/* * 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 .type vfork,@function 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)