* deffilep.y (def_file_free): Add missing shadow parameter renaming.
[binutils.git] / binutils / objdump.c
blob79be66501d835bc9116a61116767c4f3ccfd7905
1 /* objdump.c -- dump information about an object file.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
6 This file is part of GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
11 any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
24 /* Objdump overview.
26 Objdump displays information about one or more object files, either on
27 their own, or inside libraries. It is commonly used as a disassembler,
28 but it can also display information about file headers, symbol tables,
29 relocations, debugging directives and more.
31 The flow of execution is as follows:
33 1. Command line arguments are checked for control switches and the
34 information to be displayed is selected.
36 2. Any remaining arguments are assumed to be object files, and they are
37 processed in order by display_bfd(). If the file is an archive each
38 of its elements is processed in turn.
40 3. The file's target architecture and binary file format are determined
41 by bfd_check_format(). If they are recognised, then dump_bfd() is
42 called.
44 4. dump_bfd() in turn calls separate functions to display the requested
45 item(s) of information(s). For example disassemble_data() is called if
46 a disassembly has been requested.
48 When disassembling the code loops through blocks of instructions bounded
49 by symbols, calling disassemble_bytes() on each block. The actual
50 disassembling is done by the libopcodes library, via a function pointer
51 supplied by the disassembler() function. */
53 #include "sysdep.h"
54 #include "bfd.h"
55 #include "elf-bfd.h"
56 #include "progress.h"
57 #include "bucomm.h"
58 #include "dwarf.h"
59 #include "getopt.h"
60 #include "safe-ctype.h"
61 #include "dis-asm.h"
62 #include "libiberty.h"
63 #include "demangle.h"
64 #include "filenames.h"
65 #include "debug.h"
66 #include "budbg.h"
68 #ifdef HAVE_MMAP
69 #include <sys/mman.h>
70 #endif
72 #include <sys/stat.h>
74 /* Internal headers for the ELF .stab-dump code - sorry. */
75 #define BYTES_IN_WORD 32
76 #include "aout/aout64.h"
78 /* Exit status. */
79 static int exit_status = 0;
81 static char *default_target = NULL; /* Default at runtime. */
83 /* The following variables are set based on arguments passed on the
84 command line. */
85 static int show_version = 0; /* Show the version number. */
86 static int dump_section_contents; /* -s */
87 static int dump_section_headers; /* -h */
88 static bfd_boolean dump_file_header; /* -f */
89 static int dump_symtab; /* -t */
90 static int dump_dynamic_symtab; /* -T */
91 static int dump_reloc_info; /* -r */
92 static int dump_dynamic_reloc_info; /* -R */
93 static int dump_ar_hdrs; /* -a */
94 static int dump_private_headers; /* -p */
95 static int prefix_addresses; /* --prefix-addresses */
96 static int with_line_numbers; /* -l */
97 static bfd_boolean with_source_code; /* -S */
98 static int show_raw_insn; /* --show-raw-insn */
99 static int dump_dwarf_section_info; /* --dwarf */
100 static int dump_stab_section_info; /* --stabs */
101 static int do_demangle; /* -C, --demangle */
102 static bfd_boolean disassemble; /* -d */
103 static bfd_boolean disassemble_all; /* -D */
104 static int disassemble_zeroes; /* --disassemble-zeroes */
105 static bfd_boolean formats_info; /* -i */
106 static int wide_output; /* -w */
107 static int insn_width; /* --insn-width */
108 static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
109 static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
110 static int dump_debugging; /* --debugging */
111 static int dump_debugging_tags; /* --debugging-tags */
112 static int dump_special_syms = 0; /* --special-syms */
113 static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
114 static int file_start_context = 0; /* --file-start-context */
115 static bfd_boolean display_file_offsets;/* -F */
116 static const char *prefix; /* --prefix */
117 static int prefix_strip; /* --prefix-strip */
118 static size_t prefix_length;
120 /* Pointer to an array of section names provided by
121 one or more "-j secname" command line options. */
122 static char **only;
123 /* The total number of slots in the only[] array. */
124 static size_t only_size = 0;
125 /* The number of occupied slots in the only[] array. */
126 static size_t only_used = 0;
128 /* Variables for handling include file path table. */
129 static const char **include_paths;
130 static int include_path_count;
132 /* Extra info to pass to the section disassembler and address printing
133 function. */
134 struct objdump_disasm_info
136 bfd * abfd;
137 asection * sec;
138 bfd_boolean require_sec;
139 arelent ** dynrelbuf;
140 long dynrelcount;
141 disassembler_ftype disassemble_fn;
142 arelent * reloc;
145 /* Architecture to disassemble for, or default if NULL. */
146 static char *machine = NULL;
148 /* Target specific options to the disassembler. */
149 static char *disassembler_options = NULL;
151 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
152 static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
154 /* The symbol table. */
155 static asymbol **syms;
157 /* Number of symbols in `syms'. */
158 static long symcount = 0;
160 /* The sorted symbol table. */
161 static asymbol **sorted_syms;
163 /* Number of symbols in `sorted_syms'. */
164 static long sorted_symcount = 0;
166 /* The dynamic symbol table. */
167 static asymbol **dynsyms;
169 /* The synthetic symbol table. */
170 static asymbol *synthsyms;
171 static long synthcount = 0;
173 /* Number of symbols in `dynsyms'. */
174 static long dynsymcount = 0;
176 static bfd_byte *stabs;
177 static bfd_size_type stab_size;
179 static char *strtab;
180 static bfd_size_type stabstr_size;
182 static bfd_boolean is_relocatable = FALSE;
184 static void
185 usage (FILE *stream, int status)
187 fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name);
188 fprintf (stream, _(" Display information from object <file(s)>.\n"));
189 fprintf (stream, _(" At least one of the following switches must be given:\n"));
190 fprintf (stream, _("\
191 -a, --archive-headers Display archive header information\n\
192 -f, --file-headers Display the contents of the overall file header\n\
193 -p, --private-headers Display object format specific file header contents\n\
194 -h, --[section-]headers Display the contents of the section headers\n\
195 -x, --all-headers Display the contents of all headers\n\
196 -d, --disassemble Display assembler contents of executable sections\n\
197 -D, --disassemble-all Display assembler contents of all sections\n\
198 -S, --source Intermix source code with disassembly\n\
199 -s, --full-contents Display the full contents of all sections requested\n\
200 -g, --debugging Display debug information in object file\n\
201 -e, --debugging-tags Display debug information using ctags style\n\
202 -G, --stabs Display (in raw form) any STABS info in the file\n\
203 -W[lLiaprmfFsoRt] or\n\
204 --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,\n\
205 =frames-interp,=str,=loc,=Ranges,=pubtypes]\n\
206 Display DWARF info in the file\n\
207 -t, --syms Display the contents of the symbol table(s)\n\
208 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
209 -r, --reloc Display the relocation entries in the file\n\
210 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
211 @<file> Read options from <file>\n\
212 -v, --version Display this program's version number\n\
213 -i, --info List object formats and architectures supported\n\
214 -H, --help Display this information\n\
215 "));
216 if (status != 2)
218 fprintf (stream, _("\n The following switches are optional:\n"));
219 fprintf (stream, _("\
220 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
221 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
222 -j, --section=NAME Only display information for section NAME\n\
223 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
224 -EB --endian=big Assume big endian format when disassembling\n\
225 -EL --endian=little Assume little endian format when disassembling\n\
226 --file-start-context Include context from start of file (with -S)\n\
227 -I, --include=DIR Add DIR to search list for source files\n\
228 -l, --line-numbers Include line numbers and filenames in output\n\
229 -F, --file-offsets Include file offsets when displaying information\n\
230 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
231 The STYLE, if specified, can be `auto', `gnu',\n\
232 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
233 or `gnat'\n\
234 -w, --wide Format output for more than 80 columns\n\
235 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
236 --start-address=ADDR Only process data whose address is >= ADDR\n\
237 --stop-address=ADDR Only process data whose address is <= ADDR\n\
238 --prefix-addresses Print complete address alongside disassembly\n\
239 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
240 --insn-width=WIDTH Display WIDTH bytes on a signle line for -d\n\
241 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
242 --special-syms Include special symbols in symbol dumps\n\
243 --prefix=PREFIX Add PREFIX to absolute paths for -S\n\
244 --prefix-strip=LEVEL Strip initial directory names for -S\n\
245 \n"));
246 list_supported_targets (program_name, stream);
247 list_supported_architectures (program_name, stream);
249 disassembler_usage (stream);
251 if (REPORT_BUGS_TO[0] && status == 0)
252 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
253 exit (status);
256 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
257 enum option_values
259 OPTION_ENDIAN=150,
260 OPTION_START_ADDRESS,
261 OPTION_STOP_ADDRESS,
262 OPTION_DWARF,
263 OPTION_PREFIX,
264 OPTION_PREFIX_STRIP,
265 OPTION_INSN_WIDTH,
266 OPTION_ADJUST_VMA
269 static struct option long_options[]=
271 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
272 {"all-headers", no_argument, NULL, 'x'},
273 {"private-headers", no_argument, NULL, 'p'},
274 {"architecture", required_argument, NULL, 'm'},
275 {"archive-headers", no_argument, NULL, 'a'},
276 {"debugging", no_argument, NULL, 'g'},
277 {"debugging-tags", no_argument, NULL, 'e'},
278 {"demangle", optional_argument, NULL, 'C'},
279 {"disassemble", no_argument, NULL, 'd'},
280 {"disassemble-all", no_argument, NULL, 'D'},
281 {"disassembler-options", required_argument, NULL, 'M'},
282 {"disassemble-zeroes", no_argument, NULL, 'z'},
283 {"dynamic-reloc", no_argument, NULL, 'R'},
284 {"dynamic-syms", no_argument, NULL, 'T'},
285 {"endian", required_argument, NULL, OPTION_ENDIAN},
286 {"file-headers", no_argument, NULL, 'f'},
287 {"file-offsets", no_argument, NULL, 'F'},
288 {"file-start-context", no_argument, &file_start_context, 1},
289 {"full-contents", no_argument, NULL, 's'},
290 {"headers", no_argument, NULL, 'h'},
291 {"help", no_argument, NULL, 'H'},
292 {"info", no_argument, NULL, 'i'},
293 {"line-numbers", no_argument, NULL, 'l'},
294 {"no-show-raw-insn", no_argument, &show_raw_insn, -1},
295 {"prefix-addresses", no_argument, &prefix_addresses, 1},
296 {"reloc", no_argument, NULL, 'r'},
297 {"section", required_argument, NULL, 'j'},
298 {"section-headers", no_argument, NULL, 'h'},
299 {"show-raw-insn", no_argument, &show_raw_insn, 1},
300 {"source", no_argument, NULL, 'S'},
301 {"special-syms", no_argument, &dump_special_syms, 1},
302 {"include", required_argument, NULL, 'I'},
303 {"dwarf", optional_argument, NULL, OPTION_DWARF},
304 {"stabs", no_argument, NULL, 'G'},
305 {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
306 {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
307 {"syms", no_argument, NULL, 't'},
308 {"target", required_argument, NULL, 'b'},
309 {"version", no_argument, NULL, 'V'},
310 {"wide", no_argument, NULL, 'w'},
311 {"prefix", required_argument, NULL, OPTION_PREFIX},
312 {"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP},
313 {"insn-width", required_argument, NULL, OPTION_INSN_WIDTH},
314 {0, no_argument, 0, 0}
317 static void
318 nonfatal (const char *msg)
320 bfd_nonfatal (msg);
321 exit_status = 1;
324 /* Returns TRUE if the specified section should be dumped. */
326 static bfd_boolean
327 process_section_p (asection * section)
329 size_t i;
331 if (only == NULL)
332 return TRUE;
334 for (i = 0; i < only_used; i++)
335 if (strcmp (only [i], section->name) == 0)
336 return TRUE;
338 return FALSE;
341 static void
342 dump_section_header (bfd *abfd, asection *section,
343 void *ignored ATTRIBUTE_UNUSED)
345 char *comma = "";
346 unsigned int opb = bfd_octets_per_byte (abfd);
348 /* Ignore linker created section. See elfNN_ia64_object_p in
349 bfd/elfxx-ia64.c. */
350 if (section->flags & SEC_LINKER_CREATED)
351 return;
353 /* PR 10413: Skip sections that we are ignoring. */
354 if (! process_section_p (section))
355 return;
357 printf ("%3d %-13s %08lx ", section->index,
358 bfd_get_section_name (abfd, section),
359 (unsigned long) bfd_section_size (abfd, section) / opb);
360 bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
361 printf (" ");
362 bfd_printf_vma (abfd, section->lma);
363 printf (" %08lx 2**%u", (unsigned long) section->filepos,
364 bfd_get_section_alignment (abfd, section));
365 if (! wide_output)
366 printf ("\n ");
367 printf (" ");
369 #define PF(x, y) \
370 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
372 PF (SEC_HAS_CONTENTS, "CONTENTS");
373 PF (SEC_ALLOC, "ALLOC");
374 PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
375 PF (SEC_LOAD, "LOAD");
376 PF (SEC_RELOC, "RELOC");
377 PF (SEC_READONLY, "READONLY");
378 PF (SEC_CODE, "CODE");
379 PF (SEC_DATA, "DATA");
380 PF (SEC_ROM, "ROM");
381 PF (SEC_DEBUGGING, "DEBUGGING");
382 PF (SEC_NEVER_LOAD, "NEVER_LOAD");
383 PF (SEC_EXCLUDE, "EXCLUDE");
384 PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
385 if (bfd_get_arch (abfd) == bfd_arch_tic54x)
387 PF (SEC_TIC54X_BLOCK, "BLOCK");
388 PF (SEC_TIC54X_CLINK, "CLINK");
390 PF (SEC_SMALL_DATA, "SMALL_DATA");
391 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
392 PF (SEC_COFF_SHARED, "SHARED");
393 PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
394 PF (SEC_GROUP, "GROUP");
396 if ((section->flags & SEC_LINK_ONCE) != 0)
398 const char *ls;
399 struct coff_comdat_info *comdat;
401 switch (section->flags & SEC_LINK_DUPLICATES)
403 default:
404 abort ();
405 case SEC_LINK_DUPLICATES_DISCARD:
406 ls = "LINK_ONCE_DISCARD";
407 break;
408 case SEC_LINK_DUPLICATES_ONE_ONLY:
409 ls = "LINK_ONCE_ONE_ONLY";
410 break;
411 case SEC_LINK_DUPLICATES_SAME_SIZE:
412 ls = "LINK_ONCE_SAME_SIZE";
413 break;
414 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
415 ls = "LINK_ONCE_SAME_CONTENTS";
416 break;
418 printf ("%s%s", comma, ls);
420 comdat = bfd_coff_get_comdat_section (abfd, section);
421 if (comdat != NULL)
422 printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
424 comma = ", ";
427 printf ("\n");
428 #undef PF
431 static void
432 dump_headers (bfd *abfd)
434 printf (_("Sections:\n"));
436 #ifndef BFD64
437 printf (_("Idx Name Size VMA LMA File off Algn"));
438 #else
439 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
440 if (bfd_get_arch_size (abfd) == 32)
441 printf (_("Idx Name Size VMA LMA File off Algn"));
442 else
443 printf (_("Idx Name Size VMA LMA File off Algn"));
444 #endif
446 if (wide_output)
447 printf (_(" Flags"));
448 if (abfd->flags & HAS_LOAD_PAGE)
449 printf (_(" Pg"));
450 printf ("\n");
452 bfd_map_over_sections (abfd, dump_section_header, NULL);
455 static asymbol **
456 slurp_symtab (bfd *abfd)
458 asymbol **sy = NULL;
459 long storage;
461 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
463 symcount = 0;
464 return NULL;
467 storage = bfd_get_symtab_upper_bound (abfd);
468 if (storage < 0)
469 bfd_fatal (bfd_get_filename (abfd));
470 if (storage)
471 sy = (asymbol **) xmalloc (storage);
473 symcount = bfd_canonicalize_symtab (abfd, sy);
474 if (symcount < 0)
475 bfd_fatal (bfd_get_filename (abfd));
476 return sy;
479 /* Read in the dynamic symbols. */
481 static asymbol **
482 slurp_dynamic_symtab (bfd *abfd)
484 asymbol **sy = NULL;
485 long storage;
487 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
488 if (storage < 0)
490 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
492 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
493 dynsymcount = 0;
494 return NULL;
497 bfd_fatal (bfd_get_filename (abfd));
499 if (storage)
500 sy = (asymbol **) xmalloc (storage);
502 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
503 if (dynsymcount < 0)
504 bfd_fatal (bfd_get_filename (abfd));
505 return sy;
508 /* Filter out (in place) symbols that are useless for disassembly.
509 COUNT is the number of elements in SYMBOLS.
510 Return the number of useful symbols. */
512 static long
513 remove_useless_symbols (asymbol **symbols, long count)
515 asymbol **in_ptr = symbols, **out_ptr = symbols;
517 while (--count >= 0)
519 asymbol *sym = *in_ptr++;
521 if (sym->name == NULL || sym->name[0] == '\0')
522 continue;
523 if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
524 continue;
525 if (bfd_is_und_section (sym->section)
526 || bfd_is_com_section (sym->section))
527 continue;
529 *out_ptr++ = sym;
531 return out_ptr - symbols;
534 /* Sort symbols into value order. */
536 static int
537 compare_symbols (const void *ap, const void *bp)
539 const asymbol *a = * (const asymbol **) ap;
540 const asymbol *b = * (const asymbol **) bp;
541 const char *an;
542 const char *bn;
543 size_t anl;
544 size_t bnl;
545 bfd_boolean af;
546 bfd_boolean bf;
547 flagword aflags;
548 flagword bflags;
550 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
551 return 1;
552 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
553 return -1;
555 if (a->section > b->section)
556 return 1;
557 else if (a->section < b->section)
558 return -1;
560 an = bfd_asymbol_name (a);
561 bn = bfd_asymbol_name (b);
562 anl = strlen (an);
563 bnl = strlen (bn);
565 /* The symbols gnu_compiled and gcc2_compiled convey no real
566 information, so put them after other symbols with the same value. */
567 af = (strstr (an, "gnu_compiled") != NULL
568 || strstr (an, "gcc2_compiled") != NULL);
569 bf = (strstr (bn, "gnu_compiled") != NULL
570 || strstr (bn, "gcc2_compiled") != NULL);
572 if (af && ! bf)
573 return 1;
574 if (! af && bf)
575 return -1;
577 /* We use a heuristic for the file name, to try to sort it after
578 more useful symbols. It may not work on non Unix systems, but it
579 doesn't really matter; the only difference is precisely which
580 symbol names get printed. */
582 #define file_symbol(s, sn, snl) \
583 (((s)->flags & BSF_FILE) != 0 \
584 || ((sn)[(snl) - 2] == '.' \
585 && ((sn)[(snl) - 1] == 'o' \
586 || (sn)[(snl) - 1] == 'a')))
588 af = file_symbol (a, an, anl);
589 bf = file_symbol (b, bn, bnl);
591 if (af && ! bf)
592 return 1;
593 if (! af && bf)
594 return -1;
596 /* Try to sort global symbols before local symbols before function
597 symbols before debugging symbols. */
599 aflags = a->flags;
600 bflags = b->flags;
602 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
604 if ((aflags & BSF_DEBUGGING) != 0)
605 return 1;
606 else
607 return -1;
609 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
611 if ((aflags & BSF_FUNCTION) != 0)
612 return -1;
613 else
614 return 1;
616 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
618 if ((aflags & BSF_LOCAL) != 0)
619 return 1;
620 else
621 return -1;
623 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
625 if ((aflags & BSF_GLOBAL) != 0)
626 return -1;
627 else
628 return 1;
631 /* Symbols that start with '.' might be section names, so sort them
632 after symbols that don't start with '.'. */
633 if (an[0] == '.' && bn[0] != '.')
634 return 1;
635 if (an[0] != '.' && bn[0] == '.')
636 return -1;
638 /* Finally, if we can't distinguish them in any other way, try to
639 get consistent results by sorting the symbols by name. */
640 return strcmp (an, bn);
643 /* Sort relocs into address order. */
645 static int
646 compare_relocs (const void *ap, const void *bp)
648 const arelent *a = * (const arelent **) ap;
649 const arelent *b = * (const arelent **) bp;
651 if (a->address > b->address)
652 return 1;
653 else if (a->address < b->address)
654 return -1;
656 /* So that associated relocations tied to the same address show up
657 in the correct order, we don't do any further sorting. */
658 if (a > b)
659 return 1;
660 else if (a < b)
661 return -1;
662 else
663 return 0;
666 /* Print an address (VMA) to the output stream in INFO.
667 If SKIP_ZEROES is TRUE, omit leading zeroes. */
669 static void
670 objdump_print_value (bfd_vma vma, struct disassemble_info *inf,
671 bfd_boolean skip_zeroes)
673 char buf[30];
674 char *p;
675 struct objdump_disasm_info *aux;
677 aux = (struct objdump_disasm_info *) inf->application_data;
678 bfd_sprintf_vma (aux->abfd, buf, vma);
679 if (! skip_zeroes)
680 p = buf;
681 else
683 for (p = buf; *p == '0'; ++p)
685 if (*p == '\0')
686 --p;
688 (*inf->fprintf_func) (inf->stream, "%s", p);
691 /* Print the name of a symbol. */
693 static void
694 objdump_print_symname (bfd *abfd, struct disassemble_info *inf,
695 asymbol *sym)
697 char *alloc;
698 const char *name;
700 alloc = NULL;
701 name = bfd_asymbol_name (sym);
702 if (do_demangle && name[0] != '\0')
704 /* Demangle the name. */
705 alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
706 if (alloc != NULL)
707 name = alloc;
710 if (inf != NULL)
711 (*inf->fprintf_func) (inf->stream, "%s", name);
712 else
713 printf ("%s", name);
715 if (alloc != NULL)
716 free (alloc);
719 /* Locate a symbol given a bfd and a section (from INFO->application_data),
720 and a VMA. If INFO->application_data->require_sec is TRUE, then always
721 require the symbol to be in the section. Returns NULL if there is no
722 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
723 of the symbol in sorted_syms. */
725 static asymbol *
726 find_symbol_for_address (bfd_vma vma,
727 struct disassemble_info *inf,
728 long *place)
730 /* @@ Would it speed things up to cache the last two symbols returned,
731 and maybe their address ranges? For many processors, only one memory
732 operand can be present at a time, so the 2-entry cache wouldn't be
733 constantly churned by code doing heavy memory accesses. */
735 /* Indices in `sorted_syms'. */
736 long min = 0;
737 long max_count = sorted_symcount;
738 long thisplace;
739 struct objdump_disasm_info *aux;
740 bfd *abfd;
741 asection *sec;
742 unsigned int opb;
743 bfd_boolean want_section;
745 if (sorted_symcount < 1)
746 return NULL;
748 aux = (struct objdump_disasm_info *) inf->application_data;
749 abfd = aux->abfd;
750 sec = aux->sec;
751 opb = inf->octets_per_byte;
753 /* Perform a binary search looking for the closest symbol to the
754 required value. We are searching the range (min, max_count]. */
755 while (min + 1 < max_count)
757 asymbol *sym;
759 thisplace = (max_count + min) / 2;
760 sym = sorted_syms[thisplace];
762 if (bfd_asymbol_value (sym) > vma)
763 max_count = thisplace;
764 else if (bfd_asymbol_value (sym) < vma)
765 min = thisplace;
766 else
768 min = thisplace;
769 break;
773 /* The symbol we want is now in min, the low end of the range we
774 were searching. If there are several symbols with the same
775 value, we want the first one. */
776 thisplace = min;
777 while (thisplace > 0
778 && (bfd_asymbol_value (sorted_syms[thisplace])
779 == bfd_asymbol_value (sorted_syms[thisplace - 1])))
780 --thisplace;
782 /* Prefer a symbol in the current section if we have multple symbols
783 with the same value, as can occur with overlays or zero size
784 sections. */
785 min = thisplace;
786 while (min < max_count
787 && (bfd_asymbol_value (sorted_syms[min])
788 == bfd_asymbol_value (sorted_syms[thisplace])))
790 if (sorted_syms[min]->section == sec
791 && inf->symbol_is_valid (sorted_syms[min], inf))
793 thisplace = min;
795 if (place != NULL)
796 *place = thisplace;
798 return sorted_syms[thisplace];
800 ++min;
803 /* If the file is relocatable, and the symbol could be from this
804 section, prefer a symbol from this section over symbols from
805 others, even if the other symbol's value might be closer.
807 Note that this may be wrong for some symbol references if the
808 sections have overlapping memory ranges, but in that case there's
809 no way to tell what's desired without looking at the relocation
810 table.
812 Also give the target a chance to reject symbols. */
813 want_section = (aux->require_sec
814 || ((abfd->flags & HAS_RELOC) != 0
815 && vma >= bfd_get_section_vma (abfd, sec)
816 && vma < (bfd_get_section_vma (abfd, sec)
817 + bfd_section_size (abfd, sec) / opb)));
818 if ((sorted_syms[thisplace]->section != sec && want_section)
819 || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
821 long i;
822 long newplace = sorted_symcount;
824 for (i = min - 1; i >= 0; i--)
826 if ((sorted_syms[i]->section == sec || !want_section)
827 && inf->symbol_is_valid (sorted_syms[i], inf))
829 if (newplace == sorted_symcount)
830 newplace = i;
832 if (bfd_asymbol_value (sorted_syms[i])
833 != bfd_asymbol_value (sorted_syms[newplace]))
834 break;
836 /* Remember this symbol and keep searching until we reach
837 an earlier address. */
838 newplace = i;
842 if (newplace != sorted_symcount)
843 thisplace = newplace;
844 else
846 /* We didn't find a good symbol with a smaller value.
847 Look for one with a larger value. */
848 for (i = thisplace + 1; i < sorted_symcount; i++)
850 if ((sorted_syms[i]->section == sec || !want_section)
851 && inf->symbol_is_valid (sorted_syms[i], inf))
853 thisplace = i;
854 break;
859 if ((sorted_syms[thisplace]->section != sec && want_section)
860 || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
861 /* There is no suitable symbol. */
862 return NULL;
865 if (place != NULL)
866 *place = thisplace;
868 return sorted_syms[thisplace];
871 /* Print an address and the offset to the nearest symbol. */
873 static void
874 objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym,
875 bfd_vma vma, struct disassemble_info *inf,
876 bfd_boolean skip_zeroes)
878 objdump_print_value (vma, inf, skip_zeroes);
880 if (sym == NULL)
882 bfd_vma secaddr;
884 (*inf->fprintf_func) (inf->stream, " <%s",
885 bfd_get_section_name (abfd, sec));
886 secaddr = bfd_get_section_vma (abfd, sec);
887 if (vma < secaddr)
889 (*inf->fprintf_func) (inf->stream, "-0x");
890 objdump_print_value (secaddr - vma, inf, TRUE);
892 else if (vma > secaddr)
894 (*inf->fprintf_func) (inf->stream, "+0x");
895 objdump_print_value (vma - secaddr, inf, TRUE);
897 (*inf->fprintf_func) (inf->stream, ">");
899 else
901 (*inf->fprintf_func) (inf->stream, " <");
902 objdump_print_symname (abfd, inf, sym);
903 if (bfd_asymbol_value (sym) > vma)
905 (*inf->fprintf_func) (inf->stream, "-0x");
906 objdump_print_value (bfd_asymbol_value (sym) - vma, inf, TRUE);
908 else if (vma > bfd_asymbol_value (sym))
910 (*inf->fprintf_func) (inf->stream, "+0x");
911 objdump_print_value (vma - bfd_asymbol_value (sym), inf, TRUE);
913 (*inf->fprintf_func) (inf->stream, ">");
916 if (display_file_offsets)
917 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
918 (long int)(sec->filepos + (vma - sec->vma)));
921 /* Print an address (VMA), symbolically if possible.
922 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
924 static void
925 objdump_print_addr (bfd_vma vma,
926 struct disassemble_info *inf,
927 bfd_boolean skip_zeroes)
929 struct objdump_disasm_info *aux;
930 asymbol *sym = NULL;
931 bfd_boolean skip_find = FALSE;
933 aux = (struct objdump_disasm_info *) inf->application_data;
935 if (sorted_symcount < 1)
937 (*inf->fprintf_func) (inf->stream, "0x");
938 objdump_print_value (vma, inf, skip_zeroes);
940 if (display_file_offsets)
941 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
942 (long int)(aux->sec->filepos + (vma - aux->sec->vma)));
943 return;
946 if (aux->reloc != NULL
947 && aux->reloc->sym_ptr_ptr != NULL
948 && * aux->reloc->sym_ptr_ptr != NULL)
950 sym = * aux->reloc->sym_ptr_ptr;
952 /* Adjust the vma to the reloc. */
953 vma += bfd_asymbol_value (sym);
955 if (bfd_is_und_section (bfd_get_section (sym)))
956 skip_find = TRUE;
959 if (!skip_find)
960 sym = find_symbol_for_address (vma, inf, NULL);
962 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, inf,
963 skip_zeroes);
966 /* Print VMA to INFO. This function is passed to the disassembler
967 routine. */
969 static void
970 objdump_print_address (bfd_vma vma, struct disassemble_info *inf)
972 objdump_print_addr (vma, inf, ! prefix_addresses);
975 /* Determine if the given address has a symbol associated with it. */
977 static int
978 objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * inf)
980 asymbol * sym;
982 sym = find_symbol_for_address (vma, inf, NULL);
984 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
987 /* Hold the last function name and the last line number we displayed
988 in a disassembly. */
990 static char *prev_functionname;
991 static unsigned int prev_line;
993 /* We keep a list of all files that we have seen when doing a
994 disassembly with source, so that we know how much of the file to
995 display. This can be important for inlined functions. */
997 struct print_file_list
999 struct print_file_list *next;
1000 const char *filename;
1001 const char *modname;
1002 const char *map;
1003 size_t mapsize;
1004 const char **linemap;
1005 unsigned maxline;
1006 unsigned last_line;
1007 int first;
1010 static struct print_file_list *print_files;
1012 /* The number of preceding context lines to show when we start
1013 displaying a file for the first time. */
1015 #define SHOW_PRECEDING_CONTEXT_LINES (5)
1017 /* Read a complete file into memory. */
1019 static const char *
1020 slurp_file (const char *fn, size_t *size)
1022 #ifdef HAVE_MMAP
1023 int ps = getpagesize ();
1024 size_t msize;
1025 #endif
1026 const char *map;
1027 struct stat st;
1028 int fd = open (fn, O_RDONLY | O_BINARY);
1030 if (fd < 0)
1031 return NULL;
1032 if (fstat (fd, &st) < 0)
1033 return NULL;
1034 *size = st.st_size;
1035 #ifdef HAVE_MMAP
1036 msize = (*size + ps - 1) & ~(ps - 1);
1037 map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0);
1038 if (map != (char *)-1L)
1040 close(fd);
1041 return map;
1043 #endif
1044 map = (const char *) malloc (*size);
1045 if (!map || (size_t) read (fd, (char *)map, *size) != *size)
1047 free ((void *)map);
1048 map = NULL;
1050 close (fd);
1051 return map;
1054 #define line_map_decrease 5
1056 /* Precompute array of lines for a mapped file. */
1058 static const char **
1059 index_file (const char *map, size_t size, unsigned int *maxline)
1061 const char *p, *lstart, *end;
1062 int chars_per_line = 45; /* First iteration will use 40. */
1063 unsigned int lineno;
1064 const char **linemap = NULL;
1065 unsigned long line_map_size = 0;
1067 lineno = 0;
1068 lstart = map;
1069 end = map + size;
1071 for (p = map; p < end; p++)
1073 if (*p == '\n')
1075 if (p + 1 < end && p[1] == '\r')
1076 p++;
1078 else if (*p == '\r')
1080 if (p + 1 < end && p[1] == '\n')
1081 p++;
1083 else
1084 continue;
1086 /* End of line found. */
1088 if (linemap == NULL || line_map_size < lineno + 1)
1090 unsigned long newsize;
1092 chars_per_line -= line_map_decrease;
1093 if (chars_per_line <= 1)
1094 chars_per_line = 1;
1095 line_map_size = size / chars_per_line + 1;
1096 if (line_map_size < lineno + 1)
1097 line_map_size = lineno + 1;
1098 newsize = line_map_size * sizeof (char *);
1099 linemap = (const char **) xrealloc (linemap, newsize);
1102 linemap[lineno++] = lstart;
1103 lstart = p + 1;
1106 *maxline = lineno;
1107 return linemap;
1110 /* Tries to open MODNAME, and if successful adds a node to print_files
1111 linked list and returns that node. Returns NULL on failure. */
1113 static struct print_file_list *
1114 try_print_file_open (const char *origname, const char *modname)
1116 struct print_file_list *p;
1118 p = (struct print_file_list *) xmalloc (sizeof (struct print_file_list));
1120 p->map = slurp_file (modname, &p->mapsize);
1121 if (p->map == NULL)
1123 free (p);
1124 return NULL;
1127 p->linemap = index_file (p->map, p->mapsize, &p->maxline);
1128 p->last_line = 0;
1129 p->filename = origname;
1130 p->modname = modname;
1131 p->next = print_files;
1132 p->first = 1;
1133 print_files = p;
1134 return p;
1137 /* If the the source file, as described in the symtab, is not found
1138 try to locate it in one of the paths specified with -I
1139 If found, add location to print_files linked list. */
1141 static struct print_file_list *
1142 update_source_path (const char *filename)
1144 struct print_file_list *p;
1145 const char *fname;
1146 int i;
1148 if (filename == NULL)
1149 return NULL;
1151 p = try_print_file_open (filename, filename);
1152 if (p != NULL)
1153 return p;
1155 if (include_path_count == 0)
1156 return NULL;
1158 /* Get the name of the file. */
1159 fname = strrchr (filename, '/');
1160 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1162 /* We could have a mixed forward/back slash case. */
1163 char *backslash = strrchr (filename, '\\');
1164 if (fname == NULL || (backslash != NULL && backslash > fname))
1165 fname = backslash;
1166 if (fname == NULL && filename[0] != '\0' && filename[1] == ':')
1167 fname = filename + 1;
1169 #endif
1170 if (fname == NULL)
1171 fname = filename;
1172 else
1173 ++fname;
1175 /* If file exists under a new path, we need to add it to the list
1176 so that show_line knows about it. */
1177 for (i = 0; i < include_path_count; i++)
1179 char *modname = concat (include_paths[i], "/", fname, (const char *) 0);
1181 p = try_print_file_open (filename, modname);
1182 if (p)
1183 return p;
1185 free (modname);
1188 return NULL;
1191 /* Print a source file line. */
1193 static void
1194 print_line (struct print_file_list *p, unsigned int linenum)
1196 const char *l;
1197 size_t len;
1199 --linenum;
1200 if (linenum >= p->maxline)
1201 return;
1202 l = p->linemap [linenum];
1203 /* Test fwrite return value to quiet glibc warning. */
1204 len = strcspn (l, "\n\r");
1205 if (len == 0 || fwrite (l, len, 1, stdout) == 1)
1206 putchar ('\n');
1209 /* Print a range of source code lines. */
1211 static void
1212 dump_lines (struct print_file_list *p, unsigned int start, unsigned int end)
1214 if (p->map == NULL)
1215 return;
1216 while (start <= end)
1218 print_line (p, start);
1219 start++;
1223 /* Show the line number, or the source line, in a disassembly
1224 listing. */
1226 static void
1227 show_line (bfd *abfd, asection *section, bfd_vma addr_offset)
1229 const char *filename;
1230 const char *functionname;
1231 unsigned int linenumber;
1232 bfd_boolean reloc;
1234 if (! with_line_numbers && ! with_source_code)
1235 return;
1237 if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
1238 &functionname, &linenumber))
1239 return;
1241 if (filename != NULL && *filename == '\0')
1242 filename = NULL;
1243 if (functionname != NULL && *functionname == '\0')
1244 functionname = NULL;
1246 if (filename
1247 && IS_ABSOLUTE_PATH (filename)
1248 && prefix)
1250 char *path_up;
1251 const char *fname = filename;
1252 char *path = (char *) alloca (prefix_length + PATH_MAX + 1);
1254 if (prefix_length)
1255 memcpy (path, prefix, prefix_length);
1256 path_up = path + prefix_length;
1258 /* Build relocated filename, stripping off leading directories
1259 from the initial filename if requested. */
1260 if (prefix_strip > 0)
1262 int level = 0;
1263 const char *s;
1265 /* Skip selected directory levels. */
1266 for (s = fname + 1; *s != '\0' && level < prefix_strip; s++)
1267 if (IS_DIR_SEPARATOR(*s))
1269 fname = s;
1270 level++;
1274 /* Update complete filename. */
1275 strncpy (path_up, fname, PATH_MAX);
1276 path_up[PATH_MAX] = '\0';
1278 filename = path;
1279 reloc = TRUE;
1281 else
1282 reloc = FALSE;
1284 if (with_line_numbers)
1286 if (functionname != NULL
1287 && (prev_functionname == NULL
1288 || strcmp (functionname, prev_functionname) != 0))
1289 printf ("%s():\n", functionname);
1290 if (linenumber > 0 && linenumber != prev_line)
1291 printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
1294 if (with_source_code
1295 && filename != NULL
1296 && linenumber > 0)
1298 struct print_file_list **pp, *p;
1299 unsigned l;
1301 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1302 if (strcmp ((*pp)->filename, filename) == 0)
1303 break;
1304 p = *pp;
1306 if (p == NULL)
1308 if (reloc)
1309 filename = xstrdup (filename);
1310 p = update_source_path (filename);
1313 if (p != NULL && linenumber != p->last_line)
1315 if (file_start_context && p->first)
1316 l = 1;
1317 else
1319 l = linenumber - SHOW_PRECEDING_CONTEXT_LINES;
1320 if (l >= linenumber)
1321 l = 1;
1322 if (p->last_line >= l && p->last_line <= linenumber)
1323 l = p->last_line + 1;
1325 dump_lines (p, l, linenumber);
1326 p->last_line = linenumber;
1327 p->first = 0;
1331 if (functionname != NULL
1332 && (prev_functionname == NULL
1333 || strcmp (functionname, prev_functionname) != 0))
1335 if (prev_functionname != NULL)
1336 free (prev_functionname);
1337 prev_functionname = (char *) xmalloc (strlen (functionname) + 1);
1338 strcpy (prev_functionname, functionname);
1341 if (linenumber > 0 && linenumber != prev_line)
1342 prev_line = linenumber;
1345 /* Pseudo FILE object for strings. */
1346 typedef struct
1348 char *buffer;
1349 size_t pos;
1350 size_t alloc;
1351 } SFILE;
1353 /* sprintf to a "stream". */
1355 static int ATTRIBUTE_PRINTF_2
1356 objdump_sprintf (SFILE *f, const char *format, ...)
1358 size_t n;
1359 va_list args;
1361 while (1)
1363 size_t space = f->alloc - f->pos;
1365 va_start (args, format);
1366 n = vsnprintf (f->buffer + f->pos, space, format, args);
1367 va_end (args);
1369 if (space > n)
1370 break;
1372 f->alloc = (f->alloc + n) * 2;
1373 f->buffer = (char *) xrealloc (f->buffer, f->alloc);
1375 f->pos += n;
1377 return n;
1380 /* The number of zeroes we want to see before we start skipping them.
1381 The number is arbitrarily chosen. */
1383 #define DEFAULT_SKIP_ZEROES 8
1385 /* The number of zeroes to skip at the end of a section. If the
1386 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1387 SKIP_ZEROES, they will be disassembled. If there are fewer than
1388 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1389 attempt to avoid disassembling zeroes inserted by section
1390 alignment. */
1392 #define DEFAULT_SKIP_ZEROES_AT_END 3
1394 /* Disassemble some data in memory between given values. */
1396 static void
1397 disassemble_bytes (struct disassemble_info * inf,
1398 disassembler_ftype disassemble_fn,
1399 bfd_boolean insns,
1400 bfd_byte * data,
1401 bfd_vma start_offset,
1402 bfd_vma stop_offset,
1403 bfd_vma rel_offset,
1404 arelent *** relppp,
1405 arelent ** relppend)
1407 struct objdump_disasm_info *aux;
1408 asection *section;
1409 int octets_per_line;
1410 bfd_boolean done_dot;
1411 int skip_addr_chars;
1412 bfd_vma addr_offset;
1413 unsigned int opb = inf->octets_per_byte;
1414 unsigned int skip_zeroes = inf->skip_zeroes;
1415 unsigned int skip_zeroes_at_end = inf->skip_zeroes_at_end;
1416 int octets = opb;
1417 SFILE sfile;
1419 aux = (struct objdump_disasm_info *) inf->application_data;
1420 section = aux->sec;
1422 sfile.alloc = 120;
1423 sfile.buffer = (char *) xmalloc (sfile.alloc);
1424 sfile.pos = 0;
1426 if (insn_width)
1427 octets_per_line = insn_width;
1428 else if (insns)
1429 octets_per_line = 4;
1430 else
1431 octets_per_line = 16;
1433 /* Figure out how many characters to skip at the start of an
1434 address, to make the disassembly look nicer. We discard leading
1435 zeroes in chunks of 4, ensuring that there is always a leading
1436 zero remaining. */
1437 skip_addr_chars = 0;
1438 if (! prefix_addresses)
1440 char buf[30];
1442 bfd_sprintf_vma (aux->abfd, buf, section->vma + section->size / opb);
1444 while (buf[skip_addr_chars] == '0')
1445 ++skip_addr_chars;
1447 /* Don't discard zeros on overflow. */
1448 if (buf[skip_addr_chars] == '\0' && section->vma != 0)
1449 skip_addr_chars = 0;
1451 if (skip_addr_chars != 0)
1452 skip_addr_chars = (skip_addr_chars - 1) & -4;
1455 inf->insn_info_valid = 0;
1457 done_dot = FALSE;
1458 addr_offset = start_offset;
1459 while (addr_offset < stop_offset)
1461 bfd_vma z;
1462 bfd_boolean need_nl = FALSE;
1463 int previous_octets;
1465 /* Remember the length of the previous instruction. */
1466 previous_octets = octets;
1467 octets = 0;
1469 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1470 print `...'. */
1471 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1472 if (data[z] != 0)
1473 break;
1474 if (! disassemble_zeroes
1475 && (inf->insn_info_valid == 0
1476 || inf->branch_delay_insns == 0)
1477 && (z - addr_offset * opb >= skip_zeroes
1478 || (z == stop_offset * opb &&
1479 z - addr_offset * opb < skip_zeroes_at_end)))
1481 /* If there are more nonzero octets to follow, we only skip
1482 zeroes in multiples of 4, to try to avoid running over
1483 the start of an instruction which happens to start with
1484 zero. */
1485 if (z != stop_offset * opb)
1486 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1488 octets = z - addr_offset * opb;
1490 /* If we are going to display more data, and we are displaying
1491 file offsets, then tell the user how many zeroes we skip
1492 and the file offset from where we resume dumping. */
1493 if (display_file_offsets && ((addr_offset + (octets / opb)) < stop_offset))
1494 printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
1495 octets / opb,
1496 (unsigned long) (section->filepos
1497 + (addr_offset + (octets / opb))));
1498 else
1499 printf ("\t...\n");
1501 else
1503 char buf[50];
1504 int bpc = 0;
1505 int pb = 0;
1507 done_dot = FALSE;
1509 if (with_line_numbers || with_source_code)
1510 show_line (aux->abfd, section, addr_offset);
1512 if (! prefix_addresses)
1514 char *s;
1516 bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset);
1517 for (s = buf + skip_addr_chars; *s == '0'; s++)
1518 *s = ' ';
1519 if (*s == '\0')
1520 *--s = '0';
1521 printf ("%s:\t", buf + skip_addr_chars);
1523 else
1525 aux->require_sec = TRUE;
1526 objdump_print_address (section->vma + addr_offset, inf);
1527 aux->require_sec = FALSE;
1528 putchar (' ');
1531 if (insns)
1533 sfile.pos = 0;
1534 inf->fprintf_func = (fprintf_ftype) objdump_sprintf;
1535 inf->stream = &sfile;
1536 inf->bytes_per_line = 0;
1537 inf->bytes_per_chunk = 0;
1538 inf->flags = disassemble_all ? DISASSEMBLE_DATA : 0;
1539 if (machine)
1540 inf->flags |= USER_SPECIFIED_MACHINE_TYPE;
1542 if (inf->disassembler_needs_relocs
1543 && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0
1544 && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0
1545 && *relppp < relppend)
1547 bfd_signed_vma distance_to_rel;
1549 distance_to_rel = (**relppp)->address
1550 - (rel_offset + addr_offset);
1552 /* Check to see if the current reloc is associated with
1553 the instruction that we are about to disassemble. */
1554 if (distance_to_rel == 0
1555 /* FIXME: This is wrong. We are trying to catch
1556 relocs that are addressed part way through the
1557 current instruction, as might happen with a packed
1558 VLIW instruction. Unfortunately we do not know the
1559 length of the current instruction since we have not
1560 disassembled it yet. Instead we take a guess based
1561 upon the length of the previous instruction. The
1562 proper solution is to have a new target-specific
1563 disassembler function which just returns the length
1564 of an instruction at a given address without trying
1565 to display its disassembly. */
1566 || (distance_to_rel > 0
1567 && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
1569 inf->flags |= INSN_HAS_RELOC;
1570 aux->reloc = **relppp;
1572 else
1573 aux->reloc = NULL;
1576 octets = (*disassemble_fn) (section->vma + addr_offset, inf);
1577 inf->fprintf_func = (fprintf_ftype) fprintf;
1578 inf->stream = stdout;
1579 if (insn_width == 0 && inf->bytes_per_line != 0)
1580 octets_per_line = inf->bytes_per_line;
1581 if (octets < 0)
1583 if (sfile.pos)
1584 printf ("%s\n", sfile.buffer);
1585 break;
1588 else
1590 bfd_vma j;
1592 octets = octets_per_line;
1593 if (addr_offset + octets / opb > stop_offset)
1594 octets = (stop_offset - addr_offset) * opb;
1596 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1598 if (ISPRINT (data[j]))
1599 buf[j - addr_offset * opb] = data[j];
1600 else
1601 buf[j - addr_offset * opb] = '.';
1603 buf[j - addr_offset * opb] = '\0';
1606 if (prefix_addresses
1607 ? show_raw_insn > 0
1608 : show_raw_insn >= 0)
1610 bfd_vma j;
1612 /* If ! prefix_addresses and ! wide_output, we print
1613 octets_per_line octets per line. */
1614 pb = octets;
1615 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1616 pb = octets_per_line;
1618 if (inf->bytes_per_chunk)
1619 bpc = inf->bytes_per_chunk;
1620 else
1621 bpc = 1;
1623 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1625 int k;
1627 if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
1629 for (k = bpc - 1; k >= 0; k--)
1630 printf ("%02x", (unsigned) data[j + k]);
1631 putchar (' ');
1633 else
1635 for (k = 0; k < bpc; k++)
1636 printf ("%02x", (unsigned) data[j + k]);
1637 putchar (' ');
1641 for (; pb < octets_per_line; pb += bpc)
1643 int k;
1645 for (k = 0; k < bpc; k++)
1646 printf (" ");
1647 putchar (' ');
1650 /* Separate raw data from instruction by extra space. */
1651 if (insns)
1652 putchar ('\t');
1653 else
1654 printf (" ");
1657 if (! insns)
1658 printf ("%s", buf);
1659 else if (sfile.pos)
1660 printf ("%s", sfile.buffer);
1662 if (prefix_addresses
1663 ? show_raw_insn > 0
1664 : show_raw_insn >= 0)
1666 while (pb < octets)
1668 bfd_vma j;
1669 char *s;
1671 putchar ('\n');
1672 j = addr_offset * opb + pb;
1674 bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb);
1675 for (s = buf + skip_addr_chars; *s == '0'; s++)
1676 *s = ' ';
1677 if (*s == '\0')
1678 *--s = '0';
1679 printf ("%s:\t", buf + skip_addr_chars);
1681 pb += octets_per_line;
1682 if (pb > octets)
1683 pb = octets;
1684 for (; j < addr_offset * opb + pb; j += bpc)
1686 int k;
1688 if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
1690 for (k = bpc - 1; k >= 0; k--)
1691 printf ("%02x", (unsigned) data[j + k]);
1692 putchar (' ');
1694 else
1696 for (k = 0; k < bpc; k++)
1697 printf ("%02x", (unsigned) data[j + k]);
1698 putchar (' ');
1704 if (!wide_output)
1705 putchar ('\n');
1706 else
1707 need_nl = TRUE;
1710 while ((*relppp) < relppend
1711 && (**relppp)->address < rel_offset + addr_offset + octets / opb)
1713 if (dump_reloc_info || dump_dynamic_reloc_info)
1715 arelent *q;
1717 q = **relppp;
1719 if (wide_output)
1720 putchar ('\t');
1721 else
1722 printf ("\t\t\t");
1724 objdump_print_value (section->vma - rel_offset + q->address,
1725 inf, TRUE);
1727 if (q->howto == NULL)
1728 printf (": *unknown*\t");
1729 else if (q->howto->name)
1730 printf (": %s\t", q->howto->name);
1731 else
1732 printf (": %d\t", q->howto->type);
1734 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1735 printf ("*unknown*");
1736 else
1738 const char *sym_name;
1740 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1741 if (sym_name != NULL && *sym_name != '\0')
1742 objdump_print_symname (aux->abfd, inf, *q->sym_ptr_ptr);
1743 else
1745 asection *sym_sec;
1747 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1748 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1749 if (sym_name == NULL || *sym_name == '\0')
1750 sym_name = "*unknown*";
1751 printf ("%s", sym_name);
1755 if (q->addend)
1757 printf ("+0x");
1758 objdump_print_value (q->addend, inf, TRUE);
1761 printf ("\n");
1762 need_nl = FALSE;
1764 ++(*relppp);
1767 if (need_nl)
1768 printf ("\n");
1770 addr_offset += octets / opb;
1773 free (sfile.buffer);
1776 static void
1777 disassemble_section (bfd *abfd, asection *section, void *inf)
1779 const struct elf_backend_data * bed;
1780 bfd_vma sign_adjust = 0;
1781 struct disassemble_info * pinfo = (struct disassemble_info *) inf;
1782 struct objdump_disasm_info * paux;
1783 unsigned int opb = pinfo->octets_per_byte;
1784 bfd_byte * data = NULL;
1785 bfd_size_type datasize = 0;
1786 arelent ** rel_pp = NULL;
1787 arelent ** rel_ppstart = NULL;
1788 arelent ** rel_ppend;
1789 unsigned long stop_offset;
1790 asymbol * sym = NULL;
1791 long place = 0;
1792 long rel_count;
1793 bfd_vma rel_offset;
1794 unsigned long addr_offset;
1796 /* Sections that do not contain machine
1797 code are not normally disassembled. */
1798 if (! disassemble_all
1799 && only == NULL
1800 && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
1801 != (SEC_CODE | SEC_HAS_CONTENTS)))
1802 return;
1804 if (! process_section_p (section))
1805 return;
1807 datasize = bfd_get_section_size (section);
1808 if (datasize == 0)
1809 return;
1811 /* Decide which set of relocs to use. Load them if necessary. */
1812 paux = (struct objdump_disasm_info *) pinfo->application_data;
1813 if (paux->dynrelbuf)
1815 rel_pp = paux->dynrelbuf;
1816 rel_count = paux->dynrelcount;
1817 /* Dynamic reloc addresses are absolute, non-dynamic are section
1818 relative. REL_OFFSET specifies the reloc address corresponding
1819 to the start of this section. */
1820 rel_offset = section->vma;
1822 else
1824 rel_count = 0;
1825 rel_pp = NULL;
1826 rel_offset = 0;
1828 if ((section->flags & SEC_RELOC) != 0
1829 && (dump_reloc_info || pinfo->disassembler_needs_relocs))
1831 long relsize;
1833 relsize = bfd_get_reloc_upper_bound (abfd, section);
1834 if (relsize < 0)
1835 bfd_fatal (bfd_get_filename (abfd));
1837 if (relsize > 0)
1839 rel_ppstart = rel_pp = (arelent **) xmalloc (relsize);
1840 rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms);
1841 if (rel_count < 0)
1842 bfd_fatal (bfd_get_filename (abfd));
1844 /* Sort the relocs by address. */
1845 qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs);
1849 rel_ppend = rel_pp + rel_count;
1851 data = (bfd_byte *) xmalloc (datasize);
1853 bfd_get_section_contents (abfd, section, data, 0, datasize);
1855 paux->sec = section;
1856 pinfo->buffer = data;
1857 pinfo->buffer_vma = section->vma;
1858 pinfo->buffer_length = datasize;
1859 pinfo->section = section;
1861 if (start_address == (bfd_vma) -1
1862 || start_address < pinfo->buffer_vma)
1863 addr_offset = 0;
1864 else
1865 addr_offset = start_address - pinfo->buffer_vma;
1867 if (stop_address == (bfd_vma) -1)
1868 stop_offset = datasize / opb;
1869 else
1871 if (stop_address < pinfo->buffer_vma)
1872 stop_offset = 0;
1873 else
1874 stop_offset = stop_address - pinfo->buffer_vma;
1875 if (stop_offset > pinfo->buffer_length / opb)
1876 stop_offset = pinfo->buffer_length / opb;
1879 /* Skip over the relocs belonging to addresses below the
1880 start address. */
1881 while (rel_pp < rel_ppend
1882 && (*rel_pp)->address < rel_offset + addr_offset)
1883 ++rel_pp;
1885 if (addr_offset < stop_offset)
1886 printf (_("\nDisassembly of section %s:\n"), section->name);
1888 /* Find the nearest symbol forwards from our current position. */
1889 paux->require_sec = TRUE;
1890 sym = (asymbol *) find_symbol_for_address (section->vma + addr_offset,
1891 (struct disassemble_info *) inf,
1892 &place);
1893 paux->require_sec = FALSE;
1895 /* PR 9774: If the target used signed addresses then we must make
1896 sure that we sign extend the value that we calculate for 'addr'
1897 in the loop below. */
1898 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
1899 && (bed = get_elf_backend_data (abfd)) != NULL
1900 && bed->sign_extend_vma)
1901 sign_adjust = (bfd_vma) 1 << (bed->s->arch_size - 1);
1903 /* Disassemble a block of instructions up to the address associated with
1904 the symbol we have just found. Then print the symbol and find the
1905 next symbol on. Repeat until we have disassembled the entire section
1906 or we have reached the end of the address range we are interested in. */
1907 while (addr_offset < stop_offset)
1909 bfd_vma addr;
1910 asymbol *nextsym;
1911 unsigned long nextstop_offset;
1912 bfd_boolean insns;
1914 addr = section->vma + addr_offset;
1915 addr = ((addr & ((sign_adjust << 1) - 1)) ^ sign_adjust) - sign_adjust;
1917 if (sym != NULL && bfd_asymbol_value (sym) <= addr)
1919 int x;
1921 for (x = place;
1922 (x < sorted_symcount
1923 && (bfd_asymbol_value (sorted_syms[x]) <= addr));
1924 ++x)
1925 continue;
1927 pinfo->symbols = sorted_syms + place;
1928 pinfo->num_symbols = x - place;
1929 pinfo->symtab_pos = place;
1931 else
1933 pinfo->symbols = NULL;
1934 pinfo->num_symbols = 0;
1935 pinfo->symtab_pos = -1;
1938 if (! prefix_addresses)
1940 pinfo->fprintf_func (pinfo->stream, "\n");
1941 objdump_print_addr_with_sym (abfd, section, sym, addr,
1942 pinfo, FALSE);
1943 pinfo->fprintf_func (pinfo->stream, ":\n");
1946 if (sym != NULL && bfd_asymbol_value (sym) > addr)
1947 nextsym = sym;
1948 else if (sym == NULL)
1949 nextsym = NULL;
1950 else
1952 #define is_valid_next_sym(SYM) \
1953 ((SYM)->section == section \
1954 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
1955 && pinfo->symbol_is_valid (SYM, pinfo))
1957 /* Search forward for the next appropriate symbol in
1958 SECTION. Note that all the symbols are sorted
1959 together into one big array, and that some sections
1960 may have overlapping addresses. */
1961 while (place < sorted_symcount
1962 && ! is_valid_next_sym (sorted_syms [place]))
1963 ++place;
1965 if (place >= sorted_symcount)
1966 nextsym = NULL;
1967 else
1968 nextsym = sorted_syms[place];
1971 if (sym != NULL && bfd_asymbol_value (sym) > addr)
1972 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
1973 else if (nextsym == NULL)
1974 nextstop_offset = stop_offset;
1975 else
1976 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
1978 if (nextstop_offset > stop_offset
1979 || nextstop_offset <= addr_offset)
1980 nextstop_offset = stop_offset;
1982 /* If a symbol is explicitly marked as being an object
1983 rather than a function, just dump the bytes without
1984 disassembling them. */
1985 if (disassemble_all
1986 || sym == NULL
1987 || sym->section != section
1988 || bfd_asymbol_value (sym) > addr
1989 || ((sym->flags & BSF_OBJECT) == 0
1990 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
1991 == NULL)
1992 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
1993 == NULL))
1994 || (sym->flags & BSF_FUNCTION) != 0)
1995 insns = TRUE;
1996 else
1997 insns = FALSE;
1999 disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
2000 addr_offset, nextstop_offset,
2001 rel_offset, &rel_pp, rel_ppend);
2003 addr_offset = nextstop_offset;
2004 sym = nextsym;
2007 free (data);
2009 if (rel_ppstart != NULL)
2010 free (rel_ppstart);
2013 /* Disassemble the contents of an object file. */
2015 static void
2016 disassemble_data (bfd *abfd)
2018 struct disassemble_info disasm_info;
2019 struct objdump_disasm_info aux;
2020 long i;
2022 print_files = NULL;
2023 prev_functionname = NULL;
2024 prev_line = -1;
2026 /* We make a copy of syms to sort. We don't want to sort syms
2027 because that will screw up the relocs. */
2028 sorted_symcount = symcount ? symcount : dynsymcount;
2029 sorted_syms = (asymbol **) xmalloc ((sorted_symcount + synthcount)
2030 * sizeof (asymbol *));
2031 memcpy (sorted_syms, symcount ? syms : dynsyms,
2032 sorted_symcount * sizeof (asymbol *));
2034 sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
2036 for (i = 0; i < synthcount; ++i)
2038 sorted_syms[sorted_symcount] = synthsyms + i;
2039 ++sorted_symcount;
2042 /* Sort the symbols into section and symbol order. */
2043 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
2045 init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
2047 disasm_info.application_data = (void *) &aux;
2048 aux.abfd = abfd;
2049 aux.require_sec = FALSE;
2050 aux.dynrelbuf = NULL;
2051 aux.dynrelcount = 0;
2052 aux.reloc = NULL;
2054 disasm_info.print_address_func = objdump_print_address;
2055 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
2057 if (machine != NULL)
2059 const bfd_arch_info_type *inf = bfd_scan_arch (machine);
2061 if (inf == NULL)
2062 fatal (_("Can't use supplied machine %s"), machine);
2064 abfd->arch_info = inf;
2067 if (endian != BFD_ENDIAN_UNKNOWN)
2069 struct bfd_target *xvec;
2071 xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
2072 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
2073 xvec->byteorder = endian;
2074 abfd->xvec = xvec;
2077 /* Use libopcodes to locate a suitable disassembler. */
2078 aux.disassemble_fn = disassembler (abfd);
2079 if (!aux.disassemble_fn)
2081 non_fatal (_("Can't disassemble for architecture %s\n"),
2082 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
2083 exit_status = 1;
2084 return;
2087 disasm_info.flavour = bfd_get_flavour (abfd);
2088 disasm_info.arch = bfd_get_arch (abfd);
2089 disasm_info.mach = bfd_get_mach (abfd);
2090 disasm_info.disassembler_options = disassembler_options;
2091 disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
2092 disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
2093 disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
2094 disasm_info.disassembler_needs_relocs = FALSE;
2096 if (bfd_big_endian (abfd))
2097 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
2098 else if (bfd_little_endian (abfd))
2099 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
2100 else
2101 /* ??? Aborting here seems too drastic. We could default to big or little
2102 instead. */
2103 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
2105 /* Allow the target to customize the info structure. */
2106 disassemble_init_for_target (& disasm_info);
2108 /* Pre-load the dynamic relocs if we are going
2109 to be dumping them along with the disassembly. */
2110 if (dump_dynamic_reloc_info)
2112 long relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2114 if (relsize < 0)
2115 bfd_fatal (bfd_get_filename (abfd));
2117 if (relsize > 0)
2119 aux.dynrelbuf = (arelent **) xmalloc (relsize);
2120 aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
2121 aux.dynrelbuf,
2122 dynsyms);
2123 if (aux.dynrelcount < 0)
2124 bfd_fatal (bfd_get_filename (abfd));
2126 /* Sort the relocs by address. */
2127 qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
2128 compare_relocs);
2131 disasm_info.symtab = sorted_syms;
2132 disasm_info.symtab_size = sorted_symcount;
2134 bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
2136 if (aux.dynrelbuf != NULL)
2137 free (aux.dynrelbuf);
2138 free (sorted_syms);
2141 static int
2142 load_specific_debug_section (enum dwarf_section_display_enum debug,
2143 asection *sec, void *file)
2145 struct dwarf_section *section = &debug_displays [debug].section;
2146 bfd *abfd = (bfd *) file;
2147 bfd_boolean ret;
2148 int section_is_compressed;
2150 /* If it is already loaded, do nothing. */
2151 if (section->start != NULL)
2152 return 1;
2154 section_is_compressed = section->name == section->compressed_name;
2156 section->address = 0;
2157 section->size = bfd_get_section_size (sec);
2158 section->start = (unsigned char *) xmalloc (section->size);
2160 if (is_relocatable && debug_displays [debug].relocate)
2161 ret = bfd_simple_get_relocated_section_contents (abfd,
2162 sec,
2163 section->start,
2164 syms) != NULL;
2165 else
2166 ret = bfd_get_section_contents (abfd, sec, section->start, 0,
2167 section->size);
2169 if (! ret)
2171 free_debug_section (debug);
2172 printf (_("\nCan't get contents for section '%s'.\n"),
2173 section->name);
2174 return 0;
2177 if (section_is_compressed)
2179 bfd_size_type size = section->size;
2180 if (! bfd_uncompress_section_contents (&section->start, &size))
2182 free_debug_section (debug);
2183 printf (_("\nCan't uncompress section '%s'.\n"), section->name);
2184 return 0;
2186 section->size = size;
2189 return 1;
2193 load_debug_section (enum dwarf_section_display_enum debug, void *file)
2195 struct dwarf_section *section = &debug_displays [debug].section;
2196 bfd *abfd = (bfd *) file;
2197 asection *sec;
2199 /* If it is already loaded, do nothing. */
2200 if (section->start != NULL)
2201 return 1;
2203 /* Locate the debug section. */
2204 sec = bfd_get_section_by_name (abfd, section->uncompressed_name);
2205 if (sec != NULL)
2206 section->name = section->uncompressed_name;
2207 else
2209 sec = bfd_get_section_by_name (abfd, section->compressed_name);
2210 if (sec != NULL)
2211 section->name = section->compressed_name;
2213 if (sec == NULL)
2214 return 0;
2216 return load_specific_debug_section (debug, sec, file);
2219 void
2220 free_debug_section (enum dwarf_section_display_enum debug)
2222 struct dwarf_section *section = &debug_displays [debug].section;
2224 if (section->start == NULL)
2225 return;
2227 free ((char *) section->start);
2228 section->start = NULL;
2229 section->address = 0;
2230 section->size = 0;
2233 static void
2234 dump_dwarf_section (bfd *abfd, asection *section,
2235 void *arg ATTRIBUTE_UNUSED)
2237 const char *name = bfd_get_section_name (abfd, section);
2238 const char *match;
2239 int i;
2241 if (CONST_STRNEQ (name, ".gnu.linkonce.wi."))
2242 match = ".debug_info";
2243 else
2244 match = name;
2246 for (i = 0; i < max; i++)
2247 if ((strcmp (debug_displays [i].section.uncompressed_name, match) == 0
2248 || strcmp (debug_displays [i].section.compressed_name, match) == 0)
2249 && debug_displays [i].enabled != NULL
2250 && *debug_displays [i].enabled)
2252 struct dwarf_section *sec = &debug_displays [i].section;
2254 if (strcmp (sec->uncompressed_name, match) == 0)
2255 sec->name = sec->uncompressed_name;
2256 else
2257 sec->name = sec->compressed_name;
2258 if (load_specific_debug_section ((enum dwarf_section_display_enum) i,
2259 section, abfd))
2261 debug_displays [i].display (sec, abfd);
2263 if (i != info && i != abbrev)
2264 free_debug_section ((enum dwarf_section_display_enum) i);
2266 break;
2270 /* Dump the dwarf debugging information. */
2272 static void
2273 dump_dwarf (bfd *abfd)
2275 is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2277 /* FIXME: bfd_get_arch_size may return -1. We assume that 64bit
2278 targets will return 64. */
2279 eh_addr_size = bfd_get_arch_size (abfd) == 64 ? 8 : 4;
2281 if (bfd_big_endian (abfd))
2282 byte_get = byte_get_big_endian;
2283 else if (bfd_little_endian (abfd))
2284 byte_get = byte_get_little_endian;
2285 else
2286 abort ();
2288 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2290 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2291 init_dwarf_regnames (bed->elf_machine_code);
2294 bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
2296 free_debug_memory ();
2299 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
2300 it. Return NULL on failure. */
2302 static char *
2303 read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
2305 asection *stabsect;
2306 bfd_size_type size;
2307 char *contents;
2309 stabsect = bfd_get_section_by_name (abfd, sect_name);
2310 if (stabsect == NULL)
2312 printf (_("No %s section present\n\n"), sect_name);
2313 return FALSE;
2316 size = bfd_section_size (abfd, stabsect);
2317 contents = (char *) xmalloc (size);
2319 if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
2321 non_fatal (_("Reading %s section of %s failed: %s"),
2322 sect_name, bfd_get_filename (abfd),
2323 bfd_errmsg (bfd_get_error ()));
2324 free (contents);
2325 exit_status = 1;
2326 return NULL;
2329 *size_ptr = size;
2331 return contents;
2334 /* Stabs entries use a 12 byte format:
2335 4 byte string table index
2336 1 byte stab type
2337 1 byte stab other field
2338 2 byte stab desc field
2339 4 byte stab value
2340 FIXME: This will have to change for a 64 bit object format. */
2342 #define STRDXOFF (0)
2343 #define TYPEOFF (4)
2344 #define OTHEROFF (5)
2345 #define DESCOFF (6)
2346 #define VALOFF (8)
2347 #define STABSIZE (12)
2349 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
2350 using string table section STRSECT_NAME (in `strtab'). */
2352 static void
2353 print_section_stabs (bfd *abfd,
2354 const char *stabsect_name,
2355 unsigned *string_offset_ptr)
2357 int i;
2358 unsigned file_string_table_offset = 0;
2359 unsigned next_file_string_table_offset = *string_offset_ptr;
2360 bfd_byte *stabp, *stabs_end;
2362 stabp = stabs;
2363 stabs_end = stabp + stab_size;
2365 printf (_("Contents of %s section:\n\n"), stabsect_name);
2366 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
2368 /* Loop through all symbols and print them.
2370 We start the index at -1 because there is a dummy symbol on
2371 the front of stabs-in-{coff,elf} sections that supplies sizes. */
2372 for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
2374 const char *name;
2375 unsigned long strx;
2376 unsigned char type, other;
2377 unsigned short desc;
2378 bfd_vma value;
2380 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
2381 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
2382 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
2383 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
2384 value = bfd_h_get_32 (abfd, stabp + VALOFF);
2386 printf ("\n%-6d ", i);
2387 /* Either print the stab name, or, if unnamed, print its number
2388 again (makes consistent formatting for tools like awk). */
2389 name = bfd_get_stab_name (type);
2390 if (name != NULL)
2391 printf ("%-6s", name);
2392 else if (type == N_UNDF)
2393 printf ("HdrSym");
2394 else
2395 printf ("%-6d", type);
2396 printf (" %-6d %-6d ", other, desc);
2397 bfd_printf_vma (abfd, value);
2398 printf (" %-6lu", strx);
2400 /* Symbols with type == 0 (N_UNDF) specify the length of the
2401 string table associated with this file. We use that info
2402 to know how to relocate the *next* file's string table indices. */
2403 if (type == N_UNDF)
2405 file_string_table_offset = next_file_string_table_offset;
2406 next_file_string_table_offset += value;
2408 else
2410 /* Using the (possibly updated) string table offset, print the
2411 string (if any) associated with this symbol. */
2412 if ((strx + file_string_table_offset) < stabstr_size)
2413 printf (" %s", &strtab[strx + file_string_table_offset]);
2414 else
2415 printf (" *");
2418 printf ("\n\n");
2419 *string_offset_ptr = next_file_string_table_offset;
2422 typedef struct
2424 const char * section_name;
2425 const char * string_section_name;
2426 unsigned string_offset;
2428 stab_section_names;
2430 static void
2431 find_stabs_section (bfd *abfd, asection *section, void *names)
2433 int len;
2434 stab_section_names * sought = (stab_section_names *) names;
2436 /* Check for section names for which stabsect_name is a prefix, to
2437 handle .stab.N, etc. */
2438 len = strlen (sought->section_name);
2440 /* If the prefix matches, and the files section name ends with a
2441 nul or a digit, then we match. I.e., we want either an exact
2442 match or a section followed by a number. */
2443 if (strncmp (sought->section_name, section->name, len) == 0
2444 && (section->name[len] == 0
2445 || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
2447 if (strtab == NULL)
2448 strtab = read_section_stabs (abfd, sought->string_section_name,
2449 &stabstr_size);
2451 if (strtab)
2453 stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
2454 &stab_size);
2455 if (stabs)
2456 print_section_stabs (abfd, section->name, &sought->string_offset);
2461 static void
2462 dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name)
2464 stab_section_names s;
2466 s.section_name = stabsect_name;
2467 s.string_section_name = strsect_name;
2468 s.string_offset = 0;
2470 bfd_map_over_sections (abfd, find_stabs_section, & s);
2472 free (strtab);
2473 strtab = NULL;
2476 /* Dump the any sections containing stabs debugging information. */
2478 static void
2479 dump_stabs (bfd *abfd)
2481 dump_stabs_section (abfd, ".stab", ".stabstr");
2482 dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr");
2483 dump_stabs_section (abfd, ".stab.index", ".stab.indexstr");
2485 /* For Darwin. */
2486 dump_stabs_section (abfd, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr");
2488 dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
2491 static void
2492 dump_bfd_header (bfd *abfd)
2494 char *comma = "";
2496 printf (_("architecture: %s, "),
2497 bfd_printable_arch_mach (bfd_get_arch (abfd),
2498 bfd_get_mach (abfd)));
2499 printf (_("flags 0x%08x:\n"), abfd->flags);
2501 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2502 PF (HAS_RELOC, "HAS_RELOC");
2503 PF (EXEC_P, "EXEC_P");
2504 PF (HAS_LINENO, "HAS_LINENO");
2505 PF (HAS_DEBUG, "HAS_DEBUG");
2506 PF (HAS_SYMS, "HAS_SYMS");
2507 PF (HAS_LOCALS, "HAS_LOCALS");
2508 PF (DYNAMIC, "DYNAMIC");
2509 PF (WP_TEXT, "WP_TEXT");
2510 PF (D_PAGED, "D_PAGED");
2511 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
2512 PF (HAS_LOAD_PAGE, "HAS_LOAD_PAGE");
2513 printf (_("\nstart address 0x"));
2514 bfd_printf_vma (abfd, abfd->start_address);
2515 printf ("\n");
2519 static void
2520 dump_bfd_private_header (bfd *abfd)
2522 bfd_print_private_bfd_data (abfd, stdout);
2526 /* Display a section in hexadecimal format with associated characters.
2527 Each line prefixed by the zero padded address. */
2529 static void
2530 dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
2532 bfd_byte *data = 0;
2533 bfd_size_type datasize;
2534 bfd_size_type addr_offset;
2535 bfd_size_type start_offset;
2536 bfd_size_type stop_offset;
2537 unsigned int opb = bfd_octets_per_byte (abfd);
2538 /* Bytes per line. */
2539 const int onaline = 16;
2540 char buf[64];
2541 int count;
2542 int width;
2544 if ((section->flags & SEC_HAS_CONTENTS) == 0)
2545 return;
2547 if (! process_section_p (section))
2548 return;
2550 if ((datasize = bfd_section_size (abfd, section)) == 0)
2551 return;
2553 /* Compute the address range to display. */
2554 if (start_address == (bfd_vma) -1
2555 || start_address < section->vma)
2556 start_offset = 0;
2557 else
2558 start_offset = start_address - section->vma;
2560 if (stop_address == (bfd_vma) -1)
2561 stop_offset = datasize / opb;
2562 else
2564 if (stop_address < section->vma)
2565 stop_offset = 0;
2566 else
2567 stop_offset = stop_address - section->vma;
2569 if (stop_offset > datasize / opb)
2570 stop_offset = datasize / opb;
2573 if (start_offset >= stop_offset)
2574 return;
2576 printf (_("Contents of section %s:"), section->name);
2577 if (display_file_offsets)
2578 printf (_(" (Starting at file offset: 0x%lx)"),
2579 (unsigned long) (section->filepos + start_offset));
2580 printf ("\n");
2582 data = (bfd_byte *) xmalloc (datasize);
2584 bfd_get_section_contents (abfd, section, data, 0, datasize);
2586 width = 4;
2588 bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
2589 if (strlen (buf) >= sizeof (buf))
2590 abort ();
2592 count = 0;
2593 while (buf[count] == '0' && buf[count+1] != '\0')
2594 count++;
2595 count = strlen (buf) - count;
2596 if (count > width)
2597 width = count;
2599 bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
2600 if (strlen (buf) >= sizeof (buf))
2601 abort ();
2603 count = 0;
2604 while (buf[count] == '0' && buf[count+1] != '\0')
2605 count++;
2606 count = strlen (buf) - count;
2607 if (count > width)
2608 width = count;
2610 for (addr_offset = start_offset;
2611 addr_offset < stop_offset; addr_offset += onaline / opb)
2613 bfd_size_type j;
2615 bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
2616 count = strlen (buf);
2617 if ((size_t) count >= sizeof (buf))
2618 abort ();
2620 putchar (' ');
2621 while (count < width)
2623 putchar ('0');
2624 count++;
2626 fputs (buf + count - width, stdout);
2627 putchar (' ');
2629 for (j = addr_offset * opb;
2630 j < addr_offset * opb + onaline; j++)
2632 if (j < stop_offset * opb)
2633 printf ("%02x", (unsigned) (data[j]));
2634 else
2635 printf (" ");
2636 if ((j & 3) == 3)
2637 printf (" ");
2640 printf (" ");
2641 for (j = addr_offset * opb;
2642 j < addr_offset * opb + onaline; j++)
2644 if (j >= stop_offset * opb)
2645 printf (" ");
2646 else
2647 printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
2649 putchar ('\n');
2651 free (data);
2654 /* Actually display the various requested regions. */
2656 static void
2657 dump_data (bfd *abfd)
2659 bfd_map_over_sections (abfd, dump_section, NULL);
2662 /* Should perhaps share code and display with nm? */
2664 static void
2665 dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
2667 asymbol **current;
2668 long max_count;
2669 long count;
2671 if (dynamic)
2673 current = dynsyms;
2674 max_count = dynsymcount;
2675 printf ("DYNAMIC SYMBOL TABLE:\n");
2677 else
2679 current = syms;
2680 max_count = symcount;
2681 printf ("SYMBOL TABLE:\n");
2684 if (max_count == 0)
2685 printf (_("no symbols\n"));
2687 for (count = 0; count < max_count; count++)
2689 bfd *cur_bfd;
2691 if (*current == NULL)
2692 printf (_("no information for symbol number %ld\n"), count);
2694 else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
2695 printf (_("could not determine the type of symbol number %ld\n"),
2696 count);
2698 else if (process_section_p ((* current)->section)
2699 && (dump_special_syms
2700 || !bfd_is_target_special_symbol (cur_bfd, *current)))
2702 const char *name = (*current)->name;
2704 if (do_demangle && name != NULL && *name != '\0')
2706 char *alloc;
2708 /* If we want to demangle the name, we demangle it
2709 here, and temporarily clobber it while calling
2710 bfd_print_symbol. FIXME: This is a gross hack. */
2711 alloc = bfd_demangle (cur_bfd, name, DMGL_ANSI | DMGL_PARAMS);
2712 if (alloc != NULL)
2713 (*current)->name = alloc;
2714 bfd_print_symbol (cur_bfd, stdout, *current,
2715 bfd_print_symbol_all);
2716 if (alloc != NULL)
2718 (*current)->name = name;
2719 free (alloc);
2722 else
2723 bfd_print_symbol (cur_bfd, stdout, *current,
2724 bfd_print_symbol_all);
2725 printf ("\n");
2728 current++;
2730 printf ("\n\n");
2733 static void
2734 dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount)
2736 arelent **p;
2737 char *last_filename, *last_functionname;
2738 unsigned int last_line;
2740 /* Get column headers lined up reasonably. */
2742 static int width;
2744 if (width == 0)
2746 char buf[30];
2748 bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
2749 width = strlen (buf) - 7;
2751 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2754 last_filename = NULL;
2755 last_functionname = NULL;
2756 last_line = 0;
2758 for (p = relpp; relcount && *p != NULL; p++, relcount--)
2760 arelent *q = *p;
2761 const char *filename, *functionname;
2762 unsigned int linenumber;
2763 const char *sym_name;
2764 const char *section_name;
2766 if (start_address != (bfd_vma) -1
2767 && q->address < start_address)
2768 continue;
2769 if (stop_address != (bfd_vma) -1
2770 && q->address > stop_address)
2771 continue;
2773 if (with_line_numbers
2774 && sec != NULL
2775 && bfd_find_nearest_line (abfd, sec, syms, q->address,
2776 &filename, &functionname, &linenumber))
2778 if (functionname != NULL
2779 && (last_functionname == NULL
2780 || strcmp (functionname, last_functionname) != 0))
2782 printf ("%s():\n", functionname);
2783 if (last_functionname != NULL)
2784 free (last_functionname);
2785 last_functionname = xstrdup (functionname);
2788 if (linenumber > 0
2789 && (linenumber != last_line
2790 || (filename != NULL
2791 && last_filename != NULL
2792 && strcmp (filename, last_filename) != 0)))
2794 printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
2795 last_line = linenumber;
2796 if (last_filename != NULL)
2797 free (last_filename);
2798 if (filename == NULL)
2799 last_filename = NULL;
2800 else
2801 last_filename = xstrdup (filename);
2805 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2807 sym_name = (*(q->sym_ptr_ptr))->name;
2808 section_name = (*(q->sym_ptr_ptr))->section->name;
2810 else
2812 sym_name = NULL;
2813 section_name = NULL;
2816 bfd_printf_vma (abfd, q->address);
2817 if (q->howto == NULL)
2818 printf (" *unknown* ");
2819 else if (q->howto->name)
2820 printf (" %-16s ", q->howto->name);
2821 else
2822 printf (" %-16d ", q->howto->type);
2824 if (sym_name)
2826 objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
2828 else
2830 if (section_name == NULL)
2831 section_name = "*unknown*";
2832 printf ("[%s]", section_name);
2835 if (q->addend)
2837 printf ("+0x");
2838 bfd_printf_vma (abfd, q->addend);
2841 printf ("\n");
2845 static void
2846 dump_relocs_in_section (bfd *abfd,
2847 asection *section,
2848 void *dummy ATTRIBUTE_UNUSED)
2850 arelent **relpp;
2851 long relcount;
2852 long relsize;
2854 if ( bfd_is_abs_section (section)
2855 || bfd_is_und_section (section)
2856 || bfd_is_com_section (section)
2857 || (! process_section_p (section))
2858 || ((section->flags & SEC_RELOC) == 0))
2859 return;
2861 relsize = bfd_get_reloc_upper_bound (abfd, section);
2862 if (relsize < 0)
2863 bfd_fatal (bfd_get_filename (abfd));
2865 printf ("RELOCATION RECORDS FOR [%s]:", section->name);
2867 if (relsize == 0)
2869 printf (" (none)\n\n");
2870 return;
2873 relpp = (arelent **) xmalloc (relsize);
2874 relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
2876 if (relcount < 0)
2877 bfd_fatal (bfd_get_filename (abfd));
2878 else if (relcount == 0)
2879 printf (" (none)\n\n");
2880 else
2882 printf ("\n");
2883 dump_reloc_set (abfd, section, relpp, relcount);
2884 printf ("\n\n");
2886 free (relpp);
2889 static void
2890 dump_relocs (bfd *abfd)
2892 bfd_map_over_sections (abfd, dump_relocs_in_section, NULL);
2895 static void
2896 dump_dynamic_relocs (bfd *abfd)
2898 long relsize;
2899 arelent **relpp;
2900 long relcount;
2902 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2903 if (relsize < 0)
2904 bfd_fatal (bfd_get_filename (abfd));
2906 printf ("DYNAMIC RELOCATION RECORDS");
2908 if (relsize == 0)
2909 printf (" (none)\n\n");
2910 else
2912 relpp = (arelent **) xmalloc (relsize);
2913 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
2915 if (relcount < 0)
2916 bfd_fatal (bfd_get_filename (abfd));
2917 else if (relcount == 0)
2918 printf (" (none)\n\n");
2919 else
2921 printf ("\n");
2922 dump_reloc_set (abfd, NULL, relpp, relcount);
2923 printf ("\n\n");
2925 free (relpp);
2929 /* Creates a table of paths, to search for source files. */
2931 static void
2932 add_include_path (const char *path)
2934 if (path[0] == 0)
2935 return;
2936 include_path_count++;
2937 include_paths = (const char **)
2938 xrealloc (include_paths, include_path_count * sizeof (*include_paths));
2939 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2940 if (path[1] == ':' && path[2] == 0)
2941 path = concat (path, ".", (const char *) 0);
2942 #endif
2943 include_paths[include_path_count - 1] = path;
2946 static void
2947 adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
2948 asection *section,
2949 void *arg)
2951 if ((section->flags & SEC_DEBUGGING) == 0)
2953 bfd_boolean *has_reloc_p = (bfd_boolean *) arg;
2954 section->vma += adjust_section_vma;
2955 if (*has_reloc_p)
2956 section->lma += adjust_section_vma;
2960 /* Dump selected contents of ABFD. */
2962 static void
2963 dump_bfd (bfd *abfd)
2965 /* If we are adjusting section VMA's, change them all now. Changing
2966 the BFD information is a hack. However, we must do it, or
2967 bfd_find_nearest_line will not do the right thing. */
2968 if (adjust_section_vma != 0)
2970 bfd_boolean has_reloc = (abfd->flags & HAS_RELOC);
2971 bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
2974 if (! dump_debugging_tags)
2975 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
2976 abfd->xvec->name);
2977 if (dump_ar_hdrs)
2978 print_arelt_descr (stdout, abfd, TRUE);
2979 if (dump_file_header)
2980 dump_bfd_header (abfd);
2981 if (dump_private_headers)
2982 dump_bfd_private_header (abfd);
2983 if (! dump_debugging_tags)
2984 putchar ('\n');
2985 if (dump_section_headers)
2986 dump_headers (abfd);
2988 if (dump_symtab
2989 || dump_reloc_info
2990 || disassemble
2991 || dump_debugging
2992 || dump_dwarf_section_info)
2993 syms = slurp_symtab (abfd);
2994 if (dump_dynamic_symtab || dump_dynamic_reloc_info
2995 || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
2996 dynsyms = slurp_dynamic_symtab (abfd);
2997 if (disassemble)
2999 synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
3000 dynsymcount, dynsyms, &synthsyms);
3001 if (synthcount < 0)
3002 synthcount = 0;
3005 if (dump_symtab)
3006 dump_symbols (abfd, FALSE);
3007 if (dump_dynamic_symtab)
3008 dump_symbols (abfd, TRUE);
3009 if (dump_dwarf_section_info)
3010 dump_dwarf (abfd);
3011 if (dump_stab_section_info)
3012 dump_stabs (abfd);
3013 if (dump_reloc_info && ! disassemble)
3014 dump_relocs (abfd);
3015 if (dump_dynamic_reloc_info && ! disassemble)
3016 dump_dynamic_relocs (abfd);
3017 if (dump_section_contents)
3018 dump_data (abfd);
3019 if (disassemble)
3020 disassemble_data (abfd);
3022 if (dump_debugging)
3024 void *dhandle;
3026 dhandle = read_debugging_info (abfd, syms, symcount, TRUE);
3027 if (dhandle != NULL)
3029 if (!print_debugging_info (stdout, dhandle, abfd, syms,
3030 bfd_demangle,
3031 dump_debugging_tags ? TRUE : FALSE))
3033 non_fatal (_("%s: printing debugging information failed"),
3034 bfd_get_filename (abfd));
3035 exit_status = 1;
3038 /* PR 6483: If there was no STABS or IEEE debug
3039 info in the file, try DWARF instead. */
3040 else if (! dump_dwarf_section_info)
3042 dump_dwarf (abfd);
3046 if (syms)
3048 free (syms);
3049 syms = NULL;
3052 if (dynsyms)
3054 free (dynsyms);
3055 dynsyms = NULL;
3058 if (synthsyms)
3060 free (synthsyms);
3061 synthsyms = NULL;
3064 symcount = 0;
3065 dynsymcount = 0;
3066 synthcount = 0;
3069 static void
3070 display_bfd (bfd *abfd)
3072 char **matching;
3074 if (bfd_check_format_matches (abfd, bfd_object, &matching))
3076 dump_bfd (abfd);
3077 return;
3080 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3082 nonfatal (bfd_get_filename (abfd));
3083 list_matching_formats (matching);
3084 free (matching);
3085 return;
3088 if (bfd_get_error () != bfd_error_file_not_recognized)
3090 nonfatal (bfd_get_filename (abfd));
3091 return;
3094 if (bfd_check_format_matches (abfd, bfd_core, &matching))
3096 dump_bfd (abfd);
3097 return;
3100 nonfatal (bfd_get_filename (abfd));
3102 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3104 list_matching_formats (matching);
3105 free (matching);
3109 static void
3110 display_file (char *filename, char *target)
3112 bfd *file;
3113 bfd *arfile = NULL;
3115 if (get_file_size (filename) < 1)
3117 exit_status = 1;
3118 return;
3121 file = bfd_openr (filename, target);
3122 if (file == NULL)
3124 nonfatal (filename);
3125 return;
3128 /* If the file is an archive, process all of its elements. */
3129 if (bfd_check_format (file, bfd_archive))
3131 bfd *last_arfile = NULL;
3133 printf (_("In archive %s:\n"), bfd_get_filename (file));
3134 for (;;)
3136 bfd_set_error (bfd_error_no_error);
3138 arfile = bfd_openr_next_archived_file (file, arfile);
3139 if (arfile == NULL)
3141 if (bfd_get_error () != bfd_error_no_more_archived_files)
3142 nonfatal (bfd_get_filename (file));
3143 break;
3146 display_bfd (arfile);
3148 if (last_arfile != NULL)
3149 bfd_close (last_arfile);
3150 last_arfile = arfile;
3153 if (last_arfile != NULL)
3154 bfd_close (last_arfile);
3156 else
3157 display_bfd (file);
3159 bfd_close (file);
3163 main (int argc, char **argv)
3165 int c;
3166 char *target = default_target;
3167 bfd_boolean seenflag = FALSE;
3169 #if defined (HAVE_SETLOCALE)
3170 #if defined (HAVE_LC_MESSAGES)
3171 setlocale (LC_MESSAGES, "");
3172 #endif
3173 setlocale (LC_CTYPE, "");
3174 #endif
3176 bindtextdomain (PACKAGE, LOCALEDIR);
3177 textdomain (PACKAGE);
3179 program_name = *argv;
3180 xmalloc_set_program_name (program_name);
3182 START_PROGRESS (program_name, 0);
3184 expandargv (&argc, &argv);
3186 bfd_init ();
3187 set_default_bfd_target ();
3189 while ((c = getopt_long (argc, argv,
3190 "pib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::",
3191 long_options, (int *) 0))
3192 != EOF)
3194 switch (c)
3196 case 0:
3197 break; /* We've been given a long option. */
3198 case 'm':
3199 machine = optarg;
3200 break;
3201 case 'M':
3202 if (disassembler_options)
3203 /* Ignore potential memory leak for now. */
3204 disassembler_options = concat (disassembler_options, ",",
3205 optarg, (const char *) NULL);
3206 else
3207 disassembler_options = optarg;
3208 break;
3209 case 'j':
3210 if (only_used == only_size)
3212 only_size += 8;
3213 only = (char **) xrealloc (only, only_size * sizeof (char *));
3215 only [only_used++] = optarg;
3216 break;
3217 case 'F':
3218 display_file_offsets = TRUE;
3219 break;
3220 case 'l':
3221 with_line_numbers = TRUE;
3222 break;
3223 case 'b':
3224 target = optarg;
3225 break;
3226 case 'C':
3227 do_demangle = TRUE;
3228 if (optarg != NULL)
3230 enum demangling_styles style;
3232 style = cplus_demangle_name_to_style (optarg);
3233 if (style == unknown_demangling)
3234 fatal (_("unknown demangling style `%s'"),
3235 optarg);
3237 cplus_demangle_set_style (style);
3239 break;
3240 case 'w':
3241 wide_output = TRUE;
3242 break;
3243 case OPTION_ADJUST_VMA:
3244 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
3245 break;
3246 case OPTION_START_ADDRESS:
3247 start_address = parse_vma (optarg, "--start-address");
3248 if ((stop_address != (bfd_vma) -1) && stop_address <= start_address)
3249 fatal (_("error: the start address should be before the end address"));
3250 break;
3251 case OPTION_STOP_ADDRESS:
3252 stop_address = parse_vma (optarg, "--stop-address");
3253 if ((start_address != (bfd_vma) -1) && stop_address <= start_address)
3254 fatal (_("error: the stop address should be after the start address"));
3255 break;
3256 case OPTION_PREFIX:
3257 prefix = optarg;
3258 prefix_length = strlen (prefix);
3259 /* Remove an unnecessary trailing '/' */
3260 while (IS_DIR_SEPARATOR (prefix[prefix_length - 1]))
3261 prefix_length--;
3262 break;
3263 case OPTION_PREFIX_STRIP:
3264 prefix_strip = atoi (optarg);
3265 if (prefix_strip < 0)
3266 fatal (_("error: prefix strip must be non-negative"));
3267 break;
3268 case OPTION_INSN_WIDTH:
3269 insn_width = strtoul (optarg, NULL, 0);
3270 if (insn_width <= 0)
3271 fatal (_("error: instruction width must be positive"));
3272 break;
3273 case 'E':
3274 if (strcmp (optarg, "B") == 0)
3275 endian = BFD_ENDIAN_BIG;
3276 else if (strcmp (optarg, "L") == 0)
3277 endian = BFD_ENDIAN_LITTLE;
3278 else
3280 non_fatal (_("unrecognized -E option"));
3281 usage (stderr, 1);
3283 break;
3284 case OPTION_ENDIAN:
3285 if (strncmp (optarg, "big", strlen (optarg)) == 0)
3286 endian = BFD_ENDIAN_BIG;
3287 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
3288 endian = BFD_ENDIAN_LITTLE;
3289 else
3291 non_fatal (_("unrecognized --endian type `%s'"), optarg);
3292 usage (stderr, 1);
3294 break;
3296 case 'f':
3297 dump_file_header = TRUE;
3298 seenflag = TRUE;
3299 break;
3300 case 'i':
3301 formats_info = TRUE;
3302 seenflag = TRUE;
3303 break;
3304 case 'I':
3305 add_include_path (optarg);
3306 break;
3307 case 'p':
3308 dump_private_headers = TRUE;
3309 seenflag = TRUE;
3310 break;
3311 case 'x':
3312 dump_private_headers = TRUE;
3313 dump_symtab = TRUE;
3314 dump_reloc_info = TRUE;
3315 dump_file_header = TRUE;
3316 dump_ar_hdrs = TRUE;
3317 dump_section_headers = TRUE;
3318 seenflag = TRUE;
3319 break;
3320 case 't':
3321 dump_symtab = TRUE;
3322 seenflag = TRUE;
3323 break;
3324 case 'T':
3325 dump_dynamic_symtab = TRUE;
3326 seenflag = TRUE;
3327 break;
3328 case 'd':
3329 disassemble = TRUE;
3330 seenflag = TRUE;
3331 break;
3332 case 'z':
3333 disassemble_zeroes = TRUE;
3334 break;
3335 case 'D':
3336 disassemble = TRUE;
3337 disassemble_all = TRUE;
3338 seenflag = TRUE;
3339 break;
3340 case 'S':
3341 disassemble = TRUE;
3342 with_source_code = TRUE;
3343 seenflag = TRUE;
3344 break;
3345 case 'g':
3346 dump_debugging = 1;
3347 seenflag = TRUE;
3348 break;
3349 case 'e':
3350 dump_debugging = 1;
3351 dump_debugging_tags = 1;
3352 do_demangle = TRUE;
3353 seenflag = TRUE;
3354 break;
3355 case 'W':
3356 dump_dwarf_section_info = TRUE;
3357 seenflag = TRUE;
3358 if (optarg)
3359 dwarf_select_sections_by_letters (optarg);
3360 else
3361 dwarf_select_sections_all ();
3362 break;
3363 case OPTION_DWARF:
3364 dump_dwarf_section_info = TRUE;
3365 seenflag = TRUE;
3366 if (optarg)
3367 dwarf_select_sections_by_names (optarg);
3368 else
3369 dwarf_select_sections_all ();
3370 break;
3371 case 'G':
3372 dump_stab_section_info = TRUE;
3373 seenflag = TRUE;
3374 break;
3375 case 's':
3376 dump_section_contents = TRUE;
3377 seenflag = TRUE;
3378 break;
3379 case 'r':
3380 dump_reloc_info = TRUE;
3381 seenflag = TRUE;
3382 break;
3383 case 'R':
3384 dump_dynamic_reloc_info = TRUE;
3385 seenflag = TRUE;
3386 break;
3387 case 'a':
3388 dump_ar_hdrs = TRUE;
3389 seenflag = TRUE;
3390 break;
3391 case 'h':
3392 dump_section_headers = TRUE;
3393 seenflag = TRUE;
3394 break;
3395 case 'H':
3396 usage (stdout, 0);
3397 seenflag = TRUE;
3398 case 'v':
3399 case 'V':
3400 show_version = TRUE;
3401 seenflag = TRUE;
3402 break;
3404 default:
3405 usage (stderr, 1);
3409 if (show_version)
3410 print_version ("objdump");
3412 if (!seenflag)
3413 usage (stderr, 2);
3415 if (formats_info)
3416 exit_status = display_info ();
3417 else
3419 if (optind == argc)
3420 display_file ("a.out", target);
3421 else
3422 for (; optind < argc;)
3423 display_file (argv[optind++], target);
3426 END_PROGRESS (program_name);
3428 return exit_status;