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_notes_seen
= 0;
1919 bfd_boolean duplicate_found
= FALSE
;
1920 const char * err
= NULL
;
1921 bfd_byte
* in
= contents
;
1923 /* Make a copy of the notes.
1924 Minimum size of a note is 12 bytes. */
1925 pnote
= pnotes
= (Elf_Internal_Note
*) xcalloc ((size
/ 12), sizeof (Elf_Internal_Note
));
1926 while (remain
>= 12)
1928 pnote
->namesz
= (bfd_get_32 (abfd
, in
) + 3) & ~3;
1929 pnote
->descsz
= (bfd_get_32 (abfd
, in
+ 4) + 3) & ~3;
1930 pnote
->type
= bfd_get_32 (abfd
, in
+ 8);
1932 if (pnote
->type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
1933 && pnote
->type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
1935 err
= _("corrupt GNU build attribute note: wrong note type");
1939 if (pnote
->namesz
+ pnote
->descsz
+ 12 > remain
)
1941 err
= _("corrupt GNU build attribute note: note too big");
1945 if (pnote
->namesz
< 2)
1947 err
= _("corrupt GNU build attribute note: name too small");
1951 if (pnote
->descsz
!= 0
1952 && pnote
->descsz
!= 4
1953 && pnote
->descsz
!= 8)
1955 err
= _("corrupt GNU build attribute note: bad description size");
1959 pnote
->namedata
= (char *)(in
+ 12);
1960 pnote
->descdata
= (char *)(in
+ 12 + pnote
->namesz
);
1962 remain
-= 12 + pnote
->namesz
+ pnote
->descsz
;
1963 in
+= 12 + pnote
->namesz
+ pnote
->descsz
;
1965 if (pnote
->namedata
[pnote
->namesz
- 1] != 0)
1967 err
= _("corrupt GNU build attribute note: name not NUL terminated");
1971 if (pnote
->namesz
> 1 && pnote
->namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
)
1972 ++ version_notes_seen
;
1978 /* Check that the notes are valid. */
1981 err
= _("corrupt GNU build attribute notes: data at end");
1985 if (version_notes_seen
== 0)
1987 err
= _("bad GNU build attribute notes: no version note");
1991 /* Merging is only needed if there is more than one version note... */
1992 if (version_notes_seen
== 1)
1995 /* The first note should be the first version note. */
1996 if (pnotes
[0].namedata
[1] != GNU_BUILD_ATTRIBUTE_VERSION
)
1998 err
= _("bad GNU build attribute notes: first note not version note");
2002 if (pnotes
[0].namedata
[0] != GNU_BUILD_ATTRIBUTE_TYPE_STRING
2003 || pnotes
[0].namedata
[2] != '1')
2005 err
= _("bad GNU build attribute notes: version note not v1");
2009 /* Now merge the notes. The rules are:
2010 1. Preserve the ordering of the notes.
2011 2. Preserve any NT_GNU_BUILD_ATTRIBUTE_FUNC notes.
2012 3. Eliminate any NT_GNU_BUILD_ATTRIBUTE_OPEN notes that have the same
2013 full name field as the immediately preceeding note with the same type
2015 4. Combine the numeric value of any NT_GNU_BUILD_ATTRIBUTE_OPEN notes
2016 of type GNU_BUILD_ATTRIBUTE_STACK_SIZE.
2017 5. If an NT_GNU_BUILD_ATTRIBUTE_OPEN note is going to be preserved and
2018 its description field is empty then the nearest preceeding OPEN note
2019 with a non-empty description field must also be preserved *OR* the
2020 description field of the note must be changed to contain the starting
2021 address to which it refers. */
2022 for (pnote
= pnotes
+ 1; pnote
< pnotes_end
; pnote
++)
2024 Elf_Internal_Note
* back
;
2025 Elf_Internal_Note
* prev_open
= NULL
;
2027 if (pnote
->type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2030 /* Scan for duplicates. Clear the type field of any found - but do not
2031 delete them just yet. */
2032 for (back
= pnote
- 1; back
>= pnotes
; back
--)
2034 if (back
->descsz
> 0
2035 && back
->type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
2036 && prev_open
== NULL
)
2039 if (back
->type
== pnote
->type
2040 && back
->namedata
[1] == pnote
->namedata
[1])
2042 if (back
->namedata
[1] == GNU_BUILD_ATTRIBUTE_STACK_SIZE
)
2044 unsigned char * name
;
2045 unsigned long note_val
;
2046 unsigned long back_val
;
2051 for (shift
= 0, note_val
= 0, bytes
= pnote
->namesz
- 2, name
= (unsigned char *) pnote
->namedata
+ 2;
2054 byte
= (* name
++) & 0xff;
2055 note_val
|= byte
<< shift
;
2058 for (shift
= 0, back_val
= 0, bytes
= back
->namesz
- 2, name
= (unsigned char *) back
->namedata
+ 2;
2061 byte
= (* name
++) & 0xff;
2062 back_val
|= byte
<< shift
;
2065 back_val
+= note_val
;
2066 if (num_bytes (back_val
) >= back
->namesz
- 2)
2068 /* We have a problem - the new value requires more bytes of
2069 storage in the name field than are available. Currently
2070 we have no way of fixing this, so we just preserve both
2074 /* Write the new val into back. */
2075 name
= (unsigned char *) back
->namedata
+ 2;
2076 while (name
< (unsigned char *) back
->namedata
+ back
->namesz
)
2078 byte
= back_val
& 0xff;
2085 duplicate_found
= TRUE
;
2090 if (back
->namesz
== pnote
->namesz
2091 && memcmp (back
->namedata
, pnote
->namedata
, back
->namesz
) == 0)
2093 duplicate_found
= TRUE
;
2098 /* If we have found an attribute match then stop searching backwards. */
2099 if (! ISPRINT (back
->namedata
[1])
2100 /* Names are NUL terminated, so this is safe. */
2101 || strcmp (back
->namedata
+ 2, pnote
->namedata
+ 2) == 0)
2103 /* Since we are keeping this note we must check to see if its
2104 description refers back to an earlier OPEN version note. If so
2105 then we must make sure that version note is also preserved. */
2106 if (pnote
->descsz
== 0
2107 && prev_open
!= NULL
2108 && prev_open
->type
== 0)
2109 prev_open
->type
= NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2117 if (duplicate_found
)
2119 bfd_byte
* new_contents
;
2122 bfd_size_type new_size
;
2123 arelent
** relpp
= NULL
;
2127 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2130 /* If there are relocs associated with this section then we may
2131 have to adjust them as well, as we remove notes. */
2132 relpp
= (arelent
**) xmalloc (relsize
);
2133 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2135 /* Do not bother complaining here - copy_relocations_in_section
2136 will do that for us. */
2140 /* Eliminate the duplicates. */
2141 new = new_contents
= xmalloc (size
);
2142 for (pnote
= pnotes
, old
= contents
;
2146 bfd_size_type note_size
= 12 + pnote
->namesz
+ pnote
->descsz
;
2148 if (pnote
->type
== 0)
2154 /* If there is a reloc at the current offset, delete it.
2155 Adjust the location of any relocs above the current
2156 location downwards by the size of the note being deleted.
2157 FIXME: We could optimize this loop by retaining a pointer to
2158 the last reloc below the current note. */
2159 for (rel
= relpp
; rel
< relpp
+ relcount
; rel
++)
2161 if ((* rel
)->howto
== NULL
)
2163 if ((* rel
)->address
< (bfd_vma
) (new - new_contents
))
2165 if ((* rel
)->address
>= (bfd_vma
) ((new + note_size
) - new_contents
))
2166 (* rel
)->address
-= note_size
;
2168 (* rel
)->howto
= NULL
;
2174 memcpy (new, old
, note_size
);
2181 new_size
= new - new_contents
;
2182 memcpy (contents
, new_contents
, new_size
);
2184 free (new_contents
);
2188 arelent
**rel
= relpp
;
2190 while (rel
< relpp
+ relcount
)
2191 if ((*rel
)->howto
!= NULL
)
2195 /* Delete eliminated relocs.
2196 FIXME: There are better ways to do this. */
2197 memmove (rel
, rel
+ 1,
2198 ((relcount
- (rel
- relpp
)) - 1) * sizeof (*rel
));
2201 bfd_set_reloc (abfd
, sec
, relpp
, relcount
);
2208 bfd_set_error (bfd_error_bad_value
);
2209 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2217 /* Copy object file IBFD onto OBFD.
2218 Returns TRUE upon success, FALSE otherwise. */
2221 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2225 asection
**osections
= NULL
;
2227 asection
*gnu_debuglink_section
= NULL
;
2228 bfd_size_type
*gaps
= NULL
;
2229 bfd_size_type max_gap
= 0;
2232 enum bfd_architecture iarch
;
2236 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2237 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2238 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2240 /* PR 17636: Call non-fatal so that we return to our parent who
2241 may need to tidy temporary files. */
2242 non_fatal (_("Unable to change endianness of input file(s)"));
2246 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2248 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2252 if (ibfd
->sections
== NULL
)
2254 non_fatal (_("error: the input file '%s' has no sections"),
2255 bfd_get_archive_filename (ibfd
));
2259 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
2261 if ((do_debug_sections
& compress
) != 0
2262 && do_debug_sections
!= compress
)
2264 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2265 bfd_get_archive_filename (ibfd
));
2269 if (do_elf_stt_common
)
2271 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2272 bfd_get_archive_filename (ibfd
));
2278 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2279 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2280 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2289 start
= bfd_get_start_address (ibfd
);
2290 start
+= change_start
;
2293 /* Neither the start address nor the flags
2294 need to be set for a core file. */
2295 if (bfd_get_format (obfd
) != bfd_core
)
2299 flags
= bfd_get_file_flags (ibfd
);
2300 flags
|= bfd_flags_to_set
;
2301 flags
&= ~bfd_flags_to_clear
;
2302 flags
&= bfd_applicable_file_flags (obfd
);
2304 if (strip_symbols
== STRIP_ALL
)
2305 flags
&= ~HAS_RELOC
;
2307 if (!bfd_set_start_address (obfd
, start
)
2308 || !bfd_set_file_flags (obfd
, flags
))
2310 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2315 /* Copy architecture of input file to output file. */
2316 iarch
= bfd_get_arch (ibfd
);
2317 imach
= bfd_get_mach (ibfd
);
2320 if (bfd_get_arch_info (ibfd
) == NULL
2321 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
2323 iarch
= input_arch
->arch
;
2324 imach
= input_arch
->mach
;
2327 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2328 bfd_get_archive_filename (ibfd
));
2330 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2331 && (ibfd
->target_defaulted
2332 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2334 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2335 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2336 bfd_get_archive_filename (ibfd
));
2338 non_fatal (_("Output file cannot represent architecture `%s'"),
2339 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2340 bfd_get_mach (ibfd
)));
2344 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2346 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2350 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2351 && bfd_pei_p (obfd
))
2353 /* Set up PE parameters. */
2354 pe_data_type
*pe
= pe_data (obfd
);
2356 /* Copy PE parameters before changing them. */
2357 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
2358 && bfd_pei_p (ibfd
))
2359 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2361 if (pe_file_alignment
!= (bfd_vma
) -1)
2362 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2364 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2366 if (pe_heap_commit
!= (bfd_vma
) -1)
2367 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2369 if (pe_heap_reserve
!= (bfd_vma
) -1)
2370 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2372 if (pe_image_base
!= (bfd_vma
) -1)
2373 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2375 if (pe_section_alignment
!= (bfd_vma
) -1)
2376 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2378 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2380 if (pe_stack_commit
!= (bfd_vma
) -1)
2381 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2383 if (pe_stack_reserve
!= (bfd_vma
) -1)
2384 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2386 if (pe_subsystem
!= -1)
2387 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2389 if (pe_major_subsystem_version
!= -1)
2390 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2392 if (pe_minor_subsystem_version
!= -1)
2393 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2395 if (pe_file_alignment
> pe_section_alignment
)
2397 char file_alignment
[20], section_alignment
[20];
2399 sprintf_vma (file_alignment
, pe_file_alignment
);
2400 sprintf_vma (section_alignment
, pe_section_alignment
);
2401 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2403 file_alignment
, section_alignment
);
2410 if (osympp
!= isympp
)
2416 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2419 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2423 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2424 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2427 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2430 /* PR 17512: file: d6323821
2431 If the symbol table could not be loaded do not pretend that we have
2432 any symbols. This trips us up later on when we load the relocs. */
2436 osympp
= isympp
= NULL
;
2439 /* BFD mandates that all output sections be created and sizes set before
2440 any output is done. Thus, we traverse all sections multiple times. */
2441 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2443 if (!extract_symbol
)
2444 setup_bfd_headers (ibfd
, obfd
);
2446 if (add_sections
!= NULL
)
2448 struct section_add
*padd
;
2449 struct section_list
*pset
;
2451 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2455 pset
= find_section_list (padd
->name
, FALSE
,
2456 SECTION_CONTEXT_SET_FLAGS
);
2458 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2460 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2462 /* bfd_make_section_with_flags() does not return very helpful
2463 error codes, so check for the most likely user error first. */
2464 if (bfd_get_section_by_name (obfd
, padd
->name
))
2466 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2467 _("can't add section '%s'"), padd
->name
);
2472 /* We use LINKER_CREATED here so that the backend hooks
2473 will create any special section type information,
2474 instead of presuming we know what we're doing merely
2475 because we set the flags. */
2476 padd
->section
= bfd_make_section_with_flags
2477 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2478 if (padd
->section
== NULL
)
2480 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2481 _("can't create section `%s'"),
2487 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2489 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2493 pset
= find_section_list (padd
->name
, FALSE
,
2494 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2496 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2498 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2502 pset
= find_section_list (padd
->name
, FALSE
,
2503 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2506 padd
->section
->lma
= pset
->lma_val
;
2508 if (! bfd_set_section_alignment
2509 (obfd
, padd
->section
,
2510 bfd_section_alignment (obfd
, padd
->section
)))
2512 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2519 if (update_sections
!= NULL
)
2521 struct section_add
*pupdate
;
2523 for (pupdate
= update_sections
;
2525 pupdate
= pupdate
->next
)
2527 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2528 if (pupdate
->section
== NULL
)
2530 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2534 osec
= pupdate
->section
->output_section
;
2535 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2537 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2545 /* This palaver is necessary because we must set the output
2546 section size first, before its contents are ready. */
2547 osec
= bfd_get_section_by_name (ibfd
, GNU_BUILD_ATTRS_SECTION_NAME
);
2548 if (osec
&& is_merged_note_section (ibfd
, osec
))
2552 size
= bfd_get_section_size (osec
);
2555 bfd_nonfatal_message (NULL
, ibfd
, osec
, _("warning: note section is empty"));
2556 merge_notes
= FALSE
;
2558 else if (! bfd_get_full_section_contents (ibfd
, osec
, & merged_notes
))
2560 bfd_nonfatal_message (NULL
, ibfd
, osec
, _("warning: could not load note section"));
2561 free (merged_notes
);
2562 merged_notes
= NULL
;
2563 merge_notes
= FALSE
;
2567 merged_size
= merge_gnu_build_notes (ibfd
, osec
, size
, merged_notes
);
2568 if (merged_size
== size
)
2570 /* Merging achieves nothing. */
2571 free (merged_notes
);
2572 merged_notes
= NULL
;
2573 merge_notes
= FALSE
;
2578 if (osec
->output_section
== NULL
2579 || ! bfd_set_section_size (obfd
, osec
->output_section
, merged_size
))
2581 bfd_nonfatal_message (NULL
, obfd
, osec
, _("warning: failed to set merged notes size"));
2582 free (merged_notes
);
2583 merged_notes
= NULL
;
2584 merge_notes
= FALSE
;
2592 if (dump_sections
!= NULL
)
2594 struct section_add
* pdump
;
2596 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2598 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2601 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2602 _("can't dump section '%s' - it does not exist"),
2607 if ((bfd_get_section_flags (ibfd
, osec
) & SEC_HAS_CONTENTS
) == 0)
2609 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2610 _("can't dump section - it has no contents"));
2614 bfd_size_type size
= bfd_get_section_size (osec
);
2617 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2618 _("can't dump section - it is empty"));
2623 f
= fopen (pdump
->filename
, FOPEN_WB
);
2626 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2627 _("could not open section dump file"));
2631 bfd_byte
* contents
= xmalloc (size
);
2632 if (bfd_get_section_contents (ibfd
, osec
, contents
, 0, size
))
2634 if (fwrite (contents
, 1, size
, f
) != size
)
2636 non_fatal (_("error writing section contents to %s (error: %s)"),
2643 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2644 _("could not retrieve section contents"));
2651 if (gnu_debuglink_filename
!= NULL
)
2653 /* PR 15125: Give a helpful warning message if
2654 the debuglink section already exists, and
2655 allow the rest of the copy to complete. */
2656 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2658 non_fatal (_("%s: debuglink section already exists"),
2659 bfd_get_filename (obfd
));
2660 gnu_debuglink_filename
= NULL
;
2664 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2665 (obfd
, gnu_debuglink_filename
);
2667 if (gnu_debuglink_section
== NULL
)
2669 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2670 _("cannot create debug link section `%s'"),
2671 gnu_debuglink_filename
);
2675 /* Special processing for PE format files. We
2676 have no way to distinguish PE from COFF here. */
2677 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2679 bfd_vma debuglink_vma
;
2680 asection
* highest_section
;
2682 /* The PE spec requires that all sections be adjacent and sorted
2683 in ascending order of VMA. It also specifies that debug
2684 sections should be last. This is despite the fact that debug
2685 sections are not loaded into memory and so in theory have no
2688 This means that the debuglink section must be given a non-zero
2689 VMA which makes it contiguous with other debug sections. So
2690 walk the current section list, find the section with the
2691 highest VMA and start the debuglink section after that one. */
2692 for (osec
= obfd
->sections
, highest_section
= NULL
;
2696 && (highest_section
== NULL
2697 || osec
->vma
> highest_section
->vma
))
2698 highest_section
= osec
;
2700 if (highest_section
)
2701 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2702 + highest_section
->size
,
2703 /* FIXME: We ought to be using
2704 COFF_PAGE_SIZE here or maybe
2705 bfd_get_section_alignment() (if it
2706 was set) but since this is for PE
2707 and we know the required alignment
2708 it is easier just to hard code it. */
2711 /* Umm, not sure what to do in this case. */
2712 debuglink_vma
= 0x1000;
2714 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2719 c
= bfd_count_sections (obfd
);
2721 && (gap_fill_set
|| pad_to_set
))
2725 /* We must fill in gaps between the sections and/or we must pad
2726 the last section to a specified address. We do this by
2727 grabbing a list of the sections, sorting them by VMA, and
2728 increasing the section sizes as required to fill the gaps.
2729 We write out the gap contents below. */
2731 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2733 bfd_map_over_sections (obfd
, get_sections
, &set
);
2735 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2737 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2738 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2742 for (i
= 0; i
< c
- 1; i
++)
2746 bfd_vma gap_start
, gap_stop
;
2748 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2749 if ((flags
& SEC_HAS_CONTENTS
) == 0
2750 || (flags
& SEC_LOAD
) == 0)
2753 size
= bfd_section_size (obfd
, osections
[i
]);
2754 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2755 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2756 if (gap_start
< gap_stop
)
2758 if (! bfd_set_section_size (obfd
, osections
[i
],
2759 size
+ (gap_stop
- gap_start
)))
2761 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2762 _("Can't fill gap after section"));
2766 gaps
[i
] = gap_stop
- gap_start
;
2767 if (max_gap
< gap_stop
- gap_start
)
2768 max_gap
= gap_stop
- gap_start
;
2778 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2779 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2780 if (lma
+ size
< pad_to
)
2782 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2785 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2786 _("can't add padding"));
2791 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2792 if (max_gap
< pad_to
- (lma
+ size
))
2793 max_gap
= pad_to
- (lma
+ size
);
2799 /* Symbol filtering must happen after the output sections
2800 have been created, but before their contents are set. */
2802 if (convert_debugging
)
2803 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2805 if (strip_symbols
== STRIP_DEBUG
2806 || strip_symbols
== STRIP_ALL
2807 || strip_symbols
== STRIP_UNNEEDED
2808 || strip_symbols
== STRIP_NONDEBUG
2809 || strip_symbols
== STRIP_DWO
2810 || strip_symbols
== STRIP_NONDWO
2811 || discard_locals
!= LOCALS_UNDEF
2813 || htab_elements (strip_specific_htab
) != 0
2814 || htab_elements (keep_specific_htab
) != 0
2815 || htab_elements (localize_specific_htab
) != 0
2816 || htab_elements (globalize_specific_htab
) != 0
2817 || htab_elements (keepglobal_specific_htab
) != 0
2818 || htab_elements (weaken_specific_htab
) != 0
2819 || htab_elements (redefine_specific_htab
) != 0
2820 || prefix_symbols_string
2823 || convert_debugging
2824 || change_leading_char
2825 || remove_leading_char
2826 || section_rename_list
2830 /* Mark symbols used in output relocations so that they
2831 are kept, even if they are local labels or static symbols.
2833 Note we iterate over the input sections examining their
2834 relocations since the relocations for the output sections
2835 haven't been set yet. mark_symbols_used_in_relocations will
2836 ignore input sections which have no corresponding output
2838 if (strip_symbols
!= STRIP_ALL
)
2839 bfd_map_over_sections (ibfd
,
2840 mark_symbols_used_in_relocations
,
2842 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
2843 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2846 if (convert_debugging
&& dhandle
!= NULL
)
2848 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2855 bfd_set_symtab (obfd
, osympp
, symcount
);
2857 /* This has to happen before section positions are set. */
2858 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2860 /* This has to happen after the symbol table has been set. */
2861 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2863 if (add_sections
!= NULL
)
2865 struct section_add
*padd
;
2867 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2869 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2872 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2878 if (update_sections
!= NULL
)
2880 struct section_add
*pupdate
;
2882 for (pupdate
= update_sections
;
2884 pupdate
= pupdate
->next
)
2886 osec
= pupdate
->section
->output_section
;
2887 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2890 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2898 osec
= bfd_get_section_by_name (obfd
, GNU_BUILD_ATTRS_SECTION_NAME
);
2899 if (osec
&& is_merged_note_section (obfd
, osec
))
2901 if (! bfd_set_section_contents (obfd
, osec
, merged_notes
, 0, merged_size
))
2903 bfd_nonfatal_message (NULL
, obfd
, osec
, _("error: failed to copy merged notes into output"));
2907 else if (! is_strip
)
2908 bfd_nonfatal_message (NULL
, obfd
, osec
, _("could not find any mergeable note sections"));
2909 free (merged_notes
);
2910 merged_notes
= NULL
;
2911 merge_notes
= FALSE
;
2914 if (gnu_debuglink_filename
!= NULL
)
2916 if (! bfd_fill_in_gnu_debuglink_section
2917 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2919 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2920 _("cannot fill debug link section `%s'"),
2921 gnu_debuglink_filename
);
2926 if (gap_fill_set
|| pad_to_set
)
2930 /* Fill in the gaps. */
2933 buf
= (bfd_byte
*) xmalloc (max_gap
);
2934 memset (buf
, gap_fill
, max_gap
);
2936 c
= bfd_count_sections (obfd
);
2937 for (i
= 0; i
< c
; i
++)
2945 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2956 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2959 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2970 /* Allow the BFD backend to copy any private data it understands
2971 from the input BFD to the output BFD. This is done last to
2972 permit the routine to look at the filtered symbol table, which is
2973 important for the ECOFF code at least. */
2974 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2976 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2977 _("error copying private BFD data"));
2981 /* Switch to the alternate machine code. We have to do this at the
2982 very end, because we only initialize the header when we create
2983 the first section. */
2984 if (use_alt_mach_code
!= 0)
2986 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2988 non_fatal (_("this target does not support %lu alternative machine codes"),
2990 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2992 non_fatal (_("treating that number as an absolute e_machine value instead"));
2993 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2996 non_fatal (_("ignoring the alternative value"));
3003 /* Read each archive element in turn from IBFD, copy the
3004 contents to temp file, and keep the temp file handle.
3005 If 'force_output_target' is TRUE then make sure that
3006 all elements in the new archive are of the type
3010 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3011 bfd_boolean force_output_target
,
3012 const bfd_arch_info_type
*input_arch
)
3016 struct name_list
*next
;
3020 bfd
**ptr
= &obfd
->archive_head
;
3023 const char *filename
;
3025 /* Make a temp directory to hold the contents. */
3026 dir
= make_tempdir (bfd_get_filename (obfd
));
3028 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3031 if (strip_symbols
== STRIP_ALL
)
3032 obfd
->has_armap
= FALSE
;
3034 obfd
->has_armap
= ibfd
->has_armap
;
3035 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3038 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3042 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3044 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3047 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3048 goto cleanup_and_exit
;
3051 while (!status
&& this_element
!= NULL
)
3057 int stat_status
= 0;
3058 bfd_boolean del
= TRUE
;
3059 bfd_boolean ok_object
;
3061 /* PR binutils/17533: Do not allow directory traversal
3062 outside of the current directory tree by archive members. */
3063 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3065 non_fatal (_("illegal pathname found in archive member: %s"),
3066 bfd_get_filename (this_element
));
3068 goto cleanup_and_exit
;
3071 /* Create an output file for this member. */
3072 output_name
= concat (dir
, "/",
3073 bfd_get_filename (this_element
), (char *) 0);
3075 /* If the file already exists, make another temp dir. */
3076 if (stat (output_name
, &buf
) >= 0)
3078 output_name
= make_tempdir (output_name
);
3079 if (output_name
== NULL
)
3081 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3084 goto cleanup_and_exit
;
3087 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3088 l
->name
= output_name
;
3092 output_name
= concat (output_name
, "/",
3093 bfd_get_filename (this_element
), (char *) 0);
3098 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3100 if (stat_status
!= 0)
3101 non_fatal (_("internal stat error on %s"),
3102 bfd_get_filename (this_element
));
3105 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3106 l
->name
= output_name
;
3111 ok_object
= bfd_check_format (this_element
, bfd_object
);
3113 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3114 _("Unable to recognise the format of file"));
3116 /* PR binutils/3110: Cope with archives
3117 containing multiple target types. */
3118 if (force_output_target
|| !ok_object
)
3119 output_bfd
= bfd_openw (output_name
, output_target
);
3121 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3123 if (output_bfd
== NULL
)
3125 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3127 goto cleanup_and_exit
;
3132 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3134 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3135 /* Try again as an unknown object file. */
3137 else if (!bfd_close (output_bfd
))
3139 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3140 /* Error in new object file. Don't change archive. */
3147 del
= !copy_unknown_object (this_element
, output_bfd
);
3148 if (!bfd_close_all_done (output_bfd
))
3150 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3151 /* Error in new object file. Don't change archive. */
3158 unlink (output_name
);
3163 if (preserve_dates
&& stat_status
== 0)
3164 set_times (output_name
, &buf
);
3166 /* Open the newly output file and attach to our list. */
3167 output_bfd
= bfd_openr (output_name
, output_target
);
3169 l
->obfd
= output_bfd
;
3172 ptr
= &output_bfd
->archive_next
;
3174 last_element
= this_element
;
3176 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3178 bfd_close (last_element
);
3183 filename
= bfd_get_filename (obfd
);
3184 if (!bfd_close (obfd
))
3187 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3190 filename
= bfd_get_filename (ibfd
);
3191 if (!bfd_close (ibfd
))
3194 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3198 /* Delete all the files that we opened. */
3199 for (l
= list
; l
!= NULL
; l
= l
->next
)
3201 if (l
->obfd
== NULL
)
3205 bfd_close (l
->obfd
);
3214 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3216 /* This is only relevant to Coff targets. */
3217 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3220 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3221 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3222 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3226 /* The top-level control. */
3229 copy_file (const char *input_filename
, const char *output_filename
,
3230 const char *input_target
, const char *output_target
,
3231 const bfd_arch_info_type
*input_arch
)
3234 char **obj_matching
;
3235 char **core_matching
;
3236 off_t size
= get_file_size (input_filename
);
3241 non_fatal (_("error: the input file '%s' is empty"),
3247 /* To allow us to do "strip *" without dying on the first
3248 non-object file, failures are nonfatal. */
3249 ibfd
= bfd_openr (input_filename
, input_target
);
3252 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3257 switch (do_debug_sections
)
3261 case compress_gnu_zlib
:
3262 case compress_gabi_zlib
:
3263 ibfd
->flags
|= BFD_COMPRESS
;
3264 /* Don't check if input is ELF here since this information is
3265 only available after bfd_check_format_matches is called. */
3266 if (do_debug_sections
!= compress_gnu_zlib
)
3267 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3270 ibfd
->flags
|= BFD_DECOMPRESS
;
3276 switch (do_elf_stt_common
)
3278 case elf_stt_common
:
3279 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3282 case no_elf_stt_common
:
3283 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3289 if (bfd_check_format (ibfd
, bfd_archive
))
3291 bfd_boolean force_output_target
;
3294 /* bfd_get_target does not return the correct value until
3295 bfd_check_format succeeds. */
3296 if (output_target
== NULL
)
3298 output_target
= bfd_get_target (ibfd
);
3299 force_output_target
= FALSE
;
3302 force_output_target
= TRUE
;
3304 obfd
= bfd_openw (output_filename
, output_target
);
3307 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3311 /* This is a no-op on non-Coff targets. */
3312 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3314 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3316 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3321 /* bfd_get_target does not return the correct value until
3322 bfd_check_format succeeds. */
3323 if (output_target
== NULL
)
3324 output_target
= bfd_get_target (ibfd
);
3326 obfd
= bfd_openw (output_filename
, output_target
);
3329 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3333 /* This is a no-op on non-Coff targets. */
3334 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3336 if (! copy_object (ibfd
, obfd
, input_arch
))
3339 /* PR 17512: file: 0f15796a.
3340 If the file could not be copied it may not be in a writeable
3341 state. So use bfd_close_all_done to avoid the possibility of
3342 writing uninitialised data into the file. */
3343 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3346 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3350 if (!bfd_close (ibfd
))
3353 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3359 bfd_error_type obj_error
= bfd_get_error ();
3360 bfd_error_type core_error
;
3362 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3364 /* This probably can't happen.. */
3365 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3366 free (obj_matching
);
3370 core_error
= bfd_get_error ();
3371 /* Report the object error in preference to the core error. */
3372 if (obj_error
!= core_error
)
3373 bfd_set_error (obj_error
);
3375 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3377 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3379 list_matching_formats (obj_matching
);
3380 free (obj_matching
);
3382 if (core_error
== bfd_error_file_ambiguously_recognized
)
3384 list_matching_formats (core_matching
);
3385 free (core_matching
);
3392 /* Add a name to the section renaming list. */
3395 add_section_rename (const char * old_name
, const char * new_name
,
3398 section_rename
* srename
;
3400 /* Check for conflicts first. */
3401 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3402 if (strcmp (srename
->old_name
, old_name
) == 0)
3404 /* Silently ignore duplicate definitions. */
3405 if (strcmp (srename
->new_name
, new_name
) == 0
3406 && srename
->flags
== flags
)
3409 fatal (_("Multiple renames of section %s"), old_name
);
3412 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3414 srename
->old_name
= old_name
;
3415 srename
->new_name
= new_name
;
3416 srename
->flags
= flags
;
3417 srename
->next
= section_rename_list
;
3419 section_rename_list
= srename
;
3422 /* Check the section rename list for a new name of the input section
3423 called OLD_NAME. Returns the new name if one is found and sets
3424 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3427 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3429 const section_rename
*srename
;
3431 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3432 if (strcmp (srename
->old_name
, old_name
) == 0)
3434 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3435 *returned_flags
= srename
->flags
;
3437 return srename
->new_name
;
3443 /* Once each of the sections is copied, we may still need to do some
3444 finalization work for private section headers. Do that here. */
3447 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3449 /* Allow the BFD backend to copy any private data it understands
3450 from the input section to the output section. */
3451 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3454 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3455 _("error in private header data"));
3459 /* All went well. */
3463 /* Create a section in OBFD with the same
3464 name and attributes as ISECTION in IBFD. */
3467 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3469 bfd
*obfd
= (bfd
*) obfdarg
;
3470 struct section_list
*p
;
3478 char *prefix
= NULL
;
3479 bfd_boolean make_nobits
;
3481 if (is_strip_section (ibfd
, isection
))
3484 /* Get the, possibly new, name of the output section. */
3485 name
= bfd_section_name (ibfd
, isection
);
3486 flags
= bfd_get_section_flags (ibfd
, isection
);
3487 name
= find_section_rename (name
, &flags
);
3489 /* Prefix sections. */
3490 if ((prefix_alloc_sections_string
)
3491 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3492 prefix
= prefix_alloc_sections_string
;
3493 else if (prefix_sections_string
)
3494 prefix
= prefix_sections_string
;
3500 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3506 make_nobits
= FALSE
;
3508 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3509 SECTION_CONTEXT_SET_FLAGS
);
3511 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3512 else if (strip_symbols
== STRIP_NONDEBUG
3513 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3514 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3516 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3517 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3521 /* Twiddle the input section flags so that it seems to
3522 elf.c:copy_private_bfd_data that section flags have not
3523 changed between input and output sections. This hack
3524 prevents wholesale rewriting of the program headers. */
3525 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3529 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3531 if (osection
== NULL
)
3533 err
= _("failed to create output section");
3538 elf_section_type (osection
) = SHT_NOBITS
;
3540 size
= bfd_section_size (ibfd
, isection
);
3541 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3543 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3544 else if (extract_symbol
)
3546 if (! bfd_set_section_size (obfd
, osection
, size
))
3548 err
= _("failed to set size");
3552 vma
= bfd_section_vma (ibfd
, isection
);
3553 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3554 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3557 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3563 vma
+= change_section_address
;
3565 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3567 err
= _("failed to set vma");
3571 lma
= isection
->lma
;
3572 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3573 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3576 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3582 lma
+= change_section_address
;
3584 osection
->lma
= lma
;
3586 /* FIXME: This is probably not enough. If we change the LMA we
3587 may have to recompute the header for the file as well. */
3588 if (!bfd_set_section_alignment (obfd
,
3590 bfd_section_alignment (ibfd
, isection
)))
3592 err
= _("failed to set alignment");
3596 /* Copy merge entity size. */
3597 osection
->entsize
= isection
->entsize
;
3599 /* Copy compress status. */
3600 osection
->compress_status
= isection
->compress_status
;
3602 /* This used to be mangle_section; we do here to avoid using
3603 bfd_get_section_by_name since some formats allow multiple
3604 sections with the same name. */
3605 isection
->output_section
= osection
;
3606 isection
->output_offset
= 0;
3608 if ((isection
->flags
& SEC_GROUP
) != 0)
3610 asymbol
*gsym
= group_signature (isection
);
3614 gsym
->flags
|= BSF_KEEP
;
3615 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3616 elf_group_id (isection
) = gsym
;
3620 /* Allow the BFD backend to copy any private data it understands
3621 from the input section to the output section. */
3622 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3624 err
= _("failed to copy private data");
3628 /* All went well. */
3633 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3636 /* Return TRUE if input section ISECTION should be skipped. */
3639 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
3645 /* If we have already failed earlier on,
3646 do not keep on generating complaints now. */
3653 if (is_strip_section (ibfd
, isection
))
3656 if (is_update_section (ibfd
, isection
))
3659 /* When merging a note section we skip the copying of the contents,
3660 but not the copying of the relocs associated with the contents. */
3661 if (skip_copy
&& is_merged_note_section (ibfd
, isection
))
3664 flags
= bfd_get_section_flags (ibfd
, isection
);
3665 if ((flags
& SEC_GROUP
) != 0)
3668 osection
= isection
->output_section
;
3669 size
= bfd_get_section_size (isection
);
3671 if (size
== 0 || osection
== 0)
3677 /* Add section SECTION_PATTERN to the list of sections that will have their
3678 relocations removed. */
3681 handle_remove_relocations_option (const char *section_pattern
)
3683 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
3686 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
3687 otherwise return FALSE. If the user has requested that relocations be
3688 removed from a section that does not have relocations then this
3689 function will still return TRUE. */
3692 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
3694 return (find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3695 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
3698 /* Wrapper for dealing with --remove-section (-R) command line arguments.
3699 A special case is detected here, if the user asks to remove a relocation
3700 section (one starting with ".rela." or ".rel.") then this removal must
3701 be done using a different technique. */
3704 handle_remove_section_option (const char *section_pattern
)
3706 if (strncmp (section_pattern
, ".rela.", 6) == 0)
3707 handle_remove_relocations_option (section_pattern
+ 5);
3708 else if (strncmp (section_pattern
, ".rel.", 5) == 0)
3709 handle_remove_relocations_option (section_pattern
+ 4);
3712 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
3713 sections_removed
= TRUE
;
3717 /* Copy relocations in input section ISECTION of IBFD to an output
3718 section with the same name in OBFDARG. If stripping then don't
3719 copy any relocation info. */
3722 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3724 bfd
*obfd
= (bfd
*) obfdarg
;
3730 if (skip_section (ibfd
, isection
, FALSE
))
3733 osection
= isection
->output_section
;
3735 /* Core files and DWO files do not need to be relocated. */
3736 if (bfd_get_format (obfd
) == bfd_core
3737 || strip_symbols
== STRIP_NONDWO
3738 || discard_relocations (ibfd
, isection
))
3742 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3746 /* Do not complain if the target does not support relocations. */
3747 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3752 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3760 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3761 osection
->flags
&= ~SEC_RELOC
;
3765 relpp
= (arelent
**) xmalloc (relsize
);
3766 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3770 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3771 _("relocation count is negative"));
3775 if (strip_symbols
== STRIP_ALL
)
3777 /* Remove relocations which are not in
3778 keep_strip_specific_list. */
3779 arelent
**temp_relpp
;
3780 long temp_relcount
= 0;
3783 temp_relpp
= (arelent
**) xmalloc (relsize
);
3784 for (i
= 0; i
< relcount
; i
++)
3786 /* PR 17512: file: 9e907e0c. */
3787 if (relpp
[i
]->sym_ptr_ptr
3789 && * relpp
[i
]->sym_ptr_ptr
)
3790 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3791 keep_specific_htab
))
3792 temp_relpp
[temp_relcount
++] = relpp
[i
];
3794 relcount
= temp_relcount
;
3799 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3802 osection
->flags
&= ~SEC_RELOC
;
3808 /* Copy the data of input section ISECTION of IBFD
3809 to an output section with the same name in OBFD. */
3812 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3814 bfd
*obfd
= (bfd
*) obfdarg
;
3815 struct section_list
*p
;
3819 if (skip_section (ibfd
, isection
, TRUE
))
3822 osection
= isection
->output_section
;
3823 /* The output SHF_COMPRESSED section size is different from input if
3824 ELF classes of input and output aren't the same. We can't use
3825 the output section size since --interleave will shrink the output
3826 section. Size will be updated if the section is converted. */
3827 size
= bfd_get_section_size (isection
);
3829 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3830 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3832 bfd_byte
*memhunk
= NULL
;
3834 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3835 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3839 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3846 /* We don't handle leftover bytes (too many possible behaviors,
3847 and we don't know what the user wants). The section length
3848 must be a multiple of the number of bytes to swap. */
3849 if ((size
% reverse_bytes
) == 0)
3854 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3855 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3857 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3860 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3861 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3865 /* User must pad the section up in order to do this. */
3866 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3867 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3872 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3873 char *from
= (char *) memhunk
+ copy_byte
;
3874 char *to
= (char *) memhunk
;
3875 char *end
= (char *) memhunk
+ size
;
3878 for (; from
< end
; from
+= interleave
)
3879 for (i
= 0; i
< copy_width
; i
++)
3881 if (&from
[i
] >= end
)
3886 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3887 osection
->lma
/= interleave
;
3890 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3893 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3899 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3900 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3901 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3903 void *memhunk
= xmalloc (size
);
3905 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3906 flag--they can just remove the section entirely and add it
3907 back again. However, we do permit them to turn on the
3908 SEC_HAS_CONTENTS flag, and take it to mean that the section
3909 contents should be zeroed out. */
3911 memset (memhunk
, 0, size
);
3912 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3915 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3923 /* Get all the sections. This is used when --gap-fill or --pad-to is
3927 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3929 asection
***secppp
= (asection
***) secppparg
;
3931 **secppp
= osection
;
3935 /* Sort sections by VMA. This is called via qsort, and is used when
3936 --gap-fill or --pad-to is used. We force non loadable or empty
3937 sections to the front, where they are easier to ignore. */
3940 compare_section_lma (const void *arg1
, const void *arg2
)
3942 const asection
*const *sec1
= (const asection
* const *) arg1
;
3943 const asection
*const *sec2
= (const asection
* const *) arg2
;
3944 flagword flags1
, flags2
;
3946 /* Sort non loadable sections to the front. */
3947 flags1
= (*sec1
)->flags
;
3948 flags2
= (*sec2
)->flags
;
3949 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3950 || (flags1
& SEC_LOAD
) == 0)
3952 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3953 && (flags2
& SEC_LOAD
) != 0)
3958 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3959 || (flags2
& SEC_LOAD
) == 0)
3963 /* Sort sections by LMA. */
3964 if ((*sec1
)->lma
> (*sec2
)->lma
)
3966 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3969 /* Sort sections with the same LMA by size. */
3970 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3972 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3978 /* Mark all the symbols which will be used in output relocations with
3979 the BSF_KEEP flag so that those symbols will not be stripped.
3981 Ignore relocations which will not appear in the output file. */
3984 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3986 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3991 /* Ignore an input section with no corresponding output section. */
3992 if (isection
->output_section
== NULL
)
3995 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3998 /* Do not complain if the target does not support relocations. */
3999 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4001 bfd_fatal (bfd_get_filename (ibfd
));
4007 relpp
= (arelent
**) xmalloc (relsize
);
4008 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4010 bfd_fatal (bfd_get_filename (ibfd
));
4012 /* Examine each symbol used in a relocation. If it's not one of the
4013 special bfd section symbols, then mark it with BSF_KEEP. */
4014 for (i
= 0; i
< relcount
; i
++)
4016 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4017 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4018 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4019 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4020 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4021 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4022 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4029 /* Write out debugging information. */
4032 write_debugging_info (bfd
*obfd
, void *dhandle
,
4033 long *symcountp ATTRIBUTE_UNUSED
,
4034 asymbol
***symppp ATTRIBUTE_UNUSED
)
4036 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
4037 return write_ieee_debugging_info (obfd
, dhandle
);
4039 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4040 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4042 bfd_byte
*syms
, *strings
;
4043 bfd_size_type symsize
, stringsize
;
4044 asection
*stabsec
, *stabstrsec
;
4047 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4052 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4053 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4054 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4056 || stabstrsec
== NULL
4057 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
4058 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
4059 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
4060 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
4062 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4063 _("can't create debugging section"));
4067 /* We can get away with setting the section contents now because
4068 the next thing the caller is going to do is copy over the
4069 real sections. We may someday have to split the contents
4070 setting out of this function. */
4071 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4072 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4075 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4076 _("can't set debugging section contents"));
4083 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4084 _("don't know how to write debugging information for %s"),
4085 bfd_get_target (obfd
));
4089 /* If neither -D nor -U was specified explicitly,
4090 then use the configured default. */
4092 default_deterministic (void)
4094 if (deterministic
< 0)
4095 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4099 strip_main (int argc
, char *argv
[])
4101 char *input_target
= NULL
;
4102 char *output_target
= NULL
;
4103 bfd_boolean show_version
= FALSE
;
4104 bfd_boolean formats_info
= FALSE
;
4107 char *output_file
= NULL
;
4111 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
4112 strip_options
, (int *) 0)) != EOF
)
4117 input_target
= optarg
;
4120 output_target
= optarg
;
4123 input_target
= output_target
= optarg
;
4126 handle_remove_section_option (optarg
);
4128 case OPTION_REMOVE_RELOCS
:
4129 handle_remove_relocations_option (optarg
);
4132 strip_symbols
= STRIP_ALL
;
4136 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4137 strip_symbols
= STRIP_DEBUG
;
4139 case OPTION_STRIP_DWO
:
4140 strip_symbols
= STRIP_DWO
;
4142 case OPTION_STRIP_UNNEEDED
:
4143 strip_symbols
= STRIP_UNNEEDED
;
4146 add_specific_symbol (optarg
, keep_specific_htab
);
4151 case OPTION_NO_MERGE_NOTES
:
4152 merge_notes
= FALSE
;
4155 add_specific_symbol (optarg
, strip_specific_htab
);
4158 output_file
= optarg
;
4161 preserve_dates
= TRUE
;
4164 deterministic
= TRUE
;
4167 deterministic
= FALSE
;
4170 discard_locals
= LOCALS_ALL
;
4173 discard_locals
= LOCALS_START_L
;
4179 show_version
= TRUE
;
4181 case OPTION_FORMATS_INFO
:
4182 formats_info
= TRUE
;
4184 case OPTION_ONLY_KEEP_DEBUG
:
4185 strip_symbols
= STRIP_NONDEBUG
;
4187 case OPTION_KEEP_FILE_SYMBOLS
:
4188 keep_file_symbols
= 1;
4191 /* We've been given a long option. */
4198 strip_usage (stdout
, 0);
4200 strip_usage (stderr
, 1);
4211 print_version ("strip");
4213 default_deterministic ();
4215 /* Default is to strip all symbols. */
4216 if (strip_symbols
== STRIP_UNDEF
4217 && discard_locals
== LOCALS_UNDEF
4218 && htab_elements (strip_specific_htab
) == 0)
4219 strip_symbols
= STRIP_ALL
;
4221 if (output_target
== NULL
)
4222 output_target
= input_target
;
4226 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4227 strip_usage (stderr
, 1);
4229 for (; i
< argc
; i
++)
4231 int hold_status
= status
;
4232 struct stat statbuf
;
4235 if (get_file_size (argv
[i
]) < 1)
4242 /* No need to check the return value of stat().
4243 It has already been checked in get_file_size(). */
4244 stat (argv
[i
], &statbuf
);
4246 if (output_file
== NULL
4247 || filename_cmp (argv
[i
], output_file
) == 0)
4248 tmpname
= make_tempname (argv
[i
]);
4250 tmpname
= output_file
;
4252 if (tmpname
== NULL
)
4254 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4255 _("could not create temporary file to hold stripped copy"));
4261 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4265 set_times (tmpname
, &statbuf
);
4266 if (output_file
!= tmpname
)
4267 status
= (smart_rename (tmpname
,
4268 output_file
? output_file
: argv
[i
],
4269 preserve_dates
) != 0);
4271 status
= hold_status
;
4274 unlink_if_ordinary (tmpname
);
4275 if (output_file
!= tmpname
)
4282 /* Set up PE subsystem. */
4285 set_pe_subsystem (const char *s
)
4287 const char *version
, *subsystem
;
4297 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4298 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4299 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4300 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4301 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4302 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4303 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4304 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4305 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4306 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4312 /* Check for the presence of a version number. */
4313 version
= strchr (s
, ':');
4314 if (version
== NULL
)
4318 int len
= version
- s
;
4322 version
= copy
+ 1 + len
;
4323 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4325 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4327 non_fatal (_("%s: bad version in PE subsystem"), s
);
4330 /* Check for numeric subsystem. */
4331 value
= (short) strtol (subsystem
, ©
, 0);
4334 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4335 if (v
[i
].value
== value
)
4337 pe_subsystem
= value
;
4338 set_def
= v
[i
].set_def
;
4344 /* Search for subsystem by name. */
4345 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4346 if (strcmp (subsystem
, v
[i
].name
) == 0)
4348 pe_subsystem
= v
[i
].value
;
4349 set_def
= v
[i
].set_def
;
4357 fatal (_("unknown PE subsystem: %s"), s
);
4362 if (pe_file_alignment
== (bfd_vma
) -1)
4363 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4364 if (pe_section_alignment
== (bfd_vma
) -1)
4365 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4369 free ((char *) subsystem
);
4372 /* Convert EFI target to PEI target. */
4375 convert_efi_target (char *efi
)
4381 if (strcmp (efi
+ 4, "ia32") == 0)
4383 /* Change ia32 to i386. */
4388 else if (strcmp (efi
+ 4, "x86_64") == 0)
4390 /* Change x86_64 to x86-64. */
4395 /* Allocate and return a pointer to a struct section_add, initializing the
4396 structure using ARG, a string in the format "sectionname=filename".
4397 The returned structure will have its next pointer set to NEXT. The
4398 OPTION field is the name of the command line option currently being
4399 parsed, and is only used if an error needs to be reported. */
4401 static struct section_add
*
4402 init_section_add (const char *arg
,
4403 struct section_add
*next
,
4406 struct section_add
*pa
;
4409 s
= strchr (arg
, '=');
4411 fatal (_("bad format for %s"), option
);
4413 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4414 pa
->name
= xstrndup (arg
, s
- arg
);
4415 pa
->filename
= s
+ 1;
4417 pa
->contents
= NULL
;
4423 /* Load the file specified in PA, allocating memory to hold the file
4424 contents, and store a pointer to the allocated memory in the contents
4425 field of PA. The size field of PA is also updated. All errors call
4429 section_add_load_file (struct section_add
*pa
)
4434 /* We don't use get_file_size so that we can do
4435 --add-section .note.GNU_stack=/dev/null
4436 get_file_size doesn't work on /dev/null. */
4438 f
= fopen (pa
->filename
, FOPEN_RB
);
4440 fatal (_("cannot open: %s: %s"),
4441 pa
->filename
, strerror (errno
));
4445 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
4453 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
4456 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
4458 fatal (_("%s: fread failed"), pa
->filename
);
4469 copy_main (int argc
, char *argv
[])
4471 char *input_filename
= NULL
;
4472 char *output_filename
= NULL
;
4474 char *input_target
= NULL
;
4475 char *output_target
= NULL
;
4476 bfd_boolean show_version
= FALSE
;
4477 bfd_boolean change_warn
= TRUE
;
4478 bfd_boolean formats_info
= FALSE
;
4480 struct stat statbuf
;
4481 const bfd_arch_info_type
*input_arch
= NULL
;
4483 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
4484 copy_options
, (int *) 0)) != EOF
)
4489 copy_byte
= atoi (optarg
);
4491 fatal (_("byte number must be non-negative"));
4495 input_arch
= bfd_scan_arch (optarg
);
4496 if (input_arch
== NULL
)
4497 fatal (_("architecture %s unknown"), optarg
);
4503 interleave
= atoi (optarg
);
4505 fatal (_("interleave must be positive"));
4511 case OPTION_INTERLEAVE_WIDTH
:
4512 copy_width
= atoi (optarg
);
4514 fatal(_("interleave width must be positive"));
4518 case 's': /* "source" - 'I' is preferred */
4519 input_target
= optarg
;
4523 case 'd': /* "destination" - 'O' is preferred */
4524 output_target
= optarg
;
4528 input_target
= output_target
= optarg
;
4532 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
4533 sections_copied
= TRUE
;
4537 handle_remove_section_option (optarg
);
4540 case OPTION_REMOVE_RELOCS
:
4541 handle_remove_relocations_option (optarg
);
4545 strip_symbols
= STRIP_ALL
;
4549 strip_symbols
= STRIP_DEBUG
;
4552 case OPTION_STRIP_DWO
:
4553 strip_symbols
= STRIP_DWO
;
4556 case OPTION_STRIP_UNNEEDED
:
4557 strip_symbols
= STRIP_UNNEEDED
;
4560 case OPTION_ONLY_KEEP_DEBUG
:
4561 strip_symbols
= STRIP_NONDEBUG
;
4564 case OPTION_KEEP_FILE_SYMBOLS
:
4565 keep_file_symbols
= 1;
4568 case OPTION_ADD_GNU_DEBUGLINK
:
4569 long_section_names
= ENABLE
;
4570 gnu_debuglink_filename
= optarg
;
4574 add_specific_symbol (optarg
, keep_specific_htab
);
4580 case OPTION_NO_MERGE_NOTES
:
4581 merge_notes
= FALSE
;
4585 add_specific_symbol (optarg
, strip_specific_htab
);
4588 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4589 add_specific_symbol (optarg
, strip_unneeded_htab
);
4593 add_specific_symbol (optarg
, localize_specific_htab
);
4596 case OPTION_GLOBALIZE_SYMBOL
:
4597 add_specific_symbol (optarg
, globalize_specific_htab
);
4601 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4605 add_specific_symbol (optarg
, weaken_specific_htab
);
4609 preserve_dates
= TRUE
;
4613 deterministic
= TRUE
;
4617 deterministic
= FALSE
;
4625 discard_locals
= LOCALS_ALL
;
4629 discard_locals
= LOCALS_START_L
;
4637 show_version
= TRUE
;
4640 case OPTION_FORMATS_INFO
:
4641 formats_info
= TRUE
;
4648 case OPTION_ADD_SECTION
:
4649 add_sections
= init_section_add (optarg
, add_sections
,
4651 section_add_load_file (add_sections
);
4654 case OPTION_UPDATE_SECTION
:
4655 update_sections
= init_section_add (optarg
, update_sections
,
4656 "--update-section");
4657 section_add_load_file (update_sections
);
4660 case OPTION_DUMP_SECTION
:
4661 dump_sections
= init_section_add (optarg
, dump_sections
,
4665 case OPTION_ADD_SYMBOL
:
4668 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4670 newsym
->next
= NULL
;
4671 s
= strchr (optarg
, '=');
4673 fatal (_("bad format for %s"), "--add-symbol");
4674 t
= strchr (s
+ 1, ':');
4676 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4679 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4680 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4684 newsym
->section
= NULL
;
4685 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4689 t
= strchr (t
+ 1, ',');
4690 newsym
->othersym
= NULL
;
4692 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4694 newsym
->flags
= BSF_GLOBAL
;
4696 /* Keep 'othersym' symbols at the front of the list. */
4697 if (newsym
->othersym
)
4699 newsym
->next
= add_sym_list
;
4701 add_sym_tail
= &newsym
->next
;
4702 add_sym_list
= newsym
;
4706 *add_sym_tail
= newsym
;
4707 add_sym_tail
= &newsym
->next
;
4713 case OPTION_CHANGE_START
:
4714 change_start
= parse_vma (optarg
, "--change-start");
4717 case OPTION_CHANGE_SECTION_ADDRESS
:
4718 case OPTION_CHANGE_SECTION_LMA
:
4719 case OPTION_CHANGE_SECTION_VMA
:
4721 struct section_list
* p
;
4722 unsigned int context
= 0;
4726 char *option
= NULL
;
4731 case OPTION_CHANGE_SECTION_ADDRESS
:
4732 option
= "--change-section-address";
4733 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4735 case OPTION_CHANGE_SECTION_LMA
:
4736 option
= "--change-section-lma";
4737 context
= SECTION_CONTEXT_ALTER_LMA
;
4739 case OPTION_CHANGE_SECTION_VMA
:
4740 option
= "--change-section-vma";
4741 context
= SECTION_CONTEXT_ALTER_VMA
;
4745 s
= strchr (optarg
, '=');
4748 s
= strchr (optarg
, '+');
4751 s
= strchr (optarg
, '-');
4753 fatal (_("bad format for %s"), option
);
4758 /* Correct the context. */
4761 case OPTION_CHANGE_SECTION_ADDRESS
:
4762 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4764 case OPTION_CHANGE_SECTION_LMA
:
4765 context
= SECTION_CONTEXT_SET_LMA
;
4767 case OPTION_CHANGE_SECTION_VMA
:
4768 context
= SECTION_CONTEXT_SET_VMA
;
4774 name
= (char *) xmalloc (len
+ 1);
4775 strncpy (name
, optarg
, len
);
4778 p
= find_section_list (name
, TRUE
, context
);
4780 val
= parse_vma (s
+ 1, option
);
4786 case OPTION_CHANGE_SECTION_ADDRESS
:
4790 case OPTION_CHANGE_SECTION_LMA
:
4794 case OPTION_CHANGE_SECTION_VMA
:
4801 case OPTION_CHANGE_ADDRESSES
:
4802 change_section_address
= parse_vma (optarg
, "--change-addresses");
4803 change_start
= change_section_address
;
4806 case OPTION_CHANGE_WARNINGS
:
4810 case OPTION_CHANGE_LEADING_CHAR
:
4811 change_leading_char
= TRUE
;
4814 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4817 if (strcasecmp (optarg
, "none") == 0)
4818 do_debug_sections
= decompress
;
4819 else if (strcasecmp (optarg
, "zlib") == 0)
4820 do_debug_sections
= compress_zlib
;
4821 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4822 do_debug_sections
= compress_gnu_zlib
;
4823 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4824 do_debug_sections
= compress_gabi_zlib
;
4826 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4830 do_debug_sections
= compress
;
4833 case OPTION_DEBUGGING
:
4834 convert_debugging
= TRUE
;
4837 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4838 do_debug_sections
= decompress
;
4841 case OPTION_ELF_STT_COMMON
:
4842 if (strcasecmp (optarg
, "yes") == 0)
4843 do_elf_stt_common
= elf_stt_common
;
4844 else if (strcasecmp (optarg
, "no") == 0)
4845 do_elf_stt_common
= no_elf_stt_common
;
4847 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4851 case OPTION_GAP_FILL
:
4853 bfd_vma gap_fill_vma
;
4855 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4856 gap_fill
= (bfd_byte
) gap_fill_vma
;
4857 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4861 sprintf_vma (buff
, gap_fill_vma
);
4863 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4866 gap_fill_set
= TRUE
;
4870 case OPTION_NO_CHANGE_WARNINGS
:
4871 change_warn
= FALSE
;
4875 pad_to
= parse_vma (optarg
, "--pad-to");
4879 case OPTION_REMOVE_LEADING_CHAR
:
4880 remove_leading_char
= TRUE
;
4883 case OPTION_REDEFINE_SYM
:
4885 /* Insert this redefinition onto redefine_specific_htab. */
4889 const char *nextarg
;
4890 char *source
, *target
;
4892 s
= strchr (optarg
, '=');
4894 fatal (_("bad format for %s"), "--redefine-sym");
4897 source
= (char *) xmalloc (len
+ 1);
4898 strncpy (source
, optarg
, len
);
4902 len
= strlen (nextarg
);
4903 target
= (char *) xmalloc (len
+ 1);
4904 strcpy (target
, nextarg
);
4906 add_redefine_and_check ("--redefine-sym", source
, target
);
4913 case OPTION_REDEFINE_SYMS
:
4914 add_redefine_syms_file (optarg
);
4917 case OPTION_SET_SECTION_FLAGS
:
4919 struct section_list
*p
;
4924 s
= strchr (optarg
, '=');
4926 fatal (_("bad format for %s"), "--set-section-flags");
4929 name
= (char *) xmalloc (len
+ 1);
4930 strncpy (name
, optarg
, len
);
4933 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4935 p
->flags
= parse_flags (s
+ 1);
4939 case OPTION_RENAME_SECTION
:
4942 const char *eq
, *fl
;
4947 eq
= strchr (optarg
, '=');
4949 fatal (_("bad format for %s"), "--rename-section");
4953 fatal (_("bad format for %s"), "--rename-section");
4955 old_name
= (char *) xmalloc (len
+ 1);
4956 strncpy (old_name
, optarg
, len
);
4960 fl
= strchr (eq
, ',');
4963 flags
= parse_flags (fl
+ 1);
4973 fatal (_("bad format for %s"), "--rename-section");
4975 new_name
= (char *) xmalloc (len
+ 1);
4976 strncpy (new_name
, eq
, len
);
4979 add_section_rename (old_name
, new_name
, flags
);
4983 case OPTION_SET_START
:
4984 set_start
= parse_vma (optarg
, "--set-start");
4985 set_start_set
= TRUE
;
4988 case OPTION_SREC_LEN
:
4989 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
4992 case OPTION_SREC_FORCES3
:
4993 _bfd_srec_forceS3
= TRUE
;
4996 case OPTION_STRIP_SYMBOLS
:
4997 add_specific_symbols (optarg
, strip_specific_htab
);
5000 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5001 add_specific_symbols (optarg
, strip_unneeded_htab
);
5004 case OPTION_KEEP_SYMBOLS
:
5005 add_specific_symbols (optarg
, keep_specific_htab
);
5008 case OPTION_LOCALIZE_HIDDEN
:
5009 localize_hidden
= TRUE
;
5012 case OPTION_LOCALIZE_SYMBOLS
:
5013 add_specific_symbols (optarg
, localize_specific_htab
);
5016 case OPTION_LONG_SECTION_NAMES
:
5017 if (!strcmp ("enable", optarg
))
5018 long_section_names
= ENABLE
;
5019 else if (!strcmp ("disable", optarg
))
5020 long_section_names
= DISABLE
;
5021 else if (!strcmp ("keep", optarg
))
5022 long_section_names
= KEEP
;
5024 fatal (_("unknown long section names option '%s'"), optarg
);
5027 case OPTION_GLOBALIZE_SYMBOLS
:
5028 add_specific_symbols (optarg
, globalize_specific_htab
);
5031 case OPTION_KEEPGLOBAL_SYMBOLS
:
5032 add_specific_symbols (optarg
, keepglobal_specific_htab
);
5035 case OPTION_WEAKEN_SYMBOLS
:
5036 add_specific_symbols (optarg
, weaken_specific_htab
);
5039 case OPTION_ALT_MACH_CODE
:
5040 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5041 if (use_alt_mach_code
== 0)
5042 fatal (_("unable to parse alternative machine code"));
5045 case OPTION_PREFIX_SYMBOLS
:
5046 prefix_symbols_string
= optarg
;
5049 case OPTION_PREFIX_SECTIONS
:
5050 prefix_sections_string
= optarg
;
5053 case OPTION_PREFIX_ALLOC_SECTIONS
:
5054 prefix_alloc_sections_string
= optarg
;
5057 case OPTION_READONLY_TEXT
:
5058 bfd_flags_to_set
|= WP_TEXT
;
5059 bfd_flags_to_clear
&= ~WP_TEXT
;
5062 case OPTION_WRITABLE_TEXT
:
5063 bfd_flags_to_clear
|= WP_TEXT
;
5064 bfd_flags_to_set
&= ~WP_TEXT
;
5068 bfd_flags_to_set
|= D_PAGED
;
5069 bfd_flags_to_clear
&= ~D_PAGED
;
5073 bfd_flags_to_clear
|= D_PAGED
;
5074 bfd_flags_to_set
&= ~D_PAGED
;
5077 case OPTION_EXTRACT_DWO
:
5078 strip_symbols
= STRIP_NONDWO
;
5081 case OPTION_EXTRACT_SYMBOL
:
5082 extract_symbol
= TRUE
;
5085 case OPTION_REVERSE_BYTES
:
5087 int prev
= reverse_bytes
;
5089 reverse_bytes
= atoi (optarg
);
5090 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5091 fatal (_("number of bytes to reverse must be positive and even"));
5093 if (prev
&& prev
!= reverse_bytes
)
5094 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5099 case OPTION_FILE_ALIGNMENT
:
5100 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5106 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5108 || (*end
!= '.' && *end
!= '\0'))
5109 non_fatal (_("%s: invalid reserve value for --heap"),
5111 else if (*end
!= '\0')
5113 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5115 non_fatal (_("%s: invalid commit value for --heap"),
5121 case OPTION_IMAGE_BASE
:
5122 pe_image_base
= parse_vma (optarg
, "--image-base");
5125 case OPTION_SECTION_ALIGNMENT
:
5126 pe_section_alignment
= parse_vma (optarg
,
5127 "--section-alignment");
5130 case OPTION_SUBSYSTEM
:
5131 set_pe_subsystem (optarg
);
5137 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5139 || (*end
!= '.' && *end
!= '\0'))
5140 non_fatal (_("%s: invalid reserve value for --stack"),
5142 else if (*end
!= '\0')
5144 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5146 non_fatal (_("%s: invalid commit value for --stack"),
5153 /* We've been given a long option. */
5158 copy_usage (stdout
, 0);
5161 copy_usage (stderr
, 1);
5172 print_version ("objcopy");
5174 if (interleave
&& copy_byte
== -1)
5175 fatal (_("interleave start byte must be set with --byte"));
5177 if (copy_byte
>= interleave
)
5178 fatal (_("byte number must be less than interleave"));
5180 if (copy_width
> interleave
- copy_byte
)
5181 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5183 if (optind
== argc
|| optind
+ 2 < argc
)
5184 copy_usage (stderr
, 1);
5186 input_filename
= argv
[optind
];
5187 if (optind
+ 1 < argc
)
5188 output_filename
= argv
[optind
+ 1];
5190 default_deterministic ();
5192 /* Default is to strip no symbols. */
5193 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5194 strip_symbols
= STRIP_NONE
;
5196 if (output_target
== NULL
)
5197 output_target
= input_target
;
5199 /* Convert input EFI target to PEI target. */
5200 if (input_target
!= NULL
5201 && strncmp (input_target
, "efi-", 4) == 0)
5205 efi
= xstrdup (output_target
+ 4);
5206 if (strncmp (efi
, "bsdrv-", 6) == 0
5207 || strncmp (efi
, "rtdrv-", 6) == 0)
5209 else if (strncmp (efi
, "app-", 4) != 0)
5210 fatal (_("unknown input EFI target: %s"), input_target
);
5213 convert_efi_target (efi
);
5216 /* Convert output EFI target to PEI target. */
5217 if (output_target
!= NULL
5218 && strncmp (output_target
, "efi-", 4) == 0)
5222 efi
= xstrdup (output_target
+ 4);
5223 if (strncmp (efi
, "app-", 4) == 0)
5225 if (pe_subsystem
== -1)
5226 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5228 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5230 if (pe_subsystem
== -1)
5231 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5234 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5236 if (pe_subsystem
== -1)
5237 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5241 fatal (_("unknown output EFI target: %s"), output_target
);
5243 if (pe_file_alignment
== (bfd_vma
) -1)
5244 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5245 if (pe_section_alignment
== (bfd_vma
) -1)
5246 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5248 output_target
= efi
;
5249 convert_efi_target (efi
);
5253 if (stat (input_filename
, & statbuf
) < 0)
5254 fatal (_("warning: could not locate '%s'. System error message: %s"),
5255 input_filename
, strerror (errno
));
5257 /* If there is no destination file, or the source and destination files
5258 are the same, then create a temp and rename the result into the input. */
5259 if (output_filename
== NULL
5260 || filename_cmp (input_filename
, output_filename
) == 0)
5261 tmpname
= make_tempname (input_filename
);
5263 tmpname
= output_filename
;
5265 if (tmpname
== NULL
)
5266 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5267 input_filename
, strerror (errno
));
5269 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5273 set_times (tmpname
, &statbuf
);
5274 if (tmpname
!= output_filename
)
5275 status
= (smart_rename (tmpname
, input_filename
,
5276 preserve_dates
) != 0);
5279 unlink_if_ordinary (tmpname
);
5283 struct section_list
*p
;
5285 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5289 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5293 sprintf_vma (buff
, p
->vma_val
);
5295 /* xgettext:c-format */
5296 non_fatal (_("%s %s%c0x%s never used"),
5297 "--change-section-vma",
5299 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5303 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5307 sprintf_vma (buff
, p
->lma_val
);
5309 /* xgettext:c-format */
5310 non_fatal (_("%s %s%c0x%s never used"),
5311 "--change-section-lma",
5313 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5324 main (int argc
, char *argv
[])
5326 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5327 setlocale (LC_MESSAGES
, "");
5329 #if defined (HAVE_SETLOCALE)
5330 setlocale (LC_CTYPE
, "");
5332 bindtextdomain (PACKAGE
, LOCALEDIR
);
5333 textdomain (PACKAGE
);
5335 program_name
= argv
[0];
5336 xmalloc_set_program_name (program_name
);
5338 START_PROGRESS (program_name
, 0);
5340 expandargv (&argc
, &argv
);
5342 strip_symbols
= STRIP_UNDEF
;
5343 discard_locals
= LOCALS_UNDEF
;
5346 set_default_bfd_target ();
5350 int i
= strlen (program_name
);
5351 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5352 /* Drop the .exe suffix, if any. */
5353 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
5356 program_name
[i
] = '\0';
5359 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
5362 create_symbol_htabs ();
5365 bfd_set_error_program_name (argv
[0]);
5368 strip_main (argc
, argv
);
5370 copy_main (argc
, argv
);
5372 END_PROGRESS (program_name
);