1 /* $OpenBSD: frame.h,v 1.8 2006/11/27 18:04:28 gwk Exp $ */
2 /* $NetBSD: frame.h,v 1.12 1995/10/11 04:20:08 mycroft Exp $ */
3
4 /*-
5 * Copyright (c) 1995 Charles M. Hannum. All rights reserved.
6 * Copyright (c) 1990 The Regents of the University of California.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * William Jolitz.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. 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 * @(#)frame.h 5.2 (Berkeley) 1/18/91
37 */
38
39 #ifndef _MACHINE_FRAME_H
40 #define _MACHINE_FRAME_H
41 #include <sys/signal.h>
42
43 /*
44 * System stack frames.
45 */
46
47 /*
48 * Exception/Trap Stack Frame
49 */
50 struct trapframe {
51 int tf_fs;
52 int tf_gs;
53 int tf_es;
54 int tf_ds;
55 int tf_edi;
56 int tf_esi;
57 int tf_ebp;
58 int tf_ebx;
59 int tf_edx;
60 int tf_ecx;
61 int tf_eax;
62 int tf_trapno;
63 /* below portion defined in 386 hardware */
64 int tf_err;
65 int tf_eip;
66 int tf_cs;
67 int tf_eflags;
68 /* below used when transitting rings (e.g. user to kernel) */
69 int tf_esp;
70 int tf_ss;
71 /* below used when switching out of VM86 mode */
72 int tf_vm86_es;
73 int tf_vm86_ds;
74 int tf_vm86_fs;
75 int tf_vm86_gs;
76 };
77
78 /*
79 * Interrupt stack frame
80 */
81 struct intrframe {
82 int if_ppl;
83 int if_fs;
84 int if_gs;
85 int if_es;
86 int if_ds;
87 int if_edi;
88 int if_esi;
89 int if_ebp;
90 int if_ebx;
91 int if_edx;
92 int if_ecx;
93 int if_eax;
94 int :32; /* for compat with trap frame - trapno */
95 int :32; /* for compat with trap frame - err */
96 /* below portion defined in 386 hardware */
97 int if_eip;
98 int if_cs;
99 int if_eflags;
100 /* below only when transitting rings (e.g. user to kernel) */
101 int if_esp;
102 int if_ss;
103 };
104
105 /*
106 * Stack frame inside cpu_switch()
107 */
108 struct switchframe {
109 int sf_ppl;
110 int sf_edi;
111 int sf_esi;
112 int sf_ebx;
113 int sf_eip;
114 };
115
116 /*
117 * Signal frame
118 */
119 struct sigframe {
120 int sf_signum;
121 siginfo_t *sf_sip;
122 struct sigcontext *sf_scp;
123 sig_t sf_handler;
124 struct sigcontext sf_sc;
125 siginfo_t sf_si;
126 void *sf_fpstate;
127 };
128 #endif