332.268 Td -(3382 outb\(0x1f2, 1\); // number of sectors) 192.215 Tj +0 -313.2809 Td +(3380 ide_wait_ready\(0\);) 109.2129 Tj +0 -322.7743 Td +(3381 outb\(0x3f6, 0\); // generate interrupt) 196.5831 Tj +0 -332.2676 Td +(3382 outb\(0x1f2, 1\); // number of sectors) 192.2146 Tj 0 -341.761 Td (3383 outb\(0x1f3, b->sector & 0xff\);) 161.635 Tj -0 -351.254 Td -(3384 outb\(0x1f4, \(b->sector >> 8\) & 0xff\);) 192.215 Tj -0 -360.748 Td -(3385 outb\(0x1f5, \(b->sector >> 16\) & 0xff\);) 196.583 Tj -0 -370.241 Td +0 -351.2543 Td +(3384 outb\(0x1f4, \(b->sector >> 8\) & 0xff\);) 192.2146 Tj +0 -360.7477 Td +(3385 outb\(0x1f5, \(b->sector >> 16\) & 0xff\);) 196.5831 Tj +0 -370.2411 Td (3386 outb\(0x1f6, 0xe0 | \(\(b->dev&1\)<<4\) | \(\(b->sector>\ >24\)&0x0f\)\);) 297.059 Tj -0 -379.734 Td -(3387 if\(b->flags & B_DIRTY\){) 131.055 Tj -0 -389.228 Td -(3388 outb\(0x1f7, IDE_CMD_WRITE\);) 157.267 Tj -0 -398.721 Td -(3389 outsl\(0x1f0, b->data, 512/4\);) 166.004 Tj -0 -408.214 Td +0 -379.7344 Td +(3387 if\(b->flags & B_DIRTY\){) 131.0554 Tj +0 -389.2278 Td +(3388 outb\(0x1f7, IDE_CMD_WRITE\);) 157.2665 Tj +0 -398.7211 Td +(3389 outsl\(0x1f0, b->data, 512/4\);) 166.0035 Tj +0 -408.2145 Td (3390 } else {) 65.5277 Tj -0 -417.708 Td +0 -417.7079 Td (3391 outb\(0x1f7, IDE_CMD_READ\);) 152.898 Tj -0 -427.201 Td +0 -427.2012 Td (3392 }) 34.9481 Tj -0 -436.695 Td +0 -436.6946 Td (3393 }) 26.2111 Tj -0 -446.188 Td +0 -446.1879 Td (3394 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3395 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3396 ) 21.8426 Tj 0 -474.668 Td (3397 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3398 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3399 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 33) 34.9481 Tj Q Q @@ -12874,8 +12875,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -12890,12 +12890,12 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/ide.c Page 3) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/ide.c Page 3) 157.2665 Tj 0 -28.4801 Td -(3400 // Interrupt handler.) 113.581 Tj +(3400 // Interrupt handler.) 113.5814 Tj 0 -37.9735 Td (3401 void) 39.3166 Tj 0 -47.4668 Td @@ -12907,94 +12907,94 @@ q 0 -75.9469 Td (3405 ) 21.8426 Tj 0 -85.4403 Td -(3406 acquire\(&ide_lock\);) 113.581 Tj +(3406 acquire\(&ide_lock\);) 113.5814 Tj 0 -94.9336 Td -(3407 if\(\(b = ide_queue\) == 0\){) 139.792 Tj +(3407 if\(\(b = ide_queue\) == 0\){) 139.7925 Tj 0 -104.427 Td -(3408 cprintf\("stray ide interrupt\\n"\);) 183.478 Tj -0 -113.92 Td -(3409 release\(&ide_lock\);) 122.318 Tj -0 -123.414 Td -(3410 return;) 69.8962 Tj -0 -132.907 Td -(3411 }) 34.9481 Tj -0 -142.4 Td -(3412 ) 21.8426 Tj -0 -151.894 Td -(3413 // Read data if needed.) 131.055 Tj -0 -161.387 Td -(3414 if\(!\(b->flags & B_DIRTY\) && ide_wait_ready\(1\) >= 0\)) 253.374 Tj -0 -170.88 Td -(3415 insl\(0x1f0, b->data, 512/4\);) 161.635 Tj -0 -180.374 Td -(3416 ) 21.8426 Tj -0 -189.867 Td -(3417 // Wake process waiting for this buf.) 192.215 Tj -0 -199.361 Td -(3418 b->flags |= B_VALID;) 117.95 Tj -0 -208.854 Td -(3419 b->flags &= ~B_DIRTY;) 122.318 Tj -0 -218.347 Td -(3420 wakeup\(b\);) 74.2647 Tj -0 -227.841 Td -(3421 ) 21.8426 Tj +(3408 release\(&ide_lock\);) 122.3184 Tj +0 -113.9203 Td +(3409 return;) 69.8962 Tj +0 -123.4137 Td +(3410 }) 34.9481 Tj +0 -132.9071 Td +(3411 ) 21.8426 Tj +0 -142.4004 Td +(3412 // Read data if needed.) 131.0554 Tj +0 -151.8938 Td +(3413 if\(!\(b->flags & B_DIRTY\) && ide_wait_ready\(1\) >= 0\)) 253.3738 Tj +0 -161.3871 Td +(3414 insl\(0x1f0, b->data, 512/4\);) 161.635 Tj +0 -170.8805 Td +(3415 ) 21.8426 Tj +0 -180.3739 Td +(3416 // Wake process waiting for this buf.) 192.2146 Tj +0 -189.8672 Td +(3417 b->flags |= B_VALID;) 117.9499 Tj +0 -199.3606 Td +(3418 b->flags &= ~B_DIRTY;) 122.3184 Tj +0 -208.8539 Td +(3419 wakeup\(b\);) 74.2647 Tj +0 -218.3473 Td +(3420 ) 21.8426 Tj +0 -227.8407 Td +(3421 // Start disk on next buf in queue.) 183.4776 Tj 0 -237.334 Td -(3422 // Start disk on next buf in queue.) 183.478 Tj -0 -246.827 Td -(3423 if\(\(ide_queue = b->qnext\) != 0\)) 166.004 Tj -0 -256.321 Td -(3424 ide_start_request\(ide_queue\);) 166.004 Tj -0 -265.814 Td -(3425 ) 21.8426 Tj -0 -275.307 Td -(3426 release\(&ide_lock\);) 113.581 Tj -0 -284.801 Td -(3427 }) 26.2111 Tj -0 -294.294 Td +(3422 if\(\(ide_queue = b->qnext\) != 0\)) 166.0035 Tj +0 -246.8274 Td +(3423 ide_start_request\(ide_queue\);) 166.0035 Tj +0 -256.3207 Td +(3424 ) 21.8426 Tj +0 -265.8141 Td +(3425 release\(&ide_lock\);) 113.5814 Tj +0 -275.3075 Td +(3426 }) 26.2111 Tj +0 -284.8008 Td +(3427 ) 21.8426 Tj +0 -294.2942 Td (3428 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (3429 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (3430 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (3431 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (3432 ) 21.8426 Tj 0 -341.761 Td (3433 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (3434 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (3435 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3436 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3437 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3438 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (3439 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (3440 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (3441 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (3442 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3443 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3444 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3445 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3446 ) 21.8426 Tj 0 -474.668 Td (3447 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3448 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3449 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 34) 34.9481 Tj Q Q @@ -13009,113 +13009,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/ide.c Page 4) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/ide.c Page 4) 157.2665 Tj 0 -28.4801 Td -(3450 // Sync buf with disk.) 117.95 Tj +(3450 // Sync buf with disk.) 117.9499 Tj 0 -37.9735 Td (3451 // If B_DIRTY is set, write buf to disk, clear B_DIRTY, se\ -t B_VALID.) 318.902 Tj +t B_VALID.) 318.9016 Tj 0 -47.4668 Td (3452 // Else if B_VALID is not set, read buf from disk, set B_V\ ALID.) 297.059 Tj 0 -56.9602 Td (3453 void) 39.3166 Tj 0 -66.4535 Td -(3454 ide_rw\(struct buf *b\)) 113.581 Tj +(3454 ide_rw\(struct buf *b\)) 113.5814 Tj 0 -75.9469 Td (3455 {) 26.2111 Tj 0 -85.4403 Td -(3456 struct buf **pp;) 100.476 Tj +(3456 struct buf **pp;) 100.4758 Tj 0 -94.9336 Td (3457 ) 21.8426 Tj 0 -104.427 Td -(3458 if\(!\(b->flags & B_BUSY\)\)) 135.424 Tj -0 -113.92 Td -(3459 panic\("ide_rw: buf not busy"\);) 170.372 Tj -0 -123.414 Td -(3460 if\(\(b->flags & \(B_VALID|B_DIRTY\)\) == B_VALID\)) 227.163 Tj -0 -132.907 Td -(3461 panic\("ide_rw: nothing to do"\);) 174.741 Tj -0 -142.4 Td -(3462 if\(b->dev != 0 && !disk_1_present\)) 179.109 Tj -0 -151.894 Td -(3463 panic\("ide disk 1 not present"\);) 179.109 Tj -0 -161.387 Td +(3458 if\(!\(b->flags & B_BUSY\)\)) 135.4239 Tj +0 -113.9203 Td +(3459 panic\("ide_rw: buf not busy"\);) 170.3721 Tj +0 -123.4137 Td +(3460 if\(\(b->flags & \(B_VALID|B_DIRTY\)\) == B_VALID\)) 227.1628 Tj +0 -132.9071 Td +(3461 panic\("ide_rw: nothing to do"\);) 174.7406 Tj +0 -142.4004 Td +(3462 if\(b->dev != 0 && !disk_1_present\)) 179.1091 Tj +0 -151.8938 Td +(3463 panic\("ide disk 1 not present"\);) 179.1091 Tj +0 -161.3871 Td (3464 ) 21.8426 Tj -0 -170.88 Td -(3465 acquire\(&ide_lock\);) 113.581 Tj -0 -180.374 Td +0 -170.8805 Td +(3465 acquire\(&ide_lock\);) 113.5814 Tj +0 -180.3739 Td (3466 ) 21.8426 Tj -0 -189.867 Td -(3467 // Append b to ide_queue.) 139.792 Tj -0 -199.361 Td +0 -189.8672 Td +(3467 // Append b to ide_queue.) 139.7925 Tj +0 -199.3606 Td (3468 b->qnext = 0;) 87.3703 Tj -0 -208.854 Td -(3469 for\(pp=&ide_queue; *pp; pp=&\(*pp\)->qnext\)) 209.689 Tj -0 -218.347 Td +0 -208.8539 Td +(3469 for\(pp=&ide_queue; *pp; pp=&\(*pp\)->qnext\)) 209.6887 Tj +0 -218.3473 Td (3470 ;) 43.6851 Tj -0 -227.841 Td +0 -227.8407 Td (3471 *pp = b;) 65.5277 Tj 0 -237.334 Td (3472 ) 21.8426 Tj -0 -246.827 Td -(3473 // Start disk if necessary.) 148.529 Tj -0 -256.321 Td -(3474 if\(ide_queue == b\)) 109.213 Tj -0 -265.814 Td -(3475 ide_start_request\(b\);) 131.055 Tj -0 -275.307 Td +0 -246.8274 Td +(3473 // Start disk if necessary.) 148.5295 Tj +0 -256.3207 Td +(3474 if\(ide_queue == b\)) 109.2129 Tj +0 -265.8141 Td +(3475 ide_start_request\(b\);) 131.0554 Tj +0 -275.3075 Td (3476 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (3477 // Wait for request to finish.) 161.635 Tj -0 -294.294 Td -(3478 // Assuming will not sleep too long: ignore cp->killed.) 270.848 Tj -0 -303.788 Td -(3479 while\(\(b->flags & \(B_VALID|B_DIRTY\)\) != B_VALID\)) 240.268 Tj -0 -313.281 Td -(3480 sleep\(b, &ide_lock\);) 126.687 Tj -0 -322.774 Td +0 -294.2942 Td +(3478 // Assuming will not sleep too long: ignore cp->killed.) 270.8479 Tj +0 -303.7875 Td +(3479 while\(\(b->flags & \(B_VALID|B_DIRTY\)\) != B_VALID\)) 240.2683 Tj +0 -313.2809 Td +(3480 sleep\(b, &ide_lock\);) 126.6869 Tj +0 -322.7743 Td (3481 ) 21.8426 Tj -0 -332.268 Td -(3482 release\(&ide_lock\);) 113.581 Tj +0 -332.2676 Td +(3482 release\(&ide_lock\);) 113.5814 Tj 0 -341.761 Td (3483 }) 26.2111 Tj -0 -351.254 Td +0 -351.2543 Td (3484 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (3485 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3486 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3487 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3488 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (3489 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (3490 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (3491 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (3492 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3493 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3494 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3495 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3496 ) 21.8426 Tj 0 -474.668 Td (3497 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3498 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3499 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 34) 34.9481 Tj Q Q @@ -13144,8 +13144,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -13160,17 +13159,17 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bio.c Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/bio.c Page 1) 157.2665 Tj 0 -28.4801 Td (3500 // Buffer cache.) 91.7388 Tj 0 -37.9735 Td (3501 //) 30.5796 Tj 0 -47.4668 Td (3502 // The buffer cache is a linked list of buf structures hol\ -ding) 292.69 Tj +ding) 292.6905 Tj 0 -56.9602 Td (3503 // cached copies of disk block contents. Caching disk blo\ cks) 288.322 Tj @@ -13179,7 +13178,7 @@ cks) 288.322 Tj vides) 297.059 Tj 0 -75.9469 Td (3505 // a synchronization point for disk blocks used by multipl\ -e processes.) 327.639 Tj +e processes.) 327.6386 Tj 0 -85.4403 Td (3506 //) 30.5796 Tj 0 -94.9336 Td @@ -13187,90 +13186,90 @@ e processes.) 327.639 Tj 0 -104.427 Td (3508 // * To get a buffer for a particular disk block, call bre\ ad.) 288.322 Tj -0 -113.92 Td +0 -113.9203 Td (3509 // * After changing buffer data, call bwrite to flush it t\ o disk.) 305.796 Tj -0 -123.414 Td -(3510 // * When done with the buffer, call brelse.) 214.057 Tj -0 -132.907 Td -(3511 // * Do not use the buffer after calling brelse.) 231.531 Tj -0 -142.4 Td -(3512 // * Only one process at a time can use a buffer,) 235.9 Tj -0 -151.894 Td -(3513 // so do not keep them longer than necessary.) 235.9 Tj -0 -161.387 Td +0 -123.4137 Td +(3510 // * When done with the buffer, call brelse.) 214.0572 Tj +0 -132.9071 Td +(3511 // * Do not use the buffer after calling brelse.) 231.5313 Tj +0 -142.4004 Td +(3512 // * Only one process at a time can use a buffer,) 235.8998 Tj +0 -151.8938 Td +(3513 // so do not keep them longer than necessary.) 235.8998 Tj +0 -161.3871 Td (3514 //) 30.5796 Tj -0 -170.88 Td -(3515 // The implementation uses three state flags internally:) 266.479 Tj -0 -180.374 Td -(3516 // * B_BUSY: the block has been returned from bread) 244.637 Tj -0 -189.867 Td -(3517 // and has not been passed back to brelse.) 222.794 Tj -0 -199.361 Td -(3518 // * B_VALID: the buffer data has been initialized) 240.268 Tj -0 -208.854 Td -(3519 // with the associated disk block contents.) 227.163 Tj -0 -218.347 Td -(3520 // * B_DIRTY: the buffer data has been modified) 227.163 Tj -0 -227.841 Td -(3521 // and needs to be written to disk.) 192.215 Tj +0 -170.8805 Td +(3515 // The implementation uses three state flags internally:) 266.4794 Tj +0 -180.3739 Td +(3516 // * B_BUSY: the block has been returned from bread) 244.6368 Tj +0 -189.8672 Td +(3517 // and has not been passed back to brelse.) 222.7942 Tj +0 -199.3606 Td +(3518 // * B_VALID: the buffer data has been initialized) 240.2683 Tj +0 -208.8539 Td +(3519 // with the associated disk block contents.) 227.1628 Tj +0 -218.3473 Td +(3520 // * B_DIRTY: the buffer data has been modified) 227.1628 Tj +0 -227.8407 Td +(3521 // and needs to be written to disk.) 192.2146 Tj 0 -237.334 Td (3522 ) 21.8426 Tj -0 -246.827 Td -(3523 #include "types.h") 100.476 Tj -0 -256.321 Td +0 -246.8274 Td +(3523 #include "types.h") 100.4758 Tj +0 -256.3207 Td (3524 #include "defs.h") 96.1073 Tj -0 -265.814 Td -(3525 #include "param.h") 100.476 Tj -0 -275.307 Td -(3526 #include "spinlock.h") 113.581 Tj -0 -284.801 Td +0 -265.8141 Td +(3525 #include "param.h") 100.4758 Tj +0 -275.3075 Td +(3526 #include "spinlock.h") 113.5814 Tj +0 -284.8008 Td (3527 #include "buf.h") 91.7388 Tj -0 -294.294 Td +0 -294.2942 Td (3528 ) 21.8426 Tj -0 -303.788 Td -(3529 struct buf buf[NBUF];) 113.581 Tj -0 -313.281 Td -(3530 struct spinlock buf_table_lock;) 157.267 Tj -0 -322.774 Td +0 -303.7875 Td +(3529 struct buf buf[NBUF];) 113.5814 Tj +0 -313.2809 Td +(3530 struct spinlock buf_table_lock;) 157.2665 Tj +0 -322.7743 Td (3531 ) 21.8426 Tj -0 -332.268 Td -(3532 // Linked list of all buffers, through prev/next.) 235.9 Tj +0 -332.2676 Td +(3532 // Linked list of all buffers, through prev/next.) 235.8998 Tj 0 -341.761 Td -(3533 // bufhead->next is most recently used.) 192.215 Tj -0 -351.254 Td -(3534 // bufhead->tail is least recently used.) 196.583 Tj -0 -360.748 Td -(3535 struct buf bufhead;) 104.844 Tj -0 -370.241 Td +(3533 // bufhead->next is most recently used.) 192.2146 Tj +0 -351.2543 Td +(3534 // bufhead->tail is least recently used.) 196.5831 Tj +0 -360.7477 Td +(3535 struct buf bufhead;) 104.8443 Tj +0 -370.2411 Td (3536 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3537 void) 39.3166 Tj -0 -389.228 Td +0 -389.2278 Td (3538 binit\(void\)) 69.8962 Tj -0 -398.721 Td +0 -398.7211 Td (3539 {) 26.2111 Tj -0 -408.214 Td +0 -408.2145 Td (3540 struct buf *b;) 91.7388 Tj -0 -417.708 Td +0 -417.7079 Td (3541 ) 21.8426 Tj -0 -427.201 Td -(3542 initlock\(&buf_table_lock, "buf_table"\);) 200.952 Tj -0 -436.695 Td +0 -427.2012 Td +(3542 initlock\(&buf_table_lock, "buf_table"\);) 200.9517 Tj +0 -436.6946 Td (3543 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3544 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3545 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3546 ) 21.8426 Tj 0 -474.668 Td (3547 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3548 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3549 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 35) 34.9481 Tj Q Q @@ -13285,111 +13284,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bio.c Page 2) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/bio.c Page 2) 157.2665 Tj 0 -28.4801 Td -(3550 // Create linked list of buffers) 170.372 Tj +(3550 // Create linked list of buffers) 170.3721 Tj 0 -37.9735 Td -(3551 bufhead.prev = &bufhead;) 135.424 Tj +(3551 bufhead.prev = &bufhead;) 135.4239 Tj 0 -47.4668 Td -(3552 bufhead.next = &bufhead;) 135.424 Tj +(3552 bufhead.next = &bufhead;) 135.4239 Tj 0 -56.9602 Td -(3553 for\(b = buf; b < buf+NBUF; b++\){) 170.372 Tj +(3553 for\(b = buf; b < buf+NBUF; b++\){) 170.3721 Tj 0 -66.4535 Td -(3554 b->next = bufhead.next;) 139.792 Tj +(3554 b->next = bufhead.next;) 139.7925 Tj 0 -75.9469 Td -(3555 b->prev = &bufhead;) 122.318 Tj +(3555 b->prev = &bufhead;) 122.3184 Tj 0 -85.4403 Td -(3556 bufhead.next->prev = b;) 139.792 Tj +(3556 bufhead.next->prev = b;) 139.7925 Tj 0 -94.9336 Td -(3557 bufhead.next = b;) 113.581 Tj +(3557 bufhead.next = b;) 113.5814 Tj 0 -104.427 Td (3558 }) 34.9481 Tj -0 -113.92 Td +0 -113.9203 Td (3559 }) 26.2111 Tj -0 -123.414 Td +0 -123.4137 Td (3560 ) 21.8426 Tj -0 -132.907 Td -(3561 // Look through buffer cache for sector on device dev.) 257.742 Tj -0 -142.4 Td -(3562 // If not found, allocate fresh block.) 187.846 Tj -0 -151.894 Td -(3563 // In either case, return locked buffer.) 196.583 Tj -0 -161.387 Td -(3564 static struct buf*) 100.476 Tj -0 -170.88 Td -(3565 bget\(uint dev, uint sector\)) 139.792 Tj -0 -180.374 Td +0 -132.9071 Td +(3561 // Look through buffer cache for sector on device dev.) 257.7424 Tj +0 -142.4004 Td +(3562 // If not found, allocate fresh block.) 187.8461 Tj +0 -151.8938 Td +(3563 // In either case, return locked buffer.) 196.5831 Tj +0 -161.3871 Td +(3564 static struct buf*) 100.4758 Tj +0 -170.8805 Td +(3565 bget\(uint dev, uint sector\)) 139.7925 Tj +0 -180.3739 Td (3566 {) 26.2111 Tj -0 -189.867 Td +0 -189.8672 Td (3567 struct buf *b;) 91.7388 Tj -0 -199.361 Td +0 -199.3606 Td (3568 ) 21.8426 Tj -0 -208.854 Td -(3569 acquire\(&buf_table_lock\);) 139.792 Tj -0 -218.347 Td +0 -208.8539 Td +(3569 acquire\(&buf_table_lock\);) 139.7925 Tj +0 -218.3473 Td (3570 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (3571 loop:) 48.0537 Tj 0 -237.334 Td -(3572 // Try for cached block.) 135.424 Tj -0 -246.827 Td -(3573 for\(b = bufhead.next; b != &bufhead; b = b->next\){) 249.005 Tj -0 -256.321 Td -(3574 if\(\(b->flags & \(B_BUSY|B_VALID\)\) &&) 192.215 Tj -0 -265.814 Td -(3575 b->dev == dev && b->sector == sector\){) 218.426 Tj -0 -275.307 Td +(3572 // Try for cached block.) 135.4239 Tj +0 -246.8274 Td +(3573 for\(b = bufhead.next; b != &bufhead; b = b->next\){) 249.0053 Tj +0 -256.3207 Td +(3574 if\(\(b->flags & \(B_BUSY|B_VALID\)\) &&) 192.2146 Tj +0 -265.8141 Td +(3575 b->dev == dev && b->sector == sector\){) 218.4257 Tj +0 -275.3075 Td (3576 if\(b->flags & B_BUSY\){) 144.161 Tj -0 -284.801 Td -(3577 sleep\(buf, &buf_table_lock\);) 179.109 Tj -0 -294.294 Td -(3578 goto loop;) 100.476 Tj -0 -303.788 Td +0 -284.8008 Td +(3577 sleep\(buf, &buf_table_lock\);) 179.1091 Tj +0 -294.2942 Td +(3578 goto loop;) 100.4758 Tj +0 -303.7875 Td (3579 }) 52.4222 Tj -0 -313.281 Td -(3580 b->flags |= B_BUSY;) 131.055 Tj -0 -322.774 Td -(3581 release\(&buf_table_lock\);) 157.267 Tj -0 -332.268 Td +0 -313.2809 Td +(3580 b->flags |= B_BUSY;) 131.0554 Tj +0 -322.7743 Td +(3581 release\(&buf_table_lock\);) 157.2665 Tj +0 -332.2676 Td (3582 return b;) 87.3703 Tj 0 -341.761 Td (3583 }) 43.6851 Tj -0 -351.254 Td +0 -351.2543 Td (3584 }) 34.9481 Tj -0 -360.748 Td +0 -360.7477 Td (3585 ) 21.8426 Tj -0 -370.241 Td -(3586 // Allocate fresh block.) 135.424 Tj -0 -379.734 Td -(3587 for\(b = bufhead.prev; b != &bufhead; b = b->prev\){) 249.005 Tj -0 -389.228 Td -(3588 if\(\(b->flags & B_BUSY\) == 0\){) 166.004 Tj -0 -398.721 Td -(3589 b->flags = B_BUSY;) 126.687 Tj -0 -408.214 Td -(3590 b->dev = dev;) 104.844 Tj -0 -417.708 Td -(3591 b->sector = sector;) 131.055 Tj -0 -427.201 Td -(3592 release\(&buf_table_lock\);) 157.267 Tj -0 -436.695 Td +0 -370.2411 Td +(3586 // Allocate fresh block.) 135.4239 Tj +0 -379.7344 Td +(3587 for\(b = bufhead.prev; b != &bufhead; b = b->prev\){) 249.0053 Tj +0 -389.2278 Td +(3588 if\(\(b->flags & B_BUSY\) == 0\){) 166.0035 Tj +0 -398.7211 Td +(3589 b->flags = B_BUSY;) 126.6869 Tj +0 -408.2145 Td +(3590 b->dev = dev;) 104.8443 Tj +0 -417.7079 Td +(3591 b->sector = sector;) 131.0554 Tj +0 -427.2012 Td +(3592 release\(&buf_table_lock\);) 157.2665 Tj +0 -436.6946 Td (3593 return b;) 87.3703 Tj -0 -446.188 Td +0 -446.1879 Td (3594 }) 43.6851 Tj -0 -455.681 Td +0 -455.6813 Td (3595 }) 34.9481 Tj -0 -465.175 Td +0 -465.1747 Td (3596 panic\("bget: no buffers"\);) 144.161 Tj 0 -474.668 Td (3597 }) 26.2111 Tj -0 -484.161 Td +0 -484.1614 Td (3598 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3599 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 35) 34.9481 Tj Q Q @@ -13418,8 +13417,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -13434,13 +13432,13 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/bio.c Page 3) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/bio.c Page 3) 157.2665 Tj 0 -28.4801 Td (3600 // Return a B_BUSY buf with the contents of the indicated \ -disk sector.) 327.639 Tj +disk sector.) 327.6386 Tj 0 -37.9735 Td (3601 struct buf*) 69.8962 Tj 0 -47.4668 Td @@ -13452,94 +13450,94 @@ disk sector.) 327.639 Tj 0 -75.9469 Td (3605 ) 21.8426 Tj 0 -85.4403 Td -(3606 b = bget\(dev, sector\);) 126.687 Tj +(3606 b = bget\(dev, sector\);) 126.6869 Tj 0 -94.9336 Td -(3607 if\(!\(b->flags & B_VALID\)\)) 139.792 Tj +(3607 if\(!\(b->flags & B_VALID\)\)) 139.7925 Tj 0 -104.427 Td (3608 ide_rw\(b\);) 83.0018 Tj -0 -113.92 Td +0 -113.9203 Td (3609 return b;) 69.8962 Tj -0 -123.414 Td +0 -123.4137 Td (3610 }) 26.2111 Tj -0 -132.907 Td +0 -132.9071 Td (3611 ) 21.8426 Tj -0 -142.4 Td -(3612 // Write buf's contents to disk. Must be locked.) 235.9 Tj -0 -151.894 Td +0 -142.4004 Td +(3612 // Write buf's contents to disk. Must be locked.) 235.8998 Tj +0 -151.8938 Td (3613 void) 39.3166 Tj -0 -161.387 Td -(3614 bwrite\(struct buf *b\)) 113.581 Tj -0 -170.88 Td +0 -161.3871 Td +(3614 bwrite\(struct buf *b\)) 113.5814 Tj +0 -170.8805 Td (3615 {) 26.2111 Tj -0 -180.374 Td +0 -180.3739 Td (3616 if\(\(b->flags & B_BUSY\) == 0\)) 152.898 Tj -0 -189.867 Td -(3617 panic\("bwrite"\);) 109.213 Tj -0 -199.361 Td -(3618 b->flags |= B_DIRTY;) 117.95 Tj -0 -208.854 Td +0 -189.8672 Td +(3617 panic\("bwrite"\);) 109.2129 Tj +0 -199.3606 Td +(3618 b->flags |= B_DIRTY;) 117.9499 Tj +0 -208.8539 Td (3619 ide_rw\(b\);) 74.2647 Tj -0 -218.347 Td +0 -218.3473 Td (3620 }) 26.2111 Tj -0 -227.841 Td +0 -227.8407 Td (3621 ) 21.8426 Tj 0 -237.334 Td -(3622 // Release the buffer buf.) 135.424 Tj -0 -246.827 Td +(3622 // Release the buffer buf.) 135.4239 Tj +0 -246.8274 Td (3623 void) 39.3166 Tj -0 -256.321 Td -(3624 brelse\(struct buf *b\)) 113.581 Tj -0 -265.814 Td +0 -256.3207 Td +(3624 brelse\(struct buf *b\)) 113.5814 Tj +0 -265.8141 Td (3625 {) 26.2111 Tj -0 -275.307 Td +0 -275.3075 Td (3626 if\(\(b->flags & B_BUSY\) == 0\)) 152.898 Tj -0 -284.801 Td -(3627 panic\("brelse"\);) 109.213 Tj -0 -294.294 Td +0 -284.8008 Td +(3627 panic\("brelse"\);) 109.2129 Tj +0 -294.2942 Td (3628 ) 21.8426 Tj -0 -303.788 Td -(3629 acquire\(&buf_table_lock\);) 139.792 Tj -0 -313.281 Td +0 -303.7875 Td +(3629 acquire\(&buf_table_lock\);) 139.7925 Tj +0 -313.2809 Td (3630 ) 21.8426 Tj -0 -322.774 Td -(3631 b->next->prev = b->prev;) 135.424 Tj -0 -332.268 Td -(3632 b->prev->next = b->next;) 135.424 Tj +0 -322.7743 Td +(3631 b->next->prev = b->prev;) 135.4239 Tj +0 -332.2676 Td +(3632 b->prev->next = b->next;) 135.4239 Tj 0 -341.761 Td -(3633 b->next = bufhead.next;) 131.055 Tj -0 -351.254 Td -(3634 b->prev = &bufhead;) 113.581 Tj -0 -360.748 Td -(3635 bufhead.next->prev = b;) 131.055 Tj -0 -370.241 Td -(3636 bufhead.next = b;) 104.844 Tj -0 -379.734 Td +(3633 b->next = bufhead.next;) 131.0554 Tj +0 -351.2543 Td +(3634 b->prev = &bufhead;) 113.5814 Tj +0 -360.7477 Td +(3635 bufhead.next->prev = b;) 131.0554 Tj +0 -370.2411 Td +(3636 bufhead.next = b;) 104.8443 Tj +0 -379.7344 Td (3637 ) 21.8426 Tj -0 -389.228 Td -(3638 b->flags &= ~B_BUSY;) 117.95 Tj -0 -398.721 Td +0 -389.2278 Td +(3638 b->flags &= ~B_BUSY;) 117.9499 Tj +0 -398.7211 Td (3639 wakeup\(buf\);) 83.0018 Tj -0 -408.214 Td +0 -408.2145 Td (3640 ) 21.8426 Tj -0 -417.708 Td -(3641 release\(&buf_table_lock\);) 139.792 Tj -0 -427.201 Td +0 -417.7079 Td +(3641 release\(&buf_table_lock\);) 139.7925 Tj +0 -427.2012 Td (3642 }) 26.2111 Tj -0 -436.695 Td +0 -436.6946 Td (3643 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3644 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3645 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3646 ) 21.8426 Tj 0 -474.668 Td (3647 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3648 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3649 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 36) 34.9481 Tj Q Q @@ -13554,19 +13552,19 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 1) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 1) 152.898 Tj 0 -28.4801 Td -(3650 // File system implementation. Four layers:) 214.057 Tj +(3650 // File system implementation. Four layers:) 214.0572 Tj 0 -37.9735 Td -(3651 // + Blocks: allocator for raw disk blocks.) 218.426 Tj +(3651 // + Blocks: allocator for raw disk blocks.) 218.4257 Tj 0 -47.4668 Td -(3652 // + Files: inode allocator, reading, writing, metadata.) 275.216 Tj +(3652 // + Files: inode allocator, reading, writing, metadata.) 275.2164 Tj 0 -56.9602 Td (3653 // + Directories: inode with special contents \(list of \ -other inodes!\)) 332.007 Tj +other inodes!\)) 332.0071 Tj 0 -66.4535 Td (3654 // + Names: paths like /usr/rtm/xv6/fs.c for convenient \ naming.) 305.796 Tj @@ -13574,96 +13572,96 @@ naming.) 305.796 Tj (3655 //) 30.5796 Tj 0 -85.4403 Td (3656 // Disk layout is: superblock, inodes, block in-use bitmap\ -, data blocks.) 336.376 Tj +, data blocks.) 336.3756 Tj 0 -94.9336 Td (3657 //) 30.5796 Tj 0 -104.427 Td (3658 // This file contains the low-level file system manipulati\ -on) 283.953 Tj -0 -113.92 Td +on) 283.9534 Tj +0 -113.9203 Td (3659 // routines. The \(higher-level\) system call implementat\ -ions) 283.953 Tj -0 -123.414 Td -(3660 // are in sysfile.c.) 109.213 Tj -0 -132.907 Td +ions) 283.9534 Tj +0 -123.4137 Td +(3660 // are in sysfile.c.) 109.2129 Tj +0 -132.9071 Td (3661 ) 21.8426 Tj -0 -142.4 Td -(3662 #include "types.h") 100.476 Tj -0 -151.894 Td +0 -142.4004 Td +(3662 #include "types.h") 100.4758 Tj +0 -151.8938 Td (3663 #include "defs.h") 96.1073 Tj -0 -161.387 Td -(3664 #include "param.h") 100.476 Tj -0 -170.88 Td +0 -161.3871 Td +(3664 #include "param.h") 100.4758 Tj +0 -170.8805 Td (3665 #include "stat.h") 96.1073 Tj -0 -180.374 Td +0 -180.3739 Td (3666 #include "mmu.h") 91.7388 Tj -0 -189.867 Td +0 -189.8672 Td (3667 #include "proc.h") 96.1073 Tj -0 -199.361 Td -(3668 #include "spinlock.h") 113.581 Tj -0 -208.854 Td +0 -199.3606 Td +(3668 #include "spinlock.h") 113.5814 Tj +0 -208.8539 Td (3669 #include "buf.h") 91.7388 Tj -0 -218.347 Td +0 -218.3473 Td (3670 #include "fs.h") 87.3703 Tj -0 -227.841 Td -(3671 #include "fsvar.h") 100.476 Tj +0 -227.8407 Td +(3671 #include "fsvar.h") 100.4758 Tj 0 -237.334 Td (3672 #include "dev.h") 91.7388 Tj -0 -246.827 Td +0 -246.8274 Td (3673 ) 21.8426 Tj -0 -256.321 Td -(3674 #define min\(a, b\) \(\(a\) < \(b\) ? \(a\) : \(b\)\)) 200.952 Tj -0 -265.814 Td -(3675 static void itrunc\(struct inode*\);) 170.372 Tj -0 -275.307 Td +0 -256.3207 Td +(3674 #define min\(a, b\) \(\(a\) < \(b\) ? \(a\) : \(b\)\)) 200.9517 Tj +0 -265.8141 Td +(3675 static void itrunc\(struct inode*\);) 170.3721 Tj +0 -275.3075 Td (3676 ) 21.8426 Tj -0 -284.801 Td -(3677 // Read the super block.) 126.687 Tj -0 -294.294 Td +0 -284.8008 Td +(3677 // Read the super block.) 126.6869 Tj +0 -294.2942 Td (3678 static void) 69.8962 Tj -0 -303.788 Td -(3679 readsb\(int dev, struct superblock *sb\)) 187.846 Tj -0 -313.281 Td +0 -303.7875 Td +(3679 readsb\(int dev, struct superblock *sb\)) 187.8461 Tj +0 -313.2809 Td (3680 {) 26.2111 Tj -0 -322.774 Td +0 -322.7743 Td (3681 struct buf *bp;) 96.1073 Tj -0 -332.268 Td +0 -332.2676 Td (3682 ) 21.8426 Tj 0 -341.761 Td -(3683 bp = bread\(dev, 1\);) 113.581 Tj -0 -351.254 Td -(3684 memmove\(sb, bp->data, sizeof\(*sb\)\);) 183.478 Tj -0 -360.748 Td +(3683 bp = bread\(dev, 1\);) 113.5814 Tj +0 -351.2543 Td +(3684 memmove\(sb, bp->data, sizeof\(*sb\)\);) 183.4776 Tj +0 -360.7477 Td (3685 brelse\(bp\);) 78.6333 Tj -0 -370.241 Td +0 -370.2411 Td (3686 }) 26.2111 Tj -0 -379.734 Td +0 -379.7344 Td (3687 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3688 // Zero a block.) 91.7388 Tj -0 -398.721 Td +0 -398.7211 Td (3689 static void) 69.8962 Tj -0 -408.214 Td -(3690 bzero\(int dev, int bno\)) 122.318 Tj -0 -417.708 Td +0 -408.2145 Td +(3690 bzero\(int dev, int bno\)) 122.3184 Tj +0 -417.7079 Td (3691 {) 26.2111 Tj -0 -427.201 Td +0 -427.2012 Td (3692 struct buf *bp;) 96.1073 Tj -0 -436.695 Td +0 -436.6946 Td (3693 ) 21.8426 Tj -0 -446.188 Td -(3694 bp = bread\(dev, bno\);) 122.318 Tj -0 -455.681 Td -(3695 memset\(bp->data, 0, BSIZE\);) 148.529 Tj -0 -465.175 Td +0 -446.1879 Td +(3694 bp = bread\(dev, bno\);) 122.3184 Tj +0 -455.6813 Td +(3695 memset\(bp->data, 0, BSIZE\);) 148.5295 Tj +0 -465.1747 Td (3696 bwrite\(bp\);) 78.6333 Tj 0 -474.668 Td (3697 brelse\(bp\);) 78.6333 Tj -0 -484.161 Td +0 -484.1614 Td (3698 }) 26.2111 Tj -0 -493.655 Td +0 -493.6547 Td (3699 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 36) 34.9481 Tj Q Q @@ -13692,8 +13690,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -13708,16 +13705,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 2) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 2) 152.898 Tj 0 -28.4801 Td (3700 // Blocks.) 65.5277 Tj 0 -37.9735 Td (3701 ) 21.8426 Tj 0 -47.4668 Td -(3702 // Allocate a disk block.) 131.055 Tj +(3702 // Allocate a disk block.) 131.0554 Tj 0 -56.9602 Td (3703 static uint) 69.8962 Tj 0 -66.4535 Td @@ -13729,92 +13726,92 @@ q 0 -94.9336 Td (3707 struct buf *bp;) 96.1073 Tj 0 -104.427 Td -(3708 struct superblock sb;) 122.318 Tj -0 -113.92 Td +(3708 struct superblock sb;) 122.3184 Tj +0 -113.9203 Td (3709 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (3710 bp = 0;) 61.1592 Tj -0 -132.907 Td -(3711 readsb\(dev, &sb\);) 104.844 Tj -0 -142.4 Td -(3712 for\(b = 0; b < sb.size; b += BPB\){) 179.109 Tj -0 -151.894 Td -(3713 bp = bread\(dev, BBLOCK\(b, sb.ninodes\)\);) 209.689 Tj -0 -161.387 Td +0 -132.9071 Td +(3711 readsb\(dev, &sb\);) 104.8443 Tj +0 -142.4004 Td +(3712 for\(b = 0; b < sb.size; b += BPB\){) 179.1091 Tj +0 -151.8938 Td +(3713 bp = bread\(dev, BBLOCK\(b, sb.ninodes\)\);) 209.6887 Tj +0 -161.3871 Td (3714 for\(bi = 0; bi < BPB; bi++\){) 161.635 Tj -0 -170.88 Td -(3715 m = 1 << \(bi % 8\);) 126.687 Tj -0 -180.374 Td +0 -170.8805 Td +(3715 m = 1 << \(bi % 8\);) 126.6869 Tj +0 -180.3739 Td (3716 if\(\(bp->data[bi/8] & m\) == 0\){ // Is block free\ -?) 262.111 Tj -0 -189.867 Td +?) 262.1109 Tj +0 -189.8672 Td (3717 bp->data[bi/8] |= m; // Mark block in use on disk\ -.) 279.585 Tj -0 -199.361 Td -(3718 bwrite\(bp\);) 104.844 Tj -0 -208.854 Td -(3719 brelse\(bp\);) 104.844 Tj -0 -218.347 Td -(3720 return b + bi;) 117.95 Tj -0 -227.841 Td +.) 279.5849 Tj +0 -199.3606 Td +(3718 bwrite\(bp\);) 104.8443 Tj +0 -208.8539 Td +(3719 brelse\(bp\);) 104.8443 Tj +0 -218.3473 Td +(3720 return b + bi;) 117.9499 Tj +0 -227.8407 Td (3721 }) 52.4222 Tj 0 -237.334 Td (3722 }) 43.6851 Tj -0 -246.827 Td +0 -246.8274 Td (3723 brelse\(bp\);) 87.3703 Tj -0 -256.321 Td +0 -256.3207 Td (3724 }) 34.9481 Tj -0 -265.814 Td -(3725 panic\("balloc: out of blocks"\);) 166.004 Tj -0 -275.307 Td +0 -265.8141 Td +(3725 panic\("balloc: out of blocks"\);) 166.0035 Tj +0 -275.3075 Td (3726 }) 26.2111 Tj -0 -284.801 Td +0 -284.8008 Td (3727 ) 21.8426 Tj -0 -294.294 Td -(3728 // Free a disk block.) 113.581 Tj -0 -303.788 Td +0 -294.2942 Td +(3728 // Free a disk block.) 113.5814 Tj +0 -303.7875 Td (3729 static void) 69.8962 Tj -0 -313.281 Td -(3730 bfree\(int dev, uint b\)) 117.95 Tj -0 -322.774 Td +0 -313.2809 Td +(3730 bfree\(int dev, uint b\)) 117.9499 Tj +0 -322.7743 Td (3731 {) 26.2111 Tj -0 -332.268 Td +0 -332.2676 Td (3732 struct buf *bp;) 96.1073 Tj 0 -341.761 Td -(3733 struct superblock sb;) 122.318 Tj -0 -351.254 Td +(3733 struct superblock sb;) 122.3184 Tj +0 -351.2543 Td (3734 int bi, m;) 74.2647 Tj -0 -360.748 Td +0 -360.7477 Td (3735 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3736 bzero\(dev, b\);) 91.7388 Tj -0 -379.734 Td +0 -379.7344 Td (3737 ) 21.8426 Tj -0 -389.228 Td -(3738 readsb\(dev, &sb\);) 104.844 Tj -0 -398.721 Td -(3739 bp = bread\(dev, BBLOCK\(b, sb.ninodes\)\);) 200.952 Tj -0 -408.214 Td +0 -389.2278 Td +(3738 readsb\(dev, &sb\);) 104.8443 Tj +0 -398.7211 Td +(3739 bp = bread\(dev, BBLOCK\(b, sb.ninodes\)\);) 200.9517 Tj +0 -408.2145 Td (3740 bi = b % BPB;) 87.3703 Tj -0 -417.708 Td -(3741 m = 1 << \(bi % 8\);) 109.213 Tj -0 -427.201 Td -(3742 if\(\(bp->data[bi/8] & m\) == 0\)) 157.267 Tj -0 -436.695 Td +0 -417.7079 Td +(3741 m = 1 << \(bi % 8\);) 109.2129 Tj +0 -427.2012 Td +(3742 if\(\(bp->data[bi/8] & m\) == 0\)) 157.2665 Tj +0 -436.6946 Td (3743 panic\("freeing free block"\);) 161.635 Tj -0 -446.188 Td -(3744 bp->data[bi/8] &= ~m; // Mark block free on disk.) 249.005 Tj -0 -455.681 Td +0 -446.1879 Td +(3744 bp->data[bi/8] &= ~m; // Mark block free on disk.) 249.0053 Tj +0 -455.6813 Td (3745 bwrite\(bp\);) 78.6333 Tj -0 -465.175 Td +0 -465.1747 Td (3746 brelse\(bp\);) 78.6333 Tj 0 -474.668 Td (3747 }) 26.2111 Tj -0 -484.161 Td +0 -484.1614 Td (3748 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3749 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 37) 34.9481 Tj Q Q @@ -13829,123 +13826,123 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 3) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 3) 152.898 Tj 0 -28.4801 Td (3750 // Inodes.) 65.5277 Tj 0 -37.9735 Td (3751 //) 30.5796 Tj 0 -47.4668 Td -(3752 // An inode is a single, unnamed file in the file system.) 270.848 Tj +(3752 // An inode is a single, unnamed file in the file system.) 270.8479 Tj 0 -56.9602 Td (3753 // The inode disk structure holds metadata \(the type, dev\ -ice numbers,) 323.27 Tj +ice numbers,) 323.2701 Tj 0 -66.4535 Td (3754 // and data size\) along with a list of blocks where the a\ -ssociated) 310.165 Tj +ssociated) 310.1645 Tj 0 -75.9469 Td -(3755 // data can be found.) 113.581 Tj +(3755 // data can be found.) 113.5814 Tj 0 -85.4403 Td (3756 //) 30.5796 Tj 0 -94.9336 Td (3757 // The inodes are laid out sequentially on disk immediatel\ y after) 305.796 Tj 0 -104.427 Td -(3758 // the superblock. The kernel keeps a cache of the in-use) 275.216 Tj -0 -113.92 Td +(3758 // the superblock. The kernel keeps a cache of the in-use) 275.2164 Tj +0 -113.9203 Td (3759 // on-disk structures to provide a place for synchronizing\ access) 305.796 Tj -0 -123.414 Td -(3760 // to inodes shared between multiple processes.) 227.163 Tj -0 -132.907 Td +0 -123.4137 Td +(3760 // to inodes shared between multiple processes.) 227.1628 Tj +0 -132.9071 Td (3761 //) 30.5796 Tj -0 -142.4 Td +0 -142.4004 Td (3762 // ip->ref counts the number of pointer references to this\ cached) 305.796 Tj -0 -151.894 Td +0 -151.8938 Td (3763 // inode; references are typically kept in struct file and\ - in cp->cwd.) 327.639 Tj -0 -161.387 Td + in cp->cwd.) 327.6386 Tj +0 -161.3871 Td (3764 // When ip->ref falls to zero, the inode is no longer cach\ ed.) 288.322 Tj -0 -170.88 Td +0 -170.8805 Td (3765 // It is an error to use an inode without holding a refere\ -nce to it.) 318.902 Tj -0 -180.374 Td +nce to it.) 318.9016 Tj +0 -180.3739 Td (3766 //) 30.5796 Tj -0 -189.867 Td -(3767 // Processes are only allowed to read and write inode) 253.374 Tj -0 -199.361 Td -(3768 // metadata and contents when holding the inode's lock,) 262.111 Tj -0 -208.854 Td -(3769 // represented by the I_BUSY flag in the in-memory copy.) 266.479 Tj -0 -218.347 Td -(3770 // Because inode locks are held during disk accesses,) 253.374 Tj -0 -227.841 Td -(3771 // they are implemented using a flag rather than with) 253.374 Tj +0 -189.8672 Td +(3767 // Processes are only allowed to read and write inode) 253.3738 Tj +0 -199.3606 Td +(3768 // metadata and contents when holding the inode's lock,) 262.1109 Tj +0 -208.8539 Td +(3769 // represented by the I_BUSY flag in the in-memory copy.) 266.4794 Tj +0 -218.3473 Td +(3770 // Because inode locks are held during disk accesses,) 253.3738 Tj +0 -227.8407 Td +(3771 // they are implemented using a flag rather than with) 253.3738 Tj 0 -237.334 Td -(3772 // spin locks. Callers are responsible for locking) 244.637 Tj -0 -246.827 Td +(3772 // spin locks. Callers are responsible for locking) 244.6368 Tj +0 -246.8274 Td (3773 // inodes before passing them to routines in this file; le\ aving) 297.059 Tj -0 -256.321 Td +0 -256.3207 Td (3774 // this responsibility with the caller makes it possible f\ or them) 305.796 Tj -0 -265.814 Td -(3775 // to create arbitrarily-sized atomic operations.) 235.9 Tj -0 -275.307 Td +0 -265.8141 Td +(3775 // to create arbitrarily-sized atomic operations.) 235.8998 Tj +0 -275.3075 Td (3776 //) 30.5796 Tj -0 -284.801 Td -(3777 // To give maximum control over locking to the callers,) 262.111 Tj -0 -294.294 Td -(3778 // the routines in this file that return inode pointers) 262.111 Tj -0 -303.788 Td +0 -284.8008 Td +(3777 // To give maximum control over locking to the callers,) 262.1109 Tj +0 -294.2942 Td +(3778 // the routines in this file that return inode pointers) 262.1109 Tj +0 -303.7875 Td (3779 // return pointers to *unlocked* inodes. It is the caller\ -s') 283.953 Tj -0 -313.281 Td +s') 283.9534 Tj +0 -313.2809 Td (3780 // responsibility to lock them before using them. A non-z\ ero) 288.322 Tj -0 -322.774 Td -(3781 // ip->ref keeps these unlocked inodes in the cache.) 249.005 Tj -0 -332.268 Td +0 -322.7743 Td +(3781 // ip->ref keeps these unlocked inodes in the cache.) 249.0053 Tj +0 -332.2676 Td (3782 ) 21.8426 Tj 0 -341.761 Td (3783 struct {) 56.7907 Tj -0 -351.254 Td -(3784 struct spinlock lock;) 122.318 Tj -0 -360.748 Td -(3785 struct inode inode[NINODE];) 148.529 Tj -0 -370.241 Td +0 -351.2543 Td +(3784 struct spinlock lock;) 122.3184 Tj +0 -360.7477 Td +(3785 struct inode inode[NINODE];) 148.5295 Tj +0 -370.2411 Td (3786 } icache;) 61.1592 Tj -0 -379.734 Td +0 -379.7344 Td (3787 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3788 void) 39.3166 Tj -0 -398.721 Td +0 -398.7211 Td (3789 iinit\(void\)) 69.8962 Tj -0 -408.214 Td +0 -408.2145 Td (3790 {) 26.2111 Tj -0 -417.708 Td -(3791 initlock\(&icache.lock, "icache.lock"\);) 196.583 Tj -0 -427.201 Td +0 -417.7079 Td +(3791 initlock\(&icache.lock, "icache.lock"\);) 196.5831 Tj +0 -427.2012 Td (3792 }) 26.2111 Tj -0 -436.695 Td +0 -436.6946 Td (3793 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3794 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3795 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3796 ) 21.8426 Tj 0 -474.668 Td (3797 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3798 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3799 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 37) 34.9481 Tj Q Q @@ -13974,8 +13971,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -13990,114 +13986,114 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 4) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 4) 152.898 Tj 0 -28.4801 Td -(3800 // Find the inode with number inum on device dev) 231.531 Tj +(3800 // Find the inode with number inum on device dev) 231.5313 Tj 0 -37.9735 Td -(3801 // and return the in-memory copy.) 166.004 Tj +(3801 // and return the in-memory copy.) 166.0035 Tj 0 -47.4668 Td -(3802 static struct inode*) 109.213 Tj +(3802 static struct inode*) 109.2129 Tj 0 -56.9602 Td -(3803 iget\(uint dev, uint inum\)) 131.055 Tj +(3803 iget\(uint dev, uint inum\)) 131.0554 Tj 0 -66.4535 Td (3804 {) 26.2111 Tj 0 -75.9469 Td -(3805 struct inode *ip, *empty;) 139.792 Tj +(3805 struct inode *ip, *empty;) 139.7925 Tj 0 -85.4403 Td (3806 ) 21.8426 Tj 0 -94.9336 Td -(3807 acquire\(&icache.lock\);) 126.687 Tj +(3807 acquire\(&icache.lock\);) 126.6869 Tj 0 -104.427 Td (3808 ) 21.8426 Tj -0 -113.92 Td -(3809 // Try for cached inode.) 135.424 Tj -0 -123.414 Td +0 -113.9203 Td +(3809 // Try for cached inode.) 135.4239 Tj +0 -123.4137 Td (3810 empty = 0;) 74.2647 Tj -0 -132.907 Td +0 -132.9071 Td (3811 for\(ip = &icache.inode[0]; ip < &icache.inode[NINODE]; \ ip++\){) 297.059 Tj -0 -142.4 Td +0 -142.4004 Td (3812 if\(ip->ref > 0 && ip->dev == dev && ip->inum == inum\)\ -{) 275.216 Tj -0 -151.894 Td +{) 275.2164 Tj +0 -151.8938 Td (3813 ip->ref++;) 91.7388 Tj -0 -161.387 Td +0 -161.3871 Td (3814 release\(&icache.lock\);) 144.161 Tj -0 -170.88 Td +0 -170.8805 Td (3815 return ip;) 91.7388 Tj -0 -180.374 Td +0 -180.3739 Td (3816 }) 43.6851 Tj -0 -189.867 Td +0 -189.8672 Td (3817 if\(empty == 0 && ip->ref == 0\) // Remember empty \ slot.) 288.322 Tj -0 -199.361 Td +0 -199.3606 Td (3818 empty = ip;) 96.1073 Tj -0 -208.854 Td +0 -208.8539 Td (3819 }) 34.9481 Tj -0 -218.347 Td +0 -218.3473 Td (3820 ) 21.8426 Tj -0 -227.841 Td -(3821 // Allocate fresh inode.) 135.424 Tj +0 -227.8407 Td +(3821 // Allocate fresh inode.) 135.4239 Tj 0 -237.334 Td (3822 if\(empty == 0\)) 91.7388 Tj -0 -246.827 Td -(3823 panic\("iget: no inodes"\);) 148.529 Tj -0 -256.321 Td +0 -246.8274 Td +(3823 panic\("iget: no inodes"\);) 148.5295 Tj +0 -256.3207 Td (3824 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (3825 ip = empty;) 78.6333 Tj -0 -275.307 Td +0 -275.3075 Td (3826 ip->dev = dev;) 91.7388 Tj -0 -284.801 Td -(3827 ip->inum = inum;) 100.476 Tj -0 -294.294 Td +0 -284.8008 Td +(3827 ip->inum = inum;) 100.4758 Tj +0 -294.2942 Td (3828 ip->ref = 1;) 83.0018 Tj -0 -303.788 Td +0 -303.7875 Td (3829 ip->flags = 0;) 91.7388 Tj -0 -313.281 Td -(3830 release\(&icache.lock\);) 126.687 Tj -0 -322.774 Td +0 -313.2809 Td +(3830 release\(&icache.lock\);) 126.6869 Tj +0 -322.7743 Td (3831 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (3832 return ip;) 74.2647 Tj 0 -341.761 Td (3833 }) 26.2111 Tj -0 -351.254 Td +0 -351.2543 Td (3834 ) 21.8426 Tj -0 -360.748 Td -(3835 // Increment reference count for ip.) 179.109 Tj -0 -370.241 Td -(3836 // Returns ip to enable ip = idup\(ip1\) idiom.) 218.426 Tj -0 -379.734 Td +0 -360.7477 Td +(3835 // Increment reference count for ip.) 179.1091 Tj +0 -370.2411 Td +(3836 // Returns ip to enable ip = idup\(ip1\) idiom.) 218.4257 Tj +0 -379.7344 Td (3837 struct inode*) 78.6333 Tj -0 -389.228 Td -(3838 idup\(struct inode *ip\)) 117.95 Tj -0 -398.721 Td +0 -389.2278 Td +(3838 idup\(struct inode *ip\)) 117.9499 Tj +0 -398.7211 Td (3839 {) 26.2111 Tj -0 -408.214 Td -(3840 acquire\(&icache.lock\);) 126.687 Tj -0 -417.708 Td +0 -408.2145 Td +(3840 acquire\(&icache.lock\);) 126.6869 Tj +0 -417.7079 Td (3841 ip->ref++;) 74.2647 Tj -0 -427.201 Td -(3842 release\(&icache.lock\);) 126.687 Tj -0 -436.695 Td +0 -427.2012 Td +(3842 release\(&icache.lock\);) 126.6869 Tj +0 -436.6946 Td (3843 return ip;) 74.2647 Tj -0 -446.188 Td +0 -446.1879 Td (3844 }) 26.2111 Tj -0 -455.681 Td +0 -455.6813 Td (3845 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3846 ) 21.8426 Tj 0 -474.668 Td (3847 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3848 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3849 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 38) 34.9481 Tj Q Q @@ -14112,111 +14108,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 5) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 5) 152.898 Tj 0 -28.4801 Td -(3850 // Lock the given inode.) 126.687 Tj +(3850 // Lock the given inode.) 126.6869 Tj 0 -37.9735 Td (3851 void) 39.3166 Tj 0 -47.4668 Td -(3852 ilock\(struct inode *ip\)) 122.318 Tj +(3852 ilock\(struct inode *ip\)) 122.3184 Tj 0 -56.9602 Td (3853 {) 26.2111 Tj 0 -66.4535 Td (3854 struct buf *bp;) 96.1073 Tj 0 -75.9469 Td -(3855 struct dinode *dip;) 113.581 Tj +(3855 struct dinode *dip;) 113.5814 Tj 0 -85.4403 Td (3856 ) 21.8426 Tj 0 -94.9336 Td (3857 if\(ip == 0 || ip->ref < 1\)) 144.161 Tj 0 -104.427 Td -(3858 panic\("ilock"\);) 104.844 Tj -0 -113.92 Td +(3858 panic\("ilock"\);) 104.8443 Tj +0 -113.9203 Td (3859 ) 21.8426 Tj -0 -123.414 Td -(3860 acquire\(&icache.lock\);) 126.687 Tj -0 -132.907 Td -(3861 while\(ip->flags & I_BUSY\)) 139.792 Tj -0 -142.4 Td +0 -123.4137 Td +(3860 acquire\(&icache.lock\);) 126.6869 Tj +0 -132.9071 Td +(3861 while\(ip->flags & I_BUSY\)) 139.7925 Tj +0 -142.4004 Td (3862 sleep\(ip, &icache.lock\);) 144.161 Tj -0 -151.894 Td -(3863 ip->flags |= I_BUSY;) 117.95 Tj -0 -161.387 Td -(3864 release\(&icache.lock\);) 126.687 Tj -0 -170.88 Td +0 -151.8938 Td +(3863 ip->flags |= I_BUSY;) 117.9499 Tj +0 -161.3871 Td +(3864 release\(&icache.lock\);) 126.6869 Tj +0 -170.8805 Td (3865 ) 21.8426 Tj -0 -180.374 Td -(3866 if\(!\(ip->flags & I_VALID\)\){) 148.529 Tj -0 -189.867 Td -(3867 bp = bread\(ip->dev, IBLOCK\(ip->inum\)\);) 205.32 Tj -0 -199.361 Td -(3868 dip = \(struct dinode*\)bp->data + ip->inum%IPB;) 240.268 Tj -0 -208.854 Td -(3869 ip->type = dip->type;) 131.055 Tj -0 -218.347 Td -(3870 ip->major = dip->major;) 139.792 Tj -0 -227.841 Td -(3871 ip->minor = dip->minor;) 139.792 Tj +0 -180.3739 Td +(3866 if\(!\(ip->flags & I_VALID\)\){) 148.5295 Tj +0 -189.8672 Td +(3867 bp = bread\(ip->dev, IBLOCK\(ip->inum\)\);) 205.3202 Tj +0 -199.3606 Td +(3868 dip = \(struct dinode*\)bp->data + ip->inum%IPB;) 240.2683 Tj +0 -208.8539 Td +(3869 ip->type = dip->type;) 131.0554 Tj +0 -218.3473 Td +(3870 ip->major = dip->major;) 139.7925 Tj +0 -227.8407 Td +(3871 ip->minor = dip->minor;) 139.7925 Tj 0 -237.334 Td -(3872 ip->nlink = dip->nlink;) 139.792 Tj -0 -246.827 Td -(3873 ip->size = dip->size;) 131.055 Tj -0 -256.321 Td -(3874 memmove\(ip->addrs, dip->addrs, sizeof\(ip->addrs\)\);) 257.742 Tj -0 -265.814 Td +(3872 ip->nlink = dip->nlink;) 139.7925 Tj +0 -246.8274 Td +(3873 ip->size = dip->size;) 131.0554 Tj +0 -256.3207 Td +(3874 memmove\(ip->addrs, dip->addrs, sizeof\(ip->addrs\)\);) 257.7424 Tj +0 -265.8141 Td (3875 brelse\(bp\);) 87.3703 Tj -0 -275.307 Td -(3876 ip->flags |= I_VALID;) 131.055 Tj -0 -284.801 Td -(3877 if\(ip->type == 0\)) 113.581 Tj -0 -294.294 Td +0 -275.3075 Td +(3876 ip->flags |= I_VALID;) 131.0554 Tj +0 -284.8008 Td +(3877 if\(ip->type == 0\)) 113.5814 Tj +0 -294.2942 Td (3878 panic\("ilock: no type"\);) 152.898 Tj -0 -303.788 Td +0 -303.7875 Td (3879 }) 34.9481 Tj -0 -313.281 Td +0 -313.2809 Td (3880 }) 26.2111 Tj -0 -322.774 Td +0 -322.7743 Td (3881 ) 21.8426 Tj -0 -332.268 Td -(3882 // Unlock the given inode.) 135.424 Tj +0 -332.2676 Td +(3882 // Unlock the given inode.) 135.4239 Tj 0 -341.761 Td (3883 void) 39.3166 Tj -0 -351.254 Td -(3884 iunlock\(struct inode *ip\)) 131.055 Tj -0 -360.748 Td +0 -351.2543 Td +(3884 iunlock\(struct inode *ip\)) 131.0554 Tj +0 -360.7477 Td (3885 {) 26.2111 Tj -0 -370.241 Td -(3886 if\(ip == 0 || !\(ip->flags & I_BUSY\) || ip->ref < 1\)) 253.374 Tj -0 -379.734 Td -(3887 panic\("iunlock"\);) 113.581 Tj -0 -389.228 Td +0 -370.2411 Td +(3886 if\(ip == 0 || !\(ip->flags & I_BUSY\) || ip->ref < 1\)) 253.3738 Tj +0 -379.7344 Td +(3887 panic\("iunlock"\);) 113.5814 Tj +0 -389.2278 Td (3888 ) 21.8426 Tj -0 -398.721 Td -(3889 acquire\(&icache.lock\);) 126.687 Tj -0 -408.214 Td -(3890 ip->flags &= ~I_BUSY;) 122.318 Tj -0 -417.708 Td +0 -398.7211 Td +(3889 acquire\(&icache.lock\);) 126.6869 Tj +0 -408.2145 Td +(3890 ip->flags &= ~I_BUSY;) 122.3184 Tj +0 -417.7079 Td (3891 wakeup\(ip\);) 78.6333 Tj -0 -427.201 Td -(3892 release\(&icache.lock\);) 126.687 Tj -0 -436.695 Td +0 -427.2012 Td +(3892 release\(&icache.lock\);) 126.6869 Tj +0 -436.6946 Td (3893 }) 26.2111 Tj -0 -446.188 Td +0 -446.1879 Td (3894 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3895 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3896 ) 21.8426 Tj 0 -474.668 Td (3897 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3898 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3899 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 38) 34.9481 Tj Q Q @@ -14245,8 +14241,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -14261,112 +14256,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 6) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 6) 152.898 Tj 0 -28.4801 Td -(3900 // Caller holds reference to unlocked ip. Drop reference.) 275.216 Tj +(3900 // Caller holds reference to unlocked ip. Drop reference.) 275.2164 Tj 0 -37.9735 Td (3901 void) 39.3166 Tj 0 -47.4668 Td -(3902 iput\(struct inode *ip\)) 117.95 Tj +(3902 iput\(struct inode *ip\)) 117.9499 Tj 0 -56.9602 Td (3903 {) 26.2111 Tj 0 -66.4535 Td -(3904 acquire\(&icache.lock\);) 126.687 Tj +(3904 acquire\(&icache.lock\);) 126.6869 Tj 0 -75.9469 Td (3905 if\(ip->ref == 1 && \(ip->flags & I_VALID\) && ip->nlink\ - == 0\){) 292.69 Tj + == 0\){) 292.6905 Tj 0 -85.4403 Td -(3906 // inode is no longer used: truncate and free inode.) 266.479 Tj +(3906 // inode is no longer used: truncate and free inode.) 266.4794 Tj 0 -94.9336 Td -(3907 if\(ip->flags & I_BUSY\)) 135.424 Tj +(3907 if\(ip->flags & I_BUSY\)) 135.4239 Tj 0 -104.427 Td -(3908 panic\("iput busy"\);) 131.055 Tj -0 -113.92 Td -(3909 ip->flags |= I_BUSY;) 126.687 Tj -0 -123.414 Td -(3910 release\(&icache.lock\);) 135.424 Tj -0 -132.907 Td +(3908 panic\("iput busy"\);) 131.0554 Tj +0 -113.9203 Td +(3909 ip->flags |= I_BUSY;) 126.6869 Tj +0 -123.4137 Td +(3910 release\(&icache.lock\);) 135.4239 Tj +0 -132.9071 Td (3911 itrunc\(ip\);) 87.3703 Tj -0 -142.4 Td +0 -142.4004 Td (3912 ip->type = 0;) 96.1073 Tj -0 -151.894 Td +0 -151.8938 Td (3913 iupdate\(ip\);) 91.7388 Tj -0 -161.387 Td -(3914 acquire\(&icache.lock\);) 135.424 Tj -0 -170.88 Td -(3915 ip->flags &= ~I_BUSY;) 131.055 Tj -0 -180.374 Td +0 -161.3871 Td +(3914 acquire\(&icache.lock\);) 135.4239 Tj +0 -170.8805 Td +(3915 ip->flags &= ~I_BUSY;) 131.0554 Tj +0 -180.3739 Td (3916 wakeup\(ip\);) 87.3703 Tj -0 -189.867 Td +0 -189.8672 Td (3917 }) 34.9481 Tj -0 -199.361 Td +0 -199.3606 Td (3918 ip->ref--;) 74.2647 Tj -0 -208.854 Td -(3919 release\(&icache.lock\);) 126.687 Tj -0 -218.347 Td +0 -208.8539 Td +(3919 release\(&icache.lock\);) 126.6869 Tj +0 -218.3473 Td (3920 }) 26.2111 Tj -0 -227.841 Td +0 -227.8407 Td (3921 ) 21.8426 Tj 0 -237.334 Td -(3922 // Common idiom: unlock, then put.) 170.372 Tj -0 -246.827 Td +(3922 // Common idiom: unlock, then put.) 170.3721 Tj +0 -246.8274 Td (3923 void) 39.3166 Tj -0 -256.321 Td +0 -256.3207 Td (3924 iunlockput\(struct inode *ip\)) 144.161 Tj -0 -265.814 Td +0 -265.8141 Td (3925 {) 26.2111 Tj -0 -275.307 Td +0 -275.3075 Td (3926 iunlock\(ip\);) 83.0018 Tj -0 -284.801 Td +0 -284.8008 Td (3927 iput\(ip\);) 69.8962 Tj -0 -294.294 Td +0 -294.2942 Td (3928 }) 26.2111 Tj -0 -303.788 Td +0 -303.7875 Td (3929 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (3930 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (3931 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (3932 ) 21.8426 Tj 0 -341.761 Td (3933 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (3934 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (3935 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (3936 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (3937 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (3938 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (3939 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (3940 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (3941 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (3942 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (3943 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3944 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3945 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3946 ) 21.8426 Tj 0 -474.668 Td (3947 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3948 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3949 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 39) 34.9481 Tj Q Q @@ -14381,12 +14376,12 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 7) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 7) 152.898 Tj 0 -28.4801 Td -(3950 // Allocate a new inode with the given type on device dev.) 275.216 Tj +(3950 // Allocate a new inode with the given type on device dev.) 275.2164 Tj 0 -37.9735 Td (3951 struct inode*) 78.6333 Tj 0 -47.4668 Td @@ -14398,95 +14393,95 @@ q 0 -75.9469 Td (3955 struct buf *bp;) 96.1073 Tj 0 -85.4403 Td -(3956 struct dinode *dip;) 113.581 Tj +(3956 struct dinode *dip;) 113.5814 Tj 0 -94.9336 Td -(3957 struct superblock sb;) 122.318 Tj +(3957 struct superblock sb;) 122.3184 Tj 0 -104.427 Td (3958 ) 21.8426 Tj -0 -113.92 Td -(3959 readsb\(dev, &sb\);) 104.844 Tj -0 -123.414 Td +0 -113.9203 Td +(3959 readsb\(dev, &sb\);) 104.8443 Tj +0 -123.4137 Td (3960 for\(inum = 1; inum < sb.ninodes; inum++\){ // loop ove\ -r inode blocks) 327.639 Tj -0 -132.907 Td -(3961 bp = bread\(dev, IBLOCK\(inum\)\);) 170.372 Tj -0 -142.4 Td -(3962 dip = \(struct dinode*\)bp->data + inum%IPB;) 222.794 Tj -0 -151.894 Td -(3963 if\(dip->type == 0\){ // a free inode) 196.583 Tj -0 -161.387 Td -(3964 memset\(dip, 0, sizeof\(*dip\)\);) 174.741 Tj -0 -170.88 Td -(3965 dip->type = type;) 122.318 Tj -0 -180.374 Td -(3966 bwrite\(bp\); // mark it allocated on the disk) 249.005 Tj -0 -189.867 Td +r inode blocks) 327.6386 Tj +0 -132.9071 Td +(3961 bp = bread\(dev, IBLOCK\(inum\)\);) 170.3721 Tj +0 -142.4004 Td +(3962 dip = \(struct dinode*\)bp->data + inum%IPB;) 222.7942 Tj +0 -151.8938 Td +(3963 if\(dip->type == 0\){ // a free inode) 196.5831 Tj +0 -161.3871 Td +(3964 memset\(dip, 0, sizeof\(*dip\)\);) 174.7406 Tj +0 -170.8805 Td +(3965 dip->type = type;) 122.3184 Tj +0 -180.3739 Td +(3966 bwrite\(bp\); // mark it allocated on the disk) 249.0053 Tj +0 -189.8672 Td (3967 brelse\(bp\);) 96.1073 Tj -0 -199.361 Td -(3968 return iget\(dev, inum\);) 148.529 Tj -0 -208.854 Td +0 -199.3606 Td +(3968 return iget\(dev, inum\);) 148.5295 Tj +0 -208.8539 Td (3969 }) 43.6851 Tj -0 -218.347 Td +0 -218.3473 Td (3970 brelse\(bp\);) 87.3703 Tj -0 -227.841 Td +0 -227.8407 Td (3971 }) 34.9481 Tj 0 -237.334 Td -(3972 panic\("ialloc: no inodes"\);) 148.529 Tj -0 -246.827 Td +(3972 panic\("ialloc: no inodes"\);) 148.5295 Tj +0 -246.8274 Td (3973 }) 26.2111 Tj -0 -256.321 Td +0 -256.3207 Td (3974 ) 21.8426 Tj -0 -265.814 Td -(3975 // Copy inode, which has changed, from memory to disk.) 257.742 Tj -0 -275.307 Td +0 -265.8141 Td +(3975 // Copy inode, which has changed, from memory to disk.) 257.7424 Tj +0 -275.3075 Td (3976 void) 39.3166 Tj -0 -284.801 Td -(3977 iupdate\(struct inode *ip\)) 131.055 Tj -0 -294.294 Td +0 -284.8008 Td +(3977 iupdate\(struct inode *ip\)) 131.0554 Tj +0 -294.2942 Td (3978 {) 26.2111 Tj -0 -303.788 Td +0 -303.7875 Td (3979 struct buf *bp;) 96.1073 Tj -0 -313.281 Td -(3980 struct dinode *dip;) 113.581 Tj -0 -322.774 Td +0 -313.2809 Td +(3980 struct dinode *dip;) 113.5814 Tj +0 -322.7743 Td (3981 ) 21.8426 Tj -0 -332.268 Td -(3982 bp = bread\(ip->dev, IBLOCK\(ip->inum\)\);) 196.583 Tj +0 -332.2676 Td +(3982 bp = bread\(ip->dev, IBLOCK\(ip->inum\)\);) 196.5831 Tj 0 -341.761 Td -(3983 dip = \(struct dinode*\)bp->data + ip->inum%IPB;) 231.531 Tj -0 -351.254 Td -(3984 dip->type = ip->type;) 122.318 Tj -0 -360.748 Td -(3985 dip->major = ip->major;) 131.055 Tj -0 -370.241 Td -(3986 dip->minor = ip->minor;) 131.055 Tj -0 -379.734 Td -(3987 dip->nlink = ip->nlink;) 131.055 Tj -0 -389.228 Td -(3988 dip->size = ip->size;) 122.318 Tj -0 -398.721 Td -(3989 memmove\(dip->addrs, ip->addrs, sizeof\(ip->addrs\)\);) 249.005 Tj -0 -408.214 Td +(3983 dip = \(struct dinode*\)bp->data + ip->inum%IPB;) 231.5313 Tj +0 -351.2543 Td +(3984 dip->type = ip->type;) 122.3184 Tj +0 -360.7477 Td +(3985 dip->major = ip->major;) 131.0554 Tj +0 -370.2411 Td +(3986 dip->minor = ip->minor;) 131.0554 Tj +0 -379.7344 Td +(3987 dip->nlink = ip->nlink;) 131.0554 Tj +0 -389.2278 Td +(3988 dip->size = ip->size;) 122.3184 Tj +0 -398.7211 Td +(3989 memmove\(dip->addrs, ip->addrs, sizeof\(ip->addrs\)\);) 249.0053 Tj +0 -408.2145 Td (3990 bwrite\(bp\);) 78.6333 Tj -0 -417.708 Td +0 -417.7079 Td (3991 brelse\(bp\);) 78.6333 Tj -0 -427.201 Td +0 -427.2012 Td (3992 }) 26.2111 Tj -0 -436.695 Td +0 -436.6946 Td (3993 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (3994 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (3995 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (3996 ) 21.8426 Tj 0 -474.668 Td (3997 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (3998 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (3999 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 39) 34.9481 Tj Q Q @@ -14515,8 +14510,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -14531,116 +14525,116 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 8) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 8) 152.898 Tj 0 -28.4801 Td (4000 // Inode contents) 96.1073 Tj 0 -37.9735 Td (4001 //) 30.5796 Tj 0 -47.4668 Td (4002 // The contents \(data\) associated with each inode is sto\ -red) 279.585 Tj +red) 279.5849 Tj 0 -56.9602 Td (4003 // in a sequence of blocks on the disk. The first NDIRECT\ blocks) 305.796 Tj 0 -66.4535 Td (4004 // are listed in ip->addrs[]. The next NINDIRECT blocks a\ -re) 283.953 Tj +re) 283.9534 Tj 0 -75.9469 Td -(4005 // listed in the block ip->addrs[INDIRECT].) 209.689 Tj +(4005 // listed in the block ip->addrs[INDIRECT].) 209.6887 Tj 0 -85.4403 Td (4006 ) 21.8426 Tj 0 -94.9336 Td (4007 // Return the disk block address of the nth block in inode\ - ip.) 292.69 Tj + ip.) 292.6905 Tj 0 -104.427 Td (4008 // If there is no such block, alloc controls whether one i\ -s allocated.) 327.639 Tj -0 -113.92 Td +s allocated.) 327.6386 Tj +0 -113.9203 Td (4009 static uint) 69.8962 Tj -0 -123.414 Td -(4010 bmap\(struct inode *ip, uint bn, int alloc\)) 205.32 Tj -0 -132.907 Td +0 -123.4137 Td +(4010 bmap\(struct inode *ip, uint bn, int alloc\)) 205.3202 Tj +0 -132.9071 Td (4011 {) 26.2111 Tj -0 -142.4 Td +0 -142.4004 Td (4012 uint addr, *a;) 91.7388 Tj -0 -151.894 Td +0 -151.8938 Td (4013 struct buf *bp;) 96.1073 Tj -0 -161.387 Td +0 -161.3871 Td (4014 ) 21.8426 Tj -0 -170.88 Td -(4015 if\(bn < NDIRECT\){) 104.844 Tj -0 -180.374 Td -(4016 if\(\(addr = ip->addrs[bn]\) == 0\){) 179.109 Tj -0 -189.867 Td +0 -170.8805 Td +(4015 if\(bn < NDIRECT\){) 104.8443 Tj +0 -180.3739 Td +(4016 if\(\(addr = ip->addrs[bn]\) == 0\){) 179.1091 Tj +0 -189.8672 Td (4017 if\(!alloc\)) 91.7388 Tj -0 -199.361 Td -(4018 return -1;) 100.476 Tj -0 -208.854 Td -(4019 ip->addrs[bn] = addr = balloc\(ip->dev\);) 218.426 Tj -0 -218.347 Td +0 -199.3606 Td +(4018 return -1;) 100.4758 Tj +0 -208.8539 Td +(4019 ip->addrs[bn] = addr = balloc\(ip->dev\);) 218.4257 Tj +0 -218.3473 Td (4020 }) 43.6851 Tj -0 -227.841 Td +0 -227.8407 Td (4021 return addr;) 91.7388 Tj 0 -237.334 Td (4022 }) 34.9481 Tj -0 -246.827 Td +0 -246.8274 Td (4023 bn -= NDIRECT;) 91.7388 Tj -0 -256.321 Td +0 -256.3207 Td (4024 ) 21.8426 Tj -0 -265.814 Td -(4025 if\(bn < NINDIRECT\){) 113.581 Tj -0 -275.307 Td -(4026 // Load indirect block, allocating if necessary.) 249.005 Tj -0 -284.801 Td -(4027 if\(\(addr = ip->addrs[INDIRECT]\) == 0\){) 205.32 Tj -0 -294.294 Td +0 -265.8141 Td +(4025 if\(bn < NINDIRECT\){) 113.5814 Tj +0 -275.3075 Td +(4026 // Load indirect block, allocating if necessary.) 249.0053 Tj +0 -284.8008 Td +(4027 if\(\(addr = ip->addrs[INDIRECT]\) == 0\){) 205.3202 Tj +0 -294.2942 Td (4028 if\(!alloc\)) 91.7388 Tj -0 -303.788 Td -(4029 return -1;) 100.476 Tj -0 -313.281 Td -(4030 ip->addrs[INDIRECT] = addr = balloc\(ip->dev\);) 244.637 Tj -0 -322.774 Td +0 -303.7875 Td +(4029 return -1;) 100.4758 Tj +0 -313.2809 Td +(4030 ip->addrs[INDIRECT] = addr = balloc\(ip->dev\);) 244.6368 Tj +0 -322.7743 Td (4031 }) 43.6851 Tj -0 -332.268 Td +0 -332.2676 Td (4032 bp = bread\(ip->dev, addr\);) 152.898 Tj 0 -341.761 Td -(4033 a = \(uint*\)bp->data;) 126.687 Tj -0 -351.254 Td +(4033 a = \(uint*\)bp->data;) 126.6869 Tj +0 -351.2543 Td (4034 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (4035 if\(\(addr = a[bn]\) == 0\){) 144.161 Tj -0 -370.241 Td +0 -370.2411 Td (4036 if\(!alloc\){) 96.1073 Tj -0 -379.734 Td -(4037 brelse\(bp\);) 104.844 Tj -0 -389.228 Td -(4038 return -1;) 100.476 Tj -0 -398.721 Td +0 -379.7344 Td +(4037 brelse\(bp\);) 104.8443 Tj +0 -389.2278 Td +(4038 return -1;) 100.4758 Tj +0 -398.7211 Td (4039 }) 52.4222 Tj -0 -408.214 Td -(4040 a[bn] = addr = balloc\(ip->dev\);) 183.478 Tj -0 -417.708 Td +0 -408.2145 Td +(4040 a[bn] = addr = balloc\(ip->dev\);) 183.4776 Tj +0 -417.7079 Td (4041 bwrite\(bp\);) 96.1073 Tj -0 -427.201 Td +0 -427.2012 Td (4042 }) 43.6851 Tj -0 -436.695 Td +0 -436.6946 Td (4043 brelse\(bp\);) 87.3703 Tj -0 -446.188 Td +0 -446.1879 Td (4044 return addr;) 91.7388 Tj -0 -455.681 Td +0 -455.6813 Td (4045 }) 34.9481 Tj -0 -465.175 Td +0 -465.1747 Td (4046 ) 21.8426 Tj 0 -474.668 Td (4047 panic\("bmap: out of range"\);) 152.898 Tj -0 -484.161 Td +0 -484.1614 Td (4048 }) 26.2111 Tj -0 -493.655 Td +0 -493.6547 Td (4049 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 40) 34.9481 Tj Q Q @@ -14655,16 +14649,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 9) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 9) 152.898 Tj 0 -28.4801 Td -(4050 // Truncate inode \(discard contents\).) 183.478 Tj +(4050 // Truncate inode \(discard contents\).) 183.4776 Tj 0 -37.9735 Td (4051 static void) 69.8962 Tj 0 -47.4668 Td -(4052 itrunc\(struct inode *ip\)) 126.687 Tj +(4052 itrunc\(struct inode *ip\)) 126.6869 Tj 0 -56.9602 Td (4053 {) 26.2111 Tj 0 -66.4535 Td @@ -14676,90 +14670,90 @@ q 0 -94.9336 Td (4057 ) 21.8426 Tj 0 -104.427 Td -(4058 for\(i = 0; i < NDIRECT; i++\){) 157.267 Tj -0 -113.92 Td -(4059 if\(ip->addrs[i]\){) 113.581 Tj -0 -123.414 Td -(4060 bfree\(ip->dev, ip->addrs[i]\);) 174.741 Tj -0 -132.907 Td -(4061 ip->addrs[i] = 0;) 122.318 Tj -0 -142.4 Td +(4058 for\(i = 0; i < NDIRECT; i++\){) 157.2665 Tj +0 -113.9203 Td +(4059 if\(ip->addrs[i]\){) 113.5814 Tj +0 -123.4137 Td +(4060 bfree\(ip->dev, ip->addrs[i]\);) 174.7406 Tj +0 -132.9071 Td +(4061 ip->addrs[i] = 0;) 122.3184 Tj +0 -142.4004 Td (4062 }) 43.6851 Tj -0 -151.894 Td +0 -151.8938 Td (4063 }) 34.9481 Tj -0 -161.387 Td +0 -161.3871 Td (4064 ) 21.8426 Tj -0 -170.88 Td -(4065 if\(ip->addrs[INDIRECT]\){) 135.424 Tj -0 -180.374 Td -(4066 bp = bread\(ip->dev, ip->addrs[INDIRECT]\);) 218.426 Tj -0 -189.867 Td -(4067 a = \(uint*\)bp->data;) 126.687 Tj -0 -199.361 Td -(4068 for\(j = 0; j < NINDIRECT; j++\){) 174.741 Tj -0 -208.854 Td +0 -170.8805 Td +(4065 if\(ip->addrs[INDIRECT]\){) 135.4239 Tj +0 -180.3739 Td +(4066 bp = bread\(ip->dev, ip->addrs[INDIRECT]\);) 218.4257 Tj +0 -189.8672 Td +(4067 a = \(uint*\)bp->data;) 126.6869 Tj +0 -199.3606 Td +(4068 for\(j = 0; j < NINDIRECT; j++\){) 174.7406 Tj +0 -208.8539 Td (4069 if\(a[j]\)) 83.0018 Tj -0 -218.347 Td -(4070 bfree\(ip->dev, a[j]\);) 148.529 Tj -0 -227.841 Td +0 -218.3473 Td +(4070 bfree\(ip->dev, a[j]\);) 148.5295 Tj +0 -227.8407 Td (4071 }) 43.6851 Tj 0 -237.334 Td (4072 brelse\(bp\);) 87.3703 Tj -0 -246.827 Td +0 -246.8274 Td (4073 ip->addrs[INDIRECT] = 0;) 144.161 Tj -0 -256.321 Td +0 -256.3207 Td (4074 }) 34.9481 Tj -0 -265.814 Td +0 -265.8141 Td (4075 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (4076 ip->size = 0;) 87.3703 Tj -0 -284.801 Td +0 -284.8008 Td (4077 iupdate\(ip\);) 83.0018 Tj -0 -294.294 Td +0 -294.2942 Td (4078 }) 26.2111 Tj -0 -303.788 Td +0 -303.7875 Td (4079 ) 21.8426 Tj -0 -313.281 Td -(4080 // Copy stat information from inode.) 179.109 Tj -0 -322.774 Td +0 -313.2809 Td +(4080 // Copy stat information from inode.) 179.1091 Tj +0 -322.7743 Td (4081 void) 39.3166 Tj -0 -332.268 Td -(4082 stati\(struct inode *ip, struct stat *st\)) 196.583 Tj +0 -332.2676 Td +(4082 stati\(struct inode *ip, struct stat *st\)) 196.5831 Tj 0 -341.761 Td (4083 {) 26.2111 Tj -0 -351.254 Td -(4084 st->dev = ip->dev;) 109.213 Tj -0 -360.748 Td -(4085 st->ino = ip->inum;) 113.581 Tj -0 -370.241 Td -(4086 st->type = ip->type;) 117.95 Tj -0 -379.734 Td -(4087 st->nlink = ip->nlink;) 126.687 Tj -0 -389.228 Td -(4088 st->size = ip->size;) 117.95 Tj -0 -398.721 Td +0 -351.2543 Td +(4084 st->dev = ip->dev;) 109.2129 Tj +0 -360.7477 Td +(4085 st->ino = ip->inum;) 113.5814 Tj +0 -370.2411 Td +(4086 st->type = ip->type;) 117.9499 Tj +0 -379.7344 Td +(4087 st->nlink = ip->nlink;) 126.6869 Tj +0 -389.2278 Td +(4088 st->size = ip->size;) 117.9499 Tj +0 -398.7211 Td (4089 }) 26.2111 Tj -0 -408.214 Td +0 -408.2145 Td (4090 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4091 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4092 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4093 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4094 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4095 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4096 ) 21.8426 Tj 0 -474.668 Td (4097 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4098 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4099 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 40) 34.9481 Tj Q Q @@ -14788,8 +14782,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -14804,16 +14797,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 10) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 10) 157.2665 Tj 0 -28.4801 Td -(4100 // Read data from inode.) 126.687 Tj +(4100 // Read data from inode.) 126.6869 Tj 0 -37.9735 Td (4101 int) 34.9481 Tj 0 -47.4668 Td -(4102 readi\(struct inode *ip, char *dst, uint off, uint n\)) 249.005 Tj +(4102 readi\(struct inode *ip, char *dst, uint off, uint n\)) 249.0053 Tj 0 -56.9602 Td (4103 {) 26.2111 Tj 0 -66.4535 Td @@ -14823,93 +14816,93 @@ q 0 -85.4403 Td (4106 ) 21.8426 Tj 0 -94.9336 Td -(4107 if\(ip->type == T_DEV\){) 126.687 Tj +(4107 if\(ip->type == T_DEV\){) 126.6869 Tj 0 -104.427 Td (4108 if\(ip->major < 0 || ip->major >= NDEV || !devsw[ip->m\ -ajor].read\)) 318.902 Tj -0 -113.92 Td +ajor].read\)) 318.9016 Tj +0 -113.9203 Td (4109 return -1;) 91.7388 Tj -0 -123.414 Td -(4110 return devsw[ip->major].read\(ip, dst, n\);) 218.426 Tj -0 -132.907 Td +0 -123.4137 Td +(4110 return devsw[ip->major].read\(ip, dst, n\);) 218.4257 Tj +0 -132.9071 Td (4111 }) 34.9481 Tj -0 -142.4 Td +0 -142.4004 Td (4112 ) 21.8426 Tj -0 -151.894 Td -(4113 if\(off > ip->size || off + n < off\)) 183.478 Tj -0 -161.387 Td +0 -151.8938 Td +(4113 if\(off > ip->size || off + n < off\)) 183.4776 Tj +0 -161.3871 Td (4114 return -1;) 83.0018 Tj -0 -170.88 Td -(4115 if\(off + n > ip->size\)) 126.687 Tj -0 -180.374 Td -(4116 n = ip->size - off;) 122.318 Tj -0 -189.867 Td +0 -170.8805 Td +(4115 if\(off + n > ip->size\)) 126.6869 Tj +0 -180.3739 Td +(4116 n = ip->size - off;) 122.3184 Tj +0 -189.8672 Td (4117 ) 21.8426 Tj -0 -199.361 Td -(4118 for\(tot=0; totdev, bmap\(ip, off/BSIZE, 0\)\);) 231.531 Tj -0 -218.347 Td -(4120 m = min\(n - tot, BSIZE - off%BSIZE\);) 196.583 Tj -0 -227.841 Td -(4121 memmove\(dst, bp->data + off%BSIZE, m\);) 205.32 Tj +0 -199.3606 Td +(4118 for\(tot=0; totdev, bmap\(ip, off/BSIZE, 0\)\);) 231.5313 Tj +0 -218.3473 Td +(4120 m = min\(n - tot, BSIZE - off%BSIZE\);) 196.5831 Tj +0 -227.8407 Td +(4121 memmove\(dst, bp->data + off%BSIZE, m\);) 205.3202 Tj 0 -237.334 Td (4122 brelse\(bp\);) 87.3703 Tj -0 -246.827 Td +0 -246.8274 Td (4123 }) 34.9481 Tj -0 -256.321 Td +0 -256.3207 Td (4124 return n;) 69.8962 Tj -0 -265.814 Td +0 -265.8141 Td (4125 }) 26.2111 Tj -0 -275.307 Td +0 -275.3075 Td (4126 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (4127 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (4128 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (4129 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (4130 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (4131 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (4132 ) 21.8426 Tj 0 -341.761 Td (4133 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (4134 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (4135 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (4136 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (4137 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (4138 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (4139 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (4140 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4141 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4142 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4143 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4144 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4145 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4146 ) 21.8426 Tj 0 -474.668 Td (4147 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4148 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4149 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 41) 34.9481 Tj Q Q @@ -14924,16 +14917,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 11) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 11) 157.2665 Tj 0 -28.4801 Td -(4150 // Write data to inode.) 122.318 Tj +(4150 // Write data to inode.) 122.3184 Tj 0 -37.9735 Td (4151 int) 34.9481 Tj 0 -47.4668 Td -(4152 writei\(struct inode *ip, char *src, uint off, uint n\)) 253.374 Tj +(4152 writei\(struct inode *ip, char *src, uint off, uint n\)) 253.3738 Tj 0 -56.9602 Td (4153 {) 26.2111 Tj 0 -66.4535 Td @@ -14943,93 +14936,93 @@ q 0 -85.4403 Td (4156 ) 21.8426 Tj 0 -94.9336 Td -(4157 if\(ip->type == T_DEV\){) 126.687 Tj +(4157 if\(ip->type == T_DEV\){) 126.6869 Tj 0 -104.427 Td (4158 if\(ip->major < 0 || ip->major >= NDEV || !devsw[ip->m\ -ajor].write\)) 323.27 Tj -0 -113.92 Td +ajor].write\)) 323.2701 Tj +0 -113.9203 Td (4159 return -1;) 91.7388 Tj -0 -123.414 Td -(4160 return devsw[ip->major].write\(ip, src, n\);) 222.794 Tj -0 -132.907 Td +0 -123.4137 Td +(4160 return devsw[ip->major].write\(ip, src, n\);) 222.7942 Tj +0 -132.9071 Td (4161 }) 34.9481 Tj -0 -142.4 Td +0 -142.4004 Td (4162 ) 21.8426 Tj -0 -151.894 Td -(4163 if\(off + n < off\)) 104.844 Tj -0 -161.387 Td +0 -151.8938 Td +(4163 if\(off + n < off\)) 104.8443 Tj +0 -161.3871 Td (4164 return -1;) 83.0018 Tj -0 -170.88 Td -(4165 if\(off + n > MAXFILE*BSIZE\)) 148.529 Tj -0 -180.374 Td +0 -170.8805 Td +(4165 if\(off + n > MAXFILE*BSIZE\)) 148.5295 Tj +0 -180.3739 Td (4166 n = MAXFILE*BSIZE - off;) 144.161 Tj -0 -189.867 Td +0 -189.8672 Td (4167 ) 21.8426 Tj -0 -199.361 Td -(4168 for\(tot=0; totdev, bmap\(ip, off/BSIZE, 1\)\);) 231.531 Tj -0 -218.347 Td -(4170 m = min\(n - tot, BSIZE - off%BSIZE\);) 196.583 Tj -0 -227.841 Td -(4171 memmove\(bp->data + off%BSIZE, src, m\);) 205.32 Tj +0 -199.3606 Td +(4168 for\(tot=0; totdev, bmap\(ip, off/BSIZE, 1\)\);) 231.5313 Tj +0 -218.3473 Td +(4170 m = min\(n - tot, BSIZE - off%BSIZE\);) 196.5831 Tj +0 -227.8407 Td +(4171 memmove\(bp->data + off%BSIZE, src, m\);) 205.3202 Tj 0 -237.334 Td (4172 bwrite\(bp\);) 87.3703 Tj -0 -246.827 Td +0 -246.8274 Td (4173 brelse\(bp\);) 87.3703 Tj -0 -256.321 Td +0 -256.3207 Td (4174 }) 34.9481 Tj -0 -265.814 Td +0 -265.8141 Td (4175 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (4176 if\(n > 0 && off > ip->size\){) 152.898 Tj -0 -284.801 Td -(4177 ip->size = off;) 104.844 Tj -0 -294.294 Td +0 -284.8008 Td +(4177 ip->size = off;) 104.8443 Tj +0 -294.2942 Td (4178 iupdate\(ip\);) 91.7388 Tj -0 -303.788 Td +0 -303.7875 Td (4179 }) 34.9481 Tj -0 -313.281 Td +0 -313.2809 Td (4180 return n;) 69.8962 Tj -0 -322.774 Td +0 -322.7743 Td (4181 }) 26.2111 Tj -0 -332.268 Td +0 -332.2676 Td (4182 ) 21.8426 Tj 0 -341.761 Td (4183 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (4184 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (4185 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (4186 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (4187 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (4188 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (4189 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (4190 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4191 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4192 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4193 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4194 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4195 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4196 ) 21.8426 Tj 0 -474.668 Td (4197 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4198 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4199 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 41) 34.9481 Tj Q Q @@ -15058,8 +15051,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -15074,10 +15066,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 12) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 12) 157.2665 Tj 0 -28.4801 Td (4200 // Directories) 83.0018 Tj 0 -37.9735 Td @@ -15085,100 +15077,100 @@ q 0 -47.4668 Td (4202 int) 34.9481 Tj 0 -56.9602 Td -(4203 namecmp\(const char *s, const char *t\)) 183.478 Tj +(4203 namecmp\(const char *s, const char *t\)) 183.4776 Tj 0 -66.4535 Td (4204 {) 26.2111 Tj 0 -75.9469 Td -(4205 return strncmp\(s, t, DIRSIZ\);) 157.267 Tj +(4205 return strncmp\(s, t, DIRSIZ\);) 157.2665 Tj 0 -85.4403 Td (4206 }) 26.2111 Tj 0 -94.9336 Td (4207 ) 21.8426 Tj 0 -104.427 Td -(4208 // Look for a directory entry in a directory.) 218.426 Tj -0 -113.92 Td -(4209 // If found, set *poff to byte offset of entry.) 227.163 Tj -0 -123.414 Td -(4210 // Caller must have already locked dp.) 187.846 Tj -0 -132.907 Td +(4208 // Look for a directory entry in a directory.) 218.4257 Tj +0 -113.9203 Td +(4209 // If found, set *poff to byte offset of entry.) 227.1628 Tj +0 -123.4137 Td +(4210 // Caller must have already locked dp.) 187.8461 Tj +0 -132.9071 Td (4211 struct inode*) 78.6333 Tj -0 -142.4 Td -(4212 dirlookup\(struct inode *dp, char *name, uint *poff\)) 244.637 Tj -0 -151.894 Td +0 -142.4004 Td +(4212 dirlookup\(struct inode *dp, char *name, uint *poff\)) 244.6368 Tj +0 -151.8938 Td (4213 {) 26.2111 Tj -0 -161.387 Td +0 -161.3871 Td (4214 uint off, inum;) 96.1073 Tj -0 -170.88 Td +0 -170.8805 Td (4215 struct buf *bp;) 96.1073 Tj -0 -180.374 Td -(4216 struct dirent *de;) 109.213 Tj -0 -189.867 Td +0 -180.3739 Td +(4216 struct dirent *de;) 109.2129 Tj +0 -189.8672 Td (4217 ) 21.8426 Tj -0 -199.361 Td -(4218 if\(dp->type != T_DIR\)) 122.318 Tj -0 -208.854 Td -(4219 panic\("dirlookup not DIR"\);) 157.267 Tj -0 -218.347 Td +0 -199.3606 Td +(4218 if\(dp->type != T_DIR\)) 122.3184 Tj +0 -208.8539 Td +(4219 panic\("dirlookup not DIR"\);) 157.2665 Tj +0 -218.3473 Td (4220 ) 21.8426 Tj -0 -227.841 Td -(4221 for\(off = 0; off < dp->size; off += BSIZE\){) 218.426 Tj +0 -227.8407 Td +(4221 for\(off = 0; off < dp->size; off += BSIZE\){) 218.4257 Tj 0 -237.334 Td -(4222 bp = bread\(dp->dev, bmap\(dp, off / BSIZE, 0\)\);) 240.268 Tj -0 -246.827 Td -(4223 for\(de = \(struct dirent*\)bp->data;) 187.846 Tj -0 -256.321 Td -(4224 de < \(struct dirent*\)\(bp->data + BSIZE\);) 231.531 Tj -0 -265.814 Td +(4222 bp = bread\(dp->dev, bmap\(dp, off / BSIZE, 0\)\);) 240.2683 Tj +0 -246.8274 Td +(4223 for\(de = \(struct dirent*\)bp->data;) 187.8461 Tj +0 -256.3207 Td +(4224 de < \(struct dirent*\)\(bp->data + BSIZE\);) 231.5313 Tj +0 -265.8141 Td (4225 de++\){) 83.0018 Tj -0 -275.307 Td -(4226 if\(de->inum == 0\)) 122.318 Tj -0 -284.801 Td +0 -275.3075 Td +(4226 if\(de->inum == 0\)) 122.3184 Tj +0 -284.8008 Td (4227 continue;) 96.1073 Tj -0 -294.294 Td -(4228 if\(namecmp\(name, de->name\) == 0\){) 192.215 Tj -0 -303.788 Td -(4229 // entry matches path element) 183.478 Tj -0 -313.281 Td +0 -294.2942 Td +(4228 if\(namecmp\(name, de->name\) == 0\){) 192.2146 Tj +0 -303.7875 Td +(4229 // entry matches path element) 183.4776 Tj +0 -313.2809 Td (4230 if\(poff\)) 91.7388 Tj -0 -322.774 Td -(4231 *poff = off + \(uchar*\)de - bp->data;) 222.794 Tj -0 -332.268 Td -(4232 inum = de->inum;) 126.687 Tj +0 -322.7743 Td +(4231 *poff = off + \(uchar*\)de - bp->data;) 222.7942 Tj +0 -332.2676 Td +(4232 inum = de->inum;) 126.6869 Tj 0 -341.761 Td -(4233 brelse\(bp\);) 104.844 Tj -0 -351.254 Td -(4234 return iget\(dp->dev, inum\);) 174.741 Tj -0 -360.748 Td +(4233 brelse\(bp\);) 104.8443 Tj +0 -351.2543 Td +(4234 return iget\(dp->dev, inum\);) 174.7406 Tj +0 -360.7477 Td (4235 }) 52.4222 Tj -0 -370.241 Td +0 -370.2411 Td (4236 }) 43.6851 Tj -0 -379.734 Td +0 -379.7344 Td (4237 brelse\(bp\);) 87.3703 Tj -0 -389.228 Td +0 -389.2278 Td (4238 }) 34.9481 Tj -0 -398.721 Td +0 -398.7211 Td (4239 return 0;) 69.8962 Tj -0 -408.214 Td +0 -408.2145 Td (4240 }) 26.2111 Tj -0 -417.708 Td +0 -417.7079 Td (4241 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4242 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4243 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4244 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4245 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4246 ) 21.8426 Tj 0 -474.668 Td (4247 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4248 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4249 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 42) 34.9481 Tj Q Q @@ -15193,114 +15185,114 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 13) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 13) 157.2665 Tj 0 -28.4801 Td (4250 // Write a new directory entry \(name, ino\) into the dire\ ctory dp.) 305.796 Tj 0 -37.9735 Td (4251 int) 34.9481 Tj 0 -47.4668 Td -(4252 dirlink\(struct inode *dp, char *name, uint ino\)) 227.163 Tj +(4252 dirlink\(struct inode *dp, char *name, uint ino\)) 227.1628 Tj 0 -56.9602 Td (4253 {) 26.2111 Tj 0 -66.4535 Td (4254 int off;) 65.5277 Tj 0 -75.9469 Td -(4255 struct dirent de;) 104.844 Tj +(4255 struct dirent de;) 104.8443 Tj 0 -85.4403 Td -(4256 struct inode *ip;) 104.844 Tj +(4256 struct inode *ip;) 104.8443 Tj 0 -94.9336 Td (4257 ) 21.8426 Tj 0 -104.427 Td -(4258 // Check that name is not present.) 179.109 Tj -0 -113.92 Td -(4259 if\(\(ip = dirlookup\(dp, name, 0\)\) != 0\){) 200.952 Tj -0 -123.414 Td +(4258 // Check that name is not present.) 179.1091 Tj +0 -113.9203 Td +(4259 if\(\(ip = dirlookup\(dp, name, 0\)\) != 0\){) 200.9517 Tj +0 -123.4137 Td (4260 iput\(ip\);) 78.6333 Tj -0 -132.907 Td +0 -132.9071 Td (4261 return -1;) 83.0018 Tj -0 -142.4 Td +0 -142.4004 Td (4262 }) 34.9481 Tj -0 -151.894 Td +0 -151.8938 Td (4263 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (4264 // Look for an empty dirent.) 152.898 Tj -0 -170.88 Td -(4265 for\(off = 0; off < dp->size; off += sizeof\(de\)\){) 240.268 Tj -0 -180.374 Td +0 -170.8805 Td +(4265 for\(off = 0; off < dp->size; off += sizeof\(de\)\){) 240.2683 Tj +0 -180.3739 Td (4266 if\(readi\(dp, \(char*\)&de, off, sizeof\(de\)\) != si\ -zeof\(de\)\)) 283.953 Tj -0 -189.867 Td +zeof\(de\)\)) 283.9534 Tj +0 -189.8672 Td (4267 panic\("dirlink read"\);) 144.161 Tj -0 -199.361 Td -(4268 if\(de.inum == 0\)) 109.213 Tj -0 -208.854 Td +0 -199.3606 Td +(4268 if\(de.inum == 0\)) 109.2129 Tj +0 -208.8539 Td (4269 break;) 74.2647 Tj -0 -218.347 Td +0 -218.3473 Td (4270 }) 34.9481 Tj -0 -227.841 Td +0 -227.8407 Td (4271 ) 21.8426 Tj 0 -237.334 Td -(4272 strncpy\(de.name, name, DIRSIZ\);) 166.004 Tj -0 -246.827 Td +(4272 strncpy\(de.name, name, DIRSIZ\);) 166.0035 Tj +0 -246.8274 Td (4273 de.inum = ino;) 91.7388 Tj -0 -256.321 Td +0 -256.3207 Td (4274 if\(writei\(dp, \(char*\)&de, off, sizeof\(de\)\) != siz\ -eof\(de\)\)) 279.585 Tj -0 -265.814 Td -(4275 panic\("dirlink"\);) 113.581 Tj -0 -275.307 Td +eof\(de\)\)) 279.5849 Tj +0 -265.8141 Td +(4275 panic\("dirlink"\);) 113.5814 Tj +0 -275.3075 Td (4276 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (4277 return 0;) 69.8962 Tj -0 -294.294 Td +0 -294.2942 Td (4278 }) 26.2111 Tj -0 -303.788 Td +0 -303.7875 Td (4279 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (4280 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (4281 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (4282 ) 21.8426 Tj 0 -341.761 Td (4283 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (4284 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (4285 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (4286 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (4287 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (4288 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (4289 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (4290 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4291 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4292 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4293 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4294 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4295 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4296 ) 21.8426 Tj 0 -474.668 Td (4297 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4298 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4299 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 42) 34.9481 Tj Q Q @@ -15329,8 +15321,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -15345,115 +15336,115 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 14) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 14) 157.2665 Tj 0 -28.4801 Td (4300 // Paths) 56.7907 Tj 0 -37.9735 Td (4301 ) 21.8426 Tj 0 -47.4668 Td -(4302 // Copy the next path element from path into name.) 240.268 Tj +(4302 // Copy the next path element from path into name.) 240.2683 Tj 0 -56.9602 Td (4303 // Return a pointer to the element following the copied on\ -e.) 283.953 Tj +e.) 283.9534 Tj 0 -66.4535 Td -(4304 // The returned path has no leading slashes,) 214.057 Tj +(4304 // The returned path has no leading slashes,) 214.0572 Tj 0 -75.9469 Td (4305 // so the caller can check *path=='\\0' to see if the name\ - is the last one.) 345.113 Tj + is the last one.) 345.1126 Tj 0 -85.4403 Td -(4306 // If no name to remove, return 0.) 170.372 Tj +(4306 // If no name to remove, return 0.) 170.3721 Tj 0 -94.9336 Td (4307 //) 30.5796 Tj 0 -104.427 Td (4308 // Examples:) 74.2647 Tj -0 -113.92 Td +0 -113.9203 Td (4309 // skipelem\("a/bb/c", name\) = "bb/c", setting name = "\ -a") 275.216 Tj -0 -123.414 Td +a") 275.2164 Tj +0 -123.4137 Td (4310 // skipelem\("///a//bb", name\) = "bb", setting name = "\ -a") 275.216 Tj -0 -132.907 Td -(4311 // skipelem\("", name\) = skipelem\("////", name\) = 0) 249.005 Tj -0 -142.4 Td +a") 275.2164 Tj +0 -132.9071 Td +(4311 // skipelem\("", name\) = skipelem\("////", name\) = 0) 249.0053 Tj +0 -142.4004 Td (4312 //) 30.5796 Tj -0 -151.894 Td +0 -151.8938 Td (4313 static char*) 74.2647 Tj -0 -161.387 Td +0 -161.3871 Td (4314 skipelem\(char *path, char *name\)) 161.635 Tj -0 -170.88 Td +0 -170.8805 Td (4315 {) 26.2111 Tj -0 -180.374 Td +0 -180.3739 Td (4316 char *s;) 65.5277 Tj -0 -189.867 Td +0 -189.8672 Td (4317 int len;) 65.5277 Tj -0 -199.361 Td +0 -199.3606 Td (4318 ) 21.8426 Tj -0 -208.854 Td -(4319 while\(*path == '/'\)) 113.581 Tj -0 -218.347 Td +0 -208.8539 Td +(4319 while\(*path == '/'\)) 113.5814 Tj +0 -218.3473 Td (4320 path++;) 69.8962 Tj -0 -227.841 Td +0 -227.8407 Td (4321 if\(*path == 0\)) 91.7388 Tj 0 -237.334 Td (4322 return 0;) 78.6333 Tj -0 -246.827 Td +0 -246.8274 Td (4323 s = path;) 69.8962 Tj -0 -256.321 Td -(4324 while\(*path != '/' && *path != 0\)) 174.741 Tj -0 -265.814 Td +0 -256.3207 Td +(4324 while\(*path != '/' && *path != 0\)) 174.7406 Tj +0 -265.8141 Td (4325 path++;) 69.8962 Tj -0 -275.307 Td +0 -275.3075 Td (4326 len = path - s;) 96.1073 Tj -0 -284.801 Td -(4327 if\(len >= DIRSIZ\)) 104.844 Tj -0 -294.294 Td -(4328 memmove\(name, s, DIRSIZ\);) 148.529 Tj -0 -303.788 Td +0 -284.8008 Td +(4327 if\(len >= DIRSIZ\)) 104.8443 Tj +0 -294.2942 Td +(4328 memmove\(name, s, DIRSIZ\);) 148.5295 Tj +0 -303.7875 Td (4329 else {) 56.7907 Tj -0 -313.281 Td -(4330 memmove\(name, s, len\);) 135.424 Tj -0 -322.774 Td -(4331 name[len] = 0;) 100.476 Tj -0 -332.268 Td +0 -313.2809 Td +(4330 memmove\(name, s, len\);) 135.4239 Tj +0 -322.7743 Td +(4331 name[len] = 0;) 100.4758 Tj +0 -332.2676 Td (4332 }) 34.9481 Tj 0 -341.761 Td -(4333 while\(*path == '/'\)) 113.581 Tj -0 -351.254 Td +(4333 while\(*path == '/'\)) 113.5814 Tj +0 -351.2543 Td (4334 path++;) 69.8962 Tj -0 -360.748 Td +0 -360.7477 Td (4335 return path;) 83.0018 Tj -0 -370.241 Td +0 -370.2411 Td (4336 }) 26.2111 Tj -0 -379.734 Td +0 -379.7344 Td (4337 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (4338 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (4339 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (4340 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4341 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4342 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4343 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4344 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4345 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4346 ) 21.8426 Tj 0 -474.668 Td (4347 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4348 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4349 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 43) 34.9481 Tj Q Q @@ -15468,113 +15459,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/fs.c Page 15) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/fs.c Page 15) 157.2665 Tj 0 -28.4801 Td -(4350 // Look up and return the inode for a path name.) 231.531 Tj +(4350 // Look up and return the inode for a path name.) 231.5313 Tj 0 -37.9735 Td (4351 // If parent != 0, return the inode for the parent and cop\ -y the final) 323.27 Tj +y the final) 323.2701 Tj 0 -47.4668 Td (4352 // path element into name, which must have room for DIRSIZ\ bytes.) 305.796 Tj 0 -56.9602 Td -(4353 static struct inode*) 109.213 Tj +(4353 static struct inode*) 109.2129 Tj 0 -66.4535 Td -(4354 _namei\(char *path, int parent, char *name\)) 205.32 Tj +(4354 _namei\(char *path, int parent, char *name\)) 205.3202 Tj 0 -75.9469 Td (4355 {) 26.2111 Tj 0 -85.4403 Td -(4356 struct inode *ip, *next;) 135.424 Tj +(4356 struct inode *ip, *next;) 135.4239 Tj 0 -94.9336 Td (4357 ) 21.8426 Tj 0 -104.427 Td -(4358 if\(*path == '/'\)) 100.476 Tj -0 -113.92 Td -(4359 ip = iget\(ROOTDEV, 1\);) 135.424 Tj -0 -123.414 Td +(4358 if\(*path == '/'\)) 100.4758 Tj +0 -113.9203 Td +(4359 ip = iget\(ROOTDEV, 1\);) 135.4239 Tj +0 -123.4137 Td (4360 else) 48.0537 Tj -0 -132.907 Td -(4361 ip = idup\(cp->cwd\);) 122.318 Tj -0 -142.4 Td +0 -132.9071 Td +(4361 ip = idup\(cp->cwd\);) 122.3184 Tj +0 -142.4004 Td (4362 ) 21.8426 Tj -0 -151.894 Td -(4363 while\(\(path = skipelem\(path, name\)\) != 0\){) 214.057 Tj -0 -161.387 Td +0 -151.8938 Td +(4363 while\(\(path = skipelem\(path, name\)\) != 0\){) 214.0572 Tj +0 -161.3871 Td (4364 ilock\(ip\);) 83.0018 Tj -0 -170.88 Td -(4365 if\(ip->type != T_DIR\){) 135.424 Tj -0 -180.374 Td -(4366 iunlockput\(ip\);) 113.581 Tj -0 -189.867 Td +0 -170.8805 Td +(4365 if\(ip->type != T_DIR\){) 135.4239 Tj +0 -180.3739 Td +(4366 iunlockput\(ip\);) 113.5814 Tj +0 -189.8672 Td (4367 return 0;) 87.3703 Tj -0 -199.361 Td +0 -199.3606 Td (4368 }) 43.6851 Tj -0 -208.854 Td +0 -208.8539 Td (4369 if\(parent && *path == '\\0'\){) 161.635 Tj -0 -218.347 Td +0 -218.3473 Td (4370 // Stop one level early.) 152.898 Tj -0 -227.841 Td -(4371 iunlock\(ip\);) 100.476 Tj +0 -227.8407 Td +(4371 iunlock\(ip\);) 100.4758 Tj 0 -237.334 Td (4372 return ip;) 91.7388 Tj -0 -246.827 Td +0 -246.8274 Td (4373 }) 43.6851 Tj -0 -256.321 Td -(4374 if\(\(next = dirlookup\(ip, name, 0\)\) == 0\){) 218.426 Tj -0 -265.814 Td -(4375 iunlockput\(ip\);) 113.581 Tj -0 -275.307 Td +0 -256.3207 Td +(4374 if\(\(next = dirlookup\(ip, name, 0\)\) == 0\){) 218.4257 Tj +0 -265.8141 Td +(4375 iunlockput\(ip\);) 113.5814 Tj +0 -275.3075 Td (4376 return 0;) 87.3703 Tj -0 -284.801 Td +0 -284.8008 Td (4377 }) 43.6851 Tj -0 -294.294 Td -(4378 iunlockput\(ip\);) 104.844 Tj -0 -303.788 Td +0 -294.2942 Td +(4378 iunlockput\(ip\);) 104.8443 Tj +0 -303.7875 Td (4379 ip = next;) 83.0018 Tj -0 -313.281 Td +0 -313.2809 Td (4380 }) 34.9481 Tj -0 -322.774 Td +0 -322.7743 Td (4381 if\(parent\){) 78.6333 Tj -0 -332.268 Td +0 -332.2676 Td (4382 iput\(ip\);) 78.6333 Tj 0 -341.761 Td (4383 return 0;) 78.6333 Tj -0 -351.254 Td +0 -351.2543 Td (4384 }) 34.9481 Tj -0 -360.748 Td +0 -360.7477 Td (4385 return ip;) 74.2647 Tj -0 -370.241 Td +0 -370.2411 Td (4386 }) 26.2111 Tj -0 -379.734 Td +0 -379.7344 Td (4387 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (4388 struct inode*) 78.6333 Tj -0 -398.721 Td +0 -398.7211 Td (4389 namei\(char *path\)) 96.1073 Tj -0 -408.214 Td +0 -408.2145 Td (4390 {) 26.2111 Tj -0 -417.708 Td -(4391 char name[DIRSIZ];) 109.213 Tj -0 -427.201 Td -(4392 return _namei\(path, 0, name\);) 157.267 Tj -0 -436.695 Td +0 -417.7079 Td +(4391 char name[DIRSIZ];) 109.2129 Tj +0 -427.2012 Td +(4392 return _namei\(path, 0, name\);) 157.2665 Tj +0 -436.6946 Td (4393 }) 26.2111 Tj -0 -446.188 Td +0 -446.1879 Td (4394 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4395 struct inode*) 78.6333 Tj -0 -465.175 Td -(4396 nameiparent\(char *path, char *name\)) 174.741 Tj +0 -465.1747 Td +(4396 nameiparent\(char *path, char *name\)) 174.7406 Tj 0 -474.668 Td (4397 {) 26.2111 Tj -0 -484.161 Td -(4398 return _namei\(path, 1, name\);) 157.267 Tj -0 -493.655 Td +0 -484.1614 Td +(4398 return _namei\(path, 1, name\);) 157.2665 Tj +0 -493.6547 Td (4399 }) 26.2111 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 43) 34.9481 Tj Q Q @@ -15603,8 +15594,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -15619,111 +15609,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/file.c Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/file.c Page 1) 161.635 Tj 0 -28.4801 Td -(4400 #include "types.h") 100.476 Tj +(4400 #include "types.h") 100.4758 Tj 0 -37.9735 Td (4401 #include "defs.h") 96.1073 Tj 0 -47.4668 Td -(4402 #include "param.h") 100.476 Tj +(4402 #include "param.h") 100.4758 Tj 0 -56.9602 Td (4403 #include "file.h") 96.1073 Tj 0 -66.4535 Td -(4404 #include "spinlock.h") 113.581 Tj +(4404 #include "spinlock.h") 113.5814 Tj 0 -75.9469 Td (4405 #include "dev.h") 91.7388 Tj 0 -85.4403 Td (4406 ) 21.8426 Tj 0 -94.9336 Td -(4407 struct devsw devsw[NDEV];) 131.055 Tj +(4407 struct devsw devsw[NDEV];) 131.0554 Tj 0 -104.427 Td (4408 struct spinlock file_table_lock;) 161.635 Tj -0 -113.92 Td -(4409 struct file file[NFILE];) 126.687 Tj -0 -123.414 Td +0 -113.9203 Td +(4409 struct file file[NFILE];) 126.6869 Tj +0 -123.4137 Td (4410 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (4411 void) 39.3166 Tj -0 -142.4 Td +0 -142.4004 Td (4412 fileinit\(void\)) 83.0018 Tj -0 -151.894 Td +0 -151.8938 Td (4413 {) 26.2111 Tj -0 -161.387 Td -(4414 initlock\(&file_table_lock, "file_table"\);) 209.689 Tj -0 -170.88 Td +0 -161.3871 Td +(4414 initlock\(&file_table_lock, "file_table"\);) 209.6887 Tj +0 -170.8805 Td (4415 }) 26.2111 Tj -0 -180.374 Td +0 -180.3739 Td (4416 ) 21.8426 Tj -0 -189.867 Td -(4417 // Allocate a file structure.) 148.529 Tj -0 -199.361 Td +0 -189.8672 Td +(4417 // Allocate a file structure.) 148.5295 Tj +0 -199.3606 Td (4418 struct file*) 74.2647 Tj -0 -208.854 Td +0 -208.8539 Td (4419 filealloc\(void\)) 87.3703 Tj -0 -218.347 Td +0 -218.3473 Td (4420 {) 26.2111 Tj -0 -227.841 Td +0 -227.8407 Td (4421 int i;) 56.7907 Tj 0 -237.334 Td (4422 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (4423 acquire\(&file_table_lock\);) 144.161 Tj -0 -256.321 Td -(4424 for\(i = 0; i < NFILE; i++\){) 148.529 Tj -0 -265.814 Td -(4425 if\(file[i].type == FD_CLOSED\){) 170.372 Tj -0 -275.307 Td -(4426 file[i].type = FD_NONE;) 148.529 Tj -0 -284.801 Td -(4427 file[i].ref = 1;) 117.95 Tj -0 -294.294 Td +0 -256.3207 Td +(4424 for\(i = 0; i < NFILE; i++\){) 148.5295 Tj +0 -265.8141 Td +(4425 if\(file[i].type == FD_CLOSED\){) 170.3721 Tj +0 -275.3075 Td +(4426 file[i].type = FD_NONE;) 148.5295 Tj +0 -284.8008 Td +(4427 file[i].ref = 1;) 117.9499 Tj +0 -294.2942 Td (4428 release\(&file_table_lock\);) 161.635 Tj -0 -303.788 Td -(4429 return file + i;) 117.95 Tj -0 -313.281 Td +0 -303.7875 Td +(4429 return file + i;) 117.9499 Tj +0 -313.2809 Td (4430 }) 43.6851 Tj -0 -322.774 Td +0 -322.7743 Td (4431 }) 34.9481 Tj -0 -332.268 Td +0 -332.2676 Td (4432 release\(&file_table_lock\);) 144.161 Tj 0 -341.761 Td (4433 return 0;) 69.8962 Tj -0 -351.254 Td +0 -351.2543 Td (4434 }) 26.2111 Tj -0 -360.748 Td +0 -360.7477 Td (4435 ) 21.8426 Tj -0 -370.241 Td -(4436 // Increment ref count for file f.) 170.372 Tj -0 -379.734 Td +0 -370.2411 Td +(4436 // Increment ref count for file f.) 170.3721 Tj +0 -379.7344 Td (4437 struct file*) 74.2647 Tj -0 -389.228 Td -(4438 filedup\(struct file *f\)) 122.318 Tj -0 -398.721 Td +0 -389.2278 Td +(4438 filedup\(struct file *f\)) 122.3184 Tj +0 -398.7211 Td (4439 {) 26.2111 Tj -0 -408.214 Td +0 -408.2145 Td (4440 acquire\(&file_table_lock\);) 144.161 Tj -0 -417.708 Td -(4441 if\(f->ref < 1 || f->type == FD_CLOSED\)) 196.583 Tj -0 -427.201 Td -(4442 panic\("filedup"\);) 113.581 Tj -0 -436.695 Td +0 -417.7079 Td +(4441 if\(f->ref < 1 || f->type == FD_CLOSED\)) 196.5831 Tj +0 -427.2012 Td +(4442 panic\("filedup"\);) 113.5814 Tj +0 -436.6946 Td (4443 f->ref++;) 69.8962 Tj -0 -446.188 Td +0 -446.1879 Td (4444 release\(&file_table_lock\);) 144.161 Tj -0 -455.681 Td +0 -455.6813 Td (4445 return f;) 69.8962 Tj -0 -465.175 Td +0 -465.1747 Td (4446 }) 26.2111 Tj 0 -474.668 Td (4447 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4448 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4449 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 44) 34.9481 Tj Q Q @@ -15738,17 +15728,17 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/file.c Page 2) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/file.c Page 2) 161.635 Tj 0 -28.4801 Td (4450 // Close file f. \(Decrement ref count, close when reache\ -s 0.\)) 292.69 Tj +s 0.\)) 292.6905 Tj 0 -37.9735 Td (4451 void) 39.3166 Tj 0 -47.4668 Td -(4452 fileclose\(struct file *f\)) 131.055 Tj +(4452 fileclose\(struct file *f\)) 131.0554 Tj 0 -56.9602 Td (4453 {) 26.2111 Tj 0 -66.4535 Td @@ -15758,92 +15748,92 @@ s 0.\)) 292.69 Tj 0 -85.4403 Td (4456 acquire\(&file_table_lock\);) 144.161 Tj 0 -94.9336 Td -(4457 if\(f->ref < 1 || f->type == FD_CLOSED\)) 196.583 Tj +(4457 if\(f->ref < 1 || f->type == FD_CLOSED\)) 196.5831 Tj 0 -104.427 Td -(4458 panic\("fileclose"\);) 122.318 Tj -0 -113.92 Td -(4459 if\(--f->ref > 0\){) 104.844 Tj -0 -123.414 Td +(4458 panic\("fileclose"\);) 122.3184 Tj +0 -113.9203 Td +(4459 if\(--f->ref > 0\){) 104.8443 Tj +0 -123.4137 Td (4460 release\(&file_table_lock\);) 152.898 Tj -0 -132.907 Td +0 -132.9071 Td (4461 return;) 69.8962 Tj -0 -142.4 Td +0 -142.4004 Td (4462 }) 34.9481 Tj -0 -151.894 Td +0 -151.8938 Td (4463 ff = *f;) 65.5277 Tj -0 -161.387 Td +0 -161.3871 Td (4464 f->ref = 0;) 78.6333 Tj -0 -170.88 Td -(4465 f->type = FD_CLOSED;) 117.95 Tj -0 -180.374 Td +0 -170.8805 Td +(4465 f->type = FD_CLOSED;) 117.9499 Tj +0 -180.3739 Td (4466 release\(&file_table_lock\);) 144.161 Tj -0 -189.867 Td +0 -189.8672 Td (4467 ) 21.8426 Tj -0 -199.361 Td -(4468 if\(ff.type == FD_PIPE\)) 126.687 Tj -0 -208.854 Td -(4469 pipeclose\(ff.pipe, ff.writable\);) 179.109 Tj -0 -218.347 Td +0 -199.3606 Td +(4468 if\(ff.type == FD_PIPE\)) 126.6869 Tj +0 -208.8539 Td +(4469 pipeclose\(ff.pipe, ff.writable\);) 179.1091 Tj +0 -218.3473 Td (4470 else if\(ff.type == FD_INODE\)) 152.898 Tj -0 -227.841 Td +0 -227.8407 Td (4471 iput\(ff.ip\);) 91.7388 Tj 0 -237.334 Td (4472 else) 48.0537 Tj -0 -246.827 Td -(4473 panic\("fileclose"\);) 122.318 Tj -0 -256.321 Td +0 -246.8274 Td +(4473 panic\("fileclose"\);) 122.3184 Tj +0 -256.3207 Td (4474 }) 26.2111 Tj -0 -265.814 Td +0 -265.8141 Td (4475 ) 21.8426 Tj -0 -275.307 Td -(4476 // Get metadata about file f.) 148.529 Tj -0 -284.801 Td +0 -275.3075 Td +(4476 // Get metadata about file f.) 148.5295 Tj +0 -284.8008 Td (4477 int) 34.9481 Tj -0 -294.294 Td -(4478 filestat\(struct file *f, struct stat *st\)) 200.952 Tj -0 -303.788 Td +0 -294.2942 Td +(4478 filestat\(struct file *f, struct stat *st\)) 200.9517 Tj +0 -303.7875 Td (4479 {) 26.2111 Tj -0 -313.281 Td -(4480 if\(f->type == FD_INODE\){) 135.424 Tj -0 -322.774 Td +0 -313.2809 Td +(4480 if\(f->type == FD_INODE\){) 135.4239 Tj +0 -322.7743 Td (4481 ilock\(f->ip\);) 96.1073 Tj -0 -332.268 Td -(4482 stati\(f->ip, st\);) 113.581 Tj +0 -332.2676 Td +(4482 stati\(f->ip, st\);) 113.5814 Tj 0 -341.761 Td -(4483 iunlock\(f->ip\);) 104.844 Tj -0 -351.254 Td +(4483 iunlock\(f->ip\);) 104.8443 Tj +0 -351.2543 Td (4484 return 0;) 78.6333 Tj -0 -360.748 Td +0 -360.7477 Td (4485 }) 34.9481 Tj -0 -370.241 Td +0 -370.2411 Td (4486 return -1;) 74.2647 Tj -0 -379.734 Td +0 -379.7344 Td (4487 }) 26.2111 Tj -0 -389.228 Td +0 -389.2278 Td (4488 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (4489 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (4490 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4491 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4492 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4493 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4494 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4495 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4496 ) 21.8426 Tj 0 -474.668 Td (4497 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4498 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4499 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 44) 34.9481 Tj Q Q @@ -15872,8 +15862,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -15888,16 +15877,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/file.c Page 3) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/file.c Page 3) 161.635 Tj 0 -28.4801 Td -(4500 // Read from file f. Addr is kernel address.) 218.426 Tj +(4500 // Read from file f. Addr is kernel address.) 218.4257 Tj 0 -37.9735 Td (4501 int) 34.9481 Tj 0 -47.4668 Td -(4502 fileread\(struct file *f, char *addr, int n\)) 209.689 Tj +(4502 fileread\(struct file *f, char *addr, int n\)) 209.6887 Tj 0 -56.9602 Td (4503 {) 26.2111 Tj 0 -66.4535 Td @@ -15905,94 +15894,94 @@ q 0 -75.9469 Td (4505 ) 21.8426 Tj 0 -85.4403 Td -(4506 if\(f->readable == 0\)) 117.95 Tj +(4506 if\(f->readable == 0\)) 117.9499 Tj 0 -94.9336 Td (4507 return -1;) 83.0018 Tj 0 -104.427 Td -(4508 if\(f->type == FD_PIPE\)) 126.687 Tj -0 -113.92 Td -(4509 return piperead\(f->pipe, addr, n\);) 187.846 Tj -0 -123.414 Td -(4510 if\(f->type == FD_INODE\){) 135.424 Tj -0 -132.907 Td +(4508 if\(f->type == FD_PIPE\)) 126.6869 Tj +0 -113.9203 Td +(4509 return piperead\(f->pipe, addr, n\);) 187.8461 Tj +0 -123.4137 Td +(4510 if\(f->type == FD_INODE\){) 135.4239 Tj +0 -132.9071 Td (4511 ilock\(f->ip\);) 96.1073 Tj -0 -142.4 Td -(4512 if\(\(r = readi\(f->ip, addr, f->off, n\)\) > 0\)) 227.163 Tj -0 -151.894 Td -(4513 f->off += r;) 100.476 Tj -0 -161.387 Td -(4514 iunlock\(f->ip\);) 104.844 Tj -0 -170.88 Td +0 -142.4004 Td +(4512 if\(\(r = readi\(f->ip, addr, f->off, n\)\) > 0\)) 227.1628 Tj +0 -151.8938 Td +(4513 f->off += r;) 100.4758 Tj +0 -161.3871 Td +(4514 iunlock\(f->ip\);) 104.8443 Tj +0 -170.8805 Td (4515 return r;) 78.6333 Tj -0 -180.374 Td +0 -180.3739 Td (4516 }) 34.9481 Tj -0 -189.867 Td -(4517 panic\("fileread"\);) 109.213 Tj -0 -199.361 Td +0 -189.8672 Td +(4517 panic\("fileread"\);) 109.2129 Tj +0 -199.3606 Td (4518 }) 26.2111 Tj -0 -208.854 Td +0 -208.8539 Td (4519 ) 21.8426 Tj -0 -218.347 Td -(4520 // Write to file f. Addr is kernel address.) 214.057 Tj -0 -227.841 Td +0 -218.3473 Td +(4520 // Write to file f. Addr is kernel address.) 214.0572 Tj +0 -227.8407 Td (4521 int) 34.9481 Tj 0 -237.334 Td -(4522 filewrite\(struct file *f, char *addr, int n\)) 214.057 Tj -0 -246.827 Td +(4522 filewrite\(struct file *f, char *addr, int n\)) 214.0572 Tj +0 -246.8274 Td (4523 {) 26.2111 Tj -0 -256.321 Td +0 -256.3207 Td (4524 int r;) 56.7907 Tj -0 -265.814 Td +0 -265.8141 Td (4525 ) 21.8426 Tj -0 -275.307 Td -(4526 if\(f->writable == 0\)) 117.95 Tj -0 -284.801 Td +0 -275.3075 Td +(4526 if\(f->writable == 0\)) 117.9499 Tj +0 -284.8008 Td (4527 return -1;) 83.0018 Tj -0 -294.294 Td -(4528 if\(f->type == FD_PIPE\)) 126.687 Tj -0 -303.788 Td -(4529 return pipewrite\(f->pipe, addr, n\);) 192.215 Tj -0 -313.281 Td -(4530 if\(f->type == FD_INODE\){) 135.424 Tj -0 -322.774 Td +0 -294.2942 Td +(4528 if\(f->type == FD_PIPE\)) 126.6869 Tj +0 -303.7875 Td +(4529 return pipewrite\(f->pipe, addr, n\);) 192.2146 Tj +0 -313.2809 Td +(4530 if\(f->type == FD_INODE\){) 135.4239 Tj +0 -322.7743 Td (4531 ilock\(f->ip\);) 96.1073 Tj -0 -332.268 Td -(4532 if\(\(r = writei\(f->ip, addr, f->off, n\)\) > 0\)) 231.531 Tj +0 -332.2676 Td +(4532 if\(\(r = writei\(f->ip, addr, f->off, n\)\) > 0\)) 231.5313 Tj 0 -341.761 Td -(4533 f->off += r;) 100.476 Tj -0 -351.254 Td -(4534 iunlock\(f->ip\);) 104.844 Tj -0 -360.748 Td +(4533 f->off += r;) 100.4758 Tj +0 -351.2543 Td +(4534 iunlock\(f->ip\);) 104.8443 Tj +0 -360.7477 Td (4535 return r;) 78.6333 Tj -0 -370.241 Td +0 -370.2411 Td (4536 }) 34.9481 Tj -0 -379.734 Td -(4537 panic\("filewrite"\);) 113.581 Tj -0 -389.228 Td +0 -379.7344 Td +(4537 panic\("filewrite"\);) 113.5814 Tj +0 -389.2278 Td (4538 }) 26.2111 Tj -0 -398.721 Td +0 -398.7211 Td (4539 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (4540 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4541 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4542 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4543 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4544 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4545 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4546 ) 21.8426 Tj 0 -474.668 Td (4547 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4548 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4549 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 45) 34.9481 Tj Q Q @@ -16007,16 +15996,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 1) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 1) 174.7406 Tj 0 -28.4801 Td -(4550 #include "types.h") 100.476 Tj +(4550 #include "types.h") 100.4758 Tj 0 -37.9735 Td (4551 #include "defs.h") 96.1073 Tj 0 -47.4668 Td -(4552 #include "param.h") 100.476 Tj +(4552 #include "param.h") 100.4758 Tj 0 -56.9602 Td (4553 #include "stat.h") 96.1073 Tj 0 -66.4535 Td @@ -16026,94 +16015,94 @@ q 0 -85.4403 Td (4556 #include "fs.h") 87.3703 Tj 0 -94.9336 Td -(4557 #include "fsvar.h") 100.476 Tj +(4557 #include "fsvar.h") 100.4758 Tj 0 -104.427 Td (4558 #include "file.h") 96.1073 Tj -0 -113.92 Td -(4559 #include "fcntl.h") 100.476 Tj -0 -123.414 Td +0 -113.9203 Td +(4559 #include "fcntl.h") 100.4758 Tj +0 -123.4137 Td (4560 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (4561 // Fetch the nth word-sized system call argument as a file\ - descriptor) 323.27 Tj -0 -142.4 Td + descriptor) 323.2701 Tj +0 -142.4004 Td (4562 // and return both the descriptor and the corresponding st\ -ruct file.) 318.902 Tj -0 -151.894 Td +ruct file.) 318.9016 Tj +0 -151.8938 Td (4563 static int) 65.5277 Tj -0 -161.387 Td -(4564 argfd\(int n, int *pfd, struct file **pf\)) 196.583 Tj -0 -170.88 Td +0 -161.3871 Td +(4564 argfd\(int n, int *pfd, struct file **pf\)) 196.5831 Tj +0 -170.8805 Td (4565 {) 26.2111 Tj -0 -180.374 Td +0 -180.3739 Td (4566 int fd;) 61.1592 Tj -0 -189.867 Td +0 -189.8672 Td (4567 struct file *f;) 96.1073 Tj -0 -199.361 Td +0 -199.3606 Td (4568 ) 21.8426 Tj -0 -208.854 Td -(4569 if\(argint\(n, &fd\) < 0\)) 126.687 Tj -0 -218.347 Td +0 -208.8539 Td +(4569 if\(argint\(n, &fd\) < 0\)) 126.6869 Tj +0 -218.3473 Td (4570 return -1;) 83.0018 Tj -0 -227.841 Td -(4571 if\(fd < 0 || fd >= NOFILE || \(f=cp->ofile[fd]\) == 0\)) 257.742 Tj +0 -227.8407 Td +(4571 if\(fd < 0 || fd >= NOFILE || \(f=cp->ofile[fd]\) == 0\)) 257.7424 Tj 0 -237.334 Td (4572 return -1;) 83.0018 Tj -0 -246.827 Td +0 -246.8274 Td (4573 if\(pfd\)) 61.1592 Tj -0 -256.321 Td +0 -256.3207 Td (4574 *pfd = fd;) 83.0018 Tj -0 -265.814 Td +0 -265.8141 Td (4575 if\(pf\)) 56.7907 Tj -0 -275.307 Td +0 -275.3075 Td (4576 *pf = f;) 74.2647 Tj -0 -284.801 Td +0 -284.8008 Td (4577 return 0;) 69.8962 Tj -0 -294.294 Td +0 -294.2942 Td (4578 }) 26.2111 Tj -0 -303.788 Td +0 -303.7875 Td (4579 ) 21.8426 Tj -0 -313.281 Td -(4580 // Allocate a file descriptor for the given file.) 235.9 Tj -0 -322.774 Td -(4581 // Takes over file reference from caller on success.) 249.005 Tj -0 -332.268 Td +0 -313.2809 Td +(4580 // Allocate a file descriptor for the given file.) 235.8998 Tj +0 -322.7743 Td +(4581 // Takes over file reference from caller on success.) 249.0053 Tj +0 -332.2676 Td (4582 static int) 65.5277 Tj 0 -341.761 Td -(4583 fdalloc\(struct file *f\)) 122.318 Tj -0 -351.254 Td +(4583 fdalloc\(struct file *f\)) 122.3184 Tj +0 -351.2543 Td (4584 {) 26.2111 Tj -0 -360.748 Td +0 -360.7477 Td (4585 int fd;) 61.1592 Tj -0 -370.241 Td +0 -370.2411 Td (4586 ) 21.8426 Tj -0 -379.734 Td -(4587 for\(fd = 0; fd < NOFILE; fd++\){) 166.004 Tj -0 -389.228 Td -(4588 if\(cp->ofile[fd] == 0\){) 139.792 Tj -0 -398.721 Td -(4589 cp->ofile[fd] = f;) 126.687 Tj -0 -408.214 Td +0 -379.7344 Td +(4587 for\(fd = 0; fd < NOFILE; fd++\){) 166.0035 Tj +0 -389.2278 Td +(4588 if\(cp->ofile[fd] == 0\){) 139.7925 Tj +0 -398.7211 Td +(4589 cp->ofile[fd] = f;) 126.6869 Tj +0 -408.2145 Td (4590 return fd;) 91.7388 Tj -0 -417.708 Td +0 -417.7079 Td (4591 }) 43.6851 Tj -0 -427.201 Td +0 -427.2012 Td (4592 }) 34.9481 Tj -0 -436.695 Td +0 -436.6946 Td (4593 return -1;) 74.2647 Tj -0 -446.188 Td +0 -446.1879 Td (4594 }) 26.2111 Tj -0 -455.681 Td +0 -455.6813 Td (4595 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4596 ) 21.8426 Tj 0 -474.668 Td (4597 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4598 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4599 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 45) 34.9481 Tj Q Q @@ -16142,8 +16131,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -16158,10 +16146,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 2) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 2) 174.7406 Tj 0 -28.4801 Td (4600 int) 34.9481 Tj 0 -37.9735 Td @@ -16173,98 +16161,98 @@ q 0 -66.4535 Td (4604 int n;) 56.7907 Tj 0 -75.9469 Td -(4605 char *cp;) 69.8962 Tj +(4605 char *p;) 65.5277 Tj 0 -85.4403 Td (4606 ) 21.8426 Tj 0 -94.9336 Td (4607 if\(argfd\(0, 0, &f\) < 0 || argint\(2, &n\) < 0 || argp\ -tr\(1, &cp, n\) < 0\)) 332.007 Tj +tr\(1, &p, n\) < 0\)) 327.6386 Tj 0 -104.427 Td (4608 return -1;) 83.0018 Tj -0 -113.92 Td -(4609 return fileread\(f, cp, n\);) 144.161 Tj -0 -123.414 Td +0 -113.9203 Td +(4609 return fileread\(f, p, n\);) 139.7925 Tj +0 -123.4137 Td (4610 }) 26.2111 Tj -0 -132.907 Td +0 -132.9071 Td (4611 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (4612 int) 34.9481 Tj -0 -151.894 Td +0 -151.8938 Td (4613 sys_write\(void\)) 87.3703 Tj -0 -161.387 Td +0 -161.3871 Td (4614 {) 26.2111 Tj -0 -170.88 Td +0 -170.8805 Td (4615 struct file *f;) 96.1073 Tj -0 -180.374 Td +0 -180.3739 Td (4616 int n;) 56.7907 Tj -0 -189.867 Td -(4617 char *cp;) 69.8962 Tj -0 -199.361 Td +0 -189.8672 Td +(4617 char *p;) 65.5277 Tj +0 -199.3606 Td (4618 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (4619 if\(argfd\(0, 0, &f\) < 0 || argint\(2, &n\) < 0 || argp\ -tr\(1, &cp, n\) < 0\)) 332.007 Tj -0 -218.347 Td +tr\(1, &p, n\) < 0\)) 327.6386 Tj +0 -218.3473 Td (4620 return -1;) 83.0018 Tj -0 -227.841 Td -(4621 return filewrite\(f, cp, n\);) 148.529 Tj +0 -227.8407 Td +(4621 return filewrite\(f, p, n\);) 144.161 Tj 0 -237.334 Td (4622 }) 26.2111 Tj -0 -246.827 Td +0 -246.8274 Td (4623 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (4624 int) 34.9481 Tj -0 -265.814 Td +0 -265.8141 Td (4625 sys_dup\(void\)) 78.6333 Tj -0 -275.307 Td +0 -275.3075 Td (4626 {) 26.2111 Tj -0 -284.801 Td +0 -284.8008 Td (4627 struct file *f;) 96.1073 Tj -0 -294.294 Td +0 -294.2942 Td (4628 int fd;) 61.1592 Tj -0 -303.788 Td +0 -303.7875 Td (4629 ) 21.8426 Tj -0 -313.281 Td -(4630 if\(argfd\(0, 0, &f\) < 0\)) 131.055 Tj -0 -322.774 Td +0 -313.2809 Td +(4630 if\(argfd\(0, 0, &f\) < 0\)) 131.0554 Tj +0 -322.7743 Td (4631 return -1;) 83.0018 Tj -0 -332.268 Td -(4632 if\(\(fd=fdalloc\(f\)\) < 0\)) 131.055 Tj +0 -332.2676 Td +(4632 if\(\(fd=fdalloc\(f\)\) < 0\)) 131.0554 Tj 0 -341.761 Td (4633 return -1;) 83.0018 Tj -0 -351.254 Td +0 -351.2543 Td (4634 filedup\(f\);) 78.6333 Tj -0 -360.748 Td +0 -360.7477 Td (4635 return fd;) 74.2647 Tj -0 -370.241 Td +0 -370.2411 Td (4636 }) 26.2111 Tj -0 -379.734 Td +0 -379.7344 Td (4637 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (4638 int) 34.9481 Tj -0 -398.721 Td +0 -398.7211 Td (4639 sys_close\(void\)) 87.3703 Tj -0 -408.214 Td +0 -408.2145 Td (4640 {) 26.2111 Tj -0 -417.708 Td +0 -417.7079 Td (4641 int fd;) 61.1592 Tj -0 -427.201 Td +0 -427.2012 Td (4642 struct file *f;) 96.1073 Tj -0 -436.695 Td +0 -436.6946 Td (4643 ) 21.8426 Tj -0 -446.188 Td -(4644 if\(argfd\(0, &fd, &f\) < 0\)) 139.792 Tj -0 -455.681 Td +0 -446.1879 Td +(4644 if\(argfd\(0, &fd, &f\) < 0\)) 139.7925 Tj +0 -455.6813 Td (4645 return -1;) 83.0018 Tj -0 -465.175 Td -(4646 cp->ofile[fd] = 0;) 109.213 Tj +0 -465.1747 Td +(4646 cp->ofile[fd] = 0;) 109.2129 Tj 0 -474.668 Td (4647 fileclose\(f\);) 87.3703 Tj -0 -484.161 Td +0 -484.1614 Td (4648 return 0;) 69.8962 Tj -0 -493.655 Td +0 -493.6547 Td (4649 }) 26.2111 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 46) 34.9481 Tj Q Q @@ -16279,10 +16267,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 3) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 3) 174.7406 Tj 0 -28.4801 Td (4650 int) 34.9481 Tj 0 -37.9735 Td @@ -16292,7 +16280,7 @@ q 0 -56.9602 Td (4653 struct file *f;) 96.1073 Tj 0 -66.4535 Td -(4654 struct stat *st;) 100.476 Tj +(4654 struct stat *st;) 100.4758 Tj 0 -75.9469 Td (4655 ) 21.8426 Tj 0 -85.4403 Td @@ -16301,91 +16289,91 @@ zeof\(*st\)\) < 0\)) 314.533 Tj 0 -94.9336 Td (4657 return -1;) 83.0018 Tj 0 -104.427 Td -(4658 return filestat\(f, st\);) 131.055 Tj -0 -113.92 Td +(4658 return filestat\(f, st\);) 131.0554 Tj +0 -113.9203 Td (4659 }) 26.2111 Tj -0 -123.414 Td +0 -123.4137 Td (4660 ) 21.8426 Tj -0 -132.907 Td -(4661 // Create the path new as a link to the same inode as old.) 275.216 Tj -0 -142.4 Td +0 -132.9071 Td +(4661 // Create the path new as a link to the same inode as old.) 275.2164 Tj +0 -142.4004 Td (4662 int) 34.9481 Tj -0 -151.894 Td +0 -151.8938 Td (4663 sys_link\(void\)) 83.0018 Tj -0 -161.387 Td +0 -161.3871 Td (4664 {) 26.2111 Tj -0 -170.88 Td +0 -170.8805 Td (4665 char name[DIRSIZ], *new, *old;) 161.635 Tj -0 -180.374 Td -(4666 struct inode *dp, *ip;) 126.687 Tj -0 -189.867 Td +0 -180.3739 Td +(4666 struct inode *dp, *ip;) 126.6869 Tj +0 -189.8672 Td (4667 ) 21.8426 Tj -0 -199.361 Td -(4668 if\(argstr\(0, &old\) < 0 || argstr\(1, &new\) < 0\)) 231.531 Tj -0 -208.854 Td +0 -199.3606 Td +(4668 if\(argstr\(0, &old\) < 0 || argstr\(1, &new\) < 0\)) 231.5313 Tj +0 -208.8539 Td (4669 return -1;) 83.0018 Tj -0 -218.347 Td +0 -218.3473 Td (4670 if\(\(ip = namei\(old\)\) == 0\)) 144.161 Tj -0 -227.841 Td +0 -227.8407 Td (4671 return -1;) 83.0018 Tj 0 -237.334 Td (4672 ilock\(ip\);) 74.2647 Tj -0 -246.827 Td -(4673 if\(ip->type == T_DIR\){) 126.687 Tj -0 -256.321 Td -(4674 iunlockput\(ip\);) 104.844 Tj -0 -265.814 Td +0 -246.8274 Td +(4673 if\(ip->type == T_DIR\){) 126.6869 Tj +0 -256.3207 Td +(4674 iunlockput\(ip\);) 104.8443 Tj +0 -265.8141 Td (4675 return -1;) 83.0018 Tj -0 -275.307 Td +0 -275.3075 Td (4676 }) 34.9481 Tj -0 -284.801 Td +0 -284.8008 Td (4677 ip->nlink++;) 83.0018 Tj -0 -294.294 Td +0 -294.2942 Td (4678 iupdate\(ip\);) 83.0018 Tj -0 -303.788 Td +0 -303.7875 Td (4679 iunlock\(ip\);) 83.0018 Tj -0 -313.281 Td +0 -313.2809 Td (4680 ) 21.8426 Tj -0 -322.774 Td -(4681 if\(\(dp = nameiparent\(new, name\)\) == 0\)) 196.583 Tj -0 -332.268 Td +0 -322.7743 Td +(4681 if\(\(dp = nameiparent\(new, name\)\) == 0\)) 196.5831 Tj +0 -332.2676 Td (4682 goto bad;) 83.0018 Tj 0 -341.761 Td (4683 ilock\(dp\);) 74.2647 Tj -0 -351.254 Td +0 -351.2543 Td (4684 if\(dp->dev != ip->dev || dirlink\(dp, name, ip->inum\) \ -< 0\)) 279.585 Tj -0 -360.748 Td +< 0\)) 279.5849 Tj +0 -360.7477 Td (4685 goto bad;) 78.6333 Tj -0 -370.241 Td +0 -370.2411 Td (4686 iunlockput\(dp\);) 96.1073 Tj -0 -379.734 Td +0 -379.7344 Td (4687 iput\(ip\);) 69.8962 Tj -0 -389.228 Td +0 -389.2278 Td (4688 return 0;) 69.8962 Tj -0 -398.721 Td +0 -398.7211 Td (4689 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (4690 bad:) 39.3166 Tj -0 -417.708 Td +0 -417.7079 Td (4691 if\(dp\)) 56.7907 Tj -0 -427.201 Td -(4692 iunlockput\(dp\);) 104.844 Tj -0 -436.695 Td +0 -427.2012 Td +(4692 iunlockput\(dp\);) 104.8443 Tj +0 -436.6946 Td (4693 ilock\(ip\);) 74.2647 Tj -0 -446.188 Td +0 -446.1879 Td (4694 ip->nlink--;) 83.0018 Tj -0 -455.681 Td +0 -455.6813 Td (4695 iupdate\(ip\);) 83.0018 Tj -0 -465.175 Td +0 -465.1747 Td (4696 iunlockput\(ip\);) 96.1073 Tj 0 -474.668 Td (4697 return -1;) 74.2647 Tj -0 -484.161 Td +0 -484.1614 Td (4698 }) 26.2111 Tj -0 -493.655 Td +0 -493.6547 Td (4699 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 46) 34.9481 Tj Q Q @@ -16414,8 +16402,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -16430,12 +16417,12 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 4) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 4) 174.7406 Tj 0 -28.4801 Td -(4700 // Is the directory dp empty except for "." and ".." ?) 257.742 Tj +(4700 // Is the directory dp empty except for "." and ".." ?) 257.7424 Tj 0 -37.9735 Td (4701 static int) 65.5277 Tj 0 -47.4668 Td @@ -16445,98 +16432,98 @@ q 0 -66.4535 Td (4704 int off;) 65.5277 Tj 0 -75.9469 Td -(4705 struct dirent de;) 104.844 Tj +(4705 struct dirent de;) 104.8443 Tj 0 -85.4403 Td (4706 ) 21.8426 Tj 0 -94.9336 Td (4707 for\(off=2*sizeof\(de\); offsize; off+=sizeof\(de\)\ -\){) 262.111 Tj +\){) 262.1109 Tj 0 -104.427 Td (4708 if\(readi\(dp, \(char*\)&de, off, sizeof\(de\)\) != si\ -zeof\(de\)\)) 283.953 Tj -0 -113.92 Td -(4709 panic\("isdirempty: readi"\);) 166.004 Tj -0 -123.414 Td -(4710 if\(de.inum != 0\)) 109.213 Tj -0 -132.907 Td +zeof\(de\)\)) 283.9534 Tj +0 -113.9203 Td +(4709 panic\("isdirempty: readi"\);) 166.0035 Tj +0 -123.4137 Td +(4710 if\(de.inum != 0\)) 109.2129 Tj +0 -132.9071 Td (4711 return 0;) 87.3703 Tj -0 -142.4 Td +0 -142.4004 Td (4712 }) 34.9481 Tj -0 -151.894 Td +0 -151.8938 Td (4713 return 1;) 69.8962 Tj -0 -161.387 Td +0 -161.3871 Td (4714 }) 26.2111 Tj -0 -170.88 Td +0 -170.8805 Td (4715 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (4716 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (4717 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (4718 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (4719 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (4720 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (4721 ) 21.8426 Tj 0 -237.334 Td (4722 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (4723 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (4724 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (4725 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (4726 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (4727 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (4728 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (4729 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (4730 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (4731 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (4732 ) 21.8426 Tj 0 -341.761 Td (4733 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (4734 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (4735 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (4736 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (4737 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (4738 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (4739 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (4740 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4741 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4742 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4743 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4744 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4745 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4746 ) 21.8426 Tj 0 -474.668 Td (4747 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4748 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4749 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 47) 34.9481 Tj Q Q @@ -16551,10 +16538,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 5) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 5) 174.7406 Tj 0 -28.4801 Td (4750 int) 34.9481 Tj 0 -37.9735 Td @@ -16562,102 +16549,102 @@ q 0 -47.4668 Td (4752 {) 26.2111 Tj 0 -56.9602 Td -(4753 struct inode *ip, *dp;) 126.687 Tj +(4753 struct inode *ip, *dp;) 126.6869 Tj 0 -66.4535 Td -(4754 struct dirent de;) 104.844 Tj +(4754 struct dirent de;) 104.8443 Tj 0 -75.9469 Td -(4755 char name[DIRSIZ], *path;) 139.792 Tj +(4755 char name[DIRSIZ], *path;) 139.7925 Tj 0 -85.4403 Td (4756 uint off;) 69.8962 Tj 0 -94.9336 Td (4757 ) 21.8426 Tj 0 -104.427 Td -(4758 if\(argstr\(0, &path\) < 0\)) 135.424 Tj -0 -113.92 Td +(4758 if\(argstr\(0, &path\) < 0\)) 135.4239 Tj +0 -113.9203 Td (4759 return -1;) 83.0018 Tj -0 -123.414 Td -(4760 if\(\(dp = nameiparent\(path, name\)\) == 0\)) 200.952 Tj -0 -132.907 Td +0 -123.4137 Td +(4760 if\(\(dp = nameiparent\(path, name\)\) == 0\)) 200.9517 Tj +0 -132.9071 Td (4761 return -1;) 83.0018 Tj -0 -142.4 Td +0 -142.4004 Td (4762 ilock\(dp\);) 74.2647 Tj -0 -151.894 Td +0 -151.8938 Td (4763 ) 21.8426 Tj -0 -161.387 Td -(4764 // Cannot unlink "." or "..".) 157.267 Tj -0 -170.88 Td +0 -161.3871 Td +(4764 // Cannot unlink "." or "..".) 157.2665 Tj +0 -170.8805 Td (4765 if\(namecmp\(name, "."\) == 0 || namecmp\(name, ".."\) =\ -= 0\){) 275.216 Tj -0 -180.374 Td -(4766 iunlockput\(dp\);) 104.844 Tj -0 -189.867 Td += 0\){) 275.2164 Tj +0 -180.3739 Td +(4766 iunlockput\(dp\);) 104.8443 Tj +0 -189.8672 Td (4767 return -1;) 83.0018 Tj -0 -199.361 Td +0 -199.3606 Td (4768 }) 34.9481 Tj -0 -208.854 Td +0 -208.8539 Td (4769 ) 21.8426 Tj -0 -218.347 Td -(4770 if\(\(ip = dirlookup\(dp, name, &off\)\) == 0\){) 214.057 Tj -0 -227.841 Td -(4771 iunlockput\(dp\);) 104.844 Tj +0 -218.3473 Td +(4770 if\(\(ip = dirlookup\(dp, name, &off\)\) == 0\){) 214.0572 Tj +0 -227.8407 Td +(4771 iunlockput\(dp\);) 104.8443 Tj 0 -237.334 Td (4772 return -1;) 83.0018 Tj -0 -246.827 Td +0 -246.8274 Td (4773 }) 34.9481 Tj -0 -256.321 Td +0 -256.3207 Td (4774 ilock\(ip\);) 74.2647 Tj -0 -265.814 Td +0 -265.8141 Td (4775 ) 21.8426 Tj -0 -275.307 Td -(4776 if\(ip->nlink < 1\)) 104.844 Tj -0 -284.801 Td -(4777 panic\("unlink: nlink < 1"\);) 157.267 Tj -0 -294.294 Td -(4778 if\(ip->type == T_DIR && !isdirempty\(ip\)\){) 209.689 Tj -0 -303.788 Td -(4779 iunlockput\(ip\);) 104.844 Tj -0 -313.281 Td -(4780 iunlockput\(dp\);) 104.844 Tj -0 -322.774 Td +0 -275.3075 Td +(4776 if\(ip->nlink < 1\)) 104.8443 Tj +0 -284.8008 Td +(4777 panic\("unlink: nlink < 1"\);) 157.2665 Tj +0 -294.2942 Td +(4778 if\(ip->type == T_DIR && !isdirempty\(ip\)\){) 209.6887 Tj +0 -303.7875 Td +(4779 iunlockput\(ip\);) 104.8443 Tj +0 -313.2809 Td +(4780 iunlockput\(dp\);) 104.8443 Tj +0 -322.7743 Td (4781 return -1;) 83.0018 Tj -0 -332.268 Td +0 -332.2676 Td (4782 }) 34.9481 Tj 0 -341.761 Td (4783 ) 21.8426 Tj -0 -351.254 Td -(4784 memset\(&de, 0, sizeof\(de\)\);) 148.529 Tj -0 -360.748 Td +0 -351.2543 Td +(4784 memset\(&de, 0, sizeof\(de\)\);) 148.5295 Tj +0 -360.7477 Td (4785 if\(writei\(dp, \(char*\)&de, off, sizeof\(de\)\) != siz\ -eof\(de\)\)) 279.585 Tj -0 -370.241 Td +eof\(de\)\)) 279.5849 Tj +0 -370.2411 Td (4786 panic\("unlink: writei"\);) 144.161 Tj -0 -379.734 Td +0 -379.7344 Td (4787 iunlockput\(dp\);) 96.1073 Tj -0 -389.228 Td +0 -389.2278 Td (4788 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (4789 ip->nlink--;) 83.0018 Tj -0 -408.214 Td +0 -408.2145 Td (4790 iupdate\(ip\);) 83.0018 Tj -0 -417.708 Td +0 -417.7079 Td (4791 iunlockput\(ip\);) 96.1073 Tj -0 -427.201 Td +0 -427.2012 Td (4792 return 0;) 69.8962 Tj -0 -436.695 Td +0 -436.6946 Td (4793 }) 26.2111 Tj -0 -446.188 Td +0 -446.1879 Td (4794 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4795 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4796 ) 21.8426 Tj 0 -474.668 Td (4797 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4798 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4799 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 47) 34.9481 Tj Q Q @@ -16686,8 +16673,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -16702,115 +16688,115 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 6) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 6) 174.7406 Tj 0 -28.4801 Td -(4800 static struct inode*) 109.213 Tj +(4800 static struct inode*) 109.2129 Tj 0 -37.9735 Td (4801 create\(char *path, int canexist, short type, short major,\ - short minor\)) 327.639 Tj + short minor\)) 327.6386 Tj 0 -47.4668 Td (4802 {) 26.2111 Tj 0 -56.9602 Td (4803 uint off;) 69.8962 Tj 0 -66.4535 Td -(4804 struct inode *ip, *dp;) 126.687 Tj +(4804 struct inode *ip, *dp;) 126.6869 Tj 0 -75.9469 Td -(4805 char name[DIRSIZ];) 109.213 Tj +(4805 char name[DIRSIZ];) 109.2129 Tj 0 -85.4403 Td (4806 ) 21.8426 Tj 0 -94.9336 Td -(4807 if\(\(dp = nameiparent\(path, name\)\) == 0\)) 200.952 Tj +(4807 if\(\(dp = nameiparent\(path, name\)\) == 0\)) 200.9517 Tj 0 -104.427 Td (4808 return 0;) 78.6333 Tj -0 -113.92 Td +0 -113.9203 Td (4809 ilock\(dp\);) 74.2647 Tj -0 -123.414 Td +0 -123.4137 Td (4810 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (4811 if\(canexist && \(ip = dirlookup\(dp, name, &off\)\) != \ -0\){) 266.479 Tj -0 -142.4 Td -(4812 iunlockput\(dp\);) 104.844 Tj -0 -151.894 Td +0\){) 266.4794 Tj +0 -142.4004 Td +(4812 iunlockput\(dp\);) 104.8443 Tj +0 -151.8938 Td (4813 ilock\(ip\);) 83.0018 Tj -0 -161.387 Td +0 -161.3871 Td (4814 if\(ip->type != type || ip->major != major || ip->mino\ -r != minor\){) 323.27 Tj -0 -170.88 Td -(4815 iunlockput\(ip\);) 113.581 Tj -0 -180.374 Td +r != minor\){) 323.2701 Tj +0 -170.8805 Td +(4815 iunlockput\(ip\);) 113.5814 Tj +0 -180.3739 Td (4816 return 0;) 87.3703 Tj -0 -189.867 Td +0 -189.8672 Td (4817 }) 43.6851 Tj -0 -199.361 Td +0 -199.3606 Td (4818 return ip;) 83.0018 Tj -0 -208.854 Td +0 -208.8539 Td (4819 }) 34.9481 Tj -0 -218.347 Td +0 -218.3473 Td (4820 ) 21.8426 Tj -0 -227.841 Td -(4821 if\(\(ip = ialloc\(dp->dev, type\)\) == 0\){) 196.583 Tj +0 -227.8407 Td +(4821 if\(\(ip = ialloc\(dp->dev, type\)\) == 0\){) 196.5831 Tj 0 -237.334 Td -(4822 iunlockput\(dp\);) 104.844 Tj -0 -246.827 Td +(4822 iunlockput\(dp\);) 104.8443 Tj +0 -246.8274 Td (4823 return 0;) 78.6333 Tj -0 -256.321 Td +0 -256.3207 Td (4824 }) 34.9481 Tj -0 -265.814 Td +0 -265.8141 Td (4825 ilock\(ip\);) 74.2647 Tj -0 -275.307 Td -(4826 ip->major = major;) 109.213 Tj -0 -284.801 Td -(4827 ip->minor = minor;) 109.213 Tj -0 -294.294 Td +0 -275.3075 Td +(4826 ip->major = major;) 109.2129 Tj +0 -284.8008 Td +(4827 ip->minor = minor;) 109.2129 Tj +0 -294.2942 Td (4828 ip->nlink = 1;) 91.7388 Tj -0 -303.788 Td +0 -303.7875 Td (4829 iupdate\(ip\);) 83.0018 Tj -0 -313.281 Td +0 -313.2809 Td (4830 ) 21.8426 Tj -0 -322.774 Td -(4831 if\(dirlink\(dp, name, ip->inum\) < 0\){) 187.846 Tj -0 -332.268 Td -(4832 ip->nlink = 0;) 100.476 Tj +0 -322.7743 Td +(4831 if\(dirlink\(dp, name, ip->inum\) < 0\){) 187.8461 Tj +0 -332.2676 Td +(4832 ip->nlink = 0;) 100.4758 Tj 0 -341.761 Td -(4833 iunlockput\(ip\);) 104.844 Tj -0 -351.254 Td -(4834 iunlockput\(dp\);) 104.844 Tj -0 -360.748 Td +(4833 iunlockput\(ip\);) 104.8443 Tj +0 -351.2543 Td +(4834 iunlockput\(dp\);) 104.8443 Tj +0 -360.7477 Td (4835 return 0;) 78.6333 Tj -0 -370.241 Td +0 -370.2411 Td (4836 }) 34.9481 Tj -0 -379.734 Td +0 -379.7344 Td (4837 ) 21.8426 Tj -0 -389.228 Td -(4838 if\(type == T_DIR\){ // Create . and .. entries.) 235.9 Tj -0 -398.721 Td -(4839 dp->nlink++; // for "..") 148.529 Tj -0 -408.214 Td +0 -389.2278 Td +(4838 if\(type == T_DIR\){ // Create . and .. entries.) 235.8998 Tj +0 -398.7211 Td +(4839 dp->nlink++; // for "..") 148.5295 Tj +0 -408.2145 Td (4840 iupdate\(dp\);) 91.7388 Tj -0 -417.708 Td -(4841 // No ip->nlink++ for ".": avoid cyclic ref count.) 257.742 Tj -0 -427.201 Td +0 -417.7079 Td +(4841 // No ip->nlink++ for ".": avoid cyclic ref count.) 257.7424 Tj +0 -427.2012 Td (4842 if\(dirlink\(ip, ".", ip->inum\) < 0 || dirlink\(ip, "\ -..", dp->inum\) < 0\)) 340.744 Tj -0 -436.695 Td -(4843 panic\("create dots"\);) 139.792 Tj -0 -446.188 Td +..", dp->inum\) < 0\)) 340.7441 Tj +0 -436.6946 Td +(4843 panic\("create dots"\);) 139.7925 Tj +0 -446.1879 Td (4844 }) 34.9481 Tj -0 -455.681 Td +0 -455.6813 Td (4845 iunlockput\(dp\);) 96.1073 Tj -0 -465.175 Td +0 -465.1747 Td (4846 return ip;) 74.2647 Tj 0 -474.668 Td (4847 }) 26.2111 Tj -0 -484.161 Td +0 -484.1614 Td (4848 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4849 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 48) 34.9481 Tj Q Q @@ -16825,10 +16811,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 7) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 7) 174.7406 Tj 0 -28.4801 Td (4850 int) 34.9481 Tj 0 -37.9735 Td @@ -16842,97 +16828,97 @@ q 0 -75.9469 Td (4855 struct file *f;) 96.1073 Tj 0 -85.4403 Td -(4856 struct inode *ip;) 104.844 Tj +(4856 struct inode *ip;) 104.8443 Tj 0 -94.9336 Td (4857 ) 21.8426 Tj 0 -104.427 Td -(4858 if\(argstr\(0, &path\) < 0 || argint\(1, &omode\) < 0\)) 244.637 Tj -0 -113.92 Td +(4858 if\(argstr\(0, &path\) < 0 || argint\(1, &omode\) < 0\)) 244.6368 Tj +0 -113.9203 Td (4859 return -1;) 83.0018 Tj -0 -123.414 Td +0 -123.4137 Td (4860 ) 21.8426 Tj -0 -132.907 Td -(4861 if\(omode & O_CREATE\){) 122.318 Tj -0 -142.4 Td -(4862 if\(\(ip = create\(path, 1, T_FILE, 0, 0\)\) == 0\)) 235.9 Tj -0 -151.894 Td +0 -132.9071 Td +(4861 if\(omode & O_CREATE\){) 122.3184 Tj +0 -142.4004 Td +(4862 if\(\(ip = create\(path, 1, T_FILE, 0, 0\)\) == 0\)) 235.8998 Tj +0 -151.8938 Td (4863 return -1;) 91.7388 Tj -0 -161.387 Td +0 -161.3871 Td (4864 } else {) 65.5277 Tj -0 -170.88 Td -(4865 if\(\(ip = namei\(path\)\) == 0\)) 157.267 Tj -0 -180.374 Td +0 -170.8805 Td +(4865 if\(\(ip = namei\(path\)\) == 0\)) 157.2665 Tj +0 -180.3739 Td (4866 return -1;) 91.7388 Tj -0 -189.867 Td +0 -189.8672 Td (4867 ilock\(ip\);) 83.0018 Tj -0 -199.361 Td +0 -199.3606 Td (4868 if\(ip->type == T_DIR && \(omode & \(O_RDWR|O_WRONLY\)\ -\)\){) 270.848 Tj -0 -208.854 Td -(4869 iunlockput\(ip\);) 113.581 Tj -0 -218.347 Td +\)\){) 270.8479 Tj +0 -208.8539 Td +(4869 iunlockput\(ip\);) 113.5814 Tj +0 -218.3473 Td (4870 return -1;) 91.7388 Tj -0 -227.841 Td +0 -227.8407 Td (4871 }) 43.6851 Tj 0 -237.334 Td (4872 }) 34.9481 Tj -0 -246.827 Td +0 -246.8274 Td (4873 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (4874 if\(\(f = filealloc\(\)\) == 0 || \(fd = fdalloc\(f\)\) \ -< 0\){) 257.742 Tj -0 -265.814 Td +< 0\){) 257.7424 Tj +0 -265.8141 Td (4875 if\(f\)) 61.1592 Tj -0 -275.307 Td -(4876 fileclose\(f\);) 104.844 Tj -0 -284.801 Td -(4877 iunlockput\(ip\);) 104.844 Tj -0 -294.294 Td +0 -275.3075 Td +(4876 fileclose\(f\);) 104.8443 Tj +0 -284.8008 Td +(4877 iunlockput\(ip\);) 104.8443 Tj +0 -294.2942 Td (4878 return -1;) 83.0018 Tj -0 -303.788 Td +0 -303.7875 Td (4879 }) 34.9481 Tj -0 -313.281 Td +0 -313.2809 Td (4880 iunlock\(ip\);) 83.0018 Tj -0 -322.774 Td +0 -322.7743 Td (4881 ) 21.8426 Tj -0 -332.268 Td -(4882 f->type = FD_INODE;) 113.581 Tj +0 -332.2676 Td +(4882 f->type = FD_INODE;) 113.5814 Tj 0 -341.761 Td (4883 f->ip = ip;) 78.6333 Tj -0 -351.254 Td +0 -351.2543 Td (4884 f->off = 0;) 78.6333 Tj -0 -360.748 Td -(4885 f->readable = !\(omode & O_WRONLY\);) 179.109 Tj -0 -370.241 Td +0 -360.7477 Td +(4885 f->readable = !\(omode & O_WRONLY\);) 179.1091 Tj +0 -370.2411 Td (4886 f->writable = \(omode & O_WRONLY\) || \(omode & O_RDWR\)\ -;) 262.111 Tj -0 -379.734 Td +;) 262.1109 Tj +0 -379.7344 Td (4887 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (4888 return fd;) 74.2647 Tj -0 -398.721 Td +0 -398.7211 Td (4889 }) 26.2111 Tj -0 -408.214 Td +0 -408.2145 Td (4890 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (4891 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (4892 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (4893 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (4894 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (4895 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (4896 ) 21.8426 Tj 0 -474.668 Td (4897 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4898 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4899 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 48) 34.9481 Tj Q Q @@ -16961,8 +16947,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -16977,10 +16962,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 8) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 8) 174.7406 Tj 0 -28.4801 Td (4900 int) 34.9481 Tj 0 -37.9735 Td @@ -16988,102 +16973,102 @@ q 0 -47.4668 Td (4902 {) 26.2111 Tj 0 -56.9602 Td -(4903 struct inode *ip;) 104.844 Tj +(4903 struct inode *ip;) 104.8443 Tj 0 -66.4535 Td (4904 char *path;) 78.6333 Tj 0 -75.9469 Td (4905 int len;) 65.5277 Tj 0 -85.4403 Td -(4906 int major, minor;) 104.844 Tj +(4906 int major, minor;) 104.8443 Tj 0 -94.9336 Td (4907 ) 21.8426 Tj 0 -104.427 Td -(4908 if\(\(len=argstr\(0, &path\)\) < 0 ||) 170.372 Tj -0 -113.92 Td -(4909 argint\(1, &major\) < 0 ||) 148.529 Tj -0 -123.414 Td -(4910 argint\(2, &minor\) < 0 ||) 148.529 Tj -0 -132.907 Td -(4911 \(ip = create\(path, 0, T_DEV, major, minor\)\) == 0\)) 257.742 Tj -0 -142.4 Td +(4908 if\(\(len=argstr\(0, &path\)\) < 0 ||) 170.3721 Tj +0 -113.9203 Td +(4909 argint\(1, &major\) < 0 ||) 148.5295 Tj +0 -123.4137 Td +(4910 argint\(2, &minor\) < 0 ||) 148.5295 Tj +0 -132.9071 Td +(4911 \(ip = create\(path, 0, T_DEV, major, minor\)\) == 0\)) 257.7424 Tj +0 -142.4004 Td (4912 return -1;) 83.0018 Tj -0 -151.894 Td +0 -151.8938 Td (4913 iunlockput\(ip\);) 96.1073 Tj -0 -161.387 Td +0 -161.3871 Td (4914 return 0;) 69.8962 Tj -0 -170.88 Td +0 -170.8805 Td (4915 }) 26.2111 Tj -0 -180.374 Td +0 -180.3739 Td (4916 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (4917 int) 34.9481 Tj -0 -199.361 Td +0 -199.3606 Td (4918 sys_mkdir\(void\)) 87.3703 Tj -0 -208.854 Td +0 -208.8539 Td (4919 {) 26.2111 Tj -0 -218.347 Td +0 -218.3473 Td (4920 char *path;) 78.6333 Tj -0 -227.841 Td -(4921 struct inode *ip;) 104.844 Tj +0 -227.8407 Td +(4921 struct inode *ip;) 104.8443 Tj 0 -237.334 Td (4922 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (4923 if\(argstr\(0, &path\) < 0 || \(ip = create\(path, 0, T_\ -DIR, 0, 0\)\) == 0\)) 327.639 Tj -0 -256.321 Td +DIR, 0, 0\)\) == 0\)) 327.6386 Tj +0 -256.3207 Td (4924 return -1;) 83.0018 Tj -0 -265.814 Td +0 -265.8141 Td (4925 iunlockput\(ip\);) 96.1073 Tj -0 -275.307 Td +0 -275.3075 Td (4926 return 0;) 69.8962 Tj -0 -284.801 Td +0 -284.8008 Td (4927 }) 26.2111 Tj -0 -294.294 Td +0 -294.2942 Td (4928 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (4929 int) 34.9481 Tj -0 -313.281 Td +0 -313.2809 Td (4930 sys_chdir\(void\)) 87.3703 Tj -0 -322.774 Td +0 -322.7743 Td (4931 {) 26.2111 Tj -0 -332.268 Td +0 -332.2676 Td (4932 char *path;) 78.6333 Tj 0 -341.761 Td -(4933 struct inode *ip;) 104.844 Tj -0 -351.254 Td +(4933 struct inode *ip;) 104.8443 Tj +0 -351.2543 Td (4934 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (4935 if\(argstr\(0, &path\) < 0 || \(ip = namei\(path\)\) == \ -0\)) 253.374 Tj -0 -370.241 Td +0\)) 253.3738 Tj +0 -370.2411 Td (4936 return -1;) 83.0018 Tj -0 -379.734 Td +0 -379.7344 Td (4937 ilock\(ip\);) 74.2647 Tj -0 -389.228 Td -(4938 if\(ip->type != T_DIR\){) 126.687 Tj -0 -398.721 Td -(4939 iunlockput\(ip\);) 104.844 Tj -0 -408.214 Td +0 -389.2278 Td +(4938 if\(ip->type != T_DIR\){) 126.6869 Tj +0 -398.7211 Td +(4939 iunlockput\(ip\);) 104.8443 Tj +0 -408.2145 Td (4940 return -1;) 83.0018 Tj -0 -417.708 Td +0 -417.7079 Td (4941 }) 34.9481 Tj -0 -427.201 Td +0 -427.2012 Td (4942 iunlock\(ip\);) 83.0018 Tj -0 -436.695 Td +0 -436.6946 Td (4943 iput\(cp->cwd\);) 91.7388 Tj -0 -446.188 Td +0 -446.1879 Td (4944 cp->cwd = ip;) 87.3703 Tj -0 -455.681 Td +0 -455.6813 Td (4945 return 0;) 69.8962 Tj -0 -465.175 Td +0 -465.1747 Td (4946 }) 26.2111 Tj 0 -474.668 Td (4947 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (4948 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4949 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 49) 34.9481 Tj Q Q @@ -17098,10 +17083,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sysfile.c Page 9) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sysfile.c Page 9) 174.7406 Tj 0 -28.4801 Td (4950 int) 34.9481 Tj 0 -37.9735 Td @@ -17109,102 +17094,102 @@ q 0 -47.4668 Td (4952 {) 26.2111 Tj 0 -56.9602 Td -(4953 char *path, *argv[20];) 126.687 Tj +(4953 char *path, *argv[20];) 126.6869 Tj 0 -66.4535 Td (4954 int i;) 56.7907 Tj 0 -75.9469 Td -(4955 uint uargv, uarg;) 104.844 Tj +(4955 uint uargv, uarg;) 104.8443 Tj 0 -85.4403 Td (4956 ) 21.8426 Tj 0 -94.9336 Td (4957 if\(argstr\(0, &path\) < 0 || argint\(1, \(int*\)&uargv\)\ - < 0\)) 270.848 Tj + < 0\)) 270.8479 Tj 0 -104.427 Td (4958 return -1;) 83.0018 Tj -0 -113.92 Td +0 -113.9203 Td (4959 memset\(argv, 0, sizeof\(argv\)\);) 161.635 Tj -0 -123.414 Td +0 -123.4137 Td (4960 for\(i=0;; i++\){) 96.1073 Tj -0 -132.907 Td -(4961 if\(i >= NELEM\(argv\)\)) 126.687 Tj -0 -142.4 Td +0 -132.9071 Td +(4961 if\(i >= NELEM\(argv\)\)) 126.6869 Tj +0 -142.4004 Td (4962 return -1;) 91.7388 Tj -0 -151.894 Td -(4963 if\(fetchint\(cp, uargv+4*i, \(int*\)&uarg\) < 0\)) 231.531 Tj -0 -161.387 Td +0 -151.8938 Td +(4963 if\(fetchint\(cp, uargv+4*i, \(int*\)&uarg\) < 0\)) 231.5313 Tj +0 -161.3871 Td (4964 return -1;) 91.7388 Tj -0 -170.88 Td -(4965 if\(uarg == 0\){) 100.476 Tj -0 -180.374 Td -(4966 argv[i] = 0;) 100.476 Tj -0 -189.867 Td +0 -170.8805 Td +(4965 if\(uarg == 0\){) 100.4758 Tj +0 -180.3739 Td +(4966 argv[i] = 0;) 100.4758 Tj +0 -189.8672 Td (4967 break;) 74.2647 Tj -0 -199.361 Td +0 -199.3606 Td (4968 }) 43.6851 Tj -0 -208.854 Td -(4969 if\(fetchstr\(cp, uarg, &argv[i]\) < 0\)) 196.583 Tj -0 -218.347 Td +0 -208.8539 Td +(4969 if\(fetchstr\(cp, uarg, &argv[i]\) < 0\)) 196.5831 Tj +0 -218.3473 Td (4970 return -1;) 91.7388 Tj -0 -227.841 Td +0 -227.8407 Td (4971 }) 34.9481 Tj 0 -237.334 Td -(4972 return exec\(path, argv\);) 135.424 Tj -0 -246.827 Td +(4972 return exec\(path, argv\);) 135.4239 Tj +0 -246.8274 Td (4973 }) 26.2111 Tj -0 -256.321 Td +0 -256.3207 Td (4974 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (4975 int) 34.9481 Tj -0 -275.307 Td +0 -275.3075 Td (4976 sys_pipe\(void\)) 83.0018 Tj -0 -284.801 Td +0 -284.8008 Td (4977 {) 26.2111 Tj -0 -294.294 Td +0 -294.2942 Td (4978 int *fd;) 65.5277 Tj -0 -303.788 Td -(4979 struct file *rf, *wf;) 122.318 Tj -0 -313.281 Td +0 -303.7875 Td +(4979 struct file *rf, *wf;) 122.3184 Tj +0 -313.2809 Td (4980 int fd0, fd1;) 87.3703 Tj -0 -322.774 Td +0 -322.7743 Td (4981 ) 21.8426 Tj -0 -332.268 Td -(4982 if\(argptr\(0, \(void*\)&fd, 2*sizeof\(fd[0]\)\) < 0\)) 231.531 Tj +0 -332.2676 Td +(4982 if\(argptr\(0, \(void*\)&fd, 2*sizeof\(fd[0]\)\) < 0\)) 231.5313 Tj 0 -341.761 Td (4983 return -1;) 83.0018 Tj -0 -351.254 Td -(4984 if\(pipealloc\(&rf, &wf\) < 0\)) 148.529 Tj -0 -360.748 Td +0 -351.2543 Td +(4984 if\(pipealloc\(&rf, &wf\) < 0\)) 148.5295 Tj +0 -360.7477 Td (4985 return -1;) 83.0018 Tj -0 -370.241 Td +0 -370.2411 Td (4986 fd0 = -1;) 69.8962 Tj -0 -379.734 Td +0 -379.7344 Td (4987 if\(\(fd0 = fdalloc\(rf\)\) < 0 || \(fd1 = fdalloc\(wf\)\ -\) < 0\){) 270.848 Tj -0 -389.228 Td +\) < 0\){) 270.8479 Tj +0 -389.2278 Td (4988 if\(fd0 >= 0\)) 91.7388 Tj -0 -398.721 Td -(4989 cp->ofile[fd0] = 0;) 131.055 Tj -0 -408.214 Td -(4990 fileclose\(rf\);) 100.476 Tj -0 -417.708 Td -(4991 fileclose\(wf\);) 100.476 Tj -0 -427.201 Td +0 -398.7211 Td +(4989 cp->ofile[fd0] = 0;) 131.0554 Tj +0 -408.2145 Td +(4990 fileclose\(rf\);) 100.4758 Tj +0 -417.7079 Td +(4991 fileclose\(wf\);) 100.4758 Tj +0 -427.2012 Td (4992 return -1;) 83.0018 Tj -0 -436.695 Td +0 -436.6946 Td (4993 }) 34.9481 Tj -0 -446.188 Td +0 -446.1879 Td (4994 fd[0] = fd0;) 83.0018 Tj -0 -455.681 Td +0 -455.6813 Td (4995 fd[1] = fd1;) 83.0018 Tj -0 -465.175 Td +0 -465.1747 Td (4996 return 0;) 69.8962 Tj 0 -474.668 Td (4997 }) 26.2111 Tj -0 -484.161 Td +0 -484.1614 Td (4998 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (4999 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 49) 34.9481 Tj Q Q @@ -17233,8 +17218,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -17249,14 +17233,14 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/exec.c Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/exec.c Page 1) 161.635 Tj 0 -28.4801 Td -(5000 #include "types.h") 100.476 Tj +(5000 #include "types.h") 100.4758 Tj 0 -37.9735 Td -(5001 #include "param.h") 100.476 Tj +(5001 #include "param.h") 100.4758 Tj 0 -47.4668 Td (5002 #include "mmu.h") 91.7388 Tj 0 -56.9602 Td @@ -17271,92 +17255,92 @@ q (5007 ) 21.8426 Tj 0 -104.427 Td (5008 int) 34.9481 Tj -0 -113.92 Td -(5009 exec\(char *path, char **argv\)) 148.529 Tj -0 -123.414 Td +0 -113.9203 Td +(5009 exec\(char *path, char **argv\)) 148.5295 Tj +0 -123.4137 Td (5010 {) 26.2111 Tj -0 -132.907 Td -(5011 char *mem, *s, *last;) 122.318 Tj -0 -142.4 Td +0 -132.9071 Td +(5011 char *mem, *s, *last;) 122.3184 Tj +0 -142.4004 Td (5012 int i, argc, arglen, len, off;) 161.635 Tj -0 -151.894 Td -(5013 uint sz, sp, argp;) 109.213 Tj -0 -161.387 Td -(5014 struct elfhdr elf;) 109.213 Tj -0 -170.88 Td -(5015 struct inode *ip;) 104.844 Tj -0 -180.374 Td -(5016 struct proghdr ph;) 109.213 Tj -0 -189.867 Td +0 -151.8938 Td +(5013 uint sz, sp, argp;) 109.2129 Tj +0 -161.3871 Td +(5014 struct elfhdr elf;) 109.2129 Tj +0 -170.8805 Td +(5015 struct inode *ip;) 104.8443 Tj +0 -180.3739 Td +(5016 struct proghdr ph;) 109.2129 Tj +0 -189.8672 Td (5017 ) 21.8426 Tj -0 -199.361 Td -(5018 if\(\(ip = namei\(path\)\) == 0\)) 148.529 Tj -0 -208.854 Td +0 -199.3606 Td +(5018 if\(\(ip = namei\(path\)\) == 0\)) 148.5295 Tj +0 -208.8539 Td (5019 return -1;) 83.0018 Tj -0 -218.347 Td +0 -218.3473 Td (5020 ilock\(ip\);) 74.2647 Tj -0 -227.841 Td +0 -227.8407 Td (5021 ) 21.8426 Tj 0 -237.334 Td -(5022 // Compute memory size of new process.) 196.583 Tj -0 -246.827 Td +(5022 // Compute memory size of new process.) 196.5831 Tj +0 -246.8274 Td (5023 mem = 0;) 65.5277 Tj -0 -256.321 Td +0 -256.3207 Td (5024 sz = 0;) 61.1592 Tj -0 -265.814 Td +0 -265.8141 Td (5025 ) 21.8426 Tj -0 -275.307 Td -(5026 // Program segments.) 117.95 Tj -0 -284.801 Td +0 -275.3075 Td +(5026 // Program segments.) 117.9499 Tj +0 -284.8008 Td (5027 if\(readi\(ip, \(char*\)&elf, 0, sizeof\(elf\)\) < sizeo\ -f\(elf\)\)) 275.216 Tj -0 -294.294 Td +f\(elf\)\)) 275.2164 Tj +0 -294.2942 Td (5028 goto bad;) 78.6333 Tj -0 -303.788 Td +0 -303.7875 Td (5029 if\(elf.magic != ELF_MAGIC\)) 144.161 Tj -0 -313.281 Td +0 -313.2809 Td (5030 goto bad;) 78.6333 Tj -0 -322.774 Td +0 -322.7743 Td (5031 for\(i=0, off=elf.phoff; i sz\)) 148.529 Tj -0 -161.387 Td +0 -151.8938 Td +(5063 if\(ph.va + ph.memsz > sz\)) 148.5295 Tj +0 -161.3871 Td (5064 goto bad;) 87.3703 Tj -0 -170.88 Td +0 -170.8805 Td (5065 if\(readi\(ip, mem + ph.va, ph.offset, ph.filesz\) != \ ph.filesz\)) 305.796 Tj -0 -180.374 Td +0 -180.3739 Td (5066 goto bad;) 87.3703 Tj -0 -189.867 Td +0 -189.8672 Td (5067 memset\(mem + ph.va + ph.filesz, 0, ph.memsz - ph.file\ sz\);) 288.322 Tj -0 -199.361 Td +0 -199.3606 Td (5068 }) 34.9481 Tj -0 -208.854 Td +0 -208.8539 Td (5069 iunlockput\(ip\);) 96.1073 Tj -0 -218.347 Td +0 -218.3473 Td (5070 ) 21.8426 Tj -0 -227.841 Td -(5071 // Initialize stack.) 117.95 Tj +0 -227.8407 Td +(5071 // Initialize stack.) 117.9499 Tj 0 -237.334 Td (5072 sp = sz;) 65.5277 Tj -0 -246.827 Td -(5073 argp = sz - arglen - 4*\(argc+1\);) 170.372 Tj -0 -256.321 Td +0 -246.8274 Td +(5073 argp = sz - arglen - 4*\(argc+1\);) 170.3721 Tj +0 -256.3207 Td (5074 ) 21.8426 Tj -0 -265.814 Td -(5075 // Copy argv strings and pointers to stack.) 218.426 Tj -0 -275.307 Td -(5076 *\(uint*\)\(mem+argp + 4*argc\) = 0; // argv[argc]) 235.9 Tj -0 -284.801 Td -(5077 for\(i=argc-1; i>=0; i--\){) 139.792 Tj -0 -294.294 Td +0 -265.8141 Td +(5075 // Copy argv strings and pointers to stack.) 218.4257 Tj +0 -275.3075 Td +(5076 *\(uint*\)\(mem+argp + 4*argc\) = 0; // argv[argc]) 235.8998 Tj +0 -284.8008 Td +(5077 for\(i=argc-1; i>=0; i--\){) 139.7925 Tj +0 -294.2942 Td (5078 len = strlen\(argv[i]\) + 1;) 152.898 Tj -0 -303.788 Td +0 -303.7875 Td (5079 sp -= len;) 83.0018 Tj -0 -313.281 Td -(5080 memmove\(mem+sp, argv[i], len\);) 170.372 Tj -0 -322.774 Td -(5081 *\(uint*\)\(mem+argp + 4*i\) = sp; // argv[i]) 222.794 Tj -0 -332.268 Td +0 -313.2809 Td +(5080 memmove\(mem+sp, argv[i], len\);) 170.3721 Tj +0 -322.7743 Td +(5081 *\(uint*\)\(mem+argp + 4*i\) = sp; // argv[i]) 222.7942 Tj +0 -332.2676 Td (5082 }) 34.9481 Tj 0 -341.761 Td (5083 ) 21.8426 Tj -0 -351.254 Td -(5084 // Stack frame for main\(argc, argv\), below arguments.) 262.111 Tj -0 -360.748 Td +0 -351.2543 Td +(5084 // Stack frame for main\(argc, argv\), below arguments.) 262.1109 Tj +0 -360.7477 Td (5085 sp = argp;) 74.2647 Tj -0 -370.241 Td +0 -370.2411 Td (5086 sp -= 4;) 65.5277 Tj -0 -379.734 Td -(5087 *\(uint*\)\(mem+sp\) = argp;) 135.424 Tj -0 -389.228 Td +0 -379.7344 Td +(5087 *\(uint*\)\(mem+sp\) = argp;) 135.4239 Tj +0 -389.2278 Td (5088 sp -= 4;) 65.5277 Tj -0 -398.721 Td -(5089 *\(uint*\)\(mem+sp\) = argc;) 135.424 Tj -0 -408.214 Td +0 -398.7211 Td +(5089 *\(uint*\)\(mem+sp\) = argc;) 135.4239 Tj +0 -408.2145 Td (5090 sp -= 4;) 65.5277 Tj -0 -417.708 Td -(5091 *\(uint*\)\(mem+sp\) = 0xffffffff; // fake return pc) 249.005 Tj -0 -427.201 Td +0 -417.7079 Td +(5091 *\(uint*\)\(mem+sp\) = 0xffffffff; // fake return pc) 249.0053 Tj +0 -427.2012 Td (5092 ) 21.8426 Tj -0 -436.695 Td -(5093 // Save program name for debugging.) 183.478 Tj -0 -446.188 Td -(5094 for\(last=s=path; *s; s++\)) 139.792 Tj -0 -455.681 Td +0 -436.6946 Td +(5093 // Save program name for debugging.) 183.4776 Tj +0 -446.1879 Td +(5094 for\(last=s=path; *s; s++\)) 139.7925 Tj +0 -455.6813 Td (5095 if\(*s == '/'\)) 96.1073 Tj -0 -465.175 Td +0 -465.1747 Td (5096 last = s+1;) 96.1073 Tj 0 -474.668 Td -(5097 safestrcpy\(cp->name, last, sizeof\(cp->name\)\);) 227.163 Tj -0 -484.161 Td +(5097 safestrcpy\(cp->name, last, sizeof\(cp->name\)\);) 227.1628 Tj +0 -484.1614 Td (5098 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5099 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 50) 34.9481 Tj Q Q @@ -17508,8 +17492,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -17524,111 +17507,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/exec.c Page 3) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/exec.c Page 3) 161.635 Tj 0 -28.4801 Td -(5100 // Commit to the new image.) 148.529 Tj +(5100 // Commit to the new image.) 148.5295 Tj 0 -37.9735 Td -(5101 kfree\(cp->mem, cp->sz\);) 131.055 Tj +(5101 kfree\(cp->mem, cp->sz\);) 131.0554 Tj 0 -47.4668 Td (5102 cp->mem = mem;) 91.7388 Tj 0 -56.9602 Td (5103 cp->sz = sz;) 83.0018 Tj 0 -66.4535 Td -(5104 cp->tf->eip = elf.entry; // main) 174.741 Tj +(5104 cp->tf->eip = elf.entry; // main) 174.7406 Tj 0 -75.9469 Td -(5105 cp->tf->esp = sp;) 104.844 Tj +(5105 cp->tf->esp = sp;) 104.8443 Tj 0 -85.4403 Td (5106 setupsegs\(cp\);) 91.7388 Tj 0 -94.9336 Td (5107 return 0;) 69.8962 Tj 0 -104.427 Td (5108 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (5109 bad:) 43.6851 Tj -0 -123.414 Td +0 -123.4137 Td (5110 if\(mem\)) 61.1592 Tj -0 -132.907 Td -(5111 kfree\(mem, sz\);) 104.844 Tj -0 -142.4 Td +0 -132.9071 Td +(5111 kfree\(mem, sz\);) 104.8443 Tj +0 -142.4004 Td (5112 iunlockput\(ip\);) 96.1073 Tj -0 -151.894 Td +0 -151.8938 Td (5113 return -1;) 74.2647 Tj -0 -161.387 Td +0 -161.3871 Td (5114 }) 26.2111 Tj -0 -170.88 Td +0 -170.8805 Td (5115 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (5116 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (5117 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (5118 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (5119 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (5120 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (5121 ) 21.8426 Tj 0 -237.334 Td (5122 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (5123 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (5124 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (5125 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (5126 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (5127 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (5128 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (5129 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (5130 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (5131 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (5132 ) 21.8426 Tj 0 -341.761 Td (5133 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (5134 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (5135 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (5136 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (5137 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (5138 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (5139 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (5140 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (5141 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (5142 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (5143 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (5144 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (5145 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (5146 ) 21.8426 Tj 0 -474.668 Td (5147 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5148 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5149 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 51) 34.9481 Tj Q Q @@ -17643,16 +17626,16 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/pipe.c Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/pipe.c Page 1) 161.635 Tj 0 -28.4801 Td -(5150 #include "types.h") 100.476 Tj +(5150 #include "types.h") 100.4758 Tj 0 -37.9735 Td (5151 #include "defs.h") 96.1073 Tj 0 -47.4668 Td -(5152 #include "param.h") 100.476 Tj +(5152 #include "param.h") 100.4758 Tj 0 -56.9602 Td (5153 #include "mmu.h") 91.7388 Tj 0 -66.4535 Td @@ -17660,95 +17643,95 @@ q 0 -75.9469 Td (5155 #include "file.h") 96.1073 Tj 0 -85.4403 Td -(5156 #include "spinlock.h") 113.581 Tj +(5156 #include "spinlock.h") 113.5814 Tj 0 -94.9336 Td (5157 ) 21.8426 Tj 0 -104.427 Td -(5158 #define PIPESIZE 512) 109.213 Tj -0 -113.92 Td +(5158 #define PIPESIZE 512) 109.2129 Tj +0 -113.9203 Td (5159 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (5160 struct pipe {) 78.6333 Tj -0 -132.907 Td -(5161 int readopen; // read fd is still open) 205.32 Tj -0 -142.4 Td -(5162 int writeopen; // write fd is still open) 209.689 Tj -0 -151.894 Td -(5163 int writep; // next index to write) 196.583 Tj -0 -161.387 Td -(5164 int readp; // next index to read) 192.215 Tj -0 -170.88 Td -(5165 struct spinlock lock;) 122.318 Tj -0 -180.374 Td -(5166 char data[PIPESIZE];) 117.95 Tj -0 -189.867 Td +0 -132.9071 Td +(5161 int readopen; // read fd is still open) 205.3202 Tj +0 -142.4004 Td +(5162 int writeopen; // write fd is still open) 209.6887 Tj +0 -151.8938 Td +(5163 uint writep; // next index to write) 196.5831 Tj +0 -161.3871 Td +(5164 uint readp; // next index to read) 192.2146 Tj +0 -170.8805 Td +(5165 struct spinlock lock;) 122.3184 Tj +0 -180.3739 Td +(5166 char data[PIPESIZE];) 117.9499 Tj +0 -189.8672 Td (5167 };) 30.5796 Tj -0 -199.361 Td +0 -199.3606 Td (5168 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (5169 int) 34.9481 Tj -0 -218.347 Td -(5170 pipealloc\(struct file **f0, struct file **f1\)) 218.426 Tj -0 -227.841 Td +0 -218.3473 Td +(5170 pipealloc\(struct file **f0, struct file **f1\)) 218.4257 Tj +0 -227.8407 Td (5171 {) 26.2111 Tj 0 -237.334 Td (5172 struct pipe *p;) 96.1073 Tj -0 -246.827 Td +0 -246.8274 Td (5173 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (5174 p = 0;) 56.7907 Tj -0 -265.814 Td +0 -265.8141 Td (5175 *f0 = *f1 = 0;) 91.7388 Tj -0 -275.307 Td +0 -275.3075 Td (5176 if\(\(*f0 = filealloc\(\)\) == 0 || \(*f1 = filealloc\(\)\ -\) == 0\)) 275.216 Tj -0 -284.801 Td +\) == 0\)) 275.2164 Tj +0 -284.8008 Td (5177 goto bad;) 78.6333 Tj -0 -294.294 Td -(5178 if\(\(p = \(struct pipe*\)kalloc\(PAGE\)\) == 0\)) 209.689 Tj -0 -303.788 Td +0 -294.2942 Td +(5178 if\(\(p = \(struct pipe*\)kalloc\(PAGE\)\) == 0\)) 209.6887 Tj +0 -303.7875 Td (5179 goto bad;) 78.6333 Tj -0 -313.281 Td -(5180 p->readopen = 1;) 100.476 Tj -0 -322.774 Td -(5181 p->writeopen = 1;) 104.844 Tj -0 -332.268 Td +0 -313.2809 Td +(5180 p->readopen = 1;) 100.4758 Tj +0 -322.7743 Td +(5181 p->writeopen = 1;) 104.8443 Tj +0 -332.2676 Td (5182 p->writep = 0;) 91.7388 Tj 0 -341.761 Td (5183 p->readp = 0;) 87.3703 Tj -0 -351.254 Td -(5184 initlock\(&p->lock, "pipe"\);) 148.529 Tj -0 -360.748 Td -(5185 \(*f0\)->type = FD_PIPE;) 126.687 Tj -0 -370.241 Td -(5186 \(*f0\)->readable = 1;) 117.95 Tj -0 -379.734 Td -(5187 \(*f0\)->writable = 0;) 117.95 Tj -0 -389.228 Td -(5188 \(*f0\)->pipe = p;) 100.476 Tj -0 -398.721 Td -(5189 \(*f1\)->type = FD_PIPE;) 126.687 Tj -0 -408.214 Td -(5190 \(*f1\)->readable = 0;) 117.95 Tj -0 -417.708 Td -(5191 \(*f1\)->writable = 1;) 117.95 Tj -0 -427.201 Td -(5192 \(*f1\)->pipe = p;) 100.476 Tj -0 -436.695 Td +0 -351.2543 Td +(5184 initlock\(&p->lock, "pipe"\);) 148.5295 Tj +0 -360.7477 Td +(5185 \(*f0\)->type = FD_PIPE;) 126.6869 Tj +0 -370.2411 Td +(5186 \(*f0\)->readable = 1;) 117.9499 Tj +0 -379.7344 Td +(5187 \(*f0\)->writable = 0;) 117.9499 Tj +0 -389.2278 Td +(5188 \(*f0\)->pipe = p;) 100.4758 Tj +0 -398.7211 Td +(5189 \(*f1\)->type = FD_PIPE;) 126.6869 Tj +0 -408.2145 Td +(5190 \(*f1\)->readable = 0;) 117.9499 Tj +0 -417.7079 Td +(5191 \(*f1\)->writable = 1;) 117.9499 Tj +0 -427.2012 Td +(5192 \(*f1\)->pipe = p;) 100.4758 Tj +0 -436.6946 Td (5193 return 0;) 69.8962 Tj -0 -446.188 Td +0 -446.1879 Td (5194 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (5195 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (5196 ) 21.8426 Tj 0 -474.668 Td (5197 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5198 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5199 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 51) 34.9481 Tj Q Q @@ -17777,8 +17760,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -17793,111 +17775,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/pipe.c Page 2) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/pipe.c Page 2) 161.635 Tj 0 -28.4801 Td (5200 bad:) 43.6851 Tj 0 -37.9735 Td (5201 if\(p\)) 52.4222 Tj 0 -47.4668 Td -(5202 kfree\(\(char*\)p, PAGE\);) 135.424 Tj +(5202 kfree\(\(char*\)p, PAGE\);) 135.4239 Tj 0 -56.9602 Td (5203 if\(*f0\){) 65.5277 Tj 0 -66.4535 Td -(5204 \(*f0\)->type = FD_NONE;) 135.424 Tj +(5204 \(*f0\)->type = FD_NONE;) 135.4239 Tj 0 -75.9469 Td -(5205 fileclose\(*f0\);) 104.844 Tj +(5205 fileclose\(*f0\);) 104.8443 Tj 0 -85.4403 Td (5206 }) 34.9481 Tj 0 -94.9336 Td (5207 if\(*f1\){) 65.5277 Tj 0 -104.427 Td -(5208 \(*f1\)->type = FD_NONE;) 135.424 Tj -0 -113.92 Td -(5209 fileclose\(*f1\);) 104.844 Tj -0 -123.414 Td +(5208 \(*f1\)->type = FD_NONE;) 135.4239 Tj +0 -113.9203 Td +(5209 fileclose\(*f1\);) 104.8443 Tj +0 -123.4137 Td (5210 }) 34.9481 Tj -0 -132.907 Td +0 -132.9071 Td (5211 return -1;) 74.2647 Tj -0 -142.4 Td +0 -142.4004 Td (5212 }) 26.2111 Tj -0 -151.894 Td +0 -151.8938 Td (5213 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (5214 void) 39.3166 Tj -0 -170.88 Td -(5215 pipeclose\(struct pipe *p, int writable\)) 192.215 Tj -0 -180.374 Td +0 -170.8805 Td +(5215 pipeclose\(struct pipe *p, int writable\)) 192.2146 Tj +0 -180.3739 Td (5216 {) 26.2111 Tj -0 -189.867 Td -(5217 acquire\(&p->lock\);) 109.213 Tj -0 -199.361 Td +0 -189.8672 Td +(5217 acquire\(&p->lock\);) 109.2129 Tj +0 -199.3606 Td (5218 if\(writable\){) 87.3703 Tj -0 -208.854 Td -(5219 p->writeopen = 0;) 113.581 Tj -0 -218.347 Td -(5220 wakeup\(&p->readp\);) 117.95 Tj -0 -227.841 Td +0 -208.8539 Td +(5219 p->writeopen = 0;) 113.5814 Tj +0 -218.3473 Td +(5220 wakeup\(&p->readp\);) 117.9499 Tj +0 -227.8407 Td (5221 } else {) 65.5277 Tj 0 -237.334 Td -(5222 p->readopen = 0;) 109.213 Tj -0 -246.827 Td -(5223 wakeup\(&p->writep\);) 122.318 Tj -0 -256.321 Td +(5222 p->readopen = 0;) 109.2129 Tj +0 -246.8274 Td +(5223 wakeup\(&p->writep\);) 122.3184 Tj +0 -256.3207 Td (5224 }) 34.9481 Tj -0 -265.814 Td -(5225 release\(&p->lock\);) 109.213 Tj -0 -275.307 Td +0 -265.8141 Td +(5225 release\(&p->lock\);) 109.2129 Tj +0 -275.3075 Td (5226 ) 21.8426 Tj -0 -284.801 Td -(5227 if\(p->readopen == 0 && p->writeopen == 0\)) 209.689 Tj -0 -294.294 Td -(5228 kfree\(\(char*\)p, PAGE\);) 135.424 Tj -0 -303.788 Td +0 -284.8008 Td +(5227 if\(p->readopen == 0 && p->writeopen == 0\)) 209.6887 Tj +0 -294.2942 Td +(5228 kfree\(\(char*\)p, PAGE\);) 135.4239 Tj +0 -303.7875 Td (5229 }) 26.2111 Tj -0 -313.281 Td +0 -313.2809 Td (5230 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (5231 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (5232 ) 21.8426 Tj 0 -341.761 Td (5233 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (5234 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (5235 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (5236 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (5237 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (5238 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (5239 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (5240 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (5241 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (5242 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (5243 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (5244 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (5245 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (5246 ) 21.8426 Tj 0 -474.668 Td (5247 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5248 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5249 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 52) 34.9481 Tj Q Q @@ -17912,14 +17894,14 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/pipe.c Page 3) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/pipe.c Page 3) 161.635 Tj 0 -28.4801 Td (5250 int) 34.9481 Tj 0 -37.9735 Td -(5251 pipewrite\(struct pipe *p, char *addr, int n\)) 214.057 Tj +(5251 pipewrite\(struct pipe *p, char *addr, int n\)) 214.0572 Tj 0 -47.4668 Td (5252 {) 26.2111 Tj 0 -56.9602 Td @@ -17927,96 +17909,96 @@ q 0 -66.4535 Td (5254 ) 21.8426 Tj 0 -75.9469 Td -(5255 acquire\(&p->lock\);) 109.213 Tj +(5255 acquire\(&p->lock\);) 109.2129 Tj 0 -85.4403 Td -(5256 for\(i = 0; i < n; i++\){) 131.055 Tj +(5256 for\(i = 0; i < n; i++\){) 131.0554 Tj 0 -94.9336 Td -(5257 while\(\(\(p->writep + 1\) % PIPESIZE\) == p->readp\){) 249.005 Tj +(5257 while\(p->writep == p->readp + PIPESIZE\) {) 218.4257 Tj 0 -104.427 Td -(5258 if\(p->readopen == 0 || cp->killed\){) 200.952 Tj -0 -113.92 Td -(5259 release\(&p->lock\);) 135.424 Tj -0 -123.414 Td -(5260 return -1;) 100.476 Tj -0 -132.907 Td +(5258 if\(p->readopen == 0 || cp->killed\){) 200.9517 Tj +0 -113.9203 Td +(5259 release\(&p->lock\);) 135.4239 Tj +0 -123.4137 Td +(5260 return -1;) 100.4758 Tj +0 -132.9071 Td (5261 }) 52.4222 Tj -0 -142.4 Td -(5262 wakeup\(&p->readp\);) 126.687 Tj -0 -151.894 Td -(5263 sleep\(&p->writep, &p->lock\);) 170.372 Tj -0 -161.387 Td +0 -142.4004 Td +(5262 wakeup\(&p->readp\);) 126.6869 Tj +0 -151.8938 Td +(5263 sleep\(&p->writep, &p->lock\);) 170.3721 Tj +0 -161.3871 Td (5264 }) 43.6851 Tj -0 -170.88 Td -(5265 p->data[p->writep] = addr[i];) 166.004 Tj -0 -180.374 Td -(5266 p->writep = \(p->writep + 1\) % PIPESIZE;) 209.689 Tj -0 -189.867 Td -(5267 }) 34.9481 Tj -0 -199.361 Td -(5268 wakeup\(&p->readp\);) 109.213 Tj -0 -208.854 Td -(5269 release\(&p->lock\);) 109.213 Tj -0 -218.347 Td -(5270 return i;) 69.8962 Tj -0 -227.841 Td -(5271 }) 26.2111 Tj +0 -170.8805 Td +(5265 p->data[p->writep++ % PIPESIZE] = addr[i];) 222.7942 Tj +0 -180.3739 Td +(5266 }) 34.9481 Tj +0 -189.8672 Td +(5267 wakeup\(&p->readp\);) 109.2129 Tj +0 -199.3606 Td +(5268 release\(&p->lock\);) 109.2129 Tj +0 -208.8539 Td +(5269 return i;) 69.8962 Tj +0 -218.3473 Td +(5270 }) 26.2111 Tj +0 -227.8407 Td +(5271 ) 21.8426 Tj 0 -237.334 Td -(5272 ) 21.8426 Tj -0 -246.827 Td -(5273 int) 34.9481 Tj -0 -256.321 Td -(5274 piperead\(struct pipe *p, char *addr, int n\)) 209.689 Tj -0 -265.814 Td -(5275 {) 26.2111 Tj -0 -275.307 Td -(5276 int i;) 56.7907 Tj -0 -284.801 Td -(5277 ) 21.8426 Tj -0 -294.294 Td -(5278 acquire\(&p->lock\);) 109.213 Tj -0 -303.788 Td -(5279 while\(p->readp == p->writep && p->writeopen\){) 227.163 Tj -0 -313.281 Td -(5280 if\(cp->killed\){) 104.844 Tj -0 -322.774 Td -(5281 release\(&p->lock\);) 126.687 Tj -0 -332.268 Td -(5282 return -1;) 91.7388 Tj +(5272 int) 34.9481 Tj +0 -246.8274 Td +(5273 piperead\(struct pipe *p, char *addr, int n\)) 209.6887 Tj +0 -256.3207 Td +(5274 {) 26.2111 Tj +0 -265.8141 Td +(5275 int i;) 56.7907 Tj +0 -275.3075 Td +(5276 ) 21.8426 Tj +0 -284.8008 Td +(5277 acquire\(&p->lock\);) 109.2129 Tj +0 -294.2942 Td +(5278 while\(p->readp == p->writep && p->writeopen\){) 227.1628 Tj +0 -303.7875 Td +(5279 if\(cp->killed\){) 104.8443 Tj +0 -313.2809 Td +(5280 release\(&p->lock\);) 126.6869 Tj +0 -322.7743 Td +(5281 return -1;) 91.7388 Tj +0 -332.2676 Td +(5282 }) 43.6851 Tj 0 -341.761 Td -(5283 }) 43.6851 Tj -0 -351.254 Td -(5284 sleep\(&p->readp, &p->lock\);) 157.267 Tj -0 -360.748 Td -(5285 }) 34.9481 Tj -0 -370.241 Td -(5286 for\(i = 0; i < n; i++\){) 131.055 Tj -0 -379.734 Td -(5287 if\(p->readp == p->writep\)) 148.529 Tj -0 -389.228 Td -(5288 break;) 74.2647 Tj -0 -398.721 Td -(5289 addr[i] = p->data[p->readp];) 161.635 Tj -0 -408.214 Td -(5290 p->readp = \(p->readp + 1\) % PIPESIZE;) 200.952 Tj -0 -417.708 Td -(5291 }) 34.9481 Tj -0 -427.201 Td -(5292 wakeup\(&p->writep\);) 113.581 Tj -0 -436.695 Td -(5293 release\(&p->lock\);) 109.213 Tj -0 -446.188 Td -(5294 return i;) 69.8962 Tj -0 -455.681 Td -(5295 }) 26.2111 Tj -0 -465.175 Td +(5283 sleep\(&p->readp, &p->lock\);) 157.2665 Tj +0 -351.2543 Td +(5284 }) 34.9481 Tj +0 -360.7477 Td +(5285 for\(i = 0; i < n; i++\){) 131.0554 Tj +0 -370.2411 Td +(5286 if\(p->readp == p->writep\)) 148.5295 Tj +0 -379.7344 Td +(5287 break;) 74.2647 Tj +0 -389.2278 Td +(5288 addr[i] = p->data[p->readp++ % PIPESIZE];) 218.4257 Tj +0 -398.7211 Td +(5289 }) 34.9481 Tj +0 -408.2145 Td +(5290 wakeup\(&p->writep\);) 113.5814 Tj +0 -417.7079 Td +(5291 release\(&p->lock\);) 109.2129 Tj +0 -427.2012 Td +(5292 return i;) 69.8962 Tj +0 -436.6946 Td +(5293 }) 26.2111 Tj +0 -446.1879 Td +(5294 ) 21.8426 Tj +0 -455.6813 Td +(5295 ) 21.8426 Tj +0 -465.1747 Td (5296 ) 21.8426 Tj 0 -474.668 Td (5297 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5298 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5299 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 52) 34.9481 Tj Q Q @@ -18045,8 +18027,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -18061,12 +18042,12 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/string.c Page 1) 170.372 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/string.c Page 1) 170.3721 Tj 0 -28.4801 Td -(5300 #include "types.h") 100.476 Tj +(5300 #include "types.h") 100.4758 Tj 0 -37.9735 Td (5301 ) 21.8426 Tj 0 -47.4668 Td @@ -18083,89 +18064,89 @@ q (5307 d = \(char*\)dst;) 96.1073 Tj 0 -104.427 Td (5308 while\(n-- > 0\)) 91.7388 Tj -0 -113.92 Td +0 -113.9203 Td (5309 *d++ = c;) 78.6333 Tj -0 -123.414 Td +0 -123.4137 Td (5310 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (5311 return dst;) 78.6333 Tj -0 -142.4 Td +0 -142.4004 Td (5312 }) 26.2111 Tj -0 -151.894 Td +0 -151.8938 Td (5313 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (5314 int) 34.9481 Tj -0 -170.88 Td -(5315 memcmp\(const void *v1, const void *v2, uint n\)) 222.794 Tj -0 -180.374 Td +0 -170.8805 Td +(5315 memcmp\(const void *v1, const void *v2, uint n\)) 222.7942 Tj +0 -180.3739 Td (5316 {) 26.2111 Tj -0 -189.867 Td -(5317 const uchar *s1, *s2;) 122.318 Tj -0 -199.361 Td +0 -189.8672 Td +(5317 const uchar *s1, *s2;) 122.3184 Tj +0 -199.3606 Td (5318 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (5319 s1 = v1;) 65.5277 Tj -0 -218.347 Td +0 -218.3473 Td (5320 s2 = v2;) 65.5277 Tj -0 -227.841 Td +0 -227.8407 Td (5321 while\(n-- > 0\){) 96.1073 Tj 0 -237.334 Td -(5322 if\(*s1 != *s2\)) 100.476 Tj -0 -246.827 Td -(5323 return *s1 - *s2;) 122.318 Tj -0 -256.321 Td +(5322 if\(*s1 != *s2\)) 100.4758 Tj +0 -246.8274 Td +(5323 return *s1 - *s2;) 122.3184 Tj +0 -256.3207 Td (5324 s1++, s2++;) 87.3703 Tj -0 -265.814 Td +0 -265.8141 Td (5325 }) 34.9481 Tj -0 -275.307 Td +0 -275.3075 Td (5326 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (5327 return 0;) 69.8962 Tj -0 -294.294 Td +0 -294.2942 Td (5328 }) 26.2111 Tj -0 -303.788 Td +0 -303.7875 Td (5329 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (5330 void*) 43.6851 Tj -0 -322.774 Td -(5331 memmove\(void *dst, const void *src, uint n\)) 209.689 Tj -0 -332.268 Td +0 -322.7743 Td +(5331 memmove\(void *dst, const void *src, uint n\)) 209.6887 Tj +0 -332.2676 Td (5332 {) 26.2111 Tj 0 -341.761 Td (5333 const char *s;) 91.7388 Tj -0 -351.254 Td +0 -351.2543 Td (5334 char *d;) 65.5277 Tj -0 -360.748 Td +0 -360.7477 Td (5335 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (5336 s = src;) 65.5277 Tj -0 -379.734 Td +0 -379.7344 Td (5337 d = dst;) 65.5277 Tj -0 -389.228 Td -(5338 if\(s < d && s + n > d\){) 131.055 Tj -0 -398.721 Td +0 -389.2278 Td +(5338 if\(s < d && s + n > d\){) 131.0554 Tj +0 -398.7211 Td (5339 s += n;) 69.8962 Tj -0 -408.214 Td +0 -408.2145 Td (5340 d += n;) 69.8962 Tj -0 -417.708 Td -(5341 while\(n-- > 0\)) 100.476 Tj -0 -427.201 Td -(5342 *--d = *--s;) 100.476 Tj -0 -436.695 Td +0 -417.7079 Td +(5341 while\(n-- > 0\)) 100.4758 Tj +0 -427.2012 Td +(5342 *--d = *--s;) 100.4758 Tj +0 -436.6946 Td (5343 } else) 56.7907 Tj -0 -446.188 Td -(5344 while\(n-- > 0\)) 100.476 Tj -0 -455.681 Td -(5345 *d++ = *s++;) 100.476 Tj -0 -465.175 Td +0 -446.1879 Td +(5344 while\(n-- > 0\)) 100.4758 Tj +0 -455.6813 Td +(5345 *d++ = *s++;) 100.4758 Tj +0 -465.1747 Td (5346 ) 21.8426 Tj 0 -474.668 Td (5347 return dst;) 78.6333 Tj -0 -484.161 Td +0 -484.1614 Td (5348 }) 26.2111 Tj -0 -493.655 Td +0 -493.6547 Td (5349 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 53) 34.9481 Tj Q Q @@ -18180,111 +18161,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/string.c Page 2) 170.372 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/string.c Page 2) 170.3721 Tj 0 -28.4801 Td (5350 int) 34.9481 Tj 0 -37.9735 Td -(5351 strncmp\(const char *p, const char *q, uint n\)) 218.426 Tj +(5351 strncmp\(const char *p, const char *q, uint n\)) 218.4257 Tj 0 -47.4668 Td (5352 {) 26.2111 Tj 0 -56.9602 Td (5353 while\(n > 0 && *p && *p == *q\)) 161.635 Tj 0 -66.4535 Td -(5354 n--, p++, q++;) 100.476 Tj +(5354 n--, p++, q++;) 100.4758 Tj 0 -75.9469 Td (5355 if\(n == 0\)) 74.2647 Tj 0 -85.4403 Td (5356 return 0;) 78.6333 Tj 0 -94.9336 Td -(5357 return \(uchar\)*p - \(uchar\)*q;) 157.267 Tj +(5357 return \(uchar\)*p - \(uchar\)*q;) 157.2665 Tj 0 -104.427 Td (5358 }) 26.2111 Tj -0 -113.92 Td +0 -113.9203 Td (5359 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (5360 char*) 43.6851 Tj -0 -132.907 Td -(5361 strncpy\(char *s, const char *t, int n\)) 187.846 Tj -0 -142.4 Td +0 -132.9071 Td +(5361 strncpy\(char *s, const char *t, int n\)) 187.8461 Tj +0 -142.4004 Td (5362 {) 26.2111 Tj -0 -151.894 Td +0 -151.8938 Td (5363 char *os;) 69.8962 Tj -0 -161.387 Td +0 -161.3871 Td (5364 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (5365 os = s;) 61.1592 Tj -0 -180.374 Td -(5366 while\(n-- > 0 && \(*s++ = *t++\) != 0\)) 187.846 Tj -0 -189.867 Td +0 -180.3739 Td +(5366 while\(n-- > 0 && \(*s++ = *t++\) != 0\)) 187.8461 Tj +0 -189.8672 Td (5367 ;) 43.6851 Tj -0 -199.361 Td +0 -199.3606 Td (5368 while\(n-- > 0\)) 91.7388 Tj -0 -208.854 Td +0 -208.8539 Td (5369 *s++ = 0;) 78.6333 Tj -0 -218.347 Td +0 -218.3473 Td (5370 return os;) 74.2647 Tj -0 -227.841 Td +0 -227.8407 Td (5371 }) 26.2111 Tj 0 -237.334 Td (5372 ) 21.8426 Tj -0 -246.827 Td -(5373 // Like strncpy but guaranteed to NUL-terminate.) 231.531 Tj -0 -256.321 Td +0 -246.8274 Td +(5373 // Like strncpy but guaranteed to NUL-terminate.) 231.5313 Tj +0 -256.3207 Td (5374 char*) 43.6851 Tj -0 -265.814 Td -(5375 safestrcpy\(char *s, const char *t, int n\)) 200.952 Tj -0 -275.307 Td +0 -265.8141 Td +(5375 safestrcpy\(char *s, const char *t, int n\)) 200.9517 Tj +0 -275.3075 Td (5376 {) 26.2111 Tj -0 -284.801 Td +0 -284.8008 Td (5377 char *os;) 69.8962 Tj -0 -294.294 Td +0 -294.2942 Td (5378 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (5379 os = s;) 61.1592 Tj -0 -313.281 Td +0 -313.2809 Td (5380 if\(n <= 0\)) 74.2647 Tj -0 -322.774 Td +0 -322.7743 Td (5381 return os;) 83.0018 Tj -0 -332.268 Td -(5382 while\(--n > 0 && \(*s++ = *t++\) != 0\)) 187.846 Tj +0 -332.2676 Td +(5382 while\(--n > 0 && \(*s++ = *t++\) != 0\)) 187.8461 Tj 0 -341.761 Td (5383 ;) 43.6851 Tj -0 -351.254 Td +0 -351.2543 Td (5384 *s = 0;) 61.1592 Tj -0 -360.748 Td +0 -360.7477 Td (5385 return os;) 74.2647 Tj -0 -370.241 Td +0 -370.2411 Td (5386 }) 26.2111 Tj -0 -379.734 Td +0 -379.7344 Td (5387 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (5388 int) 34.9481 Tj -0 -398.721 Td -(5389 strlen\(const char *s\)) 113.581 Tj -0 -408.214 Td +0 -398.7211 Td +(5389 strlen\(const char *s\)) 113.5814 Tj +0 -408.2145 Td (5390 {) 26.2111 Tj -0 -417.708 Td +0 -417.7079 Td (5391 int n;) 56.7907 Tj -0 -427.201 Td +0 -427.2012 Td (5392 ) 21.8426 Tj -0 -436.695 Td -(5393 for\(n = 0; s[n]; n++\)) 122.318 Tj -0 -446.188 Td +0 -436.6946 Td +(5393 for\(n = 0; s[n]; n++\)) 122.3184 Tj +0 -446.1879 Td (5394 ;) 43.6851 Tj -0 -455.681 Td +0 -455.6813 Td (5395 return n;) 69.8962 Tj -0 -465.175 Td +0 -465.1747 Td (5396 }) 26.2111 Tj 0 -474.668 Td (5397 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5398 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5399 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 53) 34.9481 Tj Q Q @@ -18313,8 +18294,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -18329,116 +18309,116 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/mp.h Page 1) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/mp.h Page 1) 152.898 Tj 0 -28.4801 Td -(5400 // See MultiProcessor Specification Version 1.[14]) 240.268 Tj +(5400 // See MultiProcessor Specification Version 1.[14]) 240.2683 Tj 0 -37.9735 Td (5401 ) 21.8426 Tj 0 -47.4668 Td -(5402 struct mp { // floating pointer) 209.689 Tj +(5402 struct mp { // floating pointer) 209.6887 Tj 0 -56.9602 Td -(5403 uchar signature[4]; // "_MP_") 200.952 Tj +(5403 uchar signature[4]; // "_MP_") 200.9517 Tj 0 -66.4535 Td (5404 void *physaddr; // phys addr of MP config \ table) 297.059 Tj 0 -75.9469 Td -(5405 uchar length; // 1) 179.109 Tj +(5405 uchar length; // 1) 179.1091 Tj 0 -85.4403 Td -(5406 uchar specrev; // [14]) 192.215 Tj +(5406 uchar specrev; // [14]) 192.2146 Tj 0 -94.9336 Td (5407 uchar checksum; // all bytes must add up t\ o 0) 288.322 Tj 0 -104.427 Td -(5408 uchar type; // MP system config type) 266.479 Tj -0 -113.92 Td +(5408 uchar type; // MP system config type) 266.4794 Tj +0 -113.9203 Td (5409 uchar imcrp;) 83.0018 Tj -0 -123.414 Td -(5410 uchar reserved[3];) 109.213 Tj -0 -132.907 Td +0 -123.4137 Td +(5410 uchar reserved[3];) 109.2129 Tj +0 -132.9071 Td (5411 };) 30.5796 Tj -0 -142.4 Td +0 -142.4004 Td (5412 ) 21.8426 Tj -0 -151.894 Td -(5413 struct mpconf { // configuration table header) 253.374 Tj -0 -161.387 Td -(5414 uchar signature[4]; // "PCMP") 200.952 Tj -0 -170.88 Td -(5415 ushort length; // total table length) 253.374 Tj -0 -180.374 Td -(5416 uchar version; // [14]) 192.215 Tj -0 -189.867 Td +0 -151.8938 Td +(5413 struct mpconf { // configuration table header) 253.3738 Tj +0 -161.3871 Td +(5414 uchar signature[4]; // "PCMP") 200.9517 Tj +0 -170.8805 Td +(5415 ushort length; // total table length) 253.3738 Tj +0 -180.3739 Td +(5416 uchar version; // [14]) 192.2146 Tj +0 -189.8672 Td (5417 uchar checksum; // all bytes must add up t\ o 0) 288.322 Tj -0 -199.361 Td -(5418 uchar product[20]; // product id) 218.426 Tj -0 -208.854 Td -(5419 uint *oemtable; // OEM table pointer) 249.005 Tj -0 -218.347 Td -(5420 ushort oemlength; // OEM table length) 244.637 Tj -0 -227.841 Td -(5421 ushort entry; // entry count) 222.794 Tj +0 -199.3606 Td +(5418 uchar product[20]; // product id) 218.4257 Tj +0 -208.8539 Td +(5419 uint *oemtable; // OEM table pointer) 249.0053 Tj +0 -218.3473 Td +(5420 ushort oemlength; // OEM table length) 244.6368 Tj +0 -227.8407 Td +(5421 ushort entry; // entry count) 222.7942 Tj 0 -237.334 Td -(5422 uint *lapicaddr; // address of local APIC) 266.479 Tj -0 -246.827 Td -(5423 ushort xlength; // extended table length) 266.479 Tj -0 -256.321 Td -(5424 uchar xchecksum; // extended table checksum) 275.216 Tj -0 -265.814 Td +(5422 uint *lapicaddr; // address of local APIC) 266.4794 Tj +0 -246.8274 Td +(5423 ushort xlength; // extended table length) 266.4794 Tj +0 -256.3207 Td +(5424 uchar xchecksum; // extended table checksum) 275.2164 Tj +0 -265.8141 Td (5425 uchar reserved;) 96.1073 Tj -0 -275.307 Td +0 -275.3075 Td (5426 };) 30.5796 Tj -0 -284.801 Td +0 -284.8008 Td (5427 ) 21.8426 Tj -0 -294.294 Td -(5428 struct mpproc { // processor table entry) 231.531 Tj -0 -303.788 Td -(5429 uchar type; // entry type \(0\)) 235.9 Tj -0 -313.281 Td -(5430 uchar apicid; // local APIC id) 231.531 Tj -0 -322.774 Td -(5431 uchar version; // local APIC verison) 253.374 Tj -0 -332.268 Td -(5432 uchar flags; // CPU flags) 214.057 Tj +0 -294.2942 Td +(5428 struct mpproc { // processor table entry) 231.5313 Tj +0 -303.7875 Td +(5429 uchar type; // entry type \(0\)) 235.8998 Tj +0 -313.2809 Td +(5430 uchar apicid; // local APIC id) 231.5313 Tj +0 -322.7743 Td +(5431 uchar version; // local APIC verison) 253.3738 Tj +0 -332.2676 Td +(5432 uchar flags; // CPU flags) 214.0572 Tj 0 -341.761 Td (5433 #define MPBOOT 0x02 // This proc is the boot\ -strap processor.) 345.113 Tj -0 -351.254 Td -(5434 uchar signature[4]; // CPU signature) 231.531 Tj -0 -360.748 Td +strap processor.) 345.1126 Tj +0 -351.2543 Td +(5434 uchar signature[4]; // CPU signature) 231.5313 Tj +0 -360.7477 Td (5435 uint feature; // feature flags from CPUI\ -D instruction) 332.007 Tj -0 -370.241 Td -(5436 uchar reserved[8];) 109.213 Tj -0 -379.734 Td +D instruction) 332.0071 Tj +0 -370.2411 Td +(5436 uchar reserved[8];) 109.2129 Tj +0 -379.7344 Td (5437 };) 30.5796 Tj -0 -389.228 Td +0 -389.2278 Td (5438 ) 21.8426 Tj -0 -398.721 Td -(5439 struct mpioapic { // I/O APIC table entry) 227.163 Tj -0 -408.214 Td -(5440 uchar type; // entry type \(2\)) 235.9 Tj -0 -417.708 Td -(5441 uchar apicno; // I/O APIC id) 222.794 Tj -0 -427.201 Td -(5442 uchar version; // I/O APIC version) 244.637 Tj -0 -436.695 Td -(5443 uchar flags; // I/O APIC flags) 235.9 Tj -0 -446.188 Td -(5444 uint *addr; // I/O APIC address) 240.268 Tj -0 -455.681 Td +0 -398.7211 Td +(5439 struct mpioapic { // I/O APIC table entry) 227.1628 Tj +0 -408.2145 Td +(5440 uchar type; // entry type \(2\)) 235.8998 Tj +0 -417.7079 Td +(5441 uchar apicno; // I/O APIC id) 222.7942 Tj +0 -427.2012 Td +(5442 uchar version; // I/O APIC version) 244.6368 Tj +0 -436.6946 Td +(5443 uchar flags; // I/O APIC flags) 235.8998 Tj +0 -446.1879 Td +(5444 uint *addr; // I/O APIC address) 240.2683 Tj +0 -455.6813 Td (5445 };) 30.5796 Tj -0 -465.175 Td +0 -465.1747 Td (5446 ) 21.8426 Tj 0 -474.668 Td (5447 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5448 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5449 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 54) 34.9481 Tj Q Q @@ -18453,111 +18433,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/mp.h Page 2) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/mp.h Page 2) 152.898 Tj 0 -28.4801 Td -(5450 // Table entry types) 109.213 Tj +(5450 // Table entry types) 109.2129 Tj 0 -37.9735 Td -(5451 #define MPPROC 0x00 // One per processor) 214.057 Tj +(5451 #define MPPROC 0x00 // One per processor) 214.0572 Tj 0 -47.4668 Td -(5452 #define MPBUS 0x01 // One per bus) 187.846 Tj +(5452 #define MPBUS 0x01 // One per bus) 187.8461 Tj 0 -56.9602 Td -(5453 #define MPIOAPIC 0x02 // One per I/O APIC) 209.689 Tj +(5453 #define MPIOAPIC 0x02 // One per I/O APIC) 209.6887 Tj 0 -66.4535 Td -(5454 #define MPIOINTR 0x03 // One per bus interrupt source) 262.111 Tj +(5454 #define MPIOINTR 0x03 // One per bus interrupt source) 262.1109 Tj 0 -75.9469 Td -(5455 #define MPLINTR 0x04 // One per system interrupt source) 275.216 Tj +(5455 #define MPLINTR 0x04 // One per system interrupt source) 275.2164 Tj 0 -85.4403 Td (5456 ) 21.8426 Tj 0 -94.9336 Td (5457 ) 21.8426 Tj 0 -104.427 Td (5458 ) 21.8426 Tj -0 -113.92 Td +0 -113.9203 Td (5459 ) 21.8426 Tj -0 -123.414 Td +0 -123.4137 Td (5460 ) 21.8426 Tj -0 -132.907 Td +0 -132.9071 Td (5461 ) 21.8426 Tj -0 -142.4 Td +0 -142.4004 Td (5462 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (5463 ) 21.8426 Tj -0 -161.387 Td +0 -161.3871 Td (5464 ) 21.8426 Tj -0 -170.88 Td +0 -170.8805 Td (5465 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (5466 ) 21.8426 Tj -0 -189.867 Td +0 -189.8672 Td (5467 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (5468 ) 21.8426 Tj -0 -208.854 Td +0 -208.8539 Td (5469 ) 21.8426 Tj -0 -218.347 Td +0 -218.3473 Td (5470 ) 21.8426 Tj -0 -227.841 Td +0 -227.8407 Td (5471 ) 21.8426 Tj 0 -237.334 Td (5472 ) 21.8426 Tj -0 -246.827 Td +0 -246.8274 Td (5473 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (5474 ) 21.8426 Tj -0 -265.814 Td +0 -265.8141 Td (5475 ) 21.8426 Tj -0 -275.307 Td +0 -275.3075 Td (5476 ) 21.8426 Tj -0 -284.801 Td +0 -284.8008 Td (5477 ) 21.8426 Tj -0 -294.294 Td +0 -294.2942 Td (5478 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (5479 ) 21.8426 Tj -0 -313.281 Td +0 -313.2809 Td (5480 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (5481 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (5482 ) 21.8426 Tj 0 -341.761 Td (5483 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (5484 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (5485 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (5486 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (5487 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (5488 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (5489 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (5490 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (5491 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (5492 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (5493 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (5494 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (5495 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (5496 ) 21.8426 Tj 0 -474.668 Td (5497 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5498 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5499 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 54) 34.9481 Tj Q Q @@ -18586,8 +18566,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -18602,113 +18581,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/mp.c Page 1) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/mp.c Page 1) 152.898 Tj 0 -28.4801 Td (5500 // Multiprocessor bootstrap.) 144.161 Tj 0 -37.9735 Td -(5501 // Search memory for MP description structures.) 227.163 Tj +(5501 // Search memory for MP description structures.) 227.1628 Tj 0 -47.4668 Td (5502 // http://developer.intel.com/design/pentium/datashts/2420\ -1606.pdf) 310.165 Tj +1606.pdf) 310.1645 Tj 0 -56.9602 Td (5503 ) 21.8426 Tj 0 -66.4535 Td -(5504 #include "types.h") 100.476 Tj +(5504 #include "types.h") 100.4758 Tj 0 -75.9469 Td (5505 #include "defs.h") 96.1073 Tj 0 -85.4403 Td -(5506 #include "param.h") 100.476 Tj +(5506 #include "param.h") 100.4758 Tj 0 -94.9336 Td (5507 #include "mp.h") 87.3703 Tj 0 -104.427 Td (5508 #include "x86.h") 91.7388 Tj -0 -113.92 Td +0 -113.9203 Td (5509 #include "mmu.h") 91.7388 Tj -0 -123.414 Td +0 -123.4137 Td (5510 #include "proc.h") 96.1073 Tj -0 -132.907 Td +0 -132.9071 Td (5511 ) 21.8426 Tj -0 -142.4 Td -(5512 struct cpu cpus[NCPU];) 117.95 Tj -0 -151.894 Td -(5513 static struct cpu *bcpu;) 126.687 Tj -0 -161.387 Td +0 -142.4004 Td +(5512 struct cpu cpus[NCPU];) 117.9499 Tj +0 -151.8938 Td +(5513 static struct cpu *bcpu;) 126.6869 Tj +0 -161.3871 Td (5514 int ismp;) 61.1592 Tj -0 -170.88 Td +0 -170.8805 Td (5515 int ncpu;) 61.1592 Tj -0 -180.374 Td +0 -180.3739 Td (5516 uchar ioapic_id;) 91.7388 Tj -0 -189.867 Td +0 -189.8672 Td (5517 ) 21.8426 Tj -0 -199.361 Td +0 -199.3606 Td (5518 int) 34.9481 Tj -0 -208.854 Td +0 -208.8539 Td (5519 mp_bcpu\(void\)) 78.6333 Tj -0 -218.347 Td +0 -218.3473 Td (5520 {) 26.2111 Tj -0 -227.841 Td -(5521 return bcpu-cpus;) 104.844 Tj +0 -227.8407 Td +(5521 return bcpu-cpus;) 104.8443 Tj 0 -237.334 Td (5522 }) 26.2111 Tj -0 -246.827 Td +0 -246.8274 Td (5523 ) 21.8426 Tj -0 -256.321 Td +0 -256.3207 Td (5524 static uchar) 74.2647 Tj -0 -265.814 Td -(5525 sum\(uchar *addr, int len\)) 131.055 Tj -0 -275.307 Td +0 -265.8141 Td +(5525 sum\(uchar *addr, int len\)) 131.0554 Tj +0 -275.3075 Td (5526 {) 26.2111 Tj -0 -284.801 Td +0 -284.8008 Td (5527 int i, sum;) 78.6333 Tj -0 -294.294 Td +0 -294.2942 Td (5528 ) 21.8426 Tj -0 -303.788 Td +0 -303.7875 Td (5529 sum = 0;) 65.5277 Tj -0 -313.281 Td -(5530 for\(i=0; iphysaddr == 0\)) 240.268 Tj -0 -370.241 Td +0 -360.7477 Td +(5585 if\(\(mp = mp_search\(\)\) == 0 || mp->physaddr == 0\)) 240.2683 Tj +0 -370.2411 Td (5586 return 0;) 78.6333 Tj -0 -379.734 Td -(5587 conf = \(struct mpconf*\)mp->physaddr;) 187.846 Tj -0 -389.228 Td -(5588 if\(memcmp\(conf, "PCMP", 4\) != 0\)) 170.372 Tj -0 -398.721 Td +0 -379.7344 Td +(5587 conf = \(struct mpconf*\)mp->physaddr;) 187.8461 Tj +0 -389.2278 Td +(5588 if\(memcmp\(conf, "PCMP", 4\) != 0\)) 170.3721 Tj +0 -398.7211 Td (5589 return 0;) 78.6333 Tj -0 -408.214 Td -(5590 if\(conf->version != 1 && conf->version != 4\)) 222.794 Tj -0 -417.708 Td +0 -408.2145 Td +(5590 if\(conf->version != 1 && conf->version != 4\)) 222.7942 Tj +0 -417.7079 Td (5591 return 0;) 78.6333 Tj -0 -427.201 Td -(5592 if\(sum\(\(uchar*\)conf, conf->length\) != 0\)) 205.32 Tj -0 -436.695 Td +0 -427.2012 Td +(5592 if\(sum\(\(uchar*\)conf, conf->length\) != 0\)) 205.3202 Tj +0 -436.6946 Td (5593 return 0;) 78.6333 Tj -0 -446.188 Td +0 -446.1879 Td (5594 *pmp = mp;) 74.2647 Tj -0 -455.681 Td +0 -455.6813 Td (5595 return conf;) 83.0018 Tj -0 -465.175 Td +0 -465.1747 Td (5596 }) 26.2111 Tj 0 -474.668 Td (5597 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5598 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5599 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 55) 34.9481 Tj Q Q @@ -18859,8 +18838,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -18875,10 +18853,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/mp.c Page 3) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/mp.c Page 3) 152.898 Tj 0 -28.4801 Td (5600 void) 39.3166 Tj 0 -37.9735 Td @@ -18890,99 +18868,99 @@ q 0 -66.4535 Td (5604 struct mp *mp;) 91.7388 Tj 0 -75.9469 Td -(5605 struct mpconf *conf;) 117.95 Tj +(5605 struct mpconf *conf;) 117.9499 Tj 0 -85.4403 Td -(5606 struct mpproc *proc;) 117.95 Tj +(5606 struct mpproc *proc;) 117.9499 Tj 0 -94.9336 Td -(5607 struct mpioapic *ioapic;) 135.424 Tj +(5607 struct mpioapic *ioapic;) 135.4239 Tj 0 -104.427 Td (5608 ) 21.8426 Tj -0 -113.92 Td -(5609 bcpu = &cpus[ncpu];) 113.581 Tj -0 -123.414 Td -(5610 if\(\(conf = mp_config\(&mp\)\) == 0\)) 170.372 Tj -0 -132.907 Td +0 -113.9203 Td +(5609 bcpu = &cpus[ncpu];) 113.5814 Tj +0 -123.4137 Td +(5610 if\(\(conf = mp_config\(&mp\)\) == 0\)) 170.3721 Tj +0 -132.9071 Td (5611 return;) 69.8962 Tj -0 -142.4 Td +0 -142.4004 Td (5612 ) 21.8426 Tj -0 -151.894 Td +0 -151.8938 Td (5613 ismp = 1;) 69.8962 Tj -0 -161.387 Td -(5614 lapic = \(uint*\)conf->lapicaddr;) 166.004 Tj -0 -170.88 Td +0 -161.3871 Td +(5614 lapic = \(uint*\)conf->lapicaddr;) 166.0035 Tj +0 -170.8805 Td (5615 ) 21.8426 Tj -0 -180.374 Td +0 -180.3739 Td (5616 for\(p=\(uchar*\)\(conf+1\), e=\(uchar*\)conf+conf->leng\ -th; papicid;) 192.215 Tj -0 -227.841 Td +0 -208.8539 Td +(5619 proc = \(struct mpproc*\)p;) 157.2665 Tj +0 -218.3473 Td +(5620 cpus[ncpu].apicid = proc->apicid;) 192.2146 Tj +0 -227.8407 Td (5621 if\(proc->flags & MPBOOT\)) 152.898 Tj 0 -237.334 Td -(5622 bcpu = &cpus[ncpu];) 139.792 Tj -0 -246.827 Td +(5622 bcpu = &cpus[ncpu];) 139.7925 Tj +0 -246.8274 Td (5623 ncpu++;) 78.6333 Tj -0 -256.321 Td -(5624 p += sizeof\(struct mpproc\);) 166.004 Tj -0 -265.814 Td +0 -256.3207 Td +(5624 p += sizeof\(struct mpproc\);) 166.0035 Tj +0 -265.8141 Td (5625 continue;) 87.3703 Tj -0 -275.307 Td -(5626 case MPIOAPIC:) 100.476 Tj -0 -284.801 Td -(5627 ioapic = \(struct mpioapic*\)p;) 174.741 Tj -0 -294.294 Td -(5628 ioapic_id = ioapic->apicno;) 166.004 Tj -0 -303.788 Td -(5629 p += sizeof\(struct mpioapic\);) 174.741 Tj -0 -313.281 Td +0 -275.3075 Td +(5626 case MPIOAPIC:) 100.4758 Tj +0 -284.8008 Td +(5627 ioapic = \(struct mpioapic*\)p;) 174.7406 Tj +0 -294.2942 Td +(5628 ioapic_id = ioapic->apicno;) 166.0035 Tj +0 -303.7875 Td +(5629 p += sizeof\(struct mpioapic\);) 174.7406 Tj +0 -313.2809 Td (5630 continue;) 87.3703 Tj -0 -322.774 Td +0 -322.7743 Td (5631 case MPBUS:) 87.3703 Tj -0 -332.268 Td -(5632 case MPIOINTR:) 100.476 Tj +0 -332.2676 Td +(5632 case MPIOINTR:) 100.4758 Tj 0 -341.761 Td (5633 case MPLINTR:) 96.1073 Tj -0 -351.254 Td +0 -351.2543 Td (5634 p += 8;) 78.6333 Tj -0 -360.748 Td +0 -360.7477 Td (5635 continue;) 87.3703 Tj -0 -370.241 Td +0 -370.2411 Td (5636 default:) 74.2647 Tj -0 -379.734 Td -(5637 cprintf\("mp_init: unknown config type %x\\n", *p\);) 262.111 Tj -0 -389.228 Td -(5638 panic\("mp_init"\);) 122.318 Tj -0 -398.721 Td +0 -379.7344 Td +(5637 cprintf\("mp_init: unknown config type %x\\n", *p\);) 262.1109 Tj +0 -389.2278 Td +(5638 panic\("mp_init"\);) 122.3184 Tj +0 -398.7211 Td (5639 }) 43.6851 Tj -0 -408.214 Td +0 -408.2145 Td (5640 }) 34.9481 Tj -0 -417.708 Td +0 -417.7079 Td (5641 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (5642 if\(mp->imcrp\){) 91.7388 Tj -0 -436.695 Td +0 -436.6946 Td (5643 // Bochs doesn't support IMCR, so this doesn't run on \ -Bochs.) 301.427 Tj -0 -446.188 Td -(5644 // But it would on real hardware.) 183.478 Tj -0 -455.681 Td -(5645 outb\(0x22, 0x70\); // Select IMCR) 187.846 Tj -0 -465.175 Td +Bochs.) 301.4275 Tj +0 -446.1879 Td +(5644 // But it would on real hardware.) 183.4776 Tj +0 -455.6813 Td +(5645 outb\(0x22, 0x70\); // Select IMCR) 187.8461 Tj +0 -465.1747 Td (5646 outb\(0x23, inb\(0x23\) | 1\); // Mask external inter\ -rupts.) 283.953 Tj +rupts.) 283.9534 Tj 0 -474.668 Td (5647 }) 34.9481 Tj -0 -484.161 Td +0 -484.1614 Td (5648 }) 26.2111 Tj -0 -493.655 Td +0 -493.6547 Td (5649 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 56) 34.9481 Tj Q Q @@ -18997,122 +18975,122 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/lapic.c Page 1) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/lapic.c Page 1) 166.0035 Tj 0 -28.4801 Td -(5650 // The local APIC manages internal \(non-I/O\) interrupts.) 266.479 Tj +(5650 // The local APIC manages internal \(non-I/O\) interrupts.) 266.4794 Tj 0 -37.9735 Td (5651 // See Chapter 8 & Appendix C of Intel processor manual vo\ lume 3.) 305.796 Tj 0 -47.4668 Td (5652 ) 21.8426 Tj 0 -56.9602 Td -(5653 #include "types.h") 100.476 Tj +(5653 #include "types.h") 100.4758 Tj 0 -66.4535 Td -(5654 #include "traps.h") 100.476 Tj +(5654 #include "defs.h") 96.1073 Tj 0 -75.9469 Td -(5655 ) 21.8426 Tj +(5655 #include "traps.h") 100.4758 Tj 0 -85.4403 Td -(5656 // Local APIC registers, divided by 4 for use as uint[] in\ -dices.) 301.427 Tj +(5656 #include "mmu.h") 91.7388 Tj 0 -94.9336 Td -(5657 #define ID \(0x0020/4\) // ID) 170.372 Tj +(5657 #include "x86.h") 91.7388 Tj 0 -104.427 Td -(5658 #define VER \(0x0030/4\) // Version) 192.215 Tj -0 -113.92 Td -(5659 #define TPR \(0x0080/4\) // Task Priority) 218.426 Tj -0 -123.414 Td -(5660 #define EOI \(0x00B0/4\) // EOI) 174.741 Tj -0 -132.907 Td -(5661 #define SVR \(0x00F0/4\) // Spurious Interrupt Vecto\ -r) 270.848 Tj -0 -142.4 Td -(5662 #define ENABLE 0x00000100 // Unit Enable) 231.531 Tj -0 -151.894 Td -(5663 #define ESR \(0x0280/4\) // Error Status) 214.057 Tj -0 -161.387 Td -(5664 #define ICRLO \(0x0300/4\) // Interrupt Command) 235.9 Tj -0 -170.88 Td -(5665 #define INIT 0x00000500 // INIT/RESET) 227.163 Tj -0 -180.374 Td -(5666 #define STARTUP 0x00000600 // Startup IPI) 231.531 Tj -0 -189.867 Td -(5667 #define DELIVS 0x00001000 // Delivery status) 249.005 Tj -0 -199.361 Td -(5668 #define ASSERT 0x00004000 // Assert interrupt \(vs\ +(5658 ) 21.8426 Tj +0 -113.9203 Td +(5659 // Local APIC registers, divided by 4 for use as uint[] in\ +dices.) 301.4275 Tj +0 -123.4137 Td +(5660 #define ID \(0x0020/4\) // ID) 170.3721 Tj +0 -132.9071 Td +(5661 #define VER \(0x0030/4\) // Version) 192.2146 Tj +0 -142.4004 Td +(5662 #define TPR \(0x0080/4\) // Task Priority) 218.4257 Tj +0 -151.8938 Td +(5663 #define EOI \(0x00B0/4\) // EOI) 174.7406 Tj +0 -161.3871 Td +(5664 #define SVR \(0x00F0/4\) // Spurious Interrupt Vecto\ +r) 270.8479 Tj +0 -170.8805 Td +(5665 #define ENABLE 0x00000100 // Unit Enable) 231.5313 Tj +0 -180.3739 Td +(5666 #define ESR \(0x0280/4\) // Error Status) 214.0572 Tj +0 -189.8672 Td +(5667 #define ICRLO \(0x0300/4\) // Interrupt Command) 235.8998 Tj +0 -199.3606 Td +(5668 #define INIT 0x00000500 // INIT/RESET) 227.1628 Tj +0 -208.8539 Td +(5669 #define STARTUP 0x00000600 // Startup IPI) 231.5313 Tj +0 -218.3473 Td +(5670 #define DELIVS 0x00001000 // Delivery status) 249.0053 Tj +0 -227.8407 Td +(5671 #define ASSERT 0x00004000 // Assert interrupt \(vs\ deassert\)) 314.533 Tj -0 -208.854 Td -(5669 #define LEVEL 0x00008000 // Level triggered) 249.005 Tj -0 -218.347 Td -(5670 #define BCAST 0x00080000 // Send to all APICs, in\ -cluding self.) 332.007 Tj -0 -227.841 Td -(5671 #define ICRHI \(0x0310/4\) // Interrupt Command [63:32\ -]) 270.848 Tj 0 -237.334 Td -(5672 #define TIMER \(0x0320/4\) // Local Vector Table 0 \(T\ -IMER\)) 283.953 Tj -0 -246.827 Td -(5673 #define X1 0x0000000B // divide counts by 1) 262.111 Tj -0 -256.321 Td -(5674 #define PERIODIC 0x00020000 // Periodic) 218.426 Tj -0 -265.814 Td -(5675 #define PCINT \(0x0340/4\) // Performance Counter LVT) 262.111 Tj -0 -275.307 Td -(5676 #define LINT0 \(0x0350/4\) // Local Vector Table 1 \(L\ -INT0\)) 283.953 Tj -0 -284.801 Td -(5677 #define LINT1 \(0x0360/4\) // Local Vector Table 2 \(L\ -INT1\)) 283.953 Tj -0 -294.294 Td -(5678 #define ERROR \(0x0370/4\) // Local Vector Table 3 \(E\ -RROR\)) 283.953 Tj -0 -303.788 Td -(5679 #define MASKED 0x00010000 // Interrupt masked) 253.374 Tj -0 -313.281 Td -(5680 #define TICR \(0x0380/4\) // Timer Initial Count) 244.637 Tj -0 -322.774 Td -(5681 #define TCCR \(0x0390/4\) // Timer Current Count) 244.637 Tj -0 -332.268 Td -(5682 #define TDCR \(0x03E0/4\) // Timer Divide Configurati\ -on) 275.216 Tj +(5672 #define LEVEL 0x00008000 // Level triggered) 249.0053 Tj +0 -246.8274 Td +(5673 #define BCAST 0x00080000 // Send to all APICs, in\ +cluding self.) 332.0071 Tj +0 -256.3207 Td +(5674 #define ICRHI \(0x0310/4\) // Interrupt Command [63:32\ +]) 270.8479 Tj +0 -265.8141 Td +(5675 #define TIMER \(0x0320/4\) // Local Vector Table 0 \(T\ +IMER\)) 283.9534 Tj +0 -275.3075 Td +(5676 #define X1 0x0000000B // divide counts by 1) 262.1109 Tj +0 -284.8008 Td +(5677 #define PERIODIC 0x00020000 // Periodic) 218.4257 Tj +0 -294.2942 Td +(5678 #define PCINT \(0x0340/4\) // Performance Counter LVT) 262.1109 Tj +0 -303.7875 Td +(5679 #define LINT0 \(0x0350/4\) // Local Vector Table 1 \(L\ +INT0\)) 283.9534 Tj +0 -313.2809 Td +(5680 #define LINT1 \(0x0360/4\) // Local Vector Table 2 \(L\ +INT1\)) 283.9534 Tj +0 -322.7743 Td +(5681 #define ERROR \(0x0370/4\) // Local Vector Table 3 \(E\ +RROR\)) 283.9534 Tj +0 -332.2676 Td +(5682 #define MASKED 0x00010000 // Interrupt masked) 253.3738 Tj 0 -341.761 Td -(5683 ) 21.8426 Tj -0 -351.254 Td -(5684 volatile uint *lapic; // Initialized in mp.c) 218.426 Tj -0 -360.748 Td -(5685 ) 21.8426 Tj -0 -370.241 Td +(5683 #define TICR \(0x0380/4\) // Timer Initial Count) 244.6368 Tj +0 -351.2543 Td +(5684 #define TCCR \(0x0390/4\) // Timer Current Count) 244.6368 Tj +0 -360.7477 Td +(5685 #define TDCR \(0x03E0/4\) // Timer Divide Configurati\ +on) 275.2164 Tj +0 -370.2411 Td (5686 ) 21.8426 Tj -0 -379.734 Td -(5687 ) 21.8426 Tj -0 -389.228 Td +0 -379.7344 Td +(5687 volatile uint *lapic; // Initialized in mp.c) 218.4257 Tj +0 -389.2278 Td (5688 ) 21.8426 Tj -0 -398.721 Td -(5689 ) 21.8426 Tj -0 -408.214 Td -(5690 ) 21.8426 Tj -0 -417.708 Td -(5691 ) 21.8426 Tj -0 -427.201 Td -(5692 ) 21.8426 Tj -0 -436.695 Td -(5693 ) 21.8426 Tj -0 -446.188 Td -(5694 ) 21.8426 Tj -0 -455.681 Td +0 -398.7211 Td +(5689 static void) 69.8962 Tj +0 -408.2145 Td +(5690 lapicw\(int index, int value\)) 144.161 Tj +0 -417.7079 Td +(5691 {) 26.2111 Tj +0 -427.2012 Td +(5692 lapic[index] = value;) 122.3184 Tj +0 -436.6946 Td +(5693 lapic[ID]; // wait for write to finish, by reading) 253.3738 Tj +0 -446.1879 Td +(5694 }) 26.2111 Tj +0 -455.6813 Td (5695 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (5696 ) 21.8426 Tj 0 -474.668 Td (5697 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5698 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5699 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 56) 34.9481 Tj Q Q @@ -19141,8 +19119,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -19157,10 +19134,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/lapic.c Page 2) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/lapic.c Page 2) 166.0035 Tj 0 -28.4801 Td (5700 void) 39.3166 Tj 0 -37.9735 Td @@ -19174,97 +19151,98 @@ q 0 -75.9469 Td (5705 ) 21.8426 Tj 0 -85.4403 Td -(5706 // Enable local APIC; set spurious interrupt vector.) 257.742 Tj +(5706 // Enable local APIC; set spurious interrupt vector.) 257.7424 Tj 0 -94.9336 Td -(5707 lapic[SVR] = ENABLE | \(IRQ_OFFSET+IRQ_SPURIOUS\);) 240.268 Tj +(5707 lapicw\(SVR, ENABLE | \(IRQ_OFFSET+IRQ_SPURIOUS\)\);) 240.2683 Tj 0 -104.427 Td (5708 ) 21.8426 Tj -0 -113.92 Td -(5709 // The timer repeatedly counts down at bus frequency) 257.742 Tj -0 -123.414 Td -(5710 // from lapic[TICR] and then issues an interrupt.) 244.637 Tj -0 -132.907 Td -(5711 // Lapic[TCCR] is the current counter value.) 222.794 Tj -0 -142.4 Td -(5712 // If xv6 cared more about precise timekeeping, the) 253.374 Tj -0 -151.894 Td -(5713 // values of TICR and TCCR would be calibrated using) 257.742 Tj -0 -161.387 Td -(5714 // an external time source.) 148.529 Tj -0 -170.88 Td -(5715 lapic[TDCR] = X1;) 104.844 Tj -0 -180.374 Td -(5716 lapic[TICR] = 10000000;) 131.055 Tj -0 -189.867 Td -(5717 lapic[TCCR] = 10000000;) 131.055 Tj -0 -199.361 Td -(5718 lapic[TIMER] = PERIODIC | \(IRQ_OFFSET + IRQ_TIMER\);) 253.374 Tj -0 -208.854 Td -(5719 ) 21.8426 Tj -0 -218.347 Td -(5720 // Disable logical interrupt lines.) 183.478 Tj -0 -227.841 Td -(5721 lapic[LINT0] = MASKED;) 126.687 Tj +0 -113.9203 Td +(5709 // The timer repeatedly counts down at bus frequency) 257.7424 Tj +0 -123.4137 Td +(5710 // from lapic[TICR] and then issues an interrupt.) 244.6368 Tj +0 -132.9071 Td +(5711 // If xv6 cared more about precise timekeeping,) 235.8998 Tj +0 -142.4004 Td +(5712 // TICR would be calibrated using an external time sourc\ +e.) 283.9534 Tj +0 -151.8938 Td +(5713 lapicw\(TDCR, X1\);) 104.8443 Tj +0 -161.3871 Td +(5714 lapicw\(TIMER, PERIODIC | \(IRQ_OFFSET + IRQ_TIMER\)\);) 253.3738 Tj +0 -170.8805 Td +(5715 lapicw\(TICR, 10000000\);) 131.0554 Tj +0 -180.3739 Td +(5716 ) 21.8426 Tj +0 -189.8672 Td +(5717 // Disable logical interrupt lines.) 183.4776 Tj +0 -199.3606 Td +(5718 lapicw\(LINT0, MASKED\);) 126.6869 Tj +0 -208.8539 Td +(5719 lapicw\(LINT1, MASKED\);) 126.6869 Tj +0 -218.3473 Td +(5720 ) 21.8426 Tj +0 -227.8407 Td +(5721 // Disable performance counter overflow interrupts) 249.0053 Tj 0 -237.334 Td -(5722 lapic[LINT1] = MASKED;) 126.687 Tj -0 -246.827 Td -(5723 ) 21.8426 Tj -0 -256.321 Td -(5724 // Disable performance counter overflow interrupts) 249.005 Tj -0 -265.814 Td -(5725 // on machines that provide that interrupt entry.) 244.637 Tj -0 -275.307 Td -(5726 if\(\(\(lapic[VER]>>16\) & 0xFF\) >= 4\)) 179.109 Tj -0 -284.801 Td -(5727 lapic[PCINT] = MASKED;) 135.424 Tj -0 -294.294 Td +(5722 // on machines that provide that interrupt entry.) 244.6368 Tj +0 -246.8274 Td +(5723 if\(\(\(lapic[VER]>>16\) & 0xFF\) >= 4\)) 179.1091 Tj +0 -256.3207 Td +(5724 lapicw\(PCINT, MASKED\);) 135.4239 Tj +0 -265.8141 Td +(5725 ) 21.8426 Tj +0 -275.3075 Td +(5726 // Map error interrupt to IRQ_ERROR.) 187.8461 Tj +0 -284.8008 Td +(5727 lapicw\(ERROR, IRQ_OFFSET+IRQ_ERROR\);) 187.8461 Tj +0 -294.2942 Td (5728 ) 21.8426 Tj -0 -303.788 Td -(5729 // Map error interrupt to IRQ_ERROR.) 187.846 Tj -0 -313.281 Td -(5730 lapic[ERROR] = IRQ_OFFSET+IRQ_ERROR;) 187.846 Tj -0 -322.774 Td -(5731 ) 21.8426 Tj -0 -332.268 Td -(5732 // Clear error status register \(requires back-to-back w\ -rites\).) 301.427 Tj +0 -303.7875 Td +(5729 // Clear error status register \(requires back-to-back w\ +rites\).) 301.4275 Tj +0 -313.2809 Td +(5730 lapicw\(ESR, 0\);) 96.1073 Tj +0 -322.7743 Td +(5731 lapicw\(ESR, 0\);) 96.1073 Tj +0 -332.2676 Td +(5732 ) 21.8426 Tj 0 -341.761 Td -(5733 lapic[ESR] = 0;) 96.1073 Tj -0 -351.254 Td -(5734 lapic[ESR] = 0;) 96.1073 Tj -0 -360.748 Td +(5733 // Ack any outstanding interrupts.) 179.1091 Tj +0 -351.2543 Td +(5734 lapicw\(EOI, 0\);) 96.1073 Tj +0 -360.7477 Td (5735 ) 21.8426 Tj -0 -370.241 Td -(5736 // Ack any outstanding interrupts.) 179.109 Tj -0 -379.734 Td -(5737 lapic[EOI] = 0;) 96.1073 Tj -0 -389.228 Td -(5738 ) 21.8426 Tj -0 -398.721 Td -(5739 // Send an Init Level De-Assert to synchronise arbitrati\ -on ID's.) 310.165 Tj -0 -408.214 Td -(5740 lapic[ICRHI] = 0;) 104.844 Tj -0 -417.708 Td -(5741 lapic[ICRLO] = BCAST | INIT | LEVEL;) 187.846 Tj -0 -427.201 Td -(5742 while\(lapic[ICRLO] & DELIVS\)) 152.898 Tj -0 -436.695 Td -(5743 ;) 43.6851 Tj -0 -446.188 Td -(5744 ) 21.8426 Tj -0 -455.681 Td -(5745 // Enable interrupts on the APIC \(but not on the proces\ -sor\).) 292.69 Tj -0 -465.175 Td -(5746 lapic[TPR] = 0;) 96.1073 Tj +0 -370.2411 Td +(5736 // Send an Init Level De-Assert to synchronise arbitrati\ +on ID's.) 310.1645 Tj +0 -379.7344 Td +(5737 lapicw\(ICRHI, 0\);) 104.8443 Tj +0 -389.2278 Td +(5738 lapicw\(ICRLO, BCAST | INIT | LEVEL\);) 187.8461 Tj +0 -398.7211 Td +(5739 while\(lapic[ICRLO] & DELIVS\)) 152.898 Tj +0 -408.2145 Td +(5740 ;) 43.6851 Tj +0 -417.7079 Td +(5741 ) 21.8426 Tj +0 -427.2012 Td +(5742 // Enable interrupts on the APIC \(but not on the proces\ +sor\).) 292.6905 Tj +0 -436.6946 Td +(5743 lapicw\(TPR, 0\);) 96.1073 Tj +0 -446.1879 Td +(5744 }) 26.2111 Tj +0 -455.6813 Td +(5745 ) 21.8426 Tj +0 -465.1747 Td +(5746 ) 21.8426 Tj 0 -474.668 Td -(5747 }) 26.2111 Tj -0 -484.161 Td +(5747 ) 21.8426 Tj +0 -484.1614 Td (5748 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5749 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 57) 34.9481 Tj Q Q @@ -19279,10 +19257,10 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/lapic.c Page 3) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/lapic.c Page 3) 166.0035 Tj 0 -28.4801 Td (5750 int) 34.9481 Tj 0 -37.9735 Td @@ -19290,101 +19268,103 @@ q 0 -47.4668 Td (5752 {) 26.2111 Tj 0 -56.9602 Td -(5753 if\(lapic\)) 69.8962 Tj +(5753 // Cannot call cpu when interrupts are enabled:) 235.8998 Tj 0 -66.4535 Td -(5754 return lapic[ID]>>24;) 131.055 Tj +(5754 // result not guaranteed to last long enough to be used!) 275.2164 Tj 0 -75.9469 Td -(5755 return 0;) 69.8962 Tj +(5755 // Would prefer to panic but even printing is chancy her\ +e:) 283.9534 Tj 0 -85.4403 Td -(5756 }) 26.2111 Tj +(5756 // everything, including cprintf, calls cpu, at least in\ +directly) 310.1645 Tj 0 -94.9336 Td -(5757 ) 21.8426 Tj +(5757 // through acquire and release.) 166.0035 Tj 0 -104.427 Td -(5758 // Acknowledge interrupt.) 131.055 Tj -0 -113.92 Td -(5759 void) 39.3166 Tj -0 -123.414 Td -(5760 lapic_eoi\(void\)) 87.3703 Tj -0 -132.907 Td -(5761 {) 26.2111 Tj -0 -142.4 Td -(5762 if\(lapic\)) 69.8962 Tj -0 -151.894 Td -(5763 lapic[EOI] = 0;) 104.844 Tj -0 -161.387 Td -(5764 }) 26.2111 Tj -0 -170.88 Td -(5765 ) 21.8426 Tj -0 -180.374 Td -(5766 // Spin for a given number of microseconds.) 209.689 Tj -0 -189.867 Td -(5767 // On real hardware would want to tune this dynamically.) 266.479 Tj -0 -199.361 Td -(5768 static void) 69.8962 Tj -0 -208.854 Td -(5769 microdelay\(int us\)) 100.476 Tj -0 -218.347 Td -(5770 {) 26.2111 Tj -0 -227.841 Td -(5771 volatile int j = 0;) 113.581 Tj +(5758 if\(read_eflags\(\)&FL_IF\){) 135.4239 Tj +0 -113.9203 Td +(5759 static int n;) 96.1073 Tj +0 -123.4137 Td +(5760 if\(n++ == 0\)) 91.7388 Tj +0 -132.9071 Td +(5761 cprintf\("cpu called from %x with interrupts enabled\ +\\n",) 288.322 Tj +0 -142.4004 Td +(5762 \(\(uint*\)read_ebp\(\)\)[1]\);) 161.635 Tj +0 -151.8938 Td +(5763 }) 34.9481 Tj +0 -161.3871 Td +(5764 ) 21.8426 Tj +0 -170.8805 Td +(5765 if\(lapic\)) 69.8962 Tj +0 -180.3739 Td +(5766 return lapic[ID]>>24;) 131.0554 Tj +0 -189.8672 Td +(5767 return 0;) 69.8962 Tj +0 -199.3606 Td +(5768 }) 26.2111 Tj +0 -208.8539 Td +(5769 ) 21.8426 Tj +0 -218.3473 Td +(5770 // Acknowledge interrupt.) 131.0554 Tj +0 -227.8407 Td +(5771 void) 39.3166 Tj 0 -237.334 Td -(5772 ) 21.8426 Tj -0 -246.827 Td -(5773 while\(us-- > 0\)) 96.1073 Tj -0 -256.321 Td -(5774 for\(j=0; j<10000; j++\);) 139.792 Tj -0 -265.814 Td -(5775 }) 26.2111 Tj -0 -275.307 Td -(5776 ) 21.8426 Tj -0 -284.801 Td -(5777 // Start additional processor running bootstrap code at ad\ -dr.) 288.322 Tj -0 -294.294 Td -(5778 // See Appendix B of MultiProcessor Specification.) 240.268 Tj -0 -303.788 Td -(5779 void) 39.3166 Tj -0 -313.281 Td -(5780 lapic_startap\(uchar apicid, uint addr\)) 187.846 Tj -0 -322.774 Td -(5781 {) 26.2111 Tj -0 -332.268 Td -(5782 int i;) 56.7907 Tj +(5772 lapic_eoi\(void\)) 87.3703 Tj +0 -246.8274 Td +(5773 {) 26.2111 Tj +0 -256.3207 Td +(5774 if\(lapic\)) 69.8962 Tj +0 -265.8141 Td +(5775 lapicw\(EOI, 0\);) 104.8443 Tj +0 -275.3075 Td +(5776 }) 26.2111 Tj +0 -284.8008 Td +(5777 ) 21.8426 Tj +0 -294.2942 Td +(5778 // Spin for a given number of microseconds.) 209.6887 Tj +0 -303.7875 Td +(5779 // On real hardware would want to tune this dynamically.) 266.4794 Tj +0 -313.2809 Td +(5780 static void) 69.8962 Tj +0 -322.7743 Td +(5781 microdelay\(int us\)) 100.4758 Tj +0 -332.2676 Td +(5782 {) 26.2111 Tj 0 -341.761 Td -(5783 volatile int j = 0;) 113.581 Tj -0 -351.254 Td +(5783 volatile int j = 0;) 113.5814 Tj +0 -351.2543 Td (5784 ) 21.8426 Tj -0 -360.748 Td -(5785 // Send INIT interrupt to reset other CPU.) 214.057 Tj -0 -370.241 Td -(5786 lapic[ICRHI] = apicid<<24;) 144.161 Tj -0 -379.734 Td -(5787 lapic[ICRLO] = INIT | LEVEL;) 152.898 Tj -0 -389.228 Td -(5788 microdelay\(10\);) 96.1073 Tj -0 -398.721 Td +0 -360.7477 Td +(5785 while\(us-- > 0\)) 96.1073 Tj +0 -370.2411 Td +(5786 for\(j=0; j<10000; j++\);) 139.7925 Tj +0 -379.7344 Td +(5787 }) 26.2111 Tj +0 -389.2278 Td +(5788 ) 21.8426 Tj +0 -398.7211 Td (5789 ) 21.8426 Tj -0 -408.214 Td -(5790 // Send startup IPI \(twice!\) to enter bootstrap code.) 262.111 Tj -0 -417.708 Td -(5791 for\(i = 0; i < 2; i++\){) 131.055 Tj -0 -427.201 Td -(5792 lapic[ICRHI] = apicid<<24;) 152.898 Tj -0 -436.695 Td -(5793 lapic[ICRLO] = STARTUP | \(addr>>12\);) 196.583 Tj -0 -446.188 Td -(5794 for\(j=0; j<10000; j++\); // 200us) 183.478 Tj -0 -455.681 Td -(5795 }) 34.9481 Tj -0 -465.175 Td -(5796 }) 26.2111 Tj +0 -408.2145 Td +(5790 ) 21.8426 Tj +0 -417.7079 Td +(5791 ) 21.8426 Tj +0 -427.2012 Td +(5792 ) 21.8426 Tj +0 -436.6946 Td +(5793 ) 21.8426 Tj +0 -446.1879 Td +(5794 ) 21.8426 Tj +0 -455.6813 Td +(5795 ) 21.8426 Tj +0 -465.1747 Td +(5796 ) 21.8426 Tj 0 -474.668 Td (5797 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5798 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5799 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 57) 34.9481 Tj Q Q @@ -19413,8 +19393,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -19429,120 +19408,121 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/ioapic.c Page 1) 170.372 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/lapic.c Page 4) 166.0035 Tj 0 -28.4801 Td -(5800 // The I/O APIC manages hardware interrupts for an SMP sys\ -tem.) 292.69 Tj +(5800 #define IO_RTC 0x70) 109.2129 Tj 0 -37.9735 Td -(5801 // http://www.intel.com/design/chipsets/datashts/29056601.\ -pdf) 288.322 Tj +(5801 ) 21.8426 Tj 0 -47.4668 Td -(5802 // See also picirq.c.) 113.581 Tj +(5802 // Start additional processor running bootstrap code at ad\ +dr.) 288.322 Tj 0 -56.9602 Td -(5803 ) 21.8426 Tj +(5803 // See Appendix B of MultiProcessor Specification.) 240.2683 Tj 0 -66.4535 Td -(5804 #include "types.h") 100.476 Tj +(5804 void) 39.3166 Tj 0 -75.9469 Td -(5805 #include "defs.h") 96.1073 Tj +(5805 lapic_startap\(uchar apicid, uint addr\)) 187.8461 Tj 0 -85.4403 Td -(5806 #include "traps.h") 100.476 Tj +(5806 {) 26.2111 Tj 0 -94.9336 Td -(5807 ) 21.8426 Tj +(5807 int i;) 56.7907 Tj 0 -104.427 Td -(5808 #define IOAPIC 0xFEC00000 // Default physical address o\ -f IO APIC) 314.533 Tj -0 -113.92 Td +(5808 ushort *wrv;) 83.0018 Tj +0 -113.9203 Td (5809 ) 21.8426 Tj -0 -123.414 Td -(5810 #define REG_ID 0x00 // Register index: ID) 222.794 Tj -0 -132.907 Td -(5811 #define REG_VER 0x01 // Register index: version) 244.637 Tj -0 -142.4 Td -(5812 #define REG_TABLE 0x10 // Redirection table base) 240.268 Tj -0 -151.894 Td -(5813 ) 21.8426 Tj -0 -161.387 Td -(5814 // The redirection table starts at REG_TABLE and uses) 253.374 Tj -0 -170.88 Td -(5815 // two registers to configure each interrupt.) 218.426 Tj -0 -180.374 Td -(5816 // The first \(low\) register in a pair contains configura\ -tion bits.) 310.165 Tj -0 -189.867 Td -(5817 // The second \(high\) register contains a bitmask telling\ - which) 292.69 Tj -0 -199.361 Td -(5818 // CPUs can serve that interrupt.) 166.004 Tj -0 -208.854 Td -(5819 #define INT_DISABLED 0x00100000 // Interrupt disabled) 266.479 Tj -0 -218.347 Td -(5820 #define INT_LEVEL 0x00008000 // Level-triggered \(vs\ - edge-\)) 301.427 Tj -0 -227.841 Td -(5821 #define INT_ACTIVELOW 0x00002000 // Active low \(vs high\ -\)) 275.216 Tj +0 -123.4137 Td +(5810 // "The BSP must initialize CMOS shutdown code to 0AH) 262.1109 Tj +0 -132.9071 Td +(5811 // and the warm reset vector \(DWORD based at 40:67\) to\ + point at) 305.796 Tj +0 -142.4004 Td +(5812 // the AP startup code prior to the [universal startup a\ +lgorithm].") 323.2701 Tj +0 -151.8938 Td +(5813 outb\(IO_RTC, 0xF\); // offset 0xF is shutdown code) 249.0053 Tj +0 -161.3871 Td +(5814 outb\(IO_RTC+1, 0x0A\);) 122.3184 Tj +0 -170.8805 Td +(5815 wrv = \(ushort*\)\(0x40<<4 | 0x67\); // Warm reset vect\ +or) 266.4794 Tj +0 -180.3739 Td +(5816 wrv[0] = 0;) 78.6333 Tj +0 -189.8672 Td +(5817 wrv[1] = addr >> 4;) 113.5814 Tj +0 -199.3606 Td +(5818 ) 21.8426 Tj +0 -208.8539 Td +(5819 // "Universal startup algorithm.") 174.7406 Tj +0 -218.3473 Td +(5820 // Send INIT \(level-triggered\) interrupt to reset othe\ +r CPU.) 292.6905 Tj +0 -227.8407 Td +(5821 lapicw\(ICRHI, apicid<<24\);) 144.161 Tj 0 -237.334 Td -(5822 #define INT_LOGICAL 0x00000800 // Destination is CPU i\ -d \(vs APIC ID\)) 336.376 Tj -0 -246.827 Td -(5823 ) 21.8426 Tj -0 -256.321 Td -(5824 volatile struct ioapic *ioapic;) 157.267 Tj -0 -265.814 Td -(5825 ) 21.8426 Tj -0 -275.307 Td -(5826 // IO APIC MMIO structure: write reg, then read or write d\ -ata.) 292.69 Tj -0 -284.801 Td -(5827 struct ioapic {) 87.3703 Tj -0 -294.294 Td -(5828 uint reg;) 69.8962 Tj -0 -303.788 Td -(5829 uint pad[3];) 83.0018 Tj -0 -313.281 Td -(5830 uint data;) 74.2647 Tj -0 -322.774 Td -(5831 };) 30.5796 Tj -0 -332.268 Td -(5832 ) 21.8426 Tj +(5822 lapicw\(ICRLO, INIT | LEVEL | ASSERT\);) 192.2146 Tj +0 -246.8274 Td +(5823 microdelay\(200\);) 100.4758 Tj +0 -256.3207 Td +(5824 lapicw\(ICRLO, INIT | LEVEL\);) 152.898 Tj +0 -265.8141 Td +(5825 microdelay\(100\);) 100.4758 Tj +-500.868 TJm +(// should be 10ms, but too slow in Bochs!) 179.1091 Tj +0 -275.3075 Td +(5826 ) 21.8426 Tj +0 -284.8008 Td +(5827 // Send startup IPI \(twice!\) to enter bootstrap code.) 262.1109 Tj +0 -294.2942 Td +(5828 // Regular hardware is supposed to only accept a STARTUP) 275.2164 Tj +0 -303.7875 Td +(5829 // when it is in the halted state due to an INIT. So th\ +e second) 310.1645 Tj +0 -313.2809 Td +(5830 // should be ignored, but it is part of the official Int\ +el algorithm.) 332.0071 Tj +0 -322.7743 Td +(5831 // Bochs complains about the second one. Too bad for Bo\ +chs.) 292.6905 Tj +0 -332.2676 Td +(5832 for\(i = 0; i < 2; i++\){) 131.0554 Tj 0 -341.761 Td -(5833 static uint) 69.8962 Tj -0 -351.254 Td -(5834 ioapic_read\(int reg\)) 109.213 Tj -0 -360.748 Td -(5835 {) 26.2111 Tj -0 -370.241 Td -(5836 ioapic->reg = reg;) 109.213 Tj -0 -379.734 Td -(5837 return ioapic->data;) 117.95 Tj -0 -389.228 Td -(5838 }) 26.2111 Tj -0 -398.721 Td +(5833 lapicw\(ICRHI, apicid<<24\);) 152.898 Tj +0 -351.2543 Td +(5834 lapicw\(ICRLO, STARTUP | \(addr>>12\)\);) 196.5831 Tj +0 -360.7477 Td +(5835 microdelay\(200\);) 109.2129 Tj +0 -370.2411 Td +(5836 }) 34.9481 Tj +0 -379.7344 Td +(5837 }) 26.2111 Tj +0 -389.2278 Td +(5838 ) 21.8426 Tj +0 -398.7211 Td (5839 ) 21.8426 Tj -0 -408.214 Td -(5840 static void) 69.8962 Tj -0 -417.708 Td -(5841 ioapic_write\(int reg, uint data\)) 161.635 Tj -0 -427.201 Td -(5842 {) 26.2111 Tj -0 -436.695 Td -(5843 ioapic->reg = reg;) 109.213 Tj -0 -446.188 Td -(5844 ioapic->data = data;) 117.95 Tj -0 -455.681 Td -(5845 }) 26.2111 Tj -0 -465.175 Td +0 -408.2145 Td +(5840 ) 21.8426 Tj +0 -417.7079 Td +(5841 ) 21.8426 Tj +0 -427.2012 Td +(5842 ) 21.8426 Tj +0 -436.6946 Td +(5843 ) 21.8426 Tj +0 -446.1879 Td +(5844 ) 21.8426 Tj +0 -455.6813 Td +(5845 ) 21.8426 Tj +0 -465.1747 Td (5846 ) 21.8426 Tj 0 -474.668 Td (5847 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5848 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5849 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 58) 34.9481 Tj Q Q @@ -19557,114 +19537,120 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/ioapic.c Page 2) 170.372 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/ioapic.c Page 1) 170.3721 Tj 0 -28.4801 Td -(5850 void) 39.3166 Tj +(5850 // The I/O APIC manages hardware interrupts for an SMP sys\ +tem.) 292.6905 Tj 0 -37.9735 Td -(5851 ioapic_init\(void\)) 96.1073 Tj +(5851 // http://www.intel.com/design/chipsets/datashts/29056601.\ +pdf) 288.322 Tj 0 -47.4668 Td -(5852 {) 26.2111 Tj +(5852 // See also picirq.c.) 113.5814 Tj 0 -56.9602 Td -(5853 int i, id, maxintr;) 113.581 Tj +(5853 ) 21.8426 Tj 0 -66.4535 Td -(5854 ) 21.8426 Tj +(5854 #include "types.h") 100.4758 Tj 0 -75.9469 Td -(5855 if\(!ismp\)) 69.8962 Tj +(5855 #include "defs.h") 96.1073 Tj 0 -85.4403 Td -(5856 return;) 69.8962 Tj +(5856 #include "traps.h") 100.4758 Tj 0 -94.9336 Td (5857 ) 21.8426 Tj 0 -104.427 Td -(5858 ioapic = \(volatile struct ioapic*\)IOAPIC;) 209.689 Tj -0 -113.92 Td -(5859 maxintr = \(ioapic_read\(REG_VER\) >> 16\) & 0xFF;) 231.531 Tj -0 -123.414 Td -(5860 id = ioapic_read\(REG_ID\) >> 24;) 166.004 Tj -0 -132.907 Td -(5861 if\(id != ioapic_id\)) 113.581 Tj -0 -142.4 Td -(5862 cprintf\("ioapic_init: id isn't equal to ioapic_id; no\ -t a MP\\n"\);) 318.902 Tj -0 -151.894 Td +(5858 #define IOAPIC 0xFEC00000 // Default physical address o\ +f IO APIC) 314.533 Tj +0 -113.9203 Td +(5859 ) 21.8426 Tj +0 -123.4137 Td +(5860 #define REG_ID 0x00 // Register index: ID) 222.7942 Tj +0 -132.9071 Td +(5861 #define REG_VER 0x01 // Register index: version) 244.6368 Tj +0 -142.4004 Td +(5862 #define REG_TABLE 0x10 // Redirection table base) 240.2683 Tj +0 -151.8938 Td (5863 ) 21.8426 Tj -0 -161.387 Td -(5864 // Mark all interrupts edge-triggered, active high, disa\ -bled,) 297.059 Tj -0 -170.88 Td -(5865 // and not routed to any CPUs.) 161.635 Tj -0 -180.374 Td -(5866 for\(i = 0; i <= maxintr; i++\){) 161.635 Tj -0 -189.867 Td -(5867 ioapic_write\(REG_TABLE+2*i, INT_DISABLED | \(IRQ_OFFS\ -ET + i\)\);) 305.796 Tj -0 -199.361 Td -(5868 ioapic_write\(REG_TABLE+2*i+1, 0\);) 183.478 Tj -0 -208.854 Td -(5869 }) 34.9481 Tj -0 -218.347 Td -(5870 }) 26.2111 Tj -0 -227.841 Td -(5871 ) 21.8426 Tj +0 -161.3871 Td +(5864 // The redirection table starts at REG_TABLE and uses) 253.3738 Tj +0 -170.8805 Td +(5865 // two registers to configure each interrupt.) 218.4257 Tj +0 -180.3739 Td +(5866 // The first \(low\) register in a pair contains configura\ +tion bits.) 310.1645 Tj +0 -189.8672 Td +(5867 // The second \(high\) register contains a bitmask telling\ + which) 292.6905 Tj +0 -199.3606 Td +(5868 // CPUs can serve that interrupt.) 166.0035 Tj +0 -208.8539 Td +(5869 #define INT_DISABLED 0x00010000 // Interrupt disabled) 266.4794 Tj +0 -218.3473 Td +(5870 #define INT_LEVEL 0x00008000 // Level-triggered \(vs\ + edge-\)) 301.4275 Tj +0 -227.8407 Td +(5871 #define INT_ACTIVELOW 0x00002000 // Active low \(vs high\ +\)) 275.2164 Tj 0 -237.334 Td -(5872 void) 39.3166 Tj -0 -246.827 Td -(5873 ioapic_enable\(int irq, int cpunum\)) 170.372 Tj -0 -256.321 Td -(5874 {) 26.2111 Tj -0 -265.814 Td -(5875 if\(!ismp\)) 69.8962 Tj -0 -275.307 Td -(5876 return;) 69.8962 Tj -0 -284.801 Td -(5877 ) 21.8426 Tj -0 -294.294 Td -(5878 // Mark interrupt edge-triggered, active high,) 231.531 Tj -0 -303.788 Td -(5879 // enabled, and routed to the given cpunum,) 218.426 Tj -0 -313.281 Td -(5880 // which happens to be that cpu's APIC ID.) 214.057 Tj -0 -322.774 Td -(5881 ioapic_write\(REG_TABLE+2*irq, IRQ_OFFSET + irq\);) 240.268 Tj -0 -332.268 Td -(5882 ioapic_write\(REG_TABLE+2*irq+1, cpunum << 24\);) 231.531 Tj +(5872 #define INT_LOGICAL 0x00000800 // Destination is CPU i\ +d \(vs APIC ID\)) 336.3756 Tj +0 -246.8274 Td +(5873 ) 21.8426 Tj +0 -256.3207 Td +(5874 volatile struct ioapic *ioapic;) 157.2665 Tj +0 -265.8141 Td +(5875 ) 21.8426 Tj +0 -275.3075 Td +(5876 // IO APIC MMIO structure: write reg, then read or write d\ +ata.) 292.6905 Tj +0 -284.8008 Td +(5877 struct ioapic {) 87.3703 Tj +0 -294.2942 Td +(5878 uint reg;) 69.8962 Tj +0 -303.7875 Td +(5879 uint pad[3];) 83.0018 Tj +0 -313.2809 Td +(5880 uint data;) 74.2647 Tj +0 -322.7743 Td +(5881 };) 30.5796 Tj +0 -332.2676 Td +(5882 ) 21.8426 Tj 0 -341.761 Td -(5883 }) 26.2111 Tj -0 -351.254 Td -(5884 ) 21.8426 Tj -0 -360.748 Td -(5885 ) 21.8426 Tj -0 -370.241 Td -(5886 ) 21.8426 Tj -0 -379.734 Td -(5887 ) 21.8426 Tj -0 -389.228 Td -(5888 ) 21.8426 Tj -0 -398.721 Td +(5883 static uint) 69.8962 Tj +0 -351.2543 Td +(5884 ioapic_read\(int reg\)) 109.2129 Tj +0 -360.7477 Td +(5885 {) 26.2111 Tj +0 -370.2411 Td +(5886 ioapic->reg = reg;) 109.2129 Tj +0 -379.7344 Td +(5887 return ioapic->data;) 117.9499 Tj +0 -389.2278 Td +(5888 }) 26.2111 Tj +0 -398.7211 Td (5889 ) 21.8426 Tj -0 -408.214 Td -(5890 ) 21.8426 Tj -0 -417.708 Td -(5891 ) 21.8426 Tj -0 -427.201 Td -(5892 ) 21.8426 Tj -0 -436.695 Td -(5893 ) 21.8426 Tj -0 -446.188 Td -(5894 ) 21.8426 Tj -0 -455.681 Td -(5895 ) 21.8426 Tj -0 -465.175 Td +0 -408.2145 Td +(5890 static void) 69.8962 Tj +0 -417.7079 Td +(5891 ioapic_write\(int reg, uint data\)) 161.635 Tj +0 -427.2012 Td +(5892 {) 26.2111 Tj +0 -436.6946 Td +(5893 ioapic->reg = reg;) 109.2129 Tj +0 -446.1879 Td +(5894 ioapic->data = data;) 117.9499 Tj +0 -455.6813 Td +(5895 }) 26.2111 Tj +0 -465.1747 Td (5896 ) 21.8426 Tj 0 -474.668 Td (5897 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (5898 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (5899 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 58) 34.9481 Tj Q Q @@ -19693,8 +19679,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -19709,114 +19694,114 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/picirq.c Page 1) 170.372 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/ioapic.c Page 2) 170.3721 Tj 0 -28.4801 Td -(5900 // Intel 8259A programmable interrupt controllers.) 240.268 Tj +(5900 void) 39.3166 Tj 0 -37.9735 Td -(5901 ) 21.8426 Tj +(5901 ioapic_init\(void\)) 96.1073 Tj 0 -47.4668 Td -(5902 #include "types.h") 100.476 Tj +(5902 {) 26.2111 Tj 0 -56.9602 Td -(5903 #include "x86.h") 91.7388 Tj +(5903 int i, id, maxintr;) 113.5814 Tj 0 -66.4535 Td -(5904 #include "traps.h") 100.476 Tj +(5904 ) 21.8426 Tj 0 -75.9469 Td -(5905 ) 21.8426 Tj +(5905 if\(!ismp\)) 69.8962 Tj 0 -85.4403 Td -(5906 // I/O Addresses of the two programmable interrupt control\ -lers) 292.69 Tj +(5906 return;) 69.8962 Tj 0 -94.9336 Td -(5907 #define IO_PIC1 0x20 // Master \(IRQs 0-7\)) 249.005 Tj +(5907 ) 21.8426 Tj 0 -104.427 Td -(5908 #define IO_PIC2 0xA0 // Slave \(IRQs 8-15\)) 249.005 Tj -0 -113.92 Td -(5909 ) 21.8426 Tj -0 -123.414 Td -(5910 #define IRQ_SLAVE 2 // IRQ at which slave conn\ -ects to master) 336.376 Tj -0 -132.907 Td -(5911 ) 21.8426 Tj -0 -142.4 Td -(5912 // Current IRQ mask.) 109.213 Tj -0 -151.894 Td -(5913 // Initial IRQ mask has interrupt 2 enabled \(for slave 82\ -59A\).) 292.69 Tj -0 -161.387 Td -(5914 static ushort irqmask = 0xFFFF & ~\(1<> 8\);) 148.529 Tj +(5908 ioapic = \(volatile struct ioapic*\)IOAPIC;) 209.6887 Tj +0 -113.9203 Td +(5909 maxintr = \(ioapic_read\(REG_VER\) >> 16\) & 0xFF;) 231.5313 Tj +0 -123.4137 Td +(5910 id = ioapic_read\(REG_ID\) >> 24;) 166.0035 Tj +0 -132.9071 Td +(5911 if\(id != ioapic_id\)) 113.5814 Tj +0 -142.4004 Td +(5912 cprintf\("ioapic_init: id isn't equal to ioapic_id; no\ +t a MP\\n"\);) 318.9016 Tj +0 -151.8938 Td +(5913 ) 21.8426 Tj +0 -161.3871 Td +(5914 // Mark all interrupts edge-triggered, active high, disa\ +bled,) 297.059 Tj +0 -170.8805 Td +(5915 // and not routed to any CPUs.) 161.635 Tj +0 -180.3739 Td +(5916 for\(i = 0; i <= maxintr; i++\){) 161.635 Tj +0 -189.8672 Td +(5917 ioapic_write\(REG_TABLE+2*i, INT_DISABLED | \(IRQ_OFFS\ +ET + i\)\);) 305.796 Tj +0 -199.3606 Td +(5918 ioapic_write\(REG_TABLE+2*i+1, 0\);) 183.4776 Tj +0 -208.8539 Td +(5919 }) 34.9481 Tj +0 -218.3473 Td +(5920 }) 26.2111 Tj +0 -227.8407 Td +(5921 ) 21.8426 Tj 0 -237.334 Td -(5922 }) 26.2111 Tj -0 -246.827 Td -(5923 ) 21.8426 Tj -0 -256.321 Td -(5924 void) 39.3166 Tj -0 -265.814 Td -(5925 pic_enable\(int irq\)) 104.844 Tj -0 -275.307 Td -(5926 {) 26.2111 Tj -0 -284.801 Td -(5927 pic_setmask\(irqmask & ~\(1<> 8\);) 148.5295 Tj 0 -237.334 Td -(5972 // OCW3: 0ef01prs) 109.213 Tj -0 -246.827 Td -(5973 // ef: 0x = NOP, 10 = clear specific mask, 11 = set s\ -pecific mask) 327.639 Tj -0 -256.321 Td -(5974 // p: 0 = no polling, 1 = polling mode) 214.057 Tj -0 -265.814 Td -(5975 // rs: 0x = NOP, 10 = read IRR, 11 = read ISR) 240.268 Tj -0 -275.307 Td -(5976 outb\(IO_PIC1, 0x68\); // clear specific mas\ -k) 270.848 Tj -0 -284.801 Td -(5977 outb\(IO_PIC1, 0x0a\); // read IRR by defaul\ -t) 270.848 Tj -0 -294.294 Td -(5978 ) 21.8426 Tj -0 -303.788 Td -(5979 outb\(IO_PIC2, 0x68\); // OCW3) 205.32 Tj -0 -313.281 Td -(5980 outb\(IO_PIC2, 0x0a\); // OCW3) 205.32 Tj -0 -322.774 Td -(5981 ) 21.8426 Tj -0 -332.268 Td -(5982 if\(irqmask != 0xFFFF\)) 122.318 Tj +(5972 }) 26.2111 Tj +0 -246.8274 Td +(5973 ) 21.8426 Tj +0 -256.3207 Td +(5974 void) 39.3166 Tj +0 -265.8141 Td +(5975 pic_enable\(int irq\)) 104.8443 Tj +0 -275.3075 Td +(5976 {) 26.2111 Tj +0 -284.8008 Td +(5977 pic_setmask\(irqmask & ~\(1<', '?', NO, '*', // 0x30) 270.848 Tj -0 -322.774 Td -(6081 NO, ' ', NO, NO, NO, NO, NO, NO,) 227.163 Tj -0 -332.268 Td -(6082 NO, NO, NO, NO, NO, NO, NO, '7', // 0x40) 270.848 Tj +(6072 #define KEY_DN 0xE3) 144.161 Tj +0 -246.8274 Td +(6073 #define KEY_LF 0xE4) 144.161 Tj +0 -256.3207 Td +(6074 #define KEY_RT 0xE5) 144.161 Tj +0 -265.8141 Td +(6075 #define KEY_PGUP 0xE6) 144.161 Tj +0 -275.3075 Td +(6076 #define KEY_PGDN 0xE7) 144.161 Tj +0 -284.8008 Td +(6077 #define KEY_INS 0xE8) 144.161 Tj +0 -294.2942 Td +(6078 #define KEY_DEL 0xE9) 144.161 Tj +0 -303.7875 Td +(6079 ) 21.8426 Tj +0 -313.2809 Td +(6080 // C\('A'\) == Control-A) 117.9499 Tj +0 -322.7743 Td +(6081 #define C\(x\) \(x - '@'\)) 117.9499 Tj +0 -332.2676 Td +(6082 ) 21.8426 Tj 0 -341.761 Td -(6083 '8', '9', '-', '4', '5', '6', '+', '1',) 231.531 Tj -0 -351.254 Td -(6084 '2', '3', '0', '.', NO, NO, NO, NO, // 0x50) 270.848 Tj -0 -360.748 Td -(6085 [0x9C] '\\n', // KP_Enter) 157.267 Tj -0 -370.241 Td -(6086 [0xB5] '/', // KP_Div) 148.529 Tj -0 -379.734 Td -(6087 [0xC8] KEY_UP, [0xD0] KEY_DN,) 170.372 Tj -0 -389.228 Td -(6088 [0xC9] KEY_PGUP, [0xD1] KEY_PGDN,) 179.109 Tj -0 -398.721 Td -(6089 [0xCB] KEY_LF, [0xCD] KEY_RT,) 170.372 Tj -0 -408.214 Td -(6090 [0x97] KEY_HOME, [0xCF] KEY_END,) 174.741 Tj -0 -417.708 Td -(6091 [0xD2] KEY_INS, [0xD3] KEY_DEL) 170.372 Tj -0 -427.201 Td -(6092 };) 30.5796 Tj -0 -436.695 Td -(6093 ) 21.8426 Tj -0 -446.188 Td -(6094 ) 21.8426 Tj -0 -455.681 Td -(6095 ) 21.8426 Tj -0 -465.175 Td -(6096 ) 21.8426 Tj +(6083 static uchar shiftcode[256] =) 148.5295 Tj +0 -351.2543 Td +(6084 {) 26.2111 Tj +0 -360.7477 Td +(6085 [0x1D] CTL,) 78.6333 Tj +0 -370.2411 Td +(6086 [0x2A] SHIFT,) 87.3703 Tj +0 -379.7344 Td +(6087 [0x36] SHIFT,) 87.3703 Tj +0 -389.2278 Td +(6088 [0x38] ALT,) 78.6333 Tj +0 -398.7211 Td +(6089 [0x9D] CTL,) 78.6333 Tj +0 -408.2145 Td +(6090 [0xB8] ALT) 74.2647 Tj +0 -417.7079 Td +(6091 };) 30.5796 Tj +0 -427.2012 Td +(6092 ) 21.8426 Tj +0 -436.6946 Td +(6093 static uchar togglecode[256] =) 152.898 Tj +0 -446.1879 Td +(6094 {) 26.2111 Tj +0 -455.6813 Td +(6095 [0x3A] CAPSLOCK,) 100.4758 Tj +0 -465.1747 Td +(6096 [0x45] NUMLOCK,) 96.1073 Tj 0 -474.668 Td -(6097 ) 21.8426 Tj -0 -484.161 Td -(6098 ) 21.8426 Tj -0 -493.655 Td +(6097 [0x46] SCROLLLOCK) 104.8443 Tj +0 -484.1614 Td +(6098 };) 30.5796 Tj +0 -493.6547 Td (6099 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 60) 34.9481 Tj Q Q @@ -20239,8 +20226,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -20255,118 +20241,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/kbd.h Page 3) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/kbd.h Page 2) 157.2665 Tj 0 -28.4801 Td -(6100 static uchar ctlmap[256] =) 135.424 Tj +(6100 static uchar normalmap[256] =) 148.5295 Tj 0 -37.9735 Td (6101 {) 26.2111 Tj 0 -47.4668 Td -(6102 NO, NO, NO, NO, NO, NO, NO\ -, NO,) 318.902 Tj +(6102 NO, 0x1B, '1', '2', '3', '4', '5', '6', // 0x00) 270.8479 Tj 0 -56.9602 Td -(6103 NO, NO, NO, NO, NO, NO, NO\ -, NO,) 318.902 Tj +(6103 '7', '8', '9', '0', '-', '=', '\\b', '\\t',) 235.8998 Tj 0 -66.4535 Td -(6104 C\('Q'\), C\('W'\), C\('E'\), C\('R'\), C\('T'\), C\ -\('Y'\), C\('U'\), C\('I'\),) 336.376 Tj +(6104 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', // 0x10) 270.8479 Tj 0 -75.9469 Td -(6105 C\('O'\), C\('P'\), NO, NO, '\\r', NO, \ - C\('A'\), C\('S'\),) 336.376 Tj +(6105 'o', 'p', '[', ']', '\\n', NO, 'a', 's',) 231.5313 Tj 0 -85.4403 Td -(6106 C\('D'\), C\('F'\), C\('G'\), C\('H'\), C\('J'\), C\ -\('K'\), C\('L'\), NO,) 318.902 Tj +(6106 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', // 0x20) 270.8479 Tj 0 -94.9336 Td -(6107 NO, NO, NO, C\('\\\\'\), C\('Z'\), C\('X\ -'\), C\('C'\), C\('V'\),) 336.376 Tj +(6107 '\\'', '`', NO, '\\\\', 'z', 'x', 'c', 'v',) 231.5313 Tj 0 -104.427 Td -(6108 C\('B'\), C\('N'\), C\('M'\), NO, NO, C\('/\ -'\), NO, NO,) 318.902 Tj -0 -113.92 Td -(6109 [0x9C] '\\r', // KP_Enter) 157.267 Tj -0 -123.414 Td -(6110 [0xB5] C\('/'\), // KP_Div) 148.529 Tj -0 -132.907 Td -(6111 [0xC8] KEY_UP, [0xD0] KEY_DN,) 170.372 Tj -0 -142.4 Td -(6112 [0xC9] KEY_PGUP, [0xD1] KEY_PGDN,) 179.109 Tj -0 -151.894 Td -(6113 [0xCB] KEY_LF, [0xCD] KEY_RT,) 170.372 Tj -0 -161.387 Td -(6114 [0x97] KEY_HOME, [0xCF] KEY_END,) 174.741 Tj -0 -170.88 Td -(6115 [0xD2] KEY_INS, [0xD3] KEY_DEL) 170.372 Tj -0 -180.374 Td -(6116 };) 30.5796 Tj -0 -189.867 Td -(6117 ) 21.8426 Tj -0 -199.361 Td -(6118 ) 21.8426 Tj -0 -208.854 Td -(6119 ) 21.8426 Tj -0 -218.347 Td -(6120 ) 21.8426 Tj -0 -227.841 Td +(6108 'b', 'n', 'm', ',', '.', '/', NO, '*', // 0x30) 270.8479 Tj +0 -113.9203 Td +(6109 NO, ' ', NO, NO, NO, NO, NO, NO,) 227.1628 Tj +0 -123.4137 Td +(6110 NO, NO, NO, NO, NO, NO, NO, '7', // 0x40) 270.8479 Tj +0 -132.9071 Td +(6111 '8', '9', '-', '4', '5', '6', '+', '1',) 231.5313 Tj +0 -142.4004 Td +(6112 '2', '3', '0', '.', NO, NO, NO, NO, // 0x50) 270.8479 Tj +0 -151.8938 Td +(6113 [0x9C] '\\n', // KP_Enter) 157.2665 Tj +0 -161.3871 Td +(6114 [0xB5] '/', // KP_Div) 148.5295 Tj +0 -170.8805 Td +(6115 [0xC8] KEY_UP, [0xD0] KEY_DN,) 170.3721 Tj +0 -180.3739 Td +(6116 [0xC9] KEY_PGUP, [0xD1] KEY_PGDN,) 179.1091 Tj +0 -189.8672 Td +(6117 [0xCB] KEY_LF, [0xCD] KEY_RT,) 170.3721 Tj +0 -199.3606 Td +(6118 [0x97] KEY_HOME, [0xCF] KEY_END,) 174.7406 Tj +0 -208.8539 Td +(6119 [0xD2] KEY_INS, [0xD3] KEY_DEL) 170.3721 Tj +0 -218.3473 Td +(6120 };) 30.5796 Tj +0 -227.8407 Td (6121 ) 21.8426 Tj 0 -237.334 Td -(6122 ) 21.8426 Tj -0 -246.827 Td -(6123 ) 21.8426 Tj -0 -256.321 Td -(6124 ) 21.8426 Tj -0 -265.814 Td -(6125 ) 21.8426 Tj -0 -275.307 Td -(6126 ) 21.8426 Tj -0 -284.801 Td -(6127 ) 21.8426 Tj -0 -294.294 Td -(6128 ) 21.8426 Tj -0 -303.788 Td -(6129 ) 21.8426 Tj -0 -313.281 Td -(6130 ) 21.8426 Tj -0 -322.774 Td -(6131 ) 21.8426 Tj -0 -332.268 Td -(6132 ) 21.8426 Tj +(6122 static uchar shiftmap[256] =) 144.161 Tj +0 -246.8274 Td +(6123 {) 26.2111 Tj +0 -256.3207 Td +(6124 NO, 033, '!', '@', '#', '$', '%', '^', // 0x00) 270.8479 Tj +0 -265.8141 Td +(6125 '&', '*', '\(', '\)', '_', '+', '\\b', '\\t',) 235.8998 Tj +0 -275.3075 Td +(6126 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', // 0x10) 270.8479 Tj +0 -284.8008 Td +(6127 'O', 'P', '{', '}', '\\n', NO, 'A', 'S',) 231.5313 Tj +0 -294.2942 Td +(6128 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', // 0x20) 270.8479 Tj +0 -303.7875 Td +(6129 '"', '~', NO, '|', 'Z', 'X', 'C', 'V',) 231.5313 Tj +0 -313.2809 Td +(6130 'B', 'N', 'M', '<', '>', '?', NO, '*', // 0x30) 270.8479 Tj +0 -322.7743 Td +(6131 NO, ' ', NO, NO, NO, NO, NO, NO,) 227.1628 Tj +0 -332.2676 Td +(6132 NO, NO, NO, NO, NO, NO, NO, '7', // 0x40) 270.8479 Tj 0 -341.761 Td -(6133 ) 21.8426 Tj -0 -351.254 Td -(6134 ) 21.8426 Tj -0 -360.748 Td -(6135 ) 21.8426 Tj -0 -370.241 Td -(6136 ) 21.8426 Tj -0 -379.734 Td -(6137 ) 21.8426 Tj -0 -389.228 Td -(6138 ) 21.8426 Tj -0 -398.721 Td -(6139 ) 21.8426 Tj -0 -408.214 Td -(6140 ) 21.8426 Tj -0 -417.708 Td -(6141 ) 21.8426 Tj -0 -427.201 Td -(6142 ) 21.8426 Tj -0 -436.695 Td +(6133 '8', '9', '-', '4', '5', '6', '+', '1',) 231.5313 Tj +0 -351.2543 Td +(6134 '2', '3', '0', '.', NO, NO, NO, NO, // 0x50) 270.8479 Tj +0 -360.7477 Td +(6135 [0x9C] '\\n', // KP_Enter) 157.2665 Tj +0 -370.2411 Td +(6136 [0xB5] '/', // KP_Div) 148.5295 Tj +0 -379.7344 Td +(6137 [0xC8] KEY_UP, [0xD0] KEY_DN,) 170.3721 Tj +0 -389.2278 Td +(6138 [0xC9] KEY_PGUP, [0xD1] KEY_PGDN,) 179.1091 Tj +0 -398.7211 Td +(6139 [0xCB] KEY_LF, [0xCD] KEY_RT,) 170.3721 Tj +0 -408.2145 Td +(6140 [0x97] KEY_HOME, [0xCF] KEY_END,) 174.7406 Tj +0 -417.7079 Td +(6141 [0xD2] KEY_INS, [0xD3] KEY_DEL) 170.3721 Tj +0 -427.2012 Td +(6142 };) 30.5796 Tj +0 -436.6946 Td (6143 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (6144 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (6145 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (6146 ) 21.8426 Tj 0 -474.668 Td (6147 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6148 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6149 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 61) 34.9481 Tj Q Q @@ -20381,111 +20360,118 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/kbd.c Page 1) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/kbd.h Page 3) 157.2665 Tj 0 -28.4801 Td -(6150 #include "types.h") 100.476 Tj +(6150 static uchar ctlmap[256] =) 135.4239 Tj 0 -37.9735 Td -(6151 #include "x86.h") 91.7388 Tj +(6151 {) 26.2111 Tj 0 -47.4668 Td -(6152 #include "defs.h") 96.1073 Tj +(6152 NO, NO, NO, NO, NO, NO, NO\ +, NO,) 318.9016 Tj 0 -56.9602 Td -(6153 #include "kbd.h") 91.7388 Tj +(6153 NO, NO, NO, NO, NO, NO, NO\ +, NO,) 318.9016 Tj 0 -66.4535 Td -(6154 ) 21.8426 Tj +(6154 C\('Q'\), C\('W'\), C\('E'\), C\('R'\), C\('T'\), C\ +\('Y'\), C\('U'\), C\('I'\),) 336.3756 Tj 0 -75.9469 Td -(6155 int) 34.9481 Tj +(6155 C\('O'\), C\('P'\), NO, NO, '\\r', NO, \ + C\('A'\), C\('S'\),) 336.3756 Tj 0 -85.4403 Td -(6156 kbd_getc\(void\)) 83.0018 Tj +(6156 C\('D'\), C\('F'\), C\('G'\), C\('H'\), C\('J'\), C\ +\('K'\), C\('L'\), NO,) 318.9016 Tj 0 -94.9336 Td -(6157 {) 26.2111 Tj +(6157 NO, NO, NO, C\('\\\\'\), C\('Z'\), C\('X\ +'\), C\('C'\), C\('V'\),) 336.3756 Tj 0 -104.427 Td -(6158 static uint shift;) 109.213 Tj -0 -113.92 Td -(6159 static uchar *charcode[4] = {) 157.267 Tj -0 -123.414 Td -(6160 normalmap, shiftmap, ctlmap, ctlmap) 192.215 Tj -0 -132.907 Td -(6161 };) 39.3166 Tj -0 -142.4 Td -(6162 uint st, data, c;) 104.844 Tj -0 -151.894 Td -(6163 ) 21.8426 Tj -0 -161.387 Td -(6164 st = inb\(KBSTATP\);) 109.213 Tj -0 -170.88 Td -(6165 if\(\(st & KBS_DIB\) == 0\)) 131.055 Tj -0 -180.374 Td -(6166 return -1;) 83.0018 Tj -0 -189.867 Td -(6167 data = inb\(KBDATAP\);) 117.95 Tj -0 -199.361 Td +(6158 C\('B'\), C\('N'\), C\('M'\), NO, NO, C\('/\ +'\), NO, NO,) 318.9016 Tj +0 -113.9203 Td +(6159 [0x9C] '\\r', // KP_Enter) 157.2665 Tj +0 -123.4137 Td +(6160 [0xB5] C\('/'\), // KP_Div) 148.5295 Tj +0 -132.9071 Td +(6161 [0xC8] KEY_UP, [0xD0] KEY_DN,) 170.3721 Tj +0 -142.4004 Td +(6162 [0xC9] KEY_PGUP, [0xD1] KEY_PGDN,) 179.1091 Tj +0 -151.8938 Td +(6163 [0xCB] KEY_LF, [0xCD] KEY_RT,) 170.3721 Tj +0 -161.3871 Td +(6164 [0x97] KEY_HOME, [0xCF] KEY_END,) 174.7406 Tj +0 -170.8805 Td +(6165 [0xD2] KEY_INS, [0xD3] KEY_DEL) 170.3721 Tj +0 -180.3739 Td +(6166 };) 30.5796 Tj +0 -189.8672 Td +(6167 ) 21.8426 Tj +0 -199.3606 Td (6168 ) 21.8426 Tj -0 -208.854 Td -(6169 if\(data == 0xE0\){) 104.844 Tj -0 -218.347 Td -(6170 shift |= E0ESC;) 104.844 Tj -0 -227.841 Td -(6171 return 0;) 78.6333 Tj +0 -208.8539 Td +(6169 ) 21.8426 Tj +0 -218.3473 Td +(6170 ) 21.8426 Tj +0 -227.8407 Td +(6171 ) 21.8426 Tj 0 -237.334 Td -(6172 } else if\(data & 0x80\){) 131.055 Tj -0 -246.827 Td -(6173 // Key released) 104.844 Tj -0 -256.321 Td -(6174 data = \(shift & E0ESC ? data : data & 0x7F\);) 231.531 Tj -0 -265.814 Td -(6175 shift &= ~\(shiftcode[data] | E0ESC\);) 196.583 Tj -0 -275.307 Td -(6176 return 0;) 78.6333 Tj -0 -284.801 Td -(6177 } else if\(shift & E0ESC\){) 139.792 Tj -0 -294.294 Td -(6178 // Last character was an E0 escape; or with 0x80) 249.005 Tj -0 -303.788 Td -(6179 data |= 0x80;) 96.1073 Tj -0 -313.281 Td -(6180 shift &= ~E0ESC;) 109.213 Tj -0 -322.774 Td -(6181 }) 34.9481 Tj -0 -332.268 Td +(6172 ) 21.8426 Tj +0 -246.8274 Td +(6173 ) 21.8426 Tj +0 -256.3207 Td +(6174 ) 21.8426 Tj +0 -265.8141 Td +(6175 ) 21.8426 Tj +0 -275.3075 Td +(6176 ) 21.8426 Tj +0 -284.8008 Td +(6177 ) 21.8426 Tj +0 -294.2942 Td +(6178 ) 21.8426 Tj +0 -303.7875 Td +(6179 ) 21.8426 Tj +0 -313.2809 Td +(6180 ) 21.8426 Tj +0 -322.7743 Td +(6181 ) 21.8426 Tj +0 -332.2676 Td (6182 ) 21.8426 Tj 0 -341.761 Td -(6183 shift |= shiftcode[data];) 139.792 Tj -0 -351.254 Td -(6184 shift ^= togglecode[data];) 144.161 Tj -0 -360.748 Td -(6185 c = charcode[shift & \(CTL | SHIFT\)][data];) 214.057 Tj -0 -370.241 Td -(6186 if\(shift & CAPSLOCK\){) 122.318 Tj -0 -379.734 Td -(6187 if\('a' <= c && c <= 'z'\)) 144.161 Tj -0 -389.228 Td -(6188 c += 'A' - 'a';) 113.581 Tj -0 -398.721 Td -(6189 else if\('A' <= c && c <= 'Z'\)) 166.004 Tj -0 -408.214 Td -(6190 c += 'a' - 'A';) 113.581 Tj -0 -417.708 Td -(6191 }) 34.9481 Tj -0 -427.201 Td -(6192 return c;) 69.8962 Tj -0 -436.695 Td -(6193 }) 26.2111 Tj -0 -446.188 Td +(6183 ) 21.8426 Tj +0 -351.2543 Td +(6184 ) 21.8426 Tj +0 -360.7477 Td +(6185 ) 21.8426 Tj +0 -370.2411 Td +(6186 ) 21.8426 Tj +0 -379.7344 Td +(6187 ) 21.8426 Tj +0 -389.2278 Td +(6188 ) 21.8426 Tj +0 -398.7211 Td +(6189 ) 21.8426 Tj +0 -408.2145 Td +(6190 ) 21.8426 Tj +0 -417.7079 Td +(6191 ) 21.8426 Tj +0 -427.2012 Td +(6192 ) 21.8426 Tj +0 -436.6946 Td +(6193 ) 21.8426 Tj +0 -446.1879 Td (6194 ) 21.8426 Tj -0 -455.681 Td -(6195 void) 39.3166 Tj -0 -465.175 Td -(6196 kbd_intr\(void\)) 83.0018 Tj +0 -455.6813 Td +(6195 ) 21.8426 Tj +0 -465.1747 Td +(6196 ) 21.8426 Tj 0 -474.668 Td -(6197 {) 26.2111 Tj -0 -484.161 Td -(6198 console_intr\(kbd_getc\);) 131.055 Tj -0 -493.655 Td -(6199 }) 26.2111 Tj -0 -522.135 Td +(6197 ) 21.8426 Tj +0 -484.1614 Td +(6198 ) 21.8426 Tj +0 -493.6547 Td +(6199 ) 21.8426 Tj +0 -522.1348 Td (Sheet 61) 34.9481 Tj Q Q @@ -20514,8 +20500,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -20530,113 +20515,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/console.c Page 1) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/kbd.c Page 1) 157.2665 Tj 0 -28.4801 Td -(6200 // Console input and output.) 144.161 Tj +(6200 #include "types.h") 100.4758 Tj 0 -37.9735 Td -(6201 // Input is from the keyboard only.) 174.741 Tj +(6201 #include "x86.h") 91.7388 Tj 0 -47.4668 Td -(6202 // Output is written to the screen and the printer port.) 266.479 Tj +(6202 #include "defs.h") 96.1073 Tj 0 -56.9602 Td -(6203 ) 21.8426 Tj +(6203 #include "kbd.h") 91.7388 Tj 0 -66.4535 Td -(6204 #include "types.h") 100.476 Tj +(6204 ) 21.8426 Tj 0 -75.9469 Td -(6205 #include "defs.h") 96.1073 Tj +(6205 int) 34.9481 Tj 0 -85.4403 Td -(6206 #include "param.h") 100.476 Tj +(6206 kbd_getc\(void\)) 83.0018 Tj 0 -94.9336 Td -(6207 #include "traps.h") 100.476 Tj +(6207 {) 26.2111 Tj 0 -104.427 Td -(6208 #include "spinlock.h") 113.581 Tj -0 -113.92 Td -(6209 #include "dev.h") 91.7388 Tj -0 -123.414 Td -(6210 #include "mmu.h") 91.7388 Tj -0 -132.907 Td -(6211 #include "proc.h") 96.1073 Tj -0 -142.4 Td -(6212 #include "x86.h") 91.7388 Tj -0 -151.894 Td +(6208 static uint shift;) 109.2129 Tj +0 -113.9203 Td +(6209 static uchar *charcode[4] = {) 157.2665 Tj +0 -123.4137 Td +(6210 normalmap, shiftmap, ctlmap, ctlmap) 192.2146 Tj +0 -132.9071 Td +(6211 };) 39.3166 Tj +0 -142.4004 Td +(6212 uint st, data, c;) 104.8443 Tj +0 -151.8938 Td (6213 ) 21.8426 Tj -0 -161.387 Td -(6214 #define CRTPORT 0x3d4) 113.581 Tj -0 -170.88 Td -(6215 #define LPTPORT 0x378) 113.581 Tj -0 -180.374 Td -(6216 #define BACKSPACE 0x100) 122.318 Tj -0 -189.867 Td -(6217 ) 21.8426 Tj -0 -199.361 Td -(6218 static ushort *crt = \(ushort*\)0xb8000; // CGA memory) 253.374 Tj -0 -208.854 Td -(6219 ) 21.8426 Tj -0 -218.347 Td -(6220 static struct spinlock console_lock;) 179.109 Tj -0 -227.841 Td -(6221 int panicked = 0;) 96.1073 Tj +0 -161.3871 Td +(6214 st = inb\(KBSTATP\);) 109.2129 Tj +0 -170.8805 Td +(6215 if\(\(st & KBS_DIB\) == 0\)) 131.0554 Tj +0 -180.3739 Td +(6216 return -1;) 83.0018 Tj +0 -189.8672 Td +(6217 data = inb\(KBDATAP\);) 117.9499 Tj +0 -199.3606 Td +(6218 ) 21.8426 Tj +0 -208.8539 Td +(6219 if\(data == 0xE0\){) 104.8443 Tj +0 -218.3473 Td +(6220 shift |= E0ESC;) 104.8443 Tj +0 -227.8407 Td +(6221 return 0;) 78.6333 Tj 0 -237.334 Td -(6222 int use_console_lock = 0;) 131.055 Tj -0 -246.827 Td -(6223 ) 21.8426 Tj -0 -256.321 Td -(6224 // Copy console output to parallel port, which you can tel\ -l) 279.585 Tj -0 -265.814 Td -(6225 // .bochsrc to copy to the stdout:) 170.372 Tj -0 -275.307 Td -(6226 // parport1: enabled=1, file="/dev/stdout") 214.057 Tj -0 -284.801 Td -(6227 static void) 69.8962 Tj -0 -294.294 Td -(6228 lpt_putc\(int c\)) 87.3703 Tj -0 -303.788 Td -(6229 {) 26.2111 Tj -0 -313.281 Td -(6230 int i;) 56.7907 Tj -0 -322.774 Td -(6231 ) 21.8426 Tj -0 -332.268 Td -(6232 for\(i = 0; !\(inb\(LPTPORT+1\) & 0x80\) && i < 12800; i\ -++\)) 266.479 Tj +(6222 } else if\(data & 0x80\){) 131.0554 Tj +0 -246.8274 Td +(6223 // Key released) 104.8443 Tj +0 -256.3207 Td +(6224 data = \(shift & E0ESC ? data : data & 0x7F\);) 231.5313 Tj +0 -265.8141 Td +(6225 shift &= ~\(shiftcode[data] | E0ESC\);) 196.5831 Tj +0 -275.3075 Td +(6226 return 0;) 78.6333 Tj +0 -284.8008 Td +(6227 } else if\(shift & E0ESC\){) 139.7925 Tj +0 -294.2942 Td +(6228 // Last character was an E0 escape; or with 0x80) 249.0053 Tj +0 -303.7875 Td +(6229 data |= 0x80;) 96.1073 Tj +0 -313.2809 Td +(6230 shift &= ~E0ESC;) 109.2129 Tj +0 -322.7743 Td +(6231 }) 34.9481 Tj +0 -332.2676 Td +(6232 ) 21.8426 Tj 0 -341.761 Td -(6233 ;) 43.6851 Tj -0 -351.254 Td -(6234 if\(c == BACKSPACE\)) 109.213 Tj -0 -360.748 Td -(6235 c = '\\b';) 78.6333 Tj -0 -370.241 Td -(6236 outb\(LPTPORT+0, c\);) 113.581 Tj -0 -379.734 Td -(6237 outb\(LPTPORT+2, 0x08|0x04|0x01\);) 170.372 Tj -0 -389.228 Td -(6238 outb\(LPTPORT+2, 0x08\);) 126.687 Tj -0 -398.721 Td -(6239 }) 26.2111 Tj -0 -408.214 Td -(6240 ) 21.8426 Tj -0 -417.708 Td -(6241 ) 21.8426 Tj -0 -427.201 Td -(6242 ) 21.8426 Tj -0 -436.695 Td -(6243 ) 21.8426 Tj -0 -446.188 Td +(6233 shift |= shiftcode[data];) 139.7925 Tj +0 -351.2543 Td +(6234 shift ^= togglecode[data];) 144.161 Tj +0 -360.7477 Td +(6235 c = charcode[shift & \(CTL | SHIFT\)][data];) 214.0572 Tj +0 -370.2411 Td +(6236 if\(shift & CAPSLOCK\){) 122.3184 Tj +0 -379.7344 Td +(6237 if\('a' <= c && c <= 'z'\)) 144.161 Tj +0 -389.2278 Td +(6238 c += 'A' - 'a';) 113.5814 Tj +0 -398.7211 Td +(6239 else if\('A' <= c && c <= 'Z'\)) 166.0035 Tj +0 -408.2145 Td +(6240 c += 'a' - 'A';) 113.5814 Tj +0 -417.7079 Td +(6241 }) 34.9481 Tj +0 -427.2012 Td +(6242 return c;) 69.8962 Tj +0 -436.6946 Td +(6243 }) 26.2111 Tj +0 -446.1879 Td (6244 ) 21.8426 Tj -0 -455.681 Td -(6245 ) 21.8426 Tj -0 -465.175 Td -(6246 ) 21.8426 Tj +0 -455.6813 Td +(6245 void) 39.3166 Tj +0 -465.1747 Td +(6246 kbd_intr\(void\)) 83.0018 Tj 0 -474.668 Td -(6247 ) 21.8426 Tj -0 -484.161 Td -(6248 ) 21.8426 Tj -0 -493.655 Td -(6249 ) 21.8426 Tj -0 -522.135 Td +(6247 {) 26.2111 Tj +0 -484.1614 Td +(6248 console_intr\(kbd_getc\);) 131.0554 Tj +0 -493.6547 Td +(6249 }) 26.2111 Tj +0 -522.1348 Td (Sheet 62) 34.9481 Tj Q Q @@ -20651,112 +20634,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/console.c Page 2) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/console.c Page 1) 174.7406 Tj 0 -28.4801 Td -(6250 static void) 69.8962 Tj +(6250 // Console input and output.) 144.161 Tj 0 -37.9735 Td -(6251 cga_putc\(int c\)) 87.3703 Tj +(6251 // Input is from the keyboard only.) 174.7406 Tj 0 -47.4668 Td -(6252 {) 26.2111 Tj +(6252 // Output is written to the screen and the printer port.) 266.4794 Tj 0 -56.9602 Td -(6253 int pos;) 65.5277 Tj +(6253 ) 21.8426 Tj 0 -66.4535 Td -(6254 ) 21.8426 Tj +(6254 #include "types.h") 100.4758 Tj 0 -75.9469 Td -(6255 // Cursor position: col + 80*row.) 174.741 Tj +(6255 #include "defs.h") 96.1073 Tj 0 -85.4403 Td -(6256 outb\(CRTPORT, 14\);) 109.213 Tj +(6256 #include "param.h") 100.4758 Tj 0 -94.9336 Td -(6257 pos = inb\(CRTPORT+1\) << 8;) 144.161 Tj +(6257 #include "traps.h") 100.4758 Tj 0 -104.427 Td -(6258 outb\(CRTPORT, 15\);) 109.213 Tj -0 -113.92 Td -(6259 pos |= inb\(CRTPORT+1\);) 126.687 Tj -0 -123.414 Td -(6260 ) 21.8426 Tj -0 -132.907 Td -(6261 if\(c == '\\n'\)) 87.3703 Tj -0 -142.4 Td -(6262 pos += 80 - pos%80;) 122.318 Tj -0 -151.894 Td -(6263 else if\(c == BACKSPACE\){) 135.424 Tj -0 -161.387 Td -(6264 if\(pos > 0\)) 87.3703 Tj -0 -170.88 Td -(6265 crt[--pos] = ' ' | 0x0700;) 161.635 Tj -0 -180.374 Td -(6266 } else) 56.7907 Tj -0 -189.867 Td -(6267 crt[pos++] = \(c&0xff\) | 0x0700; // black on white) 257.742 Tj -0 -199.361 Td -(6268 ) 21.8426 Tj -0 -208.854 Td -(6269 if\(\(pos/80\) >= 24\){ // Scroll up.) 179.109 Tj -0 -218.347 Td -(6270 memmove\(crt, crt+80, sizeof\(crt[0]\)*23*80\);) 227.163 Tj -0 -227.841 Td -(6271 pos -= 80;) 83.0018 Tj +(6258 #include "spinlock.h") 113.5814 Tj +0 -113.9203 Td +(6259 #include "dev.h") 91.7388 Tj +0 -123.4137 Td +(6260 #include "mmu.h") 91.7388 Tj +0 -132.9071 Td +(6261 #include "proc.h") 96.1073 Tj +0 -142.4004 Td +(6262 #include "x86.h") 91.7388 Tj +0 -151.8938 Td +(6263 ) 21.8426 Tj +0 -161.3871 Td +(6264 #define CRTPORT 0x3d4) 113.5814 Tj +0 -170.8805 Td +(6265 #define LPTPORT 0x378) 113.5814 Tj +0 -180.3739 Td +(6266 #define BACKSPACE 0x100) 122.3184 Tj +0 -189.8672 Td +(6267 ) 21.8426 Tj +0 -199.3606 Td +(6268 static ushort *crt = \(ushort*\)0xb8000; // CGA memory) 253.3738 Tj +0 -208.8539 Td +(6269 ) 21.8426 Tj +0 -218.3473 Td +(6270 static struct spinlock console_lock;) 179.1091 Tj +0 -227.8407 Td +(6271 int panicked = 0;) 96.1073 Tj 0 -237.334 Td -(6272 memset\(crt+pos, 0, sizeof\(crt[0]\)*\(24*80 - pos\)\)\ -;) 253.374 Tj -0 -246.827 Td -(6273 }) 34.9481 Tj -0 -256.321 Td -(6274 ) 21.8426 Tj -0 -265.814 Td -(6275 outb\(CRTPORT, 14\);) 109.213 Tj -0 -275.307 Td -(6276 outb\(CRTPORT+1, pos>>8\);) 135.424 Tj -0 -284.801 Td -(6277 outb\(CRTPORT, 15\);) 109.213 Tj -0 -294.294 Td -(6278 outb\(CRTPORT+1, pos\);) 122.318 Tj -0 -303.788 Td -(6279 crt[pos] = ' ' | 0x0700;) 135.424 Tj -0 -313.281 Td -(6280 }) 26.2111 Tj -0 -322.774 Td +(6272 int use_console_lock = 0;) 131.0554 Tj +0 -246.8274 Td +(6273 ) 21.8426 Tj +0 -256.3207 Td +(6274 // Copy console output to parallel port, which you can tel\ +l) 279.5849 Tj +0 -265.8141 Td +(6275 // .bochsrc to copy to the stdout:) 170.3721 Tj +0 -275.3075 Td +(6276 // parport1: enabled=1, file="/dev/stdout") 214.0572 Tj +0 -284.8008 Td +(6277 static void) 69.8962 Tj +0 -294.2942 Td +(6278 lpt_putc\(int c\)) 87.3703 Tj +0 -303.7875 Td +(6279 {) 26.2111 Tj +0 -313.2809 Td +(6280 int i;) 56.7907 Tj +0 -322.7743 Td (6281 ) 21.8426 Tj -0 -332.268 Td -(6282 static void) 69.8962 Tj +0 -332.2676 Td +(6282 for\(i = 0; !\(inb\(LPTPORT+1\) & 0x80\) && i < 12800; i\ +++\)) 266.4794 Tj 0 -341.761 Td -(6283 cons_putc\(int c\)) 91.7388 Tj -0 -351.254 Td -(6284 {) 26.2111 Tj -0 -360.748 Td -(6285 if\(panicked\){) 87.3703 Tj -0 -370.241 Td -(6286 cli\(\);) 65.5277 Tj -0 -379.734 Td -(6287 for\(;;\)) 69.8962 Tj -0 -389.228 Td -(6288 ;) 52.4222 Tj -0 -398.721 Td -(6289 }) 34.9481 Tj -0 -408.214 Td +(6283 ;) 43.6851 Tj +0 -351.2543 Td +(6284 if\(c == BACKSPACE\)) 109.2129 Tj +0 -360.7477 Td +(6285 c = '\\b';) 78.6333 Tj +0 -370.2411 Td +(6286 outb\(LPTPORT+0, c\);) 113.5814 Tj +0 -379.7344 Td +(6287 outb\(LPTPORT+2, 0x08|0x04|0x01\);) 170.3721 Tj +0 -389.2278 Td +(6288 outb\(LPTPORT+2, 0x08\);) 126.6869 Tj +0 -398.7211 Td +(6289 }) 26.2111 Tj +0 -408.2145 Td (6290 ) 21.8426 Tj -0 -417.708 Td -(6291 lpt_putc\(c\);) 83.0018 Tj -0 -427.201 Td -(6292 cga_putc\(c\);) 83.0018 Tj -0 -436.695 Td -(6293 }) 26.2111 Tj -0 -446.188 Td +0 -417.7079 Td +(6291 ) 21.8426 Tj +0 -427.2012 Td +(6292 ) 21.8426 Tj +0 -436.6946 Td +(6293 ) 21.8426 Tj +0 -446.1879 Td (6294 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (6295 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (6296 ) 21.8426 Tj 0 -474.668 Td (6297 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6298 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6299 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 62) 34.9481 Tj Q Q @@ -20785,8 +20769,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -20801,111 +20784,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/console.c Page 3) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/console.c Page 2) 174.7406 Tj 0 -28.4801 Td -(6300 void) 39.3166 Tj +(6300 static void) 69.8962 Tj 0 -37.9735 Td -(6301 printint\(int xx, int base, int sgn\)) 174.741 Tj +(6301 cga_putc\(int c\)) 87.3703 Tj 0 -47.4668 Td (6302 {) 26.2111 Tj 0 -56.9602 Td -(6303 static char digits[] = "0123456789ABCDEF";) 214.057 Tj +(6303 int pos;) 65.5277 Tj 0 -66.4535 Td -(6304 char buf[16];) 87.3703 Tj +(6304 ) 21.8426 Tj 0 -75.9469 Td -(6305 int i = 0, neg = 0;) 113.581 Tj +(6305 // Cursor position: col + 80*row.) 174.7406 Tj 0 -85.4403 Td -(6306 uint x;) 61.1592 Tj +(6306 outb\(CRTPORT, 14\);) 109.2129 Tj 0 -94.9336 Td -(6307 ) 21.8426 Tj +(6307 pos = inb\(CRTPORT+1\) << 8;) 144.161 Tj 0 -104.427 Td -(6308 if\(sgn && xx < 0\){) 109.213 Tj -0 -113.92 Td -(6309 neg = 1;) 74.2647 Tj -0 -123.414 Td -(6310 x = 0 - xx;) 87.3703 Tj -0 -132.907 Td -(6311 } else {) 65.5277 Tj -0 -142.4 Td -(6312 x = xx;) 69.8962 Tj -0 -151.894 Td -(6313 }) 34.9481 Tj -0 -161.387 Td -(6314 ) 21.8426 Tj -0 -170.88 Td -(6315 do{) 43.6851 Tj -0 -180.374 Td -(6316 buf[i++] = digits[x % base];) 161.635 Tj -0 -189.867 Td -(6317 }while\(\(x /= base\) != 0\);) 139.792 Tj -0 -199.361 Td -(6318 if\(neg\)) 61.1592 Tj -0 -208.854 Td -(6319 buf[i++] = '-';) 104.844 Tj -0 -218.347 Td -(6320 ) 21.8426 Tj -0 -227.841 Td -(6321 while\(--i >= 0\)) 96.1073 Tj +(6308 outb\(CRTPORT, 15\);) 109.2129 Tj +0 -113.9203 Td +(6309 pos |= inb\(CRTPORT+1\);) 126.6869 Tj +0 -123.4137 Td +(6310 ) 21.8426 Tj +0 -132.9071 Td +(6311 if\(c == '\\n'\)) 87.3703 Tj +0 -142.4004 Td +(6312 pos += 80 - pos%80;) 122.3184 Tj +0 -151.8938 Td +(6313 else if\(c == BACKSPACE\){) 135.4239 Tj +0 -161.3871 Td +(6314 if\(pos > 0\)) 87.3703 Tj +0 -170.8805 Td +(6315 crt[--pos] = ' ' | 0x0700;) 161.635 Tj +0 -180.3739 Td +(6316 } else) 56.7907 Tj +0 -189.8672 Td +(6317 crt[pos++] = \(c&0xff\) | 0x0700; // black on white) 257.7424 Tj +0 -199.3606 Td +(6318 ) 21.8426 Tj +0 -208.8539 Td +(6319 if\(\(pos/80\) >= 24\){ // Scroll up.) 179.1091 Tj +0 -218.3473 Td +(6320 memmove\(crt, crt+80, sizeof\(crt[0]\)*23*80\);) 227.1628 Tj +0 -227.8407 Td +(6321 pos -= 80;) 83.0018 Tj 0 -237.334 Td -(6322 cons_putc\(buf[i]\);) 117.95 Tj -0 -246.827 Td -(6323 }) 26.2111 Tj -0 -256.321 Td +(6322 memset\(crt+pos, 0, sizeof\(crt[0]\)*\(24*80 - pos\)\)\ +;) 253.3738 Tj +0 -246.8274 Td +(6323 }) 34.9481 Tj +0 -256.3207 Td (6324 ) 21.8426 Tj -0 -265.814 Td -(6325 // Print to the console. only understands %d, %x, %p, %s.) 270.848 Tj -0 -275.307 Td -(6326 void) 39.3166 Tj -0 -284.801 Td -(6327 cprintf\(char *fmt, ...\)) 122.318 Tj -0 -294.294 Td -(6328 {) 26.2111 Tj -0 -303.788 Td -(6329 int i, c, state, locking;) 139.792 Tj -0 -313.281 Td -(6330 uint *argp;) 78.6333 Tj -0 -322.774 Td -(6331 char *s;) 65.5277 Tj -0 -332.268 Td -(6332 ) 21.8426 Tj +0 -265.8141 Td +(6325 outb\(CRTPORT, 14\);) 109.2129 Tj +0 -275.3075 Td +(6326 outb\(CRTPORT+1, pos>>8\);) 135.4239 Tj +0 -284.8008 Td +(6327 outb\(CRTPORT, 15\);) 109.2129 Tj +0 -294.2942 Td +(6328 outb\(CRTPORT+1, pos\);) 122.3184 Tj +0 -303.7875 Td +(6329 crt[pos] = ' ' | 0x0700;) 135.4239 Tj +0 -313.2809 Td +(6330 }) 26.2111 Tj +0 -322.7743 Td +(6331 ) 21.8426 Tj +0 -332.2676 Td +(6332 void) 39.3166 Tj 0 -341.761 Td -(6333 locking = use_console_lock;) 148.529 Tj -0 -351.254 Td -(6334 if\(locking\)) 78.6333 Tj -0 -360.748 Td -(6335 acquire\(&console_lock\);) 139.792 Tj -0 -370.241 Td -(6336 ) 21.8426 Tj -0 -379.734 Td -(6337 argp = \(uint*\)\(void*\)&fmt + 1;) 161.635 Tj -0 -389.228 Td -(6338 state = 0;) 74.2647 Tj -0 -398.721 Td -(6339 for\(i = 0; fmt[i]; i++\){) 135.424 Tj -0 -408.214 Td -(6340 c = fmt[i] & 0xff;) 117.95 Tj -0 -417.708 Td -(6341 switch\(state\){) 100.476 Tj -0 -427.201 Td -(6342 case 0:) 69.8962 Tj -0 -436.695 Td -(6343 if\(c == '%'\)) 100.476 Tj -0 -446.188 Td -(6344 state = '%';) 109.213 Tj -0 -455.681 Td -(6345 else) 65.5277 Tj -0 -465.175 Td -(6346 cons_putc\(c\);) 113.581 Tj +(6333 cons_putc\(int c\)) 91.7388 Tj +0 -351.2543 Td +(6334 {) 26.2111 Tj +0 -360.7477 Td +(6335 if\(panicked\){) 87.3703 Tj +0 -370.2411 Td +(6336 cli\(\);) 65.5277 Tj +0 -379.7344 Td +(6337 for\(;;\)) 69.8962 Tj +0 -389.2278 Td +(6338 ;) 52.4222 Tj +0 -398.7211 Td +(6339 }) 34.9481 Tj +0 -408.2145 Td +(6340 ) 21.8426 Tj +0 -417.7079 Td +(6341 lpt_putc\(c\);) 83.0018 Tj +0 -427.2012 Td +(6342 cga_putc\(c\);) 83.0018 Tj +0 -436.6946 Td +(6343 }) 26.2111 Tj +0 -446.1879 Td +(6344 ) 21.8426 Tj +0 -455.6813 Td +(6345 ) 21.8426 Tj +0 -465.1747 Td +(6346 ) 21.8426 Tj 0 -474.668 Td -(6347 break;) 74.2647 Tj -0 -484.161 Td +(6347 ) 21.8426 Tj +0 -484.1614 Td (6348 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6349 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 63) 34.9481 Tj Q Q @@ -20920,111 +20904,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/console.c Page 4) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/console.c Page 3) 174.7406 Tj 0 -28.4801 Td -(6350 case '%':) 78.6333 Tj +(6350 void) 39.3166 Tj 0 -37.9735 Td -(6351 switch\(c\){) 91.7388 Tj +(6351 printint\(int xx, int base, int sgn\)) 174.7406 Tj 0 -47.4668 Td -(6352 case 'd':) 87.3703 Tj +(6352 {) 26.2111 Tj 0 -56.9602 Td -(6353 printint\(*argp++, 10, 1\);) 166.004 Tj +(6353 static char digits[] = "0123456789ABCDEF";) 214.0572 Tj 0 -66.4535 Td -(6354 break;) 83.0018 Tj +(6354 char buf[16];) 87.3703 Tj 0 -75.9469 Td -(6355 case 'x':) 87.3703 Tj +(6355 int i = 0, neg = 0;) 113.5814 Tj 0 -85.4403 Td -(6356 case 'p':) 87.3703 Tj +(6356 uint x;) 61.1592 Tj 0 -94.9336 Td -(6357 printint\(*argp++, 16, 0\);) 166.004 Tj +(6357 ) 21.8426 Tj 0 -104.427 Td -(6358 break;) 83.0018 Tj -0 -113.92 Td -(6359 case 's':) 87.3703 Tj -0 -123.414 Td -(6360 s = \(char*\)*argp++;) 139.792 Tj -0 -132.907 Td -(6361 if\(s == 0\)) 100.476 Tj -0 -142.4 Td -(6362 s = "\(null\)";) 122.318 Tj -0 -151.894 Td -(6363 for\(; *s; s++\)) 117.95 Tj -0 -161.387 Td -(6364 cons_putc\(*s\);) 126.687 Tj -0 -170.88 Td -(6365 break;) 83.0018 Tj -0 -180.374 Td -(6366 case '%':) 87.3703 Tj -0 -189.867 Td -(6367 cons_putc\('%'\);) 122.318 Tj -0 -199.361 Td -(6368 break;) 83.0018 Tj -0 -208.854 Td -(6369 default:) 83.0018 Tj -0 -218.347 Td -(6370 // Print unknown % sequence to draw attention.) 257.742 Tj -0 -227.841 Td -(6371 cons_putc\('%'\);) 122.318 Tj +(6358 if\(sgn && xx < 0\){) 109.2129 Tj +0 -113.9203 Td +(6359 neg = 1;) 74.2647 Tj +0 -123.4137 Td +(6360 x = 0 - xx;) 87.3703 Tj +0 -132.9071 Td +(6361 } else {) 65.5277 Tj +0 -142.4004 Td +(6362 x = xx;) 69.8962 Tj +0 -151.8938 Td +(6363 }) 34.9481 Tj +0 -161.3871 Td +(6364 ) 21.8426 Tj +0 -170.8805 Td +(6365 do{) 43.6851 Tj +0 -180.3739 Td +(6366 buf[i++] = digits[x % base];) 161.635 Tj +0 -189.8672 Td +(6367 }while\(\(x /= base\) != 0\);) 139.7925 Tj +0 -199.3606 Td +(6368 if\(neg\)) 61.1592 Tj +0 -208.8539 Td +(6369 buf[i++] = '-';) 104.8443 Tj +0 -218.3473 Td +(6370 ) 21.8426 Tj +0 -227.8407 Td +(6371 while\(--i >= 0\)) 96.1073 Tj 0 -237.334 Td -(6372 cons_putc\(c\);) 113.581 Tj -0 -246.827 Td -(6373 break;) 83.0018 Tj -0 -256.321 Td -(6374 }) 52.4222 Tj -0 -265.814 Td -(6375 state = 0;) 91.7388 Tj -0 -275.307 Td -(6376 break;) 74.2647 Tj -0 -284.801 Td -(6377 }) 43.6851 Tj -0 -294.294 Td -(6378 }) 34.9481 Tj -0 -303.788 Td -(6379 ) 21.8426 Tj -0 -313.281 Td -(6380 if\(locking\)) 78.6333 Tj -0 -322.774 Td -(6381 release\(&console_lock\);) 139.792 Tj -0 -332.268 Td -(6382 }) 26.2111 Tj +(6372 cons_putc\(buf[i]\);) 117.9499 Tj +0 -246.8274 Td +(6373 }) 26.2111 Tj +0 -256.3207 Td +(6374 ) 21.8426 Tj +0 -265.8141 Td +(6375 // Print to the console. only understands %d, %x, %p, %s.) 270.8479 Tj +0 -275.3075 Td +(6376 void) 39.3166 Tj +0 -284.8008 Td +(6377 cprintf\(char *fmt, ...\)) 122.3184 Tj +0 -294.2942 Td +(6378 {) 26.2111 Tj +0 -303.7875 Td +(6379 int i, c, state, locking;) 139.7925 Tj +0 -313.2809 Td +(6380 uint *argp;) 78.6333 Tj +0 -322.7743 Td +(6381 char *s;) 65.5277 Tj +0 -332.2676 Td +(6382 ) 21.8426 Tj 0 -341.761 Td -(6383 ) 21.8426 Tj -0 -351.254 Td -(6384 int) 34.9481 Tj -0 -360.748 Td -(6385 console_write\(struct inode *ip, char *buf, int n\)) 235.9 Tj -0 -370.241 Td -(6386 {) 26.2111 Tj -0 -379.734 Td -(6387 int i;) 56.7907 Tj -0 -389.228 Td -(6388 ) 21.8426 Tj -0 -398.721 Td -(6389 iunlock\(ip\);) 83.0018 Tj -0 -408.214 Td -(6390 acquire\(&console_lock\);) 131.055 Tj -0 -417.708 Td -(6391 for\(i = 0; i < n; i++\)) 126.687 Tj -0 -427.201 Td -(6392 cons_putc\(buf[i] & 0xff\);) 148.529 Tj -0 -436.695 Td -(6393 release\(&console_lock\);) 131.055 Tj -0 -446.188 Td -(6394 ilock\(ip\);) 74.2647 Tj -0 -455.681 Td -(6395 ) 21.8426 Tj -0 -465.175 Td -(6396 return n;) 69.8962 Tj +(6383 locking = use_console_lock;) 148.5295 Tj +0 -351.2543 Td +(6384 if\(locking\)) 78.6333 Tj +0 -360.7477 Td +(6385 acquire\(&console_lock\);) 139.7925 Tj +0 -370.2411 Td +(6386 ) 21.8426 Tj +0 -379.7344 Td +(6387 argp = \(uint*\)\(void*\)&fmt + 1;) 161.635 Tj +0 -389.2278 Td +(6388 state = 0;) 74.2647 Tj +0 -398.7211 Td +(6389 for\(i = 0; fmt[i]; i++\){) 135.4239 Tj +0 -408.2145 Td +(6390 c = fmt[i] & 0xff;) 117.9499 Tj +0 -417.7079 Td +(6391 switch\(state\){) 100.4758 Tj +0 -427.2012 Td +(6392 case 0:) 69.8962 Tj +0 -436.6946 Td +(6393 if\(c == '%'\)) 100.4758 Tj +0 -446.1879 Td +(6394 state = '%';) 109.2129 Tj +0 -455.6813 Td +(6395 else) 65.5277 Tj +0 -465.1747 Td +(6396 cons_putc\(c\);) 113.5814 Tj 0 -474.668 Td -(6397 }) 26.2111 Tj -0 -484.161 Td +(6397 break;) 74.2647 Tj +0 -484.1614 Td (6398 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6399 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 63) 34.9481 Tj Q Q @@ -21053,8 +21037,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -21069,113 +21052,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/console.c Page 5) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/console.c Page 4) 174.7406 Tj 0 -28.4801 Td -(6400 #define INPUT_BUF 128) 113.581 Tj +(6400 case '%':) 78.6333 Tj 0 -37.9735 Td -(6401 struct {) 56.7907 Tj +(6401 switch\(c\){) 91.7388 Tj 0 -47.4668 Td -(6402 struct spinlock lock;) 122.318 Tj +(6402 case 'd':) 87.3703 Tj 0 -56.9602 Td -(6403 char buf[INPUT_BUF];) 117.95 Tj +(6403 printint\(*argp++, 10, 1\);) 166.0035 Tj 0 -66.4535 Td -(6404 int r; // Read index) 122.318 Tj +(6404 break;) 83.0018 Tj 0 -75.9469 Td -(6405 int w; // Write index) 126.687 Tj +(6405 case 'x':) 87.3703 Tj 0 -85.4403 Td -(6406 int e; // Edit index) 122.318 Tj +(6406 case 'p':) 87.3703 Tj 0 -94.9336 Td -(6407 } input;) 56.7907 Tj +(6407 printint\(*argp++, 16, 0\);) 166.0035 Tj 0 -104.427 Td -(6408 ) 21.8426 Tj -0 -113.92 Td -(6409 #define C\(x\) \(\(x\)-'@'\) // Control-x) 183.478 Tj -0 -123.414 Td -(6410 ) 21.8426 Tj -0 -132.907 Td -(6411 void) 39.3166 Tj -0 -142.4 Td -(6412 console_intr\(int \(*getc\)\(void\)\)) 157.267 Tj -0 -151.894 Td -(6413 {) 26.2111 Tj -0 -161.387 Td -(6414 int c;) 56.7907 Tj -0 -170.88 Td -(6415 ) 21.8426 Tj -0 -180.374 Td -(6416 acquire\(&input.lock\);) 122.318 Tj -0 -189.867 Td -(6417 while\(\(c = getc\(\)\) >= 0\){) 139.792 Tj -0 -199.361 Td -(6418 switch\(c\){) 83.0018 Tj -0 -208.854 Td -(6419 case C\('P'\): // Process listing.) 183.478 Tj -0 -218.347 Td -(6420 procdump\(\);) 96.1073 Tj -0 -227.841 Td -(6421 break;) 74.2647 Tj +(6408 break;) 83.0018 Tj +0 -113.9203 Td +(6409 case 's':) 87.3703 Tj +0 -123.4137 Td +(6410 s = \(char*\)*argp++;) 139.7925 Tj +0 -132.9071 Td +(6411 if\(s == 0\)) 100.4758 Tj +0 -142.4004 Td +(6412 s = "\(null\)";) 122.3184 Tj +0 -151.8938 Td +(6413 for\(; *s; s++\)) 117.9499 Tj +0 -161.3871 Td +(6414 cons_putc\(*s\);) 126.6869 Tj +0 -170.8805 Td +(6415 break;) 83.0018 Tj +0 -180.3739 Td +(6416 case '%':) 87.3703 Tj +0 -189.8672 Td +(6417 cons_putc\('%'\);) 122.3184 Tj +0 -199.3606 Td +(6418 break;) 83.0018 Tj +0 -208.8539 Td +(6419 default:) 83.0018 Tj +0 -218.3473 Td +(6420 // Print unknown % sequence to draw attention.) 257.7424 Tj +0 -227.8407 Td +(6421 cons_putc\('%'\);) 122.3184 Tj 0 -237.334 Td -(6422 case C\('U'\): // Kill line.) 157.267 Tj -0 -246.827 Td -(6423 while\(input.e > input.w &&) 161.635 Tj -0 -256.321 Td -(6424 input.buf[\(input.e-1\) % INPUT_BUF] != '\\n'\)\ -{) 266.479 Tj -0 -265.814 Td -(6425 input.e--;) 100.476 Tj -0 -275.307 Td -(6426 cons_putc\(BACKSPACE\);) 148.529 Tj -0 -284.801 Td -(6427 }) 52.4222 Tj -0 -294.294 Td -(6428 break;) 74.2647 Tj -0 -303.788 Td -(6429 case C\('H'\): // Backspace) 152.898 Tj -0 -313.281 Td -(6430 if\(input.e > input.w\){) 144.161 Tj -0 -322.774 Td -(6431 input.e--;) 100.476 Tj -0 -332.268 Td -(6432 cons_putc\(BACKSPACE\);) 148.529 Tj +(6422 cons_putc\(c\);) 113.5814 Tj +0 -246.8274 Td +(6423 break;) 83.0018 Tj +0 -256.3207 Td +(6424 }) 52.4222 Tj +0 -265.8141 Td +(6425 state = 0;) 91.7388 Tj +0 -275.3075 Td +(6426 break;) 74.2647 Tj +0 -284.8008 Td +(6427 }) 43.6851 Tj +0 -294.2942 Td +(6428 }) 34.9481 Tj +0 -303.7875 Td +(6429 ) 21.8426 Tj +0 -313.2809 Td +(6430 if\(locking\)) 78.6333 Tj +0 -322.7743 Td +(6431 release\(&console_lock\);) 139.7925 Tj +0 -332.2676 Td +(6432 }) 26.2111 Tj 0 -341.761 Td -(6433 }) 52.4222 Tj -0 -351.254 Td -(6434 break;) 74.2647 Tj -0 -360.748 Td -(6435 default:) 74.2647 Tj -0 -370.241 Td -(6436 if\(c != 0 && input.e < input.r+INPUT_BUF\){) 231.531 Tj -0 -379.734 Td -(6437 input.buf[input.e++] = c;) 166.004 Tj -0 -389.228 Td -(6438 cons_putc\(c\);) 113.581 Tj -0 -398.721 Td -(6439 if\(c == '\\n' || c == C\('D'\) || input.e == inpu\ -t.r+INPUT_BUF\){) 323.27 Tj -0 -408.214 Td -(6440 input.w = input.e;) 144.161 Tj -0 -417.708 Td -(6441 wakeup\(&input.r\);) 139.792 Tj -0 -427.201 Td -(6442 }) 61.1592 Tj -0 -436.695 Td -(6443 }) 52.4222 Tj -0 -446.188 Td -(6444 break;) 74.2647 Tj -0 -455.681 Td -(6445 }) 43.6851 Tj -0 -465.175 Td -(6446 }) 34.9481 Tj +(6433 ) 21.8426 Tj +0 -351.2543 Td +(6434 int) 34.9481 Tj +0 -360.7477 Td +(6435 console_write\(struct inode *ip, char *buf, int n\)) 235.8998 Tj +0 -370.2411 Td +(6436 {) 26.2111 Tj +0 -379.7344 Td +(6437 int i;) 56.7907 Tj +0 -389.2278 Td +(6438 ) 21.8426 Tj +0 -398.7211 Td +(6439 iunlock\(ip\);) 83.0018 Tj +0 -408.2145 Td +(6440 acquire\(&console_lock\);) 131.0554 Tj +0 -417.7079 Td +(6441 for\(i = 0; i < n; i++\)) 126.6869 Tj +0 -427.2012 Td +(6442 cons_putc\(buf[i] & 0xff\);) 148.5295 Tj +0 -436.6946 Td +(6443 release\(&console_lock\);) 131.0554 Tj +0 -446.1879 Td +(6444 ilock\(ip\);) 74.2647 Tj +0 -455.6813 Td +(6445 ) 21.8426 Tj +0 -465.1747 Td +(6446 return n;) 69.8962 Tj 0 -474.668 Td -(6447 release\(&input.lock\);) 122.318 Tj -0 -484.161 Td -(6448 }) 26.2111 Tj -0 -493.655 Td +(6447 }) 26.2111 Tj +0 -484.1614 Td +(6448 ) 21.8426 Tj +0 -493.6547 Td (6449 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 64) 34.9481 Tj Q Q @@ -21190,111 +21171,113 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/console.c Page 6) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/console.c Page 5) 174.7406 Tj 0 -28.4801 Td -(6450 int) 34.9481 Tj +(6450 #define INPUT_BUF 128) 113.5814 Tj 0 -37.9735 Td -(6451 console_read\(struct inode *ip, char *dst, int n\)) 231.531 Tj +(6451 struct {) 56.7907 Tj 0 -47.4668 Td -(6452 {) 26.2111 Tj +(6452 struct spinlock lock;) 122.3184 Tj 0 -56.9602 Td -(6453 uint target;) 83.0018 Tj +(6453 char buf[INPUT_BUF];) 117.9499 Tj 0 -66.4535 Td -(6454 int c;) 56.7907 Tj +(6454 uint r; // Read index) 126.6869 Tj 0 -75.9469 Td -(6455 ) 21.8426 Tj +(6455 uint w; // Write index) 131.0554 Tj 0 -85.4403 Td -(6456 iunlock\(ip\);) 83.0018 Tj +(6456 uint e; // Edit index) 126.6869 Tj 0 -94.9336 Td -(6457 target = n;) 78.6333 Tj +(6457 } input;) 56.7907 Tj 0 -104.427 Td -(6458 acquire\(&input.lock\);) 122.318 Tj -0 -113.92 Td -(6459 while\(n > 0\){) 87.3703 Tj -0 -123.414 Td -(6460 while\(input.r == input.w\){) 152.898 Tj -0 -132.907 Td -(6461 if\(cp->killed\){) 113.581 Tj -0 -142.4 Td -(6462 release\(&input.lock\);) 148.529 Tj -0 -151.894 Td -(6463 ilock\(ip\);) 100.476 Tj -0 -161.387 Td -(6464 return -1;) 100.476 Tj -0 -170.88 Td -(6465 }) 52.4222 Tj -0 -180.374 Td -(6466 sleep\(&input.r, &input.lock\);) 174.741 Tj -0 -189.867 Td -(6467 }) 43.6851 Tj -0 -199.361 Td -(6468 c = input.buf[input.r++];) 148.529 Tj -0 -208.854 Td -(6469 if\(c == C\('D'\)\){ // EOF) 144.161 Tj -0 -218.347 Td -(6470 if\(n < target\){) 113.581 Tj -0 -227.841 Td -(6471 // Save ^D for next time, to make sure) 222.794 Tj +(6458 ) 21.8426 Tj +0 -113.9203 Td +(6459 #define C\(x\) \(\(x\)-'@'\) // Control-x) 183.4776 Tj +0 -123.4137 Td +(6460 ) 21.8426 Tj +0 -132.9071 Td +(6461 void) 39.3166 Tj +0 -142.4004 Td +(6462 console_intr\(int \(*getc\)\(void\)\)) 157.2665 Tj +0 -151.8938 Td +(6463 {) 26.2111 Tj +0 -161.3871 Td +(6464 int c;) 56.7907 Tj +0 -170.8805 Td +(6465 ) 21.8426 Tj +0 -180.3739 Td +(6466 acquire\(&input.lock\);) 122.3184 Tj +0 -189.8672 Td +(6467 while\(\(c = getc\(\)\) >= 0\){) 139.7925 Tj +0 -199.3606 Td +(6468 switch\(c\){) 83.0018 Tj +0 -208.8539 Td +(6469 case C\('P'\): // Process listing.) 183.4776 Tj +0 -218.3473 Td +(6470 procdump\(\);) 96.1073 Tj +0 -227.8407 Td +(6471 break;) 74.2647 Tj 0 -237.334 Td -(6472 // caller gets a 0-byte result.) 192.215 Tj -0 -246.827 Td -(6473 input.r--;) 100.476 Tj -0 -256.321 Td -(6474 }) 52.4222 Tj -0 -265.814 Td -(6475 break;) 74.2647 Tj -0 -275.307 Td -(6476 }) 43.6851 Tj -0 -284.801 Td -(6477 *dst++ = c;) 87.3703 Tj -0 -294.294 Td -(6478 --n;) 56.7907 Tj -0 -303.788 Td -(6479 if\(c == '\\n'\)) 96.1073 Tj -0 -313.281 Td -(6480 break;) 74.2647 Tj -0 -322.774 Td -(6481 if\(input.r >= INPUT_BUF\)) 144.161 Tj -0 -332.268 Td -(6482 input.r = 0;) 100.476 Tj +(6472 case C\('U'\): // Kill line.) 157.2665 Tj +0 -246.8274 Td +(6473 while\(input.e != input.w &&) 166.0035 Tj +0 -256.3207 Td +(6474 input.buf[\(input.e-1\) % INPUT_BUF] != '\\n'\)\ +{) 266.4794 Tj +0 -265.8141 Td +(6475 input.e--;) 100.4758 Tj +0 -275.3075 Td +(6476 cons_putc\(BACKSPACE\);) 148.5295 Tj +0 -284.8008 Td +(6477 }) 52.4222 Tj +0 -294.2942 Td +(6478 break;) 74.2647 Tj +0 -303.7875 Td +(6479 case C\('H'\): // Backspace) 152.898 Tj +0 -313.2809 Td +(6480 if\(input.e != input.w\){) 148.5295 Tj +0 -322.7743 Td +(6481 input.e--;) 100.4758 Tj +0 -332.2676 Td +(6482 cons_putc\(BACKSPACE\);) 148.5295 Tj 0 -341.761 Td -(6483 }) 34.9481 Tj -0 -351.254 Td -(6484 release\(&input.lock\);) 122.318 Tj -0 -360.748 Td -(6485 ilock\(ip\);) 74.2647 Tj -0 -370.241 Td -(6486 ) 21.8426 Tj -0 -379.734 Td -(6487 return target - n;) 109.213 Tj -0 -389.228 Td -(6488 }) 26.2111 Tj -0 -398.721 Td -(6489 ) 21.8426 Tj -0 -408.214 Td -(6490 ) 21.8426 Tj -0 -417.708 Td -(6491 ) 21.8426 Tj -0 -427.201 Td -(6492 ) 21.8426 Tj -0 -436.695 Td -(6493 ) 21.8426 Tj -0 -446.188 Td -(6494 ) 21.8426 Tj -0 -455.681 Td -(6495 ) 21.8426 Tj -0 -465.175 Td -(6496 ) 21.8426 Tj +(6483 }) 52.4222 Tj +0 -351.2543 Td +(6484 break;) 74.2647 Tj +0 -360.7477 Td +(6485 default:) 74.2647 Tj +0 -370.2411 Td +(6486 if\(c != 0 && input.e-input.r < INPUT_BUF\){) 231.5313 Tj +0 -379.7344 Td +(6487 input.buf[input.e++ % INPUT_BUF] = c;) 218.4257 Tj +0 -389.2278 Td +(6488 cons_putc\(c\);) 113.5814 Tj +0 -398.7211 Td +(6489 if\(c == '\\n' || c == C\('D'\) || input.e == inpu\ +t.r+INPUT_BUF\){) 323.2701 Tj +0 -408.2145 Td +(6490 input.w = input.e;) 144.161 Tj +0 -417.7079 Td +(6491 wakeup\(&input.r\);) 139.7925 Tj +0 -427.2012 Td +(6492 }) 61.1592 Tj +0 -436.6946 Td +(6493 }) 52.4222 Tj +0 -446.1879 Td +(6494 break;) 74.2647 Tj +0 -455.6813 Td +(6495 }) 43.6851 Tj +0 -465.1747 Td +(6496 }) 34.9481 Tj 0 -474.668 Td -(6497 ) 21.8426 Tj -0 -484.161 Td -(6498 ) 21.8426 Tj -0 -493.655 Td +(6497 release\(&input.lock\);) 122.3184 Tj +0 -484.1614 Td +(6498 }) 26.2111 Tj +0 -493.6547 Td (6499 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 64) 34.9481 Tj Q Q @@ -21323,8 +21306,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -21339,111 +21321,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/console.c Page 7) 174.741 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/console.c Page 6) 174.7406 Tj 0 -28.4801 Td -(6500 void) 39.3166 Tj +(6500 int) 34.9481 Tj 0 -37.9735 Td -(6501 console_init\(void\)) 100.476 Tj +(6501 console_read\(struct inode *ip, char *dst, int n\)) 231.5313 Tj 0 -47.4668 Td (6502 {) 26.2111 Tj 0 -56.9602 Td -(6503 initlock\(&console_lock, "console"\);) 183.478 Tj +(6503 uint target;) 83.0018 Tj 0 -66.4535 Td -(6504 initlock\(&input.lock, "console input"\);) 200.952 Tj +(6504 int c;) 56.7907 Tj 0 -75.9469 Td (6505 ) 21.8426 Tj 0 -85.4403 Td -(6506 devsw[CONSOLE].write = console_write;) 192.215 Tj +(6506 iunlock\(ip\);) 83.0018 Tj 0 -94.9336 Td -(6507 devsw[CONSOLE].read = console_read;) 183.478 Tj +(6507 target = n;) 78.6333 Tj 0 -104.427 Td -(6508 //use_console_lock = 1;) 131.055 Tj -0 -113.92 Td -(6509 ) 21.8426 Tj -0 -123.414 Td -(6510 pic_enable\(IRQ_KBD\);) 117.95 Tj -0 -132.907 Td -(6511 ioapic_enable\(IRQ_KBD, 0\);) 144.161 Tj -0 -142.4 Td -(6512 }) 26.2111 Tj -0 -151.894 Td -(6513 ) 21.8426 Tj -0 -161.387 Td -(6514 void) 39.3166 Tj -0 -170.88 Td -(6515 panic\(char *s\)) 83.0018 Tj -0 -180.374 Td -(6516 {) 26.2111 Tj -0 -189.867 Td -(6517 int i;) 56.7907 Tj -0 -199.361 Td -(6518 uint pcs[10];) 87.3703 Tj -0 -208.854 Td -(6519 ) 21.8426 Tj -0 -218.347 Td -(6520 __asm __volatile\("cli"\);) 135.424 Tj -0 -227.841 Td -(6521 use_console_lock = 0;) 122.318 Tj +(6508 acquire\(&input.lock\);) 122.3184 Tj +0 -113.9203 Td +(6509 while\(n > 0\){) 87.3703 Tj +0 -123.4137 Td +(6510 while\(input.r == input.w\){) 152.898 Tj +0 -132.9071 Td +(6511 if\(cp->killed\){) 113.5814 Tj +0 -142.4004 Td +(6512 release\(&input.lock\);) 148.5295 Tj +0 -151.8938 Td +(6513 ilock\(ip\);) 100.4758 Tj +0 -161.3871 Td +(6514 return -1;) 100.4758 Tj +0 -170.8805 Td +(6515 }) 52.4222 Tj +0 -180.3739 Td +(6516 sleep\(&input.r, &input.lock\);) 174.7406 Tj +0 -189.8672 Td +(6517 }) 43.6851 Tj +0 -199.3606 Td +(6518 c = input.buf[input.r++ % INPUT_BUF];) 200.9517 Tj +0 -208.8539 Td +(6519 if\(c == C\('D'\)\){ // EOF) 144.161 Tj +0 -218.3473 Td +(6520 if\(n < target\){) 113.5814 Tj +0 -227.8407 Td +(6521 // Save ^D for next time, to make sure) 222.7942 Tj 0 -237.334 Td -(6522 cprintf\("panic \(%d\): ", cpu\(\)\);) 166.004 Tj -0 -246.827 Td -(6523 cprintf\(s, 0\);) 91.7388 Tj -0 -256.321 Td -(6524 cprintf\("\\n", 0\);) 104.844 Tj -0 -265.814 Td -(6525 getcallerpcs\(&s, pcs\);) 126.687 Tj -0 -275.307 Td -(6526 for\(i=0; i<10; i++\)) 113.581 Tj -0 -284.801 Td -(6527 cprintf\(" %p", pcs[i]\);) 139.792 Tj -0 -294.294 Td -(6528 panicked = 1; // freeze other CPU) 174.741 Tj -0 -303.788 Td -(6529 for\(;;\)) 61.1592 Tj -0 -313.281 Td -(6530 ;) 43.6851 Tj -0 -322.774 Td -(6531 }) 26.2111 Tj -0 -332.268 Td -(6532 ) 21.8426 Tj +(6522 // caller gets a 0-byte result.) 192.2146 Tj +0 -246.8274 Td +(6523 input.r--;) 100.4758 Tj +0 -256.3207 Td +(6524 }) 52.4222 Tj +0 -265.8141 Td +(6525 break;) 74.2647 Tj +0 -275.3075 Td +(6526 }) 43.6851 Tj +0 -284.8008 Td +(6527 *dst++ = c;) 87.3703 Tj +0 -294.2942 Td +(6528 --n;) 56.7907 Tj +0 -303.7875 Td +(6529 if\(c == '\\n'\)) 96.1073 Tj +0 -313.2809 Td +(6530 break;) 74.2647 Tj +0 -322.7743 Td +(6531 }) 34.9481 Tj +0 -332.2676 Td +(6532 release\(&input.lock\);) 122.3184 Tj 0 -341.761 Td -(6533 ) 21.8426 Tj -0 -351.254 Td +(6533 ilock\(ip\);) 74.2647 Tj +0 -351.2543 Td (6534 ) 21.8426 Tj -0 -360.748 Td -(6535 ) 21.8426 Tj -0 -370.241 Td -(6536 ) 21.8426 Tj -0 -379.734 Td +0 -360.7477 Td +(6535 return target - n;) 109.2129 Tj +0 -370.2411 Td +(6536 }) 26.2111 Tj +0 -379.7344 Td (6537 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (6538 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (6539 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (6540 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (6541 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (6542 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (6543 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (6544 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (6545 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (6546 ) 21.8426 Tj 0 -474.668 Td (6547 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6548 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6549 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 65) 34.9481 Tj Q Q @@ -21458,115 +21440,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/timer.c Page 1) 166.004 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/console.c Page 7) 174.7406 Tj 0 -28.4801 Td -(6550 // Intel 8253/8254/82C54 Programmable Interval Timer \(PIT\ -\).) 279.585 Tj +(6550 void) 39.3166 Tj 0 -37.9735 Td -(6551 // Only used on uniprocessors;) 152.898 Tj +(6551 console_init\(void\)) 100.4758 Tj 0 -47.4668 Td -(6552 // SMP machines use the local APIC timer.) 200.952 Tj +(6552 {) 26.2111 Tj 0 -56.9602 Td -(6553 ) 21.8426 Tj +(6553 initlock\(&console_lock, "console"\);) 183.4776 Tj 0 -66.4535 Td -(6554 #include "types.h") 100.476 Tj +(6554 initlock\(&input.lock, "console input"\);) 200.9517 Tj 0 -75.9469 Td -(6555 #include "defs.h") 96.1073 Tj +(6555 ) 21.8426 Tj 0 -85.4403 Td -(6556 #include "traps.h") 100.476 Tj +(6556 devsw[CONSOLE].write = console_write;) 192.2146 Tj 0 -94.9336 Td -(6557 #include "x86.h") 91.7388 Tj +(6557 devsw[CONSOLE].read = console_read;) 183.4776 Tj 0 -104.427 Td -(6558 ) 21.8426 Tj -0 -113.92 Td -(6559 #define IO_TIMER1 0x040 // 8253 Timer #1) 266.479 Tj -0 -123.414 Td -(6560 ) 21.8426 Tj -0 -132.907 Td -(6561 // Frequency of all three count-down timers;) 214.057 Tj -0 -142.4 Td -(6562 // \(TIMER_FREQ/freq\) is the appropriate count) 218.426 Tj -0 -151.894 Td -(6563 // to generate a frequency of freq Hz.) 187.846 Tj -0 -161.387 Td -(6564 ) 21.8426 Tj -0 -170.88 Td -(6565 #define TIMER_FREQ 1193182) 157.267 Tj -0 -180.374 Td -(6566 #define TIMER_DIV\(x\) \(\(TIMER_FREQ+\(x\)/2\)/\(x\)\)) 231.531 Tj -0 -189.867 Td -(6567 ) 21.8426 Tj -0 -199.361 Td -(6568 #define TIMER_MODE \(IO_TIMER1 + 3\) // timer mode po\ -rt) 275.216 Tj -0 -208.854 Td -(6569 #define TIMER_SEL0 0x00 // select counter 0) 244.637 Tj -0 -218.347 Td -(6570 #define TIMER_RATEGEN 0x04 // mode 2, rate generator) 270.848 Tj -0 -227.841 Td -(6571 #define TIMER_16BIT 0x30 // r/w counter 16 bits, LS\ -B first) 305.796 Tj +(6558 use_console_lock = 1;) 122.3184 Tj +0 -113.9203 Td +(6559 ) 21.8426 Tj +0 -123.4137 Td +(6560 pic_enable\(IRQ_KBD\);) 117.9499 Tj +0 -132.9071 Td +(6561 ioapic_enable\(IRQ_KBD, 0\);) 144.161 Tj +0 -142.4004 Td +(6562 }) 26.2111 Tj +0 -151.8938 Td +(6563 ) 21.8426 Tj +0 -161.3871 Td +(6564 void) 39.3166 Tj +0 -170.8805 Td +(6565 panic\(char *s\)) 83.0018 Tj +0 -180.3739 Td +(6566 {) 26.2111 Tj +0 -189.8672 Td +(6567 int i;) 56.7907 Tj +0 -199.3606 Td +(6568 uint pcs[10];) 87.3703 Tj +0 -208.8539 Td +(6569 ) 21.8426 Tj +0 -218.3473 Td +(6570 __asm __volatile\("cli"\);) 135.4239 Tj +0 -227.8407 Td +(6571 use_console_lock = 0;) 122.3184 Tj 0 -237.334 Td -(6572 ) 21.8426 Tj -0 -246.827 Td -(6573 void) 39.3166 Tj -0 -256.321 Td -(6574 timer_init\(void\)) 91.7388 Tj -0 -265.814 Td -(6575 {) 26.2111 Tj -0 -275.307 Td -(6576 // Interrupt 100 times/sec.) 148.529 Tj -0 -284.801 Td -(6577 outb\(TIMER_MODE, TIMER_SEL0 | TIMER_RATEGEN | TIMER_16B\ -IT\);) 288.322 Tj -0 -294.294 Td -(6578 outb\(IO_TIMER1, TIMER_DIV\(100\) % 256\);) 196.583 Tj -0 -303.788 Td -(6579 outb\(IO_TIMER1, TIMER_DIV\(100\) / 256\);) 196.583 Tj -0 -313.281 Td -(6580 pic_enable\(IRQ_TIMER\);) 126.687 Tj -0 -322.774 Td +(6572 cprintf\("cpu%d: panic: ", cpu\(\)\);) 174.7406 Tj +0 -246.8274 Td +(6573 cprintf\(s\);) 78.6333 Tj +0 -256.3207 Td +(6574 cprintf\("\\n"\);) 91.7388 Tj +0 -265.8141 Td +(6575 getcallerpcs\(&s, pcs\);) 126.6869 Tj +0 -275.3075 Td +(6576 for\(i=0; i<10; i++\)) 113.5814 Tj +0 -284.8008 Td +(6577 cprintf\(" %p", pcs[i]\);) 139.7925 Tj +0 -294.2942 Td +(6578 panicked = 1; // freeze other CPU) 174.7406 Tj +0 -303.7875 Td +(6579 for\(;;\)) 61.1592 Tj +0 -313.2809 Td +(6580 ;) 43.6851 Tj +0 -322.7743 Td (6581 }) 26.2111 Tj -0 -332.268 Td +0 -332.2676 Td (6582 ) 21.8426 Tj 0 -341.761 Td (6583 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (6584 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (6585 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (6586 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (6587 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (6588 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (6589 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (6590 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (6591 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (6592 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (6593 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (6594 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (6595 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (6596 ) 21.8426 Tj 0 -474.668 Td (6597 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6598 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6599 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 65) 34.9481 Tj Q Q @@ -21595,8 +21573,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -21611,111 +21588,115 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/initcode.S Page 1) 179.109 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/timer.c Page 1) 166.0035 Tj 0 -28.4801 Td -(6600 # Initial process execs /init.) 152.898 Tj +(6600 // Intel 8253/8254/82C54 Programmable Interval Timer \(PIT\ +\).) 279.5849 Tj 0 -37.9735 Td -(6601 ) 21.8426 Tj +(6601 // Only used on uniprocessors;) 152.898 Tj 0 -47.4668 Td -(6602 #include "syscall.h") 109.213 Tj +(6602 // SMP machines use the local APIC timer.) 200.9517 Tj 0 -56.9602 Td -(6603 #include "traps.h") 100.476 Tj +(6603 ) 21.8426 Tj 0 -66.4535 Td -(6604 ) 21.8426 Tj +(6604 #include "types.h") 100.4758 Tj 0 -75.9469 Td -(6605 # exec\(init, argv\)) 100.476 Tj +(6605 #include "defs.h") 96.1073 Tj 0 -85.4403 Td -(6606 .globl start) 74.2647 Tj +(6606 #include "traps.h") 100.4758 Tj 0 -94.9336 Td -(6607 start:) 48.0537 Tj +(6607 #include "x86.h") 91.7388 Tj 0 -104.427 Td -(6608 pushl $argv) 78.6333 Tj -0 -113.92 Td -(6609 pushl $init) 78.6333 Tj -0 -123.414 Td -(6610 pushl $0) 65.5277 Tj -0 -132.907 Td -(6611 movl $SYS_exec, %eax) 117.95 Tj -0 -142.4 Td -(6612 int $T_SYSCALL) 91.7388 Tj -0 -151.894 Td -(6613 ) 21.8426 Tj -0 -161.387 Td -(6614 # for\(;;\) exit\(\);) 96.1073 Tj -0 -170.88 Td -(6615 exit:) 43.6851 Tj -0 -180.374 Td -(6616 movl $SYS_exit, %eax) 117.95 Tj -0 -189.867 Td -(6617 int $T_SYSCALL) 91.7388 Tj -0 -199.361 Td -(6618 jmp exit) 65.5277 Tj -0 -208.854 Td -(6619 ) 21.8426 Tj -0 -218.347 Td -(6620 # char init[] = "/init\\0";) 135.424 Tj -0 -227.841 Td -(6621 init:) 43.6851 Tj +(6608 ) 21.8426 Tj +0 -113.9203 Td +(6609 #define IO_TIMER1 0x040 // 8253 Timer #1) 266.4794 Tj +0 -123.4137 Td +(6610 ) 21.8426 Tj +0 -132.9071 Td +(6611 // Frequency of all three count-down timers;) 214.0572 Tj +0 -142.4004 Td +(6612 // \(TIMER_FREQ/freq\) is the appropriate count) 218.4257 Tj +0 -151.8938 Td +(6613 // to generate a frequency of freq Hz.) 187.8461 Tj +0 -161.3871 Td +(6614 ) 21.8426 Tj +0 -170.8805 Td +(6615 #define TIMER_FREQ 1193182) 157.2665 Tj +0 -180.3739 Td +(6616 #define TIMER_DIV\(x\) \(\(TIMER_FREQ+\(x\)/2\)/\(x\)\)) 231.5313 Tj +0 -189.8672 Td +(6617 ) 21.8426 Tj +0 -199.3606 Td +(6618 #define TIMER_MODE \(IO_TIMER1 + 3\) // timer mode po\ +rt) 275.2164 Tj +0 -208.8539 Td +(6619 #define TIMER_SEL0 0x00 // select counter 0) 244.6368 Tj +0 -218.3473 Td +(6620 #define TIMER_RATEGEN 0x04 // mode 2, rate generator) 270.8479 Tj +0 -227.8407 Td +(6621 #define TIMER_16BIT 0x30 // r/w counter 16 bits, LS\ +B first) 305.796 Tj 0 -237.334 Td -(6622 .string "/init\\0") 104.844 Tj -0 -246.827 Td -(6623 ) 21.8426 Tj -0 -256.321 Td -(6624 # char *argv[] = { init, 0 };) 148.529 Tj -0 -265.814 Td -(6625 .p2align 2) 65.5277 Tj -0 -275.307 Td -(6626 argv:) 43.6851 Tj -0 -284.801 Td -(6627 .long init) 74.2647 Tj -0 -294.294 Td -(6628 .long 0) 61.1592 Tj -0 -303.788 Td -(6629 ) 21.8426 Tj -0 -313.281 Td -(6630 ) 21.8426 Tj -0 -322.774 Td -(6631 ) 21.8426 Tj -0 -332.268 Td +(6622 ) 21.8426 Tj +0 -246.8274 Td +(6623 void) 39.3166 Tj +0 -256.3207 Td +(6624 timer_init\(void\)) 91.7388 Tj +0 -265.8141 Td +(6625 {) 26.2111 Tj +0 -275.3075 Td +(6626 // Interrupt 100 times/sec.) 148.5295 Tj +0 -284.8008 Td +(6627 outb\(TIMER_MODE, TIMER_SEL0 | TIMER_RATEGEN | TIMER_16B\ +IT\);) 288.322 Tj +0 -294.2942 Td +(6628 outb\(IO_TIMER1, TIMER_DIV\(100\) % 256\);) 196.5831 Tj +0 -303.7875 Td +(6629 outb\(IO_TIMER1, TIMER_DIV\(100\) / 256\);) 196.5831 Tj +0 -313.2809 Td +(6630 pic_enable\(IRQ_TIMER\);) 126.6869 Tj +0 -322.7743 Td +(6631 }) 26.2111 Tj +0 -332.2676 Td (6632 ) 21.8426 Tj 0 -341.761 Td (6633 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (6634 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (6635 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (6636 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (6637 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (6638 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (6639 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (6640 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (6641 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (6642 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (6643 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (6644 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (6645 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (6646 ) 21.8426 Tj 0 -474.668 Td (6647 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6648 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6649 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 66) 34.9481 Tj Q Q @@ -21730,111 +21711,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/init.c Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/timer.c Page 2) 166.0035 Tj 0 -28.4801 Td -(6650 // init: The initial user-level program) 192.215 Tj +(6650 // Blank page) 78.6333 Tj 0 -37.9735 Td (6651 ) 21.8426 Tj 0 -47.4668 Td -(6652 #include "types.h") 100.476 Tj +(6652 ) 21.8426 Tj 0 -56.9602 Td -(6653 #include "stat.h") 96.1073 Tj +(6653 ) 21.8426 Tj 0 -66.4535 Td -(6654 #include "user.h") 96.1073 Tj +(6654 ) 21.8426 Tj 0 -75.9469 Td -(6655 #include "fcntl.h") 100.476 Tj +(6655 ) 21.8426 Tj 0 -85.4403 Td (6656 ) 21.8426 Tj 0 -94.9336 Td -(6657 char *sh_args[] = { "sh", 0 };) 152.898 Tj +(6657 ) 21.8426 Tj 0 -104.427 Td (6658 ) 21.8426 Tj -0 -113.92 Td -(6659 int) 34.9481 Tj -0 -123.414 Td -(6660 main\(void\)) 65.5277 Tj -0 -132.907 Td -(6661 {) 26.2111 Tj -0 -142.4 Td -(6662 int pid, wpid;) 91.7388 Tj -0 -151.894 Td +0 -113.9203 Td +(6659 ) 21.8426 Tj +0 -123.4137 Td +(6660 ) 21.8426 Tj +0 -132.9071 Td +(6661 ) 21.8426 Tj +0 -142.4004 Td +(6662 ) 21.8426 Tj +0 -151.8938 Td (6663 ) 21.8426 Tj -0 -161.387 Td -(6664 if\(open\("console", O_RDWR\) < 0\){) 170.372 Tj -0 -170.88 Td -(6665 mknod\("console", 1, 1\);) 139.792 Tj -0 -180.374 Td -(6666 open\("console", O_RDWR\);) 144.161 Tj -0 -189.867 Td -(6667 }) 34.9481 Tj -0 -199.361 Td -(6668 dup\(0\); // stdout) 109.213 Tj -0 -208.854 Td -(6669 dup\(0\); // stderr) 109.213 Tj -0 -218.347 Td +0 -161.3871 Td +(6664 ) 21.8426 Tj +0 -170.8805 Td +(6665 ) 21.8426 Tj +0 -180.3739 Td +(6666 ) 21.8426 Tj +0 -189.8672 Td +(6667 ) 21.8426 Tj +0 -199.3606 Td +(6668 ) 21.8426 Tj +0 -208.8539 Td +(6669 ) 21.8426 Tj +0 -218.3473 Td (6670 ) 21.8426 Tj -0 -227.841 Td -(6671 for\(;;\){) 65.5277 Tj +0 -227.8407 Td +(6671 ) 21.8426 Tj 0 -237.334 Td -(6672 printf\(1, "init: starting sh\\n"\);) 183.478 Tj -0 -246.827 Td -(6673 pid = fork\(\);) 96.1073 Tj -0 -256.321 Td -(6674 if\(pid < 0\){) 91.7388 Tj -0 -265.814 Td -(6675 printf\(1, "init: fork failed\\n"\);) 192.215 Tj -0 -275.307 Td -(6676 exit\(\);) 78.6333 Tj -0 -284.801 Td -(6677 }) 43.6851 Tj -0 -294.294 Td -(6678 if\(pid == 0\){) 96.1073 Tj -0 -303.788 Td -(6679 exec\("sh", sh_args\);) 135.424 Tj -0 -313.281 Td -(6680 printf\(1, "init: exec sh failed\\n"\);) 205.32 Tj -0 -322.774 Td -(6681 exit\(\);) 78.6333 Tj -0 -332.268 Td -(6682 }) 43.6851 Tj +(6672 ) 21.8426 Tj +0 -246.8274 Td +(6673 ) 21.8426 Tj +0 -256.3207 Td +(6674 ) 21.8426 Tj +0 -265.8141 Td +(6675 ) 21.8426 Tj +0 -275.3075 Td +(6676 ) 21.8426 Tj +0 -284.8008 Td +(6677 ) 21.8426 Tj +0 -294.2942 Td +(6678 ) 21.8426 Tj +0 -303.7875 Td +(6679 ) 21.8426 Tj +0 -313.2809 Td +(6680 ) 21.8426 Tj +0 -322.7743 Td +(6681 ) 21.8426 Tj +0 -332.2676 Td +(6682 ) 21.8426 Tj 0 -341.761 Td -(6683 while\(\(wpid=wait\(\)\) >= 0 && wpid != pid\)) 214.057 Tj -0 -351.254 Td -(6684 printf\(1, "zombie!\\n"\);) 148.529 Tj -0 -360.748 Td -(6685 }) 34.9481 Tj -0 -370.241 Td -(6686 }) 26.2111 Tj -0 -379.734 Td +(6683 ) 21.8426 Tj +0 -351.2543 Td +(6684 ) 21.8426 Tj +0 -360.7477 Td +(6685 ) 21.8426 Tj +0 -370.2411 Td +(6686 ) 21.8426 Tj +0 -379.7344 Td (6687 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (6688 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (6689 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (6690 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (6691 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (6692 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (6693 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (6694 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (6695 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (6696 ) 21.8426 Tj 0 -474.668 Td (6697 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6698 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6699 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 66) 34.9481 Tj Q Q @@ -21863,8 +21844,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -21879,111 +21859,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/usys.S Page 1) 161.635 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/initcode.S Page 1) 179.1091 Tj 0 -28.4801 Td -(6700 #include "syscall.h") 109.213 Tj +(6700 # Initial process execs /init.) 152.898 Tj 0 -37.9735 Td -(6701 #include "traps.h") 100.476 Tj +(6701 ) 21.8426 Tj 0 -47.4668 Td -(6702 ) 21.8426 Tj +(6702 #include "syscall.h") 109.2129 Tj 0 -56.9602 Td -(6703 #define STUB\(name\) \\) 109.213 Tj +(6703 #include "traps.h") 100.4758 Tj 0 -66.4535 Td -(6704 .globl name; \\) 91.7388 Tj +(6704 ) 21.8426 Tj 0 -75.9469 Td -(6705 name: \\) 61.1592 Tj +(6705 # exec\(init, argv\)) 100.4758 Tj 0 -85.4403 Td -(6706 movl $SYS_ ## name, %eax; \\) 157.267 Tj +(6706 .globl start) 74.2647 Tj 0 -94.9336 Td -(6707 int $T_SYSCALL; \\) 113.581 Tj +(6707 start:) 48.0537 Tj 0 -104.427 Td -(6708 ret) 52.4222 Tj -0 -113.92 Td -(6709 ) 21.8426 Tj -0 -123.414 Td -(6710 STUB\(fork\)) 65.5277 Tj -0 -132.907 Td -(6711 STUB\(exit\)) 65.5277 Tj -0 -142.4 Td -(6712 STUB\(wait\)) 65.5277 Tj -0 -151.894 Td -(6713 STUB\(pipe\)) 65.5277 Tj -0 -161.387 Td -(6714 STUB\(read\)) 65.5277 Tj -0 -170.88 Td -(6715 STUB\(write\)) 69.8962 Tj -0 -180.374 Td -(6716 STUB\(close\)) 69.8962 Tj -0 -189.867 Td -(6717 STUB\(kill\)) 65.5277 Tj -0 -199.361 Td -(6718 STUB\(exec\)) 65.5277 Tj -0 -208.854 Td -(6719 STUB\(open\)) 65.5277 Tj -0 -218.347 Td -(6720 STUB\(mknod\)) 69.8962 Tj -0 -227.841 Td -(6721 STUB\(unlink\)) 74.2647 Tj +(6708 pushl $argv) 78.6333 Tj +0 -113.9203 Td +(6709 pushl $init) 78.6333 Tj +0 -123.4137 Td +(6710 pushl $0) 65.5277 Tj +0 -132.9071 Td +(6711 movl $SYS_exec, %eax) 117.9499 Tj +0 -142.4004 Td +(6712 int $T_SYSCALL) 91.7388 Tj +0 -151.8938 Td +(6713 ) 21.8426 Tj +0 -161.3871 Td +(6714 # for\(;;\) exit\(\);) 96.1073 Tj +0 -170.8805 Td +(6715 exit:) 43.6851 Tj +0 -180.3739 Td +(6716 movl $SYS_exit, %eax) 117.9499 Tj +0 -189.8672 Td +(6717 int $T_SYSCALL) 91.7388 Tj +0 -199.3606 Td +(6718 jmp exit) 65.5277 Tj +0 -208.8539 Td +(6719 ) 21.8426 Tj +0 -218.3473 Td +(6720 # char init[] = "/init\\0";) 135.4239 Tj +0 -227.8407 Td +(6721 init:) 43.6851 Tj 0 -237.334 Td -(6722 STUB\(fstat\)) 69.8962 Tj -0 -246.827 Td -(6723 STUB\(link\)) 65.5277 Tj -0 -256.321 Td -(6724 STUB\(mkdir\)) 69.8962 Tj -0 -265.814 Td -(6725 STUB\(chdir\)) 69.8962 Tj -0 -275.307 Td -(6726 STUB\(dup\)) 61.1592 Tj -0 -284.801 Td -(6727 STUB\(getpid\)) 74.2647 Tj -0 -294.294 Td -(6728 STUB\(sbrk\)) 65.5277 Tj -0 -303.788 Td -(6729 STUB\(sleep\)) 69.8962 Tj -0 -313.281 Td +(6722 .string "/init\\0") 104.8443 Tj +0 -246.8274 Td +(6723 ) 21.8426 Tj +0 -256.3207 Td +(6724 # char *argv[] = { init, 0 };) 148.5295 Tj +0 -265.8141 Td +(6725 .p2align 2) 65.5277 Tj +0 -275.3075 Td +(6726 argv:) 43.6851 Tj +0 -284.8008 Td +(6727 .long init) 74.2647 Tj +0 -294.2942 Td +(6728 .long 0) 61.1592 Tj +0 -303.7875 Td +(6729 ) 21.8426 Tj +0 -313.2809 Td (6730 ) 21.8426 Tj -0 -322.774 Td +0 -322.7743 Td (6731 ) 21.8426 Tj -0 -332.268 Td +0 -332.2676 Td (6732 ) 21.8426 Tj 0 -341.761 Td (6733 ) 21.8426 Tj -0 -351.254 Td +0 -351.2543 Td (6734 ) 21.8426 Tj -0 -360.748 Td +0 -360.7477 Td (6735 ) 21.8426 Tj -0 -370.241 Td +0 -370.2411 Td (6736 ) 21.8426 Tj -0 -379.734 Td +0 -379.7344 Td (6737 ) 21.8426 Tj -0 -389.228 Td +0 -389.2278 Td (6738 ) 21.8426 Tj -0 -398.721 Td +0 -398.7211 Td (6739 ) 21.8426 Tj -0 -408.214 Td +0 -408.2145 Td (6740 ) 21.8426 Tj -0 -417.708 Td +0 -417.7079 Td (6741 ) 21.8426 Tj -0 -427.201 Td +0 -427.2012 Td (6742 ) 21.8426 Tj -0 -436.695 Td +0 -436.6946 Td (6743 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (6744 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (6745 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (6746 ) 21.8426 Tj 0 -474.668 Td (6747 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6748 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6749 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 67) 34.9481 Tj Q Q @@ -21998,111 +21978,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 1) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/init.c Page 1) 161.635 Tj 0 -28.4801 Td -(6750 // Shell.) 61.1592 Tj +(6750 // init: The initial user-level program) 192.2146 Tj 0 -37.9735 Td (6751 ) 21.8426 Tj 0 -47.4668 Td -(6752 #include "types.h") 100.476 Tj +(6752 #include "types.h") 100.4758 Tj 0 -56.9602 Td -(6753 #include "user.h") 96.1073 Tj +(6753 #include "stat.h") 96.1073 Tj 0 -66.4535 Td -(6754 #include "fcntl.h") 100.476 Tj +(6754 #include "user.h") 96.1073 Tj 0 -75.9469 Td -(6755 ) 21.8426 Tj +(6755 #include "fcntl.h") 100.4758 Tj 0 -85.4403 Td -(6756 // Parsed command representation) 161.635 Tj +(6756 ) 21.8426 Tj 0 -94.9336 Td -(6757 #define EXEC 1) 87.3703 Tj +(6757 char *sh_args[] = { "sh", 0 };) 152.898 Tj 0 -104.427 Td -(6758 #define REDIR 2) 87.3703 Tj -0 -113.92 Td -(6759 #define PIPE 3) 87.3703 Tj -0 -123.414 Td -(6760 #define LIST 4) 87.3703 Tj -0 -132.907 Td -(6761 #define BACK 5) 87.3703 Tj -0 -142.4 Td -(6762 ) 21.8426 Tj -0 -151.894 Td -(6763 #define MAXARGS 10) 100.476 Tj -0 -161.387 Td -(6764 ) 21.8426 Tj -0 -170.88 Td -(6765 struct cmd {) 74.2647 Tj -0 -180.374 Td -(6766 int type;) 69.8962 Tj -0 -189.867 Td -(6767 };) 30.5796 Tj -0 -199.361 Td -(6768 ) 21.8426 Tj -0 -208.854 Td -(6769 struct execcmd {) 91.7388 Tj -0 -218.347 Td -(6770 int type;) 69.8962 Tj -0 -227.841 Td -(6771 char *argv[MAXARGS];) 117.95 Tj +(6758 ) 21.8426 Tj +0 -113.9203 Td +(6759 int) 34.9481 Tj +0 -123.4137 Td +(6760 main\(void\)) 65.5277 Tj +0 -132.9071 Td +(6761 {) 26.2111 Tj +0 -142.4004 Td +(6762 int pid, wpid;) 91.7388 Tj +0 -151.8938 Td +(6763 ) 21.8426 Tj +0 -161.3871 Td +(6764 if\(open\("console", O_RDWR\) < 0\){) 170.3721 Tj +0 -170.8805 Td +(6765 mknod\("console", 1, 1\);) 139.7925 Tj +0 -180.3739 Td +(6766 open\("console", O_RDWR\);) 144.161 Tj +0 -189.8672 Td +(6767 }) 34.9481 Tj +0 -199.3606 Td +(6768 dup\(0\); // stdout) 109.2129 Tj +0 -208.8539 Td +(6769 dup\(0\); // stderr) 109.2129 Tj +0 -218.3473 Td +(6770 ) 21.8426 Tj +0 -227.8407 Td +(6771 for\(;;\){) 65.5277 Tj 0 -237.334 Td -(6772 char *eargv[MAXARGS];) 122.318 Tj -0 -246.827 Td -(6773 };) 30.5796 Tj -0 -256.321 Td -(6774 ) 21.8426 Tj -0 -265.814 Td -(6775 struct redircmd {) 96.1073 Tj -0 -275.307 Td -(6776 int type;) 69.8962 Tj -0 -284.801 Td -(6777 struct cmd *cmd;) 100.476 Tj -0 -294.294 Td -(6778 char *file;) 78.6333 Tj -0 -303.788 Td -(6779 char *efile;) 83.0018 Tj -0 -313.281 Td -(6780 int mode;) 69.8962 Tj -0 -322.774 Td -(6781 int fd;) 61.1592 Tj -0 -332.268 Td -(6782 };) 30.5796 Tj +(6772 printf\(1, "init: starting sh\\n"\);) 183.4776 Tj +0 -246.8274 Td +(6773 pid = fork\(\);) 96.1073 Tj +0 -256.3207 Td +(6774 if\(pid < 0\){) 91.7388 Tj +0 -265.8141 Td +(6775 printf\(1, "init: fork failed\\n"\);) 192.2146 Tj +0 -275.3075 Td +(6776 exit\(\);) 78.6333 Tj +0 -284.8008 Td +(6777 }) 43.6851 Tj +0 -294.2942 Td +(6778 if\(pid == 0\){) 96.1073 Tj +0 -303.7875 Td +(6779 exec\("sh", sh_args\);) 135.4239 Tj +0 -313.2809 Td +(6780 printf\(1, "init: exec sh failed\\n"\);) 205.3202 Tj +0 -322.7743 Td +(6781 exit\(\);) 78.6333 Tj +0 -332.2676 Td +(6782 }) 43.6851 Tj 0 -341.761 Td -(6783 ) 21.8426 Tj -0 -351.254 Td -(6784 struct pipecmd {) 91.7388 Tj -0 -360.748 Td -(6785 int type;) 69.8962 Tj -0 -370.241 Td -(6786 struct cmd *left;) 104.844 Tj -0 -379.734 Td -(6787 struct cmd *right;) 109.213 Tj -0 -389.228 Td -(6788 };) 30.5796 Tj -0 -398.721 Td +(6783 while\(\(wpid=wait\(\)\) >= 0 && wpid != pid\)) 214.0572 Tj +0 -351.2543 Td +(6784 printf\(1, "zombie!\\n"\);) 148.5295 Tj +0 -360.7477 Td +(6785 }) 34.9481 Tj +0 -370.2411 Td +(6786 }) 26.2111 Tj +0 -379.7344 Td +(6787 ) 21.8426 Tj +0 -389.2278 Td +(6788 ) 21.8426 Tj +0 -398.7211 Td (6789 ) 21.8426 Tj -0 -408.214 Td -(6790 struct listcmd {) 91.7388 Tj -0 -417.708 Td -(6791 int type;) 69.8962 Tj -0 -427.201 Td -(6792 struct cmd *left;) 104.844 Tj -0 -436.695 Td -(6793 struct cmd *right;) 109.213 Tj -0 -446.188 Td -(6794 };) 30.5796 Tj -0 -455.681 Td +0 -408.2145 Td +(6790 ) 21.8426 Tj +0 -417.7079 Td +(6791 ) 21.8426 Tj +0 -427.2012 Td +(6792 ) 21.8426 Tj +0 -436.6946 Td +(6793 ) 21.8426 Tj +0 -446.1879 Td +(6794 ) 21.8426 Tj +0 -455.6813 Td (6795 ) 21.8426 Tj -0 -465.175 Td -(6796 struct backcmd {) 91.7388 Tj +0 -465.1747 Td +(6796 ) 21.8426 Tj 0 -474.668 Td -(6797 int type;) 69.8962 Tj -0 -484.161 Td -(6798 struct cmd *cmd;) 100.476 Tj -0 -493.655 Td -(6799 };) 30.5796 Tj -0 -522.135 Td +(6797 ) 21.8426 Tj +0 -484.1614 Td +(6798 ) 21.8426 Tj +0 -493.6547 Td +(6799 ) 21.8426 Tj +0 -522.1348 Td (Sheet 67) 34.9481 Tj Q Q @@ -22131,8 +22111,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -22147,111 +22126,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 2) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/usys.S Page 1) 161.635 Tj 0 -28.4801 Td -(6800 int fork1\(void\); // Fork but panics on failure.) 231.531 Tj +(6800 #include "syscall.h") 109.2129 Tj 0 -37.9735 Td -(6801 void panic\(char*\);) 100.476 Tj +(6801 #include "traps.h") 100.4758 Tj 0 -47.4668 Td -(6802 struct cmd *parsecmd\(char*\);) 144.161 Tj +(6802 ) 21.8426 Tj 0 -56.9602 Td -(6803 ) 21.8426 Tj +(6803 #define STUB\(name\) \\) 109.2129 Tj 0 -66.4535 Td -(6804 // Execute cmd. Never returns.) 157.267 Tj +(6804 .globl name; \\) 91.7388 Tj 0 -75.9469 Td -(6805 void) 39.3166 Tj +(6805 name: \\) 61.1592 Tj 0 -85.4403 Td -(6806 runcmd\(struct cmd *cmd\)) 122.318 Tj +(6806 movl $SYS_ ## name, %eax; \\) 157.2665 Tj 0 -94.9336 Td -(6807 {) 26.2111 Tj +(6807 int $T_SYSCALL; \\) 113.5814 Tj 0 -104.427 Td -(6808 int p[2];) 69.8962 Tj -0 -113.92 Td -(6809 struct backcmd *bcmd;) 122.318 Tj -0 -123.414 Td -(6810 struct execcmd *ecmd;) 122.318 Tj -0 -132.907 Td -(6811 struct listcmd *lcmd;) 122.318 Tj -0 -142.4 Td -(6812 struct pipecmd *pcmd;) 122.318 Tj -0 -151.894 Td -(6813 struct redircmd *rcmd;) 126.687 Tj -0 -161.387 Td -(6814 ) 21.8426 Tj -0 -170.88 Td -(6815 if\(cmd == 0\)) 83.0018 Tj -0 -180.374 Td -(6816 exit\(\);) 69.8962 Tj -0 -189.867 Td -(6817 ) 21.8426 Tj -0 -199.361 Td -(6818 switch\(cmd->type\){) 109.213 Tj -0 -208.854 Td -(6819 default:) 65.5277 Tj -0 -218.347 Td -(6820 panic\("runcmd"\);) 109.213 Tj -0 -227.841 Td -(6821 ) 21.8426 Tj +(6808 ret) 52.4222 Tj +0 -113.9203 Td +(6809 ) 21.8426 Tj +0 -123.4137 Td +(6810 STUB\(fork\)) 65.5277 Tj +0 -132.9071 Td +(6811 STUB\(exit\)) 65.5277 Tj +0 -142.4004 Td +(6812 STUB\(wait\)) 65.5277 Tj +0 -151.8938 Td +(6813 STUB\(pipe\)) 65.5277 Tj +0 -161.3871 Td +(6814 STUB\(read\)) 65.5277 Tj +0 -170.8805 Td +(6815 STUB\(write\)) 69.8962 Tj +0 -180.3739 Td +(6816 STUB\(close\)) 69.8962 Tj +0 -189.8672 Td +(6817 STUB\(kill\)) 65.5277 Tj +0 -199.3606 Td +(6818 STUB\(exec\)) 65.5277 Tj +0 -208.8539 Td +(6819 STUB\(open\)) 65.5277 Tj +0 -218.3473 Td +(6820 STUB\(mknod\)) 69.8962 Tj +0 -227.8407 Td +(6821 STUB\(unlink\)) 74.2647 Tj 0 -237.334 Td -(6822 case EXEC:) 74.2647 Tj -0 -246.827 Td -(6823 ecmd = \(struct execcmd*\)cmd;) 161.635 Tj -0 -256.321 Td -(6824 if\(ecmd->argv[0] == 0\)) 135.424 Tj -0 -265.814 Td -(6825 exit\(\);) 78.6333 Tj -0 -275.307 Td -(6826 exec\(ecmd->argv[0], ecmd->argv\);) 179.109 Tj -0 -284.801 Td -(6827 printf\(2, "exec %s failed\\n", ecmd->argv[0]\);) 235.9 Tj -0 -294.294 Td -(6828 break;) 65.5277 Tj -0 -303.788 Td -(6829 ) 21.8426 Tj -0 -313.281 Td -(6830 case REDIR:) 78.6333 Tj -0 -322.774 Td -(6831 rcmd = \(struct redircmd*\)cmd;) 166.004 Tj -0 -332.268 Td -(6832 close\(rcmd->fd\);) 109.213 Tj +(6822 STUB\(fstat\)) 69.8962 Tj +0 -246.8274 Td +(6823 STUB\(link\)) 65.5277 Tj +0 -256.3207 Td +(6824 STUB\(mkdir\)) 69.8962 Tj +0 -265.8141 Td +(6825 STUB\(chdir\)) 69.8962 Tj +0 -275.3075 Td +(6826 STUB\(dup\)) 61.1592 Tj +0 -284.8008 Td +(6827 STUB\(getpid\)) 74.2647 Tj +0 -294.2942 Td +(6828 STUB\(sbrk\)) 65.5277 Tj +0 -303.7875 Td +(6829 STUB\(sleep\)) 69.8962 Tj +0 -313.2809 Td +(6830 ) 21.8426 Tj +0 -322.7743 Td +(6831 ) 21.8426 Tj +0 -332.2676 Td +(6832 ) 21.8426 Tj 0 -341.761 Td -(6833 if\(open\(rcmd->file, rcmd->mode\) < 0\){) 200.952 Tj -0 -351.254 Td -(6834 printf\(2, "open %s failed\\n", rcmd->file\);) 231.531 Tj -0 -360.748 Td -(6835 exit\(\);) 78.6333 Tj -0 -370.241 Td -(6836 }) 43.6851 Tj -0 -379.734 Td -(6837 runcmd\(rcmd->cmd\);) 117.95 Tj -0 -389.228 Td -(6838 break;) 65.5277 Tj -0 -398.721 Td +(6833 ) 21.8426 Tj +0 -351.2543 Td +(6834 ) 21.8426 Tj +0 -360.7477 Td +(6835 ) 21.8426 Tj +0 -370.2411 Td +(6836 ) 21.8426 Tj +0 -379.7344 Td +(6837 ) 21.8426 Tj +0 -389.2278 Td +(6838 ) 21.8426 Tj +0 -398.7211 Td (6839 ) 21.8426 Tj -0 -408.214 Td -(6840 case LIST:) 74.2647 Tj -0 -417.708 Td -(6841 lcmd = \(struct listcmd*\)cmd;) 161.635 Tj -0 -427.201 Td -(6842 if\(fork1\(\) == 0\)) 109.213 Tj -0 -436.695 Td -(6843 runcmd\(lcmd->left\);) 131.055 Tj -0 -446.188 Td -(6844 wait\(\);) 69.8962 Tj -0 -455.681 Td -(6845 runcmd\(lcmd->right\);) 126.687 Tj -0 -465.175 Td -(6846 break;) 65.5277 Tj +0 -408.2145 Td +(6840 ) 21.8426 Tj +0 -417.7079 Td +(6841 ) 21.8426 Tj +0 -427.2012 Td +(6842 ) 21.8426 Tj +0 -436.6946 Td +(6843 ) 21.8426 Tj +0 -446.1879 Td +(6844 ) 21.8426 Tj +0 -455.6813 Td +(6845 ) 21.8426 Tj +0 -465.1747 Td +(6846 ) 21.8426 Tj 0 -474.668 Td (6847 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6848 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6849 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 68) 34.9481 Tj Q Q @@ -22266,111 +22245,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 3) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 1) 152.898 Tj 0 -28.4801 Td -(6850 case PIPE:) 74.2647 Tj +(6850 // Shell.) 61.1592 Tj 0 -37.9735 Td -(6851 pcmd = \(struct pipecmd*\)cmd;) 161.635 Tj +(6851 ) 21.8426 Tj 0 -47.4668 Td -(6852 if\(pipe\(p\) < 0\)) 104.844 Tj +(6852 #include "types.h") 100.4758 Tj 0 -56.9602 Td -(6853 panic\("pipe"\);) 109.213 Tj +(6853 #include "user.h") 96.1073 Tj 0 -66.4535 Td -(6854 if\(fork1\(\) == 0\){) 113.581 Tj +(6854 #include "fcntl.h") 100.4758 Tj 0 -75.9469 Td -(6855 close\(1\);) 87.3703 Tj +(6855 ) 21.8426 Tj 0 -85.4403 Td -(6856 dup\(p[1]\);) 91.7388 Tj +(6856 // Parsed command representation) 161.635 Tj 0 -94.9336 Td -(6857 close\(p[0]\);) 100.476 Tj +(6857 #define EXEC 1) 87.3703 Tj 0 -104.427 Td -(6858 close\(p[1]\);) 100.476 Tj -0 -113.92 Td -(6859 runcmd\(pcmd->left\);) 131.055 Tj -0 -123.414 Td -(6860 }) 43.6851 Tj -0 -132.907 Td -(6861 if\(fork1\(\) == 0\){) 113.581 Tj -0 -142.4 Td -(6862 close\(0\);) 87.3703 Tj -0 -151.894 Td -(6863 dup\(p[0]\);) 91.7388 Tj -0 -161.387 Td -(6864 close\(p[0]\);) 100.476 Tj -0 -170.88 Td -(6865 close\(p[1]\);) 100.476 Tj -0 -180.374 Td -(6866 runcmd\(pcmd->right\);) 135.424 Tj -0 -189.867 Td -(6867 }) 43.6851 Tj -0 -199.361 Td -(6868 close\(p[0]\);) 91.7388 Tj -0 -208.854 Td -(6869 close\(p[1]\);) 91.7388 Tj -0 -218.347 Td -(6870 wait\(\);) 69.8962 Tj -0 -227.841 Td -(6871 wait\(\);) 69.8962 Tj +(6858 #define REDIR 2) 87.3703 Tj +0 -113.9203 Td +(6859 #define PIPE 3) 87.3703 Tj +0 -123.4137 Td +(6860 #define LIST 4) 87.3703 Tj +0 -132.9071 Td +(6861 #define BACK 5) 87.3703 Tj +0 -142.4004 Td +(6862 ) 21.8426 Tj +0 -151.8938 Td +(6863 #define MAXARGS 10) 100.4758 Tj +0 -161.3871 Td +(6864 ) 21.8426 Tj +0 -170.8805 Td +(6865 struct cmd {) 74.2647 Tj +0 -180.3739 Td +(6866 int type;) 69.8962 Tj +0 -189.8672 Td +(6867 };) 30.5796 Tj +0 -199.3606 Td +(6868 ) 21.8426 Tj +0 -208.8539 Td +(6869 struct execcmd {) 91.7388 Tj +0 -218.3473 Td +(6870 int type;) 69.8962 Tj +0 -227.8407 Td +(6871 char *argv[MAXARGS];) 117.9499 Tj 0 -237.334 Td -(6872 break;) 65.5277 Tj -0 -246.827 Td -(6873 ) 21.8426 Tj -0 -256.321 Td -(6874 case BACK:) 74.2647 Tj -0 -265.814 Td -(6875 bcmd = \(struct backcmd*\)cmd;) 161.635 Tj -0 -275.307 Td -(6876 if\(fork1\(\) == 0\)) 109.213 Tj -0 -284.801 Td -(6877 runcmd\(bcmd->cmd\);) 126.687 Tj -0 -294.294 Td -(6878 break;) 65.5277 Tj -0 -303.788 Td -(6879 }) 34.9481 Tj -0 -313.281 Td -(6880 exit\(\);) 61.1592 Tj -0 -322.774 Td -(6881 }) 26.2111 Tj -0 -332.268 Td -(6882 ) 21.8426 Tj +(6872 char *eargv[MAXARGS];) 122.3184 Tj +0 -246.8274 Td +(6873 };) 30.5796 Tj +0 -256.3207 Td +(6874 ) 21.8426 Tj +0 -265.8141 Td +(6875 struct redircmd {) 96.1073 Tj +0 -275.3075 Td +(6876 int type;) 69.8962 Tj +0 -284.8008 Td +(6877 struct cmd *cmd;) 100.4758 Tj +0 -294.2942 Td +(6878 char *file;) 78.6333 Tj +0 -303.7875 Td +(6879 char *efile;) 83.0018 Tj +0 -313.2809 Td +(6880 int mode;) 69.8962 Tj +0 -322.7743 Td +(6881 int fd;) 61.1592 Tj +0 -332.2676 Td +(6882 };) 30.5796 Tj 0 -341.761 Td -(6883 int) 34.9481 Tj -0 -351.254 Td -(6884 getcmd\(char *buf, int nbuf\)) 139.792 Tj -0 -360.748 Td -(6885 {) 26.2111 Tj -0 -370.241 Td -(6886 printf\(2, "$ "\);) 100.476 Tj -0 -379.734 Td -(6887 memset\(buf, 0, nbuf\);) 122.318 Tj -0 -389.228 Td -(6888 gets\(buf, nbuf\);) 100.476 Tj -0 -398.721 Td -(6889 if\(buf[0] == 0\) // EOF) 126.687 Tj -0 -408.214 Td -(6890 return -1;) 83.0018 Tj -0 -417.708 Td -(6891 return 0;) 69.8962 Tj -0 -427.201 Td -(6892 }) 26.2111 Tj -0 -436.695 Td -(6893 ) 21.8426 Tj -0 -446.188 Td -(6894 ) 21.8426 Tj -0 -455.681 Td +(6883 ) 21.8426 Tj +0 -351.2543 Td +(6884 struct pipecmd {) 91.7388 Tj +0 -360.7477 Td +(6885 int type;) 69.8962 Tj +0 -370.2411 Td +(6886 struct cmd *left;) 104.8443 Tj +0 -379.7344 Td +(6887 struct cmd *right;) 109.2129 Tj +0 -389.2278 Td +(6888 };) 30.5796 Tj +0 -398.7211 Td +(6889 ) 21.8426 Tj +0 -408.2145 Td +(6890 struct listcmd {) 91.7388 Tj +0 -417.7079 Td +(6891 int type;) 69.8962 Tj +0 -427.2012 Td +(6892 struct cmd *left;) 104.8443 Tj +0 -436.6946 Td +(6893 struct cmd *right;) 109.2129 Tj +0 -446.1879 Td +(6894 };) 30.5796 Tj +0 -455.6813 Td (6895 ) 21.8426 Tj -0 -465.175 Td -(6896 ) 21.8426 Tj +0 -465.1747 Td +(6896 struct backcmd {) 91.7388 Tj 0 -474.668 Td -(6897 ) 21.8426 Tj -0 -484.161 Td -(6898 ) 21.8426 Tj -0 -493.655 Td -(6899 ) 21.8426 Tj -0 -522.135 Td +(6897 int type;) 69.8962 Tj +0 -484.1614 Td +(6898 struct cmd *cmd;) 100.4758 Tj +0 -493.6547 Td +(6899 };) 30.5796 Tj +0 -522.1348 Td (Sheet 68) 34.9481 Tj Q Q @@ -22399,8 +22378,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -22415,111 +22393,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 4) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 2) 152.898 Tj 0 -28.4801 Td -(6900 int) 34.9481 Tj +(6900 int fork1\(void\); // Fork but panics on failure.) 231.5313 Tj 0 -37.9735 Td -(6901 main\(void\)) 65.5277 Tj +(6901 void panic\(char*\);) 100.4758 Tj 0 -47.4668 Td -(6902 {) 26.2111 Tj +(6902 struct cmd *parsecmd\(char*\);) 144.161 Tj 0 -56.9602 Td -(6903 static char buf[100];) 122.318 Tj +(6903 ) 21.8426 Tj 0 -66.4535 Td -(6904 int fd;) 61.1592 Tj +(6904 // Execute cmd. Never returns.) 157.2665 Tj 0 -75.9469 Td -(6905 ) 21.8426 Tj +(6905 void) 39.3166 Tj 0 -85.4403 Td -(6906 // Assumes three file descriptors open.) 200.952 Tj +(6906 runcmd\(struct cmd *cmd\)) 122.3184 Tj 0 -94.9336 Td -(6907 while\(\(fd = open\("console", O_RDWR\)\) >= 0\){) 218.426 Tj +(6907 {) 26.2111 Tj 0 -104.427 Td -(6908 if\(fd >= 3\){) 91.7388 Tj -0 -113.92 Td -(6909 close\(fd\);) 91.7388 Tj -0 -123.414 Td -(6910 break;) 74.2647 Tj -0 -132.907 Td -(6911 }) 43.6851 Tj -0 -142.4 Td -(6912 }) 34.9481 Tj -0 -151.894 Td -(6913 ) 21.8426 Tj -0 -161.387 Td -(6914 // Read and run input commands.) 166.004 Tj -0 -170.88 Td -(6915 while\(getcmd\(buf, sizeof\(buf\)\) >= 0\){) 192.215 Tj -0 -180.374 Td -(6916 if\(fork1\(\) == 0\)) 109.213 Tj -0 -189.867 Td -(6917 runcmd\(parsecmd\(buf\)\);) 144.161 Tj -0 -199.361 Td -(6918 wait\(\);) 69.8962 Tj -0 -208.854 Td -(6919 }) 34.9481 Tj -0 -218.347 Td -(6920 exit\(\);) 61.1592 Tj -0 -227.841 Td -(6921 }) 26.2111 Tj +(6908 int p[2];) 69.8962 Tj +0 -113.9203 Td +(6909 struct backcmd *bcmd;) 122.3184 Tj +0 -123.4137 Td +(6910 struct execcmd *ecmd;) 122.3184 Tj +0 -132.9071 Td +(6911 struct listcmd *lcmd;) 122.3184 Tj +0 -142.4004 Td +(6912 struct pipecmd *pcmd;) 122.3184 Tj +0 -151.8938 Td +(6913 struct redircmd *rcmd;) 126.6869 Tj +0 -161.3871 Td +(6914 ) 21.8426 Tj +0 -170.8805 Td +(6915 if\(cmd == 0\)) 83.0018 Tj +0 -180.3739 Td +(6916 exit\(\);) 69.8962 Tj +0 -189.8672 Td +(6917 ) 21.8426 Tj +0 -199.3606 Td +(6918 switch\(cmd->type\){) 109.2129 Tj +0 -208.8539 Td +(6919 default:) 65.5277 Tj +0 -218.3473 Td +(6920 panic\("runcmd"\);) 109.2129 Tj +0 -227.8407 Td +(6921 ) 21.8426 Tj 0 -237.334 Td -(6922 ) 21.8426 Tj -0 -246.827 Td -(6923 void) 39.3166 Tj -0 -256.321 Td -(6924 panic\(char *s\)) 83.0018 Tj -0 -265.814 Td -(6925 {) 26.2111 Tj -0 -275.307 Td -(6926 printf\(2, "%s\\n", s\);) 122.318 Tj -0 -284.801 Td -(6927 exit\(\);) 61.1592 Tj -0 -294.294 Td -(6928 }) 26.2111 Tj -0 -303.788 Td +(6922 case EXEC:) 74.2647 Tj +0 -246.8274 Td +(6923 ecmd = \(struct execcmd*\)cmd;) 161.635 Tj +0 -256.3207 Td +(6924 if\(ecmd->argv[0] == 0\)) 135.4239 Tj +0 -265.8141 Td +(6925 exit\(\);) 78.6333 Tj +0 -275.3075 Td +(6926 exec\(ecmd->argv[0], ecmd->argv\);) 179.1091 Tj +0 -284.8008 Td +(6927 printf\(2, "exec %s failed\\n", ecmd->argv[0]\);) 235.8998 Tj +0 -294.2942 Td +(6928 break;) 65.5277 Tj +0 -303.7875 Td (6929 ) 21.8426 Tj -0 -313.281 Td -(6930 int) 34.9481 Tj -0 -322.774 Td -(6931 fork1\(void\)) 69.8962 Tj -0 -332.268 Td -(6932 {) 26.2111 Tj +0 -313.2809 Td +(6930 case REDIR:) 78.6333 Tj +0 -322.7743 Td +(6931 rcmd = \(struct redircmd*\)cmd;) 166.0035 Tj +0 -332.2676 Td +(6932 close\(rcmd->fd\);) 109.2129 Tj 0 -341.761 Td -(6933 int pid;) 65.5277 Tj -0 -351.254 Td -(6934 ) 21.8426 Tj -0 -360.748 Td -(6935 pid = fork\(\);) 87.3703 Tj -0 -370.241 Td -(6936 if\(pid == -1\)) 87.3703 Tj -0 -379.734 Td -(6937 panic\("fork"\);) 100.476 Tj -0 -389.228 Td -(6938 return pid;) 78.6333 Tj -0 -398.721 Td -(6939 }) 26.2111 Tj -0 -408.214 Td -(6940 ) 21.8426 Tj -0 -417.708 Td -(6941 ) 21.8426 Tj -0 -427.201 Td -(6942 ) 21.8426 Tj -0 -436.695 Td -(6943 ) 21.8426 Tj -0 -446.188 Td -(6944 ) 21.8426 Tj -0 -455.681 Td -(6945 ) 21.8426 Tj -0 -465.175 Td -(6946 ) 21.8426 Tj +(6933 if\(open\(rcmd->file, rcmd->mode\) < 0\){) 200.9517 Tj +0 -351.2543 Td +(6934 printf\(2, "open %s failed\\n", rcmd->file\);) 231.5313 Tj +0 -360.7477 Td +(6935 exit\(\);) 78.6333 Tj +0 -370.2411 Td +(6936 }) 43.6851 Tj +0 -379.7344 Td +(6937 runcmd\(rcmd->cmd\);) 117.9499 Tj +0 -389.2278 Td +(6938 break;) 65.5277 Tj +0 -398.7211 Td +(6939 ) 21.8426 Tj +0 -408.2145 Td +(6940 case LIST:) 74.2647 Tj +0 -417.7079 Td +(6941 lcmd = \(struct listcmd*\)cmd;) 161.635 Tj +0 -427.2012 Td +(6942 if\(fork1\(\) == 0\)) 109.2129 Tj +0 -436.6946 Td +(6943 runcmd\(lcmd->left\);) 131.0554 Tj +0 -446.1879 Td +(6944 wait\(\);) 69.8962 Tj +0 -455.6813 Td +(6945 runcmd\(lcmd->right\);) 126.6869 Tj +0 -465.1747 Td +(6946 break;) 65.5277 Tj 0 -474.668 Td (6947 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6948 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6949 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 69) 34.9481 Tj Q Q @@ -22534,112 +22512,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 5) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 3) 152.898 Tj 0 -28.4801 Td -(6950 // Constructors) 87.3703 Tj +(6950 case PIPE:) 74.2647 Tj 0 -37.9735 Td -(6951 ) 21.8426 Tj +(6951 pcmd = \(struct pipecmd*\)cmd;) 161.635 Tj 0 -47.4668 Td -(6952 struct cmd*) 69.8962 Tj +(6952 if\(pipe\(p\) < 0\)) 104.8443 Tj 0 -56.9602 Td -(6953 execcmd\(void\)) 78.6333 Tj +(6953 panic\("pipe"\);) 109.2129 Tj 0 -66.4535 Td -(6954 {) 26.2111 Tj +(6954 if\(fork1\(\) == 0\){) 113.5814 Tj 0 -75.9469 Td -(6955 struct execcmd *cmd;) 117.95 Tj +(6955 close\(1\);) 87.3703 Tj 0 -85.4403 Td -(6956 ) 21.8426 Tj +(6956 dup\(p[1]\);) 91.7388 Tj 0 -94.9336 Td -(6957 cmd = malloc\(sizeof\(*cmd\)\);) 148.529 Tj +(6957 close\(p[0]\);) 100.4758 Tj 0 -104.427 Td -(6958 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.267 Tj -0 -113.92 Td -(6959 cmd->type = EXEC;) 104.844 Tj -0 -123.414 Td -(6960 return \(struct cmd*\)cmd;) 135.424 Tj -0 -132.907 Td -(6961 }) 26.2111 Tj -0 -142.4 Td -(6962 ) 21.8426 Tj -0 -151.894 Td -(6963 struct cmd*) 69.8962 Tj -0 -161.387 Td -(6964 redircmd\(struct cmd *subcmd, char *file, char *efile, int\ - mode, int fd\)) 332.007 Tj -0 -170.88 Td -(6965 {) 26.2111 Tj -0 -180.374 Td -(6966 struct redircmd *cmd;) 122.318 Tj -0 -189.867 Td -(6967 ) 21.8426 Tj -0 -199.361 Td -(6968 cmd = malloc\(sizeof\(*cmd\)\);) 148.529 Tj -0 -208.854 Td -(6969 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.267 Tj -0 -218.347 Td -(6970 cmd->type = REDIR;) 109.213 Tj -0 -227.841 Td -(6971 cmd->cmd = subcmd;) 109.213 Tj +(6958 close\(p[1]\);) 100.4758 Tj +0 -113.9203 Td +(6959 runcmd\(pcmd->left\);) 131.0554 Tj +0 -123.4137 Td +(6960 }) 43.6851 Tj +0 -132.9071 Td +(6961 if\(fork1\(\) == 0\){) 113.5814 Tj +0 -142.4004 Td +(6962 close\(0\);) 87.3703 Tj +0 -151.8938 Td +(6963 dup\(p[0]\);) 91.7388 Tj +0 -161.3871 Td +(6964 close\(p[0]\);) 100.4758 Tj +0 -170.8805 Td +(6965 close\(p[1]\);) 100.4758 Tj +0 -180.3739 Td +(6966 runcmd\(pcmd->right\);) 135.4239 Tj +0 -189.8672 Td +(6967 }) 43.6851 Tj +0 -199.3606 Td +(6968 close\(p[0]\);) 91.7388 Tj +0 -208.8539 Td +(6969 close\(p[1]\);) 91.7388 Tj +0 -218.3473 Td +(6970 wait\(\);) 69.8962 Tj +0 -227.8407 Td +(6971 wait\(\);) 69.8962 Tj 0 -237.334 Td -(6972 cmd->file = file;) 104.844 Tj -0 -246.827 Td -(6973 cmd->efile = efile;) 113.581 Tj -0 -256.321 Td -(6974 cmd->mode = mode;) 104.844 Tj -0 -265.814 Td -(6975 cmd->fd = fd;) 87.3703 Tj -0 -275.307 Td -(6976 return \(struct cmd*\)cmd;) 135.424 Tj -0 -284.801 Td -(6977 }) 26.2111 Tj -0 -294.294 Td -(6978 ) 21.8426 Tj -0 -303.788 Td -(6979 struct cmd*) 69.8962 Tj -0 -313.281 Td -(6980 pipecmd\(struct cmd *left, struct cmd *right\)) 214.057 Tj -0 -322.774 Td -(6981 {) 26.2111 Tj -0 -332.268 Td -(6982 struct pipecmd *cmd;) 117.95 Tj +(6972 break;) 65.5277 Tj +0 -246.8274 Td +(6973 ) 21.8426 Tj +0 -256.3207 Td +(6974 case BACK:) 74.2647 Tj +0 -265.8141 Td +(6975 bcmd = \(struct backcmd*\)cmd;) 161.635 Tj +0 -275.3075 Td +(6976 if\(fork1\(\) == 0\)) 109.2129 Tj +0 -284.8008 Td +(6977 runcmd\(bcmd->cmd\);) 126.6869 Tj +0 -294.2942 Td +(6978 break;) 65.5277 Tj +0 -303.7875 Td +(6979 }) 34.9481 Tj +0 -313.2809 Td +(6980 exit\(\);) 61.1592 Tj +0 -322.7743 Td +(6981 }) 26.2111 Tj +0 -332.2676 Td +(6982 ) 21.8426 Tj 0 -341.761 Td -(6983 ) 21.8426 Tj -0 -351.254 Td -(6984 cmd = malloc\(sizeof\(*cmd\)\);) 148.529 Tj -0 -360.748 Td -(6985 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.267 Tj -0 -370.241 Td -(6986 cmd->type = PIPE;) 104.844 Tj -0 -379.734 Td -(6987 cmd->left = left;) 104.844 Tj -0 -389.228 Td -(6988 cmd->right = right;) 113.581 Tj -0 -398.721 Td -(6989 return \(struct cmd*\)cmd;) 135.424 Tj -0 -408.214 Td -(6990 }) 26.2111 Tj -0 -417.708 Td -(6991 ) 21.8426 Tj -0 -427.201 Td -(6992 ) 21.8426 Tj -0 -436.695 Td +(6983 int) 34.9481 Tj +0 -351.2543 Td +(6984 getcmd\(char *buf, int nbuf\)) 139.7925 Tj +0 -360.7477 Td +(6985 {) 26.2111 Tj +0 -370.2411 Td +(6986 printf\(2, "$ "\);) 100.4758 Tj +0 -379.7344 Td +(6987 memset\(buf, 0, nbuf\);) 122.3184 Tj +0 -389.2278 Td +(6988 gets\(buf, nbuf\);) 100.4758 Tj +0 -398.7211 Td +(6989 if\(buf[0] == 0\) // EOF) 126.6869 Tj +0 -408.2145 Td +(6990 return -1;) 83.0018 Tj +0 -417.7079 Td +(6991 return 0;) 69.8962 Tj +0 -427.2012 Td +(6992 }) 26.2111 Tj +0 -436.6946 Td (6993 ) 21.8426 Tj -0 -446.188 Td +0 -446.1879 Td (6994 ) 21.8426 Tj -0 -455.681 Td +0 -455.6813 Td (6995 ) 21.8426 Tj -0 -465.175 Td +0 -465.1747 Td (6996 ) 21.8426 Tj 0 -474.668 Td (6997 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (6998 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (6999 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 69) 34.9481 Tj Q Q @@ -22668,8 +22645,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -22684,111 +22660,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 6) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 4) 152.898 Tj 0 -28.4801 Td -(7000 struct cmd*) 69.8962 Tj +(7000 int) 34.9481 Tj 0 -37.9735 Td -(7001 listcmd\(struct cmd *left, struct cmd *right\)) 214.057 Tj +(7001 main\(void\)) 65.5277 Tj 0 -47.4668 Td (7002 {) 26.2111 Tj 0 -56.9602 Td -(7003 struct listcmd *cmd;) 117.95 Tj +(7003 static char buf[100];) 122.3184 Tj 0 -66.4535 Td -(7004 ) 21.8426 Tj +(7004 int fd;) 61.1592 Tj 0 -75.9469 Td -(7005 cmd = malloc\(sizeof\(*cmd\)\);) 148.529 Tj +(7005 ) 21.8426 Tj 0 -85.4403 Td -(7006 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.267 Tj +(7006 // Assumes three file descriptors open.) 200.9517 Tj 0 -94.9336 Td -(7007 cmd->type = LIST;) 104.844 Tj +(7007 while\(\(fd = open\("console", O_RDWR\)\) >= 0\){) 218.4257 Tj 0 -104.427 Td -(7008 cmd->left = left;) 104.844 Tj -0 -113.92 Td -(7009 cmd->right = right;) 113.581 Tj -0 -123.414 Td -(7010 return \(struct cmd*\)cmd;) 135.424 Tj -0 -132.907 Td -(7011 }) 26.2111 Tj -0 -142.4 Td -(7012 ) 21.8426 Tj -0 -151.894 Td -(7013 struct cmd*) 69.8962 Tj -0 -161.387 Td -(7014 backcmd\(struct cmd *subcmd\)) 139.792 Tj -0 -170.88 Td -(7015 {) 26.2111 Tj -0 -180.374 Td -(7016 struct backcmd *cmd;) 117.95 Tj -0 -189.867 Td -(7017 ) 21.8426 Tj -0 -199.361 Td -(7018 cmd = malloc\(sizeof\(*cmd\)\);) 148.529 Tj -0 -208.854 Td -(7019 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.267 Tj -0 -218.347 Td -(7020 cmd->type = BACK;) 104.844 Tj -0 -227.841 Td -(7021 cmd->cmd = subcmd;) 109.213 Tj +(7008 if\(fd >= 3\){) 91.7388 Tj +0 -113.9203 Td +(7009 close\(fd\);) 91.7388 Tj +0 -123.4137 Td +(7010 break;) 74.2647 Tj +0 -132.9071 Td +(7011 }) 43.6851 Tj +0 -142.4004 Td +(7012 }) 34.9481 Tj +0 -151.8938 Td +(7013 ) 21.8426 Tj +0 -161.3871 Td +(7014 // Read and run input commands.) 166.0035 Tj +0 -170.8805 Td +(7015 while\(getcmd\(buf, sizeof\(buf\)\) >= 0\){) 192.2146 Tj +0 -180.3739 Td +(7016 if\(buf[0] == 'c' && buf[1] == 'd' && buf[2] == ' '\){) 266.4794 Tj +0 -189.8672 Td +(7017 // Clumsy but will have to do for now.) 214.0572 Tj +0 -199.3606 Td +(7018 // Chdir has no effect on the parent if run in the c\ +hild.) 297.059 Tj +0 -208.8539 Td +(7019 buf[strlen\(buf\)-1] = 0; // chop \\n) 200.9517 Tj +0 -218.3473 Td +(7020 if\(chdir\(buf+3\) < 0\)) 135.4239 Tj +0 -227.8407 Td +(7021 printf\(2, "cannot cd %s\\n", buf+3\);) 209.6887 Tj 0 -237.334 Td -(7022 return \(struct cmd*\)cmd;) 135.424 Tj -0 -246.827 Td -(7023 }) 26.2111 Tj -0 -256.321 Td -(7024 ) 21.8426 Tj -0 -265.814 Td -(7025 ) 21.8426 Tj -0 -275.307 Td -(7026 ) 21.8426 Tj -0 -284.801 Td -(7027 ) 21.8426 Tj -0 -294.294 Td -(7028 ) 21.8426 Tj -0 -303.788 Td -(7029 ) 21.8426 Tj -0 -313.281 Td +(7022 continue;) 87.3703 Tj +0 -246.8274 Td +(7023 }) 43.6851 Tj +0 -256.3207 Td +(7024 if\(fork1\(\) == 0\)) 109.2129 Tj +0 -265.8141 Td +(7025 runcmd\(parsecmd\(buf\)\);) 144.161 Tj +0 -275.3075 Td +(7026 wait\(\);) 69.8962 Tj +0 -284.8008 Td +(7027 }) 34.9481 Tj +0 -294.2942 Td +(7028 exit\(\);) 61.1592 Tj +0 -303.7875 Td +(7029 }) 26.2111 Tj +0 -313.2809 Td (7030 ) 21.8426 Tj -0 -322.774 Td -(7031 ) 21.8426 Tj -0 -332.268 Td -(7032 ) 21.8426 Tj +0 -322.7743 Td +(7031 void) 39.3166 Tj +0 -332.2676 Td +(7032 panic\(char *s\)) 83.0018 Tj 0 -341.761 Td -(7033 ) 21.8426 Tj -0 -351.254 Td -(7034 ) 21.8426 Tj -0 -360.748 Td -(7035 ) 21.8426 Tj -0 -370.241 Td -(7036 ) 21.8426 Tj -0 -379.734 Td +(7033 {) 26.2111 Tj +0 -351.2543 Td +(7034 printf\(2, "%s\\n", s\);) 122.3184 Tj +0 -360.7477 Td +(7035 exit\(\);) 61.1592 Tj +0 -370.2411 Td +(7036 }) 26.2111 Tj +0 -379.7344 Td (7037 ) 21.8426 Tj -0 -389.228 Td -(7038 ) 21.8426 Tj -0 -398.721 Td -(7039 ) 21.8426 Tj -0 -408.214 Td -(7040 ) 21.8426 Tj -0 -417.708 Td -(7041 ) 21.8426 Tj -0 -427.201 Td +0 -389.2278 Td +(7038 int) 34.9481 Tj +0 -398.7211 Td +(7039 fork1\(void\)) 69.8962 Tj +0 -408.2145 Td +(7040 {) 26.2111 Tj +0 -417.7079 Td +(7041 int pid;) 65.5277 Tj +0 -427.2012 Td (7042 ) 21.8426 Tj -0 -436.695 Td -(7043 ) 21.8426 Tj -0 -446.188 Td -(7044 ) 21.8426 Tj -0 -455.681 Td -(7045 ) 21.8426 Tj -0 -465.175 Td -(7046 ) 21.8426 Tj +0 -436.6946 Td +(7043 pid = fork\(\);) 87.3703 Tj +0 -446.1879 Td +(7044 if\(pid == -1\)) 87.3703 Tj +0 -455.6813 Td +(7045 panic\("fork"\);) 100.4758 Tj +0 -465.1747 Td +(7046 return pid;) 78.6333 Tj 0 -474.668 Td -(7047 ) 21.8426 Tj -0 -484.161 Td +(7047 }) 26.2111 Tj +0 -484.1614 Td (7048 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (7049 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 70) 34.9481 Tj Q Q @@ -22803,112 +22780,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 7) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 5) 152.898 Tj 0 -28.4801 Td -(7050 // Parsing) 65.5277 Tj +(7050 // Constructors) 87.3703 Tj 0 -37.9735 Td (7051 ) 21.8426 Tj 0 -47.4668 Td -(7052 char whitespace[] = " \\t\\r\\n\\v";) 161.635 Tj +(7052 struct cmd*) 69.8962 Tj 0 -56.9602 Td -(7053 char symbols[] = "<|>&;\(\)";) 139.792 Tj +(7053 execcmd\(void\)) 78.6333 Tj 0 -66.4535 Td -(7054 ) 21.8426 Tj +(7054 {) 26.2111 Tj 0 -75.9469 Td -(7055 int) 34.9481 Tj +(7055 struct execcmd *cmd;) 117.9499 Tj 0 -85.4403 Td -(7056 gettoken\(char **ps, char *es, char **q, char **eq\)) 240.268 Tj +(7056 ) 21.8426 Tj 0 -94.9336 Td -(7057 {) 26.2111 Tj +(7057 cmd = malloc\(sizeof\(*cmd\)\);) 148.5295 Tj 0 -104.427 Td -(7058 char *s;) 65.5277 Tj -0 -113.92 Td -(7059 int ret;) 65.5277 Tj -0 -123.414 Td -(7060 ) 21.8426 Tj -0 -132.907 Td -(7061 s = *ps;) 65.5277 Tj -0 -142.4 Td -(7062 while\(s < es && strchr\(whitespace, *s\)\)) 200.952 Tj -0 -151.894 Td -(7063 s++;) 56.7907 Tj -0 -161.387 Td -(7064 if\(q\)) 52.4222 Tj -0 -170.88 Td -(7065 *q = s;) 69.8962 Tj -0 -180.374 Td -(7066 ret = *s;) 69.8962 Tj -0 -189.867 Td -(7067 switch\(*s\){) 78.6333 Tj -0 -199.361 Td -(7068 case 0:) 61.1592 Tj -0 -208.854 Td -(7069 break;) 65.5277 Tj -0 -218.347 Td -(7070 case '|':) 69.8962 Tj -0 -227.841 Td -(7071 case '\(':) 69.8962 Tj +(7058 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.2665 Tj +0 -113.9203 Td +(7059 cmd->type = EXEC;) 104.8443 Tj +0 -123.4137 Td +(7060 return \(struct cmd*\)cmd;) 135.4239 Tj +0 -132.9071 Td +(7061 }) 26.2111 Tj +0 -142.4004 Td +(7062 ) 21.8426 Tj +0 -151.8938 Td +(7063 struct cmd*) 69.8962 Tj +0 -161.3871 Td +(7064 redircmd\(struct cmd *subcmd, char *file, char *efile, int\ + mode, int fd\)) 332.0071 Tj +0 -170.8805 Td +(7065 {) 26.2111 Tj +0 -180.3739 Td +(7066 struct redircmd *cmd;) 122.3184 Tj +0 -189.8672 Td +(7067 ) 21.8426 Tj +0 -199.3606 Td +(7068 cmd = malloc\(sizeof\(*cmd\)\);) 148.5295 Tj +0 -208.8539 Td +(7069 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.2665 Tj +0 -218.3473 Td +(7070 cmd->type = REDIR;) 109.2129 Tj +0 -227.8407 Td +(7071 cmd->cmd = subcmd;) 109.2129 Tj 0 -237.334 Td -(7072 case '\)':) 69.8962 Tj -0 -246.827 Td -(7073 case ';':) 69.8962 Tj -0 -256.321 Td -(7074 case '&':) 69.8962 Tj -0 -265.814 Td -(7075 case '<':) 69.8962 Tj -0 -275.307 Td -(7076 s++;) 56.7907 Tj -0 -284.801 Td -(7077 break;) 65.5277 Tj -0 -294.294 Td -(7078 case '>':) 69.8962 Tj -0 -303.788 Td -(7079 s++;) 56.7907 Tj -0 -313.281 Td -(7080 if\(*s == '>'\){) 100.476 Tj -0 -322.774 Td -(7081 ret = '+';) 91.7388 Tj -0 -332.268 Td -(7082 s++;) 65.5277 Tj +(7072 cmd->file = file;) 104.8443 Tj +0 -246.8274 Td +(7073 cmd->efile = efile;) 113.5814 Tj +0 -256.3207 Td +(7074 cmd->mode = mode;) 104.8443 Tj +0 -265.8141 Td +(7075 cmd->fd = fd;) 87.3703 Tj +0 -275.3075 Td +(7076 return \(struct cmd*\)cmd;) 135.4239 Tj +0 -284.8008 Td +(7077 }) 26.2111 Tj +0 -294.2942 Td +(7078 ) 21.8426 Tj +0 -303.7875 Td +(7079 struct cmd*) 69.8962 Tj +0 -313.2809 Td +(7080 pipecmd\(struct cmd *left, struct cmd *right\)) 214.0572 Tj +0 -322.7743 Td +(7081 {) 26.2111 Tj +0 -332.2676 Td +(7082 struct pipecmd *cmd;) 117.9499 Tj 0 -341.761 Td -(7083 }) 43.6851 Tj -0 -351.254 Td -(7084 break;) 65.5277 Tj -0 -360.748 Td -(7085 default:) 65.5277 Tj -0 -370.241 Td -(7086 ret = 'a';) 83.0018 Tj -0 -379.734 Td -(7087 while\(s < es && !strchr\(whitespace, *s\) && !strchr\(\ -symbols, *s\)\)) 318.902 Tj -0 -389.228 Td -(7088 s++;) 65.5277 Tj -0 -398.721 Td -(7089 break;) 65.5277 Tj -0 -408.214 Td -(7090 }) 34.9481 Tj -0 -417.708 Td -(7091 if\(eq\)) 56.7907 Tj -0 -427.201 Td -(7092 *eq = s;) 74.2647 Tj -0 -436.695 Td +(7083 ) 21.8426 Tj +0 -351.2543 Td +(7084 cmd = malloc\(sizeof\(*cmd\)\);) 148.5295 Tj +0 -360.7477 Td +(7085 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.2665 Tj +0 -370.2411 Td +(7086 cmd->type = PIPE;) 104.8443 Tj +0 -379.7344 Td +(7087 cmd->left = left;) 104.8443 Tj +0 -389.2278 Td +(7088 cmd->right = right;) 113.5814 Tj +0 -398.7211 Td +(7089 return \(struct cmd*\)cmd;) 135.4239 Tj +0 -408.2145 Td +(7090 }) 26.2111 Tj +0 -417.7079 Td +(7091 ) 21.8426 Tj +0 -427.2012 Td +(7092 ) 21.8426 Tj +0 -436.6946 Td (7093 ) 21.8426 Tj -0 -446.188 Td -(7094 while\(s < es && strchr\(whitespace, *s\)\)) 200.952 Tj -0 -455.681 Td -(7095 s++;) 56.7907 Tj -0 -465.175 Td -(7096 *ps = s;) 65.5277 Tj +0 -446.1879 Td +(7094 ) 21.8426 Tj +0 -455.6813 Td +(7095 ) 21.8426 Tj +0 -465.1747 Td +(7096 ) 21.8426 Tj 0 -474.668 Td -(7097 return ret;) 78.6333 Tj -0 -484.161 Td -(7098 }) 26.2111 Tj -0 -493.655 Td +(7097 ) 21.8426 Tj +0 -484.1614 Td +(7098 ) 21.8426 Tj +0 -493.6547 Td (7099 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 70) 34.9481 Tj Q Q @@ -22937,8 +22914,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -22953,111 +22929,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 8) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 6) 152.898 Tj 0 -28.4801 Td -(7100 int) 34.9481 Tj +(7100 struct cmd*) 69.8962 Tj 0 -37.9735 Td -(7101 peek\(char **ps, char *es, char *toks\)) 183.478 Tj +(7101 listcmd\(struct cmd *left, struct cmd *right\)) 214.0572 Tj 0 -47.4668 Td (7102 {) 26.2111 Tj 0 -56.9602 Td -(7103 char *s;) 65.5277 Tj +(7103 struct listcmd *cmd;) 117.9499 Tj 0 -66.4535 Td (7104 ) 21.8426 Tj 0 -75.9469 Td -(7105 s = *ps;) 65.5277 Tj +(7105 cmd = malloc\(sizeof\(*cmd\)\);) 148.5295 Tj 0 -85.4403 Td -(7106 while\(s < es && strchr\(whitespace, *s\)\)) 200.952 Tj +(7106 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.2665 Tj 0 -94.9336 Td -(7107 s++;) 56.7907 Tj +(7107 cmd->type = LIST;) 104.8443 Tj 0 -104.427 Td -(7108 *ps = s;) 65.5277 Tj -0 -113.92 Td -(7109 return *s && strchr\(toks, *s\);) 161.635 Tj -0 -123.414 Td -(7110 }) 26.2111 Tj -0 -132.907 Td -(7111 ) 21.8426 Tj -0 -142.4 Td -(7112 struct cmd *parseline\(char**, char*\);) 183.478 Tj -0 -151.894 Td -(7113 struct cmd *parsepipe\(char**, char*\);) 183.478 Tj -0 -161.387 Td -(7114 struct cmd *parseexec\(char**, char*\);) 183.478 Tj -0 -170.88 Td -(7115 struct cmd *nulterminate\(struct cmd*\);) 187.846 Tj -0 -180.374 Td -(7116 ) 21.8426 Tj -0 -189.867 Td -(7117 struct cmd*) 69.8962 Tj -0 -199.361 Td -(7118 parsecmd\(char *s\)) 96.1073 Tj -0 -208.854 Td -(7119 {) 26.2111 Tj -0 -218.347 Td -(7120 char *es;) 69.8962 Tj -0 -227.841 Td -(7121 struct cmd *cmd;) 100.476 Tj +(7108 cmd->left = left;) 104.8443 Tj +0 -113.9203 Td +(7109 cmd->right = right;) 113.5814 Tj +0 -123.4137 Td +(7110 return \(struct cmd*\)cmd;) 135.4239 Tj +0 -132.9071 Td +(7111 }) 26.2111 Tj +0 -142.4004 Td +(7112 ) 21.8426 Tj +0 -151.8938 Td +(7113 struct cmd*) 69.8962 Tj +0 -161.3871 Td +(7114 backcmd\(struct cmd *subcmd\)) 139.7925 Tj +0 -170.8805 Td +(7115 {) 26.2111 Tj +0 -180.3739 Td +(7116 struct backcmd *cmd;) 117.9499 Tj +0 -189.8672 Td +(7117 ) 21.8426 Tj +0 -199.3606 Td +(7118 cmd = malloc\(sizeof\(*cmd\)\);) 148.5295 Tj +0 -208.8539 Td +(7119 memset\(cmd, 0, sizeof\(*cmd\)\);) 157.2665 Tj +0 -218.3473 Td +(7120 cmd->type = BACK;) 104.8443 Tj +0 -227.8407 Td +(7121 cmd->cmd = subcmd;) 109.2129 Tj 0 -237.334 Td -(7122 ) 21.8426 Tj -0 -246.827 Td -(7123 es = s + strlen\(s\);) 113.581 Tj -0 -256.321 Td -(7124 cmd = parseline\(&s, es\);) 135.424 Tj -0 -265.814 Td -(7125 peek\(&s, es, ""\);) 104.844 Tj -0 -275.307 Td -(7126 if\(s != es\){) 83.0018 Tj -0 -284.801 Td -(7127 printf\(2, "leftovers: %s\\n", s\);) 179.109 Tj -0 -294.294 Td -(7128 panic\("syntax"\);) 109.213 Tj -0 -303.788 Td -(7129 }) 34.9481 Tj -0 -313.281 Td -(7130 nulterminate\(cmd\);) 109.213 Tj -0 -322.774 Td -(7131 return cmd;) 78.6333 Tj -0 -332.268 Td -(7132 }) 26.2111 Tj +(7122 return \(struct cmd*\)cmd;) 135.4239 Tj +0 -246.8274 Td +(7123 }) 26.2111 Tj +0 -256.3207 Td +(7124 ) 21.8426 Tj +0 -265.8141 Td +(7125 ) 21.8426 Tj +0 -275.3075 Td +(7126 ) 21.8426 Tj +0 -284.8008 Td +(7127 ) 21.8426 Tj +0 -294.2942 Td +(7128 ) 21.8426 Tj +0 -303.7875 Td +(7129 ) 21.8426 Tj +0 -313.2809 Td +(7130 ) 21.8426 Tj +0 -322.7743 Td +(7131 ) 21.8426 Tj +0 -332.2676 Td +(7132 ) 21.8426 Tj 0 -341.761 Td (7133 ) 21.8426 Tj -0 -351.254 Td -(7134 struct cmd*) 69.8962 Tj -0 -360.748 Td -(7135 parseline\(char **ps, char *es\)) 152.898 Tj -0 -370.241 Td -(7136 {) 26.2111 Tj -0 -379.734 Td -(7137 struct cmd *cmd;) 100.476 Tj -0 -389.228 Td +0 -351.2543 Td +(7134 ) 21.8426 Tj +0 -360.7477 Td +(7135 ) 21.8426 Tj +0 -370.2411 Td +(7136 ) 21.8426 Tj +0 -379.7344 Td +(7137 ) 21.8426 Tj +0 -389.2278 Td (7138 ) 21.8426 Tj -0 -398.721 Td -(7139 cmd = parsepipe\(ps, es\);) 135.424 Tj -0 -408.214 Td -(7140 while\(peek\(ps, es, "&"\)\){) 139.792 Tj -0 -417.708 Td -(7141 gettoken\(ps, es, 0, 0\);) 139.792 Tj -0 -427.201 Td -(7142 cmd = backcmd\(cmd\);) 122.318 Tj -0 -436.695 Td -(7143 }) 34.9481 Tj -0 -446.188 Td -(7144 if\(peek\(ps, es, ";"\)\){) 126.687 Tj -0 -455.681 Td -(7145 gettoken\(ps, es, 0, 0\);) 139.792 Tj -0 -465.175 Td -(7146 cmd = listcmd\(cmd, parseline\(ps, es\)\);) 205.32 Tj +0 -398.7211 Td +(7139 ) 21.8426 Tj +0 -408.2145 Td +(7140 ) 21.8426 Tj +0 -417.7079 Td +(7141 ) 21.8426 Tj +0 -427.2012 Td +(7142 ) 21.8426 Tj +0 -436.6946 Td +(7143 ) 21.8426 Tj +0 -446.1879 Td +(7144 ) 21.8426 Tj +0 -455.6813 Td +(7145 ) 21.8426 Tj +0 -465.1747 Td +(7146 ) 21.8426 Tj 0 -474.668 Td -(7147 }) 34.9481 Tj -0 -484.161 Td -(7148 return cmd;) 78.6333 Tj -0 -493.655 Td -(7149 }) 26.2111 Tj -0 -522.135 Td +(7147 ) 21.8426 Tj +0 -484.1614 Td +(7148 ) 21.8426 Tj +0 -493.6547 Td +(7149 ) 21.8426 Tj +0 -522.1348 Td (Sheet 71) 34.9481 Tj Q Q @@ -23072,111 +23048,112 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 9) 152.898 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 7) 152.898 Tj 0 -28.4801 Td -(7150 struct cmd*) 69.8962 Tj +(7150 // Parsing) 65.5277 Tj 0 -37.9735 Td -(7151 parsepipe\(char **ps, char *es\)) 152.898 Tj +(7151 ) 21.8426 Tj 0 -47.4668 Td -(7152 {) 26.2111 Tj +(7152 char whitespace[] = " \\t\\r\\n\\v";) 161.635 Tj 0 -56.9602 Td -(7153 struct cmd *cmd;) 100.476 Tj +(7153 char symbols[] = "<|>&;\(\)";) 139.7925 Tj 0 -66.4535 Td (7154 ) 21.8426 Tj 0 -75.9469 Td -(7155 cmd = parseexec\(ps, es\);) 135.424 Tj +(7155 int) 34.9481 Tj 0 -85.4403 Td -(7156 if\(peek\(ps, es, "|"\)\){) 126.687 Tj +(7156 gettoken\(char **ps, char *es, char **q, char **eq\)) 240.2683 Tj 0 -94.9336 Td -(7157 gettoken\(ps, es, 0, 0\);) 139.792 Tj +(7157 {) 26.2111 Tj 0 -104.427 Td -(7158 cmd = pipecmd\(cmd, parsepipe\(ps, es\)\);) 205.32 Tj -0 -113.92 Td -(7159 }) 34.9481 Tj -0 -123.414 Td -(7160 return cmd;) 78.6333 Tj -0 -132.907 Td -(7161 }) 26.2111 Tj -0 -142.4 Td -(7162 ) 21.8426 Tj -0 -151.894 Td -(7163 struct cmd*) 69.8962 Tj -0 -161.387 Td -(7164 parseredirs\(struct cmd *cmd, char **ps, char *es\)) 235.9 Tj -0 -170.88 Td -(7165 {) 26.2111 Tj -0 -180.374 Td -(7166 int tok;) 65.5277 Tj -0 -189.867 Td -(7167 char *q, *eq;) 87.3703 Tj -0 -199.361 Td -(7168 ) 21.8426 Tj -0 -208.854 Td -(7169 while\(peek\(ps, es, "<>"\)\){) 144.161 Tj -0 -218.347 Td -(7170 tok = gettoken\(ps, es, 0, 0\);) 166.004 Tj -0 -227.841 Td -(7171 if\(gettoken\(ps, es, &q, &eq\) != 'a'\)) 196.583 Tj +(7158 char *s;) 65.5277 Tj +0 -113.9203 Td +(7159 int ret;) 65.5277 Tj +0 -123.4137 Td +(7160 ) 21.8426 Tj +0 -132.9071 Td +(7161 s = *ps;) 65.5277 Tj +0 -142.4004 Td +(7162 while\(s < es && strchr\(whitespace, *s\)\)) 200.9517 Tj +0 -151.8938 Td +(7163 s++;) 56.7907 Tj +0 -161.3871 Td +(7164 if\(q\)) 52.4222 Tj +0 -170.8805 Td +(7165 *q = s;) 69.8962 Tj +0 -180.3739 Td +(7166 ret = *s;) 69.8962 Tj +0 -189.8672 Td +(7167 switch\(*s\){) 78.6333 Tj +0 -199.3606 Td +(7168 case 0:) 61.1592 Tj +0 -208.8539 Td +(7169 break;) 65.5277 Tj +0 -218.3473 Td +(7170 case '|':) 69.8962 Tj +0 -227.8407 Td +(7171 case '\(':) 69.8962 Tj 0 -237.334 Td -(7172 panic\("missing file for redirection"\);) 214.057 Tj -0 -246.827 Td -(7173 switch\(tok\){) 91.7388 Tj -0 -256.321 Td -(7174 case '<':) 78.6333 Tj -0 -265.814 Td -(7175 cmd = redircmd\(cmd, q, eq, O_RDONLY, 0\);) 222.794 Tj -0 -275.307 Td -(7176 break;) 74.2647 Tj -0 -284.801 Td -(7177 case '>':) 78.6333 Tj -0 -294.294 Td -(7178 cmd = redircmd\(cmd, q, eq, O_WRONLY|O_CREATE, 1\);) 262.111 Tj -0 -303.788 Td -(7179 break;) 74.2647 Tj -0 -313.281 Td -(7180 case '+': // >>) 109.213 Tj -0 -322.774 Td -(7181 cmd = redircmd\(cmd, q, eq, O_WRONLY|O_CREATE, 1\);) 262.111 Tj -0 -332.268 Td -(7182 break;) 74.2647 Tj +(7172 case '\)':) 69.8962 Tj +0 -246.8274 Td +(7173 case ';':) 69.8962 Tj +0 -256.3207 Td +(7174 case '&':) 69.8962 Tj +0 -265.8141 Td +(7175 case '<':) 69.8962 Tj +0 -275.3075 Td +(7176 s++;) 56.7907 Tj +0 -284.8008 Td +(7177 break;) 65.5277 Tj +0 -294.2942 Td +(7178 case '>':) 69.8962 Tj +0 -303.7875 Td +(7179 s++;) 56.7907 Tj +0 -313.2809 Td +(7180 if\(*s == '>'\){) 100.4758 Tj +0 -322.7743 Td +(7181 ret = '+';) 91.7388 Tj +0 -332.2676 Td +(7182 s++;) 65.5277 Tj 0 -341.761 Td (7183 }) 43.6851 Tj -0 -351.254 Td -(7184 }) 34.9481 Tj -0 -360.748 Td -(7185 return cmd;) 78.6333 Tj -0 -370.241 Td -(7186 }) 26.2111 Tj -0 -379.734 Td -(7187 ) 21.8426 Tj -0 -389.228 Td -(7188 ) 21.8426 Tj -0 -398.721 Td -(7189 ) 21.8426 Tj -0 -408.214 Td -(7190 ) 21.8426 Tj -0 -417.708 Td -(7191 ) 21.8426 Tj -0 -427.201 Td -(7192 ) 21.8426 Tj -0 -436.695 Td +0 -351.2543 Td +(7184 break;) 65.5277 Tj +0 -360.7477 Td +(7185 default:) 65.5277 Tj +0 -370.2411 Td +(7186 ret = 'a';) 83.0018 Tj +0 -379.7344 Td +(7187 while\(s < es && !strchr\(whitespace, *s\) && !strchr\(\ +symbols, *s\)\)) 318.9016 Tj +0 -389.2278 Td +(7188 s++;) 65.5277 Tj +0 -398.7211 Td +(7189 break;) 65.5277 Tj +0 -408.2145 Td +(7190 }) 34.9481 Tj +0 -417.7079 Td +(7191 if\(eq\)) 56.7907 Tj +0 -427.2012 Td +(7192 *eq = s;) 74.2647 Tj +0 -436.6946 Td (7193 ) 21.8426 Tj -0 -446.188 Td -(7194 ) 21.8426 Tj -0 -455.681 Td -(7195 ) 21.8426 Tj -0 -465.175 Td -(7196 ) 21.8426 Tj +0 -446.1879 Td +(7194 while\(s < es && strchr\(whitespace, *s\)\)) 200.9517 Tj +0 -455.6813 Td +(7195 s++;) 56.7907 Tj +0 -465.1747 Td +(7196 *ps = s;) 65.5277 Tj 0 -474.668 Td -(7197 ) 21.8426 Tj -0 -484.161 Td -(7198 ) 21.8426 Tj -0 -493.655 Td +(7197 return ret;) 78.6333 Tj +0 -484.1614 Td +(7198 }) 26.2111 Tj +0 -493.6547 Td (7199 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 71) 34.9481 Tj Q Q @@ -23205,8 +23182,7 @@ pdfStartPage [0] SC false op false OP -0 0 612 792 re -W +{} settransfer q q [0.1 0 0 0.1 0 0] cm @@ -23221,111 +23197,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 738.864] Tm +[0 -0.9679 1 0 564.72 738.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 10) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 8) 152.898 Tj 0 -28.4801 Td -(7200 struct cmd*) 69.8962 Tj +(7200 int) 34.9481 Tj 0 -37.9735 Td -(7201 parseblock\(char **ps, char *es\)) 157.267 Tj +(7201 peek\(char **ps, char *es, char *toks\)) 183.4776 Tj 0 -47.4668 Td (7202 {) 26.2111 Tj 0 -56.9602 Td -(7203 struct cmd *cmd;) 100.476 Tj +(7203 char *s;) 65.5277 Tj 0 -66.4535 Td (7204 ) 21.8426 Tj 0 -75.9469 Td -(7205 if\(!peek\(ps, es, "\("\)\)) 126.687 Tj +(7205 s = *ps;) 65.5277 Tj 0 -85.4403 Td -(7206 panic\("parseblock"\);) 126.687 Tj +(7206 while\(s < es && strchr\(whitespace, *s\)\)) 200.9517 Tj 0 -94.9336 Td -(7207 gettoken\(ps, es, 0, 0\);) 131.055 Tj +(7207 s++;) 56.7907 Tj 0 -104.427 Td -(7208 cmd = parseline\(ps, es\);) 135.424 Tj -0 -113.92 Td -(7209 if\(!peek\(ps, es, "\)"\)\)) 126.687 Tj -0 -123.414 Td -(7210 panic\("syntax - missing \)"\);) 161.635 Tj -0 -132.907 Td -(7211 gettoken\(ps, es, 0, 0\);) 131.055 Tj -0 -142.4 Td -(7212 cmd = parseredirs\(cmd, ps, es\);) 166.004 Tj -0 -151.894 Td -(7213 return cmd;) 78.6333 Tj -0 -161.387 Td -(7214 }) 26.2111 Tj -0 -170.88 Td -(7215 ) 21.8426 Tj -0 -180.374 Td -(7216 struct cmd*) 69.8962 Tj -0 -189.867 Td -(7217 parseexec\(char **ps, char *es\)) 152.898 Tj -0 -199.361 Td -(7218 {) 26.2111 Tj -0 -208.854 Td -(7219 char *q, *eq;) 87.3703 Tj -0 -218.347 Td -(7220 int tok, argc;) 91.7388 Tj -0 -227.841 Td -(7221 struct execcmd *cmd;) 117.95 Tj +(7208 *ps = s;) 65.5277 Tj +0 -113.9203 Td +(7209 return *s && strchr\(toks, *s\);) 161.635 Tj +0 -123.4137 Td +(7210 }) 26.2111 Tj +0 -132.9071 Td +(7211 ) 21.8426 Tj +0 -142.4004 Td +(7212 struct cmd *parseline\(char**, char*\);) 183.4776 Tj +0 -151.8938 Td +(7213 struct cmd *parsepipe\(char**, char*\);) 183.4776 Tj +0 -161.3871 Td +(7214 struct cmd *parseexec\(char**, char*\);) 183.4776 Tj +0 -170.8805 Td +(7215 struct cmd *nulterminate\(struct cmd*\);) 187.8461 Tj +0 -180.3739 Td +(7216 ) 21.8426 Tj +0 -189.8672 Td +(7217 struct cmd*) 69.8962 Tj +0 -199.3606 Td +(7218 parsecmd\(char *s\)) 96.1073 Tj +0 -208.8539 Td +(7219 {) 26.2111 Tj +0 -218.3473 Td +(7220 char *es;) 69.8962 Tj +0 -227.8407 Td +(7221 struct cmd *cmd;) 100.4758 Tj 0 -237.334 Td -(7222 struct cmd *ret;) 100.476 Tj -0 -246.827 Td -(7223 ) 21.8426 Tj -0 -256.321 Td -(7224 if\(peek\(ps, es, "\("\)\)) 122.318 Tj -0 -265.814 Td -(7225 return parseblock\(ps, es\);) 152.898 Tj -0 -275.307 Td -(7226 ) 21.8426 Tj -0 -284.801 Td -(7227 ret = execcmd\(\);) 100.476 Tj -0 -294.294 Td -(7228 cmd = \(struct execcmd*\)ret;) 148.529 Tj -0 -303.788 Td -(7229 ) 21.8426 Tj -0 -313.281 Td -(7230 argc = 0;) 69.8962 Tj -0 -322.774 Td -(7231 ret = parseredirs\(ret, ps, es\);) 166.004 Tj -0 -332.268 Td -(7232 while\(!peek\(ps, es, "|\)&;"\)\){) 157.267 Tj +(7222 ) 21.8426 Tj +0 -246.8274 Td +(7223 es = s + strlen\(s\);) 113.5814 Tj +0 -256.3207 Td +(7224 cmd = parseline\(&s, es\);) 135.4239 Tj +0 -265.8141 Td +(7225 peek\(&s, es, ""\);) 104.8443 Tj +0 -275.3075 Td +(7226 if\(s != es\){) 83.0018 Tj +0 -284.8008 Td +(7227 printf\(2, "leftovers: %s\\n", s\);) 179.1091 Tj +0 -294.2942 Td +(7228 panic\("syntax"\);) 109.2129 Tj +0 -303.7875 Td +(7229 }) 34.9481 Tj +0 -313.2809 Td +(7230 nulterminate\(cmd\);) 109.2129 Tj +0 -322.7743 Td +(7231 return cmd;) 78.6333 Tj +0 -332.2676 Td +(7232 }) 26.2111 Tj 0 -341.761 Td -(7233 if\(\(tok=gettoken\(ps, es, &q, &eq\)\) == 0\)) 214.057 Tj -0 -351.254 Td -(7234 break;) 74.2647 Tj -0 -360.748 Td -(7235 if\(tok != 'a'\)) 100.476 Tj -0 -370.241 Td -(7236 panic\("syntax"\);) 117.95 Tj -0 -379.734 Td -(7237 cmd->argv[argc] = q;) 126.687 Tj -0 -389.228 Td -(7238 cmd->eargv[argc] = eq;) 135.424 Tj -0 -398.721 Td -(7239 argc++;) 69.8962 Tj -0 -408.214 Td -(7240 if\(argc >= MAXARGS\)) 122.318 Tj -0 -417.708 Td -(7241 panic\("too many args"\);) 148.529 Tj -0 -427.201 Td -(7242 ret = parseredirs\(ret, ps, es\);) 174.741 Tj -0 -436.695 Td +(7233 ) 21.8426 Tj +0 -351.2543 Td +(7234 struct cmd*) 69.8962 Tj +0 -360.7477 Td +(7235 parseline\(char **ps, char *es\)) 152.898 Tj +0 -370.2411 Td +(7236 {) 26.2111 Tj +0 -379.7344 Td +(7237 struct cmd *cmd;) 100.4758 Tj +0 -389.2278 Td +(7238 ) 21.8426 Tj +0 -398.7211 Td +(7239 cmd = parsepipe\(ps, es\);) 135.4239 Tj +0 -408.2145 Td +(7240 while\(peek\(ps, es, "&"\)\){) 139.7925 Tj +0 -417.7079 Td +(7241 gettoken\(ps, es, 0, 0\);) 139.7925 Tj +0 -427.2012 Td +(7242 cmd = backcmd\(cmd\);) 122.3184 Tj +0 -436.6946 Td (7243 }) 34.9481 Tj -0 -446.188 Td -(7244 cmd->argv[argc] = 0;) 117.95 Tj -0 -455.681 Td -(7245 cmd->eargv[argc] = 0;) 122.318 Tj -0 -465.175 Td -(7246 return ret;) 78.6333 Tj +0 -446.1879 Td +(7244 if\(peek\(ps, es, ";"\)\){) 126.6869 Tj +0 -455.6813 Td +(7245 gettoken\(ps, es, 0, 0\);) 139.7925 Tj +0 -465.1747 Td +(7246 cmd = listcmd\(cmd, parseline\(ps, es\)\);) 205.3202 Tj 0 -474.668 Td -(7247 }) 26.2111 Tj -0 -484.161 Td -(7248 ) 21.8426 Tj -0 -493.655 Td -(7249 ) 21.8426 Tj -0 -522.135 Td +(7247 }) 34.9481 Tj +0 -484.1614 Td +(7248 return cmd;) 78.6333 Tj +0 -493.6547 Td +(7249 }) 26.2111 Tj +0 -522.1348 Td (Sheet 72) 34.9481 Tj Q Q @@ -23340,111 +23316,111 @@ q [10 0 0 10 0 0] cm [1 0 0 1 0 0] Tm 0 0 Td -[0 -0.967854 1 0 564.72 392.864] Tm +[0 -0.9679 1 0 564.72 392.865] Tm 0 0 Td -/F9_0 8.70222 Tf -(Aug 30 10:08 2007 xv6/sh.c Page 11) 157.267 Tj +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 9) 152.898 Tj 0 -28.4801 Td -(7250 // NUL-terminate all the counted strings.) 200.952 Tj +(7250 struct cmd*) 69.8962 Tj 0 -37.9735 Td -(7251 struct cmd*) 69.8962 Tj +(7251 parsepipe\(char **ps, char *es\)) 152.898 Tj 0 -47.4668 Td -(7252 nulterminate\(struct cmd *cmd\)) 148.529 Tj +(7252 {) 26.2111 Tj 0 -56.9602 Td -(7253 {) 26.2111 Tj +(7253 struct cmd *cmd;) 100.4758 Tj 0 -66.4535 Td -(7254 int i;) 56.7907 Tj +(7254 ) 21.8426 Tj 0 -75.9469 Td -(7255 struct backcmd *bcmd;) 122.318 Tj +(7255 cmd = parseexec\(ps, es\);) 135.4239 Tj 0 -85.4403 Td -(7256 struct execcmd *ecmd;) 122.318 Tj +(7256 if\(peek\(ps, es, "|"\)\){) 126.6869 Tj 0 -94.9336 Td -(7257 struct listcmd *lcmd;) 122.318 Tj +(7257 gettoken\(ps, es, 0, 0\);) 139.7925 Tj 0 -104.427 Td -(7258 struct pipecmd *pcmd;) 122.318 Tj -0 -113.92 Td -(7259 struct redircmd *rcmd;) 126.687 Tj -0 -123.414 Td -(7260 ) 21.8426 Tj -0 -132.907 Td -(7261 if\(cmd == 0\)) 83.0018 Tj -0 -142.4 Td -(7262 return 0;) 78.6333 Tj -0 -151.894 Td -(7263 ) 21.8426 Tj -0 -161.387 Td -(7264 switch\(cmd->type\){) 109.213 Tj -0 -170.88 Td -(7265 case EXEC:) 74.2647 Tj -0 -180.374 Td -(7266 ecmd = \(struct execcmd*\)cmd;) 161.635 Tj -0 -189.867 Td -(7267 for\(i=0; ecmd->argv[i]; i++\)) 161.635 Tj -0 -199.361 Td -(7268 *ecmd->eargv[i] = 0;) 135.424 Tj -0 -208.854 Td -(7269 break;) 65.5277 Tj -0 -218.347 Td -(7270 ) 21.8426 Tj -0 -227.841 Td -(7271 case REDIR:) 78.6333 Tj +(7258 cmd = pipecmd\(cmd, parsepipe\(ps, es\)\);) 205.3202 Tj +0 -113.9203 Td +(7259 }) 34.9481 Tj +0 -123.4137 Td +(7260 return cmd;) 78.6333 Tj +0 -132.9071 Td +(7261 }) 26.2111 Tj +0 -142.4004 Td +(7262 ) 21.8426 Tj +0 -151.8938 Td +(7263 struct cmd*) 69.8962 Tj +0 -161.3871 Td +(7264 parseredirs\(struct cmd *cmd, char **ps, char *es\)) 235.8998 Tj +0 -170.8805 Td +(7265 {) 26.2111 Tj +0 -180.3739 Td +(7266 int tok;) 65.5277 Tj +0 -189.8672 Td +(7267 char *q, *eq;) 87.3703 Tj +0 -199.3606 Td +(7268 ) 21.8426 Tj +0 -208.8539 Td +(7269 while\(peek\(ps, es, "<>"\)\){) 144.161 Tj +0 -218.3473 Td +(7270 tok = gettoken\(ps, es, 0, 0\);) 166.0035 Tj +0 -227.8407 Td +(7271 if\(gettoken\(ps, es, &q, &eq\) != 'a'\)) 196.5831 Tj 0 -237.334 Td -(7272 rcmd = \(struct redircmd*\)cmd;) 166.004 Tj -0 -246.827 Td -(7273 nulterminate\(rcmd->cmd\);) 144.161 Tj -0 -256.321 Td -(7274 *rcmd->efile = 0;) 113.581 Tj -0 -265.814 Td -(7275 break;) 65.5277 Tj -0 -275.307 Td -(7276 ) 21.8426 Tj -0 -284.801 Td -(7277 case PIPE:) 74.2647 Tj -0 -294.294 Td -(7278 pcmd = \(struct pipecmd*\)cmd;) 161.635 Tj -0 -303.788 Td -(7279 nulterminate\(pcmd->left\);) 148.529 Tj -0 -313.281 Td -(7280 nulterminate\(pcmd->right\);) 152.898 Tj -0 -322.774 Td -(7281 break;) 65.5277 Tj -0 -332.268 Td -(7282 ) 21.8426 Tj +(7272 panic\("missing file for redirection"\);) 214.0572 Tj +0 -246.8274 Td +(7273 switch\(tok\){) 91.7388 Tj +0 -256.3207 Td +(7274 case '<':) 78.6333 Tj +0 -265.8141 Td +(7275 cmd = redircmd\(cmd, q, eq, O_RDONLY, 0\);) 222.7942 Tj +0 -275.3075 Td +(7276 break;) 74.2647 Tj +0 -284.8008 Td +(7277 case '>':) 78.6333 Tj +0 -294.2942 Td +(7278 cmd = redircmd\(cmd, q, eq, O_WRONLY|O_CREATE, 1\);) 262.1109 Tj +0 -303.7875 Td +(7279 break;) 74.2647 Tj +0 -313.2809 Td +(7280 case '+': // >>) 109.2129 Tj +0 -322.7743 Td +(7281 cmd = redircmd\(cmd, q, eq, O_WRONLY|O_CREATE, 1\);) 262.1109 Tj +0 -332.2676 Td +(7282 break;) 74.2647 Tj 0 -341.761 Td -(7283 case LIST:) 74.2647 Tj -0 -351.254 Td -(7284 lcmd = \(struct listcmd*\)cmd;) 161.635 Tj -0 -360.748 Td -(7285 nulterminate\(lcmd->left\);) 148.529 Tj -0 -370.241 Td -(7286 nulterminate\(lcmd->right\);) 152.898 Tj -0 -379.734 Td -(7287 break;) 65.5277 Tj -0 -389.228 Td +(7283 }) 43.6851 Tj +0 -351.2543 Td +(7284 }) 34.9481 Tj +0 -360.7477 Td +(7285 return cmd;) 78.6333 Tj +0 -370.2411 Td +(7286 }) 26.2111 Tj +0 -379.7344 Td +(7287 ) 21.8426 Tj +0 -389.2278 Td (7288 ) 21.8426 Tj -0 -398.721 Td -(7289 case BACK:) 74.2647 Tj -0 -408.214 Td -(7290 bcmd = \(struct backcmd*\)cmd;) 161.635 Tj -0 -417.708 Td -(7291 nulterminate\(bcmd->cmd\);) 144.161 Tj -0 -427.201 Td -(7292 break;) 65.5277 Tj -0 -436.695 Td -(7293 }) 34.9481 Tj -0 -446.188 Td -(7294 return cmd;) 78.6333 Tj -0 -455.681 Td -(7295 }) 26.2111 Tj -0 -465.175 Td +0 -398.7211 Td +(7289 ) 21.8426 Tj +0 -408.2145 Td +(7290 ) 21.8426 Tj +0 -417.7079 Td +(7291 ) 21.8426 Tj +0 -427.2012 Td +(7292 ) 21.8426 Tj +0 -436.6946 Td +(7293 ) 21.8426 Tj +0 -446.1879 Td +(7294 ) 21.8426 Tj +0 -455.6813 Td +(7295 ) 21.8426 Tj +0 -465.1747 Td (7296 ) 21.8426 Tj 0 -474.668 Td (7297 ) 21.8426 Tj -0 -484.161 Td +0 -484.1614 Td (7298 ) 21.8426 Tj -0 -493.655 Td +0 -493.6547 Td (7299 ) 21.8426 Tj -0 -522.135 Td +0 -522.1348 Td (Sheet 72) 34.9481 Tj Q Q @@ -23453,8 +23429,275 @@ Q showpage %%PageTrailer pdfEndPage +%%Page: 80 80 +%%BeginPageSetup +%%PageOrientation: Landscape +pdfStartPage +180 rotate +-612 -792 translate +0 0 612 792 re W +%%EndPageSetup +[] 0 d +1 i +0 j +0 J +10 M +1 w +/DeviceGray {} cs +[0] sc +/DeviceGray {} CS +[0] SC +false op +false OP +{} settransfer +q +q +[0.1 0 0 0.1 0 0] cm +q +180 3960 5760 3460 re +W +/DeviceGray {} CS +[0] SC +/DeviceGray {} cs +[0] sc +q +[10 0 0 10 0 0] cm +[1 0 0 1 0 0] Tm +0 0 Td +[0 -0.9679 1 0 564.72 738.865] Tm +0 0 Td +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 10) 157.2665 Tj +0 -28.4801 Td +(7300 struct cmd*) 69.8962 Tj +0 -37.9735 Td +(7301 parseblock\(char **ps, char *es\)) 157.2665 Tj +0 -47.4668 Td +(7302 {) 26.2111 Tj +0 -56.9602 Td +(7303 struct cmd *cmd;) 100.4758 Tj +0 -66.4535 Td +(7304 ) 21.8426 Tj +0 -75.9469 Td +(7305 if\(!peek\(ps, es, "\("\)\)) 126.6869 Tj +0 -85.4403 Td +(7306 panic\("parseblock"\);) 126.6869 Tj +0 -94.9336 Td +(7307 gettoken\(ps, es, 0, 0\);) 131.0554 Tj +0 -104.427 Td +(7308 cmd = parseline\(ps, es\);) 135.4239 Tj +0 -113.9203 Td +(7309 if\(!peek\(ps, es, "\)"\)\)) 126.6869 Tj +0 -123.4137 Td +(7310 panic\("syntax - missing \)"\);) 161.635 Tj +0 -132.9071 Td +(7311 gettoken\(ps, es, 0, 0\);) 131.0554 Tj +0 -142.4004 Td +(7312 cmd = parseredirs\(cmd, ps, es\);) 166.0035 Tj +0 -151.8938 Td +(7313 return cmd;) 78.6333 Tj +0 -161.3871 Td +(7314 }) 26.2111 Tj +0 -170.8805 Td +(7315 ) 21.8426 Tj +0 -180.3739 Td +(7316 struct cmd*) 69.8962 Tj +0 -189.8672 Td +(7317 parseexec\(char **ps, char *es\)) 152.898 Tj +0 -199.3606 Td +(7318 {) 26.2111 Tj +0 -208.8539 Td +(7319 char *q, *eq;) 87.3703 Tj +0 -218.3473 Td +(7320 int tok, argc;) 91.7388 Tj +0 -227.8407 Td +(7321 struct execcmd *cmd;) 117.9499 Tj +0 -237.334 Td +(7322 struct cmd *ret;) 100.4758 Tj +0 -246.8274 Td +(7323 ) 21.8426 Tj +0 -256.3207 Td +(7324 if\(peek\(ps, es, "\("\)\)) 122.3184 Tj +0 -265.8141 Td +(7325 return parseblock\(ps, es\);) 152.898 Tj +0 -275.3075 Td +(7326 ) 21.8426 Tj +0 -284.8008 Td +(7327 ret = execcmd\(\);) 100.4758 Tj +0 -294.2942 Td +(7328 cmd = \(struct execcmd*\)ret;) 148.5295 Tj +0 -303.7875 Td +(7329 ) 21.8426 Tj +0 -313.2809 Td +(7330 argc = 0;) 69.8962 Tj +0 -322.7743 Td +(7331 ret = parseredirs\(ret, ps, es\);) 166.0035 Tj +0 -332.2676 Td +(7332 while\(!peek\(ps, es, "|\)&;"\)\){) 157.2665 Tj +0 -341.761 Td +(7333 if\(\(tok=gettoken\(ps, es, &q, &eq\)\) == 0\)) 214.0572 Tj +0 -351.2543 Td +(7334 break;) 74.2647 Tj +0 -360.7477 Td +(7335 if\(tok != 'a'\)) 100.4758 Tj +0 -370.2411 Td +(7336 panic\("syntax"\);) 117.9499 Tj +0 -379.7344 Td +(7337 cmd->argv[argc] = q;) 126.6869 Tj +0 -389.2278 Td +(7338 cmd->eargv[argc] = eq;) 135.4239 Tj +0 -398.7211 Td +(7339 argc++;) 69.8962 Tj +0 -408.2145 Td +(7340 if\(argc >= MAXARGS\)) 122.3184 Tj +0 -417.7079 Td +(7341 panic\("too many args"\);) 148.5295 Tj +0 -427.2012 Td +(7342 ret = parseredirs\(ret, ps, es\);) 174.7406 Tj +0 -436.6946 Td +(7343 }) 34.9481 Tj +0 -446.1879 Td +(7344 cmd->argv[argc] = 0;) 117.9499 Tj +0 -455.6813 Td +(7345 cmd->eargv[argc] = 0;) 122.3184 Tj +0 -465.1747 Td +(7346 return ret;) 78.6333 Tj +0 -474.668 Td +(7347 }) 26.2111 Tj +0 -484.1614 Td +(7348 ) 21.8426 Tj +0 -493.6547 Td +(7349 ) 21.8426 Tj +0 -522.1348 Td +(Sheet 73) 34.9481 Tj +Q +Q +q +180 500 5760 3460 re +W +/DeviceGray {} CS +[0] SC +/DeviceGray {} cs +[0] sc +q +[10 0 0 10 0 0] cm +[1 0 0 1 0 0] Tm +0 0 Td +[0 -0.9679 1 0 564.72 392.865] Tm +0 0 Td +/F8_0 8.7022 Tf +(Sep 3 10:05 2008 xv6/sh.c Page 11) 157.2665 Tj +0 -28.4801 Td +(7350 // NUL-terminate all the counted strings.) 200.9517 Tj +0 -37.9735 Td +(7351 struct cmd*) 69.8962 Tj +0 -47.4668 Td +(7352 nulterminate\(struct cmd *cmd\)) 148.5295 Tj +0 -56.9602 Td +(7353 {) 26.2111 Tj +0 -66.4535 Td +(7354 int i;) 56.7907 Tj +0 -75.9469 Td +(7355 struct backcmd *bcmd;) 122.3184 Tj +0 -85.4403 Td +(7356 struct execcmd *ecmd;) 122.3184 Tj +0 -94.9336 Td +(7357 struct listcmd *lcmd;) 122.3184 Tj +0 -104.427 Td +(7358 struct pipecmd *pcmd;) 122.3184 Tj +0 -113.9203 Td +(7359 struct redircmd *rcmd;) 126.6869 Tj +0 -123.4137 Td +(7360 ) 21.8426 Tj +0 -132.9071 Td +(7361 if\(cmd == 0\)) 83.0018 Tj +0 -142.4004 Td +(7362 return 0;) 78.6333 Tj +0 -151.8938 Td +(7363 ) 21.8426 Tj +0 -161.3871 Td +(7364 switch\(cmd->type\){) 109.2129 Tj +0 -170.8805 Td +(7365 case EXEC:) 74.2647 Tj +0 -180.3739 Td +(7366 ecmd = \(struct execcmd*\)cmd;) 161.635 Tj +0 -189.8672 Td +(7367 for\(i=0; ecmd->argv[i]; i++\)) 161.635 Tj +0 -199.3606 Td +(7368 *ecmd->eargv[i] = 0;) 135.4239 Tj +0 -208.8539 Td +(7369 break;) 65.5277 Tj +0 -218.3473 Td +(7370 ) 21.8426 Tj +0 -227.8407 Td +(7371 case REDIR:) 78.6333 Tj +0 -237.334 Td +(7372 rcmd = \(struct redircmd*\)cmd;) 166.0035 Tj +0 -246.8274 Td +(7373 nulterminate\(rcmd->cmd\);) 144.161 Tj +0 -256.3207 Td +(7374 *rcmd->efile = 0;) 113.5814 Tj +0 -265.8141 Td +(7375 break;) 65.5277 Tj +0 -275.3075 Td +(7376 ) 21.8426 Tj +0 -284.8008 Td +(7377 case PIPE:) 74.2647 Tj +0 -294.2942 Td +(7378 pcmd = \(struct pipecmd*\)cmd;) 161.635 Tj +0 -303.7875 Td +(7379 nulterminate\(pcmd->left\);) 148.5295 Tj +0 -313.2809 Td +(7380 nulterminate\(pcmd->right\);) 152.898 Tj +0 -322.7743 Td +(7381 break;) 65.5277 Tj +0 -332.2676 Td +(7382 ) 21.8426 Tj +0 -341.761 Td +(7383 case LIST:) 74.2647 Tj +0 -351.2543 Td +(7384 lcmd = \(struct listcmd*\)cmd;) 161.635 Tj +0 -360.7477 Td +(7385 nulterminate\(lcmd->left\);) 148.5295 Tj +0 -370.2411 Td +(7386 nulterminate\(lcmd->right\);) 152.898 Tj +0 -379.7344 Td +(7387 break;) 65.5277 Tj +0 -389.2278 Td +(7388 ) 21.8426 Tj +0 -398.7211 Td +(7389 case BACK:) 74.2647 Tj +0 -408.2145 Td +(7390 bcmd = \(struct backcmd*\)cmd;) 161.635 Tj +0 -417.7079 Td +(7391 nulterminate\(bcmd->cmd\);) 144.161 Tj +0 -427.2012 Td +(7392 break;) 65.5277 Tj +0 -436.6946 Td +(7393 }) 34.9481 Tj +0 -446.1879 Td +(7394 return cmd;) 78.6333 Tj +0 -455.6813 Td +(7395 }) 26.2111 Tj +0 -465.1747 Td +(7396 ) 21.8426 Tj +0 -474.668 Td +(7397 ) 21.8426 Tj +0 -484.1614 Td +(7398 ) 21.8426 Tj +0 -493.6547 Td +(7399 ) 21.8426 Tj +0 -522.1348 Td +(Sheet 73) 34.9481 Tj +Q +Q +Q +Q +showpage +%%PageTrailer +pdfEndPage %%Trailer end %%DocumentSuppliedResources: -%%+ font LucidaSans-Typewriter83 +%%+ font YLWBJI+LucidaSans-Typewriter83 %%EOF -- cgit v1.2.3