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
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 bfd_boolean deterministic; /* 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;
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 {"discard-all", no_argument, 0, 'x'},
329 {"discard-locals", no_argument, 0, 'X'},
330 {"enable-deterministic-archives", no_argument, 0, 'D'},
331 {"format", required_argument, 0, 'F'}, /* Obsolete */
332 {"help", no_argument, 0, 'h'},
333 {"info", no_argument, 0, OPTION_FORMATS_INFO},
334 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
335 {"input-target", required_argument, 0, 'I'},
336 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
337 {"keep-symbol", required_argument, 0, 'K'},
338 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
339 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
340 {"output-target", required_argument, 0, 'O'},
341 {"output-file", required_argument, 0, 'o'},
342 {"preserve-dates", no_argument, 0, 'p'},
343 {"remove-section", required_argument, 0, 'R'},
344 {"strip-all", no_argument, 0, 's'},
345 {"strip-debug", no_argument, 0, 'S'},
346 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
347 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
348 {"strip-symbol", required_argument, 0, 'N'},
349 {"target", required_argument, 0, 'F'},
350 {"verbose", no_argument, 0, 'v'},
351 {"version", no_argument, 0, 'V'},
352 {"wildcard", no_argument, 0, 'w'},
353 {0, no_argument, 0, 0}
356 /* Options to handle if running as "objcopy". */
358 static struct option copy_options[] =
360 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
361 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
362 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
363 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
364 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
365 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
366 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
367 {"binary-architecture", required_argument, 0, 'B'},
368 {"byte", required_argument, 0, 'b'},
369 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
370 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
371 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
372 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
373 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
374 {"change-start", required_argument, 0, OPTION_CHANGE_START},
375 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
376 {"compress-debug-sections", no_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS},
377 {"debugging", no_argument, 0, OPTION_DEBUGGING},
378 {"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS},
379 {"discard-all", no_argument, 0, 'x'},
380 {"discard-locals", no_argument, 0, 'X'},
381 {"enable-deterministic-archives", no_argument, 0, 'D'},
382 {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO},
383 {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
384 {"format", required_argument, 0, 'F'}, /* Obsolete */
385 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
386 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
387 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
388 {"help", no_argument, 0, 'h'},
389 {"impure", no_argument, 0, OPTION_IMPURE},
390 {"info", no_argument, 0, OPTION_FORMATS_INFO},
391 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
392 {"input-target", required_argument, 0, 'I'},
393 {"interleave", optional_argument, 0, 'i'},
394 {"interleave-width", required_argument, 0, OPTION_INTERLEAVE_WIDTH},
395 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
396 {"keep-global-symbol", required_argument, 0, 'G'},
397 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
398 {"keep-symbol", required_argument, 0, 'K'},
399 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
400 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
401 {"localize-symbol", required_argument, 0, 'L'},
402 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
403 {"long-section-names", required_argument, 0, OPTION_LONG_SECTION_NAMES},
404 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
405 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
406 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
407 {"only-section", required_argument, 0, 'j'},
408 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
409 {"output-target", required_argument, 0, 'O'},
410 {"pad-to", required_argument, 0, OPTION_PAD_TO},
411 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
412 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
413 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
414 {"preserve-dates", no_argument, 0, 'p'},
415 {"pure", no_argument, 0, OPTION_PURE},
416 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
417 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
418 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
419 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
420 {"remove-section", required_argument, 0, 'R'},
421 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
422 {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
423 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
424 {"set-start", required_argument, 0, OPTION_SET_START},
425 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
426 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
427 {"strip-all", no_argument, 0, 'S'},
428 {"strip-debug", no_argument, 0, 'g'},
429 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
430 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
431 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
432 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
433 {"strip-symbol", required_argument, 0, 'N'},
434 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
435 {"target", required_argument, 0, 'F'},
436 {"verbose", no_argument, 0, 'v'},
437 {"version", no_argument, 0, 'V'},
438 {"weaken", no_argument, 0, OPTION_WEAKEN},
439 {"weaken-symbol", required_argument, 0, 'W'},
440 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
441 {"wildcard", no_argument, 0, 'w'},
442 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
443 {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT},
444 {"heap", required_argument, 0, OPTION_HEAP},
445 {"image-base", required_argument, 0 , OPTION_IMAGE_BASE},
446 {"section-alignment", required_argument, 0, OPTION_SECTION_ALIGNMENT},
447 {"stack", required_argument, 0, OPTION_STACK},
448 {"subsystem", required_argument, 0, OPTION_SUBSYSTEM},
449 {0, no_argument, 0, 0}
453 extern char *program_name;
455 /* This flag distinguishes between strip and objcopy:
456 1 means this is 'strip'; 0 means this is 'objcopy'.
457 -1 means if we should use argv[0] to decide. */
460 /* The maximum length of an S record. This variable is declared in srec.c
461 and can be modified by the --srec-len parameter. */
462 extern unsigned int Chunk;
464 /* Restrict the generation of Srecords to type S3 only.
465 This variable is declare in bfd/srec.c and can be toggled
466 on by the --srec-forceS3 command line switch. */
467 extern bfd_boolean S3Forced;
469 /* Forward declarations. */
470 static void setup_section (bfd *, asection *, void *);
471 static void setup_bfd_headers (bfd *, bfd *);
472 static void copy_relocations_in_section (bfd *, asection *, void *);
473 static void copy_section (bfd *, asection *, void *);
474 static void get_sections (bfd *, asection *, void *);
475 static int compare_section_lma (const void *, const void *);
476 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
477 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
478 static const char *lookup_sym_redefinition (const char *);
481 copy_usage (FILE *stream, int exit_status)
483 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
484 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
485 fprintf (stream, _(" The options are:\n"));
486 fprintf (stream, _("\
487 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
488 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
489 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
490 -F --target <bfdname> Set both input and output format to <bfdname>\n\
491 --debugging Convert debugging information, if possible\n\
492 -p --preserve-dates Copy modified/access timestamps to the output\n\
493 -D --enable-deterministic-archives\n\
494 Produce deterministic output when stripping archives\n\
495 -j --only-section <name> Only copy section <name> into the output\n\
496 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
497 -R --remove-section <name> Remove section <name> from the output\n\
498 -S --strip-all Remove all symbol and relocation information\n\
499 -g --strip-debug Remove all debugging symbols & sections\n\
500 --strip-dwo Remove all DWO sections\n\
501 --strip-unneeded Remove all symbols not needed by relocations\n\
502 -N --strip-symbol <name> Do not copy symbol <name>\n\
503 --strip-unneeded-symbol <name>\n\
504 Do not copy symbol <name> unless needed by\n\
506 --only-keep-debug Strip everything but the debug information\n\
507 --extract-dwo Copy only DWO sections\n\
508 --extract-symbol Remove section contents but keep symbols\n\
509 -K --keep-symbol <name> Do not strip symbol <name>\n\
510 --keep-file-symbols Do not strip file symbol(s)\n\
511 --localize-hidden Turn all ELF hidden symbols into locals\n\
512 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
513 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
514 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
515 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
516 --weaken Force all global symbols to be marked as weak\n\
517 -w --wildcard Permit wildcard in symbol comparison\n\
518 -x --discard-all Remove all non-global symbols\n\
519 -X --discard-locals Remove any compiler-generated symbols\n\
520 -i --interleave [<number>] Only copy N out of every <number> bytes\n\
521 --interleave-width <number> Set N for --interleave\n\
522 -b --byte <num> Select byte <num> in every interleaved block\n\
523 --gap-fill <val> Fill gaps between sections with <val>\n\
524 --pad-to <addr> Pad the last section up to address <addr>\n\
525 --set-start <addr> Set the start address to <addr>\n\
526 {--change-start|--adjust-start} <incr>\n\
527 Add <incr> to the start address\n\
528 {--change-addresses|--adjust-vma} <incr>\n\
529 Add <incr> to LMA, VMA and start addresses\n\
530 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
531 Change LMA and VMA of section <name> by <val>\n\
532 --change-section-lma <name>{=|+|-}<val>\n\
533 Change the LMA of section <name> by <val>\n\
534 --change-section-vma <name>{=|+|-}<val>\n\
535 Change the VMA of section <name> by <val>\n\
536 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
537 Warn if a named section does not exist\n\
538 --set-section-flags <name>=<flags>\n\
539 Set section <name>'s properties to <flags>\n\
540 --add-section <name>=<file> Add section <name> found in <file> to output\n\
541 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
542 --long-section-names {enable|disable|keep}\n\
543 Handle long section names in Coff objects.\n\
544 --change-leading-char Force output format's leading character style\n\
545 --remove-leading-char Remove leading character from global symbols\n\
546 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
547 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
548 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
550 --srec-len <number> Restrict the length of generated Srecords\n\
551 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
552 --strip-symbols <file> -N for all symbols listed in <file>\n\
553 --strip-unneeded-symbols <file>\n\
554 --strip-unneeded-symbol for all symbols listed\n\
556 --keep-symbols <file> -K for all symbols listed in <file>\n\
557 --localize-symbols <file> -L for all symbols listed in <file>\n\
558 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
559 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
560 --weaken-symbols <file> -W for all symbols listed in <file>\n\
561 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
562 --writable-text Mark the output text as writable\n\
563 --readonly-text Make the output text write protected\n\
564 --pure Mark the output file as demand paged\n\
565 --impure Mark the output file as impure\n\
566 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
567 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
568 --prefix-alloc-sections <prefix>\n\
569 Add <prefix> to start of every allocatable\n\
571 --file-alignment <num> Set PE file alignment to <num>\n\
572 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
574 --image-base <address> Set PE image base to <address>\n\
575 --section-alignment <num> Set PE section alignment to <num>\n\
576 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
578 --subsystem <name>[:<version>]\n\
579 Set PE subsystem to <name> [& <version>]\n\
580 --compress-debug-sections Compress DWARF debug sections using zlib\n\
581 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
582 -v --verbose List all object files modified\n\
583 @<file> Read options from <file>\n\
584 -V --version Display this program's version number\n\
585 -h --help Display this output\n\
586 --info List object formats & architectures supported\n\
588 list_supported_targets (program_name, stream);
589 if (REPORT_BUGS_TO[0] && exit_status == 0)
590 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
595 strip_usage (FILE *stream, int exit_status)
597 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
598 fprintf (stream, _(" Removes symbols and sections from files\n"));
599 fprintf (stream, _(" The options are:\n"));
600 fprintf (stream, _("\
601 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
602 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
603 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
604 -p --preserve-dates Copy modified/access timestamps to the output\n\
605 -D --enable-deterministic-archives\n\
606 Produce deterministic output when stripping archives\n\
607 -R --remove-section=<name> Remove section <name> from the output\n\
608 -s --strip-all Remove all symbol and relocation information\n\
609 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
610 --strip-dwo Remove all DWO sections\n\
611 --strip-unneeded Remove all symbols not needed by relocations\n\
612 --only-keep-debug Strip everything but the debug information\n\
613 -N --strip-symbol=<name> Do not copy symbol <name>\n\
614 -K --keep-symbol=<name> Do not strip symbol <name>\n\
615 --keep-file-symbols Do not strip file symbol(s)\n\
616 -w --wildcard Permit wildcard in symbol comparison\n\
617 -x --discard-all Remove all non-global symbols\n\
618 -X --discard-locals Remove any compiler-generated symbols\n\
619 -v --verbose List all object files modified\n\
620 -V --version Display this program's version number\n\
621 -h --help Display this output\n\
622 --info List object formats & architectures supported\n\
623 -o <file> Place stripped output into <file>\n\
626 list_supported_targets (program_name, stream);
627 if (REPORT_BUGS_TO[0] && exit_status == 0)
628 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
632 /* Parse section flags into a flagword, with a fatal error if the
633 string can't be parsed. */
636 parse_flags (const char *s)
646 snext = strchr (s, ',');
656 #define PARSE_FLAG(fname,fval) \
657 else if (strncasecmp (fname, s, len) == 0) ret |= fval
658 PARSE_FLAG ("alloc", SEC_ALLOC);
659 PARSE_FLAG ("load", SEC_LOAD);
660 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
661 PARSE_FLAG ("readonly", SEC_READONLY);
662 PARSE_FLAG ("debug", SEC_DEBUGGING);
663 PARSE_FLAG ("code", SEC_CODE);
664 PARSE_FLAG ("data", SEC_DATA);
665 PARSE_FLAG ("rom", SEC_ROM);
666 PARSE_FLAG ("share", SEC_COFF_SHARED);
667 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
673 copy = (char *) xmalloc (len + 1);
674 strncpy (copy, s, len);
676 non_fatal (_("unrecognized section flag `%s'"), copy);
677 fatal (_("supported flags: %s"),
678 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
688 /* Find and optionally add an entry in the change_sections list. */
690 static struct section_list *
691 find_section_list (const char *name, bfd_boolean add)
693 struct section_list *p;
695 for (p = change_sections; p != NULL; p = p->next)
696 if (strcmp (p->name, name) == 0)
702 p = (struct section_list *) xmalloc (sizeof (struct section_list));
707 p->change_vma = CHANGE_IGNORE;
708 p->change_lma = CHANGE_IGNORE;
711 p->set_flags = FALSE;
714 p->next = change_sections;
720 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
723 eq_string (const void *s1, const void *s2)
725 return strcmp ((const char *) s1, (const char *) s2) == 0;
729 create_symbol_htab (void)
731 return htab_create_alloc (16, htab_hash_string, eq_string, NULL, xcalloc, free);
735 create_symbol_htabs (void)
737 strip_specific_htab = create_symbol_htab ();
738 strip_unneeded_htab = create_symbol_htab ();
739 keep_specific_htab = create_symbol_htab ();
740 localize_specific_htab = create_symbol_htab ();
741 globalize_specific_htab = create_symbol_htab ();
742 keepglobal_specific_htab = create_symbol_htab ();
743 weaken_specific_htab = create_symbol_htab ();
746 /* Add a symbol to strip_specific_list. */
749 add_specific_symbol (const char *name, htab_t htab)
751 *htab_find_slot (htab, name, INSERT) = (char *) name;
754 /* Add symbols listed in `filename' to strip_specific_list. */
756 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
757 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
760 add_specific_symbols (const char *filename, htab_t htab)
766 unsigned int line_count;
768 size = get_file_size (filename);
775 buffer = (char *) xmalloc (size + 2);
776 f = fopen (filename, FOPEN_RT);
778 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
780 if (fread (buffer, 1, size, f) == 0 || ferror (f))
781 fatal (_("%s: fread failed"), filename);
784 buffer [size] = '\n';
785 buffer [size + 1] = '\0';
789 for (line = buffer; * line != '\0'; line ++)
794 int finished = FALSE;
796 for (eol = line;; eol ++)
802 /* Cope with \n\r. */
810 /* Cope with \r\n. */
821 /* Line comment, Terminate the line here, in case a
822 name is present and then allow the rest of the
823 loop to find the real end of the line. */
835 /* A name may now exist somewhere between 'line' and 'eol'.
836 Strip off leading whitespace and trailing whitespace,
837 then add it to the list. */
838 for (name = line; IS_WHITESPACE (* name); name ++)
840 for (name_end = name;
841 (! IS_WHITESPACE (* name_end))
842 && (! IS_LINE_TERMINATOR (* name_end));
846 if (! IS_LINE_TERMINATOR (* name_end))
850 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
853 if (! IS_LINE_TERMINATOR (* extra))
854 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
855 filename, line_count);
861 add_specific_symbol (name, htab);
863 /* Advance line pointer to end of line. The 'eol ++' in the for
864 loop above will then advance us to the start of the next line. */
870 /* See whether a symbol should be stripped or kept
871 based on strip_specific_list and keep_symbols. */
874 is_specified_symbol_predicate (void **slot, void *data)
876 struct is_specified_symbol_predicate_data *d =
877 (struct is_specified_symbol_predicate_data *) data;
878 const char *slot_name = (char *) *slot;
880 if (*slot_name != '!')
882 if (! fnmatch (slot_name, d->name, 0))
885 /* Stop traversal. */
891 if (fnmatch (slot_name + 1, d->name, 0))
894 /* Stop traversal. */
899 /* Continue traversal. */
904 is_specified_symbol (const char *name, htab_t htab)
908 struct is_specified_symbol_predicate_data data;
913 htab_traverse (htab, is_specified_symbol_predicate, &data);
918 return htab_find (htab, name) != NULL;
921 /* Return a pointer to the symbol used as a signature for GROUP. */
924 group_signature (asection *group)
926 bfd *abfd = group->owner;
927 Elf_Internal_Shdr *ghdr;
929 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
932 ghdr = &elf_section_data (group)->this_hdr;
933 if (ghdr->sh_link < elf_numsections (abfd))
935 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
936 Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
938 if (symhdr->sh_type == SHT_SYMTAB
939 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
940 return isympp[ghdr->sh_info - 1];
945 /* Return TRUE if the section is a DWO section. */
948 is_dwo_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
950 const char *name = bfd_get_section_name (abfd, sec);
951 int len = strlen (name);
953 return strncmp (name + len - 4, ".dwo", 4) == 0;
956 /* See if a non-group section is being removed. */
959 is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
961 if (sections_removed || sections_copied)
963 struct section_list *p;
965 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE);
967 if (sections_removed && p != NULL && p->remove)
969 if (sections_copied && (p == NULL || ! p->copy))
973 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
975 if (strip_symbols == STRIP_DEBUG
976 || strip_symbols == STRIP_UNNEEDED
977 || strip_symbols == STRIP_ALL
978 || discard_locals == LOCALS_ALL
979 || convert_debugging)
982 if (strip_symbols == STRIP_DWO)
983 return is_dwo_section (abfd, sec);
985 if (strip_symbols == STRIP_NONDEBUG)
989 if (strip_symbols == STRIP_NONDWO)
990 return !is_dwo_section (abfd, sec);
995 /* See if a section is being removed. */
998 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1000 if (is_strip_section_1 (abfd, sec))
1003 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
1007 asection *elt, *first;
1010 If we are going to strip the group signature symbol, then
1011 strip the group section too. */
1012 gsym = group_signature (sec);
1017 if ((strip_symbols == STRIP_ALL
1018 && !is_specified_symbol (gname, keep_specific_htab))
1019 || is_specified_symbol (gname, strip_specific_htab))
1022 /* Remove the group section if all members are removed. */
1023 first = elt = elf_next_in_group (sec);
1026 if (!is_strip_section_1 (abfd, elt))
1028 elt = elf_next_in_group (elt);
1039 /* Return true if SYM is a hidden symbol. */
1042 is_hidden_symbol (asymbol *sym)
1044 elf_symbol_type *elf_sym;
1046 elf_sym = elf_symbol_from (sym->the_bfd, sym);
1047 if (elf_sym != NULL)
1048 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
1057 /* Choose which symbol entries to copy; put the result in OSYMS.
1058 We don't copy in place, because that confuses the relocs.
1059 Return the number of symbols to print. */
1062 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
1063 asymbol **isyms, long symcount)
1065 asymbol **from = isyms, **to = osyms;
1066 long src_count = 0, dst_count = 0;
1067 int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
1069 for (; src_count < symcount; src_count++)
1071 asymbol *sym = from[src_count];
1072 flagword flags = sym->flags;
1073 char *name = (char *) bfd_asymbol_name (sym);
1075 bfd_boolean used_in_reloc = FALSE;
1076 bfd_boolean undefined;
1077 bfd_boolean rem_leading_char;
1078 bfd_boolean add_leading_char;
1080 undefined = bfd_is_und_section (bfd_get_section (sym));
1082 if (redefine_sym_list)
1084 char *old_name, *new_name;
1086 old_name = (char *) bfd_asymbol_name (sym);
1087 new_name = (char *) lookup_sym_redefinition (old_name);
1088 bfd_asymbol_name (sym) = new_name;
1092 /* Check if we will remove the current leading character. */
1094 (name[0] == bfd_get_symbol_leading_char (abfd))
1095 && (change_leading_char
1096 || (remove_leading_char
1097 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1099 || bfd_is_com_section (bfd_get_section (sym)))));
1101 /* Check if we will add a new leading character. */
1104 && (bfd_get_symbol_leading_char (obfd) != '\0')
1105 && (bfd_get_symbol_leading_char (abfd) == '\0'
1106 || (name[0] == bfd_get_symbol_leading_char (abfd)));
1108 /* Short circuit for change_leading_char if we can do it in-place. */
1109 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
1111 name[0] = bfd_get_symbol_leading_char (obfd);
1112 bfd_asymbol_name (sym) = name;
1113 rem_leading_char = FALSE;
1114 add_leading_char = FALSE;
1117 /* Remove leading char. */
1118 if (rem_leading_char)
1119 bfd_asymbol_name (sym) = ++name;
1121 /* Add new leading char and/or prefix. */
1122 if (add_leading_char || prefix_symbols_string)
1126 ptr = n = (char *) xmalloc (1 + strlen (prefix_symbols_string)
1127 + strlen (name) + 1);
1128 if (add_leading_char)
1129 *ptr++ = bfd_get_symbol_leading_char (obfd);
1131 if (prefix_symbols_string)
1133 strcpy (ptr, prefix_symbols_string);
1134 ptr += strlen (prefix_symbols_string);
1138 bfd_asymbol_name (sym) = n;
1142 if (strip_symbols == STRIP_ALL)
1144 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
1145 || ((flags & BSF_SECTION_SYM) != 0
1146 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
1150 used_in_reloc = TRUE;
1152 else if (relocatable /* Relocatable file. */
1153 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1154 || bfd_is_com_section (bfd_get_section (sym))))
1156 else if (bfd_decode_symclass (sym) == 'I')
1157 /* Global symbols in $idata sections need to be retained
1158 even if relocatable is FALSE. External users of the
1159 library containing the $idata section may reference these
1162 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1163 || (flags & BSF_WEAK) != 0
1165 || bfd_is_com_section (bfd_get_section (sym)))
1166 keep = strip_symbols != STRIP_UNNEEDED;
1167 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1168 keep = (strip_symbols != STRIP_DEBUG
1169 && strip_symbols != STRIP_UNNEEDED
1170 && ! convert_debugging);
1171 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
1172 /* COMDAT sections store special information in local
1173 symbols, so we cannot risk stripping any of them. */
1175 else /* Local symbol. */
1176 keep = (strip_symbols != STRIP_UNNEEDED
1177 && (discard_locals != LOCALS_ALL
1178 && (discard_locals != LOCALS_START_L
1179 || ! bfd_is_local_label (abfd, sym))));
1181 if (keep && is_specified_symbol (name, strip_specific_htab))
1183 /* There are multiple ways to set 'keep' above, but if it
1184 was the relocatable symbol case, then that's an error. */
1187 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1195 && !(flags & BSF_KEEP)
1196 && is_specified_symbol (name, strip_unneeded_htab))
1200 && ((keep_file_symbols && (flags & BSF_FILE))
1201 || is_specified_symbol (name, keep_specific_htab)))
1204 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
1209 if ((flags & BSF_GLOBAL) != 0
1210 && (weaken || is_specified_symbol (name, weaken_specific_htab)))
1212 sym->flags &= ~ BSF_GLOBAL;
1213 sym->flags |= BSF_WEAK;
1217 && (flags & (BSF_GLOBAL | BSF_WEAK))
1218 && (is_specified_symbol (name, localize_specific_htab)
1219 || (htab_elements (keepglobal_specific_htab) != 0
1220 && ! is_specified_symbol (name, keepglobal_specific_htab))
1221 || (localize_hidden && is_hidden_symbol (sym))))
1223 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1224 sym->flags |= BSF_LOCAL;
1228 && (flags & BSF_LOCAL)
1229 && is_specified_symbol (name, globalize_specific_htab))
1231 sym->flags &= ~ BSF_LOCAL;
1232 sym->flags |= BSF_GLOBAL;
1235 to[dst_count++] = sym;
1239 to[dst_count] = NULL;
1244 /* Find the redefined name of symbol SOURCE. */
1247 lookup_sym_redefinition (const char *source)
1249 struct redefine_node *list;
1251 for (list = redefine_sym_list; list != NULL; list = list->next)
1252 if (strcmp (source, list->source) == 0)
1253 return list->target;
1258 /* Add a node to a symbol redefine list. */
1261 redefine_list_append (const char *cause, const char *source, const char *target)
1263 struct redefine_node **p;
1264 struct redefine_node *list;
1265 struct redefine_node *new_node;
1267 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1269 if (strcmp (source, list->source) == 0)
1270 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1273 if (strcmp (target, list->target) == 0)
1274 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1278 new_node = (struct redefine_node *) xmalloc (sizeof (struct redefine_node));
1280 new_node->source = strdup (source);
1281 new_node->target = strdup (target);
1282 new_node->next = NULL;
1287 /* Handle the --redefine-syms option. Read lines containing "old new"
1288 from the file, and add them to the symbol redefine list. */
1291 add_redefine_syms_file (const char *filename)
1300 file = fopen (filename, "r");
1302 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1303 filename, strerror (errno));
1306 buf = (char *) xmalloc (bufsize + 1 /* For the terminating NUL. */);
1314 /* Collect the input symbol name. */
1315 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1323 buf = (char *) xrealloc (buf, bufsize + 1);
1331 /* Eat white space between the symbol names. */
1332 while (IS_WHITESPACE (c))
1334 if (c == '#' || IS_LINE_TERMINATOR (c))
1339 /* Collect the output symbol name. */
1341 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1349 buf = (char *) xrealloc (buf, bufsize + 1);
1357 /* Eat white space at end of line. */
1358 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1363 if ((c == '\r' && (c = getc (file)) == '\n')
1364 || c == '\n' || c == EOF)
1367 /* Append the redefinition to the list. */
1369 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1380 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1382 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1383 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1386 /* Eat the rest of the line and finish it. */
1387 while (c != '\n' && c != EOF)
1393 fatal (_("%s:%d: premature end of file"), filename, lineno);
1398 /* Copy unkown object file IBFD onto OBFD.
1399 Returns TRUE upon success, FALSE otherwise. */
1402 copy_unknown_object (bfd *ibfd, bfd *obfd)
1410 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1412 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1419 non_fatal (_("stat returns negative size for `%s'"),
1420 bfd_get_archive_filename (ibfd));
1424 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1426 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1431 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1432 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1434 cbuf = (char *) xmalloc (BUFSIZE);
1436 while (ncopied < size)
1438 tocopy = size - ncopied;
1439 if (tocopy > BUFSIZE)
1442 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1443 != (bfd_size_type) tocopy)
1445 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1450 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1451 != (bfd_size_type) tocopy)
1453 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1461 /* We should at least to be able to read it back when copying an
1462 unknown object in an archive. */
1463 chmod (bfd_get_filename (obfd), buf.st_mode | S_IRUSR);
1468 /* Copy object file IBFD onto OBFD.
1469 Returns TRUE upon success, FALSE otherwise. */
1472 copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
1476 asection **osections = NULL;
1477 asection *gnu_debuglink_section = NULL;
1478 bfd_size_type *gaps = NULL;
1479 bfd_size_type max_gap = 0;
1482 enum bfd_architecture iarch;
1485 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1486 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1487 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1488 fatal (_("Unable to change endianness of input file(s)"));
1490 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1492 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1497 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1498 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1499 bfd_get_filename (obfd), bfd_get_target (obfd));
1508 start = bfd_get_start_address (ibfd);
1509 start += change_start;
1512 /* Neither the start address nor the flags
1513 need to be set for a core file. */
1514 if (bfd_get_format (obfd) != bfd_core)
1518 flags = bfd_get_file_flags (ibfd);
1519 flags |= bfd_flags_to_set;
1520 flags &= ~bfd_flags_to_clear;
1521 flags &= bfd_applicable_file_flags (obfd);
1523 if (strip_symbols == STRIP_ALL)
1524 flags &= ~HAS_RELOC;
1526 if (!bfd_set_start_address (obfd, start)
1527 || !bfd_set_file_flags (obfd, flags))
1529 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1534 /* Copy architecture of input file to output file. */
1535 iarch = bfd_get_arch (ibfd);
1536 imach = bfd_get_mach (ibfd);
1539 if (bfd_get_arch_info (ibfd) == NULL
1540 || bfd_get_arch_info (ibfd)->arch == bfd_arch_unknown)
1542 iarch = input_arch->arch;
1543 imach = input_arch->mach;
1546 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1547 bfd_get_archive_filename (ibfd));
1549 if (!bfd_set_arch_mach (obfd, iarch, imach)
1550 && (ibfd->target_defaulted
1551 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1553 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1554 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1555 bfd_get_archive_filename (ibfd));
1557 non_fatal (_("Output file cannot represent architecture `%s'"),
1558 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1559 bfd_get_mach (ibfd)));
1563 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1565 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1569 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
1570 && bfd_pei_p (obfd))
1572 /* Set up PE parameters. */
1573 pe_data_type *pe = pe_data (obfd);
1575 /* Copy PE parameters before changing them. */
1576 if (ibfd->xvec->flavour == bfd_target_coff_flavour
1577 && bfd_pei_p (ibfd))
1578 pe->pe_opthdr = pe_data (ibfd)->pe_opthdr;
1580 if (pe_file_alignment != (bfd_vma) -1)
1581 pe->pe_opthdr.FileAlignment = pe_file_alignment;
1583 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
1585 if (pe_heap_commit != (bfd_vma) -1)
1586 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_commit;
1588 if (pe_heap_reserve != (bfd_vma) -1)
1589 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_reserve;
1591 if (pe_image_base != (bfd_vma) -1)
1592 pe->pe_opthdr.ImageBase = pe_image_base;
1594 if (pe_section_alignment != (bfd_vma) -1)
1595 pe->pe_opthdr.SectionAlignment = pe_section_alignment;
1597 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
1599 if (pe_stack_commit != (bfd_vma) -1)
1600 pe->pe_opthdr.SizeOfStackCommit = pe_stack_commit;
1602 if (pe_stack_reserve != (bfd_vma) -1)
1603 pe->pe_opthdr.SizeOfStackCommit = pe_stack_reserve;
1605 if (pe_subsystem != -1)
1606 pe->pe_opthdr.Subsystem = pe_subsystem;
1608 if (pe_major_subsystem_version != -1)
1609 pe->pe_opthdr.MajorSubsystemVersion = pe_major_subsystem_version;
1611 if (pe_minor_subsystem_version != -1)
1612 pe->pe_opthdr.MinorSubsystemVersion = pe_minor_subsystem_version;
1614 if (pe_file_alignment > pe_section_alignment)
1616 char file_alignment[20], section_alignment[20];
1618 sprintf_vma (file_alignment, pe_file_alignment);
1619 sprintf_vma (section_alignment, pe_section_alignment);
1620 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1622 file_alignment, section_alignment);
1629 if (osympp != isympp)
1635 symsize = bfd_get_symtab_upper_bound (ibfd);
1638 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1642 osympp = isympp = (asymbol **) xmalloc (symsize);
1643 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1646 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1650 /* BFD mandates that all output sections be created and sizes set before
1651 any output is done. Thus, we traverse all sections multiple times. */
1652 bfd_map_over_sections (ibfd, setup_section, obfd);
1654 if (!extract_symbol)
1655 setup_bfd_headers (ibfd, obfd);
1657 if (add_sections != NULL)
1659 struct section_add *padd;
1660 struct section_list *pset;
1662 for (padd = add_sections; padd != NULL; padd = padd->next)
1666 pset = find_section_list (padd->name, FALSE);
1670 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1671 if (pset != NULL && pset->set_flags)
1672 flags = pset->flags | SEC_HAS_CONTENTS;
1674 /* bfd_make_section_with_flags() does not return very helpful
1675 error codes, so check for the most likely user error first. */
1676 if (bfd_get_section_by_name (obfd, padd->name))
1678 bfd_nonfatal_message (NULL, obfd, NULL,
1679 _("can't add section '%s'"), padd->name);
1684 /* We use LINKER_CREATED here so that the backend hooks
1685 will create any special section type information,
1686 instead of presuming we know what we're doing merely
1687 because we set the flags. */
1688 padd->section = bfd_make_section_with_flags
1689 (obfd, padd->name, flags | SEC_LINKER_CREATED);
1690 if (padd->section == NULL)
1692 bfd_nonfatal_message (NULL, obfd, NULL,
1693 _("can't create section `%s'"),
1699 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1701 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1707 if (pset->change_vma != CHANGE_IGNORE)
1708 if (! bfd_set_section_vma (obfd, padd->section,
1711 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1715 if (pset->change_lma != CHANGE_IGNORE)
1717 padd->section->lma = pset->lma_val;
1719 if (! bfd_set_section_alignment
1720 (obfd, padd->section,
1721 bfd_section_alignment (obfd, padd->section)))
1723 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1731 if (gnu_debuglink_filename != NULL)
1733 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1734 (obfd, gnu_debuglink_filename);
1736 if (gnu_debuglink_section == NULL)
1738 bfd_nonfatal_message (NULL, obfd, NULL,
1739 _("cannot create debug link section `%s'"),
1740 gnu_debuglink_filename);
1744 /* Special processing for PE format files. We
1745 have no way to distinguish PE from COFF here. */
1746 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1748 bfd_vma debuglink_vma;
1749 asection * highest_section;
1752 /* The PE spec requires that all sections be adjacent and sorted
1753 in ascending order of VMA. It also specifies that debug
1754 sections should be last. This is despite the fact that debug
1755 sections are not loaded into memory and so in theory have no
1758 This means that the debuglink section must be given a non-zero
1759 VMA which makes it contiguous with other debug sections. So
1760 walk the current section list, find the section with the
1761 highest VMA and start the debuglink section after that one. */
1762 for (sec = obfd->sections, highest_section = NULL;
1766 && (highest_section == NULL
1767 || sec->vma > highest_section->vma))
1768 highest_section = sec;
1770 if (highest_section)
1771 debuglink_vma = BFD_ALIGN (highest_section->vma
1772 + highest_section->size,
1773 /* FIXME: We ought to be using
1774 COFF_PAGE_SIZE here or maybe
1775 bfd_get_section_alignment() (if it
1776 was set) but since this is for PE
1777 and we know the required alignment
1778 it is easier just to hard code it. */
1781 /* Umm, not sure what to do in this case. */
1782 debuglink_vma = 0x1000;
1784 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1788 if (bfd_count_sections (obfd) != 0
1789 && (gap_fill_set || pad_to_set))
1794 /* We must fill in gaps between the sections and/or we must pad
1795 the last section to a specified address. We do this by
1796 grabbing a list of the sections, sorting them by VMA, and
1797 increasing the section sizes as required to fill the gaps.
1798 We write out the gap contents below. */
1800 c = bfd_count_sections (obfd);
1801 osections = (asection **) xmalloc (c * sizeof (asection *));
1803 bfd_map_over_sections (obfd, get_sections, &set);
1805 qsort (osections, c, sizeof (asection *), compare_section_lma);
1807 gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type));
1808 memset (gaps, 0, c * sizeof (bfd_size_type));
1812 for (i = 0; i < c - 1; i++)
1816 bfd_vma gap_start, gap_stop;
1818 flags = bfd_get_section_flags (obfd, osections[i]);
1819 if ((flags & SEC_HAS_CONTENTS) == 0
1820 || (flags & SEC_LOAD) == 0)
1823 size = bfd_section_size (obfd, osections[i]);
1824 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1825 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1826 if (gap_start < gap_stop)
1828 if (! bfd_set_section_size (obfd, osections[i],
1829 size + (gap_stop - gap_start)))
1831 bfd_nonfatal_message (NULL, obfd, osections[i],
1832 _("Can't fill gap after section"));
1836 gaps[i] = gap_stop - gap_start;
1837 if (max_gap < gap_stop - gap_start)
1838 max_gap = gap_stop - gap_start;
1848 lma = bfd_section_lma (obfd, osections[c - 1]);
1849 size = bfd_section_size (obfd, osections[c - 1]);
1850 if (lma + size < pad_to)
1852 if (! bfd_set_section_size (obfd, osections[c - 1],
1855 bfd_nonfatal_message (NULL, obfd, osections[c - 1],
1856 _("can't add padding"));
1861 gaps[c - 1] = pad_to - (lma + size);
1862 if (max_gap < pad_to - (lma + size))
1863 max_gap = pad_to - (lma + size);
1869 /* Symbol filtering must happen after the output sections
1870 have been created, but before their contents are set. */
1872 if (convert_debugging)
1873 dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE);
1875 if (strip_symbols == STRIP_DEBUG
1876 || strip_symbols == STRIP_ALL
1877 || strip_symbols == STRIP_UNNEEDED
1878 || strip_symbols == STRIP_NONDEBUG
1879 || strip_symbols == STRIP_DWO
1880 || strip_symbols == STRIP_NONDWO
1881 || discard_locals != LOCALS_UNDEF
1883 || htab_elements (strip_specific_htab) != 0
1884 || htab_elements (keep_specific_htab) != 0
1885 || htab_elements (localize_specific_htab) != 0
1886 || htab_elements (globalize_specific_htab) != 0
1887 || htab_elements (keepglobal_specific_htab) != 0
1888 || htab_elements (weaken_specific_htab) != 0
1889 || prefix_symbols_string
1892 || convert_debugging
1893 || change_leading_char
1894 || remove_leading_char
1895 || redefine_sym_list
1898 /* Mark symbols used in output relocations so that they
1899 are kept, even if they are local labels or static symbols.
1901 Note we iterate over the input sections examining their
1902 relocations since the relocations for the output sections
1903 haven't been set yet. mark_symbols_used_in_relocations will
1904 ignore input sections which have no corresponding output
1906 if (strip_symbols != STRIP_ALL)
1907 bfd_map_over_sections (ibfd,
1908 mark_symbols_used_in_relocations,
1910 osympp = (asymbol **) xmalloc ((symcount + 1) * sizeof (asymbol *));
1911 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1914 if (convert_debugging && dhandle != NULL)
1916 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1923 bfd_set_symtab (obfd, osympp, symcount);
1925 /* This has to happen before section positions are set. */
1926 bfd_map_over_sections (ibfd, copy_relocations_in_section, obfd);
1928 /* This has to happen after the symbol table has been set. */
1929 bfd_map_over_sections (ibfd, copy_section, obfd);
1931 if (add_sections != NULL)
1933 struct section_add *padd;
1935 for (padd = add_sections; padd != NULL; padd = padd->next)
1937 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1940 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1946 if (gnu_debuglink_filename != NULL)
1948 if (! bfd_fill_in_gnu_debuglink_section
1949 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
1951 bfd_nonfatal_message (NULL, obfd, NULL,
1952 _("cannot fill debug link section `%s'"),
1953 gnu_debuglink_filename);
1958 if (gap_fill_set || pad_to_set)
1963 /* Fill in the gaps. */
1966 buf = (bfd_byte *) xmalloc (max_gap);
1967 memset (buf, gap_fill, max_gap);
1969 c = bfd_count_sections (obfd);
1970 for (i = 0; i < c; i++)
1978 off = bfd_section_size (obfd, osections[i]) - left;
1989 if (! bfd_set_section_contents (obfd, osections[i], buf,
1992 bfd_nonfatal_message (NULL, obfd, osections[i], NULL);
2003 /* Do not copy backend data if --extract-symbol is passed; anything
2004 that needs to look at the section contents will fail. */
2008 /* Allow the BFD backend to copy any private data it understands
2009 from the input BFD to the output BFD. This is done last to
2010 permit the routine to look at the filtered symbol table, which is
2011 important for the ECOFF code at least. */
2012 if (! bfd_copy_private_bfd_data (ibfd, obfd))
2014 bfd_nonfatal_message (NULL, obfd, NULL,
2015 _("error copying private BFD data"));
2019 /* Switch to the alternate machine code. We have to do this at the
2020 very end, because we only initialize the header when we create
2021 the first section. */
2022 if (use_alt_mach_code != 0)
2024 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
2026 non_fatal (_("this target does not support %lu alternative machine codes"),
2028 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2030 non_fatal (_("treating that number as an absolute e_machine value instead"));
2031 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
2034 non_fatal (_("ignoring the alternative value"));
2041 /* Read each archive element in turn from IBFD, copy the
2042 contents to temp file, and keep the temp file handle.
2043 If 'force_output_target' is TRUE then make sure that
2044 all elements in the new archive are of the type
2048 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
2049 bfd_boolean force_output_target,
2050 const bfd_arch_info_type *input_arch)
2054 struct name_list *next;
2058 bfd **ptr = &obfd->archive_head;
2061 const char *filename;
2063 /* Make a temp directory to hold the contents. */
2064 dir = make_tempdir (bfd_get_filename (obfd));
2066 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2069 if (strip_symbols == STRIP_ALL)
2070 obfd->has_armap = FALSE;
2072 obfd->has_armap = ibfd->has_armap;
2073 obfd->is_thin_archive = ibfd->is_thin_archive;
2076 obfd->flags |= BFD_DETERMINISTIC_OUTPUT;
2080 this_element = bfd_openr_next_archived_file (ibfd, NULL);
2082 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
2085 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
2089 while (!status && this_element != NULL)
2095 int stat_status = 0;
2096 bfd_boolean del = TRUE;
2097 bfd_boolean ok_object;
2099 /* Create an output file for this member. */
2100 output_name = concat (dir, "/",
2101 bfd_get_filename (this_element), (char *) 0);
2103 /* If the file already exists, make another temp dir. */
2104 if (stat (output_name, &buf) >= 0)
2106 output_name = make_tempdir (output_name);
2107 if (output_name == NULL)
2108 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2111 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2112 l->name = output_name;
2116 output_name = concat (output_name, "/",
2117 bfd_get_filename (this_element), (char *) 0);
2122 stat_status = bfd_stat_arch_elt (this_element, &buf);
2124 if (stat_status != 0)
2125 non_fatal (_("internal stat error on %s"),
2126 bfd_get_filename (this_element));
2129 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2130 l->name = output_name;
2135 ok_object = bfd_check_format (this_element, bfd_object);
2137 bfd_nonfatal_message (NULL, this_element, NULL,
2138 _("Unable to recognise the format of file"));
2140 /* PR binutils/3110: Cope with archives
2141 containing multiple target types. */
2142 if (force_output_target || !ok_object)
2143 output_bfd = bfd_openw (output_name, output_target);
2145 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
2147 if (output_bfd == NULL)
2149 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2156 del = !copy_object (this_element, output_bfd, input_arch);
2158 if (del && bfd_get_arch (this_element) == bfd_arch_unknown)
2159 /* Try again as an unknown object file. */
2161 else if (!bfd_close (output_bfd))
2163 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2164 /* Error in new object file. Don't change archive. */
2171 del = !copy_unknown_object (this_element, output_bfd);
2172 if (!bfd_close_all_done (output_bfd))
2174 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2175 /* Error in new object file. Don't change archive. */
2182 unlink (output_name);
2187 if (preserve_dates && stat_status == 0)
2188 set_times (output_name, &buf);
2190 /* Open the newly output file and attach to our list. */
2191 output_bfd = bfd_openr (output_name, output_target);
2193 l->obfd = output_bfd;
2196 ptr = &output_bfd->archive_next;
2198 last_element = this_element;
2200 this_element = bfd_openr_next_archived_file (ibfd, last_element);
2202 bfd_close (last_element);
2207 filename = bfd_get_filename (obfd);
2208 if (!bfd_close (obfd))
2211 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2215 filename = bfd_get_filename (ibfd);
2216 if (!bfd_close (ibfd))
2219 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2223 /* Delete all the files that we opened. */
2224 for (l = list; l != NULL; l = l->next)
2226 if (l->obfd == NULL)
2230 bfd_close (l->obfd);
2238 set_long_section_mode (bfd *output_bfd, bfd *input_bfd, enum long_section_name_handling style)
2240 /* This is only relevant to Coff targets. */
2241 if (bfd_get_flavour (output_bfd) == bfd_target_coff_flavour)
2244 && bfd_get_flavour (input_bfd) == bfd_target_coff_flavour)
2245 style = bfd_coff_long_section_names (input_bfd) ? ENABLE : DISABLE;
2246 bfd_coff_set_long_section_names (output_bfd, style != DISABLE);
2250 /* The top-level control. */
2253 copy_file (const char *input_filename, const char *output_filename,
2254 const char *input_target, const char *output_target,
2255 const bfd_arch_info_type *input_arch)
2258 char **obj_matching;
2259 char **core_matching;
2260 off_t size = get_file_size (input_filename);
2265 non_fatal (_("error: the input file '%s' is empty"),
2271 /* To allow us to do "strip *" without dying on the first
2272 non-object file, failures are nonfatal. */
2273 ibfd = bfd_openr (input_filename, input_target);
2276 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2281 switch (do_debug_sections)
2284 ibfd->flags |= BFD_COMPRESS;
2287 ibfd->flags |= BFD_DECOMPRESS;
2293 if (bfd_check_format (ibfd, bfd_archive))
2295 bfd_boolean force_output_target;
2298 /* bfd_get_target does not return the correct value until
2299 bfd_check_format succeeds. */
2300 if (output_target == NULL)
2302 output_target = bfd_get_target (ibfd);
2303 force_output_target = FALSE;
2306 force_output_target = TRUE;
2308 obfd = bfd_openw (output_filename, output_target);
2311 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2315 /* This is a no-op on non-Coff targets. */
2316 set_long_section_mode (obfd, ibfd, long_section_names);
2318 copy_archive (ibfd, obfd, output_target, force_output_target, input_arch);
2320 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
2325 /* bfd_get_target does not return the correct value until
2326 bfd_check_format succeeds. */
2327 if (output_target == NULL)
2328 output_target = bfd_get_target (ibfd);
2330 obfd = bfd_openw (output_filename, output_target);
2333 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2337 /* This is a no-op on non-Coff targets. */
2338 set_long_section_mode (obfd, ibfd, long_section_names);
2340 if (! copy_object (ibfd, obfd, input_arch))
2343 if (!bfd_close (obfd))
2346 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2350 if (!bfd_close (ibfd))
2353 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2359 bfd_error_type obj_error = bfd_get_error ();
2360 bfd_error_type core_error;
2362 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2364 /* This probably can't happen.. */
2365 if (obj_error == bfd_error_file_ambiguously_recognized)
2366 free (obj_matching);
2370 core_error = bfd_get_error ();
2371 /* Report the object error in preference to the core error. */
2372 if (obj_error != core_error)
2373 bfd_set_error (obj_error);
2375 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2377 if (obj_error == bfd_error_file_ambiguously_recognized)
2379 list_matching_formats (obj_matching);
2380 free (obj_matching);
2382 if (core_error == bfd_error_file_ambiguously_recognized)
2384 list_matching_formats (core_matching);
2385 free (core_matching);
2392 /* Add a name to the section renaming list. */
2395 add_section_rename (const char * old_name, const char * new_name,
2398 section_rename * srename;
2400 /* Check for conflicts first. */
2401 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2402 if (strcmp (srename->old_name, old_name) == 0)
2404 /* Silently ignore duplicate definitions. */
2405 if (strcmp (srename->new_name, new_name) == 0
2406 && srename->flags == flags)
2409 fatal (_("Multiple renames of section %s"), old_name);
2412 srename = (section_rename *) xmalloc (sizeof (* srename));
2414 srename->old_name = old_name;
2415 srename->new_name = new_name;
2416 srename->flags = flags;
2417 srename->next = section_rename_list;
2419 section_rename_list = srename;
2422 /* Check the section rename list for a new name of the input section
2423 ISECTION. Return the new name if one is found.
2424 Also set RETURNED_FLAGS to the flags to be used for this section. */
2427 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2428 flagword * returned_flags)
2430 const char * old_name = bfd_section_name (ibfd, isection);
2431 section_rename * srename;
2433 /* Default to using the flags of the input section. */
2434 * returned_flags = bfd_get_section_flags (ibfd, isection);
2436 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2437 if (strcmp (srename->old_name, old_name) == 0)
2439 if (srename->flags != (flagword) -1)
2440 * returned_flags = srename->flags;
2442 return srename->new_name;
2448 /* Once each of the sections is copied, we may still need to do some
2449 finalization work for private section headers. Do that here. */
2452 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2454 /* Allow the BFD backend to copy any private data it understands
2455 from the input section to the output section. */
2456 if (! bfd_copy_private_header_data (ibfd, obfd))
2459 bfd_nonfatal_message (NULL, ibfd, NULL,
2460 _("error in private header data"));
2464 /* All went well. */
2468 /* Create a section in OBFD with the same
2469 name and attributes as ISECTION in IBFD. */
2472 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2474 bfd *obfd = (bfd *) obfdarg;
2475 struct section_list *p;
2483 char *prefix = NULL;
2484 bfd_boolean make_nobits;
2486 if (is_strip_section (ibfd, isection))
2489 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
2493 /* Get the, possibly new, name of the output section. */
2494 name = find_section_rename (ibfd, isection, & flags);
2496 /* Prefix sections. */
2497 if ((prefix_alloc_sections_string)
2498 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2499 prefix = prefix_alloc_sections_string;
2500 else if (prefix_sections_string)
2501 prefix = prefix_sections_string;
2507 n = (char *) xmalloc (strlen (prefix) + strlen (name) + 1);
2513 make_nobits = FALSE;
2514 if (p != NULL && p->set_flags)
2515 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2516 else if (strip_symbols == STRIP_NONDEBUG
2517 && (flags & (SEC_ALLOC | SEC_GROUP)) != 0
2518 && !(ibfd->xvec->flavour == bfd_target_elf_flavour
2519 && elf_section_type (isection) == SHT_NOTE))
2521 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
2522 if (obfd->xvec->flavour == bfd_target_elf_flavour)
2526 /* Twiddle the input section flags so that it seems to
2527 elf.c:copy_private_bfd_data that section flags have not
2528 changed between input and output sections. This hack
2529 prevents wholesale rewriting of the program headers. */
2530 isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
2534 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2536 if (osection == NULL)
2538 err = _("failed to create output section");
2543 elf_section_type (osection) = SHT_NOBITS;
2545 size = bfd_section_size (ibfd, isection);
2547 size = (size + interleave - 1) / interleave * copy_width;
2548 else if (extract_symbol)
2550 if (! bfd_set_section_size (obfd, osection, size))
2552 err = _("failed to set size");
2556 vma = bfd_section_vma (ibfd, isection);
2557 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2559 else if (p != NULL && p->change_vma == CHANGE_SET)
2562 vma += change_section_address;
2564 if (! bfd_set_section_vma (obfd, osection, vma))
2566 err = _("failed to set vma");
2570 lma = isection->lma;
2571 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2573 if (p->change_lma == CHANGE_MODIFY)
2575 else if (p->change_lma == CHANGE_SET)
2581 lma += change_section_address;
2583 osection->lma = lma;
2585 /* FIXME: This is probably not enough. If we change the LMA we
2586 may have to recompute the header for the file as well. */
2587 if (!bfd_set_section_alignment (obfd,
2589 bfd_section_alignment (ibfd, isection)))
2591 err = _("failed to set alignment");
2595 /* Copy merge entity size. */
2596 osection->entsize = isection->entsize;
2598 /* This used to be mangle_section; we do here to avoid using
2599 bfd_get_section_by_name since some formats allow multiple
2600 sections with the same name. */
2601 isection->output_section = osection;
2602 isection->output_offset = 0;
2604 /* Do not copy backend data if --extract-symbol is passed; anything
2605 that needs to look at the section contents will fail. */
2609 if ((isection->flags & SEC_GROUP) != 0)
2611 asymbol *gsym = group_signature (isection);
2615 gsym->flags |= BSF_KEEP;
2616 if (ibfd->xvec->flavour == bfd_target_elf_flavour)
2617 elf_group_id (isection) = gsym;
2621 /* Allow the BFD backend to copy any private data it understands
2622 from the input section to the output section. */
2623 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2625 err = _("failed to copy private data");
2629 /* All went well. */
2634 bfd_nonfatal_message (NULL, obfd, osection, err);
2637 /* Return TRUE if input section ISECTION should be skipped. */
2640 skip_section (bfd *ibfd, sec_ptr isection)
2646 /* If we have already failed earlier on,
2647 do not keep on generating complaints now. */
2654 if (is_strip_section (ibfd, isection))
2657 flags = bfd_get_section_flags (ibfd, isection);
2658 if ((flags & SEC_GROUP) != 0)
2661 osection = isection->output_section;
2662 size = bfd_get_section_size (isection);
2664 if (size == 0 || osection == 0)
2670 /* Copy relocations in input section ISECTION of IBFD to an output
2671 section with the same name in OBFDARG. If stripping then don't
2672 copy any relocation info. */
2675 copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2677 bfd *obfd = (bfd *) obfdarg;
2683 if (skip_section (ibfd, isection))
2686 osection = isection->output_section;
2688 /* Core files and DWO files do not need to be relocated. */
2689 if (bfd_get_format (obfd) == bfd_core || strip_symbols == STRIP_NONDWO)
2693 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2697 /* Do not complain if the target does not support relocations. */
2698 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2703 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
2711 bfd_set_reloc (obfd, osection, NULL, 0);
2712 osection->flags &= ~SEC_RELOC;
2716 relpp = (arelent **) xmalloc (relsize);
2717 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2721 bfd_nonfatal_message (NULL, ibfd, isection,
2722 _("relocation count is negative"));
2726 if (strip_symbols == STRIP_ALL)
2728 /* Remove relocations which are not in
2729 keep_strip_specific_list. */
2730 arelent **temp_relpp;
2731 long temp_relcount = 0;
2734 temp_relpp = (arelent **) xmalloc (relsize);
2735 for (i = 0; i < relcount; i++)
2736 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2737 keep_specific_htab))
2738 temp_relpp [temp_relcount++] = relpp [i];
2739 relcount = temp_relcount;
2744 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2747 osection->flags &= ~SEC_RELOC;
2753 /* Copy the data of input section ISECTION of IBFD
2754 to an output section with the same name in OBFD. */
2757 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2759 bfd *obfd = (bfd *) obfdarg;
2760 struct section_list *p;
2764 if (skip_section (ibfd, isection))
2767 osection = isection->output_section;
2768 size = bfd_get_section_size (isection);
2770 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2772 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2773 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2775 bfd_byte *memhunk = NULL;
2777 if (!bfd_get_full_section_contents (ibfd, isection, &memhunk))
2780 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
2786 /* We don't handle leftover bytes (too many possible behaviors,
2787 and we don't know what the user wants). The section length
2788 must be a multiple of the number of bytes to swap. */
2789 if ((size % reverse_bytes) == 0)
2794 for (i = 0; i < size; i += reverse_bytes)
2795 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
2797 bfd_byte *m = (bfd_byte *) memhunk;
2800 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
2801 m[(i + reverse_bytes) - (j + 1)] = b;
2805 /* User must pad the section up in order to do this. */
2806 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
2807 bfd_section_name (ibfd, isection), reverse_bytes);
2812 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2813 char *from = (char *) memhunk + copy_byte;
2814 char *to = (char *) memhunk;
2815 char *end = (char *) memhunk + size;
2818 for (; from < end; from += interleave)
2819 for (i = 0; i < copy_width; i++)
2822 size = (size + interleave - 1 - copy_byte) / interleave * copy_width;
2823 osection->lma /= interleave;
2826 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2829 bfd_nonfatal_message (NULL, obfd, osection, NULL);
2834 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2836 void *memhunk = xmalloc (size);
2838 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2839 flag--they can just remove the section entirely and add it
2840 back again. However, we do permit them to turn on the
2841 SEC_HAS_CONTENTS flag, and take it to mean that the section
2842 contents should be zeroed out. */
2844 memset (memhunk, 0, size);
2845 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
2848 bfd_nonfatal_message (NULL, obfd, osection, NULL);
2855 /* Get all the sections. This is used when --gap-fill or --pad-to is
2859 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
2861 asection ***secppp = (asection ***) secppparg;
2863 **secppp = osection;
2867 /* Sort sections by VMA. This is called via qsort, and is used when
2868 --gap-fill or --pad-to is used. We force non loadable or empty
2869 sections to the front, where they are easier to ignore. */
2872 compare_section_lma (const void *arg1, const void *arg2)
2874 const asection *const *sec1 = (const asection * const *) arg1;
2875 const asection *const *sec2 = (const asection * const *) arg2;
2876 flagword flags1, flags2;
2878 /* Sort non loadable sections to the front. */
2879 flags1 = (*sec1)->flags;
2880 flags2 = (*sec2)->flags;
2881 if ((flags1 & SEC_HAS_CONTENTS) == 0
2882 || (flags1 & SEC_LOAD) == 0)
2884 if ((flags2 & SEC_HAS_CONTENTS) != 0
2885 && (flags2 & SEC_LOAD) != 0)
2890 if ((flags2 & SEC_HAS_CONTENTS) == 0
2891 || (flags2 & SEC_LOAD) == 0)
2895 /* Sort sections by LMA. */
2896 if ((*sec1)->lma > (*sec2)->lma)
2898 else if ((*sec1)->lma < (*sec2)->lma)
2901 /* Sort sections with the same LMA by size. */
2902 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
2904 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
2910 /* Mark all the symbols which will be used in output relocations with
2911 the BSF_KEEP flag so that those symbols will not be stripped.
2913 Ignore relocations which will not appear in the output file. */
2916 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
2918 asymbol **symbols = (asymbol **) symbolsarg;
2923 /* Ignore an input section with no corresponding output section. */
2924 if (isection->output_section == NULL)
2927 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2930 /* Do not complain if the target does not support relocations. */
2931 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2933 bfd_fatal (bfd_get_filename (ibfd));
2939 relpp = (arelent **) xmalloc (relsize);
2940 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2942 bfd_fatal (bfd_get_filename (ibfd));
2944 /* Examine each symbol used in a relocation. If it's not one of the
2945 special bfd section symbols, then mark it with BSF_KEEP. */
2946 for (i = 0; i < relcount; i++)
2948 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2949 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2950 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2951 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
2958 /* Write out debugging information. */
2961 write_debugging_info (bfd *obfd, void *dhandle,
2962 long *symcountp ATTRIBUTE_UNUSED,
2963 asymbol ***symppp ATTRIBUTE_UNUSED)
2965 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2966 return write_ieee_debugging_info (obfd, dhandle);
2968 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2969 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2971 bfd_byte *syms, *strings;
2972 bfd_size_type symsize, stringsize;
2973 asection *stabsec, *stabstrsec;
2976 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2981 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2982 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2983 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
2985 || stabstrsec == NULL
2986 || ! bfd_set_section_size (obfd, stabsec, symsize)
2987 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2988 || ! bfd_set_section_alignment (obfd, stabsec, 2)
2989 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
2991 bfd_nonfatal_message (NULL, obfd, NULL,
2992 _("can't create debugging section"));
2996 /* We can get away with setting the section contents now because
2997 the next thing the caller is going to do is copy over the
2998 real sections. We may someday have to split the contents
2999 setting out of this function. */
3000 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
3001 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
3004 bfd_nonfatal_message (NULL, obfd, NULL,
3005 _("can't set debugging section contents"));
3012 bfd_nonfatal_message (NULL, obfd, NULL,
3013 _("don't know how to write debugging information for %s"),
3014 bfd_get_target (obfd));
3019 strip_main (int argc, char *argv[])
3021 char *input_target = NULL;
3022 char *output_target = NULL;
3023 bfd_boolean show_version = FALSE;
3024 bfd_boolean formats_info = FALSE;
3027 struct section_list *p;
3028 char *output_file = NULL;
3030 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
3031 strip_options, (int *) 0)) != EOF)
3036 input_target = optarg;
3039 output_target = optarg;
3042 input_target = output_target = optarg;
3045 p = find_section_list (optarg, TRUE);
3047 sections_removed = TRUE;
3050 strip_symbols = STRIP_ALL;
3054 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3055 strip_symbols = STRIP_DEBUG;
3057 case OPTION_STRIP_DWO:
3058 strip_symbols = STRIP_DWO;
3060 case OPTION_STRIP_UNNEEDED:
3061 strip_symbols = STRIP_UNNEEDED;
3064 add_specific_symbol (optarg, keep_specific_htab);
3067 add_specific_symbol (optarg, strip_specific_htab);
3070 output_file = optarg;
3073 preserve_dates = TRUE;
3076 deterministic = TRUE;
3079 discard_locals = LOCALS_ALL;
3082 discard_locals = LOCALS_START_L;
3088 show_version = TRUE;
3090 case OPTION_FORMATS_INFO:
3091 formats_info = TRUE;
3093 case OPTION_ONLY_KEEP_DEBUG:
3094 strip_symbols = STRIP_NONDEBUG;
3096 case OPTION_KEEP_FILE_SYMBOLS:
3097 keep_file_symbols = 1;
3100 /* We've been given a long option. */
3107 strip_usage (stdout, 0);
3109 strip_usage (stderr, 1);
3120 print_version ("strip");
3122 /* Default is to strip all symbols. */
3123 if (strip_symbols == STRIP_UNDEF
3124 && discard_locals == LOCALS_UNDEF
3125 && htab_elements (strip_specific_htab) == 0)
3126 strip_symbols = STRIP_ALL;
3128 if (output_target == NULL)
3129 output_target = input_target;
3133 || (output_file != NULL && (i + 1) < argc))
3134 strip_usage (stderr, 1);
3136 for (; i < argc; i++)
3138 int hold_status = status;
3139 struct stat statbuf;
3142 if (get_file_size (argv[i]) < 1)
3149 /* No need to check the return value of stat().
3150 It has already been checked in get_file_size(). */
3151 stat (argv[i], &statbuf);
3153 if (output_file == NULL
3154 || filename_cmp (argv[i], output_file) == 0)
3155 tmpname = make_tempname (argv[i]);
3157 tmpname = output_file;
3159 if (tmpname == NULL)
3161 bfd_nonfatal_message (argv[i], NULL, NULL,
3162 _("could not create temporary file to hold stripped copy"));
3168 copy_file (argv[i], tmpname, input_target, output_target, NULL);
3172 set_times (tmpname, &statbuf);
3173 if (output_file != tmpname)
3174 status = (smart_rename (tmpname,
3175 output_file ? output_file : argv[i],
3176 preserve_dates) != 0);
3178 status = hold_status;
3181 unlink_if_ordinary (tmpname);
3182 if (output_file != tmpname)
3189 /* Set up PE subsystem. */
3192 set_pe_subsystem (const char *s)
3194 const char *version, *subsystem;
3204 { "native", 0, IMAGE_SUBSYSTEM_NATIVE },
3205 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI },
3206 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI },
3207 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI },
3208 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI },
3209 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION },
3210 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER },
3211 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER },
3212 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER },
3213 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX }
3219 /* Check for the presence of a version number. */
3220 version = strchr (s, ':');
3221 if (version == NULL)
3225 int len = version - s;
3229 version = copy + 1 + len;
3230 pe_major_subsystem_version = strtoul (version, ©, 0);
3232 pe_minor_subsystem_version = strtoul (copy + 1, ©, 0);
3234 non_fatal (_("%s: bad version in PE subsystem"), s);
3237 /* Check for numeric subsystem. */
3238 value = (short) strtol (subsystem, ©, 0);
3241 for (i = 0; i < ARRAY_SIZE (v); i++)
3242 if (v[i].value == value)
3244 pe_subsystem = value;
3245 set_def = v[i].set_def;
3251 /* Search for subsystem by name. */
3252 for (i = 0; i < ARRAY_SIZE (v); i++)
3253 if (strcmp (subsystem, v[i].name) == 0)
3255 pe_subsystem = v[i].value;
3256 set_def = v[i].set_def;
3264 fatal (_("unknown PE subsystem: %s"), s);
3269 if (pe_file_alignment == (bfd_vma) -1)
3270 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
3271 if (pe_section_alignment == (bfd_vma) -1)
3272 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
3276 free ((char *) subsystem);
3279 /* Convert EFI target to PEI target. */
3282 convert_efi_target (char *efi)
3288 if (strcmp (efi + 4, "ia32") == 0)
3290 /* Change ia32 to i386. */
3295 else if (strcmp (efi + 4, "x86_64") == 0)
3297 /* Change x86_64 to x86-64. */
3303 copy_main (int argc, char *argv[])
3305 char *input_filename = NULL;
3306 char *output_filename = NULL;
3308 char *input_target = NULL;
3309 char *output_target = NULL;
3310 bfd_boolean show_version = FALSE;
3311 bfd_boolean change_warn = TRUE;
3312 bfd_boolean formats_info = FALSE;
3314 struct section_list *p;
3315 struct stat statbuf;
3316 const bfd_arch_info_type *input_arch = NULL;
3318 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
3319 copy_options, (int *) 0)) != EOF)
3324 copy_byte = atoi (optarg);
3326 fatal (_("byte number must be non-negative"));
3330 input_arch = bfd_scan_arch (optarg);
3331 if (input_arch == NULL)
3332 fatal (_("architecture %s unknown"), optarg);
3338 interleave = atoi (optarg);
3340 fatal (_("interleave must be positive"));
3346 case OPTION_INTERLEAVE_WIDTH:
3347 copy_width = atoi (optarg);
3349 fatal(_("interleave width must be positive"));
3353 case 's': /* "source" - 'I' is preferred */
3354 input_target = optarg;
3358 case 'd': /* "destination" - 'O' is preferred */
3359 output_target = optarg;
3363 input_target = output_target = optarg;
3367 p = find_section_list (optarg, TRUE);
3369 fatal (_("%s both copied and removed"), optarg);
3371 sections_copied = TRUE;
3375 p = find_section_list (optarg, TRUE);
3377 fatal (_("%s both copied and removed"), optarg);
3379 sections_removed = TRUE;
3383 strip_symbols = STRIP_ALL;
3387 strip_symbols = STRIP_DEBUG;
3390 case OPTION_STRIP_DWO:
3391 strip_symbols = STRIP_DWO;
3394 case OPTION_STRIP_UNNEEDED:
3395 strip_symbols = STRIP_UNNEEDED;
3398 case OPTION_ONLY_KEEP_DEBUG:
3399 strip_symbols = STRIP_NONDEBUG;
3402 case OPTION_KEEP_FILE_SYMBOLS:
3403 keep_file_symbols = 1;
3406 case OPTION_ADD_GNU_DEBUGLINK:
3407 gnu_debuglink_filename = optarg;
3411 add_specific_symbol (optarg, keep_specific_htab);
3415 add_specific_symbol (optarg, strip_specific_htab);
3418 case OPTION_STRIP_UNNEEDED_SYMBOL:
3419 add_specific_symbol (optarg, strip_unneeded_htab);
3423 add_specific_symbol (optarg, localize_specific_htab);
3426 case OPTION_GLOBALIZE_SYMBOL:
3427 add_specific_symbol (optarg, globalize_specific_htab);
3431 add_specific_symbol (optarg, keepglobal_specific_htab);
3435 add_specific_symbol (optarg, weaken_specific_htab);
3439 preserve_dates = TRUE;
3443 deterministic = TRUE;
3451 discard_locals = LOCALS_ALL;
3455 discard_locals = LOCALS_START_L;
3463 show_version = TRUE;
3466 case OPTION_FORMATS_INFO:
3467 formats_info = TRUE;
3474 case OPTION_ADD_SECTION:
3478 struct section_add *pa;
3481 s = strchr (optarg, '=');
3484 fatal (_("bad format for %s"), "--add-section");
3486 pa = (struct section_add *) xmalloc (sizeof (struct section_add));
3487 pa->name = xstrndup (optarg, s - optarg);
3488 pa->filename = s + 1;
3490 /* We don't use get_file_size so that we can do
3491 --add-section .note.GNU_stack=/dev/null
3492 get_file_size doesn't work on /dev/null. */
3494 f = fopen (pa->filename, FOPEN_RB);
3496 fatal (_("cannot open: %s: %s"),
3497 pa->filename, strerror (errno));
3501 pa->contents = (bfd_byte *) xmalloc (alloc);
3509 pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc);
3512 got = fread (pa->contents + off, 1, alloc - off, f);
3514 fatal (_("%s: fread failed"), pa->filename);
3523 pa->next = add_sections;
3528 case OPTION_CHANGE_START:
3529 change_start = parse_vma (optarg, "--change-start");
3532 case OPTION_CHANGE_SECTION_ADDRESS:
3533 case OPTION_CHANGE_SECTION_LMA:
3534 case OPTION_CHANGE_SECTION_VMA:
3539 char *option = NULL;
3541 enum change_action what = CHANGE_IGNORE;
3545 case OPTION_CHANGE_SECTION_ADDRESS:
3546 option = "--change-section-address";
3548 case OPTION_CHANGE_SECTION_LMA:
3549 option = "--change-section-lma";
3551 case OPTION_CHANGE_SECTION_VMA:
3552 option = "--change-section-vma";
3556 s = strchr (optarg, '=');
3559 s = strchr (optarg, '+');
3562 s = strchr (optarg, '-');
3564 fatal (_("bad format for %s"), option);
3569 name = (char *) xmalloc (len + 1);
3570 strncpy (name, optarg, len);
3573 p = find_section_list (name, TRUE);
3575 val = parse_vma (s + 1, option);
3579 case '=': what = CHANGE_SET; break;
3580 case '-': val = - val; /* Drop through. */
3581 case '+': what = CHANGE_MODIFY; break;
3586 case OPTION_CHANGE_SECTION_ADDRESS:
3587 p->change_vma = what;
3591 case OPTION_CHANGE_SECTION_LMA:
3592 p->change_lma = what;
3596 case OPTION_CHANGE_SECTION_VMA:
3597 p->change_vma = what;
3604 case OPTION_CHANGE_ADDRESSES:
3605 change_section_address = parse_vma (optarg, "--change-addresses");
3606 change_start = change_section_address;
3609 case OPTION_CHANGE_WARNINGS:
3613 case OPTION_CHANGE_LEADING_CHAR:
3614 change_leading_char = TRUE;
3617 case OPTION_COMPRESS_DEBUG_SECTIONS:
3618 do_debug_sections = compress;
3621 case OPTION_DEBUGGING:
3622 convert_debugging = TRUE;
3625 case OPTION_DECOMPRESS_DEBUG_SECTIONS:
3626 do_debug_sections = decompress;
3629 case OPTION_GAP_FILL:
3631 bfd_vma gap_fill_vma;
3633 gap_fill_vma = parse_vma (optarg, "--gap-fill");
3634 gap_fill = (bfd_byte) gap_fill_vma;
3635 if ((bfd_vma) gap_fill != gap_fill_vma)
3639 sprintf_vma (buff, gap_fill_vma);
3641 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3644 gap_fill_set = TRUE;
3648 case OPTION_NO_CHANGE_WARNINGS:
3649 change_warn = FALSE;
3653 pad_to = parse_vma (optarg, "--pad-to");
3657 case OPTION_REMOVE_LEADING_CHAR:
3658 remove_leading_char = TRUE;
3661 case OPTION_REDEFINE_SYM:
3663 /* Push this redefinition onto redefine_symbol_list. */
3667 const char *nextarg;
3668 char *source, *target;
3670 s = strchr (optarg, '=');
3672 fatal (_("bad format for %s"), "--redefine-sym");
3675 source = (char *) xmalloc (len + 1);
3676 strncpy (source, optarg, len);
3680 len = strlen (nextarg);
3681 target = (char *) xmalloc (len + 1);
3682 strcpy (target, nextarg);
3684 redefine_list_append ("--redefine-sym", source, target);
3691 case OPTION_REDEFINE_SYMS:
3692 add_redefine_syms_file (optarg);
3695 case OPTION_SET_SECTION_FLAGS:
3701 s = strchr (optarg, '=');
3703 fatal (_("bad format for %s"), "--set-section-flags");
3706 name = (char *) xmalloc (len + 1);
3707 strncpy (name, optarg, len);
3710 p = find_section_list (name, TRUE);
3712 p->set_flags = TRUE;
3713 p->flags = parse_flags (s + 1);
3717 case OPTION_RENAME_SECTION:
3720 const char *eq, *fl;
3725 eq = strchr (optarg, '=');
3727 fatal (_("bad format for %s"), "--rename-section");
3731 fatal (_("bad format for %s"), "--rename-section");
3733 old_name = (char *) xmalloc (len + 1);
3734 strncpy (old_name, optarg, len);
3738 fl = strchr (eq, ',');
3741 flags = parse_flags (fl + 1);
3751 fatal (_("bad format for %s"), "--rename-section");
3753 new_name = (char *) xmalloc (len + 1);
3754 strncpy (new_name, eq, len);
3757 add_section_rename (old_name, new_name, flags);
3761 case OPTION_SET_START:
3762 set_start = parse_vma (optarg, "--set-start");
3763 set_start_set = TRUE;
3766 case OPTION_SREC_LEN:
3767 Chunk = parse_vma (optarg, "--srec-len");
3770 case OPTION_SREC_FORCES3:
3774 case OPTION_STRIP_SYMBOLS:
3775 add_specific_symbols (optarg, strip_specific_htab);
3778 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3779 add_specific_symbols (optarg, strip_unneeded_htab);
3782 case OPTION_KEEP_SYMBOLS:
3783 add_specific_symbols (optarg, keep_specific_htab);
3786 case OPTION_LOCALIZE_HIDDEN:
3787 localize_hidden = TRUE;
3790 case OPTION_LOCALIZE_SYMBOLS:
3791 add_specific_symbols (optarg, localize_specific_htab);
3794 case OPTION_LONG_SECTION_NAMES:
3795 if (!strcmp ("enable", optarg))
3796 long_section_names = ENABLE;
3797 else if (!strcmp ("disable", optarg))
3798 long_section_names = DISABLE;
3799 else if (!strcmp ("keep", optarg))
3800 long_section_names = KEEP;
3802 fatal (_("unknown long section names option '%s'"), optarg);
3805 case OPTION_GLOBALIZE_SYMBOLS:
3806 add_specific_symbols (optarg, globalize_specific_htab);
3809 case OPTION_KEEPGLOBAL_SYMBOLS:
3810 add_specific_symbols (optarg, keepglobal_specific_htab);
3813 case OPTION_WEAKEN_SYMBOLS:
3814 add_specific_symbols (optarg, weaken_specific_htab);
3817 case OPTION_ALT_MACH_CODE:
3818 use_alt_mach_code = strtoul (optarg, NULL, 0);
3819 if (use_alt_mach_code == 0)
3820 fatal (_("unable to parse alternative machine code"));
3823 case OPTION_PREFIX_SYMBOLS:
3824 prefix_symbols_string = optarg;
3827 case OPTION_PREFIX_SECTIONS:
3828 prefix_sections_string = optarg;
3831 case OPTION_PREFIX_ALLOC_SECTIONS:
3832 prefix_alloc_sections_string = optarg;
3835 case OPTION_READONLY_TEXT:
3836 bfd_flags_to_set |= WP_TEXT;
3837 bfd_flags_to_clear &= ~WP_TEXT;
3840 case OPTION_WRITABLE_TEXT:
3841 bfd_flags_to_clear |= WP_TEXT;
3842 bfd_flags_to_set &= ~WP_TEXT;
3846 bfd_flags_to_set |= D_PAGED;
3847 bfd_flags_to_clear &= ~D_PAGED;
3851 bfd_flags_to_clear |= D_PAGED;
3852 bfd_flags_to_set &= ~D_PAGED;
3855 case OPTION_EXTRACT_DWO:
3856 strip_symbols = STRIP_NONDWO;
3859 case OPTION_EXTRACT_SYMBOL:
3860 extract_symbol = TRUE;
3863 case OPTION_REVERSE_BYTES:
3865 int prev = reverse_bytes;
3867 reverse_bytes = atoi (optarg);
3868 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
3869 fatal (_("number of bytes to reverse must be positive and even"));
3871 if (prev && prev != reverse_bytes)
3872 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
3877 case OPTION_FILE_ALIGNMENT:
3878 pe_file_alignment = parse_vma (optarg, "--file-alignment");
3884 pe_heap_reserve = strtoul (optarg, &end, 0);
3886 || (*end != '.' && *end != '\0'))
3887 non_fatal (_("%s: invalid reserve value for --heap"),
3889 else if (*end != '\0')
3891 pe_heap_commit = strtoul (end + 1, &end, 0);
3893 non_fatal (_("%s: invalid commit value for --heap"),
3899 case OPTION_IMAGE_BASE:
3900 pe_image_base = parse_vma (optarg, "--image-base");
3903 case OPTION_SECTION_ALIGNMENT:
3904 pe_section_alignment = parse_vma (optarg,
3905 "--section-alignment");
3908 case OPTION_SUBSYSTEM:
3909 set_pe_subsystem (optarg);
3915 pe_stack_reserve = strtoul (optarg, &end, 0);
3917 || (*end != '.' && *end != '\0'))
3918 non_fatal (_("%s: invalid reserve value for --stack"),
3920 else if (*end != '\0')
3922 pe_stack_commit = strtoul (end + 1, &end, 0);
3924 non_fatal (_("%s: invalid commit value for --stack"),
3931 /* We've been given a long option. */
3936 copy_usage (stdout, 0);
3939 copy_usage (stderr, 1);
3950 print_version ("objcopy");
3952 if (interleave && copy_byte == -1)
3953 fatal (_("interleave start byte must be set with --byte"));
3955 if (copy_byte >= interleave)
3956 fatal (_("byte number must be less than interleave"));
3958 if (copy_width > interleave - copy_byte)
3959 fatal (_("interleave width must be less than or equal to interleave - byte`"));
3961 if (optind == argc || optind + 2 < argc)
3962 copy_usage (stderr, 1);
3964 input_filename = argv[optind];
3965 if (optind + 1 < argc)
3966 output_filename = argv[optind + 1];
3968 /* Default is to strip no symbols. */
3969 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3970 strip_symbols = STRIP_NONE;
3972 if (output_target == NULL)
3973 output_target = input_target;
3975 /* Convert input EFI target to PEI target. */
3976 if (input_target != NULL
3977 && strncmp (input_target, "efi-", 4) == 0)
3981 efi = xstrdup (output_target + 4);
3982 if (strncmp (efi, "bsdrv-", 6) == 0
3983 || strncmp (efi, "rtdrv-", 6) == 0)
3985 else if (strncmp (efi, "app-", 4) != 0)
3986 fatal (_("unknown input EFI target: %s"), input_target);
3989 convert_efi_target (efi);
3992 /* Convert output EFI target to PEI target. */
3993 if (output_target != NULL
3994 && strncmp (output_target, "efi-", 4) == 0)
3998 efi = xstrdup (output_target + 4);
3999 if (strncmp (efi, "app-", 4) == 0)
4001 if (pe_subsystem == -1)
4002 pe_subsystem = IMAGE_SUBSYSTEM_EFI_APPLICATION;
4004 else if (strncmp (efi, "bsdrv-", 6) == 0)
4006 if (pe_subsystem == -1)
4007 pe_subsystem = IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER;
4010 else if (strncmp (efi, "rtdrv-", 6) == 0)
4012 if (pe_subsystem == -1)
4013 pe_subsystem = IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER;
4017 fatal (_("unknown output EFI target: %s"), output_target);
4019 if (pe_file_alignment == (bfd_vma) -1)
4020 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
4021 if (pe_section_alignment == (bfd_vma) -1)
4022 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
4024 output_target = efi;
4025 convert_efi_target (efi);
4029 if (stat (input_filename, & statbuf) < 0)
4030 fatal (_("warning: could not locate '%s'. System error message: %s"),
4031 input_filename, strerror (errno));
4033 /* If there is no destination file, or the source and destination files
4034 are the same, then create a temp and rename the result into the input. */
4035 if (output_filename == NULL
4036 || filename_cmp (input_filename, output_filename) == 0)
4037 tmpname = make_tempname (input_filename);
4039 tmpname = output_filename;
4041 if (tmpname == NULL)
4042 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4043 input_filename, strerror (errno));
4045 copy_file (input_filename, tmpname, input_target, output_target, input_arch);
4049 set_times (tmpname, &statbuf);
4050 if (tmpname != output_filename)
4051 status = (smart_rename (tmpname, input_filename,
4052 preserve_dates) != 0);
4055 unlink_if_ordinary (tmpname);
4059 for (p = change_sections; p != NULL; p = p->next)
4063 if (p->change_vma != CHANGE_IGNORE)
4067 sprintf_vma (buff, p->vma_val);
4069 /* xgettext:c-format */
4070 non_fatal (_("%s %s%c0x%s never used"),
4071 "--change-section-vma",
4073 p->change_vma == CHANGE_SET ? '=' : '+',
4077 if (p->change_lma != CHANGE_IGNORE)
4081 sprintf_vma (buff, p->lma_val);
4083 /* xgettext:c-format */
4084 non_fatal (_("%s %s%c0x%s never used"),
4085 "--change-section-lma",
4087 p->change_lma == CHANGE_SET ? '=' : '+',
4098 main (int argc, char *argv[])
4100 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4101 setlocale (LC_MESSAGES, "");
4103 #if defined (HAVE_SETLOCALE)
4104 setlocale (LC_CTYPE, "");
4106 bindtextdomain (PACKAGE, LOCALEDIR);
4107 textdomain (PACKAGE);
4109 program_name = argv[0];
4110 xmalloc_set_program_name (program_name);
4112 START_PROGRESS (program_name, 0);
4114 expandargv (&argc, &argv);
4116 strip_symbols = STRIP_UNDEF;
4117 discard_locals = LOCALS_UNDEF;
4120 set_default_bfd_target ();
4124 int i = strlen (program_name);
4125 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4126 /* Drop the .exe suffix, if any. */
4127 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
4130 program_name[i] = '\0';
4133 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
4136 create_symbol_htabs ();
4139 strip_main (argc, argv);
4141 copy_main (argc, argv);
4143 END_PROGRESS (program_name);