382ba35855cf9e06cba880c8d35cd8127d66b1b3
[deliverable/binutils-gdb.git] / binutils / objdump.c
1 /* objdump.c -- dump information about an object file.
2 Copyright (C) 1990-2019 Free Software Foundation, Inc.
3
4 This file is part of GNU Binutils.
5
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)
9 any later version.
10
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.
15
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. */
20
21
22 /* Objdump overview.
23
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.
28
29 The flow of execution is as follows:
30
31 1. Command line arguments are checked for control switches and the
32 information to be displayed is selected.
33
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.
37
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
40 called.
41
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.
45
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. */
50
51 #include "sysdep.h"
52 #include "bfd.h"
53 #include "elf-bfd.h"
54 #include "coff-bfd.h"
55 #include "progress.h"
56 #include "bucomm.h"
57 #include "elfcomm.h"
58 #include "dwarf.h"
59 #ifdef HAVE_LIBCTF
60 #include "ctf-api.h"
61 #endif
62 #include "getopt.h"
63 #include "safe-ctype.h"
64 #include "dis-asm.h"
65 #include "libiberty.h"
66 #include "demangle.h"
67 #include "filenames.h"
68 #include "debug.h"
69 #include "budbg.h"
70 #include "objdump.h"
71
72 #ifdef HAVE_MMAP
73 #include <sys/mman.h>
74 #endif
75
76 /* Internal headers for the ELF .stab-dump code - sorry. */
77 #define BYTES_IN_WORD 32
78 #include "aout/aout64.h"
79
80 /* Exit status. */
81 static int exit_status = 0;
82
83 static char *default_target = NULL; /* Default at runtime. */
84
85 /* The following variables are set based on arguments passed on the
86 command line. */
87 static int show_version = 0; /* Show the version number. */
88 static int dump_section_contents; /* -s */
89 static int dump_section_headers; /* -h */
90 static bfd_boolean dump_file_header; /* -f */
91 static int dump_symtab; /* -t */
92 static int dump_dynamic_symtab; /* -T */
93 static int dump_reloc_info; /* -r */
94 static int dump_dynamic_reloc_info; /* -R */
95 static int dump_ar_hdrs; /* -a */
96 static int dump_private_headers; /* -p */
97 static char *dump_private_options; /* -P */
98 static int prefix_addresses; /* --prefix-addresses */
99 static int with_line_numbers; /* -l */
100 static bfd_boolean with_source_code; /* -S */
101 static int show_raw_insn; /* --show-raw-insn */
102 static int dump_dwarf_section_info; /* --dwarf */
103 static int dump_stab_section_info; /* --stabs */
104 #ifdef HAVE_LIBCTF
105 static int dump_ctf_section_info; /* --ctf */
106 static char *dump_ctf_section_name;
107 static char *dump_ctf_parent_name; /* --ctf-parent */
108 #endif
109 static int do_demangle; /* -C, --demangle */
110 static bfd_boolean disassemble; /* -d */
111 static bfd_boolean disassemble_all; /* -D */
112 static int disassemble_zeroes; /* --disassemble-zeroes */
113 static bfd_boolean formats_info; /* -i */
114 static int wide_output; /* -w */
115 static int insn_width; /* --insn-width */
116 static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
117 static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
118 static int dump_debugging; /* --debugging */
119 static int dump_debugging_tags; /* --debugging-tags */
120 static int suppress_bfd_header;
121 static int dump_special_syms = 0; /* --special-syms */
122 static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
123 static int file_start_context = 0; /* --file-start-context */
124 static bfd_boolean display_file_offsets;/* -F */
125 static const char *prefix; /* --prefix */
126 static int prefix_strip; /* --prefix-strip */
127 static size_t prefix_length;
128 static bfd_boolean unwind_inlines; /* --inlines. */
129 static const char * disasm_sym; /* Disassembly start symbol. */
130
131 static int demangle_flags = DMGL_ANSI | DMGL_PARAMS;
132
133 /* A structure to record the sections mentioned in -j switches. */
134 struct only
135 {
136 const char * name; /* The name of the section. */
137 bfd_boolean seen; /* A flag to indicate that the section has been found in one or more input files. */
138 struct only * next; /* Pointer to the next structure in the list. */
139 };
140 /* Pointer to an array of 'only' structures.
141 This pointer is NULL if the -j switch has not been used. */
142 static struct only * only_list = NULL;
143
144 /* Variables for handling include file path table. */
145 static const char **include_paths;
146 static int include_path_count;
147
148 /* Extra info to pass to the section disassembler and address printing
149 function. */
150 struct objdump_disasm_info
151 {
152 bfd * abfd;
153 asection * sec;
154 bfd_boolean require_sec;
155 arelent ** dynrelbuf;
156 long dynrelcount;
157 disassembler_ftype disassemble_fn;
158 arelent * reloc;
159 const char * symbol;
160 };
161
162 /* Architecture to disassemble for, or default if NULL. */
163 static char *machine = NULL;
164
165 /* Target specific options to the disassembler. */
166 static char *disassembler_options = NULL;
167
168 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
169 static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
170
171 /* The symbol table. */
172 static asymbol **syms;
173
174 /* Number of symbols in `syms'. */
175 static long symcount = 0;
176
177 /* The sorted symbol table. */
178 static asymbol **sorted_syms;
179
180 /* Number of symbols in `sorted_syms'. */
181 static long sorted_symcount = 0;
182
183 /* The dynamic symbol table. */
184 static asymbol **dynsyms;
185
186 /* The synthetic symbol table. */
187 static asymbol *synthsyms;
188 static long synthcount = 0;
189
190 /* Number of symbols in `dynsyms'. */
191 static long dynsymcount = 0;
192
193 static bfd_byte *stabs;
194 static bfd_size_type stab_size;
195
196 static bfd_byte *strtab;
197 static bfd_size_type stabstr_size;
198
199 static bfd_boolean is_relocatable = FALSE;
200
201 /* Handlers for -P/--private. */
202 static const struct objdump_private_desc * const objdump_private_vectors[] =
203 {
204 OBJDUMP_PRIVATE_VECTORS
205 NULL
206 };
207 \f
208 static void usage (FILE *, int) ATTRIBUTE_NORETURN;
209 static void
210 usage (FILE *stream, int status)
211 {
212 fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name);
213 fprintf (stream, _(" Display information from object <file(s)>.\n"));
214 fprintf (stream, _(" At least one of the following switches must be given:\n"));
215 fprintf (stream, _("\
216 -a, --archive-headers Display archive header information\n\
217 -f, --file-headers Display the contents of the overall file header\n\
218 -p, --private-headers Display object format specific file header contents\n\
219 -P, --private=OPT,OPT... Display object format specific contents\n\
220 -h, --[section-]headers Display the contents of the section headers\n\
221 -x, --all-headers Display the contents of all headers\n\
222 -d, --disassemble Display assembler contents of executable sections\n\
223 -D, --disassemble-all Display assembler contents of all sections\n\
224 --disassemble=<sym> Display assembler contents from <sym>\n\
225 -S, --source Intermix source code with disassembly\n\
226 -s, --full-contents Display the full contents of all sections requested\n\
227 -g, --debugging Display debug information in object file\n\
228 -e, --debugging-tags Display debug information using ctags style\n\
229 -G, --stabs Display (in raw form) any STABS info in the file\n\
230 -W[lLiaprmfFsoRtUuTgAckK] or\n\
231 --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,\n\
232 =frames-interp,=str,=loc,=Ranges,=pubtypes,\n\
233 =gdb_index,=trace_info,=trace_abbrev,=trace_aranges,\n\
234 =addr,=cu_index,=links,=follow-links]\n\
235 Display DWARF info in the file\n"));
236 #ifdef HAVE_LIBCTF
237 fprintf (stream, _("\
238 --ctf=SECTION Display CTF info from SECTION\n"));
239 #endif
240 fprintf (stream, _("\
241 -t, --syms Display the contents of the symbol table(s)\n\
242 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
243 -r, --reloc Display the relocation entries in the file\n\
244 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
245 @<file> Read options from <file>\n\
246 -v, --version Display this program's version number\n\
247 -i, --info List object formats and architectures supported\n\
248 -H, --help Display this information\n\
249 "));
250 if (status != 2)
251 {
252 const struct objdump_private_desc * const *desc;
253
254 fprintf (stream, _("\n The following switches are optional:\n"));
255 fprintf (stream, _("\
256 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
257 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
258 -j, --section=NAME Only display information for section NAME\n\
259 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
260 -EB --endian=big Assume big endian format when disassembling\n\
261 -EL --endian=little Assume little endian format when disassembling\n\
262 --file-start-context Include context from start of file (with -S)\n\
263 -I, --include=DIR Add DIR to search list for source files\n\
264 -l, --line-numbers Include line numbers and filenames in output\n\
265 -F, --file-offsets Include file offsets when displaying information\n\
266 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
267 The STYLE, if specified, can be `auto', `gnu',\n\
268 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
269 or `gnat'\n\
270 --recurse-limit Enable a limit on recursion whilst demangling. [Default]\n\
271 --no-recurse-limit Disable a limit on recursion whilst demangling\n\
272 -w, --wide Format output for more than 80 columns\n\
273 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
274 --start-address=ADDR Only process data whose address is >= ADDR\n\
275 --stop-address=ADDR Only process data whose address is <= ADDR\n\
276 --prefix-addresses Print complete address alongside disassembly\n\
277 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
278 --insn-width=WIDTH Display WIDTH bytes on a single line for -d\n\
279 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
280 --special-syms Include special symbols in symbol dumps\n\
281 --inlines Print all inlines for source line (with -l)\n\
282 --prefix=PREFIX Add PREFIX to absolute paths for -S\n\
283 --prefix-strip=LEVEL Strip initial directory names for -S\n"));
284 fprintf (stream, _("\
285 --dwarf-depth=N Do not display DIEs at depth N or greater\n\
286 --dwarf-start=N Display DIEs starting with N, at the same depth\n\
287 or deeper\n\
288 --dwarf-check Make additional dwarf internal consistency checks.\
289 \n"));
290 #ifdef HAVE_LIBCTF
291 fprintf (stream, _("\
292 --ctf-parent=SECTION Use SECTION as the CTF parent\n\n"));
293 #endif
294 list_supported_targets (program_name, stream);
295 list_supported_architectures (program_name, stream);
296
297 disassembler_usage (stream);
298
299 if (objdump_private_vectors[0] != NULL)
300 {
301 fprintf (stream,
302 _("\nOptions supported for -P/--private switch:\n"));
303 for (desc = objdump_private_vectors; *desc != NULL; desc++)
304 (*desc)->help (stream);
305 }
306 }
307 if (REPORT_BUGS_TO[0] && status == 0)
308 fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
309 exit (status);
310 }
311
312 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
313 enum option_values
314 {
315 OPTION_ENDIAN=150,
316 OPTION_START_ADDRESS,
317 OPTION_STOP_ADDRESS,
318 OPTION_DWARF,
319 OPTION_PREFIX,
320 OPTION_PREFIX_STRIP,
321 OPTION_INSN_WIDTH,
322 OPTION_ADJUST_VMA,
323 OPTION_DWARF_DEPTH,
324 OPTION_DWARF_CHECK,
325 OPTION_DWARF_START,
326 OPTION_RECURSE_LIMIT,
327 OPTION_NO_RECURSE_LIMIT,
328 #ifdef HAVE_LIBCTF
329 OPTION_CTF,
330 OPTION_CTF_PARENT,
331 #endif
332 OPTION_INLINES
333 };
334
335 static struct option long_options[]=
336 {
337 {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA},
338 {"all-headers", no_argument, NULL, 'x'},
339 {"private-headers", no_argument, NULL, 'p'},
340 {"private", required_argument, NULL, 'P'},
341 {"architecture", required_argument, NULL, 'm'},
342 {"archive-headers", no_argument, NULL, 'a'},
343 {"debugging", no_argument, NULL, 'g'},
344 {"debugging-tags", no_argument, NULL, 'e'},
345 {"demangle", optional_argument, NULL, 'C'},
346 {"disassemble", optional_argument, NULL, 'd'},
347 {"disassemble-all", no_argument, NULL, 'D'},
348 {"disassembler-options", required_argument, NULL, 'M'},
349 {"disassemble-zeroes", no_argument, NULL, 'z'},
350 {"dynamic-reloc", no_argument, NULL, 'R'},
351 {"dynamic-syms", no_argument, NULL, 'T'},
352 {"endian", required_argument, NULL, OPTION_ENDIAN},
353 {"file-headers", no_argument, NULL, 'f'},
354 {"file-offsets", no_argument, NULL, 'F'},
355 {"file-start-context", no_argument, &file_start_context, 1},
356 {"full-contents", no_argument, NULL, 's'},
357 {"headers", no_argument, NULL, 'h'},
358 {"help", no_argument, NULL, 'H'},
359 {"info", no_argument, NULL, 'i'},
360 {"line-numbers", no_argument, NULL, 'l'},
361 {"no-show-raw-insn", no_argument, &show_raw_insn, -1},
362 {"prefix-addresses", no_argument, &prefix_addresses, 1},
363 {"recurse-limit", no_argument, NULL, OPTION_RECURSE_LIMIT},
364 {"recursion-limit", no_argument, NULL, OPTION_RECURSE_LIMIT},
365 {"no-recurse-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT},
366 {"no-recursion-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT},
367 {"reloc", no_argument, NULL, 'r'},
368 {"section", required_argument, NULL, 'j'},
369 {"section-headers", no_argument, NULL, 'h'},
370 {"show-raw-insn", no_argument, &show_raw_insn, 1},
371 {"source", no_argument, NULL, 'S'},
372 {"special-syms", no_argument, &dump_special_syms, 1},
373 {"include", required_argument, NULL, 'I'},
374 {"dwarf", optional_argument, NULL, OPTION_DWARF},
375 #ifdef HAVE_LIBCTF
376 {"ctf", required_argument, NULL, OPTION_CTF},
377 {"ctf-parent", required_argument, NULL, OPTION_CTF_PARENT},
378 #endif
379 {"stabs", no_argument, NULL, 'G'},
380 {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
381 {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
382 {"syms", no_argument, NULL, 't'},
383 {"target", required_argument, NULL, 'b'},
384 {"version", no_argument, NULL, 'V'},
385 {"wide", no_argument, NULL, 'w'},
386 {"prefix", required_argument, NULL, OPTION_PREFIX},
387 {"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP},
388 {"insn-width", required_argument, NULL, OPTION_INSN_WIDTH},
389 {"dwarf-depth", required_argument, 0, OPTION_DWARF_DEPTH},
390 {"dwarf-start", required_argument, 0, OPTION_DWARF_START},
391 {"dwarf-check", no_argument, 0, OPTION_DWARF_CHECK},
392 {"inlines", no_argument, 0, OPTION_INLINES},
393 {0, no_argument, 0, 0}
394 };
395 \f
396 static void
397 nonfatal (const char *msg)
398 {
399 bfd_nonfatal (msg);
400 exit_status = 1;
401 }
402
403 /* Returns a version of IN with any control characters
404 replaced by escape sequences. Uses a static buffer
405 if necessary. */
406
407 static const char *
408 sanitize_string (const char * in)
409 {
410 static char * buffer = NULL;
411 static size_t buffer_len = 0;
412 const char * original = in;
413 char * out;
414
415 /* Paranoia. */
416 if (in == NULL)
417 return "";
418
419 /* See if any conversion is necessary. In the majority
420 of cases it will not be needed. */
421 do
422 {
423 char c = *in++;
424
425 if (c == 0)
426 return original;
427
428 if (ISCNTRL (c))
429 break;
430 }
431 while (1);
432
433 /* Copy the input, translating as needed. */
434 in = original;
435 if (buffer_len < (strlen (in) * 2))
436 {
437 free ((void *) buffer);
438 buffer_len = strlen (in) * 2;
439 buffer = xmalloc (buffer_len + 1);
440 }
441
442 out = buffer;
443 do
444 {
445 char c = *in++;
446
447 if (c == 0)
448 break;
449
450 if (!ISCNTRL (c))
451 *out++ = c;
452 else
453 {
454 *out++ = '^';
455 *out++ = c + 0x40;
456 }
457 }
458 while (1);
459
460 *out = 0;
461 return buffer;
462 }
463
464 \f
465 /* Returns TRUE if the specified section should be dumped. */
466
467 static bfd_boolean
468 process_section_p (asection * section)
469 {
470 struct only * only;
471
472 if (only_list == NULL)
473 return TRUE;
474
475 for (only = only_list; only; only = only->next)
476 if (strcmp (only->name, section->name) == 0)
477 {
478 only->seen = TRUE;
479 return TRUE;
480 }
481
482 return FALSE;
483 }
484
485 /* Add an entry to the 'only' list. */
486
487 static void
488 add_only (char * name)
489 {
490 struct only * only;
491
492 /* First check to make sure that we do not
493 already have an entry for this name. */
494 for (only = only_list; only; only = only->next)
495 if (strcmp (only->name, name) == 0)
496 return;
497
498 only = xmalloc (sizeof * only);
499 only->name = name;
500 only->seen = FALSE;
501 only->next = only_list;
502 only_list = only;
503 }
504
505 /* Release the memory used by the 'only' list.
506 PR 11225: Issue a warning message for unseen sections.
507 Only do this if none of the sections were seen. This is mainly to support
508 tools like the GAS testsuite where an object file is dumped with a list of
509 generic section names known to be present in a range of different file
510 formats. */
511
512 static void
513 free_only_list (void)
514 {
515 bfd_boolean at_least_one_seen = FALSE;
516 struct only * only;
517 struct only * next;
518
519 if (only_list == NULL)
520 return;
521
522 for (only = only_list; only; only = only->next)
523 if (only->seen)
524 {
525 at_least_one_seen = TRUE;
526 break;
527 }
528
529 for (only = only_list; only; only = next)
530 {
531 if (! at_least_one_seen)
532 {
533 non_fatal (_("section '%s' mentioned in a -j option, "
534 "but not found in any input file"),
535 only->name);
536 exit_status = 1;
537 }
538 next = only->next;
539 free (only);
540 }
541 }
542
543 \f
544 static void
545 dump_section_header (bfd *abfd, asection *section, void *data)
546 {
547 char *comma = "";
548 unsigned int opb = bfd_octets_per_byte (abfd);
549 int longest_section_name = *((int *) data);
550
551 /* Ignore linker created section. See elfNN_ia64_object_p in
552 bfd/elfxx-ia64.c. */
553 if (section->flags & SEC_LINKER_CREATED)
554 return;
555
556 /* PR 10413: Skip sections that we are ignoring. */
557 if (! process_section_p (section))
558 return;
559
560 printf ("%3d %-*s %08lx ", section->index, longest_section_name,
561 sanitize_string (bfd_get_section_name (abfd, section)),
562 (unsigned long) bfd_section_size (abfd, section) / opb);
563 bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
564 printf (" ");
565 bfd_printf_vma (abfd, section->lma);
566 printf (" %08lx 2**%u", (unsigned long) section->filepos,
567 bfd_get_section_alignment (abfd, section));
568 if (! wide_output)
569 printf ("\n ");
570 printf (" ");
571
572 #define PF(x, y) \
573 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
574
575 PF (SEC_HAS_CONTENTS, "CONTENTS");
576 PF (SEC_ALLOC, "ALLOC");
577 PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
578 PF (SEC_LOAD, "LOAD");
579 PF (SEC_RELOC, "RELOC");
580 PF (SEC_READONLY, "READONLY");
581 PF (SEC_CODE, "CODE");
582 PF (SEC_DATA, "DATA");
583 PF (SEC_ROM, "ROM");
584 PF (SEC_DEBUGGING, "DEBUGGING");
585 PF (SEC_NEVER_LOAD, "NEVER_LOAD");
586 PF (SEC_EXCLUDE, "EXCLUDE");
587 PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
588 if (bfd_get_arch (abfd) == bfd_arch_tic54x)
589 {
590 PF (SEC_TIC54X_BLOCK, "BLOCK");
591 PF (SEC_TIC54X_CLINK, "CLINK");
592 }
593 PF (SEC_SMALL_DATA, "SMALL_DATA");
594 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
595 {
596 PF (SEC_COFF_SHARED, "SHARED");
597 PF (SEC_COFF_NOREAD, "NOREAD");
598 }
599 else if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
600 PF (SEC_ELF_PURECODE, "PURECODE");
601 PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
602 PF (SEC_GROUP, "GROUP");
603 if (bfd_get_arch (abfd) == bfd_arch_mep)
604 {
605 PF (SEC_MEP_VLIW, "VLIW");
606 }
607
608 if ((section->flags & SEC_LINK_ONCE) != 0)
609 {
610 const char *ls;
611 struct coff_comdat_info *comdat;
612
613 switch (section->flags & SEC_LINK_DUPLICATES)
614 {
615 default:
616 abort ();
617 case SEC_LINK_DUPLICATES_DISCARD:
618 ls = "LINK_ONCE_DISCARD";
619 break;
620 case SEC_LINK_DUPLICATES_ONE_ONLY:
621 ls = "LINK_ONCE_ONE_ONLY";
622 break;
623 case SEC_LINK_DUPLICATES_SAME_SIZE:
624 ls = "LINK_ONCE_SAME_SIZE";
625 break;
626 case SEC_LINK_DUPLICATES_SAME_CONTENTS:
627 ls = "LINK_ONCE_SAME_CONTENTS";
628 break;
629 }
630 printf ("%s%s", comma, ls);
631
632 comdat = bfd_coff_get_comdat_section (abfd, section);
633 if (comdat != NULL)
634 printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
635
636 comma = ", ";
637 }
638
639 printf ("\n");
640 #undef PF
641 }
642
643 /* Called on each SECTION in ABFD, update the int variable pointed to by
644 DATA which contains the string length of the longest section name. */
645
646 static void
647 find_longest_section_name (bfd *abfd, asection *section, void *data)
648 {
649 int *longest_so_far = (int *) data;
650 const char *name;
651 int len;
652
653 /* Ignore linker created section. */
654 if (section->flags & SEC_LINKER_CREATED)
655 return;
656
657 /* Skip sections that we are ignoring. */
658 if (! process_section_p (section))
659 return;
660
661 name = bfd_get_section_name (abfd, section);
662 len = (int) strlen (name);
663 if (len > *longest_so_far)
664 *longest_so_far = len;
665 }
666
667 static void
668 dump_headers (bfd *abfd)
669 {
670 /* The default width of 13 is just an arbitrary choice. */
671 int max_section_name_length = 13;
672 int bfd_vma_width;
673
674 #ifndef BFD64
675 bfd_vma_width = 10;
676 #else
677 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
678 if (bfd_get_arch_size (abfd) == 32)
679 bfd_vma_width = 10;
680 else
681 bfd_vma_width = 18;
682 #endif
683
684 printf (_("Sections:\n"));
685
686 if (wide_output)
687 bfd_map_over_sections (abfd, find_longest_section_name,
688 &max_section_name_length);
689
690 printf (_("Idx %-*s Size %-*s%-*sFile off Algn"),
691 max_section_name_length, "Name",
692 bfd_vma_width, "VMA",
693 bfd_vma_width, "LMA");
694
695 if (wide_output)
696 printf (_(" Flags"));
697 printf ("\n");
698
699 bfd_map_over_sections (abfd, dump_section_header,
700 &max_section_name_length);
701 }
702 \f
703 static asymbol **
704 slurp_symtab (bfd *abfd)
705 {
706 asymbol **sy = NULL;
707 long storage;
708
709 if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
710 {
711 symcount = 0;
712 return NULL;
713 }
714
715 storage = bfd_get_symtab_upper_bound (abfd);
716 if (storage < 0)
717 {
718 non_fatal (_("failed to read symbol table from: %s"), bfd_get_filename (abfd));
719 bfd_fatal (_("error message was"));
720 }
721 if (storage)
722 sy = (asymbol **) xmalloc (storage);
723
724 symcount = bfd_canonicalize_symtab (abfd, sy);
725 if (symcount < 0)
726 bfd_fatal (bfd_get_filename (abfd));
727 return sy;
728 }
729
730 /* Read in the dynamic symbols. */
731
732 static asymbol **
733 slurp_dynamic_symtab (bfd *abfd)
734 {
735 asymbol **sy = NULL;
736 long storage;
737
738 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
739 if (storage < 0)
740 {
741 if (!(bfd_get_file_flags (abfd) & DYNAMIC))
742 {
743 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd));
744 exit_status = 1;
745 dynsymcount = 0;
746 return NULL;
747 }
748
749 bfd_fatal (bfd_get_filename (abfd));
750 }
751 if (storage)
752 sy = (asymbol **) xmalloc (storage);
753
754 dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
755 if (dynsymcount < 0)
756 bfd_fatal (bfd_get_filename (abfd));
757 return sy;
758 }
759
760 /* Some symbol names are significant and should be kept in the
761 table of sorted symbol names, even if they are marked as
762 debugging/section symbols. */
763
764 static bfd_boolean
765 is_significant_symbol_name (const char * name)
766 {
767 return strncmp (name, ".plt", 4) == 0 || strcmp (name, ".got") == 0;
768 }
769
770 /* Filter out (in place) symbols that are useless for disassembly.
771 COUNT is the number of elements in SYMBOLS.
772 Return the number of useful symbols. */
773
774 static long
775 remove_useless_symbols (asymbol **symbols, long count)
776 {
777 asymbol **in_ptr = symbols, **out_ptr = symbols;
778
779 while (--count >= 0)
780 {
781 asymbol *sym = *in_ptr++;
782
783 if (sym->name == NULL || sym->name[0] == '\0')
784 continue;
785 if ((sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
786 && ! is_significant_symbol_name (sym->name))
787 continue;
788 if (bfd_is_und_section (sym->section)
789 || bfd_is_com_section (sym->section))
790 continue;
791
792 *out_ptr++ = sym;
793 }
794 return out_ptr - symbols;
795 }
796
797 /* Sort symbols into value order. */
798
799 static int
800 compare_symbols (const void *ap, const void *bp)
801 {
802 const asymbol *a = * (const asymbol **) ap;
803 const asymbol *b = * (const asymbol **) bp;
804 const char *an;
805 const char *bn;
806 size_t anl;
807 size_t bnl;
808 bfd_boolean af;
809 bfd_boolean bf;
810 flagword aflags;
811 flagword bflags;
812
813 if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
814 return 1;
815 else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
816 return -1;
817
818 if (a->section > b->section)
819 return 1;
820 else if (a->section < b->section)
821 return -1;
822
823 an = bfd_asymbol_name (a);
824 bn = bfd_asymbol_name (b);
825 anl = strlen (an);
826 bnl = strlen (bn);
827
828 /* The symbols gnu_compiled and gcc2_compiled convey no real
829 information, so put them after other symbols with the same value. */
830 af = (strstr (an, "gnu_compiled") != NULL
831 || strstr (an, "gcc2_compiled") != NULL);
832 bf = (strstr (bn, "gnu_compiled") != NULL
833 || strstr (bn, "gcc2_compiled") != NULL);
834
835 if (af && ! bf)
836 return 1;
837 if (! af && bf)
838 return -1;
839
840 /* We use a heuristic for the file name, to try to sort it after
841 more useful symbols. It may not work on non Unix systems, but it
842 doesn't really matter; the only difference is precisely which
843 symbol names get printed. */
844
845 #define file_symbol(s, sn, snl) \
846 (((s)->flags & BSF_FILE) != 0 \
847 || ((sn)[(snl) - 2] == '.' \
848 && ((sn)[(snl) - 1] == 'o' \
849 || (sn)[(snl) - 1] == 'a')))
850
851 af = file_symbol (a, an, anl);
852 bf = file_symbol (b, bn, bnl);
853
854 if (af && ! bf)
855 return 1;
856 if (! af && bf)
857 return -1;
858
859 /* Try to sort global symbols before local symbols before function
860 symbols before debugging symbols. */
861
862 aflags = a->flags;
863 bflags = b->flags;
864
865 if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
866 {
867 if ((aflags & BSF_DEBUGGING) != 0)
868 return 1;
869 else
870 return -1;
871 }
872 if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
873 {
874 if ((aflags & BSF_FUNCTION) != 0)
875 return -1;
876 else
877 return 1;
878 }
879 if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
880 {
881 if ((aflags & BSF_LOCAL) != 0)
882 return 1;
883 else
884 return -1;
885 }
886 if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
887 {
888 if ((aflags & BSF_GLOBAL) != 0)
889 return -1;
890 else
891 return 1;
892 }
893
894 if (bfd_get_flavour (bfd_asymbol_bfd (a)) == bfd_target_elf_flavour
895 && bfd_get_flavour (bfd_asymbol_bfd (b)) == bfd_target_elf_flavour)
896 {
897 bfd_vma asz, bsz;
898
899 asz = 0;
900 if ((a->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0)
901 asz = ((elf_symbol_type *) a)->internal_elf_sym.st_size;
902 bsz = 0;
903 if ((b->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0)
904 bsz = ((elf_symbol_type *) b)->internal_elf_sym.st_size;
905 if (asz != bsz)
906 return asz > bsz ? -1 : 1;
907 }
908
909 /* Symbols that start with '.' might be section names, so sort them
910 after symbols that don't start with '.'. */
911 if (an[0] == '.' && bn[0] != '.')
912 return 1;
913 if (an[0] != '.' && bn[0] == '.')
914 return -1;
915
916 /* Finally, if we can't distinguish them in any other way, try to
917 get consistent results by sorting the symbols by name. */
918 return strcmp (an, bn);
919 }
920
921 /* Sort relocs into address order. */
922
923 static int
924 compare_relocs (const void *ap, const void *bp)
925 {
926 const arelent *a = * (const arelent **) ap;
927 const arelent *b = * (const arelent **) bp;
928
929 if (a->address > b->address)
930 return 1;
931 else if (a->address < b->address)
932 return -1;
933
934 /* So that associated relocations tied to the same address show up
935 in the correct order, we don't do any further sorting. */
936 if (a > b)
937 return 1;
938 else if (a < b)
939 return -1;
940 else
941 return 0;
942 }
943
944 /* Print an address (VMA) to the output stream in INFO.
945 If SKIP_ZEROES is TRUE, omit leading zeroes. */
946
947 static void
948 objdump_print_value (bfd_vma vma, struct disassemble_info *inf,
949 bfd_boolean skip_zeroes)
950 {
951 char buf[30];
952 char *p;
953 struct objdump_disasm_info *aux;
954
955 aux = (struct objdump_disasm_info *) inf->application_data;
956 bfd_sprintf_vma (aux->abfd, buf, vma);
957 if (! skip_zeroes)
958 p = buf;
959 else
960 {
961 for (p = buf; *p == '0'; ++p)
962 ;
963 if (*p == '\0')
964 --p;
965 }
966 (*inf->fprintf_func) (inf->stream, "%s", p);
967 }
968
969 /* Print the name of a symbol. */
970
971 static void
972 objdump_print_symname (bfd *abfd, struct disassemble_info *inf,
973 asymbol *sym)
974 {
975 char *alloc;
976 const char *name, *version_string = NULL;
977 bfd_boolean hidden = FALSE;
978
979 alloc = NULL;
980 name = bfd_asymbol_name (sym);
981 if (do_demangle && name[0] != '\0')
982 {
983 /* Demangle the name. */
984 alloc = bfd_demangle (abfd, name, demangle_flags);
985 if (alloc != NULL)
986 name = alloc;
987 }
988
989 if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0)
990 version_string = bfd_get_symbol_version_string (abfd, sym, &hidden);
991
992 if (bfd_is_und_section (bfd_get_section (sym)))
993 hidden = TRUE;
994
995 name = sanitize_string (name);
996
997 if (inf != NULL)
998 {
999 (*inf->fprintf_func) (inf->stream, "%s", name);
1000 if (version_string && *version_string != '\0')
1001 (*inf->fprintf_func) (inf->stream, hidden ? "@%s" : "@@%s",
1002 version_string);
1003 }
1004 else
1005 {
1006 printf ("%s", name);
1007 if (version_string && *version_string != '\0')
1008 printf (hidden ? "@%s" : "@@%s", version_string);
1009 }
1010
1011 if (alloc != NULL)
1012 free (alloc);
1013 }
1014
1015 static inline bfd_boolean
1016 sym_ok (bfd_boolean want_section,
1017 bfd * abfd ATTRIBUTE_UNUSED,
1018 long place,
1019 asection * sec,
1020 struct disassemble_info * inf)
1021 {
1022 if (want_section)
1023 {
1024 /* Note - we cannot just compare section pointers because they could
1025 be different, but the same... Ie the symbol that we are trying to
1026 find could have come from a separate debug info file. Under such
1027 circumstances the symbol will be associated with a section in the
1028 debug info file, whilst the section we want is in a normal file.
1029 So the section pointers will be different, but the section names
1030 will be the same. */
1031 if (strcmp (bfd_section_name (abfd, sorted_syms[place]->section),
1032 bfd_section_name (abfd, sec)) != 0)
1033 return FALSE;
1034 }
1035
1036 return inf->symbol_is_valid (sorted_syms[place], inf);
1037 }
1038
1039 /* Locate a symbol given a bfd and a section (from INFO->application_data),
1040 and a VMA. If INFO->application_data->require_sec is TRUE, then always
1041 require the symbol to be in the section. Returns NULL if there is no
1042 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
1043 of the symbol in sorted_syms. */
1044
1045 static asymbol *
1046 find_symbol_for_address (bfd_vma vma,
1047 struct disassemble_info *inf,
1048 long *place)
1049 {
1050 /* @@ Would it speed things up to cache the last two symbols returned,
1051 and maybe their address ranges? For many processors, only one memory
1052 operand can be present at a time, so the 2-entry cache wouldn't be
1053 constantly churned by code doing heavy memory accesses. */
1054
1055 /* Indices in `sorted_syms'. */
1056 long min = 0;
1057 long max_count = sorted_symcount;
1058 long thisplace;
1059 struct objdump_disasm_info *aux;
1060 bfd *abfd;
1061 asection *sec;
1062 unsigned int opb;
1063 bfd_boolean want_section;
1064 long rel_count;
1065
1066 if (sorted_symcount < 1)
1067 return NULL;
1068
1069 aux = (struct objdump_disasm_info *) inf->application_data;
1070 abfd = aux->abfd;
1071 sec = aux->sec;
1072 opb = inf->octets_per_byte;
1073
1074 /* Perform a binary search looking for the closest symbol to the
1075 required value. We are searching the range (min, max_count]. */
1076 while (min + 1 < max_count)
1077 {
1078 asymbol *sym;
1079
1080 thisplace = (max_count + min) / 2;
1081 sym = sorted_syms[thisplace];
1082
1083 if (bfd_asymbol_value (sym) > vma)
1084 max_count = thisplace;
1085 else if (bfd_asymbol_value (sym) < vma)
1086 min = thisplace;
1087 else
1088 {
1089 min = thisplace;
1090 break;
1091 }
1092 }
1093
1094 /* The symbol we want is now in min, the low end of the range we
1095 were searching. If there are several symbols with the same
1096 value, we want the first (non-section/non-debugging) one. */
1097 thisplace = min;
1098 while (thisplace > 0
1099 && (bfd_asymbol_value (sorted_syms[thisplace])
1100 == bfd_asymbol_value (sorted_syms[thisplace - 1]))
1101 && ((sorted_syms[thisplace - 1]->flags
1102 & (BSF_SECTION_SYM | BSF_DEBUGGING)) == 0)
1103 )
1104 --thisplace;
1105
1106 /* Prefer a symbol in the current section if we have multple symbols
1107 with the same value, as can occur with overlays or zero size
1108 sections. */
1109 min = thisplace;
1110 while (min < max_count
1111 && (bfd_asymbol_value (sorted_syms[min])
1112 == bfd_asymbol_value (sorted_syms[thisplace])))
1113 {
1114 if (sym_ok (TRUE, abfd, min, sec, inf))
1115 {
1116 thisplace = min;
1117
1118 if (place != NULL)
1119 *place = thisplace;
1120
1121 return sorted_syms[thisplace];
1122 }
1123 ++min;
1124 }
1125
1126 /* If the file is relocatable, and the symbol could be from this
1127 section, prefer a symbol from this section over symbols from
1128 others, even if the other symbol's value might be closer.
1129
1130 Note that this may be wrong for some symbol references if the
1131 sections have overlapping memory ranges, but in that case there's
1132 no way to tell what's desired without looking at the relocation
1133 table.
1134
1135 Also give the target a chance to reject symbols. */
1136 want_section = (aux->require_sec
1137 || ((abfd->flags & HAS_RELOC) != 0
1138 && vma >= bfd_get_section_vma (abfd, sec)
1139 && vma < (bfd_get_section_vma (abfd, sec)
1140 + bfd_section_size (abfd, sec) / opb)));
1141
1142 if (! sym_ok (want_section, abfd, thisplace, sec, inf))
1143 {
1144 long i;
1145 long newplace = sorted_symcount;
1146
1147 for (i = min - 1; i >= 0; i--)
1148 {
1149 if (sym_ok (want_section, abfd, i, sec, inf))
1150 {
1151 if (newplace == sorted_symcount)
1152 newplace = i;
1153
1154 if (bfd_asymbol_value (sorted_syms[i])
1155 != bfd_asymbol_value (sorted_syms[newplace]))
1156 break;
1157
1158 /* Remember this symbol and keep searching until we reach
1159 an earlier address. */
1160 newplace = i;
1161 }
1162 }
1163
1164 if (newplace != sorted_symcount)
1165 thisplace = newplace;
1166 else
1167 {
1168 /* We didn't find a good symbol with a smaller value.
1169 Look for one with a larger value. */
1170 for (i = thisplace + 1; i < sorted_symcount; i++)
1171 {
1172 if (sym_ok (want_section, abfd, i, sec, inf))
1173 {
1174 thisplace = i;
1175 break;
1176 }
1177 }
1178 }
1179
1180 if (! sym_ok (want_section, abfd, thisplace, sec, inf))
1181 /* There is no suitable symbol. */
1182 return NULL;
1183 }
1184
1185 /* If we have not found an exact match for the specified address
1186 and we have dynamic relocations available, then we can produce
1187 a better result by matching a relocation to the address and
1188 using the symbol associated with that relocation. */
1189 rel_count = aux->dynrelcount;
1190 if (!want_section
1191 && sorted_syms[thisplace]->value != vma
1192 && rel_count > 0
1193 && aux->dynrelbuf != NULL
1194 && aux->dynrelbuf[0]->address <= vma
1195 && aux->dynrelbuf[rel_count - 1]->address >= vma
1196 /* If we have matched a synthetic symbol, then stick with that. */
1197 && (sorted_syms[thisplace]->flags & BSF_SYNTHETIC) == 0)
1198 {
1199 arelent ** rel_low;
1200 arelent ** rel_high;
1201
1202 rel_low = aux->dynrelbuf;
1203 rel_high = rel_low + rel_count - 1;
1204 while (rel_low <= rel_high)
1205 {
1206 arelent **rel_mid = &rel_low[(rel_high - rel_low) / 2];
1207 arelent * rel = *rel_mid;
1208
1209 if (rel->address == vma)
1210 {
1211 /* Absolute relocations do not provide a more helpful
1212 symbolic address. Find a non-absolute relocation
1213 with the same address. */
1214 arelent **rel_vma = rel_mid;
1215 for (rel_mid--;
1216 rel_mid >= rel_low && rel_mid[0]->address == vma;
1217 rel_mid--)
1218 rel_vma = rel_mid;
1219
1220 for (; rel_vma <= rel_high && rel_vma[0]->address == vma;
1221 rel_vma++)
1222 {
1223 rel = *rel_vma;
1224 if (rel->sym_ptr_ptr != NULL
1225 && ! bfd_is_abs_section ((* rel->sym_ptr_ptr)->section))
1226 {
1227 if (place != NULL)
1228 * place = thisplace;
1229 return * rel->sym_ptr_ptr;
1230 }
1231 }
1232 break;
1233 }
1234
1235 if (vma < rel->address)
1236 rel_high = rel_mid;
1237 else if (vma >= rel_mid[1]->address)
1238 rel_low = rel_mid + 1;
1239 else
1240 break;
1241 }
1242 }
1243
1244 if (place != NULL)
1245 *place = thisplace;
1246
1247 return sorted_syms[thisplace];
1248 }
1249
1250 /* Print an address and the offset to the nearest symbol. */
1251
1252 static void
1253 objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym,
1254 bfd_vma vma, struct disassemble_info *inf,
1255 bfd_boolean skip_zeroes)
1256 {
1257 objdump_print_value (vma, inf, skip_zeroes);
1258
1259 if (sym == NULL)
1260 {
1261 bfd_vma secaddr;
1262
1263 (*inf->fprintf_func) (inf->stream, " <%s",
1264 sanitize_string (bfd_get_section_name (abfd, sec)));
1265 secaddr = bfd_get_section_vma (abfd, sec);
1266 if (vma < secaddr)
1267 {
1268 (*inf->fprintf_func) (inf->stream, "-0x");
1269 objdump_print_value (secaddr - vma, inf, TRUE);
1270 }
1271 else if (vma > secaddr)
1272 {
1273 (*inf->fprintf_func) (inf->stream, "+0x");
1274 objdump_print_value (vma - secaddr, inf, TRUE);
1275 }
1276 (*inf->fprintf_func) (inf->stream, ">");
1277 }
1278 else
1279 {
1280 (*inf->fprintf_func) (inf->stream, " <");
1281
1282 objdump_print_symname (abfd, inf, sym);
1283
1284 if (bfd_asymbol_value (sym) == vma)
1285 ;
1286 /* Undefined symbols in an executables and dynamic objects do not have
1287 a value associated with them, so it does not make sense to display
1288 an offset relative to them. Normally we would not be provided with
1289 this kind of symbol, but the target backend might choose to do so,
1290 and the code in find_symbol_for_address might return an as yet
1291 unresolved symbol associated with a dynamic reloc. */
1292 else if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC))
1293 && bfd_is_und_section (sym->section))
1294 ;
1295 else if (bfd_asymbol_value (sym) > vma)
1296 {
1297 (*inf->fprintf_func) (inf->stream, "-0x");
1298 objdump_print_value (bfd_asymbol_value (sym) - vma, inf, TRUE);
1299 }
1300 else if (vma > bfd_asymbol_value (sym))
1301 {
1302 (*inf->fprintf_func) (inf->stream, "+0x");
1303 objdump_print_value (vma - bfd_asymbol_value (sym), inf, TRUE);
1304 }
1305
1306 (*inf->fprintf_func) (inf->stream, ">");
1307 }
1308
1309 if (display_file_offsets)
1310 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
1311 (long int)(sec->filepos + (vma - sec->vma)));
1312 }
1313
1314 /* Print an address (VMA), symbolically if possible.
1315 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
1316
1317 static void
1318 objdump_print_addr (bfd_vma vma,
1319 struct disassemble_info *inf,
1320 bfd_boolean skip_zeroes)
1321 {
1322 struct objdump_disasm_info *aux;
1323 asymbol *sym = NULL;
1324 bfd_boolean skip_find = FALSE;
1325
1326 aux = (struct objdump_disasm_info *) inf->application_data;
1327
1328 if (sorted_symcount < 1)
1329 {
1330 (*inf->fprintf_func) (inf->stream, "0x");
1331 objdump_print_value (vma, inf, skip_zeroes);
1332
1333 if (display_file_offsets)
1334 inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
1335 (long int)(aux->sec->filepos + (vma - aux->sec->vma)));
1336 return;
1337 }
1338
1339 if (aux->reloc != NULL
1340 && aux->reloc->sym_ptr_ptr != NULL
1341 && * aux->reloc->sym_ptr_ptr != NULL)
1342 {
1343 sym = * aux->reloc->sym_ptr_ptr;
1344
1345 /* Adjust the vma to the reloc. */
1346 vma += bfd_asymbol_value (sym);
1347
1348 if (bfd_is_und_section (bfd_get_section (sym)))
1349 skip_find = TRUE;
1350 }
1351
1352 if (!skip_find)
1353 sym = find_symbol_for_address (vma, inf, NULL);
1354
1355 objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, inf,
1356 skip_zeroes);
1357 }
1358
1359 /* Print VMA to INFO. This function is passed to the disassembler
1360 routine. */
1361
1362 static void
1363 objdump_print_address (bfd_vma vma, struct disassemble_info *inf)
1364 {
1365 objdump_print_addr (vma, inf, ! prefix_addresses);
1366 }
1367
1368 /* Determine if the given address has a symbol associated with it. */
1369
1370 static int
1371 objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * inf)
1372 {
1373 asymbol * sym;
1374
1375 sym = find_symbol_for_address (vma, inf, NULL);
1376
1377 return (sym != NULL && (bfd_asymbol_value (sym) == vma));
1378 }
1379
1380 /* Hold the last function name and the last line number we displayed
1381 in a disassembly. */
1382
1383 static char *prev_functionname;
1384 static unsigned int prev_line;
1385 static unsigned int prev_discriminator;
1386
1387 /* We keep a list of all files that we have seen when doing a
1388 disassembly with source, so that we know how much of the file to
1389 display. This can be important for inlined functions. */
1390
1391 struct print_file_list
1392 {
1393 struct print_file_list *next;
1394 const char *filename;
1395 const char *modname;
1396 const char *map;
1397 size_t mapsize;
1398 const char **linemap;
1399 unsigned maxline;
1400 unsigned last_line;
1401 unsigned max_printed;
1402 int first;
1403 };
1404
1405 static struct print_file_list *print_files;
1406
1407 /* The number of preceding context lines to show when we start
1408 displaying a file for the first time. */
1409
1410 #define SHOW_PRECEDING_CONTEXT_LINES (5)
1411
1412 /* Read a complete file into memory. */
1413
1414 static const char *
1415 slurp_file (const char *fn, size_t *size, struct stat *fst)
1416 {
1417 #ifdef HAVE_MMAP
1418 int ps = getpagesize ();
1419 size_t msize;
1420 #endif
1421 const char *map;
1422 int fd = open (fn, O_RDONLY | O_BINARY);
1423
1424 if (fd < 0)
1425 return NULL;
1426 if (fstat (fd, fst) < 0)
1427 {
1428 close (fd);
1429 return NULL;
1430 }
1431 *size = fst->st_size;
1432 #ifdef HAVE_MMAP
1433 msize = (*size + ps - 1) & ~(ps - 1);
1434 map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0);
1435 if (map != (char *) -1L)
1436 {
1437 close (fd);
1438 return map;
1439 }
1440 #endif
1441 map = (const char *) malloc (*size);
1442 if (!map || (size_t) read (fd, (char *) map, *size) != *size)
1443 {
1444 free ((void *) map);
1445 map = NULL;
1446 }
1447 close (fd);
1448 return map;
1449 }
1450
1451 #define line_map_decrease 5
1452
1453 /* Precompute array of lines for a mapped file. */
1454
1455 static const char **
1456 index_file (const char *map, size_t size, unsigned int *maxline)
1457 {
1458 const char *p, *lstart, *end;
1459 int chars_per_line = 45; /* First iteration will use 40. */
1460 unsigned int lineno;
1461 const char **linemap = NULL;
1462 unsigned long line_map_size = 0;
1463
1464 lineno = 0;
1465 lstart = map;
1466 end = map + size;
1467
1468 for (p = map; p < end; p++)
1469 {
1470 if (*p == '\n')
1471 {
1472 if (p + 1 < end && p[1] == '\r')
1473 p++;
1474 }
1475 else if (*p == '\r')
1476 {
1477 if (p + 1 < end && p[1] == '\n')
1478 p++;
1479 }
1480 else
1481 continue;
1482
1483 /* End of line found. */
1484
1485 if (linemap == NULL || line_map_size < lineno + 1)
1486 {
1487 unsigned long newsize;
1488
1489 chars_per_line -= line_map_decrease;
1490 if (chars_per_line <= 1)
1491 chars_per_line = 1;
1492 line_map_size = size / chars_per_line + 1;
1493 if (line_map_size < lineno + 1)
1494 line_map_size = lineno + 1;
1495 newsize = line_map_size * sizeof (char *);
1496 linemap = (const char **) xrealloc (linemap, newsize);
1497 }
1498
1499 linemap[lineno++] = lstart;
1500 lstart = p + 1;
1501 }
1502
1503 *maxline = lineno;
1504 return linemap;
1505 }
1506
1507 /* Tries to open MODNAME, and if successful adds a node to print_files
1508 linked list and returns that node. Returns NULL on failure. */
1509
1510 static struct print_file_list *
1511 try_print_file_open (const char *origname, const char *modname, struct stat *fst)
1512 {
1513 struct print_file_list *p;
1514
1515 p = (struct print_file_list *) xmalloc (sizeof (struct print_file_list));
1516
1517 p->map = slurp_file (modname, &p->mapsize, fst);
1518 if (p->map == NULL)
1519 {
1520 free (p);
1521 return NULL;
1522 }
1523
1524 p->linemap = index_file (p->map, p->mapsize, &p->maxline);
1525 p->last_line = 0;
1526 p->max_printed = 0;
1527 p->filename = origname;
1528 p->modname = modname;
1529 p->next = print_files;
1530 p->first = 1;
1531 print_files = p;
1532 return p;
1533 }
1534
1535 /* If the source file, as described in the symtab, is not found
1536 try to locate it in one of the paths specified with -I
1537 If found, add location to print_files linked list. */
1538
1539 static struct print_file_list *
1540 update_source_path (const char *filename, bfd *abfd)
1541 {
1542 struct print_file_list *p;
1543 const char *fname;
1544 struct stat fst;
1545 int i;
1546
1547 p = try_print_file_open (filename, filename, &fst);
1548 if (p == NULL)
1549 {
1550 if (include_path_count == 0)
1551 return NULL;
1552
1553 /* Get the name of the file. */
1554 fname = lbasename (filename);
1555
1556 /* If file exists under a new path, we need to add it to the list
1557 so that show_line knows about it. */
1558 for (i = 0; i < include_path_count; i++)
1559 {
1560 char *modname = concat (include_paths[i], "/", fname,
1561 (const char *) 0);
1562
1563 p = try_print_file_open (filename, modname, &fst);
1564 if (p)
1565 break;
1566
1567 free (modname);
1568 }
1569 }
1570
1571 if (p != NULL)
1572 {
1573 long mtime = bfd_get_mtime (abfd);
1574
1575 if (fst.st_mtime > mtime)
1576 warn (_("source file %s is more recent than object file\n"),
1577 filename);
1578 }
1579
1580 return p;
1581 }
1582
1583 /* Print a source file line. */
1584
1585 static void
1586 print_line (struct print_file_list *p, unsigned int linenum)
1587 {
1588 const char *l;
1589 size_t len;
1590
1591 --linenum;
1592 if (linenum >= p->maxline)
1593 return;
1594 l = p->linemap [linenum];
1595 /* Test fwrite return value to quiet glibc warning. */
1596 len = strcspn (l, "\n\r");
1597 if (len == 0 || fwrite (l, len, 1, stdout) == 1)
1598 putchar ('\n');
1599 }
1600
1601 /* Print a range of source code lines. */
1602
1603 static void
1604 dump_lines (struct print_file_list *p, unsigned int start, unsigned int end)
1605 {
1606 if (p->map == NULL)
1607 return;
1608 while (start <= end)
1609 {
1610 print_line (p, start);
1611 start++;
1612 }
1613 }
1614
1615 /* Show the line number, or the source line, in a disassembly
1616 listing. */
1617
1618 static void
1619 show_line (bfd *abfd, asection *section, bfd_vma addr_offset)
1620 {
1621 const char *filename;
1622 const char *functionname;
1623 unsigned int linenumber;
1624 unsigned int discriminator;
1625 bfd_boolean reloc;
1626 char *path = NULL;
1627
1628 if (! with_line_numbers && ! with_source_code)
1629 return;
1630
1631 if (! bfd_find_nearest_line_discriminator (abfd, section, syms, addr_offset,
1632 &filename, &functionname,
1633 &linenumber, &discriminator))
1634 return;
1635
1636 if (filename != NULL && *filename == '\0')
1637 filename = NULL;
1638 if (functionname != NULL && *functionname == '\0')
1639 functionname = NULL;
1640
1641 if (filename
1642 && IS_ABSOLUTE_PATH (filename)
1643 && prefix)
1644 {
1645 char *path_up;
1646 const char *fname = filename;
1647
1648 path = xmalloc (prefix_length + PATH_MAX + 1);
1649
1650 if (prefix_length)
1651 memcpy (path, prefix, prefix_length);
1652 path_up = path + prefix_length;
1653
1654 /* Build relocated filename, stripping off leading directories
1655 from the initial filename if requested. */
1656 if (prefix_strip > 0)
1657 {
1658 int level = 0;
1659 const char *s;
1660
1661 /* Skip selected directory levels. */
1662 for (s = fname + 1; *s != '\0' && level < prefix_strip; s++)
1663 if (IS_DIR_SEPARATOR(*s))
1664 {
1665 fname = s;
1666 level++;
1667 }
1668 }
1669
1670 /* Update complete filename. */
1671 strncpy (path_up, fname, PATH_MAX);
1672 path_up[PATH_MAX] = '\0';
1673
1674 filename = path;
1675 reloc = TRUE;
1676 }
1677 else
1678 reloc = FALSE;
1679
1680 if (with_line_numbers)
1681 {
1682 if (functionname != NULL
1683 && (prev_functionname == NULL
1684 || strcmp (functionname, prev_functionname) != 0))
1685 {
1686 printf ("%s():\n", sanitize_string (functionname));
1687 prev_line = -1;
1688 }
1689 if (linenumber > 0
1690 && (linenumber != prev_line
1691 || discriminator != prev_discriminator))
1692 {
1693 if (discriminator > 0)
1694 printf ("%s:%u (discriminator %u)\n",
1695 filename == NULL ? "???" : sanitize_string (filename),
1696 linenumber, discriminator);
1697 else
1698 printf ("%s:%u\n", filename == NULL
1699 ? "???" : sanitize_string (filename),
1700 linenumber);
1701 }
1702 if (unwind_inlines)
1703 {
1704 const char *filename2;
1705 const char *functionname2;
1706 unsigned line2;
1707
1708 while (bfd_find_inliner_info (abfd, &filename2, &functionname2,
1709 &line2))
1710 {
1711 printf ("inlined by %s:%u",
1712 sanitize_string (filename2), line2);
1713 printf (" (%s)\n", sanitize_string (functionname2));
1714 }
1715 }
1716 }
1717
1718 if (with_source_code
1719 && filename != NULL
1720 && linenumber > 0)
1721 {
1722 struct print_file_list **pp, *p;
1723 unsigned l;
1724
1725 for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
1726 if (filename_cmp ((*pp)->filename, filename) == 0)
1727 break;
1728 p = *pp;
1729
1730 if (p == NULL)
1731 {
1732 if (reloc)
1733 filename = xstrdup (filename);
1734 p = update_source_path (filename, abfd);
1735 }
1736
1737 if (p != NULL && linenumber != p->last_line)
1738 {
1739 if (file_start_context && p->first)
1740 l = 1;
1741 else
1742 {
1743 l = linenumber - SHOW_PRECEDING_CONTEXT_LINES;
1744 if (l >= linenumber)
1745 l = 1;
1746 if (p->max_printed >= l)
1747 {
1748 if (p->max_printed < linenumber)
1749 l = p->max_printed + 1;
1750 else
1751 l = linenumber;
1752 }
1753 }
1754 dump_lines (p, l, linenumber);
1755 if (p->max_printed < linenumber)
1756 p->max_printed = linenumber;
1757 p->last_line = linenumber;
1758 p->first = 0;
1759 }
1760 }
1761
1762 if (functionname != NULL
1763 && (prev_functionname == NULL
1764 || strcmp (functionname, prev_functionname) != 0))
1765 {
1766 if (prev_functionname != NULL)
1767 free (prev_functionname);
1768 prev_functionname = (char *) xmalloc (strlen (functionname) + 1);
1769 strcpy (prev_functionname, functionname);
1770 }
1771
1772 if (linenumber > 0 && linenumber != prev_line)
1773 prev_line = linenumber;
1774
1775 if (discriminator != prev_discriminator)
1776 prev_discriminator = discriminator;
1777
1778 if (path)
1779 free (path);
1780 }
1781
1782 /* Pseudo FILE object for strings. */
1783 typedef struct
1784 {
1785 char *buffer;
1786 size_t pos;
1787 size_t alloc;
1788 } SFILE;
1789
1790 /* sprintf to a "stream". */
1791
1792 static int ATTRIBUTE_PRINTF_2
1793 objdump_sprintf (SFILE *f, const char *format, ...)
1794 {
1795 size_t n;
1796 va_list args;
1797
1798 while (1)
1799 {
1800 size_t space = f->alloc - f->pos;
1801
1802 va_start (args, format);
1803 n = vsnprintf (f->buffer + f->pos, space, format, args);
1804 va_end (args);
1805
1806 if (space > n)
1807 break;
1808
1809 f->alloc = (f->alloc + n) * 2;
1810 f->buffer = (char *) xrealloc (f->buffer, f->alloc);
1811 }
1812 f->pos += n;
1813
1814 return n;
1815 }
1816
1817 /* The number of zeroes we want to see before we start skipping them.
1818 The number is arbitrarily chosen. */
1819
1820 #define DEFAULT_SKIP_ZEROES 8
1821
1822 /* The number of zeroes to skip at the end of a section. If the
1823 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1824 SKIP_ZEROES, they will be disassembled. If there are fewer than
1825 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1826 attempt to avoid disassembling zeroes inserted by section
1827 alignment. */
1828
1829 #define DEFAULT_SKIP_ZEROES_AT_END 3
1830
1831 /* Disassemble some data in memory between given values. */
1832
1833 static void
1834 disassemble_bytes (struct disassemble_info * inf,
1835 disassembler_ftype disassemble_fn,
1836 bfd_boolean insns,
1837 bfd_byte * data,
1838 bfd_vma start_offset,
1839 bfd_vma stop_offset,
1840 bfd_vma rel_offset,
1841 arelent *** relppp,
1842 arelent ** relppend)
1843 {
1844 struct objdump_disasm_info *aux;
1845 asection *section;
1846 int octets_per_line;
1847 int skip_addr_chars;
1848 bfd_vma addr_offset;
1849 unsigned int opb = inf->octets_per_byte;
1850 unsigned int skip_zeroes = inf->skip_zeroes;
1851 unsigned int skip_zeroes_at_end = inf->skip_zeroes_at_end;
1852 int octets = opb;
1853 SFILE sfile;
1854
1855 aux = (struct objdump_disasm_info *) inf->application_data;
1856 section = aux->sec;
1857
1858 sfile.alloc = 120;
1859 sfile.buffer = (char *) xmalloc (sfile.alloc);
1860 sfile.pos = 0;
1861
1862 if (insn_width)
1863 octets_per_line = insn_width;
1864 else if (insns)
1865 octets_per_line = 4;
1866 else
1867 octets_per_line = 16;
1868
1869 /* Figure out how many characters to skip at the start of an
1870 address, to make the disassembly look nicer. We discard leading
1871 zeroes in chunks of 4, ensuring that there is always a leading
1872 zero remaining. */
1873 skip_addr_chars = 0;
1874 if (! prefix_addresses)
1875 {
1876 char buf[30];
1877
1878 bfd_sprintf_vma (aux->abfd, buf, section->vma + section->size / opb);
1879
1880 while (buf[skip_addr_chars] == '0')
1881 ++skip_addr_chars;
1882
1883 /* Don't discard zeros on overflow. */
1884 if (buf[skip_addr_chars] == '\0' && section->vma != 0)
1885 skip_addr_chars = 0;
1886
1887 if (skip_addr_chars != 0)
1888 skip_addr_chars = (skip_addr_chars - 1) & -4;
1889 }
1890
1891 inf->insn_info_valid = 0;
1892
1893 addr_offset = start_offset;
1894 while (addr_offset < stop_offset)
1895 {
1896 bfd_vma z;
1897 bfd_boolean need_nl = FALSE;
1898 int previous_octets;
1899
1900 /* Remember the length of the previous instruction. */
1901 previous_octets = octets;
1902 octets = 0;
1903
1904 /* Make sure we don't use relocs from previous instructions. */
1905 aux->reloc = NULL;
1906
1907 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1908 print `...'. */
1909 for (z = addr_offset * opb; z < stop_offset * opb; z++)
1910 if (data[z] != 0)
1911 break;
1912 if (! disassemble_zeroes
1913 && (inf->insn_info_valid == 0
1914 || inf->branch_delay_insns == 0)
1915 && (z - addr_offset * opb >= skip_zeroes
1916 || (z == stop_offset * opb &&
1917 z - addr_offset * opb < skip_zeroes_at_end)))
1918 {
1919 /* If there are more nonzero octets to follow, we only skip
1920 zeroes in multiples of 4, to try to avoid running over
1921 the start of an instruction which happens to start with
1922 zero. */
1923 if (z != stop_offset * opb)
1924 z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
1925
1926 octets = z - addr_offset * opb;
1927
1928 /* If we are going to display more data, and we are displaying
1929 file offsets, then tell the user how many zeroes we skip
1930 and the file offset from where we resume dumping. */
1931 if (display_file_offsets && ((addr_offset + (octets / opb)) < stop_offset))
1932 printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
1933 octets / opb,
1934 (unsigned long) (section->filepos
1935 + (addr_offset + (octets / opb))));
1936 else
1937 printf ("\t...\n");
1938 }
1939 else
1940 {
1941 char buf[50];
1942 int bpc = 0;
1943 int pb = 0;
1944
1945 if (with_line_numbers || with_source_code)
1946 show_line (aux->abfd, section, addr_offset);
1947
1948 if (! prefix_addresses)
1949 {
1950 char *s;
1951
1952 bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset);
1953 for (s = buf + skip_addr_chars; *s == '0'; s++)
1954 *s = ' ';
1955 if (*s == '\0')
1956 *--s = '0';
1957 printf ("%s:\t", buf + skip_addr_chars);
1958 }
1959 else
1960 {
1961 aux->require_sec = TRUE;
1962 objdump_print_address (section->vma + addr_offset, inf);
1963 aux->require_sec = FALSE;
1964 putchar (' ');
1965 }
1966
1967 if (insns)
1968 {
1969 sfile.pos = 0;
1970 inf->fprintf_func = (fprintf_ftype) objdump_sprintf;
1971 inf->stream = &sfile;
1972 inf->bytes_per_line = 0;
1973 inf->bytes_per_chunk = 0;
1974 inf->flags = ((disassemble_all ? DISASSEMBLE_DATA : 0)
1975 | (wide_output ? WIDE_OUTPUT : 0));
1976 if (machine)
1977 inf->flags |= USER_SPECIFIED_MACHINE_TYPE;
1978
1979 if (inf->disassembler_needs_relocs
1980 && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0
1981 && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0
1982 && *relppp < relppend)
1983 {
1984 bfd_signed_vma distance_to_rel;
1985
1986 distance_to_rel = (**relppp)->address
1987 - (rel_offset + addr_offset);
1988
1989 /* Check to see if the current reloc is associated with
1990 the instruction that we are about to disassemble. */
1991 if (distance_to_rel == 0
1992 /* FIXME: This is wrong. We are trying to catch
1993 relocs that are addressed part way through the
1994 current instruction, as might happen with a packed
1995 VLIW instruction. Unfortunately we do not know the
1996 length of the current instruction since we have not
1997 disassembled it yet. Instead we take a guess based
1998 upon the length of the previous instruction. The
1999 proper solution is to have a new target-specific
2000 disassembler function which just returns the length
2001 of an instruction at a given address without trying
2002 to display its disassembly. */
2003 || (distance_to_rel > 0
2004 && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
2005 {
2006 inf->flags |= INSN_HAS_RELOC;
2007 aux->reloc = **relppp;
2008 }
2009 }
2010
2011 if (! disassemble_all
2012 && (section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
2013 == (SEC_CODE | SEC_HAS_CONTENTS))
2014 /* Set a stop_vma so that the disassembler will not read
2015 beyond the next symbol. We assume that symbols appear on
2016 the boundaries between instructions. We only do this when
2017 disassembling code of course, and when -D is in effect. */
2018 inf->stop_vma = section->vma + stop_offset;
2019
2020 inf->stop_offset = stop_offset;
2021 octets = (*disassemble_fn) (section->vma + addr_offset, inf);
2022
2023 inf->stop_vma = 0;
2024 inf->fprintf_func = (fprintf_ftype) fprintf;
2025 inf->stream = stdout;
2026 if (insn_width == 0 && inf->bytes_per_line != 0)
2027 octets_per_line = inf->bytes_per_line;
2028 if (octets < (int) opb)
2029 {
2030 if (sfile.pos)
2031 printf ("%s\n", sfile.buffer);
2032 if (octets >= 0)
2033 {
2034 non_fatal (_("disassemble_fn returned length %d"),
2035 octets);
2036 exit_status = 1;
2037 }
2038 break;
2039 }
2040 }
2041 else
2042 {
2043 bfd_vma j;
2044
2045 octets = octets_per_line;
2046 if (addr_offset + octets / opb > stop_offset)
2047 octets = (stop_offset - addr_offset) * opb;
2048
2049 for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
2050 {
2051 if (ISPRINT (data[j]))
2052 buf[j - addr_offset * opb] = data[j];
2053 else
2054 buf[j - addr_offset * opb] = '.';
2055 }
2056 buf[j - addr_offset * opb] = '\0';
2057 }
2058
2059 if (prefix_addresses
2060 ? show_raw_insn > 0
2061 : show_raw_insn >= 0)
2062 {
2063 bfd_vma j;
2064
2065 /* If ! prefix_addresses and ! wide_output, we print
2066 octets_per_line octets per line. */
2067 pb = octets;
2068 if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
2069 pb = octets_per_line;
2070
2071 if (inf->bytes_per_chunk)
2072 bpc = inf->bytes_per_chunk;
2073 else
2074 bpc = 1;
2075
2076 for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
2077 {
2078 /* PR 21580: Check for a buffer ending early. */
2079 if (j + bpc <= stop_offset * opb)
2080 {
2081 int k;
2082
2083 if (inf->display_endian == BFD_ENDIAN_LITTLE)
2084 {
2085 for (k = bpc - 1; k >= 0; k--)
2086 printf ("%02x", (unsigned) data[j + k]);
2087 }
2088 else
2089 {
2090 for (k = 0; k < bpc; k++)
2091 printf ("%02x", (unsigned) data[j + k]);
2092 }
2093 }
2094 putchar (' ');
2095 }
2096
2097 for (; pb < octets_per_line; pb += bpc)
2098 {
2099 int k;
2100
2101 for (k = 0; k < bpc; k++)
2102 printf (" ");
2103 putchar (' ');
2104 }
2105
2106 /* Separate raw data from instruction by extra space. */
2107 if (insns)
2108 putchar ('\t');
2109 else
2110 printf (" ");
2111 }
2112
2113 if (! insns)
2114 printf ("%s", buf);
2115 else if (sfile.pos)
2116 printf ("%s", sfile.buffer);
2117
2118 if (prefix_addresses
2119 ? show_raw_insn > 0
2120 : show_raw_insn >= 0)
2121 {
2122 while (pb < octets)
2123 {
2124 bfd_vma j;
2125 char *s;
2126
2127 putchar ('\n');
2128 j = addr_offset * opb + pb;
2129
2130 bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb);
2131 for (s = buf + skip_addr_chars; *s == '0'; s++)
2132 *s = ' ';
2133 if (*s == '\0')
2134 *--s = '0';
2135 printf ("%s:\t", buf + skip_addr_chars);
2136
2137 pb += octets_per_line;
2138 if (pb > octets)
2139 pb = octets;
2140 for (; j < addr_offset * opb + pb; j += bpc)
2141 {
2142 /* PR 21619: Check for a buffer ending early. */
2143 if (j + bpc <= stop_offset * opb)
2144 {
2145 int k;
2146
2147 if (inf->display_endian == BFD_ENDIAN_LITTLE)
2148 {
2149 for (k = bpc - 1; k >= 0; k--)
2150 printf ("%02x", (unsigned) data[j + k]);
2151 }
2152 else
2153 {
2154 for (k = 0; k < bpc; k++)
2155 printf ("%02x", (unsigned) data[j + k]);
2156 }
2157 }
2158 putchar (' ');
2159 }
2160 }
2161 }
2162
2163 if (!wide_output)
2164 putchar ('\n');
2165 else
2166 need_nl = TRUE;
2167 }
2168
2169 while ((*relppp) < relppend
2170 && (**relppp)->address < rel_offset + addr_offset + octets / opb)
2171 {
2172 if (dump_reloc_info || dump_dynamic_reloc_info)
2173 {
2174 arelent *q;
2175
2176 q = **relppp;
2177
2178 if (wide_output)
2179 putchar ('\t');
2180 else
2181 printf ("\t\t\t");
2182
2183 objdump_print_value (section->vma - rel_offset + q->address,
2184 inf, TRUE);
2185
2186 if (q->howto == NULL)
2187 printf (": *unknown*\t");
2188 else if (q->howto->name)
2189 printf (": %s\t", q->howto->name);
2190 else
2191 printf (": %d\t", q->howto->type);
2192
2193 if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
2194 printf ("*unknown*");
2195 else
2196 {
2197 const char *sym_name;
2198
2199 sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
2200 if (sym_name != NULL && *sym_name != '\0')
2201 objdump_print_symname (aux->abfd, inf, *q->sym_ptr_ptr);
2202 else
2203 {
2204 asection *sym_sec;
2205
2206 sym_sec = bfd_get_section (*q->sym_ptr_ptr);
2207 sym_name = bfd_get_section_name (aux->abfd, sym_sec);
2208 if (sym_name == NULL || *sym_name == '\0')
2209 sym_name = "*unknown*";
2210 printf ("%s", sanitize_string (sym_name));
2211 }
2212 }
2213
2214 if (q->addend)
2215 {
2216 bfd_signed_vma addend = q->addend;
2217 if (addend < 0)
2218 {
2219 printf ("-0x");
2220 addend = -addend;
2221 }
2222 else
2223 printf ("+0x");
2224 objdump_print_value (addend, inf, TRUE);
2225 }
2226
2227 printf ("\n");
2228 need_nl = FALSE;
2229 }
2230 ++(*relppp);
2231 }
2232
2233 if (need_nl)
2234 printf ("\n");
2235
2236 addr_offset += octets / opb;
2237 }
2238
2239 free (sfile.buffer);
2240 }
2241
2242 static void
2243 disassemble_section (bfd *abfd, asection *section, void *inf)
2244 {
2245 const struct elf_backend_data * bed;
2246 bfd_vma sign_adjust = 0;
2247 struct disassemble_info * pinfo = (struct disassemble_info *) inf;
2248 struct objdump_disasm_info * paux;
2249 unsigned int opb = pinfo->octets_per_byte;
2250 bfd_byte * data = NULL;
2251 bfd_size_type datasize = 0;
2252 arelent ** rel_pp = NULL;
2253 arelent ** rel_ppstart = NULL;
2254 arelent ** rel_ppend;
2255 bfd_vma stop_offset;
2256 asymbol * sym = NULL;
2257 long place = 0;
2258 long rel_count;
2259 bfd_vma rel_offset;
2260 unsigned long addr_offset;
2261 bfd_boolean do_print;
2262 enum loop_control
2263 {
2264 stop_offset_reached,
2265 function_sym,
2266 next_sym
2267 } loop_until;
2268
2269 /* Sections that do not contain machine
2270 code are not normally disassembled. */
2271 if (! disassemble_all
2272 && only_list == NULL
2273 && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
2274 != (SEC_CODE | SEC_HAS_CONTENTS)))
2275 return;
2276
2277 if (! process_section_p (section))
2278 return;
2279
2280 datasize = bfd_get_section_size (section);
2281 if (datasize == 0)
2282 return;
2283
2284 if (start_address == (bfd_vma) -1
2285 || start_address < section->vma)
2286 addr_offset = 0;
2287 else
2288 addr_offset = start_address - section->vma;
2289
2290 if (stop_address == (bfd_vma) -1)
2291 stop_offset = datasize / opb;
2292 else
2293 {
2294 if (stop_address < section->vma)
2295 stop_offset = 0;
2296 else
2297 stop_offset = stop_address - section->vma;
2298 if (stop_offset > datasize / opb)
2299 stop_offset = datasize / opb;
2300 }
2301
2302 if (addr_offset >= stop_offset)
2303 return;
2304
2305 /* Decide which set of relocs to use. Load them if necessary. */
2306 paux = (struct objdump_disasm_info *) pinfo->application_data;
2307 if (paux->dynrelbuf && dump_dynamic_reloc_info)
2308 {
2309 rel_pp = paux->dynrelbuf;
2310 rel_count = paux->dynrelcount;
2311 /* Dynamic reloc addresses are absolute, non-dynamic are section
2312 relative. REL_OFFSET specifies the reloc address corresponding
2313 to the start of this section. */
2314 rel_offset = section->vma;
2315 }
2316 else
2317 {
2318 rel_count = 0;
2319 rel_pp = NULL;
2320 rel_offset = 0;
2321
2322 if ((section->flags & SEC_RELOC) != 0
2323 && (dump_reloc_info || pinfo->disassembler_needs_relocs))
2324 {
2325 long relsize;
2326
2327 relsize = bfd_get_reloc_upper_bound (abfd, section);
2328 if (relsize < 0)
2329 bfd_fatal (bfd_get_filename (abfd));
2330
2331 if (relsize > 0)
2332 {
2333 rel_ppstart = rel_pp = (arelent **) xmalloc (relsize);
2334 rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms);
2335 if (rel_count < 0)
2336 bfd_fatal (bfd_get_filename (abfd));
2337
2338 /* Sort the relocs by address. */
2339 qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs);
2340 }
2341 }
2342 }
2343 rel_ppend = rel_pp + rel_count;
2344
2345 if (!bfd_malloc_and_get_section (abfd, section, &data))
2346 {
2347 non_fatal (_("Reading section %s failed because: %s"),
2348 section->name, bfd_errmsg (bfd_get_error ()));
2349 return;
2350 }
2351
2352 paux->sec = section;
2353 pinfo->buffer = data;
2354 pinfo->buffer_vma = section->vma;
2355 pinfo->buffer_length = datasize;
2356 pinfo->section = section;
2357
2358 /* Skip over the relocs belonging to addresses below the
2359 start address. */
2360 while (rel_pp < rel_ppend
2361 && (*rel_pp)->address < rel_offset + addr_offset)
2362 ++rel_pp;
2363
2364 printf (_("\nDisassembly of section %s:\n"), sanitize_string (section->name));
2365
2366 /* Find the nearest symbol forwards from our current position. */
2367 paux->require_sec = TRUE;
2368 sym = (asymbol *) find_symbol_for_address (section->vma + addr_offset,
2369 (struct disassemble_info *) inf,
2370 &place);
2371 paux->require_sec = FALSE;
2372
2373 /* PR 9774: If the target used signed addresses then we must make
2374 sure that we sign extend the value that we calculate for 'addr'
2375 in the loop below. */
2376 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
2377 && (bed = get_elf_backend_data (abfd)) != NULL
2378 && bed->sign_extend_vma)
2379 sign_adjust = (bfd_vma) 1 << (bed->s->arch_size - 1);
2380
2381 /* Disassemble a block of instructions up to the address associated with
2382 the symbol we have just found. Then print the symbol and find the
2383 next symbol on. Repeat until we have disassembled the entire section
2384 or we have reached the end of the address range we are interested in. */
2385 do_print = paux->symbol == NULL;
2386 loop_until = stop_offset_reached;
2387
2388 while (addr_offset < stop_offset)
2389 {
2390 bfd_vma addr;
2391 asymbol *nextsym;
2392 bfd_vma nextstop_offset;
2393 bfd_boolean insns;
2394
2395 addr = section->vma + addr_offset;
2396 addr = ((addr & ((sign_adjust << 1) - 1)) ^ sign_adjust) - sign_adjust;
2397
2398 if (sym != NULL && bfd_asymbol_value (sym) <= addr)
2399 {
2400 int x;
2401
2402 for (x = place;
2403 (x < sorted_symcount
2404 && (bfd_asymbol_value (sorted_syms[x]) <= addr));
2405 ++x)
2406 continue;
2407
2408 pinfo->symbols = sorted_syms + place;
2409 pinfo->num_symbols = x - place;
2410 pinfo->symtab_pos = place;
2411 }
2412 else
2413 {
2414 pinfo->symbols = NULL;
2415 pinfo->num_symbols = 0;
2416 pinfo->symtab_pos = -1;
2417 }
2418
2419 /* If we are only disassembling from a specific symbol,
2420 check to see if we should start or stop displaying. */
2421 if (sym && paux->symbol)
2422 {
2423 if (do_print)
2424 {
2425 /* See if we should stop printing. */
2426 switch (loop_until)
2427 {
2428 case function_sym:
2429 if (sym->flags & BSF_FUNCTION)
2430 do_print = FALSE;
2431 break;
2432
2433 case stop_offset_reached:
2434 /* Handled by the while loop. */
2435 break;
2436
2437 case next_sym:
2438 /* FIXME: There is an implicit assumption here
2439 that the name of sym is different from
2440 paux->symbol. */
2441 if (! bfd_is_local_label (abfd, sym))
2442 do_print = FALSE;
2443 break;
2444 }
2445 }
2446 else
2447 {
2448 const char * name = bfd_asymbol_name (sym);
2449 char * alloc = NULL;
2450
2451 if (do_demangle && name[0] != '\0')
2452 {
2453 /* Demangle the name. */
2454 alloc = bfd_demangle (abfd, name, demangle_flags);
2455 if (alloc != NULL)
2456 name = alloc;
2457 }
2458
2459 /* We are not currently printing. Check to see
2460 if the current symbol matches the requested symbol. */
2461 if (streq (name, paux->symbol))
2462 {
2463 do_print = TRUE;
2464
2465 if (sym->flags & BSF_FUNCTION)
2466 {
2467 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
2468 && ((elf_symbol_type *) sym)->internal_elf_sym.st_size > 0)
2469 {
2470 /* Sym is a function symbol with a size associated
2471 with it. Turn on automatic disassembly for the
2472 next VALUE bytes. */
2473 stop_offset = addr_offset
2474 + ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
2475 loop_until = stop_offset_reached;
2476 }
2477 else
2478 {
2479 /* Otherwise we need to tell the loop heuristic to
2480 loop until the next function symbol is encountered. */
2481 loop_until = function_sym;
2482 }
2483 }
2484 else
2485 {
2486 /* Otherwise loop until the next symbol is encountered. */
2487 loop_until = next_sym;
2488 }
2489 }
2490
2491 free (alloc);
2492 }
2493 }
2494
2495 if (! prefix_addresses && do_print)
2496 {
2497 pinfo->fprintf_func (pinfo->stream, "\n");
2498 objdump_print_addr_with_sym (abfd, section, sym, addr,
2499 pinfo, FALSE);
2500 pinfo->fprintf_func (pinfo->stream, ":\n");
2501 }
2502
2503 if (sym != NULL && bfd_asymbol_value (sym) > addr)
2504 nextsym = sym;
2505 else if (sym == NULL)
2506 nextsym = NULL;
2507 else
2508 {
2509 #define is_valid_next_sym(SYM) \
2510 (strcmp (bfd_section_name (abfd, (SYM)->section), bfd_section_name (abfd, section)) == 0 \
2511 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
2512 && pinfo->symbol_is_valid (SYM, pinfo))
2513
2514 /* Search forward for the next appropriate symbol in
2515 SECTION. Note that all the symbols are sorted
2516 together into one big array, and that some sections
2517 may have overlapping addresses. */
2518 while (place < sorted_symcount
2519 && ! is_valid_next_sym (sorted_syms [place]))
2520 ++place;
2521
2522 if (place >= sorted_symcount)
2523 nextsym = NULL;
2524 else
2525 nextsym = sorted_syms[place];
2526 }
2527
2528 if (sym != NULL && bfd_asymbol_value (sym) > addr)
2529 nextstop_offset = bfd_asymbol_value (sym) - section->vma;
2530 else if (nextsym == NULL)
2531 nextstop_offset = stop_offset;
2532 else
2533 nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
2534
2535 if (nextstop_offset > stop_offset
2536 || nextstop_offset <= addr_offset)
2537 nextstop_offset = stop_offset;
2538
2539 /* If a symbol is explicitly marked as being an object
2540 rather than a function, just dump the bytes without
2541 disassembling them. */
2542 if (disassemble_all
2543 || sym == NULL
2544 || sym->section != section
2545 || bfd_asymbol_value (sym) > addr
2546 || ((sym->flags & BSF_OBJECT) == 0
2547 && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
2548 == NULL)
2549 && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
2550 == NULL))
2551 || (sym->flags & BSF_FUNCTION) != 0)
2552 insns = TRUE;
2553 else
2554 insns = FALSE;
2555
2556 if (do_print)
2557 disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
2558 addr_offset, nextstop_offset,
2559 rel_offset, &rel_pp, rel_ppend);
2560
2561 addr_offset = nextstop_offset;
2562 sym = nextsym;
2563 }
2564
2565 free (data);
2566
2567 if (rel_ppstart != NULL)
2568 free (rel_ppstart);
2569 }
2570
2571 /* Disassemble the contents of an object file. */
2572
2573 static void
2574 disassemble_data (bfd *abfd)
2575 {
2576 struct disassemble_info disasm_info;
2577 struct objdump_disasm_info aux;
2578 long i;
2579
2580 print_files = NULL;
2581 prev_functionname = NULL;
2582 prev_line = -1;
2583 prev_discriminator = 0;
2584
2585 /* We make a copy of syms to sort. We don't want to sort syms
2586 because that will screw up the relocs. */
2587 sorted_symcount = symcount ? symcount : dynsymcount;
2588 sorted_syms = (asymbol **) xmalloc ((sorted_symcount + synthcount)
2589 * sizeof (asymbol *));
2590 memcpy (sorted_syms, symcount ? syms : dynsyms,
2591 sorted_symcount * sizeof (asymbol *));
2592
2593 sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
2594
2595 for (i = 0; i < synthcount; ++i)
2596 {
2597 sorted_syms[sorted_symcount] = synthsyms + i;
2598 ++sorted_symcount;
2599 }
2600
2601 /* Sort the symbols into section and symbol order. */
2602 qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
2603
2604 init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
2605
2606 disasm_info.application_data = (void *) &aux;
2607 aux.abfd = abfd;
2608 aux.require_sec = FALSE;
2609 aux.dynrelbuf = NULL;
2610 aux.dynrelcount = 0;
2611 aux.reloc = NULL;
2612 aux.symbol = disasm_sym;
2613
2614 disasm_info.print_address_func = objdump_print_address;
2615 disasm_info.symbol_at_address_func = objdump_symbol_at_address;
2616
2617 if (machine != NULL)
2618 {
2619 const bfd_arch_info_type *inf = bfd_scan_arch (machine);
2620
2621 if (inf == NULL)
2622 fatal (_("can't use supplied machine %s"), machine);
2623
2624 abfd->arch_info = inf;
2625 }
2626
2627 if (endian != BFD_ENDIAN_UNKNOWN)
2628 {
2629 struct bfd_target *xvec;
2630
2631 xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
2632 memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
2633 xvec->byteorder = endian;
2634 abfd->xvec = xvec;
2635 }
2636
2637 /* Use libopcodes to locate a suitable disassembler. */
2638 aux.disassemble_fn = disassembler (bfd_get_arch (abfd),
2639 bfd_big_endian (abfd),
2640 bfd_get_mach (abfd), abfd);
2641 if (!aux.disassemble_fn)
2642 {
2643 non_fatal (_("can't disassemble for architecture %s\n"),
2644 bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
2645 exit_status = 1;
2646 return;
2647 }
2648
2649 disasm_info.flavour = bfd_get_flavour (abfd);
2650 disasm_info.arch = bfd_get_arch (abfd);
2651 disasm_info.mach = bfd_get_mach (abfd);
2652 disasm_info.disassembler_options = disassembler_options;
2653 disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
2654 disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
2655 disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
2656 disasm_info.disassembler_needs_relocs = FALSE;
2657
2658 if (bfd_big_endian (abfd))
2659 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
2660 else if (bfd_little_endian (abfd))
2661 disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE;
2662 else
2663 /* ??? Aborting here seems too drastic. We could default to big or little
2664 instead. */
2665 disasm_info.endian = BFD_ENDIAN_UNKNOWN;
2666
2667 /* Allow the target to customize the info structure. */
2668 disassemble_init_for_target (& disasm_info);
2669
2670 /* Pre-load the dynamic relocs as we may need them during the disassembly. */
2671 {
2672 long relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
2673
2674 if (relsize < 0 && dump_dynamic_reloc_info)
2675 bfd_fatal (bfd_get_filename (abfd));
2676
2677 if (relsize > 0)
2678 {
2679 aux.dynrelbuf = (arelent **) xmalloc (relsize);
2680 aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
2681 aux.dynrelbuf,
2682 dynsyms);
2683 if (aux.dynrelcount < 0)
2684 bfd_fatal (bfd_get_filename (abfd));
2685
2686 /* Sort the relocs by address. */
2687 qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
2688 compare_relocs);
2689 }
2690 }
2691 disasm_info.symtab = sorted_syms;
2692 disasm_info.symtab_size = sorted_symcount;
2693
2694 bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
2695
2696 if (aux.dynrelbuf != NULL)
2697 free (aux.dynrelbuf);
2698 free (sorted_syms);
2699 }
2700 \f
2701 static bfd_boolean
2702 load_specific_debug_section (enum dwarf_section_display_enum debug,
2703 asection *sec, void *file)
2704 {
2705 struct dwarf_section *section = &debug_displays [debug].section;
2706 bfd *abfd = (bfd *) file;
2707 bfd_byte *contents;
2708 bfd_size_type amt;
2709 size_t alloced;
2710
2711 if (section->start != NULL)
2712 {
2713 /* If it is already loaded, do nothing. */
2714 if (streq (section->filename, bfd_get_filename (abfd)))
2715 return TRUE;
2716 free (section->start);
2717 }
2718
2719 section->filename = bfd_get_filename (abfd);
2720 section->reloc_info = NULL;
2721 section->num_relocs = 0;
2722 section->address = bfd_get_section_vma (abfd, sec);
2723 section->user_data = sec;
2724 section->size = bfd_get_section_size (sec);
2725 /* PR 24360: On 32-bit hosts sizeof (size_t) < sizeof (bfd_size_type). */
2726 alloced = amt = section->size + 1;
2727 if (alloced != amt || alloced == 0)
2728 {
2729 section->start = NULL;
2730 free_debug_section (debug);
2731 printf (_("\nSection '%s' has an invalid size: %#llx.\n"),
2732 sanitize_string (section->name),
2733 (unsigned long long) section->size);
2734 return FALSE;
2735 }
2736 section->start = contents = malloc (alloced);
2737 if (section->start == NULL
2738 || !bfd_get_full_section_contents (abfd, sec, &contents))
2739 {
2740 free_debug_section (debug);
2741 printf (_("\nCan't get contents for section '%s'.\n"),
2742 sanitize_string (section->name));
2743 return FALSE;
2744 }
2745 /* Ensure any string section has a terminating NUL. */
2746 section->start[section->size] = 0;
2747
2748 if (is_relocatable && debug_displays [debug].relocate)
2749 {
2750 long reloc_size;
2751 bfd_boolean ret;
2752
2753 bfd_cache_section_contents (sec, section->start);
2754
2755 ret = bfd_simple_get_relocated_section_contents (abfd,
2756 sec,
2757 section->start,
2758 syms) != NULL;
2759
2760 if (! ret)
2761 {
2762 free_debug_section (debug);
2763 printf (_("\nCan't get contents for section '%s'.\n"),
2764 sanitize_string (section->name));
2765 return FALSE;
2766 }
2767
2768 reloc_size = bfd_get_reloc_upper_bound (abfd, sec);
2769 if (reloc_size > 0)
2770 {
2771 unsigned long reloc_count;
2772 arelent **relocs;
2773
2774 relocs = (arelent **) xmalloc (reloc_size);
2775
2776 reloc_count = bfd_canonicalize_reloc (abfd, sec, relocs, NULL);
2777 if (reloc_count == 0)
2778 free (relocs);
2779 else
2780 {
2781 section->reloc_info = relocs;
2782 section->num_relocs = reloc_count;
2783 }
2784 }
2785 }
2786
2787 return TRUE;
2788 }
2789
2790 bfd_boolean
2791 reloc_at (struct dwarf_section * dsec, dwarf_vma offset)
2792 {
2793 arelent ** relocs;
2794 arelent * rp;
2795
2796 if (dsec == NULL || dsec->reloc_info == NULL)
2797 return FALSE;
2798
2799 relocs = (arelent **) dsec->reloc_info;
2800
2801 for (; (rp = * relocs) != NULL; ++ relocs)
2802 if (rp->address == offset)
2803 return TRUE;
2804
2805 return FALSE;
2806 }
2807
2808 bfd_boolean
2809 load_debug_section (enum dwarf_section_display_enum debug, void *file)
2810 {
2811 struct dwarf_section *section = &debug_displays [debug].section;
2812 bfd *abfd = (bfd *) file;
2813 asection *sec;
2814
2815 /* If it is already loaded, do nothing. */
2816 if (section->start != NULL)
2817 {
2818 if (streq (section->filename, bfd_get_filename (abfd)))
2819 return TRUE;
2820 }
2821
2822 /* Locate the debug section. */
2823 sec = bfd_get_section_by_name (abfd, section->uncompressed_name);
2824 if (sec != NULL)
2825 section->name = section->uncompressed_name;
2826 else
2827 {
2828 sec = bfd_get_section_by_name (abfd, section->compressed_name);
2829 if (sec != NULL)
2830 section->name = section->compressed_name;
2831 }
2832 if (sec == NULL)
2833 return FALSE;
2834
2835 return load_specific_debug_section (debug, sec, file);
2836 }
2837
2838 void
2839 free_debug_section (enum dwarf_section_display_enum debug)
2840 {
2841 struct dwarf_section *section = &debug_displays [debug].section;
2842
2843 if (section->start == NULL)
2844 return;
2845
2846 /* PR 17512: file: 0f67f69d. */
2847 if (section->user_data != NULL)
2848 {
2849 asection * sec = (asection *) section->user_data;
2850
2851 /* If we are freeing contents that are also pointed to by the BFD
2852 library's section structure then make sure to update those pointers
2853 too. Otherwise, the next time we try to load data for this section
2854 we can end up using a stale pointer. */
2855 if (section->start == sec->contents)
2856 {
2857 sec->contents = NULL;
2858 sec->flags &= ~ SEC_IN_MEMORY;
2859 sec->compress_status = COMPRESS_SECTION_NONE;
2860 }
2861 }
2862
2863 free ((char *) section->start);
2864 section->start = NULL;
2865 section->address = 0;
2866 section->size = 0;
2867 }
2868
2869 void
2870 close_debug_file (void * file)
2871 {
2872 bfd * abfd = (bfd *) file;
2873
2874 bfd_close (abfd);
2875 }
2876
2877 void *
2878 open_debug_file (const char * pathname)
2879 {
2880 bfd * data;
2881
2882 data = bfd_openr (pathname, NULL);
2883 if (data == NULL)
2884 return NULL;
2885
2886 if (! bfd_check_format (data, bfd_object))
2887 return NULL;
2888
2889 return data;
2890 }
2891
2892 static void
2893 dump_dwarf_section (bfd *abfd, asection *section,
2894 void *arg ATTRIBUTE_UNUSED)
2895 {
2896 const char *name = bfd_get_section_name (abfd, section);
2897 const char *match;
2898 int i;
2899
2900 if (CONST_STRNEQ (name, ".gnu.linkonce.wi."))
2901 match = ".debug_info";
2902 else
2903 match = name;
2904
2905 for (i = 0; i < max; i++)
2906 if ((strcmp (debug_displays [i].section.uncompressed_name, match) == 0
2907 || strcmp (debug_displays [i].section.compressed_name, match) == 0)
2908 && debug_displays [i].enabled != NULL
2909 && *debug_displays [i].enabled)
2910 {
2911 struct dwarf_section *sec = &debug_displays [i].section;
2912
2913 if (strcmp (sec->uncompressed_name, match) == 0)
2914 sec->name = sec->uncompressed_name;
2915 else
2916 sec->name = sec->compressed_name;
2917 if (load_specific_debug_section ((enum dwarf_section_display_enum) i,
2918 section, abfd))
2919 {
2920 debug_displays [i].display (sec, abfd);
2921
2922 if (i != info && i != abbrev)
2923 free_debug_section ((enum dwarf_section_display_enum) i);
2924 }
2925 break;
2926 }
2927 }
2928
2929 /* Dump the dwarf debugging information. */
2930
2931 static void
2932 dump_dwarf (bfd *abfd)
2933 {
2934 /* The byte_get pointer should have been set at the start of dump_bfd(). */
2935 if (byte_get == NULL)
2936 {
2937 warn (_("File %s does not contain any dwarf debug information\n"),
2938 bfd_get_filename (abfd));
2939 return;
2940 }
2941
2942 is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2943
2944 eh_addr_size = bfd_arch_bits_per_address (abfd) / 8;
2945
2946 switch (bfd_get_arch (abfd))
2947 {
2948 case bfd_arch_i386:
2949 switch (bfd_get_mach (abfd))
2950 {
2951 case bfd_mach_x86_64:
2952 case bfd_mach_x86_64_intel_syntax:
2953 case bfd_mach_x86_64_nacl:
2954 case bfd_mach_x64_32:
2955 case bfd_mach_x64_32_intel_syntax:
2956 case bfd_mach_x64_32_nacl:
2957 init_dwarf_regnames_x86_64 ();
2958 break;
2959
2960 default:
2961 init_dwarf_regnames_i386 ();
2962 break;
2963 }
2964 break;
2965
2966 case bfd_arch_iamcu:
2967 init_dwarf_regnames_iamcu ();
2968 break;
2969
2970 case bfd_arch_aarch64:
2971 init_dwarf_regnames_aarch64();
2972 break;
2973
2974 case bfd_arch_s390:
2975 init_dwarf_regnames_s390 ();
2976 break;
2977
2978 case bfd_arch_riscv:
2979 init_dwarf_regnames_riscv ();
2980 break;
2981
2982 case bfd_arch_s12z:
2983 /* S12Z has a 24 bit address space. But the only known
2984 producer of dwarf_info encodes addresses into 32 bits. */
2985 eh_addr_size = 4;
2986 break;
2987
2988 default:
2989 break;
2990 }
2991
2992 bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
2993 }
2994 \f
2995 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
2996 it. Return NULL on failure. */
2997
2998 static bfd_byte *
2999 read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr,
3000 bfd_size_type *entsize_ptr)
3001 {
3002 asection *stabsect;
3003 bfd_byte *contents;
3004
3005 stabsect = bfd_get_section_by_name (abfd, sect_name);
3006 if (stabsect == NULL)
3007 {
3008 printf (_("No %s section present\n\n"),
3009 sanitize_string (sect_name));
3010 return FALSE;
3011 }
3012
3013 if (!bfd_malloc_and_get_section (abfd, stabsect, &contents))
3014 {
3015 non_fatal (_("reading %s section of %s failed: %s"),
3016 sect_name, bfd_get_filename (abfd),
3017 bfd_errmsg (bfd_get_error ()));
3018 exit_status = 1;
3019 free (contents);
3020 return NULL;
3021 }
3022
3023 *size_ptr = bfd_section_size (abfd, stabsect);
3024 if (entsize_ptr)
3025 *entsize_ptr = stabsect->entsize;
3026
3027 return contents;
3028 }
3029
3030 /* Stabs entries use a 12 byte format:
3031 4 byte string table index
3032 1 byte stab type
3033 1 byte stab other field
3034 2 byte stab desc field
3035 4 byte stab value
3036 FIXME: This will have to change for a 64 bit object format. */
3037
3038 #define STRDXOFF (0)
3039 #define TYPEOFF (4)
3040 #define OTHEROFF (5)
3041 #define DESCOFF (6)
3042 #define VALOFF (8)
3043 #define STABSIZE (12)
3044
3045 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
3046 using string table section STRSECT_NAME (in `strtab'). */
3047
3048 static void
3049 print_section_stabs (bfd *abfd,
3050 const char *stabsect_name,
3051 unsigned *string_offset_ptr)
3052 {
3053 int i;
3054 unsigned file_string_table_offset = 0;
3055 unsigned next_file_string_table_offset = *string_offset_ptr;
3056 bfd_byte *stabp, *stabs_end;
3057
3058 stabp = stabs;
3059 stabs_end = stabp + stab_size;
3060
3061 printf (_("Contents of %s section:\n\n"), sanitize_string (stabsect_name));
3062 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
3063
3064 /* Loop through all symbols and print them.
3065
3066 We start the index at -1 because there is a dummy symbol on
3067 the front of stabs-in-{coff,elf} sections that supplies sizes. */
3068 for (i = -1; stabp <= stabs_end - STABSIZE; stabp += STABSIZE, i++)
3069 {
3070 const char *name;
3071 unsigned long strx;
3072 unsigned char type, other;
3073 unsigned short desc;
3074 bfd_vma value;
3075
3076 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
3077 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
3078 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
3079 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
3080 value = bfd_h_get_32 (abfd, stabp + VALOFF);
3081
3082 printf ("\n%-6d ", i);
3083 /* Either print the stab name, or, if unnamed, print its number
3084 again (makes consistent formatting for tools like awk). */
3085 name = bfd_get_stab_name (type);
3086 if (name != NULL)
3087 printf ("%-6s", sanitize_string (name));
3088 else if (type == N_UNDF)
3089 printf ("HdrSym");
3090 else
3091 printf ("%-6d", type);
3092 printf (" %-6d %-6d ", other, desc);
3093 bfd_printf_vma (abfd, value);
3094 printf (" %-6lu", strx);
3095
3096 /* Symbols with type == 0 (N_UNDF) specify the length of the
3097 string table associated with this file. We use that info
3098 to know how to relocate the *next* file's string table indices. */
3099 if (type == N_UNDF)
3100 {
3101 file_string_table_offset = next_file_string_table_offset;
3102 next_file_string_table_offset += value;
3103 }
3104 else
3105 {
3106 bfd_size_type amt = strx + file_string_table_offset;
3107
3108 /* Using the (possibly updated) string table offset, print the
3109 string (if any) associated with this symbol. */
3110 if (amt < stabstr_size)
3111 /* PR 17512: file: 079-79389-0.001:0.1.
3112 FIXME: May need to sanitize this string before displaying. */
3113 printf (" %.*s", (int)(stabstr_size - amt), strtab + amt);
3114 else
3115 printf (" *");
3116 }
3117 }
3118 printf ("\n\n");
3119 *string_offset_ptr = next_file_string_table_offset;
3120 }
3121
3122 typedef struct
3123 {
3124 const char * section_name;
3125 const char * string_section_name;
3126 unsigned string_offset;
3127 }
3128 stab_section_names;
3129
3130 static void
3131 find_stabs_section (bfd *abfd, asection *section, void *names)
3132 {
3133 int len;
3134 stab_section_names * sought = (stab_section_names *) names;
3135
3136 /* Check for section names for which stabsect_name is a prefix, to
3137 handle .stab.N, etc. */
3138 len = strlen (sought->section_name);
3139
3140 /* If the prefix matches, and the files section name ends with a
3141 nul or a digit, then we match. I.e., we want either an exact
3142 match or a section followed by a number. */
3143 if (strncmp (sought->section_name, section->name, len) == 0
3144 && (section->name[len] == 0
3145 || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
3146 {
3147 if (strtab == NULL)
3148 strtab = read_section_stabs (abfd, sought->string_section_name,
3149 &stabstr_size, NULL);
3150
3151 if (strtab)
3152 {
3153 stabs = read_section_stabs (abfd, section->name, &stab_size, NULL);
3154 if (stabs)
3155 print_section_stabs (abfd, section->name, &sought->string_offset);
3156 }
3157 }
3158 }
3159
3160 static void
3161 dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name)
3162 {
3163 stab_section_names s;
3164
3165 s.section_name = stabsect_name;
3166 s.string_section_name = strsect_name;
3167 s.string_offset = 0;
3168
3169 bfd_map_over_sections (abfd, find_stabs_section, & s);
3170
3171 free (strtab);
3172 strtab = NULL;
3173 }
3174
3175 /* Dump the any sections containing stabs debugging information. */
3176
3177 static void
3178 dump_stabs (bfd *abfd)
3179 {
3180 dump_stabs_section (abfd, ".stab", ".stabstr");
3181 dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr");
3182 dump_stabs_section (abfd, ".stab.index", ".stab.indexstr");
3183
3184 /* For Darwin. */
3185 dump_stabs_section (abfd, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr");
3186
3187 dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
3188 }
3189 \f
3190 static void
3191 dump_bfd_header (bfd *abfd)
3192 {
3193 char *comma = "";
3194
3195 printf (_("architecture: %s, "),
3196 bfd_printable_arch_mach (bfd_get_arch (abfd),
3197 bfd_get_mach (abfd)));
3198 printf (_("flags 0x%08x:\n"), abfd->flags & ~BFD_FLAGS_FOR_BFD_USE_MASK);
3199
3200 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
3201 PF (HAS_RELOC, "HAS_RELOC");
3202 PF (EXEC_P, "EXEC_P");
3203 PF (HAS_LINENO, "HAS_LINENO");
3204 PF (HAS_DEBUG, "HAS_DEBUG");
3205 PF (HAS_SYMS, "HAS_SYMS");
3206 PF (HAS_LOCALS, "HAS_LOCALS");
3207 PF (DYNAMIC, "DYNAMIC");
3208 PF (WP_TEXT, "WP_TEXT");
3209 PF (D_PAGED, "D_PAGED");
3210 PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
3211 printf (_("\nstart address 0x"));
3212 bfd_printf_vma (abfd, abfd->start_address);
3213 printf ("\n");
3214 }
3215 \f
3216
3217 #ifdef HAVE_LIBCTF
3218 /* Formatting callback function passed to ctf_dump. Returns either the pointer
3219 it is passed, or a pointer to newly-allocated storage, in which case
3220 dump_ctf() will free it when it no longer needs it. */
3221
3222 static char *
3223 dump_ctf_indent_lines (ctf_sect_names_t sect ATTRIBUTE_UNUSED,
3224 char *s, void *arg)
3225 {
3226 char *spaces = arg;
3227 char *new_s;
3228
3229 if (asprintf (&new_s, "%s%s", spaces, s) < 0)
3230 return s;
3231 return new_s;
3232 }
3233
3234 /* Make a ctfsect suitable for ctf_bfdopen_ctfsect(). */
3235
3236 static ctf_sect_t
3237 make_ctfsect (const char *name, bfd_byte *data,
3238 bfd_size_type size)
3239 {
3240 ctf_sect_t ctfsect;
3241
3242 ctfsect.cts_name = name;
3243 ctfsect.cts_type = SHT_PROGBITS;
3244 ctfsect.cts_flags = 0;
3245 ctfsect.cts_entsize = 1;
3246 ctfsect.cts_offset = 0;
3247 ctfsect.cts_size = size;
3248 ctfsect.cts_data = data;
3249
3250 return ctfsect;
3251 }
3252
3253 /* Dump one CTF archive member. */
3254
3255 static int
3256 dump_ctf_archive_member (ctf_file_t *ctf, const char *name, void *arg)
3257 {
3258 ctf_file_t *parent = (ctf_file_t *) arg;
3259 const char *things[] = {"Labels", "Data objects", "Function objects",
3260 "Variables", "Types", "Strings", ""};
3261 const char **thing;
3262 size_t i;
3263
3264 /* Only print out the name of non-default-named archive members.
3265 The name .ctf appears everywhere, even for things that aren't
3266 really archives, so printing it out is liable to be confusing. */
3267 if (strcmp (name, ".ctf") != 0)
3268 printf (_("\nCTF archive member: %s:\n"), sanitize_string (name));
3269
3270 ctf_import (ctf, parent);
3271 for (i = 1, thing = things; *thing[0]; thing++, i++)
3272 {
3273 ctf_dump_state_t *s = NULL;
3274 char *item;
3275
3276 printf ("\n %s:\n", *thing);
3277 while ((item = ctf_dump (ctf, &s, i, dump_ctf_indent_lines,
3278 (void *) " ")) != NULL)
3279 {
3280 printf ("%s\n", item);
3281 free (item);
3282 }
3283
3284 if (ctf_errno (ctf))
3285 {
3286 non_fatal (_("Iteration failed: %s, %s\n"), *thing,
3287 ctf_errmsg (ctf_errno (ctf)));
3288 break;
3289 }
3290 }
3291 return 0;
3292 }
3293
3294 /* Dump the CTF debugging information. */
3295
3296 static void
3297 dump_ctf (bfd *abfd, const char *sect_name, const char *parent_name)
3298 {
3299 ctf_archive_t *ctfa, *parenta = NULL;
3300 bfd_byte *ctfdata, *parentdata = NULL;
3301 bfd_size_type ctfsize, parentsize;
3302 ctf_sect_t ctfsect;
3303 ctf_file_t *parent = NULL;
3304 int err;
3305
3306 if ((ctfdata = read_section_stabs (abfd, sect_name, &ctfsize, NULL)) == NULL)
3307 bfd_fatal (bfd_get_filename (abfd));
3308
3309 if (parent_name
3310 && (parentdata = read_section_stabs (abfd, parent_name, &parentsize,
3311 NULL)) == NULL)
3312 bfd_fatal (bfd_get_filename (abfd));
3313
3314 /* Load the CTF file and dump it. */
3315
3316 ctfsect = make_ctfsect (sect_name, ctfdata, ctfsize);
3317 if ((ctfa = ctf_bfdopen_ctfsect (abfd, &ctfsect, &err)) == NULL)
3318 {
3319 non_fatal (_("CTF open failure: %s\n"), ctf_errmsg (err));
3320 bfd_fatal (bfd_get_filename (abfd));
3321 }
3322
3323 if (parentdata)
3324 {
3325 ctfsect = make_ctfsect (parent_name, parentdata, parentsize);
3326 if ((parenta = ctf_bfdopen_ctfsect (abfd, &ctfsect, &err)) == NULL)
3327 {
3328 non_fatal (_("CTF open failure: %s\n"), ctf_errmsg (err));
3329 bfd_fatal (bfd_get_filename (abfd));
3330 }
3331
3332 /* Assume that the applicable parent archive member is the default one.
3333 (This is what all known implementations are expected to do, if they
3334 put CTFs and their parents in archives together.) */
3335 if ((parent = ctf_arc_open_by_name (parenta, NULL, &err)) == NULL)
3336 {
3337 non_fatal (_("CTF open failure: %s\n"), ctf_errmsg (err));
3338 bfd_fatal (bfd_get_filename (abfd));
3339 }
3340 }
3341
3342 printf (_("Contents of CTF section %s:\n"), sanitize_string (sect_name));
3343
3344 ctf_archive_iter (ctfa, dump_ctf_archive_member, parent);
3345 ctf_file_close (parent);
3346 ctf_close (ctfa);
3347 ctf_close (parenta);
3348 free (parentdata);
3349 free (ctfdata);
3350 }
3351 #endif /* HAVE_LIBCTF */
3352
3353 static void
3354 dump_bfd_private_header (bfd *abfd)
3355 {
3356 if (!bfd_print_private_bfd_data (abfd, stdout))
3357 non_fatal (_("warning: private headers incomplete: %s"),
3358 bfd_errmsg (bfd_get_error ()));
3359 }
3360
3361 static void
3362 dump_target_specific (bfd *abfd)
3363 {
3364 const struct objdump_private_desc * const *desc;
3365 struct objdump_private_option *opt;
3366 char *e, *b;
3367
3368 /* Find the desc. */
3369 for (desc = objdump_private_vectors; *desc != NULL; desc++)
3370 if ((*desc)->filter (abfd))
3371 break;
3372
3373 if (*desc == NULL)
3374 {
3375 non_fatal (_("option -P/--private not supported by this file"));
3376 return;
3377 }
3378
3379 /* Clear all options. */
3380 for (opt = (*desc)->options; opt->name; opt++)
3381 opt->selected = FALSE;
3382
3383 /* Decode options. */
3384 b = dump_private_options;
3385 do
3386 {
3387 e = strchr (b, ',');
3388
3389 if (e)
3390 *e = 0;
3391
3392 for (opt = (*desc)->options; opt->name; opt++)
3393 if (strcmp (opt->name, b) == 0)
3394 {
3395 opt->selected = TRUE;
3396 break;
3397 }
3398 if (opt->name == NULL)
3399 non_fatal (_("target specific dump '%s' not supported"), b);
3400
3401 if (e)
3402 {
3403 *e = ',';
3404 b = e + 1;
3405 }
3406 }
3407 while (e != NULL);
3408
3409 /* Dump. */
3410 (*desc)->dump (abfd);
3411 }
3412 \f
3413 /* Display a section in hexadecimal format with associated characters.
3414 Each line prefixed by the zero padded address. */
3415
3416 static void
3417 dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
3418 {
3419 bfd_byte *data = NULL;
3420 bfd_size_type datasize;
3421 bfd_vma addr_offset;
3422 bfd_vma start_offset;
3423 bfd_vma stop_offset;
3424 unsigned int opb = bfd_octets_per_byte (abfd);
3425 /* Bytes per line. */
3426 const int onaline = 16;
3427 char buf[64];
3428 int count;
3429 int width;
3430
3431 if ((section->flags & SEC_HAS_CONTENTS) == 0)
3432 return;
3433
3434 if (! process_section_p (section))
3435 return;
3436
3437 if ((datasize = bfd_section_size (abfd, section)) == 0)
3438 return;
3439
3440 /* Compute the address range to display. */
3441 if (start_address == (bfd_vma) -1
3442 || start_address < section->vma)
3443 start_offset = 0;
3444 else
3445 start_offset = start_address - section->vma;
3446
3447 if (stop_address == (bfd_vma) -1)
3448 stop_offset = datasize / opb;
3449 else
3450 {
3451 if (stop_address < section->vma)
3452 stop_offset = 0;
3453 else
3454 stop_offset = stop_address - section->vma;
3455
3456 if (stop_offset > datasize / opb)
3457 stop_offset = datasize / opb;
3458 }
3459
3460 if (start_offset >= stop_offset)
3461 return;
3462
3463 printf (_("Contents of section %s:"), sanitize_string (section->name));
3464 if (display_file_offsets)
3465 printf (_(" (Starting at file offset: 0x%lx)"),
3466 (unsigned long) (section->filepos + start_offset));
3467 printf ("\n");
3468
3469 if (!bfd_get_full_section_contents (abfd, section, &data))
3470 {
3471 non_fatal (_("Reading section %s failed because: %s"),
3472 section->name, bfd_errmsg (bfd_get_error ()));
3473 return;
3474 }
3475
3476 width = 4;
3477
3478 bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
3479 if (strlen (buf) >= sizeof (buf))
3480 abort ();
3481
3482 count = 0;
3483 while (buf[count] == '0' && buf[count+1] != '\0')
3484 count++;
3485 count = strlen (buf) - count;
3486 if (count > width)
3487 width = count;
3488
3489 bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
3490 if (strlen (buf) >= sizeof (buf))
3491 abort ();
3492
3493 count = 0;
3494 while (buf[count] == '0' && buf[count+1] != '\0')
3495 count++;
3496 count = strlen (buf) - count;
3497 if (count > width)
3498 width = count;
3499
3500 for (addr_offset = start_offset;
3501 addr_offset < stop_offset; addr_offset += onaline / opb)
3502 {
3503 bfd_size_type j;
3504
3505 bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
3506 count = strlen (buf);
3507 if ((size_t) count >= sizeof (buf))
3508 abort ();
3509
3510 putchar (' ');
3511 while (count < width)
3512 {
3513 putchar ('0');
3514 count++;
3515 }
3516 fputs (buf + count - width, stdout);
3517 putchar (' ');
3518
3519 for (j = addr_offset * opb;
3520 j < addr_offset * opb + onaline; j++)
3521 {
3522 if (j < stop_offset * opb)
3523 printf ("%02x", (unsigned) (data[j]));
3524 else
3525 printf (" ");
3526 if ((j & 3) == 3)
3527 printf (" ");
3528 }
3529
3530 printf (" ");
3531 for (j = addr_offset * opb;
3532 j < addr_offset * opb + onaline; j++)
3533 {
3534 if (j >= stop_offset * opb)
3535 printf (" ");
3536 else
3537 printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
3538 }
3539 putchar ('\n');
3540 }
3541 free (data);
3542 }
3543
3544 /* Actually display the various requested regions. */
3545
3546 static void
3547 dump_data (bfd *abfd)
3548 {
3549 bfd_map_over_sections (abfd, dump_section, NULL);
3550 }
3551
3552 /* Should perhaps share code and display with nm? */
3553
3554 static void
3555 dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
3556 {
3557 asymbol **current;
3558 long max_count;
3559 long count;
3560
3561 if (dynamic)
3562 {
3563 current = dynsyms;
3564 max_count = dynsymcount;
3565 printf ("DYNAMIC SYMBOL TABLE:\n");
3566 }
3567 else
3568 {
3569 current = syms;
3570 max_count = symcount;
3571 printf ("SYMBOL TABLE:\n");
3572 }
3573
3574 if (max_count == 0)
3575 printf (_("no symbols\n"));
3576
3577 for (count = 0; count < max_count; count++)
3578 {
3579 bfd *cur_bfd;
3580
3581 if (*current == NULL)
3582 printf (_("no information for symbol number %ld\n"), count);
3583
3584 else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
3585 printf (_("could not determine the type of symbol number %ld\n"),
3586 count);
3587
3588 else if (process_section_p ((* current)->section)
3589 && (dump_special_syms
3590 || !bfd_is_target_special_symbol (cur_bfd, *current)))
3591 {
3592 const char *name = (*current)->name;
3593
3594 if (do_demangle && name != NULL && *name != '\0')
3595 {
3596 char *alloc;
3597
3598 /* If we want to demangle the name, we demangle it
3599 here, and temporarily clobber it while calling
3600 bfd_print_symbol. FIXME: This is a gross hack. */
3601 alloc = bfd_demangle (cur_bfd, name, demangle_flags);
3602 if (alloc != NULL)
3603 (*current)->name = alloc;
3604 bfd_print_symbol (cur_bfd, stdout, *current,
3605 bfd_print_symbol_all);
3606 if (alloc != NULL)
3607 {
3608 (*current)->name = name;
3609 free (alloc);
3610 }
3611 }
3612 else
3613 bfd_print_symbol (cur_bfd, stdout, *current,
3614 bfd_print_symbol_all);
3615 printf ("\n");
3616 }
3617
3618 current++;
3619 }
3620 printf ("\n\n");
3621 }
3622 \f
3623 static void
3624 dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount)
3625 {
3626 arelent **p;
3627 char *last_filename, *last_functionname;
3628 unsigned int last_line;
3629 unsigned int last_discriminator;
3630
3631 /* Get column headers lined up reasonably. */
3632 {
3633 static int width;
3634
3635 if (width == 0)
3636 {
3637 char buf[30];
3638
3639 bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
3640 width = strlen (buf) - 7;
3641 }
3642 printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
3643 }
3644
3645 last_filename = NULL;
3646 last_functionname = NULL;
3647 last_line = 0;
3648 last_discriminator = 0;
3649
3650 for (p = relpp; relcount && *p != NULL; p++, relcount--)
3651 {
3652 arelent *q = *p;
3653 const char *filename, *functionname;
3654 unsigned int linenumber;
3655 unsigned int discriminator;
3656 const char *sym_name;
3657 const char *section_name;
3658 bfd_vma addend2 = 0;
3659
3660 if (start_address != (bfd_vma) -1
3661 && q->address < start_address)
3662 continue;
3663 if (stop_address != (bfd_vma) -1
3664 && q->address > stop_address)
3665 continue;
3666
3667 if (with_line_numbers
3668 && sec != NULL
3669 && bfd_find_nearest_line_discriminator (abfd, sec, syms, q->address,
3670 &filename, &functionname,
3671 &linenumber, &discriminator))
3672 {
3673 if (functionname != NULL
3674 && (last_functionname == NULL
3675 || strcmp (functionname, last_functionname) != 0))
3676 {
3677 printf ("%s():\n", sanitize_string (functionname));
3678 if (last_functionname != NULL)
3679 free (last_functionname);
3680 last_functionname = xstrdup (functionname);
3681 }
3682
3683 if (linenumber > 0
3684 && (linenumber != last_line
3685 || (filename != NULL
3686 && last_filename != NULL
3687 && filename_cmp (filename, last_filename) != 0)
3688 || (discriminator != last_discriminator)))
3689 {
3690 if (discriminator > 0)
3691 printf ("%s:%u\n", filename == NULL ? "???" :
3692 sanitize_string (filename), linenumber);
3693 else
3694 printf ("%s:%u (discriminator %u)\n",
3695 filename == NULL ? "???" : sanitize_string (filename),
3696 linenumber, discriminator);
3697 last_line = linenumber;
3698 last_discriminator = discriminator;
3699 if (last_filename != NULL)
3700 free (last_filename);
3701 if (filename == NULL)
3702 last_filename = NULL;
3703 else
3704 last_filename = xstrdup (filename);
3705 }
3706 }
3707
3708 if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
3709 {
3710 sym_name = (*(q->sym_ptr_ptr))->name;
3711 section_name = (*(q->sym_ptr_ptr))->section->name;
3712 }
3713 else
3714 {
3715 sym_name = NULL;
3716 section_name = NULL;
3717 }
3718
3719 bfd_printf_vma (abfd, q->address);
3720 if (q->howto == NULL)
3721 printf (" *unknown* ");
3722 else if (q->howto->name)
3723 {
3724 const char *name = q->howto->name;
3725
3726 /* R_SPARC_OLO10 relocations contain two addends.
3727 But because 'arelent' lacks enough storage to
3728 store them both, the 64-bit ELF Sparc backend
3729 records this as two relocations. One R_SPARC_LO10
3730 and one R_SPARC_13, both pointing to the same
3731 address. This is merely so that we have some
3732 place to store both addend fields.
3733
3734 Undo this transformation, otherwise the output
3735 will be confusing. */
3736 if (abfd->xvec->flavour == bfd_target_elf_flavour
3737 && elf_tdata(abfd)->elf_header->e_machine == EM_SPARCV9
3738 && relcount > 1
3739 && !strcmp (q->howto->name, "R_SPARC_LO10"))
3740 {
3741 arelent *q2 = *(p + 1);
3742 if (q2 != NULL
3743 && q2->howto
3744 && q->address == q2->address
3745 && !strcmp (q2->howto->name, "R_SPARC_13"))
3746 {
3747 name = "R_SPARC_OLO10";
3748 addend2 = q2->addend;
3749 p++;
3750 }
3751 }
3752 printf (" %-16s ", name);
3753 }
3754 else
3755 printf (" %-16d ", q->howto->type);
3756
3757 if (sym_name)
3758 {
3759 objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
3760 }
3761 else
3762 {
3763 if (section_name == NULL)
3764 section_name = "*unknown*";
3765 printf ("[%s]", sanitize_string (section_name));
3766 }
3767
3768 if (q->addend)
3769 {
3770 bfd_signed_vma addend = q->addend;
3771 if (addend < 0)
3772 {
3773 printf ("-0x");
3774 addend = -addend;
3775 }
3776 else
3777 printf ("+0x");
3778 bfd_printf_vma (abfd, addend);
3779 }
3780 if (addend2)
3781 {
3782 printf ("+0x");
3783 bfd_printf_vma (abfd, addend2);
3784 }
3785
3786 printf ("\n");
3787 }
3788
3789 if (last_filename != NULL)
3790 free (last_filename);
3791 if (last_functionname != NULL)
3792 free (last_functionname);
3793 }
3794
3795 static void
3796 dump_relocs_in_section (bfd *abfd,
3797 asection *section,
3798 void *dummy ATTRIBUTE_UNUSED)
3799 {
3800 arelent **relpp = NULL;
3801 long relcount;
3802 long relsize;
3803
3804 if ( bfd_is_abs_section (section)
3805 || bfd_is_und_section (section)
3806 || bfd_is_com_section (section)
3807 || (! process_section_p (section))
3808 || ((section->flags & SEC_RELOC) == 0))
3809 return;
3810
3811 printf ("RELOCATION RECORDS FOR [%s]:", sanitize_string (section->name));
3812
3813 relsize = bfd_get_reloc_upper_bound (abfd, section);
3814 if (relsize == 0)
3815 {
3816 printf (" (none)\n\n");
3817 return;
3818 }
3819
3820 if (relsize < 0)
3821 relcount = relsize;
3822 else
3823 {
3824 relpp = (arelent **) xmalloc (relsize);
3825 relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
3826 }
3827
3828 if (relcount < 0)
3829 {
3830 printf ("\n");
3831 non_fatal (_("failed to read relocs in: %s"),
3832 sanitize_string (bfd_get_filename (abfd)));
3833 bfd_fatal (_("error message was"));
3834 }
3835 else if (relcount == 0)
3836 printf (" (none)\n\n");
3837 else
3838 {
3839 printf ("\n");
3840 dump_reloc_set (abfd, section, relpp, relcount);
3841 printf ("\n\n");
3842 }
3843 free (relpp);
3844 }
3845
3846 static void
3847 dump_relocs (bfd *abfd)
3848 {
3849 bfd_map_over_sections (abfd, dump_relocs_in_section, NULL);
3850 }
3851
3852 static void
3853 dump_dynamic_relocs (bfd *abfd)
3854 {
3855 long relsize;
3856 arelent **relpp;
3857 long relcount;
3858
3859 relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
3860 if (relsize < 0)
3861 bfd_fatal (bfd_get_filename (abfd));
3862
3863 printf ("DYNAMIC RELOCATION RECORDS");
3864
3865 if (relsize == 0)
3866 printf (" (none)\n\n");
3867 else
3868 {
3869 relpp = (arelent **) xmalloc (relsize);
3870 relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
3871
3872 if (relcount < 0)
3873 bfd_fatal (bfd_get_filename (abfd));
3874 else if (relcount == 0)
3875 printf (" (none)\n\n");
3876 else
3877 {
3878 printf ("\n");
3879 dump_reloc_set (abfd, NULL, relpp, relcount);
3880 printf ("\n\n");
3881 }
3882 free (relpp);
3883 }
3884 }
3885
3886 /* Creates a table of paths, to search for source files. */
3887
3888 static void
3889 add_include_path (const char *path)
3890 {
3891 if (path[0] == 0)
3892 return;
3893 include_path_count++;
3894 include_paths = (const char **)
3895 xrealloc (include_paths, include_path_count * sizeof (*include_paths));
3896 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3897 if (path[1] == ':' && path[2] == 0)
3898 path = concat (path, ".", (const char *) 0);
3899 #endif
3900 include_paths[include_path_count - 1] = path;
3901 }
3902
3903 static void
3904 adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
3905 asection *section,
3906 void *arg)
3907 {
3908 if ((section->flags & SEC_DEBUGGING) == 0)
3909 {
3910 bfd_boolean *has_reloc_p = (bfd_boolean *) arg;
3911 section->vma += adjust_section_vma;
3912 if (*has_reloc_p)
3913 section->lma += adjust_section_vma;
3914 }
3915 }
3916
3917 /* Return the sign-extended form of an ARCH_SIZE sized VMA. */
3918
3919 static bfd_vma
3920 sign_extend_address (bfd *abfd ATTRIBUTE_UNUSED,
3921 bfd_vma vma,
3922 unsigned arch_size)
3923 {
3924 bfd_vma mask;
3925 mask = (bfd_vma) 1 << (arch_size - 1);
3926 return (((vma & ((mask << 1) - 1)) ^ mask) - mask);
3927 }
3928
3929 /* Dump selected contents of ABFD. */
3930
3931 static void
3932 dump_bfd (bfd *abfd, bfd_boolean is_mainfile)
3933 {
3934 const struct elf_backend_data * bed;
3935
3936 if (bfd_big_endian (abfd))
3937 byte_get = byte_get_big_endian;
3938 else if (bfd_little_endian (abfd))
3939 byte_get = byte_get_little_endian;
3940 else
3941 byte_get = NULL;
3942
3943 /* Load any separate debug information files.
3944 We do this now and without checking do_follow_links because separate
3945 debug info files may contain symbol tables that we will need when
3946 displaying information about the main file. Any memory allocated by
3947 load_separate_debug_files will be released when we call
3948 free_debug_memory below.
3949
3950 The test on is_mainfile is there because the chain of separate debug
3951 info files is a global variable shared by all invocations of dump_bfd. */
3952 if (is_mainfile)
3953 {
3954 load_separate_debug_files (abfd, bfd_get_filename (abfd));
3955
3956 /* If asked to do so, recursively dump the separate files. */
3957 if (do_follow_links)
3958 {
3959 separate_info * i;
3960
3961 for (i = first_separate_info; i != NULL; i = i->next)
3962 dump_bfd (i->handle, FALSE);
3963 }
3964 }
3965
3966 /* Adjust user-specified start and stop limits for targets that use
3967 signed addresses. */
3968 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
3969 && (bed = get_elf_backend_data (abfd)) != NULL
3970 && bed->sign_extend_vma)
3971 {
3972 start_address = sign_extend_address (abfd, start_address,
3973 bed->s->arch_size);
3974 stop_address = sign_extend_address (abfd, stop_address,
3975 bed->s->arch_size);
3976 }
3977
3978 /* If we are adjusting section VMA's, change them all now. Changing
3979 the BFD information is a hack. However, we must do it, or
3980 bfd_find_nearest_line will not do the right thing. */
3981 if (adjust_section_vma != 0)
3982 {
3983 bfd_boolean has_reloc = (abfd->flags & HAS_RELOC);
3984 bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
3985 }
3986
3987 if (! dump_debugging_tags && ! suppress_bfd_header)
3988 printf (_("\n%s: file format %s\n"),
3989 sanitize_string (bfd_get_filename (abfd)),
3990 abfd->xvec->name);
3991 if (dump_ar_hdrs)
3992 print_arelt_descr (stdout, abfd, TRUE, FALSE);
3993 if (dump_file_header)
3994 dump_bfd_header (abfd);
3995 if (dump_private_headers)
3996 dump_bfd_private_header (abfd);
3997 if (dump_private_options != NULL)
3998 dump_target_specific (abfd);
3999 if (! dump_debugging_tags && ! suppress_bfd_header)
4000 putchar ('\n');
4001
4002 if (dump_symtab
4003 || dump_reloc_info
4004 || disassemble
4005 || dump_debugging
4006 || dump_dwarf_section_info)
4007 {
4008 syms = slurp_symtab (abfd);
4009
4010 /* If following links, load any symbol tables from the linked files as well. */
4011 if (do_follow_links && is_mainfile)
4012 {
4013 separate_info * i;
4014
4015 for (i = first_separate_info; i != NULL; i = i->next)
4016 {
4017 asymbol ** extra_syms;
4018 long old_symcount = symcount;
4019
4020 extra_syms = slurp_symtab (i->handle);
4021
4022 if (extra_syms)
4023 {
4024 if (old_symcount == 0)
4025 {
4026 syms = extra_syms;
4027 }
4028 else
4029 {
4030 syms = xrealloc (syms, (symcount + old_symcount) * sizeof (asymbol *));
4031 memcpy (syms + old_symcount,
4032 extra_syms,
4033 symcount * sizeof (asymbol *));
4034 }
4035 }
4036
4037 symcount += old_symcount;
4038 }
4039 }
4040 }
4041
4042 if (dump_section_headers)
4043 dump_headers (abfd);
4044
4045 if (dump_dynamic_symtab || dump_dynamic_reloc_info
4046 || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
4047 dynsyms = slurp_dynamic_symtab (abfd);
4048
4049 if (disassemble)
4050 {
4051 synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
4052 dynsymcount, dynsyms, &synthsyms);
4053 if (synthcount < 0)
4054 synthcount = 0;
4055 }
4056
4057 if (dump_symtab)
4058 dump_symbols (abfd, FALSE);
4059 if (dump_dynamic_symtab)
4060 dump_symbols (abfd, TRUE);
4061 if (dump_dwarf_section_info)
4062 dump_dwarf (abfd);
4063 #ifdef HAVE_LIBCTF
4064 if (dump_ctf_section_info)
4065 dump_ctf (abfd, dump_ctf_section_name, dump_ctf_parent_name);
4066 #endif
4067 if (dump_stab_section_info)
4068 dump_stabs (abfd);
4069 if (dump_reloc_info && ! disassemble)
4070 dump_relocs (abfd);
4071 if (dump_dynamic_reloc_info && ! disassemble)
4072 dump_dynamic_relocs (abfd);
4073 if (dump_section_contents)
4074 dump_data (abfd);
4075 if (disassemble)
4076 disassemble_data (abfd);
4077
4078 if (dump_debugging)
4079 {
4080 void *dhandle;
4081
4082 dhandle = read_debugging_info (abfd, syms, symcount, TRUE);
4083 if (dhandle != NULL)
4084 {
4085 if (!print_debugging_info (stdout, dhandle, abfd, syms,
4086 bfd_demangle,
4087 dump_debugging_tags ? TRUE : FALSE))
4088 {
4089 non_fatal (_("%s: printing debugging information failed"),
4090 bfd_get_filename (abfd));
4091 exit_status = 1;
4092 }
4093
4094 free (dhandle);
4095 }
4096 /* PR 6483: If there was no STABS debug info in the file, try
4097 DWARF instead. */
4098 else if (! dump_dwarf_section_info)
4099 {
4100 dwarf_select_sections_all ();
4101 dump_dwarf (abfd);
4102 }
4103 }
4104
4105 if (syms)
4106 {
4107 free (syms);
4108 syms = NULL;
4109 }
4110
4111 if (dynsyms)
4112 {
4113 free (dynsyms);
4114 dynsyms = NULL;
4115 }
4116
4117 if (synthsyms)
4118 {
4119 free (synthsyms);
4120 synthsyms = NULL;
4121 }
4122
4123 symcount = 0;
4124 dynsymcount = 0;
4125 synthcount = 0;
4126
4127 if (is_mainfile)
4128 free_debug_memory ();
4129 }
4130
4131 static void
4132 display_object_bfd (bfd *abfd)
4133 {
4134 char **matching;
4135
4136 if (bfd_check_format_matches (abfd, bfd_object, &matching))
4137 {
4138 dump_bfd (abfd, TRUE);
4139 return;
4140 }
4141
4142 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
4143 {
4144 nonfatal (bfd_get_filename (abfd));
4145 list_matching_formats (matching);
4146 free (matching);
4147 return;
4148 }
4149
4150 if (bfd_get_error () != bfd_error_file_not_recognized)
4151 {
4152 nonfatal (bfd_get_filename (abfd));
4153 return;
4154 }
4155
4156 if (bfd_check_format_matches (abfd, bfd_core, &matching))
4157 {
4158 dump_bfd (abfd, TRUE);
4159 return;
4160 }
4161
4162 nonfatal (bfd_get_filename (abfd));
4163
4164 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
4165 {
4166 list_matching_formats (matching);
4167 free (matching);
4168 }
4169 }
4170
4171 static void
4172 display_any_bfd (bfd *file, int level)
4173 {
4174 /* Decompress sections unless dumping the section contents. */
4175 if (!dump_section_contents)
4176 file->flags |= BFD_DECOMPRESS;
4177
4178 /* If the file is an archive, process all of its elements. */
4179 if (bfd_check_format (file, bfd_archive))
4180 {
4181 bfd *arfile = NULL;
4182 bfd *last_arfile = NULL;
4183
4184 if (level == 0)
4185 printf (_("In archive %s:\n"), sanitize_string (bfd_get_filename (file)));
4186 else if (level > 100)
4187 {
4188 /* Prevent corrupted files from spinning us into an
4189 infinite loop. 100 is an arbitrary heuristic. */
4190 fatal (_("Archive nesting is too deep"));
4191 return;
4192 }
4193 else
4194 printf (_("In nested archive %s:\n"),
4195 sanitize_string (bfd_get_filename (file)));
4196
4197 for (;;)
4198 {
4199 bfd_set_error (bfd_error_no_error);
4200
4201 arfile = bfd_openr_next_archived_file (file, arfile);
4202 if (arfile == NULL)
4203 {
4204 if (bfd_get_error () != bfd_error_no_more_archived_files)
4205 nonfatal (bfd_get_filename (file));
4206 break;
4207 }
4208
4209 display_any_bfd (arfile, level + 1);
4210
4211 if (last_arfile != NULL)
4212 {
4213 bfd_close (last_arfile);
4214 /* PR 17512: file: ac585d01. */
4215 if (arfile == last_arfile)
4216 {
4217 last_arfile = NULL;
4218 break;
4219 }
4220 }
4221 last_arfile = arfile;
4222 }
4223
4224 if (last_arfile != NULL)
4225 bfd_close (last_arfile);
4226 }
4227 else
4228 display_object_bfd (file);
4229 }
4230
4231 static void
4232 display_file (char *filename, char *target, bfd_boolean last_file)
4233 {
4234 bfd *file;
4235
4236 if (get_file_size (filename) < 1)
4237 {
4238 exit_status = 1;
4239 return;
4240 }
4241
4242 file = bfd_openr (filename, target);
4243 if (file == NULL)
4244 {
4245 nonfatal (filename);
4246 return;
4247 }
4248
4249 display_any_bfd (file, 0);
4250
4251 /* This is an optimization to improve the speed of objdump, especially when
4252 dumping a file with lots of associated debug informatiom. Calling
4253 bfd_close on such a file can take a non-trivial amount of time as there
4254 are lots of lists to walk and buffers to free. This is only really
4255 necessary however if we are about to load another file and we need the
4256 memory back. Otherwise, if we are about to exit, then we can save (a lot
4257 of) time by only doing a quick close, and allowing the OS to reclaim the
4258 memory for us. */
4259 if (! last_file)
4260 bfd_close (file);
4261 else
4262 bfd_close_all_done (file);
4263 }
4264 \f
4265 int
4266 main (int argc, char **argv)
4267 {
4268 int c;
4269 char *target = default_target;
4270 bfd_boolean seenflag = FALSE;
4271
4272 #if defined (HAVE_SETLOCALE)
4273 #if defined (HAVE_LC_MESSAGES)
4274 setlocale (LC_MESSAGES, "");
4275 #endif
4276 setlocale (LC_CTYPE, "");
4277 #endif
4278
4279 bindtextdomain (PACKAGE, LOCALEDIR);
4280 textdomain (PACKAGE);
4281
4282 program_name = *argv;
4283 xmalloc_set_program_name (program_name);
4284 bfd_set_error_program_name (program_name);
4285
4286 START_PROGRESS (program_name, 0);
4287
4288 expandargv (&argc, &argv);
4289
4290 if (bfd_init () != BFD_INIT_MAGIC)
4291 fatal (_("fatal error: libbfd ABI mismatch"));
4292 set_default_bfd_target ();
4293
4294 while ((c = getopt_long (argc, argv,
4295 "pP:ib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::",
4296 long_options, (int *) 0))
4297 != EOF)
4298 {
4299 switch (c)
4300 {
4301 case 0:
4302 break; /* We've been given a long option. */
4303 case 'm':
4304 machine = optarg;
4305 break;
4306 case 'M':
4307 {
4308 char *options;
4309 if (disassembler_options)
4310 /* Ignore potential memory leak for now. */
4311 options = concat (disassembler_options, ",",
4312 optarg, (const char *) NULL);
4313 else
4314 options = optarg;
4315 disassembler_options = remove_whitespace_and_extra_commas (options);
4316 }
4317 break;
4318 case 'j':
4319 add_only (optarg);
4320 break;
4321 case 'F':
4322 display_file_offsets = TRUE;
4323 break;
4324 case 'l':
4325 with_line_numbers = TRUE;
4326 break;
4327 case 'b':
4328 target = optarg;
4329 break;
4330 case 'C':
4331 do_demangle = TRUE;
4332 if (optarg != NULL)
4333 {
4334 enum demangling_styles style;
4335
4336 style = cplus_demangle_name_to_style (optarg);
4337 if (style == unknown_demangling)
4338 fatal (_("unknown demangling style `%s'"),
4339 optarg);
4340
4341 cplus_demangle_set_style (style);
4342 }
4343 break;
4344 case OPTION_RECURSE_LIMIT:
4345 demangle_flags &= ~ DMGL_NO_RECURSE_LIMIT;
4346 break;
4347 case OPTION_NO_RECURSE_LIMIT:
4348 demangle_flags |= DMGL_NO_RECURSE_LIMIT;
4349 break;
4350 case 'w':
4351 do_wide = wide_output = TRUE;
4352 break;
4353 case OPTION_ADJUST_VMA:
4354 adjust_section_vma = parse_vma (optarg, "--adjust-vma");
4355 break;
4356 case OPTION_START_ADDRESS:
4357 start_address = parse_vma (optarg, "--start-address");
4358 if ((stop_address != (bfd_vma) -1) && stop_address <= start_address)
4359 fatal (_("error: the start address should be before the end address"));
4360 break;
4361 case OPTION_STOP_ADDRESS:
4362 stop_address = parse_vma (optarg, "--stop-address");
4363 if ((start_address != (bfd_vma) -1) && stop_address <= start_address)
4364 fatal (_("error: the stop address should be after the start address"));
4365 break;
4366 case OPTION_PREFIX:
4367 prefix = optarg;
4368 prefix_length = strlen (prefix);
4369 /* Remove an unnecessary trailing '/' */
4370 while (IS_DIR_SEPARATOR (prefix[prefix_length - 1]))
4371 prefix_length--;
4372 break;
4373 case OPTION_PREFIX_STRIP:
4374 prefix_strip = atoi (optarg);
4375 if (prefix_strip < 0)
4376 fatal (_("error: prefix strip must be non-negative"));
4377 break;
4378 case OPTION_INSN_WIDTH:
4379 insn_width = strtoul (optarg, NULL, 0);
4380 if (insn_width <= 0)
4381 fatal (_("error: instruction width must be positive"));
4382 break;
4383 case OPTION_INLINES:
4384 unwind_inlines = TRUE;
4385 break;
4386 case 'E':
4387 if (strcmp (optarg, "B") == 0)
4388 endian = BFD_ENDIAN_BIG;
4389 else if (strcmp (optarg, "L") == 0)
4390 endian = BFD_ENDIAN_LITTLE;
4391 else
4392 {
4393 nonfatal (_("unrecognized -E option"));
4394 usage (stderr, 1);
4395 }
4396 break;
4397 case OPTION_ENDIAN:
4398 if (strncmp (optarg, "big", strlen (optarg)) == 0)
4399 endian = BFD_ENDIAN_BIG;
4400 else if (strncmp (optarg, "little", strlen (optarg)) == 0)
4401 endian = BFD_ENDIAN_LITTLE;
4402 else
4403 {
4404 non_fatal (_("unrecognized --endian type `%s'"), optarg);
4405 exit_status = 1;
4406 usage (stderr, 1);
4407 }
4408 break;
4409
4410 case 'f':
4411 dump_file_header = TRUE;
4412 seenflag = TRUE;
4413 break;
4414 case 'i':
4415 formats_info = TRUE;
4416 seenflag = TRUE;
4417 break;
4418 case 'I':
4419 add_include_path (optarg);
4420 break;
4421 case 'p':
4422 dump_private_headers = TRUE;
4423 seenflag = TRUE;
4424 break;
4425 case 'P':
4426 dump_private_options = optarg;
4427 seenflag = TRUE;
4428 break;
4429 case 'x':
4430 dump_private_headers = TRUE;
4431 dump_symtab = TRUE;
4432 dump_reloc_info = TRUE;
4433 dump_file_header = TRUE;
4434 dump_ar_hdrs = TRUE;
4435 dump_section_headers = TRUE;
4436 seenflag = TRUE;
4437 break;
4438 case 't':
4439 dump_symtab = TRUE;
4440 seenflag = TRUE;
4441 break;
4442 case 'T':
4443 dump_dynamic_symtab = TRUE;
4444 seenflag = TRUE;
4445 break;
4446 case 'd':
4447 disassemble = TRUE;
4448 seenflag = TRUE;
4449 disasm_sym = optarg;
4450 break;
4451 case 'z':
4452 disassemble_zeroes = TRUE;
4453 break;
4454 case 'D':
4455 disassemble = TRUE;
4456 disassemble_all = TRUE;
4457 seenflag = TRUE;
4458 break;
4459 case 'S':
4460 disassemble = TRUE;
4461 with_source_code = TRUE;
4462 seenflag = TRUE;
4463 break;
4464 case 'g':
4465 dump_debugging = 1;
4466 seenflag = TRUE;
4467 break;
4468 case 'e':
4469 dump_debugging = 1;
4470 dump_debugging_tags = 1;
4471 do_demangle = TRUE;
4472 seenflag = TRUE;
4473 break;
4474 case 'W':
4475 dump_dwarf_section_info = TRUE;
4476 seenflag = TRUE;
4477 if (optarg)
4478 dwarf_select_sections_by_letters (optarg);
4479 else
4480 dwarf_select_sections_all ();
4481 break;
4482 case OPTION_DWARF:
4483 dump_dwarf_section_info = TRUE;
4484 seenflag = TRUE;
4485 if (optarg)
4486 dwarf_select_sections_by_names (optarg);
4487 else
4488 dwarf_select_sections_all ();
4489 break;
4490 case OPTION_DWARF_DEPTH:
4491 {
4492 char *cp;
4493 dwarf_cutoff_level = strtoul (optarg, & cp, 0);
4494 }
4495 break;
4496 case OPTION_DWARF_START:
4497 {
4498 char *cp;
4499 dwarf_start_die = strtoul (optarg, & cp, 0);
4500 suppress_bfd_header = 1;
4501 }
4502 break;
4503 case OPTION_DWARF_CHECK:
4504 dwarf_check = TRUE;
4505 break;
4506 #ifdef HAVE_LIBCTF
4507 case OPTION_CTF:
4508 dump_ctf_section_info = TRUE;
4509 dump_ctf_section_name = xstrdup (optarg);
4510 seenflag = TRUE;
4511 break;
4512 case OPTION_CTF_PARENT:
4513 dump_ctf_parent_name = xstrdup (optarg);
4514 break;
4515 #endif
4516 case 'G':
4517 dump_stab_section_info = TRUE;
4518 seenflag = TRUE;
4519 break;
4520 case 's':
4521 dump_section_contents = TRUE;
4522 seenflag = TRUE;
4523 break;
4524 case 'r':
4525 dump_reloc_info = TRUE;
4526 seenflag = TRUE;
4527 break;
4528 case 'R':
4529 dump_dynamic_reloc_info = TRUE;
4530 seenflag = TRUE;
4531 break;
4532 case 'a':
4533 dump_ar_hdrs = TRUE;
4534 seenflag = TRUE;
4535 break;
4536 case 'h':
4537 dump_section_headers = TRUE;
4538 seenflag = TRUE;
4539 break;
4540 case 'v':
4541 case 'V':
4542 show_version = TRUE;
4543 seenflag = TRUE;
4544 break;
4545
4546 case 'H':
4547 usage (stdout, 0);
4548 /* No need to set seenflag or to break - usage() does not return. */
4549 default:
4550 usage (stderr, 1);
4551 }
4552 }
4553
4554 if (show_version)
4555 print_version ("objdump");
4556
4557 if (!seenflag)
4558 usage (stderr, 2);
4559
4560 if (formats_info)
4561 exit_status = display_info ();
4562 else
4563 {
4564 if (optind == argc)
4565 display_file ("a.out", target, TRUE);
4566 else
4567 for (; optind < argc;)
4568 {
4569 display_file (argv[optind], target, optind == argc - 1);
4570 optind++;
4571 }
4572 }
4573
4574 free_only_list ();
4575 #ifdef HAVE_LIBCTF
4576 free (dump_ctf_section_name);
4577 free (dump_ctf_parent_name);
4578 #endif
4579 END_PROGRESS (program_name);
4580
4581 return exit_status;
4582 }
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