Remove special case handling for rtems targets that are sufficiently handled by
[binutils.git] / binutils / objdump.c
blobf8e7cd9879136c846f186a441af2a5401ee1fc08
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
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 2, or (at your option)
11 any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
22 /* Objdump overview.
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.
29 The flow of execution is as follows:
31 1. Command line arguments are checked for control switches and the
32 information to be displayed is selected.
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.
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.
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.
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. */
51 #include "bfd.h"
52 #include "bfdver.h"
53 #include "progress.h"
54 #include "bucomm.h"
55 #include "budemang.h"
56 #include "getopt.h"
57 #include "safe-ctype.h"
58 #include "dis-asm.h"
59 #include "libiberty.h"
60 #include "demangle.h"
61 #include "debug.h"
62 #include "budbg.h"
64 /* Internal headers for the ELF .stab-dump code - sorry. */
65 #define BYTES_IN_WORD 32
66 #include "aout/aout64.h"
68 #if !HAVE_DECL_FPRINTF
69 /* This is needed by init_disassemble_info(). */
70 extern int fprintf (FILE *, const char *, ...);
71 #endif
73 /* Exit status. */
74 static int exit_status = 0;
76 static char *default_target = NULL; /* Default at runtime. */
78 /* The following variables are set based on arguments passed on the
79 command line. */
80 static int show_version = 0; /* Show the version number. */
81 static int dump_section_contents; /* -s */
82 static int dump_section_headers; /* -h */
83 static bfd_boolean dump_file_header; /* -f */
84 static int dump_symtab; /* -t */
85 static int dump_dynamic_symtab; /* -T */
86 static int dump_reloc_info; /* -r */
87 static int dump_dynamic_reloc_info; /* -R */
88 static int dump_ar_hdrs; /* -a */
89 static int dump_private_headers; /* -p */
90 static int prefix_addresses; /* --prefix-addresses */
91 static int with_line_numbers; /* -l */
92 static bfd_boolean with_source_code; /* -S */
93 static int show_raw_insn; /* --show-raw-insn */
94 static int dump_stab_section_info; /* --stabs */
95 static int do_demangle; /* -C, --demangle */
96 static bfd_boolean disassemble; /* -d */
97 static bfd_boolean disassemble_all; /* -D */
98 static int disassemble_zeroes; /* --disassemble-zeroes */
99 static bfd_boolean formats_info; /* -i */
100 static int wide_output; /* -w */
101 static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
102 static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
103 static int dump_debugging; /* --debugging */
104 static int dump_debugging_tags; /* --debugging-tags */
105 static int dump_special_syms = 0; /* --special-syms */
106 static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
107 static int file_start_context = 0; /* --file-start-context */
109 /* Pointer to an array of section names provided by
110 one or more "-j secname" command line options. */
111 static char **only;
112 /* The total number of slots in the only[] array. */
113 static size_t only_size = 0;
114 /* The number of occupied slots in the only[] array. */
115 static size_t only_used = 0;
117 /* Variables for handling include file path table. */
118 static const char **include_paths;
119 static int include_path_count;
121 /* Extra info to pass to the section disassembler and address printing
122 function. */
123 struct objdump_disasm_info
125 bfd * abfd;
126 asection * sec;
127 bfd_boolean require_sec;
128 arelent ** dynrelbuf;
129 long dynrelcount;
130 disassembler_ftype disassemble_fn;
131 #ifdef DISASSEMBLER_NEEDS_RELOCS
132 arelent * reloc;
133 #endif
136 /* Architecture to disassemble for, or default if NULL. */
137 static char *machine = NULL;
139 /* Target specific options to the disassembler. */
140 static char *disassembler_options = NULL;
142 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
143 static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
145 /* The symbol table. */
146 static asymbol **syms;
148 /* Number of symbols in `syms'. */
149 static long symcount = 0;
151 /* The sorted symbol table. */
152 static asymbol **sorted_syms;
154 /* Number of symbols in `sorted_syms'. */
155 static long sorted_symcount = 0;
157 /* The dynamic symbol table. */
158 static asymbol **dynsyms;
160 /* The synthetic symbol table. */
161 static asymbol *synthsyms;
162 static long synthcount = 0;
164 /* Number of symbols in `dynsyms'. */
165 static long dynsymcount = 0;
167 static bfd_byte *stabs;
168 static bfd_size_type stab_size;
170 static char *strtab;
171 static bfd_size_type stabstr_size;
173 static void
174 usage (FILE *stream, int status)
176 fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name);
177 fprintf (stream, _(" Display information from object <file(s)>.\n"));
178 fprintf (stream, _(" At least one of the following switches must be given:\n"));
179 fprintf (stream, _("\
180 -a, --archive-headers Display archive header information\n\
181 -f, --file-headers Display the contents of the overall file header\n\
182 -p, --private-headers Display object format specific file header contents\n\
183 -h, --[section-]headers Display the contents of the section headers\n\
184 -x, --all-headers Display the contents of all headers\n\
185 -d, --disassemble Display assembler contents of executable sections\n\
186 -D, --disassemble-all Display assembler contents of all sections\n\
187 -S, --source Intermix source code with disassembly\n\
188 -s, --full-contents Display the full contents of all sections requested\n\
189 -g, --debugging Display debug information in object file\n\
190 -e, --debugging-tags Display debug information using ctags style\n\
191 -G, --stabs Display (in raw form) any STABS info in the file\n\
192 -t, --syms Display the contents of the symbol table(s)\n\
193 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
194 -r, --reloc Display the relocation entries in the file\n\
195 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
196 -v, --version Display this program's version number\n\
197 -i, --info List object formats and architectures supported\n\
198 -H, --help Display this information\n\
199 "));
200 if (status != 2)
202 fprintf (stream, _("\n The following switches are optional:\n"));
203 fprintf (stream, _("\
204 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
205 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
206 -j, --section=NAME Only display information for section NAME\n\
207 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
208 -EB --endian=big Assume big endian format when disassembling\n\
209 -EL --endian=little Assume little endian format when disassembling\n\
210 --file-start-context Include context from start of file (with -S)\n\
211 -I, --include=DIR Add DIR to search list for source files\n\
212 -l, --line-numbers Include line numbers and filenames in output\n\
213 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
214 The STYLE, if specified, can be `auto', `gnu',\n\
215 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
216 or `gnat'\n\
217 -w, --wide Format output for more than 80 columns\n\
218 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
219 --start-address=ADDR Only process data whose address is >= ADDR\n\
220 --stop-address=ADDR Only process data whose address is <= ADDR\n\
221 --prefix-addresses Print complete address alongside disassembly\n\
222 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
223 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
224 --special-syms Include special symbols in symbol dumps\n\
225 \n"));
226 list_supported_targets (program_name, stream);
227 list_supported_architectures (program_name, stream);
229 disassembler_usage (stream);
231 if (status == 0)
232 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
233 exit (status);
236 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
237 enum option_values
239 OPTION_ENDIAN=150,
240 OPTION_START_ADDRESS,
241 OPTION_STOP_ADDRESS,
242 OPTION_ADJUST_VMA
245 static struct option long_options[]=
247 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
248 {"all-headers", no_argument, NULL, 'x'},
249 {"private-headers", no_argument, NULL, 'p'},
250 {"architecture", required_argument, NULL, 'm'},
251 {"archive-headers", no_argument, NULL, 'a'},
252 {"debugging", no_argument, NULL, 'g'},
253 {"debugging-tags", no_argument, NULL, 'e'},
254 {"demangle", optional_argument, NULL, 'C'},
255 {"disassemble", no_argument, NULL, 'd'},
256 {"disassemble-all", no_argument, NULL, 'D'},
257 {"disassembler-options", required_argument, NULL, 'M'},
258 {"disassemble-zeroes", no_argument, NULL, 'z'},
259 {"dynamic-reloc", no_argument, NULL, 'R'},
260 {"dynamic-syms", no_argument, NULL, 'T'},
261 {"endian", required_argument, NULL, OPTION_ENDIAN},
262 {"file-headers", no_argument, NULL, 'f'},
263 {"file-start-context", no_argument, &file_start_context, 1},
264 {"full-contents", no_argument, NULL, 's'},
265 {"headers", no_argument, NULL, 'h'},
266 {"help", no_argument, NULL, 'H'},
267 {"info", no_argument, NULL, 'i'},
268 {"line-numbers", no_argument, NULL, 'l'},
269 {"no-show-raw-insn", no_argument, &show_raw_insn, -1},
270 {"prefix-addresses", no_argument, &prefix_addresses, 1},
271 {"reloc", no_argument, NULL, 'r'},
272 {"section", required_argument, NULL, 'j'},
273 {"section-headers", no_argument, NULL, 'h'},
274 {"show-raw-insn", no_argument, &show_raw_insn, 1},
275 {"source", no_argument, NULL, 'S'},
276 {"special-syms", no_argument, &dump_special_syms, 1},
277 {"include", required_argument, NULL, 'I'},
278 {"stabs", no_argument, NULL, 'G'},
279 {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
280 {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
281 {"syms", no_argument, NULL, 't'},
282 {"target", required_argument, NULL, 'b'},
283 {"version", no_argument, NULL, 'V'},
284 {"wide", no_argument, NULL, 'w'},
285 {0, no_argument, 0, 0}
288 static void
289 nonfatal (const char *msg)
291 bfd_nonfatal (msg);
292 exit_status = 1;
295 static void
296 dump_section_header (bfd *abfd, asection *section,
297 void *ignored ATTRIBUTE_UNUSED)
299 char *comma = "";
300 unsigned int opb = bfd_octets_per_byte (abfd);
302 /* Ignore linker created section. See elfNN_ia64_object_p in
303 bfd/elfxx-ia64.c. */
304 if (section->flags & SEC_LINKER_CREATED)
305 return;
307 printf ("%3d %-13s %08lx ", section->index,
308 bfd_get_section_name (abfd, section),
309 (unsigned long) bfd_section_size (abfd, section) / opb);
310 bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
311 printf (" ");
312 bfd_printf_vma (abfd, section->lma);
313 printf (" %08lx 2**%u", (unsigned long) section->filepos,
314 bfd_get_section_alignment (abfd, section));
315 if (! wide_output)
316 printf ("\n ");
317 printf (" ");
319 #define PF(x, y) \
320 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
322 PF (SEC_HAS_CONTENTS, "CONTENTS");
323 PF (SEC_ALLOC, "ALLOC");
324 PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
325 PF (SEC_LOAD, "LOAD");
326 PF (SEC_RELOC, "RELOC");
327 PF (SEC_READONLY, "READONLY");
328 PF (SEC_CODE, "CODE");
329 PF (SEC_DATA, "DATA");
330 PF (SEC_ROM, "ROM");
331 PF (SEC_DEBUGGING, "DEBUGGING");
332 PF (SEC_NEVER_LOAD, "NEVER_LOAD");
333 PF (SEC_EXCLUDE, "EXCLUDE");
334 PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
335 if (bfd_get_arch (abfd) == bfd_arch_tic54x)
337 PF (SEC_TIC54X_BLOCK, "BLOCK");
338 PF (SEC_TIC54X_CLINK, "CLINK");
340 PF (SEC_SMALL_DATA, "SMALL_DATA");
341 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
342 PF (SEC_COFF_SHARED, "SHARED");
343 PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
344 PF (SEC_GROUP, "GROUP");
346 if ((section->flags & SEC_LINK_ONCE) != 0)
348 const char *ls;
349 struct coff_comdat_info *comdat;
351 switch (section->flags & SEC_LINK_DUPLICATES)
353 default:
354 abort ();
355 case SEC_LINK_DUPLICATES_DISCARD:
356 ls = "LINK_ONCE_DISCARD";
357 break;
358 case SEC_LINK_DUPLICATES_ONE_ONLY:
359 ls = "LINK_ONCE_ONE_ONLY";
360 break;
361 case SEC_LINK_DUPLICATES_SAME_SIZE:
362 ls = "LINK_ONCE_SAME_SIZE";
363 break;
364 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
365 ls = "LINK_ONCE_SAME_CONTENTS";
366 break;
368 printf ("%s%s", comma, ls);
370 comdat = bfd_coff_get_comdat_section (abfd, section);
371 if (comdat != NULL)
372 printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
374 comma = ", ";
377 printf ("\n");
378 #undef PF
381 static void
382 dump_headers (bfd *abfd)
384 printf (_("Sections:\n"));
386 #ifndef BFD64
387 printf (_("Idx Name Size VMA LMA File off Algn"));
388 #else
389 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
390 if (bfd_get_arch_size (abfd) == 32)
391 printf (_("Idx Name Size VMA LMA File off Algn"));
392 else
393 printf (_("Idx Name Size VMA LMA File off Algn"));
394 #endif
396 if (wide_output)
397 printf (_(" Flags"));
398 if (abfd->flags & HAS_LOAD_PAGE)
399 printf (_(" Pg"));
400 printf ("\n");
402 bfd_map_over_sections (abfd, dump_section_header, NULL);
405 static asymbol **
406 slurp_symtab (bfd *abfd)
408 asymbol **sy = NULL;
409 long storage;
411 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
413 symcount = 0;
414 return NULL;
417 storage = bfd_get_symtab_upper_bound (abfd);
418 if (storage < 0)
419 bfd_fatal (bfd_get_filename (abfd));
420 if (storage)
421 sy = xmalloc (storage);
423 symcount = bfd_canonicalize_symtab (abfd, sy);
424 if (symcount < 0)
425 bfd_fatal (bfd_get_filename (abfd));
426 return sy;
429 /* Read in the dynamic symbols. */
431 static asymbol **
432 slurp_dynamic_symtab (bfd *abfd)
434 asymbol **sy = NULL;
435 long storage;
437 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
438 if (storage < 0)
440 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
442 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
443 dynsymcount = 0;
444 return NULL;
447 bfd_fatal (bfd_get_filename (abfd));
449 if (storage)
450 sy = xmalloc (storage);
452 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
453 if (dynsymcount < 0)
454 bfd_fatal (bfd_get_filename (abfd));
455 return sy;
458 /* Filter out (in place) symbols that are useless for disassembly.
459 COUNT is the number of elements in SYMBOLS.
460 Return the number of useful symbols. */
462 static long
463 remove_useless_symbols (asymbol **symbols, long count)
465 asymbol **in_ptr = symbols, **out_ptr = symbols;
467 while (--count >= 0)
469 asymbol *sym = *in_ptr++;
471 if (sym->name == NULL || sym->name[0] == '\0')
472 continue;
473 if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
474 continue;
475 if (bfd_is_und_section (sym->section)
476 || bfd_is_com_section (sym->section))
477 continue;
479 *out_ptr++ = sym;
481 return out_ptr - symbols;
484 /* Sort symbols into value order. */
486 static int
487 compare_symbols (const void *ap, const void *bp)
489 const asymbol *a = * (const asymbol **) ap;
490 const asymbol *b = * (const asymbol **) bp;
491 const char *an;
492 const char *bn;
493 size_t anl;
494 size_t bnl;
495 bfd_boolean af;
496 bfd_boolean bf;
497 flagword aflags;
498 flagword bflags;
500 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
501 return 1;
502 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
503 return -1;
505 if (a->section > b->section)
506 return 1;
507 else if (a->section < b->section)
508 return -1;
510 an = bfd_asymbol_name (a);
511 bn = bfd_asymbol_name (b);
512 anl = strlen (an);
513 bnl = strlen (bn);
515 /* The symbols gnu_compiled and gcc2_compiled convey no real
516 information, so put them after other symbols with the same value. */
517 af = (strstr (an, "gnu_compiled") != NULL
518 || strstr (an, "gcc2_compiled") != NULL);
519 bf = (strstr (bn, "gnu_compiled") != NULL
520 || strstr (bn, "gcc2_compiled") != NULL);
522 if (af && ! bf)
523 return 1;
524 if (! af && bf)
525 return -1;
527 /* We use a heuristic for the file name, to try to sort it after
528 more useful symbols. It may not work on non Unix systems, but it
529 doesn't really matter; the only difference is precisely which
530 symbol names get printed. */
532 #define file_symbol(s, sn, snl) \
533 (((s)->flags & BSF_FILE) != 0 \
534 || ((sn)[(snl) - 2] == '.' \
535 && ((sn)[(snl) - 1] == 'o' \
536 || (sn)[(snl) - 1] == 'a')))
538 af = file_symbol (a, an, anl);
539 bf = file_symbol (b, bn, bnl);
541 if (af && ! bf)
542 return 1;
543 if (! af && bf)
544 return -1;
546 /* Try to sort global symbols before local symbols before function
547 symbols before debugging symbols. */
549 aflags = a->flags;
550 bflags = b->flags;
552 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
554 if ((aflags & BSF_DEBUGGING) != 0)
555 return 1;
556 else
557 return -1;
559 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
561 if ((aflags & BSF_FUNCTION) != 0)
562 return -1;
563 else
564 return 1;
566 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
568 if ((aflags & BSF_LOCAL) != 0)
569 return 1;
570 else
571 return -1;
573 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
575 if ((aflags & BSF_GLOBAL) != 0)
576 return -1;
577 else
578 return 1;
581 /* Symbols that start with '.' might be section names, so sort them
582 after symbols that don't start with '.'. */
583 if (an[0] == '.' && bn[0] != '.')
584 return 1;
585 if (an[0] != '.' && bn[0] == '.')
586 return -1;
588 /* Finally, if we can't distinguish them in any other way, try to
589 get consistent results by sorting the symbols by name. */
590 return strcmp (an, bn);
593 /* Sort relocs into address order. */
595 static int
596 compare_relocs (const void *ap, const void *bp)
598 const arelent *a = * (const arelent **) ap;
599 const arelent *b = * (const arelent **) bp;
601 if (a->address > b->address)
602 return 1;
603 else if (a->address < b->address)
604 return -1;
606 /* So that associated relocations tied to the same address show up
607 in the correct order, we don't do any further sorting. */
608 if (a > b)
609 return 1;
610 else if (a < b)
611 return -1;
612 else
613 return 0;
616 /* Print an address (VMA) to the output stream in INFO.
617 If SKIP_ZEROES is TRUE, omit leading zeroes. */
619 static void
620 objdump_print_value (bfd_vma vma, struct disassemble_info *info,
621 bfd_boolean skip_zeroes)
623 char buf[30];
624 char *p;
625 struct objdump_disasm_info *aux;
627 aux = (struct objdump_disasm_info *) info->application_data;
628 bfd_sprintf_vma (aux->abfd, buf, vma);
629 if (! skip_zeroes)
630 p = buf;
631 else
633 for (p = buf; *p == '0'; ++p)
635 if (*p == '\0')
636 --p;
638 (*info->fprintf_func) (info->stream, "%s", p);
641 /* Print the name of a symbol. */
643 static void
644 objdump_print_symname (bfd *abfd, struct disassemble_info *info,
645 asymbol *sym)
647 char *alloc;
648 const char *name;
650 alloc = NULL;
651 name = bfd_asymbol_name (sym);
652 if (do_demangle && name[0] != '\0')
654 /* Demangle the name. */
655 alloc = demangle (abfd, name);
656 name = alloc;
659 if (info != NULL)
660 (*info->fprintf_func) (info->stream, "%s", name);
661 else
662 printf ("%s", name);
664 if (alloc != NULL)
665 free (alloc);
668 /* Locate a symbol given a bfd and a section (from INFO->application_data),
669 and a VMA. If INFO->application_data->require_sec is TRUE, then always
670 require the symbol to be in the section. Returns NULL if there is no
671 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
672 of the symbol in sorted_syms. */
674 static asymbol *
675 find_symbol_for_address (bfd_vma vma,
676 struct disassemble_info *info,
677 long *place)
679 /* @@ Would it speed things up to cache the last two symbols returned,
680 and maybe their address ranges? For many processors, only one memory
681 operand can be present at a time, so the 2-entry cache wouldn't be
682 constantly churned by code doing heavy memory accesses. */
684 /* Indices in `sorted_syms'. */
685 long min = 0;
686 long max = sorted_symcount;
687 long thisplace;
688 struct objdump_disasm_info *aux;
689 bfd *abfd;
690 asection *sec;
691 unsigned int opb;
693 if (sorted_symcount < 1)
694 return NULL;
696 aux = (struct objdump_disasm_info *) info->application_data;
697 abfd = aux->abfd;
698 sec = aux->sec;
699 opb = bfd_octets_per_byte (abfd);
701 /* Perform a binary search looking for the closest symbol to the
702 required value. We are searching the range (min, max]. */
703 while (min + 1 < max)
705 asymbol *sym;
707 thisplace = (max + min) / 2;
708 sym = sorted_syms[thisplace];
710 if (bfd_asymbol_value (sym) > vma)
711 max = thisplace;
712 else if (bfd_asymbol_value (sym) < vma)
713 min = thisplace;
714 else
716 min = thisplace;
717 break;
721 /* The symbol we want is now in min, the low end of the range we
722 were searching. If there are several symbols with the same
723 value, we want the first one. */
724 thisplace = min;
725 while (thisplace > 0
726 && (bfd_asymbol_value (sorted_syms[thisplace])
727 == bfd_asymbol_value (sorted_syms[thisplace - 1])))
728 --thisplace;
730 /* If the file is relocatable, and the symbol could be from this
731 section, prefer a symbol from this section over symbols from
732 others, even if the other symbol's value might be closer.
734 Note that this may be wrong for some symbol references if the
735 sections have overlapping memory ranges, but in that case there's
736 no way to tell what's desired without looking at the relocation
737 table. */
738 if (sorted_syms[thisplace]->section != sec
739 && (aux->require_sec
740 || ((abfd->flags & HAS_RELOC) != 0
741 && vma >= bfd_get_section_vma (abfd, sec)
742 && vma < (bfd_get_section_vma (abfd, sec)
743 + bfd_section_size (abfd, sec) / opb))))
745 long i;
747 for (i = thisplace + 1; i < sorted_symcount; i++)
749 if (bfd_asymbol_value (sorted_syms[i])
750 != bfd_asymbol_value (sorted_syms[thisplace]))
751 break;
754 --i;
756 for (; i >= 0; i--)
758 if (sorted_syms[i]->section == sec
759 && (i == 0
760 || sorted_syms[i - 1]->section != sec
761 || (bfd_asymbol_value (sorted_syms[i])
762 != bfd_asymbol_value (sorted_syms[i - 1]))))
764 thisplace = i;
765 break;
769 if (sorted_syms[thisplace]->section != sec)
771 /* We didn't find a good symbol with a smaller value.
772 Look for one with a larger value. */
773 for (i = thisplace + 1; i < sorted_symcount; i++)
775 if (sorted_syms[i]->section == sec)
777 thisplace = i;
778 break;
783 if (sorted_syms[thisplace]->section != sec
784 && (aux->require_sec
785 || ((abfd->flags & HAS_RELOC) != 0
786 && vma >= bfd_get_section_vma (abfd, sec)
787 && vma < (bfd_get_section_vma (abfd, sec)
788 + bfd_section_size (abfd, sec)))))
789 /* There is no suitable symbol. */
790 return NULL;
793 /* Give the target a chance to reject the symbol. */
794 while (! info->symbol_is_valid (sorted_syms [thisplace], info))
796 ++ thisplace;
797 if (thisplace >= sorted_symcount
798 || bfd_asymbol_value (sorted_syms [thisplace]) > vma)
799 return NULL;
802 if (place != NULL)
803 *place = thisplace;
805 return sorted_syms[thisplace];
808 /* Print an address and the offset to the nearest symbol. */
810 static void
811 objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym,
812 bfd_vma vma, struct disassemble_info *info,
813 bfd_boolean skip_zeroes)
815 objdump_print_value (vma, info, skip_zeroes);
817 if (sym == NULL)
819 bfd_vma secaddr;
821 (*info->fprintf_func) (info->stream, " <%s",
822 bfd_get_section_name (abfd, sec));
823 secaddr = bfd_get_section_vma (abfd, sec);
824 if (vma < secaddr)
826 (*info->fprintf_func) (info->stream, "-0x");
827 objdump_print_value (secaddr - vma, info, TRUE);
829 else if (vma > secaddr)
831 (*info->fprintf_func) (info->stream, "+0x");
832 objdump_print_value (vma - secaddr, info, TRUE);
834 (*info->fprintf_func) (info->stream, ">");
836 else
838 (*info->fprintf_func) (info->stream, " <");
839 objdump_print_symname (abfd, info, sym);
840 if (bfd_asymbol_value (sym) > vma)
842 (*info->fprintf_func) (info->stream, "-0x");
843 objdump_print_value (bfd_asymbol_value (sym) - vma, info, TRUE);
845 else if (vma > bfd_asymbol_value (sym))
847 (*info->fprintf_func) (info->stream, "+0x");
848 objdump_print_value (vma - bfd_asymbol_value (sym), info, TRUE);
850 (*info->fprintf_func) (info->stream, ">");
854 /* Print an address (VMA), symbolically if possible.
855 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
857 static void
858 objdump_print_addr (bfd_vma vma,
859 struct disassemble_info *info,
860 bfd_boolean skip_zeroes)
862 struct objdump_disasm_info *aux;
863 asymbol *sym = NULL; /* Initialize to avoid compiler warning. */
864 #ifdef DISASSEMBLER_NEEDS_RELOCS
865 bfd_boolean skip_find = FALSE;
866 #endif
868 if (sorted_symcount < 1)
870 (*info->fprintf_func) (info->stream, "0x");
871 objdump_print_value (vma, info, skip_zeroes);
872 return;
875 aux = (struct objdump_disasm_info *) info->application_data;
877 #ifdef DISASSEMBLER_NEEDS_RELOCS
878 if (aux->reloc != NULL
879 && aux->reloc->sym_ptr_ptr != NULL
880 && * aux->reloc->sym_ptr_ptr != NULL)
882 sym = * aux->reloc->sym_ptr_ptr;
884 /* Adjust the vma to the reloc. */
885 vma += bfd_asymbol_value (sym);
887 if (bfd_is_und_section (bfd_get_section (sym)))
888 skip_find = TRUE;
891 if (!skip_find)
892 #endif
893 sym = find_symbol_for_address (vma, info, NULL);
895 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
896 skip_zeroes);
899 /* Print VMA to INFO. This function is passed to the disassembler
900 routine. */
902 static void
903 objdump_print_address (bfd_vma vma, struct disassemble_info *info)
905 objdump_print_addr (vma, info, ! prefix_addresses);
908 /* Determine of the given address has a symbol associated with it. */
910 static int
911 objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * info)
913 asymbol * sym;
915 sym = find_symbol_for_address (vma, info, NULL);
917 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
920 /* Hold the last function name and the last line number we displayed
921 in a disassembly. */
923 static char *prev_functionname;
924 static unsigned int prev_line;
926 /* We keep a list of all files that we have seen when doing a
927 disassembly with source, so that we know how much of the file to
928 display. This can be important for inlined functions. */
930 struct print_file_list
932 struct print_file_list *next;
933 const char *filename;
934 const char *modname;
935 unsigned int line;
936 FILE *f;
939 static struct print_file_list *print_files;
941 /* The number of preceding context lines to show when we start
942 displaying a file for the first time. */
944 #define SHOW_PRECEDING_CONTEXT_LINES (5)
946 /* Tries to open MODNAME, and if successful adds a node to print_files
947 linked list and returns that node. Returns NULL on failure. */
949 static struct print_file_list *
950 try_print_file_open (const char *origname, const char *modname)
952 struct print_file_list *p;
953 FILE *f;
955 f = fopen (modname, "r");
956 if (f == NULL)
957 return NULL;
959 if (print_files != NULL && print_files->f != NULL)
961 fclose (print_files->f);
962 print_files->f = NULL;
965 p = xmalloc (sizeof (struct print_file_list));
966 p->filename = origname;
967 p->modname = modname;
968 p->line = 0;
969 p->f = f;
970 p->next = print_files;
971 print_files = p;
972 return p;
975 /* If the the source file, as described in the symtab, is not found
976 try to locate it in one of the paths specified with -I
977 If found, add location to print_files linked list. */
979 static struct print_file_list *
980 update_source_path (const char *filename)
982 struct print_file_list *p;
983 const char *fname;
984 int i;
986 if (filename == NULL)
987 return NULL;
989 p = try_print_file_open (filename, filename);
990 if (p != NULL)
991 return p;
993 if (include_path_count == 0)
994 return NULL;
996 /* Get the name of the file. */
997 fname = strrchr (filename, '/');
998 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1000 /* We could have a mixed forward/back slash case. */
1001 char *backslash = strrchr (filename, '\\');
1002 if (fname == NULL || (backslash != NULL && backslash > fname))
1003 fname = backslash;
1004 if (fname == NULL && filename[0] != '\0' && filename[1] == ':')
1005 fname = filename + 1;
1007 #endif
1008 if (fname == NULL)
1009 fname = filename;
1010 else
1011 ++fname;
1013 /* If file exists under a new path, we need to add it to the list
1014 so that show_line knows about it. */
1015 for (i = 0; i < include_path_count; i++)
1017 char *modname = concat (include_paths[i], "/", fname, (const char *) 0);
1019 p = try_print_file_open (filename, modname);
1020 if (p)
1021 return p;
1023 free (modname);
1026 return NULL;
1029 /* Skip ahead to a given line in a file, optionally printing each
1030 line. */
1032 static void
1033 skip_to_line (struct print_file_list *p, unsigned int line,
1034 bfd_boolean show)
1036 while (p->line < line)
1038 char buf[100];
1040 if (fgets (buf, sizeof buf, p->f) == NULL)
1042 fclose (p->f);
1043 p->f = NULL;
1044 break;
1047 if (show)
1048 printf ("%s", buf);
1050 if (strchr (buf, '\n') != NULL)
1051 ++p->line;
1055 /* Show the line number, or the source line, in a disassembly
1056 listing. */
1058 static void
1059 show_line (bfd *abfd, asection *section, bfd_vma addr_offset)
1061 const char *filename;
1062 const char *functionname;
1063 unsigned int line;
1065 if (! with_line_numbers && ! with_source_code)
1066 return;
1068 if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
1069 &functionname, &line))
1070 return;
1072 if (filename != NULL && *filename == '\0')
1073 filename = NULL;
1074 if (functionname != NULL && *functionname == '\0')
1075 functionname = NULL;
1077 if (with_line_numbers)
1079 if (functionname != NULL
1080 && (prev_functionname == NULL
1081 || strcmp (functionname, prev_functionname) != 0))
1082 printf ("%s():\n", functionname);
1083 if (line > 0 && line != prev_line)
1084 printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
1087 if (with_source_code
1088 && filename != NULL
1089 && line > 0)
1091 struct print_file_list **pp, *p;
1093 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1094 if (strcmp ((*pp)->filename, filename) == 0)
1095 break;
1096 p = *pp;
1098 if (p != NULL)
1100 if (p != print_files)
1102 int l;
1104 /* We have reencountered a file name which we saw
1105 earlier. This implies that either we are dumping out
1106 code from an included file, or the same file was
1107 linked in more than once. There are two common cases
1108 of an included file: inline functions in a header
1109 file, and a bison or flex skeleton file. In the
1110 former case we want to just start printing (but we
1111 back up a few lines to give context); in the latter
1112 case we want to continue from where we left off. I
1113 can't think of a good way to distinguish the cases,
1114 so I used a heuristic based on the file name. */
1115 if (strcmp (p->filename + strlen (p->filename) - 2, ".h") != 0)
1116 l = p->line;
1117 else
1119 l = line - SHOW_PRECEDING_CONTEXT_LINES;
1120 if (l < 0)
1121 l = 0;
1124 if (p->f == NULL)
1126 p->f = fopen (p->modname, "r");
1127 p->line = 0;
1129 if (p->f != NULL)
1130 skip_to_line (p, l, FALSE);
1132 if (print_files->f != NULL)
1134 fclose (print_files->f);
1135 print_files->f = NULL;
1139 if (p->f != NULL)
1141 skip_to_line (p, line, TRUE);
1142 *pp = p->next;
1143 p->next = print_files;
1144 print_files = p;
1147 else
1149 p = update_source_path (filename);
1151 if (p != NULL)
1153 int l;
1155 if (file_start_context)
1156 l = 0;
1157 else
1158 l = line - SHOW_PRECEDING_CONTEXT_LINES;
1159 if (l < 0)
1160 l = 0;
1161 skip_to_line (p, l, FALSE);
1162 if (p->f != NULL)
1163 skip_to_line (p, line, TRUE);
1168 if (functionname != NULL
1169 && (prev_functionname == NULL
1170 || strcmp (functionname, prev_functionname) != 0))
1172 if (prev_functionname != NULL)
1173 free (prev_functionname);
1174 prev_functionname = xmalloc (strlen (functionname) + 1);
1175 strcpy (prev_functionname, functionname);
1178 if (line > 0 && line != prev_line)
1179 prev_line = line;
1182 /* Pseudo FILE object for strings. */
1183 typedef struct
1185 char *buffer;
1186 size_t pos;
1187 size_t alloc;
1188 } SFILE;
1190 /* sprintf to a "stream". */
1192 static int ATTRIBUTE_PRINTF_2
1193 objdump_sprintf (SFILE *f, const char *format, ...)
1195 size_t n;
1196 va_list args;
1198 while (1)
1200 size_t space = f->alloc - f->pos;
1202 va_start (args, format);
1203 n = vsnprintf (f->buffer + f->pos, space, format, args);
1204 va_end (args);
1206 if (space > n)
1207 break;
1209 f->alloc = (f->alloc + n) * 2;
1210 f->buffer = xrealloc (f->buffer, f->alloc);
1212 f->pos += n;
1214 return n;
1217 /* Returns TRUE if the specified section should be dumped. */
1219 static bfd_boolean
1220 process_section_p (asection * section)
1222 size_t i;
1224 if (only == NULL)
1225 return TRUE;
1227 for (i = 0; i < only_used; i++)
1228 if (strcmp (only [i], section->name) == 0)
1229 return TRUE;
1231 return FALSE;
1235 /* The number of zeroes we want to see before we start skipping them.
1236 The number is arbitrarily chosen. */
1238 #define DEFAULT_SKIP_ZEROES 8
1240 /* The number of zeroes to skip at the end of a section. If the
1241 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1242 SKIP_ZEROES, they will be disassembled. If there are fewer than
1243 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1244 attempt to avoid disassembling zeroes inserted by section
1245 alignment. */
1247 #define DEFAULT_SKIP_ZEROES_AT_END 3
1249 /* Disassemble some data in memory between given values. */
1251 static void
1252 disassemble_bytes (struct disassemble_info * info,
1253 disassembler_ftype disassemble_fn,
1254 bfd_boolean insns,
1255 bfd_byte * data,
1256 bfd_vma start_offset,
1257 bfd_vma stop_offset,
1258 bfd_vma rel_offset,
1259 arelent *** relppp,
1260 arelent ** relppend)
1262 struct objdump_disasm_info *aux;
1263 asection *section;
1264 int octets_per_line;
1265 bfd_boolean done_dot;
1266 int skip_addr_chars;
1267 bfd_vma addr_offset;
1268 unsigned int opb = info->octets_per_byte;
1269 unsigned int skip_zeroes = info->skip_zeroes;
1270 unsigned int skip_zeroes_at_end = info->skip_zeroes_at_end;
1271 int octets = opb;
1272 SFILE sfile;
1274 aux = (struct objdump_disasm_info *) info->application_data;
1275 section = aux->sec;
1277 sfile.alloc = 120;
1278 sfile.buffer = xmalloc (sfile.alloc);
1279 sfile.pos = 0;
1281 if (insns)
1282 octets_per_line = 4;
1283 else
1284 octets_per_line = 16;
1286 /* Figure out how many characters to skip at the start of an
1287 address, to make the disassembly look nicer. We discard leading
1288 zeroes in chunks of 4, ensuring that there is always a leading
1289 zero remaining. */
1290 skip_addr_chars = 0;
1291 if (! prefix_addresses)
1293 char buf[30];
1294 char *s;
1296 bfd_sprintf_vma
1297 (aux->abfd, buf,
1298 (section->vma
1299 + bfd_section_size (section->owner, section) / opb));
1300 s = buf;
1301 while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0'
1302 && s[4] == '0')
1304 skip_addr_chars += 4;
1305 s += 4;
1309 info->insn_info_valid = 0;
1311 done_dot = FALSE;
1312 addr_offset = start_offset;
1313 while (addr_offset < stop_offset)
1315 bfd_vma z;
1316 bfd_boolean need_nl = FALSE;
1317 #ifdef DISASSEMBLER_NEEDS_RELOCS
1318 int previous_octets;
1320 /* Remember the length of the previous instruction. */
1321 previous_octets = octets;
1322 #endif
1323 octets = 0;
1325 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1326 print `...'. */
1327 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1328 if (data[z] != 0)
1329 break;
1330 if (! disassemble_zeroes
1331 && (info->insn_info_valid == 0
1332 || info->branch_delay_insns == 0)
1333 && (z - addr_offset * opb >= skip_zeroes
1334 || (z == stop_offset * opb &&
1335 z - addr_offset * opb < skip_zeroes_at_end)))
1337 printf ("\t...\n");
1339 /* If there are more nonzero octets to follow, we only skip
1340 zeroes in multiples of 4, to try to avoid running over
1341 the start of an instruction which happens to start with
1342 zero. */
1343 if (z != stop_offset * opb)
1344 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1346 octets = z - addr_offset * opb;
1348 else
1350 char buf[50];
1351 int bpc = 0;
1352 int pb = 0;
1354 done_dot = FALSE;
1356 if (with_line_numbers || with_source_code)
1357 /* The line number tables will refer to unadjusted
1358 section VMAs, so we must undo any VMA modifications
1359 when calling show_line. */
1360 show_line (aux->abfd, section, addr_offset - adjust_section_vma);
1362 if (! prefix_addresses)
1364 char *s;
1366 bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset);
1367 for (s = buf + skip_addr_chars; *s == '0'; s++)
1368 *s = ' ';
1369 if (*s == '\0')
1370 *--s = '0';
1371 printf ("%s:\t", buf + skip_addr_chars);
1373 else
1375 aux->require_sec = TRUE;
1376 objdump_print_address (section->vma + addr_offset, info);
1377 aux->require_sec = FALSE;
1378 putchar (' ');
1381 if (insns)
1383 sfile.pos = 0;
1384 info->fprintf_func = (fprintf_ftype) objdump_sprintf;
1385 info->stream = &sfile;
1386 info->bytes_per_line = 0;
1387 info->bytes_per_chunk = 0;
1388 info->flags = 0;
1390 #ifdef DISASSEMBLER_NEEDS_RELOCS
1391 if (*relppp < relppend)
1393 bfd_signed_vma distance_to_rel;
1395 distance_to_rel = (**relppp)->address
1396 - (rel_offset + addr_offset);
1398 /* Check to see if the current reloc is associated with
1399 the instruction that we are about to disassemble. */
1400 if (distance_to_rel == 0
1401 /* FIXME: This is wrong. We are trying to catch
1402 relocs that are addressed part way through the
1403 current instruction, as might happen with a packed
1404 VLIW instruction. Unfortunately we do not know the
1405 length of the current instruction since we have not
1406 disassembled it yet. Instead we take a guess based
1407 upon the length of the previous instruction. The
1408 proper solution is to have a new target-specific
1409 disassembler function which just returns the length
1410 of an instruction at a given address without trying
1411 to display its disassembly. */
1412 || (distance_to_rel > 0
1413 && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
1415 info->flags = INSN_HAS_RELOC;
1416 aux->reloc = **relppp;
1418 else
1419 aux->reloc = NULL;
1421 #endif
1422 octets = (*disassemble_fn) (section->vma + addr_offset, info);
1423 info->fprintf_func = (fprintf_ftype) fprintf;
1424 info->stream = stdout;
1425 if (info->bytes_per_line != 0)
1426 octets_per_line = info->bytes_per_line;
1427 if (octets < 0)
1429 if (sfile.pos)
1430 printf ("%s\n", sfile.buffer);
1431 break;
1434 else
1436 bfd_vma j;
1438 octets = octets_per_line;
1439 if (addr_offset + octets / opb > stop_offset)
1440 octets = (stop_offset - addr_offset) * opb;
1442 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1444 if (ISPRINT (data[j]))
1445 buf[j - addr_offset * opb] = data[j];
1446 else
1447 buf[j - addr_offset * opb] = '.';
1449 buf[j - addr_offset * opb] = '\0';
1452 if (prefix_addresses
1453 ? show_raw_insn > 0
1454 : show_raw_insn >= 0)
1456 bfd_vma j;
1458 /* If ! prefix_addresses and ! wide_output, we print
1459 octets_per_line octets per line. */
1460 pb = octets;
1461 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1462 pb = octets_per_line;
1464 if (info->bytes_per_chunk)
1465 bpc = info->bytes_per_chunk;
1466 else
1467 bpc = 1;
1469 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1471 int k;
1473 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1475 for (k = bpc - 1; k >= 0; k--)
1476 printf ("%02x", (unsigned) data[j + k]);
1477 putchar (' ');
1479 else
1481 for (k = 0; k < bpc; k++)
1482 printf ("%02x", (unsigned) data[j + k]);
1483 putchar (' ');
1487 for (; pb < octets_per_line; pb += bpc)
1489 int k;
1491 for (k = 0; k < bpc; k++)
1492 printf (" ");
1493 putchar (' ');
1496 /* Separate raw data from instruction by extra space. */
1497 if (insns)
1498 putchar ('\t');
1499 else
1500 printf (" ");
1503 if (! insns)
1504 printf ("%s", buf);
1505 else if (sfile.pos)
1506 printf ("%s", sfile.buffer);
1508 if (prefix_addresses
1509 ? show_raw_insn > 0
1510 : show_raw_insn >= 0)
1512 while (pb < octets)
1514 bfd_vma j;
1515 char *s;
1517 putchar ('\n');
1518 j = addr_offset * opb + pb;
1520 bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb);
1521 for (s = buf + skip_addr_chars; *s == '0'; s++)
1522 *s = ' ';
1523 if (*s == '\0')
1524 *--s = '0';
1525 printf ("%s:\t", buf + skip_addr_chars);
1527 pb += octets_per_line;
1528 if (pb > octets)
1529 pb = octets;
1530 for (; j < addr_offset * opb + pb; j += bpc)
1532 int k;
1534 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1536 for (k = bpc - 1; k >= 0; k--)
1537 printf ("%02x", (unsigned) data[j + k]);
1538 putchar (' ');
1540 else
1542 for (k = 0; k < bpc; k++)
1543 printf ("%02x", (unsigned) data[j + k]);
1544 putchar (' ');
1550 if (!wide_output)
1551 putchar ('\n');
1552 else
1553 need_nl = TRUE;
1556 while ((*relppp) < relppend
1557 && (**relppp)->address < rel_offset + addr_offset + octets / opb)
1559 if (dump_reloc_info || dump_dynamic_reloc_info)
1561 arelent *q;
1563 q = **relppp;
1565 if (wide_output)
1566 putchar ('\t');
1567 else
1568 printf ("\t\t\t");
1570 objdump_print_value (section->vma - rel_offset + q->address,
1571 info, TRUE);
1573 if (q->howto == NULL)
1574 printf (": *unknown*\t");
1575 else if (q->howto->name)
1576 printf (": %s\t", q->howto->name);
1577 else
1578 printf (": %d\t", q->howto->type);
1580 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1581 printf ("*unknown*");
1582 else
1584 const char *sym_name;
1586 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1587 if (sym_name != NULL && *sym_name != '\0')
1588 objdump_print_symname (aux->abfd, info, *q->sym_ptr_ptr);
1589 else
1591 asection *sym_sec;
1593 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1594 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1595 if (sym_name == NULL || *sym_name == '\0')
1596 sym_name = "*unknown*";
1597 printf ("%s", sym_name);
1601 if (q->addend)
1603 printf ("+0x");
1604 objdump_print_value (q->addend, info, TRUE);
1607 printf ("\n");
1608 need_nl = FALSE;
1610 ++(*relppp);
1613 if (need_nl)
1614 printf ("\n");
1616 addr_offset += octets / opb;
1619 free (sfile.buffer);
1622 static void
1623 disassemble_section (bfd *abfd, asection *section, void *info)
1625 struct disassemble_info * pinfo = (struct disassemble_info *) info;
1626 struct objdump_disasm_info * paux;
1627 unsigned int opb = pinfo->octets_per_byte;
1628 bfd_byte * data = NULL;
1629 bfd_size_type datasize = 0;
1630 arelent ** rel_pp = NULL;
1631 arelent ** rel_ppstart = NULL;
1632 arelent ** rel_ppend;
1633 unsigned long stop_offset;
1634 asymbol * sym = NULL;
1635 long place = 0;
1636 long rel_count;
1637 bfd_vma rel_offset;
1638 unsigned long addr_offset;
1640 /* Sections that do not contain machine
1641 code are not normally disassembled. */
1642 if (! disassemble_all
1643 && only == NULL
1644 && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
1645 != (SEC_CODE | SEC_HAS_CONTENTS)))
1646 return;
1648 if (! process_section_p (section))
1649 return;
1651 datasize = bfd_get_section_size (section);
1652 if (datasize == 0)
1653 return;
1655 /* Decide which set of relocs to use. Load them if necessary. */
1656 paux = (struct objdump_disasm_info *) pinfo->application_data;
1657 if (paux->dynrelbuf)
1659 rel_pp = paux->dynrelbuf;
1660 rel_count = paux->dynrelcount;
1661 /* Dynamic reloc addresses are absolute, non-dynamic are section
1662 relative. REL_OFFSET specifies the reloc address corresponding
1663 to the start of this section. */
1664 rel_offset = section->vma;
1666 else
1668 rel_count = 0;
1669 rel_pp = NULL;
1670 rel_offset = 0;
1672 if ((section->flags & SEC_RELOC) != 0
1673 #ifndef DISASSEMBLER_NEEDS_RELOCS
1674 && dump_reloc_info
1675 #endif
1678 long relsize;
1680 relsize = bfd_get_reloc_upper_bound (abfd, section);
1681 if (relsize < 0)
1682 bfd_fatal (bfd_get_filename (abfd));
1684 if (relsize > 0)
1686 rel_ppstart = rel_pp = xmalloc (relsize);
1687 rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms);
1688 if (rel_count < 0)
1689 bfd_fatal (bfd_get_filename (abfd));
1691 /* Sort the relocs by address. */
1692 qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs);
1697 rel_ppend = rel_pp + rel_count;
1699 data = xmalloc (datasize);
1701 bfd_get_section_contents (abfd, section, data, 0, datasize);
1703 paux->sec = section;
1704 pinfo->buffer = data;
1705 pinfo->buffer_vma = section->vma;
1706 pinfo->buffer_length = datasize;
1707 pinfo->section = section;
1709 if (start_address == (bfd_vma) -1
1710 || start_address < pinfo->buffer_vma)
1711 addr_offset = 0;
1712 else
1713 addr_offset = start_address - pinfo->buffer_vma;
1715 if (stop_address == (bfd_vma) -1)
1716 stop_offset = datasize / opb;
1717 else
1719 if (stop_address < pinfo->buffer_vma)
1720 stop_offset = 0;
1721 else
1722 stop_offset = stop_address - pinfo->buffer_vma;
1723 if (stop_offset > pinfo->buffer_length / opb)
1724 stop_offset = pinfo->buffer_length / opb;
1727 /* Skip over the relocs belonging to addresses below the
1728 start address. */
1729 while (rel_pp < rel_ppend
1730 && (*rel_pp)->address < rel_offset + addr_offset)
1731 ++rel_pp;
1733 printf (_("Disassembly of section %s:\n"), section->name);
1735 /* Find the nearest symbol forwards from our current position. */
1736 paux->require_sec = TRUE;
1737 sym = find_symbol_for_address (section->vma + addr_offset, info, &place);
1738 paux->require_sec = FALSE;
1740 /* Disassemble a block of instructions up to the address associated with
1741 the symbol we have just found. Then print the symbol and find the
1742 next symbol on. Repeat until we have disassembled the entire section
1743 or we have reached the end of the address range we are interested in. */
1744 while (addr_offset < stop_offset)
1746 bfd_vma addr;
1747 asymbol *nextsym;
1748 unsigned long nextstop_offset;
1749 bfd_boolean insns;
1751 addr = section->vma + addr_offset;
1753 if (sym != NULL && bfd_asymbol_value (sym) <= addr)
1755 int x;
1757 for (x = place;
1758 (x < sorted_symcount
1759 && (bfd_asymbol_value (sorted_syms[x]) <= addr));
1760 ++x)
1761 continue;
1763 pinfo->symbols = sorted_syms + place;
1764 pinfo->num_symbols = x - place;
1766 else
1768 pinfo->symbols = NULL;
1769 pinfo->num_symbols = 0;
1772 if (! prefix_addresses)
1774 pinfo->fprintf_func (pinfo->stream, "\n");
1775 objdump_print_addr_with_sym (abfd, section, sym, addr,
1776 pinfo, FALSE);
1777 pinfo->fprintf_func (pinfo->stream, ":\n");
1780 if (sym != NULL && bfd_asymbol_value (sym) > addr)
1781 nextsym = sym;
1782 else if (sym == NULL)
1783 nextsym = NULL;
1784 else
1786 #define is_valid_next_sym(SYM) \
1787 ((SYM)->section == section \
1788 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
1789 && pinfo->symbol_is_valid (SYM, pinfo))
1791 /* Search forward for the next appropriate symbol in
1792 SECTION. Note that all the symbols are sorted
1793 together into one big array, and that some sections
1794 may have overlapping addresses. */
1795 while (place < sorted_symcount
1796 && ! is_valid_next_sym (sorted_syms [place]))
1797 ++place;
1799 if (place >= sorted_symcount)
1800 nextsym = NULL;
1801 else
1802 nextsym = sorted_syms[place];
1805 if (sym != NULL && bfd_asymbol_value (sym) > addr)
1806 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
1807 else if (nextsym == NULL)
1808 nextstop_offset = stop_offset;
1809 else
1810 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
1812 if (nextstop_offset > stop_offset)
1813 nextstop_offset = stop_offset;
1815 /* If a symbol is explicitly marked as being an object
1816 rather than a function, just dump the bytes without
1817 disassembling them. */
1818 if (disassemble_all
1819 || sym == NULL
1820 || bfd_asymbol_value (sym) > addr
1821 || ((sym->flags & BSF_OBJECT) == 0
1822 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
1823 == NULL)
1824 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
1825 == NULL))
1826 || (sym->flags & BSF_FUNCTION) != 0)
1827 insns = TRUE;
1828 else
1829 insns = FALSE;
1831 disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
1832 addr_offset, nextstop_offset,
1833 rel_offset, &rel_pp, rel_ppend);
1835 addr_offset = nextstop_offset;
1836 sym = nextsym;
1839 free (data);
1841 if (rel_ppstart != NULL)
1842 free (rel_ppstart);
1845 /* Disassemble the contents of an object file. */
1847 static void
1848 disassemble_data (bfd *abfd)
1850 struct disassemble_info disasm_info;
1851 struct objdump_disasm_info aux;
1852 long i;
1854 print_files = NULL;
1855 prev_functionname = NULL;
1856 prev_line = -1;
1858 /* We make a copy of syms to sort. We don't want to sort syms
1859 because that will screw up the relocs. */
1860 sorted_symcount = symcount ? symcount : dynsymcount;
1861 sorted_syms = xmalloc ((sorted_symcount + synthcount) * sizeof (asymbol *));
1862 memcpy (sorted_syms, symcount ? syms : dynsyms,
1863 sorted_symcount * sizeof (asymbol *));
1865 sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
1867 for (i = 0; i < synthcount; ++i)
1869 sorted_syms[sorted_symcount] = synthsyms + i;
1870 ++sorted_symcount;
1873 /* Sort the symbols into section and symbol order. */
1874 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
1876 init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
1878 disasm_info.application_data = (void *) &aux;
1879 aux.abfd = abfd;
1880 aux.require_sec = FALSE;
1881 aux.dynrelbuf = NULL;
1882 aux.dynrelcount = 0;
1883 #ifdef DISASSEMBLER_NEEDS_RELOCS
1884 aux.reloc = NULL;
1885 #endif
1887 disasm_info.print_address_func = objdump_print_address;
1888 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
1890 if (machine != NULL)
1892 const bfd_arch_info_type *info = bfd_scan_arch (machine);
1894 if (info == NULL)
1895 fatal (_("Can't use supplied machine %s"), machine);
1897 abfd->arch_info = info;
1900 if (endian != BFD_ENDIAN_UNKNOWN)
1902 struct bfd_target *xvec;
1904 xvec = xmalloc (sizeof (struct bfd_target));
1905 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
1906 xvec->byteorder = endian;
1907 abfd->xvec = xvec;
1910 /* Use libopcodes to locate a suitable disassembler. */
1911 aux.disassemble_fn = disassembler (abfd);
1912 if (!aux.disassemble_fn)
1914 non_fatal (_("Can't disassemble for architecture %s\n"),
1915 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
1916 exit_status = 1;
1917 return;
1920 disasm_info.flavour = bfd_get_flavour (abfd);
1921 disasm_info.arch = bfd_get_arch (abfd);
1922 disasm_info.mach = bfd_get_mach (abfd);
1923 disasm_info.disassembler_options = disassembler_options;
1924 disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
1925 disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
1926 disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
1928 if (bfd_big_endian (abfd))
1929 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
1930 else if (bfd_little_endian (abfd))
1931 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
1932 else
1933 /* ??? Aborting here seems too drastic. We could default to big or little
1934 instead. */
1935 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
1937 /* Allow the target to customize the info structure. */
1938 disassemble_init_for_target (& disasm_info);
1940 /* Pre-load the dynamic relocs if we are going
1941 to be dumping them along with the disassembly. */
1942 if (dump_dynamic_reloc_info)
1944 long relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
1946 if (relsize < 0)
1947 bfd_fatal (bfd_get_filename (abfd));
1949 if (relsize > 0)
1951 aux.dynrelbuf = xmalloc (relsize);
1952 aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
1953 aux.dynrelbuf,
1954 dynsyms);
1955 if (aux.dynrelcount < 0)
1956 bfd_fatal (bfd_get_filename (abfd));
1958 /* Sort the relocs by address. */
1959 qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
1960 compare_relocs);
1964 bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
1966 if (aux.dynrelbuf != NULL)
1967 free (aux.dynrelbuf);
1968 free (sorted_syms);
1971 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
1972 it. Return NULL on failure. */
1974 static char *
1975 read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
1977 asection *stabsect;
1978 bfd_size_type size;
1979 char *contents;
1981 stabsect = bfd_get_section_by_name (abfd, sect_name);
1982 if (stabsect == NULL)
1984 printf (_("No %s section present\n\n"), sect_name);
1985 return FALSE;
1988 size = bfd_section_size (abfd, stabsect);
1989 contents = xmalloc (size);
1991 if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
1993 non_fatal (_("Reading %s section of %s failed: %s"),
1994 sect_name, bfd_get_filename (abfd),
1995 bfd_errmsg (bfd_get_error ()));
1996 free (contents);
1997 exit_status = 1;
1998 return NULL;
2001 *size_ptr = size;
2003 return contents;
2006 /* Stabs entries use a 12 byte format:
2007 4 byte string table index
2008 1 byte stab type
2009 1 byte stab other field
2010 2 byte stab desc field
2011 4 byte stab value
2012 FIXME: This will have to change for a 64 bit object format. */
2014 #define STRDXOFF (0)
2015 #define TYPEOFF (4)
2016 #define OTHEROFF (5)
2017 #define DESCOFF (6)
2018 #define VALOFF (8)
2019 #define STABSIZE (12)
2021 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
2022 using string table section STRSECT_NAME (in `strtab'). */
2024 static void
2025 print_section_stabs (bfd *abfd,
2026 const char *stabsect_name,
2027 unsigned *string_offset_ptr)
2029 int i;
2030 unsigned file_string_table_offset = 0;
2031 unsigned next_file_string_table_offset = *string_offset_ptr;
2032 bfd_byte *stabp, *stabs_end;
2034 stabp = stabs;
2035 stabs_end = stabp + stab_size;
2037 printf (_("Contents of %s section:\n\n"), stabsect_name);
2038 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
2040 /* Loop through all symbols and print them.
2042 We start the index at -1 because there is a dummy symbol on
2043 the front of stabs-in-{coff,elf} sections that supplies sizes. */
2044 for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
2046 const char *name;
2047 unsigned long strx;
2048 unsigned char type, other;
2049 unsigned short desc;
2050 bfd_vma value;
2052 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
2053 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
2054 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
2055 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
2056 value = bfd_h_get_32 (abfd, stabp + VALOFF);
2058 printf ("\n%-6d ", i);
2059 /* Either print the stab name, or, if unnamed, print its number
2060 again (makes consistent formatting for tools like awk). */
2061 name = bfd_get_stab_name (type);
2062 if (name != NULL)
2063 printf ("%-6s", name);
2064 else if (type == N_UNDF)
2065 printf ("HdrSym");
2066 else
2067 printf ("%-6d", type);
2068 printf (" %-6d %-6d ", other, desc);
2069 bfd_printf_vma (abfd, value);
2070 printf (" %-6lu", strx);
2072 /* Symbols with type == 0 (N_UNDF) specify the length of the
2073 string table associated with this file. We use that info
2074 to know how to relocate the *next* file's string table indices. */
2075 if (type == N_UNDF)
2077 file_string_table_offset = next_file_string_table_offset;
2078 next_file_string_table_offset += value;
2080 else
2082 /* Using the (possibly updated) string table offset, print the
2083 string (if any) associated with this symbol. */
2084 if ((strx + file_string_table_offset) < stabstr_size)
2085 printf (" %s", &strtab[strx + file_string_table_offset]);
2086 else
2087 printf (" *");
2090 printf ("\n\n");
2091 *string_offset_ptr = next_file_string_table_offset;
2094 typedef struct
2096 const char * section_name;
2097 const char * string_section_name;
2098 unsigned string_offset;
2100 stab_section_names;
2102 static void
2103 find_stabs_section (bfd *abfd, asection *section, void *names)
2105 int len;
2106 stab_section_names * sought = (stab_section_names *) names;
2108 /* Check for section names for which stabsect_name is a prefix, to
2109 handle .stab.N, etc. */
2110 len = strlen (sought->section_name);
2112 /* If the prefix matches, and the files section name ends with a
2113 nul or a digit, then we match. I.e., we want either an exact
2114 match or a section followed by a number. */
2115 if (strncmp (sought->section_name, section->name, len) == 0
2116 && (section->name[len] == 0
2117 || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
2119 if (strtab == NULL)
2120 strtab = read_section_stabs (abfd, sought->string_section_name,
2121 &stabstr_size);
2123 if (strtab)
2125 stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
2126 &stab_size);
2127 if (stabs)
2128 print_section_stabs (abfd, section->name, &sought->string_offset);
2133 static void
2134 dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name)
2136 stab_section_names s;
2138 s.section_name = stabsect_name;
2139 s.string_section_name = strsect_name;
2140 s.string_offset = 0;
2142 bfd_map_over_sections (abfd, find_stabs_section, & s);
2144 free (strtab);
2145 strtab = NULL;
2148 /* Dump the any sections containing stabs debugging information. */
2150 static void
2151 dump_stabs (bfd *abfd)
2153 dump_stabs_section (abfd, ".stab", ".stabstr");
2154 dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr");
2155 dump_stabs_section (abfd, ".stab.index", ".stab.indexstr");
2156 dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
2159 static void
2160 dump_bfd_header (bfd *abfd)
2162 char *comma = "";
2164 printf (_("architecture: %s, "),
2165 bfd_printable_arch_mach (bfd_get_arch (abfd),
2166 bfd_get_mach (abfd)));
2167 printf (_("flags 0x%08x:\n"), abfd->flags);
2169 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2170 PF (HAS_RELOC, "HAS_RELOC");
2171 PF (EXEC_P, "EXEC_P");
2172 PF (HAS_LINENO, "HAS_LINENO");
2173 PF (HAS_DEBUG, "HAS_DEBUG");
2174 PF (HAS_SYMS, "HAS_SYMS");
2175 PF (HAS_LOCALS, "HAS_LOCALS");
2176 PF (DYNAMIC, "DYNAMIC");
2177 PF (WP_TEXT, "WP_TEXT");
2178 PF (D_PAGED, "D_PAGED");
2179 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
2180 PF (HAS_LOAD_PAGE, "HAS_LOAD_PAGE");
2181 printf (_("\nstart address 0x"));
2182 bfd_printf_vma (abfd, abfd->start_address);
2183 printf ("\n");
2187 static void
2188 dump_bfd_private_header (bfd *abfd)
2190 bfd_print_private_bfd_data (abfd, stdout);
2194 /* Display a section in hexadecimal format with associated characters.
2195 Each line prefixed by the zero padded address. */
2197 static void
2198 dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
2200 bfd_byte *data = 0;
2201 bfd_size_type datasize;
2202 bfd_size_type addr_offset;
2203 bfd_size_type start_offset;
2204 bfd_size_type stop_offset;
2205 unsigned int opb = bfd_octets_per_byte (abfd);
2206 /* Bytes per line. */
2207 const int onaline = 16;
2208 char buf[64];
2209 int count;
2210 int width;
2212 if ((section->flags & SEC_HAS_CONTENTS) == 0)
2213 return;
2215 if (! process_section_p (section))
2216 return;
2218 if ((datasize = bfd_section_size (abfd, section)) == 0)
2219 return;
2221 printf (_("Contents of section %s:\n"), section->name);
2223 data = xmalloc (datasize);
2225 bfd_get_section_contents (abfd, section, data, 0, datasize);
2227 /* Compute the address range to display. */
2228 if (start_address == (bfd_vma) -1
2229 || start_address < section->vma)
2230 start_offset = 0;
2231 else
2232 start_offset = start_address - section->vma;
2234 if (stop_address == (bfd_vma) -1)
2235 stop_offset = datasize / opb;
2236 else
2238 if (stop_address < section->vma)
2239 stop_offset = 0;
2240 else
2241 stop_offset = stop_address - section->vma;
2243 if (stop_offset > datasize / opb)
2244 stop_offset = datasize / opb;
2247 width = 4;
2249 bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
2250 if (strlen (buf) >= sizeof (buf))
2251 abort ();
2253 count = 0;
2254 while (buf[count] == '0' && buf[count+1] != '\0')
2255 count++;
2256 count = strlen (buf) - count;
2257 if (count > width)
2258 width = count;
2260 bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
2261 if (strlen (buf) >= sizeof (buf))
2262 abort ();
2264 count = 0;
2265 while (buf[count] == '0' && buf[count+1] != '\0')
2266 count++;
2267 count = strlen (buf) - count;
2268 if (count > width)
2269 width = count;
2271 for (addr_offset = start_offset;
2272 addr_offset < stop_offset; addr_offset += onaline / opb)
2274 bfd_size_type j;
2276 bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
2277 count = strlen (buf);
2278 if ((size_t) count >= sizeof (buf))
2279 abort ();
2281 putchar (' ');
2282 while (count < width)
2284 putchar ('0');
2285 count++;
2287 fputs (buf + count - width, stdout);
2288 putchar (' ');
2290 for (j = addr_offset * opb;
2291 j < addr_offset * opb + onaline; j++)
2293 if (j < stop_offset * opb)
2294 printf ("%02x", (unsigned) (data[j]));
2295 else
2296 printf (" ");
2297 if ((j & 3) == 3)
2298 printf (" ");
2301 printf (" ");
2302 for (j = addr_offset * opb;
2303 j < addr_offset * opb + onaline; j++)
2305 if (j >= stop_offset * opb)
2306 printf (" ");
2307 else
2308 printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
2310 putchar ('\n');
2312 free (data);
2315 /* Actually display the various requested regions. */
2317 static void
2318 dump_data (bfd *abfd)
2320 bfd_map_over_sections (abfd, dump_section, NULL);
2323 /* Should perhaps share code and display with nm? */
2325 static void
2326 dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
2328 asymbol **current;
2329 long max;
2330 long count;
2332 if (dynamic)
2334 current = dynsyms;
2335 max = dynsymcount;
2336 printf ("DYNAMIC SYMBOL TABLE:\n");
2338 else
2340 current = syms;
2341 max = symcount;
2342 printf ("SYMBOL TABLE:\n");
2345 if (max == 0)
2346 printf (_("no symbols\n"));
2348 for (count = 0; count < max; count++)
2350 bfd *cur_bfd;
2352 if (*current == NULL)
2353 printf (_("no information for symbol number %ld\n"), count);
2355 else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
2356 printf (_("could not determine the type of symbol number %ld\n"),
2357 count);
2359 else if (process_section_p ((* current)->section)
2360 && (dump_special_syms
2361 || !bfd_is_target_special_symbol (cur_bfd, *current)))
2363 const char *name = (*current)->name;
2365 if (do_demangle && name != NULL && *name != '\0')
2367 char *alloc;
2369 /* If we want to demangle the name, we demangle it
2370 here, and temporarily clobber it while calling
2371 bfd_print_symbol. FIXME: This is a gross hack. */
2372 alloc = demangle (cur_bfd, name);
2373 (*current)->name = alloc;
2374 bfd_print_symbol (cur_bfd, stdout, *current,
2375 bfd_print_symbol_all);
2376 (*current)->name = name;
2377 free (alloc);
2379 else
2380 bfd_print_symbol (cur_bfd, stdout, *current,
2381 bfd_print_symbol_all);
2382 printf ("\n");
2385 current++;
2387 printf ("\n\n");
2390 static void
2391 dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount)
2393 arelent **p;
2394 char *last_filename, *last_functionname;
2395 unsigned int last_line;
2397 /* Get column headers lined up reasonably. */
2399 static int width;
2401 if (width == 0)
2403 char buf[30];
2405 bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
2406 width = strlen (buf) - 7;
2408 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2411 last_filename = NULL;
2412 last_functionname = NULL;
2413 last_line = 0;
2415 for (p = relpp; relcount && *p != NULL; p++, relcount--)
2417 arelent *q = *p;
2418 const char *filename, *functionname;
2419 unsigned int line;
2420 const char *sym_name;
2421 const char *section_name;
2423 if (start_address != (bfd_vma) -1
2424 && q->address < start_address)
2425 continue;
2426 if (stop_address != (bfd_vma) -1
2427 && q->address > stop_address)
2428 continue;
2430 if (with_line_numbers
2431 && sec != NULL
2432 && bfd_find_nearest_line (abfd, sec, syms, q->address,
2433 &filename, &functionname, &line))
2435 if (functionname != NULL
2436 && (last_functionname == NULL
2437 || strcmp (functionname, last_functionname) != 0))
2439 printf ("%s():\n", functionname);
2440 if (last_functionname != NULL)
2441 free (last_functionname);
2442 last_functionname = xstrdup (functionname);
2445 if (line > 0
2446 && (line != last_line
2447 || (filename != NULL
2448 && last_filename != NULL
2449 && strcmp (filename, last_filename) != 0)))
2451 printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
2452 last_line = line;
2453 if (last_filename != NULL)
2454 free (last_filename);
2455 if (filename == NULL)
2456 last_filename = NULL;
2457 else
2458 last_filename = xstrdup (filename);
2462 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2464 sym_name = (*(q->sym_ptr_ptr))->name;
2465 section_name = (*(q->sym_ptr_ptr))->section->name;
2467 else
2469 sym_name = NULL;
2470 section_name = NULL;
2473 bfd_printf_vma (abfd, q->address);
2474 if (q->howto == NULL)
2475 printf (" *unknown* ");
2476 else if (q->howto->name)
2477 printf (" %-16s ", q->howto->name);
2478 else
2479 printf (" %-16d ", q->howto->type);
2480 if (sym_name)
2481 objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
2482 else
2484 if (section_name == NULL)
2485 section_name = "*unknown*";
2486 printf ("[%s]", section_name);
2489 if (q->addend)
2491 printf ("+0x");
2492 bfd_printf_vma (abfd, q->addend);
2495 printf ("\n");
2499 static void
2500 dump_relocs_in_section (bfd *abfd,
2501 asection *section,
2502 void *dummy ATTRIBUTE_UNUSED)
2504 arelent **relpp;
2505 long relcount;
2506 long relsize;
2508 if ( bfd_is_abs_section (section)
2509 || bfd_is_und_section (section)
2510 || bfd_is_com_section (section)
2511 || (! process_section_p (section))
2512 || ((section->flags & SEC_RELOC) == 0))
2513 return;
2515 relsize = bfd_get_reloc_upper_bound (abfd, section);
2516 if (relsize < 0)
2517 bfd_fatal (bfd_get_filename (abfd));
2519 printf ("RELOCATION RECORDS FOR [%s]:", section->name);
2521 if (relsize == 0)
2523 printf (" (none)\n\n");
2524 return;
2527 relpp = xmalloc (relsize);
2528 relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
2530 if (relcount < 0)
2531 bfd_fatal (bfd_get_filename (abfd));
2532 else if (relcount == 0)
2533 printf (" (none)\n\n");
2534 else
2536 printf ("\n");
2537 dump_reloc_set (abfd, section, relpp, relcount);
2538 printf ("\n\n");
2540 free (relpp);
2543 static void
2544 dump_relocs (bfd *abfd)
2546 bfd_map_over_sections (abfd, dump_relocs_in_section, NULL);
2549 static void
2550 dump_dynamic_relocs (bfd *abfd)
2552 long relsize;
2553 arelent **relpp;
2554 long relcount;
2556 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2557 if (relsize < 0)
2558 bfd_fatal (bfd_get_filename (abfd));
2560 printf ("DYNAMIC RELOCATION RECORDS");
2562 if (relsize == 0)
2563 printf (" (none)\n\n");
2564 else
2566 relpp = xmalloc (relsize);
2567 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
2569 if (relcount < 0)
2570 bfd_fatal (bfd_get_filename (abfd));
2571 else if (relcount == 0)
2572 printf (" (none)\n\n");
2573 else
2575 printf ("\n");
2576 dump_reloc_set (abfd, NULL, relpp, relcount);
2577 printf ("\n\n");
2579 free (relpp);
2583 /* Creates a table of paths, to search for source files. */
2585 static void
2586 add_include_path (const char *path)
2588 if (path[0] == 0)
2589 return;
2590 include_path_count++;
2591 include_paths = xrealloc (include_paths,
2592 include_path_count * sizeof (*include_paths));
2593 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2594 if (path[1] == ':' && path[2] == 0)
2595 path = concat (path, ".", (const char *) 0);
2596 #endif
2597 include_paths[include_path_count - 1] = path;
2600 static void
2601 adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
2602 asection *section,
2603 void *dummy ATTRIBUTE_UNUSED)
2605 section->vma += adjust_section_vma;
2606 section->lma += adjust_section_vma;
2609 /* Dump selected contents of ABFD. */
2611 static void
2612 dump_bfd (bfd *abfd)
2614 /* If we are adjusting section VMA's, change them all now. Changing
2615 the BFD information is a hack. However, we must do it, or
2616 bfd_find_nearest_line will not do the right thing. */
2617 if (adjust_section_vma != 0)
2618 bfd_map_over_sections (abfd, adjust_addresses, NULL);
2620 if (! dump_debugging_tags)
2621 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
2622 abfd->xvec->name);
2623 if (dump_ar_hdrs)
2624 print_arelt_descr (stdout, abfd, TRUE);
2625 if (dump_file_header)
2626 dump_bfd_header (abfd);
2627 if (dump_private_headers)
2628 dump_bfd_private_header (abfd);
2629 if (! dump_debugging_tags)
2630 putchar ('\n');
2631 if (dump_section_headers)
2632 dump_headers (abfd);
2634 if (dump_symtab || dump_reloc_info || disassemble || dump_debugging)
2635 syms = slurp_symtab (abfd);
2636 if (dump_dynamic_symtab || dump_dynamic_reloc_info
2637 || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
2638 dynsyms = slurp_dynamic_symtab (abfd);
2639 if (disassemble)
2641 synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
2642 dynsymcount, dynsyms, &synthsyms);
2643 if (synthcount < 0)
2644 synthcount = 0;
2647 if (dump_symtab)
2648 dump_symbols (abfd, FALSE);
2649 if (dump_dynamic_symtab)
2650 dump_symbols (abfd, TRUE);
2651 if (dump_stab_section_info)
2652 dump_stabs (abfd);
2653 if (dump_reloc_info && ! disassemble)
2654 dump_relocs (abfd);
2655 if (dump_dynamic_reloc_info && ! disassemble)
2656 dump_dynamic_relocs (abfd);
2657 if (dump_section_contents)
2658 dump_data (abfd);
2659 if (disassemble)
2660 disassemble_data (abfd);
2662 if (dump_debugging)
2664 void *dhandle;
2666 dhandle = read_debugging_info (abfd, syms, symcount);
2667 if (dhandle != NULL)
2669 if (! print_debugging_info (stdout, dhandle, abfd, syms, demangle,
2670 dump_debugging_tags ? TRUE : FALSE))
2672 non_fatal (_("%s: printing debugging information failed"),
2673 bfd_get_filename (abfd));
2674 exit_status = 1;
2679 if (syms)
2681 free (syms);
2682 syms = NULL;
2685 if (dynsyms)
2687 free (dynsyms);
2688 dynsyms = NULL;
2691 if (synthsyms)
2693 free (synthsyms);
2694 synthsyms = NULL;
2697 symcount = 0;
2698 dynsymcount = 0;
2699 synthcount = 0;
2702 static void
2703 display_bfd (bfd *abfd)
2705 char **matching;
2707 if (bfd_check_format_matches (abfd, bfd_object, &matching))
2709 dump_bfd (abfd);
2710 return;
2713 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
2715 nonfatal (bfd_get_filename (abfd));
2716 list_matching_formats (matching);
2717 free (matching);
2718 return;
2721 if (bfd_get_error () != bfd_error_file_not_recognized)
2723 nonfatal (bfd_get_filename (abfd));
2724 return;
2727 if (bfd_check_format_matches (abfd, bfd_core, &matching))
2729 dump_bfd (abfd);
2730 return;
2733 nonfatal (bfd_get_filename (abfd));
2735 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
2737 list_matching_formats (matching);
2738 free (matching);
2742 static void
2743 display_file (char *filename, char *target)
2745 bfd *file;
2746 bfd *arfile = NULL;
2748 if (get_file_size (filename) < 1)
2749 return;
2751 file = bfd_openr (filename, target);
2752 if (file == NULL)
2754 nonfatal (filename);
2755 return;
2758 /* If the file is an archive, process all of its elements. */
2759 if (bfd_check_format (file, bfd_archive))
2761 bfd *last_arfile = NULL;
2763 printf (_("In archive %s:\n"), bfd_get_filename (file));
2764 for (;;)
2766 bfd_set_error (bfd_error_no_error);
2768 arfile = bfd_openr_next_archived_file (file, arfile);
2769 if (arfile == NULL)
2771 if (bfd_get_error () != bfd_error_no_more_archived_files)
2772 nonfatal (bfd_get_filename (file));
2773 break;
2776 display_bfd (arfile);
2778 if (last_arfile != NULL)
2779 bfd_close (last_arfile);
2780 last_arfile = arfile;
2783 if (last_arfile != NULL)
2784 bfd_close (last_arfile);
2786 else
2787 display_bfd (file);
2789 bfd_close (file);
2793 main (int argc, char **argv)
2795 int c;
2796 char *target = default_target;
2797 bfd_boolean seenflag = FALSE;
2799 #if defined (HAVE_SETLOCALE)
2800 #if defined (HAVE_LC_MESSAGES)
2801 setlocale (LC_MESSAGES, "");
2802 #endif
2803 setlocale (LC_CTYPE, "");
2804 #endif
2806 bindtextdomain (PACKAGE, LOCALEDIR);
2807 textdomain (PACKAGE);
2809 program_name = *argv;
2810 xmalloc_set_program_name (program_name);
2812 START_PROGRESS (program_name, 0);
2814 bfd_init ();
2815 set_default_bfd_target ();
2817 while ((c = getopt_long (argc, argv, "pib:m:M:VvCdDlfaHhrRtTxsSI:j:wE:zgeG",
2818 long_options, (int *) 0))
2819 != EOF)
2821 switch (c)
2823 case 0:
2824 break; /* We've been given a long option. */
2825 case 'm':
2826 machine = optarg;
2827 break;
2828 case 'M':
2829 if (disassembler_options)
2830 /* Ignore potential memory leak for now. */
2831 disassembler_options = concat (disassembler_options, ",",
2832 optarg, NULL);
2833 else
2834 disassembler_options = optarg;
2835 break;
2836 case 'j':
2837 if (only_used == only_size)
2839 only_size += 8;
2840 only = xrealloc (only, only_size * sizeof (char *));
2842 only [only_used++] = optarg;
2843 break;
2844 case 'l':
2845 with_line_numbers = TRUE;
2846 break;
2847 case 'b':
2848 target = optarg;
2849 break;
2850 case 'C':
2851 do_demangle = TRUE;
2852 if (optarg != NULL)
2854 enum demangling_styles style;
2856 style = cplus_demangle_name_to_style (optarg);
2857 if (style == unknown_demangling)
2858 fatal (_("unknown demangling style `%s'"),
2859 optarg);
2861 cplus_demangle_set_style (style);
2863 break;
2864 case 'w':
2865 wide_output = TRUE;
2866 break;
2867 case OPTION_ADJUST_VMA:
2868 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
2869 break;
2870 case OPTION_START_ADDRESS:
2871 start_address = parse_vma (optarg, "--start-address");
2872 break;
2873 case OPTION_STOP_ADDRESS:
2874 stop_address = parse_vma (optarg, "--stop-address");
2875 break;
2876 case 'E':
2877 if (strcmp (optarg, "B") == 0)
2878 endian = BFD_ENDIAN_BIG;
2879 else if (strcmp (optarg, "L") == 0)
2880 endian = BFD_ENDIAN_LITTLE;
2881 else
2883 non_fatal (_("unrecognized -E option"));
2884 usage (stderr, 1);
2886 break;
2887 case OPTION_ENDIAN:
2888 if (strncmp (optarg, "big", strlen (optarg)) == 0)
2889 endian = BFD_ENDIAN_BIG;
2890 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
2891 endian = BFD_ENDIAN_LITTLE;
2892 else
2894 non_fatal (_("unrecognized --endian type `%s'"), optarg);
2895 usage (stderr, 1);
2897 break;
2899 case 'f':
2900 dump_file_header = TRUE;
2901 seenflag = TRUE;
2902 break;
2903 case 'i':
2904 formats_info = TRUE;
2905 seenflag = TRUE;
2906 break;
2907 case 'I':
2908 add_include_path (optarg);
2909 break;
2910 case 'p':
2911 dump_private_headers = TRUE;
2912 seenflag = TRUE;
2913 break;
2914 case 'x':
2915 dump_private_headers = TRUE;
2916 dump_symtab = TRUE;
2917 dump_reloc_info = TRUE;
2918 dump_file_header = TRUE;
2919 dump_ar_hdrs = TRUE;
2920 dump_section_headers = TRUE;
2921 seenflag = TRUE;
2922 break;
2923 case 't':
2924 dump_symtab = TRUE;
2925 seenflag = TRUE;
2926 break;
2927 case 'T':
2928 dump_dynamic_symtab = TRUE;
2929 seenflag = TRUE;
2930 break;
2931 case 'd':
2932 disassemble = TRUE;
2933 seenflag = TRUE;
2934 break;
2935 case 'z':
2936 disassemble_zeroes = TRUE;
2937 break;
2938 case 'D':
2939 disassemble = TRUE;
2940 disassemble_all = TRUE;
2941 seenflag = TRUE;
2942 break;
2943 case 'S':
2944 disassemble = TRUE;
2945 with_source_code = TRUE;
2946 seenflag = TRUE;
2947 break;
2948 case 'g':
2949 dump_debugging = 1;
2950 seenflag = TRUE;
2951 break;
2952 case 'e':
2953 dump_debugging = 1;
2954 dump_debugging_tags = 1;
2955 do_demangle = TRUE;
2956 seenflag = TRUE;
2957 break;
2958 case 'G':
2959 dump_stab_section_info = TRUE;
2960 seenflag = TRUE;
2961 break;
2962 case 's':
2963 dump_section_contents = TRUE;
2964 seenflag = TRUE;
2965 break;
2966 case 'r':
2967 dump_reloc_info = TRUE;
2968 seenflag = TRUE;
2969 break;
2970 case 'R':
2971 dump_dynamic_reloc_info = TRUE;
2972 seenflag = TRUE;
2973 break;
2974 case 'a':
2975 dump_ar_hdrs = TRUE;
2976 seenflag = TRUE;
2977 break;
2978 case 'h':
2979 dump_section_headers = TRUE;
2980 seenflag = TRUE;
2981 break;
2982 case 'H':
2983 usage (stdout, 0);
2984 seenflag = TRUE;
2985 case 'v':
2986 case 'V':
2987 show_version = TRUE;
2988 seenflag = TRUE;
2989 break;
2991 default:
2992 usage (stderr, 1);
2996 if (show_version)
2997 print_version ("objdump");
2999 if (!seenflag)
3000 usage (stderr, 2);
3002 if (formats_info)
3003 exit_status = display_info ();
3004 else
3006 if (optind == argc)
3007 display_file ("a.out", target);
3008 else
3009 for (; optind < argc;)
3010 display_file (argv[optind++], target);
3013 END_PROGRESS (program_name);
3015 return exit_status;