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/*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <features.h>
#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
#ifdef __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__ /* needs handling as the other archs */
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 */
.size vfork,.-vfork
libc_hidden_def(vfork)
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