daily update
[binutils.git] / binutils / objcopy.c
blobe93534d6fcc509ef429aee029a8edd010395c0f0
1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005
4 Free Software Foundation, Inc.
6 This file is part of GNU Binutils.
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.
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.
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. */
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>
34 /* A list of symbols to explicitly strip out, or to keep. A linked
35 list is good enough for a small number from the command line, but
36 this will slow things down a lot if many symbols are being
37 deleted. */
39 struct symlist
41 const char *name;
42 struct symlist *next;
45 /* A list to support redefine_sym. */
46 struct redefine_node
48 char *source;
49 char *target;
50 struct redefine_node *next;
53 typedef struct section_rename
55 const char * old_name;
56 const char * new_name;
57 flagword flags;
58 struct section_rename * next;
60 section_rename;
62 /* List of sections to be renamed. */
63 static section_rename *section_rename_list;
65 #define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;}
67 static asymbol **isympp = NULL; /* Input symbols. */
68 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
70 /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */
71 static int copy_byte = -1;
72 static int interleave = 4;
74 static bfd_boolean verbose; /* Print file and target names. */
75 static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
76 static int status = 0; /* Exit status. */
78 enum strip_action
80 STRIP_UNDEF,
81 STRIP_NONE, /* Don't strip. */
82 STRIP_DEBUG, /* Strip all debugger symbols. */
83 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
84 STRIP_NONDEBUG, /* Strip everything but debug info. */
85 STRIP_ALL /* Strip all symbols. */
88 /* Which symbols to remove. */
89 static enum strip_action strip_symbols;
91 enum locals_action
93 LOCALS_UNDEF,
94 LOCALS_START_L, /* Discard locals starting with L. */
95 LOCALS_ALL /* Discard all locals. */
98 /* Which local symbols to remove. Overrides STRIP_ALL. */
99 static enum locals_action discard_locals;
101 /* What kind of change to perform. */
102 enum change_action
104 CHANGE_IGNORE,
105 CHANGE_MODIFY,
106 CHANGE_SET
109 /* Structure used to hold lists of sections and actions to take. */
110 struct section_list
112 struct section_list * next; /* Next section to change. */
113 const char * name; /* Section name. */
114 bfd_boolean used; /* Whether this entry was used. */
115 bfd_boolean remove; /* Whether to remove this section. */
116 bfd_boolean copy; /* Whether to copy this section. */
117 enum change_action change_vma;/* Whether to change or set VMA. */
118 bfd_vma vma_val; /* Amount to change by or set to. */
119 enum change_action change_lma;/* Whether to change or set LMA. */
120 bfd_vma lma_val; /* Amount to change by or set to. */
121 bfd_boolean set_flags; /* Whether to set the section flags. */
122 flagword flags; /* What to set the section flags to. */
125 static struct section_list *change_sections;
127 /* TRUE if some sections are to be removed. */
128 static bfd_boolean sections_removed;
130 /* TRUE if only some sections are to be copied. */
131 static bfd_boolean sections_copied;
133 /* Changes to the start address. */
134 static bfd_vma change_start = 0;
135 static bfd_boolean set_start_set = FALSE;
136 static bfd_vma set_start;
138 /* Changes to section addresses. */
139 static bfd_vma change_section_address = 0;
141 /* Filling gaps between sections. */
142 static bfd_boolean gap_fill_set = FALSE;
143 static bfd_byte gap_fill = 0;
145 /* Pad to a given address. */
146 static bfd_boolean pad_to_set = FALSE;
147 static bfd_vma pad_to;
149 /* Use alternate machine code? */
150 static int use_alt_mach_code = 0;
152 /* Output BFD flags user wants to set or clear */
153 static flagword bfd_flags_to_set;
154 static flagword bfd_flags_to_clear;
156 /* List of sections to add. */
157 struct section_add
159 /* Next section to add. */
160 struct section_add *next;
161 /* Name of section to add. */
162 const char *name;
163 /* Name of file holding section contents. */
164 const char *filename;
165 /* Size of file. */
166 size_t size;
167 /* Contents of file. */
168 bfd_byte *contents;
169 /* BFD section, after it has been added. */
170 asection *section;
173 /* List of sections to add to the output BFD. */
174 static struct section_add *add_sections;
176 /* If non-NULL the argument to --add-gnu-debuglink.
177 This should be the filename to store in the .gnu_debuglink section. */
178 static const char * gnu_debuglink_filename = NULL;
180 /* Whether to convert debugging information. */
181 static bfd_boolean convert_debugging = FALSE;
183 /* Whether to change the leading character in symbol names. */
184 static bfd_boolean change_leading_char = FALSE;
186 /* Whether to remove the leading character from global symbol names. */
187 static bfd_boolean remove_leading_char = FALSE;
189 /* Whether to permit wildcard in symbol comparison. */
190 static bfd_boolean wildcard = FALSE;
192 /* List of symbols to strip, keep, localize, keep-global, weaken,
193 or redefine. */
194 static struct symlist *strip_specific_list = NULL;
195 static struct symlist *strip_unneeded_list = NULL;
196 static struct symlist *keep_specific_list = NULL;
197 static struct symlist *localize_specific_list = NULL;
198 static struct symlist *globalize_specific_list = NULL;
199 static struct symlist *keepglobal_specific_list = NULL;
200 static struct symlist *weaken_specific_list = NULL;
201 static struct redefine_node *redefine_sym_list = NULL;
203 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
204 static bfd_boolean weaken = FALSE;
206 /* If this is TRUE, we retain BSF_FILE symbols. */
207 static bfd_boolean keep_file_symbols = FALSE;
209 /* Prefix symbols/sections. */
210 static char *prefix_symbols_string = 0;
211 static char *prefix_sections_string = 0;
212 static char *prefix_alloc_sections_string = 0;
214 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
215 enum command_line_switch
217 OPTION_ADD_SECTION=150,
218 OPTION_CHANGE_ADDRESSES,
219 OPTION_CHANGE_LEADING_CHAR,
220 OPTION_CHANGE_START,
221 OPTION_CHANGE_SECTION_ADDRESS,
222 OPTION_CHANGE_SECTION_LMA,
223 OPTION_CHANGE_SECTION_VMA,
224 OPTION_CHANGE_WARNINGS,
225 OPTION_DEBUGGING,
226 OPTION_GAP_FILL,
227 OPTION_NO_CHANGE_WARNINGS,
228 OPTION_PAD_TO,
229 OPTION_REMOVE_LEADING_CHAR,
230 OPTION_SET_SECTION_FLAGS,
231 OPTION_SET_START,
232 OPTION_STRIP_UNNEEDED,
233 OPTION_WEAKEN,
234 OPTION_REDEFINE_SYM,
235 OPTION_REDEFINE_SYMS,
236 OPTION_SREC_LEN,
237 OPTION_SREC_FORCES3,
238 OPTION_STRIP_SYMBOLS,
239 OPTION_STRIP_UNNEEDED_SYMBOL,
240 OPTION_STRIP_UNNEEDED_SYMBOLS,
241 OPTION_KEEP_SYMBOLS,
242 OPTION_LOCALIZE_SYMBOLS,
243 OPTION_GLOBALIZE_SYMBOL,
244 OPTION_GLOBALIZE_SYMBOLS,
245 OPTION_KEEPGLOBAL_SYMBOLS,
246 OPTION_WEAKEN_SYMBOLS,
247 OPTION_RENAME_SECTION,
248 OPTION_ALT_MACH_CODE,
249 OPTION_PREFIX_SYMBOLS,
250 OPTION_PREFIX_SECTIONS,
251 OPTION_PREFIX_ALLOC_SECTIONS,
252 OPTION_FORMATS_INFO,
253 OPTION_ADD_GNU_DEBUGLINK,
254 OPTION_ONLY_KEEP_DEBUG,
255 OPTION_KEEP_FILE_SYMBOLS,
256 OPTION_READONLY_TEXT,
257 OPTION_WRITABLE_TEXT,
258 OPTION_PURE,
259 OPTION_IMPURE
262 /* Options to handle if running as "strip". */
264 static struct option strip_options[] =
266 {"discard-all", no_argument, 0, 'x'},
267 {"discard-locals", no_argument, 0, 'X'},
268 {"format", required_argument, 0, 'F'}, /* Obsolete */
269 {"help", no_argument, 0, 'h'},
270 {"info", no_argument, 0, OPTION_FORMATS_INFO},
271 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
272 {"input-target", required_argument, 0, 'I'},
273 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
274 {"keep-symbol", required_argument, 0, 'K'},
275 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
276 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
277 {"output-target", required_argument, 0, 'O'},
278 {"output-file", required_argument, 0, 'o'},
279 {"preserve-dates", no_argument, 0, 'p'},
280 {"remove-section", required_argument, 0, 'R'},
281 {"strip-all", no_argument, 0, 's'},
282 {"strip-debug", no_argument, 0, 'S'},
283 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
284 {"strip-symbol", required_argument, 0, 'N'},
285 {"target", required_argument, 0, 'F'},
286 {"verbose", no_argument, 0, 'v'},
287 {"version", no_argument, 0, 'V'},
288 {"wildcard", no_argument, 0, 'w'},
289 {0, no_argument, 0, 0}
292 /* Options to handle if running as "objcopy". */
294 static struct option copy_options[] =
296 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
297 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
298 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
299 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
300 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
301 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
302 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
303 {"binary-architecture", required_argument, 0, 'B'},
304 {"byte", required_argument, 0, 'b'},
305 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
306 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
307 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
308 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
309 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
310 {"change-start", required_argument, 0, OPTION_CHANGE_START},
311 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
312 {"debugging", no_argument, 0, OPTION_DEBUGGING},
313 {"discard-all", no_argument, 0, 'x'},
314 {"discard-locals", no_argument, 0, 'X'},
315 {"format", required_argument, 0, 'F'}, /* Obsolete */
316 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
317 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
318 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
319 {"help", no_argument, 0, 'h'},
320 {"impure", no_argument, 0, OPTION_IMPURE},
321 {"info", no_argument, 0, OPTION_FORMATS_INFO},
322 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
323 {"input-target", required_argument, 0, 'I'},
324 {"interleave", required_argument, 0, 'i'},
325 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
326 {"keep-global-symbol", required_argument, 0, 'G'},
327 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
328 {"keep-symbol", required_argument, 0, 'K'},
329 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
330 {"localize-symbol", required_argument, 0, 'L'},
331 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
332 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
333 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
334 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
335 {"only-section", required_argument, 0, 'j'},
336 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
337 {"output-target", required_argument, 0, 'O'},
338 {"pad-to", required_argument, 0, OPTION_PAD_TO},
339 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
340 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
341 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
342 {"preserve-dates", no_argument, 0, 'p'},
343 {"pure", no_argument, 0, OPTION_PURE},
344 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
345 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
346 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
347 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
348 {"remove-section", required_argument, 0, 'R'},
349 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
350 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
351 {"set-start", required_argument, 0, OPTION_SET_START},
352 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
353 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
354 {"strip-all", no_argument, 0, 'S'},
355 {"strip-debug", no_argument, 0, 'g'},
356 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
357 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
358 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
359 {"strip-symbol", required_argument, 0, 'N'},
360 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
361 {"target", required_argument, 0, 'F'},
362 {"verbose", no_argument, 0, 'v'},
363 {"version", no_argument, 0, 'V'},
364 {"weaken", no_argument, 0, OPTION_WEAKEN},
365 {"weaken-symbol", required_argument, 0, 'W'},
366 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
367 {"wildcard", no_argument, 0, 'w'},
368 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
369 {0, no_argument, 0, 0}
372 /* IMPORTS */
373 extern char *program_name;
375 /* This flag distinguishes between strip and objcopy:
376 1 means this is 'strip'; 0 means this is 'objcopy'.
377 -1 means if we should use argv[0] to decide. */
378 extern int is_strip;
380 /* The maximum length of an S record. This variable is declared in srec.c
381 and can be modified by the --srec-len parameter. */
382 extern unsigned int Chunk;
384 /* Restrict the generation of Srecords to type S3 only.
385 This variable is declare in bfd/srec.c and can be toggled
386 on by the --srec-forceS3 command line switch. */
387 extern bfd_boolean S3Forced;
389 /* Defined in bfd/binary.c. Used to set architecture and machine of input
390 binary files. */
391 extern enum bfd_architecture bfd_external_binary_architecture;
392 extern unsigned long bfd_external_machine;
394 /* Forward declarations. */
395 static void setup_section (bfd *, asection *, void *);
396 static void setup_bfd_headers (bfd *, bfd *);
397 static void copy_section (bfd *, asection *, void *);
398 static void get_sections (bfd *, asection *, void *);
399 static int compare_section_lma (const void *, const void *);
400 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
401 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
402 static const char *lookup_sym_redefinition (const char *);
404 static void
405 copy_usage (FILE *stream, int exit_status)
407 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
408 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
409 fprintf (stream, _(" The options are:\n"));
410 fprintf (stream, _("\
411 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
412 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
413 -B --binary-architecture <arch> Set arch of output file, when input is binary\n\
414 -F --target <bfdname> Set both input and output format to <bfdname>\n\
415 --debugging Convert debugging information, if possible\n\
416 -p --preserve-dates Copy modified/access timestamps to the output\n\
417 -j --only-section <name> Only copy section <name> into the output\n\
418 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
419 -R --remove-section <name> Remove section <name> from the output\n\
420 -S --strip-all Remove all symbol and relocation information\n\
421 -g --strip-debug Remove all debugging symbols & sections\n\
422 --strip-unneeded Remove all symbols not needed by relocations\n\
423 -N --strip-symbol <name> Do not copy symbol <name>\n\
424 --strip-unneeded-symbol <name>\n\
425 Do not copy symbol <name> unless needed by\n\
426 relocations\n\
427 --only-keep-debug Strip everything but the debug information\n\
428 -K --keep-symbol <name> Do not strip symbol <name>\n\
429 --keep-file-symbols Do not strip file symbol(s)\n\
430 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
431 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
432 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
433 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
434 --weaken Force all global symbols to be marked as weak\n\
435 -w --wildcard Permit wildcard in symbol comparison\n\
436 -x --discard-all Remove all non-global symbols\n\
437 -X --discard-locals Remove any compiler-generated symbols\n\
438 -i --interleave <number> Only copy one out of every <number> bytes\n\
439 -b --byte <num> Select byte <num> in every interleaved block\n\
440 --gap-fill <val> Fill gaps between sections with <val>\n\
441 --pad-to <addr> Pad the last section up to address <addr>\n\
442 --set-start <addr> Set the start address to <addr>\n\
443 {--change-start|--adjust-start} <incr>\n\
444 Add <incr> to the start address\n\
445 {--change-addresses|--adjust-vma} <incr>\n\
446 Add <incr> to LMA, VMA and start addresses\n\
447 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
448 Change LMA and VMA of section <name> by <val>\n\
449 --change-section-lma <name>{=|+|-}<val>\n\
450 Change the LMA of section <name> by <val>\n\
451 --change-section-vma <name>{=|+|-}<val>\n\
452 Change the VMA of section <name> by <val>\n\
453 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
454 Warn if a named section does not exist\n\
455 --set-section-flags <name>=<flags>\n\
456 Set section <name>'s properties to <flags>\n\
457 --add-section <name>=<file> Add section <name> found in <file> to output\n\
458 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
459 --change-leading-char Force output format's leading character style\n\
460 --remove-leading-char Remove leading character from global symbols\n\
461 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
462 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
463 listed in <file>\n\
464 --srec-len <number> Restrict the length of generated Srecords\n\
465 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
466 --strip-symbols <file> -N for all symbols listed in <file>\n\
467 --strip-unneeded-symbols <file>\n\
468 --strip-unneeded-symbol for all symbols listed\n\
469 in <file>\n\
470 --keep-symbols <file> -K for all symbols listed in <file>\n\
471 --localize-symbols <file> -L for all symbols listed in <file>\n\
472 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
473 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
474 --weaken-symbols <file> -W for all symbols listed in <file>\n\
475 --alt-machine-code <index> Use alternate machine code for output\n\
476 --writable-text Mark the output text as writable\n\
477 --readonly-text Make the output text write protected\n\
478 --pure Mark the output file as demand paged\n\
479 --impure Mark the output file as impure\n\
480 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
481 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
482 --prefix-alloc-sections <prefix>\n\
483 Add <prefix> to start of every allocatable\n\
484 section name\n\
485 -v --verbose List all object files modified\n\
486 @<file> Read options from <file>\n\
487 -V --version Display this program's version number\n\
488 -h --help Display this output\n\
489 --info List object formats & architectures supported\n\
490 "));
491 list_supported_targets (program_name, stream);
492 if (exit_status == 0)
493 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
494 exit (exit_status);
497 static void
498 strip_usage (FILE *stream, int exit_status)
500 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
501 fprintf (stream, _(" Removes symbols and sections from files\n"));
502 fprintf (stream, _(" The options are:\n"));
503 fprintf (stream, _("\
504 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
505 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
506 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
507 -p --preserve-dates Copy modified/access timestamps to the output\n\
508 -R --remove-section=<name> Remove section <name> from the output\n\
509 -s --strip-all Remove all symbol and relocation information\n\
510 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
511 --strip-unneeded Remove all symbols not needed by relocations\n\
512 --only-keep-debug Strip everything but the debug information\n\
513 -N --strip-symbol=<name> Do not copy symbol <name>\n\
514 -K --keep-symbol=<name> Do not strip symbol <name>\n\
515 --keep-file-symbols Do not strip file symbol(s)\n\
516 -w --wildcard Permit wildcard in symbol comparison\n\
517 -x --discard-all Remove all non-global symbols\n\
518 -X --discard-locals Remove any compiler-generated symbols\n\
519 -v --verbose List all object files modified\n\
520 -V --version Display this program's version number\n\
521 -h --help Display this output\n\
522 --info List object formats & architectures supported\n\
523 -o <file> Place stripped output into <file>\n\
524 "));
526 list_supported_targets (program_name, stream);
527 if (exit_status == 0)
528 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
529 exit (exit_status);
532 /* Parse section flags into a flagword, with a fatal error if the
533 string can't be parsed. */
535 static flagword
536 parse_flags (const char *s)
538 flagword ret;
539 const char *snext;
540 int len;
542 ret = SEC_NO_FLAGS;
546 snext = strchr (s, ',');
547 if (snext == NULL)
548 len = strlen (s);
549 else
551 len = snext - s;
552 ++snext;
555 if (0) ;
556 #define PARSE_FLAG(fname,fval) \
557 else if (strncasecmp (fname, s, len) == 0) ret |= fval
558 PARSE_FLAG ("alloc", SEC_ALLOC);
559 PARSE_FLAG ("load", SEC_LOAD);
560 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
561 PARSE_FLAG ("readonly", SEC_READONLY);
562 PARSE_FLAG ("debug", SEC_DEBUGGING);
563 PARSE_FLAG ("code", SEC_CODE);
564 PARSE_FLAG ("data", SEC_DATA);
565 PARSE_FLAG ("rom", SEC_ROM);
566 PARSE_FLAG ("share", SEC_COFF_SHARED);
567 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
568 #undef PARSE_FLAG
569 else
571 char *copy;
573 copy = xmalloc (len + 1);
574 strncpy (copy, s, len);
575 copy[len] = '\0';
576 non_fatal (_("unrecognized section flag `%s'"), copy);
577 fatal (_("supported flags: %s"),
578 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
581 s = snext;
583 while (s != NULL);
585 return ret;
588 /* Find and optionally add an entry in the change_sections list. */
590 static struct section_list *
591 find_section_list (const char *name, bfd_boolean add)
593 struct section_list *p;
595 for (p = change_sections; p != NULL; p = p->next)
596 if (strcmp (p->name, name) == 0)
597 return p;
599 if (! add)
600 return NULL;
602 p = xmalloc (sizeof (struct section_list));
603 p->name = name;
604 p->used = FALSE;
605 p->remove = FALSE;
606 p->copy = FALSE;
607 p->change_vma = CHANGE_IGNORE;
608 p->change_lma = CHANGE_IGNORE;
609 p->vma_val = 0;
610 p->lma_val = 0;
611 p->set_flags = FALSE;
612 p->flags = 0;
614 p->next = change_sections;
615 change_sections = p;
617 return p;
620 /* Add a symbol to strip_specific_list. */
622 static void
623 add_specific_symbol (const char *name, struct symlist **list)
625 struct symlist *tmp_list;
627 tmp_list = xmalloc (sizeof (struct symlist));
628 tmp_list->name = name;
629 tmp_list->next = *list;
630 *list = tmp_list;
633 /* Add symbols listed in `filename' to strip_specific_list. */
635 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
636 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
638 static void
639 add_specific_symbols (const char *filename, struct symlist **list)
641 off_t size;
642 FILE * f;
643 char * line;
644 char * buffer;
645 unsigned int line_count;
647 size = get_file_size (filename);
648 if (size == 0)
649 return;
651 buffer = xmalloc (size + 2);
652 f = fopen (filename, FOPEN_RT);
653 if (f == NULL)
654 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
656 if (fread (buffer, 1, size, f) == 0 || ferror (f))
657 fatal (_("%s: fread failed"), filename);
659 fclose (f);
660 buffer [size] = '\n';
661 buffer [size + 1] = '\0';
663 line_count = 1;
665 for (line = buffer; * line != '\0'; line ++)
667 char * eol;
668 char * name;
669 char * name_end;
670 int finished = FALSE;
672 for (eol = line;; eol ++)
674 switch (* eol)
676 case '\n':
677 * eol = '\0';
678 /* Cope with \n\r. */
679 if (eol[1] == '\r')
680 ++ eol;
681 finished = TRUE;
682 break;
684 case '\r':
685 * eol = '\0';
686 /* Cope with \r\n. */
687 if (eol[1] == '\n')
688 ++ eol;
689 finished = TRUE;
690 break;
692 case 0:
693 finished = TRUE;
694 break;
696 case '#':
697 /* Line comment, Terminate the line here, in case a
698 name is present and then allow the rest of the
699 loop to find the real end of the line. */
700 * eol = '\0';
701 break;
703 default:
704 break;
707 if (finished)
708 break;
711 /* A name may now exist somewhere between 'line' and 'eol'.
712 Strip off leading whitespace and trailing whitespace,
713 then add it to the list. */
714 for (name = line; IS_WHITESPACE (* name); name ++)
716 for (name_end = name;
717 (! IS_WHITESPACE (* name_end))
718 && (! IS_LINE_TERMINATOR (* name_end));
719 name_end ++)
722 if (! IS_LINE_TERMINATOR (* name_end))
724 char * extra;
726 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
729 if (! IS_LINE_TERMINATOR (* extra))
730 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
731 filename, line_count);
734 * name_end = '\0';
736 if (name_end > name)
737 add_specific_symbol (name, list);
739 /* Advance line pointer to end of line. The 'eol ++' in the for
740 loop above will then advance us to the start of the next line. */
741 line = eol;
742 line_count ++;
746 /* See whether a symbol should be stripped or kept based on
747 strip_specific_list and keep_symbols. */
749 static bfd_boolean
750 is_specified_symbol (const char *name, struct symlist *list)
752 struct symlist *tmp_list;
754 if (wildcard)
756 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
757 if (*(tmp_list->name) != '!')
759 if (!fnmatch (tmp_list->name, name, 0))
760 return TRUE;
762 else
764 if (fnmatch (tmp_list->name + 1, name, 0))
765 return TRUE;
768 else
770 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
771 if (strcmp (name, tmp_list->name) == 0)
772 return TRUE;
775 return FALSE;
778 /* See if a section is being removed. */
780 static bfd_boolean
781 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
783 if (sections_removed || sections_copied)
785 struct section_list *p;
787 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE);
789 if (sections_removed && p != NULL && p->remove)
790 return TRUE;
791 if (sections_copied && (p == NULL || ! p->copy))
792 return TRUE;
795 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
797 if (strip_symbols == STRIP_DEBUG
798 || strip_symbols == STRIP_UNNEEDED
799 || strip_symbols == STRIP_ALL
800 || discard_locals == LOCALS_ALL
801 || convert_debugging)
802 return TRUE;
804 if (strip_symbols == STRIP_NONDEBUG)
805 return FALSE;
808 return FALSE;
811 /* Choose which symbol entries to copy; put the result in OSYMS.
812 We don't copy in place, because that confuses the relocs.
813 Return the number of symbols to print. */
815 static unsigned int
816 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
817 asymbol **isyms, long symcount)
819 asymbol **from = isyms, **to = osyms;
820 long src_count = 0, dst_count = 0;
821 int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
822 == HAS_RELOC;
824 for (; src_count < symcount; src_count++)
826 asymbol *sym = from[src_count];
827 flagword flags = sym->flags;
828 char *name = (char *) bfd_asymbol_name (sym);
829 int keep;
830 bfd_boolean undefined;
831 bfd_boolean rem_leading_char;
832 bfd_boolean add_leading_char;
834 undefined = bfd_is_und_section (bfd_get_section (sym));
836 if (redefine_sym_list)
838 char *old_name, *new_name;
840 old_name = (char *) bfd_asymbol_name (sym);
841 new_name = (char *) lookup_sym_redefinition (old_name);
842 bfd_asymbol_name (sym) = new_name;
843 name = new_name;
846 /* Check if we will remove the current leading character. */
847 rem_leading_char =
848 (name[0] == bfd_get_symbol_leading_char (abfd))
849 && (change_leading_char
850 || (remove_leading_char
851 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
852 || undefined
853 || bfd_is_com_section (bfd_get_section (sym)))));
855 /* Check if we will add a new leading character. */
856 add_leading_char =
857 change_leading_char
858 && (bfd_get_symbol_leading_char (obfd) != '\0')
859 && (bfd_get_symbol_leading_char (abfd) == '\0'
860 || (name[0] == bfd_get_symbol_leading_char (abfd)));
862 /* Short circuit for change_leading_char if we can do it in-place. */
863 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
865 name[0] = bfd_get_symbol_leading_char (obfd);
866 bfd_asymbol_name (sym) = name;
867 rem_leading_char = FALSE;
868 add_leading_char = FALSE;
871 /* Remove leading char. */
872 if (rem_leading_char)
873 bfd_asymbol_name (sym) = ++name;
875 /* Add new leading char and/or prefix. */
876 if (add_leading_char || prefix_symbols_string)
878 char *n, *ptr;
880 ptr = n = xmalloc (1 + strlen (prefix_symbols_string)
881 + strlen (name) + 1);
882 if (add_leading_char)
883 *ptr++ = bfd_get_symbol_leading_char (obfd);
885 if (prefix_symbols_string)
887 strcpy (ptr, prefix_symbols_string);
888 ptr += strlen (prefix_symbols_string);
891 strcpy (ptr, name);
892 bfd_asymbol_name (sym) = n;
893 name = n;
896 if (strip_symbols == STRIP_ALL)
897 keep = 0;
898 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
899 || ((flags & BSF_SECTION_SYM) != 0
900 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
901 & BSF_KEEP) != 0))
902 keep = 1;
903 else if (relocatable /* Relocatable file. */
904 && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
905 keep = 1;
906 else if (bfd_decode_symclass (sym) == 'I')
907 /* Global symbols in $idata sections need to be retained
908 even if relocatable is FALSE. External users of the
909 library containing the $idata section may reference these
910 symbols. */
911 keep = 1;
912 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
913 || (flags & BSF_WEAK) != 0
914 || undefined
915 || bfd_is_com_section (bfd_get_section (sym)))
916 keep = strip_symbols != STRIP_UNNEEDED;
917 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
918 keep = (strip_symbols != STRIP_DEBUG
919 && strip_symbols != STRIP_UNNEEDED
920 && ! convert_debugging);
921 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
922 /* COMDAT sections store special information in local
923 symbols, so we cannot risk stripping any of them. */
924 keep = 1;
925 else /* Local symbol. */
926 keep = (strip_symbols != STRIP_UNNEEDED
927 && (discard_locals != LOCALS_ALL
928 && (discard_locals != LOCALS_START_L
929 || ! bfd_is_local_label (abfd, sym))));
931 if (keep && is_specified_symbol (name, strip_specific_list))
932 keep = 0;
933 if (keep
934 && !(flags & BSF_KEEP)
935 && is_specified_symbol (name, strip_unneeded_list))
936 keep = 0;
937 if (!keep
938 && ((keep_file_symbols && (flags & BSF_FILE))
939 || is_specified_symbol (name, keep_specific_list)))
940 keep = 1;
941 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
942 keep = 0;
944 if (keep)
946 if ((flags & BSF_GLOBAL) != 0
947 && (weaken || is_specified_symbol (name, weaken_specific_list)))
949 sym->flags &= ~ BSF_GLOBAL;
950 sym->flags |= BSF_WEAK;
953 if (!undefined
954 && (flags & (BSF_GLOBAL | BSF_WEAK))
955 && (is_specified_symbol (name, localize_specific_list)
956 || (keepglobal_specific_list != NULL
957 && ! is_specified_symbol (name, keepglobal_specific_list))))
959 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
960 sym->flags |= BSF_LOCAL;
963 if (!undefined
964 && (flags & BSF_LOCAL)
965 && is_specified_symbol (name, globalize_specific_list))
967 sym->flags &= ~ BSF_LOCAL;
968 sym->flags |= BSF_GLOBAL;
971 to[dst_count++] = sym;
975 to[dst_count] = NULL;
977 return dst_count;
980 /* Find the redefined name of symbol SOURCE. */
982 static const char *
983 lookup_sym_redefinition (const char *source)
985 struct redefine_node *list;
987 for (list = redefine_sym_list; list != NULL; list = list->next)
988 if (strcmp (source, list->source) == 0)
989 return list->target;
991 return source;
994 /* Add a node to a symbol redefine list. */
996 static void
997 redefine_list_append (const char *cause, const char *source, const char *target)
999 struct redefine_node **p;
1000 struct redefine_node *list;
1001 struct redefine_node *new_node;
1003 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1005 if (strcmp (source, list->source) == 0)
1006 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1007 cause, source);
1009 if (strcmp (target, list->target) == 0)
1010 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1011 cause, target);
1014 new_node = xmalloc (sizeof (struct redefine_node));
1016 new_node->source = strdup (source);
1017 new_node->target = strdup (target);
1018 new_node->next = NULL;
1020 *p = new_node;
1023 /* Handle the --redefine-syms option. Read lines containing "old new"
1024 from the file, and add them to the symbol redefine list. */
1026 static void
1027 add_redefine_syms_file (const char *filename)
1029 FILE *file;
1030 char *buf;
1031 size_t bufsize;
1032 size_t len;
1033 size_t outsym_off;
1034 int c, lineno;
1036 file = fopen (filename, "r");
1037 if (file == NULL)
1038 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1039 filename, strerror (errno));
1041 bufsize = 100;
1042 buf = xmalloc (bufsize);
1044 lineno = 1;
1045 c = getc (file);
1046 len = 0;
1047 outsym_off = 0;
1048 while (c != EOF)
1050 /* Collect the input symbol name. */
1051 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1053 if (c == '#')
1054 goto comment;
1055 buf[len++] = c;
1056 if (len >= bufsize)
1058 bufsize *= 2;
1059 buf = xrealloc (buf, bufsize);
1061 c = getc (file);
1063 buf[len++] = '\0';
1064 if (c == EOF)
1065 break;
1067 /* Eat white space between the symbol names. */
1068 while (IS_WHITESPACE (c))
1069 c = getc (file);
1070 if (c == '#' || IS_LINE_TERMINATOR (c))
1071 goto comment;
1072 if (c == EOF)
1073 break;
1075 /* Collect the output symbol name. */
1076 outsym_off = len;
1077 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1079 if (c == '#')
1080 goto comment;
1081 buf[len++] = c;
1082 if (len >= bufsize)
1084 bufsize *= 2;
1085 buf = xrealloc (buf, bufsize);
1087 c = getc (file);
1089 buf[len++] = '\0';
1090 if (c == EOF)
1091 break;
1093 /* Eat white space at end of line. */
1094 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1095 c = getc (file);
1096 if (c == '#')
1097 goto comment;
1098 /* Handle \r\n. */
1099 if ((c == '\r' && (c = getc (file)) == '\n')
1100 || c == '\n' || c == EOF)
1102 end_of_line:
1103 /* Append the redefinition to the list. */
1104 if (buf[0] != '\0')
1105 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1107 lineno++;
1108 len = 0;
1109 outsym_off = 0;
1110 if (c == EOF)
1111 break;
1112 c = getc (file);
1113 continue;
1115 else
1116 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1117 comment:
1118 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1119 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1120 buf[len++] = '\0';
1122 /* Eat the rest of the line and finish it. */
1123 while (c != '\n' && c != EOF)
1124 c = getc (file);
1125 goto end_of_line;
1128 if (len != 0)
1129 fatal (_("%s:%d: premature end of file"), filename, lineno);
1131 free (buf);
1134 /* Copy unkown object file IBFD onto OBFD.
1135 Returns TRUE upon success, FALSE otherwise. */
1137 static bfd_boolean
1138 copy_unknown_object (bfd *ibfd, bfd *obfd)
1140 char *cbuf;
1141 int tocopy;
1142 long ncopied;
1143 long size;
1144 struct stat buf;
1146 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1148 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1149 return FALSE;
1152 size = buf.st_size;
1153 if (size < 0)
1155 non_fatal (_("stat returns negative size for `%s'"),
1156 bfd_get_archive_filename (ibfd));
1157 return FALSE;
1160 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1162 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1163 return FALSE;
1166 if (verbose)
1167 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1168 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1170 cbuf = xmalloc (BUFSIZE);
1171 ncopied = 0;
1172 while (ncopied < size)
1174 tocopy = size - ncopied;
1175 if (tocopy > BUFSIZE)
1176 tocopy = BUFSIZE;
1178 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1179 != (bfd_size_type) tocopy)
1181 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1182 free (cbuf);
1183 return FALSE;
1186 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1187 != (bfd_size_type) tocopy)
1189 bfd_nonfatal (bfd_get_filename (obfd));
1190 free (cbuf);
1191 return FALSE;
1194 ncopied += tocopy;
1197 chmod (bfd_get_filename (obfd), buf.st_mode);
1198 free (cbuf);
1199 return TRUE;
1202 /* Copy object file IBFD onto OBFD.
1203 Returns TRUE upon success, FALSE otherwise. */
1205 static bfd_boolean
1206 copy_object (bfd *ibfd, bfd *obfd)
1208 bfd_vma start;
1209 long symcount;
1210 asection **osections = NULL;
1211 asection *gnu_debuglink_section = NULL;
1212 bfd_size_type *gaps = NULL;
1213 bfd_size_type max_gap = 0;
1214 long symsize;
1215 void *dhandle;
1216 enum bfd_architecture iarch;
1217 unsigned int imach;
1219 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1220 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1221 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1222 fatal (_("Unable to change endianness of input file(s)"));
1224 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1226 bfd_nonfatal (bfd_get_filename (obfd));
1227 return FALSE;
1230 if (verbose)
1231 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1232 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1233 bfd_get_filename (obfd), bfd_get_target (obfd));
1235 if (set_start_set)
1236 start = set_start;
1237 else
1238 start = bfd_get_start_address (ibfd);
1239 start += change_start;
1241 /* Neither the start address nor the flags
1242 need to be set for a core file. */
1243 if (bfd_get_format (obfd) != bfd_core)
1245 flagword flags;
1247 flags = bfd_get_file_flags (ibfd);
1248 flags |= bfd_flags_to_set;
1249 flags &= ~bfd_flags_to_clear;
1250 flags &= bfd_applicable_file_flags (obfd);
1252 if (!bfd_set_start_address (obfd, start)
1253 || !bfd_set_file_flags (obfd, flags))
1255 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1256 return FALSE;
1260 /* Copy architecture of input file to output file. */
1261 iarch = bfd_get_arch (ibfd);
1262 imach = bfd_get_mach (ibfd);
1263 if (!bfd_set_arch_mach (obfd, iarch, imach)
1264 && (ibfd->target_defaulted
1265 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1267 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1268 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1269 bfd_get_archive_filename (ibfd));
1270 else
1271 non_fatal (_("Warning: Output file cannot represent architecture `%s'"),
1272 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1273 bfd_get_mach (ibfd)));
1274 return FALSE;
1277 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1279 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1280 return FALSE;
1283 if (isympp)
1284 free (isympp);
1286 if (osympp != isympp)
1287 free (osympp);
1289 /* BFD mandates that all output sections be created and sizes set before
1290 any output is done. Thus, we traverse all sections multiple times. */
1291 bfd_map_over_sections (ibfd, setup_section, obfd);
1293 setup_bfd_headers (ibfd, obfd);
1295 if (add_sections != NULL)
1297 struct section_add *padd;
1298 struct section_list *pset;
1300 for (padd = add_sections; padd != NULL; padd = padd->next)
1302 flagword flags;
1304 pset = find_section_list (padd->name, FALSE);
1305 if (pset != NULL)
1306 pset->used = TRUE;
1308 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1309 if (pset != NULL && pset->set_flags)
1310 flags = pset->flags | SEC_HAS_CONTENTS;
1312 padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
1313 if (padd->section == NULL)
1315 non_fatal (_("can't create section `%s': %s"),
1316 padd->name, bfd_errmsg (bfd_get_error ()));
1317 return FALSE;
1320 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1322 bfd_nonfatal (bfd_get_filename (obfd));
1323 return FALSE;
1326 if (pset != NULL)
1328 if (pset->change_vma != CHANGE_IGNORE)
1329 if (! bfd_set_section_vma (obfd, padd->section,
1330 pset->vma_val))
1332 bfd_nonfatal (bfd_get_filename (obfd));
1333 return FALSE;
1336 if (pset->change_lma != CHANGE_IGNORE)
1338 padd->section->lma = pset->lma_val;
1340 if (! bfd_set_section_alignment
1341 (obfd, padd->section,
1342 bfd_section_alignment (obfd, padd->section)))
1344 bfd_nonfatal (bfd_get_filename (obfd));
1345 return FALSE;
1352 if (gnu_debuglink_filename != NULL)
1354 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1355 (obfd, gnu_debuglink_filename);
1357 if (gnu_debuglink_section == NULL)
1359 bfd_nonfatal (gnu_debuglink_filename);
1360 return FALSE;
1364 if (bfd_count_sections (obfd) == 0)
1366 non_fatal (_("there are no sections to be copied!"));
1367 return FALSE;
1370 if (gap_fill_set || pad_to_set)
1372 asection **set;
1373 unsigned int c, i;
1375 /* We must fill in gaps between the sections and/or we must pad
1376 the last section to a specified address. We do this by
1377 grabbing a list of the sections, sorting them by VMA, and
1378 increasing the section sizes as required to fill the gaps.
1379 We write out the gap contents below. */
1381 c = bfd_count_sections (obfd);
1382 osections = xmalloc (c * sizeof (asection *));
1383 set = osections;
1384 bfd_map_over_sections (obfd, get_sections, &set);
1386 qsort (osections, c, sizeof (asection *), compare_section_lma);
1388 gaps = xmalloc (c * sizeof (bfd_size_type));
1389 memset (gaps, 0, c * sizeof (bfd_size_type));
1391 if (gap_fill_set)
1393 for (i = 0; i < c - 1; i++)
1395 flagword flags;
1396 bfd_size_type size;
1397 bfd_vma gap_start, gap_stop;
1399 flags = bfd_get_section_flags (obfd, osections[i]);
1400 if ((flags & SEC_HAS_CONTENTS) == 0
1401 || (flags & SEC_LOAD) == 0)
1402 continue;
1404 size = bfd_section_size (obfd, osections[i]);
1405 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1406 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1407 if (gap_start < gap_stop)
1409 if (! bfd_set_section_size (obfd, osections[i],
1410 size + (gap_stop - gap_start)))
1412 non_fatal (_("Can't fill gap after %s: %s"),
1413 bfd_get_section_name (obfd, osections[i]),
1414 bfd_errmsg (bfd_get_error ()));
1415 status = 1;
1416 break;
1418 gaps[i] = gap_stop - gap_start;
1419 if (max_gap < gap_stop - gap_start)
1420 max_gap = gap_stop - gap_start;
1425 if (pad_to_set)
1427 bfd_vma lma;
1428 bfd_size_type size;
1430 lma = bfd_section_lma (obfd, osections[c - 1]);
1431 size = bfd_section_size (obfd, osections[c - 1]);
1432 if (lma + size < pad_to)
1434 if (! bfd_set_section_size (obfd, osections[c - 1],
1435 pad_to - lma))
1437 non_fatal (_("Can't add padding to %s: %s"),
1438 bfd_get_section_name (obfd, osections[c - 1]),
1439 bfd_errmsg (bfd_get_error ()));
1440 status = 1;
1442 else
1444 gaps[c - 1] = pad_to - (lma + size);
1445 if (max_gap < pad_to - (lma + size))
1446 max_gap = pad_to - (lma + size);
1452 /* Symbol filtering must happen after the output sections
1453 have been created, but before their contents are set. */
1454 dhandle = NULL;
1455 symsize = bfd_get_symtab_upper_bound (ibfd);
1456 if (symsize < 0)
1458 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1459 return FALSE;
1462 osympp = isympp = xmalloc (symsize);
1463 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1464 if (symcount < 0)
1466 bfd_nonfatal (bfd_get_filename (ibfd));
1467 return FALSE;
1470 if (convert_debugging)
1471 dhandle = read_debugging_info (ibfd, isympp, symcount);
1473 if (strip_symbols == STRIP_DEBUG
1474 || strip_symbols == STRIP_ALL
1475 || strip_symbols == STRIP_UNNEEDED
1476 || strip_symbols == STRIP_NONDEBUG
1477 || discard_locals != LOCALS_UNDEF
1478 || strip_specific_list != NULL
1479 || keep_specific_list != NULL
1480 || localize_specific_list != NULL
1481 || globalize_specific_list != NULL
1482 || keepglobal_specific_list != NULL
1483 || weaken_specific_list != NULL
1484 || prefix_symbols_string
1485 || sections_removed
1486 || sections_copied
1487 || convert_debugging
1488 || change_leading_char
1489 || remove_leading_char
1490 || redefine_sym_list
1491 || weaken)
1493 /* Mark symbols used in output relocations so that they
1494 are kept, even if they are local labels or static symbols.
1496 Note we iterate over the input sections examining their
1497 relocations since the relocations for the output sections
1498 haven't been set yet. mark_symbols_used_in_relocations will
1499 ignore input sections which have no corresponding output
1500 section. */
1501 if (strip_symbols != STRIP_ALL)
1502 bfd_map_over_sections (ibfd,
1503 mark_symbols_used_in_relocations,
1504 isympp);
1505 osympp = xmalloc ((symcount + 1) * sizeof (asymbol *));
1506 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1509 if (convert_debugging && dhandle != NULL)
1511 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1513 status = 1;
1514 return FALSE;
1518 bfd_set_symtab (obfd, osympp, symcount);
1520 /* This has to happen after the symbol table has been set. */
1521 bfd_map_over_sections (ibfd, copy_section, obfd);
1523 if (add_sections != NULL)
1525 struct section_add *padd;
1527 for (padd = add_sections; padd != NULL; padd = padd->next)
1529 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1530 0, padd->size))
1532 bfd_nonfatal (bfd_get_filename (obfd));
1533 return FALSE;
1538 if (gnu_debuglink_filename != NULL)
1540 if (! bfd_fill_in_gnu_debuglink_section
1541 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
1543 bfd_nonfatal (gnu_debuglink_filename);
1544 return FALSE;
1548 if (gap_fill_set || pad_to_set)
1550 bfd_byte *buf;
1551 int c, i;
1553 /* Fill in the gaps. */
1554 if (max_gap > 8192)
1555 max_gap = 8192;
1556 buf = xmalloc (max_gap);
1557 memset (buf, gap_fill, max_gap);
1559 c = bfd_count_sections (obfd);
1560 for (i = 0; i < c; i++)
1562 if (gaps[i] != 0)
1564 bfd_size_type left;
1565 file_ptr off;
1567 left = gaps[i];
1568 off = bfd_section_size (obfd, osections[i]) - left;
1570 while (left > 0)
1572 bfd_size_type now;
1574 if (left > 8192)
1575 now = 8192;
1576 else
1577 now = left;
1579 if (! bfd_set_section_contents (obfd, osections[i], buf,
1580 off, now))
1582 bfd_nonfatal (bfd_get_filename (obfd));
1583 return FALSE;
1586 left -= now;
1587 off += now;
1593 /* Allow the BFD backend to copy any private data it understands
1594 from the input BFD to the output BFD. This is done last to
1595 permit the routine to look at the filtered symbol table, which is
1596 important for the ECOFF code at least. */
1597 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
1598 && strip_symbols == STRIP_NONDEBUG)
1599 /* Do not copy the private data when creating an ELF format
1600 debug info file. We do not want the program headers. */
1602 else if (! bfd_copy_private_bfd_data (ibfd, obfd))
1604 non_fatal (_("%s: error copying private BFD data: %s"),
1605 bfd_get_filename (obfd),
1606 bfd_errmsg (bfd_get_error ()));
1607 return FALSE;
1610 /* Switch to the alternate machine code. We have to do this at the
1611 very end, because we only initialize the header when we create
1612 the first section. */
1613 if (use_alt_mach_code != 0
1614 && ! bfd_alt_mach_code (obfd, use_alt_mach_code))
1615 non_fatal (_("unknown alternate machine code, ignored"));
1617 return TRUE;
1620 #undef MKDIR
1621 #if defined (_WIN32) && !defined (__CYGWIN32__)
1622 #define MKDIR(DIR, MODE) mkdir (DIR)
1623 #else
1624 #define MKDIR(DIR, MODE) mkdir (DIR, MODE)
1625 #endif
1627 /* Read each archive element in turn from IBFD, copy the
1628 contents to temp file, and keep the temp file handle. */
1630 static void
1631 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target)
1633 struct name_list
1635 struct name_list *next;
1636 const char *name;
1637 bfd *obfd;
1638 } *list, *l;
1639 bfd **ptr = &obfd->archive_head;
1640 bfd *this_element;
1641 char *dir = make_tempname (bfd_get_filename (obfd));
1643 /* Make a temp directory to hold the contents. */
1644 if (MKDIR (dir, 0700) != 0)
1645 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1646 dir, strerror (errno));
1648 obfd->has_armap = ibfd->has_armap;
1650 list = NULL;
1652 this_element = bfd_openr_next_archived_file (ibfd, NULL);
1654 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1655 RETURN_NONFATAL (bfd_get_filename (obfd));
1657 while (!status && this_element != NULL)
1659 char *output_name;
1660 bfd *output_bfd;
1661 bfd *last_element;
1662 struct stat buf;
1663 int stat_status = 0;
1664 bfd_boolean delete = TRUE;
1666 /* Create an output file for this member. */
1667 output_name = concat (dir, "/",
1668 bfd_get_filename (this_element), (char *) 0);
1670 /* If the file already exists, make another temp dir. */
1671 if (stat (output_name, &buf) >= 0)
1673 output_name = make_tempname (output_name);
1674 if (MKDIR (output_name, 0700) != 0)
1675 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1676 output_name, strerror (errno));
1678 l = xmalloc (sizeof (struct name_list));
1679 l->name = output_name;
1680 l->next = list;
1681 l->obfd = NULL;
1682 list = l;
1683 output_name = concat (output_name, "/",
1684 bfd_get_filename (this_element), (char *) 0);
1687 output_bfd = bfd_openw (output_name, output_target);
1688 if (preserve_dates)
1690 stat_status = bfd_stat_arch_elt (this_element, &buf);
1692 if (stat_status != 0)
1693 non_fatal (_("internal stat error on %s"),
1694 bfd_get_filename (this_element));
1697 l = xmalloc (sizeof (struct name_list));
1698 l->name = output_name;
1699 l->next = list;
1700 l->obfd = NULL;
1701 list = l;
1703 if (output_bfd == NULL)
1704 RETURN_NONFATAL (output_name);
1706 if (bfd_check_format (this_element, bfd_object))
1708 delete = ! copy_object (this_element, output_bfd);
1710 if (! delete
1711 || bfd_get_arch (this_element) != bfd_arch_unknown)
1713 if (!bfd_close (output_bfd))
1715 bfd_nonfatal (bfd_get_filename (output_bfd));
1716 /* Error in new object file. Don't change archive. */
1717 status = 1;
1720 else
1721 goto copy_unknown_element;
1723 else
1725 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1726 bfd_get_archive_filename (this_element));
1728 copy_unknown_element:
1729 delete = !copy_unknown_object (this_element, output_bfd);
1730 if (!bfd_close_all_done (output_bfd))
1732 bfd_nonfatal (bfd_get_filename (output_bfd));
1733 /* Error in new object file. Don't change archive. */
1734 status = 1;
1738 if (delete)
1740 unlink (output_name);
1741 status = 1;
1743 else
1745 if (preserve_dates && stat_status == 0)
1746 set_times (output_name, &buf);
1748 /* Open the newly output file and attach to our list. */
1749 output_bfd = bfd_openr (output_name, output_target);
1751 l->obfd = output_bfd;
1753 *ptr = output_bfd;
1754 ptr = &output_bfd->next;
1756 last_element = this_element;
1758 this_element = bfd_openr_next_archived_file (ibfd, last_element);
1760 bfd_close (last_element);
1763 *ptr = NULL;
1765 if (!bfd_close (obfd))
1766 RETURN_NONFATAL (bfd_get_filename (obfd));
1768 if (!bfd_close (ibfd))
1769 RETURN_NONFATAL (bfd_get_filename (ibfd));
1771 /* Delete all the files that we opened. */
1772 for (l = list; l != NULL; l = l->next)
1774 if (l->obfd == NULL)
1775 rmdir (l->name);
1776 else
1778 bfd_close (l->obfd);
1779 unlink (l->name);
1782 rmdir (dir);
1785 /* The top-level control. */
1787 static void
1788 copy_file (const char *input_filename, const char *output_filename,
1789 const char *input_target, const char *output_target)
1791 bfd *ibfd;
1792 char **obj_matching;
1793 char **core_matching;
1795 if (get_file_size (input_filename) < 1)
1797 non_fatal (_("error: the input file '%s' is empty"), input_filename);
1798 status = 1;
1799 return;
1802 /* To allow us to do "strip *" without dying on the first
1803 non-object file, failures are nonfatal. */
1804 ibfd = bfd_openr (input_filename, input_target);
1805 if (ibfd == NULL)
1806 RETURN_NONFATAL (input_filename);
1808 if (bfd_check_format (ibfd, bfd_archive))
1810 bfd *obfd;
1812 /* bfd_get_target does not return the correct value until
1813 bfd_check_format succeeds. */
1814 if (output_target == NULL)
1815 output_target = bfd_get_target (ibfd);
1817 obfd = bfd_openw (output_filename, output_target);
1818 if (obfd == NULL)
1819 RETURN_NONFATAL (output_filename);
1821 copy_archive (ibfd, obfd, output_target);
1823 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
1825 bfd *obfd;
1826 do_copy:
1828 /* bfd_get_target does not return the correct value until
1829 bfd_check_format succeeds. */
1830 if (output_target == NULL)
1831 output_target = bfd_get_target (ibfd);
1833 obfd = bfd_openw (output_filename, output_target);
1834 if (obfd == NULL)
1835 RETURN_NONFATAL (output_filename);
1837 if (! copy_object (ibfd, obfd))
1838 status = 1;
1840 if (!bfd_close (obfd))
1841 RETURN_NONFATAL (output_filename);
1843 if (!bfd_close (ibfd))
1844 RETURN_NONFATAL (input_filename);
1847 else
1849 bfd_error_type obj_error = bfd_get_error ();
1850 bfd_error_type core_error;
1852 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
1854 /* This probably can't happen.. */
1855 if (obj_error == bfd_error_file_ambiguously_recognized)
1856 free (obj_matching);
1857 goto do_copy;
1860 core_error = bfd_get_error ();
1861 /* Report the object error in preference to the core error. */
1862 if (obj_error != core_error)
1863 bfd_set_error (obj_error);
1865 bfd_nonfatal (input_filename);
1867 if (obj_error == bfd_error_file_ambiguously_recognized)
1869 list_matching_formats (obj_matching);
1870 free (obj_matching);
1872 if (core_error == bfd_error_file_ambiguously_recognized)
1874 list_matching_formats (core_matching);
1875 free (core_matching);
1878 status = 1;
1882 /* Add a name to the section renaming list. */
1884 static void
1885 add_section_rename (const char * old_name, const char * new_name,
1886 flagword flags)
1888 section_rename * rename;
1890 /* Check for conflicts first. */
1891 for (rename = section_rename_list; rename != NULL; rename = rename->next)
1892 if (strcmp (rename->old_name, old_name) == 0)
1894 /* Silently ignore duplicate definitions. */
1895 if (strcmp (rename->new_name, new_name) == 0
1896 && rename->flags == flags)
1897 return;
1899 fatal (_("Multiple renames of section %s"), old_name);
1902 rename = xmalloc (sizeof (* rename));
1904 rename->old_name = old_name;
1905 rename->new_name = new_name;
1906 rename->flags = flags;
1907 rename->next = section_rename_list;
1909 section_rename_list = rename;
1912 /* Check the section rename list for a new name of the input section
1913 ISECTION. Return the new name if one is found.
1914 Also set RETURNED_FLAGS to the flags to be used for this section. */
1916 static const char *
1917 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
1918 flagword * returned_flags)
1920 const char * old_name = bfd_section_name (ibfd, isection);
1921 section_rename * rename;
1923 /* Default to using the flags of the input section. */
1924 * returned_flags = bfd_get_section_flags (ibfd, isection);
1926 for (rename = section_rename_list; rename != NULL; rename = rename->next)
1927 if (strcmp (rename->old_name, old_name) == 0)
1929 if (rename->flags != (flagword) -1)
1930 * returned_flags = rename->flags;
1932 return rename->new_name;
1935 return old_name;
1938 /* Once each of the sections is copied, we may still need to do some
1939 finalization work for private section headers. Do that here. */
1941 static void
1942 setup_bfd_headers (bfd *ibfd, bfd *obfd)
1944 const char *err;
1946 /* Allow the BFD backend to copy any private data it understands
1947 from the input section to the output section. */
1948 if (! bfd_copy_private_header_data (ibfd, obfd))
1950 err = _("private header data");
1951 goto loser;
1954 /* All went well. */
1955 return;
1957 loser:
1958 non_fatal (_("%s: error in %s: %s"),
1959 bfd_get_filename (ibfd),
1960 err, bfd_errmsg (bfd_get_error ()));
1961 status = 1;
1964 /* Create a section in OBFD with the same
1965 name and attributes as ISECTION in IBFD. */
1967 static void
1968 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
1970 bfd *obfd = obfdarg;
1971 struct section_list *p;
1972 sec_ptr osection;
1973 bfd_size_type size;
1974 bfd_vma vma;
1975 bfd_vma lma;
1976 flagword flags;
1977 const char *err;
1978 const char * name;
1979 char *prefix = NULL;
1981 if (is_strip_section (ibfd, isection))
1982 return;
1984 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
1985 if (p != NULL)
1986 p->used = TRUE;
1988 /* Get the, possibly new, name of the output section. */
1989 name = find_section_rename (ibfd, isection, & flags);
1991 /* Prefix sections. */
1992 if ((prefix_alloc_sections_string)
1993 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
1994 prefix = prefix_alloc_sections_string;
1995 else if (prefix_sections_string)
1996 prefix = prefix_sections_string;
1998 if (prefix)
2000 char *n;
2002 n = xmalloc (strlen (prefix) + strlen (name) + 1);
2003 strcpy (n, prefix);
2004 strcat (n, name);
2005 name = n;
2008 if (p != NULL && p->set_flags)
2009 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2010 else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0)
2011 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
2013 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2015 if (osection == NULL)
2017 err = _("making");
2018 goto loser;
2021 if (strip_symbols == STRIP_NONDEBUG
2022 && obfd->xvec->flavour == bfd_target_elf_flavour
2023 && (flags & SEC_ALLOC) != 0
2024 && (p == NULL || !p->set_flags))
2025 elf_section_type (osection) = SHT_NOBITS;
2027 size = bfd_section_size (ibfd, isection);
2028 if (copy_byte >= 0)
2029 size = (size + interleave - 1) / interleave;
2030 if (! bfd_set_section_size (obfd, osection, size))
2032 err = _("size");
2033 goto loser;
2036 vma = bfd_section_vma (ibfd, isection);
2037 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2038 vma += p->vma_val;
2039 else if (p != NULL && p->change_vma == CHANGE_SET)
2040 vma = p->vma_val;
2041 else
2042 vma += change_section_address;
2044 if (! bfd_set_section_vma (obfd, osection, vma))
2046 err = _("vma");
2047 goto loser;
2050 lma = isection->lma;
2051 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2053 if (p->change_lma == CHANGE_MODIFY)
2054 lma += p->lma_val;
2055 else if (p->change_lma == CHANGE_SET)
2056 lma = p->lma_val;
2057 else
2058 abort ();
2060 else
2061 lma += change_section_address;
2063 osection->lma = lma;
2065 /* FIXME: This is probably not enough. If we change the LMA we
2066 may have to recompute the header for the file as well. */
2067 if (!bfd_set_section_alignment (obfd,
2068 osection,
2069 bfd_section_alignment (ibfd, isection)))
2071 err = _("alignment");
2072 goto loser;
2075 /* Copy merge entity size. */
2076 osection->entsize = isection->entsize;
2078 /* This used to be mangle_section; we do here to avoid using
2079 bfd_get_section_by_name since some formats allow multiple
2080 sections with the same name. */
2081 isection->output_section = osection;
2082 isection->output_offset = 0;
2084 /* Allow the BFD backend to copy any private data it understands
2085 from the input section to the output section. */
2086 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
2087 && strip_symbols == STRIP_NONDEBUG)
2088 /* Do not copy the private data when creating an ELF format
2089 debug info file. We do not want the program headers. */
2091 else if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2093 err = _("private data");
2094 goto loser;
2097 /* All went well. */
2098 return;
2100 loser:
2101 non_fatal (_("%s: section `%s': error in %s: %s"),
2102 bfd_get_filename (ibfd),
2103 bfd_section_name (ibfd, isection),
2104 err, bfd_errmsg (bfd_get_error ()));
2105 status = 1;
2108 /* Copy the data of input section ISECTION of IBFD
2109 to an output section with the same name in OBFD.
2110 If stripping then don't copy any relocation info. */
2112 static void
2113 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2115 bfd *obfd = obfdarg;
2116 struct section_list *p;
2117 arelent **relpp;
2118 long relcount;
2119 sec_ptr osection;
2120 bfd_size_type size;
2121 long relsize;
2122 flagword flags;
2124 /* If we have already failed earlier on,
2125 do not keep on generating complaints now. */
2126 if (status != 0)
2127 return;
2129 if (is_strip_section (ibfd, isection))
2130 return;
2132 flags = bfd_get_section_flags (ibfd, isection);
2133 if ((flags & SEC_GROUP) != 0)
2134 return;
2136 osection = isection->output_section;
2137 size = bfd_get_section_size (isection);
2139 if (size == 0 || osection == 0)
2140 return;
2142 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2144 /* Core files do not need to be relocated. */
2145 if (bfd_get_format (obfd) == bfd_core)
2146 relsize = 0;
2147 else
2149 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2151 if (relsize < 0)
2153 /* Do not complain if the target does not support relocations. */
2154 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2155 relsize = 0;
2156 else
2157 RETURN_NONFATAL (bfd_get_filename (ibfd));
2161 if (relsize == 0)
2162 bfd_set_reloc (obfd, osection, NULL, 0);
2163 else
2165 relpp = xmalloc (relsize);
2166 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2167 if (relcount < 0)
2168 RETURN_NONFATAL (bfd_get_filename (ibfd));
2170 if (strip_symbols == STRIP_ALL)
2172 /* Remove relocations which are not in
2173 keep_strip_specific_list. */
2174 arelent **temp_relpp;
2175 long temp_relcount = 0;
2176 long i;
2178 temp_relpp = xmalloc (relsize);
2179 for (i = 0; i < relcount; i++)
2180 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2181 keep_specific_list))
2182 temp_relpp [temp_relcount++] = relpp [i];
2183 relcount = temp_relcount;
2184 free (relpp);
2185 relpp = temp_relpp;
2188 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2189 if (relcount == 0)
2190 free (relpp);
2193 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2194 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2196 void *memhunk = xmalloc (size);
2198 if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
2199 RETURN_NONFATAL (bfd_get_filename (ibfd));
2201 if (copy_byte >= 0)
2203 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2204 char *from = (char *) memhunk + copy_byte;
2205 char *to = memhunk;
2206 char *end = (char *) memhunk + size;
2208 for (; from < end; from += interleave)
2209 *to++ = *from;
2211 size = (size + interleave - 1 - copy_byte) / interleave;
2212 osection->lma /= interleave;
2215 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2216 RETURN_NONFATAL (bfd_get_filename (obfd));
2218 free (memhunk);
2220 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2222 void *memhunk = xmalloc (size);
2224 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2225 flag--they can just remove the section entirely and add it
2226 back again. However, we do permit them to turn on the
2227 SEC_HAS_CONTENTS flag, and take it to mean that the section
2228 contents should be zeroed out. */
2230 memset (memhunk, 0, size);
2231 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2232 RETURN_NONFATAL (bfd_get_filename (obfd));
2233 free (memhunk);
2237 /* Get all the sections. This is used when --gap-fill or --pad-to is
2238 used. */
2240 static void
2241 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
2243 asection ***secppp = secppparg;
2245 **secppp = osection;
2246 ++(*secppp);
2249 /* Sort sections by VMA. This is called via qsort, and is used when
2250 --gap-fill or --pad-to is used. We force non loadable or empty
2251 sections to the front, where they are easier to ignore. */
2253 static int
2254 compare_section_lma (const void *arg1, const void *arg2)
2256 const asection *const *sec1 = arg1;
2257 const asection *const *sec2 = arg2;
2258 flagword flags1, flags2;
2260 /* Sort non loadable sections to the front. */
2261 flags1 = (*sec1)->flags;
2262 flags2 = (*sec2)->flags;
2263 if ((flags1 & SEC_HAS_CONTENTS) == 0
2264 || (flags1 & SEC_LOAD) == 0)
2266 if ((flags2 & SEC_HAS_CONTENTS) != 0
2267 && (flags2 & SEC_LOAD) != 0)
2268 return -1;
2270 else
2272 if ((flags2 & SEC_HAS_CONTENTS) == 0
2273 || (flags2 & SEC_LOAD) == 0)
2274 return 1;
2277 /* Sort sections by LMA. */
2278 if ((*sec1)->lma > (*sec2)->lma)
2279 return 1;
2280 else if ((*sec1)->lma < (*sec2)->lma)
2281 return -1;
2283 /* Sort sections with the same LMA by size. */
2284 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
2285 return 1;
2286 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
2287 return -1;
2289 return 0;
2292 /* Mark all the symbols which will be used in output relocations with
2293 the BSF_KEEP flag so that those symbols will not be stripped.
2295 Ignore relocations which will not appear in the output file. */
2297 static void
2298 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
2300 asymbol **symbols = symbolsarg;
2301 long relsize;
2302 arelent **relpp;
2303 long relcount, i;
2305 /* Ignore an input section with no corresponding output section. */
2306 if (isection->output_section == NULL)
2307 return;
2309 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2310 if (relsize < 0)
2312 /* Do not complain if the target does not support relocations. */
2313 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2314 return;
2315 bfd_fatal (bfd_get_filename (ibfd));
2318 if (relsize == 0)
2319 return;
2321 relpp = xmalloc (relsize);
2322 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2323 if (relcount < 0)
2324 bfd_fatal (bfd_get_filename (ibfd));
2326 /* Examine each symbol used in a relocation. If it's not one of the
2327 special bfd section symbols, then mark it with BSF_KEEP. */
2328 for (i = 0; i < relcount; i++)
2330 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2331 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2332 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2333 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
2336 if (relpp != NULL)
2337 free (relpp);
2340 /* Write out debugging information. */
2342 static bfd_boolean
2343 write_debugging_info (bfd *obfd, void *dhandle,
2344 long *symcountp ATTRIBUTE_UNUSED,
2345 asymbol ***symppp ATTRIBUTE_UNUSED)
2347 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2348 return write_ieee_debugging_info (obfd, dhandle);
2350 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2351 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2353 bfd_byte *syms, *strings;
2354 bfd_size_type symsize, stringsize;
2355 asection *stabsec, *stabstrsec;
2356 flagword flags;
2358 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2359 &symsize, &strings,
2360 &stringsize))
2361 return FALSE;
2363 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2364 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2365 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
2366 if (stabsec == NULL
2367 || stabstrsec == NULL
2368 || ! bfd_set_section_size (obfd, stabsec, symsize)
2369 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2370 || ! bfd_set_section_alignment (obfd, stabsec, 2)
2371 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
2373 non_fatal (_("%s: can't create debugging section: %s"),
2374 bfd_get_filename (obfd),
2375 bfd_errmsg (bfd_get_error ()));
2376 return FALSE;
2379 /* We can get away with setting the section contents now because
2380 the next thing the caller is going to do is copy over the
2381 real sections. We may someday have to split the contents
2382 setting out of this function. */
2383 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
2384 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
2385 stringsize))
2387 non_fatal (_("%s: can't set debugging section contents: %s"),
2388 bfd_get_filename (obfd),
2389 bfd_errmsg (bfd_get_error ()));
2390 return FALSE;
2393 return TRUE;
2396 non_fatal (_("%s: don't know how to write debugging information for %s"),
2397 bfd_get_filename (obfd), bfd_get_target (obfd));
2398 return FALSE;
2401 static int
2402 strip_main (int argc, char *argv[])
2404 char *input_target = NULL;
2405 char *output_target = NULL;
2406 bfd_boolean show_version = FALSE;
2407 bfd_boolean formats_info = FALSE;
2408 int c;
2409 int i;
2410 struct section_list *p;
2411 char *output_file = NULL;
2413 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
2414 strip_options, (int *) 0)) != EOF)
2416 switch (c)
2418 case 'I':
2419 input_target = optarg;
2420 break;
2421 case 'O':
2422 output_target = optarg;
2423 break;
2424 case 'F':
2425 input_target = output_target = optarg;
2426 break;
2427 case 'R':
2428 p = find_section_list (optarg, TRUE);
2429 p->remove = TRUE;
2430 sections_removed = TRUE;
2431 break;
2432 case 's':
2433 strip_symbols = STRIP_ALL;
2434 break;
2435 case 'S':
2436 case 'g':
2437 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
2438 strip_symbols = STRIP_DEBUG;
2439 break;
2440 case OPTION_STRIP_UNNEEDED:
2441 strip_symbols = STRIP_UNNEEDED;
2442 break;
2443 case 'K':
2444 add_specific_symbol (optarg, &keep_specific_list);
2445 break;
2446 case 'N':
2447 add_specific_symbol (optarg, &strip_specific_list);
2448 break;
2449 case 'o':
2450 output_file = optarg;
2451 break;
2452 case 'p':
2453 preserve_dates = TRUE;
2454 break;
2455 case 'x':
2456 discard_locals = LOCALS_ALL;
2457 break;
2458 case 'X':
2459 discard_locals = LOCALS_START_L;
2460 break;
2461 case 'v':
2462 verbose = TRUE;
2463 break;
2464 case 'V':
2465 show_version = TRUE;
2466 break;
2467 case OPTION_FORMATS_INFO:
2468 formats_info = TRUE;
2469 break;
2470 case OPTION_ONLY_KEEP_DEBUG:
2471 strip_symbols = STRIP_NONDEBUG;
2472 break;
2473 case OPTION_KEEP_FILE_SYMBOLS:
2474 keep_file_symbols = 1;
2475 break;
2476 case 0:
2477 /* We've been given a long option. */
2478 break;
2479 case 'w':
2480 wildcard = TRUE;
2481 break;
2482 case 'H':
2483 case 'h':
2484 strip_usage (stdout, 0);
2485 default:
2486 strip_usage (stderr, 1);
2490 if (formats_info)
2492 display_info ();
2493 return 0;
2496 if (show_version)
2497 print_version ("strip");
2499 /* Default is to strip all symbols. */
2500 if (strip_symbols == STRIP_UNDEF
2501 && discard_locals == LOCALS_UNDEF
2502 && strip_specific_list == NULL)
2503 strip_symbols = STRIP_ALL;
2505 if (output_target == NULL)
2506 output_target = input_target;
2508 i = optind;
2509 if (i == argc
2510 || (output_file != NULL && (i + 1) < argc))
2511 strip_usage (stderr, 1);
2513 for (; i < argc; i++)
2515 int hold_status = status;
2516 struct stat statbuf;
2517 char *tmpname;
2519 if (get_file_size (argv[i]) < 1)
2520 continue;
2522 if (preserve_dates)
2523 /* No need to check the return value of stat().
2524 It has already been checked in get_file_size(). */
2525 stat (argv[i], &statbuf);
2527 if (output_file != NULL)
2528 tmpname = output_file;
2529 else
2530 tmpname = make_tempname (argv[i]);
2531 status = 0;
2533 copy_file (argv[i], tmpname, input_target, output_target);
2534 if (status == 0)
2536 if (preserve_dates)
2537 set_times (tmpname, &statbuf);
2538 if (output_file == NULL)
2539 smart_rename (tmpname, argv[i], preserve_dates);
2540 status = hold_status;
2542 else
2543 unlink_if_ordinary (tmpname);
2544 if (output_file == NULL)
2545 free (tmpname);
2548 return 0;
2551 static int
2552 copy_main (int argc, char *argv[])
2554 char * binary_architecture = NULL;
2555 char *input_filename = NULL;
2556 char *output_filename = NULL;
2557 char *input_target = NULL;
2558 char *output_target = NULL;
2559 bfd_boolean show_version = FALSE;
2560 bfd_boolean change_warn = TRUE;
2561 bfd_boolean formats_info = FALSE;
2562 int c;
2563 struct section_list *p;
2564 struct stat statbuf;
2566 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
2567 copy_options, (int *) 0)) != EOF)
2569 switch (c)
2571 case 'b':
2572 copy_byte = atoi (optarg);
2573 if (copy_byte < 0)
2574 fatal (_("byte number must be non-negative"));
2575 break;
2577 case 'B':
2578 binary_architecture = optarg;
2579 break;
2581 case 'i':
2582 interleave = atoi (optarg);
2583 if (interleave < 1)
2584 fatal (_("interleave must be positive"));
2585 break;
2587 case 'I':
2588 case 's': /* "source" - 'I' is preferred */
2589 input_target = optarg;
2590 break;
2592 case 'O':
2593 case 'd': /* "destination" - 'O' is preferred */
2594 output_target = optarg;
2595 break;
2597 case 'F':
2598 input_target = output_target = optarg;
2599 break;
2601 case 'j':
2602 p = find_section_list (optarg, TRUE);
2603 if (p->remove)
2604 fatal (_("%s both copied and removed"), optarg);
2605 p->copy = TRUE;
2606 sections_copied = TRUE;
2607 break;
2609 case 'R':
2610 p = find_section_list (optarg, TRUE);
2611 if (p->copy)
2612 fatal (_("%s both copied and removed"), optarg);
2613 p->remove = TRUE;
2614 sections_removed = TRUE;
2615 break;
2617 case 'S':
2618 strip_symbols = STRIP_ALL;
2619 break;
2621 case 'g':
2622 strip_symbols = STRIP_DEBUG;
2623 break;
2625 case OPTION_STRIP_UNNEEDED:
2626 strip_symbols = STRIP_UNNEEDED;
2627 break;
2629 case OPTION_ONLY_KEEP_DEBUG:
2630 strip_symbols = STRIP_NONDEBUG;
2631 break;
2633 case OPTION_KEEP_FILE_SYMBOLS:
2634 keep_file_symbols = 1;
2635 break;
2637 case OPTION_ADD_GNU_DEBUGLINK:
2638 gnu_debuglink_filename = optarg;
2639 break;
2641 case 'K':
2642 add_specific_symbol (optarg, &keep_specific_list);
2643 break;
2645 case 'N':
2646 add_specific_symbol (optarg, &strip_specific_list);
2647 break;
2649 case OPTION_STRIP_UNNEEDED_SYMBOL:
2650 add_specific_symbol (optarg, &strip_unneeded_list);
2651 break;
2653 case 'L':
2654 add_specific_symbol (optarg, &localize_specific_list);
2655 break;
2657 case OPTION_GLOBALIZE_SYMBOL:
2658 add_specific_symbol (optarg, &globalize_specific_list);
2659 break;
2661 case 'G':
2662 add_specific_symbol (optarg, &keepglobal_specific_list);
2663 break;
2665 case 'W':
2666 add_specific_symbol (optarg, &weaken_specific_list);
2667 break;
2669 case 'p':
2670 preserve_dates = TRUE;
2671 break;
2673 case 'w':
2674 wildcard = TRUE;
2675 break;
2677 case 'x':
2678 discard_locals = LOCALS_ALL;
2679 break;
2681 case 'X':
2682 discard_locals = LOCALS_START_L;
2683 break;
2685 case 'v':
2686 verbose = TRUE;
2687 break;
2689 case 'V':
2690 show_version = TRUE;
2691 break;
2693 case OPTION_FORMATS_INFO:
2694 formats_info = TRUE;
2695 break;
2697 case OPTION_WEAKEN:
2698 weaken = TRUE;
2699 break;
2701 case OPTION_ADD_SECTION:
2703 const char *s;
2704 off_t size;
2705 struct section_add *pa;
2706 int len;
2707 char *name;
2708 FILE *f;
2710 s = strchr (optarg, '=');
2712 if (s == NULL)
2713 fatal (_("bad format for %s"), "--add-section");
2715 size = get_file_size (s + 1);
2716 if (size < 1)
2717 break;
2719 pa = xmalloc (sizeof (struct section_add));
2721 len = s - optarg;
2722 name = xmalloc (len + 1);
2723 strncpy (name, optarg, len);
2724 name[len] = '\0';
2725 pa->name = name;
2727 pa->filename = s + 1;
2728 pa->size = size;
2729 pa->contents = xmalloc (size);
2731 f = fopen (pa->filename, FOPEN_RB);
2733 if (f == NULL)
2734 fatal (_("cannot open: %s: %s"),
2735 pa->filename, strerror (errno));
2737 if (fread (pa->contents, 1, pa->size, f) == 0
2738 || ferror (f))
2739 fatal (_("%s: fread failed"), pa->filename);
2741 fclose (f);
2743 pa->next = add_sections;
2744 add_sections = pa;
2746 break;
2748 case OPTION_CHANGE_START:
2749 change_start = parse_vma (optarg, "--change-start");
2750 break;
2752 case OPTION_CHANGE_SECTION_ADDRESS:
2753 case OPTION_CHANGE_SECTION_LMA:
2754 case OPTION_CHANGE_SECTION_VMA:
2756 const char *s;
2757 int len;
2758 char *name;
2759 char *option = NULL;
2760 bfd_vma val;
2761 enum change_action what = CHANGE_IGNORE;
2763 switch (c)
2765 case OPTION_CHANGE_SECTION_ADDRESS:
2766 option = "--change-section-address";
2767 break;
2768 case OPTION_CHANGE_SECTION_LMA:
2769 option = "--change-section-lma";
2770 break;
2771 case OPTION_CHANGE_SECTION_VMA:
2772 option = "--change-section-vma";
2773 break;
2776 s = strchr (optarg, '=');
2777 if (s == NULL)
2779 s = strchr (optarg, '+');
2780 if (s == NULL)
2782 s = strchr (optarg, '-');
2783 if (s == NULL)
2784 fatal (_("bad format for %s"), option);
2788 len = s - optarg;
2789 name = xmalloc (len + 1);
2790 strncpy (name, optarg, len);
2791 name[len] = '\0';
2793 p = find_section_list (name, TRUE);
2795 val = parse_vma (s + 1, option);
2797 switch (*s)
2799 case '=': what = CHANGE_SET; break;
2800 case '-': val = - val; /* Drop through. */
2801 case '+': what = CHANGE_MODIFY; break;
2804 switch (c)
2806 case OPTION_CHANGE_SECTION_ADDRESS:
2807 p->change_vma = what;
2808 p->vma_val = val;
2809 /* Drop through. */
2811 case OPTION_CHANGE_SECTION_LMA:
2812 p->change_lma = what;
2813 p->lma_val = val;
2814 break;
2816 case OPTION_CHANGE_SECTION_VMA:
2817 p->change_vma = what;
2818 p->vma_val = val;
2819 break;
2822 break;
2824 case OPTION_CHANGE_ADDRESSES:
2825 change_section_address = parse_vma (optarg, "--change-addresses");
2826 change_start = change_section_address;
2827 break;
2829 case OPTION_CHANGE_WARNINGS:
2830 change_warn = TRUE;
2831 break;
2833 case OPTION_CHANGE_LEADING_CHAR:
2834 change_leading_char = TRUE;
2835 break;
2837 case OPTION_DEBUGGING:
2838 convert_debugging = TRUE;
2839 break;
2841 case OPTION_GAP_FILL:
2843 bfd_vma gap_fill_vma;
2845 gap_fill_vma = parse_vma (optarg, "--gap-fill");
2846 gap_fill = (bfd_byte) gap_fill_vma;
2847 if ((bfd_vma) gap_fill != gap_fill_vma)
2849 char buff[20];
2851 sprintf_vma (buff, gap_fill_vma);
2853 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
2854 buff, gap_fill);
2856 gap_fill_set = TRUE;
2858 break;
2860 case OPTION_NO_CHANGE_WARNINGS:
2861 change_warn = FALSE;
2862 break;
2864 case OPTION_PAD_TO:
2865 pad_to = parse_vma (optarg, "--pad-to");
2866 pad_to_set = TRUE;
2867 break;
2869 case OPTION_REMOVE_LEADING_CHAR:
2870 remove_leading_char = TRUE;
2871 break;
2873 case OPTION_REDEFINE_SYM:
2875 /* Push this redefinition onto redefine_symbol_list. */
2877 int len;
2878 const char *s;
2879 const char *nextarg;
2880 char *source, *target;
2882 s = strchr (optarg, '=');
2883 if (s == NULL)
2884 fatal (_("bad format for %s"), "--redefine-sym");
2886 len = s - optarg;
2887 source = xmalloc (len + 1);
2888 strncpy (source, optarg, len);
2889 source[len] = '\0';
2891 nextarg = s + 1;
2892 len = strlen (nextarg);
2893 target = xmalloc (len + 1);
2894 strcpy (target, nextarg);
2896 redefine_list_append ("--redefine-sym", source, target);
2898 free (source);
2899 free (target);
2901 break;
2903 case OPTION_REDEFINE_SYMS:
2904 add_redefine_syms_file (optarg);
2905 break;
2907 case OPTION_SET_SECTION_FLAGS:
2909 const char *s;
2910 int len;
2911 char *name;
2913 s = strchr (optarg, '=');
2914 if (s == NULL)
2915 fatal (_("bad format for %s"), "--set-section-flags");
2917 len = s - optarg;
2918 name = xmalloc (len + 1);
2919 strncpy (name, optarg, len);
2920 name[len] = '\0';
2922 p = find_section_list (name, TRUE);
2924 p->set_flags = TRUE;
2925 p->flags = parse_flags (s + 1);
2927 break;
2929 case OPTION_RENAME_SECTION:
2931 flagword flags;
2932 const char *eq, *fl;
2933 char *old_name;
2934 char *new_name;
2935 unsigned int len;
2937 eq = strchr (optarg, '=');
2938 if (eq == NULL)
2939 fatal (_("bad format for %s"), "--rename-section");
2941 len = eq - optarg;
2942 if (len == 0)
2943 fatal (_("bad format for %s"), "--rename-section");
2945 old_name = xmalloc (len + 1);
2946 strncpy (old_name, optarg, len);
2947 old_name[len] = 0;
2949 eq++;
2950 fl = strchr (eq, ',');
2951 if (fl)
2953 flags = parse_flags (fl + 1);
2954 len = fl - eq;
2956 else
2958 flags = -1;
2959 len = strlen (eq);
2962 if (len == 0)
2963 fatal (_("bad format for %s"), "--rename-section");
2965 new_name = xmalloc (len + 1);
2966 strncpy (new_name, eq, len);
2967 new_name[len] = 0;
2969 add_section_rename (old_name, new_name, flags);
2971 break;
2973 case OPTION_SET_START:
2974 set_start = parse_vma (optarg, "--set-start");
2975 set_start_set = TRUE;
2976 break;
2978 case OPTION_SREC_LEN:
2979 Chunk = parse_vma (optarg, "--srec-len");
2980 break;
2982 case OPTION_SREC_FORCES3:
2983 S3Forced = TRUE;
2984 break;
2986 case OPTION_STRIP_SYMBOLS:
2987 add_specific_symbols (optarg, &strip_specific_list);
2988 break;
2990 case OPTION_STRIP_UNNEEDED_SYMBOLS:
2991 add_specific_symbols (optarg, &strip_unneeded_list);
2992 break;
2994 case OPTION_KEEP_SYMBOLS:
2995 add_specific_symbols (optarg, &keep_specific_list);
2996 break;
2998 case OPTION_LOCALIZE_SYMBOLS:
2999 add_specific_symbols (optarg, &localize_specific_list);
3000 break;
3002 case OPTION_GLOBALIZE_SYMBOLS:
3003 add_specific_symbols (optarg, &globalize_specific_list);
3004 break;
3006 case OPTION_KEEPGLOBAL_SYMBOLS:
3007 add_specific_symbols (optarg, &keepglobal_specific_list);
3008 break;
3010 case OPTION_WEAKEN_SYMBOLS:
3011 add_specific_symbols (optarg, &weaken_specific_list);
3012 break;
3014 case OPTION_ALT_MACH_CODE:
3015 use_alt_mach_code = atoi (optarg);
3016 if (use_alt_mach_code <= 0)
3017 fatal (_("alternate machine code index must be positive"));
3018 break;
3020 case OPTION_PREFIX_SYMBOLS:
3021 prefix_symbols_string = optarg;
3022 break;
3024 case OPTION_PREFIX_SECTIONS:
3025 prefix_sections_string = optarg;
3026 break;
3028 case OPTION_PREFIX_ALLOC_SECTIONS:
3029 prefix_alloc_sections_string = optarg;
3030 break;
3032 case OPTION_READONLY_TEXT:
3033 bfd_flags_to_set |= WP_TEXT;
3034 bfd_flags_to_clear &= ~WP_TEXT;
3035 break;
3037 case OPTION_WRITABLE_TEXT:
3038 bfd_flags_to_clear |= WP_TEXT;
3039 bfd_flags_to_set &= ~WP_TEXT;
3040 break;
3042 case OPTION_PURE:
3043 bfd_flags_to_set |= D_PAGED;
3044 bfd_flags_to_clear &= ~D_PAGED;
3045 break;
3047 case OPTION_IMPURE:
3048 bfd_flags_to_clear |= D_PAGED;
3049 bfd_flags_to_set &= ~D_PAGED;
3050 break;
3052 case 0:
3053 /* We've been given a long option. */
3054 break;
3056 case 'H':
3057 case 'h':
3058 copy_usage (stdout, 0);
3060 default:
3061 copy_usage (stderr, 1);
3065 if (formats_info)
3067 display_info ();
3068 return 0;
3071 if (show_version)
3072 print_version ("objcopy");
3074 if (copy_byte >= interleave)
3075 fatal (_("byte number must be less than interleave"));
3077 if (optind == argc || optind + 2 < argc)
3078 copy_usage (stderr, 1);
3080 input_filename = argv[optind];
3081 if (optind + 1 < argc)
3082 output_filename = argv[optind + 1];
3084 /* Default is to strip no symbols. */
3085 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3086 strip_symbols = STRIP_NONE;
3088 if (output_target == NULL)
3089 output_target = input_target;
3091 if (binary_architecture != NULL)
3093 if (input_target && strcmp (input_target, "binary") == 0)
3095 const bfd_arch_info_type * temp_arch_info;
3097 temp_arch_info = bfd_scan_arch (binary_architecture);
3099 if (temp_arch_info != NULL)
3101 bfd_external_binary_architecture = temp_arch_info->arch;
3102 bfd_external_machine = temp_arch_info->mach;
3104 else
3105 fatal (_("architecture %s unknown"), binary_architecture);
3107 else
3109 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
3110 non_fatal (_(" Argument %s ignored"), binary_architecture);
3114 if (preserve_dates)
3115 if (stat (input_filename, & statbuf) < 0)
3116 fatal (_("warning: could not locate '%s'. System error message: %s"),
3117 input_filename, strerror (errno));
3119 /* If there is no destination file, or the source and destination files
3120 are the same, then create a temp and rename the result into the input. */
3121 if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
3123 char *tmpname = make_tempname (input_filename);
3125 copy_file (input_filename, tmpname, input_target, output_target);
3126 if (status == 0)
3128 if (preserve_dates)
3129 set_times (tmpname, &statbuf);
3130 smart_rename (tmpname, input_filename, preserve_dates);
3132 else
3133 unlink (tmpname);
3135 else
3137 copy_file (input_filename, output_filename, input_target, output_target);
3139 if (status == 0 && preserve_dates)
3140 set_times (output_filename, &statbuf);
3141 else if (status != 0)
3142 unlink_if_ordinary (output_filename);
3145 if (change_warn)
3147 for (p = change_sections; p != NULL; p = p->next)
3149 if (! p->used)
3151 if (p->change_vma != CHANGE_IGNORE)
3153 char buff [20];
3155 sprintf_vma (buff, p->vma_val);
3157 /* xgettext:c-format */
3158 non_fatal (_("%s %s%c0x%s never used"),
3159 "--change-section-vma",
3160 p->name,
3161 p->change_vma == CHANGE_SET ? '=' : '+',
3162 buff);
3165 if (p->change_lma != CHANGE_IGNORE)
3167 char buff [20];
3169 sprintf_vma (buff, p->lma_val);
3171 /* xgettext:c-format */
3172 non_fatal (_("%s %s%c0x%s never used"),
3173 "--change-section-lma",
3174 p->name,
3175 p->change_lma == CHANGE_SET ? '=' : '+',
3176 buff);
3182 return 0;
3186 main (int argc, char *argv[])
3188 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3189 setlocale (LC_MESSAGES, "");
3190 #endif
3191 #if defined (HAVE_SETLOCALE)
3192 setlocale (LC_CTYPE, "");
3193 #endif
3194 bindtextdomain (PACKAGE, LOCALEDIR);
3195 textdomain (PACKAGE);
3197 program_name = argv[0];
3198 xmalloc_set_program_name (program_name);
3200 START_PROGRESS (program_name, 0);
3202 expandargv (&argc, &argv);
3204 strip_symbols = STRIP_UNDEF;
3205 discard_locals = LOCALS_UNDEF;
3207 bfd_init ();
3208 set_default_bfd_target ();
3210 if (is_strip < 0)
3212 int i = strlen (program_name);
3213 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3214 /* Drop the .exe suffix, if any. */
3215 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
3217 i -= 4;
3218 program_name[i] = '\0';
3220 #endif
3221 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
3224 if (is_strip)
3225 strip_main (argc, argv);
3226 else
3227 copy_main (argc, argv);
3229 END_PROGRESS (program_name);
3231 return status;