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1 | /* objdump.c -- dump information about an object file. | |
2 | Copyright (C) 1990-2025 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 "bucomm.h" | |
56 | #include "elfcomm.h" | |
57 | #include "demanguse.h" | |
58 | #include "dwarf.h" | |
59 | #include "ctf-api.h" | |
60 | #include "sframe-api.h" | |
61 | #include "getopt.h" | |
62 | #include "safe-ctype.h" | |
63 | #include "dis-asm.h" | |
64 | #include "libiberty.h" | |
65 | #include "demangle.h" | |
66 | #include "filenames.h" | |
67 | #include "debug.h" | |
68 | #include "budbg.h" | |
69 | #include "objdump.h" | |
70 | ||
71 | #ifdef HAVE_MMAP | |
72 | #include <sys/mman.h> | |
73 | #endif | |
74 | ||
75 | #ifdef HAVE_LIBDEBUGINFOD | |
76 | #include <elfutils/debuginfod.h> | |
77 | #endif | |
78 | ||
79 | /* Internal headers for the ELF .stab-dump code - sorry. */ | |
80 | #define BYTES_IN_WORD 32 | |
81 | #include "aout/aout64.h" | |
82 | ||
83 | /* Exit status. */ | |
84 | static int exit_status = 0; | |
85 | ||
86 | static char *default_target = NULL; /* Default at runtime. */ | |
87 | ||
88 | /* The following variables are set based on arguments passed on the | |
89 | command line. */ | |
90 | static int show_version = 0; /* Show the version number. */ | |
91 | static int dump_section_contents; /* -s */ | |
92 | static int dump_section_headers; /* -h */ | |
93 | static bool dump_file_header; /* -f */ | |
94 | static int dump_symtab; /* -t */ | |
95 | static int dump_dynamic_symtab; /* -T */ | |
96 | static int dump_reloc_info; /* -r */ | |
97 | static int dump_dynamic_reloc_info; /* -R */ | |
98 | static int dump_ar_hdrs; /* -a */ | |
99 | static int dump_private_headers; /* -p */ | |
100 | static char *dump_private_options; /* -P */ | |
101 | static int no_addresses; /* --no-addresses */ | |
102 | static int prefix_addresses; /* --prefix-addresses */ | |
103 | static int with_line_numbers; /* -l */ | |
104 | static bool with_source_code; /* -S */ | |
105 | static int show_raw_insn; /* --show-raw-insn */ | |
106 | static int dump_dwarf_section_info; /* --dwarf */ | |
107 | static int dump_stab_section_info; /* --stabs */ | |
108 | static int dump_ctf_section_info; /* --ctf */ | |
109 | static char *dump_ctf_section_name; | |
110 | static char *dump_ctf_parent_name; /* --ctf-parent */ | |
111 | static char *dump_ctf_parent_section_name; /* --ctf-parent-section */ | |
112 | static int dump_sframe_section_info; /* --sframe */ | |
113 | static char *dump_sframe_section_name; | |
114 | static int do_demangle; /* -C, --demangle */ | |
115 | static bool disassemble; /* -d */ | |
116 | static bool disassemble_all; /* -D */ | |
117 | static int disassemble_zeroes; /* --disassemble-zeroes */ | |
118 | static bool formats_info; /* -i */ | |
119 | int wide_output; /* -w */ | |
120 | #define MAX_INSN_WIDTH 49 | |
121 | static unsigned long insn_width; /* --insn-width */ | |
122 | static bfd_vma start_address = (bfd_vma) -1; /* --start-address */ | |
123 | static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */ | |
124 | static int dump_debugging; /* --debugging */ | |
125 | static int dump_debugging_tags; /* --debugging-tags */ | |
126 | static int suppress_bfd_header; | |
127 | static int dump_special_syms = 0; /* --special-syms */ | |
128 | static bfd_vma adjust_section_vma = 0; /* --adjust-vma */ | |
129 | static int file_start_context = 0; /* --file-start-context */ | |
130 | static bool display_file_offsets; /* -F */ | |
131 | static const char *prefix; /* --prefix */ | |
132 | static int prefix_strip; /* --prefix-strip */ | |
133 | static size_t prefix_length; | |
134 | static bool unwind_inlines; /* --inlines. */ | |
135 | static const char * source_comment; /* --source_comment. */ | |
136 | static bool visualize_jumps = false; /* --visualize-jumps. */ | |
137 | static bool color_output = false; /* --visualize-jumps=color. */ | |
138 | static bool extended_color_output = false; /* --visualize-jumps=extended-color. */ | |
139 | static int process_links = false; /* --process-links. */ | |
140 | static int show_all_symbols; /* --show-all-symbols. */ | |
141 | static bool decompressed_dumps = false; /* -Z, --decompress. */ | |
142 | ||
143 | static struct symbol_entry | |
144 | { | |
145 | const char *name; | |
146 | struct symbol_entry *next; | |
147 | } *disasm_sym_list; /* Disassembly start symbol(s). */ | |
148 | ||
149 | static enum color_selection | |
150 | { | |
151 | on_if_terminal_output, | |
152 | on, /* --disassembler-color=color. */ | |
153 | off, /* --disassembler-color=off. */ | |
154 | extended /* --disassembler-color=extended-color. */ | |
155 | } disassembler_color = | |
156 | #if DEFAULT_FOR_COLORED_DISASSEMBLY | |
157 | on_if_terminal_output; | |
158 | #else | |
159 | off; | |
160 | #endif | |
161 | ||
162 | static int dump_any_debugging; | |
163 | static int demangle_flags = DMGL_ANSI | DMGL_PARAMS; | |
164 | ||
165 | /* This is reset to false each time we enter the disassembler, and set true | |
166 | when the disassembler emits something in the dis_style_comment_start | |
167 | style. Once this is true, all further output on that line is done in | |
168 | the comment style. This only has an effect when disassembler coloring | |
169 | is turned on. */ | |
170 | static bool disassembler_in_comment = false; | |
171 | ||
172 | /* A structure to record the sections mentioned in -j switches. */ | |
173 | struct only | |
174 | { | |
175 | const char *name; /* The name of the section. */ | |
176 | bool seen; /* A flag to indicate that the section has been found in one or more input files. */ | |
177 | struct only *next; /* Pointer to the next structure in the list. */ | |
178 | }; | |
179 | /* Pointer to an array of 'only' structures. | |
180 | This pointer is NULL if the -j switch has not been used. */ | |
181 | static struct only * only_list = NULL; | |
182 | ||
183 | /* Variables for handling include file path table. */ | |
184 | static const char **include_paths; | |
185 | static int include_path_count; | |
186 | ||
187 | /* Extra info to pass to the section disassembler and address printing | |
188 | function. */ | |
189 | struct objdump_disasm_info | |
190 | { | |
191 | bfd *abfd; | |
192 | bool require_sec; | |
193 | disassembler_ftype disassemble_fn; | |
194 | arelent *reloc; | |
195 | struct symbol_entry *symbol_list; | |
196 | }; | |
197 | ||
198 | /* Architecture to disassemble for, or default if NULL. */ | |
199 | static char *machine = NULL; | |
200 | ||
201 | /* Target specific options to the disassembler. */ | |
202 | static char *disassembler_options = NULL; | |
203 | ||
204 | /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */ | |
205 | static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN; | |
206 | ||
207 | /* The symbol table. */ | |
208 | static asymbol **syms; | |
209 | ||
210 | /* Number of symbols in `syms'. */ | |
211 | static long symcount = 0; | |
212 | ||
213 | /* The sorted symbol table. */ | |
214 | static asymbol **sorted_syms; | |
215 | ||
216 | /* Number of symbols in `sorted_syms'. */ | |
217 | static long sorted_symcount = 0; | |
218 | ||
219 | /* The dynamic symbol table. */ | |
220 | static asymbol **dynsyms; | |
221 | ||
222 | /* The synthetic symbol table. */ | |
223 | static asymbol *synthsyms; | |
224 | static long synthcount = 0; | |
225 | ||
226 | /* Number of symbols in `dynsyms'. */ | |
227 | static long dynsymcount = 0; | |
228 | ||
229 | static bfd_byte *stabs; | |
230 | static bfd_size_type stab_size; | |
231 | ||
232 | static bfd_byte *strtab; | |
233 | static bfd_size_type stabstr_size; | |
234 | ||
235 | /* Handlers for -P/--private. */ | |
236 | static const struct objdump_private_desc * const objdump_private_vectors[] = | |
237 | { | |
238 | OBJDUMP_PRIVATE_VECTORS | |
239 | NULL | |
240 | }; | |
241 | ||
242 | /* The list of detected jumps inside a function. */ | |
243 | static struct jump_info *detected_jumps = NULL; | |
244 | ||
245 | typedef enum unicode_display_type | |
246 | { | |
247 | unicode_default = 0, | |
248 | unicode_locale, | |
249 | unicode_escape, | |
250 | unicode_hex, | |
251 | unicode_highlight, | |
252 | unicode_invalid | |
253 | } unicode_display_type; | |
254 | ||
255 | static unicode_display_type unicode_display = unicode_default; | |
256 | \f | |
257 | static void usage (FILE *, int) ATTRIBUTE_NORETURN; | |
258 | static void | |
259 | usage (FILE *stream, int status) | |
260 | { | |
261 | fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name); | |
262 | fprintf (stream, _(" Display information from object <file(s)>.\n")); | |
263 | fprintf (stream, _(" At least one of the following switches must be given:\n")); | |
264 | fprintf (stream, _("\ | |
265 | -a, --archive-headers Display archive header information\n")); | |
266 | fprintf (stream, _("\ | |
267 | -f, --file-headers Display the contents of the overall file header\n")); | |
268 | fprintf (stream, _("\ | |
269 | -p, --private-headers Display object format specific file header contents\n")); | |
270 | fprintf (stream, _("\ | |
271 | -P, --private=OPT,OPT... Display object format specific contents\n")); | |
272 | fprintf (stream, _("\ | |
273 | -h, --[section-]headers Display the contents of the section headers\n")); | |
274 | fprintf (stream, _("\ | |
275 | -x, --all-headers Display the contents of all headers\n")); | |
276 | fprintf (stream, _("\ | |
277 | -d, --disassemble Display assembler contents of executable sections\n")); | |
278 | fprintf (stream, _("\ | |
279 | -D, --disassemble-all Display assembler contents of all sections\n")); | |
280 | fprintf (stream, _("\ | |
281 | --disassemble=<sym> Display assembler contents from <sym>\n")); | |
282 | fprintf (stream, _("\ | |
283 | -S, --source Intermix source code with disassembly\n")); | |
284 | fprintf (stream, _("\ | |
285 | --source-comment[=<txt>] Prefix lines of source code with <txt>\n")); | |
286 | fprintf (stream, _("\ | |
287 | -s, --full-contents Display the full contents of all sections requested\n")); | |
288 | fprintf (stream, _("\ | |
289 | -Z, --decompress Decompress section(s) before displaying their contents\n")); | |
290 | fprintf (stream, _("\ | |
291 | -g, --debugging Display debug information in object file\n")); | |
292 | fprintf (stream, _("\ | |
293 | -e, --debugging-tags Display debug information using ctags style\n")); | |
294 | fprintf (stream, _("\ | |
295 | -G, --stabs Display (in raw form) any STABS info in the file\n")); | |
296 | fprintf (stream, _("\ | |
297 | -W, --dwarf[a/=abbrev, A/=addr, r/=aranges, c/=cu_index, L/=decodedline,\n\ | |
298 | f/=frames, F/=frames-interp, g/=gdb_index, i/=info, o/=loc,\n\ | |
299 | m/=macro, p/=pubnames, t/=pubtypes, R/=Ranges, l/=rawline,\n\ | |
300 | s/=str, O/=str-offsets, u/=trace_abbrev, T/=trace_aranges,\n\ | |
301 | U/=trace_info]\n\ | |
302 | Display the contents of DWARF debug sections\n")); | |
303 | fprintf (stream, _("\ | |
304 | -Wk,--dwarf=links Display the contents of sections that link to\n\ | |
305 | separate debuginfo files\n")); | |
306 | #if DEFAULT_FOR_FOLLOW_LINKS | |
307 | fprintf (stream, _("\ | |
308 | -WK,--dwarf=follow-links\n\ | |
309 | Follow links to separate debug info files (default)\n")); | |
310 | fprintf (stream, _("\ | |
311 | -WN,--dwarf=no-follow-links\n\ | |
312 | Do not follow links to separate debug info files\n")); | |
313 | #else | |
314 | fprintf (stream, _("\ | |
315 | -WK,--dwarf=follow-links\n\ | |
316 | Follow links to separate debug info files\n")); | |
317 | fprintf (stream, _("\ | |
318 | -WN,--dwarf=no-follow-links\n\ | |
319 | Do not follow links to separate debug info files\n\ | |
320 | (default)\n")); | |
321 | #endif | |
322 | #if HAVE_LIBDEBUGINFOD | |
323 | fprintf (stream, _("\ | |
324 | -WD --dwarf=use-debuginfod\n\ | |
325 | When following links, also query debuginfod servers (default)\n")); | |
326 | fprintf (stream, _("\ | |
327 | -WE --dwarf=do-not-use-debuginfod\n\ | |
328 | When following links, do not query debuginfod servers\n")); | |
329 | #endif | |
330 | fprintf (stream, _("\ | |
331 | -L, --process-links Display the contents of non-debug sections in\n\ | |
332 | separate debuginfo files. (Implies -WK)\n")); | |
333 | #ifdef ENABLE_LIBCTF | |
334 | fprintf (stream, _("\ | |
335 | --ctf[=SECTION] Display CTF info from SECTION, (default `.ctf')\n")); | |
336 | #endif | |
337 | fprintf (stream, _("\ | |
338 | --sframe[=SECTION] Display SFrame info from SECTION, (default '.sframe')\n")); | |
339 | fprintf (stream, _("\ | |
340 | -t, --syms Display the contents of the symbol table(s)\n")); | |
341 | fprintf (stream, _("\ | |
342 | -T, --dynamic-syms Display the contents of the dynamic symbol table\n")); | |
343 | fprintf (stream, _("\ | |
344 | -r, --reloc Display the relocation entries in the file\n")); | |
345 | fprintf (stream, _("\ | |
346 | -R, --dynamic-reloc Display the dynamic relocation entries in the file\n")); | |
347 | fprintf (stream, _("\ | |
348 | @<file> Read options from <file>\n")); | |
349 | fprintf (stream, _("\ | |
350 | -v, --version Display this program's version number\n")); | |
351 | fprintf (stream, _("\ | |
352 | -i, --info List object formats and architectures supported\n")); | |
353 | fprintf (stream, _("\ | |
354 | -H, --help Display this information\n")); | |
355 | ||
356 | if (status != 2) | |
357 | { | |
358 | const struct objdump_private_desc * const *desc; | |
359 | ||
360 | fprintf (stream, _("\n The following switches are optional:\n")); | |
361 | fprintf (stream, _("\ | |
362 | -b, --target=BFDNAME Specify the target object format as BFDNAME\n")); | |
363 | fprintf (stream, _("\ | |
364 | -m, --architecture=MACHINE Specify the target architecture as MACHINE\n")); | |
365 | fprintf (stream, _("\ | |
366 | -j, --section=NAME Only display information for section NAME\n")); | |
367 | fprintf (stream, _("\ | |
368 | -M, --disassembler-options=OPT Pass text OPT on to the disassembler\n")); | |
369 | fprintf (stream, _("\ | |
370 | -EB --endian=big Assume big endian format when disassembling\n")); | |
371 | fprintf (stream, _("\ | |
372 | -EL --endian=little Assume little endian format when disassembling\n")); | |
373 | fprintf (stream, _("\ | |
374 | --file-start-context Include context from start of file (with -S)\n")); | |
375 | fprintf (stream, _("\ | |
376 | -I, --include=DIR Add DIR to search list for source files\n")); | |
377 | fprintf (stream, _("\ | |
378 | -l, --line-numbers Include line numbers and filenames in output\n")); | |
379 | fprintf (stream, _("\ | |
380 | -F, --file-offsets Include file offsets when displaying information\n")); | |
381 | fprintf (stream, _("\ | |
382 | -C, --demangle[=STYLE] Decode mangled/processed symbol names\n")); | |
383 | display_demangler_styles (stream, _("\ | |
384 | STYLE can be ")); | |
385 | fprintf (stream, _("\ | |
386 | --recurse-limit Enable a limit on recursion whilst demangling\n\ | |
387 | (default)\n")); | |
388 | fprintf (stream, _("\ | |
389 | --no-recurse-limit Disable a limit on recursion whilst demangling\n")); | |
390 | fprintf (stream, _("\ | |
391 | -w, --wide Format output for more than 80 columns\n")); | |
392 | fprintf (stream, _("\ | |
393 | -U[d|l|i|x|e|h] Controls the display of UTF-8 unicode characters\n\ | |
394 | --unicode=[default|locale|invalid|hex|escape|highlight]\n")); | |
395 | fprintf (stream, _("\ | |
396 | -z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n")); | |
397 | fprintf (stream, _("\ | |
398 | --start-address=ADDR Only process data whose address is >= ADDR\n")); | |
399 | fprintf (stream, _("\ | |
400 | --stop-address=ADDR Only process data whose address is < ADDR\n")); | |
401 | fprintf (stream, _("\ | |
402 | --no-addresses Do not print address alongside disassembly\n")); | |
403 | fprintf (stream, _("\ | |
404 | --prefix-addresses Print complete address alongside disassembly\n")); | |
405 | fprintf (stream, _("\ | |
406 | --[no-]show-raw-insn Display hex alongside symbolic disassembly\n")); | |
407 | fprintf (stream, _("\ | |
408 | --insn-width=WIDTH Display WIDTH bytes on a single line for -d\n")); | |
409 | fprintf (stream, _("\ | |
410 | --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n")); | |
411 | fprintf (stream, _("\ | |
412 | --show-all-symbols When disassembling, display all symbols at a given address\n")); | |
413 | fprintf (stream, _("\ | |
414 | --special-syms Include special symbols in symbol dumps\n")); | |
415 | fprintf (stream, _("\ | |
416 | --inlines Print all inlines for source line (with -l)\n")); | |
417 | fprintf (stream, _("\ | |
418 | --prefix=PREFIX Add PREFIX to absolute paths for -S\n")); | |
419 | fprintf (stream, _("\ | |
420 | --prefix-strip=LEVEL Strip initial directory names for -S\n")); | |
421 | fprintf (stream, _("\ | |
422 | --dwarf-depth=N Do not display DIEs at depth N or greater\n")); | |
423 | fprintf (stream, _("\ | |
424 | --dwarf-start=N Display DIEs starting at offset N\n")); | |
425 | fprintf (stream, _("\ | |
426 | --dwarf-check Make additional dwarf consistency checks.\n")); | |
427 | #ifdef ENABLE_LIBCTF | |
428 | fprintf (stream, _("\ | |
429 | --ctf-parent=NAME Use CTF archive member NAME as the CTF parent\n")); | |
430 | #endif | |
431 | fprintf (stream, _("\ | |
432 | --visualize-jumps Visualize jumps by drawing ASCII art lines\n")); | |
433 | fprintf (stream, _("\ | |
434 | --visualize-jumps=color Use colors in the ASCII art\n")); | |
435 | fprintf (stream, _("\ | |
436 | --visualize-jumps=extended-color\n\ | |
437 | Use extended 8-bit color codes\n")); | |
438 | fprintf (stream, _("\ | |
439 | --visualize-jumps=off Disable jump visualization\n")); | |
440 | #if DEFAULT_FOR_COLORED_DISASSEMBLY | |
441 | fprintf (stream, _("\ | |
442 | --disassembler-color=off Disable disassembler color output.\n")); | |
443 | fprintf (stream, _("\ | |
444 | --disassembler-color=terminal Enable disassembler color output if displaying on a terminal. (default)\n")); | |
445 | #else | |
446 | fprintf (stream, _("\ | |
447 | --disassembler-color=off Disable disassembler color output. (default)\n")); | |
448 | fprintf (stream, _("\ | |
449 | --disassembler-color=terminal Enable disassembler color output if displaying on a terminal.\n")); | |
450 | #endif | |
451 | fprintf (stream, _("\ | |
452 | --disassembler-color=on Enable disassembler color output.\n")); | |
453 | fprintf (stream, _("\ | |
454 | --disassembler-color=extended Use 8-bit colors in disassembler output.\n\n")); | |
455 | ||
456 | list_supported_targets (program_name, stream); | |
457 | list_supported_architectures (program_name, stream); | |
458 | ||
459 | disassembler_usage (stream); | |
460 | ||
461 | if (objdump_private_vectors[0] != NULL) | |
462 | { | |
463 | fprintf (stream, | |
464 | _("\nOptions supported for -P/--private switch:\n")); | |
465 | for (desc = objdump_private_vectors; *desc != NULL; desc++) | |
466 | (*desc)->help (stream); | |
467 | } | |
468 | } | |
469 | if (REPORT_BUGS_TO[0] && status == 0) | |
470 | fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO); | |
471 | exit (status); | |
472 | } | |
473 | ||
474 | /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ | |
475 | enum option_values | |
476 | { | |
477 | OPTION_ENDIAN=150, | |
478 | OPTION_START_ADDRESS, | |
479 | OPTION_STOP_ADDRESS, | |
480 | OPTION_DWARF, | |
481 | OPTION_PREFIX, | |
482 | OPTION_PREFIX_STRIP, | |
483 | OPTION_INSN_WIDTH, | |
484 | OPTION_ADJUST_VMA, | |
485 | OPTION_DWARF_DEPTH, | |
486 | OPTION_DWARF_CHECK, | |
487 | OPTION_DWARF_START, | |
488 | OPTION_RECURSE_LIMIT, | |
489 | OPTION_NO_RECURSE_LIMIT, | |
490 | OPTION_INLINES, | |
491 | OPTION_SOURCE_COMMENT, | |
492 | #ifdef ENABLE_LIBCTF | |
493 | OPTION_CTF, | |
494 | OPTION_CTF_PARENT, | |
495 | OPTION_CTF_PARENT_SECTION, | |
496 | #endif | |
497 | OPTION_SFRAME, | |
498 | OPTION_VISUALIZE_JUMPS, | |
499 | OPTION_DISASSEMBLER_COLOR | |
500 | }; | |
501 | ||
502 | static struct option long_options[]= | |
503 | { | |
504 | {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA}, | |
505 | {"all-headers", no_argument, NULL, 'x'}, | |
506 | {"architecture", required_argument, NULL, 'm'}, | |
507 | {"archive-headers", no_argument, NULL, 'a'}, | |
508 | #ifdef ENABLE_LIBCTF | |
509 | {"ctf", optional_argument, NULL, OPTION_CTF}, | |
510 | {"ctf-parent", required_argument, NULL, OPTION_CTF_PARENT}, | |
511 | {"ctf-parent-section", required_argument, NULL, OPTION_CTF_PARENT_SECTION}, | |
512 | #endif | |
513 | {"debugging", no_argument, NULL, 'g'}, | |
514 | {"debugging-tags", no_argument, NULL, 'e'}, | |
515 | {"decompress", no_argument, NULL, 'Z'}, | |
516 | {"demangle", optional_argument, NULL, 'C'}, | |
517 | {"disassemble", optional_argument, NULL, 'd'}, | |
518 | {"disassemble-all", no_argument, NULL, 'D'}, | |
519 | {"disassemble-zeroes", no_argument, NULL, 'z'}, | |
520 | {"disassembler-options", required_argument, NULL, 'M'}, | |
521 | {"dwarf", optional_argument, NULL, OPTION_DWARF}, | |
522 | {"dwarf-check", no_argument, 0, OPTION_DWARF_CHECK}, | |
523 | {"dwarf-depth", required_argument, 0, OPTION_DWARF_DEPTH}, | |
524 | {"dwarf-start", required_argument, 0, OPTION_DWARF_START}, | |
525 | {"dynamic-reloc", no_argument, NULL, 'R'}, | |
526 | {"dynamic-syms", no_argument, NULL, 'T'}, | |
527 | {"endian", required_argument, NULL, OPTION_ENDIAN}, | |
528 | {"file-headers", no_argument, NULL, 'f'}, | |
529 | {"file-offsets", no_argument, NULL, 'F'}, | |
530 | {"file-start-context", no_argument, &file_start_context, 1}, | |
531 | {"full-contents", no_argument, NULL, 's'}, | |
532 | {"headers", no_argument, NULL, 'h'}, | |
533 | {"help", no_argument, NULL, 'H'}, | |
534 | {"include", required_argument, NULL, 'I'}, | |
535 | {"info", no_argument, NULL, 'i'}, | |
536 | {"inlines", no_argument, 0, OPTION_INLINES}, | |
537 | {"insn-width", required_argument, NULL, OPTION_INSN_WIDTH}, | |
538 | {"line-numbers", no_argument, NULL, 'l'}, | |
539 | {"no-addresses", no_argument, &no_addresses, 1}, | |
540 | {"no-recurse-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT}, | |
541 | {"no-recursion-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT}, | |
542 | {"no-show-raw-insn", no_argument, &show_raw_insn, -1}, | |
543 | {"prefix", required_argument, NULL, OPTION_PREFIX}, | |
544 | {"prefix-addresses", no_argument, &prefix_addresses, 1}, | |
545 | {"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP}, | |
546 | {"private", required_argument, NULL, 'P'}, | |
547 | {"private-headers", no_argument, NULL, 'p'}, | |
548 | {"process-links", no_argument, &process_links, true}, | |
549 | {"recurse-limit", no_argument, NULL, OPTION_RECURSE_LIMIT}, | |
550 | {"recursion-limit", no_argument, NULL, OPTION_RECURSE_LIMIT}, | |
551 | {"reloc", no_argument, NULL, 'r'}, | |
552 | {"section", required_argument, NULL, 'j'}, | |
553 | {"section-headers", no_argument, NULL, 'h'}, | |
554 | {"sframe", optional_argument, NULL, OPTION_SFRAME}, | |
555 | {"show-all-symbols", no_argument, &show_all_symbols, 1}, | |
556 | {"show-raw-insn", no_argument, &show_raw_insn, 1}, | |
557 | {"source", no_argument, NULL, 'S'}, | |
558 | {"source-comment", optional_argument, NULL, OPTION_SOURCE_COMMENT}, | |
559 | {"special-syms", no_argument, &dump_special_syms, 1}, | |
560 | {"stabs", no_argument, NULL, 'G'}, | |
561 | {"start-address", required_argument, NULL, OPTION_START_ADDRESS}, | |
562 | {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS}, | |
563 | {"syms", no_argument, NULL, 't'}, | |
564 | {"target", required_argument, NULL, 'b'}, | |
565 | {"unicode", required_argument, NULL, 'U'}, | |
566 | {"version", no_argument, NULL, 'V'}, | |
567 | {"visualize-jumps", optional_argument, 0, OPTION_VISUALIZE_JUMPS}, | |
568 | {"wide", no_argument, NULL, 'w'}, | |
569 | {"disassembler-color", required_argument, NULL, OPTION_DISASSEMBLER_COLOR}, | |
570 | {NULL, no_argument, NULL, 0} | |
571 | }; | |
572 | \f | |
573 | static void | |
574 | my_bfd_nonfatal (const char *msg) | |
575 | { | |
576 | bfd_nonfatal (msg); | |
577 | exit_status = 1; | |
578 | } | |
579 | ||
580 | /* Convert a potential UTF-8 encoded sequence in IN into characters in OUT. | |
581 | The conversion format is controlled by the unicode_display variable. | |
582 | Returns the number of characters added to OUT. | |
583 | Returns the number of bytes consumed from IN in CONSUMED. | |
584 | Always consumes at least one byte and displays at least one character. */ | |
585 | ||
586 | static unsigned int | |
587 | display_utf8 (const unsigned char * in, char * out, unsigned int * consumed) | |
588 | { | |
589 | char * orig_out = out; | |
590 | unsigned int nchars = 0; | |
591 | unsigned int j; | |
592 | ||
593 | if (unicode_display == unicode_default) | |
594 | goto invalid; | |
595 | ||
596 | if (in[0] < 0xc0) | |
597 | goto invalid; | |
598 | ||
599 | if ((in[1] & 0xc0) != 0x80) | |
600 | goto invalid; | |
601 | ||
602 | if ((in[0] & 0x20) == 0) | |
603 | { | |
604 | nchars = 2; | |
605 | goto valid; | |
606 | } | |
607 | ||
608 | if ((in[2] & 0xc0) != 0x80) | |
609 | goto invalid; | |
610 | ||
611 | if ((in[0] & 0x10) == 0) | |
612 | { | |
613 | nchars = 3; | |
614 | goto valid; | |
615 | } | |
616 | ||
617 | if ((in[3] & 0xc0) != 0x80) | |
618 | goto invalid; | |
619 | ||
620 | nchars = 4; | |
621 | ||
622 | valid: | |
623 | switch (unicode_display) | |
624 | { | |
625 | case unicode_locale: | |
626 | /* Copy the bytes into the output buffer as is. */ | |
627 | memcpy (out, in, nchars); | |
628 | out += nchars; | |
629 | break; | |
630 | ||
631 | case unicode_invalid: | |
632 | case unicode_hex: | |
633 | *out++ = unicode_display == unicode_hex ? '<' : '{'; | |
634 | *out++ = '0'; | |
635 | *out++ = 'x'; | |
636 | for (j = 0; j < nchars; j++) | |
637 | out += sprintf (out, "%02x", in [j]); | |
638 | *out++ = unicode_display == unicode_hex ? '>' : '}'; | |
639 | break; | |
640 | ||
641 | case unicode_highlight: | |
642 | if (isatty (1)) | |
643 | out += sprintf (out, "\x1B[31;47m"); /* Red. */ | |
644 | /* Fall through. */ | |
645 | case unicode_escape: | |
646 | switch (nchars) | |
647 | { | |
648 | case 2: | |
649 | out += sprintf (out, "\\u%02x%02x", | |
650 | ((in[0] & 0x1c) >> 2), | |
651 | ((in[0] & 0x03) << 6) | (in[1] & 0x3f)); | |
652 | break; | |
653 | ||
654 | case 3: | |
655 | out += sprintf (out, "\\u%02x%02x", | |
656 | ((in[0] & 0x0f) << 4) | ((in[1] & 0x3c) >> 2), | |
657 | ((in[1] & 0x03) << 6) | ((in[2] & 0x3f))); | |
658 | break; | |
659 | ||
660 | case 4: | |
661 | out += sprintf (out, "\\u%02x%02x%02x", | |
662 | ((in[0] & 0x07) << 6) | ((in[1] & 0x3c) >> 2), | |
663 | ((in[1] & 0x03) << 6) | ((in[2] & 0x3c) >> 2), | |
664 | ((in[2] & 0x03) << 6) | ((in[3] & 0x3f))); | |
665 | break; | |
666 | default: | |
667 | /* URG. */ | |
668 | break; | |
669 | } | |
670 | ||
671 | if (unicode_display == unicode_highlight && isatty (1)) | |
672 | out += sprintf (out, "\x1B[0m"); /* Default colour. */ | |
673 | break; | |
674 | ||
675 | default: | |
676 | /* URG */ | |
677 | break; | |
678 | } | |
679 | ||
680 | * consumed = nchars; | |
681 | return out - orig_out; | |
682 | ||
683 | invalid: | |
684 | /* Not a valid UTF-8 sequence. */ | |
685 | *out = *in; | |
686 | * consumed = 1; | |
687 | return 1; | |
688 | } | |
689 | ||
690 | /* Returns a version of IN with any control characters | |
691 | replaced by escape sequences. Uses a static buffer | |
692 | if necessary. | |
693 | ||
694 | If unicode display is enabled, then also handles the | |
695 | conversion of unicode characters. */ | |
696 | ||
697 | static const char * | |
698 | sanitize_string (const char * in) | |
699 | { | |
700 | static char * buffer = NULL; | |
701 | static size_t buffer_len = 0; | |
702 | const char * original = in; | |
703 | char * out; | |
704 | ||
705 | /* Paranoia. */ | |
706 | if (in == NULL) | |
707 | return ""; | |
708 | ||
709 | /* See if any conversion is necessary. In the majority | |
710 | of cases it will not be needed. */ | |
711 | do | |
712 | { | |
713 | unsigned char c = *in++; | |
714 | ||
715 | if (c == 0) | |
716 | return original; | |
717 | ||
718 | if (ISCNTRL (c)) | |
719 | break; | |
720 | ||
721 | if (unicode_display != unicode_default && c >= 0xc0) | |
722 | break; | |
723 | } | |
724 | while (1); | |
725 | ||
726 | /* Copy the input, translating as needed. */ | |
727 | in = original; | |
728 | /* For 2 char unicode, max out is 12 (colour escapes) + 6, ie. 9 per in | |
729 | For hex, max out is 8 for 2 char unicode, ie. 4 per in. | |
730 | 3 and 4 char unicode produce less output for input. */ | |
731 | size_t max_needed = strlen (in) * 9 + 1; | |
732 | if (buffer_len < max_needed) | |
733 | { | |
734 | buffer_len = max_needed; | |
735 | free (buffer); | |
736 | buffer = xmalloc (buffer_len); | |
737 | } | |
738 | ||
739 | out = buffer; | |
740 | do | |
741 | { | |
742 | unsigned char c = *in++; | |
743 | ||
744 | if (c == 0) | |
745 | break; | |
746 | ||
747 | if (ISCNTRL (c)) | |
748 | { | |
749 | *out++ = '^'; | |
750 | *out++ = c + 0x40; | |
751 | } | |
752 | else if (unicode_display != unicode_default && c >= 0xc0) | |
753 | { | |
754 | unsigned int num_consumed; | |
755 | ||
756 | out += display_utf8 ((const unsigned char *) --in, out, &num_consumed); | |
757 | in += num_consumed; | |
758 | } | |
759 | else | |
760 | *out++ = c; | |
761 | } | |
762 | while (1); | |
763 | ||
764 | *out = 0; | |
765 | return buffer; | |
766 | } | |
767 | ||
768 | \f | |
769 | /* Returns TRUE if the specified section should be dumped. */ | |
770 | ||
771 | static bool | |
772 | process_section_p (asection * section) | |
773 | { | |
774 | struct only * only; | |
775 | ||
776 | if (only_list == NULL) | |
777 | return true; | |
778 | ||
779 | for (only = only_list; only; only = only->next) | |
780 | if (strcmp (only->name, section->name) == 0) | |
781 | { | |
782 | only->seen = true; | |
783 | return true; | |
784 | } | |
785 | ||
786 | return false; | |
787 | } | |
788 | ||
789 | /* Add an entry to the 'only' list. */ | |
790 | ||
791 | static void | |
792 | add_only (char * name) | |
793 | { | |
794 | struct only * only; | |
795 | ||
796 | /* First check to make sure that we do not | |
797 | already have an entry for this name. */ | |
798 | for (only = only_list; only; only = only->next) | |
799 | if (strcmp (only->name, name) == 0) | |
800 | return; | |
801 | ||
802 | only = xmalloc (sizeof * only); | |
803 | only->name = name; | |
804 | only->seen = false; | |
805 | only->next = only_list; | |
806 | only_list = only; | |
807 | } | |
808 | ||
809 | /* Release the memory used by the 'only' list. | |
810 | PR 11225: Issue a warning message for unseen sections. | |
811 | Only do this if none of the sections were seen. This is mainly to support | |
812 | tools like the GAS testsuite where an object file is dumped with a list of | |
813 | generic section names known to be present in a range of different file | |
814 | formats. */ | |
815 | ||
816 | static void | |
817 | free_only_list (void) | |
818 | { | |
819 | bool at_least_one_seen = false; | |
820 | struct only * only; | |
821 | struct only * next; | |
822 | ||
823 | if (only_list == NULL) | |
824 | return; | |
825 | ||
826 | for (only = only_list; only; only = only->next) | |
827 | if (only->seen) | |
828 | { | |
829 | at_least_one_seen = true; | |
830 | break; | |
831 | } | |
832 | ||
833 | for (only = only_list; only; only = next) | |
834 | { | |
835 | if (! at_least_one_seen) | |
836 | { | |
837 | non_fatal (_("section '%s' mentioned in a -j option, " | |
838 | "but not found in any input file"), | |
839 | only->name); | |
840 | exit_status = 1; | |
841 | } | |
842 | next = only->next; | |
843 | free (only); | |
844 | } | |
845 | } | |
846 | ||
847 | \f | |
848 | static void | |
849 | dump_section_header (bfd *abfd, asection *section, void *data) | |
850 | { | |
851 | char *comma = ""; | |
852 | unsigned int opb = bfd_octets_per_byte (abfd, section); | |
853 | int longest_section_name = *((int *) data); | |
854 | ||
855 | /* Ignore linker created section. See elfNN_ia64_object_p in | |
856 | bfd/elfxx-ia64.c. */ | |
857 | if (section->flags & SEC_LINKER_CREATED) | |
858 | return; | |
859 | ||
860 | /* PR 10413: Skip sections that we are ignoring. */ | |
861 | if (! process_section_p (section)) | |
862 | return; | |
863 | ||
864 | printf ("%3d %-*s %08lx ", section->index, longest_section_name, | |
865 | sanitize_string (bfd_section_name (section)), | |
866 | (unsigned long) bfd_section_size (section) / opb); | |
867 | bfd_printf_vma (abfd, bfd_section_vma (section)); | |
868 | printf (" "); | |
869 | bfd_printf_vma (abfd, section->lma); | |
870 | printf (" %08lx 2**%u", (unsigned long) section->filepos, | |
871 | bfd_section_alignment (section)); | |
872 | if (! wide_output) | |
873 | printf ("\n "); | |
874 | printf (" "); | |
875 | ||
876 | #define PF(x, y) \ | |
877 | if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; } | |
878 | ||
879 | PF (SEC_HAS_CONTENTS, "CONTENTS"); | |
880 | PF (SEC_ALLOC, "ALLOC"); | |
881 | PF (SEC_CONSTRUCTOR, "CONSTRUCTOR"); | |
882 | PF (SEC_LOAD, "LOAD"); | |
883 | PF (SEC_RELOC, "RELOC"); | |
884 | PF (SEC_READONLY, "READONLY"); | |
885 | PF (SEC_CODE, "CODE"); | |
886 | PF (SEC_DATA, "DATA"); | |
887 | PF (SEC_ROM, "ROM"); | |
888 | PF (SEC_DEBUGGING, "DEBUGGING"); | |
889 | PF (SEC_NEVER_LOAD, "NEVER_LOAD"); | |
890 | PF (SEC_EXCLUDE, "EXCLUDE"); | |
891 | PF (SEC_SORT_ENTRIES, "SORT_ENTRIES"); | |
892 | if (bfd_get_arch (abfd) == bfd_arch_tic54x) | |
893 | { | |
894 | PF (SEC_TIC54X_BLOCK, "BLOCK"); | |
895 | PF (SEC_TIC54X_CLINK, "CLINK"); | |
896 | } | |
897 | PF (SEC_SMALL_DATA, "SMALL_DATA"); | |
898 | if (bfd_get_flavour (abfd) == bfd_target_coff_flavour) | |
899 | { | |
900 | PF (SEC_COFF_SHARED, "SHARED"); | |
901 | PF (SEC_COFF_NOREAD, "NOREAD"); | |
902 | } | |
903 | else if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
904 | { | |
905 | PF (SEC_ELF_OCTETS, "OCTETS"); | |
906 | PF (SEC_ELF_PURECODE, "PURECODE"); | |
907 | } | |
908 | PF (SEC_THREAD_LOCAL, "THREAD_LOCAL"); | |
909 | PF (SEC_GROUP, "GROUP"); | |
910 | if (bfd_get_arch (abfd) == bfd_arch_mep) | |
911 | { | |
912 | PF (SEC_MEP_VLIW, "VLIW"); | |
913 | } | |
914 | ||
915 | if ((section->flags & SEC_LINK_ONCE) != 0) | |
916 | { | |
917 | const char *ls; | |
918 | struct coff_comdat_info *comdat; | |
919 | ||
920 | switch (section->flags & SEC_LINK_DUPLICATES) | |
921 | { | |
922 | default: | |
923 | abort (); | |
924 | case SEC_LINK_DUPLICATES_DISCARD: | |
925 | ls = "LINK_ONCE_DISCARD"; | |
926 | break; | |
927 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
928 | ls = "LINK_ONCE_ONE_ONLY"; | |
929 | break; | |
930 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
931 | ls = "LINK_ONCE_SAME_SIZE"; | |
932 | break; | |
933 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
934 | ls = "LINK_ONCE_SAME_CONTENTS"; | |
935 | break; | |
936 | } | |
937 | printf ("%s%s", comma, ls); | |
938 | ||
939 | comdat = bfd_coff_get_comdat_section (abfd, section); | |
940 | if (comdat != NULL) | |
941 | printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol); | |
942 | ||
943 | comma = ", "; | |
944 | } | |
945 | ||
946 | if (bfd_is_section_compressed (abfd, section)) | |
947 | printf ("%sCOMPRESSED", comma); | |
948 | ||
949 | printf ("\n"); | |
950 | #undef PF | |
951 | } | |
952 | ||
953 | /* Called on each SECTION in ABFD, update the int variable pointed to by | |
954 | DATA which contains the string length of the longest section name. */ | |
955 | ||
956 | static void | |
957 | find_longest_section_name (bfd *abfd ATTRIBUTE_UNUSED, | |
958 | asection *section, void *data) | |
959 | { | |
960 | int *longest_so_far = (int *) data; | |
961 | const char *name; | |
962 | int len; | |
963 | ||
964 | /* Ignore linker created section. */ | |
965 | if (section->flags & SEC_LINKER_CREATED) | |
966 | return; | |
967 | ||
968 | /* Skip sections that we are ignoring. */ | |
969 | if (! process_section_p (section)) | |
970 | return; | |
971 | ||
972 | name = bfd_section_name (section); | |
973 | len = (int) strlen (name); | |
974 | if (len > *longest_so_far) | |
975 | *longest_so_far = len; | |
976 | } | |
977 | ||
978 | static void | |
979 | dump_headers (bfd *abfd) | |
980 | { | |
981 | /* The default width of 13 is just an arbitrary choice. */ | |
982 | int max_section_name_length = 13; | |
983 | int bfd_vma_width; | |
984 | ||
985 | #ifndef BFD64 | |
986 | bfd_vma_width = 10; | |
987 | #else | |
988 | /* With BFD64, non-ELF returns -1 and wants always 64 bit addresses. */ | |
989 | if (bfd_get_arch_size (abfd) == 32) | |
990 | bfd_vma_width = 10; | |
991 | else | |
992 | bfd_vma_width = 18; | |
993 | #endif | |
994 | ||
995 | printf (_("Sections:\n")); | |
996 | ||
997 | if (wide_output) | |
998 | bfd_map_over_sections (abfd, find_longest_section_name, | |
999 | &max_section_name_length); | |
1000 | ||
1001 | printf (_("Idx %-*s Size %-*s%-*sFile off Algn"), | |
1002 | max_section_name_length, "Name", | |
1003 | bfd_vma_width, "VMA", | |
1004 | bfd_vma_width, "LMA"); | |
1005 | ||
1006 | if (wide_output) | |
1007 | printf (_(" Flags")); | |
1008 | printf ("\n"); | |
1009 | ||
1010 | bfd_map_over_sections (abfd, dump_section_header, | |
1011 | &max_section_name_length); | |
1012 | } | |
1013 | \f | |
1014 | static asymbol ** | |
1015 | slurp_symtab (bfd *abfd) | |
1016 | { | |
1017 | symcount = 0; | |
1018 | if (!(bfd_get_file_flags (abfd) & HAS_SYMS)) | |
1019 | return NULL; | |
1020 | ||
1021 | long storage = bfd_get_symtab_upper_bound (abfd); | |
1022 | if (storage < 0) | |
1023 | { | |
1024 | non_fatal (_("failed to read symbol table from: %s"), | |
1025 | bfd_get_filename (abfd)); | |
1026 | my_bfd_nonfatal (_("error message was")); | |
1027 | } | |
1028 | ||
1029 | if (storage <= 0) | |
1030 | return NULL; | |
1031 | ||
1032 | asymbol **sy = (asymbol **) xmalloc (storage); | |
1033 | symcount = bfd_canonicalize_symtab (abfd, sy); | |
1034 | if (symcount < 0) | |
1035 | { | |
1036 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
1037 | free (sy); | |
1038 | sy = NULL; | |
1039 | symcount = 0; | |
1040 | } | |
1041 | return sy; | |
1042 | } | |
1043 | ||
1044 | /* Read in the dynamic symbols. */ | |
1045 | ||
1046 | static asymbol ** | |
1047 | slurp_dynamic_symtab (bfd *abfd) | |
1048 | { | |
1049 | dynsymcount = 0; | |
1050 | long storage = bfd_get_dynamic_symtab_upper_bound (abfd); | |
1051 | if (storage < 0) | |
1052 | { | |
1053 | if (!(bfd_get_file_flags (abfd) & DYNAMIC)) | |
1054 | { | |
1055 | non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd)); | |
1056 | exit_status = 1; | |
1057 | return NULL; | |
1058 | } | |
1059 | ||
1060 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
1061 | } | |
1062 | ||
1063 | if (storage <= 0) | |
1064 | return NULL; | |
1065 | ||
1066 | asymbol **sy = (asymbol **) xmalloc (storage); | |
1067 | dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy); | |
1068 | if (dynsymcount < 0) | |
1069 | { | |
1070 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
1071 | free (sy); | |
1072 | sy = NULL; | |
1073 | dynsymcount = 0; | |
1074 | } | |
1075 | return sy; | |
1076 | } | |
1077 | ||
1078 | /* Some symbol names are significant and should be kept in the | |
1079 | table of sorted symbol names, even if they are marked as | |
1080 | debugging/section symbols. */ | |
1081 | ||
1082 | static bool | |
1083 | is_significant_symbol_name (const char * name) | |
1084 | { | |
1085 | return startswith (name, ".plt") || startswith (name, ".got"); | |
1086 | } | |
1087 | ||
1088 | /* Filter out (in place) symbols that are useless for disassembly. | |
1089 | COUNT is the number of elements in SYMBOLS. | |
1090 | Return the number of useful symbols. */ | |
1091 | ||
1092 | static long | |
1093 | remove_useless_symbols (asymbol **symbols, long count) | |
1094 | { | |
1095 | asymbol **in_ptr = symbols, **out_ptr = symbols; | |
1096 | ||
1097 | while (--count >= 0) | |
1098 | { | |
1099 | asymbol *sym = *in_ptr++; | |
1100 | ||
1101 | if (sym->name == NULL || sym->name[0] == '\0') | |
1102 | continue; | |
1103 | if ((sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM)) | |
1104 | && ! is_significant_symbol_name (sym->name)) | |
1105 | continue; | |
1106 | if (bfd_is_und_section (sym->section) | |
1107 | || bfd_is_com_section (sym->section)) | |
1108 | continue; | |
1109 | ||
1110 | *out_ptr++ = sym; | |
1111 | } | |
1112 | return out_ptr - symbols; | |
1113 | } | |
1114 | ||
1115 | /* Return true iff SEC1 and SEC2 are the same section. | |
1116 | This would just be a simple pointer comparison except that one of | |
1117 | the sections might be from a separate debug info file. */ | |
1118 | ||
1119 | static bool | |
1120 | is_same_section (const asection *sec1, const asection *sec2) | |
1121 | { | |
1122 | if (sec1 == sec2) | |
1123 | return true; | |
1124 | if (sec1->owner == sec2->owner | |
1125 | || sec1->owner == NULL | |
1126 | || sec2->owner == NULL) | |
1127 | return false; | |
1128 | /* OK, so we have one section in a debug info file. (Or they both | |
1129 | are, but the way this function is currently used sec1 will be in | |
1130 | a normal object.) Compare names, vma and size. This ought to | |
1131 | cover all the usual cases. */ | |
1132 | return (sec1->vma == sec2->vma | |
1133 | && sec1->size == sec2->size | |
1134 | && strcmp (sec1->name, sec2->name) == 0); | |
1135 | } | |
1136 | ||
1137 | static const asection *compare_section; | |
1138 | ||
1139 | /* Sort symbols into value order. */ | |
1140 | ||
1141 | static int | |
1142 | compare_symbols (const void *ap, const void *bp) | |
1143 | { | |
1144 | const asymbol *a = * (const asymbol **) ap; | |
1145 | const asymbol *b = * (const asymbol **) bp; | |
1146 | const char *an; | |
1147 | const char *bn; | |
1148 | size_t anl; | |
1149 | size_t bnl; | |
1150 | bool as, af, bs, bf; | |
1151 | flagword aflags; | |
1152 | flagword bflags; | |
1153 | ||
1154 | if (bfd_asymbol_value (a) > bfd_asymbol_value (b)) | |
1155 | return 1; | |
1156 | else if (bfd_asymbol_value (a) < bfd_asymbol_value (b)) | |
1157 | return -1; | |
1158 | ||
1159 | /* Prefer symbols from the section currently being disassembled. | |
1160 | Don't sort symbols from other sections by section, since there | |
1161 | isn't much reason to prefer one section over another otherwise. */ | |
1162 | as = is_same_section (compare_section, a->section); | |
1163 | bs = is_same_section (compare_section, b->section); | |
1164 | if (as && !bs) | |
1165 | return -1; | |
1166 | if (!as && bs) | |
1167 | return 1; | |
1168 | ||
1169 | an = bfd_asymbol_name (a); | |
1170 | bn = bfd_asymbol_name (b); | |
1171 | anl = strlen (an); | |
1172 | bnl = strlen (bn); | |
1173 | ||
1174 | /* The symbols gnu_compiled and gcc2_compiled convey no real | |
1175 | information, so put them after other symbols with the same value. */ | |
1176 | af = (strstr (an, "gnu_compiled") != NULL | |
1177 | || strstr (an, "gcc2_compiled") != NULL); | |
1178 | bf = (strstr (bn, "gnu_compiled") != NULL | |
1179 | || strstr (bn, "gcc2_compiled") != NULL); | |
1180 | ||
1181 | if (af && ! bf) | |
1182 | return 1; | |
1183 | if (! af && bf) | |
1184 | return -1; | |
1185 | ||
1186 | /* We use a heuristic for the file name, to try to sort it after | |
1187 | more useful symbols. It may not work on non Unix systems, but it | |
1188 | doesn't really matter; the only difference is precisely which | |
1189 | symbol names get printed. */ | |
1190 | ||
1191 | #define file_symbol(s, sn, snl) \ | |
1192 | (((s)->flags & BSF_FILE) != 0 \ | |
1193 | || ((snl) > 2 \ | |
1194 | && (sn)[(snl) - 2] == '.' \ | |
1195 | && ((sn)[(snl) - 1] == 'o' \ | |
1196 | || (sn)[(snl) - 1] == 'a'))) | |
1197 | ||
1198 | af = file_symbol (a, an, anl); | |
1199 | bf = file_symbol (b, bn, bnl); | |
1200 | ||
1201 | if (af && ! bf) | |
1202 | return 1; | |
1203 | if (! af && bf) | |
1204 | return -1; | |
1205 | ||
1206 | /* Sort function and object symbols before global symbols before | |
1207 | local symbols before section symbols before debugging symbols. */ | |
1208 | ||
1209 | aflags = a->flags; | |
1210 | bflags = b->flags; | |
1211 | ||
1212 | if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING)) | |
1213 | { | |
1214 | if ((aflags & BSF_DEBUGGING) != 0) | |
1215 | return 1; | |
1216 | else | |
1217 | return -1; | |
1218 | } | |
1219 | if ((aflags & BSF_SECTION_SYM) != (bflags & BSF_SECTION_SYM)) | |
1220 | { | |
1221 | if ((aflags & BSF_SECTION_SYM) != 0) | |
1222 | return 1; | |
1223 | else | |
1224 | return -1; | |
1225 | } | |
1226 | if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION)) | |
1227 | { | |
1228 | if ((aflags & BSF_FUNCTION) != 0) | |
1229 | return -1; | |
1230 | else | |
1231 | return 1; | |
1232 | } | |
1233 | if ((aflags & BSF_OBJECT) != (bflags & BSF_OBJECT)) | |
1234 | { | |
1235 | if ((aflags & BSF_OBJECT) != 0) | |
1236 | return -1; | |
1237 | else | |
1238 | return 1; | |
1239 | } | |
1240 | if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL)) | |
1241 | { | |
1242 | if ((aflags & BSF_LOCAL) != 0) | |
1243 | return 1; | |
1244 | else | |
1245 | return -1; | |
1246 | } | |
1247 | if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL)) | |
1248 | { | |
1249 | if ((aflags & BSF_GLOBAL) != 0) | |
1250 | return -1; | |
1251 | else | |
1252 | return 1; | |
1253 | } | |
1254 | ||
1255 | /* Sort larger size ELF symbols before smaller. See PR20337. */ | |
1256 | bfd_vma asz = 0; | |
1257 | if ((a->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0 | |
1258 | && bfd_get_flavour (bfd_asymbol_bfd (a)) == bfd_target_elf_flavour) | |
1259 | asz = ((elf_symbol_type *) a)->internal_elf_sym.st_size; | |
1260 | bfd_vma bsz = 0; | |
1261 | if ((b->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0 | |
1262 | && bfd_get_flavour (bfd_asymbol_bfd (b)) == bfd_target_elf_flavour) | |
1263 | bsz = ((elf_symbol_type *) b)->internal_elf_sym.st_size; | |
1264 | if (asz != bsz) | |
1265 | return asz > bsz ? -1 : 1; | |
1266 | ||
1267 | /* Symbols that start with '.' might be section names, so sort them | |
1268 | after symbols that don't start with '.'. */ | |
1269 | if (an[0] == '.' && bn[0] != '.') | |
1270 | return 1; | |
1271 | if (an[0] != '.' && bn[0] == '.') | |
1272 | return -1; | |
1273 | ||
1274 | /* Finally, if we can't distinguish them in any other way, try to | |
1275 | get consistent results by sorting the symbols by name. */ | |
1276 | return strcmp (an, bn); | |
1277 | } | |
1278 | ||
1279 | /* Sort relocs into address order. */ | |
1280 | ||
1281 | static int | |
1282 | compare_relocs (const void *ap, const void *bp) | |
1283 | { | |
1284 | const arelent *a = * (const arelent **) ap; | |
1285 | const arelent *b = * (const arelent **) bp; | |
1286 | ||
1287 | if (a->address > b->address) | |
1288 | return 1; | |
1289 | else if (a->address < b->address) | |
1290 | return -1; | |
1291 | ||
1292 | /* So that associated relocations tied to the same address show up | |
1293 | in the correct order, we don't do any further sorting. */ | |
1294 | if (a > b) | |
1295 | return 1; | |
1296 | else if (a < b) | |
1297 | return -1; | |
1298 | else | |
1299 | return 0; | |
1300 | } | |
1301 | ||
1302 | /* Print an address (VMA) to the output stream in INFO. | |
1303 | If SKIP_ZEROES is TRUE, omit leading zeroes. */ | |
1304 | ||
1305 | static void | |
1306 | objdump_print_value (bfd_vma vma, struct disassemble_info *inf, | |
1307 | bool skip_zeroes) | |
1308 | { | |
1309 | char buf[30]; | |
1310 | char *p; | |
1311 | struct objdump_disasm_info *aux; | |
1312 | ||
1313 | aux = (struct objdump_disasm_info *) inf->application_data; | |
1314 | bfd_sprintf_vma (aux->abfd, buf, vma); | |
1315 | if (! skip_zeroes) | |
1316 | p = buf; | |
1317 | else | |
1318 | { | |
1319 | for (p = buf; *p == '0'; ++p) | |
1320 | ; | |
1321 | if (*p == '\0') | |
1322 | --p; | |
1323 | } | |
1324 | (*inf->fprintf_styled_func) (inf->stream, dis_style_address, "%s", p); | |
1325 | } | |
1326 | ||
1327 | /* Print the name of a symbol. */ | |
1328 | ||
1329 | static void | |
1330 | objdump_print_symname (bfd *abfd, struct disassemble_info *inf, | |
1331 | asymbol *sym) | |
1332 | { | |
1333 | char *alloc; | |
1334 | const char *name, *version_string = NULL; | |
1335 | bool hidden = false; | |
1336 | ||
1337 | alloc = NULL; | |
1338 | name = bfd_asymbol_name (sym); | |
1339 | if (do_demangle && name[0] != '\0') | |
1340 | { | |
1341 | /* Demangle the name. */ | |
1342 | alloc = bfd_demangle (abfd, name, demangle_flags); | |
1343 | if (alloc != NULL) | |
1344 | name = alloc; | |
1345 | } | |
1346 | ||
1347 | if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0) | |
1348 | version_string = bfd_get_symbol_version_string (abfd, sym, true, | |
1349 | &hidden); | |
1350 | ||
1351 | if (bfd_is_und_section (bfd_asymbol_section (sym))) | |
1352 | hidden = true; | |
1353 | ||
1354 | name = sanitize_string (name); | |
1355 | ||
1356 | if (inf != NULL) | |
1357 | { | |
1358 | (*inf->fprintf_styled_func) (inf->stream, dis_style_symbol, "%s", name); | |
1359 | if (version_string && *version_string != '\0') | |
1360 | (*inf->fprintf_styled_func) (inf->stream, dis_style_symbol, | |
1361 | hidden ? "@%s" : "@@%s", | |
1362 | version_string); | |
1363 | } | |
1364 | else | |
1365 | { | |
1366 | printf ("%s", name); | |
1367 | if (version_string && *version_string != '\0') | |
1368 | printf (hidden ? "@%s" : "@@%s", version_string); | |
1369 | } | |
1370 | ||
1371 | if (alloc != NULL) | |
1372 | free (alloc); | |
1373 | } | |
1374 | ||
1375 | static inline bool | |
1376 | sym_ok (bool want_section, | |
1377 | bfd *abfd ATTRIBUTE_UNUSED, | |
1378 | long place, | |
1379 | asection *sec, | |
1380 | struct disassemble_info *inf) | |
1381 | { | |
1382 | if (want_section && !is_same_section (sec, sorted_syms[place]->section)) | |
1383 | return false; | |
1384 | ||
1385 | return inf->symbol_is_valid (sorted_syms[place], inf); | |
1386 | } | |
1387 | ||
1388 | /* Locate a symbol given a bfd and a section (from INFO->application_data), | |
1389 | and a VMA. If INFO->application_data->require_sec is TRUE, then always | |
1390 | require the symbol to be in the section. Returns NULL if there is no | |
1391 | suitable symbol. If PLACE is not NULL, then *PLACE is set to the index | |
1392 | of the symbol in sorted_syms. */ | |
1393 | ||
1394 | static asymbol * | |
1395 | find_symbol_for_address (bfd_vma vma, | |
1396 | struct disassemble_info *inf, | |
1397 | long *place) | |
1398 | { | |
1399 | /* @@ Would it speed things up to cache the last two symbols returned, | |
1400 | and maybe their address ranges? For many processors, only one memory | |
1401 | operand can be present at a time, so the 2-entry cache wouldn't be | |
1402 | constantly churned by code doing heavy memory accesses. */ | |
1403 | ||
1404 | /* Indices in `sorted_syms'. */ | |
1405 | long min = 0; | |
1406 | long max_count = sorted_symcount; | |
1407 | long thisplace; | |
1408 | struct objdump_disasm_info *aux; | |
1409 | bfd *abfd; | |
1410 | asection *sec; | |
1411 | unsigned int opb; | |
1412 | bool want_section; | |
1413 | long rel_count; | |
1414 | ||
1415 | if (sorted_symcount < 1) | |
1416 | return NULL; | |
1417 | ||
1418 | aux = (struct objdump_disasm_info *) inf->application_data; | |
1419 | abfd = aux->abfd; | |
1420 | sec = inf->section; | |
1421 | opb = inf->octets_per_byte; | |
1422 | ||
1423 | /* Perform a binary search looking for the closest symbol to the | |
1424 | required value. We are searching the range (min, max_count]. */ | |
1425 | while (min + 1 < max_count) | |
1426 | { | |
1427 | asymbol *sym; | |
1428 | ||
1429 | thisplace = (max_count + min) / 2; | |
1430 | sym = sorted_syms[thisplace]; | |
1431 | ||
1432 | if (bfd_asymbol_value (sym) > vma) | |
1433 | max_count = thisplace; | |
1434 | else if (bfd_asymbol_value (sym) < vma) | |
1435 | min = thisplace; | |
1436 | else | |
1437 | { | |
1438 | min = thisplace; | |
1439 | break; | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | /* The symbol we want is now in min, the low end of the range we | |
1444 | were searching. If there are several symbols with the same | |
1445 | value, we want the first one. */ | |
1446 | thisplace = min; | |
1447 | while (thisplace > 0 | |
1448 | && (bfd_asymbol_value (sorted_syms[thisplace]) | |
1449 | == bfd_asymbol_value (sorted_syms[thisplace - 1]))) | |
1450 | --thisplace; | |
1451 | ||
1452 | /* Prefer a symbol in the current section if we have multple symbols | |
1453 | with the same value, as can occur with overlays or zero size | |
1454 | sections. */ | |
1455 | min = thisplace; | |
1456 | while (min < max_count | |
1457 | && (bfd_asymbol_value (sorted_syms[min]) | |
1458 | == bfd_asymbol_value (sorted_syms[thisplace]))) | |
1459 | { | |
1460 | if (sym_ok (true, abfd, min, sec, inf)) | |
1461 | { | |
1462 | thisplace = min; | |
1463 | ||
1464 | if (place != NULL) | |
1465 | *place = thisplace; | |
1466 | ||
1467 | return sorted_syms[thisplace]; | |
1468 | } | |
1469 | ++min; | |
1470 | } | |
1471 | ||
1472 | /* If the file is relocatable, and the symbol could be from this | |
1473 | section, prefer a symbol from this section over symbols from | |
1474 | others, even if the other symbol's value might be closer. | |
1475 | ||
1476 | Note that this may be wrong for some symbol references if the | |
1477 | sections have overlapping memory ranges, but in that case there's | |
1478 | no way to tell what's desired without looking at the relocation | |
1479 | table. | |
1480 | ||
1481 | Also give the target a chance to reject symbols. */ | |
1482 | want_section = (aux->require_sec | |
1483 | || ((abfd->flags & HAS_RELOC) != 0 | |
1484 | && vma >= bfd_section_vma (sec) | |
1485 | && vma < (bfd_section_vma (sec) | |
1486 | + bfd_section_size (sec) / opb))); | |
1487 | ||
1488 | if (! sym_ok (want_section, abfd, thisplace, sec, inf)) | |
1489 | { | |
1490 | long i; | |
1491 | long newplace = sorted_symcount; | |
1492 | ||
1493 | for (i = min - 1; i >= 0; i--) | |
1494 | { | |
1495 | if (sym_ok (want_section, abfd, i, sec, inf)) | |
1496 | { | |
1497 | if (newplace == sorted_symcount) | |
1498 | newplace = i; | |
1499 | ||
1500 | if (bfd_asymbol_value (sorted_syms[i]) | |
1501 | != bfd_asymbol_value (sorted_syms[newplace])) | |
1502 | break; | |
1503 | ||
1504 | /* Remember this symbol and keep searching until we reach | |
1505 | an earlier address. */ | |
1506 | newplace = i; | |
1507 | } | |
1508 | } | |
1509 | ||
1510 | if (newplace != sorted_symcount) | |
1511 | thisplace = newplace; | |
1512 | else | |
1513 | { | |
1514 | /* We didn't find a good symbol with a smaller value. | |
1515 | Look for one with a larger value. */ | |
1516 | for (i = thisplace + 1; i < sorted_symcount; i++) | |
1517 | { | |
1518 | if (sym_ok (want_section, abfd, i, sec, inf)) | |
1519 | { | |
1520 | thisplace = i; | |
1521 | break; | |
1522 | } | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | if (! sym_ok (want_section, abfd, thisplace, sec, inf)) | |
1527 | /* There is no suitable symbol. */ | |
1528 | return NULL; | |
1529 | } | |
1530 | ||
1531 | /* If we have not found an exact match for the specified address | |
1532 | and we have dynamic relocations available, then we can produce | |
1533 | a better result by matching a relocation to the address and | |
1534 | using the symbol associated with that relocation. */ | |
1535 | rel_count = inf->dynrelcount; | |
1536 | if (!want_section | |
1537 | && sorted_syms[thisplace]->value != vma | |
1538 | && rel_count > 0 | |
1539 | && inf->dynrelbuf != NULL | |
1540 | && inf->dynrelbuf[0]->address <= vma | |
1541 | && inf->dynrelbuf[rel_count - 1]->address >= vma | |
1542 | /* If we have matched a synthetic symbol, then stick with that. */ | |
1543 | && (sorted_syms[thisplace]->flags & BSF_SYNTHETIC) == 0) | |
1544 | { | |
1545 | arelent ** rel_low; | |
1546 | arelent ** rel_high; | |
1547 | ||
1548 | rel_low = inf->dynrelbuf; | |
1549 | rel_high = rel_low + rel_count - 1; | |
1550 | while (rel_low <= rel_high) | |
1551 | { | |
1552 | arelent **rel_mid = &rel_low[(rel_high - rel_low) / 2]; | |
1553 | arelent * rel = *rel_mid; | |
1554 | ||
1555 | if (rel->address == vma) | |
1556 | { | |
1557 | /* Absolute relocations do not provide a more helpful | |
1558 | symbolic address. Find a non-absolute relocation | |
1559 | with the same address. */ | |
1560 | arelent **rel_vma = rel_mid; | |
1561 | for (rel_mid--; | |
1562 | rel_mid >= rel_low && rel_mid[0]->address == vma; | |
1563 | rel_mid--) | |
1564 | rel_vma = rel_mid; | |
1565 | ||
1566 | for (; rel_vma <= rel_high && rel_vma[0]->address == vma; | |
1567 | rel_vma++) | |
1568 | { | |
1569 | rel = *rel_vma; | |
1570 | if (rel->sym_ptr_ptr != NULL | |
1571 | && ! bfd_is_abs_section ((* rel->sym_ptr_ptr)->section)) | |
1572 | { | |
1573 | if (place != NULL) | |
1574 | * place = thisplace; | |
1575 | return * rel->sym_ptr_ptr; | |
1576 | } | |
1577 | } | |
1578 | break; | |
1579 | } | |
1580 | ||
1581 | if (vma < rel->address) | |
1582 | rel_high = rel_mid; | |
1583 | else if (vma >= rel_mid[1]->address) | |
1584 | rel_low = rel_mid + 1; | |
1585 | else | |
1586 | break; | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | if (place != NULL) | |
1591 | *place = thisplace; | |
1592 | ||
1593 | return sorted_syms[thisplace]; | |
1594 | } | |
1595 | ||
1596 | /* Print an address and the offset to the nearest symbol. */ | |
1597 | ||
1598 | static void | |
1599 | objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym, | |
1600 | bfd_vma vma, struct disassemble_info *inf, | |
1601 | bool skip_zeroes) | |
1602 | { | |
1603 | if (!no_addresses) | |
1604 | { | |
1605 | objdump_print_value (vma, inf, skip_zeroes); | |
1606 | (*inf->fprintf_styled_func) (inf->stream, dis_style_text, " "); | |
1607 | } | |
1608 | ||
1609 | if (sym == NULL) | |
1610 | { | |
1611 | bfd_vma secaddr; | |
1612 | ||
1613 | (*inf->fprintf_styled_func) (inf->stream, dis_style_text,"<"); | |
1614 | (*inf->fprintf_styled_func) (inf->stream, dis_style_symbol, "%s", | |
1615 | sanitize_string (bfd_section_name (sec))); | |
1616 | secaddr = bfd_section_vma (sec); | |
1617 | if (vma < secaddr) | |
1618 | { | |
1619 | (*inf->fprintf_styled_func) (inf->stream, dis_style_immediate, | |
1620 | "-0x"); | |
1621 | objdump_print_value (secaddr - vma, inf, true); | |
1622 | } | |
1623 | else if (vma > secaddr) | |
1624 | { | |
1625 | (*inf->fprintf_styled_func) (inf->stream, dis_style_immediate, "+0x"); | |
1626 | objdump_print_value (vma - secaddr, inf, true); | |
1627 | } | |
1628 | (*inf->fprintf_styled_func) (inf->stream, dis_style_text, ">"); | |
1629 | } | |
1630 | else | |
1631 | { | |
1632 | (*inf->fprintf_styled_func) (inf->stream, dis_style_text, "<"); | |
1633 | ||
1634 | objdump_print_symname (abfd, inf, sym); | |
1635 | ||
1636 | if (bfd_asymbol_value (sym) == vma) | |
1637 | ; | |
1638 | /* Undefined symbols in an executables and dynamic objects do not have | |
1639 | a value associated with them, so it does not make sense to display | |
1640 | an offset relative to them. Normally we would not be provided with | |
1641 | this kind of symbol, but the target backend might choose to do so, | |
1642 | and the code in find_symbol_for_address might return an as yet | |
1643 | unresolved symbol associated with a dynamic reloc. */ | |
1644 | else if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC)) | |
1645 | && bfd_is_und_section (sym->section)) | |
1646 | ; | |
1647 | else if (bfd_asymbol_value (sym) > vma) | |
1648 | { | |
1649 | (*inf->fprintf_styled_func) (inf->stream, dis_style_immediate,"-0x"); | |
1650 | objdump_print_value (bfd_asymbol_value (sym) - vma, inf, true); | |
1651 | } | |
1652 | else if (vma > bfd_asymbol_value (sym)) | |
1653 | { | |
1654 | (*inf->fprintf_styled_func) (inf->stream, dis_style_immediate, "+0x"); | |
1655 | objdump_print_value (vma - bfd_asymbol_value (sym), inf, true); | |
1656 | } | |
1657 | ||
1658 | (*inf->fprintf_styled_func) (inf->stream, dis_style_text, ">"); | |
1659 | } | |
1660 | ||
1661 | if (display_file_offsets) | |
1662 | inf->fprintf_styled_func (inf->stream, dis_style_text, | |
1663 | _(" (File Offset: 0x%lx)"), | |
1664 | (long int)(sec->filepos + (vma - sec->vma))); | |
1665 | } | |
1666 | ||
1667 | /* Displays all symbols in the sorted symbol table starting at PLACE | |
1668 | which match the address VMA. Assumes that show_all_symbols == true. */ | |
1669 | ||
1670 | static void | |
1671 | display_extra_syms (long place, | |
1672 | bfd_vma vma, | |
1673 | struct disassemble_info *inf) | |
1674 | { | |
1675 | struct objdump_disasm_info *aux = (struct objdump_disasm_info *) inf->application_data; | |
1676 | ||
1677 | if (place == 0) | |
1678 | return; | |
1679 | ||
1680 | bool first = true; | |
1681 | ||
1682 | for (; place < sorted_symcount; place++) | |
1683 | { | |
1684 | asymbol *sym = sorted_syms[place]; | |
1685 | ||
1686 | if (bfd_asymbol_value (sym) != vma) | |
1687 | break; | |
1688 | ||
1689 | if (! inf->symbol_is_valid (sym, inf)) | |
1690 | continue; | |
1691 | ||
1692 | if (first && ! do_wide) | |
1693 | inf->fprintf_styled_func (inf->stream, dis_style_immediate, ",\n\t<"); | |
1694 | else | |
1695 | inf->fprintf_styled_func (inf->stream, dis_style_immediate, ", <"); | |
1696 | ||
1697 | objdump_print_symname (aux->abfd, inf, sym); | |
1698 | inf->fprintf_styled_func (inf->stream, dis_style_immediate, ">"); | |
1699 | first = false; | |
1700 | } | |
1701 | } | |
1702 | ||
1703 | /* Print an address (VMA), symbolically if possible. | |
1704 | If SKIP_ZEROES is TRUE, don't output leading zeroes. */ | |
1705 | ||
1706 | static void | |
1707 | objdump_print_addr (bfd_vma vma, | |
1708 | struct disassemble_info *inf, | |
1709 | bool skip_zeroes) | |
1710 | { | |
1711 | struct objdump_disasm_info *aux; | |
1712 | asymbol *sym = NULL; | |
1713 | bool skip_find = false; | |
1714 | long place = 0; | |
1715 | ||
1716 | aux = (struct objdump_disasm_info *) inf->application_data; | |
1717 | ||
1718 | if (sorted_symcount < 1) | |
1719 | { | |
1720 | if (!no_addresses) | |
1721 | { | |
1722 | (*inf->fprintf_styled_func) (inf->stream, dis_style_address, "0x"); | |
1723 | objdump_print_value (vma, inf, skip_zeroes); | |
1724 | } | |
1725 | ||
1726 | if (display_file_offsets) | |
1727 | inf->fprintf_styled_func (inf->stream, dis_style_text, | |
1728 | _(" (File Offset: 0x%lx)"), | |
1729 | (long int) (inf->section->filepos | |
1730 | + (vma - inf->section->vma))); | |
1731 | return; | |
1732 | } | |
1733 | ||
1734 | if (aux->reloc != NULL | |
1735 | && aux->reloc->sym_ptr_ptr != NULL | |
1736 | && * aux->reloc->sym_ptr_ptr != NULL) | |
1737 | { | |
1738 | sym = * aux->reloc->sym_ptr_ptr; | |
1739 | ||
1740 | /* Adjust the vma to the reloc. */ | |
1741 | vma += bfd_asymbol_value (sym); | |
1742 | ||
1743 | if (bfd_is_und_section (bfd_asymbol_section (sym))) | |
1744 | skip_find = true; | |
1745 | } | |
1746 | ||
1747 | if (!skip_find) | |
1748 | sym = find_symbol_for_address (vma, inf, &place); | |
1749 | ||
1750 | objdump_print_addr_with_sym (aux->abfd, inf->section, sym, vma, inf, | |
1751 | skip_zeroes); | |
1752 | ||
1753 | /* If requested, display any extra symbols at this address. */ | |
1754 | if (sym == NULL || ! show_all_symbols) | |
1755 | return; | |
1756 | ||
1757 | if (place) | |
1758 | display_extra_syms (place + 1, vma, inf); | |
1759 | ||
1760 | /* If we found an absolute symbol in the reloc (ie: "*ABS*+0x....") | |
1761 | and there is a valid symbol at the address contained in the absolute symbol | |
1762 | then display any extra symbols that match this address. This helps | |
1763 | particularly with relocations for PLT entries. */ | |
1764 | if (startswith (sym->name, BFD_ABS_SECTION_NAME "+")) | |
1765 | { | |
1766 | bfd_vma addr = strtoul (sym->name + strlen (BFD_ABS_SECTION_NAME "+"), NULL, 0); | |
1767 | ||
1768 | if (addr && addr != vma) | |
1769 | { | |
1770 | sym = find_symbol_for_address (addr, inf, &place); | |
1771 | ||
1772 | if (sym) | |
1773 | display_extra_syms (place, addr, inf); | |
1774 | } | |
1775 | } | |
1776 | } | |
1777 | ||
1778 | /* Print VMA to INFO. This function is passed to the disassembler | |
1779 | routine. */ | |
1780 | ||
1781 | static void | |
1782 | objdump_print_address (bfd_vma vma, struct disassemble_info *inf) | |
1783 | { | |
1784 | objdump_print_addr (vma, inf, ! prefix_addresses); | |
1785 | } | |
1786 | ||
1787 | /* Determine if the given address has a symbol associated with it. */ | |
1788 | ||
1789 | static asymbol * | |
1790 | objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * inf) | |
1791 | { | |
1792 | asymbol * sym; | |
1793 | ||
1794 | sym = find_symbol_for_address (vma, inf, NULL); | |
1795 | if (sym != NULL && bfd_asymbol_value (sym) == vma) | |
1796 | return sym; | |
1797 | ||
1798 | return NULL; | |
1799 | } | |
1800 | ||
1801 | /* Hold the last function name and the last line number we displayed | |
1802 | in a disassembly. */ | |
1803 | ||
1804 | static char *prev_functionname; | |
1805 | static unsigned int prev_line; | |
1806 | static unsigned int prev_discriminator; | |
1807 | ||
1808 | /* We keep a list of all files that we have seen when doing a | |
1809 | disassembly with source, so that we know how much of the file to | |
1810 | display. This can be important for inlined functions. */ | |
1811 | ||
1812 | struct print_file_list | |
1813 | { | |
1814 | struct print_file_list *next; | |
1815 | const char *filename; | |
1816 | const char *modname; | |
1817 | const char *map; | |
1818 | size_t mapsize; | |
1819 | const char **linemap; | |
1820 | unsigned maxline; | |
1821 | unsigned last_line; | |
1822 | unsigned max_printed; | |
1823 | int first; | |
1824 | }; | |
1825 | ||
1826 | static struct print_file_list *print_files; | |
1827 | ||
1828 | /* The number of preceding context lines to show when we start | |
1829 | displaying a file for the first time. */ | |
1830 | ||
1831 | #define SHOW_PRECEDING_CONTEXT_LINES (5) | |
1832 | ||
1833 | #if HAVE_LIBDEBUGINFOD | |
1834 | /* Return a hex string represention of the build-id. */ | |
1835 | ||
1836 | unsigned char * | |
1837 | get_build_id (void * data) | |
1838 | { | |
1839 | unsigned i; | |
1840 | char * build_id_str; | |
1841 | bfd * abfd = (bfd *) data; | |
1842 | const struct bfd_build_id * build_id; | |
1843 | ||
1844 | build_id = abfd->build_id; | |
1845 | if (build_id == NULL) | |
1846 | return NULL; | |
1847 | ||
1848 | build_id_str = malloc (build_id->size * 2 + 1); | |
1849 | if (build_id_str == NULL) | |
1850 | return NULL; | |
1851 | ||
1852 | for (i = 0; i < build_id->size; i++) | |
1853 | sprintf (build_id_str + (i * 2), "%02x", build_id->data[i]); | |
1854 | build_id_str[build_id->size * 2] = '\0'; | |
1855 | ||
1856 | return (unsigned char *) build_id_str; | |
1857 | } | |
1858 | ||
1859 | /* Search for a separate debug file matching ABFD's build-id. */ | |
1860 | ||
1861 | static bfd * | |
1862 | find_separate_debug (const bfd * abfd) | |
1863 | { | |
1864 | const struct bfd_build_id * build_id = abfd->build_id; | |
1865 | separate_info * i = first_separate_info; | |
1866 | ||
1867 | if (build_id == NULL || i == NULL) | |
1868 | return NULL; | |
1869 | ||
1870 | while (i != NULL) | |
1871 | { | |
1872 | const bfd * i_bfd = (bfd *) i->handle; | |
1873 | ||
1874 | if (abfd != NULL && i_bfd->build_id != NULL) | |
1875 | { | |
1876 | const unsigned char * data = i_bfd->build_id->data; | |
1877 | size_t size = i_bfd->build_id->size; | |
1878 | ||
1879 | if (size == build_id->size | |
1880 | && memcmp (data, build_id->data, size) == 0) | |
1881 | return (bfd *) i->handle; | |
1882 | } | |
1883 | ||
1884 | i = i->next; | |
1885 | } | |
1886 | ||
1887 | return NULL; | |
1888 | } | |
1889 | ||
1890 | /* Search for a separate debug file matching ABFD's .gnu_debugaltlink | |
1891 | build-id. */ | |
1892 | ||
1893 | static bfd * | |
1894 | find_alt_debug (const bfd * abfd) | |
1895 | { | |
1896 | size_t namelen; | |
1897 | size_t id_len; | |
1898 | const char * name; | |
1899 | struct dwarf_section * section; | |
1900 | const struct bfd_build_id * build_id = abfd->build_id; | |
1901 | separate_info * i = first_separate_info; | |
1902 | ||
1903 | if (i == NULL | |
1904 | || build_id == NULL | |
1905 | || !load_debug_section (gnu_debugaltlink, (void *) abfd)) | |
1906 | return NULL; | |
1907 | ||
1908 | section = &debug_displays[gnu_debugaltlink].section; | |
1909 | if (section == NULL) | |
1910 | return NULL; | |
1911 | ||
1912 | name = (const char *) section->start; | |
1913 | namelen = strnlen (name, section->size) + 1; | |
1914 | if (namelen == 1) | |
1915 | return NULL; | |
1916 | if (namelen >= section->size) | |
1917 | return NULL; | |
1918 | ||
1919 | id_len = section->size - namelen; | |
1920 | if (id_len < 0x14) | |
1921 | return NULL; | |
1922 | ||
1923 | /* Compare the .gnu_debugaltlink build-id with the build-ids of the | |
1924 | known separate_info files. */ | |
1925 | while (i != NULL) | |
1926 | { | |
1927 | const bfd * i_bfd = (bfd *) i->handle; | |
1928 | ||
1929 | if (i_bfd != NULL && i_bfd->build_id != NULL) | |
1930 | { | |
1931 | const unsigned char * data = i_bfd->build_id->data; | |
1932 | size_t size = i_bfd->build_id->size; | |
1933 | ||
1934 | if (id_len == size | |
1935 | && memcmp (section->start + namelen, data, size) == 0) | |
1936 | return (bfd *) i->handle; | |
1937 | } | |
1938 | ||
1939 | i = i->next; | |
1940 | } | |
1941 | ||
1942 | return NULL; | |
1943 | } | |
1944 | ||
1945 | #endif /* HAVE_LIBDEBUGINFOD */ | |
1946 | ||
1947 | /* Reads the contents of file FN into memory. Returns a pointer to the buffer. | |
1948 | Also returns the size of the buffer in SIZE_RETURN and a filled out | |
1949 | stat structure in FST_RETURN. Returns NULL upon failure. */ | |
1950 | ||
1951 | static const char * | |
1952 | slurp_file (const char * fn, | |
1953 | size_t * size_return, | |
1954 | struct stat * fst_return, | |
1955 | bfd * abfd ATTRIBUTE_UNUSED) | |
1956 | { | |
1957 | #ifdef HAVE_MMAP | |
1958 | int ps; | |
1959 | size_t msize; | |
1960 | #endif | |
1961 | const char *map; | |
1962 | int fd; | |
1963 | ||
1964 | /* Paranoia. */ | |
1965 | if (fn == NULL || * fn == 0 || size_return == NULL || fst_return == NULL) | |
1966 | return NULL; | |
1967 | ||
1968 | fd = open (fn, O_RDONLY | O_BINARY); | |
1969 | ||
1970 | #if HAVE_LIBDEBUGINFOD | |
1971 | if (fd < 0 && use_debuginfod && fn[0] == '/' && abfd != NULL) | |
1972 | { | |
1973 | unsigned char *build_id = get_build_id (abfd); | |
1974 | ||
1975 | if (build_id) | |
1976 | { | |
1977 | debuginfod_client *client = debuginfod_begin (); | |
1978 | ||
1979 | if (client) | |
1980 | { | |
1981 | fd = debuginfod_find_source (client, build_id, 0, fn, NULL); | |
1982 | debuginfod_end (client); | |
1983 | } | |
1984 | free (build_id); | |
1985 | } | |
1986 | } | |
1987 | #endif | |
1988 | ||
1989 | if (fd < 0) | |
1990 | return NULL; | |
1991 | ||
1992 | if (fstat (fd, fst_return) < 0) | |
1993 | { | |
1994 | close (fd); | |
1995 | return NULL; | |
1996 | } | |
1997 | ||
1998 | *size_return = fst_return->st_size; | |
1999 | ||
2000 | #ifdef HAVE_MMAP | |
2001 | ps = getpagesize (); | |
2002 | msize = (*size_return + ps - 1) & ~(ps - 1); | |
2003 | map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0); | |
2004 | if (map != (char *) -1L) | |
2005 | { | |
2006 | close (fd); | |
2007 | return map; | |
2008 | } | |
2009 | #endif | |
2010 | ||
2011 | map = (const char *) malloc (*size_return); | |
2012 | if (!map || (size_t) read (fd, (char *) map, *size_return) != *size_return) | |
2013 | { | |
2014 | free ((void *) map); | |
2015 | map = NULL; | |
2016 | } | |
2017 | close (fd); | |
2018 | return map; | |
2019 | } | |
2020 | ||
2021 | #define line_map_decrease 5 | |
2022 | ||
2023 | /* Precompute array of lines for a mapped file. */ | |
2024 | ||
2025 | static const char ** | |
2026 | index_file (const char *map, size_t size, unsigned int *maxline) | |
2027 | { | |
2028 | const char *p, *lstart, *end; | |
2029 | int chars_per_line = 45; /* First iteration will use 40. */ | |
2030 | unsigned int lineno; | |
2031 | const char **linemap = NULL; | |
2032 | unsigned long line_map_size = 0; | |
2033 | ||
2034 | lineno = 0; | |
2035 | lstart = map; | |
2036 | end = map + size; | |
2037 | ||
2038 | for (p = map; p < end; p++) | |
2039 | { | |
2040 | if (*p == '\n') | |
2041 | { | |
2042 | if (p + 1 < end && p[1] == '\r') | |
2043 | p++; | |
2044 | } | |
2045 | else if (*p == '\r') | |
2046 | { | |
2047 | if (p + 1 < end && p[1] == '\n') | |
2048 | p++; | |
2049 | } | |
2050 | else | |
2051 | continue; | |
2052 | ||
2053 | /* End of line found. */ | |
2054 | ||
2055 | if (linemap == NULL || line_map_size < lineno + 1) | |
2056 | { | |
2057 | unsigned long newsize; | |
2058 | ||
2059 | chars_per_line -= line_map_decrease; | |
2060 | if (chars_per_line <= 1) | |
2061 | chars_per_line = 1; | |
2062 | line_map_size = size / chars_per_line + 1; | |
2063 | if (line_map_size < lineno + 1) | |
2064 | line_map_size = lineno + 1; | |
2065 | newsize = line_map_size * sizeof (char *); | |
2066 | linemap = (const char **) xrealloc (linemap, newsize); | |
2067 | } | |
2068 | ||
2069 | linemap[lineno++] = lstart; | |
2070 | lstart = p + 1; | |
2071 | } | |
2072 | ||
2073 | *maxline = lineno; | |
2074 | return linemap; | |
2075 | } | |
2076 | ||
2077 | /* Tries to open MODNAME, and if successful adds a node to print_files | |
2078 | linked list and returns that node. Also fills in the stat structure | |
2079 | pointed to by FST_RETURN. Returns NULL on failure. */ | |
2080 | ||
2081 | static struct print_file_list * | |
2082 | try_print_file_open (const char * origname, | |
2083 | const char * modname, | |
2084 | struct stat * fst_return, | |
2085 | bfd * abfd) | |
2086 | { | |
2087 | struct print_file_list *p; | |
2088 | ||
2089 | p = (struct print_file_list *) xmalloc (sizeof (struct print_file_list)); | |
2090 | ||
2091 | p->map = slurp_file (modname, &p->mapsize, fst_return, abfd); | |
2092 | if (p->map == NULL) | |
2093 | { | |
2094 | free (p); | |
2095 | return NULL; | |
2096 | } | |
2097 | ||
2098 | p->linemap = index_file (p->map, p->mapsize, &p->maxline); | |
2099 | p->last_line = 0; | |
2100 | p->max_printed = 0; | |
2101 | p->filename = origname; | |
2102 | p->modname = modname; | |
2103 | p->next = print_files; | |
2104 | p->first = 1; | |
2105 | print_files = p; | |
2106 | return p; | |
2107 | } | |
2108 | ||
2109 | /* If the source file, as described in the symtab, is not found | |
2110 | try to locate it in one of the paths specified with -I | |
2111 | If found, add location to print_files linked list. */ | |
2112 | ||
2113 | static struct print_file_list * | |
2114 | update_source_path (const char *filename, bfd *abfd) | |
2115 | { | |
2116 | struct print_file_list *p; | |
2117 | const char *fname; | |
2118 | struct stat fst; | |
2119 | int i; | |
2120 | ||
2121 | p = try_print_file_open (filename, filename, &fst, abfd); | |
2122 | if (p == NULL) | |
2123 | { | |
2124 | if (include_path_count == 0) | |
2125 | return NULL; | |
2126 | ||
2127 | /* Get the name of the file. */ | |
2128 | fname = lbasename (filename); | |
2129 | ||
2130 | /* If file exists under a new path, we need to add it to the list | |
2131 | so that show_line knows about it. */ | |
2132 | for (i = 0; i < include_path_count; i++) | |
2133 | { | |
2134 | char *modname = concat (include_paths[i], "/", fname, | |
2135 | (const char *) 0); | |
2136 | ||
2137 | p = try_print_file_open (filename, modname, &fst, abfd); | |
2138 | if (p) | |
2139 | break; | |
2140 | ||
2141 | free (modname); | |
2142 | } | |
2143 | } | |
2144 | ||
2145 | if (p != NULL) | |
2146 | { | |
2147 | long mtime = bfd_get_mtime (abfd); | |
2148 | ||
2149 | if (fst.st_mtime > mtime) | |
2150 | warn (_("source file %s is more recent than object file\n"), | |
2151 | filename); | |
2152 | } | |
2153 | ||
2154 | return p; | |
2155 | } | |
2156 | ||
2157 | /* Print a source file line. */ | |
2158 | ||
2159 | static void | |
2160 | print_line (struct print_file_list *p, unsigned int linenum) | |
2161 | { | |
2162 | const char *l; | |
2163 | size_t len; | |
2164 | ||
2165 | if (linenum >= p->maxline) | |
2166 | return; | |
2167 | l = p->linemap [linenum]; | |
2168 | if (source_comment != NULL && strlen (l) > 0) | |
2169 | printf ("%s", source_comment); | |
2170 | len = strcspn (l, "\n\r"); | |
2171 | /* Test fwrite return value to quiet glibc warning. */ | |
2172 | if (len == 0 || fwrite (l, len, 1, stdout) == 1) | |
2173 | putchar ('\n'); | |
2174 | } | |
2175 | ||
2176 | /* Print a range of source code lines. */ | |
2177 | ||
2178 | static void | |
2179 | dump_lines (struct print_file_list *p, unsigned int start, unsigned int end) | |
2180 | { | |
2181 | if (p->map == NULL) | |
2182 | return; | |
2183 | if (start != 0) | |
2184 | --start; | |
2185 | while (start < end) | |
2186 | { | |
2187 | print_line (p, start); | |
2188 | start++; | |
2189 | } | |
2190 | } | |
2191 | ||
2192 | /* Show the line number, or the source line, in a disassembly | |
2193 | listing. */ | |
2194 | ||
2195 | static void | |
2196 | show_line (bfd *abfd, asection *section, bfd_vma addr_offset) | |
2197 | { | |
2198 | const char *filename; | |
2199 | const char *functionname; | |
2200 | unsigned int linenumber; | |
2201 | unsigned int discriminator; | |
2202 | bool reloc; | |
2203 | char *path = NULL; | |
2204 | ||
2205 | if (! with_line_numbers && ! with_source_code) | |
2206 | return; | |
2207 | ||
2208 | #ifdef HAVE_LIBDEBUGINFOD | |
2209 | { | |
2210 | bfd *debug_bfd; | |
2211 | const char *alt_filename = NULL; | |
2212 | ||
2213 | if (use_debuginfod) | |
2214 | { | |
2215 | bfd *alt_bfd; | |
2216 | ||
2217 | /* PR 29075: Check for separate debuginfo and .gnu_debugaltlink files. | |
2218 | They need to be passed to bfd_find_nearest_line_with_alt in case they | |
2219 | were downloaded from debuginfod. Otherwise libbfd will attempt to | |
2220 | search for them and fail to locate them. */ | |
2221 | debug_bfd = find_separate_debug (abfd); | |
2222 | if (debug_bfd == NULL) | |
2223 | debug_bfd = abfd; | |
2224 | ||
2225 | alt_bfd = find_alt_debug (debug_bfd); | |
2226 | if (alt_bfd != NULL) | |
2227 | alt_filename = bfd_get_filename (alt_bfd); | |
2228 | } | |
2229 | else | |
2230 | debug_bfd = abfd; | |
2231 | ||
2232 | bfd_set_error (bfd_error_no_error); | |
2233 | if (! bfd_find_nearest_line_with_alt (debug_bfd, alt_filename, | |
2234 | section, syms, | |
2235 | addr_offset, &filename, | |
2236 | &functionname, &linenumber, | |
2237 | &discriminator)) | |
2238 | { | |
2239 | if (bfd_get_error () == bfd_error_no_error) | |
2240 | return; | |
2241 | if (! bfd_find_nearest_line_discriminator (abfd, section, syms, | |
2242 | addr_offset, &filename, | |
2243 | &functionname, &linenumber, | |
2244 | &discriminator)) | |
2245 | return; | |
2246 | } | |
2247 | } | |
2248 | #else | |
2249 | if (! bfd_find_nearest_line_discriminator (abfd, section, syms, addr_offset, | |
2250 | &filename, &functionname, | |
2251 | &linenumber, &discriminator)) | |
2252 | return; | |
2253 | #endif | |
2254 | ||
2255 | if (filename != NULL && *filename == '\0') | |
2256 | filename = NULL; | |
2257 | if (functionname != NULL && *functionname == '\0') | |
2258 | functionname = NULL; | |
2259 | ||
2260 | if (filename | |
2261 | && IS_ABSOLUTE_PATH (filename) | |
2262 | && prefix) | |
2263 | { | |
2264 | char *path_up; | |
2265 | const char *fname = filename; | |
2266 | ||
2267 | path = xmalloc (prefix_length + 1 + strlen (filename)); | |
2268 | ||
2269 | if (prefix_length) | |
2270 | memcpy (path, prefix, prefix_length); | |
2271 | path_up = path + prefix_length; | |
2272 | ||
2273 | /* Build relocated filename, stripping off leading directories | |
2274 | from the initial filename if requested. */ | |
2275 | if (prefix_strip > 0) | |
2276 | { | |
2277 | int level = 0; | |
2278 | const char *s; | |
2279 | ||
2280 | /* Skip selected directory levels. */ | |
2281 | for (s = fname + 1; *s != '\0' && level < prefix_strip; s++) | |
2282 | if (IS_DIR_SEPARATOR (*s)) | |
2283 | { | |
2284 | fname = s; | |
2285 | level++; | |
2286 | } | |
2287 | } | |
2288 | ||
2289 | /* Update complete filename. */ | |
2290 | strcpy (path_up, fname); | |
2291 | ||
2292 | filename = path; | |
2293 | reloc = true; | |
2294 | } | |
2295 | else | |
2296 | reloc = false; | |
2297 | ||
2298 | if (with_line_numbers) | |
2299 | { | |
2300 | if (functionname != NULL | |
2301 | && (prev_functionname == NULL | |
2302 | || strcmp (functionname, prev_functionname) != 0)) | |
2303 | { | |
2304 | char *demangle_alloc = NULL; | |
2305 | if (do_demangle && functionname[0] != '\0') | |
2306 | { | |
2307 | /* Demangle the name. */ | |
2308 | demangle_alloc = bfd_demangle (abfd, functionname, | |
2309 | demangle_flags); | |
2310 | } | |
2311 | ||
2312 | /* Demangling adds trailing parens, so don't print those. */ | |
2313 | if (demangle_alloc != NULL) | |
2314 | printf ("%s:\n", sanitize_string (demangle_alloc)); | |
2315 | else | |
2316 | printf ("%s():\n", sanitize_string (functionname)); | |
2317 | ||
2318 | prev_line = -1; | |
2319 | free (demangle_alloc); | |
2320 | } | |
2321 | if (linenumber > 0 | |
2322 | && (linenumber != prev_line | |
2323 | || discriminator != prev_discriminator)) | |
2324 | { | |
2325 | if (discriminator > 0) | |
2326 | printf ("%s:%u (discriminator %u)\n", | |
2327 | filename == NULL ? "???" : sanitize_string (filename), | |
2328 | linenumber, discriminator); | |
2329 | else | |
2330 | printf ("%s:%u\n", filename == NULL | |
2331 | ? "???" : sanitize_string (filename), | |
2332 | linenumber); | |
2333 | } | |
2334 | if (unwind_inlines) | |
2335 | { | |
2336 | const char *filename2; | |
2337 | const char *functionname2; | |
2338 | unsigned line2; | |
2339 | ||
2340 | while (bfd_find_inliner_info (abfd, &filename2, &functionname2, | |
2341 | &line2)) | |
2342 | { | |
2343 | printf ("inlined by %s:%u", | |
2344 | sanitize_string (filename2), line2); | |
2345 | printf (" (%s)\n", sanitize_string (functionname2)); | |
2346 | } | |
2347 | } | |
2348 | } | |
2349 | ||
2350 | if (with_source_code | |
2351 | && filename != NULL | |
2352 | && linenumber > 0) | |
2353 | { | |
2354 | struct print_file_list **pp, *p; | |
2355 | unsigned l; | |
2356 | ||
2357 | for (pp = &print_files; *pp != NULL; pp = &(*pp)->next) | |
2358 | if (filename_cmp ((*pp)->filename, filename) == 0) | |
2359 | break; | |
2360 | p = *pp; | |
2361 | ||
2362 | if (p == NULL) | |
2363 | { | |
2364 | if (reloc) | |
2365 | filename = xstrdup (filename); | |
2366 | p = update_source_path (filename, abfd); | |
2367 | } | |
2368 | ||
2369 | if (p != NULL && linenumber != p->last_line) | |
2370 | { | |
2371 | if (file_start_context && p->first) | |
2372 | l = 1; | |
2373 | else | |
2374 | { | |
2375 | l = linenumber - SHOW_PRECEDING_CONTEXT_LINES; | |
2376 | if (l >= linenumber) | |
2377 | l = 1; | |
2378 | if (p->max_printed >= l) | |
2379 | { | |
2380 | if (p->max_printed < linenumber) | |
2381 | l = p->max_printed + 1; | |
2382 | else | |
2383 | l = linenumber; | |
2384 | } | |
2385 | } | |
2386 | dump_lines (p, l, linenumber); | |
2387 | if (p->max_printed < linenumber) | |
2388 | p->max_printed = linenumber; | |
2389 | p->last_line = linenumber; | |
2390 | p->first = 0; | |
2391 | } | |
2392 | } | |
2393 | ||
2394 | if (functionname != NULL | |
2395 | && (prev_functionname == NULL | |
2396 | || strcmp (functionname, prev_functionname) != 0)) | |
2397 | { | |
2398 | if (prev_functionname != NULL) | |
2399 | free (prev_functionname); | |
2400 | prev_functionname = (char *) xmalloc (strlen (functionname) + 1); | |
2401 | strcpy (prev_functionname, functionname); | |
2402 | } | |
2403 | ||
2404 | if (linenumber > 0 && linenumber != prev_line) | |
2405 | prev_line = linenumber; | |
2406 | ||
2407 | if (discriminator != prev_discriminator) | |
2408 | prev_discriminator = discriminator; | |
2409 | ||
2410 | if (path) | |
2411 | free (path); | |
2412 | } | |
2413 | ||
2414 | /* Pseudo FILE object for strings. */ | |
2415 | typedef struct | |
2416 | { | |
2417 | char *buffer; | |
2418 | size_t pos; | |
2419 | size_t alloc; | |
2420 | } SFILE; | |
2421 | ||
2422 | /* sprintf to a "stream". */ | |
2423 | ||
2424 | static int ATTRIBUTE_PRINTF_2 | |
2425 | objdump_sprintf (SFILE *f, const char *format, ...) | |
2426 | { | |
2427 | size_t n; | |
2428 | va_list args; | |
2429 | ||
2430 | while (1) | |
2431 | { | |
2432 | size_t space = f->alloc - f->pos; | |
2433 | ||
2434 | va_start (args, format); | |
2435 | n = vsnprintf (f->buffer + f->pos, space, format, args); | |
2436 | va_end (args); | |
2437 | ||
2438 | if (space > n) | |
2439 | break; | |
2440 | ||
2441 | f->alloc = (f->alloc + n) * 2; | |
2442 | f->buffer = (char *) xrealloc (f->buffer, f->alloc); | |
2443 | } | |
2444 | f->pos += n; | |
2445 | ||
2446 | return n; | |
2447 | } | |
2448 | ||
2449 | /* Return an integer greater than, or equal to zero, representing the color | |
2450 | for STYLE, or -1 if no color should be used. */ | |
2451 | ||
2452 | static int | |
2453 | objdump_color_for_disassembler_style (enum disassembler_style style) | |
2454 | { | |
2455 | int color = -1; | |
2456 | ||
2457 | if (style == dis_style_comment_start) | |
2458 | disassembler_in_comment = true; | |
2459 | ||
2460 | if (disassembler_color == on) | |
2461 | { | |
2462 | if (disassembler_in_comment) | |
2463 | return color; | |
2464 | ||
2465 | switch (style) | |
2466 | { | |
2467 | case dis_style_symbol: | |
2468 | color = 32; | |
2469 | break; | |
2470 | case dis_style_assembler_directive: | |
2471 | case dis_style_sub_mnemonic: | |
2472 | case dis_style_mnemonic: | |
2473 | color = 33; | |
2474 | break; | |
2475 | case dis_style_register: | |
2476 | color = 34; | |
2477 | break; | |
2478 | case dis_style_address: | |
2479 | case dis_style_address_offset: | |
2480 | case dis_style_immediate: | |
2481 | color = 35; | |
2482 | break; | |
2483 | default: | |
2484 | case dis_style_text: | |
2485 | color = -1; | |
2486 | break; | |
2487 | } | |
2488 | } | |
2489 | else if (disassembler_color == extended) | |
2490 | { | |
2491 | if (disassembler_in_comment) | |
2492 | return 250; | |
2493 | ||
2494 | switch (style) | |
2495 | { | |
2496 | case dis_style_symbol: | |
2497 | color = 40; | |
2498 | break; | |
2499 | case dis_style_assembler_directive: | |
2500 | case dis_style_sub_mnemonic: | |
2501 | case dis_style_mnemonic: | |
2502 | color = 142; | |
2503 | break; | |
2504 | case dis_style_register: | |
2505 | color = 27; | |
2506 | break; | |
2507 | case dis_style_address: | |
2508 | case dis_style_address_offset: | |
2509 | case dis_style_immediate: | |
2510 | color = 134; | |
2511 | break; | |
2512 | default: | |
2513 | case dis_style_text: | |
2514 | color = -1; | |
2515 | break; | |
2516 | } | |
2517 | } | |
2518 | else if (disassembler_color != off) | |
2519 | bfd_fatal (_("disassembly color not correctly selected")); | |
2520 | ||
2521 | return color; | |
2522 | } | |
2523 | ||
2524 | /* Like objdump_sprintf, but add in escape sequences to highlight the | |
2525 | content according to STYLE. */ | |
2526 | ||
2527 | static int ATTRIBUTE_PRINTF_3 | |
2528 | objdump_styled_sprintf (SFILE *f, enum disassembler_style style, | |
2529 | const char *format, ...) | |
2530 | { | |
2531 | size_t n; | |
2532 | va_list args; | |
2533 | int color = objdump_color_for_disassembler_style (style); | |
2534 | ||
2535 | if (color >= 0) | |
2536 | { | |
2537 | while (1) | |
2538 | { | |
2539 | size_t space = f->alloc - f->pos; | |
2540 | ||
2541 | if (disassembler_color == on) | |
2542 | n = snprintf (f->buffer + f->pos, space, "\033[%dm", color); | |
2543 | else | |
2544 | n = snprintf (f->buffer + f->pos, space, "\033[38;5;%dm", color); | |
2545 | if (space > n) | |
2546 | break; | |
2547 | ||
2548 | f->alloc = (f->alloc + n) * 2; | |
2549 | f->buffer = (char *) xrealloc (f->buffer, f->alloc); | |
2550 | } | |
2551 | f->pos += n; | |
2552 | } | |
2553 | ||
2554 | while (1) | |
2555 | { | |
2556 | size_t space = f->alloc - f->pos; | |
2557 | ||
2558 | va_start (args, format); | |
2559 | n = vsnprintf (f->buffer + f->pos, space, format, args); | |
2560 | va_end (args); | |
2561 | ||
2562 | if (space > n) | |
2563 | break; | |
2564 | ||
2565 | f->alloc = (f->alloc + n) * 2; | |
2566 | f->buffer = (char *) xrealloc (f->buffer, f->alloc); | |
2567 | } | |
2568 | f->pos += n; | |
2569 | ||
2570 | if (color >= 0) | |
2571 | { | |
2572 | while (1) | |
2573 | { | |
2574 | size_t space = f->alloc - f->pos; | |
2575 | ||
2576 | n = snprintf (f->buffer + f->pos, space, "\033[0m"); | |
2577 | ||
2578 | if (space > n) | |
2579 | break; | |
2580 | ||
2581 | f->alloc = (f->alloc + n) * 2; | |
2582 | f->buffer = (char *) xrealloc (f->buffer, f->alloc); | |
2583 | } | |
2584 | f->pos += n; | |
2585 | } | |
2586 | ||
2587 | return n; | |
2588 | } | |
2589 | ||
2590 | /* We discard the styling information here. This function is only used | |
2591 | when objdump is printing auxiliary information, the symbol headers, and | |
2592 | disassembly address, or the bytes of the disassembled instruction. We | |
2593 | don't (currently) apply styling to any of this stuff, so, for now, just | |
2594 | print the content with no additional style added. */ | |
2595 | ||
2596 | static int ATTRIBUTE_PRINTF_3 | |
2597 | fprintf_styled (FILE *f, enum disassembler_style style ATTRIBUTE_UNUSED, | |
2598 | const char *fmt, ...) | |
2599 | { | |
2600 | int res; | |
2601 | va_list ap; | |
2602 | ||
2603 | va_start (ap, fmt); | |
2604 | res = vfprintf (f, fmt, ap); | |
2605 | va_end (ap); | |
2606 | ||
2607 | return res; | |
2608 | } | |
2609 | ||
2610 | /* Code for generating (colored) diagrams of control flow start and end | |
2611 | points. */ | |
2612 | ||
2613 | /* Structure used to store the properties of a jump. */ | |
2614 | ||
2615 | struct jump_info | |
2616 | { | |
2617 | /* The next jump, or NULL if this is the last object. */ | |
2618 | struct jump_info *next; | |
2619 | /* The previous jump, or NULL if this is the first object. */ | |
2620 | struct jump_info *prev; | |
2621 | /* The start addresses of the jump. */ | |
2622 | struct | |
2623 | { | |
2624 | /* The list of start addresses. */ | |
2625 | bfd_vma *addresses; | |
2626 | /* The number of elements. */ | |
2627 | size_t count; | |
2628 | /* The maximum number of elements that fit into the array. */ | |
2629 | size_t max_count; | |
2630 | } start; | |
2631 | /* The end address of the jump. */ | |
2632 | bfd_vma end; | |
2633 | /* The drawing level of the jump. */ | |
2634 | int level; | |
2635 | }; | |
2636 | ||
2637 | /* Construct a jump object for a jump from start | |
2638 | to end with the corresponding level. */ | |
2639 | ||
2640 | static struct jump_info * | |
2641 | jump_info_new (bfd_vma start, bfd_vma end, int level) | |
2642 | { | |
2643 | struct jump_info *result = xmalloc (sizeof (struct jump_info)); | |
2644 | ||
2645 | result->next = NULL; | |
2646 | result->prev = NULL; | |
2647 | result->start.addresses = xmalloc (sizeof (bfd_vma *) * 2); | |
2648 | result->start.addresses[0] = start; | |
2649 | result->start.count = 1; | |
2650 | result->start.max_count = 2; | |
2651 | result->end = end; | |
2652 | result->level = level; | |
2653 | ||
2654 | return result; | |
2655 | } | |
2656 | ||
2657 | /* Free a jump object and return the next object | |
2658 | or NULL if this was the last one. */ | |
2659 | ||
2660 | static struct jump_info * | |
2661 | jump_info_free (struct jump_info *ji) | |
2662 | { | |
2663 | struct jump_info *result = NULL; | |
2664 | ||
2665 | if (ji) | |
2666 | { | |
2667 | result = ji->next; | |
2668 | if (ji->start.addresses) | |
2669 | free (ji->start.addresses); | |
2670 | free (ji); | |
2671 | } | |
2672 | ||
2673 | return result; | |
2674 | } | |
2675 | ||
2676 | /* Get the smallest value of all start and end addresses. */ | |
2677 | ||
2678 | static bfd_vma | |
2679 | jump_info_min_address (const struct jump_info *ji) | |
2680 | { | |
2681 | bfd_vma min_address = ji->end; | |
2682 | size_t i; | |
2683 | ||
2684 | for (i = ji->start.count; i-- > 0;) | |
2685 | if (ji->start.addresses[i] < min_address) | |
2686 | min_address = ji->start.addresses[i]; | |
2687 | return min_address; | |
2688 | } | |
2689 | ||
2690 | /* Get the largest value of all start and end addresses. */ | |
2691 | ||
2692 | static bfd_vma | |
2693 | jump_info_max_address (const struct jump_info *ji) | |
2694 | { | |
2695 | bfd_vma max_address = ji->end; | |
2696 | size_t i; | |
2697 | ||
2698 | for (i = ji->start.count; i-- > 0;) | |
2699 | if (ji->start.addresses[i] > max_address) | |
2700 | max_address = ji->start.addresses[i]; | |
2701 | return max_address; | |
2702 | } | |
2703 | ||
2704 | /* Get the target address of a jump. */ | |
2705 | ||
2706 | static bfd_vma | |
2707 | jump_info_end_address (const struct jump_info *ji) | |
2708 | { | |
2709 | return ji->end; | |
2710 | } | |
2711 | ||
2712 | /* Test if an address is one of the start addresses of a jump. */ | |
2713 | ||
2714 | static bool | |
2715 | jump_info_is_start_address (const struct jump_info *ji, bfd_vma address) | |
2716 | { | |
2717 | bool result = false; | |
2718 | size_t i; | |
2719 | ||
2720 | for (i = ji->start.count; i-- > 0;) | |
2721 | if (address == ji->start.addresses[i]) | |
2722 | { | |
2723 | result = true; | |
2724 | break; | |
2725 | } | |
2726 | ||
2727 | return result; | |
2728 | } | |
2729 | ||
2730 | /* Test if an address is the target address of a jump. */ | |
2731 | ||
2732 | static bool | |
2733 | jump_info_is_end_address (const struct jump_info *ji, bfd_vma address) | |
2734 | { | |
2735 | return (address == ji->end); | |
2736 | } | |
2737 | ||
2738 | /* Get the difference between the smallest and largest address of a jump. */ | |
2739 | ||
2740 | static bfd_vma | |
2741 | jump_info_size (const struct jump_info *ji) | |
2742 | { | |
2743 | return jump_info_max_address (ji) - jump_info_min_address (ji); | |
2744 | } | |
2745 | ||
2746 | /* Unlink a jump object from a list. */ | |
2747 | ||
2748 | static void | |
2749 | jump_info_unlink (struct jump_info *node, | |
2750 | struct jump_info **base) | |
2751 | { | |
2752 | if (node->next) | |
2753 | node->next->prev = node->prev; | |
2754 | if (node->prev) | |
2755 | node->prev->next = node->next; | |
2756 | else | |
2757 | *base = node->next; | |
2758 | node->next = NULL; | |
2759 | node->prev = NULL; | |
2760 | } | |
2761 | ||
2762 | /* Insert unlinked jump info node into a list. */ | |
2763 | ||
2764 | static void | |
2765 | jump_info_insert (struct jump_info *node, | |
2766 | struct jump_info *target, | |
2767 | struct jump_info **base) | |
2768 | { | |
2769 | node->next = target; | |
2770 | node->prev = target->prev; | |
2771 | target->prev = node; | |
2772 | if (node->prev) | |
2773 | node->prev->next = node; | |
2774 | else | |
2775 | *base = node; | |
2776 | } | |
2777 | ||
2778 | /* Add unlinked node to the front of a list. */ | |
2779 | ||
2780 | static void | |
2781 | jump_info_add_front (struct jump_info *node, | |
2782 | struct jump_info **base) | |
2783 | { | |
2784 | node->next = *base; | |
2785 | if (node->next) | |
2786 | node->next->prev = node; | |
2787 | node->prev = NULL; | |
2788 | *base = node; | |
2789 | } | |
2790 | ||
2791 | /* Move linked node to target position. */ | |
2792 | ||
2793 | static void | |
2794 | jump_info_move_linked (struct jump_info *node, | |
2795 | struct jump_info *target, | |
2796 | struct jump_info **base) | |
2797 | { | |
2798 | /* Unlink node. */ | |
2799 | jump_info_unlink (node, base); | |
2800 | /* Insert node at target position. */ | |
2801 | jump_info_insert (node, target, base); | |
2802 | } | |
2803 | ||
2804 | /* Test if two jumps intersect. */ | |
2805 | ||
2806 | static bool | |
2807 | jump_info_intersect (const struct jump_info *a, | |
2808 | const struct jump_info *b) | |
2809 | { | |
2810 | return ((jump_info_max_address (a) >= jump_info_min_address (b)) | |
2811 | && (jump_info_min_address (a) <= jump_info_max_address (b))); | |
2812 | } | |
2813 | ||
2814 | /* Merge two compatible jump info objects. */ | |
2815 | ||
2816 | static void | |
2817 | jump_info_merge (struct jump_info **base) | |
2818 | { | |
2819 | struct jump_info *a; | |
2820 | ||
2821 | for (a = *base; a; a = a->next) | |
2822 | { | |
2823 | struct jump_info *b; | |
2824 | ||
2825 | for (b = a->next; b; b = b->next) | |
2826 | { | |
2827 | /* Merge both jumps into one. */ | |
2828 | if (a->end == b->end) | |
2829 | { | |
2830 | /* Reallocate addresses. */ | |
2831 | size_t needed_size = a->start.count + b->start.count; | |
2832 | size_t i; | |
2833 | ||
2834 | if (needed_size > a->start.max_count) | |
2835 | { | |
2836 | a->start.max_count += b->start.max_count; | |
2837 | a->start.addresses = | |
2838 | xrealloc (a->start.addresses, | |
2839 | a->start.max_count * sizeof (bfd_vma *)); | |
2840 | } | |
2841 | ||
2842 | /* Append start addresses. */ | |
2843 | for (i = 0; i < b->start.count; ++i) | |
2844 | a->start.addresses[a->start.count++] = | |
2845 | b->start.addresses[i]; | |
2846 | ||
2847 | /* Remove and delete jump. */ | |
2848 | struct jump_info *tmp = b->prev; | |
2849 | jump_info_unlink (b, base); | |
2850 | jump_info_free (b); | |
2851 | b = tmp; | |
2852 | } | |
2853 | } | |
2854 | } | |
2855 | } | |
2856 | ||
2857 | /* Sort jumps by their size and starting point using a stable | |
2858 | minsort. This could be improved if sorting performance is | |
2859 | an issue, for example by using mergesort. */ | |
2860 | ||
2861 | static void | |
2862 | jump_info_sort (struct jump_info **base) | |
2863 | { | |
2864 | struct jump_info *current_element = *base; | |
2865 | ||
2866 | while (current_element) | |
2867 | { | |
2868 | struct jump_info *best_match = current_element; | |
2869 | struct jump_info *runner = current_element->next; | |
2870 | bfd_vma best_size = jump_info_size (best_match); | |
2871 | ||
2872 | while (runner) | |
2873 | { | |
2874 | bfd_vma runner_size = jump_info_size (runner); | |
2875 | ||
2876 | if ((runner_size < best_size) | |
2877 | || ((runner_size == best_size) | |
2878 | && (jump_info_min_address (runner) | |
2879 | < jump_info_min_address (best_match)))) | |
2880 | { | |
2881 | best_match = runner; | |
2882 | best_size = runner_size; | |
2883 | } | |
2884 | ||
2885 | runner = runner->next; | |
2886 | } | |
2887 | ||
2888 | if (best_match == current_element) | |
2889 | current_element = current_element->next; | |
2890 | else | |
2891 | jump_info_move_linked (best_match, current_element, base); | |
2892 | } | |
2893 | } | |
2894 | ||
2895 | /* Visualize all jumps at a given address. */ | |
2896 | ||
2897 | static void | |
2898 | jump_info_visualize_address (bfd_vma address, | |
2899 | int max_level, | |
2900 | char *line_buffer, | |
2901 | uint8_t *color_buffer) | |
2902 | { | |
2903 | struct jump_info *ji = detected_jumps; | |
2904 | size_t len = (max_level + 1) * 3; | |
2905 | ||
2906 | /* Clear line buffer. */ | |
2907 | memset (line_buffer, ' ', len); | |
2908 | memset (color_buffer, 0, len); | |
2909 | ||
2910 | /* Iterate over jumps and add their ASCII art. */ | |
2911 | while (ji) | |
2912 | { | |
2913 | /* Discard jumps that are never needed again. */ | |
2914 | if (jump_info_max_address (ji) < address) | |
2915 | { | |
2916 | struct jump_info *tmp = ji; | |
2917 | ||
2918 | ji = ji->next; | |
2919 | jump_info_unlink (tmp, &detected_jumps); | |
2920 | jump_info_free (tmp); | |
2921 | continue; | |
2922 | } | |
2923 | ||
2924 | /* This jump intersects with the current address. */ | |
2925 | if (jump_info_min_address (ji) <= address) | |
2926 | { | |
2927 | /* Hash target address to get an even | |
2928 | distribution between all values. */ | |
2929 | bfd_vma hash_address = jump_info_end_address (ji); | |
2930 | uint8_t color = iterative_hash_object (hash_address, 0); | |
2931 | /* Fetch line offset. */ | |
2932 | int offset = (max_level - ji->level) * 3; | |
2933 | ||
2934 | /* Draw start line. */ | |
2935 | if (jump_info_is_start_address (ji, address)) | |
2936 | { | |
2937 | size_t i = offset + 1; | |
2938 | ||
2939 | for (; i < len - 1; ++i) | |
2940 | if (line_buffer[i] == ' ') | |
2941 | { | |
2942 | line_buffer[i] = '-'; | |
2943 | color_buffer[i] = color; | |
2944 | } | |
2945 | ||
2946 | if (line_buffer[i] == ' ') | |
2947 | { | |
2948 | line_buffer[i] = '-'; | |
2949 | color_buffer[i] = color; | |
2950 | } | |
2951 | else if (line_buffer[i] == '>') | |
2952 | { | |
2953 | line_buffer[i] = 'X'; | |
2954 | color_buffer[i] = color; | |
2955 | } | |
2956 | ||
2957 | if (line_buffer[offset] == ' ') | |
2958 | { | |
2959 | if (address <= ji->end) | |
2960 | line_buffer[offset] = | |
2961 | (jump_info_min_address (ji) == address) ? ',': '+'; | |
2962 | else | |
2963 | line_buffer[offset] = | |
2964 | (jump_info_max_address (ji) == address) ? '\'': '+'; | |
2965 | color_buffer[offset] = color; | |
2966 | } | |
2967 | } | |
2968 | /* Draw jump target. */ | |
2969 | else if (jump_info_is_end_address (ji, address)) | |
2970 | { | |
2971 | size_t i = offset + 1; | |
2972 | ||
2973 | for (; i < len - 1; ++i) | |
2974 | if (line_buffer[i] == ' ') | |
2975 | { | |
2976 | line_buffer[i] = '-'; | |
2977 | color_buffer[i] = color; | |
2978 | } | |
2979 | ||
2980 | if (line_buffer[i] == ' ') | |
2981 | { | |
2982 | line_buffer[i] = '>'; | |
2983 | color_buffer[i] = color; | |
2984 | } | |
2985 | else if (line_buffer[i] == '-') | |
2986 | { | |
2987 | line_buffer[i] = 'X'; | |
2988 | color_buffer[i] = color; | |
2989 | } | |
2990 | ||
2991 | if (line_buffer[offset] == ' ') | |
2992 | { | |
2993 | if (jump_info_min_address (ji) < address) | |
2994 | line_buffer[offset] = | |
2995 | (jump_info_max_address (ji) > address) ? '>' : '\''; | |
2996 | else | |
2997 | line_buffer[offset] = ','; | |
2998 | color_buffer[offset] = color; | |
2999 | } | |
3000 | } | |
3001 | /* Draw intermediate line segment. */ | |
3002 | else if (line_buffer[offset] == ' ') | |
3003 | { | |
3004 | line_buffer[offset] = '|'; | |
3005 | color_buffer[offset] = color; | |
3006 | } | |
3007 | } | |
3008 | ||
3009 | ji = ji->next; | |
3010 | } | |
3011 | } | |
3012 | ||
3013 | /* Clone of disassemble_bytes to detect jumps inside a function. */ | |
3014 | /* FIXME: is this correct? Can we strip it down even further? */ | |
3015 | ||
3016 | static struct jump_info * | |
3017 | disassemble_jumps (struct disassemble_info * inf, | |
3018 | disassembler_ftype disassemble_fn, | |
3019 | bfd_vma start_offset, | |
3020 | bfd_vma stop_offset, | |
3021 | bfd_vma rel_offset, | |
3022 | arelent ** relpp, | |
3023 | arelent ** relppend) | |
3024 | { | |
3025 | struct objdump_disasm_info *aux; | |
3026 | struct jump_info *jumps = NULL; | |
3027 | asection *section; | |
3028 | bfd_vma addr_offset; | |
3029 | unsigned int opb = inf->octets_per_byte; | |
3030 | int octets = opb; | |
3031 | SFILE sfile; | |
3032 | ||
3033 | aux = (struct objdump_disasm_info *) inf->application_data; | |
3034 | section = inf->section; | |
3035 | ||
3036 | sfile.alloc = 120; | |
3037 | sfile.buffer = (char *) xmalloc (sfile.alloc); | |
3038 | sfile.pos = 0; | |
3039 | ||
3040 | inf->insn_info_valid = 0; | |
3041 | disassemble_set_printf (inf, &sfile, (fprintf_ftype) objdump_sprintf, | |
3042 | (fprintf_styled_ftype) objdump_styled_sprintf); | |
3043 | ||
3044 | addr_offset = start_offset; | |
3045 | while (addr_offset < stop_offset) | |
3046 | { | |
3047 | int previous_octets; | |
3048 | ||
3049 | /* Remember the length of the previous instruction. */ | |
3050 | previous_octets = octets; | |
3051 | octets = 0; | |
3052 | ||
3053 | sfile.pos = 0; | |
3054 | inf->bytes_per_line = 0; | |
3055 | inf->bytes_per_chunk = 0; | |
3056 | inf->flags = ((disassemble_all ? DISASSEMBLE_DATA : 0) | |
3057 | | (wide_output ? WIDE_OUTPUT : 0)); | |
3058 | if (machine) | |
3059 | inf->flags |= USER_SPECIFIED_MACHINE_TYPE; | |
3060 | ||
3061 | if (inf->disassembler_needs_relocs | |
3062 | && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0 | |
3063 | && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0 | |
3064 | && relpp < relppend) | |
3065 | { | |
3066 | bfd_signed_vma distance_to_rel; | |
3067 | ||
3068 | distance_to_rel = (*relpp)->address - (rel_offset + addr_offset); | |
3069 | ||
3070 | /* Check to see if the current reloc is associated with | |
3071 | the instruction that we are about to disassemble. */ | |
3072 | if (distance_to_rel == 0 | |
3073 | /* FIXME: This is wrong. We are trying to catch | |
3074 | relocs that are addressed part way through the | |
3075 | current instruction, as might happen with a packed | |
3076 | VLIW instruction. Unfortunately we do not know the | |
3077 | length of the current instruction since we have not | |
3078 | disassembled it yet. Instead we take a guess based | |
3079 | upon the length of the previous instruction. The | |
3080 | proper solution is to have a new target-specific | |
3081 | disassembler function which just returns the length | |
3082 | of an instruction at a given address without trying | |
3083 | to display its disassembly. */ | |
3084 | || (distance_to_rel > 0 | |
3085 | && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb))) | |
3086 | { | |
3087 | inf->flags |= INSN_HAS_RELOC; | |
3088 | } | |
3089 | } | |
3090 | ||
3091 | if (! disassemble_all | |
3092 | && (section->flags & (SEC_CODE | SEC_HAS_CONTENTS)) | |
3093 | == (SEC_CODE | SEC_HAS_CONTENTS)) | |
3094 | /* Set a stop_vma so that the disassembler will not read | |
3095 | beyond the next symbol. We assume that symbols appear on | |
3096 | the boundaries between instructions. We only do this when | |
3097 | disassembling code of course, and when -D is in effect. */ | |
3098 | inf->stop_vma = section->vma + stop_offset; | |
3099 | ||
3100 | inf->stop_offset = stop_offset; | |
3101 | ||
3102 | /* Extract jump information. */ | |
3103 | inf->insn_info_valid = 0; | |
3104 | disassembler_in_comment = false; | |
3105 | octets = (*disassemble_fn) (section->vma + addr_offset, inf); | |
3106 | /* Test if a jump was detected. */ | |
3107 | if (inf->insn_info_valid | |
3108 | && ((inf->insn_type == dis_branch) | |
3109 | || (inf->insn_type == dis_condbranch) | |
3110 | || (inf->insn_type == dis_jsr) | |
3111 | || (inf->insn_type == dis_condjsr)) | |
3112 | && (inf->target >= section->vma + start_offset) | |
3113 | && (inf->target < section->vma + stop_offset)) | |
3114 | { | |
3115 | struct jump_info *ji = | |
3116 | jump_info_new (section->vma + addr_offset, inf->target, -1); | |
3117 | jump_info_add_front (ji, &jumps); | |
3118 | } | |
3119 | ||
3120 | inf->stop_vma = 0; | |
3121 | ||
3122 | addr_offset += octets / opb; | |
3123 | } | |
3124 | ||
3125 | disassemble_set_printf (inf, (void *) stdout, (fprintf_ftype) fprintf, | |
3126 | (fprintf_styled_ftype) fprintf_styled); | |
3127 | free (sfile.buffer); | |
3128 | ||
3129 | /* Merge jumps. */ | |
3130 | jump_info_merge (&jumps); | |
3131 | /* Process jumps. */ | |
3132 | jump_info_sort (&jumps); | |
3133 | ||
3134 | /* Group jumps by level. */ | |
3135 | struct jump_info *last_jump = jumps; | |
3136 | int max_level = -1; | |
3137 | ||
3138 | while (last_jump) | |
3139 | { | |
3140 | /* The last jump is part of the next group. */ | |
3141 | struct jump_info *base = last_jump; | |
3142 | /* Increment level. */ | |
3143 | base->level = ++max_level; | |
3144 | ||
3145 | /* Find jumps that can be combined on the same | |
3146 | level, with the largest jumps tested first. | |
3147 | This has the advantage that large jumps are on | |
3148 | lower levels and do not intersect with small | |
3149 | jumps that get grouped on higher levels. */ | |
3150 | struct jump_info *exchange_item = last_jump->next; | |
3151 | struct jump_info *it = exchange_item; | |
3152 | ||
3153 | for (; it; it = it->next) | |
3154 | { | |
3155 | /* Test if the jump intersects with any | |
3156 | jump from current group. */ | |
3157 | bool ok = true; | |
3158 | struct jump_info *it_collision; | |
3159 | ||
3160 | for (it_collision = base; | |
3161 | it_collision != exchange_item; | |
3162 | it_collision = it_collision->next) | |
3163 | { | |
3164 | /* This jump intersects so we leave it out. */ | |
3165 | if (jump_info_intersect (it_collision, it)) | |
3166 | { | |
3167 | ok = false; | |
3168 | break; | |
3169 | } | |
3170 | } | |
3171 | ||
3172 | /* Add jump to group. */ | |
3173 | if (ok) | |
3174 | { | |
3175 | /* Move current element to the front. */ | |
3176 | if (it != exchange_item) | |
3177 | { | |
3178 | struct jump_info *save = it->prev; | |
3179 | jump_info_move_linked (it, exchange_item, &jumps); | |
3180 | last_jump = it; | |
3181 | it = save; | |
3182 | } | |
3183 | else | |
3184 | { | |
3185 | last_jump = exchange_item; | |
3186 | exchange_item = exchange_item->next; | |
3187 | } | |
3188 | last_jump->level = max_level; | |
3189 | } | |
3190 | } | |
3191 | ||
3192 | /* Move to next group. */ | |
3193 | last_jump = exchange_item; | |
3194 | } | |
3195 | ||
3196 | return jumps; | |
3197 | } | |
3198 | ||
3199 | /* The number of zeroes we want to see before we start skipping them. | |
3200 | The number is arbitrarily chosen. */ | |
3201 | ||
3202 | #define DEFAULT_SKIP_ZEROES 8 | |
3203 | ||
3204 | /* The number of zeroes to skip at the end of a section. If the | |
3205 | number of zeroes at the end is between SKIP_ZEROES_AT_END and | |
3206 | SKIP_ZEROES, they will be disassembled. If there are fewer than | |
3207 | SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic | |
3208 | attempt to avoid disassembling zeroes inserted by section | |
3209 | alignment. */ | |
3210 | ||
3211 | #define DEFAULT_SKIP_ZEROES_AT_END 3 | |
3212 | ||
3213 | static int | |
3214 | null_print (const void * stream ATTRIBUTE_UNUSED, const char * format ATTRIBUTE_UNUSED, ...) | |
3215 | { | |
3216 | return 1; | |
3217 | } | |
3218 | ||
3219 | /* Like null_print, but takes the extra STYLE argument. As this is not | |
3220 | going to print anything, the extra argument is just ignored. */ | |
3221 | ||
3222 | static int | |
3223 | null_styled_print (const void * stream ATTRIBUTE_UNUSED, | |
3224 | enum disassembler_style style ATTRIBUTE_UNUSED, | |
3225 | const char * format ATTRIBUTE_UNUSED, ...) | |
3226 | { | |
3227 | return 1; | |
3228 | } | |
3229 | ||
3230 | /* Print out jump visualization. */ | |
3231 | ||
3232 | static void | |
3233 | print_jump_visualisation (bfd_vma addr, int max_level, char *line_buffer, | |
3234 | uint8_t *color_buffer) | |
3235 | { | |
3236 | if (!line_buffer) | |
3237 | return; | |
3238 | ||
3239 | jump_info_visualize_address (addr, max_level, line_buffer, color_buffer); | |
3240 | ||
3241 | size_t line_buffer_size = strlen (line_buffer); | |
3242 | char last_color = 0; | |
3243 | size_t i; | |
3244 | ||
3245 | for (i = 0; i <= line_buffer_size; ++i) | |
3246 | { | |
3247 | if (color_output) | |
3248 | { | |
3249 | uint8_t color = (i < line_buffer_size) ? color_buffer[i]: 0; | |
3250 | ||
3251 | if (color != last_color) | |
3252 | { | |
3253 | if (color) | |
3254 | if (extended_color_output) | |
3255 | /* Use extended 8bit color, but | |
3256 | do not choose dark colors. */ | |
3257 | printf ("\033[38;5;%dm", 124 + (color % 108)); | |
3258 | else | |
3259 | /* Use simple terminal colors. */ | |
3260 | printf ("\033[%dm", 31 + (color % 7)); | |
3261 | else | |
3262 | /* Clear color. */ | |
3263 | printf ("\033[0m"); | |
3264 | last_color = color; | |
3265 | } | |
3266 | } | |
3267 | putchar ((i < line_buffer_size) ? line_buffer[i]: ' '); | |
3268 | } | |
3269 | } | |
3270 | ||
3271 | /* Disassemble some data in memory between given values. */ | |
3272 | ||
3273 | static void | |
3274 | disassemble_bytes (struct disassemble_info *inf, | |
3275 | disassembler_ftype disassemble_fn, | |
3276 | bool insns, | |
3277 | bfd_byte *data, | |
3278 | bfd_vma start_offset, | |
3279 | bfd_vma stop_offset, | |
3280 | bfd_vma rel_offset, | |
3281 | arelent **relpp, | |
3282 | arelent **relppend) | |
3283 | { | |
3284 | struct objdump_disasm_info *aux; | |
3285 | asection *section; | |
3286 | unsigned int octets_per_line; | |
3287 | unsigned int skip_addr_chars; | |
3288 | bfd_vma addr_offset; | |
3289 | unsigned int opb = inf->octets_per_byte; | |
3290 | unsigned int skip_zeroes = inf->skip_zeroes; | |
3291 | unsigned int skip_zeroes_at_end = inf->skip_zeroes_at_end; | |
3292 | size_t octets; | |
3293 | SFILE sfile; | |
3294 | ||
3295 | aux = (struct objdump_disasm_info *) inf->application_data; | |
3296 | section = inf->section; | |
3297 | ||
3298 | sfile.alloc = 120; | |
3299 | sfile.buffer = (char *) xmalloc (sfile.alloc); | |
3300 | sfile.pos = 0; | |
3301 | ||
3302 | if (insn_width) | |
3303 | octets_per_line = insn_width; | |
3304 | else if (insns) | |
3305 | octets_per_line = 4; | |
3306 | else | |
3307 | octets_per_line = 16; | |
3308 | ||
3309 | /* Figure out how many characters to skip at the start of an | |
3310 | address, to make the disassembly look nicer. We discard leading | |
3311 | zeroes in chunks of 4, ensuring that there is always a leading | |
3312 | zero remaining. */ | |
3313 | skip_addr_chars = 0; | |
3314 | if (!no_addresses && !prefix_addresses) | |
3315 | { | |
3316 | char buf[30]; | |
3317 | ||
3318 | bfd_sprintf_vma (aux->abfd, buf, section->vma + section->size / opb); | |
3319 | ||
3320 | while (buf[skip_addr_chars] == '0') | |
3321 | ++skip_addr_chars; | |
3322 | ||
3323 | /* Don't discard zeros on overflow. */ | |
3324 | if (buf[skip_addr_chars] == '\0' && section->vma != 0) | |
3325 | skip_addr_chars = 0; | |
3326 | ||
3327 | if (skip_addr_chars != 0) | |
3328 | skip_addr_chars = (skip_addr_chars - 1) & -4; | |
3329 | } | |
3330 | ||
3331 | inf->insn_info_valid = 0; | |
3332 | ||
3333 | /* Determine maximum level. */ | |
3334 | uint8_t *color_buffer = NULL; | |
3335 | char *line_buffer = NULL; | |
3336 | int max_level = -1; | |
3337 | ||
3338 | /* Some jumps were detected. */ | |
3339 | if (detected_jumps) | |
3340 | { | |
3341 | struct jump_info *ji; | |
3342 | ||
3343 | /* Find maximum jump level. */ | |
3344 | for (ji = detected_jumps; ji; ji = ji->next) | |
3345 | { | |
3346 | if (ji->level > max_level) | |
3347 | max_level = ji->level; | |
3348 | } | |
3349 | ||
3350 | /* Allocate buffers. */ | |
3351 | size_t len = (max_level + 1) * 3 + 1; | |
3352 | line_buffer = xmalloc (len); | |
3353 | line_buffer[len - 1] = 0; | |
3354 | color_buffer = xmalloc (len); | |
3355 | color_buffer[len - 1] = 0; | |
3356 | } | |
3357 | ||
3358 | addr_offset = start_offset; | |
3359 | while (addr_offset < stop_offset) | |
3360 | { | |
3361 | bool need_nl = false; | |
3362 | ||
3363 | octets = 0; | |
3364 | ||
3365 | /* Make sure we don't use relocs from previous instructions. */ | |
3366 | aux->reloc = NULL; | |
3367 | ||
3368 | /* If we see more than SKIP_ZEROES octets of zeroes, we just | |
3369 | print `...'. */ | |
3370 | if (! disassemble_zeroes) | |
3371 | for (; octets < (stop_offset - addr_offset) * opb; octets++) | |
3372 | if (data[addr_offset * opb + octets] != 0) | |
3373 | break; | |
3374 | if (! disassemble_zeroes | |
3375 | && (inf->insn_info_valid == 0 | |
3376 | || inf->branch_delay_insns == 0) | |
3377 | && (octets >= skip_zeroes | |
3378 | || (octets == (stop_offset - addr_offset) * opb | |
3379 | && octets < skip_zeroes_at_end))) | |
3380 | { | |
3381 | /* If there are more nonzero octets to follow, we only skip | |
3382 | zeroes in multiples of 4, to try to avoid running over | |
3383 | the start of an instruction which happens to start with | |
3384 | zero. */ | |
3385 | if (octets != (stop_offset - addr_offset) * opb) | |
3386 | octets &= ~3; | |
3387 | ||
3388 | /* If we are going to display more data, and we are displaying | |
3389 | file offsets, then tell the user how many zeroes we skip | |
3390 | and the file offset from where we resume dumping. */ | |
3391 | if (display_file_offsets | |
3392 | && octets / opb < stop_offset - addr_offset) | |
3393 | printf (_("\t... (skipping %lu zeroes, " | |
3394 | "resuming at file offset: 0x%lx)\n"), | |
3395 | (unsigned long) (octets / opb), | |
3396 | (unsigned long) (section->filepos | |
3397 | + addr_offset + octets / opb)); | |
3398 | else | |
3399 | printf ("\t...\n"); | |
3400 | } | |
3401 | else | |
3402 | { | |
3403 | char buf[MAX_INSN_WIDTH + 1]; | |
3404 | unsigned int bpc = 0; | |
3405 | unsigned int pb = 0; | |
3406 | ||
3407 | if (with_line_numbers || with_source_code) | |
3408 | show_line (aux->abfd, section, addr_offset); | |
3409 | ||
3410 | if (no_addresses) | |
3411 | printf ("\t"); | |
3412 | else if (!prefix_addresses) | |
3413 | { | |
3414 | char *s; | |
3415 | ||
3416 | bfd_sprintf_vma (aux->abfd, buf, section->vma + addr_offset); | |
3417 | for (s = buf + skip_addr_chars; *s == '0'; s++) | |
3418 | *s = ' '; | |
3419 | if (*s == '\0') | |
3420 | *--s = '0'; | |
3421 | printf ("%s:\t", buf + skip_addr_chars); | |
3422 | } | |
3423 | else | |
3424 | { | |
3425 | aux->require_sec = true; | |
3426 | objdump_print_address (section->vma + addr_offset, inf); | |
3427 | aux->require_sec = false; | |
3428 | putchar (' '); | |
3429 | } | |
3430 | ||
3431 | print_jump_visualisation (section->vma + addr_offset, | |
3432 | max_level, line_buffer, | |
3433 | color_buffer); | |
3434 | ||
3435 | if (insns) | |
3436 | { | |
3437 | int insn_size; | |
3438 | ||
3439 | sfile.pos = 0; | |
3440 | disassemble_set_printf | |
3441 | (inf, &sfile, (fprintf_ftype) objdump_sprintf, | |
3442 | (fprintf_styled_ftype) objdump_styled_sprintf); | |
3443 | inf->bytes_per_line = 0; | |
3444 | inf->bytes_per_chunk = 0; | |
3445 | inf->flags = ((disassemble_all ? DISASSEMBLE_DATA : 0) | |
3446 | | (wide_output ? WIDE_OUTPUT : 0)); | |
3447 | if (machine) | |
3448 | inf->flags |= USER_SPECIFIED_MACHINE_TYPE; | |
3449 | ||
3450 | if (inf->disassembler_needs_relocs | |
3451 | && (bfd_get_file_flags (aux->abfd) & EXEC_P) == 0 | |
3452 | && (bfd_get_file_flags (aux->abfd) & DYNAMIC) == 0 | |
3453 | && relpp < relppend) | |
3454 | { | |
3455 | bfd_signed_vma distance_to_rel; | |
3456 | int max_reloc_offset | |
3457 | = aux->abfd->arch_info->max_reloc_offset_into_insn; | |
3458 | ||
3459 | distance_to_rel = ((*relpp)->address - rel_offset | |
3460 | - addr_offset); | |
3461 | ||
3462 | insn_size = 0; | |
3463 | if (distance_to_rel > 0 | |
3464 | && (max_reloc_offset < 0 | |
3465 | || distance_to_rel <= max_reloc_offset)) | |
3466 | { | |
3467 | /* This reloc *might* apply to the current insn, | |
3468 | starting somewhere inside it. Discover the length | |
3469 | of the current insn so that the check below will | |
3470 | work. */ | |
3471 | if (insn_width) | |
3472 | insn_size = insn_width; | |
3473 | else | |
3474 | { | |
3475 | /* We find the length by calling the dissassembler | |
3476 | function with a dummy print handler. This should | |
3477 | work unless the disassembler is not expecting to | |
3478 | be called multiple times for the same address. | |
3479 | ||
3480 | This does mean disassembling the instruction | |
3481 | twice, but we only do this when there is a high | |
3482 | probability that there is a reloc that will | |
3483 | affect the instruction. */ | |
3484 | disassemble_set_printf | |
3485 | (inf, inf->stream, (fprintf_ftype) null_print, | |
3486 | (fprintf_styled_ftype) null_styled_print); | |
3487 | insn_size = disassemble_fn (section->vma | |
3488 | + addr_offset, inf); | |
3489 | disassemble_set_printf | |
3490 | (inf, inf->stream, | |
3491 | (fprintf_ftype) objdump_sprintf, | |
3492 | (fprintf_styled_ftype) objdump_styled_sprintf); | |
3493 | } | |
3494 | } | |
3495 | ||
3496 | /* Check to see if the current reloc is associated with | |
3497 | the instruction that we are about to disassemble. */ | |
3498 | if (distance_to_rel == 0 | |
3499 | || (distance_to_rel > 0 | |
3500 | && distance_to_rel < insn_size / (int) opb)) | |
3501 | { | |
3502 | inf->flags |= INSN_HAS_RELOC; | |
3503 | aux->reloc = *relpp; | |
3504 | } | |
3505 | } | |
3506 | ||
3507 | if (! disassemble_all | |
3508 | && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS)) | |
3509 | == (SEC_CODE | SEC_HAS_CONTENTS))) | |
3510 | /* Set a stop_vma so that the disassembler will not read | |
3511 | beyond the next symbol. We assume that symbols appear on | |
3512 | the boundaries between instructions. We only do this when | |
3513 | disassembling code of course, and when -D is in effect. */ | |
3514 | inf->stop_vma = section->vma + stop_offset; | |
3515 | ||
3516 | inf->stop_offset = stop_offset; | |
3517 | disassembler_in_comment = false; | |
3518 | insn_size = (*disassemble_fn) (section->vma + addr_offset, inf); | |
3519 | octets = insn_size; | |
3520 | ||
3521 | inf->stop_vma = 0; | |
3522 | disassemble_set_printf (inf, stdout, (fprintf_ftype) fprintf, | |
3523 | (fprintf_styled_ftype) fprintf_styled); | |
3524 | if (insn_width == 0 && inf->bytes_per_line != 0) | |
3525 | octets_per_line = inf->bytes_per_line; | |
3526 | if (insn_size < (int) opb) | |
3527 | { | |
3528 | if (sfile.pos) | |
3529 | printf ("%s\n", sfile.buffer); | |
3530 | if (insn_size >= 0) | |
3531 | { | |
3532 | non_fatal (_("disassemble_fn returned length %d"), | |
3533 | insn_size); | |
3534 | exit_status = 1; | |
3535 | } | |
3536 | break; | |
3537 | } | |
3538 | } | |
3539 | else | |
3540 | { | |
3541 | bfd_vma j; | |
3542 | ||
3543 | octets = octets_per_line; | |
3544 | if (octets / opb > stop_offset - addr_offset) | |
3545 | octets = (stop_offset - addr_offset) * opb; | |
3546 | ||
3547 | for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j) | |
3548 | { | |
3549 | if (ISPRINT (data[j])) | |
3550 | buf[j - addr_offset * opb] = data[j]; | |
3551 | else | |
3552 | buf[j - addr_offset * opb] = '.'; | |
3553 | } | |
3554 | buf[j - addr_offset * opb] = '\0'; | |
3555 | } | |
3556 | ||
3557 | if (prefix_addresses | |
3558 | ? show_raw_insn > 0 | |
3559 | : show_raw_insn >= 0) | |
3560 | { | |
3561 | bfd_vma j; | |
3562 | ||
3563 | /* If ! prefix_addresses and ! wide_output, we print | |
3564 | octets_per_line octets per line. */ | |
3565 | pb = octets; | |
3566 | if (pb > octets_per_line && ! prefix_addresses && ! wide_output) | |
3567 | pb = octets_per_line; | |
3568 | ||
3569 | if (inf->bytes_per_chunk) | |
3570 | bpc = inf->bytes_per_chunk; | |
3571 | else | |
3572 | bpc = 1; | |
3573 | ||
3574 | for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc) | |
3575 | { | |
3576 | /* PR 21580: Check for a buffer ending early. */ | |
3577 | if (j + bpc <= stop_offset * opb) | |
3578 | { | |
3579 | unsigned int k; | |
3580 | ||
3581 | if (inf->display_endian == BFD_ENDIAN_LITTLE) | |
3582 | { | |
3583 | for (k = bpc; k-- != 0; ) | |
3584 | printf ("%02x", (unsigned) data[j + k]); | |
3585 | } | |
3586 | else | |
3587 | { | |
3588 | for (k = 0; k < bpc; k++) | |
3589 | printf ("%02x", (unsigned) data[j + k]); | |
3590 | } | |
3591 | } | |
3592 | putchar (' '); | |
3593 | } | |
3594 | ||
3595 | for (; pb < octets_per_line; pb += bpc) | |
3596 | { | |
3597 | unsigned int k; | |
3598 | ||
3599 | for (k = 0; k < bpc; k++) | |
3600 | printf (" "); | |
3601 | putchar (' '); | |
3602 | } | |
3603 | ||
3604 | /* Separate raw data from instruction by extra space. */ | |
3605 | if (insns) | |
3606 | putchar ('\t'); | |
3607 | else | |
3608 | printf (" "); | |
3609 | } | |
3610 | ||
3611 | if (! insns) | |
3612 | printf ("%s", buf); | |
3613 | else if (sfile.pos) | |
3614 | printf ("%s", sfile.buffer); | |
3615 | ||
3616 | if (prefix_addresses | |
3617 | ? show_raw_insn > 0 | |
3618 | : show_raw_insn >= 0) | |
3619 | { | |
3620 | while (pb < octets) | |
3621 | { | |
3622 | bfd_vma j; | |
3623 | char *s; | |
3624 | ||
3625 | putchar ('\n'); | |
3626 | j = addr_offset * opb + pb; | |
3627 | ||
3628 | if (no_addresses) | |
3629 | printf ("\t"); | |
3630 | else | |
3631 | { | |
3632 | bfd_sprintf_vma (aux->abfd, buf, section->vma + j / opb); | |
3633 | for (s = buf + skip_addr_chars; *s == '0'; s++) | |
3634 | *s = ' '; | |
3635 | if (*s == '\0') | |
3636 | *--s = '0'; | |
3637 | printf ("%s:\t", buf + skip_addr_chars); | |
3638 | } | |
3639 | ||
3640 | print_jump_visualisation (section->vma + j / opb, | |
3641 | max_level, line_buffer, | |
3642 | color_buffer); | |
3643 | ||
3644 | pb += octets_per_line; | |
3645 | if (pb > octets) | |
3646 | pb = octets; | |
3647 | for (; j < addr_offset * opb + pb; j += bpc) | |
3648 | { | |
3649 | /* PR 21619: Check for a buffer ending early. */ | |
3650 | if (j + bpc <= stop_offset * opb) | |
3651 | { | |
3652 | unsigned int k; | |
3653 | ||
3654 | if (inf->display_endian == BFD_ENDIAN_LITTLE) | |
3655 | { | |
3656 | for (k = bpc; k-- != 0; ) | |
3657 | printf ("%02x", (unsigned) data[j + k]); | |
3658 | } | |
3659 | else | |
3660 | { | |
3661 | for (k = 0; k < bpc; k++) | |
3662 | printf ("%02x", (unsigned) data[j + k]); | |
3663 | } | |
3664 | } | |
3665 | putchar (' '); | |
3666 | } | |
3667 | } | |
3668 | } | |
3669 | ||
3670 | if (!wide_output) | |
3671 | putchar ('\n'); | |
3672 | else | |
3673 | need_nl = true; | |
3674 | } | |
3675 | ||
3676 | while (relpp < relppend | |
3677 | && (*relpp)->address < rel_offset + addr_offset + octets / opb) | |
3678 | { | |
3679 | if (dump_reloc_info || dump_dynamic_reloc_info) | |
3680 | { | |
3681 | arelent *q; | |
3682 | ||
3683 | q = *relpp; | |
3684 | ||
3685 | if (wide_output) | |
3686 | putchar ('\t'); | |
3687 | else | |
3688 | printf ("\t\t\t"); | |
3689 | ||
3690 | if (!no_addresses) | |
3691 | { | |
3692 | objdump_print_value (section->vma - rel_offset + q->address, | |
3693 | inf, true); | |
3694 | printf (": "); | |
3695 | } | |
3696 | ||
3697 | if (q->howto == NULL) | |
3698 | printf ("*unknown*\t"); | |
3699 | else if (q->howto->name) | |
3700 | printf ("%s\t", q->howto->name); | |
3701 | else | |
3702 | printf ("%d\t", q->howto->type); | |
3703 | ||
3704 | if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL) | |
3705 | printf ("*unknown*"); | |
3706 | else | |
3707 | { | |
3708 | const char *sym_name; | |
3709 | ||
3710 | sym_name = bfd_asymbol_name (*q->sym_ptr_ptr); | |
3711 | if (sym_name != NULL && *sym_name != '\0') | |
3712 | objdump_print_symname (aux->abfd, inf, *q->sym_ptr_ptr); | |
3713 | else | |
3714 | { | |
3715 | asection *sym_sec; | |
3716 | ||
3717 | sym_sec = bfd_asymbol_section (*q->sym_ptr_ptr); | |
3718 | sym_name = bfd_section_name (sym_sec); | |
3719 | if (sym_name == NULL || *sym_name == '\0') | |
3720 | sym_name = "*unknown*"; | |
3721 | printf ("%s", sanitize_string (sym_name)); | |
3722 | } | |
3723 | } | |
3724 | ||
3725 | if (q->addend) | |
3726 | { | |
3727 | bfd_vma addend = q->addend; | |
3728 | if ((bfd_signed_vma) addend < 0) | |
3729 | { | |
3730 | printf ("-0x"); | |
3731 | addend = -addend; | |
3732 | } | |
3733 | else | |
3734 | printf ("+0x"); | |
3735 | objdump_print_value (addend, inf, true); | |
3736 | } | |
3737 | ||
3738 | printf ("\n"); | |
3739 | need_nl = false; | |
3740 | } | |
3741 | ++relpp; | |
3742 | } | |
3743 | ||
3744 | if (need_nl) | |
3745 | printf ("\n"); | |
3746 | ||
3747 | addr_offset += octets / opb; | |
3748 | } | |
3749 | ||
3750 | free (sfile.buffer); | |
3751 | free (line_buffer); | |
3752 | free (color_buffer); | |
3753 | } | |
3754 | ||
3755 | static void | |
3756 | disassemble_section (bfd *abfd, asection *section, void *inf) | |
3757 | { | |
3758 | const struct elf_backend_data *bed; | |
3759 | bfd_vma sign_adjust = 0; | |
3760 | struct disassemble_info *pinfo = (struct disassemble_info *) inf; | |
3761 | struct objdump_disasm_info *paux; | |
3762 | unsigned int opb = pinfo->octets_per_byte; | |
3763 | bfd_byte *data = NULL; | |
3764 | bfd_size_type datasize = 0; | |
3765 | arelent **rel_pp = NULL; | |
3766 | arelent **rel_ppstart = NULL; | |
3767 | arelent **rel_ppend; | |
3768 | bfd_vma stop_offset; | |
3769 | asymbol *sym = NULL; | |
3770 | long place = 0; | |
3771 | long rel_count; | |
3772 | bfd_vma rel_offset; | |
3773 | unsigned long addr_offset; | |
3774 | bool do_print; | |
3775 | enum loop_control | |
3776 | { | |
3777 | stop_offset_reached, | |
3778 | function_sym, | |
3779 | next_sym | |
3780 | } loop_until; | |
3781 | ||
3782 | if (only_list == NULL) | |
3783 | { | |
3784 | /* Sections that do not contain machine | |
3785 | code are not normally disassembled. */ | |
3786 | if ((section->flags & SEC_HAS_CONTENTS) == 0) | |
3787 | return; | |
3788 | ||
3789 | if (! disassemble_all | |
3790 | && (section->flags & SEC_CODE) == 0) | |
3791 | return; | |
3792 | } | |
3793 | else if (!process_section_p (section)) | |
3794 | return; | |
3795 | ||
3796 | datasize = bfd_section_size (section); | |
3797 | if (datasize == 0) | |
3798 | return; | |
3799 | ||
3800 | if (start_address == (bfd_vma) -1 | |
3801 | || start_address < section->vma) | |
3802 | addr_offset = 0; | |
3803 | else | |
3804 | addr_offset = start_address - section->vma; | |
3805 | ||
3806 | if (stop_address == (bfd_vma) -1) | |
3807 | stop_offset = datasize / opb; | |
3808 | else | |
3809 | { | |
3810 | if (stop_address < section->vma) | |
3811 | stop_offset = 0; | |
3812 | else | |
3813 | stop_offset = stop_address - section->vma; | |
3814 | if (stop_offset > datasize / opb) | |
3815 | stop_offset = datasize / opb; | |
3816 | } | |
3817 | ||
3818 | if (addr_offset >= stop_offset) | |
3819 | return; | |
3820 | ||
3821 | /* Decide which set of relocs to use. Load them if necessary. */ | |
3822 | paux = (struct objdump_disasm_info *) pinfo->application_data; | |
3823 | if (pinfo->dynrelbuf && dump_dynamic_reloc_info) | |
3824 | { | |
3825 | rel_pp = pinfo->dynrelbuf; | |
3826 | rel_count = pinfo->dynrelcount; | |
3827 | /* Dynamic reloc addresses are absolute, non-dynamic are section | |
3828 | relative. REL_OFFSET specifies the reloc address corresponding | |
3829 | to the start of this section. */ | |
3830 | rel_offset = section->vma; | |
3831 | } | |
3832 | else | |
3833 | { | |
3834 | rel_count = 0; | |
3835 | rel_pp = NULL; | |
3836 | rel_offset = 0; | |
3837 | ||
3838 | if ((section->flags & SEC_RELOC) != 0 | |
3839 | && (dump_reloc_info || pinfo->disassembler_needs_relocs)) | |
3840 | { | |
3841 | long relsize; | |
3842 | ||
3843 | relsize = bfd_get_reloc_upper_bound (abfd, section); | |
3844 | if (relsize < 0) | |
3845 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
3846 | ||
3847 | if (relsize > 0) | |
3848 | { | |
3849 | rel_pp = (arelent **) xmalloc (relsize); | |
3850 | rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms); | |
3851 | if (rel_count < 0) | |
3852 | { | |
3853 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
3854 | free (rel_pp); | |
3855 | rel_pp = NULL; | |
3856 | rel_count = 0; | |
3857 | } | |
3858 | else if (rel_count > 1) | |
3859 | /* Sort the relocs by address. */ | |
3860 | qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs); | |
3861 | rel_ppstart = rel_pp; | |
3862 | } | |
3863 | } | |
3864 | } | |
3865 | rel_ppend = PTR_ADD (rel_pp, rel_count); | |
3866 | ||
3867 | if (!bfd_malloc_and_get_section (abfd, section, &data)) | |
3868 | { | |
3869 | non_fatal (_("Reading section %s failed because: %s"), | |
3870 | section->name, bfd_errmsg (bfd_get_error ())); | |
3871 | free (rel_ppstart); | |
3872 | return; | |
3873 | } | |
3874 | ||
3875 | pinfo->buffer = data; | |
3876 | pinfo->buffer_vma = section->vma; | |
3877 | pinfo->buffer_length = datasize; | |
3878 | pinfo->section = section; | |
3879 | ||
3880 | /* Sort the symbols into value and section order. */ | |
3881 | compare_section = section; | |
3882 | if (sorted_symcount > 1) | |
3883 | qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols); | |
3884 | ||
3885 | printf (_("\nDisassembly of section %s:\n"), sanitize_string (section->name)); | |
3886 | ||
3887 | /* Find the nearest symbol forwards from our current position. */ | |
3888 | paux->require_sec = true; | |
3889 | sym = (asymbol *) find_symbol_for_address (section->vma + addr_offset, | |
3890 | (struct disassemble_info *) inf, | |
3891 | &place); | |
3892 | paux->require_sec = false; | |
3893 | ||
3894 | /* PR 9774: If the target used signed addresses then we must make | |
3895 | sure that we sign extend the value that we calculate for 'addr' | |
3896 | in the loop below. */ | |
3897 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
3898 | && (bed = get_elf_backend_data (abfd)) != NULL | |
3899 | && bed->sign_extend_vma) | |
3900 | sign_adjust = (bfd_vma) 1 << (bed->s->arch_size - 1); | |
3901 | ||
3902 | /* Disassemble a block of instructions up to the address associated with | |
3903 | the symbol we have just found. Then print the symbol and find the | |
3904 | next symbol on. Repeat until we have disassembled the entire section | |
3905 | or we have reached the end of the address range we are interested in. */ | |
3906 | do_print = paux->symbol_list == NULL; | |
3907 | loop_until = stop_offset_reached; | |
3908 | ||
3909 | while (addr_offset < stop_offset) | |
3910 | { | |
3911 | bfd_vma addr; | |
3912 | asymbol *nextsym; | |
3913 | bfd_vma nextstop_offset; | |
3914 | bool insns; | |
3915 | ||
3916 | /* Skip over the relocs belonging to addresses below the | |
3917 | start address. */ | |
3918 | while (rel_pp < rel_ppend | |
3919 | && (*rel_pp)->address < rel_offset + addr_offset) | |
3920 | ++rel_pp; | |
3921 | ||
3922 | addr = section->vma + addr_offset; | |
3923 | addr = ((addr & ((sign_adjust << 1) - 1)) ^ sign_adjust) - sign_adjust; | |
3924 | ||
3925 | if (sym != NULL && bfd_asymbol_value (sym) <= addr) | |
3926 | { | |
3927 | int x; | |
3928 | ||
3929 | for (x = place; | |
3930 | (x < sorted_symcount | |
3931 | && (bfd_asymbol_value (sorted_syms[x]) <= addr)); | |
3932 | ++x) | |
3933 | continue; | |
3934 | ||
3935 | pinfo->symbols = sorted_syms + place; | |
3936 | pinfo->num_symbols = x - place; | |
3937 | pinfo->symtab_pos = place; | |
3938 | } | |
3939 | else | |
3940 | { | |
3941 | pinfo->symbols = NULL; | |
3942 | pinfo->num_symbols = 0; | |
3943 | pinfo->symtab_pos = -1; | |
3944 | } | |
3945 | ||
3946 | /* If we are only disassembling from specific symbols, | |
3947 | check to see if we should start or stop displaying. */ | |
3948 | if (sym && paux->symbol_list) | |
3949 | { | |
3950 | if (do_print) | |
3951 | { | |
3952 | /* See if we should stop printing. */ | |
3953 | switch (loop_until) | |
3954 | { | |
3955 | case function_sym: | |
3956 | if (sym->flags & BSF_FUNCTION) | |
3957 | do_print = false; | |
3958 | break; | |
3959 | ||
3960 | case stop_offset_reached: | |
3961 | /* Handled by the while loop. */ | |
3962 | break; | |
3963 | ||
3964 | case next_sym: | |
3965 | if (! bfd_is_local_label (abfd, sym)) | |
3966 | do_print = false; | |
3967 | break; | |
3968 | } | |
3969 | } | |
3970 | ||
3971 | if (!do_print) | |
3972 | { | |
3973 | const char * name = bfd_asymbol_name (sym); | |
3974 | char * alloc = NULL; | |
3975 | ||
3976 | if (do_demangle && name[0] != '\0') | |
3977 | { | |
3978 | /* Demangle the name. */ | |
3979 | alloc = bfd_demangle (abfd, name, demangle_flags); | |
3980 | if (alloc != NULL) | |
3981 | name = alloc; | |
3982 | } | |
3983 | ||
3984 | /* We are not currently printing. Check to see | |
3985 | if the current symbol matches any of the requested symbols. */ | |
3986 | for (const struct symbol_entry *ent = paux->symbol_list; | |
3987 | ent; | |
3988 | ent = ent->next) | |
3989 | if (streq (name, ent->name)) | |
3990 | { | |
3991 | do_print = true; | |
3992 | break; | |
3993 | } | |
3994 | if (do_print | |
3995 | && bfd_asymbol_value (sym) <= addr) | |
3996 | { | |
3997 | do_print = true; | |
3998 | ||
3999 | loop_until = next_sym; | |
4000 | if (sym->flags & BSF_FUNCTION) | |
4001 | { | |
4002 | loop_until = function_sym; | |
4003 | ||
4004 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
4005 | { | |
4006 | bfd_size_type fsize = | |
4007 | ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
4008 | bfd_vma fend = | |
4009 | bfd_asymbol_value (sym) - section->vma + fsize; | |
4010 | if (fend > addr_offset && fend <= stop_offset) | |
4011 | { | |
4012 | /* Sym is a function symbol with a valid | |
4013 | size associated with it. Disassemble | |
4014 | to the end of the function. */ | |
4015 | stop_offset = fend; | |
4016 | loop_until = stop_offset_reached; | |
4017 | } | |
4018 | } | |
4019 | } | |
4020 | } | |
4021 | ||
4022 | free (alloc); | |
4023 | } | |
4024 | } | |
4025 | ||
4026 | if (! prefix_addresses && do_print) | |
4027 | { | |
4028 | pinfo->fprintf_func (pinfo->stream, "\n"); | |
4029 | objdump_print_addr_with_sym (abfd, section, sym, addr, | |
4030 | pinfo, false); | |
4031 | pinfo->fprintf_func (pinfo->stream, ":\n"); | |
4032 | ||
4033 | if (sym != NULL && show_all_symbols) | |
4034 | { | |
4035 | for (++place; place < sorted_symcount; place++) | |
4036 | { | |
4037 | sym = sorted_syms[place]; | |
4038 | ||
4039 | if (bfd_asymbol_value (sym) != addr) | |
4040 | break; | |
4041 | if (! pinfo->symbol_is_valid (sym, pinfo)) | |
4042 | continue; | |
4043 | if (strcmp (bfd_section_name (sym->section), bfd_section_name (section)) != 0) | |
4044 | break; | |
4045 | ||
4046 | objdump_print_addr_with_sym (abfd, section, sym, addr, pinfo, false); | |
4047 | pinfo->fprintf_func (pinfo->stream, ":\n"); | |
4048 | } | |
4049 | } | |
4050 | } | |
4051 | ||
4052 | if (sym != NULL && bfd_asymbol_value (sym) > addr) | |
4053 | nextsym = sym; | |
4054 | else if (sym == NULL) | |
4055 | nextsym = NULL; | |
4056 | else | |
4057 | { | |
4058 | #define is_valid_next_sym(SYM) \ | |
4059 | (strcmp (bfd_section_name ((SYM)->section), bfd_section_name (section)) == 0 \ | |
4060 | && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \ | |
4061 | && pinfo->symbol_is_valid (SYM, pinfo)) | |
4062 | ||
4063 | /* Search forward for the next appropriate symbol in | |
4064 | SECTION. Note that all the symbols are sorted | |
4065 | together into one big array, and that some sections | |
4066 | may have overlapping addresses. */ | |
4067 | while (place < sorted_symcount | |
4068 | && ! is_valid_next_sym (sorted_syms [place])) | |
4069 | ++place; | |
4070 | ||
4071 | if (place >= sorted_symcount) | |
4072 | nextsym = NULL; | |
4073 | else | |
4074 | nextsym = sorted_syms[place]; | |
4075 | } | |
4076 | ||
4077 | if (sym != NULL && bfd_asymbol_value (sym) > addr) | |
4078 | nextstop_offset = bfd_asymbol_value (sym) - section->vma; | |
4079 | else if (nextsym == NULL) | |
4080 | nextstop_offset = stop_offset; | |
4081 | else | |
4082 | nextstop_offset = bfd_asymbol_value (nextsym) - section->vma; | |
4083 | ||
4084 | if (nextstop_offset > stop_offset | |
4085 | || nextstop_offset <= addr_offset) | |
4086 | nextstop_offset = stop_offset; | |
4087 | ||
4088 | /* If a symbol is explicitly marked as being an object | |
4089 | rather than a function, just dump the bytes without | |
4090 | disassembling them. */ | |
4091 | if (disassemble_all | |
4092 | || sym == NULL | |
4093 | || sym->section != section | |
4094 | || bfd_asymbol_value (sym) > addr | |
4095 | || ((sym->flags & BSF_OBJECT) == 0 | |
4096 | && (strstr (bfd_asymbol_name (sym), "gnu_compiled") | |
4097 | == NULL) | |
4098 | && (strstr (bfd_asymbol_name (sym), "gcc2_compiled") | |
4099 | == NULL)) | |
4100 | || (sym->flags & BSF_FUNCTION) != 0) | |
4101 | insns = true; | |
4102 | else | |
4103 | insns = false; | |
4104 | ||
4105 | if (do_print) | |
4106 | { | |
4107 | /* Resolve symbol name. */ | |
4108 | if (visualize_jumps && abfd && sym && sym->name) | |
4109 | { | |
4110 | struct disassemble_info di; | |
4111 | SFILE sf; | |
4112 | ||
4113 | sf.alloc = strlen (sym->name) + 40; | |
4114 | sf.buffer = (char*) xmalloc (sf.alloc); | |
4115 | sf.pos = 0; | |
4116 | disassemble_set_printf | |
4117 | (&di, &sf, (fprintf_ftype) objdump_sprintf, | |
4118 | (fprintf_styled_ftype) objdump_styled_sprintf); | |
4119 | ||
4120 | objdump_print_symname (abfd, &di, sym); | |
4121 | ||
4122 | /* Fetch jump information. */ | |
4123 | detected_jumps = disassemble_jumps (pinfo, paux->disassemble_fn, | |
4124 | addr_offset, nextstop_offset, | |
4125 | rel_offset, rel_pp, rel_ppend); | |
4126 | /* Free symbol name. */ | |
4127 | free (sf.buffer); | |
4128 | } | |
4129 | ||
4130 | /* Add jumps to output. */ | |
4131 | disassemble_bytes (pinfo, paux->disassemble_fn, insns, data, | |
4132 | addr_offset, nextstop_offset, | |
4133 | rel_offset, rel_pp, rel_ppend); | |
4134 | ||
4135 | /* Free jumps. */ | |
4136 | while (detected_jumps) | |
4137 | { | |
4138 | detected_jumps = jump_info_free (detected_jumps); | |
4139 | } | |
4140 | } | |
4141 | ||
4142 | addr_offset = nextstop_offset; | |
4143 | sym = nextsym; | |
4144 | } | |
4145 | ||
4146 | free (data); | |
4147 | free (rel_ppstart); | |
4148 | } | |
4149 | ||
4150 | /* Disassemble the contents of an object file. */ | |
4151 | ||
4152 | static void | |
4153 | disassemble_data (bfd *abfd) | |
4154 | { | |
4155 | struct disassemble_info disasm_info; | |
4156 | struct objdump_disasm_info aux; | |
4157 | long i; | |
4158 | ||
4159 | print_files = NULL; | |
4160 | prev_functionname = NULL; | |
4161 | prev_line = -1; | |
4162 | prev_discriminator = 0; | |
4163 | ||
4164 | /* We make a copy of syms to sort. We don't want to sort syms | |
4165 | because that will screw up the relocs. */ | |
4166 | sorted_symcount = symcount ? symcount : dynsymcount; | |
4167 | sorted_syms = (asymbol **) xmalloc ((sorted_symcount + synthcount) | |
4168 | * sizeof (asymbol *)); | |
4169 | if (sorted_symcount != 0) | |
4170 | { | |
4171 | memcpy (sorted_syms, symcount ? syms : dynsyms, | |
4172 | sorted_symcount * sizeof (asymbol *)); | |
4173 | ||
4174 | sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount); | |
4175 | } | |
4176 | ||
4177 | for (i = 0; i < synthcount; ++i) | |
4178 | { | |
4179 | sorted_syms[sorted_symcount] = synthsyms + i; | |
4180 | ++sorted_symcount; | |
4181 | } | |
4182 | ||
4183 | init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf, | |
4184 | (fprintf_styled_ftype) fprintf_styled); | |
4185 | disasm_info.application_data = (void *) &aux; | |
4186 | aux.abfd = abfd; | |
4187 | aux.require_sec = false; | |
4188 | disasm_info.dynrelbuf = NULL; | |
4189 | disasm_info.dynrelcount = 0; | |
4190 | aux.reloc = NULL; | |
4191 | aux.symbol_list = disasm_sym_list; | |
4192 | ||
4193 | disasm_info.print_address_func = objdump_print_address; | |
4194 | disasm_info.symbol_at_address_func = objdump_symbol_at_address; | |
4195 | ||
4196 | if (machine != NULL) | |
4197 | { | |
4198 | const bfd_arch_info_type *inf = bfd_scan_arch (machine); | |
4199 | ||
4200 | if (inf == NULL) | |
4201 | { | |
4202 | non_fatal (_("can't use supplied machine %s"), machine); | |
4203 | exit_status = 1; | |
4204 | } | |
4205 | else | |
4206 | abfd->arch_info = inf; | |
4207 | } | |
4208 | ||
4209 | const struct bfd_target *old_xvec = NULL; | |
4210 | if (endian != BFD_ENDIAN_UNKNOWN) | |
4211 | { | |
4212 | struct bfd_target *xvec = xmalloc (sizeof (*xvec)); | |
4213 | old_xvec = abfd->xvec; | |
4214 | memcpy (xvec, old_xvec, sizeof (*xvec)); | |
4215 | xvec->byteorder = endian; | |
4216 | abfd->xvec = xvec; | |
4217 | } | |
4218 | ||
4219 | /* Use libopcodes to locate a suitable disassembler. */ | |
4220 | aux.disassemble_fn = disassembler (bfd_get_arch (abfd), | |
4221 | bfd_big_endian (abfd), | |
4222 | bfd_get_mach (abfd), abfd); | |
4223 | if (!aux.disassemble_fn) | |
4224 | { | |
4225 | non_fatal (_("can't disassemble for architecture %s\n"), | |
4226 | bfd_printable_arch_mach (bfd_get_arch (abfd), 0)); | |
4227 | exit_status = 1; | |
4228 | goto out; | |
4229 | } | |
4230 | ||
4231 | disasm_info.flavour = bfd_get_flavour (abfd); | |
4232 | disasm_info.arch = bfd_get_arch (abfd); | |
4233 | disasm_info.mach = bfd_get_mach (abfd); | |
4234 | disasm_info.disassembler_options = disassembler_options; | |
4235 | disasm_info.octets_per_byte = bfd_octets_per_byte (abfd, NULL); | |
4236 | disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES; | |
4237 | disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END; | |
4238 | disasm_info.disassembler_needs_relocs = false; | |
4239 | ||
4240 | if (bfd_big_endian (abfd)) | |
4241 | disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG; | |
4242 | else if (bfd_little_endian (abfd)) | |
4243 | disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE; | |
4244 | else | |
4245 | /* ??? Aborting here seems too drastic. We could default to big or little | |
4246 | instead. */ | |
4247 | disasm_info.endian = BFD_ENDIAN_UNKNOWN; | |
4248 | ||
4249 | disasm_info.endian_code = disasm_info.endian; | |
4250 | ||
4251 | /* Allow the target to customize the info structure. */ | |
4252 | disassemble_init_for_target (& disasm_info); | |
4253 | ||
4254 | /* Pre-load the dynamic relocs as we may need them during the disassembly. */ | |
4255 | long relsize = bfd_get_dynamic_reloc_upper_bound (abfd); | |
4256 | ||
4257 | if (relsize > 0) | |
4258 | { | |
4259 | disasm_info.dynrelbuf = (arelent **) xmalloc (relsize); | |
4260 | disasm_info.dynrelcount | |
4261 | = bfd_canonicalize_dynamic_reloc (abfd, disasm_info.dynrelbuf, dynsyms); | |
4262 | if (disasm_info.dynrelcount < 0) | |
4263 | { | |
4264 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
4265 | free (disasm_info.dynrelbuf); | |
4266 | disasm_info.dynrelbuf = NULL; | |
4267 | disasm_info.dynrelcount = 0; | |
4268 | } | |
4269 | else if (disasm_info.dynrelcount > 1) | |
4270 | /* Sort the relocs by address. */ | |
4271 | qsort (disasm_info.dynrelbuf, disasm_info.dynrelcount, | |
4272 | sizeof (arelent *), compare_relocs); | |
4273 | } | |
4274 | ||
4275 | disasm_info.symtab = sorted_syms; | |
4276 | disasm_info.symtab_size = sorted_symcount; | |
4277 | ||
4278 | bfd_map_over_sections (abfd, disassemble_section, & disasm_info); | |
4279 | ||
4280 | free (disasm_info.dynrelbuf); | |
4281 | disasm_info.dynrelbuf = NULL; | |
4282 | disassemble_free_target (&disasm_info); | |
4283 | out: | |
4284 | free (sorted_syms); | |
4285 | sorted_syms = NULL; | |
4286 | if (old_xvec) | |
4287 | { | |
4288 | free ((void *) abfd->xvec); | |
4289 | abfd->xvec = old_xvec; | |
4290 | } | |
4291 | } | |
4292 | \f | |
4293 | static bool | |
4294 | load_specific_debug_section (enum dwarf_section_display_enum debug, | |
4295 | asection *sec, void *file) | |
4296 | { | |
4297 | struct dwarf_section *section = &debug_displays [debug].section; | |
4298 | bfd *abfd = (bfd *) file; | |
4299 | bfd_byte *contents; | |
4300 | bfd_size_type amt; | |
4301 | size_t alloced; | |
4302 | bool ret; | |
4303 | ||
4304 | if (section->start != NULL) | |
4305 | { | |
4306 | /* If it is already loaded, do nothing. */ | |
4307 | if (streq (section->filename, bfd_get_filename (abfd))) | |
4308 | return true; | |
4309 | free (section->start); | |
4310 | section->start = NULL; | |
4311 | } | |
4312 | ||
4313 | section->filename = bfd_get_filename (abfd); | |
4314 | section->reloc_info = NULL; | |
4315 | section->num_relocs = 0; | |
4316 | section->address = bfd_section_vma (sec); | |
4317 | section->size = bfd_section_size (sec); | |
4318 | /* PR 24360: On 32-bit hosts sizeof (size_t) < sizeof (bfd_size_type). */ | |
4319 | alloced = amt = section->size + 1; | |
4320 | if (alloced != amt | |
4321 | || alloced == 0 | |
4322 | || bfd_section_size_insane (abfd, sec)) | |
4323 | { | |
4324 | printf (_("\nSection '%s' has an invalid size: %#" PRIx64 ".\n"), | |
4325 | sanitize_string (section->name), | |
4326 | section->size); | |
4327 | free_debug_section (debug); | |
4328 | return false; | |
4329 | } | |
4330 | ||
4331 | ret = false; | |
4332 | if ((sec->flags & SEC_HAS_CONTENTS) != 0) | |
4333 | { | |
4334 | section->start = contents = xmalloc (alloced); | |
4335 | /* Ensure any string section has a terminating NUL. */ | |
4336 | section->start[section->size] = 0; | |
4337 | ||
4338 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
4339 | && debug_displays [debug].relocate) | |
4340 | { | |
4341 | ret = bfd_simple_get_relocated_section_contents (abfd, | |
4342 | sec, | |
4343 | section->start, | |
4344 | syms) != NULL; | |
4345 | if (ret) | |
4346 | { | |
4347 | long reloc_size = bfd_get_reloc_upper_bound (abfd, sec); | |
4348 | ||
4349 | if (reloc_size > 0) | |
4350 | { | |
4351 | long reloc_count; | |
4352 | arelent **relocs; | |
4353 | ||
4354 | relocs = (arelent **) xmalloc (reloc_size); | |
4355 | ||
4356 | reloc_count = bfd_canonicalize_reloc (abfd, sec, relocs, syms); | |
4357 | if (reloc_count <= 0) | |
4358 | free (relocs); | |
4359 | else | |
4360 | { | |
4361 | section->reloc_info = relocs; | |
4362 | section->num_relocs = reloc_count; | |
4363 | } | |
4364 | } | |
4365 | } | |
4366 | } | |
4367 | else | |
4368 | ret = bfd_get_full_section_contents (abfd, sec, &contents); | |
4369 | } | |
4370 | ||
4371 | if (!ret) | |
4372 | { | |
4373 | printf (_("\nCan't get contents for section '%s'.\n"), | |
4374 | sanitize_string (section->name)); | |
4375 | free_debug_section (debug); | |
4376 | return false; | |
4377 | } | |
4378 | ||
4379 | return true; | |
4380 | } | |
4381 | ||
4382 | bool | |
4383 | reloc_at (struct dwarf_section * dsec, uint64_t offset) | |
4384 | { | |
4385 | arelent ** relocs; | |
4386 | arelent * rp; | |
4387 | ||
4388 | if (dsec == NULL || dsec->reloc_info == NULL) | |
4389 | return false; | |
4390 | ||
4391 | relocs = (arelent **) dsec->reloc_info; | |
4392 | ||
4393 | for (; (rp = * relocs) != NULL; ++ relocs) | |
4394 | if (rp->address == offset) | |
4395 | return true; | |
4396 | ||
4397 | return false; | |
4398 | } | |
4399 | ||
4400 | bool | |
4401 | load_debug_section (enum dwarf_section_display_enum debug, void *file) | |
4402 | { | |
4403 | struct dwarf_section *section = &debug_displays [debug].section; | |
4404 | bfd *abfd = (bfd *) file; | |
4405 | asection *sec; | |
4406 | const char *name; | |
4407 | ||
4408 | if (!dump_any_debugging) | |
4409 | return false; | |
4410 | ||
4411 | /* If it is already loaded, do nothing. */ | |
4412 | if (section->start != NULL) | |
4413 | { | |
4414 | if (streq (section->filename, bfd_get_filename (abfd))) | |
4415 | return true; | |
4416 | } | |
4417 | /* Locate the debug section. */ | |
4418 | name = section->uncompressed_name; | |
4419 | sec = bfd_get_section_by_name (abfd, name); | |
4420 | if (sec == NULL) | |
4421 | { | |
4422 | name = section->compressed_name; | |
4423 | if (*name) | |
4424 | sec = bfd_get_section_by_name (abfd, name); | |
4425 | } | |
4426 | if (sec == NULL) | |
4427 | { | |
4428 | name = section->xcoff_name; | |
4429 | if (*name) | |
4430 | sec = bfd_get_section_by_name (abfd, name); | |
4431 | } | |
4432 | if (sec == NULL) | |
4433 | return false; | |
4434 | ||
4435 | section->name = name; | |
4436 | return load_specific_debug_section (debug, sec, file); | |
4437 | } | |
4438 | ||
4439 | void | |
4440 | free_debug_section (enum dwarf_section_display_enum debug) | |
4441 | { | |
4442 | struct dwarf_section *section = &debug_displays [debug].section; | |
4443 | ||
4444 | free ((char *) section->start); | |
4445 | section->start = NULL; | |
4446 | section->address = 0; | |
4447 | section->size = 0; | |
4448 | free ((char*) section->reloc_info); | |
4449 | section->reloc_info = NULL; | |
4450 | section->num_relocs= 0; | |
4451 | } | |
4452 | ||
4453 | void | |
4454 | close_debug_file (void * file) | |
4455 | { | |
4456 | bfd * abfd = (bfd *) file; | |
4457 | ||
4458 | bfd_close (abfd); | |
4459 | } | |
4460 | ||
4461 | void * | |
4462 | open_debug_file (const char * pathname) | |
4463 | { | |
4464 | bfd * data; | |
4465 | ||
4466 | data = bfd_openr (pathname, NULL); | |
4467 | if (data == NULL) | |
4468 | return NULL; | |
4469 | ||
4470 | /* Decompress sections unless dumping the section contents. */ | |
4471 | if (!dump_section_contents || decompressed_dumps) | |
4472 | data->flags |= BFD_DECOMPRESS; | |
4473 | ||
4474 | if (! bfd_check_format (data, bfd_object)) | |
4475 | return NULL; | |
4476 | ||
4477 | return data; | |
4478 | } | |
4479 | ||
4480 | static void | |
4481 | dump_dwarf_section (bfd *abfd, asection *section, | |
4482 | void *arg) | |
4483 | { | |
4484 | const char *name = bfd_section_name (section); | |
4485 | const char *match; | |
4486 | int i; | |
4487 | bool is_mainfile = *(bool *) arg; | |
4488 | ||
4489 | if (*name == 0) | |
4490 | return; | |
4491 | ||
4492 | if (!is_mainfile && !process_links | |
4493 | && (section->flags & SEC_DEBUGGING) == 0) | |
4494 | return; | |
4495 | ||
4496 | if (startswith (name, ".gnu.linkonce.wi.")) | |
4497 | match = ".debug_info"; | |
4498 | else | |
4499 | match = name; | |
4500 | ||
4501 | for (i = 0; i < max; i++) | |
4502 | if ((strcmp (debug_displays [i].section.uncompressed_name, match) == 0 | |
4503 | || strcmp (debug_displays [i].section.compressed_name, match) == 0 | |
4504 | || strcmp (debug_displays [i].section.xcoff_name, match) == 0) | |
4505 | && debug_displays [i].enabled != NULL | |
4506 | && *debug_displays [i].enabled) | |
4507 | { | |
4508 | struct dwarf_section *sec = &debug_displays [i].section; | |
4509 | ||
4510 | if (strcmp (sec->uncompressed_name, match) == 0) | |
4511 | sec->name = sec->uncompressed_name; | |
4512 | else if (strcmp (sec->compressed_name, match) == 0) | |
4513 | sec->name = sec->compressed_name; | |
4514 | else | |
4515 | sec->name = sec->xcoff_name; | |
4516 | if (load_specific_debug_section ((enum dwarf_section_display_enum) i, | |
4517 | section, abfd)) | |
4518 | { | |
4519 | debug_displays [i].display (sec, abfd); | |
4520 | ||
4521 | if (i != info && i != abbrev) | |
4522 | free_debug_section ((enum dwarf_section_display_enum) i); | |
4523 | } | |
4524 | break; | |
4525 | } | |
4526 | } | |
4527 | ||
4528 | /* Dump the dwarf debugging information. */ | |
4529 | ||
4530 | static void | |
4531 | dump_dwarf (bfd *abfd, bool is_mainfile) | |
4532 | { | |
4533 | /* The byte_get pointer should have been set at the start of dump_bfd(). */ | |
4534 | if (byte_get == NULL) | |
4535 | { | |
4536 | warn (_("File %s does not contain any dwarf debug information\n"), | |
4537 | bfd_get_filename (abfd)); | |
4538 | return; | |
4539 | } | |
4540 | ||
4541 | switch (bfd_get_arch (abfd)) | |
4542 | { | |
4543 | case bfd_arch_s12z: | |
4544 | /* S12Z has a 24 bit address space. But the only known | |
4545 | producer of dwarf_info encodes addresses into 32 bits. */ | |
4546 | eh_addr_size = 4; | |
4547 | break; | |
4548 | ||
4549 | default: | |
4550 | eh_addr_size = bfd_arch_bits_per_address (abfd) / 8; | |
4551 | break; | |
4552 | } | |
4553 | ||
4554 | init_dwarf_regnames_by_bfd_arch_and_mach (bfd_get_arch (abfd), | |
4555 | bfd_get_mach (abfd)); | |
4556 | ||
4557 | bfd_map_over_sections (abfd, dump_dwarf_section, (void *) &is_mainfile); | |
4558 | } | |
4559 | \f | |
4560 | /* Read ABFD's section SECT_NAME into *CONTENTS, and return a pointer to | |
4561 | the section. Return NULL on failure. */ | |
4562 | ||
4563 | static asection * | |
4564 | read_section (bfd *abfd, const char *sect_name, bfd_byte **contents) | |
4565 | { | |
4566 | asection *sec; | |
4567 | ||
4568 | *contents = NULL; | |
4569 | sec = bfd_get_section_by_name (abfd, sect_name); | |
4570 | if (sec == NULL) | |
4571 | { | |
4572 | printf (_("No %s section present\n\n"), sanitize_string (sect_name)); | |
4573 | return NULL; | |
4574 | } | |
4575 | ||
4576 | if ((bfd_section_flags (sec) & SEC_HAS_CONTENTS) == 0) | |
4577 | bfd_set_error (bfd_error_no_contents); | |
4578 | else if (bfd_malloc_and_get_section (abfd, sec, contents)) | |
4579 | return sec; | |
4580 | ||
4581 | non_fatal (_("reading %s section of %s failed: %s"), | |
4582 | sect_name, bfd_get_filename (abfd), | |
4583 | bfd_errmsg (bfd_get_error ())); | |
4584 | exit_status = 1; | |
4585 | return NULL; | |
4586 | } | |
4587 | ||
4588 | /* Stabs entries use a 12 byte format: | |
4589 | 4 byte string table index | |
4590 | 1 byte stab type | |
4591 | 1 byte stab other field | |
4592 | 2 byte stab desc field | |
4593 | 4 byte stab value | |
4594 | FIXME: This will have to change for a 64 bit object format. */ | |
4595 | ||
4596 | #define STRDXOFF (0) | |
4597 | #define TYPEOFF (4) | |
4598 | #define OTHEROFF (5) | |
4599 | #define DESCOFF (6) | |
4600 | #define VALOFF (8) | |
4601 | #define STABSIZE (12) | |
4602 | ||
4603 | /* Print ABFD's stabs section STABSECT_NAME (in `stabs'), | |
4604 | using string table section STRSECT_NAME (in `strtab'). */ | |
4605 | ||
4606 | static void | |
4607 | print_section_stabs (bfd *abfd, | |
4608 | const char *stabsect_name, | |
4609 | unsigned *string_offset_ptr) | |
4610 | { | |
4611 | int i; | |
4612 | unsigned file_string_table_offset = 0; | |
4613 | unsigned next_file_string_table_offset = *string_offset_ptr; | |
4614 | bfd_byte *stabp, *stabs_end; | |
4615 | ||
4616 | stabp = stabs; | |
4617 | stabs_end = PTR_ADD (stabp, stab_size); | |
4618 | ||
4619 | printf (_("Contents of %s section:\n\n"), sanitize_string (stabsect_name)); | |
4620 | printf ("Symnum n_type n_othr n_desc n_value n_strx String\n"); | |
4621 | ||
4622 | /* Loop through all symbols and print them. | |
4623 | ||
4624 | We start the index at -1 because there is a dummy symbol on | |
4625 | the front of stabs-in-{coff,elf} sections that supplies sizes. */ | |
4626 | for (i = -1; (size_t) (stabs_end - stabp) >= STABSIZE; stabp += STABSIZE, i++) | |
4627 | { | |
4628 | const char *name; | |
4629 | unsigned long strx; | |
4630 | unsigned char type, other; | |
4631 | unsigned short desc; | |
4632 | bfd_vma value; | |
4633 | ||
4634 | strx = bfd_h_get_32 (abfd, stabp + STRDXOFF); | |
4635 | type = bfd_h_get_8 (abfd, stabp + TYPEOFF); | |
4636 | other = bfd_h_get_8 (abfd, stabp + OTHEROFF); | |
4637 | desc = bfd_h_get_16 (abfd, stabp + DESCOFF); | |
4638 | value = bfd_h_get_32 (abfd, stabp + VALOFF); | |
4639 | ||
4640 | printf ("\n%-6d ", i); | |
4641 | /* Either print the stab name, or, if unnamed, print its number | |
4642 | again (makes consistent formatting for tools like awk). */ | |
4643 | name = bfd_get_stab_name (type); | |
4644 | if (name != NULL) | |
4645 | printf ("%-6s", sanitize_string (name)); | |
4646 | else if (type == N_UNDF) | |
4647 | printf ("HdrSym"); | |
4648 | else | |
4649 | printf ("%-6d", type); | |
4650 | printf (" %-6d %-6d ", other, desc); | |
4651 | bfd_printf_vma (abfd, value); | |
4652 | printf (" %-6lu", strx); | |
4653 | ||
4654 | /* Symbols with type == 0 (N_UNDF) specify the length of the | |
4655 | string table associated with this file. We use that info | |
4656 | to know how to relocate the *next* file's string table indices. */ | |
4657 | if (type == N_UNDF) | |
4658 | { | |
4659 | file_string_table_offset = next_file_string_table_offset; | |
4660 | next_file_string_table_offset += value; | |
4661 | } | |
4662 | else | |
4663 | { | |
4664 | bfd_size_type amt = strx + file_string_table_offset; | |
4665 | ||
4666 | /* Using the (possibly updated) string table offset, print the | |
4667 | string (if any) associated with this symbol. */ | |
4668 | if (amt < stabstr_size) | |
4669 | /* PR 17512: file: 079-79389-0.001:0.1. | |
4670 | FIXME: May need to sanitize this string before displaying. */ | |
4671 | printf (" %.*s", (int)(stabstr_size - amt), strtab + amt); | |
4672 | else | |
4673 | printf (" *"); | |
4674 | } | |
4675 | } | |
4676 | printf ("\n\n"); | |
4677 | *string_offset_ptr = next_file_string_table_offset; | |
4678 | } | |
4679 | ||
4680 | typedef struct | |
4681 | { | |
4682 | const char * section_name; | |
4683 | const char * string_section_name; | |
4684 | unsigned string_offset; | |
4685 | } | |
4686 | stab_section_names; | |
4687 | ||
4688 | static void | |
4689 | find_stabs_section (bfd *abfd, asection *section, void *names) | |
4690 | { | |
4691 | int len; | |
4692 | stab_section_names * sought = (stab_section_names *) names; | |
4693 | ||
4694 | /* Check for section names for which stabsect_name is a prefix, to | |
4695 | handle .stab.N, etc. */ | |
4696 | len = strlen (sought->section_name); | |
4697 | ||
4698 | /* If the prefix matches, and the files section name ends with a | |
4699 | nul or a digit, then we match. I.e., we want either an exact | |
4700 | match or a section followed by a number. */ | |
4701 | if (strncmp (sought->section_name, section->name, len) == 0 | |
4702 | && (section->name[len] == 0 | |
4703 | || (section->name[len] == '.' && ISDIGIT (section->name[len + 1])))) | |
4704 | { | |
4705 | asection *s; | |
4706 | if (strtab == NULL) | |
4707 | { | |
4708 | s = read_section (abfd, sought->string_section_name, &strtab); | |
4709 | if (s != NULL) | |
4710 | stabstr_size = bfd_section_size (s); | |
4711 | } | |
4712 | ||
4713 | if (strtab) | |
4714 | { | |
4715 | s = read_section (abfd, section->name, &stabs); | |
4716 | if (s != NULL) | |
4717 | { | |
4718 | stab_size = bfd_section_size (s); | |
4719 | print_section_stabs (abfd, section->name, &sought->string_offset); | |
4720 | free (stabs); | |
4721 | } | |
4722 | } | |
4723 | } | |
4724 | } | |
4725 | ||
4726 | static void | |
4727 | dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name) | |
4728 | { | |
4729 | stab_section_names s; | |
4730 | ||
4731 | s.section_name = stabsect_name; | |
4732 | s.string_section_name = strsect_name; | |
4733 | s.string_offset = 0; | |
4734 | ||
4735 | bfd_map_over_sections (abfd, find_stabs_section, & s); | |
4736 | ||
4737 | free (strtab); | |
4738 | strtab = NULL; | |
4739 | } | |
4740 | ||
4741 | /* Dump the any sections containing stabs debugging information. */ | |
4742 | ||
4743 | static void | |
4744 | dump_stabs (bfd *abfd) | |
4745 | { | |
4746 | dump_stabs_section (abfd, ".stab", ".stabstr"); | |
4747 | dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr"); | |
4748 | dump_stabs_section (abfd, ".stab.index", ".stab.indexstr"); | |
4749 | ||
4750 | /* For Darwin. */ | |
4751 | dump_stabs_section (abfd, "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr"); | |
4752 | ||
4753 | dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$"); | |
4754 | } | |
4755 | \f | |
4756 | static void | |
4757 | dump_bfd_header (bfd *abfd) | |
4758 | { | |
4759 | char *comma = ""; | |
4760 | ||
4761 | printf (_("architecture: %s, "), | |
4762 | bfd_printable_arch_mach (bfd_get_arch (abfd), | |
4763 | bfd_get_mach (abfd))); | |
4764 | printf (_("flags 0x%08x:\n"), abfd->flags & ~BFD_FLAGS_FOR_BFD_USE_MASK); | |
4765 | ||
4766 | #define PF(x, y) if (abfd->flags & x) {printf ("%s%s", comma, y); comma=", ";} | |
4767 | PF (HAS_RELOC, "HAS_RELOC"); | |
4768 | PF (EXEC_P, "EXEC_P"); | |
4769 | PF (HAS_LINENO, "HAS_LINENO"); | |
4770 | PF (HAS_DEBUG, "HAS_DEBUG"); | |
4771 | PF (HAS_SYMS, "HAS_SYMS"); | |
4772 | PF (HAS_LOCALS, "HAS_LOCALS"); | |
4773 | PF (DYNAMIC, "DYNAMIC"); | |
4774 | PF (WP_TEXT, "WP_TEXT"); | |
4775 | PF (D_PAGED, "D_PAGED"); | |
4776 | PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE"); | |
4777 | printf (_("\nstart address 0x")); | |
4778 | bfd_printf_vma (abfd, abfd->start_address); | |
4779 | printf ("\n"); | |
4780 | } | |
4781 | \f | |
4782 | ||
4783 | #ifdef ENABLE_LIBCTF | |
4784 | /* Formatting callback function passed to ctf_dump. Returns either the pointer | |
4785 | it is passed, or a pointer to newly-allocated storage, in which case | |
4786 | dump_ctf() will free it when it no longer needs it. */ | |
4787 | ||
4788 | static char * | |
4789 | dump_ctf_indent_lines (ctf_sect_names_t sect ATTRIBUTE_UNUSED, | |
4790 | char *s, void *arg) | |
4791 | { | |
4792 | const char *blanks = arg; | |
4793 | return xasprintf ("%s%s", blanks, s); | |
4794 | } | |
4795 | ||
4796 | /* Make a ctfsect suitable for ctf_bfdopen_ctfsect(). */ | |
4797 | static ctf_sect_t | |
4798 | make_ctfsect (const char *name, bfd_byte *data, | |
4799 | bfd_size_type size) | |
4800 | { | |
4801 | ctf_sect_t ctfsect; | |
4802 | ||
4803 | ctfsect.cts_name = name; | |
4804 | ctfsect.cts_entsize = 1; | |
4805 | ctfsect.cts_size = size; | |
4806 | ctfsect.cts_data = data; | |
4807 | ||
4808 | return ctfsect; | |
4809 | } | |
4810 | ||
4811 | /* Dump CTF errors/warnings. */ | |
4812 | static void | |
4813 | dump_ctf_errs (ctf_dict_t *fp) | |
4814 | { | |
4815 | ctf_next_t *it = NULL; | |
4816 | char *errtext; | |
4817 | int is_warning; | |
4818 | int err; | |
4819 | ||
4820 | /* Dump accumulated errors and warnings. */ | |
4821 | while ((errtext = ctf_errwarning_next (fp, &it, &is_warning, &err)) != NULL) | |
4822 | { | |
4823 | non_fatal (_("%s: %s"), is_warning ? _("warning"): _("error"), | |
4824 | errtext); | |
4825 | free (errtext); | |
4826 | } | |
4827 | if (err != ECTF_NEXT_END) | |
4828 | { | |
4829 | non_fatal (_("CTF error: cannot get CTF errors: `%s'"), | |
4830 | ctf_errmsg (err)); | |
4831 | } | |
4832 | } | |
4833 | ||
4834 | /* Dump one CTF archive member. */ | |
4835 | ||
4836 | static void | |
4837 | dump_ctf_archive_member (ctf_dict_t *ctf, const char *name, ctf_dict_t *parent, | |
4838 | size_t member) | |
4839 | { | |
4840 | const char *things[] = {"Header", "Labels", "Data objects", | |
4841 | "Function objects", "Variables", "Types", "Strings", | |
4842 | ""}; | |
4843 | const char **thing; | |
4844 | size_t i; | |
4845 | ||
4846 | /* Don't print out the name of the default-named archive member if it appears | |
4847 | first in the list. The name .ctf appears everywhere, even for things that | |
4848 | aren't really archives, so printing it out is liable to be confusing; also, | |
4849 | the common case by far is for only one archive member to exist, and hiding | |
4850 | it in that case seems worthwhile. */ | |
4851 | ||
4852 | if (strcmp (name, ".ctf") != 0 || member != 0) | |
4853 | printf (_("\nCTF archive member: %s:\n"), sanitize_string (name)); | |
4854 | ||
4855 | if (ctf_parent_name (ctf) != NULL) | |
4856 | ctf_import (ctf, parent); | |
4857 | ||
4858 | for (i = 0, thing = things; *thing[0]; thing++, i++) | |
4859 | { | |
4860 | ctf_dump_state_t *s = NULL; | |
4861 | char *item; | |
4862 | ||
4863 | printf ("\n %s:\n", *thing); | |
4864 | while ((item = ctf_dump (ctf, &s, i, dump_ctf_indent_lines, | |
4865 | (void *) " ")) != NULL) | |
4866 | { | |
4867 | printf ("%s\n", item); | |
4868 | free (item); | |
4869 | } | |
4870 | ||
4871 | if (ctf_errno (ctf)) | |
4872 | { | |
4873 | non_fatal (_("Iteration failed: %s, %s"), *thing, | |
4874 | ctf_errmsg (ctf_errno (ctf))); | |
4875 | break; | |
4876 | } | |
4877 | } | |
4878 | ||
4879 | dump_ctf_errs (ctf); | |
4880 | } | |
4881 | ||
4882 | /* Dump the CTF debugging information. */ | |
4883 | ||
4884 | static void | |
4885 | dump_ctf (bfd *abfd, const char *sect_name, const char *parent_name, | |
4886 | const char *parent_sect_name) | |
4887 | { | |
4888 | asection *sec, *psec = NULL; | |
4889 | ctf_archive_t *ctfa; | |
4890 | ctf_archive_t *ctfpa = NULL; | |
4891 | bfd_byte *ctfdata = NULL; | |
4892 | bfd_byte *ctfpdata = NULL; | |
4893 | ctf_sect_t ctfsect; | |
4894 | ctf_dict_t *parent; | |
4895 | ctf_dict_t *fp; | |
4896 | ctf_next_t *i = NULL; | |
4897 | const char *name; | |
4898 | size_t member = 0; | |
4899 | int err; | |
4900 | ||
4901 | if (sect_name == NULL) | |
4902 | sect_name = ".ctf"; | |
4903 | ||
4904 | sec = read_section (abfd, sect_name, &ctfdata); | |
4905 | if (sec == NULL) | |
4906 | { | |
4907 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
4908 | return; | |
4909 | } | |
4910 | ||
4911 | /* Load the CTF file and dump it. Preload the parent dict, since it will | |
4912 | need to be imported into every child in turn. The parent dict may come | |
4913 | from a different section entirely. */ | |
4914 | ||
4915 | ctfsect = make_ctfsect (sect_name, ctfdata, bfd_section_size (sec)); | |
4916 | if ((ctfa = ctf_bfdopen_ctfsect (abfd, &ctfsect, &err)) == NULL) | |
4917 | { | |
4918 | dump_ctf_errs (NULL); | |
4919 | non_fatal (_("CTF open failure: %s"), ctf_errmsg (err)); | |
4920 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
4921 | free (ctfdata); | |
4922 | return; | |
4923 | } | |
4924 | ||
4925 | if (parent_sect_name) | |
4926 | { | |
4927 | psec = read_section (abfd, parent_sect_name, &ctfpdata); | |
4928 | if (sec == NULL) | |
4929 | { | |
4930 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
4931 | free (ctfdata); | |
4932 | return; | |
4933 | } | |
4934 | ||
4935 | ctfsect = make_ctfsect (parent_sect_name, ctfpdata, bfd_section_size (psec)); | |
4936 | if ((ctfpa = ctf_bfdopen_ctfsect (abfd, &ctfsect, &err)) == NULL) | |
4937 | { | |
4938 | dump_ctf_errs (NULL); | |
4939 | non_fatal (_("CTF open failure: %s"), ctf_errmsg (err)); | |
4940 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
4941 | free (ctfdata); | |
4942 | free (ctfpdata); | |
4943 | return; | |
4944 | } | |
4945 | } | |
4946 | else | |
4947 | ctfpa = ctfa; | |
4948 | ||
4949 | if ((parent = ctf_dict_open (ctfpa, parent_name, &err)) == NULL) | |
4950 | { | |
4951 | dump_ctf_errs (NULL); | |
4952 | non_fatal (_("CTF open failure: %s"), ctf_errmsg (err)); | |
4953 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
4954 | ctf_close (ctfa); | |
4955 | free (ctfdata); | |
4956 | free (ctfpdata); | |
4957 | return; | |
4958 | } | |
4959 | ||
4960 | printf (_("Contents of CTF section %s:\n"), sanitize_string (sect_name)); | |
4961 | ||
4962 | while ((fp = ctf_archive_next (ctfa, &i, &name, 0, &err)) != NULL) | |
4963 | { | |
4964 | dump_ctf_archive_member (fp, name, parent, member++); | |
4965 | ctf_dict_close (fp); | |
4966 | } | |
4967 | if (err != ECTF_NEXT_END) | |
4968 | { | |
4969 | dump_ctf_errs (NULL); | |
4970 | non_fatal (_("CTF archive member open failure: %s"), ctf_errmsg (err)); | |
4971 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
4972 | } | |
4973 | ctf_dict_close (parent); | |
4974 | ctf_close (ctfa); | |
4975 | free (ctfdata); | |
4976 | if (parent_sect_name) | |
4977 | { | |
4978 | ctf_close (ctfpa); | |
4979 | free (ctfpdata); | |
4980 | } | |
4981 | } | |
4982 | #else | |
4983 | static void | |
4984 | dump_ctf (bfd *abfd ATTRIBUTE_UNUSED, const char *sect_name ATTRIBUTE_UNUSED, | |
4985 | const char *parent_name ATTRIBUTE_UNUSED, | |
4986 | const char *parent_sect_name ATTRIBUTE_UNUSED) {} | |
4987 | #endif | |
4988 | ||
4989 | static void | |
4990 | dump_section_sframe (bfd *abfd ATTRIBUTE_UNUSED, | |
4991 | const char * sect_name) | |
4992 | { | |
4993 | asection *sec; | |
4994 | sframe_decoder_ctx *sfd_ctx = NULL; | |
4995 | bfd_size_type sf_size; | |
4996 | bfd_byte *sframe_data; | |
4997 | bfd_vma sf_vma; | |
4998 | int err = 0; | |
4999 | ||
5000 | if (sect_name == NULL) | |
5001 | sect_name = ".sframe"; | |
5002 | ||
5003 | sec = read_section (abfd, sect_name, &sframe_data); | |
5004 | if (sec == NULL) | |
5005 | { | |
5006 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
5007 | return; | |
5008 | } | |
5009 | sf_size = bfd_section_size (sec); | |
5010 | sf_vma = bfd_section_vma (sec); | |
5011 | ||
5012 | /* Decode the contents of the section. */ | |
5013 | sfd_ctx = sframe_decode ((const char*)sframe_data, sf_size, &err); | |
5014 | if (!sfd_ctx) | |
5015 | { | |
5016 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
5017 | free (sframe_data); | |
5018 | return; | |
5019 | } | |
5020 | ||
5021 | printf (_("Contents of the SFrame section %s:"), | |
5022 | sanitize_string (sect_name)); | |
5023 | /* Dump the contents as text. */ | |
5024 | dump_sframe (sfd_ctx, sf_vma); | |
5025 | ||
5026 | sframe_decoder_free (&sfd_ctx); | |
5027 | free (sframe_data); | |
5028 | } | |
5029 | ||
5030 | \f | |
5031 | static void | |
5032 | dump_bfd_private_header (bfd *abfd) | |
5033 | { | |
5034 | if (!bfd_print_private_bfd_data (abfd, stdout)) | |
5035 | non_fatal (_("warning: private headers incomplete: %s"), | |
5036 | bfd_errmsg (bfd_get_error ())); | |
5037 | } | |
5038 | ||
5039 | static void | |
5040 | dump_target_specific (bfd *abfd) | |
5041 | { | |
5042 | const struct objdump_private_desc * const *desc; | |
5043 | struct objdump_private_option *opt; | |
5044 | char *e, *b; | |
5045 | ||
5046 | /* Find the desc. */ | |
5047 | for (desc = objdump_private_vectors; *desc != NULL; desc++) | |
5048 | if ((*desc)->filter (abfd)) | |
5049 | break; | |
5050 | ||
5051 | if (*desc == NULL) | |
5052 | { | |
5053 | non_fatal (_("option -P/--private not supported by this file")); | |
5054 | return; | |
5055 | } | |
5056 | ||
5057 | /* Clear all options. */ | |
5058 | for (opt = (*desc)->options; opt->name; opt++) | |
5059 | opt->selected = false; | |
5060 | ||
5061 | /* Decode options. */ | |
5062 | b = dump_private_options; | |
5063 | do | |
5064 | { | |
5065 | e = strchr (b, ','); | |
5066 | ||
5067 | if (e) | |
5068 | *e = 0; | |
5069 | ||
5070 | for (opt = (*desc)->options; opt->name; opt++) | |
5071 | if (strcmp (opt->name, b) == 0) | |
5072 | { | |
5073 | opt->selected = true; | |
5074 | break; | |
5075 | } | |
5076 | if (opt->name == NULL) | |
5077 | non_fatal (_("target specific dump '%s' not supported"), b); | |
5078 | ||
5079 | if (e) | |
5080 | { | |
5081 | *e = ','; | |
5082 | b = e + 1; | |
5083 | } | |
5084 | } | |
5085 | while (e != NULL); | |
5086 | ||
5087 | /* Dump. */ | |
5088 | (*desc)->dump (abfd); | |
5089 | } | |
5090 | \f | |
5091 | /* Display a section in hexadecimal format with associated characters. | |
5092 | Each line prefixed by the zero padded address. */ | |
5093 | ||
5094 | static void | |
5095 | dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED) | |
5096 | { | |
5097 | bfd_byte *data = NULL; | |
5098 | bfd_size_type datasize; | |
5099 | bfd_vma addr_offset; | |
5100 | bfd_vma start_offset; | |
5101 | bfd_vma stop_offset; | |
5102 | unsigned int opb = bfd_octets_per_byte (abfd, section); | |
5103 | /* Bytes per line. */ | |
5104 | const int onaline = 16; | |
5105 | char buf[64]; | |
5106 | int count; | |
5107 | int width; | |
5108 | ||
5109 | if (only_list == NULL) | |
5110 | { | |
5111 | if ((section->flags & SEC_HAS_CONTENTS) == 0) | |
5112 | return; | |
5113 | } | |
5114 | else if (!process_section_p (section)) | |
5115 | return; | |
5116 | ||
5117 | if ((datasize = bfd_section_size (section)) == 0) | |
5118 | return; | |
5119 | ||
5120 | /* Compute the address range to display. */ | |
5121 | if (start_address == (bfd_vma) -1 | |
5122 | || start_address < section->vma) | |
5123 | start_offset = 0; | |
5124 | else | |
5125 | start_offset = start_address - section->vma; | |
5126 | ||
5127 | if (stop_address == (bfd_vma) -1) | |
5128 | stop_offset = datasize / opb; | |
5129 | else | |
5130 | { | |
5131 | if (stop_address < section->vma) | |
5132 | stop_offset = 0; | |
5133 | else | |
5134 | stop_offset = stop_address - section->vma; | |
5135 | ||
5136 | if (stop_offset > datasize / opb) | |
5137 | stop_offset = datasize / opb; | |
5138 | } | |
5139 | ||
5140 | if (start_offset >= stop_offset) | |
5141 | return; | |
5142 | ||
5143 | printf (_("Contents of section %s:"), sanitize_string (section->name)); | |
5144 | if (display_file_offsets) | |
5145 | printf (_(" (Starting at file offset: 0x%lx)"), | |
5146 | (unsigned long) (section->filepos + start_offset)); | |
5147 | printf ("\n"); | |
5148 | ||
5149 | if (bfd_is_section_compressed (abfd, section) && ! decompressed_dumps) | |
5150 | printf (_(" NOTE: This section is compressed, but its contents have NOT been expanded for this dump.\n")); | |
5151 | ||
5152 | if (!bfd_get_full_section_contents (abfd, section, &data)) | |
5153 | { | |
5154 | non_fatal (_("Reading section %s failed because: %s"), | |
5155 | section->name, bfd_errmsg (bfd_get_error ())); | |
5156 | return; | |
5157 | } | |
5158 | ||
5159 | width = 4; | |
5160 | ||
5161 | bfd_sprintf_vma (abfd, buf, start_offset + section->vma); | |
5162 | if (strlen (buf) >= sizeof (buf)) | |
5163 | abort (); | |
5164 | ||
5165 | count = 0; | |
5166 | while (buf[count] == '0' && buf[count+1] != '\0') | |
5167 | count++; | |
5168 | count = strlen (buf) - count; | |
5169 | if (count > width) | |
5170 | width = count; | |
5171 | ||
5172 | bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1); | |
5173 | if (strlen (buf) >= sizeof (buf)) | |
5174 | abort (); | |
5175 | ||
5176 | count = 0; | |
5177 | while (buf[count] == '0' && buf[count+1] != '\0') | |
5178 | count++; | |
5179 | count = strlen (buf) - count; | |
5180 | if (count > width) | |
5181 | width = count; | |
5182 | ||
5183 | for (addr_offset = start_offset; | |
5184 | addr_offset < stop_offset; addr_offset += onaline / opb) | |
5185 | { | |
5186 | bfd_size_type j; | |
5187 | ||
5188 | bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma)); | |
5189 | count = strlen (buf); | |
5190 | if ((size_t) count >= sizeof (buf)) | |
5191 | abort (); | |
5192 | ||
5193 | putchar (' '); | |
5194 | while (count < width) | |
5195 | { | |
5196 | putchar ('0'); | |
5197 | count++; | |
5198 | } | |
5199 | fputs (buf + count - width, stdout); | |
5200 | putchar (' '); | |
5201 | ||
5202 | for (j = addr_offset * opb; | |
5203 | j < addr_offset * opb + onaline; j++) | |
5204 | { | |
5205 | if (j < stop_offset * opb) | |
5206 | printf ("%02x", (unsigned) (data[j])); | |
5207 | else | |
5208 | printf (" "); | |
5209 | if ((j & 3) == 3) | |
5210 | printf (" "); | |
5211 | } | |
5212 | ||
5213 | printf (" "); | |
5214 | for (j = addr_offset * opb; | |
5215 | j < addr_offset * opb + onaline; j++) | |
5216 | { | |
5217 | if (j >= stop_offset * opb) | |
5218 | printf (" "); | |
5219 | else | |
5220 | printf ("%c", ISPRINT (data[j]) ? data[j] : '.'); | |
5221 | } | |
5222 | putchar ('\n'); | |
5223 | } | |
5224 | free (data); | |
5225 | } | |
5226 | ||
5227 | /* Actually display the various requested regions. */ | |
5228 | ||
5229 | static void | |
5230 | dump_data (bfd *abfd) | |
5231 | { | |
5232 | bfd_map_over_sections (abfd, dump_section, NULL); | |
5233 | } | |
5234 | ||
5235 | /* Should perhaps share code and display with nm? */ | |
5236 | ||
5237 | static void | |
5238 | dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bool dynamic) | |
5239 | { | |
5240 | asymbol **current; | |
5241 | long max_count; | |
5242 | long count; | |
5243 | ||
5244 | if (dynamic) | |
5245 | { | |
5246 | current = dynsyms; | |
5247 | max_count = dynsymcount; | |
5248 | printf ("DYNAMIC SYMBOL TABLE:\n"); | |
5249 | } | |
5250 | else | |
5251 | { | |
5252 | current = syms; | |
5253 | max_count = symcount; | |
5254 | printf ("SYMBOL TABLE:\n"); | |
5255 | } | |
5256 | ||
5257 | if (max_count == 0) | |
5258 | printf (_("no symbols\n")); | |
5259 | ||
5260 | for (count = 0; count < max_count; count++) | |
5261 | { | |
5262 | bfd *cur_bfd; | |
5263 | ||
5264 | if (*current == NULL) | |
5265 | printf (_("no information for symbol number %ld\n"), count); | |
5266 | ||
5267 | else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL) | |
5268 | printf (_("could not determine the type of symbol number %ld\n"), | |
5269 | count); | |
5270 | ||
5271 | else if (process_section_p ((* current)->section) | |
5272 | && (dump_special_syms | |
5273 | || !bfd_is_target_special_symbol (cur_bfd, *current))) | |
5274 | { | |
5275 | const char *name = (*current)->name; | |
5276 | ||
5277 | if (do_demangle && name != NULL && *name != '\0') | |
5278 | { | |
5279 | char *alloc; | |
5280 | ||
5281 | /* If we want to demangle the name, we demangle it | |
5282 | here, and temporarily clobber it while calling | |
5283 | bfd_print_symbol. FIXME: This is a gross hack. */ | |
5284 | alloc = bfd_demangle (cur_bfd, name, demangle_flags); | |
5285 | if (alloc != NULL) | |
5286 | (*current)->name = alloc; | |
5287 | bfd_print_symbol (cur_bfd, stdout, *current, | |
5288 | bfd_print_symbol_all); | |
5289 | if (alloc != NULL) | |
5290 | { | |
5291 | (*current)->name = name; | |
5292 | free (alloc); | |
5293 | } | |
5294 | } | |
5295 | else if (unicode_display != unicode_default | |
5296 | && name != NULL && *name != '\0') | |
5297 | { | |
5298 | const char * sanitized_name; | |
5299 | ||
5300 | /* If we want to sanitize the name, we do it here, and | |
5301 | temporarily clobber it while calling bfd_print_symbol. | |
5302 | FIXME: This is a gross hack. */ | |
5303 | sanitized_name = sanitize_string (name); | |
5304 | if (sanitized_name != name) | |
5305 | (*current)->name = sanitized_name; | |
5306 | else | |
5307 | sanitized_name = NULL; | |
5308 | bfd_print_symbol (cur_bfd, stdout, *current, | |
5309 | bfd_print_symbol_all); | |
5310 | if (sanitized_name != NULL) | |
5311 | (*current)->name = name; | |
5312 | } | |
5313 | else | |
5314 | bfd_print_symbol (cur_bfd, stdout, *current, | |
5315 | bfd_print_symbol_all); | |
5316 | printf ("\n"); | |
5317 | } | |
5318 | ||
5319 | current++; | |
5320 | } | |
5321 | printf ("\n\n"); | |
5322 | } | |
5323 | \f | |
5324 | static void | |
5325 | dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount) | |
5326 | { | |
5327 | arelent **p; | |
5328 | char *last_filename, *last_functionname; | |
5329 | unsigned int last_line; | |
5330 | unsigned int last_discriminator; | |
5331 | ||
5332 | /* Get column headers lined up reasonably. */ | |
5333 | { | |
5334 | static int width; | |
5335 | ||
5336 | if (width == 0) | |
5337 | { | |
5338 | char buf[30]; | |
5339 | ||
5340 | bfd_sprintf_vma (abfd, buf, (bfd_vma) -1); | |
5341 | width = strlen (buf) - 7; | |
5342 | } | |
5343 | printf ("OFFSET %*s TYPE %*s VALUE\n", width, "", 12, ""); | |
5344 | } | |
5345 | ||
5346 | last_filename = NULL; | |
5347 | last_functionname = NULL; | |
5348 | last_line = 0; | |
5349 | last_discriminator = 0; | |
5350 | ||
5351 | for (p = relpp; relcount && *p != NULL; p++, relcount--) | |
5352 | { | |
5353 | arelent *q = *p; | |
5354 | const char *filename, *functionname; | |
5355 | unsigned int linenumber; | |
5356 | unsigned int discriminator; | |
5357 | const char *sym_name; | |
5358 | const char *section_name; | |
5359 | bfd_vma addend2 = 0; | |
5360 | ||
5361 | if (start_address != (bfd_vma) -1 | |
5362 | && q->address < start_address) | |
5363 | continue; | |
5364 | if (stop_address != (bfd_vma) -1 | |
5365 | && q->address > stop_address) | |
5366 | continue; | |
5367 | ||
5368 | if (with_line_numbers | |
5369 | && sec != NULL | |
5370 | && bfd_find_nearest_line_discriminator (abfd, sec, syms, q->address, | |
5371 | &filename, &functionname, | |
5372 | &linenumber, &discriminator)) | |
5373 | { | |
5374 | if (functionname != NULL | |
5375 | && (last_functionname == NULL | |
5376 | || strcmp (functionname, last_functionname) != 0)) | |
5377 | { | |
5378 | printf ("%s():\n", sanitize_string (functionname)); | |
5379 | if (last_functionname != NULL) | |
5380 | free (last_functionname); | |
5381 | last_functionname = xstrdup (functionname); | |
5382 | } | |
5383 | ||
5384 | if (linenumber > 0 | |
5385 | && (linenumber != last_line | |
5386 | || (filename != NULL | |
5387 | && last_filename != NULL | |
5388 | && filename_cmp (filename, last_filename) != 0) | |
5389 | || (discriminator != last_discriminator))) | |
5390 | { | |
5391 | if (discriminator > 0) | |
5392 | printf ("%s:%u\n", filename == NULL ? "???" : | |
5393 | sanitize_string (filename), linenumber); | |
5394 | else | |
5395 | printf ("%s:%u (discriminator %u)\n", | |
5396 | filename == NULL ? "???" : sanitize_string (filename), | |
5397 | linenumber, discriminator); | |
5398 | last_line = linenumber; | |
5399 | last_discriminator = discriminator; | |
5400 | if (last_filename != NULL) | |
5401 | free (last_filename); | |
5402 | if (filename == NULL) | |
5403 | last_filename = NULL; | |
5404 | else | |
5405 | last_filename = xstrdup (filename); | |
5406 | } | |
5407 | } | |
5408 | ||
5409 | if (q->sym_ptr_ptr && *q->sym_ptr_ptr) | |
5410 | { | |
5411 | sym_name = (*(q->sym_ptr_ptr))->name; | |
5412 | section_name = (*(q->sym_ptr_ptr))->section->name; | |
5413 | } | |
5414 | else | |
5415 | { | |
5416 | sym_name = NULL; | |
5417 | section_name = NULL; | |
5418 | } | |
5419 | ||
5420 | bfd_printf_vma (abfd, q->address); | |
5421 | if (q->howto == NULL) | |
5422 | printf (" *unknown* "); | |
5423 | else if (q->howto->name) | |
5424 | { | |
5425 | const char *name = q->howto->name; | |
5426 | ||
5427 | /* R_SPARC_OLO10 relocations contain two addends. | |
5428 | But because 'arelent' lacks enough storage to | |
5429 | store them both, the 64-bit ELF Sparc backend | |
5430 | records this as two relocations. One R_SPARC_LO10 | |
5431 | and one R_SPARC_13, both pointing to the same | |
5432 | address. This is merely so that we have some | |
5433 | place to store both addend fields. | |
5434 | ||
5435 | Undo this transformation, otherwise the output | |
5436 | will be confusing. */ | |
5437 | if (abfd->xvec->flavour == bfd_target_elf_flavour | |
5438 | && elf_tdata (abfd)->elf_header->e_machine == EM_SPARCV9 | |
5439 | && relcount > 1 | |
5440 | && !strcmp (q->howto->name, "R_SPARC_LO10")) | |
5441 | { | |
5442 | arelent *q2 = *(p + 1); | |
5443 | if (q2 != NULL | |
5444 | && q2->howto | |
5445 | && q->address == q2->address | |
5446 | && !strcmp (q2->howto->name, "R_SPARC_13")) | |
5447 | { | |
5448 | name = "R_SPARC_OLO10"; | |
5449 | addend2 = q2->addend; | |
5450 | p++; | |
5451 | } | |
5452 | } | |
5453 | printf (" %-16s ", name); | |
5454 | } | |
5455 | else | |
5456 | printf (" %-16d ", q->howto->type); | |
5457 | ||
5458 | if (sym_name) | |
5459 | { | |
5460 | objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr); | |
5461 | } | |
5462 | else | |
5463 | { | |
5464 | if (section_name == NULL) | |
5465 | section_name = "*unknown*"; | |
5466 | printf ("[%s]", sanitize_string (section_name)); | |
5467 | } | |
5468 | ||
5469 | if (q->addend) | |
5470 | { | |
5471 | bfd_signed_vma addend = q->addend; | |
5472 | if (addend < 0) | |
5473 | { | |
5474 | printf ("-0x"); | |
5475 | addend = -addend; | |
5476 | } | |
5477 | else | |
5478 | printf ("+0x"); | |
5479 | bfd_printf_vma (abfd, addend); | |
5480 | } | |
5481 | if (addend2) | |
5482 | { | |
5483 | printf ("+0x"); | |
5484 | bfd_printf_vma (abfd, addend2); | |
5485 | } | |
5486 | ||
5487 | printf ("\n"); | |
5488 | } | |
5489 | ||
5490 | if (last_filename != NULL) | |
5491 | free (last_filename); | |
5492 | if (last_functionname != NULL) | |
5493 | free (last_functionname); | |
5494 | } | |
5495 | ||
5496 | static void | |
5497 | dump_relocs_in_section (bfd *abfd, | |
5498 | asection *section, | |
5499 | void *counter) | |
5500 | { | |
5501 | arelent **relpp; | |
5502 | long relcount; | |
5503 | long relsize; | |
5504 | ||
5505 | if ( bfd_is_abs_section (section) | |
5506 | || bfd_is_und_section (section) | |
5507 | || bfd_is_com_section (section) | |
5508 | || (! process_section_p (section)) | |
5509 | || ((section->flags & SEC_RELOC) == 0)) | |
5510 | return; | |
5511 | ||
5512 | printf ("RELOCATION RECORDS FOR [%s]:", sanitize_string (section->name)); | |
5513 | ||
5514 | relsize = bfd_get_reloc_upper_bound (abfd, section); | |
5515 | if (relsize == 0) | |
5516 | { | |
5517 | printf (" (none)\n\n"); | |
5518 | return; | |
5519 | } | |
5520 | ||
5521 | if (relsize < 0) | |
5522 | { | |
5523 | relpp = NULL; | |
5524 | relcount = relsize; | |
5525 | } | |
5526 | else | |
5527 | { | |
5528 | relpp = (arelent **) xmalloc (relsize); | |
5529 | relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms); | |
5530 | } | |
5531 | ||
5532 | if (relcount < 0) | |
5533 | { | |
5534 | printf ("\n"); | |
5535 | non_fatal (_("failed to read relocs in: %s"), | |
5536 | sanitize_string (bfd_get_filename (abfd))); | |
5537 | my_bfd_nonfatal (_("error message was")); | |
5538 | } | |
5539 | else if (relcount == 0) | |
5540 | printf (" (none)\n\n"); | |
5541 | else | |
5542 | { | |
5543 | printf ("\n"); | |
5544 | dump_reloc_set (abfd, section, relpp, relcount); | |
5545 | printf ("\n\n"); | |
5546 | } | |
5547 | free (relpp); | |
5548 | ||
5549 | * ((unsigned int *) counter) += 1; | |
5550 | } | |
5551 | ||
5552 | static void | |
5553 | is_relr_section (bfd *abfd ATTRIBUTE_UNUSED, | |
5554 | asection * section, void *data) | |
5555 | { | |
5556 | if (section->flags & SEC_LINKER_CREATED) | |
5557 | return; | |
5558 | ||
5559 | struct bfd_elf_section_data * esd = elf_section_data (section); | |
5560 | if (esd == NULL) | |
5561 | return; | |
5562 | ||
5563 | if (esd->this_hdr.sh_type == SHT_RELR) | |
5564 | * ((bool *) data) = true; | |
5565 | } | |
5566 | ||
5567 | static bool | |
5568 | contains_relr_relocs (bfd *abfd) | |
5569 | { | |
5570 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
5571 | return false; | |
5572 | ||
5573 | bool result = false; | |
5574 | ||
5575 | bfd_map_over_sections (abfd, is_relr_section, &result); | |
5576 | ||
5577 | return result; | |
5578 | } | |
5579 | ||
5580 | static void | |
5581 | dump_relocs (bfd *abfd) | |
5582 | { | |
5583 | unsigned int counter = 0; | |
5584 | ||
5585 | bfd_map_over_sections (abfd, dump_relocs_in_section, & counter); | |
5586 | ||
5587 | if (counter == 0 && contains_relr_relocs (abfd)) | |
5588 | { | |
5589 | printf (_("%s: This file does not contain any ordinary relocations.\n"), | |
5590 | sanitize_string (bfd_get_filename (abfd))); | |
5591 | ||
5592 | printf (_("%s: It does however contain RELR relocations. These can be displayed by the readelf program\n"), | |
5593 | sanitize_string (bfd_get_filename (abfd))); | |
5594 | } | |
5595 | } | |
5596 | ||
5597 | static void | |
5598 | dump_dynamic_relocs (bfd *abfd) | |
5599 | { | |
5600 | long relsize; | |
5601 | arelent **relpp = NULL; | |
5602 | long relcount; | |
5603 | ||
5604 | relsize = bfd_get_dynamic_reloc_upper_bound (abfd); | |
5605 | ||
5606 | printf ("DYNAMIC RELOCATION RECORDS"); | |
5607 | ||
5608 | if (relsize <= 0) | |
5609 | goto none; | |
5610 | ||
5611 | relpp = (arelent **) xmalloc (relsize); | |
5612 | relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms); | |
5613 | ||
5614 | if (relcount < 0) | |
5615 | { | |
5616 | printf ("\n"); | |
5617 | non_fatal (_("failed to read relocs in: %s"), | |
5618 | sanitize_string (bfd_get_filename (abfd))); | |
5619 | my_bfd_nonfatal (_("error message was")); | |
5620 | } | |
5621 | else if (relcount == 0) | |
5622 | goto none; | |
5623 | else | |
5624 | { | |
5625 | printf ("\n"); | |
5626 | dump_reloc_set (abfd, NULL, relpp, relcount); | |
5627 | printf ("\n\n"); | |
5628 | } | |
5629 | free (relpp); | |
5630 | return; | |
5631 | ||
5632 | none: | |
5633 | printf (" (none)\n\n"); | |
5634 | ||
5635 | if (contains_relr_relocs (abfd)) | |
5636 | printf (_("%s: contains RELR relocations which are not displayed by %s.\n\ | |
5637 | These can be displayed by the readelf program instead.\n"), | |
5638 | sanitize_string (bfd_get_filename (abfd)), | |
5639 | program_name); | |
5640 | ||
5641 | free (relpp); | |
5642 | } | |
5643 | ||
5644 | /* Creates a table of paths, to search for source files. */ | |
5645 | ||
5646 | static void | |
5647 | add_include_path (const char *path) | |
5648 | { | |
5649 | if (path[0] == 0) | |
5650 | return; | |
5651 | include_path_count++; | |
5652 | include_paths = (const char **) | |
5653 | xrealloc (include_paths, include_path_count * sizeof (*include_paths)); | |
5654 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
5655 | if (path[1] == ':' && path[2] == 0) | |
5656 | path = concat (path, ".", (const char *) 0); | |
5657 | #endif | |
5658 | include_paths[include_path_count - 1] = path; | |
5659 | } | |
5660 | ||
5661 | static void | |
5662 | adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED, | |
5663 | asection *section, | |
5664 | void *arg) | |
5665 | { | |
5666 | if ((section->flags & SEC_DEBUGGING) == 0) | |
5667 | { | |
5668 | bool *has_reloc_p = (bool *) arg; | |
5669 | section->vma += adjust_section_vma; | |
5670 | if (*has_reloc_p) | |
5671 | section->lma += adjust_section_vma; | |
5672 | } | |
5673 | } | |
5674 | ||
5675 | /* Return the sign-extended form of an ARCH_SIZE sized VMA. */ | |
5676 | ||
5677 | static bfd_vma | |
5678 | sign_extend_address (bfd *abfd ATTRIBUTE_UNUSED, | |
5679 | bfd_vma vma, | |
5680 | unsigned arch_size) | |
5681 | { | |
5682 | bfd_vma mask; | |
5683 | mask = (bfd_vma) 1 << (arch_size - 1); | |
5684 | return (((vma & ((mask << 1) - 1)) ^ mask) - mask); | |
5685 | } | |
5686 | ||
5687 | static bool | |
5688 | might_need_separate_debug_info (bool is_mainfile) | |
5689 | { | |
5690 | /* We do not follow links from debug info files. */ | |
5691 | if (! is_mainfile) | |
5692 | return false; | |
5693 | ||
5694 | /* Since do_follow_links might be enabled by default, only treat it as an | |
5695 | indication that separate files should be loaded if setting it was a | |
5696 | deliberate user action. */ | |
5697 | if (DEFAULT_FOR_FOLLOW_LINKS == 0 && do_follow_links) | |
5698 | return true; | |
5699 | ||
5700 | if (process_links || dump_symtab || dump_debugging | |
5701 | || dump_dwarf_section_info || with_source_code) | |
5702 | return true; | |
5703 | ||
5704 | return false; | |
5705 | } | |
5706 | ||
5707 | /* Dump selected contents of ABFD. */ | |
5708 | ||
5709 | static void | |
5710 | dump_bfd (bfd *abfd, bool is_mainfile) | |
5711 | { | |
5712 | const struct elf_backend_data * bed; | |
5713 | ||
5714 | if (bfd_big_endian (abfd)) | |
5715 | byte_get = byte_get_big_endian; | |
5716 | else if (bfd_little_endian (abfd)) | |
5717 | byte_get = byte_get_little_endian; | |
5718 | else | |
5719 | byte_get = NULL; | |
5720 | ||
5721 | /* Load any separate debug information files. */ | |
5722 | if (byte_get != NULL && might_need_separate_debug_info (is_mainfile)) | |
5723 | { | |
5724 | load_separate_debug_files (abfd, bfd_get_filename (abfd)); | |
5725 | ||
5726 | /* If asked to do so, recursively dump the separate files. */ | |
5727 | if (do_follow_links) | |
5728 | { | |
5729 | separate_info * i; | |
5730 | ||
5731 | for (i = first_separate_info; i != NULL; i = i->next) | |
5732 | dump_bfd (i->handle, false); | |
5733 | } | |
5734 | } | |
5735 | ||
5736 | /* Adjust user-specified start and stop limits for targets that use | |
5737 | signed addresses. */ | |
5738 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
5739 | && (bed = get_elf_backend_data (abfd)) != NULL | |
5740 | && bed->sign_extend_vma) | |
5741 | { | |
5742 | start_address = sign_extend_address (abfd, start_address, | |
5743 | bed->s->arch_size); | |
5744 | stop_address = sign_extend_address (abfd, stop_address, | |
5745 | bed->s->arch_size); | |
5746 | } | |
5747 | ||
5748 | /* If we are adjusting section VMA's, change them all now. Changing | |
5749 | the BFD information is a hack. However, we must do it, or | |
5750 | bfd_find_nearest_line will not do the right thing. */ | |
5751 | if (adjust_section_vma != 0) | |
5752 | { | |
5753 | bool has_reloc = (abfd->flags & HAS_RELOC); | |
5754 | bfd_map_over_sections (abfd, adjust_addresses, &has_reloc); | |
5755 | } | |
5756 | ||
5757 | if (is_mainfile || process_links) | |
5758 | { | |
5759 | if (! dump_debugging_tags && ! suppress_bfd_header) | |
5760 | printf (_("\n%s: file format %s\n"), | |
5761 | sanitize_string (bfd_get_filename (abfd)), | |
5762 | abfd->xvec->name); | |
5763 | if (dump_ar_hdrs) | |
5764 | print_arelt_descr (stdout, abfd, true, false); | |
5765 | if (dump_file_header) | |
5766 | dump_bfd_header (abfd); | |
5767 | if (dump_private_headers) | |
5768 | dump_bfd_private_header (abfd); | |
5769 | if (dump_private_options != NULL) | |
5770 | dump_target_specific (abfd); | |
5771 | if (! dump_debugging_tags && ! suppress_bfd_header) | |
5772 | putchar ('\n'); | |
5773 | } | |
5774 | ||
5775 | if (dump_symtab | |
5776 | || dump_reloc_info | |
5777 | || disassemble | |
5778 | || dump_debugging | |
5779 | || dump_dwarf_section_info) | |
5780 | { | |
5781 | syms = slurp_symtab (abfd); | |
5782 | ||
5783 | /* If following links, load any symbol tables from the linked files as well. */ | |
5784 | if (do_follow_links && is_mainfile) | |
5785 | { | |
5786 | separate_info * i; | |
5787 | ||
5788 | for (i = first_separate_info; i != NULL; i = i->next) | |
5789 | { | |
5790 | asymbol ** extra_syms; | |
5791 | long old_symcount = symcount; | |
5792 | ||
5793 | extra_syms = slurp_symtab (i->handle); | |
5794 | ||
5795 | if (extra_syms) | |
5796 | { | |
5797 | if (old_symcount == 0) | |
5798 | { | |
5799 | free (syms); | |
5800 | syms = extra_syms; | |
5801 | } | |
5802 | else | |
5803 | { | |
5804 | syms = xrealloc (syms, ((symcount + old_symcount + 1) | |
5805 | * sizeof (asymbol *))); | |
5806 | memcpy (syms + old_symcount, | |
5807 | extra_syms, | |
5808 | (symcount + 1) * sizeof (asymbol *)); | |
5809 | free (extra_syms); | |
5810 | } | |
5811 | } | |
5812 | ||
5813 | symcount += old_symcount; | |
5814 | } | |
5815 | } | |
5816 | } | |
5817 | ||
5818 | if (is_mainfile || process_links) | |
5819 | { | |
5820 | if (dump_section_headers) | |
5821 | dump_headers (abfd); | |
5822 | ||
5823 | if (dump_dynamic_symtab || dump_dynamic_reloc_info | |
5824 | || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0)) | |
5825 | dynsyms = slurp_dynamic_symtab (abfd); | |
5826 | ||
5827 | if (disassemble) | |
5828 | { | |
5829 | synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms, | |
5830 | dynsymcount, dynsyms, | |
5831 | &synthsyms); | |
5832 | if (synthcount < 0) | |
5833 | synthcount = 0; | |
5834 | } | |
5835 | ||
5836 | if (dump_symtab) | |
5837 | dump_symbols (abfd, false); | |
5838 | if (dump_dynamic_symtab) | |
5839 | dump_symbols (abfd, true); | |
5840 | } | |
5841 | if (dump_dwarf_section_info) | |
5842 | dump_dwarf (abfd, is_mainfile); | |
5843 | if (is_mainfile || process_links) | |
5844 | { | |
5845 | if (dump_ctf_section_info) | |
5846 | dump_ctf (abfd, dump_ctf_section_name, dump_ctf_parent_name, | |
5847 | dump_ctf_parent_section_name); | |
5848 | if (dump_sframe_section_info) | |
5849 | dump_section_sframe (abfd, dump_sframe_section_name); | |
5850 | if (dump_stab_section_info) | |
5851 | dump_stabs (abfd); | |
5852 | if (dump_reloc_info && ! disassemble) | |
5853 | dump_relocs (abfd); | |
5854 | if (dump_dynamic_reloc_info && ! disassemble) | |
5855 | dump_dynamic_relocs (abfd); | |
5856 | if (dump_section_contents) | |
5857 | dump_data (abfd); | |
5858 | if (disassemble) | |
5859 | disassemble_data (abfd); | |
5860 | } | |
5861 | ||
5862 | if (dump_debugging) | |
5863 | { | |
5864 | void *dhandle; | |
5865 | ||
5866 | dhandle = read_debugging_info (abfd, syms, symcount, true); | |
5867 | if (dhandle != NULL) | |
5868 | { | |
5869 | if (!print_debugging_info (stdout, dhandle, abfd, syms, | |
5870 | bfd_demangle, | |
5871 | dump_debugging_tags != 0)) | |
5872 | { | |
5873 | non_fatal (_("%s: printing debugging information failed"), | |
5874 | bfd_get_filename (abfd)); | |
5875 | exit_status = 1; | |
5876 | } | |
5877 | } | |
5878 | /* PR 6483: If there was no STABS debug info in the file, try | |
5879 | DWARF instead. */ | |
5880 | else if (! dump_dwarf_section_info) | |
5881 | { | |
5882 | dwarf_select_sections_all (); | |
5883 | dump_dwarf (abfd, is_mainfile); | |
5884 | } | |
5885 | } | |
5886 | ||
5887 | if (syms) | |
5888 | { | |
5889 | free (syms); | |
5890 | syms = NULL; | |
5891 | } | |
5892 | ||
5893 | if (dynsyms) | |
5894 | { | |
5895 | free (dynsyms); | |
5896 | dynsyms = NULL; | |
5897 | } | |
5898 | ||
5899 | if (synthsyms) | |
5900 | { | |
5901 | free (synthsyms); | |
5902 | synthsyms = NULL; | |
5903 | } | |
5904 | ||
5905 | symcount = 0; | |
5906 | dynsymcount = 0; | |
5907 | synthcount = 0; | |
5908 | ||
5909 | if (is_mainfile) | |
5910 | free_debug_memory (); | |
5911 | } | |
5912 | ||
5913 | static void | |
5914 | display_object_bfd (bfd *abfd) | |
5915 | { | |
5916 | char **matching; | |
5917 | ||
5918 | if (bfd_check_format_matches (abfd, bfd_object, &matching)) | |
5919 | { | |
5920 | dump_bfd (abfd, true); | |
5921 | return; | |
5922 | } | |
5923 | ||
5924 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) | |
5925 | { | |
5926 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
5927 | list_matching_formats (matching); | |
5928 | return; | |
5929 | } | |
5930 | ||
5931 | if (bfd_get_error () != bfd_error_file_not_recognized) | |
5932 | { | |
5933 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
5934 | return; | |
5935 | } | |
5936 | ||
5937 | if (bfd_check_format_matches (abfd, bfd_core, &matching)) | |
5938 | { | |
5939 | dump_bfd (abfd, true); | |
5940 | return; | |
5941 | } | |
5942 | ||
5943 | my_bfd_nonfatal (bfd_get_filename (abfd)); | |
5944 | ||
5945 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) | |
5946 | list_matching_formats (matching); | |
5947 | } | |
5948 | ||
5949 | static void | |
5950 | display_any_bfd (bfd *file, int level) | |
5951 | { | |
5952 | /* Decompress sections unless dumping the section contents. */ | |
5953 | if (!dump_section_contents || decompressed_dumps) | |
5954 | file->flags |= BFD_DECOMPRESS; | |
5955 | ||
5956 | /* If the file is an archive, process all of its elements. */ | |
5957 | if (bfd_check_format (file, bfd_archive)) | |
5958 | { | |
5959 | if (level == 0) | |
5960 | printf (_("In archive %s:\n"), sanitize_string (bfd_get_filename (file))); | |
5961 | else if (level > 100) | |
5962 | { | |
5963 | /* Prevent corrupted files from spinning us into an | |
5964 | infinite loop. 100 is an arbitrary heuristic. */ | |
5965 | non_fatal (_("Archive nesting is too deep")); | |
5966 | exit_status = 1; | |
5967 | return; | |
5968 | } | |
5969 | else | |
5970 | printf (_("In nested archive %s:\n"), | |
5971 | sanitize_string (bfd_get_filename (file))); | |
5972 | ||
5973 | bfd *last_arfile = NULL; | |
5974 | for (;;) | |
5975 | { | |
5976 | bfd *arfile = bfd_openr_next_archived_file (file, last_arfile); | |
5977 | if (arfile == NULL | |
5978 | || arfile == last_arfile) | |
5979 | { | |
5980 | if (arfile != NULL) | |
5981 | bfd_set_error (bfd_error_malformed_archive); | |
5982 | if (bfd_get_error () != bfd_error_no_more_archived_files) | |
5983 | my_bfd_nonfatal (bfd_get_filename (file)); | |
5984 | break; | |
5985 | } | |
5986 | ||
5987 | if (last_arfile != NULL) | |
5988 | bfd_close (last_arfile); | |
5989 | ||
5990 | display_any_bfd (arfile, level + 1); | |
5991 | ||
5992 | last_arfile = arfile; | |
5993 | } | |
5994 | ||
5995 | if (last_arfile != NULL) | |
5996 | bfd_close (last_arfile); | |
5997 | } | |
5998 | else | |
5999 | display_object_bfd (file); | |
6000 | } | |
6001 | ||
6002 | static void | |
6003 | display_file (char *filename, char *target) | |
6004 | { | |
6005 | bfd *file; | |
6006 | ||
6007 | if (get_file_size (filename) < 1) | |
6008 | { | |
6009 | exit_status = 1; | |
6010 | return; | |
6011 | } | |
6012 | ||
6013 | file = bfd_openr (filename, target); | |
6014 | if (file == NULL) | |
6015 | { | |
6016 | my_bfd_nonfatal (filename); | |
6017 | return; | |
6018 | } | |
6019 | ||
6020 | display_any_bfd (file, 0); | |
6021 | ||
6022 | bfd_close (file); | |
6023 | } | |
6024 | \f | |
6025 | int | |
6026 | main (int argc, char **argv) | |
6027 | { | |
6028 | int c; | |
6029 | char *target = default_target; | |
6030 | bool seenflag = false; | |
6031 | ||
6032 | #ifdef HAVE_LC_MESSAGES | |
6033 | setlocale (LC_MESSAGES, ""); | |
6034 | #endif | |
6035 | setlocale (LC_CTYPE, ""); | |
6036 | ||
6037 | bindtextdomain (PACKAGE, LOCALEDIR); | |
6038 | textdomain (PACKAGE); | |
6039 | ||
6040 | program_name = *argv; | |
6041 | xmalloc_set_program_name (program_name); | |
6042 | bfd_set_error_program_name (program_name); | |
6043 | ||
6044 | expandargv (&argc, &argv); | |
6045 | ||
6046 | if (bfd_init () != BFD_INIT_MAGIC) | |
6047 | fatal (_("fatal error: libbfd ABI mismatch")); | |
6048 | set_default_bfd_target (); | |
6049 | ||
6050 | while ((c = getopt_long (argc, argv, | |
6051 | "CDE:FGHI:LM:P:RSTU:VW::Zab:defghij:lm:prstvwxz", | |
6052 | long_options, (int *) 0)) | |
6053 | != EOF) | |
6054 | { | |
6055 | switch (c) | |
6056 | { | |
6057 | case 0: | |
6058 | break; /* We've been given a long option. */ | |
6059 | case 'm': | |
6060 | machine = optarg; | |
6061 | break; | |
6062 | case 'Z': | |
6063 | decompressed_dumps = true; | |
6064 | break; | |
6065 | case 'M': | |
6066 | { | |
6067 | char *options; | |
6068 | if (disassembler_options) | |
6069 | options = concat (disassembler_options, ",", | |
6070 | optarg, (const char *) NULL); | |
6071 | else | |
6072 | options = xstrdup (optarg); | |
6073 | free (disassembler_options); | |
6074 | disassembler_options = remove_whitespace_and_extra_commas (options); | |
6075 | if (!disassembler_options) | |
6076 | free (options); | |
6077 | } | |
6078 | break; | |
6079 | case 'j': | |
6080 | add_only (optarg); | |
6081 | break; | |
6082 | case 'F': | |
6083 | display_file_offsets = true; | |
6084 | break; | |
6085 | case 'l': | |
6086 | with_line_numbers = true; | |
6087 | break; | |
6088 | case 'b': | |
6089 | target = optarg; | |
6090 | break; | |
6091 | case 'C': | |
6092 | do_demangle = true; | |
6093 | if (optarg != NULL) | |
6094 | { | |
6095 | enum demangling_styles style; | |
6096 | ||
6097 | style = cplus_demangle_name_to_style (optarg); | |
6098 | if (style == unknown_demangling) | |
6099 | fatal (_("unknown demangling style `%s'"), | |
6100 | optarg); | |
6101 | ||
6102 | cplus_demangle_set_style (style); | |
6103 | } | |
6104 | break; | |
6105 | case OPTION_RECURSE_LIMIT: | |
6106 | demangle_flags &= ~ DMGL_NO_RECURSE_LIMIT; | |
6107 | break; | |
6108 | case OPTION_NO_RECURSE_LIMIT: | |
6109 | demangle_flags |= DMGL_NO_RECURSE_LIMIT; | |
6110 | break; | |
6111 | case 'w': | |
6112 | do_wide = wide_output = true; | |
6113 | break; | |
6114 | case OPTION_ADJUST_VMA: | |
6115 | adjust_section_vma = parse_vma (optarg, "--adjust-vma"); | |
6116 | break; | |
6117 | case OPTION_START_ADDRESS: | |
6118 | start_address = parse_vma (optarg, "--start-address"); | |
6119 | if ((stop_address != (bfd_vma) -1) && stop_address <= start_address) | |
6120 | fatal (_("error: the start address should be before the end address")); | |
6121 | break; | |
6122 | case OPTION_STOP_ADDRESS: | |
6123 | stop_address = parse_vma (optarg, "--stop-address"); | |
6124 | if ((start_address != (bfd_vma) -1) && stop_address <= start_address) | |
6125 | fatal (_("error: the stop address should be after the start address")); | |
6126 | break; | |
6127 | case OPTION_PREFIX: | |
6128 | prefix = optarg; | |
6129 | prefix_length = strlen (prefix); | |
6130 | /* Remove an unnecessary trailing '/' */ | |
6131 | while (IS_DIR_SEPARATOR (prefix[prefix_length - 1])) | |
6132 | prefix_length--; | |
6133 | break; | |
6134 | case OPTION_PREFIX_STRIP: | |
6135 | prefix_strip = atoi (optarg); | |
6136 | if (prefix_strip < 0) | |
6137 | fatal (_("error: prefix strip must be non-negative")); | |
6138 | break; | |
6139 | case OPTION_INSN_WIDTH: | |
6140 | insn_width = strtoul (optarg, NULL, 0); | |
6141 | if (insn_width - 1 >= MAX_INSN_WIDTH) | |
6142 | fatal (_("error: instruction width must be in the range 1 to " | |
6143 | XSTRING (MAX_INSN_WIDTH))); | |
6144 | break; | |
6145 | case OPTION_INLINES: | |
6146 | unwind_inlines = true; | |
6147 | break; | |
6148 | case OPTION_VISUALIZE_JUMPS: | |
6149 | visualize_jumps = true; | |
6150 | color_output = false; | |
6151 | extended_color_output = false; | |
6152 | if (optarg != NULL) | |
6153 | { | |
6154 | if (streq (optarg, "color")) | |
6155 | color_output = true; | |
6156 | else if (streq (optarg, "extended-color")) | |
6157 | { | |
6158 | color_output = true; | |
6159 | extended_color_output = true; | |
6160 | } | |
6161 | else if (streq (optarg, "off")) | |
6162 | visualize_jumps = false; | |
6163 | else | |
6164 | { | |
6165 | non_fatal (_("unrecognized argument to --visualize-option")); | |
6166 | usage (stderr, 1); | |
6167 | } | |
6168 | } | |
6169 | break; | |
6170 | case OPTION_DISASSEMBLER_COLOR: | |
6171 | if (streq (optarg, "off")) | |
6172 | disassembler_color = off; | |
6173 | else if (streq (optarg, "terminal")) | |
6174 | disassembler_color = on_if_terminal_output; | |
6175 | else if (streq (optarg, "color") | |
6176 | || streq (optarg, "colour") | |
6177 | || streq (optarg, "on")) | |
6178 | disassembler_color = on; | |
6179 | else if (streq (optarg, "extended") | |
6180 | || streq (optarg, "extended-color") | |
6181 | || streq (optarg, "extended-colour")) | |
6182 | disassembler_color = extended; | |
6183 | else | |
6184 | { | |
6185 | non_fatal (_("unrecognized argument to --disassembler-color")); | |
6186 | usage (stderr, 1); | |
6187 | } | |
6188 | break; | |
6189 | case 'E': | |
6190 | if (strcmp (optarg, "B") == 0) | |
6191 | endian = BFD_ENDIAN_BIG; | |
6192 | else if (strcmp (optarg, "L") == 0) | |
6193 | endian = BFD_ENDIAN_LITTLE; | |
6194 | else | |
6195 | { | |
6196 | non_fatal (_("unrecognized -E option")); | |
6197 | usage (stderr, 1); | |
6198 | } | |
6199 | break; | |
6200 | case OPTION_ENDIAN: | |
6201 | if (strncmp (optarg, "big", strlen (optarg)) == 0) | |
6202 | endian = BFD_ENDIAN_BIG; | |
6203 | else if (strncmp (optarg, "little", strlen (optarg)) == 0) | |
6204 | endian = BFD_ENDIAN_LITTLE; | |
6205 | else | |
6206 | { | |
6207 | non_fatal (_("unrecognized --endian type `%s'"), optarg); | |
6208 | usage (stderr, 1); | |
6209 | } | |
6210 | break; | |
6211 | ||
6212 | case 'f': | |
6213 | dump_file_header = true; | |
6214 | seenflag = true; | |
6215 | break; | |
6216 | case 'i': | |
6217 | formats_info = true; | |
6218 | seenflag = true; | |
6219 | break; | |
6220 | case 'I': | |
6221 | add_include_path (optarg); | |
6222 | break; | |
6223 | case 'p': | |
6224 | dump_private_headers = true; | |
6225 | seenflag = true; | |
6226 | break; | |
6227 | case 'P': | |
6228 | dump_private_options = optarg; | |
6229 | seenflag = true; | |
6230 | break; | |
6231 | case 'x': | |
6232 | dump_private_headers = true; | |
6233 | dump_symtab = true; | |
6234 | dump_reloc_info = true; | |
6235 | dump_file_header = true; | |
6236 | dump_ar_hdrs = true; | |
6237 | dump_section_headers = true; | |
6238 | seenflag = true; | |
6239 | break; | |
6240 | case 't': | |
6241 | dump_symtab = true; | |
6242 | seenflag = true; | |
6243 | break; | |
6244 | case 'T': | |
6245 | dump_dynamic_symtab = true; | |
6246 | seenflag = true; | |
6247 | break; | |
6248 | case 'd': | |
6249 | disassemble = true; | |
6250 | seenflag = true; | |
6251 | if (optarg) | |
6252 | { | |
6253 | struct symbol_entry *sym = xmalloc (sizeof (*sym)); | |
6254 | ||
6255 | sym->name = optarg; | |
6256 | sym->next = disasm_sym_list; | |
6257 | disasm_sym_list = sym; | |
6258 | } | |
6259 | break; | |
6260 | case 'z': | |
6261 | disassemble_zeroes = true; | |
6262 | break; | |
6263 | case 'D': | |
6264 | disassemble = true; | |
6265 | disassemble_all = true; | |
6266 | seenflag = true; | |
6267 | break; | |
6268 | case 'S': | |
6269 | disassemble = true; | |
6270 | with_source_code = true; | |
6271 | seenflag = true; | |
6272 | break; | |
6273 | case OPTION_SOURCE_COMMENT: | |
6274 | disassemble = true; | |
6275 | with_source_code = true; | |
6276 | seenflag = true; | |
6277 | if (optarg) | |
6278 | source_comment = xstrdup (sanitize_string (optarg)); | |
6279 | else | |
6280 | source_comment = xstrdup ("# "); | |
6281 | break; | |
6282 | case 'g': | |
6283 | dump_debugging = 1; | |
6284 | seenflag = true; | |
6285 | break; | |
6286 | case 'e': | |
6287 | dump_debugging = 1; | |
6288 | dump_debugging_tags = 1; | |
6289 | do_demangle = true; | |
6290 | seenflag = true; | |
6291 | break; | |
6292 | case 'L': | |
6293 | process_links = true; | |
6294 | do_follow_links = true; | |
6295 | break; | |
6296 | case 'W': | |
6297 | seenflag = true; | |
6298 | if (optarg) | |
6299 | { | |
6300 | if (dwarf_select_sections_by_letters (optarg)) | |
6301 | dump_dwarf_section_info = true; | |
6302 | } | |
6303 | else | |
6304 | { | |
6305 | dump_dwarf_section_info = true; | |
6306 | dwarf_select_sections_all (); | |
6307 | } | |
6308 | break; | |
6309 | case OPTION_DWARF: | |
6310 | seenflag = true; | |
6311 | if (optarg) | |
6312 | { | |
6313 | if (dwarf_select_sections_by_names (optarg)) | |
6314 | dump_dwarf_section_info = true; | |
6315 | } | |
6316 | else | |
6317 | { | |
6318 | dwarf_select_sections_all (); | |
6319 | dump_dwarf_section_info = true; | |
6320 | } | |
6321 | break; | |
6322 | case OPTION_DWARF_DEPTH: | |
6323 | { | |
6324 | char *cp; | |
6325 | dwarf_cutoff_level = strtoul (optarg, & cp, 0); | |
6326 | } | |
6327 | break; | |
6328 | case OPTION_DWARF_START: | |
6329 | { | |
6330 | char *cp; | |
6331 | dwarf_start_die = strtoul (optarg, & cp, 0); | |
6332 | suppress_bfd_header = 1; | |
6333 | } | |
6334 | break; | |
6335 | case OPTION_DWARF_CHECK: | |
6336 | dwarf_check = true; | |
6337 | break; | |
6338 | #ifdef ENABLE_LIBCTF | |
6339 | case OPTION_CTF: | |
6340 | dump_ctf_section_info = true; | |
6341 | if (optarg) | |
6342 | dump_ctf_section_name = xstrdup (optarg); | |
6343 | seenflag = true; | |
6344 | break; | |
6345 | case OPTION_CTF_PARENT: | |
6346 | dump_ctf_parent_name = xstrdup (optarg); | |
6347 | break; | |
6348 | case OPTION_CTF_PARENT_SECTION: | |
6349 | dump_ctf_parent_section_name = xstrdup (optarg); | |
6350 | break; | |
6351 | #endif | |
6352 | case OPTION_SFRAME: | |
6353 | dump_sframe_section_info = true; | |
6354 | if (optarg) | |
6355 | dump_sframe_section_name = xstrdup (optarg); | |
6356 | seenflag = true; | |
6357 | break; | |
6358 | case 'G': | |
6359 | dump_stab_section_info = true; | |
6360 | seenflag = true; | |
6361 | break; | |
6362 | case 's': | |
6363 | dump_section_contents = true; | |
6364 | seenflag = true; | |
6365 | break; | |
6366 | case 'r': | |
6367 | dump_reloc_info = true; | |
6368 | seenflag = true; | |
6369 | break; | |
6370 | case 'R': | |
6371 | dump_dynamic_reloc_info = true; | |
6372 | seenflag = true; | |
6373 | break; | |
6374 | case 'a': | |
6375 | dump_ar_hdrs = true; | |
6376 | seenflag = true; | |
6377 | break; | |
6378 | case 'h': | |
6379 | dump_section_headers = true; | |
6380 | seenflag = true; | |
6381 | break; | |
6382 | case 'v': | |
6383 | case 'V': | |
6384 | show_version = true; | |
6385 | seenflag = true; | |
6386 | break; | |
6387 | ||
6388 | case 'U': | |
6389 | if (streq (optarg, "default") || streq (optarg, "d")) | |
6390 | unicode_display = unicode_default; | |
6391 | else if (streq (optarg, "locale") || streq (optarg, "l")) | |
6392 | unicode_display = unicode_locale; | |
6393 | else if (streq (optarg, "escape") || streq (optarg, "e")) | |
6394 | unicode_display = unicode_escape; | |
6395 | else if (streq (optarg, "invalid") || streq (optarg, "i")) | |
6396 | unicode_display = unicode_invalid; | |
6397 | else if (streq (optarg, "hex") || streq (optarg, "x")) | |
6398 | unicode_display = unicode_hex; | |
6399 | else if (streq (optarg, "highlight") || streq (optarg, "h")) | |
6400 | unicode_display = unicode_highlight; | |
6401 | else | |
6402 | fatal (_("invalid argument to -U/--unicode: %s"), optarg); | |
6403 | break; | |
6404 | ||
6405 | case 'H': | |
6406 | usage (stdout, 0); | |
6407 | /* No need to set seenflag or to break - usage() does not return. */ | |
6408 | default: | |
6409 | usage (stderr, 1); | |
6410 | } | |
6411 | } | |
6412 | ||
6413 | if (disassembler_color == on_if_terminal_output) | |
6414 | disassembler_color = isatty (1) ? on : off; | |
6415 | ||
6416 | if (show_version) | |
6417 | print_version ("objdump"); | |
6418 | ||
6419 | if (!seenflag) | |
6420 | usage (stderr, 2); | |
6421 | ||
6422 | dump_any_debugging = (dump_debugging | |
6423 | || dump_dwarf_section_info | |
6424 | || process_links | |
6425 | || with_source_code); | |
6426 | ||
6427 | if (formats_info) | |
6428 | exit_status = display_info (); | |
6429 | else | |
6430 | { | |
6431 | if (optind == argc) | |
6432 | display_file ("a.out", target); | |
6433 | else | |
6434 | for (; optind < argc;) | |
6435 | { | |
6436 | display_file (argv[optind], target); | |
6437 | optind++; | |
6438 | } | |
6439 | } | |
6440 | ||
6441 | free_only_list (); | |
6442 | free (dump_ctf_section_name); | |
6443 | free (dump_ctf_parent_name); | |
6444 | free ((void *) source_comment); | |
6445 | free (dump_ctf_parent_section_name); | |
6446 | ||
6447 | return exit_status; | |
6448 | } |