1 /* $OpenBSD: reg.h,v 1.6 2005/04/03 20:21:44 kettenis Exp $ */
2 /* $NetBSD: reg.h,v 1.14 1995/10/11 04:20:24 mycroft Exp $ */
3
4 /*-
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * William Jolitz.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)reg.h 5.5 (Berkeley) 1/18/91
36 */
37
38 #ifndef _I386_REG_H_
39 #define _I386_REG_H_
40
41 /*
42 * Location of the users' stored
43 * registers within appropriate frame of 'trap' and 'syscall', relative to
44 * base of stack frame.
45 * Normal usage is u.u_ar0[XX] in kernel.
46 */
47
48 /* When referenced during a trap/exception, registers are at these offsets */
49
50 #define tES (0)
51 #define tDS (1)
52 #define tEDI (2)
53 #define tESI (3)
54 #define tEBP (4)
55 #define tEBX (5)
56 #define tEDX (6)
57 #define tECX (7)
58 #define tEAX (8)
59
60 #define tEIP (11)
61 #define tCS (12)
62 #define tEFLAGS (13)
63 #define tESP (14)
64 #define tSS (15)
65
66 /*
67 * Registers accessible to ptrace(2) syscall for debugger
68 * The machine-dependent code for PT_{SET,GET}REGS needs to
69 * use whichever order, defined above, is correct, so that it
70 * is all invisible to the user.
71 */
72 struct reg {
73 int r_eax;
74 int r_ecx;
75 int r_edx;
76 int r_ebx;
77 int r_esp;
78 int r_ebp;
79 int r_esi;
80 int r_edi;
81 int r_eip;
82 int r_eflags;
83 int r_cs;
84 int r_ss;
85 int r_ds;
86 int r_es;
87 int r_fs;
88 int r_gs;
89 };
90
91 struct fpreg {
92 /*
93 * XXX
94 * Fill this in with real info.
95 */
96 char __data[116];
97 };
98
99 struct xmmregs {
100 char __data[512];
101 };
102
103 #endif /* !_I386_REG_H_ */