blob: 53910aba3714055c5ea3dbc920616d4072dcf3b3 [file] [log] [blame]
#include <sys/linux-syscalls.h>
#ifndef __NR_vfork
#define __NR_vfork 190
.type vfork, @function
.globl vfork
.align 4
/* Get rid of the stack modifications (popl/ret) after vfork() success.
* vfork is VERY sneaky. One has to be very careful about what can be done
* between a successful vfork and a a subsequent execve()
/* grab the return address */
popl %ecx
movl $__NR_vfork, %eax
int $0x80
cmpl $-129, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno
orl $-1, %eax
jmp *%ecx