xref: /illumos-gate/usr/src/boot/sys/x86/include/setjmp.h (revision 199767f8919635c4928607450d9e0abb932109ce)
1 /*-
2  * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the author nor the names of any co-contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _MACHINE_SETJMP_H_
33 #define	_MACHINE_SETJMP_H_
34 
35 #include <sys/cdefs.h>
36 
37 #define	_JBLEN	12		/* Size of the jmp_buf on AMD64. */
38 
39 /*
40  * jmp_buf and sigjmp_buf are encapsulated in different structs to force
41  * compile-time diagnostics for mismatches.  The structs are the same
42  * internally to avoid some run-time errors for mismatches.
43  */
44 #if __BSD_VISIBLE || __POSIX_VISIBLE || __XSI_VISIBLE
45 typedef	struct _sigjmp_buf { long _sjb[_JBLEN]; } sigjmp_buf[1];
46 #endif
47 
48 typedef	struct _jmp_buf { long _jb[_JBLEN]; } jmp_buf[1];
49 
50 #endif /* !_MACHINE_SETJMP_H_ */
51