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, 2008, 2009, 2010, 2011, 2012, 2013
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 3 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"
34 #include "coff/internal.h"
37 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
38 header in generic PE code. */
39 #include "coff/i386.h"
42 static bfd_vma pe_file_alignment = (bfd_vma) -1;
43 static bfd_vma pe_heap_commit = (bfd_vma) -1;
44 static bfd_vma pe_heap_reserve = (bfd_vma) -1;
45 static bfd_vma pe_image_base = (bfd_vma) -1;
46 static bfd_vma pe_section_alignment = (bfd_vma) -1;
47 static bfd_vma pe_stack_commit = (bfd_vma) -1;
48 static bfd_vma pe_stack_reserve = (bfd_vma) -1;
49 static short pe_subsystem = -1;
50 static short pe_major_subsystem_version = -1;
51 static short pe_minor_subsystem_version = -1;
53 struct is_specified_symbol_predicate_data
59 /* A list to support redefine_sym. */
64 struct redefine_node *next;
67 typedef struct section_rename
69 const char * old_name;
70 const char * new_name;
72 struct section_rename * next;
76 /* List of sections to be renamed. */
77 static section_rename *section_rename_list;
79 static asymbol **isympp = NULL; /* Input symbols. */
80 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
82 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
83 static int copy_byte = -1;
84 static int interleave = 0; /* Initialised to 4 in copy_main(). */
85 static int copy_width = 1;
87 static bfd_boolean verbose; /* Print file and target names. */
88 static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
89 static int deterministic = -1; /* Enable deterministic archives. */
90 static int status = 0; /* Exit status. */
95 STRIP_NONE, /* Don't strip. */
96 STRIP_DEBUG, /* Strip all debugger symbols. */
97 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
98 STRIP_NONDEBUG, /* Strip everything but debug info. */
99 STRIP_DWO, /* Strip all DWO info. */
100 STRIP_NONDWO, /* Strip everything but DWO info. */
101 STRIP_ALL /* Strip all symbols. */
104 /* Which symbols to remove. */
105 static enum strip_action strip_symbols = STRIP_UNDEF;
110 LOCALS_START_L, /* Discard locals starting with L. */
111 LOCALS_ALL /* Discard all locals. */
114 /* Which local symbols to remove. Overrides STRIP_ALL. */
115 static enum locals_action discard_locals;
117 /* What kind of change to perform. */
125 /* Structure used to hold lists of sections and actions to take. */
128 struct section_list * next; /* Next section to change. */
129 const char * name; /* Section name. */
130 bfd_boolean used; /* Whether this entry was used. */
131 bfd_boolean remove; /* Whether to remove this section. */
132 bfd_boolean copy; /* Whether to copy this section. */
133 enum change_action change_vma;/* Whether to change or set VMA. */
134 bfd_vma vma_val; /* Amount to change by or set to. */
135 enum change_action change_lma;/* Whether to change or set LMA. */
136 bfd_vma lma_val; /* Amount to change by or set to. */
137 bfd_boolean set_flags; /* Whether to set the section flags. */
138 flagword flags; /* What to set the section flags to. */
141 static struct section_list *change_sections;
143 /* TRUE if some sections are to be removed. */
144 static bfd_boolean sections_removed;
146 /* TRUE if only some sections are to be copied. */
147 static bfd_boolean sections_copied;
149 /* Changes to the start address. */
150 static bfd_vma change_start = 0;
151 static bfd_boolean set_start_set = FALSE;
152 static bfd_vma set_start;
154 /* Changes to section addresses. */
155 static bfd_vma change_section_address = 0;
157 /* Filling gaps between sections. */
158 static bfd_boolean gap_fill_set = FALSE;
159 static bfd_byte gap_fill = 0;
161 /* Pad to a given address. */
162 static bfd_boolean pad_to_set = FALSE;
163 static bfd_vma pad_to;
165 /* Use alternative machine code? */
166 static unsigned long use_alt_mach_code = 0;
168 /* Output BFD flags user wants to set or clear */
169 static flagword bfd_flags_to_set;
170 static flagword bfd_flags_to_clear;
172 /* List of sections to add. */
175 /* Next section to add. */
176 struct section_add *next;
177 /* Name of section to add. */
179 /* Name of file holding section contents. */
180 const char *filename;
183 /* Contents of file. */
185 /* BFD section, after it has been added. */
189 /* List of sections to add to the output BFD. */
190 static struct section_add *add_sections;
192 /* If non-NULL the argument to --add-gnu-debuglink.
193 This should be the filename to store in the .gnu_debuglink section. */
194 static const char * gnu_debuglink_filename = NULL;
196 /* Whether to convert debugging information. */
197 static bfd_boolean convert_debugging = FALSE;
199 /* Whether to compress/decompress DWARF debug sections. */
205 } do_debug_sections = nothing;
207 /* Whether to change the leading character in symbol names. */
208 static bfd_boolean change_leading_char = FALSE;
210 /* Whether to remove the leading character from global symbol names. */
211 static bfd_boolean remove_leading_char = FALSE;
213 /* Whether to permit wildcard in symbol comparison. */
214 static bfd_boolean wildcard = FALSE;
216 /* True if --localize-hidden is in effect. */
217 static bfd_boolean localize_hidden = FALSE;
219 /* List of symbols to strip, keep, localize, keep-global, weaken,
221 static htab_t strip_specific_htab = NULL;
222 static htab_t strip_unneeded_htab = NULL;
223 static htab_t keep_specific_htab = NULL;
224 static htab_t localize_specific_htab = NULL;
225 static htab_t globalize_specific_htab = NULL;
226 static htab_t keepglobal_specific_htab = NULL;
227 static htab_t weaken_specific_htab = NULL;
228 static struct redefine_node *redefine_sym_list = NULL;
230 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
231 static bfd_boolean weaken = FALSE;
233 /* If this is TRUE, we retain BSF_FILE symbols. */
234 static bfd_boolean keep_file_symbols = FALSE;
236 /* Prefix symbols/sections. */
237 static char *prefix_symbols_string = 0;
238 static char *prefix_sections_string = 0;
239 static char *prefix_alloc_sections_string = 0;
241 /* True if --extract-symbol was passed on the command line. */
242 static bfd_boolean extract_symbol = FALSE;
244 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
245 of <reverse_bytes> bytes within each output section. */
246 static int reverse_bytes = 0;
248 /* For Coff objects, we may want to allow or disallow long section names,
249 or preserve them where found in the inputs. Debug info relies on them. */
250 enum long_section_name_handling
257 /* The default long section handling mode is to preserve them.
258 This is also the only behaviour for 'strip'. */
259 static enum long_section_name_handling long_section_names = KEEP;
261 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
262 enum command_line_switch
264 OPTION_ADD_SECTION=150,
265 OPTION_CHANGE_ADDRESSES,
266 OPTION_CHANGE_LEADING_CHAR,
268 OPTION_CHANGE_SECTION_ADDRESS,
269 OPTION_CHANGE_SECTION_LMA,
270 OPTION_CHANGE_SECTION_VMA,
271 OPTION_CHANGE_WARNINGS,
272 OPTION_COMPRESS_DEBUG_SECTIONS,
274 OPTION_DECOMPRESS_DEBUG_SECTIONS,
276 OPTION_NO_CHANGE_WARNINGS,
278 OPTION_REMOVE_LEADING_CHAR,
279 OPTION_SET_SECTION_FLAGS,
281 OPTION_STRIP_UNNEEDED,
284 OPTION_REDEFINE_SYMS,
287 OPTION_STRIP_SYMBOLS,
288 OPTION_STRIP_UNNEEDED_SYMBOL,
289 OPTION_STRIP_UNNEEDED_SYMBOLS,
291 OPTION_LOCALIZE_HIDDEN,
292 OPTION_LOCALIZE_SYMBOLS,
293 OPTION_LONG_SECTION_NAMES,
294 OPTION_GLOBALIZE_SYMBOL,
295 OPTION_GLOBALIZE_SYMBOLS,
296 OPTION_KEEPGLOBAL_SYMBOLS,
297 OPTION_WEAKEN_SYMBOLS,
298 OPTION_RENAME_SECTION,
299 OPTION_ALT_MACH_CODE,
300 OPTION_PREFIX_SYMBOLS,
301 OPTION_PREFIX_SECTIONS,
302 OPTION_PREFIX_ALLOC_SECTIONS,
304 OPTION_ADD_GNU_DEBUGLINK,
305 OPTION_ONLY_KEEP_DEBUG,
306 OPTION_KEEP_FILE_SYMBOLS,
307 OPTION_READONLY_TEXT,
308 OPTION_WRITABLE_TEXT,
311 OPTION_EXTRACT_SYMBOL,
312 OPTION_REVERSE_BYTES,
313 OPTION_FILE_ALIGNMENT,
316 OPTION_SECTION_ALIGNMENT,
318 OPTION_INTERLEAVE_WIDTH,
324 /* Options to handle if running as "strip". */
326 static struct option strip_options[] =
328 {"disable-deterministic-archives", no_argument, 0, 'U'},
329 {"discard-all", no_argument, 0, 'x'},
330 {"discard-locals", no_argument, 0, 'X'},
331 {"enable-deterministic-archives", no_argument, 0, 'D'},
332 {"format", required_argument, 0, 'F'}, /* Obsolete */
333 {"help", no_argument, 0, 'h'},
334 {"info", no_argument, 0, OPTION_FORMATS_INFO},
335 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
336 {"input-target", required_argument, 0, 'I'},
337 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
338 {"keep-symbol", required_argument, 0, 'K'},
339 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
340 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
341 {"output-target", required_argument, 0, 'O'},
342 {"output-file", required_argument, 0, 'o'},
343 {"preserve-dates", no_argument, 0, 'p'},
344 {"remove-section", required_argument, 0, 'R'},
345 {"strip-all", no_argument, 0, 's'},
346 {"strip-debug", no_argument, 0, 'S'},
347 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
348 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
349 {"strip-symbol", required_argument, 0, 'N'},
350 {"target", required_argument, 0, 'F'},
351 {"verbose", no_argument, 0, 'v'},
352 {"version", no_argument, 0, 'V'},
353 {"wildcard", no_argument, 0, 'w'},
354 {0, no_argument, 0, 0}
357 /* Options to handle if running as "objcopy". */
359 static struct option copy_options[] =
361 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
362 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
363 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
364 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
365 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
366 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
367 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
368 {"binary-architecture", required_argument, 0, 'B'},
369 {"byte", required_argument, 0, 'b'},
370 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
371 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
372 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
373 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
374 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
375 {"change-start", required_argument, 0, OPTION_CHANGE_START},
376 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
377 {"compress-debug-sections", no_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS},
378 {"debugging", no_argument, 0, OPTION_DEBUGGING},
379 {"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS},
380 {"disable-deterministic-archives", no_argument, 0, 'U'},
381 {"discard-all", no_argument, 0, 'x'},
382 {"discard-locals", no_argument, 0, 'X'},
383 {"enable-deterministic-archives", no_argument, 0, 'D'},
384 {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO},
385 {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
386 {"format", required_argument, 0, 'F'}, /* Obsolete */
387 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
388 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
389 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
390 {"help", no_argument, 0, 'h'},
391 {"impure", no_argument, 0, OPTION_IMPURE},
392 {"info", no_argument, 0, OPTION_FORMATS_INFO},
393 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
394 {"input-target", required_argument, 0, 'I'},
395 {"interleave", optional_argument, 0, 'i'},
396 {"interleave-width", required_argument, 0, OPTION_INTERLEAVE_WIDTH},
397 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
398 {"keep-global-symbol", required_argument, 0, 'G'},
399 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
400 {"keep-symbol", required_argument, 0, 'K'},
401 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
402 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
403 {"localize-symbol", required_argument, 0, 'L'},
404 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
405 {"long-section-names", required_argument, 0, OPTION_LONG_SECTION_NAMES},
406 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
407 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
408 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
409 {"only-section", required_argument, 0, 'j'},
410 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
411 {"output-target", required_argument, 0, 'O'},
412 {"pad-to", required_argument, 0, OPTION_PAD_TO},
413 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
414 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
415 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
416 {"preserve-dates", no_argument, 0, 'p'},
417 {"pure", no_argument, 0, OPTION_PURE},
418 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
419 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
420 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
421 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
422 {"remove-section", required_argument, 0, 'R'},
423 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
424 {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
425 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
426 {"set-start", required_argument, 0, OPTION_SET_START},
427 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
428 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
429 {"strip-all", no_argument, 0, 'S'},
430 {"strip-debug", no_argument, 0, 'g'},
431 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
432 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
433 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
434 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
435 {"strip-symbol", required_argument, 0, 'N'},
436 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
437 {"target", required_argument, 0, 'F'},
438 {"verbose", no_argument, 0, 'v'},
439 {"version", no_argument, 0, 'V'},
440 {"weaken", no_argument, 0, OPTION_WEAKEN},
441 {"weaken-symbol", required_argument, 0, 'W'},
442 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
443 {"wildcard", no_argument, 0, 'w'},
444 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
445 {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT},
446 {"heap", required_argument, 0, OPTION_HEAP},
447 {"image-base", required_argument, 0 , OPTION_IMAGE_BASE},
448 {"section-alignment", required_argument, 0, OPTION_SECTION_ALIGNMENT},
449 {"stack", required_argument, 0, OPTION_STACK},
450 {"subsystem", required_argument, 0, OPTION_SUBSYSTEM},
451 {0, no_argument, 0, 0}
455 extern char *program_name;
457 /* This flag distinguishes between strip and objcopy:
458 1 means this is 'strip'; 0 means this is 'objcopy'.
459 -1 means if we should use argv[0] to decide. */
462 /* The maximum length of an S record. This variable is declared in srec.c
463 and can be modified by the --srec-len parameter. */
464 extern unsigned int Chunk;
466 /* Restrict the generation of Srecords to type S3 only.
467 This variable is declare in bfd/srec.c and can be toggled
468 on by the --srec-forceS3 command line switch. */
469 extern bfd_boolean S3Forced;
471 /* Forward declarations. */
472 static void setup_section (bfd *, asection *, void *);
473 static void setup_bfd_headers (bfd *, bfd *);
474 static void copy_relocations_in_section (bfd *, asection *, void *);
475 static void copy_section (bfd *, asection *, void *);
476 static void get_sections (bfd *, asection *, void *);
477 static int compare_section_lma (const void *, const void *);
478 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
479 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
480 static const char *lookup_sym_redefinition (const char *);
483 copy_usage (FILE *stream, int exit_status)
485 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
486 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
487 fprintf (stream, _(" The options are:\n"));
488 fprintf (stream, _("\
489 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
490 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
491 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
492 -F --target <bfdname> Set both input and output format to <bfdname>\n\
493 --debugging Convert debugging information, if possible\n\
494 -p --preserve-dates Copy modified/access timestamps to the output\n"));
495 if (DEFAULT_AR_DETERMINISTIC)
496 fprintf (stream, _("\
497 -D --enable-deterministic-archives\n\
498 Produce deterministic output when stripping archives (default)\n\
499 -U --disable-deterministic-archives\n\
500 Disable -D behavior\n"));
502 fprintf (stream, _("\
503 -D --enable-deterministic-archives\n\
504 Produce deterministic output when stripping archives\n\
505 -U --disable-deterministic-archives\n\
506 Disable -D behavior (default)\n"));
507 fprintf (stream, _("\
508 -j --only-section <name> Only copy section <name> into the output\n\
509 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
510 -R --remove-section <name> Remove section <name> from the output\n\
511 -S --strip-all Remove all symbol and relocation information\n\
512 -g --strip-debug Remove all debugging symbols & sections\n\
513 --strip-dwo Remove all DWO sections\n\
514 --strip-unneeded Remove all symbols not needed by relocations\n\
515 -N --strip-symbol <name> Do not copy symbol <name>\n\
516 --strip-unneeded-symbol <name>\n\
517 Do not copy symbol <name> unless needed by\n\
519 --only-keep-debug Strip everything but the debug information\n\
520 --extract-dwo Copy only DWO sections\n\
521 --extract-symbol Remove section contents but keep symbols\n\
522 -K --keep-symbol <name> Do not strip symbol <name>\n\
523 --keep-file-symbols Do not strip file symbol(s)\n\
524 --localize-hidden Turn all ELF hidden symbols into locals\n\
525 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
526 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
527 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
528 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
529 --weaken Force all global symbols to be marked as weak\n\
530 -w --wildcard Permit wildcard in symbol comparison\n\
531 -x --discard-all Remove all non-global symbols\n\
532 -X --discard-locals Remove any compiler-generated symbols\n\
533 -i --interleave [<number>] Only copy N out of every <number> bytes\n\
534 --interleave-width <number> Set N for --interleave\n\
535 -b --byte <num> Select byte <num> in every interleaved block\n\
536 --gap-fill <val> Fill gaps between sections with <val>\n\
537 --pad-to <addr> Pad the last section up to address <addr>\n\
538 --set-start <addr> Set the start address to <addr>\n\
539 {--change-start|--adjust-start} <incr>\n\
540 Add <incr> to the start address\n\
541 {--change-addresses|--adjust-vma} <incr>\n\
542 Add <incr> to LMA, VMA and start addresses\n\
543 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
544 Change LMA and VMA of section <name> by <val>\n\
545 --change-section-lma <name>{=|+|-}<val>\n\
546 Change the LMA of section <name> by <val>\n\
547 --change-section-vma <name>{=|+|-}<val>\n\
548 Change the VMA of section <name> by <val>\n\
549 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
550 Warn if a named section does not exist\n\
551 --set-section-flags <name>=<flags>\n\
552 Set section <name>'s properties to <flags>\n\
553 --add-section <name>=<file> Add section <name> found in <file> to output\n\
554 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
555 --long-section-names {enable|disable|keep}\n\
556 Handle long section names in Coff objects.\n\
557 --change-leading-char Force output format's leading character style\n\
558 --remove-leading-char Remove leading character from global symbols\n\
559 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
560 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
561 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
563 --srec-len <number> Restrict the length of generated Srecords\n\
564 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
565 --strip-symbols <file> -N for all symbols listed in <file>\n\
566 --strip-unneeded-symbols <file>\n\
567 --strip-unneeded-symbol for all symbols listed\n\
569 --keep-symbols <file> -K for all symbols listed in <file>\n\
570 --localize-symbols <file> -L for all symbols listed in <file>\n\
571 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
572 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
573 --weaken-symbols <file> -W for all symbols listed in <file>\n\
574 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
575 --writable-text Mark the output text as writable\n\
576 --readonly-text Make the output text write protected\n\
577 --pure Mark the output file as demand paged\n\
578 --impure Mark the output file as impure\n\
579 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
580 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
581 --prefix-alloc-sections <prefix>\n\
582 Add <prefix> to start of every allocatable\n\
584 --file-alignment <num> Set PE file alignment to <num>\n\
585 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
587 --image-base <address> Set PE image base to <address>\n\
588 --section-alignment <num> Set PE section alignment to <num>\n\
589 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
591 --subsystem <name>[:<version>]\n\
592 Set PE subsystem to <name> [& <version>]\n\
593 --compress-debug-sections Compress DWARF debug sections using zlib\n\
594 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
595 -v --verbose List all object files modified\n\
596 @<file> Read options from <file>\n\
597 -V --version Display this program's version number\n\
598 -h --help Display this output\n\
599 --info List object formats & architectures supported\n\
601 list_supported_targets (program_name, stream);
602 if (REPORT_BUGS_TO[0] && exit_status == 0)
603 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
608 strip_usage (FILE *stream, int exit_status)
610 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
611 fprintf (stream, _(" Removes symbols and sections from files\n"));
612 fprintf (stream, _(" The options are:\n"));
613 fprintf (stream, _("\
614 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
615 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
616 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
617 -p --preserve-dates Copy modified/access timestamps to the output\n\
619 if (DEFAULT_AR_DETERMINISTIC)
620 fprintf (stream, _("\
621 -D --enable-deterministic-archives\n\
622 Produce deterministic output when stripping archives (default)\n\
623 -U --disable-deterministic-archives\n\
624 Disable -D behavior\n"));
626 fprintf (stream, _("\
627 -D --enable-deterministic-archives\n\
628 Produce deterministic output when stripping archives\n\
629 -U --disable-deterministic-archives\n\
630 Disable -D behavior (default)\n"));
631 fprintf (stream, _("\
632 -R --remove-section=<name> Remove section <name> from the output\n\
633 -s --strip-all Remove all symbol and relocation information\n\
634 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
635 --strip-dwo Remove all DWO sections\n\
636 --strip-unneeded Remove all symbols not needed by relocations\n\
637 --only-keep-debug Strip everything but the debug information\n\
638 -N --strip-symbol=<name> Do not copy symbol <name>\n\
639 -K --keep-symbol=<name> Do not strip symbol <name>\n\
640 --keep-file-symbols Do not strip file symbol(s)\n\
641 -w --wildcard Permit wildcard in symbol comparison\n\
642 -x --discard-all Remove all non-global symbols\n\
643 -X --discard-locals Remove any compiler-generated symbols\n\
644 -v --verbose List all object files modified\n\
645 -V --version Display this program's version number\n\
646 -h --help Display this output\n\
647 --info List object formats & architectures supported\n\
648 -o <file> Place stripped output into <file>\n\
651 list_supported_targets (program_name, stream);
652 if (REPORT_BUGS_TO[0] && exit_status == 0)
653 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
657 /* Parse section flags into a flagword, with a fatal error if the
658 string can't be parsed. */
661 parse_flags (const char *s)
671 snext = strchr (s, ',');
681 #define PARSE_FLAG(fname,fval) \
682 else if (strncasecmp (fname, s, len) == 0) ret |= fval
683 PARSE_FLAG ("alloc", SEC_ALLOC);
684 PARSE_FLAG ("load", SEC_LOAD);
685 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
686 PARSE_FLAG ("readonly", SEC_READONLY);
687 PARSE_FLAG ("debug", SEC_DEBUGGING);
688 PARSE_FLAG ("code", SEC_CODE);
689 PARSE_FLAG ("data", SEC_DATA);
690 PARSE_FLAG ("rom", SEC_ROM);
691 PARSE_FLAG ("share", SEC_COFF_SHARED);
692 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
698 copy = (char *) xmalloc (len + 1);
699 strncpy (copy, s, len);
701 non_fatal (_("unrecognized section flag `%s'"), copy);
702 fatal (_("supported flags: %s"),
703 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
713 /* Find and optionally add an entry in the change_sections list. */
715 static struct section_list *
716 find_section_list (const char *name, bfd_boolean add)
718 struct section_list *p;
720 for (p = change_sections; p != NULL; p = p->next)
721 if (strcmp (p->name, name) == 0)
727 p = (struct section_list *) xmalloc (sizeof (struct section_list));
732 p->change_vma = CHANGE_IGNORE;
733 p->change_lma = CHANGE_IGNORE;
736 p->set_flags = FALSE;
739 p->next = change_sections;
745 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
748 eq_string (const void *s1, const void *s2)
750 return strcmp ((const char *) s1, (const char *) s2) == 0;
754 create_symbol_htab (void)
756 return htab_create_alloc (16, htab_hash_string, eq_string, NULL, xcalloc, free);
760 create_symbol_htabs (void)
762 strip_specific_htab = create_symbol_htab ();
763 strip_unneeded_htab = create_symbol_htab ();
764 keep_specific_htab = create_symbol_htab ();
765 localize_specific_htab = create_symbol_htab ();
766 globalize_specific_htab = create_symbol_htab ();
767 keepglobal_specific_htab = create_symbol_htab ();
768 weaken_specific_htab = create_symbol_htab ();
771 /* Add a symbol to strip_specific_list. */
774 add_specific_symbol (const char *name, htab_t htab)
776 *htab_find_slot (htab, name, INSERT) = (char *) name;
779 /* Add symbols listed in `filename' to strip_specific_list. */
781 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
782 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
785 add_specific_symbols (const char *filename, htab_t htab)
791 unsigned int line_count;
793 size = get_file_size (filename);
800 buffer = (char *) xmalloc (size + 2);
801 f = fopen (filename, FOPEN_RT);
803 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
805 if (fread (buffer, 1, size, f) == 0 || ferror (f))
806 fatal (_("%s: fread failed"), filename);
809 buffer [size] = '\n';
810 buffer [size + 1] = '\0';
814 for (line = buffer; * line != '\0'; line ++)
819 int finished = FALSE;
821 for (eol = line;; eol ++)
827 /* Cope with \n\r. */
835 /* Cope with \r\n. */
846 /* Line comment, Terminate the line here, in case a
847 name is present and then allow the rest of the
848 loop to find the real end of the line. */
860 /* A name may now exist somewhere between 'line' and 'eol'.
861 Strip off leading whitespace and trailing whitespace,
862 then add it to the list. */
863 for (name = line; IS_WHITESPACE (* name); name ++)
865 for (name_end = name;
866 (! IS_WHITESPACE (* name_end))
867 && (! IS_LINE_TERMINATOR (* name_end));
871 if (! IS_LINE_TERMINATOR (* name_end))
875 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
878 if (! IS_LINE_TERMINATOR (* extra))
879 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
880 filename, line_count);
886 add_specific_symbol (name, htab);
888 /* Advance line pointer to end of line. The 'eol ++' in the for
889 loop above will then advance us to the start of the next line. */
895 /* See whether a symbol should be stripped or kept
896 based on strip_specific_list and keep_symbols. */
899 is_specified_symbol_predicate (void **slot, void *data)
901 struct is_specified_symbol_predicate_data *d =
902 (struct is_specified_symbol_predicate_data *) data;
903 const char *slot_name = (char *) *slot;
905 if (*slot_name != '!')
907 if (! fnmatch (slot_name, d->name, 0))
910 /* Stop traversal. */
916 if (fnmatch (slot_name + 1, d->name, 0))
919 /* Stop traversal. */
924 /* Continue traversal. */
929 is_specified_symbol (const char *name, htab_t htab)
933 struct is_specified_symbol_predicate_data data;
938 htab_traverse (htab, is_specified_symbol_predicate, &data);
943 return htab_find (htab, name) != NULL;
946 /* Return a pointer to the symbol used as a signature for GROUP. */
949 group_signature (asection *group)
951 bfd *abfd = group->owner;
952 Elf_Internal_Shdr *ghdr;
954 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
957 ghdr = &elf_section_data (group)->this_hdr;
958 if (ghdr->sh_link < elf_numsections (abfd))
960 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
961 Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
963 if (symhdr->sh_type == SHT_SYMTAB
964 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
965 return isympp[ghdr->sh_info - 1];
970 /* Return TRUE if the section is a DWO section. */
973 is_dwo_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
975 const char *name = bfd_get_section_name (abfd, sec);
976 int len = strlen (name);
978 return strncmp (name + len - 4, ".dwo", 4) == 0;
981 /* See if a non-group section is being removed. */
984 is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
986 if (sections_removed || sections_copied)
988 struct section_list *p;
990 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE);
992 if (sections_removed && p != NULL && p->remove)
994 if (sections_copied && (p == NULL || ! p->copy))
998 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
1000 if (strip_symbols == STRIP_DEBUG
1001 || strip_symbols == STRIP_UNNEEDED
1002 || strip_symbols == STRIP_ALL
1003 || discard_locals == LOCALS_ALL
1004 || convert_debugging)
1006 /* By default we don't want to strip .reloc section.
1007 This section has for pe-coff special meaning. See
1008 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1009 if (strcmp (bfd_get_section_name (abfd, sec), ".reloc") != 0)
1013 if (strip_symbols == STRIP_DWO)
1014 return is_dwo_section (abfd, sec);
1016 if (strip_symbols == STRIP_NONDEBUG)
1020 if (strip_symbols == STRIP_NONDWO)
1021 return !is_dwo_section (abfd, sec);
1026 /* See if a section is being removed. */
1029 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1031 if (is_strip_section_1 (abfd, sec))
1034 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
1038 asection *elt, *first;
1041 If we are going to strip the group signature symbol, then
1042 strip the group section too. */
1043 gsym = group_signature (sec);
1048 if ((strip_symbols == STRIP_ALL
1049 && !is_specified_symbol (gname, keep_specific_htab))
1050 || is_specified_symbol (gname, strip_specific_htab))
1053 /* Remove the group section if all members are removed. */
1054 first = elt = elf_next_in_group (sec);
1057 if (!is_strip_section_1 (abfd, elt))
1059 elt = elf_next_in_group (elt);
1070 /* Return true if SYM is a hidden symbol. */
1073 is_hidden_symbol (asymbol *sym)
1075 elf_symbol_type *elf_sym;
1077 elf_sym = elf_symbol_from (sym->the_bfd, sym);
1078 if (elf_sym != NULL)
1079 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
1088 /* Choose which symbol entries to copy; put the result in OSYMS.
1089 We don't copy in place, because that confuses the relocs.
1090 Return the number of symbols to print. */
1093 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
1094 asymbol **isyms, long symcount)
1096 asymbol **from = isyms, **to = osyms;
1097 long src_count = 0, dst_count = 0;
1098 int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
1100 for (; src_count < symcount; src_count++)
1102 asymbol *sym = from[src_count];
1103 flagword flags = sym->flags;
1104 char *name = (char *) bfd_asymbol_name (sym);
1106 bfd_boolean used_in_reloc = FALSE;
1107 bfd_boolean undefined;
1108 bfd_boolean rem_leading_char;
1109 bfd_boolean add_leading_char;
1111 undefined = bfd_is_und_section (bfd_get_section (sym));
1113 if (redefine_sym_list)
1115 char *old_name, *new_name;
1117 old_name = (char *) bfd_asymbol_name (sym);
1118 new_name = (char *) lookup_sym_redefinition (old_name);
1119 bfd_asymbol_name (sym) = new_name;
1123 /* Check if we will remove the current leading character. */
1125 (name[0] == bfd_get_symbol_leading_char (abfd))
1126 && (change_leading_char
1127 || (remove_leading_char
1128 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1130 || bfd_is_com_section (bfd_get_section (sym)))));
1132 /* Check if we will add a new leading character. */
1135 && (bfd_get_symbol_leading_char (obfd) != '\0')
1136 && (bfd_get_symbol_leading_char (abfd) == '\0'
1137 || (name[0] == bfd_get_symbol_leading_char (abfd)));
1139 /* Short circuit for change_leading_char if we can do it in-place. */
1140 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
1142 name[0] = bfd_get_symbol_leading_char (obfd);
1143 bfd_asymbol_name (sym) = name;
1144 rem_leading_char = FALSE;
1145 add_leading_char = FALSE;
1148 /* Remove leading char. */
1149 if (rem_leading_char)
1150 bfd_asymbol_name (sym) = ++name;
1152 /* Add new leading char and/or prefix. */
1153 if (add_leading_char || prefix_symbols_string)
1157 ptr = n = (char *) xmalloc (1 + strlen (prefix_symbols_string)
1158 + strlen (name) + 1);
1159 if (add_leading_char)
1160 *ptr++ = bfd_get_symbol_leading_char (obfd);
1162 if (prefix_symbols_string)
1164 strcpy (ptr, prefix_symbols_string);
1165 ptr += strlen (prefix_symbols_string);
1169 bfd_asymbol_name (sym) = n;
1173 if (strip_symbols == STRIP_ALL)
1175 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
1176 || ((flags & BSF_SECTION_SYM) != 0
1177 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
1181 used_in_reloc = TRUE;
1183 else if (relocatable /* Relocatable file. */
1184 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1185 || bfd_is_com_section (bfd_get_section (sym))))
1187 else if (bfd_decode_symclass (sym) == 'I')
1188 /* Global symbols in $idata sections need to be retained
1189 even if relocatable is FALSE. External users of the
1190 library containing the $idata section may reference these
1193 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1194 || (flags & BSF_WEAK) != 0
1196 || bfd_is_com_section (bfd_get_section (sym)))
1197 keep = strip_symbols != STRIP_UNNEEDED;
1198 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1199 keep = (strip_symbols != STRIP_DEBUG
1200 && strip_symbols != STRIP_UNNEEDED
1201 && ! convert_debugging);
1202 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
1203 /* COMDAT sections store special information in local
1204 symbols, so we cannot risk stripping any of them. */
1206 else /* Local symbol. */
1207 keep = (strip_symbols != STRIP_UNNEEDED
1208 && (discard_locals != LOCALS_ALL
1209 && (discard_locals != LOCALS_START_L
1210 || ! bfd_is_local_label (abfd, sym))));
1212 if (keep && is_specified_symbol (name, strip_specific_htab))
1214 /* There are multiple ways to set 'keep' above, but if it
1215 was the relocatable symbol case, then that's an error. */
1218 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1226 && !(flags & BSF_KEEP)
1227 && is_specified_symbol (name, strip_unneeded_htab))
1231 && ((keep_file_symbols && (flags & BSF_FILE))
1232 || is_specified_symbol (name, keep_specific_htab)))
1235 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
1240 if ((flags & BSF_GLOBAL) != 0
1241 && (weaken || is_specified_symbol (name, weaken_specific_htab)))
1243 sym->flags &= ~ BSF_GLOBAL;
1244 sym->flags |= BSF_WEAK;
1248 && (flags & (BSF_GLOBAL | BSF_WEAK))
1249 && (is_specified_symbol (name, localize_specific_htab)
1250 || (htab_elements (keepglobal_specific_htab) != 0
1251 && ! is_specified_symbol (name, keepglobal_specific_htab))
1252 || (localize_hidden && is_hidden_symbol (sym))))
1254 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1255 sym->flags |= BSF_LOCAL;
1259 && (flags & BSF_LOCAL)
1260 && is_specified_symbol (name, globalize_specific_htab))
1262 sym->flags &= ~ BSF_LOCAL;
1263 sym->flags |= BSF_GLOBAL;
1266 to[dst_count++] = sym;
1270 to[dst_count] = NULL;
1275 /* Find the redefined name of symbol SOURCE. */
1278 lookup_sym_redefinition (const char *source)
1280 struct redefine_node *list;
1282 for (list = redefine_sym_list; list != NULL; list = list->next)
1283 if (strcmp (source, list->source) == 0)
1284 return list->target;
1289 /* Add a node to a symbol redefine list. */
1292 redefine_list_append (const char *cause, const char *source, const char *target)
1294 struct redefine_node **p;
1295 struct redefine_node *list;
1296 struct redefine_node *new_node;
1298 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1300 if (strcmp (source, list->source) == 0)
1301 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1304 if (strcmp (target, list->target) == 0)
1305 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1309 new_node = (struct redefine_node *) xmalloc (sizeof (struct redefine_node));
1311 new_node->source = strdup (source);
1312 new_node->target = strdup (target);
1313 new_node->next = NULL;
1318 /* Handle the --redefine-syms option. Read lines containing "old new"
1319 from the file, and add them to the symbol redefine list. */
1322 add_redefine_syms_file (const char *filename)
1331 file = fopen (filename, "r");
1333 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1334 filename, strerror (errno));
1337 buf = (char *) xmalloc (bufsize + 1 /* For the terminating NUL. */);
1345 /* Collect the input symbol name. */
1346 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1354 buf = (char *) xrealloc (buf, bufsize + 1);
1362 /* Eat white space between the symbol names. */
1363 while (IS_WHITESPACE (c))
1365 if (c == '#' || IS_LINE_TERMINATOR (c))
1370 /* Collect the output symbol name. */
1372 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1380 buf = (char *) xrealloc (buf, bufsize + 1);
1388 /* Eat white space at end of line. */
1389 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1394 if ((c == '\r' && (c = getc (file)) == '\n')
1395 || c == '\n' || c == EOF)
1398 /* Append the redefinition to the list. */
1400 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1411 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1413 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1414 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1417 /* Eat the rest of the line and finish it. */
1418 while (c != '\n' && c != EOF)
1424 fatal (_("%s:%d: premature end of file"), filename, lineno);
1429 /* Copy unkown object file IBFD onto OBFD.
1430 Returns TRUE upon success, FALSE otherwise. */
1433 copy_unknown_object (bfd *ibfd, bfd *obfd)
1441 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1443 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1450 non_fatal (_("stat returns negative size for `%s'"),
1451 bfd_get_archive_filename (ibfd));
1455 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1457 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1462 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1463 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1465 cbuf = (char *) xmalloc (BUFSIZE);
1467 while (ncopied < size)
1469 tocopy = size - ncopied;
1470 if (tocopy > BUFSIZE)
1473 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1474 != (bfd_size_type) tocopy)
1476 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1481 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1482 != (bfd_size_type) tocopy)
1484 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1492 /* We should at least to be able to read it back when copying an
1493 unknown object in an archive. */
1494 chmod (bfd_get_filename (obfd), buf.st_mode | S_IRUSR);
1499 /* Copy object file IBFD onto OBFD.
1500 Returns TRUE upon success, FALSE otherwise. */
1503 copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
1507 asection **osections = NULL;
1508 asection *gnu_debuglink_section = NULL;
1509 bfd_size_type *gaps = NULL;
1510 bfd_size_type max_gap = 0;
1513 enum bfd_architecture iarch;
1516 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1517 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1518 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1519 fatal (_("Unable to change endianness of input file(s)"));
1521 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1523 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1528 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1529 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1530 bfd_get_filename (obfd), bfd_get_target (obfd));
1539 start = bfd_get_start_address (ibfd);
1540 start += change_start;
1543 /* Neither the start address nor the flags
1544 need to be set for a core file. */
1545 if (bfd_get_format (obfd) != bfd_core)
1549 flags = bfd_get_file_flags (ibfd);
1550 flags |= bfd_flags_to_set;
1551 flags &= ~bfd_flags_to_clear;
1552 flags &= bfd_applicable_file_flags (obfd);
1554 if (strip_symbols == STRIP_ALL)
1555 flags &= ~HAS_RELOC;
1557 if (!bfd_set_start_address (obfd, start)
1558 || !bfd_set_file_flags (obfd, flags))
1560 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1565 /* Copy architecture of input file to output file. */
1566 iarch = bfd_get_arch (ibfd);
1567 imach = bfd_get_mach (ibfd);
1570 if (bfd_get_arch_info (ibfd) == NULL
1571 || bfd_get_arch_info (ibfd)->arch == bfd_arch_unknown)
1573 iarch = input_arch->arch;
1574 imach = input_arch->mach;
1577 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1578 bfd_get_archive_filename (ibfd));
1580 if (!bfd_set_arch_mach (obfd, iarch, imach)
1581 && (ibfd->target_defaulted
1582 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1584 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1585 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1586 bfd_get_archive_filename (ibfd));
1588 non_fatal (_("Output file cannot represent architecture `%s'"),
1589 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1590 bfd_get_mach (ibfd)));
1594 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1596 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1600 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
1601 && bfd_pei_p (obfd))
1603 /* Set up PE parameters. */
1604 pe_data_type *pe = pe_data (obfd);
1606 /* Copy PE parameters before changing them. */
1607 if (ibfd->xvec->flavour == bfd_target_coff_flavour
1608 && bfd_pei_p (ibfd))
1609 pe->pe_opthdr = pe_data (ibfd)->pe_opthdr;
1611 if (pe_file_alignment != (bfd_vma) -1)
1612 pe->pe_opthdr.FileAlignment = pe_file_alignment;
1614 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
1616 if (pe_heap_commit != (bfd_vma) -1)
1617 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_commit;
1619 if (pe_heap_reserve != (bfd_vma) -1)
1620 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_reserve;
1622 if (pe_image_base != (bfd_vma) -1)
1623 pe->pe_opthdr.ImageBase = pe_image_base;
1625 if (pe_section_alignment != (bfd_vma) -1)
1626 pe->pe_opthdr.SectionAlignment = pe_section_alignment;
1628 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
1630 if (pe_stack_commit != (bfd_vma) -1)
1631 pe->pe_opthdr.SizeOfStackCommit = pe_stack_commit;
1633 if (pe_stack_reserve != (bfd_vma) -1)
1634 pe->pe_opthdr.SizeOfStackCommit = pe_stack_reserve;
1636 if (pe_subsystem != -1)
1637 pe->pe_opthdr.Subsystem = pe_subsystem;
1639 if (pe_major_subsystem_version != -1)
1640 pe->pe_opthdr.MajorSubsystemVersion = pe_major_subsystem_version;
1642 if (pe_minor_subsystem_version != -1)
1643 pe->pe_opthdr.MinorSubsystemVersion = pe_minor_subsystem_version;
1645 if (pe_file_alignment > pe_section_alignment)
1647 char file_alignment[20], section_alignment[20];
1649 sprintf_vma (file_alignment, pe_file_alignment);
1650 sprintf_vma (section_alignment, pe_section_alignment);
1651 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1653 file_alignment, section_alignment);
1660 if (osympp != isympp)
1666 symsize = bfd_get_symtab_upper_bound (ibfd);
1669 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1673 osympp = isympp = (asymbol **) xmalloc (symsize);
1674 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1677 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1681 /* BFD mandates that all output sections be created and sizes set before
1682 any output is done. Thus, we traverse all sections multiple times. */
1683 bfd_map_over_sections (ibfd, setup_section, obfd);
1685 if (!extract_symbol)
1686 setup_bfd_headers (ibfd, obfd);
1688 if (add_sections != NULL)
1690 struct section_add *padd;
1691 struct section_list *pset;
1693 for (padd = add_sections; padd != NULL; padd = padd->next)
1697 pset = find_section_list (padd->name, FALSE);
1701 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1702 if (pset != NULL && pset->set_flags)
1703 flags = pset->flags | SEC_HAS_CONTENTS;
1705 /* bfd_make_section_with_flags() does not return very helpful
1706 error codes, so check for the most likely user error first. */
1707 if (bfd_get_section_by_name (obfd, padd->name))
1709 bfd_nonfatal_message (NULL, obfd, NULL,
1710 _("can't add section '%s'"), padd->name);
1715 /* We use LINKER_CREATED here so that the backend hooks
1716 will create any special section type information,
1717 instead of presuming we know what we're doing merely
1718 because we set the flags. */
1719 padd->section = bfd_make_section_with_flags
1720 (obfd, padd->name, flags | SEC_LINKER_CREATED);
1721 if (padd->section == NULL)
1723 bfd_nonfatal_message (NULL, obfd, NULL,
1724 _("can't create section `%s'"),
1730 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1732 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1738 if (pset->change_vma != CHANGE_IGNORE)
1739 if (! bfd_set_section_vma (obfd, padd->section,
1742 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1746 if (pset->change_lma != CHANGE_IGNORE)
1748 padd->section->lma = pset->lma_val;
1750 if (! bfd_set_section_alignment
1751 (obfd, padd->section,
1752 bfd_section_alignment (obfd, padd->section)))
1754 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1762 if (gnu_debuglink_filename != NULL)
1764 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1765 (obfd, gnu_debuglink_filename);
1767 if (gnu_debuglink_section == NULL)
1769 bfd_nonfatal_message (NULL, obfd, NULL,
1770 _("cannot create debug link section `%s'"),
1771 gnu_debuglink_filename);
1775 /* Special processing for PE format files. We
1776 have no way to distinguish PE from COFF here. */
1777 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1779 bfd_vma debuglink_vma;
1780 asection * highest_section;
1783 /* The PE spec requires that all sections be adjacent and sorted
1784 in ascending order of VMA. It also specifies that debug
1785 sections should be last. This is despite the fact that debug
1786 sections are not loaded into memory and so in theory have no
1789 This means that the debuglink section must be given a non-zero
1790 VMA which makes it contiguous with other debug sections. So
1791 walk the current section list, find the section with the
1792 highest VMA and start the debuglink section after that one. */
1793 for (sec = obfd->sections, highest_section = NULL;
1797 && (highest_section == NULL
1798 || sec->vma > highest_section->vma))
1799 highest_section = sec;
1801 if (highest_section)
1802 debuglink_vma = BFD_ALIGN (highest_section->vma
1803 + highest_section->size,
1804 /* FIXME: We ought to be using
1805 COFF_PAGE_SIZE here or maybe
1806 bfd_get_section_alignment() (if it
1807 was set) but since this is for PE
1808 and we know the required alignment
1809 it is easier just to hard code it. */
1812 /* Umm, not sure what to do in this case. */
1813 debuglink_vma = 0x1000;
1815 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1819 if (bfd_count_sections (obfd) != 0
1820 && (gap_fill_set || pad_to_set))
1825 /* We must fill in gaps between the sections and/or we must pad
1826 the last section to a specified address. We do this by
1827 grabbing a list of the sections, sorting them by VMA, and
1828 increasing the section sizes as required to fill the gaps.
1829 We write out the gap contents below. */
1831 c = bfd_count_sections (obfd);
1832 osections = (asection **) xmalloc (c * sizeof (asection *));
1834 bfd_map_over_sections (obfd, get_sections, &set);
1836 qsort (osections, c, sizeof (asection *), compare_section_lma);
1838 gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type));
1839 memset (gaps, 0, c * sizeof (bfd_size_type));
1843 for (i = 0; i < c - 1; i++)
1847 bfd_vma gap_start, gap_stop;
1849 flags = bfd_get_section_flags (obfd, osections[i]);
1850 if ((flags & SEC_HAS_CONTENTS) == 0
1851 || (flags & SEC_LOAD) == 0)
1854 size = bfd_section_size (obfd, osections[i]);
1855 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1856 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1857 if (gap_start < gap_stop)
1859 if (! bfd_set_section_size (obfd, osections[i],
1860 size + (gap_stop - gap_start)))
1862 bfd_nonfatal_message (NULL, obfd, osections[i],
1863 _("Can't fill gap after section"));
1867 gaps[i] = gap_stop - gap_start;
1868 if (max_gap < gap_stop - gap_start)
1869 max_gap = gap_stop - gap_start;
1879 lma = bfd_section_lma (obfd, osections[c - 1]);
1880 size = bfd_section_size (obfd, osections[c - 1]);
1881 if (lma + size < pad_to)
1883 if (! bfd_set_section_size (obfd, osections[c - 1],
1886 bfd_nonfatal_message (NULL, obfd, osections[c - 1],
1887 _("can't add padding"));
1892 gaps[c - 1] = pad_to - (lma + size);
1893 if (max_gap < pad_to - (lma + size))
1894 max_gap = pad_to - (lma + size);
1900 /* Symbol filtering must happen after the output sections
1901 have been created, but before their contents are set. */
1903 if (convert_debugging)
1904 dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE);
1906 if (strip_symbols == STRIP_DEBUG
1907 || strip_symbols == STRIP_ALL
1908 || strip_symbols == STRIP_UNNEEDED
1909 || strip_symbols == STRIP_NONDEBUG
1910 || strip_symbols == STRIP_DWO
1911 || strip_symbols == STRIP_NONDWO
1912 || discard_locals != LOCALS_UNDEF
1914 || htab_elements (strip_specific_htab) != 0
1915 || htab_elements (keep_specific_htab) != 0
1916 || htab_elements (localize_specific_htab) != 0
1917 || htab_elements (globalize_specific_htab) != 0
1918 || htab_elements (keepglobal_specific_htab) != 0
1919 || htab_elements (weaken_specific_htab) != 0
1920 || prefix_symbols_string
1923 || convert_debugging
1924 || change_leading_char
1925 || remove_leading_char
1926 || redefine_sym_list
1929 /* Mark symbols used in output relocations so that they
1930 are kept, even if they are local labels or static symbols.
1932 Note we iterate over the input sections examining their
1933 relocations since the relocations for the output sections
1934 haven't been set yet. mark_symbols_used_in_relocations will
1935 ignore input sections which have no corresponding output
1937 if (strip_symbols != STRIP_ALL)
1938 bfd_map_over_sections (ibfd,
1939 mark_symbols_used_in_relocations,
1941 osympp = (asymbol **) xmalloc ((symcount + 1) * sizeof (asymbol *));
1942 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1945 if (convert_debugging && dhandle != NULL)
1947 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1954 bfd_set_symtab (obfd, osympp, symcount);
1956 /* This has to happen before section positions are set. */
1957 bfd_map_over_sections (ibfd, copy_relocations_in_section, obfd);
1959 /* This has to happen after the symbol table has been set. */
1960 bfd_map_over_sections (ibfd, copy_section, obfd);
1962 if (add_sections != NULL)
1964 struct section_add *padd;
1966 for (padd = add_sections; padd != NULL; padd = padd->next)
1968 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1971 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1977 if (gnu_debuglink_filename != NULL)
1979 if (! bfd_fill_in_gnu_debuglink_section
1980 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
1982 bfd_nonfatal_message (NULL, obfd, NULL,
1983 _("cannot fill debug link section `%s'"),
1984 gnu_debuglink_filename);
1989 if (gap_fill_set || pad_to_set)
1994 /* Fill in the gaps. */
1997 buf = (bfd_byte *) xmalloc (max_gap);
1998 memset (buf, gap_fill, max_gap);
2000 c = bfd_count_sections (obfd);
2001 for (i = 0; i < c; i++)
2009 off = bfd_section_size (obfd, osections[i]) - left;
2020 if (! bfd_set_section_contents (obfd, osections[i], buf,
2023 bfd_nonfatal_message (NULL, obfd, osections[i], NULL);
2034 /* Do not copy backend data if --extract-symbol is passed; anything
2035 that needs to look at the section contents will fail. */
2039 /* Allow the BFD backend to copy any private data it understands
2040 from the input BFD to the output BFD. This is done last to
2041 permit the routine to look at the filtered symbol table, which is
2042 important for the ECOFF code at least. */
2043 if (! bfd_copy_private_bfd_data (ibfd, obfd))
2045 bfd_nonfatal_message (NULL, obfd, NULL,
2046 _("error copying private BFD data"));
2050 /* Switch to the alternate machine code. We have to do this at the
2051 very end, because we only initialize the header when we create
2052 the first section. */
2053 if (use_alt_mach_code != 0)
2055 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
2057 non_fatal (_("this target does not support %lu alternative machine codes"),
2059 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2061 non_fatal (_("treating that number as an absolute e_machine value instead"));
2062 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
2065 non_fatal (_("ignoring the alternative value"));
2072 /* Read each archive element in turn from IBFD, copy the
2073 contents to temp file, and keep the temp file handle.
2074 If 'force_output_target' is TRUE then make sure that
2075 all elements in the new archive are of the type
2079 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
2080 bfd_boolean force_output_target,
2081 const bfd_arch_info_type *input_arch)
2085 struct name_list *next;
2089 bfd **ptr = &obfd->archive_head;
2092 const char *filename;
2094 /* Make a temp directory to hold the contents. */
2095 dir = make_tempdir (bfd_get_filename (obfd));
2097 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2100 if (strip_symbols == STRIP_ALL)
2101 obfd->has_armap = FALSE;
2103 obfd->has_armap = ibfd->has_armap;
2104 obfd->is_thin_archive = ibfd->is_thin_archive;
2107 obfd->flags |= BFD_DETERMINISTIC_OUTPUT;
2111 this_element = bfd_openr_next_archived_file (ibfd, NULL);
2113 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
2116 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
2120 while (!status && this_element != NULL)
2126 int stat_status = 0;
2127 bfd_boolean del = TRUE;
2128 bfd_boolean ok_object;
2130 /* Create an output file for this member. */
2131 output_name = concat (dir, "/",
2132 bfd_get_filename (this_element), (char *) 0);
2134 /* If the file already exists, make another temp dir. */
2135 if (stat (output_name, &buf) >= 0)
2137 output_name = make_tempdir (output_name);
2138 if (output_name == NULL)
2139 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2142 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2143 l->name = output_name;
2147 output_name = concat (output_name, "/",
2148 bfd_get_filename (this_element), (char *) 0);
2153 stat_status = bfd_stat_arch_elt (this_element, &buf);
2155 if (stat_status != 0)
2156 non_fatal (_("internal stat error on %s"),
2157 bfd_get_filename (this_element));
2160 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2161 l->name = output_name;
2166 ok_object = bfd_check_format (this_element, bfd_object);
2168 bfd_nonfatal_message (NULL, this_element, NULL,
2169 _("Unable to recognise the format of file"));
2171 /* PR binutils/3110: Cope with archives
2172 containing multiple target types. */
2173 if (force_output_target || !ok_object)
2174 output_bfd = bfd_openw (output_name, output_target);
2176 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
2178 if (output_bfd == NULL)
2180 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2187 del = !copy_object (this_element, output_bfd, input_arch);
2189 if (del && bfd_get_arch (this_element) == bfd_arch_unknown)
2190 /* Try again as an unknown object file. */
2192 else if (!bfd_close (output_bfd))
2194 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2195 /* Error in new object file. Don't change archive. */
2202 del = !copy_unknown_object (this_element, output_bfd);
2203 if (!bfd_close_all_done (output_bfd))
2205 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2206 /* Error in new object file. Don't change archive. */
2213 unlink (output_name);
2218 if (preserve_dates && stat_status == 0)
2219 set_times (output_name, &buf);
2221 /* Open the newly output file and attach to our list. */
2222 output_bfd = bfd_openr (output_name, output_target);
2224 l->obfd = output_bfd;
2227 ptr = &output_bfd->archive_next;
2229 last_element = this_element;
2231 this_element = bfd_openr_next_archived_file (ibfd, last_element);
2233 bfd_close (last_element);
2238 filename = bfd_get_filename (obfd);
2239 if (!bfd_close (obfd))
2242 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2246 filename = bfd_get_filename (ibfd);
2247 if (!bfd_close (ibfd))
2250 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2254 /* Delete all the files that we opened. */
2255 for (l = list; l != NULL; l = l->next)
2257 if (l->obfd == NULL)
2261 bfd_close (l->obfd);
2269 set_long_section_mode (bfd *output_bfd, bfd *input_bfd, enum long_section_name_handling style)
2271 /* This is only relevant to Coff targets. */
2272 if (bfd_get_flavour (output_bfd) == bfd_target_coff_flavour)
2275 && bfd_get_flavour (input_bfd) == bfd_target_coff_flavour)
2276 style = bfd_coff_long_section_names (input_bfd) ? ENABLE : DISABLE;
2277 bfd_coff_set_long_section_names (output_bfd, style != DISABLE);
2281 /* The top-level control. */
2284 copy_file (const char *input_filename, const char *output_filename,
2285 const char *input_target, const char *output_target,
2286 const bfd_arch_info_type *input_arch)
2289 char **obj_matching;
2290 char **core_matching;
2291 off_t size = get_file_size (input_filename);
2296 non_fatal (_("error: the input file '%s' is empty"),
2302 /* To allow us to do "strip *" without dying on the first
2303 non-object file, failures are nonfatal. */
2304 ibfd = bfd_openr (input_filename, input_target);
2307 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2312 switch (do_debug_sections)
2315 ibfd->flags |= BFD_COMPRESS;
2318 ibfd->flags |= BFD_DECOMPRESS;
2324 if (bfd_check_format (ibfd, bfd_archive))
2326 bfd_boolean force_output_target;
2329 /* bfd_get_target does not return the correct value until
2330 bfd_check_format succeeds. */
2331 if (output_target == NULL)
2333 output_target = bfd_get_target (ibfd);
2334 force_output_target = FALSE;
2337 force_output_target = TRUE;
2339 obfd = bfd_openw (output_filename, output_target);
2342 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2346 /* This is a no-op on non-Coff targets. */
2347 set_long_section_mode (obfd, ibfd, long_section_names);
2349 copy_archive (ibfd, obfd, output_target, force_output_target, input_arch);
2351 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
2356 /* bfd_get_target does not return the correct value until
2357 bfd_check_format succeeds. */
2358 if (output_target == NULL)
2359 output_target = bfd_get_target (ibfd);
2361 obfd = bfd_openw (output_filename, output_target);
2364 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2368 /* This is a no-op on non-Coff targets. */
2369 set_long_section_mode (obfd, ibfd, long_section_names);
2371 if (! copy_object (ibfd, obfd, input_arch))
2374 if (!bfd_close (obfd))
2377 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2381 if (!bfd_close (ibfd))
2384 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2390 bfd_error_type obj_error = bfd_get_error ();
2391 bfd_error_type core_error;
2393 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2395 /* This probably can't happen.. */
2396 if (obj_error == bfd_error_file_ambiguously_recognized)
2397 free (obj_matching);
2401 core_error = bfd_get_error ();
2402 /* Report the object error in preference to the core error. */
2403 if (obj_error != core_error)
2404 bfd_set_error (obj_error);
2406 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2408 if (obj_error == bfd_error_file_ambiguously_recognized)
2410 list_matching_formats (obj_matching);
2411 free (obj_matching);
2413 if (core_error == bfd_error_file_ambiguously_recognized)
2415 list_matching_formats (core_matching);
2416 free (core_matching);
2423 /* Add a name to the section renaming list. */
2426 add_section_rename (const char * old_name, const char * new_name,
2429 section_rename * srename;
2431 /* Check for conflicts first. */
2432 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2433 if (strcmp (srename->old_name, old_name) == 0)
2435 /* Silently ignore duplicate definitions. */
2436 if (strcmp (srename->new_name, new_name) == 0
2437 && srename->flags == flags)
2440 fatal (_("Multiple renames of section %s"), old_name);
2443 srename = (section_rename *) xmalloc (sizeof (* srename));
2445 srename->old_name = old_name;
2446 srename->new_name = new_name;
2447 srename->flags = flags;
2448 srename->next = section_rename_list;
2450 section_rename_list = srename;
2453 /* Check the section rename list for a new name of the input section
2454 ISECTION. Return the new name if one is found.
2455 Also set RETURNED_FLAGS to the flags to be used for this section. */
2458 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2459 flagword * returned_flags)
2461 const char * old_name = bfd_section_name (ibfd, isection);
2462 section_rename * srename;
2464 /* Default to using the flags of the input section. */
2465 * returned_flags = bfd_get_section_flags (ibfd, isection);
2467 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2468 if (strcmp (srename->old_name, old_name) == 0)
2470 if (srename->flags != (flagword) -1)
2471 * returned_flags = srename->flags;
2473 return srename->new_name;
2479 /* Once each of the sections is copied, we may still need to do some
2480 finalization work for private section headers. Do that here. */
2483 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2485 /* Allow the BFD backend to copy any private data it understands
2486 from the input section to the output section. */
2487 if (! bfd_copy_private_header_data (ibfd, obfd))
2490 bfd_nonfatal_message (NULL, ibfd, NULL,
2491 _("error in private header data"));
2495 /* All went well. */
2499 /* Create a section in OBFD with the same
2500 name and attributes as ISECTION in IBFD. */
2503 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2505 bfd *obfd = (bfd *) obfdarg;
2506 struct section_list *p;
2514 char *prefix = NULL;
2515 bfd_boolean make_nobits;
2517 if (is_strip_section (ibfd, isection))
2520 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
2524 /* Get the, possibly new, name of the output section. */
2525 name = find_section_rename (ibfd, isection, & flags);
2527 /* Prefix sections. */
2528 if ((prefix_alloc_sections_string)
2529 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2530 prefix = prefix_alloc_sections_string;
2531 else if (prefix_sections_string)
2532 prefix = prefix_sections_string;
2538 n = (char *) xmalloc (strlen (prefix) + strlen (name) + 1);
2544 make_nobits = FALSE;
2545 if (p != NULL && p->set_flags)
2546 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2547 else if (strip_symbols == STRIP_NONDEBUG
2548 && (flags & (SEC_ALLOC | SEC_GROUP)) != 0
2549 && !(ibfd->xvec->flavour == bfd_target_elf_flavour
2550 && elf_section_type (isection) == SHT_NOTE))
2552 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
2553 if (obfd->xvec->flavour == bfd_target_elf_flavour)
2557 /* Twiddle the input section flags so that it seems to
2558 elf.c:copy_private_bfd_data that section flags have not
2559 changed between input and output sections. This hack
2560 prevents wholesale rewriting of the program headers. */
2561 isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
2565 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2567 if (osection == NULL)
2569 err = _("failed to create output section");
2574 elf_section_type (osection) = SHT_NOBITS;
2576 size = bfd_section_size (ibfd, isection);
2578 size = (size + interleave - 1) / interleave * copy_width;
2579 else if (extract_symbol)
2581 if (! bfd_set_section_size (obfd, osection, size))
2583 err = _("failed to set size");
2587 vma = bfd_section_vma (ibfd, isection);
2588 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2590 else if (p != NULL && p->change_vma == CHANGE_SET)
2593 vma += change_section_address;
2595 if (! bfd_set_section_vma (obfd, osection, vma))
2597 err = _("failed to set vma");
2601 lma = isection->lma;
2602 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2604 if (p->change_lma == CHANGE_MODIFY)
2606 else if (p->change_lma == CHANGE_SET)
2612 lma += change_section_address;
2614 osection->lma = lma;
2616 /* FIXME: This is probably not enough. If we change the LMA we
2617 may have to recompute the header for the file as well. */
2618 if (!bfd_set_section_alignment (obfd,
2620 bfd_section_alignment (ibfd, isection)))
2622 err = _("failed to set alignment");
2626 /* Copy merge entity size. */
2627 osection->entsize = isection->entsize;
2629 /* This used to be mangle_section; we do here to avoid using
2630 bfd_get_section_by_name since some formats allow multiple
2631 sections with the same name. */
2632 isection->output_section = osection;
2633 isection->output_offset = 0;
2635 /* Do not copy backend data if --extract-symbol is passed; anything
2636 that needs to look at the section contents will fail. */
2640 if ((isection->flags & SEC_GROUP) != 0)
2642 asymbol *gsym = group_signature (isection);
2646 gsym->flags |= BSF_KEEP;
2647 if (ibfd->xvec->flavour == bfd_target_elf_flavour)
2648 elf_group_id (isection) = gsym;
2652 /* Allow the BFD backend to copy any private data it understands
2653 from the input section to the output section. */
2654 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2656 err = _("failed to copy private data");
2660 /* All went well. */
2665 bfd_nonfatal_message (NULL, obfd, osection, err);
2668 /* Return TRUE if input section ISECTION should be skipped. */
2671 skip_section (bfd *ibfd, sec_ptr isection)
2677 /* If we have already failed earlier on,
2678 do not keep on generating complaints now. */
2685 if (is_strip_section (ibfd, isection))
2688 flags = bfd_get_section_flags (ibfd, isection);
2689 if ((flags & SEC_GROUP) != 0)
2692 osection = isection->output_section;
2693 size = bfd_get_section_size (isection);
2695 if (size == 0 || osection == 0)
2701 /* Copy relocations in input section ISECTION of IBFD to an output
2702 section with the same name in OBFDARG. If stripping then don't
2703 copy any relocation info. */
2706 copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2708 bfd *obfd = (bfd *) obfdarg;
2714 if (skip_section (ibfd, isection))
2717 osection = isection->output_section;
2719 /* Core files and DWO files do not need to be relocated. */
2720 if (bfd_get_format (obfd) == bfd_core || strip_symbols == STRIP_NONDWO)
2724 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2728 /* Do not complain if the target does not support relocations. */
2729 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2734 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
2742 bfd_set_reloc (obfd, osection, NULL, 0);
2743 osection->flags &= ~SEC_RELOC;
2747 relpp = (arelent **) xmalloc (relsize);
2748 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2752 bfd_nonfatal_message (NULL, ibfd, isection,
2753 _("relocation count is negative"));
2757 if (strip_symbols == STRIP_ALL)
2759 /* Remove relocations which are not in
2760 keep_strip_specific_list. */
2761 arelent **temp_relpp;
2762 long temp_relcount = 0;
2765 temp_relpp = (arelent **) xmalloc (relsize);
2766 for (i = 0; i < relcount; i++)
2767 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2768 keep_specific_htab))
2769 temp_relpp [temp_relcount++] = relpp [i];
2770 relcount = temp_relcount;
2775 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2778 osection->flags &= ~SEC_RELOC;
2784 /* Copy the data of input section ISECTION of IBFD
2785 to an output section with the same name in OBFD. */
2788 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2790 bfd *obfd = (bfd *) obfdarg;
2791 struct section_list *p;
2795 if (skip_section (ibfd, isection))
2798 osection = isection->output_section;
2799 size = bfd_get_section_size (isection);
2801 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2803 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2804 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2806 bfd_byte *memhunk = NULL;
2808 if (!bfd_get_full_section_contents (ibfd, isection, &memhunk))
2811 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
2817 /* We don't handle leftover bytes (too many possible behaviors,
2818 and we don't know what the user wants). The section length
2819 must be a multiple of the number of bytes to swap. */
2820 if ((size % reverse_bytes) == 0)
2825 for (i = 0; i < size; i += reverse_bytes)
2826 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
2828 bfd_byte *m = (bfd_byte *) memhunk;
2831 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
2832 m[(i + reverse_bytes) - (j + 1)] = b;
2836 /* User must pad the section up in order to do this. */
2837 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
2838 bfd_section_name (ibfd, isection), reverse_bytes);
2843 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2844 char *from = (char *) memhunk + copy_byte;
2845 char *to = (char *) memhunk;
2846 char *end = (char *) memhunk + size;
2849 for (; from < end; from += interleave)
2850 for (i = 0; i < copy_width; i++)
2852 if (&from[i] >= end)
2857 size = (size + interleave - 1 - copy_byte) / interleave * copy_width;
2858 osection->lma /= interleave;
2861 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2864 bfd_nonfatal_message (NULL, obfd, osection, NULL);
2869 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2871 void *memhunk = xmalloc (size);
2873 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2874 flag--they can just remove the section entirely and add it
2875 back again. However, we do permit them to turn on the
2876 SEC_HAS_CONTENTS flag, and take it to mean that the section
2877 contents should be zeroed out. */
2879 memset (memhunk, 0, size);
2880 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2883 bfd_nonfatal_message (NULL, obfd, osection, NULL);
2890 /* Get all the sections. This is used when --gap-fill or --pad-to is
2894 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
2896 asection ***secppp = (asection ***) secppparg;
2898 **secppp = osection;
2902 /* Sort sections by VMA. This is called via qsort, and is used when
2903 --gap-fill or --pad-to is used. We force non loadable or empty
2904 sections to the front, where they are easier to ignore. */
2907 compare_section_lma (const void *arg1, const void *arg2)
2909 const asection *const *sec1 = (const asection * const *) arg1;
2910 const asection *const *sec2 = (const asection * const *) arg2;
2911 flagword flags1, flags2;
2913 /* Sort non loadable sections to the front. */
2914 flags1 = (*sec1)->flags;
2915 flags2 = (*sec2)->flags;
2916 if ((flags1 & SEC_HAS_CONTENTS) == 0
2917 || (flags1 & SEC_LOAD) == 0)
2919 if ((flags2 & SEC_HAS_CONTENTS) != 0
2920 && (flags2 & SEC_LOAD) != 0)
2925 if ((flags2 & SEC_HAS_CONTENTS) == 0
2926 || (flags2 & SEC_LOAD) == 0)
2930 /* Sort sections by LMA. */
2931 if ((*sec1)->lma > (*sec2)->lma)
2933 else if ((*sec1)->lma < (*sec2)->lma)
2936 /* Sort sections with the same LMA by size. */
2937 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
2939 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
2945 /* Mark all the symbols which will be used in output relocations with
2946 the BSF_KEEP flag so that those symbols will not be stripped.
2948 Ignore relocations which will not appear in the output file. */
2951 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
2953 asymbol **symbols = (asymbol **) symbolsarg;
2958 /* Ignore an input section with no corresponding output section. */
2959 if (isection->output_section == NULL)
2962 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2965 /* Do not complain if the target does not support relocations. */
2966 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2968 bfd_fatal (bfd_get_filename (ibfd));
2974 relpp = (arelent **) xmalloc (relsize);
2975 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2977 bfd_fatal (bfd_get_filename (ibfd));
2979 /* Examine each symbol used in a relocation. If it's not one of the
2980 special bfd section symbols, then mark it with BSF_KEEP. */
2981 for (i = 0; i < relcount; i++)
2983 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2984 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2985 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2986 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
2993 /* Write out debugging information. */
2996 write_debugging_info (bfd *obfd, void *dhandle,
2997 long *symcountp ATTRIBUTE_UNUSED,
2998 asymbol ***symppp ATTRIBUTE_UNUSED)
3000 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
3001 return write_ieee_debugging_info (obfd, dhandle);
3003 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
3004 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
3006 bfd_byte *syms, *strings;
3007 bfd_size_type symsize, stringsize;
3008 asection *stabsec, *stabstrsec;
3011 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
3016 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
3017 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
3018 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
3020 || stabstrsec == NULL
3021 || ! bfd_set_section_size (obfd, stabsec, symsize)
3022 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
3023 || ! bfd_set_section_alignment (obfd, stabsec, 2)
3024 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
3026 bfd_nonfatal_message (NULL, obfd, NULL,
3027 _("can't create debugging section"));
3031 /* We can get away with setting the section contents now because
3032 the next thing the caller is going to do is copy over the
3033 real sections. We may someday have to split the contents
3034 setting out of this function. */
3035 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
3036 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
3039 bfd_nonfatal_message (NULL, obfd, NULL,
3040 _("can't set debugging section contents"));
3047 bfd_nonfatal_message (NULL, obfd, NULL,
3048 _("don't know how to write debugging information for %s"),
3049 bfd_get_target (obfd));
3053 /* If neither -D nor -U was specified explicitly,
3054 then use the configured default. */
3056 default_deterministic (void)
3058 if (deterministic < 0)
3059 deterministic = DEFAULT_AR_DETERMINISTIC;
3063 strip_main (int argc, char *argv[])
3065 char *input_target = NULL;
3066 char *output_target = NULL;
3067 bfd_boolean show_version = FALSE;
3068 bfd_boolean formats_info = FALSE;
3071 struct section_list *p;
3072 char *output_file = NULL;
3074 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
3075 strip_options, (int *) 0)) != EOF)
3080 input_target = optarg;
3083 output_target = optarg;
3086 input_target = output_target = optarg;
3089 p = find_section_list (optarg, TRUE);
3091 sections_removed = TRUE;
3094 strip_symbols = STRIP_ALL;
3098 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3099 strip_symbols = STRIP_DEBUG;
3101 case OPTION_STRIP_DWO:
3102 strip_symbols = STRIP_DWO;
3104 case OPTION_STRIP_UNNEEDED:
3105 strip_symbols = STRIP_UNNEEDED;
3108 add_specific_symbol (optarg, keep_specific_htab);
3111 add_specific_symbol (optarg, strip_specific_htab);
3114 output_file = optarg;
3117 preserve_dates = TRUE;
3120 deterministic = TRUE;
3123 deterministic = FALSE;
3126 discard_locals = LOCALS_ALL;
3129 discard_locals = LOCALS_START_L;
3135 show_version = TRUE;
3137 case OPTION_FORMATS_INFO:
3138 formats_info = TRUE;
3140 case OPTION_ONLY_KEEP_DEBUG:
3141 strip_symbols = STRIP_NONDEBUG;
3143 case OPTION_KEEP_FILE_SYMBOLS:
3144 keep_file_symbols = 1;
3147 /* We've been given a long option. */
3154 strip_usage (stdout, 0);
3156 strip_usage (stderr, 1);
3167 print_version ("strip");
3169 default_deterministic ();
3171 /* Default is to strip all symbols. */
3172 if (strip_symbols == STRIP_UNDEF
3173 && discard_locals == LOCALS_UNDEF
3174 && htab_elements (strip_specific_htab) == 0)
3175 strip_symbols = STRIP_ALL;
3177 if (output_target == NULL)
3178 output_target = input_target;
3182 || (output_file != NULL && (i + 1) < argc))
3183 strip_usage (stderr, 1);
3185 for (; i < argc; i++)
3187 int hold_status = status;
3188 struct stat statbuf;
3191 if (get_file_size (argv[i]) < 1)
3198 /* No need to check the return value of stat().
3199 It has already been checked in get_file_size(). */
3200 stat (argv[i], &statbuf);
3202 if (output_file == NULL
3203 || filename_cmp (argv[i], output_file) == 0)
3204 tmpname = make_tempname (argv[i]);
3206 tmpname = output_file;
3208 if (tmpname == NULL)
3210 bfd_nonfatal_message (argv[i], NULL, NULL,
3211 _("could not create temporary file to hold stripped copy"));
3217 copy_file (argv[i], tmpname, input_target, output_target, NULL);
3221 set_times (tmpname, &statbuf);
3222 if (output_file != tmpname)
3223 status = (smart_rename (tmpname,
3224 output_file ? output_file : argv[i],
3225 preserve_dates) != 0);
3227 status = hold_status;
3230 unlink_if_ordinary (tmpname);
3231 if (output_file != tmpname)
3238 /* Set up PE subsystem. */
3241 set_pe_subsystem (const char *s)
3243 const char *version, *subsystem;
3253 { "native", 0, IMAGE_SUBSYSTEM_NATIVE },
3254 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI },
3255 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI },
3256 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI },
3257 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI },
3258 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION },
3259 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER },
3260 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER },
3261 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER },
3262 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX }
3268 /* Check for the presence of a version number. */
3269 version = strchr (s, ':');
3270 if (version == NULL)
3274 int len = version - s;
3278 version = copy + 1 + len;
3279 pe_major_subsystem_version = strtoul (version, ©, 0);
3281 pe_minor_subsystem_version = strtoul (copy + 1, ©, 0);
3283 non_fatal (_("%s: bad version in PE subsystem"), s);
3286 /* Check for numeric subsystem. */
3287 value = (short) strtol (subsystem, ©, 0);
3290 for (i = 0; i < ARRAY_SIZE (v); i++)
3291 if (v[i].value == value)
3293 pe_subsystem = value;
3294 set_def = v[i].set_def;
3300 /* Search for subsystem by name. */
3301 for (i = 0; i < ARRAY_SIZE (v); i++)
3302 if (strcmp (subsystem, v[i].name) == 0)
3304 pe_subsystem = v[i].value;
3305 set_def = v[i].set_def;
3313 fatal (_("unknown PE subsystem: %s"), s);
3318 if (pe_file_alignment == (bfd_vma) -1)
3319 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
3320 if (pe_section_alignment == (bfd_vma) -1)
3321 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
3325 free ((char *) subsystem);
3328 /* Convert EFI target to PEI target. */
3331 convert_efi_target (char *efi)
3337 if (strcmp (efi + 4, "ia32") == 0)
3339 /* Change ia32 to i386. */
3344 else if (strcmp (efi + 4, "x86_64") == 0)
3346 /* Change x86_64 to x86-64. */
3352 copy_main (int argc, char *argv[])
3354 char *input_filename = NULL;
3355 char *output_filename = NULL;
3357 char *input_target = NULL;
3358 char *output_target = NULL;
3359 bfd_boolean show_version = FALSE;
3360 bfd_boolean change_warn = TRUE;
3361 bfd_boolean formats_info = FALSE;
3363 struct section_list *p;
3364 struct stat statbuf;
3365 const bfd_arch_info_type *input_arch = NULL;
3367 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
3368 copy_options, (int *) 0)) != EOF)
3373 copy_byte = atoi (optarg);
3375 fatal (_("byte number must be non-negative"));
3379 input_arch = bfd_scan_arch (optarg);
3380 if (input_arch == NULL)
3381 fatal (_("architecture %s unknown"), optarg);
3387 interleave = atoi (optarg);
3389 fatal (_("interleave must be positive"));
3395 case OPTION_INTERLEAVE_WIDTH:
3396 copy_width = atoi (optarg);
3398 fatal(_("interleave width must be positive"));
3402 case 's': /* "source" - 'I' is preferred */
3403 input_target = optarg;
3407 case 'd': /* "destination" - 'O' is preferred */
3408 output_target = optarg;
3412 input_target = output_target = optarg;
3416 p = find_section_list (optarg, TRUE);
3418 fatal (_("%s both copied and removed"), optarg);
3420 sections_copied = TRUE;
3424 p = find_section_list (optarg, TRUE);
3426 fatal (_("%s both copied and removed"), optarg);
3428 sections_removed = TRUE;
3432 strip_symbols = STRIP_ALL;
3436 strip_symbols = STRIP_DEBUG;
3439 case OPTION_STRIP_DWO:
3440 strip_symbols = STRIP_DWO;
3443 case OPTION_STRIP_UNNEEDED:
3444 strip_symbols = STRIP_UNNEEDED;
3447 case OPTION_ONLY_KEEP_DEBUG:
3448 strip_symbols = STRIP_NONDEBUG;
3451 case OPTION_KEEP_FILE_SYMBOLS:
3452 keep_file_symbols = 1;
3455 case OPTION_ADD_GNU_DEBUGLINK:
3456 gnu_debuglink_filename = optarg;
3460 add_specific_symbol (optarg, keep_specific_htab);
3464 add_specific_symbol (optarg, strip_specific_htab);
3467 case OPTION_STRIP_UNNEEDED_SYMBOL:
3468 add_specific_symbol (optarg, strip_unneeded_htab);
3472 add_specific_symbol (optarg, localize_specific_htab);
3475 case OPTION_GLOBALIZE_SYMBOL:
3476 add_specific_symbol (optarg, globalize_specific_htab);
3480 add_specific_symbol (optarg, keepglobal_specific_htab);
3484 add_specific_symbol (optarg, weaken_specific_htab);
3488 preserve_dates = TRUE;
3492 deterministic = TRUE;
3496 deterministic = FALSE;
3504 discard_locals = LOCALS_ALL;
3508 discard_locals = LOCALS_START_L;
3516 show_version = TRUE;
3519 case OPTION_FORMATS_INFO:
3520 formats_info = TRUE;
3527 case OPTION_ADD_SECTION:
3531 struct section_add *pa;
3534 s = strchr (optarg, '=');
3537 fatal (_("bad format for %s"), "--add-section");
3539 pa = (struct section_add *) xmalloc (sizeof (struct section_add));
3540 pa->name = xstrndup (optarg, s - optarg);
3541 pa->filename = s + 1;
3543 /* We don't use get_file_size so that we can do
3544 --add-section .note.GNU_stack=/dev/null
3545 get_file_size doesn't work on /dev/null. */
3547 f = fopen (pa->filename, FOPEN_RB);
3549 fatal (_("cannot open: %s: %s"),
3550 pa->filename, strerror (errno));
3554 pa->contents = (bfd_byte *) xmalloc (alloc);
3562 pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc);
3565 got = fread (pa->contents + off, 1, alloc - off, f);
3567 fatal (_("%s: fread failed"), pa->filename);
3576 pa->next = add_sections;
3581 case OPTION_CHANGE_START:
3582 change_start = parse_vma (optarg, "--change-start");
3585 case OPTION_CHANGE_SECTION_ADDRESS:
3586 case OPTION_CHANGE_SECTION_LMA:
3587 case OPTION_CHANGE_SECTION_VMA:
3592 char *option = NULL;
3594 enum change_action what = CHANGE_IGNORE;
3598 case OPTION_CHANGE_SECTION_ADDRESS:
3599 option = "--change-section-address";
3601 case OPTION_CHANGE_SECTION_LMA:
3602 option = "--change-section-lma";
3604 case OPTION_CHANGE_SECTION_VMA:
3605 option = "--change-section-vma";
3609 s = strchr (optarg, '=');
3612 s = strchr (optarg, '+');
3615 s = strchr (optarg, '-');
3617 fatal (_("bad format for %s"), option);
3622 name = (char *) xmalloc (len + 1);
3623 strncpy (name, optarg, len);
3626 p = find_section_list (name, TRUE);
3628 val = parse_vma (s + 1, option);
3632 case '=': what = CHANGE_SET; break;
3633 case '-': val = - val; /* Drop through. */
3634 case '+': what = CHANGE_MODIFY; break;
3639 case OPTION_CHANGE_SECTION_ADDRESS:
3640 p->change_vma = what;
3644 case OPTION_CHANGE_SECTION_LMA:
3645 p->change_lma = what;
3649 case OPTION_CHANGE_SECTION_VMA:
3650 p->change_vma = what;
3657 case OPTION_CHANGE_ADDRESSES:
3658 change_section_address = parse_vma (optarg, "--change-addresses");
3659 change_start = change_section_address;
3662 case OPTION_CHANGE_WARNINGS:
3666 case OPTION_CHANGE_LEADING_CHAR:
3667 change_leading_char = TRUE;
3670 case OPTION_COMPRESS_DEBUG_SECTIONS:
3671 do_debug_sections = compress;
3674 case OPTION_DEBUGGING:
3675 convert_debugging = TRUE;
3678 case OPTION_DECOMPRESS_DEBUG_SECTIONS:
3679 do_debug_sections = decompress;
3682 case OPTION_GAP_FILL:
3684 bfd_vma gap_fill_vma;
3686 gap_fill_vma = parse_vma (optarg, "--gap-fill");
3687 gap_fill = (bfd_byte) gap_fill_vma;
3688 if ((bfd_vma) gap_fill != gap_fill_vma)
3692 sprintf_vma (buff, gap_fill_vma);
3694 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3697 gap_fill_set = TRUE;
3701 case OPTION_NO_CHANGE_WARNINGS:
3702 change_warn = FALSE;
3706 pad_to = parse_vma (optarg, "--pad-to");
3710 case OPTION_REMOVE_LEADING_CHAR:
3711 remove_leading_char = TRUE;
3714 case OPTION_REDEFINE_SYM:
3716 /* Push this redefinition onto redefine_symbol_list. */
3720 const char *nextarg;
3721 char *source, *target;
3723 s = strchr (optarg, '=');
3725 fatal (_("bad format for %s"), "--redefine-sym");
3728 source = (char *) xmalloc (len + 1);
3729 strncpy (source, optarg, len);
3733 len = strlen (nextarg);
3734 target = (char *) xmalloc (len + 1);
3735 strcpy (target, nextarg);
3737 redefine_list_append ("--redefine-sym", source, target);
3744 case OPTION_REDEFINE_SYMS:
3745 add_redefine_syms_file (optarg);
3748 case OPTION_SET_SECTION_FLAGS:
3754 s = strchr (optarg, '=');
3756 fatal (_("bad format for %s"), "--set-section-flags");
3759 name = (char *) xmalloc (len + 1);
3760 strncpy (name, optarg, len);
3763 p = find_section_list (name, TRUE);
3765 p->set_flags = TRUE;
3766 p->flags = parse_flags (s + 1);
3770 case OPTION_RENAME_SECTION:
3773 const char *eq, *fl;
3778 eq = strchr (optarg, '=');
3780 fatal (_("bad format for %s"), "--rename-section");
3784 fatal (_("bad format for %s"), "--rename-section");
3786 old_name = (char *) xmalloc (len + 1);
3787 strncpy (old_name, optarg, len);
3791 fl = strchr (eq, ',');
3794 flags = parse_flags (fl + 1);
3804 fatal (_("bad format for %s"), "--rename-section");
3806 new_name = (char *) xmalloc (len + 1);
3807 strncpy (new_name, eq, len);
3810 add_section_rename (old_name, new_name, flags);
3814 case OPTION_SET_START:
3815 set_start = parse_vma (optarg, "--set-start");
3816 set_start_set = TRUE;
3819 case OPTION_SREC_LEN:
3820 Chunk = parse_vma (optarg, "--srec-len");
3823 case OPTION_SREC_FORCES3:
3827 case OPTION_STRIP_SYMBOLS:
3828 add_specific_symbols (optarg, strip_specific_htab);
3831 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3832 add_specific_symbols (optarg, strip_unneeded_htab);
3835 case OPTION_KEEP_SYMBOLS:
3836 add_specific_symbols (optarg, keep_specific_htab);
3839 case OPTION_LOCALIZE_HIDDEN:
3840 localize_hidden = TRUE;
3843 case OPTION_LOCALIZE_SYMBOLS:
3844 add_specific_symbols (optarg, localize_specific_htab);
3847 case OPTION_LONG_SECTION_NAMES:
3848 if (!strcmp ("enable", optarg))
3849 long_section_names = ENABLE;
3850 else if (!strcmp ("disable", optarg))
3851 long_section_names = DISABLE;
3852 else if (!strcmp ("keep", optarg))
3853 long_section_names = KEEP;
3855 fatal (_("unknown long section names option '%s'"), optarg);
3858 case OPTION_GLOBALIZE_SYMBOLS:
3859 add_specific_symbols (optarg, globalize_specific_htab);
3862 case OPTION_KEEPGLOBAL_SYMBOLS:
3863 add_specific_symbols (optarg, keepglobal_specific_htab);
3866 case OPTION_WEAKEN_SYMBOLS:
3867 add_specific_symbols (optarg, weaken_specific_htab);
3870 case OPTION_ALT_MACH_CODE:
3871 use_alt_mach_code = strtoul (optarg, NULL, 0);
3872 if (use_alt_mach_code == 0)
3873 fatal (_("unable to parse alternative machine code"));
3876 case OPTION_PREFIX_SYMBOLS:
3877 prefix_symbols_string = optarg;
3880 case OPTION_PREFIX_SECTIONS:
3881 prefix_sections_string = optarg;
3884 case OPTION_PREFIX_ALLOC_SECTIONS:
3885 prefix_alloc_sections_string = optarg;
3888 case OPTION_READONLY_TEXT:
3889 bfd_flags_to_set |= WP_TEXT;
3890 bfd_flags_to_clear &= ~WP_TEXT;
3893 case OPTION_WRITABLE_TEXT:
3894 bfd_flags_to_clear |= WP_TEXT;
3895 bfd_flags_to_set &= ~WP_TEXT;
3899 bfd_flags_to_set |= D_PAGED;
3900 bfd_flags_to_clear &= ~D_PAGED;
3904 bfd_flags_to_clear |= D_PAGED;
3905 bfd_flags_to_set &= ~D_PAGED;
3908 case OPTION_EXTRACT_DWO:
3909 strip_symbols = STRIP_NONDWO;
3912 case OPTION_EXTRACT_SYMBOL:
3913 extract_symbol = TRUE;
3916 case OPTION_REVERSE_BYTES:
3918 int prev = reverse_bytes;
3920 reverse_bytes = atoi (optarg);
3921 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
3922 fatal (_("number of bytes to reverse must be positive and even"));
3924 if (prev && prev != reverse_bytes)
3925 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
3930 case OPTION_FILE_ALIGNMENT:
3931 pe_file_alignment = parse_vma (optarg, "--file-alignment");
3937 pe_heap_reserve = strtoul (optarg, &end, 0);
3939 || (*end != '.' && *end != '\0'))
3940 non_fatal (_("%s: invalid reserve value for --heap"),
3942 else if (*end != '\0')
3944 pe_heap_commit = strtoul (end + 1, &end, 0);
3946 non_fatal (_("%s: invalid commit value for --heap"),
3952 case OPTION_IMAGE_BASE:
3953 pe_image_base = parse_vma (optarg, "--image-base");
3956 case OPTION_SECTION_ALIGNMENT:
3957 pe_section_alignment = parse_vma (optarg,
3958 "--section-alignment");
3961 case OPTION_SUBSYSTEM:
3962 set_pe_subsystem (optarg);
3968 pe_stack_reserve = strtoul (optarg, &end, 0);
3970 || (*end != '.' && *end != '\0'))
3971 non_fatal (_("%s: invalid reserve value for --stack"),
3973 else if (*end != '\0')
3975 pe_stack_commit = strtoul (end + 1, &end, 0);
3977 non_fatal (_("%s: invalid commit value for --stack"),
3984 /* We've been given a long option. */
3989 copy_usage (stdout, 0);
3992 copy_usage (stderr, 1);
4003 print_version ("objcopy");
4005 if (interleave && copy_byte == -1)
4006 fatal (_("interleave start byte must be set with --byte"));
4008 if (copy_byte >= interleave)
4009 fatal (_("byte number must be less than interleave"));
4011 if (copy_width > interleave - copy_byte)
4012 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4014 if (optind == argc || optind + 2 < argc)
4015 copy_usage (stderr, 1);
4017 input_filename = argv[optind];
4018 if (optind + 1 < argc)
4019 output_filename = argv[optind + 1];
4021 default_deterministic ();
4023 /* Default is to strip no symbols. */
4024 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
4025 strip_symbols = STRIP_NONE;
4027 if (output_target == NULL)
4028 output_target = input_target;
4030 /* Convert input EFI target to PEI target. */
4031 if (input_target != NULL
4032 && strncmp (input_target, "efi-", 4) == 0)
4036 efi = xstrdup (output_target + 4);
4037 if (strncmp (efi, "bsdrv-", 6) == 0
4038 || strncmp (efi, "rtdrv-", 6) == 0)
4040 else if (strncmp (efi, "app-", 4) != 0)
4041 fatal (_("unknown input EFI target: %s"), input_target);
4044 convert_efi_target (efi);
4047 /* Convert output EFI target to PEI target. */
4048 if (output_target != NULL
4049 && strncmp (output_target, "efi-", 4) == 0)
4053 efi = xstrdup (output_target + 4);
4054 if (strncmp (efi, "app-", 4) == 0)
4056 if (pe_subsystem == -1)
4057 pe_subsystem = IMAGE_SUBSYSTEM_EFI_APPLICATION;
4059 else if (strncmp (efi, "bsdrv-", 6) == 0)
4061 if (pe_subsystem == -1)
4062 pe_subsystem = IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER;
4065 else if (strncmp (efi, "rtdrv-", 6) == 0)
4067 if (pe_subsystem == -1)
4068 pe_subsystem = IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER;
4072 fatal (_("unknown output EFI target: %s"), output_target);
4074 if (pe_file_alignment == (bfd_vma) -1)
4075 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
4076 if (pe_section_alignment == (bfd_vma) -1)
4077 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
4079 output_target = efi;
4080 convert_efi_target (efi);
4084 if (stat (input_filename, & statbuf) < 0)
4085 fatal (_("warning: could not locate '%s'. System error message: %s"),
4086 input_filename, strerror (errno));
4088 /* If there is no destination file, or the source and destination files
4089 are the same, then create a temp and rename the result into the input. */
4090 if (output_filename == NULL
4091 || filename_cmp (input_filename, output_filename) == 0)
4092 tmpname = make_tempname (input_filename);
4094 tmpname = output_filename;
4096 if (tmpname == NULL)
4097 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4098 input_filename, strerror (errno));
4100 copy_file (input_filename, tmpname, input_target, output_target, input_arch);
4104 set_times (tmpname, &statbuf);
4105 if (tmpname != output_filename)
4106 status = (smart_rename (tmpname, input_filename,
4107 preserve_dates) != 0);
4110 unlink_if_ordinary (tmpname);
4114 for (p = change_sections; p != NULL; p = p->next)
4118 if (p->change_vma != CHANGE_IGNORE)
4122 sprintf_vma (buff, p->vma_val);
4124 /* xgettext:c-format */
4125 non_fatal (_("%s %s%c0x%s never used"),
4126 "--change-section-vma",
4128 p->change_vma == CHANGE_SET ? '=' : '+',
4132 if (p->change_lma != CHANGE_IGNORE)
4136 sprintf_vma (buff, p->lma_val);
4138 /* xgettext:c-format */
4139 non_fatal (_("%s %s%c0x%s never used"),
4140 "--change-section-lma",
4142 p->change_lma == CHANGE_SET ? '=' : '+',
4153 main (int argc, char *argv[])
4155 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4156 setlocale (LC_MESSAGES, "");
4158 #if defined (HAVE_SETLOCALE)
4159 setlocale (LC_CTYPE, "");
4161 bindtextdomain (PACKAGE, LOCALEDIR);
4162 textdomain (PACKAGE);
4164 program_name = argv[0];
4165 xmalloc_set_program_name (program_name);
4167 START_PROGRESS (program_name, 0);
4169 expandargv (&argc, &argv);
4171 strip_symbols = STRIP_UNDEF;
4172 discard_locals = LOCALS_UNDEF;
4175 set_default_bfd_target ();
4179 int i = strlen (program_name);
4180 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4181 /* Drop the .exe suffix, if any. */
4182 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
4185 program_name[i] = '\0';
4188 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
4191 create_symbol_htabs ();
4194 strip_main (argc, argv);
4196 copy_main (argc, argv);
4198 END_PROGRESS (program_name);