1 /* objdump.c -- dump information about an object file.
2 Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
3 Free Software Foundation, Inc.
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 #ifdef ANSI_PROTOTYPES
38 /* Internal headers for the ELF .stab-dump code - sorry. */
39 #define BYTES_IN_WORD 32
40 #include "aout/aout64.h"
42 #ifdef NEED_DECLARATION_FPRINTF
43 /* This is needed by INIT_DISASSEMBLE_INFO. */
44 extern int fprintf PARAMS ((FILE *, const char *, ...));
48 static int exit_status = 0;
50 static char *default_target = NULL; /* default at runtime */
52 static int show_version = 0; /* show the version number */
53 static int dump_section_contents; /* -s */
54 static int dump_section_headers; /* -h */
55 static boolean dump_file_header; /* -f */
56 static int dump_symtab; /* -t */
57 static int dump_dynamic_symtab; /* -T */
58 static int dump_reloc_info; /* -r */
59 static int dump_dynamic_reloc_info; /* -R */
60 static int dump_ar_hdrs; /* -a */
61 static int dump_private_headers; /* -p */
62 static int prefix_addresses; /* --prefix-addresses */
63 static int with_line_numbers; /* -l */
64 static boolean with_source_code; /* -S */
65 static int show_raw_insn; /* --show-raw-insn */
66 static int dump_stab_section_info; /* --stabs */
67 static int do_demangle; /* -C, --demangle */
68 static boolean disassemble; /* -d */
69 static boolean disassemble_all; /* -D */
70 static int disassemble_zeroes; /* --disassemble-zeroes */
71 static boolean formats_info; /* -i */
72 static char *only; /* -j secname */
73 static int wide_output; /* -w */
74 static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
75 static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
76 static int dump_debugging; /* --debugging */
77 static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
79 /* Extra info to pass to the disassembler address printing function. */
80 struct objdump_disasm_info {
86 /* Architecture to disassemble for, or default if NULL. */
87 static char *machine = (char *) NULL;
89 /* Target specific options to the disassembler. */
90 static char *disassembler_options = (char *) NULL;
92 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
93 static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
95 /* The symbol table. */
96 static asymbol **syms;
98 /* Number of symbols in `syms'. */
99 static long symcount = 0;
101 /* The sorted symbol table. */
102 static asymbol **sorted_syms;
104 /* Number of symbols in `sorted_syms'. */
105 static long sorted_symcount = 0;
107 /* The dynamic symbol table. */
108 static asymbol **dynsyms;
110 /* Number of symbols in `dynsyms'. */
111 static long dynsymcount = 0;
113 /* Static declarations. */
116 usage PARAMS ((FILE *, int));
119 nonfatal PARAMS ((const char *));
122 display_file PARAMS ((char *filename, char *target));
125 dump_section_header PARAMS ((bfd *, asection *, PTR));
128 dump_headers PARAMS ((bfd *));
131 dump_data PARAMS ((bfd *abfd));
134 dump_relocs PARAMS ((bfd *abfd));
137 dump_dynamic_relocs PARAMS ((bfd * abfd));
140 dump_reloc_set PARAMS ((bfd *, asection *, arelent **, long));
143 dump_symbols PARAMS ((bfd *abfd, boolean dynamic));
146 dump_bfd_header PARAMS ((bfd *));
149 dump_bfd_private_header PARAMS ((bfd *));
152 display_bfd PARAMS ((bfd *abfd));
155 display_target_list PARAMS ((void));
158 display_info_table PARAMS ((int, int));
161 display_target_tables PARAMS ((void));
164 display_info PARAMS ((void));
167 objdump_print_value PARAMS ((bfd_vma, struct disassemble_info *, boolean));
170 objdump_print_symname PARAMS ((bfd *, struct disassemble_info *, asymbol *));
173 find_symbol_for_address PARAMS ((bfd *, asection *, bfd_vma, boolean, long *));
176 objdump_print_addr_with_sym PARAMS ((bfd *, asection *, asymbol *, bfd_vma,
177 struct disassemble_info *, boolean));
180 objdump_print_addr PARAMS ((bfd_vma, struct disassemble_info *, boolean));
183 objdump_print_address PARAMS ((bfd_vma, struct disassemble_info *));
186 show_line PARAMS ((bfd *, asection *, bfd_vma));
189 disassemble_bytes PARAMS ((struct disassemble_info *, disassembler_ftype,
190 boolean, bfd_byte *, bfd_vma, bfd_vma,
191 arelent ***, arelent **));
194 disassemble_data PARAMS ((bfd *));
197 endian_string PARAMS ((enum bfd_endian));
200 slurp_symtab PARAMS ((bfd *));
203 slurp_dynamic_symtab PARAMS ((bfd *));
206 remove_useless_symbols PARAMS ((asymbol **, long));
209 compare_symbols PARAMS ((const PTR, const PTR));
212 compare_relocs PARAMS ((const PTR, const PTR));
215 dump_stabs PARAMS ((bfd *));
218 read_section_stabs PARAMS ((bfd *, const char *, const char *));
221 print_section_stabs PARAMS ((bfd *, const char *, const char *));
224 usage (stream, status)
228 fprintf (stream, _("Usage: %s <switches> file(s)\n"), program_name);
229 fprintf (stream, _(" At least one of the following switches must be given:\n"));
230 fprintf (stream, _("\
231 -a --archive-headers Display archive header information\n\
232 -f --file-headers Display the contents of the overall file header\n\
233 -p --private-headers Display object format specific file header contents\n\
234 -h --[section-]headers Display the contents of the section headers\n\
235 -x --all-headers Display the contents of all headers\n\
236 -d --disassemble Display assembler contents of executable sections\n\
237 -D --disassemble-all Display assembler contents of all sections\n\
238 -S --source Intermix source code with disassembly\n\
239 -s --full-contents Display the full contents of all sections requested\n\
240 -g --debugging Display debug information in object file\n\
241 -G --stabs Display the STABS contents of an ELF format file\n\
242 -t --syms Display the contents of the symbol table(s)\n\
243 -T --dynamic-syms Display the contents of the dynamic symbol table\n\
244 -r --reloc Display the relocation entries in the file\n\
245 -R --dynamic-reloc Display the dynamic relocation entries in the file\n\
246 -V --version Display this program's version number\n\
247 -i --info List object formats and architectures supported\n\
248 -H --help Display this information\n\
252 fprintf (stream, _("\n The following switches are optional:\n"));
253 fprintf (stream, _("\
254 -b --target <bfdname> Specify the target object format as <bfdname>\n\
255 -m --architecture <machine> Specify the target architecture as <machine>\n\
256 -j --section <name> Only display information for section <name>\n\
257 -M --disassembler-options <o> Pass text <o> on to the disassembler\n\
258 -EB --endian=big Assume big endian format when disassembling\n\
259 -EL --endian=little Assume little endian format when disassembling\n\
260 -l --line-numbers Include line numbers and filenames in output\n\
261 -C --demangle Decode mangled/processed symbol names\n\
262 -w --wide Format output for more than 80 columns\n\
263 -z --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
264 --start-address <addr> Only process data whoes address is >= <addr>\n\
265 --stop-address <addr> Only process data whoes address is <= <addr>\n\
266 --prefix-addresses Print complete address alongside disassembly\n\
267 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
268 --adjust-vma <offset> Add <offset> to all displayed section addresses\n\
270 list_supported_targets (program_name, stream);
272 disassembler_usage (stream);
275 fprintf (stream, _("Report bugs to bug-gnu-utils@gnu.org\n"));
279 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
281 #define OPTION_ENDIAN (150)
282 #define OPTION_START_ADDRESS (OPTION_ENDIAN + 1)
283 #define OPTION_STOP_ADDRESS (OPTION_START_ADDRESS + 1)
284 #define OPTION_ADJUST_VMA (OPTION_STOP_ADDRESS + 1)
286 static struct option long_options[]=
288 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
289 {"all-headers", no_argument, NULL, 'x'},
290 {"private-headers", no_argument, NULL, 'p'},
291 {"architecture", required_argument, NULL, 'm'},
292 {"archive-headers", no_argument, NULL, 'a'},
293 {"debugging", no_argument, NULL, 'g'},
294 {"demangle", no_argument, NULL, 'C'},
295 {"disassemble", no_argument, NULL, 'd'},
296 {"disassemble-all", no_argument, NULL, 'D'},
297 {"disassembler-options", required_argument, NULL, 'M'},
298 {"disassemble-zeroes", no_argument, NULL, 'z'},
299 {"dynamic-reloc", no_argument, NULL, 'R'},
300 {"dynamic-syms", no_argument, NULL, 'T'},
301 {"endian", required_argument, NULL, OPTION_ENDIAN},
302 {"file-headers", no_argument, NULL, 'f'},
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 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_SMALL_DATA, "SMALL_DATA");
377 PF (SEC_SHARED, "SHARED");
379 if ((section->flags & SEC_LINK_ONCE) != 0)
383 switch (section->flags & SEC_LINK_DUPLICATES)
387 case SEC_LINK_DUPLICATES_DISCARD:
388 ls = "LINK_ONCE_DISCARD";
390 case SEC_LINK_DUPLICATES_ONE_ONLY:
391 ls = "LINK_ONCE_ONE_ONLY";
393 case SEC_LINK_DUPLICATES_SAME_SIZE:
394 ls = "LINK_ONCE_SAME_SIZE";
396 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
397 ls = "LINK_ONCE_SAME_CONTENTS";
400 printf ("%s%s", comma, ls);
402 if (section->comdat != NULL)
403 printf (" (COMDAT %s %ld)", section->comdat->name,
404 section->comdat->symbol);
417 printf (_("Sections:\n"));
420 printf (_("Idx Name Size VMA LMA File off Algn"));
422 printf (_("Idx Name Size VMA LMA File off Algn"));
426 printf (_(" Flags"));
429 bfd_map_over_sections (abfd, dump_section_header, (PTR) NULL);
436 asymbol **sy = (asymbol **) NULL;
439 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
441 fprintf (stderr, _("%s: no symbols\n"), bfd_get_filename (abfd));
446 storage = bfd_get_symtab_upper_bound (abfd);
448 bfd_fatal (bfd_get_filename (abfd));
452 sy = (asymbol **) xmalloc (storage);
454 symcount = bfd_canonicalize_symtab (abfd, sy);
456 bfd_fatal (bfd_get_filename (abfd));
458 fprintf (stderr, _("%s: no symbols\n"), bfd_get_filename (abfd));
462 /* Read in the dynamic symbols. */
465 slurp_dynamic_symtab (abfd)
468 asymbol **sy = (asymbol **) NULL;
471 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
474 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
476 fprintf (stderr, _("%s: %s: not a dynamic object\n"),
477 program_name, bfd_get_filename (abfd));
482 bfd_fatal (bfd_get_filename (abfd));
487 sy = (asymbol **) xmalloc (storage);
489 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
491 bfd_fatal (bfd_get_filename (abfd));
492 if (dynsymcount == 0)
493 fprintf (stderr, _("%s: %s: No dynamic symbols\n"),
494 program_name, 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 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 l = line - SHOW_PRECEDING_CONTEXT_LINES;
1133 skip_to_line (p, l, false);
1135 skip_to_line (p, line, true);
1140 if (functionname != NULL
1141 && (prev_functionname == NULL
1142 || strcmp (functionname, prev_functionname) != 0))
1144 if (prev_functionname != NULL)
1145 free (prev_functionname);
1146 prev_functionname = xmalloc (strlen (functionname) + 1);
1147 strcpy (prev_functionname, functionname);
1150 if (line > 0 && line != prev_line)
1154 /* Pseudo FILE object for strings. */
1162 /* sprintf to a "stream" */
1165 #ifdef ANSI_PROTOTYPES
1166 objdump_sprintf (SFILE *f, const char *format, ...)
1168 objdump_sprintf (va_alist)
1172 #ifndef ANSI_PROTOTYPES
1180 #ifdef ANSI_PROTOTYPES
1181 va_start (args, format);
1184 f = va_arg (args, SFILE *);
1185 format = va_arg (args, const char *);
1188 vasprintf (&buf, format, args);
1194 fprintf (stderr, _("Out of virtual memory\n"));
1200 while ((size_t) ((f->buffer + f->size) - f->current) < n + 1)
1204 curroff = f->current - f->buffer;
1206 f->buffer = xrealloc (f->buffer, f->size);
1207 f->current = f->buffer + curroff;
1210 memcpy (f->current, buf, n);
1212 f->current[0] = '\0';
1219 /* The number of zeroes we want to see before we start skipping them.
1220 The number is arbitrarily chosen. */
1222 #define SKIP_ZEROES (8)
1224 /* The number of zeroes to skip at the end of a section. If the
1225 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1226 SKIP_ZEROES, they will be disassembled. If there are fewer than
1227 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1228 attempt to avoid disassembling zeroes inserted by section
1231 #define SKIP_ZEROES_AT_END (3)
1233 /* Disassemble some data in memory between given values. */
1236 disassemble_bytes (info, disassemble_fn, insns, data,
1237 start_offset, stop_offset, relppp,
1239 struct disassemble_info *info;
1240 disassembler_ftype disassemble_fn;
1243 bfd_vma start_offset;
1244 bfd_vma stop_offset;
1248 struct objdump_disasm_info *aux;
1250 int octets_per_line;
1252 int skip_addr_chars;
1253 bfd_vma addr_offset;
1254 int opb = info->octets_per_byte;
1256 aux = (struct objdump_disasm_info *) info->application_data;
1260 octets_per_line = 4;
1262 octets_per_line = 16;
1264 /* Figure out how many characters to skip at the start of an
1265 address, to make the disassembly look nicer. We discard leading
1266 zeroes in chunks of 4, ensuring that there is always a leading
1268 skip_addr_chars = 0;
1269 if (! prefix_addresses)
1274 sprintf_vma (buf, section->vma +
1275 bfd_section_size (section->owner, section) / opb);
1277 while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0'
1280 skip_addr_chars += 4;
1285 info->insn_info_valid = 0;
1288 addr_offset = start_offset;
1289 while (addr_offset < stop_offset)
1293 boolean need_nl = false;
1295 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1297 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1300 if (! disassemble_zeroes
1301 && (info->insn_info_valid == 0
1302 || info->branch_delay_insns == 0)
1303 && (z - addr_offset * opb >= SKIP_ZEROES
1304 || (z == stop_offset * opb &&
1305 z - addr_offset * opb < SKIP_ZEROES_AT_END)))
1309 /* If there are more nonzero octets to follow, we only skip
1310 zeroes in multiples of 4, to try to avoid running over
1311 the start of an instruction which happens to start with
1313 if (z != stop_offset * opb)
1314 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1316 octets = z - addr_offset * opb;
1327 if (with_line_numbers || with_source_code)
1328 show_line (aux->abfd, section, addr_offset);
1330 if (! prefix_addresses)
1334 sprintf_vma (buf, section->vma + addr_offset);
1335 for (s = buf + skip_addr_chars; *s == '0'; s++)
1339 printf ("%s:\t", buf + skip_addr_chars);
1343 aux->require_sec = true;
1344 objdump_print_address (section->vma + addr_offset, info);
1345 aux->require_sec = false;
1352 sfile.buffer = xmalloc (sfile.size);
1353 sfile.current = sfile.buffer;
1354 info->fprintf_func = (fprintf_ftype) objdump_sprintf;
1355 info->stream = (FILE *) &sfile;
1356 info->bytes_per_line = 0;
1357 info->bytes_per_chunk = 0;
1359 /* FIXME: This is wrong. It tests the number of octets
1360 in the last instruction, not the current one. */
1361 if (*relppp < relppend
1362 && (**relppp)->address >= addr_offset
1363 && (**relppp)->address < addr_offset + octets / opb)
1364 info->flags = INSN_HAS_RELOC;
1368 octets = (*disassemble_fn) (section->vma + addr_offset, info);
1369 info->fprintf_func = (fprintf_ftype) fprintf;
1370 info->stream = stdout;
1371 if (info->bytes_per_line != 0)
1372 octets_per_line = info->bytes_per_line;
1375 if (sfile.current != sfile.buffer)
1376 printf ("%s\n", sfile.buffer);
1377 free (sfile.buffer);
1385 octets = octets_per_line;
1386 if (addr_offset + octets / opb > stop_offset)
1387 octets = (stop_offset - addr_offset) * opb;
1389 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1391 if (isprint (data[j]))
1392 buf[j - addr_offset * opb] = data[j];
1394 buf[j - addr_offset * opb] = '.';
1396 buf[j - addr_offset * opb] = '\0';
1399 if (prefix_addresses
1401 : show_raw_insn >= 0)
1405 /* If ! prefix_addresses and ! wide_output, we print
1406 octets_per_line octets per line. */
1408 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1409 pb = octets_per_line;
1411 if (info->bytes_per_chunk)
1412 bpc = info->bytes_per_chunk;
1416 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1419 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1421 for (k = bpc - 1; k >= 0; k--)
1422 printf ("%02x", (unsigned) data[j + k]);
1427 for (k = 0; k < bpc; k++)
1428 printf ("%02x", (unsigned) data[j + k]);
1433 for (; pb < octets_per_line; pb += bpc)
1437 for (k = 0; k < bpc; k++)
1442 /* Separate raw data from instruction by extra space. */
1453 printf ("%s", sfile.buffer);
1454 free (sfile.buffer);
1457 if (prefix_addresses
1459 : show_raw_insn >= 0)
1467 j = addr_offset * opb + pb;
1469 sprintf_vma (buf, section->vma + j / opb);
1470 for (s = buf + skip_addr_chars; *s == '0'; s++)
1474 printf ("%s:\t", buf + skip_addr_chars);
1476 pb += octets_per_line;
1479 for (; j < addr_offset * opb + pb; j += bpc)
1483 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1485 for (k = bpc - 1; k >= 0; k--)
1486 printf ("%02x", (unsigned) data[j + k]);
1491 for (k = 0; k < bpc; k++)
1492 printf ("%02x", (unsigned) data[j + k]);
1506 && (section->flags & SEC_RELOC) != 0)
1508 while ((*relppp) < relppend
1509 && ((**relppp)->address >= (bfd_vma) addr_offset
1510 && (**relppp)->address < (bfd_vma) addr_offset + octets / opb))
1521 objdump_print_value (section->vma + q->address, info, true);
1523 printf (": %s\t", q->howto->name);
1525 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1526 printf ("*unknown*");
1529 const char *sym_name;
1531 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1532 if (sym_name != NULL && *sym_name != '\0')
1533 objdump_print_symname (aux->abfd, info, *q->sym_ptr_ptr);
1538 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1539 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1540 if (sym_name == NULL || *sym_name == '\0')
1541 sym_name = "*unknown*";
1542 printf ("%s", sym_name);
1549 objdump_print_value (q->addend, info, true);
1561 addr_offset += octets / opb;
1565 /* Disassemble the contents of an object file. */
1568 disassemble_data (abfd)
1572 disassembler_ftype disassemble_fn;
1573 struct disassemble_info disasm_info;
1574 struct objdump_disasm_info aux;
1576 int opb = bfd_octets_per_byte (abfd);
1579 prev_functionname = NULL;
1582 /* We make a copy of syms to sort. We don't want to sort syms
1583 because that will screw up the relocs. */
1584 sorted_syms = (asymbol **) xmalloc (symcount * sizeof (asymbol *));
1585 memcpy (sorted_syms, syms, symcount * sizeof (asymbol *));
1587 sorted_symcount = remove_useless_symbols (sorted_syms, symcount);
1589 /* Sort the symbols into section and symbol order */
1590 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
1592 INIT_DISASSEMBLE_INFO(disasm_info, stdout, fprintf);
1593 disasm_info.application_data = (PTR) &aux;
1595 aux.require_sec = false;
1596 disasm_info.print_address_func = objdump_print_address;
1597 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
1598 disasm_info.octets_per_byte = opb;
1600 if (machine != (char *) NULL)
1602 const bfd_arch_info_type *info = bfd_scan_arch (machine);
1605 fprintf (stderr, _("%s: Can't use supplied machine %s\n"),
1610 abfd->arch_info = info;
1613 if (endian != BFD_ENDIAN_UNKNOWN)
1615 struct bfd_target *xvec;
1617 xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
1618 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
1619 xvec->byteorder = endian;
1623 disassemble_fn = disassembler (abfd);
1624 if (!disassemble_fn)
1626 fprintf (stderr, _("%s: Can't disassemble for architecture %s\n"),
1628 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
1633 disasm_info.flavour = bfd_get_flavour (abfd);
1634 disasm_info.arch = bfd_get_arch (abfd);
1635 disasm_info.mach = bfd_get_mach (abfd);
1636 disasm_info.disassembler_options = disassembler_options;
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;
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 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 fprintf (stderr, _("%s: %s has no %s section\n"), program_name,
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 fprintf (stderr, _("%s: Reading %s section of %s failed: %s\n"),
1899 program_name, stabsect_name, bfd_get_filename (abfd),
1900 bfd_errmsg (bfd_get_error ()));
1907 if (! bfd_get_section_contents (abfd, stabstrsect, (PTR) strtab, 0,
1910 fprintf (stderr, _("%s: Reading %s section of %s failed: %s\n"),
1911 program_name, 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))
2144 _("%s: printing debugging information failed\n"),
2145 bfd_get_filename (abfd));
2168 if (bfd_check_format_matches (abfd, bfd_object, &matching))
2174 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
2176 nonfatal (bfd_get_filename (abfd));
2177 list_matching_formats (matching);
2182 if (bfd_get_error () != bfd_error_file_not_recognized)
2184 nonfatal (bfd_get_filename (abfd));
2188 if (bfd_check_format_matches (abfd, bfd_core, &matching))
2194 nonfatal (bfd_get_filename (abfd));
2196 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
2198 list_matching_formats (matching);
2204 display_file (filename, target)
2208 bfd *file, *arfile = (bfd *) NULL;
2210 file = bfd_openr (filename, target);
2213 nonfatal (filename);
2217 if (bfd_check_format (file, bfd_archive) == true)
2219 bfd *last_arfile = NULL;
2221 printf (_("In archive %s:\n"), bfd_get_filename (file));
2224 bfd_set_error (bfd_error_no_error);
2226 arfile = bfd_openr_next_archived_file (file, arfile);
2229 if (bfd_get_error () != bfd_error_no_more_archived_files)
2230 nonfatal (bfd_get_filename (file));
2234 display_bfd (arfile);
2236 if (last_arfile != NULL)
2237 bfd_close (last_arfile);
2238 last_arfile = arfile;
2241 if (last_arfile != NULL)
2242 bfd_close (last_arfile);
2250 /* Actually display the various requested regions */
2258 bfd_size_type datasize = 0;
2259 bfd_size_type addr_offset;
2260 bfd_size_type start_offset, stop_offset;
2261 int opb = bfd_octets_per_byte (abfd);
2263 for (section = abfd->sections; section != NULL; section =
2268 if (only == (char *) NULL ||
2269 strcmp (only, section->name) == 0)
2271 if (section->flags & SEC_HAS_CONTENTS)
2273 printf (_("Contents of section %s:\n"), section->name);
2275 if (bfd_section_size (abfd, section) == 0)
2277 data = (bfd_byte *) xmalloc ((size_t) bfd_section_size (abfd, section));
2278 datasize = bfd_section_size (abfd, section);
2281 bfd_get_section_contents (abfd, section, (PTR) data, 0, bfd_section_size (abfd, section));
2283 if (start_address == (bfd_vma) -1
2284 || start_address < section->vma)
2287 start_offset = start_address - section->vma;
2288 if (stop_address == (bfd_vma) -1)
2289 stop_offset = bfd_section_size (abfd, section) / opb;
2292 if (stop_address < section->vma)
2295 stop_offset = stop_address - section->vma;
2296 if (stop_offset > bfd_section_size (abfd, section) / opb)
2297 stop_offset = bfd_section_size (abfd, section) / opb;
2299 for (addr_offset = start_offset;
2300 addr_offset < stop_offset; addr_offset += onaline)
2304 printf (" %04lx ", (unsigned long int)
2305 (addr_offset + section->vma));
2306 for (j = addr_offset * opb;
2307 j < addr_offset * opb + onaline; j++)
2309 if (j < stop_offset * opb)
2310 printf ("%02x", (unsigned) (data[j]));
2318 for (j = addr_offset; j < addr_offset * opb + onaline; j++)
2320 if (j >= stop_offset * opb)
2323 printf ("%c", isprint (data[j]) ? data[j] : '.');
2333 /* Should perhaps share code and display with nm? */
2335 dump_symbols (abfd, dynamic)
2336 bfd *abfd ATTRIBUTE_UNUSED;
2349 printf ("DYNAMIC SYMBOL TABLE:\n");
2357 printf ("SYMBOL TABLE:\n");
2360 for (count = 0; count < max; count++)
2364 bfd *cur_bfd = bfd_asymbol_bfd (*current);
2366 if (cur_bfd != NULL)
2371 name = bfd_asymbol_name (*current);
2373 if (do_demangle && name != NULL && *name != '\0')
2377 /* If we want to demangle the name, we demangle it
2378 here, and temporarily clobber it while calling
2379 bfd_print_symbol. FIXME: This is a gross hack. */
2382 if (bfd_get_symbol_leading_char (cur_bfd) == *n)
2384 alloc = cplus_demangle (n, DMGL_ANSI | DMGL_PARAMS);
2386 (*current)->name = alloc;
2388 (*current)->name = n;
2391 bfd_print_symbol (cur_bfd, stdout, *current,
2392 bfd_print_symbol_all);
2394 (*current)->name = name;
2415 for (a = abfd->sections; a != (asection *) NULL; a = a->next)
2419 if (bfd_is_abs_section (a))
2421 if (bfd_is_und_section (a))
2423 if (bfd_is_com_section (a))
2428 if (strcmp (only, a->name))
2431 else if ((a->flags & SEC_RELOC) == 0)
2434 relsize = bfd_get_reloc_upper_bound (abfd, a);
2436 bfd_fatal (bfd_get_filename (abfd));
2438 printf ("RELOCATION RECORDS FOR [%s]:", a->name);
2442 printf (" (none)\n\n");
2446 relpp = (arelent **) xmalloc (relsize);
2447 relcount = bfd_canonicalize_reloc (abfd, a, relpp, syms);
2449 bfd_fatal (bfd_get_filename (abfd));
2450 else if (relcount == 0)
2452 printf (" (none)\n\n");
2457 dump_reloc_set (abfd, a, relpp, relcount);
2466 dump_dynamic_relocs (abfd)
2473 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2475 bfd_fatal (bfd_get_filename (abfd));
2477 printf ("DYNAMIC RELOCATION RECORDS");
2481 printf (" (none)\n\n");
2485 relpp = (arelent **) xmalloc (relsize);
2486 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
2488 bfd_fatal (bfd_get_filename (abfd));
2489 else if (relcount == 0)
2491 printf (" (none)\n\n");
2496 dump_reloc_set (abfd, (asection *) NULL, relpp, relcount);
2504 dump_reloc_set (abfd, sec, relpp, relcount)
2511 char *last_filename, *last_functionname;
2512 unsigned int last_line;
2514 /* Get column headers lined up reasonably. */
2520 sprintf_vma (buf, (bfd_vma) -1);
2521 width = strlen (buf) - 7;
2523 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2526 last_filename = NULL;
2527 last_functionname = NULL;
2530 for (p = relpp; relcount && *p != (arelent *) NULL; p++, relcount--)
2533 const char *filename, *functionname;
2535 const char *sym_name;
2536 const char *section_name;
2538 if (start_address != (bfd_vma) -1
2539 && q->address < start_address)
2541 if (stop_address != (bfd_vma) -1
2542 && q->address > stop_address)
2545 if (with_line_numbers
2547 && bfd_find_nearest_line (abfd, sec, syms, q->address,
2548 &filename, &functionname, &line))
2550 if (functionname != NULL
2551 && (last_functionname == NULL
2552 || strcmp (functionname, last_functionname) != 0))
2554 printf ("%s():\n", functionname);
2555 if (last_functionname != NULL)
2556 free (last_functionname);
2557 last_functionname = xstrdup (functionname);
2560 && (line != last_line
2561 || (filename != NULL
2562 && last_filename != NULL
2563 && strcmp (filename, last_filename) != 0)))
2565 printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
2567 if (last_filename != NULL)
2568 free (last_filename);
2569 if (filename == NULL)
2570 last_filename = NULL;
2572 last_filename = xstrdup (filename);
2576 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2578 sym_name = (*(q->sym_ptr_ptr))->name;
2579 section_name = (*(q->sym_ptr_ptr))->section->name;
2584 section_name = NULL;
2588 printf_vma (q->address);
2590 printf (" %-16s ", q->howto->name);
2592 printf (" %-16d ", q->howto->type);
2593 objdump_print_symname (abfd, (struct disassemble_info *) NULL,
2598 if (section_name == (CONST char *) NULL)
2599 section_name = "*unknown*";
2600 printf_vma (q->address);
2601 printf (" %-16s [%s]",
2608 printf_vma (q->addend);
2614 /* The length of the longest architecture name + 1. */
2615 #define LONGEST_ARCH sizeof("rs6000:6000")
2618 endian_string (endian)
2619 enum bfd_endian endian;
2621 if (endian == BFD_ENDIAN_BIG)
2622 return "big endian";
2623 else if (endian == BFD_ENDIAN_LITTLE)
2624 return "little endian";
2626 return "endianness unknown";
2629 /* List the targets that BFD is configured to support, each followed
2630 by its endianness and the architectures it supports. */
2633 display_target_list ()
2635 extern bfd_target *bfd_target_vector[];
2639 dummy_name = choose_temp_base ();
2640 for (t = 0; bfd_target_vector[t]; t++)
2642 bfd_target *p = bfd_target_vector[t];
2643 bfd *abfd = bfd_openw (dummy_name, p->name);
2646 printf ("%s\n (header %s, data %s)\n", p->name,
2647 endian_string (p->header_byteorder),
2648 endian_string (p->byteorder));
2652 nonfatal (dummy_name);
2656 if (! bfd_set_format (abfd, bfd_object))
2658 if (bfd_get_error () != bfd_error_invalid_operation)
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));
2668 unlink (dummy_name);
2672 /* Print a table showing which architectures are supported for entries
2673 FIRST through LAST-1 of bfd_target_vector (targets across,
2674 architectures down). */
2677 display_info_table (first, last)
2681 extern bfd_target *bfd_target_vector[];
2685 /* Print heading of target names. */
2686 printf ("\n%*s", (int) LONGEST_ARCH, " ");
2687 for (t = first; t < last && bfd_target_vector[t]; t++)
2688 printf ("%s ", bfd_target_vector[t]->name);
2691 dummy_name = choose_temp_base ();
2692 for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
2693 if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0)
2695 printf ("%*s ", (int) LONGEST_ARCH - 1,
2696 bfd_printable_arch_mach (a, 0));
2697 for (t = first; t < last && bfd_target_vector[t]; t++)
2699 bfd_target *p = bfd_target_vector[t];
2701 bfd *abfd = bfd_openw (dummy_name, p->name);
2711 if (! bfd_set_format (abfd, bfd_object))
2713 if (bfd_get_error () != bfd_error_invalid_operation)
2721 if (! bfd_set_arch_mach (abfd, a, 0))
2726 printf ("%s ", p->name);
2729 int l = strlen (p->name);
2737 unlink (dummy_name);
2741 /* Print tables of all the target-architecture combinations that
2742 BFD has been configured to support. */
2745 display_target_tables ()
2748 extern bfd_target *bfd_target_vector[];
2752 colum = getenv ("COLUMNS");
2754 columns = atoi (colum);
2759 while (bfd_target_vector[t] != NULL)
2763 wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1;
2765 while (wid < columns && bfd_target_vector[t] != NULL)
2769 newwid = wid + strlen (bfd_target_vector[t]->name) + 1;
2770 if (newwid >= columns)
2775 display_info_table (oldt, t);
2782 printf (_("BFD header file version %s\n"), BFD_VERSION);
2783 display_target_list ();
2784 display_target_tables ();
2793 char *target = default_target;
2794 boolean seenflag = false;
2796 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
2797 setlocale (LC_MESSAGES, "");
2799 bindtextdomain (PACKAGE, LOCALEDIR);
2800 textdomain (PACKAGE);
2802 program_name = *argv;
2803 xmalloc_set_program_name (program_name);
2805 START_PROGRESS (program_name, 0);
2808 set_default_bfd_target ();
2810 while ((c = getopt_long (argc, argv, "pib:m:M:VCdDlfahHrRtTxsSj:wE:zgG",
2811 long_options, (int *) 0))
2817 break; /* we've been given a long option */
2822 disassembler_options = optarg;
2828 with_line_numbers = true;
2839 case OPTION_ADJUST_VMA:
2840 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
2842 case OPTION_START_ADDRESS:
2843 start_address = parse_vma (optarg, "--start-address");
2845 case OPTION_STOP_ADDRESS:
2846 stop_address = parse_vma (optarg, "--stop-address");
2849 if (strcmp (optarg, "B") == 0)
2850 endian = BFD_ENDIAN_BIG;
2851 else if (strcmp (optarg, "L") == 0)
2852 endian = BFD_ENDIAN_LITTLE;
2855 fprintf (stderr, _("%s: unrecognized -E option\n"),
2861 if (strncmp (optarg, "big", strlen (optarg)) == 0)
2862 endian = BFD_ENDIAN_BIG;
2863 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
2864 endian = BFD_ENDIAN_LITTLE;
2867 fprintf (stderr, _("%s: unrecognized --endian type `%s'\n"),
2868 program_name, optarg);
2874 dump_file_header = true;
2878 formats_info = true;
2882 dump_private_headers = true;
2886 dump_private_headers = true;
2888 dump_reloc_info = true;
2889 dump_file_header = true;
2890 dump_ar_hdrs = true;
2891 dump_section_headers = true;
2899 dump_dynamic_symtab = true;
2907 disassemble_zeroes = true;
2911 disassemble_all = true;
2916 with_source_code = true;
2924 dump_stab_section_info = true;
2928 dump_section_contents = true;
2932 dump_reloc_info = true;
2936 dump_dynamic_reloc_info = true;
2940 dump_ar_hdrs = true;
2944 dump_section_headers = true;
2951 show_version = true;
2961 print_version ("objdump");
2963 if (seenflag == false)
2971 display_file ("a.out", target);
2973 for (; optind < argc;)
2974 display_file (argv[optind++], target);
2977 END_PROGRESS (program_name);