1 /* $NetBSD: dwarf_pro_lineno.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_lineno.c,v 1.2 2014/03/09 16:58:04 christos Exp $");
32 ELFTC_VCSID("Id: dwarf_pro_lineno.c 2973 2013-12-23 06:46:16Z kaiwang27 ");
33
34 Dwarf_Unsigned
dwarf_add_line_entry(Dwarf_P_Debug dbg,Dwarf_Unsigned file,Dwarf_Addr off,Dwarf_Unsigned lineno,Dwarf_Signed column,Dwarf_Bool is_stmt,Dwarf_Bool basic_block,Dwarf_Error * error)35 dwarf_add_line_entry(Dwarf_P_Debug dbg, Dwarf_Unsigned file,
36 Dwarf_Addr off, Dwarf_Unsigned lineno, Dwarf_Signed column,
37 Dwarf_Bool is_stmt, Dwarf_Bool basic_block, Dwarf_Error *error)
38 {
39 Dwarf_LineInfo li;
40 Dwarf_Line ln;
41
42 if (dbg == NULL) {
43 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
44 return (DW_DLV_NOCOUNT);
45 }
46
47 li = dbg->dbgp_lineinfo;
48
49 ln = STAILQ_LAST(&li->li_lnlist, _Dwarf_Line, ln_next);
50
51 if (ln == NULL || ln->ln_addr > off) {
52 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
53 return (DW_DLV_NOCOUNT);
54 }
55
56 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
57 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
58 return (DW_DLV_NOCOUNT);
59 }
60 ln->ln_li = li;
61 ln->ln_addr = off;
62 ln->ln_symndx = 0;
63 ln->ln_fileno = file;
64 ln->ln_lineno = lineno;
65 ln->ln_column = column;
66 ln->ln_bblock = basic_block != 0;
67 ln->ln_stmt = is_stmt != 0;
68 ln->ln_endseq = 0;
69 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
70 li->li_lnlen++;
71
72 return (DW_DLV_OK);
73 }
74
75 Dwarf_Unsigned
dwarf_lne_set_address(Dwarf_P_Debug dbg,Dwarf_Addr offs,Dwarf_Unsigned symndx,Dwarf_Error * error)76 dwarf_lne_set_address(Dwarf_P_Debug dbg, Dwarf_Addr offs, Dwarf_Unsigned symndx,
77 Dwarf_Error *error)
78 {
79 Dwarf_LineInfo li;
80 Dwarf_Line ln;
81
82 if (dbg == NULL || symndx == 0) {
83 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
84 return (DW_DLV_NOCOUNT);
85 }
86
87 li = dbg->dbgp_lineinfo;
88
89 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
90 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
91 return (DW_DLV_NOCOUNT);
92 }
93 ln->ln_li = li;
94 ln->ln_addr = offs;
95 ln->ln_symndx = symndx;
96 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
97 li->li_lnlen++;
98
99 return (DW_DLV_OK);
100 }
101
102 Dwarf_Unsigned
dwarf_lne_end_sequence(Dwarf_P_Debug dbg,Dwarf_Addr addr,Dwarf_Error * error)103 dwarf_lne_end_sequence(Dwarf_P_Debug dbg, Dwarf_Addr addr, Dwarf_Error *error)
104 {
105 Dwarf_LineInfo li;
106 Dwarf_Line ln;
107
108 if (dbg == NULL) {
109 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
110 return (DW_DLV_NOCOUNT);
111 }
112
113 li = dbg->dbgp_lineinfo;
114
115 ln = STAILQ_LAST(&li->li_lnlist, _Dwarf_Line, ln_next);
116 if (ln && ln->ln_addr >= addr) {
117 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
118 return (DW_DLV_NOCOUNT);
119 }
120
121 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
122 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
123 return (DW_DLV_NOCOUNT);
124 }
125 ln->ln_li = li;
126 ln->ln_addr = addr;
127 ln->ln_endseq = 1;
128 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
129 li->li_lnlen++;
130
131 return (DW_DLV_OK);
132 }
133
134 Dwarf_Unsigned
dwarf_add_directory_decl(Dwarf_P_Debug dbg,char * name,Dwarf_Error * error)135 dwarf_add_directory_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Error *error)
136 {
137 Dwarf_LineInfo li;
138
139 if (dbg == NULL || name == NULL || strlen(name) == 0) {
140 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
141 return (DW_DLV_NOCOUNT);
142 }
143
144 li = dbg->dbgp_lineinfo;
145
146 li->li_incdirs = realloc(li->li_incdirs, (li->li_inclen + 1) *
147 sizeof(char *));
148 if (li->li_incdirs == NULL) {
149 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
150 return (DW_DLV_NOCOUNT);
151 }
152 if ((li->li_incdirs[li->li_inclen] = strdup(name)) == NULL) {
153 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
154 return (DW_DLV_NOCOUNT);
155 }
156
157 return (++li->li_inclen);
158 }
159
160 Dwarf_Unsigned
dwarf_add_file_decl(Dwarf_P_Debug dbg,char * name,Dwarf_Unsigned dirndx,Dwarf_Unsigned mtime,Dwarf_Unsigned size,Dwarf_Error * error)161 dwarf_add_file_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Unsigned dirndx,
162 Dwarf_Unsigned mtime, Dwarf_Unsigned size, Dwarf_Error *error)
163 {
164 Dwarf_LineInfo li;
165 Dwarf_LineFile lf;
166
167 if (dbg == NULL || name == NULL || strlen(name) == 0) {
168 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
169 return (DW_DLV_NOCOUNT);
170 }
171
172 li = dbg->dbgp_lineinfo;
173
174 if ((lf = malloc(sizeof(struct _Dwarf_LineFile))) == NULL) {
175 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
176 return (DW_DLE_MEMORY);
177 }
178
179 if ((lf->lf_fname = strdup(name)) == NULL) {
180 free(lf);
181 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
182 return (DW_DLE_MEMORY);
183 }
184 lf->lf_dirndx = dirndx;
185 lf->lf_mtime = mtime;
186 lf->lf_size = size;
187 STAILQ_INSERT_TAIL(&li->li_lflist, lf, lf_next);
188
189 return (++li->li_lflen);
190 }
191