1 /* objdump.c -- dump information about an object file.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
26 Objdump displays information about one or more object files, either on
27 their own, or inside libraries. It is commonly used as a disassembler,
28 but it can also display information about file headers, symbol tables,
29 relocations, debugging directives and more.
31 The flow of execution is as follows:
33 1. Command line arguments are checked for control switches and the
34 information to be displayed is selected.
36 2. Any remaining arguments are assumed to be object files, and they are
37 processed in order by display_bfd(). If the file is an archive each
38 of its elements is processed in turn.
40 3. The file's target architecture and binary file format are determined
41 by bfd_check_format(). If they are recognised, then dump_bfd() is
44 4. dump_bfd() in turn calls separate functions to display the requested
45 item(s) of information(s). For example disassemble_data() is called if
46 a disassembly has been requested.
48 When disassembling the code loops through blocks of instructions bounded
49 by symbols, calling disassemble_bytes() on each block. The actual
50 disassembling is done by the libopcodes library, via a function pointer
51 supplied by the disassembler() function. */
60 #include "safe-ctype.h"
62 #include "libiberty.h"
73 /* Internal headers for the ELF .stab-dump code - sorry. */
74 #define BYTES_IN_WORD 32
75 #include "aout/aout64.h"
78 static int exit_status
= 0;
80 static char *default_target
= NULL
; /* Default at runtime. */
82 /* The following variables are set based on arguments passed on the
84 static int show_version
= 0; /* Show the version number. */
85 static int dump_section_contents
; /* -s */
86 static int dump_section_headers
; /* -h */
87 static bfd_boolean dump_file_header
; /* -f */
88 static int dump_symtab
; /* -t */
89 static int dump_dynamic_symtab
; /* -T */
90 static int dump_reloc_info
; /* -r */
91 static int dump_dynamic_reloc_info
; /* -R */
92 static int dump_ar_hdrs
; /* -a */
93 static int dump_private_headers
; /* -p */
94 static int prefix_addresses
; /* --prefix-addresses */
95 static int with_line_numbers
; /* -l */
96 static bfd_boolean with_source_code
; /* -S */
97 static int show_raw_insn
; /* --show-raw-insn */
98 static int dump_dwarf_section_info
; /* --dwarf */
99 static int dump_stab_section_info
; /* --stabs */
100 static int do_demangle
; /* -C, --demangle */
101 static bfd_boolean disassemble
; /* -d */
102 static bfd_boolean disassemble_all
; /* -D */
103 static int disassemble_zeroes
; /* --disassemble-zeroes */
104 static bfd_boolean formats_info
; /* -i */
105 static int wide_output
; /* -w */
106 static bfd_vma start_address
= (bfd_vma
) -1; /* --start-address */
107 static bfd_vma stop_address
= (bfd_vma
) -1; /* --stop-address */
108 static int dump_debugging
; /* --debugging */
109 static int dump_debugging_tags
; /* --debugging-tags */
110 static int dump_special_syms
= 0; /* --special-syms */
111 static bfd_vma adjust_section_vma
= 0; /* --adjust-vma */
112 static int file_start_context
= 0; /* --file-start-context */
113 static bfd_boolean display_file_offsets
;/* -F */
115 /* Pointer to an array of section names provided by
116 one or more "-j secname" command line options. */
118 /* The total number of slots in the only[] array. */
119 static size_t only_size
= 0;
120 /* The number of occupied slots in the only[] array. */
121 static size_t only_used
= 0;
123 /* Variables for handling include file path table. */
124 static const char **include_paths
;
125 static int include_path_count
;
127 /* Extra info to pass to the section disassembler and address printing
129 struct objdump_disasm_info
133 bfd_boolean require_sec
;
134 arelent
** dynrelbuf
;
136 disassembler_ftype disassemble_fn
;
140 /* Architecture to disassemble for, or default if NULL. */
141 static char *machine
= NULL
;
143 /* Target specific options to the disassembler. */
144 static char *disassembler_options
= NULL
;
146 /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
147 static enum bfd_endian endian
= BFD_ENDIAN_UNKNOWN
;
149 /* The symbol table. */
150 static asymbol
**syms
;
152 /* Number of symbols in `syms'. */
153 static long symcount
= 0;
155 /* The sorted symbol table. */
156 static asymbol
**sorted_syms
;
158 /* Number of symbols in `sorted_syms'. */
159 static long sorted_symcount
= 0;
161 /* The dynamic symbol table. */
162 static asymbol
**dynsyms
;
164 /* The synthetic symbol table. */
165 static asymbol
*synthsyms
;
166 static long synthcount
= 0;
168 /* Number of symbols in `dynsyms'. */
169 static long dynsymcount
= 0;
171 static bfd_byte
*stabs
;
172 static bfd_size_type stab_size
;
175 static bfd_size_type stabstr_size
;
177 static bfd_boolean is_relocatable
= FALSE
;
180 usage (FILE *stream
, int status
)
182 fprintf (stream
, _("Usage: %s <option(s)> <file(s)>\n"), program_name
);
183 fprintf (stream
, _(" Display information from object <file(s)>.\n"));
184 fprintf (stream
, _(" At least one of the following switches must be given:\n"));
185 fprintf (stream
, _("\
186 -a, --archive-headers Display archive header information\n\
187 -f, --file-headers Display the contents of the overall file header\n\
188 -p, --private-headers Display object format specific file header contents\n\
189 -h, --[section-]headers Display the contents of the section headers\n\
190 -x, --all-headers Display the contents of all headers\n\
191 -d, --disassemble Display assembler contents of executable sections\n\
192 -D, --disassemble-all Display assembler contents of all sections\n\
193 -S, --source Intermix source code with disassembly\n\
194 -s, --full-contents Display the full contents of all sections requested\n\
195 -g, --debugging Display debug information in object file\n\
196 -e, --debugging-tags Display debug information using ctags style\n\
197 -G, --stabs Display (in raw form) any STABS info in the file\n\
198 -W, --dwarf Display DWARF info in the file\n\
199 -t, --syms Display the contents of the symbol table(s)\n\
200 -T, --dynamic-syms Display the contents of the dynamic symbol table\n\
201 -r, --reloc Display the relocation entries in the file\n\
202 -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
203 @<file> Read options from <file>\n\
204 -v, --version Display this program's version number\n\
205 -i, --info List object formats and architectures supported\n\
206 -H, --help Display this information\n\
210 fprintf (stream
, _("\n The following switches are optional:\n"));
211 fprintf (stream
, _("\
212 -b, --target=BFDNAME Specify the target object format as BFDNAME\n\
213 -m, --architecture=MACHINE Specify the target architecture as MACHINE\n\
214 -j, --section=NAME Only display information for section NAME\n\
215 -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n\
216 -EB --endian=big Assume big endian format when disassembling\n\
217 -EL --endian=little Assume little endian format when disassembling\n\
218 --file-start-context Include context from start of file (with -S)\n\
219 -I, --include=DIR Add DIR to search list for source files\n\
220 -l, --line-numbers Include line numbers and filenames in output\n\
221 -F, --file-offsets Include file offsets when displaying information\n\
222 -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
223 The STYLE, if specified, can be `auto', `gnu',\n\
224 `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
226 -w, --wide Format output for more than 80 columns\n\
227 -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
228 --start-address=ADDR Only process data whose address is >= ADDR\n\
229 --stop-address=ADDR Only process data whose address is <= ADDR\n\
230 --prefix-addresses Print complete address alongside disassembly\n\
231 --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
232 --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
233 --special-syms Include special symbols in symbol dumps\n\
235 list_supported_targets (program_name
, stream
);
236 list_supported_architectures (program_name
, stream
);
238 disassembler_usage (stream
);
240 if (REPORT_BUGS_TO
[0] && status
== 0)
241 fprintf (stream
, _("Report bugs to %s.\n"), REPORT_BUGS_TO
);
245 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
249 OPTION_START_ADDRESS
,
254 static struct option long_options
[]=
256 {"adjust-vma", required_argument
, NULL
, OPTION_ADJUST_VMA
},
257 {"all-headers", no_argument
, NULL
, 'x'},
258 {"private-headers", no_argument
, NULL
, 'p'},
259 {"architecture", required_argument
, NULL
, 'm'},
260 {"archive-headers", no_argument
, NULL
, 'a'},
261 {"debugging", no_argument
, NULL
, 'g'},
262 {"debugging-tags", no_argument
, NULL
, 'e'},
263 {"demangle", optional_argument
, NULL
, 'C'},
264 {"disassemble", no_argument
, NULL
, 'd'},
265 {"disassemble-all", no_argument
, NULL
, 'D'},
266 {"disassembler-options", required_argument
, NULL
, 'M'},
267 {"disassemble-zeroes", no_argument
, NULL
, 'z'},
268 {"dynamic-reloc", no_argument
, NULL
, 'R'},
269 {"dynamic-syms", no_argument
, NULL
, 'T'},
270 {"endian", required_argument
, NULL
, OPTION_ENDIAN
},
271 {"file-headers", no_argument
, NULL
, 'f'},
272 {"file-offsets", no_argument
, NULL
, 'F'},
273 {"file-start-context", no_argument
, &file_start_context
, 1},
274 {"full-contents", no_argument
, NULL
, 's'},
275 {"headers", no_argument
, NULL
, 'h'},
276 {"help", no_argument
, NULL
, 'H'},
277 {"info", no_argument
, NULL
, 'i'},
278 {"line-numbers", no_argument
, NULL
, 'l'},
279 {"no-show-raw-insn", no_argument
, &show_raw_insn
, -1},
280 {"prefix-addresses", no_argument
, &prefix_addresses
, 1},
281 {"reloc", no_argument
, NULL
, 'r'},
282 {"section", required_argument
, NULL
, 'j'},
283 {"section-headers", no_argument
, NULL
, 'h'},
284 {"show-raw-insn", no_argument
, &show_raw_insn
, 1},
285 {"source", no_argument
, NULL
, 'S'},
286 {"special-syms", no_argument
, &dump_special_syms
, 1},
287 {"include", required_argument
, NULL
, 'I'},
288 {"dwarf", no_argument
, NULL
, 'W'},
289 {"stabs", no_argument
, NULL
, 'G'},
290 {"start-address", required_argument
, NULL
, OPTION_START_ADDRESS
},
291 {"stop-address", required_argument
, NULL
, OPTION_STOP_ADDRESS
},
292 {"syms", no_argument
, NULL
, 't'},
293 {"target", required_argument
, NULL
, 'b'},
294 {"version", no_argument
, NULL
, 'V'},
295 {"wide", no_argument
, NULL
, 'w'},
296 {0, no_argument
, 0, 0}
300 nonfatal (const char *msg
)
307 dump_section_header (bfd
*abfd
, asection
*section
,
308 void *ignored ATTRIBUTE_UNUSED
)
311 unsigned int opb
= bfd_octets_per_byte (abfd
);
313 /* Ignore linker created section. See elfNN_ia64_object_p in
315 if (section
->flags
& SEC_LINKER_CREATED
)
318 printf ("%3d %-13s %08lx ", section
->index
,
319 bfd_get_section_name (abfd
, section
),
320 (unsigned long) bfd_section_size (abfd
, section
) / opb
);
321 bfd_printf_vma (abfd
, bfd_get_section_vma (abfd
, section
));
323 bfd_printf_vma (abfd
, section
->lma
);
324 printf (" %08lx 2**%u", (unsigned long) section
->filepos
,
325 bfd_get_section_alignment (abfd
, section
));
331 if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
333 PF (SEC_HAS_CONTENTS
, "CONTENTS");
334 PF (SEC_ALLOC
, "ALLOC");
335 PF (SEC_CONSTRUCTOR
, "CONSTRUCTOR");
336 PF (SEC_LOAD
, "LOAD");
337 PF (SEC_RELOC
, "RELOC");
338 PF (SEC_READONLY
, "READONLY");
339 PF (SEC_CODE
, "CODE");
340 PF (SEC_DATA
, "DATA");
342 PF (SEC_DEBUGGING
, "DEBUGGING");
343 PF (SEC_NEVER_LOAD
, "NEVER_LOAD");
344 PF (SEC_EXCLUDE
, "EXCLUDE");
345 PF (SEC_SORT_ENTRIES
, "SORT_ENTRIES");
346 if (bfd_get_arch (abfd
) == bfd_arch_tic54x
)
348 PF (SEC_TIC54X_BLOCK
, "BLOCK");
349 PF (SEC_TIC54X_CLINK
, "CLINK");
351 PF (SEC_SMALL_DATA
, "SMALL_DATA");
352 if (bfd_get_flavour (abfd
) == bfd_target_coff_flavour
)
353 PF (SEC_COFF_SHARED
, "SHARED");
354 PF (SEC_THREAD_LOCAL
, "THREAD_LOCAL");
355 PF (SEC_GROUP
, "GROUP");
357 if ((section
->flags
& SEC_LINK_ONCE
) != 0)
360 struct coff_comdat_info
*comdat
;
362 switch (section
->flags
& SEC_LINK_DUPLICATES
)
366 case SEC_LINK_DUPLICATES_DISCARD
:
367 ls
= "LINK_ONCE_DISCARD";
369 case SEC_LINK_DUPLICATES_ONE_ONLY
:
370 ls
= "LINK_ONCE_ONE_ONLY";
372 case SEC_LINK_DUPLICATES_SAME_SIZE
:
373 ls
= "LINK_ONCE_SAME_SIZE";
375 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
376 ls
= "LINK_ONCE_SAME_CONTENTS";
379 printf ("%s%s", comma
, ls
);
381 comdat
= bfd_coff_get_comdat_section (abfd
, section
);
383 printf (" (COMDAT %s %ld)", comdat
->name
, comdat
->symbol
);
393 dump_headers (bfd
*abfd
)
395 printf (_("Sections:\n"));
398 printf (_("Idx Name Size VMA LMA File off Algn"));
400 /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */
401 if (bfd_get_arch_size (abfd
) == 32)
402 printf (_("Idx Name Size VMA LMA File off Algn"));
404 printf (_("Idx Name Size VMA LMA File off Algn"));
408 printf (_(" Flags"));
409 if (abfd
->flags
& HAS_LOAD_PAGE
)
413 bfd_map_over_sections (abfd
, dump_section_header
, NULL
);
417 slurp_symtab (bfd
*abfd
)
422 if (!(bfd_get_file_flags (abfd
) & HAS_SYMS
))
428 storage
= bfd_get_symtab_upper_bound (abfd
);
430 bfd_fatal (bfd_get_filename (abfd
));
432 sy
= xmalloc (storage
);
434 symcount
= bfd_canonicalize_symtab (abfd
, sy
);
436 bfd_fatal (bfd_get_filename (abfd
));
440 /* Read in the dynamic symbols. */
443 slurp_dynamic_symtab (bfd
*abfd
)
448 storage
= bfd_get_dynamic_symtab_upper_bound (abfd
);
451 if (!(bfd_get_file_flags (abfd
) & DYNAMIC
))
453 non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd
));
458 bfd_fatal (bfd_get_filename (abfd
));
461 sy
= xmalloc (storage
);
463 dynsymcount
= bfd_canonicalize_dynamic_symtab (abfd
, sy
);
465 bfd_fatal (bfd_get_filename (abfd
));
469 /* Filter out (in place) symbols that are useless for disassembly.
470 COUNT is the number of elements in SYMBOLS.
471 Return the number of useful symbols. */
474 remove_useless_symbols (asymbol
**symbols
, long count
)
476 asymbol
**in_ptr
= symbols
, **out_ptr
= symbols
;
480 asymbol
*sym
= *in_ptr
++;
482 if (sym
->name
== NULL
|| sym
->name
[0] == '\0')
484 if (sym
->flags
& (BSF_DEBUGGING
| BSF_SECTION_SYM
))
486 if (bfd_is_und_section (sym
->section
)
487 || bfd_is_com_section (sym
->section
))
492 return out_ptr
- symbols
;
495 /* Sort symbols into value order. */
498 compare_symbols (const void *ap
, const void *bp
)
500 const asymbol
*a
= * (const asymbol
**) ap
;
501 const asymbol
*b
= * (const asymbol
**) bp
;
511 if (bfd_asymbol_value (a
) > bfd_asymbol_value (b
))
513 else if (bfd_asymbol_value (a
) < bfd_asymbol_value (b
))
516 if (a
->section
> b
->section
)
518 else if (a
->section
< b
->section
)
521 an
= bfd_asymbol_name (a
);
522 bn
= bfd_asymbol_name (b
);
526 /* The symbols gnu_compiled and gcc2_compiled convey no real
527 information, so put them after other symbols with the same value. */
528 af
= (strstr (an
, "gnu_compiled") != NULL
529 || strstr (an
, "gcc2_compiled") != NULL
);
530 bf
= (strstr (bn
, "gnu_compiled") != NULL
531 || strstr (bn
, "gcc2_compiled") != NULL
);
538 /* We use a heuristic for the file name, to try to sort it after
539 more useful symbols. It may not work on non Unix systems, but it
540 doesn't really matter; the only difference is precisely which
541 symbol names get printed. */
543 #define file_symbol(s, sn, snl) \
544 (((s)->flags & BSF_FILE) != 0 \
545 || ((sn)[(snl) - 2] == '.' \
546 && ((sn)[(snl) - 1] == 'o' \
547 || (sn)[(snl) - 1] == 'a')))
549 af
= file_symbol (a
, an
, anl
);
550 bf
= file_symbol (b
, bn
, bnl
);
557 /* Try to sort global symbols before local symbols before function
558 symbols before debugging symbols. */
563 if ((aflags
& BSF_DEBUGGING
) != (bflags
& BSF_DEBUGGING
))
565 if ((aflags
& BSF_DEBUGGING
) != 0)
570 if ((aflags
& BSF_FUNCTION
) != (bflags
& BSF_FUNCTION
))
572 if ((aflags
& BSF_FUNCTION
) != 0)
577 if ((aflags
& BSF_LOCAL
) != (bflags
& BSF_LOCAL
))
579 if ((aflags
& BSF_LOCAL
) != 0)
584 if ((aflags
& BSF_GLOBAL
) != (bflags
& BSF_GLOBAL
))
586 if ((aflags
& BSF_GLOBAL
) != 0)
592 /* Symbols that start with '.' might be section names, so sort them
593 after symbols that don't start with '.'. */
594 if (an
[0] == '.' && bn
[0] != '.')
596 if (an
[0] != '.' && bn
[0] == '.')
599 /* Finally, if we can't distinguish them in any other way, try to
600 get consistent results by sorting the symbols by name. */
601 return strcmp (an
, bn
);
604 /* Sort relocs into address order. */
607 compare_relocs (const void *ap
, const void *bp
)
609 const arelent
*a
= * (const arelent
**) ap
;
610 const arelent
*b
= * (const arelent
**) bp
;
612 if (a
->address
> b
->address
)
614 else if (a
->address
< b
->address
)
617 /* So that associated relocations tied to the same address show up
618 in the correct order, we don't do any further sorting. */
627 /* Print an address (VMA) to the output stream in INFO.
628 If SKIP_ZEROES is TRUE, omit leading zeroes. */
631 objdump_print_value (bfd_vma vma
, struct disassemble_info
*info
,
632 bfd_boolean skip_zeroes
)
636 struct objdump_disasm_info
*aux
;
638 aux
= (struct objdump_disasm_info
*) info
->application_data
;
639 bfd_sprintf_vma (aux
->abfd
, buf
, vma
);
644 for (p
= buf
; *p
== '0'; ++p
)
649 (*info
->fprintf_func
) (info
->stream
, "%s", p
);
652 /* Print the name of a symbol. */
655 objdump_print_symname (bfd
*abfd
, struct disassemble_info
*info
,
662 name
= bfd_asymbol_name (sym
);
663 if (do_demangle
&& name
[0] != '\0')
665 /* Demangle the name. */
666 alloc
= bfd_demangle (abfd
, name
, DMGL_ANSI
| DMGL_PARAMS
);
672 (*info
->fprintf_func
) (info
->stream
, "%s", name
);
680 /* Locate a symbol given a bfd and a section (from INFO->application_data),
681 and a VMA. If INFO->application_data->require_sec is TRUE, then always
682 require the symbol to be in the section. Returns NULL if there is no
683 suitable symbol. If PLACE is not NULL, then *PLACE is set to the index
684 of the symbol in sorted_syms. */
687 find_symbol_for_address (bfd_vma vma
,
688 struct disassemble_info
*info
,
691 /* @@ Would it speed things up to cache the last two symbols returned,
692 and maybe their address ranges? For many processors, only one memory
693 operand can be present at a time, so the 2-entry cache wouldn't be
694 constantly churned by code doing heavy memory accesses. */
696 /* Indices in `sorted_syms'. */
698 long max
= sorted_symcount
;
700 struct objdump_disasm_info
*aux
;
704 bfd_boolean want_section
;
706 if (sorted_symcount
< 1)
709 aux
= (struct objdump_disasm_info
*) info
->application_data
;
712 opb
= bfd_octets_per_byte (abfd
);
714 /* Perform a binary search looking for the closest symbol to the
715 required value. We are searching the range (min, max]. */
716 while (min
+ 1 < max
)
720 thisplace
= (max
+ min
) / 2;
721 sym
= sorted_syms
[thisplace
];
723 if (bfd_asymbol_value (sym
) > vma
)
725 else if (bfd_asymbol_value (sym
) < vma
)
734 /* The symbol we want is now in min, the low end of the range we
735 were searching. If there are several symbols with the same
736 value, we want the first one. */
739 && (bfd_asymbol_value (sorted_syms
[thisplace
])
740 == bfd_asymbol_value (sorted_syms
[thisplace
- 1])))
743 /* Prefer a symbol in the current section if we have multple symbols
744 with the same value, as can occur with overlays or zero size
748 && (bfd_asymbol_value (sorted_syms
[min
])
749 == bfd_asymbol_value (sorted_syms
[thisplace
])))
751 if (sorted_syms
[min
]->section
== sec
752 && info
->symbol_is_valid (sorted_syms
[min
], info
))
759 return sorted_syms
[thisplace
];
764 /* If the file is relocatable, and the symbol could be from this
765 section, prefer a symbol from this section over symbols from
766 others, even if the other symbol's value might be closer.
768 Note that this may be wrong for some symbol references if the
769 sections have overlapping memory ranges, but in that case there's
770 no way to tell what's desired without looking at the relocation
773 Also give the target a chance to reject symbols. */
774 want_section
= (aux
->require_sec
775 || ((abfd
->flags
& HAS_RELOC
) != 0
776 && vma
>= bfd_get_section_vma (abfd
, sec
)
777 && vma
< (bfd_get_section_vma (abfd
, sec
)
778 + bfd_section_size (abfd
, sec
) / opb
)));
779 if ((sorted_syms
[thisplace
]->section
!= sec
&& want_section
)
780 || !info
->symbol_is_valid (sorted_syms
[thisplace
], info
))
783 long newplace
= sorted_symcount
;
785 for (i
= min
- 1; i
>= 0; i
--)
787 if ((sorted_syms
[i
]->section
== sec
|| !want_section
)
788 && info
->symbol_is_valid (sorted_syms
[i
], info
))
790 if (newplace
== sorted_symcount
)
793 if (bfd_asymbol_value (sorted_syms
[i
])
794 != bfd_asymbol_value (sorted_syms
[newplace
]))
797 /* Remember this symbol and keep searching until we reach
798 an earlier address. */
803 if (newplace
!= sorted_symcount
)
804 thisplace
= newplace
;
807 /* We didn't find a good symbol with a smaller value.
808 Look for one with a larger value. */
809 for (i
= thisplace
+ 1; i
< sorted_symcount
; i
++)
811 if ((sorted_syms
[i
]->section
== sec
|| !want_section
)
812 && info
->symbol_is_valid (sorted_syms
[i
], info
))
820 if ((sorted_syms
[thisplace
]->section
!= sec
&& want_section
)
821 || !info
->symbol_is_valid (sorted_syms
[thisplace
], info
))
822 /* There is no suitable symbol. */
829 return sorted_syms
[thisplace
];
832 /* Print an address and the offset to the nearest symbol. */
835 objdump_print_addr_with_sym (bfd
*abfd
, asection
*sec
, asymbol
*sym
,
836 bfd_vma vma
, struct disassemble_info
*info
,
837 bfd_boolean skip_zeroes
)
839 objdump_print_value (vma
, info
, skip_zeroes
);
845 (*info
->fprintf_func
) (info
->stream
, " <%s",
846 bfd_get_section_name (abfd
, sec
));
847 secaddr
= bfd_get_section_vma (abfd
, sec
);
850 (*info
->fprintf_func
) (info
->stream
, "-0x");
851 objdump_print_value (secaddr
- vma
, info
, TRUE
);
853 else if (vma
> secaddr
)
855 (*info
->fprintf_func
) (info
->stream
, "+0x");
856 objdump_print_value (vma
- secaddr
, info
, TRUE
);
858 (*info
->fprintf_func
) (info
->stream
, ">");
862 (*info
->fprintf_func
) (info
->stream
, " <");
863 objdump_print_symname (abfd
, info
, sym
);
864 if (bfd_asymbol_value (sym
) > vma
)
866 (*info
->fprintf_func
) (info
->stream
, "-0x");
867 objdump_print_value (bfd_asymbol_value (sym
) - vma
, info
, TRUE
);
869 else if (vma
> bfd_asymbol_value (sym
))
871 (*info
->fprintf_func
) (info
->stream
, "+0x");
872 objdump_print_value (vma
- bfd_asymbol_value (sym
), info
, TRUE
);
874 (*info
->fprintf_func
) (info
->stream
, ">");
877 if (display_file_offsets
)
878 info
->fprintf_func (info
->stream
, _(" (File Offset: 0x%lx)"),
879 (long int)(sec
->filepos
+ (vma
- sec
->vma
)));
882 /* Print an address (VMA), symbolically if possible.
883 If SKIP_ZEROES is TRUE, don't output leading zeroes. */
886 objdump_print_addr (bfd_vma vma
,
887 struct disassemble_info
*info
,
888 bfd_boolean skip_zeroes
)
890 struct objdump_disasm_info
*aux
;
892 bfd_boolean skip_find
= FALSE
;
894 aux
= (struct objdump_disasm_info
*) info
->application_data
;
896 if (sorted_symcount
< 1)
898 (*info
->fprintf_func
) (info
->stream
, "0x");
899 objdump_print_value (vma
, info
, skip_zeroes
);
901 if (display_file_offsets
)
902 info
->fprintf_func (info
->stream
, _(" (File Offset: 0x%lx)"),
903 (long int)(aux
->sec
->filepos
+ (vma
- aux
->sec
->vma
)));
907 if (aux
->reloc
!= NULL
908 && aux
->reloc
->sym_ptr_ptr
!= NULL
909 && * aux
->reloc
->sym_ptr_ptr
!= NULL
)
911 sym
= * aux
->reloc
->sym_ptr_ptr
;
913 /* Adjust the vma to the reloc. */
914 vma
+= bfd_asymbol_value (sym
);
916 if (bfd_is_und_section (bfd_get_section (sym
)))
921 sym
= find_symbol_for_address (vma
, info
, NULL
);
923 objdump_print_addr_with_sym (aux
->abfd
, aux
->sec
, sym
, vma
, info
,
927 /* Print VMA to INFO. This function is passed to the disassembler
931 objdump_print_address (bfd_vma vma
, struct disassemble_info
*info
)
933 objdump_print_addr (vma
, info
, ! prefix_addresses
);
936 /* Determine if the given address has a symbol associated with it. */
939 objdump_symbol_at_address (bfd_vma vma
, struct disassemble_info
* info
)
943 sym
= find_symbol_for_address (vma
, info
, NULL
);
945 return (sym
!= NULL
&& (bfd_asymbol_value (sym
) == vma
));
948 /* Hold the last function name and the last line number we displayed
951 static char *prev_functionname
;
952 static unsigned int prev_line
;
954 /* We keep a list of all files that we have seen when doing a
955 disassembly with source, so that we know how much of the file to
956 display. This can be important for inlined functions. */
958 struct print_file_list
960 struct print_file_list
*next
;
961 const char *filename
;
965 const char **linemap
;
971 static struct print_file_list
*print_files
;
973 /* The number of preceding context lines to show when we start
974 displaying a file for the first time. */
976 #define SHOW_PRECEDING_CONTEXT_LINES (5)
978 /* Read a complete file into memory. */
981 slurp_file (const char *fn
, size_t *size
)
984 int ps
= getpagesize ();
989 int fd
= open (fn
, O_RDONLY
| O_BINARY
);
993 if (fstat (fd
, &st
) < 0)
997 msize
= (*size
+ ps
- 1) & ~(ps
- 1);
998 map
= mmap (NULL
, msize
, PROT_READ
, MAP_SHARED
, fd
, 0);
999 if (map
!= (char *)-1L)
1005 map
= malloc (*size
);
1006 if (!map
|| (size_t) read (fd
, (char *)map
, *size
) != *size
)
1015 #define line_map_decrease 5
1017 /* Precompute array of lines for a mapped file. */
1019 static const char **
1020 index_file (const char *map
, size_t size
, unsigned int *maxline
)
1022 const char *p
, *lstart
, *end
;
1023 int chars_per_line
= 45; /* First iteration will use 40. */
1024 unsigned int lineno
;
1025 const char **linemap
= NULL
;
1026 unsigned long line_map_size
= 0;
1032 for (p
= map
; p
< end
; p
++)
1036 if (p
+ 1 < end
&& p
[1] == '\r')
1039 else if (*p
== '\r')
1041 if (p
+ 1 < end
&& p
[1] == '\n')
1047 /* End of line found. */
1049 if (linemap
== NULL
|| line_map_size
< lineno
+ 1)
1051 unsigned long newsize
;
1053 chars_per_line
-= line_map_decrease
;
1054 if (chars_per_line
<= 1)
1056 line_map_size
= size
/ chars_per_line
+ 1;
1057 if (line_map_size
< lineno
+ 1)
1058 line_map_size
= lineno
+ 1;
1059 newsize
= line_map_size
* sizeof (char *);
1060 linemap
= xrealloc (linemap
, newsize
);
1063 linemap
[lineno
++] = lstart
;
1071 /* Tries to open MODNAME, and if successful adds a node to print_files
1072 linked list and returns that node. Returns NULL on failure. */
1074 static struct print_file_list
*
1075 try_print_file_open (const char *origname
, const char *modname
)
1077 struct print_file_list
*p
;
1079 p
= xmalloc (sizeof (struct print_file_list
));
1081 p
->map
= slurp_file (modname
, &p
->mapsize
);
1088 p
->linemap
= index_file (p
->map
, p
->mapsize
, &p
->maxline
);
1090 p
->filename
= origname
;
1091 p
->modname
= modname
;
1092 p
->next
= print_files
;
1098 /* If the the source file, as described in the symtab, is not found
1099 try to locate it in one of the paths specified with -I
1100 If found, add location to print_files linked list. */
1102 static struct print_file_list
*
1103 update_source_path (const char *filename
)
1105 struct print_file_list
*p
;
1109 if (filename
== NULL
)
1112 p
= try_print_file_open (filename
, filename
);
1116 if (include_path_count
== 0)
1119 /* Get the name of the file. */
1120 fname
= strrchr (filename
, '/');
1121 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1123 /* We could have a mixed forward/back slash case. */
1124 char *backslash
= strrchr (filename
, '\\');
1125 if (fname
== NULL
|| (backslash
!= NULL
&& backslash
> fname
))
1127 if (fname
== NULL
&& filename
[0] != '\0' && filename
[1] == ':')
1128 fname
= filename
+ 1;
1136 /* If file exists under a new path, we need to add it to the list
1137 so that show_line knows about it. */
1138 for (i
= 0; i
< include_path_count
; i
++)
1140 char *modname
= concat (include_paths
[i
], "/", fname
, (const char *) 0);
1142 p
= try_print_file_open (filename
, modname
);
1152 /* Print a source file line. */
1155 print_line (struct print_file_list
*p
, unsigned int line
)
1161 if (line
>= p
->maxline
)
1163 l
= p
->linemap
[line
];
1164 /* Test fwrite return value to quiet glibc warning. */
1165 len
= strcspn (l
, "\n\r");
1166 if (len
== 0 || fwrite (l
, len
, 1, stdout
) == 1)
1170 /* Print a range of source code lines. */
1173 dump_lines (struct print_file_list
*p
, unsigned int start
, unsigned int end
)
1177 while (start
<= end
)
1179 print_line (p
, start
);
1184 /* Show the line number, or the source line, in a disassembly
1188 show_line (bfd
*abfd
, asection
*section
, bfd_vma addr_offset
)
1190 const char *filename
;
1191 const char *functionname
;
1194 if (! with_line_numbers
&& ! with_source_code
)
1197 if (! bfd_find_nearest_line (abfd
, section
, syms
, addr_offset
, &filename
,
1198 &functionname
, &line
))
1201 if (filename
!= NULL
&& *filename
== '\0')
1203 if (functionname
!= NULL
&& *functionname
== '\0')
1204 functionname
= NULL
;
1206 if (with_line_numbers
)
1208 if (functionname
!= NULL
1209 && (prev_functionname
== NULL
1210 || strcmp (functionname
, prev_functionname
) != 0))
1211 printf ("%s():\n", functionname
);
1212 if (line
> 0 && line
!= prev_line
)
1213 printf ("%s:%u\n", filename
== NULL
? "???" : filename
, line
);
1216 if (with_source_code
1220 struct print_file_list
**pp
, *p
;
1223 for (pp
= &print_files
; *pp
!= NULL
; pp
= &(*pp
)->next
)
1224 if (strcmp ((*pp
)->filename
, filename
) == 0)
1229 p
= update_source_path (filename
);
1231 if (p
!= NULL
&& line
!= p
->last_line
)
1233 if (file_start_context
&& p
->first
)
1237 l
= line
- SHOW_PRECEDING_CONTEXT_LINES
;
1240 if (p
->last_line
>= l
&& p
->last_line
<= line
)
1241 l
= p
->last_line
+ 1;
1243 dump_lines (p
, l
, line
);
1244 p
->last_line
= line
;
1249 if (functionname
!= NULL
1250 && (prev_functionname
== NULL
1251 || strcmp (functionname
, prev_functionname
) != 0))
1253 if (prev_functionname
!= NULL
)
1254 free (prev_functionname
);
1255 prev_functionname
= xmalloc (strlen (functionname
) + 1);
1256 strcpy (prev_functionname
, functionname
);
1259 if (line
> 0 && line
!= prev_line
)
1263 /* Pseudo FILE object for strings. */
1271 /* sprintf to a "stream". */
1273 static int ATTRIBUTE_PRINTF_2
1274 objdump_sprintf (SFILE
*f
, const char *format
, ...)
1281 size_t space
= f
->alloc
- f
->pos
;
1283 va_start (args
, format
);
1284 n
= vsnprintf (f
->buffer
+ f
->pos
, space
, format
, args
);
1290 f
->alloc
= (f
->alloc
+ n
) * 2;
1291 f
->buffer
= xrealloc (f
->buffer
, f
->alloc
);
1298 /* Returns TRUE if the specified section should be dumped. */
1301 process_section_p (asection
* section
)
1308 for (i
= 0; i
< only_used
; i
++)
1309 if (strcmp (only
[i
], section
->name
) == 0)
1316 /* The number of zeroes we want to see before we start skipping them.
1317 The number is arbitrarily chosen. */
1319 #define DEFAULT_SKIP_ZEROES 8
1321 /* The number of zeroes to skip at the end of a section. If the
1322 number of zeroes at the end is between SKIP_ZEROES_AT_END and
1323 SKIP_ZEROES, they will be disassembled. If there are fewer than
1324 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
1325 attempt to avoid disassembling zeroes inserted by section
1328 #define DEFAULT_SKIP_ZEROES_AT_END 3
1330 /* Disassemble some data in memory between given values. */
1333 disassemble_bytes (struct disassemble_info
* info
,
1334 disassembler_ftype disassemble_fn
,
1337 bfd_vma start_offset
,
1338 bfd_vma stop_offset
,
1341 arelent
** relppend
)
1343 struct objdump_disasm_info
*aux
;
1345 int octets_per_line
;
1346 bfd_boolean done_dot
;
1347 int skip_addr_chars
;
1348 bfd_vma addr_offset
;
1349 unsigned int opb
= info
->octets_per_byte
;
1350 unsigned int skip_zeroes
= info
->skip_zeroes
;
1351 unsigned int skip_zeroes_at_end
= info
->skip_zeroes_at_end
;
1355 aux
= (struct objdump_disasm_info
*) info
->application_data
;
1359 sfile
.buffer
= xmalloc (sfile
.alloc
);
1363 octets_per_line
= 4;
1365 octets_per_line
= 16;
1367 /* Figure out how many characters to skip at the start of an
1368 address, to make the disassembly look nicer. We discard leading
1369 zeroes in chunks of 4, ensuring that there is always a leading
1371 skip_addr_chars
= 0;
1372 if (! prefix_addresses
)
1380 + bfd_section_size (section
->owner
, section
) / opb
));
1382 while (s
[0] == '0' && s
[1] == '0' && s
[2] == '0' && s
[3] == '0'
1385 skip_addr_chars
+= 4;
1390 info
->insn_info_valid
= 0;
1393 addr_offset
= start_offset
;
1394 while (addr_offset
< stop_offset
)
1397 bfd_boolean need_nl
= FALSE
;
1398 int previous_octets
;
1400 /* Remember the length of the previous instruction. */
1401 previous_octets
= octets
;
1404 /* If we see more than SKIP_ZEROES octets of zeroes, we just
1406 for (z
= addr_offset
* opb
; z
< stop_offset
* opb
; z
++)
1409 if (! disassemble_zeroes
1410 && (info
->insn_info_valid
== 0
1411 || info
->branch_delay_insns
== 0)
1412 && (z
- addr_offset
* opb
>= skip_zeroes
1413 || (z
== stop_offset
* opb
&&
1414 z
- addr_offset
* opb
< skip_zeroes_at_end
)))
1416 /* If there are more nonzero octets to follow, we only skip
1417 zeroes in multiples of 4, to try to avoid running over
1418 the start of an instruction which happens to start with
1420 if (z
!= stop_offset
* opb
)
1421 z
= addr_offset
* opb
+ ((z
- addr_offset
* opb
) &~ 3);
1423 octets
= z
- addr_offset
* opb
;
1425 /* If we are going to display more data, and we are displaying
1426 file offsets, then tell the user how many zeroes we skip
1427 and the file offset from where we resume dumping. */
1428 if (display_file_offsets
&& ((addr_offset
+ (octets
/ opb
)) < stop_offset
))
1429 printf ("\t... (skipping %d zeroes, resuming at file offset: 0x%lx)\n",
1431 (unsigned long) (section
->filepos
1432 + (addr_offset
+ (octets
/ opb
))));
1444 if (with_line_numbers
|| with_source_code
)
1445 show_line (aux
->abfd
, section
, addr_offset
);
1447 if (! prefix_addresses
)
1451 bfd_sprintf_vma (aux
->abfd
, buf
, section
->vma
+ addr_offset
);
1452 for (s
= buf
+ skip_addr_chars
; *s
== '0'; s
++)
1456 printf ("%s:\t", buf
+ skip_addr_chars
);
1460 aux
->require_sec
= TRUE
;
1461 objdump_print_address (section
->vma
+ addr_offset
, info
);
1462 aux
->require_sec
= FALSE
;
1469 info
->fprintf_func
= (fprintf_ftype
) objdump_sprintf
;
1470 info
->stream
= &sfile
;
1471 info
->bytes_per_line
= 0;
1472 info
->bytes_per_chunk
= 0;
1475 if (info
->disassembler_needs_relocs
1476 && (bfd_get_file_flags (aux
->abfd
) & EXEC_P
) == 0
1477 && (bfd_get_file_flags (aux
->abfd
) & DYNAMIC
) == 0
1478 && *relppp
< relppend
)
1480 bfd_signed_vma distance_to_rel
;
1482 distance_to_rel
= (**relppp
)->address
1483 - (rel_offset
+ addr_offset
);
1485 /* Check to see if the current reloc is associated with
1486 the instruction that we are about to disassemble. */
1487 if (distance_to_rel
== 0
1488 /* FIXME: This is wrong. We are trying to catch
1489 relocs that are addressed part way through the
1490 current instruction, as might happen with a packed
1491 VLIW instruction. Unfortunately we do not know the
1492 length of the current instruction since we have not
1493 disassembled it yet. Instead we take a guess based
1494 upon the length of the previous instruction. The
1495 proper solution is to have a new target-specific
1496 disassembler function which just returns the length
1497 of an instruction at a given address without trying
1498 to display its disassembly. */
1499 || (distance_to_rel
> 0
1500 && distance_to_rel
< (bfd_signed_vma
) (previous_octets
/ opb
)))
1502 info
->flags
= INSN_HAS_RELOC
;
1503 aux
->reloc
= **relppp
;
1509 octets
= (*disassemble_fn
) (section
->vma
+ addr_offset
, info
);
1510 info
->fprintf_func
= (fprintf_ftype
) fprintf
;
1511 info
->stream
= stdout
;
1512 if (info
->bytes_per_line
!= 0)
1513 octets_per_line
= info
->bytes_per_line
;
1517 printf ("%s\n", sfile
.buffer
);
1525 octets
= octets_per_line
;
1526 if (addr_offset
+ octets
/ opb
> stop_offset
)
1527 octets
= (stop_offset
- addr_offset
) * opb
;
1529 for (j
= addr_offset
* opb
; j
< addr_offset
* opb
+ octets
; ++j
)
1531 if (ISPRINT (data
[j
]))
1532 buf
[j
- addr_offset
* opb
] = data
[j
];
1534 buf
[j
- addr_offset
* opb
] = '.';
1536 buf
[j
- addr_offset
* opb
] = '\0';
1539 if (prefix_addresses
1541 : show_raw_insn
>= 0)
1545 /* If ! prefix_addresses and ! wide_output, we print
1546 octets_per_line octets per line. */
1548 if (pb
> octets_per_line
&& ! prefix_addresses
&& ! wide_output
)
1549 pb
= octets_per_line
;
1551 if (info
->bytes_per_chunk
)
1552 bpc
= info
->bytes_per_chunk
;
1556 for (j
= addr_offset
* opb
; j
< addr_offset
* opb
+ pb
; j
+= bpc
)
1560 if (bpc
> 1 && info
->display_endian
== BFD_ENDIAN_LITTLE
)
1562 for (k
= bpc
- 1; k
>= 0; k
--)
1563 printf ("%02x", (unsigned) data
[j
+ k
]);
1568 for (k
= 0; k
< bpc
; k
++)
1569 printf ("%02x", (unsigned) data
[j
+ k
]);
1574 for (; pb
< octets_per_line
; pb
+= bpc
)
1578 for (k
= 0; k
< bpc
; k
++)
1583 /* Separate raw data from instruction by extra space. */
1593 printf ("%s", sfile
.buffer
);
1595 if (prefix_addresses
1597 : show_raw_insn
>= 0)
1605 j
= addr_offset
* opb
+ pb
;
1607 bfd_sprintf_vma (aux
->abfd
, buf
, section
->vma
+ j
/ opb
);
1608 for (s
= buf
+ skip_addr_chars
; *s
== '0'; s
++)
1612 printf ("%s:\t", buf
+ skip_addr_chars
);
1614 pb
+= octets_per_line
;
1617 for (; j
< addr_offset
* opb
+ pb
; j
+= bpc
)
1621 if (bpc
> 1 && info
->display_endian
== BFD_ENDIAN_LITTLE
)
1623 for (k
= bpc
- 1; k
>= 0; k
--)
1624 printf ("%02x", (unsigned) data
[j
+ k
]);
1629 for (k
= 0; k
< bpc
; k
++)
1630 printf ("%02x", (unsigned) data
[j
+ k
]);
1643 while ((*relppp
) < relppend
1644 && (**relppp
)->address
< rel_offset
+ addr_offset
+ octets
/ opb
)
1646 if (dump_reloc_info
|| dump_dynamic_reloc_info
)
1657 objdump_print_value (section
->vma
- rel_offset
+ q
->address
,
1660 if (q
->howto
== NULL
)
1661 printf (": *unknown*\t");
1662 else if (q
->howto
->name
)
1663 printf (": %s\t", q
->howto
->name
);
1665 printf (": %d\t", q
->howto
->type
);
1667 if (q
->sym_ptr_ptr
== NULL
|| *q
->sym_ptr_ptr
== NULL
)
1668 printf ("*unknown*");
1671 const char *sym_name
;
1673 sym_name
= bfd_asymbol_name (*q
->sym_ptr_ptr
);
1674 if (sym_name
!= NULL
&& *sym_name
!= '\0')
1675 objdump_print_symname (aux
->abfd
, info
, *q
->sym_ptr_ptr
);
1680 sym_sec
= bfd_get_section (*q
->sym_ptr_ptr
);
1681 sym_name
= bfd_get_section_name (aux
->abfd
, sym_sec
);
1682 if (sym_name
== NULL
|| *sym_name
== '\0')
1683 sym_name
= "*unknown*";
1684 printf ("%s", sym_name
);
1691 objdump_print_value (q
->addend
, info
, TRUE
);
1703 addr_offset
+= octets
/ opb
;
1706 free (sfile
.buffer
);
1710 disassemble_section (bfd
*abfd
, asection
*section
, void *info
)
1712 struct disassemble_info
* pinfo
= (struct disassemble_info
*) info
;
1713 struct objdump_disasm_info
* paux
;
1714 unsigned int opb
= pinfo
->octets_per_byte
;
1715 bfd_byte
* data
= NULL
;
1716 bfd_size_type datasize
= 0;
1717 arelent
** rel_pp
= NULL
;
1718 arelent
** rel_ppstart
= NULL
;
1719 arelent
** rel_ppend
;
1720 unsigned long stop_offset
;
1721 asymbol
* sym
= NULL
;
1725 unsigned long addr_offset
;
1727 /* Sections that do not contain machine
1728 code are not normally disassembled. */
1729 if (! disassemble_all
1731 && ((section
->flags
& (SEC_CODE
| SEC_HAS_CONTENTS
))
1732 != (SEC_CODE
| SEC_HAS_CONTENTS
)))
1735 if (! process_section_p (section
))
1738 datasize
= bfd_get_section_size (section
);
1742 /* Decide which set of relocs to use. Load them if necessary. */
1743 paux
= (struct objdump_disasm_info
*) pinfo
->application_data
;
1744 if (paux
->dynrelbuf
)
1746 rel_pp
= paux
->dynrelbuf
;
1747 rel_count
= paux
->dynrelcount
;
1748 /* Dynamic reloc addresses are absolute, non-dynamic are section
1749 relative. REL_OFFSET specifies the reloc address corresponding
1750 to the start of this section. */
1751 rel_offset
= section
->vma
;
1759 if ((section
->flags
& SEC_RELOC
) != 0
1760 && (dump_reloc_info
|| pinfo
->disassembler_needs_relocs
))
1764 relsize
= bfd_get_reloc_upper_bound (abfd
, section
);
1766 bfd_fatal (bfd_get_filename (abfd
));
1770 rel_ppstart
= rel_pp
= xmalloc (relsize
);
1771 rel_count
= bfd_canonicalize_reloc (abfd
, section
, rel_pp
, syms
);
1773 bfd_fatal (bfd_get_filename (abfd
));
1775 /* Sort the relocs by address. */
1776 qsort (rel_pp
, rel_count
, sizeof (arelent
*), compare_relocs
);
1781 rel_ppend
= rel_pp
+ rel_count
;
1783 data
= xmalloc (datasize
);
1785 bfd_get_section_contents (abfd
, section
, data
, 0, datasize
);
1787 paux
->sec
= section
;
1788 pinfo
->buffer
= data
;
1789 pinfo
->buffer_vma
= section
->vma
;
1790 pinfo
->buffer_length
= datasize
;
1791 pinfo
->section
= section
;
1793 if (start_address
== (bfd_vma
) -1
1794 || start_address
< pinfo
->buffer_vma
)
1797 addr_offset
= start_address
- pinfo
->buffer_vma
;
1799 if (stop_address
== (bfd_vma
) -1)
1800 stop_offset
= datasize
/ opb
;
1803 if (stop_address
< pinfo
->buffer_vma
)
1806 stop_offset
= stop_address
- pinfo
->buffer_vma
;
1807 if (stop_offset
> pinfo
->buffer_length
/ opb
)
1808 stop_offset
= pinfo
->buffer_length
/ opb
;
1811 /* Skip over the relocs belonging to addresses below the
1813 while (rel_pp
< rel_ppend
1814 && (*rel_pp
)->address
< rel_offset
+ addr_offset
)
1817 if (addr_offset
< stop_offset
)
1818 printf (_("\nDisassembly of section %s:\n"), section
->name
);
1820 /* Find the nearest symbol forwards from our current position. */
1821 paux
->require_sec
= TRUE
;
1822 sym
= find_symbol_for_address (section
->vma
+ addr_offset
, info
, &place
);
1823 paux
->require_sec
= FALSE
;
1825 /* Disassemble a block of instructions up to the address associated with
1826 the symbol we have just found. Then print the symbol and find the
1827 next symbol on. Repeat until we have disassembled the entire section
1828 or we have reached the end of the address range we are interested in. */
1829 while (addr_offset
< stop_offset
)
1833 unsigned long nextstop_offset
;
1836 addr
= section
->vma
+ addr_offset
;
1838 if (sym
!= NULL
&& bfd_asymbol_value (sym
) <= addr
)
1843 (x
< sorted_symcount
1844 && (bfd_asymbol_value (sorted_syms
[x
]) <= addr
));
1848 pinfo
->symbols
= sorted_syms
+ place
;
1849 pinfo
->num_symbols
= x
- place
;
1850 pinfo
->symtab_pos
= place
;
1854 pinfo
->symbols
= NULL
;
1855 pinfo
->num_symbols
= 0;
1856 pinfo
->symtab_pos
= -1;
1859 if (! prefix_addresses
)
1861 pinfo
->fprintf_func (pinfo
->stream
, "\n");
1862 objdump_print_addr_with_sym (abfd
, section
, sym
, addr
,
1864 pinfo
->fprintf_func (pinfo
->stream
, ":\n");
1867 if (sym
!= NULL
&& bfd_asymbol_value (sym
) > addr
)
1869 else if (sym
== NULL
)
1873 #define is_valid_next_sym(SYM) \
1874 ((SYM)->section == section \
1875 && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
1876 && pinfo->symbol_is_valid (SYM, pinfo))
1878 /* Search forward for the next appropriate symbol in
1879 SECTION. Note that all the symbols are sorted
1880 together into one big array, and that some sections
1881 may have overlapping addresses. */
1882 while (place
< sorted_symcount
1883 && ! is_valid_next_sym (sorted_syms
[place
]))
1886 if (place
>= sorted_symcount
)
1889 nextsym
= sorted_syms
[place
];
1892 if (sym
!= NULL
&& bfd_asymbol_value (sym
) > addr
)
1893 nextstop_offset
= bfd_asymbol_value (sym
) - section
->vma
;
1894 else if (nextsym
== NULL
)
1895 nextstop_offset
= stop_offset
;
1897 nextstop_offset
= bfd_asymbol_value (nextsym
) - section
->vma
;
1899 if (nextstop_offset
> stop_offset
)
1900 nextstop_offset
= stop_offset
;
1902 /* If a symbol is explicitly marked as being an object
1903 rather than a function, just dump the bytes without
1904 disassembling them. */
1907 || bfd_asymbol_value (sym
) > addr
1908 || ((sym
->flags
& BSF_OBJECT
) == 0
1909 && (strstr (bfd_asymbol_name (sym
), "gnu_compiled")
1911 && (strstr (bfd_asymbol_name (sym
), "gcc2_compiled")
1913 || (sym
->flags
& BSF_FUNCTION
) != 0)
1918 disassemble_bytes (pinfo
, paux
->disassemble_fn
, insns
, data
,
1919 addr_offset
, nextstop_offset
,
1920 rel_offset
, &rel_pp
, rel_ppend
);
1922 addr_offset
= nextstop_offset
;
1928 if (rel_ppstart
!= NULL
)
1932 /* Disassemble the contents of an object file. */
1935 disassemble_data (bfd
*abfd
)
1937 struct disassemble_info disasm_info
;
1938 struct objdump_disasm_info aux
;
1942 prev_functionname
= NULL
;
1945 /* We make a copy of syms to sort. We don't want to sort syms
1946 because that will screw up the relocs. */
1947 sorted_symcount
= symcount
? symcount
: dynsymcount
;
1948 sorted_syms
= xmalloc ((sorted_symcount
+ synthcount
) * sizeof (asymbol
*));
1949 memcpy (sorted_syms
, symcount
? syms
: dynsyms
,
1950 sorted_symcount
* sizeof (asymbol
*));
1952 sorted_symcount
= remove_useless_symbols (sorted_syms
, sorted_symcount
);
1954 for (i
= 0; i
< synthcount
; ++i
)
1956 sorted_syms
[sorted_symcount
] = synthsyms
+ i
;
1960 /* Sort the symbols into section and symbol order. */
1961 qsort (sorted_syms
, sorted_symcount
, sizeof (asymbol
*), compare_symbols
);
1963 init_disassemble_info (&disasm_info
, stdout
, (fprintf_ftype
) fprintf
);
1965 disasm_info
.application_data
= (void *) &aux
;
1967 aux
.require_sec
= FALSE
;
1968 aux
.dynrelbuf
= NULL
;
1969 aux
.dynrelcount
= 0;
1972 disasm_info
.print_address_func
= objdump_print_address
;
1973 disasm_info
.symbol_at_address_func
= objdump_symbol_at_address
;
1975 if (machine
!= NULL
)
1977 const bfd_arch_info_type
*info
= bfd_scan_arch (machine
);
1980 fatal (_("Can't use supplied machine %s"), machine
);
1982 abfd
->arch_info
= info
;
1985 if (endian
!= BFD_ENDIAN_UNKNOWN
)
1987 struct bfd_target
*xvec
;
1989 xvec
= xmalloc (sizeof (struct bfd_target
));
1990 memcpy (xvec
, abfd
->xvec
, sizeof (struct bfd_target
));
1991 xvec
->byteorder
= endian
;
1995 /* Use libopcodes to locate a suitable disassembler. */
1996 aux
.disassemble_fn
= disassembler (abfd
);
1997 if (!aux
.disassemble_fn
)
1999 non_fatal (_("Can't disassemble for architecture %s\n"),
2000 bfd_printable_arch_mach (bfd_get_arch (abfd
), 0));
2005 disasm_info
.flavour
= bfd_get_flavour (abfd
);
2006 disasm_info
.arch
= bfd_get_arch (abfd
);
2007 disasm_info
.mach
= bfd_get_mach (abfd
);
2008 disasm_info
.disassembler_options
= disassembler_options
;
2009 disasm_info
.octets_per_byte
= bfd_octets_per_byte (abfd
);
2010 disasm_info
.skip_zeroes
= DEFAULT_SKIP_ZEROES
;
2011 disasm_info
.skip_zeroes_at_end
= DEFAULT_SKIP_ZEROES_AT_END
;
2012 disasm_info
.disassembler_needs_relocs
= FALSE
;
2014 if (bfd_big_endian (abfd
))
2015 disasm_info
.display_endian
= disasm_info
.endian
= BFD_ENDIAN_BIG
;
2016 else if (bfd_little_endian (abfd
))
2017 disasm_info
.display_endian
= disasm_info
.endian
= BFD_ENDIAN_LITTLE
;
2019 /* ??? Aborting here seems too drastic. We could default to big or little
2021 disasm_info
.endian
= BFD_ENDIAN_UNKNOWN
;
2023 /* Allow the target to customize the info structure. */
2024 disassemble_init_for_target (& disasm_info
);
2026 /* Pre-load the dynamic relocs if we are going
2027 to be dumping them along with the disassembly. */
2028 if (dump_dynamic_reloc_info
)
2030 long relsize
= bfd_get_dynamic_reloc_upper_bound (abfd
);
2033 bfd_fatal (bfd_get_filename (abfd
));
2037 aux
.dynrelbuf
= xmalloc (relsize
);
2038 aux
.dynrelcount
= bfd_canonicalize_dynamic_reloc (abfd
,
2041 if (aux
.dynrelcount
< 0)
2042 bfd_fatal (bfd_get_filename (abfd
));
2044 /* Sort the relocs by address. */
2045 qsort (aux
.dynrelbuf
, aux
.dynrelcount
, sizeof (arelent
*),
2049 disasm_info
.symtab
= sorted_syms
;
2050 disasm_info
.symtab_size
= sorted_symcount
;
2052 bfd_map_over_sections (abfd
, disassemble_section
, & disasm_info
);
2054 if (aux
.dynrelbuf
!= NULL
)
2055 free (aux
.dynrelbuf
);
2060 load_debug_section (enum dwarf_section_display_enum debug
, void *file
)
2062 struct dwarf_section
*section
= &debug_displays
[debug
].section
;
2066 int section_is_compressed
;
2068 /* If it is already loaded, do nothing. */
2069 if (section
->start
!= NULL
)
2072 /* Locate the debug section. */
2073 sec
= bfd_get_section_by_name (abfd
, section
->uncompressed_name
);
2075 section
->name
= section
->uncompressed_name
;
2078 sec
= bfd_get_section_by_name (abfd
, section
->compressed_name
);
2080 section
->name
= section
->compressed_name
;
2084 section_is_compressed
= section
->name
== section
->compressed_name
;
2086 /* Compute a bias to be added to offsets found within the DWARF debug
2087 information. These offsets are meant to be relative to the start of
2088 the dwarf section, and hence the bias should be 0. For MACH-O however
2089 a dwarf section is really just a region of a much larger section and so
2090 the bias is the address of the start of that area within the larger
2091 section. This test is important for PE and COFF based targets which
2092 use DWARF debug information, since unlike ELF, they do not allow the
2093 dwarf sections to be placed at address 0. */
2094 if (bfd_get_flavour (abfd
) == bfd_target_mach_o_flavour
)
2095 section
->address
= bfd_get_section_vma (abfd
, sec
);
2097 section
->address
= 0;
2099 section
->size
= bfd_get_section_size (sec
);
2100 section
->start
= xmalloc (section
->size
);
2102 if (is_relocatable
&& debug_displays
[debug
].relocate
)
2103 ret
= bfd_simple_get_relocated_section_contents (abfd
,
2108 ret
= bfd_get_section_contents (abfd
, sec
, section
->start
, 0,
2113 free_debug_section (debug
);
2114 printf (_("\nCan't get contents for section '%s'.\n"),
2119 if (section_is_compressed
)
2121 bfd_size_type size
= section
->size
;
2122 if (! bfd_uncompress_section_contents (§ion
->start
, &size
))
2124 free_debug_section (debug
);
2125 printf (_("\nCan't uncompress section '%s'.\n"), section
->name
);
2128 section
->size
= size
;
2135 free_debug_section (enum dwarf_section_display_enum debug
)
2137 struct dwarf_section
*section
= &debug_displays
[debug
].section
;
2139 if (section
->start
== NULL
)
2142 free ((char *) section
->start
);
2143 section
->start
= NULL
;
2144 section
->address
= 0;
2149 dump_dwarf_section (bfd
*abfd
, asection
*section
,
2150 void *arg ATTRIBUTE_UNUSED
)
2152 const char *name
= bfd_get_section_name (abfd
, section
);
2154 enum dwarf_section_display_enum i
;
2156 if (CONST_STRNEQ (name
, ".gnu.linkonce.wi."))
2157 match
= ".debug_info";
2161 for (i
= 0; i
< max
; i
++)
2162 if (strcmp (debug_displays
[i
].section
.uncompressed_name
, match
) == 0
2163 || strcmp (debug_displays
[i
].section
.compressed_name
, match
) == 0)
2165 if (!debug_displays
[i
].eh_frame
)
2167 struct dwarf_section
*sec
= &debug_displays
[i
].section
;
2169 if (load_debug_section (i
, abfd
))
2171 debug_displays
[i
].display (sec
, abfd
);
2173 if (i
!= info
&& i
!= abbrev
)
2174 free_debug_section (i
);
2181 static const char *mach_o_uncompressed_dwarf_sections
[] = {
2182 "LC_SEGMENT.__DWARFA.__debug_abbrev", /* .debug_abbrev */
2183 "LC_SEGMENT.__DWARFA.__debug_aranges", /* .debug_aranges */
2184 "LC_SEGMENT.__DWARFA.__debug_frame", /* .debug_frame */
2185 "LC_SEGMENT.__DWARFA.__debug_info", /* .debug_info */
2186 "LC_SEGMENT.__DWARFA.__debug_line", /* .debug_line */
2187 "LC_SEGMENT.__DWARFA.__debug_pubnames", /* .debug_pubnames */
2188 ".eh_frame", /* .eh_frame */
2189 "LC_SEGMENT.__DWARFA.__debug_macinfo", /* .debug_macinfo */
2190 "LC_SEGMENT.__DWARFA.__debug_str", /* .debug_str */
2191 "LC_SEGMENT.__DWARFA.__debug_loc", /* .debug_loc */
2192 "LC_SEGMENT.__DWARFA.__debug_pubtypes", /* .debug_pubtypes */
2193 "LC_SEGMENT.__DWARFA.__debug_ranges", /* .debug_ranges */
2194 "LC_SEGMENT.__DWARFA.__debug_static_func", /* .debug_static_func */
2195 "LC_SEGMENT.__DWARFA.__debug_static_vars", /* .debug_static_vars */
2196 "LC_SEGMENT.__DWARFA.__debug_types", /* .debug_types */
2197 "LC_SEGMENT.__DWARFA.__debug_weaknames" /* .debug_weaknames */
2200 static const char *mach_o_compressed_dwarf_sections
[] = {
2201 "LC_SEGMENT.__DWARFA.__zdebug_abbrev", /* .zdebug_abbrev */
2202 "LC_SEGMENT.__DWARFA.__zdebug_aranges", /* .zdebug_aranges */
2203 "LC_SEGMENT.__DWARFA.__zdebug_frame", /* .zdebug_frame */
2204 "LC_SEGMENT.__DWARFA.__zdebug_info", /* .zdebug_info */
2205 "LC_SEGMENT.__DWARFA.__zdebug_line", /* .zdebug_line */
2206 "LC_SEGMENT.__DWARFA.__zdebug_pubnames", /* .zdebug_pubnames */
2207 ".eh_frame", /* .eh_frame */
2208 "LC_SEGMENT.__DWARFA.__zdebug_macinfo", /* .zdebug_macinfo */
2209 "LC_SEGMENT.__DWARFA.__zdebug_str", /* .zdebug_str */
2210 "LC_SEGMENT.__DWARFA.__zdebug_loc", /* .zdebug_loc */
2211 "LC_SEGMENT.__DWARFA.__zdebug_pubtypes", /* .zdebug_pubtypes */
2212 "LC_SEGMENT.__DWARFA.__zdebug_ranges", /* .zdebug_ranges */
2213 "LC_SEGMENT.__DWARFA.__zdebug_static_func", /* .zdebug_static_func */
2214 "LC_SEGMENT.__DWARFA.__zdebug_static_vars", /* .zdebug_static_vars */
2215 "LC_SEGMENT.__DWARFA.__zdebug_types", /* .zdebug_types */
2216 "LC_SEGMENT.__DWARFA.__zdebug_weaknames" /* .zdebug_weaknames */
2219 static const char *generic_uncompressed_dwarf_sections
[max
];
2220 static const char *generic_compressed_dwarf_sections
[max
];
2223 check_mach_o_dwarf (bfd
*abfd
)
2225 static enum bfd_flavour old_flavour
= bfd_target_unknown_flavour
;
2226 enum bfd_flavour current_flavour
= bfd_get_flavour (abfd
);
2227 enum dwarf_section_display_enum i
;
2229 if (generic_uncompressed_dwarf_sections
[0] == NULL
)
2230 for (i
= 0; i
< max
; i
++)
2232 generic_uncompressed_dwarf_sections
[i
]
2233 = debug_displays
[i
].section
.uncompressed_name
;
2234 generic_compressed_dwarf_sections
[i
]
2235 = debug_displays
[i
].section
.compressed_name
;
2238 if (old_flavour
!= current_flavour
)
2240 if (current_flavour
== bfd_target_mach_o_flavour
)
2241 for (i
= 0; i
< max
; i
++)
2243 debug_displays
[i
].section
.uncompressed_name
2244 = mach_o_uncompressed_dwarf_sections
[i
];
2245 debug_displays
[i
].section
.compressed_name
2246 = mach_o_compressed_dwarf_sections
[i
];
2248 else if (old_flavour
== bfd_target_mach_o_flavour
)
2249 for (i
= 0; i
< max
; i
++)
2251 debug_displays
[i
].section
.uncompressed_name
2252 = generic_uncompressed_dwarf_sections
[i
];
2253 debug_displays
[i
].section
.compressed_name
2254 = generic_compressed_dwarf_sections
[i
];
2257 old_flavour
= current_flavour
;
2261 /* Dump the dwarf debugging information. */
2264 dump_dwarf (bfd
*abfd
)
2266 is_relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
2268 /* FIXME: bfd_get_arch_size may return -1. We assume that 64bit
2269 targets will return 64. */
2270 eh_addr_size
= bfd_get_arch_size (abfd
) == 64 ? 8 : 4;
2272 if (bfd_big_endian (abfd
))
2273 byte_get
= byte_get_big_endian
;
2274 else if (bfd_little_endian (abfd
))
2275 byte_get
= byte_get_little_endian
;
2279 check_mach_o_dwarf (abfd
);
2281 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
2283 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2284 init_dwarf_regnames (bed
->elf_machine_code
);
2287 bfd_map_over_sections (abfd
, dump_dwarf_section
, NULL
);
2289 free_debug_memory ();
2292 /* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
2293 it. Return NULL on failure. */
2296 read_section_stabs (bfd
*abfd
, const char *sect_name
, bfd_size_type
*size_ptr
)
2302 stabsect
= bfd_get_section_by_name (abfd
, sect_name
);
2303 if (stabsect
== NULL
)
2305 printf (_("No %s section present\n\n"), sect_name
);
2309 size
= bfd_section_size (abfd
, stabsect
);
2310 contents
= xmalloc (size
);
2312 if (! bfd_get_section_contents (abfd
, stabsect
, contents
, 0, size
))
2314 non_fatal (_("Reading %s section of %s failed: %s"),
2315 sect_name
, bfd_get_filename (abfd
),
2316 bfd_errmsg (bfd_get_error ()));
2327 /* Stabs entries use a 12 byte format:
2328 4 byte string table index
2330 1 byte stab other field
2331 2 byte stab desc field
2333 FIXME: This will have to change for a 64 bit object format. */
2335 #define STRDXOFF (0)
2337 #define OTHEROFF (5)
2340 #define STABSIZE (12)
2342 /* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
2343 using string table section STRSECT_NAME (in `strtab'). */
2346 print_section_stabs (bfd
*abfd
,
2347 const char *stabsect_name
,
2348 unsigned *string_offset_ptr
)
2351 unsigned file_string_table_offset
= 0;
2352 unsigned next_file_string_table_offset
= *string_offset_ptr
;
2353 bfd_byte
*stabp
, *stabs_end
;
2356 stabs_end
= stabp
+ stab_size
;
2358 printf (_("Contents of %s section:\n\n"), stabsect_name
);
2359 printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
2361 /* Loop through all symbols and print them.
2363 We start the index at -1 because there is a dummy symbol on
2364 the front of stabs-in-{coff,elf} sections that supplies sizes. */
2365 for (i
= -1; stabp
< stabs_end
; stabp
+= STABSIZE
, i
++)
2369 unsigned char type
, other
;
2370 unsigned short desc
;
2373 strx
= bfd_h_get_32 (abfd
, stabp
+ STRDXOFF
);
2374 type
= bfd_h_get_8 (abfd
, stabp
+ TYPEOFF
);
2375 other
= bfd_h_get_8 (abfd
, stabp
+ OTHEROFF
);
2376 desc
= bfd_h_get_16 (abfd
, stabp
+ DESCOFF
);
2377 value
= bfd_h_get_32 (abfd
, stabp
+ VALOFF
);
2379 printf ("\n%-6d ", i
);
2380 /* Either print the stab name, or, if unnamed, print its number
2381 again (makes consistent formatting for tools like awk). */
2382 name
= bfd_get_stab_name (type
);
2384 printf ("%-6s", name
);
2385 else if (type
== N_UNDF
)
2388 printf ("%-6d", type
);
2389 printf (" %-6d %-6d ", other
, desc
);
2390 bfd_printf_vma (abfd
, value
);
2391 printf (" %-6lu", strx
);
2393 /* Symbols with type == 0 (N_UNDF) specify the length of the
2394 string table associated with this file. We use that info
2395 to know how to relocate the *next* file's string table indices. */
2398 file_string_table_offset
= next_file_string_table_offset
;
2399 next_file_string_table_offset
+= value
;
2403 /* Using the (possibly updated) string table offset, print the
2404 string (if any) associated with this symbol. */
2405 if ((strx
+ file_string_table_offset
) < stabstr_size
)
2406 printf (" %s", &strtab
[strx
+ file_string_table_offset
]);
2412 *string_offset_ptr
= next_file_string_table_offset
;
2417 const char * section_name
;
2418 const char * string_section_name
;
2419 unsigned string_offset
;
2424 find_stabs_section (bfd
*abfd
, asection
*section
, void *names
)
2427 stab_section_names
* sought
= (stab_section_names
*) names
;
2429 /* Check for section names for which stabsect_name is a prefix, to
2430 handle .stab.N, etc. */
2431 len
= strlen (sought
->section_name
);
2433 /* If the prefix matches, and the files section name ends with a
2434 nul or a digit, then we match. I.e., we want either an exact
2435 match or a section followed by a number. */
2436 if (strncmp (sought
->section_name
, section
->name
, len
) == 0
2437 && (section
->name
[len
] == 0
2438 || (section
->name
[len
] == '.' && ISDIGIT (section
->name
[len
+ 1]))))
2441 strtab
= read_section_stabs (abfd
, sought
->string_section_name
,
2446 stabs
= (bfd_byte
*) read_section_stabs (abfd
, section
->name
,
2449 print_section_stabs (abfd
, section
->name
, &sought
->string_offset
);
2455 dump_stabs_section (bfd
*abfd
, char *stabsect_name
, char *strsect_name
)
2457 stab_section_names s
;
2459 s
.section_name
= stabsect_name
;
2460 s
.string_section_name
= strsect_name
;
2461 s
.string_offset
= 0;
2463 bfd_map_over_sections (abfd
, find_stabs_section
, & s
);
2469 /* Dump the any sections containing stabs debugging information. */
2472 dump_stabs (bfd
*abfd
)
2474 dump_stabs_section (abfd
, ".stab", ".stabstr");
2475 dump_stabs_section (abfd
, ".stab.excl", ".stab.exclstr");
2476 dump_stabs_section (abfd
, ".stab.index", ".stab.indexstr");
2479 dump_stabs_section (abfd
, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr");
2481 dump_stabs_section (abfd
, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
2485 dump_bfd_header (bfd
*abfd
)
2489 printf (_("architecture: %s, "),
2490 bfd_printable_arch_mach (bfd_get_arch (abfd
),
2491 bfd_get_mach (abfd
)));
2492 printf (_("flags 0x%08x:\n"), abfd
->flags
);
2494 #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";}
2495 PF (HAS_RELOC
, "HAS_RELOC");
2496 PF (EXEC_P
, "EXEC_P");
2497 PF (HAS_LINENO
, "HAS_LINENO");
2498 PF (HAS_DEBUG
, "HAS_DEBUG");
2499 PF (HAS_SYMS
, "HAS_SYMS");
2500 PF (HAS_LOCALS
, "HAS_LOCALS");
2501 PF (DYNAMIC
, "DYNAMIC");
2502 PF (WP_TEXT
, "WP_TEXT");
2503 PF (D_PAGED
, "D_PAGED");
2504 PF (BFD_IS_RELAXABLE
, "BFD_IS_RELAXABLE");
2505 PF (HAS_LOAD_PAGE
, "HAS_LOAD_PAGE");
2506 printf (_("\nstart address 0x"));
2507 bfd_printf_vma (abfd
, abfd
->start_address
);
2513 dump_bfd_private_header (bfd
*abfd
)
2515 bfd_print_private_bfd_data (abfd
, stdout
);
2519 /* Display a section in hexadecimal format with associated characters.
2520 Each line prefixed by the zero padded address. */
2523 dump_section (bfd
*abfd
, asection
*section
, void *dummy ATTRIBUTE_UNUSED
)
2526 bfd_size_type datasize
;
2527 bfd_size_type addr_offset
;
2528 bfd_size_type start_offset
;
2529 bfd_size_type stop_offset
;
2530 unsigned int opb
= bfd_octets_per_byte (abfd
);
2531 /* Bytes per line. */
2532 const int onaline
= 16;
2537 if ((section
->flags
& SEC_HAS_CONTENTS
) == 0)
2540 if (! process_section_p (section
))
2543 if ((datasize
= bfd_section_size (abfd
, section
)) == 0)
2546 /* Compute the address range to display. */
2547 if (start_address
== (bfd_vma
) -1
2548 || start_address
< section
->vma
)
2551 start_offset
= start_address
- section
->vma
;
2553 if (stop_address
== (bfd_vma
) -1)
2554 stop_offset
= datasize
/ opb
;
2557 if (stop_address
< section
->vma
)
2560 stop_offset
= stop_address
- section
->vma
;
2562 if (stop_offset
> datasize
/ opb
)
2563 stop_offset
= datasize
/ opb
;
2566 if (start_offset
>= stop_offset
)
2569 printf (_("Contents of section %s:"), section
->name
);
2570 if (display_file_offsets
)
2571 printf (_(" (Starting at file offset: 0x%lx)"),
2572 (unsigned long) (section
->filepos
+ start_offset
));
2575 data
= xmalloc (datasize
);
2577 bfd_get_section_contents (abfd
, section
, data
, 0, datasize
);
2581 bfd_sprintf_vma (abfd
, buf
, start_offset
+ section
->vma
);
2582 if (strlen (buf
) >= sizeof (buf
))
2586 while (buf
[count
] == '0' && buf
[count
+1] != '\0')
2588 count
= strlen (buf
) - count
;
2592 bfd_sprintf_vma (abfd
, buf
, stop_offset
+ section
->vma
- 1);
2593 if (strlen (buf
) >= sizeof (buf
))
2597 while (buf
[count
] == '0' && buf
[count
+1] != '\0')
2599 count
= strlen (buf
) - count
;
2603 for (addr_offset
= start_offset
;
2604 addr_offset
< stop_offset
; addr_offset
+= onaline
/ opb
)
2608 bfd_sprintf_vma (abfd
, buf
, (addr_offset
+ section
->vma
));
2609 count
= strlen (buf
);
2610 if ((size_t) count
>= sizeof (buf
))
2614 while (count
< width
)
2619 fputs (buf
+ count
- width
, stdout
);
2622 for (j
= addr_offset
* opb
;
2623 j
< addr_offset
* opb
+ onaline
; j
++)
2625 if (j
< stop_offset
* opb
)
2626 printf ("%02x", (unsigned) (data
[j
]));
2634 for (j
= addr_offset
* opb
;
2635 j
< addr_offset
* opb
+ onaline
; j
++)
2637 if (j
>= stop_offset
* opb
)
2640 printf ("%c", ISPRINT (data
[j
]) ? data
[j
] : '.');
2647 /* Actually display the various requested regions. */
2650 dump_data (bfd
*abfd
)
2652 bfd_map_over_sections (abfd
, dump_section
, NULL
);
2655 /* Should perhaps share code and display with nm? */
2658 dump_symbols (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_boolean dynamic
)
2668 printf ("DYNAMIC SYMBOL TABLE:\n");
2674 printf ("SYMBOL TABLE:\n");
2678 printf (_("no symbols\n"));
2680 for (count
= 0; count
< max
; count
++)
2684 if (*current
== NULL
)
2685 printf (_("no information for symbol number %ld\n"), count
);
2687 else if ((cur_bfd
= bfd_asymbol_bfd (*current
)) == NULL
)
2688 printf (_("could not determine the type of symbol number %ld\n"),
2691 else if (process_section_p ((* current
)->section
)
2692 && (dump_special_syms
2693 || !bfd_is_target_special_symbol (cur_bfd
, *current
)))
2695 const char *name
= (*current
)->name
;
2697 if (do_demangle
&& name
!= NULL
&& *name
!= '\0')
2701 /* If we want to demangle the name, we demangle it
2702 here, and temporarily clobber it while calling
2703 bfd_print_symbol. FIXME: This is a gross hack. */
2704 alloc
= bfd_demangle (cur_bfd
, name
, DMGL_ANSI
| DMGL_PARAMS
);
2706 (*current
)->name
= alloc
;
2707 bfd_print_symbol (cur_bfd
, stdout
, *current
,
2708 bfd_print_symbol_all
);
2711 (*current
)->name
= name
;
2716 bfd_print_symbol (cur_bfd
, stdout
, *current
,
2717 bfd_print_symbol_all
);
2727 dump_reloc_set (bfd
*abfd
, asection
*sec
, arelent
**relpp
, long relcount
)
2730 char *last_filename
, *last_functionname
;
2731 unsigned int last_line
;
2733 /* Get column headers lined up reasonably. */
2741 bfd_sprintf_vma (abfd
, buf
, (bfd_vma
) -1);
2742 width
= strlen (buf
) - 7;
2744 printf ("OFFSET %*s TYPE %*s VALUE \n", width
, "", 12, "");
2747 last_filename
= NULL
;
2748 last_functionname
= NULL
;
2751 for (p
= relpp
; relcount
&& *p
!= NULL
; p
++, relcount
--)
2754 const char *filename
, *functionname
;
2756 const char *sym_name
;
2757 const char *section_name
;
2759 if (start_address
!= (bfd_vma
) -1
2760 && q
->address
< start_address
)
2762 if (stop_address
!= (bfd_vma
) -1
2763 && q
->address
> stop_address
)
2766 if (with_line_numbers
2768 && bfd_find_nearest_line (abfd
, sec
, syms
, q
->address
,
2769 &filename
, &functionname
, &line
))
2771 if (functionname
!= NULL
2772 && (last_functionname
== NULL
2773 || strcmp (functionname
, last_functionname
) != 0))
2775 printf ("%s():\n", functionname
);
2776 if (last_functionname
!= NULL
)
2777 free (last_functionname
);
2778 last_functionname
= xstrdup (functionname
);
2782 && (line
!= last_line
2783 || (filename
!= NULL
2784 && last_filename
!= NULL
2785 && strcmp (filename
, last_filename
) != 0)))
2787 printf ("%s:%u\n", filename
== NULL
? "???" : filename
, line
);
2789 if (last_filename
!= NULL
)
2790 free (last_filename
);
2791 if (filename
== NULL
)
2792 last_filename
= NULL
;
2794 last_filename
= xstrdup (filename
);
2798 if (q
->sym_ptr_ptr
&& *q
->sym_ptr_ptr
)
2800 sym_name
= (*(q
->sym_ptr_ptr
))->name
;
2801 section_name
= (*(q
->sym_ptr_ptr
))->section
->name
;
2806 section_name
= NULL
;
2809 bfd_printf_vma (abfd
, q
->address
);
2810 if (q
->howto
== NULL
)
2811 printf (" *unknown* ");
2812 else if (q
->howto
->name
)
2813 printf (" %-16s ", q
->howto
->name
);
2815 printf (" %-16d ", q
->howto
->type
);
2817 objdump_print_symname (abfd
, NULL
, *q
->sym_ptr_ptr
);
2820 if (section_name
== NULL
)
2821 section_name
= "*unknown*";
2822 printf ("[%s]", section_name
);
2828 bfd_printf_vma (abfd
, q
->addend
);
2836 dump_relocs_in_section (bfd
*abfd
,
2838 void *dummy ATTRIBUTE_UNUSED
)
2844 if ( bfd_is_abs_section (section
)
2845 || bfd_is_und_section (section
)
2846 || bfd_is_com_section (section
)
2847 || (! process_section_p (section
))
2848 || ((section
->flags
& SEC_RELOC
) == 0))
2851 relsize
= bfd_get_reloc_upper_bound (abfd
, section
);
2853 bfd_fatal (bfd_get_filename (abfd
));
2855 printf ("RELOCATION RECORDS FOR [%s]:", section
->name
);
2859 printf (" (none)\n\n");
2863 relpp
= xmalloc (relsize
);
2864 relcount
= bfd_canonicalize_reloc (abfd
, section
, relpp
, syms
);
2867 bfd_fatal (bfd_get_filename (abfd
));
2868 else if (relcount
== 0)
2869 printf (" (none)\n\n");
2873 dump_reloc_set (abfd
, section
, relpp
, relcount
);
2880 dump_relocs (bfd
*abfd
)
2882 bfd_map_over_sections (abfd
, dump_relocs_in_section
, NULL
);
2886 dump_dynamic_relocs (bfd
*abfd
)
2892 relsize
= bfd_get_dynamic_reloc_upper_bound (abfd
);
2894 bfd_fatal (bfd_get_filename (abfd
));
2896 printf ("DYNAMIC RELOCATION RECORDS");
2899 printf (" (none)\n\n");
2902 relpp
= xmalloc (relsize
);
2903 relcount
= bfd_canonicalize_dynamic_reloc (abfd
, relpp
, dynsyms
);
2906 bfd_fatal (bfd_get_filename (abfd
));
2907 else if (relcount
== 0)
2908 printf (" (none)\n\n");
2912 dump_reloc_set (abfd
, NULL
, relpp
, relcount
);
2919 /* Creates a table of paths, to search for source files. */
2922 add_include_path (const char *path
)
2926 include_path_count
++;
2927 include_paths
= xrealloc (include_paths
,
2928 include_path_count
* sizeof (*include_paths
));
2929 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2930 if (path
[1] == ':' && path
[2] == 0)
2931 path
= concat (path
, ".", (const char *) 0);
2933 include_paths
[include_path_count
- 1] = path
;
2937 adjust_addresses (bfd
*abfd ATTRIBUTE_UNUSED
,
2941 if ((section
->flags
& SEC_DEBUGGING
) == 0)
2943 bfd_boolean
*has_reloc_p
= (bfd_boolean
*) arg
;
2944 section
->vma
+= adjust_section_vma
;
2946 section
->lma
+= adjust_section_vma
;
2950 /* Dump selected contents of ABFD. */
2953 dump_bfd (bfd
*abfd
)
2955 /* If we are adjusting section VMA's, change them all now. Changing
2956 the BFD information is a hack. However, we must do it, or
2957 bfd_find_nearest_line will not do the right thing. */
2958 if (adjust_section_vma
!= 0)
2960 bfd_boolean has_reloc
= (abfd
->flags
& HAS_RELOC
);
2961 bfd_map_over_sections (abfd
, adjust_addresses
, &has_reloc
);
2964 if (! dump_debugging_tags
)
2965 printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd
),
2968 print_arelt_descr (stdout
, abfd
, TRUE
);
2969 if (dump_file_header
)
2970 dump_bfd_header (abfd
);
2971 if (dump_private_headers
)
2972 dump_bfd_private_header (abfd
);
2973 if (! dump_debugging_tags
)
2975 if (dump_section_headers
)
2976 dump_headers (abfd
);
2982 || dump_dwarf_section_info
)
2983 syms
= slurp_symtab (abfd
);
2984 if (dump_dynamic_symtab
|| dump_dynamic_reloc_info
2985 || (disassemble
&& bfd_get_dynamic_symtab_upper_bound (abfd
) > 0))
2986 dynsyms
= slurp_dynamic_symtab (abfd
);
2989 synthcount
= bfd_get_synthetic_symtab (abfd
, symcount
, syms
,
2990 dynsymcount
, dynsyms
, &synthsyms
);
2996 dump_symbols (abfd
, FALSE
);
2997 if (dump_dynamic_symtab
)
2998 dump_symbols (abfd
, TRUE
);
2999 if (dump_dwarf_section_info
)
3001 if (dump_stab_section_info
)
3003 if (dump_reloc_info
&& ! disassemble
)
3005 if (dump_dynamic_reloc_info
&& ! disassemble
)
3006 dump_dynamic_relocs (abfd
);
3007 if (dump_section_contents
)
3010 disassemble_data (abfd
);
3016 dhandle
= read_debugging_info (abfd
, syms
, symcount
, TRUE
);
3017 if (dhandle
!= NULL
)
3019 if (!print_debugging_info (stdout
, dhandle
, abfd
, syms
,
3021 dump_debugging_tags
? TRUE
: FALSE
))
3023 non_fatal (_("%s: printing debugging information failed"),
3024 bfd_get_filename (abfd
));
3028 /* PR 6483: If there was no STABS or IEEE debug
3029 info in the file, try DWARF instead. */
3030 else if (! dump_dwarf_section_info
)
3060 display_bfd (bfd
*abfd
)
3064 if (bfd_check_format_matches (abfd
, bfd_object
, &matching
))
3070 if (bfd_get_error () == bfd_error_file_ambiguously_recognized
)
3072 nonfatal (bfd_get_filename (abfd
));
3073 list_matching_formats (matching
);
3078 if (bfd_get_error () != bfd_error_file_not_recognized
)
3080 nonfatal (bfd_get_filename (abfd
));
3084 if (bfd_check_format_matches (abfd
, bfd_core
, &matching
))
3090 nonfatal (bfd_get_filename (abfd
));
3092 if (bfd_get_error () == bfd_error_file_ambiguously_recognized
)
3094 list_matching_formats (matching
);
3100 display_file (char *filename
, char *target
)
3105 if (get_file_size (filename
) < 1)
3111 file
= bfd_openr (filename
, target
);
3114 nonfatal (filename
);
3118 /* If the file is an archive, process all of its elements. */
3119 if (bfd_check_format (file
, bfd_archive
))
3121 bfd
*last_arfile
= NULL
;
3123 printf (_("In archive %s:\n"), bfd_get_filename (file
));
3126 bfd_set_error (bfd_error_no_error
);
3128 arfile
= bfd_openr_next_archived_file (file
, arfile
);
3131 if (bfd_get_error () != bfd_error_no_more_archived_files
)
3132 nonfatal (bfd_get_filename (file
));
3136 display_bfd (arfile
);
3138 if (last_arfile
!= NULL
)
3139 bfd_close (last_arfile
);
3140 last_arfile
= arfile
;
3143 if (last_arfile
!= NULL
)
3144 bfd_close (last_arfile
);
3153 main (int argc
, char **argv
)
3156 char *target
= default_target
;
3157 bfd_boolean seenflag
= FALSE
;
3159 #if defined (HAVE_SETLOCALE)
3160 #if defined (HAVE_LC_MESSAGES)
3161 setlocale (LC_MESSAGES
, "");
3163 setlocale (LC_CTYPE
, "");
3166 bindtextdomain (PACKAGE
, LOCALEDIR
);
3167 textdomain (PACKAGE
);
3169 program_name
= *argv
;
3170 xmalloc_set_program_name (program_name
);
3172 START_PROGRESS (program_name
, 0);
3174 expandargv (&argc
, &argv
);
3177 set_default_bfd_target ();
3179 while ((c
= getopt_long (argc
, argv
, "pib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW",
3180 long_options
, (int *) 0))
3186 break; /* We've been given a long option. */
3191 if (disassembler_options
)
3192 /* Ignore potential memory leak for now. */
3193 disassembler_options
= concat (disassembler_options
, ",",
3194 optarg
, (const char *) NULL
);
3196 disassembler_options
= optarg
;
3199 if (only_used
== only_size
)
3202 only
= xrealloc (only
, only_size
* sizeof (char *));
3204 only
[only_used
++] = optarg
;
3207 display_file_offsets
= TRUE
;
3210 with_line_numbers
= TRUE
;
3219 enum demangling_styles style
;
3221 style
= cplus_demangle_name_to_style (optarg
);
3222 if (style
== unknown_demangling
)
3223 fatal (_("unknown demangling style `%s'"),
3226 cplus_demangle_set_style (style
);
3232 case OPTION_ADJUST_VMA
:
3233 adjust_section_vma
= parse_vma (optarg
, "--adjust-vma");
3235 case OPTION_START_ADDRESS
:
3236 start_address
= parse_vma (optarg
, "--start-address");
3237 if ((stop_address
!= (bfd_vma
) -1) && stop_address
<= start_address
)
3238 fatal (_("error: the start address should be before the end address"));
3240 case OPTION_STOP_ADDRESS
:
3241 stop_address
= parse_vma (optarg
, "--stop-address");
3242 if ((start_address
!= (bfd_vma
) -1) && stop_address
<= start_address
)
3243 fatal (_("error: the stop address should be after the start address"));
3246 if (strcmp (optarg
, "B") == 0)
3247 endian
= BFD_ENDIAN_BIG
;
3248 else if (strcmp (optarg
, "L") == 0)
3249 endian
= BFD_ENDIAN_LITTLE
;
3252 non_fatal (_("unrecognized -E option"));
3257 if (strncmp (optarg
, "big", strlen (optarg
)) == 0)
3258 endian
= BFD_ENDIAN_BIG
;
3259 else if (strncmp (optarg
, "little", strlen (optarg
)) == 0)
3260 endian
= BFD_ENDIAN_LITTLE
;
3263 non_fatal (_("unrecognized --endian type `%s'"), optarg
);
3269 dump_file_header
= TRUE
;
3273 formats_info
= TRUE
;
3277 add_include_path (optarg
);
3280 dump_private_headers
= TRUE
;
3284 dump_private_headers
= TRUE
;
3286 dump_reloc_info
= TRUE
;
3287 dump_file_header
= TRUE
;
3288 dump_ar_hdrs
= TRUE
;
3289 dump_section_headers
= TRUE
;
3297 dump_dynamic_symtab
= TRUE
;
3305 disassemble_zeroes
= TRUE
;
3309 disassemble_all
= TRUE
;
3314 with_source_code
= TRUE
;
3323 dump_debugging_tags
= 1;
3328 dump_dwarf_section_info
= TRUE
;
3331 do_debug_abbrevs
= 1;
3333 do_debug_pubnames
= 1;
3334 do_debug_aranges
= 1;
3335 do_debug_ranges
= 1;
3336 do_debug_frames
= 1;
3337 do_debug_macinfo
= 1;
3342 dump_stab_section_info
= TRUE
;
3346 dump_section_contents
= TRUE
;
3350 dump_reloc_info
= TRUE
;
3354 dump_dynamic_reloc_info
= TRUE
;
3358 dump_ar_hdrs
= TRUE
;
3362 dump_section_headers
= TRUE
;
3370 show_version
= TRUE
;
3380 print_version ("objdump");
3386 exit_status
= display_info ();
3390 display_file ("a.out", target
);
3392 for (; optind
< argc
;)
3393 display_file (argv
[optind
++], target
);
3396 END_PROGRESS (program_name
);