frame.h revision 66458 
1/*-
2 * Copyright (c) 2000 Doug Rabson
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$FreeBSD: head/sys/ia64/include/frame.h 66458 2000-09-29 13:46:07Z dfr $
27 */
28
29#ifndef _MACHINE_FRAME_H_
30#define	_MACHINE_FRAME_H_
31
32#include <machine/reg.h>
33
34/*
35 * Software trap, exception, and syscall frame.
36 *
37 * This is loosely based on the Linux pt_regs structure. When I
38 * understand things better, I might change it.
39 */
40struct trapframe {
41	u_int64_t		tf_cr_iip;
42	u_int64_t		tf_cr_ipsr;
43	u_int64_t		tf_cr_isr;
44	u_int64_t		tf_cr_ifa;
45	u_int64_t		tf_pr;
46	u_int64_t		tf_ar_rsc;
47	u_int64_t		tf_ar_pfs;
48	u_int64_t		tf_cr_ifs;
49	u_int64_t		tf_ar_bspstore;
50	u_int64_t		tf_ar_rnat;
51	u_int64_t		tf_ar_bsp;
52	u_int64_t		tf_ar_unat;
53	u_int64_t		tf_ar_ccv;
54	u_int64_t		tf_ar_fpsr;
55
56	u_int64_t		tf_b[8];
57
58	u_int64_t		tf_r[31];	/* don't need to save r0 */
59#define FRAME_R1		0
60#define FRAME_GP		0
61#define FRAME_R2		1
62#define FRAME_R3		2
63#define FRAME_R4		3
64#define FRAME_R5		4
65#define FRAME_R6		5
66#define FRAME_R7		6
67#define FRAME_R8		7
68#define FRAME_R9		8
69#define FRAME_R10		9
70#define FRAME_R11		10
71#define FRAME_R12		11
72#define FRAME_SP		11
73#define FRAME_R13		12
74#define FRAME_TP		12
75#define FRAME_R14		13
76#define FRAME_R15		14
77#define FRAME_R16		15
78#define FRAME_R17		16
79#define FRAME_R18		17
80#define FRAME_R19		18
81#define FRAME_R20		19
82#define FRAME_R21		20
83#define FRAME_R22		21
84#define FRAME_R23		22
85#define FRAME_R24		23
86#define FRAME_R25		24
87#define FRAME_R26		25
88#define FRAME_R27		26
89#define FRAME_R28		27
90#define FRAME_R29		28
91#define FRAME_R30		29
92#define FRAME_R31		30
93
94	u_int64_t		tf_pad1;
95
96	/*
97	 * We rely on the compiler to save/restore f2-f5 and
98	 * f16-f31. We also tell the compiler to avoid f32-f127
99	 * completely so we don't worry about them at all.
100	 */
101	struct ia64_fpreg	tf_f[10];
102#define FRAME_F6		0
103#define FRAME_F7		1
104#define FRAME_F8		2
105#define FRAME_F9		3
106#define FRAME_F10		3
107#define FRAME_F11		3
108#define FRAME_F12		3
109#define FRAME_F13		3
110#define FRAME_F14		3
111#define FRAME_F15		3
112};
113
114#endif /* _MACHINE_FRAME_H_ */
115