xref: /titanic_51/usr/src/lib/libc/sparc/sys/forkallx.s (revision 1e49577a7fcde812700ded04431b49d67cc57d6d)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*	Copyright (c) 1988 AT&T	*/
23/*	  All Rights Reserved	*/
24
25/*
26 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
27 * Use is subject to license terms.
28 */
29
30	.file	"forkallx.s"
31
32#include "SYS.h"
33
34/*
35 * pid = __forkallx(flags);
36 *
37 * syscall trap: forksys(1, flags)
38 *
39 * From the syscall:
40 * %o1 == 0 in parent process, %o1 == 1 in child process.
41 * %o0 == pid of child in parent, %o0 == pid of parent in child.
42 *
43 * The child gets a zero return value.
44 * The parent gets the pid of the child.
45 */
46
47	ENTRY(__forkallx)
48	mov	%o0, %o1
49	mov	1, %o0
50	SYSTRAP_2RVALS(forksys)
51	SYSCERROR
52	movrnz	%o1, 0, %o0
53	RET
54	SET_SIZE(__forkallx)
55