xref: /titanic_41/usr/src/lib/libc/sparc/sys/__getcontext.s (revision 2449e17f82f6097fd2c665b64723e31ceecbeca6)
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, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29	.file	"%M%"
30
31/*
32 * __getcontext() must be implemented in assembler, as opposed
33 * to the other members of the SYS_context family (see ucontext.c)
34 * because we must be careful to get the precise context of the caller.
35 */
36
37#include "SYS.h"
38
39	ANSI_PRAGMA_WEAK2(__getcontext_syscall,__getcontext,function)
40
41	ENTRY(__getcontext)
42	mov	%o0, %o1
43	mov	0, %o0
44	SYSTRAP_RVAL1(context)
45	SYSCERROR
46	RET
47	SET_SIZE(__getcontext)
48