1246117Skib/*	$NetBSD: fork.S,v 1.11 2003/08/07 16:42:17 agc Exp $	*/
2246117Skib
3246117Skib/*-
4246117Skib * Copyright (c) 1991, 1993
5246117Skib *	The Regents of the University of California.  All rights reserved.
6246117Skib *
7246117Skib * This code is derived from software contributed to Berkeley by
8246117Skib * Ralph Campbell.
9246117Skib *
10246117Skib * Redistribution and use in source and binary forms, with or without
11246117Skib * modification, are permitted provided that the following conditions
12246117Skib * are met:
13246117Skib * 1. Redistributions of source code must retain the above copyright
14246117Skib *    notice, this list of conditions and the following disclaimer.
15246117Skib * 2. Redistributions in binary form must reproduce the above copyright
16246117Skib *    notice, this list of conditions and the following disclaimer in the
17246117Skib *    documentation and/or other materials provided with the distribution.
18246117Skib * 3. Neither the name of the University nor the names of its contributors
19246117Skib *    may be used to endorse or promote products derived from this software
20246117Skib *    without specific prior written permission.
21246117Skib *
22246117Skib * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23246117Skib * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24246117Skib * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25246117Skib * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26246117Skib * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27246117Skib * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28246117Skib * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29246117Skib * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30246117Skib * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31246117Skib * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32246117Skib * SUCH DAMAGE.
33246117Skib */
34246117Skib
35246117Skib#include <machine/asm.h>
36246117Skib__FBSDID("$FreeBSD: releng/10.3/lib/libc/mips/sys/fork.S 209231 2010-06-16 12:55:14Z jchandra $");
37246117Skib#include "SYS.h"
38246117Skib
39246117Skib#if defined(LIBC_SCCS) && !defined(lint)
40246117Skib	ASMSTR("from: @(#)fork.s	8.1 (Berkeley) 6/4/93")
41246117Skib	ASMSTR("$NetBSD: fork.S,v 1.11 2003/08/07 16:42:17 agc Exp $")
42246117Skib#endif /* LIBC_SCCS and not lint */
43246117Skib
44246117SkibLEAF(__sys_fork)
45246117Skib	WEAK_ALIAS(fork, __sys_fork)
46246117Skib	WEAK_ALIAS(_fork, __sys_fork)
47246117Skib	PIC_PROLOGUE(__sys_fork)
48246117Skib	li	v0, SYS_fork	# pid = fork()
49	syscall
50	bne	a3, zero, 2f
51	beq	v1, zero, 1f	# v1 == 0 in parent, 1 in child
52	move	v0, zero
531:
54	PIC_RETURN()
552:
56	PIC_TAILCALL(__cerror)
57END(__sys_fork)
58