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 uint8_t ftmt_installed:1;
61 uint8_t ftmt_retired:1;
62} fasttrap_machtp_t;
63
64#define ftt_instr ftt_mtp.ftmt_instr
65#define ftt_ripmode ftt_mtp.ftmt_ripmode
66#define ftt_modrm ftt_mtp.ftmt_modrm
67#define ftt_size ftt_mtp.ftmt_size
68#define ftt_type ftt_mtp.ftmt_type
69#define ftt_code ftt_mtp.ftmt_code
70#define ftt_base ftt_mtp.ftmt_base
71#define ftt_index ftt_mtp.ftmt_index
72#define ftt_scale ftt_mtp.ftmt_scale
73#define ftt_segment ftt_mtp.ftmt_segment
74#define ftt_dest ftt_mtp.ftmt_dest
75#define ftt_installed ftt_mtp.ftmt_installed
76#define ftt_retired ftt_mtp.ftmt_retired
77
78
79#define FASTTRAP_T_COMMON 0x00 /* common case -- no emulation */
80#define FASTTRAP_T_JCC 0x01 /* near and far conditional jumps */
81#define FASTTRAP_T_LOOP 0x02 /* loop instructions */
82#define FASTTRAP_T_JCXZ 0x03 /* jump if %ecx/%rcx is zero */
83#define FASTTRAP_T_JMP 0x04 /* relative jump */
84#define FASTTRAP_T_CALL 0x05 /* near call (and link) */
85#define FASTTRAP_T_RET 0x06 /* ret */
86#define FASTTRAP_T_RET16 0x07 /* ret <imm16> */
87
88/*
89 * For performance rather than correctness.
90 */
91#define FASTTRAP_T_PUSHL_EBP 0x10 /* pushl %ebp (for function entry) */
92#define FASTTRAP_T_NOP 0x11 /* nop */
93
94#define FASTTRAP_RIP_1 0x1
95#define FASTTRAP_RIP_2 0x2
96#define FASTTRAP_RIP_X 0x4
97
98/*
99 * Segment values.
100 */
101#define FASTTRAP_SEG_NONE 0
102#define FASTTRAP_SEG_CS 1
103#define FASTTRAP_SEG_DS 2
104#define FASTTRAP_SEG_ES 3
105#define FASTTRAP_SEG_FS 4
106#define FASTTRAP_SEG_GS 5
107#define FASTTRAP_SEG_SS 6
108
109#define FASTTRAP_RETURN_AFRAMES 6
110#define FASTTRAP_ENTRY_AFRAMES 5
111#define FASTTRAP_OFFSET_AFRAMES 5
112
113#ifdef __cplusplus
114}
115#endif
116
117#endif /* _FASTTRAP_ISA_H */
118