1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 *
22 * $FreeBSD$
23 */
24/*
25 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
26 * Use is subject to license terms.
27 */
28
29/*	Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
30
31/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T		*/
32/*	All Rights Reserved	*/
33
34#ifndef	_REGSET_H
35#define	_REGSET_H
36
37/*
38 * #pragma ident	"@(#)regset.h	1.11	05/06/08 SMI"
39 */
40
41#ifdef __cplusplus
42extern "C" {
43#endif
44
45/*
46 * The names and offsets defined here should be specified by the
47 * AMD64 ABI suppl.
48 *
49 * We make fsbase and gsbase part of the lwp context (since they're
50 * the only way to access the full 64-bit address range via the segment
51 * registers) and thus belong here too.  However we treat them as
52 * read-only; if %fs or %gs are updated, the results of the descriptor
53 * table lookup that those updates implicitly cause will be reflected
54 * in the corresponding fsbase and/or gsbase values the next time the
55 * context can be inspected.  However it is NOT possible to override
56 * the fsbase/gsbase settings via this interface.
57 *
58 * Direct modification of the base registers (thus overriding the
59 * descriptor table base address) can be achieved with _lwp_setprivate.
60 */
61
62#define	REG_GSBASE	27
63#define	REG_FSBASE	26
64#define	REG_DS		25
65#define	REG_ES		24
66
67#define	REG_GS		23
68#define	REG_FS		22
69#define	REG_SS		21
70#define	REG_RSP		20
71#define	REG_RFL		19
72#define	REG_CS		18
73#define	REG_RIP		17
74#define	REG_ERR		16
75#define	REG_TRAPNO	15
76#define	REG_RAX		14
77#define	REG_RCX		13
78#define	REG_RDX		12
79#define	REG_RBX		11
80#define	REG_RBP		10
81#define	REG_RSI		9
82#define	REG_RDI		8
83#define	REG_R8		7
84#define	REG_R9		6
85#define	REG_R10		5
86#define	REG_R11		4
87#define	REG_R12		3
88#define	REG_R13		2
89#define	REG_R14		1
90#define	REG_R15		0
91
92/*
93 * The names and offsets defined here are specified by i386 ABI suppl.
94 */
95
96#define	SS		18	/* only stored on a privilege transition */
97#define	UESP		17	/* only stored on a privilege transition */
98#define	EFL		16
99#define	CS		15
100#define	EIP		14
101#define	ERR		13
102#define	TRAPNO		12
103#define	EAX		11
104#define	ECX		10
105#define	EDX		9
106#define	EBX		8
107#define	ESP		7
108#define	EBP		6
109#define	ESI		5
110#define	EDI		4
111#define	DS		3
112#define	ES		2
113#define	FS		1
114#define	GS		0
115
116#define REG_PC  EIP
117#define REG_FP  EBP
118#define REG_SP  UESP
119#define REG_PS  EFL
120#define REG_R0  EAX
121#define REG_R1  EDX
122
123#ifdef	__cplusplus
124}
125#endif
126
127#endif	/* _REGSET_H */
128