source: rtems-tools/rtemstoolkit/elftoolchain/libdwarf/dwarf_pro_lineno.c @ 4bb3996

5
Last change on this file since 4bb3996 was 4bb3996, checked in by Chris Johns <chrisj@…>, on 04/30/18 at 05:34:48

rtemstoolkit: Add libdwarf from elftoolchain.

The code is taken from:

​https://svn.code.sf.net/p/elftoolchain/code/trunk

Update #3417
  • Property mode set to 100644
File size: 5.1 KB
Line 
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
29ELFTC_VCSID("$Id: dwarf_pro_lineno.c 2973 2013-12-23 06:46:16Z kaiwang27 $");
30
31Dwarf_Unsigned
32dwarf_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
72Dwarf_Unsigned
73dwarf_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
99Dwarf_Unsigned
100dwarf_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
131Dwarf_Unsigned
132dwarf_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
157Dwarf_Unsigned
158dwarf_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}
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