1/*
2 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/* Copyright (c) 1998 Apple Computer, Inc.  All rights reserved.
29 *
30 *	File:	ppc/setjmp.h
31 *
32 *	Declaration of setjmp routines and data structures.
33 */
34#ifndef _BSD_PPC_SETJMP_H_
35#define _BSD_PPC_SETJMP_H_
36
37#include <sys/cdefs.h>
38
39#define __need_struct_sigcontext
40#if defined(KERNEL)
41#define __need_struct_sigcontext32
42#define __need_struct_sigcontext64
43#endif /* KERNEL */
44#include <ppc/_structs.h>
45
46struct _jmp_buf {
47#if __DARWIN_UNIX03
48	_STRUCT_SIGCONTEXT	__sigcontext; /* kernel state preserved by set/longjmp */
49	unsigned int __vmask __attribute__((aligned(8))); /* vector mask register */
50	unsigned int __vreg[32 * 4] __attribute__((aligned(16)));
51		/* 32 128-bit vector registers */
52#else /* !__DARWIN_UNIX03 */
53	_STRUCT_SIGCONTEXT	sigcontext; /* kernel state preserved by set/longjmp */
54	unsigned int vmask __attribute__((aligned(8))); /* vector mask register */
55	unsigned int vreg[32 * 4] __attribute__((aligned(16)));
56		/* 32 128-bit vector registers */
57#endif /* __DARWIN_UNIX03 */
58};
59
60/*
61 *	_JBLEN is number of ints required to save the following:
62 *	r1, r2, r13-r31, lr, cr, ctr, xer, sig  == 26 register_t sized
63 *	fr14 -  fr31 = 18 doubles
64 *	vmask, 32 vector registers = 129 ints
65 *	2 ints to get all the elements aligned
66 *
67 *	register_t is 2 ints for ppc64 threads
68 */
69#define _JBLEN64	(26*2 + 18*2 + 129 + 1)
70#define _JBLEN32	(26 + 18*2 + 129 + 1)
71#define _JBLEN_MAX	_JBLEN64
72
73/*
74 * Locally scoped sizes
75 */
76#if defined(__ppc64__)
77#define _JBLEN _JBLEN64
78#else
79#define _JBLEN _JBLEN32
80#endif
81
82#if defined(KERNEL)
83typedef _STRUCT_SIGCONTEXT32 jmp_buf32[1];
84typedef struct __sigjmp_buf32 {
85		int __storage[_JBLEN32 + 1] __attribute__((aligned(8)));
86		} sigjmp_buf32[1];
87
88typedef struct sigcontext64 jmp_buf64[1];
89typedef struct __sigjmp_buf64 {
90		int __storage[_JBLEN64 + 1] __attribute__((aligned(8)));
91		} sigjmp_buf64[1];
92
93/*
94 * JMM - have to decide how the kernel will deal with this.
95 * For now, hard-code the 32-bit types.
96 */
97typedef _STRUCT_SIGCONTEXT32 jmp_buf[1];
98typedef struct __sigjmp_buf32 sigjmp_buf[1];
99
100#else
101typedef int jmp_buf[_JBLEN];
102typedef int sigjmp_buf[_JBLEN + 1];
103#endif
104
105__BEGIN_DECLS
106int	setjmp(jmp_buf);
107void	longjmp(jmp_buf, int);
108
109#ifndef _ANSI_SOURCE
110int	_setjmp(jmp_buf);
111void	_longjmp(jmp_buf, int);
112int	sigsetjmp(sigjmp_buf, int);
113void	siglongjmp(sigjmp_buf, int);
114#endif /* _ANSI_SOURCE  */
115
116#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
117void	longjmperror(void);
118#endif /* neither ANSI nor POSIX */
119__END_DECLS
120
121#endif /* !_BSD_PPC_SETJMP_H_ */
122