1281197Sandrew/*- 2281197Sandrew * Copyright (c) 2014 Andrew Turner 3281197Sandrew * All rights reserved. 4281197Sandrew * 5281197Sandrew * Redistribution and use in source and binary forms, with or without 6281197Sandrew * modification, are permitted provided that the following conditions 7281197Sandrew * are met: 8281197Sandrew * 1. Redistributions of source code must retain the above copyright 9281197Sandrew * notice, this list of conditions and the following disclaimer. 10281197Sandrew * 2. Redistributions in binary form must reproduce the above copyright 11281197Sandrew * notice, this list of conditions and the following disclaimer in the 12281197Sandrew * documentation and/or other materials provided with the distribution. 13281197Sandrew * 14281197Sandrew * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15281197Sandrew * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16281197Sandrew * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17281197Sandrew * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18281197Sandrew * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19281197Sandrew * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20281197Sandrew * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21281197Sandrew * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22281197Sandrew * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23281197Sandrew * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24281197Sandrew * SUCH DAMAGE. 25281197Sandrew * 26281197Sandrew */ 27281197Sandrew 28281197Sandrew#include <machine/asm.h> 29281197Sandrew__FBSDID("$FreeBSD: releng/11.0/lib/libc/aarch64/sys/vfork.S 281197 2015-04-07 09:52:14Z andrew $"); 30281197Sandrew#include "SYS.h" 31281197Sandrew 32281197SandrewENTRY(__sys_vfork) 33281197Sandrew WEAK_REFERENCE(__sys_vfork, vfork) 34281197Sandrew WEAK_REFERENCE(__sys_vfork, _vfork) 35281197Sandrew mov x2, lr 36281197Sandrew _SYSCALL(vfork) 37281197Sandrew b.cs cerror 38281197Sandrew sub x1, x1, #1 39281197Sandrew and x0, x0, x1 40281197Sandrew mov lr, x2 41281197Sandrew ret 42281197SandrewEND(__sys_vfork) 43