1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2017 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"
31 #include "coff/internal.h"
33 #include "safe-ctype.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 node includes symbol name mapping to support redefine_sym. */
66 struct addsym_node
*next
;
74 typedef struct section_rename
76 const char * old_name
;
77 const char * new_name
;
79 struct section_rename
* next
;
83 /* List of sections to be renamed. */
84 static section_rename
*section_rename_list
;
86 static asymbol
**isympp
= NULL
; /* Input symbols. */
87 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
89 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
90 static int copy_byte
= -1;
91 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
92 static int copy_width
= 1;
94 static bfd_boolean verbose
; /* Print file and target names. */
95 static bfd_boolean preserve_dates
; /* Preserve input file timestamp. */
96 static int deterministic
= -1; /* Enable deterministic archives. */
97 static int status
= 0; /* Exit status. */
99 static bfd_boolean merge_notes
= FALSE
; /* Merge note sections. */
100 static bfd_byte
* merged_notes
= NULL
; /* Contents on note section undergoing a merge. */
101 static bfd_size_type merged_size
= 0; /* New, smaller size of the merged note section. */
106 STRIP_NONE
, /* Don't strip. */
107 STRIP_DEBUG
, /* Strip all debugger symbols. */
108 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
109 STRIP_NONDEBUG
, /* Strip everything but debug info. */
110 STRIP_DWO
, /* Strip all DWO info. */
111 STRIP_NONDWO
, /* Strip everything but DWO info. */
112 STRIP_ALL
/* Strip all symbols. */
115 /* Which symbols to remove. */
116 static enum strip_action strip_symbols
= STRIP_UNDEF
;
121 LOCALS_START_L
, /* Discard locals starting with L. */
122 LOCALS_ALL
/* Discard all locals. */
125 /* Which local symbols to remove. Overrides STRIP_ALL. */
126 static enum locals_action discard_locals
;
128 /* Structure used to hold lists of sections and actions to take. */
131 struct section_list
* next
; /* Next section to change. */
132 const char * pattern
; /* Section name pattern. */
133 bfd_boolean used
; /* Whether this entry was used. */
135 unsigned int context
; /* What to do with matching sections. */
136 /* Flag bits used in the context field.
137 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
138 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
139 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
140 #define SECTION_CONTEXT_SET_VMA (1 << 2) /* Set the sections' VMA address. */
141 #define SECTION_CONTEXT_ALTER_VMA (1 << 3) /* Increment or decrement the section's VMA address. */
142 #define SECTION_CONTEXT_SET_LMA (1 << 4) /* Set the sections' LMA address. */
143 #define SECTION_CONTEXT_ALTER_LMA (1 << 5) /* Increment or decrement the section's LMA address. */
144 #define SECTION_CONTEXT_SET_FLAGS (1 << 6) /* Set the section's flags. */
145 #define SECTION_CONTEXT_REMOVE_RELOCS (1 << 7) /* Remove relocations for this section. */
147 bfd_vma vma_val
; /* Amount to change by or set to. */
148 bfd_vma lma_val
; /* Amount to change by or set to. */
149 flagword flags
; /* What to set the section flags to. */
152 static struct section_list
*change_sections
;
154 /* TRUE if some sections are to be removed. */
155 static bfd_boolean sections_removed
;
157 /* TRUE if only some sections are to be copied. */
158 static bfd_boolean sections_copied
;
160 /* Changes to the start address. */
161 static bfd_vma change_start
= 0;
162 static bfd_boolean set_start_set
= FALSE
;
163 static bfd_vma set_start
;
165 /* Changes to section addresses. */
166 static bfd_vma change_section_address
= 0;
168 /* Filling gaps between sections. */
169 static bfd_boolean gap_fill_set
= FALSE
;
170 static bfd_byte gap_fill
= 0;
172 /* Pad to a given address. */
173 static bfd_boolean pad_to_set
= FALSE
;
174 static bfd_vma pad_to
;
176 /* Use alternative machine code? */
177 static unsigned long use_alt_mach_code
= 0;
179 /* Output BFD flags user wants to set or clear */
180 static flagword bfd_flags_to_set
;
181 static flagword bfd_flags_to_clear
;
183 /* List of sections to add. */
186 /* Next section to add. */
187 struct section_add
*next
;
188 /* Name of section to add. */
190 /* Name of file holding section contents. */
191 const char *filename
;
194 /* Contents of file. */
196 /* BFD section, after it has been added. */
200 /* List of sections to add to the output BFD. */
201 static struct section_add
*add_sections
;
203 /* List of sections to update in the output BFD. */
204 static struct section_add
*update_sections
;
206 /* List of sections to dump from the output BFD. */
207 static struct section_add
*dump_sections
;
209 /* If non-NULL the argument to --add-gnu-debuglink.
210 This should be the filename to store in the .gnu_debuglink section. */
211 static const char * gnu_debuglink_filename
= NULL
;
213 /* Whether to convert debugging information. */
214 static bfd_boolean convert_debugging
= FALSE
;
216 /* Whether to compress/decompress DWARF debug sections. */
221 compress_zlib
= compress
| 1 << 1,
222 compress_gnu_zlib
= compress
| 1 << 2,
223 compress_gabi_zlib
= compress
| 1 << 3,
225 } do_debug_sections
= nothing
;
227 /* Whether to generate ELF common symbols with the STT_COMMON type. */
228 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
230 /* Whether to change the leading character in symbol names. */
231 static bfd_boolean change_leading_char
= FALSE
;
233 /* Whether to remove the leading character from global symbol names. */
234 static bfd_boolean remove_leading_char
= FALSE
;
236 /* Whether to permit wildcard in symbol comparison. */
237 static bfd_boolean wildcard
= FALSE
;
239 /* True if --localize-hidden is in effect. */
240 static bfd_boolean localize_hidden
= FALSE
;
242 /* List of symbols to strip, keep, localize, keep-global, weaken,
244 static htab_t strip_specific_htab
= NULL
;
245 static htab_t strip_unneeded_htab
= NULL
;
246 static htab_t keep_specific_htab
= NULL
;
247 static htab_t localize_specific_htab
= NULL
;
248 static htab_t globalize_specific_htab
= NULL
;
249 static htab_t keepglobal_specific_htab
= NULL
;
250 static htab_t weaken_specific_htab
= NULL
;
251 static htab_t redefine_specific_htab
= NULL
;
252 static htab_t redefine_specific_reverse_htab
= NULL
;
253 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
254 static int add_symbols
= 0;
256 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
257 static bfd_boolean weaken
= FALSE
;
259 /* If this is TRUE, we retain BSF_FILE symbols. */
260 static bfd_boolean keep_file_symbols
= FALSE
;
262 /* Prefix symbols/sections. */
263 static char *prefix_symbols_string
= 0;
264 static char *prefix_sections_string
= 0;
265 static char *prefix_alloc_sections_string
= 0;
267 /* True if --extract-symbol was passed on the command line. */
268 static bfd_boolean extract_symbol
= FALSE
;
270 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
271 of <reverse_bytes> bytes within each output section. */
272 static int reverse_bytes
= 0;
274 /* For Coff objects, we may want to allow or disallow long section names,
275 or preserve them where found in the inputs. Debug info relies on them. */
276 enum long_section_name_handling
283 /* The default long section handling mode is to preserve them.
284 This is also the only behaviour for 'strip'. */
285 static enum long_section_name_handling long_section_names
= KEEP
;
287 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
288 enum command_line_switch
290 OPTION_ADD_SECTION
=150,
291 OPTION_ADD_GNU_DEBUGLINK
,
293 OPTION_ALT_MACH_CODE
,
294 OPTION_CHANGE_ADDRESSES
,
295 OPTION_CHANGE_LEADING_CHAR
,
296 OPTION_CHANGE_SECTION_ADDRESS
,
297 OPTION_CHANGE_SECTION_LMA
,
298 OPTION_CHANGE_SECTION_VMA
,
300 OPTION_CHANGE_WARNINGS
,
301 OPTION_COMPRESS_DEBUG_SECTIONS
,
303 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
305 OPTION_ELF_STT_COMMON
,
307 OPTION_EXTRACT_SYMBOL
,
308 OPTION_FILE_ALIGNMENT
,
311 OPTION_GLOBALIZE_SYMBOL
,
312 OPTION_GLOBALIZE_SYMBOLS
,
316 OPTION_INTERLEAVE_WIDTH
,
317 OPTION_KEEPGLOBAL_SYMBOLS
,
318 OPTION_KEEP_FILE_SYMBOLS
,
320 OPTION_LOCALIZE_HIDDEN
,
321 OPTION_LOCALIZE_SYMBOLS
,
322 OPTION_LONG_SECTION_NAMES
,
324 OPTION_NO_MERGE_NOTES
,
325 OPTION_NO_CHANGE_WARNINGS
,
326 OPTION_ONLY_KEEP_DEBUG
,
328 OPTION_PREFIX_ALLOC_SECTIONS
,
329 OPTION_PREFIX_SECTIONS
,
330 OPTION_PREFIX_SYMBOLS
,
332 OPTION_READONLY_TEXT
,
334 OPTION_REDEFINE_SYMS
,
335 OPTION_REMOVE_LEADING_CHAR
,
336 OPTION_REMOVE_RELOCS
,
337 OPTION_RENAME_SECTION
,
338 OPTION_REVERSE_BYTES
,
339 OPTION_SECTION_ALIGNMENT
,
340 OPTION_SET_SECTION_FLAGS
,
346 OPTION_STRIP_SYMBOLS
,
347 OPTION_STRIP_UNNEEDED
,
348 OPTION_STRIP_UNNEEDED_SYMBOL
,
349 OPTION_STRIP_UNNEEDED_SYMBOLS
,
351 OPTION_UPDATE_SECTION
,
353 OPTION_WEAKEN_SYMBOLS
,
357 /* Options to handle if running as "strip". */
359 static struct option strip_options
[] =
361 {"disable-deterministic-archives", no_argument
, 0, 'U'},
362 {"discard-all", no_argument
, 0, 'x'},
363 {"discard-locals", no_argument
, 0, 'X'},
364 {"enable-deterministic-archives", no_argument
, 0, 'D'},
365 {"format", required_argument
, 0, 'F'}, /* Obsolete */
366 {"help", no_argument
, 0, 'h'},
367 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
368 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
369 {"input-target", required_argument
, 0, 'I'},
370 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
371 {"keep-symbol", required_argument
, 0, 'K'},
372 {"merge-notes", no_argument
, 0, 'M'},
373 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
374 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
375 {"output-file", required_argument
, 0, 'o'},
376 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
377 {"output-target", required_argument
, 0, 'O'},
378 {"preserve-dates", no_argument
, 0, 'p'},
379 {"remove-section", required_argument
, 0, 'R'},
380 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
381 {"strip-all", no_argument
, 0, 's'},
382 {"strip-debug", no_argument
, 0, 'S'},
383 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
384 {"strip-symbol", required_argument
, 0, 'N'},
385 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
386 {"target", required_argument
, 0, 'F'},
387 {"verbose", no_argument
, 0, 'v'},
388 {"version", no_argument
, 0, 'V'},
389 {"wildcard", no_argument
, 0, 'w'},
390 {0, no_argument
, 0, 0}
393 /* Options to handle if running as "objcopy". */
395 static struct option copy_options
[] =
397 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
398 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
399 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
400 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
401 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
402 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
403 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
404 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
405 {"binary-architecture", required_argument
, 0, 'B'},
406 {"byte", required_argument
, 0, 'b'},
407 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
408 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
409 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
410 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
411 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
412 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
413 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
414 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
415 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
416 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
417 {"disable-deterministic-archives", no_argument
, 0, 'U'},
418 {"discard-all", no_argument
, 0, 'x'},
419 {"discard-locals", no_argument
, 0, 'X'},
420 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
421 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
422 {"enable-deterministic-archives", no_argument
, 0, 'D'},
423 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
424 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
425 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
426 {"format", required_argument
, 0, 'F'}, /* Obsolete */
427 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
428 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
429 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
430 {"heap", required_argument
, 0, OPTION_HEAP
},
431 {"help", no_argument
, 0, 'h'},
432 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
433 {"impure", no_argument
, 0, OPTION_IMPURE
},
434 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
435 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
436 {"input-target", required_argument
, 0, 'I'},
437 {"interleave", optional_argument
, 0, 'i'},
438 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
439 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
440 {"keep-global-symbol", required_argument
, 0, 'G'},
441 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
442 {"keep-symbol", required_argument
, 0, 'K'},
443 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
444 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
445 {"localize-symbol", required_argument
, 0, 'L'},
446 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
447 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
448 {"merge-notes", no_argument
, 0, 'M'},
449 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
450 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
451 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
452 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
453 {"only-section", required_argument
, 0, 'j'},
454 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
455 {"output-target", required_argument
, 0, 'O'},
456 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
457 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
458 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
459 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
460 {"preserve-dates", no_argument
, 0, 'p'},
461 {"pure", no_argument
, 0, OPTION_PURE
},
462 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
463 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
464 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
465 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
466 {"remove-section", required_argument
, 0, 'R'},
467 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
468 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
469 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
470 {"section-alignment", required_argument
, 0, OPTION_SECTION_ALIGNMENT
},
471 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
472 {"set-start", required_argument
, 0, OPTION_SET_START
},
473 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
474 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
475 {"stack", required_argument
, 0, OPTION_STACK
},
476 {"strip-all", no_argument
, 0, 'S'},
477 {"strip-debug", no_argument
, 0, 'g'},
478 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
479 {"strip-symbol", required_argument
, 0, 'N'},
480 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
481 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
482 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
483 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
484 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
485 {"target", required_argument
, 0, 'F'},
486 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
487 {"verbose", no_argument
, 0, 'v'},
488 {"version", no_argument
, 0, 'V'},
489 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
490 {"weaken-symbol", required_argument
, 0, 'W'},
491 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
492 {"wildcard", no_argument
, 0, 'w'},
493 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
494 {0, no_argument
, 0, 0}
498 extern char *program_name
;
500 /* This flag distinguishes between strip and objcopy:
501 1 means this is 'strip'; 0 means this is 'objcopy'.
502 -1 means if we should use argv[0] to decide. */
505 /* The maximum length of an S record. This variable is defined in srec.c
506 and can be modified by the --srec-len parameter. */
507 extern unsigned int _bfd_srec_len
;
509 /* Restrict the generation of Srecords to type S3 only.
510 This variable is defined in bfd/srec.c and can be toggled
511 on by the --srec-forceS3 command line switch. */
512 extern bfd_boolean _bfd_srec_forceS3
;
514 /* Forward declarations. */
515 static void setup_section (bfd
*, asection
*, void *);
516 static void setup_bfd_headers (bfd
*, bfd
*);
517 static void copy_relocations_in_section (bfd
*, asection
*, void *);
518 static void copy_section (bfd
*, asection
*, void *);
519 static void get_sections (bfd
*, asection
*, void *);
520 static int compare_section_lma (const void *, const void *);
521 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
522 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
523 static const char *lookup_sym_redefinition (const char *);
524 static const char *find_section_rename (const char *, flagword
*);
526 ATTRIBUTE_NORETURN
static void
527 copy_usage (FILE *stream
, int exit_status
)
529 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
530 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
531 fprintf (stream
, _(" The options are:\n"));
532 fprintf (stream
, _("\
533 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
534 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
535 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
536 -F --target <bfdname> Set both input and output format to <bfdname>\n\
537 --debugging Convert debugging information, if possible\n\
538 -p --preserve-dates Copy modified/access timestamps to the output\n"));
539 if (DEFAULT_AR_DETERMINISTIC
)
540 fprintf (stream
, _("\
541 -D --enable-deterministic-archives\n\
542 Produce deterministic output when stripping archives (default)\n\
543 -U --disable-deterministic-archives\n\
544 Disable -D behavior\n"));
546 fprintf (stream
, _("\
547 -D --enable-deterministic-archives\n\
548 Produce deterministic output when stripping archives\n\
549 -U --disable-deterministic-archives\n\
550 Disable -D behavior (default)\n"));
551 fprintf (stream
, _("\
552 -j --only-section <name> Only copy section <name> into the output\n\
553 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
554 -R --remove-section <name> Remove section <name> from the output\n\
555 --remove-relocations <name> Remove relocations from section <name>\n\
556 -S --strip-all Remove all symbol and relocation information\n\
557 -g --strip-debug Remove all debugging symbols & sections\n\
558 --strip-dwo Remove all DWO sections\n\
559 --strip-unneeded Remove all symbols not needed by relocations\n\
560 -N --strip-symbol <name> Do not copy symbol <name>\n\
561 --strip-unneeded-symbol <name>\n\
562 Do not copy symbol <name> unless needed by\n\
564 --only-keep-debug Strip everything but the debug information\n\
565 --extract-dwo Copy only DWO sections\n\
566 --extract-symbol Remove section contents but keep symbols\n\
567 -K --keep-symbol <name> Do not strip symbol <name>\n\
568 --keep-file-symbols Do not strip file symbol(s)\n\
569 --localize-hidden Turn all ELF hidden symbols into locals\n\
570 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
571 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
572 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
573 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
574 --weaken Force all global symbols to be marked as weak\n\
575 -w --wildcard Permit wildcard in symbol comparison\n\
576 -x --discard-all Remove all non-global symbols\n\
577 -X --discard-locals Remove any compiler-generated symbols\n\
578 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
579 --interleave-width <number> Set N for --interleave\n\
580 -b --byte <num> Select byte <num> in every interleaved block\n\
581 --gap-fill <val> Fill gaps between sections with <val>\n\
582 --pad-to <addr> Pad the last section up to address <addr>\n\
583 --set-start <addr> Set the start address to <addr>\n\
584 {--change-start|--adjust-start} <incr>\n\
585 Add <incr> to the start address\n\
586 {--change-addresses|--adjust-vma} <incr>\n\
587 Add <incr> to LMA, VMA and start addresses\n\
588 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
589 Change LMA and VMA of section <name> by <val>\n\
590 --change-section-lma <name>{=|+|-}<val>\n\
591 Change the LMA of section <name> by <val>\n\
592 --change-section-vma <name>{=|+|-}<val>\n\
593 Change the VMA of section <name> by <val>\n\
594 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
595 Warn if a named section does not exist\n\
596 --set-section-flags <name>=<flags>\n\
597 Set section <name>'s properties to <flags>\n\
598 --add-section <name>=<file> Add section <name> found in <file> to output\n\
599 --update-section <name>=<file>\n\
600 Update contents of section <name> with\n\
601 contents found in <file>\n\
602 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
603 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
604 --long-section-names {enable|disable|keep}\n\
605 Handle long section names in Coff objects.\n\
606 --change-leading-char Force output format's leading character style\n\
607 --remove-leading-char Remove leading character from global symbols\n\
608 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
609 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
610 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
612 --srec-len <number> Restrict the length of generated Srecords\n\
613 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
614 --strip-symbols <file> -N for all symbols listed in <file>\n\
615 --strip-unneeded-symbols <file>\n\
616 --strip-unneeded-symbol for all symbols listed\n\
618 --keep-symbols <file> -K for all symbols listed in <file>\n\
619 --localize-symbols <file> -L for all symbols listed in <file>\n\
620 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
621 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
622 --weaken-symbols <file> -W for all symbols listed in <file>\n\
623 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
624 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
625 --writable-text Mark the output text as writable\n\
626 --readonly-text Make the output text write protected\n\
627 --pure Mark the output file as demand paged\n\
628 --impure Mark the output file as impure\n\
629 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
630 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
631 --prefix-alloc-sections <prefix>\n\
632 Add <prefix> to start of every allocatable\n\
634 --file-alignment <num> Set PE file alignment to <num>\n\
635 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
637 --image-base <address> Set PE image base to <address>\n\
638 --section-alignment <num> Set PE section alignment to <num>\n\
639 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
641 --subsystem <name>[:<version>]\n\
642 Set PE subsystem to <name> [& <version>]\n\
643 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
644 Compress DWARF debug sections using zlib\n\
645 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
646 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
648 -M --merge-notes Remove redundant entries in note sections\n\
649 --no-merge-notes Do not attempt to remove redundant notes (default)\n\
650 -v --verbose List all object files modified\n\
651 @<file> Read options from <file>\n\
652 -V --version Display this program's version number\n\
653 -h --help Display this output\n\
654 --info List object formats & architectures supported\n\
656 list_supported_targets (program_name
, stream
);
657 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
658 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
662 ATTRIBUTE_NORETURN
static void
663 strip_usage (FILE *stream
, int exit_status
)
665 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
666 fprintf (stream
, _(" Removes symbols and sections from files\n"));
667 fprintf (stream
, _(" The options are:\n"));
668 fprintf (stream
, _("\
669 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
670 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
671 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
672 -p --preserve-dates Copy modified/access timestamps to the output\n\
674 if (DEFAULT_AR_DETERMINISTIC
)
675 fprintf (stream
, _("\
676 -D --enable-deterministic-archives\n\
677 Produce deterministic output when stripping archives (default)\n\
678 -U --disable-deterministic-archives\n\
679 Disable -D behavior\n"));
681 fprintf (stream
, _("\
682 -D --enable-deterministic-archives\n\
683 Produce deterministic output when stripping archives\n\
684 -U --disable-deterministic-archives\n\
685 Disable -D behavior (default)\n"));
686 fprintf (stream
, _("\
687 -R --remove-section=<name> Also remove section <name> from the output\n\
688 --remove-relocations <name> Remove relocations from section <name>\n\
689 -s --strip-all Remove all symbol and relocation information\n\
690 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
691 --strip-dwo Remove all DWO sections\n\
692 --strip-unneeded Remove all symbols not needed by relocations\n\
693 --only-keep-debug Strip everything but the debug information\n\
694 -M --merge-notes Remove redundant entries in note sections (default)\n\
695 --no-merge-notes Do not attempt to remove redundant notes\n\
696 -N --strip-symbol=<name> Do not copy symbol <name>\n\
697 -K --keep-symbol=<name> Do not strip symbol <name>\n\
698 --keep-file-symbols Do not strip file symbol(s)\n\
699 -w --wildcard Permit wildcard in symbol comparison\n\
700 -x --discard-all Remove all non-global symbols\n\
701 -X --discard-locals Remove any compiler-generated symbols\n\
702 -v --verbose List all object files modified\n\
703 -V --version Display this program's version number\n\
704 -h --help Display this output\n\
705 --info List object formats & architectures supported\n\
706 -o <file> Place stripped output into <file>\n\
709 list_supported_targets (program_name
, stream
);
710 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
711 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
715 /* Parse section flags into a flagword, with a fatal error if the
716 string can't be parsed. */
719 parse_flags (const char *s
)
729 snext
= strchr (s
, ',');
739 #define PARSE_FLAG(fname,fval) \
740 else if (strncasecmp (fname, s, len) == 0) ret |= fval
741 PARSE_FLAG ("alloc", SEC_ALLOC
);
742 PARSE_FLAG ("load", SEC_LOAD
);
743 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
744 PARSE_FLAG ("readonly", SEC_READONLY
);
745 PARSE_FLAG ("debug", SEC_DEBUGGING
);
746 PARSE_FLAG ("code", SEC_CODE
);
747 PARSE_FLAG ("data", SEC_DATA
);
748 PARSE_FLAG ("rom", SEC_ROM
);
749 PARSE_FLAG ("share", SEC_COFF_SHARED
);
750 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
751 PARSE_FLAG ("merge", SEC_MERGE
);
752 PARSE_FLAG ("strings", SEC_STRINGS
);
758 copy
= (char *) xmalloc (len
+ 1);
759 strncpy (copy
, s
, len
);
761 non_fatal (_("unrecognized section flag `%s'"), copy
);
762 fatal (_("supported flags: %s"),
763 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
773 /* Parse symbol flags into a flagword, with a fatal error if the
774 string can't be parsed. */
777 parse_symflags (const char *s
, char **other
)
787 snext
= strchr (s
, ',');
796 #define PARSE_FLAG(fname, fval) \
797 else if (len == sizeof fname - 1 \
798 && strncasecmp (fname, s, len) == 0) \
801 #define PARSE_OTHER(fname, fval) \
802 else if (len >= sizeof fname \
803 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
804 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
807 PARSE_FLAG ("local", BSF_LOCAL
);
808 PARSE_FLAG ("global", BSF_GLOBAL
);
809 PARSE_FLAG ("export", BSF_EXPORT
);
810 PARSE_FLAG ("debug", BSF_DEBUGGING
);
811 PARSE_FLAG ("function", BSF_FUNCTION
);
812 PARSE_FLAG ("weak", BSF_WEAK
);
813 PARSE_FLAG ("section", BSF_SECTION_SYM
);
814 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
815 PARSE_FLAG ("warning", BSF_WARNING
);
816 PARSE_FLAG ("indirect", BSF_INDIRECT
);
817 PARSE_FLAG ("file", BSF_FILE
);
818 PARSE_FLAG ("object", BSF_OBJECT
);
819 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
820 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
821 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
822 PARSE_OTHER ("before=", *other
);
830 copy
= (char *) xmalloc (len
+ 1);
831 strncpy (copy
, s
, len
);
833 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
834 fatal (_("supported flags: %s"),
835 "local, global, export, debug, function, weak, section, "
836 "constructor, warning, indirect, file, object, synthetic, "
837 "indirect-function, unique-object, before=<othersym>");
847 /* Find and optionally add an entry in the change_sections list.
849 We need to be careful in how we match section names because of the support
850 for wildcard characters. For example suppose that the user has invoked
853 --set-section-flags .debug_*=debug
854 --set-section-flags .debug_str=readonly,debug
855 --change-section-address .debug_*ranges=0x1000
857 With the idea that all debug sections will receive the DEBUG flag, the
858 .debug_str section will also receive the READONLY flag and the
859 .debug_ranges and .debug_aranges sections will have their address set to
860 0x1000. (This may not make much sense, but it is just an example).
862 When adding the section name patterns to the section list we need to make
863 sure that previous entries do not match with the new entry, unless the
864 match is exact. (In which case we assume that the user is overriding
865 the previous entry with the new context).
867 When matching real section names to the section list we make use of the
868 wildcard characters, but we must do so in context. Eg if we are setting
869 section addresses then we match for .debug_ranges but not for .debug_info.
871 Finally, if ADD is false and we do find a match, we mark the section list
874 static struct section_list
*
875 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
877 struct section_list
*p
, *match
= NULL
;
879 /* assert ((context & ((1 << 7) - 1)) != 0); */
881 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
885 if (strcmp (p
->pattern
, name
) == 0)
887 /* Check for context conflicts. */
888 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
889 && (context
& SECTION_CONTEXT_COPY
))
890 || ((context
& SECTION_CONTEXT_REMOVE
)
891 && (p
->context
& SECTION_CONTEXT_COPY
)))
892 fatal (_("error: %s both copied and removed"), name
);
894 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
895 && (context
& SECTION_CONTEXT_ALTER_VMA
))
896 || ((context
& SECTION_CONTEXT_SET_VMA
)
897 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
898 fatal (_("error: %s both sets and alters VMA"), name
);
900 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
901 && (context
& SECTION_CONTEXT_ALTER_LMA
))
902 || ((context
& SECTION_CONTEXT_SET_LMA
)
903 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
904 fatal (_("error: %s both sets and alters LMA"), name
);
906 /* Extend the context. */
907 p
->context
|= context
;
911 /* If we are not adding a new name/pattern then
912 only check for a match if the context applies. */
913 else if (p
->context
& context
)
915 /* We could check for the presence of wildchar characters
916 first and choose between calling strcmp and fnmatch,
917 but is that really worth it ? */
918 if (p
->pattern
[0] == '!')
920 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
928 if (fnmatch (p
->pattern
, name
, 0) == 0)
944 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
947 p
->context
= context
;
951 p
->next
= change_sections
;
957 /* S1 is the entry node already in the table, S2 is the key node. */
960 eq_string_redefnode (const void *s1
, const void *s2
)
962 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
963 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
964 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
967 /* P is redefine node. Hash value is generated from its "source" filed. */
970 htab_hash_redefnode (const void *p
)
972 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
973 return htab_hash_string (redefnode
->source
);
976 /* Create hashtab used for redefine node. */
979 create_symbol2redef_htab (void)
981 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
985 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
988 eq_string (const void *s1
, const void *s2
)
990 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
994 create_symbol_htab (void)
996 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
1000 create_symbol_htabs (void)
1002 strip_specific_htab
= create_symbol_htab ();
1003 strip_unneeded_htab
= create_symbol_htab ();
1004 keep_specific_htab
= create_symbol_htab ();
1005 localize_specific_htab
= create_symbol_htab ();
1006 globalize_specific_htab
= create_symbol_htab ();
1007 keepglobal_specific_htab
= create_symbol_htab ();
1008 weaken_specific_htab
= create_symbol_htab ();
1009 redefine_specific_htab
= create_symbol2redef_htab ();
1010 /* As there is no bidirectional hash table in libiberty, need a reverse table
1011 to check duplicated target string. */
1012 redefine_specific_reverse_htab
= create_symbol_htab ();
1015 /* Add a symbol to strip_specific_list. */
1018 add_specific_symbol (const char *name
, htab_t htab
)
1020 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1023 /* Like add_specific_symbol, but the element type is void *. */
1026 add_specific_symbol_node (const void *node
, htab_t htab
)
1028 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1031 /* Add symbols listed in `filename' to strip_specific_list. */
1033 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1034 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1037 add_specific_symbols (const char *filename
, htab_t htab
)
1043 unsigned int line_count
;
1045 size
= get_file_size (filename
);
1052 buffer
= (char *) xmalloc (size
+ 2);
1053 f
= fopen (filename
, FOPEN_RT
);
1055 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1057 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1058 fatal (_("%s: fread failed"), filename
);
1061 buffer
[size
] = '\n';
1062 buffer
[size
+ 1] = '\0';
1066 for (line
= buffer
; * line
!= '\0'; line
++)
1071 int finished
= FALSE
;
1073 for (eol
= line
;; eol
++)
1079 /* Cope with \n\r. */
1087 /* Cope with \r\n. */
1098 /* Line comment, Terminate the line here, in case a
1099 name is present and then allow the rest of the
1100 loop to find the real end of the line. */
1112 /* A name may now exist somewhere between 'line' and 'eol'.
1113 Strip off leading whitespace and trailing whitespace,
1114 then add it to the list. */
1115 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1117 for (name_end
= name
;
1118 (! IS_WHITESPACE (* name_end
))
1119 && (! IS_LINE_TERMINATOR (* name_end
));
1123 if (! IS_LINE_TERMINATOR (* name_end
))
1127 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1130 if (! IS_LINE_TERMINATOR (* extra
))
1131 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1132 filename
, line_count
);
1137 if (name_end
> name
)
1138 add_specific_symbol (name
, htab
);
1140 /* Advance line pointer to end of line. The 'eol ++' in the for
1141 loop above will then advance us to the start of the next line. */
1147 /* See whether a symbol should be stripped or kept
1148 based on strip_specific_list and keep_symbols. */
1151 is_specified_symbol_predicate (void **slot
, void *data
)
1153 struct is_specified_symbol_predicate_data
*d
=
1154 (struct is_specified_symbol_predicate_data
*) data
;
1155 const char *slot_name
= (char *) *slot
;
1157 if (*slot_name
!= '!')
1159 if (! fnmatch (slot_name
, d
->name
, 0))
1162 /* Continue traversal, there might be a non-match rule. */
1168 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1171 /* Stop traversal. */
1176 /* Continue traversal. */
1181 is_specified_symbol (const char *name
, htab_t htab
)
1185 struct is_specified_symbol_predicate_data data
;
1190 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1195 return htab_find (htab
, name
) != NULL
;
1198 /* Return a pointer to the symbol used as a signature for GROUP. */
1201 group_signature (asection
*group
)
1203 bfd
*abfd
= group
->owner
;
1204 Elf_Internal_Shdr
*ghdr
;
1206 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1210 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1213 ghdr
= &elf_section_data (group
)->this_hdr
;
1214 if (ghdr
->sh_link
< elf_numsections (abfd
))
1216 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1217 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1219 if (symhdr
->sh_type
== SHT_SYMTAB
1220 && ghdr
->sh_info
> 0
1221 && ghdr
->sh_info
< (symhdr
->sh_size
/ bed
->s
->sizeof_sym
))
1222 return isympp
[ghdr
->sh_info
- 1];
1227 /* Return TRUE if the section is a DWO section. */
1230 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1232 const char *name
= bfd_get_section_name (abfd
, sec
);
1233 int len
= strlen (name
);
1235 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1238 /* Return TRUE if section SEC is in the update list. */
1241 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1243 if (update_sections
!= NULL
)
1245 struct section_add
*pupdate
;
1247 for (pupdate
= update_sections
;
1249 pupdate
= pupdate
->next
)
1251 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1260 is_merged_note_section (bfd
* abfd
, asection
* sec
)
1263 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1264 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1265 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1266 We should add support for more note types. */
1267 && ((elf_section_data (sec
)->this_hdr
.sh_flags
& SHF_GNU_BUILD_NOTE
) != 0
1268 /* Old versions of GAS (prior to 2.27) could not set the section
1269 flags to OS-specific values, so we also accept sections with the
1271 || (strcmp (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
) == 0)))
1277 /* See if a non-group section is being removed. */
1280 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1282 if (sections_removed
|| sections_copied
)
1284 struct section_list
*p
;
1285 struct section_list
*q
;
1287 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1288 SECTION_CONTEXT_REMOVE
);
1289 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1290 SECTION_CONTEXT_COPY
);
1293 fatal (_("error: section %s matches both remove and copy options"),
1294 bfd_get_section_name (abfd
, sec
));
1295 if (p
&& is_update_section (abfd
, sec
))
1296 fatal (_("error: section %s matches both update and remove options"),
1297 bfd_get_section_name (abfd
, sec
));
1301 if (sections_copied
&& q
== NULL
)
1305 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1307 if (strip_symbols
== STRIP_DEBUG
1308 || strip_symbols
== STRIP_UNNEEDED
1309 || strip_symbols
== STRIP_ALL
1310 || discard_locals
== LOCALS_ALL
1311 || convert_debugging
)
1313 /* By default we don't want to strip .reloc section.
1314 This section has for pe-coff special meaning. See
1315 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1316 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1320 if (strip_symbols
== STRIP_DWO
)
1321 return is_dwo_section (abfd
, sec
);
1323 if (strip_symbols
== STRIP_NONDEBUG
)
1327 if (strip_symbols
== STRIP_NONDWO
)
1328 return !is_dwo_section (abfd
, sec
);
1333 /* See if a section is being removed. */
1336 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1338 if (is_strip_section_1 (abfd
, sec
))
1341 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1345 asection
*elt
, *first
;
1348 If we are going to strip the group signature symbol, then
1349 strip the group section too. */
1350 gsym
= group_signature (sec
);
1355 if ((strip_symbols
== STRIP_ALL
1356 && !is_specified_symbol (gname
, keep_specific_htab
))
1357 || is_specified_symbol (gname
, strip_specific_htab
))
1360 /* Remove the group section if all members are removed. */
1361 first
= elt
= elf_next_in_group (sec
);
1364 if (!is_strip_section_1 (abfd
, elt
))
1366 elt
= elf_next_in_group (elt
);
1378 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1380 /* Always keep ELF note sections. */
1381 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1382 return (elf_section_type (isection
) == SHT_NOTE
);
1384 /* Always keep the .buildid section for PE/COFF.
1386 Strictly, this should be written "always keep the section storing the debug
1387 directory", but that may be the .text section for objects produced by some
1388 tools, which it is not sensible to keep. */
1389 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1390 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1395 /* Return true if SYM is a hidden symbol. */
1398 is_hidden_symbol (asymbol
*sym
)
1400 elf_symbol_type
*elf_sym
;
1402 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1403 if (elf_sym
!= NULL
)
1404 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1414 need_sym_before (struct addsym_node
**node
, const char *sym
)
1417 struct addsym_node
*ptr
= add_sym_list
;
1419 /* 'othersym' symbols are at the front of the list. */
1420 for (count
= 0; count
< add_symbols
; count
++)
1424 else if (strcmp (ptr
->othersym
, sym
) == 0)
1426 free (ptr
->othersym
);
1427 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1437 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1439 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1441 bfd_asymbol_name (sym
) = ptr
->symdef
;
1442 sym
->value
= ptr
->symval
;
1443 sym
->flags
= ptr
->flags
;
1446 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1448 fatal (_("Section %s not found"), ptr
->section
);
1452 sym
->section
= bfd_abs_section_ptr
;
1456 /* Choose which symbol entries to copy; put the result in OSYMS.
1457 We don't copy in place, because that confuses the relocs.
1458 Return the number of symbols to print. */
1461 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1462 asymbol
**isyms
, long symcount
)
1464 asymbol
**from
= isyms
, **to
= osyms
;
1465 long src_count
= 0, dst_count
= 0;
1466 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1468 for (; src_count
< symcount
; src_count
++)
1470 asymbol
*sym
= from
[src_count
];
1471 flagword flags
= sym
->flags
;
1472 char *name
= (char *) bfd_asymbol_name (sym
);
1474 bfd_boolean used_in_reloc
= FALSE
;
1475 bfd_boolean undefined
;
1476 bfd_boolean rem_leading_char
;
1477 bfd_boolean add_leading_char
;
1479 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1483 struct addsym_node
*ptr
;
1485 if (need_sym_before (&ptr
, name
))
1486 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1489 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1493 new_name
= (char *) lookup_sym_redefinition (name
);
1494 if (new_name
== name
1495 && (flags
& BSF_SECTION_SYM
) != 0)
1496 new_name
= (char *) find_section_rename (name
, NULL
);
1497 bfd_asymbol_name (sym
) = new_name
;
1501 /* Check if we will remove the current leading character. */
1503 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1504 && (change_leading_char
1505 || (remove_leading_char
1506 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1508 || bfd_is_com_section (bfd_get_section (sym
)))));
1510 /* Check if we will add a new leading character. */
1513 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1514 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1515 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1517 /* Short circuit for change_leading_char if we can do it in-place. */
1518 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1520 name
[0] = bfd_get_symbol_leading_char (obfd
);
1521 bfd_asymbol_name (sym
) = name
;
1522 rem_leading_char
= FALSE
;
1523 add_leading_char
= FALSE
;
1526 /* Remove leading char. */
1527 if (rem_leading_char
)
1528 bfd_asymbol_name (sym
) = ++name
;
1530 /* Add new leading char and/or prefix. */
1531 if (add_leading_char
|| prefix_symbols_string
)
1535 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1536 + strlen (name
) + 1);
1537 if (add_leading_char
)
1538 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1540 if (prefix_symbols_string
)
1542 strcpy (ptr
, prefix_symbols_string
);
1543 ptr
+= strlen (prefix_symbols_string
);
1547 bfd_asymbol_name (sym
) = n
;
1551 if (strip_symbols
== STRIP_ALL
)
1553 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1554 || ((flags
& BSF_SECTION_SYM
) != 0
1555 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1559 used_in_reloc
= TRUE
;
1561 else if (relocatable
/* Relocatable file. */
1562 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1563 || bfd_is_com_section (bfd_get_section (sym
))))
1565 else if (bfd_decode_symclass (sym
) == 'I')
1566 /* Global symbols in $idata sections need to be retained
1567 even if relocatable is FALSE. External users of the
1568 library containing the $idata section may reference these
1571 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1572 || (flags
& BSF_WEAK
) != 0
1574 || bfd_is_com_section (bfd_get_section (sym
)))
1575 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1576 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1577 keep
= (strip_symbols
!= STRIP_DEBUG
1578 && strip_symbols
!= STRIP_UNNEEDED
1579 && ! convert_debugging
);
1580 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1581 /* COMDAT sections store special information in local
1582 symbols, so we cannot risk stripping any of them. */
1584 else /* Local symbol. */
1585 keep
= (strip_symbols
!= STRIP_UNNEEDED
1586 && (discard_locals
!= LOCALS_ALL
1587 && (discard_locals
!= LOCALS_START_L
1588 || ! bfd_is_local_label (abfd
, sym
))));
1590 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1592 /* There are multiple ways to set 'keep' above, but if it
1593 was the relocatable symbol case, then that's an error. */
1596 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1604 && !(flags
& BSF_KEEP
)
1605 && is_specified_symbol (name
, strip_unneeded_htab
))
1609 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1610 || is_specified_symbol (name
, keep_specific_htab
)))
1613 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1618 if ((flags
& BSF_GLOBAL
) != 0
1619 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1621 sym
->flags
&= ~ BSF_GLOBAL
;
1622 sym
->flags
|= BSF_WEAK
;
1626 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1627 && (is_specified_symbol (name
, localize_specific_htab
)
1628 || (htab_elements (keepglobal_specific_htab
) != 0
1629 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1630 || (localize_hidden
&& is_hidden_symbol (sym
))))
1632 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1633 sym
->flags
|= BSF_LOCAL
;
1637 && (flags
& BSF_LOCAL
)
1638 && is_specified_symbol (name
, globalize_specific_htab
))
1640 sym
->flags
&= ~ BSF_LOCAL
;
1641 sym
->flags
|= BSF_GLOBAL
;
1644 to
[dst_count
++] = sym
;
1649 struct addsym_node
*ptr
= add_sym_list
;
1651 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1655 if (strcmp (ptr
->othersym
, ""))
1656 fatal (_("'before=%s' not found"), ptr
->othersym
);
1659 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1665 to
[dst_count
] = NULL
;
1670 /* Find the redefined name of symbol SOURCE. */
1673 lookup_sym_redefinition (const char *source
)
1675 struct redefine_node key_node
= {(char *) source
, NULL
};
1676 struct redefine_node
*redef_node
1677 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1679 return redef_node
== NULL
? source
: redef_node
->target
;
1682 /* Insert a node into symbol redefine hash tabel. */
1685 add_redefine_and_check (const char *cause
, const char *source
,
1688 struct redefine_node
*new_node
1689 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1691 new_node
->source
= strdup (source
);
1692 new_node
->target
= strdup (target
);
1694 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1695 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1698 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1699 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1702 /* Insert the NEW_NODE into hash table for quick search. */
1703 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1705 /* Insert the target string into the reverse hash table, this is needed for
1706 duplicated target string check. */
1707 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1711 /* Handle the --redefine-syms option. Read lines containing "old new"
1712 from the file, and add them to the symbol redefine list. */
1715 add_redefine_syms_file (const char *filename
)
1724 file
= fopen (filename
, "r");
1726 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1727 filename
, strerror (errno
));
1730 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1738 /* Collect the input symbol name. */
1739 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1747 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1755 /* Eat white space between the symbol names. */
1756 while (IS_WHITESPACE (c
))
1758 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1763 /* Collect the output symbol name. */
1765 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1773 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1781 /* Eat white space at end of line. */
1782 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1787 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1788 || c
== '\n' || c
== EOF
)
1791 /* Append the redefinition to the list. */
1793 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1804 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1806 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1807 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1810 /* Eat the rest of the line and finish it. */
1811 while (c
!= '\n' && c
!= EOF
)
1817 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1822 /* Copy unknown object file IBFD onto OBFD.
1823 Returns TRUE upon success, FALSE otherwise. */
1826 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1834 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1836 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1843 non_fatal (_("stat returns negative size for `%s'"),
1844 bfd_get_archive_filename (ibfd
));
1848 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1850 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1855 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1856 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1858 cbuf
= (char *) xmalloc (BUFSIZE
);
1860 while (ncopied
< size
)
1862 tocopy
= size
- ncopied
;
1863 if (tocopy
> BUFSIZE
)
1866 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1867 != (bfd_size_type
) tocopy
)
1869 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1874 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1875 != (bfd_size_type
) tocopy
)
1877 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1885 /* We should at least to be able to read it back when copying an
1886 unknown object in an archive. */
1887 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1892 /* Returns the number of bytes needed to store VAL. */
1894 static inline unsigned int
1895 num_bytes (unsigned long val
)
1897 unsigned int count
= 0;
1899 /* FIXME: There must be a faster way to do this. */
1908 /* Merge the notes on SEC, removing redundant entries.
1909 Returns the new, smaller size of the section upon success. */
1911 static bfd_size_type
1912 merge_gnu_build_notes (bfd
* abfd
, asection
* sec
, bfd_size_type size
, bfd_byte
* contents
)
1914 Elf_Internal_Note
* pnotes_end
;
1915 Elf_Internal_Note
* pnotes
;
1916 Elf_Internal_Note
* pnote
;
1917 bfd_size_type remain
= size
;
1918 unsigned version_1_seen
= 0;
1919 unsigned version_2_seen
= 0;
1920 bfd_boolean duplicate_found
= FALSE
;
1921 const char * err
= NULL
;
1922 bfd_byte
* in
= contents
;
1923 int attribute_type_byte
;
1926 /* Make a copy of the notes.
1927 Minimum size of a note is 12 bytes. */
1928 pnote
= pnotes
= (Elf_Internal_Note
*) xcalloc ((size
/ 12), sizeof (Elf_Internal_Note
));
1929 while (remain
>= 12)
1931 pnote
->namesz
= (bfd_get_32 (abfd
, in
) + 3) & ~3;
1932 pnote
->descsz
= (bfd_get_32 (abfd
, in
+ 4) + 3) & ~3;
1933 pnote
->type
= bfd_get_32 (abfd
, in
+ 8);
1935 if (pnote
->type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
1936 && pnote
->type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
1938 err
= _("corrupt GNU build attribute note: wrong note type");
1942 if (pnote
->namesz
+ pnote
->descsz
+ 12 > remain
)
1944 err
= _("corrupt GNU build attribute note: note too big");
1948 if (pnote
->namesz
< 2)
1950 err
= _("corrupt GNU build attribute note: name too small");
1954 if (pnote
->descsz
!= 0
1955 && pnote
->descsz
!= 4
1956 && pnote
->descsz
!= 8)
1958 err
= _("corrupt GNU build attribute note: bad description size");
1962 pnote
->namedata
= (char *)(in
+ 12);
1963 pnote
->descdata
= (char *)(in
+ 12 + pnote
->namesz
);
1965 remain
-= 12 + pnote
->namesz
+ pnote
->descsz
;
1966 in
+= 12 + pnote
->namesz
+ pnote
->descsz
;
1968 if (pnote
->namedata
[pnote
->namesz
- 1] != 0)
1970 err
= _("corrupt GNU build attribute note: name not NUL terminated");
1974 if (pnote
->namesz
> 2
1975 && pnote
->namedata
[0] == '$'
1976 && pnote
->namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
1977 && pnote
->namedata
[2] == '1')
1979 else if (pnote
->namesz
> 4
1980 && pnote
->namedata
[0] == 'G'
1981 && pnote
->namedata
[1] == 'A'
1982 && pnote
->namedata
[2] == '$'
1983 && pnote
->namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
1984 && pnote
->namedata
[4] == '2')
1991 /* Check that the notes are valid. */
1994 err
= _("corrupt GNU build attribute notes: excess data at end");
1998 if (version_1_seen
== 0 && version_2_seen
== 0)
2000 err
= _("bad GNU build attribute notes: no known versions detected");
2004 if (version_1_seen
> 0 && version_2_seen
> 0)
2006 err
= _("bad GNU build attribute notes: multiple different versions");
2010 /* Merging is only needed if there is more than one version note... */
2011 if (version_1_seen
== 1 || version_2_seen
== 1)
2014 attribute_type_byte
= version_1_seen
? 1 : 3;
2015 val_start
= attribute_type_byte
+ 1;
2017 /* The first note should be the first version note. */
2018 if (pnotes
[0].namedata
[attribute_type_byte
] != GNU_BUILD_ATTRIBUTE_VERSION
)
2020 err
= _("bad GNU build attribute notes: first note not version note");
2024 /* Now merge the notes. The rules are:
2025 1. Preserve the ordering of the notes.
2026 2. Preserve any NT_GNU_BUILD_ATTRIBUTE_FUNC notes.
2027 3. Eliminate any NT_GNU_BUILD_ATTRIBUTE_OPEN notes that have the same
2028 full name field as the immediately preceeding note with the same type
2030 4. Combine the numeric value of any NT_GNU_BUILD_ATTRIBUTE_OPEN notes
2031 of type GNU_BUILD_ATTRIBUTE_STACK_SIZE.
2032 5. If an NT_GNU_BUILD_ATTRIBUTE_OPEN note is going to be preserved and
2033 its description field is empty then the nearest preceeding OPEN note
2034 with a non-empty description field must also be preserved *OR* the
2035 description field of the note must be changed to contain the starting
2036 address to which it refers. */
2037 for (pnote
= pnotes
+ 1; pnote
< pnotes_end
; pnote
++)
2039 Elf_Internal_Note
* back
;
2040 Elf_Internal_Note
* prev_open
= NULL
;
2042 if (pnote
->type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2045 /* Scan for duplicates. Clear the type field of any found - but do not
2046 delete them just yet. */
2047 for (back
= pnote
- 1; back
>= pnotes
; back
--)
2049 if (back
->descsz
> 0
2050 && back
->type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
2051 && prev_open
== NULL
)
2054 if (back
->type
== pnote
->type
2055 && back
->namedata
[attribute_type_byte
] == pnote
->namedata
[attribute_type_byte
])
2057 if (back
->namedata
[attribute_type_byte
] == GNU_BUILD_ATTRIBUTE_STACK_SIZE
)
2059 unsigned char * name
;
2060 unsigned long note_val
;
2061 unsigned long back_val
;
2066 for (shift
= 0, note_val
= 0,
2067 bytes
= pnote
->namesz
- val_start
,
2068 name
= (unsigned char *) pnote
->namedata
+ val_start
;
2071 byte
= (* name
++) & 0xff;
2072 note_val
|= byte
<< shift
;
2076 for (shift
= 0, back_val
= 0,
2077 bytes
= back
->namesz
- val_start
,
2078 name
= (unsigned char *) back
->namedata
+ val_start
;
2081 byte
= (* name
++) & 0xff;
2082 back_val
|= byte
<< shift
;
2086 back_val
+= note_val
;
2087 if (num_bytes (back_val
) >= back
->namesz
- val_start
)
2089 /* We have a problem - the new value requires more bytes of
2090 storage in the name field than are available. Currently
2091 we have no way of fixing this, so we just preserve both
2096 /* Write the new val into back. */
2097 name
= (unsigned char *) back
->namedata
+ val_start
;
2098 while (name
< (unsigned char *) back
->namedata
+ back
->namesz
)
2100 byte
= back_val
& 0xff;
2107 duplicate_found
= TRUE
;
2112 if (back
->namesz
== pnote
->namesz
2113 && memcmp (back
->namedata
, pnote
->namedata
, back
->namesz
) == 0)
2115 duplicate_found
= TRUE
;
2120 /* If we have found an attribute match then stop searching backwards. */
2121 if (! ISPRINT (back
->namedata
[attribute_type_byte
])
2122 /* Names are NUL terminated, so this is safe. */
2123 || strcmp (back
->namedata
+ val_start
, pnote
->namedata
+ val_start
) == 0)
2125 /* Since we are keeping this note we must check to see if its
2126 description refers back to an earlier OPEN version note. If so
2127 then we must make sure that version note is also preserved. */
2128 if (pnote
->descsz
== 0
2129 && prev_open
!= NULL
2130 && prev_open
->type
== 0)
2131 prev_open
->type
= NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2139 if (duplicate_found
)
2141 bfd_byte
* new_contents
;
2144 bfd_size_type new_size
;
2145 arelent
** relpp
= NULL
;
2149 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2152 /* If there are relocs associated with this section then we may
2153 have to adjust them as well, as we remove notes. */
2154 relpp
= (arelent
**) xmalloc (relsize
);
2155 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2157 /* Do not bother complaining here - copy_relocations_in_section
2158 will do that for us. */
2162 /* Eliminate the duplicates. */
2163 new = new_contents
= xmalloc (size
);
2164 for (pnote
= pnotes
, old
= contents
;
2168 bfd_size_type note_size
= 12 + pnote
->namesz
+ pnote
->descsz
;
2170 if (pnote
->type
== 0)
2176 /* If there is a reloc at the current offset, delete it.
2177 Adjust the location of any relocs above the current
2178 location downwards by the size of the note being deleted.
2179 FIXME: We could optimize this loop by retaining a pointer to
2180 the last reloc below the current note. */
2181 for (rel
= relpp
; rel
< relpp
+ relcount
; rel
++)
2183 if ((* rel
)->howto
== NULL
)
2185 if ((* rel
)->address
< (bfd_vma
) (new - new_contents
))
2187 if ((* rel
)->address
>= (bfd_vma
) ((new + note_size
) - new_contents
))
2188 (* rel
)->address
-= note_size
;
2190 (* rel
)->howto
= NULL
;
2196 memcpy (new, old
, note_size
);
2203 new_size
= new - new_contents
;
2204 memcpy (contents
, new_contents
, new_size
);
2206 free (new_contents
);
2210 arelent
**rel
= relpp
;
2212 while (rel
< relpp
+ relcount
)
2213 if ((*rel
)->howto
!= NULL
)
2217 /* Delete eliminated relocs.
2218 FIXME: There are better ways to do this. */
2219 memmove (rel
, rel
+ 1,
2220 ((relcount
- (rel
- relpp
)) - 1) * sizeof (*rel
));
2223 bfd_set_reloc (abfd
, sec
, relpp
, relcount
);
2230 bfd_set_error (bfd_error_bad_value
);
2231 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2239 /* Copy object file IBFD onto OBFD.
2240 Returns TRUE upon success, FALSE otherwise. */
2243 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2247 asection
**osections
= NULL
;
2249 asection
*gnu_debuglink_section
= NULL
;
2250 bfd_size_type
*gaps
= NULL
;
2251 bfd_size_type max_gap
= 0;
2254 enum bfd_architecture iarch
;
2258 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2259 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2260 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2262 /* PR 17636: Call non-fatal so that we return to our parent who
2263 may need to tidy temporary files. */
2264 non_fatal (_("Unable to change endianness of input file(s)"));
2268 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2270 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2274 if (ibfd
->sections
== NULL
)
2276 non_fatal (_("error: the input file '%s' has no sections"),
2277 bfd_get_archive_filename (ibfd
));
2281 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
2283 if ((do_debug_sections
& compress
) != 0
2284 && do_debug_sections
!= compress
)
2286 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2287 bfd_get_archive_filename (ibfd
));
2291 if (do_elf_stt_common
)
2293 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2294 bfd_get_archive_filename (ibfd
));
2300 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2301 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2302 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2311 start
= bfd_get_start_address (ibfd
);
2312 start
+= change_start
;
2315 /* Neither the start address nor the flags
2316 need to be set for a core file. */
2317 if (bfd_get_format (obfd
) != bfd_core
)
2321 flags
= bfd_get_file_flags (ibfd
);
2322 flags
|= bfd_flags_to_set
;
2323 flags
&= ~bfd_flags_to_clear
;
2324 flags
&= bfd_applicable_file_flags (obfd
);
2326 if (strip_symbols
== STRIP_ALL
)
2327 flags
&= ~HAS_RELOC
;
2329 if (!bfd_set_start_address (obfd
, start
)
2330 || !bfd_set_file_flags (obfd
, flags
))
2332 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2337 /* Copy architecture of input file to output file. */
2338 iarch
= bfd_get_arch (ibfd
);
2339 imach
= bfd_get_mach (ibfd
);
2342 if (bfd_get_arch_info (ibfd
) == NULL
2343 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
2345 iarch
= input_arch
->arch
;
2346 imach
= input_arch
->mach
;
2349 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2350 bfd_get_archive_filename (ibfd
));
2352 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2353 && (ibfd
->target_defaulted
2354 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2356 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2357 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2358 bfd_get_archive_filename (ibfd
));
2360 non_fatal (_("Output file cannot represent architecture `%s'"),
2361 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2362 bfd_get_mach (ibfd
)));
2366 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2368 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2372 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2373 && bfd_pei_p (obfd
))
2375 /* Set up PE parameters. */
2376 pe_data_type
*pe
= pe_data (obfd
);
2378 /* Copy PE parameters before changing them. */
2379 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
2380 && bfd_pei_p (ibfd
))
2381 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2383 if (pe_file_alignment
!= (bfd_vma
) -1)
2384 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2386 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2388 if (pe_heap_commit
!= (bfd_vma
) -1)
2389 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2391 if (pe_heap_reserve
!= (bfd_vma
) -1)
2392 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2394 if (pe_image_base
!= (bfd_vma
) -1)
2395 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2397 if (pe_section_alignment
!= (bfd_vma
) -1)
2398 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2400 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2402 if (pe_stack_commit
!= (bfd_vma
) -1)
2403 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2405 if (pe_stack_reserve
!= (bfd_vma
) -1)
2406 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2408 if (pe_subsystem
!= -1)
2409 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2411 if (pe_major_subsystem_version
!= -1)
2412 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2414 if (pe_minor_subsystem_version
!= -1)
2415 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2417 if (pe_file_alignment
> pe_section_alignment
)
2419 char file_alignment
[20], section_alignment
[20];
2421 sprintf_vma (file_alignment
, pe_file_alignment
);
2422 sprintf_vma (section_alignment
, pe_section_alignment
);
2423 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2425 file_alignment
, section_alignment
);
2432 if (osympp
!= isympp
)
2438 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2441 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2445 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2446 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2449 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2452 /* PR 17512: file: d6323821
2453 If the symbol table could not be loaded do not pretend that we have
2454 any symbols. This trips us up later on when we load the relocs. */
2458 osympp
= isympp
= NULL
;
2461 /* BFD mandates that all output sections be created and sizes set before
2462 any output is done. Thus, we traverse all sections multiple times. */
2463 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2465 if (!extract_symbol
)
2466 setup_bfd_headers (ibfd
, obfd
);
2468 if (add_sections
!= NULL
)
2470 struct section_add
*padd
;
2471 struct section_list
*pset
;
2473 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2477 pset
= find_section_list (padd
->name
, FALSE
,
2478 SECTION_CONTEXT_SET_FLAGS
);
2480 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2482 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2484 /* bfd_make_section_with_flags() does not return very helpful
2485 error codes, so check for the most likely user error first. */
2486 if (bfd_get_section_by_name (obfd
, padd
->name
))
2488 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2489 _("can't add section '%s'"), padd
->name
);
2494 /* We use LINKER_CREATED here so that the backend hooks
2495 will create any special section type information,
2496 instead of presuming we know what we're doing merely
2497 because we set the flags. */
2498 padd
->section
= bfd_make_section_with_flags
2499 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2500 if (padd
->section
== NULL
)
2502 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2503 _("can't create section `%s'"),
2509 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2511 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2515 pset
= find_section_list (padd
->name
, FALSE
,
2516 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2518 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2520 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2524 pset
= find_section_list (padd
->name
, FALSE
,
2525 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2528 padd
->section
->lma
= pset
->lma_val
;
2530 if (! bfd_set_section_alignment
2531 (obfd
, padd
->section
,
2532 bfd_section_alignment (obfd
, padd
->section
)))
2534 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2541 if (update_sections
!= NULL
)
2543 struct section_add
*pupdate
;
2545 for (pupdate
= update_sections
;
2547 pupdate
= pupdate
->next
)
2549 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2550 if (pupdate
->section
== NULL
)
2552 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2556 osec
= pupdate
->section
->output_section
;
2557 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2559 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2567 /* This palaver is necessary because we must set the output
2568 section size first, before its contents are ready. */
2569 osec
= bfd_get_section_by_name (ibfd
, GNU_BUILD_ATTRS_SECTION_NAME
);
2570 if (osec
&& is_merged_note_section (ibfd
, osec
))
2574 size
= bfd_get_section_size (osec
);
2577 bfd_nonfatal_message (NULL
, ibfd
, osec
, _("warning: note section is empty"));
2578 merge_notes
= FALSE
;
2580 else if (! bfd_get_full_section_contents (ibfd
, osec
, & merged_notes
))
2582 bfd_nonfatal_message (NULL
, ibfd
, osec
, _("warning: could not load note section"));
2583 free (merged_notes
);
2584 merged_notes
= NULL
;
2585 merge_notes
= FALSE
;
2589 merged_size
= merge_gnu_build_notes (ibfd
, osec
, size
, merged_notes
);
2590 if (merged_size
== size
)
2592 /* Merging achieves nothing. */
2593 free (merged_notes
);
2594 merged_notes
= NULL
;
2595 merge_notes
= FALSE
;
2600 if (osec
->output_section
== NULL
2601 || ! bfd_set_section_size (obfd
, osec
->output_section
, merged_size
))
2603 bfd_nonfatal_message (NULL
, obfd
, osec
, _("warning: failed to set merged notes size"));
2604 free (merged_notes
);
2605 merged_notes
= NULL
;
2606 merge_notes
= FALSE
;
2614 if (dump_sections
!= NULL
)
2616 struct section_add
* pdump
;
2618 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2620 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2623 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2624 _("can't dump section '%s' - it does not exist"),
2629 if ((bfd_get_section_flags (ibfd
, osec
) & SEC_HAS_CONTENTS
) == 0)
2631 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2632 _("can't dump section - it has no contents"));
2636 bfd_size_type size
= bfd_get_section_size (osec
);
2639 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2640 _("can't dump section - it is empty"));
2645 f
= fopen (pdump
->filename
, FOPEN_WB
);
2648 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2649 _("could not open section dump file"));
2654 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
2656 if (fwrite (contents
, 1, size
, f
) != size
)
2658 non_fatal (_("error writing section contents to %s (error: %s)"),
2666 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2667 _("could not retrieve section contents"));
2674 if (gnu_debuglink_filename
!= NULL
)
2676 /* PR 15125: Give a helpful warning message if
2677 the debuglink section already exists, and
2678 allow the rest of the copy to complete. */
2679 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2681 non_fatal (_("%s: debuglink section already exists"),
2682 bfd_get_filename (obfd
));
2683 gnu_debuglink_filename
= NULL
;
2687 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2688 (obfd
, gnu_debuglink_filename
);
2690 if (gnu_debuglink_section
== NULL
)
2692 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2693 _("cannot create debug link section `%s'"),
2694 gnu_debuglink_filename
);
2698 /* Special processing for PE format files. We
2699 have no way to distinguish PE from COFF here. */
2700 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2702 bfd_vma debuglink_vma
;
2703 asection
* highest_section
;
2705 /* The PE spec requires that all sections be adjacent and sorted
2706 in ascending order of VMA. It also specifies that debug
2707 sections should be last. This is despite the fact that debug
2708 sections are not loaded into memory and so in theory have no
2711 This means that the debuglink section must be given a non-zero
2712 VMA which makes it contiguous with other debug sections. So
2713 walk the current section list, find the section with the
2714 highest VMA and start the debuglink section after that one. */
2715 for (osec
= obfd
->sections
, highest_section
= NULL
;
2719 && (highest_section
== NULL
2720 || osec
->vma
> highest_section
->vma
))
2721 highest_section
= osec
;
2723 if (highest_section
)
2724 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2725 + highest_section
->size
,
2726 /* FIXME: We ought to be using
2727 COFF_PAGE_SIZE here or maybe
2728 bfd_get_section_alignment() (if it
2729 was set) but since this is for PE
2730 and we know the required alignment
2731 it is easier just to hard code it. */
2734 /* Umm, not sure what to do in this case. */
2735 debuglink_vma
= 0x1000;
2737 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2742 c
= bfd_count_sections (obfd
);
2744 && (gap_fill_set
|| pad_to_set
))
2748 /* We must fill in gaps between the sections and/or we must pad
2749 the last section to a specified address. We do this by
2750 grabbing a list of the sections, sorting them by VMA, and
2751 increasing the section sizes as required to fill the gaps.
2752 We write out the gap contents below. */
2754 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2756 bfd_map_over_sections (obfd
, get_sections
, &set
);
2758 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2760 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2761 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2765 for (i
= 0; i
< c
- 1; i
++)
2769 bfd_vma gap_start
, gap_stop
;
2771 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2772 if ((flags
& SEC_HAS_CONTENTS
) == 0
2773 || (flags
& SEC_LOAD
) == 0)
2776 size
= bfd_section_size (obfd
, osections
[i
]);
2777 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2778 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2779 if (gap_start
< gap_stop
)
2781 if (! bfd_set_section_size (obfd
, osections
[i
],
2782 size
+ (gap_stop
- gap_start
)))
2784 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2785 _("Can't fill gap after section"));
2789 gaps
[i
] = gap_stop
- gap_start
;
2790 if (max_gap
< gap_stop
- gap_start
)
2791 max_gap
= gap_stop
- gap_start
;
2801 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2802 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2803 if (lma
+ size
< pad_to
)
2805 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2808 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2809 _("can't add padding"));
2814 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2815 if (max_gap
< pad_to
- (lma
+ size
))
2816 max_gap
= pad_to
- (lma
+ size
);
2822 /* Symbol filtering must happen after the output sections
2823 have been created, but before their contents are set. */
2825 if (convert_debugging
)
2826 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2828 if (strip_symbols
== STRIP_DEBUG
2829 || strip_symbols
== STRIP_ALL
2830 || strip_symbols
== STRIP_UNNEEDED
2831 || strip_symbols
== STRIP_NONDEBUG
2832 || strip_symbols
== STRIP_DWO
2833 || strip_symbols
== STRIP_NONDWO
2834 || discard_locals
!= LOCALS_UNDEF
2836 || htab_elements (strip_specific_htab
) != 0
2837 || htab_elements (keep_specific_htab
) != 0
2838 || htab_elements (localize_specific_htab
) != 0
2839 || htab_elements (globalize_specific_htab
) != 0
2840 || htab_elements (keepglobal_specific_htab
) != 0
2841 || htab_elements (weaken_specific_htab
) != 0
2842 || htab_elements (redefine_specific_htab
) != 0
2843 || prefix_symbols_string
2846 || convert_debugging
2847 || change_leading_char
2848 || remove_leading_char
2849 || section_rename_list
2853 /* Mark symbols used in output relocations so that they
2854 are kept, even if they are local labels or static symbols.
2856 Note we iterate over the input sections examining their
2857 relocations since the relocations for the output sections
2858 haven't been set yet. mark_symbols_used_in_relocations will
2859 ignore input sections which have no corresponding output
2861 if (strip_symbols
!= STRIP_ALL
)
2862 bfd_map_over_sections (ibfd
,
2863 mark_symbols_used_in_relocations
,
2865 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
2866 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2869 if (convert_debugging
&& dhandle
!= NULL
)
2871 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2878 bfd_set_symtab (obfd
, osympp
, symcount
);
2880 /* This has to happen before section positions are set. */
2881 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2883 /* This has to happen after the symbol table has been set. */
2884 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2886 if (add_sections
!= NULL
)
2888 struct section_add
*padd
;
2890 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2892 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2895 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2901 if (update_sections
!= NULL
)
2903 struct section_add
*pupdate
;
2905 for (pupdate
= update_sections
;
2907 pupdate
= pupdate
->next
)
2909 osec
= pupdate
->section
->output_section
;
2910 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2913 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2921 osec
= bfd_get_section_by_name (obfd
, GNU_BUILD_ATTRS_SECTION_NAME
);
2922 if (osec
&& is_merged_note_section (obfd
, osec
))
2924 if (! bfd_set_section_contents (obfd
, osec
, merged_notes
, 0, merged_size
))
2926 bfd_nonfatal_message (NULL
, obfd
, osec
, _("error: failed to copy merged notes into output"));
2930 else if (! is_strip
)
2931 bfd_nonfatal_message (NULL
, obfd
, osec
, _("could not find any mergeable note sections"));
2932 free (merged_notes
);
2933 merged_notes
= NULL
;
2934 merge_notes
= FALSE
;
2937 if (gnu_debuglink_filename
!= NULL
)
2939 if (! bfd_fill_in_gnu_debuglink_section
2940 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2942 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2943 _("cannot fill debug link section `%s'"),
2944 gnu_debuglink_filename
);
2949 if (gap_fill_set
|| pad_to_set
)
2953 /* Fill in the gaps. */
2956 buf
= (bfd_byte
*) xmalloc (max_gap
);
2957 memset (buf
, gap_fill
, max_gap
);
2959 c
= bfd_count_sections (obfd
);
2960 for (i
= 0; i
< c
; i
++)
2968 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2979 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2982 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2993 /* Allow the BFD backend to copy any private data it understands
2994 from the input BFD to the output BFD. This is done last to
2995 permit the routine to look at the filtered symbol table, which is
2996 important for the ECOFF code at least. */
2997 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2999 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3000 _("error copying private BFD data"));
3004 /* Switch to the alternate machine code. We have to do this at the
3005 very end, because we only initialize the header when we create
3006 the first section. */
3007 if (use_alt_mach_code
!= 0)
3009 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3011 non_fatal (_("this target does not support %lu alternative machine codes"),
3013 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3015 non_fatal (_("treating that number as an absolute e_machine value instead"));
3016 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3019 non_fatal (_("ignoring the alternative value"));
3026 /* Read each archive element in turn from IBFD, copy the
3027 contents to temp file, and keep the temp file handle.
3028 If 'force_output_target' is TRUE then make sure that
3029 all elements in the new archive are of the type
3033 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3034 bfd_boolean force_output_target
,
3035 const bfd_arch_info_type
*input_arch
)
3039 struct name_list
*next
;
3043 bfd
**ptr
= &obfd
->archive_head
;
3046 const char *filename
;
3048 /* Make a temp directory to hold the contents. */
3049 dir
= make_tempdir (bfd_get_filename (obfd
));
3051 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3054 if (strip_symbols
== STRIP_ALL
)
3055 obfd
->has_armap
= FALSE
;
3057 obfd
->has_armap
= ibfd
->has_armap
;
3058 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3061 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3065 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3067 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3070 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3071 goto cleanup_and_exit
;
3074 while (!status
&& this_element
!= NULL
)
3080 int stat_status
= 0;
3081 bfd_boolean del
= TRUE
;
3082 bfd_boolean ok_object
;
3084 /* PR binutils/17533: Do not allow directory traversal
3085 outside of the current directory tree by archive members. */
3086 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3088 non_fatal (_("illegal pathname found in archive member: %s"),
3089 bfd_get_filename (this_element
));
3091 goto cleanup_and_exit
;
3094 /* Create an output file for this member. */
3095 output_name
= concat (dir
, "/",
3096 bfd_get_filename (this_element
), (char *) 0);
3098 /* If the file already exists, make another temp dir. */
3099 if (stat (output_name
, &buf
) >= 0)
3101 output_name
= make_tempdir (output_name
);
3102 if (output_name
== NULL
)
3104 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3107 goto cleanup_and_exit
;
3110 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3111 l
->name
= output_name
;
3115 output_name
= concat (output_name
, "/",
3116 bfd_get_filename (this_element
), (char *) 0);
3121 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3123 if (stat_status
!= 0)
3124 non_fatal (_("internal stat error on %s"),
3125 bfd_get_filename (this_element
));
3128 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3129 l
->name
= output_name
;
3134 ok_object
= bfd_check_format (this_element
, bfd_object
);
3136 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3137 _("Unable to recognise the format of file"));
3139 /* PR binutils/3110: Cope with archives
3140 containing multiple target types. */
3141 if (force_output_target
|| !ok_object
)
3142 output_bfd
= bfd_openw (output_name
, output_target
);
3144 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3146 if (output_bfd
== NULL
)
3148 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3150 goto cleanup_and_exit
;
3155 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3157 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3158 /* Try again as an unknown object file. */
3160 else if (!bfd_close (output_bfd
))
3162 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3163 /* Error in new object file. Don't change archive. */
3170 del
= !copy_unknown_object (this_element
, output_bfd
);
3171 if (!bfd_close_all_done (output_bfd
))
3173 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3174 /* Error in new object file. Don't change archive. */
3181 unlink (output_name
);
3186 if (preserve_dates
&& stat_status
== 0)
3187 set_times (output_name
, &buf
);
3189 /* Open the newly output file and attach to our list. */
3190 output_bfd
= bfd_openr (output_name
, output_target
);
3192 l
->obfd
= output_bfd
;
3195 ptr
= &output_bfd
->archive_next
;
3197 last_element
= this_element
;
3199 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3201 bfd_close (last_element
);
3206 filename
= bfd_get_filename (obfd
);
3207 if (!bfd_close (obfd
))
3210 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3213 filename
= bfd_get_filename (ibfd
);
3214 if (!bfd_close (ibfd
))
3217 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3221 /* Delete all the files that we opened. */
3222 for (l
= list
; l
!= NULL
; l
= l
->next
)
3224 if (l
->obfd
== NULL
)
3228 bfd_close (l
->obfd
);
3237 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3239 /* This is only relevant to Coff targets. */
3240 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3243 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3244 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3245 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3249 /* The top-level control. */
3252 copy_file (const char *input_filename
, const char *output_filename
,
3253 const char *input_target
, const char *output_target
,
3254 const bfd_arch_info_type
*input_arch
)
3257 char **obj_matching
;
3258 char **core_matching
;
3259 off_t size
= get_file_size (input_filename
);
3264 non_fatal (_("error: the input file '%s' is empty"),
3270 /* To allow us to do "strip *" without dying on the first
3271 non-object file, failures are nonfatal. */
3272 ibfd
= bfd_openr (input_filename
, input_target
);
3275 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3280 switch (do_debug_sections
)
3284 case compress_gnu_zlib
:
3285 case compress_gabi_zlib
:
3286 ibfd
->flags
|= BFD_COMPRESS
;
3287 /* Don't check if input is ELF here since this information is
3288 only available after bfd_check_format_matches is called. */
3289 if (do_debug_sections
!= compress_gnu_zlib
)
3290 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3293 ibfd
->flags
|= BFD_DECOMPRESS
;
3299 switch (do_elf_stt_common
)
3301 case elf_stt_common
:
3302 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3305 case no_elf_stt_common
:
3306 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3312 if (bfd_check_format (ibfd
, bfd_archive
))
3314 bfd_boolean force_output_target
;
3317 /* bfd_get_target does not return the correct value until
3318 bfd_check_format succeeds. */
3319 if (output_target
== NULL
)
3321 output_target
= bfd_get_target (ibfd
);
3322 force_output_target
= FALSE
;
3325 force_output_target
= TRUE
;
3327 obfd
= bfd_openw (output_filename
, output_target
);
3330 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3334 /* This is a no-op on non-Coff targets. */
3335 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3337 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3339 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3344 /* bfd_get_target does not return the correct value until
3345 bfd_check_format succeeds. */
3346 if (output_target
== NULL
)
3347 output_target
= bfd_get_target (ibfd
);
3349 obfd
= bfd_openw (output_filename
, output_target
);
3352 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3356 /* This is a no-op on non-Coff targets. */
3357 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3359 if (! copy_object (ibfd
, obfd
, input_arch
))
3362 /* PR 17512: file: 0f15796a.
3363 If the file could not be copied it may not be in a writeable
3364 state. So use bfd_close_all_done to avoid the possibility of
3365 writing uninitialised data into the file. */
3366 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3369 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3373 if (!bfd_close (ibfd
))
3376 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3382 bfd_error_type obj_error
= bfd_get_error ();
3383 bfd_error_type core_error
;
3385 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3387 /* This probably can't happen.. */
3388 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3389 free (obj_matching
);
3393 core_error
= bfd_get_error ();
3394 /* Report the object error in preference to the core error. */
3395 if (obj_error
!= core_error
)
3396 bfd_set_error (obj_error
);
3398 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3400 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3402 list_matching_formats (obj_matching
);
3403 free (obj_matching
);
3405 if (core_error
== bfd_error_file_ambiguously_recognized
)
3407 list_matching_formats (core_matching
);
3408 free (core_matching
);
3415 /* Add a name to the section renaming list. */
3418 add_section_rename (const char * old_name
, const char * new_name
,
3421 section_rename
* srename
;
3423 /* Check for conflicts first. */
3424 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3425 if (strcmp (srename
->old_name
, old_name
) == 0)
3427 /* Silently ignore duplicate definitions. */
3428 if (strcmp (srename
->new_name
, new_name
) == 0
3429 && srename
->flags
== flags
)
3432 fatal (_("Multiple renames of section %s"), old_name
);
3435 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3437 srename
->old_name
= old_name
;
3438 srename
->new_name
= new_name
;
3439 srename
->flags
= flags
;
3440 srename
->next
= section_rename_list
;
3442 section_rename_list
= srename
;
3445 /* Check the section rename list for a new name of the input section
3446 called OLD_NAME. Returns the new name if one is found and sets
3447 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3450 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3452 const section_rename
*srename
;
3454 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3455 if (strcmp (srename
->old_name
, old_name
) == 0)
3457 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3458 *returned_flags
= srename
->flags
;
3460 return srename
->new_name
;
3466 /* Once each of the sections is copied, we may still need to do some
3467 finalization work for private section headers. Do that here. */
3470 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3472 /* Allow the BFD backend to copy any private data it understands
3473 from the input section to the output section. */
3474 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3477 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3478 _("error in private header data"));
3482 /* All went well. */
3486 /* Create a section in OBFD with the same
3487 name and attributes as ISECTION in IBFD. */
3490 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3492 bfd
*obfd
= (bfd
*) obfdarg
;
3493 struct section_list
*p
;
3501 char *prefix
= NULL
;
3502 bfd_boolean make_nobits
;
3504 if (is_strip_section (ibfd
, isection
))
3507 /* Get the, possibly new, name of the output section. */
3508 name
= bfd_section_name (ibfd
, isection
);
3509 flags
= bfd_get_section_flags (ibfd
, isection
);
3510 name
= find_section_rename (name
, &flags
);
3512 /* Prefix sections. */
3513 if ((prefix_alloc_sections_string
)
3514 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3515 prefix
= prefix_alloc_sections_string
;
3516 else if (prefix_sections_string
)
3517 prefix
= prefix_sections_string
;
3523 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3529 make_nobits
= FALSE
;
3531 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3532 SECTION_CONTEXT_SET_FLAGS
);
3534 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3535 else if (strip_symbols
== STRIP_NONDEBUG
3536 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3537 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3539 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3540 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3544 /* Twiddle the input section flags so that it seems to
3545 elf.c:copy_private_bfd_data that section flags have not
3546 changed between input and output sections. This hack
3547 prevents wholesale rewriting of the program headers. */
3548 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3552 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3554 if (osection
== NULL
)
3556 err
= _("failed to create output section");
3561 elf_section_type (osection
) = SHT_NOBITS
;
3563 size
= bfd_section_size (ibfd
, isection
);
3564 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3566 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3567 else if (extract_symbol
)
3569 if (! bfd_set_section_size (obfd
, osection
, size
))
3571 err
= _("failed to set size");
3575 vma
= bfd_section_vma (ibfd
, isection
);
3576 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3577 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3580 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3586 vma
+= change_section_address
;
3588 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3590 err
= _("failed to set vma");
3594 lma
= isection
->lma
;
3595 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3596 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3599 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3605 lma
+= change_section_address
;
3607 osection
->lma
= lma
;
3609 /* FIXME: This is probably not enough. If we change the LMA we
3610 may have to recompute the header for the file as well. */
3611 if (!bfd_set_section_alignment (obfd
,
3613 bfd_section_alignment (ibfd
, isection
)))
3615 err
= _("failed to set alignment");
3619 /* Copy merge entity size. */
3620 osection
->entsize
= isection
->entsize
;
3622 /* Copy compress status. */
3623 osection
->compress_status
= isection
->compress_status
;
3625 /* This used to be mangle_section; we do here to avoid using
3626 bfd_get_section_by_name since some formats allow multiple
3627 sections with the same name. */
3628 isection
->output_section
= osection
;
3629 isection
->output_offset
= 0;
3631 if ((isection
->flags
& SEC_GROUP
) != 0)
3633 asymbol
*gsym
= group_signature (isection
);
3637 gsym
->flags
|= BSF_KEEP
;
3638 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3639 elf_group_id (isection
) = gsym
;
3643 /* Allow the BFD backend to copy any private data it understands
3644 from the input section to the output section. */
3645 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3647 err
= _("failed to copy private data");
3651 /* All went well. */
3656 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3659 /* Return TRUE if input section ISECTION should be skipped. */
3662 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
3668 /* If we have already failed earlier on,
3669 do not keep on generating complaints now. */
3676 if (is_strip_section (ibfd
, isection
))
3679 if (is_update_section (ibfd
, isection
))
3682 /* When merging a note section we skip the copying of the contents,
3683 but not the copying of the relocs associated with the contents. */
3684 if (skip_copy
&& is_merged_note_section (ibfd
, isection
))
3687 flags
= bfd_get_section_flags (ibfd
, isection
);
3688 if ((flags
& SEC_GROUP
) != 0)
3691 osection
= isection
->output_section
;
3692 size
= bfd_get_section_size (isection
);
3694 if (size
== 0 || osection
== 0)
3700 /* Add section SECTION_PATTERN to the list of sections that will have their
3701 relocations removed. */
3704 handle_remove_relocations_option (const char *section_pattern
)
3706 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
3709 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
3710 otherwise return FALSE. If the user has requested that relocations be
3711 removed from a section that does not have relocations then this
3712 function will still return TRUE. */
3715 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
3717 return (find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3718 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
3721 /* Wrapper for dealing with --remove-section (-R) command line arguments.
3722 A special case is detected here, if the user asks to remove a relocation
3723 section (one starting with ".rela." or ".rel.") then this removal must
3724 be done using a different technique. */
3727 handle_remove_section_option (const char *section_pattern
)
3729 if (strncmp (section_pattern
, ".rela.", 6) == 0)
3730 handle_remove_relocations_option (section_pattern
+ 5);
3731 else if (strncmp (section_pattern
, ".rel.", 5) == 0)
3732 handle_remove_relocations_option (section_pattern
+ 4);
3735 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
3736 sections_removed
= TRUE
;
3740 /* Copy relocations in input section ISECTION of IBFD to an output
3741 section with the same name in OBFDARG. If stripping then don't
3742 copy any relocation info. */
3745 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3747 bfd
*obfd
= (bfd
*) obfdarg
;
3753 if (skip_section (ibfd
, isection
, FALSE
))
3756 osection
= isection
->output_section
;
3758 /* Core files and DWO files do not need to be relocated. */
3759 if (bfd_get_format (obfd
) == bfd_core
3760 || strip_symbols
== STRIP_NONDWO
3761 || discard_relocations (ibfd
, isection
))
3765 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3769 /* Do not complain if the target does not support relocations. */
3770 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3775 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3783 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3784 osection
->flags
&= ~SEC_RELOC
;
3788 relpp
= (arelent
**) xmalloc (relsize
);
3789 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3793 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3794 _("relocation count is negative"));
3798 if (strip_symbols
== STRIP_ALL
)
3800 /* Remove relocations which are not in
3801 keep_strip_specific_list. */
3802 arelent
**temp_relpp
;
3803 long temp_relcount
= 0;
3806 temp_relpp
= (arelent
**) xmalloc (relsize
);
3807 for (i
= 0; i
< relcount
; i
++)
3809 /* PR 17512: file: 9e907e0c. */
3810 if (relpp
[i
]->sym_ptr_ptr
3812 && * relpp
[i
]->sym_ptr_ptr
)
3813 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3814 keep_specific_htab
))
3815 temp_relpp
[temp_relcount
++] = relpp
[i
];
3817 relcount
= temp_relcount
;
3822 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3825 osection
->flags
&= ~SEC_RELOC
;
3831 /* Copy the data of input section ISECTION of IBFD
3832 to an output section with the same name in OBFD. */
3835 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3837 bfd
*obfd
= (bfd
*) obfdarg
;
3838 struct section_list
*p
;
3842 if (skip_section (ibfd
, isection
, TRUE
))
3845 osection
= isection
->output_section
;
3846 /* The output SHF_COMPRESSED section size is different from input if
3847 ELF classes of input and output aren't the same. We can't use
3848 the output section size since --interleave will shrink the output
3849 section. Size will be updated if the section is converted. */
3850 size
= bfd_get_section_size (isection
);
3852 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3853 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3855 bfd_byte
*memhunk
= NULL
;
3857 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3858 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3862 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3869 /* We don't handle leftover bytes (too many possible behaviors,
3870 and we don't know what the user wants). The section length
3871 must be a multiple of the number of bytes to swap. */
3872 if ((size
% reverse_bytes
) == 0)
3877 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3878 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3880 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3883 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3884 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3888 /* User must pad the section up in order to do this. */
3889 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3890 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3895 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3896 char *from
= (char *) memhunk
+ copy_byte
;
3897 char *to
= (char *) memhunk
;
3898 char *end
= (char *) memhunk
+ size
;
3901 /* If the section address is not exactly divisible by the interleave,
3902 then we must bias the from address. If the copy_byte is less than
3903 the bias, then we must skip forward one interleave, and increment
3905 int extra
= isection
->lma
% interleave
;
3907 if (copy_byte
< extra
)
3910 for (; from
< end
; from
+= interleave
)
3911 for (i
= 0; i
< copy_width
; i
++)
3913 if (&from
[i
] >= end
)
3918 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3919 osection
->lma
/= interleave
;
3920 if (copy_byte
< extra
)
3924 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3927 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3933 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3934 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3935 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3937 void *memhunk
= xmalloc (size
);
3939 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3940 flag--they can just remove the section entirely and add it
3941 back again. However, we do permit them to turn on the
3942 SEC_HAS_CONTENTS flag, and take it to mean that the section
3943 contents should be zeroed out. */
3945 memset (memhunk
, 0, size
);
3946 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3949 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3957 /* Get all the sections. This is used when --gap-fill or --pad-to is
3961 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3963 asection
***secppp
= (asection
***) secppparg
;
3965 **secppp
= osection
;
3969 /* Sort sections by VMA. This is called via qsort, and is used when
3970 --gap-fill or --pad-to is used. We force non loadable or empty
3971 sections to the front, where they are easier to ignore. */
3974 compare_section_lma (const void *arg1
, const void *arg2
)
3976 const asection
*const *sec1
= (const asection
* const *) arg1
;
3977 const asection
*const *sec2
= (const asection
* const *) arg2
;
3978 flagword flags1
, flags2
;
3980 /* Sort non loadable sections to the front. */
3981 flags1
= (*sec1
)->flags
;
3982 flags2
= (*sec2
)->flags
;
3983 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3984 || (flags1
& SEC_LOAD
) == 0)
3986 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3987 && (flags2
& SEC_LOAD
) != 0)
3992 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3993 || (flags2
& SEC_LOAD
) == 0)
3997 /* Sort sections by LMA. */
3998 if ((*sec1
)->lma
> (*sec2
)->lma
)
4000 else if ((*sec1
)->lma
< (*sec2
)->lma
)
4003 /* Sort sections with the same LMA by size. */
4004 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
4006 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
4012 /* Mark all the symbols which will be used in output relocations with
4013 the BSF_KEEP flag so that those symbols will not be stripped.
4015 Ignore relocations which will not appear in the output file. */
4018 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4020 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4025 /* Ignore an input section with no corresponding output section. */
4026 if (isection
->output_section
== NULL
)
4029 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4032 /* Do not complain if the target does not support relocations. */
4033 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4035 bfd_fatal (bfd_get_filename (ibfd
));
4041 relpp
= (arelent
**) xmalloc (relsize
);
4042 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4044 bfd_fatal (bfd_get_filename (ibfd
));
4046 /* Examine each symbol used in a relocation. If it's not one of the
4047 special bfd section symbols, then mark it with BSF_KEEP. */
4048 for (i
= 0; i
< relcount
; i
++)
4050 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4051 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4052 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4053 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4054 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4055 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4056 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4063 /* Write out debugging information. */
4066 write_debugging_info (bfd
*obfd
, void *dhandle
,
4067 long *symcountp ATTRIBUTE_UNUSED
,
4068 asymbol
***symppp ATTRIBUTE_UNUSED
)
4070 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
4071 return write_ieee_debugging_info (obfd
, dhandle
);
4073 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4074 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4076 bfd_byte
*syms
, *strings
;
4077 bfd_size_type symsize
, stringsize
;
4078 asection
*stabsec
, *stabstrsec
;
4081 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4086 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4087 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4088 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4090 || stabstrsec
== NULL
4091 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
4092 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
4093 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
4094 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
4096 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4097 _("can't create debugging section"));
4101 /* We can get away with setting the section contents now because
4102 the next thing the caller is going to do is copy over the
4103 real sections. We may someday have to split the contents
4104 setting out of this function. */
4105 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4106 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4109 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4110 _("can't set debugging section contents"));
4117 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4118 _("don't know how to write debugging information for %s"),
4119 bfd_get_target (obfd
));
4123 /* If neither -D nor -U was specified explicitly,
4124 then use the configured default. */
4126 default_deterministic (void)
4128 if (deterministic
< 0)
4129 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4133 strip_main (int argc
, char *argv
[])
4135 char *input_target
= NULL
;
4136 char *output_target
= NULL
;
4137 bfd_boolean show_version
= FALSE
;
4138 bfd_boolean formats_info
= FALSE
;
4141 char *output_file
= NULL
;
4145 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4146 strip_options
, (int *) 0)) != EOF
)
4151 input_target
= optarg
;
4154 output_target
= optarg
;
4157 input_target
= output_target
= optarg
;
4160 handle_remove_section_option (optarg
);
4162 case OPTION_REMOVE_RELOCS
:
4163 handle_remove_relocations_option (optarg
);
4166 strip_symbols
= STRIP_ALL
;
4170 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4171 strip_symbols
= STRIP_DEBUG
;
4173 case OPTION_STRIP_DWO
:
4174 strip_symbols
= STRIP_DWO
;
4176 case OPTION_STRIP_UNNEEDED
:
4177 strip_symbols
= STRIP_UNNEEDED
;
4180 add_specific_symbol (optarg
, keep_specific_htab
);
4185 case OPTION_NO_MERGE_NOTES
:
4186 merge_notes
= FALSE
;
4189 add_specific_symbol (optarg
, strip_specific_htab
);
4192 output_file
= optarg
;
4195 preserve_dates
= TRUE
;
4198 deterministic
= TRUE
;
4201 deterministic
= FALSE
;
4204 discard_locals
= LOCALS_ALL
;
4207 discard_locals
= LOCALS_START_L
;
4213 show_version
= TRUE
;
4215 case OPTION_FORMATS_INFO
:
4216 formats_info
= TRUE
;
4218 case OPTION_ONLY_KEEP_DEBUG
:
4219 strip_symbols
= STRIP_NONDEBUG
;
4221 case OPTION_KEEP_FILE_SYMBOLS
:
4222 keep_file_symbols
= 1;
4225 /* We've been given a long option. */
4232 strip_usage (stdout
, 0);
4234 strip_usage (stderr
, 1);
4245 print_version ("strip");
4247 default_deterministic ();
4249 /* Default is to strip all symbols. */
4250 if (strip_symbols
== STRIP_UNDEF
4251 && discard_locals
== LOCALS_UNDEF
4252 && htab_elements (strip_specific_htab
) == 0)
4253 strip_symbols
= STRIP_ALL
;
4255 if (output_target
== NULL
)
4256 output_target
= input_target
;
4260 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4261 strip_usage (stderr
, 1);
4263 for (; i
< argc
; i
++)
4265 int hold_status
= status
;
4266 struct stat statbuf
;
4269 if (get_file_size (argv
[i
]) < 1)
4276 /* No need to check the return value of stat().
4277 It has already been checked in get_file_size(). */
4278 stat (argv
[i
], &statbuf
);
4280 if (output_file
== NULL
4281 || filename_cmp (argv
[i
], output_file
) == 0)
4282 tmpname
= make_tempname (argv
[i
]);
4284 tmpname
= output_file
;
4286 if (tmpname
== NULL
)
4288 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4289 _("could not create temporary file to hold stripped copy"));
4295 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4299 set_times (tmpname
, &statbuf
);
4300 if (output_file
!= tmpname
)
4301 status
= (smart_rename (tmpname
,
4302 output_file
? output_file
: argv
[i
],
4303 preserve_dates
) != 0);
4305 status
= hold_status
;
4308 unlink_if_ordinary (tmpname
);
4309 if (output_file
!= tmpname
)
4316 /* Set up PE subsystem. */
4319 set_pe_subsystem (const char *s
)
4321 const char *version
, *subsystem
;
4331 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4332 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4333 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4334 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4335 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4336 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4337 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4338 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4339 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4340 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4346 /* Check for the presence of a version number. */
4347 version
= strchr (s
, ':');
4348 if (version
== NULL
)
4352 int len
= version
- s
;
4356 version
= copy
+ 1 + len
;
4357 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4359 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4361 non_fatal (_("%s: bad version in PE subsystem"), s
);
4364 /* Check for numeric subsystem. */
4365 value
= (short) strtol (subsystem
, ©
, 0);
4368 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4369 if (v
[i
].value
== value
)
4371 pe_subsystem
= value
;
4372 set_def
= v
[i
].set_def
;
4378 /* Search for subsystem by name. */
4379 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4380 if (strcmp (subsystem
, v
[i
].name
) == 0)
4382 pe_subsystem
= v
[i
].value
;
4383 set_def
= v
[i
].set_def
;
4391 fatal (_("unknown PE subsystem: %s"), s
);
4396 if (pe_file_alignment
== (bfd_vma
) -1)
4397 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4398 if (pe_section_alignment
== (bfd_vma
) -1)
4399 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4403 free ((char *) subsystem
);
4406 /* Convert EFI target to PEI target. */
4409 convert_efi_target (char *efi
)
4415 if (strcmp (efi
+ 4, "ia32") == 0)
4417 /* Change ia32 to i386. */
4422 else if (strcmp (efi
+ 4, "x86_64") == 0)
4424 /* Change x86_64 to x86-64. */
4429 /* Allocate and return a pointer to a struct section_add, initializing the
4430 structure using ARG, a string in the format "sectionname=filename".
4431 The returned structure will have its next pointer set to NEXT. The
4432 OPTION field is the name of the command line option currently being
4433 parsed, and is only used if an error needs to be reported. */
4435 static struct section_add
*
4436 init_section_add (const char *arg
,
4437 struct section_add
*next
,
4440 struct section_add
*pa
;
4443 s
= strchr (arg
, '=');
4445 fatal (_("bad format for %s"), option
);
4447 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4448 pa
->name
= xstrndup (arg
, s
- arg
);
4449 pa
->filename
= s
+ 1;
4451 pa
->contents
= NULL
;
4457 /* Load the file specified in PA, allocating memory to hold the file
4458 contents, and store a pointer to the allocated memory in the contents
4459 field of PA. The size field of PA is also updated. All errors call
4463 section_add_load_file (struct section_add
*pa
)
4468 /* We don't use get_file_size so that we can do
4469 --add-section .note.GNU_stack=/dev/null
4470 get_file_size doesn't work on /dev/null. */
4472 f
= fopen (pa
->filename
, FOPEN_RB
);
4474 fatal (_("cannot open: %s: %s"),
4475 pa
->filename
, strerror (errno
));
4479 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
4487 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
4490 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
4492 fatal (_("%s: fread failed"), pa
->filename
);
4503 copy_main (int argc
, char *argv
[])
4505 char *input_filename
= NULL
;
4506 char *output_filename
= NULL
;
4508 char *input_target
= NULL
;
4509 char *output_target
= NULL
;
4510 bfd_boolean show_version
= FALSE
;
4511 bfd_boolean change_warn
= TRUE
;
4512 bfd_boolean formats_info
= FALSE
;
4514 struct stat statbuf
;
4515 const bfd_arch_info_type
*input_arch
= NULL
;
4517 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
4518 copy_options
, (int *) 0)) != EOF
)
4523 copy_byte
= atoi (optarg
);
4525 fatal (_("byte number must be non-negative"));
4529 input_arch
= bfd_scan_arch (optarg
);
4530 if (input_arch
== NULL
)
4531 fatal (_("architecture %s unknown"), optarg
);
4537 interleave
= atoi (optarg
);
4539 fatal (_("interleave must be positive"));
4545 case OPTION_INTERLEAVE_WIDTH
:
4546 copy_width
= atoi (optarg
);
4548 fatal(_("interleave width must be positive"));
4552 case 's': /* "source" - 'I' is preferred */
4553 input_target
= optarg
;
4557 case 'd': /* "destination" - 'O' is preferred */
4558 output_target
= optarg
;
4562 input_target
= output_target
= optarg
;
4566 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
4567 sections_copied
= TRUE
;
4571 handle_remove_section_option (optarg
);
4574 case OPTION_REMOVE_RELOCS
:
4575 handle_remove_relocations_option (optarg
);
4579 strip_symbols
= STRIP_ALL
;
4583 strip_symbols
= STRIP_DEBUG
;
4586 case OPTION_STRIP_DWO
:
4587 strip_symbols
= STRIP_DWO
;
4590 case OPTION_STRIP_UNNEEDED
:
4591 strip_symbols
= STRIP_UNNEEDED
;
4594 case OPTION_ONLY_KEEP_DEBUG
:
4595 strip_symbols
= STRIP_NONDEBUG
;
4598 case OPTION_KEEP_FILE_SYMBOLS
:
4599 keep_file_symbols
= 1;
4602 case OPTION_ADD_GNU_DEBUGLINK
:
4603 long_section_names
= ENABLE
;
4604 gnu_debuglink_filename
= optarg
;
4608 add_specific_symbol (optarg
, keep_specific_htab
);
4614 case OPTION_NO_MERGE_NOTES
:
4615 merge_notes
= FALSE
;
4619 add_specific_symbol (optarg
, strip_specific_htab
);
4622 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4623 add_specific_symbol (optarg
, strip_unneeded_htab
);
4627 add_specific_symbol (optarg
, localize_specific_htab
);
4630 case OPTION_GLOBALIZE_SYMBOL
:
4631 add_specific_symbol (optarg
, globalize_specific_htab
);
4635 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4639 add_specific_symbol (optarg
, weaken_specific_htab
);
4643 preserve_dates
= TRUE
;
4647 deterministic
= TRUE
;
4651 deterministic
= FALSE
;
4659 discard_locals
= LOCALS_ALL
;
4663 discard_locals
= LOCALS_START_L
;
4671 show_version
= TRUE
;
4674 case OPTION_FORMATS_INFO
:
4675 formats_info
= TRUE
;
4682 case OPTION_ADD_SECTION
:
4683 add_sections
= init_section_add (optarg
, add_sections
,
4685 section_add_load_file (add_sections
);
4688 case OPTION_UPDATE_SECTION
:
4689 update_sections
= init_section_add (optarg
, update_sections
,
4690 "--update-section");
4691 section_add_load_file (update_sections
);
4694 case OPTION_DUMP_SECTION
:
4695 dump_sections
= init_section_add (optarg
, dump_sections
,
4699 case OPTION_ADD_SYMBOL
:
4702 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4704 newsym
->next
= NULL
;
4705 s
= strchr (optarg
, '=');
4707 fatal (_("bad format for %s"), "--add-symbol");
4708 t
= strchr (s
+ 1, ':');
4710 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4713 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4714 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4718 newsym
->section
= NULL
;
4719 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4723 t
= strchr (t
+ 1, ',');
4724 newsym
->othersym
= NULL
;
4726 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4728 newsym
->flags
= BSF_GLOBAL
;
4730 /* Keep 'othersym' symbols at the front of the list. */
4731 if (newsym
->othersym
)
4733 newsym
->next
= add_sym_list
;
4735 add_sym_tail
= &newsym
->next
;
4736 add_sym_list
= newsym
;
4740 *add_sym_tail
= newsym
;
4741 add_sym_tail
= &newsym
->next
;
4747 case OPTION_CHANGE_START
:
4748 change_start
= parse_vma (optarg
, "--change-start");
4751 case OPTION_CHANGE_SECTION_ADDRESS
:
4752 case OPTION_CHANGE_SECTION_LMA
:
4753 case OPTION_CHANGE_SECTION_VMA
:
4755 struct section_list
* p
;
4756 unsigned int context
= 0;
4760 char *option
= NULL
;
4765 case OPTION_CHANGE_SECTION_ADDRESS
:
4766 option
= "--change-section-address";
4767 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4769 case OPTION_CHANGE_SECTION_LMA
:
4770 option
= "--change-section-lma";
4771 context
= SECTION_CONTEXT_ALTER_LMA
;
4773 case OPTION_CHANGE_SECTION_VMA
:
4774 option
= "--change-section-vma";
4775 context
= SECTION_CONTEXT_ALTER_VMA
;
4779 s
= strchr (optarg
, '=');
4782 s
= strchr (optarg
, '+');
4785 s
= strchr (optarg
, '-');
4787 fatal (_("bad format for %s"), option
);
4792 /* Correct the context. */
4795 case OPTION_CHANGE_SECTION_ADDRESS
:
4796 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4798 case OPTION_CHANGE_SECTION_LMA
:
4799 context
= SECTION_CONTEXT_SET_LMA
;
4801 case OPTION_CHANGE_SECTION_VMA
:
4802 context
= SECTION_CONTEXT_SET_VMA
;
4808 name
= (char *) xmalloc (len
+ 1);
4809 strncpy (name
, optarg
, len
);
4812 p
= find_section_list (name
, TRUE
, context
);
4814 val
= parse_vma (s
+ 1, option
);
4820 case OPTION_CHANGE_SECTION_ADDRESS
:
4824 case OPTION_CHANGE_SECTION_LMA
:
4828 case OPTION_CHANGE_SECTION_VMA
:
4835 case OPTION_CHANGE_ADDRESSES
:
4836 change_section_address
= parse_vma (optarg
, "--change-addresses");
4837 change_start
= change_section_address
;
4840 case OPTION_CHANGE_WARNINGS
:
4844 case OPTION_CHANGE_LEADING_CHAR
:
4845 change_leading_char
= TRUE
;
4848 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4851 if (strcasecmp (optarg
, "none") == 0)
4852 do_debug_sections
= decompress
;
4853 else if (strcasecmp (optarg
, "zlib") == 0)
4854 do_debug_sections
= compress_zlib
;
4855 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4856 do_debug_sections
= compress_gnu_zlib
;
4857 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4858 do_debug_sections
= compress_gabi_zlib
;
4860 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4864 do_debug_sections
= compress
;
4867 case OPTION_DEBUGGING
:
4868 convert_debugging
= TRUE
;
4871 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4872 do_debug_sections
= decompress
;
4875 case OPTION_ELF_STT_COMMON
:
4876 if (strcasecmp (optarg
, "yes") == 0)
4877 do_elf_stt_common
= elf_stt_common
;
4878 else if (strcasecmp (optarg
, "no") == 0)
4879 do_elf_stt_common
= no_elf_stt_common
;
4881 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4885 case OPTION_GAP_FILL
:
4887 bfd_vma gap_fill_vma
;
4889 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4890 gap_fill
= (bfd_byte
) gap_fill_vma
;
4891 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4895 sprintf_vma (buff
, gap_fill_vma
);
4897 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4900 gap_fill_set
= TRUE
;
4904 case OPTION_NO_CHANGE_WARNINGS
:
4905 change_warn
= FALSE
;
4909 pad_to
= parse_vma (optarg
, "--pad-to");
4913 case OPTION_REMOVE_LEADING_CHAR
:
4914 remove_leading_char
= TRUE
;
4917 case OPTION_REDEFINE_SYM
:
4919 /* Insert this redefinition onto redefine_specific_htab. */
4923 const char *nextarg
;
4924 char *source
, *target
;
4926 s
= strchr (optarg
, '=');
4928 fatal (_("bad format for %s"), "--redefine-sym");
4931 source
= (char *) xmalloc (len
+ 1);
4932 strncpy (source
, optarg
, len
);
4936 len
= strlen (nextarg
);
4937 target
= (char *) xmalloc (len
+ 1);
4938 strcpy (target
, nextarg
);
4940 add_redefine_and_check ("--redefine-sym", source
, target
);
4947 case OPTION_REDEFINE_SYMS
:
4948 add_redefine_syms_file (optarg
);
4951 case OPTION_SET_SECTION_FLAGS
:
4953 struct section_list
*p
;
4958 s
= strchr (optarg
, '=');
4960 fatal (_("bad format for %s"), "--set-section-flags");
4963 name
= (char *) xmalloc (len
+ 1);
4964 strncpy (name
, optarg
, len
);
4967 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4969 p
->flags
= parse_flags (s
+ 1);
4973 case OPTION_RENAME_SECTION
:
4976 const char *eq
, *fl
;
4981 eq
= strchr (optarg
, '=');
4983 fatal (_("bad format for %s"), "--rename-section");
4987 fatal (_("bad format for %s"), "--rename-section");
4989 old_name
= (char *) xmalloc (len
+ 1);
4990 strncpy (old_name
, optarg
, len
);
4994 fl
= strchr (eq
, ',');
4997 flags
= parse_flags (fl
+ 1);
5007 fatal (_("bad format for %s"), "--rename-section");
5009 new_name
= (char *) xmalloc (len
+ 1);
5010 strncpy (new_name
, eq
, len
);
5013 add_section_rename (old_name
, new_name
, flags
);
5017 case OPTION_SET_START
:
5018 set_start
= parse_vma (optarg
, "--set-start");
5019 set_start_set
= TRUE
;
5022 case OPTION_SREC_LEN
:
5023 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5026 case OPTION_SREC_FORCES3
:
5027 _bfd_srec_forceS3
= TRUE
;
5030 case OPTION_STRIP_SYMBOLS
:
5031 add_specific_symbols (optarg
, strip_specific_htab
);
5034 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5035 add_specific_symbols (optarg
, strip_unneeded_htab
);
5038 case OPTION_KEEP_SYMBOLS
:
5039 add_specific_symbols (optarg
, keep_specific_htab
);
5042 case OPTION_LOCALIZE_HIDDEN
:
5043 localize_hidden
= TRUE
;
5046 case OPTION_LOCALIZE_SYMBOLS
:
5047 add_specific_symbols (optarg
, localize_specific_htab
);
5050 case OPTION_LONG_SECTION_NAMES
:
5051 if (!strcmp ("enable", optarg
))
5052 long_section_names
= ENABLE
;
5053 else if (!strcmp ("disable", optarg
))
5054 long_section_names
= DISABLE
;
5055 else if (!strcmp ("keep", optarg
))
5056 long_section_names
= KEEP
;
5058 fatal (_("unknown long section names option '%s'"), optarg
);
5061 case OPTION_GLOBALIZE_SYMBOLS
:
5062 add_specific_symbols (optarg
, globalize_specific_htab
);
5065 case OPTION_KEEPGLOBAL_SYMBOLS
:
5066 add_specific_symbols (optarg
, keepglobal_specific_htab
);
5069 case OPTION_WEAKEN_SYMBOLS
:
5070 add_specific_symbols (optarg
, weaken_specific_htab
);
5073 case OPTION_ALT_MACH_CODE
:
5074 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5075 if (use_alt_mach_code
== 0)
5076 fatal (_("unable to parse alternative machine code"));
5079 case OPTION_PREFIX_SYMBOLS
:
5080 prefix_symbols_string
= optarg
;
5083 case OPTION_PREFIX_SECTIONS
:
5084 prefix_sections_string
= optarg
;
5087 case OPTION_PREFIX_ALLOC_SECTIONS
:
5088 prefix_alloc_sections_string
= optarg
;
5091 case OPTION_READONLY_TEXT
:
5092 bfd_flags_to_set
|= WP_TEXT
;
5093 bfd_flags_to_clear
&= ~WP_TEXT
;
5096 case OPTION_WRITABLE_TEXT
:
5097 bfd_flags_to_clear
|= WP_TEXT
;
5098 bfd_flags_to_set
&= ~WP_TEXT
;
5102 bfd_flags_to_set
|= D_PAGED
;
5103 bfd_flags_to_clear
&= ~D_PAGED
;
5107 bfd_flags_to_clear
|= D_PAGED
;
5108 bfd_flags_to_set
&= ~D_PAGED
;
5111 case OPTION_EXTRACT_DWO
:
5112 strip_symbols
= STRIP_NONDWO
;
5115 case OPTION_EXTRACT_SYMBOL
:
5116 extract_symbol
= TRUE
;
5119 case OPTION_REVERSE_BYTES
:
5121 int prev
= reverse_bytes
;
5123 reverse_bytes
= atoi (optarg
);
5124 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5125 fatal (_("number of bytes to reverse must be positive and even"));
5127 if (prev
&& prev
!= reverse_bytes
)
5128 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5133 case OPTION_FILE_ALIGNMENT
:
5134 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5140 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5142 || (*end
!= '.' && *end
!= '\0'))
5143 non_fatal (_("%s: invalid reserve value for --heap"),
5145 else if (*end
!= '\0')
5147 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5149 non_fatal (_("%s: invalid commit value for --heap"),
5155 case OPTION_IMAGE_BASE
:
5156 pe_image_base
= parse_vma (optarg
, "--image-base");
5159 case OPTION_SECTION_ALIGNMENT
:
5160 pe_section_alignment
= parse_vma (optarg
,
5161 "--section-alignment");
5164 case OPTION_SUBSYSTEM
:
5165 set_pe_subsystem (optarg
);
5171 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5173 || (*end
!= '.' && *end
!= '\0'))
5174 non_fatal (_("%s: invalid reserve value for --stack"),
5176 else if (*end
!= '\0')
5178 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5180 non_fatal (_("%s: invalid commit value for --stack"),
5187 /* We've been given a long option. */
5192 copy_usage (stdout
, 0);
5195 copy_usage (stderr
, 1);
5206 print_version ("objcopy");
5208 if (interleave
&& copy_byte
== -1)
5209 fatal (_("interleave start byte must be set with --byte"));
5211 if (copy_byte
>= interleave
)
5212 fatal (_("byte number must be less than interleave"));
5214 if (copy_width
> interleave
- copy_byte
)
5215 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5217 if (optind
== argc
|| optind
+ 2 < argc
)
5218 copy_usage (stderr
, 1);
5220 input_filename
= argv
[optind
];
5221 if (optind
+ 1 < argc
)
5222 output_filename
= argv
[optind
+ 1];
5224 default_deterministic ();
5226 /* Default is to strip no symbols. */
5227 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5228 strip_symbols
= STRIP_NONE
;
5230 if (output_target
== NULL
)
5231 output_target
= input_target
;
5233 /* Convert input EFI target to PEI target. */
5234 if (input_target
!= NULL
5235 && strncmp (input_target
, "efi-", 4) == 0)
5239 efi
= xstrdup (output_target
+ 4);
5240 if (strncmp (efi
, "bsdrv-", 6) == 0
5241 || strncmp (efi
, "rtdrv-", 6) == 0)
5243 else if (strncmp (efi
, "app-", 4) != 0)
5244 fatal (_("unknown input EFI target: %s"), input_target
);
5247 convert_efi_target (efi
);
5250 /* Convert output EFI target to PEI target. */
5251 if (output_target
!= NULL
5252 && strncmp (output_target
, "efi-", 4) == 0)
5256 efi
= xstrdup (output_target
+ 4);
5257 if (strncmp (efi
, "app-", 4) == 0)
5259 if (pe_subsystem
== -1)
5260 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5262 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5264 if (pe_subsystem
== -1)
5265 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5268 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5270 if (pe_subsystem
== -1)
5271 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5275 fatal (_("unknown output EFI target: %s"), output_target
);
5277 if (pe_file_alignment
== (bfd_vma
) -1)
5278 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5279 if (pe_section_alignment
== (bfd_vma
) -1)
5280 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5282 output_target
= efi
;
5283 convert_efi_target (efi
);
5287 if (stat (input_filename
, & statbuf
) < 0)
5288 fatal (_("warning: could not locate '%s'. System error message: %s"),
5289 input_filename
, strerror (errno
));
5291 /* If there is no destination file, or the source and destination files
5292 are the same, then create a temp and rename the result into the input. */
5293 if (output_filename
== NULL
5294 || filename_cmp (input_filename
, output_filename
) == 0)
5295 tmpname
= make_tempname (input_filename
);
5297 tmpname
= output_filename
;
5299 if (tmpname
== NULL
)
5300 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5301 input_filename
, strerror (errno
));
5303 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5307 set_times (tmpname
, &statbuf
);
5308 if (tmpname
!= output_filename
)
5309 status
= (smart_rename (tmpname
, input_filename
,
5310 preserve_dates
) != 0);
5313 unlink_if_ordinary (tmpname
);
5315 if (tmpname
!= output_filename
)
5320 struct section_list
*p
;
5322 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5326 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5330 sprintf_vma (buff
, p
->vma_val
);
5332 /* xgettext:c-format */
5333 non_fatal (_("%s %s%c0x%s never used"),
5334 "--change-section-vma",
5336 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5340 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5344 sprintf_vma (buff
, p
->lma_val
);
5346 /* xgettext:c-format */
5347 non_fatal (_("%s %s%c0x%s never used"),
5348 "--change-section-lma",
5350 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5361 main (int argc
, char *argv
[])
5363 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5364 setlocale (LC_MESSAGES
, "");
5366 #if defined (HAVE_SETLOCALE)
5367 setlocale (LC_CTYPE
, "");
5369 bindtextdomain (PACKAGE
, LOCALEDIR
);
5370 textdomain (PACKAGE
);
5372 program_name
= argv
[0];
5373 xmalloc_set_program_name (program_name
);
5375 START_PROGRESS (program_name
, 0);
5377 expandargv (&argc
, &argv
);
5379 strip_symbols
= STRIP_UNDEF
;
5380 discard_locals
= LOCALS_UNDEF
;
5383 set_default_bfd_target ();
5387 int i
= strlen (program_name
);
5388 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5389 /* Drop the .exe suffix, if any. */
5390 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
5393 program_name
[i
] = '\0';
5396 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
5399 create_symbol_htabs ();
5402 bfd_set_error_program_name (argv
[0]);
5405 strip_main (argc
, argv
);
5407 copy_main (argc
, argv
);
5409 END_PROGRESS (program_name
);