/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <firstname.lastname@example.org>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
#define __ASSEMBLY__ /* for kernel headers */
/* Clone the calling process, but without copying the whole address space.
The calling process is suspended until the new process exits or is
replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
and the process ID of the new process to the old process. */
moveli r0, CLONE_VFORK | CLONE_VM | SIGCHLD
move r1, zero
move r2, zero
move r3, zero
moveli TREG_SYSCALL_NR_NAME, __NR_clone
BNEZ r1, 0f
weak_alias (__vfork, vfork)
strong_alias (__vfork, __libc_vfork)