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, 2011,
4 2012, 2013 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. */
61 #include "safe-ctype.h"
63 #include "libiberty.h"
65 #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 char *dump_private_options; /* -P */
96 static int prefix_addresses; /* --prefix-addresses */
97 static int with_line_numbers; /* -l */
98 static bfd_boolean with_source_code; /* -S */
99 static int show_raw_insn; /* --show-raw-insn */
100 static int dump_dwarf_section_info; /* --dwarf */
101 static int dump_stab_section_info; /* --stabs */
102 static int do_demangle; /* -C, --demangle */
103 static bfd_boolean disassemble; /* -d */
104 static bfd_boolean disassemble_all; /* -D */
105 static int disassemble_zeroes; /* --disassemble-zeroes */
106 static bfd_boolean formats_info; /* -i */
107 static int wide_output; /* -w */
108 static int insn_width; /* --insn-width */
109 static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
110 static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
111 static int dump_debugging; /* --debugging */
112 static int dump_debugging_tags; /* --debugging-tags */
113 static int suppress_bfd_header;
114 static int dump_special_syms = 0; /* --special-syms */
115 static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
116 static int file_start_context = 0; /* --file-start-context */
117 static bfd_boolean display_file_offsets;/* -F */
118 static const char *prefix; /* --prefix */
119 static int prefix_strip; /* --prefix-strip */
120 static size_t prefix_length;
122 /* A structure to record the sections mentioned in -j switches. */
125 const char * name; /* The name of the section. */
126 bfd_boolean seen; /* A flag to indicate that the section has been found in one or more input files. */
127 struct only * next; /* Pointer to the next structure in the list. */
129 /* Pointer to an array of 'only' structures.
130 This pointer is NULL if the -j switch has not been used. */
131 static struct only * only_list = NULL;
133 /* Variables for handling include file path table. */
134 static const char **include_paths;
135 static int include_path_count;
137 /* Extra info to pass to the section disassembler and address printing
139 struct objdump_disasm_info
143 bfd_boolean require_sec;
144 arelent ** dynrelbuf;
146 disassembler_ftype disassemble_fn;
150 /* Architecture to disassemble for, or default if NULL. */
151 static char *machine = NULL;
153 /* Target specific options to the disassembler. */
154 static char *disassembler_options = NULL;
156 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
157 static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
159 /* The symbol table. */
160 static asymbol **syms;
162 /* Number of symbols in `syms'. */
163 static long symcount = 0;
165 /* The sorted symbol table. */
166 static asymbol **sorted_syms;
168 /* Number of symbols in `sorted_syms'. */
169 static long sorted_symcount = 0;
171 /* The dynamic symbol table. */
172 static asymbol **dynsyms;
174 /* The synthetic symbol table. */
175 static asymbol *synthsyms;
176 static long synthcount = 0;
178 /* Number of symbols in `dynsyms'. */
179 static long dynsymcount = 0;
181 static bfd_byte *stabs;
182 static bfd_size_type stab_size;
185 static bfd_size_type stabstr_size;
187 static bfd_boolean is_relocatable = FALSE;
189 /* Handlers for -P/--private. */
190 static const struct objdump_private_desc * const objdump_private_vectors[] =
192 OBJDUMP_PRIVATE_VECTORS
197 usage (FILE *stream, int status)
199 fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name);
200 fprintf (stream, _(" Display information from object <file(s)>.\n"));
201 fprintf (stream, _(" At least one of the following switches must be given:\n"));
202 fprintf (stream, _("\
203 -a, --archive-headers Display archive header information\n\
204 -f, --file-headers Display the contents of the overall file header\n\
205 -p, --private-headers Display object format specific file header contents\n\
206 -P, --private=OPT,OPT... Display object format specific contents\n\
207 -h, --[section-]headers Display the contents of the section headers\n\
208 -x, --all-headers Display the contents of all headers\n\
209 -d, --disassemble Display assembler contents of executable sections\n\
210 -D, --disassemble-all Display assembler contents of all sections\n\
211 -S, --source Intermix source code with disassembly\n\
212 -s, --full-contents Display the full contents of all sections requested\n\
213 -g, --debugging Display debug information in object file\n\
214 -e, --debugging-tags Display debug information using ctags style\n\
215 -G, --stabs Display (in raw form) any STABS info in the file\n\
216 -W[lLiaprmfFsoRt] or\n\
217 --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,\n\
218 =frames-interp,=str,=loc,=Ranges,=pubtypes,\n\
219 =gdb_index,=trace_info,=trace_abbrev,=trace_aranges,\n\
221 Display DWARF info in the file\n\
222 -t, --syms Display the contents of the symbol table(s)\n\
223 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
224 -r, --reloc Display the relocation entries in the file\n\
225 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
226 @<file> Read options from <file>\n\
227 -v, --version Display this program's version number\n\
228 -i, --info List object formats and architectures supported\n\
229 -H, --help Display this information\n\
233 const struct objdump_private_desc * const *desc;
235 fprintf (stream, _("\n The following switches are optional:\n"));
236 fprintf (stream, _("\
237 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
238 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
239 -j, --section=NAME Only display information for section NAME\n\
240 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
241 -EB --endian=big Assume big endian format when disassembling\n\
242 -EL --endian=little Assume little endian format when disassembling\n\
243 --file-start-context Include context from start of file (with -S)\n\
244 -I, --include=DIR Add DIR to search list for source files\n\
245 -l, --line-numbers Include line numbers and filenames in output\n\
246 -F, --file-offsets Include file offsets when displaying information\n\
247 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
248 The STYLE, if specified, can be `auto', `gnu',\n\
249 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
251 -w, --wide Format output for more than 80 columns\n\
252 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
253 --start-address=ADDR Only process data whose address is >= ADDR\n\
254 --stop-address=ADDR Only process data whose address is <= ADDR\n\
255 --prefix-addresses Print complete address alongside disassembly\n\
256 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
257 --insn-width=WIDTH Display WIDTH bytes on a single line for -d\n\
258 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
259 --special-syms Include special symbols in symbol dumps\n\
260 --prefix=PREFIX Add PREFIX to absolute paths for -S\n\
261 --prefix-strip=LEVEL Strip initial directory names for -S\n"));
262 fprintf (stream, _("\
263 --dwarf-depth=N Do not display DIEs at depth N or greater\n\
264 --dwarf-start=N Display DIEs starting with N, at the same depth\n\
266 --dwarf-check Make additional dwarf internal consistency checks.\
268 list_supported_targets (program_name, stream);
269 list_supported_architectures (program_name, stream);
271 disassembler_usage (stream);
273 if (objdump_private_vectors[0] != NULL)
276 _("\nOptions supported for -P/--private switch:\n"));
277 for (desc = objdump_private_vectors; *desc != NULL; desc++)
278 (*desc)->help (stream);
281 if (REPORT_BUGS_TO[0] && status == 0)
282 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
286 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
290 OPTION_START_ADDRESS,
302 static struct option long_options[]=
304 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
305 {"all-headers", no_argument, NULL, 'x'},
306 {"private-headers", no_argument, NULL, 'p'},
307 {"private", required_argument, NULL, 'P'},
308 {"architecture", required_argument, NULL, 'm'},
309 {"archive-headers", no_argument, NULL, 'a'},
310 {"debugging", no_argument, NULL, 'g'},
311 {"debugging-tags", no_argument, NULL, 'e'},
312 {"demangle", optional_argument, NULL, 'C'},
313 {"disassemble", no_argument, NULL, 'd'},
314 {"disassemble-all", no_argument, NULL, 'D'},
315 {"disassembler-options", required_argument, NULL, 'M'},
316 {"disassemble-zeroes", no_argument, NULL, 'z'},
317 {"dynamic-reloc", no_argument, NULL, 'R'},
318 {"dynamic-syms", no_argument, NULL, 'T'},
319 {"endian", required_argument, NULL, OPTION_ENDIAN},
320 {"file-headers", no_argument, NULL, 'f'},
321 {"file-offsets", no_argument, NULL, 'F'},
322 {"file-start-context", no_argument, &file_start_context, 1},
323 {"full-contents", no_argument, NULL, 's'},
324 {"headers", no_argument, NULL, 'h'},
325 {"help", no_argument, NULL, 'H'},
326 {"info", no_argument, NULL, 'i'},
327 {"line-numbers", no_argument, NULL, 'l'},
328 {"no-show-raw-insn", no_argument, &show_raw_insn, -1},
329 {"prefix-addresses", no_argument, &prefix_addresses, 1},
330 {"reloc", no_argument, NULL, 'r'},
331 {"section", required_argument, NULL, 'j'},
332 {"section-headers", no_argument, NULL, 'h'},
333 {"show-raw-insn", no_argument, &show_raw_insn, 1},
334 {"source", no_argument, NULL, 'S'},
335 {"special-syms", no_argument, &dump_special_syms, 1},
336 {"include", required_argument, NULL, 'I'},
337 {"dwarf", optional_argument, NULL, OPTION_DWARF},
338 {"stabs", no_argument, NULL, 'G'},
339 {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
340 {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
341 {"syms", no_argument, NULL, 't'},
342 {"target", required_argument, NULL, 'b'},
343 {"version", no_argument, NULL, 'V'},
344 {"wide", no_argument, NULL, 'w'},
345 {"prefix", required_argument, NULL, OPTION_PREFIX},
346 {"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP},
347 {"insn-width", required_argument, NULL, OPTION_INSN_WIDTH},
348 {"dwarf-depth", required_argument, 0, OPTION_DWARF_DEPTH},
349 {"dwarf-start", required_argument, 0, OPTION_DWARF_START},
350 {"dwarf-check", no_argument, 0, OPTION_DWARF_CHECK},
351 {0, no_argument, 0, 0}
355 nonfatal (const char *msg)
361 /* Returns TRUE if the specified section should be dumped. */
364 process_section_p (asection * section)
368 if (only_list == NULL)
371 for (only = only_list; only; only = only->next)
372 if (strcmp (only->name, section->name) == 0)
381 /* Add an entry to the 'only' list. */
384 add_only (char * name)
388 /* First check to make sure that we do not
389 already have an entry for this name. */
390 for (only = only_list; only; only = only->next)
391 if (strcmp (only->name, name) == 0)
394 only = xmalloc (sizeof * only);
397 only->next = only_list;
401 /* Release the memory used by the 'only' list.
402 PR 11225: Issue a warning message for unseen sections.
403 Only do this if none of the sections were seen. This is mainly to support
404 tools like the GAS testsuite where an object file is dumped with a list of
405 generic section names known to be present in a range of different file
409 free_only_list (void)
411 bfd_boolean at_least_one_seen = FALSE;
415 if (only_list == NULL)
418 for (only = only_list; only; only = only->next)
421 at_least_one_seen = TRUE;
425 for (only = only_list; only; only = next)
427 if (! at_least_one_seen)
429 non_fatal (_("section '%s' mentioned in a -j option, "
430 "but not found in any input file"),
441 dump_section_header (bfd *abfd, asection *section,
442 void *ignored ATTRIBUTE_UNUSED)
445 unsigned int opb = bfd_octets_per_byte (abfd);
447 /* Ignore linker created section. See elfNN_ia64_object_p in
449 if (section->flags & SEC_LINKER_CREATED)
452 /* PR 10413: Skip sections that we are ignoring. */
453 if (! process_section_p (section))
456 printf ("%3d %-13s %08lx ", section->index,
457 bfd_get_section_name (abfd, section),
458 (unsigned long) bfd_section_size (abfd, section) / opb);
459 bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
461 bfd_printf_vma (abfd, section->lma);
462 printf (" %08lx 2**%u", (unsigned long) section->filepos,
463 bfd_get_section_alignment (abfd, section));
469 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
471 PF (SEC_HAS_CONTENTS, "CONTENTS");
472 PF (SEC_ALLOC, "ALLOC");
473 PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
474 PF (SEC_LOAD, "LOAD");
475 PF (SEC_RELOC, "RELOC");
476 PF (SEC_READONLY, "READONLY");
477 PF (SEC_CODE, "CODE");
478 PF (SEC_DATA, "DATA");
480 PF (SEC_DEBUGGING, "DEBUGGING");
481 PF (SEC_NEVER_LOAD, "NEVER_LOAD");
482 PF (SEC_EXCLUDE, "EXCLUDE");
483 PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
484 if (bfd_get_arch (abfd) == bfd_arch_tic54x)
486 PF (SEC_TIC54X_BLOCK, "BLOCK");
487 PF (SEC_TIC54X_CLINK, "CLINK");
489 PF (SEC_SMALL_DATA, "SMALL_DATA");
490 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
491 PF (SEC_COFF_SHARED, "SHARED");
492 PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
493 PF (SEC_GROUP, "GROUP");
495 if ((section->flags & SEC_LINK_ONCE) != 0)
498 struct coff_comdat_info *comdat;
500 switch (section->flags & SEC_LINK_DUPLICATES)
504 case SEC_LINK_DUPLICATES_DISCARD:
505 ls = "LINK_ONCE_DISCARD";
507 case SEC_LINK_DUPLICATES_ONE_ONLY:
508 ls = "LINK_ONCE_ONE_ONLY";
510 case SEC_LINK_DUPLICATES_SAME_SIZE:
511 ls = "LINK_ONCE_SAME_SIZE";
513 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
514 ls = "LINK_ONCE_SAME_CONTENTS";
517 printf ("%s%s", comma, ls);
519 comdat = bfd_coff_get_comdat_section (abfd, section);
521 printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
531 dump_headers (bfd *abfd)
533 printf (_("Sections:\n"));
536 printf (_("Idx Name Size VMA LMA File off Algn"));
538 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
539 if (bfd_get_arch_size (abfd) == 32)
540 printf (_("Idx Name Size VMA LMA File off Algn"));
542 printf (_("Idx Name Size VMA LMA File off Algn"));
546 printf (_(" Flags"));
549 bfd_map_over_sections (abfd, dump_section_header, NULL);
553 slurp_symtab (bfd *abfd)
558 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
564 storage = bfd_get_symtab_upper_bound (abfd);
566 bfd_fatal (bfd_get_filename (abfd));
568 sy = (asymbol **) xmalloc (storage);
570 symcount = bfd_canonicalize_symtab (abfd, sy);
572 bfd_fatal (bfd_get_filename (abfd));
576 /* Read in the dynamic symbols. */
579 slurp_dynamic_symtab (bfd *abfd)
584 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
587 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
589 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
595 bfd_fatal (bfd_get_filename (abfd));
598 sy = (asymbol **) xmalloc (storage);
600 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
602 bfd_fatal (bfd_get_filename (abfd));
606 /* Filter out (in place) symbols that are useless for disassembly.
607 COUNT is the number of elements in SYMBOLS.
608 Return the number of useful symbols. */
611 remove_useless_symbols (asymbol **symbols, long count)
613 asymbol **in_ptr = symbols, **out_ptr = symbols;
617 asymbol *sym = *in_ptr++;
619 if (sym->name == NULL || sym->name[0] == '\0')
621 if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
623 if (bfd_is_und_section (sym->section)
624 || bfd_is_com_section (sym->section))
629 return out_ptr - symbols;
632 /* Sort symbols into value order. */
635 compare_symbols (const void *ap, const void *bp)
637 const asymbol *a = * (const asymbol **) ap;
638 const asymbol *b = * (const asymbol **) bp;
648 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
650 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
653 if (a->section > b->section)
655 else if (a->section < b->section)
658 an = bfd_asymbol_name (a);
659 bn = bfd_asymbol_name (b);
663 /* The symbols gnu_compiled and gcc2_compiled convey no real
664 information, so put them after other symbols with the same value. */
665 af = (strstr (an, "gnu_compiled") != NULL
666 || strstr (an, "gcc2_compiled") != NULL);
667 bf = (strstr (bn, "gnu_compiled") != NULL
668 || strstr (bn, "gcc2_compiled") != NULL);
675 /* We use a heuristic for the file name, to try to sort it after
676 more useful symbols. It may not work on non Unix systems, but it
677 doesn't really matter; the only difference is precisely which
678 symbol names get printed. */
680 #define file_symbol(s, sn, snl) \
681 (((s)->flags & BSF_FILE) != 0 \
682 || ((sn)[(snl) - 2] == '.' \
683 && ((sn)[(snl) - 1] == 'o' \
684 || (sn)[(snl) - 1] == 'a')))
686 af = file_symbol (a, an, anl);
687 bf = file_symbol (b, bn, bnl);
694 /* Try to sort global symbols before local symbols before function
695 symbols before debugging symbols. */
700 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
702 if ((aflags & BSF_DEBUGGING) != 0)
707 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
709 if ((aflags & BSF_FUNCTION) != 0)
714 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
716 if ((aflags & BSF_LOCAL) != 0)
721 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
723 if ((aflags & BSF_GLOBAL) != 0)
729 /* Symbols that start with '.' might be section names, so sort them
730 after symbols that don't start with '.'. */
731 if (an[0] == '.' && bn[0] != '.')
733 if (an[0] != '.' && bn[0] == '.')
736 /* Finally, if we can't distinguish them in any other way, try to
737 get consistent results by sorting the symbols by name. */
738 return strcmp (an, bn);
741 /* Sort relocs into address order. */
744 compare_relocs (const void *ap, const void *bp)
746 const arelent *a = * (const arelent **) ap;
747 const arelent *b = * (const arelent **) bp;
749 if (a->address > b->address)
751 else if (a->address < b->address)
754 /* So that associated relocations tied to the same address show up
755 in the correct order, we don't do any further sorting. */
764 /* Print an address (VMA) to the output stream in INFO.
765 If SKIP_ZEROES is TRUE, omit leading zeroes. */
768 objdump_print_value (bfd_vma vma, struct disassemble_info *inf,
769 bfd_boolean skip_zeroes)
773 struct objdump_disasm_info *aux;
775 aux = (struct objdump_disasm_info *) inf->application_data;
776 bfd_sprintf_vma (aux->abfd, buf, vma);
781 for (p = buf; *p == '0'; ++p)
786 (*inf->fprintf_func) (inf->stream, "%s", p);
789 /* Print the name of a symbol. */
792 objdump_print_symname (bfd *abfd, struct disassemble_info *inf,
799 name = bfd_asymbol_name (sym);
800 if (do_demangle && name[0] != '\0')
802 /* Demangle the name. */
803 alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
809 (*inf->fprintf_func) (inf->stream, "%s", name);
817 /* Locate a symbol given a bfd and a section (from INFO->application_data),
818 and a VMA. If INFO->application_data->require_sec is TRUE, then always
819 require the symbol to be in the section. Returns NULL if there is no
820 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
821 of the symbol in sorted_syms. */
824 find_symbol_for_address (bfd_vma vma,
825 struct disassemble_info *inf,
828 /* @@ Would it speed things up to cache the last two symbols returned,
829 and maybe their address ranges? For many processors, only one memory
830 operand can be present at a time, so the 2-entry cache wouldn't be
831 constantly churned by code doing heavy memory accesses. */
833 /* Indices in `sorted_syms'. */
835 long max_count = sorted_symcount;
837 struct objdump_disasm_info *aux;
841 bfd_boolean want_section;
843 if (sorted_symcount < 1)
846 aux = (struct objdump_disasm_info *) inf->application_data;
849 opb = inf->octets_per_byte;
851 /* Perform a binary search looking for the closest symbol to the
852 required value. We are searching the range (min, max_count]. */
853 while (min + 1 < max_count)
857 thisplace = (max_count + min) / 2;
858 sym = sorted_syms[thisplace];
860 if (bfd_asymbol_value (sym) > vma)
861 max_count = thisplace;
862 else if (bfd_asymbol_value (sym) < vma)
871 /* The symbol we want is now in min, the low end of the range we
872 were searching. If there are several symbols with the same
873 value, we want the first one. */
876 && (bfd_asymbol_value (sorted_syms[thisplace])
877 == bfd_asymbol_value (sorted_syms[thisplace - 1])))
880 /* Prefer a symbol in the current section if we have multple symbols
881 with the same value, as can occur with overlays or zero size
884 while (min < max_count
885 && (bfd_asymbol_value (sorted_syms[min])
886 == bfd_asymbol_value (sorted_syms[thisplace])))
888 if (sorted_syms[min]->section == sec
889 && inf->symbol_is_valid (sorted_syms[min], inf))
896 return sorted_syms[thisplace];
901 /* If the file is relocatable, and the symbol could be from this
902 section, prefer a symbol from this section over symbols from
903 others, even if the other symbol's value might be closer.
905 Note that this may be wrong for some symbol references if the
906 sections have overlapping memory ranges, but in that case there's
907 no way to tell what's desired without looking at the relocation
910 Also give the target a chance to reject symbols. */
911 want_section = (aux->require_sec
912 || ((abfd->flags & HAS_RELOC) != 0
913 && vma >= bfd_get_section_vma (abfd, sec)
914 && vma < (bfd_get_section_vma (abfd, sec)
915 + bfd_section_size (abfd, sec) / opb)));
916 if ((sorted_syms[thisplace]->section != sec && want_section)
917 || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
920 long newplace = sorted_symcount;
922 for (i = min - 1; i >= 0; i--)
924 if ((sorted_syms[i]->section == sec || !want_section)
925 && inf->symbol_is_valid (sorted_syms[i], inf))
927 if (newplace == sorted_symcount)
930 if (bfd_asymbol_value (sorted_syms[i])
931 != bfd_asymbol_value (sorted_syms[newplace]))
934 /* Remember this symbol and keep searching until we reach
935 an earlier address. */
940 if (newplace != sorted_symcount)
941 thisplace = newplace;
944 /* We didn't find a good symbol with a smaller value.
945 Look for one with a larger value. */
946 for (i = thisplace + 1; i < sorted_symcount; i++)
948 if ((sorted_syms[i]->section == sec || !want_section)
949 && inf->symbol_is_valid (sorted_syms[i], inf))
957 if ((sorted_syms[thisplace]->section != sec && want_section)
958 || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
959 /* There is no suitable symbol. */
966 return sorted_syms[thisplace];
969 /* Print an address and the offset to the nearest symbol. */
972 objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym,
973 bfd_vma vma, struct disassemble_info *inf,
974 bfd_boolean skip_zeroes)
976 objdump_print_value (vma, inf, skip_zeroes);
982 (*inf->fprintf_func) (inf->stream, " <%s",
983 bfd_get_section_name (abfd, sec));
984 secaddr = bfd_get_section_vma (abfd, sec);
987 (*inf->fprintf_func) (inf->stream, "-0x");
988 objdump_print_value (secaddr - vma, inf, TRUE);
990 else if (vma > secaddr)
992 (*inf->fprintf_func) (inf->stream, "+0x");
993 objdump_print_value (vma - secaddr, inf, TRUE);
995 (*inf->fprintf_func) (inf->stream, ">");
999 (*inf->fprintf_func) (inf->stream, " <");
1000 objdump_print_symname (abfd, inf, sym);
1001 if (bfd_asymbol_value (sym) > vma)
1003 (*inf->fprintf_func) (inf->stream, "-0x");
1004 objdump_print_value (bfd_asymbol_value (sym) - vma, inf, TRUE);
1006 else if (vma > bfd_asymbol_value (sym))
1008 (*inf->fprintf_func) (inf->stream, "+0x");
1009 objdump_print_value (vma - bfd_asymbol_value (sym), inf, TRUE);
1011 (*inf->fprintf_func) (inf->stream, ">");
1014 if (display_file_offsets)
1015 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
1016 (long int)(sec->filepos + (vma - sec->vma)));
1019 /* Print an address (VMA), symbolically if possible.
1020 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
1023 objdump_print_addr (bfd_vma vma,
1024 struct disassemble_info *inf,
1025 bfd_boolean skip_zeroes)
1027 struct objdump_disasm_info *aux;
1028 asymbol *sym = NULL;
1029 bfd_boolean skip_find = FALSE;
1031 aux = (struct objdump_disasm_info *) inf->application_data;
1033 if (sorted_symcount < 1)
1035 (*inf->fprintf_func) (inf->stream, "0x");
1036 objdump_print_value (vma, inf, skip_zeroes);
1038 if (display_file_offsets)
1039 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
1040 (long int)(aux->sec->filepos + (vma - aux->sec->vma)));
1044 if (aux->reloc != NULL
1045 && aux->reloc->sym_ptr_ptr != NULL
1046 && * aux->reloc->sym_ptr_ptr != NULL)
1048 sym = * aux->reloc->sym_ptr_ptr;
1050 /* Adjust the vma to the reloc. */
1051 vma += bfd_asymbol_value (sym);
1053 if (bfd_is_und_section (bfd_get_section (sym)))
1058 sym = find_symbol_for_address (vma, inf, NULL);
1060 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, inf,
1064 /* Print VMA to INFO. This function is passed to the disassembler
1068 objdump_print_address (bfd_vma vma, struct disassemble_info *inf)
1070 objdump_print_addr (vma, inf, ! prefix_addresses);
1073 /* Determine if the given address has a symbol associated with it. */
1076 objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * inf)
1080 sym = find_symbol_for_address (vma, inf, NULL);
1082 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
1085 /* Hold the last function name and the last line number we displayed
1086 in a disassembly. */
1088 static char *prev_functionname;
1089 static unsigned int prev_line;
1090 static unsigned int prev_discriminator;
1092 /* We keep a list of all files that we have seen when doing a
1093 disassembly with source, so that we know how much of the file to
1094 display. This can be important for inlined functions. */
1096 struct print_file_list
1098 struct print_file_list *next;
1099 const char *filename;
1100 const char *modname;
1103 const char **linemap;
1109 static struct print_file_list *print_files;
1111 /* The number of preceding context lines to show when we start
1112 displaying a file for the first time. */
1114 #define SHOW_PRECEDING_CONTEXT_LINES (5)
1116 /* Read a complete file into memory. */
1119 slurp_file (const char *fn, size_t *size)
1122 int ps = getpagesize ();
1127 int fd = open (fn, O_RDONLY | O_BINARY);
1131 if (fstat (fd, &st) < 0)
1138 msize = (*size + ps - 1) & ~(ps - 1);
1139 map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0);
1140 if (map != (char *) -1L)
1146 map = (const char *) malloc (*size);
1147 if (!map || (size_t) read (fd, (char *) map, *size) != *size)
1149 free ((void *) map);
1156 #define line_map_decrease 5
1158 /* Precompute array of lines for a mapped file. */
1160 static const char **
1161 index_file (const char *map, size_t size, unsigned int *maxline)
1163 const char *p, *lstart, *end;
1164 int chars_per_line = 45; /* First iteration will use 40. */
1165 unsigned int lineno;
1166 const char **linemap = NULL;
1167 unsigned long line_map_size = 0;
1173 for (p = map; p < end; p++)
1177 if (p + 1 < end && p[1] == '\r')
1180 else if (*p == '\r')
1182 if (p + 1 < end && p[1] == '\n')
1188 /* End of line found. */
1190 if (linemap == NULL || line_map_size < lineno + 1)
1192 unsigned long newsize;
1194 chars_per_line -= line_map_decrease;
1195 if (chars_per_line <= 1)
1197 line_map_size = size / chars_per_line + 1;
1198 if (line_map_size < lineno + 1)
1199 line_map_size = lineno + 1;
1200 newsize = line_map_size * sizeof (char *);
1201 linemap = (const char **) xrealloc (linemap, newsize);
1204 linemap[lineno++] = lstart;
1212 /* Tries to open MODNAME, and if successful adds a node to print_files
1213 linked list and returns that node. Returns NULL on failure. */
1215 static struct print_file_list *
1216 try_print_file_open (const char *origname, const char *modname)
1218 struct print_file_list *p;
1220 p = (struct print_file_list *) xmalloc (sizeof (struct print_file_list));
1222 p->map = slurp_file (modname, &p->mapsize);
1229 p->linemap = index_file (p->map, p->mapsize, &p->maxline);
1231 p->filename = origname;
1232 p->modname = modname;
1233 p->next = print_files;
1239 /* If the source file, as described in the symtab, is not found
1240 try to locate it in one of the paths specified with -I
1241 If found, add location to print_files linked list. */
1243 static struct print_file_list *
1244 update_source_path (const char *filename)
1246 struct print_file_list *p;
1250 p = try_print_file_open (filename, filename);
1254 if (include_path_count == 0)
1257 /* Get the name of the file. */
1258 fname = lbasename (filename);
1260 /* If file exists under a new path, we need to add it to the list
1261 so that show_line knows about it. */
1262 for (i = 0; i < include_path_count; i++)
1264 char *modname = concat (include_paths[i], "/", fname, (const char *) 0);
1266 p = try_print_file_open (filename, modname);
1276 /* Print a source file line. */
1279 print_line (struct print_file_list *p, unsigned int linenum)
1285 if (linenum >= p->maxline)
1287 l = p->linemap [linenum];
1288 /* Test fwrite return value to quiet glibc warning. */
1289 len = strcspn (l, "\n\r");
1290 if (len == 0 || fwrite (l, len, 1, stdout) == 1)
1294 /* Print a range of source code lines. */
1297 dump_lines (struct print_file_list *p, unsigned int start, unsigned int end)
1301 while (start <= end)
1303 print_line (p, start);
1308 /* Show the line number, or the source line, in a disassembly
1312 show_line (bfd *abfd, asection *section, bfd_vma addr_offset)
1314 const char *filename;
1315 const char *functionname;
1316 unsigned int linenumber;
1317 unsigned int discriminator;
1320 if (! with_line_numbers && ! with_source_code)
1323 if (! bfd_find_nearest_line_discriminator (abfd, section, syms, addr_offset,
1324 &filename, &functionname,
1325 &linenumber, &discriminator))
1328 if (filename != NULL && *filename == '\0')
1330 if (functionname != NULL && *functionname == '\0')
1331 functionname = NULL;
1334 && IS_ABSOLUTE_PATH (filename)
1338 const char *fname = filename;
1339 char *path = (char *) alloca (prefix_length + PATH_MAX + 1);
1342 memcpy (path, prefix, prefix_length);
1343 path_up = path + prefix_length;
1345 /* Build relocated filename, stripping off leading directories
1346 from the initial filename if requested. */
1347 if (prefix_strip > 0)
1352 /* Skip selected directory levels. */
1353 for (s = fname + 1; *s != '\0' && level < prefix_strip; s++)
1354 if (IS_DIR_SEPARATOR(*s))
1361 /* Update complete filename. */
1362 strncpy (path_up, fname, PATH_MAX);
1363 path_up[PATH_MAX] = '\0';
1371 if (with_line_numbers)
1373 if (functionname != NULL
1374 && (prev_functionname == NULL
1375 || strcmp (functionname, prev_functionname) != 0))
1376 printf ("%s():\n", functionname);
1377 if (linenumber > 0 && (linenumber != prev_line ||
1378 (discriminator != prev_discriminator)))
1380 if (discriminator > 0)
1381 printf ("%s:%u (discriminator %u)\n", filename == NULL ? "???" : filename,
1382 linenumber, discriminator);
1384 printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
1388 if (with_source_code
1392 struct print_file_list **pp, *p;
1395 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1396 if (filename_cmp ((*pp)->filename, filename) == 0)
1403 filename = xstrdup (filename);
1404 p = update_source_path (filename);
1407 if (p != NULL && linenumber != p->last_line)
1409 if (file_start_context && p->first)
1413 l = linenumber - SHOW_PRECEDING_CONTEXT_LINES;
1414 if (l >= linenumber)
1416 if (p->last_line >= l && p->last_line <= linenumber)
1417 l = p->last_line + 1;
1419 dump_lines (p, l, linenumber);
1420 p->last_line = linenumber;
1425 if (functionname != NULL
1426 && (prev_functionname == NULL
1427 || strcmp (functionname, prev_functionname) != 0))
1429 if (prev_functionname != NULL)
1430 free (prev_functionname);
1431 prev_functionname = (char *) xmalloc (strlen (functionname) + 1);
1432 strcpy (prev_functionname, functionname);
1435 if (linenumber > 0 && linenumber != prev_line)
1436 prev_line = linenumber;
1438 if (discriminator != prev_discriminator)
1439 prev_discriminator = discriminator;
1442 /* Pseudo FILE object for strings. */
1450 /* sprintf to a "stream". */
1452 static int ATTRIBUTE_PRINTF_2
1453 objdump_sprintf (SFILE *f, const char *format, ...)
1460 size_t space = f->alloc - f->pos;
1462 va_start (args, format);
1463 n = vsnprintf (f->buffer + f->pos, space, format, args);
1469 f->alloc = (f->alloc + n) * 2;
1470 f->buffer = (char *) xrealloc (f->buffer, f->alloc);
1477 /* The number of zeroes we want to see before we start skipping them.
1478 The number is arbitrarily chosen. */
1480 #define DEFAULT_SKIP_ZEROES 8
1482 /* The number of zeroes to skip at the end of a section. If the
1483 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1484 SKIP_ZEROES, they will be disassembled. If there are fewer than
1485 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1486 attempt to avoid disassembling zeroes inserted by section
1489 #define DEFAULT_SKIP_ZEROES_AT_END 3
1491 /* Disassemble some data in memory between given values. */
1494 disassemble_bytes (struct disassemble_info * inf,
1495 disassembler_ftype disassemble_fn,
1498 bfd_vma start_offset,
1499 bfd_vma stop_offset,
1502 arelent ** relppend)
1504 struct objdump_disasm_info *aux;
1506 int octets_per_line;
1507 int skip_addr_chars;
1508 bfd_vma addr_offset;
1509 unsigned int opb = inf->octets_per_byte;
1510 unsigned int skip_zeroes = inf->skip_zeroes;
1511 unsigned int skip_zeroes_at_end = inf->skip_zeroes_at_end;
1515 aux = (struct objdump_disasm_info *) inf->application_data;
1519 sfile.buffer = (char *) xmalloc (sfile.alloc);
1523 octets_per_line = insn_width;
1525 octets_per_line = 4;
1527 octets_per_line = 16;
1529 /* Figure out how many characters to skip at the start of an
1530 address, to make the disassembly look nicer. We discard leading
1531 zeroes in chunks of 4, ensuring that there is always a leading
1533 skip_addr_chars = 0;
1534 if (! prefix_addresses)
1538 bfd_sprintf_vma (aux->abfd, buf, section->vma + section->size / opb);
1540 while (buf[skip_addr_chars] == '0')
1543 /* Don't discard zeros on overflow. */
1544 if (buf[skip_addr_chars] == '\0' && section->vma != 0)
1545 skip_addr_chars = 0;
1547 if (skip_addr_chars != 0)
1548 skip_addr_chars = (skip_addr_chars - 1) & -4;
1551 inf->insn_info_valid = 0;
1553 addr_offset = start_offset;
1554 while (addr_offset < stop_offset)
1557 bfd_boolean need_nl = FALSE;
1558 int previous_octets;
1560 /* Remember the length of the previous instruction. */
1561 previous_octets = octets;
1564 /* Make sure we don't use relocs from previous instructions. */
1567 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1569 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1572 if (! disassemble_zeroes
1573 && (inf->insn_info_valid == 0
1574 || inf->branch_delay_insns == 0)
1575 && (z - addr_offset * opb >= skip_zeroes
1576 || (z == stop_offset * opb &&
1577 z - addr_offset * opb < skip_zeroes_at_end)))
1579 /* If there are more nonzero octets to follow, we only skip
1580 zeroes in multiples of 4, to try to avoid running over
1581 the start of an instruction which happens to start with
1583 if (z != stop_offset * opb)
1584 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1586 octets = z - addr_offset * opb;
1588 /* If we are going to display more data, and we are displaying
1589 file offsets, then tell the user how many zeroes we skip
1590 and the file offset from where we resume dumping. */
1591 if (display_file_offsets && ((addr_offset + (octets / opb)) < stop_offset))
1592 printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
1594 (unsigned long) (section->filepos
1595 + (addr_offset + (octets / opb))));
1605 if (with_line_numbers || with_source_code)
1606 show_line (aux->abfd, section, addr_offset);
1608 if (! prefix_addresses)
1612 bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset);
1613 for (s = buf + skip_addr_chars; *s == '0'; s++)
1617 printf ("%s:\t", buf + skip_addr_chars);
1621 aux->require_sec = TRUE;
1622 objdump_print_address (section->vma + addr_offset, inf);
1623 aux->require_sec = FALSE;
1630 inf->fprintf_func = (fprintf_ftype) objdump_sprintf;
1631 inf->stream = &sfile;
1632 inf->bytes_per_line = 0;
1633 inf->bytes_per_chunk = 0;
1634 inf->flags = disassemble_all ? DISASSEMBLE_DATA : 0;
1636 inf->flags |= USER_SPECIFIED_MACHINE_TYPE;
1638 if (inf->disassembler_needs_relocs
1639 && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0
1640 && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0
1641 && *relppp < relppend)
1643 bfd_signed_vma distance_to_rel;
1645 distance_to_rel = (**relppp)->address
1646 - (rel_offset + addr_offset);
1648 /* Check to see if the current reloc is associated with
1649 the instruction that we are about to disassemble. */
1650 if (distance_to_rel == 0
1651 /* FIXME: This is wrong. We are trying to catch
1652 relocs that are addressed part way through the
1653 current instruction, as might happen with a packed
1654 VLIW instruction. Unfortunately we do not know the
1655 length of the current instruction since we have not
1656 disassembled it yet. Instead we take a guess based
1657 upon the length of the previous instruction. The
1658 proper solution is to have a new target-specific
1659 disassembler function which just returns the length
1660 of an instruction at a given address without trying
1661 to display its disassembly. */
1662 || (distance_to_rel > 0
1663 && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
1665 inf->flags |= INSN_HAS_RELOC;
1666 aux->reloc = **relppp;
1670 octets = (*disassemble_fn) (section->vma + addr_offset, inf);
1671 inf->fprintf_func = (fprintf_ftype) fprintf;
1672 inf->stream = stdout;
1673 if (insn_width == 0 && inf->bytes_per_line != 0)
1674 octets_per_line = inf->bytes_per_line;
1675 if (octets < (int) opb)
1678 printf ("%s\n", sfile.buffer);
1681 non_fatal (_("disassemble_fn returned length %d"),
1692 octets = octets_per_line;
1693 if (addr_offset + octets / opb > stop_offset)
1694 octets = (stop_offset - addr_offset) * opb;
1696 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
1698 if (ISPRINT (data[j]))
1699 buf[j - addr_offset * opb] = data[j];
1701 buf[j - addr_offset * opb] = '.';
1703 buf[j - addr_offset * opb] = '\0';
1706 if (prefix_addresses
1708 : show_raw_insn >= 0)
1712 /* If ! prefix_addresses and ! wide_output, we print
1713 octets_per_line octets per line. */
1715 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
1716 pb = octets_per_line;
1718 if (inf->bytes_per_chunk)
1719 bpc = inf->bytes_per_chunk;
1723 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
1727 if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
1729 for (k = bpc - 1; k >= 0; k--)
1730 printf ("%02x", (unsigned) data[j + k]);
1735 for (k = 0; k < bpc; k++)
1736 printf ("%02x", (unsigned) data[j + k]);
1741 for (; pb < octets_per_line; pb += bpc)
1745 for (k = 0; k < bpc; k++)
1750 /* Separate raw data from instruction by extra space. */
1760 printf ("%s", sfile.buffer);
1762 if (prefix_addresses
1764 : show_raw_insn >= 0)
1772 j = addr_offset * opb + pb;
1774 bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb);
1775 for (s = buf + skip_addr_chars; *s == '0'; s++)
1779 printf ("%s:\t", buf + skip_addr_chars);
1781 pb += octets_per_line;
1784 for (; j < addr_offset * opb + pb; j += bpc)
1788 if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
1790 for (k = bpc - 1; k >= 0; k--)
1791 printf ("%02x", (unsigned) data[j + k]);
1796 for (k = 0; k < bpc; k++)
1797 printf ("%02x", (unsigned) data[j + k]);
1810 while ((*relppp) < relppend
1811 && (**relppp)->address < rel_offset + addr_offset + octets / opb)
1813 if (dump_reloc_info || dump_dynamic_reloc_info)
1824 objdump_print_value (section->vma - rel_offset + q->address,
1827 if (q->howto == NULL)
1828 printf (": *unknown*\t");
1829 else if (q->howto->name)
1830 printf (": %s\t", q->howto->name);
1832 printf (": %d\t", q->howto->type);
1834 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
1835 printf ("*unknown*");
1838 const char *sym_name;
1840 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
1841 if (sym_name != NULL && *sym_name != '\0')
1842 objdump_print_symname (aux->abfd, inf, *q->sym_ptr_ptr);
1847 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
1848 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
1849 if (sym_name == NULL || *sym_name == '\0')
1850 sym_name = "*unknown*";
1851 printf ("%s", sym_name);
1857 bfd_signed_vma addend = q->addend;
1865 objdump_print_value (addend, inf, TRUE);
1877 addr_offset += octets / opb;
1880 free (sfile.buffer);
1884 disassemble_section (bfd *abfd, asection *section, void *inf)
1886 const struct elf_backend_data * bed;
1887 bfd_vma sign_adjust = 0;
1888 struct disassemble_info * pinfo = (struct disassemble_info *) inf;
1889 struct objdump_disasm_info * paux;
1890 unsigned int opb = pinfo->octets_per_byte;
1891 bfd_byte * data = NULL;
1892 bfd_size_type datasize = 0;
1893 arelent ** rel_pp = NULL;
1894 arelent ** rel_ppstart = NULL;
1895 arelent ** rel_ppend;
1896 unsigned long stop_offset;
1897 asymbol * sym = NULL;
1901 unsigned long addr_offset;
1903 /* Sections that do not contain machine
1904 code are not normally disassembled. */
1905 if (! disassemble_all
1906 && only_list == NULL
1907 && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
1908 != (SEC_CODE | SEC_HAS_CONTENTS)))
1911 if (! process_section_p (section))
1914 datasize = bfd_get_section_size (section);
1918 if (start_address == (bfd_vma) -1
1919 || start_address < section->vma)
1922 addr_offset = start_address - section->vma;
1924 if (stop_address == (bfd_vma) -1)
1925 stop_offset = datasize / opb;
1928 if (stop_address < section->vma)
1931 stop_offset = stop_address - section->vma;
1932 if (stop_offset > datasize / opb)
1933 stop_offset = datasize / opb;
1936 if (addr_offset >= stop_offset)
1939 /* Decide which set of relocs to use. Load them if necessary. */
1940 paux = (struct objdump_disasm_info *) pinfo->application_data;
1941 if (paux->dynrelbuf)
1943 rel_pp = paux->dynrelbuf;
1944 rel_count = paux->dynrelcount;
1945 /* Dynamic reloc addresses are absolute, non-dynamic are section
1946 relative. REL_OFFSET specifies the reloc address corresponding
1947 to the start of this section. */
1948 rel_offset = section->vma;
1956 if ((section->flags & SEC_RELOC) != 0
1957 && (dump_reloc_info || pinfo->disassembler_needs_relocs))
1961 relsize = bfd_get_reloc_upper_bound (abfd, section);
1963 bfd_fatal (bfd_get_filename (abfd));
1967 rel_ppstart = rel_pp = (arelent **) xmalloc (relsize);
1968 rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms);
1970 bfd_fatal (bfd_get_filename (abfd));
1972 /* Sort the relocs by address. */
1973 qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs);
1977 rel_ppend = rel_pp + rel_count;
1979 data = (bfd_byte *) xmalloc (datasize);
1981 bfd_get_section_contents (abfd, section, data, 0, datasize);
1983 paux->sec = section;
1984 pinfo->buffer = data;
1985 pinfo->buffer_vma = section->vma;
1986 pinfo->buffer_length = datasize;
1987 pinfo->section = section;
1989 /* Skip over the relocs belonging to addresses below the
1991 while (rel_pp < rel_ppend
1992 && (*rel_pp)->address < rel_offset + addr_offset)
1995 printf (_("\nDisassembly of section %s:\n"), section->name);
1997 /* Find the nearest symbol forwards from our current position. */
1998 paux->require_sec = TRUE;
1999 sym = (asymbol *) find_symbol_for_address (section->vma + addr_offset,
2000 (struct disassemble_info *) inf,
2002 paux->require_sec = FALSE;
2004 /* PR 9774: If the target used signed addresses then we must make
2005 sure that we sign extend the value that we calculate for 'addr'
2006 in the loop below. */
2007 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
2008 && (bed = get_elf_backend_data (abfd)) != NULL
2009 && bed->sign_extend_vma)
2010 sign_adjust = (bfd_vma) 1 << (bed->s->arch_size - 1);
2012 /* Disassemble a block of instructions up to the address associated with
2013 the symbol we have just found. Then print the symbol and find the
2014 next symbol on. Repeat until we have disassembled the entire section
2015 or we have reached the end of the address range we are interested in. */
2016 while (addr_offset < stop_offset)
2020 unsigned long nextstop_offset;
2023 addr = section->vma + addr_offset;
2024 addr = ((addr & ((sign_adjust << 1) - 1)) ^ sign_adjust) - sign_adjust;
2026 if (sym != NULL && bfd_asymbol_value (sym) <= addr)
2031 (x < sorted_symcount
2032 && (bfd_asymbol_value (sorted_syms[x]) <= addr));
2036 pinfo->symbols = sorted_syms + place;
2037 pinfo->num_symbols = x - place;
2038 pinfo->symtab_pos = place;
2042 pinfo->symbols = NULL;
2043 pinfo->num_symbols = 0;
2044 pinfo->symtab_pos = -1;
2047 if (! prefix_addresses)
2049 pinfo->fprintf_func (pinfo->stream, "\n");
2050 objdump_print_addr_with_sym (abfd, section, sym, addr,
2052 pinfo->fprintf_func (pinfo->stream, ":\n");
2055 if (sym != NULL && bfd_asymbol_value (sym) > addr)
2057 else if (sym == NULL)
2061 #define is_valid_next_sym(SYM) \
2062 ((SYM)->section == section \
2063 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
2064 && pinfo->symbol_is_valid (SYM, pinfo))
2066 /* Search forward for the next appropriate symbol in
2067 SECTION. Note that all the symbols are sorted
2068 together into one big array, and that some sections
2069 may have overlapping addresses. */
2070 while (place < sorted_symcount
2071 && ! is_valid_next_sym (sorted_syms [place]))
2074 if (place >= sorted_symcount)
2077 nextsym = sorted_syms[place];
2080 if (sym != NULL && bfd_asymbol_value (sym) > addr)
2081 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
2082 else if (nextsym == NULL)
2083 nextstop_offset = stop_offset;
2085 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
2087 if (nextstop_offset > stop_offset
2088 || nextstop_offset <= addr_offset)
2089 nextstop_offset = stop_offset;
2091 /* If a symbol is explicitly marked as being an object
2092 rather than a function, just dump the bytes without
2093 disassembling them. */
2096 || sym->section != section
2097 || bfd_asymbol_value (sym) > addr
2098 || ((sym->flags & BSF_OBJECT) == 0
2099 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
2101 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
2103 || (sym->flags & BSF_FUNCTION) != 0)
2108 disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
2109 addr_offset, nextstop_offset,
2110 rel_offset, &rel_pp, rel_ppend);
2112 addr_offset = nextstop_offset;
2118 if (rel_ppstart != NULL)
2122 /* Disassemble the contents of an object file. */
2125 disassemble_data (bfd *abfd)
2127 struct disassemble_info disasm_info;
2128 struct objdump_disasm_info aux;
2132 prev_functionname = NULL;
2134 prev_discriminator = 0;
2136 /* We make a copy of syms to sort. We don't want to sort syms
2137 because that will screw up the relocs. */
2138 sorted_symcount = symcount ? symcount : dynsymcount;
2139 sorted_syms = (asymbol **) xmalloc ((sorted_symcount + synthcount)
2140 * sizeof (asymbol *));
2141 memcpy (sorted_syms, symcount ? syms : dynsyms,
2142 sorted_symcount * sizeof (asymbol *));
2144 sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
2146 for (i = 0; i < synthcount; ++i)
2148 sorted_syms[sorted_symcount] = synthsyms + i;
2152 /* Sort the symbols into section and symbol order. */
2153 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
2155 init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
2157 disasm_info.application_data = (void *) &aux;
2159 aux.require_sec = FALSE;
2160 aux.dynrelbuf = NULL;
2161 aux.dynrelcount = 0;
2164 disasm_info.print_address_func = objdump_print_address;
2165 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
2167 if (machine != NULL)
2169 const bfd_arch_info_type *inf = bfd_scan_arch (machine);
2172 fatal (_("can't use supplied machine %s"), machine);
2174 abfd->arch_info = inf;
2177 if (endian != BFD_ENDIAN_UNKNOWN)
2179 struct bfd_target *xvec;
2181 xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
2182 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
2183 xvec->byteorder = endian;
2187 /* Use libopcodes to locate a suitable disassembler. */
2188 aux.disassemble_fn = disassembler (abfd);
2189 if (!aux.disassemble_fn)
2191 non_fatal (_("can't disassemble for architecture %s\n"),
2192 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
2197 disasm_info.flavour = bfd_get_flavour (abfd);
2198 disasm_info.arch = bfd_get_arch (abfd);
2199 disasm_info.mach = bfd_get_mach (abfd);
2200 disasm_info.disassembler_options = disassembler_options;
2201 disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
2202 disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
2203 disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
2204 disasm_info.disassembler_needs_relocs = FALSE;
2206 if (bfd_big_endian (abfd))
2207 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
2208 else if (bfd_little_endian (abfd))
2209 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
2211 /* ??? Aborting here seems too drastic. We could default to big or little
2213 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
2215 /* Allow the target to customize the info structure. */
2216 disassemble_init_for_target (& disasm_info);
2218 /* Pre-load the dynamic relocs if we are going
2219 to be dumping them along with the disassembly. */
2220 if (dump_dynamic_reloc_info)
2222 long relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2225 bfd_fatal (bfd_get_filename (abfd));
2229 aux.dynrelbuf = (arelent **) xmalloc (relsize);
2230 aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
2233 if (aux.dynrelcount < 0)
2234 bfd_fatal (bfd_get_filename (abfd));
2236 /* Sort the relocs by address. */
2237 qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
2241 disasm_info.symtab = sorted_syms;
2242 disasm_info.symtab_size = sorted_symcount;
2244 bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
2246 if (aux.dynrelbuf != NULL)
2247 free (aux.dynrelbuf);
2252 load_specific_debug_section (enum dwarf_section_display_enum debug,
2253 asection *sec, void *file)
2255 struct dwarf_section *section = &debug_displays [debug].section;
2256 bfd *abfd = (bfd *) file;
2259 /* If it is already loaded, do nothing. */
2260 if (section->start != NULL)
2263 section->address = 0;
2264 section->size = bfd_get_section_size (sec);
2265 section->start = NULL;
2266 ret = bfd_get_full_section_contents (abfd, sec, §ion->start);
2270 free_debug_section (debug);
2271 printf (_("\nCan't get contents for section '%s'.\n"),
2276 if (is_relocatable && debug_displays [debug].relocate)
2278 bfd_cache_section_contents (sec, section->start);
2280 ret = bfd_simple_get_relocated_section_contents (abfd,
2287 free_debug_section (debug);
2288 printf (_("\nCan't get contents for section '%s'.\n"),
2298 load_debug_section (enum dwarf_section_display_enum debug, void *file)
2300 struct dwarf_section *section = &debug_displays [debug].section;
2301 bfd *abfd = (bfd *) file;
2304 /* If it is already loaded, do nothing. */
2305 if (section->start != NULL)
2308 /* Locate the debug section. */
2309 sec = bfd_get_section_by_name (abfd, section->uncompressed_name);
2311 section->name = section->uncompressed_name;
2314 sec = bfd_get_section_by_name (abfd, section->compressed_name);
2316 section->name = section->compressed_name;
2321 return load_specific_debug_section (debug, sec, file);
2325 free_debug_section (enum dwarf_section_display_enum debug)
2327 struct dwarf_section *section = &debug_displays [debug].section;
2329 if (section->start == NULL)
2332 free ((char *) section->start);
2333 section->start = NULL;
2334 section->address = 0;
2339 dump_dwarf_section (bfd *abfd, asection *section,
2340 void *arg ATTRIBUTE_UNUSED)
2342 const char *name = bfd_get_section_name (abfd, section);
2346 if (CONST_STRNEQ (name, ".gnu.linkonce.wi."))
2347 match = ".debug_info";
2351 for (i = 0; i < max; i++)
2352 if ((strcmp (debug_displays [i].section.uncompressed_name, match) == 0
2353 || strcmp (debug_displays [i].section.compressed_name, match) == 0)
2354 && debug_displays [i].enabled != NULL
2355 && *debug_displays [i].enabled)
2357 struct dwarf_section *sec = &debug_displays [i].section;
2359 if (strcmp (sec->uncompressed_name, match) == 0)
2360 sec->name = sec->uncompressed_name;
2362 sec->name = sec->compressed_name;
2363 if (load_specific_debug_section ((enum dwarf_section_display_enum) i,
2366 debug_displays [i].display (sec, abfd);
2368 if (i != info && i != abbrev)
2369 free_debug_section ((enum dwarf_section_display_enum) i);
2375 /* Dump the dwarf debugging information. */
2378 dump_dwarf (bfd *abfd)
2380 is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2382 eh_addr_size = bfd_arch_bits_per_address (abfd) / 8;
2384 if (bfd_big_endian (abfd))
2385 byte_get = byte_get_big_endian;
2386 else if (bfd_little_endian (abfd))
2387 byte_get = byte_get_little_endian;
2391 switch (bfd_get_arch (abfd))
2394 switch (bfd_get_mach (abfd))
2396 case bfd_mach_x86_64:
2397 case bfd_mach_x86_64_intel_syntax:
2398 case bfd_mach_x86_64_nacl:
2399 case bfd_mach_x64_32:
2400 case bfd_mach_x64_32_intel_syntax:
2401 case bfd_mach_x64_32_nacl:
2402 init_dwarf_regnames_x86_64 ();
2406 init_dwarf_regnames_i386 ();
2415 bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
2417 free_debug_memory ();
2420 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
2421 it. Return NULL on failure. */
2424 read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
2430 stabsect = bfd_get_section_by_name (abfd, sect_name);
2431 if (stabsect == NULL)
2433 printf (_("No %s section present\n\n"), sect_name);
2437 size = bfd_section_size (abfd, stabsect);
2438 contents = (char *) xmalloc (size);
2440 if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
2442 non_fatal (_("reading %s section of %s failed: %s"),
2443 sect_name, bfd_get_filename (abfd),
2444 bfd_errmsg (bfd_get_error ()));
2455 /* Stabs entries use a 12 byte format:
2456 4 byte string table index
2458 1 byte stab other field
2459 2 byte stab desc field
2461 FIXME: This will have to change for a 64 bit object format. */
2463 #define STRDXOFF (0)
2465 #define OTHEROFF (5)
2468 #define STABSIZE (12)
2470 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
2471 using string table section STRSECT_NAME (in `strtab'). */
2474 print_section_stabs (bfd *abfd,
2475 const char *stabsect_name,
2476 unsigned *string_offset_ptr)
2479 unsigned file_string_table_offset = 0;
2480 unsigned next_file_string_table_offset = *string_offset_ptr;
2481 bfd_byte *stabp, *stabs_end;
2484 stabs_end = stabp + stab_size;
2486 printf (_("Contents of %s section:\n\n"), stabsect_name);
2487 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
2489 /* Loop through all symbols and print them.
2491 We start the index at -1 because there is a dummy symbol on
2492 the front of stabs-in-{coff,elf} sections that supplies sizes. */
2493 for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
2497 unsigned char type, other;
2498 unsigned short desc;
2501 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
2502 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
2503 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
2504 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
2505 value = bfd_h_get_32 (abfd, stabp + VALOFF);
2507 printf ("\n%-6d ", i);
2508 /* Either print the stab name, or, if unnamed, print its number
2509 again (makes consistent formatting for tools like awk). */
2510 name = bfd_get_stab_name (type);
2512 printf ("%-6s", name);
2513 else if (type == N_UNDF)
2516 printf ("%-6d", type);
2517 printf (" %-6d %-6d ", other, desc);
2518 bfd_printf_vma (abfd, value);
2519 printf (" %-6lu", strx);
2521 /* Symbols with type == 0 (N_UNDF) specify the length of the
2522 string table associated with this file. We use that info
2523 to know how to relocate the *next* file's string table indices. */
2526 file_string_table_offset = next_file_string_table_offset;
2527 next_file_string_table_offset += value;
2531 /* Using the (possibly updated) string table offset, print the
2532 string (if any) associated with this symbol. */
2533 if ((strx + file_string_table_offset) < stabstr_size)
2534 printf (" %s", &strtab[strx + file_string_table_offset]);
2540 *string_offset_ptr = next_file_string_table_offset;
2545 const char * section_name;
2546 const char * string_section_name;
2547 unsigned string_offset;
2552 find_stabs_section (bfd *abfd, asection *section, void *names)
2555 stab_section_names * sought = (stab_section_names *) names;
2557 /* Check for section names for which stabsect_name is a prefix, to
2558 handle .stab.N, etc. */
2559 len = strlen (sought->section_name);
2561 /* If the prefix matches, and the files section name ends with a
2562 nul or a digit, then we match. I.e., we want either an exact
2563 match or a section followed by a number. */
2564 if (strncmp (sought->section_name, section->name, len) == 0
2565 && (section->name[len] == 0
2566 || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
2569 strtab = read_section_stabs (abfd, sought->string_section_name,
2574 stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
2577 print_section_stabs (abfd, section->name, &sought->string_offset);
2583 dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name)
2585 stab_section_names s;
2587 s.section_name = stabsect_name;
2588 s.string_section_name = strsect_name;
2589 s.string_offset = 0;
2591 bfd_map_over_sections (abfd, find_stabs_section, & s);
2597 /* Dump the any sections containing stabs debugging information. */
2600 dump_stabs (bfd *abfd)
2602 dump_stabs_section (abfd, ".stab", ".stabstr");
2603 dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr");
2604 dump_stabs_section (abfd, ".stab.index", ".stab.indexstr");
2607 dump_stabs_section (abfd, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr");
2609 dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
2613 dump_bfd_header (bfd *abfd)
2617 printf (_("architecture: %s, "),
2618 bfd_printable_arch_mach (bfd_get_arch (abfd),
2619 bfd_get_mach (abfd)));
2620 printf (_("flags 0x%08x:\n"), abfd->flags & ~BFD_FLAGS_FOR_BFD_USE_MASK);
2622 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2623 PF (HAS_RELOC, "HAS_RELOC");
2624 PF (EXEC_P, "EXEC_P");
2625 PF (HAS_LINENO, "HAS_LINENO");
2626 PF (HAS_DEBUG, "HAS_DEBUG");
2627 PF (HAS_SYMS, "HAS_SYMS");
2628 PF (HAS_LOCALS, "HAS_LOCALS");
2629 PF (DYNAMIC, "DYNAMIC");
2630 PF (WP_TEXT, "WP_TEXT");
2631 PF (D_PAGED, "D_PAGED");
2632 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
2633 PF (HAS_LOAD_PAGE, "HAS_LOAD_PAGE");
2634 printf (_("\nstart address 0x"));
2635 bfd_printf_vma (abfd, abfd->start_address);
2641 dump_bfd_private_header (bfd *abfd)
2643 bfd_print_private_bfd_data (abfd, stdout);
2647 dump_target_specific (bfd *abfd)
2649 const struct objdump_private_desc * const *desc;
2650 struct objdump_private_option *opt;
2653 /* Find the desc. */
2654 for (desc = objdump_private_vectors; *desc != NULL; desc++)
2655 if ((*desc)->filter (abfd))
2660 non_fatal (_("option -P/--private not supported by this file"));
2664 /* Clear all options. */
2665 for (opt = (*desc)->options; opt->name; opt++)
2666 opt->selected = FALSE;
2668 /* Decode options. */
2669 b = dump_private_options;
2672 e = strchr (b, ',');
2677 for (opt = (*desc)->options; opt->name; opt++)
2678 if (strcmp (opt->name, b) == 0)
2680 opt->selected = TRUE;
2683 if (opt->name == NULL)
2684 non_fatal (_("target specific dump '%s' not supported"), b);
2695 (*desc)->dump (abfd);
2698 /* Display a section in hexadecimal format with associated characters.
2699 Each line prefixed by the zero padded address. */
2702 dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
2705 bfd_size_type datasize;
2706 bfd_size_type addr_offset;
2707 bfd_size_type start_offset;
2708 bfd_size_type stop_offset;
2709 unsigned int opb = bfd_octets_per_byte (abfd);
2710 /* Bytes per line. */
2711 const int onaline = 16;
2716 if ((section->flags & SEC_HAS_CONTENTS) == 0)
2719 if (! process_section_p (section))
2722 if ((datasize = bfd_section_size (abfd, section)) == 0)
2725 /* Compute the address range to display. */
2726 if (start_address == (bfd_vma) -1
2727 || start_address < section->vma)
2730 start_offset = start_address - section->vma;
2732 if (stop_address == (bfd_vma) -1)
2733 stop_offset = datasize / opb;
2736 if (stop_address < section->vma)
2739 stop_offset = stop_address - section->vma;
2741 if (stop_offset > datasize / opb)
2742 stop_offset = datasize / opb;
2745 if (start_offset >= stop_offset)
2748 printf (_("Contents of section %s:"), section->name);
2749 if (display_file_offsets)
2750 printf (_(" (Starting at file offset: 0x%lx)"),
2751 (unsigned long) (section->filepos + start_offset));
2754 if (!bfd_get_full_section_contents (abfd, section, &data))
2756 non_fatal (_("Reading section failed"));
2762 bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
2763 if (strlen (buf) >= sizeof (buf))
2767 while (buf[count] == '0' && buf[count+1] != '\0')
2769 count = strlen (buf) - count;
2773 bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
2774 if (strlen (buf) >= sizeof (buf))
2778 while (buf[count] == '0' && buf[count+1] != '\0')
2780 count = strlen (buf) - count;
2784 for (addr_offset = start_offset;
2785 addr_offset < stop_offset; addr_offset += onaline / opb)
2789 bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
2790 count = strlen (buf);
2791 if ((size_t) count >= sizeof (buf))
2795 while (count < width)
2800 fputs (buf + count - width, stdout);
2803 for (j = addr_offset * opb;
2804 j < addr_offset * opb + onaline; j++)
2806 if (j < stop_offset * opb)
2807 printf ("%02x", (unsigned) (data[j]));
2815 for (j = addr_offset * opb;
2816 j < addr_offset * opb + onaline; j++)
2818 if (j >= stop_offset * opb)
2821 printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
2828 /* Actually display the various requested regions. */
2831 dump_data (bfd *abfd)
2833 bfd_map_over_sections (abfd, dump_section, NULL);
2836 /* Should perhaps share code and display with nm? */
2839 dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
2848 max_count = dynsymcount;
2849 printf ("DYNAMIC SYMBOL TABLE:\n");
2854 max_count = symcount;
2855 printf ("SYMBOL TABLE:\n");
2859 printf (_("no symbols\n"));
2861 for (count = 0; count < max_count; count++)
2865 if (*current == NULL)
2866 printf (_("no information for symbol number %ld\n"), count);
2868 else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
2869 printf (_("could not determine the type of symbol number %ld\n"),
2872 else if (process_section_p ((* current)->section)
2873 && (dump_special_syms
2874 || !bfd_is_target_special_symbol (cur_bfd, *current)))
2876 const char *name = (*current)->name;
2878 if (do_demangle && name != NULL && *name != '\0')
2882 /* If we want to demangle the name, we demangle it
2883 here, and temporarily clobber it while calling
2884 bfd_print_symbol. FIXME: This is a gross hack. */
2885 alloc = bfd_demangle (cur_bfd, name, DMGL_ANSI | DMGL_PARAMS);
2887 (*current)->name = alloc;
2888 bfd_print_symbol (cur_bfd, stdout, *current,
2889 bfd_print_symbol_all);
2892 (*current)->name = name;
2897 bfd_print_symbol (cur_bfd, stdout, *current,
2898 bfd_print_symbol_all);
2908 dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount)
2911 char *last_filename, *last_functionname;
2912 unsigned int last_line;
2913 unsigned int last_discriminator;
2915 /* Get column headers lined up reasonably. */
2923 bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
2924 width = strlen (buf) - 7;
2926 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
2929 last_filename = NULL;
2930 last_functionname = NULL;
2932 last_discriminator = 0;
2934 for (p = relpp; relcount && *p != NULL; p++, relcount--)
2937 const char *filename, *functionname;
2938 unsigned int linenumber;
2939 unsigned int discriminator;
2940 const char *sym_name;
2941 const char *section_name;
2942 bfd_vma addend2 = 0;
2944 if (start_address != (bfd_vma) -1
2945 && q->address < start_address)
2947 if (stop_address != (bfd_vma) -1
2948 && q->address > stop_address)
2951 if (with_line_numbers
2953 && bfd_find_nearest_line_discriminator (abfd, sec, syms, q->address,
2954 &filename, &functionname,
2955 &linenumber, &discriminator))
2957 if (functionname != NULL
2958 && (last_functionname == NULL
2959 || strcmp (functionname, last_functionname) != 0))
2961 printf ("%s():\n", functionname);
2962 if (last_functionname != NULL)
2963 free (last_functionname);
2964 last_functionname = xstrdup (functionname);
2968 && (linenumber != last_line
2969 || (filename != NULL
2970 && last_filename != NULL
2971 && filename_cmp (filename, last_filename) != 0)
2972 || (discriminator != last_discriminator)))
2974 if (discriminator > 0)
2975 printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
2977 printf ("%s:%u (discriminator %u)\n", filename == NULL ? "???" : filename,
2978 linenumber, discriminator);
2979 last_line = linenumber;
2980 last_discriminator = discriminator;
2981 if (last_filename != NULL)
2982 free (last_filename);
2983 if (filename == NULL)
2984 last_filename = NULL;
2986 last_filename = xstrdup (filename);
2990 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
2992 sym_name = (*(q->sym_ptr_ptr))->name;
2993 section_name = (*(q->sym_ptr_ptr))->section->name;
2998 section_name = NULL;
3001 bfd_printf_vma (abfd, q->address);
3002 if (q->howto == NULL)
3003 printf (" *unknown* ");
3004 else if (q->howto->name)
3006 const char *name = q->howto->name;
3008 /* R_SPARC_OLO10 relocations contain two addends.
3009 But because 'arelent' lacks enough storage to
3010 store them both, the 64-bit ELF Sparc backend
3011 records this as two relocations. One R_SPARC_LO10
3012 and one R_SPARC_13, both pointing to the same
3013 address. This is merely so that we have some
3014 place to store both addend fields.
3016 Undo this transformation, otherwise the output
3017 will be confusing. */
3018 if (abfd->xvec->flavour == bfd_target_elf_flavour
3019 && elf_tdata(abfd)->elf_header->e_machine == EM_SPARCV9
3021 && !strcmp (q->howto->name, "R_SPARC_LO10"))
3023 arelent *q2 = *(p + 1);
3026 && q->address == q2->address
3027 && !strcmp (q2->howto->name, "R_SPARC_13"))
3029 name = "R_SPARC_OLO10";
3030 addend2 = q2->addend;
3034 printf (" %-16s ", name);
3037 printf (" %-16d ", q->howto->type);
3041 objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
3045 if (section_name == NULL)
3046 section_name = "*unknown*";
3047 printf ("[%s]", section_name);
3052 bfd_signed_vma addend = q->addend;
3060 bfd_printf_vma (abfd, addend);
3065 bfd_printf_vma (abfd, addend2);
3071 if (last_filename != NULL)
3072 free (last_filename);
3073 if (last_functionname != NULL)
3074 free (last_functionname);
3078 dump_relocs_in_section (bfd *abfd,
3080 void *dummy ATTRIBUTE_UNUSED)
3086 if ( bfd_is_abs_section (section)
3087 || bfd_is_und_section (section)
3088 || bfd_is_com_section (section)
3089 || (! process_section_p (section))
3090 || ((section->flags & SEC_RELOC) == 0))
3093 relsize = bfd_get_reloc_upper_bound (abfd, section);
3095 bfd_fatal (bfd_get_filename (abfd));
3097 printf ("RELOCATION RECORDS FOR [%s]:", section->name);
3101 printf (" (none)\n\n");
3105 relpp = (arelent **) xmalloc (relsize);
3106 relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
3109 bfd_fatal (bfd_get_filename (abfd));
3110 else if (relcount == 0)
3111 printf (" (none)\n\n");
3115 dump_reloc_set (abfd, section, relpp, relcount);
3122 dump_relocs (bfd *abfd)
3124 bfd_map_over_sections (abfd, dump_relocs_in_section, NULL);
3128 dump_dynamic_relocs (bfd *abfd)
3134 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
3136 bfd_fatal (bfd_get_filename (abfd));
3138 printf ("DYNAMIC RELOCATION RECORDS");
3141 printf (" (none)\n\n");
3144 relpp = (arelent **) xmalloc (relsize);
3145 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
3148 bfd_fatal (bfd_get_filename (abfd));
3149 else if (relcount == 0)
3150 printf (" (none)\n\n");
3154 dump_reloc_set (abfd, NULL, relpp, relcount);
3161 /* Creates a table of paths, to search for source files. */
3164 add_include_path (const char *path)
3168 include_path_count++;
3169 include_paths = (const char **)
3170 xrealloc (include_paths, include_path_count * sizeof (*include_paths));
3171 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3172 if (path[1] == ':' && path[2] == 0)
3173 path = concat (path, ".", (const char *) 0);
3175 include_paths[include_path_count - 1] = path;
3179 adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
3183 if ((section->flags & SEC_DEBUGGING) == 0)
3185 bfd_boolean *has_reloc_p = (bfd_boolean *) arg;
3186 section->vma += adjust_section_vma;
3188 section->lma += adjust_section_vma;
3192 /* Dump selected contents of ABFD. */
3195 dump_bfd (bfd *abfd)
3197 /* If we are adjusting section VMA's, change them all now. Changing
3198 the BFD information is a hack. However, we must do it, or
3199 bfd_find_nearest_line will not do the right thing. */
3200 if (adjust_section_vma != 0)
3202 bfd_boolean has_reloc = (abfd->flags & HAS_RELOC);
3203 bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
3206 if (! dump_debugging_tags && ! suppress_bfd_header)
3207 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
3210 print_arelt_descr (stdout, abfd, TRUE);
3211 if (dump_file_header)
3212 dump_bfd_header (abfd);
3213 if (dump_private_headers)
3214 dump_bfd_private_header (abfd);
3215 if (dump_private_options != NULL)
3216 dump_target_specific (abfd);
3217 if (! dump_debugging_tags && ! suppress_bfd_header)
3224 || dump_dwarf_section_info)
3225 syms = slurp_symtab (abfd);
3227 if (dump_section_headers)
3228 dump_headers (abfd);
3230 if (dump_dynamic_symtab || dump_dynamic_reloc_info
3231 || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
3232 dynsyms = slurp_dynamic_symtab (abfd);
3235 synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
3236 dynsymcount, dynsyms, &synthsyms);
3242 dump_symbols (abfd, FALSE);
3243 if (dump_dynamic_symtab)
3244 dump_symbols (abfd, TRUE);
3245 if (dump_dwarf_section_info)
3247 if (dump_stab_section_info)
3249 if (dump_reloc_info && ! disassemble)
3251 if (dump_dynamic_reloc_info && ! disassemble)
3252 dump_dynamic_relocs (abfd);
3253 if (dump_section_contents)
3256 disassemble_data (abfd);
3262 dhandle = read_debugging_info (abfd, syms, symcount, TRUE);
3263 if (dhandle != NULL)
3265 if (!print_debugging_info (stdout, dhandle, abfd, syms,
3267 dump_debugging_tags ? TRUE : FALSE))
3269 non_fatal (_("%s: printing debugging information failed"),
3270 bfd_get_filename (abfd));
3274 /* PR 6483: If there was no STABS or IEEE debug
3275 info in the file, try DWARF instead. */
3276 else if (! dump_dwarf_section_info)
3278 dwarf_select_sections_all ();
3307 display_object_bfd (bfd *abfd)
3311 if (bfd_check_format_matches (abfd, bfd_object, &matching))
3317 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3319 nonfatal (bfd_get_filename (abfd));
3320 list_matching_formats (matching);
3325 if (bfd_get_error () != bfd_error_file_not_recognized)
3327 nonfatal (bfd_get_filename (abfd));
3331 if (bfd_check_format_matches (abfd, bfd_core, &matching))
3337 nonfatal (bfd_get_filename (abfd));
3339 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
3341 list_matching_formats (matching);
3347 display_any_bfd (bfd *file, int level)
3349 /* Decompress sections unless dumping the section contents. */
3350 if (!dump_section_contents)
3351 file->flags |= BFD_DECOMPRESS;
3353 /* If the file is an archive, process all of its elements. */
3354 if (bfd_check_format (file, bfd_archive))
3357 bfd *last_arfile = NULL;
3360 printf (_("In archive %s:\n"), bfd_get_filename (file));
3362 printf (_("In nested archive %s:\n"), bfd_get_filename (file));
3366 bfd_set_error (bfd_error_no_error);
3368 arfile = bfd_openr_next_archived_file (file, arfile);
3371 if (bfd_get_error () != bfd_error_no_more_archived_files)
3372 nonfatal (bfd_get_filename (file));
3376 display_any_bfd (arfile, level + 1);
3378 if (last_arfile != NULL)
3379 bfd_close (last_arfile);
3380 last_arfile = arfile;
3383 if (last_arfile != NULL)
3384 bfd_close (last_arfile);
3387 display_object_bfd (file);
3391 display_file (char *filename, char *target)
3395 if (get_file_size (filename) < 1)
3401 file = bfd_openr (filename, target);
3404 nonfatal (filename);
3408 display_any_bfd (file, 0);
3414 main (int argc, char **argv)
3417 char *target = default_target;
3418 bfd_boolean seenflag = FALSE;
3420 #if defined (HAVE_SETLOCALE)
3421 #if defined (HAVE_LC_MESSAGES)
3422 setlocale (LC_MESSAGES, "");
3424 setlocale (LC_CTYPE, "");
3427 bindtextdomain (PACKAGE, LOCALEDIR);
3428 textdomain (PACKAGE);
3430 program_name = *argv;
3431 xmalloc_set_program_name (program_name);
3433 START_PROGRESS (program_name, 0);
3435 expandargv (&argc, &argv);
3438 set_default_bfd_target ();
3440 while ((c = getopt_long (argc, argv,
3441 "pP:ib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::",
3442 long_options, (int *) 0))
3448 break; /* We've been given a long option. */
3453 if (disassembler_options)
3454 /* Ignore potential memory leak for now. */
3455 disassembler_options = concat (disassembler_options, ",",
3456 optarg, (const char *) NULL);
3458 disassembler_options = optarg;
3464 display_file_offsets = TRUE;
3467 with_line_numbers = TRUE;
3476 enum demangling_styles style;
3478 style = cplus_demangle_name_to_style (optarg);
3479 if (style == unknown_demangling)
3480 fatal (_("unknown demangling style `%s'"),
3483 cplus_demangle_set_style (style);
3489 case OPTION_ADJUST_VMA:
3490 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
3492 case OPTION_START_ADDRESS:
3493 start_address = parse_vma (optarg, "--start-address");
3494 if ((stop_address != (bfd_vma) -1) && stop_address <= start_address)
3495 fatal (_("error: the start address should be before the end address"));
3497 case OPTION_STOP_ADDRESS:
3498 stop_address = parse_vma (optarg, "--stop-address");
3499 if ((start_address != (bfd_vma) -1) && stop_address <= start_address)
3500 fatal (_("error: the stop address should be after the start address"));
3504 prefix_length = strlen (prefix);
3505 /* Remove an unnecessary trailing '/' */
3506 while (IS_DIR_SEPARATOR (prefix[prefix_length - 1]))
3509 case OPTION_PREFIX_STRIP:
3510 prefix_strip = atoi (optarg);
3511 if (prefix_strip < 0)
3512 fatal (_("error: prefix strip must be non-negative"));
3514 case OPTION_INSN_WIDTH:
3515 insn_width = strtoul (optarg, NULL, 0);
3516 if (insn_width <= 0)
3517 fatal (_("error: instruction width must be positive"));
3520 if (strcmp (optarg, "B") == 0)
3521 endian = BFD_ENDIAN_BIG;
3522 else if (strcmp (optarg, "L") == 0)
3523 endian = BFD_ENDIAN_LITTLE;
3526 nonfatal (_("unrecognized -E option"));
3531 if (strncmp (optarg, "big", strlen (optarg)) == 0)
3532 endian = BFD_ENDIAN_BIG;
3533 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
3534 endian = BFD_ENDIAN_LITTLE;
3537 non_fatal (_("unrecognized --endian type `%s'"), optarg);
3544 dump_file_header = TRUE;
3548 formats_info = TRUE;
3552 add_include_path (optarg);
3555 dump_private_headers = TRUE;
3559 dump_private_options = optarg;
3563 dump_private_headers = TRUE;
3565 dump_reloc_info = TRUE;
3566 dump_file_header = TRUE;
3567 dump_ar_hdrs = TRUE;
3568 dump_section_headers = TRUE;
3576 dump_dynamic_symtab = TRUE;
3584 disassemble_zeroes = TRUE;
3588 disassemble_all = TRUE;
3593 with_source_code = TRUE;
3602 dump_debugging_tags = 1;
3607 dump_dwarf_section_info = TRUE;
3610 dwarf_select_sections_by_letters (optarg);
3612 dwarf_select_sections_all ();
3615 dump_dwarf_section_info = TRUE;
3618 dwarf_select_sections_by_names (optarg);
3620 dwarf_select_sections_all ();
3622 case OPTION_DWARF_DEPTH:
3625 dwarf_cutoff_level = strtoul (optarg, & cp, 0);
3628 case OPTION_DWARF_START:
3631 dwarf_start_die = strtoul (optarg, & cp, 0);
3632 suppress_bfd_header = 1;
3635 case OPTION_DWARF_CHECK:
3639 dump_stab_section_info = TRUE;
3643 dump_section_contents = TRUE;
3647 dump_reloc_info = TRUE;
3651 dump_dynamic_reloc_info = TRUE;
3655 dump_ar_hdrs = TRUE;
3659 dump_section_headers = TRUE;
3667 show_version = TRUE;
3677 print_version ("objdump");
3683 exit_status = display_info ();
3687 display_file ("a.out", target);
3689 for (; optind < argc;)
3690 display_file (argv[optind++], target);
3695 END_PROGRESS (program_name);