1 /* Copyright (C) 1999-2017 Free Software Foundation, Inc.
3 The GNU C Library is free software; you can redistribute it and/or
4 modify it under the terms of the GNU Lesser General Public License as
5 published by the Free Software Foundation; either version 2.1 of the
6 License, or (at your option) any later version.
8 The GNU C Library is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 Lesser General Public License for more details.
13 You should have received a copy of the GNU Lesser General Public
14 License along with the GNU C Library; if not, see
15 <http://www.gnu.org/licenses/>. */
19 #include <bits/errno.h>
21 /* Clone the calling process, but without copying the whole address space.
22 The calling process is suspended until the new process exits or is
23 replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
24 and the process ID of the new process to the old process. */
28 mov x0, #0x4111 /* CLONE_VM | CLONE_VFORK | SIGCHLD */
37 libc_hidden_def(vfork)
39 weak_alias (__vfork, vfork)