PR 3182
[deliverable/binutils-gdb.git] / binutils / objcopy.c
1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006
4 Free Software Foundation, Inc.
5
6 This file is part of GNU Binutils.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
21 02110-1301, USA. */
22 \f
23 #include "bfd.h"
24 #include "progress.h"
25 #include "bucomm.h"
26 #include "getopt.h"
27 #include "libiberty.h"
28 #include "budbg.h"
29 #include "filenames.h"
30 #include "fnmatch.h"
31 #include "elf-bfd.h"
32 #include <sys/stat.h>
33 #include "libbfd.h"
34
35 /* A list of symbols to explicitly strip out, or to keep. A linked
36 list is good enough for a small number from the command line, but
37 this will slow things down a lot if many symbols are being
38 deleted. */
39
40 struct symlist
41 {
42 const char *name;
43 struct symlist *next;
44 };
45
46 /* A list to support redefine_sym. */
47 struct redefine_node
48 {
49 char *source;
50 char *target;
51 struct redefine_node *next;
52 };
53
54 typedef struct section_rename
55 {
56 const char * old_name;
57 const char * new_name;
58 flagword flags;
59 struct section_rename * next;
60 }
61 section_rename;
62
63 /* List of sections to be renamed. */
64 static section_rename *section_rename_list;
65
66 #define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;}
67
68 static asymbol **isympp = NULL; /* Input symbols. */
69 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
70
71 /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */
72 static int copy_byte = -1;
73 static int interleave = 4;
74
75 static bfd_boolean verbose; /* Print file and target names. */
76 static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
77 static int status = 0; /* Exit status. */
78
79 enum strip_action
80 {
81 STRIP_UNDEF,
82 STRIP_NONE, /* Don't strip. */
83 STRIP_DEBUG, /* Strip all debugger symbols. */
84 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
85 STRIP_NONDEBUG, /* Strip everything but debug info. */
86 STRIP_ALL /* Strip all symbols. */
87 };
88
89 /* Which symbols to remove. */
90 static enum strip_action strip_symbols;
91
92 enum locals_action
93 {
94 LOCALS_UNDEF,
95 LOCALS_START_L, /* Discard locals starting with L. */
96 LOCALS_ALL /* Discard all locals. */
97 };
98
99 /* Which local symbols to remove. Overrides STRIP_ALL. */
100 static enum locals_action discard_locals;
101
102 /* What kind of change to perform. */
103 enum change_action
104 {
105 CHANGE_IGNORE,
106 CHANGE_MODIFY,
107 CHANGE_SET
108 };
109
110 /* Structure used to hold lists of sections and actions to take. */
111 struct section_list
112 {
113 struct section_list * next; /* Next section to change. */
114 const char * name; /* Section name. */
115 bfd_boolean used; /* Whether this entry was used. */
116 bfd_boolean remove; /* Whether to remove this section. */
117 bfd_boolean copy; /* Whether to copy this section. */
118 enum change_action change_vma;/* Whether to change or set VMA. */
119 bfd_vma vma_val; /* Amount to change by or set to. */
120 enum change_action change_lma;/* Whether to change or set LMA. */
121 bfd_vma lma_val; /* Amount to change by or set to. */
122 bfd_boolean set_flags; /* Whether to set the section flags. */
123 flagword flags; /* What to set the section flags to. */
124 };
125
126 static struct section_list *change_sections;
127
128 /* TRUE if some sections are to be removed. */
129 static bfd_boolean sections_removed;
130
131 /* TRUE if only some sections are to be copied. */
132 static bfd_boolean sections_copied;
133
134 /* Changes to the start address. */
135 static bfd_vma change_start = 0;
136 static bfd_boolean set_start_set = FALSE;
137 static bfd_vma set_start;
138
139 /* Changes to section addresses. */
140 static bfd_vma change_section_address = 0;
141
142 /* Filling gaps between sections. */
143 static bfd_boolean gap_fill_set = FALSE;
144 static bfd_byte gap_fill = 0;
145
146 /* Pad to a given address. */
147 static bfd_boolean pad_to_set = FALSE;
148 static bfd_vma pad_to;
149
150 /* Use alternative machine code? */
151 static unsigned long use_alt_mach_code = 0;
152
153 /* Output BFD flags user wants to set or clear */
154 static flagword bfd_flags_to_set;
155 static flagword bfd_flags_to_clear;
156
157 /* List of sections to add. */
158 struct section_add
159 {
160 /* Next section to add. */
161 struct section_add *next;
162 /* Name of section to add. */
163 const char *name;
164 /* Name of file holding section contents. */
165 const char *filename;
166 /* Size of file. */
167 size_t size;
168 /* Contents of file. */
169 bfd_byte *contents;
170 /* BFD section, after it has been added. */
171 asection *section;
172 };
173
174 /* List of sections to add to the output BFD. */
175 static struct section_add *add_sections;
176
177 /* If non-NULL the argument to --add-gnu-debuglink.
178 This should be the filename to store in the .gnu_debuglink section. */
179 static const char * gnu_debuglink_filename = NULL;
180
181 /* Whether to convert debugging information. */
182 static bfd_boolean convert_debugging = FALSE;
183
184 /* Whether to change the leading character in symbol names. */
185 static bfd_boolean change_leading_char = FALSE;
186
187 /* Whether to remove the leading character from global symbol names. */
188 static bfd_boolean remove_leading_char = FALSE;
189
190 /* Whether to permit wildcard in symbol comparison. */
191 static bfd_boolean wildcard = FALSE;
192
193 /* True if --localize-hidden is in effect. */
194 static bfd_boolean localize_hidden = FALSE;
195
196 /* List of symbols to strip, keep, localize, keep-global, weaken,
197 or redefine. */
198 static struct symlist *strip_specific_list = NULL;
199 static struct symlist *strip_unneeded_list = NULL;
200 static struct symlist *keep_specific_list = NULL;
201 static struct symlist *localize_specific_list = NULL;
202 static struct symlist *globalize_specific_list = NULL;
203 static struct symlist *keepglobal_specific_list = NULL;
204 static struct symlist *weaken_specific_list = NULL;
205 static struct redefine_node *redefine_sym_list = NULL;
206
207 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
208 static bfd_boolean weaken = FALSE;
209
210 /* If this is TRUE, we retain BSF_FILE symbols. */
211 static bfd_boolean keep_file_symbols = FALSE;
212
213 /* Prefix symbols/sections. */
214 static char *prefix_symbols_string = 0;
215 static char *prefix_sections_string = 0;
216 static char *prefix_alloc_sections_string = 0;
217
218 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
219 enum command_line_switch
220 {
221 OPTION_ADD_SECTION=150,
222 OPTION_CHANGE_ADDRESSES,
223 OPTION_CHANGE_LEADING_CHAR,
224 OPTION_CHANGE_START,
225 OPTION_CHANGE_SECTION_ADDRESS,
226 OPTION_CHANGE_SECTION_LMA,
227 OPTION_CHANGE_SECTION_VMA,
228 OPTION_CHANGE_WARNINGS,
229 OPTION_DEBUGGING,
230 OPTION_GAP_FILL,
231 OPTION_NO_CHANGE_WARNINGS,
232 OPTION_PAD_TO,
233 OPTION_REMOVE_LEADING_CHAR,
234 OPTION_SET_SECTION_FLAGS,
235 OPTION_SET_START,
236 OPTION_STRIP_UNNEEDED,
237 OPTION_WEAKEN,
238 OPTION_REDEFINE_SYM,
239 OPTION_REDEFINE_SYMS,
240 OPTION_SREC_LEN,
241 OPTION_SREC_FORCES3,
242 OPTION_STRIP_SYMBOLS,
243 OPTION_STRIP_UNNEEDED_SYMBOL,
244 OPTION_STRIP_UNNEEDED_SYMBOLS,
245 OPTION_KEEP_SYMBOLS,
246 OPTION_LOCALIZE_HIDDEN,
247 OPTION_LOCALIZE_SYMBOLS,
248 OPTION_GLOBALIZE_SYMBOL,
249 OPTION_GLOBALIZE_SYMBOLS,
250 OPTION_KEEPGLOBAL_SYMBOLS,
251 OPTION_WEAKEN_SYMBOLS,
252 OPTION_RENAME_SECTION,
253 OPTION_ALT_MACH_CODE,
254 OPTION_PREFIX_SYMBOLS,
255 OPTION_PREFIX_SECTIONS,
256 OPTION_PREFIX_ALLOC_SECTIONS,
257 OPTION_FORMATS_INFO,
258 OPTION_ADD_GNU_DEBUGLINK,
259 OPTION_ONLY_KEEP_DEBUG,
260 OPTION_KEEP_FILE_SYMBOLS,
261 OPTION_READONLY_TEXT,
262 OPTION_WRITABLE_TEXT,
263 OPTION_PURE,
264 OPTION_IMPURE
265 };
266
267 /* Options to handle if running as "strip". */
268
269 static struct option strip_options[] =
270 {
271 {"discard-all", no_argument, 0, 'x'},
272 {"discard-locals", no_argument, 0, 'X'},
273 {"format", required_argument, 0, 'F'}, /* Obsolete */
274 {"help", no_argument, 0, 'h'},
275 {"info", no_argument, 0, OPTION_FORMATS_INFO},
276 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
277 {"input-target", required_argument, 0, 'I'},
278 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
279 {"keep-symbol", required_argument, 0, 'K'},
280 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
281 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
282 {"output-target", required_argument, 0, 'O'},
283 {"output-file", required_argument, 0, 'o'},
284 {"preserve-dates", no_argument, 0, 'p'},
285 {"remove-section", required_argument, 0, 'R'},
286 {"strip-all", no_argument, 0, 's'},
287 {"strip-debug", no_argument, 0, 'S'},
288 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
289 {"strip-symbol", required_argument, 0, 'N'},
290 {"target", required_argument, 0, 'F'},
291 {"verbose", no_argument, 0, 'v'},
292 {"version", no_argument, 0, 'V'},
293 {"wildcard", no_argument, 0, 'w'},
294 {0, no_argument, 0, 0}
295 };
296
297 /* Options to handle if running as "objcopy". */
298
299 static struct option copy_options[] =
300 {
301 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
302 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
303 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
304 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
305 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
306 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
307 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
308 {"binary-architecture", required_argument, 0, 'B'},
309 {"byte", required_argument, 0, 'b'},
310 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
311 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
312 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
313 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
314 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
315 {"change-start", required_argument, 0, OPTION_CHANGE_START},
316 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
317 {"debugging", no_argument, 0, OPTION_DEBUGGING},
318 {"discard-all", no_argument, 0, 'x'},
319 {"discard-locals", no_argument, 0, 'X'},
320 {"format", required_argument, 0, 'F'}, /* Obsolete */
321 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
322 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
323 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
324 {"help", no_argument, 0, 'h'},
325 {"impure", no_argument, 0, OPTION_IMPURE},
326 {"info", no_argument, 0, OPTION_FORMATS_INFO},
327 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
328 {"input-target", required_argument, 0, 'I'},
329 {"interleave", required_argument, 0, 'i'},
330 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
331 {"keep-global-symbol", required_argument, 0, 'G'},
332 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
333 {"keep-symbol", required_argument, 0, 'K'},
334 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
335 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
336 {"localize-symbol", required_argument, 0, 'L'},
337 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
338 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
339 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
340 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
341 {"only-section", required_argument, 0, 'j'},
342 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
343 {"output-target", required_argument, 0, 'O'},
344 {"pad-to", required_argument, 0, OPTION_PAD_TO},
345 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
346 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
347 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
348 {"preserve-dates", no_argument, 0, 'p'},
349 {"pure", no_argument, 0, OPTION_PURE},
350 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
351 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
352 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
353 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
354 {"remove-section", required_argument, 0, 'R'},
355 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
356 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
357 {"set-start", required_argument, 0, OPTION_SET_START},
358 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
359 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
360 {"strip-all", no_argument, 0, 'S'},
361 {"strip-debug", no_argument, 0, 'g'},
362 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
363 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
364 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
365 {"strip-symbol", required_argument, 0, 'N'},
366 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
367 {"target", required_argument, 0, 'F'},
368 {"verbose", no_argument, 0, 'v'},
369 {"version", no_argument, 0, 'V'},
370 {"weaken", no_argument, 0, OPTION_WEAKEN},
371 {"weaken-symbol", required_argument, 0, 'W'},
372 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
373 {"wildcard", no_argument, 0, 'w'},
374 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
375 {0, no_argument, 0, 0}
376 };
377
378 /* IMPORTS */
379 extern char *program_name;
380
381 /* This flag distinguishes between strip and objcopy:
382 1 means this is 'strip'; 0 means this is 'objcopy'.
383 -1 means if we should use argv[0] to decide. */
384 extern int is_strip;
385
386 /* The maximum length of an S record. This variable is declared in srec.c
387 and can be modified by the --srec-len parameter. */
388 extern unsigned int Chunk;
389
390 /* Restrict the generation of Srecords to type S3 only.
391 This variable is declare in bfd/srec.c and can be toggled
392 on by the --srec-forceS3 command line switch. */
393 extern bfd_boolean S3Forced;
394
395 /* Defined in bfd/binary.c. Used to set architecture and machine of input
396 binary files. */
397 extern enum bfd_architecture bfd_external_binary_architecture;
398 extern unsigned long bfd_external_machine;
399
400 /* Forward declarations. */
401 static void setup_section (bfd *, asection *, void *);
402 static void setup_bfd_headers (bfd *, bfd *);
403 static void copy_section (bfd *, asection *, void *);
404 static void get_sections (bfd *, asection *, void *);
405 static int compare_section_lma (const void *, const void *);
406 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
407 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
408 static const char *lookup_sym_redefinition (const char *);
409 \f
410 static void
411 copy_usage (FILE *stream, int exit_status)
412 {
413 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
414 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
415 fprintf (stream, _(" The options are:\n"));
416 fprintf (stream, _("\
417 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
418 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
419 -B --binary-architecture <arch> Set arch of output file, when input is binary\n\
420 -F --target <bfdname> Set both input and output format to <bfdname>\n\
421 --debugging Convert debugging information, if possible\n\
422 -p --preserve-dates Copy modified/access timestamps to the output\n\
423 -j --only-section <name> Only copy section <name> into the output\n\
424 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
425 -R --remove-section <name> Remove section <name> from the output\n\
426 -S --strip-all Remove all symbol and relocation information\n\
427 -g --strip-debug Remove all debugging symbols & sections\n\
428 --strip-unneeded Remove all symbols not needed by relocations\n\
429 -N --strip-symbol <name> Do not copy symbol <name>\n\
430 --strip-unneeded-symbol <name>\n\
431 Do not copy symbol <name> unless needed by\n\
432 relocations\n\
433 --only-keep-debug Strip everything but the debug information\n\
434 -K --keep-symbol <name> Do not strip symbol <name>\n\
435 --keep-file-symbols Do not strip file symbol(s)\n\
436 --localize-hidden Turn all ELF hidden symbols into locals\n\
437 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
438 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
439 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
440 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
441 --weaken Force all global symbols to be marked as weak\n\
442 -w --wildcard Permit wildcard in symbol comparison\n\
443 -x --discard-all Remove all non-global symbols\n\
444 -X --discard-locals Remove any compiler-generated symbols\n\
445 -i --interleave <number> Only copy one out of every <number> bytes\n\
446 -b --byte <num> Select byte <num> in every interleaved block\n\
447 --gap-fill <val> Fill gaps between sections with <val>\n\
448 --pad-to <addr> Pad the last section up to address <addr>\n\
449 --set-start <addr> Set the start address to <addr>\n\
450 {--change-start|--adjust-start} <incr>\n\
451 Add <incr> to the start address\n\
452 {--change-addresses|--adjust-vma} <incr>\n\
453 Add <incr> to LMA, VMA and start addresses\n\
454 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
455 Change LMA and VMA of section <name> by <val>\n\
456 --change-section-lma <name>{=|+|-}<val>\n\
457 Change the LMA of section <name> by <val>\n\
458 --change-section-vma <name>{=|+|-}<val>\n\
459 Change the VMA of section <name> by <val>\n\
460 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
461 Warn if a named section does not exist\n\
462 --set-section-flags <name>=<flags>\n\
463 Set section <name>'s properties to <flags>\n\
464 --add-section <name>=<file> Add section <name> found in <file> to output\n\
465 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
466 --change-leading-char Force output format's leading character style\n\
467 --remove-leading-char Remove leading character from global symbols\n\
468 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
469 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
470 listed in <file>\n\
471 --srec-len <number> Restrict the length of generated Srecords\n\
472 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
473 --strip-symbols <file> -N for all symbols listed in <file>\n\
474 --strip-unneeded-symbols <file>\n\
475 --strip-unneeded-symbol for all symbols listed\n\
476 in <file>\n\
477 --keep-symbols <file> -K for all symbols listed in <file>\n\
478 --localize-symbols <file> -L for all symbols listed in <file>\n\
479 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
480 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
481 --weaken-symbols <file> -W for all symbols listed in <file>\n\
482 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
483 --writable-text Mark the output text as writable\n\
484 --readonly-text Make the output text write protected\n\
485 --pure Mark the output file as demand paged\n\
486 --impure Mark the output file as impure\n\
487 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
488 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
489 --prefix-alloc-sections <prefix>\n\
490 Add <prefix> to start of every allocatable\n\
491 section name\n\
492 -v --verbose List all object files modified\n\
493 @<file> Read options from <file>\n\
494 -V --version Display this program's version number\n\
495 -h --help Display this output\n\
496 --info List object formats & architectures supported\n\
497 "));
498 list_supported_targets (program_name, stream);
499 if (exit_status == 0)
500 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
501 exit (exit_status);
502 }
503
504 static void
505 strip_usage (FILE *stream, int exit_status)
506 {
507 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
508 fprintf (stream, _(" Removes symbols and sections from files\n"));
509 fprintf (stream, _(" The options are:\n"));
510 fprintf (stream, _("\
511 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
512 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
513 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
514 -p --preserve-dates Copy modified/access timestamps to the output\n\
515 -R --remove-section=<name> Remove section <name> from the output\n\
516 -s --strip-all Remove all symbol and relocation information\n\
517 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
518 --strip-unneeded Remove all symbols not needed by relocations\n\
519 --only-keep-debug Strip everything but the debug information\n\
520 -N --strip-symbol=<name> Do not copy symbol <name>\n\
521 -K --keep-symbol=<name> Do not strip symbol <name>\n\
522 --keep-file-symbols Do not strip file symbol(s)\n\
523 -w --wildcard Permit wildcard in symbol comparison\n\
524 -x --discard-all Remove all non-global symbols\n\
525 -X --discard-locals Remove any compiler-generated symbols\n\
526 -v --verbose List all object files modified\n\
527 -V --version Display this program's version number\n\
528 -h --help Display this output\n\
529 --info List object formats & architectures supported\n\
530 -o <file> Place stripped output into <file>\n\
531 "));
532
533 list_supported_targets (program_name, stream);
534 if (exit_status == 0)
535 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
536 exit (exit_status);
537 }
538
539 /* Parse section flags into a flagword, with a fatal error if the
540 string can't be parsed. */
541
542 static flagword
543 parse_flags (const char *s)
544 {
545 flagword ret;
546 const char *snext;
547 int len;
548
549 ret = SEC_NO_FLAGS;
550
551 do
552 {
553 snext = strchr (s, ',');
554 if (snext == NULL)
555 len = strlen (s);
556 else
557 {
558 len = snext - s;
559 ++snext;
560 }
561
562 if (0) ;
563 #define PARSE_FLAG(fname,fval) \
564 else if (strncasecmp (fname, s, len) == 0) ret |= fval
565 PARSE_FLAG ("alloc", SEC_ALLOC);
566 PARSE_FLAG ("load", SEC_LOAD);
567 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
568 PARSE_FLAG ("readonly", SEC_READONLY);
569 PARSE_FLAG ("debug", SEC_DEBUGGING);
570 PARSE_FLAG ("code", SEC_CODE);
571 PARSE_FLAG ("data", SEC_DATA);
572 PARSE_FLAG ("rom", SEC_ROM);
573 PARSE_FLAG ("share", SEC_COFF_SHARED);
574 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
575 #undef PARSE_FLAG
576 else
577 {
578 char *copy;
579
580 copy = xmalloc (len + 1);
581 strncpy (copy, s, len);
582 copy[len] = '\0';
583 non_fatal (_("unrecognized section flag `%s'"), copy);
584 fatal (_("supported flags: %s"),
585 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
586 }
587
588 s = snext;
589 }
590 while (s != NULL);
591
592 return ret;
593 }
594
595 /* Find and optionally add an entry in the change_sections list. */
596
597 static struct section_list *
598 find_section_list (const char *name, bfd_boolean add)
599 {
600 struct section_list *p;
601
602 for (p = change_sections; p != NULL; p = p->next)
603 if (strcmp (p->name, name) == 0)
604 return p;
605
606 if (! add)
607 return NULL;
608
609 p = xmalloc (sizeof (struct section_list));
610 p->name = name;
611 p->used = FALSE;
612 p->remove = FALSE;
613 p->copy = FALSE;
614 p->change_vma = CHANGE_IGNORE;
615 p->change_lma = CHANGE_IGNORE;
616 p->vma_val = 0;
617 p->lma_val = 0;
618 p->set_flags = FALSE;
619 p->flags = 0;
620
621 p->next = change_sections;
622 change_sections = p;
623
624 return p;
625 }
626
627 /* Add a symbol to strip_specific_list. */
628
629 static void
630 add_specific_symbol (const char *name, struct symlist **list)
631 {
632 struct symlist *tmp_list;
633
634 tmp_list = xmalloc (sizeof (struct symlist));
635 tmp_list->name = name;
636 tmp_list->next = *list;
637 *list = tmp_list;
638 }
639
640 /* Add symbols listed in `filename' to strip_specific_list. */
641
642 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
643 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
644
645 static void
646 add_specific_symbols (const char *filename, struct symlist **list)
647 {
648 off_t size;
649 FILE * f;
650 char * line;
651 char * buffer;
652 unsigned int line_count;
653
654 size = get_file_size (filename);
655 if (size == 0)
656 {
657 status = 1;
658 return;
659 }
660
661 buffer = xmalloc (size + 2);
662 f = fopen (filename, FOPEN_RT);
663 if (f == NULL)
664 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
665
666 if (fread (buffer, 1, size, f) == 0 || ferror (f))
667 fatal (_("%s: fread failed"), filename);
668
669 fclose (f);
670 buffer [size] = '\n';
671 buffer [size + 1] = '\0';
672
673 line_count = 1;
674
675 for (line = buffer; * line != '\0'; line ++)
676 {
677 char * eol;
678 char * name;
679 char * name_end;
680 int finished = FALSE;
681
682 for (eol = line;; eol ++)
683 {
684 switch (* eol)
685 {
686 case '\n':
687 * eol = '\0';
688 /* Cope with \n\r. */
689 if (eol[1] == '\r')
690 ++ eol;
691 finished = TRUE;
692 break;
693
694 case '\r':
695 * eol = '\0';
696 /* Cope with \r\n. */
697 if (eol[1] == '\n')
698 ++ eol;
699 finished = TRUE;
700 break;
701
702 case 0:
703 finished = TRUE;
704 break;
705
706 case '#':
707 /* Line comment, Terminate the line here, in case a
708 name is present and then allow the rest of the
709 loop to find the real end of the line. */
710 * eol = '\0';
711 break;
712
713 default:
714 break;
715 }
716
717 if (finished)
718 break;
719 }
720
721 /* A name may now exist somewhere between 'line' and 'eol'.
722 Strip off leading whitespace and trailing whitespace,
723 then add it to the list. */
724 for (name = line; IS_WHITESPACE (* name); name ++)
725 ;
726 for (name_end = name;
727 (! IS_WHITESPACE (* name_end))
728 && (! IS_LINE_TERMINATOR (* name_end));
729 name_end ++)
730 ;
731
732 if (! IS_LINE_TERMINATOR (* name_end))
733 {
734 char * extra;
735
736 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
737 ;
738
739 if (! IS_LINE_TERMINATOR (* extra))
740 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
741 filename, line_count);
742 }
743
744 * name_end = '\0';
745
746 if (name_end > name)
747 add_specific_symbol (name, list);
748
749 /* Advance line pointer to end of line. The 'eol ++' in the for
750 loop above will then advance us to the start of the next line. */
751 line = eol;
752 line_count ++;
753 }
754 }
755
756 /* See whether a symbol should be stripped or kept based on
757 strip_specific_list and keep_symbols. */
758
759 static bfd_boolean
760 is_specified_symbol (const char *name, struct symlist *list)
761 {
762 struct symlist *tmp_list;
763
764 if (wildcard)
765 {
766 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
767 if (*(tmp_list->name) != '!')
768 {
769 if (!fnmatch (tmp_list->name, name, 0))
770 return TRUE;
771 }
772 else
773 {
774 if (fnmatch (tmp_list->name + 1, name, 0))
775 return TRUE;
776 }
777 }
778 else
779 {
780 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
781 if (strcmp (name, tmp_list->name) == 0)
782 return TRUE;
783 }
784
785 return FALSE;
786 }
787
788 /* See if a section is being removed. */
789
790 static bfd_boolean
791 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
792 {
793 if (sections_removed || sections_copied)
794 {
795 struct section_list *p;
796
797 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE);
798
799 if (sections_removed && p != NULL && p->remove)
800 return TRUE;
801 if (sections_copied && (p == NULL || ! p->copy))
802 return TRUE;
803 }
804
805 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
806 {
807 if (strip_symbols == STRIP_DEBUG
808 || strip_symbols == STRIP_UNNEEDED
809 || strip_symbols == STRIP_ALL
810 || discard_locals == LOCALS_ALL
811 || convert_debugging)
812 return TRUE;
813
814 if (strip_symbols == STRIP_NONDEBUG)
815 return FALSE;
816 }
817
818 /* PR binutils/3166
819 Group sections look like debugging sections but they are not.
820 (They have a non-zero size but they are not ALLOCated). */
821 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0
822 && strip_symbols == STRIP_NONDEBUG)
823 return TRUE;
824
825 return FALSE;
826 }
827
828 /* Return true if SYM is a hidden symbol. */
829
830 static bfd_boolean
831 is_hidden_symbol (asymbol *sym)
832 {
833 elf_symbol_type *elf_sym;
834
835 elf_sym = elf_symbol_from (sym->the_bfd, sym);
836 if (elf_sym != NULL)
837 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
838 {
839 case STV_HIDDEN:
840 case STV_INTERNAL:
841 return TRUE;
842 }
843 return FALSE;
844 }
845
846 /* Choose which symbol entries to copy; put the result in OSYMS.
847 We don't copy in place, because that confuses the relocs.
848 Return the number of symbols to print. */
849
850 static unsigned int
851 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
852 asymbol **isyms, long symcount)
853 {
854 asymbol **from = isyms, **to = osyms;
855 long src_count = 0, dst_count = 0;
856 int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
857 == HAS_RELOC;
858
859 for (; src_count < symcount; src_count++)
860 {
861 asymbol *sym = from[src_count];
862 flagword flags = sym->flags;
863 char *name = (char *) bfd_asymbol_name (sym);
864 int keep;
865 bfd_boolean undefined;
866 bfd_boolean rem_leading_char;
867 bfd_boolean add_leading_char;
868
869 undefined = bfd_is_und_section (bfd_get_section (sym));
870
871 if (redefine_sym_list)
872 {
873 char *old_name, *new_name;
874
875 old_name = (char *) bfd_asymbol_name (sym);
876 new_name = (char *) lookup_sym_redefinition (old_name);
877 bfd_asymbol_name (sym) = new_name;
878 name = new_name;
879 }
880
881 /* Check if we will remove the current leading character. */
882 rem_leading_char =
883 (name[0] == bfd_get_symbol_leading_char (abfd))
884 && (change_leading_char
885 || (remove_leading_char
886 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
887 || undefined
888 || bfd_is_com_section (bfd_get_section (sym)))));
889
890 /* Check if we will add a new leading character. */
891 add_leading_char =
892 change_leading_char
893 && (bfd_get_symbol_leading_char (obfd) != '\0')
894 && (bfd_get_symbol_leading_char (abfd) == '\0'
895 || (name[0] == bfd_get_symbol_leading_char (abfd)));
896
897 /* Short circuit for change_leading_char if we can do it in-place. */
898 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
899 {
900 name[0] = bfd_get_symbol_leading_char (obfd);
901 bfd_asymbol_name (sym) = name;
902 rem_leading_char = FALSE;
903 add_leading_char = FALSE;
904 }
905
906 /* Remove leading char. */
907 if (rem_leading_char)
908 bfd_asymbol_name (sym) = ++name;
909
910 /* Add new leading char and/or prefix. */
911 if (add_leading_char || prefix_symbols_string)
912 {
913 char *n, *ptr;
914
915 ptr = n = xmalloc (1 + strlen (prefix_symbols_string)
916 + strlen (name) + 1);
917 if (add_leading_char)
918 *ptr++ = bfd_get_symbol_leading_char (obfd);
919
920 if (prefix_symbols_string)
921 {
922 strcpy (ptr, prefix_symbols_string);
923 ptr += strlen (prefix_symbols_string);
924 }
925
926 strcpy (ptr, name);
927 bfd_asymbol_name (sym) = n;
928 name = n;
929 }
930
931 if (strip_symbols == STRIP_ALL)
932 keep = 0;
933 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
934 || ((flags & BSF_SECTION_SYM) != 0
935 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
936 & BSF_KEEP) != 0))
937 keep = 1;
938 else if (relocatable /* Relocatable file. */
939 && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
940 keep = 1;
941 else if (bfd_decode_symclass (sym) == 'I')
942 /* Global symbols in $idata sections need to be retained
943 even if relocatable is FALSE. External users of the
944 library containing the $idata section may reference these
945 symbols. */
946 keep = 1;
947 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
948 || (flags & BSF_WEAK) != 0
949 || undefined
950 || bfd_is_com_section (bfd_get_section (sym)))
951 keep = strip_symbols != STRIP_UNNEEDED;
952 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
953 keep = (strip_symbols != STRIP_DEBUG
954 && strip_symbols != STRIP_UNNEEDED
955 && ! convert_debugging);
956 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
957 /* COMDAT sections store special information in local
958 symbols, so we cannot risk stripping any of them. */
959 keep = 1;
960 else /* Local symbol. */
961 keep = (strip_symbols != STRIP_UNNEEDED
962 && (discard_locals != LOCALS_ALL
963 && (discard_locals != LOCALS_START_L
964 || ! bfd_is_local_label (abfd, sym))));
965
966 if (keep && is_specified_symbol (name, strip_specific_list))
967 keep = 0;
968 if (keep
969 && !(flags & BSF_KEEP)
970 && is_specified_symbol (name, strip_unneeded_list))
971 keep = 0;
972 if (!keep
973 && ((keep_file_symbols && (flags & BSF_FILE))
974 || is_specified_symbol (name, keep_specific_list)))
975 keep = 1;
976 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
977 keep = 0;
978
979 if (keep)
980 {
981 if ((flags & BSF_GLOBAL) != 0
982 && (weaken || is_specified_symbol (name, weaken_specific_list)))
983 {
984 sym->flags &= ~ BSF_GLOBAL;
985 sym->flags |= BSF_WEAK;
986 }
987
988 if (!undefined
989 && (flags & (BSF_GLOBAL | BSF_WEAK))
990 && (is_specified_symbol (name, localize_specific_list)
991 || (keepglobal_specific_list != NULL
992 && ! is_specified_symbol (name, keepglobal_specific_list))
993 || (localize_hidden && is_hidden_symbol (sym))))
994 {
995 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
996 sym->flags |= BSF_LOCAL;
997 }
998
999 if (!undefined
1000 && (flags & BSF_LOCAL)
1001 && is_specified_symbol (name, globalize_specific_list))
1002 {
1003 sym->flags &= ~ BSF_LOCAL;
1004 sym->flags |= BSF_GLOBAL;
1005 }
1006
1007 to[dst_count++] = sym;
1008 }
1009 }
1010
1011 to[dst_count] = NULL;
1012
1013 return dst_count;
1014 }
1015
1016 /* Find the redefined name of symbol SOURCE. */
1017
1018 static const char *
1019 lookup_sym_redefinition (const char *source)
1020 {
1021 struct redefine_node *list;
1022
1023 for (list = redefine_sym_list; list != NULL; list = list->next)
1024 if (strcmp (source, list->source) == 0)
1025 return list->target;
1026
1027 return source;
1028 }
1029
1030 /* Add a node to a symbol redefine list. */
1031
1032 static void
1033 redefine_list_append (const char *cause, const char *source, const char *target)
1034 {
1035 struct redefine_node **p;
1036 struct redefine_node *list;
1037 struct redefine_node *new_node;
1038
1039 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1040 {
1041 if (strcmp (source, list->source) == 0)
1042 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1043 cause, source);
1044
1045 if (strcmp (target, list->target) == 0)
1046 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1047 cause, target);
1048 }
1049
1050 new_node = xmalloc (sizeof (struct redefine_node));
1051
1052 new_node->source = strdup (source);
1053 new_node->target = strdup (target);
1054 new_node->next = NULL;
1055
1056 *p = new_node;
1057 }
1058
1059 /* Handle the --redefine-syms option. Read lines containing "old new"
1060 from the file, and add them to the symbol redefine list. */
1061
1062 static void
1063 add_redefine_syms_file (const char *filename)
1064 {
1065 FILE *file;
1066 char *buf;
1067 size_t bufsize;
1068 size_t len;
1069 size_t outsym_off;
1070 int c, lineno;
1071
1072 file = fopen (filename, "r");
1073 if (file == NULL)
1074 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1075 filename, strerror (errno));
1076
1077 bufsize = 100;
1078 buf = xmalloc (bufsize);
1079
1080 lineno = 1;
1081 c = getc (file);
1082 len = 0;
1083 outsym_off = 0;
1084 while (c != EOF)
1085 {
1086 /* Collect the input symbol name. */
1087 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1088 {
1089 if (c == '#')
1090 goto comment;
1091 buf[len++] = c;
1092 if (len >= bufsize)
1093 {
1094 bufsize *= 2;
1095 buf = xrealloc (buf, bufsize);
1096 }
1097 c = getc (file);
1098 }
1099 buf[len++] = '\0';
1100 if (c == EOF)
1101 break;
1102
1103 /* Eat white space between the symbol names. */
1104 while (IS_WHITESPACE (c))
1105 c = getc (file);
1106 if (c == '#' || IS_LINE_TERMINATOR (c))
1107 goto comment;
1108 if (c == EOF)
1109 break;
1110
1111 /* Collect the output symbol name. */
1112 outsym_off = len;
1113 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1114 {
1115 if (c == '#')
1116 goto comment;
1117 buf[len++] = c;
1118 if (len >= bufsize)
1119 {
1120 bufsize *= 2;
1121 buf = xrealloc (buf, bufsize);
1122 }
1123 c = getc (file);
1124 }
1125 buf[len++] = '\0';
1126 if (c == EOF)
1127 break;
1128
1129 /* Eat white space at end of line. */
1130 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1131 c = getc (file);
1132 if (c == '#')
1133 goto comment;
1134 /* Handle \r\n. */
1135 if ((c == '\r' && (c = getc (file)) == '\n')
1136 || c == '\n' || c == EOF)
1137 {
1138 end_of_line:
1139 /* Append the redefinition to the list. */
1140 if (buf[0] != '\0')
1141 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1142
1143 lineno++;
1144 len = 0;
1145 outsym_off = 0;
1146 if (c == EOF)
1147 break;
1148 c = getc (file);
1149 continue;
1150 }
1151 else
1152 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1153 comment:
1154 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1155 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1156 buf[len++] = '\0';
1157
1158 /* Eat the rest of the line and finish it. */
1159 while (c != '\n' && c != EOF)
1160 c = getc (file);
1161 goto end_of_line;
1162 }
1163
1164 if (len != 0)
1165 fatal (_("%s:%d: premature end of file"), filename, lineno);
1166
1167 free (buf);
1168 }
1169
1170 /* Copy unkown object file IBFD onto OBFD.
1171 Returns TRUE upon success, FALSE otherwise. */
1172
1173 static bfd_boolean
1174 copy_unknown_object (bfd *ibfd, bfd *obfd)
1175 {
1176 char *cbuf;
1177 int tocopy;
1178 long ncopied;
1179 long size;
1180 struct stat buf;
1181
1182 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1183 {
1184 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1185 return FALSE;
1186 }
1187
1188 size = buf.st_size;
1189 if (size < 0)
1190 {
1191 non_fatal (_("stat returns negative size for `%s'"),
1192 bfd_get_archive_filename (ibfd));
1193 return FALSE;
1194 }
1195
1196 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1197 {
1198 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1199 return FALSE;
1200 }
1201
1202 if (verbose)
1203 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1204 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1205
1206 cbuf = xmalloc (BUFSIZE);
1207 ncopied = 0;
1208 while (ncopied < size)
1209 {
1210 tocopy = size - ncopied;
1211 if (tocopy > BUFSIZE)
1212 tocopy = BUFSIZE;
1213
1214 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1215 != (bfd_size_type) tocopy)
1216 {
1217 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1218 free (cbuf);
1219 return FALSE;
1220 }
1221
1222 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1223 != (bfd_size_type) tocopy)
1224 {
1225 bfd_nonfatal (bfd_get_filename (obfd));
1226 free (cbuf);
1227 return FALSE;
1228 }
1229
1230 ncopied += tocopy;
1231 }
1232
1233 chmod (bfd_get_filename (obfd), buf.st_mode);
1234 free (cbuf);
1235 return TRUE;
1236 }
1237
1238 /* Copy object file IBFD onto OBFD.
1239 Returns TRUE upon success, FALSE otherwise. */
1240
1241 static bfd_boolean
1242 copy_object (bfd *ibfd, bfd *obfd)
1243 {
1244 bfd_vma start;
1245 long symcount;
1246 asection **osections = NULL;
1247 asection *gnu_debuglink_section = NULL;
1248 bfd_size_type *gaps = NULL;
1249 bfd_size_type max_gap = 0;
1250 long symsize;
1251 void *dhandle;
1252 enum bfd_architecture iarch;
1253 unsigned int imach;
1254
1255 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1256 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1257 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1258 fatal (_("Unable to change endianness of input file(s)"));
1259
1260 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1261 {
1262 bfd_nonfatal (bfd_get_filename (obfd));
1263 return FALSE;
1264 }
1265
1266 if (verbose)
1267 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1268 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1269 bfd_get_filename (obfd), bfd_get_target (obfd));
1270
1271 if (set_start_set)
1272 start = set_start;
1273 else
1274 start = bfd_get_start_address (ibfd);
1275 start += change_start;
1276
1277 /* Neither the start address nor the flags
1278 need to be set for a core file. */
1279 if (bfd_get_format (obfd) != bfd_core)
1280 {
1281 flagword flags;
1282
1283 flags = bfd_get_file_flags (ibfd);
1284 flags |= bfd_flags_to_set;
1285 flags &= ~bfd_flags_to_clear;
1286 flags &= bfd_applicable_file_flags (obfd);
1287
1288 if (!bfd_set_start_address (obfd, start)
1289 || !bfd_set_file_flags (obfd, flags))
1290 {
1291 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1292 return FALSE;
1293 }
1294 }
1295
1296 /* Copy architecture of input file to output file. */
1297 iarch = bfd_get_arch (ibfd);
1298 imach = bfd_get_mach (ibfd);
1299 if (!bfd_set_arch_mach (obfd, iarch, imach)
1300 && (ibfd->target_defaulted
1301 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1302 {
1303 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1304 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1305 bfd_get_archive_filename (ibfd));
1306 else
1307 non_fatal (_("Warning: Output file cannot represent architecture `%s'"),
1308 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1309 bfd_get_mach (ibfd)));
1310 return FALSE;
1311 }
1312
1313 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1314 {
1315 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1316 return FALSE;
1317 }
1318
1319 if (isympp)
1320 free (isympp);
1321
1322 if (osympp != isympp)
1323 free (osympp);
1324
1325 isympp = NULL;
1326 osympp = NULL;
1327
1328 symsize = bfd_get_symtab_upper_bound (ibfd);
1329 if (symsize < 0)
1330 {
1331 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1332 return FALSE;
1333 }
1334
1335 osympp = isympp = xmalloc (symsize);
1336 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1337 if (symcount < 0)
1338 {
1339 bfd_nonfatal (bfd_get_filename (ibfd));
1340 return FALSE;
1341 }
1342
1343 /* BFD mandates that all output sections be created and sizes set before
1344 any output is done. Thus, we traverse all sections multiple times. */
1345 bfd_map_over_sections (ibfd, setup_section, obfd);
1346
1347 setup_bfd_headers (ibfd, obfd);
1348
1349 if (add_sections != NULL)
1350 {
1351 struct section_add *padd;
1352 struct section_list *pset;
1353
1354 for (padd = add_sections; padd != NULL; padd = padd->next)
1355 {
1356 flagword flags;
1357
1358 pset = find_section_list (padd->name, FALSE);
1359 if (pset != NULL)
1360 pset->used = TRUE;
1361
1362 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1363 if (pset != NULL && pset->set_flags)
1364 flags = pset->flags | SEC_HAS_CONTENTS;
1365
1366 /* bfd_make_section_with_flags() does not return very helpful
1367 error codes, so check for the most likely user error first. */
1368 if (bfd_get_section_by_name (obfd, padd->name))
1369 {
1370 non_fatal (_("can't add section '%s' - it already exists!"), padd->name);
1371 return FALSE;
1372 }
1373 else
1374 {
1375 padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
1376 if (padd->section == NULL)
1377 {
1378 non_fatal (_("can't create section `%s': %s"),
1379 padd->name, bfd_errmsg (bfd_get_error ()));
1380 return FALSE;
1381 }
1382 }
1383
1384 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1385 {
1386 bfd_nonfatal (bfd_get_filename (obfd));
1387 return FALSE;
1388 }
1389
1390 if (pset != NULL)
1391 {
1392 if (pset->change_vma != CHANGE_IGNORE)
1393 if (! bfd_set_section_vma (obfd, padd->section,
1394 pset->vma_val))
1395 {
1396 bfd_nonfatal (bfd_get_filename (obfd));
1397 return FALSE;
1398 }
1399
1400 if (pset->change_lma != CHANGE_IGNORE)
1401 {
1402 padd->section->lma = pset->lma_val;
1403
1404 if (! bfd_set_section_alignment
1405 (obfd, padd->section,
1406 bfd_section_alignment (obfd, padd->section)))
1407 {
1408 bfd_nonfatal (bfd_get_filename (obfd));
1409 return FALSE;
1410 }
1411 }
1412 }
1413 }
1414 }
1415
1416 if (gnu_debuglink_filename != NULL)
1417 {
1418 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1419 (obfd, gnu_debuglink_filename);
1420
1421 if (gnu_debuglink_section == NULL)
1422 {
1423 bfd_nonfatal (gnu_debuglink_filename);
1424 return FALSE;
1425 }
1426
1427 /* Special processing for PE format files. We
1428 have no way to distinguish PE from COFF here. */
1429 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1430 {
1431 bfd_vma debuglink_vma;
1432 asection * highest_section;
1433 asection * sec;
1434
1435 /* The PE spec requires that all sections be adjacent and sorted
1436 in ascending order of VMA. It also specifies that debug
1437 sections should be last. This is despite the fact that debug
1438 sections are not loaded into memory and so in theory have no
1439 use for a VMA.
1440
1441 This means that the debuglink section must be given a non-zero
1442 VMA which makes it contiguous with other debug sections. So
1443 walk the current section list, find the section with the
1444 highest VMA and start the debuglink section after that one. */
1445 for (sec = obfd->sections, highest_section = NULL;
1446 sec != NULL;
1447 sec = sec->next)
1448 if (sec->vma > 0
1449 && (highest_section == NULL
1450 || sec->vma > highest_section->vma))
1451 highest_section = sec;
1452
1453 if (highest_section)
1454 debuglink_vma = BFD_ALIGN (highest_section->vma
1455 + highest_section->size,
1456 /* FIXME: We ought to be using
1457 COFF_PAGE_SIZE here or maybe
1458 bfd_get_section_alignment() (if it
1459 was set) but since this is for PE
1460 and we know the required alignment
1461 it is easier just to hard code it. */
1462 0x1000);
1463 else
1464 /* Umm, not sure what to do in this case. */
1465 debuglink_vma = 0x1000;
1466
1467 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1468 }
1469 }
1470
1471 if (bfd_count_sections (obfd) == 0)
1472 {
1473 non_fatal (_("there are no sections to be copied!"));
1474 return FALSE;
1475 }
1476
1477 if (gap_fill_set || pad_to_set)
1478 {
1479 asection **set;
1480 unsigned int c, i;
1481
1482 /* We must fill in gaps between the sections and/or we must pad
1483 the last section to a specified address. We do this by
1484 grabbing a list of the sections, sorting them by VMA, and
1485 increasing the section sizes as required to fill the gaps.
1486 We write out the gap contents below. */
1487
1488 c = bfd_count_sections (obfd);
1489 osections = xmalloc (c * sizeof (asection *));
1490 set = osections;
1491 bfd_map_over_sections (obfd, get_sections, &set);
1492
1493 qsort (osections, c, sizeof (asection *), compare_section_lma);
1494
1495 gaps = xmalloc (c * sizeof (bfd_size_type));
1496 memset (gaps, 0, c * sizeof (bfd_size_type));
1497
1498 if (gap_fill_set)
1499 {
1500 for (i = 0; i < c - 1; i++)
1501 {
1502 flagword flags;
1503 bfd_size_type size;
1504 bfd_vma gap_start, gap_stop;
1505
1506 flags = bfd_get_section_flags (obfd, osections[i]);
1507 if ((flags & SEC_HAS_CONTENTS) == 0
1508 || (flags & SEC_LOAD) == 0)
1509 continue;
1510
1511 size = bfd_section_size (obfd, osections[i]);
1512 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1513 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1514 if (gap_start < gap_stop)
1515 {
1516 if (! bfd_set_section_size (obfd, osections[i],
1517 size + (gap_stop - gap_start)))
1518 {
1519 non_fatal (_("Can't fill gap after %s: %s"),
1520 bfd_get_section_name (obfd, osections[i]),
1521 bfd_errmsg (bfd_get_error ()));
1522 status = 1;
1523 break;
1524 }
1525 gaps[i] = gap_stop - gap_start;
1526 if (max_gap < gap_stop - gap_start)
1527 max_gap = gap_stop - gap_start;
1528 }
1529 }
1530 }
1531
1532 if (pad_to_set)
1533 {
1534 bfd_vma lma;
1535 bfd_size_type size;
1536
1537 lma = bfd_section_lma (obfd, osections[c - 1]);
1538 size = bfd_section_size (obfd, osections[c - 1]);
1539 if (lma + size < pad_to)
1540 {
1541 if (! bfd_set_section_size (obfd, osections[c - 1],
1542 pad_to - lma))
1543 {
1544 non_fatal (_("Can't add padding to %s: %s"),
1545 bfd_get_section_name (obfd, osections[c - 1]),
1546 bfd_errmsg (bfd_get_error ()));
1547 status = 1;
1548 }
1549 else
1550 {
1551 gaps[c - 1] = pad_to - (lma + size);
1552 if (max_gap < pad_to - (lma + size))
1553 max_gap = pad_to - (lma + size);
1554 }
1555 }
1556 }
1557 }
1558
1559 /* Symbol filtering must happen after the output sections
1560 have been created, but before their contents are set. */
1561 dhandle = NULL;
1562 if (convert_debugging)
1563 dhandle = read_debugging_info (ibfd, isympp, symcount);
1564
1565 if (strip_symbols == STRIP_DEBUG
1566 || strip_symbols == STRIP_ALL
1567 || strip_symbols == STRIP_UNNEEDED
1568 || strip_symbols == STRIP_NONDEBUG
1569 || discard_locals != LOCALS_UNDEF
1570 || localize_hidden
1571 || strip_specific_list != NULL
1572 || keep_specific_list != NULL
1573 || localize_specific_list != NULL
1574 || globalize_specific_list != NULL
1575 || keepglobal_specific_list != NULL
1576 || weaken_specific_list != NULL
1577 || prefix_symbols_string
1578 || sections_removed
1579 || sections_copied
1580 || convert_debugging
1581 || change_leading_char
1582 || remove_leading_char
1583 || redefine_sym_list
1584 || weaken)
1585 {
1586 /* Mark symbols used in output relocations so that they
1587 are kept, even if they are local labels or static symbols.
1588
1589 Note we iterate over the input sections examining their
1590 relocations since the relocations for the output sections
1591 haven't been set yet. mark_symbols_used_in_relocations will
1592 ignore input sections which have no corresponding output
1593 section. */
1594 if (strip_symbols != STRIP_ALL)
1595 bfd_map_over_sections (ibfd,
1596 mark_symbols_used_in_relocations,
1597 isympp);
1598 osympp = xmalloc ((symcount + 1) * sizeof (asymbol *));
1599 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1600 }
1601
1602 if (convert_debugging && dhandle != NULL)
1603 {
1604 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1605 {
1606 status = 1;
1607 return FALSE;
1608 }
1609 }
1610
1611 bfd_set_symtab (obfd, osympp, symcount);
1612
1613 /* This has to happen after the symbol table has been set. */
1614 bfd_map_over_sections (ibfd, copy_section, obfd);
1615
1616 if (add_sections != NULL)
1617 {
1618 struct section_add *padd;
1619
1620 for (padd = add_sections; padd != NULL; padd = padd->next)
1621 {
1622 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1623 0, padd->size))
1624 {
1625 bfd_nonfatal (bfd_get_filename (obfd));
1626 return FALSE;
1627 }
1628 }
1629 }
1630
1631 if (gnu_debuglink_filename != NULL)
1632 {
1633 if (! bfd_fill_in_gnu_debuglink_section
1634 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
1635 {
1636 bfd_nonfatal (gnu_debuglink_filename);
1637 return FALSE;
1638 }
1639 }
1640
1641 if (gap_fill_set || pad_to_set)
1642 {
1643 bfd_byte *buf;
1644 int c, i;
1645
1646 /* Fill in the gaps. */
1647 if (max_gap > 8192)
1648 max_gap = 8192;
1649 buf = xmalloc (max_gap);
1650 memset (buf, gap_fill, max_gap);
1651
1652 c = bfd_count_sections (obfd);
1653 for (i = 0; i < c; i++)
1654 {
1655 if (gaps[i] != 0)
1656 {
1657 bfd_size_type left;
1658 file_ptr off;
1659
1660 left = gaps[i];
1661 off = bfd_section_size (obfd, osections[i]) - left;
1662
1663 while (left > 0)
1664 {
1665 bfd_size_type now;
1666
1667 if (left > 8192)
1668 now = 8192;
1669 else
1670 now = left;
1671
1672 if (! bfd_set_section_contents (obfd, osections[i], buf,
1673 off, now))
1674 {
1675 bfd_nonfatal (bfd_get_filename (obfd));
1676 return FALSE;
1677 }
1678
1679 left -= now;
1680 off += now;
1681 }
1682 }
1683 }
1684 }
1685
1686 /* Allow the BFD backend to copy any private data it understands
1687 from the input BFD to the output BFD. This is done last to
1688 permit the routine to look at the filtered symbol table, which is
1689 important for the ECOFF code at least. */
1690 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
1691 && strip_symbols == STRIP_NONDEBUG)
1692 /* Do not copy the private data when creating an ELF format
1693 debug info file. We do not want the program headers. */
1694 ;
1695 else if (! bfd_copy_private_bfd_data (ibfd, obfd))
1696 {
1697 non_fatal (_("%s: error copying private BFD data: %s"),
1698 bfd_get_filename (obfd),
1699 bfd_errmsg (bfd_get_error ()));
1700 return FALSE;
1701 }
1702
1703 /* Switch to the alternate machine code. We have to do this at the
1704 very end, because we only initialize the header when we create
1705 the first section. */
1706 if (use_alt_mach_code != 0)
1707 {
1708 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
1709 {
1710 non_fatal (_("this target does not support %lu alternative machine codes"),
1711 use_alt_mach_code);
1712 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
1713 {
1714 non_fatal (_("treating that number as an absolute e_machine value instead"));
1715 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
1716 }
1717 else
1718 non_fatal (_("ignoring the alternative value"));
1719 }
1720 }
1721
1722 return TRUE;
1723 }
1724
1725 #undef MKDIR
1726 #if defined (_WIN32) && !defined (__CYGWIN32__)
1727 #define MKDIR(DIR, MODE) mkdir (DIR)
1728 #else
1729 #define MKDIR(DIR, MODE) mkdir (DIR, MODE)
1730 #endif
1731
1732 /* Read each archive element in turn from IBFD, copy the
1733 contents to temp file, and keep the temp file handle.
1734 If 'force_output_target' is TRUE then make sure that
1735 all elements in the new archive are of the type
1736 'output_target'. */
1737
1738 static void
1739 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
1740 bfd_boolean force_output_target)
1741 {
1742 struct name_list
1743 {
1744 struct name_list *next;
1745 const char *name;
1746 bfd *obfd;
1747 } *list, *l;
1748 bfd **ptr = &obfd->archive_head;
1749 bfd *this_element;
1750 char *dir = make_tempname (bfd_get_filename (obfd));
1751
1752 /* Make a temp directory to hold the contents. */
1753 if (MKDIR (dir, 0700) != 0)
1754 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1755 dir, strerror (errno));
1756
1757 obfd->has_armap = ibfd->has_armap;
1758
1759 list = NULL;
1760
1761 this_element = bfd_openr_next_archived_file (ibfd, NULL);
1762
1763 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1764 RETURN_NONFATAL (bfd_get_filename (obfd));
1765
1766 while (!status && this_element != NULL)
1767 {
1768 char *output_name;
1769 bfd *output_bfd;
1770 bfd *last_element;
1771 struct stat buf;
1772 int stat_status = 0;
1773 bfd_boolean delete = TRUE;
1774
1775 /* Create an output file for this member. */
1776 output_name = concat (dir, "/",
1777 bfd_get_filename (this_element), (char *) 0);
1778
1779 /* If the file already exists, make another temp dir. */
1780 if (stat (output_name, &buf) >= 0)
1781 {
1782 output_name = make_tempname (output_name);
1783 if (MKDIR (output_name, 0700) != 0)
1784 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1785 output_name, strerror (errno));
1786
1787 l = xmalloc (sizeof (struct name_list));
1788 l->name = output_name;
1789 l->next = list;
1790 l->obfd = NULL;
1791 list = l;
1792 output_name = concat (output_name, "/",
1793 bfd_get_filename (this_element), (char *) 0);
1794 }
1795
1796 if (preserve_dates)
1797 {
1798 stat_status = bfd_stat_arch_elt (this_element, &buf);
1799
1800 if (stat_status != 0)
1801 non_fatal (_("internal stat error on %s"),
1802 bfd_get_filename (this_element));
1803 }
1804
1805 l = xmalloc (sizeof (struct name_list));
1806 l->name = output_name;
1807 l->next = list;
1808 l->obfd = NULL;
1809 list = l;
1810
1811 if (bfd_check_format (this_element, bfd_object))
1812 {
1813 /* PR binutils/3110: Cope with archives
1814 containing multiple target types. */
1815 if (force_output_target)
1816 output_bfd = bfd_openw (output_name, output_target);
1817 else
1818 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
1819
1820 if (output_bfd == NULL)
1821 RETURN_NONFATAL (output_name);
1822
1823 delete = ! copy_object (this_element, output_bfd);
1824
1825 if (! delete
1826 || bfd_get_arch (this_element) != bfd_arch_unknown)
1827 {
1828 if (!bfd_close (output_bfd))
1829 {
1830 bfd_nonfatal (bfd_get_filename (output_bfd));
1831 /* Error in new object file. Don't change archive. */
1832 status = 1;
1833 }
1834 }
1835 else
1836 goto copy_unknown_element;
1837 }
1838 else
1839 {
1840 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1841 bfd_get_archive_filename (this_element));
1842
1843 output_bfd = bfd_openw (output_name, output_target);
1844 copy_unknown_element:
1845 delete = !copy_unknown_object (this_element, output_bfd);
1846 if (!bfd_close_all_done (output_bfd))
1847 {
1848 bfd_nonfatal (bfd_get_filename (output_bfd));
1849 /* Error in new object file. Don't change archive. */
1850 status = 1;
1851 }
1852 }
1853
1854 if (delete)
1855 {
1856 unlink (output_name);
1857 status = 1;
1858 }
1859 else
1860 {
1861 if (preserve_dates && stat_status == 0)
1862 set_times (output_name, &buf);
1863
1864 /* Open the newly output file and attach to our list. */
1865 output_bfd = bfd_openr (output_name, output_target);
1866
1867 l->obfd = output_bfd;
1868
1869 *ptr = output_bfd;
1870 ptr = &output_bfd->next;
1871
1872 last_element = this_element;
1873
1874 this_element = bfd_openr_next_archived_file (ibfd, last_element);
1875
1876 bfd_close (last_element);
1877 }
1878 }
1879 *ptr = NULL;
1880
1881 if (!bfd_close (obfd))
1882 RETURN_NONFATAL (bfd_get_filename (obfd));
1883
1884 if (!bfd_close (ibfd))
1885 RETURN_NONFATAL (bfd_get_filename (ibfd));
1886
1887 /* Delete all the files that we opened. */
1888 for (l = list; l != NULL; l = l->next)
1889 {
1890 if (l->obfd == NULL)
1891 rmdir (l->name);
1892 else
1893 {
1894 bfd_close (l->obfd);
1895 unlink (l->name);
1896 }
1897 }
1898 rmdir (dir);
1899 }
1900
1901 /* The top-level control. */
1902
1903 static void
1904 copy_file (const char *input_filename, const char *output_filename,
1905 const char *input_target, const char *output_target)
1906 {
1907 bfd *ibfd;
1908 char **obj_matching;
1909 char **core_matching;
1910
1911 if (get_file_size (input_filename) < 1)
1912 {
1913 status = 1;
1914 return;
1915 }
1916
1917 /* To allow us to do "strip *" without dying on the first
1918 non-object file, failures are nonfatal. */
1919 ibfd = bfd_openr (input_filename, input_target);
1920 if (ibfd == NULL)
1921 RETURN_NONFATAL (input_filename);
1922
1923 if (bfd_check_format (ibfd, bfd_archive))
1924 {
1925 bfd_boolean force_output_target;
1926 bfd *obfd;
1927
1928 /* bfd_get_target does not return the correct value until
1929 bfd_check_format succeeds. */
1930 if (output_target == NULL)
1931 {
1932 output_target = bfd_get_target (ibfd);
1933 force_output_target = FALSE;
1934 }
1935 else
1936 force_output_target = TRUE;
1937
1938 obfd = bfd_openw (output_filename, output_target);
1939 if (obfd == NULL)
1940 RETURN_NONFATAL (output_filename);
1941
1942 copy_archive (ibfd, obfd, output_target, force_output_target);
1943 }
1944 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
1945 {
1946 bfd *obfd;
1947 do_copy:
1948
1949 /* bfd_get_target does not return the correct value until
1950 bfd_check_format succeeds. */
1951 if (output_target == NULL)
1952 output_target = bfd_get_target (ibfd);
1953
1954 obfd = bfd_openw (output_filename, output_target);
1955 if (obfd == NULL)
1956 RETURN_NONFATAL (output_filename);
1957
1958 if (! copy_object (ibfd, obfd))
1959 status = 1;
1960
1961 if (!bfd_close (obfd))
1962 RETURN_NONFATAL (output_filename);
1963
1964 if (!bfd_close (ibfd))
1965 RETURN_NONFATAL (input_filename);
1966
1967 }
1968 else
1969 {
1970 bfd_error_type obj_error = bfd_get_error ();
1971 bfd_error_type core_error;
1972
1973 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
1974 {
1975 /* This probably can't happen.. */
1976 if (obj_error == bfd_error_file_ambiguously_recognized)
1977 free (obj_matching);
1978 goto do_copy;
1979 }
1980
1981 core_error = bfd_get_error ();
1982 /* Report the object error in preference to the core error. */
1983 if (obj_error != core_error)
1984 bfd_set_error (obj_error);
1985
1986 bfd_nonfatal (input_filename);
1987
1988 if (obj_error == bfd_error_file_ambiguously_recognized)
1989 {
1990 list_matching_formats (obj_matching);
1991 free (obj_matching);
1992 }
1993 if (core_error == bfd_error_file_ambiguously_recognized)
1994 {
1995 list_matching_formats (core_matching);
1996 free (core_matching);
1997 }
1998
1999 status = 1;
2000 }
2001 }
2002
2003 /* Add a name to the section renaming list. */
2004
2005 static void
2006 add_section_rename (const char * old_name, const char * new_name,
2007 flagword flags)
2008 {
2009 section_rename * rename;
2010
2011 /* Check for conflicts first. */
2012 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2013 if (strcmp (rename->old_name, old_name) == 0)
2014 {
2015 /* Silently ignore duplicate definitions. */
2016 if (strcmp (rename->new_name, new_name) == 0
2017 && rename->flags == flags)
2018 return;
2019
2020 fatal (_("Multiple renames of section %s"), old_name);
2021 }
2022
2023 rename = xmalloc (sizeof (* rename));
2024
2025 rename->old_name = old_name;
2026 rename->new_name = new_name;
2027 rename->flags = flags;
2028 rename->next = section_rename_list;
2029
2030 section_rename_list = rename;
2031 }
2032
2033 /* Check the section rename list for a new name of the input section
2034 ISECTION. Return the new name if one is found.
2035 Also set RETURNED_FLAGS to the flags to be used for this section. */
2036
2037 static const char *
2038 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2039 flagword * returned_flags)
2040 {
2041 const char * old_name = bfd_section_name (ibfd, isection);
2042 section_rename * rename;
2043
2044 /* Default to using the flags of the input section. */
2045 * returned_flags = bfd_get_section_flags (ibfd, isection);
2046
2047 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2048 if (strcmp (rename->old_name, old_name) == 0)
2049 {
2050 if (rename->flags != (flagword) -1)
2051 * returned_flags = rename->flags;
2052
2053 return rename->new_name;
2054 }
2055
2056 return old_name;
2057 }
2058
2059 /* Once each of the sections is copied, we may still need to do some
2060 finalization work for private section headers. Do that here. */
2061
2062 static void
2063 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2064 {
2065 const char *err;
2066
2067 /* Allow the BFD backend to copy any private data it understands
2068 from the input section to the output section. */
2069 if (! bfd_copy_private_header_data (ibfd, obfd))
2070 {
2071 err = _("private header data");
2072 goto loser;
2073 }
2074
2075 /* All went well. */
2076 return;
2077
2078 loser:
2079 non_fatal (_("%s: error in %s: %s"),
2080 bfd_get_filename (ibfd),
2081 err, bfd_errmsg (bfd_get_error ()));
2082 status = 1;
2083 }
2084
2085 /* Create a section in OBFD with the same
2086 name and attributes as ISECTION in IBFD. */
2087
2088 static void
2089 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2090 {
2091 bfd *obfd = obfdarg;
2092 struct section_list *p;
2093 sec_ptr osection;
2094 bfd_size_type size;
2095 bfd_vma vma;
2096 bfd_vma lma;
2097 flagword flags;
2098 const char *err;
2099 const char * name;
2100 char *prefix = NULL;
2101
2102 if (is_strip_section (ibfd, isection))
2103 return;
2104
2105 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
2106 if (p != NULL)
2107 p->used = TRUE;
2108
2109 /* Get the, possibly new, name of the output section. */
2110 name = find_section_rename (ibfd, isection, & flags);
2111
2112 /* Prefix sections. */
2113 if ((prefix_alloc_sections_string)
2114 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2115 prefix = prefix_alloc_sections_string;
2116 else if (prefix_sections_string)
2117 prefix = prefix_sections_string;
2118
2119 if (prefix)
2120 {
2121 char *n;
2122
2123 n = xmalloc (strlen (prefix) + strlen (name) + 1);
2124 strcpy (n, prefix);
2125 strcat (n, name);
2126 name = n;
2127 }
2128
2129 if (p != NULL && p->set_flags)
2130 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2131 else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0)
2132 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
2133
2134 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2135
2136 if (osection == NULL)
2137 {
2138 err = _("making");
2139 goto loser;
2140 }
2141
2142 if (strip_symbols == STRIP_NONDEBUG
2143 && obfd->xvec->flavour == bfd_target_elf_flavour
2144 && (flags & SEC_ALLOC) != 0
2145 && (p == NULL || !p->set_flags))
2146 elf_section_type (osection) = SHT_NOBITS;
2147
2148 size = bfd_section_size (ibfd, isection);
2149 if (copy_byte >= 0)
2150 size = (size + interleave - 1) / interleave;
2151 if (! bfd_set_section_size (obfd, osection, size))
2152 {
2153 err = _("size");
2154 goto loser;
2155 }
2156
2157 vma = bfd_section_vma (ibfd, isection);
2158 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2159 vma += p->vma_val;
2160 else if (p != NULL && p->change_vma == CHANGE_SET)
2161 vma = p->vma_val;
2162 else
2163 vma += change_section_address;
2164
2165 if (! bfd_set_section_vma (obfd, osection, vma))
2166 {
2167 err = _("vma");
2168 goto loser;
2169 }
2170
2171 lma = isection->lma;
2172 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2173 {
2174 if (p->change_lma == CHANGE_MODIFY)
2175 lma += p->lma_val;
2176 else if (p->change_lma == CHANGE_SET)
2177 lma = p->lma_val;
2178 else
2179 abort ();
2180 }
2181 else
2182 lma += change_section_address;
2183
2184 osection->lma = lma;
2185
2186 /* FIXME: This is probably not enough. If we change the LMA we
2187 may have to recompute the header for the file as well. */
2188 if (!bfd_set_section_alignment (obfd,
2189 osection,
2190 bfd_section_alignment (ibfd, isection)))
2191 {
2192 err = _("alignment");
2193 goto loser;
2194 }
2195
2196 /* Copy merge entity size. */
2197 osection->entsize = isection->entsize;
2198
2199 /* This used to be mangle_section; we do here to avoid using
2200 bfd_get_section_by_name since some formats allow multiple
2201 sections with the same name. */
2202 isection->output_section = osection;
2203 isection->output_offset = 0;
2204
2205 /* Allow the BFD backend to copy any private data it understands
2206 from the input section to the output section. */
2207 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
2208 && strip_symbols == STRIP_NONDEBUG)
2209 /* Do not copy the private data when creating an ELF format
2210 debug info file. We do not want the program headers. */
2211 ;
2212 else if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2213 {
2214 err = _("private data");
2215 goto loser;
2216 }
2217 else if ((isection->flags & SEC_GROUP) != 0
2218 && bfd_get_flavour (ibfd) == bfd_target_elf_flavour)
2219 {
2220 Elf_Internal_Shdr *ghdr;
2221
2222 ghdr = &elf_section_data (isection)->this_hdr;
2223 if (ghdr->sh_link < elf_numsections (ibfd))
2224 {
2225 const struct elf_backend_data *bed = get_elf_backend_data (ibfd);
2226 Elf_Internal_Shdr *symhdr = elf_elfsections (ibfd) [ghdr->sh_link];
2227
2228 if (symhdr->sh_type == SHT_SYMTAB
2229 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
2230 isympp[ghdr->sh_info]->flags |= BSF_KEEP;
2231 }
2232 }
2233
2234 /* All went well. */
2235 return;
2236
2237 loser:
2238 non_fatal (_("%s: section `%s': error in %s: %s"),
2239 bfd_get_filename (ibfd),
2240 bfd_section_name (ibfd, isection),
2241 err, bfd_errmsg (bfd_get_error ()));
2242 status = 1;
2243 }
2244
2245 /* Copy the data of input section ISECTION of IBFD
2246 to an output section with the same name in OBFD.
2247 If stripping then don't copy any relocation info. */
2248
2249 static void
2250 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2251 {
2252 bfd *obfd = obfdarg;
2253 struct section_list *p;
2254 arelent **relpp;
2255 long relcount;
2256 sec_ptr osection;
2257 bfd_size_type size;
2258 long relsize;
2259 flagword flags;
2260
2261 /* If we have already failed earlier on,
2262 do not keep on generating complaints now. */
2263 if (status != 0)
2264 return;
2265
2266 if (is_strip_section (ibfd, isection))
2267 return;
2268
2269 flags = bfd_get_section_flags (ibfd, isection);
2270 if ((flags & SEC_GROUP) != 0)
2271 return;
2272
2273 osection = isection->output_section;
2274 size = bfd_get_section_size (isection);
2275
2276 if (size == 0 || osection == 0)
2277 return;
2278
2279 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2280
2281 /* Core files do not need to be relocated. */
2282 if (bfd_get_format (obfd) == bfd_core)
2283 relsize = 0;
2284 else
2285 {
2286 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2287
2288 if (relsize < 0)
2289 {
2290 /* Do not complain if the target does not support relocations. */
2291 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2292 relsize = 0;
2293 else
2294 RETURN_NONFATAL (bfd_get_filename (ibfd));
2295 }
2296 }
2297
2298 if (relsize == 0)
2299 bfd_set_reloc (obfd, osection, NULL, 0);
2300 else
2301 {
2302 relpp = xmalloc (relsize);
2303 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2304 if (relcount < 0)
2305 RETURN_NONFATAL (bfd_get_filename (ibfd));
2306
2307 if (strip_symbols == STRIP_ALL)
2308 {
2309 /* Remove relocations which are not in
2310 keep_strip_specific_list. */
2311 arelent **temp_relpp;
2312 long temp_relcount = 0;
2313 long i;
2314
2315 temp_relpp = xmalloc (relsize);
2316 for (i = 0; i < relcount; i++)
2317 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2318 keep_specific_list))
2319 temp_relpp [temp_relcount++] = relpp [i];
2320 relcount = temp_relcount;
2321 free (relpp);
2322 relpp = temp_relpp;
2323 }
2324
2325 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2326 if (relcount == 0)
2327 free (relpp);
2328 }
2329
2330 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2331 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2332 {
2333 void *memhunk = xmalloc (size);
2334
2335 if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
2336 RETURN_NONFATAL (bfd_get_filename (ibfd));
2337
2338 if (copy_byte >= 0)
2339 {
2340 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2341 char *from = (char *) memhunk + copy_byte;
2342 char *to = memhunk;
2343 char *end = (char *) memhunk + size;
2344
2345 for (; from < end; from += interleave)
2346 *to++ = *from;
2347
2348 size = (size + interleave - 1 - copy_byte) / interleave;
2349 osection->lma /= interleave;
2350 }
2351
2352 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2353 RETURN_NONFATAL (bfd_get_filename (obfd));
2354
2355 free (memhunk);
2356 }
2357 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2358 {
2359 void *memhunk = xmalloc (size);
2360
2361 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2362 flag--they can just remove the section entirely and add it
2363 back again. However, we do permit them to turn on the
2364 SEC_HAS_CONTENTS flag, and take it to mean that the section
2365 contents should be zeroed out. */
2366
2367 memset (memhunk, 0, size);
2368 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2369 RETURN_NONFATAL (bfd_get_filename (obfd));
2370 free (memhunk);
2371 }
2372 }
2373
2374 /* Get all the sections. This is used when --gap-fill or --pad-to is
2375 used. */
2376
2377 static void
2378 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
2379 {
2380 asection ***secppp = secppparg;
2381
2382 **secppp = osection;
2383 ++(*secppp);
2384 }
2385
2386 /* Sort sections by VMA. This is called via qsort, and is used when
2387 --gap-fill or --pad-to is used. We force non loadable or empty
2388 sections to the front, where they are easier to ignore. */
2389
2390 static int
2391 compare_section_lma (const void *arg1, const void *arg2)
2392 {
2393 const asection *const *sec1 = arg1;
2394 const asection *const *sec2 = arg2;
2395 flagword flags1, flags2;
2396
2397 /* Sort non loadable sections to the front. */
2398 flags1 = (*sec1)->flags;
2399 flags2 = (*sec2)->flags;
2400 if ((flags1 & SEC_HAS_CONTENTS) == 0
2401 || (flags1 & SEC_LOAD) == 0)
2402 {
2403 if ((flags2 & SEC_HAS_CONTENTS) != 0
2404 && (flags2 & SEC_LOAD) != 0)
2405 return -1;
2406 }
2407 else
2408 {
2409 if ((flags2 & SEC_HAS_CONTENTS) == 0
2410 || (flags2 & SEC_LOAD) == 0)
2411 return 1;
2412 }
2413
2414 /* Sort sections by LMA. */
2415 if ((*sec1)->lma > (*sec2)->lma)
2416 return 1;
2417 else if ((*sec1)->lma < (*sec2)->lma)
2418 return -1;
2419
2420 /* Sort sections with the same LMA by size. */
2421 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
2422 return 1;
2423 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
2424 return -1;
2425
2426 return 0;
2427 }
2428
2429 /* Mark all the symbols which will be used in output relocations with
2430 the BSF_KEEP flag so that those symbols will not be stripped.
2431
2432 Ignore relocations which will not appear in the output file. */
2433
2434 static void
2435 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
2436 {
2437 asymbol **symbols = symbolsarg;
2438 long relsize;
2439 arelent **relpp;
2440 long relcount, i;
2441
2442 /* Ignore an input section with no corresponding output section. */
2443 if (isection->output_section == NULL)
2444 return;
2445
2446 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2447 if (relsize < 0)
2448 {
2449 /* Do not complain if the target does not support relocations. */
2450 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2451 return;
2452 bfd_fatal (bfd_get_filename (ibfd));
2453 }
2454
2455 if (relsize == 0)
2456 return;
2457
2458 relpp = xmalloc (relsize);
2459 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2460 if (relcount < 0)
2461 bfd_fatal (bfd_get_filename (ibfd));
2462
2463 /* Examine each symbol used in a relocation. If it's not one of the
2464 special bfd section symbols, then mark it with BSF_KEEP. */
2465 for (i = 0; i < relcount; i++)
2466 {
2467 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2468 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2469 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2470 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
2471 }
2472
2473 if (relpp != NULL)
2474 free (relpp);
2475 }
2476
2477 /* Write out debugging information. */
2478
2479 static bfd_boolean
2480 write_debugging_info (bfd *obfd, void *dhandle,
2481 long *symcountp ATTRIBUTE_UNUSED,
2482 asymbol ***symppp ATTRIBUTE_UNUSED)
2483 {
2484 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2485 return write_ieee_debugging_info (obfd, dhandle);
2486
2487 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2488 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2489 {
2490 bfd_byte *syms, *strings;
2491 bfd_size_type symsize, stringsize;
2492 asection *stabsec, *stabstrsec;
2493 flagword flags;
2494
2495 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2496 &symsize, &strings,
2497 &stringsize))
2498 return FALSE;
2499
2500 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2501 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2502 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
2503 if (stabsec == NULL
2504 || stabstrsec == NULL
2505 || ! bfd_set_section_size (obfd, stabsec, symsize)
2506 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2507 || ! bfd_set_section_alignment (obfd, stabsec, 2)
2508 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
2509 {
2510 non_fatal (_("%s: can't create debugging section: %s"),
2511 bfd_get_filename (obfd),
2512 bfd_errmsg (bfd_get_error ()));
2513 return FALSE;
2514 }
2515
2516 /* We can get away with setting the section contents now because
2517 the next thing the caller is going to do is copy over the
2518 real sections. We may someday have to split the contents
2519 setting out of this function. */
2520 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
2521 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
2522 stringsize))
2523 {
2524 non_fatal (_("%s: can't set debugging section contents: %s"),
2525 bfd_get_filename (obfd),
2526 bfd_errmsg (bfd_get_error ()));
2527 return FALSE;
2528 }
2529
2530 return TRUE;
2531 }
2532
2533 non_fatal (_("%s: don't know how to write debugging information for %s"),
2534 bfd_get_filename (obfd), bfd_get_target (obfd));
2535 return FALSE;
2536 }
2537
2538 static int
2539 strip_main (int argc, char *argv[])
2540 {
2541 char *input_target = NULL;
2542 char *output_target = NULL;
2543 bfd_boolean show_version = FALSE;
2544 bfd_boolean formats_info = FALSE;
2545 int c;
2546 int i;
2547 struct section_list *p;
2548 char *output_file = NULL;
2549
2550 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
2551 strip_options, (int *) 0)) != EOF)
2552 {
2553 switch (c)
2554 {
2555 case 'I':
2556 input_target = optarg;
2557 break;
2558 case 'O':
2559 output_target = optarg;
2560 break;
2561 case 'F':
2562 input_target = output_target = optarg;
2563 break;
2564 case 'R':
2565 p = find_section_list (optarg, TRUE);
2566 p->remove = TRUE;
2567 sections_removed = TRUE;
2568 break;
2569 case 's':
2570 strip_symbols = STRIP_ALL;
2571 break;
2572 case 'S':
2573 case 'g':
2574 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
2575 strip_symbols = STRIP_DEBUG;
2576 break;
2577 case OPTION_STRIP_UNNEEDED:
2578 strip_symbols = STRIP_UNNEEDED;
2579 break;
2580 case 'K':
2581 add_specific_symbol (optarg, &keep_specific_list);
2582 break;
2583 case 'N':
2584 add_specific_symbol (optarg, &strip_specific_list);
2585 break;
2586 case 'o':
2587 output_file = optarg;
2588 break;
2589 case 'p':
2590 preserve_dates = TRUE;
2591 break;
2592 case 'x':
2593 discard_locals = LOCALS_ALL;
2594 break;
2595 case 'X':
2596 discard_locals = LOCALS_START_L;
2597 break;
2598 case 'v':
2599 verbose = TRUE;
2600 break;
2601 case 'V':
2602 show_version = TRUE;
2603 break;
2604 case OPTION_FORMATS_INFO:
2605 formats_info = TRUE;
2606 break;
2607 case OPTION_ONLY_KEEP_DEBUG:
2608 strip_symbols = STRIP_NONDEBUG;
2609 break;
2610 case OPTION_KEEP_FILE_SYMBOLS:
2611 keep_file_symbols = 1;
2612 break;
2613 case 0:
2614 /* We've been given a long option. */
2615 break;
2616 case 'w':
2617 wildcard = TRUE;
2618 break;
2619 case 'H':
2620 case 'h':
2621 strip_usage (stdout, 0);
2622 default:
2623 strip_usage (stderr, 1);
2624 }
2625 }
2626
2627 if (formats_info)
2628 {
2629 display_info ();
2630 return 0;
2631 }
2632
2633 if (show_version)
2634 print_version ("strip");
2635
2636 /* Default is to strip all symbols. */
2637 if (strip_symbols == STRIP_UNDEF
2638 && discard_locals == LOCALS_UNDEF
2639 && strip_specific_list == NULL)
2640 strip_symbols = STRIP_ALL;
2641
2642 if (output_target == NULL)
2643 output_target = input_target;
2644
2645 i = optind;
2646 if (i == argc
2647 || (output_file != NULL && (i + 1) < argc))
2648 strip_usage (stderr, 1);
2649
2650 for (; i < argc; i++)
2651 {
2652 int hold_status = status;
2653 struct stat statbuf;
2654 char *tmpname;
2655
2656 if (get_file_size (argv[i]) < 1)
2657 {
2658 status = 1;
2659 continue;
2660 }
2661
2662 if (preserve_dates)
2663 /* No need to check the return value of stat().
2664 It has already been checked in get_file_size(). */
2665 stat (argv[i], &statbuf);
2666
2667 if (output_file != NULL)
2668 tmpname = output_file;
2669 else
2670 tmpname = make_tempname (argv[i]);
2671
2672 status = 0;
2673 copy_file (argv[i], tmpname, input_target, output_target);
2674 if (status == 0)
2675 {
2676 if (preserve_dates)
2677 set_times (tmpname, &statbuf);
2678 if (output_file == NULL)
2679 smart_rename (tmpname, argv[i], preserve_dates);
2680 status = hold_status;
2681 }
2682 else
2683 unlink_if_ordinary (tmpname);
2684 if (output_file == NULL)
2685 free (tmpname);
2686 }
2687
2688 return status;
2689 }
2690
2691 static int
2692 copy_main (int argc, char *argv[])
2693 {
2694 char * binary_architecture = NULL;
2695 char *input_filename = NULL;
2696 char *output_filename = NULL;
2697 char *input_target = NULL;
2698 char *output_target = NULL;
2699 bfd_boolean show_version = FALSE;
2700 bfd_boolean change_warn = TRUE;
2701 bfd_boolean formats_info = FALSE;
2702 int c;
2703 struct section_list *p;
2704 struct stat statbuf;
2705
2706 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
2707 copy_options, (int *) 0)) != EOF)
2708 {
2709 switch (c)
2710 {
2711 case 'b':
2712 copy_byte = atoi (optarg);
2713 if (copy_byte < 0)
2714 fatal (_("byte number must be non-negative"));
2715 break;
2716
2717 case 'B':
2718 binary_architecture = optarg;
2719 break;
2720
2721 case 'i':
2722 interleave = atoi (optarg);
2723 if (interleave < 1)
2724 fatal (_("interleave must be positive"));
2725 break;
2726
2727 case 'I':
2728 case 's': /* "source" - 'I' is preferred */
2729 input_target = optarg;
2730 break;
2731
2732 case 'O':
2733 case 'd': /* "destination" - 'O' is preferred */
2734 output_target = optarg;
2735 break;
2736
2737 case 'F':
2738 input_target = output_target = optarg;
2739 break;
2740
2741 case 'j':
2742 p = find_section_list (optarg, TRUE);
2743 if (p->remove)
2744 fatal (_("%s both copied and removed"), optarg);
2745 p->copy = TRUE;
2746 sections_copied = TRUE;
2747 break;
2748
2749 case 'R':
2750 p = find_section_list (optarg, TRUE);
2751 if (p->copy)
2752 fatal (_("%s both copied and removed"), optarg);
2753 p->remove = TRUE;
2754 sections_removed = TRUE;
2755 break;
2756
2757 case 'S':
2758 strip_symbols = STRIP_ALL;
2759 break;
2760
2761 case 'g':
2762 strip_symbols = STRIP_DEBUG;
2763 break;
2764
2765 case OPTION_STRIP_UNNEEDED:
2766 strip_symbols = STRIP_UNNEEDED;
2767 break;
2768
2769 case OPTION_ONLY_KEEP_DEBUG:
2770 strip_symbols = STRIP_NONDEBUG;
2771 break;
2772
2773 case OPTION_KEEP_FILE_SYMBOLS:
2774 keep_file_symbols = 1;
2775 break;
2776
2777 case OPTION_ADD_GNU_DEBUGLINK:
2778 gnu_debuglink_filename = optarg;
2779 break;
2780
2781 case 'K':
2782 add_specific_symbol (optarg, &keep_specific_list);
2783 break;
2784
2785 case 'N':
2786 add_specific_symbol (optarg, &strip_specific_list);
2787 break;
2788
2789 case OPTION_STRIP_UNNEEDED_SYMBOL:
2790 add_specific_symbol (optarg, &strip_unneeded_list);
2791 break;
2792
2793 case 'L':
2794 add_specific_symbol (optarg, &localize_specific_list);
2795 break;
2796
2797 case OPTION_GLOBALIZE_SYMBOL:
2798 add_specific_symbol (optarg, &globalize_specific_list);
2799 break;
2800
2801 case 'G':
2802 add_specific_symbol (optarg, &keepglobal_specific_list);
2803 break;
2804
2805 case 'W':
2806 add_specific_symbol (optarg, &weaken_specific_list);
2807 break;
2808
2809 case 'p':
2810 preserve_dates = TRUE;
2811 break;
2812
2813 case 'w':
2814 wildcard = TRUE;
2815 break;
2816
2817 case 'x':
2818 discard_locals = LOCALS_ALL;
2819 break;
2820
2821 case 'X':
2822 discard_locals = LOCALS_START_L;
2823 break;
2824
2825 case 'v':
2826 verbose = TRUE;
2827 break;
2828
2829 case 'V':
2830 show_version = TRUE;
2831 break;
2832
2833 case OPTION_FORMATS_INFO:
2834 formats_info = TRUE;
2835 break;
2836
2837 case OPTION_WEAKEN:
2838 weaken = TRUE;
2839 break;
2840
2841 case OPTION_ADD_SECTION:
2842 {
2843 const char *s;
2844 off_t size;
2845 struct section_add *pa;
2846 int len;
2847 char *name;
2848 FILE *f;
2849
2850 s = strchr (optarg, '=');
2851
2852 if (s == NULL)
2853 fatal (_("bad format for %s"), "--add-section");
2854
2855 size = get_file_size (s + 1);
2856 if (size < 1)
2857 {
2858 status = 1;
2859 break;
2860 }
2861
2862 pa = xmalloc (sizeof (struct section_add));
2863
2864 len = s - optarg;
2865 name = xmalloc (len + 1);
2866 strncpy (name, optarg, len);
2867 name[len] = '\0';
2868 pa->name = name;
2869
2870 pa->filename = s + 1;
2871 pa->size = size;
2872 pa->contents = xmalloc (size);
2873
2874 f = fopen (pa->filename, FOPEN_RB);
2875
2876 if (f == NULL)
2877 fatal (_("cannot open: %s: %s"),
2878 pa->filename, strerror (errno));
2879
2880 if (fread (pa->contents, 1, pa->size, f) == 0
2881 || ferror (f))
2882 fatal (_("%s: fread failed"), pa->filename);
2883
2884 fclose (f);
2885
2886 pa->next = add_sections;
2887 add_sections = pa;
2888 }
2889 break;
2890
2891 case OPTION_CHANGE_START:
2892 change_start = parse_vma (optarg, "--change-start");
2893 break;
2894
2895 case OPTION_CHANGE_SECTION_ADDRESS:
2896 case OPTION_CHANGE_SECTION_LMA:
2897 case OPTION_CHANGE_SECTION_VMA:
2898 {
2899 const char *s;
2900 int len;
2901 char *name;
2902 char *option = NULL;
2903 bfd_vma val;
2904 enum change_action what = CHANGE_IGNORE;
2905
2906 switch (c)
2907 {
2908 case OPTION_CHANGE_SECTION_ADDRESS:
2909 option = "--change-section-address";
2910 break;
2911 case OPTION_CHANGE_SECTION_LMA:
2912 option = "--change-section-lma";
2913 break;
2914 case OPTION_CHANGE_SECTION_VMA:
2915 option = "--change-section-vma";
2916 break;
2917 }
2918
2919 s = strchr (optarg, '=');
2920 if (s == NULL)
2921 {
2922 s = strchr (optarg, '+');
2923 if (s == NULL)
2924 {
2925 s = strchr (optarg, '-');
2926 if (s == NULL)
2927 fatal (_("bad format for %s"), option);
2928 }
2929 }
2930
2931 len = s - optarg;
2932 name = xmalloc (len + 1);
2933 strncpy (name, optarg, len);
2934 name[len] = '\0';
2935
2936 p = find_section_list (name, TRUE);
2937
2938 val = parse_vma (s + 1, option);
2939
2940 switch (*s)
2941 {
2942 case '=': what = CHANGE_SET; break;
2943 case '-': val = - val; /* Drop through. */
2944 case '+': what = CHANGE_MODIFY; break;
2945 }
2946
2947 switch (c)
2948 {
2949 case OPTION_CHANGE_SECTION_ADDRESS:
2950 p->change_vma = what;
2951 p->vma_val = val;
2952 /* Drop through. */
2953
2954 case OPTION_CHANGE_SECTION_LMA:
2955 p->change_lma = what;
2956 p->lma_val = val;
2957 break;
2958
2959 case OPTION_CHANGE_SECTION_VMA:
2960 p->change_vma = what;
2961 p->vma_val = val;
2962 break;
2963 }
2964 }
2965 break;
2966
2967 case OPTION_CHANGE_ADDRESSES:
2968 change_section_address = parse_vma (optarg, "--change-addresses");
2969 change_start = change_section_address;
2970 break;
2971
2972 case OPTION_CHANGE_WARNINGS:
2973 change_warn = TRUE;
2974 break;
2975
2976 case OPTION_CHANGE_LEADING_CHAR:
2977 change_leading_char = TRUE;
2978 break;
2979
2980 case OPTION_DEBUGGING:
2981 convert_debugging = TRUE;
2982 break;
2983
2984 case OPTION_GAP_FILL:
2985 {
2986 bfd_vma gap_fill_vma;
2987
2988 gap_fill_vma = parse_vma (optarg, "--gap-fill");
2989 gap_fill = (bfd_byte) gap_fill_vma;
2990 if ((bfd_vma) gap_fill != gap_fill_vma)
2991 {
2992 char buff[20];
2993
2994 sprintf_vma (buff, gap_fill_vma);
2995
2996 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
2997 buff, gap_fill);
2998 }
2999 gap_fill_set = TRUE;
3000 }
3001 break;
3002
3003 case OPTION_NO_CHANGE_WARNINGS:
3004 change_warn = FALSE;
3005 break;
3006
3007 case OPTION_PAD_TO:
3008 pad_to = parse_vma (optarg, "--pad-to");
3009 pad_to_set = TRUE;
3010 break;
3011
3012 case OPTION_REMOVE_LEADING_CHAR:
3013 remove_leading_char = TRUE;
3014 break;
3015
3016 case OPTION_REDEFINE_SYM:
3017 {
3018 /* Push this redefinition onto redefine_symbol_list. */
3019
3020 int len;
3021 const char *s;
3022 const char *nextarg;
3023 char *source, *target;
3024
3025 s = strchr (optarg, '=');
3026 if (s == NULL)
3027 fatal (_("bad format for %s"), "--redefine-sym");
3028
3029 len = s - optarg;
3030 source = xmalloc (len + 1);
3031 strncpy (source, optarg, len);
3032 source[len] = '\0';
3033
3034 nextarg = s + 1;
3035 len = strlen (nextarg);
3036 target = xmalloc (len + 1);
3037 strcpy (target, nextarg);
3038
3039 redefine_list_append ("--redefine-sym", source, target);
3040
3041 free (source);
3042 free (target);
3043 }
3044 break;
3045
3046 case OPTION_REDEFINE_SYMS:
3047 add_redefine_syms_file (optarg);
3048 break;
3049
3050 case OPTION_SET_SECTION_FLAGS:
3051 {
3052 const char *s;
3053 int len;
3054 char *name;
3055
3056 s = strchr (optarg, '=');
3057 if (s == NULL)
3058 fatal (_("bad format for %s"), "--set-section-flags");
3059
3060 len = s - optarg;
3061 name = xmalloc (len + 1);
3062 strncpy (name, optarg, len);
3063 name[len] = '\0';
3064
3065 p = find_section_list (name, TRUE);
3066
3067 p->set_flags = TRUE;
3068 p->flags = parse_flags (s + 1);
3069 }
3070 break;
3071
3072 case OPTION_RENAME_SECTION:
3073 {
3074 flagword flags;
3075 const char *eq, *fl;
3076 char *old_name;
3077 char *new_name;
3078 unsigned int len;
3079
3080 eq = strchr (optarg, '=');
3081 if (eq == NULL)
3082 fatal (_("bad format for %s"), "--rename-section");
3083
3084 len = eq - optarg;
3085 if (len == 0)
3086 fatal (_("bad format for %s"), "--rename-section");
3087
3088 old_name = xmalloc (len + 1);
3089 strncpy (old_name, optarg, len);
3090 old_name[len] = 0;
3091
3092 eq++;
3093 fl = strchr (eq, ',');
3094 if (fl)
3095 {
3096 flags = parse_flags (fl + 1);
3097 len = fl - eq;
3098 }
3099 else
3100 {
3101 flags = -1;
3102 len = strlen (eq);
3103 }
3104
3105 if (len == 0)
3106 fatal (_("bad format for %s"), "--rename-section");
3107
3108 new_name = xmalloc (len + 1);
3109 strncpy (new_name, eq, len);
3110 new_name[len] = 0;
3111
3112 add_section_rename (old_name, new_name, flags);
3113 }
3114 break;
3115
3116 case OPTION_SET_START:
3117 set_start = parse_vma (optarg, "--set-start");
3118 set_start_set = TRUE;
3119 break;
3120
3121 case OPTION_SREC_LEN:
3122 Chunk = parse_vma (optarg, "--srec-len");
3123 break;
3124
3125 case OPTION_SREC_FORCES3:
3126 S3Forced = TRUE;
3127 break;
3128
3129 case OPTION_STRIP_SYMBOLS:
3130 add_specific_symbols (optarg, &strip_specific_list);
3131 break;
3132
3133 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3134 add_specific_symbols (optarg, &strip_unneeded_list);
3135 break;
3136
3137 case OPTION_KEEP_SYMBOLS:
3138 add_specific_symbols (optarg, &keep_specific_list);
3139 break;
3140
3141 case OPTION_LOCALIZE_HIDDEN:
3142 localize_hidden = TRUE;
3143 break;
3144
3145 case OPTION_LOCALIZE_SYMBOLS:
3146 add_specific_symbols (optarg, &localize_specific_list);
3147 break;
3148
3149 case OPTION_GLOBALIZE_SYMBOLS:
3150 add_specific_symbols (optarg, &globalize_specific_list);
3151 break;
3152
3153 case OPTION_KEEPGLOBAL_SYMBOLS:
3154 add_specific_symbols (optarg, &keepglobal_specific_list);
3155 break;
3156
3157 case OPTION_WEAKEN_SYMBOLS:
3158 add_specific_symbols (optarg, &weaken_specific_list);
3159 break;
3160
3161 case OPTION_ALT_MACH_CODE:
3162 use_alt_mach_code = strtoul (optarg, NULL, 0);
3163 if (use_alt_mach_code == 0)
3164 fatal (_("unable to parse alternative machine code"));
3165 break;
3166
3167 case OPTION_PREFIX_SYMBOLS:
3168 prefix_symbols_string = optarg;
3169 break;
3170
3171 case OPTION_PREFIX_SECTIONS:
3172 prefix_sections_string = optarg;
3173 break;
3174
3175 case OPTION_PREFIX_ALLOC_SECTIONS:
3176 prefix_alloc_sections_string = optarg;
3177 break;
3178
3179 case OPTION_READONLY_TEXT:
3180 bfd_flags_to_set |= WP_TEXT;
3181 bfd_flags_to_clear &= ~WP_TEXT;
3182 break;
3183
3184 case OPTION_WRITABLE_TEXT:
3185 bfd_flags_to_clear |= WP_TEXT;
3186 bfd_flags_to_set &= ~WP_TEXT;
3187 break;
3188
3189 case OPTION_PURE:
3190 bfd_flags_to_set |= D_PAGED;
3191 bfd_flags_to_clear &= ~D_PAGED;
3192 break;
3193
3194 case OPTION_IMPURE:
3195 bfd_flags_to_clear |= D_PAGED;
3196 bfd_flags_to_set &= ~D_PAGED;
3197 break;
3198
3199 case 0:
3200 /* We've been given a long option. */
3201 break;
3202
3203 case 'H':
3204 case 'h':
3205 copy_usage (stdout, 0);
3206
3207 default:
3208 copy_usage (stderr, 1);
3209 }
3210 }
3211
3212 if (formats_info)
3213 {
3214 display_info ();
3215 return 0;
3216 }
3217
3218 if (show_version)
3219 print_version ("objcopy");
3220
3221 if (copy_byte >= interleave)
3222 fatal (_("byte number must be less than interleave"));
3223
3224 if (optind == argc || optind + 2 < argc)
3225 copy_usage (stderr, 1);
3226
3227 input_filename = argv[optind];
3228 if (optind + 1 < argc)
3229 output_filename = argv[optind + 1];
3230
3231 /* Default is to strip no symbols. */
3232 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3233 strip_symbols = STRIP_NONE;
3234
3235 if (output_target == NULL)
3236 output_target = input_target;
3237
3238 if (binary_architecture != NULL)
3239 {
3240 if (input_target && strcmp (input_target, "binary") == 0)
3241 {
3242 const bfd_arch_info_type * temp_arch_info;
3243
3244 temp_arch_info = bfd_scan_arch (binary_architecture);
3245
3246 if (temp_arch_info != NULL)
3247 {
3248 bfd_external_binary_architecture = temp_arch_info->arch;
3249 bfd_external_machine = temp_arch_info->mach;
3250 }
3251 else
3252 fatal (_("architecture %s unknown"), binary_architecture);
3253 }
3254 else
3255 {
3256 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
3257 non_fatal (_(" Argument %s ignored"), binary_architecture);
3258 }
3259 }
3260
3261 if (preserve_dates)
3262 if (stat (input_filename, & statbuf) < 0)
3263 fatal (_("warning: could not locate '%s'. System error message: %s"),
3264 input_filename, strerror (errno));
3265
3266 /* If there is no destination file, or the source and destination files
3267 are the same, then create a temp and rename the result into the input. */
3268 if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
3269 {
3270 char *tmpname = make_tempname (input_filename);
3271
3272 copy_file (input_filename, tmpname, input_target, output_target);
3273 if (status == 0)
3274 {
3275 if (preserve_dates)
3276 set_times (tmpname, &statbuf);
3277 smart_rename (tmpname, input_filename, preserve_dates);
3278 }
3279 else
3280 unlink (tmpname);
3281 }
3282 else
3283 {
3284 copy_file (input_filename, output_filename, input_target, output_target);
3285
3286 if (status == 0 && preserve_dates)
3287 set_times (output_filename, &statbuf);
3288 else if (status != 0)
3289 unlink_if_ordinary (output_filename);
3290 }
3291
3292 if (change_warn)
3293 {
3294 for (p = change_sections; p != NULL; p = p->next)
3295 {
3296 if (! p->used)
3297 {
3298 if (p->change_vma != CHANGE_IGNORE)
3299 {
3300 char buff [20];
3301
3302 sprintf_vma (buff, p->vma_val);
3303
3304 /* xgettext:c-format */
3305 non_fatal (_("%s %s%c0x%s never used"),
3306 "--change-section-vma",
3307 p->name,
3308 p->change_vma == CHANGE_SET ? '=' : '+',
3309 buff);
3310 }
3311
3312 if (p->change_lma != CHANGE_IGNORE)
3313 {
3314 char buff [20];
3315
3316 sprintf_vma (buff, p->lma_val);
3317
3318 /* xgettext:c-format */
3319 non_fatal (_("%s %s%c0x%s never used"),
3320 "--change-section-lma",
3321 p->name,
3322 p->change_lma == CHANGE_SET ? '=' : '+',
3323 buff);
3324 }
3325 }
3326 }
3327 }
3328
3329 return 0;
3330 }
3331
3332 int
3333 main (int argc, char *argv[])
3334 {
3335 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3336 setlocale (LC_MESSAGES, "");
3337 #endif
3338 #if defined (HAVE_SETLOCALE)
3339 setlocale (LC_CTYPE, "");
3340 #endif
3341 bindtextdomain (PACKAGE, LOCALEDIR);
3342 textdomain (PACKAGE);
3343
3344 program_name = argv[0];
3345 xmalloc_set_program_name (program_name);
3346
3347 START_PROGRESS (program_name, 0);
3348
3349 expandargv (&argc, &argv);
3350
3351 strip_symbols = STRIP_UNDEF;
3352 discard_locals = LOCALS_UNDEF;
3353
3354 bfd_init ();
3355 set_default_bfd_target ();
3356
3357 if (is_strip < 0)
3358 {
3359 int i = strlen (program_name);
3360 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3361 /* Drop the .exe suffix, if any. */
3362 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
3363 {
3364 i -= 4;
3365 program_name[i] = '\0';
3366 }
3367 #endif
3368 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
3369 }
3370
3371 if (is_strip)
3372 strip_main (argc, argv);
3373 else
3374 copy_main (argc, argv);
3375
3376 END_PROGRESS (program_name);
3377
3378 return status;
3379 }
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