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 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*	Copyright (c) 1988 AT&T	*/
27 /*	  All Rights Reserved  	*/
28 
29 
30 #ifndef _DIS_TABLES_H
31 #define	_DIS_TABLES_H
32 
33 /*
34  * Constants and prototypes for the IA32 disassembler backend.  See dis_tables.c
35  * for usage information and documentation.
36  */
37 
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41 
42 #include <sys/types.h>
43 #include <sys/inttypes.h>
44 #include <sys/param.h>
45 
46 /*
47  * values for cpu mode
48  */
49 #define	SIZE16	1
50 #define	SIZE32	2
51 #define	SIZE64	3
52 
53 #define	OPLEN	256
54 #define	PFIXLEN	  8
55 #define	NCPS	20	/* number of chars per symbol	*/
56 
57 /*
58  * data structures that must be provided to dtrace_dis86()
59  */
60 typedef struct d86opnd {
61 	char		d86_opnd[OPLEN];	/* symbolic rep of operand */
62 	char		d86_prefix[PFIXLEN];	/* any prefix string or "" */
63 	uint_t		d86_mode;		/* mode for immediate */
64 	uint_t		d86_value_size;		/* size in bytes of d86_value */
65 	uint64_t	d86_value;		/* immediate value of opnd */
66 } d86opnd_t;
67 
68 typedef struct dis86 {
69 	uint_t		d86_mode;
70 	uint_t		d86_error;
71 	uint_t		d86_len;		/* instruction length */
72 	int		d86_rmindex;		/* index of modrm byte or -1 */
73 	uint_t		d86_memsize;		/* size of memory referenced */
74 	char		d86_bytes[16];		/* bytes of instruction */
75 	char		d86_mnem[OPLEN];
76 	uint_t		d86_numopnds;
77 	uint_t		d86_rex_prefix;		/* value of REX prefix if !0 */
78 	char		*d86_seg_prefix;	/* segment prefix, if any */
79 	uint_t		d86_opnd_size;
80 	uint_t		d86_addr_size;
81 	uint_t		d86_got_modrm;
82 	uint_t		d86_vsib;		/* Has a VSIB */
83 	struct d86opnd	d86_opnd[4];		/* up to 4 operands */
84 	int		(*d86_check_func)(void *);
85 	int		(*d86_get_byte)(void *);
86 #ifdef DIS_TEXT
87 	int		(*d86_sym_lookup)(void *, uint64_t, char *, size_t);
88 	int		(*d86_sprintf_func)(char *, size_t, const char *, ...);
89 	int		d86_flags;
90 	uint_t		d86_imm_bytes;
91 #endif
92 	void		*d86_data;
93 } dis86_t;
94 
95 extern int dtrace_disx86(dis86_t *x, uint_t cpu_mode);
96 
97 #define	DIS_F_OCTAL	0x1	/* Print all numbers in octal */
98 #define	DIS_F_NOIMMSYM	0x2	/* Don't print symbols for immediates (.o) */
99 
100 #ifdef DIS_TEXT
101 extern void dtrace_disx86_str(dis86_t *x, uint_t cpu_mode, uint64_t pc,
102     char *buf, size_t len);
103 #endif
104 
105 #ifdef __cplusplus
106 }
107 #endif
108 
109 #endif /* _DIS_TABLES_H */
110