PR binutils/3166
[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
1735 static void
1736 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target)
1737 {
1738 struct name_list
1739 {
1740 struct name_list *next;
1741 const char *name;
1742 bfd *obfd;
1743 } *list, *l;
1744 bfd **ptr = &obfd->archive_head;
1745 bfd *this_element;
1746 char *dir = make_tempname (bfd_get_filename (obfd));
1747
1748 /* Make a temp directory to hold the contents. */
1749 if (MKDIR (dir, 0700) != 0)
1750 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1751 dir, strerror (errno));
1752
1753 obfd->has_armap = ibfd->has_armap;
1754
1755 list = NULL;
1756
1757 this_element = bfd_openr_next_archived_file (ibfd, NULL);
1758
1759 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1760 RETURN_NONFATAL (bfd_get_filename (obfd));
1761
1762 while (!status && this_element != NULL)
1763 {
1764 char *output_name;
1765 bfd *output_bfd;
1766 bfd *last_element;
1767 struct stat buf;
1768 int stat_status = 0;
1769 bfd_boolean delete = TRUE;
1770
1771 /* Create an output file for this member. */
1772 output_name = concat (dir, "/",
1773 bfd_get_filename (this_element), (char *) 0);
1774
1775 /* If the file already exists, make another temp dir. */
1776 if (stat (output_name, &buf) >= 0)
1777 {
1778 output_name = make_tempname (output_name);
1779 if (MKDIR (output_name, 0700) != 0)
1780 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1781 output_name, strerror (errno));
1782
1783 l = xmalloc (sizeof (struct name_list));
1784 l->name = output_name;
1785 l->next = list;
1786 l->obfd = NULL;
1787 list = l;
1788 output_name = concat (output_name, "/",
1789 bfd_get_filename (this_element), (char *) 0);
1790 }
1791
1792 output_bfd = bfd_openw (output_name, output_target);
1793 if (preserve_dates)
1794 {
1795 stat_status = bfd_stat_arch_elt (this_element, &buf);
1796
1797 if (stat_status != 0)
1798 non_fatal (_("internal stat error on %s"),
1799 bfd_get_filename (this_element));
1800 }
1801
1802 l = xmalloc (sizeof (struct name_list));
1803 l->name = output_name;
1804 l->next = list;
1805 l->obfd = NULL;
1806 list = l;
1807
1808 if (output_bfd == NULL)
1809 RETURN_NONFATAL (output_name);
1810
1811 if (bfd_check_format (this_element, bfd_object))
1812 {
1813 delete = ! copy_object (this_element, output_bfd);
1814
1815 if (! delete
1816 || bfd_get_arch (this_element) != bfd_arch_unknown)
1817 {
1818 if (!bfd_close (output_bfd))
1819 {
1820 bfd_nonfatal (bfd_get_filename (output_bfd));
1821 /* Error in new object file. Don't change archive. */
1822 status = 1;
1823 }
1824 }
1825 else
1826 goto copy_unknown_element;
1827 }
1828 else
1829 {
1830 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1831 bfd_get_archive_filename (this_element));
1832
1833 copy_unknown_element:
1834 delete = !copy_unknown_object (this_element, output_bfd);
1835 if (!bfd_close_all_done (output_bfd))
1836 {
1837 bfd_nonfatal (bfd_get_filename (output_bfd));
1838 /* Error in new object file. Don't change archive. */
1839 status = 1;
1840 }
1841 }
1842
1843 if (delete)
1844 {
1845 unlink (output_name);
1846 status = 1;
1847 }
1848 else
1849 {
1850 if (preserve_dates && stat_status == 0)
1851 set_times (output_name, &buf);
1852
1853 /* Open the newly output file and attach to our list. */
1854 output_bfd = bfd_openr (output_name, output_target);
1855
1856 l->obfd = output_bfd;
1857
1858 *ptr = output_bfd;
1859 ptr = &output_bfd->next;
1860
1861 last_element = this_element;
1862
1863 this_element = bfd_openr_next_archived_file (ibfd, last_element);
1864
1865 bfd_close (last_element);
1866 }
1867 }
1868 *ptr = NULL;
1869
1870 if (!bfd_close (obfd))
1871 RETURN_NONFATAL (bfd_get_filename (obfd));
1872
1873 if (!bfd_close (ibfd))
1874 RETURN_NONFATAL (bfd_get_filename (ibfd));
1875
1876 /* Delete all the files that we opened. */
1877 for (l = list; l != NULL; l = l->next)
1878 {
1879 if (l->obfd == NULL)
1880 rmdir (l->name);
1881 else
1882 {
1883 bfd_close (l->obfd);
1884 unlink (l->name);
1885 }
1886 }
1887 rmdir (dir);
1888 }
1889
1890 /* The top-level control. */
1891
1892 static void
1893 copy_file (const char *input_filename, const char *output_filename,
1894 const char *input_target, const char *output_target)
1895 {
1896 bfd *ibfd;
1897 char **obj_matching;
1898 char **core_matching;
1899
1900 if (get_file_size (input_filename) < 1)
1901 {
1902 status = 1;
1903 return;
1904 }
1905
1906 /* To allow us to do "strip *" without dying on the first
1907 non-object file, failures are nonfatal. */
1908 ibfd = bfd_openr (input_filename, input_target);
1909 if (ibfd == NULL)
1910 RETURN_NONFATAL (input_filename);
1911
1912 if (bfd_check_format (ibfd, bfd_archive))
1913 {
1914 bfd *obfd;
1915
1916 /* bfd_get_target does not return the correct value until
1917 bfd_check_format succeeds. */
1918 if (output_target == NULL)
1919 output_target = bfd_get_target (ibfd);
1920
1921 obfd = bfd_openw (output_filename, output_target);
1922 if (obfd == NULL)
1923 RETURN_NONFATAL (output_filename);
1924
1925 copy_archive (ibfd, obfd, output_target);
1926 }
1927 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
1928 {
1929 bfd *obfd;
1930 do_copy:
1931
1932 /* bfd_get_target does not return the correct value until
1933 bfd_check_format succeeds. */
1934 if (output_target == NULL)
1935 output_target = bfd_get_target (ibfd);
1936
1937 obfd = bfd_openw (output_filename, output_target);
1938 if (obfd == NULL)
1939 RETURN_NONFATAL (output_filename);
1940
1941 if (! copy_object (ibfd, obfd))
1942 status = 1;
1943
1944 if (!bfd_close (obfd))
1945 RETURN_NONFATAL (output_filename);
1946
1947 if (!bfd_close (ibfd))
1948 RETURN_NONFATAL (input_filename);
1949
1950 }
1951 else
1952 {
1953 bfd_error_type obj_error = bfd_get_error ();
1954 bfd_error_type core_error;
1955
1956 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
1957 {
1958 /* This probably can't happen.. */
1959 if (obj_error == bfd_error_file_ambiguously_recognized)
1960 free (obj_matching);
1961 goto do_copy;
1962 }
1963
1964 core_error = bfd_get_error ();
1965 /* Report the object error in preference to the core error. */
1966 if (obj_error != core_error)
1967 bfd_set_error (obj_error);
1968
1969 bfd_nonfatal (input_filename);
1970
1971 if (obj_error == bfd_error_file_ambiguously_recognized)
1972 {
1973 list_matching_formats (obj_matching);
1974 free (obj_matching);
1975 }
1976 if (core_error == bfd_error_file_ambiguously_recognized)
1977 {
1978 list_matching_formats (core_matching);
1979 free (core_matching);
1980 }
1981
1982 status = 1;
1983 }
1984 }
1985
1986 /* Add a name to the section renaming list. */
1987
1988 static void
1989 add_section_rename (const char * old_name, const char * new_name,
1990 flagword flags)
1991 {
1992 section_rename * rename;
1993
1994 /* Check for conflicts first. */
1995 for (rename = section_rename_list; rename != NULL; rename = rename->next)
1996 if (strcmp (rename->old_name, old_name) == 0)
1997 {
1998 /* Silently ignore duplicate definitions. */
1999 if (strcmp (rename->new_name, new_name) == 0
2000 && rename->flags == flags)
2001 return;
2002
2003 fatal (_("Multiple renames of section %s"), old_name);
2004 }
2005
2006 rename = xmalloc (sizeof (* rename));
2007
2008 rename->old_name = old_name;
2009 rename->new_name = new_name;
2010 rename->flags = flags;
2011 rename->next = section_rename_list;
2012
2013 section_rename_list = rename;
2014 }
2015
2016 /* Check the section rename list for a new name of the input section
2017 ISECTION. Return the new name if one is found.
2018 Also set RETURNED_FLAGS to the flags to be used for this section. */
2019
2020 static const char *
2021 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2022 flagword * returned_flags)
2023 {
2024 const char * old_name = bfd_section_name (ibfd, isection);
2025 section_rename * rename;
2026
2027 /* Default to using the flags of the input section. */
2028 * returned_flags = bfd_get_section_flags (ibfd, isection);
2029
2030 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2031 if (strcmp (rename->old_name, old_name) == 0)
2032 {
2033 if (rename->flags != (flagword) -1)
2034 * returned_flags = rename->flags;
2035
2036 return rename->new_name;
2037 }
2038
2039 return old_name;
2040 }
2041
2042 /* Once each of the sections is copied, we may still need to do some
2043 finalization work for private section headers. Do that here. */
2044
2045 static void
2046 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2047 {
2048 const char *err;
2049
2050 /* Allow the BFD backend to copy any private data it understands
2051 from the input section to the output section. */
2052 if (! bfd_copy_private_header_data (ibfd, obfd))
2053 {
2054 err = _("private header data");
2055 goto loser;
2056 }
2057
2058 /* All went well. */
2059 return;
2060
2061 loser:
2062 non_fatal (_("%s: error in %s: %s"),
2063 bfd_get_filename (ibfd),
2064 err, bfd_errmsg (bfd_get_error ()));
2065 status = 1;
2066 }
2067
2068 /* Create a section in OBFD with the same
2069 name and attributes as ISECTION in IBFD. */
2070
2071 static void
2072 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2073 {
2074 bfd *obfd = obfdarg;
2075 struct section_list *p;
2076 sec_ptr osection;
2077 bfd_size_type size;
2078 bfd_vma vma;
2079 bfd_vma lma;
2080 flagword flags;
2081 const char *err;
2082 const char * name;
2083 char *prefix = NULL;
2084
2085 if (is_strip_section (ibfd, isection))
2086 return;
2087
2088 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
2089 if (p != NULL)
2090 p->used = TRUE;
2091
2092 /* Get the, possibly new, name of the output section. */
2093 name = find_section_rename (ibfd, isection, & flags);
2094
2095 /* Prefix sections. */
2096 if ((prefix_alloc_sections_string)
2097 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2098 prefix = prefix_alloc_sections_string;
2099 else if (prefix_sections_string)
2100 prefix = prefix_sections_string;
2101
2102 if (prefix)
2103 {
2104 char *n;
2105
2106 n = xmalloc (strlen (prefix) + strlen (name) + 1);
2107 strcpy (n, prefix);
2108 strcat (n, name);
2109 name = n;
2110 }
2111
2112 if (p != NULL && p->set_flags)
2113 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2114 else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0)
2115 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
2116
2117 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2118
2119 if (osection == NULL)
2120 {
2121 err = _("making");
2122 goto loser;
2123 }
2124
2125 if (strip_symbols == STRIP_NONDEBUG
2126 && obfd->xvec->flavour == bfd_target_elf_flavour
2127 && (flags & SEC_ALLOC) != 0
2128 && (p == NULL || !p->set_flags))
2129 elf_section_type (osection) = SHT_NOBITS;
2130
2131 size = bfd_section_size (ibfd, isection);
2132 if (copy_byte >= 0)
2133 size = (size + interleave - 1) / interleave;
2134 if (! bfd_set_section_size (obfd, osection, size))
2135 {
2136 err = _("size");
2137 goto loser;
2138 }
2139
2140 vma = bfd_section_vma (ibfd, isection);
2141 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2142 vma += p->vma_val;
2143 else if (p != NULL && p->change_vma == CHANGE_SET)
2144 vma = p->vma_val;
2145 else
2146 vma += change_section_address;
2147
2148 if (! bfd_set_section_vma (obfd, osection, vma))
2149 {
2150 err = _("vma");
2151 goto loser;
2152 }
2153
2154 lma = isection->lma;
2155 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2156 {
2157 if (p->change_lma == CHANGE_MODIFY)
2158 lma += p->lma_val;
2159 else if (p->change_lma == CHANGE_SET)
2160 lma = p->lma_val;
2161 else
2162 abort ();
2163 }
2164 else
2165 lma += change_section_address;
2166
2167 osection->lma = lma;
2168
2169 /* FIXME: This is probably not enough. If we change the LMA we
2170 may have to recompute the header for the file as well. */
2171 if (!bfd_set_section_alignment (obfd,
2172 osection,
2173 bfd_section_alignment (ibfd, isection)))
2174 {
2175 err = _("alignment");
2176 goto loser;
2177 }
2178
2179 /* Copy merge entity size. */
2180 osection->entsize = isection->entsize;
2181
2182 /* This used to be mangle_section; we do here to avoid using
2183 bfd_get_section_by_name since some formats allow multiple
2184 sections with the same name. */
2185 isection->output_section = osection;
2186 isection->output_offset = 0;
2187
2188 /* Allow the BFD backend to copy any private data it understands
2189 from the input section to the output section. */
2190 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
2191 && strip_symbols == STRIP_NONDEBUG)
2192 /* Do not copy the private data when creating an ELF format
2193 debug info file. We do not want the program headers. */
2194 ;
2195 else if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2196 {
2197 err = _("private data");
2198 goto loser;
2199 }
2200
2201 /* All went well. */
2202 return;
2203
2204 loser:
2205 non_fatal (_("%s: section `%s': error in %s: %s"),
2206 bfd_get_filename (ibfd),
2207 bfd_section_name (ibfd, isection),
2208 err, bfd_errmsg (bfd_get_error ()));
2209 status = 1;
2210 }
2211
2212 /* Copy the data of input section ISECTION of IBFD
2213 to an output section with the same name in OBFD.
2214 If stripping then don't copy any relocation info. */
2215
2216 static void
2217 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2218 {
2219 bfd *obfd = obfdarg;
2220 struct section_list *p;
2221 arelent **relpp;
2222 long relcount;
2223 sec_ptr osection;
2224 bfd_size_type size;
2225 long relsize;
2226 flagword flags;
2227
2228 /* If we have already failed earlier on,
2229 do not keep on generating complaints now. */
2230 if (status != 0)
2231 return;
2232
2233 if (is_strip_section (ibfd, isection))
2234 return;
2235
2236 flags = bfd_get_section_flags (ibfd, isection);
2237 if ((flags & SEC_GROUP) != 0)
2238 return;
2239
2240 osection = isection->output_section;
2241 size = bfd_get_section_size (isection);
2242
2243 if (size == 0 || osection == 0)
2244 return;
2245
2246 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2247
2248 /* Core files do not need to be relocated. */
2249 if (bfd_get_format (obfd) == bfd_core)
2250 relsize = 0;
2251 else
2252 {
2253 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2254
2255 if (relsize < 0)
2256 {
2257 /* Do not complain if the target does not support relocations. */
2258 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2259 relsize = 0;
2260 else
2261 RETURN_NONFATAL (bfd_get_filename (ibfd));
2262 }
2263 }
2264
2265 if (relsize == 0)
2266 bfd_set_reloc (obfd, osection, NULL, 0);
2267 else
2268 {
2269 relpp = xmalloc (relsize);
2270 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2271 if (relcount < 0)
2272 RETURN_NONFATAL (bfd_get_filename (ibfd));
2273
2274 if (strip_symbols == STRIP_ALL)
2275 {
2276 /* Remove relocations which are not in
2277 keep_strip_specific_list. */
2278 arelent **temp_relpp;
2279 long temp_relcount = 0;
2280 long i;
2281
2282 temp_relpp = xmalloc (relsize);
2283 for (i = 0; i < relcount; i++)
2284 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2285 keep_specific_list))
2286 temp_relpp [temp_relcount++] = relpp [i];
2287 relcount = temp_relcount;
2288 free (relpp);
2289 relpp = temp_relpp;
2290 }
2291
2292 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2293 if (relcount == 0)
2294 free (relpp);
2295 }
2296
2297 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2298 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2299 {
2300 void *memhunk = xmalloc (size);
2301
2302 if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
2303 RETURN_NONFATAL (bfd_get_filename (ibfd));
2304
2305 if (copy_byte >= 0)
2306 {
2307 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2308 char *from = (char *) memhunk + copy_byte;
2309 char *to = memhunk;
2310 char *end = (char *) memhunk + size;
2311
2312 for (; from < end; from += interleave)
2313 *to++ = *from;
2314
2315 size = (size + interleave - 1 - copy_byte) / interleave;
2316 osection->lma /= interleave;
2317 }
2318
2319 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2320 RETURN_NONFATAL (bfd_get_filename (obfd));
2321
2322 free (memhunk);
2323 }
2324 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2325 {
2326 void *memhunk = xmalloc (size);
2327
2328 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2329 flag--they can just remove the section entirely and add it
2330 back again. However, we do permit them to turn on the
2331 SEC_HAS_CONTENTS flag, and take it to mean that the section
2332 contents should be zeroed out. */
2333
2334 memset (memhunk, 0, size);
2335 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2336 RETURN_NONFATAL (bfd_get_filename (obfd));
2337 free (memhunk);
2338 }
2339 }
2340
2341 /* Get all the sections. This is used when --gap-fill or --pad-to is
2342 used. */
2343
2344 static void
2345 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
2346 {
2347 asection ***secppp = secppparg;
2348
2349 **secppp = osection;
2350 ++(*secppp);
2351 }
2352
2353 /* Sort sections by VMA. This is called via qsort, and is used when
2354 --gap-fill or --pad-to is used. We force non loadable or empty
2355 sections to the front, where they are easier to ignore. */
2356
2357 static int
2358 compare_section_lma (const void *arg1, const void *arg2)
2359 {
2360 const asection *const *sec1 = arg1;
2361 const asection *const *sec2 = arg2;
2362 flagword flags1, flags2;
2363
2364 /* Sort non loadable sections to the front. */
2365 flags1 = (*sec1)->flags;
2366 flags2 = (*sec2)->flags;
2367 if ((flags1 & SEC_HAS_CONTENTS) == 0
2368 || (flags1 & SEC_LOAD) == 0)
2369 {
2370 if ((flags2 & SEC_HAS_CONTENTS) != 0
2371 && (flags2 & SEC_LOAD) != 0)
2372 return -1;
2373 }
2374 else
2375 {
2376 if ((flags2 & SEC_HAS_CONTENTS) == 0
2377 || (flags2 & SEC_LOAD) == 0)
2378 return 1;
2379 }
2380
2381 /* Sort sections by LMA. */
2382 if ((*sec1)->lma > (*sec2)->lma)
2383 return 1;
2384 else if ((*sec1)->lma < (*sec2)->lma)
2385 return -1;
2386
2387 /* Sort sections with the same LMA by size. */
2388 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
2389 return 1;
2390 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
2391 return -1;
2392
2393 return 0;
2394 }
2395
2396 /* Mark all the symbols which will be used in output relocations with
2397 the BSF_KEEP flag so that those symbols will not be stripped.
2398
2399 Ignore relocations which will not appear in the output file. */
2400
2401 static void
2402 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
2403 {
2404 asymbol **symbols = symbolsarg;
2405 long relsize;
2406 arelent **relpp;
2407 long relcount, i;
2408
2409 /* Ignore an input section with no corresponding output section. */
2410 if (isection->output_section == NULL)
2411 return;
2412
2413 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2414 if (relsize < 0)
2415 {
2416 /* Do not complain if the target does not support relocations. */
2417 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2418 return;
2419 bfd_fatal (bfd_get_filename (ibfd));
2420 }
2421
2422 if (relsize == 0)
2423 return;
2424
2425 relpp = xmalloc (relsize);
2426 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2427 if (relcount < 0)
2428 bfd_fatal (bfd_get_filename (ibfd));
2429
2430 /* Examine each symbol used in a relocation. If it's not one of the
2431 special bfd section symbols, then mark it with BSF_KEEP. */
2432 for (i = 0; i < relcount; i++)
2433 {
2434 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2435 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2436 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2437 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
2438 }
2439
2440 if (relpp != NULL)
2441 free (relpp);
2442 }
2443
2444 /* Write out debugging information. */
2445
2446 static bfd_boolean
2447 write_debugging_info (bfd *obfd, void *dhandle,
2448 long *symcountp ATTRIBUTE_UNUSED,
2449 asymbol ***symppp ATTRIBUTE_UNUSED)
2450 {
2451 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2452 return write_ieee_debugging_info (obfd, dhandle);
2453
2454 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2455 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2456 {
2457 bfd_byte *syms, *strings;
2458 bfd_size_type symsize, stringsize;
2459 asection *stabsec, *stabstrsec;
2460 flagword flags;
2461
2462 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2463 &symsize, &strings,
2464 &stringsize))
2465 return FALSE;
2466
2467 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2468 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2469 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
2470 if (stabsec == NULL
2471 || stabstrsec == NULL
2472 || ! bfd_set_section_size (obfd, stabsec, symsize)
2473 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2474 || ! bfd_set_section_alignment (obfd, stabsec, 2)
2475 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
2476 {
2477 non_fatal (_("%s: can't create debugging section: %s"),
2478 bfd_get_filename (obfd),
2479 bfd_errmsg (bfd_get_error ()));
2480 return FALSE;
2481 }
2482
2483 /* We can get away with setting the section contents now because
2484 the next thing the caller is going to do is copy over the
2485 real sections. We may someday have to split the contents
2486 setting out of this function. */
2487 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
2488 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
2489 stringsize))
2490 {
2491 non_fatal (_("%s: can't set debugging section contents: %s"),
2492 bfd_get_filename (obfd),
2493 bfd_errmsg (bfd_get_error ()));
2494 return FALSE;
2495 }
2496
2497 return TRUE;
2498 }
2499
2500 non_fatal (_("%s: don't know how to write debugging information for %s"),
2501 bfd_get_filename (obfd), bfd_get_target (obfd));
2502 return FALSE;
2503 }
2504
2505 static int
2506 strip_main (int argc, char *argv[])
2507 {
2508 char *input_target = NULL;
2509 char *output_target = NULL;
2510 bfd_boolean show_version = FALSE;
2511 bfd_boolean formats_info = FALSE;
2512 int c;
2513 int i;
2514 struct section_list *p;
2515 char *output_file = NULL;
2516
2517 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
2518 strip_options, (int *) 0)) != EOF)
2519 {
2520 switch (c)
2521 {
2522 case 'I':
2523 input_target = optarg;
2524 break;
2525 case 'O':
2526 output_target = optarg;
2527 break;
2528 case 'F':
2529 input_target = output_target = optarg;
2530 break;
2531 case 'R':
2532 p = find_section_list (optarg, TRUE);
2533 p->remove = TRUE;
2534 sections_removed = TRUE;
2535 break;
2536 case 's':
2537 strip_symbols = STRIP_ALL;
2538 break;
2539 case 'S':
2540 case 'g':
2541 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
2542 strip_symbols = STRIP_DEBUG;
2543 break;
2544 case OPTION_STRIP_UNNEEDED:
2545 strip_symbols = STRIP_UNNEEDED;
2546 break;
2547 case 'K':
2548 add_specific_symbol (optarg, &keep_specific_list);
2549 break;
2550 case 'N':
2551 add_specific_symbol (optarg, &strip_specific_list);
2552 break;
2553 case 'o':
2554 output_file = optarg;
2555 break;
2556 case 'p':
2557 preserve_dates = TRUE;
2558 break;
2559 case 'x':
2560 discard_locals = LOCALS_ALL;
2561 break;
2562 case 'X':
2563 discard_locals = LOCALS_START_L;
2564 break;
2565 case 'v':
2566 verbose = TRUE;
2567 break;
2568 case 'V':
2569 show_version = TRUE;
2570 break;
2571 case OPTION_FORMATS_INFO:
2572 formats_info = TRUE;
2573 break;
2574 case OPTION_ONLY_KEEP_DEBUG:
2575 strip_symbols = STRIP_NONDEBUG;
2576 break;
2577 case OPTION_KEEP_FILE_SYMBOLS:
2578 keep_file_symbols = 1;
2579 break;
2580 case 0:
2581 /* We've been given a long option. */
2582 break;
2583 case 'w':
2584 wildcard = TRUE;
2585 break;
2586 case 'H':
2587 case 'h':
2588 strip_usage (stdout, 0);
2589 default:
2590 strip_usage (stderr, 1);
2591 }
2592 }
2593
2594 if (formats_info)
2595 {
2596 display_info ();
2597 return 0;
2598 }
2599
2600 if (show_version)
2601 print_version ("strip");
2602
2603 /* Default is to strip all symbols. */
2604 if (strip_symbols == STRIP_UNDEF
2605 && discard_locals == LOCALS_UNDEF
2606 && strip_specific_list == NULL)
2607 strip_symbols = STRIP_ALL;
2608
2609 if (output_target == NULL)
2610 output_target = input_target;
2611
2612 i = optind;
2613 if (i == argc
2614 || (output_file != NULL && (i + 1) < argc))
2615 strip_usage (stderr, 1);
2616
2617 for (; i < argc; i++)
2618 {
2619 int hold_status = status;
2620 struct stat statbuf;
2621 char *tmpname;
2622
2623 if (get_file_size (argv[i]) < 1)
2624 {
2625 status = 1;
2626 continue;
2627 }
2628
2629 if (preserve_dates)
2630 /* No need to check the return value of stat().
2631 It has already been checked in get_file_size(). */
2632 stat (argv[i], &statbuf);
2633
2634 if (output_file != NULL)
2635 tmpname = output_file;
2636 else
2637 tmpname = make_tempname (argv[i]);
2638
2639 status = 0;
2640 copy_file (argv[i], tmpname, input_target, output_target);
2641 if (status == 0)
2642 {
2643 if (preserve_dates)
2644 set_times (tmpname, &statbuf);
2645 if (output_file == NULL)
2646 smart_rename (tmpname, argv[i], preserve_dates);
2647 status = hold_status;
2648 }
2649 else
2650 unlink_if_ordinary (tmpname);
2651 if (output_file == NULL)
2652 free (tmpname);
2653 }
2654
2655 return status;
2656 }
2657
2658 static int
2659 copy_main (int argc, char *argv[])
2660 {
2661 char * binary_architecture = NULL;
2662 char *input_filename = NULL;
2663 char *output_filename = NULL;
2664 char *input_target = NULL;
2665 char *output_target = NULL;
2666 bfd_boolean show_version = FALSE;
2667 bfd_boolean change_warn = TRUE;
2668 bfd_boolean formats_info = FALSE;
2669 int c;
2670 struct section_list *p;
2671 struct stat statbuf;
2672
2673 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
2674 copy_options, (int *) 0)) != EOF)
2675 {
2676 switch (c)
2677 {
2678 case 'b':
2679 copy_byte = atoi (optarg);
2680 if (copy_byte < 0)
2681 fatal (_("byte number must be non-negative"));
2682 break;
2683
2684 case 'B':
2685 binary_architecture = optarg;
2686 break;
2687
2688 case 'i':
2689 interleave = atoi (optarg);
2690 if (interleave < 1)
2691 fatal (_("interleave must be positive"));
2692 break;
2693
2694 case 'I':
2695 case 's': /* "source" - 'I' is preferred */
2696 input_target = optarg;
2697 break;
2698
2699 case 'O':
2700 case 'd': /* "destination" - 'O' is preferred */
2701 output_target = optarg;
2702 break;
2703
2704 case 'F':
2705 input_target = output_target = optarg;
2706 break;
2707
2708 case 'j':
2709 p = find_section_list (optarg, TRUE);
2710 if (p->remove)
2711 fatal (_("%s both copied and removed"), optarg);
2712 p->copy = TRUE;
2713 sections_copied = TRUE;
2714 break;
2715
2716 case 'R':
2717 p = find_section_list (optarg, TRUE);
2718 if (p->copy)
2719 fatal (_("%s both copied and removed"), optarg);
2720 p->remove = TRUE;
2721 sections_removed = TRUE;
2722 break;
2723
2724 case 'S':
2725 strip_symbols = STRIP_ALL;
2726 break;
2727
2728 case 'g':
2729 strip_symbols = STRIP_DEBUG;
2730 break;
2731
2732 case OPTION_STRIP_UNNEEDED:
2733 strip_symbols = STRIP_UNNEEDED;
2734 break;
2735
2736 case OPTION_ONLY_KEEP_DEBUG:
2737 strip_symbols = STRIP_NONDEBUG;
2738 break;
2739
2740 case OPTION_KEEP_FILE_SYMBOLS:
2741 keep_file_symbols = 1;
2742 break;
2743
2744 case OPTION_ADD_GNU_DEBUGLINK:
2745 gnu_debuglink_filename = optarg;
2746 break;
2747
2748 case 'K':
2749 add_specific_symbol (optarg, &keep_specific_list);
2750 break;
2751
2752 case 'N':
2753 add_specific_symbol (optarg, &strip_specific_list);
2754 break;
2755
2756 case OPTION_STRIP_UNNEEDED_SYMBOL:
2757 add_specific_symbol (optarg, &strip_unneeded_list);
2758 break;
2759
2760 case 'L':
2761 add_specific_symbol (optarg, &localize_specific_list);
2762 break;
2763
2764 case OPTION_GLOBALIZE_SYMBOL:
2765 add_specific_symbol (optarg, &globalize_specific_list);
2766 break;
2767
2768 case 'G':
2769 add_specific_symbol (optarg, &keepglobal_specific_list);
2770 break;
2771
2772 case 'W':
2773 add_specific_symbol (optarg, &weaken_specific_list);
2774 break;
2775
2776 case 'p':
2777 preserve_dates = TRUE;
2778 break;
2779
2780 case 'w':
2781 wildcard = TRUE;
2782 break;
2783
2784 case 'x':
2785 discard_locals = LOCALS_ALL;
2786 break;
2787
2788 case 'X':
2789 discard_locals = LOCALS_START_L;
2790 break;
2791
2792 case 'v':
2793 verbose = TRUE;
2794 break;
2795
2796 case 'V':
2797 show_version = TRUE;
2798 break;
2799
2800 case OPTION_FORMATS_INFO:
2801 formats_info = TRUE;
2802 break;
2803
2804 case OPTION_WEAKEN:
2805 weaken = TRUE;
2806 break;
2807
2808 case OPTION_ADD_SECTION:
2809 {
2810 const char *s;
2811 off_t size;
2812 struct section_add *pa;
2813 int len;
2814 char *name;
2815 FILE *f;
2816
2817 s = strchr (optarg, '=');
2818
2819 if (s == NULL)
2820 fatal (_("bad format for %s"), "--add-section");
2821
2822 size = get_file_size (s + 1);
2823 if (size < 1)
2824 {
2825 status = 1;
2826 break;
2827 }
2828
2829 pa = xmalloc (sizeof (struct section_add));
2830
2831 len = s - optarg;
2832 name = xmalloc (len + 1);
2833 strncpy (name, optarg, len);
2834 name[len] = '\0';
2835 pa->name = name;
2836
2837 pa->filename = s + 1;
2838 pa->size = size;
2839 pa->contents = xmalloc (size);
2840
2841 f = fopen (pa->filename, FOPEN_RB);
2842
2843 if (f == NULL)
2844 fatal (_("cannot open: %s: %s"),
2845 pa->filename, strerror (errno));
2846
2847 if (fread (pa->contents, 1, pa->size, f) == 0
2848 || ferror (f))
2849 fatal (_("%s: fread failed"), pa->filename);
2850
2851 fclose (f);
2852
2853 pa->next = add_sections;
2854 add_sections = pa;
2855 }
2856 break;
2857
2858 case OPTION_CHANGE_START:
2859 change_start = parse_vma (optarg, "--change-start");
2860 break;
2861
2862 case OPTION_CHANGE_SECTION_ADDRESS:
2863 case OPTION_CHANGE_SECTION_LMA:
2864 case OPTION_CHANGE_SECTION_VMA:
2865 {
2866 const char *s;
2867 int len;
2868 char *name;
2869 char *option = NULL;
2870 bfd_vma val;
2871 enum change_action what = CHANGE_IGNORE;
2872
2873 switch (c)
2874 {
2875 case OPTION_CHANGE_SECTION_ADDRESS:
2876 option = "--change-section-address";
2877 break;
2878 case OPTION_CHANGE_SECTION_LMA:
2879 option = "--change-section-lma";
2880 break;
2881 case OPTION_CHANGE_SECTION_VMA:
2882 option = "--change-section-vma";
2883 break;
2884 }
2885
2886 s = strchr (optarg, '=');
2887 if (s == NULL)
2888 {
2889 s = strchr (optarg, '+');
2890 if (s == NULL)
2891 {
2892 s = strchr (optarg, '-');
2893 if (s == NULL)
2894 fatal (_("bad format for %s"), option);
2895 }
2896 }
2897
2898 len = s - optarg;
2899 name = xmalloc (len + 1);
2900 strncpy (name, optarg, len);
2901 name[len] = '\0';
2902
2903 p = find_section_list (name, TRUE);
2904
2905 val = parse_vma (s + 1, option);
2906
2907 switch (*s)
2908 {
2909 case '=': what = CHANGE_SET; break;
2910 case '-': val = - val; /* Drop through. */
2911 case '+': what = CHANGE_MODIFY; break;
2912 }
2913
2914 switch (c)
2915 {
2916 case OPTION_CHANGE_SECTION_ADDRESS:
2917 p->change_vma = what;
2918 p->vma_val = val;
2919 /* Drop through. */
2920
2921 case OPTION_CHANGE_SECTION_LMA:
2922 p->change_lma = what;
2923 p->lma_val = val;
2924 break;
2925
2926 case OPTION_CHANGE_SECTION_VMA:
2927 p->change_vma = what;
2928 p->vma_val = val;
2929 break;
2930 }
2931 }
2932 break;
2933
2934 case OPTION_CHANGE_ADDRESSES:
2935 change_section_address = parse_vma (optarg, "--change-addresses");
2936 change_start = change_section_address;
2937 break;
2938
2939 case OPTION_CHANGE_WARNINGS:
2940 change_warn = TRUE;
2941 break;
2942
2943 case OPTION_CHANGE_LEADING_CHAR:
2944 change_leading_char = TRUE;
2945 break;
2946
2947 case OPTION_DEBUGGING:
2948 convert_debugging = TRUE;
2949 break;
2950
2951 case OPTION_GAP_FILL:
2952 {
2953 bfd_vma gap_fill_vma;
2954
2955 gap_fill_vma = parse_vma (optarg, "--gap-fill");
2956 gap_fill = (bfd_byte) gap_fill_vma;
2957 if ((bfd_vma) gap_fill != gap_fill_vma)
2958 {
2959 char buff[20];
2960
2961 sprintf_vma (buff, gap_fill_vma);
2962
2963 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
2964 buff, gap_fill);
2965 }
2966 gap_fill_set = TRUE;
2967 }
2968 break;
2969
2970 case OPTION_NO_CHANGE_WARNINGS:
2971 change_warn = FALSE;
2972 break;
2973
2974 case OPTION_PAD_TO:
2975 pad_to = parse_vma (optarg, "--pad-to");
2976 pad_to_set = TRUE;
2977 break;
2978
2979 case OPTION_REMOVE_LEADING_CHAR:
2980 remove_leading_char = TRUE;
2981 break;
2982
2983 case OPTION_REDEFINE_SYM:
2984 {
2985 /* Push this redefinition onto redefine_symbol_list. */
2986
2987 int len;
2988 const char *s;
2989 const char *nextarg;
2990 char *source, *target;
2991
2992 s = strchr (optarg, '=');
2993 if (s == NULL)
2994 fatal (_("bad format for %s"), "--redefine-sym");
2995
2996 len = s - optarg;
2997 source = xmalloc (len + 1);
2998 strncpy (source, optarg, len);
2999 source[len] = '\0';
3000
3001 nextarg = s + 1;
3002 len = strlen (nextarg);
3003 target = xmalloc (len + 1);
3004 strcpy (target, nextarg);
3005
3006 redefine_list_append ("--redefine-sym", source, target);
3007
3008 free (source);
3009 free (target);
3010 }
3011 break;
3012
3013 case OPTION_REDEFINE_SYMS:
3014 add_redefine_syms_file (optarg);
3015 break;
3016
3017 case OPTION_SET_SECTION_FLAGS:
3018 {
3019 const char *s;
3020 int len;
3021 char *name;
3022
3023 s = strchr (optarg, '=');
3024 if (s == NULL)
3025 fatal (_("bad format for %s"), "--set-section-flags");
3026
3027 len = s - optarg;
3028 name = xmalloc (len + 1);
3029 strncpy (name, optarg, len);
3030 name[len] = '\0';
3031
3032 p = find_section_list (name, TRUE);
3033
3034 p->set_flags = TRUE;
3035 p->flags = parse_flags (s + 1);
3036 }
3037 break;
3038
3039 case OPTION_RENAME_SECTION:
3040 {
3041 flagword flags;
3042 const char *eq, *fl;
3043 char *old_name;
3044 char *new_name;
3045 unsigned int len;
3046
3047 eq = strchr (optarg, '=');
3048 if (eq == NULL)
3049 fatal (_("bad format for %s"), "--rename-section");
3050
3051 len = eq - optarg;
3052 if (len == 0)
3053 fatal (_("bad format for %s"), "--rename-section");
3054
3055 old_name = xmalloc (len + 1);
3056 strncpy (old_name, optarg, len);
3057 old_name[len] = 0;
3058
3059 eq++;
3060 fl = strchr (eq, ',');
3061 if (fl)
3062 {
3063 flags = parse_flags (fl + 1);
3064 len = fl - eq;
3065 }
3066 else
3067 {
3068 flags = -1;
3069 len = strlen (eq);
3070 }
3071
3072 if (len == 0)
3073 fatal (_("bad format for %s"), "--rename-section");
3074
3075 new_name = xmalloc (len + 1);
3076 strncpy (new_name, eq, len);
3077 new_name[len] = 0;
3078
3079 add_section_rename (old_name, new_name, flags);
3080 }
3081 break;
3082
3083 case OPTION_SET_START:
3084 set_start = parse_vma (optarg, "--set-start");
3085 set_start_set = TRUE;
3086 break;
3087
3088 case OPTION_SREC_LEN:
3089 Chunk = parse_vma (optarg, "--srec-len");
3090 break;
3091
3092 case OPTION_SREC_FORCES3:
3093 S3Forced = TRUE;
3094 break;
3095
3096 case OPTION_STRIP_SYMBOLS:
3097 add_specific_symbols (optarg, &strip_specific_list);
3098 break;
3099
3100 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3101 add_specific_symbols (optarg, &strip_unneeded_list);
3102 break;
3103
3104 case OPTION_KEEP_SYMBOLS:
3105 add_specific_symbols (optarg, &keep_specific_list);
3106 break;
3107
3108 case OPTION_LOCALIZE_HIDDEN:
3109 localize_hidden = TRUE;
3110 break;
3111
3112 case OPTION_LOCALIZE_SYMBOLS:
3113 add_specific_symbols (optarg, &localize_specific_list);
3114 break;
3115
3116 case OPTION_GLOBALIZE_SYMBOLS:
3117 add_specific_symbols (optarg, &globalize_specific_list);
3118 break;
3119
3120 case OPTION_KEEPGLOBAL_SYMBOLS:
3121 add_specific_symbols (optarg, &keepglobal_specific_list);
3122 break;
3123
3124 case OPTION_WEAKEN_SYMBOLS:
3125 add_specific_symbols (optarg, &weaken_specific_list);
3126 break;
3127
3128 case OPTION_ALT_MACH_CODE:
3129 use_alt_mach_code = strtoul (optarg, NULL, 0);
3130 if (use_alt_mach_code == 0)
3131 fatal (_("unable to parse alternative machine code"));
3132 break;
3133
3134 case OPTION_PREFIX_SYMBOLS:
3135 prefix_symbols_string = optarg;
3136 break;
3137
3138 case OPTION_PREFIX_SECTIONS:
3139 prefix_sections_string = optarg;
3140 break;
3141
3142 case OPTION_PREFIX_ALLOC_SECTIONS:
3143 prefix_alloc_sections_string = optarg;
3144 break;
3145
3146 case OPTION_READONLY_TEXT:
3147 bfd_flags_to_set |= WP_TEXT;
3148 bfd_flags_to_clear &= ~WP_TEXT;
3149 break;
3150
3151 case OPTION_WRITABLE_TEXT:
3152 bfd_flags_to_clear |= WP_TEXT;
3153 bfd_flags_to_set &= ~WP_TEXT;
3154 break;
3155
3156 case OPTION_PURE:
3157 bfd_flags_to_set |= D_PAGED;
3158 bfd_flags_to_clear &= ~D_PAGED;
3159 break;
3160
3161 case OPTION_IMPURE:
3162 bfd_flags_to_clear |= D_PAGED;
3163 bfd_flags_to_set &= ~D_PAGED;
3164 break;
3165
3166 case 0:
3167 /* We've been given a long option. */
3168 break;
3169
3170 case 'H':
3171 case 'h':
3172 copy_usage (stdout, 0);
3173
3174 default:
3175 copy_usage (stderr, 1);
3176 }
3177 }
3178
3179 if (formats_info)
3180 {
3181 display_info ();
3182 return 0;
3183 }
3184
3185 if (show_version)
3186 print_version ("objcopy");
3187
3188 if (copy_byte >= interleave)
3189 fatal (_("byte number must be less than interleave"));
3190
3191 if (optind == argc || optind + 2 < argc)
3192 copy_usage (stderr, 1);
3193
3194 input_filename = argv[optind];
3195 if (optind + 1 < argc)
3196 output_filename = argv[optind + 1];
3197
3198 /* Default is to strip no symbols. */
3199 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3200 strip_symbols = STRIP_NONE;
3201
3202 if (output_target == NULL)
3203 output_target = input_target;
3204
3205 if (binary_architecture != NULL)
3206 {
3207 if (input_target && strcmp (input_target, "binary") == 0)
3208 {
3209 const bfd_arch_info_type * temp_arch_info;
3210
3211 temp_arch_info = bfd_scan_arch (binary_architecture);
3212
3213 if (temp_arch_info != NULL)
3214 {
3215 bfd_external_binary_architecture = temp_arch_info->arch;
3216 bfd_external_machine = temp_arch_info->mach;
3217 }
3218 else
3219 fatal (_("architecture %s unknown"), binary_architecture);
3220 }
3221 else
3222 {
3223 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
3224 non_fatal (_(" Argument %s ignored"), binary_architecture);
3225 }
3226 }
3227
3228 if (preserve_dates)
3229 if (stat (input_filename, & statbuf) < 0)
3230 fatal (_("warning: could not locate '%s'. System error message: %s"),
3231 input_filename, strerror (errno));
3232
3233 /* If there is no destination file, or the source and destination files
3234 are the same, then create a temp and rename the result into the input. */
3235 if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
3236 {
3237 char *tmpname = make_tempname (input_filename);
3238
3239 copy_file (input_filename, tmpname, input_target, output_target);
3240 if (status == 0)
3241 {
3242 if (preserve_dates)
3243 set_times (tmpname, &statbuf);
3244 smart_rename (tmpname, input_filename, preserve_dates);
3245 }
3246 else
3247 unlink (tmpname);
3248 }
3249 else
3250 {
3251 copy_file (input_filename, output_filename, input_target, output_target);
3252
3253 if (status == 0 && preserve_dates)
3254 set_times (output_filename, &statbuf);
3255 else if (status != 0)
3256 unlink_if_ordinary (output_filename);
3257 }
3258
3259 if (change_warn)
3260 {
3261 for (p = change_sections; p != NULL; p = p->next)
3262 {
3263 if (! p->used)
3264 {
3265 if (p->change_vma != CHANGE_IGNORE)
3266 {
3267 char buff [20];
3268
3269 sprintf_vma (buff, p->vma_val);
3270
3271 /* xgettext:c-format */
3272 non_fatal (_("%s %s%c0x%s never used"),
3273 "--change-section-vma",
3274 p->name,
3275 p->change_vma == CHANGE_SET ? '=' : '+',
3276 buff);
3277 }
3278
3279 if (p->change_lma != CHANGE_IGNORE)
3280 {
3281 char buff [20];
3282
3283 sprintf_vma (buff, p->lma_val);
3284
3285 /* xgettext:c-format */
3286 non_fatal (_("%s %s%c0x%s never used"),
3287 "--change-section-lma",
3288 p->name,
3289 p->change_lma == CHANGE_SET ? '=' : '+',
3290 buff);
3291 }
3292 }
3293 }
3294 }
3295
3296 return 0;
3297 }
3298
3299 int
3300 main (int argc, char *argv[])
3301 {
3302 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3303 setlocale (LC_MESSAGES, "");
3304 #endif
3305 #if defined (HAVE_SETLOCALE)
3306 setlocale (LC_CTYPE, "");
3307 #endif
3308 bindtextdomain (PACKAGE, LOCALEDIR);
3309 textdomain (PACKAGE);
3310
3311 program_name = argv[0];
3312 xmalloc_set_program_name (program_name);
3313
3314 START_PROGRESS (program_name, 0);
3315
3316 expandargv (&argc, &argv);
3317
3318 strip_symbols = STRIP_UNDEF;
3319 discard_locals = LOCALS_UNDEF;
3320
3321 bfd_init ();
3322 set_default_bfd_target ();
3323
3324 if (is_strip < 0)
3325 {
3326 int i = strlen (program_name);
3327 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3328 /* Drop the .exe suffix, if any. */
3329 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
3330 {
3331 i -= 4;
3332 program_name[i] = '\0';
3333 }
3334 #endif
3335 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
3336 }
3337
3338 if (is_strip)
3339 strip_main (argc, argv);
3340 else
3341 copy_main (argc, argv);
3342
3343 END_PROGRESS (program_name);
3344
3345 return status;
3346 }
This page took 0.135268 seconds and 5 git commands to generate.