xref: /dragonfly/sys/cpu/x86_64/include/setjmp.h (revision 25a2db75)
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. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by John Birrell.
16  * 4. Neither the name of the author nor the names of any co-contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * $FreeBSD: src/sys/amd64/include/setjmp.h,v 1.9 2003/06/02 21:49:35 peter Exp $
33  */
34 
35 #ifndef _CPU_SETJMP_H_
36 #define	_CPU_SETJMP_H_
37 
38 #include <sys/cdefs.h>
39 
40 #define	_JBLEN	12		/* Size of the jmp_buf on x86_64. */
41 
42 /*
43  * jmp_buf and sigjmp_buf are encapsulated in different structs to force
44  * compile-time diagnostics for mismatches.  The structs are the same
45  * internally to avoid some run-time errors for mismatches.
46  */
47 #if __BSD_VISIBLE || __POSIX_VISIBLE || __XSI_VISIBLE
48 typedef	struct _sigjmp_buf { long _sjb[_JBLEN]; } sigjmp_buf[1];
49 #endif
50 
51 typedef	struct _jmp_buf { long _jb[_JBLEN]; } jmp_buf[1];
52 
53 #endif /* !_CPU_SETJMP_H_ */
54