1 /* addr2line.c -- convert addresses to line number and function name
2 Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
3 2007, 2009 Free Software Foundation, Inc.
4 Contributed by Ulrich Lauther <Ulrich.Lauther@mchp.siemens.de>
6 This file is part of GNU Binutils.
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 3, or (at your option)
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.
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
20 Foundation, 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
24 /* Derived from objdump.c and nm.c by Ulrich.Lauther@mchp.siemens.de
27 addr2line [options] addr addr ...
31 both forms write results to stdout, the second form reads addresses
32 to be converted from stdin. */
37 #include "libiberty.h"
42 static bfd_boolean unwind_inlines; /* -i, unwind inlined functions. */
43 static bfd_boolean with_addresses; /* -a, show addresses. */
44 static bfd_boolean with_functions; /* -f, show function names. */
45 static bfd_boolean do_demangle; /* -C, demangle names. */
46 static bfd_boolean pretty_print; /* -p, print on one line. */
47 static bfd_boolean base_names; /* -s, strip directory names. */
49 static int naddr; /* Number of addresses to process. */
50 static char **addr; /* Hex addresses to process. */
52 static asymbol **syms; /* Symbol table. */
54 static struct option long_options[] =
56 {"addresses", no_argument, NULL, 'a'},
57 {"basenames", no_argument, NULL, 's'},
58 {"demangle", optional_argument, NULL, 'C'},
59 {"exe", required_argument, NULL, 'e'},
60 {"functions", no_argument, NULL, 'f'},
61 {"inlines", no_argument, NULL, 'i'},
62 {"pretty-print", no_argument, NULL, 'p'},
63 {"section", required_argument, NULL, 'j'},
64 {"target", required_argument, NULL, 'b'},
65 {"help", no_argument, NULL, 'H'},
66 {"version", no_argument, NULL, 'V'},
67 {0, no_argument, 0, 0}
70 static void usage (FILE *, int);
71 static void slurp_symtab (bfd *);
72 static void find_address_in_section (bfd *, asection *, void *);
73 static void find_offset_in_section (bfd *, asection *);
74 static void translate_addresses (bfd *, asection *);
76 /* Print a usage message to STREAM and exit with STATUS. */
79 usage (FILE *stream, int status)
81 fprintf (stream, _("Usage: %s [option(s)] [addr(s)]\n"), program_name);
82 fprintf (stream, _(" Convert addresses into line number/file name pairs.\n"));
83 fprintf (stream, _(" If no addresses are specified on the command line, they will be read from stdin\n"));
84 fprintf (stream, _(" The options are:\n\
85 @<file> Read options from <file>\n\
86 -a --addresses Show addresses\n\
87 -b --target=<bfdname> Set the binary file format\n\
88 -e --exe=<executable> Set the input file name (default is a.out)\n\
89 -i --inlines Unwind inlined functions\n\
90 -j --section=<name> Read section-relative offsets instead of addresses\n\
91 -p --pretty-print Make the output easier to read for humans\n\
92 -s --basenames Strip directory names\n\
93 -f --functions Show function names\n\
94 -C --demangle[=style] Demangle function names\n\
95 -h --help Display this information\n\
96 -v --version Display the program's version\n\
99 list_supported_targets (program_name, stream);
100 if (REPORT_BUGS_TO[0] && status == 0)
101 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
105 /* Read in the symbol table. */
108 slurp_symtab (bfd *abfd)
112 bfd_boolean dynamic = FALSE;
114 if ((bfd_get_file_flags (abfd) & HAS_SYMS) == 0)
117 storage = bfd_get_symtab_upper_bound (abfd);
120 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
124 bfd_fatal (bfd_get_filename (abfd));
126 syms = (asymbol **) xmalloc (storage);
128 symcount = bfd_canonicalize_dynamic_symtab (abfd, syms);
130 symcount = bfd_canonicalize_symtab (abfd, syms);
132 bfd_fatal (bfd_get_filename (abfd));
134 /* If there are no symbols left after canonicalization and
135 we have not tried the dynamic symbols then give them a go. */
138 && (storage = bfd_get_dynamic_symtab_upper_bound (abfd)) > 0)
141 syms = xmalloc (storage);
142 symcount = bfd_canonicalize_dynamic_symtab (abfd, syms);
146 /* These global variables are used to pass information between
147 translate_addresses and find_address_in_section. */
150 static const char *filename;
151 static const char *functionname;
152 static unsigned int line;
153 static unsigned int discriminator;
154 static bfd_boolean found;
156 /* Look for an address in a section. This is called via
157 bfd_map_over_sections. */
160 find_address_in_section (bfd *abfd, asection *section,
161 void *data ATTRIBUTE_UNUSED)
169 if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
172 vma = bfd_get_section_vma (abfd, section);
176 size = bfd_get_section_size (section);
177 if (pc >= vma + size)
180 found = bfd_find_nearest_line_discriminator (abfd, section, syms, pc - vma,
181 &filename, &functionname,
182 &line, &discriminator);
185 /* Look for an offset in a section. This is directly called. */
188 find_offset_in_section (bfd *abfd, asection *section)
195 if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
198 size = bfd_get_section_size (section);
202 found = bfd_find_nearest_line_discriminator (abfd, section, syms, pc,
203 &filename, &functionname,
204 &line, &discriminator);
207 /* Read hexadecimal addresses from stdin, translate into
208 file_name:line_number and optionally function name. */
211 translate_addresses (bfd *abfd, asection *section)
213 int read_stdin = (naddr == 0);
221 if (fgets (addr_hex, sizeof addr_hex, stdin) == NULL)
223 pc = bfd_scan_vma (addr_hex, NULL, 16);
230 pc = bfd_scan_vma (*addr++, NULL, 16);
233 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
235 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
236 bfd_vma sign = (bfd_vma) 1 << (bed->s->arch_size - 1);
238 pc &= (sign << 1) - 1;
239 if (bed->sign_extend_vma)
240 pc = (pc ^ sign) - sign;
246 bfd_printf_vma (abfd, pc);
256 find_offset_in_section (abfd, section);
258 bfd_map_over_sections (abfd, find_address_in_section, NULL);
281 if (name == NULL || *name == '\0')
283 else if (do_demangle)
285 alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
292 /* Note for translators: This printf is used to join the
293 function name just printed above to the line number/
294 file name pair that is about to be printed below. Eg:
305 if (base_names && filename != NULL)
309 h = strrchr (filename, '/');
314 printf ("%s:", filename ? filename : "??");
317 if (discriminator != 0)
318 printf ("%u (discriminator %u)\n", line, discriminator);
320 printf ("%u\n", line);
327 found = bfd_find_inliner_info (abfd, &filename, &functionname,
332 /* Note for translators: This printf is used to join the
333 line number/file name pair that has just been printed with
334 the line number/file name pair that is going to be printed
335 by the next iteration of the while loop. Eg:
337 123:bar.c (inlined by) 456:main.c */
338 printf (_(" (inlined by) "));
342 /* fflush() is essential for using this command as a server
343 child process that reads addresses from a pipe and responds
344 with line number information, processing one address at a
350 /* Process a file. Returns an exit value for main(). */
353 process_file (const char *file_name, const char *section_name,
360 if (get_file_size (file_name) < 1)
363 abfd = bfd_openr (file_name, target);
365 bfd_fatal (file_name);
367 /* Decompress sections. */
368 abfd->flags |= BFD_DECOMPRESS;
370 if (bfd_check_format (abfd, bfd_archive))
371 fatal (_("%s: cannot get addresses from archive"), file_name);
373 if (! bfd_check_format_matches (abfd, bfd_object, &matching))
375 bfd_nonfatal (bfd_get_filename (abfd));
376 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
378 list_matching_formats (matching);
384 if (section_name != NULL)
386 section = bfd_get_section_by_name (abfd, section_name);
388 fatal (_("%s: cannot find section %s"), file_name, section_name);
395 translate_addresses (abfd, section);
409 main (int argc, char **argv)
411 const char *file_name;
412 const char *section_name;
416 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
417 setlocale (LC_MESSAGES, "");
419 #if defined (HAVE_SETLOCALE)
420 setlocale (LC_CTYPE, "");
422 bindtextdomain (PACKAGE, LOCALEDIR);
423 textdomain (PACKAGE);
425 program_name = *argv;
426 xmalloc_set_program_name (program_name);
428 expandargv (&argc, &argv);
431 set_default_bfd_target ();
436 while ((c = getopt_long (argc, argv, "ab:Ce:sfHhij:pVv", long_options, (int *) 0))
442 break; /* We've been given a long option. */
444 with_addresses = TRUE;
453 enum demangling_styles style;
455 style = cplus_demangle_name_to_style (optarg);
456 if (style == unknown_demangling)
457 fatal (_("unknown demangling style `%s'"),
460 cplus_demangle_set_style (style);
470 with_functions = TRUE;
477 print_version ("addr2line");
484 unwind_inlines = TRUE;
487 section_name = optarg;
495 if (file_name == NULL)
498 addr = argv + optind;
499 naddr = argc - optind;
501 return process_file (file_name, section_name, target);