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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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