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