xref: /netbsd-src/lib/libc/arch/sparc/gen/sparc_longjmp.h (revision 377714d87904a4844767342f830c9610a5c6d957)
1 /*	$NetBSD: sparc_longjmp.h,v 1.1 2023/09/03 21:41:45 mrg Exp $	*/
2 
3 /*
4  * Copyright (c) 2023 Matthew R. Green
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _SPARC_LONGJMP_H_
30 #define _SPARC_LONGJMP_H_
31 
32 /*
33  * This structure is written in setjmp.S and read by longjmp.c, and is
34  * here so that genassym can access it and we can ensure the right offsets
35  * are used in the right places.
36  */
37 
38 struct __jmp_buf_regs_t {
39 	__greg_t	g4;
40 	__greg_t	g7;
41 };
42 
43 struct __jmp_buf {
44 	struct sigcontext sc;
45 	struct __jmp_buf_regs_t regs;
46 };
47 
48 #endif /* _SPARC_LONGJMP_H_ */
49