| 1 | /* objdump.c -- dump information about an object file. |
| 2 | Copyright (C) 1990-2016 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Binutils. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, 51 Franklin Street - Fifth Floor, Boston, |
| 19 | MA 02110-1301, USA. */ |
| 20 | |
| 21 | |
| 22 | /* Objdump overview. |
| 23 | |
| 24 | Objdump displays information about one or more object files, either on |
| 25 | their own, or inside libraries. It is commonly used as a disassembler, |
| 26 | but it can also display information about file headers, symbol tables, |
| 27 | relocations, debugging directives and more. |
| 28 | |
| 29 | The flow of execution is as follows: |
| 30 | |
| 31 | 1. Command line arguments are checked for control switches and the |
| 32 | information to be displayed is selected. |
| 33 | |
| 34 | 2. Any remaining arguments are assumed to be object files, and they are |
| 35 | processed in order by display_bfd(). If the file is an archive each |
| 36 | of its elements is processed in turn. |
| 37 | |
| 38 | 3. The file's target architecture and binary file format are determined |
| 39 | by bfd_check_format(). If they are recognised, then dump_bfd() is |
| 40 | called. |
| 41 | |
| 42 | 4. dump_bfd() in turn calls separate functions to display the requested |
| 43 | item(s) of information(s). For example disassemble_data() is called if |
| 44 | a disassembly has been requested. |
| 45 | |
| 46 | When disassembling the code loops through blocks of instructions bounded |
| 47 | by symbols, calling disassemble_bytes() on each block. The actual |
| 48 | disassembling is done by the libopcodes library, via a function pointer |
| 49 | supplied by the disassembler() function. */ |
| 50 | |
| 51 | #include "sysdep.h" |
| 52 | #include "bfd.h" |
| 53 | #include "elf-bfd.h" |
| 54 | #include "coff-bfd.h" |
| 55 | #include "progress.h" |
| 56 | #include "bucomm.h" |
| 57 | #include "elfcomm.h" |
| 58 | #include "dwarf.h" |
| 59 | #include "getopt.h" |
| 60 | #include "safe-ctype.h" |
| 61 | #include "dis-asm.h" |
| 62 | #include "libiberty.h" |
| 63 | #include "demangle.h" |
| 64 | #include "filenames.h" |
| 65 | #include "debug.h" |
| 66 | #include "budbg.h" |
| 67 | #include "objdump.h" |
| 68 | |
| 69 | #ifdef HAVE_MMAP |
| 70 | #include <sys/mman.h> |
| 71 | #endif |
| 72 | |
| 73 | /* Internal headers for the ELF .stab-dump code - sorry. */ |
| 74 | #define BYTES_IN_WORD 32 |
| 75 | #include "aout/aout64.h" |
| 76 | |
| 77 | /* Exit status. */ |
| 78 | static int exit_status = 0; |
| 79 | |
| 80 | static char *default_target = NULL; /* Default at runtime. */ |
| 81 | |
| 82 | /* The following variables are set based on arguments passed on the |
| 83 | command line. */ |
| 84 | static int show_version = 0; /* Show the version number. */ |
| 85 | static int dump_section_contents; /* -s */ |
| 86 | static int dump_section_headers; /* -h */ |
| 87 | static bfd_boolean dump_file_header; /* -f */ |
| 88 | static int dump_symtab; /* -t */ |
| 89 | static int dump_dynamic_symtab; /* -T */ |
| 90 | static int dump_reloc_info; /* -r */ |
| 91 | static int dump_dynamic_reloc_info; /* -R */ |
| 92 | static int dump_ar_hdrs; /* -a */ |
| 93 | static int dump_private_headers; /* -p */ |
| 94 | static char *dump_private_options; /* -P */ |
| 95 | static int prefix_addresses; /* --prefix-addresses */ |
| 96 | static int with_line_numbers; /* -l */ |
| 97 | static bfd_boolean with_source_code; /* -S */ |
| 98 | static int show_raw_insn; /* --show-raw-insn */ |
| 99 | static int dump_dwarf_section_info; /* --dwarf */ |
| 100 | static int dump_stab_section_info; /* --stabs */ |
| 101 | static int do_demangle; /* -C, --demangle */ |
| 102 | static bfd_boolean disassemble; /* -d */ |
| 103 | static bfd_boolean disassemble_all; /* -D */ |
| 104 | static int disassemble_zeroes; /* --disassemble-zeroes */ |
| 105 | static bfd_boolean formats_info; /* -i */ |
| 106 | static int wide_output; /* -w */ |
| 107 | static int insn_width; /* --insn-width */ |
| 108 | static bfd_vma start_address = (bfd_vma) -1; /* --start-address */ |
| 109 | static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */ |
| 110 | static int dump_debugging; /* --debugging */ |
| 111 | static int dump_debugging_tags; /* --debugging-tags */ |
| 112 | static int suppress_bfd_header; |
| 113 | static int dump_special_syms = 0; /* --special-syms */ |
| 114 | static bfd_vma adjust_section_vma = 0; /* --adjust-vma */ |
| 115 | static int file_start_context = 0; /* --file-start-context */ |
| 116 | static bfd_boolean display_file_offsets;/* -F */ |
| 117 | static const char *prefix; /* --prefix */ |
| 118 | static int prefix_strip; /* --prefix-strip */ |
| 119 | static size_t prefix_length; |
| 120 | |
| 121 | /* A structure to record the sections mentioned in -j switches. */ |
| 122 | struct only |
| 123 | { |
| 124 | const char * name; /* The name of the section. */ |
| 125 | bfd_boolean seen; /* A flag to indicate that the section has been found in one or more input files. */ |
| 126 | struct only * next; /* Pointer to the next structure in the list. */ |
| 127 | }; |
| 128 | /* Pointer to an array of 'only' structures. |
| 129 | This pointer is NULL if the -j switch has not been used. */ |
| 130 | static struct only * only_list = NULL; |
| 131 | |
| 132 | /* Variables for handling include file path table. */ |
| 133 | static const char **include_paths; |
| 134 | static int include_path_count; |
| 135 | |
| 136 | /* Extra info to pass to the section disassembler and address printing |
| 137 | function. */ |
| 138 | struct objdump_disasm_info |
| 139 | { |
| 140 | bfd * abfd; |
| 141 | asection * sec; |
| 142 | bfd_boolean require_sec; |
| 143 | arelent ** dynrelbuf; |
| 144 | long dynrelcount; |
| 145 | disassembler_ftype disassemble_fn; |
| 146 | arelent * reloc; |
| 147 | }; |
| 148 | |
| 149 | /* Architecture to disassemble for, or default if NULL. */ |
| 150 | static char *machine = NULL; |
| 151 | |
| 152 | /* Target specific options to the disassembler. */ |
| 153 | static char *disassembler_options = NULL; |
| 154 | |
| 155 | /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */ |
| 156 | static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN; |
| 157 | |
| 158 | /* The symbol table. */ |
| 159 | static asymbol **syms; |
| 160 | |
| 161 | /* Number of symbols in `syms'. */ |
| 162 | static long symcount = 0; |
| 163 | |
| 164 | /* The sorted symbol table. */ |
| 165 | static asymbol **sorted_syms; |
| 166 | |
| 167 | /* Number of symbols in `sorted_syms'. */ |
| 168 | static long sorted_symcount = 0; |
| 169 | |
| 170 | /* The dynamic symbol table. */ |
| 171 | static asymbol **dynsyms; |
| 172 | |
| 173 | /* The synthetic symbol table. */ |
| 174 | static asymbol *synthsyms; |
| 175 | static long synthcount = 0; |
| 176 | |
| 177 | /* Number of symbols in `dynsyms'. */ |
| 178 | static long dynsymcount = 0; |
| 179 | |
| 180 | static bfd_byte *stabs; |
| 181 | static bfd_size_type stab_size; |
| 182 | |
| 183 | static char *strtab; |
| 184 | static bfd_size_type stabstr_size; |
| 185 | |
| 186 | static bfd_boolean is_relocatable = FALSE; |
| 187 | |
| 188 | /* Handlers for -P/--private. */ |
| 189 | static const struct objdump_private_desc * const objdump_private_vectors[] = |
| 190 | { |
| 191 | OBJDUMP_PRIVATE_VECTORS |
| 192 | NULL |
| 193 | }; |
| 194 | \f |
| 195 | static void usage (FILE *, int) ATTRIBUTE_NORETURN; |
| 196 | static void |
| 197 | usage (FILE *stream, int status) |
| 198 | { |
| 199 | fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name); |
| 200 | fprintf (stream, _(" Display information from object <file(s)>.\n")); |
| 201 | fprintf (stream, _(" At least one of the following switches must be given:\n")); |
| 202 | fprintf (stream, _("\ |
| 203 | -a, --archive-headers Display archive header information\n\ |
| 204 | -f, --file-headers Display the contents of the overall file header\n\ |
| 205 | -p, --private-headers Display object format specific file header contents\n\ |
| 206 | -P, --private=OPT,OPT... Display object format specific contents\n\ |
| 207 | -h, --[section-]headers Display the contents of the section headers\n\ |
| 208 | -x, --all-headers Display the contents of all headers\n\ |
| 209 | -d, --disassemble Display assembler contents of executable sections\n\ |
| 210 | -D, --disassemble-all Display assembler contents of all sections\n\ |
| 211 | -S, --source Intermix source code with disassembly\n\ |
| 212 | -s, --full-contents Display the full contents of all sections requested\n\ |
| 213 | -g, --debugging Display debug information in object file\n\ |
| 214 | -e, --debugging-tags Display debug information using ctags style\n\ |
| 215 | -G, --stabs Display (in raw form) any STABS info in the file\n\ |
| 216 | -W[lLiaprmfFsoRt] or\n\ |
| 217 | --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,\n\ |
| 218 | =frames-interp,=str,=loc,=Ranges,=pubtypes,\n\ |
| 219 | =gdb_index,=trace_info,=trace_abbrev,=trace_aranges,\n\ |
| 220 | =addr,=cu_index]\n\ |
| 221 | Display DWARF info in the file\n\ |
| 222 | -t, --syms Display the contents of the symbol table(s)\n\ |
| 223 | -T, --dynamic-syms Display the contents of the dynamic symbol table\n\ |
| 224 | -r, --reloc Display the relocation entries in the file\n\ |
| 225 | -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\ |
| 226 | @<file> Read options from <file>\n\ |
| 227 | -v, --version Display this program's version number\n\ |
| 228 | -i, --info List object formats and architectures supported\n\ |
| 229 | -H, --help Display this information\n\ |
| 230 | ")); |
| 231 | if (status != 2) |
| 232 | { |
| 233 | const struct objdump_private_desc * const *desc; |
| 234 | |
| 235 | fprintf (stream, _("\n The following switches are optional:\n")); |
| 236 | fprintf (stream, _("\ |
| 237 | -b, --target=BFDNAME Specify the target object format as BFDNAME\n\ |
| 238 | -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\ |
| 239 | -j, --section=NAME Only display information for section NAME\n\ |
| 240 | -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\ |
| 241 | -EB --endian=big Assume big endian format when disassembling\n\ |
| 242 | -EL --endian=little Assume little endian format when disassembling\n\ |
| 243 | --file-start-context Include context from start of file (with -S)\n\ |
| 244 | -I, --include=DIR Add DIR to search list for source files\n\ |
| 245 | -l, --line-numbers Include line numbers and filenames in output\n\ |
| 246 | -F, --file-offsets Include file offsets when displaying information\n\ |
| 247 | -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\ |
| 248 | The STYLE, if specified, can be `auto', `gnu',\n\ |
| 249 | `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\ |
| 250 | or `gnat'\n\ |
| 251 | -w, --wide Format output for more than 80 columns\n\ |
| 252 | -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\ |
| 253 | --start-address=ADDR Only process data whose address is >= ADDR\n\ |
| 254 | --stop-address=ADDR Only process data whose address is <= ADDR\n\ |
| 255 | --prefix-addresses Print complete address alongside disassembly\n\ |
| 256 | --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\ |
| 257 | --insn-width=WIDTH Display WIDTH bytes on a single line for -d\n\ |
| 258 | --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\ |
| 259 | --special-syms Include special symbols in symbol dumps\n\ |
| 260 | --prefix=PREFIX Add PREFIX to absolute paths for -S\n\ |
| 261 | --prefix-strip=LEVEL Strip initial directory names for -S\n")); |
| 262 | fprintf (stream, _("\ |
| 263 | --dwarf-depth=N Do not display DIEs at depth N or greater\n\ |
| 264 | --dwarf-start=N Display DIEs starting with N, at the same depth\n\ |
| 265 | or deeper\n\ |
| 266 | --dwarf-check Make additional dwarf internal consistency checks.\ |
| 267 | \n\n")); |
| 268 | list_supported_targets (program_name, stream); |
| 269 | list_supported_architectures (program_name, stream); |
| 270 | |
| 271 | disassembler_usage (stream); |
| 272 | |
| 273 | if (objdump_private_vectors[0] != NULL) |
| 274 | { |
| 275 | fprintf (stream, |
| 276 | _("\nOptions supported for -P/--private switch:\n")); |
| 277 | for (desc = objdump_private_vectors; *desc != NULL; desc++) |
| 278 | (*desc)->help (stream); |
| 279 | } |
| 280 | } |
| 281 | if (REPORT_BUGS_TO[0] && status == 0) |
| 282 | fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO); |
| 283 | exit (status); |
| 284 | } |
| 285 | |
| 286 | /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ |
| 287 | enum option_values |
| 288 | { |
| 289 | OPTION_ENDIAN=150, |
| 290 | OPTION_START_ADDRESS, |
| 291 | OPTION_STOP_ADDRESS, |
| 292 | OPTION_DWARF, |
| 293 | OPTION_PREFIX, |
| 294 | OPTION_PREFIX_STRIP, |
| 295 | OPTION_INSN_WIDTH, |
| 296 | OPTION_ADJUST_VMA, |
| 297 | OPTION_DWARF_DEPTH, |
| 298 | OPTION_DWARF_CHECK, |
| 299 | OPTION_DWARF_START |
| 300 | }; |
| 301 | |
| 302 | static struct option long_options[]= |
| 303 | { |
| 304 | {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA}, |
| 305 | {"all-headers", no_argument, NULL, 'x'}, |
| 306 | {"private-headers", no_argument, NULL, 'p'}, |
| 307 | {"private", required_argument, NULL, 'P'}, |
| 308 | {"architecture", required_argument, NULL, 'm'}, |
| 309 | {"archive-headers", no_argument, NULL, 'a'}, |
| 310 | {"debugging", no_argument, NULL, 'g'}, |
| 311 | {"debugging-tags", no_argument, NULL, 'e'}, |
| 312 | {"demangle", optional_argument, NULL, 'C'}, |
| 313 | {"disassemble", no_argument, NULL, 'd'}, |
| 314 | {"disassemble-all", no_argument, NULL, 'D'}, |
| 315 | {"disassembler-options", required_argument, NULL, 'M'}, |
| 316 | {"disassemble-zeroes", no_argument, NULL, 'z'}, |
| 317 | {"dynamic-reloc", no_argument, NULL, 'R'}, |
| 318 | {"dynamic-syms", no_argument, NULL, 'T'}, |
| 319 | {"endian", required_argument, NULL, OPTION_ENDIAN}, |
| 320 | {"file-headers", no_argument, NULL, 'f'}, |
| 321 | {"file-offsets", no_argument, NULL, 'F'}, |
| 322 | {"file-start-context", no_argument, &file_start_context, 1}, |
| 323 | {"full-contents", no_argument, NULL, 's'}, |
| 324 | {"headers", no_argument, NULL, 'h'}, |
| 325 | {"help", no_argument, NULL, 'H'}, |
| 326 | {"info", no_argument, NULL, 'i'}, |
| 327 | {"line-numbers", no_argument, NULL, 'l'}, |
| 328 | {"no-show-raw-insn", no_argument, &show_raw_insn, -1}, |
| 329 | {"prefix-addresses", no_argument, &prefix_addresses, 1}, |
| 330 | {"reloc", no_argument, NULL, 'r'}, |
| 331 | {"section", required_argument, NULL, 'j'}, |
| 332 | {"section-headers", no_argument, NULL, 'h'}, |
| 333 | {"show-raw-insn", no_argument, &show_raw_insn, 1}, |
| 334 | {"source", no_argument, NULL, 'S'}, |
| 335 | {"special-syms", no_argument, &dump_special_syms, 1}, |
| 336 | {"include", required_argument, NULL, 'I'}, |
| 337 | {"dwarf", optional_argument, NULL, OPTION_DWARF}, |
| 338 | {"stabs", no_argument, NULL, 'G'}, |
| 339 | {"start-address", required_argument, NULL, OPTION_START_ADDRESS}, |
| 340 | {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS}, |
| 341 | {"syms", no_argument, NULL, 't'}, |
| 342 | {"target", required_argument, NULL, 'b'}, |
| 343 | {"version", no_argument, NULL, 'V'}, |
| 344 | {"wide", no_argument, NULL, 'w'}, |
| 345 | {"prefix", required_argument, NULL, OPTION_PREFIX}, |
| 346 | {"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP}, |
| 347 | {"insn-width", required_argument, NULL, OPTION_INSN_WIDTH}, |
| 348 | {"dwarf-depth", required_argument, 0, OPTION_DWARF_DEPTH}, |
| 349 | {"dwarf-start", required_argument, 0, OPTION_DWARF_START}, |
| 350 | {"dwarf-check", no_argument, 0, OPTION_DWARF_CHECK}, |
| 351 | {0, no_argument, 0, 0} |
| 352 | }; |
| 353 | \f |
| 354 | static void |
| 355 | nonfatal (const char *msg) |
| 356 | { |
| 357 | bfd_nonfatal (msg); |
| 358 | exit_status = 1; |
| 359 | } |
| 360 | \f |
| 361 | /* Returns TRUE if the specified section should be dumped. */ |
| 362 | |
| 363 | static bfd_boolean |
| 364 | process_section_p (asection * section) |
| 365 | { |
| 366 | struct only * only; |
| 367 | |
| 368 | if (only_list == NULL) |
| 369 | return TRUE; |
| 370 | |
| 371 | for (only = only_list; only; only = only->next) |
| 372 | if (strcmp (only->name, section->name) == 0) |
| 373 | { |
| 374 | only->seen = TRUE; |
| 375 | return TRUE; |
| 376 | } |
| 377 | |
| 378 | return FALSE; |
| 379 | } |
| 380 | |
| 381 | /* Add an entry to the 'only' list. */ |
| 382 | |
| 383 | static void |
| 384 | add_only (char * name) |
| 385 | { |
| 386 | struct only * only; |
| 387 | |
| 388 | /* First check to make sure that we do not |
| 389 | already have an entry for this name. */ |
| 390 | for (only = only_list; only; only = only->next) |
| 391 | if (strcmp (only->name, name) == 0) |
| 392 | return; |
| 393 | |
| 394 | only = xmalloc (sizeof * only); |
| 395 | only->name = name; |
| 396 | only->seen = FALSE; |
| 397 | only->next = only_list; |
| 398 | only_list = only; |
| 399 | } |
| 400 | |
| 401 | /* Release the memory used by the 'only' list. |
| 402 | PR 11225: Issue a warning message for unseen sections. |
| 403 | Only do this if none of the sections were seen. This is mainly to support |
| 404 | tools like the GAS testsuite where an object file is dumped with a list of |
| 405 | generic section names known to be present in a range of different file |
| 406 | formats. */ |
| 407 | |
| 408 | static void |
| 409 | free_only_list (void) |
| 410 | { |
| 411 | bfd_boolean at_least_one_seen = FALSE; |
| 412 | struct only * only; |
| 413 | struct only * next; |
| 414 | |
| 415 | if (only_list == NULL) |
| 416 | return; |
| 417 | |
| 418 | for (only = only_list; only; only = only->next) |
| 419 | if (only->seen) |
| 420 | { |
| 421 | at_least_one_seen = TRUE; |
| 422 | break; |
| 423 | } |
| 424 | |
| 425 | for (only = only_list; only; only = next) |
| 426 | { |
| 427 | if (! at_least_one_seen) |
| 428 | { |
| 429 | non_fatal (_("section '%s' mentioned in a -j option, " |
| 430 | "but not found in any input file"), |
| 431 | only->name); |
| 432 | exit_status = 1; |
| 433 | } |
| 434 | next = only->next; |
| 435 | free (only); |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | \f |
| 440 | static void |
| 441 | dump_section_header (bfd *abfd, asection *section, |
| 442 | void *ignored ATTRIBUTE_UNUSED) |
| 443 | { |
| 444 | char *comma = ""; |
| 445 | unsigned int opb = bfd_octets_per_byte (abfd); |
| 446 | |
| 447 | /* Ignore linker created section. See elfNN_ia64_object_p in |
| 448 | bfd/elfxx-ia64.c. */ |
| 449 | if (section->flags & SEC_LINKER_CREATED) |
| 450 | return; |
| 451 | |
| 452 | /* PR 10413: Skip sections that we are ignoring. */ |
| 453 | if (! process_section_p (section)) |
| 454 | return; |
| 455 | |
| 456 | printf ("%3d %-13s %08lx ", section->index, |
| 457 | bfd_get_section_name (abfd, section), |
| 458 | (unsigned long) bfd_section_size (abfd, section) / opb); |
| 459 | bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section)); |
| 460 | printf (" "); |
| 461 | bfd_printf_vma (abfd, section->lma); |
| 462 | printf (" %08lx 2**%u", (unsigned long) section->filepos, |
| 463 | bfd_get_section_alignment (abfd, section)); |
| 464 | if (! wide_output) |
| 465 | printf ("\n "); |
| 466 | printf (" "); |
| 467 | |
| 468 | #define PF(x, y) \ |
| 469 | if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; } |
| 470 | |
| 471 | PF (SEC_HAS_CONTENTS, "CONTENTS"); |
| 472 | PF (SEC_ALLOC, "ALLOC"); |
| 473 | PF (SEC_CONSTRUCTOR, "CONSTRUCTOR"); |
| 474 | PF (SEC_LOAD, "LOAD"); |
| 475 | PF (SEC_RELOC, "RELOC"); |
| 476 | PF (SEC_READONLY, "READONLY"); |
| 477 | PF (SEC_CODE, "CODE"); |
| 478 | PF (SEC_DATA, "DATA"); |
| 479 | PF (SEC_ROM, "ROM"); |
| 480 | PF (SEC_DEBUGGING, "DEBUGGING"); |
| 481 | PF (SEC_NEVER_LOAD, "NEVER_LOAD"); |
| 482 | PF (SEC_EXCLUDE, "EXCLUDE"); |
| 483 | PF (SEC_SORT_ENTRIES, "SORT_ENTRIES"); |
| 484 | if (bfd_get_arch (abfd) == bfd_arch_tic54x) |
| 485 | { |
| 486 | PF (SEC_TIC54X_BLOCK, "BLOCK"); |
| 487 | PF (SEC_TIC54X_CLINK, "CLINK"); |
| 488 | } |
| 489 | PF (SEC_SMALL_DATA, "SMALL_DATA"); |
| 490 | if (bfd_get_flavour (abfd) == bfd_target_coff_flavour) |
| 491 | { |
| 492 | PF (SEC_COFF_SHARED, "SHARED"); |
| 493 | PF (SEC_COFF_NOREAD, "NOREAD"); |
| 494 | } |
| 495 | else if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
| 496 | PF (SEC_ELF_PURECODE, "PURECODE"); |
| 497 | PF (SEC_THREAD_LOCAL, "THREAD_LOCAL"); |
| 498 | PF (SEC_GROUP, "GROUP"); |
| 499 | if (bfd_get_arch (abfd) == bfd_arch_mep) |
| 500 | { |
| 501 | PF (SEC_MEP_VLIW, "VLIW"); |
| 502 | } |
| 503 | |
| 504 | if ((section->flags & SEC_LINK_ONCE) != 0) |
| 505 | { |
| 506 | const char *ls; |
| 507 | struct coff_comdat_info *comdat; |
| 508 | |
| 509 | switch (section->flags & SEC_LINK_DUPLICATES) |
| 510 | { |
| 511 | default: |
| 512 | abort (); |
| 513 | case SEC_LINK_DUPLICATES_DISCARD: |
| 514 | ls = "LINK_ONCE_DISCARD"; |
| 515 | break; |
| 516 | case SEC_LINK_DUPLICATES_ONE_ONLY: |
| 517 | ls = "LINK_ONCE_ONE_ONLY"; |
| 518 | break; |
| 519 | case SEC_LINK_DUPLICATES_SAME_SIZE: |
| 520 | ls = "LINK_ONCE_SAME_SIZE"; |
| 521 | break; |
| 522 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: |
| 523 | ls = "LINK_ONCE_SAME_CONTENTS"; |
| 524 | break; |
| 525 | } |
| 526 | printf ("%s%s", comma, ls); |
| 527 | |
| 528 | comdat = bfd_coff_get_comdat_section (abfd, section); |
| 529 | if (comdat != NULL) |
| 530 | printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol); |
| 531 | |
| 532 | comma = ", "; |
| 533 | } |
| 534 | |
| 535 | printf ("\n"); |
| 536 | #undef PF |
| 537 | } |
| 538 | |
| 539 | static void |
| 540 | dump_headers (bfd *abfd) |
| 541 | { |
| 542 | printf (_("Sections:\n")); |
| 543 | |
| 544 | #ifndef BFD64 |
| 545 | printf (_("Idx Name Size VMA LMA File off Algn")); |
| 546 | #else |
| 547 | /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */ |
| 548 | if (bfd_get_arch_size (abfd) == 32) |
| 549 | printf (_("Idx Name Size VMA LMA File off Algn")); |
| 550 | else |
| 551 | printf (_("Idx Name Size VMA LMA File off Algn")); |
| 552 | #endif |
| 553 | |
| 554 | if (wide_output) |
| 555 | printf (_(" Flags")); |
| 556 | printf ("\n"); |
| 557 | |
| 558 | bfd_map_over_sections (abfd, dump_section_header, NULL); |
| 559 | } |
| 560 | \f |
| 561 | static asymbol ** |
| 562 | slurp_symtab (bfd *abfd) |
| 563 | { |
| 564 | asymbol **sy = NULL; |
| 565 | long storage; |
| 566 | |
| 567 | if (!(bfd_get_file_flags (abfd) & HAS_SYMS)) |
| 568 | { |
| 569 | symcount = 0; |
| 570 | return NULL; |
| 571 | } |
| 572 | |
| 573 | storage = bfd_get_symtab_upper_bound (abfd); |
| 574 | if (storage < 0) |
| 575 | { |
| 576 | non_fatal (_("failed to read symbol table from: %s"), bfd_get_filename (abfd)); |
| 577 | bfd_fatal (_("error message was")); |
| 578 | } |
| 579 | if (storage) |
| 580 | sy = (asymbol **) xmalloc (storage); |
| 581 | |
| 582 | symcount = bfd_canonicalize_symtab (abfd, sy); |
| 583 | if (symcount < 0) |
| 584 | bfd_fatal (bfd_get_filename (abfd)); |
| 585 | return sy; |
| 586 | } |
| 587 | |
| 588 | /* Read in the dynamic symbols. */ |
| 589 | |
| 590 | static asymbol ** |
| 591 | slurp_dynamic_symtab (bfd *abfd) |
| 592 | { |
| 593 | asymbol **sy = NULL; |
| 594 | long storage; |
| 595 | |
| 596 | storage = bfd_get_dynamic_symtab_upper_bound (abfd); |
| 597 | if (storage < 0) |
| 598 | { |
| 599 | if (!(bfd_get_file_flags (abfd) & DYNAMIC)) |
| 600 | { |
| 601 | non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd)); |
| 602 | exit_status = 1; |
| 603 | dynsymcount = 0; |
| 604 | return NULL; |
| 605 | } |
| 606 | |
| 607 | bfd_fatal (bfd_get_filename (abfd)); |
| 608 | } |
| 609 | if (storage) |
| 610 | sy = (asymbol **) xmalloc (storage); |
| 611 | |
| 612 | dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy); |
| 613 | if (dynsymcount < 0) |
| 614 | bfd_fatal (bfd_get_filename (abfd)); |
| 615 | return sy; |
| 616 | } |
| 617 | |
| 618 | /* Some symbol names are significant and should be kept in the |
| 619 | table of sorted symbol names, even if they are marked as |
| 620 | debugging/section symbols. */ |
| 621 | |
| 622 | static bfd_boolean |
| 623 | is_significant_symbol_name (const char * name) |
| 624 | { |
| 625 | return strcmp (name, ".plt") == 0 |
| 626 | || strcmp (name, ".got") == 0 |
| 627 | || strcmp (name, ".plt.got") == 0; |
| 628 | } |
| 629 | |
| 630 | /* Filter out (in place) symbols that are useless for disassembly. |
| 631 | COUNT is the number of elements in SYMBOLS. |
| 632 | Return the number of useful symbols. */ |
| 633 | |
| 634 | static long |
| 635 | remove_useless_symbols (asymbol **symbols, long count) |
| 636 | { |
| 637 | asymbol **in_ptr = symbols, **out_ptr = symbols; |
| 638 | |
| 639 | while (--count >= 0) |
| 640 | { |
| 641 | asymbol *sym = *in_ptr++; |
| 642 | |
| 643 | if (sym->name == NULL || sym->name[0] == '\0') |
| 644 | continue; |
| 645 | if ((sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM)) |
| 646 | && ! is_significant_symbol_name (sym->name)) |
| 647 | continue; |
| 648 | if (bfd_is_und_section (sym->section) |
| 649 | || bfd_is_com_section (sym->section)) |
| 650 | continue; |
| 651 | |
| 652 | *out_ptr++ = sym; |
| 653 | } |
| 654 | return out_ptr - symbols; |
| 655 | } |
| 656 | |
| 657 | /* Sort symbols into value order. */ |
| 658 | |
| 659 | static int |
| 660 | compare_symbols (const void *ap, const void *bp) |
| 661 | { |
| 662 | const asymbol *a = * (const asymbol **) ap; |
| 663 | const asymbol *b = * (const asymbol **) bp; |
| 664 | const char *an; |
| 665 | const char *bn; |
| 666 | size_t anl; |
| 667 | size_t bnl; |
| 668 | bfd_boolean af; |
| 669 | bfd_boolean bf; |
| 670 | flagword aflags; |
| 671 | flagword bflags; |
| 672 | |
| 673 | if (bfd_asymbol_value (a) > bfd_asymbol_value (b)) |
| 674 | return 1; |
| 675 | else if (bfd_asymbol_value (a) < bfd_asymbol_value (b)) |
| 676 | return -1; |
| 677 | |
| 678 | if (a->section > b->section) |
| 679 | return 1; |
| 680 | else if (a->section < b->section) |
| 681 | return -1; |
| 682 | |
| 683 | an = bfd_asymbol_name (a); |
| 684 | bn = bfd_asymbol_name (b); |
| 685 | anl = strlen (an); |
| 686 | bnl = strlen (bn); |
| 687 | |
| 688 | /* The symbols gnu_compiled and gcc2_compiled convey no real |
| 689 | information, so put them after other symbols with the same value. */ |
| 690 | af = (strstr (an, "gnu_compiled") != NULL |
| 691 | || strstr (an, "gcc2_compiled") != NULL); |
| 692 | bf = (strstr (bn, "gnu_compiled") != NULL |
| 693 | || strstr (bn, "gcc2_compiled") != NULL); |
| 694 | |
| 695 | if (af && ! bf) |
| 696 | return 1; |
| 697 | if (! af && bf) |
| 698 | return -1; |
| 699 | |
| 700 | /* We use a heuristic for the file name, to try to sort it after |
| 701 | more useful symbols. It may not work on non Unix systems, but it |
| 702 | doesn't really matter; the only difference is precisely which |
| 703 | symbol names get printed. */ |
| 704 | |
| 705 | #define file_symbol(s, sn, snl) \ |
| 706 | (((s)->flags & BSF_FILE) != 0 \ |
| 707 | || ((sn)[(snl) - 2] == '.' \ |
| 708 | && ((sn)[(snl) - 1] == 'o' \ |
| 709 | || (sn)[(snl) - 1] == 'a'))) |
| 710 | |
| 711 | af = file_symbol (a, an, anl); |
| 712 | bf = file_symbol (b, bn, bnl); |
| 713 | |
| 714 | if (af && ! bf) |
| 715 | return 1; |
| 716 | if (! af && bf) |
| 717 | return -1; |
| 718 | |
| 719 | /* Try to sort global symbols before local symbols before function |
| 720 | symbols before debugging symbols. */ |
| 721 | |
| 722 | aflags = a->flags; |
| 723 | bflags = b->flags; |
| 724 | |
| 725 | if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING)) |
| 726 | { |
| 727 | if ((aflags & BSF_DEBUGGING) != 0) |
| 728 | return 1; |
| 729 | else |
| 730 | return -1; |
| 731 | } |
| 732 | if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION)) |
| 733 | { |
| 734 | if ((aflags & BSF_FUNCTION) != 0) |
| 735 | return -1; |
| 736 | else |
| 737 | return 1; |
| 738 | } |
| 739 | if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL)) |
| 740 | { |
| 741 | if ((aflags & BSF_LOCAL) != 0) |
| 742 | return 1; |
| 743 | else |
| 744 | return -1; |
| 745 | } |
| 746 | if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL)) |
| 747 | { |
| 748 | if ((aflags & BSF_GLOBAL) != 0) |
| 749 | return -1; |
| 750 | else |
| 751 | return 1; |
| 752 | } |
| 753 | |
| 754 | if (bfd_get_flavour (bfd_asymbol_bfd (a)) == bfd_target_elf_flavour |
| 755 | && bfd_get_flavour (bfd_asymbol_bfd (b)) == bfd_target_elf_flavour) |
| 756 | { |
| 757 | bfd_vma asz, bsz; |
| 758 | |
| 759 | asz = 0; |
| 760 | if ((a->flags & BSF_SYNTHETIC) == 0) |
| 761 | asz = ((elf_symbol_type *) a)->internal_elf_sym.st_size; |
| 762 | bsz = 0; |
| 763 | if ((b->flags & BSF_SYNTHETIC) == 0) |
| 764 | bsz = ((elf_symbol_type *) b)->internal_elf_sym.st_size; |
| 765 | if (asz != bsz) |
| 766 | return asz > bsz ? -1 : 1; |
| 767 | } |
| 768 | |
| 769 | /* Symbols that start with '.' might be section names, so sort them |
| 770 | after symbols that don't start with '.'. */ |
| 771 | if (an[0] == '.' && bn[0] != '.') |
| 772 | return 1; |
| 773 | if (an[0] != '.' && bn[0] == '.') |
| 774 | return -1; |
| 775 | |
| 776 | /* Finally, if we can't distinguish them in any other way, try to |
| 777 | get consistent results by sorting the symbols by name. */ |
| 778 | return strcmp (an, bn); |
| 779 | } |
| 780 | |
| 781 | /* Sort relocs into address order. */ |
| 782 | |
| 783 | static int |
| 784 | compare_relocs (const void *ap, const void *bp) |
| 785 | { |
| 786 | const arelent *a = * (const arelent **) ap; |
| 787 | const arelent *b = * (const arelent **) bp; |
| 788 | |
| 789 | if (a->address > b->address) |
| 790 | return 1; |
| 791 | else if (a->address < b->address) |
| 792 | return -1; |
| 793 | |
| 794 | /* So that associated relocations tied to the same address show up |
| 795 | in the correct order, we don't do any further sorting. */ |
| 796 | if (a > b) |
| 797 | return 1; |
| 798 | else if (a < b) |
| 799 | return -1; |
| 800 | else |
| 801 | return 0; |
| 802 | } |
| 803 | |
| 804 | /* Print an address (VMA) to the output stream in INFO. |
| 805 | If SKIP_ZEROES is TRUE, omit leading zeroes. */ |
| 806 | |
| 807 | static void |
| 808 | objdump_print_value (bfd_vma vma, struct disassemble_info *inf, |
| 809 | bfd_boolean skip_zeroes) |
| 810 | { |
| 811 | char buf[30]; |
| 812 | char *p; |
| 813 | struct objdump_disasm_info *aux; |
| 814 | |
| 815 | aux = (struct objdump_disasm_info *) inf->application_data; |
| 816 | bfd_sprintf_vma (aux->abfd, buf, vma); |
| 817 | if (! skip_zeroes) |
| 818 | p = buf; |
| 819 | else |
| 820 | { |
| 821 | for (p = buf; *p == '0'; ++p) |
| 822 | ; |
| 823 | if (*p == '\0') |
| 824 | --p; |
| 825 | } |
| 826 | (*inf->fprintf_func) (inf->stream, "%s", p); |
| 827 | } |
| 828 | |
| 829 | /* Print the name of a symbol. */ |
| 830 | |
| 831 | static void |
| 832 | objdump_print_symname (bfd *abfd, struct disassemble_info *inf, |
| 833 | asymbol *sym) |
| 834 | { |
| 835 | char *alloc; |
| 836 | const char *name, *version_string = NULL; |
| 837 | bfd_boolean hidden = FALSE; |
| 838 | |
| 839 | alloc = NULL; |
| 840 | name = bfd_asymbol_name (sym); |
| 841 | if (do_demangle && name[0] != '\0') |
| 842 | { |
| 843 | /* Demangle the name. */ |
| 844 | alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS); |
| 845 | if (alloc != NULL) |
| 846 | name = alloc; |
| 847 | } |
| 848 | |
| 849 | if ((sym->flags & BSF_SYNTHETIC) == 0) |
| 850 | version_string = bfd_get_symbol_version_string (abfd, sym, &hidden); |
| 851 | |
| 852 | if (bfd_is_und_section (bfd_get_section (sym))) |
| 853 | hidden = TRUE; |
| 854 | |
| 855 | if (inf != NULL) |
| 856 | { |
| 857 | (*inf->fprintf_func) (inf->stream, "%s", name); |
| 858 | if (version_string && *version_string != '\0') |
| 859 | (*inf->fprintf_func) (inf->stream, hidden ? "@%s" : "@@%s", |
| 860 | version_string); |
| 861 | } |
| 862 | else |
| 863 | { |
| 864 | printf ("%s", name); |
| 865 | if (version_string && *version_string != '\0') |
| 866 | printf (hidden ? "@%s" : "@@%s", version_string); |
| 867 | } |
| 868 | |
| 869 | if (alloc != NULL) |
| 870 | free (alloc); |
| 871 | } |
| 872 | |
| 873 | /* Locate a symbol given a bfd and a section (from INFO->application_data), |
| 874 | and a VMA. If INFO->application_data->require_sec is TRUE, then always |
| 875 | require the symbol to be in the section. Returns NULL if there is no |
| 876 | suitable symbol. If PLACE is not NULL, then *PLACE is set to the index |
| 877 | of the symbol in sorted_syms. */ |
| 878 | |
| 879 | static asymbol * |
| 880 | find_symbol_for_address (bfd_vma vma, |
| 881 | struct disassemble_info *inf, |
| 882 | long *place) |
| 883 | { |
| 884 | /* @@ Would it speed things up to cache the last two symbols returned, |
| 885 | and maybe their address ranges? For many processors, only one memory |
| 886 | operand can be present at a time, so the 2-entry cache wouldn't be |
| 887 | constantly churned by code doing heavy memory accesses. */ |
| 888 | |
| 889 | /* Indices in `sorted_syms'. */ |
| 890 | long min = 0; |
| 891 | long max_count = sorted_symcount; |
| 892 | long thisplace; |
| 893 | struct objdump_disasm_info *aux; |
| 894 | bfd *abfd; |
| 895 | asection *sec; |
| 896 | unsigned int opb; |
| 897 | bfd_boolean want_section; |
| 898 | |
| 899 | if (sorted_symcount < 1) |
| 900 | return NULL; |
| 901 | |
| 902 | aux = (struct objdump_disasm_info *) inf->application_data; |
| 903 | abfd = aux->abfd; |
| 904 | sec = aux->sec; |
| 905 | opb = inf->octets_per_byte; |
| 906 | |
| 907 | /* Perform a binary search looking for the closest symbol to the |
| 908 | required value. We are searching the range (min, max_count]. */ |
| 909 | while (min + 1 < max_count) |
| 910 | { |
| 911 | asymbol *sym; |
| 912 | |
| 913 | thisplace = (max_count + min) / 2; |
| 914 | sym = sorted_syms[thisplace]; |
| 915 | |
| 916 | if (bfd_asymbol_value (sym) > vma) |
| 917 | max_count = thisplace; |
| 918 | else if (bfd_asymbol_value (sym) < vma) |
| 919 | min = thisplace; |
| 920 | else |
| 921 | { |
| 922 | min = thisplace; |
| 923 | break; |
| 924 | } |
| 925 | } |
| 926 | |
| 927 | /* The symbol we want is now in min, the low end of the range we |
| 928 | were searching. If there are several symbols with the same |
| 929 | value, we want the first (non-section/non-debugging) one. */ |
| 930 | thisplace = min; |
| 931 | while (thisplace > 0 |
| 932 | && (bfd_asymbol_value (sorted_syms[thisplace]) |
| 933 | == bfd_asymbol_value (sorted_syms[thisplace - 1])) |
| 934 | && ((sorted_syms[thisplace - 1]->flags |
| 935 | & (BSF_SECTION_SYM | BSF_DEBUGGING)) == 0) |
| 936 | ) |
| 937 | --thisplace; |
| 938 | |
| 939 | /* Prefer a symbol in the current section if we have multple symbols |
| 940 | with the same value, as can occur with overlays or zero size |
| 941 | sections. */ |
| 942 | min = thisplace; |
| 943 | while (min < max_count |
| 944 | && (bfd_asymbol_value (sorted_syms[min]) |
| 945 | == bfd_asymbol_value (sorted_syms[thisplace]))) |
| 946 | { |
| 947 | if (sorted_syms[min]->section == sec |
| 948 | && inf->symbol_is_valid (sorted_syms[min], inf)) |
| 949 | { |
| 950 | thisplace = min; |
| 951 | |
| 952 | if (place != NULL) |
| 953 | *place = thisplace; |
| 954 | |
| 955 | return sorted_syms[thisplace]; |
| 956 | } |
| 957 | ++min; |
| 958 | } |
| 959 | |
| 960 | /* If the file is relocatable, and the symbol could be from this |
| 961 | section, prefer a symbol from this section over symbols from |
| 962 | others, even if the other symbol's value might be closer. |
| 963 | |
| 964 | Note that this may be wrong for some symbol references if the |
| 965 | sections have overlapping memory ranges, but in that case there's |
| 966 | no way to tell what's desired without looking at the relocation |
| 967 | table. |
| 968 | |
| 969 | Also give the target a chance to reject symbols. */ |
| 970 | want_section = (aux->require_sec |
| 971 | || ((abfd->flags & HAS_RELOC) != 0 |
| 972 | && vma >= bfd_get_section_vma (abfd, sec) |
| 973 | && vma < (bfd_get_section_vma (abfd, sec) |
| 974 | + bfd_section_size (abfd, sec) / opb))); |
| 975 | if ((sorted_syms[thisplace]->section != sec && want_section) |
| 976 | || ! inf->symbol_is_valid (sorted_syms[thisplace], inf)) |
| 977 | { |
| 978 | long i; |
| 979 | long newplace = sorted_symcount; |
| 980 | |
| 981 | for (i = min - 1; i >= 0; i--) |
| 982 | { |
| 983 | if ((sorted_syms[i]->section == sec || !want_section) |
| 984 | && inf->symbol_is_valid (sorted_syms[i], inf)) |
| 985 | { |
| 986 | if (newplace == sorted_symcount) |
| 987 | newplace = i; |
| 988 | |
| 989 | if (bfd_asymbol_value (sorted_syms[i]) |
| 990 | != bfd_asymbol_value (sorted_syms[newplace])) |
| 991 | break; |
| 992 | |
| 993 | /* Remember this symbol and keep searching until we reach |
| 994 | an earlier address. */ |
| 995 | newplace = i; |
| 996 | } |
| 997 | } |
| 998 | |
| 999 | if (newplace != sorted_symcount) |
| 1000 | thisplace = newplace; |
| 1001 | else |
| 1002 | { |
| 1003 | /* We didn't find a good symbol with a smaller value. |
| 1004 | Look for one with a larger value. */ |
| 1005 | for (i = thisplace + 1; i < sorted_symcount; i++) |
| 1006 | { |
| 1007 | if ((sorted_syms[i]->section == sec || !want_section) |
| 1008 | && inf->symbol_is_valid (sorted_syms[i], inf)) |
| 1009 | { |
| 1010 | thisplace = i; |
| 1011 | break; |
| 1012 | } |
| 1013 | } |
| 1014 | } |
| 1015 | |
| 1016 | if ((sorted_syms[thisplace]->section != sec && want_section) |
| 1017 | || ! inf->symbol_is_valid (sorted_syms[thisplace], inf)) |
| 1018 | /* There is no suitable symbol. */ |
| 1019 | return NULL; |
| 1020 | } |
| 1021 | |
| 1022 | /* If we have not found an exact match for the specified address |
| 1023 | and we have dynamic relocations available, then we can produce |
| 1024 | a better result by matching a relocation to the address and |
| 1025 | using the symbol associated with that relocation. */ |
| 1026 | if (!want_section |
| 1027 | && aux->dynrelbuf != NULL |
| 1028 | && sorted_syms[thisplace]->value != vma |
| 1029 | /* If we have matched a synthetic symbol, then stick with that. */ |
| 1030 | && (sorted_syms[thisplace]->flags & BSF_SYNTHETIC) == 0) |
| 1031 | { |
| 1032 | long rel_count; |
| 1033 | arelent ** rel_pp; |
| 1034 | |
| 1035 | for (rel_count = aux->dynrelcount, rel_pp = aux->dynrelbuf; |
| 1036 | rel_count--;) |
| 1037 | { |
| 1038 | arelent * rel = rel_pp[rel_count]; |
| 1039 | |
| 1040 | if (rel->address == vma |
| 1041 | && rel->sym_ptr_ptr != NULL |
| 1042 | /* Absolute relocations do not provide a more helpful symbolic address. */ |
| 1043 | && ! bfd_is_abs_section ((* rel->sym_ptr_ptr)->section)) |
| 1044 | { |
| 1045 | if (place != NULL) |
| 1046 | * place = thisplace; |
| 1047 | return * rel->sym_ptr_ptr; |
| 1048 | } |
| 1049 | |
| 1050 | /* We are scanning backwards, so if we go below the target address |
| 1051 | we have failed. */ |
| 1052 | if (rel_pp[rel_count]->address < vma) |
| 1053 | break; |
| 1054 | } |
| 1055 | } |
| 1056 | |
| 1057 | if (place != NULL) |
| 1058 | *place = thisplace; |
| 1059 | |
| 1060 | return sorted_syms[thisplace]; |
| 1061 | } |
| 1062 | |
| 1063 | /* Print an address and the offset to the nearest symbol. */ |
| 1064 | |
| 1065 | static void |
| 1066 | objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym, |
| 1067 | bfd_vma vma, struct disassemble_info *inf, |
| 1068 | bfd_boolean skip_zeroes) |
| 1069 | { |
| 1070 | objdump_print_value (vma, inf, skip_zeroes); |
| 1071 | |
| 1072 | if (sym == NULL) |
| 1073 | { |
| 1074 | bfd_vma secaddr; |
| 1075 | |
| 1076 | (*inf->fprintf_func) (inf->stream, " <%s", |
| 1077 | bfd_get_section_name (abfd, sec)); |
| 1078 | secaddr = bfd_get_section_vma (abfd, sec); |
| 1079 | if (vma < secaddr) |
| 1080 | { |
| 1081 | (*inf->fprintf_func) (inf->stream, "-0x"); |
| 1082 | objdump_print_value (secaddr - vma, inf, TRUE); |
| 1083 | } |
| 1084 | else if (vma > secaddr) |
| 1085 | { |
| 1086 | (*inf->fprintf_func) (inf->stream, "+0x"); |
| 1087 | objdump_print_value (vma - secaddr, inf, TRUE); |
| 1088 | } |
| 1089 | (*inf->fprintf_func) (inf->stream, ">"); |
| 1090 | } |
| 1091 | else |
| 1092 | { |
| 1093 | (*inf->fprintf_func) (inf->stream, " <"); |
| 1094 | |
| 1095 | objdump_print_symname (abfd, inf, sym); |
| 1096 | |
| 1097 | if (bfd_asymbol_value (sym) == vma) |
| 1098 | ; |
| 1099 | /* Undefined symbols in an executables and dynamic objects do not have |
| 1100 | a value associated with them, so it does not make sense to display |
| 1101 | an offset relative to them. Normally we would not be provided with |
| 1102 | this kind of symbol, but the target backend might choose to do so, |
| 1103 | and the code in find_symbol_for_address might return an as yet |
| 1104 | unresolved symbol associated with a dynamic reloc. */ |
| 1105 | else if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC)) |
| 1106 | && bfd_is_und_section (sym->section)) |
| 1107 | ; |
| 1108 | else if (bfd_asymbol_value (sym) > vma) |
| 1109 | { |
| 1110 | (*inf->fprintf_func) (inf->stream, "-0x"); |
| 1111 | objdump_print_value (bfd_asymbol_value (sym) - vma, inf, TRUE); |
| 1112 | } |
| 1113 | else if (vma > bfd_asymbol_value (sym)) |
| 1114 | { |
| 1115 | (*inf->fprintf_func) (inf->stream, "+0x"); |
| 1116 | objdump_print_value (vma - bfd_asymbol_value (sym), inf, TRUE); |
| 1117 | } |
| 1118 | |
| 1119 | (*inf->fprintf_func) (inf->stream, ">"); |
| 1120 | } |
| 1121 | |
| 1122 | if (display_file_offsets) |
| 1123 | inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"), |
| 1124 | (long int)(sec->filepos + (vma - sec->vma))); |
| 1125 | } |
| 1126 | |
| 1127 | /* Print an address (VMA), symbolically if possible. |
| 1128 | If SKIP_ZEROES is TRUE, don't output leading zeroes. */ |
| 1129 | |
| 1130 | static void |
| 1131 | objdump_print_addr (bfd_vma vma, |
| 1132 | struct disassemble_info *inf, |
| 1133 | bfd_boolean skip_zeroes) |
| 1134 | { |
| 1135 | struct objdump_disasm_info *aux; |
| 1136 | asymbol *sym = NULL; |
| 1137 | bfd_boolean skip_find = FALSE; |
| 1138 | |
| 1139 | aux = (struct objdump_disasm_info *) inf->application_data; |
| 1140 | |
| 1141 | if (sorted_symcount < 1) |
| 1142 | { |
| 1143 | (*inf->fprintf_func) (inf->stream, "0x"); |
| 1144 | objdump_print_value (vma, inf, skip_zeroes); |
| 1145 | |
| 1146 | if (display_file_offsets) |
| 1147 | inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"), |
| 1148 | (long int)(aux->sec->filepos + (vma - aux->sec->vma))); |
| 1149 | return; |
| 1150 | } |
| 1151 | |
| 1152 | if (aux->reloc != NULL |
| 1153 | && aux->reloc->sym_ptr_ptr != NULL |
| 1154 | && * aux->reloc->sym_ptr_ptr != NULL) |
| 1155 | { |
| 1156 | sym = * aux->reloc->sym_ptr_ptr; |
| 1157 | |
| 1158 | /* Adjust the vma to the reloc. */ |
| 1159 | vma += bfd_asymbol_value (sym); |
| 1160 | |
| 1161 | if (bfd_is_und_section (bfd_get_section (sym))) |
| 1162 | skip_find = TRUE; |
| 1163 | } |
| 1164 | |
| 1165 | if (!skip_find) |
| 1166 | sym = find_symbol_for_address (vma, inf, NULL); |
| 1167 | |
| 1168 | objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, inf, |
| 1169 | skip_zeroes); |
| 1170 | } |
| 1171 | |
| 1172 | /* Print VMA to INFO. This function is passed to the disassembler |
| 1173 | routine. */ |
| 1174 | |
| 1175 | static void |
| 1176 | objdump_print_address (bfd_vma vma, struct disassemble_info *inf) |
| 1177 | { |
| 1178 | objdump_print_addr (vma, inf, ! prefix_addresses); |
| 1179 | } |
| 1180 | |
| 1181 | /* Determine if the given address has a symbol associated with it. */ |
| 1182 | |
| 1183 | static int |
| 1184 | objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * inf) |
| 1185 | { |
| 1186 | asymbol * sym; |
| 1187 | |
| 1188 | sym = find_symbol_for_address (vma, inf, NULL); |
| 1189 | |
| 1190 | return (sym != NULL && (bfd_asymbol_value (sym) == vma)); |
| 1191 | } |
| 1192 | |
| 1193 | /* Hold the last function name and the last line number we displayed |
| 1194 | in a disassembly. */ |
| 1195 | |
| 1196 | static char *prev_functionname; |
| 1197 | static unsigned int prev_line; |
| 1198 | static unsigned int prev_discriminator; |
| 1199 | |
| 1200 | /* We keep a list of all files that we have seen when doing a |
| 1201 | disassembly with source, so that we know how much of the file to |
| 1202 | display. This can be important for inlined functions. */ |
| 1203 | |
| 1204 | struct print_file_list |
| 1205 | { |
| 1206 | struct print_file_list *next; |
| 1207 | const char *filename; |
| 1208 | const char *modname; |
| 1209 | const char *map; |
| 1210 | size_t mapsize; |
| 1211 | const char **linemap; |
| 1212 | unsigned maxline; |
| 1213 | unsigned last_line; |
| 1214 | unsigned max_printed; |
| 1215 | int first; |
| 1216 | }; |
| 1217 | |
| 1218 | static struct print_file_list *print_files; |
| 1219 | |
| 1220 | /* The number of preceding context lines to show when we start |
| 1221 | displaying a file for the first time. */ |
| 1222 | |
| 1223 | #define SHOW_PRECEDING_CONTEXT_LINES (5) |
| 1224 | |
| 1225 | /* Read a complete file into memory. */ |
| 1226 | |
| 1227 | static const char * |
| 1228 | slurp_file (const char *fn, size_t *size) |
| 1229 | { |
| 1230 | #ifdef HAVE_MMAP |
| 1231 | int ps = getpagesize (); |
| 1232 | size_t msize; |
| 1233 | #endif |
| 1234 | const char *map; |
| 1235 | struct stat st; |
| 1236 | int fd = open (fn, O_RDONLY | O_BINARY); |
| 1237 | |
| 1238 | if (fd < 0) |
| 1239 | return NULL; |
| 1240 | if (fstat (fd, &st) < 0) |
| 1241 | { |
| 1242 | close (fd); |
| 1243 | return NULL; |
| 1244 | } |
| 1245 | *size = st.st_size; |
| 1246 | #ifdef HAVE_MMAP |
| 1247 | msize = (*size + ps - 1) & ~(ps - 1); |
| 1248 | map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0); |
| 1249 | if (map != (char *) -1L) |
| 1250 | { |
| 1251 | close (fd); |
| 1252 | return map; |
| 1253 | } |
| 1254 | #endif |
| 1255 | map = (const char *) malloc (*size); |
| 1256 | if (!map || (size_t) read (fd, (char *) map, *size) != *size) |
| 1257 | { |
| 1258 | free ((void *) map); |
| 1259 | map = NULL; |
| 1260 | } |
| 1261 | close (fd); |
| 1262 | return map; |
| 1263 | } |
| 1264 | |
| 1265 | #define line_map_decrease 5 |
| 1266 | |
| 1267 | /* Precompute array of lines for a mapped file. */ |
| 1268 | |
| 1269 | static const char ** |
| 1270 | index_file (const char *map, size_t size, unsigned int *maxline) |
| 1271 | { |
| 1272 | const char *p, *lstart, *end; |
| 1273 | int chars_per_line = 45; /* First iteration will use 40. */ |
| 1274 | unsigned int lineno; |
| 1275 | const char **linemap = NULL; |
| 1276 | unsigned long line_map_size = 0; |
| 1277 | |
| 1278 | lineno = 0; |
| 1279 | lstart = map; |
| 1280 | end = map + size; |
| 1281 | |
| 1282 | for (p = map; p < end; p++) |
| 1283 | { |
| 1284 | if (*p == '\n') |
| 1285 | { |
| 1286 | if (p + 1 < end && p[1] == '\r') |
| 1287 | p++; |
| 1288 | } |
| 1289 | else if (*p == '\r') |
| 1290 | { |
| 1291 | if (p + 1 < end && p[1] == '\n') |
| 1292 | p++; |
| 1293 | } |
| 1294 | else |
| 1295 | continue; |
| 1296 | |
| 1297 | /* End of line found. */ |
| 1298 | |
| 1299 | if (linemap == NULL || line_map_size < lineno + 1) |
| 1300 | { |
| 1301 | unsigned long newsize; |
| 1302 | |
| 1303 | chars_per_line -= line_map_decrease; |
| 1304 | if (chars_per_line <= 1) |
| 1305 | chars_per_line = 1; |
| 1306 | line_map_size = size / chars_per_line + 1; |
| 1307 | if (line_map_size < lineno + 1) |
| 1308 | line_map_size = lineno + 1; |
| 1309 | newsize = line_map_size * sizeof (char *); |
| 1310 | linemap = (const char **) xrealloc (linemap, newsize); |
| 1311 | } |
| 1312 | |
| 1313 | linemap[lineno++] = lstart; |
| 1314 | lstart = p + 1; |
| 1315 | } |
| 1316 | |
| 1317 | *maxline = lineno; |
| 1318 | return linemap; |
| 1319 | } |
| 1320 | |
| 1321 | /* Tries to open MODNAME, and if successful adds a node to print_files |
| 1322 | linked list and returns that node. Returns NULL on failure. */ |
| 1323 | |
| 1324 | static struct print_file_list * |
| 1325 | try_print_file_open (const char *origname, const char *modname) |
| 1326 | { |
| 1327 | struct print_file_list *p; |
| 1328 | |
| 1329 | p = (struct print_file_list *) xmalloc (sizeof (struct print_file_list)); |
| 1330 | |
| 1331 | p->map = slurp_file (modname, &p->mapsize); |
| 1332 | if (p->map == NULL) |
| 1333 | { |
| 1334 | free (p); |
| 1335 | return NULL; |
| 1336 | } |
| 1337 | |
| 1338 | p->linemap = index_file (p->map, p->mapsize, &p->maxline); |
| 1339 | p->last_line = 0; |
| 1340 | p->max_printed = 0; |
| 1341 | p->filename = origname; |
| 1342 | p->modname = modname; |
| 1343 | p->next = print_files; |
| 1344 | p->first = 1; |
| 1345 | print_files = p; |
| 1346 | return p; |
| 1347 | } |
| 1348 | |
| 1349 | /* If the source file, as described in the symtab, is not found |
| 1350 | try to locate it in one of the paths specified with -I |
| 1351 | If found, add location to print_files linked list. */ |
| 1352 | |
| 1353 | static struct print_file_list * |
| 1354 | update_source_path (const char *filename) |
| 1355 | { |
| 1356 | struct print_file_list *p; |
| 1357 | const char *fname; |
| 1358 | int i; |
| 1359 | |
| 1360 | p = try_print_file_open (filename, filename); |
| 1361 | if (p != NULL) |
| 1362 | return p; |
| 1363 | |
| 1364 | if (include_path_count == 0) |
| 1365 | return NULL; |
| 1366 | |
| 1367 | /* Get the name of the file. */ |
| 1368 | fname = lbasename (filename); |
| 1369 | |
| 1370 | /* If file exists under a new path, we need to add it to the list |
| 1371 | so that show_line knows about it. */ |
| 1372 | for (i = 0; i < include_path_count; i++) |
| 1373 | { |
| 1374 | char *modname = concat (include_paths[i], "/", fname, (const char *) 0); |
| 1375 | |
| 1376 | p = try_print_file_open (filename, modname); |
| 1377 | if (p) |
| 1378 | return p; |
| 1379 | |
| 1380 | free (modname); |
| 1381 | } |
| 1382 | |
| 1383 | return NULL; |
| 1384 | } |
| 1385 | |
| 1386 | /* Print a source file line. */ |
| 1387 | |
| 1388 | static void |
| 1389 | print_line (struct print_file_list *p, unsigned int linenum) |
| 1390 | { |
| 1391 | const char *l; |
| 1392 | size_t len; |
| 1393 | |
| 1394 | --linenum; |
| 1395 | if (linenum >= p->maxline) |
| 1396 | return; |
| 1397 | l = p->linemap [linenum]; |
| 1398 | /* Test fwrite return value to quiet glibc warning. */ |
| 1399 | len = strcspn (l, "\n\r"); |
| 1400 | if (len == 0 || fwrite (l, len, 1, stdout) == 1) |
| 1401 | putchar ('\n'); |
| 1402 | } |
| 1403 | |
| 1404 | /* Print a range of source code lines. */ |
| 1405 | |
| 1406 | static void |
| 1407 | dump_lines (struct print_file_list *p, unsigned int start, unsigned int end) |
| 1408 | { |
| 1409 | if (p->map == NULL) |
| 1410 | return; |
| 1411 | while (start <= end) |
| 1412 | { |
| 1413 | print_line (p, start); |
| 1414 | start++; |
| 1415 | } |
| 1416 | } |
| 1417 | |
| 1418 | /* Show the line number, or the source line, in a disassembly |
| 1419 | listing. */ |
| 1420 | |
| 1421 | static void |
| 1422 | show_line (bfd *abfd, asection *section, bfd_vma addr_offset) |
| 1423 | { |
| 1424 | const char *filename; |
| 1425 | const char *functionname; |
| 1426 | unsigned int linenumber; |
| 1427 | unsigned int discriminator; |
| 1428 | bfd_boolean reloc; |
| 1429 | char *path = NULL; |
| 1430 | |
| 1431 | if (! with_line_numbers && ! with_source_code) |
| 1432 | return; |
| 1433 | |
| 1434 | if (! bfd_find_nearest_line_discriminator (abfd, section, syms, addr_offset, |
| 1435 | &filename, &functionname, |
| 1436 | &linenumber, &discriminator)) |
| 1437 | return; |
| 1438 | |
| 1439 | if (filename != NULL && *filename == '\0') |
| 1440 | filename = NULL; |
| 1441 | if (functionname != NULL && *functionname == '\0') |
| 1442 | functionname = NULL; |
| 1443 | |
| 1444 | if (filename |
| 1445 | && IS_ABSOLUTE_PATH (filename) |
| 1446 | && prefix) |
| 1447 | { |
| 1448 | char *path_up; |
| 1449 | const char *fname = filename; |
| 1450 | |
| 1451 | path = xmalloc (prefix_length + PATH_MAX + 1); |
| 1452 | |
| 1453 | if (prefix_length) |
| 1454 | memcpy (path, prefix, prefix_length); |
| 1455 | path_up = path + prefix_length; |
| 1456 | |
| 1457 | /* Build relocated filename, stripping off leading directories |
| 1458 | from the initial filename if requested. */ |
| 1459 | if (prefix_strip > 0) |
| 1460 | { |
| 1461 | int level = 0; |
| 1462 | const char *s; |
| 1463 | |
| 1464 | /* Skip selected directory levels. */ |
| 1465 | for (s = fname + 1; *s != '\0' && level < prefix_strip; s++) |
| 1466 | if (IS_DIR_SEPARATOR(*s)) |
| 1467 | { |
| 1468 | fname = s; |
| 1469 | level++; |
| 1470 | } |
| 1471 | } |
| 1472 | |
| 1473 | /* Update complete filename. */ |
| 1474 | strncpy (path_up, fname, PATH_MAX); |
| 1475 | path_up[PATH_MAX] = '\0'; |
| 1476 | |
| 1477 | filename = path; |
| 1478 | reloc = TRUE; |
| 1479 | } |
| 1480 | else |
| 1481 | reloc = FALSE; |
| 1482 | |
| 1483 | if (with_line_numbers) |
| 1484 | { |
| 1485 | if (functionname != NULL |
| 1486 | && (prev_functionname == NULL |
| 1487 | || strcmp (functionname, prev_functionname) != 0)) |
| 1488 | printf ("%s():\n", functionname); |
| 1489 | if (linenumber > 0 && (linenumber != prev_line || |
| 1490 | (discriminator != prev_discriminator))) |
| 1491 | { |
| 1492 | if (discriminator > 0) |
| 1493 | printf ("%s:%u (discriminator %u)\n", filename == NULL ? "???" : filename, |
| 1494 | linenumber, discriminator); |
| 1495 | else |
| 1496 | printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber); |
| 1497 | } |
| 1498 | } |
| 1499 | |
| 1500 | if (with_source_code |
| 1501 | && filename != NULL |
| 1502 | && linenumber > 0) |
| 1503 | { |
| 1504 | struct print_file_list **pp, *p; |
| 1505 | unsigned l; |
| 1506 | |
| 1507 | for (pp = &print_files; *pp != NULL; pp = &(*pp)->next) |
| 1508 | if (filename_cmp ((*pp)->filename, filename) == 0) |
| 1509 | break; |
| 1510 | p = *pp; |
| 1511 | |
| 1512 | if (p == NULL) |
| 1513 | { |
| 1514 | if (reloc) |
| 1515 | filename = xstrdup (filename); |
| 1516 | p = update_source_path (filename); |
| 1517 | } |
| 1518 | |
| 1519 | if (p != NULL && linenumber != p->last_line) |
| 1520 | { |
| 1521 | if (file_start_context && p->first) |
| 1522 | l = 1; |
| 1523 | else |
| 1524 | { |
| 1525 | l = linenumber - SHOW_PRECEDING_CONTEXT_LINES; |
| 1526 | if (l >= linenumber) |
| 1527 | l = 1; |
| 1528 | if (p->max_printed >= l) |
| 1529 | { |
| 1530 | if (p->max_printed < linenumber) |
| 1531 | l = p->max_printed + 1; |
| 1532 | else |
| 1533 | l = linenumber; |
| 1534 | } |
| 1535 | } |
| 1536 | dump_lines (p, l, linenumber); |
| 1537 | if (p->max_printed < linenumber) |
| 1538 | p->max_printed = linenumber; |
| 1539 | p->last_line = linenumber; |
| 1540 | p->first = 0; |
| 1541 | } |
| 1542 | } |
| 1543 | |
| 1544 | if (functionname != NULL |
| 1545 | && (prev_functionname == NULL |
| 1546 | || strcmp (functionname, prev_functionname) != 0)) |
| 1547 | { |
| 1548 | if (prev_functionname != NULL) |
| 1549 | free (prev_functionname); |
| 1550 | prev_functionname = (char *) xmalloc (strlen (functionname) + 1); |
| 1551 | strcpy (prev_functionname, functionname); |
| 1552 | } |
| 1553 | |
| 1554 | if (linenumber > 0 && linenumber != prev_line) |
| 1555 | prev_line = linenumber; |
| 1556 | |
| 1557 | if (discriminator != prev_discriminator) |
| 1558 | prev_discriminator = discriminator; |
| 1559 | |
| 1560 | if (path) |
| 1561 | free (path); |
| 1562 | } |
| 1563 | |
| 1564 | /* Pseudo FILE object for strings. */ |
| 1565 | typedef struct |
| 1566 | { |
| 1567 | char *buffer; |
| 1568 | size_t pos; |
| 1569 | size_t alloc; |
| 1570 | } SFILE; |
| 1571 | |
| 1572 | /* sprintf to a "stream". */ |
| 1573 | |
| 1574 | static int ATTRIBUTE_PRINTF_2 |
| 1575 | objdump_sprintf (SFILE *f, const char *format, ...) |
| 1576 | { |
| 1577 | size_t n; |
| 1578 | va_list args; |
| 1579 | |
| 1580 | while (1) |
| 1581 | { |
| 1582 | size_t space = f->alloc - f->pos; |
| 1583 | |
| 1584 | va_start (args, format); |
| 1585 | n = vsnprintf (f->buffer + f->pos, space, format, args); |
| 1586 | va_end (args); |
| 1587 | |
| 1588 | if (space > n) |
| 1589 | break; |
| 1590 | |
| 1591 | f->alloc = (f->alloc + n) * 2; |
| 1592 | f->buffer = (char *) xrealloc (f->buffer, f->alloc); |
| 1593 | } |
| 1594 | f->pos += n; |
| 1595 | |
| 1596 | return n; |
| 1597 | } |
| 1598 | |
| 1599 | /* The number of zeroes we want to see before we start skipping them. |
| 1600 | The number is arbitrarily chosen. */ |
| 1601 | |
| 1602 | #define DEFAULT_SKIP_ZEROES 8 |
| 1603 | |
| 1604 | /* The number of zeroes to skip at the end of a section. If the |
| 1605 | number of zeroes at the end is between SKIP_ZEROES_AT_END and |
| 1606 | SKIP_ZEROES, they will be disassembled. If there are fewer than |
| 1607 | SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic |
| 1608 | attempt to avoid disassembling zeroes inserted by section |
| 1609 | alignment. */ |
| 1610 | |
| 1611 | #define DEFAULT_SKIP_ZEROES_AT_END 3 |
| 1612 | |
| 1613 | /* Disassemble some data in memory between given values. */ |
| 1614 | |
| 1615 | static void |
| 1616 | disassemble_bytes (struct disassemble_info * inf, |
| 1617 | disassembler_ftype disassemble_fn, |
| 1618 | bfd_boolean insns, |
| 1619 | bfd_byte * data, |
| 1620 | bfd_vma start_offset, |
| 1621 | bfd_vma stop_offset, |
| 1622 | bfd_vma rel_offset, |
| 1623 | arelent *** relppp, |
| 1624 | arelent ** relppend) |
| 1625 | { |
| 1626 | struct objdump_disasm_info *aux; |
| 1627 | asection *section; |
| 1628 | int octets_per_line; |
| 1629 | int skip_addr_chars; |
| 1630 | bfd_vma addr_offset; |
| 1631 | unsigned int opb = inf->octets_per_byte; |
| 1632 | unsigned int skip_zeroes = inf->skip_zeroes; |
| 1633 | unsigned int skip_zeroes_at_end = inf->skip_zeroes_at_end; |
| 1634 | int octets = opb; |
| 1635 | SFILE sfile; |
| 1636 | |
| 1637 | aux = (struct objdump_disasm_info *) inf->application_data; |
| 1638 | section = aux->sec; |
| 1639 | |
| 1640 | sfile.alloc = 120; |
| 1641 | sfile.buffer = (char *) xmalloc (sfile.alloc); |
| 1642 | sfile.pos = 0; |
| 1643 | |
| 1644 | if (insn_width) |
| 1645 | octets_per_line = insn_width; |
| 1646 | else if (insns) |
| 1647 | octets_per_line = 4; |
| 1648 | else |
| 1649 | octets_per_line = 16; |
| 1650 | |
| 1651 | /* Figure out how many characters to skip at the start of an |
| 1652 | address, to make the disassembly look nicer. We discard leading |
| 1653 | zeroes in chunks of 4, ensuring that there is always a leading |
| 1654 | zero remaining. */ |
| 1655 | skip_addr_chars = 0; |
| 1656 | if (! prefix_addresses) |
| 1657 | { |
| 1658 | char buf[30]; |
| 1659 | |
| 1660 | bfd_sprintf_vma (aux->abfd, buf, section->vma + section->size / opb); |
| 1661 | |
| 1662 | while (buf[skip_addr_chars] == '0') |
| 1663 | ++skip_addr_chars; |
| 1664 | |
| 1665 | /* Don't discard zeros on overflow. */ |
| 1666 | if (buf[skip_addr_chars] == '\0' && section->vma != 0) |
| 1667 | skip_addr_chars = 0; |
| 1668 | |
| 1669 | if (skip_addr_chars != 0) |
| 1670 | skip_addr_chars = (skip_addr_chars - 1) & -4; |
| 1671 | } |
| 1672 | |
| 1673 | inf->insn_info_valid = 0; |
| 1674 | |
| 1675 | addr_offset = start_offset; |
| 1676 | while (addr_offset < stop_offset) |
| 1677 | { |
| 1678 | bfd_vma z; |
| 1679 | bfd_boolean need_nl = FALSE; |
| 1680 | int previous_octets; |
| 1681 | |
| 1682 | /* Remember the length of the previous instruction. */ |
| 1683 | previous_octets = octets; |
| 1684 | octets = 0; |
| 1685 | |
| 1686 | /* Make sure we don't use relocs from previous instructions. */ |
| 1687 | aux->reloc = NULL; |
| 1688 | |
| 1689 | /* If we see more than SKIP_ZEROES octets of zeroes, we just |
| 1690 | print `...'. */ |
| 1691 | for (z = addr_offset * opb; z < stop_offset * opb; z++) |
| 1692 | if (data[z] != 0) |
| 1693 | break; |
| 1694 | if (! disassemble_zeroes |
| 1695 | && (inf->insn_info_valid == 0 |
| 1696 | || inf->branch_delay_insns == 0) |
| 1697 | && (z - addr_offset * opb >= skip_zeroes |
| 1698 | || (z == stop_offset * opb && |
| 1699 | z - addr_offset * opb < skip_zeroes_at_end))) |
| 1700 | { |
| 1701 | /* If there are more nonzero octets to follow, we only skip |
| 1702 | zeroes in multiples of 4, to try to avoid running over |
| 1703 | the start of an instruction which happens to start with |
| 1704 | zero. */ |
| 1705 | if (z != stop_offset * opb) |
| 1706 | z = addr_offset * opb + ((z - addr_offset * opb) &~ 3); |
| 1707 | |
| 1708 | octets = z - addr_offset * opb; |
| 1709 | |
| 1710 | /* If we are going to display more data, and we are displaying |
| 1711 | file offsets, then tell the user how many zeroes we skip |
| 1712 | and the file offset from where we resume dumping. */ |
| 1713 | if (display_file_offsets && ((addr_offset + (octets / opb)) < stop_offset)) |
| 1714 | printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n", |
| 1715 | octets / opb, |
| 1716 | (unsigned long) (section->filepos |
| 1717 | + (addr_offset + (octets / opb)))); |
| 1718 | else |
| 1719 | printf ("\t...\n"); |
| 1720 | } |
| 1721 | else |
| 1722 | { |
| 1723 | char buf[50]; |
| 1724 | int bpc = 0; |
| 1725 | int pb = 0; |
| 1726 | |
| 1727 | if (with_line_numbers || with_source_code) |
| 1728 | show_line (aux->abfd, section, addr_offset); |
| 1729 | |
| 1730 | if (! prefix_addresses) |
| 1731 | { |
| 1732 | char *s; |
| 1733 | |
| 1734 | bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset); |
| 1735 | for (s = buf + skip_addr_chars; *s == '0'; s++) |
| 1736 | *s = ' '; |
| 1737 | if (*s == '\0') |
| 1738 | *--s = '0'; |
| 1739 | printf ("%s:\t", buf + skip_addr_chars); |
| 1740 | } |
| 1741 | else |
| 1742 | { |
| 1743 | aux->require_sec = TRUE; |
| 1744 | objdump_print_address (section->vma + addr_offset, inf); |
| 1745 | aux->require_sec = FALSE; |
| 1746 | putchar (' '); |
| 1747 | } |
| 1748 | |
| 1749 | if (insns) |
| 1750 | { |
| 1751 | sfile.pos = 0; |
| 1752 | inf->fprintf_func = (fprintf_ftype) objdump_sprintf; |
| 1753 | inf->stream = &sfile; |
| 1754 | inf->bytes_per_line = 0; |
| 1755 | inf->bytes_per_chunk = 0; |
| 1756 | inf->flags = disassemble_all ? DISASSEMBLE_DATA : 0; |
| 1757 | if (machine) |
| 1758 | inf->flags |= USER_SPECIFIED_MACHINE_TYPE; |
| 1759 | |
| 1760 | if (inf->disassembler_needs_relocs |
| 1761 | && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0 |
| 1762 | && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0 |
| 1763 | && *relppp < relppend) |
| 1764 | { |
| 1765 | bfd_signed_vma distance_to_rel; |
| 1766 | |
| 1767 | distance_to_rel = (**relppp)->address |
| 1768 | - (rel_offset + addr_offset); |
| 1769 | |
| 1770 | /* Check to see if the current reloc is associated with |
| 1771 | the instruction that we are about to disassemble. */ |
| 1772 | if (distance_to_rel == 0 |
| 1773 | /* FIXME: This is wrong. We are trying to catch |
| 1774 | relocs that are addressed part way through the |
| 1775 | current instruction, as might happen with a packed |
| 1776 | VLIW instruction. Unfortunately we do not know the |
| 1777 | length of the current instruction since we have not |
| 1778 | disassembled it yet. Instead we take a guess based |
| 1779 | upon the length of the previous instruction. The |
| 1780 | proper solution is to have a new target-specific |
| 1781 | disassembler function which just returns the length |
| 1782 | of an instruction at a given address without trying |
| 1783 | to display its disassembly. */ |
| 1784 | || (distance_to_rel > 0 |
| 1785 | && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb))) |
| 1786 | { |
| 1787 | inf->flags |= INSN_HAS_RELOC; |
| 1788 | aux->reloc = **relppp; |
| 1789 | } |
| 1790 | } |
| 1791 | |
| 1792 | if (! disassemble_all |
| 1793 | && (section->flags & (SEC_CODE | SEC_HAS_CONTENTS)) |
| 1794 | == (SEC_CODE | SEC_HAS_CONTENTS)) |
| 1795 | /* Set a stop_vma so that the disassembler will not read |
| 1796 | beyond the next symbol. We assume that symbols appear on |
| 1797 | the boundaries between instructions. We only do this when |
| 1798 | disassembling code of course, and when -D is in effect. */ |
| 1799 | inf->stop_vma = section->vma + stop_offset; |
| 1800 | |
| 1801 | octets = (*disassemble_fn) (section->vma + addr_offset, inf); |
| 1802 | |
| 1803 | inf->stop_vma = 0; |
| 1804 | inf->fprintf_func = (fprintf_ftype) fprintf; |
| 1805 | inf->stream = stdout; |
| 1806 | if (insn_width == 0 && inf->bytes_per_line != 0) |
| 1807 | octets_per_line = inf->bytes_per_line; |
| 1808 | if (octets < (int) opb) |
| 1809 | { |
| 1810 | if (sfile.pos) |
| 1811 | printf ("%s\n", sfile.buffer); |
| 1812 | if (octets >= 0) |
| 1813 | { |
| 1814 | non_fatal (_("disassemble_fn returned length %d"), |
| 1815 | octets); |
| 1816 | exit_status = 1; |
| 1817 | } |
| 1818 | break; |
| 1819 | } |
| 1820 | } |
| 1821 | else |
| 1822 | { |
| 1823 | bfd_vma j; |
| 1824 | |
| 1825 | octets = octets_per_line; |
| 1826 | if (addr_offset + octets / opb > stop_offset) |
| 1827 | octets = (stop_offset - addr_offset) * opb; |
| 1828 | |
| 1829 | for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j) |
| 1830 | { |
| 1831 | if (ISPRINT (data[j])) |
| 1832 | buf[j - addr_offset * opb] = data[j]; |
| 1833 | else |
| 1834 | buf[j - addr_offset * opb] = '.'; |
| 1835 | } |
| 1836 | buf[j - addr_offset * opb] = '\0'; |
| 1837 | } |
| 1838 | |
| 1839 | if (prefix_addresses |
| 1840 | ? show_raw_insn > 0 |
| 1841 | : show_raw_insn >= 0) |
| 1842 | { |
| 1843 | bfd_vma j; |
| 1844 | |
| 1845 | /* If ! prefix_addresses and ! wide_output, we print |
| 1846 | octets_per_line octets per line. */ |
| 1847 | pb = octets; |
| 1848 | if (pb > octets_per_line && ! prefix_addresses && ! wide_output) |
| 1849 | pb = octets_per_line; |
| 1850 | |
| 1851 | if (inf->bytes_per_chunk) |
| 1852 | bpc = inf->bytes_per_chunk; |
| 1853 | else |
| 1854 | bpc = 1; |
| 1855 | |
| 1856 | for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc) |
| 1857 | { |
| 1858 | int k; |
| 1859 | |
| 1860 | if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE) |
| 1861 | { |
| 1862 | for (k = bpc - 1; k >= 0; k--) |
| 1863 | printf ("%02x", (unsigned) data[j + k]); |
| 1864 | putchar (' '); |
| 1865 | } |
| 1866 | else |
| 1867 | { |
| 1868 | for (k = 0; k < bpc; k++) |
| 1869 | printf ("%02x", (unsigned) data[j + k]); |
| 1870 | putchar (' '); |
| 1871 | } |
| 1872 | } |
| 1873 | |
| 1874 | for (; pb < octets_per_line; pb += bpc) |
| 1875 | { |
| 1876 | int k; |
| 1877 | |
| 1878 | for (k = 0; k < bpc; k++) |
| 1879 | printf (" "); |
| 1880 | putchar (' '); |
| 1881 | } |
| 1882 | |
| 1883 | /* Separate raw data from instruction by extra space. */ |
| 1884 | if (insns) |
| 1885 | putchar ('\t'); |
| 1886 | else |
| 1887 | printf (" "); |
| 1888 | } |
| 1889 | |
| 1890 | if (! insns) |
| 1891 | printf ("%s", buf); |
| 1892 | else if (sfile.pos) |
| 1893 | printf ("%s", sfile.buffer); |
| 1894 | |
| 1895 | if (prefix_addresses |
| 1896 | ? show_raw_insn > 0 |
| 1897 | : show_raw_insn >= 0) |
| 1898 | { |
| 1899 | while (pb < octets) |
| 1900 | { |
| 1901 | bfd_vma j; |
| 1902 | char *s; |
| 1903 | |
| 1904 | putchar ('\n'); |
| 1905 | j = addr_offset * opb + pb; |
| 1906 | |
| 1907 | bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb); |
| 1908 | for (s = buf + skip_addr_chars; *s == '0'; s++) |
| 1909 | *s = ' '; |
| 1910 | if (*s == '\0') |
| 1911 | *--s = '0'; |
| 1912 | printf ("%s:\t", buf + skip_addr_chars); |
| 1913 | |
| 1914 | pb += octets_per_line; |
| 1915 | if (pb > octets) |
| 1916 | pb = octets; |
| 1917 | for (; j < addr_offset * opb + pb; j += bpc) |
| 1918 | { |
| 1919 | int k; |
| 1920 | |
| 1921 | if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE) |
| 1922 | { |
| 1923 | for (k = bpc - 1; k >= 0; k--) |
| 1924 | printf ("%02x", (unsigned) data[j + k]); |
| 1925 | putchar (' '); |
| 1926 | } |
| 1927 | else |
| 1928 | { |
| 1929 | for (k = 0; k < bpc; k++) |
| 1930 | printf ("%02x", (unsigned) data[j + k]); |
| 1931 | putchar (' '); |
| 1932 | } |
| 1933 | } |
| 1934 | } |
| 1935 | } |
| 1936 | |
| 1937 | if (!wide_output) |
| 1938 | putchar ('\n'); |
| 1939 | else |
| 1940 | need_nl = TRUE; |
| 1941 | } |
| 1942 | |
| 1943 | while ((*relppp) < relppend |
| 1944 | && (**relppp)->address < rel_offset + addr_offset + octets / opb) |
| 1945 | { |
| 1946 | if (dump_reloc_info || dump_dynamic_reloc_info) |
| 1947 | { |
| 1948 | arelent *q; |
| 1949 | |
| 1950 | q = **relppp; |
| 1951 | |
| 1952 | if (wide_output) |
| 1953 | putchar ('\t'); |
| 1954 | else |
| 1955 | printf ("\t\t\t"); |
| 1956 | |
| 1957 | objdump_print_value (section->vma - rel_offset + q->address, |
| 1958 | inf, TRUE); |
| 1959 | |
| 1960 | if (q->howto == NULL) |
| 1961 | printf (": *unknown*\t"); |
| 1962 | else if (q->howto->name) |
| 1963 | printf (": %s\t", q->howto->name); |
| 1964 | else |
| 1965 | printf (": %d\t", q->howto->type); |
| 1966 | |
| 1967 | if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL) |
| 1968 | printf ("*unknown*"); |
| 1969 | else |
| 1970 | { |
| 1971 | const char *sym_name; |
| 1972 | |
| 1973 | sym_name = bfd_asymbol_name (*q->sym_ptr_ptr); |
| 1974 | if (sym_name != NULL && *sym_name != '\0') |
| 1975 | objdump_print_symname (aux->abfd, inf, *q->sym_ptr_ptr); |
| 1976 | else |
| 1977 | { |
| 1978 | asection *sym_sec; |
| 1979 | |
| 1980 | sym_sec = bfd_get_section (*q->sym_ptr_ptr); |
| 1981 | sym_name = bfd_get_section_name (aux->abfd, sym_sec); |
| 1982 | if (sym_name == NULL || *sym_name == '\0') |
| 1983 | sym_name = "*unknown*"; |
| 1984 | printf ("%s", sym_name); |
| 1985 | } |
| 1986 | } |
| 1987 | |
| 1988 | if (q->addend) |
| 1989 | { |
| 1990 | bfd_signed_vma addend = q->addend; |
| 1991 | if (addend < 0) |
| 1992 | { |
| 1993 | printf ("-0x"); |
| 1994 | addend = -addend; |
| 1995 | } |
| 1996 | else |
| 1997 | printf ("+0x"); |
| 1998 | objdump_print_value (addend, inf, TRUE); |
| 1999 | } |
| 2000 | |
| 2001 | printf ("\n"); |
| 2002 | need_nl = FALSE; |
| 2003 | } |
| 2004 | ++(*relppp); |
| 2005 | } |
| 2006 | |
| 2007 | if (need_nl) |
| 2008 | printf ("\n"); |
| 2009 | |
| 2010 | addr_offset += octets / opb; |
| 2011 | } |
| 2012 | |
| 2013 | free (sfile.buffer); |
| 2014 | } |
| 2015 | |
| 2016 | static void |
| 2017 | disassemble_section (bfd *abfd, asection *section, void *inf) |
| 2018 | { |
| 2019 | const struct elf_backend_data * bed; |
| 2020 | bfd_vma sign_adjust = 0; |
| 2021 | struct disassemble_info * pinfo = (struct disassemble_info *) inf; |
| 2022 | struct objdump_disasm_info * paux; |
| 2023 | unsigned int opb = pinfo->octets_per_byte; |
| 2024 | bfd_byte * data = NULL; |
| 2025 | bfd_size_type datasize = 0; |
| 2026 | arelent ** rel_pp = NULL; |
| 2027 | arelent ** rel_ppstart = NULL; |
| 2028 | arelent ** rel_ppend; |
| 2029 | bfd_vma stop_offset; |
| 2030 | asymbol * sym = NULL; |
| 2031 | long place = 0; |
| 2032 | long rel_count; |
| 2033 | bfd_vma rel_offset; |
| 2034 | unsigned long addr_offset; |
| 2035 | |
| 2036 | /* Sections that do not contain machine |
| 2037 | code are not normally disassembled. */ |
| 2038 | if (! disassemble_all |
| 2039 | && only_list == NULL |
| 2040 | && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS)) |
| 2041 | != (SEC_CODE | SEC_HAS_CONTENTS))) |
| 2042 | return; |
| 2043 | |
| 2044 | if (! process_section_p (section)) |
| 2045 | return; |
| 2046 | |
| 2047 | datasize = bfd_get_section_size (section); |
| 2048 | if (datasize == 0) |
| 2049 | return; |
| 2050 | |
| 2051 | if (start_address == (bfd_vma) -1 |
| 2052 | || start_address < section->vma) |
| 2053 | addr_offset = 0; |
| 2054 | else |
| 2055 | addr_offset = start_address - section->vma; |
| 2056 | |
| 2057 | if (stop_address == (bfd_vma) -1) |
| 2058 | stop_offset = datasize / opb; |
| 2059 | else |
| 2060 | { |
| 2061 | if (stop_address < section->vma) |
| 2062 | stop_offset = 0; |
| 2063 | else |
| 2064 | stop_offset = stop_address - section->vma; |
| 2065 | if (stop_offset > datasize / opb) |
| 2066 | stop_offset = datasize / opb; |
| 2067 | } |
| 2068 | |
| 2069 | if (addr_offset >= stop_offset) |
| 2070 | return; |
| 2071 | |
| 2072 | /* Decide which set of relocs to use. Load them if necessary. */ |
| 2073 | paux = (struct objdump_disasm_info *) pinfo->application_data; |
| 2074 | if (paux->dynrelbuf && dump_dynamic_reloc_info) |
| 2075 | { |
| 2076 | rel_pp = paux->dynrelbuf; |
| 2077 | rel_count = paux->dynrelcount; |
| 2078 | /* Dynamic reloc addresses are absolute, non-dynamic are section |
| 2079 | relative. REL_OFFSET specifies the reloc address corresponding |
| 2080 | to the start of this section. */ |
| 2081 | rel_offset = section->vma; |
| 2082 | } |
| 2083 | else |
| 2084 | { |
| 2085 | rel_count = 0; |
| 2086 | rel_pp = NULL; |
| 2087 | rel_offset = 0; |
| 2088 | |
| 2089 | if ((section->flags & SEC_RELOC) != 0 |
| 2090 | && (dump_reloc_info || pinfo->disassembler_needs_relocs)) |
| 2091 | { |
| 2092 | long relsize; |
| 2093 | |
| 2094 | relsize = bfd_get_reloc_upper_bound (abfd, section); |
| 2095 | if (relsize < 0) |
| 2096 | bfd_fatal (bfd_get_filename (abfd)); |
| 2097 | |
| 2098 | if (relsize > 0) |
| 2099 | { |
| 2100 | rel_ppstart = rel_pp = (arelent **) xmalloc (relsize); |
| 2101 | rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms); |
| 2102 | if (rel_count < 0) |
| 2103 | bfd_fatal (bfd_get_filename (abfd)); |
| 2104 | |
| 2105 | /* Sort the relocs by address. */ |
| 2106 | qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs); |
| 2107 | } |
| 2108 | } |
| 2109 | } |
| 2110 | rel_ppend = rel_pp + rel_count; |
| 2111 | |
| 2112 | data = (bfd_byte *) xmalloc (datasize); |
| 2113 | |
| 2114 | bfd_get_section_contents (abfd, section, data, 0, datasize); |
| 2115 | |
| 2116 | paux->sec = section; |
| 2117 | pinfo->buffer = data; |
| 2118 | pinfo->buffer_vma = section->vma; |
| 2119 | pinfo->buffer_length = datasize; |
| 2120 | pinfo->section = section; |
| 2121 | |
| 2122 | /* Skip over the relocs belonging to addresses below the |
| 2123 | start address. */ |
| 2124 | while (rel_pp < rel_ppend |
| 2125 | && (*rel_pp)->address < rel_offset + addr_offset) |
| 2126 | ++rel_pp; |
| 2127 | |
| 2128 | printf (_("\nDisassembly of section %s:\n"), section->name); |
| 2129 | |
| 2130 | /* Find the nearest symbol forwards from our current position. */ |
| 2131 | paux->require_sec = TRUE; |
| 2132 | sym = (asymbol *) find_symbol_for_address (section->vma + addr_offset, |
| 2133 | (struct disassemble_info *) inf, |
| 2134 | &place); |
| 2135 | paux->require_sec = FALSE; |
| 2136 | |
| 2137 | /* PR 9774: If the target used signed addresses then we must make |
| 2138 | sure that we sign extend the value that we calculate for 'addr' |
| 2139 | in the loop below. */ |
| 2140 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour |
| 2141 | && (bed = get_elf_backend_data (abfd)) != NULL |
| 2142 | && bed->sign_extend_vma) |
| 2143 | sign_adjust = (bfd_vma) 1 << (bed->s->arch_size - 1); |
| 2144 | |
| 2145 | /* Disassemble a block of instructions up to the address associated with |
| 2146 | the symbol we have just found. Then print the symbol and find the |
| 2147 | next symbol on. Repeat until we have disassembled the entire section |
| 2148 | or we have reached the end of the address range we are interested in. */ |
| 2149 | while (addr_offset < stop_offset) |
| 2150 | { |
| 2151 | bfd_vma addr; |
| 2152 | asymbol *nextsym; |
| 2153 | bfd_vma nextstop_offset; |
| 2154 | bfd_boolean insns; |
| 2155 | |
| 2156 | addr = section->vma + addr_offset; |
| 2157 | addr = ((addr & ((sign_adjust << 1) - 1)) ^ sign_adjust) - sign_adjust; |
| 2158 | |
| 2159 | if (sym != NULL && bfd_asymbol_value (sym) <= addr) |
| 2160 | { |
| 2161 | int x; |
| 2162 | |
| 2163 | for (x = place; |
| 2164 | (x < sorted_symcount |
| 2165 | && (bfd_asymbol_value (sorted_syms[x]) <= addr)); |
| 2166 | ++x) |
| 2167 | continue; |
| 2168 | |
| 2169 | pinfo->symbols = sorted_syms + place; |
| 2170 | pinfo->num_symbols = x - place; |
| 2171 | pinfo->symtab_pos = place; |
| 2172 | } |
| 2173 | else |
| 2174 | { |
| 2175 | pinfo->symbols = NULL; |
| 2176 | pinfo->num_symbols = 0; |
| 2177 | pinfo->symtab_pos = -1; |
| 2178 | } |
| 2179 | |
| 2180 | if (! prefix_addresses) |
| 2181 | { |
| 2182 | pinfo->fprintf_func (pinfo->stream, "\n"); |
| 2183 | objdump_print_addr_with_sym (abfd, section, sym, addr, |
| 2184 | pinfo, FALSE); |
| 2185 | pinfo->fprintf_func (pinfo->stream, ":\n"); |
| 2186 | } |
| 2187 | |
| 2188 | if (sym != NULL && bfd_asymbol_value (sym) > addr) |
| 2189 | nextsym = sym; |
| 2190 | else if (sym == NULL) |
| 2191 | nextsym = NULL; |
| 2192 | else |
| 2193 | { |
| 2194 | #define is_valid_next_sym(SYM) \ |
| 2195 | ((SYM)->section == section \ |
| 2196 | && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \ |
| 2197 | && pinfo->symbol_is_valid (SYM, pinfo)) |
| 2198 | |
| 2199 | /* Search forward for the next appropriate symbol in |
| 2200 | SECTION. Note that all the symbols are sorted |
| 2201 | together into one big array, and that some sections |
| 2202 | may have overlapping addresses. */ |
| 2203 | while (place < sorted_symcount |
| 2204 | && ! is_valid_next_sym (sorted_syms [place])) |
| 2205 | ++place; |
| 2206 | |
| 2207 | if (place >= sorted_symcount) |
| 2208 | nextsym = NULL; |
| 2209 | else |
| 2210 | nextsym = sorted_syms[place]; |
| 2211 | } |
| 2212 | |
| 2213 | if (sym != NULL && bfd_asymbol_value (sym) > addr) |
| 2214 | nextstop_offset = bfd_asymbol_value (sym) - section->vma; |
| 2215 | else if (nextsym == NULL) |
| 2216 | nextstop_offset = stop_offset; |
| 2217 | else |
| 2218 | nextstop_offset = bfd_asymbol_value (nextsym) - section->vma; |
| 2219 | |
| 2220 | if (nextstop_offset > stop_offset |
| 2221 | || nextstop_offset <= addr_offset) |
| 2222 | nextstop_offset = stop_offset; |
| 2223 | |
| 2224 | /* If a symbol is explicitly marked as being an object |
| 2225 | rather than a function, just dump the bytes without |
| 2226 | disassembling them. */ |
| 2227 | if (disassemble_all |
| 2228 | || sym == NULL |
| 2229 | || sym->section != section |
| 2230 | || bfd_asymbol_value (sym) > addr |
| 2231 | || ((sym->flags & BSF_OBJECT) == 0 |
| 2232 | && (strstr (bfd_asymbol_name (sym), "gnu_compiled") |
| 2233 | == NULL) |
| 2234 | && (strstr (bfd_asymbol_name (sym), "gcc2_compiled") |
| 2235 | == NULL)) |
| 2236 | || (sym->flags & BSF_FUNCTION) != 0) |
| 2237 | insns = TRUE; |
| 2238 | else |
| 2239 | insns = FALSE; |
| 2240 | |
| 2241 | disassemble_bytes (pinfo, paux->disassemble_fn, insns, data, |
| 2242 | addr_offset, nextstop_offset, |
| 2243 | rel_offset, &rel_pp, rel_ppend); |
| 2244 | |
| 2245 | addr_offset = nextstop_offset; |
| 2246 | sym = nextsym; |
| 2247 | } |
| 2248 | |
| 2249 | free (data); |
| 2250 | |
| 2251 | if (rel_ppstart != NULL) |
| 2252 | free (rel_ppstart); |
| 2253 | } |
| 2254 | |
| 2255 | /* Disassemble the contents of an object file. */ |
| 2256 | |
| 2257 | static void |
| 2258 | disassemble_data (bfd *abfd) |
| 2259 | { |
| 2260 | struct disassemble_info disasm_info; |
| 2261 | struct objdump_disasm_info aux; |
| 2262 | long i; |
| 2263 | |
| 2264 | print_files = NULL; |
| 2265 | prev_functionname = NULL; |
| 2266 | prev_line = -1; |
| 2267 | prev_discriminator = 0; |
| 2268 | |
| 2269 | /* We make a copy of syms to sort. We don't want to sort syms |
| 2270 | because that will screw up the relocs. */ |
| 2271 | sorted_symcount = symcount ? symcount : dynsymcount; |
| 2272 | sorted_syms = (asymbol **) xmalloc ((sorted_symcount + synthcount) |
| 2273 | * sizeof (asymbol *)); |
| 2274 | memcpy (sorted_syms, symcount ? syms : dynsyms, |
| 2275 | sorted_symcount * sizeof (asymbol *)); |
| 2276 | |
| 2277 | sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount); |
| 2278 | |
| 2279 | for (i = 0; i < synthcount; ++i) |
| 2280 | { |
| 2281 | sorted_syms[sorted_symcount] = synthsyms + i; |
| 2282 | ++sorted_symcount; |
| 2283 | } |
| 2284 | |
| 2285 | /* Sort the symbols into section and symbol order. */ |
| 2286 | qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols); |
| 2287 | |
| 2288 | init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf); |
| 2289 | |
| 2290 | disasm_info.application_data = (void *) &aux; |
| 2291 | aux.abfd = abfd; |
| 2292 | aux.require_sec = FALSE; |
| 2293 | aux.dynrelbuf = NULL; |
| 2294 | aux.dynrelcount = 0; |
| 2295 | aux.reloc = NULL; |
| 2296 | |
| 2297 | disasm_info.print_address_func = objdump_print_address; |
| 2298 | disasm_info.symbol_at_address_func = objdump_symbol_at_address; |
| 2299 | |
| 2300 | if (machine != NULL) |
| 2301 | { |
| 2302 | const bfd_arch_info_type *inf = bfd_scan_arch (machine); |
| 2303 | |
| 2304 | if (inf == NULL) |
| 2305 | fatal (_("can't use supplied machine %s"), machine); |
| 2306 | |
| 2307 | abfd->arch_info = inf; |
| 2308 | } |
| 2309 | |
| 2310 | if (endian != BFD_ENDIAN_UNKNOWN) |
| 2311 | { |
| 2312 | struct bfd_target *xvec; |
| 2313 | |
| 2314 | xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target)); |
| 2315 | memcpy (xvec, abfd->xvec, sizeof (struct bfd_target)); |
| 2316 | xvec->byteorder = endian; |
| 2317 | abfd->xvec = xvec; |
| 2318 | } |
| 2319 | |
| 2320 | /* Use libopcodes to locate a suitable disassembler. */ |
| 2321 | aux.disassemble_fn = disassembler (abfd); |
| 2322 | if (!aux.disassemble_fn) |
| 2323 | { |
| 2324 | non_fatal (_("can't disassemble for architecture %s\n"), |
| 2325 | bfd_printable_arch_mach (bfd_get_arch (abfd), 0)); |
| 2326 | exit_status = 1; |
| 2327 | return; |
| 2328 | } |
| 2329 | |
| 2330 | disasm_info.flavour = bfd_get_flavour (abfd); |
| 2331 | disasm_info.arch = bfd_get_arch (abfd); |
| 2332 | disasm_info.mach = bfd_get_mach (abfd); |
| 2333 | disasm_info.disassembler_options = disassembler_options; |
| 2334 | disasm_info.octets_per_byte = bfd_octets_per_byte (abfd); |
| 2335 | disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES; |
| 2336 | disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END; |
| 2337 | disasm_info.disassembler_needs_relocs = FALSE; |
| 2338 | |
| 2339 | if (bfd_big_endian (abfd)) |
| 2340 | disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG; |
| 2341 | else if (bfd_little_endian (abfd)) |
| 2342 | disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE; |
| 2343 | else |
| 2344 | /* ??? Aborting here seems too drastic. We could default to big or little |
| 2345 | instead. */ |
| 2346 | disasm_info.endian = BFD_ENDIAN_UNKNOWN; |
| 2347 | |
| 2348 | /* Allow the target to customize the info structure. */ |
| 2349 | disassemble_init_for_target (& disasm_info); |
| 2350 | |
| 2351 | /* Pre-load the dynamic relocs as we may need them during the disassembly. */ |
| 2352 | { |
| 2353 | long relsize = bfd_get_dynamic_reloc_upper_bound (abfd); |
| 2354 | |
| 2355 | if (relsize < 0 && dump_dynamic_reloc_info) |
| 2356 | bfd_fatal (bfd_get_filename (abfd)); |
| 2357 | |
| 2358 | if (relsize > 0) |
| 2359 | { |
| 2360 | aux.dynrelbuf = (arelent **) xmalloc (relsize); |
| 2361 | aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd, |
| 2362 | aux.dynrelbuf, |
| 2363 | dynsyms); |
| 2364 | if (aux.dynrelcount < 0) |
| 2365 | bfd_fatal (bfd_get_filename (abfd)); |
| 2366 | |
| 2367 | /* Sort the relocs by address. */ |
| 2368 | qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *), |
| 2369 | compare_relocs); |
| 2370 | } |
| 2371 | } |
| 2372 | disasm_info.symtab = sorted_syms; |
| 2373 | disasm_info.symtab_size = sorted_symcount; |
| 2374 | |
| 2375 | bfd_map_over_sections (abfd, disassemble_section, & disasm_info); |
| 2376 | |
| 2377 | if (aux.dynrelbuf != NULL) |
| 2378 | free (aux.dynrelbuf); |
| 2379 | free (sorted_syms); |
| 2380 | } |
| 2381 | \f |
| 2382 | static int |
| 2383 | load_specific_debug_section (enum dwarf_section_display_enum debug, |
| 2384 | asection *sec, void *file) |
| 2385 | { |
| 2386 | struct dwarf_section *section = &debug_displays [debug].section; |
| 2387 | bfd *abfd = (bfd *) file; |
| 2388 | bfd_boolean ret; |
| 2389 | |
| 2390 | /* If it is already loaded, do nothing. */ |
| 2391 | if (section->start != NULL) |
| 2392 | return 1; |
| 2393 | |
| 2394 | section->reloc_info = NULL; |
| 2395 | section->num_relocs = 0; |
| 2396 | section->address = bfd_get_section_vma (abfd, sec); |
| 2397 | section->size = bfd_get_section_size (sec); |
| 2398 | section->start = NULL; |
| 2399 | section->user_data = sec; |
| 2400 | ret = bfd_get_full_section_contents (abfd, sec, §ion->start); |
| 2401 | |
| 2402 | if (! ret) |
| 2403 | { |
| 2404 | free_debug_section (debug); |
| 2405 | printf (_("\nCan't get contents for section '%s'.\n"), |
| 2406 | section->name); |
| 2407 | return 0; |
| 2408 | } |
| 2409 | |
| 2410 | if (is_relocatable && debug_displays [debug].relocate) |
| 2411 | { |
| 2412 | bfd_cache_section_contents (sec, section->start); |
| 2413 | |
| 2414 | ret = bfd_simple_get_relocated_section_contents (abfd, |
| 2415 | sec, |
| 2416 | section->start, |
| 2417 | syms) != NULL; |
| 2418 | |
| 2419 | if (! ret) |
| 2420 | { |
| 2421 | free_debug_section (debug); |
| 2422 | printf (_("\nCan't get contents for section '%s'.\n"), |
| 2423 | section->name); |
| 2424 | return 0; |
| 2425 | } |
| 2426 | |
| 2427 | long reloc_size; |
| 2428 | |
| 2429 | reloc_size = bfd_get_reloc_upper_bound (abfd, sec); |
| 2430 | if (reloc_size > 0) |
| 2431 | { |
| 2432 | unsigned long reloc_count; |
| 2433 | arelent **relocs; |
| 2434 | |
| 2435 | relocs = (arelent **) xmalloc (reloc_size); |
| 2436 | |
| 2437 | reloc_count = bfd_canonicalize_reloc (abfd, sec, relocs, NULL); |
| 2438 | if (reloc_count == 0) |
| 2439 | free (relocs); |
| 2440 | else |
| 2441 | { |
| 2442 | section->reloc_info = relocs; |
| 2443 | section->num_relocs = reloc_count; |
| 2444 | } |
| 2445 | } |
| 2446 | } |
| 2447 | |
| 2448 | return 1; |
| 2449 | } |
| 2450 | |
| 2451 | bfd_boolean |
| 2452 | reloc_at (struct dwarf_section * dsec, dwarf_vma offset) |
| 2453 | { |
| 2454 | arelent ** relocs; |
| 2455 | arelent * rp; |
| 2456 | |
| 2457 | if (dsec == NULL || dsec->reloc_info == NULL) |
| 2458 | return FALSE; |
| 2459 | |
| 2460 | relocs = (arelent **) dsec->reloc_info; |
| 2461 | |
| 2462 | for (; (rp = * relocs) != NULL; ++ relocs) |
| 2463 | if (rp->address == offset) |
| 2464 | return TRUE; |
| 2465 | |
| 2466 | return FALSE; |
| 2467 | } |
| 2468 | |
| 2469 | int |
| 2470 | load_debug_section (enum dwarf_section_display_enum debug, void *file) |
| 2471 | { |
| 2472 | struct dwarf_section *section = &debug_displays [debug].section; |
| 2473 | bfd *abfd = (bfd *) file; |
| 2474 | asection *sec; |
| 2475 | |
| 2476 | /* If it is already loaded, do nothing. */ |
| 2477 | if (section->start != NULL) |
| 2478 | return 1; |
| 2479 | |
| 2480 | /* Locate the debug section. */ |
| 2481 | sec = bfd_get_section_by_name (abfd, section->uncompressed_name); |
| 2482 | if (sec != NULL) |
| 2483 | section->name = section->uncompressed_name; |
| 2484 | else |
| 2485 | { |
| 2486 | sec = bfd_get_section_by_name (abfd, section->compressed_name); |
| 2487 | if (sec != NULL) |
| 2488 | section->name = section->compressed_name; |
| 2489 | } |
| 2490 | if (sec == NULL) |
| 2491 | return 0; |
| 2492 | |
| 2493 | return load_specific_debug_section (debug, sec, file); |
| 2494 | } |
| 2495 | |
| 2496 | void |
| 2497 | free_debug_section (enum dwarf_section_display_enum debug) |
| 2498 | { |
| 2499 | struct dwarf_section *section = &debug_displays [debug].section; |
| 2500 | |
| 2501 | if (section->start == NULL) |
| 2502 | return; |
| 2503 | |
| 2504 | /* PR 17512: file: 0f67f69d. */ |
| 2505 | if (section->user_data != NULL) |
| 2506 | { |
| 2507 | asection * sec = (asection *) section->user_data; |
| 2508 | |
| 2509 | /* If we are freeing contents that are also pointed to by the BFD |
| 2510 | library's section structure then make sure to update those pointers |
| 2511 | too. Otherwise, the next time we try to load data for this section |
| 2512 | we can end up using a stale pointer. */ |
| 2513 | if (section->start == sec->contents) |
| 2514 | { |
| 2515 | sec->contents = NULL; |
| 2516 | sec->flags &= ~ SEC_IN_MEMORY; |
| 2517 | sec->compress_status = COMPRESS_SECTION_NONE; |
| 2518 | } |
| 2519 | } |
| 2520 | |
| 2521 | free ((char *) section->start); |
| 2522 | section->start = NULL; |
| 2523 | section->address = 0; |
| 2524 | section->size = 0; |
| 2525 | } |
| 2526 | |
| 2527 | static void |
| 2528 | dump_dwarf_section (bfd *abfd, asection *section, |
| 2529 | void *arg ATTRIBUTE_UNUSED) |
| 2530 | { |
| 2531 | const char *name = bfd_get_section_name (abfd, section); |
| 2532 | const char *match; |
| 2533 | int i; |
| 2534 | |
| 2535 | if (CONST_STRNEQ (name, ".gnu.linkonce.wi.")) |
| 2536 | match = ".debug_info"; |
| 2537 | else |
| 2538 | match = name; |
| 2539 | |
| 2540 | for (i = 0; i < max; i++) |
| 2541 | if ((strcmp (debug_displays [i].section.uncompressed_name, match) == 0 |
| 2542 | || strcmp (debug_displays [i].section.compressed_name, match) == 0) |
| 2543 | && debug_displays [i].enabled != NULL |
| 2544 | && *debug_displays [i].enabled) |
| 2545 | { |
| 2546 | struct dwarf_section *sec = &debug_displays [i].section; |
| 2547 | |
| 2548 | if (strcmp (sec->uncompressed_name, match) == 0) |
| 2549 | sec->name = sec->uncompressed_name; |
| 2550 | else |
| 2551 | sec->name = sec->compressed_name; |
| 2552 | if (load_specific_debug_section ((enum dwarf_section_display_enum) i, |
| 2553 | section, abfd)) |
| 2554 | { |
| 2555 | debug_displays [i].display (sec, abfd); |
| 2556 | |
| 2557 | if (i != info && i != abbrev) |
| 2558 | free_debug_section ((enum dwarf_section_display_enum) i); |
| 2559 | } |
| 2560 | break; |
| 2561 | } |
| 2562 | } |
| 2563 | |
| 2564 | /* Dump the dwarf debugging information. */ |
| 2565 | |
| 2566 | static void |
| 2567 | dump_dwarf (bfd *abfd) |
| 2568 | { |
| 2569 | is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| 2570 | |
| 2571 | eh_addr_size = bfd_arch_bits_per_address (abfd) / 8; |
| 2572 | |
| 2573 | if (bfd_big_endian (abfd)) |
| 2574 | byte_get = byte_get_big_endian; |
| 2575 | else if (bfd_little_endian (abfd)) |
| 2576 | byte_get = byte_get_little_endian; |
| 2577 | else |
| 2578 | /* PR 17512: file: objdump-s-endless-loop.tekhex. */ |
| 2579 | { |
| 2580 | warn (_("File %s does not contain any dwarf debug information\n"), |
| 2581 | bfd_get_filename (abfd)); |
| 2582 | return; |
| 2583 | } |
| 2584 | |
| 2585 | switch (bfd_get_arch (abfd)) |
| 2586 | { |
| 2587 | case bfd_arch_i386: |
| 2588 | switch (bfd_get_mach (abfd)) |
| 2589 | { |
| 2590 | case bfd_mach_x86_64: |
| 2591 | case bfd_mach_x86_64_intel_syntax: |
| 2592 | case bfd_mach_x86_64_nacl: |
| 2593 | case bfd_mach_x64_32: |
| 2594 | case bfd_mach_x64_32_intel_syntax: |
| 2595 | case bfd_mach_x64_32_nacl: |
| 2596 | init_dwarf_regnames_x86_64 (); |
| 2597 | break; |
| 2598 | |
| 2599 | default: |
| 2600 | init_dwarf_regnames_i386 (); |
| 2601 | break; |
| 2602 | } |
| 2603 | break; |
| 2604 | |
| 2605 | case bfd_arch_iamcu: |
| 2606 | init_dwarf_regnames_iamcu (); |
| 2607 | break; |
| 2608 | |
| 2609 | case bfd_arch_aarch64: |
| 2610 | init_dwarf_regnames_aarch64(); |
| 2611 | break; |
| 2612 | |
| 2613 | case bfd_arch_s390: |
| 2614 | init_dwarf_regnames_s390 (); |
| 2615 | break; |
| 2616 | |
| 2617 | default: |
| 2618 | break; |
| 2619 | } |
| 2620 | |
| 2621 | bfd_map_over_sections (abfd, dump_dwarf_section, NULL); |
| 2622 | |
| 2623 | free_debug_memory (); |
| 2624 | } |
| 2625 | \f |
| 2626 | /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to |
| 2627 | it. Return NULL on failure. */ |
| 2628 | |
| 2629 | static char * |
| 2630 | read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr) |
| 2631 | { |
| 2632 | asection *stabsect; |
| 2633 | bfd_size_type size; |
| 2634 | char *contents; |
| 2635 | |
| 2636 | stabsect = bfd_get_section_by_name (abfd, sect_name); |
| 2637 | if (stabsect == NULL) |
| 2638 | { |
| 2639 | printf (_("No %s section present\n\n"), sect_name); |
| 2640 | return FALSE; |
| 2641 | } |
| 2642 | |
| 2643 | size = bfd_section_size (abfd, stabsect); |
| 2644 | contents = (char *) xmalloc (size); |
| 2645 | |
| 2646 | if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size)) |
| 2647 | { |
| 2648 | non_fatal (_("reading %s section of %s failed: %s"), |
| 2649 | sect_name, bfd_get_filename (abfd), |
| 2650 | bfd_errmsg (bfd_get_error ())); |
| 2651 | exit_status = 1; |
| 2652 | free (contents); |
| 2653 | return NULL; |
| 2654 | } |
| 2655 | |
| 2656 | *size_ptr = size; |
| 2657 | |
| 2658 | return contents; |
| 2659 | } |
| 2660 | |
| 2661 | /* Stabs entries use a 12 byte format: |
| 2662 | 4 byte string table index |
| 2663 | 1 byte stab type |
| 2664 | 1 byte stab other field |
| 2665 | 2 byte stab desc field |
| 2666 | 4 byte stab value |
| 2667 | FIXME: This will have to change for a 64 bit object format. */ |
| 2668 | |
| 2669 | #define STRDXOFF (0) |
| 2670 | #define TYPEOFF (4) |
| 2671 | #define OTHEROFF (5) |
| 2672 | #define DESCOFF (6) |
| 2673 | #define VALOFF (8) |
| 2674 | #define STABSIZE (12) |
| 2675 | |
| 2676 | /* Print ABFD's stabs section STABSECT_NAME (in `stabs'), |
| 2677 | using string table section STRSECT_NAME (in `strtab'). */ |
| 2678 | |
| 2679 | static void |
| 2680 | print_section_stabs (bfd *abfd, |
| 2681 | const char *stabsect_name, |
| 2682 | unsigned *string_offset_ptr) |
| 2683 | { |
| 2684 | int i; |
| 2685 | unsigned file_string_table_offset = 0; |
| 2686 | unsigned next_file_string_table_offset = *string_offset_ptr; |
| 2687 | bfd_byte *stabp, *stabs_end; |
| 2688 | |
| 2689 | stabp = stabs; |
| 2690 | stabs_end = stabp + stab_size; |
| 2691 | |
| 2692 | printf (_("Contents of %s section:\n\n"), stabsect_name); |
| 2693 | printf ("Symnum n_type n_othr n_desc n_value n_strx String\n"); |
| 2694 | |
| 2695 | /* Loop through all symbols and print them. |
| 2696 | |
| 2697 | We start the index at -1 because there is a dummy symbol on |
| 2698 | the front of stabs-in-{coff,elf} sections that supplies sizes. */ |
| 2699 | for (i = -1; stabp <= stabs_end - STABSIZE; stabp += STABSIZE, i++) |
| 2700 | { |
| 2701 | const char *name; |
| 2702 | unsigned long strx; |
| 2703 | unsigned char type, other; |
| 2704 | unsigned short desc; |
| 2705 | bfd_vma value; |
| 2706 | |
| 2707 | strx = bfd_h_get_32 (abfd, stabp + STRDXOFF); |
| 2708 | type = bfd_h_get_8 (abfd, stabp + TYPEOFF); |
| 2709 | other = bfd_h_get_8 (abfd, stabp + OTHEROFF); |
| 2710 | desc = bfd_h_get_16 (abfd, stabp + DESCOFF); |
| 2711 | value = bfd_h_get_32 (abfd, stabp + VALOFF); |
| 2712 | |
| 2713 | printf ("\n%-6d ", i); |
| 2714 | /* Either print the stab name, or, if unnamed, print its number |
| 2715 | again (makes consistent formatting for tools like awk). */ |
| 2716 | name = bfd_get_stab_name (type); |
| 2717 | if (name != NULL) |
| 2718 | printf ("%-6s", name); |
| 2719 | else if (type == N_UNDF) |
| 2720 | printf ("HdrSym"); |
| 2721 | else |
| 2722 | printf ("%-6d", type); |
| 2723 | printf (" %-6d %-6d ", other, desc); |
| 2724 | bfd_printf_vma (abfd, value); |
| 2725 | printf (" %-6lu", strx); |
| 2726 | |
| 2727 | /* Symbols with type == 0 (N_UNDF) specify the length of the |
| 2728 | string table associated with this file. We use that info |
| 2729 | to know how to relocate the *next* file's string table indices. */ |
| 2730 | if (type == N_UNDF) |
| 2731 | { |
| 2732 | file_string_table_offset = next_file_string_table_offset; |
| 2733 | next_file_string_table_offset += value; |
| 2734 | } |
| 2735 | else |
| 2736 | { |
| 2737 | bfd_size_type amt = strx + file_string_table_offset; |
| 2738 | |
| 2739 | /* Using the (possibly updated) string table offset, print the |
| 2740 | string (if any) associated with this symbol. */ |
| 2741 | if (amt < stabstr_size) |
| 2742 | /* PR 17512: file: 079-79389-0.001:0.1. */ |
| 2743 | printf (" %.*s", (int)(stabstr_size - amt), strtab + amt); |
| 2744 | else |
| 2745 | printf (" *"); |
| 2746 | } |
| 2747 | } |
| 2748 | printf ("\n\n"); |
| 2749 | *string_offset_ptr = next_file_string_table_offset; |
| 2750 | } |
| 2751 | |
| 2752 | typedef struct |
| 2753 | { |
| 2754 | const char * section_name; |
| 2755 | const char * string_section_name; |
| 2756 | unsigned string_offset; |
| 2757 | } |
| 2758 | stab_section_names; |
| 2759 | |
| 2760 | static void |
| 2761 | find_stabs_section (bfd *abfd, asection *section, void *names) |
| 2762 | { |
| 2763 | int len; |
| 2764 | stab_section_names * sought = (stab_section_names *) names; |
| 2765 | |
| 2766 | /* Check for section names for which stabsect_name is a prefix, to |
| 2767 | handle .stab.N, etc. */ |
| 2768 | len = strlen (sought->section_name); |
| 2769 | |
| 2770 | /* If the prefix matches, and the files section name ends with a |
| 2771 | nul or a digit, then we match. I.e., we want either an exact |
| 2772 | match or a section followed by a number. */ |
| 2773 | if (strncmp (sought->section_name, section->name, len) == 0 |
| 2774 | && (section->name[len] == 0 |
| 2775 | || (section->name[len] == '.' && ISDIGIT (section->name[len + 1])))) |
| 2776 | { |
| 2777 | if (strtab == NULL) |
| 2778 | strtab = read_section_stabs (abfd, sought->string_section_name, |
| 2779 | &stabstr_size); |
| 2780 | |
| 2781 | if (strtab) |
| 2782 | { |
| 2783 | stabs = (bfd_byte *) read_section_stabs (abfd, section->name, |
| 2784 | &stab_size); |
| 2785 | if (stabs) |
| 2786 | print_section_stabs (abfd, section->name, &sought->string_offset); |
| 2787 | } |
| 2788 | } |
| 2789 | } |
| 2790 | |
| 2791 | static void |
| 2792 | dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name) |
| 2793 | { |
| 2794 | stab_section_names s; |
| 2795 | |
| 2796 | s.section_name = stabsect_name; |
| 2797 | s.string_section_name = strsect_name; |
| 2798 | s.string_offset = 0; |
| 2799 | |
| 2800 | bfd_map_over_sections (abfd, find_stabs_section, & s); |
| 2801 | |
| 2802 | free (strtab); |
| 2803 | strtab = NULL; |
| 2804 | } |
| 2805 | |
| 2806 | /* Dump the any sections containing stabs debugging information. */ |
| 2807 | |
| 2808 | static void |
| 2809 | dump_stabs (bfd *abfd) |
| 2810 | { |
| 2811 | dump_stabs_section (abfd, ".stab", ".stabstr"); |
| 2812 | dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr"); |
| 2813 | dump_stabs_section (abfd, ".stab.index", ".stab.indexstr"); |
| 2814 | |
| 2815 | /* For Darwin. */ |
| 2816 | dump_stabs_section (abfd, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr"); |
| 2817 | |
| 2818 | dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$"); |
| 2819 | } |
| 2820 | \f |
| 2821 | static void |
| 2822 | dump_bfd_header (bfd *abfd) |
| 2823 | { |
| 2824 | char *comma = ""; |
| 2825 | |
| 2826 | printf (_("architecture: %s, "), |
| 2827 | bfd_printable_arch_mach (bfd_get_arch (abfd), |
| 2828 | bfd_get_mach (abfd))); |
| 2829 | printf (_("flags 0x%08x:\n"), abfd->flags & ~BFD_FLAGS_FOR_BFD_USE_MASK); |
| 2830 | |
| 2831 | #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";} |
| 2832 | PF (HAS_RELOC, "HAS_RELOC"); |
| 2833 | PF (EXEC_P, "EXEC_P"); |
| 2834 | PF (HAS_LINENO, "HAS_LINENO"); |
| 2835 | PF (HAS_DEBUG, "HAS_DEBUG"); |
| 2836 | PF (HAS_SYMS, "HAS_SYMS"); |
| 2837 | PF (HAS_LOCALS, "HAS_LOCALS"); |
| 2838 | PF (DYNAMIC, "DYNAMIC"); |
| 2839 | PF (WP_TEXT, "WP_TEXT"); |
| 2840 | PF (D_PAGED, "D_PAGED"); |
| 2841 | PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE"); |
| 2842 | printf (_("\nstart address 0x")); |
| 2843 | bfd_printf_vma (abfd, abfd->start_address); |
| 2844 | printf ("\n"); |
| 2845 | } |
| 2846 | |
| 2847 | \f |
| 2848 | static void |
| 2849 | dump_bfd_private_header (bfd *abfd) |
| 2850 | { |
| 2851 | bfd_print_private_bfd_data (abfd, stdout); |
| 2852 | } |
| 2853 | |
| 2854 | static void |
| 2855 | dump_target_specific (bfd *abfd) |
| 2856 | { |
| 2857 | const struct objdump_private_desc * const *desc; |
| 2858 | struct objdump_private_option *opt; |
| 2859 | char *e, *b; |
| 2860 | |
| 2861 | /* Find the desc. */ |
| 2862 | for (desc = objdump_private_vectors; *desc != NULL; desc++) |
| 2863 | if ((*desc)->filter (abfd)) |
| 2864 | break; |
| 2865 | |
| 2866 | if (*desc == NULL) |
| 2867 | { |
| 2868 | non_fatal (_("option -P/--private not supported by this file")); |
| 2869 | return; |
| 2870 | } |
| 2871 | |
| 2872 | /* Clear all options. */ |
| 2873 | for (opt = (*desc)->options; opt->name; opt++) |
| 2874 | opt->selected = FALSE; |
| 2875 | |
| 2876 | /* Decode options. */ |
| 2877 | b = dump_private_options; |
| 2878 | do |
| 2879 | { |
| 2880 | e = strchr (b, ','); |
| 2881 | |
| 2882 | if (e) |
| 2883 | *e = 0; |
| 2884 | |
| 2885 | for (opt = (*desc)->options; opt->name; opt++) |
| 2886 | if (strcmp (opt->name, b) == 0) |
| 2887 | { |
| 2888 | opt->selected = TRUE; |
| 2889 | break; |
| 2890 | } |
| 2891 | if (opt->name == NULL) |
| 2892 | non_fatal (_("target specific dump '%s' not supported"), b); |
| 2893 | |
| 2894 | if (e) |
| 2895 | { |
| 2896 | *e = ','; |
| 2897 | b = e + 1; |
| 2898 | } |
| 2899 | } |
| 2900 | while (e != NULL); |
| 2901 | |
| 2902 | /* Dump. */ |
| 2903 | (*desc)->dump (abfd); |
| 2904 | } |
| 2905 | \f |
| 2906 | /* Display a section in hexadecimal format with associated characters. |
| 2907 | Each line prefixed by the zero padded address. */ |
| 2908 | |
| 2909 | static void |
| 2910 | dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED) |
| 2911 | { |
| 2912 | bfd_byte *data = 0; |
| 2913 | bfd_size_type datasize; |
| 2914 | bfd_vma addr_offset; |
| 2915 | bfd_vma start_offset; |
| 2916 | bfd_vma stop_offset; |
| 2917 | unsigned int opb = bfd_octets_per_byte (abfd); |
| 2918 | /* Bytes per line. */ |
| 2919 | const int onaline = 16; |
| 2920 | char buf[64]; |
| 2921 | int count; |
| 2922 | int width; |
| 2923 | |
| 2924 | if ((section->flags & SEC_HAS_CONTENTS) == 0) |
| 2925 | return; |
| 2926 | |
| 2927 | if (! process_section_p (section)) |
| 2928 | return; |
| 2929 | |
| 2930 | if ((datasize = bfd_section_size (abfd, section)) == 0) |
| 2931 | return; |
| 2932 | |
| 2933 | /* Compute the address range to display. */ |
| 2934 | if (start_address == (bfd_vma) -1 |
| 2935 | || start_address < section->vma) |
| 2936 | start_offset = 0; |
| 2937 | else |
| 2938 | start_offset = start_address - section->vma; |
| 2939 | |
| 2940 | if (stop_address == (bfd_vma) -1) |
| 2941 | stop_offset = datasize / opb; |
| 2942 | else |
| 2943 | { |
| 2944 | if (stop_address < section->vma) |
| 2945 | stop_offset = 0; |
| 2946 | else |
| 2947 | stop_offset = stop_address - section->vma; |
| 2948 | |
| 2949 | if (stop_offset > datasize / opb) |
| 2950 | stop_offset = datasize / opb; |
| 2951 | } |
| 2952 | |
| 2953 | if (start_offset >= stop_offset) |
| 2954 | return; |
| 2955 | |
| 2956 | printf (_("Contents of section %s:"), section->name); |
| 2957 | if (display_file_offsets) |
| 2958 | printf (_(" (Starting at file offset: 0x%lx)"), |
| 2959 | (unsigned long) (section->filepos + start_offset)); |
| 2960 | printf ("\n"); |
| 2961 | |
| 2962 | if (!bfd_get_full_section_contents (abfd, section, &data)) |
| 2963 | { |
| 2964 | non_fatal (_("Reading section %s failed because: %s"), |
| 2965 | section->name, bfd_errmsg (bfd_get_error ())); |
| 2966 | return; |
| 2967 | } |
| 2968 | |
| 2969 | width = 4; |
| 2970 | |
| 2971 | bfd_sprintf_vma (abfd, buf, start_offset + section->vma); |
| 2972 | if (strlen (buf) >= sizeof (buf)) |
| 2973 | abort (); |
| 2974 | |
| 2975 | count = 0; |
| 2976 | while (buf[count] == '0' && buf[count+1] != '\0') |
| 2977 | count++; |
| 2978 | count = strlen (buf) - count; |
| 2979 | if (count > width) |
| 2980 | width = count; |
| 2981 | |
| 2982 | bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1); |
| 2983 | if (strlen (buf) >= sizeof (buf)) |
| 2984 | abort (); |
| 2985 | |
| 2986 | count = 0; |
| 2987 | while (buf[count] == '0' && buf[count+1] != '\0') |
| 2988 | count++; |
| 2989 | count = strlen (buf) - count; |
| 2990 | if (count > width) |
| 2991 | width = count; |
| 2992 | |
| 2993 | for (addr_offset = start_offset; |
| 2994 | addr_offset < stop_offset; addr_offset += onaline / opb) |
| 2995 | { |
| 2996 | bfd_size_type j; |
| 2997 | |
| 2998 | bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma)); |
| 2999 | count = strlen (buf); |
| 3000 | if ((size_t) count >= sizeof (buf)) |
| 3001 | abort (); |
| 3002 | |
| 3003 | putchar (' '); |
| 3004 | while (count < width) |
| 3005 | { |
| 3006 | putchar ('0'); |
| 3007 | count++; |
| 3008 | } |
| 3009 | fputs (buf + count - width, stdout); |
| 3010 | putchar (' '); |
| 3011 | |
| 3012 | for (j = addr_offset * opb; |
| 3013 | j < addr_offset * opb + onaline; j++) |
| 3014 | { |
| 3015 | if (j < stop_offset * opb) |
| 3016 | printf ("%02x", (unsigned) (data[j])); |
| 3017 | else |
| 3018 | printf (" "); |
| 3019 | if ((j & 3) == 3) |
| 3020 | printf (" "); |
| 3021 | } |
| 3022 | |
| 3023 | printf (" "); |
| 3024 | for (j = addr_offset * opb; |
| 3025 | j < addr_offset * opb + onaline; j++) |
| 3026 | { |
| 3027 | if (j >= stop_offset * opb) |
| 3028 | printf (" "); |
| 3029 | else |
| 3030 | printf ("%c", ISPRINT (data[j]) ? data[j] : '.'); |
| 3031 | } |
| 3032 | putchar ('\n'); |
| 3033 | } |
| 3034 | free (data); |
| 3035 | } |
| 3036 | |
| 3037 | /* Actually display the various requested regions. */ |
| 3038 | |
| 3039 | static void |
| 3040 | dump_data (bfd *abfd) |
| 3041 | { |
| 3042 | bfd_map_over_sections (abfd, dump_section, NULL); |
| 3043 | } |
| 3044 | |
| 3045 | /* Should perhaps share code and display with nm? */ |
| 3046 | |
| 3047 | static void |
| 3048 | dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic) |
| 3049 | { |
| 3050 | asymbol **current; |
| 3051 | long max_count; |
| 3052 | long count; |
| 3053 | |
| 3054 | if (dynamic) |
| 3055 | { |
| 3056 | current = dynsyms; |
| 3057 | max_count = dynsymcount; |
| 3058 | printf ("DYNAMIC SYMBOL TABLE:\n"); |
| 3059 | } |
| 3060 | else |
| 3061 | { |
| 3062 | current = syms; |
| 3063 | max_count = symcount; |
| 3064 | printf ("SYMBOL TABLE:\n"); |
| 3065 | } |
| 3066 | |
| 3067 | if (max_count == 0) |
| 3068 | printf (_("no symbols\n")); |
| 3069 | |
| 3070 | for (count = 0; count < max_count; count++) |
| 3071 | { |
| 3072 | bfd *cur_bfd; |
| 3073 | |
| 3074 | if (*current == NULL) |
| 3075 | printf (_("no information for symbol number %ld\n"), count); |
| 3076 | |
| 3077 | else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL) |
| 3078 | printf (_("could not determine the type of symbol number %ld\n"), |
| 3079 | count); |
| 3080 | |
| 3081 | else if (process_section_p ((* current)->section) |
| 3082 | && (dump_special_syms |
| 3083 | || !bfd_is_target_special_symbol (cur_bfd, *current))) |
| 3084 | { |
| 3085 | const char *name = (*current)->name; |
| 3086 | |
| 3087 | if (do_demangle && name != NULL && *name != '\0') |
| 3088 | { |
| 3089 | char *alloc; |
| 3090 | |
| 3091 | /* If we want to demangle the name, we demangle it |
| 3092 | here, and temporarily clobber it while calling |
| 3093 | bfd_print_symbol. FIXME: This is a gross hack. */ |
| 3094 | alloc = bfd_demangle (cur_bfd, name, DMGL_ANSI | DMGL_PARAMS); |
| 3095 | if (alloc != NULL) |
| 3096 | (*current)->name = alloc; |
| 3097 | bfd_print_symbol (cur_bfd, stdout, *current, |
| 3098 | bfd_print_symbol_all); |
| 3099 | if (alloc != NULL) |
| 3100 | { |
| 3101 | (*current)->name = name; |
| 3102 | free (alloc); |
| 3103 | } |
| 3104 | } |
| 3105 | else |
| 3106 | bfd_print_symbol (cur_bfd, stdout, *current, |
| 3107 | bfd_print_symbol_all); |
| 3108 | printf ("\n"); |
| 3109 | } |
| 3110 | |
| 3111 | current++; |
| 3112 | } |
| 3113 | printf ("\n\n"); |
| 3114 | } |
| 3115 | \f |
| 3116 | static void |
| 3117 | dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount) |
| 3118 | { |
| 3119 | arelent **p; |
| 3120 | char *last_filename, *last_functionname; |
| 3121 | unsigned int last_line; |
| 3122 | unsigned int last_discriminator; |
| 3123 | |
| 3124 | /* Get column headers lined up reasonably. */ |
| 3125 | { |
| 3126 | static int width; |
| 3127 | |
| 3128 | if (width == 0) |
| 3129 | { |
| 3130 | char buf[30]; |
| 3131 | |
| 3132 | bfd_sprintf_vma (abfd, buf, (bfd_vma) -1); |
| 3133 | width = strlen (buf) - 7; |
| 3134 | } |
| 3135 | printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, ""); |
| 3136 | } |
| 3137 | |
| 3138 | last_filename = NULL; |
| 3139 | last_functionname = NULL; |
| 3140 | last_line = 0; |
| 3141 | last_discriminator = 0; |
| 3142 | |
| 3143 | for (p = relpp; relcount && *p != NULL; p++, relcount--) |
| 3144 | { |
| 3145 | arelent *q = *p; |
| 3146 | const char *filename, *functionname; |
| 3147 | unsigned int linenumber; |
| 3148 | unsigned int discriminator; |
| 3149 | const char *sym_name; |
| 3150 | const char *section_name; |
| 3151 | bfd_vma addend2 = 0; |
| 3152 | |
| 3153 | if (start_address != (bfd_vma) -1 |
| 3154 | && q->address < start_address) |
| 3155 | continue; |
| 3156 | if (stop_address != (bfd_vma) -1 |
| 3157 | && q->address > stop_address) |
| 3158 | continue; |
| 3159 | |
| 3160 | if (with_line_numbers |
| 3161 | && sec != NULL |
| 3162 | && bfd_find_nearest_line_discriminator (abfd, sec, syms, q->address, |
| 3163 | &filename, &functionname, |
| 3164 | &linenumber, &discriminator)) |
| 3165 | { |
| 3166 | if (functionname != NULL |
| 3167 | && (last_functionname == NULL |
| 3168 | || strcmp (functionname, last_functionname) != 0)) |
| 3169 | { |
| 3170 | printf ("%s():\n", functionname); |
| 3171 | if (last_functionname != NULL) |
| 3172 | free (last_functionname); |
| 3173 | last_functionname = xstrdup (functionname); |
| 3174 | } |
| 3175 | |
| 3176 | if (linenumber > 0 |
| 3177 | && (linenumber != last_line |
| 3178 | || (filename != NULL |
| 3179 | && last_filename != NULL |
| 3180 | && filename_cmp (filename, last_filename) != 0) |
| 3181 | || (discriminator != last_discriminator))) |
| 3182 | { |
| 3183 | if (discriminator > 0) |
| 3184 | printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber); |
| 3185 | else |
| 3186 | printf ("%s:%u (discriminator %u)\n", filename == NULL ? "???" : filename, |
| 3187 | linenumber, discriminator); |
| 3188 | last_line = linenumber; |
| 3189 | last_discriminator = discriminator; |
| 3190 | if (last_filename != NULL) |
| 3191 | free (last_filename); |
| 3192 | if (filename == NULL) |
| 3193 | last_filename = NULL; |
| 3194 | else |
| 3195 | last_filename = xstrdup (filename); |
| 3196 | } |
| 3197 | } |
| 3198 | |
| 3199 | if (q->sym_ptr_ptr && *q->sym_ptr_ptr) |
| 3200 | { |
| 3201 | sym_name = (*(q->sym_ptr_ptr))->name; |
| 3202 | section_name = (*(q->sym_ptr_ptr))->section->name; |
| 3203 | } |
| 3204 | else |
| 3205 | { |
| 3206 | sym_name = NULL; |
| 3207 | section_name = NULL; |
| 3208 | } |
| 3209 | |
| 3210 | bfd_printf_vma (abfd, q->address); |
| 3211 | if (q->howto == NULL) |
| 3212 | printf (" *unknown* "); |
| 3213 | else if (q->howto->name) |
| 3214 | { |
| 3215 | const char *name = q->howto->name; |
| 3216 | |
| 3217 | /* R_SPARC_OLO10 relocations contain two addends. |
| 3218 | But because 'arelent' lacks enough storage to |
| 3219 | store them both, the 64-bit ELF Sparc backend |
| 3220 | records this as two relocations. One R_SPARC_LO10 |
| 3221 | and one R_SPARC_13, both pointing to the same |
| 3222 | address. This is merely so that we have some |
| 3223 | place to store both addend fields. |
| 3224 | |
| 3225 | Undo this transformation, otherwise the output |
| 3226 | will be confusing. */ |
| 3227 | if (abfd->xvec->flavour == bfd_target_elf_flavour |
| 3228 | && elf_tdata(abfd)->elf_header->e_machine == EM_SPARCV9 |
| 3229 | && relcount > 1 |
| 3230 | && !strcmp (q->howto->name, "R_SPARC_LO10")) |
| 3231 | { |
| 3232 | arelent *q2 = *(p + 1); |
| 3233 | if (q2 != NULL |
| 3234 | && q2->howto |
| 3235 | && q->address == q2->address |
| 3236 | && !strcmp (q2->howto->name, "R_SPARC_13")) |
| 3237 | { |
| 3238 | name = "R_SPARC_OLO10"; |
| 3239 | addend2 = q2->addend; |
| 3240 | p++; |
| 3241 | } |
| 3242 | } |
| 3243 | printf (" %-16s ", name); |
| 3244 | } |
| 3245 | else |
| 3246 | printf (" %-16d ", q->howto->type); |
| 3247 | |
| 3248 | if (sym_name) |
| 3249 | { |
| 3250 | objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr); |
| 3251 | } |
| 3252 | else |
| 3253 | { |
| 3254 | if (section_name == NULL) |
| 3255 | section_name = "*unknown*"; |
| 3256 | printf ("[%s]", section_name); |
| 3257 | } |
| 3258 | |
| 3259 | if (q->addend) |
| 3260 | { |
| 3261 | bfd_signed_vma addend = q->addend; |
| 3262 | if (addend < 0) |
| 3263 | { |
| 3264 | printf ("-0x"); |
| 3265 | addend = -addend; |
| 3266 | } |
| 3267 | else |
| 3268 | printf ("+0x"); |
| 3269 | bfd_printf_vma (abfd, addend); |
| 3270 | } |
| 3271 | if (addend2) |
| 3272 | { |
| 3273 | printf ("+0x"); |
| 3274 | bfd_printf_vma (abfd, addend2); |
| 3275 | } |
| 3276 | |
| 3277 | printf ("\n"); |
| 3278 | } |
| 3279 | |
| 3280 | if (last_filename != NULL) |
| 3281 | free (last_filename); |
| 3282 | if (last_functionname != NULL) |
| 3283 | free (last_functionname); |
| 3284 | } |
| 3285 | |
| 3286 | static void |
| 3287 | dump_relocs_in_section (bfd *abfd, |
| 3288 | asection *section, |
| 3289 | void *dummy ATTRIBUTE_UNUSED) |
| 3290 | { |
| 3291 | arelent **relpp; |
| 3292 | long relcount; |
| 3293 | long relsize; |
| 3294 | |
| 3295 | if ( bfd_is_abs_section (section) |
| 3296 | || bfd_is_und_section (section) |
| 3297 | || bfd_is_com_section (section) |
| 3298 | || (! process_section_p (section)) |
| 3299 | || ((section->flags & SEC_RELOC) == 0)) |
| 3300 | return; |
| 3301 | |
| 3302 | relsize = bfd_get_reloc_upper_bound (abfd, section); |
| 3303 | if (relsize < 0) |
| 3304 | bfd_fatal (bfd_get_filename (abfd)); |
| 3305 | |
| 3306 | printf ("RELOCATION RECORDS FOR [%s]:", section->name); |
| 3307 | |
| 3308 | if (relsize == 0) |
| 3309 | { |
| 3310 | printf (" (none)\n\n"); |
| 3311 | return; |
| 3312 | } |
| 3313 | |
| 3314 | relpp = (arelent **) xmalloc (relsize); |
| 3315 | relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms); |
| 3316 | |
| 3317 | if (relcount < 0) |
| 3318 | { |
| 3319 | printf ("\n"); |
| 3320 | non_fatal (_("failed to read relocs in: %s"), bfd_get_filename (abfd)); |
| 3321 | bfd_fatal (_("error message was")); |
| 3322 | } |
| 3323 | else if (relcount == 0) |
| 3324 | printf (" (none)\n\n"); |
| 3325 | else |
| 3326 | { |
| 3327 | printf ("\n"); |
| 3328 | dump_reloc_set (abfd, section, relpp, relcount); |
| 3329 | printf ("\n\n"); |
| 3330 | } |
| 3331 | free (relpp); |
| 3332 | } |
| 3333 | |
| 3334 | static void |
| 3335 | dump_relocs (bfd *abfd) |
| 3336 | { |
| 3337 | bfd_map_over_sections (abfd, dump_relocs_in_section, NULL); |
| 3338 | } |
| 3339 | |
| 3340 | static void |
| 3341 | dump_dynamic_relocs (bfd *abfd) |
| 3342 | { |
| 3343 | long relsize; |
| 3344 | arelent **relpp; |
| 3345 | long relcount; |
| 3346 | |
| 3347 | relsize = bfd_get_dynamic_reloc_upper_bound (abfd); |
| 3348 | if (relsize < 0) |
| 3349 | bfd_fatal (bfd_get_filename (abfd)); |
| 3350 | |
| 3351 | printf ("DYNAMIC RELOCATION RECORDS"); |
| 3352 | |
| 3353 | if (relsize == 0) |
| 3354 | printf (" (none)\n\n"); |
| 3355 | else |
| 3356 | { |
| 3357 | relpp = (arelent **) xmalloc (relsize); |
| 3358 | relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms); |
| 3359 | |
| 3360 | if (relcount < 0) |
| 3361 | bfd_fatal (bfd_get_filename (abfd)); |
| 3362 | else if (relcount == 0) |
| 3363 | printf (" (none)\n\n"); |
| 3364 | else |
| 3365 | { |
| 3366 | printf ("\n"); |
| 3367 | dump_reloc_set (abfd, NULL, relpp, relcount); |
| 3368 | printf ("\n\n"); |
| 3369 | } |
| 3370 | free (relpp); |
| 3371 | } |
| 3372 | } |
| 3373 | |
| 3374 | /* Creates a table of paths, to search for source files. */ |
| 3375 | |
| 3376 | static void |
| 3377 | add_include_path (const char *path) |
| 3378 | { |
| 3379 | if (path[0] == 0) |
| 3380 | return; |
| 3381 | include_path_count++; |
| 3382 | include_paths = (const char **) |
| 3383 | xrealloc (include_paths, include_path_count * sizeof (*include_paths)); |
| 3384 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 3385 | if (path[1] == ':' && path[2] == 0) |
| 3386 | path = concat (path, ".", (const char *) 0); |
| 3387 | #endif |
| 3388 | include_paths[include_path_count - 1] = path; |
| 3389 | } |
| 3390 | |
| 3391 | static void |
| 3392 | adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED, |
| 3393 | asection *section, |
| 3394 | void *arg) |
| 3395 | { |
| 3396 | if ((section->flags & SEC_DEBUGGING) == 0) |
| 3397 | { |
| 3398 | bfd_boolean *has_reloc_p = (bfd_boolean *) arg; |
| 3399 | section->vma += adjust_section_vma; |
| 3400 | if (*has_reloc_p) |
| 3401 | section->lma += adjust_section_vma; |
| 3402 | } |
| 3403 | } |
| 3404 | |
| 3405 | /* Dump selected contents of ABFD. */ |
| 3406 | |
| 3407 | static void |
| 3408 | dump_bfd (bfd *abfd) |
| 3409 | { |
| 3410 | /* If we are adjusting section VMA's, change them all now. Changing |
| 3411 | the BFD information is a hack. However, we must do it, or |
| 3412 | bfd_find_nearest_line will not do the right thing. */ |
| 3413 | if (adjust_section_vma != 0) |
| 3414 | { |
| 3415 | bfd_boolean has_reloc = (abfd->flags & HAS_RELOC); |
| 3416 | bfd_map_over_sections (abfd, adjust_addresses, &has_reloc); |
| 3417 | } |
| 3418 | |
| 3419 | if (! dump_debugging_tags && ! suppress_bfd_header) |
| 3420 | printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd), |
| 3421 | abfd->xvec->name); |
| 3422 | if (dump_ar_hdrs) |
| 3423 | print_arelt_descr (stdout, abfd, TRUE); |
| 3424 | if (dump_file_header) |
| 3425 | dump_bfd_header (abfd); |
| 3426 | if (dump_private_headers) |
| 3427 | dump_bfd_private_header (abfd); |
| 3428 | if (dump_private_options != NULL) |
| 3429 | dump_target_specific (abfd); |
| 3430 | if (! dump_debugging_tags && ! suppress_bfd_header) |
| 3431 | putchar ('\n'); |
| 3432 | |
| 3433 | if (dump_symtab |
| 3434 | || dump_reloc_info |
| 3435 | || disassemble |
| 3436 | || dump_debugging |
| 3437 | || dump_dwarf_section_info) |
| 3438 | syms = slurp_symtab (abfd); |
| 3439 | |
| 3440 | if (dump_section_headers) |
| 3441 | dump_headers (abfd); |
| 3442 | |
| 3443 | if (dump_dynamic_symtab || dump_dynamic_reloc_info |
| 3444 | || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0)) |
| 3445 | dynsyms = slurp_dynamic_symtab (abfd); |
| 3446 | if (disassemble) |
| 3447 | { |
| 3448 | synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms, |
| 3449 | dynsymcount, dynsyms, &synthsyms); |
| 3450 | if (synthcount < 0) |
| 3451 | synthcount = 0; |
| 3452 | } |
| 3453 | |
| 3454 | if (dump_symtab) |
| 3455 | dump_symbols (abfd, FALSE); |
| 3456 | if (dump_dynamic_symtab) |
| 3457 | dump_symbols (abfd, TRUE); |
| 3458 | if (dump_dwarf_section_info) |
| 3459 | dump_dwarf (abfd); |
| 3460 | if (dump_stab_section_info) |
| 3461 | dump_stabs (abfd); |
| 3462 | if (dump_reloc_info && ! disassemble) |
| 3463 | dump_relocs (abfd); |
| 3464 | if (dump_dynamic_reloc_info && ! disassemble) |
| 3465 | dump_dynamic_relocs (abfd); |
| 3466 | if (dump_section_contents) |
| 3467 | dump_data (abfd); |
| 3468 | if (disassemble) |
| 3469 | disassemble_data (abfd); |
| 3470 | |
| 3471 | if (dump_debugging) |
| 3472 | { |
| 3473 | void *dhandle; |
| 3474 | |
| 3475 | dhandle = read_debugging_info (abfd, syms, symcount, TRUE); |
| 3476 | if (dhandle != NULL) |
| 3477 | { |
| 3478 | if (!print_debugging_info (stdout, dhandle, abfd, syms, |
| 3479 | bfd_demangle, |
| 3480 | dump_debugging_tags ? TRUE : FALSE)) |
| 3481 | { |
| 3482 | non_fatal (_("%s: printing debugging information failed"), |
| 3483 | bfd_get_filename (abfd)); |
| 3484 | exit_status = 1; |
| 3485 | } |
| 3486 | } |
| 3487 | /* PR 6483: If there was no STABS or IEEE debug |
| 3488 | info in the file, try DWARF instead. */ |
| 3489 | else if (! dump_dwarf_section_info) |
| 3490 | { |
| 3491 | dwarf_select_sections_all (); |
| 3492 | dump_dwarf (abfd); |
| 3493 | } |
| 3494 | } |
| 3495 | |
| 3496 | if (syms) |
| 3497 | { |
| 3498 | free (syms); |
| 3499 | syms = NULL; |
| 3500 | } |
| 3501 | |
| 3502 | if (dynsyms) |
| 3503 | { |
| 3504 | free (dynsyms); |
| 3505 | dynsyms = NULL; |
| 3506 | } |
| 3507 | |
| 3508 | if (synthsyms) |
| 3509 | { |
| 3510 | free (synthsyms); |
| 3511 | synthsyms = NULL; |
| 3512 | } |
| 3513 | |
| 3514 | symcount = 0; |
| 3515 | dynsymcount = 0; |
| 3516 | synthcount = 0; |
| 3517 | } |
| 3518 | |
| 3519 | static void |
| 3520 | display_object_bfd (bfd *abfd) |
| 3521 | { |
| 3522 | char **matching; |
| 3523 | |
| 3524 | if (bfd_check_format_matches (abfd, bfd_object, &matching)) |
| 3525 | { |
| 3526 | dump_bfd (abfd); |
| 3527 | return; |
| 3528 | } |
| 3529 | |
| 3530 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) |
| 3531 | { |
| 3532 | nonfatal (bfd_get_filename (abfd)); |
| 3533 | list_matching_formats (matching); |
| 3534 | free (matching); |
| 3535 | return; |
| 3536 | } |
| 3537 | |
| 3538 | if (bfd_get_error () != bfd_error_file_not_recognized) |
| 3539 | { |
| 3540 | nonfatal (bfd_get_filename (abfd)); |
| 3541 | return; |
| 3542 | } |
| 3543 | |
| 3544 | if (bfd_check_format_matches (abfd, bfd_core, &matching)) |
| 3545 | { |
| 3546 | dump_bfd (abfd); |
| 3547 | return; |
| 3548 | } |
| 3549 | |
| 3550 | nonfatal (bfd_get_filename (abfd)); |
| 3551 | |
| 3552 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) |
| 3553 | { |
| 3554 | list_matching_formats (matching); |
| 3555 | free (matching); |
| 3556 | } |
| 3557 | } |
| 3558 | |
| 3559 | static void |
| 3560 | display_any_bfd (bfd *file, int level) |
| 3561 | { |
| 3562 | /* Decompress sections unless dumping the section contents. */ |
| 3563 | if (!dump_section_contents) |
| 3564 | file->flags |= BFD_DECOMPRESS; |
| 3565 | |
| 3566 | /* If the file is an archive, process all of its elements. */ |
| 3567 | if (bfd_check_format (file, bfd_archive)) |
| 3568 | { |
| 3569 | bfd *arfile = NULL; |
| 3570 | bfd *last_arfile = NULL; |
| 3571 | |
| 3572 | if (level == 0) |
| 3573 | printf (_("In archive %s:\n"), bfd_get_filename (file)); |
| 3574 | else if (level > 100) |
| 3575 | { |
| 3576 | /* Prevent corrupted files from spinning us into an |
| 3577 | infinite loop. 100 is an arbitrary heuristic. */ |
| 3578 | fatal (_("Archive nesting is too deep")); |
| 3579 | return; |
| 3580 | } |
| 3581 | else |
| 3582 | printf (_("In nested archive %s:\n"), bfd_get_filename (file)); |
| 3583 | |
| 3584 | for (;;) |
| 3585 | { |
| 3586 | bfd_set_error (bfd_error_no_error); |
| 3587 | |
| 3588 | arfile = bfd_openr_next_archived_file (file, arfile); |
| 3589 | if (arfile == NULL) |
| 3590 | { |
| 3591 | if (bfd_get_error () != bfd_error_no_more_archived_files) |
| 3592 | nonfatal (bfd_get_filename (file)); |
| 3593 | break; |
| 3594 | } |
| 3595 | |
| 3596 | display_any_bfd (arfile, level + 1); |
| 3597 | |
| 3598 | if (last_arfile != NULL) |
| 3599 | { |
| 3600 | bfd_close (last_arfile); |
| 3601 | /* PR 17512: file: ac585d01. */ |
| 3602 | if (arfile == last_arfile) |
| 3603 | { |
| 3604 | last_arfile = NULL; |
| 3605 | break; |
| 3606 | } |
| 3607 | } |
| 3608 | last_arfile = arfile; |
| 3609 | } |
| 3610 | |
| 3611 | if (last_arfile != NULL) |
| 3612 | bfd_close (last_arfile); |
| 3613 | } |
| 3614 | else |
| 3615 | display_object_bfd (file); |
| 3616 | } |
| 3617 | |
| 3618 | static void |
| 3619 | display_file (char *filename, char *target) |
| 3620 | { |
| 3621 | bfd *file; |
| 3622 | |
| 3623 | if (get_file_size (filename) < 1) |
| 3624 | { |
| 3625 | exit_status = 1; |
| 3626 | return; |
| 3627 | } |
| 3628 | |
| 3629 | file = bfd_openr (filename, target); |
| 3630 | if (file == NULL) |
| 3631 | { |
| 3632 | nonfatal (filename); |
| 3633 | return; |
| 3634 | } |
| 3635 | |
| 3636 | display_any_bfd (file, 0); |
| 3637 | |
| 3638 | bfd_close (file); |
| 3639 | } |
| 3640 | \f |
| 3641 | int |
| 3642 | main (int argc, char **argv) |
| 3643 | { |
| 3644 | int c; |
| 3645 | char *target = default_target; |
| 3646 | bfd_boolean seenflag = FALSE; |
| 3647 | |
| 3648 | #if defined (HAVE_SETLOCALE) |
| 3649 | #if defined (HAVE_LC_MESSAGES) |
| 3650 | setlocale (LC_MESSAGES, ""); |
| 3651 | #endif |
| 3652 | setlocale (LC_CTYPE, ""); |
| 3653 | #endif |
| 3654 | |
| 3655 | bindtextdomain (PACKAGE, LOCALEDIR); |
| 3656 | textdomain (PACKAGE); |
| 3657 | |
| 3658 | program_name = *argv; |
| 3659 | xmalloc_set_program_name (program_name); |
| 3660 | bfd_set_error_program_name (program_name); |
| 3661 | |
| 3662 | START_PROGRESS (program_name, 0); |
| 3663 | |
| 3664 | expandargv (&argc, &argv); |
| 3665 | |
| 3666 | bfd_init (); |
| 3667 | set_default_bfd_target (); |
| 3668 | |
| 3669 | while ((c = getopt_long (argc, argv, |
| 3670 | "pP:ib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::", |
| 3671 | long_options, (int *) 0)) |
| 3672 | != EOF) |
| 3673 | { |
| 3674 | switch (c) |
| 3675 | { |
| 3676 | case 0: |
| 3677 | break; /* We've been given a long option. */ |
| 3678 | case 'm': |
| 3679 | machine = optarg; |
| 3680 | break; |
| 3681 | case 'M': |
| 3682 | if (disassembler_options) |
| 3683 | /* Ignore potential memory leak for now. */ |
| 3684 | disassembler_options = concat (disassembler_options, ",", |
| 3685 | optarg, (const char *) NULL); |
| 3686 | else |
| 3687 | disassembler_options = optarg; |
| 3688 | break; |
| 3689 | case 'j': |
| 3690 | add_only (optarg); |
| 3691 | break; |
| 3692 | case 'F': |
| 3693 | display_file_offsets = TRUE; |
| 3694 | break; |
| 3695 | case 'l': |
| 3696 | with_line_numbers = TRUE; |
| 3697 | break; |
| 3698 | case 'b': |
| 3699 | target = optarg; |
| 3700 | break; |
| 3701 | case 'C': |
| 3702 | do_demangle = TRUE; |
| 3703 | if (optarg != NULL) |
| 3704 | { |
| 3705 | enum demangling_styles style; |
| 3706 | |
| 3707 | style = cplus_demangle_name_to_style (optarg); |
| 3708 | if (style == unknown_demangling) |
| 3709 | fatal (_("unknown demangling style `%s'"), |
| 3710 | optarg); |
| 3711 | |
| 3712 | cplus_demangle_set_style (style); |
| 3713 | } |
| 3714 | break; |
| 3715 | case 'w': |
| 3716 | wide_output = TRUE; |
| 3717 | break; |
| 3718 | case OPTION_ADJUST_VMA: |
| 3719 | adjust_section_vma = parse_vma (optarg, "--adjust-vma"); |
| 3720 | break; |
| 3721 | case OPTION_START_ADDRESS: |
| 3722 | start_address = parse_vma (optarg, "--start-address"); |
| 3723 | if ((stop_address != (bfd_vma) -1) && stop_address <= start_address) |
| 3724 | fatal (_("error: the start address should be before the end address")); |
| 3725 | break; |
| 3726 | case OPTION_STOP_ADDRESS: |
| 3727 | stop_address = parse_vma (optarg, "--stop-address"); |
| 3728 | if ((start_address != (bfd_vma) -1) && stop_address <= start_address) |
| 3729 | fatal (_("error: the stop address should be after the start address")); |
| 3730 | break; |
| 3731 | case OPTION_PREFIX: |
| 3732 | prefix = optarg; |
| 3733 | prefix_length = strlen (prefix); |
| 3734 | /* Remove an unnecessary trailing '/' */ |
| 3735 | while (IS_DIR_SEPARATOR (prefix[prefix_length - 1])) |
| 3736 | prefix_length--; |
| 3737 | break; |
| 3738 | case OPTION_PREFIX_STRIP: |
| 3739 | prefix_strip = atoi (optarg); |
| 3740 | if (prefix_strip < 0) |
| 3741 | fatal (_("error: prefix strip must be non-negative")); |
| 3742 | break; |
| 3743 | case OPTION_INSN_WIDTH: |
| 3744 | insn_width = strtoul (optarg, NULL, 0); |
| 3745 | if (insn_width <= 0) |
| 3746 | fatal (_("error: instruction width must be positive")); |
| 3747 | break; |
| 3748 | case 'E': |
| 3749 | if (strcmp (optarg, "B") == 0) |
| 3750 | endian = BFD_ENDIAN_BIG; |
| 3751 | else if (strcmp (optarg, "L") == 0) |
| 3752 | endian = BFD_ENDIAN_LITTLE; |
| 3753 | else |
| 3754 | { |
| 3755 | nonfatal (_("unrecognized -E option")); |
| 3756 | usage (stderr, 1); |
| 3757 | } |
| 3758 | break; |
| 3759 | case OPTION_ENDIAN: |
| 3760 | if (strncmp (optarg, "big", strlen (optarg)) == 0) |
| 3761 | endian = BFD_ENDIAN_BIG; |
| 3762 | else if (strncmp (optarg, "little", strlen (optarg)) == 0) |
| 3763 | endian = BFD_ENDIAN_LITTLE; |
| 3764 | else |
| 3765 | { |
| 3766 | non_fatal (_("unrecognized --endian type `%s'"), optarg); |
| 3767 | exit_status = 1; |
| 3768 | usage (stderr, 1); |
| 3769 | } |
| 3770 | break; |
| 3771 | |
| 3772 | case 'f': |
| 3773 | dump_file_header = TRUE; |
| 3774 | seenflag = TRUE; |
| 3775 | break; |
| 3776 | case 'i': |
| 3777 | formats_info = TRUE; |
| 3778 | seenflag = TRUE; |
| 3779 | break; |
| 3780 | case 'I': |
| 3781 | add_include_path (optarg); |
| 3782 | break; |
| 3783 | case 'p': |
| 3784 | dump_private_headers = TRUE; |
| 3785 | seenflag = TRUE; |
| 3786 | break; |
| 3787 | case 'P': |
| 3788 | dump_private_options = optarg; |
| 3789 | seenflag = TRUE; |
| 3790 | break; |
| 3791 | case 'x': |
| 3792 | dump_private_headers = TRUE; |
| 3793 | dump_symtab = TRUE; |
| 3794 | dump_reloc_info = TRUE; |
| 3795 | dump_file_header = TRUE; |
| 3796 | dump_ar_hdrs = TRUE; |
| 3797 | dump_section_headers = TRUE; |
| 3798 | seenflag = TRUE; |
| 3799 | break; |
| 3800 | case 't': |
| 3801 | dump_symtab = TRUE; |
| 3802 | seenflag = TRUE; |
| 3803 | break; |
| 3804 | case 'T': |
| 3805 | dump_dynamic_symtab = TRUE; |
| 3806 | seenflag = TRUE; |
| 3807 | break; |
| 3808 | case 'd': |
| 3809 | disassemble = TRUE; |
| 3810 | seenflag = TRUE; |
| 3811 | break; |
| 3812 | case 'z': |
| 3813 | disassemble_zeroes = TRUE; |
| 3814 | break; |
| 3815 | case 'D': |
| 3816 | disassemble = TRUE; |
| 3817 | disassemble_all = TRUE; |
| 3818 | seenflag = TRUE; |
| 3819 | break; |
| 3820 | case 'S': |
| 3821 | disassemble = TRUE; |
| 3822 | with_source_code = TRUE; |
| 3823 | seenflag = TRUE; |
| 3824 | break; |
| 3825 | case 'g': |
| 3826 | dump_debugging = 1; |
| 3827 | seenflag = TRUE; |
| 3828 | break; |
| 3829 | case 'e': |
| 3830 | dump_debugging = 1; |
| 3831 | dump_debugging_tags = 1; |
| 3832 | do_demangle = TRUE; |
| 3833 | seenflag = TRUE; |
| 3834 | break; |
| 3835 | case 'W': |
| 3836 | dump_dwarf_section_info = TRUE; |
| 3837 | seenflag = TRUE; |
| 3838 | if (optarg) |
| 3839 | dwarf_select_sections_by_letters (optarg); |
| 3840 | else |
| 3841 | dwarf_select_sections_all (); |
| 3842 | break; |
| 3843 | case OPTION_DWARF: |
| 3844 | dump_dwarf_section_info = TRUE; |
| 3845 | seenflag = TRUE; |
| 3846 | if (optarg) |
| 3847 | dwarf_select_sections_by_names (optarg); |
| 3848 | else |
| 3849 | dwarf_select_sections_all (); |
| 3850 | break; |
| 3851 | case OPTION_DWARF_DEPTH: |
| 3852 | { |
| 3853 | char *cp; |
| 3854 | dwarf_cutoff_level = strtoul (optarg, & cp, 0); |
| 3855 | } |
| 3856 | break; |
| 3857 | case OPTION_DWARF_START: |
| 3858 | { |
| 3859 | char *cp; |
| 3860 | dwarf_start_die = strtoul (optarg, & cp, 0); |
| 3861 | suppress_bfd_header = 1; |
| 3862 | } |
| 3863 | break; |
| 3864 | case OPTION_DWARF_CHECK: |
| 3865 | dwarf_check = TRUE; |
| 3866 | break; |
| 3867 | case 'G': |
| 3868 | dump_stab_section_info = TRUE; |
| 3869 | seenflag = TRUE; |
| 3870 | break; |
| 3871 | case 's': |
| 3872 | dump_section_contents = TRUE; |
| 3873 | seenflag = TRUE; |
| 3874 | break; |
| 3875 | case 'r': |
| 3876 | dump_reloc_info = TRUE; |
| 3877 | seenflag = TRUE; |
| 3878 | break; |
| 3879 | case 'R': |
| 3880 | dump_dynamic_reloc_info = TRUE; |
| 3881 | seenflag = TRUE; |
| 3882 | break; |
| 3883 | case 'a': |
| 3884 | dump_ar_hdrs = TRUE; |
| 3885 | seenflag = TRUE; |
| 3886 | break; |
| 3887 | case 'h': |
| 3888 | dump_section_headers = TRUE; |
| 3889 | seenflag = TRUE; |
| 3890 | break; |
| 3891 | case 'v': |
| 3892 | case 'V': |
| 3893 | show_version = TRUE; |
| 3894 | seenflag = TRUE; |
| 3895 | break; |
| 3896 | |
| 3897 | case 'H': |
| 3898 | usage (stdout, 0); |
| 3899 | /* No need to set seenflag or to break - usage() does not return. */ |
| 3900 | default: |
| 3901 | usage (stderr, 1); |
| 3902 | } |
| 3903 | } |
| 3904 | |
| 3905 | if (show_version) |
| 3906 | print_version ("objdump"); |
| 3907 | |
| 3908 | if (!seenflag) |
| 3909 | usage (stderr, 2); |
| 3910 | |
| 3911 | if (formats_info) |
| 3912 | exit_status = display_info (); |
| 3913 | else |
| 3914 | { |
| 3915 | if (optind == argc) |
| 3916 | display_file ("a.out", target); |
| 3917 | else |
| 3918 | for (; optind < argc;) |
| 3919 | display_file (argv[optind++], target); |
| 3920 | } |
| 3921 | |
| 3922 | free_only_list (); |
| 3923 | |
| 3924 | END_PROGRESS (program_name); |
| 3925 | |
| 3926 | return exit_status; |
| 3927 | } |