1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2014 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "libiberty.h"
28 #include "filenames.h"
32 #include "coff/internal.h"
35 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
36 header in generic PE code. */
37 #include "coff/i386.h"
40 static bfd_vma pe_file_alignment = (bfd_vma) -1;
41 static bfd_vma pe_heap_commit = (bfd_vma) -1;
42 static bfd_vma pe_heap_reserve = (bfd_vma) -1;
43 static bfd_vma pe_image_base = (bfd_vma) -1;
44 static bfd_vma pe_section_alignment = (bfd_vma) -1;
45 static bfd_vma pe_stack_commit = (bfd_vma) -1;
46 static bfd_vma pe_stack_reserve = (bfd_vma) -1;
47 static short pe_subsystem = -1;
48 static short pe_major_subsystem_version = -1;
49 static short pe_minor_subsystem_version = -1;
51 struct is_specified_symbol_predicate_data
57 /* A list to support redefine_sym. */
62 struct redefine_node *next;
65 typedef struct section_rename
67 const char * old_name;
68 const char * new_name;
70 struct section_rename * next;
74 /* List of sections to be renamed. */
75 static section_rename *section_rename_list;
77 static asymbol **isympp = NULL; /* Input symbols. */
78 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
80 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
81 static int copy_byte = -1;
82 static int interleave = 0; /* Initialised to 4 in copy_main(). */
83 static int copy_width = 1;
85 static bfd_boolean verbose; /* Print file and target names. */
86 static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
87 static int deterministic = -1; /* Enable deterministic archives. */
88 static int status = 0; /* Exit status. */
93 STRIP_NONE, /* Don't strip. */
94 STRIP_DEBUG, /* Strip all debugger symbols. */
95 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
96 STRIP_NONDEBUG, /* Strip everything but debug info. */
97 STRIP_DWO, /* Strip all DWO info. */
98 STRIP_NONDWO, /* Strip everything but DWO info. */
99 STRIP_ALL /* Strip all symbols. */
102 /* Which symbols to remove. */
103 static enum strip_action strip_symbols = STRIP_UNDEF;
108 LOCALS_START_L, /* Discard locals starting with L. */
109 LOCALS_ALL /* Discard all locals. */
112 /* Which local symbols to remove. Overrides STRIP_ALL. */
113 static enum locals_action discard_locals;
115 /* Structure used to hold lists of sections and actions to take. */
118 struct section_list * next; /* Next section to change. */
119 const char * pattern; /* Section name pattern. */
120 bfd_boolean used; /* Whether this entry was used. */
122 unsigned int context; /* What to do with matching sections. */
123 /* Flag bits used in the context field.
124 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
125 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
126 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
127 #define SECTION_CONTEXT_SET_VMA (1 << 2) /* Set the sections' VMA address. */
128 #define SECTION_CONTEXT_ALTER_VMA (1 << 3) /* Increment or decrement the section's VMA address. */
129 #define SECTION_CONTEXT_SET_LMA (1 << 4) /* Set the sections' LMA address. */
130 #define SECTION_CONTEXT_ALTER_LMA (1 << 5) /* Increment or decrement the section's LMA address. */
131 #define SECTION_CONTEXT_SET_FLAGS (1 << 6) /* Set the section's flags. */
133 bfd_vma vma_val; /* Amount to change by or set to. */
134 bfd_vma lma_val; /* Amount to change by or set to. */
135 flagword flags; /* What to set the section flags to. */
138 static struct section_list *change_sections;
140 /* TRUE if some sections are to be removed. */
141 static bfd_boolean sections_removed;
143 /* TRUE if only some sections are to be copied. */
144 static bfd_boolean sections_copied;
146 /* Changes to the start address. */
147 static bfd_vma change_start = 0;
148 static bfd_boolean set_start_set = FALSE;
149 static bfd_vma set_start;
151 /* Changes to section addresses. */
152 static bfd_vma change_section_address = 0;
154 /* Filling gaps between sections. */
155 static bfd_boolean gap_fill_set = FALSE;
156 static bfd_byte gap_fill = 0;
158 /* Pad to a given address. */
159 static bfd_boolean pad_to_set = FALSE;
160 static bfd_vma pad_to;
162 /* Use alternative machine code? */
163 static unsigned long use_alt_mach_code = 0;
165 /* Output BFD flags user wants to set or clear */
166 static flagword bfd_flags_to_set;
167 static flagword bfd_flags_to_clear;
169 /* List of sections to add. */
172 /* Next section to add. */
173 struct section_add *next;
174 /* Name of section to add. */
176 /* Name of file holding section contents. */
177 const char *filename;
180 /* Contents of file. */
182 /* BFD section, after it has been added. */
186 /* List of sections to add to the output BFD. */
187 static struct section_add *add_sections;
189 /* List of sections to dump from the output BFD. */
190 static struct section_add *dump_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,
266 OPTION_CHANGE_ADDRESSES,
267 OPTION_CHANGE_LEADING_CHAR,
269 OPTION_CHANGE_SECTION_ADDRESS,
270 OPTION_CHANGE_SECTION_LMA,
271 OPTION_CHANGE_SECTION_VMA,
272 OPTION_CHANGE_WARNINGS,
273 OPTION_COMPRESS_DEBUG_SECTIONS,
275 OPTION_DECOMPRESS_DEBUG_SECTIONS,
277 OPTION_NO_CHANGE_WARNINGS,
279 OPTION_REMOVE_LEADING_CHAR,
280 OPTION_SET_SECTION_FLAGS,
282 OPTION_STRIP_UNNEEDED,
285 OPTION_REDEFINE_SYMS,
288 OPTION_STRIP_SYMBOLS,
289 OPTION_STRIP_UNNEEDED_SYMBOL,
290 OPTION_STRIP_UNNEEDED_SYMBOLS,
292 OPTION_LOCALIZE_HIDDEN,
293 OPTION_LOCALIZE_SYMBOLS,
294 OPTION_LONG_SECTION_NAMES,
295 OPTION_GLOBALIZE_SYMBOL,
296 OPTION_GLOBALIZE_SYMBOLS,
297 OPTION_KEEPGLOBAL_SYMBOLS,
298 OPTION_WEAKEN_SYMBOLS,
299 OPTION_RENAME_SECTION,
300 OPTION_ALT_MACH_CODE,
301 OPTION_PREFIX_SYMBOLS,
302 OPTION_PREFIX_SECTIONS,
303 OPTION_PREFIX_ALLOC_SECTIONS,
305 OPTION_ADD_GNU_DEBUGLINK,
306 OPTION_ONLY_KEEP_DEBUG,
307 OPTION_KEEP_FILE_SYMBOLS,
308 OPTION_READONLY_TEXT,
309 OPTION_WRITABLE_TEXT,
312 OPTION_EXTRACT_SYMBOL,
313 OPTION_REVERSE_BYTES,
314 OPTION_FILE_ALIGNMENT,
317 OPTION_SECTION_ALIGNMENT,
319 OPTION_INTERLEAVE_WIDTH,
325 /* Options to handle if running as "strip". */
327 static struct option strip_options[] =
329 {"disable-deterministic-archives", no_argument, 0, 'U'},
330 {"discard-all", no_argument, 0, 'x'},
331 {"discard-locals", no_argument, 0, 'X'},
332 {"enable-deterministic-archives", no_argument, 0, 'D'},
333 {"format", required_argument, 0, 'F'}, /* Obsolete */
334 {"help", no_argument, 0, 'h'},
335 {"info", no_argument, 0, OPTION_FORMATS_INFO},
336 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
337 {"input-target", required_argument, 0, 'I'},
338 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
339 {"keep-symbol", required_argument, 0, 'K'},
340 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
341 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
342 {"output-target", required_argument, 0, 'O'},
343 {"output-file", required_argument, 0, 'o'},
344 {"preserve-dates", no_argument, 0, 'p'},
345 {"remove-section", required_argument, 0, 'R'},
346 {"strip-all", no_argument, 0, 's'},
347 {"strip-debug", no_argument, 0, 'S'},
348 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
349 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
350 {"strip-symbol", required_argument, 0, 'N'},
351 {"target", required_argument, 0, 'F'},
352 {"verbose", no_argument, 0, 'v'},
353 {"version", no_argument, 0, 'V'},
354 {"wildcard", no_argument, 0, 'w'},
355 {0, no_argument, 0, 0}
358 /* Options to handle if running as "objcopy". */
360 static struct option copy_options[] =
362 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
363 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
364 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
365 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
366 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
367 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
368 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
369 {"binary-architecture", required_argument, 0, 'B'},
370 {"byte", required_argument, 0, 'b'},
371 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
372 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
373 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
374 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
375 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
376 {"change-start", required_argument, 0, OPTION_CHANGE_START},
377 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
378 {"compress-debug-sections", no_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS},
379 {"debugging", no_argument, 0, OPTION_DEBUGGING},
380 {"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS},
381 {"disable-deterministic-archives", no_argument, 0, 'U'},
382 {"discard-all", no_argument, 0, 'x'},
383 {"discard-locals", no_argument, 0, 'X'},
384 {"dump-section", required_argument, 0, OPTION_DUMP_SECTION},
385 {"enable-deterministic-archives", no_argument, 0, 'D'},
386 {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO},
387 {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
388 {"format", required_argument, 0, 'F'}, /* Obsolete */
389 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
390 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
391 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
392 {"help", no_argument, 0, 'h'},
393 {"impure", no_argument, 0, OPTION_IMPURE},
394 {"info", no_argument, 0, OPTION_FORMATS_INFO},
395 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
396 {"input-target", required_argument, 0, 'I'},
397 {"interleave", optional_argument, 0, 'i'},
398 {"interleave-width", required_argument, 0, OPTION_INTERLEAVE_WIDTH},
399 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
400 {"keep-global-symbol", required_argument, 0, 'G'},
401 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
402 {"keep-symbol", required_argument, 0, 'K'},
403 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
404 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
405 {"localize-symbol", required_argument, 0, 'L'},
406 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
407 {"long-section-names", required_argument, 0, OPTION_LONG_SECTION_NAMES},
408 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
409 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
410 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
411 {"only-section", required_argument, 0, 'j'},
412 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
413 {"output-target", required_argument, 0, 'O'},
414 {"pad-to", required_argument, 0, OPTION_PAD_TO},
415 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
416 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
417 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
418 {"preserve-dates", no_argument, 0, 'p'},
419 {"pure", no_argument, 0, OPTION_PURE},
420 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
421 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
422 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
423 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
424 {"remove-section", required_argument, 0, 'R'},
425 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
426 {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
427 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
428 {"set-start", required_argument, 0, OPTION_SET_START},
429 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
430 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
431 {"strip-all", no_argument, 0, 'S'},
432 {"strip-debug", no_argument, 0, 'g'},
433 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
434 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
435 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
436 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
437 {"strip-symbol", required_argument, 0, 'N'},
438 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
439 {"target", required_argument, 0, 'F'},
440 {"verbose", no_argument, 0, 'v'},
441 {"version", no_argument, 0, 'V'},
442 {"weaken", no_argument, 0, OPTION_WEAKEN},
443 {"weaken-symbol", required_argument, 0, 'W'},
444 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
445 {"wildcard", no_argument, 0, 'w'},
446 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
447 {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT},
448 {"heap", required_argument, 0, OPTION_HEAP},
449 {"image-base", required_argument, 0 , OPTION_IMAGE_BASE},
450 {"section-alignment", required_argument, 0, OPTION_SECTION_ALIGNMENT},
451 {"stack", required_argument, 0, OPTION_STACK},
452 {"subsystem", required_argument, 0, OPTION_SUBSYSTEM},
453 {0, no_argument, 0, 0}
457 extern char *program_name;
459 /* This flag distinguishes between strip and objcopy:
460 1 means this is 'strip'; 0 means this is 'objcopy'.
461 -1 means if we should use argv[0] to decide. */
464 /* The maximum length of an S record. This variable is declared in srec.c
465 and can be modified by the --srec-len parameter. */
466 extern unsigned int Chunk;
468 /* Restrict the generation of Srecords to type S3 only.
469 This variable is declare in bfd/srec.c and can be toggled
470 on by the --srec-forceS3 command line switch. */
471 extern bfd_boolean S3Forced;
473 /* Forward declarations. */
474 static void setup_section (bfd *, asection *, void *);
475 static void setup_bfd_headers (bfd *, bfd *);
476 static void copy_relocations_in_section (bfd *, asection *, void *);
477 static void copy_section (bfd *, asection *, void *);
478 static void get_sections (bfd *, asection *, void *);
479 static int compare_section_lma (const void *, const void *);
480 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
481 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
482 static const char *lookup_sym_redefinition (const char *);
485 copy_usage (FILE *stream, int exit_status)
487 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
488 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
489 fprintf (stream, _(" The options are:\n"));
490 fprintf (stream, _("\
491 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
492 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
493 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
494 -F --target <bfdname> Set both input and output format to <bfdname>\n\
495 --debugging Convert debugging information, if possible\n\
496 -p --preserve-dates Copy modified/access timestamps to the output\n"));
497 if (DEFAULT_AR_DETERMINISTIC)
498 fprintf (stream, _("\
499 -D --enable-deterministic-archives\n\
500 Produce deterministic output when stripping archives (default)\n\
501 -U --disable-deterministic-archives\n\
502 Disable -D behavior\n"));
504 fprintf (stream, _("\
505 -D --enable-deterministic-archives\n\
506 Produce deterministic output when stripping archives\n\
507 -U --disable-deterministic-archives\n\
508 Disable -D behavior (default)\n"));
509 fprintf (stream, _("\
510 -j --only-section <name> Only copy section <name> into the output\n\
511 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
512 -R --remove-section <name> Remove section <name> from the output\n\
513 -S --strip-all Remove all symbol and relocation information\n\
514 -g --strip-debug Remove all debugging symbols & sections\n\
515 --strip-dwo Remove all DWO sections\n\
516 --strip-unneeded Remove all symbols not needed by relocations\n\
517 -N --strip-symbol <name> Do not copy symbol <name>\n\
518 --strip-unneeded-symbol <name>\n\
519 Do not copy symbol <name> unless needed by\n\
521 --only-keep-debug Strip everything but the debug information\n\
522 --extract-dwo Copy only DWO sections\n\
523 --extract-symbol Remove section contents but keep symbols\n\
524 -K --keep-symbol <name> Do not strip symbol <name>\n\
525 --keep-file-symbols Do not strip file symbol(s)\n\
526 --localize-hidden Turn all ELF hidden symbols into locals\n\
527 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
528 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
529 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
530 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
531 --weaken Force all global symbols to be marked as weak\n\
532 -w --wildcard Permit wildcard in symbol comparison\n\
533 -x --discard-all Remove all non-global symbols\n\
534 -X --discard-locals Remove any compiler-generated symbols\n\
535 -i --interleave [<number>] Only copy N out of every <number> bytes\n\
536 --interleave-width <number> Set N for --interleave\n\
537 -b --byte <num> Select byte <num> in every interleaved block\n\
538 --gap-fill <val> Fill gaps between sections with <val>\n\
539 --pad-to <addr> Pad the last section up to address <addr>\n\
540 --set-start <addr> Set the start address to <addr>\n\
541 {--change-start|--adjust-start} <incr>\n\
542 Add <incr> to the start address\n\
543 {--change-addresses|--adjust-vma} <incr>\n\
544 Add <incr> to LMA, VMA and start addresses\n\
545 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
546 Change LMA and VMA of section <name> by <val>\n\
547 --change-section-lma <name>{=|+|-}<val>\n\
548 Change the LMA of section <name> by <val>\n\
549 --change-section-vma <name>{=|+|-}<val>\n\
550 Change the VMA of section <name> by <val>\n\
551 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
552 Warn if a named section does not exist\n\
553 --set-section-flags <name>=<flags>\n\
554 Set section <name>'s properties to <flags>\n\
555 --add-section <name>=<file> Add section <name> found in <file> to output\n\
556 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
557 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
558 --long-section-names {enable|disable|keep}\n\
559 Handle long section names in Coff objects.\n\
560 --change-leading-char Force output format's leading character style\n\
561 --remove-leading-char Remove leading character from global symbols\n\
562 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
563 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
564 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
566 --srec-len <number> Restrict the length of generated Srecords\n\
567 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
568 --strip-symbols <file> -N for all symbols listed in <file>\n\
569 --strip-unneeded-symbols <file>\n\
570 --strip-unneeded-symbol for all symbols listed\n\
572 --keep-symbols <file> -K for all symbols listed in <file>\n\
573 --localize-symbols <file> -L for all symbols listed in <file>\n\
574 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
575 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
576 --weaken-symbols <file> -W for all symbols listed in <file>\n\
577 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
578 --writable-text Mark the output text as writable\n\
579 --readonly-text Make the output text write protected\n\
580 --pure Mark the output file as demand paged\n\
581 --impure Mark the output file as impure\n\
582 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
583 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
584 --prefix-alloc-sections <prefix>\n\
585 Add <prefix> to start of every allocatable\n\
587 --file-alignment <num> Set PE file alignment to <num>\n\
588 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
590 --image-base <address> Set PE image base to <address>\n\
591 --section-alignment <num> Set PE section alignment to <num>\n\
592 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
594 --subsystem <name>[:<version>]\n\
595 Set PE subsystem to <name> [& <version>]\n\
596 --compress-debug-sections Compress DWARF debug sections using zlib\n\
597 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
598 -v --verbose List all object files modified\n\
599 @<file> Read options from <file>\n\
600 -V --version Display this program's version number\n\
601 -h --help Display this output\n\
602 --info List object formats & architectures supported\n\
604 list_supported_targets (program_name, stream);
605 if (REPORT_BUGS_TO[0] && exit_status == 0)
606 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
611 strip_usage (FILE *stream, int exit_status)
613 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
614 fprintf (stream, _(" Removes symbols and sections from files\n"));
615 fprintf (stream, _(" The options are:\n"));
616 fprintf (stream, _("\
617 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
618 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
619 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
620 -p --preserve-dates Copy modified/access timestamps to the output\n\
622 if (DEFAULT_AR_DETERMINISTIC)
623 fprintf (stream, _("\
624 -D --enable-deterministic-archives\n\
625 Produce deterministic output when stripping archives (default)\n\
626 -U --disable-deterministic-archives\n\
627 Disable -D behavior\n"));
629 fprintf (stream, _("\
630 -D --enable-deterministic-archives\n\
631 Produce deterministic output when stripping archives\n\
632 -U --disable-deterministic-archives\n\
633 Disable -D behavior (default)\n"));
634 fprintf (stream, _("\
635 -R --remove-section=<name> Remove section <name> from the output\n\
636 -s --strip-all Remove all symbol and relocation information\n\
637 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
638 --strip-dwo Remove all DWO sections\n\
639 --strip-unneeded Remove all symbols not needed by relocations\n\
640 --only-keep-debug Strip everything but the debug information\n\
641 -N --strip-symbol=<name> Do not copy symbol <name>\n\
642 -K --keep-symbol=<name> Do not strip symbol <name>\n\
643 --keep-file-symbols Do not strip file symbol(s)\n\
644 -w --wildcard Permit wildcard in symbol comparison\n\
645 -x --discard-all Remove all non-global symbols\n\
646 -X --discard-locals Remove any compiler-generated symbols\n\
647 -v --verbose List all object files modified\n\
648 -V --version Display this program's version number\n\
649 -h --help Display this output\n\
650 --info List object formats & architectures supported\n\
651 -o <file> Place stripped output into <file>\n\
654 list_supported_targets (program_name, stream);
655 if (REPORT_BUGS_TO[0] && exit_status == 0)
656 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
660 /* Parse section flags into a flagword, with a fatal error if the
661 string can't be parsed. */
664 parse_flags (const char *s)
674 snext = strchr (s, ',');
684 #define PARSE_FLAG(fname,fval) \
685 else if (strncasecmp (fname, s, len) == 0) ret |= fval
686 PARSE_FLAG ("alloc", SEC_ALLOC);
687 PARSE_FLAG ("load", SEC_LOAD);
688 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
689 PARSE_FLAG ("readonly", SEC_READONLY);
690 PARSE_FLAG ("debug", SEC_DEBUGGING);
691 PARSE_FLAG ("code", SEC_CODE);
692 PARSE_FLAG ("data", SEC_DATA);
693 PARSE_FLAG ("rom", SEC_ROM);
694 PARSE_FLAG ("share", SEC_COFF_SHARED);
695 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
696 PARSE_FLAG ("merge", SEC_MERGE);
697 PARSE_FLAG ("strings", SEC_STRINGS);
703 copy = (char *) xmalloc (len + 1);
704 strncpy (copy, s, len);
706 non_fatal (_("unrecognized section flag `%s'"), copy);
707 fatal (_("supported flags: %s"),
708 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
718 /* Find and optionally add an entry in the change_sections list.
720 We need to be careful in how we match section names because of the support
721 for wildcard characters. For example suppose that the user has invoked
724 --set-section-flags .debug_*=debug
725 --set-section-flags .debug_str=readonly,debug
726 --change-section-address .debug_*ranges=0x1000
728 With the idea that all debug sections will receive the DEBUG flag, the
729 .debug_str section will also receive the READONLY flag and the
730 .debug_ranges and .debug_aranges sections will have their address set to
731 0x1000. (This may not make much sense, but it is just an example).
733 When adding the section name patterns to the section list we need to make
734 sure that previous entries do not match with the new entry, unless the
735 match is exact. (In which case we assume that the user is overriding
736 the previous entry with the new context).
738 When matching real section names to the section list we make use of the
739 wildcard characters, but we must do so in context. Eg if we are setting
740 section addresses then we match for .debug_ranges but not for .debug_info.
742 Finally, if ADD is false and we do find a match, we mark the section list
745 static struct section_list *
746 find_section_list (const char *name, bfd_boolean add, unsigned int context)
748 struct section_list *p;
750 /* assert ((context & ((1 << 7) - 1)) != 0); */
752 for (p = change_sections; p != NULL; p = p->next)
756 if (strcmp (p->pattern, name) == 0)
758 /* Check for context conflicts. */
759 if (((p->context & SECTION_CONTEXT_REMOVE)
760 && (context & SECTION_CONTEXT_COPY))
761 || ((context & SECTION_CONTEXT_REMOVE)
762 && (p->context & SECTION_CONTEXT_COPY)))
763 fatal (_("error: %s both copied and removed"), name);
765 if (((p->context & SECTION_CONTEXT_SET_VMA)
766 && (context & SECTION_CONTEXT_ALTER_VMA))
767 || ((context & SECTION_CONTEXT_SET_VMA)
768 && (context & SECTION_CONTEXT_ALTER_VMA)))
769 fatal (_("error: %s both sets and alters VMA"), name);
771 if (((p->context & SECTION_CONTEXT_SET_LMA)
772 && (context & SECTION_CONTEXT_ALTER_LMA))
773 || ((context & SECTION_CONTEXT_SET_LMA)
774 && (context & SECTION_CONTEXT_ALTER_LMA)))
775 fatal (_("error: %s both sets and alters LMA"), name);
777 /* Extend the context. */
778 p->context |= context;
782 /* If we are not adding a new name/pattern then
783 only check for a match if the context applies. */
784 else if ((p->context & context)
785 /* We could check for the presence of wildchar characters
786 first and choose between calling strcmp and fnmatch,
787 but is that really worth it ? */
788 && fnmatch (p->pattern, name, 0) == 0)
798 p = (struct section_list *) xmalloc (sizeof (struct section_list));
801 p->context = context;
805 p->next = change_sections;
811 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
814 eq_string (const void *s1, const void *s2)
816 return strcmp ((const char *) s1, (const char *) s2) == 0;
820 create_symbol_htab (void)
822 return htab_create_alloc (16, htab_hash_string, eq_string, NULL, xcalloc, free);
826 create_symbol_htabs (void)
828 strip_specific_htab = create_symbol_htab ();
829 strip_unneeded_htab = create_symbol_htab ();
830 keep_specific_htab = create_symbol_htab ();
831 localize_specific_htab = create_symbol_htab ();
832 globalize_specific_htab = create_symbol_htab ();
833 keepglobal_specific_htab = create_symbol_htab ();
834 weaken_specific_htab = create_symbol_htab ();
837 /* Add a symbol to strip_specific_list. */
840 add_specific_symbol (const char *name, htab_t htab)
842 *htab_find_slot (htab, name, INSERT) = (char *) name;
845 /* Add symbols listed in `filename' to strip_specific_list. */
847 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
848 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
851 add_specific_symbols (const char *filename, htab_t htab)
857 unsigned int line_count;
859 size = get_file_size (filename);
866 buffer = (char *) xmalloc (size + 2);
867 f = fopen (filename, FOPEN_RT);
869 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
871 if (fread (buffer, 1, size, f) == 0 || ferror (f))
872 fatal (_("%s: fread failed"), filename);
875 buffer [size] = '\n';
876 buffer [size + 1] = '\0';
880 for (line = buffer; * line != '\0'; line ++)
885 int finished = FALSE;
887 for (eol = line;; eol ++)
893 /* Cope with \n\r. */
901 /* Cope with \r\n. */
912 /* Line comment, Terminate the line here, in case a
913 name is present and then allow the rest of the
914 loop to find the real end of the line. */
926 /* A name may now exist somewhere between 'line' and 'eol'.
927 Strip off leading whitespace and trailing whitespace,
928 then add it to the list. */
929 for (name = line; IS_WHITESPACE (* name); name ++)
931 for (name_end = name;
932 (! IS_WHITESPACE (* name_end))
933 && (! IS_LINE_TERMINATOR (* name_end));
937 if (! IS_LINE_TERMINATOR (* name_end))
941 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
944 if (! IS_LINE_TERMINATOR (* extra))
945 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
946 filename, line_count);
952 add_specific_symbol (name, htab);
954 /* Advance line pointer to end of line. The 'eol ++' in the for
955 loop above will then advance us to the start of the next line. */
961 /* See whether a symbol should be stripped or kept
962 based on strip_specific_list and keep_symbols. */
965 is_specified_symbol_predicate (void **slot, void *data)
967 struct is_specified_symbol_predicate_data *d =
968 (struct is_specified_symbol_predicate_data *) data;
969 const char *slot_name = (char *) *slot;
971 if (*slot_name != '!')
973 if (! fnmatch (slot_name, d->name, 0))
976 /* Stop traversal. */
982 if (fnmatch (slot_name + 1, d->name, 0))
985 /* Stop traversal. */
990 /* Continue traversal. */
995 is_specified_symbol (const char *name, htab_t htab)
999 struct is_specified_symbol_predicate_data data;
1004 htab_traverse (htab, is_specified_symbol_predicate, &data);
1009 return htab_find (htab, name) != NULL;
1012 /* Return a pointer to the symbol used as a signature for GROUP. */
1015 group_signature (asection *group)
1017 bfd *abfd = group->owner;
1018 Elf_Internal_Shdr *ghdr;
1020 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
1023 ghdr = &elf_section_data (group)->this_hdr;
1024 if (ghdr->sh_link < elf_numsections (abfd))
1026 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1027 Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
1029 if (symhdr->sh_type == SHT_SYMTAB
1030 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
1031 return isympp[ghdr->sh_info - 1];
1036 /* Return TRUE if the section is a DWO section. */
1039 is_dwo_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1041 const char *name = bfd_get_section_name (abfd, sec);
1042 int len = strlen (name);
1044 return strncmp (name + len - 4, ".dwo", 4) == 0;
1047 /* See if a non-group section is being removed. */
1050 is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1052 if (sections_removed || sections_copied)
1054 struct section_list *p;
1055 struct section_list *q;
1057 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE,
1058 SECTION_CONTEXT_REMOVE);
1059 q = find_section_list (bfd_get_section_name (abfd, sec), FALSE,
1060 SECTION_CONTEXT_COPY);
1063 fatal (_("error: section %s matches both remove and copy options"),
1064 bfd_get_section_name (abfd, sec));
1068 if (sections_copied && q == NULL)
1072 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
1074 if (strip_symbols == STRIP_DEBUG
1075 || strip_symbols == STRIP_UNNEEDED
1076 || strip_symbols == STRIP_ALL
1077 || discard_locals == LOCALS_ALL
1078 || convert_debugging)
1080 /* By default we don't want to strip .reloc section.
1081 This section has for pe-coff special meaning. See
1082 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1083 if (strcmp (bfd_get_section_name (abfd, sec), ".reloc") != 0)
1087 if (strip_symbols == STRIP_DWO)
1088 return is_dwo_section (abfd, sec);
1090 if (strip_symbols == STRIP_NONDEBUG)
1094 if (strip_symbols == STRIP_NONDWO)
1095 return !is_dwo_section (abfd, sec);
1100 /* See if a section is being removed. */
1103 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1105 if (is_strip_section_1 (abfd, sec))
1108 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
1112 asection *elt, *first;
1115 If we are going to strip the group signature symbol, then
1116 strip the group section too. */
1117 gsym = group_signature (sec);
1122 if ((strip_symbols == STRIP_ALL
1123 && !is_specified_symbol (gname, keep_specific_htab))
1124 || is_specified_symbol (gname, strip_specific_htab))
1127 /* Remove the group section if all members are removed. */
1128 first = elt = elf_next_in_group (sec);
1131 if (!is_strip_section_1 (abfd, elt))
1133 elt = elf_next_in_group (elt);
1144 /* Return true if SYM is a hidden symbol. */
1147 is_hidden_symbol (asymbol *sym)
1149 elf_symbol_type *elf_sym;
1151 elf_sym = elf_symbol_from (sym->the_bfd, sym);
1152 if (elf_sym != NULL)
1153 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
1162 /* Choose which symbol entries to copy; put the result in OSYMS.
1163 We don't copy in place, because that confuses the relocs.
1164 Return the number of symbols to print. */
1167 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
1168 asymbol **isyms, long symcount)
1170 asymbol **from = isyms, **to = osyms;
1171 long src_count = 0, dst_count = 0;
1172 int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
1174 for (; src_count < symcount; src_count++)
1176 asymbol *sym = from[src_count];
1177 flagword flags = sym->flags;
1178 char *name = (char *) bfd_asymbol_name (sym);
1180 bfd_boolean used_in_reloc = FALSE;
1181 bfd_boolean undefined;
1182 bfd_boolean rem_leading_char;
1183 bfd_boolean add_leading_char;
1185 undefined = bfd_is_und_section (bfd_get_section (sym));
1187 if (redefine_sym_list)
1189 char *old_name, *new_name;
1191 old_name = (char *) bfd_asymbol_name (sym);
1192 new_name = (char *) lookup_sym_redefinition (old_name);
1193 bfd_asymbol_name (sym) = new_name;
1197 /* Check if we will remove the current leading character. */
1199 (name[0] == bfd_get_symbol_leading_char (abfd))
1200 && (change_leading_char
1201 || (remove_leading_char
1202 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1204 || bfd_is_com_section (bfd_get_section (sym)))));
1206 /* Check if we will add a new leading character. */
1209 && (bfd_get_symbol_leading_char (obfd) != '\0')
1210 && (bfd_get_symbol_leading_char (abfd) == '\0'
1211 || (name[0] == bfd_get_symbol_leading_char (abfd)));
1213 /* Short circuit for change_leading_char if we can do it in-place. */
1214 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
1216 name[0] = bfd_get_symbol_leading_char (obfd);
1217 bfd_asymbol_name (sym) = name;
1218 rem_leading_char = FALSE;
1219 add_leading_char = FALSE;
1222 /* Remove leading char. */
1223 if (rem_leading_char)
1224 bfd_asymbol_name (sym) = ++name;
1226 /* Add new leading char and/or prefix. */
1227 if (add_leading_char || prefix_symbols_string)
1231 ptr = n = (char *) xmalloc (1 + strlen (prefix_symbols_string)
1232 + strlen (name) + 1);
1233 if (add_leading_char)
1234 *ptr++ = bfd_get_symbol_leading_char (obfd);
1236 if (prefix_symbols_string)
1238 strcpy (ptr, prefix_symbols_string);
1239 ptr += strlen (prefix_symbols_string);
1243 bfd_asymbol_name (sym) = n;
1247 if (strip_symbols == STRIP_ALL)
1249 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
1250 || ((flags & BSF_SECTION_SYM) != 0
1251 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
1255 used_in_reloc = TRUE;
1257 else if (relocatable /* Relocatable file. */
1258 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1259 || bfd_is_com_section (bfd_get_section (sym))))
1261 else if (bfd_decode_symclass (sym) == 'I')
1262 /* Global symbols in $idata sections need to be retained
1263 even if relocatable is FALSE. External users of the
1264 library containing the $idata section may reference these
1267 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1268 || (flags & BSF_WEAK) != 0
1270 || bfd_is_com_section (bfd_get_section (sym)))
1271 keep = strip_symbols != STRIP_UNNEEDED;
1272 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1273 keep = (strip_symbols != STRIP_DEBUG
1274 && strip_symbols != STRIP_UNNEEDED
1275 && ! convert_debugging);
1276 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
1277 /* COMDAT sections store special information in local
1278 symbols, so we cannot risk stripping any of them. */
1280 else /* Local symbol. */
1281 keep = (strip_symbols != STRIP_UNNEEDED
1282 && (discard_locals != LOCALS_ALL
1283 && (discard_locals != LOCALS_START_L
1284 || ! bfd_is_local_label (abfd, sym))));
1286 if (keep && is_specified_symbol (name, strip_specific_htab))
1288 /* There are multiple ways to set 'keep' above, but if it
1289 was the relocatable symbol case, then that's an error. */
1292 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1300 && !(flags & BSF_KEEP)
1301 && is_specified_symbol (name, strip_unneeded_htab))
1305 && ((keep_file_symbols && (flags & BSF_FILE))
1306 || is_specified_symbol (name, keep_specific_htab)))
1309 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
1314 if ((flags & BSF_GLOBAL) != 0
1315 && (weaken || is_specified_symbol (name, weaken_specific_htab)))
1317 sym->flags &= ~ BSF_GLOBAL;
1318 sym->flags |= BSF_WEAK;
1322 && (flags & (BSF_GLOBAL | BSF_WEAK))
1323 && (is_specified_symbol (name, localize_specific_htab)
1324 || (htab_elements (keepglobal_specific_htab) != 0
1325 && ! is_specified_symbol (name, keepglobal_specific_htab))
1326 || (localize_hidden && is_hidden_symbol (sym))))
1328 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1329 sym->flags |= BSF_LOCAL;
1333 && (flags & BSF_LOCAL)
1334 && is_specified_symbol (name, globalize_specific_htab))
1336 sym->flags &= ~ BSF_LOCAL;
1337 sym->flags |= BSF_GLOBAL;
1340 to[dst_count++] = sym;
1344 to[dst_count] = NULL;
1349 /* Find the redefined name of symbol SOURCE. */
1352 lookup_sym_redefinition (const char *source)
1354 struct redefine_node *list;
1356 for (list = redefine_sym_list; list != NULL; list = list->next)
1357 if (strcmp (source, list->source) == 0)
1358 return list->target;
1363 /* Add a node to a symbol redefine list. */
1366 redefine_list_append (const char *cause, const char *source, const char *target)
1368 struct redefine_node **p;
1369 struct redefine_node *list;
1370 struct redefine_node *new_node;
1372 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1374 if (strcmp (source, list->source) == 0)
1375 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1378 if (strcmp (target, list->target) == 0)
1379 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1383 new_node = (struct redefine_node *) xmalloc (sizeof (struct redefine_node));
1385 new_node->source = strdup (source);
1386 new_node->target = strdup (target);
1387 new_node->next = NULL;
1392 /* Handle the --redefine-syms option. Read lines containing "old new"
1393 from the file, and add them to the symbol redefine list. */
1396 add_redefine_syms_file (const char *filename)
1405 file = fopen (filename, "r");
1407 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1408 filename, strerror (errno));
1411 buf = (char *) xmalloc (bufsize + 1 /* For the terminating NUL. */);
1419 /* Collect the input symbol name. */
1420 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1428 buf = (char *) xrealloc (buf, bufsize + 1);
1436 /* Eat white space between the symbol names. */
1437 while (IS_WHITESPACE (c))
1439 if (c == '#' || IS_LINE_TERMINATOR (c))
1444 /* Collect the output symbol name. */
1446 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1454 buf = (char *) xrealloc (buf, bufsize + 1);
1462 /* Eat white space at end of line. */
1463 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1468 if ((c == '\r' && (c = getc (file)) == '\n')
1469 || c == '\n' || c == EOF)
1472 /* Append the redefinition to the list. */
1474 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1485 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1487 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1488 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1491 /* Eat the rest of the line and finish it. */
1492 while (c != '\n' && c != EOF)
1498 fatal (_("%s:%d: premature end of file"), filename, lineno);
1503 /* Copy unkown object file IBFD onto OBFD.
1504 Returns TRUE upon success, FALSE otherwise. */
1507 copy_unknown_object (bfd *ibfd, bfd *obfd)
1515 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1517 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1524 non_fatal (_("stat returns negative size for `%s'"),
1525 bfd_get_archive_filename (ibfd));
1529 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1531 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1536 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1537 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1539 cbuf = (char *) xmalloc (BUFSIZE);
1541 while (ncopied < size)
1543 tocopy = size - ncopied;
1544 if (tocopy > BUFSIZE)
1547 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1548 != (bfd_size_type) tocopy)
1550 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1555 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1556 != (bfd_size_type) tocopy)
1558 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1566 /* We should at least to be able to read it back when copying an
1567 unknown object in an archive. */
1568 chmod (bfd_get_filename (obfd), buf.st_mode | S_IRUSR);
1573 /* Copy object file IBFD onto OBFD.
1574 Returns TRUE upon success, FALSE otherwise. */
1577 copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
1581 asection **osections = NULL;
1582 asection *gnu_debuglink_section = NULL;
1583 bfd_size_type *gaps = NULL;
1584 bfd_size_type max_gap = 0;
1587 enum bfd_architecture iarch;
1590 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1591 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1592 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1593 fatal (_("Unable to change endianness of input file(s)"));
1595 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1597 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1602 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1603 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1604 bfd_get_filename (obfd), bfd_get_target (obfd));
1613 start = bfd_get_start_address (ibfd);
1614 start += change_start;
1617 /* Neither the start address nor the flags
1618 need to be set for a core file. */
1619 if (bfd_get_format (obfd) != bfd_core)
1623 flags = bfd_get_file_flags (ibfd);
1624 flags |= bfd_flags_to_set;
1625 flags &= ~bfd_flags_to_clear;
1626 flags &= bfd_applicable_file_flags (obfd);
1628 if (strip_symbols == STRIP_ALL)
1629 flags &= ~HAS_RELOC;
1631 if (!bfd_set_start_address (obfd, start)
1632 || !bfd_set_file_flags (obfd, flags))
1634 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1639 /* Copy architecture of input file to output file. */
1640 iarch = bfd_get_arch (ibfd);
1641 imach = bfd_get_mach (ibfd);
1644 if (bfd_get_arch_info (ibfd) == NULL
1645 || bfd_get_arch_info (ibfd)->arch == bfd_arch_unknown)
1647 iarch = input_arch->arch;
1648 imach = input_arch->mach;
1651 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1652 bfd_get_archive_filename (ibfd));
1654 if (!bfd_set_arch_mach (obfd, iarch, imach)
1655 && (ibfd->target_defaulted
1656 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1658 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1659 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1660 bfd_get_archive_filename (ibfd));
1662 non_fatal (_("Output file cannot represent architecture `%s'"),
1663 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1664 bfd_get_mach (ibfd)));
1668 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1670 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1674 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
1675 && bfd_pei_p (obfd))
1677 /* Set up PE parameters. */
1678 pe_data_type *pe = pe_data (obfd);
1680 /* Copy PE parameters before changing them. */
1681 if (ibfd->xvec->flavour == bfd_target_coff_flavour
1682 && bfd_pei_p (ibfd))
1683 pe->pe_opthdr = pe_data (ibfd)->pe_opthdr;
1685 if (pe_file_alignment != (bfd_vma) -1)
1686 pe->pe_opthdr.FileAlignment = pe_file_alignment;
1688 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
1690 if (pe_heap_commit != (bfd_vma) -1)
1691 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_commit;
1693 if (pe_heap_reserve != (bfd_vma) -1)
1694 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_reserve;
1696 if (pe_image_base != (bfd_vma) -1)
1697 pe->pe_opthdr.ImageBase = pe_image_base;
1699 if (pe_section_alignment != (bfd_vma) -1)
1700 pe->pe_opthdr.SectionAlignment = pe_section_alignment;
1702 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
1704 if (pe_stack_commit != (bfd_vma) -1)
1705 pe->pe_opthdr.SizeOfStackCommit = pe_stack_commit;
1707 if (pe_stack_reserve != (bfd_vma) -1)
1708 pe->pe_opthdr.SizeOfStackCommit = pe_stack_reserve;
1710 if (pe_subsystem != -1)
1711 pe->pe_opthdr.Subsystem = pe_subsystem;
1713 if (pe_major_subsystem_version != -1)
1714 pe->pe_opthdr.MajorSubsystemVersion = pe_major_subsystem_version;
1716 if (pe_minor_subsystem_version != -1)
1717 pe->pe_opthdr.MinorSubsystemVersion = pe_minor_subsystem_version;
1719 if (pe_file_alignment > pe_section_alignment)
1721 char file_alignment[20], section_alignment[20];
1723 sprintf_vma (file_alignment, pe_file_alignment);
1724 sprintf_vma (section_alignment, pe_section_alignment);
1725 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1727 file_alignment, section_alignment);
1734 if (osympp != isympp)
1740 symsize = bfd_get_symtab_upper_bound (ibfd);
1743 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1747 osympp = isympp = (asymbol **) xmalloc (symsize);
1748 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1751 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1755 /* BFD mandates that all output sections be created and sizes set before
1756 any output is done. Thus, we traverse all sections multiple times. */
1757 bfd_map_over_sections (ibfd, setup_section, obfd);
1759 if (!extract_symbol)
1760 setup_bfd_headers (ibfd, obfd);
1762 if (add_sections != NULL)
1764 struct section_add *padd;
1765 struct section_list *pset;
1767 for (padd = add_sections; padd != NULL; padd = padd->next)
1771 pset = find_section_list (padd->name, FALSE,
1772 SECTION_CONTEXT_SET_FLAGS);
1774 flags = pset->flags | SEC_HAS_CONTENTS;
1776 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1778 /* bfd_make_section_with_flags() does not return very helpful
1779 error codes, so check for the most likely user error first. */
1780 if (bfd_get_section_by_name (obfd, padd->name))
1782 bfd_nonfatal_message (NULL, obfd, NULL,
1783 _("can't add section '%s'"), padd->name);
1788 /* We use LINKER_CREATED here so that the backend hooks
1789 will create any special section type information,
1790 instead of presuming we know what we're doing merely
1791 because we set the flags. */
1792 padd->section = bfd_make_section_with_flags
1793 (obfd, padd->name, flags | SEC_LINKER_CREATED);
1794 if (padd->section == NULL)
1796 bfd_nonfatal_message (NULL, obfd, NULL,
1797 _("can't create section `%s'"),
1803 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1805 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1809 pset = find_section_list (padd->name, FALSE,
1810 SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA);
1812 && ! bfd_set_section_vma (obfd, padd->section, pset->vma_val))
1814 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1818 pset = find_section_list (padd->name, FALSE,
1819 SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA);
1822 padd->section->lma = pset->lma_val;
1824 if (! bfd_set_section_alignment
1825 (obfd, padd->section,
1826 bfd_section_alignment (obfd, padd->section)))
1828 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
1835 if (dump_sections != NULL)
1837 struct section_add * pdump;
1839 for (pdump = dump_sections; pdump != NULL; pdump = pdump->next)
1843 sec = bfd_get_section_by_name (ibfd, pdump->name);
1846 bfd_nonfatal_message (NULL, ibfd, NULL,
1847 _("can't dump section '%s' - it does not exist"),
1852 if ((bfd_get_section_flags (ibfd, sec) & SEC_HAS_CONTENTS) == 0)
1854 bfd_nonfatal_message (NULL, ibfd, sec,
1855 _("can't dump section - it has no contents"));
1859 bfd_size_type size = bfd_get_section_size (sec);
1862 bfd_nonfatal_message (NULL, ibfd, sec,
1863 _("can't dump section - it is empty"));
1868 f = fopen (pdump->filename, FOPEN_WB);
1871 bfd_nonfatal_message (pdump->filename, NULL, NULL,
1872 _("could not open section dump file"));
1876 bfd_byte * contents = xmalloc (size);
1877 if (bfd_get_section_contents (ibfd, sec, contents, 0, size))
1878 fwrite (contents, 1, size, f);
1880 bfd_nonfatal_message (NULL, ibfd, sec,
1881 _("could not retrieve section contents"));
1888 if (gnu_debuglink_filename != NULL)
1890 /* PR 15125: Give a helpful warning message if
1891 the debuglink section already exists, and
1892 allow the rest of the copy to complete. */
1893 if (bfd_get_section_by_name (obfd, ".gnu_debuglink"))
1895 non_fatal (_("%s: debuglink section already exists"),
1896 bfd_get_filename (obfd));
1897 gnu_debuglink_filename = NULL;
1901 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1902 (obfd, gnu_debuglink_filename);
1904 if (gnu_debuglink_section == NULL)
1906 bfd_nonfatal_message (NULL, obfd, NULL,
1907 _("cannot create debug link section `%s'"),
1908 gnu_debuglink_filename);
1912 /* Special processing for PE format files. We
1913 have no way to distinguish PE from COFF here. */
1914 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1916 bfd_vma debuglink_vma;
1917 asection * highest_section;
1920 /* The PE spec requires that all sections be adjacent and sorted
1921 in ascending order of VMA. It also specifies that debug
1922 sections should be last. This is despite the fact that debug
1923 sections are not loaded into memory and so in theory have no
1926 This means that the debuglink section must be given a non-zero
1927 VMA which makes it contiguous with other debug sections. So
1928 walk the current section list, find the section with the
1929 highest VMA and start the debuglink section after that one. */
1930 for (sec = obfd->sections, highest_section = NULL;
1934 && (highest_section == NULL
1935 || sec->vma > highest_section->vma))
1936 highest_section = sec;
1938 if (highest_section)
1939 debuglink_vma = BFD_ALIGN (highest_section->vma
1940 + highest_section->size,
1941 /* FIXME: We ought to be using
1942 COFF_PAGE_SIZE here or maybe
1943 bfd_get_section_alignment() (if it
1944 was set) but since this is for PE
1945 and we know the required alignment
1946 it is easier just to hard code it. */
1949 /* Umm, not sure what to do in this case. */
1950 debuglink_vma = 0x1000;
1952 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1957 if (bfd_count_sections (obfd) != 0
1958 && (gap_fill_set || pad_to_set))
1963 /* We must fill in gaps between the sections and/or we must pad
1964 the last section to a specified address. We do this by
1965 grabbing a list of the sections, sorting them by VMA, and
1966 increasing the section sizes as required to fill the gaps.
1967 We write out the gap contents below. */
1969 c = bfd_count_sections (obfd);
1970 osections = (asection **) xmalloc (c * sizeof (asection *));
1972 bfd_map_over_sections (obfd, get_sections, &set);
1974 qsort (osections, c, sizeof (asection *), compare_section_lma);
1976 gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type));
1977 memset (gaps, 0, c * sizeof (bfd_size_type));
1981 for (i = 0; i < c - 1; i++)
1985 bfd_vma gap_start, gap_stop;
1987 flags = bfd_get_section_flags (obfd, osections[i]);
1988 if ((flags & SEC_HAS_CONTENTS) == 0
1989 || (flags & SEC_LOAD) == 0)
1992 size = bfd_section_size (obfd, osections[i]);
1993 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1994 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1995 if (gap_start < gap_stop)
1997 if (! bfd_set_section_size (obfd, osections[i],
1998 size + (gap_stop - gap_start)))
2000 bfd_nonfatal_message (NULL, obfd, osections[i],
2001 _("Can't fill gap after section"));
2005 gaps[i] = gap_stop - gap_start;
2006 if (max_gap < gap_stop - gap_start)
2007 max_gap = gap_stop - gap_start;
2017 lma = bfd_section_lma (obfd, osections[c - 1]);
2018 size = bfd_section_size (obfd, osections[c - 1]);
2019 if (lma + size < pad_to)
2021 if (! bfd_set_section_size (obfd, osections[c - 1],
2024 bfd_nonfatal_message (NULL, obfd, osections[c - 1],
2025 _("can't add padding"));
2030 gaps[c - 1] = pad_to - (lma + size);
2031 if (max_gap < pad_to - (lma + size))
2032 max_gap = pad_to - (lma + size);
2038 /* Symbol filtering must happen after the output sections
2039 have been created, but before their contents are set. */
2041 if (convert_debugging)
2042 dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE);
2044 if (strip_symbols == STRIP_DEBUG
2045 || strip_symbols == STRIP_ALL
2046 || strip_symbols == STRIP_UNNEEDED
2047 || strip_symbols == STRIP_NONDEBUG
2048 || strip_symbols == STRIP_DWO
2049 || strip_symbols == STRIP_NONDWO
2050 || discard_locals != LOCALS_UNDEF
2052 || htab_elements (strip_specific_htab) != 0
2053 || htab_elements (keep_specific_htab) != 0
2054 || htab_elements (localize_specific_htab) != 0
2055 || htab_elements (globalize_specific_htab) != 0
2056 || htab_elements (keepglobal_specific_htab) != 0
2057 || htab_elements (weaken_specific_htab) != 0
2058 || prefix_symbols_string
2061 || convert_debugging
2062 || change_leading_char
2063 || remove_leading_char
2064 || redefine_sym_list
2067 /* Mark symbols used in output relocations so that they
2068 are kept, even if they are local labels or static symbols.
2070 Note we iterate over the input sections examining their
2071 relocations since the relocations for the output sections
2072 haven't been set yet. mark_symbols_used_in_relocations will
2073 ignore input sections which have no corresponding output
2075 if (strip_symbols != STRIP_ALL)
2076 bfd_map_over_sections (ibfd,
2077 mark_symbols_used_in_relocations,
2079 osympp = (asymbol **) xmalloc ((symcount + 1) * sizeof (asymbol *));
2080 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
2083 if (convert_debugging && dhandle != NULL)
2085 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
2092 bfd_set_symtab (obfd, osympp, symcount);
2094 /* This has to happen before section positions are set. */
2095 bfd_map_over_sections (ibfd, copy_relocations_in_section, obfd);
2097 /* This has to happen after the symbol table has been set. */
2098 bfd_map_over_sections (ibfd, copy_section, obfd);
2100 if (add_sections != NULL)
2102 struct section_add *padd;
2104 for (padd = add_sections; padd != NULL; padd = padd->next)
2106 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
2109 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2115 if (gnu_debuglink_filename != NULL)
2117 if (! bfd_fill_in_gnu_debuglink_section
2118 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
2120 bfd_nonfatal_message (NULL, obfd, NULL,
2121 _("cannot fill debug link section `%s'"),
2122 gnu_debuglink_filename);
2127 if (gap_fill_set || pad_to_set)
2132 /* Fill in the gaps. */
2135 buf = (bfd_byte *) xmalloc (max_gap);
2136 memset (buf, gap_fill, max_gap);
2138 c = bfd_count_sections (obfd);
2139 for (i = 0; i < c; i++)
2147 off = bfd_section_size (obfd, osections[i]) - left;
2158 if (! bfd_set_section_contents (obfd, osections[i], buf,
2161 bfd_nonfatal_message (NULL, obfd, osections[i], NULL);
2172 /* Do not copy backend data if --extract-symbol is passed; anything
2173 that needs to look at the section contents will fail. */
2177 /* Allow the BFD backend to copy any private data it understands
2178 from the input BFD to the output BFD. This is done last to
2179 permit the routine to look at the filtered symbol table, which is
2180 important for the ECOFF code at least. */
2181 if (! bfd_copy_private_bfd_data (ibfd, obfd))
2183 bfd_nonfatal_message (NULL, obfd, NULL,
2184 _("error copying private BFD data"));
2188 /* Switch to the alternate machine code. We have to do this at the
2189 very end, because we only initialize the header when we create
2190 the first section. */
2191 if (use_alt_mach_code != 0)
2193 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
2195 non_fatal (_("this target does not support %lu alternative machine codes"),
2197 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2199 non_fatal (_("treating that number as an absolute e_machine value instead"));
2200 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
2203 non_fatal (_("ignoring the alternative value"));
2210 /* Read each archive element in turn from IBFD, copy the
2211 contents to temp file, and keep the temp file handle.
2212 If 'force_output_target' is TRUE then make sure that
2213 all elements in the new archive are of the type
2217 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
2218 bfd_boolean force_output_target,
2219 const bfd_arch_info_type *input_arch)
2223 struct name_list *next;
2227 bfd **ptr = &obfd->archive_head;
2230 const char *filename;
2232 /* Make a temp directory to hold the contents. */
2233 dir = make_tempdir (bfd_get_filename (obfd));
2235 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2238 if (strip_symbols == STRIP_ALL)
2239 obfd->has_armap = FALSE;
2241 obfd->has_armap = ibfd->has_armap;
2242 obfd->is_thin_archive = ibfd->is_thin_archive;
2245 obfd->flags |= BFD_DETERMINISTIC_OUTPUT;
2249 this_element = bfd_openr_next_archived_file (ibfd, NULL);
2251 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
2254 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
2258 while (!status && this_element != NULL)
2264 int stat_status = 0;
2265 bfd_boolean del = TRUE;
2266 bfd_boolean ok_object;
2268 /* Create an output file for this member. */
2269 output_name = concat (dir, "/",
2270 bfd_get_filename (this_element), (char *) 0);
2272 /* If the file already exists, make another temp dir. */
2273 if (stat (output_name, &buf) >= 0)
2275 output_name = make_tempdir (output_name);
2276 if (output_name == NULL)
2277 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2280 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2281 l->name = output_name;
2285 output_name = concat (output_name, "/",
2286 bfd_get_filename (this_element), (char *) 0);
2291 stat_status = bfd_stat_arch_elt (this_element, &buf);
2293 if (stat_status != 0)
2294 non_fatal (_("internal stat error on %s"),
2295 bfd_get_filename (this_element));
2298 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2299 l->name = output_name;
2304 ok_object = bfd_check_format (this_element, bfd_object);
2306 bfd_nonfatal_message (NULL, this_element, NULL,
2307 _("Unable to recognise the format of file"));
2309 /* PR binutils/3110: Cope with archives
2310 containing multiple target types. */
2311 if (force_output_target || !ok_object)
2312 output_bfd = bfd_openw (output_name, output_target);
2314 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
2316 if (output_bfd == NULL)
2318 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2325 del = !copy_object (this_element, output_bfd, input_arch);
2327 if (del && bfd_get_arch (this_element) == bfd_arch_unknown)
2328 /* Try again as an unknown object file. */
2330 else if (!bfd_close (output_bfd))
2332 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2333 /* Error in new object file. Don't change archive. */
2340 del = !copy_unknown_object (this_element, output_bfd);
2341 if (!bfd_close_all_done (output_bfd))
2343 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2344 /* Error in new object file. Don't change archive. */
2351 unlink (output_name);
2356 if (preserve_dates && stat_status == 0)
2357 set_times (output_name, &buf);
2359 /* Open the newly output file and attach to our list. */
2360 output_bfd = bfd_openr (output_name, output_target);
2362 l->obfd = output_bfd;
2365 ptr = &output_bfd->archive_next;
2367 last_element = this_element;
2369 this_element = bfd_openr_next_archived_file (ibfd, last_element);
2371 bfd_close (last_element);
2376 filename = bfd_get_filename (obfd);
2377 if (!bfd_close (obfd))
2380 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2384 filename = bfd_get_filename (ibfd);
2385 if (!bfd_close (ibfd))
2388 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2392 /* Delete all the files that we opened. */
2393 for (l = list; l != NULL; l = l->next)
2395 if (l->obfd == NULL)
2399 bfd_close (l->obfd);
2407 set_long_section_mode (bfd *output_bfd, bfd *input_bfd, enum long_section_name_handling style)
2409 /* This is only relevant to Coff targets. */
2410 if (bfd_get_flavour (output_bfd) == bfd_target_coff_flavour)
2413 && bfd_get_flavour (input_bfd) == bfd_target_coff_flavour)
2414 style = bfd_coff_long_section_names (input_bfd) ? ENABLE : DISABLE;
2415 bfd_coff_set_long_section_names (output_bfd, style != DISABLE);
2419 /* The top-level control. */
2422 copy_file (const char *input_filename, const char *output_filename,
2423 const char *input_target, const char *output_target,
2424 const bfd_arch_info_type *input_arch)
2427 char **obj_matching;
2428 char **core_matching;
2429 off_t size = get_file_size (input_filename);
2434 non_fatal (_("error: the input file '%s' is empty"),
2440 /* To allow us to do "strip *" without dying on the first
2441 non-object file, failures are nonfatal. */
2442 ibfd = bfd_openr (input_filename, input_target);
2445 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2450 switch (do_debug_sections)
2453 ibfd->flags |= BFD_COMPRESS;
2456 ibfd->flags |= BFD_DECOMPRESS;
2462 if (bfd_check_format (ibfd, bfd_archive))
2464 bfd_boolean force_output_target;
2467 /* bfd_get_target does not return the correct value until
2468 bfd_check_format succeeds. */
2469 if (output_target == NULL)
2471 output_target = bfd_get_target (ibfd);
2472 force_output_target = FALSE;
2475 force_output_target = TRUE;
2477 obfd = bfd_openw (output_filename, output_target);
2480 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2484 /* This is a no-op on non-Coff targets. */
2485 set_long_section_mode (obfd, ibfd, long_section_names);
2487 copy_archive (ibfd, obfd, output_target, force_output_target, input_arch);
2489 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
2494 /* bfd_get_target does not return the correct value until
2495 bfd_check_format succeeds. */
2496 if (output_target == NULL)
2497 output_target = bfd_get_target (ibfd);
2499 obfd = bfd_openw (output_filename, output_target);
2502 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2506 /* This is a no-op on non-Coff targets. */
2507 set_long_section_mode (obfd, ibfd, long_section_names);
2509 if (! copy_object (ibfd, obfd, input_arch))
2512 if (!bfd_close (obfd))
2515 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2519 if (!bfd_close (ibfd))
2522 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2528 bfd_error_type obj_error = bfd_get_error ();
2529 bfd_error_type core_error;
2531 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2533 /* This probably can't happen.. */
2534 if (obj_error == bfd_error_file_ambiguously_recognized)
2535 free (obj_matching);
2539 core_error = bfd_get_error ();
2540 /* Report the object error in preference to the core error. */
2541 if (obj_error != core_error)
2542 bfd_set_error (obj_error);
2544 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2546 if (obj_error == bfd_error_file_ambiguously_recognized)
2548 list_matching_formats (obj_matching);
2549 free (obj_matching);
2551 if (core_error == bfd_error_file_ambiguously_recognized)
2553 list_matching_formats (core_matching);
2554 free (core_matching);
2561 /* Add a name to the section renaming list. */
2564 add_section_rename (const char * old_name, const char * new_name,
2567 section_rename * srename;
2569 /* Check for conflicts first. */
2570 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2571 if (strcmp (srename->old_name, old_name) == 0)
2573 /* Silently ignore duplicate definitions. */
2574 if (strcmp (srename->new_name, new_name) == 0
2575 && srename->flags == flags)
2578 fatal (_("Multiple renames of section %s"), old_name);
2581 srename = (section_rename *) xmalloc (sizeof (* srename));
2583 srename->old_name = old_name;
2584 srename->new_name = new_name;
2585 srename->flags = flags;
2586 srename->next = section_rename_list;
2588 section_rename_list = srename;
2591 /* Check the section rename list for a new name of the input section
2592 ISECTION. Return the new name if one is found.
2593 Also set RETURNED_FLAGS to the flags to be used for this section. */
2596 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2597 flagword * returned_flags)
2599 const char * old_name = bfd_section_name (ibfd, isection);
2600 section_rename * srename;
2602 /* Default to using the flags of the input section. */
2603 * returned_flags = bfd_get_section_flags (ibfd, isection);
2605 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2606 if (strcmp (srename->old_name, old_name) == 0)
2608 if (srename->flags != (flagword) -1)
2609 * returned_flags = srename->flags;
2611 return srename->new_name;
2617 /* Once each of the sections is copied, we may still need to do some
2618 finalization work for private section headers. Do that here. */
2621 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2623 /* Allow the BFD backend to copy any private data it understands
2624 from the input section to the output section. */
2625 if (! bfd_copy_private_header_data (ibfd, obfd))
2628 bfd_nonfatal_message (NULL, ibfd, NULL,
2629 _("error in private header data"));
2633 /* All went well. */
2637 /* Create a section in OBFD with the same
2638 name and attributes as ISECTION in IBFD. */
2641 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2643 bfd *obfd = (bfd *) obfdarg;
2644 struct section_list *p;
2652 char *prefix = NULL;
2653 bfd_boolean make_nobits;
2655 if (is_strip_section (ibfd, isection))
2658 /* Get the, possibly new, name of the output section. */
2659 name = find_section_rename (ibfd, isection, & flags);
2661 /* Prefix sections. */
2662 if ((prefix_alloc_sections_string)
2663 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2664 prefix = prefix_alloc_sections_string;
2665 else if (prefix_sections_string)
2666 prefix = prefix_sections_string;
2672 n = (char *) xmalloc (strlen (prefix) + strlen (name) + 1);
2678 make_nobits = FALSE;
2680 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
2681 SECTION_CONTEXT_SET_FLAGS);
2683 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2684 else if (strip_symbols == STRIP_NONDEBUG
2685 && (flags & (SEC_ALLOC | SEC_GROUP)) != 0
2686 && !(ibfd->xvec->flavour == bfd_target_elf_flavour
2687 && elf_section_type (isection) == SHT_NOTE))
2689 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
2690 if (obfd->xvec->flavour == bfd_target_elf_flavour)
2694 /* Twiddle the input section flags so that it seems to
2695 elf.c:copy_private_bfd_data that section flags have not
2696 changed between input and output sections. This hack
2697 prevents wholesale rewriting of the program headers. */
2698 isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
2702 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2704 if (osection == NULL)
2706 err = _("failed to create output section");
2711 elf_section_type (osection) = SHT_NOBITS;
2713 size = bfd_section_size (ibfd, isection);
2715 size = (size + interleave - 1) / interleave * copy_width;
2716 else if (extract_symbol)
2718 if (! bfd_set_section_size (obfd, osection, size))
2720 err = _("failed to set size");
2724 vma = bfd_section_vma (ibfd, isection);
2725 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
2726 SECTION_CONTEXT_ALTER_VMA | SECTION_CONTEXT_SET_VMA);
2729 if (p->context & SECTION_CONTEXT_SET_VMA)
2735 vma += change_section_address;
2737 if (! bfd_set_section_vma (obfd, osection, vma))
2739 err = _("failed to set vma");
2743 lma = isection->lma;
2744 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
2745 SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_SET_LMA);
2748 if (p->context & SECTION_CONTEXT_ALTER_LMA)
2754 lma += change_section_address;
2756 osection->lma = lma;
2758 /* FIXME: This is probably not enough. If we change the LMA we
2759 may have to recompute the header for the file as well. */
2760 if (!bfd_set_section_alignment (obfd,
2762 bfd_section_alignment (ibfd, isection)))
2764 err = _("failed to set alignment");
2768 /* Copy merge entity size. */
2769 osection->entsize = isection->entsize;
2771 /* This used to be mangle_section; we do here to avoid using
2772 bfd_get_section_by_name since some formats allow multiple
2773 sections with the same name. */
2774 isection->output_section = osection;
2775 isection->output_offset = 0;
2777 /* Do not copy backend data if --extract-symbol is passed; anything
2778 that needs to look at the section contents will fail. */
2782 if ((isection->flags & SEC_GROUP) != 0)
2784 asymbol *gsym = group_signature (isection);
2788 gsym->flags |= BSF_KEEP;
2789 if (ibfd->xvec->flavour == bfd_target_elf_flavour)
2790 elf_group_id (isection) = gsym;
2794 /* Allow the BFD backend to copy any private data it understands
2795 from the input section to the output section. */
2796 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2798 err = _("failed to copy private data");
2802 /* All went well. */
2807 bfd_nonfatal_message (NULL, obfd, osection, err);
2810 /* Return TRUE if input section ISECTION should be skipped. */
2813 skip_section (bfd *ibfd, sec_ptr isection)
2819 /* If we have already failed earlier on,
2820 do not keep on generating complaints now. */
2827 if (is_strip_section (ibfd, isection))
2830 flags = bfd_get_section_flags (ibfd, isection);
2831 if ((flags & SEC_GROUP) != 0)
2834 osection = isection->output_section;
2835 size = bfd_get_section_size (isection);
2837 if (size == 0 || osection == 0)
2843 /* Copy relocations in input section ISECTION of IBFD to an output
2844 section with the same name in OBFDARG. If stripping then don't
2845 copy any relocation info. */
2848 copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2850 bfd *obfd = (bfd *) obfdarg;
2856 if (skip_section (ibfd, isection))
2859 osection = isection->output_section;
2861 /* Core files and DWO files do not need to be relocated. */
2862 if (bfd_get_format (obfd) == bfd_core || strip_symbols == STRIP_NONDWO)
2866 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2870 /* Do not complain if the target does not support relocations. */
2871 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2876 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
2884 bfd_set_reloc (obfd, osection, NULL, 0);
2885 osection->flags &= ~SEC_RELOC;
2889 relpp = (arelent **) xmalloc (relsize);
2890 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2894 bfd_nonfatal_message (NULL, ibfd, isection,
2895 _("relocation count is negative"));
2899 if (strip_symbols == STRIP_ALL)
2901 /* Remove relocations which are not in
2902 keep_strip_specific_list. */
2903 arelent **temp_relpp;
2904 long temp_relcount = 0;
2907 temp_relpp = (arelent **) xmalloc (relsize);
2908 for (i = 0; i < relcount; i++)
2909 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2910 keep_specific_htab))
2911 temp_relpp [temp_relcount++] = relpp [i];
2912 relcount = temp_relcount;
2917 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2920 osection->flags &= ~SEC_RELOC;
2926 /* Copy the data of input section ISECTION of IBFD
2927 to an output section with the same name in OBFD. */
2930 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2932 bfd *obfd = (bfd *) obfdarg;
2933 struct section_list *p;
2937 if (skip_section (ibfd, isection))
2940 osection = isection->output_section;
2941 size = bfd_get_section_size (isection);
2943 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2944 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2946 bfd_byte *memhunk = NULL;
2948 if (!bfd_get_full_section_contents (ibfd, isection, &memhunk))
2951 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
2957 /* We don't handle leftover bytes (too many possible behaviors,
2958 and we don't know what the user wants). The section length
2959 must be a multiple of the number of bytes to swap. */
2960 if ((size % reverse_bytes) == 0)
2965 for (i = 0; i < size; i += reverse_bytes)
2966 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
2968 bfd_byte *m = (bfd_byte *) memhunk;
2971 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
2972 m[(i + reverse_bytes) - (j + 1)] = b;
2976 /* User must pad the section up in order to do this. */
2977 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
2978 bfd_section_name (ibfd, isection), reverse_bytes);
2983 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2984 char *from = (char *) memhunk + copy_byte;
2985 char *to = (char *) memhunk;
2986 char *end = (char *) memhunk + size;
2989 for (; from < end; from += interleave)
2990 for (i = 0; i < copy_width; i++)
2992 if (&from[i] >= end)
2997 size = (size + interleave - 1 - copy_byte) / interleave * copy_width;
2998 osection->lma /= interleave;
3001 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
3004 bfd_nonfatal_message (NULL, obfd, osection, NULL);
3009 else if ((p = find_section_list (bfd_get_section_name (ibfd, isection),
3010 FALSE, SECTION_CONTEXT_SET_FLAGS)) != NULL
3011 && (p->flags & SEC_HAS_CONTENTS) != 0)
3013 void *memhunk = xmalloc (size);
3015 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3016 flag--they can just remove the section entirely and add it
3017 back again. However, we do permit them to turn on the
3018 SEC_HAS_CONTENTS flag, and take it to mean that the section
3019 contents should be zeroed out. */
3021 memset (memhunk, 0, size);
3022 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
3025 bfd_nonfatal_message (NULL, obfd, osection, NULL);
3032 /* Get all the sections. This is used when --gap-fill or --pad-to is
3036 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
3038 asection ***secppp = (asection ***) secppparg;
3040 **secppp = osection;
3044 /* Sort sections by VMA. This is called via qsort, and is used when
3045 --gap-fill or --pad-to is used. We force non loadable or empty
3046 sections to the front, where they are easier to ignore. */
3049 compare_section_lma (const void *arg1, const void *arg2)
3051 const asection *const *sec1 = (const asection * const *) arg1;
3052 const asection *const *sec2 = (const asection * const *) arg2;
3053 flagword flags1, flags2;
3055 /* Sort non loadable sections to the front. */
3056 flags1 = (*sec1)->flags;
3057 flags2 = (*sec2)->flags;
3058 if ((flags1 & SEC_HAS_CONTENTS) == 0
3059 || (flags1 & SEC_LOAD) == 0)
3061 if ((flags2 & SEC_HAS_CONTENTS) != 0
3062 && (flags2 & SEC_LOAD) != 0)
3067 if ((flags2 & SEC_HAS_CONTENTS) == 0
3068 || (flags2 & SEC_LOAD) == 0)
3072 /* Sort sections by LMA. */
3073 if ((*sec1)->lma > (*sec2)->lma)
3075 else if ((*sec1)->lma < (*sec2)->lma)
3078 /* Sort sections with the same LMA by size. */
3079 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
3081 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
3087 /* Mark all the symbols which will be used in output relocations with
3088 the BSF_KEEP flag so that those symbols will not be stripped.
3090 Ignore relocations which will not appear in the output file. */
3093 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
3095 asymbol **symbols = (asymbol **) symbolsarg;
3100 /* Ignore an input section with no corresponding output section. */
3101 if (isection->output_section == NULL)
3104 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
3107 /* Do not complain if the target does not support relocations. */
3108 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
3110 bfd_fatal (bfd_get_filename (ibfd));
3116 relpp = (arelent **) xmalloc (relsize);
3117 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
3119 bfd_fatal (bfd_get_filename (ibfd));
3121 /* Examine each symbol used in a relocation. If it's not one of the
3122 special bfd section symbols, then mark it with BSF_KEEP. */
3123 for (i = 0; i < relcount; i++)
3125 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
3126 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
3127 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
3128 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
3135 /* Write out debugging information. */
3138 write_debugging_info (bfd *obfd, void *dhandle,
3139 long *symcountp ATTRIBUTE_UNUSED,
3140 asymbol ***symppp ATTRIBUTE_UNUSED)
3142 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
3143 return write_ieee_debugging_info (obfd, dhandle);
3145 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
3146 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
3148 bfd_byte *syms, *strings;
3149 bfd_size_type symsize, stringsize;
3150 asection *stabsec, *stabstrsec;
3153 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
3158 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
3159 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
3160 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
3162 || stabstrsec == NULL
3163 || ! bfd_set_section_size (obfd, stabsec, symsize)
3164 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
3165 || ! bfd_set_section_alignment (obfd, stabsec, 2)
3166 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
3168 bfd_nonfatal_message (NULL, obfd, NULL,
3169 _("can't create debugging section"));
3173 /* We can get away with setting the section contents now because
3174 the next thing the caller is going to do is copy over the
3175 real sections. We may someday have to split the contents
3176 setting out of this function. */
3177 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
3178 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
3181 bfd_nonfatal_message (NULL, obfd, NULL,
3182 _("can't set debugging section contents"));
3189 bfd_nonfatal_message (NULL, obfd, NULL,
3190 _("don't know how to write debugging information for %s"),
3191 bfd_get_target (obfd));
3195 /* If neither -D nor -U was specified explicitly,
3196 then use the configured default. */
3198 default_deterministic (void)
3200 if (deterministic < 0)
3201 deterministic = DEFAULT_AR_DETERMINISTIC;
3205 strip_main (int argc, char *argv[])
3207 char *input_target = NULL;
3208 char *output_target = NULL;
3209 bfd_boolean show_version = FALSE;
3210 bfd_boolean formats_info = FALSE;
3213 char *output_file = NULL;
3215 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
3216 strip_options, (int *) 0)) != EOF)
3221 input_target = optarg;
3224 output_target = optarg;
3227 input_target = output_target = optarg;
3230 find_section_list (optarg, TRUE, SECTION_CONTEXT_REMOVE);
3231 sections_removed = TRUE;
3234 strip_symbols = STRIP_ALL;
3238 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3239 strip_symbols = STRIP_DEBUG;
3241 case OPTION_STRIP_DWO:
3242 strip_symbols = STRIP_DWO;
3244 case OPTION_STRIP_UNNEEDED:
3245 strip_symbols = STRIP_UNNEEDED;
3248 add_specific_symbol (optarg, keep_specific_htab);
3251 add_specific_symbol (optarg, strip_specific_htab);
3254 output_file = optarg;
3257 preserve_dates = TRUE;
3260 deterministic = TRUE;
3263 deterministic = FALSE;
3266 discard_locals = LOCALS_ALL;
3269 discard_locals = LOCALS_START_L;
3275 show_version = TRUE;
3277 case OPTION_FORMATS_INFO:
3278 formats_info = TRUE;
3280 case OPTION_ONLY_KEEP_DEBUG:
3281 strip_symbols = STRIP_NONDEBUG;
3283 case OPTION_KEEP_FILE_SYMBOLS:
3284 keep_file_symbols = 1;
3287 /* We've been given a long option. */
3294 strip_usage (stdout, 0);
3296 strip_usage (stderr, 1);
3307 print_version ("strip");
3309 default_deterministic ();
3311 /* Default is to strip all symbols. */
3312 if (strip_symbols == STRIP_UNDEF
3313 && discard_locals == LOCALS_UNDEF
3314 && htab_elements (strip_specific_htab) == 0)
3315 strip_symbols = STRIP_ALL;
3317 if (output_target == NULL)
3318 output_target = input_target;
3322 || (output_file != NULL && (i + 1) < argc))
3323 strip_usage (stderr, 1);
3325 for (; i < argc; i++)
3327 int hold_status = status;
3328 struct stat statbuf;
3331 if (get_file_size (argv[i]) < 1)
3338 /* No need to check the return value of stat().
3339 It has already been checked in get_file_size(). */
3340 stat (argv[i], &statbuf);
3342 if (output_file == NULL
3343 || filename_cmp (argv[i], output_file) == 0)
3344 tmpname = make_tempname (argv[i]);
3346 tmpname = output_file;
3348 if (tmpname == NULL)
3350 bfd_nonfatal_message (argv[i], NULL, NULL,
3351 _("could not create temporary file to hold stripped copy"));
3357 copy_file (argv[i], tmpname, input_target, output_target, NULL);
3361 set_times (tmpname, &statbuf);
3362 if (output_file != tmpname)
3363 status = (smart_rename (tmpname,
3364 output_file ? output_file : argv[i],
3365 preserve_dates) != 0);
3367 status = hold_status;
3370 unlink_if_ordinary (tmpname);
3371 if (output_file != tmpname)
3378 /* Set up PE subsystem. */
3381 set_pe_subsystem (const char *s)
3383 const char *version, *subsystem;
3393 { "native", 0, IMAGE_SUBSYSTEM_NATIVE },
3394 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI },
3395 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI },
3396 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI },
3397 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI },
3398 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION },
3399 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER },
3400 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER },
3401 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER },
3402 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX }
3408 /* Check for the presence of a version number. */
3409 version = strchr (s, ':');
3410 if (version == NULL)
3414 int len = version - s;
3418 version = copy + 1 + len;
3419 pe_major_subsystem_version = strtoul (version, ©, 0);
3421 pe_minor_subsystem_version = strtoul (copy + 1, ©, 0);
3423 non_fatal (_("%s: bad version in PE subsystem"), s);
3426 /* Check for numeric subsystem. */
3427 value = (short) strtol (subsystem, ©, 0);
3430 for (i = 0; i < ARRAY_SIZE (v); i++)
3431 if (v[i].value == value)
3433 pe_subsystem = value;
3434 set_def = v[i].set_def;
3440 /* Search for subsystem by name. */
3441 for (i = 0; i < ARRAY_SIZE (v); i++)
3442 if (strcmp (subsystem, v[i].name) == 0)
3444 pe_subsystem = v[i].value;
3445 set_def = v[i].set_def;
3453 fatal (_("unknown PE subsystem: %s"), s);
3458 if (pe_file_alignment == (bfd_vma) -1)
3459 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
3460 if (pe_section_alignment == (bfd_vma) -1)
3461 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
3465 free ((char *) subsystem);
3468 /* Convert EFI target to PEI target. */
3471 convert_efi_target (char *efi)
3477 if (strcmp (efi + 4, "ia32") == 0)
3479 /* Change ia32 to i386. */
3484 else if (strcmp (efi + 4, "x86_64") == 0)
3486 /* Change x86_64 to x86-64. */
3492 copy_main (int argc, char *argv[])
3494 char *input_filename = NULL;
3495 char *output_filename = NULL;
3497 char *input_target = NULL;
3498 char *output_target = NULL;
3499 bfd_boolean show_version = FALSE;
3500 bfd_boolean change_warn = TRUE;
3501 bfd_boolean formats_info = FALSE;
3503 struct stat statbuf;
3504 const bfd_arch_info_type *input_arch = NULL;
3506 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
3507 copy_options, (int *) 0)) != EOF)
3512 copy_byte = atoi (optarg);
3514 fatal (_("byte number must be non-negative"));
3518 input_arch = bfd_scan_arch (optarg);
3519 if (input_arch == NULL)
3520 fatal (_("architecture %s unknown"), optarg);
3526 interleave = atoi (optarg);
3528 fatal (_("interleave must be positive"));
3534 case OPTION_INTERLEAVE_WIDTH:
3535 copy_width = atoi (optarg);
3537 fatal(_("interleave width must be positive"));
3541 case 's': /* "source" - 'I' is preferred */
3542 input_target = optarg;
3546 case 'd': /* "destination" - 'O' is preferred */
3547 output_target = optarg;
3551 input_target = output_target = optarg;
3555 find_section_list (optarg, TRUE, SECTION_CONTEXT_COPY);
3556 sections_copied = TRUE;
3560 find_section_list (optarg, TRUE, SECTION_CONTEXT_REMOVE);
3561 sections_removed = TRUE;
3565 strip_symbols = STRIP_ALL;
3569 strip_symbols = STRIP_DEBUG;
3572 case OPTION_STRIP_DWO:
3573 strip_symbols = STRIP_DWO;
3576 case OPTION_STRIP_UNNEEDED:
3577 strip_symbols = STRIP_UNNEEDED;
3580 case OPTION_ONLY_KEEP_DEBUG:
3581 strip_symbols = STRIP_NONDEBUG;
3584 case OPTION_KEEP_FILE_SYMBOLS:
3585 keep_file_symbols = 1;
3588 case OPTION_ADD_GNU_DEBUGLINK:
3589 long_section_names = ENABLE ;
3590 gnu_debuglink_filename = optarg;
3594 add_specific_symbol (optarg, keep_specific_htab);
3598 add_specific_symbol (optarg, strip_specific_htab);
3601 case OPTION_STRIP_UNNEEDED_SYMBOL:
3602 add_specific_symbol (optarg, strip_unneeded_htab);
3606 add_specific_symbol (optarg, localize_specific_htab);
3609 case OPTION_GLOBALIZE_SYMBOL:
3610 add_specific_symbol (optarg, globalize_specific_htab);
3614 add_specific_symbol (optarg, keepglobal_specific_htab);
3618 add_specific_symbol (optarg, weaken_specific_htab);
3622 preserve_dates = TRUE;
3626 deterministic = TRUE;
3630 deterministic = FALSE;
3638 discard_locals = LOCALS_ALL;
3642 discard_locals = LOCALS_START_L;
3650 show_version = TRUE;
3653 case OPTION_FORMATS_INFO:
3654 formats_info = TRUE;
3661 case OPTION_ADD_SECTION:
3665 struct section_add *pa;
3668 s = strchr (optarg, '=');
3671 fatal (_("bad format for %s"), "--add-section");
3673 pa = (struct section_add *) xmalloc (sizeof (struct section_add));
3674 pa->name = xstrndup (optarg, s - optarg);
3675 pa->filename = s + 1;
3677 /* We don't use get_file_size so that we can do
3678 --add-section .note.GNU_stack=/dev/null
3679 get_file_size doesn't work on /dev/null. */
3681 f = fopen (pa->filename, FOPEN_RB);
3683 fatal (_("cannot open: %s: %s"),
3684 pa->filename, strerror (errno));
3688 pa->contents = (bfd_byte *) xmalloc (alloc);
3696 pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc);
3699 got = fread (pa->contents + off, 1, alloc - off, f);
3701 fatal (_("%s: fread failed"), pa->filename);
3710 pa->next = add_sections;
3715 case OPTION_DUMP_SECTION:
3718 struct section_add *pa;
3720 s = strchr (optarg, '=');
3723 fatal (_("bad format for %s"), "--dump-section");
3725 pa = (struct section_add *) xmalloc (sizeof * pa);
3726 pa->name = xstrndup (optarg, s - optarg);
3727 pa->filename = s + 1;
3728 pa->next = dump_sections;
3729 pa->contents = NULL;
3734 case OPTION_CHANGE_START:
3735 change_start = parse_vma (optarg, "--change-start");
3738 case OPTION_CHANGE_SECTION_ADDRESS:
3739 case OPTION_CHANGE_SECTION_LMA:
3740 case OPTION_CHANGE_SECTION_VMA:
3742 struct section_list * p;
3743 unsigned int context = 0;
3747 char *option = NULL;
3752 case OPTION_CHANGE_SECTION_ADDRESS:
3753 option = "--change-section-address";
3754 context = SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_ALTER_VMA;
3756 case OPTION_CHANGE_SECTION_LMA:
3757 option = "--change-section-lma";
3758 context = SECTION_CONTEXT_ALTER_LMA;
3760 case OPTION_CHANGE_SECTION_VMA:
3761 option = "--change-section-vma";
3762 context = SECTION_CONTEXT_ALTER_VMA;
3766 s = strchr (optarg, '=');
3769 s = strchr (optarg, '+');
3772 s = strchr (optarg, '-');
3774 fatal (_("bad format for %s"), option);
3779 /* Correct the context. */
3782 case OPTION_CHANGE_SECTION_ADDRESS:
3783 context = SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_SET_VMA;
3785 case OPTION_CHANGE_SECTION_LMA:
3786 context = SECTION_CONTEXT_SET_LMA;
3788 case OPTION_CHANGE_SECTION_VMA:
3789 context = SECTION_CONTEXT_SET_VMA;
3795 name = (char *) xmalloc (len + 1);
3796 strncpy (name, optarg, len);
3799 p = find_section_list (name, TRUE, context);
3801 val = parse_vma (s + 1, option);
3807 case OPTION_CHANGE_SECTION_ADDRESS:
3811 case OPTION_CHANGE_SECTION_LMA:
3815 case OPTION_CHANGE_SECTION_VMA:
3822 case OPTION_CHANGE_ADDRESSES:
3823 change_section_address = parse_vma (optarg, "--change-addresses");
3824 change_start = change_section_address;
3827 case OPTION_CHANGE_WARNINGS:
3831 case OPTION_CHANGE_LEADING_CHAR:
3832 change_leading_char = TRUE;
3835 case OPTION_COMPRESS_DEBUG_SECTIONS:
3836 do_debug_sections = compress;
3839 case OPTION_DEBUGGING:
3840 convert_debugging = TRUE;
3843 case OPTION_DECOMPRESS_DEBUG_SECTIONS:
3844 do_debug_sections = decompress;
3847 case OPTION_GAP_FILL:
3849 bfd_vma gap_fill_vma;
3851 gap_fill_vma = parse_vma (optarg, "--gap-fill");
3852 gap_fill = (bfd_byte) gap_fill_vma;
3853 if ((bfd_vma) gap_fill != gap_fill_vma)
3857 sprintf_vma (buff, gap_fill_vma);
3859 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3862 gap_fill_set = TRUE;
3866 case OPTION_NO_CHANGE_WARNINGS:
3867 change_warn = FALSE;
3871 pad_to = parse_vma (optarg, "--pad-to");
3875 case OPTION_REMOVE_LEADING_CHAR:
3876 remove_leading_char = TRUE;
3879 case OPTION_REDEFINE_SYM:
3881 /* Push this redefinition onto redefine_symbol_list. */
3885 const char *nextarg;
3886 char *source, *target;
3888 s = strchr (optarg, '=');
3890 fatal (_("bad format for %s"), "--redefine-sym");
3893 source = (char *) xmalloc (len + 1);
3894 strncpy (source, optarg, len);
3898 len = strlen (nextarg);
3899 target = (char *) xmalloc (len + 1);
3900 strcpy (target, nextarg);
3902 redefine_list_append ("--redefine-sym", source, target);
3909 case OPTION_REDEFINE_SYMS:
3910 add_redefine_syms_file (optarg);
3913 case OPTION_SET_SECTION_FLAGS:
3915 struct section_list *p;
3920 s = strchr (optarg, '=');
3922 fatal (_("bad format for %s"), "--set-section-flags");
3925 name = (char *) xmalloc (len + 1);
3926 strncpy (name, optarg, len);
3929 p = find_section_list (name, TRUE, SECTION_CONTEXT_SET_FLAGS);
3931 p->flags = parse_flags (s + 1);
3935 case OPTION_RENAME_SECTION:
3938 const char *eq, *fl;
3943 eq = strchr (optarg, '=');
3945 fatal (_("bad format for %s"), "--rename-section");
3949 fatal (_("bad format for %s"), "--rename-section");
3951 old_name = (char *) xmalloc (len + 1);
3952 strncpy (old_name, optarg, len);
3956 fl = strchr (eq, ',');
3959 flags = parse_flags (fl + 1);
3969 fatal (_("bad format for %s"), "--rename-section");
3971 new_name = (char *) xmalloc (len + 1);
3972 strncpy (new_name, eq, len);
3975 add_section_rename (old_name, new_name, flags);
3979 case OPTION_SET_START:
3980 set_start = parse_vma (optarg, "--set-start");
3981 set_start_set = TRUE;
3984 case OPTION_SREC_LEN:
3985 Chunk = parse_vma (optarg, "--srec-len");
3988 case OPTION_SREC_FORCES3:
3992 case OPTION_STRIP_SYMBOLS:
3993 add_specific_symbols (optarg, strip_specific_htab);
3996 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3997 add_specific_symbols (optarg, strip_unneeded_htab);
4000 case OPTION_KEEP_SYMBOLS:
4001 add_specific_symbols (optarg, keep_specific_htab);
4004 case OPTION_LOCALIZE_HIDDEN:
4005 localize_hidden = TRUE;
4008 case OPTION_LOCALIZE_SYMBOLS:
4009 add_specific_symbols (optarg, localize_specific_htab);
4012 case OPTION_LONG_SECTION_NAMES:
4013 if (!strcmp ("enable", optarg))
4014 long_section_names = ENABLE;
4015 else if (!strcmp ("disable", optarg))
4016 long_section_names = DISABLE;
4017 else if (!strcmp ("keep", optarg))
4018 long_section_names = KEEP;
4020 fatal (_("unknown long section names option '%s'"), optarg);
4023 case OPTION_GLOBALIZE_SYMBOLS:
4024 add_specific_symbols (optarg, globalize_specific_htab);
4027 case OPTION_KEEPGLOBAL_SYMBOLS:
4028 add_specific_symbols (optarg, keepglobal_specific_htab);
4031 case OPTION_WEAKEN_SYMBOLS:
4032 add_specific_symbols (optarg, weaken_specific_htab);
4035 case OPTION_ALT_MACH_CODE:
4036 use_alt_mach_code = strtoul (optarg, NULL, 0);
4037 if (use_alt_mach_code == 0)
4038 fatal (_("unable to parse alternative machine code"));
4041 case OPTION_PREFIX_SYMBOLS:
4042 prefix_symbols_string = optarg;
4045 case OPTION_PREFIX_SECTIONS:
4046 prefix_sections_string = optarg;
4049 case OPTION_PREFIX_ALLOC_SECTIONS:
4050 prefix_alloc_sections_string = optarg;
4053 case OPTION_READONLY_TEXT:
4054 bfd_flags_to_set |= WP_TEXT;
4055 bfd_flags_to_clear &= ~WP_TEXT;
4058 case OPTION_WRITABLE_TEXT:
4059 bfd_flags_to_clear |= WP_TEXT;
4060 bfd_flags_to_set &= ~WP_TEXT;
4064 bfd_flags_to_set |= D_PAGED;
4065 bfd_flags_to_clear &= ~D_PAGED;
4069 bfd_flags_to_clear |= D_PAGED;
4070 bfd_flags_to_set &= ~D_PAGED;
4073 case OPTION_EXTRACT_DWO:
4074 strip_symbols = STRIP_NONDWO;
4077 case OPTION_EXTRACT_SYMBOL:
4078 extract_symbol = TRUE;
4081 case OPTION_REVERSE_BYTES:
4083 int prev = reverse_bytes;
4085 reverse_bytes = atoi (optarg);
4086 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
4087 fatal (_("number of bytes to reverse must be positive and even"));
4089 if (prev && prev != reverse_bytes)
4090 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4095 case OPTION_FILE_ALIGNMENT:
4096 pe_file_alignment = parse_vma (optarg, "--file-alignment");
4102 pe_heap_reserve = strtoul (optarg, &end, 0);
4104 || (*end != '.' && *end != '\0'))
4105 non_fatal (_("%s: invalid reserve value for --heap"),
4107 else if (*end != '\0')
4109 pe_heap_commit = strtoul (end + 1, &end, 0);
4111 non_fatal (_("%s: invalid commit value for --heap"),
4117 case OPTION_IMAGE_BASE:
4118 pe_image_base = parse_vma (optarg, "--image-base");
4121 case OPTION_SECTION_ALIGNMENT:
4122 pe_section_alignment = parse_vma (optarg,
4123 "--section-alignment");
4126 case OPTION_SUBSYSTEM:
4127 set_pe_subsystem (optarg);
4133 pe_stack_reserve = strtoul (optarg, &end, 0);
4135 || (*end != '.' && *end != '\0'))
4136 non_fatal (_("%s: invalid reserve value for --stack"),
4138 else if (*end != '\0')
4140 pe_stack_commit = strtoul (end + 1, &end, 0);
4142 non_fatal (_("%s: invalid commit value for --stack"),
4149 /* We've been given a long option. */
4154 copy_usage (stdout, 0);
4157 copy_usage (stderr, 1);
4168 print_version ("objcopy");
4170 if (interleave && copy_byte == -1)
4171 fatal (_("interleave start byte must be set with --byte"));
4173 if (copy_byte >= interleave)
4174 fatal (_("byte number must be less than interleave"));
4176 if (copy_width > interleave - copy_byte)
4177 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4179 if (optind == argc || optind + 2 < argc)
4180 copy_usage (stderr, 1);
4182 input_filename = argv[optind];
4183 if (optind + 1 < argc)
4184 output_filename = argv[optind + 1];
4186 default_deterministic ();
4188 /* Default is to strip no symbols. */
4189 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
4190 strip_symbols = STRIP_NONE;
4192 if (output_target == NULL)
4193 output_target = input_target;
4195 /* Convert input EFI target to PEI target. */
4196 if (input_target != NULL
4197 && strncmp (input_target, "efi-", 4) == 0)
4201 efi = xstrdup (output_target + 4);
4202 if (strncmp (efi, "bsdrv-", 6) == 0
4203 || strncmp (efi, "rtdrv-", 6) == 0)
4205 else if (strncmp (efi, "app-", 4) != 0)
4206 fatal (_("unknown input EFI target: %s"), input_target);
4209 convert_efi_target (efi);
4212 /* Convert output EFI target to PEI target. */
4213 if (output_target != NULL
4214 && strncmp (output_target, "efi-", 4) == 0)
4218 efi = xstrdup (output_target + 4);
4219 if (strncmp (efi, "app-", 4) == 0)
4221 if (pe_subsystem == -1)
4222 pe_subsystem = IMAGE_SUBSYSTEM_EFI_APPLICATION;
4224 else if (strncmp (efi, "bsdrv-", 6) == 0)
4226 if (pe_subsystem == -1)
4227 pe_subsystem = IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER;
4230 else if (strncmp (efi, "rtdrv-", 6) == 0)
4232 if (pe_subsystem == -1)
4233 pe_subsystem = IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER;
4237 fatal (_("unknown output EFI target: %s"), output_target);
4239 if (pe_file_alignment == (bfd_vma) -1)
4240 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
4241 if (pe_section_alignment == (bfd_vma) -1)
4242 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
4244 output_target = efi;
4245 convert_efi_target (efi);
4249 if (stat (input_filename, & statbuf) < 0)
4250 fatal (_("warning: could not locate '%s'. System error message: %s"),
4251 input_filename, strerror (errno));
4253 /* If there is no destination file, or the source and destination files
4254 are the same, then create a temp and rename the result into the input. */
4255 if (output_filename == NULL
4256 || filename_cmp (input_filename, output_filename) == 0)
4257 tmpname = make_tempname (input_filename);
4259 tmpname = output_filename;
4261 if (tmpname == NULL)
4262 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4263 input_filename, strerror (errno));
4265 copy_file (input_filename, tmpname, input_target, output_target, input_arch);
4269 set_times (tmpname, &statbuf);
4270 if (tmpname != output_filename)
4271 status = (smart_rename (tmpname, input_filename,
4272 preserve_dates) != 0);
4275 unlink_if_ordinary (tmpname);
4279 struct section_list *p;
4281 for (p = change_sections; p != NULL; p = p->next)
4285 if (p->context & (SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA))
4289 sprintf_vma (buff, p->vma_val);
4291 /* xgettext:c-format */
4292 non_fatal (_("%s %s%c0x%s never used"),
4293 "--change-section-vma",
4295 p->context & SECTION_CONTEXT_SET_VMA ? '=' : '+',
4299 if (p->context & (SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA))
4303 sprintf_vma (buff, p->lma_val);
4305 /* xgettext:c-format */
4306 non_fatal (_("%s %s%c0x%s never used"),
4307 "--change-section-lma",
4309 p->context & SECTION_CONTEXT_SET_LMA ? '=' : '+',
4320 main (int argc, char *argv[])
4322 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4323 setlocale (LC_MESSAGES, "");
4325 #if defined (HAVE_SETLOCALE)
4326 setlocale (LC_CTYPE, "");
4328 bindtextdomain (PACKAGE, LOCALEDIR);
4329 textdomain (PACKAGE);
4331 program_name = argv[0];
4332 xmalloc_set_program_name (program_name);
4334 START_PROGRESS (program_name, 0);
4336 expandargv (&argc, &argv);
4338 strip_symbols = STRIP_UNDEF;
4339 discard_locals = LOCALS_UNDEF;
4342 set_default_bfd_target ();
4346 int i = strlen (program_name);
4347 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4348 /* Drop the .exe suffix, if any. */
4349 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
4352 program_name[i] = '\0';
4355 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
4358 create_symbol_htabs ();
4361 strip_main (argc, argv);
4363 copy_main (argc, argv);
4365 END_PROGRESS (program_name);