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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#ifndef	_FASTTRAP_ISA_H
27#define	_FASTTRAP_ISA_H
28
29/*
30 * #pragma ident	"@(#)fasttrap_isa.h	1.6	06/09/19 SMI"
31 */
32
33#include <sys/types.h>
34#include <stdint.h>
35
36#ifdef	__cplusplus
37extern "C" {
38#endif
39
40#define	FASTTRAP_MAX_INSTR_SIZE		15
41
42#define	FASTTRAP_INSTR			0xcc
43
44#define	FASTTRAP_SUNWDTRACE_SIZE	64
45
46typedef	uint8_t		fasttrap_instr_t;
47
48typedef struct fasttrap_machtp {
49	uint8_t		ftmt_instr[FASTTRAP_MAX_INSTR_SIZE]; /* orig. instr. */
50	uint8_t		ftmt_size;	/* instruction size */
51	uint8_t		ftmt_ripmode;	/* %rip-relative handling mode */
52	uint8_t		ftmt_modrm;	/* saved modrm byte */
53	uint8_t		ftmt_type;	/* emulation type */
54	uint8_t		ftmt_code;	/* branch condition */
55	uint8_t		ftmt_base;	/* branch base */
56	uint8_t		ftmt_index;	/* branch index */
57	uint8_t		ftmt_scale;	/* branch scale */
58	uint8_t		ftmt_segment;	/* segment for memory accesses */
59	user_addr_t	ftmt_dest;	/* destination of control flow */
60} fasttrap_machtp_t;
61
62#define	ftt_instr	ftt_mtp.ftmt_instr
63#define	ftt_ripmode	ftt_mtp.ftmt_ripmode
64#define	ftt_modrm	ftt_mtp.ftmt_modrm
65#define	ftt_size	ftt_mtp.ftmt_size
66#define	ftt_type	ftt_mtp.ftmt_type
67#define	ftt_code	ftt_mtp.ftmt_code
68#define	ftt_base	ftt_mtp.ftmt_base
69#define	ftt_index	ftt_mtp.ftmt_index
70#define	ftt_scale	ftt_mtp.ftmt_scale
71#define	ftt_segment	ftt_mtp.ftmt_segment
72#define	ftt_dest	ftt_mtp.ftmt_dest
73
74#define	FASTTRAP_T_COMMON	0x00	/* common case -- no emulation */
75#define	FASTTRAP_T_JCC		0x01	/* near and far conditional jumps */
76#define	FASTTRAP_T_LOOP		0x02	/* loop instructions */
77#define	FASTTRAP_T_JCXZ		0x03	/* jump if %ecx/%rcx is zero */
78#define	FASTTRAP_T_JMP		0x04	/* relative jump */
79#define	FASTTRAP_T_CALL		0x05	/* near call (and link) */
80#define	FASTTRAP_T_RET		0x06	/* ret */
81#define	FASTTRAP_T_RET16	0x07	/* ret <imm16> */
82
83/*
84 * For performance rather than correctness.
85 */
86#define	FASTTRAP_T_PUSHL_EBP	0x10	/* pushl %ebp (for function entry) */
87#define	FASTTRAP_T_NOP		0x11	/* nop */
88
89#define	FASTTRAP_RIP_1		0x1
90#define	FASTTRAP_RIP_2		0x2
91#define	FASTTRAP_RIP_X		0x4
92
93/*
94 * Segment values.
95 */
96#define	FASTTRAP_SEG_NONE		0
97#define	FASTTRAP_SEG_CS			1
98#define	FASTTRAP_SEG_DS			2
99#define	FASTTRAP_SEG_ES			3
100#define	FASTTRAP_SEG_FS			4
101#define	FASTTRAP_SEG_GS			5
102#define	FASTTRAP_SEG_SS			6
103
104#define	FASTTRAP_RETURN_AFRAMES		6
105#define	FASTTRAP_ENTRY_AFRAMES		5
106#define	FASTTRAP_OFFSET_AFRAMES		5
107
108#ifdef	__cplusplus
109}
110#endif
111
112#endif	/* _FASTTRAP_ISA_H */
113