1 /*-
2 * Copyright (c) 2010 Kai Wang
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include "_libdwarf.h"
28
29 ELFTC_VCSID("$Id: dwarf_pro_lineno.c 2973 2013-12-23 06:46:16Z kaiwang27 $");
30
31 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)32 dwarf_add_line_entry(Dwarf_P_Debug dbg, Dwarf_Unsigned file,
33 Dwarf_Addr off, Dwarf_Unsigned lineno, Dwarf_Signed column,
34 Dwarf_Bool is_stmt, Dwarf_Bool basic_block, Dwarf_Error *error)
35 {
36 Dwarf_LineInfo li;
37 Dwarf_Line ln;
38
39 if (dbg == NULL) {
40 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
41 return (DW_DLV_NOCOUNT);
42 }
43
44 li = dbg->dbgp_lineinfo;
45
46 ln = STAILQ_LAST(&li->li_lnlist, _Dwarf_Line, ln_next);
47
48 if (ln == NULL || ln->ln_addr > off) {
49 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
50 return (DW_DLV_NOCOUNT);
51 }
52
53 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
54 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
55 return (DW_DLV_NOCOUNT);
56 }
57 ln->ln_li = li;
58 ln->ln_addr = off;
59 ln->ln_symndx = 0;
60 ln->ln_fileno = file;
61 ln->ln_lineno = lineno;
62 ln->ln_column = column;
63 ln->ln_bblock = basic_block != 0;
64 ln->ln_stmt = is_stmt != 0;
65 ln->ln_endseq = 0;
66 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
67 li->li_lnlen++;
68
69 return (DW_DLV_OK);
70 }
71
72 Dwarf_Unsigned
dwarf_lne_set_address(Dwarf_P_Debug dbg,Dwarf_Addr offs,Dwarf_Unsigned symndx,Dwarf_Error * error)73 dwarf_lne_set_address(Dwarf_P_Debug dbg, Dwarf_Addr offs, Dwarf_Unsigned symndx,
74 Dwarf_Error *error)
75 {
76 Dwarf_LineInfo li;
77 Dwarf_Line ln;
78
79 if (dbg == NULL || symndx == 0) {
80 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
81 return (DW_DLV_NOCOUNT);
82 }
83
84 li = dbg->dbgp_lineinfo;
85
86 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
87 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
88 return (DW_DLV_NOCOUNT);
89 }
90 ln->ln_li = li;
91 ln->ln_addr = offs;
92 ln->ln_symndx = symndx;
93 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
94 li->li_lnlen++;
95
96 return (DW_DLV_OK);
97 }
98
99 Dwarf_Unsigned
dwarf_lne_end_sequence(Dwarf_P_Debug dbg,Dwarf_Addr addr,Dwarf_Error * error)100 dwarf_lne_end_sequence(Dwarf_P_Debug dbg, Dwarf_Addr addr, Dwarf_Error *error)
101 {
102 Dwarf_LineInfo li;
103 Dwarf_Line ln;
104
105 if (dbg == NULL) {
106 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
107 return (DW_DLV_NOCOUNT);
108 }
109
110 li = dbg->dbgp_lineinfo;
111
112 ln = STAILQ_LAST(&li->li_lnlist, _Dwarf_Line, ln_next);
113 if (ln && ln->ln_addr >= addr) {
114 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
115 return (DW_DLV_NOCOUNT);
116 }
117
118 if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
119 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
120 return (DW_DLV_NOCOUNT);
121 }
122 ln->ln_li = li;
123 ln->ln_addr = addr;
124 ln->ln_endseq = 1;
125 STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
126 li->li_lnlen++;
127
128 return (DW_DLV_OK);
129 }
130
131 Dwarf_Unsigned
dwarf_add_directory_decl(Dwarf_P_Debug dbg,char * name,Dwarf_Error * error)132 dwarf_add_directory_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Error *error)
133 {
134 Dwarf_LineInfo li;
135
136 if (dbg == NULL || name == NULL || strlen(name) == 0) {
137 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
138 return (DW_DLV_NOCOUNT);
139 }
140
141 li = dbg->dbgp_lineinfo;
142
143 li->li_incdirs = realloc(li->li_incdirs, (li->li_inclen + 1) *
144 sizeof(char *));
145 if (li->li_incdirs == NULL) {
146 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
147 return (DW_DLV_NOCOUNT);
148 }
149 if ((li->li_incdirs[li->li_inclen] = strdup(name)) == NULL) {
150 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
151 return (DW_DLV_NOCOUNT);
152 }
153
154 return (++li->li_inclen);
155 }
156
157 Dwarf_Unsigned
dwarf_add_file_decl(Dwarf_P_Debug dbg,char * name,Dwarf_Unsigned dirndx,Dwarf_Unsigned mtime,Dwarf_Unsigned size,Dwarf_Error * error)158 dwarf_add_file_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Unsigned dirndx,
159 Dwarf_Unsigned mtime, Dwarf_Unsigned size, Dwarf_Error *error)
160 {
161 Dwarf_LineInfo li;
162 Dwarf_LineFile lf;
163
164 if (dbg == NULL || name == NULL || strlen(name) == 0) {
165 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
166 return (DW_DLV_NOCOUNT);
167 }
168
169 li = dbg->dbgp_lineinfo;
170
171 if ((lf = malloc(sizeof(struct _Dwarf_LineFile))) == NULL) {
172 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
173 return (DW_DLE_MEMORY);
174 }
175
176 if ((lf->lf_fname = strdup(name)) == NULL) {
177 free(lf);
178 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
179 return (DW_DLE_MEMORY);
180 }
181 lf->lf_dirndx = dirndx;
182 lf->lf_mtime = mtime;
183 lf->lf_size = size;
184 STAILQ_INSERT_TAIL(&li->li_lflist, lf, lf_next);
185
186 return (++li->li_lflen);
187 }
188