reg.h revision 127920 
1/*-
2 * Copyright (c) 2003 Peter Wemm.
3 * Copyright (c) 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * William Jolitz.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	from: @(#)reg.h	5.5 (Berkeley) 1/18/91
34 * $FreeBSD: head/sys/amd64/include/reg.h 127920 2004-04-05 23:55:14Z imp $
35 */
36
37#ifndef _MACHINE_REG_H_
38#define	_MACHINE_REG_H_
39
40/*
41 * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
42 */
43struct reg {
44	register_t	r_r15;
45	register_t	r_r14;
46	register_t	r_r13;
47	register_t	r_r12;
48	register_t	r_r11;
49	register_t	r_r10;
50	register_t	r_r9;
51	register_t	r_r8;
52	register_t	r_rdi;
53	register_t	r_rsi;
54	register_t	r_rbp;
55	register_t	r_rbx;
56	register_t	r_rdx;
57	register_t	r_rcx;
58	register_t	r_rax;
59	register_t	r_trapno;
60	register_t	r_err;
61	register_t	r_rip;
62	register_t	r_cs;
63	register_t	r_rflags;
64	register_t	r_rsp;
65	register_t	r_ss;
66};
67
68/*
69 * Register set accessible via /proc/$pid/fpregs.
70 */
71struct fpreg {
72	/*
73	 * XXX should get struct from fpu.h.  Here we give a slightly
74	 * simplified struct.  This may be too much detail.  Perhaps
75	 * an array of unsigned longs is best.
76	 */
77	unsigned long	fpr_env[4];
78	unsigned char	fpr_acc[8][16];
79	unsigned char	fpr_xacc[16][16];
80	unsigned long	fpr_spare[12];
81};
82
83/*
84 * Register set accessible via /proc/$pid/dbregs.
85 */
86struct dbreg {
87	unsigned long  dr[16];	/* debug registers */
88				/* Index 0-3: debug address registers */
89				/* Index 4-5: reserved */
90				/* Index 6: debug status */
91				/* Index 7: debug control */
92				/* Index 8-15: reserved */
93};
94
95#define DBREG_DR7_EXEC      0x00      /* break on execute       */
96#define DBREG_DR7_WRONLY    0x01      /* break on write         */
97#define DBREG_DR7_RDWR      0x03      /* break on read or write */
98#define DBREG_DRX(d,x) ((d)->dr[(x)]) /* reference dr0 - dr15 by
99                                         register number */
100#ifdef _KERNEL
101/*
102 * XXX these interfaces are MI, so they should be declared in a MI place.
103 */
104int	fill_regs(struct thread *, struct reg *);
105int	set_regs(struct thread *, struct reg *);
106int	fill_fpregs(struct thread *, struct fpreg *);
107int	set_fpregs(struct thread *, struct fpreg *);
108int	fill_dbregs(struct thread *, struct dbreg *);
109int	set_dbregs(struct thread *, struct dbreg *);
110#endif
111
112#endif /* !_MACHINE_REG_H_ */
113