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 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include "lint.h"
28 #include <sys/types.h>
29 #include <sys/ucontext.h>
30 #include <setjmp.h>
31 #include <ucontext.h>
32 #include "sigjmp_struct.h"
33 #include "libc.h"
34 
35 #pragma weak _siglongjmp = siglongjmp
36 
37 void
siglongjmp(sigjmp_buf env,int val)38 siglongjmp(sigjmp_buf env, int val)
39 {
40 	ucontext_t *ucp = SIGJMP2UCONTEXT(env);
41 
42 	if (val)
43 		ucp->uc_mcontext.gregs[REG_R0] = val;
44 	else
45 		ucp->uc_mcontext.gregs[REG_R0] = 1;
46 
47 	(void) setcontext(ucp);
48 }
49