xref: /illumos-gate/usr/src/cmd/mdb/common/mdb/mdb_ctf.h (revision cce402975996597dc49946237271dffe2b698148)
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 #ifndef	_MDB_CTF_H
27 #define	_MDB_CTF_H
28 
29 #include <mdb/mdb_target.h>
30 #include <libctf.h>
31 
32 #ifdef _MDB
33 #include <sys/machelf.h>
34 #endif
35 
36 /*
37  * The following directive tells the mapfile generator that prototypes and
38  * declarations ending with an "Internal" comment should be excluded from the
39  * mapfile.
40  *
41  * MAPFILE: exclude "Internal"
42  */
43 
44 #ifdef	__cplusplus
45 extern "C" {
46 #endif
47 
48 typedef struct mdb_ctf_id {
49 	void *_opaque[2];
50 } mdb_ctf_id_t;
51 
52 typedef struct mdb_ctf_funcinfo {
53 	mdb_ctf_id_t mtf_return;	/* function return type */
54 	uint_t mtf_argc;		/* number of arguments */
55 	uint_t mtf_flags;		/* function attributes (see libctf.h) */
56 	uint_t mtf_symidx;		/* for ctf_func_args */
57 } mdb_ctf_funcinfo_t;
58 
59 typedef struct mdb_ctf_arinfo {
60 	mdb_ctf_id_t mta_contents;	/* type of array conents */
61 	mdb_ctf_id_t mta_index;		/* type of array index */
62 	uint_t mta_nelems;		/* number of elements */
63 } mdb_ctf_arinfo_t;
64 
65 typedef int mdb_ctf_visit_f(const char *, mdb_ctf_id_t, mdb_ctf_id_t, ulong_t,
66     int, void *);
67 typedef int mdb_ctf_member_f(const char *, mdb_ctf_id_t, ulong_t, void *);
68 typedef int mdb_ctf_enum_f(const char *, int, void *);
69 typedef int mdb_ctf_type_f(mdb_ctf_id_t, void *);
70 
71 extern int mdb_ctf_enabled_by_object(const char *);
72 
73 extern int mdb_ctf_lookup_by_name(const char *, mdb_ctf_id_t *);
74 extern int mdb_ctf_lookup_by_addr(uintptr_t, mdb_ctf_id_t *);
75 
76 extern int mdb_ctf_module_lookup(const char *, mdb_ctf_id_t *);
77 
78 extern int mdb_ctf_func_info(const GElf_Sym *, const mdb_syminfo_t *,
79     mdb_ctf_funcinfo_t *);
80 extern int mdb_ctf_func_args(const mdb_ctf_funcinfo_t *, uint_t,
81     mdb_ctf_id_t *);
82 
83 extern void mdb_ctf_type_invalidate(mdb_ctf_id_t *);
84 extern int mdb_ctf_type_valid(mdb_ctf_id_t);
85 extern int mdb_ctf_type_cmp(mdb_ctf_id_t, mdb_ctf_id_t);
86 
87 extern int mdb_ctf_type_resolve(mdb_ctf_id_t, mdb_ctf_id_t *);
88 extern char *mdb_ctf_type_name(mdb_ctf_id_t, char *, size_t);
89 extern ssize_t mdb_ctf_type_size(mdb_ctf_id_t);
90 extern int mdb_ctf_type_kind(mdb_ctf_id_t);
91 extern int mdb_ctf_type_reference(const mdb_ctf_id_t, mdb_ctf_id_t *);
92 extern int mdb_ctf_type_encoding(mdb_ctf_id_t, ctf_encoding_t *);
93 extern int mdb_ctf_type_visit(mdb_ctf_id_t, mdb_ctf_visit_f *, void *);
94 
95 extern int mdb_ctf_array_info(mdb_ctf_id_t, mdb_ctf_arinfo_t *);
96 extern const char *mdb_ctf_enum_name(mdb_ctf_id_t, int);
97 
98 extern int mdb_ctf_member_iter(mdb_ctf_id_t, mdb_ctf_member_f *, void *);
99 extern int mdb_ctf_enum_iter(mdb_ctf_id_t, mdb_ctf_enum_f *, void *);
100 extern int mdb_ctf_type_iter(const char *, mdb_ctf_type_f *, void *);
101 
102 /* utility stuff */
103 extern ctf_id_t mdb_ctf_type_id(mdb_ctf_id_t);
104 extern ctf_file_t *mdb_ctf_type_file(mdb_ctf_id_t);
105 
106 
107 extern int mdb_ctf_member_info(mdb_ctf_id_t, const char *,
108     ulong_t *, mdb_ctf_id_t *);
109 extern int mdb_ctf_offsetof(mdb_ctf_id_t, const char *, ulong_t *);
110 extern int mdb_ctf_num_members(mdb_ctf_id_t);
111 
112 extern ssize_t mdb_ctf_offset_to_name(mdb_ctf_id_t, ulong_t, char *, size_t,
113     int, mdb_ctf_id_t *, ulong_t *);
114 
115 #define	MDB_CTF_VREAD_IGNORE_GROW	0x01
116 #define	MDB_CTF_VREAD_IGNORE_ABSENT	0x02
117 #define	MDB_CTF_VREAD_IGNORE_UNIONS	0x04
118 
119 #define	MDB_CTF_VREAD_IGNORE_ALL	0x07
120 
121 extern int mdb_ctf_vread(void *, const char *, uintptr_t, uint_t);
122 extern int mdb_ctf_readsym(void *, const char *, const char *, uint_t);
123 
124 #ifdef _MDB
125 
126 extern ctf_file_t *mdb_ctf_open(const char *, int *);		/* Internal */
127 extern ctf_file_t *mdb_ctf_bufopen(const void *, size_t,	/* Internal */
128     const void *, Shdr *, const void *, Shdr *, int *);
129 extern void mdb_ctf_close(ctf_file_t *fp);			/* Internal */
130 
131 #endif
132 
133 #ifdef	__cplusplus
134 }
135 #endif
136 
137 #endif	/* _MDB_CTF_H */
138