/* 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> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Library General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License * for more details. * * You should have received a copy of the GNU Library General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #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 /* Syscal worked. Return to child/parent */ movcc pc, lr __error: b __syscall_error .size vfork,.-vfork #endif