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: stable/10/sys/ia64/include/setjmp.h 118048 2003-07-26 08:03:43Z 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_SIGMASK	0x1d8
90 #define	J_SIGSET	0x1e0
91 #endif /* __BSD_VISIBLE */
92 
93 #define	_JBLEN		0x20			/* Size in long doubles */
94 
95 /*
96  * XXX this check is wrong, since LOCORE is in the application namespace and
97  * applications shouldn't be able to affect the implementation.  One workaround
98  * would be to only check LOCORE if _KERNEL is defined, but unfortunately
99  * LOCORE is used outside of the kernel.  The best solution would be to rename
100  * LOCORE to _LOCORE, so that it can be used in userland to safely affect the
101  * implementation.
102  */
103 #ifndef LOCORE
104 
105 /*
106  * jmp_buf and sigjmp_buf are encapsulated in different structs to force
107  * compile-time diagnostics for mismatches.  The structs are the same
108  * internally to avoid some run-time errors for mismatches.
109  */
110 #if __BSD_VISIBLE || __POSIX_VISIBLE || __XSI_VISIBLE
111 struct _sigjmp_buf {
112 	long double buf[_JBLEN];
113 };
114 typedef struct _sigjmp_buf sigjmp_buf[1];
115 #endif
116 
117 struct _jmp_buf {
118 	long double buf[_JBLEN];
119 };
120 typedef struct _jmp_buf	jmp_buf[1];
121 
122 #ifdef _KERNEL
123 #ifdef CTASSERT
124 CTASSERT(sizeof(struct _jmp_buf) == 512);
125 #endif
126 #endif
127 
128 #endif /* !LOCORE */
129 
130 #endif /* !_MACHINE_SETJMP_H_ */
131