1 /* $NetBSD: dwarf_pro_macinfo.c,v 1.2 2014/03/09 16:58:04 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2010 Kai Wang
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include "_libdwarf.h"
30
31 __RCSID("$NetBSD: dwarf_pro_macinfo.c,v 1.2 2014/03/09 16:58:04 christos Exp $");
32 ELFTC_VCSID("Id: dwarf_pro_macinfo.c 2074 2011-10-27 03:34:33Z jkoshy ");
33
34 static int
_dwarf_add_macro(Dwarf_P_Debug dbg,int type,Dwarf_Unsigned lineno,Dwarf_Signed fileindex,char * str1,char * str2,Dwarf_Error * error)35 _dwarf_add_macro(Dwarf_P_Debug dbg, int type, Dwarf_Unsigned lineno,
36 Dwarf_Signed fileindex, char *str1, char *str2, Dwarf_Error *error)
37 {
38 Dwarf_Macro_Details *md;
39 int len;
40
41 dbg->dbgp_mdlist = realloc(dbg->dbgp_mdlist,
42 (size_t) dbg->dbgp_mdcnt + 1);
43 if (dbg->dbgp_mdlist == NULL) {
44 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
45 return (DW_DLV_ERROR);
46 }
47
48 md = &dbg->dbgp_mdlist[dbg->dbgp_mdcnt];
49 dbg->dbgp_mdcnt++;
50
51 md->dmd_offset = 0;
52 md->dmd_type = type;
53 md->dmd_lineno = lineno;
54 md->dmd_fileindex = fileindex;
55 md->dmd_macro = NULL;
56
57 if (str1 == NULL)
58 return (DW_DLV_OK);
59 else if (str2 == NULL) {
60 if ((md->dmd_macro = strdup(str1)) == NULL) {
61 dbg->dbgp_mdcnt--;
62 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
63 return (DW_DLV_ERROR);
64 }
65 return (DW_DLV_OK);
66 } else {
67 len = strlen(str1) + strlen(str2) + 2;
68 if ((md->dmd_macro = malloc(len)) == NULL) {
69 dbg->dbgp_mdcnt--;
70 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
71 return (DW_DLV_ERROR);
72 }
73 snprintf(md->dmd_macro, len, "%s %s", str1, str2);
74 return (DW_DLV_OK);
75 }
76 }
77
78 int
dwarf_def_macro(Dwarf_P_Debug dbg,Dwarf_Unsigned lineno,char * name,char * value,Dwarf_Error * error)79 dwarf_def_macro(Dwarf_P_Debug dbg, Dwarf_Unsigned lineno, char *name,
80 char *value, Dwarf_Error *error)
81 {
82
83 if (dbg == NULL || name == NULL) {
84 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
85 return (DW_DLV_ERROR);
86 }
87
88 return (_dwarf_add_macro(dbg, DW_MACINFO_define, lineno, -1, name,
89 value, error));
90 }
91
92 int
dwarf_undef_macro(Dwarf_P_Debug dbg,Dwarf_Unsigned lineno,char * name,Dwarf_Error * error)93 dwarf_undef_macro(Dwarf_P_Debug dbg, Dwarf_Unsigned lineno, char *name,
94 Dwarf_Error *error)
95 {
96
97 if (dbg == NULL || name == NULL) {
98 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
99 return (DW_DLV_ERROR);
100 }
101
102 return (_dwarf_add_macro(dbg, DW_MACINFO_undef, lineno, -1, name,
103 NULL, error));
104 }
105
106 int
dwarf_start_macro_file(Dwarf_P_Debug dbg,Dwarf_Unsigned lineno,Dwarf_Unsigned fileindex,Dwarf_Error * error)107 dwarf_start_macro_file(Dwarf_P_Debug dbg, Dwarf_Unsigned lineno,
108 Dwarf_Unsigned fileindex, Dwarf_Error *error)
109 {
110
111 if (dbg == NULL) {
112 DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
113 return (DW_DLV_ERROR);
114 }
115
116 return (_dwarf_add_macro(dbg, DW_MACINFO_start_file, lineno, fileindex,
117 NULL, NULL, error));
118 }
119
120 int
dwarf_end_macro_file(Dwarf_P_Debug dbg,Dwarf_Error * error)121 dwarf_end_macro_file(Dwarf_P_Debug dbg, Dwarf_Error *error)
122 {
123
124 if (dbg == NULL) {
125 DWARF_SET_ERROR(NULL, error, DW_DLE_ARGUMENT);
126 return (DW_DLV_ERROR);
127 }
128
129 return (_dwarf_add_macro(dbg, DW_MACINFO_end_file, 0, -1,
130 NULL, NULL, error));
131 }
132
133 int
dwarf_vendor_ext(Dwarf_P_Debug dbg,Dwarf_Unsigned constant,char * string,Dwarf_Error * error)134 dwarf_vendor_ext(Dwarf_P_Debug dbg, Dwarf_Unsigned constant, char *string,
135 Dwarf_Error *error)
136 {
137
138 if (dbg == NULL || string == NULL) {
139 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
140 return (DW_DLV_ERROR);
141 }
142
143 return (_dwarf_add_macro(dbg, DW_MACINFO_vendor_ext, constant, -1,
144 string, NULL, error));
145 }
146