| 1 | /* objdump.c -- dump information about an object file. |
| 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999 |
| 3 | Free Software Foundation, Inc. |
| 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 | #include "bfd.h" |
| 22 | #include "getopt.h" |
| 23 | #include "progress.h" |
| 24 | #include "bucomm.h" |
| 25 | #include <ctype.h> |
| 26 | #include "dis-asm.h" |
| 27 | #include "libiberty.h" |
| 28 | #include "demangle.h" |
| 29 | #include "debug.h" |
| 30 | #include "budbg.h" |
| 31 | |
| 32 | #ifdef ANSI_PROTOTYPES |
| 33 | #include <stdarg.h> |
| 34 | #else |
| 35 | #include <varargs.h> |
| 36 | #endif |
| 37 | |
| 38 | /* Internal headers for the ELF .stab-dump code - sorry. */ |
| 39 | #define BYTES_IN_WORD 32 |
| 40 | #include "aout/aout64.h" |
| 41 | |
| 42 | #ifdef NEED_DECLARATION_FPRINTF |
| 43 | /* This is needed by INIT_DISASSEMBLE_INFO. */ |
| 44 | extern int fprintf PARAMS ((FILE *, const char *, ...)); |
| 45 | #endif |
| 46 | |
| 47 | static char *default_target = NULL; /* default at runtime */ |
| 48 | |
| 49 | static int show_version = 0; /* show the version number */ |
| 50 | static int dump_section_contents; /* -s */ |
| 51 | static int dump_section_headers; /* -h */ |
| 52 | static boolean dump_file_header; /* -f */ |
| 53 | static int dump_symtab; /* -t */ |
| 54 | static int dump_dynamic_symtab; /* -T */ |
| 55 | static int dump_reloc_info; /* -r */ |
| 56 | static int dump_dynamic_reloc_info; /* -R */ |
| 57 | static int dump_ar_hdrs; /* -a */ |
| 58 | static int dump_private_headers; /* -p */ |
| 59 | static int prefix_addresses; /* --prefix-addresses */ |
| 60 | static int with_line_numbers; /* -l */ |
| 61 | static boolean with_source_code; /* -S */ |
| 62 | static int show_raw_insn; /* --show-raw-insn */ |
| 63 | static int dump_stab_section_info; /* --stabs */ |
| 64 | static int do_demangle; /* -C, --demangle */ |
| 65 | static boolean disassemble; /* -d */ |
| 66 | static boolean disassemble_all; /* -D */ |
| 67 | static int disassemble_zeroes; /* --disassemble-zeroes */ |
| 68 | static boolean formats_info; /* -i */ |
| 69 | static char *only; /* -j secname */ |
| 70 | static int wide_output; /* -w */ |
| 71 | static bfd_vma start_address = (bfd_vma) -1; /* --start-address */ |
| 72 | static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */ |
| 73 | static int dump_debugging; /* --debugging */ |
| 74 | static bfd_vma adjust_section_vma = 0; /* --adjust-vma */ |
| 75 | |
| 76 | /* Extra info to pass to the disassembler address printing function. */ |
| 77 | struct objdump_disasm_info { |
| 78 | bfd *abfd; |
| 79 | asection *sec; |
| 80 | boolean require_sec; |
| 81 | }; |
| 82 | |
| 83 | /* Architecture to disassemble for, or default if NULL. */ |
| 84 | static char *machine = (char *) NULL; |
| 85 | |
| 86 | /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */ |
| 87 | static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN; |
| 88 | |
| 89 | /* The symbol table. */ |
| 90 | static asymbol **syms; |
| 91 | |
| 92 | /* Number of symbols in `syms'. */ |
| 93 | static long symcount = 0; |
| 94 | |
| 95 | /* The sorted symbol table. */ |
| 96 | static asymbol **sorted_syms; |
| 97 | |
| 98 | /* Number of symbols in `sorted_syms'. */ |
| 99 | static long sorted_symcount = 0; |
| 100 | |
| 101 | /* The dynamic symbol table. */ |
| 102 | static asymbol **dynsyms; |
| 103 | |
| 104 | /* Number of symbols in `dynsyms'. */ |
| 105 | static long dynsymcount = 0; |
| 106 | |
| 107 | /* Static declarations. */ |
| 108 | |
| 109 | static void |
| 110 | usage PARAMS ((FILE *, int)); |
| 111 | |
| 112 | static void |
| 113 | display_file PARAMS ((char *filename, char *target)); |
| 114 | |
| 115 | static void |
| 116 | dump_section_header PARAMS ((bfd *, asection *, PTR)); |
| 117 | |
| 118 | static void |
| 119 | dump_headers PARAMS ((bfd *)); |
| 120 | |
| 121 | static void |
| 122 | dump_data PARAMS ((bfd *abfd)); |
| 123 | |
| 124 | static void |
| 125 | dump_relocs PARAMS ((bfd *abfd)); |
| 126 | |
| 127 | static void |
| 128 | dump_dynamic_relocs PARAMS ((bfd * abfd)); |
| 129 | |
| 130 | static void |
| 131 | dump_reloc_set PARAMS ((bfd *, asection *, arelent **, long)); |
| 132 | |
| 133 | static void |
| 134 | dump_symbols PARAMS ((bfd *abfd, boolean dynamic)); |
| 135 | |
| 136 | static void |
| 137 | dump_bfd_header PARAMS ((bfd *)); |
| 138 | |
| 139 | static void |
| 140 | dump_bfd_private_header PARAMS ((bfd *)); |
| 141 | |
| 142 | static void |
| 143 | display_bfd PARAMS ((bfd *abfd)); |
| 144 | |
| 145 | static void |
| 146 | display_target_list PARAMS ((void)); |
| 147 | |
| 148 | static void |
| 149 | display_info_table PARAMS ((int, int)); |
| 150 | |
| 151 | static void |
| 152 | display_target_tables PARAMS ((void)); |
| 153 | |
| 154 | static void |
| 155 | display_info PARAMS ((void)); |
| 156 | |
| 157 | static void |
| 158 | objdump_print_value PARAMS ((bfd_vma, struct disassemble_info *, boolean)); |
| 159 | |
| 160 | static void |
| 161 | objdump_print_symname PARAMS ((bfd *, struct disassemble_info *, asymbol *)); |
| 162 | |
| 163 | static asymbol * |
| 164 | find_symbol_for_address PARAMS ((bfd *, asection *, bfd_vma, boolean, long *)); |
| 165 | |
| 166 | static void |
| 167 | objdump_print_addr_with_sym PARAMS ((bfd *, asection *, asymbol *, bfd_vma, |
| 168 | struct disassemble_info *, boolean)); |
| 169 | |
| 170 | static void |
| 171 | objdump_print_addr PARAMS ((bfd_vma, struct disassemble_info *, boolean)); |
| 172 | |
| 173 | static void |
| 174 | objdump_print_address PARAMS ((bfd_vma, struct disassemble_info *)); |
| 175 | |
| 176 | static void |
| 177 | show_line PARAMS ((bfd *, asection *, bfd_vma)); |
| 178 | |
| 179 | static void |
| 180 | disassemble_bytes PARAMS ((struct disassemble_info *, disassembler_ftype, |
| 181 | boolean, bfd_byte *, bfd_vma, bfd_vma, |
| 182 | arelent ***, arelent **)); |
| 183 | |
| 184 | static void |
| 185 | disassemble_data PARAMS ((bfd *)); |
| 186 | |
| 187 | static const char * |
| 188 | endian_string PARAMS ((enum bfd_endian)); |
| 189 | |
| 190 | static asymbol ** |
| 191 | slurp_symtab PARAMS ((bfd *)); |
| 192 | |
| 193 | static asymbol ** |
| 194 | slurp_dynamic_symtab PARAMS ((bfd *)); |
| 195 | |
| 196 | static long |
| 197 | remove_useless_symbols PARAMS ((asymbol **, long)); |
| 198 | |
| 199 | static int |
| 200 | compare_symbols PARAMS ((const PTR, const PTR)); |
| 201 | |
| 202 | static int |
| 203 | compare_relocs PARAMS ((const PTR, const PTR)); |
| 204 | |
| 205 | static void |
| 206 | dump_stabs PARAMS ((bfd *)); |
| 207 | |
| 208 | static boolean |
| 209 | read_section_stabs PARAMS ((bfd *, const char *, const char *)); |
| 210 | |
| 211 | static void |
| 212 | print_section_stabs PARAMS ((bfd *, const char *, const char *)); |
| 213 | \f |
| 214 | static void |
| 215 | usage (stream, status) |
| 216 | FILE *stream; |
| 217 | int status; |
| 218 | { |
| 219 | fprintf (stream, _("\ |
| 220 | Usage: %s [-ahifCdDprRtTxsSlw] [-b bfdname] [-m machine] [-j section-name]\n\ |
| 221 | [--archive-headers] [--target=bfdname] [--debugging] [--disassemble]\n\ |
| 222 | [--disassemble-all] [--disassemble-zeroes] [--file-headers]\n\ |
| 223 | [--section-headers] [--headers]\n\ |
| 224 | [--info] [--section=section-name] [--line-numbers] [--source]\n"), |
| 225 | program_name); |
| 226 | fprintf (stream, _("\ |
| 227 | [--architecture=machine] [--reloc] [--full-contents] [--stabs]\n\ |
| 228 | [--syms] [--all-headers] [--dynamic-syms] [--dynamic-reloc]\n\ |
| 229 | [--wide] [--version] [--help] [--private-headers]\n\ |
| 230 | [--start-address=addr] [--stop-address=addr]\n\ |
| 231 | [--prefix-addresses] [--[no-]show-raw-insn] [--demangle]\n\ |
| 232 | [--adjust-vma=offset] [-EB|-EL] [--endian={big|little}] objfile...\n\ |
| 233 | at least one option besides -l (--line-numbers) must be given\n")); |
| 234 | list_supported_targets (program_name, stream); |
| 235 | if (status == 0) |
| 236 | fprintf (stream, _("Report bugs to bug-gnu-utils@gnu.org\n")); |
| 237 | exit (status); |
| 238 | } |
| 239 | |
| 240 | /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ |
| 241 | |
| 242 | #define OPTION_ENDIAN (150) |
| 243 | #define OPTION_START_ADDRESS (OPTION_ENDIAN + 1) |
| 244 | #define OPTION_STOP_ADDRESS (OPTION_START_ADDRESS + 1) |
| 245 | #define OPTION_ADJUST_VMA (OPTION_STOP_ADDRESS + 1) |
| 246 | |
| 247 | static struct option long_options[]= |
| 248 | { |
| 249 | {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA}, |
| 250 | {"all-headers", no_argument, NULL, 'x'}, |
| 251 | {"private-headers", no_argument, NULL, 'p'}, |
| 252 | {"architecture", required_argument, NULL, 'm'}, |
| 253 | {"archive-headers", no_argument, NULL, 'a'}, |
| 254 | {"debugging", no_argument, &dump_debugging, 1}, |
| 255 | {"demangle", no_argument, &do_demangle, 1}, |
| 256 | {"disassemble", no_argument, NULL, 'd'}, |
| 257 | {"disassemble-all", no_argument, NULL, 'D'}, |
| 258 | {"disassemble-zeroes", no_argument, &disassemble_zeroes, 1}, |
| 259 | {"dynamic-reloc", no_argument, NULL, 'R'}, |
| 260 | {"dynamic-syms", no_argument, NULL, 'T'}, |
| 261 | {"endian", required_argument, NULL, OPTION_ENDIAN}, |
| 262 | {"file-headers", no_argument, NULL, 'f'}, |
| 263 | {"full-contents", no_argument, NULL, 's'}, |
| 264 | {"headers", no_argument, NULL, 'h'}, |
| 265 | {"help", no_argument, NULL, 'H'}, |
| 266 | {"info", no_argument, NULL, 'i'}, |
| 267 | {"line-numbers", no_argument, NULL, 'l'}, |
| 268 | {"no-show-raw-insn", no_argument, &show_raw_insn, -1}, |
| 269 | {"prefix-addresses", no_argument, &prefix_addresses, 1}, |
| 270 | {"reloc", no_argument, NULL, 'r'}, |
| 271 | {"section", required_argument, NULL, 'j'}, |
| 272 | {"section-headers", no_argument, NULL, 'h'}, |
| 273 | {"show-raw-insn", no_argument, &show_raw_insn, 1}, |
| 274 | {"source", no_argument, NULL, 'S'}, |
| 275 | {"stabs", no_argument, &dump_stab_section_info, 1}, |
| 276 | {"start-address", required_argument, NULL, OPTION_START_ADDRESS}, |
| 277 | {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS}, |
| 278 | {"syms", no_argument, NULL, 't'}, |
| 279 | {"target", required_argument, NULL, 'b'}, |
| 280 | {"version", no_argument, &show_version, 1}, |
| 281 | {"wide", no_argument, &wide_output, 'w'}, |
| 282 | {0, no_argument, 0, 0} |
| 283 | }; |
| 284 | \f |
| 285 | static void |
| 286 | dump_section_header (abfd, section, ignored) |
| 287 | bfd *abfd; |
| 288 | asection *section; |
| 289 | PTR ignored; |
| 290 | { |
| 291 | char *comma = ""; |
| 292 | |
| 293 | printf ("%3d %-13s %08lx ", section->index, |
| 294 | bfd_get_section_name (abfd, section), |
| 295 | (unsigned long) bfd_section_size (abfd, section)); |
| 296 | printf_vma (bfd_get_section_vma (abfd, section)); |
| 297 | printf (" "); |
| 298 | printf_vma (section->lma); |
| 299 | printf (" %08lx 2**%u", section->filepos, |
| 300 | bfd_get_section_alignment (abfd, section)); |
| 301 | if (! wide_output) |
| 302 | printf ("\n "); |
| 303 | printf (" "); |
| 304 | |
| 305 | #define PF(x, y) \ |
| 306 | if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; } |
| 307 | |
| 308 | PF (SEC_HAS_CONTENTS, "CONTENTS"); |
| 309 | PF (SEC_ALLOC, "ALLOC"); |
| 310 | PF (SEC_CONSTRUCTOR, "CONSTRUCTOR"); |
| 311 | PF (SEC_CONSTRUCTOR_TEXT, "CONSTRUCTOR TEXT"); |
| 312 | PF (SEC_CONSTRUCTOR_DATA, "CONSTRUCTOR DATA"); |
| 313 | PF (SEC_CONSTRUCTOR_BSS, "CONSTRUCTOR BSS"); |
| 314 | PF (SEC_LOAD, "LOAD"); |
| 315 | PF (SEC_RELOC, "RELOC"); |
| 316 | #ifdef SEC_BALIGN |
| 317 | PF (SEC_BALIGN, "BALIGN"); |
| 318 | #endif |
| 319 | PF (SEC_READONLY, "READONLY"); |
| 320 | PF (SEC_CODE, "CODE"); |
| 321 | PF (SEC_DATA, "DATA"); |
| 322 | PF (SEC_ROM, "ROM"); |
| 323 | PF (SEC_DEBUGGING, "DEBUGGING"); |
| 324 | PF (SEC_NEVER_LOAD, "NEVER_LOAD"); |
| 325 | PF (SEC_EXCLUDE, "EXCLUDE"); |
| 326 | PF (SEC_SORT_ENTRIES, "SORT_ENTRIES"); |
| 327 | |
| 328 | if ((section->flags & SEC_LINK_ONCE) != 0) |
| 329 | { |
| 330 | const char *ls; |
| 331 | |
| 332 | switch (section->flags & SEC_LINK_DUPLICATES) |
| 333 | { |
| 334 | default: |
| 335 | abort (); |
| 336 | case SEC_LINK_DUPLICATES_DISCARD: |
| 337 | ls = "LINK_ONCE_DISCARD"; |
| 338 | break; |
| 339 | case SEC_LINK_DUPLICATES_ONE_ONLY: |
| 340 | ls = "LINK_ONCE_ONE_ONLY"; |
| 341 | break; |
| 342 | case SEC_LINK_DUPLICATES_SAME_SIZE: |
| 343 | ls = "LINK_ONCE_SAME_SIZE"; |
| 344 | break; |
| 345 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: |
| 346 | ls = "LINK_ONCE_SAME_CONTENTS"; |
| 347 | break; |
| 348 | } |
| 349 | printf ("%s%s", comma, ls); |
| 350 | comma = ", "; |
| 351 | } |
| 352 | |
| 353 | printf ("\n"); |
| 354 | #undef PF |
| 355 | } |
| 356 | |
| 357 | static void |
| 358 | dump_headers (abfd) |
| 359 | bfd *abfd; |
| 360 | { |
| 361 | printf (_("Sections:\n")); |
| 362 | #ifndef BFD64 |
| 363 | printf (_("Idx Name Size VMA LMA File off Algn\n")); |
| 364 | #else |
| 365 | printf (_("Idx Name Size VMA LMA File off Algn\n")); |
| 366 | #endif |
| 367 | bfd_map_over_sections (abfd, dump_section_header, (PTR) NULL); |
| 368 | } |
| 369 | \f |
| 370 | static asymbol ** |
| 371 | slurp_symtab (abfd) |
| 372 | bfd *abfd; |
| 373 | { |
| 374 | asymbol **sy = (asymbol **) NULL; |
| 375 | long storage; |
| 376 | |
| 377 | if (!(bfd_get_file_flags (abfd) & HAS_SYMS)) |
| 378 | { |
| 379 | fprintf (stderr, _("%s: no symbols\n"), bfd_get_filename (abfd)); |
| 380 | symcount = 0; |
| 381 | return NULL; |
| 382 | } |
| 383 | |
| 384 | storage = bfd_get_symtab_upper_bound (abfd); |
| 385 | if (storage < 0) |
| 386 | bfd_fatal (bfd_get_filename (abfd)); |
| 387 | |
| 388 | if (storage) |
| 389 | { |
| 390 | sy = (asymbol **) xmalloc (storage); |
| 391 | } |
| 392 | symcount = bfd_canonicalize_symtab (abfd, sy); |
| 393 | if (symcount < 0) |
| 394 | bfd_fatal (bfd_get_filename (abfd)); |
| 395 | if (symcount == 0) |
| 396 | fprintf (stderr, _("%s: no symbols\n"), bfd_get_filename (abfd)); |
| 397 | return sy; |
| 398 | } |
| 399 | |
| 400 | /* Read in the dynamic symbols. */ |
| 401 | |
| 402 | static asymbol ** |
| 403 | slurp_dynamic_symtab (abfd) |
| 404 | bfd *abfd; |
| 405 | { |
| 406 | asymbol **sy = (asymbol **) NULL; |
| 407 | long storage; |
| 408 | |
| 409 | storage = bfd_get_dynamic_symtab_upper_bound (abfd); |
| 410 | if (storage < 0) |
| 411 | { |
| 412 | if (!(bfd_get_file_flags (abfd) & DYNAMIC)) |
| 413 | { |
| 414 | fprintf (stderr, _("%s: %s: not a dynamic object\n"), |
| 415 | program_name, bfd_get_filename (abfd)); |
| 416 | dynsymcount = 0; |
| 417 | return NULL; |
| 418 | } |
| 419 | |
| 420 | bfd_fatal (bfd_get_filename (abfd)); |
| 421 | } |
| 422 | |
| 423 | if (storage) |
| 424 | { |
| 425 | sy = (asymbol **) xmalloc (storage); |
| 426 | } |
| 427 | dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy); |
| 428 | if (dynsymcount < 0) |
| 429 | bfd_fatal (bfd_get_filename (abfd)); |
| 430 | if (dynsymcount == 0) |
| 431 | fprintf (stderr, _("%s: %s: No dynamic symbols\n"), |
| 432 | program_name, bfd_get_filename (abfd)); |
| 433 | return sy; |
| 434 | } |
| 435 | |
| 436 | /* Filter out (in place) symbols that are useless for disassembly. |
| 437 | COUNT is the number of elements in SYMBOLS. |
| 438 | Return the number of useful symbols. */ |
| 439 | |
| 440 | static long |
| 441 | remove_useless_symbols (symbols, count) |
| 442 | asymbol **symbols; |
| 443 | long count; |
| 444 | { |
| 445 | register asymbol **in_ptr = symbols, **out_ptr = symbols; |
| 446 | |
| 447 | while (--count >= 0) |
| 448 | { |
| 449 | asymbol *sym = *in_ptr++; |
| 450 | |
| 451 | if (sym->name == NULL || sym->name[0] == '\0') |
| 452 | continue; |
| 453 | if (sym->flags & (BSF_DEBUGGING)) |
| 454 | continue; |
| 455 | if (bfd_is_und_section (sym->section) |
| 456 | || bfd_is_com_section (sym->section)) |
| 457 | continue; |
| 458 | |
| 459 | *out_ptr++ = sym; |
| 460 | } |
| 461 | return out_ptr - symbols; |
| 462 | } |
| 463 | |
| 464 | /* Sort symbols into value order. */ |
| 465 | |
| 466 | static int |
| 467 | compare_symbols (ap, bp) |
| 468 | const PTR ap; |
| 469 | const PTR bp; |
| 470 | { |
| 471 | const asymbol *a = *(const asymbol **)ap; |
| 472 | const asymbol *b = *(const asymbol **)bp; |
| 473 | const char *an, *bn; |
| 474 | size_t anl, bnl; |
| 475 | boolean af, bf; |
| 476 | flagword aflags, bflags; |
| 477 | |
| 478 | if (bfd_asymbol_value (a) > bfd_asymbol_value (b)) |
| 479 | return 1; |
| 480 | else if (bfd_asymbol_value (a) < bfd_asymbol_value (b)) |
| 481 | return -1; |
| 482 | |
| 483 | if (a->section > b->section) |
| 484 | return 1; |
| 485 | else if (a->section < b->section) |
| 486 | return -1; |
| 487 | |
| 488 | an = bfd_asymbol_name (a); |
| 489 | bn = bfd_asymbol_name (b); |
| 490 | anl = strlen (an); |
| 491 | bnl = strlen (bn); |
| 492 | |
| 493 | /* The symbols gnu_compiled and gcc2_compiled convey no real |
| 494 | information, so put them after other symbols with the same value. */ |
| 495 | |
| 496 | af = (strstr (an, "gnu_compiled") != NULL |
| 497 | || strstr (an, "gcc2_compiled") != NULL); |
| 498 | bf = (strstr (bn, "gnu_compiled") != NULL |
| 499 | || strstr (bn, "gcc2_compiled") != NULL); |
| 500 | |
| 501 | if (af && ! bf) |
| 502 | return 1; |
| 503 | if (! af && bf) |
| 504 | return -1; |
| 505 | |
| 506 | /* We use a heuristic for the file name, to try to sort it after |
| 507 | more useful symbols. It may not work on non Unix systems, but it |
| 508 | doesn't really matter; the only difference is precisely which |
| 509 | symbol names get printed. */ |
| 510 | |
| 511 | #define file_symbol(s, sn, snl) \ |
| 512 | (((s)->flags & BSF_FILE) != 0 \ |
| 513 | || ((sn)[(snl) - 2] == '.' \ |
| 514 | && ((sn)[(snl) - 1] == 'o' \ |
| 515 | || (sn)[(snl) - 1] == 'a'))) |
| 516 | |
| 517 | af = file_symbol (a, an, anl); |
| 518 | bf = file_symbol (b, bn, bnl); |
| 519 | |
| 520 | if (af && ! bf) |
| 521 | return 1; |
| 522 | if (! af && bf) |
| 523 | return -1; |
| 524 | |
| 525 | /* Try to sort global symbols before local symbols before function |
| 526 | symbols before debugging symbols. */ |
| 527 | |
| 528 | aflags = a->flags; |
| 529 | bflags = b->flags; |
| 530 | |
| 531 | if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING)) |
| 532 | { |
| 533 | if ((aflags & BSF_DEBUGGING) != 0) |
| 534 | return 1; |
| 535 | else |
| 536 | return -1; |
| 537 | } |
| 538 | if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION)) |
| 539 | { |
| 540 | if ((aflags & BSF_FUNCTION) != 0) |
| 541 | return -1; |
| 542 | else |
| 543 | return 1; |
| 544 | } |
| 545 | if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL)) |
| 546 | { |
| 547 | if ((aflags & BSF_LOCAL) != 0) |
| 548 | return 1; |
| 549 | else |
| 550 | return -1; |
| 551 | } |
| 552 | if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL)) |
| 553 | { |
| 554 | if ((aflags & BSF_GLOBAL) != 0) |
| 555 | return -1; |
| 556 | else |
| 557 | return 1; |
| 558 | } |
| 559 | |
| 560 | /* Symbols that start with '.' might be section names, so sort them |
| 561 | after symbols that don't start with '.'. */ |
| 562 | if (an[0] == '.' && bn[0] != '.') |
| 563 | return 1; |
| 564 | if (an[0] != '.' && bn[0] == '.') |
| 565 | return -1; |
| 566 | |
| 567 | /* Finally, if we can't distinguish them in any other way, try to |
| 568 | get consistent results by sorting the symbols by name. */ |
| 569 | return strcmp (an, bn); |
| 570 | } |
| 571 | |
| 572 | /* Sort relocs into address order. */ |
| 573 | |
| 574 | static int |
| 575 | compare_relocs (ap, bp) |
| 576 | const PTR ap; |
| 577 | const PTR bp; |
| 578 | { |
| 579 | const arelent *a = *(const arelent **)ap; |
| 580 | const arelent *b = *(const arelent **)bp; |
| 581 | |
| 582 | if (a->address > b->address) |
| 583 | return 1; |
| 584 | else if (a->address < b->address) |
| 585 | return -1; |
| 586 | |
| 587 | /* So that associated relocations tied to the same address show up |
| 588 | in the correct order, we don't do any further sorting. */ |
| 589 | if (a > b) |
| 590 | return 1; |
| 591 | else if (a < b) |
| 592 | return -1; |
| 593 | else |
| 594 | return 0; |
| 595 | } |
| 596 | |
| 597 | /* Print VMA to STREAM. If SKIP_ZEROES is true, omit leading zeroes. */ |
| 598 | |
| 599 | static void |
| 600 | objdump_print_value (vma, info, skip_zeroes) |
| 601 | bfd_vma vma; |
| 602 | struct disassemble_info *info; |
| 603 | boolean skip_zeroes; |
| 604 | { |
| 605 | char buf[30]; |
| 606 | char *p; |
| 607 | |
| 608 | sprintf_vma (buf, vma); |
| 609 | if (! skip_zeroes) |
| 610 | p = buf; |
| 611 | else |
| 612 | { |
| 613 | for (p = buf; *p == '0'; ++p) |
| 614 | ; |
| 615 | if (*p == '\0') |
| 616 | --p; |
| 617 | } |
| 618 | (*info->fprintf_func) (info->stream, "%s", p); |
| 619 | } |
| 620 | |
| 621 | /* Print the name of a symbol. */ |
| 622 | |
| 623 | static void |
| 624 | objdump_print_symname (abfd, info, sym) |
| 625 | bfd *abfd; |
| 626 | struct disassemble_info *info; |
| 627 | asymbol *sym; |
| 628 | { |
| 629 | char *alloc; |
| 630 | const char *name; |
| 631 | const char *print; |
| 632 | |
| 633 | alloc = NULL; |
| 634 | name = bfd_asymbol_name (sym); |
| 635 | if (! do_demangle || name[0] == '\0') |
| 636 | print = name; |
| 637 | else |
| 638 | { |
| 639 | /* Demangle the name. */ |
| 640 | if (bfd_get_symbol_leading_char (abfd) == name[0]) |
| 641 | ++name; |
| 642 | |
| 643 | alloc = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); |
| 644 | if (alloc == NULL) |
| 645 | print = name; |
| 646 | else |
| 647 | print = alloc; |
| 648 | } |
| 649 | |
| 650 | if (info != NULL) |
| 651 | (*info->fprintf_func) (info->stream, "%s", print); |
| 652 | else |
| 653 | printf ("%s", print); |
| 654 | |
| 655 | if (alloc != NULL) |
| 656 | free (alloc); |
| 657 | } |
| 658 | |
| 659 | /* Locate a symbol given a bfd, a section, and a VMA. If REQUIRE_SEC |
| 660 | is true, then always require the symbol to be in the section. This |
| 661 | returns NULL if there is no suitable symbol. If PLACE is not NULL, |
| 662 | then *PLACE is set to the index of the symbol in sorted_syms. */ |
| 663 | |
| 664 | static asymbol * |
| 665 | find_symbol_for_address (abfd, sec, vma, require_sec, place) |
| 666 | bfd *abfd; |
| 667 | asection *sec; |
| 668 | bfd_vma vma; |
| 669 | boolean require_sec; |
| 670 | long *place; |
| 671 | { |
| 672 | /* @@ Would it speed things up to cache the last two symbols returned, |
| 673 | and maybe their address ranges? For many processors, only one memory |
| 674 | operand can be present at a time, so the 2-entry cache wouldn't be |
| 675 | constantly churned by code doing heavy memory accesses. */ |
| 676 | |
| 677 | /* Indices in `sorted_syms'. */ |
| 678 | long min = 0; |
| 679 | long max = sorted_symcount; |
| 680 | long thisplace; |
| 681 | |
| 682 | if (sorted_symcount < 1) |
| 683 | return NULL; |
| 684 | |
| 685 | /* Perform a binary search looking for the closest symbol to the |
| 686 | required value. We are searching the range (min, max]. */ |
| 687 | while (min + 1 < max) |
| 688 | { |
| 689 | asymbol *sym; |
| 690 | |
| 691 | thisplace = (max + min) / 2; |
| 692 | sym = sorted_syms[thisplace]; |
| 693 | |
| 694 | if (bfd_asymbol_value (sym) > vma) |
| 695 | max = thisplace; |
| 696 | else if (bfd_asymbol_value (sym) < vma) |
| 697 | min = thisplace; |
| 698 | else |
| 699 | { |
| 700 | min = thisplace; |
| 701 | break; |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | /* The symbol we want is now in min, the low end of the range we |
| 706 | were searching. If there are several symbols with the same |
| 707 | value, we want the first one. */ |
| 708 | thisplace = min; |
| 709 | while (thisplace > 0 |
| 710 | && (bfd_asymbol_value (sorted_syms[thisplace]) |
| 711 | == bfd_asymbol_value (sorted_syms[thisplace - 1]))) |
| 712 | --thisplace; |
| 713 | |
| 714 | /* If the file is relocateable, and the symbol could be from this |
| 715 | section, prefer a symbol from this section over symbols from |
| 716 | others, even if the other symbol's value might be closer. |
| 717 | |
| 718 | Note that this may be wrong for some symbol references if the |
| 719 | sections have overlapping memory ranges, but in that case there's |
| 720 | no way to tell what's desired without looking at the relocation |
| 721 | table. */ |
| 722 | |
| 723 | if (sorted_syms[thisplace]->section != sec |
| 724 | && (require_sec |
| 725 | || ((abfd->flags & HAS_RELOC) != 0 |
| 726 | && vma >= bfd_get_section_vma (abfd, sec) |
| 727 | && vma < (bfd_get_section_vma (abfd, sec) |
| 728 | + bfd_section_size (abfd, sec))))) |
| 729 | { |
| 730 | long i; |
| 731 | |
| 732 | for (i = thisplace + 1; i < sorted_symcount; i++) |
| 733 | { |
| 734 | if (bfd_asymbol_value (sorted_syms[i]) |
| 735 | != bfd_asymbol_value (sorted_syms[thisplace])) |
| 736 | break; |
| 737 | } |
| 738 | --i; |
| 739 | for (; i >= 0; i--) |
| 740 | { |
| 741 | if (sorted_syms[i]->section == sec |
| 742 | && (i == 0 |
| 743 | || sorted_syms[i - 1]->section != sec |
| 744 | || (bfd_asymbol_value (sorted_syms[i]) |
| 745 | != bfd_asymbol_value (sorted_syms[i - 1])))) |
| 746 | { |
| 747 | thisplace = i; |
| 748 | break; |
| 749 | } |
| 750 | } |
| 751 | |
| 752 | if (sorted_syms[thisplace]->section != sec) |
| 753 | { |
| 754 | /* We didn't find a good symbol with a smaller value. |
| 755 | Look for one with a larger value. */ |
| 756 | for (i = thisplace + 1; i < sorted_symcount; i++) |
| 757 | { |
| 758 | if (sorted_syms[i]->section == sec) |
| 759 | { |
| 760 | thisplace = i; |
| 761 | break; |
| 762 | } |
| 763 | } |
| 764 | } |
| 765 | |
| 766 | if (sorted_syms[thisplace]->section != sec |
| 767 | && (require_sec |
| 768 | || ((abfd->flags & HAS_RELOC) != 0 |
| 769 | && vma >= bfd_get_section_vma (abfd, sec) |
| 770 | && vma < (bfd_get_section_vma (abfd, sec) |
| 771 | + bfd_section_size (abfd, sec))))) |
| 772 | { |
| 773 | /* There is no suitable symbol. */ |
| 774 | return NULL; |
| 775 | } |
| 776 | } |
| 777 | |
| 778 | if (place != NULL) |
| 779 | *place = thisplace; |
| 780 | |
| 781 | return sorted_syms[thisplace]; |
| 782 | } |
| 783 | |
| 784 | /* Print an address to INFO symbolically. */ |
| 785 | |
| 786 | static void |
| 787 | objdump_print_addr_with_sym (abfd, sec, sym, vma, info, skip_zeroes) |
| 788 | bfd *abfd; |
| 789 | asection *sec; |
| 790 | asymbol *sym; |
| 791 | bfd_vma vma; |
| 792 | struct disassemble_info *info; |
| 793 | boolean skip_zeroes; |
| 794 | { |
| 795 | objdump_print_value (vma, info, skip_zeroes); |
| 796 | |
| 797 | if (sym == NULL) |
| 798 | { |
| 799 | bfd_vma secaddr; |
| 800 | |
| 801 | (*info->fprintf_func) (info->stream, " <%s", |
| 802 | bfd_get_section_name (abfd, sec)); |
| 803 | secaddr = bfd_get_section_vma (abfd, sec); |
| 804 | if (vma < secaddr) |
| 805 | { |
| 806 | (*info->fprintf_func) (info->stream, "-0x"); |
| 807 | objdump_print_value (secaddr - vma, info, true); |
| 808 | } |
| 809 | else if (vma > secaddr) |
| 810 | { |
| 811 | (*info->fprintf_func) (info->stream, "+0x"); |
| 812 | objdump_print_value (vma - secaddr, info, true); |
| 813 | } |
| 814 | (*info->fprintf_func) (info->stream, ">"); |
| 815 | } |
| 816 | else |
| 817 | { |
| 818 | (*info->fprintf_func) (info->stream, " <"); |
| 819 | objdump_print_symname (abfd, info, sym); |
| 820 | if (bfd_asymbol_value (sym) > vma) |
| 821 | { |
| 822 | (*info->fprintf_func) (info->stream, "-0x"); |
| 823 | objdump_print_value (bfd_asymbol_value (sym) - vma, info, true); |
| 824 | } |
| 825 | else if (vma > bfd_asymbol_value (sym)) |
| 826 | { |
| 827 | (*info->fprintf_func) (info->stream, "+0x"); |
| 828 | objdump_print_value (vma - bfd_asymbol_value (sym), info, true); |
| 829 | } |
| 830 | (*info->fprintf_func) (info->stream, ">"); |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | /* Print VMA to INFO, symbolically if possible. If SKIP_ZEROES is |
| 835 | true, don't output leading zeroes. */ |
| 836 | |
| 837 | static void |
| 838 | objdump_print_addr (vma, info, skip_zeroes) |
| 839 | bfd_vma vma; |
| 840 | struct disassemble_info *info; |
| 841 | boolean skip_zeroes; |
| 842 | { |
| 843 | struct objdump_disasm_info *aux; |
| 844 | asymbol *sym; |
| 845 | |
| 846 | if (sorted_symcount < 1) |
| 847 | { |
| 848 | (*info->fprintf_func) (info->stream, "0x"); |
| 849 | objdump_print_value (vma, info, skip_zeroes); |
| 850 | return; |
| 851 | } |
| 852 | |
| 853 | aux = (struct objdump_disasm_info *) info->application_data; |
| 854 | sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec, |
| 855 | (long *) NULL); |
| 856 | objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info, |
| 857 | skip_zeroes); |
| 858 | } |
| 859 | |
| 860 | /* Print VMA to INFO. This function is passed to the disassembler |
| 861 | routine. */ |
| 862 | |
| 863 | static void |
| 864 | objdump_print_address (vma, info) |
| 865 | bfd_vma vma; |
| 866 | struct disassemble_info *info; |
| 867 | { |
| 868 | objdump_print_addr (vma, info, ! prefix_addresses); |
| 869 | } |
| 870 | |
| 871 | /* Determine of the given address has a symbol associated with it. */ |
| 872 | |
| 873 | static int |
| 874 | objdump_symbol_at_address (vma, info) |
| 875 | bfd_vma vma; |
| 876 | struct disassemble_info * info; |
| 877 | { |
| 878 | struct objdump_disasm_info * aux; |
| 879 | asymbol * sym; |
| 880 | |
| 881 | /* No symbols - do not bother checking. */ |
| 882 | if (sorted_symcount < 1) |
| 883 | return 0; |
| 884 | |
| 885 | aux = (struct objdump_disasm_info *) info->application_data; |
| 886 | sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec, |
| 887 | (long *) NULL); |
| 888 | |
| 889 | return (sym != NULL && (bfd_asymbol_value (sym) == vma)); |
| 890 | } |
| 891 | |
| 892 | /* Hold the last function name and the last line number we displayed |
| 893 | in a disassembly. */ |
| 894 | |
| 895 | static char *prev_functionname; |
| 896 | static unsigned int prev_line; |
| 897 | |
| 898 | /* We keep a list of all files that we have seen when doing a |
| 899 | dissassembly with source, so that we know how much of the file to |
| 900 | display. This can be important for inlined functions. */ |
| 901 | |
| 902 | struct print_file_list |
| 903 | { |
| 904 | struct print_file_list *next; |
| 905 | char *filename; |
| 906 | unsigned int line; |
| 907 | FILE *f; |
| 908 | }; |
| 909 | |
| 910 | static struct print_file_list *print_files; |
| 911 | |
| 912 | /* The number of preceding context lines to show when we start |
| 913 | displaying a file for the first time. */ |
| 914 | |
| 915 | #define SHOW_PRECEDING_CONTEXT_LINES (5) |
| 916 | |
| 917 | /* Skip ahead to a given line in a file, optionally printing each |
| 918 | line. */ |
| 919 | |
| 920 | static void |
| 921 | skip_to_line PARAMS ((struct print_file_list *, unsigned int, boolean)); |
| 922 | |
| 923 | static void |
| 924 | skip_to_line (p, line, show) |
| 925 | struct print_file_list *p; |
| 926 | unsigned int line; |
| 927 | boolean show; |
| 928 | { |
| 929 | while (p->line < line) |
| 930 | { |
| 931 | char buf[100]; |
| 932 | |
| 933 | if (fgets (buf, sizeof buf, p->f) == NULL) |
| 934 | { |
| 935 | fclose (p->f); |
| 936 | p->f = NULL; |
| 937 | break; |
| 938 | } |
| 939 | |
| 940 | if (show) |
| 941 | printf ("%s", buf); |
| 942 | |
| 943 | if (strchr (buf, '\n') != NULL) |
| 944 | ++p->line; |
| 945 | } |
| 946 | } |
| 947 | |
| 948 | /* Show the line number, or the source line, in a dissassembly |
| 949 | listing. */ |
| 950 | |
| 951 | static void |
| 952 | show_line (abfd, section, off) |
| 953 | bfd *abfd; |
| 954 | asection *section; |
| 955 | bfd_vma off; |
| 956 | { |
| 957 | CONST char *filename; |
| 958 | CONST char *functionname; |
| 959 | unsigned int line; |
| 960 | |
| 961 | if (! with_line_numbers && ! with_source_code) |
| 962 | return; |
| 963 | |
| 964 | if (! bfd_find_nearest_line (abfd, section, syms, off, &filename, |
| 965 | &functionname, &line)) |
| 966 | return; |
| 967 | |
| 968 | if (filename != NULL && *filename == '\0') |
| 969 | filename = NULL; |
| 970 | if (functionname != NULL && *functionname == '\0') |
| 971 | functionname = NULL; |
| 972 | |
| 973 | if (with_line_numbers) |
| 974 | { |
| 975 | if (functionname != NULL |
| 976 | && (prev_functionname == NULL |
| 977 | || strcmp (functionname, prev_functionname) != 0)) |
| 978 | printf ("%s():\n", functionname); |
| 979 | if (line > 0 && line != prev_line) |
| 980 | printf ("%s:%u\n", filename == NULL ? "???" : filename, line); |
| 981 | } |
| 982 | |
| 983 | if (with_source_code |
| 984 | && filename != NULL |
| 985 | && line > 0) |
| 986 | { |
| 987 | struct print_file_list **pp, *p; |
| 988 | |
| 989 | for (pp = &print_files; *pp != NULL; pp = &(*pp)->next) |
| 990 | if (strcmp ((*pp)->filename, filename) == 0) |
| 991 | break; |
| 992 | p = *pp; |
| 993 | |
| 994 | if (p != NULL) |
| 995 | { |
| 996 | if (p != print_files) |
| 997 | { |
| 998 | int l; |
| 999 | |
| 1000 | /* We have reencountered a file name which we saw |
| 1001 | earlier. This implies that either we are dumping out |
| 1002 | code from an included file, or the same file was |
| 1003 | linked in more than once. There are two common cases |
| 1004 | of an included file: inline functions in a header |
| 1005 | file, and a bison or flex skeleton file. In the |
| 1006 | former case we want to just start printing (but we |
| 1007 | back up a few lines to give context); in the latter |
| 1008 | case we want to continue from where we left off. I |
| 1009 | can't think of a good way to distinguish the cases, |
| 1010 | so I used a heuristic based on the file name. */ |
| 1011 | if (strcmp (p->filename + strlen (p->filename) - 2, ".h") != 0) |
| 1012 | l = p->line; |
| 1013 | else |
| 1014 | { |
| 1015 | l = line - SHOW_PRECEDING_CONTEXT_LINES; |
| 1016 | if (l <= 0) |
| 1017 | l = 1; |
| 1018 | } |
| 1019 | |
| 1020 | if (p->f == NULL) |
| 1021 | { |
| 1022 | p->f = fopen (p->filename, "r"); |
| 1023 | p->line = 0; |
| 1024 | } |
| 1025 | if (p->f != NULL) |
| 1026 | skip_to_line (p, l, false); |
| 1027 | |
| 1028 | if (print_files->f != NULL) |
| 1029 | { |
| 1030 | fclose (print_files->f); |
| 1031 | print_files->f = NULL; |
| 1032 | } |
| 1033 | } |
| 1034 | |
| 1035 | if (p->f != NULL) |
| 1036 | { |
| 1037 | skip_to_line (p, line, true); |
| 1038 | *pp = p->next; |
| 1039 | p->next = print_files; |
| 1040 | print_files = p; |
| 1041 | } |
| 1042 | } |
| 1043 | else |
| 1044 | { |
| 1045 | FILE *f; |
| 1046 | |
| 1047 | f = fopen (filename, "r"); |
| 1048 | if (f != NULL) |
| 1049 | { |
| 1050 | int l; |
| 1051 | |
| 1052 | p = ((struct print_file_list *) |
| 1053 | xmalloc (sizeof (struct print_file_list))); |
| 1054 | p->filename = xmalloc (strlen (filename) + 1); |
| 1055 | strcpy (p->filename, filename); |
| 1056 | p->line = 0; |
| 1057 | p->f = f; |
| 1058 | |
| 1059 | if (print_files != NULL && print_files->f != NULL) |
| 1060 | { |
| 1061 | fclose (print_files->f); |
| 1062 | print_files->f = NULL; |
| 1063 | } |
| 1064 | p->next = print_files; |
| 1065 | print_files = p; |
| 1066 | |
| 1067 | l = line - SHOW_PRECEDING_CONTEXT_LINES; |
| 1068 | if (l <= 0) |
| 1069 | l = 1; |
| 1070 | skip_to_line (p, l, false); |
| 1071 | if (p->f != NULL) |
| 1072 | skip_to_line (p, line, true); |
| 1073 | } |
| 1074 | } |
| 1075 | } |
| 1076 | |
| 1077 | if (functionname != NULL |
| 1078 | && (prev_functionname == NULL |
| 1079 | || strcmp (functionname, prev_functionname) != 0)) |
| 1080 | { |
| 1081 | if (prev_functionname != NULL) |
| 1082 | free (prev_functionname); |
| 1083 | prev_functionname = xmalloc (strlen (functionname) + 1); |
| 1084 | strcpy (prev_functionname, functionname); |
| 1085 | } |
| 1086 | |
| 1087 | if (line > 0 && line != prev_line) |
| 1088 | prev_line = line; |
| 1089 | } |
| 1090 | |
| 1091 | /* Pseudo FILE object for strings. */ |
| 1092 | typedef struct |
| 1093 | { |
| 1094 | char *buffer; |
| 1095 | size_t size; |
| 1096 | char *current; |
| 1097 | } SFILE; |
| 1098 | |
| 1099 | /* sprintf to a "stream" */ |
| 1100 | |
| 1101 | static int |
| 1102 | #ifdef ANSI_PROTOTYPES |
| 1103 | objdump_sprintf (SFILE *f, const char *format, ...) |
| 1104 | #else |
| 1105 | objdump_sprintf (va_alist) |
| 1106 | va_dcl |
| 1107 | #endif |
| 1108 | { |
| 1109 | #ifndef ANSI_PROTOTYPES |
| 1110 | SFILE *f; |
| 1111 | const char *format; |
| 1112 | #endif |
| 1113 | char *buf; |
| 1114 | va_list args; |
| 1115 | size_t n; |
| 1116 | |
| 1117 | #ifdef ANSI_PROTOTYPES |
| 1118 | va_start (args, format); |
| 1119 | #else |
| 1120 | va_start (args); |
| 1121 | f = va_arg (args, SFILE *); |
| 1122 | format = va_arg (args, const char *); |
| 1123 | #endif |
| 1124 | |
| 1125 | vasprintf (&buf, format, args); |
| 1126 | |
| 1127 | va_end (args); |
| 1128 | |
| 1129 | if (buf == NULL) |
| 1130 | { |
| 1131 | fprintf (stderr, _("Out of virtual memory\n")); |
| 1132 | exit (1); |
| 1133 | } |
| 1134 | |
| 1135 | n = strlen (buf); |
| 1136 | |
| 1137 | while ((f->buffer + f->size) - f->current < n + 1) |
| 1138 | { |
| 1139 | size_t curroff; |
| 1140 | |
| 1141 | curroff = f->current - f->buffer; |
| 1142 | f->size *= 2; |
| 1143 | f->buffer = xrealloc (f->buffer, f->size); |
| 1144 | f->current = f->buffer + curroff; |
| 1145 | } |
| 1146 | |
| 1147 | memcpy (f->current, buf, n); |
| 1148 | f->current += n; |
| 1149 | f->current[0] = '\0'; |
| 1150 | |
| 1151 | free (buf); |
| 1152 | |
| 1153 | return n; |
| 1154 | } |
| 1155 | |
| 1156 | /* The number of zeroes we want to see before we start skipping them. |
| 1157 | The number is arbitrarily chosen. */ |
| 1158 | |
| 1159 | #define SKIP_ZEROES (8) |
| 1160 | |
| 1161 | /* The number of zeroes to skip at the end of a section. If the |
| 1162 | number of zeroes at the end is between SKIP_ZEROES_AT_END and |
| 1163 | SKIP_ZEROES, they will be disassembled. If there are fewer than |
| 1164 | SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic |
| 1165 | attempt to avoid disassembling zeroes inserted by section |
| 1166 | alignment. */ |
| 1167 | |
| 1168 | #define SKIP_ZEROES_AT_END (3) |
| 1169 | |
| 1170 | /* Disassemble some data in memory between given values. */ |
| 1171 | |
| 1172 | static void |
| 1173 | disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp, |
| 1174 | relppend) |
| 1175 | struct disassemble_info *info; |
| 1176 | disassembler_ftype disassemble_fn; |
| 1177 | boolean insns; |
| 1178 | bfd_byte *data; |
| 1179 | bfd_vma start; |
| 1180 | bfd_vma stop; |
| 1181 | arelent ***relppp; |
| 1182 | arelent **relppend; |
| 1183 | { |
| 1184 | struct objdump_disasm_info *aux; |
| 1185 | asection *section; |
| 1186 | int bytes_per_line; |
| 1187 | boolean done_dot; |
| 1188 | int skip_addr_chars; |
| 1189 | bfd_vma i; |
| 1190 | |
| 1191 | aux = (struct objdump_disasm_info *) info->application_data; |
| 1192 | section = aux->sec; |
| 1193 | |
| 1194 | if (insns) |
| 1195 | bytes_per_line = 4; |
| 1196 | else |
| 1197 | bytes_per_line = 16; |
| 1198 | |
| 1199 | /* Figure out how many characters to skip at the start of an |
| 1200 | address, to make the disassembly look nicer. We discard leading |
| 1201 | zeroes in chunks of 4, ensuring that there is always a leading |
| 1202 | zero remaining. */ |
| 1203 | skip_addr_chars = 0; |
| 1204 | if (! prefix_addresses) |
| 1205 | { |
| 1206 | char buf[30]; |
| 1207 | char *s; |
| 1208 | |
| 1209 | sprintf_vma (buf, |
| 1210 | section->vma + bfd_section_size (section->owner, section)); |
| 1211 | s = buf; |
| 1212 | while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0' |
| 1213 | && s[4] == '0') |
| 1214 | { |
| 1215 | skip_addr_chars += 4; |
| 1216 | s += 4; |
| 1217 | } |
| 1218 | } |
| 1219 | |
| 1220 | info->insn_info_valid = 0; |
| 1221 | |
| 1222 | done_dot = false; |
| 1223 | i = start; |
| 1224 | while (i < stop) |
| 1225 | { |
| 1226 | bfd_vma z; |
| 1227 | int bytes = 0; |
| 1228 | boolean need_nl = false; |
| 1229 | |
| 1230 | /* If we see more than SKIP_ZEROES bytes of zeroes, we just |
| 1231 | print `...'. */ |
| 1232 | for (z = i; z < stop; z++) |
| 1233 | if (data[z] != 0) |
| 1234 | break; |
| 1235 | if (! disassemble_zeroes |
| 1236 | && (info->insn_info_valid == 0 |
| 1237 | || info->branch_delay_insns == 0) |
| 1238 | && (z - i >= SKIP_ZEROES |
| 1239 | || (z == stop && z - i < SKIP_ZEROES_AT_END))) |
| 1240 | { |
| 1241 | printf ("\t...\n"); |
| 1242 | |
| 1243 | /* If there are more nonzero bytes to follow, we only skip |
| 1244 | zeroes in multiples of 4, to try to avoid running over |
| 1245 | the start of an instruction which happens to start with |
| 1246 | zero. */ |
| 1247 | if (z != stop) |
| 1248 | z = i + ((z - i) &~ 3); |
| 1249 | |
| 1250 | bytes = z - i; |
| 1251 | } |
| 1252 | else |
| 1253 | { |
| 1254 | char buf[50]; |
| 1255 | SFILE sfile; |
| 1256 | int bpc = 0; |
| 1257 | int pb = 0; |
| 1258 | |
| 1259 | done_dot = false; |
| 1260 | |
| 1261 | if (with_line_numbers || with_source_code) |
| 1262 | show_line (aux->abfd, section, i); |
| 1263 | |
| 1264 | if (! prefix_addresses) |
| 1265 | { |
| 1266 | char *s; |
| 1267 | |
| 1268 | sprintf_vma (buf, section->vma + i); |
| 1269 | for (s = buf + skip_addr_chars; *s == '0'; s++) |
| 1270 | *s = ' '; |
| 1271 | if (*s == '\0') |
| 1272 | *--s = '0'; |
| 1273 | printf ("%s:\t", buf + skip_addr_chars); |
| 1274 | } |
| 1275 | else |
| 1276 | { |
| 1277 | aux->require_sec = true; |
| 1278 | objdump_print_address (section->vma + i, info); |
| 1279 | aux->require_sec = false; |
| 1280 | putchar (' '); |
| 1281 | } |
| 1282 | |
| 1283 | if (insns) |
| 1284 | { |
| 1285 | sfile.size = 120; |
| 1286 | sfile.buffer = xmalloc (sfile.size); |
| 1287 | sfile.current = sfile.buffer; |
| 1288 | info->fprintf_func = (fprintf_ftype) objdump_sprintf; |
| 1289 | info->stream = (FILE *) &sfile; |
| 1290 | info->bytes_per_line = 0; |
| 1291 | info->bytes_per_chunk = 0; |
| 1292 | |
| 1293 | /* FIXME: This is wrong. It tests the number of bytes |
| 1294 | in the last instruction, not the current one. */ |
| 1295 | if (*relppp < relppend |
| 1296 | && (**relppp)->address >= i |
| 1297 | && (**relppp)->address < i + bytes) |
| 1298 | info->flags = INSN_HAS_RELOC; |
| 1299 | else |
| 1300 | info->flags = 0; |
| 1301 | |
| 1302 | bytes = (*disassemble_fn) (section->vma + i, info); |
| 1303 | info->fprintf_func = (fprintf_ftype) fprintf; |
| 1304 | info->stream = stdout; |
| 1305 | if (info->bytes_per_line != 0) |
| 1306 | bytes_per_line = info->bytes_per_line; |
| 1307 | if (bytes < 0) |
| 1308 | break; |
| 1309 | } |
| 1310 | else |
| 1311 | { |
| 1312 | long j; |
| 1313 | |
| 1314 | bytes = bytes_per_line; |
| 1315 | if (i + bytes > stop) |
| 1316 | bytes = stop - i; |
| 1317 | |
| 1318 | for (j = i; j < i + bytes; ++j) |
| 1319 | { |
| 1320 | if (isprint (data[j])) |
| 1321 | buf[j - i] = data[j]; |
| 1322 | else |
| 1323 | buf[j - i] = '.'; |
| 1324 | } |
| 1325 | buf[j - i] = '\0'; |
| 1326 | } |
| 1327 | |
| 1328 | if (prefix_addresses |
| 1329 | ? show_raw_insn > 0 |
| 1330 | : show_raw_insn >= 0) |
| 1331 | { |
| 1332 | long j; |
| 1333 | |
| 1334 | /* If ! prefix_addresses and ! wide_output, we print |
| 1335 | bytes_per_line bytes per line. */ |
| 1336 | pb = bytes; |
| 1337 | if (pb > bytes_per_line && ! prefix_addresses && ! wide_output) |
| 1338 | pb = bytes_per_line; |
| 1339 | |
| 1340 | if (info->bytes_per_chunk) |
| 1341 | bpc = info->bytes_per_chunk; |
| 1342 | else |
| 1343 | bpc = 1; |
| 1344 | |
| 1345 | for (j = i; j < i + pb; j += bpc) |
| 1346 | { |
| 1347 | int k; |
| 1348 | if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE) |
| 1349 | { |
| 1350 | for (k = bpc - 1; k >= 0; k--) |
| 1351 | printf ("%02x", (unsigned) data[j + k]); |
| 1352 | putchar (' '); |
| 1353 | } |
| 1354 | else |
| 1355 | { |
| 1356 | for (k = 0; k < bpc; k++) |
| 1357 | printf ("%02x", (unsigned) data[j + k]); |
| 1358 | putchar (' '); |
| 1359 | } |
| 1360 | } |
| 1361 | |
| 1362 | for (; pb < bytes_per_line; pb += bpc) |
| 1363 | { |
| 1364 | int k; |
| 1365 | |
| 1366 | for (k = 0; k < bpc; k++) |
| 1367 | printf (" "); |
| 1368 | putchar (' '); |
| 1369 | } |
| 1370 | |
| 1371 | /* Separate raw data from instruction by extra space. */ |
| 1372 | if (insns) |
| 1373 | putchar ('\t'); |
| 1374 | else |
| 1375 | printf (" "); |
| 1376 | } |
| 1377 | |
| 1378 | if (! insns) |
| 1379 | printf ("%s", buf); |
| 1380 | else |
| 1381 | { |
| 1382 | printf ("%s", sfile.buffer); |
| 1383 | free (sfile.buffer); |
| 1384 | } |
| 1385 | |
| 1386 | if (prefix_addresses |
| 1387 | ? show_raw_insn > 0 |
| 1388 | : show_raw_insn >= 0) |
| 1389 | { |
| 1390 | while (pb < bytes) |
| 1391 | { |
| 1392 | long j; |
| 1393 | char *s; |
| 1394 | |
| 1395 | putchar ('\n'); |
| 1396 | j = i + pb; |
| 1397 | |
| 1398 | sprintf_vma (buf, section->vma + j); |
| 1399 | for (s = buf + skip_addr_chars; *s == '0'; s++) |
| 1400 | *s = ' '; |
| 1401 | if (*s == '\0') |
| 1402 | *--s = '0'; |
| 1403 | printf ("%s:\t", buf + skip_addr_chars); |
| 1404 | |
| 1405 | pb += bytes_per_line; |
| 1406 | if (pb > bytes) |
| 1407 | pb = bytes; |
| 1408 | for (; j < i + pb; j += bpc) |
| 1409 | { |
| 1410 | int k; |
| 1411 | |
| 1412 | if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE) |
| 1413 | { |
| 1414 | for (k = bpc - 1; k >= 0; k--) |
| 1415 | printf ("%02x", (unsigned) data[j + k]); |
| 1416 | putchar (' '); |
| 1417 | } |
| 1418 | else |
| 1419 | { |
| 1420 | for (k = 0; k < bpc; k++) |
| 1421 | printf ("%02x", (unsigned) data[j + k]); |
| 1422 | putchar (' '); |
| 1423 | } |
| 1424 | } |
| 1425 | } |
| 1426 | } |
| 1427 | |
| 1428 | if (!wide_output) |
| 1429 | putchar ('\n'); |
| 1430 | else |
| 1431 | need_nl = true; |
| 1432 | } |
| 1433 | |
| 1434 | if (dump_reloc_info |
| 1435 | && (section->flags & SEC_RELOC) != 0) |
| 1436 | { |
| 1437 | while ((*relppp) < relppend |
| 1438 | && ((**relppp)->address >= (bfd_vma) i |
| 1439 | && (**relppp)->address < (bfd_vma) i + bytes)) |
| 1440 | { |
| 1441 | arelent *q; |
| 1442 | |
| 1443 | q = **relppp; |
| 1444 | |
| 1445 | if (wide_output) |
| 1446 | putchar ('\t'); |
| 1447 | else |
| 1448 | printf ("\t\t\t"); |
| 1449 | |
| 1450 | objdump_print_value (section->vma + q->address, info, true); |
| 1451 | |
| 1452 | printf (": %s\t", q->howto->name); |
| 1453 | |
| 1454 | if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL) |
| 1455 | printf ("*unknown*"); |
| 1456 | else |
| 1457 | { |
| 1458 | const char *sym_name; |
| 1459 | |
| 1460 | sym_name = bfd_asymbol_name (*q->sym_ptr_ptr); |
| 1461 | if (sym_name != NULL && *sym_name != '\0') |
| 1462 | objdump_print_symname (aux->abfd, info, *q->sym_ptr_ptr); |
| 1463 | else |
| 1464 | { |
| 1465 | asection *sym_sec; |
| 1466 | |
| 1467 | sym_sec = bfd_get_section (*q->sym_ptr_ptr); |
| 1468 | sym_name = bfd_get_section_name (aux->abfd, sym_sec); |
| 1469 | if (sym_name == NULL || *sym_name == '\0') |
| 1470 | sym_name = "*unknown*"; |
| 1471 | printf ("%s", sym_name); |
| 1472 | } |
| 1473 | } |
| 1474 | |
| 1475 | if (q->addend) |
| 1476 | { |
| 1477 | printf ("+0x"); |
| 1478 | objdump_print_value (q->addend, info, true); |
| 1479 | } |
| 1480 | |
| 1481 | printf ("\n"); |
| 1482 | need_nl = false; |
| 1483 | ++(*relppp); |
| 1484 | } |
| 1485 | } |
| 1486 | |
| 1487 | if (need_nl) |
| 1488 | printf ("\n"); |
| 1489 | |
| 1490 | i += bytes; |
| 1491 | } |
| 1492 | } |
| 1493 | |
| 1494 | /* Disassemble the contents of an object file. */ |
| 1495 | |
| 1496 | static void |
| 1497 | disassemble_data (abfd) |
| 1498 | bfd *abfd; |
| 1499 | { |
| 1500 | long i; |
| 1501 | disassembler_ftype disassemble_fn; |
| 1502 | struct disassemble_info disasm_info; |
| 1503 | struct objdump_disasm_info aux; |
| 1504 | asection *section; |
| 1505 | |
| 1506 | print_files = NULL; |
| 1507 | prev_functionname = NULL; |
| 1508 | prev_line = -1; |
| 1509 | |
| 1510 | /* We make a copy of syms to sort. We don't want to sort syms |
| 1511 | because that will screw up the relocs. */ |
| 1512 | sorted_syms = (asymbol **) xmalloc (symcount * sizeof (asymbol *)); |
| 1513 | memcpy (sorted_syms, syms, symcount * sizeof (asymbol *)); |
| 1514 | |
| 1515 | sorted_symcount = remove_useless_symbols (sorted_syms, symcount); |
| 1516 | |
| 1517 | /* Sort the symbols into section and symbol order */ |
| 1518 | qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols); |
| 1519 | |
| 1520 | INIT_DISASSEMBLE_INFO(disasm_info, stdout, fprintf); |
| 1521 | disasm_info.application_data = (PTR) &aux; |
| 1522 | aux.abfd = abfd; |
| 1523 | aux.require_sec = false; |
| 1524 | disasm_info.print_address_func = objdump_print_address; |
| 1525 | disasm_info.symbol_at_address_func = objdump_symbol_at_address; |
| 1526 | |
| 1527 | if (machine != (char *) NULL) |
| 1528 | { |
| 1529 | const bfd_arch_info_type *info = bfd_scan_arch (machine); |
| 1530 | if (info == NULL) |
| 1531 | { |
| 1532 | fprintf (stderr, _("%s: Can't use supplied machine %s\n"), |
| 1533 | program_name, |
| 1534 | machine); |
| 1535 | exit (1); |
| 1536 | } |
| 1537 | abfd->arch_info = info; |
| 1538 | } |
| 1539 | |
| 1540 | if (endian != BFD_ENDIAN_UNKNOWN) |
| 1541 | { |
| 1542 | struct bfd_target *xvec; |
| 1543 | |
| 1544 | xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target)); |
| 1545 | memcpy (xvec, abfd->xvec, sizeof (struct bfd_target)); |
| 1546 | xvec->byteorder = endian; |
| 1547 | abfd->xvec = xvec; |
| 1548 | } |
| 1549 | |
| 1550 | disassemble_fn = disassembler (abfd); |
| 1551 | if (!disassemble_fn) |
| 1552 | { |
| 1553 | fprintf (stderr, _("%s: Can't disassemble for architecture %s\n"), |
| 1554 | program_name, |
| 1555 | bfd_printable_arch_mach (bfd_get_arch (abfd), 0)); |
| 1556 | return; |
| 1557 | } |
| 1558 | |
| 1559 | disasm_info.flavour = bfd_get_flavour (abfd); |
| 1560 | disasm_info.arch = bfd_get_arch (abfd); |
| 1561 | disasm_info.mach = bfd_get_mach (abfd); |
| 1562 | if (bfd_big_endian (abfd)) |
| 1563 | disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG; |
| 1564 | else if (bfd_little_endian (abfd)) |
| 1565 | disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE; |
| 1566 | else |
| 1567 | /* ??? Aborting here seems too drastic. We could default to big or little |
| 1568 | instead. */ |
| 1569 | disasm_info.endian = BFD_ENDIAN_UNKNOWN; |
| 1570 | |
| 1571 | for (section = abfd->sections; |
| 1572 | section != (asection *) NULL; |
| 1573 | section = section->next) |
| 1574 | { |
| 1575 | bfd_byte *data = NULL; |
| 1576 | bfd_size_type datasize = 0; |
| 1577 | arelent **relbuf = NULL; |
| 1578 | arelent **relpp = NULL; |
| 1579 | arelent **relppend = NULL; |
| 1580 | long stop; |
| 1581 | asymbol *sym = NULL; |
| 1582 | long place = 0; |
| 1583 | |
| 1584 | if ((section->flags & SEC_LOAD) == 0 |
| 1585 | || (! disassemble_all |
| 1586 | && only == NULL |
| 1587 | && (section->flags & SEC_CODE) == 0)) |
| 1588 | continue; |
| 1589 | if (only != (char *) NULL && strcmp (only, section->name) != 0) |
| 1590 | continue; |
| 1591 | |
| 1592 | if (dump_reloc_info |
| 1593 | && (section->flags & SEC_RELOC) != 0) |
| 1594 | { |
| 1595 | long relsize; |
| 1596 | |
| 1597 | relsize = bfd_get_reloc_upper_bound (abfd, section); |
| 1598 | if (relsize < 0) |
| 1599 | bfd_fatal (bfd_get_filename (abfd)); |
| 1600 | |
| 1601 | if (relsize > 0) |
| 1602 | { |
| 1603 | long relcount; |
| 1604 | |
| 1605 | relbuf = (arelent **) xmalloc (relsize); |
| 1606 | relcount = bfd_canonicalize_reloc (abfd, section, relbuf, syms); |
| 1607 | if (relcount < 0) |
| 1608 | bfd_fatal (bfd_get_filename (abfd)); |
| 1609 | |
| 1610 | /* Sort the relocs by address. */ |
| 1611 | qsort (relbuf, relcount, sizeof (arelent *), compare_relocs); |
| 1612 | |
| 1613 | relpp = relbuf; |
| 1614 | relppend = relpp + relcount; |
| 1615 | |
| 1616 | /* Skip over the relocs belonging to addresses below the |
| 1617 | start address. */ |
| 1618 | if (start_address != (bfd_vma) -1) |
| 1619 | { |
| 1620 | while (relpp < relppend |
| 1621 | && (*relpp)->address < start_address) |
| 1622 | ++relpp; |
| 1623 | } |
| 1624 | } |
| 1625 | } |
| 1626 | |
| 1627 | printf (_("Disassembly of section %s:\n"), section->name); |
| 1628 | |
| 1629 | datasize = bfd_get_section_size_before_reloc (section); |
| 1630 | if (datasize == 0) |
| 1631 | continue; |
| 1632 | |
| 1633 | data = (bfd_byte *) xmalloc ((size_t) datasize); |
| 1634 | |
| 1635 | bfd_get_section_contents (abfd, section, data, 0, datasize); |
| 1636 | |
| 1637 | aux.sec = section; |
| 1638 | disasm_info.buffer = data; |
| 1639 | disasm_info.buffer_vma = section->vma; |
| 1640 | disasm_info.buffer_length = datasize; |
| 1641 | if (start_address == (bfd_vma) -1 |
| 1642 | || start_address < disasm_info.buffer_vma) |
| 1643 | i = 0; |
| 1644 | else |
| 1645 | i = start_address - disasm_info.buffer_vma; |
| 1646 | if (stop_address == (bfd_vma) -1) |
| 1647 | stop = datasize; |
| 1648 | else |
| 1649 | { |
| 1650 | if (stop_address < disasm_info.buffer_vma) |
| 1651 | stop = 0; |
| 1652 | else |
| 1653 | stop = stop_address - disasm_info.buffer_vma; |
| 1654 | if (stop > disasm_info.buffer_length) |
| 1655 | stop = disasm_info.buffer_length; |
| 1656 | } |
| 1657 | |
| 1658 | sym = find_symbol_for_address (abfd, section, section->vma + i, |
| 1659 | true, &place); |
| 1660 | |
| 1661 | while (i < stop) |
| 1662 | { |
| 1663 | asymbol *nextsym; |
| 1664 | long nextstop; |
| 1665 | boolean insns; |
| 1666 | |
| 1667 | if (sym != NULL && bfd_asymbol_value (sym) <= section->vma + i) |
| 1668 | { |
| 1669 | int x; |
| 1670 | |
| 1671 | for (x = place; |
| 1672 | (x < sorted_symcount |
| 1673 | && bfd_asymbol_value (sorted_syms[x]) <= section->vma + i); |
| 1674 | ++x) |
| 1675 | continue; |
| 1676 | disasm_info.symbols = & sorted_syms[place]; |
| 1677 | disasm_info.num_symbols = x - place; |
| 1678 | } |
| 1679 | else |
| 1680 | disasm_info.symbols = NULL; |
| 1681 | |
| 1682 | if (! prefix_addresses) |
| 1683 | { |
| 1684 | printf ("\n"); |
| 1685 | objdump_print_addr_with_sym (abfd, section, sym, |
| 1686 | section->vma + i, |
| 1687 | &disasm_info, |
| 1688 | false); |
| 1689 | printf (":\n"); |
| 1690 | } |
| 1691 | |
| 1692 | if (sym != NULL && bfd_asymbol_value (sym) > section->vma + i) |
| 1693 | nextsym = sym; |
| 1694 | else if (sym == NULL) |
| 1695 | nextsym = NULL; |
| 1696 | else |
| 1697 | { |
| 1698 | while (place < sorted_symcount |
| 1699 | /* ??? Why the test for != section? */ |
| 1700 | && (sorted_syms[place]->section != section |
| 1701 | || (bfd_asymbol_value (sorted_syms[place]) |
| 1702 | <= bfd_asymbol_value (sym)))) |
| 1703 | ++place; |
| 1704 | if (place >= sorted_symcount) |
| 1705 | nextsym = NULL; |
| 1706 | else |
| 1707 | nextsym = sorted_syms[place]; |
| 1708 | } |
| 1709 | |
| 1710 | if (sym != NULL && bfd_asymbol_value (sym) > section->vma + i) |
| 1711 | { |
| 1712 | nextstop = bfd_asymbol_value (sym) - section->vma; |
| 1713 | if (nextstop > stop) |
| 1714 | nextstop = stop; |
| 1715 | } |
| 1716 | else if (nextsym == NULL) |
| 1717 | nextstop = stop; |
| 1718 | else |
| 1719 | { |
| 1720 | nextstop = bfd_asymbol_value (nextsym) - section->vma; |
| 1721 | if (nextstop > stop) |
| 1722 | nextstop = stop; |
| 1723 | } |
| 1724 | |
| 1725 | /* If a symbol is explicitly marked as being an object |
| 1726 | rather than a function, just dump the bytes without |
| 1727 | disassembling them. */ |
| 1728 | if (disassemble_all |
| 1729 | || sym == NULL |
| 1730 | || bfd_asymbol_value (sym) > section->vma + i |
| 1731 | || ((sym->flags & BSF_OBJECT) == 0 |
| 1732 | && (strstr (bfd_asymbol_name (sym), "gnu_compiled") |
| 1733 | == NULL) |
| 1734 | && (strstr (bfd_asymbol_name (sym), "gcc2_compiled") |
| 1735 | == NULL)) |
| 1736 | || (sym->flags & BSF_FUNCTION) != 0) |
| 1737 | insns = true; |
| 1738 | else |
| 1739 | insns = false; |
| 1740 | |
| 1741 | disassemble_bytes (&disasm_info, disassemble_fn, insns, data, i, |
| 1742 | nextstop, &relpp, relppend); |
| 1743 | |
| 1744 | i = nextstop; |
| 1745 | sym = nextsym; |
| 1746 | } |
| 1747 | |
| 1748 | free (data); |
| 1749 | if (relbuf != NULL) |
| 1750 | free (relbuf); |
| 1751 | } |
| 1752 | free (sorted_syms); |
| 1753 | } |
| 1754 | \f |
| 1755 | |
| 1756 | /* Define a table of stab values and print-strings. We wish the initializer |
| 1757 | could be a direct-mapped table, but instead we build one the first |
| 1758 | time we need it. */ |
| 1759 | |
| 1760 | static void dump_section_stabs PARAMS ((bfd *abfd, char *stabsect_name, |
| 1761 | char *strsect_name)); |
| 1762 | |
| 1763 | /* Dump the stabs sections from an object file that has a section that |
| 1764 | uses Sun stabs encoding. */ |
| 1765 | |
| 1766 | static void |
| 1767 | dump_stabs (abfd) |
| 1768 | bfd *abfd; |
| 1769 | { |
| 1770 | dump_section_stabs (abfd, ".stab", ".stabstr"); |
| 1771 | dump_section_stabs (abfd, ".stab.excl", ".stab.exclstr"); |
| 1772 | dump_section_stabs (abfd, ".stab.index", ".stab.indexstr"); |
| 1773 | dump_section_stabs (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$"); |
| 1774 | } |
| 1775 | |
| 1776 | static bfd_byte *stabs; |
| 1777 | static bfd_size_type stab_size; |
| 1778 | |
| 1779 | static char *strtab; |
| 1780 | static bfd_size_type stabstr_size; |
| 1781 | |
| 1782 | /* Read ABFD's stabs section STABSECT_NAME into `stabs' |
| 1783 | and string table section STRSECT_NAME into `strtab'. |
| 1784 | If the section exists and was read, allocate the space and return true. |
| 1785 | Otherwise return false. */ |
| 1786 | |
| 1787 | static boolean |
| 1788 | read_section_stabs (abfd, stabsect_name, strsect_name) |
| 1789 | bfd *abfd; |
| 1790 | const char *stabsect_name; |
| 1791 | const char *strsect_name; |
| 1792 | { |
| 1793 | asection *stabsect, *stabstrsect; |
| 1794 | |
| 1795 | stabsect = bfd_get_section_by_name (abfd, stabsect_name); |
| 1796 | if (0 == stabsect) |
| 1797 | { |
| 1798 | printf (_("No %s section present\n\n"), stabsect_name); |
| 1799 | return false; |
| 1800 | } |
| 1801 | |
| 1802 | stabstrsect = bfd_get_section_by_name (abfd, strsect_name); |
| 1803 | if (0 == stabstrsect) |
| 1804 | { |
| 1805 | fprintf (stderr, _("%s: %s has no %s section\n"), program_name, |
| 1806 | bfd_get_filename (abfd), strsect_name); |
| 1807 | return false; |
| 1808 | } |
| 1809 | |
| 1810 | stab_size = bfd_section_size (abfd, stabsect); |
| 1811 | stabstr_size = bfd_section_size (abfd, stabstrsect); |
| 1812 | |
| 1813 | stabs = (bfd_byte *) xmalloc (stab_size); |
| 1814 | strtab = (char *) xmalloc (stabstr_size); |
| 1815 | |
| 1816 | if (! bfd_get_section_contents (abfd, stabsect, (PTR) stabs, 0, stab_size)) |
| 1817 | { |
| 1818 | fprintf (stderr, _("%s: Reading %s section of %s failed: %s\n"), |
| 1819 | program_name, stabsect_name, bfd_get_filename (abfd), |
| 1820 | bfd_errmsg (bfd_get_error ())); |
| 1821 | free (stabs); |
| 1822 | free (strtab); |
| 1823 | return false; |
| 1824 | } |
| 1825 | |
| 1826 | if (! bfd_get_section_contents (abfd, stabstrsect, (PTR) strtab, 0, |
| 1827 | stabstr_size)) |
| 1828 | { |
| 1829 | fprintf (stderr, _("%s: Reading %s section of %s failed: %s\n"), |
| 1830 | program_name, strsect_name, bfd_get_filename (abfd), |
| 1831 | bfd_errmsg (bfd_get_error ())); |
| 1832 | free (stabs); |
| 1833 | free (strtab); |
| 1834 | return false; |
| 1835 | } |
| 1836 | |
| 1837 | return true; |
| 1838 | } |
| 1839 | |
| 1840 | /* Stabs entries use a 12 byte format: |
| 1841 | 4 byte string table index |
| 1842 | 1 byte stab type |
| 1843 | 1 byte stab other field |
| 1844 | 2 byte stab desc field |
| 1845 | 4 byte stab value |
| 1846 | FIXME: This will have to change for a 64 bit object format. */ |
| 1847 | |
| 1848 | #define STRDXOFF (0) |
| 1849 | #define TYPEOFF (4) |
| 1850 | #define OTHEROFF (5) |
| 1851 | #define DESCOFF (6) |
| 1852 | #define VALOFF (8) |
| 1853 | #define STABSIZE (12) |
| 1854 | |
| 1855 | /* Print ABFD's stabs section STABSECT_NAME (in `stabs'), |
| 1856 | using string table section STRSECT_NAME (in `strtab'). */ |
| 1857 | |
| 1858 | static void |
| 1859 | print_section_stabs (abfd, stabsect_name, strsect_name) |
| 1860 | bfd *abfd; |
| 1861 | const char *stabsect_name; |
| 1862 | const char *strsect_name; |
| 1863 | { |
| 1864 | int i; |
| 1865 | unsigned file_string_table_offset = 0, next_file_string_table_offset = 0; |
| 1866 | bfd_byte *stabp, *stabs_end; |
| 1867 | |
| 1868 | stabp = stabs; |
| 1869 | stabs_end = stabp + stab_size; |
| 1870 | |
| 1871 | printf (_("Contents of %s section:\n\n"), stabsect_name); |
| 1872 | printf ("Symnum n_type n_othr n_desc n_value n_strx String\n"); |
| 1873 | |
| 1874 | /* Loop through all symbols and print them. |
| 1875 | |
| 1876 | We start the index at -1 because there is a dummy symbol on |
| 1877 | the front of stabs-in-{coff,elf} sections that supplies sizes. */ |
| 1878 | |
| 1879 | for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++) |
| 1880 | { |
| 1881 | const char *name; |
| 1882 | unsigned long strx; |
| 1883 | unsigned char type, other; |
| 1884 | unsigned short desc; |
| 1885 | bfd_vma value; |
| 1886 | |
| 1887 | strx = bfd_h_get_32 (abfd, stabp + STRDXOFF); |
| 1888 | type = bfd_h_get_8 (abfd, stabp + TYPEOFF); |
| 1889 | other = bfd_h_get_8 (abfd, stabp + OTHEROFF); |
| 1890 | desc = bfd_h_get_16 (abfd, stabp + DESCOFF); |
| 1891 | value = bfd_h_get_32 (abfd, stabp + VALOFF); |
| 1892 | |
| 1893 | printf ("\n%-6d ", i); |
| 1894 | /* Either print the stab name, or, if unnamed, print its number |
| 1895 | again (makes consistent formatting for tools like awk). */ |
| 1896 | name = bfd_get_stab_name (type); |
| 1897 | if (name != NULL) |
| 1898 | printf ("%-6s", name); |
| 1899 | else if (type == N_UNDF) |
| 1900 | printf ("HdrSym"); |
| 1901 | else |
| 1902 | printf ("%-6d", type); |
| 1903 | printf (" %-6d %-6d ", other, desc); |
| 1904 | printf_vma (value); |
| 1905 | printf (" %-6lu", strx); |
| 1906 | |
| 1907 | /* Symbols with type == 0 (N_UNDF) specify the length of the |
| 1908 | string table associated with this file. We use that info |
| 1909 | to know how to relocate the *next* file's string table indices. */ |
| 1910 | |
| 1911 | if (type == N_UNDF) |
| 1912 | { |
| 1913 | file_string_table_offset = next_file_string_table_offset; |
| 1914 | next_file_string_table_offset += value; |
| 1915 | } |
| 1916 | else |
| 1917 | { |
| 1918 | /* Using the (possibly updated) string table offset, print the |
| 1919 | string (if any) associated with this symbol. */ |
| 1920 | |
| 1921 | if ((strx + file_string_table_offset) < stabstr_size) |
| 1922 | printf (" %s", &strtab[strx + file_string_table_offset]); |
| 1923 | else |
| 1924 | printf (" *"); |
| 1925 | } |
| 1926 | } |
| 1927 | printf ("\n\n"); |
| 1928 | } |
| 1929 | |
| 1930 | static void |
| 1931 | dump_section_stabs (abfd, stabsect_name, strsect_name) |
| 1932 | bfd *abfd; |
| 1933 | char *stabsect_name; |
| 1934 | char *strsect_name; |
| 1935 | { |
| 1936 | asection *s; |
| 1937 | |
| 1938 | /* Check for section names for which stabsect_name is a prefix, to |
| 1939 | handle .stab0, etc. */ |
| 1940 | for (s = abfd->sections; |
| 1941 | s != NULL; |
| 1942 | s = s->next) |
| 1943 | { |
| 1944 | int len; |
| 1945 | |
| 1946 | len = strlen (stabsect_name); |
| 1947 | |
| 1948 | /* If the prefix matches, and the files section name ends with a |
| 1949 | nul or a digit, then we match. I.e., we want either an exact |
| 1950 | match or a section followed by a number. */ |
| 1951 | if (strncmp (stabsect_name, s->name, len) == 0 |
| 1952 | && (s->name[len] == '\000' |
| 1953 | || isdigit ((unsigned char) s->name[len]))) |
| 1954 | { |
| 1955 | if (read_section_stabs (abfd, s->name, strsect_name)) |
| 1956 | { |
| 1957 | print_section_stabs (abfd, s->name, strsect_name); |
| 1958 | free (stabs); |
| 1959 | free (strtab); |
| 1960 | } |
| 1961 | } |
| 1962 | } |
| 1963 | } |
| 1964 | \f |
| 1965 | static void |
| 1966 | dump_bfd_header (abfd) |
| 1967 | bfd *abfd; |
| 1968 | { |
| 1969 | char *comma = ""; |
| 1970 | |
| 1971 | printf (_("architecture: %s, "), |
| 1972 | bfd_printable_arch_mach (bfd_get_arch (abfd), |
| 1973 | bfd_get_mach (abfd))); |
| 1974 | printf (_("flags 0x%08x:\n"), abfd->flags); |
| 1975 | |
| 1976 | #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";} |
| 1977 | PF (HAS_RELOC, "HAS_RELOC"); |
| 1978 | PF (EXEC_P, "EXEC_P"); |
| 1979 | PF (HAS_LINENO, "HAS_LINENO"); |
| 1980 | PF (HAS_DEBUG, "HAS_DEBUG"); |
| 1981 | PF (HAS_SYMS, "HAS_SYMS"); |
| 1982 | PF (HAS_LOCALS, "HAS_LOCALS"); |
| 1983 | PF (DYNAMIC, "DYNAMIC"); |
| 1984 | PF (WP_TEXT, "WP_TEXT"); |
| 1985 | PF (D_PAGED, "D_PAGED"); |
| 1986 | PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE"); |
| 1987 | printf (_("\nstart address 0x")); |
| 1988 | printf_vma (abfd->start_address); |
| 1989 | printf ("\n"); |
| 1990 | } |
| 1991 | \f |
| 1992 | static void |
| 1993 | dump_bfd_private_header (abfd) |
| 1994 | bfd *abfd; |
| 1995 | { |
| 1996 | bfd_print_private_bfd_data (abfd, stdout); |
| 1997 | } |
| 1998 | |
| 1999 | static void |
| 2000 | display_bfd (abfd) |
| 2001 | bfd *abfd; |
| 2002 | { |
| 2003 | char **matching; |
| 2004 | |
| 2005 | if (!bfd_check_format_matches (abfd, bfd_object, &matching)) |
| 2006 | { |
| 2007 | bfd_nonfatal (bfd_get_filename (abfd)); |
| 2008 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) |
| 2009 | { |
| 2010 | list_matching_formats (matching); |
| 2011 | free (matching); |
| 2012 | } |
| 2013 | return; |
| 2014 | } |
| 2015 | |
| 2016 | /* If we are adjusting section VMA's, change them all now. Changing |
| 2017 | the BFD information is a hack. However, we must do it, or |
| 2018 | bfd_find_nearest_line will not do the right thing. */ |
| 2019 | if (adjust_section_vma != 0) |
| 2020 | { |
| 2021 | asection *s; |
| 2022 | |
| 2023 | for (s = abfd->sections; s != NULL; s = s->next) |
| 2024 | { |
| 2025 | s->vma += adjust_section_vma; |
| 2026 | s->lma += adjust_section_vma; |
| 2027 | } |
| 2028 | } |
| 2029 | |
| 2030 | printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd), |
| 2031 | abfd->xvec->name); |
| 2032 | if (dump_ar_hdrs) |
| 2033 | print_arelt_descr (stdout, abfd, true); |
| 2034 | if (dump_file_header) |
| 2035 | dump_bfd_header (abfd); |
| 2036 | if (dump_private_headers) |
| 2037 | dump_bfd_private_header (abfd); |
| 2038 | putchar ('\n'); |
| 2039 | if (dump_section_headers) |
| 2040 | dump_headers (abfd); |
| 2041 | if (dump_symtab || dump_reloc_info || disassemble || dump_debugging) |
| 2042 | { |
| 2043 | syms = slurp_symtab (abfd); |
| 2044 | } |
| 2045 | if (dump_dynamic_symtab || dump_dynamic_reloc_info) |
| 2046 | { |
| 2047 | dynsyms = slurp_dynamic_symtab (abfd); |
| 2048 | } |
| 2049 | if (dump_symtab) |
| 2050 | dump_symbols (abfd, false); |
| 2051 | if (dump_dynamic_symtab) |
| 2052 | dump_symbols (abfd, true); |
| 2053 | if (dump_stab_section_info) |
| 2054 | dump_stabs (abfd); |
| 2055 | if (dump_reloc_info && ! disassemble) |
| 2056 | dump_relocs (abfd); |
| 2057 | if (dump_dynamic_reloc_info) |
| 2058 | dump_dynamic_relocs (abfd); |
| 2059 | if (dump_section_contents) |
| 2060 | dump_data (abfd); |
| 2061 | if (disassemble) |
| 2062 | disassemble_data (abfd); |
| 2063 | if (dump_debugging) |
| 2064 | { |
| 2065 | PTR dhandle; |
| 2066 | |
| 2067 | dhandle = read_debugging_info (abfd, syms, symcount); |
| 2068 | if (dhandle != NULL) |
| 2069 | { |
| 2070 | if (! print_debugging_info (stdout, dhandle)) |
| 2071 | fprintf (stderr, _("%s: printing debugging information failed\n"), |
| 2072 | bfd_get_filename (abfd)); |
| 2073 | } |
| 2074 | } |
| 2075 | if (syms) |
| 2076 | { |
| 2077 | free (syms); |
| 2078 | syms = NULL; |
| 2079 | } |
| 2080 | if (dynsyms) |
| 2081 | { |
| 2082 | free (dynsyms); |
| 2083 | dynsyms = NULL; |
| 2084 | } |
| 2085 | } |
| 2086 | |
| 2087 | static void |
| 2088 | display_file (filename, target) |
| 2089 | char *filename; |
| 2090 | char *target; |
| 2091 | { |
| 2092 | bfd *file, *arfile = (bfd *) NULL; |
| 2093 | |
| 2094 | file = bfd_openr (filename, target); |
| 2095 | if (file == NULL) |
| 2096 | { |
| 2097 | bfd_nonfatal (filename); |
| 2098 | return; |
| 2099 | } |
| 2100 | |
| 2101 | if (bfd_check_format (file, bfd_archive) == true) |
| 2102 | { |
| 2103 | bfd *last_arfile = NULL; |
| 2104 | |
| 2105 | printf (_("In archive %s:\n"), bfd_get_filename (file)); |
| 2106 | for (;;) |
| 2107 | { |
| 2108 | bfd_set_error (bfd_error_no_error); |
| 2109 | |
| 2110 | arfile = bfd_openr_next_archived_file (file, arfile); |
| 2111 | if (arfile == NULL) |
| 2112 | { |
| 2113 | if (bfd_get_error () != bfd_error_no_more_archived_files) |
| 2114 | { |
| 2115 | bfd_nonfatal (bfd_get_filename (file)); |
| 2116 | } |
| 2117 | break; |
| 2118 | } |
| 2119 | |
| 2120 | display_bfd (arfile); |
| 2121 | |
| 2122 | if (last_arfile != NULL) |
| 2123 | bfd_close (last_arfile); |
| 2124 | last_arfile = arfile; |
| 2125 | } |
| 2126 | |
| 2127 | if (last_arfile != NULL) |
| 2128 | bfd_close (last_arfile); |
| 2129 | } |
| 2130 | else |
| 2131 | display_bfd (file); |
| 2132 | |
| 2133 | bfd_close (file); |
| 2134 | } |
| 2135 | \f |
| 2136 | /* Actually display the various requested regions */ |
| 2137 | |
| 2138 | static void |
| 2139 | dump_data (abfd) |
| 2140 | bfd *abfd; |
| 2141 | { |
| 2142 | asection *section; |
| 2143 | bfd_byte *data = 0; |
| 2144 | bfd_size_type datasize = 0; |
| 2145 | bfd_size_type i; |
| 2146 | bfd_size_type start, stop; |
| 2147 | |
| 2148 | for (section = abfd->sections; section != NULL; section = |
| 2149 | section->next) |
| 2150 | { |
| 2151 | int onaline = 16; |
| 2152 | |
| 2153 | if (only == (char *) NULL || |
| 2154 | strcmp (only, section->name) == 0) |
| 2155 | { |
| 2156 | if (section->flags & SEC_HAS_CONTENTS) |
| 2157 | { |
| 2158 | printf (_("Contents of section %s:\n"), section->name); |
| 2159 | |
| 2160 | if (bfd_section_size (abfd, section) == 0) |
| 2161 | continue; |
| 2162 | data = (bfd_byte *) xmalloc ((size_t) bfd_section_size (abfd, section)); |
| 2163 | datasize = bfd_section_size (abfd, section); |
| 2164 | |
| 2165 | |
| 2166 | bfd_get_section_contents (abfd, section, (PTR) data, 0, bfd_section_size (abfd, section)); |
| 2167 | |
| 2168 | if (start_address == (bfd_vma) -1 |
| 2169 | || start_address < section->vma) |
| 2170 | start = 0; |
| 2171 | else |
| 2172 | start = start_address - section->vma; |
| 2173 | if (stop_address == (bfd_vma) -1) |
| 2174 | stop = bfd_section_size (abfd, section); |
| 2175 | else |
| 2176 | { |
| 2177 | if (stop_address < section->vma) |
| 2178 | stop = 0; |
| 2179 | else |
| 2180 | stop = stop_address - section->vma; |
| 2181 | if (stop > bfd_section_size (abfd, section)) |
| 2182 | stop = bfd_section_size (abfd, section); |
| 2183 | } |
| 2184 | for (i = start; i < stop; i += onaline) |
| 2185 | { |
| 2186 | bfd_size_type j; |
| 2187 | |
| 2188 | printf (" %04lx ", (unsigned long int) (i + section->vma)); |
| 2189 | for (j = i; j < i + onaline; j++) |
| 2190 | { |
| 2191 | if (j < stop) |
| 2192 | printf ("%02x", (unsigned) (data[j])); |
| 2193 | else |
| 2194 | printf (" "); |
| 2195 | if ((j & 3) == 3) |
| 2196 | printf (" "); |
| 2197 | } |
| 2198 | |
| 2199 | printf (" "); |
| 2200 | for (j = i; j < i + onaline; j++) |
| 2201 | { |
| 2202 | if (j >= stop) |
| 2203 | printf (" "); |
| 2204 | else |
| 2205 | printf ("%c", isprint (data[j]) ? data[j] : '.'); |
| 2206 | } |
| 2207 | putchar ('\n'); |
| 2208 | } |
| 2209 | free (data); |
| 2210 | } |
| 2211 | } |
| 2212 | } |
| 2213 | } |
| 2214 | |
| 2215 | /* Should perhaps share code and display with nm? */ |
| 2216 | static void |
| 2217 | dump_symbols (abfd, dynamic) |
| 2218 | bfd *abfd; |
| 2219 | boolean dynamic; |
| 2220 | { |
| 2221 | asymbol **current; |
| 2222 | long max; |
| 2223 | long count; |
| 2224 | |
| 2225 | if (dynamic) |
| 2226 | { |
| 2227 | current = dynsyms; |
| 2228 | max = dynsymcount; |
| 2229 | if (max == 0) |
| 2230 | return; |
| 2231 | printf ("DYNAMIC SYMBOL TABLE:\n"); |
| 2232 | } |
| 2233 | else |
| 2234 | { |
| 2235 | current = syms; |
| 2236 | max = symcount; |
| 2237 | if (max == 0) |
| 2238 | return; |
| 2239 | printf ("SYMBOL TABLE:\n"); |
| 2240 | } |
| 2241 | |
| 2242 | for (count = 0; count < max; count++) |
| 2243 | { |
| 2244 | if (*current) |
| 2245 | { |
| 2246 | bfd *cur_bfd = bfd_asymbol_bfd (*current); |
| 2247 | |
| 2248 | if (cur_bfd != NULL) |
| 2249 | { |
| 2250 | const char *name; |
| 2251 | char *alloc; |
| 2252 | |
| 2253 | name = bfd_asymbol_name (*current); |
| 2254 | alloc = NULL; |
| 2255 | if (do_demangle && name != NULL && *name != '\0') |
| 2256 | { |
| 2257 | const char *n; |
| 2258 | |
| 2259 | /* If we want to demangle the name, we demangle it |
| 2260 | here, and temporarily clobber it while calling |
| 2261 | bfd_print_symbol. FIXME: This is a gross hack. */ |
| 2262 | |
| 2263 | n = name; |
| 2264 | if (bfd_get_symbol_leading_char (cur_bfd) == *n) |
| 2265 | ++n; |
| 2266 | alloc = cplus_demangle (n, DMGL_ANSI | DMGL_PARAMS); |
| 2267 | if (alloc != NULL) |
| 2268 | (*current)->name = alloc; |
| 2269 | else |
| 2270 | (*current)->name = n; |
| 2271 | } |
| 2272 | |
| 2273 | bfd_print_symbol (cur_bfd, stdout, *current, |
| 2274 | bfd_print_symbol_all); |
| 2275 | |
| 2276 | (*current)->name = name; |
| 2277 | if (alloc != NULL) |
| 2278 | free (alloc); |
| 2279 | |
| 2280 | printf ("\n"); |
| 2281 | } |
| 2282 | } |
| 2283 | current++; |
| 2284 | } |
| 2285 | printf ("\n"); |
| 2286 | printf ("\n"); |
| 2287 | } |
| 2288 | |
| 2289 | static void |
| 2290 | dump_relocs (abfd) |
| 2291 | bfd *abfd; |
| 2292 | { |
| 2293 | arelent **relpp; |
| 2294 | long relcount; |
| 2295 | asection *a; |
| 2296 | |
| 2297 | for (a = abfd->sections; a != (asection *) NULL; a = a->next) |
| 2298 | { |
| 2299 | long relsize; |
| 2300 | |
| 2301 | if (bfd_is_abs_section (a)) |
| 2302 | continue; |
| 2303 | if (bfd_is_und_section (a)) |
| 2304 | continue; |
| 2305 | if (bfd_is_com_section (a)) |
| 2306 | continue; |
| 2307 | |
| 2308 | if (only) |
| 2309 | { |
| 2310 | if (strcmp (only, a->name)) |
| 2311 | continue; |
| 2312 | } |
| 2313 | else if ((a->flags & SEC_RELOC) == 0) |
| 2314 | continue; |
| 2315 | |
| 2316 | relsize = bfd_get_reloc_upper_bound (abfd, a); |
| 2317 | if (relsize < 0) |
| 2318 | bfd_fatal (bfd_get_filename (abfd)); |
| 2319 | |
| 2320 | printf ("RELOCATION RECORDS FOR [%s]:", a->name); |
| 2321 | |
| 2322 | if (relsize == 0) |
| 2323 | { |
| 2324 | printf (" (none)\n\n"); |
| 2325 | } |
| 2326 | else |
| 2327 | { |
| 2328 | relpp = (arelent **) xmalloc (relsize); |
| 2329 | relcount = bfd_canonicalize_reloc (abfd, a, relpp, syms); |
| 2330 | if (relcount < 0) |
| 2331 | bfd_fatal (bfd_get_filename (abfd)); |
| 2332 | else if (relcount == 0) |
| 2333 | { |
| 2334 | printf (" (none)\n\n"); |
| 2335 | } |
| 2336 | else |
| 2337 | { |
| 2338 | printf ("\n"); |
| 2339 | dump_reloc_set (abfd, a, relpp, relcount); |
| 2340 | printf ("\n\n"); |
| 2341 | } |
| 2342 | free (relpp); |
| 2343 | } |
| 2344 | } |
| 2345 | } |
| 2346 | |
| 2347 | static void |
| 2348 | dump_dynamic_relocs (abfd) |
| 2349 | bfd *abfd; |
| 2350 | { |
| 2351 | long relsize; |
| 2352 | arelent **relpp; |
| 2353 | long relcount; |
| 2354 | |
| 2355 | relsize = bfd_get_dynamic_reloc_upper_bound (abfd); |
| 2356 | if (relsize < 0) |
| 2357 | bfd_fatal (bfd_get_filename (abfd)); |
| 2358 | |
| 2359 | printf ("DYNAMIC RELOCATION RECORDS"); |
| 2360 | |
| 2361 | if (relsize == 0) |
| 2362 | { |
| 2363 | printf (" (none)\n\n"); |
| 2364 | } |
| 2365 | else |
| 2366 | { |
| 2367 | relpp = (arelent **) xmalloc (relsize); |
| 2368 | relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms); |
| 2369 | if (relcount < 0) |
| 2370 | bfd_fatal (bfd_get_filename (abfd)); |
| 2371 | else if (relcount == 0) |
| 2372 | { |
| 2373 | printf (" (none)\n\n"); |
| 2374 | } |
| 2375 | else |
| 2376 | { |
| 2377 | printf ("\n"); |
| 2378 | dump_reloc_set (abfd, (asection *) NULL, relpp, relcount); |
| 2379 | printf ("\n\n"); |
| 2380 | } |
| 2381 | free (relpp); |
| 2382 | } |
| 2383 | } |
| 2384 | |
| 2385 | static void |
| 2386 | dump_reloc_set (abfd, sec, relpp, relcount) |
| 2387 | bfd *abfd; |
| 2388 | asection *sec; |
| 2389 | arelent **relpp; |
| 2390 | long relcount; |
| 2391 | { |
| 2392 | arelent **p; |
| 2393 | char *last_filename, *last_functionname; |
| 2394 | unsigned int last_line; |
| 2395 | |
| 2396 | /* Get column headers lined up reasonably. */ |
| 2397 | { |
| 2398 | static int width; |
| 2399 | if (width == 0) |
| 2400 | { |
| 2401 | char buf[30]; |
| 2402 | sprintf_vma (buf, (bfd_vma) -1); |
| 2403 | width = strlen (buf) - 7; |
| 2404 | } |
| 2405 | printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, ""); |
| 2406 | } |
| 2407 | |
| 2408 | last_filename = NULL; |
| 2409 | last_functionname = NULL; |
| 2410 | last_line = 0; |
| 2411 | |
| 2412 | for (p = relpp; relcount && *p != (arelent *) NULL; p++, relcount--) |
| 2413 | { |
| 2414 | arelent *q = *p; |
| 2415 | const char *filename, *functionname; |
| 2416 | unsigned int line; |
| 2417 | const char *sym_name; |
| 2418 | const char *section_name; |
| 2419 | |
| 2420 | if (start_address != (bfd_vma) -1 |
| 2421 | && q->address < start_address) |
| 2422 | continue; |
| 2423 | if (stop_address != (bfd_vma) -1 |
| 2424 | && q->address > stop_address) |
| 2425 | continue; |
| 2426 | |
| 2427 | if (with_line_numbers |
| 2428 | && sec != NULL |
| 2429 | && bfd_find_nearest_line (abfd, sec, syms, q->address, |
| 2430 | &filename, &functionname, &line)) |
| 2431 | { |
| 2432 | if (functionname != NULL |
| 2433 | && (last_functionname == NULL |
| 2434 | || strcmp (functionname, last_functionname) != 0)) |
| 2435 | { |
| 2436 | printf ("%s():\n", functionname); |
| 2437 | if (last_functionname != NULL) |
| 2438 | free (last_functionname); |
| 2439 | last_functionname = xstrdup (functionname); |
| 2440 | } |
| 2441 | if (line > 0 |
| 2442 | && (line != last_line |
| 2443 | || (filename != NULL |
| 2444 | && last_filename != NULL |
| 2445 | && strcmp (filename, last_filename) != 0))) |
| 2446 | { |
| 2447 | printf ("%s:%u\n", filename == NULL ? "???" : filename, line); |
| 2448 | last_line = line; |
| 2449 | if (last_filename != NULL) |
| 2450 | free (last_filename); |
| 2451 | if (filename == NULL) |
| 2452 | last_filename = NULL; |
| 2453 | else |
| 2454 | last_filename = xstrdup (filename); |
| 2455 | } |
| 2456 | } |
| 2457 | |
| 2458 | if (q->sym_ptr_ptr && *q->sym_ptr_ptr) |
| 2459 | { |
| 2460 | sym_name = (*(q->sym_ptr_ptr))->name; |
| 2461 | section_name = (*(q->sym_ptr_ptr))->section->name; |
| 2462 | } |
| 2463 | else |
| 2464 | { |
| 2465 | sym_name = NULL; |
| 2466 | section_name = NULL; |
| 2467 | } |
| 2468 | if (sym_name) |
| 2469 | { |
| 2470 | printf_vma (q->address); |
| 2471 | if (q->howto->name) |
| 2472 | printf (" %-16s ", q->howto->name); |
| 2473 | else |
| 2474 | printf (" %-16d ", q->howto->type); |
| 2475 | objdump_print_symname (abfd, (struct disassemble_info *) NULL, |
| 2476 | *q->sym_ptr_ptr); |
| 2477 | } |
| 2478 | else |
| 2479 | { |
| 2480 | if (section_name == (CONST char *) NULL) |
| 2481 | section_name = "*unknown*"; |
| 2482 | printf_vma (q->address); |
| 2483 | printf (" %-16s [%s]", |
| 2484 | q->howto->name, |
| 2485 | section_name); |
| 2486 | } |
| 2487 | if (q->addend) |
| 2488 | { |
| 2489 | printf ("+0x"); |
| 2490 | printf_vma (q->addend); |
| 2491 | } |
| 2492 | printf ("\n"); |
| 2493 | } |
| 2494 | } |
| 2495 | \f |
| 2496 | /* The length of the longest architecture name + 1. */ |
| 2497 | #define LONGEST_ARCH sizeof("rs6000:6000") |
| 2498 | |
| 2499 | static const char * |
| 2500 | endian_string (endian) |
| 2501 | enum bfd_endian endian; |
| 2502 | { |
| 2503 | if (endian == BFD_ENDIAN_BIG) |
| 2504 | return "big endian"; |
| 2505 | else if (endian == BFD_ENDIAN_LITTLE) |
| 2506 | return "little endian"; |
| 2507 | else |
| 2508 | return "endianness unknown"; |
| 2509 | } |
| 2510 | |
| 2511 | /* List the targets that BFD is configured to support, each followed |
| 2512 | by its endianness and the architectures it supports. */ |
| 2513 | |
| 2514 | static void |
| 2515 | display_target_list () |
| 2516 | { |
| 2517 | extern bfd_target *bfd_target_vector[]; |
| 2518 | char *dummy_name; |
| 2519 | int t; |
| 2520 | |
| 2521 | dummy_name = choose_temp_base (); |
| 2522 | for (t = 0; bfd_target_vector[t]; t++) |
| 2523 | { |
| 2524 | bfd_target *p = bfd_target_vector[t]; |
| 2525 | bfd *abfd = bfd_openw (dummy_name, p->name); |
| 2526 | int a; |
| 2527 | |
| 2528 | printf ("%s\n (header %s, data %s)\n", p->name, |
| 2529 | endian_string (p->header_byteorder), |
| 2530 | endian_string (p->byteorder)); |
| 2531 | |
| 2532 | if (abfd == NULL) |
| 2533 | { |
| 2534 | bfd_nonfatal (dummy_name); |
| 2535 | continue; |
| 2536 | } |
| 2537 | |
| 2538 | if (! bfd_set_format (abfd, bfd_object)) |
| 2539 | { |
| 2540 | if (bfd_get_error () != bfd_error_invalid_operation) |
| 2541 | bfd_nonfatal (p->name); |
| 2542 | continue; |
| 2543 | } |
| 2544 | |
| 2545 | for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++) |
| 2546 | if (bfd_set_arch_mach (abfd, (enum bfd_architecture) a, 0)) |
| 2547 | printf (" %s\n", |
| 2548 | bfd_printable_arch_mach ((enum bfd_architecture) a, 0)); |
| 2549 | } |
| 2550 | unlink (dummy_name); |
| 2551 | free (dummy_name); |
| 2552 | } |
| 2553 | |
| 2554 | /* Print a table showing which architectures are supported for entries |
| 2555 | FIRST through LAST-1 of bfd_target_vector (targets across, |
| 2556 | architectures down). */ |
| 2557 | |
| 2558 | static void |
| 2559 | display_info_table (first, last) |
| 2560 | int first; |
| 2561 | int last; |
| 2562 | { |
| 2563 | extern bfd_target *bfd_target_vector[]; |
| 2564 | int t, a; |
| 2565 | char *dummy_name; |
| 2566 | |
| 2567 | /* Print heading of target names. */ |
| 2568 | printf ("\n%*s", (int) LONGEST_ARCH, " "); |
| 2569 | for (t = first; t < last && bfd_target_vector[t]; t++) |
| 2570 | printf ("%s ", bfd_target_vector[t]->name); |
| 2571 | putchar ('\n'); |
| 2572 | |
| 2573 | dummy_name = choose_temp_base (); |
| 2574 | for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++) |
| 2575 | if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0) |
| 2576 | { |
| 2577 | printf ("%*s ", (int) LONGEST_ARCH - 1, |
| 2578 | bfd_printable_arch_mach (a, 0)); |
| 2579 | for (t = first; t < last && bfd_target_vector[t]; t++) |
| 2580 | { |
| 2581 | bfd_target *p = bfd_target_vector[t]; |
| 2582 | boolean ok = true; |
| 2583 | bfd *abfd = bfd_openw (dummy_name, p->name); |
| 2584 | |
| 2585 | if (abfd == NULL) |
| 2586 | { |
| 2587 | bfd_nonfatal (p->name); |
| 2588 | ok = false; |
| 2589 | } |
| 2590 | |
| 2591 | if (ok) |
| 2592 | { |
| 2593 | if (! bfd_set_format (abfd, bfd_object)) |
| 2594 | { |
| 2595 | if (bfd_get_error () != bfd_error_invalid_operation) |
| 2596 | bfd_nonfatal (p->name); |
| 2597 | ok = false; |
| 2598 | } |
| 2599 | } |
| 2600 | |
| 2601 | if (ok) |
| 2602 | { |
| 2603 | if (! bfd_set_arch_mach (abfd, a, 0)) |
| 2604 | ok = false; |
| 2605 | } |
| 2606 | |
| 2607 | if (ok) |
| 2608 | printf ("%s ", p->name); |
| 2609 | else |
| 2610 | { |
| 2611 | int l = strlen (p->name); |
| 2612 | while (l--) |
| 2613 | putchar ('-'); |
| 2614 | putchar (' '); |
| 2615 | } |
| 2616 | } |
| 2617 | putchar ('\n'); |
| 2618 | } |
| 2619 | unlink (dummy_name); |
| 2620 | free (dummy_name); |
| 2621 | } |
| 2622 | |
| 2623 | /* Print tables of all the target-architecture combinations that |
| 2624 | BFD has been configured to support. */ |
| 2625 | |
| 2626 | static void |
| 2627 | display_target_tables () |
| 2628 | { |
| 2629 | int t, columns; |
| 2630 | extern bfd_target *bfd_target_vector[]; |
| 2631 | char *colum; |
| 2632 | |
| 2633 | columns = 0; |
| 2634 | colum = getenv ("COLUMNS"); |
| 2635 | if (colum != NULL) |
| 2636 | columns = atoi (colum); |
| 2637 | if (columns == 0) |
| 2638 | columns = 80; |
| 2639 | |
| 2640 | t = 0; |
| 2641 | while (bfd_target_vector[t] != NULL) |
| 2642 | { |
| 2643 | int oldt = t, wid; |
| 2644 | |
| 2645 | wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1; |
| 2646 | ++t; |
| 2647 | while (wid < columns && bfd_target_vector[t] != NULL) |
| 2648 | { |
| 2649 | int newwid; |
| 2650 | |
| 2651 | newwid = wid + strlen (bfd_target_vector[t]->name) + 1; |
| 2652 | if (newwid >= columns) |
| 2653 | break; |
| 2654 | wid = newwid; |
| 2655 | ++t; |
| 2656 | } |
| 2657 | display_info_table (oldt, t); |
| 2658 | } |
| 2659 | } |
| 2660 | |
| 2661 | static void |
| 2662 | display_info () |
| 2663 | { |
| 2664 | printf (_("BFD header file version %s\n"), BFD_VERSION); |
| 2665 | display_target_list (); |
| 2666 | display_target_tables (); |
| 2667 | } |
| 2668 | |
| 2669 | int |
| 2670 | main (argc, argv) |
| 2671 | int argc; |
| 2672 | char **argv; |
| 2673 | { |
| 2674 | int c; |
| 2675 | char *target = default_target; |
| 2676 | boolean seenflag = false; |
| 2677 | |
| 2678 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
| 2679 | setlocale (LC_MESSAGES, ""); |
| 2680 | #endif |
| 2681 | bindtextdomain (PACKAGE, LOCALEDIR); |
| 2682 | textdomain (PACKAGE); |
| 2683 | |
| 2684 | program_name = *argv; |
| 2685 | xmalloc_set_program_name (program_name); |
| 2686 | |
| 2687 | START_PROGRESS (program_name, 0); |
| 2688 | |
| 2689 | bfd_init (); |
| 2690 | set_default_bfd_target (); |
| 2691 | |
| 2692 | while ((c = getopt_long (argc, argv, "pib:m:VCdDlfahrRtTxsSj:wE:", |
| 2693 | long_options, (int *) 0)) |
| 2694 | != EOF) |
| 2695 | { |
| 2696 | if (c != 'l' && c != OPTION_START_ADDRESS && c != OPTION_STOP_ADDRESS) |
| 2697 | seenflag = true; |
| 2698 | switch (c) |
| 2699 | { |
| 2700 | case 0: |
| 2701 | break; /* we've been given a long option */ |
| 2702 | case 'm': |
| 2703 | machine = optarg; |
| 2704 | break; |
| 2705 | case 'j': |
| 2706 | only = optarg; |
| 2707 | break; |
| 2708 | case 'l': |
| 2709 | with_line_numbers = 1; |
| 2710 | break; |
| 2711 | case 'b': |
| 2712 | target = optarg; |
| 2713 | break; |
| 2714 | case 'f': |
| 2715 | dump_file_header = true; |
| 2716 | break; |
| 2717 | case 'i': |
| 2718 | formats_info = true; |
| 2719 | break; |
| 2720 | case 'p': |
| 2721 | dump_private_headers = 1; |
| 2722 | break; |
| 2723 | case 'x': |
| 2724 | dump_private_headers = 1; |
| 2725 | dump_symtab = 1; |
| 2726 | dump_reloc_info = 1; |
| 2727 | dump_file_header = true; |
| 2728 | dump_ar_hdrs = 1; |
| 2729 | dump_section_headers = 1; |
| 2730 | break; |
| 2731 | case 't': |
| 2732 | dump_symtab = 1; |
| 2733 | break; |
| 2734 | case 'T': |
| 2735 | dump_dynamic_symtab = 1; |
| 2736 | break; |
| 2737 | case 'C': |
| 2738 | do_demangle = 1; |
| 2739 | break; |
| 2740 | case 'd': |
| 2741 | disassemble = true; |
| 2742 | break; |
| 2743 | case 'D': |
| 2744 | disassemble = disassemble_all = true; |
| 2745 | break; |
| 2746 | case 'S': |
| 2747 | disassemble = true; |
| 2748 | with_source_code = true; |
| 2749 | break; |
| 2750 | case 's': |
| 2751 | dump_section_contents = 1; |
| 2752 | break; |
| 2753 | case 'r': |
| 2754 | dump_reloc_info = 1; |
| 2755 | break; |
| 2756 | case 'R': |
| 2757 | dump_dynamic_reloc_info = 1; |
| 2758 | break; |
| 2759 | case 'a': |
| 2760 | dump_ar_hdrs = 1; |
| 2761 | break; |
| 2762 | case 'h': |
| 2763 | dump_section_headers = 1; |
| 2764 | break; |
| 2765 | case 'H': |
| 2766 | usage (stdout, 0); |
| 2767 | case 'V': |
| 2768 | show_version = 1; |
| 2769 | break; |
| 2770 | case 'w': |
| 2771 | wide_output = 1; |
| 2772 | break; |
| 2773 | case OPTION_ADJUST_VMA: |
| 2774 | adjust_section_vma = parse_vma (optarg, "--adjust-vma"); |
| 2775 | break; |
| 2776 | case OPTION_START_ADDRESS: |
| 2777 | start_address = parse_vma (optarg, "--start-address"); |
| 2778 | break; |
| 2779 | case OPTION_STOP_ADDRESS: |
| 2780 | stop_address = parse_vma (optarg, "--stop-address"); |
| 2781 | break; |
| 2782 | case 'E': |
| 2783 | if (strcmp (optarg, "B") == 0) |
| 2784 | endian = BFD_ENDIAN_BIG; |
| 2785 | else if (strcmp (optarg, "L") == 0) |
| 2786 | endian = BFD_ENDIAN_LITTLE; |
| 2787 | else |
| 2788 | { |
| 2789 | fprintf (stderr, _("%s: unrecognized -E option\n"), program_name); |
| 2790 | usage (stderr, 1); |
| 2791 | } |
| 2792 | break; |
| 2793 | case OPTION_ENDIAN: |
| 2794 | if (strncmp (optarg, "big", strlen (optarg)) == 0) |
| 2795 | endian = BFD_ENDIAN_BIG; |
| 2796 | else if (strncmp (optarg, "little", strlen (optarg)) == 0) |
| 2797 | endian = BFD_ENDIAN_LITTLE; |
| 2798 | else |
| 2799 | { |
| 2800 | fprintf (stderr, _("%s: unrecognized --endian type `%s'\n"), |
| 2801 | program_name, optarg); |
| 2802 | usage (stderr, 1); |
| 2803 | } |
| 2804 | break; |
| 2805 | default: |
| 2806 | usage (stderr, 1); |
| 2807 | } |
| 2808 | } |
| 2809 | |
| 2810 | if (show_version) |
| 2811 | print_version ("objdump"); |
| 2812 | |
| 2813 | if (seenflag == false) |
| 2814 | usage (stderr, 1); |
| 2815 | |
| 2816 | if (formats_info) |
| 2817 | { |
| 2818 | display_info (); |
| 2819 | } |
| 2820 | else |
| 2821 | { |
| 2822 | if (optind == argc) |
| 2823 | display_file ("a.out", target); |
| 2824 | else |
| 2825 | for (; optind < argc;) |
| 2826 | display_file (argv[optind++], target); |
| 2827 | } |
| 2828 | |
| 2829 | END_PROGRESS (program_name); |
| 2830 | |
| 2831 | return 0; |
| 2832 | } |