Home | History | Annotate | Line # | Download | only in x86 
      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: head/sys/cddl/dev/dtrace/x86/regset.h 277300 2015-01-17 14:44:59Z smh $
     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
     42 extern "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 #ifdef illumos
     65 #define	REG_DS		25
     66 #define	REG_ES		24
     67 
     68 #define	REG_GS		23
     69 #define	REG_FS		22
     70 #define	REG_SS		21
     71 #define	REG_RSP		20
     72 #define	REG_RFL		19
     73 #define	REG_CS		18
     74 #define	REG_RIP		17
     75 #define	REG_ERR		16
     76 #define	REG_TRAPNO	15
     77 #define	REG_RAX		14
     78 #define	REG_RCX		13
     79 #define	REG_RDX		12
     80 #define	REG_RBX		11
     81 #define	REG_RBP		10
     82 #define	REG_RSI		9
     83 #define	REG_RDI		8
     84 #define	REG_R8		7
     85 #define	REG_R9		6
     86 #define	REG_R10		5
     87 #define	REG_R11		4
     88 #define	REG_R12		3
     89 #define	REG_R13		2
     90 #define	REG_R14		1
     91 #define	REG_R15		0
     92 #else	/* !illumos */
     93 #define	REG_SS		25
     94 #define	REG_RSP		24
     95 #define	REG_RFL		23
     96 #define	REG_CS		22
     97 #define	REG_RIP		21
     98 #define	REG_DS		20
     99 #define	REG_ES		19
    100 #define	REG_ERR		18
    101 #define	REG_GS		17
    102 #define	REG_FS		16
    103 #define	REG_TRAPNO	15
    104 #define	REG_RAX		14
    105 #define	REG_RCX		13
    106 #define	REG_RDX		12
    107 #define	REG_RBX		11
    108 #define	REG_RBP		10
    109 #define	REG_RSI		9
    110 #define	REG_RDI		8
    111 #define	REG_R8		7
    112 #define	REG_R9		6
    113 #define	REG_R10		5
    114 #define	REG_R11		4
    115 #define	REG_R12		3
    116 #define	REG_R13		2
    117 #define	REG_R14		1
    118 #define	REG_R15		0
    119 #endif	/* illumos */
    120 
    121 /*
    122  * The names and offsets defined here are specified by i386 ABI suppl.
    123  */
    124 
    125 #ifdef illumos
    126 #define	SS		18	/* only stored on a privilege transition */
    127 #define	UESP		17	/* only stored on a privilege transition */
    128 #define	EFL		16
    129 #define	CS		15
    130 #define	EIP		14
    131 #define	ERR		13
    132 #define	TRAPNO		12
    133 #define	EAX		11
    134 #define	ECX		10
    135 #define	EDX		9
    136 #define	EBX		8
    137 #define	ESP		7
    138 #define	EBP		6
    139 #define	ESI		5
    140 #define	EDI		4
    141 #define	DS		3
    142 #define	ES		2
    143 #define	FS		1
    144 #define	GS		0
    145 #else	/* !illumos */
    146 #define	GS		18
    147 #define	SS		17	/* only stored on a privilege transition */
    148 #define	UESP		16	/* only stored on a privilege transition */
    149 #define	EFL		15
    150 #define	CS		14
    151 #define	EIP		13
    152 #define	ERR		12
    153 #define	TRAPNO		11
    154 #define	EAX		10
    155 #define	ECX		9
    156 #define	EDX		8
    157 #define	EBX		7
    158 #define	ESP		6
    159 #define	EBP		5
    160 #define	ESI		4
    161 #define	EDI		3
    162 #define	DS		2
    163 #define	ES		1
    164 #define	FS		0
    165 #endif	/* illumos */
    166 
    167 #define REG_PC  EIP
    168 #define REG_FP  EBP
    169 #define REG_SP  UESP
    170 #define REG_PS  EFL
    171 #define REG_R0  EAX
    172 #define REG_R1  EDX
    173 
    174 #ifdef	__cplusplus
    175 }
    176 #endif
    177 
    178 #endif	/* _REGSET_H */
    179