xref: /titanic_51/usr/src/lib/libbc/inc/include/sys/setjmp.h (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, 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 /*	from UCB 4.1 83/05/03	*/
23 
24 #pragma ident	"%Z%%M%	%I%	%E% SMI"
25 
26 #ifndef	__sparc_setjmp_h
27 #define	__sparc_setjmp_h
28 
29 /*
30  * onsstack,sigmask,sp,pc,npc,psr,g1,o0,wbcnt (sigcontext).
31  * All else recovered by under/over(flow) handling.
32  */
33 #define	_JBLEN	9
34 
35 typedef	int jmp_buf[_JBLEN];
36 
37 /*
38  * One extra word for the "signal mask saved here" flag.
39  */
40 typedef	int sigjmp_buf[_JBLEN+1];
41 
42 int	setjmp(/* jmp_buf env */);
43 int	_setjmp(/* jmp_buf env */);
44 int	sigsetjmp(/* sigjmp_buf env, int savemask */);
45 void	longjmp(/* jmp_buf env, int val */);
46 void	_longjmp(/* jmp_buf env, int val */);
47 void	siglongjmp(/* sigjmp_buf env, int val */);
48 
49 /*
50  * Routines that call setjmp have strange control flow graphs,
51  * since a call to a routine that calls resume/longjmp will eventually
52  * return at the setjmp site, not the original call site.  This
53  * utterly wrecks control flow analysis.
54  */
55 #pragma unknown_control_flow(sigsetjmp, setjmp, _setjmp)
56 
57 #endif	/* !__sparc_setjmp_h */
58