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, 2007
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
27 #include "libiberty.h"
29 #include "filenames.h"
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
46 /* A list to support redefine_sym. */
51 struct redefine_node *next;
54 typedef struct section_rename
56 const char * old_name;
57 const char * new_name;
59 struct section_rename * next;
63 /* List of sections to be renamed. */
64 static section_rename *section_rename_list;
66 #define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;}
68 static asymbol **isympp = NULL; /* Input symbols. */
69 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
71 /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */
72 static int copy_byte = -1;
73 static int interleave = 4;
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. */
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. */
89 /* Which symbols to remove. */
90 static enum strip_action strip_symbols;
95 LOCALS_START_L, /* Discard locals starting with L. */
96 LOCALS_ALL /* Discard all locals. */
99 /* Which local symbols to remove. Overrides STRIP_ALL. */
100 static enum locals_action discard_locals;
102 /* What kind of change to perform. */
110 /* Structure used to hold lists of sections and actions to take. */
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. */
126 static struct section_list *change_sections;
128 /* TRUE if some sections are to be removed. */
129 static bfd_boolean sections_removed;
131 /* TRUE if only some sections are to be copied. */
132 static bfd_boolean sections_copied;
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;
139 /* Changes to section addresses. */
140 static bfd_vma change_section_address = 0;
142 /* Filling gaps between sections. */
143 static bfd_boolean gap_fill_set = FALSE;
144 static bfd_byte gap_fill = 0;
146 /* Pad to a given address. */
147 static bfd_boolean pad_to_set = FALSE;
148 static bfd_vma pad_to;
150 /* Use alternative machine code? */
151 static unsigned long use_alt_mach_code = 0;
153 /* Output BFD flags user wants to set or clear */
154 static flagword bfd_flags_to_set;
155 static flagword bfd_flags_to_clear;
157 /* List of sections to add. */
160 /* Next section to add. */
161 struct section_add *next;
162 /* Name of section to add. */
164 /* Name of file holding section contents. */
165 const char *filename;
168 /* Contents of file. */
170 /* BFD section, after it has been added. */
174 /* List of sections to add to the output BFD. */
175 static struct section_add *add_sections;
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;
181 /* Whether to convert debugging information. */
182 static bfd_boolean convert_debugging = FALSE;
184 /* Whether to change the leading character in symbol names. */
185 static bfd_boolean change_leading_char = FALSE;
187 /* Whether to remove the leading character from global symbol names. */
188 static bfd_boolean remove_leading_char = FALSE;
190 /* Whether to permit wildcard in symbol comparison. */
191 static bfd_boolean wildcard = FALSE;
193 /* True if --localize-hidden is in effect. */
194 static bfd_boolean localize_hidden = FALSE;
196 /* List of symbols to strip, keep, localize, keep-global, weaken,
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;
207 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
208 static bfd_boolean weaken = FALSE;
210 /* If this is TRUE, we retain BSF_FILE symbols. */
211 static bfd_boolean keep_file_symbols = FALSE;
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;
218 /* True if --extract-symbol was passed on the command line. */
219 static bfd_boolean extract_symbol = FALSE;
221 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
222 of <reverse_bytes> bytes within each output section. */
223 static int reverse_bytes = 0;
226 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
227 enum command_line_switch
229 OPTION_ADD_SECTION=150,
230 OPTION_CHANGE_ADDRESSES,
231 OPTION_CHANGE_LEADING_CHAR,
233 OPTION_CHANGE_SECTION_ADDRESS,
234 OPTION_CHANGE_SECTION_LMA,
235 OPTION_CHANGE_SECTION_VMA,
236 OPTION_CHANGE_WARNINGS,
239 OPTION_NO_CHANGE_WARNINGS,
241 OPTION_REMOVE_LEADING_CHAR,
242 OPTION_SET_SECTION_FLAGS,
244 OPTION_STRIP_UNNEEDED,
247 OPTION_REDEFINE_SYMS,
250 OPTION_STRIP_SYMBOLS,
251 OPTION_STRIP_UNNEEDED_SYMBOL,
252 OPTION_STRIP_UNNEEDED_SYMBOLS,
254 OPTION_LOCALIZE_HIDDEN,
255 OPTION_LOCALIZE_SYMBOLS,
256 OPTION_GLOBALIZE_SYMBOL,
257 OPTION_GLOBALIZE_SYMBOLS,
258 OPTION_KEEPGLOBAL_SYMBOLS,
259 OPTION_WEAKEN_SYMBOLS,
260 OPTION_RENAME_SECTION,
261 OPTION_ALT_MACH_CODE,
262 OPTION_PREFIX_SYMBOLS,
263 OPTION_PREFIX_SECTIONS,
264 OPTION_PREFIX_ALLOC_SECTIONS,
266 OPTION_ADD_GNU_DEBUGLINK,
267 OPTION_ONLY_KEEP_DEBUG,
268 OPTION_KEEP_FILE_SYMBOLS,
269 OPTION_READONLY_TEXT,
270 OPTION_WRITABLE_TEXT,
273 OPTION_EXTRACT_SYMBOL,
277 /* Options to handle if running as "strip". */
279 static struct option strip_options[] =
281 {"discard-all", no_argument, 0, 'x'},
282 {"discard-locals", no_argument, 0, 'X'},
283 {"format", required_argument, 0, 'F'}, /* Obsolete */
284 {"help", no_argument, 0, 'h'},
285 {"info", no_argument, 0, OPTION_FORMATS_INFO},
286 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
287 {"input-target", required_argument, 0, 'I'},
288 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
289 {"keep-symbol", required_argument, 0, 'K'},
290 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
291 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
292 {"output-target", required_argument, 0, 'O'},
293 {"output-file", required_argument, 0, 'o'},
294 {"preserve-dates", no_argument, 0, 'p'},
295 {"remove-section", required_argument, 0, 'R'},
296 {"strip-all", no_argument, 0, 's'},
297 {"strip-debug", no_argument, 0, 'S'},
298 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
299 {"strip-symbol", required_argument, 0, 'N'},
300 {"target", required_argument, 0, 'F'},
301 {"verbose", no_argument, 0, 'v'},
302 {"version", no_argument, 0, 'V'},
303 {"wildcard", no_argument, 0, 'w'},
304 {0, no_argument, 0, 0}
307 /* Options to handle if running as "objcopy". */
309 static struct option copy_options[] =
311 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
312 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
313 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
314 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
315 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
316 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
317 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
318 {"binary-architecture", required_argument, 0, 'B'},
319 {"byte", required_argument, 0, 'b'},
320 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
321 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
322 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
323 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
324 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
325 {"change-start", required_argument, 0, OPTION_CHANGE_START},
326 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
327 {"debugging", no_argument, 0, OPTION_DEBUGGING},
328 {"discard-all", no_argument, 0, 'x'},
329 {"discard-locals", no_argument, 0, 'X'},
330 {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
331 {"format", required_argument, 0, 'F'}, /* Obsolete */
332 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
333 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
334 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
335 {"help", no_argument, 0, 'h'},
336 {"impure", no_argument, 0, OPTION_IMPURE},
337 {"info", no_argument, 0, OPTION_FORMATS_INFO},
338 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
339 {"input-target", required_argument, 0, 'I'},
340 {"interleave", required_argument, 0, 'i'},
341 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
342 {"keep-global-symbol", required_argument, 0, 'G'},
343 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
344 {"keep-symbol", required_argument, 0, 'K'},
345 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
346 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
347 {"localize-symbol", required_argument, 0, 'L'},
348 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
349 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
350 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
351 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
352 {"only-section", required_argument, 0, 'j'},
353 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
354 {"output-target", required_argument, 0, 'O'},
355 {"pad-to", required_argument, 0, OPTION_PAD_TO},
356 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
357 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
358 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
359 {"preserve-dates", no_argument, 0, 'p'},
360 {"pure", no_argument, 0, OPTION_PURE},
361 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
362 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
363 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
364 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
365 {"remove-section", required_argument, 0, 'R'},
366 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
367 {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
368 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
369 {"set-start", required_argument, 0, OPTION_SET_START},
370 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
371 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
372 {"strip-all", no_argument, 0, 'S'},
373 {"strip-debug", no_argument, 0, 'g'},
374 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
375 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
376 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
377 {"strip-symbol", required_argument, 0, 'N'},
378 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
379 {"target", required_argument, 0, 'F'},
380 {"verbose", no_argument, 0, 'v'},
381 {"version", no_argument, 0, 'V'},
382 {"weaken", no_argument, 0, OPTION_WEAKEN},
383 {"weaken-symbol", required_argument, 0, 'W'},
384 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
385 {"wildcard", no_argument, 0, 'w'},
386 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
387 {0, no_argument, 0, 0}
391 extern char *program_name;
393 /* This flag distinguishes between strip and objcopy:
394 1 means this is 'strip'; 0 means this is 'objcopy'.
395 -1 means if we should use argv[0] to decide. */
398 /* The maximum length of an S record. This variable is declared in srec.c
399 and can be modified by the --srec-len parameter. */
400 extern unsigned int Chunk;
402 /* Restrict the generation of Srecords to type S3 only.
403 This variable is declare in bfd/srec.c and can be toggled
404 on by the --srec-forceS3 command line switch. */
405 extern bfd_boolean S3Forced;
407 /* Defined in bfd/binary.c. Used to set architecture and machine of input
409 extern enum bfd_architecture bfd_external_binary_architecture;
410 extern unsigned long bfd_external_machine;
412 /* Forward declarations. */
413 static void setup_section (bfd *, asection *, void *);
414 static void setup_bfd_headers (bfd *, bfd *);
415 static void copy_section (bfd *, asection *, void *);
416 static void get_sections (bfd *, asection *, void *);
417 static int compare_section_lma (const void *, const void *);
418 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
419 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
420 static const char *lookup_sym_redefinition (const char *);
423 copy_usage (FILE *stream, int exit_status)
425 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
426 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
427 fprintf (stream, _(" The options are:\n"));
428 fprintf (stream, _("\
429 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
430 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
431 -B --binary-architecture <arch> Set arch of output file, when input is binary\n\
432 -F --target <bfdname> Set both input and output format to <bfdname>\n\
433 --debugging Convert debugging information, if possible\n\
434 -p --preserve-dates Copy modified/access timestamps to the output\n\
435 -j --only-section <name> Only copy section <name> into the output\n\
436 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
437 -R --remove-section <name> Remove section <name> from the output\n\
438 -S --strip-all Remove all symbol and relocation information\n\
439 -g --strip-debug Remove all debugging symbols & sections\n\
440 --strip-unneeded Remove all symbols not needed by relocations\n\
441 -N --strip-symbol <name> Do not copy symbol <name>\n\
442 --strip-unneeded-symbol <name>\n\
443 Do not copy symbol <name> unless needed by\n\
445 --only-keep-debug Strip everything but the debug information\n\
446 --extract-symbol Remove section contents but keep symbols\n\
447 -K --keep-symbol <name> Do not strip symbol <name>\n\
448 --keep-file-symbols Do not strip file symbol(s)\n\
449 --localize-hidden Turn all ELF hidden symbols into locals\n\
450 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
451 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
452 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
453 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
454 --weaken Force all global symbols to be marked as weak\n\
455 -w --wildcard Permit wildcard in symbol comparison\n\
456 -x --discard-all Remove all non-global symbols\n\
457 -X --discard-locals Remove any compiler-generated symbols\n\
458 -i --interleave <number> Only copy one out of every <number> bytes\n\
459 -b --byte <num> Select byte <num> in every interleaved block\n\
460 --gap-fill <val> Fill gaps between sections with <val>\n\
461 --pad-to <addr> Pad the last section up to address <addr>\n\
462 --set-start <addr> Set the start address to <addr>\n\
463 {--change-start|--adjust-start} <incr>\n\
464 Add <incr> to the start address\n\
465 {--change-addresses|--adjust-vma} <incr>\n\
466 Add <incr> to LMA, VMA and start addresses\n\
467 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
468 Change LMA and VMA of section <name> by <val>\n\
469 --change-section-lma <name>{=|+|-}<val>\n\
470 Change the LMA of section <name> by <val>\n\
471 --change-section-vma <name>{=|+|-}<val>\n\
472 Change the VMA of section <name> by <val>\n\
473 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
474 Warn if a named section does not exist\n\
475 --set-section-flags <name>=<flags>\n\
476 Set section <name>'s properties to <flags>\n\
477 --add-section <name>=<file> Add section <name> found in <file> to output\n\
478 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
479 --change-leading-char Force output format's leading character style\n\
480 --remove-leading-char Remove leading character from global symbols\n\
481 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
482 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
483 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
485 --srec-len <number> Restrict the length of generated Srecords\n\
486 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
487 --strip-symbols <file> -N for all symbols listed in <file>\n\
488 --strip-unneeded-symbols <file>\n\
489 --strip-unneeded-symbol for all symbols listed\n\
491 --keep-symbols <file> -K for all symbols listed in <file>\n\
492 --localize-symbols <file> -L for all symbols listed in <file>\n\
493 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
494 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
495 --weaken-symbols <file> -W for all symbols listed in <file>\n\
496 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
497 --writable-text Mark the output text as writable\n\
498 --readonly-text Make the output text write protected\n\
499 --pure Mark the output file as demand paged\n\
500 --impure Mark the output file as impure\n\
501 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
502 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
503 --prefix-alloc-sections <prefix>\n\
504 Add <prefix> to start of every allocatable\n\
506 -v --verbose List all object files modified\n\
507 @<file> Read options from <file>\n\
508 -V --version Display this program's version number\n\
509 -h --help Display this output\n\
510 --info List object formats & architectures supported\n\
512 list_supported_targets (program_name, stream);
513 if (REPORT_BUGS_TO[0] && exit_status == 0)
514 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
519 strip_usage (FILE *stream, int exit_status)
521 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
522 fprintf (stream, _(" Removes symbols and sections from files\n"));
523 fprintf (stream, _(" The options are:\n"));
524 fprintf (stream, _("\
525 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
526 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
527 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
528 -p --preserve-dates Copy modified/access timestamps to the output\n\
529 -R --remove-section=<name> Remove section <name> from the output\n\
530 -s --strip-all Remove all symbol and relocation information\n\
531 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
532 --strip-unneeded Remove all symbols not needed by relocations\n\
533 --only-keep-debug Strip everything but the debug information\n\
534 -N --strip-symbol=<name> Do not copy symbol <name>\n\
535 -K --keep-symbol=<name> Do not strip symbol <name>\n\
536 --keep-file-symbols Do not strip file symbol(s)\n\
537 -w --wildcard Permit wildcard in symbol comparison\n\
538 -x --discard-all Remove all non-global symbols\n\
539 -X --discard-locals Remove any compiler-generated symbols\n\
540 -v --verbose List all object files modified\n\
541 -V --version Display this program's version number\n\
542 -h --help Display this output\n\
543 --info List object formats & architectures supported\n\
544 -o <file> Place stripped output into <file>\n\
547 list_supported_targets (program_name, stream);
548 if (REPORT_BUGS_TO[0] && exit_status == 0)
549 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
553 /* Parse section flags into a flagword, with a fatal error if the
554 string can't be parsed. */
557 parse_flags (const char *s)
567 snext = strchr (s, ',');
577 #define PARSE_FLAG(fname,fval) \
578 else if (strncasecmp (fname, s, len) == 0) ret |= fval
579 PARSE_FLAG ("alloc", SEC_ALLOC);
580 PARSE_FLAG ("load", SEC_LOAD);
581 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
582 PARSE_FLAG ("readonly", SEC_READONLY);
583 PARSE_FLAG ("debug", SEC_DEBUGGING);
584 PARSE_FLAG ("code", SEC_CODE);
585 PARSE_FLAG ("data", SEC_DATA);
586 PARSE_FLAG ("rom", SEC_ROM);
587 PARSE_FLAG ("share", SEC_COFF_SHARED);
588 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
594 copy = xmalloc (len + 1);
595 strncpy (copy, s, len);
597 non_fatal (_("unrecognized section flag `%s'"), copy);
598 fatal (_("supported flags: %s"),
599 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
609 /* Find and optionally add an entry in the change_sections list. */
611 static struct section_list *
612 find_section_list (const char *name, bfd_boolean add)
614 struct section_list *p;
616 for (p = change_sections; p != NULL; p = p->next)
617 if (strcmp (p->name, name) == 0)
623 p = xmalloc (sizeof (struct section_list));
628 p->change_vma = CHANGE_IGNORE;
629 p->change_lma = CHANGE_IGNORE;
632 p->set_flags = FALSE;
635 p->next = change_sections;
641 /* Add a symbol to strip_specific_list. */
644 add_specific_symbol (const char *name, struct symlist **list)
646 struct symlist *tmp_list;
648 tmp_list = xmalloc (sizeof (struct symlist));
649 tmp_list->name = name;
650 tmp_list->next = *list;
654 /* Add symbols listed in `filename' to strip_specific_list. */
656 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
657 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
660 add_specific_symbols (const char *filename, struct symlist **list)
666 unsigned int line_count;
668 size = get_file_size (filename);
675 buffer = xmalloc (size + 2);
676 f = fopen (filename, FOPEN_RT);
678 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
680 if (fread (buffer, 1, size, f) == 0 || ferror (f))
681 fatal (_("%s: fread failed"), filename);
684 buffer [size] = '\n';
685 buffer [size + 1] = '\0';
689 for (line = buffer; * line != '\0'; line ++)
694 int finished = FALSE;
696 for (eol = line;; eol ++)
702 /* Cope with \n\r. */
710 /* Cope with \r\n. */
721 /* Line comment, Terminate the line here, in case a
722 name is present and then allow the rest of the
723 loop to find the real end of the line. */
735 /* A name may now exist somewhere between 'line' and 'eol'.
736 Strip off leading whitespace and trailing whitespace,
737 then add it to the list. */
738 for (name = line; IS_WHITESPACE (* name); name ++)
740 for (name_end = name;
741 (! IS_WHITESPACE (* name_end))
742 && (! IS_LINE_TERMINATOR (* name_end));
746 if (! IS_LINE_TERMINATOR (* name_end))
750 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
753 if (! IS_LINE_TERMINATOR (* extra))
754 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
755 filename, line_count);
761 add_specific_symbol (name, list);
763 /* Advance line pointer to end of line. The 'eol ++' in the for
764 loop above will then advance us to the start of the next line. */
770 /* See whether a symbol should be stripped or kept based on
771 strip_specific_list and keep_symbols. */
774 is_specified_symbol (const char *name, struct symlist *list)
776 struct symlist *tmp_list;
780 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
781 if (*(tmp_list->name) != '!')
783 if (!fnmatch (tmp_list->name, name, 0))
788 if (fnmatch (tmp_list->name + 1, name, 0))
794 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
795 if (strcmp (name, tmp_list->name) == 0)
802 /* Return a pointer to the symbol used as a signature for GROUP. */
805 group_signature (asection *group)
807 bfd *abfd = group->owner;
808 Elf_Internal_Shdr *ghdr;
810 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
813 ghdr = &elf_section_data (group)->this_hdr;
814 if (ghdr->sh_link < elf_numsections (abfd))
816 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
817 Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
819 if (symhdr->sh_type == SHT_SYMTAB
820 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
821 return isympp[ghdr->sh_info - 1];
826 /* See if a section is being removed. */
829 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
831 if (sections_removed || sections_copied)
833 struct section_list *p;
835 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE);
837 if (sections_removed && p != NULL && p->remove)
839 if (sections_copied && (p == NULL || ! p->copy))
843 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
845 if (strip_symbols == STRIP_DEBUG
846 || strip_symbols == STRIP_UNNEEDED
847 || strip_symbols == STRIP_ALL
848 || discard_locals == LOCALS_ALL
849 || convert_debugging)
852 if (strip_symbols == STRIP_NONDEBUG)
856 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
862 Group sections look like debugging sections but they are not.
863 (They have a non-zero size but they are not ALLOCated). */
864 if (strip_symbols == STRIP_NONDEBUG)
868 If we are going to strip the group signature symbol, then
869 strip the group section too. */
870 gsym = group_signature (sec);
875 if ((strip_symbols == STRIP_ALL
876 && !is_specified_symbol (gname, keep_specific_list))
877 || is_specified_symbol (gname, strip_specific_list))
884 /* Return true if SYM is a hidden symbol. */
887 is_hidden_symbol (asymbol *sym)
889 elf_symbol_type *elf_sym;
891 elf_sym = elf_symbol_from (sym->the_bfd, sym);
893 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
902 /* Choose which symbol entries to copy; put the result in OSYMS.
903 We don't copy in place, because that confuses the relocs.
904 Return the number of symbols to print. */
907 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
908 asymbol **isyms, long symcount)
910 asymbol **from = isyms, **to = osyms;
911 long src_count = 0, dst_count = 0;
912 int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
915 for (; src_count < symcount; src_count++)
917 asymbol *sym = from[src_count];
918 flagword flags = sym->flags;
919 char *name = (char *) bfd_asymbol_name (sym);
921 bfd_boolean used_in_reloc = FALSE;
922 bfd_boolean undefined;
923 bfd_boolean rem_leading_char;
924 bfd_boolean add_leading_char;
926 undefined = bfd_is_und_section (bfd_get_section (sym));
928 if (redefine_sym_list)
930 char *old_name, *new_name;
932 old_name = (char *) bfd_asymbol_name (sym);
933 new_name = (char *) lookup_sym_redefinition (old_name);
934 bfd_asymbol_name (sym) = new_name;
938 /* Check if we will remove the current leading character. */
940 (name[0] == bfd_get_symbol_leading_char (abfd))
941 && (change_leading_char
942 || (remove_leading_char
943 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
945 || bfd_is_com_section (bfd_get_section (sym)))));
947 /* Check if we will add a new leading character. */
950 && (bfd_get_symbol_leading_char (obfd) != '\0')
951 && (bfd_get_symbol_leading_char (abfd) == '\0'
952 || (name[0] == bfd_get_symbol_leading_char (abfd)));
954 /* Short circuit for change_leading_char if we can do it in-place. */
955 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
957 name[0] = bfd_get_symbol_leading_char (obfd);
958 bfd_asymbol_name (sym) = name;
959 rem_leading_char = FALSE;
960 add_leading_char = FALSE;
963 /* Remove leading char. */
964 if (rem_leading_char)
965 bfd_asymbol_name (sym) = ++name;
967 /* Add new leading char and/or prefix. */
968 if (add_leading_char || prefix_symbols_string)
972 ptr = n = xmalloc (1 + strlen (prefix_symbols_string)
973 + strlen (name) + 1);
974 if (add_leading_char)
975 *ptr++ = bfd_get_symbol_leading_char (obfd);
977 if (prefix_symbols_string)
979 strcpy (ptr, prefix_symbols_string);
980 ptr += strlen (prefix_symbols_string);
984 bfd_asymbol_name (sym) = n;
988 if (strip_symbols == STRIP_ALL)
990 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
991 || ((flags & BSF_SECTION_SYM) != 0
992 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
996 used_in_reloc = TRUE;
998 else if (relocatable /* Relocatable file. */
999 && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
1001 else if (bfd_decode_symclass (sym) == 'I')
1002 /* Global symbols in $idata sections need to be retained
1003 even if relocatable is FALSE. External users of the
1004 library containing the $idata section may reference these
1007 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1008 || (flags & BSF_WEAK) != 0
1010 || bfd_is_com_section (bfd_get_section (sym)))
1011 keep = strip_symbols != STRIP_UNNEEDED;
1012 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1013 keep = (strip_symbols != STRIP_DEBUG
1014 && strip_symbols != STRIP_UNNEEDED
1015 && ! convert_debugging);
1016 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
1017 /* COMDAT sections store special information in local
1018 symbols, so we cannot risk stripping any of them. */
1020 else /* Local symbol. */
1021 keep = (strip_symbols != STRIP_UNNEEDED
1022 && (discard_locals != LOCALS_ALL
1023 && (discard_locals != LOCALS_START_L
1024 || ! bfd_is_local_label (abfd, sym))));
1026 if (keep && is_specified_symbol (name, strip_specific_list))
1028 /* There are multiple ways to set 'keep' above, but if it
1029 was the relocatable symbol case, then that's an error. */
1032 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1040 && !(flags & BSF_KEEP)
1041 && is_specified_symbol (name, strip_unneeded_list))
1045 && ((keep_file_symbols && (flags & BSF_FILE))
1046 || is_specified_symbol (name, keep_specific_list)))
1049 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
1054 if ((flags & BSF_GLOBAL) != 0
1055 && (weaken || is_specified_symbol (name, weaken_specific_list)))
1057 sym->flags &= ~ BSF_GLOBAL;
1058 sym->flags |= BSF_WEAK;
1062 && (flags & (BSF_GLOBAL | BSF_WEAK))
1063 && (is_specified_symbol (name, localize_specific_list)
1064 || (keepglobal_specific_list != NULL
1065 && ! is_specified_symbol (name, keepglobal_specific_list))
1066 || (localize_hidden && is_hidden_symbol (sym))))
1068 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1069 sym->flags |= BSF_LOCAL;
1073 && (flags & BSF_LOCAL)
1074 && is_specified_symbol (name, globalize_specific_list))
1076 sym->flags &= ~ BSF_LOCAL;
1077 sym->flags |= BSF_GLOBAL;
1080 to[dst_count++] = sym;
1084 to[dst_count] = NULL;
1089 /* Find the redefined name of symbol SOURCE. */
1092 lookup_sym_redefinition (const char *source)
1094 struct redefine_node *list;
1096 for (list = redefine_sym_list; list != NULL; list = list->next)
1097 if (strcmp (source, list->source) == 0)
1098 return list->target;
1103 /* Add a node to a symbol redefine list. */
1106 redefine_list_append (const char *cause, const char *source, const char *target)
1108 struct redefine_node **p;
1109 struct redefine_node *list;
1110 struct redefine_node *new_node;
1112 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1114 if (strcmp (source, list->source) == 0)
1115 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1118 if (strcmp (target, list->target) == 0)
1119 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1123 new_node = xmalloc (sizeof (struct redefine_node));
1125 new_node->source = strdup (source);
1126 new_node->target = strdup (target);
1127 new_node->next = NULL;
1132 /* Handle the --redefine-syms option. Read lines containing "old new"
1133 from the file, and add them to the symbol redefine list. */
1136 add_redefine_syms_file (const char *filename)
1145 file = fopen (filename, "r");
1147 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1148 filename, strerror (errno));
1151 buf = xmalloc (bufsize);
1159 /* Collect the input symbol name. */
1160 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1168 buf = xrealloc (buf, bufsize);
1176 /* Eat white space between the symbol names. */
1177 while (IS_WHITESPACE (c))
1179 if (c == '#' || IS_LINE_TERMINATOR (c))
1184 /* Collect the output symbol name. */
1186 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1194 buf = xrealloc (buf, bufsize);
1202 /* Eat white space at end of line. */
1203 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1208 if ((c == '\r' && (c = getc (file)) == '\n')
1209 || c == '\n' || c == EOF)
1212 /* Append the redefinition to the list. */
1214 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1225 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1227 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1228 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1231 /* Eat the rest of the line and finish it. */
1232 while (c != '\n' && c != EOF)
1238 fatal (_("%s:%d: premature end of file"), filename, lineno);
1243 /* Copy unkown object file IBFD onto OBFD.
1244 Returns TRUE upon success, FALSE otherwise. */
1247 copy_unknown_object (bfd *ibfd, bfd *obfd)
1255 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1257 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1264 non_fatal (_("stat returns negative size for `%s'"),
1265 bfd_get_archive_filename (ibfd));
1269 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1271 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1276 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1277 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1279 cbuf = xmalloc (BUFSIZE);
1281 while (ncopied < size)
1283 tocopy = size - ncopied;
1284 if (tocopy > BUFSIZE)
1287 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1288 != (bfd_size_type) tocopy)
1290 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1295 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1296 != (bfd_size_type) tocopy)
1298 bfd_nonfatal (bfd_get_filename (obfd));
1306 chmod (bfd_get_filename (obfd), buf.st_mode);
1311 /* Copy object file IBFD onto OBFD.
1312 Returns TRUE upon success, FALSE otherwise. */
1315 copy_object (bfd *ibfd, bfd *obfd)
1319 asection **osections = NULL;
1320 asection *gnu_debuglink_section = NULL;
1321 bfd_size_type *gaps = NULL;
1322 bfd_size_type max_gap = 0;
1325 enum bfd_architecture iarch;
1328 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1329 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1330 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1331 fatal (_("Unable to change endianness of input file(s)"));
1333 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1335 bfd_nonfatal (bfd_get_filename (obfd));
1340 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1341 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1342 bfd_get_filename (obfd), bfd_get_target (obfd));
1351 start = bfd_get_start_address (ibfd);
1352 start += change_start;
1355 /* Neither the start address nor the flags
1356 need to be set for a core file. */
1357 if (bfd_get_format (obfd) != bfd_core)
1361 flags = bfd_get_file_flags (ibfd);
1362 flags |= bfd_flags_to_set;
1363 flags &= ~bfd_flags_to_clear;
1364 flags &= bfd_applicable_file_flags (obfd);
1366 if (!bfd_set_start_address (obfd, start)
1367 || !bfd_set_file_flags (obfd, flags))
1369 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1374 /* Copy architecture of input file to output file. */
1375 iarch = bfd_get_arch (ibfd);
1376 imach = bfd_get_mach (ibfd);
1377 if (!bfd_set_arch_mach (obfd, iarch, imach)
1378 && (ibfd->target_defaulted
1379 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1381 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1382 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1383 bfd_get_archive_filename (ibfd));
1385 non_fatal (_("Warning: Output file cannot represent architecture `%s'"),
1386 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1387 bfd_get_mach (ibfd)));
1391 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1393 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1400 if (osympp != isympp)
1406 symsize = bfd_get_symtab_upper_bound (ibfd);
1409 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1413 osympp = isympp = xmalloc (symsize);
1414 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1417 bfd_nonfatal (bfd_get_filename (ibfd));
1421 /* BFD mandates that all output sections be created and sizes set before
1422 any output is done. Thus, we traverse all sections multiple times. */
1423 bfd_map_over_sections (ibfd, setup_section, obfd);
1425 setup_bfd_headers (ibfd, obfd);
1427 if (add_sections != NULL)
1429 struct section_add *padd;
1430 struct section_list *pset;
1432 for (padd = add_sections; padd != NULL; padd = padd->next)
1436 pset = find_section_list (padd->name, FALSE);
1440 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1441 if (pset != NULL && pset->set_flags)
1442 flags = pset->flags | SEC_HAS_CONTENTS;
1444 /* bfd_make_section_with_flags() does not return very helpful
1445 error codes, so check for the most likely user error first. */
1446 if (bfd_get_section_by_name (obfd, padd->name))
1448 non_fatal (_("can't add section '%s' - it already exists!"), padd->name);
1453 padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
1454 if (padd->section == NULL)
1456 non_fatal (_("can't create section `%s': %s"),
1457 padd->name, bfd_errmsg (bfd_get_error ()));
1462 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1464 bfd_nonfatal (bfd_get_filename (obfd));
1470 if (pset->change_vma != CHANGE_IGNORE)
1471 if (! bfd_set_section_vma (obfd, padd->section,
1474 bfd_nonfatal (bfd_get_filename (obfd));
1478 if (pset->change_lma != CHANGE_IGNORE)
1480 padd->section->lma = pset->lma_val;
1482 if (! bfd_set_section_alignment
1483 (obfd, padd->section,
1484 bfd_section_alignment (obfd, padd->section)))
1486 bfd_nonfatal (bfd_get_filename (obfd));
1494 if (gnu_debuglink_filename != NULL)
1496 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1497 (obfd, gnu_debuglink_filename);
1499 if (gnu_debuglink_section == NULL)
1501 bfd_nonfatal (gnu_debuglink_filename);
1505 /* Special processing for PE format files. We
1506 have no way to distinguish PE from COFF here. */
1507 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1509 bfd_vma debuglink_vma;
1510 asection * highest_section;
1513 /* The PE spec requires that all sections be adjacent and sorted
1514 in ascending order of VMA. It also specifies that debug
1515 sections should be last. This is despite the fact that debug
1516 sections are not loaded into memory and so in theory have no
1519 This means that the debuglink section must be given a non-zero
1520 VMA which makes it contiguous with other debug sections. So
1521 walk the current section list, find the section with the
1522 highest VMA and start the debuglink section after that one. */
1523 for (sec = obfd->sections, highest_section = NULL;
1527 && (highest_section == NULL
1528 || sec->vma > highest_section->vma))
1529 highest_section = sec;
1531 if (highest_section)
1532 debuglink_vma = BFD_ALIGN (highest_section->vma
1533 + highest_section->size,
1534 /* FIXME: We ought to be using
1535 COFF_PAGE_SIZE here or maybe
1536 bfd_get_section_alignment() (if it
1537 was set) but since this is for PE
1538 and we know the required alignment
1539 it is easier just to hard code it. */
1542 /* Umm, not sure what to do in this case. */
1543 debuglink_vma = 0x1000;
1545 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1549 if (bfd_count_sections (obfd) != 0
1550 && (gap_fill_set || pad_to_set))
1555 /* We must fill in gaps between the sections and/or we must pad
1556 the last section to a specified address. We do this by
1557 grabbing a list of the sections, sorting them by VMA, and
1558 increasing the section sizes as required to fill the gaps.
1559 We write out the gap contents below. */
1561 c = bfd_count_sections (obfd);
1562 osections = xmalloc (c * sizeof (asection *));
1564 bfd_map_over_sections (obfd, get_sections, &set);
1566 qsort (osections, c, sizeof (asection *), compare_section_lma);
1568 gaps = xmalloc (c * sizeof (bfd_size_type));
1569 memset (gaps, 0, c * sizeof (bfd_size_type));
1573 for (i = 0; i < c - 1; i++)
1577 bfd_vma gap_start, gap_stop;
1579 flags = bfd_get_section_flags (obfd, osections[i]);
1580 if ((flags & SEC_HAS_CONTENTS) == 0
1581 || (flags & SEC_LOAD) == 0)
1584 size = bfd_section_size (obfd, osections[i]);
1585 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1586 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1587 if (gap_start < gap_stop)
1589 if (! bfd_set_section_size (obfd, osections[i],
1590 size + (gap_stop - gap_start)))
1592 non_fatal (_("Can't fill gap after %s: %s"),
1593 bfd_get_section_name (obfd, osections[i]),
1594 bfd_errmsg (bfd_get_error ()));
1598 gaps[i] = gap_stop - gap_start;
1599 if (max_gap < gap_stop - gap_start)
1600 max_gap = gap_stop - gap_start;
1610 lma = bfd_section_lma (obfd, osections[c - 1]);
1611 size = bfd_section_size (obfd, osections[c - 1]);
1612 if (lma + size < pad_to)
1614 if (! bfd_set_section_size (obfd, osections[c - 1],
1617 non_fatal (_("Can't add padding to %s: %s"),
1618 bfd_get_section_name (obfd, osections[c - 1]),
1619 bfd_errmsg (bfd_get_error ()));
1624 gaps[c - 1] = pad_to - (lma + size);
1625 if (max_gap < pad_to - (lma + size))
1626 max_gap = pad_to - (lma + size);
1632 /* Symbol filtering must happen after the output sections
1633 have been created, but before their contents are set. */
1635 if (convert_debugging)
1636 dhandle = read_debugging_info (ibfd, isympp, symcount);
1638 if (strip_symbols == STRIP_DEBUG
1639 || strip_symbols == STRIP_ALL
1640 || strip_symbols == STRIP_UNNEEDED
1641 || strip_symbols == STRIP_NONDEBUG
1642 || discard_locals != LOCALS_UNDEF
1644 || strip_specific_list != NULL
1645 || keep_specific_list != NULL
1646 || localize_specific_list != NULL
1647 || globalize_specific_list != NULL
1648 || keepglobal_specific_list != NULL
1649 || weaken_specific_list != NULL
1650 || prefix_symbols_string
1653 || convert_debugging
1654 || change_leading_char
1655 || remove_leading_char
1656 || redefine_sym_list
1659 /* Mark symbols used in output relocations so that they
1660 are kept, even if they are local labels or static symbols.
1662 Note we iterate over the input sections examining their
1663 relocations since the relocations for the output sections
1664 haven't been set yet. mark_symbols_used_in_relocations will
1665 ignore input sections which have no corresponding output
1667 if (strip_symbols != STRIP_ALL)
1668 bfd_map_over_sections (ibfd,
1669 mark_symbols_used_in_relocations,
1671 osympp = xmalloc ((symcount + 1) * sizeof (asymbol *));
1672 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1675 if (convert_debugging && dhandle != NULL)
1677 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1684 bfd_set_symtab (obfd, osympp, symcount);
1686 /* This has to happen after the symbol table has been set. */
1687 bfd_map_over_sections (ibfd, copy_section, obfd);
1689 if (add_sections != NULL)
1691 struct section_add *padd;
1693 for (padd = add_sections; padd != NULL; padd = padd->next)
1695 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1698 bfd_nonfatal (bfd_get_filename (obfd));
1704 if (gnu_debuglink_filename != NULL)
1706 if (! bfd_fill_in_gnu_debuglink_section
1707 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
1709 bfd_nonfatal (gnu_debuglink_filename);
1714 if (gap_fill_set || pad_to_set)
1719 /* Fill in the gaps. */
1722 buf = xmalloc (max_gap);
1723 memset (buf, gap_fill, max_gap);
1725 c = bfd_count_sections (obfd);
1726 for (i = 0; i < c; i++)
1734 off = bfd_section_size (obfd, osections[i]) - left;
1745 if (! bfd_set_section_contents (obfd, osections[i], buf,
1748 bfd_nonfatal (bfd_get_filename (obfd));
1759 /* Do not copy backend data if --extract-symbol is passed; anything
1760 that needs to look at the section contents will fail. */
1764 /* Allow the BFD backend to copy any private data it understands
1765 from the input BFD to the output BFD. This is done last to
1766 permit the routine to look at the filtered symbol table, which is
1767 important for the ECOFF code at least. */
1768 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
1769 && strip_symbols == STRIP_NONDEBUG)
1770 /* Do not copy the private data when creating an ELF format
1771 debug info file. We do not want the program headers. */
1773 else if (! bfd_copy_private_bfd_data (ibfd, obfd))
1775 non_fatal (_("%s: error copying private BFD data: %s"),
1776 bfd_get_filename (obfd),
1777 bfd_errmsg (bfd_get_error ()));
1781 /* Switch to the alternate machine code. We have to do this at the
1782 very end, because we only initialize the header when we create
1783 the first section. */
1784 if (use_alt_mach_code != 0)
1786 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
1788 non_fatal (_("this target does not support %lu alternative machine codes"),
1790 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
1792 non_fatal (_("treating that number as an absolute e_machine value instead"));
1793 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
1796 non_fatal (_("ignoring the alternative value"));
1803 /* Read each archive element in turn from IBFD, copy the
1804 contents to temp file, and keep the temp file handle.
1805 If 'force_output_target' is TRUE then make sure that
1806 all elements in the new archive are of the type
1810 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
1811 bfd_boolean force_output_target)
1815 struct name_list *next;
1819 bfd **ptr = &obfd->archive_head;
1823 /* Make a temp directory to hold the contents. */
1824 dir = make_tempdir (bfd_get_filename (obfd));
1826 fatal (_("cannot create tempdir for archive copying (error: %s)"),
1829 obfd->has_armap = ibfd->has_armap;
1833 this_element = bfd_openr_next_archived_file (ibfd, NULL);
1835 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1836 RETURN_NONFATAL (bfd_get_filename (obfd));
1838 while (!status && this_element != NULL)
1844 int stat_status = 0;
1845 bfd_boolean delete = TRUE;
1847 /* Create an output file for this member. */
1848 output_name = concat (dir, "/",
1849 bfd_get_filename (this_element), (char *) 0);
1851 /* If the file already exists, make another temp dir. */
1852 if (stat (output_name, &buf) >= 0)
1854 output_name = make_tempdir (output_name);
1855 if (output_name == NULL)
1856 fatal (_("cannot create tempdir for archive copying (error: %s)"),
1859 l = xmalloc (sizeof (struct name_list));
1860 l->name = output_name;
1864 output_name = concat (output_name, "/",
1865 bfd_get_filename (this_element), (char *) 0);
1870 stat_status = bfd_stat_arch_elt (this_element, &buf);
1872 if (stat_status != 0)
1873 non_fatal (_("internal stat error on %s"),
1874 bfd_get_filename (this_element));
1877 l = xmalloc (sizeof (struct name_list));
1878 l->name = output_name;
1883 if (bfd_check_format (this_element, bfd_object))
1885 /* PR binutils/3110: Cope with archives
1886 containing multiple target types. */
1887 if (force_output_target)
1888 output_bfd = bfd_openw (output_name, output_target);
1890 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
1892 if (output_bfd == NULL)
1893 RETURN_NONFATAL (output_name);
1895 delete = ! copy_object (this_element, output_bfd);
1898 || bfd_get_arch (this_element) != bfd_arch_unknown)
1900 if (!bfd_close (output_bfd))
1902 bfd_nonfatal (bfd_get_filename (output_bfd));
1903 /* Error in new object file. Don't change archive. */
1908 goto copy_unknown_element;
1912 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1913 bfd_get_archive_filename (this_element));
1915 output_bfd = bfd_openw (output_name, output_target);
1916 copy_unknown_element:
1917 delete = !copy_unknown_object (this_element, output_bfd);
1918 if (!bfd_close_all_done (output_bfd))
1920 bfd_nonfatal (bfd_get_filename (output_bfd));
1921 /* Error in new object file. Don't change archive. */
1928 unlink (output_name);
1933 if (preserve_dates && stat_status == 0)
1934 set_times (output_name, &buf);
1936 /* Open the newly output file and attach to our list. */
1937 output_bfd = bfd_openr (output_name, output_target);
1939 l->obfd = output_bfd;
1942 ptr = &output_bfd->next;
1944 last_element = this_element;
1946 this_element = bfd_openr_next_archived_file (ibfd, last_element);
1948 bfd_close (last_element);
1953 if (!bfd_close (obfd))
1954 RETURN_NONFATAL (bfd_get_filename (obfd));
1956 if (!bfd_close (ibfd))
1957 RETURN_NONFATAL (bfd_get_filename (ibfd));
1959 /* Delete all the files that we opened. */
1960 for (l = list; l != NULL; l = l->next)
1962 if (l->obfd == NULL)
1966 bfd_close (l->obfd);
1973 /* The top-level control. */
1976 copy_file (const char *input_filename, const char *output_filename,
1977 const char *input_target, const char *output_target)
1980 char **obj_matching;
1981 char **core_matching;
1983 if (get_file_size (input_filename) < 1)
1989 /* To allow us to do "strip *" without dying on the first
1990 non-object file, failures are nonfatal. */
1991 ibfd = bfd_openr (input_filename, input_target);
1993 RETURN_NONFATAL (input_filename);
1995 if (bfd_check_format (ibfd, bfd_archive))
1997 bfd_boolean force_output_target;
2000 /* bfd_get_target does not return the correct value until
2001 bfd_check_format succeeds. */
2002 if (output_target == NULL)
2004 output_target = bfd_get_target (ibfd);
2005 force_output_target = FALSE;
2008 force_output_target = TRUE;
2010 obfd = bfd_openw (output_filename, output_target);
2012 RETURN_NONFATAL (output_filename);
2014 copy_archive (ibfd, obfd, output_target, force_output_target);
2016 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
2021 /* bfd_get_target does not return the correct value until
2022 bfd_check_format succeeds. */
2023 if (output_target == NULL)
2024 output_target = bfd_get_target (ibfd);
2026 obfd = bfd_openw (output_filename, output_target);
2028 RETURN_NONFATAL (output_filename);
2030 if (! copy_object (ibfd, obfd))
2033 if (!bfd_close (obfd))
2034 RETURN_NONFATAL (output_filename);
2036 if (!bfd_close (ibfd))
2037 RETURN_NONFATAL (input_filename);
2042 bfd_error_type obj_error = bfd_get_error ();
2043 bfd_error_type core_error;
2045 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2047 /* This probably can't happen.. */
2048 if (obj_error == bfd_error_file_ambiguously_recognized)
2049 free (obj_matching);
2053 core_error = bfd_get_error ();
2054 /* Report the object error in preference to the core error. */
2055 if (obj_error != core_error)
2056 bfd_set_error (obj_error);
2058 bfd_nonfatal (input_filename);
2060 if (obj_error == bfd_error_file_ambiguously_recognized)
2062 list_matching_formats (obj_matching);
2063 free (obj_matching);
2065 if (core_error == bfd_error_file_ambiguously_recognized)
2067 list_matching_formats (core_matching);
2068 free (core_matching);
2075 /* Add a name to the section renaming list. */
2078 add_section_rename (const char * old_name, const char * new_name,
2081 section_rename * rename;
2083 /* Check for conflicts first. */
2084 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2085 if (strcmp (rename->old_name, old_name) == 0)
2087 /* Silently ignore duplicate definitions. */
2088 if (strcmp (rename->new_name, new_name) == 0
2089 && rename->flags == flags)
2092 fatal (_("Multiple renames of section %s"), old_name);
2095 rename = xmalloc (sizeof (* rename));
2097 rename->old_name = old_name;
2098 rename->new_name = new_name;
2099 rename->flags = flags;
2100 rename->next = section_rename_list;
2102 section_rename_list = rename;
2105 /* Check the section rename list for a new name of the input section
2106 ISECTION. Return the new name if one is found.
2107 Also set RETURNED_FLAGS to the flags to be used for this section. */
2110 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2111 flagword * returned_flags)
2113 const char * old_name = bfd_section_name (ibfd, isection);
2114 section_rename * rename;
2116 /* Default to using the flags of the input section. */
2117 * returned_flags = bfd_get_section_flags (ibfd, isection);
2119 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2120 if (strcmp (rename->old_name, old_name) == 0)
2122 if (rename->flags != (flagword) -1)
2123 * returned_flags = rename->flags;
2125 return rename->new_name;
2131 /* Once each of the sections is copied, we may still need to do some
2132 finalization work for private section headers. Do that here. */
2135 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2139 /* Allow the BFD backend to copy any private data it understands
2140 from the input section to the output section. */
2141 if (! bfd_copy_private_header_data (ibfd, obfd))
2143 err = _("private header data");
2147 /* All went well. */
2151 non_fatal (_("%s: error in %s: %s"),
2152 bfd_get_filename (ibfd),
2153 err, bfd_errmsg (bfd_get_error ()));
2157 /* Create a section in OBFD with the same
2158 name and attributes as ISECTION in IBFD. */
2161 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2163 bfd *obfd = obfdarg;
2164 struct section_list *p;
2172 char *prefix = NULL;
2174 if (is_strip_section (ibfd, isection))
2177 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
2181 /* Get the, possibly new, name of the output section. */
2182 name = find_section_rename (ibfd, isection, & flags);
2184 /* Prefix sections. */
2185 if ((prefix_alloc_sections_string)
2186 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2187 prefix = prefix_alloc_sections_string;
2188 else if (prefix_sections_string)
2189 prefix = prefix_sections_string;
2195 n = xmalloc (strlen (prefix) + strlen (name) + 1);
2201 if (p != NULL && p->set_flags)
2202 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2203 else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0)
2204 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
2206 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2208 if (osection == NULL)
2214 if (strip_symbols == STRIP_NONDEBUG
2215 && obfd->xvec->flavour == bfd_target_elf_flavour
2216 && (flags & SEC_ALLOC) != 0
2217 && (p == NULL || !p->set_flags))
2218 elf_section_type (osection) = SHT_NOBITS;
2220 size = bfd_section_size (ibfd, isection);
2222 size = (size + interleave - 1) / interleave;
2223 else if (extract_symbol)
2225 if (! bfd_set_section_size (obfd, osection, size))
2231 vma = bfd_section_vma (ibfd, isection);
2232 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2234 else if (p != NULL && p->change_vma == CHANGE_SET)
2237 vma += change_section_address;
2239 if (! bfd_set_section_vma (obfd, osection, extract_symbol ? 0 : vma))
2245 lma = isection->lma;
2246 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2248 if (p->change_lma == CHANGE_MODIFY)
2250 else if (p->change_lma == CHANGE_SET)
2256 lma += change_section_address;
2258 osection->lma = extract_symbol ? 0 : lma;
2260 /* FIXME: This is probably not enough. If we change the LMA we
2261 may have to recompute the header for the file as well. */
2262 if (!bfd_set_section_alignment (obfd,
2264 bfd_section_alignment (ibfd, isection)))
2266 err = _("alignment");
2270 /* Copy merge entity size. */
2271 osection->entsize = isection->entsize;
2273 /* This used to be mangle_section; we do here to avoid using
2274 bfd_get_section_by_name since some formats allow multiple
2275 sections with the same name. */
2276 isection->output_section = osection;
2277 isection->output_offset = extract_symbol ? vma : 0;
2279 /* Do not copy backend data if --extract-symbol is passed; anything
2280 that needs to look at the section contents will fail. */
2284 /* Allow the BFD backend to copy any private data it understands
2285 from the input section to the output section. */
2286 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
2287 && strip_symbols == STRIP_NONDEBUG)
2288 /* Do not copy the private data when creating an ELF format
2289 debug info file. We do not want the program headers. */
2291 else if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2293 err = _("private data");
2296 else if ((isection->flags & SEC_GROUP) != 0)
2298 asymbol *gsym = group_signature (isection);
2301 gsym->flags |= BSF_KEEP;
2304 /* All went well. */
2308 non_fatal (_("%s: section `%s': error in %s: %s"),
2309 bfd_get_filename (ibfd),
2310 bfd_section_name (ibfd, isection),
2311 err, bfd_errmsg (bfd_get_error ()));
2315 /* Copy the data of input section ISECTION of IBFD
2316 to an output section with the same name in OBFD.
2317 If stripping then don't copy any relocation info. */
2320 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2322 bfd *obfd = obfdarg;
2323 struct section_list *p;
2331 /* If we have already failed earlier on,
2332 do not keep on generating complaints now. */
2336 if (is_strip_section (ibfd, isection))
2339 flags = bfd_get_section_flags (ibfd, isection);
2340 if ((flags & SEC_GROUP) != 0)
2343 osection = isection->output_section;
2344 size = bfd_get_section_size (isection);
2346 if (size == 0 || osection == 0)
2349 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2351 /* Core files do not need to be relocated. */
2352 if (bfd_get_format (obfd) == bfd_core)
2356 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2360 /* Do not complain if the target does not support relocations. */
2361 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2364 RETURN_NONFATAL (bfd_get_filename (ibfd));
2369 bfd_set_reloc (obfd, osection, NULL, 0);
2372 relpp = xmalloc (relsize);
2373 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2375 RETURN_NONFATAL (bfd_get_filename (ibfd));
2377 if (strip_symbols == STRIP_ALL)
2379 /* Remove relocations which are not in
2380 keep_strip_specific_list. */
2381 arelent **temp_relpp;
2382 long temp_relcount = 0;
2385 temp_relpp = xmalloc (relsize);
2386 for (i = 0; i < relcount; i++)
2387 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2388 keep_specific_list))
2389 temp_relpp [temp_relcount++] = relpp [i];
2390 relcount = temp_relcount;
2395 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2403 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2404 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2406 void *memhunk = xmalloc (size);
2408 if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
2409 RETURN_NONFATAL (bfd_get_filename (ibfd));
2413 /* We don't handle leftover bytes (too many possible behaviors,
2414 and we don't know what the user wants). The section length
2415 must be a multiple of the number of bytes to swap. */
2416 if ((size % reverse_bytes) == 0)
2421 for (i = 0; i < size; i += reverse_bytes)
2422 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
2424 bfd_byte *m = (bfd_byte *) memhunk;
2427 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
2428 m[(i + reverse_bytes) - (j + 1)] = b;
2432 /* User must pad the section up in order to do this. */
2433 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
2434 bfd_section_name (ibfd, isection), reverse_bytes);
2439 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2440 char *from = (char *) memhunk + copy_byte;
2442 char *end = (char *) memhunk + size;
2444 for (; from < end; from += interleave)
2447 size = (size + interleave - 1 - copy_byte) / interleave;
2448 osection->lma /= interleave;
2451 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2452 RETURN_NONFATAL (bfd_get_filename (obfd));
2456 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2458 void *memhunk = xmalloc (size);
2460 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2461 flag--they can just remove the section entirely and add it
2462 back again. However, we do permit them to turn on the
2463 SEC_HAS_CONTENTS flag, and take it to mean that the section
2464 contents should be zeroed out. */
2466 memset (memhunk, 0, size);
2467 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2468 RETURN_NONFATAL (bfd_get_filename (obfd));
2473 /* Get all the sections. This is used when --gap-fill or --pad-to is
2477 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
2479 asection ***secppp = secppparg;
2481 **secppp = osection;
2485 /* Sort sections by VMA. This is called via qsort, and is used when
2486 --gap-fill or --pad-to is used. We force non loadable or empty
2487 sections to the front, where they are easier to ignore. */
2490 compare_section_lma (const void *arg1, const void *arg2)
2492 const asection *const *sec1 = arg1;
2493 const asection *const *sec2 = arg2;
2494 flagword flags1, flags2;
2496 /* Sort non loadable sections to the front. */
2497 flags1 = (*sec1)->flags;
2498 flags2 = (*sec2)->flags;
2499 if ((flags1 & SEC_HAS_CONTENTS) == 0
2500 || (flags1 & SEC_LOAD) == 0)
2502 if ((flags2 & SEC_HAS_CONTENTS) != 0
2503 && (flags2 & SEC_LOAD) != 0)
2508 if ((flags2 & SEC_HAS_CONTENTS) == 0
2509 || (flags2 & SEC_LOAD) == 0)
2513 /* Sort sections by LMA. */
2514 if ((*sec1)->lma > (*sec2)->lma)
2516 else if ((*sec1)->lma < (*sec2)->lma)
2519 /* Sort sections with the same LMA by size. */
2520 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
2522 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
2528 /* Mark all the symbols which will be used in output relocations with
2529 the BSF_KEEP flag so that those symbols will not be stripped.
2531 Ignore relocations which will not appear in the output file. */
2534 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
2536 asymbol **symbols = symbolsarg;
2541 /* Ignore an input section with no corresponding output section. */
2542 if (isection->output_section == NULL)
2545 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2548 /* Do not complain if the target does not support relocations. */
2549 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2551 bfd_fatal (bfd_get_filename (ibfd));
2557 relpp = xmalloc (relsize);
2558 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2560 bfd_fatal (bfd_get_filename (ibfd));
2562 /* Examine each symbol used in a relocation. If it's not one of the
2563 special bfd section symbols, then mark it with BSF_KEEP. */
2564 for (i = 0; i < relcount; i++)
2566 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2567 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2568 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2569 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
2576 /* Write out debugging information. */
2579 write_debugging_info (bfd *obfd, void *dhandle,
2580 long *symcountp ATTRIBUTE_UNUSED,
2581 asymbol ***symppp ATTRIBUTE_UNUSED)
2583 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2584 return write_ieee_debugging_info (obfd, dhandle);
2586 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2587 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2589 bfd_byte *syms, *strings;
2590 bfd_size_type symsize, stringsize;
2591 asection *stabsec, *stabstrsec;
2594 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2599 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2600 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2601 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
2603 || stabstrsec == NULL
2604 || ! bfd_set_section_size (obfd, stabsec, symsize)
2605 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2606 || ! bfd_set_section_alignment (obfd, stabsec, 2)
2607 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
2609 non_fatal (_("%s: can't create debugging section: %s"),
2610 bfd_get_filename (obfd),
2611 bfd_errmsg (bfd_get_error ()));
2615 /* We can get away with setting the section contents now because
2616 the next thing the caller is going to do is copy over the
2617 real sections. We may someday have to split the contents
2618 setting out of this function. */
2619 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
2620 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
2623 non_fatal (_("%s: can't set debugging section contents: %s"),
2624 bfd_get_filename (obfd),
2625 bfd_errmsg (bfd_get_error ()));
2632 non_fatal (_("%s: don't know how to write debugging information for %s"),
2633 bfd_get_filename (obfd), bfd_get_target (obfd));
2638 strip_main (int argc, char *argv[])
2640 char *input_target = NULL;
2641 char *output_target = NULL;
2642 bfd_boolean show_version = FALSE;
2643 bfd_boolean formats_info = FALSE;
2646 struct section_list *p;
2647 char *output_file = NULL;
2649 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
2650 strip_options, (int *) 0)) != EOF)
2655 input_target = optarg;
2658 output_target = optarg;
2661 input_target = output_target = optarg;
2664 p = find_section_list (optarg, TRUE);
2666 sections_removed = TRUE;
2669 strip_symbols = STRIP_ALL;
2673 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
2674 strip_symbols = STRIP_DEBUG;
2676 case OPTION_STRIP_UNNEEDED:
2677 strip_symbols = STRIP_UNNEEDED;
2680 add_specific_symbol (optarg, &keep_specific_list);
2683 add_specific_symbol (optarg, &strip_specific_list);
2686 output_file = optarg;
2689 preserve_dates = TRUE;
2692 discard_locals = LOCALS_ALL;
2695 discard_locals = LOCALS_START_L;
2701 show_version = TRUE;
2703 case OPTION_FORMATS_INFO:
2704 formats_info = TRUE;
2706 case OPTION_ONLY_KEEP_DEBUG:
2707 strip_symbols = STRIP_NONDEBUG;
2709 case OPTION_KEEP_FILE_SYMBOLS:
2710 keep_file_symbols = 1;
2713 /* We've been given a long option. */
2720 strip_usage (stdout, 0);
2722 strip_usage (stderr, 1);
2733 print_version ("strip");
2735 /* Default is to strip all symbols. */
2736 if (strip_symbols == STRIP_UNDEF
2737 && discard_locals == LOCALS_UNDEF
2738 && strip_specific_list == NULL)
2739 strip_symbols = STRIP_ALL;
2741 if (output_target == NULL)
2742 output_target = input_target;
2746 || (output_file != NULL && (i + 1) < argc))
2747 strip_usage (stderr, 1);
2749 for (; i < argc; i++)
2751 int hold_status = status;
2752 struct stat statbuf;
2755 if (get_file_size (argv[i]) < 1)
2762 /* No need to check the return value of stat().
2763 It has already been checked in get_file_size(). */
2764 stat (argv[i], &statbuf);
2766 if (output_file != NULL)
2767 tmpname = output_file;
2769 tmpname = make_tempname (argv[i]);
2771 if (tmpname == NULL)
2773 non_fatal (_("could not create temporary file to hold stripped copy of '%s'"),
2780 copy_file (argv[i], tmpname, input_target, output_target);
2784 set_times (tmpname, &statbuf);
2785 if (output_file == NULL)
2786 smart_rename (tmpname, argv[i], preserve_dates);
2787 status = hold_status;
2790 unlink_if_ordinary (tmpname);
2791 if (output_file == NULL)
2799 copy_main (int argc, char *argv[])
2801 char * binary_architecture = NULL;
2802 char *input_filename = NULL;
2803 char *output_filename = NULL;
2804 char *input_target = NULL;
2805 char *output_target = NULL;
2806 bfd_boolean show_version = FALSE;
2807 bfd_boolean change_warn = TRUE;
2808 bfd_boolean formats_info = FALSE;
2810 struct section_list *p;
2811 struct stat statbuf;
2813 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
2814 copy_options, (int *) 0)) != EOF)
2819 copy_byte = atoi (optarg);
2821 fatal (_("byte number must be non-negative"));
2825 binary_architecture = optarg;
2829 interleave = atoi (optarg);
2831 fatal (_("interleave must be positive"));
2835 case 's': /* "source" - 'I' is preferred */
2836 input_target = optarg;
2840 case 'd': /* "destination" - 'O' is preferred */
2841 output_target = optarg;
2845 input_target = output_target = optarg;
2849 p = find_section_list (optarg, TRUE);
2851 fatal (_("%s both copied and removed"), optarg);
2853 sections_copied = TRUE;
2857 p = find_section_list (optarg, TRUE);
2859 fatal (_("%s both copied and removed"), optarg);
2861 sections_removed = TRUE;
2865 strip_symbols = STRIP_ALL;
2869 strip_symbols = STRIP_DEBUG;
2872 case OPTION_STRIP_UNNEEDED:
2873 strip_symbols = STRIP_UNNEEDED;
2876 case OPTION_ONLY_KEEP_DEBUG:
2877 strip_symbols = STRIP_NONDEBUG;
2880 case OPTION_KEEP_FILE_SYMBOLS:
2881 keep_file_symbols = 1;
2884 case OPTION_ADD_GNU_DEBUGLINK:
2885 gnu_debuglink_filename = optarg;
2889 add_specific_symbol (optarg, &keep_specific_list);
2893 add_specific_symbol (optarg, &strip_specific_list);
2896 case OPTION_STRIP_UNNEEDED_SYMBOL:
2897 add_specific_symbol (optarg, &strip_unneeded_list);
2901 add_specific_symbol (optarg, &localize_specific_list);
2904 case OPTION_GLOBALIZE_SYMBOL:
2905 add_specific_symbol (optarg, &globalize_specific_list);
2909 add_specific_symbol (optarg, &keepglobal_specific_list);
2913 add_specific_symbol (optarg, &weaken_specific_list);
2917 preserve_dates = TRUE;
2925 discard_locals = LOCALS_ALL;
2929 discard_locals = LOCALS_START_L;
2937 show_version = TRUE;
2940 case OPTION_FORMATS_INFO:
2941 formats_info = TRUE;
2948 case OPTION_ADD_SECTION:
2952 struct section_add *pa;
2957 s = strchr (optarg, '=');
2960 fatal (_("bad format for %s"), "--add-section");
2962 size = get_file_size (s + 1);
2969 pa = xmalloc (sizeof (struct section_add));
2972 name = xmalloc (len + 1);
2973 strncpy (name, optarg, len);
2977 pa->filename = s + 1;
2979 pa->contents = xmalloc (size);
2981 f = fopen (pa->filename, FOPEN_RB);
2984 fatal (_("cannot open: %s: %s"),
2985 pa->filename, strerror (errno));
2987 if (fread (pa->contents, 1, pa->size, f) == 0
2989 fatal (_("%s: fread failed"), pa->filename);
2993 pa->next = add_sections;
2998 case OPTION_CHANGE_START:
2999 change_start = parse_vma (optarg, "--change-start");
3002 case OPTION_CHANGE_SECTION_ADDRESS:
3003 case OPTION_CHANGE_SECTION_LMA:
3004 case OPTION_CHANGE_SECTION_VMA:
3009 char *option = NULL;
3011 enum change_action what = CHANGE_IGNORE;
3015 case OPTION_CHANGE_SECTION_ADDRESS:
3016 option = "--change-section-address";
3018 case OPTION_CHANGE_SECTION_LMA:
3019 option = "--change-section-lma";
3021 case OPTION_CHANGE_SECTION_VMA:
3022 option = "--change-section-vma";
3026 s = strchr (optarg, '=');
3029 s = strchr (optarg, '+');
3032 s = strchr (optarg, '-');
3034 fatal (_("bad format for %s"), option);
3039 name = xmalloc (len + 1);
3040 strncpy (name, optarg, len);
3043 p = find_section_list (name, TRUE);
3045 val = parse_vma (s + 1, option);
3049 case '=': what = CHANGE_SET; break;
3050 case '-': val = - val; /* Drop through. */
3051 case '+': what = CHANGE_MODIFY; break;
3056 case OPTION_CHANGE_SECTION_ADDRESS:
3057 p->change_vma = what;
3061 case OPTION_CHANGE_SECTION_LMA:
3062 p->change_lma = what;
3066 case OPTION_CHANGE_SECTION_VMA:
3067 p->change_vma = what;
3074 case OPTION_CHANGE_ADDRESSES:
3075 change_section_address = parse_vma (optarg, "--change-addresses");
3076 change_start = change_section_address;
3079 case OPTION_CHANGE_WARNINGS:
3083 case OPTION_CHANGE_LEADING_CHAR:
3084 change_leading_char = TRUE;
3087 case OPTION_DEBUGGING:
3088 convert_debugging = TRUE;
3091 case OPTION_GAP_FILL:
3093 bfd_vma gap_fill_vma;
3095 gap_fill_vma = parse_vma (optarg, "--gap-fill");
3096 gap_fill = (bfd_byte) gap_fill_vma;
3097 if ((bfd_vma) gap_fill != gap_fill_vma)
3101 sprintf_vma (buff, gap_fill_vma);
3103 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3106 gap_fill_set = TRUE;
3110 case OPTION_NO_CHANGE_WARNINGS:
3111 change_warn = FALSE;
3115 pad_to = parse_vma (optarg, "--pad-to");
3119 case OPTION_REMOVE_LEADING_CHAR:
3120 remove_leading_char = TRUE;
3123 case OPTION_REDEFINE_SYM:
3125 /* Push this redefinition onto redefine_symbol_list. */
3129 const char *nextarg;
3130 char *source, *target;
3132 s = strchr (optarg, '=');
3134 fatal (_("bad format for %s"), "--redefine-sym");
3137 source = xmalloc (len + 1);
3138 strncpy (source, optarg, len);
3142 len = strlen (nextarg);
3143 target = xmalloc (len + 1);
3144 strcpy (target, nextarg);
3146 redefine_list_append ("--redefine-sym", source, target);
3153 case OPTION_REDEFINE_SYMS:
3154 add_redefine_syms_file (optarg);
3157 case OPTION_SET_SECTION_FLAGS:
3163 s = strchr (optarg, '=');
3165 fatal (_("bad format for %s"), "--set-section-flags");
3168 name = xmalloc (len + 1);
3169 strncpy (name, optarg, len);
3172 p = find_section_list (name, TRUE);
3174 p->set_flags = TRUE;
3175 p->flags = parse_flags (s + 1);
3179 case OPTION_RENAME_SECTION:
3182 const char *eq, *fl;
3187 eq = strchr (optarg, '=');
3189 fatal (_("bad format for %s"), "--rename-section");
3193 fatal (_("bad format for %s"), "--rename-section");
3195 old_name = xmalloc (len + 1);
3196 strncpy (old_name, optarg, len);
3200 fl = strchr (eq, ',');
3203 flags = parse_flags (fl + 1);
3213 fatal (_("bad format for %s"), "--rename-section");
3215 new_name = xmalloc (len + 1);
3216 strncpy (new_name, eq, len);
3219 add_section_rename (old_name, new_name, flags);
3223 case OPTION_SET_START:
3224 set_start = parse_vma (optarg, "--set-start");
3225 set_start_set = TRUE;
3228 case OPTION_SREC_LEN:
3229 Chunk = parse_vma (optarg, "--srec-len");
3232 case OPTION_SREC_FORCES3:
3236 case OPTION_STRIP_SYMBOLS:
3237 add_specific_symbols (optarg, &strip_specific_list);
3240 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3241 add_specific_symbols (optarg, &strip_unneeded_list);
3244 case OPTION_KEEP_SYMBOLS:
3245 add_specific_symbols (optarg, &keep_specific_list);
3248 case OPTION_LOCALIZE_HIDDEN:
3249 localize_hidden = TRUE;
3252 case OPTION_LOCALIZE_SYMBOLS:
3253 add_specific_symbols (optarg, &localize_specific_list);
3256 case OPTION_GLOBALIZE_SYMBOLS:
3257 add_specific_symbols (optarg, &globalize_specific_list);
3260 case OPTION_KEEPGLOBAL_SYMBOLS:
3261 add_specific_symbols (optarg, &keepglobal_specific_list);
3264 case OPTION_WEAKEN_SYMBOLS:
3265 add_specific_symbols (optarg, &weaken_specific_list);
3268 case OPTION_ALT_MACH_CODE:
3269 use_alt_mach_code = strtoul (optarg, NULL, 0);
3270 if (use_alt_mach_code == 0)
3271 fatal (_("unable to parse alternative machine code"));
3274 case OPTION_PREFIX_SYMBOLS:
3275 prefix_symbols_string = optarg;
3278 case OPTION_PREFIX_SECTIONS:
3279 prefix_sections_string = optarg;
3282 case OPTION_PREFIX_ALLOC_SECTIONS:
3283 prefix_alloc_sections_string = optarg;
3286 case OPTION_READONLY_TEXT:
3287 bfd_flags_to_set |= WP_TEXT;
3288 bfd_flags_to_clear &= ~WP_TEXT;
3291 case OPTION_WRITABLE_TEXT:
3292 bfd_flags_to_clear |= WP_TEXT;
3293 bfd_flags_to_set &= ~WP_TEXT;
3297 bfd_flags_to_set |= D_PAGED;
3298 bfd_flags_to_clear &= ~D_PAGED;
3302 bfd_flags_to_clear |= D_PAGED;
3303 bfd_flags_to_set &= ~D_PAGED;
3306 case OPTION_EXTRACT_SYMBOL:
3307 extract_symbol = TRUE;
3310 case OPTION_REVERSE_BYTES:
3312 int prev = reverse_bytes;
3314 reverse_bytes = atoi (optarg);
3315 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
3316 fatal (_("number of bytes to reverse must be positive and even"));
3318 if (prev && prev != reverse_bytes)
3319 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
3325 /* We've been given a long option. */
3330 copy_usage (stdout, 0);
3333 copy_usage (stderr, 1);
3344 print_version ("objcopy");
3346 if (copy_byte >= interleave)
3347 fatal (_("byte number must be less than interleave"));
3349 if (optind == argc || optind + 2 < argc)
3350 copy_usage (stderr, 1);
3352 input_filename = argv[optind];
3353 if (optind + 1 < argc)
3354 output_filename = argv[optind + 1];
3356 /* Default is to strip no symbols. */
3357 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3358 strip_symbols = STRIP_NONE;
3360 if (output_target == NULL)
3361 output_target = input_target;
3363 if (binary_architecture != NULL)
3365 if (input_target && strcmp (input_target, "binary") == 0)
3367 const bfd_arch_info_type * temp_arch_info;
3369 temp_arch_info = bfd_scan_arch (binary_architecture);
3371 if (temp_arch_info != NULL)
3373 bfd_external_binary_architecture = temp_arch_info->arch;
3374 bfd_external_machine = temp_arch_info->mach;
3377 fatal (_("architecture %s unknown"), binary_architecture);
3381 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
3382 non_fatal (_(" Argument %s ignored"), binary_architecture);
3387 if (stat (input_filename, & statbuf) < 0)
3388 fatal (_("warning: could not locate '%s'. System error message: %s"),
3389 input_filename, strerror (errno));
3391 /* If there is no destination file, or the source and destination files
3392 are the same, then create a temp and rename the result into the input. */
3393 if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
3395 char *tmpname = make_tempname (input_filename);
3397 if (tmpname == NULL)
3398 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
3399 input_filename, strerror (errno));
3401 copy_file (input_filename, tmpname, input_target, output_target);
3405 set_times (tmpname, &statbuf);
3406 smart_rename (tmpname, input_filename, preserve_dates);
3413 copy_file (input_filename, output_filename, input_target, output_target);
3415 if (status == 0 && preserve_dates)
3416 set_times (output_filename, &statbuf);
3417 else if (status != 0)
3418 unlink_if_ordinary (output_filename);
3423 for (p = change_sections; p != NULL; p = p->next)
3427 if (p->change_vma != CHANGE_IGNORE)
3431 sprintf_vma (buff, p->vma_val);
3433 /* xgettext:c-format */
3434 non_fatal (_("%s %s%c0x%s never used"),
3435 "--change-section-vma",
3437 p->change_vma == CHANGE_SET ? '=' : '+',
3441 if (p->change_lma != CHANGE_IGNORE)
3445 sprintf_vma (buff, p->lma_val);
3447 /* xgettext:c-format */
3448 non_fatal (_("%s %s%c0x%s never used"),
3449 "--change-section-lma",
3451 p->change_lma == CHANGE_SET ? '=' : '+',
3462 main (int argc, char *argv[])
3464 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3465 setlocale (LC_MESSAGES, "");
3467 #if defined (HAVE_SETLOCALE)
3468 setlocale (LC_CTYPE, "");
3470 bindtextdomain (PACKAGE, LOCALEDIR);
3471 textdomain (PACKAGE);
3473 program_name = argv[0];
3474 xmalloc_set_program_name (program_name);
3476 START_PROGRESS (program_name, 0);
3478 expandargv (&argc, &argv);
3480 strip_symbols = STRIP_UNDEF;
3481 discard_locals = LOCALS_UNDEF;
3484 set_default_bfd_target ();
3488 int i = strlen (program_name);
3489 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3490 /* Drop the .exe suffix, if any. */
3491 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
3494 program_name[i] = '\0';
3497 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
3501 strip_main (argc, argv);
3503 copy_main (argc, argv);
3505 END_PROGRESS (program_name);