reg.h revision 125176 
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 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *	This product includes software developed by the University of
20 *	California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 *    may be used to endorse or promote products derived from this software
23 *    without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 *	from: @(#)reg.h	5.5 (Berkeley) 1/18/91
38 * $FreeBSD: head/sys/amd64/include/reg.h 125176 2004-01-28 23:54:31Z peter $
39 */
40
41#ifndef _MACHINE_REG_H_
42#define	_MACHINE_REG_H_
43
44/*
45 * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
46 */
47struct reg {
48	register_t	r_r15;
49	register_t	r_r14;
50	register_t	r_r13;
51	register_t	r_r12;
52	register_t	r_r11;
53	register_t	r_r10;
54	register_t	r_r9;
55	register_t	r_r8;
56	register_t	r_rdi;
57	register_t	r_rsi;
58	register_t	r_rbp;
59	register_t	r_rbx;
60	register_t	r_rdx;
61	register_t	r_rcx;
62	register_t	r_rax;
63	register_t	r_trapno;
64	register_t	r_err;
65	register_t	r_rip;
66	register_t	r_cs;
67	register_t	r_rflags;
68	register_t	r_rsp;
69	register_t	r_ss;
70};
71
72/*
73 * Register set accessible via /proc/$pid/fpregs.
74 */
75struct fpreg {
76	/*
77	 * XXX should get struct from fpu.h.  Here we give a slightly
78	 * simplified struct.  This may be too much detail.  Perhaps
79	 * an array of unsigned longs is best.
80	 */
81	unsigned long	fpr_env[4];
82	unsigned char	fpr_acc[8][16];
83	unsigned char	fpr_xacc[16][16];
84	unsigned long	fpr_spare[12];
85};
86
87/*
88 * Register set accessible via /proc/$pid/dbregs.
89 */
90struct dbreg {
91	unsigned long  dr[16];	/* debug registers */
92				/* Index 0-3: debug address registers */
93				/* Index 4-5: reserved */
94				/* Index 6: debug status */
95				/* Index 7: debug control */
96				/* Index 8-15: reserved */
97};
98
99#define DBREG_DR7_EXEC      0x00      /* break on execute       */
100#define DBREG_DR7_WRONLY    0x01      /* break on write         */
101#define DBREG_DR7_RDWR      0x03      /* break on read or write */
102#define DBREG_DRX(d,x) ((d)->dr[(x)]) /* reference dr0 - dr15 by
103                                         register number */
104#ifdef _KERNEL
105/*
106 * XXX these interfaces are MI, so they should be declared in a MI place.
107 */
108int	fill_regs(struct thread *, struct reg *);
109int	set_regs(struct thread *, struct reg *);
110int	fill_fpregs(struct thread *, struct fpreg *);
111int	set_fpregs(struct thread *, struct fpreg *);
112int	fill_dbregs(struct thread *, struct dbreg *);
113int	set_dbregs(struct thread *, struct dbreg *);
114#endif
115
116#endif /* !_MACHINE_REG_H_ */
117