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| author | rsc <rsc> | 2007-08-08 09:12:53 +0000 | 
|---|---|---|
| committer | rsc <rsc> | 2007-08-08 09:12:53 +0000 | 
| commit | 3fd50978a8756be8859cc5b98fca51d2e7127623 (patch) | |
| tree | b57a679d6b7e2337ca3b6981419831df2f199312 | |
| parent | 5d0fe3445bbe19b85c32ed066b134d7e6ad8cc9d (diff) | |
| download | xv6-labs-3fd50978a8756be8859cc5b98fca51d2e7127623.tar.gz xv6-labs-3fd50978a8756be8859cc5b98fca51d2e7127623.tar.bz2 xv6-labs-3fd50978a8756be8859cc5b98fca51d2e7127623.zip | |
spacing
| -rw-r--r-- | BUGS | 3 | ||||
| -rw-r--r-- | mmu.h | 34 | 
2 files changed, 17 insertions, 20 deletions
| @@ -1,9 +1,6 @@  index:  	SEG_NULL, SEG_ASM not in the index -mmu.h: -	funny \ alignment in mmu.h -  proc.c:  	as a consequence of the implementation of proc_kill,  	any loop calling sleep should check for p->killed @@ -47,12 +47,12 @@ struct segdesc {  // Normal segment  #define SEG(type, base, lim, dpl) (struct segdesc)                      \  { ((lim) >> 12) & 0xffff, (base) & 0xffff, ((base) >> 16) & 0xff,       \ -    type, 1, dpl, 1, (uint) (lim) >> 28, 0, 0, 1, 1,            \ +    type, 1, dpl, 1, (uint) (lim) >> 28, 0, 0, 1, 1,                    \      (uint) (base) >> 24 }  #define SEG16(type, base, lim, dpl) (struct segdesc)                    \  { (lim) & 0xffff, (base) & 0xffff, ((base) >> 16) & 0xff,               \ -    type, 1, dpl, 1, (uint) (lim) >> 16, 0, 0, 1, 0,            \ +    type, 1, dpl, 1, (uint) (lim) >> 16, 0, 0, 1, 0,                    \      (uint) (base) >> 24 }  #define DPL_USER    0x3     // User DPL @@ -81,9 +81,9 @@ struct segdesc {  // Task state segment format  struct taskstate { -  uint link;      // Old ts selector -  uint esp0;      // Stack pointers and segment selectors -  ushort ss0;     //   after an increase in privilege level +  uint link;         // Old ts selector +  uint esp0;         // Stack pointers and segment selectors +  ushort ss0;        //   after an increase in privilege level    ushort padding1;    uint *esp1;    ushort ss1; @@ -91,10 +91,10 @@ struct taskstate {    uint *esp2;    ushort ss2;    ushort padding3; -  void *cr3;     // Page directory base -  uint *eip;     // Saved state from last task switch +  void *cr3;         // Page directory base +  uint *eip;         // Saved state from last task switch    uint eflags; -  uint eax;       // More saved state (registers) +  uint eax;          // More saved state (registers)    uint ecx;    uint edx;    uint ebx; @@ -102,7 +102,7 @@ struct taskstate {    uint *ebp;    uint esi;    uint edi; -  ushort es;              // Even more saved state (segment selectors) +  ushort es;         // Even more saved state (segment selectors)    ushort padding4;    ushort cs;    ushort padding5; @@ -116,8 +116,8 @@ struct taskstate {    ushort padding9;    ushort ldt;    ushort padding10; -  ushort t;               // Trap on task switch -  ushort iomb;    // I/O map base address +  ushort t;          // Trap on task switch +  ushort iomb;       // I/O map base address  };  // Gate descriptors for interrupts and traps @@ -141,16 +141,16 @@ struct gatedesc {  // - dpl: Descriptor Privilege Level -  //        the privilege level required for software to invoke  //        this interrupt/trap gate explicitly using an int instruction. -#define SETGATE(gate, istrap, sel, off, d)                      \ -{                                                               \ +#define SETGATE(gate, istrap, sel, off, d)                \ +{                                                         \    (gate).off_15_0 = (uint) (off) & 0xffff;                \    (gate).ss = (sel);                                      \    (gate).args = 0;                                        \    (gate).rsv1 = 0;                                        \ -  (gate).type = (istrap) ? STS_TG32 : STS_IG32;   \ -  (gate).s = 0;                                   \ +  (gate).type = (istrap) ? STS_TG32 : STS_IG32;           \ +  (gate).s = 0;                                           \    (gate).dpl = (d);                                       \ -  (gate).p = 1;                                   \ -  (gate).off_31_16 = (uint) (off) >> 16;          \ +  (gate).p = 1;                                           \ +  (gate).off_31_16 = (uint) (off) >> 16;                  \  } | 
