blob: 9aacf59164bea6582e8e90e8d496d5491da883cd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
#include <asm/unistd.h>
#ifndef __NR_vfork
#define __NR_vfork __NR_fork /* uClinux-2.0 only has fork which is vfork */
#endif
#define IMM #
.text
.align 2
.globl errno
.globl vfork
#if defined HAVE_ELF
.type vfork,@function
#endif
vfork:
movl %sp@+, %a1 /* save the return address for later */
movl IMM __NR_vfork,%d0
trap #0
movl IMM -4097, %d1
cmpl %d0, %d1
bcs fix_errno
jmp %a1@ /* don't return, just jmp directly */
fix_errno:
negl %d0
#ifndef __PIC__
movl errno, %a0
#else
movl errno@GOT(%a5), %a0
#endif
movl %d0, %a0@
movl IMM -1, %d0
jmp %a1@ /* don't return, just jmp directly */
|
