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)
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. */
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
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. */
60 #include "safe-ctype.h"
62 #include "libiberty.h"
64 #include "filenames.h"
74 /* Internal headers for the ELF .stab-dump code - sorry. */
75 #define BYTES_IN_WORD 32
76 #include "aout/aout64.h"
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
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. */
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
137 struct objdump_disasm_info
141 bfd_boolean require_sec;
142 arelent ** dynrelbuf;
144 disassembler_ftype disassemble_fn;
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;
183 static bfd_size_type stabstr_size;
185 static bfd_boolean is_relocatable = FALSE;
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 Display DWARF info in the file\n\
210 -t, --syms Display the contents of the symbol table(s)\n\
211 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
212 -r, --reloc Display the relocation entries in the file\n\
213 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
214 @<file> Read options from <file>\n\
215 -v, --version Display this program's version number\n\
216 -i, --info List object formats and architectures supported\n\
217 -H, --help Display this information\n\
221 fprintf (stream, _("\n The following switches are optional:\n"));
222 fprintf (stream, _("\
223 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
224 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
225 -j, --section=NAME Only display information for section NAME\n\
226 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
227 -EB --endian=big Assume big endian format when disassembling\n\
228 -EL --endian=little Assume little endian format when disassembling\n\
229 --file-start-context Include context from start of file (with -S)\n\
230 -I, --include=DIR Add DIR to search list for source files\n\
231 -l, --line-numbers Include line numbers and filenames in output\n\
232 -F, --file-offsets Include file offsets when displaying information\n\
233 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
234 The STYLE, if specified, can be `auto', `gnu',\n\
235 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
237 -w, --wide Format output for more than 80 columns\n\
238 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
239 --start-address=ADDR Only process data whose address is >= ADDR\n\
240 --stop-address=ADDR Only process data whose address is <= ADDR\n\
241 --prefix-addresses Print complete address alongside disassembly\n\
242 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
243 --insn-width=WIDTH Display WIDTH bytes on a signle line for -d\n\
244 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
245 --special-syms Include special symbols in symbol dumps\n\
246 --prefix=PREFIX Add PREFIX to absolute paths for -S\n\
247 --prefix-strip=LEVEL Strip initial directory names for -S\n\
249 list_supported_targets (program_name, stream);
250 list_supported_architectures (program_name, stream);
252 disassembler_usage (stream);
254 if (REPORT_BUGS_TO[0] && status == 0)
255 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
259 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
263 OPTION_START_ADDRESS,
272 static struct option long_options[]=
274 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
275 {"all-headers", no_argument, NULL, 'x'},
276 {"private-headers", no_argument, NULL, 'p'},
277 {"architecture", required_argument, NULL, 'm'},
278 {"archive-headers", no_argument, NULL, 'a'},
279 {"debugging", no_argument, NULL, 'g'},
280 {"debugging-tags", no_argument, NULL, 'e'},
281 {"demangle", optional_argument, NULL, 'C'},
282 {"disassemble", no_argument, NULL, 'd'},
283 {"disassemble-all", no_argument, NULL, 'D'},
284 {"disassembler-options", required_argument, NULL, 'M'},
285 {"disassemble-zeroes", no_argument, NULL, 'z'},
286 {"dynamic-reloc", no_argument, NULL, 'R'},
287 {"dynamic-syms", no_argument, NULL, 'T'},
288 {"endian", required_argument, NULL, OPTION_ENDIAN},
289 {"file-headers", no_argument, NULL, 'f'},
290 {"file-offsets", no_argument, NULL, 'F'},
291 {"file-start-context", no_argument, &file_start_context, 1},
292 {"full-contents", no_argument, NULL, 's'},
293 {"headers", no_argument, NULL, 'h'},
294 {"help", no_argument, NULL, 'H'},
295 {"info", no_argument, NULL, 'i'},
296 {"line-numbers", no_argument, NULL, 'l'},
297 {"no-show-raw-insn", no_argument, &show_raw_insn, -1},
298 {"prefix-addresses", no_argument, &prefix_addresses, 1},
299 {"reloc", no_argument, NULL, 'r'},
300 {"section", required_argument, NULL, 'j'},
301 {"section-headers", no_argument, NULL, 'h'},
302 {"show-raw-insn", no_argument, &show_raw_insn, 1},
303 {"source", no_argument, NULL, 'S'},
304 {"special-syms", no_argument, &dump_special_syms, 1},
305 {"include", required_argument, NULL, 'I'},
306 {"dwarf", optional_argument, NULL, OPTION_DWARF},
307 {"stabs", no_argument, NULL, 'G'},
308 {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
309 {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
310 {"syms", no_argument, NULL, 't'},
311 {"target", required_argument, NULL, 'b'},
312 {"version", no_argument, NULL, 'V'},
313 {"wide", no_argument, NULL, 'w'},
314 {"prefix", required_argument, NULL, OPTION_PREFIX},
315 {"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP},
316 {"insn-width", required_argument, NULL, OPTION_INSN_WIDTH},
317 {0, no_argument, 0, 0}
321 nonfatal (const char *msg)
327 /* Returns TRUE if the specified section should be dumped. */
330 process_section_p (asection * section)
334 if (only_list == NULL)
337 for (only = only_list; only; only = only->next)
338 if (strcmp (only->name, section->name) == 0)
347 /* Add an entry to the 'only' list. */
350 add_only (char * name)
354 /* First check to make sure that we do not
355 already have an entry for this name. */
356 for (only = only_list; only; only = only->next)
357 if (strcmp (only->name, name) == 0)
360 only = xmalloc (sizeof * only);
363 only->next = only_list;
367 /* Release the memory used by the 'only' list.
368 PR 11225: Issue a warning message for unseen sections.
369 Only do this if none of the sections were seen. This is mainly to support
370 tools like the GAS testsuite where an object file is dumped with a list of
371 generic section names known to be present in a range of different file
375 free_only_list (void)
377 bfd_boolean at_least_one_seen = FALSE;
381 if (only_list == NULL)
384 for (only = only_list; only; only = only->next)
387 at_least_one_seen = TRUE;
391 for (only = only_list; only; only = next)
393 if (! at_least_one_seen)
395 non_fatal (_("Section '%s' mentioned in a -j option, but not found in any input file"),
406 dump_section_header (bfd *abfd, asection *section,
407 void *ignored ATTRIBUTE_UNUSED)
410 unsigned int opb = bfd_octets_per_byte (abfd);
412 /* Ignore linker created section. See elfNN_ia64_object_p in
414 if (section->flags & SEC_LINKER_CREATED)
417 /* PR 10413: Skip sections that we are ignoring. */
418 if (! process_section_p (section))
421 printf ("%3d %-13s %08lx ", section->index,
422 bfd_get_section_name (abfd, section),
423 (unsigned long) bfd_section_size (abfd, section) / opb);
424 bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
426 bfd_printf_vma (abfd, section->lma);
427 printf (" %08lx 2**%u", (unsigned long) section->filepos,
428 bfd_get_section_alignment (abfd, section));
434 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
436 PF (SEC_HAS_CONTENTS, "CONTENTS");
437 PF (SEC_ALLOC, "ALLOC");
438 PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
439 PF (SEC_LOAD, "LOAD");
440 PF (SEC_RELOC, "RELOC");
441 PF (SEC_READONLY, "READONLY");
442 PF (SEC_CODE, "CODE");
443 PF (SEC_DATA, "DATA");
445 PF (SEC_DEBUGGING, "DEBUGGING");
446 PF (SEC_NEVER_LOAD, "NEVER_LOAD");
447 PF (SEC_EXCLUDE, "EXCLUDE");
448 PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
449 if (bfd_get_arch (abfd) == bfd_arch_tic54x)
451 PF (SEC_TIC54X_BLOCK, "BLOCK");
452 PF (SEC_TIC54X_CLINK, "CLINK");
454 PF (SEC_SMALL_DATA, "SMALL_DATA");
455 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
456 PF (SEC_COFF_SHARED, "SHARED");
457 PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
458 PF (SEC_GROUP, "GROUP");
460 if ((section->flags & SEC_LINK_ONCE) != 0)
463 struct coff_comdat_info *comdat;
465 switch (section->flags & SEC_LINK_DUPLICATES)
469 case SEC_LINK_DUPLICATES_DISCARD:
470 ls = "LINK_ONCE_DISCARD";
472 case SEC_LINK_DUPLICATES_ONE_ONLY:
473 ls = "LINK_ONCE_ONE_ONLY";
475 case SEC_LINK_DUPLICATES_SAME_SIZE:
476 ls = "LINK_ONCE_SAME_SIZE";
478 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
479 ls = "LINK_ONCE_SAME_CONTENTS";
482 printf ("%s%s", comma, ls);
484 comdat = bfd_coff_get_comdat_section (abfd, section);
486 printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
496 dump_headers (bfd *abfd)
498 printf (_("Sections:\n"));
501 printf (_("Idx Name Size VMA LMA File off Algn"));
503 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
504 if (bfd_get_arch_size (abfd) == 32)
505 printf (_("Idx Name Size VMA LMA File off Algn"));
507 printf (_("Idx Name Size VMA LMA File off Algn"));
511 printf (_(" Flags"));
512 if (abfd->flags & HAS_LOAD_PAGE)
516 bfd_map_over_sections (abfd, dump_section_header, NULL);
520 slurp_symtab (bfd *abfd)
525 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
531 storage = bfd_get_symtab_upper_bound (abfd);
533 bfd_fatal (bfd_get_filename (abfd));
535 sy = (asymbol **) xmalloc (storage);
537 symcount = bfd_canonicalize_symtab (abfd, sy);
539 bfd_fatal (bfd_get_filename (abfd));
543 /* Read in the dynamic symbols. */
546 slurp_dynamic_symtab (bfd *abfd)
551 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
554 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
556 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
561 bfd_fatal (bfd_get_filename (abfd));
564 sy = (asymbol **) xmalloc (storage);
566 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
568 bfd_fatal (bfd_get_filename (abfd));
572 /* Filter out (in place) symbols that are useless for disassembly.
573 COUNT is the number of elements in SYMBOLS.
574 Return the number of useful symbols. */
577 remove_useless_symbols (asymbol **symbols, long count)
579 asymbol **in_ptr = symbols, **out_ptr = symbols;
583 asymbol *sym = *in_ptr++;
585 if (sym->name == NULL || sym->name[0] == '\0')
587 if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
589 if (bfd_is_und_section (sym->section)
590 || bfd_is_com_section (sym->section))
595 return out_ptr - symbols;
598 /* Sort symbols into value order. */
601 compare_symbols (const void *ap, const void *bp)
603 const asymbol *a = * (const asymbol **) ap;
604 const asymbol *b = * (const asymbol **) bp;
614 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
616 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
619 if (a->section > b->section)
621 else if (a->section < b->section)
624 an = bfd_asymbol_name (a);
625 bn = bfd_asymbol_name (b);
629 /* The symbols gnu_compiled and gcc2_compiled convey no real
630 information, so put them after other symbols with the same value. */
631 af = (strstr (an, "gnu_compiled") != NULL
632 || strstr (an, "gcc2_compiled") != NULL);
633 bf = (strstr (bn, "gnu_compiled") != NULL
634 || strstr (bn, "gcc2_compiled") != NULL);
641 /* We use a heuristic for the file name, to try to sort it after
642 more useful symbols. It may not work on non Unix systems, but it
643 doesn't really matter; the only difference is precisely which
644 symbol names get printed. */
646 #define file_symbol(s, sn, snl) \
647 (((s)->flags & BSF_FILE) != 0 \
648 || ((sn)[(snl) - 2] == '.' \
649 && ((sn)[(snl) - 1] == 'o' \
650 || (sn)[(snl) - 1] == 'a')))
652 af = file_symbol (a, an, anl);
653 bf = file_symbol (b, bn, bnl);
660 /* Try to sort global symbols before local symbols before function
661 symbols before debugging symbols. */
666 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
668 if ((aflags & BSF_DEBUGGING) != 0)
673 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
675 if ((aflags & BSF_FUNCTION) != 0)
680 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
682 if ((aflags & BSF_LOCAL) != 0)
687 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
689 if ((aflags & BSF_GLOBAL) != 0)
695 /* Symbols that start with '.' might be section names, so sort them
696 after symbols that don't start with '.'. */
697 if (an[0] == '.' && bn[0] != '.')
699 if (an[0] != '.' && bn[0] == '.')
702 /* Finally, if we can't distinguish them in any other way, try to
703 get consistent results by sorting the symbols by name. */
704 return strcmp (an, bn);
707 /* Sort relocs into address order. */
710 compare_relocs (const void *ap, const void *bp)
712 const arelent *a = * (const arelent **) ap;
713 const arelent *b = * (const arelent **) bp;
715 if (a->address > b->address)
717 else if (a->address < b->address)
720 /* So that associated relocations tied to the same address show up
721 in the correct order, we don't do any further sorting. */
730 /* Print an address (VMA) to the output stream in INFO.
731 If SKIP_ZEROES is TRUE, omit leading zeroes. */
734 objdump_print_value (bfd_vma vma, struct disassemble_info *inf,
735 bfd_boolean skip_zeroes)
739 struct objdump_disasm_info *aux;
741 aux = (struct objdump_disasm_info *) inf->application_data;
742 bfd_sprintf_vma (aux->abfd, buf, vma);
747 for (p = buf; *p == '0'; ++p)
752 (*inf->fprintf_func) (inf->stream, "%s", p);
755 /* Print the name of a symbol. */
758 objdump_print_symname (bfd *abfd, struct disassemble_info *inf,
765 name = bfd_asymbol_name (sym);
766 if (do_demangle && name[0] != '\0')
768 /* Demangle the name. */
769 alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
775 (*inf->fprintf_func) (inf->stream, "%s", name);
783 /* Locate a symbol given a bfd and a section (from INFO->application_data),
784 and a VMA. If INFO->application_data->require_sec is TRUE, then always
785 require the symbol to be in the section. Returns NULL if there is no
786 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
787 of the symbol in sorted_syms. */
790 find_symbol_for_address (bfd_vma vma,
791 struct disassemble_info *inf,
794 /* @@ Would it speed things up to cache the last two symbols returned,
795 and maybe their address ranges? For many processors, only one memory
796 operand can be present at a time, so the 2-entry cache wouldn't be
797 constantly churned by code doing heavy memory accesses. */
799 /* Indices in `sorted_syms'. */
801 long max_count = sorted_symcount;
803 struct objdump_disasm_info *aux;
807 bfd_boolean want_section;
809 if (sorted_symcount < 1)
812 aux = (struct objdump_disasm_info *) inf->application_data;
815 opb = inf->octets_per_byte;
817 /* Perform a binary search looking for the closest symbol to the
818 required value. We are searching the range (min, max_count]. */
819 while (min + 1 < max_count)
823 thisplace = (max_count + min) / 2;
824 sym = sorted_syms[thisplace];
826 if (bfd_asymbol_value (sym) > vma)
827 max_count = thisplace;
828 else if (bfd_asymbol_value (sym) < vma)
837 /* The symbol we want is now in min, the low end of the range we
838 were searching. If there are several symbols with the same
839 value, we want the first one. */
842 && (bfd_asymbol_value (sorted_syms[thisplace])
843 == bfd_asymbol_value (sorted_syms[thisplace - 1])))
846 /* Prefer a symbol in the current section if we have multple symbols
847 with the same value, as can occur with overlays or zero size
850 while (min < max_count
851 && (bfd_asymbol_value (sorted_syms[min])
852 == bfd_asymbol_value (sorted_syms[thisplace])))
854 if (sorted_syms[min]->section == sec
855 && inf->symbol_is_valid (sorted_syms[min], inf))
862 return sorted_syms[thisplace];
867 /* If the file is relocatable, and the symbol could be from this
868 section, prefer a symbol from this section over symbols from
869 others, even if the other symbol's value might be closer.
871 Note that this may be wrong for some symbol references if the
872 sections have overlapping memory ranges, but in that case there's
873 no way to tell what's desired without looking at the relocation
876 Also give the target a chance to reject symbols. */
877 want_section = (aux->require_sec
878 || ((abfd->flags & HAS_RELOC) != 0
879 && vma >= bfd_get_section_vma (abfd, sec)
880 && vma < (bfd_get_section_vma (abfd, sec)
881 + bfd_section_size (abfd, sec) / opb)));
882 if ((sorted_syms[thisplace]->section != sec && want_section)
883 || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
886 long newplace = sorted_symcount;
888 for (i = min - 1; i >= 0; i--)
890 if ((sorted_syms[i]->section == sec || !want_section)
891 && inf->symbol_is_valid (sorted_syms[i], inf))
893 if (newplace == sorted_symcount)
896 if (bfd_asymbol_value (sorted_syms[i])
897 != bfd_asymbol_value (sorted_syms[newplace]))
900 /* Remember this symbol and keep searching until we reach
901 an earlier address. */
906 if (newplace != sorted_symcount)
907 thisplace = newplace;
910 /* We didn't find a good symbol with a smaller value.
911 Look for one with a larger value. */
912 for (i = thisplace + 1; i < sorted_symcount; i++)
914 if ((sorted_syms[i]->section == sec || !want_section)
915 && inf->symbol_is_valid (sorted_syms[i], inf))
923 if ((sorted_syms[thisplace]->section != sec && want_section)
924 || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
925 /* There is no suitable symbol. */
932 return sorted_syms[thisplace];
935 /* Print an address and the offset to the nearest symbol. */
938 objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym,
939 bfd_vma vma, struct disassemble_info *inf,
940 bfd_boolean skip_zeroes)
942 objdump_print_value (vma, inf, skip_zeroes);
948 (*inf->fprintf_func) (inf->stream, " <%s",
949 bfd_get_section_name (abfd, sec));
950 secaddr = bfd_get_section_vma (abfd, sec);
953 (*inf->fprintf_func) (inf->stream, "-0x");
954 objdump_print_value (secaddr - vma, inf, TRUE);
956 else if (vma > secaddr)
958 (*inf->fprintf_func) (inf->stream, "+0x");
959 objdump_print_value (vma - secaddr, inf, TRUE);
961 (*inf->fprintf_func) (inf->stream, ">");
965 (*inf->fprintf_func) (inf->stream, " <");
966 objdump_print_symname (abfd, inf, sym);
967 if (bfd_asymbol_value (sym) > vma)
969 (*inf->fprintf_func) (inf->stream, "-0x");
970 objdump_print_value (bfd_asymbol_value (sym) - vma, inf, TRUE);
972 else if (vma > bfd_asymbol_value (sym))
974 (*inf->fprintf_func) (inf->stream, "+0x");
975 objdump_print_value (vma - bfd_asymbol_value (sym), inf, TRUE);
977 (*inf->fprintf_func) (inf->stream, ">");
980 if (display_file_offsets)
981 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
982 (long int)(sec->filepos + (vma - sec->vma)));
985 /* Print an address (VMA), symbolically if possible.
986 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
989 objdump_print_addr (bfd_vma vma,
990 struct disassemble_info *inf,
991 bfd_boolean skip_zeroes)
993 struct objdump_disasm_info *aux;
995 bfd_boolean skip_find = FALSE;
997 aux = (struct objdump_disasm_info *) inf->application_data;
999 if (sorted_symcount < 1)
1001 (*inf->fprintf_func) (inf->stream, "0x");
1002 objdump_print_value (vma, inf, skip_zeroes);
1004 if (display_file_offsets)
1005 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
1006 (long int)(aux->sec->filepos + (vma - aux->sec->vma)));
1010 if (aux->reloc != NULL
1011 && aux->reloc->sym_ptr_ptr != NULL
1012 && * aux->reloc->sym_ptr_ptr != NULL)
1014 sym = * aux->reloc->sym_ptr_ptr;
1016 /* Adjust the vma to the reloc. */
1017 vma += bfd_asymbol_value (sym);
1019 if (bfd_is_und_section (bfd_get_section (sym)))
1024 sym = find_symbol_for_address (vma, inf, NULL);
1026 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, inf,
1030 /* Print VMA to INFO. This function is passed to the disassembler
1034 objdump_print_address (bfd_vma vma, struct disassemble_info *inf)
1036 objdump_print_addr (vma, inf, ! prefix_addresses);
1039 /* Determine if the given address has a symbol associated with it. */
1042 objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * inf)
1046 sym = find_symbol_for_address (vma, inf, NULL);
1048 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
1051 /* Hold the last function name and the last line number we displayed
1052 in a disassembly. */
1054 static char *prev_functionname;
1055 static unsigned int prev_line;
1057 /* We keep a list of all files that we have seen when doing a
1058 disassembly with source, so that we know how much of the file to
1059 display. This can be important for inlined functions. */
1061 struct print_file_list
1063 struct print_file_list *next;
1064 const char *filename;
1065 const char *modname;
1068 const char **linemap;
1074 static struct print_file_list *print_files;
1076 /* The number of preceding context lines to show when we start
1077 displaying a file for the first time. */
1079 #define SHOW_PRECEDING_CONTEXT_LINES (5)
1081 /* Read a complete file into memory. */
1084 slurp_file (const char *fn, size_t *size)
1087 int ps = getpagesize ();
1092 int fd = open (fn, O_RDONLY | O_BINARY);
1096 if (fstat (fd, &st) < 0)
1100 msize = (*size + ps - 1) & ~(ps - 1);
1101 map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0);
1102 if (map != (char *)-1L)
1108 map = (const char *) malloc (*size);
1109 if (!map || (size_t) read (fd, (char *)map, *size) != *size)
1118 #define line_map_decrease 5
1120 /* Precompute array of lines for a mapped file. */
1122 static const char **
1123 index_file (const char *map, size_t size, unsigned int *maxline)
1125 const char *p, *lstart, *end;
1126 int chars_per_line = 45; /* First iteration will use 40. */
1127 unsigned int lineno;
1128 const char **linemap = NULL;
1129 unsigned long line_map_size = 0;
1135 for (p = map; p < end; p++)
1139 if (p + 1 < end && p[1] == '\r')
1142 else if (*p == '\r')
1144 if (p + 1 < end && p[1] == '\n')
1150 /* End of line found. */
1152 if (linemap == NULL || line_map_size < lineno + 1)
1154 unsigned long newsize;
1156 chars_per_line -= line_map_decrease;
1157 if (chars_per_line <= 1)
1159 line_map_size = size / chars_per_line + 1;
1160 if (line_map_size < lineno + 1)
1161 line_map_size = lineno + 1;
1162 newsize = line_map_size * sizeof (char *);
1163 linemap = (const char **) xrealloc (linemap, newsize);
1166 linemap[lineno++] = lstart;
1174 /* Tries to open MODNAME, and if successful adds a node to print_files
1175 linked list and returns that node. Returns NULL on failure. */
1177 static struct print_file_list *
1178 try_print_file_open (const char *origname, const char *modname)
1180 struct print_file_list *p;
1182 p = (struct print_file_list *) xmalloc (sizeof (struct print_file_list));
1184 p->map = slurp_file (modname, &p->mapsize);
1191 p->linemap = index_file (p->map, p->mapsize, &p->maxline);
1193 p->filename = origname;
1194 p->modname = modname;
1195 p->next = print_files;
1201 /* If the the source file, as described in the symtab, is not found
1202 try to locate it in one of the paths specified with -I
1203 If found, add location to print_files linked list. */
1205 static struct print_file_list *
1206 update_source_path (const char *filename)
1208 struct print_file_list *p;
1212 if (filename == NULL)
1215 p = try_print_file_open (filename, filename);
1219 if (include_path_count == 0)
1222 /* Get the name of the file. */
1223 fname = lbasename (filename);
1225 /* If file exists under a new path, we need to add it to the list
1226 so that show_line knows about it. */
1227 for (i = 0; i < include_path_count; i++)
1229 char *modname = concat (include_paths[i], "/", fname, (const char *) 0);
1231 p = try_print_file_open (filename, modname);
1241 /* Print a source file line. */
1244 print_line (struct print_file_list *p, unsigned int linenum)
1250 if (linenum >= p->maxline)
1252 l = p->linemap [linenum];
1253 /* Test fwrite return value to quiet glibc warning. */
1254 len = strcspn (l, "\n\r");
1255 if (len == 0 || fwrite (l, len, 1, stdout) == 1)
1259 /* Print a range of source code lines. */
1262 dump_lines (struct print_file_list *p, unsigned int start, unsigned int end)
1266 while (start <= end)
1268 print_line (p, start);
1273 /* Show the line number, or the source line, in a disassembly
1277 show_line (bfd *abfd, asection *section, bfd_vma addr_offset)
1279 const char *filename;
1280 const char *functionname;
1281 unsigned int linenumber;
1284 if (! with_line_numbers && ! with_source_code)
1287 if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
1288 &functionname, &linenumber))
1291 if (filename != NULL && *filename == '\0')
1293 if (functionname != NULL && *functionname == '\0')
1294 functionname = NULL;
1297 && IS_ABSOLUTE_PATH (filename)
1301 const char *fname = filename;
1302 char *path = (char *) alloca (prefix_length + PATH_MAX + 1);
1305 memcpy (path, prefix, prefix_length);
1306 path_up = path + prefix_length;
1308 /* Build relocated filename, stripping off leading directories
1309 from the initial filename if requested. */
1310 if (prefix_strip > 0)
1315 /* Skip selected directory levels. */
1316 for (s = fname + 1; *s != '\0' && level < prefix_strip; s++)
1317 if (IS_DIR_SEPARATOR(*s))
1324 /* Update complete filename. */
1325 strncpy (path_up, fname, PATH_MAX);
1326 path_up[PATH_MAX] = '\0';
1334 if (with_line_numbers)
1336 if (functionname != NULL
1337 && (prev_functionname == NULL
1338 || strcmp (functionname, prev_functionname) != 0))
1339 printf ("%s():\n", functionname);
1340 if (linenumber > 0 && linenumber != prev_line)
1341 printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
1344 if (with_source_code
1348 struct print_file_list **pp, *p;
1351 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1352 if (strcmp ((*pp)->filename, filename) == 0)
1359 filename = xstrdup (filename);
1360 p = update_source_path (filename);
1363 if (p != NULL && linenumber != p->last_line)
1365 if (file_start_context && p->first)
1369 l = linenumber - SHOW_PRECEDING_CONTEXT_LINES;
1370 if (l >= linenumber)
1372 if (p->last_line >= l && p->last_line <= linenumber)
1373 l = p->last_line + 1;
1375 dump_lines (p, l, linenumber);
1376 p->last_line = linenumber;
1381 if (functionname != NULL
1382 && (prev_functionname == NULL
1383 || strcmp (functionname, prev_functionname) != 0))
1385 if (prev_functionname != NULL)
1386 free (prev_functionname);
1387 prev_functionname = (char *) xmalloc (strlen (functionname) + 1);
1388 strcpy (prev_functionname, functionname);
1391 if (linenumber > 0 && linenumber != prev_line)
1392 prev_line = linenumber;
1395 /* Pseudo FILE object for strings. */
1403 /* sprintf to a "stream". */
1405 static int ATTRIBUTE_PRINTF_2
1406 objdump_sprintf (SFILE *f, const char *format, ...)
1413 size_t space = f->alloc - f->pos;
1415 va_start (args, format);
1416 n = vsnprintf (f->buffer + f->pos, space, format, args);
1422 f->alloc = (f->alloc + n) * 2;
1423 f->buffer = (char *) xrealloc (f->buffer, f->alloc);
1430 /* The number of zeroes we want to see before we start skipping them.
1431 The number is arbitrarily chosen. */
1433 #define DEFAULT_SKIP_ZEROES 8
1435 /* The number of zeroes to skip at the end of a section. If the
1436 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1437 SKIP_ZEROES, they will be disassembled. If there are fewer than
1438 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1439 attempt to avoid disassembling zeroes inserted by section
1442 #define DEFAULT_SKIP_ZEROES_AT_END 3
1444 /* Disassemble some data in memory between given values. */
1447 disassemble_bytes (struct disassemble_info * inf,
1448 disassembler_ftype disassemble_fn,
1451 bfd_vma start_offset,
1452 bfd_vma stop_offset,
1455 arelent ** relppend)
1457 struct objdump_disasm_info *aux;
1459 int octets_per_line;
1460 bfd_boolean done_dot;
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;
1469 aux = (struct objdump_disasm_info *) inf->application_data;
1473 sfile.buffer = (char *) xmalloc (sfile.alloc);
1477 octets_per_line = insn_width;
1479 octets_per_line = 4;
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
1487 skip_addr_chars = 0;
1488 if (! prefix_addresses)
1492 bfd_sprintf_vma (aux->abfd, buf, section->vma + section->size / opb);
1494 while (buf[skip_addr_chars] == '0')
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;
1508 addr_offset = start_offset;
1509 while (addr_offset < stop_offset)
1512 bfd_boolean need_nl = FALSE;
1513 int previous_octets;
1515 /* Remember the length of the previous instruction. */
1516 previous_octets = octets;
1519 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1521 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1524 if (! disassemble_zeroes
1525 && (inf->insn_info_valid == 0
1526 || inf->branch_delay_insns == 0)
1527 && (z - addr_offset * opb >= skip_zeroes
1528 || (z == stop_offset * opb &&
1529 z - addr_offset * opb < skip_zeroes_at_end)))
1531 /* If there are more nonzero octets to follow, we only skip
1532 zeroes in multiples of 4, to try to avoid running over
1533 the start of an instruction which happens to start with
1535 if (z != stop_offset * opb)
1536 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1538 octets = z - addr_offset * opb;
1540 /* If we are going to display more data, and we are displaying
1541 file offsets, then tell the user how many zeroes we skip
1542 and the file offset from where we resume dumping. */
1543 if (display_file_offsets && ((addr_offset + (octets / opb)) < stop_offset))
1544 printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
1546 (unsigned long) (section->filepos
1547 + (addr_offset + (octets / opb))));
1559 if (with_line_numbers || with_source_code)
1560 show_line (aux->abfd, section, addr_offset);
1562 if (! prefix_addresses)
1566 bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset);
1567 for (s = buf + skip_addr_chars; *s == '0'; s++)
1571 printf ("%s:\t", buf + skip_addr_chars);
1575 aux->require_sec = TRUE;
1576 objdump_print_address (section->vma + addr_offset, inf);
1577 aux->require_sec = FALSE;
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;
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;
1626 octets = (*disassemble_fn) (section->vma + addr_offset, inf);
1627 inf->fprintf_func = (fprintf_ftype) fprintf;
1628 inf->stream = stdout;
1629 if (insn_width == 0 && inf->bytes_per_line != 0)
1630 octets_per_line = inf->bytes_per_line;
1634 printf ("%s\n", sfile.buffer);
1642 octets = octets_per_line;
1643 if (addr_offset + octets / opb > stop_offset)
1644 octets = (stop_offset - addr_offset) * opb;
1646 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1648 if (ISPRINT (data[j]))
1649 buf[j - addr_offset * opb] = data[j];
1651 buf[j - addr_offset * opb] = '.';
1653 buf[j - addr_offset * opb] = '\0';
1656 if (prefix_addresses
1658 : show_raw_insn >= 0)
1662 /* If ! prefix_addresses and ! wide_output, we print
1663 octets_per_line octets per line. */
1665 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1666 pb = octets_per_line;
1668 if (inf->bytes_per_chunk)
1669 bpc = inf->bytes_per_chunk;
1673 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1677 if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
1679 for (k = bpc - 1; k >= 0; k--)
1680 printf ("%02x", (unsigned) data[j + k]);
1685 for (k = 0; k < bpc; k++)
1686 printf ("%02x", (unsigned) data[j + k]);
1691 for (; pb < octets_per_line; pb += bpc)
1695 for (k = 0; k < bpc; k++)
1700 /* Separate raw data from instruction by extra space. */
1710 printf ("%s", sfile.buffer);
1712 if (prefix_addresses
1714 : show_raw_insn >= 0)
1722 j = addr_offset * opb + pb;
1724 bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb);
1725 for (s = buf + skip_addr_chars; *s == '0'; s++)
1729 printf ("%s:\t", buf + skip_addr_chars);
1731 pb += octets_per_line;
1734 for (; j < addr_offset * opb + pb; j += bpc)
1738 if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
1740 for (k = bpc - 1; k >= 0; k--)
1741 printf ("%02x", (unsigned) data[j + k]);
1746 for (k = 0; k < bpc; k++)
1747 printf ("%02x", (unsigned) data[j + k]);
1760 while ((*relppp) < relppend
1761 && (**relppp)->address < rel_offset + addr_offset + octets / opb)
1763 if (dump_reloc_info || dump_dynamic_reloc_info)
1774 objdump_print_value (section->vma - rel_offset + q->address,
1777 if (q->howto == NULL)
1778 printf (": *unknown*\t");
1779 else if (q->howto->name)
1780 printf (": %s\t", q->howto->name);
1782 printf (": %d\t", q->howto->type);
1784 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1785 printf ("*unknown*");
1788 const char *sym_name;
1790 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1791 if (sym_name != NULL && *sym_name != '\0')
1792 objdump_print_symname (aux->abfd, inf, *q->sym_ptr_ptr);
1797 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1798 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1799 if (sym_name == NULL || *sym_name == '\0')
1800 sym_name = "*unknown*";
1801 printf ("%s", sym_name);
1808 objdump_print_value (q->addend, inf, TRUE);
1820 addr_offset += octets / opb;
1823 free (sfile.buffer);
1827 disassemble_section (bfd *abfd, asection *section, void *inf)
1829 const struct elf_backend_data * bed;
1830 bfd_vma sign_adjust = 0;
1831 struct disassemble_info * pinfo = (struct disassemble_info *) inf;
1832 struct objdump_disasm_info * paux;
1833 unsigned int opb = pinfo->octets_per_byte;
1834 bfd_byte * data = NULL;
1835 bfd_size_type datasize = 0;
1836 arelent ** rel_pp = NULL;
1837 arelent ** rel_ppstart = NULL;
1838 arelent ** rel_ppend;
1839 unsigned long stop_offset;
1840 asymbol * sym = NULL;
1844 unsigned long addr_offset;
1846 /* Sections that do not contain machine
1847 code are not normally disassembled. */
1848 if (! disassemble_all
1849 && only_list == NULL
1850 && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
1851 != (SEC_CODE | SEC_HAS_CONTENTS)))
1854 if (! process_section_p (section))
1857 datasize = bfd_get_section_size (section);
1861 /* Decide which set of relocs to use. Load them if necessary. */
1862 paux = (struct objdump_disasm_info *) pinfo->application_data;
1863 if (paux->dynrelbuf)
1865 rel_pp = paux->dynrelbuf;
1866 rel_count = paux->dynrelcount;
1867 /* Dynamic reloc addresses are absolute, non-dynamic are section
1868 relative. REL_OFFSET specifies the reloc address corresponding
1869 to the start of this section. */
1870 rel_offset = section->vma;
1878 if ((section->flags & SEC_RELOC) != 0
1879 && (dump_reloc_info || pinfo->disassembler_needs_relocs))
1883 relsize = bfd_get_reloc_upper_bound (abfd, section);
1885 bfd_fatal (bfd_get_filename (abfd));
1889 rel_ppstart = rel_pp = (arelent **) xmalloc (relsize);
1890 rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms);
1892 bfd_fatal (bfd_get_filename (abfd));
1894 /* Sort the relocs by address. */
1895 qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs);
1899 rel_ppend = rel_pp + rel_count;
1901 data = (bfd_byte *) xmalloc (datasize);
1903 bfd_get_section_contents (abfd, section, data, 0, datasize);
1905 paux->sec = section;
1906 pinfo->buffer = data;
1907 pinfo->buffer_vma = section->vma;
1908 pinfo->buffer_length = datasize;
1909 pinfo->section = section;
1911 if (start_address == (bfd_vma) -1
1912 || start_address < pinfo->buffer_vma)
1915 addr_offset = start_address - pinfo->buffer_vma;
1917 if (stop_address == (bfd_vma) -1)
1918 stop_offset = datasize / opb;
1921 if (stop_address < pinfo->buffer_vma)
1924 stop_offset = stop_address - pinfo->buffer_vma;
1925 if (stop_offset > pinfo->buffer_length / opb)
1926 stop_offset = pinfo->buffer_length / opb;
1929 /* Skip over the relocs belonging to addresses below the
1931 while (rel_pp < rel_ppend
1932 && (*rel_pp)->address < rel_offset + addr_offset)
1935 if (addr_offset < stop_offset)
1936 printf (_("\nDisassembly of section %s:\n"), section->name);
1938 /* Find the nearest symbol forwards from our current position. */
1939 paux->require_sec = TRUE;
1940 sym = (asymbol *) find_symbol_for_address (section->vma + addr_offset,
1941 (struct disassemble_info *) inf,
1943 paux->require_sec = FALSE;
1945 /* PR 9774: If the target used signed addresses then we must make
1946 sure that we sign extend the value that we calculate for 'addr'
1947 in the loop below. */
1948 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
1949 && (bed = get_elf_backend_data (abfd)) != NULL
1950 && bed->sign_extend_vma)
1951 sign_adjust = (bfd_vma) 1 << (bed->s->arch_size - 1);
1953 /* Disassemble a block of instructions up to the address associated with
1954 the symbol we have just found. Then print the symbol and find the
1955 next symbol on. Repeat until we have disassembled the entire section
1956 or we have reached the end of the address range we are interested in. */
1957 while (addr_offset < stop_offset)
1961 unsigned long nextstop_offset;
1964 addr = section->vma + addr_offset;
1965 addr = ((addr & ((sign_adjust << 1) - 1)) ^ sign_adjust) - sign_adjust;
1967 if (sym != NULL && bfd_asymbol_value (sym) <= addr)
1972 (x < sorted_symcount
1973 && (bfd_asymbol_value (sorted_syms[x]) <= addr));
1977 pinfo->symbols = sorted_syms + place;
1978 pinfo->num_symbols = x - place;
1979 pinfo->symtab_pos = place;
1983 pinfo->symbols = NULL;
1984 pinfo->num_symbols = 0;
1985 pinfo->symtab_pos = -1;
1988 if (! prefix_addresses)
1990 pinfo->fprintf_func (pinfo->stream, "\n");
1991 objdump_print_addr_with_sym (abfd, section, sym, addr,
1993 pinfo->fprintf_func (pinfo->stream, ":\n");
1996 if (sym != NULL && bfd_asymbol_value (sym) > addr)
1998 else if (sym == NULL)
2002 #define is_valid_next_sym(SYM) \
2003 ((SYM)->section == section \
2004 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
2005 && pinfo->symbol_is_valid (SYM, pinfo))
2007 /* Search forward for the next appropriate symbol in
2008 SECTION. Note that all the symbols are sorted
2009 together into one big array, and that some sections
2010 may have overlapping addresses. */
2011 while (place < sorted_symcount
2012 && ! is_valid_next_sym (sorted_syms [place]))
2015 if (place >= sorted_symcount)
2018 nextsym = sorted_syms[place];
2021 if (sym != NULL && bfd_asymbol_value (sym) > addr)
2022 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
2023 else if (nextsym == NULL)
2024 nextstop_offset = stop_offset;
2026 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
2028 if (nextstop_offset > stop_offset
2029 || nextstop_offset <= addr_offset)
2030 nextstop_offset = stop_offset;
2032 /* If a symbol is explicitly marked as being an object
2033 rather than a function, just dump the bytes without
2034 disassembling them. */
2037 || sym->section != section
2038 || bfd_asymbol_value (sym) > addr
2039 || ((sym->flags & BSF_OBJECT) == 0
2040 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
2042 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
2044 || (sym->flags & BSF_FUNCTION) != 0)
2049 disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
2050 addr_offset, nextstop_offset,
2051 rel_offset, &rel_pp, rel_ppend);
2053 addr_offset = nextstop_offset;
2059 if (rel_ppstart != NULL)
2063 /* Disassemble the contents of an object file. */
2066 disassemble_data (bfd *abfd)
2068 struct disassemble_info disasm_info;
2069 struct objdump_disasm_info aux;
2073 prev_functionname = NULL;
2076 /* We make a copy of syms to sort. We don't want to sort syms
2077 because that will screw up the relocs. */
2078 sorted_symcount = symcount ? symcount : dynsymcount;
2079 sorted_syms = (asymbol **) xmalloc ((sorted_symcount + synthcount)
2080 * sizeof (asymbol *));
2081 memcpy (sorted_syms, symcount ? syms : dynsyms,
2082 sorted_symcount * sizeof (asymbol *));
2084 sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
2086 for (i = 0; i < synthcount; ++i)
2088 sorted_syms[sorted_symcount] = synthsyms + i;
2092 /* Sort the symbols into section and symbol order. */
2093 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
2095 init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
2097 disasm_info.application_data = (void *) &aux;
2099 aux.require_sec = FALSE;
2100 aux.dynrelbuf = NULL;
2101 aux.dynrelcount = 0;
2104 disasm_info.print_address_func = objdump_print_address;
2105 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
2107 if (machine != NULL)
2109 const bfd_arch_info_type *inf = bfd_scan_arch (machine);
2112 fatal (_("Can't use supplied machine %s"), machine);
2114 abfd->arch_info = inf;
2117 if (endian != BFD_ENDIAN_UNKNOWN)
2119 struct bfd_target *xvec;
2121 xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
2122 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
2123 xvec->byteorder = endian;
2127 /* Use libopcodes to locate a suitable disassembler. */
2128 aux.disassemble_fn = disassembler (abfd);
2129 if (!aux.disassemble_fn)
2131 non_fatal (_("Can't disassemble for architecture %s\n"),
2132 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
2137 disasm_info.flavour = bfd_get_flavour (abfd);
2138 disasm_info.arch = bfd_get_arch (abfd);
2139 disasm_info.mach = bfd_get_mach (abfd);
2140 disasm_info.disassembler_options = disassembler_options;
2141 disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
2142 disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
2143 disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
2144 disasm_info.disassembler_needs_relocs = FALSE;
2146 if (bfd_big_endian (abfd))
2147 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
2148 else if (bfd_little_endian (abfd))
2149 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
2151 /* ??? Aborting here seems too drastic. We could default to big or little
2153 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
2155 /* Allow the target to customize the info structure. */
2156 disassemble_init_for_target (& disasm_info);
2158 /* Pre-load the dynamic relocs if we are going
2159 to be dumping them along with the disassembly. */
2160 if (dump_dynamic_reloc_info)
2162 long relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2165 bfd_fatal (bfd_get_filename (abfd));
2169 aux.dynrelbuf = (arelent **) xmalloc (relsize);
2170 aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
2173 if (aux.dynrelcount < 0)
2174 bfd_fatal (bfd_get_filename (abfd));
2176 /* Sort the relocs by address. */
2177 qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
2181 disasm_info.symtab = sorted_syms;
2182 disasm_info.symtab_size = sorted_symcount;
2184 bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
2186 if (aux.dynrelbuf != NULL)
2187 free (aux.dynrelbuf);
2192 load_specific_debug_section (enum dwarf_section_display_enum debug,
2193 asection *sec, void *file)
2195 struct dwarf_section *section = &debug_displays [debug].section;
2196 bfd *abfd = (bfd *) file;
2198 int section_is_compressed;
2200 /* If it is already loaded, do nothing. */
2201 if (section->start != NULL)
2204 section_is_compressed = section->name == section->compressed_name;
2206 section->address = 0;
2207 section->size = bfd_get_section_size (sec);
2208 section->start = (unsigned char *) xmalloc (section->size);
2210 if (is_relocatable && debug_displays [debug].relocate)
2211 ret = bfd_simple_get_relocated_section_contents (abfd,
2216 ret = bfd_get_section_contents (abfd, sec, section->start, 0,
2221 free_debug_section (debug);
2222 printf (_("\nCan't get contents for section '%s'.\n"),
2227 if (section_is_compressed)
2229 bfd_size_type size = section->size;
2230 if (! bfd_uncompress_section_contents (§ion->start, &size))
2232 free_debug_section (debug);
2233 printf (_("\nCan't uncompress section '%s'.\n"), section->name);
2236 section->size = size;
2243 load_debug_section (enum dwarf_section_display_enum debug, void *file)
2245 struct dwarf_section *section = &debug_displays [debug].section;
2246 bfd *abfd = (bfd *) file;
2249 /* If it is already loaded, do nothing. */
2250 if (section->start != NULL)
2253 /* Locate the debug section. */
2254 sec = bfd_get_section_by_name (abfd, section->uncompressed_name);
2256 section->name = section->uncompressed_name;
2259 sec = bfd_get_section_by_name (abfd, section->compressed_name);
2261 section->name = section->compressed_name;
2266 return load_specific_debug_section (debug, sec, file);
2270 free_debug_section (enum dwarf_section_display_enum debug)
2272 struct dwarf_section *section = &debug_displays [debug].section;
2274 if (section->start == NULL)
2277 free ((char *) section->start);
2278 section->start = NULL;
2279 section->address = 0;
2284 dump_dwarf_section (bfd *abfd, asection *section,
2285 void *arg ATTRIBUTE_UNUSED)
2287 const char *name = bfd_get_section_name (abfd, section);
2291 if (CONST_STRNEQ (name, ".gnu.linkonce.wi."))
2292 match = ".debug_info";
2296 for (i = 0; i < max; i++)
2297 if ((strcmp (debug_displays [i].section.uncompressed_name, match) == 0
2298 || strcmp (debug_displays [i].section.compressed_name, match) == 0)
2299 && debug_displays [i].enabled != NULL
2300 && *debug_displays [i].enabled)
2302 struct dwarf_section *sec = &debug_displays [i].section;
2304 if (strcmp (sec->uncompressed_name, match) == 0)
2305 sec->name = sec->uncompressed_name;
2307 sec->name = sec->compressed_name;
2308 if (load_specific_debug_section ((enum dwarf_section_display_enum) i,
2311 debug_displays [i].display (sec, abfd);
2313 if (i != info && i != abbrev)
2314 free_debug_section ((enum dwarf_section_display_enum) i);
2320 /* Dump the dwarf debugging information. */
2323 dump_dwarf (bfd *abfd)
2325 is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2327 /* FIXME: bfd_get_arch_size may return -1. We assume that 64bit
2328 targets will return 64. */
2329 eh_addr_size = bfd_get_arch_size (abfd) == 64 ? 8 : 4;
2331 if (bfd_big_endian (abfd))
2332 byte_get = byte_get_big_endian;
2333 else if (bfd_little_endian (abfd))
2334 byte_get = byte_get_little_endian;
2338 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
2340 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2341 init_dwarf_regnames (bed->elf_machine_code);
2344 bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
2346 free_debug_memory ();
2349 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
2350 it. Return NULL on failure. */
2353 read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
2359 stabsect = bfd_get_section_by_name (abfd, sect_name);
2360 if (stabsect == NULL)
2362 printf (_("No %s section present\n\n"), sect_name);
2366 size = bfd_section_size (abfd, stabsect);
2367 contents = (char *) xmalloc (size);
2369 if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
2371 non_fatal (_("Reading %s section of %s failed: %s"),
2372 sect_name, bfd_get_filename (abfd),
2373 bfd_errmsg (bfd_get_error ()));
2384 /* Stabs entries use a 12 byte format:
2385 4 byte string table index
2387 1 byte stab other field
2388 2 byte stab desc field
2390 FIXME: This will have to change for a 64 bit object format. */
2392 #define STRDXOFF (0)
2394 #define OTHEROFF (5)
2397 #define STABSIZE (12)
2399 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
2400 using string table section STRSECT_NAME (in `strtab'). */
2403 print_section_stabs (bfd *abfd,
2404 const char *stabsect_name,
2405 unsigned *string_offset_ptr)
2408 unsigned file_string_table_offset = 0;
2409 unsigned next_file_string_table_offset = *string_offset_ptr;
2410 bfd_byte *stabp, *stabs_end;
2413 stabs_end = stabp + stab_size;
2415 printf (_("Contents of %s section:\n\n"), stabsect_name);
2416 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
2418 /* Loop through all symbols and print them.
2420 We start the index at -1 because there is a dummy symbol on
2421 the front of stabs-in-{coff,elf} sections that supplies sizes. */
2422 for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
2426 unsigned char type, other;
2427 unsigned short desc;
2430 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
2431 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
2432 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
2433 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
2434 value = bfd_h_get_32 (abfd, stabp + VALOFF);
2436 printf ("\n%-6d ", i);
2437 /* Either print the stab name, or, if unnamed, print its number
2438 again (makes consistent formatting for tools like awk). */
2439 name = bfd_get_stab_name (type);
2441 printf ("%-6s", name);
2442 else if (type == N_UNDF)
2445 printf ("%-6d", type);
2446 printf (" %-6d %-6d ", other, desc);
2447 bfd_printf_vma (abfd, value);
2448 printf (" %-6lu", strx);
2450 /* Symbols with type == 0 (N_UNDF) specify the length of the
2451 string table associated with this file. We use that info
2452 to know how to relocate the *next* file's string table indices. */
2455 file_string_table_offset = next_file_string_table_offset;
2456 next_file_string_table_offset += value;
2460 /* Using the (possibly updated) string table offset, print the
2461 string (if any) associated with this symbol. */
2462 if ((strx + file_string_table_offset) < stabstr_size)
2463 printf (" %s", &strtab[strx + file_string_table_offset]);
2469 *string_offset_ptr = next_file_string_table_offset;
2474 const char * section_name;
2475 const char * string_section_name;
2476 unsigned string_offset;
2481 find_stabs_section (bfd *abfd, asection *section, void *names)
2484 stab_section_names * sought = (stab_section_names *) names;
2486 /* Check for section names for which stabsect_name is a prefix, to
2487 handle .stab.N, etc. */
2488 len = strlen (sought->section_name);
2490 /* If the prefix matches, and the files section name ends with a
2491 nul or a digit, then we match. I.e., we want either an exact
2492 match or a section followed by a number. */
2493 if (strncmp (sought->section_name, section->name, len) == 0
2494 && (section->name[len] == 0
2495 || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
2498 strtab = read_section_stabs (abfd, sought->string_section_name,
2503 stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
2506 print_section_stabs (abfd, section->name, &sought->string_offset);
2512 dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name)
2514 stab_section_names s;
2516 s.section_name = stabsect_name;
2517 s.string_section_name = strsect_name;
2518 s.string_offset = 0;
2520 bfd_map_over_sections (abfd, find_stabs_section, & s);
2526 /* Dump the any sections containing stabs debugging information. */
2529 dump_stabs (bfd *abfd)
2531 dump_stabs_section (abfd, ".stab", ".stabstr");
2532 dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr");
2533 dump_stabs_section (abfd, ".stab.index", ".stab.indexstr");
2536 dump_stabs_section (abfd, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr");
2538 dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
2542 dump_bfd_header (bfd *abfd)
2546 printf (_("architecture: %s, "),
2547 bfd_printable_arch_mach (bfd_get_arch (abfd),
2548 bfd_get_mach (abfd)));
2549 printf (_("flags 0x%08x:\n"), abfd->flags);
2551 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2552 PF (HAS_RELOC, "HAS_RELOC");
2553 PF (EXEC_P, "EXEC_P");
2554 PF (HAS_LINENO, "HAS_LINENO");
2555 PF (HAS_DEBUG, "HAS_DEBUG");
2556 PF (HAS_SYMS, "HAS_SYMS");
2557 PF (HAS_LOCALS, "HAS_LOCALS");
2558 PF (DYNAMIC, "DYNAMIC");
2559 PF (WP_TEXT, "WP_TEXT");
2560 PF (D_PAGED, "D_PAGED");
2561 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
2562 PF (HAS_LOAD_PAGE, "HAS_LOAD_PAGE");
2563 printf (_("\nstart address 0x"));
2564 bfd_printf_vma (abfd, abfd->start_address);
2570 dump_bfd_private_header (bfd *abfd)
2572 bfd_print_private_bfd_data (abfd, stdout);
2576 /* Display a section in hexadecimal format with associated characters.
2577 Each line prefixed by the zero padded address. */
2580 dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
2583 bfd_size_type datasize;
2584 bfd_size_type addr_offset;
2585 bfd_size_type start_offset;
2586 bfd_size_type stop_offset;
2587 unsigned int opb = bfd_octets_per_byte (abfd);
2588 /* Bytes per line. */
2589 const int onaline = 16;
2594 if ((section->flags & SEC_HAS_CONTENTS) == 0)
2597 if (! process_section_p (section))
2600 if ((datasize = bfd_section_size (abfd, section)) == 0)
2603 /* Compute the address range to display. */
2604 if (start_address == (bfd_vma) -1
2605 || start_address < section->vma)
2608 start_offset = start_address - section->vma;
2610 if (stop_address == (bfd_vma) -1)
2611 stop_offset = datasize / opb;
2614 if (stop_address < section->vma)
2617 stop_offset = stop_address - section->vma;
2619 if (stop_offset > datasize / opb)
2620 stop_offset = datasize / opb;
2623 if (start_offset >= stop_offset)
2626 printf (_("Contents of section %s:"), section->name);
2627 if (display_file_offsets)
2628 printf (_(" (Starting at file offset: 0x%lx)"),
2629 (unsigned long) (section->filepos + start_offset));
2632 data = (bfd_byte *) xmalloc (datasize);
2634 bfd_get_section_contents (abfd, section, data, 0, datasize);
2638 bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
2639 if (strlen (buf) >= sizeof (buf))
2643 while (buf[count] == '0' && buf[count+1] != '\0')
2645 count = strlen (buf) - count;
2649 bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
2650 if (strlen (buf) >= sizeof (buf))
2654 while (buf[count] == '0' && buf[count+1] != '\0')
2656 count = strlen (buf) - count;
2660 for (addr_offset = start_offset;
2661 addr_offset < stop_offset; addr_offset += onaline / opb)
2665 bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
2666 count = strlen (buf);
2667 if ((size_t) count >= sizeof (buf))
2671 while (count < width)
2676 fputs (buf + count - width, stdout);
2679 for (j = addr_offset * opb;
2680 j < addr_offset * opb + onaline; j++)
2682 if (j < stop_offset * opb)
2683 printf ("%02x", (unsigned) (data[j]));
2691 for (j = addr_offset * opb;
2692 j < addr_offset * opb + onaline; j++)
2694 if (j >= stop_offset * opb)
2697 printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
2704 /* Actually display the various requested regions. */
2707 dump_data (bfd *abfd)
2709 bfd_map_over_sections (abfd, dump_section, NULL);
2712 /* Should perhaps share code and display with nm? */
2715 dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
2724 max_count = dynsymcount;
2725 printf ("DYNAMIC SYMBOL TABLE:\n");
2730 max_count = symcount;
2731 printf ("SYMBOL TABLE:\n");
2735 printf (_("no symbols\n"));
2737 for (count = 0; count < max_count; count++)
2741 if (*current == NULL)
2742 printf (_("no information for symbol number %ld\n"), count);
2744 else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
2745 printf (_("could not determine the type of symbol number %ld\n"),
2748 else if (process_section_p ((* current)->section)
2749 && (dump_special_syms
2750 || !bfd_is_target_special_symbol (cur_bfd, *current)))
2752 const char *name = (*current)->name;
2754 if (do_demangle && name != NULL && *name != '\0')
2758 /* If we want to demangle the name, we demangle it
2759 here, and temporarily clobber it while calling
2760 bfd_print_symbol. FIXME: This is a gross hack. */
2761 alloc = bfd_demangle (cur_bfd, name, DMGL_ANSI | DMGL_PARAMS);
2763 (*current)->name = alloc;
2764 bfd_print_symbol (cur_bfd, stdout, *current,
2765 bfd_print_symbol_all);
2768 (*current)->name = name;
2773 bfd_print_symbol (cur_bfd, stdout, *current,
2774 bfd_print_symbol_all);
2784 dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount)
2787 char *last_filename, *last_functionname;
2788 unsigned int last_line;
2790 /* Get column headers lined up reasonably. */
2798 bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
2799 width = strlen (buf) - 7;
2801 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2804 last_filename = NULL;
2805 last_functionname = NULL;
2808 for (p = relpp; relcount && *p != NULL; p++, relcount--)
2811 const char *filename, *functionname;
2812 unsigned int linenumber;
2813 const char *sym_name;
2814 const char *section_name;
2816 if (start_address != (bfd_vma) -1
2817 && q->address < start_address)
2819 if (stop_address != (bfd_vma) -1
2820 && q->address > stop_address)
2823 if (with_line_numbers
2825 && bfd_find_nearest_line (abfd, sec, syms, q->address,
2826 &filename, &functionname, &linenumber))
2828 if (functionname != NULL
2829 && (last_functionname == NULL
2830 || strcmp (functionname, last_functionname) != 0))
2832 printf ("%s():\n", functionname);
2833 if (last_functionname != NULL)
2834 free (last_functionname);
2835 last_functionname = xstrdup (functionname);
2839 && (linenumber != last_line
2840 || (filename != NULL
2841 && last_filename != NULL
2842 && strcmp (filename, last_filename) != 0)))
2844 printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
2845 last_line = linenumber;
2846 if (last_filename != NULL)
2847 free (last_filename);
2848 if (filename == NULL)
2849 last_filename = NULL;
2851 last_filename = xstrdup (filename);
2855 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2857 sym_name = (*(q->sym_ptr_ptr))->name;
2858 section_name = (*(q->sym_ptr_ptr))->section->name;
2863 section_name = NULL;
2866 bfd_printf_vma (abfd, q->address);
2867 if (q->howto == NULL)
2868 printf (" *unknown* ");
2869 else if (q->howto->name)
2870 printf (" %-16s ", q->howto->name);
2872 printf (" %-16d ", q->howto->type);
2876 objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
2880 if (section_name == NULL)
2881 section_name = "*unknown*";
2882 printf ("[%s]", section_name);
2888 bfd_printf_vma (abfd, q->addend);
2896 dump_relocs_in_section (bfd *abfd,
2898 void *dummy ATTRIBUTE_UNUSED)
2904 if ( bfd_is_abs_section (section)
2905 || bfd_is_und_section (section)
2906 || bfd_is_com_section (section)
2907 || (! process_section_p (section))
2908 || ((section->flags & SEC_RELOC) == 0))
2911 relsize = bfd_get_reloc_upper_bound (abfd, section);
2913 bfd_fatal (bfd_get_filename (abfd));
2915 printf ("RELOCATION RECORDS FOR [%s]:", section->name);
2919 printf (" (none)\n\n");
2923 relpp = (arelent **) xmalloc (relsize);
2924 relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
2927 bfd_fatal (bfd_get_filename (abfd));
2928 else if (relcount == 0)
2929 printf (" (none)\n\n");
2933 dump_reloc_set (abfd, section, relpp, relcount);
2940 dump_relocs (bfd *abfd)
2942 bfd_map_over_sections (abfd, dump_relocs_in_section, NULL);
2946 dump_dynamic_relocs (bfd *abfd)
2952 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2954 bfd_fatal (bfd_get_filename (abfd));
2956 printf ("DYNAMIC RELOCATION RECORDS");
2959 printf (" (none)\n\n");
2962 relpp = (arelent **) xmalloc (relsize);
2963 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
2966 bfd_fatal (bfd_get_filename (abfd));
2967 else if (relcount == 0)
2968 printf (" (none)\n\n");
2972 dump_reloc_set (abfd, NULL, relpp, relcount);
2979 /* Creates a table of paths, to search for source files. */
2982 add_include_path (const char *path)
2986 include_path_count++;
2987 include_paths = (const char **)
2988 xrealloc (include_paths, include_path_count * sizeof (*include_paths));
2989 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2990 if (path[1] == ':' && path[2] == 0)
2991 path = concat (path, ".", (const char *) 0);
2993 include_paths[include_path_count - 1] = path;
2997 adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
3001 if ((section->flags & SEC_DEBUGGING) == 0)
3003 bfd_boolean *has_reloc_p = (bfd_boolean *) arg;
3004 section->vma += adjust_section_vma;
3006 section->lma += adjust_section_vma;
3010 /* Dump selected contents of ABFD. */
3013 dump_bfd (bfd *abfd)
3015 /* If we are adjusting section VMA's, change them all now. Changing
3016 the BFD information is a hack. However, we must do it, or
3017 bfd_find_nearest_line will not do the right thing. */
3018 if (adjust_section_vma != 0)
3020 bfd_boolean has_reloc = (abfd->flags & HAS_RELOC);
3021 bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
3024 if (! dump_debugging_tags)
3025 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
3028 print_arelt_descr (stdout, abfd, TRUE);
3029 if (dump_file_header)
3030 dump_bfd_header (abfd);
3031 if (dump_private_headers)
3032 dump_bfd_private_header (abfd);
3033 if (! dump_debugging_tags)
3035 if (dump_section_headers)
3036 dump_headers (abfd);
3042 || dump_dwarf_section_info)
3043 syms = slurp_symtab (abfd);
3044 if (dump_dynamic_symtab || dump_dynamic_reloc_info
3045 || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
3046 dynsyms = slurp_dynamic_symtab (abfd);
3049 synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
3050 dynsymcount, dynsyms, &synthsyms);
3056 dump_symbols (abfd, FALSE);
3057 if (dump_dynamic_symtab)
3058 dump_symbols (abfd, TRUE);
3059 if (dump_dwarf_section_info)
3061 if (dump_stab_section_info)
3063 if (dump_reloc_info && ! disassemble)
3065 if (dump_dynamic_reloc_info && ! disassemble)
3066 dump_dynamic_relocs (abfd);
3067 if (dump_section_contents)
3070 disassemble_data (abfd);
3076 dhandle = read_debugging_info (abfd, syms, symcount, TRUE);
3077 if (dhandle != NULL)
3079 if (!print_debugging_info (stdout, dhandle, abfd, syms,
3081 dump_debugging_tags ? TRUE : FALSE))
3083 non_fatal (_("%s: printing debugging information failed"),
3084 bfd_get_filename (abfd));
3088 /* PR 6483: If there was no STABS or IEEE debug
3089 info in the file, try DWARF instead. */
3090 else if (! dump_dwarf_section_info)
3120 display_bfd (bfd *abfd)
3124 if (bfd_check_format_matches (abfd, bfd_object, &matching))
3130 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3132 nonfatal (bfd_get_filename (abfd));
3133 list_matching_formats (matching);
3138 if (bfd_get_error () != bfd_error_file_not_recognized)
3140 nonfatal (bfd_get_filename (abfd));
3144 if (bfd_check_format_matches (abfd, bfd_core, &matching))
3150 nonfatal (bfd_get_filename (abfd));
3152 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3154 list_matching_formats (matching);
3160 display_file (char *filename, char *target)
3165 if (get_file_size (filename) < 1)
3171 file = bfd_openr (filename, target);
3174 nonfatal (filename);
3178 /* If the file is an archive, process all of its elements. */
3179 if (bfd_check_format (file, bfd_archive))
3181 bfd *last_arfile = NULL;
3183 printf (_("In archive %s:\n"), bfd_get_filename (file));
3186 bfd_set_error (bfd_error_no_error);
3188 arfile = bfd_openr_next_archived_file (file, arfile);
3191 if (bfd_get_error () != bfd_error_no_more_archived_files)
3192 nonfatal (bfd_get_filename (file));
3196 display_bfd (arfile);
3198 if (last_arfile != NULL)
3199 bfd_close (last_arfile);
3200 last_arfile = arfile;
3203 if (last_arfile != NULL)
3204 bfd_close (last_arfile);
3213 main (int argc, char **argv)
3216 char *target = default_target;
3217 bfd_boolean seenflag = FALSE;
3219 #if defined (HAVE_SETLOCALE)
3220 #if defined (HAVE_LC_MESSAGES)
3221 setlocale (LC_MESSAGES, "");
3223 setlocale (LC_CTYPE, "");
3226 bindtextdomain (PACKAGE, LOCALEDIR);
3227 textdomain (PACKAGE);
3229 program_name = *argv;
3230 xmalloc_set_program_name (program_name);
3232 START_PROGRESS (program_name, 0);
3234 expandargv (&argc, &argv);
3237 set_default_bfd_target ();
3239 while ((c = getopt_long (argc, argv,
3240 "pib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::",
3241 long_options, (int *) 0))
3247 break; /* We've been given a long option. */
3252 if (disassembler_options)
3253 /* Ignore potential memory leak for now. */
3254 disassembler_options = concat (disassembler_options, ",",
3255 optarg, (const char *) NULL);
3257 disassembler_options = optarg;
3263 display_file_offsets = TRUE;
3266 with_line_numbers = TRUE;
3275 enum demangling_styles style;
3277 style = cplus_demangle_name_to_style (optarg);
3278 if (style == unknown_demangling)
3279 fatal (_("unknown demangling style `%s'"),
3282 cplus_demangle_set_style (style);
3288 case OPTION_ADJUST_VMA:
3289 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
3291 case OPTION_START_ADDRESS:
3292 start_address = parse_vma (optarg, "--start-address");
3293 if ((stop_address != (bfd_vma) -1) && stop_address <= start_address)
3294 fatal (_("error: the start address should be before the end address"));
3296 case OPTION_STOP_ADDRESS:
3297 stop_address = parse_vma (optarg, "--stop-address");
3298 if ((start_address != (bfd_vma) -1) && stop_address <= start_address)
3299 fatal (_("error: the stop address should be after the start address"));
3303 prefix_length = strlen (prefix);
3304 /* Remove an unnecessary trailing '/' */
3305 while (IS_DIR_SEPARATOR (prefix[prefix_length - 1]))
3308 case OPTION_PREFIX_STRIP:
3309 prefix_strip = atoi (optarg);
3310 if (prefix_strip < 0)
3311 fatal (_("error: prefix strip must be non-negative"));
3313 case OPTION_INSN_WIDTH:
3314 insn_width = strtoul (optarg, NULL, 0);
3315 if (insn_width <= 0)
3316 fatal (_("error: instruction width must be positive"));
3319 if (strcmp (optarg, "B") == 0)
3320 endian = BFD_ENDIAN_BIG;
3321 else if (strcmp (optarg, "L") == 0)
3322 endian = BFD_ENDIAN_LITTLE;
3325 non_fatal (_("unrecognized -E option"));
3330 if (strncmp (optarg, "big", strlen (optarg)) == 0)
3331 endian = BFD_ENDIAN_BIG;
3332 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
3333 endian = BFD_ENDIAN_LITTLE;
3336 non_fatal (_("unrecognized --endian type `%s'"), optarg);
3342 dump_file_header = TRUE;
3346 formats_info = TRUE;
3350 add_include_path (optarg);
3353 dump_private_headers = TRUE;
3357 dump_private_headers = TRUE;
3359 dump_reloc_info = TRUE;
3360 dump_file_header = TRUE;
3361 dump_ar_hdrs = TRUE;
3362 dump_section_headers = TRUE;
3370 dump_dynamic_symtab = TRUE;
3378 disassemble_zeroes = TRUE;
3382 disassemble_all = TRUE;
3387 with_source_code = TRUE;
3396 dump_debugging_tags = 1;
3401 dump_dwarf_section_info = TRUE;
3404 dwarf_select_sections_by_letters (optarg);
3406 dwarf_select_sections_all ();
3409 dump_dwarf_section_info = TRUE;
3412 dwarf_select_sections_by_names (optarg);
3414 dwarf_select_sections_all ();
3417 dump_stab_section_info = TRUE;
3421 dump_section_contents = TRUE;
3425 dump_reloc_info = TRUE;
3429 dump_dynamic_reloc_info = TRUE;
3433 dump_ar_hdrs = TRUE;
3437 dump_section_headers = TRUE;
3445 show_version = TRUE;
3455 print_version ("objdump");
3461 exit_status = display_info ();
3465 display_file ("a.out", target);
3467 for (; optind < argc;)
3468 display_file (argv[optind++], target);
3473 END_PROGRESS (program_name);