setjmp.h revision 106755 
1/*-
2 * Copyright (c) 2000
3 * Intel Corporation.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *
20 *    This product includes software developed by Intel Corporation and
21 *    its contributors.
22 *
23 * 4. Neither the name of Intel Corporation or its contributors may be
24 *    used to endorse or promote products derived from this software
25 *    without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS''
28 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE
31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
37 * THE POSSIBILITY OF SUCH DAMAGE.
38 *
39 * $FreeBSD: head/sys/ia64/include/setjmp.h 106755 2002-11-11 08:11:44Z marcel $
40 */
41
42#ifndef _MACHINE_SETJMP_H_
43#define	_MACHINE_SETJMP_H_
44
45#include <sys/cdefs.h>
46
47#if __BSD_VISIBLE
48#define	JMPBUF_ADDR_OF(buf, item)	((unsigned long)((char *)buf + item))
49
50#define	J_UNAT		0
51#define	J_NATS		0x8
52#define	J_PFS		0x10
53#define	J_BSP		0x18
54#define	J_RNAT		0x20
55#define	J_PREDS		0x28
56#define	J_LC		0x30
57#define	J_R4		0x38
58#define	J_R5		0x40
59#define	J_R6		0x48
60#define	J_R7		0x50
61#define	J_SP		0x58
62#define	J_F2		0x60
63#define	J_F3		0x70
64#define	J_F4		0x80
65#define	J_F5		0x90
66#define	J_F16		0xa0
67#define	J_F17		0xb0
68#define	J_F18		0xc0
69#define	J_F19		0xd0
70#define	J_F20		0xe0
71#define	J_F21		0xf0
72#define	J_F22		0x100
73#define	J_F23		0x110
74#define	J_F24		0x120
75#define	J_F25		0x130
76#define	J_F26		0x140
77#define	J_F27		0x150
78#define	J_F28		0x160
79#define	J_F29		0x170
80#define	J_F30		0x180
81#define	J_F31		0x190
82#define	J_FPSR		0x1a0
83#define	J_B0		0x1a8
84#define	J_B1		0x1b0
85#define	J_B2		0x1b8
86#define	J_B3		0x1c0
87#define	J_B4		0x1c8
88#define	J_B5		0x1d0
89#define	J_SIG0		0x1d8
90#define	J_SIG1		0x1e0
91#define	J_SIGMASK	0x1e8
92#endif /* __BSD_VISIBLE */
93
94/*
95 * We have 16 bytes left for future use, but it's a nice round,
96 * but above all large number. Size is in bytes.
97 */
98#define	_JMPBUFSZ	0x200
99
100/*
101 * XXX this check is wrong, since LOCORE is in the application namespace and
102 * applications shouldn't be able to affect the implementation.  One workaround
103 * would be to only check LOCORE if _KERNEL is defined, but unfortunately
104 * LOCORE is used outside of the kernel.  The best solution would be to rename
105 * LOCORE to _LOCORE, so that it can be used in userland to safely affect the
106 * implementation.
107 */
108#ifndef LOCORE
109
110/*
111 * jmp_buf and sigjmp_buf are encapsulated in different structs to force
112 * compile-time diagnostics for mismatches.  The structs are the same
113 * internally to avoid some run-time errors for mismatches.
114 */
115#if __BSD_VISIBLE || __POSIX_VISIBLE || __XSI_VISIBLE
116struct _sigjmp_buf {
117	char	_Buffer[_JMPBUFSZ];
118} __aligned(16);
119typedef struct _sigjmp_buf sigjmp_buf[1];
120#endif
121
122struct _jmp_buf {
123	char	_Buffer[_JMPBUFSZ];
124} __aligned(16);
125typedef struct _jmp_buf	jmp_buf[1];
126
127#endif /* !LOCORE */
128
129#endif /* !_MACHINE_SETJMP_H_ */
130