| 1 | /* addr2line.c -- convert addresses to line number and function name |
| 2 | Copyright 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. |
| 3 | Contributed by Ulrich Lauther <Ulrich.Lauther@mchp.siemens.de> |
| 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 |
| 9 | the Free Software Foundation; either version 2, or (at your option) |
| 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 |
| 19 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | /* Derived from objdump.c and nm.c by Ulrich.Lauther@mchp.siemens.de |
| 22 | |
| 23 | Usage: |
| 24 | addr2line [options] addr addr ... |
| 25 | or |
| 26 | addr2line [options] |
| 27 | |
| 28 | both forms write results to stdout, the second form reads addresses |
| 29 | to be converted from stdin. */ |
| 30 | |
| 31 | #include <string.h> |
| 32 | |
| 33 | #include "bfd.h" |
| 34 | #include "getopt.h" |
| 35 | #include "libiberty.h" |
| 36 | #include "demangle.h" |
| 37 | #include "bucomm.h" |
| 38 | |
| 39 | static boolean with_functions; /* -f, show function names. */ |
| 40 | static boolean do_demangle; /* -C, demangle names. */ |
| 41 | static boolean base_names; /* -s, strip directory names. */ |
| 42 | |
| 43 | static int naddr; /* Number of addresses to process. */ |
| 44 | static char **addr; /* Hex addresses to process. */ |
| 45 | |
| 46 | static asymbol **syms; /* Symbol table. */ |
| 47 | |
| 48 | static struct option long_options[] = |
| 49 | { |
| 50 | {"basenames", no_argument, NULL, 's'}, |
| 51 | {"demangle", optional_argument, NULL, 'C'}, |
| 52 | {"exe", required_argument, NULL, 'e'}, |
| 53 | {"functions", no_argument, NULL, 'f'}, |
| 54 | {"target", required_argument, NULL, 'b'}, |
| 55 | {"help", no_argument, NULL, 'H'}, |
| 56 | {"version", no_argument, NULL, 'V'}, |
| 57 | {0, no_argument, 0, 0} |
| 58 | }; |
| 59 | |
| 60 | static void usage PARAMS ((FILE *, int)); |
| 61 | static void slurp_symtab PARAMS ((bfd *)); |
| 62 | static void find_address_in_section PARAMS ((bfd *, asection *, PTR)); |
| 63 | static void translate_addresses PARAMS ((bfd *)); |
| 64 | static void process_file PARAMS ((const char *, const char *)); |
| 65 | \f |
| 66 | /* Print a usage message to STREAM and exit with STATUS. */ |
| 67 | |
| 68 | static void |
| 69 | usage (stream, status) |
| 70 | FILE *stream; |
| 71 | int status; |
| 72 | { |
| 73 | fprintf (stream, _("Usage: %s [option(s)] [addr(s)]\n"), program_name); |
| 74 | fprintf (stream, _(" Convert addresses into line number/file name pairs.\n")); |
| 75 | fprintf (stream, _(" If no addresses are specified on the command line, they will be read from stdin\n")); |
| 76 | fprintf (stream, _(" The options are:\n\ |
| 77 | -b --target=<bfdname> Set the binary file format\n\ |
| 78 | -e --exe=<executable> Set the input file name (default is a.out)\n\ |
| 79 | -s --basenames Strip directory names\n\ |
| 80 | -f --functions Show function names\n\ |
| 81 | -C --demangle[=style] Demangle function names\n\ |
| 82 | -h --help Display this information\n\ |
| 83 | -v --version Display the program's version\n\ |
| 84 | \n")); |
| 85 | |
| 86 | list_supported_targets (program_name, stream); |
| 87 | if (status == 0) |
| 88 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
| 89 | exit (status); |
| 90 | } |
| 91 | \f |
| 92 | /* Read in the symbol table. */ |
| 93 | |
| 94 | static void |
| 95 | slurp_symtab (abfd) |
| 96 | bfd *abfd; |
| 97 | { |
| 98 | long storage; |
| 99 | long symcount; |
| 100 | |
| 101 | if ((bfd_get_file_flags (abfd) & HAS_SYMS) == 0) |
| 102 | return; |
| 103 | |
| 104 | storage = bfd_get_symtab_upper_bound (abfd); |
| 105 | if (storage < 0) |
| 106 | bfd_fatal (bfd_get_filename (abfd)); |
| 107 | |
| 108 | syms = (asymbol **) xmalloc (storage); |
| 109 | |
| 110 | symcount = bfd_canonicalize_symtab (abfd, syms); |
| 111 | if (symcount < 0) |
| 112 | bfd_fatal (bfd_get_filename (abfd)); |
| 113 | } |
| 114 | \f |
| 115 | /* These global variables are used to pass information between |
| 116 | translate_addresses and find_address_in_section. */ |
| 117 | |
| 118 | static bfd_vma pc; |
| 119 | static const char *filename; |
| 120 | static const char *functionname; |
| 121 | static unsigned int line; |
| 122 | static boolean found; |
| 123 | |
| 124 | /* Look for an address in a section. This is called via |
| 125 | bfd_map_over_sections. */ |
| 126 | |
| 127 | static void |
| 128 | find_address_in_section (abfd, section, data) |
| 129 | bfd *abfd; |
| 130 | asection *section; |
| 131 | PTR data ATTRIBUTE_UNUSED; |
| 132 | { |
| 133 | bfd_vma vma; |
| 134 | bfd_size_type size; |
| 135 | |
| 136 | if (found) |
| 137 | return; |
| 138 | |
| 139 | if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0) |
| 140 | return; |
| 141 | |
| 142 | vma = bfd_get_section_vma (abfd, section); |
| 143 | if (pc < vma) |
| 144 | return; |
| 145 | |
| 146 | size = bfd_get_section_size_before_reloc (section); |
| 147 | if (pc >= vma + size) |
| 148 | return; |
| 149 | |
| 150 | found = bfd_find_nearest_line (abfd, section, syms, pc - vma, |
| 151 | &filename, &functionname, &line); |
| 152 | } |
| 153 | |
| 154 | /* Read hexadecimal addresses from stdin, translate into |
| 155 | file_name:line_number and optionally function name. */ |
| 156 | |
| 157 | static void |
| 158 | translate_addresses (abfd) |
| 159 | bfd *abfd; |
| 160 | { |
| 161 | int read_stdin = (naddr == 0); |
| 162 | |
| 163 | for (;;) |
| 164 | { |
| 165 | if (read_stdin) |
| 166 | { |
| 167 | char addr_hex[100]; |
| 168 | |
| 169 | if (fgets (addr_hex, sizeof addr_hex, stdin) == NULL) |
| 170 | break; |
| 171 | pc = bfd_scan_vma (addr_hex, NULL, 16); |
| 172 | } |
| 173 | else |
| 174 | { |
| 175 | if (naddr <= 0) |
| 176 | break; |
| 177 | --naddr; |
| 178 | pc = bfd_scan_vma (*addr++, NULL, 16); |
| 179 | } |
| 180 | |
| 181 | found = false; |
| 182 | bfd_map_over_sections (abfd, find_address_in_section, (PTR) NULL); |
| 183 | |
| 184 | if (! found) |
| 185 | { |
| 186 | if (with_functions) |
| 187 | printf ("??\n"); |
| 188 | printf ("??:0\n"); |
| 189 | } |
| 190 | else |
| 191 | { |
| 192 | if (with_functions) |
| 193 | { |
| 194 | if (functionname == NULL || *functionname == '\0') |
| 195 | printf ("??\n"); |
| 196 | else if (! do_demangle) |
| 197 | printf ("%s\n", functionname); |
| 198 | else |
| 199 | { |
| 200 | char *res; |
| 201 | |
| 202 | res = cplus_demangle (functionname, DMGL_ANSI | DMGL_PARAMS); |
| 203 | if (res == NULL) |
| 204 | printf ("%s\n", functionname); |
| 205 | else |
| 206 | { |
| 207 | printf ("%s\n", res); |
| 208 | free (res); |
| 209 | } |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | if (base_names && filename != NULL) |
| 214 | { |
| 215 | char *h; |
| 216 | |
| 217 | h = strrchr (filename, '/'); |
| 218 | if (h != NULL) |
| 219 | filename = h + 1; |
| 220 | } |
| 221 | |
| 222 | printf ("%s:%u\n", filename ? filename : "??", line); |
| 223 | } |
| 224 | |
| 225 | /* fflush() is essential for using this command as a server |
| 226 | child process that reads addresses from a pipe and responds |
| 227 | with line number information, processing one address at a |
| 228 | time. */ |
| 229 | fflush (stdout); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | /* Process a file. */ |
| 234 | |
| 235 | static void |
| 236 | process_file (filename, target) |
| 237 | const char *filename; |
| 238 | const char *target; |
| 239 | { |
| 240 | bfd *abfd; |
| 241 | char **matching; |
| 242 | |
| 243 | abfd = bfd_openr (filename, target); |
| 244 | if (abfd == NULL) |
| 245 | bfd_fatal (filename); |
| 246 | |
| 247 | if (bfd_check_format (abfd, bfd_archive)) |
| 248 | fatal (_("%s: can not get addresses from archive"), filename); |
| 249 | |
| 250 | if (! bfd_check_format_matches (abfd, bfd_object, &matching)) |
| 251 | { |
| 252 | bfd_nonfatal (bfd_get_filename (abfd)); |
| 253 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) |
| 254 | { |
| 255 | list_matching_formats (matching); |
| 256 | free (matching); |
| 257 | } |
| 258 | xexit (1); |
| 259 | } |
| 260 | |
| 261 | slurp_symtab (abfd); |
| 262 | |
| 263 | translate_addresses (abfd); |
| 264 | |
| 265 | if (syms != NULL) |
| 266 | { |
| 267 | free (syms); |
| 268 | syms = NULL; |
| 269 | } |
| 270 | |
| 271 | bfd_close (abfd); |
| 272 | } |
| 273 | \f |
| 274 | int main PARAMS ((int, char **)); |
| 275 | |
| 276 | int |
| 277 | main (argc, argv) |
| 278 | int argc; |
| 279 | char **argv; |
| 280 | { |
| 281 | const char *filename; |
| 282 | char *target; |
| 283 | int c; |
| 284 | |
| 285 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
| 286 | setlocale (LC_MESSAGES, ""); |
| 287 | #endif |
| 288 | #if defined (HAVE_SETLOCALE) |
| 289 | setlocale (LC_CTYPE, ""); |
| 290 | #endif |
| 291 | bindtextdomain (PACKAGE, LOCALEDIR); |
| 292 | textdomain (PACKAGE); |
| 293 | |
| 294 | program_name = *argv; |
| 295 | xmalloc_set_program_name (program_name); |
| 296 | |
| 297 | bfd_init (); |
| 298 | set_default_bfd_target (); |
| 299 | |
| 300 | filename = NULL; |
| 301 | target = NULL; |
| 302 | while ((c = getopt_long (argc, argv, "b:Ce:sfHhVv", long_options, (int *) 0)) |
| 303 | != EOF) |
| 304 | { |
| 305 | switch (c) |
| 306 | { |
| 307 | case 0: |
| 308 | break; /* We've been given a long option. */ |
| 309 | case 'b': |
| 310 | target = optarg; |
| 311 | break; |
| 312 | case 'C': |
| 313 | do_demangle = true; |
| 314 | if (optarg != NULL) |
| 315 | { |
| 316 | enum demangling_styles style; |
| 317 | |
| 318 | style = cplus_demangle_name_to_style (optarg); |
| 319 | if (style == unknown_demangling) |
| 320 | fatal (_("unknown demangling style `%s'"), |
| 321 | optarg); |
| 322 | |
| 323 | cplus_demangle_set_style (style); |
| 324 | } |
| 325 | break; |
| 326 | case 'e': |
| 327 | filename = optarg; |
| 328 | break; |
| 329 | case 's': |
| 330 | base_names = true; |
| 331 | break; |
| 332 | case 'f': |
| 333 | with_functions = true; |
| 334 | break; |
| 335 | case 'v': |
| 336 | case 'V': |
| 337 | print_version ("addr2line"); |
| 338 | break; |
| 339 | case 'h': |
| 340 | case 'H': |
| 341 | usage (stdout, 0); |
| 342 | break; |
| 343 | default: |
| 344 | usage (stderr, 1); |
| 345 | break; |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | if (filename == NULL) |
| 350 | filename = "a.out"; |
| 351 | |
| 352 | addr = argv + optind; |
| 353 | naddr = argc - optind; |
| 354 | |
| 355 | process_file (filename, target); |
| 356 | |
| 357 | return 0; |
| 358 | } |