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[binutils.git] / binutils / objdump.c
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1 /* objdump.c -- dump information about an object file.
2 Copyright 1990, 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)
10 any later version.
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. */
21 #include "bfd.h"
22 #include "getopt.h"
23 #include "progress.h"
24 #include "bucomm.h"
25 #include <ctype.h>
26 #include "dis-asm.h"
27 #include "libiberty.h"
28 #include "demangle.h"
29 #include "debug.h"
30 #include "budbg.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 *, ...));
39 #endif
41 /* Exit status. */
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 {
76 bfd *abfd;
77 asection *sec;
78 boolean require_sec;
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. */
110 static void
111 usage PARAMS ((FILE *, int));
113 static void
114 nonfatal PARAMS ((const char *));
116 static void
117 display_file PARAMS ((char *filename, char *target));
119 static void
120 dump_section_header PARAMS ((bfd *, asection *, PTR));
122 static void
123 dump_headers PARAMS ((bfd *));
125 static void
126 dump_data PARAMS ((bfd *abfd));
128 static void
129 dump_relocs PARAMS ((bfd *abfd));
131 static void
132 dump_dynamic_relocs PARAMS ((bfd * abfd));
134 static void
135 dump_reloc_set PARAMS ((bfd *, asection *, arelent **, long));
137 static void
138 dump_symbols PARAMS ((bfd *abfd, boolean dynamic));
140 static void
141 dump_bfd_header PARAMS ((bfd *));
143 static void
144 dump_bfd_private_header PARAMS ((bfd *));
146 static void
147 display_bfd PARAMS ((bfd *abfd));
149 static void
150 display_target_list PARAMS ((void));
152 static void
153 display_info_table PARAMS ((int, int));
155 static void
156 display_target_tables PARAMS ((void));
158 static void
159 display_info PARAMS ((void));
161 static void
162 objdump_print_value PARAMS ((bfd_vma, struct disassemble_info *, boolean));
164 static void
165 objdump_print_symname PARAMS ((bfd *, struct disassemble_info *, asymbol *));
167 static asymbol *
168 find_symbol_for_address PARAMS ((bfd *, asection *, bfd_vma, boolean, long *));
170 static void
171 objdump_print_addr_with_sym PARAMS ((bfd *, asection *, asymbol *, bfd_vma,
172 struct disassemble_info *, boolean));
174 static void
175 objdump_print_addr PARAMS ((bfd_vma, struct disassemble_info *, boolean));
177 static void
178 objdump_print_address PARAMS ((bfd_vma, struct disassemble_info *));
180 static void
181 show_line PARAMS ((bfd *, asection *, bfd_vma));
183 static void
184 disassemble_bytes PARAMS ((struct disassemble_info *, disassembler_ftype,
185 boolean, bfd_byte *, bfd_vma, bfd_vma,
186 arelent ***, arelent **));
188 static void
189 disassemble_data PARAMS ((bfd *));
191 static const char *
192 endian_string PARAMS ((enum bfd_endian));
194 static asymbol **
195 slurp_symtab PARAMS ((bfd *));
197 static asymbol **
198 slurp_dynamic_symtab PARAMS ((bfd *));
200 static long
201 remove_useless_symbols PARAMS ((asymbol **, long));
203 static int
204 compare_symbols PARAMS ((const PTR, const PTR));
206 static int
207 compare_relocs PARAMS ((const PTR, const PTR));
209 static void
210 dump_stabs PARAMS ((bfd *));
212 static boolean
213 read_section_stabs PARAMS ((bfd *, const char *, const char *));
215 static void
216 print_section_stabs PARAMS ((bfd *, const char *, const char *));
218 static void
219 usage (stream, status)
220 FILE *stream;
221 int 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\
245 "));
246 if (status != 2)
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\
268 \n"));
269 list_supported_targets (program_name, stream);
271 disassembler_usage (stream);
273 if (status == 0)
274 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
275 exit (status);
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}
325 static void
326 nonfatal (msg)
327 const char *msg;
329 bfd_nonfatal (msg);
330 exit_status = 1;
333 static void
334 dump_section_header (abfd, section, ignored)
335 bfd *abfd ATTRIBUTE_UNUSED;
336 asection *section;
337 PTR ignored ATTRIBUTE_UNUSED;
339 char *comma = "";
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));
346 printf (" ");
347 printf_vma (section->lma);
348 printf (" %08lx 2**%u", section->filepos,
349 bfd_get_section_alignment (abfd, section));
350 if (! wide_output)
351 printf ("\n ");
352 printf (" ");
354 #define PF(x, y) \
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");
365 #ifdef SEC_BALIGN
366 PF (SEC_BALIGN, "BALIGN");
367 #endif
368 PF (SEC_READONLY, "READONLY");
369 PF (SEC_CODE, "CODE");
370 PF (SEC_DATA, "DATA");
371 PF (SEC_ROM, "ROM");
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)
383 const char *ls;
385 switch (section->flags & SEC_LINK_DUPLICATES)
387 default:
388 abort ();
389 case SEC_LINK_DUPLICATES_DISCARD:
390 ls = "LINK_ONCE_DISCARD";
391 break;
392 case SEC_LINK_DUPLICATES_ONE_ONLY:
393 ls = "LINK_ONCE_ONE_ONLY";
394 break;
395 case SEC_LINK_DUPLICATES_SAME_SIZE:
396 ls = "LINK_ONCE_SAME_SIZE";
397 break;
398 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
399 ls = "LINK_ONCE_SAME_CONTENTS";
400 break;
402 printf ("%s%s", comma, ls);
404 if (section->comdat != NULL)
405 printf (" (COMDAT %s %ld)", section->comdat->name,
406 section->comdat->symbol);
408 comma = ", ";
411 printf ("\n");
412 #undef PF
415 static void
416 dump_headers (abfd)
417 bfd *abfd;
419 printf (_("Sections:\n"));
421 #ifndef BFD64
422 printf (_("Idx Name Size VMA LMA File off Algn"));
423 #else
424 printf (_("Idx Name Size VMA LMA File off Algn"));
425 #endif
427 if (wide_output)
428 printf (_(" Flags"));
429 printf ("\n");
431 bfd_map_over_sections (abfd, dump_section_header, (PTR) NULL);
434 static asymbol **
435 slurp_symtab (abfd)
436 bfd *abfd;
438 asymbol **sy = (asymbol **) NULL;
439 long storage;
441 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
443 non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
444 symcount = 0;
445 return NULL;
448 storage = bfd_get_symtab_upper_bound (abfd);
449 if (storage < 0)
450 bfd_fatal (bfd_get_filename (abfd));
452 if (storage)
454 sy = (asymbol **) xmalloc (storage);
456 symcount = bfd_canonicalize_symtab (abfd, sy);
457 if (symcount < 0)
458 bfd_fatal (bfd_get_filename (abfd));
459 if (symcount == 0)
460 non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
461 return sy;
464 /* Read in the dynamic symbols. */
466 static asymbol **
467 slurp_dynamic_symtab (abfd)
468 bfd *abfd;
470 asymbol **sy = (asymbol **) NULL;
471 long storage;
473 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
474 if (storage < 0)
476 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
478 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
479 dynsymcount = 0;
480 return NULL;
483 bfd_fatal (bfd_get_filename (abfd));
486 if (storage)
488 sy = (asymbol **) xmalloc (storage);
490 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
491 if (dynsymcount < 0)
492 bfd_fatal (bfd_get_filename (abfd));
493 if (dynsymcount == 0)
494 non_fatal (_("%s: No dynamic symbols"), bfd_get_filename (abfd));
495 return sy;
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. */
502 static long
503 remove_useless_symbols (symbols, count)
504 asymbol **symbols;
505 long count;
507 register asymbol **in_ptr = symbols, **out_ptr = symbols;
509 while (--count >= 0)
511 asymbol *sym = *in_ptr++;
513 if (sym->name == NULL || sym->name[0] == '\0')
514 continue;
515 if (sym->flags & (BSF_DEBUGGING))
516 continue;
517 if (bfd_is_und_section (sym->section)
518 || bfd_is_com_section (sym->section))
519 continue;
521 *out_ptr++ = sym;
523 return out_ptr - symbols;
526 /* Sort symbols into value order. */
528 static int
529 compare_symbols (ap, bp)
530 const PTR ap;
531 const PTR bp;
533 const asymbol *a = *(const asymbol **)ap;
534 const asymbol *b = *(const asymbol **)bp;
535 const char *an, *bn;
536 size_t anl, bnl;
537 boolean af, bf;
538 flagword aflags, bflags;
540 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
541 return 1;
542 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
543 return -1;
545 if (a->section > b->section)
546 return 1;
547 else if (a->section < b->section)
548 return -1;
550 an = bfd_asymbol_name (a);
551 bn = bfd_asymbol_name (b);
552 anl = strlen (an);
553 bnl = strlen (bn);
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);
563 if (af && ! bf)
564 return 1;
565 if (! af && bf)
566 return -1;
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);
582 if (af && ! bf)
583 return 1;
584 if (! af && bf)
585 return -1;
587 /* Try to sort global symbols before local symbols before function
588 symbols before debugging symbols. */
590 aflags = a->flags;
591 bflags = b->flags;
593 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
595 if ((aflags & BSF_DEBUGGING) != 0)
596 return 1;
597 else
598 return -1;
600 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
602 if ((aflags & BSF_FUNCTION) != 0)
603 return -1;
604 else
605 return 1;
607 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
609 if ((aflags & BSF_LOCAL) != 0)
610 return 1;
611 else
612 return -1;
614 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
616 if ((aflags & BSF_GLOBAL) != 0)
617 return -1;
618 else
619 return 1;
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] != '.')
625 return 1;
626 if (an[0] != '.' && bn[0] == '.')
627 return -1;
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. */
636 static int
637 compare_relocs (ap, bp)
638 const PTR ap;
639 const PTR bp;
641 const arelent *a = *(const arelent **)ap;
642 const arelent *b = *(const arelent **)bp;
644 if (a->address > b->address)
645 return 1;
646 else if (a->address < b->address)
647 return -1;
649 /* So that associated relocations tied to the same address show up
650 in the correct order, we don't do any further sorting. */
651 if (a > b)
652 return 1;
653 else if (a < b)
654 return -1;
655 else
656 return 0;
659 /* Print VMA to STREAM. If SKIP_ZEROES is true, omit leading zeroes. */
661 static void
662 objdump_print_value (vma, info, skip_zeroes)
663 bfd_vma vma;
664 struct disassemble_info *info;
665 boolean skip_zeroes;
667 char buf[30];
668 char *p;
670 sprintf_vma (buf, vma);
671 if (! skip_zeroes)
672 p = buf;
673 else
675 for (p = buf; *p == '0'; ++p)
677 if (*p == '\0')
678 --p;
680 (*info->fprintf_func) (info->stream, "%s", p);
683 /* Print the name of a symbol. */
685 static void
686 objdump_print_symname (abfd, info, sym)
687 bfd *abfd;
688 struct disassemble_info *info;
689 asymbol *sym;
691 char *alloc;
692 const char *name;
693 const char *print;
695 alloc = NULL;
696 name = bfd_asymbol_name (sym);
697 if (! do_demangle || name[0] == '\0')
698 print = name;
699 else
701 /* Demangle the name. */
702 if (bfd_get_symbol_leading_char (abfd) == name[0])
703 ++name;
705 alloc = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS);
706 if (alloc == NULL)
707 print = name;
708 else
709 print = alloc;
712 if (info != NULL)
713 (*info->fprintf_func) (info->stream, "%s", print);
714 else
715 printf ("%s", print);
717 if (alloc != NULL)
718 free (alloc);
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. */
726 static asymbol *
727 find_symbol_for_address (abfd, sec, vma, require_sec, place)
728 bfd *abfd;
729 asection *sec;
730 bfd_vma vma;
731 boolean require_sec;
732 long *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'. */
740 long min = 0;
741 long max = sorted_symcount;
742 long thisplace;
743 unsigned int opb = bfd_octets_per_byte (abfd);
745 if (sorted_symcount < 1)
746 return NULL;
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)
752 asymbol *sym;
754 thisplace = (max + min) / 2;
755 sym = sorted_syms[thisplace];
757 if (bfd_asymbol_value (sym) > vma)
758 max = thisplace;
759 else if (bfd_asymbol_value (sym) < vma)
760 min = thisplace;
761 else
763 min = thisplace;
764 break;
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. */
771 thisplace = min;
772 while (thisplace > 0
773 && (bfd_asymbol_value (sorted_syms[thisplace])
774 == bfd_asymbol_value (sorted_syms[thisplace - 1])))
775 --thisplace;
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
784 table. */
786 if (sorted_syms[thisplace]->section != sec
787 && (require_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))))
793 long i;
795 for (i = thisplace + 1; i < sorted_symcount; i++)
797 if (bfd_asymbol_value (sorted_syms[i])
798 != bfd_asymbol_value (sorted_syms[thisplace]))
799 break;
801 --i;
802 for (; i >= 0; i--)
804 if (sorted_syms[i]->section == sec
805 && (i == 0
806 || sorted_syms[i - 1]->section != sec
807 || (bfd_asymbol_value (sorted_syms[i])
808 != bfd_asymbol_value (sorted_syms[i - 1]))))
810 thisplace = i;
811 break;
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)
823 thisplace = i;
824 break;
829 if (sorted_syms[thisplace]->section != sec
830 && (require_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. */
837 return NULL;
841 if (place != NULL)
842 *place = thisplace;
844 return sorted_syms[thisplace];
847 /* Print an address to INFO symbolically. */
849 static void
850 objdump_print_addr_with_sym (abfd, sec, sym, vma, info, skip_zeroes)
851 bfd *abfd;
852 asection *sec;
853 asymbol *sym;
854 bfd_vma vma;
855 struct disassemble_info *info;
856 boolean skip_zeroes;
858 objdump_print_value (vma, info, skip_zeroes);
860 if (sym == NULL)
862 bfd_vma secaddr;
864 (*info->fprintf_func) (info->stream, " <%s",
865 bfd_get_section_name (abfd, sec));
866 secaddr = bfd_get_section_vma (abfd, sec);
867 if (vma < secaddr)
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, ">");
879 else
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. */
900 static void
901 objdump_print_addr (vma, info, skip_zeroes)
902 bfd_vma vma;
903 struct disassemble_info *info;
904 boolean skip_zeroes;
906 struct objdump_disasm_info *aux;
907 asymbol *sym;
909 if (sorted_symcount < 1)
911 (*info->fprintf_func) (info->stream, "0x");
912 objdump_print_value (vma, info, skip_zeroes);
913 return;
916 aux = (struct objdump_disasm_info *) info->application_data;
917 sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
918 (long *) NULL);
919 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
920 skip_zeroes);
923 /* Print VMA to INFO. This function is passed to the disassembler
924 routine. */
926 static void
927 objdump_print_address (vma, info)
928 bfd_vma vma;
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. */
936 static int
937 objdump_symbol_at_address (vma, info)
938 bfd_vma vma;
939 struct disassemble_info * info;
941 struct objdump_disasm_info * aux;
942 asymbol * sym;
944 /* No symbols - do not bother checking. */
945 if (sorted_symcount < 1)
946 return 0;
948 aux = (struct objdump_disasm_info *) info->application_data;
949 sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
950 (long *) NULL);
952 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
955 /* Hold the last function name and the last line number we displayed
956 in a disassembly. */
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;
968 char *filename;
969 unsigned int line;
970 FILE *f;
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
981 line. */
983 static void
984 skip_to_line PARAMS ((struct print_file_list *, unsigned int, boolean));
986 static void
987 skip_to_line (p, line, show)
988 struct print_file_list *p;
989 unsigned int line;
990 boolean show;
992 while (p->line < line)
994 char buf[100];
996 if (fgets (buf, sizeof buf, p->f) == NULL)
998 fclose (p->f);
999 p->f = NULL;
1000 break;
1003 if (show)
1004 printf ("%s", buf);
1006 if (strchr (buf, '\n') != NULL)
1007 ++p->line;
1011 /* Show the line number, or the source line, in a dissassembly
1012 listing. */
1014 static void
1015 show_line (abfd, section, addr_offset)
1016 bfd *abfd;
1017 asection *section;
1018 bfd_vma addr_offset;
1020 CONST char *filename;
1021 CONST char *functionname;
1022 unsigned int line;
1024 if (! with_line_numbers && ! with_source_code)
1025 return;
1027 if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
1028 &functionname, &line))
1029 return;
1031 if (filename != NULL && *filename == '\0')
1032 filename = NULL;
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
1047 && filename != NULL
1048 && line > 0)
1050 struct print_file_list **pp, *p;
1052 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1053 if (strcmp ((*pp)->filename, filename) == 0)
1054 break;
1055 p = *pp;
1057 if (p != NULL)
1059 if (p != print_files)
1061 int l;
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)
1075 l = p->line;
1076 else
1078 l = line - SHOW_PRECEDING_CONTEXT_LINES;
1079 if (l < 0)
1080 l = 0;
1083 if (p->f == NULL)
1085 p->f = fopen (p->filename, "r");
1086 p->line = 0;
1088 if (p->f != NULL)
1089 skip_to_line (p, l, false);
1091 if (print_files->f != NULL)
1093 fclose (print_files->f);
1094 print_files->f = NULL;
1098 if (p->f != NULL)
1100 skip_to_line (p, line, true);
1101 *pp = p->next;
1102 p->next = print_files;
1103 print_files = p;
1106 else
1108 FILE *f;
1110 f = fopen (filename, "r");
1111 if (f != NULL)
1113 int l;
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);
1119 p->line = 0;
1120 p->f = f;
1122 if (print_files != NULL && print_files->f != NULL)
1124 fclose (print_files->f);
1125 print_files->f = NULL;
1127 p->next = print_files;
1128 print_files = p;
1130 if (file_start_context)
1131 l = 0;
1132 else
1133 l = line - SHOW_PRECEDING_CONTEXT_LINES;
1134 if (l < 0)
1135 l = 0;
1136 skip_to_line (p, l, false);
1137 if (p->f != NULL)
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)
1154 prev_line = line;
1157 /* Pseudo FILE object for strings. */
1158 typedef struct
1160 char *buffer;
1161 size_t size;
1162 char *current;
1163 } SFILE;
1165 /* sprintf to a "stream" */
1167 static int
1168 #ifdef ANSI_PROTOTYPES
1169 objdump_sprintf (SFILE *f, const char *format, ...)
1170 #else
1171 objdump_sprintf (va_alist)
1172 va_dcl
1173 #endif
1175 #ifndef ANSI_PROTOTYPES
1176 SFILE *f;
1177 const char *format;
1178 #endif
1179 char *buf;
1180 va_list args;
1181 size_t n;
1183 #ifdef ANSI_PROTOTYPES
1184 va_start (args, format);
1185 #else
1186 va_start (args);
1187 f = va_arg (args, SFILE *);
1188 format = va_arg (args, const char *);
1189 #endif
1191 vasprintf (&buf, format, args);
1193 va_end (args);
1195 if (buf == NULL)
1197 fatal (_("Out of virtual memory"));
1200 n = strlen (buf);
1202 while ((size_t) ((f->buffer + f->size) - f->current) < n + 1)
1204 size_t curroff;
1206 curroff = f->current - f->buffer;
1207 f->size *= 2;
1208 f->buffer = xrealloc (f->buffer, f->size);
1209 f->current = f->buffer + curroff;
1212 memcpy (f->current, buf, n);
1213 f->current += n;
1214 f->current[0] = '\0';
1216 free (buf);
1218 return n;
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
1231 alignment. */
1233 #define SKIP_ZEROES_AT_END (3)
1235 /* Disassemble some data in memory between given values. */
1237 static void
1238 disassemble_bytes (info, disassemble_fn, insns, data,
1239 start_offset, stop_offset, relppp,
1240 relppend)
1241 struct disassemble_info *info;
1242 disassembler_ftype disassemble_fn;
1243 boolean insns;
1244 bfd_byte *data;
1245 bfd_vma start_offset;
1246 bfd_vma stop_offset;
1247 arelent ***relppp;
1248 arelent **relppend;
1250 struct objdump_disasm_info *aux;
1251 asection *section;
1252 int octets_per_line;
1253 boolean done_dot;
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;
1259 section = aux->sec;
1261 if (insns)
1262 octets_per_line = 4;
1263 else
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
1269 zero remaining. */
1270 skip_addr_chars = 0;
1271 if (! prefix_addresses)
1273 char buf[30];
1274 char *s;
1276 sprintf_vma (buf, section->vma +
1277 bfd_section_size (section->owner, section) / opb);
1278 s = buf;
1279 while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0'
1280 && s[4] == '0')
1282 skip_addr_chars += 4;
1283 s += 4;
1287 info->insn_info_valid = 0;
1289 done_dot = false;
1290 addr_offset = start_offset;
1291 while (addr_offset < stop_offset)
1293 bfd_vma z;
1294 int octets = 0;
1295 boolean need_nl = false;
1297 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1298 print `...'. */
1299 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1300 if (data[z] != 0)
1301 break;
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)))
1309 printf ("\t...\n");
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
1314 zero. */
1315 if (z != stop_offset * opb)
1316 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1318 octets = z - addr_offset * opb;
1320 else
1322 char buf[50];
1323 SFILE sfile;
1324 int bpc = 0;
1325 int pb = 0;
1327 done_dot = false;
1329 if (with_line_numbers || with_source_code)
1330 show_line (aux->abfd, section, addr_offset);
1332 if (! prefix_addresses)
1334 char *s;
1336 sprintf_vma (buf, section->vma + addr_offset);
1337 for (s = buf + skip_addr_chars; *s == '0'; s++)
1338 *s = ' ';
1339 if (*s == '\0')
1340 *--s = '0';
1341 printf ("%s:\t", buf + skip_addr_chars);
1343 else
1345 aux->require_sec = true;
1346 objdump_print_address (section->vma + addr_offset, info);
1347 aux->require_sec = false;
1348 putchar (' ');
1351 if (insns)
1353 sfile.size = 120;
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 #ifdef DISASSEMBLER_NEEDS_RELOCS
1362 /* FIXME: This is wrong. It tests the number of octets
1363 in the last instruction, not the current one. */
1364 if (*relppp < relppend
1365 && (**relppp)->address >= addr_offset
1366 && (**relppp)->address <= addr_offset + octets / opb)
1367 info->flags = INSN_HAS_RELOC;
1368 else
1369 #endif
1370 info->flags = 0;
1372 octets = (*disassemble_fn) (section->vma + addr_offset, info);
1373 info->fprintf_func = (fprintf_ftype) fprintf;
1374 info->stream = stdout;
1375 if (info->bytes_per_line != 0)
1376 octets_per_line = info->bytes_per_line;
1377 if (octets < 0)
1379 if (sfile.current != sfile.buffer)
1380 printf ("%s\n", sfile.buffer);
1381 free (sfile.buffer);
1382 break;
1385 else
1387 bfd_vma j;
1389 octets = octets_per_line;
1390 if (addr_offset + octets / opb > stop_offset)
1391 octets = (stop_offset - addr_offset) * opb;
1393 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1395 if (isprint (data[j]))
1396 buf[j - addr_offset * opb] = data[j];
1397 else
1398 buf[j - addr_offset * opb] = '.';
1400 buf[j - addr_offset * opb] = '\0';
1403 if (prefix_addresses
1404 ? show_raw_insn > 0
1405 : show_raw_insn >= 0)
1407 bfd_vma j;
1409 /* If ! prefix_addresses and ! wide_output, we print
1410 octets_per_line octets per line. */
1411 pb = octets;
1412 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1413 pb = octets_per_line;
1415 if (info->bytes_per_chunk)
1416 bpc = info->bytes_per_chunk;
1417 else
1418 bpc = 1;
1420 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1422 int k;
1423 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1425 for (k = bpc - 1; k >= 0; k--)
1426 printf ("%02x", (unsigned) data[j + k]);
1427 putchar (' ');
1429 else
1431 for (k = 0; k < bpc; k++)
1432 printf ("%02x", (unsigned) data[j + k]);
1433 putchar (' ');
1437 for (; pb < octets_per_line; pb += bpc)
1439 int k;
1441 for (k = 0; k < bpc; k++)
1442 printf (" ");
1443 putchar (' ');
1446 /* Separate raw data from instruction by extra space. */
1447 if (insns)
1448 putchar ('\t');
1449 else
1450 printf (" ");
1453 if (! insns)
1454 printf ("%s", buf);
1455 else
1457 printf ("%s", sfile.buffer);
1458 free (sfile.buffer);
1461 if (prefix_addresses
1462 ? show_raw_insn > 0
1463 : show_raw_insn >= 0)
1465 while (pb < octets)
1467 bfd_vma j;
1468 char *s;
1470 putchar ('\n');
1471 j = addr_offset * opb + pb;
1473 sprintf_vma (buf, section->vma + j / opb);
1474 for (s = buf + skip_addr_chars; *s == '0'; s++)
1475 *s = ' ';
1476 if (*s == '\0')
1477 *--s = '0';
1478 printf ("%s:\t", buf + skip_addr_chars);
1480 pb += octets_per_line;
1481 if (pb > octets)
1482 pb = octets;
1483 for (; j < addr_offset * opb + pb; j += bpc)
1485 int k;
1487 if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
1489 for (k = bpc - 1; k >= 0; k--)
1490 printf ("%02x", (unsigned) data[j + k]);
1491 putchar (' ');
1493 else
1495 for (k = 0; k < bpc; k++)
1496 printf ("%02x", (unsigned) data[j + k]);
1497 putchar (' ');
1503 if (!wide_output)
1504 putchar ('\n');
1505 else
1506 need_nl = true;
1509 if ((section->flags & SEC_RELOC) != 0
1510 #ifndef DISASSEMBLER_NEEDS_RELOCS
1511 && dump_reloc_info
1512 #endif
1515 while ((*relppp) < relppend
1516 && ((**relppp)->address >= (bfd_vma) addr_offset
1517 && (**relppp)->address < (bfd_vma) addr_offset + octets / opb))
1518 #ifdef DISASSEMBLER_NEEDS_RELOCS
1519 if (! dump_reloc_info)
1520 ++(*relppp);
1521 else
1522 #endif
1524 arelent *q;
1526 q = **relppp;
1528 if (wide_output)
1529 putchar ('\t');
1530 else
1531 printf ("\t\t\t");
1533 objdump_print_value (section->vma + q->address, info, true);
1535 printf (": %s\t", q->howto->name);
1537 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1538 printf ("*unknown*");
1539 else
1541 const char *sym_name;
1543 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1544 if (sym_name != NULL && *sym_name != '\0')
1545 objdump_print_symname (aux->abfd, info, *q->sym_ptr_ptr);
1546 else
1548 asection *sym_sec;
1550 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1551 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1552 if (sym_name == NULL || *sym_name == '\0')
1553 sym_name = "*unknown*";
1554 printf ("%s", sym_name);
1558 if (q->addend)
1560 printf ("+0x");
1561 objdump_print_value (q->addend, info, true);
1564 printf ("\n");
1565 need_nl = false;
1566 ++(*relppp);
1570 if (need_nl)
1571 printf ("\n");
1573 addr_offset += octets / opb;
1577 /* Disassemble the contents of an object file. */
1579 static void
1580 disassemble_data (abfd)
1581 bfd *abfd;
1583 unsigned long addr_offset;
1584 disassembler_ftype disassemble_fn;
1585 struct disassemble_info disasm_info;
1586 struct objdump_disasm_info aux;
1587 asection *section;
1588 unsigned int opb;
1590 print_files = NULL;
1591 prev_functionname = NULL;
1592 prev_line = -1;
1594 /* We make a copy of syms to sort. We don't want to sort syms
1595 because that will screw up the relocs. */
1596 sorted_syms = (asymbol **) xmalloc (symcount * sizeof (asymbol *));
1597 memcpy (sorted_syms, syms, symcount * sizeof (asymbol *));
1599 sorted_symcount = remove_useless_symbols (sorted_syms, symcount);
1601 /* Sort the symbols into section and symbol order */
1602 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
1604 INIT_DISASSEMBLE_INFO(disasm_info, stdout, fprintf);
1605 disasm_info.application_data = (PTR) &aux;
1606 aux.abfd = abfd;
1607 aux.require_sec = false;
1608 disasm_info.print_address_func = objdump_print_address;
1609 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
1611 if (machine != (char *) NULL)
1613 const bfd_arch_info_type *info = bfd_scan_arch (machine);
1614 if (info == NULL)
1616 fatal (_("Can't use supplied machine %s"), machine);
1618 abfd->arch_info = info;
1621 if (endian != BFD_ENDIAN_UNKNOWN)
1623 struct bfd_target *xvec;
1625 xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
1626 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
1627 xvec->byteorder = endian;
1628 abfd->xvec = xvec;
1631 disassemble_fn = disassembler (abfd);
1632 if (!disassemble_fn)
1634 non_fatal (_("Can't disassemble for architecture %s\n"),
1635 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
1636 exit_status = 1;
1637 return;
1640 opb = bfd_octets_per_byte (abfd);
1642 disasm_info.flavour = bfd_get_flavour (abfd);
1643 disasm_info.arch = bfd_get_arch (abfd);
1644 disasm_info.mach = bfd_get_mach (abfd);
1645 disasm_info.disassembler_options = disassembler_options;
1646 disasm_info.octets_per_byte = opb;
1648 if (bfd_big_endian (abfd))
1649 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
1650 else if (bfd_little_endian (abfd))
1651 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
1652 else
1653 /* ??? Aborting here seems too drastic. We could default to big or little
1654 instead. */
1655 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
1657 for (section = abfd->sections;
1658 section != (asection *) NULL;
1659 section = section->next)
1661 bfd_byte *data = NULL;
1662 bfd_size_type datasize = 0;
1663 arelent **relbuf = NULL;
1664 arelent **relpp = NULL;
1665 arelent **relppend = NULL;
1666 unsigned long stop_offset;
1667 asymbol *sym = NULL;
1668 long place = 0;
1670 if ((section->flags & SEC_LOAD) == 0
1671 || (! disassemble_all
1672 && only == NULL
1673 && (section->flags & SEC_CODE) == 0))
1674 continue;
1675 if (only != (char *) NULL && strcmp (only, section->name) != 0)
1676 continue;
1678 if ((section->flags & SEC_RELOC) != 0
1679 #ifndef DISASSEMBLER_NEEDS_RELOCS
1680 && dump_reloc_info
1681 #endif
1684 long relsize;
1686 relsize = bfd_get_reloc_upper_bound (abfd, section);
1687 if (relsize < 0)
1688 bfd_fatal (bfd_get_filename (abfd));
1690 if (relsize > 0)
1692 long relcount;
1694 relbuf = (arelent **) xmalloc (relsize);
1695 relcount = bfd_canonicalize_reloc (abfd, section, relbuf, syms);
1696 if (relcount < 0)
1697 bfd_fatal (bfd_get_filename (abfd));
1699 /* Sort the relocs by address. */
1700 qsort (relbuf, relcount, sizeof (arelent *), compare_relocs);
1702 relpp = relbuf;
1703 relppend = relpp + relcount;
1705 /* Skip over the relocs belonging to addresses below the
1706 start address. */
1707 if (start_address != (bfd_vma) -1)
1709 while (relpp < relppend
1710 && (*relpp)->address < start_address)
1711 ++relpp;
1716 printf (_("Disassembly of section %s:\n"), section->name);
1718 datasize = bfd_get_section_size_before_reloc (section);
1719 if (datasize == 0)
1720 continue;
1722 data = (bfd_byte *) xmalloc ((size_t) datasize);
1724 bfd_get_section_contents (abfd, section, data, 0, datasize);
1726 aux.sec = section;
1727 disasm_info.buffer = data;
1728 disasm_info.buffer_vma = section->vma;
1729 disasm_info.buffer_length = datasize;
1730 if (start_address == (bfd_vma) -1
1731 || start_address < disasm_info.buffer_vma)
1732 addr_offset = 0;
1733 else
1734 addr_offset = start_address - disasm_info.buffer_vma;
1735 if (stop_address == (bfd_vma) -1)
1736 stop_offset = datasize / opb;
1737 else
1739 if (stop_address < disasm_info.buffer_vma)
1740 stop_offset = 0;
1741 else
1742 stop_offset = stop_address - disasm_info.buffer_vma;
1743 if (stop_offset > disasm_info.buffer_length / opb)
1744 stop_offset = disasm_info.buffer_length / opb;
1747 sym = find_symbol_for_address (abfd, section, section->vma + addr_offset,
1748 true, &place);
1750 while (addr_offset < stop_offset)
1752 asymbol *nextsym;
1753 unsigned long nextstop_offset;
1754 boolean insns;
1756 if (sym != NULL && bfd_asymbol_value (sym) <= section->vma + addr_offset)
1758 int x;
1760 for (x = place;
1761 (x < sorted_symcount
1762 && bfd_asymbol_value (sorted_syms[x]) <= section->vma + addr_offset);
1763 ++x)
1764 continue;
1765 disasm_info.symbols = & sorted_syms[place];
1766 disasm_info.num_symbols = x - place;
1768 else
1769 disasm_info.symbols = NULL;
1771 if (! prefix_addresses)
1773 printf ("\n");
1774 objdump_print_addr_with_sym (abfd, section, sym,
1775 section->vma + addr_offset,
1776 &disasm_info,
1777 false);
1778 printf (":\n");
1781 if (sym != NULL && bfd_asymbol_value (sym) > section->vma + addr_offset)
1782 nextsym = sym;
1783 else if (sym == NULL)
1784 nextsym = NULL;
1785 else
1787 /* Search forward for the next appropriate symbol in
1788 SECTION. Note that all the symbols are sorted
1789 together into one big array, and that some sections
1790 may have overlapping addresses. */
1791 while (place < sorted_symcount
1792 && (sorted_syms[place]->section != section
1793 || (bfd_asymbol_value (sorted_syms[place])
1794 <= bfd_asymbol_value (sym))))
1795 ++place;
1796 if (place >= sorted_symcount)
1797 nextsym = NULL;
1798 else
1799 nextsym = sorted_syms[place];
1802 if (sym != NULL && bfd_asymbol_value (sym) > section->vma + addr_offset)
1804 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
1805 if (nextstop_offset > stop_offset)
1806 nextstop_offset = stop_offset;
1808 else if (nextsym == NULL)
1809 nextstop_offset = stop_offset;
1810 else
1812 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
1813 if (nextstop_offset > stop_offset)
1814 nextstop_offset = stop_offset;
1817 /* If a symbol is explicitly marked as being an object
1818 rather than a function, just dump the bytes without
1819 disassembling them. */
1820 if (disassemble_all
1821 || sym == NULL
1822 || bfd_asymbol_value (sym) > section->vma + addr_offset
1823 || ((sym->flags & BSF_OBJECT) == 0
1824 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
1825 == NULL)
1826 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
1827 == NULL))
1828 || (sym->flags & BSF_FUNCTION) != 0)
1829 insns = true;
1830 else
1831 insns = false;
1833 disassemble_bytes (&disasm_info, disassemble_fn, insns, data,
1834 addr_offset, nextstop_offset, &relpp, relppend);
1836 addr_offset = nextstop_offset;
1837 sym = nextsym;
1840 free (data);
1841 if (relbuf != NULL)
1842 free (relbuf);
1844 free (sorted_syms);
1848 /* Define a table of stab values and print-strings. We wish the initializer
1849 could be a direct-mapped table, but instead we build one the first
1850 time we need it. */
1852 static void dump_section_stabs PARAMS ((bfd *abfd, char *stabsect_name,
1853 char *strsect_name));
1855 /* Dump the stabs sections from an object file that has a section that
1856 uses Sun stabs encoding. */
1858 static void
1859 dump_stabs (abfd)
1860 bfd *abfd;
1862 dump_section_stabs (abfd, ".stab", ".stabstr");
1863 dump_section_stabs (abfd, ".stab.excl", ".stab.exclstr");
1864 dump_section_stabs (abfd, ".stab.index", ".stab.indexstr");
1865 dump_section_stabs (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
1868 static bfd_byte *stabs;
1869 static bfd_size_type stab_size;
1871 static char *strtab;
1872 static bfd_size_type stabstr_size;
1874 /* Read ABFD's stabs section STABSECT_NAME into `stabs'
1875 and string table section STRSECT_NAME into `strtab'.
1876 If the section exists and was read, allocate the space and return true.
1877 Otherwise return false. */
1879 static boolean
1880 read_section_stabs (abfd, stabsect_name, strsect_name)
1881 bfd *abfd;
1882 const char *stabsect_name;
1883 const char *strsect_name;
1885 asection *stabsect, *stabstrsect;
1887 stabsect = bfd_get_section_by_name (abfd, stabsect_name);
1888 if (0 == stabsect)
1890 printf (_("No %s section present\n\n"), stabsect_name);
1891 return false;
1894 stabstrsect = bfd_get_section_by_name (abfd, strsect_name);
1895 if (0 == stabstrsect)
1897 non_fatal (_("%s has no %s section"),
1898 bfd_get_filename (abfd), strsect_name);
1899 exit_status = 1;
1900 return false;
1903 stab_size = bfd_section_size (abfd, stabsect);
1904 stabstr_size = bfd_section_size (abfd, stabstrsect);
1906 stabs = (bfd_byte *) xmalloc (stab_size);
1907 strtab = (char *) xmalloc (stabstr_size);
1909 if (! bfd_get_section_contents (abfd, stabsect, (PTR) stabs, 0, stab_size))
1911 non_fatal (_("Reading %s section of %s failed: %s"),
1912 stabsect_name, bfd_get_filename (abfd),
1913 bfd_errmsg (bfd_get_error ()));
1914 free (stabs);
1915 free (strtab);
1916 exit_status = 1;
1917 return false;
1920 if (! bfd_get_section_contents (abfd, stabstrsect, (PTR) strtab, 0,
1921 stabstr_size))
1923 non_fatal (_("Reading %s section of %s failed: %s\n"),
1924 strsect_name, bfd_get_filename (abfd),
1925 bfd_errmsg (bfd_get_error ()));
1926 free (stabs);
1927 free (strtab);
1928 exit_status = 1;
1929 return false;
1932 return true;
1935 /* Stabs entries use a 12 byte format:
1936 4 byte string table index
1937 1 byte stab type
1938 1 byte stab other field
1939 2 byte stab desc field
1940 4 byte stab value
1941 FIXME: This will have to change for a 64 bit object format. */
1943 #define STRDXOFF (0)
1944 #define TYPEOFF (4)
1945 #define OTHEROFF (5)
1946 #define DESCOFF (6)
1947 #define VALOFF (8)
1948 #define STABSIZE (12)
1950 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
1951 using string table section STRSECT_NAME (in `strtab'). */
1953 static void
1954 print_section_stabs (abfd, stabsect_name, strsect_name)
1955 bfd *abfd;
1956 const char *stabsect_name;
1957 const char *strsect_name ATTRIBUTE_UNUSED;
1959 int i;
1960 unsigned file_string_table_offset = 0, next_file_string_table_offset = 0;
1961 bfd_byte *stabp, *stabs_end;
1963 stabp = stabs;
1964 stabs_end = stabp + stab_size;
1966 printf (_("Contents of %s section:\n\n"), stabsect_name);
1967 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
1969 /* Loop through all symbols and print them.
1971 We start the index at -1 because there is a dummy symbol on
1972 the front of stabs-in-{coff,elf} sections that supplies sizes. */
1974 for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
1976 const char *name;
1977 unsigned long strx;
1978 unsigned char type, other;
1979 unsigned short desc;
1980 bfd_vma value;
1982 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
1983 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
1984 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
1985 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
1986 value = bfd_h_get_32 (abfd, stabp + VALOFF);
1988 printf ("\n%-6d ", i);
1989 /* Either print the stab name, or, if unnamed, print its number
1990 again (makes consistent formatting for tools like awk). */
1991 name = bfd_get_stab_name (type);
1992 if (name != NULL)
1993 printf ("%-6s", name);
1994 else if (type == N_UNDF)
1995 printf ("HdrSym");
1996 else
1997 printf ("%-6d", type);
1998 printf (" %-6d %-6d ", other, desc);
1999 printf_vma (value);
2000 printf (" %-6lu", strx);
2002 /* Symbols with type == 0 (N_UNDF) specify the length of the
2003 string table associated with this file. We use that info
2004 to know how to relocate the *next* file's string table indices. */
2006 if (type == N_UNDF)
2008 file_string_table_offset = next_file_string_table_offset;
2009 next_file_string_table_offset += value;
2011 else
2013 /* Using the (possibly updated) string table offset, print the
2014 string (if any) associated with this symbol. */
2016 if ((strx + file_string_table_offset) < stabstr_size)
2017 printf (" %s", &strtab[strx + file_string_table_offset]);
2018 else
2019 printf (" *");
2022 printf ("\n\n");
2025 static void
2026 dump_section_stabs (abfd, stabsect_name, strsect_name)
2027 bfd *abfd;
2028 char *stabsect_name;
2029 char *strsect_name;
2031 asection *s;
2033 /* Check for section names for which stabsect_name is a prefix, to
2034 handle .stab0, etc. */
2035 for (s = abfd->sections;
2036 s != NULL;
2037 s = s->next)
2039 int len;
2041 len = strlen (stabsect_name);
2043 /* If the prefix matches, and the files section name ends with a
2044 nul or a digit, then we match. I.e., we want either an exact
2045 match or a section followed by a number. */
2046 if (strncmp (stabsect_name, s->name, len) == 0
2047 && (s->name[len] == '\000'
2048 || isdigit ((unsigned char) s->name[len])))
2050 if (read_section_stabs (abfd, s->name, strsect_name))
2052 print_section_stabs (abfd, s->name, strsect_name);
2053 free (stabs);
2054 free (strtab);
2060 static void
2061 dump_bfd_header (abfd)
2062 bfd *abfd;
2064 char *comma = "";
2066 printf (_("architecture: %s, "),
2067 bfd_printable_arch_mach (bfd_get_arch (abfd),
2068 bfd_get_mach (abfd)));
2069 printf (_("flags 0x%08x:\n"), abfd->flags);
2071 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2072 PF (HAS_RELOC, "HAS_RELOC");
2073 PF (EXEC_P, "EXEC_P");
2074 PF (HAS_LINENO, "HAS_LINENO");
2075 PF (HAS_DEBUG, "HAS_DEBUG");
2076 PF (HAS_SYMS, "HAS_SYMS");
2077 PF (HAS_LOCALS, "HAS_LOCALS");
2078 PF (DYNAMIC, "DYNAMIC");
2079 PF (WP_TEXT, "WP_TEXT");
2080 PF (D_PAGED, "D_PAGED");
2081 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
2082 printf (_("\nstart address 0x"));
2083 printf_vma (abfd->start_address);
2084 printf ("\n");
2087 static void
2088 dump_bfd_private_header (abfd)
2089 bfd *abfd;
2091 bfd_print_private_bfd_data (abfd, stdout);
2094 /* Dump selected contents of ABFD */
2096 static void
2097 dump_bfd (abfd)
2098 bfd *abfd;
2100 /* If we are adjusting section VMA's, change them all now. Changing
2101 the BFD information is a hack. However, we must do it, or
2102 bfd_find_nearest_line will not do the right thing. */
2103 if (adjust_section_vma != 0)
2105 asection *s;
2107 for (s = abfd->sections; s != NULL; s = s->next)
2109 s->vma += adjust_section_vma;
2110 s->lma += adjust_section_vma;
2114 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
2115 abfd->xvec->name);
2116 if (dump_ar_hdrs)
2117 print_arelt_descr (stdout, abfd, true);
2118 if (dump_file_header)
2119 dump_bfd_header (abfd);
2120 if (dump_private_headers)
2121 dump_bfd_private_header (abfd);
2122 putchar ('\n');
2123 if (dump_section_headers)
2124 dump_headers (abfd);
2125 if (dump_symtab || dump_reloc_info || disassemble || dump_debugging)
2127 syms = slurp_symtab (abfd);
2129 if (dump_dynamic_symtab || dump_dynamic_reloc_info)
2131 dynsyms = slurp_dynamic_symtab (abfd);
2133 if (dump_symtab)
2134 dump_symbols (abfd, false);
2135 if (dump_dynamic_symtab)
2136 dump_symbols (abfd, true);
2137 if (dump_stab_section_info)
2138 dump_stabs (abfd);
2139 if (dump_reloc_info && ! disassemble)
2140 dump_relocs (abfd);
2141 if (dump_dynamic_reloc_info)
2142 dump_dynamic_relocs (abfd);
2143 if (dump_section_contents)
2144 dump_data (abfd);
2145 if (disassemble)
2146 disassemble_data (abfd);
2147 if (dump_debugging)
2149 PTR dhandle;
2151 dhandle = read_debugging_info (abfd, syms, symcount);
2152 if (dhandle != NULL)
2154 if (! print_debugging_info (stdout, dhandle))
2156 non_fatal (_("%s: printing debugging information failed"),
2157 bfd_get_filename (abfd));
2158 exit_status = 1;
2162 if (syms)
2164 free (syms);
2165 syms = NULL;
2167 if (dynsyms)
2169 free (dynsyms);
2170 dynsyms = NULL;
2174 static void
2175 display_bfd (abfd)
2176 bfd *abfd;
2178 char **matching;
2180 if (bfd_check_format_matches (abfd, bfd_object, &matching))
2182 dump_bfd (abfd);
2183 return;
2186 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
2188 nonfatal (bfd_get_filename (abfd));
2189 list_matching_formats (matching);
2190 free (matching);
2191 return;
2194 if (bfd_get_error () != bfd_error_file_not_recognized)
2196 nonfatal (bfd_get_filename (abfd));
2197 return;
2200 if (bfd_check_format_matches (abfd, bfd_core, &matching))
2202 dump_bfd (abfd);
2203 return;
2206 nonfatal (bfd_get_filename (abfd));
2208 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
2210 list_matching_formats (matching);
2211 free (matching);
2215 static void
2216 display_file (filename, target)
2217 char *filename;
2218 char *target;
2220 bfd *file, *arfile = (bfd *) NULL;
2222 file = bfd_openr (filename, target);
2223 if (file == NULL)
2225 nonfatal (filename);
2226 return;
2229 if (bfd_check_format (file, bfd_archive) == true)
2231 bfd *last_arfile = NULL;
2233 printf (_("In archive %s:\n"), bfd_get_filename (file));
2234 for (;;)
2236 bfd_set_error (bfd_error_no_error);
2238 arfile = bfd_openr_next_archived_file (file, arfile);
2239 if (arfile == NULL)
2241 if (bfd_get_error () != bfd_error_no_more_archived_files)
2242 nonfatal (bfd_get_filename (file));
2243 break;
2246 display_bfd (arfile);
2248 if (last_arfile != NULL)
2249 bfd_close (last_arfile);
2250 last_arfile = arfile;
2253 if (last_arfile != NULL)
2254 bfd_close (last_arfile);
2256 else
2257 display_bfd (file);
2259 bfd_close (file);
2262 /* Actually display the various requested regions */
2264 static void
2265 dump_data (abfd)
2266 bfd *abfd;
2268 asection *section;
2269 bfd_byte *data = 0;
2270 bfd_size_type datasize = 0;
2271 bfd_size_type addr_offset;
2272 bfd_size_type start_offset, stop_offset;
2273 unsigned int opb = bfd_octets_per_byte (abfd);
2275 for (section = abfd->sections; section != NULL; section =
2276 section->next)
2278 int onaline = 16;
2280 if (only == (char *) NULL ||
2281 strcmp (only, section->name) == 0)
2283 if (section->flags & SEC_HAS_CONTENTS)
2285 printf (_("Contents of section %s:\n"), section->name);
2287 if (bfd_section_size (abfd, section) == 0)
2288 continue;
2289 data = (bfd_byte *) xmalloc ((size_t) bfd_section_size (abfd, section));
2290 datasize = bfd_section_size (abfd, section);
2293 bfd_get_section_contents (abfd, section, (PTR) data, 0, bfd_section_size (abfd, section));
2295 if (start_address == (bfd_vma) -1
2296 || start_address < section->vma)
2297 start_offset = 0;
2298 else
2299 start_offset = start_address - section->vma;
2300 if (stop_address == (bfd_vma) -1)
2301 stop_offset = bfd_section_size (abfd, section) / opb;
2302 else
2304 if (stop_address < section->vma)
2305 stop_offset = 0;
2306 else
2307 stop_offset = stop_address - section->vma;
2308 if (stop_offset > bfd_section_size (abfd, section) / opb)
2309 stop_offset = bfd_section_size (abfd, section) / opb;
2311 for (addr_offset = start_offset;
2312 addr_offset < stop_offset; addr_offset += onaline)
2314 bfd_size_type j;
2316 printf (" %04lx ", (unsigned long int)
2317 (addr_offset + section->vma));
2318 for (j = addr_offset * opb;
2319 j < addr_offset * opb + onaline; j++)
2321 if (j < stop_offset * opb)
2322 printf ("%02x", (unsigned) (data[j]));
2323 else
2324 printf (" ");
2325 if ((j & 3) == 3)
2326 printf (" ");
2329 printf (" ");
2330 for (j = addr_offset; j < addr_offset * opb + onaline; j++)
2332 if (j >= stop_offset * opb)
2333 printf (" ");
2334 else
2335 printf ("%c", isprint (data[j]) ? data[j] : '.');
2337 putchar ('\n');
2339 free (data);
2345 /* Should perhaps share code and display with nm? */
2346 static void
2347 dump_symbols (abfd, dynamic)
2348 bfd *abfd ATTRIBUTE_UNUSED;
2349 boolean dynamic;
2351 asymbol **current;
2352 long max;
2353 long count;
2355 if (dynamic)
2357 current = dynsyms;
2358 max = dynsymcount;
2359 if (max == 0)
2360 return;
2361 printf ("DYNAMIC SYMBOL TABLE:\n");
2363 else
2365 current = syms;
2366 max = symcount;
2367 if (max == 0)
2368 return;
2369 printf ("SYMBOL TABLE:\n");
2372 for (count = 0; count < max; count++)
2374 if (*current)
2376 bfd *cur_bfd = bfd_asymbol_bfd (*current);
2378 if (cur_bfd != NULL)
2380 const char *name;
2381 char *alloc;
2383 name = bfd_asymbol_name (*current);
2384 alloc = NULL;
2385 if (do_demangle && name != NULL && *name != '\0')
2387 const char *n;
2389 /* If we want to demangle the name, we demangle it
2390 here, and temporarily clobber it while calling
2391 bfd_print_symbol. FIXME: This is a gross hack. */
2393 n = name;
2394 if (bfd_get_symbol_leading_char (cur_bfd) == *n)
2395 ++n;
2396 alloc = cplus_demangle (n, DMGL_ANSI | DMGL_PARAMS);
2397 if (alloc != NULL)
2398 (*current)->name = alloc;
2399 else
2400 (*current)->name = n;
2403 bfd_print_symbol (cur_bfd, stdout, *current,
2404 bfd_print_symbol_all);
2406 (*current)->name = name;
2407 if (alloc != NULL)
2408 free (alloc);
2410 printf ("\n");
2413 current++;
2415 printf ("\n");
2416 printf ("\n");
2419 static void
2420 dump_relocs (abfd)
2421 bfd *abfd;
2423 arelent **relpp;
2424 long relcount;
2425 asection *a;
2427 for (a = abfd->sections; a != (asection *) NULL; a = a->next)
2429 long relsize;
2431 if (bfd_is_abs_section (a))
2432 continue;
2433 if (bfd_is_und_section (a))
2434 continue;
2435 if (bfd_is_com_section (a))
2436 continue;
2438 if (only)
2440 if (strcmp (only, a->name))
2441 continue;
2443 else if ((a->flags & SEC_RELOC) == 0)
2444 continue;
2446 relsize = bfd_get_reloc_upper_bound (abfd, a);
2447 if (relsize < 0)
2448 bfd_fatal (bfd_get_filename (abfd));
2450 printf ("RELOCATION RECORDS FOR [%s]:", a->name);
2452 if (relsize == 0)
2454 printf (" (none)\n\n");
2456 else
2458 relpp = (arelent **) xmalloc (relsize);
2459 relcount = bfd_canonicalize_reloc (abfd, a, relpp, syms);
2460 if (relcount < 0)
2461 bfd_fatal (bfd_get_filename (abfd));
2462 else if (relcount == 0)
2464 printf (" (none)\n\n");
2466 else
2468 printf ("\n");
2469 dump_reloc_set (abfd, a, relpp, relcount);
2470 printf ("\n\n");
2472 free (relpp);
2477 static void
2478 dump_dynamic_relocs (abfd)
2479 bfd *abfd;
2481 long relsize;
2482 arelent **relpp;
2483 long relcount;
2485 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2486 if (relsize < 0)
2487 bfd_fatal (bfd_get_filename (abfd));
2489 printf ("DYNAMIC RELOCATION RECORDS");
2491 if (relsize == 0)
2493 printf (" (none)\n\n");
2495 else
2497 relpp = (arelent **) xmalloc (relsize);
2498 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
2499 if (relcount < 0)
2500 bfd_fatal (bfd_get_filename (abfd));
2501 else if (relcount == 0)
2503 printf (" (none)\n\n");
2505 else
2507 printf ("\n");
2508 dump_reloc_set (abfd, (asection *) NULL, relpp, relcount);
2509 printf ("\n\n");
2511 free (relpp);
2515 static void
2516 dump_reloc_set (abfd, sec, relpp, relcount)
2517 bfd *abfd;
2518 asection *sec;
2519 arelent **relpp;
2520 long relcount;
2522 arelent **p;
2523 char *last_filename, *last_functionname;
2524 unsigned int last_line;
2526 /* Get column headers lined up reasonably. */
2528 static int width;
2529 if (width == 0)
2531 char buf[30];
2532 sprintf_vma (buf, (bfd_vma) -1);
2533 width = strlen (buf) - 7;
2535 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2538 last_filename = NULL;
2539 last_functionname = NULL;
2540 last_line = 0;
2542 for (p = relpp; relcount && *p != (arelent *) NULL; p++, relcount--)
2544 arelent *q = *p;
2545 const char *filename, *functionname;
2546 unsigned int line;
2547 const char *sym_name;
2548 const char *section_name;
2550 if (start_address != (bfd_vma) -1
2551 && q->address < start_address)
2552 continue;
2553 if (stop_address != (bfd_vma) -1
2554 && q->address > stop_address)
2555 continue;
2557 if (with_line_numbers
2558 && sec != NULL
2559 && bfd_find_nearest_line (abfd, sec, syms, q->address,
2560 &filename, &functionname, &line))
2562 if (functionname != NULL
2563 && (last_functionname == NULL
2564 || strcmp (functionname, last_functionname) != 0))
2566 printf ("%s():\n", functionname);
2567 if (last_functionname != NULL)
2568 free (last_functionname);
2569 last_functionname = xstrdup (functionname);
2571 if (line > 0
2572 && (line != last_line
2573 || (filename != NULL
2574 && last_filename != NULL
2575 && strcmp (filename, last_filename) != 0)))
2577 printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
2578 last_line = line;
2579 if (last_filename != NULL)
2580 free (last_filename);
2581 if (filename == NULL)
2582 last_filename = NULL;
2583 else
2584 last_filename = xstrdup (filename);
2588 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2590 sym_name = (*(q->sym_ptr_ptr))->name;
2591 section_name = (*(q->sym_ptr_ptr))->section->name;
2593 else
2595 sym_name = NULL;
2596 section_name = NULL;
2598 if (sym_name)
2600 printf_vma (q->address);
2601 if (q->howto->name)
2602 printf (" %-16s ", q->howto->name);
2603 else
2604 printf (" %-16d ", q->howto->type);
2605 objdump_print_symname (abfd, (struct disassemble_info *) NULL,
2606 *q->sym_ptr_ptr);
2608 else
2610 if (section_name == (CONST char *) NULL)
2611 section_name = "*unknown*";
2612 printf_vma (q->address);
2613 printf (" %-16s [%s]",
2614 q->howto->name,
2615 section_name);
2617 if (q->addend)
2619 printf ("+0x");
2620 printf_vma (q->addend);
2622 printf ("\n");
2626 /* The length of the longest architecture name + 1. */
2627 #define LONGEST_ARCH sizeof("powerpc:common")
2629 static const char *
2630 endian_string (endian)
2631 enum bfd_endian endian;
2633 if (endian == BFD_ENDIAN_BIG)
2634 return "big endian";
2635 else if (endian == BFD_ENDIAN_LITTLE)
2636 return "little endian";
2637 else
2638 return "endianness unknown";
2641 /* List the targets that BFD is configured to support, each followed
2642 by its endianness and the architectures it supports. */
2644 static void
2645 display_target_list ()
2647 extern bfd_target *bfd_target_vector[];
2648 char *dummy_name;
2649 int t;
2651 dummy_name = make_temp_file (NULL);
2652 for (t = 0; bfd_target_vector[t]; t++)
2654 bfd_target *p = bfd_target_vector[t];
2655 bfd *abfd = bfd_openw (dummy_name, p->name);
2656 int a;
2658 printf ("%s\n (header %s, data %s)\n", p->name,
2659 endian_string (p->header_byteorder),
2660 endian_string (p->byteorder));
2662 if (abfd == NULL)
2664 nonfatal (dummy_name);
2665 continue;
2668 if (! bfd_set_format (abfd, bfd_object))
2670 if (bfd_get_error () != bfd_error_invalid_operation)
2671 nonfatal (p->name);
2672 bfd_close_all_done (abfd);
2673 continue;
2676 for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
2677 if (bfd_set_arch_mach (abfd, (enum bfd_architecture) a, 0))
2678 printf (" %s\n",
2679 bfd_printable_arch_mach ((enum bfd_architecture) a, 0));
2680 bfd_close_all_done (abfd);
2682 unlink (dummy_name);
2683 free (dummy_name);
2686 /* Print a table showing which architectures are supported for entries
2687 FIRST through LAST-1 of bfd_target_vector (targets across,
2688 architectures down). */
2690 static void
2691 display_info_table (first, last)
2692 int first;
2693 int last;
2695 extern bfd_target *bfd_target_vector[];
2696 int t, a;
2697 char *dummy_name;
2699 /* Print heading of target names. */
2700 printf ("\n%*s", (int) LONGEST_ARCH, " ");
2701 for (t = first; t < last && bfd_target_vector[t]; t++)
2702 printf ("%s ", bfd_target_vector[t]->name);
2703 putchar ('\n');
2705 dummy_name = make_temp_file (NULL);
2706 for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
2707 if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0)
2709 printf ("%*s ", (int) LONGEST_ARCH - 1,
2710 bfd_printable_arch_mach (a, 0));
2711 for (t = first; t < last && bfd_target_vector[t]; t++)
2713 bfd_target *p = bfd_target_vector[t];
2714 boolean ok = true;
2715 bfd *abfd = bfd_openw (dummy_name, p->name);
2717 if (abfd == NULL)
2719 nonfatal (p->name);
2720 ok = false;
2723 if (ok)
2725 if (! bfd_set_format (abfd, bfd_object))
2727 if (bfd_get_error () != bfd_error_invalid_operation)
2728 nonfatal (p->name);
2729 ok = false;
2733 if (ok)
2735 if (! bfd_set_arch_mach (abfd, a, 0))
2736 ok = false;
2739 if (ok)
2740 printf ("%s ", p->name);
2741 else
2743 int l = strlen (p->name);
2744 while (l--)
2745 putchar ('-');
2746 putchar (' ');
2748 if (abfd != NULL)
2749 bfd_close_all_done (abfd);
2751 putchar ('\n');
2753 unlink (dummy_name);
2754 free (dummy_name);
2757 /* Print tables of all the target-architecture combinations that
2758 BFD has been configured to support. */
2760 static void
2761 display_target_tables ()
2763 int t, columns;
2764 extern bfd_target *bfd_target_vector[];
2765 char *colum;
2767 columns = 0;
2768 colum = getenv ("COLUMNS");
2769 if (colum != NULL)
2770 columns = atoi (colum);
2771 if (columns == 0)
2772 columns = 80;
2774 t = 0;
2775 while (bfd_target_vector[t] != NULL)
2777 int oldt = t, wid;
2779 wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1;
2780 ++t;
2781 while (wid < columns && bfd_target_vector[t] != NULL)
2783 int newwid;
2785 newwid = wid + strlen (bfd_target_vector[t]->name) + 1;
2786 if (newwid >= columns)
2787 break;
2788 wid = newwid;
2789 ++t;
2791 display_info_table (oldt, t);
2795 static void
2796 display_info ()
2798 printf (_("BFD header file version %s\n"), BFD_VERSION);
2799 display_target_list ();
2800 display_target_tables ();
2804 main (argc, argv)
2805 int argc;
2806 char **argv;
2808 int c;
2809 char *target = default_target;
2810 boolean seenflag = false;
2812 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
2813 setlocale (LC_MESSAGES, "");
2814 #endif
2815 bindtextdomain (PACKAGE, LOCALEDIR);
2816 textdomain (PACKAGE);
2818 program_name = *argv;
2819 xmalloc_set_program_name (program_name);
2821 START_PROGRESS (program_name, 0);
2823 bfd_init ();
2824 set_default_bfd_target ();
2826 while ((c = getopt_long (argc, argv, "pib:m:M:VCdDlfahHrRtTxsSj:wE:zgG",
2827 long_options, (int *) 0))
2828 != EOF)
2830 switch (c)
2832 case 0:
2833 break; /* we've been given a long option */
2834 case 'm':
2835 machine = optarg;
2836 break;
2837 case 'M':
2838 disassembler_options = optarg;
2839 break;
2840 case 'j':
2841 only = optarg;
2842 break;
2843 case 'l':
2844 with_line_numbers = true;
2845 break;
2846 case 'b':
2847 target = optarg;
2848 break;
2849 case 'C':
2850 do_demangle = true;
2851 if (optarg != NULL)
2853 enum demangling_styles style;
2855 style = cplus_demangle_name_to_style (optarg);
2856 if (style == unknown_demangling)
2857 fatal (_("unknown demangling style `%s'"),
2858 optarg);
2860 cplus_demangle_set_style (style);
2862 break;
2863 case 'w':
2864 wide_output = true;
2865 break;
2866 case OPTION_ADJUST_VMA:
2867 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
2868 break;
2869 case OPTION_START_ADDRESS:
2870 start_address = parse_vma (optarg, "--start-address");
2871 break;
2872 case OPTION_STOP_ADDRESS:
2873 stop_address = parse_vma (optarg, "--stop-address");
2874 break;
2875 case 'E':
2876 if (strcmp (optarg, "B") == 0)
2877 endian = BFD_ENDIAN_BIG;
2878 else if (strcmp (optarg, "L") == 0)
2879 endian = BFD_ENDIAN_LITTLE;
2880 else
2882 non_fatal (_("unrecognized -E option"));
2883 usage (stderr, 1);
2885 break;
2886 case OPTION_ENDIAN:
2887 if (strncmp (optarg, "big", strlen (optarg)) == 0)
2888 endian = BFD_ENDIAN_BIG;
2889 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
2890 endian = BFD_ENDIAN_LITTLE;
2891 else
2893 non_fatal (_("unrecognized --endian type `%s'"), optarg);
2894 usage (stderr, 1);
2896 break;
2898 case 'f':
2899 dump_file_header = true;
2900 seenflag = true;
2901 break;
2902 case 'i':
2903 formats_info = true;
2904 seenflag = true;
2905 break;
2906 case 'p':
2907 dump_private_headers = true;
2908 seenflag = true;
2909 break;
2910 case 'x':
2911 dump_private_headers = true;
2912 dump_symtab = true;
2913 dump_reloc_info = true;
2914 dump_file_header = true;
2915 dump_ar_hdrs = true;
2916 dump_section_headers = true;
2917 seenflag = true;
2918 break;
2919 case 't':
2920 dump_symtab = true;
2921 seenflag = true;
2922 break;
2923 case 'T':
2924 dump_dynamic_symtab = true;
2925 seenflag = true;
2926 break;
2927 case 'd':
2928 disassemble = true;
2929 seenflag = true;
2930 break;
2931 case 'z':
2932 disassemble_zeroes = true;
2933 break;
2934 case 'D':
2935 disassemble = true;
2936 disassemble_all = true;
2937 seenflag = true;
2938 break;
2939 case 'S':
2940 disassemble = true;
2941 with_source_code = true;
2942 seenflag = true;
2943 break;
2944 case 'g':
2945 dump_debugging = 1;
2946 seenflag = true;
2947 break;
2948 case 'G':
2949 dump_stab_section_info = true;
2950 seenflag = true;
2951 break;
2952 case 's':
2953 dump_section_contents = true;
2954 seenflag = true;
2955 break;
2956 case 'r':
2957 dump_reloc_info = true;
2958 seenflag = true;
2959 break;
2960 case 'R':
2961 dump_dynamic_reloc_info = true;
2962 seenflag = true;
2963 break;
2964 case 'a':
2965 dump_ar_hdrs = true;
2966 seenflag = true;
2967 break;
2968 case 'h':
2969 dump_section_headers = true;
2970 seenflag = true;
2971 break;
2972 case 'H':
2973 usage (stdout, 0);
2974 seenflag = true;
2975 case 'V':
2976 show_version = true;
2977 seenflag = true;
2978 break;
2980 default:
2981 usage (stderr, 1);
2985 if (show_version)
2986 print_version ("objdump");
2988 if (seenflag == false)
2989 usage (stderr, 2);
2991 if (formats_info)
2992 display_info ();
2993 else
2995 if (optind == argc)
2996 display_file ("a.out", target);
2997 else
2998 for (; optind < argc;)
2999 display_file (argv[optind++], target);
3002 END_PROGRESS (program_name);
3004 return exit_status;