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 * $FreeBSD: releng/5.0/sys/i386/include/frame.h 92761 2002-03-20 05:48:58Z alfred $
38 */
39
40 #ifndef _MACHINE_FRAME_H_
41 #define _MACHINE_FRAME_H_ 1
42
43 /*
44 * System stack frames.
45 */
46
47 /*
48 * Exception/Trap Stack Frame
49 */
50
51 struct trapframe {
52 int tf_fs;
53 int tf_es;
54 int tf_ds;
55 int tf_edi;
56 int tf_esi;
57 int tf_ebp;
58 int tf_isp;
59 int tf_ebx;
60 int tf_edx;
61 int tf_ecx;
62 int tf_eax;
63 int tf_trapno;
64 /* below portion defined in 386 hardware */
65 int tf_err;
66 int tf_eip;
67 int tf_cs;
68 int tf_eflags;
69 /* below only when crossing rings (e.g. user to kernel) */
70 int tf_esp;
71 int tf_ss;
72 };
73
74 /* Superset of trap frame, for traps from virtual-8086 mode */
75
76 struct trapframe_vm86 {
77 int tf_fs;
78 int tf_es;
79 int tf_ds;
80 int tf_edi;
81 int tf_esi;
82 int tf_ebp;
83 int tf_isp;
84 int tf_ebx;
85 int tf_edx;
86 int tf_ecx;
87 int tf_eax;
88 int tf_trapno;
89 /* below portion defined in 386 hardware */
90 int tf_err;
91 int tf_eip;
92 int tf_cs;
93 int tf_eflags;
94 /* below only when crossing rings (e.g. user to kernel) */
95 int tf_esp;
96 int tf_ss;
97 /* below only when switching out of VM86 mode */
98 int tf_vm86_es;
99 int tf_vm86_ds;
100 int tf_vm86_fs;
101 int tf_vm86_gs;
102 };
103
104 /* Interrupt stack frame */
105
106 struct intrframe {
107 int if_vec;
108 int if_fs;
109 int if_es;
110 int if_ds;
111 int if_edi;
112 int if_esi;
113 int if_ebp;
114 int :32;
115 int if_ebx;
116 int if_edx;
117 int if_ecx;
118 int if_eax;
119 int :32; /* for compat with trap frame - trapno */
120 int :32; /* for compat with trap frame - err */
121 /* below portion defined in 386 hardware */
122 int if_eip;
123 int if_cs;
124 int if_eflags;
125 /* below only when crossing rings (e.g. user to kernel) */
126 int if_esp;
127 int if_ss;
128 };
129
130 /* frame of clock (same as interrupt frame) */
131
132 struct clockframe {
133 int cf_vec;
134 int cf_fs;
135 int cf_es;
136 int cf_ds;
137 int cf_edi;
138 int cf_esi;
139 int cf_ebp;
140 int :32;
141 int cf_ebx;
142 int cf_edx;
143 int cf_ecx;
144 int cf_eax;
145 int :32; /* for compat with trap frame - trapno */
146 int :32; /* for compat with trap frame - err */
147 /* below portion defined in 386 hardware */
148 int cf_eip;
149 int cf_cs;
150 int cf_eflags;
151 /* below only when crossing rings (e.g. user to kernel) */
152 int cf_esp;
153 int cf_ss;
154 };
155
156 int kdb_trap(int, int, struct trapframe *);
157 extern int (*pmath_emulate)(struct trapframe *);
158
159 #define INTR_TO_TRAPFRAME(frame) ((struct trapframe *)&(frame)->if_fs)
160
161 #endif /* _MACHINE_FRAME_H_ */
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