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"
30 #include "filenames.h"
36 /* A list of symbols to explicitly strip out, or to keep. A linked
37 list is good enough for a small number from the command line, but
38 this will slow things down a lot if many symbols are being
47 /* A list to support redefine_sym. */
52 struct redefine_node *next;
55 typedef struct section_rename
57 const char * old_name;
58 const char * new_name;
60 struct section_rename * next;
64 /* List of sections to be renamed. */
65 static section_rename *section_rename_list;
67 #define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;}
69 static asymbol **isympp = NULL; /* Input symbols. */
70 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
72 /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */
73 static int copy_byte = -1;
74 static int interleave = 4;
76 static bfd_boolean verbose; /* Print file and target names. */
77 static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
78 static int status = 0; /* Exit status. */
83 STRIP_NONE, /* Don't strip. */
84 STRIP_DEBUG, /* Strip all debugger symbols. */
85 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
86 STRIP_NONDEBUG, /* Strip everything but debug info. */
87 STRIP_ALL /* Strip all symbols. */
90 /* Which symbols to remove. */
91 static enum strip_action strip_symbols;
96 LOCALS_START_L, /* Discard locals starting with L. */
97 LOCALS_ALL /* Discard all locals. */
100 /* Which local symbols to remove. Overrides STRIP_ALL. */
101 static enum locals_action discard_locals;
103 /* What kind of change to perform. */
111 /* Structure used to hold lists of sections and actions to take. */
114 struct section_list * next; /* Next section to change. */
115 const char * name; /* Section name. */
116 bfd_boolean used; /* Whether this entry was used. */
117 bfd_boolean remove; /* Whether to remove this section. */
118 bfd_boolean copy; /* Whether to copy this section. */
119 enum change_action change_vma;/* Whether to change or set VMA. */
120 bfd_vma vma_val; /* Amount to change by or set to. */
121 enum change_action change_lma;/* Whether to change or set LMA. */
122 bfd_vma lma_val; /* Amount to change by or set to. */
123 bfd_boolean set_flags; /* Whether to set the section flags. */
124 flagword flags; /* What to set the section flags to. */
127 static struct section_list *change_sections;
129 /* TRUE if some sections are to be removed. */
130 static bfd_boolean sections_removed;
132 /* TRUE if only some sections are to be copied. */
133 static bfd_boolean sections_copied;
135 /* Changes to the start address. */
136 static bfd_vma change_start = 0;
137 static bfd_boolean set_start_set = FALSE;
138 static bfd_vma set_start;
140 /* Changes to section addresses. */
141 static bfd_vma change_section_address = 0;
143 /* Filling gaps between sections. */
144 static bfd_boolean gap_fill_set = FALSE;
145 static bfd_byte gap_fill = 0;
147 /* Pad to a given address. */
148 static bfd_boolean pad_to_set = FALSE;
149 static bfd_vma pad_to;
151 /* Use alternative machine code? */
152 static unsigned long use_alt_mach_code = 0;
154 /* Output BFD flags user wants to set or clear */
155 static flagword bfd_flags_to_set;
156 static flagword bfd_flags_to_clear;
158 /* List of sections to add. */
161 /* Next section to add. */
162 struct section_add *next;
163 /* Name of section to add. */
165 /* Name of file holding section contents. */
166 const char *filename;
169 /* Contents of file. */
171 /* BFD section, after it has been added. */
175 /* List of sections to add to the output BFD. */
176 static struct section_add *add_sections;
178 /* If non-NULL the argument to --add-gnu-debuglink.
179 This should be the filename to store in the .gnu_debuglink section. */
180 static const char * gnu_debuglink_filename = NULL;
182 /* Whether to convert debugging information. */
183 static bfd_boolean convert_debugging = FALSE;
185 /* Whether to change the leading character in symbol names. */
186 static bfd_boolean change_leading_char = FALSE;
188 /* Whether to remove the leading character from global symbol names. */
189 static bfd_boolean remove_leading_char = FALSE;
191 /* Whether to permit wildcard in symbol comparison. */
192 static bfd_boolean wildcard = FALSE;
194 /* True if --localize-hidden is in effect. */
195 static bfd_boolean localize_hidden = FALSE;
197 /* List of symbols to strip, keep, localize, keep-global, weaken,
199 static struct symlist *strip_specific_list = NULL;
200 static struct symlist *strip_unneeded_list = NULL;
201 static struct symlist *keep_specific_list = NULL;
202 static struct symlist *localize_specific_list = NULL;
203 static struct symlist *globalize_specific_list = NULL;
204 static struct symlist *keepglobal_specific_list = NULL;
205 static struct symlist *weaken_specific_list = NULL;
206 static struct redefine_node *redefine_sym_list = NULL;
208 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
209 static bfd_boolean weaken = FALSE;
211 /* If this is TRUE, we retain BSF_FILE symbols. */
212 static bfd_boolean keep_file_symbols = FALSE;
214 /* Prefix symbols/sections. */
215 static char *prefix_symbols_string = 0;
216 static char *prefix_sections_string = 0;
217 static char *prefix_alloc_sections_string = 0;
219 /* True if --extract-symbol was passed on the command line. */
220 static bfd_boolean extract_symbol = FALSE;
222 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
223 of <reverse_bytes> bytes within each output section. */
224 static int reverse_bytes = 0;
227 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
228 enum command_line_switch
230 OPTION_ADD_SECTION=150,
231 OPTION_CHANGE_ADDRESSES,
232 OPTION_CHANGE_LEADING_CHAR,
234 OPTION_CHANGE_SECTION_ADDRESS,
235 OPTION_CHANGE_SECTION_LMA,
236 OPTION_CHANGE_SECTION_VMA,
237 OPTION_CHANGE_WARNINGS,
240 OPTION_NO_CHANGE_WARNINGS,
242 OPTION_REMOVE_LEADING_CHAR,
243 OPTION_SET_SECTION_FLAGS,
245 OPTION_STRIP_UNNEEDED,
248 OPTION_REDEFINE_SYMS,
251 OPTION_STRIP_SYMBOLS,
252 OPTION_STRIP_UNNEEDED_SYMBOL,
253 OPTION_STRIP_UNNEEDED_SYMBOLS,
255 OPTION_LOCALIZE_HIDDEN,
256 OPTION_LOCALIZE_SYMBOLS,
257 OPTION_GLOBALIZE_SYMBOL,
258 OPTION_GLOBALIZE_SYMBOLS,
259 OPTION_KEEPGLOBAL_SYMBOLS,
260 OPTION_WEAKEN_SYMBOLS,
261 OPTION_RENAME_SECTION,
262 OPTION_ALT_MACH_CODE,
263 OPTION_PREFIX_SYMBOLS,
264 OPTION_PREFIX_SECTIONS,
265 OPTION_PREFIX_ALLOC_SECTIONS,
267 OPTION_ADD_GNU_DEBUGLINK,
268 OPTION_ONLY_KEEP_DEBUG,
269 OPTION_KEEP_FILE_SYMBOLS,
270 OPTION_READONLY_TEXT,
271 OPTION_WRITABLE_TEXT,
274 OPTION_EXTRACT_SYMBOL,
278 /* Options to handle if running as "strip". */
280 static struct option strip_options[] =
282 {"discard-all", no_argument, 0, 'x'},
283 {"discard-locals", no_argument, 0, 'X'},
284 {"format", required_argument, 0, 'F'}, /* Obsolete */
285 {"help", no_argument, 0, 'h'},
286 {"info", no_argument, 0, OPTION_FORMATS_INFO},
287 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
288 {"input-target", required_argument, 0, 'I'},
289 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
290 {"keep-symbol", required_argument, 0, 'K'},
291 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
292 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
293 {"output-target", required_argument, 0, 'O'},
294 {"output-file", required_argument, 0, 'o'},
295 {"preserve-dates", no_argument, 0, 'p'},
296 {"remove-section", required_argument, 0, 'R'},
297 {"strip-all", no_argument, 0, 's'},
298 {"strip-debug", no_argument, 0, 'S'},
299 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
300 {"strip-symbol", required_argument, 0, 'N'},
301 {"target", required_argument, 0, 'F'},
302 {"verbose", no_argument, 0, 'v'},
303 {"version", no_argument, 0, 'V'},
304 {"wildcard", no_argument, 0, 'w'},
305 {0, no_argument, 0, 0}
308 /* Options to handle if running as "objcopy". */
310 static struct option copy_options[] =
312 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
313 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
314 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
315 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
316 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
317 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
318 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
319 {"binary-architecture", required_argument, 0, 'B'},
320 {"byte", required_argument, 0, 'b'},
321 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
322 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
323 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
324 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
325 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
326 {"change-start", required_argument, 0, OPTION_CHANGE_START},
327 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
328 {"debugging", no_argument, 0, OPTION_DEBUGGING},
329 {"discard-all", no_argument, 0, 'x'},
330 {"discard-locals", no_argument, 0, 'X'},
331 {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
332 {"format", required_argument, 0, 'F'}, /* Obsolete */
333 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
334 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
335 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
336 {"help", no_argument, 0, 'h'},
337 {"impure", no_argument, 0, OPTION_IMPURE},
338 {"info", no_argument, 0, OPTION_FORMATS_INFO},
339 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
340 {"input-target", required_argument, 0, 'I'},
341 {"interleave", required_argument, 0, 'i'},
342 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
343 {"keep-global-symbol", required_argument, 0, 'G'},
344 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
345 {"keep-symbol", required_argument, 0, 'K'},
346 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
347 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
348 {"localize-symbol", required_argument, 0, 'L'},
349 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
350 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
351 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
352 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
353 {"only-section", required_argument, 0, 'j'},
354 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
355 {"output-target", required_argument, 0, 'O'},
356 {"pad-to", required_argument, 0, OPTION_PAD_TO},
357 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
358 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
359 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
360 {"preserve-dates", no_argument, 0, 'p'},
361 {"pure", no_argument, 0, OPTION_PURE},
362 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
363 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
364 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
365 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
366 {"remove-section", required_argument, 0, 'R'},
367 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
368 {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
369 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
370 {"set-start", required_argument, 0, OPTION_SET_START},
371 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
372 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
373 {"strip-all", no_argument, 0, 'S'},
374 {"strip-debug", no_argument, 0, 'g'},
375 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
376 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
377 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
378 {"strip-symbol", required_argument, 0, 'N'},
379 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
380 {"target", required_argument, 0, 'F'},
381 {"verbose", no_argument, 0, 'v'},
382 {"version", no_argument, 0, 'V'},
383 {"weaken", no_argument, 0, OPTION_WEAKEN},
384 {"weaken-symbol", required_argument, 0, 'W'},
385 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
386 {"wildcard", no_argument, 0, 'w'},
387 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
388 {0, no_argument, 0, 0}
392 extern char *program_name;
394 /* This flag distinguishes between strip and objcopy:
395 1 means this is 'strip'; 0 means this is 'objcopy'.
396 -1 means if we should use argv[0] to decide. */
399 /* The maximum length of an S record. This variable is declared in srec.c
400 and can be modified by the --srec-len parameter. */
401 extern unsigned int Chunk;
403 /* Restrict the generation of Srecords to type S3 only.
404 This variable is declare in bfd/srec.c and can be toggled
405 on by the --srec-forceS3 command line switch. */
406 extern bfd_boolean S3Forced;
408 /* Defined in bfd/binary.c. Used to set architecture and machine of input
410 extern enum bfd_architecture bfd_external_binary_architecture;
411 extern unsigned long bfd_external_machine;
413 /* Forward declarations. */
414 static void setup_section (bfd *, asection *, void *);
415 static void setup_bfd_headers (bfd *, bfd *);
416 static void copy_section (bfd *, asection *, void *);
417 static void get_sections (bfd *, asection *, void *);
418 static int compare_section_lma (const void *, const void *);
419 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
420 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
421 static const char *lookup_sym_redefinition (const char *);
424 copy_usage (FILE *stream, int exit_status)
426 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
427 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
428 fprintf (stream, _(" The options are:\n"));
429 fprintf (stream, _("\
430 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
431 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
432 -B --binary-architecture <arch> Set arch of output file, when input is binary\n\
433 -F --target <bfdname> Set both input and output format to <bfdname>\n\
434 --debugging Convert debugging information, if possible\n\
435 -p --preserve-dates Copy modified/access timestamps to the output\n\
436 -j --only-section <name> Only copy section <name> into the output\n\
437 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
438 -R --remove-section <name> Remove section <name> from the output\n\
439 -S --strip-all Remove all symbol and relocation information\n\
440 -g --strip-debug Remove all debugging symbols & sections\n\
441 --strip-unneeded Remove all symbols not needed by relocations\n\
442 -N --strip-symbol <name> Do not copy symbol <name>\n\
443 --strip-unneeded-symbol <name>\n\
444 Do not copy symbol <name> unless needed by\n\
446 --only-keep-debug Strip everything but the debug information\n\
447 --extract-symbol Remove section contents but keep symbols\n\
448 -K --keep-symbol <name> Do not strip symbol <name>\n\
449 --keep-file-symbols Do not strip file symbol(s)\n\
450 --localize-hidden Turn all ELF hidden symbols into locals\n\
451 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
452 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
453 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
454 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
455 --weaken Force all global symbols to be marked as weak\n\
456 -w --wildcard Permit wildcard in symbol comparison\n\
457 -x --discard-all Remove all non-global symbols\n\
458 -X --discard-locals Remove any compiler-generated symbols\n\
459 -i --interleave <number> Only copy one out of every <number> bytes\n\
460 -b --byte <num> Select byte <num> in every interleaved block\n\
461 --gap-fill <val> Fill gaps between sections with <val>\n\
462 --pad-to <addr> Pad the last section up to address <addr>\n\
463 --set-start <addr> Set the start address to <addr>\n\
464 {--change-start|--adjust-start} <incr>\n\
465 Add <incr> to the start address\n\
466 {--change-addresses|--adjust-vma} <incr>\n\
467 Add <incr> to LMA, VMA and start addresses\n\
468 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
469 Change LMA and VMA of section <name> by <val>\n\
470 --change-section-lma <name>{=|+|-}<val>\n\
471 Change the LMA of section <name> by <val>\n\
472 --change-section-vma <name>{=|+|-}<val>\n\
473 Change the VMA of section <name> by <val>\n\
474 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
475 Warn if a named section does not exist\n\
476 --set-section-flags <name>=<flags>\n\
477 Set section <name>'s properties to <flags>\n\
478 --add-section <name>=<file> Add section <name> found in <file> to output\n\
479 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
480 --change-leading-char Force output format's leading character style\n\
481 --remove-leading-char Remove leading character from global symbols\n\
482 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
483 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
484 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
486 --srec-len <number> Restrict the length of generated Srecords\n\
487 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
488 --strip-symbols <file> -N for all symbols listed in <file>\n\
489 --strip-unneeded-symbols <file>\n\
490 --strip-unneeded-symbol for all symbols listed\n\
492 --keep-symbols <file> -K for all symbols listed in <file>\n\
493 --localize-symbols <file> -L for all symbols listed in <file>\n\
494 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
495 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
496 --weaken-symbols <file> -W for all symbols listed in <file>\n\
497 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
498 --writable-text Mark the output text as writable\n\
499 --readonly-text Make the output text write protected\n\
500 --pure Mark the output file as demand paged\n\
501 --impure Mark the output file as impure\n\
502 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
503 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
504 --prefix-alloc-sections <prefix>\n\
505 Add <prefix> to start of every allocatable\n\
507 -v --verbose List all object files modified\n\
508 @<file> Read options from <file>\n\
509 -V --version Display this program's version number\n\
510 -h --help Display this output\n\
511 --info List object formats & architectures supported\n\
513 list_supported_targets (program_name, stream);
514 if (REPORT_BUGS_TO[0] && exit_status == 0)
515 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
520 strip_usage (FILE *stream, int exit_status)
522 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
523 fprintf (stream, _(" Removes symbols and sections from files\n"));
524 fprintf (stream, _(" The options are:\n"));
525 fprintf (stream, _("\
526 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
527 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
528 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
529 -p --preserve-dates Copy modified/access timestamps to the output\n\
530 -R --remove-section=<name> Remove section <name> from the output\n\
531 -s --strip-all Remove all symbol and relocation information\n\
532 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
533 --strip-unneeded Remove all symbols not needed by relocations\n\
534 --only-keep-debug Strip everything but the debug information\n\
535 -N --strip-symbol=<name> Do not copy symbol <name>\n\
536 -K --keep-symbol=<name> Do not strip symbol <name>\n\
537 --keep-file-symbols Do not strip file symbol(s)\n\
538 -w --wildcard Permit wildcard in symbol comparison\n\
539 -x --discard-all Remove all non-global symbols\n\
540 -X --discard-locals Remove any compiler-generated symbols\n\
541 -v --verbose List all object files modified\n\
542 -V --version Display this program's version number\n\
543 -h --help Display this output\n\
544 --info List object formats & architectures supported\n\
545 -o <file> Place stripped output into <file>\n\
548 list_supported_targets (program_name, stream);
549 if (REPORT_BUGS_TO[0] && exit_status == 0)
550 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
554 /* Parse section flags into a flagword, with a fatal error if the
555 string can't be parsed. */
558 parse_flags (const char *s)
568 snext = strchr (s, ',');
578 #define PARSE_FLAG(fname,fval) \
579 else if (strncasecmp (fname, s, len) == 0) ret |= fval
580 PARSE_FLAG ("alloc", SEC_ALLOC);
581 PARSE_FLAG ("load", SEC_LOAD);
582 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
583 PARSE_FLAG ("readonly", SEC_READONLY);
584 PARSE_FLAG ("debug", SEC_DEBUGGING);
585 PARSE_FLAG ("code", SEC_CODE);
586 PARSE_FLAG ("data", SEC_DATA);
587 PARSE_FLAG ("rom", SEC_ROM);
588 PARSE_FLAG ("share", SEC_COFF_SHARED);
589 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
595 copy = xmalloc (len + 1);
596 strncpy (copy, s, len);
598 non_fatal (_("unrecognized section flag `%s'"), copy);
599 fatal (_("supported flags: %s"),
600 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
610 /* Find and optionally add an entry in the change_sections list. */
612 static struct section_list *
613 find_section_list (const char *name, bfd_boolean add)
615 struct section_list *p;
617 for (p = change_sections; p != NULL; p = p->next)
618 if (strcmp (p->name, name) == 0)
624 p = xmalloc (sizeof (struct section_list));
629 p->change_vma = CHANGE_IGNORE;
630 p->change_lma = CHANGE_IGNORE;
633 p->set_flags = FALSE;
636 p->next = change_sections;
642 /* Add a symbol to strip_specific_list. */
645 add_specific_symbol (const char *name, struct symlist **list)
647 struct symlist *tmp_list;
649 tmp_list = xmalloc (sizeof (struct symlist));
650 tmp_list->name = name;
651 tmp_list->next = *list;
655 /* Add symbols listed in `filename' to strip_specific_list. */
657 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
658 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
661 add_specific_symbols (const char *filename, struct symlist **list)
667 unsigned int line_count;
669 size = get_file_size (filename);
676 buffer = xmalloc (size + 2);
677 f = fopen (filename, FOPEN_RT);
679 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
681 if (fread (buffer, 1, size, f) == 0 || ferror (f))
682 fatal (_("%s: fread failed"), filename);
685 buffer [size] = '\n';
686 buffer [size + 1] = '\0';
690 for (line = buffer; * line != '\0'; line ++)
695 int finished = FALSE;
697 for (eol = line;; eol ++)
703 /* Cope with \n\r. */
711 /* Cope with \r\n. */
722 /* Line comment, Terminate the line here, in case a
723 name is present and then allow the rest of the
724 loop to find the real end of the line. */
736 /* A name may now exist somewhere between 'line' and 'eol'.
737 Strip off leading whitespace and trailing whitespace,
738 then add it to the list. */
739 for (name = line; IS_WHITESPACE (* name); name ++)
741 for (name_end = name;
742 (! IS_WHITESPACE (* name_end))
743 && (! IS_LINE_TERMINATOR (* name_end));
747 if (! IS_LINE_TERMINATOR (* name_end))
751 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
754 if (! IS_LINE_TERMINATOR (* extra))
755 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
756 filename, line_count);
762 add_specific_symbol (name, list);
764 /* Advance line pointer to end of line. The 'eol ++' in the for
765 loop above will then advance us to the start of the next line. */
771 /* See whether a symbol should be stripped or kept based on
772 strip_specific_list and keep_symbols. */
775 is_specified_symbol (const char *name, struct symlist *list)
777 struct symlist *tmp_list;
781 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
782 if (*(tmp_list->name) != '!')
784 if (!fnmatch (tmp_list->name, name, 0))
789 if (fnmatch (tmp_list->name + 1, name, 0))
795 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
796 if (strcmp (name, tmp_list->name) == 0)
803 /* Return a pointer to the symbol used as a signature for GROUP. */
806 group_signature (asection *group)
808 bfd *abfd = group->owner;
809 Elf_Internal_Shdr *ghdr;
811 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
814 ghdr = &elf_section_data (group)->this_hdr;
815 if (ghdr->sh_link < elf_numsections (abfd))
817 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
818 Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
820 if (symhdr->sh_type == SHT_SYMTAB
821 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
822 return isympp[ghdr->sh_info - 1];
827 /* See if a section is being removed. */
830 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
832 if (sections_removed || sections_copied)
834 struct section_list *p;
836 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE);
838 if (sections_removed && p != NULL && p->remove)
840 if (sections_copied && (p == NULL || ! p->copy))
844 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
846 if (strip_symbols == STRIP_DEBUG
847 || strip_symbols == STRIP_UNNEEDED
848 || strip_symbols == STRIP_ALL
849 || discard_locals == LOCALS_ALL
850 || convert_debugging)
853 if (strip_symbols == STRIP_NONDEBUG)
857 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
863 Group sections look like debugging sections but they are not.
864 (They have a non-zero size but they are not ALLOCated). */
865 if (strip_symbols == STRIP_NONDEBUG)
869 If we are going to strip the group signature symbol, then
870 strip the group section too. */
871 gsym = group_signature (sec);
876 if ((strip_symbols == STRIP_ALL
877 && !is_specified_symbol (gname, keep_specific_list))
878 || is_specified_symbol (gname, strip_specific_list))
885 /* Return true if SYM is a hidden symbol. */
888 is_hidden_symbol (asymbol *sym)
890 elf_symbol_type *elf_sym;
892 elf_sym = elf_symbol_from (sym->the_bfd, sym);
894 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
903 /* Choose which symbol entries to copy; put the result in OSYMS.
904 We don't copy in place, because that confuses the relocs.
905 Return the number of symbols to print. */
908 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
909 asymbol **isyms, long symcount)
911 asymbol **from = isyms, **to = osyms;
912 long src_count = 0, dst_count = 0;
913 int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
916 for (; src_count < symcount; src_count++)
918 asymbol *sym = from[src_count];
919 flagword flags = sym->flags;
920 char *name = (char *) bfd_asymbol_name (sym);
922 bfd_boolean used_in_reloc = FALSE;
923 bfd_boolean undefined;
924 bfd_boolean rem_leading_char;
925 bfd_boolean add_leading_char;
927 undefined = bfd_is_und_section (bfd_get_section (sym));
929 if (redefine_sym_list)
931 char *old_name, *new_name;
933 old_name = (char *) bfd_asymbol_name (sym);
934 new_name = (char *) lookup_sym_redefinition (old_name);
935 bfd_asymbol_name (sym) = new_name;
939 /* Check if we will remove the current leading character. */
941 (name[0] == bfd_get_symbol_leading_char (abfd))
942 && (change_leading_char
943 || (remove_leading_char
944 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
946 || bfd_is_com_section (bfd_get_section (sym)))));
948 /* Check if we will add a new leading character. */
951 && (bfd_get_symbol_leading_char (obfd) != '\0')
952 && (bfd_get_symbol_leading_char (abfd) == '\0'
953 || (name[0] == bfd_get_symbol_leading_char (abfd)));
955 /* Short circuit for change_leading_char if we can do it in-place. */
956 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
958 name[0] = bfd_get_symbol_leading_char (obfd);
959 bfd_asymbol_name (sym) = name;
960 rem_leading_char = FALSE;
961 add_leading_char = FALSE;
964 /* Remove leading char. */
965 if (rem_leading_char)
966 bfd_asymbol_name (sym) = ++name;
968 /* Add new leading char and/or prefix. */
969 if (add_leading_char || prefix_symbols_string)
973 ptr = n = xmalloc (1 + strlen (prefix_symbols_string)
974 + strlen (name) + 1);
975 if (add_leading_char)
976 *ptr++ = bfd_get_symbol_leading_char (obfd);
978 if (prefix_symbols_string)
980 strcpy (ptr, prefix_symbols_string);
981 ptr += strlen (prefix_symbols_string);
985 bfd_asymbol_name (sym) = n;
989 if (strip_symbols == STRIP_ALL)
991 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
992 || ((flags & BSF_SECTION_SYM) != 0
993 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
997 used_in_reloc = TRUE;
999 else if (relocatable /* Relocatable file. */
1000 && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
1002 else if (bfd_decode_symclass (sym) == 'I')
1003 /* Global symbols in $idata sections need to be retained
1004 even if relocatable is FALSE. External users of the
1005 library containing the $idata section may reference these
1008 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1009 || (flags & BSF_WEAK) != 0
1011 || bfd_is_com_section (bfd_get_section (sym)))
1012 keep = strip_symbols != STRIP_UNNEEDED;
1013 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1014 keep = (strip_symbols != STRIP_DEBUG
1015 && strip_symbols != STRIP_UNNEEDED
1016 && ! convert_debugging);
1017 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
1018 /* COMDAT sections store special information in local
1019 symbols, so we cannot risk stripping any of them. */
1021 else /* Local symbol. */
1022 keep = (strip_symbols != STRIP_UNNEEDED
1023 && (discard_locals != LOCALS_ALL
1024 && (discard_locals != LOCALS_START_L
1025 || ! bfd_is_local_label (abfd, sym))));
1027 if (keep && is_specified_symbol (name, strip_specific_list))
1029 /* There are multiple ways to set 'keep' above, but if it
1030 was the relocatable symbol case, then that's an error. */
1033 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1041 && !(flags & BSF_KEEP)
1042 && is_specified_symbol (name, strip_unneeded_list))
1046 && ((keep_file_symbols && (flags & BSF_FILE))
1047 || is_specified_symbol (name, keep_specific_list)))
1050 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
1055 if ((flags & BSF_GLOBAL) != 0
1056 && (weaken || is_specified_symbol (name, weaken_specific_list)))
1058 sym->flags &= ~ BSF_GLOBAL;
1059 sym->flags |= BSF_WEAK;
1063 && (flags & (BSF_GLOBAL | BSF_WEAK))
1064 && (is_specified_symbol (name, localize_specific_list)
1065 || (keepglobal_specific_list != NULL
1066 && ! is_specified_symbol (name, keepglobal_specific_list))
1067 || (localize_hidden && is_hidden_symbol (sym))))
1069 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1070 sym->flags |= BSF_LOCAL;
1074 && (flags & BSF_LOCAL)
1075 && is_specified_symbol (name, globalize_specific_list))
1077 sym->flags &= ~ BSF_LOCAL;
1078 sym->flags |= BSF_GLOBAL;
1081 to[dst_count++] = sym;
1085 to[dst_count] = NULL;
1090 /* Find the redefined name of symbol SOURCE. */
1093 lookup_sym_redefinition (const char *source)
1095 struct redefine_node *list;
1097 for (list = redefine_sym_list; list != NULL; list = list->next)
1098 if (strcmp (source, list->source) == 0)
1099 return list->target;
1104 /* Add a node to a symbol redefine list. */
1107 redefine_list_append (const char *cause, const char *source, const char *target)
1109 struct redefine_node **p;
1110 struct redefine_node *list;
1111 struct redefine_node *new_node;
1113 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1115 if (strcmp (source, list->source) == 0)
1116 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1119 if (strcmp (target, list->target) == 0)
1120 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1124 new_node = xmalloc (sizeof (struct redefine_node));
1126 new_node->source = strdup (source);
1127 new_node->target = strdup (target);
1128 new_node->next = NULL;
1133 /* Handle the --redefine-syms option. Read lines containing "old new"
1134 from the file, and add them to the symbol redefine list. */
1137 add_redefine_syms_file (const char *filename)
1146 file = fopen (filename, "r");
1148 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1149 filename, strerror (errno));
1152 buf = xmalloc (bufsize);
1160 /* Collect the input symbol name. */
1161 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1169 buf = xrealloc (buf, bufsize);
1177 /* Eat white space between the symbol names. */
1178 while (IS_WHITESPACE (c))
1180 if (c == '#' || IS_LINE_TERMINATOR (c))
1185 /* Collect the output symbol name. */
1187 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1195 buf = xrealloc (buf, bufsize);
1203 /* Eat white space at end of line. */
1204 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1209 if ((c == '\r' && (c = getc (file)) == '\n')
1210 || c == '\n' || c == EOF)
1213 /* Append the redefinition to the list. */
1215 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1226 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1228 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1229 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1232 /* Eat the rest of the line and finish it. */
1233 while (c != '\n' && c != EOF)
1239 fatal (_("%s:%d: premature end of file"), filename, lineno);
1244 /* Copy unkown object file IBFD onto OBFD.
1245 Returns TRUE upon success, FALSE otherwise. */
1248 copy_unknown_object (bfd *ibfd, bfd *obfd)
1256 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1258 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1265 non_fatal (_("stat returns negative size for `%s'"),
1266 bfd_get_archive_filename (ibfd));
1270 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1272 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1277 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1278 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1280 cbuf = xmalloc (BUFSIZE);
1282 while (ncopied < size)
1284 tocopy = size - ncopied;
1285 if (tocopy > BUFSIZE)
1288 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1289 != (bfd_size_type) tocopy)
1291 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1296 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1297 != (bfd_size_type) tocopy)
1299 bfd_nonfatal (bfd_get_filename (obfd));
1307 chmod (bfd_get_filename (obfd), buf.st_mode);
1312 /* Copy object file IBFD onto OBFD.
1313 Returns TRUE upon success, FALSE otherwise. */
1316 copy_object (bfd *ibfd, bfd *obfd)
1320 asection **osections = NULL;
1321 asection *gnu_debuglink_section = NULL;
1322 bfd_size_type *gaps = NULL;
1323 bfd_size_type max_gap = 0;
1326 enum bfd_architecture iarch;
1329 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1330 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1331 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1332 fatal (_("Unable to change endianness of input file(s)"));
1334 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1336 bfd_nonfatal (bfd_get_filename (obfd));
1341 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1342 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1343 bfd_get_filename (obfd), bfd_get_target (obfd));
1352 start = bfd_get_start_address (ibfd);
1353 start += change_start;
1356 /* Neither the start address nor the flags
1357 need to be set for a core file. */
1358 if (bfd_get_format (obfd) != bfd_core)
1362 flags = bfd_get_file_flags (ibfd);
1363 flags |= bfd_flags_to_set;
1364 flags &= ~bfd_flags_to_clear;
1365 flags &= bfd_applicable_file_flags (obfd);
1367 if (!bfd_set_start_address (obfd, start)
1368 || !bfd_set_file_flags (obfd, flags))
1370 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1375 /* Copy architecture of input file to output file. */
1376 iarch = bfd_get_arch (ibfd);
1377 imach = bfd_get_mach (ibfd);
1378 if (!bfd_set_arch_mach (obfd, iarch, imach)
1379 && (ibfd->target_defaulted
1380 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1382 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1383 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1384 bfd_get_archive_filename (ibfd));
1386 non_fatal (_("Warning: Output file cannot represent architecture `%s'"),
1387 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1388 bfd_get_mach (ibfd)));
1392 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1394 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1401 if (osympp != isympp)
1407 symsize = bfd_get_symtab_upper_bound (ibfd);
1410 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1414 osympp = isympp = xmalloc (symsize);
1415 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1418 bfd_nonfatal (bfd_get_filename (ibfd));
1422 /* BFD mandates that all output sections be created and sizes set before
1423 any output is done. Thus, we traverse all sections multiple times. */
1424 bfd_map_over_sections (ibfd, setup_section, obfd);
1426 setup_bfd_headers (ibfd, obfd);
1428 if (add_sections != NULL)
1430 struct section_add *padd;
1431 struct section_list *pset;
1433 for (padd = add_sections; padd != NULL; padd = padd->next)
1437 pset = find_section_list (padd->name, FALSE);
1441 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1442 if (pset != NULL && pset->set_flags)
1443 flags = pset->flags | SEC_HAS_CONTENTS;
1445 /* bfd_make_section_with_flags() does not return very helpful
1446 error codes, so check for the most likely user error first. */
1447 if (bfd_get_section_by_name (obfd, padd->name))
1449 non_fatal (_("can't add section '%s' - it already exists!"), padd->name);
1454 padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
1455 if (padd->section == NULL)
1457 non_fatal (_("can't create section `%s': %s"),
1458 padd->name, bfd_errmsg (bfd_get_error ()));
1463 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1465 bfd_nonfatal (bfd_get_filename (obfd));
1471 if (pset->change_vma != CHANGE_IGNORE)
1472 if (! bfd_set_section_vma (obfd, padd->section,
1475 bfd_nonfatal (bfd_get_filename (obfd));
1479 if (pset->change_lma != CHANGE_IGNORE)
1481 padd->section->lma = pset->lma_val;
1483 if (! bfd_set_section_alignment
1484 (obfd, padd->section,
1485 bfd_section_alignment (obfd, padd->section)))
1487 bfd_nonfatal (bfd_get_filename (obfd));
1495 if (gnu_debuglink_filename != NULL)
1497 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1498 (obfd, gnu_debuglink_filename);
1500 if (gnu_debuglink_section == NULL)
1502 bfd_nonfatal (gnu_debuglink_filename);
1506 /* Special processing for PE format files. We
1507 have no way to distinguish PE from COFF here. */
1508 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1510 bfd_vma debuglink_vma;
1511 asection * highest_section;
1514 /* The PE spec requires that all sections be adjacent and sorted
1515 in ascending order of VMA. It also specifies that debug
1516 sections should be last. This is despite the fact that debug
1517 sections are not loaded into memory and so in theory have no
1520 This means that the debuglink section must be given a non-zero
1521 VMA which makes it contiguous with other debug sections. So
1522 walk the current section list, find the section with the
1523 highest VMA and start the debuglink section after that one. */
1524 for (sec = obfd->sections, highest_section = NULL;
1528 && (highest_section == NULL
1529 || sec->vma > highest_section->vma))
1530 highest_section = sec;
1532 if (highest_section)
1533 debuglink_vma = BFD_ALIGN (highest_section->vma
1534 + highest_section->size,
1535 /* FIXME: We ought to be using
1536 COFF_PAGE_SIZE here or maybe
1537 bfd_get_section_alignment() (if it
1538 was set) but since this is for PE
1539 and we know the required alignment
1540 it is easier just to hard code it. */
1543 /* Umm, not sure what to do in this case. */
1544 debuglink_vma = 0x1000;
1546 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1550 if (bfd_count_sections (obfd) != 0
1551 && (gap_fill_set || pad_to_set))
1556 /* We must fill in gaps between the sections and/or we must pad
1557 the last section to a specified address. We do this by
1558 grabbing a list of the sections, sorting them by VMA, and
1559 increasing the section sizes as required to fill the gaps.
1560 We write out the gap contents below. */
1562 c = bfd_count_sections (obfd);
1563 osections = xmalloc (c * sizeof (asection *));
1565 bfd_map_over_sections (obfd, get_sections, &set);
1567 qsort (osections, c, sizeof (asection *), compare_section_lma);
1569 gaps = xmalloc (c * sizeof (bfd_size_type));
1570 memset (gaps, 0, c * sizeof (bfd_size_type));
1574 for (i = 0; i < c - 1; i++)
1578 bfd_vma gap_start, gap_stop;
1580 flags = bfd_get_section_flags (obfd, osections[i]);
1581 if ((flags & SEC_HAS_CONTENTS) == 0
1582 || (flags & SEC_LOAD) == 0)
1585 size = bfd_section_size (obfd, osections[i]);
1586 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1587 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1588 if (gap_start < gap_stop)
1590 if (! bfd_set_section_size (obfd, osections[i],
1591 size + (gap_stop - gap_start)))
1593 non_fatal (_("Can't fill gap after %s: %s"),
1594 bfd_get_section_name (obfd, osections[i]),
1595 bfd_errmsg (bfd_get_error ()));
1599 gaps[i] = gap_stop - gap_start;
1600 if (max_gap < gap_stop - gap_start)
1601 max_gap = gap_stop - gap_start;
1611 lma = bfd_section_lma (obfd, osections[c - 1]);
1612 size = bfd_section_size (obfd, osections[c - 1]);
1613 if (lma + size < pad_to)
1615 if (! bfd_set_section_size (obfd, osections[c - 1],
1618 non_fatal (_("Can't add padding to %s: %s"),
1619 bfd_get_section_name (obfd, osections[c - 1]),
1620 bfd_errmsg (bfd_get_error ()));
1625 gaps[c - 1] = pad_to - (lma + size);
1626 if (max_gap < pad_to - (lma + size))
1627 max_gap = pad_to - (lma + size);
1633 /* Symbol filtering must happen after the output sections
1634 have been created, but before their contents are set. */
1636 if (convert_debugging)
1637 dhandle = read_debugging_info (ibfd, isympp, symcount);
1639 if (strip_symbols == STRIP_DEBUG
1640 || strip_symbols == STRIP_ALL
1641 || strip_symbols == STRIP_UNNEEDED
1642 || strip_symbols == STRIP_NONDEBUG
1643 || discard_locals != LOCALS_UNDEF
1645 || strip_specific_list != NULL
1646 || keep_specific_list != NULL
1647 || localize_specific_list != NULL
1648 || globalize_specific_list != NULL
1649 || keepglobal_specific_list != NULL
1650 || weaken_specific_list != NULL
1651 || prefix_symbols_string
1654 || convert_debugging
1655 || change_leading_char
1656 || remove_leading_char
1657 || redefine_sym_list
1660 /* Mark symbols used in output relocations so that they
1661 are kept, even if they are local labels or static symbols.
1663 Note we iterate over the input sections examining their
1664 relocations since the relocations for the output sections
1665 haven't been set yet. mark_symbols_used_in_relocations will
1666 ignore input sections which have no corresponding output
1668 if (strip_symbols != STRIP_ALL)
1669 bfd_map_over_sections (ibfd,
1670 mark_symbols_used_in_relocations,
1672 osympp = xmalloc ((symcount + 1) * sizeof (asymbol *));
1673 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1676 if (convert_debugging && dhandle != NULL)
1678 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1685 bfd_set_symtab (obfd, osympp, symcount);
1687 /* This has to happen after the symbol table has been set. */
1688 bfd_map_over_sections (ibfd, copy_section, obfd);
1690 if (add_sections != NULL)
1692 struct section_add *padd;
1694 for (padd = add_sections; padd != NULL; padd = padd->next)
1696 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1699 bfd_nonfatal (bfd_get_filename (obfd));
1705 if (gnu_debuglink_filename != NULL)
1707 if (! bfd_fill_in_gnu_debuglink_section
1708 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
1710 bfd_nonfatal (gnu_debuglink_filename);
1715 if (gap_fill_set || pad_to_set)
1720 /* Fill in the gaps. */
1723 buf = xmalloc (max_gap);
1724 memset (buf, gap_fill, max_gap);
1726 c = bfd_count_sections (obfd);
1727 for (i = 0; i < c; i++)
1735 off = bfd_section_size (obfd, osections[i]) - left;
1746 if (! bfd_set_section_contents (obfd, osections[i], buf,
1749 bfd_nonfatal (bfd_get_filename (obfd));
1760 /* Do not copy backend data if --extract-symbol is passed; anything
1761 that needs to look at the section contents will fail. */
1765 /* Allow the BFD backend to copy any private data it understands
1766 from the input BFD to the output BFD. This is done last to
1767 permit the routine to look at the filtered symbol table, which is
1768 important for the ECOFF code at least. */
1769 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
1770 && strip_symbols == STRIP_NONDEBUG)
1771 /* Do not copy the private data when creating an ELF format
1772 debug info file. We do not want the program headers. */
1774 else if (! bfd_copy_private_bfd_data (ibfd, obfd))
1776 non_fatal (_("%s: error copying private BFD data: %s"),
1777 bfd_get_filename (obfd),
1778 bfd_errmsg (bfd_get_error ()));
1782 /* Switch to the alternate machine code. We have to do this at the
1783 very end, because we only initialize the header when we create
1784 the first section. */
1785 if (use_alt_mach_code != 0)
1787 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
1789 non_fatal (_("this target does not support %lu alternative machine codes"),
1791 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
1793 non_fatal (_("treating that number as an absolute e_machine value instead"));
1794 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
1797 non_fatal (_("ignoring the alternative value"));
1804 /* Read each archive element in turn from IBFD, copy the
1805 contents to temp file, and keep the temp file handle.
1806 If 'force_output_target' is TRUE then make sure that
1807 all elements in the new archive are of the type
1811 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
1812 bfd_boolean force_output_target)
1816 struct name_list *next;
1820 bfd **ptr = &obfd->archive_head;
1824 /* Make a temp directory to hold the contents. */
1825 dir = make_tempdir (bfd_get_filename (obfd));
1827 fatal (_("cannot create tempdir for archive copying (error: %s)"),
1830 obfd->has_armap = ibfd->has_armap;
1834 this_element = bfd_openr_next_archived_file (ibfd, NULL);
1836 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1837 RETURN_NONFATAL (bfd_get_filename (obfd));
1839 while (!status && this_element != NULL)
1845 int stat_status = 0;
1846 bfd_boolean delete = TRUE;
1848 /* Create an output file for this member. */
1849 output_name = concat (dir, "/",
1850 bfd_get_filename (this_element), (char *) 0);
1852 /* If the file already exists, make another temp dir. */
1853 if (stat (output_name, &buf) >= 0)
1855 output_name = make_tempdir (output_name);
1856 if (output_name == NULL)
1857 fatal (_("cannot create tempdir for archive copying (error: %s)"),
1860 l = xmalloc (sizeof (struct name_list));
1861 l->name = output_name;
1865 output_name = concat (output_name, "/",
1866 bfd_get_filename (this_element), (char *) 0);
1871 stat_status = bfd_stat_arch_elt (this_element, &buf);
1873 if (stat_status != 0)
1874 non_fatal (_("internal stat error on %s"),
1875 bfd_get_filename (this_element));
1878 l = xmalloc (sizeof (struct name_list));
1879 l->name = output_name;
1884 if (bfd_check_format (this_element, bfd_object))
1886 /* PR binutils/3110: Cope with archives
1887 containing multiple target types. */
1888 if (force_output_target)
1889 output_bfd = bfd_openw (output_name, output_target);
1891 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
1893 if (output_bfd == NULL)
1894 RETURN_NONFATAL (output_name);
1896 delete = ! copy_object (this_element, output_bfd);
1899 || bfd_get_arch (this_element) != bfd_arch_unknown)
1901 if (!bfd_close (output_bfd))
1903 bfd_nonfatal (bfd_get_filename (output_bfd));
1904 /* Error in new object file. Don't change archive. */
1909 goto copy_unknown_element;
1913 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1914 bfd_get_archive_filename (this_element));
1916 output_bfd = bfd_openw (output_name, output_target);
1917 copy_unknown_element:
1918 delete = !copy_unknown_object (this_element, output_bfd);
1919 if (!bfd_close_all_done (output_bfd))
1921 bfd_nonfatal (bfd_get_filename (output_bfd));
1922 /* Error in new object file. Don't change archive. */
1929 unlink (output_name);
1934 if (preserve_dates && stat_status == 0)
1935 set_times (output_name, &buf);
1937 /* Open the newly output file and attach to our list. */
1938 output_bfd = bfd_openr (output_name, output_target);
1940 l->obfd = output_bfd;
1943 ptr = &output_bfd->next;
1945 last_element = this_element;
1947 this_element = bfd_openr_next_archived_file (ibfd, last_element);
1949 bfd_close (last_element);
1954 if (!bfd_close (obfd))
1955 RETURN_NONFATAL (bfd_get_filename (obfd));
1957 if (!bfd_close (ibfd))
1958 RETURN_NONFATAL (bfd_get_filename (ibfd));
1960 /* Delete all the files that we opened. */
1961 for (l = list; l != NULL; l = l->next)
1963 if (l->obfd == NULL)
1967 bfd_close (l->obfd);
1974 /* The top-level control. */
1977 copy_file (const char *input_filename, const char *output_filename,
1978 const char *input_target, const char *output_target)
1981 char **obj_matching;
1982 char **core_matching;
1984 if (get_file_size (input_filename) < 1)
1990 /* To allow us to do "strip *" without dying on the first
1991 non-object file, failures are nonfatal. */
1992 ibfd = bfd_openr (input_filename, input_target);
1994 RETURN_NONFATAL (input_filename);
1996 if (bfd_check_format (ibfd, bfd_archive))
1998 bfd_boolean force_output_target;
2001 /* bfd_get_target does not return the correct value until
2002 bfd_check_format succeeds. */
2003 if (output_target == NULL)
2005 output_target = bfd_get_target (ibfd);
2006 force_output_target = FALSE;
2009 force_output_target = TRUE;
2011 obfd = bfd_openw (output_filename, output_target);
2013 RETURN_NONFATAL (output_filename);
2015 copy_archive (ibfd, obfd, output_target, force_output_target);
2017 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
2022 /* bfd_get_target does not return the correct value until
2023 bfd_check_format succeeds. */
2024 if (output_target == NULL)
2025 output_target = bfd_get_target (ibfd);
2027 obfd = bfd_openw (output_filename, output_target);
2029 RETURN_NONFATAL (output_filename);
2031 if (! copy_object (ibfd, obfd))
2034 if (!bfd_close (obfd))
2035 RETURN_NONFATAL (output_filename);
2037 if (!bfd_close (ibfd))
2038 RETURN_NONFATAL (input_filename);
2043 bfd_error_type obj_error = bfd_get_error ();
2044 bfd_error_type core_error;
2046 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2048 /* This probably can't happen.. */
2049 if (obj_error == bfd_error_file_ambiguously_recognized)
2050 free (obj_matching);
2054 core_error = bfd_get_error ();
2055 /* Report the object error in preference to the core error. */
2056 if (obj_error != core_error)
2057 bfd_set_error (obj_error);
2059 bfd_nonfatal (input_filename);
2061 if (obj_error == bfd_error_file_ambiguously_recognized)
2063 list_matching_formats (obj_matching);
2064 free (obj_matching);
2066 if (core_error == bfd_error_file_ambiguously_recognized)
2068 list_matching_formats (core_matching);
2069 free (core_matching);
2076 /* Add a name to the section renaming list. */
2079 add_section_rename (const char * old_name, const char * new_name,
2082 section_rename * rename;
2084 /* Check for conflicts first. */
2085 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2086 if (strcmp (rename->old_name, old_name) == 0)
2088 /* Silently ignore duplicate definitions. */
2089 if (strcmp (rename->new_name, new_name) == 0
2090 && rename->flags == flags)
2093 fatal (_("Multiple renames of section %s"), old_name);
2096 rename = xmalloc (sizeof (* rename));
2098 rename->old_name = old_name;
2099 rename->new_name = new_name;
2100 rename->flags = flags;
2101 rename->next = section_rename_list;
2103 section_rename_list = rename;
2106 /* Check the section rename list for a new name of the input section
2107 ISECTION. Return the new name if one is found.
2108 Also set RETURNED_FLAGS to the flags to be used for this section. */
2111 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2112 flagword * returned_flags)
2114 const char * old_name = bfd_section_name (ibfd, isection);
2115 section_rename * rename;
2117 /* Default to using the flags of the input section. */
2118 * returned_flags = bfd_get_section_flags (ibfd, isection);
2120 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2121 if (strcmp (rename->old_name, old_name) == 0)
2123 if (rename->flags != (flagword) -1)
2124 * returned_flags = rename->flags;
2126 return rename->new_name;
2132 /* Once each of the sections is copied, we may still need to do some
2133 finalization work for private section headers. Do that here. */
2136 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2140 /* Allow the BFD backend to copy any private data it understands
2141 from the input section to the output section. */
2142 if (! bfd_copy_private_header_data (ibfd, obfd))
2144 err = _("private header data");
2148 /* All went well. */
2152 non_fatal (_("%s: error in %s: %s"),
2153 bfd_get_filename (ibfd),
2154 err, bfd_errmsg (bfd_get_error ()));
2158 /* Create a section in OBFD with the same
2159 name and attributes as ISECTION in IBFD. */
2162 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2164 bfd *obfd = obfdarg;
2165 struct section_list *p;
2173 char *prefix = NULL;
2175 if (is_strip_section (ibfd, isection))
2178 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
2182 /* Get the, possibly new, name of the output section. */
2183 name = find_section_rename (ibfd, isection, & flags);
2185 /* Prefix sections. */
2186 if ((prefix_alloc_sections_string)
2187 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2188 prefix = prefix_alloc_sections_string;
2189 else if (prefix_sections_string)
2190 prefix = prefix_sections_string;
2196 n = xmalloc (strlen (prefix) + strlen (name) + 1);
2202 if (p != NULL && p->set_flags)
2203 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2204 else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0)
2205 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
2207 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2209 if (osection == NULL)
2215 if (strip_symbols == STRIP_NONDEBUG
2216 && obfd->xvec->flavour == bfd_target_elf_flavour
2217 && (flags & SEC_ALLOC) != 0
2218 && (p == NULL || !p->set_flags))
2219 elf_section_type (osection) = SHT_NOBITS;
2221 size = bfd_section_size (ibfd, isection);
2223 size = (size + interleave - 1) / interleave;
2224 else if (extract_symbol)
2226 if (! bfd_set_section_size (obfd, osection, size))
2232 vma = bfd_section_vma (ibfd, isection);
2233 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2235 else if (p != NULL && p->change_vma == CHANGE_SET)
2238 vma += change_section_address;
2240 if (! bfd_set_section_vma (obfd, osection, extract_symbol ? 0 : vma))
2246 lma = isection->lma;
2247 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2249 if (p->change_lma == CHANGE_MODIFY)
2251 else if (p->change_lma == CHANGE_SET)
2257 lma += change_section_address;
2259 osection->lma = extract_symbol ? 0 : lma;
2261 /* FIXME: This is probably not enough. If we change the LMA we
2262 may have to recompute the header for the file as well. */
2263 if (!bfd_set_section_alignment (obfd,
2265 bfd_section_alignment (ibfd, isection)))
2267 err = _("alignment");
2271 /* Copy merge entity size. */
2272 osection->entsize = isection->entsize;
2274 /* This used to be mangle_section; we do here to avoid using
2275 bfd_get_section_by_name since some formats allow multiple
2276 sections with the same name. */
2277 isection->output_section = osection;
2278 isection->output_offset = extract_symbol ? vma : 0;
2280 /* Do not copy backend data if --extract-symbol is passed; anything
2281 that needs to look at the section contents will fail. */
2285 /* Allow the BFD backend to copy any private data it understands
2286 from the input section to the output section. */
2287 if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
2288 && strip_symbols == STRIP_NONDEBUG)
2289 /* Do not copy the private data when creating an ELF format
2290 debug info file. We do not want the program headers. */
2292 else if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2294 err = _("private data");
2297 else if ((isection->flags & SEC_GROUP) != 0)
2299 asymbol *gsym = group_signature (isection);
2302 gsym->flags |= BSF_KEEP;
2305 /* All went well. */
2309 non_fatal (_("%s: section `%s': error in %s: %s"),
2310 bfd_get_filename (ibfd),
2311 bfd_section_name (ibfd, isection),
2312 err, bfd_errmsg (bfd_get_error ()));
2316 /* Copy the data of input section ISECTION of IBFD
2317 to an output section with the same name in OBFD.
2318 If stripping then don't copy any relocation info. */
2321 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2323 bfd *obfd = obfdarg;
2324 struct section_list *p;
2332 /* If we have already failed earlier on,
2333 do not keep on generating complaints now. */
2337 if (is_strip_section (ibfd, isection))
2340 flags = bfd_get_section_flags (ibfd, isection);
2341 if ((flags & SEC_GROUP) != 0)
2344 osection = isection->output_section;
2345 size = bfd_get_section_size (isection);
2347 if (size == 0 || osection == 0)
2350 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2352 /* Core files do not need to be relocated. */
2353 if (bfd_get_format (obfd) == bfd_core)
2357 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2361 /* Do not complain if the target does not support relocations. */
2362 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2365 RETURN_NONFATAL (bfd_get_filename (ibfd));
2370 bfd_set_reloc (obfd, osection, NULL, 0);
2373 relpp = xmalloc (relsize);
2374 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2376 RETURN_NONFATAL (bfd_get_filename (ibfd));
2378 if (strip_symbols == STRIP_ALL)
2380 /* Remove relocations which are not in
2381 keep_strip_specific_list. */
2382 arelent **temp_relpp;
2383 long temp_relcount = 0;
2386 temp_relpp = xmalloc (relsize);
2387 for (i = 0; i < relcount; i++)
2388 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2389 keep_specific_list))
2390 temp_relpp [temp_relcount++] = relpp [i];
2391 relcount = temp_relcount;
2396 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2404 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2405 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2407 void *memhunk = xmalloc (size);
2409 if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
2410 RETURN_NONFATAL (bfd_get_filename (ibfd));
2414 /* We don't handle leftover bytes (too many possible behaviors,
2415 and we don't know what the user wants). The section length
2416 must be a multiple of the number of bytes to swap. */
2417 if ((size % reverse_bytes) == 0)
2422 for (i = 0; i < size; i += reverse_bytes)
2423 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
2425 bfd_byte *m = (bfd_byte *) memhunk;
2428 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
2429 m[(i + reverse_bytes) - (j + 1)] = b;
2433 /* User must pad the section up in order to do this. */
2434 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
2435 bfd_section_name (ibfd, isection), reverse_bytes);
2440 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2441 char *from = (char *) memhunk + copy_byte;
2443 char *end = (char *) memhunk + size;
2445 for (; from < end; from += interleave)
2448 size = (size + interleave - 1 - copy_byte) / interleave;
2449 osection->lma /= interleave;
2452 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2453 RETURN_NONFATAL (bfd_get_filename (obfd));
2457 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2459 void *memhunk = xmalloc (size);
2461 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2462 flag--they can just remove the section entirely and add it
2463 back again. However, we do permit them to turn on the
2464 SEC_HAS_CONTENTS flag, and take it to mean that the section
2465 contents should be zeroed out. */
2467 memset (memhunk, 0, size);
2468 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2469 RETURN_NONFATAL (bfd_get_filename (obfd));
2474 /* Get all the sections. This is used when --gap-fill or --pad-to is
2478 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
2480 asection ***secppp = secppparg;
2482 **secppp = osection;
2486 /* Sort sections by VMA. This is called via qsort, and is used when
2487 --gap-fill or --pad-to is used. We force non loadable or empty
2488 sections to the front, where they are easier to ignore. */
2491 compare_section_lma (const void *arg1, const void *arg2)
2493 const asection *const *sec1 = arg1;
2494 const asection *const *sec2 = arg2;
2495 flagword flags1, flags2;
2497 /* Sort non loadable sections to the front. */
2498 flags1 = (*sec1)->flags;
2499 flags2 = (*sec2)->flags;
2500 if ((flags1 & SEC_HAS_CONTENTS) == 0
2501 || (flags1 & SEC_LOAD) == 0)
2503 if ((flags2 & SEC_HAS_CONTENTS) != 0
2504 && (flags2 & SEC_LOAD) != 0)
2509 if ((flags2 & SEC_HAS_CONTENTS) == 0
2510 || (flags2 & SEC_LOAD) == 0)
2514 /* Sort sections by LMA. */
2515 if ((*sec1)->lma > (*sec2)->lma)
2517 else if ((*sec1)->lma < (*sec2)->lma)
2520 /* Sort sections with the same LMA by size. */
2521 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
2523 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
2529 /* Mark all the symbols which will be used in output relocations with
2530 the BSF_KEEP flag so that those symbols will not be stripped.
2532 Ignore relocations which will not appear in the output file. */
2535 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
2537 asymbol **symbols = symbolsarg;
2542 /* Ignore an input section with no corresponding output section. */
2543 if (isection->output_section == NULL)
2546 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2549 /* Do not complain if the target does not support relocations. */
2550 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2552 bfd_fatal (bfd_get_filename (ibfd));
2558 relpp = xmalloc (relsize);
2559 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2561 bfd_fatal (bfd_get_filename (ibfd));
2563 /* Examine each symbol used in a relocation. If it's not one of the
2564 special bfd section symbols, then mark it with BSF_KEEP. */
2565 for (i = 0; i < relcount; i++)
2567 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2568 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2569 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2570 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
2577 /* Write out debugging information. */
2580 write_debugging_info (bfd *obfd, void *dhandle,
2581 long *symcountp ATTRIBUTE_UNUSED,
2582 asymbol ***symppp ATTRIBUTE_UNUSED)
2584 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2585 return write_ieee_debugging_info (obfd, dhandle);
2587 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2588 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2590 bfd_byte *syms, *strings;
2591 bfd_size_type symsize, stringsize;
2592 asection *stabsec, *stabstrsec;
2595 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2600 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2601 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2602 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
2604 || stabstrsec == NULL
2605 || ! bfd_set_section_size (obfd, stabsec, symsize)
2606 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2607 || ! bfd_set_section_alignment (obfd, stabsec, 2)
2608 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
2610 non_fatal (_("%s: can't create debugging section: %s"),
2611 bfd_get_filename (obfd),
2612 bfd_errmsg (bfd_get_error ()));
2616 /* We can get away with setting the section contents now because
2617 the next thing the caller is going to do is copy over the
2618 real sections. We may someday have to split the contents
2619 setting out of this function. */
2620 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
2621 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
2624 non_fatal (_("%s: can't set debugging section contents: %s"),
2625 bfd_get_filename (obfd),
2626 bfd_errmsg (bfd_get_error ()));
2633 non_fatal (_("%s: don't know how to write debugging information for %s"),
2634 bfd_get_filename (obfd), bfd_get_target (obfd));
2639 strip_main (int argc, char *argv[])
2641 char *input_target = NULL;
2642 char *output_target = NULL;
2643 bfd_boolean show_version = FALSE;
2644 bfd_boolean formats_info = FALSE;
2647 struct section_list *p;
2648 char *output_file = NULL;
2650 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
2651 strip_options, (int *) 0)) != EOF)
2656 input_target = optarg;
2659 output_target = optarg;
2662 input_target = output_target = optarg;
2665 p = find_section_list (optarg, TRUE);
2667 sections_removed = TRUE;
2670 strip_symbols = STRIP_ALL;
2674 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
2675 strip_symbols = STRIP_DEBUG;
2677 case OPTION_STRIP_UNNEEDED:
2678 strip_symbols = STRIP_UNNEEDED;
2681 add_specific_symbol (optarg, &keep_specific_list);
2684 add_specific_symbol (optarg, &strip_specific_list);
2687 output_file = optarg;
2690 preserve_dates = TRUE;
2693 discard_locals = LOCALS_ALL;
2696 discard_locals = LOCALS_START_L;
2702 show_version = TRUE;
2704 case OPTION_FORMATS_INFO:
2705 formats_info = TRUE;
2707 case OPTION_ONLY_KEEP_DEBUG:
2708 strip_symbols = STRIP_NONDEBUG;
2710 case OPTION_KEEP_FILE_SYMBOLS:
2711 keep_file_symbols = 1;
2714 /* We've been given a long option. */
2721 strip_usage (stdout, 0);
2723 strip_usage (stderr, 1);
2734 print_version ("strip");
2736 /* Default is to strip all symbols. */
2737 if (strip_symbols == STRIP_UNDEF
2738 && discard_locals == LOCALS_UNDEF
2739 && strip_specific_list == NULL)
2740 strip_symbols = STRIP_ALL;
2742 if (output_target == NULL)
2743 output_target = input_target;
2747 || (output_file != NULL && (i + 1) < argc))
2748 strip_usage (stderr, 1);
2750 for (; i < argc; i++)
2752 int hold_status = status;
2753 struct stat statbuf;
2756 if (get_file_size (argv[i]) < 1)
2763 /* No need to check the return value of stat().
2764 It has already been checked in get_file_size(). */
2765 stat (argv[i], &statbuf);
2767 if (output_file != NULL)
2768 tmpname = output_file;
2770 tmpname = make_tempname (argv[i]);
2772 if (tmpname == NULL)
2774 non_fatal (_("could not create temporary file to hold stripped copy of '%s'"),
2781 copy_file (argv[i], tmpname, input_target, output_target);
2785 set_times (tmpname, &statbuf);
2786 if (output_file == NULL)
2787 smart_rename (tmpname, argv[i], preserve_dates);
2788 status = hold_status;
2791 unlink_if_ordinary (tmpname);
2792 if (output_file == NULL)
2800 copy_main (int argc, char *argv[])
2802 char * binary_architecture = NULL;
2803 char *input_filename = NULL;
2804 char *output_filename = NULL;
2805 char *input_target = NULL;
2806 char *output_target = NULL;
2807 bfd_boolean show_version = FALSE;
2808 bfd_boolean change_warn = TRUE;
2809 bfd_boolean formats_info = FALSE;
2811 struct section_list *p;
2812 struct stat statbuf;
2814 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
2815 copy_options, (int *) 0)) != EOF)
2820 copy_byte = atoi (optarg);
2822 fatal (_("byte number must be non-negative"));
2826 binary_architecture = optarg;
2830 interleave = atoi (optarg);
2832 fatal (_("interleave must be positive"));
2836 case 's': /* "source" - 'I' is preferred */
2837 input_target = optarg;
2841 case 'd': /* "destination" - 'O' is preferred */
2842 output_target = optarg;
2846 input_target = output_target = optarg;
2850 p = find_section_list (optarg, TRUE);
2852 fatal (_("%s both copied and removed"), optarg);
2854 sections_copied = TRUE;
2858 p = find_section_list (optarg, TRUE);
2860 fatal (_("%s both copied and removed"), optarg);
2862 sections_removed = TRUE;
2866 strip_symbols = STRIP_ALL;
2870 strip_symbols = STRIP_DEBUG;
2873 case OPTION_STRIP_UNNEEDED:
2874 strip_symbols = STRIP_UNNEEDED;
2877 case OPTION_ONLY_KEEP_DEBUG:
2878 strip_symbols = STRIP_NONDEBUG;
2881 case OPTION_KEEP_FILE_SYMBOLS:
2882 keep_file_symbols = 1;
2885 case OPTION_ADD_GNU_DEBUGLINK:
2886 gnu_debuglink_filename = optarg;
2890 add_specific_symbol (optarg, &keep_specific_list);
2894 add_specific_symbol (optarg, &strip_specific_list);
2897 case OPTION_STRIP_UNNEEDED_SYMBOL:
2898 add_specific_symbol (optarg, &strip_unneeded_list);
2902 add_specific_symbol (optarg, &localize_specific_list);
2905 case OPTION_GLOBALIZE_SYMBOL:
2906 add_specific_symbol (optarg, &globalize_specific_list);
2910 add_specific_symbol (optarg, &keepglobal_specific_list);
2914 add_specific_symbol (optarg, &weaken_specific_list);
2918 preserve_dates = TRUE;
2926 discard_locals = LOCALS_ALL;
2930 discard_locals = LOCALS_START_L;
2938 show_version = TRUE;
2941 case OPTION_FORMATS_INFO:
2942 formats_info = TRUE;
2949 case OPTION_ADD_SECTION:
2953 struct section_add *pa;
2958 s = strchr (optarg, '=');
2961 fatal (_("bad format for %s"), "--add-section");
2963 size = get_file_size (s + 1);
2970 pa = xmalloc (sizeof (struct section_add));
2973 name = xmalloc (len + 1);
2974 strncpy (name, optarg, len);
2978 pa->filename = s + 1;
2980 pa->contents = xmalloc (size);
2982 f = fopen (pa->filename, FOPEN_RB);
2985 fatal (_("cannot open: %s: %s"),
2986 pa->filename, strerror (errno));
2988 if (fread (pa->contents, 1, pa->size, f) == 0
2990 fatal (_("%s: fread failed"), pa->filename);
2994 pa->next = add_sections;
2999 case OPTION_CHANGE_START:
3000 change_start = parse_vma (optarg, "--change-start");
3003 case OPTION_CHANGE_SECTION_ADDRESS:
3004 case OPTION_CHANGE_SECTION_LMA:
3005 case OPTION_CHANGE_SECTION_VMA:
3010 char *option = NULL;
3012 enum change_action what = CHANGE_IGNORE;
3016 case OPTION_CHANGE_SECTION_ADDRESS:
3017 option = "--change-section-address";
3019 case OPTION_CHANGE_SECTION_LMA:
3020 option = "--change-section-lma";
3022 case OPTION_CHANGE_SECTION_VMA:
3023 option = "--change-section-vma";
3027 s = strchr (optarg, '=');
3030 s = strchr (optarg, '+');
3033 s = strchr (optarg, '-');
3035 fatal (_("bad format for %s"), option);
3040 name = xmalloc (len + 1);
3041 strncpy (name, optarg, len);
3044 p = find_section_list (name, TRUE);
3046 val = parse_vma (s + 1, option);
3050 case '=': what = CHANGE_SET; break;
3051 case '-': val = - val; /* Drop through. */
3052 case '+': what = CHANGE_MODIFY; break;
3057 case OPTION_CHANGE_SECTION_ADDRESS:
3058 p->change_vma = what;
3062 case OPTION_CHANGE_SECTION_LMA:
3063 p->change_lma = what;
3067 case OPTION_CHANGE_SECTION_VMA:
3068 p->change_vma = what;
3075 case OPTION_CHANGE_ADDRESSES:
3076 change_section_address = parse_vma (optarg, "--change-addresses");
3077 change_start = change_section_address;
3080 case OPTION_CHANGE_WARNINGS:
3084 case OPTION_CHANGE_LEADING_CHAR:
3085 change_leading_char = TRUE;
3088 case OPTION_DEBUGGING:
3089 convert_debugging = TRUE;
3092 case OPTION_GAP_FILL:
3094 bfd_vma gap_fill_vma;
3096 gap_fill_vma = parse_vma (optarg, "--gap-fill");
3097 gap_fill = (bfd_byte) gap_fill_vma;
3098 if ((bfd_vma) gap_fill != gap_fill_vma)
3102 sprintf_vma (buff, gap_fill_vma);
3104 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3107 gap_fill_set = TRUE;
3111 case OPTION_NO_CHANGE_WARNINGS:
3112 change_warn = FALSE;
3116 pad_to = parse_vma (optarg, "--pad-to");
3120 case OPTION_REMOVE_LEADING_CHAR:
3121 remove_leading_char = TRUE;
3124 case OPTION_REDEFINE_SYM:
3126 /* Push this redefinition onto redefine_symbol_list. */
3130 const char *nextarg;
3131 char *source, *target;
3133 s = strchr (optarg, '=');
3135 fatal (_("bad format for %s"), "--redefine-sym");
3138 source = xmalloc (len + 1);
3139 strncpy (source, optarg, len);
3143 len = strlen (nextarg);
3144 target = xmalloc (len + 1);
3145 strcpy (target, nextarg);
3147 redefine_list_append ("--redefine-sym", source, target);
3154 case OPTION_REDEFINE_SYMS:
3155 add_redefine_syms_file (optarg);
3158 case OPTION_SET_SECTION_FLAGS:
3164 s = strchr (optarg, '=');
3166 fatal (_("bad format for %s"), "--set-section-flags");
3169 name = xmalloc (len + 1);
3170 strncpy (name, optarg, len);
3173 p = find_section_list (name, TRUE);
3175 p->set_flags = TRUE;
3176 p->flags = parse_flags (s + 1);
3180 case OPTION_RENAME_SECTION:
3183 const char *eq, *fl;
3188 eq = strchr (optarg, '=');
3190 fatal (_("bad format for %s"), "--rename-section");
3194 fatal (_("bad format for %s"), "--rename-section");
3196 old_name = xmalloc (len + 1);
3197 strncpy (old_name, optarg, len);
3201 fl = strchr (eq, ',');
3204 flags = parse_flags (fl + 1);
3214 fatal (_("bad format for %s"), "--rename-section");
3216 new_name = xmalloc (len + 1);
3217 strncpy (new_name, eq, len);
3220 add_section_rename (old_name, new_name, flags);
3224 case OPTION_SET_START:
3225 set_start = parse_vma (optarg, "--set-start");
3226 set_start_set = TRUE;
3229 case OPTION_SREC_LEN:
3230 Chunk = parse_vma (optarg, "--srec-len");
3233 case OPTION_SREC_FORCES3:
3237 case OPTION_STRIP_SYMBOLS:
3238 add_specific_symbols (optarg, &strip_specific_list);
3241 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3242 add_specific_symbols (optarg, &strip_unneeded_list);
3245 case OPTION_KEEP_SYMBOLS:
3246 add_specific_symbols (optarg, &keep_specific_list);
3249 case OPTION_LOCALIZE_HIDDEN:
3250 localize_hidden = TRUE;
3253 case OPTION_LOCALIZE_SYMBOLS:
3254 add_specific_symbols (optarg, &localize_specific_list);
3257 case OPTION_GLOBALIZE_SYMBOLS:
3258 add_specific_symbols (optarg, &globalize_specific_list);
3261 case OPTION_KEEPGLOBAL_SYMBOLS:
3262 add_specific_symbols (optarg, &keepglobal_specific_list);
3265 case OPTION_WEAKEN_SYMBOLS:
3266 add_specific_symbols (optarg, &weaken_specific_list);
3269 case OPTION_ALT_MACH_CODE:
3270 use_alt_mach_code = strtoul (optarg, NULL, 0);
3271 if (use_alt_mach_code == 0)
3272 fatal (_("unable to parse alternative machine code"));
3275 case OPTION_PREFIX_SYMBOLS:
3276 prefix_symbols_string = optarg;
3279 case OPTION_PREFIX_SECTIONS:
3280 prefix_sections_string = optarg;
3283 case OPTION_PREFIX_ALLOC_SECTIONS:
3284 prefix_alloc_sections_string = optarg;
3287 case OPTION_READONLY_TEXT:
3288 bfd_flags_to_set |= WP_TEXT;
3289 bfd_flags_to_clear &= ~WP_TEXT;
3292 case OPTION_WRITABLE_TEXT:
3293 bfd_flags_to_clear |= WP_TEXT;
3294 bfd_flags_to_set &= ~WP_TEXT;
3298 bfd_flags_to_set |= D_PAGED;
3299 bfd_flags_to_clear &= ~D_PAGED;
3303 bfd_flags_to_clear |= D_PAGED;
3304 bfd_flags_to_set &= ~D_PAGED;
3307 case OPTION_EXTRACT_SYMBOL:
3308 extract_symbol = TRUE;
3311 case OPTION_REVERSE_BYTES:
3313 int prev = reverse_bytes;
3315 reverse_bytes = atoi (optarg);
3316 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
3317 fatal (_("number of bytes to reverse must be positive and even"));
3319 if (prev && prev != reverse_bytes)
3320 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
3326 /* We've been given a long option. */
3331 copy_usage (stdout, 0);
3334 copy_usage (stderr, 1);
3345 print_version ("objcopy");
3347 if (copy_byte >= interleave)
3348 fatal (_("byte number must be less than interleave"));
3350 if (optind == argc || optind + 2 < argc)
3351 copy_usage (stderr, 1);
3353 input_filename = argv[optind];
3354 if (optind + 1 < argc)
3355 output_filename = argv[optind + 1];
3357 /* Default is to strip no symbols. */
3358 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3359 strip_symbols = STRIP_NONE;
3361 if (output_target == NULL)
3362 output_target = input_target;
3364 if (binary_architecture != NULL)
3366 if (input_target && strcmp (input_target, "binary") == 0)
3368 const bfd_arch_info_type * temp_arch_info;
3370 temp_arch_info = bfd_scan_arch (binary_architecture);
3372 if (temp_arch_info != NULL)
3374 bfd_external_binary_architecture = temp_arch_info->arch;
3375 bfd_external_machine = temp_arch_info->mach;
3378 fatal (_("architecture %s unknown"), binary_architecture);
3382 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
3383 non_fatal (_(" Argument %s ignored"), binary_architecture);
3388 if (stat (input_filename, & statbuf) < 0)
3389 fatal (_("warning: could not locate '%s'. System error message: %s"),
3390 input_filename, strerror (errno));
3392 /* If there is no destination file, or the source and destination files
3393 are the same, then create a temp and rename the result into the input. */
3394 if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
3396 char *tmpname = make_tempname (input_filename);
3398 if (tmpname == NULL)
3399 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
3400 input_filename, strerror (errno));
3402 copy_file (input_filename, tmpname, input_target, output_target);
3406 set_times (tmpname, &statbuf);
3407 smart_rename (tmpname, input_filename, preserve_dates);
3414 copy_file (input_filename, output_filename, input_target, output_target);
3416 if (status == 0 && preserve_dates)
3417 set_times (output_filename, &statbuf);
3418 else if (status != 0)
3419 unlink_if_ordinary (output_filename);
3424 for (p = change_sections; p != NULL; p = p->next)
3428 if (p->change_vma != CHANGE_IGNORE)
3432 sprintf_vma (buff, p->vma_val);
3434 /* xgettext:c-format */
3435 non_fatal (_("%s %s%c0x%s never used"),
3436 "--change-section-vma",
3438 p->change_vma == CHANGE_SET ? '=' : '+',
3442 if (p->change_lma != CHANGE_IGNORE)
3446 sprintf_vma (buff, p->lma_val);
3448 /* xgettext:c-format */
3449 non_fatal (_("%s %s%c0x%s never used"),
3450 "--change-section-lma",
3452 p->change_lma == CHANGE_SET ? '=' : '+',
3463 main (int argc, char *argv[])
3465 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3466 setlocale (LC_MESSAGES, "");
3468 #if defined (HAVE_SETLOCALE)
3469 setlocale (LC_CTYPE, "");
3471 bindtextdomain (PACKAGE, LOCALEDIR);
3472 textdomain (PACKAGE);
3474 program_name = argv[0];
3475 xmalloc_set_program_name (program_name);
3477 START_PROGRESS (program_name, 0);
3479 expandargv (&argc, &argv);
3481 strip_symbols = STRIP_UNDEF;
3482 discard_locals = LOCALS_UNDEF;
3485 set_default_bfd_target ();
3489 int i = strlen (program_name);
3490 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3491 /* Drop the .exe suffix, if any. */
3492 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
3495 program_name[i] = '\0';
3498 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
3502 strip_main (argc, argv);
3504 copy_main (argc, argv);
3506 END_PROGRESS (program_name);