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[binutils.git] / binutils / addr2line.c
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1 /* addr2line.c -- convert addresses to line number and function name
2 Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
3 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 2, or (at your option)
11 any later version.
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, MA 02110-1301, USA. */
22 /* Derived from objdump.c and nm.c by Ulrich.Lauther@mchp.siemens.de
24 Usage:
25 addr2line [options] addr addr ...
27 addr2line [options]
29 both forms write results to stdout, the second form reads addresses
30 to be converted from stdin. */
32 #include "config.h"
33 #include <string.h>
35 #include "bfd.h"
36 #include "getopt.h"
37 #include "libiberty.h"
38 #include "demangle.h"
39 #include "bucomm.h"
40 #include "budemang.h"
42 static bfd_boolean unwind_inlines; /* -i, unwind inlined functions. */
43 static bfd_boolean with_functions; /* -f, show function names. */
44 static bfd_boolean do_demangle; /* -C, demangle names. */
45 static bfd_boolean base_names; /* -s, strip directory names. */
47 static int naddr; /* Number of addresses to process. */
48 static char **addr; /* Hex addresses to process. */
50 static asymbol **syms; /* Symbol table. */
52 static struct option long_options[] =
54 {"basenames", no_argument, NULL, 's'},
55 {"demangle", optional_argument, NULL, 'C'},
56 {"exe", required_argument, NULL, 'e'},
57 {"functions", no_argument, NULL, 'f'},
58 {"inlines", no_argument, NULL, 'i'},
59 {"target", required_argument, NULL, 'b'},
60 {"help", no_argument, NULL, 'H'},
61 {"version", no_argument, NULL, 'V'},
62 {0, no_argument, 0, 0}
65 static void usage (FILE *, int);
66 static void slurp_symtab (bfd *);
67 static void find_address_in_section (bfd *, asection *, void *);
68 static void translate_addresses (bfd *);
69 static void process_file (const char *, const char *);
71 /* Print a usage message to STREAM and exit with STATUS. */
73 static void
74 usage (FILE *stream, int status)
76 fprintf (stream, _("Usage: %s [option(s)] [addr(s)]\n"), program_name);
77 fprintf (stream, _(" Convert addresses into line number/file name pairs.\n"));
78 fprintf (stream, _(" If no addresses are specified on the command line, they will be read from stdin\n"));
79 fprintf (stream, _(" The options are:\n\
80 @<file> Read options from <file>\n\
81 -b --target=<bfdname> Set the binary file format\n\
82 -e --exe=<executable> Set the input file name (default is a.out)\n\
83 -i --inlines Unwind inlined functions\n\
84 -s --basenames Strip directory names\n\
85 -f --functions Show function names\n\
86 -C --demangle[=style] Demangle function names\n\
87 -h --help Display this information\n\
88 -v --version Display the program's version\n\
89 \n"));
91 list_supported_targets (program_name, stream);
92 if (status == 0)
93 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
94 exit (status);
97 /* Read in the symbol table. */
99 static void
100 slurp_symtab (bfd *abfd)
102 long symcount;
103 unsigned int size;
105 if ((bfd_get_file_flags (abfd) & HAS_SYMS) == 0)
106 return;
108 symcount = bfd_read_minisymbols (abfd, FALSE, (void *) &syms, &size);
109 if (symcount == 0)
110 symcount = bfd_read_minisymbols (abfd, TRUE /* dynamic */, (void *) &syms, &size);
112 if (symcount < 0)
113 bfd_fatal (bfd_get_filename (abfd));
116 /* These global variables are used to pass information between
117 translate_addresses and find_address_in_section. */
119 static bfd_vma pc;
120 static const char *filename;
121 static const char *functionname;
122 static unsigned int line;
123 static bfd_boolean found;
125 /* Look for an address in a section. This is called via
126 bfd_map_over_sections. */
128 static void
129 find_address_in_section (bfd *abfd, asection *section,
130 void *data ATTRIBUTE_UNUSED)
132 bfd_vma vma;
133 bfd_size_type size;
135 if (found)
136 return;
138 if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
139 return;
141 vma = bfd_get_section_vma (abfd, section);
142 if (pc < vma)
143 return;
145 size = bfd_get_section_size (section);
146 if (pc >= vma + size)
147 return;
149 found = bfd_find_nearest_line (abfd, section, syms, pc - vma,
150 &filename, &functionname, &line);
153 /* Read hexadecimal addresses from stdin, translate into
154 file_name:line_number and optionally function name. */
156 static void
157 translate_addresses (bfd *abfd)
159 int read_stdin = (naddr == 0);
161 for (;;)
163 if (read_stdin)
165 char addr_hex[100];
167 if (fgets (addr_hex, sizeof addr_hex, stdin) == NULL)
168 break;
169 pc = bfd_scan_vma (addr_hex, NULL, 16);
171 else
173 if (naddr <= 0)
174 break;
175 --naddr;
176 pc = bfd_scan_vma (*addr++, NULL, 16);
179 found = FALSE;
180 bfd_map_over_sections (abfd, find_address_in_section, NULL);
182 if (! found)
184 if (with_functions)
185 printf ("??\n");
186 printf ("??:0\n");
188 else
190 do {
191 if (with_functions)
193 const char *name;
194 char *alloc = NULL;
196 name = functionname;
197 if (name == NULL || *name == '\0')
198 name = "??";
199 else if (do_demangle)
201 alloc = demangle (abfd, name);
202 name = alloc;
205 printf ("%s\n", name);
207 if (alloc != NULL)
208 free (alloc);
211 if (base_names && filename != NULL)
213 char *h;
215 h = strrchr (filename, '/');
216 if (h != NULL)
217 filename = h + 1;
220 printf ("%s:%u\n", filename ? filename : "??", line);
221 if (!unwind_inlines)
222 found = FALSE;
223 else
224 found = bfd_find_inliner_info (abfd, &filename, &functionname, &line);
225 } while (found);
229 /* fflush() is essential for using this command as a server
230 child process that reads addresses from a pipe and responds
231 with line number information, processing one address at a
232 time. */
233 fflush (stdout);
237 /* Process a file. */
239 static void
240 process_file (const char *file_name, const char *target)
242 bfd *abfd;
243 char **matching;
245 if (get_file_size (file_name) < 1)
246 return;
248 abfd = bfd_openr (file_name, target);
249 if (abfd == NULL)
250 bfd_fatal (file_name);
252 if (bfd_check_format (abfd, bfd_archive))
253 fatal (_("%s: can not get addresses from archive"), file_name);
255 if (! bfd_check_format_matches (abfd, bfd_object, &matching))
257 bfd_nonfatal (bfd_get_filename (abfd));
258 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
260 list_matching_formats (matching);
261 free (matching);
263 xexit (1);
266 slurp_symtab (abfd);
268 translate_addresses (abfd);
270 if (syms != NULL)
272 free (syms);
273 syms = NULL;
276 bfd_close (abfd);
279 int main (int, char **);
282 main (int argc, char **argv)
284 const char *file_name;
285 char *target;
286 int c;
288 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
289 setlocale (LC_MESSAGES, "");
290 #endif
291 #if defined (HAVE_SETLOCALE)
292 setlocale (LC_CTYPE, "");
293 #endif
294 bindtextdomain (PACKAGE, LOCALEDIR);
295 textdomain (PACKAGE);
297 program_name = *argv;
298 xmalloc_set_program_name (program_name);
300 expandargv (&argc, &argv);
302 bfd_init ();
303 set_default_bfd_target ();
305 file_name = NULL;
306 target = NULL;
307 while ((c = getopt_long (argc, argv, "b:Ce:sfHhiVv", long_options, (int *) 0))
308 != EOF)
310 switch (c)
312 case 0:
313 break; /* We've been given a long option. */
314 case 'b':
315 target = optarg;
316 break;
317 case 'C':
318 do_demangle = TRUE;
319 if (optarg != NULL)
321 enum demangling_styles style;
323 style = cplus_demangle_name_to_style (optarg);
324 if (style == unknown_demangling)
325 fatal (_("unknown demangling style `%s'"),
326 optarg);
328 cplus_demangle_set_style (style);
330 break;
331 case 'e':
332 file_name = optarg;
333 break;
334 case 's':
335 base_names = TRUE;
336 break;
337 case 'f':
338 with_functions = TRUE;
339 break;
340 case 'v':
341 case 'V':
342 print_version ("addr2line");
343 break;
344 case 'h':
345 case 'H':
346 usage (stdout, 0);
347 break;
348 case 'i':
349 unwind_inlines = TRUE;
350 break;
351 default:
352 usage (stderr, 1);
353 break;
357 if (file_name == NULL)
358 file_name = "a.out";
360 addr = argv + optind;
361 naddr = argc - optind;
363 process_file (file_name, target);
365 return 0;