From 8b4e2a08febc8b957b44732dbc7da831479a0005 Mon Sep 17 00:00:00 2001
From: rtm <rtm>
Date: Sat, 1 Jul 2006 21:26:01 +0000
Subject: swtch saves callee-saved registers swtch idles on per-CPU stack, not
 on calling process's stack fix pipe bugs usertest.c tests pipes, fork, exit,
 close

---
 ulib.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'ulib.c')

diff --git a/ulib.c b/ulib.c
index 694501e..d99acdd 100644
--- a/ulib.c
+++ b/ulib.c
@@ -5,6 +5,13 @@ fork()
   asm("int $48");
 }
 
+int
+exit()
+{
+  asm("mov $2, %eax");
+  asm("int $48");
+}
+
 void
 cons_putc(int c)
 {
@@ -42,3 +49,10 @@ write(int fd, char *buf, int n)
   asm("mov $6, %eax");
   asm("int $48");
 }
+
+int
+close(int fd)
+{
+  asm("mov $8, %eax");
+  asm("int $48");
+}
-- 
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