1 /* objdump.c -- dump information about an object file.
2 Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
3 Free Software Foundation, Inc.
5 This file is part of GNU Binutils.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
27 #include "libiberty.h"
32 /* Internal headers for the ELF .stab-dump code - sorry. */
33 #define BYTES_IN_WORD 32
34 #include "aout/aout64.h"
36 #ifdef NEED_DECLARATION_FPRINTF
37 /* This is needed by INIT_DISASSEMBLE_INFO. */
38 extern int fprintf PARAMS ((FILE *, const char *, ...));
42 static int exit_status = 0;
44 static char *default_target = NULL; /* default at runtime */
46 static int show_version = 0; /* show the version number */
47 static int dump_section_contents; /* -s */
48 static int dump_section_headers; /* -h */
49 static boolean dump_file_header; /* -f */
50 static int dump_symtab; /* -t */
51 static int dump_dynamic_symtab; /* -T */
52 static int dump_reloc_info; /* -r */
53 static int dump_dynamic_reloc_info; /* -R */
54 static int dump_ar_hdrs; /* -a */
55 static int dump_private_headers; /* -p */
56 static int prefix_addresses; /* --prefix-addresses */
57 static int with_line_numbers; /* -l */
58 static boolean with_source_code; /* -S */
59 static int show_raw_insn; /* --show-raw-insn */
60 static int dump_stab_section_info; /* --stabs */
61 static int do_demangle; /* -C, --demangle */
62 static boolean disassemble; /* -d */
63 static boolean disassemble_all; /* -D */
64 static int disassemble_zeroes; /* --disassemble-zeroes */
65 static boolean formats_info; /* -i */
66 static char *only; /* -j secname */
67 static int wide_output; /* -w */
68 static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
69 static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
70 static int dump_debugging; /* --debugging */
71 static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
72 static int file_start_context = 0; /* --file-start-context */
74 /* Extra info to pass to the disassembler address printing function. */
75 struct objdump_disasm_info {
81 /* Architecture to disassemble for, or default if NULL. */
82 static char *machine = (char *) NULL;
84 /* Target specific options to the disassembler. */
85 static char *disassembler_options = (char *) NULL;
87 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
88 static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
90 /* The symbol table. */
91 static asymbol **syms;
93 /* Number of symbols in `syms'. */
94 static long symcount = 0;
96 /* The sorted symbol table. */
97 static asymbol **sorted_syms;
99 /* Number of symbols in `sorted_syms'. */
100 static long sorted_symcount = 0;
102 /* The dynamic symbol table. */
103 static asymbol **dynsyms;
105 /* Number of symbols in `dynsyms'. */
106 static long dynsymcount = 0;
108 /* Static declarations. */
111 usage PARAMS ((FILE *, int));
114 nonfatal PARAMS ((const char *));
117 display_file PARAMS ((char *filename, char *target));
120 dump_section_header PARAMS ((bfd *, asection *, PTR));
123 dump_headers PARAMS ((bfd *));
126 dump_data PARAMS ((bfd *abfd));
129 dump_relocs PARAMS ((bfd *abfd));
132 dump_dynamic_relocs PARAMS ((bfd * abfd));
135 dump_reloc_set PARAMS ((bfd *, asection *, arelent **, long));
138 dump_symbols PARAMS ((bfd *abfd, boolean dynamic));
141 dump_bfd_header PARAMS ((bfd *));
144 dump_bfd_private_header PARAMS ((bfd *));
147 display_bfd PARAMS ((bfd *abfd));
150 display_target_list PARAMS ((void));
153 display_info_table PARAMS ((int, int));
156 display_target_tables PARAMS ((void));
159 display_info PARAMS ((void));
162 objdump_print_value PARAMS ((bfd_vma, struct disassemble_info *, boolean));
165 objdump_print_symname PARAMS ((bfd *, struct disassemble_info *, asymbol *));
168 find_symbol_for_address PARAMS ((bfd *, asection *, bfd_vma, boolean, long *));
171 objdump_print_addr_with_sym PARAMS ((bfd *, asection *, asymbol *, bfd_vma,
172 struct disassemble_info *, boolean));
175 objdump_print_addr PARAMS ((bfd_vma, struct disassemble_info *, boolean));
178 objdump_print_address PARAMS ((bfd_vma, struct disassemble_info *));
181 show_line PARAMS ((bfd *, asection *, bfd_vma));
184 disassemble_bytes PARAMS ((struct disassemble_info *, disassembler_ftype,
185 boolean, bfd_byte *, bfd_vma, bfd_vma,
186 arelent ***, arelent **));
189 disassemble_data PARAMS ((bfd *));
192 endian_string PARAMS ((enum bfd_endian));
195 slurp_symtab PARAMS ((bfd *));
198 slurp_dynamic_symtab PARAMS ((bfd *));
201 remove_useless_symbols PARAMS ((asymbol **, long));
204 compare_symbols PARAMS ((const PTR, const PTR));
207 compare_relocs PARAMS ((const PTR, const PTR));
210 dump_stabs PARAMS ((bfd *));
213 read_section_stabs PARAMS ((bfd *, const char *, const char *));
216 print_section_stabs PARAMS ((bfd *, const char *, const char *));
219 usage (stream, status)
223 fprintf (stream, _("Usage: %s OPTION... FILE...\n"), program_name);
224 fprintf (stream, _("Display information from object FILE.\n"));
225 fprintf (stream, _("\n At least one of the following switches must be given:\n"));
226 fprintf (stream, _("\
227 -a, --archive-headers Display archive header information\n\
228 -f, --file-headers Display the contents of the overall file header\n\
229 -p, --private-headers Display object format specific file header contents\n\
230 -h, --[section-]headers Display the contents of the section headers\n\
231 -x, --all-headers Display the contents of all headers\n\
232 -d, --disassemble Display assembler contents of executable sections\n\
233 -D, --disassemble-all Display assembler contents of all sections\n\
234 -S, --source Intermix source code with disassembly\n\
235 -s, --full-contents Display the full contents of all sections requested\n\
236 -g, --debugging Display debug information in object file\n\
237 -G, --stabs Display (in raw form) any STABS info in the file\n\
238 -t, --syms Display the contents of the symbol table(s)\n\
239 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
240 -r, --reloc Display the relocation entries in the file\n\
241 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
242 -V, --version Display this program's version number\n\
243 -i, --info List object formats and architectures supported\n\
244 -H, --help Display this information\n\
248 fprintf (stream, _("\n The following switches are optional:\n"));
249 fprintf (stream, _("\
250 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
251 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
252 -j, --section=NAME Only display information for section NAME\n\
253 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
254 -EB --endian=big Assume big endian format when disassembling\n\
255 -EL --endian=little Assume little endian format when disassembling\n\
256 --file-start-context Include context from start of file (with -S)\n\
257 -l, --line-numbers Include line numbers and filenames in output\n\
258 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
259 The STYLE, if specified, can be `auto', 'gnu',\n\
260 'lucid', 'arm', 'hp', 'edg', or 'gnu-new-abi'\n\
261 -w, --wide Format output for more than 80 columns\n\
262 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
263 --start-address=ADDR Only process data whoes address is >= ADDR\n\
264 --stop-address=ADDR Only process data whoes address is <= ADDR\n\
265 --prefix-addresses Print complete address alongside disassembly\n\
266 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
267 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
269 list_supported_targets (program_name, stream);
271 disassembler_usage (stream);
274 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
278 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
280 #define OPTION_ENDIAN (150)
281 #define OPTION_START_ADDRESS (OPTION_ENDIAN + 1)
282 #define OPTION_STOP_ADDRESS (OPTION_START_ADDRESS + 1)
283 #define OPTION_ADJUST_VMA (OPTION_STOP_ADDRESS + 1)
285 static struct option long_options[]=
287 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
288 {"all-headers", no_argument, NULL, 'x'},
289 {"private-headers", no_argument, NULL, 'p'},
290 {"architecture", required_argument, NULL, 'm'},
291 {"archive-headers", no_argument, NULL, 'a'},
292 {"debugging", no_argument, NULL, 'g'},
293 {"demangle", optional_argument, NULL, 'C'},
294 {"disassemble", no_argument, NULL, 'd'},
295 {"disassemble-all", no_argument, NULL, 'D'},
296 {"disassembler-options", required_argument, NULL, 'M'},
297 {"disassemble-zeroes", no_argument, NULL, 'z'},
298 {"dynamic-reloc", no_argument, NULL, 'R'},
299 {"dynamic-syms", no_argument, NULL, 'T'},
300 {"endian", required_argument, NULL, OPTION_ENDIAN},
301 {"file-headers", no_argument, NULL, 'f'},
302 {"file-start-context", no_argument, &file_start_context, 1},
303 {"full-contents", no_argument, NULL, 's'},
304 {"headers", no_argument, NULL, 'h'},
305 {"help", no_argument, NULL, 'H'},
306 {"info", no_argument, NULL, 'i'},
307 {"line-numbers", no_argument, NULL, 'l'},
308 {"no-show-raw-insn", no_argument, &show_raw_insn, -1},
309 {"prefix-addresses", no_argument, &prefix_addresses, 1},
310 {"reloc", no_argument, NULL, 'r'},
311 {"section", required_argument, NULL, 'j'},
312 {"section-headers", no_argument, NULL, 'h'},
313 {"show-raw-insn", no_argument, &show_raw_insn, 1},
314 {"source", no_argument, NULL, 'S'},
315 {"stabs", no_argument, NULL, 'G'},
316 {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
317 {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
318 {"syms", no_argument, NULL, 't'},
319 {"target", required_argument, NULL, 'b'},
320 {"version", no_argument, NULL, 'V'},
321 {"wide", no_argument, NULL, 'w'},
322 {0, no_argument, 0, 0}
334 dump_section_header (abfd, section, ignored)
335 bfd *abfd ATTRIBUTE_UNUSED;
337 PTR ignored ATTRIBUTE_UNUSED;
340 unsigned int opb = bfd_octets_per_byte (abfd);
342 printf ("%3d %-13s %08lx ", section->index,
343 bfd_get_section_name (abfd, section),
344 (unsigned long) bfd_section_size (abfd, section) / opb);
345 printf_vma (bfd_get_section_vma (abfd, section));
347 printf_vma (section->lma);
348 printf (" %08lx 2**%u", section->filepos,
349 bfd_get_section_alignment (abfd, section));
355 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
357 PF (SEC_HAS_CONTENTS, "CONTENTS");
358 PF (SEC_ALLOC, "ALLOC");
359 PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
360 PF (SEC_CONSTRUCTOR_TEXT, "CONSTRUCTOR TEXT");
361 PF (SEC_CONSTRUCTOR_DATA, "CONSTRUCTOR DATA");
362 PF (SEC_CONSTRUCTOR_BSS, "CONSTRUCTOR BSS");
363 PF (SEC_LOAD, "LOAD");
364 PF (SEC_RELOC, "RELOC");
366 PF (SEC_BALIGN, "BALIGN");
368 PF (SEC_READONLY, "READONLY");
369 PF (SEC_CODE, "CODE");
370 PF (SEC_DATA, "DATA");
372 PF (SEC_DEBUGGING, "DEBUGGING");
373 PF (SEC_NEVER_LOAD, "NEVER_LOAD");
374 PF (SEC_EXCLUDE, "EXCLUDE");
375 PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
376 PF (SEC_BLOCK, "BLOCK");
377 PF (SEC_CLINK, "CLINK");
378 PF (SEC_SMALL_DATA, "SMALL_DATA");
379 PF (SEC_SHARED, "SHARED");
381 if ((section->flags & SEC_LINK_ONCE) != 0)
385 switch (section->flags & SEC_LINK_DUPLICATES)
389 case SEC_LINK_DUPLICATES_DISCARD:
390 ls = "LINK_ONCE_DISCARD";
392 case SEC_LINK_DUPLICATES_ONE_ONLY:
393 ls = "LINK_ONCE_ONE_ONLY";
395 case SEC_LINK_DUPLICATES_SAME_SIZE:
396 ls = "LINK_ONCE_SAME_SIZE";
398 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
399 ls = "LINK_ONCE_SAME_CONTENTS";
402 printf ("%s%s", comma, ls);
404 if (section->comdat != NULL)
405 printf (" (COMDAT %s %ld)", section->comdat->name,
406 section->comdat->symbol);
419 printf (_("Sections:\n"));
422 printf (_("Idx Name Size VMA LMA File off Algn"));
424 printf (_("Idx Name Size VMA LMA File off Algn"));
428 printf (_(" Flags"));
431 bfd_map_over_sections (abfd, dump_section_header, (PTR) NULL);
438 asymbol **sy = (asymbol **) NULL;
441 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
443 non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
448 storage = bfd_get_symtab_upper_bound (abfd);
450 bfd_fatal (bfd_get_filename (abfd));
454 sy = (asymbol **) xmalloc (storage);
456 symcount = bfd_canonicalize_symtab (abfd, sy);
458 bfd_fatal (bfd_get_filename (abfd));
460 non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
464 /* Read in the dynamic symbols. */
467 slurp_dynamic_symtab (abfd)
470 asymbol **sy = (asymbol **) NULL;
473 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
476 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
478 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
483 bfd_fatal (bfd_get_filename (abfd));
488 sy = (asymbol **) xmalloc (storage);
490 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
492 bfd_fatal (bfd_get_filename (abfd));
493 if (dynsymcount == 0)
494 non_fatal (_("%s: No dynamic symbols"), bfd_get_filename (abfd));
498 /* Filter out (in place) symbols that are useless for disassembly.
499 COUNT is the number of elements in SYMBOLS.
500 Return the number of useful symbols. */
503 remove_useless_symbols (symbols, count)
507 register asymbol **in_ptr = symbols, **out_ptr = symbols;
511 asymbol *sym = *in_ptr++;
513 if (sym->name == NULL || sym->name[0] == '\0')
515 if (sym->flags & (BSF_DEBUGGING))
517 if (bfd_is_und_section (sym->section)
518 || bfd_is_com_section (sym->section))
523 return out_ptr - symbols;
526 /* Sort symbols into value order. */
529 compare_symbols (ap, bp)
533 const asymbol *a = *(const asymbol **)ap;
534 const asymbol *b = *(const asymbol **)bp;
538 flagword aflags, bflags;
540 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
542 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
545 if (a->section > b->section)
547 else if (a->section < b->section)
550 an = bfd_asymbol_name (a);
551 bn = bfd_asymbol_name (b);
555 /* The symbols gnu_compiled and gcc2_compiled convey no real
556 information, so put them after other symbols with the same value. */
558 af = (strstr (an, "gnu_compiled") != NULL
559 || strstr (an, "gcc2_compiled") != NULL);
560 bf = (strstr (bn, "gnu_compiled") != NULL
561 || strstr (bn, "gcc2_compiled") != NULL);
568 /* We use a heuristic for the file name, to try to sort it after
569 more useful symbols. It may not work on non Unix systems, but it
570 doesn't really matter; the only difference is precisely which
571 symbol names get printed. */
573 #define file_symbol(s, sn, snl) \
574 (((s)->flags & BSF_FILE) != 0 \
575 || ((sn)[(snl) - 2] == '.' \
576 && ((sn)[(snl) - 1] == 'o' \
577 || (sn)[(snl) - 1] == 'a')))
579 af = file_symbol (a, an, anl);
580 bf = file_symbol (b, bn, bnl);
587 /* Try to sort global symbols before local symbols before function
588 symbols before debugging symbols. */
593 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
595 if ((aflags & BSF_DEBUGGING) != 0)
600 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
602 if ((aflags & BSF_FUNCTION) != 0)
607 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
609 if ((aflags & BSF_LOCAL) != 0)
614 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
616 if ((aflags & BSF_GLOBAL) != 0)
622 /* Symbols that start with '.' might be section names, so sort them
623 after symbols that don't start with '.'. */
624 if (an[0] == '.' && bn[0] != '.')
626 if (an[0] != '.' && bn[0] == '.')
629 /* Finally, if we can't distinguish them in any other way, try to
630 get consistent results by sorting the symbols by name. */
631 return strcmp (an, bn);
634 /* Sort relocs into address order. */
637 compare_relocs (ap, bp)
641 const arelent *a = *(const arelent **)ap;
642 const arelent *b = *(const arelent **)bp;
644 if (a->address > b->address)
646 else if (a->address < b->address)
649 /* So that associated relocations tied to the same address show up
650 in the correct order, we don't do any further sorting. */
659 /* Print VMA to STREAM. If SKIP_ZEROES is true, omit leading zeroes. */
662 objdump_print_value (vma, info, skip_zeroes)
664 struct disassemble_info *info;
670 sprintf_vma (buf, vma);
675 for (p = buf; *p == '0'; ++p)
680 (*info->fprintf_func) (info->stream, "%s", p);
683 /* Print the name of a symbol. */
686 objdump_print_symname (abfd, info, sym)
688 struct disassemble_info *info;
696 name = bfd_asymbol_name (sym);
697 if (! do_demangle || name[0] == '\0')
701 /* Demangle the name. */
702 if (bfd_get_symbol_leading_char (abfd) == name[0])
705 alloc = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS);
713 (*info->fprintf_func) (info->stream, "%s", print);
715 printf ("%s", print);
721 /* Locate a symbol given a bfd, a section, and a VMA. If REQUIRE_SEC
722 is true, then always require the symbol to be in the section. This
723 returns NULL if there is no suitable symbol. If PLACE is not NULL,
724 then *PLACE is set to the index of the symbol in sorted_syms. */
727 find_symbol_for_address (abfd, sec, vma, require_sec, place)
734 /* @@ Would it speed things up to cache the last two symbols returned,
735 and maybe their address ranges? For many processors, only one memory
736 operand can be present at a time, so the 2-entry cache wouldn't be
737 constantly churned by code doing heavy memory accesses. */
739 /* Indices in `sorted_syms'. */
741 long max = sorted_symcount;
743 unsigned int opb = bfd_octets_per_byte (abfd);
745 if (sorted_symcount < 1)
748 /* Perform a binary search looking for the closest symbol to the
749 required value. We are searching the range (min, max]. */
750 while (min + 1 < max)
754 thisplace = (max + min) / 2;
755 sym = sorted_syms[thisplace];
757 if (bfd_asymbol_value (sym) > vma)
759 else if (bfd_asymbol_value (sym) < vma)
768 /* The symbol we want is now in min, the low end of the range we
769 were searching. If there are several symbols with the same
770 value, we want the first one. */
773 && (bfd_asymbol_value (sorted_syms[thisplace])
774 == bfd_asymbol_value (sorted_syms[thisplace - 1])))
777 /* If the file is relocateable, and the symbol could be from this
778 section, prefer a symbol from this section over symbols from
779 others, even if the other symbol's value might be closer.
781 Note that this may be wrong for some symbol references if the
782 sections have overlapping memory ranges, but in that case there's
783 no way to tell what's desired without looking at the relocation
786 if (sorted_syms[thisplace]->section != sec
788 || ((abfd->flags & HAS_RELOC) != 0
789 && vma >= bfd_get_section_vma (abfd, sec)
790 && vma < (bfd_get_section_vma (abfd, sec)
791 + bfd_section_size (abfd, sec) / opb))))
795 for (i = thisplace + 1; i < sorted_symcount; i++)
797 if (bfd_asymbol_value (sorted_syms[i])
798 != bfd_asymbol_value (sorted_syms[thisplace]))
804 if (sorted_syms[i]->section == sec
806 || sorted_syms[i - 1]->section != sec
807 || (bfd_asymbol_value (sorted_syms[i])
808 != bfd_asymbol_value (sorted_syms[i - 1]))))
815 if (sorted_syms[thisplace]->section != sec)
817 /* We didn't find a good symbol with a smaller value.
818 Look for one with a larger value. */
819 for (i = thisplace + 1; i < sorted_symcount; i++)
821 if (sorted_syms[i]->section == sec)
829 if (sorted_syms[thisplace]->section != sec
831 || ((abfd->flags & HAS_RELOC) != 0
832 && vma >= bfd_get_section_vma (abfd, sec)
833 && vma < (bfd_get_section_vma (abfd, sec)
834 + bfd_section_size (abfd, sec)))))
836 /* There is no suitable symbol. */
844 return sorted_syms[thisplace];
847 /* Print an address to INFO symbolically. */
850 objdump_print_addr_with_sym (abfd, sec, sym, vma, info, skip_zeroes)
855 struct disassemble_info *info;
858 objdump_print_value (vma, info, skip_zeroes);
864 (*info->fprintf_func) (info->stream, " <%s",
865 bfd_get_section_name (abfd, sec));
866 secaddr = bfd_get_section_vma (abfd, sec);
869 (*info->fprintf_func) (info->stream, "-0x");
870 objdump_print_value (secaddr - vma, info, true);
872 else if (vma > secaddr)
874 (*info->fprintf_func) (info->stream, "+0x");
875 objdump_print_value (vma - secaddr, info, true);
877 (*info->fprintf_func) (info->stream, ">");
881 (*info->fprintf_func) (info->stream, " <");
882 objdump_print_symname (abfd, info, sym);
883 if (bfd_asymbol_value (sym) > vma)
885 (*info->fprintf_func) (info->stream, "-0x");
886 objdump_print_value (bfd_asymbol_value (sym) - vma, info, true);
888 else if (vma > bfd_asymbol_value (sym))
890 (*info->fprintf_func) (info->stream, "+0x");
891 objdump_print_value (vma - bfd_asymbol_value (sym), info, true);
893 (*info->fprintf_func) (info->stream, ">");
897 /* Print VMA to INFO, symbolically if possible. If SKIP_ZEROES is
898 true, don't output leading zeroes. */
901 objdump_print_addr (vma, info, skip_zeroes)
903 struct disassemble_info *info;
906 struct objdump_disasm_info *aux;
909 if (sorted_symcount < 1)
911 (*info->fprintf_func) (info->stream, "0x");
912 objdump_print_value (vma, info, skip_zeroes);
916 aux = (struct objdump_disasm_info *) info->application_data;
917 sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
919 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
923 /* Print VMA to INFO. This function is passed to the disassembler
927 objdump_print_address (vma, info)
929 struct disassemble_info *info;
931 objdump_print_addr (vma, info, ! prefix_addresses);
934 /* Determine of the given address has a symbol associated with it. */
937 objdump_symbol_at_address (vma, info)
939 struct disassemble_info * info;
941 struct objdump_disasm_info * aux;
944 /* No symbols - do not bother checking. */
945 if (sorted_symcount < 1)
948 aux = (struct objdump_disasm_info *) info->application_data;
949 sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
952 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
955 /* Hold the last function name and the last line number we displayed
958 static char *prev_functionname;
959 static unsigned int prev_line;
961 /* We keep a list of all files that we have seen when doing a
962 dissassembly with source, so that we know how much of the file to
963 display. This can be important for inlined functions. */
965 struct print_file_list
967 struct print_file_list *next;
973 static struct print_file_list *print_files;
975 /* The number of preceding context lines to show when we start
976 displaying a file for the first time. */
978 #define SHOW_PRECEDING_CONTEXT_LINES (5)
980 /* Skip ahead to a given line in a file, optionally printing each
984 skip_to_line PARAMS ((struct print_file_list *, unsigned int, boolean));
987 skip_to_line (p, line, show)
988 struct print_file_list *p;
992 while (p->line < line)
996 if (fgets (buf, sizeof buf, p->f) == NULL)
1006 if (strchr (buf, '\n') != NULL)
1011 /* Show the line number, or the source line, in a dissassembly
1015 show_line (abfd, section, addr_offset)
1018 bfd_vma addr_offset;
1020 CONST char *filename;
1021 CONST char *functionname;
1024 if (! with_line_numbers && ! with_source_code)
1027 if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
1028 &functionname, &line))
1031 if (filename != NULL && *filename == '\0')
1033 if (functionname != NULL && *functionname == '\0')
1034 functionname = NULL;
1036 if (with_line_numbers)
1038 if (functionname != NULL
1039 && (prev_functionname == NULL
1040 || strcmp (functionname, prev_functionname) != 0))
1041 printf ("%s():\n", functionname);
1042 if (line > 0 && line != prev_line)
1043 printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
1046 if (with_source_code
1050 struct print_file_list **pp, *p;
1052 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1053 if (strcmp ((*pp)->filename, filename) == 0)
1059 if (p != print_files)
1063 /* We have reencountered a file name which we saw
1064 earlier. This implies that either we are dumping out
1065 code from an included file, or the same file was
1066 linked in more than once. There are two common cases
1067 of an included file: inline functions in a header
1068 file, and a bison or flex skeleton file. In the
1069 former case we want to just start printing (but we
1070 back up a few lines to give context); in the latter
1071 case we want to continue from where we left off. I
1072 can't think of a good way to distinguish the cases,
1073 so I used a heuristic based on the file name. */
1074 if (strcmp (p->filename + strlen (p->filename) - 2, ".h") != 0)
1078 l = line - SHOW_PRECEDING_CONTEXT_LINES;
1085 p->f = fopen (p->filename, "r");
1089 skip_to_line (p, l, false);
1091 if (print_files->f != NULL)
1093 fclose (print_files->f);
1094 print_files->f = NULL;
1100 skip_to_line (p, line, true);
1102 p->next = print_files;
1110 f = fopen (filename, "r");
1115 p = ((struct print_file_list *)
1116 xmalloc (sizeof (struct print_file_list)));
1117 p->filename = xmalloc (strlen (filename) + 1);
1118 strcpy (p->filename, filename);
1122 if (print_files != NULL && print_files->f != NULL)
1124 fclose (print_files->f);
1125 print_files->f = NULL;
1127 p->next = print_files;
1130 if (file_start_context)
1133 l = line - SHOW_PRECEDING_CONTEXT_LINES;
1136 skip_to_line (p, l, false);
1138 skip_to_line (p, line, true);
1143 if (functionname != NULL
1144 && (prev_functionname == NULL
1145 || strcmp (functionname, prev_functionname) != 0))
1147 if (prev_functionname != NULL)
1148 free (prev_functionname);
1149 prev_functionname = xmalloc (strlen (functionname) + 1);
1150 strcpy (prev_functionname, functionname);
1153 if (line > 0 && line != prev_line)
1157 /* Pseudo FILE object for strings. */
1165 /* sprintf to a "stream" */
1168 #ifdef ANSI_PROTOTYPES
1169 objdump_sprintf (SFILE *f, const char *format, ...)
1171 objdump_sprintf (va_alist)
1175 #ifndef ANSI_PROTOTYPES
1183 #ifdef ANSI_PROTOTYPES
1184 va_start (args, format);
1187 f = va_arg (args, SFILE *);
1188 format = va_arg (args, const char *);
1191 vasprintf (&buf, format, args);
1197 fatal (_("Out of virtual memory"));
1202 while ((size_t) ((f->buffer + f->size) - f->current) < n + 1)
1206 curroff = f->current - f->buffer;
1208 f->buffer = xrealloc (f->buffer, f->size);
1209 f->current = f->buffer + curroff;
1212 memcpy (f->current, buf, n);
1214 f->current[0] = '\0';
1221 /* The number of zeroes we want to see before we start skipping them.
1222 The number is arbitrarily chosen. */
1224 #define SKIP_ZEROES (8)
1226 /* The number of zeroes to skip at the end of a section. If the
1227 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1228 SKIP_ZEROES, they will be disassembled. If there are fewer than
1229 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1230 attempt to avoid disassembling zeroes inserted by section
1233 #define SKIP_ZEROES_AT_END (3)
1235 /* Disassemble some data in memory between given values. */
1238 disassemble_bytes (info, disassemble_fn, insns, data,
1239 start_offset, stop_offset, relppp,
1241 struct disassemble_info *info;
1242 disassembler_ftype disassemble_fn;
1245 bfd_vma start_offset;
1246 bfd_vma stop_offset;
1250 struct objdump_disasm_info *aux;
1252 int octets_per_line;
1254 int skip_addr_chars;
1255 bfd_vma addr_offset;
1256 int opb = info->octets_per_byte;
1258 aux = (struct objdump_disasm_info *) info->application_data;
1262 octets_per_line = 4;
1264 octets_per_line = 16;
1266 /* Figure out how many characters to skip at the start of an
1267 address, to make the disassembly look nicer. We discard leading
1268 zeroes in chunks of 4, ensuring that there is always a leading
1270 skip_addr_chars = 0;
1271 if (! prefix_addresses)
1276 sprintf_vma (buf, section->vma +
1277 bfd_section_size (section->owner, section) / opb);
1279 while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0'
1282 skip_addr_chars += 4;
1287 info->insn_info_valid = 0;
1290 addr_offset = start_offset;
1291 while (addr_offset < stop_offset)
1295 boolean need_nl = false;
1297 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1299 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1302 if (! disassemble_zeroes
1303 && (info->insn_info_valid == 0
1304 || info->branch_delay_insns == 0)
1305 && (z - addr_offset * opb >= SKIP_ZEROES
1306 || (z == stop_offset * opb &&
1307 z - addr_offset * opb < SKIP_ZEROES_AT_END)))
1311 /* If there are more nonzero octets to follow, we only skip
1312 zeroes in multiples of 4, to try to avoid running over
1313 the start of an instruction which happens to start with
1315 if (z != stop_offset * opb)
1316 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1318 octets = z - addr_offset * opb;
1329 if (with_line_numbers || with_source_code)
1330 show_line (aux->abfd, section, addr_offset);
1332 if (! prefix_addresses)
1336 sprintf_vma (buf, section->vma + addr_offset);
1337 for (s = buf + skip_addr_chars; *s == '0'; s++)
1341 printf ("%s:\t", buf + skip_addr_chars);
1345 aux->require_sec = true;
1346 objdump_print_address (section->vma + addr_offset, info);
1347 aux->require_sec = false;
1354 sfile.buffer = xmalloc (sfile.size);
1355 sfile.current = sfile.buffer;
1356 info->fprintf_func = (fprintf_ftype) objdump_sprintf;
1357 info->stream = (FILE *) &sfile;
1358 info->bytes_per_line = 0;
1359 info->bytes_per_chunk = 0;
1361 /* FIXME: This is wrong. It tests the number of octets
1362 in the last instruction, not the current one. */
1363 if (*relppp < relppend
1364 && (**relppp)->address >= addr_offset
1365 && (**relppp)->address < addr_offset + octets / opb)
1366 info->flags = INSN_HAS_RELOC;
1370 octets = (*disassemble_fn) (section->vma + addr_offset, info);
1371 info->fprintf_func = (fprintf_ftype) fprintf;
1372 info->stream = stdout;
1373 if (info->bytes_per_line != 0)
1374 octets_per_line = info->bytes_per_line;
1377 if (sfile.current != sfile.buffer)
1378 printf ("%s\n", sfile.buffer);
1379 free (sfile.buffer);
1387 octets = octets_per_line;
1388 if (addr_offset + octets / opb > stop_offset)
1389 octets = (stop_offset - addr_offset) * opb;
1391 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1393 if (isprint (data[j]))
1394 buf[j - addr_offset * opb] = data[j];
1396 buf[j - addr_offset * opb] = '.';
1398 buf[j - addr_offset * opb] = '\0';
1401 if (prefix_addresses
1403 : show_raw_insn >= 0)
1407 /* If ! prefix_addresses and ! wide_output, we print
1408 octets_per_line octets per line. */
1410 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1411 pb = octets_per_line;
1413 if (info->bytes_per_chunk)
1414 bpc = info->bytes_per_chunk;
1418 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1421 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1423 for (k = bpc - 1; k >= 0; k--)
1424 printf ("%02x", (unsigned) data[j + k]);
1429 for (k = 0; k < bpc; k++)
1430 printf ("%02x", (unsigned) data[j + k]);
1435 for (; pb < octets_per_line; pb += bpc)
1439 for (k = 0; k < bpc; k++)
1444 /* Separate raw data from instruction by extra space. */
1455 printf ("%s", sfile.buffer);
1456 free (sfile.buffer);
1459 if (prefix_addresses
1461 : show_raw_insn >= 0)
1469 j = addr_offset * opb + pb;
1471 sprintf_vma (buf, section->vma + j / opb);
1472 for (s = buf + skip_addr_chars; *s == '0'; s++)
1476 printf ("%s:\t", buf + skip_addr_chars);
1478 pb += octets_per_line;
1481 for (; j < addr_offset * opb + pb; j += bpc)
1485 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1487 for (k = bpc - 1; k >= 0; k--)
1488 printf ("%02x", (unsigned) data[j + k]);
1493 for (k = 0; k < bpc; k++)
1494 printf ("%02x", (unsigned) data[j + k]);
1508 && (section->flags & SEC_RELOC) != 0)
1510 while ((*relppp) < relppend
1511 && ((**relppp)->address >= (bfd_vma) addr_offset
1512 && (**relppp)->address < (bfd_vma) addr_offset + octets / opb))
1523 objdump_print_value (section->vma + q->address, info, true);
1525 printf (": %s\t", q->howto->name);
1527 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1528 printf ("*unknown*");
1531 const char *sym_name;
1533 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1534 if (sym_name != NULL && *sym_name != '\0')
1535 objdump_print_symname (aux->abfd, info, *q->sym_ptr_ptr);
1540 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1541 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1542 if (sym_name == NULL || *sym_name == '\0')
1543 sym_name = "*unknown*";
1544 printf ("%s", sym_name);
1551 objdump_print_value (q->addend, info, true);
1563 addr_offset += octets / opb;
1567 /* Disassemble the contents of an object file. */
1570 disassemble_data (abfd)
1573 unsigned long addr_offset;
1574 disassembler_ftype disassemble_fn;
1575 struct disassemble_info disasm_info;
1576 struct objdump_disasm_info aux;
1581 prev_functionname = NULL;
1584 /* We make a copy of syms to sort. We don't want to sort syms
1585 because that will screw up the relocs. */
1586 sorted_syms = (asymbol **) xmalloc (symcount * sizeof (asymbol *));
1587 memcpy (sorted_syms, syms, symcount * sizeof (asymbol *));
1589 sorted_symcount = remove_useless_symbols (sorted_syms, symcount);
1591 /* Sort the symbols into section and symbol order */
1592 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
1594 INIT_DISASSEMBLE_INFO(disasm_info, stdout, fprintf);
1595 disasm_info.application_data = (PTR) &aux;
1597 aux.require_sec = false;
1598 disasm_info.print_address_func = objdump_print_address;
1599 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
1601 if (machine != (char *) NULL)
1603 const bfd_arch_info_type *info = bfd_scan_arch (machine);
1606 fatal (_("Can't use supplied machine %s"), machine);
1608 abfd->arch_info = info;
1611 if (endian != BFD_ENDIAN_UNKNOWN)
1613 struct bfd_target *xvec;
1615 xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
1616 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
1617 xvec->byteorder = endian;
1621 disassemble_fn = disassembler (abfd);
1622 if (!disassemble_fn)
1624 non_fatal (_("Can't disassemble for architecture %s\n"),
1625 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
1630 opb = bfd_octets_per_byte (abfd);
1632 disasm_info.flavour = bfd_get_flavour (abfd);
1633 disasm_info.arch = bfd_get_arch (abfd);
1634 disasm_info.mach = bfd_get_mach (abfd);
1635 disasm_info.disassembler_options = disassembler_options;
1636 disasm_info.octets_per_byte = opb;
1638 if (bfd_big_endian (abfd))
1639 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
1640 else if (bfd_little_endian (abfd))
1641 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
1643 /* ??? Aborting here seems too drastic. We could default to big or little
1645 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
1647 for (section = abfd->sections;
1648 section != (asection *) NULL;
1649 section = section->next)
1651 bfd_byte *data = NULL;
1652 bfd_size_type datasize = 0;
1653 arelent **relbuf = NULL;
1654 arelent **relpp = NULL;
1655 arelent **relppend = NULL;
1656 unsigned long stop_offset;
1657 asymbol *sym = NULL;
1660 if ((section->flags & SEC_LOAD) == 0
1661 || (! disassemble_all
1663 && (section->flags & SEC_CODE) == 0))
1665 if (only != (char *) NULL && strcmp (only, section->name) != 0)
1669 && (section->flags & SEC_RELOC) != 0)
1673 relsize = bfd_get_reloc_upper_bound (abfd, section);
1675 bfd_fatal (bfd_get_filename (abfd));
1681 relbuf = (arelent **) xmalloc (relsize);
1682 relcount = bfd_canonicalize_reloc (abfd, section, relbuf, syms);
1684 bfd_fatal (bfd_get_filename (abfd));
1686 /* Sort the relocs by address. */
1687 qsort (relbuf, relcount, sizeof (arelent *), compare_relocs);
1690 relppend = relpp + relcount;
1692 /* Skip over the relocs belonging to addresses below the
1694 if (start_address != (bfd_vma) -1)
1696 while (relpp < relppend
1697 && (*relpp)->address < start_address)
1703 printf (_("Disassembly of section %s:\n"), section->name);
1705 datasize = bfd_get_section_size_before_reloc (section);
1709 data = (bfd_byte *) xmalloc ((size_t) datasize);
1711 bfd_get_section_contents (abfd, section, data, 0, datasize);
1714 disasm_info.buffer = data;
1715 disasm_info.buffer_vma = section->vma;
1716 disasm_info.buffer_length = datasize;
1717 if (start_address == (bfd_vma) -1
1718 || start_address < disasm_info.buffer_vma)
1721 addr_offset = start_address - disasm_info.buffer_vma;
1722 if (stop_address == (bfd_vma) -1)
1723 stop_offset = datasize / opb;
1726 if (stop_address < disasm_info.buffer_vma)
1729 stop_offset = stop_address - disasm_info.buffer_vma;
1730 if (stop_offset > disasm_info.buffer_length / opb)
1731 stop_offset = disasm_info.buffer_length / opb;
1734 sym = find_symbol_for_address (abfd, section, section->vma + addr_offset,
1737 while (addr_offset < stop_offset)
1740 unsigned long nextstop_offset;
1743 if (sym != NULL && bfd_asymbol_value (sym) <= section->vma + addr_offset)
1748 (x < sorted_symcount
1749 && bfd_asymbol_value (sorted_syms[x]) <= section->vma + addr_offset);
1752 disasm_info.symbols = & sorted_syms[place];
1753 disasm_info.num_symbols = x - place;
1756 disasm_info.symbols = NULL;
1758 if (! prefix_addresses)
1761 objdump_print_addr_with_sym (abfd, section, sym,
1762 section->vma + addr_offset,
1768 if (sym != NULL && bfd_asymbol_value (sym) > section->vma + addr_offset)
1770 else if (sym == NULL)
1774 /* Search forward for the next appropriate symbol in
1775 SECTION. Note that all the symbols are sorted
1776 together into one big array, and that some sections
1777 may have overlapping addresses. */
1778 while (place < sorted_symcount
1779 && (sorted_syms[place]->section != section
1780 || (bfd_asymbol_value (sorted_syms[place])
1781 <= bfd_asymbol_value (sym))))
1783 if (place >= sorted_symcount)
1786 nextsym = sorted_syms[place];
1789 if (sym != NULL && bfd_asymbol_value (sym) > section->vma + addr_offset)
1791 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
1792 if (nextstop_offset > stop_offset)
1793 nextstop_offset = stop_offset;
1795 else if (nextsym == NULL)
1796 nextstop_offset = stop_offset;
1799 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
1800 if (nextstop_offset > stop_offset)
1801 nextstop_offset = stop_offset;
1804 /* If a symbol is explicitly marked as being an object
1805 rather than a function, just dump the bytes without
1806 disassembling them. */
1809 || bfd_asymbol_value (sym) > section->vma + addr_offset
1810 || ((sym->flags & BSF_OBJECT) == 0
1811 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
1813 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
1815 || (sym->flags & BSF_FUNCTION) != 0)
1820 disassemble_bytes (&disasm_info, disassemble_fn, insns, data,
1821 addr_offset, nextstop_offset, &relpp, relppend);
1823 addr_offset = nextstop_offset;
1835 /* Define a table of stab values and print-strings. We wish the initializer
1836 could be a direct-mapped table, but instead we build one the first
1839 static void dump_section_stabs PARAMS ((bfd *abfd, char *stabsect_name,
1840 char *strsect_name));
1842 /* Dump the stabs sections from an object file that has a section that
1843 uses Sun stabs encoding. */
1849 dump_section_stabs (abfd, ".stab", ".stabstr");
1850 dump_section_stabs (abfd, ".stab.excl", ".stab.exclstr");
1851 dump_section_stabs (abfd, ".stab.index", ".stab.indexstr");
1852 dump_section_stabs (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
1855 static bfd_byte *stabs;
1856 static bfd_size_type stab_size;
1858 static char *strtab;
1859 static bfd_size_type stabstr_size;
1861 /* Read ABFD's stabs section STABSECT_NAME into `stabs'
1862 and string table section STRSECT_NAME into `strtab'.
1863 If the section exists and was read, allocate the space and return true.
1864 Otherwise return false. */
1867 read_section_stabs (abfd, stabsect_name, strsect_name)
1869 const char *stabsect_name;
1870 const char *strsect_name;
1872 asection *stabsect, *stabstrsect;
1874 stabsect = bfd_get_section_by_name (abfd, stabsect_name);
1877 printf (_("No %s section present\n\n"), stabsect_name);
1881 stabstrsect = bfd_get_section_by_name (abfd, strsect_name);
1882 if (0 == stabstrsect)
1884 non_fatal (_("%s has no %s section"),
1885 bfd_get_filename (abfd), strsect_name);
1890 stab_size = bfd_section_size (abfd, stabsect);
1891 stabstr_size = bfd_section_size (abfd, stabstrsect);
1893 stabs = (bfd_byte *) xmalloc (stab_size);
1894 strtab = (char *) xmalloc (stabstr_size);
1896 if (! bfd_get_section_contents (abfd, stabsect, (PTR) stabs, 0, stab_size))
1898 non_fatal (_("Reading %s section of %s failed: %s"),
1899 stabsect_name, bfd_get_filename (abfd),
1900 bfd_errmsg (bfd_get_error ()));
1907 if (! bfd_get_section_contents (abfd, stabstrsect, (PTR) strtab, 0,
1910 non_fatal (_("Reading %s section of %s failed: %s\n"),
1911 strsect_name, bfd_get_filename (abfd),
1912 bfd_errmsg (bfd_get_error ()));
1922 /* Stabs entries use a 12 byte format:
1923 4 byte string table index
1925 1 byte stab other field
1926 2 byte stab desc field
1928 FIXME: This will have to change for a 64 bit object format. */
1930 #define STRDXOFF (0)
1932 #define OTHEROFF (5)
1935 #define STABSIZE (12)
1937 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
1938 using string table section STRSECT_NAME (in `strtab'). */
1941 print_section_stabs (abfd, stabsect_name, strsect_name)
1943 const char *stabsect_name;
1944 const char *strsect_name ATTRIBUTE_UNUSED;
1947 unsigned file_string_table_offset = 0, next_file_string_table_offset = 0;
1948 bfd_byte *stabp, *stabs_end;
1951 stabs_end = stabp + stab_size;
1953 printf (_("Contents of %s section:\n\n"), stabsect_name);
1954 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
1956 /* Loop through all symbols and print them.
1958 We start the index at -1 because there is a dummy symbol on
1959 the front of stabs-in-{coff,elf} sections that supplies sizes. */
1961 for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
1965 unsigned char type, other;
1966 unsigned short desc;
1969 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
1970 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
1971 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
1972 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
1973 value = bfd_h_get_32 (abfd, stabp + VALOFF);
1975 printf ("\n%-6d ", i);
1976 /* Either print the stab name, or, if unnamed, print its number
1977 again (makes consistent formatting for tools like awk). */
1978 name = bfd_get_stab_name (type);
1980 printf ("%-6s", name);
1981 else if (type == N_UNDF)
1984 printf ("%-6d", type);
1985 printf (" %-6d %-6d ", other, desc);
1987 printf (" %-6lu", strx);
1989 /* Symbols with type == 0 (N_UNDF) specify the length of the
1990 string table associated with this file. We use that info
1991 to know how to relocate the *next* file's string table indices. */
1995 file_string_table_offset = next_file_string_table_offset;
1996 next_file_string_table_offset += value;
2000 /* Using the (possibly updated) string table offset, print the
2001 string (if any) associated with this symbol. */
2003 if ((strx + file_string_table_offset) < stabstr_size)
2004 printf (" %s", &strtab[strx + file_string_table_offset]);
2013 dump_section_stabs (abfd, stabsect_name, strsect_name)
2015 char *stabsect_name;
2020 /* Check for section names for which stabsect_name is a prefix, to
2021 handle .stab0, etc. */
2022 for (s = abfd->sections;
2028 len = strlen (stabsect_name);
2030 /* If the prefix matches, and the files section name ends with a
2031 nul or a digit, then we match. I.e., we want either an exact
2032 match or a section followed by a number. */
2033 if (strncmp (stabsect_name, s->name, len) == 0
2034 && (s->name[len] == '\000'
2035 || isdigit ((unsigned char) s->name[len])))
2037 if (read_section_stabs (abfd, s->name, strsect_name))
2039 print_section_stabs (abfd, s->name, strsect_name);
2048 dump_bfd_header (abfd)
2053 printf (_("architecture: %s, "),
2054 bfd_printable_arch_mach (bfd_get_arch (abfd),
2055 bfd_get_mach (abfd)));
2056 printf (_("flags 0x%08x:\n"), abfd->flags);
2058 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2059 PF (HAS_RELOC, "HAS_RELOC");
2060 PF (EXEC_P, "EXEC_P");
2061 PF (HAS_LINENO, "HAS_LINENO");
2062 PF (HAS_DEBUG, "HAS_DEBUG");
2063 PF (HAS_SYMS, "HAS_SYMS");
2064 PF (HAS_LOCALS, "HAS_LOCALS");
2065 PF (DYNAMIC, "DYNAMIC");
2066 PF (WP_TEXT, "WP_TEXT");
2067 PF (D_PAGED, "D_PAGED");
2068 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
2069 printf (_("\nstart address 0x"));
2070 printf_vma (abfd->start_address);
2075 dump_bfd_private_header (abfd)
2078 bfd_print_private_bfd_data (abfd, stdout);
2081 /* Dump selected contents of ABFD */
2087 /* If we are adjusting section VMA's, change them all now. Changing
2088 the BFD information is a hack. However, we must do it, or
2089 bfd_find_nearest_line will not do the right thing. */
2090 if (adjust_section_vma != 0)
2094 for (s = abfd->sections; s != NULL; s = s->next)
2096 s->vma += adjust_section_vma;
2097 s->lma += adjust_section_vma;
2101 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
2104 print_arelt_descr (stdout, abfd, true);
2105 if (dump_file_header)
2106 dump_bfd_header (abfd);
2107 if (dump_private_headers)
2108 dump_bfd_private_header (abfd);
2110 if (dump_section_headers)
2111 dump_headers (abfd);
2112 if (dump_symtab || dump_reloc_info || disassemble || dump_debugging)
2114 syms = slurp_symtab (abfd);
2116 if (dump_dynamic_symtab || dump_dynamic_reloc_info)
2118 dynsyms = slurp_dynamic_symtab (abfd);
2121 dump_symbols (abfd, false);
2122 if (dump_dynamic_symtab)
2123 dump_symbols (abfd, true);
2124 if (dump_stab_section_info)
2126 if (dump_reloc_info && ! disassemble)
2128 if (dump_dynamic_reloc_info)
2129 dump_dynamic_relocs (abfd);
2130 if (dump_section_contents)
2133 disassemble_data (abfd);
2138 dhandle = read_debugging_info (abfd, syms, symcount);
2139 if (dhandle != NULL)
2141 if (! print_debugging_info (stdout, dhandle))
2143 non_fatal (_("%s: printing debugging information failed"),
2144 bfd_get_filename (abfd));
2167 if (bfd_check_format_matches (abfd, bfd_object, &matching))
2173 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
2175 nonfatal (bfd_get_filename (abfd));
2176 list_matching_formats (matching);
2181 if (bfd_get_error () != bfd_error_file_not_recognized)
2183 nonfatal (bfd_get_filename (abfd));
2187 if (bfd_check_format_matches (abfd, bfd_core, &matching))
2193 nonfatal (bfd_get_filename (abfd));
2195 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
2197 list_matching_formats (matching);
2203 display_file (filename, target)
2207 bfd *file, *arfile = (bfd *) NULL;
2209 file = bfd_openr (filename, target);
2212 nonfatal (filename);
2216 if (bfd_check_format (file, bfd_archive) == true)
2218 bfd *last_arfile = NULL;
2220 printf (_("In archive %s:\n"), bfd_get_filename (file));
2223 bfd_set_error (bfd_error_no_error);
2225 arfile = bfd_openr_next_archived_file (file, arfile);
2228 if (bfd_get_error () != bfd_error_no_more_archived_files)
2229 nonfatal (bfd_get_filename (file));
2233 display_bfd (arfile);
2235 if (last_arfile != NULL)
2236 bfd_close (last_arfile);
2237 last_arfile = arfile;
2240 if (last_arfile != NULL)
2241 bfd_close (last_arfile);
2249 /* Actually display the various requested regions */
2257 bfd_size_type datasize = 0;
2258 bfd_size_type addr_offset;
2259 bfd_size_type start_offset, stop_offset;
2260 unsigned int opb = bfd_octets_per_byte (abfd);
2262 for (section = abfd->sections; section != NULL; section =
2267 if (only == (char *) NULL ||
2268 strcmp (only, section->name) == 0)
2270 if (section->flags & SEC_HAS_CONTENTS)
2272 printf (_("Contents of section %s:\n"), section->name);
2274 if (bfd_section_size (abfd, section) == 0)
2276 data = (bfd_byte *) xmalloc ((size_t) bfd_section_size (abfd, section));
2277 datasize = bfd_section_size (abfd, section);
2280 bfd_get_section_contents (abfd, section, (PTR) data, 0, bfd_section_size (abfd, section));
2282 if (start_address == (bfd_vma) -1
2283 || start_address < section->vma)
2286 start_offset = start_address - section->vma;
2287 if (stop_address == (bfd_vma) -1)
2288 stop_offset = bfd_section_size (abfd, section) / opb;
2291 if (stop_address < section->vma)
2294 stop_offset = stop_address - section->vma;
2295 if (stop_offset > bfd_section_size (abfd, section) / opb)
2296 stop_offset = bfd_section_size (abfd, section) / opb;
2298 for (addr_offset = start_offset;
2299 addr_offset < stop_offset; addr_offset += onaline)
2303 printf (" %04lx ", (unsigned long int)
2304 (addr_offset + section->vma));
2305 for (j = addr_offset * opb;
2306 j < addr_offset * opb + onaline; j++)
2308 if (j < stop_offset * opb)
2309 printf ("%02x", (unsigned) (data[j]));
2317 for (j = addr_offset; j < addr_offset * opb + onaline; j++)
2319 if (j >= stop_offset * opb)
2322 printf ("%c", isprint (data[j]) ? data[j] : '.');
2332 /* Should perhaps share code and display with nm? */
2334 dump_symbols (abfd, dynamic)
2335 bfd *abfd ATTRIBUTE_UNUSED;
2348 printf ("DYNAMIC SYMBOL TABLE:\n");
2356 printf ("SYMBOL TABLE:\n");
2359 for (count = 0; count < max; count++)
2363 bfd *cur_bfd = bfd_asymbol_bfd (*current);
2365 if (cur_bfd != NULL)
2370 name = bfd_asymbol_name (*current);
2372 if (do_demangle && name != NULL && *name != '\0')
2376 /* If we want to demangle the name, we demangle it
2377 here, and temporarily clobber it while calling
2378 bfd_print_symbol. FIXME: This is a gross hack. */
2381 if (bfd_get_symbol_leading_char (cur_bfd) == *n)
2383 alloc = cplus_demangle (n, DMGL_ANSI | DMGL_PARAMS);
2385 (*current)->name = alloc;
2387 (*current)->name = n;
2390 bfd_print_symbol (cur_bfd, stdout, *current,
2391 bfd_print_symbol_all);
2393 (*current)->name = name;
2414 for (a = abfd->sections; a != (asection *) NULL; a = a->next)
2418 if (bfd_is_abs_section (a))
2420 if (bfd_is_und_section (a))
2422 if (bfd_is_com_section (a))
2427 if (strcmp (only, a->name))
2430 else if ((a->flags & SEC_RELOC) == 0)
2433 relsize = bfd_get_reloc_upper_bound (abfd, a);
2435 bfd_fatal (bfd_get_filename (abfd));
2437 printf ("RELOCATION RECORDS FOR [%s]:", a->name);
2441 printf (" (none)\n\n");
2445 relpp = (arelent **) xmalloc (relsize);
2446 relcount = bfd_canonicalize_reloc (abfd, a, relpp, syms);
2448 bfd_fatal (bfd_get_filename (abfd));
2449 else if (relcount == 0)
2451 printf (" (none)\n\n");
2456 dump_reloc_set (abfd, a, relpp, relcount);
2465 dump_dynamic_relocs (abfd)
2472 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2474 bfd_fatal (bfd_get_filename (abfd));
2476 printf ("DYNAMIC RELOCATION RECORDS");
2480 printf (" (none)\n\n");
2484 relpp = (arelent **) xmalloc (relsize);
2485 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
2487 bfd_fatal (bfd_get_filename (abfd));
2488 else if (relcount == 0)
2490 printf (" (none)\n\n");
2495 dump_reloc_set (abfd, (asection *) NULL, relpp, relcount);
2503 dump_reloc_set (abfd, sec, relpp, relcount)
2510 char *last_filename, *last_functionname;
2511 unsigned int last_line;
2513 /* Get column headers lined up reasonably. */
2519 sprintf_vma (buf, (bfd_vma) -1);
2520 width = strlen (buf) - 7;
2522 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2525 last_filename = NULL;
2526 last_functionname = NULL;
2529 for (p = relpp; relcount && *p != (arelent *) NULL; p++, relcount--)
2532 const char *filename, *functionname;
2534 const char *sym_name;
2535 const char *section_name;
2537 if (start_address != (bfd_vma) -1
2538 && q->address < start_address)
2540 if (stop_address != (bfd_vma) -1
2541 && q->address > stop_address)
2544 if (with_line_numbers
2546 && bfd_find_nearest_line (abfd, sec, syms, q->address,
2547 &filename, &functionname, &line))
2549 if (functionname != NULL
2550 && (last_functionname == NULL
2551 || strcmp (functionname, last_functionname) != 0))
2553 printf ("%s():\n", functionname);
2554 if (last_functionname != NULL)
2555 free (last_functionname);
2556 last_functionname = xstrdup (functionname);
2559 && (line != last_line
2560 || (filename != NULL
2561 && last_filename != NULL
2562 && strcmp (filename, last_filename) != 0)))
2564 printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
2566 if (last_filename != NULL)
2567 free (last_filename);
2568 if (filename == NULL)
2569 last_filename = NULL;
2571 last_filename = xstrdup (filename);
2575 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2577 sym_name = (*(q->sym_ptr_ptr))->name;
2578 section_name = (*(q->sym_ptr_ptr))->section->name;
2583 section_name = NULL;
2587 printf_vma (q->address);
2589 printf (" %-16s ", q->howto->name);
2591 printf (" %-16d ", q->howto->type);
2592 objdump_print_symname (abfd, (struct disassemble_info *) NULL,
2597 if (section_name == (CONST char *) NULL)
2598 section_name = "*unknown*";
2599 printf_vma (q->address);
2600 printf (" %-16s [%s]",
2607 printf_vma (q->addend);
2613 /* The length of the longest architecture name + 1. */
2614 #define LONGEST_ARCH sizeof("powerpc:common")
2617 endian_string (endian)
2618 enum bfd_endian endian;
2620 if (endian == BFD_ENDIAN_BIG)
2621 return "big endian";
2622 else if (endian == BFD_ENDIAN_LITTLE)
2623 return "little endian";
2625 return "endianness unknown";
2628 /* List the targets that BFD is configured to support, each followed
2629 by its endianness and the architectures it supports. */
2632 display_target_list ()
2634 extern bfd_target *bfd_target_vector[];
2638 dummy_name = make_temp_file (NULL);
2639 for (t = 0; bfd_target_vector[t]; t++)
2641 bfd_target *p = bfd_target_vector[t];
2642 bfd *abfd = bfd_openw (dummy_name, p->name);
2645 printf ("%s\n (header %s, data %s)\n", p->name,
2646 endian_string (p->header_byteorder),
2647 endian_string (p->byteorder));
2651 nonfatal (dummy_name);
2655 if (! bfd_set_format (abfd, bfd_object))
2657 if (bfd_get_error () != bfd_error_invalid_operation)
2659 bfd_close_all_done (abfd);
2663 for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
2664 if (bfd_set_arch_mach (abfd, (enum bfd_architecture) a, 0))
2666 bfd_printable_arch_mach ((enum bfd_architecture) a, 0));
2667 bfd_close_all_done (abfd);
2669 unlink (dummy_name);
2673 /* Print a table showing which architectures are supported for entries
2674 FIRST through LAST-1 of bfd_target_vector (targets across,
2675 architectures down). */
2678 display_info_table (first, last)
2682 extern bfd_target *bfd_target_vector[];
2686 /* Print heading of target names. */
2687 printf ("\n%*s", (int) LONGEST_ARCH, " ");
2688 for (t = first; t < last && bfd_target_vector[t]; t++)
2689 printf ("%s ", bfd_target_vector[t]->name);
2692 dummy_name = make_temp_file (NULL);
2693 for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
2694 if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0)
2696 printf ("%*s ", (int) LONGEST_ARCH - 1,
2697 bfd_printable_arch_mach (a, 0));
2698 for (t = first; t < last && bfd_target_vector[t]; t++)
2700 bfd_target *p = bfd_target_vector[t];
2702 bfd *abfd = bfd_openw (dummy_name, p->name);
2712 if (! bfd_set_format (abfd, bfd_object))
2714 if (bfd_get_error () != bfd_error_invalid_operation)
2722 if (! bfd_set_arch_mach (abfd, a, 0))
2727 printf ("%s ", p->name);
2730 int l = strlen (p->name);
2736 bfd_close_all_done (abfd);
2740 unlink (dummy_name);
2744 /* Print tables of all the target-architecture combinations that
2745 BFD has been configured to support. */
2748 display_target_tables ()
2751 extern bfd_target *bfd_target_vector[];
2755 colum = getenv ("COLUMNS");
2757 columns = atoi (colum);
2762 while (bfd_target_vector[t] != NULL)
2766 wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1;
2768 while (wid < columns && bfd_target_vector[t] != NULL)
2772 newwid = wid + strlen (bfd_target_vector[t]->name) + 1;
2773 if (newwid >= columns)
2778 display_info_table (oldt, t);
2785 printf (_("BFD header file version %s\n"), BFD_VERSION);
2786 display_target_list ();
2787 display_target_tables ();
2796 char *target = default_target;
2797 boolean seenflag = false;
2799 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
2800 setlocale (LC_MESSAGES, "");
2802 bindtextdomain (PACKAGE, LOCALEDIR);
2803 textdomain (PACKAGE);
2805 program_name = *argv;
2806 xmalloc_set_program_name (program_name);
2808 START_PROGRESS (program_name, 0);
2811 set_default_bfd_target ();
2813 while ((c = getopt_long (argc, argv, "pib:m:M:VCdDlfahHrRtTxsSj:wE:zgG",
2814 long_options, (int *) 0))
2820 break; /* we've been given a long option */
2825 disassembler_options = optarg;
2831 with_line_numbers = true;
2840 enum demangling_styles style;
2842 style = cplus_demangle_name_to_style (optarg);
2843 if (style == unknown_demangling)
2844 fatal (_("unknown demangling style `%s'"),
2847 cplus_demangle_set_style (style);
2853 case OPTION_ADJUST_VMA:
2854 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
2856 case OPTION_START_ADDRESS:
2857 start_address = parse_vma (optarg, "--start-address");
2859 case OPTION_STOP_ADDRESS:
2860 stop_address = parse_vma (optarg, "--stop-address");
2863 if (strcmp (optarg, "B") == 0)
2864 endian = BFD_ENDIAN_BIG;
2865 else if (strcmp (optarg, "L") == 0)
2866 endian = BFD_ENDIAN_LITTLE;
2869 non_fatal (_("unrecognized -E option"));
2874 if (strncmp (optarg, "big", strlen (optarg)) == 0)
2875 endian = BFD_ENDIAN_BIG;
2876 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
2877 endian = BFD_ENDIAN_LITTLE;
2880 non_fatal (_("unrecognized --endian type `%s'"), optarg);
2886 dump_file_header = true;
2890 formats_info = true;
2894 dump_private_headers = true;
2898 dump_private_headers = true;
2900 dump_reloc_info = true;
2901 dump_file_header = true;
2902 dump_ar_hdrs = true;
2903 dump_section_headers = true;
2911 dump_dynamic_symtab = true;
2919 disassemble_zeroes = true;
2923 disassemble_all = true;
2928 with_source_code = true;
2936 dump_stab_section_info = true;
2940 dump_section_contents = true;
2944 dump_reloc_info = true;
2948 dump_dynamic_reloc_info = true;
2952 dump_ar_hdrs = true;
2956 dump_section_headers = true;
2963 show_version = true;
2973 print_version ("objdump");
2975 if (seenflag == false)
2983 display_file ("a.out", target);
2985 for (; optind < argc;)
2986 display_file (argv[optind++], target);
2989 END_PROGRESS (program_name);