opcodes/gas: blackfin: handle more ASTAT flags
[binutils.git] / binutils / objdump.c
blob8e7d24d2900c05661581db72426e055699d1f63c
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, 2010
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 /* A structure to record the sections mentioned in -j switches. */
121 struct only
123 const char * name; /* The name of the section. */
124 bfd_boolean seen; /* A flag to indicate that the section has been found in one or more input files. */
125 struct only * next; /* Pointer to the next structure in the list. */
127 /* Pointer to an array of 'only' structures.
128 This pointer is NULL if the -j switch has not been used. */
129 static struct only * only_list = NULL;
131 /* Variables for handling include file path table. */
132 static const char **include_paths;
133 static int include_path_count;
135 /* Extra info to pass to the section disassembler and address printing
136 function. */
137 struct objdump_disasm_info
139 bfd * abfd;
140 asection * sec;
141 bfd_boolean require_sec;
142 arelent ** dynrelbuf;
143 long dynrelcount;
144 disassembler_ftype disassemble_fn;
145 arelent * reloc;
148 /* Architecture to disassemble for, or default if NULL. */
149 static char *machine = NULL;
151 /* Target specific options to the disassembler. */
152 static char *disassembler_options = NULL;
154 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
155 static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
157 /* The symbol table. */
158 static asymbol **syms;
160 /* Number of symbols in `syms'. */
161 static long symcount = 0;
163 /* The sorted symbol table. */
164 static asymbol **sorted_syms;
166 /* Number of symbols in `sorted_syms'. */
167 static long sorted_symcount = 0;
169 /* The dynamic symbol table. */
170 static asymbol **dynsyms;
172 /* The synthetic symbol table. */
173 static asymbol *synthsyms;
174 static long synthcount = 0;
176 /* Number of symbols in `dynsyms'. */
177 static long dynsymcount = 0;
179 static bfd_byte *stabs;
180 static bfd_size_type stab_size;
182 static char *strtab;
183 static bfd_size_type stabstr_size;
185 static bfd_boolean is_relocatable = FALSE;
187 static void
188 usage (FILE *stream, int status)
190 fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name);
191 fprintf (stream, _(" Display information from object <file(s)>.\n"));
192 fprintf (stream, _(" At least one of the following switches must be given:\n"));
193 fprintf (stream, _("\
194 -a, --archive-headers Display archive header information\n\
195 -f, --file-headers Display the contents of the overall file header\n\
196 -p, --private-headers Display object format specific file header contents\n\
197 -h, --[section-]headers Display the contents of the section headers\n\
198 -x, --all-headers Display the contents of all headers\n\
199 -d, --disassemble Display assembler contents of executable sections\n\
200 -D, --disassemble-all Display assembler contents of all sections\n\
201 -S, --source Intermix source code with disassembly\n\
202 -s, --full-contents Display the full contents of all sections requested\n\
203 -g, --debugging Display debug information in object file\n\
204 -e, --debugging-tags Display debug information using ctags style\n\
205 -G, --stabs Display (in raw form) any STABS info in the file\n\
206 -W[lLiaprmfFsoRt] or\n\
207 --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,\n\
208 =frames-interp,=str,=loc,=Ranges,=pubtypes,\n\
209 =trace_info,=trace_abbrev,=trace_aranges]\n\
210 Display DWARF info in the file\n\
211 -t, --syms Display the contents of the symbol table(s)\n\
212 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
213 -r, --reloc Display the relocation entries in the file\n\
214 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
215 @<file> Read options from <file>\n\
216 -v, --version Display this program's version number\n\
217 -i, --info List object formats and architectures supported\n\
218 -H, --help Display this information\n\
219 "));
220 if (status != 2)
222 fprintf (stream, _("\n The following switches are optional:\n"));
223 fprintf (stream, _("\
224 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
225 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
226 -j, --section=NAME Only display information for section NAME\n\
227 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
228 -EB --endian=big Assume big endian format when disassembling\n\
229 -EL --endian=little Assume little endian format when disassembling\n\
230 --file-start-context Include context from start of file (with -S)\n\
231 -I, --include=DIR Add DIR to search list for source files\n\
232 -l, --line-numbers Include line numbers and filenames in output\n\
233 -F, --file-offsets Include file offsets when displaying information\n\
234 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
235 The STYLE, if specified, can be `auto', `gnu',\n\
236 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
237 or `gnat'\n\
238 -w, --wide Format output for more than 80 columns\n\
239 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
240 --start-address=ADDR Only process data whose address is >= ADDR\n\
241 --stop-address=ADDR Only process data whose address is <= ADDR\n\
242 --prefix-addresses Print complete address alongside disassembly\n\
243 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
244 --insn-width=WIDTH Display WIDTH bytes on a signle line for -d\n\
245 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
246 --special-syms Include special symbols in symbol dumps\n\
247 --prefix=PREFIX Add PREFIX to absolute paths for -S\n\
248 --prefix-strip=LEVEL Strip initial directory names for -S\n\
249 \n"));
250 list_supported_targets (program_name, stream);
251 list_supported_architectures (program_name, stream);
253 disassembler_usage (stream);
255 if (REPORT_BUGS_TO[0] && status == 0)
256 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
257 exit (status);
260 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
261 enum option_values
263 OPTION_ENDIAN=150,
264 OPTION_START_ADDRESS,
265 OPTION_STOP_ADDRESS,
266 OPTION_DWARF,
267 OPTION_PREFIX,
268 OPTION_PREFIX_STRIP,
269 OPTION_INSN_WIDTH,
270 OPTION_ADJUST_VMA
273 static struct option long_options[]=
275 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
276 {"all-headers", no_argument, NULL, 'x'},
277 {"private-headers", no_argument, NULL, 'p'},
278 {"architecture", required_argument, NULL, 'm'},
279 {"archive-headers", no_argument, NULL, 'a'},
280 {"debugging", no_argument, NULL, 'g'},
281 {"debugging-tags", no_argument, NULL, 'e'},
282 {"demangle", optional_argument, NULL, 'C'},
283 {"disassemble", no_argument, NULL, 'd'},
284 {"disassemble-all", no_argument, NULL, 'D'},
285 {"disassembler-options", required_argument, NULL, 'M'},
286 {"disassemble-zeroes", no_argument, NULL, 'z'},
287 {"dynamic-reloc", no_argument, NULL, 'R'},
288 {"dynamic-syms", no_argument, NULL, 'T'},
289 {"endian", required_argument, NULL, OPTION_ENDIAN},
290 {"file-headers", no_argument, NULL, 'f'},
291 {"file-offsets", no_argument, NULL, 'F'},
292 {"file-start-context", no_argument, &file_start_context, 1},
293 {"full-contents", no_argument, NULL, 's'},
294 {"headers", no_argument, NULL, 'h'},
295 {"help", no_argument, NULL, 'H'},
296 {"info", no_argument, NULL, 'i'},
297 {"line-numbers", no_argument, NULL, 'l'},
298 {"no-show-raw-insn", no_argument, &show_raw_insn, -1},
299 {"prefix-addresses", no_argument, &prefix_addresses, 1},
300 {"reloc", no_argument, NULL, 'r'},
301 {"section", required_argument, NULL, 'j'},
302 {"section-headers", no_argument, NULL, 'h'},
303 {"show-raw-insn", no_argument, &show_raw_insn, 1},
304 {"source", no_argument, NULL, 'S'},
305 {"special-syms", no_argument, &dump_special_syms, 1},
306 {"include", required_argument, NULL, 'I'},
307 {"dwarf", optional_argument, NULL, OPTION_DWARF},
308 {"stabs", no_argument, NULL, 'G'},
309 {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
310 {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
311 {"syms", no_argument, NULL, 't'},
312 {"target", required_argument, NULL, 'b'},
313 {"version", no_argument, NULL, 'V'},
314 {"wide", no_argument, NULL, 'w'},
315 {"prefix", required_argument, NULL, OPTION_PREFIX},
316 {"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP},
317 {"insn-width", required_argument, NULL, OPTION_INSN_WIDTH},
318 {0, no_argument, 0, 0}
321 static void
322 nonfatal (const char *msg)
324 bfd_nonfatal (msg);
325 exit_status = 1;
328 /* Returns TRUE if the specified section should be dumped. */
330 static bfd_boolean
331 process_section_p (asection * section)
333 struct only * only;
335 if (only_list == NULL)
336 return TRUE;
338 for (only = only_list; only; only = only->next)
339 if (strcmp (only->name, section->name) == 0)
341 only->seen = TRUE;
342 return TRUE;
345 return FALSE;
348 /* Add an entry to the 'only' list. */
350 static void
351 add_only (char * name)
353 struct only * only;
355 /* First check to make sure that we do not
356 already have an entry for this name. */
357 for (only = only_list; only; only = only->next)
358 if (strcmp (only->name, name) == 0)
359 return;
361 only = xmalloc (sizeof * only);
362 only->name = name;
363 only->seen = FALSE;
364 only->next = only_list;
365 only_list = only;
368 /* Release the memory used by the 'only' list.
369 PR 11225: Issue a warning message for unseen sections.
370 Only do this if none of the sections were seen. This is mainly to support
371 tools like the GAS testsuite where an object file is dumped with a list of
372 generic section names known to be present in a range of different file
373 formats. */
375 static void
376 free_only_list (void)
378 bfd_boolean at_least_one_seen = FALSE;
379 struct only * only;
380 struct only * next;
382 if (only_list == NULL)
383 return;
385 for (only = only_list; only; only = only->next)
386 if (only->seen)
388 at_least_one_seen = TRUE;
389 break;
392 for (only = only_list; only; only = next)
394 if (! at_least_one_seen)
396 non_fatal (_("Section '%s' mentioned in a -j option, but not found in any input file"),
397 only->name);
398 exit_status = 1;
400 next = only->next;
401 free (only);
406 static void
407 dump_section_header (bfd *abfd, asection *section,
408 void *ignored ATTRIBUTE_UNUSED)
410 char *comma = "";
411 unsigned int opb = bfd_octets_per_byte (abfd);
413 /* Ignore linker created section. See elfNN_ia64_object_p in
414 bfd/elfxx-ia64.c. */
415 if (section->flags & SEC_LINKER_CREATED)
416 return;
418 /* PR 10413: Skip sections that we are ignoring. */
419 if (! process_section_p (section))
420 return;
422 printf ("%3d %-13s %08lx ", section->index,
423 bfd_get_section_name (abfd, section),
424 (unsigned long) bfd_section_size (abfd, section) / opb);
425 bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
426 printf (" ");
427 bfd_printf_vma (abfd, section->lma);
428 printf (" %08lx 2**%u", (unsigned long) section->filepos,
429 bfd_get_section_alignment (abfd, section));
430 if (! wide_output)
431 printf ("\n ");
432 printf (" ");
434 #define PF(x, y) \
435 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
437 PF (SEC_HAS_CONTENTS, "CONTENTS");
438 PF (SEC_ALLOC, "ALLOC");
439 PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
440 PF (SEC_LOAD, "LOAD");
441 PF (SEC_RELOC, "RELOC");
442 PF (SEC_READONLY, "READONLY");
443 PF (SEC_CODE, "CODE");
444 PF (SEC_DATA, "DATA");
445 PF (SEC_ROM, "ROM");
446 PF (SEC_DEBUGGING, "DEBUGGING");
447 PF (SEC_NEVER_LOAD, "NEVER_LOAD");
448 PF (SEC_EXCLUDE, "EXCLUDE");
449 PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
450 if (bfd_get_arch (abfd) == bfd_arch_tic54x)
452 PF (SEC_TIC54X_BLOCK, "BLOCK");
453 PF (SEC_TIC54X_CLINK, "CLINK");
455 PF (SEC_SMALL_DATA, "SMALL_DATA");
456 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
457 PF (SEC_COFF_SHARED, "SHARED");
458 PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
459 PF (SEC_GROUP, "GROUP");
461 if ((section->flags & SEC_LINK_ONCE) != 0)
463 const char *ls;
464 struct coff_comdat_info *comdat;
466 switch (section->flags & SEC_LINK_DUPLICATES)
468 default:
469 abort ();
470 case SEC_LINK_DUPLICATES_DISCARD:
471 ls = "LINK_ONCE_DISCARD";
472 break;
473 case SEC_LINK_DUPLICATES_ONE_ONLY:
474 ls = "LINK_ONCE_ONE_ONLY";
475 break;
476 case SEC_LINK_DUPLICATES_SAME_SIZE:
477 ls = "LINK_ONCE_SAME_SIZE";
478 break;
479 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
480 ls = "LINK_ONCE_SAME_CONTENTS";
481 break;
483 printf ("%s%s", comma, ls);
485 comdat = bfd_coff_get_comdat_section (abfd, section);
486 if (comdat != NULL)
487 printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
489 comma = ", ";
492 printf ("\n");
493 #undef PF
496 static void
497 dump_headers (bfd *abfd)
499 printf (_("Sections:\n"));
501 #ifndef BFD64
502 printf (_("Idx Name Size VMA LMA File off Algn"));
503 #else
504 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
505 if (bfd_get_arch_size (abfd) == 32)
506 printf (_("Idx Name Size VMA LMA File off Algn"));
507 else
508 printf (_("Idx Name Size VMA LMA File off Algn"));
509 #endif
511 if (wide_output)
512 printf (_(" Flags"));
513 if (abfd->flags & HAS_LOAD_PAGE)
514 printf (_(" Pg"));
515 printf ("\n");
517 bfd_map_over_sections (abfd, dump_section_header, NULL);
520 static asymbol **
521 slurp_symtab (bfd *abfd)
523 asymbol **sy = NULL;
524 long storage;
526 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
528 symcount = 0;
529 return NULL;
532 storage = bfd_get_symtab_upper_bound (abfd);
533 if (storage < 0)
534 bfd_fatal (bfd_get_filename (abfd));
535 if (storage)
536 sy = (asymbol **) xmalloc (storage);
538 symcount = bfd_canonicalize_symtab (abfd, sy);
539 if (symcount < 0)
540 bfd_fatal (bfd_get_filename (abfd));
541 return sy;
544 /* Read in the dynamic symbols. */
546 static asymbol **
547 slurp_dynamic_symtab (bfd *abfd)
549 asymbol **sy = NULL;
550 long storage;
552 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
553 if (storage < 0)
555 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
557 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
558 dynsymcount = 0;
559 return NULL;
562 bfd_fatal (bfd_get_filename (abfd));
564 if (storage)
565 sy = (asymbol **) xmalloc (storage);
567 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
568 if (dynsymcount < 0)
569 bfd_fatal (bfd_get_filename (abfd));
570 return sy;
573 /* Filter out (in place) symbols that are useless for disassembly.
574 COUNT is the number of elements in SYMBOLS.
575 Return the number of useful symbols. */
577 static long
578 remove_useless_symbols (asymbol **symbols, long count)
580 asymbol **in_ptr = symbols, **out_ptr = symbols;
582 while (--count >= 0)
584 asymbol *sym = *in_ptr++;
586 if (sym->name == NULL || sym->name[0] == '\0')
587 continue;
588 if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
589 continue;
590 if (bfd_is_und_section (sym->section)
591 || bfd_is_com_section (sym->section))
592 continue;
594 *out_ptr++ = sym;
596 return out_ptr - symbols;
599 /* Sort symbols into value order. */
601 static int
602 compare_symbols (const void *ap, const void *bp)
604 const asymbol *a = * (const asymbol **) ap;
605 const asymbol *b = * (const asymbol **) bp;
606 const char *an;
607 const char *bn;
608 size_t anl;
609 size_t bnl;
610 bfd_boolean af;
611 bfd_boolean bf;
612 flagword aflags;
613 flagword bflags;
615 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
616 return 1;
617 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
618 return -1;
620 if (a->section > b->section)
621 return 1;
622 else if (a->section < b->section)
623 return -1;
625 an = bfd_asymbol_name (a);
626 bn = bfd_asymbol_name (b);
627 anl = strlen (an);
628 bnl = strlen (bn);
630 /* The symbols gnu_compiled and gcc2_compiled convey no real
631 information, so put them after other symbols with the same value. */
632 af = (strstr (an, "gnu_compiled") != NULL
633 || strstr (an, "gcc2_compiled") != NULL);
634 bf = (strstr (bn, "gnu_compiled") != NULL
635 || strstr (bn, "gcc2_compiled") != NULL);
637 if (af && ! bf)
638 return 1;
639 if (! af && bf)
640 return -1;
642 /* We use a heuristic for the file name, to try to sort it after
643 more useful symbols. It may not work on non Unix systems, but it
644 doesn't really matter; the only difference is precisely which
645 symbol names get printed. */
647 #define file_symbol(s, sn, snl) \
648 (((s)->flags & BSF_FILE) != 0 \
649 || ((sn)[(snl) - 2] == '.' \
650 && ((sn)[(snl) - 1] == 'o' \
651 || (sn)[(snl) - 1] == 'a')))
653 af = file_symbol (a, an, anl);
654 bf = file_symbol (b, bn, bnl);
656 if (af && ! bf)
657 return 1;
658 if (! af && bf)
659 return -1;
661 /* Try to sort global symbols before local symbols before function
662 symbols before debugging symbols. */
664 aflags = a->flags;
665 bflags = b->flags;
667 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
669 if ((aflags & BSF_DEBUGGING) != 0)
670 return 1;
671 else
672 return -1;
674 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
676 if ((aflags & BSF_FUNCTION) != 0)
677 return -1;
678 else
679 return 1;
681 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
683 if ((aflags & BSF_LOCAL) != 0)
684 return 1;
685 else
686 return -1;
688 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
690 if ((aflags & BSF_GLOBAL) != 0)
691 return -1;
692 else
693 return 1;
696 /* Symbols that start with '.' might be section names, so sort them
697 after symbols that don't start with '.'. */
698 if (an[0] == '.' && bn[0] != '.')
699 return 1;
700 if (an[0] != '.' && bn[0] == '.')
701 return -1;
703 /* Finally, if we can't distinguish them in any other way, try to
704 get consistent results by sorting the symbols by name. */
705 return strcmp (an, bn);
708 /* Sort relocs into address order. */
710 static int
711 compare_relocs (const void *ap, const void *bp)
713 const arelent *a = * (const arelent **) ap;
714 const arelent *b = * (const arelent **) bp;
716 if (a->address > b->address)
717 return 1;
718 else if (a->address < b->address)
719 return -1;
721 /* So that associated relocations tied to the same address show up
722 in the correct order, we don't do any further sorting. */
723 if (a > b)
724 return 1;
725 else if (a < b)
726 return -1;
727 else
728 return 0;
731 /* Print an address (VMA) to the output stream in INFO.
732 If SKIP_ZEROES is TRUE, omit leading zeroes. */
734 static void
735 objdump_print_value (bfd_vma vma, struct disassemble_info *inf,
736 bfd_boolean skip_zeroes)
738 char buf[30];
739 char *p;
740 struct objdump_disasm_info *aux;
742 aux = (struct objdump_disasm_info *) inf->application_data;
743 bfd_sprintf_vma (aux->abfd, buf, vma);
744 if (! skip_zeroes)
745 p = buf;
746 else
748 for (p = buf; *p == '0'; ++p)
750 if (*p == '\0')
751 --p;
753 (*inf->fprintf_func) (inf->stream, "%s", p);
756 /* Print the name of a symbol. */
758 static void
759 objdump_print_symname (bfd *abfd, struct disassemble_info *inf,
760 asymbol *sym)
762 char *alloc;
763 const char *name;
765 alloc = NULL;
766 name = bfd_asymbol_name (sym);
767 if (do_demangle && name[0] != '\0')
769 /* Demangle the name. */
770 alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
771 if (alloc != NULL)
772 name = alloc;
775 if (inf != NULL)
776 (*inf->fprintf_func) (inf->stream, "%s", name);
777 else
778 printf ("%s", name);
780 if (alloc != NULL)
781 free (alloc);
784 /* Locate a symbol given a bfd and a section (from INFO->application_data),
785 and a VMA. If INFO->application_data->require_sec is TRUE, then always
786 require the symbol to be in the section. Returns NULL if there is no
787 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
788 of the symbol in sorted_syms. */
790 static asymbol *
791 find_symbol_for_address (bfd_vma vma,
792 struct disassemble_info *inf,
793 long *place)
795 /* @@ Would it speed things up to cache the last two symbols returned,
796 and maybe their address ranges? For many processors, only one memory
797 operand can be present at a time, so the 2-entry cache wouldn't be
798 constantly churned by code doing heavy memory accesses. */
800 /* Indices in `sorted_syms'. */
801 long min = 0;
802 long max_count = sorted_symcount;
803 long thisplace;
804 struct objdump_disasm_info *aux;
805 bfd *abfd;
806 asection *sec;
807 unsigned int opb;
808 bfd_boolean want_section;
810 if (sorted_symcount < 1)
811 return NULL;
813 aux = (struct objdump_disasm_info *) inf->application_data;
814 abfd = aux->abfd;
815 sec = aux->sec;
816 opb = inf->octets_per_byte;
818 /* Perform a binary search looking for the closest symbol to the
819 required value. We are searching the range (min, max_count]. */
820 while (min + 1 < max_count)
822 asymbol *sym;
824 thisplace = (max_count + min) / 2;
825 sym = sorted_syms[thisplace];
827 if (bfd_asymbol_value (sym) > vma)
828 max_count = thisplace;
829 else if (bfd_asymbol_value (sym) < vma)
830 min = thisplace;
831 else
833 min = thisplace;
834 break;
838 /* The symbol we want is now in min, the low end of the range we
839 were searching. If there are several symbols with the same
840 value, we want the first one. */
841 thisplace = min;
842 while (thisplace > 0
843 && (bfd_asymbol_value (sorted_syms[thisplace])
844 == bfd_asymbol_value (sorted_syms[thisplace - 1])))
845 --thisplace;
847 /* Prefer a symbol in the current section if we have multple symbols
848 with the same value, as can occur with overlays or zero size
849 sections. */
850 min = thisplace;
851 while (min < max_count
852 && (bfd_asymbol_value (sorted_syms[min])
853 == bfd_asymbol_value (sorted_syms[thisplace])))
855 if (sorted_syms[min]->section == sec
856 && inf->symbol_is_valid (sorted_syms[min], inf))
858 thisplace = min;
860 if (place != NULL)
861 *place = thisplace;
863 return sorted_syms[thisplace];
865 ++min;
868 /* If the file is relocatable, and the symbol could be from this
869 section, prefer a symbol from this section over symbols from
870 others, even if the other symbol's value might be closer.
872 Note that this may be wrong for some symbol references if the
873 sections have overlapping memory ranges, but in that case there's
874 no way to tell what's desired without looking at the relocation
875 table.
877 Also give the target a chance to reject symbols. */
878 want_section = (aux->require_sec
879 || ((abfd->flags & HAS_RELOC) != 0
880 && vma >= bfd_get_section_vma (abfd, sec)
881 && vma < (bfd_get_section_vma (abfd, sec)
882 + bfd_section_size (abfd, sec) / opb)));
883 if ((sorted_syms[thisplace]->section != sec && want_section)
884 || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
886 long i;
887 long newplace = sorted_symcount;
889 for (i = min - 1; i >= 0; i--)
891 if ((sorted_syms[i]->section == sec || !want_section)
892 && inf->symbol_is_valid (sorted_syms[i], inf))
894 if (newplace == sorted_symcount)
895 newplace = i;
897 if (bfd_asymbol_value (sorted_syms[i])
898 != bfd_asymbol_value (sorted_syms[newplace]))
899 break;
901 /* Remember this symbol and keep searching until we reach
902 an earlier address. */
903 newplace = i;
907 if (newplace != sorted_symcount)
908 thisplace = newplace;
909 else
911 /* We didn't find a good symbol with a smaller value.
912 Look for one with a larger value. */
913 for (i = thisplace + 1; i < sorted_symcount; i++)
915 if ((sorted_syms[i]->section == sec || !want_section)
916 && inf->symbol_is_valid (sorted_syms[i], inf))
918 thisplace = i;
919 break;
924 if ((sorted_syms[thisplace]->section != sec && want_section)
925 || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
926 /* There is no suitable symbol. */
927 return NULL;
930 if (place != NULL)
931 *place = thisplace;
933 return sorted_syms[thisplace];
936 /* Print an address and the offset to the nearest symbol. */
938 static void
939 objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym,
940 bfd_vma vma, struct disassemble_info *inf,
941 bfd_boolean skip_zeroes)
943 objdump_print_value (vma, inf, skip_zeroes);
945 if (sym == NULL)
947 bfd_vma secaddr;
949 (*inf->fprintf_func) (inf->stream, " <%s",
950 bfd_get_section_name (abfd, sec));
951 secaddr = bfd_get_section_vma (abfd, sec);
952 if (vma < secaddr)
954 (*inf->fprintf_func) (inf->stream, "-0x");
955 objdump_print_value (secaddr - vma, inf, TRUE);
957 else if (vma > secaddr)
959 (*inf->fprintf_func) (inf->stream, "+0x");
960 objdump_print_value (vma - secaddr, inf, TRUE);
962 (*inf->fprintf_func) (inf->stream, ">");
964 else
966 (*inf->fprintf_func) (inf->stream, " <");
967 objdump_print_symname (abfd, inf, sym);
968 if (bfd_asymbol_value (sym) > vma)
970 (*inf->fprintf_func) (inf->stream, "-0x");
971 objdump_print_value (bfd_asymbol_value (sym) - vma, inf, TRUE);
973 else if (vma > bfd_asymbol_value (sym))
975 (*inf->fprintf_func) (inf->stream, "+0x");
976 objdump_print_value (vma - bfd_asymbol_value (sym), inf, TRUE);
978 (*inf->fprintf_func) (inf->stream, ">");
981 if (display_file_offsets)
982 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
983 (long int)(sec->filepos + (vma - sec->vma)));
986 /* Print an address (VMA), symbolically if possible.
987 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
989 static void
990 objdump_print_addr (bfd_vma vma,
991 struct disassemble_info *inf,
992 bfd_boolean skip_zeroes)
994 struct objdump_disasm_info *aux;
995 asymbol *sym = NULL;
996 bfd_boolean skip_find = FALSE;
998 aux = (struct objdump_disasm_info *) inf->application_data;
1000 if (sorted_symcount < 1)
1002 (*inf->fprintf_func) (inf->stream, "0x");
1003 objdump_print_value (vma, inf, skip_zeroes);
1005 if (display_file_offsets)
1006 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
1007 (long int)(aux->sec->filepos + (vma - aux->sec->vma)));
1008 return;
1011 if (aux->reloc != NULL
1012 && aux->reloc->sym_ptr_ptr != NULL
1013 && * aux->reloc->sym_ptr_ptr != NULL)
1015 sym = * aux->reloc->sym_ptr_ptr;
1017 /* Adjust the vma to the reloc. */
1018 vma += bfd_asymbol_value (sym);
1020 if (bfd_is_und_section (bfd_get_section (sym)))
1021 skip_find = TRUE;
1024 if (!skip_find)
1025 sym = find_symbol_for_address (vma, inf, NULL);
1027 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, inf,
1028 skip_zeroes);
1031 /* Print VMA to INFO. This function is passed to the disassembler
1032 routine. */
1034 static void
1035 objdump_print_address (bfd_vma vma, struct disassemble_info *inf)
1037 objdump_print_addr (vma, inf, ! prefix_addresses);
1040 /* Determine if the given address has a symbol associated with it. */
1042 static int
1043 objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * inf)
1045 asymbol * sym;
1047 sym = find_symbol_for_address (vma, inf, NULL);
1049 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
1052 /* Hold the last function name and the last line number we displayed
1053 in a disassembly. */
1055 static char *prev_functionname;
1056 static unsigned int prev_line;
1058 /* We keep a list of all files that we have seen when doing a
1059 disassembly with source, so that we know how much of the file to
1060 display. This can be important for inlined functions. */
1062 struct print_file_list
1064 struct print_file_list *next;
1065 const char *filename;
1066 const char *modname;
1067 const char *map;
1068 size_t mapsize;
1069 const char **linemap;
1070 unsigned maxline;
1071 unsigned last_line;
1072 int first;
1075 static struct print_file_list *print_files;
1077 /* The number of preceding context lines to show when we start
1078 displaying a file for the first time. */
1080 #define SHOW_PRECEDING_CONTEXT_LINES (5)
1082 /* Read a complete file into memory. */
1084 static const char *
1085 slurp_file (const char *fn, size_t *size)
1087 #ifdef HAVE_MMAP
1088 int ps = getpagesize ();
1089 size_t msize;
1090 #endif
1091 const char *map;
1092 struct stat st;
1093 int fd = open (fn, O_RDONLY | O_BINARY);
1095 if (fd < 0)
1096 return NULL;
1097 if (fstat (fd, &st) < 0)
1098 return NULL;
1099 *size = st.st_size;
1100 #ifdef HAVE_MMAP
1101 msize = (*size + ps - 1) & ~(ps - 1);
1102 map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0);
1103 if (map != (char *)-1L)
1105 close(fd);
1106 return map;
1108 #endif
1109 map = (const char *) malloc (*size);
1110 if (!map || (size_t) read (fd, (char *)map, *size) != *size)
1112 free ((void *)map);
1113 map = NULL;
1115 close (fd);
1116 return map;
1119 #define line_map_decrease 5
1121 /* Precompute array of lines for a mapped file. */
1123 static const char **
1124 index_file (const char *map, size_t size, unsigned int *maxline)
1126 const char *p, *lstart, *end;
1127 int chars_per_line = 45; /* First iteration will use 40. */
1128 unsigned int lineno;
1129 const char **linemap = NULL;
1130 unsigned long line_map_size = 0;
1132 lineno = 0;
1133 lstart = map;
1134 end = map + size;
1136 for (p = map; p < end; p++)
1138 if (*p == '\n')
1140 if (p + 1 < end && p[1] == '\r')
1141 p++;
1143 else if (*p == '\r')
1145 if (p + 1 < end && p[1] == '\n')
1146 p++;
1148 else
1149 continue;
1151 /* End of line found. */
1153 if (linemap == NULL || line_map_size < lineno + 1)
1155 unsigned long newsize;
1157 chars_per_line -= line_map_decrease;
1158 if (chars_per_line <= 1)
1159 chars_per_line = 1;
1160 line_map_size = size / chars_per_line + 1;
1161 if (line_map_size < lineno + 1)
1162 line_map_size = lineno + 1;
1163 newsize = line_map_size * sizeof (char *);
1164 linemap = (const char **) xrealloc (linemap, newsize);
1167 linemap[lineno++] = lstart;
1168 lstart = p + 1;
1171 *maxline = lineno;
1172 return linemap;
1175 /* Tries to open MODNAME, and if successful adds a node to print_files
1176 linked list and returns that node. Returns NULL on failure. */
1178 static struct print_file_list *
1179 try_print_file_open (const char *origname, const char *modname)
1181 struct print_file_list *p;
1183 p = (struct print_file_list *) xmalloc (sizeof (struct print_file_list));
1185 p->map = slurp_file (modname, &p->mapsize);
1186 if (p->map == NULL)
1188 free (p);
1189 return NULL;
1192 p->linemap = index_file (p->map, p->mapsize, &p->maxline);
1193 p->last_line = 0;
1194 p->filename = origname;
1195 p->modname = modname;
1196 p->next = print_files;
1197 p->first = 1;
1198 print_files = p;
1199 return p;
1202 /* If the the source file, as described in the symtab, is not found
1203 try to locate it in one of the paths specified with -I
1204 If found, add location to print_files linked list. */
1206 static struct print_file_list *
1207 update_source_path (const char *filename)
1209 struct print_file_list *p;
1210 const char *fname;
1211 int i;
1213 if (filename == NULL)
1214 return NULL;
1216 p = try_print_file_open (filename, filename);
1217 if (p != NULL)
1218 return p;
1220 if (include_path_count == 0)
1221 return NULL;
1223 /* Get the name of the file. */
1224 fname = lbasename (filename);
1226 /* If file exists under a new path, we need to add it to the list
1227 so that show_line knows about it. */
1228 for (i = 0; i < include_path_count; i++)
1230 char *modname = concat (include_paths[i], "/", fname, (const char *) 0);
1232 p = try_print_file_open (filename, modname);
1233 if (p)
1234 return p;
1236 free (modname);
1239 return NULL;
1242 /* Print a source file line. */
1244 static void
1245 print_line (struct print_file_list *p, unsigned int linenum)
1247 const char *l;
1248 size_t len;
1250 --linenum;
1251 if (linenum >= p->maxline)
1252 return;
1253 l = p->linemap [linenum];
1254 /* Test fwrite return value to quiet glibc warning. */
1255 len = strcspn (l, "\n\r");
1256 if (len == 0 || fwrite (l, len, 1, stdout) == 1)
1257 putchar ('\n');
1260 /* Print a range of source code lines. */
1262 static void
1263 dump_lines (struct print_file_list *p, unsigned int start, unsigned int end)
1265 if (p->map == NULL)
1266 return;
1267 while (start <= end)
1269 print_line (p, start);
1270 start++;
1274 /* Show the line number, or the source line, in a disassembly
1275 listing. */
1277 static void
1278 show_line (bfd *abfd, asection *section, bfd_vma addr_offset)
1280 const char *filename;
1281 const char *functionname;
1282 unsigned int linenumber;
1283 bfd_boolean reloc;
1285 if (! with_line_numbers && ! with_source_code)
1286 return;
1288 if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
1289 &functionname, &linenumber))
1290 return;
1292 if (filename != NULL && *filename == '\0')
1293 filename = NULL;
1294 if (functionname != NULL && *functionname == '\0')
1295 functionname = NULL;
1297 if (filename
1298 && IS_ABSOLUTE_PATH (filename)
1299 && prefix)
1301 char *path_up;
1302 const char *fname = filename;
1303 char *path = (char *) alloca (prefix_length + PATH_MAX + 1);
1305 if (prefix_length)
1306 memcpy (path, prefix, prefix_length);
1307 path_up = path + prefix_length;
1309 /* Build relocated filename, stripping off leading directories
1310 from the initial filename if requested. */
1311 if (prefix_strip > 0)
1313 int level = 0;
1314 const char *s;
1316 /* Skip selected directory levels. */
1317 for (s = fname + 1; *s != '\0' && level < prefix_strip; s++)
1318 if (IS_DIR_SEPARATOR(*s))
1320 fname = s;
1321 level++;
1325 /* Update complete filename. */
1326 strncpy (path_up, fname, PATH_MAX);
1327 path_up[PATH_MAX] = '\0';
1329 filename = path;
1330 reloc = TRUE;
1332 else
1333 reloc = FALSE;
1335 if (with_line_numbers)
1337 if (functionname != NULL
1338 && (prev_functionname == NULL
1339 || strcmp (functionname, prev_functionname) != 0))
1340 printf ("%s():\n", functionname);
1341 if (linenumber > 0 && linenumber != prev_line)
1342 printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
1345 if (with_source_code
1346 && filename != NULL
1347 && linenumber > 0)
1349 struct print_file_list **pp, *p;
1350 unsigned l;
1352 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1353 if (strcmp ((*pp)->filename, filename) == 0)
1354 break;
1355 p = *pp;
1357 if (p == NULL)
1359 if (reloc)
1360 filename = xstrdup (filename);
1361 p = update_source_path (filename);
1364 if (p != NULL && linenumber != p->last_line)
1366 if (file_start_context && p->first)
1367 l = 1;
1368 else
1370 l = linenumber - SHOW_PRECEDING_CONTEXT_LINES;
1371 if (l >= linenumber)
1372 l = 1;
1373 if (p->last_line >= l && p->last_line <= linenumber)
1374 l = p->last_line + 1;
1376 dump_lines (p, l, linenumber);
1377 p->last_line = linenumber;
1378 p->first = 0;
1382 if (functionname != NULL
1383 && (prev_functionname == NULL
1384 || strcmp (functionname, prev_functionname) != 0))
1386 if (prev_functionname != NULL)
1387 free (prev_functionname);
1388 prev_functionname = (char *) xmalloc (strlen (functionname) + 1);
1389 strcpy (prev_functionname, functionname);
1392 if (linenumber > 0 && linenumber != prev_line)
1393 prev_line = linenumber;
1396 /* Pseudo FILE object for strings. */
1397 typedef struct
1399 char *buffer;
1400 size_t pos;
1401 size_t alloc;
1402 } SFILE;
1404 /* sprintf to a "stream". */
1406 static int ATTRIBUTE_PRINTF_2
1407 objdump_sprintf (SFILE *f, const char *format, ...)
1409 size_t n;
1410 va_list args;
1412 while (1)
1414 size_t space = f->alloc - f->pos;
1416 va_start (args, format);
1417 n = vsnprintf (f->buffer + f->pos, space, format, args);
1418 va_end (args);
1420 if (space > n)
1421 break;
1423 f->alloc = (f->alloc + n) * 2;
1424 f->buffer = (char *) xrealloc (f->buffer, f->alloc);
1426 f->pos += n;
1428 return n;
1431 /* The number of zeroes we want to see before we start skipping them.
1432 The number is arbitrarily chosen. */
1434 #define DEFAULT_SKIP_ZEROES 8
1436 /* The number of zeroes to skip at the end of a section. If the
1437 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1438 SKIP_ZEROES, they will be disassembled. If there are fewer than
1439 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1440 attempt to avoid disassembling zeroes inserted by section
1441 alignment. */
1443 #define DEFAULT_SKIP_ZEROES_AT_END 3
1445 /* Disassemble some data in memory between given values. */
1447 static void
1448 disassemble_bytes (struct disassemble_info * inf,
1449 disassembler_ftype disassemble_fn,
1450 bfd_boolean insns,
1451 bfd_byte * data,
1452 bfd_vma start_offset,
1453 bfd_vma stop_offset,
1454 bfd_vma rel_offset,
1455 arelent *** relppp,
1456 arelent ** relppend)
1458 struct objdump_disasm_info *aux;
1459 asection *section;
1460 int octets_per_line;
1461 int skip_addr_chars;
1462 bfd_vma addr_offset;
1463 unsigned int opb = inf->octets_per_byte;
1464 unsigned int skip_zeroes = inf->skip_zeroes;
1465 unsigned int skip_zeroes_at_end = inf->skip_zeroes_at_end;
1466 int octets = opb;
1467 SFILE sfile;
1469 aux = (struct objdump_disasm_info *) inf->application_data;
1470 section = aux->sec;
1472 sfile.alloc = 120;
1473 sfile.buffer = (char *) xmalloc (sfile.alloc);
1474 sfile.pos = 0;
1476 if (insn_width)
1477 octets_per_line = insn_width;
1478 else if (insns)
1479 octets_per_line = 4;
1480 else
1481 octets_per_line = 16;
1483 /* Figure out how many characters to skip at the start of an
1484 address, to make the disassembly look nicer. We discard leading
1485 zeroes in chunks of 4, ensuring that there is always a leading
1486 zero remaining. */
1487 skip_addr_chars = 0;
1488 if (! prefix_addresses)
1490 char buf[30];
1492 bfd_sprintf_vma (aux->abfd, buf, section->vma + section->size / opb);
1494 while (buf[skip_addr_chars] == '0')
1495 ++skip_addr_chars;
1497 /* Don't discard zeros on overflow. */
1498 if (buf[skip_addr_chars] == '\0' && section->vma != 0)
1499 skip_addr_chars = 0;
1501 if (skip_addr_chars != 0)
1502 skip_addr_chars = (skip_addr_chars - 1) & -4;
1505 inf->insn_info_valid = 0;
1507 addr_offset = start_offset;
1508 while (addr_offset < stop_offset)
1510 bfd_vma z;
1511 bfd_boolean need_nl = FALSE;
1512 int previous_octets;
1514 /* Remember the length of the previous instruction. */
1515 previous_octets = octets;
1516 octets = 0;
1518 /* Make sure we don't use relocs from previous instructions. */
1519 aux->reloc = NULL;
1521 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1522 print `...'. */
1523 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1524 if (data[z] != 0)
1525 break;
1526 if (! disassemble_zeroes
1527 && (inf->insn_info_valid == 0
1528 || inf->branch_delay_insns == 0)
1529 && (z - addr_offset * opb >= skip_zeroes
1530 || (z == stop_offset * opb &&
1531 z - addr_offset * opb < skip_zeroes_at_end)))
1533 /* If there are more nonzero octets to follow, we only skip
1534 zeroes in multiples of 4, to try to avoid running over
1535 the start of an instruction which happens to start with
1536 zero. */
1537 if (z != stop_offset * opb)
1538 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1540 octets = z - addr_offset * opb;
1542 /* If we are going to display more data, and we are displaying
1543 file offsets, then tell the user how many zeroes we skip
1544 and the file offset from where we resume dumping. */
1545 if (display_file_offsets && ((addr_offset + (octets / opb)) < stop_offset))
1546 printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
1547 octets / opb,
1548 (unsigned long) (section->filepos
1549 + (addr_offset + (octets / opb))));
1550 else
1551 printf ("\t...\n");
1553 else
1555 char buf[50];
1556 int bpc = 0;
1557 int pb = 0;
1559 if (with_line_numbers || with_source_code)
1560 show_line (aux->abfd, section, addr_offset);
1562 if (! prefix_addresses)
1564 char *s;
1566 bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset);
1567 for (s = buf + skip_addr_chars; *s == '0'; s++)
1568 *s = ' ';
1569 if (*s == '\0')
1570 *--s = '0';
1571 printf ("%s:\t", buf + skip_addr_chars);
1573 else
1575 aux->require_sec = TRUE;
1576 objdump_print_address (section->vma + addr_offset, inf);
1577 aux->require_sec = FALSE;
1578 putchar (' ');
1581 if (insns)
1583 sfile.pos = 0;
1584 inf->fprintf_func = (fprintf_ftype) objdump_sprintf;
1585 inf->stream = &sfile;
1586 inf->bytes_per_line = 0;
1587 inf->bytes_per_chunk = 0;
1588 inf->flags = disassemble_all ? DISASSEMBLE_DATA : 0;
1589 if (machine)
1590 inf->flags |= USER_SPECIFIED_MACHINE_TYPE;
1592 if (inf->disassembler_needs_relocs
1593 && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0
1594 && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0
1595 && *relppp < relppend)
1597 bfd_signed_vma distance_to_rel;
1599 distance_to_rel = (**relppp)->address
1600 - (rel_offset + addr_offset);
1602 /* Check to see if the current reloc is associated with
1603 the instruction that we are about to disassemble. */
1604 if (distance_to_rel == 0
1605 /* FIXME: This is wrong. We are trying to catch
1606 relocs that are addressed part way through the
1607 current instruction, as might happen with a packed
1608 VLIW instruction. Unfortunately we do not know the
1609 length of the current instruction since we have not
1610 disassembled it yet. Instead we take a guess based
1611 upon the length of the previous instruction. The
1612 proper solution is to have a new target-specific
1613 disassembler function which just returns the length
1614 of an instruction at a given address without trying
1615 to display its disassembly. */
1616 || (distance_to_rel > 0
1617 && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
1619 inf->flags |= INSN_HAS_RELOC;
1620 aux->reloc = **relppp;
1624 octets = (*disassemble_fn) (section->vma + addr_offset, inf);
1625 inf->fprintf_func = (fprintf_ftype) fprintf;
1626 inf->stream = stdout;
1627 if (insn_width == 0 && inf->bytes_per_line != 0)
1628 octets_per_line = inf->bytes_per_line;
1629 if (octets < 0)
1631 if (sfile.pos)
1632 printf ("%s\n", sfile.buffer);
1633 break;
1636 else
1638 bfd_vma j;
1640 octets = octets_per_line;
1641 if (addr_offset + octets / opb > stop_offset)
1642 octets = (stop_offset - addr_offset) * opb;
1644 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1646 if (ISPRINT (data[j]))
1647 buf[j - addr_offset * opb] = data[j];
1648 else
1649 buf[j - addr_offset * opb] = '.';
1651 buf[j - addr_offset * opb] = '\0';
1654 if (prefix_addresses
1655 ? show_raw_insn > 0
1656 : show_raw_insn >= 0)
1658 bfd_vma j;
1660 /* If ! prefix_addresses and ! wide_output, we print
1661 octets_per_line octets per line. */
1662 pb = octets;
1663 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1664 pb = octets_per_line;
1666 if (inf->bytes_per_chunk)
1667 bpc = inf->bytes_per_chunk;
1668 else
1669 bpc = 1;
1671 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1673 int k;
1675 if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
1677 for (k = bpc - 1; k >= 0; k--)
1678 printf ("%02x", (unsigned) data[j + k]);
1679 putchar (' ');
1681 else
1683 for (k = 0; k < bpc; k++)
1684 printf ("%02x", (unsigned) data[j + k]);
1685 putchar (' ');
1689 for (; pb < octets_per_line; pb += bpc)
1691 int k;
1693 for (k = 0; k < bpc; k++)
1694 printf (" ");
1695 putchar (' ');
1698 /* Separate raw data from instruction by extra space. */
1699 if (insns)
1700 putchar ('\t');
1701 else
1702 printf (" ");
1705 if (! insns)
1706 printf ("%s", buf);
1707 else if (sfile.pos)
1708 printf ("%s", sfile.buffer);
1710 if (prefix_addresses
1711 ? show_raw_insn > 0
1712 : show_raw_insn >= 0)
1714 while (pb < octets)
1716 bfd_vma j;
1717 char *s;
1719 putchar ('\n');
1720 j = addr_offset * opb + pb;
1722 bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb);
1723 for (s = buf + skip_addr_chars; *s == '0'; s++)
1724 *s = ' ';
1725 if (*s == '\0')
1726 *--s = '0';
1727 printf ("%s:\t", buf + skip_addr_chars);
1729 pb += octets_per_line;
1730 if (pb > octets)
1731 pb = octets;
1732 for (; j < addr_offset * opb + pb; j += bpc)
1734 int k;
1736 if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
1738 for (k = bpc - 1; k >= 0; k--)
1739 printf ("%02x", (unsigned) data[j + k]);
1740 putchar (' ');
1742 else
1744 for (k = 0; k < bpc; k++)
1745 printf ("%02x", (unsigned) data[j + k]);
1746 putchar (' ');
1752 if (!wide_output)
1753 putchar ('\n');
1754 else
1755 need_nl = TRUE;
1758 while ((*relppp) < relppend
1759 && (**relppp)->address < rel_offset + addr_offset + octets / opb)
1761 if (dump_reloc_info || dump_dynamic_reloc_info)
1763 arelent *q;
1765 q = **relppp;
1767 if (wide_output)
1768 putchar ('\t');
1769 else
1770 printf ("\t\t\t");
1772 objdump_print_value (section->vma - rel_offset + q->address,
1773 inf, TRUE);
1775 if (q->howto == NULL)
1776 printf (": *unknown*\t");
1777 else if (q->howto->name)
1778 printf (": %s\t", q->howto->name);
1779 else
1780 printf (": %d\t", q->howto->type);
1782 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1783 printf ("*unknown*");
1784 else
1786 const char *sym_name;
1788 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1789 if (sym_name != NULL && *sym_name != '\0')
1790 objdump_print_symname (aux->abfd, inf, *q->sym_ptr_ptr);
1791 else
1793 asection *sym_sec;
1795 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1796 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1797 if (sym_name == NULL || *sym_name == '\0')
1798 sym_name = "*unknown*";
1799 printf ("%s", sym_name);
1803 if (q->addend)
1805 printf ("+0x");
1806 objdump_print_value (q->addend, inf, TRUE);
1809 printf ("\n");
1810 need_nl = FALSE;
1812 ++(*relppp);
1815 if (need_nl)
1816 printf ("\n");
1818 addr_offset += octets / opb;
1821 free (sfile.buffer);
1824 static void
1825 disassemble_section (bfd *abfd, asection *section, void *inf)
1827 const struct elf_backend_data * bed;
1828 bfd_vma sign_adjust = 0;
1829 struct disassemble_info * pinfo = (struct disassemble_info *) inf;
1830 struct objdump_disasm_info * paux;
1831 unsigned int opb = pinfo->octets_per_byte;
1832 bfd_byte * data = NULL;
1833 bfd_size_type datasize = 0;
1834 arelent ** rel_pp = NULL;
1835 arelent ** rel_ppstart = NULL;
1836 arelent ** rel_ppend;
1837 unsigned long stop_offset;
1838 asymbol * sym = NULL;
1839 long place = 0;
1840 long rel_count;
1841 bfd_vma rel_offset;
1842 unsigned long addr_offset;
1844 /* Sections that do not contain machine
1845 code are not normally disassembled. */
1846 if (! disassemble_all
1847 && only_list == NULL
1848 && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
1849 != (SEC_CODE | SEC_HAS_CONTENTS)))
1850 return;
1852 if (! process_section_p (section))
1853 return;
1855 datasize = bfd_get_section_size (section);
1856 if (datasize == 0)
1857 return;
1859 /* Decide which set of relocs to use. Load them if necessary. */
1860 paux = (struct objdump_disasm_info *) pinfo->application_data;
1861 if (paux->dynrelbuf)
1863 rel_pp = paux->dynrelbuf;
1864 rel_count = paux->dynrelcount;
1865 /* Dynamic reloc addresses are absolute, non-dynamic are section
1866 relative. REL_OFFSET specifies the reloc address corresponding
1867 to the start of this section. */
1868 rel_offset = section->vma;
1870 else
1872 rel_count = 0;
1873 rel_pp = NULL;
1874 rel_offset = 0;
1876 if ((section->flags & SEC_RELOC) != 0
1877 && (dump_reloc_info || pinfo->disassembler_needs_relocs))
1879 long relsize;
1881 relsize = bfd_get_reloc_upper_bound (abfd, section);
1882 if (relsize < 0)
1883 bfd_fatal (bfd_get_filename (abfd));
1885 if (relsize > 0)
1887 rel_ppstart = rel_pp = (arelent **) xmalloc (relsize);
1888 rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms);
1889 if (rel_count < 0)
1890 bfd_fatal (bfd_get_filename (abfd));
1892 /* Sort the relocs by address. */
1893 qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs);
1897 rel_ppend = rel_pp + rel_count;
1899 data = (bfd_byte *) xmalloc (datasize);
1901 bfd_get_section_contents (abfd, section, data, 0, datasize);
1903 paux->sec = section;
1904 pinfo->buffer = data;
1905 pinfo->buffer_vma = section->vma;
1906 pinfo->buffer_length = datasize;
1907 pinfo->section = section;
1909 if (start_address == (bfd_vma) -1
1910 || start_address < pinfo->buffer_vma)
1911 addr_offset = 0;
1912 else
1913 addr_offset = start_address - pinfo->buffer_vma;
1915 if (stop_address == (bfd_vma) -1)
1916 stop_offset = datasize / opb;
1917 else
1919 if (stop_address < pinfo->buffer_vma)
1920 stop_offset = 0;
1921 else
1922 stop_offset = stop_address - pinfo->buffer_vma;
1923 if (stop_offset > pinfo->buffer_length / opb)
1924 stop_offset = pinfo->buffer_length / opb;
1927 /* Skip over the relocs belonging to addresses below the
1928 start address. */
1929 while (rel_pp < rel_ppend
1930 && (*rel_pp)->address < rel_offset + addr_offset)
1931 ++rel_pp;
1933 if (addr_offset < stop_offset)
1934 printf (_("\nDisassembly of section %s:\n"), section->name);
1936 /* Find the nearest symbol forwards from our current position. */
1937 paux->require_sec = TRUE;
1938 sym = (asymbol *) find_symbol_for_address (section->vma + addr_offset,
1939 (struct disassemble_info *) inf,
1940 &place);
1941 paux->require_sec = FALSE;
1943 /* PR 9774: If the target used signed addresses then we must make
1944 sure that we sign extend the value that we calculate for 'addr'
1945 in the loop below. */
1946 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
1947 && (bed = get_elf_backend_data (abfd)) != NULL
1948 && bed->sign_extend_vma)
1949 sign_adjust = (bfd_vma) 1 << (bed->s->arch_size - 1);
1951 /* Disassemble a block of instructions up to the address associated with
1952 the symbol we have just found. Then print the symbol and find the
1953 next symbol on. Repeat until we have disassembled the entire section
1954 or we have reached the end of the address range we are interested in. */
1955 while (addr_offset < stop_offset)
1957 bfd_vma addr;
1958 asymbol *nextsym;
1959 unsigned long nextstop_offset;
1960 bfd_boolean insns;
1962 addr = section->vma + addr_offset;
1963 addr = ((addr & ((sign_adjust << 1) - 1)) ^ sign_adjust) - sign_adjust;
1965 if (sym != NULL && bfd_asymbol_value (sym) <= addr)
1967 int x;
1969 for (x = place;
1970 (x < sorted_symcount
1971 && (bfd_asymbol_value (sorted_syms[x]) <= addr));
1972 ++x)
1973 continue;
1975 pinfo->symbols = sorted_syms + place;
1976 pinfo->num_symbols = x - place;
1977 pinfo->symtab_pos = place;
1979 else
1981 pinfo->symbols = NULL;
1982 pinfo->num_symbols = 0;
1983 pinfo->symtab_pos = -1;
1986 if (! prefix_addresses)
1988 pinfo->fprintf_func (pinfo->stream, "\n");
1989 objdump_print_addr_with_sym (abfd, section, sym, addr,
1990 pinfo, FALSE);
1991 pinfo->fprintf_func (pinfo->stream, ":\n");
1994 if (sym != NULL && bfd_asymbol_value (sym) > addr)
1995 nextsym = sym;
1996 else if (sym == NULL)
1997 nextsym = NULL;
1998 else
2000 #define is_valid_next_sym(SYM) \
2001 ((SYM)->section == section \
2002 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
2003 && pinfo->symbol_is_valid (SYM, pinfo))
2005 /* Search forward for the next appropriate symbol in
2006 SECTION. Note that all the symbols are sorted
2007 together into one big array, and that some sections
2008 may have overlapping addresses. */
2009 while (place < sorted_symcount
2010 && ! is_valid_next_sym (sorted_syms [place]))
2011 ++place;
2013 if (place >= sorted_symcount)
2014 nextsym = NULL;
2015 else
2016 nextsym = sorted_syms[place];
2019 if (sym != NULL && bfd_asymbol_value (sym) > addr)
2020 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
2021 else if (nextsym == NULL)
2022 nextstop_offset = stop_offset;
2023 else
2024 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
2026 if (nextstop_offset > stop_offset
2027 || nextstop_offset <= addr_offset)
2028 nextstop_offset = stop_offset;
2030 /* If a symbol is explicitly marked as being an object
2031 rather than a function, just dump the bytes without
2032 disassembling them. */
2033 if (disassemble_all
2034 || sym == NULL
2035 || sym->section != section
2036 || bfd_asymbol_value (sym) > addr
2037 || ((sym->flags & BSF_OBJECT) == 0
2038 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
2039 == NULL)
2040 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
2041 == NULL))
2042 || (sym->flags & BSF_FUNCTION) != 0)
2043 insns = TRUE;
2044 else
2045 insns = FALSE;
2047 disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
2048 addr_offset, nextstop_offset,
2049 rel_offset, &rel_pp, rel_ppend);
2051 addr_offset = nextstop_offset;
2052 sym = nextsym;
2055 free (data);
2057 if (rel_ppstart != NULL)
2058 free (rel_ppstart);
2061 /* Disassemble the contents of an object file. */
2063 static void
2064 disassemble_data (bfd *abfd)
2066 struct disassemble_info disasm_info;
2067 struct objdump_disasm_info aux;
2068 long i;
2070 print_files = NULL;
2071 prev_functionname = NULL;
2072 prev_line = -1;
2074 /* We make a copy of syms to sort. We don't want to sort syms
2075 because that will screw up the relocs. */
2076 sorted_symcount = symcount ? symcount : dynsymcount;
2077 sorted_syms = (asymbol **) xmalloc ((sorted_symcount + synthcount)
2078 * sizeof (asymbol *));
2079 memcpy (sorted_syms, symcount ? syms : dynsyms,
2080 sorted_symcount * sizeof (asymbol *));
2082 sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
2084 for (i = 0; i < synthcount; ++i)
2086 sorted_syms[sorted_symcount] = synthsyms + i;
2087 ++sorted_symcount;
2090 /* Sort the symbols into section and symbol order. */
2091 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
2093 init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
2095 disasm_info.application_data = (void *) &aux;
2096 aux.abfd = abfd;
2097 aux.require_sec = FALSE;
2098 aux.dynrelbuf = NULL;
2099 aux.dynrelcount = 0;
2100 aux.reloc = NULL;
2102 disasm_info.print_address_func = objdump_print_address;
2103 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
2105 if (machine != NULL)
2107 const bfd_arch_info_type *inf = bfd_scan_arch (machine);
2109 if (inf == NULL)
2110 fatal (_("Can't use supplied machine %s"), machine);
2112 abfd->arch_info = inf;
2115 if (endian != BFD_ENDIAN_UNKNOWN)
2117 struct bfd_target *xvec;
2119 xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
2120 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
2121 xvec->byteorder = endian;
2122 abfd->xvec = xvec;
2125 /* Use libopcodes to locate a suitable disassembler. */
2126 aux.disassemble_fn = disassembler (abfd);
2127 if (!aux.disassemble_fn)
2129 non_fatal (_("Can't disassemble for architecture %s\n"),
2130 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
2131 exit_status = 1;
2132 return;
2135 disasm_info.flavour = bfd_get_flavour (abfd);
2136 disasm_info.arch = bfd_get_arch (abfd);
2137 disasm_info.mach = bfd_get_mach (abfd);
2138 disasm_info.disassembler_options = disassembler_options;
2139 disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
2140 disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
2141 disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
2142 disasm_info.disassembler_needs_relocs = FALSE;
2144 if (bfd_big_endian (abfd))
2145 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
2146 else if (bfd_little_endian (abfd))
2147 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
2148 else
2149 /* ??? Aborting here seems too drastic. We could default to big or little
2150 instead. */
2151 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
2153 /* Allow the target to customize the info structure. */
2154 disassemble_init_for_target (& disasm_info);
2156 /* Pre-load the dynamic relocs if we are going
2157 to be dumping them along with the disassembly. */
2158 if (dump_dynamic_reloc_info)
2160 long relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2162 if (relsize < 0)
2163 bfd_fatal (bfd_get_filename (abfd));
2165 if (relsize > 0)
2167 aux.dynrelbuf = (arelent **) xmalloc (relsize);
2168 aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
2169 aux.dynrelbuf,
2170 dynsyms);
2171 if (aux.dynrelcount < 0)
2172 bfd_fatal (bfd_get_filename (abfd));
2174 /* Sort the relocs by address. */
2175 qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
2176 compare_relocs);
2179 disasm_info.symtab = sorted_syms;
2180 disasm_info.symtab_size = sorted_symcount;
2182 bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
2184 if (aux.dynrelbuf != NULL)
2185 free (aux.dynrelbuf);
2186 free (sorted_syms);
2189 static int
2190 load_specific_debug_section (enum dwarf_section_display_enum debug,
2191 asection *sec, void *file)
2193 struct dwarf_section *section = &debug_displays [debug].section;
2194 bfd *abfd = (bfd *) file;
2195 bfd_boolean ret;
2196 int section_is_compressed;
2198 /* If it is already loaded, do nothing. */
2199 if (section->start != NULL)
2200 return 1;
2202 section_is_compressed = section->name == section->compressed_name;
2204 section->address = 0;
2205 section->size = bfd_get_section_size (sec);
2206 section->start = (unsigned char *) xmalloc (section->size);
2208 ret = bfd_get_section_contents (abfd, sec, section->start, 0,
2209 section->size);
2211 if (! ret)
2213 free_debug_section (debug);
2214 printf (_("\nCan't get contents for section '%s'.\n"),
2215 section->name);
2216 return 0;
2219 if (section_is_compressed)
2221 bfd_size_type size = section->size;
2222 if (! bfd_uncompress_section_contents (&section->start, &size))
2224 free_debug_section (debug);
2225 printf (_("\nCan't uncompress section '%s'.\n"), section->name);
2226 return 0;
2228 section->size = size;
2231 if (is_relocatable && debug_displays [debug].relocate)
2233 /* We want to relocate the data we've already read (and
2234 decompressed), so we store a pointer to the data in
2235 the bfd_section, and tell it that the contents are
2236 already in memory. */
2237 sec->contents = section->start;
2238 sec->flags |= SEC_IN_MEMORY;
2239 sec->size = section->size;
2241 ret = bfd_simple_get_relocated_section_contents (abfd,
2242 sec,
2243 section->start,
2244 syms) != NULL;
2246 if (! ret)
2248 free_debug_section (debug);
2249 printf (_("\nCan't get contents for section '%s'.\n"),
2250 section->name);
2251 return 0;
2255 return 1;
2259 load_debug_section (enum dwarf_section_display_enum debug, void *file)
2261 struct dwarf_section *section = &debug_displays [debug].section;
2262 bfd *abfd = (bfd *) file;
2263 asection *sec;
2265 /* If it is already loaded, do nothing. */
2266 if (section->start != NULL)
2267 return 1;
2269 /* Locate the debug section. */
2270 sec = bfd_get_section_by_name (abfd, section->uncompressed_name);
2271 if (sec != NULL)
2272 section->name = section->uncompressed_name;
2273 else
2275 sec = bfd_get_section_by_name (abfd, section->compressed_name);
2276 if (sec != NULL)
2277 section->name = section->compressed_name;
2279 if (sec == NULL)
2280 return 0;
2282 return load_specific_debug_section (debug, sec, file);
2285 void
2286 free_debug_section (enum dwarf_section_display_enum debug)
2288 struct dwarf_section *section = &debug_displays [debug].section;
2290 if (section->start == NULL)
2291 return;
2293 free ((char *) section->start);
2294 section->start = NULL;
2295 section->address = 0;
2296 section->size = 0;
2299 static void
2300 dump_dwarf_section (bfd *abfd, asection *section,
2301 void *arg ATTRIBUTE_UNUSED)
2303 const char *name = bfd_get_section_name (abfd, section);
2304 const char *match;
2305 int i;
2307 if (CONST_STRNEQ (name, ".gnu.linkonce.wi."))
2308 match = ".debug_info";
2309 else
2310 match = name;
2312 for (i = 0; i < max; i++)
2313 if ((strcmp (debug_displays [i].section.uncompressed_name, match) == 0
2314 || strcmp (debug_displays [i].section.compressed_name, match) == 0)
2315 && debug_displays [i].enabled != NULL
2316 && *debug_displays [i].enabled)
2318 struct dwarf_section *sec = &debug_displays [i].section;
2320 if (strcmp (sec->uncompressed_name, match) == 0)
2321 sec->name = sec->uncompressed_name;
2322 else
2323 sec->name = sec->compressed_name;
2324 if (load_specific_debug_section ((enum dwarf_section_display_enum) i,
2325 section, abfd))
2327 debug_displays [i].display (sec, abfd);
2329 if (i != info && i != abbrev)
2330 free_debug_section ((enum dwarf_section_display_enum) i);
2332 break;
2336 /* Dump the dwarf debugging information. */
2338 static void
2339 dump_dwarf (bfd *abfd)
2341 is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2343 eh_addr_size = bfd_arch_bits_per_address (abfd) / 8;
2345 if (bfd_big_endian (abfd))
2346 byte_get = byte_get_big_endian;
2347 else if (bfd_little_endian (abfd))
2348 byte_get = byte_get_little_endian;
2349 else
2350 abort ();
2352 switch (bfd_get_arch (abfd))
2354 case bfd_arch_i386:
2355 switch (bfd_get_mach (abfd))
2357 case bfd_mach_x86_64:
2358 case bfd_mach_x86_64_intel_syntax:
2359 init_dwarf_regnames_x86_64 ();
2360 break;
2362 default:
2363 init_dwarf_regnames_i386 ();
2364 break;
2366 break;
2368 default:
2369 break;
2372 bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
2374 free_debug_memory ();
2377 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
2378 it. Return NULL on failure. */
2380 static char *
2381 read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
2383 asection *stabsect;
2384 bfd_size_type size;
2385 char *contents;
2387 stabsect = bfd_get_section_by_name (abfd, sect_name);
2388 if (stabsect == NULL)
2390 printf (_("No %s section present\n\n"), sect_name);
2391 return FALSE;
2394 size = bfd_section_size (abfd, stabsect);
2395 contents = (char *) xmalloc (size);
2397 if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
2399 non_fatal (_("Reading %s section of %s failed: %s"),
2400 sect_name, bfd_get_filename (abfd),
2401 bfd_errmsg (bfd_get_error ()));
2402 free (contents);
2403 exit_status = 1;
2404 return NULL;
2407 *size_ptr = size;
2409 return contents;
2412 /* Stabs entries use a 12 byte format:
2413 4 byte string table index
2414 1 byte stab type
2415 1 byte stab other field
2416 2 byte stab desc field
2417 4 byte stab value
2418 FIXME: This will have to change for a 64 bit object format. */
2420 #define STRDXOFF (0)
2421 #define TYPEOFF (4)
2422 #define OTHEROFF (5)
2423 #define DESCOFF (6)
2424 #define VALOFF (8)
2425 #define STABSIZE (12)
2427 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
2428 using string table section STRSECT_NAME (in `strtab'). */
2430 static void
2431 print_section_stabs (bfd *abfd,
2432 const char *stabsect_name,
2433 unsigned *string_offset_ptr)
2435 int i;
2436 unsigned file_string_table_offset = 0;
2437 unsigned next_file_string_table_offset = *string_offset_ptr;
2438 bfd_byte *stabp, *stabs_end;
2440 stabp = stabs;
2441 stabs_end = stabp + stab_size;
2443 printf (_("Contents of %s section:\n\n"), stabsect_name);
2444 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
2446 /* Loop through all symbols and print them.
2448 We start the index at -1 because there is a dummy symbol on
2449 the front of stabs-in-{coff,elf} sections that supplies sizes. */
2450 for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
2452 const char *name;
2453 unsigned long strx;
2454 unsigned char type, other;
2455 unsigned short desc;
2456 bfd_vma value;
2458 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
2459 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
2460 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
2461 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
2462 value = bfd_h_get_32 (abfd, stabp + VALOFF);
2464 printf ("\n%-6d ", i);
2465 /* Either print the stab name, or, if unnamed, print its number
2466 again (makes consistent formatting for tools like awk). */
2467 name = bfd_get_stab_name (type);
2468 if (name != NULL)
2469 printf ("%-6s", name);
2470 else if (type == N_UNDF)
2471 printf ("HdrSym");
2472 else
2473 printf ("%-6d", type);
2474 printf (" %-6d %-6d ", other, desc);
2475 bfd_printf_vma (abfd, value);
2476 printf (" %-6lu", strx);
2478 /* Symbols with type == 0 (N_UNDF) specify the length of the
2479 string table associated with this file. We use that info
2480 to know how to relocate the *next* file's string table indices. */
2481 if (type == N_UNDF)
2483 file_string_table_offset = next_file_string_table_offset;
2484 next_file_string_table_offset += value;
2486 else
2488 /* Using the (possibly updated) string table offset, print the
2489 string (if any) associated with this symbol. */
2490 if ((strx + file_string_table_offset) < stabstr_size)
2491 printf (" %s", &strtab[strx + file_string_table_offset]);
2492 else
2493 printf (" *");
2496 printf ("\n\n");
2497 *string_offset_ptr = next_file_string_table_offset;
2500 typedef struct
2502 const char * section_name;
2503 const char * string_section_name;
2504 unsigned string_offset;
2506 stab_section_names;
2508 static void
2509 find_stabs_section (bfd *abfd, asection *section, void *names)
2511 int len;
2512 stab_section_names * sought = (stab_section_names *) names;
2514 /* Check for section names for which stabsect_name is a prefix, to
2515 handle .stab.N, etc. */
2516 len = strlen (sought->section_name);
2518 /* If the prefix matches, and the files section name ends with a
2519 nul or a digit, then we match. I.e., we want either an exact
2520 match or a section followed by a number. */
2521 if (strncmp (sought->section_name, section->name, len) == 0
2522 && (section->name[len] == 0
2523 || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
2525 if (strtab == NULL)
2526 strtab = read_section_stabs (abfd, sought->string_section_name,
2527 &stabstr_size);
2529 if (strtab)
2531 stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
2532 &stab_size);
2533 if (stabs)
2534 print_section_stabs (abfd, section->name, &sought->string_offset);
2539 static void
2540 dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name)
2542 stab_section_names s;
2544 s.section_name = stabsect_name;
2545 s.string_section_name = strsect_name;
2546 s.string_offset = 0;
2548 bfd_map_over_sections (abfd, find_stabs_section, & s);
2550 free (strtab);
2551 strtab = NULL;
2554 /* Dump the any sections containing stabs debugging information. */
2556 static void
2557 dump_stabs (bfd *abfd)
2559 dump_stabs_section (abfd, ".stab", ".stabstr");
2560 dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr");
2561 dump_stabs_section (abfd, ".stab.index", ".stab.indexstr");
2563 /* For Darwin. */
2564 dump_stabs_section (abfd, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr");
2566 dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
2569 static void
2570 dump_bfd_header (bfd *abfd)
2572 char *comma = "";
2574 printf (_("architecture: %s, "),
2575 bfd_printable_arch_mach (bfd_get_arch (abfd),
2576 bfd_get_mach (abfd)));
2577 printf (_("flags 0x%08x:\n"), abfd->flags);
2579 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2580 PF (HAS_RELOC, "HAS_RELOC");
2581 PF (EXEC_P, "EXEC_P");
2582 PF (HAS_LINENO, "HAS_LINENO");
2583 PF (HAS_DEBUG, "HAS_DEBUG");
2584 PF (HAS_SYMS, "HAS_SYMS");
2585 PF (HAS_LOCALS, "HAS_LOCALS");
2586 PF (DYNAMIC, "DYNAMIC");
2587 PF (WP_TEXT, "WP_TEXT");
2588 PF (D_PAGED, "D_PAGED");
2589 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
2590 PF (HAS_LOAD_PAGE, "HAS_LOAD_PAGE");
2591 printf (_("\nstart address 0x"));
2592 bfd_printf_vma (abfd, abfd->start_address);
2593 printf ("\n");
2597 static void
2598 dump_bfd_private_header (bfd *abfd)
2600 bfd_print_private_bfd_data (abfd, stdout);
2604 /* Display a section in hexadecimal format with associated characters.
2605 Each line prefixed by the zero padded address. */
2607 static void
2608 dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
2610 bfd_byte *data = 0;
2611 bfd_size_type datasize;
2612 bfd_size_type addr_offset;
2613 bfd_size_type start_offset;
2614 bfd_size_type stop_offset;
2615 unsigned int opb = bfd_octets_per_byte (abfd);
2616 /* Bytes per line. */
2617 const int onaline = 16;
2618 char buf[64];
2619 int count;
2620 int width;
2622 if ((section->flags & SEC_HAS_CONTENTS) == 0)
2623 return;
2625 if (! process_section_p (section))
2626 return;
2628 if ((datasize = bfd_section_size (abfd, section)) == 0)
2629 return;
2631 /* Compute the address range to display. */
2632 if (start_address == (bfd_vma) -1
2633 || start_address < section->vma)
2634 start_offset = 0;
2635 else
2636 start_offset = start_address - section->vma;
2638 if (stop_address == (bfd_vma) -1)
2639 stop_offset = datasize / opb;
2640 else
2642 if (stop_address < section->vma)
2643 stop_offset = 0;
2644 else
2645 stop_offset = stop_address - section->vma;
2647 if (stop_offset > datasize / opb)
2648 stop_offset = datasize / opb;
2651 if (start_offset >= stop_offset)
2652 return;
2654 printf (_("Contents of section %s:"), section->name);
2655 if (display_file_offsets)
2656 printf (_(" (Starting at file offset: 0x%lx)"),
2657 (unsigned long) (section->filepos + start_offset));
2658 printf ("\n");
2660 data = (bfd_byte *) xmalloc (datasize);
2662 bfd_get_section_contents (abfd, section, data, 0, datasize);
2664 width = 4;
2666 bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
2667 if (strlen (buf) >= sizeof (buf))
2668 abort ();
2670 count = 0;
2671 while (buf[count] == '0' && buf[count+1] != '\0')
2672 count++;
2673 count = strlen (buf) - count;
2674 if (count > width)
2675 width = count;
2677 bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
2678 if (strlen (buf) >= sizeof (buf))
2679 abort ();
2681 count = 0;
2682 while (buf[count] == '0' && buf[count+1] != '\0')
2683 count++;
2684 count = strlen (buf) - count;
2685 if (count > width)
2686 width = count;
2688 for (addr_offset = start_offset;
2689 addr_offset < stop_offset; addr_offset += onaline / opb)
2691 bfd_size_type j;
2693 bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
2694 count = strlen (buf);
2695 if ((size_t) count >= sizeof (buf))
2696 abort ();
2698 putchar (' ');
2699 while (count < width)
2701 putchar ('0');
2702 count++;
2704 fputs (buf + count - width, stdout);
2705 putchar (' ');
2707 for (j = addr_offset * opb;
2708 j < addr_offset * opb + onaline; j++)
2710 if (j < stop_offset * opb)
2711 printf ("%02x", (unsigned) (data[j]));
2712 else
2713 printf (" ");
2714 if ((j & 3) == 3)
2715 printf (" ");
2718 printf (" ");
2719 for (j = addr_offset * opb;
2720 j < addr_offset * opb + onaline; j++)
2722 if (j >= stop_offset * opb)
2723 printf (" ");
2724 else
2725 printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
2727 putchar ('\n');
2729 free (data);
2732 /* Actually display the various requested regions. */
2734 static void
2735 dump_data (bfd *abfd)
2737 bfd_map_over_sections (abfd, dump_section, NULL);
2740 /* Should perhaps share code and display with nm? */
2742 static void
2743 dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
2745 asymbol **current;
2746 long max_count;
2747 long count;
2749 if (dynamic)
2751 current = dynsyms;
2752 max_count = dynsymcount;
2753 printf ("DYNAMIC SYMBOL TABLE:\n");
2755 else
2757 current = syms;
2758 max_count = symcount;
2759 printf ("SYMBOL TABLE:\n");
2762 if (max_count == 0)
2763 printf (_("no symbols\n"));
2765 for (count = 0; count < max_count; count++)
2767 bfd *cur_bfd;
2769 if (*current == NULL)
2770 printf (_("no information for symbol number %ld\n"), count);
2772 else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
2773 printf (_("could not determine the type of symbol number %ld\n"),
2774 count);
2776 else if (process_section_p ((* current)->section)
2777 && (dump_special_syms
2778 || !bfd_is_target_special_symbol (cur_bfd, *current)))
2780 const char *name = (*current)->name;
2782 if (do_demangle && name != NULL && *name != '\0')
2784 char *alloc;
2786 /* If we want to demangle the name, we demangle it
2787 here, and temporarily clobber it while calling
2788 bfd_print_symbol. FIXME: This is a gross hack. */
2789 alloc = bfd_demangle (cur_bfd, name, DMGL_ANSI | DMGL_PARAMS);
2790 if (alloc != NULL)
2791 (*current)->name = alloc;
2792 bfd_print_symbol (cur_bfd, stdout, *current,
2793 bfd_print_symbol_all);
2794 if (alloc != NULL)
2796 (*current)->name = name;
2797 free (alloc);
2800 else
2801 bfd_print_symbol (cur_bfd, stdout, *current,
2802 bfd_print_symbol_all);
2803 printf ("\n");
2806 current++;
2808 printf ("\n\n");
2811 static void
2812 dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount)
2814 arelent **p;
2815 char *last_filename, *last_functionname;
2816 unsigned int last_line;
2818 /* Get column headers lined up reasonably. */
2820 static int width;
2822 if (width == 0)
2824 char buf[30];
2826 bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
2827 width = strlen (buf) - 7;
2829 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2832 last_filename = NULL;
2833 last_functionname = NULL;
2834 last_line = 0;
2836 for (p = relpp; relcount && *p != NULL; p++, relcount--)
2838 arelent *q = *p;
2839 const char *filename, *functionname;
2840 unsigned int linenumber;
2841 const char *sym_name;
2842 const char *section_name;
2844 if (start_address != (bfd_vma) -1
2845 && q->address < start_address)
2846 continue;
2847 if (stop_address != (bfd_vma) -1
2848 && q->address > stop_address)
2849 continue;
2851 if (with_line_numbers
2852 && sec != NULL
2853 && bfd_find_nearest_line (abfd, sec, syms, q->address,
2854 &filename, &functionname, &linenumber))
2856 if (functionname != NULL
2857 && (last_functionname == NULL
2858 || strcmp (functionname, last_functionname) != 0))
2860 printf ("%s():\n", functionname);
2861 if (last_functionname != NULL)
2862 free (last_functionname);
2863 last_functionname = xstrdup (functionname);
2866 if (linenumber > 0
2867 && (linenumber != last_line
2868 || (filename != NULL
2869 && last_filename != NULL
2870 && strcmp (filename, last_filename) != 0)))
2872 printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
2873 last_line = linenumber;
2874 if (last_filename != NULL)
2875 free (last_filename);
2876 if (filename == NULL)
2877 last_filename = NULL;
2878 else
2879 last_filename = xstrdup (filename);
2883 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2885 sym_name = (*(q->sym_ptr_ptr))->name;
2886 section_name = (*(q->sym_ptr_ptr))->section->name;
2888 else
2890 sym_name = NULL;
2891 section_name = NULL;
2894 bfd_printf_vma (abfd, q->address);
2895 if (q->howto == NULL)
2896 printf (" *unknown* ");
2897 else if (q->howto->name)
2898 printf (" %-16s ", q->howto->name);
2899 else
2900 printf (" %-16d ", q->howto->type);
2902 if (sym_name)
2904 objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
2906 else
2908 if (section_name == NULL)
2909 section_name = "*unknown*";
2910 printf ("[%s]", section_name);
2913 if (q->addend)
2915 printf ("+0x");
2916 bfd_printf_vma (abfd, q->addend);
2919 printf ("\n");
2923 static void
2924 dump_relocs_in_section (bfd *abfd,
2925 asection *section,
2926 void *dummy ATTRIBUTE_UNUSED)
2928 arelent **relpp;
2929 long relcount;
2930 long relsize;
2932 if ( bfd_is_abs_section (section)
2933 || bfd_is_und_section (section)
2934 || bfd_is_com_section (section)
2935 || (! process_section_p (section))
2936 || ((section->flags & SEC_RELOC) == 0))
2937 return;
2939 relsize = bfd_get_reloc_upper_bound (abfd, section);
2940 if (relsize < 0)
2941 bfd_fatal (bfd_get_filename (abfd));
2943 printf ("RELOCATION RECORDS FOR [%s]:", section->name);
2945 if (relsize == 0)
2947 printf (" (none)\n\n");
2948 return;
2951 relpp = (arelent **) xmalloc (relsize);
2952 relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
2954 if (relcount < 0)
2955 bfd_fatal (bfd_get_filename (abfd));
2956 else if (relcount == 0)
2957 printf (" (none)\n\n");
2958 else
2960 printf ("\n");
2961 dump_reloc_set (abfd, section, relpp, relcount);
2962 printf ("\n\n");
2964 free (relpp);
2967 static void
2968 dump_relocs (bfd *abfd)
2970 bfd_map_over_sections (abfd, dump_relocs_in_section, NULL);
2973 static void
2974 dump_dynamic_relocs (bfd *abfd)
2976 long relsize;
2977 arelent **relpp;
2978 long relcount;
2980 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2981 if (relsize < 0)
2982 bfd_fatal (bfd_get_filename (abfd));
2984 printf ("DYNAMIC RELOCATION RECORDS");
2986 if (relsize == 0)
2987 printf (" (none)\n\n");
2988 else
2990 relpp = (arelent **) xmalloc (relsize);
2991 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
2993 if (relcount < 0)
2994 bfd_fatal (bfd_get_filename (abfd));
2995 else if (relcount == 0)
2996 printf (" (none)\n\n");
2997 else
2999 printf ("\n");
3000 dump_reloc_set (abfd, NULL, relpp, relcount);
3001 printf ("\n\n");
3003 free (relpp);
3007 /* Creates a table of paths, to search for source files. */
3009 static void
3010 add_include_path (const char *path)
3012 if (path[0] == 0)
3013 return;
3014 include_path_count++;
3015 include_paths = (const char **)
3016 xrealloc (include_paths, include_path_count * sizeof (*include_paths));
3017 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3018 if (path[1] == ':' && path[2] == 0)
3019 path = concat (path, ".", (const char *) 0);
3020 #endif
3021 include_paths[include_path_count - 1] = path;
3024 static void
3025 adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
3026 asection *section,
3027 void *arg)
3029 if ((section->flags & SEC_DEBUGGING) == 0)
3031 bfd_boolean *has_reloc_p = (bfd_boolean *) arg;
3032 section->vma += adjust_section_vma;
3033 if (*has_reloc_p)
3034 section->lma += adjust_section_vma;
3038 /* Dump selected contents of ABFD. */
3040 static void
3041 dump_bfd (bfd *abfd)
3043 /* If we are adjusting section VMA's, change them all now. Changing
3044 the BFD information is a hack. However, we must do it, or
3045 bfd_find_nearest_line will not do the right thing. */
3046 if (adjust_section_vma != 0)
3048 bfd_boolean has_reloc = (abfd->flags & HAS_RELOC);
3049 bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
3052 if (! dump_debugging_tags)
3053 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
3054 abfd->xvec->name);
3055 if (dump_ar_hdrs)
3056 print_arelt_descr (stdout, abfd, TRUE);
3057 if (dump_file_header)
3058 dump_bfd_header (abfd);
3059 if (dump_private_headers)
3060 dump_bfd_private_header (abfd);
3061 if (! dump_debugging_tags)
3062 putchar ('\n');
3063 if (dump_section_headers)
3064 dump_headers (abfd);
3066 if (dump_symtab
3067 || dump_reloc_info
3068 || disassemble
3069 || dump_debugging
3070 || dump_dwarf_section_info)
3071 syms = slurp_symtab (abfd);
3072 if (dump_dynamic_symtab || dump_dynamic_reloc_info
3073 || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
3074 dynsyms = slurp_dynamic_symtab (abfd);
3075 if (disassemble)
3077 synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
3078 dynsymcount, dynsyms, &synthsyms);
3079 if (synthcount < 0)
3080 synthcount = 0;
3083 if (dump_symtab)
3084 dump_symbols (abfd, FALSE);
3085 if (dump_dynamic_symtab)
3086 dump_symbols (abfd, TRUE);
3087 if (dump_dwarf_section_info)
3088 dump_dwarf (abfd);
3089 if (dump_stab_section_info)
3090 dump_stabs (abfd);
3091 if (dump_reloc_info && ! disassemble)
3092 dump_relocs (abfd);
3093 if (dump_dynamic_reloc_info && ! disassemble)
3094 dump_dynamic_relocs (abfd);
3095 if (dump_section_contents)
3096 dump_data (abfd);
3097 if (disassemble)
3098 disassemble_data (abfd);
3100 if (dump_debugging)
3102 void *dhandle;
3104 dhandle = read_debugging_info (abfd, syms, symcount, TRUE);
3105 if (dhandle != NULL)
3107 if (!print_debugging_info (stdout, dhandle, abfd, syms,
3108 bfd_demangle,
3109 dump_debugging_tags ? TRUE : FALSE))
3111 non_fatal (_("%s: printing debugging information failed"),
3112 bfd_get_filename (abfd));
3113 exit_status = 1;
3116 /* PR 6483: If there was no STABS or IEEE debug
3117 info in the file, try DWARF instead. */
3118 else if (! dump_dwarf_section_info)
3120 dump_dwarf (abfd);
3124 if (syms)
3126 free (syms);
3127 syms = NULL;
3130 if (dynsyms)
3132 free (dynsyms);
3133 dynsyms = NULL;
3136 if (synthsyms)
3138 free (synthsyms);
3139 synthsyms = NULL;
3142 symcount = 0;
3143 dynsymcount = 0;
3144 synthcount = 0;
3147 static void
3148 display_bfd (bfd *abfd)
3150 char **matching;
3152 if (bfd_check_format_matches (abfd, bfd_object, &matching))
3154 dump_bfd (abfd);
3155 return;
3158 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3160 nonfatal (bfd_get_filename (abfd));
3161 list_matching_formats (matching);
3162 free (matching);
3163 return;
3166 if (bfd_get_error () != bfd_error_file_not_recognized)
3168 nonfatal (bfd_get_filename (abfd));
3169 return;
3172 if (bfd_check_format_matches (abfd, bfd_core, &matching))
3174 dump_bfd (abfd);
3175 return;
3178 nonfatal (bfd_get_filename (abfd));
3180 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3182 list_matching_formats (matching);
3183 free (matching);
3187 static void
3188 display_file (char *filename, char *target)
3190 bfd *file;
3191 bfd *arfile = NULL;
3193 if (get_file_size (filename) < 1)
3195 exit_status = 1;
3196 return;
3199 file = bfd_openr (filename, target);
3200 if (file == NULL)
3202 nonfatal (filename);
3203 return;
3206 /* If the file is an archive, process all of its elements. */
3207 if (bfd_check_format (file, bfd_archive))
3209 bfd *last_arfile = NULL;
3211 printf (_("In archive %s:\n"), bfd_get_filename (file));
3212 for (;;)
3214 bfd_set_error (bfd_error_no_error);
3216 arfile = bfd_openr_next_archived_file (file, arfile);
3217 if (arfile == NULL)
3219 if (bfd_get_error () != bfd_error_no_more_archived_files)
3220 nonfatal (bfd_get_filename (file));
3221 break;
3224 display_bfd (arfile);
3226 if (last_arfile != NULL)
3227 bfd_close (last_arfile);
3228 last_arfile = arfile;
3231 if (last_arfile != NULL)
3232 bfd_close (last_arfile);
3234 else
3235 display_bfd (file);
3237 bfd_close (file);
3241 main (int argc, char **argv)
3243 int c;
3244 char *target = default_target;
3245 bfd_boolean seenflag = FALSE;
3247 #if defined (HAVE_SETLOCALE)
3248 #if defined (HAVE_LC_MESSAGES)
3249 setlocale (LC_MESSAGES, "");
3250 #endif
3251 setlocale (LC_CTYPE, "");
3252 #endif
3254 bindtextdomain (PACKAGE, LOCALEDIR);
3255 textdomain (PACKAGE);
3257 program_name = *argv;
3258 xmalloc_set_program_name (program_name);
3260 START_PROGRESS (program_name, 0);
3262 expandargv (&argc, &argv);
3264 bfd_init ();
3265 set_default_bfd_target ();
3267 while ((c = getopt_long (argc, argv,
3268 "pib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::",
3269 long_options, (int *) 0))
3270 != EOF)
3272 switch (c)
3274 case 0:
3275 break; /* We've been given a long option. */
3276 case 'm':
3277 machine = optarg;
3278 break;
3279 case 'M':
3280 if (disassembler_options)
3281 /* Ignore potential memory leak for now. */
3282 disassembler_options = concat (disassembler_options, ",",
3283 optarg, (const char *) NULL);
3284 else
3285 disassembler_options = optarg;
3286 break;
3287 case 'j':
3288 add_only (optarg);
3289 break;
3290 case 'F':
3291 display_file_offsets = TRUE;
3292 break;
3293 case 'l':
3294 with_line_numbers = TRUE;
3295 break;
3296 case 'b':
3297 target = optarg;
3298 break;
3299 case 'C':
3300 do_demangle = TRUE;
3301 if (optarg != NULL)
3303 enum demangling_styles style;
3305 style = cplus_demangle_name_to_style (optarg);
3306 if (style == unknown_demangling)
3307 fatal (_("unknown demangling style `%s'"),
3308 optarg);
3310 cplus_demangle_set_style (style);
3312 break;
3313 case 'w':
3314 wide_output = TRUE;
3315 break;
3316 case OPTION_ADJUST_VMA:
3317 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
3318 break;
3319 case OPTION_START_ADDRESS:
3320 start_address = parse_vma (optarg, "--start-address");
3321 if ((stop_address != (bfd_vma) -1) && stop_address <= start_address)
3322 fatal (_("error: the start address should be before the end address"));
3323 break;
3324 case OPTION_STOP_ADDRESS:
3325 stop_address = parse_vma (optarg, "--stop-address");
3326 if ((start_address != (bfd_vma) -1) && stop_address <= start_address)
3327 fatal (_("error: the stop address should be after the start address"));
3328 break;
3329 case OPTION_PREFIX:
3330 prefix = optarg;
3331 prefix_length = strlen (prefix);
3332 /* Remove an unnecessary trailing '/' */
3333 while (IS_DIR_SEPARATOR (prefix[prefix_length - 1]))
3334 prefix_length--;
3335 break;
3336 case OPTION_PREFIX_STRIP:
3337 prefix_strip = atoi (optarg);
3338 if (prefix_strip < 0)
3339 fatal (_("error: prefix strip must be non-negative"));
3340 break;
3341 case OPTION_INSN_WIDTH:
3342 insn_width = strtoul (optarg, NULL, 0);
3343 if (insn_width <= 0)
3344 fatal (_("error: instruction width must be positive"));
3345 break;
3346 case 'E':
3347 if (strcmp (optarg, "B") == 0)
3348 endian = BFD_ENDIAN_BIG;
3349 else if (strcmp (optarg, "L") == 0)
3350 endian = BFD_ENDIAN_LITTLE;
3351 else
3353 non_fatal (_("unrecognized -E option"));
3354 usage (stderr, 1);
3356 break;
3357 case OPTION_ENDIAN:
3358 if (strncmp (optarg, "big", strlen (optarg)) == 0)
3359 endian = BFD_ENDIAN_BIG;
3360 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
3361 endian = BFD_ENDIAN_LITTLE;
3362 else
3364 non_fatal (_("unrecognized --endian type `%s'"), optarg);
3365 usage (stderr, 1);
3367 break;
3369 case 'f':
3370 dump_file_header = TRUE;
3371 seenflag = TRUE;
3372 break;
3373 case 'i':
3374 formats_info = TRUE;
3375 seenflag = TRUE;
3376 break;
3377 case 'I':
3378 add_include_path (optarg);
3379 break;
3380 case 'p':
3381 dump_private_headers = TRUE;
3382 seenflag = TRUE;
3383 break;
3384 case 'x':
3385 dump_private_headers = TRUE;
3386 dump_symtab = TRUE;
3387 dump_reloc_info = TRUE;
3388 dump_file_header = TRUE;
3389 dump_ar_hdrs = TRUE;
3390 dump_section_headers = TRUE;
3391 seenflag = TRUE;
3392 break;
3393 case 't':
3394 dump_symtab = TRUE;
3395 seenflag = TRUE;
3396 break;
3397 case 'T':
3398 dump_dynamic_symtab = TRUE;
3399 seenflag = TRUE;
3400 break;
3401 case 'd':
3402 disassemble = TRUE;
3403 seenflag = TRUE;
3404 break;
3405 case 'z':
3406 disassemble_zeroes = TRUE;
3407 break;
3408 case 'D':
3409 disassemble = TRUE;
3410 disassemble_all = TRUE;
3411 seenflag = TRUE;
3412 break;
3413 case 'S':
3414 disassemble = TRUE;
3415 with_source_code = TRUE;
3416 seenflag = TRUE;
3417 break;
3418 case 'g':
3419 dump_debugging = 1;
3420 seenflag = TRUE;
3421 break;
3422 case 'e':
3423 dump_debugging = 1;
3424 dump_debugging_tags = 1;
3425 do_demangle = TRUE;
3426 seenflag = TRUE;
3427 break;
3428 case 'W':
3429 dump_dwarf_section_info = TRUE;
3430 seenflag = TRUE;
3431 if (optarg)
3432 dwarf_select_sections_by_letters (optarg);
3433 else
3434 dwarf_select_sections_all ();
3435 break;
3436 case OPTION_DWARF:
3437 dump_dwarf_section_info = TRUE;
3438 seenflag = TRUE;
3439 if (optarg)
3440 dwarf_select_sections_by_names (optarg);
3441 else
3442 dwarf_select_sections_all ();
3443 break;
3444 case 'G':
3445 dump_stab_section_info = TRUE;
3446 seenflag = TRUE;
3447 break;
3448 case 's':
3449 dump_section_contents = TRUE;
3450 seenflag = TRUE;
3451 break;
3452 case 'r':
3453 dump_reloc_info = TRUE;
3454 seenflag = TRUE;
3455 break;
3456 case 'R':
3457 dump_dynamic_reloc_info = TRUE;
3458 seenflag = TRUE;
3459 break;
3460 case 'a':
3461 dump_ar_hdrs = TRUE;
3462 seenflag = TRUE;
3463 break;
3464 case 'h':
3465 dump_section_headers = TRUE;
3466 seenflag = TRUE;
3467 break;
3468 case 'H':
3469 usage (stdout, 0);
3470 seenflag = TRUE;
3471 case 'v':
3472 case 'V':
3473 show_version = TRUE;
3474 seenflag = TRUE;
3475 break;
3477 default:
3478 usage (stderr, 1);
3482 if (show_version)
3483 print_version ("objdump");
3485 if (!seenflag)
3486 usage (stderr, 2);
3488 if (formats_info)
3489 exit_status = display_info ();
3490 else
3492 if (optind == argc)
3493 display_file ("a.out", target);
3494 else
3495 for (; optind < argc;)
3496 display_file (argv[optind++], target);
3499 free_only_list ();
3501 END_PROGRESS (program_name);
3503 return exit_status;