2006-05-26 H.J. Lu <hongjiu.lu@intel.com>
[deliverable/binutils-gdb.git] / binutils / addr2line.c
CommitLineData
252b5132 1/* addr2line.c -- convert addresses to line number and function name
c5f8c388 2 Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006
2da42df6 3 Free Software Foundation, Inc.
c8c5888e 4 Contributed by Ulrich Lauther <Ulrich.Lauther@mchp.siemens.de>
252b5132
RH
5
6 This file is part of GNU Binutils.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
b43b5d5f 20 Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132 21
c8c5888e 22/* Derived from objdump.c and nm.c by Ulrich.Lauther@mchp.siemens.de
252b5132 23
f462a9ea 24 Usage:
252b5132
RH
25 addr2line [options] addr addr ...
26 or
f462a9ea 27 addr2line [options]
252b5132
RH
28
29 both forms write results to stdout, the second form reads addresses
30 to be converted from stdin. */
31
e46eba98 32#include "config.h"
252b5132
RH
33#include <string.h>
34
35#include "bfd.h"
36#include "getopt.h"
37#include "libiberty.h"
38#include "demangle.h"
39#include "bucomm.h"
a6637ec0 40#include "budemang.h"
252b5132 41
0c552dc1 42static bfd_boolean unwind_inlines; /* -i, unwind inlined functions. */
b34976b6
AM
43static bfd_boolean with_functions; /* -f, show function names. */
44static bfd_boolean do_demangle; /* -C, demangle names. */
45static bfd_boolean base_names; /* -s, strip directory names. */
252b5132
RH
46
47static int naddr; /* Number of addresses to process. */
48static char **addr; /* Hex addresses to process. */
49
50static asymbol **syms; /* Symbol table. */
51
52static struct option long_options[] =
53{
54 {"basenames", no_argument, NULL, 's'},
28c309a2 55 {"demangle", optional_argument, NULL, 'C'},
252b5132
RH
56 {"exe", required_argument, NULL, 'e'},
57 {"functions", no_argument, NULL, 'f'},
0c552dc1 58 {"inlines", no_argument, NULL, 'i'},
c5f8c388 59 {"section", required_argument, NULL, 'j'},
252b5132
RH
60 {"target", required_argument, NULL, 'b'},
61 {"help", no_argument, NULL, 'H'},
62 {"version", no_argument, NULL, 'V'},
63 {0, no_argument, 0, 0}
64};
65
2da42df6
AJ
66static void usage (FILE *, int);
67static void slurp_symtab (bfd *);
68static void find_address_in_section (bfd *, asection *, void *);
c5f8c388
EB
69static void find_offset_in_section (bfd *, asection *);
70static void translate_addresses (bfd *, asection *);
71static void process_file (const char *, const char *, const char *);
252b5132
RH
72\f
73/* Print a usage message to STREAM and exit with STATUS. */
74
75static void
2da42df6 76usage (FILE *stream, int status)
252b5132 77{
8b53311e
NC
78 fprintf (stream, _("Usage: %s [option(s)] [addr(s)]\n"), program_name);
79 fprintf (stream, _(" Convert addresses into line number/file name pairs.\n"));
80 fprintf (stream, _(" If no addresses are specified on the command line, they will be read from stdin\n"));
81 fprintf (stream, _(" The options are:\n\
07012eee 82 @<file> Read options from <file>\n\
8b53311e
NC
83 -b --target=<bfdname> Set the binary file format\n\
84 -e --exe=<executable> Set the input file name (default is a.out)\n\
c5f8c388
EB
85 -i --inlines Unwind inlined functions\n\
86 -j --section=<name> Read section-relative offsets instead of addresses\n\
8b53311e
NC
87 -s --basenames Strip directory names\n\
88 -f --functions Show function names\n\
89 -C --demangle[=style] Demangle function names\n\
90 -h --help Display this information\n\
91 -v --version Display the program's version\n\
92\n"));
93
252b5132
RH
94 list_supported_targets (program_name, stream);
95 if (status == 0)
8ad3436c 96 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
252b5132
RH
97 exit (status);
98}
99\f
100/* Read in the symbol table. */
101
102static void
2da42df6 103slurp_symtab (bfd *abfd)
252b5132 104{
252b5132 105 long symcount;
f309035a 106 unsigned int size;
252b5132
RH
107
108 if ((bfd_get_file_flags (abfd) & HAS_SYMS) == 0)
109 return;
110
2da42df6 111 symcount = bfd_read_minisymbols (abfd, FALSE, (void *) &syms, &size);
f309035a 112 if (symcount == 0)
2da42df6 113 symcount = bfd_read_minisymbols (abfd, TRUE /* dynamic */, (void *) &syms, &size);
252b5132 114
252b5132
RH
115 if (symcount < 0)
116 bfd_fatal (bfd_get_filename (abfd));
117}
118\f
119/* These global variables are used to pass information between
120 translate_addresses and find_address_in_section. */
121
122static bfd_vma pc;
123static const char *filename;
124static const char *functionname;
125static unsigned int line;
b34976b6 126static bfd_boolean found;
252b5132
RH
127
128/* Look for an address in a section. This is called via
129 bfd_map_over_sections. */
130
131static void
2da42df6
AJ
132find_address_in_section (bfd *abfd, asection *section,
133 void *data ATTRIBUTE_UNUSED)
252b5132
RH
134{
135 bfd_vma vma;
136 bfd_size_type size;
137
138 if (found)
139 return;
140
141 if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
142 return;
143
144 vma = bfd_get_section_vma (abfd, section);
145 if (pc < vma)
146 return;
147
135dfb4a 148 size = bfd_get_section_size (section);
252b5132
RH
149 if (pc >= vma + size)
150 return;
151
152 found = bfd_find_nearest_line (abfd, section, syms, pc - vma,
153 &filename, &functionname, &line);
154}
155
c5f8c388
EB
156/* Look for an offset in a section. This is directly called. */
157
158static void
159find_offset_in_section (bfd *abfd, asection *section)
160{
161 bfd_size_type size;
162
163 if (found)
164 return;
165
166 if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
167 return;
168
169 size = bfd_get_section_size (section);
170 if (pc >= size)
171 return;
172
173 found = bfd_find_nearest_line (abfd, section, syms, pc,
174 &filename, &functionname, &line);
175}
176
252b5132
RH
177/* Read hexadecimal addresses from stdin, translate into
178 file_name:line_number and optionally function name. */
179
180static void
c5f8c388 181translate_addresses (bfd *abfd, asection *section)
252b5132
RH
182{
183 int read_stdin = (naddr == 0);
184
185 for (;;)
186 {
187 if (read_stdin)
188 {
189 char addr_hex[100];
190
191 if (fgets (addr_hex, sizeof addr_hex, stdin) == NULL)
192 break;
193 pc = bfd_scan_vma (addr_hex, NULL, 16);
194 }
195 else
196 {
197 if (naddr <= 0)
198 break;
199 --naddr;
200 pc = bfd_scan_vma (*addr++, NULL, 16);
201 }
202
b34976b6 203 found = FALSE;
c5f8c388
EB
204 if (section)
205 find_offset_in_section (abfd, section);
206 else
207 bfd_map_over_sections (abfd, find_address_in_section, NULL);
252b5132
RH
208
209 if (! found)
210 {
211 if (with_functions)
212 printf ("??\n");
213 printf ("??:0\n");
214 }
215 else
216 {
0c552dc1
FF
217 do {
218 if (with_functions)
219 {
220 const char *name;
221 char *alloc = NULL;
222
223 name = functionname;
224 if (name == NULL || *name == '\0')
225 name = "??";
226 else if (do_demangle)
227 {
228 alloc = demangle (abfd, name);
229 name = alloc;
230 }
231
232 printf ("%s\n", name);
233
234 if (alloc != NULL)
235 free (alloc);
236 }
237
238 if (base_names && filename != NULL)
239 {
240 char *h;
241
242 h = strrchr (filename, '/');
243 if (h != NULL)
244 filename = h + 1;
245 }
246
247 printf ("%s:%u\n", filename ? filename : "??", line);
248 if (!unwind_inlines)
249 found = FALSE;
250 else
251 found = bfd_find_inliner_info (abfd, &filename, &functionname, &line);
252 } while (found);
252b5132 253
252b5132
RH
254 }
255
256 /* fflush() is essential for using this command as a server
257 child process that reads addresses from a pipe and responds
258 with line number information, processing one address at a
259 time. */
260 fflush (stdout);
261 }
262}
263
264/* Process a file. */
265
266static void
c5f8c388
EB
267process_file (const char *file_name, const char *section_name,
268 const char *target)
252b5132
RH
269{
270 bfd *abfd;
c5f8c388 271 asection *section;
252b5132
RH
272 char **matching;
273
f24ddbdd
NC
274 if (get_file_size (file_name) < 1)
275 return;
276
47badb7b 277 abfd = bfd_openr (file_name, target);
252b5132 278 if (abfd == NULL)
47badb7b 279 bfd_fatal (file_name);
252b5132
RH
280
281 if (bfd_check_format (abfd, bfd_archive))
c5f8c388 282 fatal (_("%s: cannot get addresses from archive"), file_name);
252b5132
RH
283
284 if (! bfd_check_format_matches (abfd, bfd_object, &matching))
285 {
286 bfd_nonfatal (bfd_get_filename (abfd));
287 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
288 {
289 list_matching_formats (matching);
290 free (matching);
291 }
292 xexit (1);
293 }
294
c5f8c388
EB
295 if (section_name != NULL)
296 {
297 section = bfd_get_section_by_name (abfd, section_name);
298 if (section == NULL)
299 fatal (_("%s: cannot find section %s"), file_name, section_name);
300 }
301 else
302 section = NULL;
303
252b5132
RH
304 slurp_symtab (abfd);
305
c5f8c388 306 translate_addresses (abfd, section);
252b5132
RH
307
308 if (syms != NULL)
309 {
310 free (syms);
311 syms = NULL;
312 }
313
314 bfd_close (abfd);
315}
316\f
317int
2da42df6 318main (int argc, char **argv)
252b5132 319{
47badb7b 320 const char *file_name;
c5f8c388 321 const char *section_name;
252b5132
RH
322 char *target;
323 int c;
324
325#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
326 setlocale (LC_MESSAGES, "");
3882b010
L
327#endif
328#if defined (HAVE_SETLOCALE)
329 setlocale (LC_CTYPE, "");
252b5132
RH
330#endif
331 bindtextdomain (PACKAGE, LOCALEDIR);
332 textdomain (PACKAGE);
333
334 program_name = *argv;
335 xmalloc_set_program_name (program_name);
336
869b9d07
MM
337 expandargv (&argc, &argv);
338
252b5132
RH
339 bfd_init ();
340 set_default_bfd_target ();
341
47badb7b 342 file_name = NULL;
c5f8c388 343 section_name = NULL;
252b5132 344 target = NULL;
c5f8c388 345 while ((c = getopt_long (argc, argv, "b:Ce:sfHhij:Vv", long_options, (int *) 0))
252b5132
RH
346 != EOF)
347 {
348 switch (c)
349 {
350 case 0:
8b53311e 351 break; /* We've been given a long option. */
252b5132
RH
352 case 'b':
353 target = optarg;
354 break;
355 case 'C':
b34976b6 356 do_demangle = TRUE;
28c309a2
NC
357 if (optarg != NULL)
358 {
359 enum demangling_styles style;
f462a9ea 360
28c309a2 361 style = cplus_demangle_name_to_style (optarg);
f462a9ea 362 if (style == unknown_demangling)
28c309a2
NC
363 fatal (_("unknown demangling style `%s'"),
364 optarg);
f462a9ea 365
28c309a2 366 cplus_demangle_set_style (style);
f462a9ea 367 }
252b5132
RH
368 break;
369 case 'e':
47badb7b 370 file_name = optarg;
252b5132
RH
371 break;
372 case 's':
b34976b6 373 base_names = TRUE;
252b5132
RH
374 break;
375 case 'f':
b34976b6 376 with_functions = TRUE;
252b5132 377 break;
8b53311e 378 case 'v':
252b5132
RH
379 case 'V':
380 print_version ("addr2line");
381 break;
8b53311e 382 case 'h':
252b5132
RH
383 case 'H':
384 usage (stdout, 0);
385 break;
0c552dc1
FF
386 case 'i':
387 unwind_inlines = TRUE;
388 break;
c5f8c388
EB
389 case 'j':
390 section_name = optarg;
391 break;
252b5132
RH
392 default:
393 usage (stderr, 1);
394 break;
395 }
396 }
397
47badb7b
NC
398 if (file_name == NULL)
399 file_name = "a.out";
252b5132
RH
400
401 addr = argv + optind;
402 naddr = argc - optind;
403
c5f8c388 404 process_file (file_name, section_name, target);
252b5132
RH
405
406 return 0;
407}
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