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[binutils.git] / binutils / objdump.c
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1 /* objdump.c -- dump information about an object file.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
11 any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
24 /* Objdump overview.
26 Objdump displays information about one or more object files, either on
27 their own, or inside libraries. It is commonly used as a disassembler,
28 but it can also display information about file headers, symbol tables,
29 relocations, debugging directives and more.
31 The flow of execution is as follows:
33 1. Command line arguments are checked for control switches and the
34 information to be displayed is selected.
36 2. Any remaining arguments are assumed to be object files, and they are
37 processed in order by display_bfd(). If the file is an archive each
38 of its elements is processed in turn.
40 3. The file's target architecture and binary file format are determined
41 by bfd_check_format(). If they are recognised, then dump_bfd() is
42 called.
44 4. dump_bfd() in turn calls separate functions to display the requested
45 item(s) of information(s). For example disassemble_data() is called if
46 a disassembly has been requested.
48 When disassembling the code loops through blocks of instructions bounded
49 by symbols, calling disassemble_bytes() on each block. The actual
50 disassembling is done by the libopcodes library, via a function pointer
51 supplied by the disassembler() function. */
53 #include "sysdep.h"
54 #include "bfd.h"
55 #include "elf-bfd.h"
56 #include "progress.h"
57 #include "bucomm.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 "debug.h"
65 #include "budbg.h"
67 #ifdef HAVE_MMAP
68 #include <sys/mman.h>
69 #endif
71 #include <sys/stat.h>
73 /* Internal headers for the ELF .stab-dump code - sorry. */
74 #define BYTES_IN_WORD 32
75 #include "aout/aout64.h"
77 /* Exit status. */
78 static int exit_status = 0;
80 static char *default_target = NULL; /* Default at runtime. */
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 int prefix_addresses; /* --prefix-addresses */
95 static int with_line_numbers; /* -l */
96 static bfd_boolean with_source_code; /* -S */
97 static int show_raw_insn; /* --show-raw-insn */
98 static int dump_dwarf_section_info; /* --dwarf */
99 static int dump_stab_section_info; /* --stabs */
100 static int do_demangle; /* -C, --demangle */
101 static bfd_boolean disassemble; /* -d */
102 static bfd_boolean disassemble_all; /* -D */
103 static int disassemble_zeroes; /* --disassemble-zeroes */
104 static bfd_boolean formats_info; /* -i */
105 static int wide_output; /* -w */
106 static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
107 static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
108 static int dump_debugging; /* --debugging */
109 static int dump_debugging_tags; /* --debugging-tags */
110 static int dump_special_syms = 0; /* --special-syms */
111 static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
112 static int file_start_context = 0; /* --file-start-context */
113 static bfd_boolean display_file_offsets;/* -F */
115 /* Pointer to an array of section names provided by
116 one or more "-j secname" command line options. */
117 static char **only;
118 /* The total number of slots in the only[] array. */
119 static size_t only_size = 0;
120 /* The number of occupied slots in the only[] array. */
121 static size_t only_used = 0;
123 /* Variables for handling include file path table. */
124 static const char **include_paths;
125 static int include_path_count;
127 /* Extra info to pass to the section disassembler and address printing
128 function. */
129 struct objdump_disasm_info
131 bfd * abfd;
132 asection * sec;
133 bfd_boolean require_sec;
134 arelent ** dynrelbuf;
135 long dynrelcount;
136 disassembler_ftype disassemble_fn;
137 arelent * reloc;
140 /* Architecture to disassemble for, or default if NULL. */
141 static char *machine = NULL;
143 /* Target specific options to the disassembler. */
144 static char *disassembler_options = NULL;
146 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
147 static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
149 /* The symbol table. */
150 static asymbol **syms;
152 /* Number of symbols in `syms'. */
153 static long symcount = 0;
155 /* The sorted symbol table. */
156 static asymbol **sorted_syms;
158 /* Number of symbols in `sorted_syms'. */
159 static long sorted_symcount = 0;
161 /* The dynamic symbol table. */
162 static asymbol **dynsyms;
164 /* The synthetic symbol table. */
165 static asymbol *synthsyms;
166 static long synthcount = 0;
168 /* Number of symbols in `dynsyms'. */
169 static long dynsymcount = 0;
171 static bfd_byte *stabs;
172 static bfd_size_type stab_size;
174 static char *strtab;
175 static bfd_size_type stabstr_size;
177 static bfd_boolean is_relocatable = FALSE;
179 static void
180 usage (FILE *stream, int status)
182 fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name);
183 fprintf (stream, _(" Display information from object <file(s)>.\n"));
184 fprintf (stream, _(" At least one of the following switches must be given:\n"));
185 fprintf (stream, _("\
186 -a, --archive-headers Display archive header information\n\
187 -f, --file-headers Display the contents of the overall file header\n\
188 -p, --private-headers Display object format specific file header contents\n\
189 -h, --[section-]headers Display the contents of the section headers\n\
190 -x, --all-headers Display the contents of all headers\n\
191 -d, --disassemble Display assembler contents of executable sections\n\
192 -D, --disassemble-all Display assembler contents of all sections\n\
193 -S, --source Intermix source code with disassembly\n\
194 -s, --full-contents Display the full contents of all sections requested\n\
195 -g, --debugging Display debug information in object file\n\
196 -e, --debugging-tags Display debug information using ctags style\n\
197 -G, --stabs Display (in raw form) any STABS info in the file\n\
198 -W, --dwarf Display DWARF info in the file\n\
199 -t, --syms Display the contents of the symbol table(s)\n\
200 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
201 -r, --reloc Display the relocation entries in the file\n\
202 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
203 @<file> Read options from <file>\n\
204 -v, --version Display this program's version number\n\
205 -i, --info List object formats and architectures supported\n\
206 -H, --help Display this information\n\
207 "));
208 if (status != 2)
210 fprintf (stream, _("\n The following switches are optional:\n"));
211 fprintf (stream, _("\
212 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
213 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
214 -j, --section=NAME Only display information for section NAME\n\
215 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
216 -EB --endian=big Assume big endian format when disassembling\n\
217 -EL --endian=little Assume little endian format when disassembling\n\
218 --file-start-context Include context from start of file (with -S)\n\
219 -I, --include=DIR Add DIR to search list for source files\n\
220 -l, --line-numbers Include line numbers and filenames in output\n\
221 -F, --file-offsets Include file offsets when displaying information\n\
222 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
223 The STYLE, if specified, can be `auto', `gnu',\n\
224 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
225 or `gnat'\n\
226 -w, --wide Format output for more than 80 columns\n\
227 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
228 --start-address=ADDR Only process data whose address is >= ADDR\n\
229 --stop-address=ADDR Only process data whose address is <= ADDR\n\
230 --prefix-addresses Print complete address alongside disassembly\n\
231 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
232 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
233 --special-syms Include special symbols in symbol dumps\n\
234 \n"));
235 list_supported_targets (program_name, stream);
236 list_supported_architectures (program_name, stream);
238 disassembler_usage (stream);
240 if (REPORT_BUGS_TO[0] && status == 0)
241 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
242 exit (status);
245 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
246 enum option_values
248 OPTION_ENDIAN=150,
249 OPTION_START_ADDRESS,
250 OPTION_STOP_ADDRESS,
251 OPTION_ADJUST_VMA
254 static struct option long_options[]=
256 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
257 {"all-headers", no_argument, NULL, 'x'},
258 {"private-headers", no_argument, NULL, 'p'},
259 {"architecture", required_argument, NULL, 'm'},
260 {"archive-headers", no_argument, NULL, 'a'},
261 {"debugging", no_argument, NULL, 'g'},
262 {"debugging-tags", no_argument, NULL, 'e'},
263 {"demangle", optional_argument, NULL, 'C'},
264 {"disassemble", no_argument, NULL, 'd'},
265 {"disassemble-all", no_argument, NULL, 'D'},
266 {"disassembler-options", required_argument, NULL, 'M'},
267 {"disassemble-zeroes", no_argument, NULL, 'z'},
268 {"dynamic-reloc", no_argument, NULL, 'R'},
269 {"dynamic-syms", no_argument, NULL, 'T'},
270 {"endian", required_argument, NULL, OPTION_ENDIAN},
271 {"file-headers", no_argument, NULL, 'f'},
272 {"file-offsets", no_argument, NULL, 'F'},
273 {"file-start-context", no_argument, &file_start_context, 1},
274 {"full-contents", no_argument, NULL, 's'},
275 {"headers", no_argument, NULL, 'h'},
276 {"help", no_argument, NULL, 'H'},
277 {"info", no_argument, NULL, 'i'},
278 {"line-numbers", no_argument, NULL, 'l'},
279 {"no-show-raw-insn", no_argument, &show_raw_insn, -1},
280 {"prefix-addresses", no_argument, &prefix_addresses, 1},
281 {"reloc", no_argument, NULL, 'r'},
282 {"section", required_argument, NULL, 'j'},
283 {"section-headers", no_argument, NULL, 'h'},
284 {"show-raw-insn", no_argument, &show_raw_insn, 1},
285 {"source", no_argument, NULL, 'S'},
286 {"special-syms", no_argument, &dump_special_syms, 1},
287 {"include", required_argument, NULL, 'I'},
288 {"dwarf", no_argument, NULL, 'W'},
289 {"stabs", no_argument, NULL, 'G'},
290 {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
291 {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
292 {"syms", no_argument, NULL, 't'},
293 {"target", required_argument, NULL, 'b'},
294 {"version", no_argument, NULL, 'V'},
295 {"wide", no_argument, NULL, 'w'},
296 {0, no_argument, 0, 0}
299 static void
300 nonfatal (const char *msg)
302 bfd_nonfatal (msg);
303 exit_status = 1;
306 static void
307 dump_section_header (bfd *abfd, asection *section,
308 void *ignored ATTRIBUTE_UNUSED)
310 char *comma = "";
311 unsigned int opb = bfd_octets_per_byte (abfd);
313 /* Ignore linker created section. See elfNN_ia64_object_p in
314 bfd/elfxx-ia64.c. */
315 if (section->flags & SEC_LINKER_CREATED)
316 return;
318 printf ("%3d %-13s %08lx ", section->index,
319 bfd_get_section_name (abfd, section),
320 (unsigned long) bfd_section_size (abfd, section) / opb);
321 bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
322 printf (" ");
323 bfd_printf_vma (abfd, section->lma);
324 printf (" %08lx 2**%u", (unsigned long) section->filepos,
325 bfd_get_section_alignment (abfd, section));
326 if (! wide_output)
327 printf ("\n ");
328 printf (" ");
330 #define PF(x, y) \
331 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
333 PF (SEC_HAS_CONTENTS, "CONTENTS");
334 PF (SEC_ALLOC, "ALLOC");
335 PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
336 PF (SEC_LOAD, "LOAD");
337 PF (SEC_RELOC, "RELOC");
338 PF (SEC_READONLY, "READONLY");
339 PF (SEC_CODE, "CODE");
340 PF (SEC_DATA, "DATA");
341 PF (SEC_ROM, "ROM");
342 PF (SEC_DEBUGGING, "DEBUGGING");
343 PF (SEC_NEVER_LOAD, "NEVER_LOAD");
344 PF (SEC_EXCLUDE, "EXCLUDE");
345 PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
346 if (bfd_get_arch (abfd) == bfd_arch_tic54x)
348 PF (SEC_TIC54X_BLOCK, "BLOCK");
349 PF (SEC_TIC54X_CLINK, "CLINK");
351 PF (SEC_SMALL_DATA, "SMALL_DATA");
352 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
353 PF (SEC_COFF_SHARED, "SHARED");
354 PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
355 PF (SEC_GROUP, "GROUP");
357 if ((section->flags & SEC_LINK_ONCE) != 0)
359 const char *ls;
360 struct coff_comdat_info *comdat;
362 switch (section->flags & SEC_LINK_DUPLICATES)
364 default:
365 abort ();
366 case SEC_LINK_DUPLICATES_DISCARD:
367 ls = "LINK_ONCE_DISCARD";
368 break;
369 case SEC_LINK_DUPLICATES_ONE_ONLY:
370 ls = "LINK_ONCE_ONE_ONLY";
371 break;
372 case SEC_LINK_DUPLICATES_SAME_SIZE:
373 ls = "LINK_ONCE_SAME_SIZE";
374 break;
375 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
376 ls = "LINK_ONCE_SAME_CONTENTS";
377 break;
379 printf ("%s%s", comma, ls);
381 comdat = bfd_coff_get_comdat_section (abfd, section);
382 if (comdat != NULL)
383 printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
385 comma = ", ";
388 printf ("\n");
389 #undef PF
392 static void
393 dump_headers (bfd *abfd)
395 printf (_("Sections:\n"));
397 #ifndef BFD64
398 printf (_("Idx Name Size VMA LMA File off Algn"));
399 #else
400 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
401 if (bfd_get_arch_size (abfd) == 32)
402 printf (_("Idx Name Size VMA LMA File off Algn"));
403 else
404 printf (_("Idx Name Size VMA LMA File off Algn"));
405 #endif
407 if (wide_output)
408 printf (_(" Flags"));
409 if (abfd->flags & HAS_LOAD_PAGE)
410 printf (_(" Pg"));
411 printf ("\n");
413 bfd_map_over_sections (abfd, dump_section_header, NULL);
416 static asymbol **
417 slurp_symtab (bfd *abfd)
419 asymbol **sy = NULL;
420 long storage;
422 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
424 symcount = 0;
425 return NULL;
428 storage = bfd_get_symtab_upper_bound (abfd);
429 if (storage < 0)
430 bfd_fatal (bfd_get_filename (abfd));
431 if (storage)
432 sy = xmalloc (storage);
434 symcount = bfd_canonicalize_symtab (abfd, sy);
435 if (symcount < 0)
436 bfd_fatal (bfd_get_filename (abfd));
437 return sy;
440 /* Read in the dynamic symbols. */
442 static asymbol **
443 slurp_dynamic_symtab (bfd *abfd)
445 asymbol **sy = NULL;
446 long storage;
448 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
449 if (storage < 0)
451 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
453 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
454 dynsymcount = 0;
455 return NULL;
458 bfd_fatal (bfd_get_filename (abfd));
460 if (storage)
461 sy = xmalloc (storage);
463 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
464 if (dynsymcount < 0)
465 bfd_fatal (bfd_get_filename (abfd));
466 return sy;
469 /* Filter out (in place) symbols that are useless for disassembly.
470 COUNT is the number of elements in SYMBOLS.
471 Return the number of useful symbols. */
473 static long
474 remove_useless_symbols (asymbol **symbols, long count)
476 asymbol **in_ptr = symbols, **out_ptr = symbols;
478 while (--count >= 0)
480 asymbol *sym = *in_ptr++;
482 if (sym->name == NULL || sym->name[0] == '\0')
483 continue;
484 if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
485 continue;
486 if (bfd_is_und_section (sym->section)
487 || bfd_is_com_section (sym->section))
488 continue;
490 *out_ptr++ = sym;
492 return out_ptr - symbols;
495 /* Sort symbols into value order. */
497 static int
498 compare_symbols (const void *ap, const void *bp)
500 const asymbol *a = * (const asymbol **) ap;
501 const asymbol *b = * (const asymbol **) bp;
502 const char *an;
503 const char *bn;
504 size_t anl;
505 size_t bnl;
506 bfd_boolean af;
507 bfd_boolean bf;
508 flagword aflags;
509 flagword bflags;
511 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
512 return 1;
513 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
514 return -1;
516 if (a->section > b->section)
517 return 1;
518 else if (a->section < b->section)
519 return -1;
521 an = bfd_asymbol_name (a);
522 bn = bfd_asymbol_name (b);
523 anl = strlen (an);
524 bnl = strlen (bn);
526 /* The symbols gnu_compiled and gcc2_compiled convey no real
527 information, so put them after other symbols with the same value. */
528 af = (strstr (an, "gnu_compiled") != NULL
529 || strstr (an, "gcc2_compiled") != NULL);
530 bf = (strstr (bn, "gnu_compiled") != NULL
531 || strstr (bn, "gcc2_compiled") != NULL);
533 if (af && ! bf)
534 return 1;
535 if (! af && bf)
536 return -1;
538 /* We use a heuristic for the file name, to try to sort it after
539 more useful symbols. It may not work on non Unix systems, but it
540 doesn't really matter; the only difference is precisely which
541 symbol names get printed. */
543 #define file_symbol(s, sn, snl) \
544 (((s)->flags & BSF_FILE) != 0 \
545 || ((sn)[(snl) - 2] == '.' \
546 && ((sn)[(snl) - 1] == 'o' \
547 || (sn)[(snl) - 1] == 'a')))
549 af = file_symbol (a, an, anl);
550 bf = file_symbol (b, bn, bnl);
552 if (af && ! bf)
553 return 1;
554 if (! af && bf)
555 return -1;
557 /* Try to sort global symbols before local symbols before function
558 symbols before debugging symbols. */
560 aflags = a->flags;
561 bflags = b->flags;
563 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
565 if ((aflags & BSF_DEBUGGING) != 0)
566 return 1;
567 else
568 return -1;
570 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
572 if ((aflags & BSF_FUNCTION) != 0)
573 return -1;
574 else
575 return 1;
577 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
579 if ((aflags & BSF_LOCAL) != 0)
580 return 1;
581 else
582 return -1;
584 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
586 if ((aflags & BSF_GLOBAL) != 0)
587 return -1;
588 else
589 return 1;
592 /* Symbols that start with '.' might be section names, so sort them
593 after symbols that don't start with '.'. */
594 if (an[0] == '.' && bn[0] != '.')
595 return 1;
596 if (an[0] != '.' && bn[0] == '.')
597 return -1;
599 /* Finally, if we can't distinguish them in any other way, try to
600 get consistent results by sorting the symbols by name. */
601 return strcmp (an, bn);
604 /* Sort relocs into address order. */
606 static int
607 compare_relocs (const void *ap, const void *bp)
609 const arelent *a = * (const arelent **) ap;
610 const arelent *b = * (const arelent **) bp;
612 if (a->address > b->address)
613 return 1;
614 else if (a->address < b->address)
615 return -1;
617 /* So that associated relocations tied to the same address show up
618 in the correct order, we don't do any further sorting. */
619 if (a > b)
620 return 1;
621 else if (a < b)
622 return -1;
623 else
624 return 0;
627 /* Print an address (VMA) to the output stream in INFO.
628 If SKIP_ZEROES is TRUE, omit leading zeroes. */
630 static void
631 objdump_print_value (bfd_vma vma, struct disassemble_info *info,
632 bfd_boolean skip_zeroes)
634 char buf[30];
635 char *p;
636 struct objdump_disasm_info *aux;
638 aux = (struct objdump_disasm_info *) info->application_data;
639 bfd_sprintf_vma (aux->abfd, buf, vma);
640 if (! skip_zeroes)
641 p = buf;
642 else
644 for (p = buf; *p == '0'; ++p)
646 if (*p == '\0')
647 --p;
649 (*info->fprintf_func) (info->stream, "%s", p);
652 /* Print the name of a symbol. */
654 static void
655 objdump_print_symname (bfd *abfd, struct disassemble_info *info,
656 asymbol *sym)
658 char *alloc;
659 const char *name;
661 alloc = NULL;
662 name = bfd_asymbol_name (sym);
663 if (do_demangle && name[0] != '\0')
665 /* Demangle the name. */
666 alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
667 if (alloc != NULL)
668 name = alloc;
671 if (info != NULL)
672 (*info->fprintf_func) (info->stream, "%s", name);
673 else
674 printf ("%s", name);
676 if (alloc != NULL)
677 free (alloc);
680 /* Locate a symbol given a bfd and a section (from INFO->application_data),
681 and a VMA. If INFO->application_data->require_sec is TRUE, then always
682 require the symbol to be in the section. Returns NULL if there is no
683 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
684 of the symbol in sorted_syms. */
686 static asymbol *
687 find_symbol_for_address (bfd_vma vma,
688 struct disassemble_info *info,
689 long *place)
691 /* @@ Would it speed things up to cache the last two symbols returned,
692 and maybe their address ranges? For many processors, only one memory
693 operand can be present at a time, so the 2-entry cache wouldn't be
694 constantly churned by code doing heavy memory accesses. */
696 /* Indices in `sorted_syms'. */
697 long min = 0;
698 long max = sorted_symcount;
699 long thisplace;
700 struct objdump_disasm_info *aux;
701 bfd *abfd;
702 asection *sec;
703 unsigned int opb;
704 bfd_boolean want_section;
706 if (sorted_symcount < 1)
707 return NULL;
709 aux = (struct objdump_disasm_info *) info->application_data;
710 abfd = aux->abfd;
711 sec = aux->sec;
712 opb = bfd_octets_per_byte (abfd);
714 /* Perform a binary search looking for the closest symbol to the
715 required value. We are searching the range (min, max]. */
716 while (min + 1 < max)
718 asymbol *sym;
720 thisplace = (max + min) / 2;
721 sym = sorted_syms[thisplace];
723 if (bfd_asymbol_value (sym) > vma)
724 max = thisplace;
725 else if (bfd_asymbol_value (sym) < vma)
726 min = thisplace;
727 else
729 min = thisplace;
730 break;
734 /* The symbol we want is now in min, the low end of the range we
735 were searching. If there are several symbols with the same
736 value, we want the first one. */
737 thisplace = min;
738 while (thisplace > 0
739 && (bfd_asymbol_value (sorted_syms[thisplace])
740 == bfd_asymbol_value (sorted_syms[thisplace - 1])))
741 --thisplace;
743 /* Prefer a symbol in the current section if we have multple symbols
744 with the same value, as can occur with overlays or zero size
745 sections. */
746 min = thisplace;
747 while (min < max
748 && (bfd_asymbol_value (sorted_syms[min])
749 == bfd_asymbol_value (sorted_syms[thisplace])))
751 if (sorted_syms[min]->section == sec
752 && info->symbol_is_valid (sorted_syms[min], info))
754 thisplace = min;
756 if (place != NULL)
757 *place = thisplace;
759 return sorted_syms[thisplace];
761 ++min;
764 /* If the file is relocatable, and the symbol could be from this
765 section, prefer a symbol from this section over symbols from
766 others, even if the other symbol's value might be closer.
768 Note that this may be wrong for some symbol references if the
769 sections have overlapping memory ranges, but in that case there's
770 no way to tell what's desired without looking at the relocation
771 table.
773 Also give the target a chance to reject symbols. */
774 want_section = (aux->require_sec
775 || ((abfd->flags & HAS_RELOC) != 0
776 && vma >= bfd_get_section_vma (abfd, sec)
777 && vma < (bfd_get_section_vma (abfd, sec)
778 + bfd_section_size (abfd, sec) / opb)));
779 if ((sorted_syms[thisplace]->section != sec && want_section)
780 || !info->symbol_is_valid (sorted_syms[thisplace], info))
782 long i;
783 long newplace = sorted_symcount;
785 for (i = min - 1; i >= 0; i--)
787 if ((sorted_syms[i]->section == sec || !want_section)
788 && info->symbol_is_valid (sorted_syms[i], info))
790 if (newplace == sorted_symcount)
791 newplace = i;
793 if (bfd_asymbol_value (sorted_syms[i])
794 != bfd_asymbol_value (sorted_syms[newplace]))
795 break;
797 /* Remember this symbol and keep searching until we reach
798 an earlier address. */
799 newplace = i;
803 if (newplace != sorted_symcount)
804 thisplace = newplace;
805 else
807 /* We didn't find a good symbol with a smaller value.
808 Look for one with a larger value. */
809 for (i = thisplace + 1; i < sorted_symcount; i++)
811 if ((sorted_syms[i]->section == sec || !want_section)
812 && info->symbol_is_valid (sorted_syms[i], info))
814 thisplace = i;
815 break;
820 if ((sorted_syms[thisplace]->section != sec && want_section)
821 || !info->symbol_is_valid (sorted_syms[thisplace], info))
822 /* There is no suitable symbol. */
823 return NULL;
826 if (place != NULL)
827 *place = thisplace;
829 return sorted_syms[thisplace];
832 /* Print an address and the offset to the nearest symbol. */
834 static void
835 objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym,
836 bfd_vma vma, struct disassemble_info *info,
837 bfd_boolean skip_zeroes)
839 objdump_print_value (vma, info, skip_zeroes);
841 if (sym == NULL)
843 bfd_vma secaddr;
845 (*info->fprintf_func) (info->stream, " <%s",
846 bfd_get_section_name (abfd, sec));
847 secaddr = bfd_get_section_vma (abfd, sec);
848 if (vma < secaddr)
850 (*info->fprintf_func) (info->stream, "-0x");
851 objdump_print_value (secaddr - vma, info, TRUE);
853 else if (vma > secaddr)
855 (*info->fprintf_func) (info->stream, "+0x");
856 objdump_print_value (vma - secaddr, info, TRUE);
858 (*info->fprintf_func) (info->stream, ">");
860 else
862 (*info->fprintf_func) (info->stream, " <");
863 objdump_print_symname (abfd, info, sym);
864 if (bfd_asymbol_value (sym) > vma)
866 (*info->fprintf_func) (info->stream, "-0x");
867 objdump_print_value (bfd_asymbol_value (sym) - vma, info, TRUE);
869 else if (vma > bfd_asymbol_value (sym))
871 (*info->fprintf_func) (info->stream, "+0x");
872 objdump_print_value (vma - bfd_asymbol_value (sym), info, TRUE);
874 (*info->fprintf_func) (info->stream, ">");
877 if (display_file_offsets)
878 info->fprintf_func (info->stream, _(" (File Offset: 0x%lx)"),
879 (long int)(sec->filepos + (vma - sec->vma)));
882 /* Print an address (VMA), symbolically if possible.
883 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
885 static void
886 objdump_print_addr (bfd_vma vma,
887 struct disassemble_info *info,
888 bfd_boolean skip_zeroes)
890 struct objdump_disasm_info *aux;
891 asymbol *sym = NULL;
892 bfd_boolean skip_find = FALSE;
894 aux = (struct objdump_disasm_info *) info->application_data;
896 if (sorted_symcount < 1)
898 (*info->fprintf_func) (info->stream, "0x");
899 objdump_print_value (vma, info, skip_zeroes);
901 if (display_file_offsets)
902 info->fprintf_func (info->stream, _(" (File Offset: 0x%lx)"),
903 (long int)(aux->sec->filepos + (vma - aux->sec->vma)));
904 return;
907 if (aux->reloc != NULL
908 && aux->reloc->sym_ptr_ptr != NULL
909 && * aux->reloc->sym_ptr_ptr != NULL)
911 sym = * aux->reloc->sym_ptr_ptr;
913 /* Adjust the vma to the reloc. */
914 vma += bfd_asymbol_value (sym);
916 if (bfd_is_und_section (bfd_get_section (sym)))
917 skip_find = TRUE;
920 if (!skip_find)
921 sym = find_symbol_for_address (vma, info, NULL);
923 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
924 skip_zeroes);
927 /* Print VMA to INFO. This function is passed to the disassembler
928 routine. */
930 static void
931 objdump_print_address (bfd_vma vma, struct disassemble_info *info)
933 objdump_print_addr (vma, info, ! prefix_addresses);
936 /* Determine if the given address has a symbol associated with it. */
938 static int
939 objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * info)
941 asymbol * sym;
943 sym = find_symbol_for_address (vma, info, NULL);
945 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
948 /* Hold the last function name and the last line number we displayed
949 in a disassembly. */
951 static char *prev_functionname;
952 static unsigned int prev_line;
954 /* We keep a list of all files that we have seen when doing a
955 disassembly with source, so that we know how much of the file to
956 display. This can be important for inlined functions. */
958 struct print_file_list
960 struct print_file_list *next;
961 const char *filename;
962 const char *modname;
963 const char *map;
964 size_t mapsize;
965 const char **linemap;
966 unsigned maxline;
967 unsigned last_line;
968 int first;
971 static struct print_file_list *print_files;
973 /* The number of preceding context lines to show when we start
974 displaying a file for the first time. */
976 #define SHOW_PRECEDING_CONTEXT_LINES (5)
978 /* Read a complete file into memory. */
980 static const char *
981 slurp_file (const char *fn, size_t *size)
983 #ifdef HAVE_MMAP
984 int ps = getpagesize ();
985 size_t msize;
986 #endif
987 const char *map;
988 struct stat st;
989 int fd = open (fn, O_RDONLY | O_BINARY);
991 if (fd < 0)
992 return NULL;
993 if (fstat (fd, &st) < 0)
994 return NULL;
995 *size = st.st_size;
996 #ifdef HAVE_MMAP
997 msize = (*size + ps - 1) & ~(ps - 1);
998 map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0);
999 if (map != (char *)-1L)
1001 close(fd);
1002 return map;
1004 #endif
1005 map = malloc (*size);
1006 if (!map || (size_t) read (fd, (char *)map, *size) != *size)
1008 free ((void *)map);
1009 map = NULL;
1011 close (fd);
1012 return map;
1015 #define line_map_decrease 5
1017 /* Precompute array of lines for a mapped file. */
1019 static const char **
1020 index_file (const char *map, size_t size, unsigned int *maxline)
1022 const char *p, *lstart, *end;
1023 int chars_per_line = 45; /* First iteration will use 40. */
1024 unsigned int lineno;
1025 const char **linemap = NULL;
1026 unsigned long line_map_size = 0;
1028 lineno = 0;
1029 lstart = map;
1030 end = map + size;
1032 for (p = map; p < end; p++)
1034 if (*p == '\n')
1036 if (p + 1 < end && p[1] == '\r')
1037 p++;
1039 else if (*p == '\r')
1041 if (p + 1 < end && p[1] == '\n')
1042 p++;
1044 else
1045 continue;
1047 /* End of line found. */
1049 if (linemap == NULL || line_map_size < lineno + 1)
1051 unsigned long newsize;
1053 chars_per_line -= line_map_decrease;
1054 if (chars_per_line <= 1)
1055 chars_per_line = 1;
1056 line_map_size = size / chars_per_line + 1;
1057 if (line_map_size < lineno + 1)
1058 line_map_size = lineno + 1;
1059 newsize = line_map_size * sizeof (char *);
1060 linemap = xrealloc (linemap, newsize);
1063 linemap[lineno++] = lstart;
1064 lstart = p + 1;
1067 *maxline = lineno;
1068 return linemap;
1071 /* Tries to open MODNAME, and if successful adds a node to print_files
1072 linked list and returns that node. Returns NULL on failure. */
1074 static struct print_file_list *
1075 try_print_file_open (const char *origname, const char *modname)
1077 struct print_file_list *p;
1079 p = xmalloc (sizeof (struct print_file_list));
1081 p->map = slurp_file (modname, &p->mapsize);
1082 if (p->map == NULL)
1084 free (p);
1085 return NULL;
1088 p->linemap = index_file (p->map, p->mapsize, &p->maxline);
1089 p->last_line = 0;
1090 p->filename = origname;
1091 p->modname = modname;
1092 p->next = print_files;
1093 p->first = 1;
1094 print_files = p;
1095 return p;
1098 /* If the the source file, as described in the symtab, is not found
1099 try to locate it in one of the paths specified with -I
1100 If found, add location to print_files linked list. */
1102 static struct print_file_list *
1103 update_source_path (const char *filename)
1105 struct print_file_list *p;
1106 const char *fname;
1107 int i;
1109 if (filename == NULL)
1110 return NULL;
1112 p = try_print_file_open (filename, filename);
1113 if (p != NULL)
1114 return p;
1116 if (include_path_count == 0)
1117 return NULL;
1119 /* Get the name of the file. */
1120 fname = strrchr (filename, '/');
1121 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1123 /* We could have a mixed forward/back slash case. */
1124 char *backslash = strrchr (filename, '\\');
1125 if (fname == NULL || (backslash != NULL && backslash > fname))
1126 fname = backslash;
1127 if (fname == NULL && filename[0] != '\0' && filename[1] == ':')
1128 fname = filename + 1;
1130 #endif
1131 if (fname == NULL)
1132 fname = filename;
1133 else
1134 ++fname;
1136 /* If file exists under a new path, we need to add it to the list
1137 so that show_line knows about it. */
1138 for (i = 0; i < include_path_count; i++)
1140 char *modname = concat (include_paths[i], "/", fname, (const char *) 0);
1142 p = try_print_file_open (filename, modname);
1143 if (p)
1144 return p;
1146 free (modname);
1149 return NULL;
1152 /* Print a source file line. */
1154 static void
1155 print_line (struct print_file_list *p, unsigned int line)
1157 const char *l;
1158 size_t len;
1160 --line;
1161 if (line >= p->maxline)
1162 return;
1163 l = p->linemap [line];
1164 /* Test fwrite return value to quiet glibc warning. */
1165 len = strcspn (l, "\n\r");
1166 if (len == 0 || fwrite (l, len, 1, stdout) == 1)
1167 putchar ('\n');
1170 /* Print a range of source code lines. */
1172 static void
1173 dump_lines (struct print_file_list *p, unsigned int start, unsigned int end)
1175 if (p->map == NULL)
1176 return;
1177 while (start <= end)
1179 print_line (p, start);
1180 start++;
1184 /* Show the line number, or the source line, in a disassembly
1185 listing. */
1187 static void
1188 show_line (bfd *abfd, asection *section, bfd_vma addr_offset)
1190 const char *filename;
1191 const char *functionname;
1192 unsigned int line;
1194 if (! with_line_numbers && ! with_source_code)
1195 return;
1197 if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
1198 &functionname, &line))
1199 return;
1201 if (filename != NULL && *filename == '\0')
1202 filename = NULL;
1203 if (functionname != NULL && *functionname == '\0')
1204 functionname = NULL;
1206 if (with_line_numbers)
1208 if (functionname != NULL
1209 && (prev_functionname == NULL
1210 || strcmp (functionname, prev_functionname) != 0))
1211 printf ("%s():\n", functionname);
1212 if (line > 0 && line != prev_line)
1213 printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
1216 if (with_source_code
1217 && filename != NULL
1218 && line > 0)
1220 struct print_file_list **pp, *p;
1221 unsigned l;
1223 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1224 if (strcmp ((*pp)->filename, filename) == 0)
1225 break;
1226 p = *pp;
1228 if (p == NULL)
1229 p = update_source_path (filename);
1231 if (p != NULL && line != p->last_line)
1233 if (file_start_context && p->first)
1234 l = 1;
1235 else
1237 l = line - SHOW_PRECEDING_CONTEXT_LINES;
1238 if (l >= line)
1239 l = 1;
1240 if (p->last_line >= l && p->last_line <= line)
1241 l = p->last_line + 1;
1243 dump_lines (p, l, line);
1244 p->last_line = line;
1245 p->first = 0;
1249 if (functionname != NULL
1250 && (prev_functionname == NULL
1251 || strcmp (functionname, prev_functionname) != 0))
1253 if (prev_functionname != NULL)
1254 free (prev_functionname);
1255 prev_functionname = xmalloc (strlen (functionname) + 1);
1256 strcpy (prev_functionname, functionname);
1259 if (line > 0 && line != prev_line)
1260 prev_line = line;
1263 /* Pseudo FILE object for strings. */
1264 typedef struct
1266 char *buffer;
1267 size_t pos;
1268 size_t alloc;
1269 } SFILE;
1271 /* sprintf to a "stream". */
1273 static int ATTRIBUTE_PRINTF_2
1274 objdump_sprintf (SFILE *f, const char *format, ...)
1276 size_t n;
1277 va_list args;
1279 while (1)
1281 size_t space = f->alloc - f->pos;
1283 va_start (args, format);
1284 n = vsnprintf (f->buffer + f->pos, space, format, args);
1285 va_end (args);
1287 if (space > n)
1288 break;
1290 f->alloc = (f->alloc + n) * 2;
1291 f->buffer = xrealloc (f->buffer, f->alloc);
1293 f->pos += n;
1295 return n;
1298 /* Returns TRUE if the specified section should be dumped. */
1300 static bfd_boolean
1301 process_section_p (asection * section)
1303 size_t i;
1305 if (only == NULL)
1306 return TRUE;
1308 for (i = 0; i < only_used; i++)
1309 if (strcmp (only [i], section->name) == 0)
1310 return TRUE;
1312 return FALSE;
1316 /* The number of zeroes we want to see before we start skipping them.
1317 The number is arbitrarily chosen. */
1319 #define DEFAULT_SKIP_ZEROES 8
1321 /* The number of zeroes to skip at the end of a section. If the
1322 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1323 SKIP_ZEROES, they will be disassembled. If there are fewer than
1324 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1325 attempt to avoid disassembling zeroes inserted by section
1326 alignment. */
1328 #define DEFAULT_SKIP_ZEROES_AT_END 3
1330 /* Disassemble some data in memory between given values. */
1332 static void
1333 disassemble_bytes (struct disassemble_info * info,
1334 disassembler_ftype disassemble_fn,
1335 bfd_boolean insns,
1336 bfd_byte * data,
1337 bfd_vma start_offset,
1338 bfd_vma stop_offset,
1339 bfd_vma rel_offset,
1340 arelent *** relppp,
1341 arelent ** relppend)
1343 struct objdump_disasm_info *aux;
1344 asection *section;
1345 int octets_per_line;
1346 bfd_boolean done_dot;
1347 int skip_addr_chars;
1348 bfd_vma addr_offset;
1349 unsigned int opb = info->octets_per_byte;
1350 unsigned int skip_zeroes = info->skip_zeroes;
1351 unsigned int skip_zeroes_at_end = info->skip_zeroes_at_end;
1352 int octets = opb;
1353 SFILE sfile;
1355 aux = (struct objdump_disasm_info *) info->application_data;
1356 section = aux->sec;
1358 sfile.alloc = 120;
1359 sfile.buffer = xmalloc (sfile.alloc);
1360 sfile.pos = 0;
1362 if (insns)
1363 octets_per_line = 4;
1364 else
1365 octets_per_line = 16;
1367 /* Figure out how many characters to skip at the start of an
1368 address, to make the disassembly look nicer. We discard leading
1369 zeroes in chunks of 4, ensuring that there is always a leading
1370 zero remaining. */
1371 skip_addr_chars = 0;
1372 if (! prefix_addresses)
1374 char buf[30];
1375 char *s;
1377 bfd_sprintf_vma
1378 (aux->abfd, buf,
1379 (section->vma
1380 + bfd_section_size (section->owner, section) / opb));
1381 s = buf;
1382 while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0'
1383 && s[4] == '0')
1385 skip_addr_chars += 4;
1386 s += 4;
1390 info->insn_info_valid = 0;
1392 done_dot = FALSE;
1393 addr_offset = start_offset;
1394 while (addr_offset < stop_offset)
1396 bfd_vma z;
1397 bfd_boolean need_nl = FALSE;
1398 int previous_octets;
1400 /* Remember the length of the previous instruction. */
1401 previous_octets = octets;
1402 octets = 0;
1404 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1405 print `...'. */
1406 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1407 if (data[z] != 0)
1408 break;
1409 if (! disassemble_zeroes
1410 && (info->insn_info_valid == 0
1411 || info->branch_delay_insns == 0)
1412 && (z - addr_offset * opb >= skip_zeroes
1413 || (z == stop_offset * opb &&
1414 z - addr_offset * opb < skip_zeroes_at_end)))
1416 /* If there are more nonzero octets to follow, we only skip
1417 zeroes in multiples of 4, to try to avoid running over
1418 the start of an instruction which happens to start with
1419 zero. */
1420 if (z != stop_offset * opb)
1421 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1423 octets = z - addr_offset * opb;
1425 /* If we are going to display more data, and we are displaying
1426 file offsets, then tell the user how many zeroes we skip
1427 and the file offset from where we resume dumping. */
1428 if (display_file_offsets && ((addr_offset + (octets / opb)) < stop_offset))
1429 printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
1430 octets / opb,
1431 (long int)(section->filepos + (addr_offset + (octets / opb))));
1432 else
1433 printf ("\t...\n");
1435 else
1437 char buf[50];
1438 int bpc = 0;
1439 int pb = 0;
1441 done_dot = FALSE;
1443 if (with_line_numbers || with_source_code)
1444 show_line (aux->abfd, section, addr_offset);
1446 if (! prefix_addresses)
1448 char *s;
1450 bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset);
1451 for (s = buf + skip_addr_chars; *s == '0'; s++)
1452 *s = ' ';
1453 if (*s == '\0')
1454 *--s = '0';
1455 printf ("%s:\t", buf + skip_addr_chars);
1457 else
1459 aux->require_sec = TRUE;
1460 objdump_print_address (section->vma + addr_offset, info);
1461 aux->require_sec = FALSE;
1462 putchar (' ');
1465 if (insns)
1467 sfile.pos = 0;
1468 info->fprintf_func = (fprintf_ftype) objdump_sprintf;
1469 info->stream = &sfile;
1470 info->bytes_per_line = 0;
1471 info->bytes_per_chunk = 0;
1472 info->flags = 0;
1474 if (info->disassembler_needs_relocs
1475 && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0
1476 && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0
1477 && *relppp < relppend)
1479 bfd_signed_vma distance_to_rel;
1481 distance_to_rel = (**relppp)->address
1482 - (rel_offset + addr_offset);
1484 /* Check to see if the current reloc is associated with
1485 the instruction that we are about to disassemble. */
1486 if (distance_to_rel == 0
1487 /* FIXME: This is wrong. We are trying to catch
1488 relocs that are addressed part way through the
1489 current instruction, as might happen with a packed
1490 VLIW instruction. Unfortunately we do not know the
1491 length of the current instruction since we have not
1492 disassembled it yet. Instead we take a guess based
1493 upon the length of the previous instruction. The
1494 proper solution is to have a new target-specific
1495 disassembler function which just returns the length
1496 of an instruction at a given address without trying
1497 to display its disassembly. */
1498 || (distance_to_rel > 0
1499 && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
1501 info->flags = INSN_HAS_RELOC;
1502 aux->reloc = **relppp;
1504 else
1505 aux->reloc = NULL;
1508 octets = (*disassemble_fn) (section->vma + addr_offset, info);
1509 info->fprintf_func = (fprintf_ftype) fprintf;
1510 info->stream = stdout;
1511 if (info->bytes_per_line != 0)
1512 octets_per_line = info->bytes_per_line;
1513 if (octets < 0)
1515 if (sfile.pos)
1516 printf ("%s\n", sfile.buffer);
1517 break;
1520 else
1522 bfd_vma j;
1524 octets = octets_per_line;
1525 if (addr_offset + octets / opb > stop_offset)
1526 octets = (stop_offset - addr_offset) * opb;
1528 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1530 if (ISPRINT (data[j]))
1531 buf[j - addr_offset * opb] = data[j];
1532 else
1533 buf[j - addr_offset * opb] = '.';
1535 buf[j - addr_offset * opb] = '\0';
1538 if (prefix_addresses
1539 ? show_raw_insn > 0
1540 : show_raw_insn >= 0)
1542 bfd_vma j;
1544 /* If ! prefix_addresses and ! wide_output, we print
1545 octets_per_line octets per line. */
1546 pb = octets;
1547 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1548 pb = octets_per_line;
1550 if (info->bytes_per_chunk)
1551 bpc = info->bytes_per_chunk;
1552 else
1553 bpc = 1;
1555 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1557 int k;
1559 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1561 for (k = bpc - 1; k >= 0; k--)
1562 printf ("%02x", (unsigned) data[j + k]);
1563 putchar (' ');
1565 else
1567 for (k = 0; k < bpc; k++)
1568 printf ("%02x", (unsigned) data[j + k]);
1569 putchar (' ');
1573 for (; pb < octets_per_line; pb += bpc)
1575 int k;
1577 for (k = 0; k < bpc; k++)
1578 printf (" ");
1579 putchar (' ');
1582 /* Separate raw data from instruction by extra space. */
1583 if (insns)
1584 putchar ('\t');
1585 else
1586 printf (" ");
1589 if (! insns)
1590 printf ("%s", buf);
1591 else if (sfile.pos)
1592 printf ("%s", sfile.buffer);
1594 if (prefix_addresses
1595 ? show_raw_insn > 0
1596 : show_raw_insn >= 0)
1598 while (pb < octets)
1600 bfd_vma j;
1601 char *s;
1603 putchar ('\n');
1604 j = addr_offset * opb + pb;
1606 bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb);
1607 for (s = buf + skip_addr_chars; *s == '0'; s++)
1608 *s = ' ';
1609 if (*s == '\0')
1610 *--s = '0';
1611 printf ("%s:\t", buf + skip_addr_chars);
1613 pb += octets_per_line;
1614 if (pb > octets)
1615 pb = octets;
1616 for (; j < addr_offset * opb + pb; j += bpc)
1618 int k;
1620 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1622 for (k = bpc - 1; k >= 0; k--)
1623 printf ("%02x", (unsigned) data[j + k]);
1624 putchar (' ');
1626 else
1628 for (k = 0; k < bpc; k++)
1629 printf ("%02x", (unsigned) data[j + k]);
1630 putchar (' ');
1636 if (!wide_output)
1637 putchar ('\n');
1638 else
1639 need_nl = TRUE;
1642 while ((*relppp) < relppend
1643 && (**relppp)->address < rel_offset + addr_offset + octets / opb)
1645 if (dump_reloc_info || dump_dynamic_reloc_info)
1647 arelent *q;
1649 q = **relppp;
1651 if (wide_output)
1652 putchar ('\t');
1653 else
1654 printf ("\t\t\t");
1656 objdump_print_value (section->vma - rel_offset + q->address,
1657 info, TRUE);
1659 if (q->howto == NULL)
1660 printf (": *unknown*\t");
1661 else if (q->howto->name)
1662 printf (": %s\t", q->howto->name);
1663 else
1664 printf (": %d\t", q->howto->type);
1666 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1667 printf ("*unknown*");
1668 else
1670 const char *sym_name;
1672 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1673 if (sym_name != NULL && *sym_name != '\0')
1674 objdump_print_symname (aux->abfd, info, *q->sym_ptr_ptr);
1675 else
1677 asection *sym_sec;
1679 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1680 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1681 if (sym_name == NULL || *sym_name == '\0')
1682 sym_name = "*unknown*";
1683 printf ("%s", sym_name);
1687 if (q->addend)
1689 printf ("+0x");
1690 objdump_print_value (q->addend, info, TRUE);
1693 printf ("\n");
1694 need_nl = FALSE;
1696 ++(*relppp);
1699 if (need_nl)
1700 printf ("\n");
1702 addr_offset += octets / opb;
1705 free (sfile.buffer);
1708 static void
1709 disassemble_section (bfd *abfd, asection *section, void *info)
1711 struct disassemble_info * pinfo = (struct disassemble_info *) info;
1712 struct objdump_disasm_info * paux;
1713 unsigned int opb = pinfo->octets_per_byte;
1714 bfd_byte * data = NULL;
1715 bfd_size_type datasize = 0;
1716 arelent ** rel_pp = NULL;
1717 arelent ** rel_ppstart = NULL;
1718 arelent ** rel_ppend;
1719 unsigned long stop_offset;
1720 asymbol * sym = NULL;
1721 long place = 0;
1722 long rel_count;
1723 bfd_vma rel_offset;
1724 unsigned long addr_offset;
1726 /* Sections that do not contain machine
1727 code are not normally disassembled. */
1728 if (! disassemble_all
1729 && only == NULL
1730 && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
1731 != (SEC_CODE | SEC_HAS_CONTENTS)))
1732 return;
1734 if (! process_section_p (section))
1735 return;
1737 datasize = bfd_get_section_size (section);
1738 if (datasize == 0)
1739 return;
1741 /* Decide which set of relocs to use. Load them if necessary. */
1742 paux = (struct objdump_disasm_info *) pinfo->application_data;
1743 if (paux->dynrelbuf)
1745 rel_pp = paux->dynrelbuf;
1746 rel_count = paux->dynrelcount;
1747 /* Dynamic reloc addresses are absolute, non-dynamic are section
1748 relative. REL_OFFSET specifies the reloc address corresponding
1749 to the start of this section. */
1750 rel_offset = section->vma;
1752 else
1754 rel_count = 0;
1755 rel_pp = NULL;
1756 rel_offset = 0;
1758 if ((section->flags & SEC_RELOC) != 0
1759 && (dump_reloc_info || pinfo->disassembler_needs_relocs))
1761 long relsize;
1763 relsize = bfd_get_reloc_upper_bound (abfd, section);
1764 if (relsize < 0)
1765 bfd_fatal (bfd_get_filename (abfd));
1767 if (relsize > 0)
1769 rel_ppstart = rel_pp = xmalloc (relsize);
1770 rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms);
1771 if (rel_count < 0)
1772 bfd_fatal (bfd_get_filename (abfd));
1774 /* Sort the relocs by address. */
1775 qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs);
1780 rel_ppend = rel_pp + rel_count;
1782 data = xmalloc (datasize);
1784 bfd_get_section_contents (abfd, section, data, 0, datasize);
1786 paux->sec = section;
1787 pinfo->buffer = data;
1788 pinfo->buffer_vma = section->vma;
1789 pinfo->buffer_length = datasize;
1790 pinfo->section = section;
1792 if (start_address == (bfd_vma) -1
1793 || start_address < pinfo->buffer_vma)
1794 addr_offset = 0;
1795 else
1796 addr_offset = start_address - pinfo->buffer_vma;
1798 if (stop_address == (bfd_vma) -1)
1799 stop_offset = datasize / opb;
1800 else
1802 if (stop_address < pinfo->buffer_vma)
1803 stop_offset = 0;
1804 else
1805 stop_offset = stop_address - pinfo->buffer_vma;
1806 if (stop_offset > pinfo->buffer_length / opb)
1807 stop_offset = pinfo->buffer_length / opb;
1810 /* Skip over the relocs belonging to addresses below the
1811 start address. */
1812 while (rel_pp < rel_ppend
1813 && (*rel_pp)->address < rel_offset + addr_offset)
1814 ++rel_pp;
1816 if (addr_offset < stop_offset)
1817 printf (_("\nDisassembly of section %s:\n"), section->name);
1819 /* Find the nearest symbol forwards from our current position. */
1820 paux->require_sec = TRUE;
1821 sym = find_symbol_for_address (section->vma + addr_offset, info, &place);
1822 paux->require_sec = FALSE;
1824 /* Disassemble a block of instructions up to the address associated with
1825 the symbol we have just found. Then print the symbol and find the
1826 next symbol on. Repeat until we have disassembled the entire section
1827 or we have reached the end of the address range we are interested in. */
1828 while (addr_offset < stop_offset)
1830 bfd_vma addr;
1831 asymbol *nextsym;
1832 unsigned long nextstop_offset;
1833 bfd_boolean insns;
1835 addr = section->vma + addr_offset;
1837 if (sym != NULL && bfd_asymbol_value (sym) <= addr)
1839 int x;
1841 for (x = place;
1842 (x < sorted_symcount
1843 && (bfd_asymbol_value (sorted_syms[x]) <= addr));
1844 ++x)
1845 continue;
1847 pinfo->symbols = sorted_syms + place;
1848 pinfo->num_symbols = x - place;
1849 pinfo->symtab_pos = place;
1851 else
1853 pinfo->symbols = NULL;
1854 pinfo->num_symbols = 0;
1855 pinfo->symtab_pos = -1;
1858 if (! prefix_addresses)
1860 pinfo->fprintf_func (pinfo->stream, "\n");
1861 objdump_print_addr_with_sym (abfd, section, sym, addr,
1862 pinfo, FALSE);
1863 pinfo->fprintf_func (pinfo->stream, ":\n");
1866 if (sym != NULL && bfd_asymbol_value (sym) > addr)
1867 nextsym = sym;
1868 else if (sym == NULL)
1869 nextsym = NULL;
1870 else
1872 #define is_valid_next_sym(SYM) \
1873 ((SYM)->section == section \
1874 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
1875 && pinfo->symbol_is_valid (SYM, pinfo))
1877 /* Search forward for the next appropriate symbol in
1878 SECTION. Note that all the symbols are sorted
1879 together into one big array, and that some sections
1880 may have overlapping addresses. */
1881 while (place < sorted_symcount
1882 && ! is_valid_next_sym (sorted_syms [place]))
1883 ++place;
1885 if (place >= sorted_symcount)
1886 nextsym = NULL;
1887 else
1888 nextsym = sorted_syms[place];
1891 if (sym != NULL && bfd_asymbol_value (sym) > addr)
1892 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
1893 else if (nextsym == NULL)
1894 nextstop_offset = stop_offset;
1895 else
1896 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
1898 if (nextstop_offset > stop_offset)
1899 nextstop_offset = stop_offset;
1901 /* If a symbol is explicitly marked as being an object
1902 rather than a function, just dump the bytes without
1903 disassembling them. */
1904 if (disassemble_all
1905 || sym == NULL
1906 || bfd_asymbol_value (sym) > addr
1907 || ((sym->flags & BSF_OBJECT) == 0
1908 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
1909 == NULL)
1910 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
1911 == NULL))
1912 || (sym->flags & BSF_FUNCTION) != 0)
1913 insns = TRUE;
1914 else
1915 insns = FALSE;
1917 disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
1918 addr_offset, nextstop_offset,
1919 rel_offset, &rel_pp, rel_ppend);
1921 addr_offset = nextstop_offset;
1922 sym = nextsym;
1925 free (data);
1927 if (rel_ppstart != NULL)
1928 free (rel_ppstart);
1931 /* Disassemble the contents of an object file. */
1933 static void
1934 disassemble_data (bfd *abfd)
1936 struct disassemble_info disasm_info;
1937 struct objdump_disasm_info aux;
1938 long i;
1940 print_files = NULL;
1941 prev_functionname = NULL;
1942 prev_line = -1;
1944 /* We make a copy of syms to sort. We don't want to sort syms
1945 because that will screw up the relocs. */
1946 sorted_symcount = symcount ? symcount : dynsymcount;
1947 sorted_syms = xmalloc ((sorted_symcount + synthcount) * sizeof (asymbol *));
1948 memcpy (sorted_syms, symcount ? syms : dynsyms,
1949 sorted_symcount * sizeof (asymbol *));
1951 sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
1953 for (i = 0; i < synthcount; ++i)
1955 sorted_syms[sorted_symcount] = synthsyms + i;
1956 ++sorted_symcount;
1959 /* Sort the symbols into section and symbol order. */
1960 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
1962 init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
1964 disasm_info.application_data = (void *) &aux;
1965 aux.abfd = abfd;
1966 aux.require_sec = FALSE;
1967 aux.dynrelbuf = NULL;
1968 aux.dynrelcount = 0;
1969 aux.reloc = NULL;
1971 disasm_info.print_address_func = objdump_print_address;
1972 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
1974 if (machine != NULL)
1976 const bfd_arch_info_type *info = bfd_scan_arch (machine);
1978 if (info == NULL)
1979 fatal (_("Can't use supplied machine %s"), machine);
1981 abfd->arch_info = info;
1984 if (endian != BFD_ENDIAN_UNKNOWN)
1986 struct bfd_target *xvec;
1988 xvec = xmalloc (sizeof (struct bfd_target));
1989 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
1990 xvec->byteorder = endian;
1991 abfd->xvec = xvec;
1994 /* Use libopcodes to locate a suitable disassembler. */
1995 aux.disassemble_fn = disassembler (abfd);
1996 if (!aux.disassemble_fn)
1998 non_fatal (_("Can't disassemble for architecture %s\n"),
1999 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
2000 exit_status = 1;
2001 return;
2004 disasm_info.flavour = bfd_get_flavour (abfd);
2005 disasm_info.arch = bfd_get_arch (abfd);
2006 disasm_info.mach = bfd_get_mach (abfd);
2007 disasm_info.disassembler_options = disassembler_options;
2008 disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
2009 disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
2010 disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
2011 disasm_info.disassembler_needs_relocs = FALSE;
2013 if (bfd_big_endian (abfd))
2014 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
2015 else if (bfd_little_endian (abfd))
2016 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
2017 else
2018 /* ??? Aborting here seems too drastic. We could default to big or little
2019 instead. */
2020 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
2022 /* Allow the target to customize the info structure. */
2023 disassemble_init_for_target (& disasm_info);
2025 /* Pre-load the dynamic relocs if we are going
2026 to be dumping them along with the disassembly. */
2027 if (dump_dynamic_reloc_info)
2029 long relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2031 if (relsize < 0)
2032 bfd_fatal (bfd_get_filename (abfd));
2034 if (relsize > 0)
2036 aux.dynrelbuf = xmalloc (relsize);
2037 aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
2038 aux.dynrelbuf,
2039 dynsyms);
2040 if (aux.dynrelcount < 0)
2041 bfd_fatal (bfd_get_filename (abfd));
2043 /* Sort the relocs by address. */
2044 qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
2045 compare_relocs);
2048 disasm_info.symtab = sorted_syms;
2049 disasm_info.symtab_size = sorted_symcount;
2051 bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
2053 if (aux.dynrelbuf != NULL)
2054 free (aux.dynrelbuf);
2055 free (sorted_syms);
2059 load_debug_section (enum dwarf_section_display_enum debug, void *file)
2061 struct dwarf_section *section = &debug_displays [debug].section;
2062 bfd *abfd = file;
2063 asection *sec;
2064 bfd_boolean ret;
2065 int section_is_compressed;
2067 /* If it is already loaded, do nothing. */
2068 if (section->start != NULL)
2069 return 1;
2071 /* Locate the debug section. */
2072 sec = bfd_get_section_by_name (abfd, section->uncompressed_name);
2073 if (sec != NULL)
2074 section->name = section->uncompressed_name;
2075 else
2077 sec = bfd_get_section_by_name (abfd, section->compressed_name);
2078 if (sec != NULL)
2079 section->name = section->compressed_name;
2081 if (sec == NULL)
2082 return 0;
2083 section_is_compressed = section->name == section->compressed_name;
2085 /* Compute a bias to be added to offsets found within the DWARF debug
2086 information. These offsets are meant to be relative to the start of
2087 the dwarf section, and hence the bias should be 0. For MACH-O however
2088 a dwarf section is really just a region of a much larger section and so
2089 the bias is the address of the start of that area within the larger
2090 section. This test is important for PE and COFF based targets which
2091 use DWARF debug information, since unlike ELF, they do not allow the
2092 dwarf sections to be placed at address 0. */
2093 if (bfd_get_flavour (abfd) == bfd_target_mach_o_flavour)
2094 section->address = bfd_get_section_vma (abfd, sec);
2095 else
2096 section->address = 0;
2098 section->size = bfd_get_section_size (sec);
2099 section->start = xmalloc (section->size);
2101 if (is_relocatable && debug_displays [debug].relocate)
2102 ret = bfd_simple_get_relocated_section_contents (abfd,
2103 sec,
2104 section->start,
2105 syms) != NULL;
2106 else
2107 ret = bfd_get_section_contents (abfd, sec, section->start, 0,
2108 section->size);
2110 if (! ret)
2112 free_debug_section (debug);
2113 printf (_("\nCan't get contents for section '%s'.\n"),
2114 section->name);
2115 return 0;
2118 if (section_is_compressed)
2120 bfd_size_type size = section->size;
2121 if (! bfd_uncompress_section_contents (&section->start, &size))
2123 free_debug_section (debug);
2124 printf (_("\nCan't uncompress section '%s'.\n"), section->name);
2125 return 0;
2127 section->size = size;
2130 return ret;
2133 void
2134 free_debug_section (enum dwarf_section_display_enum debug)
2136 struct dwarf_section *section = &debug_displays [debug].section;
2138 if (section->start == NULL)
2139 return;
2141 free ((char *) section->start);
2142 section->start = NULL;
2143 section->address = 0;
2144 section->size = 0;
2147 static void
2148 dump_dwarf_section (bfd *abfd, asection *section,
2149 void *arg ATTRIBUTE_UNUSED)
2151 const char *name = bfd_get_section_name (abfd, section);
2152 const char *match;
2153 enum dwarf_section_display_enum i;
2155 if (CONST_STRNEQ (name, ".gnu.linkonce.wi."))
2156 match = ".debug_info";
2157 else
2158 match = name;
2160 for (i = 0; i < max; i++)
2161 if (strcmp (debug_displays [i].section.uncompressed_name, match) == 0
2162 || strcmp (debug_displays [i].section.compressed_name, match) == 0)
2164 if (!debug_displays [i].eh_frame)
2166 struct dwarf_section *sec = &debug_displays [i].section;
2168 if (load_debug_section (i, abfd))
2170 debug_displays [i].display (sec, abfd);
2172 if (i != info && i != abbrev)
2173 free_debug_section (i);
2176 break;
2180 static const char *mach_o_uncompressed_dwarf_sections [] = {
2181 "LC_SEGMENT.__DWARFA.__debug_abbrev", /* .debug_abbrev */
2182 "LC_SEGMENT.__DWARFA.__debug_aranges", /* .debug_aranges */
2183 "LC_SEGMENT.__DWARFA.__debug_frame", /* .debug_frame */
2184 "LC_SEGMENT.__DWARFA.__debug_info", /* .debug_info */
2185 "LC_SEGMENT.__DWARFA.__debug_line", /* .debug_line */
2186 "LC_SEGMENT.__DWARFA.__debug_pubnames", /* .debug_pubnames */
2187 ".eh_frame", /* .eh_frame */
2188 "LC_SEGMENT.__DWARFA.__debug_macinfo", /* .debug_macinfo */
2189 "LC_SEGMENT.__DWARFA.__debug_str", /* .debug_str */
2190 "LC_SEGMENT.__DWARFA.__debug_loc", /* .debug_loc */
2191 "LC_SEGMENT.__DWARFA.__debug_pubtypes", /* .debug_pubtypes */
2192 "LC_SEGMENT.__DWARFA.__debug_ranges", /* .debug_ranges */
2193 "LC_SEGMENT.__DWARFA.__debug_static_func", /* .debug_static_func */
2194 "LC_SEGMENT.__DWARFA.__debug_static_vars", /* .debug_static_vars */
2195 "LC_SEGMENT.__DWARFA.__debug_types", /* .debug_types */
2196 "LC_SEGMENT.__DWARFA.__debug_weaknames" /* .debug_weaknames */
2199 static const char *mach_o_compressed_dwarf_sections [] = {
2200 "LC_SEGMENT.__DWARFA.__zdebug_abbrev", /* .zdebug_abbrev */
2201 "LC_SEGMENT.__DWARFA.__zdebug_aranges", /* .zdebug_aranges */
2202 "LC_SEGMENT.__DWARFA.__zdebug_frame", /* .zdebug_frame */
2203 "LC_SEGMENT.__DWARFA.__zdebug_info", /* .zdebug_info */
2204 "LC_SEGMENT.__DWARFA.__zdebug_line", /* .zdebug_line */
2205 "LC_SEGMENT.__DWARFA.__zdebug_pubnames", /* .zdebug_pubnames */
2206 ".eh_frame", /* .eh_frame */
2207 "LC_SEGMENT.__DWARFA.__zdebug_macinfo", /* .zdebug_macinfo */
2208 "LC_SEGMENT.__DWARFA.__zdebug_str", /* .zdebug_str */
2209 "LC_SEGMENT.__DWARFA.__zdebug_loc", /* .zdebug_loc */
2210 "LC_SEGMENT.__DWARFA.__zdebug_pubtypes", /* .zdebug_pubtypes */
2211 "LC_SEGMENT.__DWARFA.__zdebug_ranges", /* .zdebug_ranges */
2212 "LC_SEGMENT.__DWARFA.__zdebug_static_func", /* .zdebug_static_func */
2213 "LC_SEGMENT.__DWARFA.__zdebug_static_vars", /* .zdebug_static_vars */
2214 "LC_SEGMENT.__DWARFA.__zdebug_types", /* .zdebug_types */
2215 "LC_SEGMENT.__DWARFA.__zdebug_weaknames" /* .zdebug_weaknames */
2218 static const char *generic_uncompressed_dwarf_sections [max];
2219 static const char *generic_compressed_dwarf_sections [max];
2221 static void
2222 check_mach_o_dwarf (bfd *abfd)
2224 static enum bfd_flavour old_flavour = bfd_target_unknown_flavour;
2225 enum bfd_flavour current_flavour = bfd_get_flavour (abfd);
2226 enum dwarf_section_display_enum i;
2228 if (generic_uncompressed_dwarf_sections [0] == NULL)
2229 for (i = 0; i < max; i++)
2231 generic_uncompressed_dwarf_sections [i]
2232 = debug_displays[i].section.uncompressed_name;
2233 generic_compressed_dwarf_sections [i]
2234 = debug_displays[i].section.compressed_name;
2237 if (old_flavour != current_flavour)
2239 if (current_flavour == bfd_target_mach_o_flavour)
2240 for (i = 0; i < max; i++)
2242 debug_displays[i].section.uncompressed_name
2243 = mach_o_uncompressed_dwarf_sections [i];
2244 debug_displays[i].section.compressed_name
2245 = mach_o_compressed_dwarf_sections [i];
2247 else if (old_flavour == bfd_target_mach_o_flavour)
2248 for (i = 0; i < max; i++)
2250 debug_displays[i].section.uncompressed_name
2251 = generic_uncompressed_dwarf_sections [i];
2252 debug_displays[i].section.compressed_name
2253 = generic_compressed_dwarf_sections [i];
2256 old_flavour = current_flavour;
2260 /* Dump the dwarf debugging information. */
2262 static void
2263 dump_dwarf (bfd *abfd)
2265 is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2267 /* FIXME: bfd_get_arch_size may return -1. We assume that 64bit
2268 targets will return 64. */
2269 eh_addr_size = bfd_get_arch_size (abfd) == 64 ? 8 : 4;
2271 if (bfd_big_endian (abfd))
2272 byte_get = byte_get_big_endian;
2273 else if (bfd_little_endian (abfd))
2274 byte_get = byte_get_little_endian;
2275 else
2276 abort ();
2278 check_mach_o_dwarf (abfd);
2280 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2282 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2283 init_dwarf_regnames (bed->elf_machine_code);
2286 bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
2288 free_debug_memory ();
2291 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
2292 it. Return NULL on failure. */
2294 static char *
2295 read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
2297 asection *stabsect;
2298 bfd_size_type size;
2299 char *contents;
2301 stabsect = bfd_get_section_by_name (abfd, sect_name);
2302 if (stabsect == NULL)
2304 printf (_("No %s section present\n\n"), sect_name);
2305 return FALSE;
2308 size = bfd_section_size (abfd, stabsect);
2309 contents = xmalloc (size);
2311 if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
2313 non_fatal (_("Reading %s section of %s failed: %s"),
2314 sect_name, bfd_get_filename (abfd),
2315 bfd_errmsg (bfd_get_error ()));
2316 free (contents);
2317 exit_status = 1;
2318 return NULL;
2321 *size_ptr = size;
2323 return contents;
2326 /* Stabs entries use a 12 byte format:
2327 4 byte string table index
2328 1 byte stab type
2329 1 byte stab other field
2330 2 byte stab desc field
2331 4 byte stab value
2332 FIXME: This will have to change for a 64 bit object format. */
2334 #define STRDXOFF (0)
2335 #define TYPEOFF (4)
2336 #define OTHEROFF (5)
2337 #define DESCOFF (6)
2338 #define VALOFF (8)
2339 #define STABSIZE (12)
2341 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
2342 using string table section STRSECT_NAME (in `strtab'). */
2344 static void
2345 print_section_stabs (bfd *abfd,
2346 const char *stabsect_name,
2347 unsigned *string_offset_ptr)
2349 int i;
2350 unsigned file_string_table_offset = 0;
2351 unsigned next_file_string_table_offset = *string_offset_ptr;
2352 bfd_byte *stabp, *stabs_end;
2354 stabp = stabs;
2355 stabs_end = stabp + stab_size;
2357 printf (_("Contents of %s section:\n\n"), stabsect_name);
2358 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
2360 /* Loop through all symbols and print them.
2362 We start the index at -1 because there is a dummy symbol on
2363 the front of stabs-in-{coff,elf} sections that supplies sizes. */
2364 for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
2366 const char *name;
2367 unsigned long strx;
2368 unsigned char type, other;
2369 unsigned short desc;
2370 bfd_vma value;
2372 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
2373 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
2374 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
2375 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
2376 value = bfd_h_get_32 (abfd, stabp + VALOFF);
2378 printf ("\n%-6d ", i);
2379 /* Either print the stab name, or, if unnamed, print its number
2380 again (makes consistent formatting for tools like awk). */
2381 name = bfd_get_stab_name (type);
2382 if (name != NULL)
2383 printf ("%-6s", name);
2384 else if (type == N_UNDF)
2385 printf ("HdrSym");
2386 else
2387 printf ("%-6d", type);
2388 printf (" %-6d %-6d ", other, desc);
2389 bfd_printf_vma (abfd, value);
2390 printf (" %-6lu", strx);
2392 /* Symbols with type == 0 (N_UNDF) specify the length of the
2393 string table associated with this file. We use that info
2394 to know how to relocate the *next* file's string table indices. */
2395 if (type == N_UNDF)
2397 file_string_table_offset = next_file_string_table_offset;
2398 next_file_string_table_offset += value;
2400 else
2402 /* Using the (possibly updated) string table offset, print the
2403 string (if any) associated with this symbol. */
2404 if ((strx + file_string_table_offset) < stabstr_size)
2405 printf (" %s", &strtab[strx + file_string_table_offset]);
2406 else
2407 printf (" *");
2410 printf ("\n\n");
2411 *string_offset_ptr = next_file_string_table_offset;
2414 typedef struct
2416 const char * section_name;
2417 const char * string_section_name;
2418 unsigned string_offset;
2420 stab_section_names;
2422 static void
2423 find_stabs_section (bfd *abfd, asection *section, void *names)
2425 int len;
2426 stab_section_names * sought = (stab_section_names *) names;
2428 /* Check for section names for which stabsect_name is a prefix, to
2429 handle .stab.N, etc. */
2430 len = strlen (sought->section_name);
2432 /* If the prefix matches, and the files section name ends with a
2433 nul or a digit, then we match. I.e., we want either an exact
2434 match or a section followed by a number. */
2435 if (strncmp (sought->section_name, section->name, len) == 0
2436 && (section->name[len] == 0
2437 || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
2439 if (strtab == NULL)
2440 strtab = read_section_stabs (abfd, sought->string_section_name,
2441 &stabstr_size);
2443 if (strtab)
2445 stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
2446 &stab_size);
2447 if (stabs)
2448 print_section_stabs (abfd, section->name, &sought->string_offset);
2453 static void
2454 dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name)
2456 stab_section_names s;
2458 s.section_name = stabsect_name;
2459 s.string_section_name = strsect_name;
2460 s.string_offset = 0;
2462 bfd_map_over_sections (abfd, find_stabs_section, & s);
2464 free (strtab);
2465 strtab = NULL;
2468 /* Dump the any sections containing stabs debugging information. */
2470 static void
2471 dump_stabs (bfd *abfd)
2473 dump_stabs_section (abfd, ".stab", ".stabstr");
2474 dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr");
2475 dump_stabs_section (abfd, ".stab.index", ".stab.indexstr");
2476 dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
2479 static void
2480 dump_bfd_header (bfd *abfd)
2482 char *comma = "";
2484 printf (_("architecture: %s, "),
2485 bfd_printable_arch_mach (bfd_get_arch (abfd),
2486 bfd_get_mach (abfd)));
2487 printf (_("flags 0x%08x:\n"), abfd->flags);
2489 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2490 PF (HAS_RELOC, "HAS_RELOC");
2491 PF (EXEC_P, "EXEC_P");
2492 PF (HAS_LINENO, "HAS_LINENO");
2493 PF (HAS_DEBUG, "HAS_DEBUG");
2494 PF (HAS_SYMS, "HAS_SYMS");
2495 PF (HAS_LOCALS, "HAS_LOCALS");
2496 PF (DYNAMIC, "DYNAMIC");
2497 PF (WP_TEXT, "WP_TEXT");
2498 PF (D_PAGED, "D_PAGED");
2499 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
2500 PF (HAS_LOAD_PAGE, "HAS_LOAD_PAGE");
2501 printf (_("\nstart address 0x"));
2502 bfd_printf_vma (abfd, abfd->start_address);
2503 printf ("\n");
2507 static void
2508 dump_bfd_private_header (bfd *abfd)
2510 bfd_print_private_bfd_data (abfd, stdout);
2514 /* Display a section in hexadecimal format with associated characters.
2515 Each line prefixed by the zero padded address. */
2517 static void
2518 dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
2520 bfd_byte *data = 0;
2521 bfd_size_type datasize;
2522 bfd_size_type addr_offset;
2523 bfd_size_type start_offset;
2524 bfd_size_type stop_offset;
2525 unsigned int opb = bfd_octets_per_byte (abfd);
2526 /* Bytes per line. */
2527 const int onaline = 16;
2528 char buf[64];
2529 int count;
2530 int width;
2532 if ((section->flags & SEC_HAS_CONTENTS) == 0)
2533 return;
2535 if (! process_section_p (section))
2536 return;
2538 if ((datasize = bfd_section_size (abfd, section)) == 0)
2539 return;
2541 /* Compute the address range to display. */
2542 if (start_address == (bfd_vma) -1
2543 || start_address < section->vma)
2544 start_offset = 0;
2545 else
2546 start_offset = start_address - section->vma;
2548 if (stop_address == (bfd_vma) -1)
2549 stop_offset = datasize / opb;
2550 else
2552 if (stop_address < section->vma)
2553 stop_offset = 0;
2554 else
2555 stop_offset = stop_address - section->vma;
2557 if (stop_offset > datasize / opb)
2558 stop_offset = datasize / opb;
2561 if (start_offset >= stop_offset)
2562 return;
2564 printf (_("Contents of section %s:"), section->name);
2565 if (display_file_offsets)
2566 printf (_(" (Starting at file offset: 0x%lx)"), (long int)(section->filepos + start_offset));
2567 printf ("\n");
2569 data = xmalloc (datasize);
2571 bfd_get_section_contents (abfd, section, data, 0, datasize);
2573 width = 4;
2575 bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
2576 if (strlen (buf) >= sizeof (buf))
2577 abort ();
2579 count = 0;
2580 while (buf[count] == '0' && buf[count+1] != '\0')
2581 count++;
2582 count = strlen (buf) - count;
2583 if (count > width)
2584 width = count;
2586 bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
2587 if (strlen (buf) >= sizeof (buf))
2588 abort ();
2590 count = 0;
2591 while (buf[count] == '0' && buf[count+1] != '\0')
2592 count++;
2593 count = strlen (buf) - count;
2594 if (count > width)
2595 width = count;
2597 for (addr_offset = start_offset;
2598 addr_offset < stop_offset; addr_offset += onaline / opb)
2600 bfd_size_type j;
2602 bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
2603 count = strlen (buf);
2604 if ((size_t) count >= sizeof (buf))
2605 abort ();
2607 putchar (' ');
2608 while (count < width)
2610 putchar ('0');
2611 count++;
2613 fputs (buf + count - width, stdout);
2614 putchar (' ');
2616 for (j = addr_offset * opb;
2617 j < addr_offset * opb + onaline; j++)
2619 if (j < stop_offset * opb)
2620 printf ("%02x", (unsigned) (data[j]));
2621 else
2622 printf (" ");
2623 if ((j & 3) == 3)
2624 printf (" ");
2627 printf (" ");
2628 for (j = addr_offset * opb;
2629 j < addr_offset * opb + onaline; j++)
2631 if (j >= stop_offset * opb)
2632 printf (" ");
2633 else
2634 printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
2636 putchar ('\n');
2638 free (data);
2641 /* Actually display the various requested regions. */
2643 static void
2644 dump_data (bfd *abfd)
2646 bfd_map_over_sections (abfd, dump_section, NULL);
2649 /* Should perhaps share code and display with nm? */
2651 static void
2652 dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
2654 asymbol **current;
2655 long max;
2656 long count;
2658 if (dynamic)
2660 current = dynsyms;
2661 max = dynsymcount;
2662 printf ("DYNAMIC SYMBOL TABLE:\n");
2664 else
2666 current = syms;
2667 max = symcount;
2668 printf ("SYMBOL TABLE:\n");
2671 if (max == 0)
2672 printf (_("no symbols\n"));
2674 for (count = 0; count < max; count++)
2676 bfd *cur_bfd;
2678 if (*current == NULL)
2679 printf (_("no information for symbol number %ld\n"), count);
2681 else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
2682 printf (_("could not determine the type of symbol number %ld\n"),
2683 count);
2685 else if (process_section_p ((* current)->section)
2686 && (dump_special_syms
2687 || !bfd_is_target_special_symbol (cur_bfd, *current)))
2689 const char *name = (*current)->name;
2691 if (do_demangle && name != NULL && *name != '\0')
2693 char *alloc;
2695 /* If we want to demangle the name, we demangle it
2696 here, and temporarily clobber it while calling
2697 bfd_print_symbol. FIXME: This is a gross hack. */
2698 alloc = bfd_demangle (cur_bfd, name, DMGL_ANSI | DMGL_PARAMS);
2699 if (alloc != NULL)
2700 (*current)->name = alloc;
2701 bfd_print_symbol (cur_bfd, stdout, *current,
2702 bfd_print_symbol_all);
2703 if (alloc != NULL)
2705 (*current)->name = name;
2706 free (alloc);
2709 else
2710 bfd_print_symbol (cur_bfd, stdout, *current,
2711 bfd_print_symbol_all);
2712 printf ("\n");
2715 current++;
2717 printf ("\n\n");
2720 static void
2721 dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount)
2723 arelent **p;
2724 char *last_filename, *last_functionname;
2725 unsigned int last_line;
2727 /* Get column headers lined up reasonably. */
2729 static int width;
2731 if (width == 0)
2733 char buf[30];
2735 bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
2736 width = strlen (buf) - 7;
2738 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2741 last_filename = NULL;
2742 last_functionname = NULL;
2743 last_line = 0;
2745 for (p = relpp; relcount && *p != NULL; p++, relcount--)
2747 arelent *q = *p;
2748 const char *filename, *functionname;
2749 unsigned int line;
2750 const char *sym_name;
2751 const char *section_name;
2753 if (start_address != (bfd_vma) -1
2754 && q->address < start_address)
2755 continue;
2756 if (stop_address != (bfd_vma) -1
2757 && q->address > stop_address)
2758 continue;
2760 if (with_line_numbers
2761 && sec != NULL
2762 && bfd_find_nearest_line (abfd, sec, syms, q->address,
2763 &filename, &functionname, &line))
2765 if (functionname != NULL
2766 && (last_functionname == NULL
2767 || strcmp (functionname, last_functionname) != 0))
2769 printf ("%s():\n", functionname);
2770 if (last_functionname != NULL)
2771 free (last_functionname);
2772 last_functionname = xstrdup (functionname);
2775 if (line > 0
2776 && (line != last_line
2777 || (filename != NULL
2778 && last_filename != NULL
2779 && strcmp (filename, last_filename) != 0)))
2781 printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
2782 last_line = line;
2783 if (last_filename != NULL)
2784 free (last_filename);
2785 if (filename == NULL)
2786 last_filename = NULL;
2787 else
2788 last_filename = xstrdup (filename);
2792 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2794 sym_name = (*(q->sym_ptr_ptr))->name;
2795 section_name = (*(q->sym_ptr_ptr))->section->name;
2797 else
2799 sym_name = NULL;
2800 section_name = NULL;
2803 bfd_printf_vma (abfd, q->address);
2804 if (q->howto == NULL)
2805 printf (" *unknown* ");
2806 else if (q->howto->name)
2807 printf (" %-16s ", q->howto->name);
2808 else
2809 printf (" %-16d ", q->howto->type);
2810 if (sym_name)
2811 objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
2812 else
2814 if (section_name == NULL)
2815 section_name = "*unknown*";
2816 printf ("[%s]", section_name);
2819 if (q->addend)
2821 printf ("+0x");
2822 bfd_printf_vma (abfd, q->addend);
2825 printf ("\n");
2829 static void
2830 dump_relocs_in_section (bfd *abfd,
2831 asection *section,
2832 void *dummy ATTRIBUTE_UNUSED)
2834 arelent **relpp;
2835 long relcount;
2836 long relsize;
2838 if ( bfd_is_abs_section (section)
2839 || bfd_is_und_section (section)
2840 || bfd_is_com_section (section)
2841 || (! process_section_p (section))
2842 || ((section->flags & SEC_RELOC) == 0))
2843 return;
2845 relsize = bfd_get_reloc_upper_bound (abfd, section);
2846 if (relsize < 0)
2847 bfd_fatal (bfd_get_filename (abfd));
2849 printf ("RELOCATION RECORDS FOR [%s]:", section->name);
2851 if (relsize == 0)
2853 printf (" (none)\n\n");
2854 return;
2857 relpp = xmalloc (relsize);
2858 relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
2860 if (relcount < 0)
2861 bfd_fatal (bfd_get_filename (abfd));
2862 else if (relcount == 0)
2863 printf (" (none)\n\n");
2864 else
2866 printf ("\n");
2867 dump_reloc_set (abfd, section, relpp, relcount);
2868 printf ("\n\n");
2870 free (relpp);
2873 static void
2874 dump_relocs (bfd *abfd)
2876 bfd_map_over_sections (abfd, dump_relocs_in_section, NULL);
2879 static void
2880 dump_dynamic_relocs (bfd *abfd)
2882 long relsize;
2883 arelent **relpp;
2884 long relcount;
2886 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2887 if (relsize < 0)
2888 bfd_fatal (bfd_get_filename (abfd));
2890 printf ("DYNAMIC RELOCATION RECORDS");
2892 if (relsize == 0)
2893 printf (" (none)\n\n");
2894 else
2896 relpp = xmalloc (relsize);
2897 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
2899 if (relcount < 0)
2900 bfd_fatal (bfd_get_filename (abfd));
2901 else if (relcount == 0)
2902 printf (" (none)\n\n");
2903 else
2905 printf ("\n");
2906 dump_reloc_set (abfd, NULL, relpp, relcount);
2907 printf ("\n\n");
2909 free (relpp);
2913 /* Creates a table of paths, to search for source files. */
2915 static void
2916 add_include_path (const char *path)
2918 if (path[0] == 0)
2919 return;
2920 include_path_count++;
2921 include_paths = xrealloc (include_paths,
2922 include_path_count * sizeof (*include_paths));
2923 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2924 if (path[1] == ':' && path[2] == 0)
2925 path = concat (path, ".", (const char *) 0);
2926 #endif
2927 include_paths[include_path_count - 1] = path;
2930 static void
2931 adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
2932 asection *section,
2933 void *arg)
2935 if ((section->flags & SEC_DEBUGGING) == 0)
2937 bfd_boolean *has_reloc_p = (bfd_boolean *) arg;
2938 section->vma += adjust_section_vma;
2939 if (*has_reloc_p)
2940 section->lma += adjust_section_vma;
2944 /* Dump selected contents of ABFD. */
2946 static void
2947 dump_bfd (bfd *abfd)
2949 /* If we are adjusting section VMA's, change them all now. Changing
2950 the BFD information is a hack. However, we must do it, or
2951 bfd_find_nearest_line will not do the right thing. */
2952 if (adjust_section_vma != 0)
2954 bfd_boolean has_reloc = (abfd->flags & HAS_RELOC);
2955 bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
2958 if (! dump_debugging_tags)
2959 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
2960 abfd->xvec->name);
2961 if (dump_ar_hdrs)
2962 print_arelt_descr (stdout, abfd, TRUE);
2963 if (dump_file_header)
2964 dump_bfd_header (abfd);
2965 if (dump_private_headers)
2966 dump_bfd_private_header (abfd);
2967 if (! dump_debugging_tags)
2968 putchar ('\n');
2969 if (dump_section_headers)
2970 dump_headers (abfd);
2972 if (dump_symtab
2973 || dump_reloc_info
2974 || disassemble
2975 || dump_debugging
2976 || dump_dwarf_section_info)
2977 syms = slurp_symtab (abfd);
2978 if (dump_dynamic_symtab || dump_dynamic_reloc_info
2979 || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
2980 dynsyms = slurp_dynamic_symtab (abfd);
2981 if (disassemble)
2983 synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
2984 dynsymcount, dynsyms, &synthsyms);
2985 if (synthcount < 0)
2986 synthcount = 0;
2989 if (dump_symtab)
2990 dump_symbols (abfd, FALSE);
2991 if (dump_dynamic_symtab)
2992 dump_symbols (abfd, TRUE);
2993 if (dump_dwarf_section_info)
2994 dump_dwarf (abfd);
2995 if (dump_stab_section_info)
2996 dump_stabs (abfd);
2997 if (dump_reloc_info && ! disassemble)
2998 dump_relocs (abfd);
2999 if (dump_dynamic_reloc_info && ! disassemble)
3000 dump_dynamic_relocs (abfd);
3001 if (dump_section_contents)
3002 dump_data (abfd);
3003 if (disassemble)
3004 disassemble_data (abfd);
3006 if (dump_debugging)
3008 void *dhandle;
3010 dhandle = read_debugging_info (abfd, syms, symcount, TRUE);
3011 if (dhandle != NULL)
3013 if (!print_debugging_info (stdout, dhandle, abfd, syms,
3014 bfd_demangle,
3015 dump_debugging_tags ? TRUE : FALSE))
3017 non_fatal (_("%s: printing debugging information failed"),
3018 bfd_get_filename (abfd));
3019 exit_status = 1;
3022 /* PR 6483: If there was no STABS or IEEE debug
3023 info in the file, try DWARF instead. */
3024 else if (! dump_dwarf_section_info)
3026 dump_dwarf (abfd);
3030 if (syms)
3032 free (syms);
3033 syms = NULL;
3036 if (dynsyms)
3038 free (dynsyms);
3039 dynsyms = NULL;
3042 if (synthsyms)
3044 free (synthsyms);
3045 synthsyms = NULL;
3048 symcount = 0;
3049 dynsymcount = 0;
3050 synthcount = 0;
3053 static void
3054 display_bfd (bfd *abfd)
3056 char **matching;
3058 if (bfd_check_format_matches (abfd, bfd_object, &matching))
3060 dump_bfd (abfd);
3061 return;
3064 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3066 nonfatal (bfd_get_filename (abfd));
3067 list_matching_formats (matching);
3068 free (matching);
3069 return;
3072 if (bfd_get_error () != bfd_error_file_not_recognized)
3074 nonfatal (bfd_get_filename (abfd));
3075 return;
3078 if (bfd_check_format_matches (abfd, bfd_core, &matching))
3080 dump_bfd (abfd);
3081 return;
3084 nonfatal (bfd_get_filename (abfd));
3086 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3088 list_matching_formats (matching);
3089 free (matching);
3093 static void
3094 display_file (char *filename, char *target)
3096 bfd *file;
3097 bfd *arfile = NULL;
3099 if (get_file_size (filename) < 1)
3101 exit_status = 1;
3102 return;
3105 file = bfd_openr (filename, target);
3106 if (file == NULL)
3108 nonfatal (filename);
3109 return;
3112 /* If the file is an archive, process all of its elements. */
3113 if (bfd_check_format (file, bfd_archive))
3115 bfd *last_arfile = NULL;
3117 printf (_("In archive %s:\n"), bfd_get_filename (file));
3118 for (;;)
3120 bfd_set_error (bfd_error_no_error);
3122 arfile = bfd_openr_next_archived_file (file, arfile);
3123 if (arfile == NULL)
3125 if (bfd_get_error () != bfd_error_no_more_archived_files)
3126 nonfatal (bfd_get_filename (file));
3127 break;
3130 display_bfd (arfile);
3132 if (last_arfile != NULL)
3133 bfd_close (last_arfile);
3134 last_arfile = arfile;
3137 if (last_arfile != NULL)
3138 bfd_close (last_arfile);
3140 else
3141 display_bfd (file);
3143 bfd_close (file);
3147 main (int argc, char **argv)
3149 int c;
3150 char *target = default_target;
3151 bfd_boolean seenflag = FALSE;
3153 #if defined (HAVE_SETLOCALE)
3154 #if defined (HAVE_LC_MESSAGES)
3155 setlocale (LC_MESSAGES, "");
3156 #endif
3157 setlocale (LC_CTYPE, "");
3158 #endif
3160 bindtextdomain (PACKAGE, LOCALEDIR);
3161 textdomain (PACKAGE);
3163 program_name = *argv;
3164 xmalloc_set_program_name (program_name);
3166 START_PROGRESS (program_name, 0);
3168 expandargv (&argc, &argv);
3170 bfd_init ();
3171 set_default_bfd_target ();
3173 while ((c = getopt_long (argc, argv, "pib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW",
3174 long_options, (int *) 0))
3175 != EOF)
3177 switch (c)
3179 case 0:
3180 break; /* We've been given a long option. */
3181 case 'm':
3182 machine = optarg;
3183 break;
3184 case 'M':
3185 if (disassembler_options)
3186 /* Ignore potential memory leak for now. */
3187 disassembler_options = concat (disassembler_options, ",",
3188 optarg, (const char *) NULL);
3189 else
3190 disassembler_options = optarg;
3191 break;
3192 case 'j':
3193 if (only_used == only_size)
3195 only_size += 8;
3196 only = xrealloc (only, only_size * sizeof (char *));
3198 only [only_used++] = optarg;
3199 break;
3200 case 'F':
3201 display_file_offsets = TRUE;
3202 break;
3203 case 'l':
3204 with_line_numbers = TRUE;
3205 break;
3206 case 'b':
3207 target = optarg;
3208 break;
3209 case 'C':
3210 do_demangle = TRUE;
3211 if (optarg != NULL)
3213 enum demangling_styles style;
3215 style = cplus_demangle_name_to_style (optarg);
3216 if (style == unknown_demangling)
3217 fatal (_("unknown demangling style `%s'"),
3218 optarg);
3220 cplus_demangle_set_style (style);
3222 break;
3223 case 'w':
3224 wide_output = TRUE;
3225 break;
3226 case OPTION_ADJUST_VMA:
3227 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
3228 break;
3229 case OPTION_START_ADDRESS:
3230 start_address = parse_vma (optarg, "--start-address");
3231 if ((stop_address != (bfd_vma) -1) && stop_address <= start_address)
3232 fatal (_("error: the start address should be before the end address"));
3233 break;
3234 case OPTION_STOP_ADDRESS:
3235 stop_address = parse_vma (optarg, "--stop-address");
3236 if ((start_address != (bfd_vma) -1) && stop_address <= start_address)
3237 fatal (_("error: the stop address should be after the start address"));
3238 break;
3239 case 'E':
3240 if (strcmp (optarg, "B") == 0)
3241 endian = BFD_ENDIAN_BIG;
3242 else if (strcmp (optarg, "L") == 0)
3243 endian = BFD_ENDIAN_LITTLE;
3244 else
3246 non_fatal (_("unrecognized -E option"));
3247 usage (stderr, 1);
3249 break;
3250 case OPTION_ENDIAN:
3251 if (strncmp (optarg, "big", strlen (optarg)) == 0)
3252 endian = BFD_ENDIAN_BIG;
3253 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
3254 endian = BFD_ENDIAN_LITTLE;
3255 else
3257 non_fatal (_("unrecognized --endian type `%s'"), optarg);
3258 usage (stderr, 1);
3260 break;
3262 case 'f':
3263 dump_file_header = TRUE;
3264 seenflag = TRUE;
3265 break;
3266 case 'i':
3267 formats_info = TRUE;
3268 seenflag = TRUE;
3269 break;
3270 case 'I':
3271 add_include_path (optarg);
3272 break;
3273 case 'p':
3274 dump_private_headers = TRUE;
3275 seenflag = TRUE;
3276 break;
3277 case 'x':
3278 dump_private_headers = TRUE;
3279 dump_symtab = TRUE;
3280 dump_reloc_info = TRUE;
3281 dump_file_header = TRUE;
3282 dump_ar_hdrs = TRUE;
3283 dump_section_headers = TRUE;
3284 seenflag = TRUE;
3285 break;
3286 case 't':
3287 dump_symtab = TRUE;
3288 seenflag = TRUE;
3289 break;
3290 case 'T':
3291 dump_dynamic_symtab = TRUE;
3292 seenflag = TRUE;
3293 break;
3294 case 'd':
3295 disassemble = TRUE;
3296 seenflag = TRUE;
3297 break;
3298 case 'z':
3299 disassemble_zeroes = TRUE;
3300 break;
3301 case 'D':
3302 disassemble = TRUE;
3303 disassemble_all = TRUE;
3304 seenflag = TRUE;
3305 break;
3306 case 'S':
3307 disassemble = TRUE;
3308 with_source_code = TRUE;
3309 seenflag = TRUE;
3310 break;
3311 case 'g':
3312 dump_debugging = 1;
3313 seenflag = TRUE;
3314 break;
3315 case 'e':
3316 dump_debugging = 1;
3317 dump_debugging_tags = 1;
3318 do_demangle = TRUE;
3319 seenflag = TRUE;
3320 break;
3321 case 'W':
3322 dump_dwarf_section_info = TRUE;
3323 seenflag = TRUE;
3324 do_debug_info = 1;
3325 do_debug_abbrevs = 1;
3326 do_debug_lines = 1;
3327 do_debug_pubnames = 1;
3328 do_debug_aranges = 1;
3329 do_debug_ranges = 1;
3330 do_debug_frames = 1;
3331 do_debug_macinfo = 1;
3332 do_debug_str = 1;
3333 do_debug_loc = 1;
3334 break;
3335 case 'G':
3336 dump_stab_section_info = TRUE;
3337 seenflag = TRUE;
3338 break;
3339 case 's':
3340 dump_section_contents = TRUE;
3341 seenflag = TRUE;
3342 break;
3343 case 'r':
3344 dump_reloc_info = TRUE;
3345 seenflag = TRUE;
3346 break;
3347 case 'R':
3348 dump_dynamic_reloc_info = TRUE;
3349 seenflag = TRUE;
3350 break;
3351 case 'a':
3352 dump_ar_hdrs = TRUE;
3353 seenflag = TRUE;
3354 break;
3355 case 'h':
3356 dump_section_headers = TRUE;
3357 seenflag = TRUE;
3358 break;
3359 case 'H':
3360 usage (stdout, 0);
3361 seenflag = TRUE;
3362 case 'v':
3363 case 'V':
3364 show_version = TRUE;
3365 seenflag = TRUE;
3366 break;
3368 default:
3369 usage (stderr, 1);
3373 if (show_version)
3374 print_version ("objdump");
3376 if (!seenflag)
3377 usage (stderr, 2);
3379 if (formats_info)
3380 exit_status = display_info ();
3381 else
3383 if (optind == argc)
3384 display_file ("a.out", target);
3385 else
3386 for (; optind < argc;)
3387 display_file (argv[optind++], target);
3390 END_PROGRESS (program_name);
3392 return exit_status;