xref: /illumos-gate/usr/src/head/iso/setjmp_iso.h (revision 66582b606a8194f7f3ba5b3a3a6dca5b0d346361)
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 /*	Copyright (c) 1988 AT&T	*/
23 /*	  All Rights Reserved	*/
24 
25 /*
26  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
27  *
28  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
29  * Use is subject to license terms.
30  */
31 
32 /*
33  * An application should not include this header directly.  Instead it
34  * should be included only through the inclusion of other Sun headers.
35  *
36  * The contents of this header is limited to identifiers specified in the
37  * C Standard.  Any new identifiers specified in future amendments to the
38  * C Standard must be placed in this header.  If these new identifiers
39  * are required to also be in the C++ Standard "std" namespace, then for
40  * anything other than macro definitions, corresponding "using" directives
41  * must also be added to <setjmp.h>.
42  */
43 
44 #ifndef _ISO_SETJMP_ISO_H
45 #define	_ISO_SETJMP_ISO_H
46 
47 #include <sys/feature_tests.h>
48 
49 #ifdef	__cplusplus
50 extern "C" {
51 #endif
52 
53 #ifndef _JBLEN
54 
55 /*
56  * The sizes of the jump-buffer (_JBLEN) and the sigjump-buffer
57  * (_SIGJBLEN) are defined by the appropriate, processor specific,
58  * ABI.
59  */
60 #if defined(__amd64)
61 #define	_JBLEN		8	/* ABI value */
62 #define	_SIGJBLEN	128	/* ABI value */
63 #elif defined(__i386)
64 #define	_JBLEN		10	/* ABI value */
65 #define	_SIGJBLEN	128	/* ABI value */
66 #elif defined(__sparcv9)
67 #define	_JBLEN		12	/* ABI value */
68 #define	_SIGJBLEN	19	/* ABI value */
69 #elif defined(__sparc)
70 #define	_JBLEN		12	/* ABI value */
71 #define	_SIGJBLEN	19	/* ABI value */
72 #else
73 #error "ISA not supported"
74 #endif
75 
76 #if __cplusplus >= 199711L
77 namespace std {
78 #endif
79 
80 #if defined(__i386) || defined(__amd64) || \
81 	defined(__sparc) || defined(__sparcv9)
82 #if defined(_LP64) || defined(_I32LPx)
83 typedef long	jmp_buf[_JBLEN];
84 #else
85 typedef int	jmp_buf[_JBLEN];
86 #endif
87 #else
88 #error "ISA not supported"
89 #endif
90 
91 extern int setjmp(jmp_buf) __RETURNS_TWICE;
92 #pragma unknown_control_flow(setjmp)
93 extern int _setjmp(jmp_buf) __RETURNS_TWICE;
94 #pragma unknown_control_flow(_setjmp)
95 extern void longjmp(jmp_buf, int) __NORETURN;
96 extern void _longjmp(jmp_buf, int) __NORETURN;
97 
98 #if __cplusplus >= 199711L
99 }
100 #endif /* end of namespace std */
101 
102 #if __cplusplus >= 199711L
103 using std::setjmp;
104 #endif
105 
106 #if defined(_STRICT_STDC) || __cplusplus >= 199711L
107 #define	setjmp(env)	setjmp(env)
108 #endif
109 
110 #endif  /* _JBLEN */
111 
112 #ifdef	__cplusplus
113 }
114 #endif
115 
116 #endif	/* _ISO_SETJMP_ISO_H */
117