frame.h revision 48621 
1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
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 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	from: @(#)frame.h	5.2 (Berkeley) 1/18/91
37 *	$Id: frame.h,v 1.17 1999/05/11 16:29:01 luoqi Exp $
38 */
39
40#ifndef _MACHINE_FRAME_H_
41#define _MACHINE_FRAME_H_ 1
42
43#include <sys/signal.h>
44
45/*
46 * System stack frames.
47 */
48
49/*
50 * Exception/Trap Stack Frame
51 */
52
53struct trapframe {
54	int	tf_fs;
55	int	tf_es;
56	int	tf_ds;
57	int	tf_edi;
58	int	tf_esi;
59	int	tf_ebp;
60	int	tf_isp;
61	int	tf_ebx;
62	int	tf_edx;
63	int	tf_ecx;
64	int	tf_eax;
65	int	tf_trapno;
66	/* below portion defined in 386 hardware */
67	int	tf_err;
68	int	tf_eip;
69	int	tf_cs;
70	int	tf_eflags;
71	/* below only when crossing rings (e.g. user to kernel) */
72	int	tf_esp;
73	int	tf_ss;
74};
75
76/* Superset of trap frame, for traps from virtual-8086 mode */
77
78struct trapframe_vm86 {
79	int	tf_fs;
80	int	tf_es;
81	int	tf_ds;
82	int	tf_edi;
83	int	tf_esi;
84	int	tf_ebp;
85	int	tf_isp;
86	int	tf_ebx;
87	int	tf_edx;
88	int	tf_ecx;
89	int	tf_eax;
90	int	tf_trapno;
91	/* below portion defined in 386 hardware */
92	int	tf_err;
93	int	tf_eip;
94	int	tf_cs;
95	int	tf_eflags;
96	/* below only when crossing rings (e.g. user to kernel) */
97	int	tf_esp;
98	int	tf_ss;
99	/* below only when switching out of VM86 mode */
100	int	tf_vm86_es;
101	int	tf_vm86_ds;
102	int	tf_vm86_fs;
103	int	tf_vm86_gs;
104};
105
106/* Interrupt stack frame */
107
108struct intrframe {
109	int	if_vec;
110	int	if_ppl;
111	int	if_fs;
112	int	if_es;
113	int	if_ds;
114	int	if_edi;
115	int	if_esi;
116	int	if_ebp;
117	int	:32;
118	int	if_ebx;
119	int	if_edx;
120	int	if_ecx;
121	int	if_eax;
122	int	:32;		/* for compat with trap frame - trapno */
123	int	:32;		/* for compat with trap frame - err */
124	/* below portion defined in 386 hardware */
125	int	if_eip;
126	int	if_cs;
127	int	if_eflags;
128	/* below only when crossing rings (e.g. user to kernel) */
129	int	if_esp;
130	int	if_ss;
131};
132
133/* frame of clock (same as interrupt frame) */
134
135struct clockframe {
136	int	cf_vec;
137	int	cf_ppl;
138	int	cf_fs;
139	int	cf_es;
140	int	cf_ds;
141	int	cf_edi;
142	int	cf_esi;
143	int	cf_ebp;
144	int	:32;
145	int	cf_ebx;
146	int	cf_edx;
147	int	cf_ecx;
148	int	cf_eax;
149	int	:32;		/* for compat with trap frame - trapno */
150	int	:32;		/* for compat with trap frame - err */
151	/* below portion defined in 386 hardware */
152	int	cf_eip;
153	int	cf_cs;
154	int	cf_eflags;
155	/* below only when crossing rings (e.g. user to kernel) */
156	int	cf_esp;
157	int	cf_ss;
158};
159
160/*
161 * Signal frame, arguments passed to application signal handlers.
162 */
163struct sigframe {
164	/*
165	 * The first three members may be used by applications.
166	 */
167
168	register_t sf_signum;
169
170	/*
171	 * Either 'int' for old-style FreeBSD handler or 'siginfo_t *'
172	 * pointing to sf_siginfo for SA_SIGINFO handlers.
173	 */
174	register_t sf_arg2;
175
176	/* Points to sf_siginfo.si_sc. */
177	register_t sf_scp;
178
179	/*
180	 * The following arguments are not constrained  by the
181	 * function call protocol.
182	 * Applications are not supposed to access these members,
183	 * except using the pointers we provide in the first three
184	 * arguments.
185	 */
186	char    *sf_addr;
187	union {
188		__siginfohandler_t *sf_action;
189		__sighandler_t     *sf_handler;
190	} sf_ahu;
191
192	/* In the SA_SIGINFO case, sf_arg2 points here. */
193	siginfo_t  sf_siginfo;
194};
195
196int	kdb_trap __P((int, int, struct trapframe *));
197extern  int (*pmath_emulate) __P((struct trapframe *));
198
199#define	INTR_TO_TRAPFRAME(frame) ((struct trapframe *)&(frame)->if_fs)
200
201#endif /* _MACHINE_FRAME_H_ */
202