2e2ccef6e5ddaef0c165f22c9a4cebb3a12c590a
[deliverable/binutils-gdb.git] / binutils / objcopy.c
1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006
4 Free Software Foundation, Inc.
5
6 This file is part of GNU Binutils.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
21 02110-1301, USA. */
22 \f
23 #include "bfd.h"
24 #include "progress.h"
25 #include "bucomm.h"
26 #include "getopt.h"
27 #include "libiberty.h"
28 #include "budbg.h"
29 #include "filenames.h"
30 #include "fnmatch.h"
31 #include "elf-bfd.h"
32 #include <sys/stat.h>
33 #include "libbfd.h"
34
35 /* A list of symbols to explicitly strip out, or to keep. A linked
36 list is good enough for a small number from the command line, but
37 this will slow things down a lot if many symbols are being
38 deleted. */
39
40 struct symlist
41 {
42 const char *name;
43 struct symlist *next;
44 };
45
46 /* A list to support redefine_sym. */
47 struct redefine_node
48 {
49 char *source;
50 char *target;
51 struct redefine_node *next;
52 };
53
54 typedef struct section_rename
55 {
56 const char * old_name;
57 const char * new_name;
58 flagword flags;
59 struct section_rename * next;
60 }
61 section_rename;
62
63 /* List of sections to be renamed. */
64 static section_rename *section_rename_list;
65
66 #define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;}
67
68 static asymbol **isympp = NULL; /* Input symbols. */
69 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
70
71 /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */
72 static int copy_byte = -1;
73 static int interleave = 4;
74
75 static bfd_boolean verbose; /* Print file and target names. */
76 static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
77 static int status = 0; /* Exit status. */
78
79 enum strip_action
80 {
81 STRIP_UNDEF,
82 STRIP_NONE, /* Don't strip. */
83 STRIP_DEBUG, /* Strip all debugger symbols. */
84 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
85 STRIP_NONDEBUG, /* Strip everything but debug info. */
86 STRIP_ALL /* Strip all symbols. */
87 };
88
89 /* Which symbols to remove. */
90 static enum strip_action strip_symbols;
91
92 enum locals_action
93 {
94 LOCALS_UNDEF,
95 LOCALS_START_L, /* Discard locals starting with L. */
96 LOCALS_ALL /* Discard all locals. */
97 };
98
99 /* Which local symbols to remove. Overrides STRIP_ALL. */
100 static enum locals_action discard_locals;
101
102 /* What kind of change to perform. */
103 enum change_action
104 {
105 CHANGE_IGNORE,
106 CHANGE_MODIFY,
107 CHANGE_SET
108 };
109
110 /* Structure used to hold lists of sections and actions to take. */
111 struct section_list
112 {
113 struct section_list * next; /* Next section to change. */
114 const char * name; /* Section name. */
115 bfd_boolean used; /* Whether this entry was used. */
116 bfd_boolean remove; /* Whether to remove this section. */
117 bfd_boolean copy; /* Whether to copy this section. */
118 enum change_action change_vma;/* Whether to change or set VMA. */
119 bfd_vma vma_val; /* Amount to change by or set to. */
120 enum change_action change_lma;/* Whether to change or set LMA. */
121 bfd_vma lma_val; /* Amount to change by or set to. */
122 bfd_boolean set_flags; /* Whether to set the section flags. */
123 flagword flags; /* What to set the section flags to. */
124 };
125
126 static struct section_list *change_sections;
127
128 /* TRUE if some sections are to be removed. */
129 static bfd_boolean sections_removed;
130
131 /* TRUE if only some sections are to be copied. */
132 static bfd_boolean sections_copied;
133
134 /* Changes to the start address. */
135 static bfd_vma change_start = 0;
136 static bfd_boolean set_start_set = FALSE;
137 static bfd_vma set_start;
138
139 /* Changes to section addresses. */
140 static bfd_vma change_section_address = 0;
141
142 /* Filling gaps between sections. */
143 static bfd_boolean gap_fill_set = FALSE;
144 static bfd_byte gap_fill = 0;
145
146 /* Pad to a given address. */
147 static bfd_boolean pad_to_set = FALSE;
148 static bfd_vma pad_to;
149
150 /* Use alternative machine code? */
151 static unsigned long use_alt_mach_code = 0;
152
153 /* Output BFD flags user wants to set or clear */
154 static flagword bfd_flags_to_set;
155 static flagword bfd_flags_to_clear;
156
157 /* List of sections to add. */
158 struct section_add
159 {
160 /* Next section to add. */
161 struct section_add *next;
162 /* Name of section to add. */
163 const char *name;
164 /* Name of file holding section contents. */
165 const char *filename;
166 /* Size of file. */
167 size_t size;
168 /* Contents of file. */
169 bfd_byte *contents;
170 /* BFD section, after it has been added. */
171 asection *section;
172 };
173
174 /* List of sections to add to the output BFD. */
175 static struct section_add *add_sections;
176
177 /* If non-NULL the argument to --add-gnu-debuglink.
178 This should be the filename to store in the .gnu_debuglink section. */
179 static const char * gnu_debuglink_filename = NULL;
180
181 /* Whether to convert debugging information. */
182 static bfd_boolean convert_debugging = FALSE;
183
184 /* Whether to change the leading character in symbol names. */
185 static bfd_boolean change_leading_char = FALSE;
186
187 /* Whether to remove the leading character from global symbol names. */
188 static bfd_boolean remove_leading_char = FALSE;
189
190 /* Whether to permit wildcard in symbol comparison. */
191 static bfd_boolean wildcard = FALSE;
192
193 /* True if --localize-hidden is in effect. */
194 static bfd_boolean localize_hidden = FALSE;
195
196 /* List of symbols to strip, keep, localize, keep-global, weaken,
197 or redefine. */
198 static struct symlist *strip_specific_list = NULL;
199 static struct symlist *strip_unneeded_list = NULL;
200 static struct symlist *keep_specific_list = NULL;
201 static struct symlist *localize_specific_list = NULL;
202 static struct symlist *globalize_specific_list = NULL;
203 static struct symlist *keepglobal_specific_list = NULL;
204 static struct symlist *weaken_specific_list = NULL;
205 static struct redefine_node *redefine_sym_list = NULL;
206
207 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
208 static bfd_boolean weaken = FALSE;
209
210 /* If this is TRUE, we retain BSF_FILE symbols. */
211 static bfd_boolean keep_file_symbols = FALSE;
212
213 /* Prefix symbols/sections. */
214 static char *prefix_symbols_string = 0;
215 static char *prefix_sections_string = 0;
216 static char *prefix_alloc_sections_string = 0;
217
218 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
219 enum command_line_switch
220 {
221 OPTION_ADD_SECTION=150,
222 OPTION_CHANGE_ADDRESSES,
223 OPTION_CHANGE_LEADING_CHAR,
224 OPTION_CHANGE_START,
225 OPTION_CHANGE_SECTION_ADDRESS,
226 OPTION_CHANGE_SECTION_LMA,
227 OPTION_CHANGE_SECTION_VMA,
228 OPTION_CHANGE_WARNINGS,
229 OPTION_DEBUGGING,
230 OPTION_GAP_FILL,
231 OPTION_NO_CHANGE_WARNINGS,
232 OPTION_PAD_TO,
233 OPTION_REMOVE_LEADING_CHAR,
234 OPTION_SET_SECTION_FLAGS,
235 OPTION_SET_START,
236 OPTION_STRIP_UNNEEDED,
237 OPTION_WEAKEN,
238 OPTION_REDEFINE_SYM,
239 OPTION_REDEFINE_SYMS,
240 OPTION_SREC_LEN,
241 OPTION_SREC_FORCES3,
242 OPTION_STRIP_SYMBOLS,
243 OPTION_STRIP_UNNEEDED_SYMBOL,
244 OPTION_STRIP_UNNEEDED_SYMBOLS,
245 OPTION_KEEP_SYMBOLS,
246 OPTION_LOCALIZE_HIDDEN,
247 OPTION_LOCALIZE_SYMBOLS,
248 OPTION_GLOBALIZE_SYMBOL,
249 OPTION_GLOBALIZE_SYMBOLS,
250 OPTION_KEEPGLOBAL_SYMBOLS,
251 OPTION_WEAKEN_SYMBOLS,
252 OPTION_RENAME_SECTION,
253 OPTION_ALT_MACH_CODE,
254 OPTION_PREFIX_SYMBOLS,
255 OPTION_PREFIX_SECTIONS,
256 OPTION_PREFIX_ALLOC_SECTIONS,
257 OPTION_FORMATS_INFO,
258 OPTION_ADD_GNU_DEBUGLINK,
259 OPTION_ONLY_KEEP_DEBUG,
260 OPTION_KEEP_FILE_SYMBOLS,
261 OPTION_READONLY_TEXT,
262 OPTION_WRITABLE_TEXT,
263 OPTION_PURE,
264 OPTION_IMPURE
265 };
266
267 /* Options to handle if running as "strip". */
268
269 static struct option strip_options[] =
270 {
271 {"discard-all", no_argument, 0, 'x'},
272 {"discard-locals", no_argument, 0, 'X'},
273 {"format", required_argument, 0, 'F'}, /* Obsolete */
274 {"help", no_argument, 0, 'h'},
275 {"info", no_argument, 0, OPTION_FORMATS_INFO},
276 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
277 {"input-target", required_argument, 0, 'I'},
278 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
279 {"keep-symbol", required_argument, 0, 'K'},
280 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
281 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
282 {"output-target", required_argument, 0, 'O'},
283 {"output-file", required_argument, 0, 'o'},
284 {"preserve-dates", no_argument, 0, 'p'},
285 {"remove-section", required_argument, 0, 'R'},
286 {"strip-all", no_argument, 0, 's'},
287 {"strip-debug", no_argument, 0, 'S'},
288 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
289 {"strip-symbol", required_argument, 0, 'N'},
290 {"target", required_argument, 0, 'F'},
291 {"verbose", no_argument, 0, 'v'},
292 {"version", no_argument, 0, 'V'},
293 {"wildcard", no_argument, 0, 'w'},
294 {0, no_argument, 0, 0}
295 };
296
297 /* Options to handle if running as "objcopy". */
298
299 static struct option copy_options[] =
300 {
301 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
302 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
303 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
304 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
305 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
306 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
307 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
308 {"binary-architecture", required_argument, 0, 'B'},
309 {"byte", required_argument, 0, 'b'},
310 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
311 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
312 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
313 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
314 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
315 {"change-start", required_argument, 0, OPTION_CHANGE_START},
316 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
317 {"debugging", no_argument, 0, OPTION_DEBUGGING},
318 {"discard-all", no_argument, 0, 'x'},
319 {"discard-locals", no_argument, 0, 'X'},
320 {"format", required_argument, 0, 'F'}, /* Obsolete */
321 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
322 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
323 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
324 {"help", no_argument, 0, 'h'},
325 {"impure", no_argument, 0, OPTION_IMPURE},
326 {"info", no_argument, 0, OPTION_FORMATS_INFO},
327 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
328 {"input-target", required_argument, 0, 'I'},
329 {"interleave", required_argument, 0, 'i'},
330 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
331 {"keep-global-symbol", required_argument, 0, 'G'},
332 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
333 {"keep-symbol", required_argument, 0, 'K'},
334 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
335 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
336 {"localize-symbol", required_argument, 0, 'L'},
337 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
338 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
339 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
340 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
341 {"only-section", required_argument, 0, 'j'},
342 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
343 {"output-target", required_argument, 0, 'O'},
344 {"pad-to", required_argument, 0, OPTION_PAD_TO},
345 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
346 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
347 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
348 {"preserve-dates", no_argument, 0, 'p'},
349 {"pure", no_argument, 0, OPTION_PURE},
350 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
351 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
352 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
353 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
354 {"remove-section", required_argument, 0, 'R'},
355 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
356 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
357 {"set-start", required_argument, 0, OPTION_SET_START},
358 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
359 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
360 {"strip-all", no_argument, 0, 'S'},
361 {"strip-debug", no_argument, 0, 'g'},
362 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
363 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
364 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
365 {"strip-symbol", required_argument, 0, 'N'},
366 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
367 {"target", required_argument, 0, 'F'},
368 {"verbose", no_argument, 0, 'v'},
369 {"version", no_argument, 0, 'V'},
370 {"weaken", no_argument, 0, OPTION_WEAKEN},
371 {"weaken-symbol", required_argument, 0, 'W'},
372 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
373 {"wildcard", no_argument, 0, 'w'},
374 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
375 {0, no_argument, 0, 0}
376 };
377
378 /* IMPORTS */
379 extern char *program_name;
380
381 /* This flag distinguishes between strip and objcopy:
382 1 means this is 'strip'; 0 means this is 'objcopy'.
383 -1 means if we should use argv[0] to decide. */
384 extern int is_strip;
385
386 /* The maximum length of an S record. This variable is declared in srec.c
387 and can be modified by the --srec-len parameter. */
388 extern unsigned int Chunk;
389
390 /* Restrict the generation of Srecords to type S3 only.
391 This variable is declare in bfd/srec.c and can be toggled
392 on by the --srec-forceS3 command line switch. */
393 extern bfd_boolean S3Forced;
394
395 /* Defined in bfd/binary.c. Used to set architecture and machine of input
396 binary files. */
397 extern enum bfd_architecture bfd_external_binary_architecture;
398 extern unsigned long bfd_external_machine;
399
400 /* Forward declarations. */
401 static void setup_section (bfd *, asection *, void *);
402 static void setup_bfd_headers (bfd *, bfd *);
403 static void copy_section (bfd *, asection *, void *);
404 static void get_sections (bfd *, asection *, void *);
405 static int compare_section_lma (const void *, const void *);
406 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
407 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
408 static const char *lookup_sym_redefinition (const char *);
409 \f
410 static void
411 copy_usage (FILE *stream, int exit_status)
412 {
413 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
414 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
415 fprintf (stream, _(" The options are:\n"));
416 fprintf (stream, _("\
417 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
418 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
419 -B --binary-architecture <arch> Set arch of output file, when input is binary\n\
420 -F --target <bfdname> Set both input and output format to <bfdname>\n\
421 --debugging Convert debugging information, if possible\n\
422 -p --preserve-dates Copy modified/access timestamps to the output\n\
423 -j --only-section <name> Only copy section <name> into the output\n\
424 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
425 -R --remove-section <name> Remove section <name> from the output\n\
426 -S --strip-all Remove all symbol and relocation information\n\
427 -g --strip-debug Remove all debugging symbols & sections\n\
428 --strip-unneeded Remove all symbols not needed by relocations\n\
429 -N --strip-symbol <name> Do not copy symbol <name>\n\
430 --strip-unneeded-symbol <name>\n\
431 Do not copy symbol <name> unless needed by\n\
432 relocations\n\
433 --only-keep-debug Strip everything but the debug information\n\
434 -K --keep-symbol <name> Do not strip symbol <name>\n\
435 --keep-file-symbols Do not strip file symbol(s)\n\
436 --localize-hidden Turn all ELF hidden symbols into locals\n\
437 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
438 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
439 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
440 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
441 --weaken Force all global symbols to be marked as weak\n\
442 -w --wildcard Permit wildcard in symbol comparison\n\
443 -x --discard-all Remove all non-global symbols\n\
444 -X --discard-locals Remove any compiler-generated symbols\n\
445 -i --interleave <number> Only copy one out of every <number> bytes\n\
446 -b --byte <num> Select byte <num> in every interleaved block\n\
447 --gap-fill <val> Fill gaps between sections with <val>\n\
448 --pad-to <addr> Pad the last section up to address <addr>\n\
449 --set-start <addr> Set the start address to <addr>\n\
450 {--change-start|--adjust-start} <incr>\n\
451 Add <incr> to the start address\n\
452 {--change-addresses|--adjust-vma} <incr>\n\
453 Add <incr> to LMA, VMA and start addresses\n\
454 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
455 Change LMA and VMA of section <name> by <val>\n\
456 --change-section-lma <name>{=|+|-}<val>\n\
457 Change the LMA of section <name> by <val>\n\
458 --change-section-vma <name>{=|+|-}<val>\n\
459 Change the VMA of section <name> by <val>\n\
460 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
461 Warn if a named section does not exist\n\
462 --set-section-flags <name>=<flags>\n\
463 Set section <name>'s properties to <flags>\n\
464 --add-section <name>=<file> Add section <name> found in <file> to output\n\
465 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
466 --change-leading-char Force output format's leading character style\n\
467 --remove-leading-char Remove leading character from global symbols\n\
468 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
469 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
470 listed in <file>\n\
471 --srec-len <number> Restrict the length of generated Srecords\n\
472 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
473 --strip-symbols <file> -N for all symbols listed in <file>\n\
474 --strip-unneeded-symbols <file>\n\
475 --strip-unneeded-symbol for all symbols listed\n\
476 in <file>\n\
477 --keep-symbols <file> -K for all symbols listed in <file>\n\
478 --localize-symbols <file> -L for all symbols listed in <file>\n\
479 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
480 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
481 --weaken-symbols <file> -W for all symbols listed in <file>\n\
482 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
483 --writable-text Mark the output text as writable\n\
484 --readonly-text Make the output text write protected\n\
485 --pure Mark the output file as demand paged\n\
486 --impure Mark the output file as impure\n\
487 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
488 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
489 --prefix-alloc-sections <prefix>\n\
490 Add <prefix> to start of every allocatable\n\
491 section name\n\
492 -v --verbose List all object files modified\n\
493 @<file> Read options from <file>\n\
494 -V --version Display this program's version number\n\
495 -h --help Display this output\n\
496 --info List object formats & architectures supported\n\
497 "));
498 list_supported_targets (program_name, stream);
499 if (exit_status == 0)
500 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
501 exit (exit_status);
502 }
503
504 static void
505 strip_usage (FILE *stream, int exit_status)
506 {
507 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
508 fprintf (stream, _(" Removes symbols and sections from files\n"));
509 fprintf (stream, _(" The options are:\n"));
510 fprintf (stream, _("\
511 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
512 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
513 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
514 -p --preserve-dates Copy modified/access timestamps to the output\n\
515 -R --remove-section=<name> Remove section <name> from the output\n\
516 -s --strip-all Remove all symbol and relocation information\n\
517 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
518 --strip-unneeded Remove all symbols not needed by relocations\n\
519 --only-keep-debug Strip everything but the debug information\n\
520 -N --strip-symbol=<name> Do not copy symbol <name>\n\
521 -K --keep-symbol=<name> Do not strip symbol <name>\n\
522 --keep-file-symbols Do not strip file symbol(s)\n\
523 -w --wildcard Permit wildcard in symbol comparison\n\
524 -x --discard-all Remove all non-global symbols\n\
525 -X --discard-locals Remove any compiler-generated symbols\n\
526 -v --verbose List all object files modified\n\
527 -V --version Display this program's version number\n\
528 -h --help Display this output\n\
529 --info List object formats & architectures supported\n\
530 -o <file> Place stripped output into <file>\n\
531 "));
532
533 list_supported_targets (program_name, stream);
534 if (exit_status == 0)
535 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
536 exit (exit_status);
537 }
538
539 /* Parse section flags into a flagword, with a fatal error if the
540 string can't be parsed. */
541
542 static flagword
543 parse_flags (const char *s)
544 {
545 flagword ret;
546 const char *snext;
547 int len;
548
549 ret = SEC_NO_FLAGS;
550
551 do
552 {
553 snext = strchr (s, ',');
554 if (snext == NULL)
555 len = strlen (s);
556 else
557 {
558 len = snext - s;
559 ++snext;
560 }
561
562 if (0) ;
563 #define PARSE_FLAG(fname,fval) \
564 else if (strncasecmp (fname, s, len) == 0) ret |= fval
565 PARSE_FLAG ("alloc", SEC_ALLOC);
566 PARSE_FLAG ("load", SEC_LOAD);
567 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
568 PARSE_FLAG ("readonly", SEC_READONLY);
569 PARSE_FLAG ("debug", SEC_DEBUGGING);
570 PARSE_FLAG ("code", SEC_CODE);
571 PARSE_FLAG ("data", SEC_DATA);
572 PARSE_FLAG ("rom", SEC_ROM);
573 PARSE_FLAG ("share", SEC_COFF_SHARED);
574 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
575 #undef PARSE_FLAG
576 else
577 {
578 char *copy;
579
580 copy = xmalloc (len + 1);
581 strncpy (copy, s, len);
582 copy[len] = '\0';
583 non_fatal (_("unrecognized section flag `%s'"), copy);
584 fatal (_("supported flags: %s"),
585 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
586 }
587
588 s = snext;
589 }
590 while (s != NULL);
591
592 return ret;
593 }
594
595 /* Find and optionally add an entry in the change_sections list. */
596
597 static struct section_list *
598 find_section_list (const char *name, bfd_boolean add)
599 {
600 struct section_list *p;
601
602 for (p = change_sections; p != NULL; p = p->next)
603 if (strcmp (p->name, name) == 0)
604 return p;
605
606 if (! add)
607 return NULL;
608
609 p = xmalloc (sizeof (struct section_list));
610 p->name = name;
611 p->used = FALSE;
612 p->remove = FALSE;
613 p->copy = FALSE;
614 p->change_vma = CHANGE_IGNORE;
615 p->change_lma = CHANGE_IGNORE;
616 p->vma_val = 0;
617 p->lma_val = 0;
618 p->set_flags = FALSE;
619 p->flags = 0;
620
621 p->next = change_sections;
622 change_sections = p;
623
624 return p;
625 }
626
627 /* Add a symbol to strip_specific_list. */
628
629 static void
630 add_specific_symbol (const char *name, struct symlist **list)
631 {
632 struct symlist *tmp_list;
633
634 tmp_list = xmalloc (sizeof (struct symlist));
635 tmp_list->name = name;
636 tmp_list->next = *list;
637 *list = tmp_list;
638 }
639
640 /* Add symbols listed in `filename' to strip_specific_list. */
641
642 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
643 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
644
645 static void
646 add_specific_symbols (const char *filename, struct symlist **list)
647 {
648 off_t size;
649 FILE * f;
650 char * line;
651 char * buffer;
652 unsigned int line_count;
653
654 size = get_file_size (filename);
655 if (size == 0)
656 {
657 status = 1;
658 return;
659 }
660
661 buffer = xmalloc (size + 2);
662 f = fopen (filename, FOPEN_RT);
663 if (f == NULL)
664 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
665
666 if (fread (buffer, 1, size, f) == 0 || ferror (f))
667 fatal (_("%s: fread failed"), filename);
668
669 fclose (f);
670 buffer [size] = '\n';
671 buffer [size + 1] = '\0';
672
673 line_count = 1;
674
675 for (line = buffer; * line != '\0'; line ++)
676 {
677 char * eol;
678 char * name;
679 char * name_end;
680 int finished = FALSE;
681
682 for (eol = line;; eol ++)
683 {
684 switch (* eol)
685 {
686 case '\n':
687 * eol = '\0';
688 /* Cope with \n\r. */
689 if (eol[1] == '\r')
690 ++ eol;
691 finished = TRUE;
692 break;
693
694 case '\r':
695 * eol = '\0';
696 /* Cope with \r\n. */
697 if (eol[1] == '\n')
698 ++ eol;
699 finished = TRUE;
700 break;
701
702 case 0:
703 finished = TRUE;
704 break;
705
706 case '#':
707 /* Line comment, Terminate the line here, in case a
708 name is present and then allow the rest of the
709 loop to find the real end of the line. */
710 * eol = '\0';
711 break;
712
713 default:
714 break;
715 }
716
717 if (finished)
718 break;
719 }
720
721 /* A name may now exist somewhere between 'line' and 'eol'.
722 Strip off leading whitespace and trailing whitespace,
723 then add it to the list. */
724 for (name = line; IS_WHITESPACE (* name); name ++)
725 ;
726 for (name_end = name;
727 (! IS_WHITESPACE (* name_end))
728 && (! IS_LINE_TERMINATOR (* name_end));
729 name_end ++)
730 ;
731
732 if (! IS_LINE_TERMINATOR (* name_end))
733 {
734 char * extra;
735
736 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
737 ;
738
739 if (! IS_LINE_TERMINATOR (* extra))
740 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
741 filename, line_count);
742 }
743
744 * name_end = '\0';
745
746 if (name_end > name)
747 add_specific_symbol (name, list);
748
749 /* Advance line pointer to end of line. The 'eol ++' in the for
750 loop above will then advance us to the start of the next line. */
751 line = eol;
752 line_count ++;
753 }
754 }
755
756 /* See whether a symbol should be stripped or kept based on
757 strip_specific_list and keep_symbols. */
758
759 static bfd_boolean
760 is_specified_symbol (const char *name, struct symlist *list)
761 {
762 struct symlist *tmp_list;
763
764 if (wildcard)
765 {
766 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
767 if (*(tmp_list->name) != '!')
768 {
769 if (!fnmatch (tmp_list->name, name, 0))
770 return TRUE;
771 }
772 else
773 {
774 if (fnmatch (tmp_list->name + 1, name, 0))
775 return TRUE;
776 }
777 }
778 else
779 {
780 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
781 if (strcmp (name, tmp_list->name) == 0)
782 return TRUE;
783 }
784
785 return FALSE;
786 }
787
788 /* See if a section is being removed. */
789
790 static bfd_boolean
791 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
792 {
793 if (sections_removed || sections_copied)
794 {
795 struct section_list *p;
796
797 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE);
798
799 if (sections_removed && p != NULL && p->remove)
800 return TRUE;
801 if (sections_copied && (p == NULL || ! p->copy))
802 return TRUE;
803 }
804
805 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
806 {
807 if (strip_symbols == STRIP_DEBUG
808 || strip_symbols == STRIP_UNNEEDED
809 || strip_symbols == STRIP_ALL
810 || discard_locals == LOCALS_ALL
811 || convert_debugging)
812 return TRUE;
813
814 if (strip_symbols == STRIP_NONDEBUG)
815 return FALSE;
816 }
817
818 /* PR binutils/3166
819 Group sections look like debugging sections but they are not.
820 (They have a non-zero size but they are not ALLOCated). */
821 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0
822 && strip_symbols == STRIP_NONDEBUG)
823 return TRUE;
824
825 return FALSE;
826 }
827
828 /* Return true if SYM is a hidden symbol. */
829
830 static bfd_boolean
831 is_hidden_symbol (asymbol *sym)
832 {
833 elf_symbol_type *elf_sym;
834
835 elf_sym = elf_symbol_from (sym->the_bfd, sym);
836 if (elf_sym != NULL)
837 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
838 {
839 case STV_HIDDEN:
840 case STV_INTERNAL:
841 return TRUE;
842 }
843 return FALSE;
844 }
845
846 /* Choose which symbol entries to copy; put the result in OSYMS.
847 We don't copy in place, because that confuses the relocs.
848 Return the number of symbols to print. */
849
850 static unsigned int
851 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
852 asymbol **isyms, long symcount)
853 {
854 asymbol **from = isyms, **to = osyms;
855 long src_count = 0, dst_count = 0;
856 int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
857 == HAS_RELOC;
858
859 for (; src_count < symcount; src_count++)
860 {
861 asymbol *sym = from[src_count];
862 flagword flags = sym->flags;
863 char *name = (char *) bfd_asymbol_name (sym);
864 int keep;
865 bfd_boolean undefined;
866 bfd_boolean rem_leading_char;
867 bfd_boolean add_leading_char;
868
869 undefined = bfd_is_und_section (bfd_get_section (sym));
870
871 if (redefine_sym_list)
872 {
873 char *old_name, *new_name;
874
875 old_name = (char *) bfd_asymbol_name (sym);
876 new_name = (char *) lookup_sym_redefinition (old_name);
877 bfd_asymbol_name (sym) = new_name;
878 name = new_name;
879 }
880
881 /* Check if we will remove the current leading character. */
882 rem_leading_char =
883 (name[0] == bfd_get_symbol_leading_char (abfd))
884 && (change_leading_char
885 || (remove_leading_char
886 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
887 || undefined
888 || bfd_is_com_section (bfd_get_section (sym)))));
889
890 /* Check if we will add a new leading character. */
891 add_leading_char =
892 change_leading_char
893 && (bfd_get_symbol_leading_char (obfd) != '\0')
894 && (bfd_get_symbol_leading_char (abfd) == '\0'
895 || (name[0] == bfd_get_symbol_leading_char (abfd)));
896
897 /* Short circuit for change_leading_char if we can do it in-place. */
898 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
899 {
900 name[0] = bfd_get_symbol_leading_char (obfd);
901 bfd_asymbol_name (sym) = name;
902 rem_leading_char = FALSE;
903 add_leading_char = FALSE;
904 }
905
906 /* Remove leading char. */
907 if (rem_leading_char)
908 bfd_asymbol_name (sym) = ++name;
909
910 /* Add new leading char and/or prefix. */
911 if (add_leading_char || prefix_symbols_string)
912 {
913 char *n, *ptr;
914
915 ptr = n = xmalloc (1 + strlen (prefix_symbols_string)
916 + strlen (name) + 1);
917 if (add_leading_char)
918 *ptr++ = bfd_get_symbol_leading_char (obfd);
919
920 if (prefix_symbols_string)
921 {
922 strcpy (ptr, prefix_symbols_string);
923 ptr += strlen (prefix_symbols_string);
924 }
925
926 strcpy (ptr, name);
927 bfd_asymbol_name (sym) = n;
928 name = n;
929 }
930
931 if (strip_symbols == STRIP_ALL)
932 keep = 0;
933 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
934 || ((flags & BSF_SECTION_SYM) != 0
935 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
936 & BSF_KEEP) != 0))
937 keep = 1;
938 else if (relocatable /* Relocatable file. */
939 && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
940 keep = 1;
941 else if (bfd_decode_symclass (sym) == 'I')
942 /* Global symbols in $idata sections need to be retained
943 even if relocatable is FALSE. External users of the
944 library containing the $idata section may reference these
945 symbols. */
946 keep = 1;
947 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
948 || (flags & BSF_WEAK) != 0
949 || undefined
950 || bfd_is_com_section (bfd_get_section (sym)))
951 keep = strip_symbols != STRIP_UNNEEDED;
952 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
953 keep = (strip_symbols != STRIP_DEBUG
954 && strip_symbols != STRIP_UNNEEDED
955 && ! convert_debugging);
956 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
957 /* COMDAT sections store special information in local
958 symbols, so we cannot risk stripping any of them. */
959 keep = 1;
960 else /* Local symbol. */
961 keep = (strip_symbols != STRIP_UNNEEDED
962 && (discard_locals != LOCALS_ALL
963 && (discard_locals != LOCALS_START_L
964 || ! bfd_is_local_label (abfd, sym))));
965
966 if (keep && is_specified_symbol (name, strip_specific_list))
967 keep = 0;
968 if (keep
969 && !(flags & BSF_KEEP)
970 && is_specified_symbol (name, strip_unneeded_list))
971 keep = 0;
972 if (!keep
973 && ((keep_file_symbols && (flags & BSF_FILE))
974 || is_specified_symbol (name, keep_specific_list)))
975 keep = 1;
976 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
977 keep = 0;
978
979 if (keep)
980 {
981 if ((flags & BSF_GLOBAL) != 0
982 && (weaken || is_specified_symbol (name, weaken_specific_list)))
983 {
984 sym->flags &= ~ BSF_GLOBAL;
985 sym->flags |= BSF_WEAK;
986 }
987
988 if (!undefined
989 && (flags & (BSF_GLOBAL | BSF_WEAK))
990 && (is_specified_symbol (name, localize_specific_list)
991 || (keepglobal_specific_list != NULL
992 && ! is_specified_symbol (name, keepglobal_specific_list))
993 || (localize_hidden && is_hidden_symbol (sym))))
994 {
995 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
996 sym->flags |= BSF_LOCAL;
997 }
998
999 if (!undefined
1000 && (flags & BSF_LOCAL)
1001 && is_specified_symbol (name, globalize_specific_list))
1002 {
1003 sym->flags &= ~ BSF_LOCAL;
1004 sym->flags |= BSF_GLOBAL;
1005 }
1006
1007 to[dst_count++] = sym;
1008 }
1009 }
1010
1011 to[dst_count] = NULL;
1012
1013 return dst_count;
1014 }
1015
1016 /* Find the redefined name of symbol SOURCE. */
1017
1018 static const char *
1019 lookup_sym_redefinition (const char *source)
1020 {
1021 struct redefine_node *list;
1022
1023 for (list = redefine_sym_list; list != NULL; list = list->next)
1024 if (strcmp (source, list->source) == 0)
1025 return list->target;
1026
1027 return source;
1028 }
1029
1030 /* Add a node to a symbol redefine list. */
1031
1032 static void
1033 redefine_list_append (const char *cause, const char *source, const char *target)
1034 {
1035 struct redefine_node **p;
1036 struct redefine_node *list;
1037 struct redefine_node *new_node;
1038
1039 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1040 {
1041 if (strcmp (source, list->source) == 0)
1042 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1043 cause, source);
1044
1045 if (strcmp (target, list->target) == 0)
1046 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1047 cause, target);
1048 }
1049
1050 new_node = xmalloc (sizeof (struct redefine_node));
1051
1052 new_node->source = strdup (source);
1053 new_node->target = strdup (target);
1054 new_node->next = NULL;
1055
1056 *p = new_node;
1057 }
1058
1059 /* Handle the --redefine-syms option. Read lines containing "old new"
1060 from the file, and add them to the symbol redefine list. */
1061
1062 static void
1063 add_redefine_syms_file (const char *filename)
1064 {
1065 FILE *file;
1066 char *buf;
1067 size_t bufsize;
1068 size_t len;
1069 size_t outsym_off;
1070 int c, lineno;
1071
1072 file = fopen (filename, "r");
1073 if (file == NULL)
1074 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1075 filename, strerror (errno));
1076
1077 bufsize = 100;
1078 buf = xmalloc (bufsize);
1079
1080 lineno = 1;
1081 c = getc (file);
1082 len = 0;
1083 outsym_off = 0;
1084 while (c != EOF)
1085 {
1086 /* Collect the input symbol name. */
1087 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1088 {
1089 if (c == '#')
1090 goto comment;
1091 buf[len++] = c;
1092 if (len >= bufsize)
1093 {
1094 bufsize *= 2;
1095 buf = xrealloc (buf, bufsize);
1096 }
1097 c = getc (file);
1098 }
1099 buf[len++] = '\0';
1100 if (c == EOF)
1101 break;
1102
1103 /* Eat white space between the symbol names. */
1104 while (IS_WHITESPACE (c))
1105 c = getc (file);
1106 if (c == '#' || IS_LINE_TERMINATOR (c))
1107 goto comment;
1108 if (c == EOF)
1109 break;
1110
1111 /* Collect the output symbol name. */
1112 outsym_off = len;
1113 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1114 {
1115 if (c == '#')
1116 goto comment;
1117 buf[len++] = c;
1118 if (len >= bufsize)
1119 {
1120 bufsize *= 2;
1121 buf = xrealloc (buf, bufsize);
1122 }
1123 c = getc (file);
1124 }
1125 buf[len++] = '\0';
1126 if (c == EOF)
1127 break;
1128
1129 /* Eat white space at end of line. */
1130 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1131 c = getc (file);
1132 if (c == '#')
1133 goto comment;
1134 /* Handle \r\n. */
1135 if ((c == '\r' && (c = getc (file)) == '\n')
1136 || c == '\n' || c == EOF)
1137 {
1138 end_of_line:
1139 /* Append the redefinition to the list. */
1140 if (buf[0] != '\0')
1141 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1142
1143 lineno++;
1144 len = 0;
1145 outsym_off = 0;
1146 if (c == EOF)
1147 break;
1148 c = getc (file);
1149 continue;
1150 }
1151 else
1152 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1153 comment:
1154 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1155 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1156 buf[len++] = '\0';
1157
1158 /* Eat the rest of the line and finish it. */
1159 while (c != '\n' && c != EOF)
1160 c = getc (file);
1161 goto end_of_line;
1162 }
1163
1164 if (len != 0)
1165 fatal (_("%s:%d: premature end of file"), filename, lineno);
1166
1167 free (buf);
1168 }
1169
1170 /* Copy unkown object file IBFD onto OBFD.
1171 Returns TRUE upon success, FALSE otherwise. */
1172
1173 static bfd_boolean
1174 copy_unknown_object (bfd *ibfd, bfd *obfd)
1175 {
1176 char *cbuf;
1177 int tocopy;
1178 long ncopied;
1179 long size;
1180 struct stat buf;
1181
1182 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1183 {
1184 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1185 return FALSE;
1186 }
1187
1188 size = buf.st_size;
1189 if (size < 0)
1190 {
1191 non_fatal (_("stat returns negative size for `%s'"),
1192 bfd_get_archive_filename (ibfd));
1193 return FALSE;
1194 }
1195
1196 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1197 {
1198 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1199 return FALSE;
1200 }
1201
1202 if (verbose)
1203 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1204 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1205
1206 cbuf = xmalloc (BUFSIZE);
1207 ncopied = 0;
1208 while (ncopied < size)
1209 {
1210 tocopy = size - ncopied;
1211 if (tocopy > BUFSIZE)
1212 tocopy = BUFSIZE;
1213
1214 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1215 != (bfd_size_type) tocopy)
1216 {
1217 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1218 free (cbuf);
1219 return FALSE;
1220 }
1221
1222 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1223 != (bfd_size_type) tocopy)
1224 {
1225 bfd_nonfatal (bfd_get_filename (obfd));
1226 free (cbuf);
1227 return FALSE;
1228 }
1229
1230 ncopied += tocopy;
1231 }
1232
1233 chmod (bfd_get_filename (obfd), buf.st_mode);
1234 free (cbuf);
1235 return TRUE;
1236 }
1237
1238 /* Copy object file IBFD onto OBFD.
1239 Returns TRUE upon success, FALSE otherwise. */
1240
1241 static bfd_boolean
1242 copy_object (bfd *ibfd, bfd *obfd)
1243 {
1244 bfd_vma start;
1245 long symcount;
1246 asection **osections = NULL;
1247 asection *gnu_debuglink_section = NULL;
1248 bfd_size_type *gaps = NULL;
1249 bfd_size_type max_gap = 0;
1250 long symsize;
1251 void *dhandle;
1252 enum bfd_architecture iarch;
1253 unsigned int imach;
1254
1255 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1256 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1257 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1258 fatal (_("Unable to change endianness of input file(s)"));
1259
1260 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1261 {
1262 bfd_nonfatal (bfd_get_filename (obfd));
1263 return FALSE;
1264 }
1265
1266 if (verbose)
1267 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1268 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1269 bfd_get_filename (obfd), bfd_get_target (obfd));
1270
1271 if (set_start_set)
1272 start = set_start;
1273 else
1274 start = bfd_get_start_address (ibfd);
1275 start += change_start;
1276
1277 /* Neither the start address nor the flags
1278 need to be set for a core file. */
1279 if (bfd_get_format (obfd) != bfd_core)
1280 {
1281 flagword flags;
1282
1283 flags = bfd_get_file_flags (ibfd);
1284 flags |= bfd_flags_to_set;
1285 flags &= ~bfd_flags_to_clear;
1286 flags &= bfd_applicable_file_flags (obfd);
1287
1288 if (!bfd_set_start_address (obfd, start)
1289 || !bfd_set_file_flags (obfd, flags))
1290 {
1291 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1292 return FALSE;
1293 }
1294 }
1295
1296 /* Copy architecture of input file to output file. */
1297 iarch = bfd_get_arch (ibfd);
1298 imach = bfd_get_mach (ibfd);
1299 if (!bfd_set_arch_mach (obfd, iarch, imach)
1300 && (ibfd->target_defaulted
1301 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1302 {
1303 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1304 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1305 bfd_get_archive_filename (ibfd));
1306 else
1307 non_fatal (_("Warning: Output file cannot represent architecture `%s'"),
1308 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1309 bfd_get_mach (ibfd)));
1310 return FALSE;
1311 }
1312
1313 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1314 {
1315 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1316 return FALSE;
1317 }
1318
1319 if (isympp)
1320 free (isympp);
1321
1322 if (osympp != isympp)
1323 free (osympp);
1324
1325 isympp = NULL;
1326 osympp = NULL;
1327
1328 /* BFD mandates that all output sections be created and sizes set before
1329 any output is done. Thus, we traverse all sections multiple times. */
1330 bfd_map_over_sections (ibfd, setup_section, obfd);
1331
1332 setup_bfd_headers (ibfd, obfd);
1333
1334 if (add_sections != NULL)
1335 {
1336 struct section_add *padd;
1337 struct section_list *pset;
1338
1339 for (padd = add_sections; padd != NULL; padd = padd->next)
1340 {
1341 flagword flags;
1342
1343 pset = find_section_list (padd->name, FALSE);
1344 if (pset != NULL)
1345 pset->used = TRUE;
1346
1347 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1348 if (pset != NULL && pset->set_flags)
1349 flags = pset->flags | SEC_HAS_CONTENTS;
1350
1351 /* bfd_make_section_with_flags() does not return very helpful
1352 error codes, so check for the most likely user error first. */
1353 if (bfd_get_section_by_name (obfd, padd->name))
1354 {
1355 non_fatal (_("can't add section '%s' - it already exists!"), padd->name);
1356 return FALSE;
1357 }
1358 else
1359 {
1360 padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
1361 if (padd->section == NULL)
1362 {
1363 non_fatal (_("can't create section `%s': %s"),
1364 padd->name, bfd_errmsg (bfd_get_error ()));
1365 return FALSE;
1366 }
1367 }
1368
1369 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1370 {
1371 bfd_nonfatal (bfd_get_filename (obfd));
1372 return FALSE;
1373 }
1374
1375 if (pset != NULL)
1376 {
1377 if (pset->change_vma != CHANGE_IGNORE)
1378 if (! bfd_set_section_vma (obfd, padd->section,
1379 pset->vma_val))
1380 {
1381 bfd_nonfatal (bfd_get_filename (obfd));
1382 return FALSE;
1383 }
1384
1385 if (pset->change_lma != CHANGE_IGNORE)
1386 {
1387 padd->section->lma = pset->lma_val;
1388
1389 if (! bfd_set_section_alignment
1390 (obfd, padd->section,
1391 bfd_section_alignment (obfd, padd->section)))
1392 {
1393 bfd_nonfatal (bfd_get_filename (obfd));
1394 return FALSE;
1395 }
1396 }
1397 }
1398 }
1399 }
1400
1401 if (gnu_debuglink_filename != NULL)
1402 {
1403 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1404 (obfd, gnu_debuglink_filename);
1405
1406 if (gnu_debuglink_section == NULL)
1407 {
1408 bfd_nonfatal (gnu_debuglink_filename);
1409 return FALSE;
1410 }
1411
1412 /* Special processing for PE format files. We
1413 have no way to distinguish PE from COFF here. */
1414 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1415 {
1416 bfd_vma debuglink_vma;
1417 asection * highest_section;
1418 asection * sec;
1419
1420 /* The PE spec requires that all sections be adjacent and sorted
1421 in ascending order of VMA. It also specifies that debug
1422 sections should be last. This is despite the fact that debug
1423 sections are not loaded into memory and so in theory have no
1424 use for a VMA.
1425
1426 This means that the debuglink section must be given a non-zero
1427 VMA which makes it contiguous with other debug sections. So
1428 walk the current section list, find the section with the
1429 highest VMA and start the debuglink section after that one. */
1430 for (sec = obfd->sections, highest_section = NULL;
1431 sec != NULL;
1432 sec = sec->next)
1433 if (sec->vma > 0
1434 && (highest_section == NULL
1435 || sec->vma > highest_section->vma))
1436 highest_section = sec;
1437
1438 if (highest_section)
1439 debuglink_vma = BFD_ALIGN (highest_section->vma
1440 + highest_section->size,
1441 /* FIXME: We ought to be using
1442 COFF_PAGE_SIZE here or maybe
1443 bfd_get_section_alignment() (if it
1444 was set) but since this is for PE
1445 and we know the required alignment
1446 it is easier just to hard code it. */
1447 0x1000);
1448 else
1449 /* Umm, not sure what to do in this case. */
1450 debuglink_vma = 0x1000;
1451
1452 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1453 }
1454 }
1455
1456 if (bfd_count_sections (obfd) == 0)
1457 {
1458 non_fatal (_("there are no sections to be copied!"));
1459 return FALSE;
1460 }
1461
1462 if (gap_fill_set || pad_to_set)
1463 {
1464 asection **set;
1465 unsigned int c, i;
1466
1467 /* We must fill in gaps between the sections and/or we must pad
1468 the last section to a specified address. We do this by
1469 grabbing a list of the sections, sorting them by VMA, and
1470 increasing the section sizes as required to fill the gaps.
1471 We write out the gap contents below. */
1472
1473 c = bfd_count_sections (obfd);
1474 osections = xmalloc (c * sizeof (asection *));
1475 set = osections;
1476 bfd_map_over_sections (obfd, get_sections, &set);
1477
1478 qsort (osections, c, sizeof (asection *), compare_section_lma);
1479
1480 gaps = xmalloc (c * sizeof (bfd_size_type));
1481 memset (gaps, 0, c * sizeof (bfd_size_type));
1482
1483 if (gap_fill_set)
1484 {
1485 for (i = 0; i < c - 1; i++)
1486 {
1487 flagword flags;
1488 bfd_size_type size;
1489 bfd_vma gap_start, gap_stop;
1490
1491 flags = bfd_get_section_flags (obfd, osections[i]);
1492 if ((flags & SEC_HAS_CONTENTS) == 0
1493 || (flags & SEC_LOAD) == 0)
1494 continue;
1495
1496 size = bfd_section_size (obfd, osections[i]);
1497 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1498 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1499 if (gap_start < gap_stop)
1500 {
1501 if (! bfd_set_section_size (obfd, osections[i],
1502 size + (gap_stop - gap_start)))
1503 {
1504 non_fatal (_("Can't fill gap after %s: %s"),
1505 bfd_get_section_name (obfd, osections[i]),
1506 bfd_errmsg (bfd_get_error ()));
1507 status = 1;
1508 break;
1509 }
1510 gaps[i] = gap_stop - gap_start;
1511 if (max_gap < gap_stop - gap_start)
1512 max_gap = gap_stop - gap_start;
1513 }
1514 }
1515 }
1516
1517 if (pad_to_set)
1518 {
1519 bfd_vma lma;
1520 bfd_size_type size;
1521
1522 lma = bfd_section_lma (obfd, osections[c - 1]);
1523 size = bfd_section_size (obfd, osections[c - 1]);
1524 if (lma + size < pad_to)
1525 {
1526 if (! bfd_set_section_size (obfd, osections[c - 1],
1527 pad_to - lma))
1528 {
1529 non_fatal (_("Can't add padding to %s: %s"),
1530 bfd_get_section_name (obfd, osections[c - 1]),
1531 bfd_errmsg (bfd_get_error ()));
1532 status = 1;
1533 }
1534 else
1535 {
1536 gaps[c - 1] = pad_to - (lma + size);
1537 if (max_gap < pad_to - (lma + size))
1538 max_gap = pad_to - (lma + size);
1539 }
1540 }
1541 }
1542 }
1543
1544 /* Symbol filtering must happen after the output sections
1545 have been created, but before their contents are set. */
1546 dhandle = NULL;
1547 symsize = bfd_get_symtab_upper_bound (ibfd);
1548 if (symsize < 0)
1549 {
1550 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1551 return FALSE;
1552 }
1553
1554 osympp = isympp = xmalloc (symsize);
1555 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1556 if (symcount < 0)
1557 {
1558 bfd_nonfatal (bfd_get_filename (ibfd));
1559 return FALSE;
1560 }
1561
1562 if (convert_debugging)
1563 dhandle = read_debugging_info (ibfd, isympp, symcount);
1564
1565 if (strip_symbols == STRIP_DEBUG
1566 || strip_symbols == STRIP_ALL
1567 || strip_symbols == STRIP_UNNEEDED
1568 || strip_symbols == STRIP_NONDEBUG
1569 || discard_locals != LOCALS_UNDEF
1570 || localize_hidden
1571 || strip_specific_list != NULL
1572 || keep_specific_list != NULL
1573 || localize_specific_list != NULL
1574 || globalize_specific_list != NULL
1575 || keepglobal_specific_list != NULL
1576 || weaken_specific_list != NULL
1577 || prefix_symbols_string
1578 || sections_removed
1579 || sections_copied
1580 || convert_debugging
1581 || change_leading_char
1582 || remove_leading_char
1583 || redefine_sym_list
1584 || weaken)
1585 {
1586 /* Mark symbols used in output relocations so that they
1587 are kept, even if they are local labels or static symbols.
1588
1589 Note we iterate over the input sections examining their
1590 relocations since the relocations for the output sections
1591 haven't been set yet. mark_symbols_used_in_relocations will
1592 ignore input sections which have no corresponding output
1593 section. */
1594 if (strip_symbols != STRIP_ALL)
1595 bfd_map_over_sections (ibfd,
1596 mark_symbols_used_in_relocations,
1597 isympp);
1598 osympp = xmalloc ((symcount + 1) * sizeof (asymbol *));
1599 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1600 }
1601
1602 if (convert_debugging && dhandle != NULL)
1603 {
1604 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1605 {
1606 status = 1;
1607 return FALSE;
1608 }
1609 }
1610
1611 bfd_set_symtab (obfd, osympp, symcount);
1612
1613 /* This has to happen after the symbol table has been set. */
1614 bfd_map_over_sections (ibfd, copy_section, obfd);
1615
1616 if (add_sections != NULL)
1617 {
1618 struct section_add *padd;
1619
1620 for (padd = add_sections; padd != NULL; padd = padd->next)
1621 {
1622 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1623 0, padd->size))
1624 {
1625 bfd_nonfatal (bfd_get_filename (obfd));
1626 return FALSE;
1627 }
1628 }
1629 }
1630
1631 if (gnu_debuglink_filename != NULL)
1632 {
1633 if (! bfd_fill_in_gnu_debuglink_section
1634 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
1635 {
1636 bfd_nonfatal (gnu_debuglink_filename);
1637 return FALSE;
1638 }
1639 }
1640
1641 if (gap_fill_set || pad_to_set)
1642 {
1643 bfd_byte *buf;
1644 int c, i;
1645
1646 /* Fill in the gaps. */
1647 if (max_gap > 8192)
1648 max_gap = 8192;
1649 buf = xmalloc (max_gap);
1650 memset (buf, gap_fill, max_gap);
1651
1652 c = bfd_count_sections (obfd);
1653 for (i = 0; i < c; i++)
1654 {
1655 if (gaps[i] != 0)
1656 {
1657 bfd_size_type left;
1658 file_ptr off;
1659
1660 left = gaps[i];
1661 off = bfd_section_size (obfd, osections[i]) - left;
1662
1663 while (left > 0)
1664 {
1665 bfd_size_type now;
1666
1667 if (left > 8192)
1668 now = 8192;
1669 else
1670 now = left;
1671
1672 if (! bfd_set_section_contents (obfd, osections[i], buf,
1673 off, now))
1674 {
1675 bfd_nonfatal (bfd_get_filename (obfd));
1676 return FALSE;
1677 }
1678
1679 left -= now;
1680 off += now;
1681 }
1682 }
1683 }
1684 }
1685
1686 /* Allow the BFD backend to copy any private data it understands
1687 from the input BFD to the output BFD. This is done last to
1688 permit the routine to look at the filtered symbol table, which is
1689 important for the ECOFF code at least. */
1690 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
1691 && strip_symbols == STRIP_NONDEBUG)
1692 /* Do not copy the private data when creating an ELF format
1693 debug info file. We do not want the program headers. */
1694 ;
1695 else if (! bfd_copy_private_bfd_data (ibfd, obfd))
1696 {
1697 non_fatal (_("%s: error copying private BFD data: %s"),
1698 bfd_get_filename (obfd),
1699 bfd_errmsg (bfd_get_error ()));
1700 return FALSE;
1701 }
1702
1703 /* Switch to the alternate machine code. We have to do this at the
1704 very end, because we only initialize the header when we create
1705 the first section. */
1706 if (use_alt_mach_code != 0)
1707 {
1708 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
1709 {
1710 non_fatal (_("this target does not support %lu alternative machine codes"),
1711 use_alt_mach_code);
1712 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
1713 {
1714 non_fatal (_("treating that number as an absolute e_machine value instead"));
1715 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
1716 }
1717 else
1718 non_fatal (_("ignoring the alternative value"));
1719 }
1720 }
1721
1722 return TRUE;
1723 }
1724
1725 #undef MKDIR
1726 #if defined (_WIN32) && !defined (__CYGWIN32__)
1727 #define MKDIR(DIR, MODE) mkdir (DIR)
1728 #else
1729 #define MKDIR(DIR, MODE) mkdir (DIR, MODE)
1730 #endif
1731
1732 /* Read each archive element in turn from IBFD, copy the
1733 contents to temp file, and keep the temp file handle.
1734 If 'force_output_target' is TRUE then make sure that
1735 all elements in the new archive are of the type
1736 'output_target'. */
1737
1738 static void
1739 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
1740 bfd_boolean force_output_target)
1741 {
1742 struct name_list
1743 {
1744 struct name_list *next;
1745 const char *name;
1746 bfd *obfd;
1747 } *list, *l;
1748 bfd **ptr = &obfd->archive_head;
1749 bfd *this_element;
1750 char *dir = make_tempname (bfd_get_filename (obfd));
1751
1752 /* Make a temp directory to hold the contents. */
1753 if (MKDIR (dir, 0700) != 0)
1754 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1755 dir, strerror (errno));
1756
1757 obfd->has_armap = ibfd->has_armap;
1758
1759 list = NULL;
1760
1761 this_element = bfd_openr_next_archived_file (ibfd, NULL);
1762
1763 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1764 RETURN_NONFATAL (bfd_get_filename (obfd));
1765
1766 while (!status && this_element != NULL)
1767 {
1768 char *output_name;
1769 bfd *output_bfd;
1770 bfd *last_element;
1771 struct stat buf;
1772 int stat_status = 0;
1773 bfd_boolean delete = TRUE;
1774
1775 /* Create an output file for this member. */
1776 output_name = concat (dir, "/",
1777 bfd_get_filename (this_element), (char *) 0);
1778
1779 /* If the file already exists, make another temp dir. */
1780 if (stat (output_name, &buf) >= 0)
1781 {
1782 output_name = make_tempname (output_name);
1783 if (MKDIR (output_name, 0700) != 0)
1784 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1785 output_name, strerror (errno));
1786
1787 l = xmalloc (sizeof (struct name_list));
1788 l->name = output_name;
1789 l->next = list;
1790 l->obfd = NULL;
1791 list = l;
1792 output_name = concat (output_name, "/",
1793 bfd_get_filename (this_element), (char *) 0);
1794 }
1795
1796 if (preserve_dates)
1797 {
1798 stat_status = bfd_stat_arch_elt (this_element, &buf);
1799
1800 if (stat_status != 0)
1801 non_fatal (_("internal stat error on %s"),
1802 bfd_get_filename (this_element));
1803 }
1804
1805 l = xmalloc (sizeof (struct name_list));
1806 l->name = output_name;
1807 l->next = list;
1808 l->obfd = NULL;
1809 list = l;
1810
1811 if (bfd_check_format (this_element, bfd_object))
1812 {
1813 /* PR binutils/3110: Cope with archives
1814 containing multiple target types. */
1815 if (force_output_target)
1816 output_bfd = bfd_openw (output_name, output_target);
1817 else
1818 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
1819
1820 if (output_bfd == NULL)
1821 RETURN_NONFATAL (output_name);
1822
1823 delete = ! copy_object (this_element, output_bfd);
1824
1825 if (! delete
1826 || bfd_get_arch (this_element) != bfd_arch_unknown)
1827 {
1828 if (!bfd_close (output_bfd))
1829 {
1830 bfd_nonfatal (bfd_get_filename (output_bfd));
1831 /* Error in new object file. Don't change archive. */
1832 status = 1;
1833 }
1834 }
1835 else
1836 goto copy_unknown_element;
1837 }
1838 else
1839 {
1840 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1841 bfd_get_archive_filename (this_element));
1842
1843 output_bfd = bfd_openw (output_name, output_target);
1844 copy_unknown_element:
1845 delete = !copy_unknown_object (this_element, output_bfd);
1846 if (!bfd_close_all_done (output_bfd))
1847 {
1848 bfd_nonfatal (bfd_get_filename (output_bfd));
1849 /* Error in new object file. Don't change archive. */
1850 status = 1;
1851 }
1852 }
1853
1854 if (delete)
1855 {
1856 unlink (output_name);
1857 status = 1;
1858 }
1859 else
1860 {
1861 if (preserve_dates && stat_status == 0)
1862 set_times (output_name, &buf);
1863
1864 /* Open the newly output file and attach to our list. */
1865 output_bfd = bfd_openr (output_name, output_target);
1866
1867 l->obfd = output_bfd;
1868
1869 *ptr = output_bfd;
1870 ptr = &output_bfd->next;
1871
1872 last_element = this_element;
1873
1874 this_element = bfd_openr_next_archived_file (ibfd, last_element);
1875
1876 bfd_close (last_element);
1877 }
1878 }
1879 *ptr = NULL;
1880
1881 if (!bfd_close (obfd))
1882 RETURN_NONFATAL (bfd_get_filename (obfd));
1883
1884 if (!bfd_close (ibfd))
1885 RETURN_NONFATAL (bfd_get_filename (ibfd));
1886
1887 /* Delete all the files that we opened. */
1888 for (l = list; l != NULL; l = l->next)
1889 {
1890 if (l->obfd == NULL)
1891 rmdir (l->name);
1892 else
1893 {
1894 bfd_close (l->obfd);
1895 unlink (l->name);
1896 }
1897 }
1898 rmdir (dir);
1899 }
1900
1901 /* The top-level control. */
1902
1903 static void
1904 copy_file (const char *input_filename, const char *output_filename,
1905 const char *input_target, const char *output_target)
1906 {
1907 bfd *ibfd;
1908 char **obj_matching;
1909 char **core_matching;
1910
1911 if (get_file_size (input_filename) < 1)
1912 {
1913 status = 1;
1914 return;
1915 }
1916
1917 /* To allow us to do "strip *" without dying on the first
1918 non-object file, failures are nonfatal. */
1919 ibfd = bfd_openr (input_filename, input_target);
1920 if (ibfd == NULL)
1921 RETURN_NONFATAL (input_filename);
1922
1923 if (bfd_check_format (ibfd, bfd_archive))
1924 {
1925 bfd_boolean force_output_target;
1926 bfd *obfd;
1927
1928 /* bfd_get_target does not return the correct value until
1929 bfd_check_format succeeds. */
1930 if (output_target == NULL)
1931 {
1932 output_target = bfd_get_target (ibfd);
1933 force_output_target = FALSE;
1934 }
1935 else
1936 force_output_target = TRUE;
1937
1938 obfd = bfd_openw (output_filename, output_target);
1939 if (obfd == NULL)
1940 RETURN_NONFATAL (output_filename);
1941
1942 copy_archive (ibfd, obfd, output_target, force_output_target);
1943 }
1944 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
1945 {
1946 bfd *obfd;
1947 do_copy:
1948
1949 /* bfd_get_target does not return the correct value until
1950 bfd_check_format succeeds. */
1951 if (output_target == NULL)
1952 output_target = bfd_get_target (ibfd);
1953
1954 obfd = bfd_openw (output_filename, output_target);
1955 if (obfd == NULL)
1956 RETURN_NONFATAL (output_filename);
1957
1958 if (! copy_object (ibfd, obfd))
1959 status = 1;
1960
1961 if (!bfd_close (obfd))
1962 RETURN_NONFATAL (output_filename);
1963
1964 if (!bfd_close (ibfd))
1965 RETURN_NONFATAL (input_filename);
1966
1967 }
1968 else
1969 {
1970 bfd_error_type obj_error = bfd_get_error ();
1971 bfd_error_type core_error;
1972
1973 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
1974 {
1975 /* This probably can't happen.. */
1976 if (obj_error == bfd_error_file_ambiguously_recognized)
1977 free (obj_matching);
1978 goto do_copy;
1979 }
1980
1981 core_error = bfd_get_error ();
1982 /* Report the object error in preference to the core error. */
1983 if (obj_error != core_error)
1984 bfd_set_error (obj_error);
1985
1986 bfd_nonfatal (input_filename);
1987
1988 if (obj_error == bfd_error_file_ambiguously_recognized)
1989 {
1990 list_matching_formats (obj_matching);
1991 free (obj_matching);
1992 }
1993 if (core_error == bfd_error_file_ambiguously_recognized)
1994 {
1995 list_matching_formats (core_matching);
1996 free (core_matching);
1997 }
1998
1999 status = 1;
2000 }
2001 }
2002
2003 /* Add a name to the section renaming list. */
2004
2005 static void
2006 add_section_rename (const char * old_name, const char * new_name,
2007 flagword flags)
2008 {
2009 section_rename * rename;
2010
2011 /* Check for conflicts first. */
2012 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2013 if (strcmp (rename->old_name, old_name) == 0)
2014 {
2015 /* Silently ignore duplicate definitions. */
2016 if (strcmp (rename->new_name, new_name) == 0
2017 && rename->flags == flags)
2018 return;
2019
2020 fatal (_("Multiple renames of section %s"), old_name);
2021 }
2022
2023 rename = xmalloc (sizeof (* rename));
2024
2025 rename->old_name = old_name;
2026 rename->new_name = new_name;
2027 rename->flags = flags;
2028 rename->next = section_rename_list;
2029
2030 section_rename_list = rename;
2031 }
2032
2033 /* Check the section rename list for a new name of the input section
2034 ISECTION. Return the new name if one is found.
2035 Also set RETURNED_FLAGS to the flags to be used for this section. */
2036
2037 static const char *
2038 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2039 flagword * returned_flags)
2040 {
2041 const char * old_name = bfd_section_name (ibfd, isection);
2042 section_rename * rename;
2043
2044 /* Default to using the flags of the input section. */
2045 * returned_flags = bfd_get_section_flags (ibfd, isection);
2046
2047 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2048 if (strcmp (rename->old_name, old_name) == 0)
2049 {
2050 if (rename->flags != (flagword) -1)
2051 * returned_flags = rename->flags;
2052
2053 return rename->new_name;
2054 }
2055
2056 return old_name;
2057 }
2058
2059 /* Once each of the sections is copied, we may still need to do some
2060 finalization work for private section headers. Do that here. */
2061
2062 static void
2063 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2064 {
2065 const char *err;
2066
2067 /* Allow the BFD backend to copy any private data it understands
2068 from the input section to the output section. */
2069 if (! bfd_copy_private_header_data (ibfd, obfd))
2070 {
2071 err = _("private header data");
2072 goto loser;
2073 }
2074
2075 /* All went well. */
2076 return;
2077
2078 loser:
2079 non_fatal (_("%s: error in %s: %s"),
2080 bfd_get_filename (ibfd),
2081 err, bfd_errmsg (bfd_get_error ()));
2082 status = 1;
2083 }
2084
2085 /* Create a section in OBFD with the same
2086 name and attributes as ISECTION in IBFD. */
2087
2088 static void
2089 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2090 {
2091 bfd *obfd = obfdarg;
2092 struct section_list *p;
2093 sec_ptr osection;
2094 bfd_size_type size;
2095 bfd_vma vma;
2096 bfd_vma lma;
2097 flagword flags;
2098 const char *err;
2099 const char * name;
2100 char *prefix = NULL;
2101
2102 if (is_strip_section (ibfd, isection))
2103 return;
2104
2105 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
2106 if (p != NULL)
2107 p->used = TRUE;
2108
2109 /* Get the, possibly new, name of the output section. */
2110 name = find_section_rename (ibfd, isection, & flags);
2111
2112 /* Prefix sections. */
2113 if ((prefix_alloc_sections_string)
2114 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2115 prefix = prefix_alloc_sections_string;
2116 else if (prefix_sections_string)
2117 prefix = prefix_sections_string;
2118
2119 if (prefix)
2120 {
2121 char *n;
2122
2123 n = xmalloc (strlen (prefix) + strlen (name) + 1);
2124 strcpy (n, prefix);
2125 strcat (n, name);
2126 name = n;
2127 }
2128
2129 if (p != NULL && p->set_flags)
2130 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2131 else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0)
2132 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
2133
2134 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2135
2136 if (osection == NULL)
2137 {
2138 err = _("making");
2139 goto loser;
2140 }
2141
2142 if (strip_symbols == STRIP_NONDEBUG
2143 && obfd->xvec->flavour == bfd_target_elf_flavour
2144 && (flags & SEC_ALLOC) != 0
2145 && (p == NULL || !p->set_flags))
2146 elf_section_type (osection) = SHT_NOBITS;
2147
2148 size = bfd_section_size (ibfd, isection);
2149 if (copy_byte >= 0)
2150 size = (size + interleave - 1) / interleave;
2151 if (! bfd_set_section_size (obfd, osection, size))
2152 {
2153 err = _("size");
2154 goto loser;
2155 }
2156
2157 vma = bfd_section_vma (ibfd, isection);
2158 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2159 vma += p->vma_val;
2160 else if (p != NULL && p->change_vma == CHANGE_SET)
2161 vma = p->vma_val;
2162 else
2163 vma += change_section_address;
2164
2165 if (! bfd_set_section_vma (obfd, osection, vma))
2166 {
2167 err = _("vma");
2168 goto loser;
2169 }
2170
2171 lma = isection->lma;
2172 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2173 {
2174 if (p->change_lma == CHANGE_MODIFY)
2175 lma += p->lma_val;
2176 else if (p->change_lma == CHANGE_SET)
2177 lma = p->lma_val;
2178 else
2179 abort ();
2180 }
2181 else
2182 lma += change_section_address;
2183
2184 osection->lma = lma;
2185
2186 /* FIXME: This is probably not enough. If we change the LMA we
2187 may have to recompute the header for the file as well. */
2188 if (!bfd_set_section_alignment (obfd,
2189 osection,
2190 bfd_section_alignment (ibfd, isection)))
2191 {
2192 err = _("alignment");
2193 goto loser;
2194 }
2195
2196 /* Copy merge entity size. */
2197 osection->entsize = isection->entsize;
2198
2199 /* This used to be mangle_section; we do here to avoid using
2200 bfd_get_section_by_name since some formats allow multiple
2201 sections with the same name. */
2202 isection->output_section = osection;
2203 isection->output_offset = 0;
2204
2205 /* Allow the BFD backend to copy any private data it understands
2206 from the input section to the output section. */
2207 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
2208 && strip_symbols == STRIP_NONDEBUG)
2209 /* Do not copy the private data when creating an ELF format
2210 debug info file. We do not want the program headers. */
2211 ;
2212 else if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2213 {
2214 err = _("private data");
2215 goto loser;
2216 }
2217
2218 /* All went well. */
2219 return;
2220
2221 loser:
2222 non_fatal (_("%s: section `%s': error in %s: %s"),
2223 bfd_get_filename (ibfd),
2224 bfd_section_name (ibfd, isection),
2225 err, bfd_errmsg (bfd_get_error ()));
2226 status = 1;
2227 }
2228
2229 /* Copy the data of input section ISECTION of IBFD
2230 to an output section with the same name in OBFD.
2231 If stripping then don't copy any relocation info. */
2232
2233 static void
2234 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2235 {
2236 bfd *obfd = obfdarg;
2237 struct section_list *p;
2238 arelent **relpp;
2239 long relcount;
2240 sec_ptr osection;
2241 bfd_size_type size;
2242 long relsize;
2243 flagword flags;
2244
2245 /* If we have already failed earlier on,
2246 do not keep on generating complaints now. */
2247 if (status != 0)
2248 return;
2249
2250 if (is_strip_section (ibfd, isection))
2251 return;
2252
2253 flags = bfd_get_section_flags (ibfd, isection);
2254 if ((flags & SEC_GROUP) != 0)
2255 return;
2256
2257 osection = isection->output_section;
2258 size = bfd_get_section_size (isection);
2259
2260 if (size == 0 || osection == 0)
2261 return;
2262
2263 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2264
2265 /* Core files do not need to be relocated. */
2266 if (bfd_get_format (obfd) == bfd_core)
2267 relsize = 0;
2268 else
2269 {
2270 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2271
2272 if (relsize < 0)
2273 {
2274 /* Do not complain if the target does not support relocations. */
2275 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2276 relsize = 0;
2277 else
2278 RETURN_NONFATAL (bfd_get_filename (ibfd));
2279 }
2280 }
2281
2282 if (relsize == 0)
2283 bfd_set_reloc (obfd, osection, NULL, 0);
2284 else
2285 {
2286 relpp = xmalloc (relsize);
2287 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2288 if (relcount < 0)
2289 RETURN_NONFATAL (bfd_get_filename (ibfd));
2290
2291 if (strip_symbols == STRIP_ALL)
2292 {
2293 /* Remove relocations which are not in
2294 keep_strip_specific_list. */
2295 arelent **temp_relpp;
2296 long temp_relcount = 0;
2297 long i;
2298
2299 temp_relpp = xmalloc (relsize);
2300 for (i = 0; i < relcount; i++)
2301 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2302 keep_specific_list))
2303 temp_relpp [temp_relcount++] = relpp [i];
2304 relcount = temp_relcount;
2305 free (relpp);
2306 relpp = temp_relpp;
2307 }
2308
2309 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2310 if (relcount == 0)
2311 free (relpp);
2312 }
2313
2314 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2315 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2316 {
2317 void *memhunk = xmalloc (size);
2318
2319 if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
2320 RETURN_NONFATAL (bfd_get_filename (ibfd));
2321
2322 if (copy_byte >= 0)
2323 {
2324 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2325 char *from = (char *) memhunk + copy_byte;
2326 char *to = memhunk;
2327 char *end = (char *) memhunk + size;
2328
2329 for (; from < end; from += interleave)
2330 *to++ = *from;
2331
2332 size = (size + interleave - 1 - copy_byte) / interleave;
2333 osection->lma /= interleave;
2334 }
2335
2336 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2337 RETURN_NONFATAL (bfd_get_filename (obfd));
2338
2339 free (memhunk);
2340 }
2341 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2342 {
2343 void *memhunk = xmalloc (size);
2344
2345 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2346 flag--they can just remove the section entirely and add it
2347 back again. However, we do permit them to turn on the
2348 SEC_HAS_CONTENTS flag, and take it to mean that the section
2349 contents should be zeroed out. */
2350
2351 memset (memhunk, 0, size);
2352 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2353 RETURN_NONFATAL (bfd_get_filename (obfd));
2354 free (memhunk);
2355 }
2356 }
2357
2358 /* Get all the sections. This is used when --gap-fill or --pad-to is
2359 used. */
2360
2361 static void
2362 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
2363 {
2364 asection ***secppp = secppparg;
2365
2366 **secppp = osection;
2367 ++(*secppp);
2368 }
2369
2370 /* Sort sections by VMA. This is called via qsort, and is used when
2371 --gap-fill or --pad-to is used. We force non loadable or empty
2372 sections to the front, where they are easier to ignore. */
2373
2374 static int
2375 compare_section_lma (const void *arg1, const void *arg2)
2376 {
2377 const asection *const *sec1 = arg1;
2378 const asection *const *sec2 = arg2;
2379 flagword flags1, flags2;
2380
2381 /* Sort non loadable sections to the front. */
2382 flags1 = (*sec1)->flags;
2383 flags2 = (*sec2)->flags;
2384 if ((flags1 & SEC_HAS_CONTENTS) == 0
2385 || (flags1 & SEC_LOAD) == 0)
2386 {
2387 if ((flags2 & SEC_HAS_CONTENTS) != 0
2388 && (flags2 & SEC_LOAD) != 0)
2389 return -1;
2390 }
2391 else
2392 {
2393 if ((flags2 & SEC_HAS_CONTENTS) == 0
2394 || (flags2 & SEC_LOAD) == 0)
2395 return 1;
2396 }
2397
2398 /* Sort sections by LMA. */
2399 if ((*sec1)->lma > (*sec2)->lma)
2400 return 1;
2401 else if ((*sec1)->lma < (*sec2)->lma)
2402 return -1;
2403
2404 /* Sort sections with the same LMA by size. */
2405 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
2406 return 1;
2407 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
2408 return -1;
2409
2410 return 0;
2411 }
2412
2413 /* Mark all the symbols which will be used in output relocations with
2414 the BSF_KEEP flag so that those symbols will not be stripped.
2415
2416 Ignore relocations which will not appear in the output file. */
2417
2418 static void
2419 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
2420 {
2421 asymbol **symbols = symbolsarg;
2422 long relsize;
2423 arelent **relpp;
2424 long relcount, i;
2425
2426 /* Ignore an input section with no corresponding output section. */
2427 if (isection->output_section == NULL)
2428 return;
2429
2430 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2431 if (relsize < 0)
2432 {
2433 /* Do not complain if the target does not support relocations. */
2434 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2435 return;
2436 bfd_fatal (bfd_get_filename (ibfd));
2437 }
2438
2439 if (relsize == 0)
2440 return;
2441
2442 relpp = xmalloc (relsize);
2443 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2444 if (relcount < 0)
2445 bfd_fatal (bfd_get_filename (ibfd));
2446
2447 /* Examine each symbol used in a relocation. If it's not one of the
2448 special bfd section symbols, then mark it with BSF_KEEP. */
2449 for (i = 0; i < relcount; i++)
2450 {
2451 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2452 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2453 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2454 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
2455 }
2456
2457 if (relpp != NULL)
2458 free (relpp);
2459 }
2460
2461 /* Write out debugging information. */
2462
2463 static bfd_boolean
2464 write_debugging_info (bfd *obfd, void *dhandle,
2465 long *symcountp ATTRIBUTE_UNUSED,
2466 asymbol ***symppp ATTRIBUTE_UNUSED)
2467 {
2468 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2469 return write_ieee_debugging_info (obfd, dhandle);
2470
2471 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2472 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2473 {
2474 bfd_byte *syms, *strings;
2475 bfd_size_type symsize, stringsize;
2476 asection *stabsec, *stabstrsec;
2477 flagword flags;
2478
2479 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2480 &symsize, &strings,
2481 &stringsize))
2482 return FALSE;
2483
2484 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2485 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2486 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
2487 if (stabsec == NULL
2488 || stabstrsec == NULL
2489 || ! bfd_set_section_size (obfd, stabsec, symsize)
2490 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2491 || ! bfd_set_section_alignment (obfd, stabsec, 2)
2492 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
2493 {
2494 non_fatal (_("%s: can't create debugging section: %s"),
2495 bfd_get_filename (obfd),
2496 bfd_errmsg (bfd_get_error ()));
2497 return FALSE;
2498 }
2499
2500 /* We can get away with setting the section contents now because
2501 the next thing the caller is going to do is copy over the
2502 real sections. We may someday have to split the contents
2503 setting out of this function. */
2504 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
2505 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
2506 stringsize))
2507 {
2508 non_fatal (_("%s: can't set debugging section contents: %s"),
2509 bfd_get_filename (obfd),
2510 bfd_errmsg (bfd_get_error ()));
2511 return FALSE;
2512 }
2513
2514 return TRUE;
2515 }
2516
2517 non_fatal (_("%s: don't know how to write debugging information for %s"),
2518 bfd_get_filename (obfd), bfd_get_target (obfd));
2519 return FALSE;
2520 }
2521
2522 static int
2523 strip_main (int argc, char *argv[])
2524 {
2525 char *input_target = NULL;
2526 char *output_target = NULL;
2527 bfd_boolean show_version = FALSE;
2528 bfd_boolean formats_info = FALSE;
2529 int c;
2530 int i;
2531 struct section_list *p;
2532 char *output_file = NULL;
2533
2534 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
2535 strip_options, (int *) 0)) != EOF)
2536 {
2537 switch (c)
2538 {
2539 case 'I':
2540 input_target = optarg;
2541 break;
2542 case 'O':
2543 output_target = optarg;
2544 break;
2545 case 'F':
2546 input_target = output_target = optarg;
2547 break;
2548 case 'R':
2549 p = find_section_list (optarg, TRUE);
2550 p->remove = TRUE;
2551 sections_removed = TRUE;
2552 break;
2553 case 's':
2554 strip_symbols = STRIP_ALL;
2555 break;
2556 case 'S':
2557 case 'g':
2558 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
2559 strip_symbols = STRIP_DEBUG;
2560 break;
2561 case OPTION_STRIP_UNNEEDED:
2562 strip_symbols = STRIP_UNNEEDED;
2563 break;
2564 case 'K':
2565 add_specific_symbol (optarg, &keep_specific_list);
2566 break;
2567 case 'N':
2568 add_specific_symbol (optarg, &strip_specific_list);
2569 break;
2570 case 'o':
2571 output_file = optarg;
2572 break;
2573 case 'p':
2574 preserve_dates = TRUE;
2575 break;
2576 case 'x':
2577 discard_locals = LOCALS_ALL;
2578 break;
2579 case 'X':
2580 discard_locals = LOCALS_START_L;
2581 break;
2582 case 'v':
2583 verbose = TRUE;
2584 break;
2585 case 'V':
2586 show_version = TRUE;
2587 break;
2588 case OPTION_FORMATS_INFO:
2589 formats_info = TRUE;
2590 break;
2591 case OPTION_ONLY_KEEP_DEBUG:
2592 strip_symbols = STRIP_NONDEBUG;
2593 break;
2594 case OPTION_KEEP_FILE_SYMBOLS:
2595 keep_file_symbols = 1;
2596 break;
2597 case 0:
2598 /* We've been given a long option. */
2599 break;
2600 case 'w':
2601 wildcard = TRUE;
2602 break;
2603 case 'H':
2604 case 'h':
2605 strip_usage (stdout, 0);
2606 default:
2607 strip_usage (stderr, 1);
2608 }
2609 }
2610
2611 if (formats_info)
2612 {
2613 display_info ();
2614 return 0;
2615 }
2616
2617 if (show_version)
2618 print_version ("strip");
2619
2620 /* Default is to strip all symbols. */
2621 if (strip_symbols == STRIP_UNDEF
2622 && discard_locals == LOCALS_UNDEF
2623 && strip_specific_list == NULL)
2624 strip_symbols = STRIP_ALL;
2625
2626 if (output_target == NULL)
2627 output_target = input_target;
2628
2629 i = optind;
2630 if (i == argc
2631 || (output_file != NULL && (i + 1) < argc))
2632 strip_usage (stderr, 1);
2633
2634 for (; i < argc; i++)
2635 {
2636 int hold_status = status;
2637 struct stat statbuf;
2638 char *tmpname;
2639
2640 if (get_file_size (argv[i]) < 1)
2641 {
2642 status = 1;
2643 continue;
2644 }
2645
2646 if (preserve_dates)
2647 /* No need to check the return value of stat().
2648 It has already been checked in get_file_size(). */
2649 stat (argv[i], &statbuf);
2650
2651 if (output_file != NULL)
2652 tmpname = output_file;
2653 else
2654 tmpname = make_tempname (argv[i]);
2655
2656 status = 0;
2657 copy_file (argv[i], tmpname, input_target, output_target);
2658 if (status == 0)
2659 {
2660 if (preserve_dates)
2661 set_times (tmpname, &statbuf);
2662 if (output_file == NULL)
2663 smart_rename (tmpname, argv[i], preserve_dates);
2664 status = hold_status;
2665 }
2666 else
2667 unlink_if_ordinary (tmpname);
2668 if (output_file == NULL)
2669 free (tmpname);
2670 }
2671
2672 return status;
2673 }
2674
2675 static int
2676 copy_main (int argc, char *argv[])
2677 {
2678 char * binary_architecture = NULL;
2679 char *input_filename = NULL;
2680 char *output_filename = NULL;
2681 char *input_target = NULL;
2682 char *output_target = NULL;
2683 bfd_boolean show_version = FALSE;
2684 bfd_boolean change_warn = TRUE;
2685 bfd_boolean formats_info = FALSE;
2686 int c;
2687 struct section_list *p;
2688 struct stat statbuf;
2689
2690 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
2691 copy_options, (int *) 0)) != EOF)
2692 {
2693 switch (c)
2694 {
2695 case 'b':
2696 copy_byte = atoi (optarg);
2697 if (copy_byte < 0)
2698 fatal (_("byte number must be non-negative"));
2699 break;
2700
2701 case 'B':
2702 binary_architecture = optarg;
2703 break;
2704
2705 case 'i':
2706 interleave = atoi (optarg);
2707 if (interleave < 1)
2708 fatal (_("interleave must be positive"));
2709 break;
2710
2711 case 'I':
2712 case 's': /* "source" - 'I' is preferred */
2713 input_target = optarg;
2714 break;
2715
2716 case 'O':
2717 case 'd': /* "destination" - 'O' is preferred */
2718 output_target = optarg;
2719 break;
2720
2721 case 'F':
2722 input_target = output_target = optarg;
2723 break;
2724
2725 case 'j':
2726 p = find_section_list (optarg, TRUE);
2727 if (p->remove)
2728 fatal (_("%s both copied and removed"), optarg);
2729 p->copy = TRUE;
2730 sections_copied = TRUE;
2731 break;
2732
2733 case 'R':
2734 p = find_section_list (optarg, TRUE);
2735 if (p->copy)
2736 fatal (_("%s both copied and removed"), optarg);
2737 p->remove = TRUE;
2738 sections_removed = TRUE;
2739 break;
2740
2741 case 'S':
2742 strip_symbols = STRIP_ALL;
2743 break;
2744
2745 case 'g':
2746 strip_symbols = STRIP_DEBUG;
2747 break;
2748
2749 case OPTION_STRIP_UNNEEDED:
2750 strip_symbols = STRIP_UNNEEDED;
2751 break;
2752
2753 case OPTION_ONLY_KEEP_DEBUG:
2754 strip_symbols = STRIP_NONDEBUG;
2755 break;
2756
2757 case OPTION_KEEP_FILE_SYMBOLS:
2758 keep_file_symbols = 1;
2759 break;
2760
2761 case OPTION_ADD_GNU_DEBUGLINK:
2762 gnu_debuglink_filename = optarg;
2763 break;
2764
2765 case 'K':
2766 add_specific_symbol (optarg, &keep_specific_list);
2767 break;
2768
2769 case 'N':
2770 add_specific_symbol (optarg, &strip_specific_list);
2771 break;
2772
2773 case OPTION_STRIP_UNNEEDED_SYMBOL:
2774 add_specific_symbol (optarg, &strip_unneeded_list);
2775 break;
2776
2777 case 'L':
2778 add_specific_symbol (optarg, &localize_specific_list);
2779 break;
2780
2781 case OPTION_GLOBALIZE_SYMBOL:
2782 add_specific_symbol (optarg, &globalize_specific_list);
2783 break;
2784
2785 case 'G':
2786 add_specific_symbol (optarg, &keepglobal_specific_list);
2787 break;
2788
2789 case 'W':
2790 add_specific_symbol (optarg, &weaken_specific_list);
2791 break;
2792
2793 case 'p':
2794 preserve_dates = TRUE;
2795 break;
2796
2797 case 'w':
2798 wildcard = TRUE;
2799 break;
2800
2801 case 'x':
2802 discard_locals = LOCALS_ALL;
2803 break;
2804
2805 case 'X':
2806 discard_locals = LOCALS_START_L;
2807 break;
2808
2809 case 'v':
2810 verbose = TRUE;
2811 break;
2812
2813 case 'V':
2814 show_version = TRUE;
2815 break;
2816
2817 case OPTION_FORMATS_INFO:
2818 formats_info = TRUE;
2819 break;
2820
2821 case OPTION_WEAKEN:
2822 weaken = TRUE;
2823 break;
2824
2825 case OPTION_ADD_SECTION:
2826 {
2827 const char *s;
2828 off_t size;
2829 struct section_add *pa;
2830 int len;
2831 char *name;
2832 FILE *f;
2833
2834 s = strchr (optarg, '=');
2835
2836 if (s == NULL)
2837 fatal (_("bad format for %s"), "--add-section");
2838
2839 size = get_file_size (s + 1);
2840 if (size < 1)
2841 {
2842 status = 1;
2843 break;
2844 }
2845
2846 pa = xmalloc (sizeof (struct section_add));
2847
2848 len = s - optarg;
2849 name = xmalloc (len + 1);
2850 strncpy (name, optarg, len);
2851 name[len] = '\0';
2852 pa->name = name;
2853
2854 pa->filename = s + 1;
2855 pa->size = size;
2856 pa->contents = xmalloc (size);
2857
2858 f = fopen (pa->filename, FOPEN_RB);
2859
2860 if (f == NULL)
2861 fatal (_("cannot open: %s: %s"),
2862 pa->filename, strerror (errno));
2863
2864 if (fread (pa->contents, 1, pa->size, f) == 0
2865 || ferror (f))
2866 fatal (_("%s: fread failed"), pa->filename);
2867
2868 fclose (f);
2869
2870 pa->next = add_sections;
2871 add_sections = pa;
2872 }
2873 break;
2874
2875 case OPTION_CHANGE_START:
2876 change_start = parse_vma (optarg, "--change-start");
2877 break;
2878
2879 case OPTION_CHANGE_SECTION_ADDRESS:
2880 case OPTION_CHANGE_SECTION_LMA:
2881 case OPTION_CHANGE_SECTION_VMA:
2882 {
2883 const char *s;
2884 int len;
2885 char *name;
2886 char *option = NULL;
2887 bfd_vma val;
2888 enum change_action what = CHANGE_IGNORE;
2889
2890 switch (c)
2891 {
2892 case OPTION_CHANGE_SECTION_ADDRESS:
2893 option = "--change-section-address";
2894 break;
2895 case OPTION_CHANGE_SECTION_LMA:
2896 option = "--change-section-lma";
2897 break;
2898 case OPTION_CHANGE_SECTION_VMA:
2899 option = "--change-section-vma";
2900 break;
2901 }
2902
2903 s = strchr (optarg, '=');
2904 if (s == NULL)
2905 {
2906 s = strchr (optarg, '+');
2907 if (s == NULL)
2908 {
2909 s = strchr (optarg, '-');
2910 if (s == NULL)
2911 fatal (_("bad format for %s"), option);
2912 }
2913 }
2914
2915 len = s - optarg;
2916 name = xmalloc (len + 1);
2917 strncpy (name, optarg, len);
2918 name[len] = '\0';
2919
2920 p = find_section_list (name, TRUE);
2921
2922 val = parse_vma (s + 1, option);
2923
2924 switch (*s)
2925 {
2926 case '=': what = CHANGE_SET; break;
2927 case '-': val = - val; /* Drop through. */
2928 case '+': what = CHANGE_MODIFY; break;
2929 }
2930
2931 switch (c)
2932 {
2933 case OPTION_CHANGE_SECTION_ADDRESS:
2934 p->change_vma = what;
2935 p->vma_val = val;
2936 /* Drop through. */
2937
2938 case OPTION_CHANGE_SECTION_LMA:
2939 p->change_lma = what;
2940 p->lma_val = val;
2941 break;
2942
2943 case OPTION_CHANGE_SECTION_VMA:
2944 p->change_vma = what;
2945 p->vma_val = val;
2946 break;
2947 }
2948 }
2949 break;
2950
2951 case OPTION_CHANGE_ADDRESSES:
2952 change_section_address = parse_vma (optarg, "--change-addresses");
2953 change_start = change_section_address;
2954 break;
2955
2956 case OPTION_CHANGE_WARNINGS:
2957 change_warn = TRUE;
2958 break;
2959
2960 case OPTION_CHANGE_LEADING_CHAR:
2961 change_leading_char = TRUE;
2962 break;
2963
2964 case OPTION_DEBUGGING:
2965 convert_debugging = TRUE;
2966 break;
2967
2968 case OPTION_GAP_FILL:
2969 {
2970 bfd_vma gap_fill_vma;
2971
2972 gap_fill_vma = parse_vma (optarg, "--gap-fill");
2973 gap_fill = (bfd_byte) gap_fill_vma;
2974 if ((bfd_vma) gap_fill != gap_fill_vma)
2975 {
2976 char buff[20];
2977
2978 sprintf_vma (buff, gap_fill_vma);
2979
2980 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
2981 buff, gap_fill);
2982 }
2983 gap_fill_set = TRUE;
2984 }
2985 break;
2986
2987 case OPTION_NO_CHANGE_WARNINGS:
2988 change_warn = FALSE;
2989 break;
2990
2991 case OPTION_PAD_TO:
2992 pad_to = parse_vma (optarg, "--pad-to");
2993 pad_to_set = TRUE;
2994 break;
2995
2996 case OPTION_REMOVE_LEADING_CHAR:
2997 remove_leading_char = TRUE;
2998 break;
2999
3000 case OPTION_REDEFINE_SYM:
3001 {
3002 /* Push this redefinition onto redefine_symbol_list. */
3003
3004 int len;
3005 const char *s;
3006 const char *nextarg;
3007 char *source, *target;
3008
3009 s = strchr (optarg, '=');
3010 if (s == NULL)
3011 fatal (_("bad format for %s"), "--redefine-sym");
3012
3013 len = s - optarg;
3014 source = xmalloc (len + 1);
3015 strncpy (source, optarg, len);
3016 source[len] = '\0';
3017
3018 nextarg = s + 1;
3019 len = strlen (nextarg);
3020 target = xmalloc (len + 1);
3021 strcpy (target, nextarg);
3022
3023 redefine_list_append ("--redefine-sym", source, target);
3024
3025 free (source);
3026 free (target);
3027 }
3028 break;
3029
3030 case OPTION_REDEFINE_SYMS:
3031 add_redefine_syms_file (optarg);
3032 break;
3033
3034 case OPTION_SET_SECTION_FLAGS:
3035 {
3036 const char *s;
3037 int len;
3038 char *name;
3039
3040 s = strchr (optarg, '=');
3041 if (s == NULL)
3042 fatal (_("bad format for %s"), "--set-section-flags");
3043
3044 len = s - optarg;
3045 name = xmalloc (len + 1);
3046 strncpy (name, optarg, len);
3047 name[len] = '\0';
3048
3049 p = find_section_list (name, TRUE);
3050
3051 p->set_flags = TRUE;
3052 p->flags = parse_flags (s + 1);
3053 }
3054 break;
3055
3056 case OPTION_RENAME_SECTION:
3057 {
3058 flagword flags;
3059 const char *eq, *fl;
3060 char *old_name;
3061 char *new_name;
3062 unsigned int len;
3063
3064 eq = strchr (optarg, '=');
3065 if (eq == NULL)
3066 fatal (_("bad format for %s"), "--rename-section");
3067
3068 len = eq - optarg;
3069 if (len == 0)
3070 fatal (_("bad format for %s"), "--rename-section");
3071
3072 old_name = xmalloc (len + 1);
3073 strncpy (old_name, optarg, len);
3074 old_name[len] = 0;
3075
3076 eq++;
3077 fl = strchr (eq, ',');
3078 if (fl)
3079 {
3080 flags = parse_flags (fl + 1);
3081 len = fl - eq;
3082 }
3083 else
3084 {
3085 flags = -1;
3086 len = strlen (eq);
3087 }
3088
3089 if (len == 0)
3090 fatal (_("bad format for %s"), "--rename-section");
3091
3092 new_name = xmalloc (len + 1);
3093 strncpy (new_name, eq, len);
3094 new_name[len] = 0;
3095
3096 add_section_rename (old_name, new_name, flags);
3097 }
3098 break;
3099
3100 case OPTION_SET_START:
3101 set_start = parse_vma (optarg, "--set-start");
3102 set_start_set = TRUE;
3103 break;
3104
3105 case OPTION_SREC_LEN:
3106 Chunk = parse_vma (optarg, "--srec-len");
3107 break;
3108
3109 case OPTION_SREC_FORCES3:
3110 S3Forced = TRUE;
3111 break;
3112
3113 case OPTION_STRIP_SYMBOLS:
3114 add_specific_symbols (optarg, &strip_specific_list);
3115 break;
3116
3117 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3118 add_specific_symbols (optarg, &strip_unneeded_list);
3119 break;
3120
3121 case OPTION_KEEP_SYMBOLS:
3122 add_specific_symbols (optarg, &keep_specific_list);
3123 break;
3124
3125 case OPTION_LOCALIZE_HIDDEN:
3126 localize_hidden = TRUE;
3127 break;
3128
3129 case OPTION_LOCALIZE_SYMBOLS:
3130 add_specific_symbols (optarg, &localize_specific_list);
3131 break;
3132
3133 case OPTION_GLOBALIZE_SYMBOLS:
3134 add_specific_symbols (optarg, &globalize_specific_list);
3135 break;
3136
3137 case OPTION_KEEPGLOBAL_SYMBOLS:
3138 add_specific_symbols (optarg, &keepglobal_specific_list);
3139 break;
3140
3141 case OPTION_WEAKEN_SYMBOLS:
3142 add_specific_symbols (optarg, &weaken_specific_list);
3143 break;
3144
3145 case OPTION_ALT_MACH_CODE:
3146 use_alt_mach_code = strtoul (optarg, NULL, 0);
3147 if (use_alt_mach_code == 0)
3148 fatal (_("unable to parse alternative machine code"));
3149 break;
3150
3151 case OPTION_PREFIX_SYMBOLS:
3152 prefix_symbols_string = optarg;
3153 break;
3154
3155 case OPTION_PREFIX_SECTIONS:
3156 prefix_sections_string = optarg;
3157 break;
3158
3159 case OPTION_PREFIX_ALLOC_SECTIONS:
3160 prefix_alloc_sections_string = optarg;
3161 break;
3162
3163 case OPTION_READONLY_TEXT:
3164 bfd_flags_to_set |= WP_TEXT;
3165 bfd_flags_to_clear &= ~WP_TEXT;
3166 break;
3167
3168 case OPTION_WRITABLE_TEXT:
3169 bfd_flags_to_clear |= WP_TEXT;
3170 bfd_flags_to_set &= ~WP_TEXT;
3171 break;
3172
3173 case OPTION_PURE:
3174 bfd_flags_to_set |= D_PAGED;
3175 bfd_flags_to_clear &= ~D_PAGED;
3176 break;
3177
3178 case OPTION_IMPURE:
3179 bfd_flags_to_clear |= D_PAGED;
3180 bfd_flags_to_set &= ~D_PAGED;
3181 break;
3182
3183 case 0:
3184 /* We've been given a long option. */
3185 break;
3186
3187 case 'H':
3188 case 'h':
3189 copy_usage (stdout, 0);
3190
3191 default:
3192 copy_usage (stderr, 1);
3193 }
3194 }
3195
3196 if (formats_info)
3197 {
3198 display_info ();
3199 return 0;
3200 }
3201
3202 if (show_version)
3203 print_version ("objcopy");
3204
3205 if (copy_byte >= interleave)
3206 fatal (_("byte number must be less than interleave"));
3207
3208 if (optind == argc || optind + 2 < argc)
3209 copy_usage (stderr, 1);
3210
3211 input_filename = argv[optind];
3212 if (optind + 1 < argc)
3213 output_filename = argv[optind + 1];
3214
3215 /* Default is to strip no symbols. */
3216 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3217 strip_symbols = STRIP_NONE;
3218
3219 if (output_target == NULL)
3220 output_target = input_target;
3221
3222 if (binary_architecture != NULL)
3223 {
3224 if (input_target && strcmp (input_target, "binary") == 0)
3225 {
3226 const bfd_arch_info_type * temp_arch_info;
3227
3228 temp_arch_info = bfd_scan_arch (binary_architecture);
3229
3230 if (temp_arch_info != NULL)
3231 {
3232 bfd_external_binary_architecture = temp_arch_info->arch;
3233 bfd_external_machine = temp_arch_info->mach;
3234 }
3235 else
3236 fatal (_("architecture %s unknown"), binary_architecture);
3237 }
3238 else
3239 {
3240 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
3241 non_fatal (_(" Argument %s ignored"), binary_architecture);
3242 }
3243 }
3244
3245 if (preserve_dates)
3246 if (stat (input_filename, & statbuf) < 0)
3247 fatal (_("warning: could not locate '%s'. System error message: %s"),
3248 input_filename, strerror (errno));
3249
3250 /* If there is no destination file, or the source and destination files
3251 are the same, then create a temp and rename the result into the input. */
3252 if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
3253 {
3254 char *tmpname = make_tempname (input_filename);
3255
3256 copy_file (input_filename, tmpname, input_target, output_target);
3257 if (status == 0)
3258 {
3259 if (preserve_dates)
3260 set_times (tmpname, &statbuf);
3261 smart_rename (tmpname, input_filename, preserve_dates);
3262 }
3263 else
3264 unlink (tmpname);
3265 }
3266 else
3267 {
3268 copy_file (input_filename, output_filename, input_target, output_target);
3269
3270 if (status == 0 && preserve_dates)
3271 set_times (output_filename, &statbuf);
3272 else if (status != 0)
3273 unlink_if_ordinary (output_filename);
3274 }
3275
3276 if (change_warn)
3277 {
3278 for (p = change_sections; p != NULL; p = p->next)
3279 {
3280 if (! p->used)
3281 {
3282 if (p->change_vma != CHANGE_IGNORE)
3283 {
3284 char buff [20];
3285
3286 sprintf_vma (buff, p->vma_val);
3287
3288 /* xgettext:c-format */
3289 non_fatal (_("%s %s%c0x%s never used"),
3290 "--change-section-vma",
3291 p->name,
3292 p->change_vma == CHANGE_SET ? '=' : '+',
3293 buff);
3294 }
3295
3296 if (p->change_lma != CHANGE_IGNORE)
3297 {
3298 char buff [20];
3299
3300 sprintf_vma (buff, p->lma_val);
3301
3302 /* xgettext:c-format */
3303 non_fatal (_("%s %s%c0x%s never used"),
3304 "--change-section-lma",
3305 p->name,
3306 p->change_lma == CHANGE_SET ? '=' : '+',
3307 buff);
3308 }
3309 }
3310 }
3311 }
3312
3313 return 0;
3314 }
3315
3316 int
3317 main (int argc, char *argv[])
3318 {
3319 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3320 setlocale (LC_MESSAGES, "");
3321 #endif
3322 #if defined (HAVE_SETLOCALE)
3323 setlocale (LC_CTYPE, "");
3324 #endif
3325 bindtextdomain (PACKAGE, LOCALEDIR);
3326 textdomain (PACKAGE);
3327
3328 program_name = argv[0];
3329 xmalloc_set_program_name (program_name);
3330
3331 START_PROGRESS (program_name, 0);
3332
3333 expandargv (&argc, &argv);
3334
3335 strip_symbols = STRIP_UNDEF;
3336 discard_locals = LOCALS_UNDEF;
3337
3338 bfd_init ();
3339 set_default_bfd_target ();
3340
3341 if (is_strip < 0)
3342 {
3343 int i = strlen (program_name);
3344 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3345 /* Drop the .exe suffix, if any. */
3346 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
3347 {
3348 i -= 4;
3349 program_name[i] = '\0';
3350 }
3351 #endif
3352 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
3353 }
3354
3355 if (is_strip)
3356 strip_main (argc, argv);
3357 else
3358 copy_main (argc, argv);
3359
3360 END_PROGRESS (program_name);
3361
3362 return status;
3363 }
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