1 /* objdump.c -- dump information about an object file.
2 Copyright (C) 1990-2017 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
24 Objdump displays information about one or more object files, either on
25 their own, or inside libraries. It is commonly used as a disassembler,
26 but it can also display information about file headers, symbol tables,
27 relocations, debugging directives and more.
29 The flow of execution is as follows:
31 1. Command line arguments are checked for control switches and the
32 information to be displayed is selected.
34 2. Any remaining arguments are assumed to be object files, and they are
35 processed in order by display_bfd(). If the file is an archive each
36 of its elements is processed in turn.
38 3. The file's target architecture and binary file format are determined
39 by bfd_check_format(). If they are recognised, then dump_bfd() is
42 4. dump_bfd() in turn calls separate functions to display the requested
43 item(s) of information(s). For example disassemble_data() is called if
44 a disassembly has been requested.
46 When disassembling the code loops through blocks of instructions bounded
47 by symbols, calling disassemble_bytes() on each block. The actual
48 disassembling is done by the libopcodes library, via a function pointer
49 supplied by the disassembler() function. */
60 #include "safe-ctype.h"
62 #include "libiberty.h"
64 #include "filenames.h"
73 /* Internal headers for the ELF .stab-dump code - sorry. */
74 #define BYTES_IN_WORD 32
75 #include "aout/aout64.h"
78 static int exit_status
= 0;
80 static char *default_target
= NULL
; /* Default at runtime. */
82 /* The following variables are set based on arguments passed on the
84 static int show_version
= 0; /* Show the version number. */
85 static int dump_section_contents
; /* -s */
86 static int dump_section_headers
; /* -h */
87 static bfd_boolean dump_file_header
; /* -f */
88 static int dump_symtab
; /* -t */
89 static int dump_dynamic_symtab
; /* -T */
90 static int dump_reloc_info
; /* -r */
91 static int dump_dynamic_reloc_info
; /* -R */
92 static int dump_ar_hdrs
; /* -a */
93 static int dump_private_headers
; /* -p */
94 static char *dump_private_options
; /* -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 suppress_bfd_header
;
113 static int dump_special_syms
= 0; /* --special-syms */
114 static bfd_vma adjust_section_vma
= 0; /* --adjust-vma */
115 static int file_start_context
= 0; /* --file-start-context */
116 static bfd_boolean display_file_offsets
;/* -F */
117 static const char *prefix
; /* --prefix */
118 static int prefix_strip
; /* --prefix-strip */
119 static size_t prefix_length
;
120 static bfd_boolean unwind_inlines
; /* --inlines. */
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
196 static void usage (FILE *, int) ATTRIBUTE_NORETURN
;
198 usage (FILE *stream
, int status
)
200 fprintf (stream
, _("Usage: %s <option(s)> <file(s)>\n"), program_name
);
201 fprintf (stream
, _(" Display information from object <file(s)>.\n"));
202 fprintf (stream
, _(" At least one of the following switches must be given:\n"));
203 fprintf (stream
, _("\
204 -a, --archive-headers Display archive header information\n\
205 -f, --file-headers Display the contents of the overall file header\n\
206 -p, --private-headers Display object format specific file header contents\n\
207 -P, --private=OPT,OPT... Display object format specific contents\n\
208 -h, --[section-]headers Display the contents of the section headers\n\
209 -x, --all-headers Display the contents of all headers\n\
210 -d, --disassemble Display assembler contents of executable sections\n\
211 -D, --disassemble-all Display assembler contents of all sections\n\
212 -S, --source Intermix source code with disassembly\n\
213 -s, --full-contents Display the full contents of all sections requested\n\
214 -g, --debugging Display debug information in object file\n\
215 -e, --debugging-tags Display debug information using ctags style\n\
216 -G, --stabs Display (in raw form) any STABS info in the file\n\
217 -W[lLiaprmfFsoRt] or\n\
218 --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,\n\
219 =frames-interp,=str,=loc,=Ranges,=pubtypes,\n\
220 =gdb_index,=trace_info,=trace_abbrev,=trace_aranges,\n\
222 Display DWARF info in the file\n\
223 -t, --syms Display the contents of the symbol table(s)\n\
224 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
225 -r, --reloc Display the relocation entries in the file\n\
226 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
227 @<file> Read options from <file>\n\
228 -v, --version Display this program's version number\n\
229 -i, --info List object formats and architectures supported\n\
230 -H, --help Display this information\n\
234 const struct objdump_private_desc
* const *desc
;
236 fprintf (stream
, _("\n The following switches are optional:\n"));
237 fprintf (stream
, _("\
238 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
239 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
240 -j, --section=NAME Only display information for section NAME\n\
241 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
242 -EB --endian=big Assume big endian format when disassembling\n\
243 -EL --endian=little Assume little endian format when disassembling\n\
244 --file-start-context Include context from start of file (with -S)\n\
245 -I, --include=DIR Add DIR to search list for source files\n\
246 -l, --line-numbers Include line numbers and filenames in output\n\
247 -F, --file-offsets Include file offsets when displaying information\n\
248 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
249 The STYLE, if specified, can be `auto', `gnu',\n\
250 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
252 -w, --wide Format output for more than 80 columns\n\
253 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
254 --start-address=ADDR Only process data whose address is >= ADDR\n\
255 --stop-address=ADDR Only process data whose address is <= ADDR\n\
256 --prefix-addresses Print complete address alongside disassembly\n\
257 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
258 --insn-width=WIDTH Display WIDTH bytes on a single line for -d\n\
259 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
260 --special-syms Include special symbols in symbol dumps\n\
261 --inlines Print all inlines for source line (with -l)\n\
262 --prefix=PREFIX Add PREFIX to absolute paths for -S\n\
263 --prefix-strip=LEVEL Strip initial directory names for -S\n"));
264 fprintf (stream
, _("\
265 --dwarf-depth=N Do not display DIEs at depth N or greater\n\
266 --dwarf-start=N Display DIEs starting with N, at the same depth\n\
268 --dwarf-check Make additional dwarf internal consistency checks.\
270 list_supported_targets (program_name
, stream
);
271 list_supported_architectures (program_name
, stream
);
273 disassembler_usage (stream
);
275 if (objdump_private_vectors
[0] != NULL
)
278 _("\nOptions supported for -P/--private switch:\n"));
279 for (desc
= objdump_private_vectors
; *desc
!= NULL
; desc
++)
280 (*desc
)->help (stream
);
283 if (REPORT_BUGS_TO
[0] && status
== 0)
284 fprintf (stream
, _("Report bugs to %s.\n"), REPORT_BUGS_TO
);
288 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
292 OPTION_START_ADDRESS
,
305 static struct option long_options
[]=
307 {"adjust-vma", required_argument
, NULL
, OPTION_ADJUST_VMA
},
308 {"all-headers", no_argument
, NULL
, 'x'},
309 {"private-headers", no_argument
, NULL
, 'p'},
310 {"private", required_argument
, NULL
, 'P'},
311 {"architecture", required_argument
, NULL
, 'm'},
312 {"archive-headers", no_argument
, NULL
, 'a'},
313 {"debugging", no_argument
, NULL
, 'g'},
314 {"debugging-tags", no_argument
, NULL
, 'e'},
315 {"demangle", optional_argument
, NULL
, 'C'},
316 {"disassemble", no_argument
, NULL
, 'd'},
317 {"disassemble-all", no_argument
, NULL
, 'D'},
318 {"disassembler-options", required_argument
, NULL
, 'M'},
319 {"disassemble-zeroes", no_argument
, NULL
, 'z'},
320 {"dynamic-reloc", no_argument
, NULL
, 'R'},
321 {"dynamic-syms", no_argument
, NULL
, 'T'},
322 {"endian", required_argument
, NULL
, OPTION_ENDIAN
},
323 {"file-headers", no_argument
, NULL
, 'f'},
324 {"file-offsets", no_argument
, NULL
, 'F'},
325 {"file-start-context", no_argument
, &file_start_context
, 1},
326 {"full-contents", no_argument
, NULL
, 's'},
327 {"headers", no_argument
, NULL
, 'h'},
328 {"help", no_argument
, NULL
, 'H'},
329 {"info", no_argument
, NULL
, 'i'},
330 {"line-numbers", no_argument
, NULL
, 'l'},
331 {"no-show-raw-insn", no_argument
, &show_raw_insn
, -1},
332 {"prefix-addresses", no_argument
, &prefix_addresses
, 1},
333 {"reloc", no_argument
, NULL
, 'r'},
334 {"section", required_argument
, NULL
, 'j'},
335 {"section-headers", no_argument
, NULL
, 'h'},
336 {"show-raw-insn", no_argument
, &show_raw_insn
, 1},
337 {"source", no_argument
, NULL
, 'S'},
338 {"special-syms", no_argument
, &dump_special_syms
, 1},
339 {"include", required_argument
, NULL
, 'I'},
340 {"dwarf", optional_argument
, NULL
, OPTION_DWARF
},
341 {"stabs", no_argument
, NULL
, 'G'},
342 {"start-address", required_argument
, NULL
, OPTION_START_ADDRESS
},
343 {"stop-address", required_argument
, NULL
, OPTION_STOP_ADDRESS
},
344 {"syms", no_argument
, NULL
, 't'},
345 {"target", required_argument
, NULL
, 'b'},
346 {"version", no_argument
, NULL
, 'V'},
347 {"wide", no_argument
, NULL
, 'w'},
348 {"prefix", required_argument
, NULL
, OPTION_PREFIX
},
349 {"prefix-strip", required_argument
, NULL
, OPTION_PREFIX_STRIP
},
350 {"insn-width", required_argument
, NULL
, OPTION_INSN_WIDTH
},
351 {"dwarf-depth", required_argument
, 0, OPTION_DWARF_DEPTH
},
352 {"dwarf-start", required_argument
, 0, OPTION_DWARF_START
},
353 {"dwarf-check", no_argument
, 0, OPTION_DWARF_CHECK
},
354 {"inlines", no_argument
, 0, OPTION_INLINES
},
355 {0, no_argument
, 0, 0}
359 nonfatal (const char *msg
)
365 /* Returns TRUE if the specified section should be dumped. */
368 process_section_p (asection
* section
)
372 if (only_list
== NULL
)
375 for (only
= only_list
; only
; only
= only
->next
)
376 if (strcmp (only
->name
, section
->name
) == 0)
385 /* Add an entry to the 'only' list. */
388 add_only (char * name
)
392 /* First check to make sure that we do not
393 already have an entry for this name. */
394 for (only
= only_list
; only
; only
= only
->next
)
395 if (strcmp (only
->name
, name
) == 0)
398 only
= xmalloc (sizeof * only
);
401 only
->next
= only_list
;
405 /* Release the memory used by the 'only' list.
406 PR 11225: Issue a warning message for unseen sections.
407 Only do this if none of the sections were seen. This is mainly to support
408 tools like the GAS testsuite where an object file is dumped with a list of
409 generic section names known to be present in a range of different file
413 free_only_list (void)
415 bfd_boolean at_least_one_seen
= FALSE
;
419 if (only_list
== NULL
)
422 for (only
= only_list
; only
; only
= only
->next
)
425 at_least_one_seen
= TRUE
;
429 for (only
= only_list
; only
; only
= next
)
431 if (! at_least_one_seen
)
433 non_fatal (_("section '%s' mentioned in a -j option, "
434 "but not found in any input file"),
445 dump_section_header (bfd
*abfd
, asection
*section
, void *data
)
448 unsigned int opb
= bfd_octets_per_byte (abfd
);
449 int longest_section_name
= *((int *) data
);
451 /* Ignore linker created section. See elfNN_ia64_object_p in
453 if (section
->flags
& SEC_LINKER_CREATED
)
456 /* PR 10413: Skip sections that we are ignoring. */
457 if (! process_section_p (section
))
460 printf ("%3d %-*s %08lx ", section
->index
, longest_section_name
,
461 bfd_get_section_name (abfd
, section
),
462 (unsigned long) bfd_section_size (abfd
, section
) / opb
);
463 bfd_printf_vma (abfd
, bfd_get_section_vma (abfd
, section
));
465 bfd_printf_vma (abfd
, section
->lma
);
466 printf (" %08lx 2**%u", (unsigned long) section
->filepos
,
467 bfd_get_section_alignment (abfd
, section
));
473 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
475 PF (SEC_HAS_CONTENTS
, "CONTENTS");
476 PF (SEC_ALLOC
, "ALLOC");
477 PF (SEC_CONSTRUCTOR
, "CONSTRUCTOR");
478 PF (SEC_LOAD
, "LOAD");
479 PF (SEC_RELOC
, "RELOC");
480 PF (SEC_READONLY
, "READONLY");
481 PF (SEC_CODE
, "CODE");
482 PF (SEC_DATA
, "DATA");
484 PF (SEC_DEBUGGING
, "DEBUGGING");
485 PF (SEC_NEVER_LOAD
, "NEVER_LOAD");
486 PF (SEC_EXCLUDE
, "EXCLUDE");
487 PF (SEC_SORT_ENTRIES
, "SORT_ENTRIES");
488 if (bfd_get_arch (abfd
) == bfd_arch_tic54x
)
490 PF (SEC_TIC54X_BLOCK
, "BLOCK");
491 PF (SEC_TIC54X_CLINK
, "CLINK");
493 PF (SEC_SMALL_DATA
, "SMALL_DATA");
494 if (bfd_get_flavour (abfd
) == bfd_target_coff_flavour
)
496 PF (SEC_COFF_SHARED
, "SHARED");
497 PF (SEC_COFF_NOREAD
, "NOREAD");
499 else if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
500 PF (SEC_ELF_PURECODE
, "PURECODE");
501 PF (SEC_THREAD_LOCAL
, "THREAD_LOCAL");
502 PF (SEC_GROUP
, "GROUP");
503 if (bfd_get_arch (abfd
) == bfd_arch_mep
)
505 PF (SEC_MEP_VLIW
, "VLIW");
508 if ((section
->flags
& SEC_LINK_ONCE
) != 0)
511 struct coff_comdat_info
*comdat
;
513 switch (section
->flags
& SEC_LINK_DUPLICATES
)
517 case SEC_LINK_DUPLICATES_DISCARD
:
518 ls
= "LINK_ONCE_DISCARD";
520 case SEC_LINK_DUPLICATES_ONE_ONLY
:
521 ls
= "LINK_ONCE_ONE_ONLY";
523 case SEC_LINK_DUPLICATES_SAME_SIZE
:
524 ls
= "LINK_ONCE_SAME_SIZE";
526 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
527 ls
= "LINK_ONCE_SAME_CONTENTS";
530 printf ("%s%s", comma
, ls
);
532 comdat
= bfd_coff_get_comdat_section (abfd
, section
);
534 printf (" (COMDAT %s %ld)", comdat
->name
, comdat
->symbol
);
543 /* Called on each SECTION in ABFD, update the int variable pointed to by
544 DATA which contains the string length of the longest section name. */
547 find_longest_section_name (bfd
*abfd
, asection
*section
, void *data
)
549 int *longest_so_far
= (int *) data
;
553 /* Ignore linker created section. */
554 if (section
->flags
& SEC_LINKER_CREATED
)
557 /* Skip sections that we are ignoring. */
558 if (! process_section_p (section
))
561 name
= bfd_get_section_name (abfd
, section
);
562 len
= (int) strlen (name
);
563 if (len
> *longest_so_far
)
564 *longest_so_far
= len
;
568 dump_headers (bfd
*abfd
)
570 /* The default width of 13 is just an arbitrary choice. */
571 int max_section_name_length
= 13;
577 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
578 if (bfd_get_arch_size (abfd
) == 32)
584 printf (_("Sections:\n"));
587 bfd_map_over_sections (abfd
, find_longest_section_name
,
588 &max_section_name_length
);
590 printf (_("Idx %-*s Size %-*s%-*sFile off Algn"),
591 max_section_name_length
, "Name",
592 bfd_vma_width
, "VMA",
593 bfd_vma_width
, "LMA");
596 printf (_(" Flags"));
599 bfd_map_over_sections (abfd
, dump_section_header
,
600 &max_section_name_length
);
604 slurp_symtab (bfd
*abfd
)
609 if (!(bfd_get_file_flags (abfd
) & HAS_SYMS
))
615 storage
= bfd_get_symtab_upper_bound (abfd
);
618 non_fatal (_("failed to read symbol table from: %s"), bfd_get_filename (abfd
));
619 bfd_fatal (_("error message was"));
622 sy
= (asymbol
**) xmalloc (storage
);
624 symcount
= bfd_canonicalize_symtab (abfd
, sy
);
626 bfd_fatal (bfd_get_filename (abfd
));
630 /* Read in the dynamic symbols. */
633 slurp_dynamic_symtab (bfd
*abfd
)
638 storage
= bfd_get_dynamic_symtab_upper_bound (abfd
);
641 if (!(bfd_get_file_flags (abfd
) & DYNAMIC
))
643 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd
));
649 bfd_fatal (bfd_get_filename (abfd
));
652 sy
= (asymbol
**) xmalloc (storage
);
654 dynsymcount
= bfd_canonicalize_dynamic_symtab (abfd
, sy
);
656 bfd_fatal (bfd_get_filename (abfd
));
660 /* Some symbol names are significant and should be kept in the
661 table of sorted symbol names, even if they are marked as
662 debugging/section symbols. */
665 is_significant_symbol_name (const char * name
)
667 return strcmp (name
, ".plt") == 0
668 || strcmp (name
, ".got") == 0
669 || strcmp (name
, ".plt.got") == 0;
672 /* Filter out (in place) symbols that are useless for disassembly.
673 COUNT is the number of elements in SYMBOLS.
674 Return the number of useful symbols. */
677 remove_useless_symbols (asymbol
**symbols
, long count
)
679 asymbol
**in_ptr
= symbols
, **out_ptr
= symbols
;
683 asymbol
*sym
= *in_ptr
++;
685 if (sym
->name
== NULL
|| sym
->name
[0] == '\0')
687 if ((sym
->flags
& (BSF_DEBUGGING
| BSF_SECTION_SYM
))
688 && ! is_significant_symbol_name (sym
->name
))
690 if (bfd_is_und_section (sym
->section
)
691 || bfd_is_com_section (sym
->section
))
696 return out_ptr
- symbols
;
699 /* Sort symbols into value order. */
702 compare_symbols (const void *ap
, const void *bp
)
704 const asymbol
*a
= * (const asymbol
**) ap
;
705 const asymbol
*b
= * (const asymbol
**) bp
;
715 if (bfd_asymbol_value (a
) > bfd_asymbol_value (b
))
717 else if (bfd_asymbol_value (a
) < bfd_asymbol_value (b
))
720 if (a
->section
> b
->section
)
722 else if (a
->section
< b
->section
)
725 an
= bfd_asymbol_name (a
);
726 bn
= bfd_asymbol_name (b
);
730 /* The symbols gnu_compiled and gcc2_compiled convey no real
731 information, so put them after other symbols with the same value. */
732 af
= (strstr (an
, "gnu_compiled") != NULL
733 || strstr (an
, "gcc2_compiled") != NULL
);
734 bf
= (strstr (bn
, "gnu_compiled") != NULL
735 || strstr (bn
, "gcc2_compiled") != NULL
);
742 /* We use a heuristic for the file name, to try to sort it after
743 more useful symbols. It may not work on non Unix systems, but it
744 doesn't really matter; the only difference is precisely which
745 symbol names get printed. */
747 #define file_symbol(s, sn, snl) \
748 (((s)->flags & BSF_FILE) != 0 \
749 || ((sn)[(snl) - 2] == '.' \
750 && ((sn)[(snl) - 1] == 'o' \
751 || (sn)[(snl) - 1] == 'a')))
753 af
= file_symbol (a
, an
, anl
);
754 bf
= file_symbol (b
, bn
, bnl
);
761 /* Try to sort global symbols before local symbols before function
762 symbols before debugging symbols. */
767 if ((aflags
& BSF_DEBUGGING
) != (bflags
& BSF_DEBUGGING
))
769 if ((aflags
& BSF_DEBUGGING
) != 0)
774 if ((aflags
& BSF_FUNCTION
) != (bflags
& BSF_FUNCTION
))
776 if ((aflags
& BSF_FUNCTION
) != 0)
781 if ((aflags
& BSF_LOCAL
) != (bflags
& BSF_LOCAL
))
783 if ((aflags
& BSF_LOCAL
) != 0)
788 if ((aflags
& BSF_GLOBAL
) != (bflags
& BSF_GLOBAL
))
790 if ((aflags
& BSF_GLOBAL
) != 0)
796 if (bfd_get_flavour (bfd_asymbol_bfd (a
)) == bfd_target_elf_flavour
797 && bfd_get_flavour (bfd_asymbol_bfd (b
)) == bfd_target_elf_flavour
)
802 if ((a
->flags
& BSF_SYNTHETIC
) == 0)
803 asz
= ((elf_symbol_type
*) a
)->internal_elf_sym
.st_size
;
805 if ((b
->flags
& BSF_SYNTHETIC
) == 0)
806 bsz
= ((elf_symbol_type
*) b
)->internal_elf_sym
.st_size
;
808 return asz
> bsz
? -1 : 1;
811 /* Symbols that start with '.' might be section names, so sort them
812 after symbols that don't start with '.'. */
813 if (an
[0] == '.' && bn
[0] != '.')
815 if (an
[0] != '.' && bn
[0] == '.')
818 /* Finally, if we can't distinguish them in any other way, try to
819 get consistent results by sorting the symbols by name. */
820 return strcmp (an
, bn
);
823 /* Sort relocs into address order. */
826 compare_relocs (const void *ap
, const void *bp
)
828 const arelent
*a
= * (const arelent
**) ap
;
829 const arelent
*b
= * (const arelent
**) bp
;
831 if (a
->address
> b
->address
)
833 else if (a
->address
< b
->address
)
836 /* So that associated relocations tied to the same address show up
837 in the correct order, we don't do any further sorting. */
846 /* Print an address (VMA) to the output stream in INFO.
847 If SKIP_ZEROES is TRUE, omit leading zeroes. */
850 objdump_print_value (bfd_vma vma
, struct disassemble_info
*inf
,
851 bfd_boolean skip_zeroes
)
855 struct objdump_disasm_info
*aux
;
857 aux
= (struct objdump_disasm_info
*) inf
->application_data
;
858 bfd_sprintf_vma (aux
->abfd
, buf
, vma
);
863 for (p
= buf
; *p
== '0'; ++p
)
868 (*inf
->fprintf_func
) (inf
->stream
, "%s", p
);
871 /* Print the name of a symbol. */
874 objdump_print_symname (bfd
*abfd
, struct disassemble_info
*inf
,
878 const char *name
, *version_string
= NULL
;
879 bfd_boolean hidden
= FALSE
;
882 name
= bfd_asymbol_name (sym
);
883 if (do_demangle
&& name
[0] != '\0')
885 /* Demangle the name. */
886 alloc
= bfd_demangle (abfd
, name
, DMGL_ANSI
| DMGL_PARAMS
);
891 if ((sym
->flags
& BSF_SYNTHETIC
) == 0)
892 version_string
= bfd_get_symbol_version_string (abfd
, sym
, &hidden
);
894 if (bfd_is_und_section (bfd_get_section (sym
)))
899 (*inf
->fprintf_func
) (inf
->stream
, "%s", name
);
900 if (version_string
&& *version_string
!= '\0')
901 (*inf
->fprintf_func
) (inf
->stream
, hidden
? "@%s" : "@@%s",
907 if (version_string
&& *version_string
!= '\0')
908 printf (hidden
? "@%s" : "@@%s", version_string
);
915 /* Locate a symbol given a bfd and a section (from INFO->application_data),
916 and a VMA. If INFO->application_data->require_sec is TRUE, then always
917 require the symbol to be in the section. Returns NULL if there is no
918 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
919 of the symbol in sorted_syms. */
922 find_symbol_for_address (bfd_vma vma
,
923 struct disassemble_info
*inf
,
926 /* @@ Would it speed things up to cache the last two symbols returned,
927 and maybe their address ranges? For many processors, only one memory
928 operand can be present at a time, so the 2-entry cache wouldn't be
929 constantly churned by code doing heavy memory accesses. */
931 /* Indices in `sorted_syms'. */
933 long max_count
= sorted_symcount
;
935 struct objdump_disasm_info
*aux
;
939 bfd_boolean want_section
;
941 if (sorted_symcount
< 1)
944 aux
= (struct objdump_disasm_info
*) inf
->application_data
;
947 opb
= inf
->octets_per_byte
;
949 /* Perform a binary search looking for the closest symbol to the
950 required value. We are searching the range (min, max_count]. */
951 while (min
+ 1 < max_count
)
955 thisplace
= (max_count
+ min
) / 2;
956 sym
= sorted_syms
[thisplace
];
958 if (bfd_asymbol_value (sym
) > vma
)
959 max_count
= thisplace
;
960 else if (bfd_asymbol_value (sym
) < vma
)
969 /* The symbol we want is now in min, the low end of the range we
970 were searching. If there are several symbols with the same
971 value, we want the first (non-section/non-debugging) one. */
974 && (bfd_asymbol_value (sorted_syms
[thisplace
])
975 == bfd_asymbol_value (sorted_syms
[thisplace
- 1]))
976 && ((sorted_syms
[thisplace
- 1]->flags
977 & (BSF_SECTION_SYM
| BSF_DEBUGGING
)) == 0)
981 /* Prefer a symbol in the current section if we have multple symbols
982 with the same value, as can occur with overlays or zero size
985 while (min
< max_count
986 && (bfd_asymbol_value (sorted_syms
[min
])
987 == bfd_asymbol_value (sorted_syms
[thisplace
])))
989 if (sorted_syms
[min
]->section
== sec
990 && inf
->symbol_is_valid (sorted_syms
[min
], inf
))
997 return sorted_syms
[thisplace
];
1002 /* If the file is relocatable, and the symbol could be from this
1003 section, prefer a symbol from this section over symbols from
1004 others, even if the other symbol's value might be closer.
1006 Note that this may be wrong for some symbol references if the
1007 sections have overlapping memory ranges, but in that case there's
1008 no way to tell what's desired without looking at the relocation
1011 Also give the target a chance to reject symbols. */
1012 want_section
= (aux
->require_sec
1013 || ((abfd
->flags
& HAS_RELOC
) != 0
1014 && vma
>= bfd_get_section_vma (abfd
, sec
)
1015 && vma
< (bfd_get_section_vma (abfd
, sec
)
1016 + bfd_section_size (abfd
, sec
) / opb
)));
1017 if ((sorted_syms
[thisplace
]->section
!= sec
&& want_section
)
1018 || ! inf
->symbol_is_valid (sorted_syms
[thisplace
], inf
))
1021 long newplace
= sorted_symcount
;
1023 for (i
= min
- 1; i
>= 0; i
--)
1025 if ((sorted_syms
[i
]->section
== sec
|| !want_section
)
1026 && inf
->symbol_is_valid (sorted_syms
[i
], inf
))
1028 if (newplace
== sorted_symcount
)
1031 if (bfd_asymbol_value (sorted_syms
[i
])
1032 != bfd_asymbol_value (sorted_syms
[newplace
]))
1035 /* Remember this symbol and keep searching until we reach
1036 an earlier address. */
1041 if (newplace
!= sorted_symcount
)
1042 thisplace
= newplace
;
1045 /* We didn't find a good symbol with a smaller value.
1046 Look for one with a larger value. */
1047 for (i
= thisplace
+ 1; i
< sorted_symcount
; i
++)
1049 if ((sorted_syms
[i
]->section
== sec
|| !want_section
)
1050 && inf
->symbol_is_valid (sorted_syms
[i
], inf
))
1058 if ((sorted_syms
[thisplace
]->section
!= sec
&& want_section
)
1059 || ! inf
->symbol_is_valid (sorted_syms
[thisplace
], inf
))
1060 /* There is no suitable symbol. */
1064 /* If we have not found an exact match for the specified address
1065 and we have dynamic relocations available, then we can produce
1066 a better result by matching a relocation to the address and
1067 using the symbol associated with that relocation. */
1069 && aux
->dynrelbuf
!= NULL
1070 && sorted_syms
[thisplace
]->value
!= vma
1071 /* If we have matched a synthetic symbol, then stick with that. */
1072 && (sorted_syms
[thisplace
]->flags
& BSF_SYNTHETIC
) == 0)
1077 for (rel_count
= aux
->dynrelcount
, rel_pp
= aux
->dynrelbuf
;
1080 arelent
* rel
= rel_pp
[rel_count
];
1082 if (rel
->address
== vma
1083 && rel
->sym_ptr_ptr
!= NULL
1084 /* Absolute relocations do not provide a more helpful symbolic address. */
1085 && ! bfd_is_abs_section ((* rel
->sym_ptr_ptr
)->section
))
1088 * place
= thisplace
;
1089 return * rel
->sym_ptr_ptr
;
1092 /* We are scanning backwards, so if we go below the target address
1094 if (rel_pp
[rel_count
]->address
< vma
)
1102 return sorted_syms
[thisplace
];
1105 /* Print an address and the offset to the nearest symbol. */
1108 objdump_print_addr_with_sym (bfd
*abfd
, asection
*sec
, asymbol
*sym
,
1109 bfd_vma vma
, struct disassemble_info
*inf
,
1110 bfd_boolean skip_zeroes
)
1112 objdump_print_value (vma
, inf
, skip_zeroes
);
1118 (*inf
->fprintf_func
) (inf
->stream
, " <%s",
1119 bfd_get_section_name (abfd
, sec
));
1120 secaddr
= bfd_get_section_vma (abfd
, sec
);
1123 (*inf
->fprintf_func
) (inf
->stream
, "-0x");
1124 objdump_print_value (secaddr
- vma
, inf
, TRUE
);
1126 else if (vma
> secaddr
)
1128 (*inf
->fprintf_func
) (inf
->stream
, "+0x");
1129 objdump_print_value (vma
- secaddr
, inf
, TRUE
);
1131 (*inf
->fprintf_func
) (inf
->stream
, ">");
1135 (*inf
->fprintf_func
) (inf
->stream
, " <");
1137 objdump_print_symname (abfd
, inf
, sym
);
1139 if (bfd_asymbol_value (sym
) == vma
)
1141 /* Undefined symbols in an executables and dynamic objects do not have
1142 a value associated with them, so it does not make sense to display
1143 an offset relative to them. Normally we would not be provided with
1144 this kind of symbol, but the target backend might choose to do so,
1145 and the code in find_symbol_for_address might return an as yet
1146 unresolved symbol associated with a dynamic reloc. */
1147 else if ((bfd_get_file_flags (abfd
) & (EXEC_P
| DYNAMIC
))
1148 && bfd_is_und_section (sym
->section
))
1150 else if (bfd_asymbol_value (sym
) > vma
)
1152 (*inf
->fprintf_func
) (inf
->stream
, "-0x");
1153 objdump_print_value (bfd_asymbol_value (sym
) - vma
, inf
, TRUE
);
1155 else if (vma
> bfd_asymbol_value (sym
))
1157 (*inf
->fprintf_func
) (inf
->stream
, "+0x");
1158 objdump_print_value (vma
- bfd_asymbol_value (sym
), inf
, TRUE
);
1161 (*inf
->fprintf_func
) (inf
->stream
, ">");
1164 if (display_file_offsets
)
1165 inf
->fprintf_func (inf
->stream
, _(" (File Offset: 0x%lx)"),
1166 (long int)(sec
->filepos
+ (vma
- sec
->vma
)));
1169 /* Print an address (VMA), symbolically if possible.
1170 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
1173 objdump_print_addr (bfd_vma vma
,
1174 struct disassemble_info
*inf
,
1175 bfd_boolean skip_zeroes
)
1177 struct objdump_disasm_info
*aux
;
1178 asymbol
*sym
= NULL
;
1179 bfd_boolean skip_find
= FALSE
;
1181 aux
= (struct objdump_disasm_info
*) inf
->application_data
;
1183 if (sorted_symcount
< 1)
1185 (*inf
->fprintf_func
) (inf
->stream
, "0x");
1186 objdump_print_value (vma
, inf
, skip_zeroes
);
1188 if (display_file_offsets
)
1189 inf
->fprintf_func (inf
->stream
, _(" (File Offset: 0x%lx)"),
1190 (long int)(aux
->sec
->filepos
+ (vma
- aux
->sec
->vma
)));
1194 if (aux
->reloc
!= NULL
1195 && aux
->reloc
->sym_ptr_ptr
!= NULL
1196 && * aux
->reloc
->sym_ptr_ptr
!= NULL
)
1198 sym
= * aux
->reloc
->sym_ptr_ptr
;
1200 /* Adjust the vma to the reloc. */
1201 vma
+= bfd_asymbol_value (sym
);
1203 if (bfd_is_und_section (bfd_get_section (sym
)))
1208 sym
= find_symbol_for_address (vma
, inf
, NULL
);
1210 objdump_print_addr_with_sym (aux
->abfd
, aux
->sec
, sym
, vma
, inf
,
1214 /* Print VMA to INFO. This function is passed to the disassembler
1218 objdump_print_address (bfd_vma vma
, struct disassemble_info
*inf
)
1220 objdump_print_addr (vma
, inf
, ! prefix_addresses
);
1223 /* Determine if the given address has a symbol associated with it. */
1226 objdump_symbol_at_address (bfd_vma vma
, struct disassemble_info
* inf
)
1230 sym
= find_symbol_for_address (vma
, inf
, NULL
);
1232 return (sym
!= NULL
&& (bfd_asymbol_value (sym
) == vma
));
1235 /* Hold the last function name and the last line number we displayed
1236 in a disassembly. */
1238 static char *prev_functionname
;
1239 static unsigned int prev_line
;
1240 static unsigned int prev_discriminator
;
1242 /* We keep a list of all files that we have seen when doing a
1243 disassembly with source, so that we know how much of the file to
1244 display. This can be important for inlined functions. */
1246 struct print_file_list
1248 struct print_file_list
*next
;
1249 const char *filename
;
1250 const char *modname
;
1253 const char **linemap
;
1256 unsigned max_printed
;
1260 static struct print_file_list
*print_files
;
1262 /* The number of preceding context lines to show when we start
1263 displaying a file for the first time. */
1265 #define SHOW_PRECEDING_CONTEXT_LINES (5)
1267 /* Read a complete file into memory. */
1270 slurp_file (const char *fn
, size_t *size
, struct stat
*fst
)
1273 int ps
= getpagesize ();
1277 int fd
= open (fn
, O_RDONLY
| O_BINARY
);
1281 if (fstat (fd
, fst
) < 0)
1286 *size
= fst
->st_size
;
1288 msize
= (*size
+ ps
- 1) & ~(ps
- 1);
1289 map
= mmap (NULL
, msize
, PROT_READ
, MAP_SHARED
, fd
, 0);
1290 if (map
!= (char *) -1L)
1296 map
= (const char *) malloc (*size
);
1297 if (!map
|| (size_t) read (fd
, (char *) map
, *size
) != *size
)
1299 free ((void *) map
);
1306 #define line_map_decrease 5
1308 /* Precompute array of lines for a mapped file. */
1310 static const char **
1311 index_file (const char *map
, size_t size
, unsigned int *maxline
)
1313 const char *p
, *lstart
, *end
;
1314 int chars_per_line
= 45; /* First iteration will use 40. */
1315 unsigned int lineno
;
1316 const char **linemap
= NULL
;
1317 unsigned long line_map_size
= 0;
1323 for (p
= map
; p
< end
; p
++)
1327 if (p
+ 1 < end
&& p
[1] == '\r')
1330 else if (*p
== '\r')
1332 if (p
+ 1 < end
&& p
[1] == '\n')
1338 /* End of line found. */
1340 if (linemap
== NULL
|| line_map_size
< lineno
+ 1)
1342 unsigned long newsize
;
1344 chars_per_line
-= line_map_decrease
;
1345 if (chars_per_line
<= 1)
1347 line_map_size
= size
/ chars_per_line
+ 1;
1348 if (line_map_size
< lineno
+ 1)
1349 line_map_size
= lineno
+ 1;
1350 newsize
= line_map_size
* sizeof (char *);
1351 linemap
= (const char **) xrealloc (linemap
, newsize
);
1354 linemap
[lineno
++] = lstart
;
1362 /* Tries to open MODNAME, and if successful adds a node to print_files
1363 linked list and returns that node. Returns NULL on failure. */
1365 static struct print_file_list
*
1366 try_print_file_open (const char *origname
, const char *modname
, struct stat
*fst
)
1368 struct print_file_list
*p
;
1370 p
= (struct print_file_list
*) xmalloc (sizeof (struct print_file_list
));
1372 p
->map
= slurp_file (modname
, &p
->mapsize
, fst
);
1379 p
->linemap
= index_file (p
->map
, p
->mapsize
, &p
->maxline
);
1382 p
->filename
= origname
;
1383 p
->modname
= modname
;
1384 p
->next
= print_files
;
1390 /* If the source file, as described in the symtab, is not found
1391 try to locate it in one of the paths specified with -I
1392 If found, add location to print_files linked list. */
1394 static struct print_file_list
*
1395 update_source_path (const char *filename
, bfd
*abfd
)
1397 struct print_file_list
*p
;
1402 p
= try_print_file_open (filename
, filename
, &fst
);
1405 if (include_path_count
== 0)
1408 /* Get the name of the file. */
1409 fname
= lbasename (filename
);
1411 /* If file exists under a new path, we need to add it to the list
1412 so that show_line knows about it. */
1413 for (i
= 0; i
< include_path_count
; i
++)
1415 char *modname
= concat (include_paths
[i
], "/", fname
,
1418 p
= try_print_file_open (filename
, modname
, &fst
);
1428 long mtime
= bfd_get_mtime (abfd
);
1430 if (fst
.st_mtime
> mtime
)
1431 warn (_("source file %s is more recent than object file\n"),
1438 /* Print a source file line. */
1441 print_line (struct print_file_list
*p
, unsigned int linenum
)
1447 if (linenum
>= p
->maxline
)
1449 l
= p
->linemap
[linenum
];
1450 /* Test fwrite return value to quiet glibc warning. */
1451 len
= strcspn (l
, "\n\r");
1452 if (len
== 0 || fwrite (l
, len
, 1, stdout
) == 1)
1456 /* Print a range of source code lines. */
1459 dump_lines (struct print_file_list
*p
, unsigned int start
, unsigned int end
)
1463 while (start
<= end
)
1465 print_line (p
, start
);
1470 /* Show the line number, or the source line, in a disassembly
1474 show_line (bfd
*abfd
, asection
*section
, bfd_vma addr_offset
)
1476 const char *filename
;
1477 const char *functionname
;
1478 unsigned int linenumber
;
1479 unsigned int discriminator
;
1483 if (! with_line_numbers
&& ! with_source_code
)
1486 if (! bfd_find_nearest_line_discriminator (abfd
, section
, syms
, addr_offset
,
1487 &filename
, &functionname
,
1488 &linenumber
, &discriminator
))
1491 if (filename
!= NULL
&& *filename
== '\0')
1493 if (functionname
!= NULL
&& *functionname
== '\0')
1494 functionname
= NULL
;
1497 && IS_ABSOLUTE_PATH (filename
)
1501 const char *fname
= filename
;
1503 path
= xmalloc (prefix_length
+ PATH_MAX
+ 1);
1506 memcpy (path
, prefix
, prefix_length
);
1507 path_up
= path
+ prefix_length
;
1509 /* Build relocated filename, stripping off leading directories
1510 from the initial filename if requested. */
1511 if (prefix_strip
> 0)
1516 /* Skip selected directory levels. */
1517 for (s
= fname
+ 1; *s
!= '\0' && level
< prefix_strip
; s
++)
1518 if (IS_DIR_SEPARATOR(*s
))
1525 /* Update complete filename. */
1526 strncpy (path_up
, fname
, PATH_MAX
);
1527 path_up
[PATH_MAX
] = '\0';
1535 if (with_line_numbers
)
1537 if (functionname
!= NULL
1538 && (prev_functionname
== NULL
1539 || strcmp (functionname
, prev_functionname
) != 0))
1540 printf ("%s():\n", functionname
);
1541 if (linenumber
> 0 && (linenumber
!= prev_line
||
1542 (discriminator
!= prev_discriminator
)))
1544 if (discriminator
> 0)
1545 printf ("%s:%u (discriminator %u)\n", filename
== NULL
? "???" : filename
,
1546 linenumber
, discriminator
);
1548 printf ("%s:%u\n", filename
== NULL
? "???" : filename
, linenumber
);
1552 const char *filename2
;
1553 const char *functionname2
;
1556 while (bfd_find_inliner_info (abfd
, &filename2
, &functionname2
,
1558 printf ("inlined by %s:%u (%s)\n", filename2
, line2
,
1563 if (with_source_code
1567 struct print_file_list
**pp
, *p
;
1570 for (pp
= &print_files
; *pp
!= NULL
; pp
= &(*pp
)->next
)
1571 if (filename_cmp ((*pp
)->filename
, filename
) == 0)
1578 filename
= xstrdup (filename
);
1579 p
= update_source_path (filename
, abfd
);
1582 if (p
!= NULL
&& linenumber
!= p
->last_line
)
1584 if (file_start_context
&& p
->first
)
1588 l
= linenumber
- SHOW_PRECEDING_CONTEXT_LINES
;
1589 if (l
>= linenumber
)
1591 if (p
->max_printed
>= l
)
1593 if (p
->max_printed
< linenumber
)
1594 l
= p
->max_printed
+ 1;
1599 dump_lines (p
, l
, linenumber
);
1600 if (p
->max_printed
< linenumber
)
1601 p
->max_printed
= linenumber
;
1602 p
->last_line
= linenumber
;
1607 if (functionname
!= NULL
1608 && (prev_functionname
== NULL
1609 || strcmp (functionname
, prev_functionname
) != 0))
1611 if (prev_functionname
!= NULL
)
1612 free (prev_functionname
);
1613 prev_functionname
= (char *) xmalloc (strlen (functionname
) + 1);
1614 strcpy (prev_functionname
, functionname
);
1617 if (linenumber
> 0 && linenumber
!= prev_line
)
1618 prev_line
= linenumber
;
1620 if (discriminator
!= prev_discriminator
)
1621 prev_discriminator
= discriminator
;
1627 /* Pseudo FILE object for strings. */
1635 /* sprintf to a "stream". */
1637 static int ATTRIBUTE_PRINTF_2
1638 objdump_sprintf (SFILE
*f
, const char *format
, ...)
1645 size_t space
= f
->alloc
- f
->pos
;
1647 va_start (args
, format
);
1648 n
= vsnprintf (f
->buffer
+ f
->pos
, space
, format
, args
);
1654 f
->alloc
= (f
->alloc
+ n
) * 2;
1655 f
->buffer
= (char *) xrealloc (f
->buffer
, f
->alloc
);
1662 /* The number of zeroes we want to see before we start skipping them.
1663 The number is arbitrarily chosen. */
1665 #define DEFAULT_SKIP_ZEROES 8
1667 /* The number of zeroes to skip at the end of a section. If the
1668 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1669 SKIP_ZEROES, they will be disassembled. If there are fewer than
1670 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1671 attempt to avoid disassembling zeroes inserted by section
1674 #define DEFAULT_SKIP_ZEROES_AT_END 3
1676 /* Disassemble some data in memory between given values. */
1679 disassemble_bytes (struct disassemble_info
* inf
,
1680 disassembler_ftype disassemble_fn
,
1683 bfd_vma start_offset
,
1684 bfd_vma stop_offset
,
1687 arelent
** relppend
)
1689 struct objdump_disasm_info
*aux
;
1691 int octets_per_line
;
1692 int skip_addr_chars
;
1693 bfd_vma addr_offset
;
1694 unsigned int opb
= inf
->octets_per_byte
;
1695 unsigned int skip_zeroes
= inf
->skip_zeroes
;
1696 unsigned int skip_zeroes_at_end
= inf
->skip_zeroes_at_end
;
1700 aux
= (struct objdump_disasm_info
*) inf
->application_data
;
1704 sfile
.buffer
= (char *) xmalloc (sfile
.alloc
);
1708 octets_per_line
= insn_width
;
1710 octets_per_line
= 4;
1712 octets_per_line
= 16;
1714 /* Figure out how many characters to skip at the start of an
1715 address, to make the disassembly look nicer. We discard leading
1716 zeroes in chunks of 4, ensuring that there is always a leading
1718 skip_addr_chars
= 0;
1719 if (! prefix_addresses
)
1723 bfd_sprintf_vma (aux
->abfd
, buf
, section
->vma
+ section
->size
/ opb
);
1725 while (buf
[skip_addr_chars
] == '0')
1728 /* Don't discard zeros on overflow. */
1729 if (buf
[skip_addr_chars
] == '\0' && section
->vma
!= 0)
1730 skip_addr_chars
= 0;
1732 if (skip_addr_chars
!= 0)
1733 skip_addr_chars
= (skip_addr_chars
- 1) & -4;
1736 inf
->insn_info_valid
= 0;
1738 addr_offset
= start_offset
;
1739 while (addr_offset
< stop_offset
)
1742 bfd_boolean need_nl
= FALSE
;
1743 int previous_octets
;
1745 /* Remember the length of the previous instruction. */
1746 previous_octets
= octets
;
1749 /* Make sure we don't use relocs from previous instructions. */
1752 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1754 for (z
= addr_offset
* opb
; z
< stop_offset
* opb
; z
++)
1757 if (! disassemble_zeroes
1758 && (inf
->insn_info_valid
== 0
1759 || inf
->branch_delay_insns
== 0)
1760 && (z
- addr_offset
* opb
>= skip_zeroes
1761 || (z
== stop_offset
* opb
&&
1762 z
- addr_offset
* opb
< skip_zeroes_at_end
)))
1764 /* If there are more nonzero octets to follow, we only skip
1765 zeroes in multiples of 4, to try to avoid running over
1766 the start of an instruction which happens to start with
1768 if (z
!= stop_offset
* opb
)
1769 z
= addr_offset
* opb
+ ((z
- addr_offset
* opb
) &~ 3);
1771 octets
= z
- addr_offset
* opb
;
1773 /* If we are going to display more data, and we are displaying
1774 file offsets, then tell the user how many zeroes we skip
1775 and the file offset from where we resume dumping. */
1776 if (display_file_offsets
&& ((addr_offset
+ (octets
/ opb
)) < stop_offset
))
1777 printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
1779 (unsigned long) (section
->filepos
1780 + (addr_offset
+ (octets
/ opb
))));
1790 if (with_line_numbers
|| with_source_code
)
1791 show_line (aux
->abfd
, section
, addr_offset
);
1793 if (! prefix_addresses
)
1797 bfd_sprintf_vma (aux
->abfd
, buf
, section
->vma
+ addr_offset
);
1798 for (s
= buf
+ skip_addr_chars
; *s
== '0'; s
++)
1802 printf ("%s:\t", buf
+ skip_addr_chars
);
1806 aux
->require_sec
= TRUE
;
1807 objdump_print_address (section
->vma
+ addr_offset
, inf
);
1808 aux
->require_sec
= FALSE
;
1815 inf
->fprintf_func
= (fprintf_ftype
) objdump_sprintf
;
1816 inf
->stream
= &sfile
;
1817 inf
->bytes_per_line
= 0;
1818 inf
->bytes_per_chunk
= 0;
1819 inf
->flags
= disassemble_all
? DISASSEMBLE_DATA
: 0;
1821 inf
->flags
|= USER_SPECIFIED_MACHINE_TYPE
;
1823 if (inf
->disassembler_needs_relocs
1824 && (bfd_get_file_flags (aux
->abfd
) & EXEC_P
) == 0
1825 && (bfd_get_file_flags (aux
->abfd
) & DYNAMIC
) == 0
1826 && *relppp
< relppend
)
1828 bfd_signed_vma distance_to_rel
;
1830 distance_to_rel
= (**relppp
)->address
1831 - (rel_offset
+ addr_offset
);
1833 /* Check to see if the current reloc is associated with
1834 the instruction that we are about to disassemble. */
1835 if (distance_to_rel
== 0
1836 /* FIXME: This is wrong. We are trying to catch
1837 relocs that are addressed part way through the
1838 current instruction, as might happen with a packed
1839 VLIW instruction. Unfortunately we do not know the
1840 length of the current instruction since we have not
1841 disassembled it yet. Instead we take a guess based
1842 upon the length of the previous instruction. The
1843 proper solution is to have a new target-specific
1844 disassembler function which just returns the length
1845 of an instruction at a given address without trying
1846 to display its disassembly. */
1847 || (distance_to_rel
> 0
1848 && distance_to_rel
< (bfd_signed_vma
) (previous_octets
/ opb
)))
1850 inf
->flags
|= INSN_HAS_RELOC
;
1851 aux
->reloc
= **relppp
;
1855 if (! disassemble_all
1856 && (section
->flags
& (SEC_CODE
| SEC_HAS_CONTENTS
))
1857 == (SEC_CODE
| SEC_HAS_CONTENTS
))
1858 /* Set a stop_vma so that the disassembler will not read
1859 beyond the next symbol. We assume that symbols appear on
1860 the boundaries between instructions. We only do this when
1861 disassembling code of course, and when -D is in effect. */
1862 inf
->stop_vma
= section
->vma
+ stop_offset
;
1864 octets
= (*disassemble_fn
) (section
->vma
+ addr_offset
, inf
);
1867 inf
->fprintf_func
= (fprintf_ftype
) fprintf
;
1868 inf
->stream
= stdout
;
1869 if (insn_width
== 0 && inf
->bytes_per_line
!= 0)
1870 octets_per_line
= inf
->bytes_per_line
;
1871 if (octets
< (int) opb
)
1874 printf ("%s\n", sfile
.buffer
);
1877 non_fatal (_("disassemble_fn returned length %d"),
1888 octets
= octets_per_line
;
1889 if (addr_offset
+ octets
/ opb
> stop_offset
)
1890 octets
= (stop_offset
- addr_offset
) * opb
;
1892 for (j
= addr_offset
* opb
; j
< addr_offset
* opb
+ octets
; ++j
)
1894 if (ISPRINT (data
[j
]))
1895 buf
[j
- addr_offset
* opb
] = data
[j
];
1897 buf
[j
- addr_offset
* opb
] = '.';
1899 buf
[j
- addr_offset
* opb
] = '\0';
1902 if (prefix_addresses
1904 : show_raw_insn
>= 0)
1908 /* If ! prefix_addresses and ! wide_output, we print
1909 octets_per_line octets per line. */
1911 if (pb
> octets_per_line
&& ! prefix_addresses
&& ! wide_output
)
1912 pb
= octets_per_line
;
1914 if (inf
->bytes_per_chunk
)
1915 bpc
= inf
->bytes_per_chunk
;
1919 for (j
= addr_offset
* opb
; j
< addr_offset
* opb
+ pb
; j
+= bpc
)
1921 /* PR 21580: Check for a buffer ending early. */
1922 if (j
+ bpc
<= stop_offset
* opb
)
1926 if (inf
->display_endian
== BFD_ENDIAN_LITTLE
)
1928 for (k
= bpc
- 1; k
>= 0; k
--)
1929 printf ("%02x", (unsigned) data
[j
+ k
]);
1933 for (k
= 0; k
< bpc
; k
++)
1934 printf ("%02x", (unsigned) data
[j
+ k
]);
1940 for (; pb
< octets_per_line
; pb
+= bpc
)
1944 for (k
= 0; k
< bpc
; k
++)
1949 /* Separate raw data from instruction by extra space. */
1959 printf ("%s", sfile
.buffer
);
1961 if (prefix_addresses
1963 : show_raw_insn
>= 0)
1971 j
= addr_offset
* opb
+ pb
;
1973 bfd_sprintf_vma (aux
->abfd
, buf
, section
->vma
+ j
/ opb
);
1974 for (s
= buf
+ skip_addr_chars
; *s
== '0'; s
++)
1978 printf ("%s:\t", buf
+ skip_addr_chars
);
1980 pb
+= octets_per_line
;
1983 for (; j
< addr_offset
* opb
+ pb
; j
+= bpc
)
1985 /* PR 21619: Check for a buffer ending early. */
1986 if (j
+ bpc
<= stop_offset
* opb
)
1990 if (inf
->display_endian
== BFD_ENDIAN_LITTLE
)
1992 for (k
= bpc
- 1; k
>= 0; k
--)
1993 printf ("%02x", (unsigned) data
[j
+ k
]);
1997 for (k
= 0; k
< bpc
; k
++)
1998 printf ("%02x", (unsigned) data
[j
+ k
]);
2012 while ((*relppp
) < relppend
2013 && (**relppp
)->address
< rel_offset
+ addr_offset
+ octets
/ opb
)
2015 if (dump_reloc_info
|| dump_dynamic_reloc_info
)
2026 objdump_print_value (section
->vma
- rel_offset
+ q
->address
,
2029 if (q
->howto
== NULL
)
2030 printf (": *unknown*\t");
2031 else if (q
->howto
->name
)
2032 printf (": %s\t", q
->howto
->name
);
2034 printf (": %d\t", q
->howto
->type
);
2036 if (q
->sym_ptr_ptr
== NULL
|| *q
->sym_ptr_ptr
== NULL
)
2037 printf ("*unknown*");
2040 const char *sym_name
;
2042 sym_name
= bfd_asymbol_name (*q
->sym_ptr_ptr
);
2043 if (sym_name
!= NULL
&& *sym_name
!= '\0')
2044 objdump_print_symname (aux
->abfd
, inf
, *q
->sym_ptr_ptr
);
2049 sym_sec
= bfd_get_section (*q
->sym_ptr_ptr
);
2050 sym_name
= bfd_get_section_name (aux
->abfd
, sym_sec
);
2051 if (sym_name
== NULL
|| *sym_name
== '\0')
2052 sym_name
= "*unknown*";
2053 printf ("%s", sym_name
);
2059 bfd_signed_vma addend
= q
->addend
;
2067 objdump_print_value (addend
, inf
, TRUE
);
2079 addr_offset
+= octets
/ opb
;
2082 free (sfile
.buffer
);
2086 disassemble_section (bfd
*abfd
, asection
*section
, void *inf
)
2088 const struct elf_backend_data
* bed
;
2089 bfd_vma sign_adjust
= 0;
2090 struct disassemble_info
* pinfo
= (struct disassemble_info
*) inf
;
2091 struct objdump_disasm_info
* paux
;
2092 unsigned int opb
= pinfo
->octets_per_byte
;
2093 bfd_byte
* data
= NULL
;
2094 bfd_size_type datasize
= 0;
2095 arelent
** rel_pp
= NULL
;
2096 arelent
** rel_ppstart
= NULL
;
2097 arelent
** rel_ppend
;
2098 bfd_vma stop_offset
;
2099 asymbol
* sym
= NULL
;
2103 unsigned long addr_offset
;
2105 /* Sections that do not contain machine
2106 code are not normally disassembled. */
2107 if (! disassemble_all
2108 && only_list
== NULL
2109 && ((section
->flags
& (SEC_CODE
| SEC_HAS_CONTENTS
))
2110 != (SEC_CODE
| SEC_HAS_CONTENTS
)))
2113 if (! process_section_p (section
))
2116 datasize
= bfd_get_section_size (section
);
2120 if (start_address
== (bfd_vma
) -1
2121 || start_address
< section
->vma
)
2124 addr_offset
= start_address
- section
->vma
;
2126 if (stop_address
== (bfd_vma
) -1)
2127 stop_offset
= datasize
/ opb
;
2130 if (stop_address
< section
->vma
)
2133 stop_offset
= stop_address
- section
->vma
;
2134 if (stop_offset
> datasize
/ opb
)
2135 stop_offset
= datasize
/ opb
;
2138 if (addr_offset
>= stop_offset
)
2141 /* Decide which set of relocs to use. Load them if necessary. */
2142 paux
= (struct objdump_disasm_info
*) pinfo
->application_data
;
2143 if (paux
->dynrelbuf
&& dump_dynamic_reloc_info
)
2145 rel_pp
= paux
->dynrelbuf
;
2146 rel_count
= paux
->dynrelcount
;
2147 /* Dynamic reloc addresses are absolute, non-dynamic are section
2148 relative. REL_OFFSET specifies the reloc address corresponding
2149 to the start of this section. */
2150 rel_offset
= section
->vma
;
2158 if ((section
->flags
& SEC_RELOC
) != 0
2159 && (dump_reloc_info
|| pinfo
->disassembler_needs_relocs
))
2163 relsize
= bfd_get_reloc_upper_bound (abfd
, section
);
2165 bfd_fatal (bfd_get_filename (abfd
));
2169 rel_ppstart
= rel_pp
= (arelent
**) xmalloc (relsize
);
2170 rel_count
= bfd_canonicalize_reloc (abfd
, section
, rel_pp
, syms
);
2172 bfd_fatal (bfd_get_filename (abfd
));
2174 /* Sort the relocs by address. */
2175 qsort (rel_pp
, rel_count
, sizeof (arelent
*), compare_relocs
);
2179 rel_ppend
= rel_pp
+ rel_count
;
2181 /* PR 21665: Check for overlarge datasizes.
2182 Note - we used to check for "datasize > bfd_get_file_size (abfd)" but
2183 this fails when using compressed sections or compressed file formats
2186 The call to xmalloc below will fail if too much memory is requested,
2187 which will catch the problem in the normal use case. But if a memory
2188 checker is in use, eg valgrind or sanitize, then an exception will
2189 be still generated, so we try to catch the problem first.
2191 Unfortunately there is no simple way to determine how much memory can
2192 be allocated by calling xmalloc. So instead we use a simple, arbitrary
2193 limit of 2Gb. Hopefully this should be enough for most users. If
2194 someone does start trying to disassemble sections larger then 2Gb in
2195 size they will doubtless complain and we can increase the limit. */
2196 #define MAX_XMALLOC (1024 * 1024 * 1024 * 2UL) /* 2Gb */
2197 if (datasize
> MAX_XMALLOC
)
2199 non_fatal (_("Reading section %s failed because it is too big (%#lx)"),
2200 section
->name
, (unsigned long) datasize
);
2204 data
= (bfd_byte
*) xmalloc (datasize
);
2206 if (!bfd_get_section_contents (abfd
, section
, data
, 0, datasize
))
2208 non_fatal (_("Reading section %s failed because: %s"),
2209 section
->name
, bfd_errmsg (bfd_get_error ()));
2213 paux
->sec
= section
;
2214 pinfo
->buffer
= data
;
2215 pinfo
->buffer_vma
= section
->vma
;
2216 pinfo
->buffer_length
= datasize
;
2217 pinfo
->section
= section
;
2219 /* Skip over the relocs belonging to addresses below the
2221 while (rel_pp
< rel_ppend
2222 && (*rel_pp
)->address
< rel_offset
+ addr_offset
)
2225 printf (_("\nDisassembly of section %s:\n"), section
->name
);
2227 /* Find the nearest symbol forwards from our current position. */
2228 paux
->require_sec
= TRUE
;
2229 sym
= (asymbol
*) find_symbol_for_address (section
->vma
+ addr_offset
,
2230 (struct disassemble_info
*) inf
,
2232 paux
->require_sec
= FALSE
;
2234 /* PR 9774: If the target used signed addresses then we must make
2235 sure that we sign extend the value that we calculate for 'addr'
2236 in the loop below. */
2237 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
2238 && (bed
= get_elf_backend_data (abfd
)) != NULL
2239 && bed
->sign_extend_vma
)
2240 sign_adjust
= (bfd_vma
) 1 << (bed
->s
->arch_size
- 1);
2242 /* Disassemble a block of instructions up to the address associated with
2243 the symbol we have just found. Then print the symbol and find the
2244 next symbol on. Repeat until we have disassembled the entire section
2245 or we have reached the end of the address range we are interested in. */
2246 while (addr_offset
< stop_offset
)
2250 bfd_vma nextstop_offset
;
2253 addr
= section
->vma
+ addr_offset
;
2254 addr
= ((addr
& ((sign_adjust
<< 1) - 1)) ^ sign_adjust
) - sign_adjust
;
2256 if (sym
!= NULL
&& bfd_asymbol_value (sym
) <= addr
)
2261 (x
< sorted_symcount
2262 && (bfd_asymbol_value (sorted_syms
[x
]) <= addr
));
2266 pinfo
->symbols
= sorted_syms
+ place
;
2267 pinfo
->num_symbols
= x
- place
;
2268 pinfo
->symtab_pos
= place
;
2272 pinfo
->symbols
= NULL
;
2273 pinfo
->num_symbols
= 0;
2274 pinfo
->symtab_pos
= -1;
2277 if (! prefix_addresses
)
2279 pinfo
->fprintf_func (pinfo
->stream
, "\n");
2280 objdump_print_addr_with_sym (abfd
, section
, sym
, addr
,
2282 pinfo
->fprintf_func (pinfo
->stream
, ":\n");
2285 if (sym
!= NULL
&& bfd_asymbol_value (sym
) > addr
)
2287 else if (sym
== NULL
)
2291 #define is_valid_next_sym(SYM) \
2292 ((SYM)->section == section \
2293 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
2294 && pinfo->symbol_is_valid (SYM, pinfo))
2296 /* Search forward for the next appropriate symbol in
2297 SECTION. Note that all the symbols are sorted
2298 together into one big array, and that some sections
2299 may have overlapping addresses. */
2300 while (place
< sorted_symcount
2301 && ! is_valid_next_sym (sorted_syms
[place
]))
2304 if (place
>= sorted_symcount
)
2307 nextsym
= sorted_syms
[place
];
2310 if (sym
!= NULL
&& bfd_asymbol_value (sym
) > addr
)
2311 nextstop_offset
= bfd_asymbol_value (sym
) - section
->vma
;
2312 else if (nextsym
== NULL
)
2313 nextstop_offset
= stop_offset
;
2315 nextstop_offset
= bfd_asymbol_value (nextsym
) - section
->vma
;
2317 if (nextstop_offset
> stop_offset
2318 || nextstop_offset
<= addr_offset
)
2319 nextstop_offset
= stop_offset
;
2321 /* If a symbol is explicitly marked as being an object
2322 rather than a function, just dump the bytes without
2323 disassembling them. */
2326 || sym
->section
!= section
2327 || bfd_asymbol_value (sym
) > addr
2328 || ((sym
->flags
& BSF_OBJECT
) == 0
2329 && (strstr (bfd_asymbol_name (sym
), "gnu_compiled")
2331 && (strstr (bfd_asymbol_name (sym
), "gcc2_compiled")
2333 || (sym
->flags
& BSF_FUNCTION
) != 0)
2338 disassemble_bytes (pinfo
, paux
->disassemble_fn
, insns
, data
,
2339 addr_offset
, nextstop_offset
,
2340 rel_offset
, &rel_pp
, rel_ppend
);
2342 addr_offset
= nextstop_offset
;
2348 if (rel_ppstart
!= NULL
)
2352 /* Disassemble the contents of an object file. */
2355 disassemble_data (bfd
*abfd
)
2357 struct disassemble_info disasm_info
;
2358 struct objdump_disasm_info aux
;
2362 prev_functionname
= NULL
;
2364 prev_discriminator
= 0;
2366 /* We make a copy of syms to sort. We don't want to sort syms
2367 because that will screw up the relocs. */
2368 sorted_symcount
= symcount
? symcount
: dynsymcount
;
2369 sorted_syms
= (asymbol
**) xmalloc ((sorted_symcount
+ synthcount
)
2370 * sizeof (asymbol
*));
2371 memcpy (sorted_syms
, symcount
? syms
: dynsyms
,
2372 sorted_symcount
* sizeof (asymbol
*));
2374 sorted_symcount
= remove_useless_symbols (sorted_syms
, sorted_symcount
);
2376 for (i
= 0; i
< synthcount
; ++i
)
2378 sorted_syms
[sorted_symcount
] = synthsyms
+ i
;
2382 /* Sort the symbols into section and symbol order. */
2383 qsort (sorted_syms
, sorted_symcount
, sizeof (asymbol
*), compare_symbols
);
2385 init_disassemble_info (&disasm_info
, stdout
, (fprintf_ftype
) fprintf
);
2387 disasm_info
.application_data
= (void *) &aux
;
2389 aux
.require_sec
= FALSE
;
2390 aux
.dynrelbuf
= NULL
;
2391 aux
.dynrelcount
= 0;
2394 disasm_info
.print_address_func
= objdump_print_address
;
2395 disasm_info
.symbol_at_address_func
= objdump_symbol_at_address
;
2397 if (machine
!= NULL
)
2399 const bfd_arch_info_type
*inf
= bfd_scan_arch (machine
);
2402 fatal (_("can't use supplied machine %s"), machine
);
2404 abfd
->arch_info
= inf
;
2407 if (endian
!= BFD_ENDIAN_UNKNOWN
)
2409 struct bfd_target
*xvec
;
2411 xvec
= (struct bfd_target
*) xmalloc (sizeof (struct bfd_target
));
2412 memcpy (xvec
, abfd
->xvec
, sizeof (struct bfd_target
));
2413 xvec
->byteorder
= endian
;
2417 /* Use libopcodes to locate a suitable disassembler. */
2418 aux
.disassemble_fn
= disassembler (bfd_get_arch (abfd
),
2419 bfd_big_endian (abfd
),
2420 bfd_get_mach (abfd
), abfd
);
2421 if (!aux
.disassemble_fn
)
2423 non_fatal (_("can't disassemble for architecture %s\n"),
2424 bfd_printable_arch_mach (bfd_get_arch (abfd
), 0));
2429 disasm_info
.flavour
= bfd_get_flavour (abfd
);
2430 disasm_info
.arch
= bfd_get_arch (abfd
);
2431 disasm_info
.mach
= bfd_get_mach (abfd
);
2432 disasm_info
.disassembler_options
= disassembler_options
;
2433 disasm_info
.octets_per_byte
= bfd_octets_per_byte (abfd
);
2434 disasm_info
.skip_zeroes
= DEFAULT_SKIP_ZEROES
;
2435 disasm_info
.skip_zeroes_at_end
= DEFAULT_SKIP_ZEROES_AT_END
;
2436 disasm_info
.disassembler_needs_relocs
= FALSE
;
2438 if (bfd_big_endian (abfd
))
2439 disasm_info
.display_endian
= disasm_info
.endian
= BFD_ENDIAN_BIG
;
2440 else if (bfd_little_endian (abfd
))
2441 disasm_info
.display_endian
= disasm_info
.endian
= BFD_ENDIAN_LITTLE
;
2443 /* ??? Aborting here seems too drastic. We could default to big or little
2445 disasm_info
.endian
= BFD_ENDIAN_UNKNOWN
;
2447 /* Allow the target to customize the info structure. */
2448 disassemble_init_for_target (& disasm_info
);
2450 /* Pre-load the dynamic relocs as we may need them during the disassembly. */
2452 long relsize
= bfd_get_dynamic_reloc_upper_bound (abfd
);
2454 if (relsize
< 0 && dump_dynamic_reloc_info
)
2455 bfd_fatal (bfd_get_filename (abfd
));
2459 aux
.dynrelbuf
= (arelent
**) xmalloc (relsize
);
2460 aux
.dynrelcount
= bfd_canonicalize_dynamic_reloc (abfd
,
2463 if (aux
.dynrelcount
< 0)
2464 bfd_fatal (bfd_get_filename (abfd
));
2466 /* Sort the relocs by address. */
2467 qsort (aux
.dynrelbuf
, aux
.dynrelcount
, sizeof (arelent
*),
2471 disasm_info
.symtab
= sorted_syms
;
2472 disasm_info
.symtab_size
= sorted_symcount
;
2474 bfd_map_over_sections (abfd
, disassemble_section
, & disasm_info
);
2476 if (aux
.dynrelbuf
!= NULL
)
2477 free (aux
.dynrelbuf
);
2482 load_specific_debug_section (enum dwarf_section_display_enum debug
,
2483 asection
*sec
, void *file
)
2485 struct dwarf_section
*section
= &debug_displays
[debug
].section
;
2486 bfd
*abfd
= (bfd
*) file
;
2489 /* If it is already loaded, do nothing. */
2490 if (section
->start
!= NULL
)
2493 section
->reloc_info
= NULL
;
2494 section
->num_relocs
= 0;
2495 section
->address
= bfd_get_section_vma (abfd
, sec
);
2496 section
->size
= bfd_get_section_size (sec
);
2497 section
->start
= NULL
;
2498 section
->user_data
= sec
;
2499 ret
= bfd_get_full_section_contents (abfd
, sec
, §ion
->start
);
2503 free_debug_section (debug
);
2504 printf (_("\nCan't get contents for section '%s'.\n"),
2509 if (is_relocatable
&& debug_displays
[debug
].relocate
)
2511 bfd_cache_section_contents (sec
, section
->start
);
2513 ret
= bfd_simple_get_relocated_section_contents (abfd
,
2520 free_debug_section (debug
);
2521 printf (_("\nCan't get contents for section '%s'.\n"),
2528 reloc_size
= bfd_get_reloc_upper_bound (abfd
, sec
);
2531 unsigned long reloc_count
;
2534 relocs
= (arelent
**) xmalloc (reloc_size
);
2536 reloc_count
= bfd_canonicalize_reloc (abfd
, sec
, relocs
, NULL
);
2537 if (reloc_count
== 0)
2541 section
->reloc_info
= relocs
;
2542 section
->num_relocs
= reloc_count
;
2551 reloc_at (struct dwarf_section
* dsec
, dwarf_vma offset
)
2556 if (dsec
== NULL
|| dsec
->reloc_info
== NULL
)
2559 relocs
= (arelent
**) dsec
->reloc_info
;
2561 for (; (rp
= * relocs
) != NULL
; ++ relocs
)
2562 if (rp
->address
== offset
)
2569 load_debug_section (enum dwarf_section_display_enum debug
, void *file
)
2571 struct dwarf_section
*section
= &debug_displays
[debug
].section
;
2572 bfd
*abfd
= (bfd
*) file
;
2575 /* If it is already loaded, do nothing. */
2576 if (section
->start
!= NULL
)
2579 /* Locate the debug section. */
2580 sec
= bfd_get_section_by_name (abfd
, section
->uncompressed_name
);
2582 section
->name
= section
->uncompressed_name
;
2585 sec
= bfd_get_section_by_name (abfd
, section
->compressed_name
);
2587 section
->name
= section
->compressed_name
;
2592 return load_specific_debug_section (debug
, sec
, file
);
2596 free_debug_section (enum dwarf_section_display_enum debug
)
2598 struct dwarf_section
*section
= &debug_displays
[debug
].section
;
2600 if (section
->start
== NULL
)
2603 /* PR 17512: file: 0f67f69d. */
2604 if (section
->user_data
!= NULL
)
2606 asection
* sec
= (asection
*) section
->user_data
;
2608 /* If we are freeing contents that are also pointed to by the BFD
2609 library's section structure then make sure to update those pointers
2610 too. Otherwise, the next time we try to load data for this section
2611 we can end up using a stale pointer. */
2612 if (section
->start
== sec
->contents
)
2614 sec
->contents
= NULL
;
2615 sec
->flags
&= ~ SEC_IN_MEMORY
;
2616 sec
->compress_status
= COMPRESS_SECTION_NONE
;
2620 free ((char *) section
->start
);
2621 section
->start
= NULL
;
2622 section
->address
= 0;
2627 dump_dwarf_section (bfd
*abfd
, asection
*section
,
2628 void *arg ATTRIBUTE_UNUSED
)
2630 const char *name
= bfd_get_section_name (abfd
, section
);
2634 if (CONST_STRNEQ (name
, ".gnu.linkonce.wi."))
2635 match
= ".debug_info";
2639 for (i
= 0; i
< max
; i
++)
2640 if ((strcmp (debug_displays
[i
].section
.uncompressed_name
, match
) == 0
2641 || strcmp (debug_displays
[i
].section
.compressed_name
, match
) == 0)
2642 && debug_displays
[i
].enabled
!= NULL
2643 && *debug_displays
[i
].enabled
)
2645 struct dwarf_section
*sec
= &debug_displays
[i
].section
;
2647 if (strcmp (sec
->uncompressed_name
, match
) == 0)
2648 sec
->name
= sec
->uncompressed_name
;
2650 sec
->name
= sec
->compressed_name
;
2651 if (load_specific_debug_section ((enum dwarf_section_display_enum
) i
,
2654 debug_displays
[i
].display (sec
, abfd
);
2656 if (i
!= info
&& i
!= abbrev
)
2657 free_debug_section ((enum dwarf_section_display_enum
) i
);
2663 /* Dump the dwarf debugging information. */
2666 dump_dwarf (bfd
*abfd
)
2668 is_relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
2670 eh_addr_size
= bfd_arch_bits_per_address (abfd
) / 8;
2672 if (bfd_big_endian (abfd
))
2673 byte_get
= byte_get_big_endian
;
2674 else if (bfd_little_endian (abfd
))
2675 byte_get
= byte_get_little_endian
;
2677 /* PR 17512: file: objdump-s-endless-loop.tekhex. */
2679 warn (_("File %s does not contain any dwarf debug information\n"),
2680 bfd_get_filename (abfd
));
2684 switch (bfd_get_arch (abfd
))
2687 switch (bfd_get_mach (abfd
))
2689 case bfd_mach_x86_64
:
2690 case bfd_mach_x86_64_intel_syntax
:
2691 case bfd_mach_x86_64_nacl
:
2692 case bfd_mach_x64_32
:
2693 case bfd_mach_x64_32_intel_syntax
:
2694 case bfd_mach_x64_32_nacl
:
2695 init_dwarf_regnames_x86_64 ();
2699 init_dwarf_regnames_i386 ();
2704 case bfd_arch_iamcu
:
2705 init_dwarf_regnames_iamcu ();
2708 case bfd_arch_aarch64
:
2709 init_dwarf_regnames_aarch64();
2713 init_dwarf_regnames_s390 ();
2720 bfd_map_over_sections (abfd
, dump_dwarf_section
, NULL
);
2722 free_debug_memory ();
2725 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
2726 it. Return NULL on failure. */
2729 read_section_stabs (bfd
*abfd
, const char *sect_name
, bfd_size_type
*size_ptr
)
2735 stabsect
= bfd_get_section_by_name (abfd
, sect_name
);
2736 if (stabsect
== NULL
)
2738 printf (_("No %s section present\n\n"), sect_name
);
2742 size
= bfd_section_size (abfd
, stabsect
);
2743 contents
= (char *) xmalloc (size
);
2745 if (! bfd_get_section_contents (abfd
, stabsect
, contents
, 0, size
))
2747 non_fatal (_("reading %s section of %s failed: %s"),
2748 sect_name
, bfd_get_filename (abfd
),
2749 bfd_errmsg (bfd_get_error ()));
2760 /* Stabs entries use a 12 byte format:
2761 4 byte string table index
2763 1 byte stab other field
2764 2 byte stab desc field
2766 FIXME: This will have to change for a 64 bit object format. */
2768 #define STRDXOFF (0)
2770 #define OTHEROFF (5)
2773 #define STABSIZE (12)
2775 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
2776 using string table section STRSECT_NAME (in `strtab'). */
2779 print_section_stabs (bfd
*abfd
,
2780 const char *stabsect_name
,
2781 unsigned *string_offset_ptr
)
2784 unsigned file_string_table_offset
= 0;
2785 unsigned next_file_string_table_offset
= *string_offset_ptr
;
2786 bfd_byte
*stabp
, *stabs_end
;
2789 stabs_end
= stabp
+ stab_size
;
2791 printf (_("Contents of %s section:\n\n"), stabsect_name
);
2792 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
2794 /* Loop through all symbols and print them.
2796 We start the index at -1 because there is a dummy symbol on
2797 the front of stabs-in-{coff,elf} sections that supplies sizes. */
2798 for (i
= -1; stabp
<= stabs_end
- STABSIZE
; stabp
+= STABSIZE
, i
++)
2802 unsigned char type
, other
;
2803 unsigned short desc
;
2806 strx
= bfd_h_get_32 (abfd
, stabp
+ STRDXOFF
);
2807 type
= bfd_h_get_8 (abfd
, stabp
+ TYPEOFF
);
2808 other
= bfd_h_get_8 (abfd
, stabp
+ OTHEROFF
);
2809 desc
= bfd_h_get_16 (abfd
, stabp
+ DESCOFF
);
2810 value
= bfd_h_get_32 (abfd
, stabp
+ VALOFF
);
2812 printf ("\n%-6d ", i
);
2813 /* Either print the stab name, or, if unnamed, print its number
2814 again (makes consistent formatting for tools like awk). */
2815 name
= bfd_get_stab_name (type
);
2817 printf ("%-6s", name
);
2818 else if (type
== N_UNDF
)
2821 printf ("%-6d", type
);
2822 printf (" %-6d %-6d ", other
, desc
);
2823 bfd_printf_vma (abfd
, value
);
2824 printf (" %-6lu", strx
);
2826 /* Symbols with type == 0 (N_UNDF) specify the length of the
2827 string table associated with this file. We use that info
2828 to know how to relocate the *next* file's string table indices. */
2831 file_string_table_offset
= next_file_string_table_offset
;
2832 next_file_string_table_offset
+= value
;
2836 bfd_size_type amt
= strx
+ file_string_table_offset
;
2838 /* Using the (possibly updated) string table offset, print the
2839 string (if any) associated with this symbol. */
2840 if (amt
< stabstr_size
)
2841 /* PR 17512: file: 079-79389-0.001:0.1. */
2842 printf (" %.*s", (int)(stabstr_size
- amt
), strtab
+ amt
);
2848 *string_offset_ptr
= next_file_string_table_offset
;
2853 const char * section_name
;
2854 const char * string_section_name
;
2855 unsigned string_offset
;
2860 find_stabs_section (bfd
*abfd
, asection
*section
, void *names
)
2863 stab_section_names
* sought
= (stab_section_names
*) names
;
2865 /* Check for section names for which stabsect_name is a prefix, to
2866 handle .stab.N, etc. */
2867 len
= strlen (sought
->section_name
);
2869 /* If the prefix matches, and the files section name ends with a
2870 nul or a digit, then we match. I.e., we want either an exact
2871 match or a section followed by a number. */
2872 if (strncmp (sought
->section_name
, section
->name
, len
) == 0
2873 && (section
->name
[len
] == 0
2874 || (section
->name
[len
] == '.' && ISDIGIT (section
->name
[len
+ 1]))))
2877 strtab
= read_section_stabs (abfd
, sought
->string_section_name
,
2882 stabs
= (bfd_byte
*) read_section_stabs (abfd
, section
->name
,
2885 print_section_stabs (abfd
, section
->name
, &sought
->string_offset
);
2891 dump_stabs_section (bfd
*abfd
, char *stabsect_name
, char *strsect_name
)
2893 stab_section_names s
;
2895 s
.section_name
= stabsect_name
;
2896 s
.string_section_name
= strsect_name
;
2897 s
.string_offset
= 0;
2899 bfd_map_over_sections (abfd
, find_stabs_section
, & s
);
2905 /* Dump the any sections containing stabs debugging information. */
2908 dump_stabs (bfd
*abfd
)
2910 dump_stabs_section (abfd
, ".stab", ".stabstr");
2911 dump_stabs_section (abfd
, ".stab.excl", ".stab.exclstr");
2912 dump_stabs_section (abfd
, ".stab.index", ".stab.indexstr");
2915 dump_stabs_section (abfd
, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr");
2917 dump_stabs_section (abfd
, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
2921 dump_bfd_header (bfd
*abfd
)
2925 printf (_("architecture: %s, "),
2926 bfd_printable_arch_mach (bfd_get_arch (abfd
),
2927 bfd_get_mach (abfd
)));
2928 printf (_("flags 0x%08x:\n"), abfd
->flags
& ~BFD_FLAGS_FOR_BFD_USE_MASK
);
2930 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2931 PF (HAS_RELOC
, "HAS_RELOC");
2932 PF (EXEC_P
, "EXEC_P");
2933 PF (HAS_LINENO
, "HAS_LINENO");
2934 PF (HAS_DEBUG
, "HAS_DEBUG");
2935 PF (HAS_SYMS
, "HAS_SYMS");
2936 PF (HAS_LOCALS
, "HAS_LOCALS");
2937 PF (DYNAMIC
, "DYNAMIC");
2938 PF (WP_TEXT
, "WP_TEXT");
2939 PF (D_PAGED
, "D_PAGED");
2940 PF (BFD_IS_RELAXABLE
, "BFD_IS_RELAXABLE");
2941 printf (_("\nstart address 0x"));
2942 bfd_printf_vma (abfd
, abfd
->start_address
);
2948 dump_bfd_private_header (bfd
*abfd
)
2950 bfd_print_private_bfd_data (abfd
, stdout
);
2954 dump_target_specific (bfd
*abfd
)
2956 const struct objdump_private_desc
* const *desc
;
2957 struct objdump_private_option
*opt
;
2960 /* Find the desc. */
2961 for (desc
= objdump_private_vectors
; *desc
!= NULL
; desc
++)
2962 if ((*desc
)->filter (abfd
))
2967 non_fatal (_("option -P/--private not supported by this file"));
2971 /* Clear all options. */
2972 for (opt
= (*desc
)->options
; opt
->name
; opt
++)
2973 opt
->selected
= FALSE
;
2975 /* Decode options. */
2976 b
= dump_private_options
;
2979 e
= strchr (b
, ',');
2984 for (opt
= (*desc
)->options
; opt
->name
; opt
++)
2985 if (strcmp (opt
->name
, b
) == 0)
2987 opt
->selected
= TRUE
;
2990 if (opt
->name
== NULL
)
2991 non_fatal (_("target specific dump '%s' not supported"), b
);
3002 (*desc
)->dump (abfd
);
3005 /* Display a section in hexadecimal format with associated characters.
3006 Each line prefixed by the zero padded address. */
3009 dump_section (bfd
*abfd
, asection
*section
, void *dummy ATTRIBUTE_UNUSED
)
3011 bfd_byte
*data
= NULL
;
3012 bfd_size_type datasize
;
3013 bfd_vma addr_offset
;
3014 bfd_vma start_offset
;
3015 bfd_vma stop_offset
;
3016 unsigned int opb
= bfd_octets_per_byte (abfd
);
3017 /* Bytes per line. */
3018 const int onaline
= 16;
3023 if ((section
->flags
& SEC_HAS_CONTENTS
) == 0)
3026 if (! process_section_p (section
))
3029 if ((datasize
= bfd_section_size (abfd
, section
)) == 0)
3032 /* Compute the address range to display. */
3033 if (start_address
== (bfd_vma
) -1
3034 || start_address
< section
->vma
)
3037 start_offset
= start_address
- section
->vma
;
3039 if (stop_address
== (bfd_vma
) -1)
3040 stop_offset
= datasize
/ opb
;
3043 if (stop_address
< section
->vma
)
3046 stop_offset
= stop_address
- section
->vma
;
3048 if (stop_offset
> datasize
/ opb
)
3049 stop_offset
= datasize
/ opb
;
3052 if (start_offset
>= stop_offset
)
3055 printf (_("Contents of section %s:"), section
->name
);
3056 if (display_file_offsets
)
3057 printf (_(" (Starting at file offset: 0x%lx)"),
3058 (unsigned long) (section
->filepos
+ start_offset
));
3061 if (!bfd_get_full_section_contents (abfd
, section
, &data
))
3063 non_fatal (_("Reading section %s failed because: %s"),
3064 section
->name
, bfd_errmsg (bfd_get_error ()));
3070 bfd_sprintf_vma (abfd
, buf
, start_offset
+ section
->vma
);
3071 if (strlen (buf
) >= sizeof (buf
))
3075 while (buf
[count
] == '0' && buf
[count
+1] != '\0')
3077 count
= strlen (buf
) - count
;
3081 bfd_sprintf_vma (abfd
, buf
, stop_offset
+ section
->vma
- 1);
3082 if (strlen (buf
) >= sizeof (buf
))
3086 while (buf
[count
] == '0' && buf
[count
+1] != '\0')
3088 count
= strlen (buf
) - count
;
3092 for (addr_offset
= start_offset
;
3093 addr_offset
< stop_offset
; addr_offset
+= onaline
/ opb
)
3097 bfd_sprintf_vma (abfd
, buf
, (addr_offset
+ section
->vma
));
3098 count
= strlen (buf
);
3099 if ((size_t) count
>= sizeof (buf
))
3103 while (count
< width
)
3108 fputs (buf
+ count
- width
, stdout
);
3111 for (j
= addr_offset
* opb
;
3112 j
< addr_offset
* opb
+ onaline
; j
++)
3114 if (j
< stop_offset
* opb
)
3115 printf ("%02x", (unsigned) (data
[j
]));
3123 for (j
= addr_offset
* opb
;
3124 j
< addr_offset
* opb
+ onaline
; j
++)
3126 if (j
>= stop_offset
* opb
)
3129 printf ("%c", ISPRINT (data
[j
]) ? data
[j
] : '.');
3136 /* Actually display the various requested regions. */
3139 dump_data (bfd
*abfd
)
3141 bfd_map_over_sections (abfd
, dump_section
, NULL
);
3144 /* Should perhaps share code and display with nm? */
3147 dump_symbols (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_boolean dynamic
)
3156 max_count
= dynsymcount
;
3157 printf ("DYNAMIC SYMBOL TABLE:\n");
3162 max_count
= symcount
;
3163 printf ("SYMBOL TABLE:\n");
3167 printf (_("no symbols\n"));
3169 for (count
= 0; count
< max_count
; count
++)
3173 if (*current
== NULL
)
3174 printf (_("no information for symbol number %ld\n"), count
);
3176 else if ((cur_bfd
= bfd_asymbol_bfd (*current
)) == NULL
)
3177 printf (_("could not determine the type of symbol number %ld\n"),
3180 else if (process_section_p ((* current
)->section
)
3181 && (dump_special_syms
3182 || !bfd_is_target_special_symbol (cur_bfd
, *current
)))
3184 const char *name
= (*current
)->name
;
3186 if (do_demangle
&& name
!= NULL
&& *name
!= '\0')
3190 /* If we want to demangle the name, we demangle it
3191 here, and temporarily clobber it while calling
3192 bfd_print_symbol. FIXME: This is a gross hack. */
3193 alloc
= bfd_demangle (cur_bfd
, name
, DMGL_ANSI
| DMGL_PARAMS
);
3195 (*current
)->name
= alloc
;
3196 bfd_print_symbol (cur_bfd
, stdout
, *current
,
3197 bfd_print_symbol_all
);
3200 (*current
)->name
= name
;
3205 bfd_print_symbol (cur_bfd
, stdout
, *current
,
3206 bfd_print_symbol_all
);
3216 dump_reloc_set (bfd
*abfd
, asection
*sec
, arelent
**relpp
, long relcount
)
3219 char *last_filename
, *last_functionname
;
3220 unsigned int last_line
;
3221 unsigned int last_discriminator
;
3223 /* Get column headers lined up reasonably. */
3231 bfd_sprintf_vma (abfd
, buf
, (bfd_vma
) -1);
3232 width
= strlen (buf
) - 7;
3234 printf ("OFFSET %*s TYPE %*s VALUE \n", width
, "", 12, "");
3237 last_filename
= NULL
;
3238 last_functionname
= NULL
;
3240 last_discriminator
= 0;
3242 for (p
= relpp
; relcount
&& *p
!= NULL
; p
++, relcount
--)
3245 const char *filename
, *functionname
;
3246 unsigned int linenumber
;
3247 unsigned int discriminator
;
3248 const char *sym_name
;
3249 const char *section_name
;
3250 bfd_vma addend2
= 0;
3252 if (start_address
!= (bfd_vma
) -1
3253 && q
->address
< start_address
)
3255 if (stop_address
!= (bfd_vma
) -1
3256 && q
->address
> stop_address
)
3259 if (with_line_numbers
3261 && bfd_find_nearest_line_discriminator (abfd
, sec
, syms
, q
->address
,
3262 &filename
, &functionname
,
3263 &linenumber
, &discriminator
))
3265 if (functionname
!= NULL
3266 && (last_functionname
== NULL
3267 || strcmp (functionname
, last_functionname
) != 0))
3269 printf ("%s():\n", functionname
);
3270 if (last_functionname
!= NULL
)
3271 free (last_functionname
);
3272 last_functionname
= xstrdup (functionname
);
3276 && (linenumber
!= last_line
3277 || (filename
!= NULL
3278 && last_filename
!= NULL
3279 && filename_cmp (filename
, last_filename
) != 0)
3280 || (discriminator
!= last_discriminator
)))
3282 if (discriminator
> 0)
3283 printf ("%s:%u\n", filename
== NULL
? "???" : filename
, linenumber
);
3285 printf ("%s:%u (discriminator %u)\n", filename
== NULL
? "???" : filename
,
3286 linenumber
, discriminator
);
3287 last_line
= linenumber
;
3288 last_discriminator
= discriminator
;
3289 if (last_filename
!= NULL
)
3290 free (last_filename
);
3291 if (filename
== NULL
)
3292 last_filename
= NULL
;
3294 last_filename
= xstrdup (filename
);
3298 if (q
->sym_ptr_ptr
&& *q
->sym_ptr_ptr
)
3300 sym_name
= (*(q
->sym_ptr_ptr
))->name
;
3301 section_name
= (*(q
->sym_ptr_ptr
))->section
->name
;
3306 section_name
= NULL
;
3309 bfd_printf_vma (abfd
, q
->address
);
3310 if (q
->howto
== NULL
)
3311 printf (" *unknown* ");
3312 else if (q
->howto
->name
)
3314 const char *name
= q
->howto
->name
;
3316 /* R_SPARC_OLO10 relocations contain two addends.
3317 But because 'arelent' lacks enough storage to
3318 store them both, the 64-bit ELF Sparc backend
3319 records this as two relocations. One R_SPARC_LO10
3320 and one R_SPARC_13, both pointing to the same
3321 address. This is merely so that we have some
3322 place to store both addend fields.
3324 Undo this transformation, otherwise the output
3325 will be confusing. */
3326 if (abfd
->xvec
->flavour
== bfd_target_elf_flavour
3327 && elf_tdata(abfd
)->elf_header
->e_machine
== EM_SPARCV9
3329 && !strcmp (q
->howto
->name
, "R_SPARC_LO10"))
3331 arelent
*q2
= *(p
+ 1);
3334 && q
->address
== q2
->address
3335 && !strcmp (q2
->howto
->name
, "R_SPARC_13"))
3337 name
= "R_SPARC_OLO10";
3338 addend2
= q2
->addend
;
3342 printf (" %-16s ", name
);
3345 printf (" %-16d ", q
->howto
->type
);
3349 objdump_print_symname (abfd
, NULL
, *q
->sym_ptr_ptr
);
3353 if (section_name
== NULL
)
3354 section_name
= "*unknown*";
3355 printf ("[%s]", section_name
);
3360 bfd_signed_vma addend
= q
->addend
;
3368 bfd_printf_vma (abfd
, addend
);
3373 bfd_printf_vma (abfd
, addend2
);
3379 if (last_filename
!= NULL
)
3380 free (last_filename
);
3381 if (last_functionname
!= NULL
)
3382 free (last_functionname
);
3386 dump_relocs_in_section (bfd
*abfd
,
3388 void *dummy ATTRIBUTE_UNUSED
)
3394 if ( bfd_is_abs_section (section
)
3395 || bfd_is_und_section (section
)
3396 || bfd_is_com_section (section
)
3397 || (! process_section_p (section
))
3398 || ((section
->flags
& SEC_RELOC
) == 0))
3401 relsize
= bfd_get_reloc_upper_bound (abfd
, section
);
3403 bfd_fatal (bfd_get_filename (abfd
));
3405 printf ("RELOCATION RECORDS FOR [%s]:", section
->name
);
3409 printf (" (none)\n\n");
3413 if ((bfd_get_file_flags (abfd
) & (BFD_IN_MEMORY
| BFD_LINKER_CREATED
)) == 0
3414 && (ufile_ptr
) relsize
> bfd_get_file_size (abfd
))
3416 printf (" (too many: 0x%x)\n", section
->reloc_count
);
3417 bfd_set_error (bfd_error_file_truncated
);
3418 bfd_fatal (bfd_get_filename (abfd
));
3421 relpp
= (arelent
**) xmalloc (relsize
);
3422 relcount
= bfd_canonicalize_reloc (abfd
, section
, relpp
, syms
);
3427 non_fatal (_("failed to read relocs in: %s"), bfd_get_filename (abfd
));
3428 bfd_fatal (_("error message was"));
3430 else if (relcount
== 0)
3431 printf (" (none)\n\n");
3435 dump_reloc_set (abfd
, section
, relpp
, relcount
);
3442 dump_relocs (bfd
*abfd
)
3444 bfd_map_over_sections (abfd
, dump_relocs_in_section
, NULL
);
3448 dump_dynamic_relocs (bfd
*abfd
)
3454 relsize
= bfd_get_dynamic_reloc_upper_bound (abfd
);
3456 bfd_fatal (bfd_get_filename (abfd
));
3458 printf ("DYNAMIC RELOCATION RECORDS");
3461 printf (" (none)\n\n");
3464 relpp
= (arelent
**) xmalloc (relsize
);
3465 relcount
= bfd_canonicalize_dynamic_reloc (abfd
, relpp
, dynsyms
);
3468 bfd_fatal (bfd_get_filename (abfd
));
3469 else if (relcount
== 0)
3470 printf (" (none)\n\n");
3474 dump_reloc_set (abfd
, NULL
, relpp
, relcount
);
3481 /* Creates a table of paths, to search for source files. */
3484 add_include_path (const char *path
)
3488 include_path_count
++;
3489 include_paths
= (const char **)
3490 xrealloc (include_paths
, include_path_count
* sizeof (*include_paths
));
3491 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3492 if (path
[1] == ':' && path
[2] == 0)
3493 path
= concat (path
, ".", (const char *) 0);
3495 include_paths
[include_path_count
- 1] = path
;
3499 adjust_addresses (bfd
*abfd ATTRIBUTE_UNUSED
,
3503 if ((section
->flags
& SEC_DEBUGGING
) == 0)
3505 bfd_boolean
*has_reloc_p
= (bfd_boolean
*) arg
;
3506 section
->vma
+= adjust_section_vma
;
3508 section
->lma
+= adjust_section_vma
;
3512 /* Dump selected contents of ABFD. */
3515 dump_bfd (bfd
*abfd
)
3517 /* If we are adjusting section VMA's, change them all now. Changing
3518 the BFD information is a hack. However, we must do it, or
3519 bfd_find_nearest_line will not do the right thing. */
3520 if (adjust_section_vma
!= 0)
3522 bfd_boolean has_reloc
= (abfd
->flags
& HAS_RELOC
);
3523 bfd_map_over_sections (abfd
, adjust_addresses
, &has_reloc
);
3526 if (! dump_debugging_tags
&& ! suppress_bfd_header
)
3527 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd
),
3530 print_arelt_descr (stdout
, abfd
, TRUE
);
3531 if (dump_file_header
)
3532 dump_bfd_header (abfd
);
3533 if (dump_private_headers
)
3534 dump_bfd_private_header (abfd
);
3535 if (dump_private_options
!= NULL
)
3536 dump_target_specific (abfd
);
3537 if (! dump_debugging_tags
&& ! suppress_bfd_header
)
3544 || dump_dwarf_section_info
)
3545 syms
= slurp_symtab (abfd
);
3547 if (dump_section_headers
)
3548 dump_headers (abfd
);
3550 if (dump_dynamic_symtab
|| dump_dynamic_reloc_info
3551 || (disassemble
&& bfd_get_dynamic_symtab_upper_bound (abfd
) > 0))
3552 dynsyms
= slurp_dynamic_symtab (abfd
);
3555 synthcount
= bfd_get_synthetic_symtab (abfd
, symcount
, syms
,
3556 dynsymcount
, dynsyms
, &synthsyms
);
3562 dump_symbols (abfd
, FALSE
);
3563 if (dump_dynamic_symtab
)
3564 dump_symbols (abfd
, TRUE
);
3565 if (dump_dwarf_section_info
)
3567 if (dump_stab_section_info
)
3569 if (dump_reloc_info
&& ! disassemble
)
3571 if (dump_dynamic_reloc_info
&& ! disassemble
)
3572 dump_dynamic_relocs (abfd
);
3573 if (dump_section_contents
)
3576 disassemble_data (abfd
);
3582 dhandle
= read_debugging_info (abfd
, syms
, symcount
, TRUE
);
3583 if (dhandle
!= NULL
)
3585 if (!print_debugging_info (stdout
, dhandle
, abfd
, syms
,
3587 dump_debugging_tags
? TRUE
: FALSE
))
3589 non_fatal (_("%s: printing debugging information failed"),
3590 bfd_get_filename (abfd
));
3594 /* PR 6483: If there was no STABS or IEEE debug
3595 info in the file, try DWARF instead. */
3596 else if (! dump_dwarf_section_info
)
3598 dwarf_select_sections_all ();
3627 display_object_bfd (bfd
*abfd
)
3631 if (bfd_check_format_matches (abfd
, bfd_object
, &matching
))
3637 if (bfd_get_error () == bfd_error_file_ambiguously_recognized
)
3639 nonfatal (bfd_get_filename (abfd
));
3640 list_matching_formats (matching
);
3645 if (bfd_get_error () != bfd_error_file_not_recognized
)
3647 nonfatal (bfd_get_filename (abfd
));
3651 if (bfd_check_format_matches (abfd
, bfd_core
, &matching
))
3657 nonfatal (bfd_get_filename (abfd
));
3659 if (bfd_get_error () == bfd_error_file_ambiguously_recognized
)
3661 list_matching_formats (matching
);
3667 display_any_bfd (bfd
*file
, int level
)
3669 /* Decompress sections unless dumping the section contents. */
3670 if (!dump_section_contents
)
3671 file
->flags
|= BFD_DECOMPRESS
;
3673 /* If the file is an archive, process all of its elements. */
3674 if (bfd_check_format (file
, bfd_archive
))
3677 bfd
*last_arfile
= NULL
;
3680 printf (_("In archive %s:\n"), bfd_get_filename (file
));
3681 else if (level
> 100)
3683 /* Prevent corrupted files from spinning us into an
3684 infinite loop. 100 is an arbitrary heuristic. */
3685 fatal (_("Archive nesting is too deep"));
3689 printf (_("In nested archive %s:\n"), bfd_get_filename (file
));
3693 bfd_set_error (bfd_error_no_error
);
3695 arfile
= bfd_openr_next_archived_file (file
, arfile
);
3698 if (bfd_get_error () != bfd_error_no_more_archived_files
)
3699 nonfatal (bfd_get_filename (file
));
3703 display_any_bfd (arfile
, level
+ 1);
3705 if (last_arfile
!= NULL
)
3707 bfd_close (last_arfile
);
3708 /* PR 17512: file: ac585d01. */
3709 if (arfile
== last_arfile
)
3715 last_arfile
= arfile
;
3718 if (last_arfile
!= NULL
)
3719 bfd_close (last_arfile
);
3722 display_object_bfd (file
);
3726 display_file (char *filename
, char *target
, bfd_boolean last_file
)
3730 if (get_file_size (filename
) < 1)
3736 file
= bfd_openr (filename
, target
);
3739 nonfatal (filename
);
3743 display_any_bfd (file
, 0);
3745 /* This is an optimization to improve the speed of objdump, especially when
3746 dumping a file with lots of associated debug informatiom. Calling
3747 bfd_close on such a file can take a non-trivial amount of time as there
3748 are lots of lists to walk and buffers to free. This is only really
3749 necessary however if we are about to load another file and we need the
3750 memory back. Otherwise, if we are about to exit, then we can save (a lot
3751 of) time by only doing a quick close, and allowing the OS to reclaim the
3756 bfd_close_all_done (file
);
3760 main (int argc
, char **argv
)
3763 char *target
= default_target
;
3764 bfd_boolean seenflag
= FALSE
;
3766 #if defined (HAVE_SETLOCALE)
3767 #if defined (HAVE_LC_MESSAGES)
3768 setlocale (LC_MESSAGES
, "");
3770 setlocale (LC_CTYPE
, "");
3773 bindtextdomain (PACKAGE
, LOCALEDIR
);
3774 textdomain (PACKAGE
);
3776 program_name
= *argv
;
3777 xmalloc_set_program_name (program_name
);
3778 bfd_set_error_program_name (program_name
);
3780 START_PROGRESS (program_name
, 0);
3782 expandargv (&argc
, &argv
);
3785 set_default_bfd_target ();
3787 while ((c
= getopt_long (argc
, argv
,
3788 "pP:ib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::",
3789 long_options
, (int *) 0))
3795 break; /* We've been given a long option. */
3802 if (disassembler_options
)
3803 /* Ignore potential memory leak for now. */
3804 options
= concat (disassembler_options
, ",",
3805 optarg
, (const char *) NULL
);
3808 disassembler_options
= remove_whitespace_and_extra_commas (options
);
3815 display_file_offsets
= TRUE
;
3818 with_line_numbers
= TRUE
;
3827 enum demangling_styles style
;
3829 style
= cplus_demangle_name_to_style (optarg
);
3830 if (style
== unknown_demangling
)
3831 fatal (_("unknown demangling style `%s'"),
3834 cplus_demangle_set_style (style
);
3838 do_wide
= wide_output
= TRUE
;
3840 case OPTION_ADJUST_VMA
:
3841 adjust_section_vma
= parse_vma (optarg
, "--adjust-vma");
3843 case OPTION_START_ADDRESS
:
3844 start_address
= parse_vma (optarg
, "--start-address");
3845 if ((stop_address
!= (bfd_vma
) -1) && stop_address
<= start_address
)
3846 fatal (_("error: the start address should be before the end address"));
3848 case OPTION_STOP_ADDRESS
:
3849 stop_address
= parse_vma (optarg
, "--stop-address");
3850 if ((start_address
!= (bfd_vma
) -1) && stop_address
<= start_address
)
3851 fatal (_("error: the stop address should be after the start address"));
3855 prefix_length
= strlen (prefix
);
3856 /* Remove an unnecessary trailing '/' */
3857 while (IS_DIR_SEPARATOR (prefix
[prefix_length
- 1]))
3860 case OPTION_PREFIX_STRIP
:
3861 prefix_strip
= atoi (optarg
);
3862 if (prefix_strip
< 0)
3863 fatal (_("error: prefix strip must be non-negative"));
3865 case OPTION_INSN_WIDTH
:
3866 insn_width
= strtoul (optarg
, NULL
, 0);
3867 if (insn_width
<= 0)
3868 fatal (_("error: instruction width must be positive"));
3870 case OPTION_INLINES
:
3871 unwind_inlines
= TRUE
;
3874 if (strcmp (optarg
, "B") == 0)
3875 endian
= BFD_ENDIAN_BIG
;
3876 else if (strcmp (optarg
, "L") == 0)
3877 endian
= BFD_ENDIAN_LITTLE
;
3880 nonfatal (_("unrecognized -E option"));
3885 if (strncmp (optarg
, "big", strlen (optarg
)) == 0)
3886 endian
= BFD_ENDIAN_BIG
;
3887 else if (strncmp (optarg
, "little", strlen (optarg
)) == 0)
3888 endian
= BFD_ENDIAN_LITTLE
;
3891 non_fatal (_("unrecognized --endian type `%s'"), optarg
);
3898 dump_file_header
= TRUE
;
3902 formats_info
= TRUE
;
3906 add_include_path (optarg
);
3909 dump_private_headers
= TRUE
;
3913 dump_private_options
= optarg
;
3917 dump_private_headers
= TRUE
;
3919 dump_reloc_info
= TRUE
;
3920 dump_file_header
= TRUE
;
3921 dump_ar_hdrs
= TRUE
;
3922 dump_section_headers
= TRUE
;
3930 dump_dynamic_symtab
= TRUE
;
3938 disassemble_zeroes
= TRUE
;
3942 disassemble_all
= TRUE
;
3947 with_source_code
= TRUE
;
3956 dump_debugging_tags
= 1;
3961 dump_dwarf_section_info
= TRUE
;
3964 dwarf_select_sections_by_letters (optarg
);
3966 dwarf_select_sections_all ();
3969 dump_dwarf_section_info
= TRUE
;
3972 dwarf_select_sections_by_names (optarg
);
3974 dwarf_select_sections_all ();
3976 case OPTION_DWARF_DEPTH
:
3979 dwarf_cutoff_level
= strtoul (optarg
, & cp
, 0);
3982 case OPTION_DWARF_START
:
3985 dwarf_start_die
= strtoul (optarg
, & cp
, 0);
3986 suppress_bfd_header
= 1;
3989 case OPTION_DWARF_CHECK
:
3993 dump_stab_section_info
= TRUE
;
3997 dump_section_contents
= TRUE
;
4001 dump_reloc_info
= TRUE
;
4005 dump_dynamic_reloc_info
= TRUE
;
4009 dump_ar_hdrs
= TRUE
;
4013 dump_section_headers
= TRUE
;
4018 show_version
= TRUE
;
4024 /* No need to set seenflag or to break - usage() does not return. */
4031 print_version ("objdump");
4037 exit_status
= display_info ();
4041 display_file ("a.out", target
, TRUE
);
4043 for (; optind
< argc
;)
4045 display_file (argv
[optind
], target
, optind
== argc
- 1);
4052 END_PROGRESS (program_name
);