Commit | Line | Data |
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252b5132 | 1 | /* addr2line.c -- convert addresses to line number and function name |
b90efa5b | 2 | Copyright (C) 1997-2015 Free Software Foundation, Inc. |
c8c5888e | 3 | Contributed by Ulrich Lauther <Ulrich.Lauther@mchp.siemens.de> |
252b5132 RH |
4 | |
5 | This file is part of GNU Binutils. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
32866df7 | 9 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
10 | any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
32866df7 NC |
19 | Foundation, 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 | 22 | |
c8c5888e | 23 | /* Derived from objdump.c and nm.c by Ulrich.Lauther@mchp.siemens.de |
252b5132 | 24 | |
f462a9ea | 25 | Usage: |
252b5132 RH |
26 | addr2line [options] addr addr ... |
27 | or | |
f462a9ea | 28 | addr2line [options] |
252b5132 RH |
29 | |
30 | both forms write results to stdout, the second form reads addresses | |
31 | to be converted from stdin. */ | |
32 | ||
3db64b00 | 33 | #include "sysdep.h" |
252b5132 RH |
34 | #include "bfd.h" |
35 | #include "getopt.h" | |
36 | #include "libiberty.h" | |
37 | #include "demangle.h" | |
38 | #include "bucomm.h" | |
877c169d | 39 | #include "elf-bfd.h" |
252b5132 | 40 | |
0c552dc1 | 41 | static bfd_boolean unwind_inlines; /* -i, unwind inlined functions. */ |
be6f6493 | 42 | static bfd_boolean with_addresses; /* -a, show addresses. */ |
b34976b6 AM |
43 | static bfd_boolean with_functions; /* -f, show function names. */ |
44 | static bfd_boolean do_demangle; /* -C, demangle names. */ | |
68cdf72f | 45 | static bfd_boolean pretty_print; /* -p, print on one line. */ |
b34976b6 | 46 | static bfd_boolean base_names; /* -s, strip directory names. */ |
252b5132 RH |
47 | |
48 | static int naddr; /* Number of addresses to process. */ | |
49 | static char **addr; /* Hex addresses to process. */ | |
50 | ||
51 | static asymbol **syms; /* Symbol table. */ | |
52 | ||
53 | static struct option long_options[] = | |
54 | { | |
be6f6493 | 55 | {"addresses", no_argument, NULL, 'a'}, |
252b5132 | 56 | {"basenames", no_argument, NULL, 's'}, |
28c309a2 | 57 | {"demangle", optional_argument, NULL, 'C'}, |
252b5132 RH |
58 | {"exe", required_argument, NULL, 'e'}, |
59 | {"functions", no_argument, NULL, 'f'}, | |
0c552dc1 | 60 | {"inlines", no_argument, NULL, 'i'}, |
68cdf72f | 61 | {"pretty-print", no_argument, NULL, 'p'}, |
c5f8c388 | 62 | {"section", required_argument, NULL, 'j'}, |
252b5132 RH |
63 | {"target", required_argument, NULL, 'b'}, |
64 | {"help", no_argument, NULL, 'H'}, | |
65 | {"version", no_argument, NULL, 'V'}, | |
66 | {0, no_argument, 0, 0} | |
67 | }; | |
68 | ||
2da42df6 AJ |
69 | static void usage (FILE *, int); |
70 | static void slurp_symtab (bfd *); | |
71 | static void find_address_in_section (bfd *, asection *, void *); | |
c5f8c388 EB |
72 | static void find_offset_in_section (bfd *, asection *); |
73 | static void translate_addresses (bfd *, asection *); | |
252b5132 RH |
74 | \f |
75 | /* Print a usage message to STREAM and exit with STATUS. */ | |
76 | ||
77 | static void | |
2da42df6 | 78 | usage (FILE *stream, int status) |
252b5132 | 79 | { |
8b53311e NC |
80 | fprintf (stream, _("Usage: %s [option(s)] [addr(s)]\n"), program_name); |
81 | fprintf (stream, _(" Convert addresses into line number/file name pairs.\n")); | |
82 | fprintf (stream, _(" If no addresses are specified on the command line, they will be read from stdin\n")); | |
83 | fprintf (stream, _(" The options are:\n\ | |
07012eee | 84 | @<file> Read options from <file>\n\ |
be6f6493 | 85 | -a --addresses Show addresses\n\ |
8b53311e NC |
86 | -b --target=<bfdname> Set the binary file format\n\ |
87 | -e --exe=<executable> Set the input file name (default is a.out)\n\ | |
c5f8c388 EB |
88 | -i --inlines Unwind inlined functions\n\ |
89 | -j --section=<name> Read section-relative offsets instead of addresses\n\ | |
68cdf72f | 90 | -p --pretty-print Make the output easier to read for humans\n\ |
8b53311e NC |
91 | -s --basenames Strip directory names\n\ |
92 | -f --functions Show function names\n\ | |
93 | -C --demangle[=style] Demangle function names\n\ | |
94 | -h --help Display this information\n\ | |
95 | -v --version Display the program's version\n\ | |
96 | \n")); | |
97 | ||
252b5132 | 98 | list_supported_targets (program_name, stream); |
92f01d61 | 99 | if (REPORT_BUGS_TO[0] && status == 0) |
8ad3436c | 100 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
252b5132 RH |
101 | exit (status); |
102 | } | |
103 | \f | |
104 | /* Read in the symbol table. */ | |
105 | ||
106 | static void | |
2da42df6 | 107 | slurp_symtab (bfd *abfd) |
252b5132 | 108 | { |
d5e7ea07 | 109 | long storage; |
252b5132 | 110 | long symcount; |
d5e7ea07 | 111 | bfd_boolean dynamic = FALSE; |
252b5132 RH |
112 | |
113 | if ((bfd_get_file_flags (abfd) & HAS_SYMS) == 0) | |
114 | return; | |
115 | ||
d5e7ea07 AM |
116 | storage = bfd_get_symtab_upper_bound (abfd); |
117 | if (storage == 0) | |
118 | { | |
119 | storage = bfd_get_dynamic_symtab_upper_bound (abfd); | |
120 | dynamic = TRUE; | |
121 | } | |
122 | if (storage < 0) | |
123 | bfd_fatal (bfd_get_filename (abfd)); | |
252b5132 | 124 | |
d5e7ea07 AM |
125 | syms = (asymbol **) xmalloc (storage); |
126 | if (dynamic) | |
127 | symcount = bfd_canonicalize_dynamic_symtab (abfd, syms); | |
128 | else | |
129 | symcount = bfd_canonicalize_symtab (abfd, syms); | |
252b5132 RH |
130 | if (symcount < 0) |
131 | bfd_fatal (bfd_get_filename (abfd)); | |
0d0fb1ba NC |
132 | |
133 | /* If there are no symbols left after canonicalization and | |
134 | we have not tried the dynamic symbols then give them a go. */ | |
135 | if (symcount == 0 | |
136 | && ! dynamic | |
137 | && (storage = bfd_get_dynamic_symtab_upper_bound (abfd)) > 0) | |
138 | { | |
139 | free (syms); | |
140 | syms = xmalloc (storage); | |
141 | symcount = bfd_canonicalize_dynamic_symtab (abfd, syms); | |
142 | } | |
877a8638 NC |
143 | |
144 | /* PR 17512: file: 2a1d3b5b. | |
145 | Do not pretend that we have some symbols when we don't. */ | |
146 | if (symcount <= 0) | |
147 | { | |
148 | free (syms); | |
149 | syms = NULL; | |
150 | } | |
252b5132 RH |
151 | } |
152 | \f | |
153 | /* These global variables are used to pass information between | |
154 | translate_addresses and find_address_in_section. */ | |
155 | ||
156 | static bfd_vma pc; | |
157 | static const char *filename; | |
158 | static const char *functionname; | |
159 | static unsigned int line; | |
9b8d1a36 | 160 | static unsigned int discriminator; |
b34976b6 | 161 | static bfd_boolean found; |
252b5132 RH |
162 | |
163 | /* Look for an address in a section. This is called via | |
164 | bfd_map_over_sections. */ | |
165 | ||
166 | static void | |
2da42df6 AJ |
167 | find_address_in_section (bfd *abfd, asection *section, |
168 | void *data ATTRIBUTE_UNUSED) | |
252b5132 RH |
169 | { |
170 | bfd_vma vma; | |
171 | bfd_size_type size; | |
172 | ||
173 | if (found) | |
174 | return; | |
175 | ||
176 | if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0) | |
177 | return; | |
178 | ||
179 | vma = bfd_get_section_vma (abfd, section); | |
180 | if (pc < vma) | |
181 | return; | |
182 | ||
135dfb4a | 183 | size = bfd_get_section_size (section); |
252b5132 RH |
184 | if (pc >= vma + size) |
185 | return; | |
186 | ||
9b8d1a36 CC |
187 | found = bfd_find_nearest_line_discriminator (abfd, section, syms, pc - vma, |
188 | &filename, &functionname, | |
189 | &line, &discriminator); | |
252b5132 RH |
190 | } |
191 | ||
c5f8c388 EB |
192 | /* Look for an offset in a section. This is directly called. */ |
193 | ||
194 | static void | |
195 | find_offset_in_section (bfd *abfd, asection *section) | |
196 | { | |
197 | bfd_size_type size; | |
198 | ||
199 | if (found) | |
200 | return; | |
201 | ||
202 | if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0) | |
203 | return; | |
204 | ||
205 | size = bfd_get_section_size (section); | |
206 | if (pc >= size) | |
207 | return; | |
208 | ||
9b8d1a36 CC |
209 | found = bfd_find_nearest_line_discriminator (abfd, section, syms, pc, |
210 | &filename, &functionname, | |
211 | &line, &discriminator); | |
c5f8c388 EB |
212 | } |
213 | ||
252b5132 RH |
214 | /* Read hexadecimal addresses from stdin, translate into |
215 | file_name:line_number and optionally function name. */ | |
216 | ||
217 | static void | |
c5f8c388 | 218 | translate_addresses (bfd *abfd, asection *section) |
252b5132 RH |
219 | { |
220 | int read_stdin = (naddr == 0); | |
221 | ||
222 | for (;;) | |
223 | { | |
224 | if (read_stdin) | |
225 | { | |
226 | char addr_hex[100]; | |
227 | ||
228 | if (fgets (addr_hex, sizeof addr_hex, stdin) == NULL) | |
229 | break; | |
230 | pc = bfd_scan_vma (addr_hex, NULL, 16); | |
231 | } | |
232 | else | |
233 | { | |
234 | if (naddr <= 0) | |
235 | break; | |
236 | --naddr; | |
237 | pc = bfd_scan_vma (*addr++, NULL, 16); | |
238 | } | |
239 | ||
670b0bad AM |
240 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
241 | { | |
242 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
243 | bfd_vma sign = (bfd_vma) 1 << (bed->s->arch_size - 1); | |
244 | ||
245 | pc &= (sign << 1) - 1; | |
246 | if (bed->sign_extend_vma) | |
247 | pc = (pc ^ sign) - sign; | |
248 | } | |
877c169d | 249 | |
be6f6493 TG |
250 | if (with_addresses) |
251 | { | |
252 | printf ("0x"); | |
253 | bfd_printf_vma (abfd, pc); | |
68cdf72f TG |
254 | |
255 | if (pretty_print) | |
256 | printf (": "); | |
257 | else | |
258 | printf ("\n"); | |
be6f6493 TG |
259 | } |
260 | ||
b34976b6 | 261 | found = FALSE; |
c5f8c388 EB |
262 | if (section) |
263 | find_offset_in_section (abfd, section); | |
264 | else | |
265 | bfd_map_over_sections (abfd, find_address_in_section, NULL); | |
252b5132 RH |
266 | |
267 | if (! found) | |
268 | { | |
269 | if (with_functions) | |
a477bfd1 NC |
270 | { |
271 | if (pretty_print) | |
272 | printf ("?? "); | |
273 | else | |
274 | printf ("??\n"); | |
275 | } | |
252b5132 RH |
276 | printf ("??:0\n"); |
277 | } | |
278 | else | |
279 | { | |
68cdf72f TG |
280 | while (1) |
281 | { | |
282 | if (with_functions) | |
283 | { | |
284 | const char *name; | |
285 | char *alloc = NULL; | |
286 | ||
287 | name = functionname; | |
288 | if (name == NULL || *name == '\0') | |
289 | name = "??"; | |
290 | else if (do_demangle) | |
291 | { | |
292 | alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS); | |
293 | if (alloc != NULL) | |
294 | name = alloc; | |
295 | } | |
296 | ||
297 | printf ("%s", name); | |
298 | if (pretty_print) | |
9cf03b7e NC |
299 | /* Note for translators: This printf is used to join the |
300 | function name just printed above to the line number/ | |
301 | file name pair that is about to be printed below. Eg: | |
302 | ||
303 | foo at 123:bar.c */ | |
68cdf72f TG |
304 | printf (_(" at ")); |
305 | else | |
306 | printf ("\n"); | |
307 | ||
308 | if (alloc != NULL) | |
309 | free (alloc); | |
310 | } | |
311 | ||
312 | if (base_names && filename != NULL) | |
313 | { | |
314 | char *h; | |
315 | ||
316 | h = strrchr (filename, '/'); | |
317 | if (h != NULL) | |
318 | filename = h + 1; | |
319 | } | |
320 | ||
670b0bad AM |
321 | printf ("%s:", filename ? filename : "??"); |
322 | if (line != 0) | |
9b8d1a36 CC |
323 | { |
324 | if (discriminator != 0) | |
325 | printf ("%u (discriminator %u)\n", line, discriminator); | |
326 | else | |
327 | printf ("%u\n", line); | |
328 | } | |
670b0bad AM |
329 | else |
330 | printf ("?\n"); | |
68cdf72f TG |
331 | if (!unwind_inlines) |
332 | found = FALSE; | |
333 | else | |
9cf03b7e NC |
334 | found = bfd_find_inliner_info (abfd, &filename, &functionname, |
335 | &line); | |
68cdf72f TG |
336 | if (! found) |
337 | break; | |
338 | if (pretty_print) | |
9cf03b7e NC |
339 | /* Note for translators: This printf is used to join the |
340 | line number/file name pair that has just been printed with | |
341 | the line number/file name pair that is going to be printed | |
342 | by the next iteration of the while loop. Eg: | |
343 | ||
344 | 123:bar.c (inlined by) 456:main.c */ | |
68cdf72f TG |
345 | printf (_(" (inlined by) ")); |
346 | } | |
252b5132 RH |
347 | } |
348 | ||
349 | /* fflush() is essential for using this command as a server | |
350 | child process that reads addresses from a pipe and responds | |
351 | with line number information, processing one address at a | |
352 | time. */ | |
353 | fflush (stdout); | |
354 | } | |
355 | } | |
356 | ||
d68c385b | 357 | /* Process a file. Returns an exit value for main(). */ |
252b5132 | 358 | |
d68c385b | 359 | static int |
c5f8c388 EB |
360 | process_file (const char *file_name, const char *section_name, |
361 | const char *target) | |
252b5132 RH |
362 | { |
363 | bfd *abfd; | |
c5f8c388 | 364 | asection *section; |
252b5132 RH |
365 | char **matching; |
366 | ||
f24ddbdd | 367 | if (get_file_size (file_name) < 1) |
d68c385b | 368 | return 1; |
f24ddbdd | 369 | |
47badb7b | 370 | abfd = bfd_openr (file_name, target); |
252b5132 | 371 | if (abfd == NULL) |
47badb7b | 372 | bfd_fatal (file_name); |
252b5132 | 373 | |
4a114e3e L |
374 | /* Decompress sections. */ |
375 | abfd->flags |= BFD_DECOMPRESS; | |
376 | ||
252b5132 | 377 | if (bfd_check_format (abfd, bfd_archive)) |
c5f8c388 | 378 | fatal (_("%s: cannot get addresses from archive"), file_name); |
252b5132 RH |
379 | |
380 | if (! bfd_check_format_matches (abfd, bfd_object, &matching)) | |
381 | { | |
382 | bfd_nonfatal (bfd_get_filename (abfd)); | |
383 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) | |
384 | { | |
385 | list_matching_formats (matching); | |
386 | free (matching); | |
387 | } | |
388 | xexit (1); | |
389 | } | |
390 | ||
c5f8c388 EB |
391 | if (section_name != NULL) |
392 | { | |
393 | section = bfd_get_section_by_name (abfd, section_name); | |
394 | if (section == NULL) | |
395 | fatal (_("%s: cannot find section %s"), file_name, section_name); | |
396 | } | |
397 | else | |
398 | section = NULL; | |
399 | ||
252b5132 RH |
400 | slurp_symtab (abfd); |
401 | ||
c5f8c388 | 402 | translate_addresses (abfd, section); |
252b5132 RH |
403 | |
404 | if (syms != NULL) | |
405 | { | |
406 | free (syms); | |
407 | syms = NULL; | |
408 | } | |
409 | ||
410 | bfd_close (abfd); | |
d68c385b NC |
411 | |
412 | return 0; | |
252b5132 RH |
413 | } |
414 | \f | |
415 | int | |
2da42df6 | 416 | main (int argc, char **argv) |
252b5132 | 417 | { |
47badb7b | 418 | const char *file_name; |
c5f8c388 | 419 | const char *section_name; |
252b5132 RH |
420 | char *target; |
421 | int c; | |
422 | ||
423 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
424 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
425 | #endif |
426 | #if defined (HAVE_SETLOCALE) | |
427 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
428 | #endif |
429 | bindtextdomain (PACKAGE, LOCALEDIR); | |
430 | textdomain (PACKAGE); | |
431 | ||
432 | program_name = *argv; | |
433 | xmalloc_set_program_name (program_name); | |
86eafac0 | 434 | bfd_set_error_program_name (program_name); |
252b5132 | 435 | |
869b9d07 MM |
436 | expandargv (&argc, &argv); |
437 | ||
252b5132 RH |
438 | bfd_init (); |
439 | set_default_bfd_target (); | |
440 | ||
47badb7b | 441 | file_name = NULL; |
c5f8c388 | 442 | section_name = NULL; |
252b5132 | 443 | target = NULL; |
68cdf72f | 444 | while ((c = getopt_long (argc, argv, "ab:Ce:sfHhij:pVv", long_options, (int *) 0)) |
252b5132 RH |
445 | != EOF) |
446 | { | |
447 | switch (c) | |
448 | { | |
449 | case 0: | |
8b53311e | 450 | break; /* We've been given a long option. */ |
be6f6493 TG |
451 | case 'a': |
452 | with_addresses = TRUE; | |
453 | break; | |
252b5132 RH |
454 | case 'b': |
455 | target = optarg; | |
456 | break; | |
457 | case 'C': | |
b34976b6 | 458 | do_demangle = TRUE; |
28c309a2 NC |
459 | if (optarg != NULL) |
460 | { | |
461 | enum demangling_styles style; | |
f462a9ea | 462 | |
28c309a2 | 463 | style = cplus_demangle_name_to_style (optarg); |
f462a9ea | 464 | if (style == unknown_demangling) |
28c309a2 NC |
465 | fatal (_("unknown demangling style `%s'"), |
466 | optarg); | |
f462a9ea | 467 | |
28c309a2 | 468 | cplus_demangle_set_style (style); |
f462a9ea | 469 | } |
252b5132 RH |
470 | break; |
471 | case 'e': | |
47badb7b | 472 | file_name = optarg; |
252b5132 RH |
473 | break; |
474 | case 's': | |
b34976b6 | 475 | base_names = TRUE; |
252b5132 RH |
476 | break; |
477 | case 'f': | |
b34976b6 | 478 | with_functions = TRUE; |
252b5132 | 479 | break; |
68cdf72f TG |
480 | case 'p': |
481 | pretty_print = TRUE; | |
482 | break; | |
8b53311e | 483 | case 'v': |
252b5132 RH |
484 | case 'V': |
485 | print_version ("addr2line"); | |
486 | break; | |
8b53311e | 487 | case 'h': |
252b5132 RH |
488 | case 'H': |
489 | usage (stdout, 0); | |
490 | break; | |
0c552dc1 FF |
491 | case 'i': |
492 | unwind_inlines = TRUE; | |
493 | break; | |
c5f8c388 EB |
494 | case 'j': |
495 | section_name = optarg; | |
496 | break; | |
252b5132 RH |
497 | default: |
498 | usage (stderr, 1); | |
499 | break; | |
500 | } | |
501 | } | |
502 | ||
47badb7b NC |
503 | if (file_name == NULL) |
504 | file_name = "a.out"; | |
252b5132 RH |
505 | |
506 | addr = argv + optind; | |
507 | naddr = argc - optind; | |
508 | ||
d68c385b | 509 | return process_file (file_name, section_name, target); |
252b5132 | 510 | } |