/* vi: set sw=4 ts=4: */ /* vfork for uClibc * * Copyright (C) 2000 by Lineo, inc. and Erik Andersen * Copyright (C) 2000,2001 by Erik Andersen <andersen@uclibc.org> * Written by Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <features.h> #define _ERRNO_H #include <bits/errno.h> #include <sys/syscall.h> #ifdef __NR_fork .text .global vfork .type vfork,%function .align 4 vfork: #ifdef __NR_vfork swi __NR_vfork cmn r0, #4096 movcc pc, lr /* Check if vfork even exists. */ ldr r1, =-ENOSYS teq r0, r1 bne __error #endif /* If we don't have vfork, use fork. */ swi __NR_fork cmn r0, #4096 /* Syscall worked. Return to child/parent */ movcc pc, lr __error: b __syscall_error .size vfork,.-vfork libc_hidden_def(vfork) #endif