1/*	$OpenBSD: reg.h,v 1.7 2019/07/14 05:08:26 guenther Exp $	*/
2/*	$NetBSD: reg.h,v 1.1 2003/04/26 18:39:47 fvdl 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 _MACHINE_REG_H_
39#define _MACHINE_REG_H_
40
41#include <machine/fpu.h>
42
43/*
44 * XXX
45 * The #defines aren't used in the kernel, but some user-level code still
46 * expects them.
47 */
48
49/* When referenced during a trap/exception, registers are at these offsets */
50
51#define tRDI	0
52#define tRSI	1
53#define tRDX	2
54#define tRCX	3
55#define tR8	4
56#define tR9	5
57#define tR10	6
58#define tR11	7
59#define	tR12	8
60#define	tR13	9
61#define	tR14	10
62#define	tR15	11
63#define	tRBP	12
64#define	tRBX	13
65#define	tRAX	14
66#define	tRSP	15
67#define	tRIP	16
68#define	tRFLAGS	17
69#define	tCS	18
70#define	tSS	19
71#define	tDS	20
72#define	tES	21
73#define	tFS	22
74#define	tGS	23
75
76/*
77 * Registers accessible to ptrace(2) syscall for debugger use.
78 */
79struct reg {
80	int64_t	r_rdi;
81	int64_t	r_rsi;
82	int64_t	r_rdx;
83	int64_t	r_rcx;
84	int64_t r_r8;
85	int64_t r_r9;
86	int64_t r_r10;
87	int64_t r_r11;
88	int64_t r_r12;
89	int64_t r_r13;
90	int64_t r_r14;
91	int64_t r_r15;
92	int64_t	r_rbp;
93	int64_t	r_rbx;
94	int64_t	r_rax;
95	int64_t	r_rsp;
96	int64_t	r_rip;
97	int64_t	r_rflags;
98	int64_t	r_cs;
99	int64_t	r_ss;
100	int64_t	r_ds;
101	int64_t	r_es;
102	int64_t	r_fs;
103	int64_t	r_gs;
104};
105
106struct fpreg {
107	struct fxsave64 fxstate;
108};
109
110#define fp_fcw		fxstate.fx_fcw
111#define fp_fsw		fxstate.fx_fsw
112#define fp_ftw		fxstate.fx_ftw
113#define fp_fop		fxstate.fx_fop
114#define fp_rip		fxstate.fx_rip
115#define fp_rdp		fxstate.fx_rdp
116#define fp_mxcsr	fxstate.fx_mxcsr
117#define fp_mxcsr_mask	fxstate.fx_mxcsr_mask
118#define fp_st		fxstate.fx_st
119#define fp_xmm		fxstate.fx_xmm
120
121#ifdef _KERNEL
122int check_context(const struct reg *, struct trapframe *);
123#endif
124
125#endif /* !_MACHINE_REG_H_ */
126