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))
1879 if (fwrite (contents, 1, size, f) != size)
1880 fatal (_("error writing section contents to %s (error: %s)"),
1885 bfd_nonfatal_message (NULL, ibfd, sec,
1886 _("could not retrieve section contents"));
1893 if (gnu_debuglink_filename != NULL)
1895 /* PR 15125: Give a helpful warning message if
1896 the debuglink section already exists, and
1897 allow the rest of the copy to complete. */
1898 if (bfd_get_section_by_name (obfd, ".gnu_debuglink"))
1900 non_fatal (_("%s: debuglink section already exists"),
1901 bfd_get_filename (obfd));
1902 gnu_debuglink_filename = NULL;
1906 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1907 (obfd, gnu_debuglink_filename);
1909 if (gnu_debuglink_section == NULL)
1911 bfd_nonfatal_message (NULL, obfd, NULL,
1912 _("cannot create debug link section `%s'"),
1913 gnu_debuglink_filename);
1917 /* Special processing for PE format files. We
1918 have no way to distinguish PE from COFF here. */
1919 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1921 bfd_vma debuglink_vma;
1922 asection * highest_section;
1925 /* The PE spec requires that all sections be adjacent and sorted
1926 in ascending order of VMA. It also specifies that debug
1927 sections should be last. This is despite the fact that debug
1928 sections are not loaded into memory and so in theory have no
1931 This means that the debuglink section must be given a non-zero
1932 VMA which makes it contiguous with other debug sections. So
1933 walk the current section list, find the section with the
1934 highest VMA and start the debuglink section after that one. */
1935 for (sec = obfd->sections, highest_section = NULL;
1939 && (highest_section == NULL
1940 || sec->vma > highest_section->vma))
1941 highest_section = sec;
1943 if (highest_section)
1944 debuglink_vma = BFD_ALIGN (highest_section->vma
1945 + highest_section->size,
1946 /* FIXME: We ought to be using
1947 COFF_PAGE_SIZE here or maybe
1948 bfd_get_section_alignment() (if it
1949 was set) but since this is for PE
1950 and we know the required alignment
1951 it is easier just to hard code it. */
1954 /* Umm, not sure what to do in this case. */
1955 debuglink_vma = 0x1000;
1957 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1962 if (bfd_count_sections (obfd) != 0
1963 && (gap_fill_set || pad_to_set))
1968 /* We must fill in gaps between the sections and/or we must pad
1969 the last section to a specified address. We do this by
1970 grabbing a list of the sections, sorting them by VMA, and
1971 increasing the section sizes as required to fill the gaps.
1972 We write out the gap contents below. */
1974 c = bfd_count_sections (obfd);
1975 osections = (asection **) xmalloc (c * sizeof (asection *));
1977 bfd_map_over_sections (obfd, get_sections, &set);
1979 qsort (osections, c, sizeof (asection *), compare_section_lma);
1981 gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type));
1982 memset (gaps, 0, c * sizeof (bfd_size_type));
1986 for (i = 0; i < c - 1; i++)
1990 bfd_vma gap_start, gap_stop;
1992 flags = bfd_get_section_flags (obfd, osections[i]);
1993 if ((flags & SEC_HAS_CONTENTS) == 0
1994 || (flags & SEC_LOAD) == 0)
1997 size = bfd_section_size (obfd, osections[i]);
1998 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1999 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
2000 if (gap_start < gap_stop)
2002 if (! bfd_set_section_size (obfd, osections[i],
2003 size + (gap_stop - gap_start)))
2005 bfd_nonfatal_message (NULL, obfd, osections[i],
2006 _("Can't fill gap after section"));
2010 gaps[i] = gap_stop - gap_start;
2011 if (max_gap < gap_stop - gap_start)
2012 max_gap = gap_stop - gap_start;
2022 lma = bfd_section_lma (obfd, osections[c - 1]);
2023 size = bfd_section_size (obfd, osections[c - 1]);
2024 if (lma + size < pad_to)
2026 if (! bfd_set_section_size (obfd, osections[c - 1],
2029 bfd_nonfatal_message (NULL, obfd, osections[c - 1],
2030 _("can't add padding"));
2035 gaps[c - 1] = pad_to - (lma + size);
2036 if (max_gap < pad_to - (lma + size))
2037 max_gap = pad_to - (lma + size);
2043 /* Symbol filtering must happen after the output sections
2044 have been created, but before their contents are set. */
2046 if (convert_debugging)
2047 dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE);
2049 if (strip_symbols == STRIP_DEBUG
2050 || strip_symbols == STRIP_ALL
2051 || strip_symbols == STRIP_UNNEEDED
2052 || strip_symbols == STRIP_NONDEBUG
2053 || strip_symbols == STRIP_DWO
2054 || strip_symbols == STRIP_NONDWO
2055 || discard_locals != LOCALS_UNDEF
2057 || htab_elements (strip_specific_htab) != 0
2058 || htab_elements (keep_specific_htab) != 0
2059 || htab_elements (localize_specific_htab) != 0
2060 || htab_elements (globalize_specific_htab) != 0
2061 || htab_elements (keepglobal_specific_htab) != 0
2062 || htab_elements (weaken_specific_htab) != 0
2063 || prefix_symbols_string
2066 || convert_debugging
2067 || change_leading_char
2068 || remove_leading_char
2069 || redefine_sym_list
2072 /* Mark symbols used in output relocations so that they
2073 are kept, even if they are local labels or static symbols.
2075 Note we iterate over the input sections examining their
2076 relocations since the relocations for the output sections
2077 haven't been set yet. mark_symbols_used_in_relocations will
2078 ignore input sections which have no corresponding output
2080 if (strip_symbols != STRIP_ALL)
2081 bfd_map_over_sections (ibfd,
2082 mark_symbols_used_in_relocations,
2084 osympp = (asymbol **) xmalloc ((symcount + 1) * sizeof (asymbol *));
2085 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
2088 if (convert_debugging && dhandle != NULL)
2090 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
2097 bfd_set_symtab (obfd, osympp, symcount);
2099 /* This has to happen before section positions are set. */
2100 bfd_map_over_sections (ibfd, copy_relocations_in_section, obfd);
2102 /* This has to happen after the symbol table has been set. */
2103 bfd_map_over_sections (ibfd, copy_section, obfd);
2105 if (add_sections != NULL)
2107 struct section_add *padd;
2109 for (padd = add_sections; padd != NULL; padd = padd->next)
2111 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
2114 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2120 if (gnu_debuglink_filename != NULL)
2122 if (! bfd_fill_in_gnu_debuglink_section
2123 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
2125 bfd_nonfatal_message (NULL, obfd, NULL,
2126 _("cannot fill debug link section `%s'"),
2127 gnu_debuglink_filename);
2132 if (gap_fill_set || pad_to_set)
2137 /* Fill in the gaps. */
2140 buf = (bfd_byte *) xmalloc (max_gap);
2141 memset (buf, gap_fill, max_gap);
2143 c = bfd_count_sections (obfd);
2144 for (i = 0; i < c; i++)
2152 off = bfd_section_size (obfd, osections[i]) - left;
2163 if (! bfd_set_section_contents (obfd, osections[i], buf,
2166 bfd_nonfatal_message (NULL, obfd, osections[i], NULL);
2177 /* Do not copy backend data if --extract-symbol is passed; anything
2178 that needs to look at the section contents will fail. */
2182 /* Allow the BFD backend to copy any private data it understands
2183 from the input BFD to the output BFD. This is done last to
2184 permit the routine to look at the filtered symbol table, which is
2185 important for the ECOFF code at least. */
2186 if (! bfd_copy_private_bfd_data (ibfd, obfd))
2188 bfd_nonfatal_message (NULL, obfd, NULL,
2189 _("error copying private BFD data"));
2193 /* Switch to the alternate machine code. We have to do this at the
2194 very end, because we only initialize the header when we create
2195 the first section. */
2196 if (use_alt_mach_code != 0)
2198 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
2200 non_fatal (_("this target does not support %lu alternative machine codes"),
2202 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2204 non_fatal (_("treating that number as an absolute e_machine value instead"));
2205 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
2208 non_fatal (_("ignoring the alternative value"));
2215 /* Read each archive element in turn from IBFD, copy the
2216 contents to temp file, and keep the temp file handle.
2217 If 'force_output_target' is TRUE then make sure that
2218 all elements in the new archive are of the type
2222 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
2223 bfd_boolean force_output_target,
2224 const bfd_arch_info_type *input_arch)
2228 struct name_list *next;
2232 bfd **ptr = &obfd->archive_head;
2235 const char *filename;
2237 /* Make a temp directory to hold the contents. */
2238 dir = make_tempdir (bfd_get_filename (obfd));
2240 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2243 if (strip_symbols == STRIP_ALL)
2244 obfd->has_armap = FALSE;
2246 obfd->has_armap = ibfd->has_armap;
2247 obfd->is_thin_archive = ibfd->is_thin_archive;
2250 obfd->flags |= BFD_DETERMINISTIC_OUTPUT;
2254 this_element = bfd_openr_next_archived_file (ibfd, NULL);
2256 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
2259 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
2263 while (!status && this_element != NULL)
2269 int stat_status = 0;
2270 bfd_boolean del = TRUE;
2271 bfd_boolean ok_object;
2273 /* Create an output file for this member. */
2274 output_name = concat (dir, "/",
2275 bfd_get_filename (this_element), (char *) 0);
2277 /* If the file already exists, make another temp dir. */
2278 if (stat (output_name, &buf) >= 0)
2280 output_name = make_tempdir (output_name);
2281 if (output_name == NULL)
2282 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2285 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2286 l->name = output_name;
2290 output_name = concat (output_name, "/",
2291 bfd_get_filename (this_element), (char *) 0);
2296 stat_status = bfd_stat_arch_elt (this_element, &buf);
2298 if (stat_status != 0)
2299 non_fatal (_("internal stat error on %s"),
2300 bfd_get_filename (this_element));
2303 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2304 l->name = output_name;
2309 ok_object = bfd_check_format (this_element, bfd_object);
2311 bfd_nonfatal_message (NULL, this_element, NULL,
2312 _("Unable to recognise the format of file"));
2314 /* PR binutils/3110: Cope with archives
2315 containing multiple target types. */
2316 if (force_output_target || !ok_object)
2317 output_bfd = bfd_openw (output_name, output_target);
2319 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
2321 if (output_bfd == NULL)
2323 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2330 del = !copy_object (this_element, output_bfd, input_arch);
2332 if (del && bfd_get_arch (this_element) == bfd_arch_unknown)
2333 /* Try again as an unknown object file. */
2335 else if (!bfd_close (output_bfd))
2337 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2338 /* Error in new object file. Don't change archive. */
2345 del = !copy_unknown_object (this_element, output_bfd);
2346 if (!bfd_close_all_done (output_bfd))
2348 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2349 /* Error in new object file. Don't change archive. */
2356 unlink (output_name);
2361 if (preserve_dates && stat_status == 0)
2362 set_times (output_name, &buf);
2364 /* Open the newly output file and attach to our list. */
2365 output_bfd = bfd_openr (output_name, output_target);
2367 l->obfd = output_bfd;
2370 ptr = &output_bfd->archive_next;
2372 last_element = this_element;
2374 this_element = bfd_openr_next_archived_file (ibfd, last_element);
2376 bfd_close (last_element);
2381 filename = bfd_get_filename (obfd);
2382 if (!bfd_close (obfd))
2385 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2389 filename = bfd_get_filename (ibfd);
2390 if (!bfd_close (ibfd))
2393 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2397 /* Delete all the files that we opened. */
2398 for (l = list; l != NULL; l = l->next)
2400 if (l->obfd == NULL)
2404 bfd_close (l->obfd);
2412 set_long_section_mode (bfd *output_bfd, bfd *input_bfd, enum long_section_name_handling style)
2414 /* This is only relevant to Coff targets. */
2415 if (bfd_get_flavour (output_bfd) == bfd_target_coff_flavour)
2418 && bfd_get_flavour (input_bfd) == bfd_target_coff_flavour)
2419 style = bfd_coff_long_section_names (input_bfd) ? ENABLE : DISABLE;
2420 bfd_coff_set_long_section_names (output_bfd, style != DISABLE);
2424 /* The top-level control. */
2427 copy_file (const char *input_filename, const char *output_filename,
2428 const char *input_target, const char *output_target,
2429 const bfd_arch_info_type *input_arch)
2432 char **obj_matching;
2433 char **core_matching;
2434 off_t size = get_file_size (input_filename);
2439 non_fatal (_("error: the input file '%s' is empty"),
2445 /* To allow us to do "strip *" without dying on the first
2446 non-object file, failures are nonfatal. */
2447 ibfd = bfd_openr (input_filename, input_target);
2450 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2455 switch (do_debug_sections)
2458 ibfd->flags |= BFD_COMPRESS;
2461 ibfd->flags |= BFD_DECOMPRESS;
2467 if (bfd_check_format (ibfd, bfd_archive))
2469 bfd_boolean force_output_target;
2472 /* bfd_get_target does not return the correct value until
2473 bfd_check_format succeeds. */
2474 if (output_target == NULL)
2476 output_target = bfd_get_target (ibfd);
2477 force_output_target = FALSE;
2480 force_output_target = TRUE;
2482 obfd = bfd_openw (output_filename, output_target);
2485 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2489 /* This is a no-op on non-Coff targets. */
2490 set_long_section_mode (obfd, ibfd, long_section_names);
2492 copy_archive (ibfd, obfd, output_target, force_output_target, input_arch);
2494 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
2499 /* bfd_get_target does not return the correct value until
2500 bfd_check_format succeeds. */
2501 if (output_target == NULL)
2502 output_target = bfd_get_target (ibfd);
2504 obfd = bfd_openw (output_filename, output_target);
2507 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2511 /* This is a no-op on non-Coff targets. */
2512 set_long_section_mode (obfd, ibfd, long_section_names);
2514 if (! copy_object (ibfd, obfd, input_arch))
2517 if (!bfd_close (obfd))
2520 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2524 if (!bfd_close (ibfd))
2527 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2533 bfd_error_type obj_error = bfd_get_error ();
2534 bfd_error_type core_error;
2536 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2538 /* This probably can't happen.. */
2539 if (obj_error == bfd_error_file_ambiguously_recognized)
2540 free (obj_matching);
2544 core_error = bfd_get_error ();
2545 /* Report the object error in preference to the core error. */
2546 if (obj_error != core_error)
2547 bfd_set_error (obj_error);
2549 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2551 if (obj_error == bfd_error_file_ambiguously_recognized)
2553 list_matching_formats (obj_matching);
2554 free (obj_matching);
2556 if (core_error == bfd_error_file_ambiguously_recognized)
2558 list_matching_formats (core_matching);
2559 free (core_matching);
2566 /* Add a name to the section renaming list. */
2569 add_section_rename (const char * old_name, const char * new_name,
2572 section_rename * srename;
2574 /* Check for conflicts first. */
2575 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2576 if (strcmp (srename->old_name, old_name) == 0)
2578 /* Silently ignore duplicate definitions. */
2579 if (strcmp (srename->new_name, new_name) == 0
2580 && srename->flags == flags)
2583 fatal (_("Multiple renames of section %s"), old_name);
2586 srename = (section_rename *) xmalloc (sizeof (* srename));
2588 srename->old_name = old_name;
2589 srename->new_name = new_name;
2590 srename->flags = flags;
2591 srename->next = section_rename_list;
2593 section_rename_list = srename;
2596 /* Check the section rename list for a new name of the input section
2597 ISECTION. Return the new name if one is found.
2598 Also set RETURNED_FLAGS to the flags to be used for this section. */
2601 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2602 flagword * returned_flags)
2604 const char * old_name = bfd_section_name (ibfd, isection);
2605 section_rename * srename;
2607 /* Default to using the flags of the input section. */
2608 * returned_flags = bfd_get_section_flags (ibfd, isection);
2610 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2611 if (strcmp (srename->old_name, old_name) == 0)
2613 if (srename->flags != (flagword) -1)
2614 * returned_flags = srename->flags;
2616 return srename->new_name;
2622 /* Once each of the sections is copied, we may still need to do some
2623 finalization work for private section headers. Do that here. */
2626 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2628 /* Allow the BFD backend to copy any private data it understands
2629 from the input section to the output section. */
2630 if (! bfd_copy_private_header_data (ibfd, obfd))
2633 bfd_nonfatal_message (NULL, ibfd, NULL,
2634 _("error in private header data"));
2638 /* All went well. */
2642 /* Create a section in OBFD with the same
2643 name and attributes as ISECTION in IBFD. */
2646 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2648 bfd *obfd = (bfd *) obfdarg;
2649 struct section_list *p;
2657 char *prefix = NULL;
2658 bfd_boolean make_nobits;
2660 if (is_strip_section (ibfd, isection))
2663 /* Get the, possibly new, name of the output section. */
2664 name = find_section_rename (ibfd, isection, & flags);
2666 /* Prefix sections. */
2667 if ((prefix_alloc_sections_string)
2668 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2669 prefix = prefix_alloc_sections_string;
2670 else if (prefix_sections_string)
2671 prefix = prefix_sections_string;
2677 n = (char *) xmalloc (strlen (prefix) + strlen (name) + 1);
2683 make_nobits = FALSE;
2685 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
2686 SECTION_CONTEXT_SET_FLAGS);
2688 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2689 else if (strip_symbols == STRIP_NONDEBUG
2690 && (flags & (SEC_ALLOC | SEC_GROUP)) != 0
2691 && !(ibfd->xvec->flavour == bfd_target_elf_flavour
2692 && elf_section_type (isection) == SHT_NOTE))
2694 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
2695 if (obfd->xvec->flavour == bfd_target_elf_flavour)
2699 /* Twiddle the input section flags so that it seems to
2700 elf.c:copy_private_bfd_data that section flags have not
2701 changed between input and output sections. This hack
2702 prevents wholesale rewriting of the program headers. */
2703 isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
2707 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
2709 if (osection == NULL)
2711 err = _("failed to create output section");
2716 elf_section_type (osection) = SHT_NOBITS;
2718 size = bfd_section_size (ibfd, isection);
2720 size = (size + interleave - 1) / interleave * copy_width;
2721 else if (extract_symbol)
2723 if (! bfd_set_section_size (obfd, osection, size))
2725 err = _("failed to set size");
2729 vma = bfd_section_vma (ibfd, isection);
2730 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
2731 SECTION_CONTEXT_ALTER_VMA | SECTION_CONTEXT_SET_VMA);
2734 if (p->context & SECTION_CONTEXT_SET_VMA)
2740 vma += change_section_address;
2742 if (! bfd_set_section_vma (obfd, osection, vma))
2744 err = _("failed to set vma");
2748 lma = isection->lma;
2749 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
2750 SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_SET_LMA);
2753 if (p->context & SECTION_CONTEXT_ALTER_LMA)
2759 lma += change_section_address;
2761 osection->lma = lma;
2763 /* FIXME: This is probably not enough. If we change the LMA we
2764 may have to recompute the header for the file as well. */
2765 if (!bfd_set_section_alignment (obfd,
2767 bfd_section_alignment (ibfd, isection)))
2769 err = _("failed to set alignment");
2773 /* Copy merge entity size. */
2774 osection->entsize = isection->entsize;
2776 /* This used to be mangle_section; we do here to avoid using
2777 bfd_get_section_by_name since some formats allow multiple
2778 sections with the same name. */
2779 isection->output_section = osection;
2780 isection->output_offset = 0;
2782 /* Do not copy backend data if --extract-symbol is passed; anything
2783 that needs to look at the section contents will fail. */
2787 if ((isection->flags & SEC_GROUP) != 0)
2789 asymbol *gsym = group_signature (isection);
2793 gsym->flags |= BSF_KEEP;
2794 if (ibfd->xvec->flavour == bfd_target_elf_flavour)
2795 elf_group_id (isection) = gsym;
2799 /* Allow the BFD backend to copy any private data it understands
2800 from the input section to the output section. */
2801 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
2803 err = _("failed to copy private data");
2807 /* All went well. */
2812 bfd_nonfatal_message (NULL, obfd, osection, err);
2815 /* Return TRUE if input section ISECTION should be skipped. */
2818 skip_section (bfd *ibfd, sec_ptr isection)
2824 /* If we have already failed earlier on,
2825 do not keep on generating complaints now. */
2832 if (is_strip_section (ibfd, isection))
2835 flags = bfd_get_section_flags (ibfd, isection);
2836 if ((flags & SEC_GROUP) != 0)
2839 osection = isection->output_section;
2840 size = bfd_get_section_size (isection);
2842 if (size == 0 || osection == 0)
2848 /* Copy relocations in input section ISECTION of IBFD to an output
2849 section with the same name in OBFDARG. If stripping then don't
2850 copy any relocation info. */
2853 copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2855 bfd *obfd = (bfd *) obfdarg;
2861 if (skip_section (ibfd, isection))
2864 osection = isection->output_section;
2866 /* Core files and DWO files do not need to be relocated. */
2867 if (bfd_get_format (obfd) == bfd_core || strip_symbols == STRIP_NONDWO)
2871 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2875 /* Do not complain if the target does not support relocations. */
2876 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2881 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
2889 bfd_set_reloc (obfd, osection, NULL, 0);
2890 osection->flags &= ~SEC_RELOC;
2894 relpp = (arelent **) xmalloc (relsize);
2895 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2899 bfd_nonfatal_message (NULL, ibfd, isection,
2900 _("relocation count is negative"));
2904 if (strip_symbols == STRIP_ALL)
2906 /* Remove relocations which are not in
2907 keep_strip_specific_list. */
2908 arelent **temp_relpp;
2909 long temp_relcount = 0;
2912 temp_relpp = (arelent **) xmalloc (relsize);
2913 for (i = 0; i < relcount; i++)
2914 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2915 keep_specific_htab))
2916 temp_relpp [temp_relcount++] = relpp [i];
2917 relcount = temp_relcount;
2922 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
2925 osection->flags &= ~SEC_RELOC;
2931 /* Copy the data of input section ISECTION of IBFD
2932 to an output section with the same name in OBFD. */
2935 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2937 bfd *obfd = (bfd *) obfdarg;
2938 struct section_list *p;
2942 if (skip_section (ibfd, isection))
2945 osection = isection->output_section;
2946 size = bfd_get_section_size (isection);
2948 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
2949 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
2951 bfd_byte *memhunk = NULL;
2953 if (!bfd_get_full_section_contents (ibfd, isection, &memhunk))
2956 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
2962 /* We don't handle leftover bytes (too many possible behaviors,
2963 and we don't know what the user wants). The section length
2964 must be a multiple of the number of bytes to swap. */
2965 if ((size % reverse_bytes) == 0)
2970 for (i = 0; i < size; i += reverse_bytes)
2971 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
2973 bfd_byte *m = (bfd_byte *) memhunk;
2976 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
2977 m[(i + reverse_bytes) - (j + 1)] = b;
2981 /* User must pad the section up in order to do this. */
2982 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
2983 bfd_section_name (ibfd, isection), reverse_bytes);
2988 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2989 char *from = (char *) memhunk + copy_byte;
2990 char *to = (char *) memhunk;
2991 char *end = (char *) memhunk + size;
2994 for (; from < end; from += interleave)
2995 for (i = 0; i < copy_width; i++)
2997 if (&from[i] >= end)
3002 size = (size + interleave - 1 - copy_byte) / interleave * copy_width;
3003 osection->lma /= interleave;
3006 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
3009 bfd_nonfatal_message (NULL, obfd, osection, NULL);
3014 else if ((p = find_section_list (bfd_get_section_name (ibfd, isection),
3015 FALSE, SECTION_CONTEXT_SET_FLAGS)) != NULL
3016 && (p->flags & SEC_HAS_CONTENTS) != 0)
3018 void *memhunk = xmalloc (size);
3020 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3021 flag--they can just remove the section entirely and add it
3022 back again. However, we do permit them to turn on the
3023 SEC_HAS_CONTENTS flag, and take it to mean that the section
3024 contents should be zeroed out. */
3026 memset (memhunk, 0, size);
3027 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
3030 bfd_nonfatal_message (NULL, obfd, osection, NULL);
3037 /* Get all the sections. This is used when --gap-fill or --pad-to is
3041 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
3043 asection ***secppp = (asection ***) secppparg;
3045 **secppp = osection;
3049 /* Sort sections by VMA. This is called via qsort, and is used when
3050 --gap-fill or --pad-to is used. We force non loadable or empty
3051 sections to the front, where they are easier to ignore. */
3054 compare_section_lma (const void *arg1, const void *arg2)
3056 const asection *const *sec1 = (const asection * const *) arg1;
3057 const asection *const *sec2 = (const asection * const *) arg2;
3058 flagword flags1, flags2;
3060 /* Sort non loadable sections to the front. */
3061 flags1 = (*sec1)->flags;
3062 flags2 = (*sec2)->flags;
3063 if ((flags1 & SEC_HAS_CONTENTS) == 0
3064 || (flags1 & SEC_LOAD) == 0)
3066 if ((flags2 & SEC_HAS_CONTENTS) != 0
3067 && (flags2 & SEC_LOAD) != 0)
3072 if ((flags2 & SEC_HAS_CONTENTS) == 0
3073 || (flags2 & SEC_LOAD) == 0)
3077 /* Sort sections by LMA. */
3078 if ((*sec1)->lma > (*sec2)->lma)
3080 else if ((*sec1)->lma < (*sec2)->lma)
3083 /* Sort sections with the same LMA by size. */
3084 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
3086 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
3092 /* Mark all the symbols which will be used in output relocations with
3093 the BSF_KEEP flag so that those symbols will not be stripped.
3095 Ignore relocations which will not appear in the output file. */
3098 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
3100 asymbol **symbols = (asymbol **) symbolsarg;
3105 /* Ignore an input section with no corresponding output section. */
3106 if (isection->output_section == NULL)
3109 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
3112 /* Do not complain if the target does not support relocations. */
3113 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
3115 bfd_fatal (bfd_get_filename (ibfd));
3121 relpp = (arelent **) xmalloc (relsize);
3122 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
3124 bfd_fatal (bfd_get_filename (ibfd));
3126 /* Examine each symbol used in a relocation. If it's not one of the
3127 special bfd section symbols, then mark it with BSF_KEEP. */
3128 for (i = 0; i < relcount; i++)
3130 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
3131 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
3132 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
3133 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
3140 /* Write out debugging information. */
3143 write_debugging_info (bfd *obfd, void *dhandle,
3144 long *symcountp ATTRIBUTE_UNUSED,
3145 asymbol ***symppp ATTRIBUTE_UNUSED)
3147 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
3148 return write_ieee_debugging_info (obfd, dhandle);
3150 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
3151 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
3153 bfd_byte *syms, *strings;
3154 bfd_size_type symsize, stringsize;
3155 asection *stabsec, *stabstrsec;
3158 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
3163 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
3164 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
3165 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
3167 || stabstrsec == NULL
3168 || ! bfd_set_section_size (obfd, stabsec, symsize)
3169 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
3170 || ! bfd_set_section_alignment (obfd, stabsec, 2)
3171 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
3173 bfd_nonfatal_message (NULL, obfd, NULL,
3174 _("can't create debugging section"));
3178 /* We can get away with setting the section contents now because
3179 the next thing the caller is going to do is copy over the
3180 real sections. We may someday have to split the contents
3181 setting out of this function. */
3182 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
3183 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
3186 bfd_nonfatal_message (NULL, obfd, NULL,
3187 _("can't set debugging section contents"));
3194 bfd_nonfatal_message (NULL, obfd, NULL,
3195 _("don't know how to write debugging information for %s"),
3196 bfd_get_target (obfd));
3200 /* If neither -D nor -U was specified explicitly,
3201 then use the configured default. */
3203 default_deterministic (void)
3205 if (deterministic < 0)
3206 deterministic = DEFAULT_AR_DETERMINISTIC;
3210 strip_main (int argc, char *argv[])
3212 char *input_target = NULL;
3213 char *output_target = NULL;
3214 bfd_boolean show_version = FALSE;
3215 bfd_boolean formats_info = FALSE;
3218 char *output_file = NULL;
3220 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
3221 strip_options, (int *) 0)) != EOF)
3226 input_target = optarg;
3229 output_target = optarg;
3232 input_target = output_target = optarg;
3235 find_section_list (optarg, TRUE, SECTION_CONTEXT_REMOVE);
3236 sections_removed = TRUE;
3239 strip_symbols = STRIP_ALL;
3243 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3244 strip_symbols = STRIP_DEBUG;
3246 case OPTION_STRIP_DWO:
3247 strip_symbols = STRIP_DWO;
3249 case OPTION_STRIP_UNNEEDED:
3250 strip_symbols = STRIP_UNNEEDED;
3253 add_specific_symbol (optarg, keep_specific_htab);
3256 add_specific_symbol (optarg, strip_specific_htab);
3259 output_file = optarg;
3262 preserve_dates = TRUE;
3265 deterministic = TRUE;
3268 deterministic = FALSE;
3271 discard_locals = LOCALS_ALL;
3274 discard_locals = LOCALS_START_L;
3280 show_version = TRUE;
3282 case OPTION_FORMATS_INFO:
3283 formats_info = TRUE;
3285 case OPTION_ONLY_KEEP_DEBUG:
3286 strip_symbols = STRIP_NONDEBUG;
3288 case OPTION_KEEP_FILE_SYMBOLS:
3289 keep_file_symbols = 1;
3292 /* We've been given a long option. */
3299 strip_usage (stdout, 0);
3301 strip_usage (stderr, 1);
3312 print_version ("strip");
3314 default_deterministic ();
3316 /* Default is to strip all symbols. */
3317 if (strip_symbols == STRIP_UNDEF
3318 && discard_locals == LOCALS_UNDEF
3319 && htab_elements (strip_specific_htab) == 0)
3320 strip_symbols = STRIP_ALL;
3322 if (output_target == NULL)
3323 output_target = input_target;
3327 || (output_file != NULL && (i + 1) < argc))
3328 strip_usage (stderr, 1);
3330 for (; i < argc; i++)
3332 int hold_status = status;
3333 struct stat statbuf;
3336 if (get_file_size (argv[i]) < 1)
3343 /* No need to check the return value of stat().
3344 It has already been checked in get_file_size(). */
3345 stat (argv[i], &statbuf);
3347 if (output_file == NULL
3348 || filename_cmp (argv[i], output_file) == 0)
3349 tmpname = make_tempname (argv[i]);
3351 tmpname = output_file;
3353 if (tmpname == NULL)
3355 bfd_nonfatal_message (argv[i], NULL, NULL,
3356 _("could not create temporary file to hold stripped copy"));
3362 copy_file (argv[i], tmpname, input_target, output_target, NULL);
3366 set_times (tmpname, &statbuf);
3367 if (output_file != tmpname)
3368 status = (smart_rename (tmpname,
3369 output_file ? output_file : argv[i],
3370 preserve_dates) != 0);
3372 status = hold_status;
3375 unlink_if_ordinary (tmpname);
3376 if (output_file != tmpname)
3383 /* Set up PE subsystem. */
3386 set_pe_subsystem (const char *s)
3388 const char *version, *subsystem;
3398 { "native", 0, IMAGE_SUBSYSTEM_NATIVE },
3399 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI },
3400 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI },
3401 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI },
3402 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI },
3403 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION },
3404 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER },
3405 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER },
3406 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER },
3407 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX }
3413 /* Check for the presence of a version number. */
3414 version = strchr (s, ':');
3415 if (version == NULL)
3419 int len = version - s;
3423 version = copy + 1 + len;
3424 pe_major_subsystem_version = strtoul (version, ©, 0);
3426 pe_minor_subsystem_version = strtoul (copy + 1, ©, 0);
3428 non_fatal (_("%s: bad version in PE subsystem"), s);
3431 /* Check for numeric subsystem. */
3432 value = (short) strtol (subsystem, ©, 0);
3435 for (i = 0; i < ARRAY_SIZE (v); i++)
3436 if (v[i].value == value)
3438 pe_subsystem = value;
3439 set_def = v[i].set_def;
3445 /* Search for subsystem by name. */
3446 for (i = 0; i < ARRAY_SIZE (v); i++)
3447 if (strcmp (subsystem, v[i].name) == 0)
3449 pe_subsystem = v[i].value;
3450 set_def = v[i].set_def;
3458 fatal (_("unknown PE subsystem: %s"), s);
3463 if (pe_file_alignment == (bfd_vma) -1)
3464 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
3465 if (pe_section_alignment == (bfd_vma) -1)
3466 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
3470 free ((char *) subsystem);
3473 /* Convert EFI target to PEI target. */
3476 convert_efi_target (char *efi)
3482 if (strcmp (efi + 4, "ia32") == 0)
3484 /* Change ia32 to i386. */
3489 else if (strcmp (efi + 4, "x86_64") == 0)
3491 /* Change x86_64 to x86-64. */
3497 copy_main (int argc, char *argv[])
3499 char *input_filename = NULL;
3500 char *output_filename = NULL;
3502 char *input_target = NULL;
3503 char *output_target = NULL;
3504 bfd_boolean show_version = FALSE;
3505 bfd_boolean change_warn = TRUE;
3506 bfd_boolean formats_info = FALSE;
3508 struct stat statbuf;
3509 const bfd_arch_info_type *input_arch = NULL;
3511 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
3512 copy_options, (int *) 0)) != EOF)
3517 copy_byte = atoi (optarg);
3519 fatal (_("byte number must be non-negative"));
3523 input_arch = bfd_scan_arch (optarg);
3524 if (input_arch == NULL)
3525 fatal (_("architecture %s unknown"), optarg);
3531 interleave = atoi (optarg);
3533 fatal (_("interleave must be positive"));
3539 case OPTION_INTERLEAVE_WIDTH:
3540 copy_width = atoi (optarg);
3542 fatal(_("interleave width must be positive"));
3546 case 's': /* "source" - 'I' is preferred */
3547 input_target = optarg;
3551 case 'd': /* "destination" - 'O' is preferred */
3552 output_target = optarg;
3556 input_target = output_target = optarg;
3560 find_section_list (optarg, TRUE, SECTION_CONTEXT_COPY);
3561 sections_copied = TRUE;
3565 find_section_list (optarg, TRUE, SECTION_CONTEXT_REMOVE);
3566 sections_removed = TRUE;
3570 strip_symbols = STRIP_ALL;
3574 strip_symbols = STRIP_DEBUG;
3577 case OPTION_STRIP_DWO:
3578 strip_symbols = STRIP_DWO;
3581 case OPTION_STRIP_UNNEEDED:
3582 strip_symbols = STRIP_UNNEEDED;
3585 case OPTION_ONLY_KEEP_DEBUG:
3586 strip_symbols = STRIP_NONDEBUG;
3589 case OPTION_KEEP_FILE_SYMBOLS:
3590 keep_file_symbols = 1;
3593 case OPTION_ADD_GNU_DEBUGLINK:
3594 long_section_names = ENABLE ;
3595 gnu_debuglink_filename = optarg;
3599 add_specific_symbol (optarg, keep_specific_htab);
3603 add_specific_symbol (optarg, strip_specific_htab);
3606 case OPTION_STRIP_UNNEEDED_SYMBOL:
3607 add_specific_symbol (optarg, strip_unneeded_htab);
3611 add_specific_symbol (optarg, localize_specific_htab);
3614 case OPTION_GLOBALIZE_SYMBOL:
3615 add_specific_symbol (optarg, globalize_specific_htab);
3619 add_specific_symbol (optarg, keepglobal_specific_htab);
3623 add_specific_symbol (optarg, weaken_specific_htab);
3627 preserve_dates = TRUE;
3631 deterministic = TRUE;
3635 deterministic = FALSE;
3643 discard_locals = LOCALS_ALL;
3647 discard_locals = LOCALS_START_L;
3655 show_version = TRUE;
3658 case OPTION_FORMATS_INFO:
3659 formats_info = TRUE;
3666 case OPTION_ADD_SECTION:
3670 struct section_add *pa;
3673 s = strchr (optarg, '=');
3676 fatal (_("bad format for %s"), "--add-section");
3678 pa = (struct section_add *) xmalloc (sizeof (struct section_add));
3679 pa->name = xstrndup (optarg, s - optarg);
3680 pa->filename = s + 1;
3682 /* We don't use get_file_size so that we can do
3683 --add-section .note.GNU_stack=/dev/null
3684 get_file_size doesn't work on /dev/null. */
3686 f = fopen (pa->filename, FOPEN_RB);
3688 fatal (_("cannot open: %s: %s"),
3689 pa->filename, strerror (errno));
3693 pa->contents = (bfd_byte *) xmalloc (alloc);
3701 pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc);
3704 got = fread (pa->contents + off, 1, alloc - off, f);
3706 fatal (_("%s: fread failed"), pa->filename);
3715 pa->next = add_sections;
3720 case OPTION_DUMP_SECTION:
3723 struct section_add *pa;
3725 s = strchr (optarg, '=');
3728 fatal (_("bad format for %s"), "--dump-section");
3730 pa = (struct section_add *) xmalloc (sizeof * pa);
3731 pa->name = xstrndup (optarg, s - optarg);
3732 pa->filename = s + 1;
3733 pa->next = dump_sections;
3734 pa->contents = NULL;
3739 case OPTION_CHANGE_START:
3740 change_start = parse_vma (optarg, "--change-start");
3743 case OPTION_CHANGE_SECTION_ADDRESS:
3744 case OPTION_CHANGE_SECTION_LMA:
3745 case OPTION_CHANGE_SECTION_VMA:
3747 struct section_list * p;
3748 unsigned int context = 0;
3752 char *option = NULL;
3757 case OPTION_CHANGE_SECTION_ADDRESS:
3758 option = "--change-section-address";
3759 context = SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_ALTER_VMA;
3761 case OPTION_CHANGE_SECTION_LMA:
3762 option = "--change-section-lma";
3763 context = SECTION_CONTEXT_ALTER_LMA;
3765 case OPTION_CHANGE_SECTION_VMA:
3766 option = "--change-section-vma";
3767 context = SECTION_CONTEXT_ALTER_VMA;
3771 s = strchr (optarg, '=');
3774 s = strchr (optarg, '+');
3777 s = strchr (optarg, '-');
3779 fatal (_("bad format for %s"), option);
3784 /* Correct the context. */
3787 case OPTION_CHANGE_SECTION_ADDRESS:
3788 context = SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_SET_VMA;
3790 case OPTION_CHANGE_SECTION_LMA:
3791 context = SECTION_CONTEXT_SET_LMA;
3793 case OPTION_CHANGE_SECTION_VMA:
3794 context = SECTION_CONTEXT_SET_VMA;
3800 name = (char *) xmalloc (len + 1);
3801 strncpy (name, optarg, len);
3804 p = find_section_list (name, TRUE, context);
3806 val = parse_vma (s + 1, option);
3812 case OPTION_CHANGE_SECTION_ADDRESS:
3816 case OPTION_CHANGE_SECTION_LMA:
3820 case OPTION_CHANGE_SECTION_VMA:
3827 case OPTION_CHANGE_ADDRESSES:
3828 change_section_address = parse_vma (optarg, "--change-addresses");
3829 change_start = change_section_address;
3832 case OPTION_CHANGE_WARNINGS:
3836 case OPTION_CHANGE_LEADING_CHAR:
3837 change_leading_char = TRUE;
3840 case OPTION_COMPRESS_DEBUG_SECTIONS:
3841 do_debug_sections = compress;
3844 case OPTION_DEBUGGING:
3845 convert_debugging = TRUE;
3848 case OPTION_DECOMPRESS_DEBUG_SECTIONS:
3849 do_debug_sections = decompress;
3852 case OPTION_GAP_FILL:
3854 bfd_vma gap_fill_vma;
3856 gap_fill_vma = parse_vma (optarg, "--gap-fill");
3857 gap_fill = (bfd_byte) gap_fill_vma;
3858 if ((bfd_vma) gap_fill != gap_fill_vma)
3862 sprintf_vma (buff, gap_fill_vma);
3864 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3867 gap_fill_set = TRUE;
3871 case OPTION_NO_CHANGE_WARNINGS:
3872 change_warn = FALSE;
3876 pad_to = parse_vma (optarg, "--pad-to");
3880 case OPTION_REMOVE_LEADING_CHAR:
3881 remove_leading_char = TRUE;
3884 case OPTION_REDEFINE_SYM:
3886 /* Push this redefinition onto redefine_symbol_list. */
3890 const char *nextarg;
3891 char *source, *target;
3893 s = strchr (optarg, '=');
3895 fatal (_("bad format for %s"), "--redefine-sym");
3898 source = (char *) xmalloc (len + 1);
3899 strncpy (source, optarg, len);
3903 len = strlen (nextarg);
3904 target = (char *) xmalloc (len + 1);
3905 strcpy (target, nextarg);
3907 redefine_list_append ("--redefine-sym", source, target);
3914 case OPTION_REDEFINE_SYMS:
3915 add_redefine_syms_file (optarg);
3918 case OPTION_SET_SECTION_FLAGS:
3920 struct section_list *p;
3925 s = strchr (optarg, '=');
3927 fatal (_("bad format for %s"), "--set-section-flags");
3930 name = (char *) xmalloc (len + 1);
3931 strncpy (name, optarg, len);
3934 p = find_section_list (name, TRUE, SECTION_CONTEXT_SET_FLAGS);
3936 p->flags = parse_flags (s + 1);
3940 case OPTION_RENAME_SECTION:
3943 const char *eq, *fl;
3948 eq = strchr (optarg, '=');
3950 fatal (_("bad format for %s"), "--rename-section");
3954 fatal (_("bad format for %s"), "--rename-section");
3956 old_name = (char *) xmalloc (len + 1);
3957 strncpy (old_name, optarg, len);
3961 fl = strchr (eq, ',');
3964 flags = parse_flags (fl + 1);
3974 fatal (_("bad format for %s"), "--rename-section");
3976 new_name = (char *) xmalloc (len + 1);
3977 strncpy (new_name, eq, len);
3980 add_section_rename (old_name, new_name, flags);
3984 case OPTION_SET_START:
3985 set_start = parse_vma (optarg, "--set-start");
3986 set_start_set = TRUE;
3989 case OPTION_SREC_LEN:
3990 Chunk = parse_vma (optarg, "--srec-len");
3993 case OPTION_SREC_FORCES3:
3997 case OPTION_STRIP_SYMBOLS:
3998 add_specific_symbols (optarg, strip_specific_htab);
4001 case OPTION_STRIP_UNNEEDED_SYMBOLS:
4002 add_specific_symbols (optarg, strip_unneeded_htab);
4005 case OPTION_KEEP_SYMBOLS:
4006 add_specific_symbols (optarg, keep_specific_htab);
4009 case OPTION_LOCALIZE_HIDDEN:
4010 localize_hidden = TRUE;
4013 case OPTION_LOCALIZE_SYMBOLS:
4014 add_specific_symbols (optarg, localize_specific_htab);
4017 case OPTION_LONG_SECTION_NAMES:
4018 if (!strcmp ("enable", optarg))
4019 long_section_names = ENABLE;
4020 else if (!strcmp ("disable", optarg))
4021 long_section_names = DISABLE;
4022 else if (!strcmp ("keep", optarg))
4023 long_section_names = KEEP;
4025 fatal (_("unknown long section names option '%s'"), optarg);
4028 case OPTION_GLOBALIZE_SYMBOLS:
4029 add_specific_symbols (optarg, globalize_specific_htab);
4032 case OPTION_KEEPGLOBAL_SYMBOLS:
4033 add_specific_symbols (optarg, keepglobal_specific_htab);
4036 case OPTION_WEAKEN_SYMBOLS:
4037 add_specific_symbols (optarg, weaken_specific_htab);
4040 case OPTION_ALT_MACH_CODE:
4041 use_alt_mach_code = strtoul (optarg, NULL, 0);
4042 if (use_alt_mach_code == 0)
4043 fatal (_("unable to parse alternative machine code"));
4046 case OPTION_PREFIX_SYMBOLS:
4047 prefix_symbols_string = optarg;
4050 case OPTION_PREFIX_SECTIONS:
4051 prefix_sections_string = optarg;
4054 case OPTION_PREFIX_ALLOC_SECTIONS:
4055 prefix_alloc_sections_string = optarg;
4058 case OPTION_READONLY_TEXT:
4059 bfd_flags_to_set |= WP_TEXT;
4060 bfd_flags_to_clear &= ~WP_TEXT;
4063 case OPTION_WRITABLE_TEXT:
4064 bfd_flags_to_clear |= WP_TEXT;
4065 bfd_flags_to_set &= ~WP_TEXT;
4069 bfd_flags_to_set |= D_PAGED;
4070 bfd_flags_to_clear &= ~D_PAGED;
4074 bfd_flags_to_clear |= D_PAGED;
4075 bfd_flags_to_set &= ~D_PAGED;
4078 case OPTION_EXTRACT_DWO:
4079 strip_symbols = STRIP_NONDWO;
4082 case OPTION_EXTRACT_SYMBOL:
4083 extract_symbol = TRUE;
4086 case OPTION_REVERSE_BYTES:
4088 int prev = reverse_bytes;
4090 reverse_bytes = atoi (optarg);
4091 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
4092 fatal (_("number of bytes to reverse must be positive and even"));
4094 if (prev && prev != reverse_bytes)
4095 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4100 case OPTION_FILE_ALIGNMENT:
4101 pe_file_alignment = parse_vma (optarg, "--file-alignment");
4107 pe_heap_reserve = strtoul (optarg, &end, 0);
4109 || (*end != '.' && *end != '\0'))
4110 non_fatal (_("%s: invalid reserve value for --heap"),
4112 else if (*end != '\0')
4114 pe_heap_commit = strtoul (end + 1, &end, 0);
4116 non_fatal (_("%s: invalid commit value for --heap"),
4122 case OPTION_IMAGE_BASE:
4123 pe_image_base = parse_vma (optarg, "--image-base");
4126 case OPTION_SECTION_ALIGNMENT:
4127 pe_section_alignment = parse_vma (optarg,
4128 "--section-alignment");
4131 case OPTION_SUBSYSTEM:
4132 set_pe_subsystem (optarg);
4138 pe_stack_reserve = strtoul (optarg, &end, 0);
4140 || (*end != '.' && *end != '\0'))
4141 non_fatal (_("%s: invalid reserve value for --stack"),
4143 else if (*end != '\0')
4145 pe_stack_commit = strtoul (end + 1, &end, 0);
4147 non_fatal (_("%s: invalid commit value for --stack"),
4154 /* We've been given a long option. */
4159 copy_usage (stdout, 0);
4162 copy_usage (stderr, 1);
4173 print_version ("objcopy");
4175 if (interleave && copy_byte == -1)
4176 fatal (_("interleave start byte must be set with --byte"));
4178 if (copy_byte >= interleave)
4179 fatal (_("byte number must be less than interleave"));
4181 if (copy_width > interleave - copy_byte)
4182 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4184 if (optind == argc || optind + 2 < argc)
4185 copy_usage (stderr, 1);
4187 input_filename = argv[optind];
4188 if (optind + 1 < argc)
4189 output_filename = argv[optind + 1];
4191 default_deterministic ();
4193 /* Default is to strip no symbols. */
4194 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
4195 strip_symbols = STRIP_NONE;
4197 if (output_target == NULL)
4198 output_target = input_target;
4200 /* Convert input EFI target to PEI target. */
4201 if (input_target != NULL
4202 && strncmp (input_target, "efi-", 4) == 0)
4206 efi = xstrdup (output_target + 4);
4207 if (strncmp (efi, "bsdrv-", 6) == 0
4208 || strncmp (efi, "rtdrv-", 6) == 0)
4210 else if (strncmp (efi, "app-", 4) != 0)
4211 fatal (_("unknown input EFI target: %s"), input_target);
4214 convert_efi_target (efi);
4217 /* Convert output EFI target to PEI target. */
4218 if (output_target != NULL
4219 && strncmp (output_target, "efi-", 4) == 0)
4223 efi = xstrdup (output_target + 4);
4224 if (strncmp (efi, "app-", 4) == 0)
4226 if (pe_subsystem == -1)
4227 pe_subsystem = IMAGE_SUBSYSTEM_EFI_APPLICATION;
4229 else if (strncmp (efi, "bsdrv-", 6) == 0)
4231 if (pe_subsystem == -1)
4232 pe_subsystem = IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER;
4235 else if (strncmp (efi, "rtdrv-", 6) == 0)
4237 if (pe_subsystem == -1)
4238 pe_subsystem = IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER;
4242 fatal (_("unknown output EFI target: %s"), output_target);
4244 if (pe_file_alignment == (bfd_vma) -1)
4245 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
4246 if (pe_section_alignment == (bfd_vma) -1)
4247 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
4249 output_target = efi;
4250 convert_efi_target (efi);
4254 if (stat (input_filename, & statbuf) < 0)
4255 fatal (_("warning: could not locate '%s'. System error message: %s"),
4256 input_filename, strerror (errno));
4258 /* If there is no destination file, or the source and destination files
4259 are the same, then create a temp and rename the result into the input. */
4260 if (output_filename == NULL
4261 || filename_cmp (input_filename, output_filename) == 0)
4262 tmpname = make_tempname (input_filename);
4264 tmpname = output_filename;
4266 if (tmpname == NULL)
4267 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4268 input_filename, strerror (errno));
4270 copy_file (input_filename, tmpname, input_target, output_target, input_arch);
4274 set_times (tmpname, &statbuf);
4275 if (tmpname != output_filename)
4276 status = (smart_rename (tmpname, input_filename,
4277 preserve_dates) != 0);
4280 unlink_if_ordinary (tmpname);
4284 struct section_list *p;
4286 for (p = change_sections; p != NULL; p = p->next)
4290 if (p->context & (SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA))
4294 sprintf_vma (buff, p->vma_val);
4296 /* xgettext:c-format */
4297 non_fatal (_("%s %s%c0x%s never used"),
4298 "--change-section-vma",
4300 p->context & SECTION_CONTEXT_SET_VMA ? '=' : '+',
4304 if (p->context & (SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA))
4308 sprintf_vma (buff, p->lma_val);
4310 /* xgettext:c-format */
4311 non_fatal (_("%s %s%c0x%s never used"),
4312 "--change-section-lma",
4314 p->context & SECTION_CONTEXT_SET_LMA ? '=' : '+',
4325 main (int argc, char *argv[])
4327 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4328 setlocale (LC_MESSAGES, "");
4330 #if defined (HAVE_SETLOCALE)
4331 setlocale (LC_CTYPE, "");
4333 bindtextdomain (PACKAGE, LOCALEDIR);
4334 textdomain (PACKAGE);
4336 program_name = argv[0];
4337 xmalloc_set_program_name (program_name);
4339 START_PROGRESS (program_name, 0);
4341 expandargv (&argc, &argv);
4343 strip_symbols = STRIP_UNDEF;
4344 discard_locals = LOCALS_UNDEF;
4347 set_default_bfd_target ();
4351 int i = strlen (program_name);
4352 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4353 /* Drop the .exe suffix, if any. */
4354 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
4357 program_name[i] = '\0';
4360 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
4363 create_symbol_htabs ();
4366 strip_main (argc, argv);
4368 copy_main (argc, argv);
4370 END_PROGRESS (program_name);