1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2018 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. */
1149 /* See whether a symbol should be stripped or kept
1150 based on strip_specific_list and keep_symbols. */
1153 is_specified_symbol_predicate (void **slot
, void *data
)
1155 struct is_specified_symbol_predicate_data
*d
=
1156 (struct is_specified_symbol_predicate_data
*) data
;
1157 const char *slot_name
= (char *) *slot
;
1159 if (*slot_name
!= '!')
1161 if (! fnmatch (slot_name
, d
->name
, 0))
1164 /* Continue traversal, there might be a non-match rule. */
1170 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1173 /* Stop traversal. */
1178 /* Continue traversal. */
1183 is_specified_symbol (const char *name
, htab_t htab
)
1187 struct is_specified_symbol_predicate_data data
;
1192 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1197 return htab_find (htab
, name
) != NULL
;
1200 /* Return a pointer to the symbol used as a signature for GROUP. */
1203 group_signature (asection
*group
)
1205 bfd
*abfd
= group
->owner
;
1206 Elf_Internal_Shdr
*ghdr
;
1208 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1212 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1215 ghdr
= &elf_section_data (group
)->this_hdr
;
1216 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1218 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1219 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1221 if (ghdr
->sh_info
> 0
1222 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1223 return isympp
[ghdr
->sh_info
- 1];
1228 /* Return TRUE if the section is a DWO section. */
1231 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1233 const char *name
= bfd_get_section_name (abfd
, sec
);
1234 int len
= strlen (name
);
1236 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1239 /* Return TRUE if section SEC is in the update list. */
1242 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1244 if (update_sections
!= NULL
)
1246 struct section_add
*pupdate
;
1248 for (pupdate
= update_sections
;
1250 pupdate
= pupdate
->next
)
1252 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1261 is_merged_note_section (bfd
* abfd
, asection
* sec
)
1264 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1265 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1266 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1267 We should add support for more note types. */
1268 && ((elf_section_data (sec
)->this_hdr
.sh_flags
& SHF_GNU_BUILD_NOTE
) != 0
1269 /* Old versions of GAS (prior to 2.27) could not set the section
1270 flags to OS-specific values, so we also accept sections with the
1272 || (strcmp (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
) == 0)))
1278 /* See if a non-group section is being removed. */
1281 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1283 if (sections_removed
|| sections_copied
)
1285 struct section_list
*p
;
1286 struct section_list
*q
;
1288 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1289 SECTION_CONTEXT_REMOVE
);
1290 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1291 SECTION_CONTEXT_COPY
);
1294 fatal (_("error: section %s matches both remove and copy options"),
1295 bfd_get_section_name (abfd
, sec
));
1296 if (p
&& is_update_section (abfd
, sec
))
1297 fatal (_("error: section %s matches both update and remove options"),
1298 bfd_get_section_name (abfd
, sec
));
1302 if (sections_copied
&& q
== NULL
)
1306 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1308 if (strip_symbols
== STRIP_DEBUG
1309 || strip_symbols
== STRIP_UNNEEDED
1310 || strip_symbols
== STRIP_ALL
1311 || discard_locals
== LOCALS_ALL
1312 || convert_debugging
)
1314 /* By default we don't want to strip .reloc section.
1315 This section has for pe-coff special meaning. See
1316 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1317 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1321 if (strip_symbols
== STRIP_DWO
)
1322 return is_dwo_section (abfd
, sec
);
1324 if (strip_symbols
== STRIP_NONDEBUG
)
1328 if (strip_symbols
== STRIP_NONDWO
)
1329 return !is_dwo_section (abfd
, sec
);
1334 /* See if a section is being removed. */
1337 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1339 if (is_strip_section_1 (abfd
, sec
))
1342 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1346 asection
*elt
, *first
;
1348 gsym
= group_signature (sec
);
1349 /* Strip groups without a valid signature. */
1354 If we are going to strip the group signature symbol, then
1355 strip the group section too. */
1357 if ((strip_symbols
== STRIP_ALL
1358 && !is_specified_symbol (gname
, keep_specific_htab
))
1359 || is_specified_symbol (gname
, strip_specific_htab
))
1362 /* Remove the group section if all members are removed. */
1363 first
= elt
= elf_next_in_group (sec
);
1366 if (!is_strip_section_1 (abfd
, elt
))
1368 elt
= elf_next_in_group (elt
);
1380 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1382 /* Always keep ELF note sections. */
1383 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1384 return (elf_section_type (isection
) == SHT_NOTE
);
1386 /* Always keep the .buildid section for PE/COFF.
1388 Strictly, this should be written "always keep the section storing the debug
1389 directory", but that may be the .text section for objects produced by some
1390 tools, which it is not sensible to keep. */
1391 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1392 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1397 /* Return true if SYM is a hidden symbol. */
1400 is_hidden_symbol (asymbol
*sym
)
1402 elf_symbol_type
*elf_sym
;
1404 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1405 if (elf_sym
!= NULL
)
1406 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1416 need_sym_before (struct addsym_node
**node
, const char *sym
)
1419 struct addsym_node
*ptr
= add_sym_list
;
1421 /* 'othersym' symbols are at the front of the list. */
1422 for (count
= 0; count
< add_symbols
; count
++)
1426 else if (strcmp (ptr
->othersym
, sym
) == 0)
1428 free (ptr
->othersym
);
1429 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1439 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1441 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1443 bfd_asymbol_name (sym
) = ptr
->symdef
;
1444 sym
->value
= ptr
->symval
;
1445 sym
->flags
= ptr
->flags
;
1448 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1450 fatal (_("Section %s not found"), ptr
->section
);
1454 sym
->section
= bfd_abs_section_ptr
;
1458 /* Choose which symbol entries to copy; put the result in OSYMS.
1459 We don't copy in place, because that confuses the relocs.
1460 Return the number of symbols to print. */
1463 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1464 asymbol
**isyms
, long symcount
)
1466 asymbol
**from
= isyms
, **to
= osyms
;
1467 long src_count
= 0, dst_count
= 0;
1468 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1470 for (; src_count
< symcount
; src_count
++)
1472 asymbol
*sym
= from
[src_count
];
1473 flagword flags
= sym
->flags
;
1474 char *name
= (char *) bfd_asymbol_name (sym
);
1476 bfd_boolean used_in_reloc
= FALSE
;
1477 bfd_boolean undefined
;
1478 bfd_boolean rem_leading_char
;
1479 bfd_boolean add_leading_char
;
1481 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1485 struct addsym_node
*ptr
;
1487 if (need_sym_before (&ptr
, name
))
1488 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1491 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1495 new_name
= (char *) lookup_sym_redefinition (name
);
1496 if (new_name
== name
1497 && (flags
& BSF_SECTION_SYM
) != 0)
1498 new_name
= (char *) find_section_rename (name
, NULL
);
1499 bfd_asymbol_name (sym
) = new_name
;
1503 /* Check if we will remove the current leading character. */
1505 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1506 && (change_leading_char
1507 || (remove_leading_char
1508 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1510 || bfd_is_com_section (bfd_get_section (sym
)))));
1512 /* Check if we will add a new leading character. */
1515 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1516 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1517 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1519 /* Short circuit for change_leading_char if we can do it in-place. */
1520 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1522 name
[0] = bfd_get_symbol_leading_char (obfd
);
1523 bfd_asymbol_name (sym
) = name
;
1524 rem_leading_char
= FALSE
;
1525 add_leading_char
= FALSE
;
1528 /* Remove leading char. */
1529 if (rem_leading_char
)
1530 bfd_asymbol_name (sym
) = ++name
;
1532 /* Add new leading char and/or prefix. */
1533 if (add_leading_char
|| prefix_symbols_string
)
1537 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1538 + strlen (name
) + 1);
1539 if (add_leading_char
)
1540 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1542 if (prefix_symbols_string
)
1544 strcpy (ptr
, prefix_symbols_string
);
1545 ptr
+= strlen (prefix_symbols_string
);
1549 bfd_asymbol_name (sym
) = n
;
1553 if (strip_symbols
== STRIP_ALL
)
1555 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1556 || ((flags
& BSF_SECTION_SYM
) != 0
1557 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1561 used_in_reloc
= TRUE
;
1563 else if (relocatable
/* Relocatable file. */
1564 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1565 || bfd_is_com_section (bfd_get_section (sym
))))
1567 else if (bfd_decode_symclass (sym
) == 'I')
1568 /* Global symbols in $idata sections need to be retained
1569 even if relocatable is FALSE. External users of the
1570 library containing the $idata section may reference these
1573 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1574 || (flags
& BSF_WEAK
) != 0
1576 || bfd_is_com_section (bfd_get_section (sym
)))
1577 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1578 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1579 keep
= (strip_symbols
!= STRIP_DEBUG
1580 && strip_symbols
!= STRIP_UNNEEDED
1581 && ! convert_debugging
);
1582 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1583 /* COMDAT sections store special information in local
1584 symbols, so we cannot risk stripping any of them. */
1586 else /* Local symbol. */
1587 keep
= (strip_symbols
!= STRIP_UNNEEDED
1588 && (discard_locals
!= LOCALS_ALL
1589 && (discard_locals
!= LOCALS_START_L
1590 || ! bfd_is_local_label (abfd
, sym
))));
1592 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1594 /* There are multiple ways to set 'keep' above, but if it
1595 was the relocatable symbol case, then that's an error. */
1598 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1606 && !(flags
& BSF_KEEP
)
1607 && is_specified_symbol (name
, strip_unneeded_htab
))
1611 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1612 || is_specified_symbol (name
, keep_specific_htab
)))
1615 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1620 if ((flags
& BSF_GLOBAL
) != 0
1621 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1623 sym
->flags
&= ~ BSF_GLOBAL
;
1624 sym
->flags
|= BSF_WEAK
;
1628 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1629 && (is_specified_symbol (name
, localize_specific_htab
)
1630 || (htab_elements (keepglobal_specific_htab
) != 0
1631 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1632 || (localize_hidden
&& is_hidden_symbol (sym
))))
1634 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1635 sym
->flags
|= BSF_LOCAL
;
1639 && (flags
& BSF_LOCAL
)
1640 && is_specified_symbol (name
, globalize_specific_htab
))
1642 sym
->flags
&= ~ BSF_LOCAL
;
1643 sym
->flags
|= BSF_GLOBAL
;
1646 to
[dst_count
++] = sym
;
1651 struct addsym_node
*ptr
= add_sym_list
;
1653 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1657 if (strcmp (ptr
->othersym
, ""))
1658 fatal (_("'before=%s' not found"), ptr
->othersym
);
1661 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1667 to
[dst_count
] = NULL
;
1672 /* Find the redefined name of symbol SOURCE. */
1675 lookup_sym_redefinition (const char *source
)
1677 struct redefine_node key_node
= {(char *) source
, NULL
};
1678 struct redefine_node
*redef_node
1679 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1681 return redef_node
== NULL
? source
: redef_node
->target
;
1684 /* Insert a node into symbol redefine hash tabel. */
1687 add_redefine_and_check (const char *cause
, const char *source
,
1690 struct redefine_node
*new_node
1691 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1693 new_node
->source
= strdup (source
);
1694 new_node
->target
= strdup (target
);
1696 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1697 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1700 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1701 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1704 /* Insert the NEW_NODE into hash table for quick search. */
1705 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1707 /* Insert the target string into the reverse hash table, this is needed for
1708 duplicated target string check. */
1709 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1713 /* Handle the --redefine-syms option. Read lines containing "old new"
1714 from the file, and add them to the symbol redefine list. */
1717 add_redefine_syms_file (const char *filename
)
1726 file
= fopen (filename
, "r");
1728 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1729 filename
, strerror (errno
));
1732 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1740 /* Collect the input symbol name. */
1741 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1749 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1757 /* Eat white space between the symbol names. */
1758 while (IS_WHITESPACE (c
))
1760 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1765 /* Collect the output symbol name. */
1767 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1775 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1783 /* Eat white space at end of line. */
1784 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1789 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1790 || c
== '\n' || c
== EOF
)
1793 /* Append the redefinition to the list. */
1795 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1806 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1808 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1809 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1812 /* Eat the rest of the line and finish it. */
1813 while (c
!= '\n' && c
!= EOF
)
1819 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1825 /* Copy unknown object file IBFD onto OBFD.
1826 Returns TRUE upon success, FALSE otherwise. */
1829 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1837 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1839 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1846 non_fatal (_("stat returns negative size for `%s'"),
1847 bfd_get_archive_filename (ibfd
));
1851 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1853 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1858 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1859 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1861 cbuf
= (char *) xmalloc (BUFSIZE
);
1863 while (ncopied
< size
)
1865 tocopy
= size
- ncopied
;
1866 if (tocopy
> BUFSIZE
)
1869 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1870 != (bfd_size_type
) tocopy
)
1872 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1877 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1878 != (bfd_size_type
) tocopy
)
1880 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1888 /* We should at least to be able to read it back when copying an
1889 unknown object in an archive. */
1890 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1895 /* Returns the number of bytes needed to store VAL. */
1897 static inline unsigned int
1898 num_bytes (unsigned long val
)
1900 unsigned int count
= 0;
1902 /* FIXME: There must be a faster way to do this. */
1911 typedef struct objcopy_internal_note
1913 Elf_Internal_Note note
;
1916 bfd_boolean modified
;
1917 } objcopy_internal_note
;
1919 /* Returns TRUE if a gap does, or could, exist between the address range
1920 covered by PNOTE1 and PNOTE2. */
1923 gap_exists (objcopy_internal_note
* pnote1
,
1924 objcopy_internal_note
* pnote2
)
1926 /* Without range end notes, we assume that a gap might exist. */
1927 if (pnote1
->end
== 0 || pnote2
->end
== 0)
1930 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1931 Really we should extract the alignment of the section covered by the notes. */
1932 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1936 is_open_note (objcopy_internal_note
* pnote
)
1938 return (pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
);
1942 is_func_note (objcopy_internal_note
* pnote
)
1944 return (pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
);
1948 is_64bit (bfd
* abfd
)
1950 /* Should never happen, but let's be paranoid. */
1951 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1954 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
1957 /* Merge the notes on SEC, removing redundant entries.
1958 Returns the new, smaller size of the section upon success. */
1960 static bfd_size_type
1961 merge_gnu_build_notes (bfd
* abfd
, asection
* sec
, bfd_size_type size
, bfd_byte
* contents
)
1963 objcopy_internal_note
* pnotes_end
;
1964 objcopy_internal_note
* pnotes
= NULL
;
1965 objcopy_internal_note
* pnote
;
1966 bfd_size_type remain
= size
;
1967 unsigned version_1_seen
= 0;
1968 unsigned version_2_seen
= 0;
1969 unsigned version_3_seen
= 0;
1970 bfd_boolean duplicate_found
= FALSE
;
1971 const char * err
= NULL
;
1972 bfd_byte
* in
= contents
;
1973 int attribute_type_byte
;
1975 unsigned long previous_func_start
= 0;
1976 unsigned long previous_open_start
= 0;
1977 unsigned long previous_func_end
= 0;
1978 unsigned long previous_open_end
= 0;
1982 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
1988 /* If there are relocs associated with this section then we
1989 cannot safely merge it. */
1990 relpp
= (arelent
**) xmalloc (relsize
);
1991 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
1997 /* Make a copy of the notes and convert to our internal format.
1998 Minimum size of a note is 12 bytes. */
1999 pnote
= pnotes
= (objcopy_internal_note
*) xcalloc ((size
/ 12), sizeof (* pnote
));
2000 while (remain
>= 12)
2004 pnote
->note
.namesz
= (bfd_get_32 (abfd
, in
) + 3) & ~3;
2005 pnote
->note
.descsz
= (bfd_get_32 (abfd
, in
+ 4) + 3) & ~3;
2006 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2008 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2009 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2011 err
= _("corrupt GNU build attribute note: wrong note type");
2015 if (pnote
->note
.namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2017 err
= _("corrupt GNU build attribute note: note too big");
2021 if (pnote
->note
.namesz
< 2)
2023 err
= _("corrupt GNU build attribute note: name too small");
2027 pnote
->note
.namedata
= (char *)(in
+ 12);
2028 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->note
.namesz
);
2030 remain
-= 12 + pnote
->note
.namesz
+ pnote
->note
.descsz
;
2031 in
+= 12 + pnote
->note
.namesz
+ pnote
->note
.descsz
;
2033 if (pnote
->note
.namesz
> 2
2034 && pnote
->note
.namedata
[0] == '$'
2035 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2036 && pnote
->note
.namedata
[2] == '1')
2038 else if (pnote
->note
.namesz
> 4
2039 && pnote
->note
.namedata
[0] == 'G'
2040 && pnote
->note
.namedata
[1] == 'A'
2041 && pnote
->note
.namedata
[2] == '$'
2042 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
)
2044 if (pnote
->note
.namedata
[4] == '2')
2046 else if (pnote
->note
.namedata
[4] == '3')
2050 err
= _("corrupt GNU build attribute note: unsupported version");
2055 switch (pnote
->note
.descsz
)
2062 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2063 /* FIXME: For version 1 and 2 notes we should try to
2064 calculate the end address by finding a symbol whose
2065 value is START, and then adding in its size.
2067 For now though, since v1 and v2 was not intended to
2068 handle gaps, we chose an artificially large end
2074 if (! is_64bit (abfd
))
2076 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2077 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2081 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2082 /* FIXME: For version 1 and 2 notes we should try to
2083 calculate the end address by finding a symbol whose
2084 value is START, and then adding in its size.
2086 For now though, since v1 and v2 was not intended to
2087 handle gaps, we chose an artificially large end
2094 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2095 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2099 err
= _("corrupt GNU build attribute note: bad description size");
2103 if (is_open_note (pnote
))
2106 previous_open_start
= start
;
2108 pnote
->start
= previous_open_start
;
2111 previous_open_end
= end
;
2113 pnote
->end
= previous_open_end
;
2118 previous_func_start
= start
;
2120 pnote
->start
= previous_func_start
;
2123 previous_func_end
= end
;
2125 pnote
->end
= previous_func_end
;
2128 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2130 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2139 /* Check that the notes are valid. */
2142 err
= _("corrupt GNU build attribute notes: excess data at end");
2146 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2148 err
= _("bad GNU build attribute notes: no known versions detected");
2152 if ((version_1_seen
> 0 && version_2_seen
> 0)
2153 || (version_1_seen
> 0 && version_3_seen
> 0)
2154 || (version_2_seen
> 0 && version_3_seen
> 0))
2156 err
= _("bad GNU build attribute notes: multiple different versions");
2160 /* Merging is only needed if there is more than one version note... */
2161 if (version_1_seen
== 1 || version_2_seen
== 1 || version_3_seen
== 1)
2164 attribute_type_byte
= version_1_seen
? 1 : 3;
2165 val_start
= attribute_type_byte
+ 1;
2167 /* The first note should be the first version note. */
2168 if (pnotes
[0].note
.namedata
[attribute_type_byte
] != GNU_BUILD_ATTRIBUTE_VERSION
)
2170 err
= _("bad GNU build attribute notes: first note not version note");
2174 /* Now merge the notes. The rules are:
2175 1. Preserve the ordering of the notes.
2176 2. Preserve any NT_GNU_BUILD_ATTRIBUTE_FUNC notes.
2177 3. Eliminate any NT_GNU_BUILD_ATTRIBUTE_OPEN notes that have the same
2178 full name field as the immediately preceeding note with the same type
2179 of name and whose address ranges coincide.
2180 IE - it there are gaps in the coverage of the notes, then these gaps
2182 4. Combine the numeric value of any NT_GNU_BUILD_ATTRIBUTE_OPEN notes
2183 of type GNU_BUILD_ATTRIBUTE_STACK_SIZE.
2184 5. If an NT_GNU_BUILD_ATTRIBUTE_OPEN note is going to be preserved and
2185 its description field is empty then the nearest preceeding OPEN note
2186 with a non-empty description field must also be preserved *OR* the
2187 description field of the note must be changed to contain the starting
2188 address to which it refers. */
2189 for (pnote
= pnotes
+ 1; pnote
< pnotes_end
; pnote
++)
2192 objcopy_internal_note
* back
;
2193 objcopy_internal_note
* prev_open_with_range
= NULL
;
2195 /* Rule 2 - preserve function notes. */
2196 if (! is_open_note (pnote
))
2199 note_type
= pnote
->note
.namedata
[attribute_type_byte
];
2201 /* Scan backwards from pnote, looking for duplicates.
2202 Clear the type field of any found - but do not delete them just yet. */
2203 for (back
= pnote
- 1; back
>= pnotes
; back
--)
2205 int back_type
= back
->note
.namedata
[attribute_type_byte
];
2207 /* If this is the first open note with an address
2208 range that we have encountered then record it. */
2209 if (prev_open_with_range
== NULL
2210 && back
->note
.descsz
> 0
2211 && ! is_func_note (back
))
2212 prev_open_with_range
= back
;
2214 if (! is_open_note (back
))
2217 /* If the two notes are different then keep on searching. */
2218 if (back_type
!= note_type
)
2221 /* Rule 4 - combine stack size notes. */
2222 if (back_type
== GNU_BUILD_ATTRIBUTE_STACK_SIZE
)
2224 unsigned char * name
;
2225 unsigned long note_val
;
2226 unsigned long back_val
;
2231 for (shift
= 0, note_val
= 0,
2232 bytes
= pnote
->note
.namesz
- val_start
,
2233 name
= (unsigned char *) pnote
->note
.namedata
+ val_start
;
2236 byte
= (* name
++) & 0xff;
2237 note_val
|= byte
<< shift
;
2241 for (shift
= 0, back_val
= 0,
2242 bytes
= back
->note
.namesz
- val_start
,
2243 name
= (unsigned char *) back
->note
.namedata
+ val_start
;
2246 byte
= (* name
++) & 0xff;
2247 back_val
|= byte
<< shift
;
2251 back_val
+= note_val
;
2252 if (num_bytes (back_val
) >= back
->note
.namesz
- val_start
)
2254 /* We have a problem - the new value requires more bytes of
2255 storage in the name field than are available. Currently
2256 we have no way of fixing this, so we just preserve both
2261 /* Write the new val into back. */
2262 name
= (unsigned char *) back
->note
.namedata
+ val_start
;
2263 while (name
< (unsigned char *) back
->note
.namedata
2264 + back
->note
.namesz
)
2266 byte
= back_val
& 0xff;
2273 duplicate_found
= TRUE
;
2274 pnote
->note
.type
= 0;
2278 /* Rule 3 - combine identical open notes. */
2279 if (back
->note
.namesz
== pnote
->note
.namesz
2280 && memcmp (back
->note
.namedata
,
2281 pnote
->note
.namedata
, back
->note
.namesz
) == 0
2282 && ! gap_exists (back
, pnote
))
2284 duplicate_found
= TRUE
;
2285 pnote
->note
.type
= 0;
2287 if (pnote
->end
> back
->end
)
2288 back
->end
= pnote
->end
;
2291 back
->modified
= TRUE
;
2295 /* Rule 5 - Since we are keeping this note we must check to see
2296 if its description refers back to an earlier OPEN version
2297 note that has been scheduled for deletion. If so then we
2298 must make sure that version note is also preserved. */
2301 /* As of version 3 we can just
2302 move the range into the note. */
2303 pnote
->modified
= TRUE
;
2304 pnote
->note
.type
= NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2305 back
->modified
= TRUE
;
2306 back
->note
.type
= NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2310 if (pnote
->note
.descsz
== 0
2311 && prev_open_with_range
!= NULL
2312 && prev_open_with_range
->note
.type
== 0)
2313 prev_open_with_range
->note
.type
= NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2316 /* We have found a similar attribute but the details do not match.
2317 Stop searching backwards. */
2322 if (duplicate_found
)
2324 bfd_byte
* new_contents
;
2327 bfd_size_type new_size
;
2328 bfd_vma prev_start
= 0;
2329 bfd_vma prev_end
= 0;
2331 /* Eliminate the duplicates. */
2332 new = new_contents
= xmalloc (size
);
2333 for (pnote
= pnotes
, old
= contents
;
2337 bfd_size_type note_size
= 12 + pnote
->note
.namesz
+ pnote
->note
.descsz
;
2339 if (pnote
->note
.type
!= 0)
2341 if (pnote
->modified
)
2343 /* If the note has been modified then we must copy it by
2344 hand, potentially adding in a new description field. */
2345 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2347 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2348 bfd_put_32 (abfd
, 0, new + 4);
2349 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2351 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2352 new += pnote
->note
.namesz
;
2356 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2357 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2358 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2360 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2361 new += pnote
->note
.namesz
;
2362 if (is_64bit (abfd
))
2364 bfd_put_64 (abfd
, pnote
->start
, new);
2365 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2370 bfd_put_32 (abfd
, pnote
->start
, new);
2371 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2378 memcpy (new, old
, note_size
);
2381 prev_start
= pnote
->start
;
2382 prev_end
= pnote
->end
;
2388 new_size
= new - new_contents
;
2389 memcpy (contents
, new_contents
, new_size
);
2391 free (new_contents
);
2397 bfd_set_error (bfd_error_bad_value
);
2398 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2406 /* Copy object file IBFD onto OBFD.
2407 Returns TRUE upon success, FALSE otherwise. */
2410 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2414 asection
**osections
= NULL
;
2416 asection
*gnu_debuglink_section
= NULL
;
2417 bfd_size_type
*gaps
= NULL
;
2418 bfd_size_type max_gap
= 0;
2421 enum bfd_architecture iarch
;
2425 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2426 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2427 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2429 /* PR 17636: Call non-fatal so that we return to our parent who
2430 may need to tidy temporary files. */
2431 non_fatal (_("Unable to change endianness of input file(s)"));
2435 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2437 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2441 if (ibfd
->sections
== NULL
)
2443 non_fatal (_("error: the input file '%s' has no sections"),
2444 bfd_get_archive_filename (ibfd
));
2448 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
2450 if ((do_debug_sections
& compress
) != 0
2451 && do_debug_sections
!= compress
)
2453 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2454 bfd_get_archive_filename (ibfd
));
2458 if (do_elf_stt_common
)
2460 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2461 bfd_get_archive_filename (ibfd
));
2467 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2468 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2469 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2478 start
= bfd_get_start_address (ibfd
);
2479 start
+= change_start
;
2482 /* Neither the start address nor the flags
2483 need to be set for a core file. */
2484 if (bfd_get_format (obfd
) != bfd_core
)
2488 flags
= bfd_get_file_flags (ibfd
);
2489 flags
|= bfd_flags_to_set
;
2490 flags
&= ~bfd_flags_to_clear
;
2491 flags
&= bfd_applicable_file_flags (obfd
);
2493 if (strip_symbols
== STRIP_ALL
)
2494 flags
&= ~HAS_RELOC
;
2496 if (!bfd_set_start_address (obfd
, start
)
2497 || !bfd_set_file_flags (obfd
, flags
))
2499 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2504 /* Copy architecture of input file to output file. */
2505 iarch
= bfd_get_arch (ibfd
);
2506 imach
= bfd_get_mach (ibfd
);
2509 if (bfd_get_arch_info (ibfd
) == NULL
2510 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
2512 iarch
= input_arch
->arch
;
2513 imach
= input_arch
->mach
;
2516 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2517 bfd_get_archive_filename (ibfd
));
2519 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2520 && (ibfd
->target_defaulted
2521 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2523 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2524 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2525 bfd_get_archive_filename (ibfd
));
2527 non_fatal (_("Output file cannot represent architecture `%s'"),
2528 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2529 bfd_get_mach (ibfd
)));
2533 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2535 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2539 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2540 && bfd_pei_p (obfd
))
2542 /* Set up PE parameters. */
2543 pe_data_type
*pe
= pe_data (obfd
);
2545 /* Copy PE parameters before changing them. */
2546 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
2547 && bfd_pei_p (ibfd
))
2548 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2550 if (pe_file_alignment
!= (bfd_vma
) -1)
2551 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2553 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2555 if (pe_heap_commit
!= (bfd_vma
) -1)
2556 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2558 if (pe_heap_reserve
!= (bfd_vma
) -1)
2559 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2561 if (pe_image_base
!= (bfd_vma
) -1)
2562 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2564 if (pe_section_alignment
!= (bfd_vma
) -1)
2565 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2567 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2569 if (pe_stack_commit
!= (bfd_vma
) -1)
2570 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2572 if (pe_stack_reserve
!= (bfd_vma
) -1)
2573 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2575 if (pe_subsystem
!= -1)
2576 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2578 if (pe_major_subsystem_version
!= -1)
2579 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2581 if (pe_minor_subsystem_version
!= -1)
2582 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2584 if (pe_file_alignment
> pe_section_alignment
)
2586 char file_alignment
[20], section_alignment
[20];
2588 sprintf_vma (file_alignment
, pe_file_alignment
);
2589 sprintf_vma (section_alignment
, pe_section_alignment
);
2590 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2592 file_alignment
, section_alignment
);
2599 if (osympp
!= isympp
)
2605 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2608 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2612 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2613 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2616 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2619 /* PR 17512: file: d6323821
2620 If the symbol table could not be loaded do not pretend that we have
2621 any symbols. This trips us up later on when we load the relocs. */
2625 osympp
= isympp
= NULL
;
2628 /* BFD mandates that all output sections be created and sizes set before
2629 any output is done. Thus, we traverse all sections multiple times. */
2630 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2632 if (!extract_symbol
)
2633 setup_bfd_headers (ibfd
, obfd
);
2635 if (add_sections
!= NULL
)
2637 struct section_add
*padd
;
2638 struct section_list
*pset
;
2640 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2644 pset
= find_section_list (padd
->name
, FALSE
,
2645 SECTION_CONTEXT_SET_FLAGS
);
2647 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2649 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2651 /* bfd_make_section_with_flags() does not return very helpful
2652 error codes, so check for the most likely user error first. */
2653 if (bfd_get_section_by_name (obfd
, padd
->name
))
2655 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2656 _("can't add section '%s'"), padd
->name
);
2661 /* We use LINKER_CREATED here so that the backend hooks
2662 will create any special section type information,
2663 instead of presuming we know what we're doing merely
2664 because we set the flags. */
2665 padd
->section
= bfd_make_section_with_flags
2666 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2667 if (padd
->section
== NULL
)
2669 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2670 _("can't create section `%s'"),
2676 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2678 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2682 pset
= find_section_list (padd
->name
, FALSE
,
2683 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2685 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2687 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2691 pset
= find_section_list (padd
->name
, FALSE
,
2692 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2695 padd
->section
->lma
= pset
->lma_val
;
2697 if (! bfd_set_section_alignment
2698 (obfd
, padd
->section
,
2699 bfd_section_alignment (obfd
, padd
->section
)))
2701 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2708 if (update_sections
!= NULL
)
2710 struct section_add
*pupdate
;
2712 for (pupdate
= update_sections
;
2714 pupdate
= pupdate
->next
)
2716 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2717 if (pupdate
->section
== NULL
)
2719 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2723 osec
= pupdate
->section
->output_section
;
2724 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2726 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2734 /* This palaver is necessary because we must set the output
2735 section size first, before its contents are ready. */
2736 osec
= bfd_get_section_by_name (ibfd
, GNU_BUILD_ATTRS_SECTION_NAME
);
2737 if (osec
&& is_merged_note_section (ibfd
, osec
))
2741 size
= bfd_get_section_size (osec
);
2744 bfd_nonfatal_message (NULL
, ibfd
, osec
, _("warning: note section is empty"));
2745 merge_notes
= FALSE
;
2747 else if (! bfd_get_full_section_contents (ibfd
, osec
, & merged_notes
))
2749 bfd_nonfatal_message (NULL
, ibfd
, osec
, _("warning: could not load note section"));
2750 free (merged_notes
);
2751 merged_notes
= NULL
;
2752 merge_notes
= FALSE
;
2756 merged_size
= merge_gnu_build_notes (ibfd
, osec
, size
, merged_notes
);
2757 if (merged_size
== size
)
2759 /* Merging achieves nothing. */
2760 free (merged_notes
);
2761 merged_notes
= NULL
;
2762 merge_notes
= FALSE
;
2767 if (osec
->output_section
== NULL
2768 || ! bfd_set_section_size (obfd
, osec
->output_section
, merged_size
))
2770 bfd_nonfatal_message (NULL
, obfd
, osec
, _("warning: failed to set merged notes size"));
2771 free (merged_notes
);
2772 merged_notes
= NULL
;
2773 merge_notes
= FALSE
;
2781 if (dump_sections
!= NULL
)
2783 struct section_add
* pdump
;
2785 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2787 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2790 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2791 _("can't dump section '%s' - it does not exist"),
2796 if ((bfd_get_section_flags (ibfd
, osec
) & SEC_HAS_CONTENTS
) == 0)
2798 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2799 _("can't dump section - it has no contents"));
2803 bfd_size_type size
= bfd_get_section_size (osec
);
2806 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2807 _("can't dump section - it is empty"));
2812 f
= fopen (pdump
->filename
, FOPEN_WB
);
2815 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2816 _("could not open section dump file"));
2821 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
2823 if (fwrite (contents
, 1, size
, f
) != size
)
2825 non_fatal (_("error writing section contents to %s (error: %s)"),
2834 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2835 _("could not retrieve section contents"));
2842 if (gnu_debuglink_filename
!= NULL
)
2844 /* PR 15125: Give a helpful warning message if
2845 the debuglink section already exists, and
2846 allow the rest of the copy to complete. */
2847 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2849 non_fatal (_("%s: debuglink section already exists"),
2850 bfd_get_filename (obfd
));
2851 gnu_debuglink_filename
= NULL
;
2855 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2856 (obfd
, gnu_debuglink_filename
);
2858 if (gnu_debuglink_section
== NULL
)
2860 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2861 _("cannot create debug link section `%s'"),
2862 gnu_debuglink_filename
);
2866 /* Special processing for PE format files. We
2867 have no way to distinguish PE from COFF here. */
2868 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2870 bfd_vma debuglink_vma
;
2871 asection
* highest_section
;
2873 /* The PE spec requires that all sections be adjacent and sorted
2874 in ascending order of VMA. It also specifies that debug
2875 sections should be last. This is despite the fact that debug
2876 sections are not loaded into memory and so in theory have no
2879 This means that the debuglink section must be given a non-zero
2880 VMA which makes it contiguous with other debug sections. So
2881 walk the current section list, find the section with the
2882 highest VMA and start the debuglink section after that one. */
2883 for (osec
= obfd
->sections
, highest_section
= NULL
;
2887 && (highest_section
== NULL
2888 || osec
->vma
> highest_section
->vma
))
2889 highest_section
= osec
;
2891 if (highest_section
)
2892 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2893 + highest_section
->size
,
2894 /* FIXME: We ought to be using
2895 COFF_PAGE_SIZE here or maybe
2896 bfd_get_section_alignment() (if it
2897 was set) but since this is for PE
2898 and we know the required alignment
2899 it is easier just to hard code it. */
2902 /* Umm, not sure what to do in this case. */
2903 debuglink_vma
= 0x1000;
2905 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2910 c
= bfd_count_sections (obfd
);
2912 && (gap_fill_set
|| pad_to_set
))
2916 /* We must fill in gaps between the sections and/or we must pad
2917 the last section to a specified address. We do this by
2918 grabbing a list of the sections, sorting them by VMA, and
2919 increasing the section sizes as required to fill the gaps.
2920 We write out the gap contents below. */
2922 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2924 bfd_map_over_sections (obfd
, get_sections
, &set
);
2926 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2928 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2929 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2933 for (i
= 0; i
< c
- 1; i
++)
2937 bfd_vma gap_start
, gap_stop
;
2939 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2940 if ((flags
& SEC_HAS_CONTENTS
) == 0
2941 || (flags
& SEC_LOAD
) == 0)
2944 size
= bfd_section_size (obfd
, osections
[i
]);
2945 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2946 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2947 if (gap_start
< gap_stop
)
2949 if (! bfd_set_section_size (obfd
, osections
[i
],
2950 size
+ (gap_stop
- gap_start
)))
2952 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2953 _("Can't fill gap after section"));
2957 gaps
[i
] = gap_stop
- gap_start
;
2958 if (max_gap
< gap_stop
- gap_start
)
2959 max_gap
= gap_stop
- gap_start
;
2969 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2970 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2971 if (lma
+ size
< pad_to
)
2973 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2976 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2977 _("can't add padding"));
2982 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2983 if (max_gap
< pad_to
- (lma
+ size
))
2984 max_gap
= pad_to
- (lma
+ size
);
2990 /* Symbol filtering must happen after the output sections
2991 have been created, but before their contents are set. */
2993 if (convert_debugging
)
2994 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2996 if (strip_symbols
== STRIP_DEBUG
2997 || strip_symbols
== STRIP_ALL
2998 || strip_symbols
== STRIP_UNNEEDED
2999 || strip_symbols
== STRIP_NONDEBUG
3000 || strip_symbols
== STRIP_DWO
3001 || strip_symbols
== STRIP_NONDWO
3002 || discard_locals
!= LOCALS_UNDEF
3004 || htab_elements (strip_specific_htab
) != 0
3005 || htab_elements (keep_specific_htab
) != 0
3006 || htab_elements (localize_specific_htab
) != 0
3007 || htab_elements (globalize_specific_htab
) != 0
3008 || htab_elements (keepglobal_specific_htab
) != 0
3009 || htab_elements (weaken_specific_htab
) != 0
3010 || htab_elements (redefine_specific_htab
) != 0
3011 || prefix_symbols_string
3014 || convert_debugging
3015 || change_leading_char
3016 || remove_leading_char
3017 || section_rename_list
3021 /* Mark symbols used in output relocations so that they
3022 are kept, even if they are local labels or static symbols.
3024 Note we iterate over the input sections examining their
3025 relocations since the relocations for the output sections
3026 haven't been set yet. mark_symbols_used_in_relocations will
3027 ignore input sections which have no corresponding output
3029 if (strip_symbols
!= STRIP_ALL
)
3031 bfd_set_error (bfd_error_no_error
);
3032 bfd_map_over_sections (ibfd
,
3033 mark_symbols_used_in_relocations
,
3035 if (bfd_get_error () != bfd_error_no_error
)
3042 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3043 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3046 if (convert_debugging
&& dhandle
!= NULL
)
3048 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
3055 bfd_set_symtab (obfd
, osympp
, symcount
);
3057 /* This has to happen before section positions are set. */
3058 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3060 /* This has to happen after the symbol table has been set. */
3061 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3063 if (add_sections
!= NULL
)
3065 struct section_add
*padd
;
3067 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3069 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3072 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3078 if (update_sections
!= NULL
)
3080 struct section_add
*pupdate
;
3082 for (pupdate
= update_sections
;
3084 pupdate
= pupdate
->next
)
3086 osec
= pupdate
->section
->output_section
;
3087 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3090 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3098 osec
= bfd_get_section_by_name (obfd
, GNU_BUILD_ATTRS_SECTION_NAME
);
3099 if (osec
&& is_merged_note_section (obfd
, osec
))
3101 if (! bfd_set_section_contents (obfd
, osec
, merged_notes
, 0, merged_size
))
3103 bfd_nonfatal_message (NULL
, obfd
, osec
, _("error: failed to copy merged notes into output"));
3107 else if (! is_strip
)
3108 bfd_nonfatal_message (NULL
, obfd
, osec
, _("could not find any mergeable note sections"));
3109 free (merged_notes
);
3110 merged_notes
= NULL
;
3111 merge_notes
= FALSE
;
3114 if (gnu_debuglink_filename
!= NULL
)
3116 if (! bfd_fill_in_gnu_debuglink_section
3117 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3119 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3120 _("cannot fill debug link section `%s'"),
3121 gnu_debuglink_filename
);
3126 if (gap_fill_set
|| pad_to_set
)
3130 /* Fill in the gaps. */
3133 buf
= (bfd_byte
*) xmalloc (max_gap
);
3134 memset (buf
, gap_fill
, max_gap
);
3136 c
= bfd_count_sections (obfd
);
3137 for (i
= 0; i
< c
; i
++)
3145 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
3156 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3159 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3175 /* Allow the BFD backend to copy any private data it understands
3176 from the input BFD to the output BFD. This is done last to
3177 permit the routine to look at the filtered symbol table, which is
3178 important for the ECOFF code at least. */
3179 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3181 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3182 _("error copying private BFD data"));
3186 /* Switch to the alternate machine code. We have to do this at the
3187 very end, because we only initialize the header when we create
3188 the first section. */
3189 if (use_alt_mach_code
!= 0)
3191 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3193 non_fatal (_("this target does not support %lu alternative machine codes"),
3195 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3197 non_fatal (_("treating that number as an absolute e_machine value instead"));
3198 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3201 non_fatal (_("ignoring the alternative value"));
3208 /* Read each archive element in turn from IBFD, copy the
3209 contents to temp file, and keep the temp file handle.
3210 If 'force_output_target' is TRUE then make sure that
3211 all elements in the new archive are of the type
3215 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3216 bfd_boolean force_output_target
,
3217 const bfd_arch_info_type
*input_arch
)
3221 struct name_list
*next
;
3225 bfd
**ptr
= &obfd
->archive_head
;
3228 const char *filename
;
3230 /* Make a temp directory to hold the contents. */
3231 dir
= make_tempdir (bfd_get_filename (obfd
));
3233 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3236 if (strip_symbols
== STRIP_ALL
)
3237 obfd
->has_armap
= FALSE
;
3239 obfd
->has_armap
= ibfd
->has_armap
;
3240 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3243 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3247 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3249 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3252 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3253 goto cleanup_and_exit
;
3256 while (!status
&& this_element
!= NULL
)
3262 int stat_status
= 0;
3263 bfd_boolean del
= TRUE
;
3264 bfd_boolean ok_object
;
3266 /* PR binutils/17533: Do not allow directory traversal
3267 outside of the current directory tree by archive members. */
3268 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3270 non_fatal (_("illegal pathname found in archive member: %s"),
3271 bfd_get_filename (this_element
));
3273 goto cleanup_and_exit
;
3276 /* Create an output file for this member. */
3277 output_name
= concat (dir
, "/",
3278 bfd_get_filename (this_element
), (char *) 0);
3280 /* If the file already exists, make another temp dir. */
3281 if (stat (output_name
, &buf
) >= 0)
3283 char * tmpdir
= make_tempdir (output_name
);
3288 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3291 goto cleanup_and_exit
;
3294 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3299 output_name
= concat (tmpdir
, "/",
3300 bfd_get_filename (this_element
), (char *) 0);
3305 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3307 if (stat_status
!= 0)
3308 non_fatal (_("internal stat error on %s"),
3309 bfd_get_filename (this_element
));
3312 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3313 l
->name
= output_name
;
3318 ok_object
= bfd_check_format (this_element
, bfd_object
);
3320 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3321 _("Unable to recognise the format of file"));
3323 /* PR binutils/3110: Cope with archives
3324 containing multiple target types. */
3325 if (force_output_target
|| !ok_object
)
3326 output_bfd
= bfd_openw (output_name
, output_target
);
3328 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3330 if (output_bfd
== NULL
)
3332 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3334 goto cleanup_and_exit
;
3339 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3341 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3342 /* Try again as an unknown object file. */
3344 else if (!bfd_close (output_bfd
))
3346 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3347 /* Error in new object file. Don't change archive. */
3354 del
= !copy_unknown_object (this_element
, output_bfd
);
3355 if (!bfd_close_all_done (output_bfd
))
3357 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3358 /* Error in new object file. Don't change archive. */
3365 unlink (output_name
);
3370 if (preserve_dates
&& stat_status
== 0)
3371 set_times (output_name
, &buf
);
3373 /* Open the newly output file and attach to our list. */
3374 output_bfd
= bfd_openr (output_name
, output_target
);
3376 l
->obfd
= output_bfd
;
3379 ptr
= &output_bfd
->archive_next
;
3381 last_element
= this_element
;
3383 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3385 bfd_close (last_element
);
3390 filename
= bfd_get_filename (obfd
);
3391 if (!bfd_close (obfd
))
3394 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3397 filename
= bfd_get_filename (ibfd
);
3398 if (!bfd_close (ibfd
))
3401 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3405 /* Delete all the files that we opened. */
3407 struct name_list
* next
;
3409 for (l
= list
; l
!= NULL
; l
= next
)
3411 if (l
->obfd
== NULL
)
3415 bfd_close (l
->obfd
);
3427 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3429 /* This is only relevant to Coff targets. */
3430 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3433 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3434 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3435 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3439 /* The top-level control. */
3442 copy_file (const char *input_filename
, const char *output_filename
,
3443 const char *input_target
, const char *output_target
,
3444 const bfd_arch_info_type
*input_arch
)
3447 char **obj_matching
;
3448 char **core_matching
;
3449 off_t size
= get_file_size (input_filename
);
3454 non_fatal (_("error: the input file '%s' is empty"),
3460 /* To allow us to do "strip *" without dying on the first
3461 non-object file, failures are nonfatal. */
3462 ibfd
= bfd_openr (input_filename
, input_target
);
3465 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3470 switch (do_debug_sections
)
3474 case compress_gnu_zlib
:
3475 case compress_gabi_zlib
:
3476 ibfd
->flags
|= BFD_COMPRESS
;
3477 /* Don't check if input is ELF here since this information is
3478 only available after bfd_check_format_matches is called. */
3479 if (do_debug_sections
!= compress_gnu_zlib
)
3480 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3483 ibfd
->flags
|= BFD_DECOMPRESS
;
3489 switch (do_elf_stt_common
)
3491 case elf_stt_common
:
3492 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3495 case no_elf_stt_common
:
3496 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3502 if (bfd_check_format (ibfd
, bfd_archive
))
3504 bfd_boolean force_output_target
;
3507 /* bfd_get_target does not return the correct value until
3508 bfd_check_format succeeds. */
3509 if (output_target
== NULL
)
3511 output_target
= bfd_get_target (ibfd
);
3512 force_output_target
= FALSE
;
3515 force_output_target
= TRUE
;
3517 obfd
= bfd_openw (output_filename
, output_target
);
3520 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3524 /* This is a no-op on non-Coff targets. */
3525 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3527 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3529 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3534 /* bfd_get_target does not return the correct value until
3535 bfd_check_format succeeds. */
3536 if (output_target
== NULL
)
3537 output_target
= bfd_get_target (ibfd
);
3539 obfd
= bfd_openw (output_filename
, output_target
);
3542 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3546 /* This is a no-op on non-Coff targets. */
3547 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3549 if (! copy_object (ibfd
, obfd
, input_arch
))
3552 /* PR 17512: file: 0f15796a.
3553 If the file could not be copied it may not be in a writeable
3554 state. So use bfd_close_all_done to avoid the possibility of
3555 writing uninitialised data into the file. */
3556 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3559 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3563 if (!bfd_close (ibfd
))
3566 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3572 bfd_error_type obj_error
= bfd_get_error ();
3573 bfd_error_type core_error
;
3575 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3577 /* This probably can't happen.. */
3578 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3579 free (obj_matching
);
3583 core_error
= bfd_get_error ();
3584 /* Report the object error in preference to the core error. */
3585 if (obj_error
!= core_error
)
3586 bfd_set_error (obj_error
);
3588 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3590 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3592 list_matching_formats (obj_matching
);
3593 free (obj_matching
);
3595 if (core_error
== bfd_error_file_ambiguously_recognized
)
3597 list_matching_formats (core_matching
);
3598 free (core_matching
);
3605 /* Add a name to the section renaming list. */
3608 add_section_rename (const char * old_name
, const char * new_name
,
3611 section_rename
* srename
;
3613 /* Check for conflicts first. */
3614 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3615 if (strcmp (srename
->old_name
, old_name
) == 0)
3617 /* Silently ignore duplicate definitions. */
3618 if (strcmp (srename
->new_name
, new_name
) == 0
3619 && srename
->flags
== flags
)
3622 fatal (_("Multiple renames of section %s"), old_name
);
3625 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3627 srename
->old_name
= old_name
;
3628 srename
->new_name
= new_name
;
3629 srename
->flags
= flags
;
3630 srename
->next
= section_rename_list
;
3632 section_rename_list
= srename
;
3635 /* Check the section rename list for a new name of the input section
3636 called OLD_NAME. Returns the new name if one is found and sets
3637 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3640 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3642 const section_rename
*srename
;
3644 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3645 if (strcmp (srename
->old_name
, old_name
) == 0)
3647 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3648 *returned_flags
= srename
->flags
;
3650 return srename
->new_name
;
3656 /* Once each of the sections is copied, we may still need to do some
3657 finalization work for private section headers. Do that here. */
3660 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3662 /* Allow the BFD backend to copy any private data it understands
3663 from the input section to the output section. */
3664 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3667 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3668 _("error in private header data"));
3672 /* All went well. */
3676 /* Create a section in OBFD with the same
3677 name and attributes as ISECTION in IBFD. */
3680 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3682 bfd
*obfd
= (bfd
*) obfdarg
;
3683 struct section_list
*p
;
3691 char *prefix
= NULL
;
3692 bfd_boolean make_nobits
;
3694 if (is_strip_section (ibfd
, isection
))
3697 /* Get the, possibly new, name of the output section. */
3698 name
= bfd_section_name (ibfd
, isection
);
3699 flags
= bfd_get_section_flags (ibfd
, isection
);
3700 name
= find_section_rename (name
, &flags
);
3702 /* Prefix sections. */
3703 if ((prefix_alloc_sections_string
)
3704 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3705 prefix
= prefix_alloc_sections_string
;
3706 else if (prefix_sections_string
)
3707 prefix
= prefix_sections_string
;
3713 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3719 make_nobits
= FALSE
;
3721 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3722 SECTION_CONTEXT_SET_FLAGS
);
3724 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3725 else if (strip_symbols
== STRIP_NONDEBUG
3726 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3727 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3729 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3730 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3734 /* Twiddle the input section flags so that it seems to
3735 elf.c:copy_private_bfd_data that section flags have not
3736 changed between input and output sections. This hack
3737 prevents wholesale rewriting of the program headers. */
3738 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3742 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3744 if (osection
== NULL
)
3746 err
= _("failed to create output section");
3751 elf_section_type (osection
) = SHT_NOBITS
;
3753 size
= bfd_section_size (ibfd
, isection
);
3754 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3756 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3757 else if (extract_symbol
)
3759 if (! bfd_set_section_size (obfd
, osection
, size
))
3761 err
= _("failed to set size");
3765 vma
= bfd_section_vma (ibfd
, isection
);
3766 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3767 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3770 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3776 vma
+= change_section_address
;
3778 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3780 err
= _("failed to set vma");
3784 lma
= isection
->lma
;
3785 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3786 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3789 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3795 lma
+= change_section_address
;
3797 osection
->lma
= lma
;
3799 /* FIXME: This is probably not enough. If we change the LMA we
3800 may have to recompute the header for the file as well. */
3801 if (!bfd_set_section_alignment (obfd
,
3803 bfd_section_alignment (ibfd
, isection
)))
3805 err
= _("failed to set alignment");
3809 /* Copy merge entity size. */
3810 osection
->entsize
= isection
->entsize
;
3812 /* Copy compress status. */
3813 osection
->compress_status
= isection
->compress_status
;
3815 /* This used to be mangle_section; we do here to avoid using
3816 bfd_get_section_by_name since some formats allow multiple
3817 sections with the same name. */
3818 isection
->output_section
= osection
;
3819 isection
->output_offset
= 0;
3821 if ((isection
->flags
& SEC_GROUP
) != 0)
3823 asymbol
*gsym
= group_signature (isection
);
3827 gsym
->flags
|= BSF_KEEP
;
3828 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3829 elf_group_id (isection
) = gsym
;
3833 /* Allow the BFD backend to copy any private data it understands
3834 from the input section to the output section. */
3835 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3837 err
= _("failed to copy private data");
3841 /* All went well. */
3846 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3849 /* Return TRUE if input section ISECTION should be skipped. */
3852 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
3858 /* If we have already failed earlier on,
3859 do not keep on generating complaints now. */
3866 if (is_strip_section (ibfd
, isection
))
3869 if (is_update_section (ibfd
, isection
))
3872 /* When merging a note section we skip the copying of the contents,
3873 but not the copying of the relocs associated with the contents. */
3874 if (skip_copy
&& is_merged_note_section (ibfd
, isection
))
3877 flags
= bfd_get_section_flags (ibfd
, isection
);
3878 if ((flags
& SEC_GROUP
) != 0)
3881 osection
= isection
->output_section
;
3882 size
= bfd_get_section_size (isection
);
3884 if (size
== 0 || osection
== 0)
3890 /* Add section SECTION_PATTERN to the list of sections that will have their
3891 relocations removed. */
3894 handle_remove_relocations_option (const char *section_pattern
)
3896 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
3899 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
3900 otherwise return FALSE. If the user has requested that relocations be
3901 removed from a section that does not have relocations then this
3902 function will still return TRUE. */
3905 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
3907 return (find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3908 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
3911 /* Wrapper for dealing with --remove-section (-R) command line arguments.
3912 A special case is detected here, if the user asks to remove a relocation
3913 section (one starting with ".rela." or ".rel.") then this removal must
3914 be done using a different technique. */
3917 handle_remove_section_option (const char *section_pattern
)
3919 if (strncmp (section_pattern
, ".rela.", 6) == 0)
3920 handle_remove_relocations_option (section_pattern
+ 5);
3921 else if (strncmp (section_pattern
, ".rel.", 5) == 0)
3922 handle_remove_relocations_option (section_pattern
+ 4);
3925 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
3926 sections_removed
= TRUE
;
3930 /* Copy relocations in input section ISECTION of IBFD to an output
3931 section with the same name in OBFDARG. If stripping then don't
3932 copy any relocation info. */
3935 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3937 bfd
*obfd
= (bfd
*) obfdarg
;
3943 if (skip_section (ibfd
, isection
, FALSE
))
3946 osection
= isection
->output_section
;
3948 /* Core files and DWO files do not need to be relocated. */
3949 if (bfd_get_format (obfd
) == bfd_core
3950 || strip_symbols
== STRIP_NONDWO
3951 || discard_relocations (ibfd
, isection
))
3955 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3959 /* Do not complain if the target does not support relocations. */
3960 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3965 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3973 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3974 osection
->flags
&= ~SEC_RELOC
;
3978 if (isection
->orelocation
!= NULL
)
3980 /* Some other function has already set up the output relocs
3981 for us, so scan those instead of the default relocs. */
3982 relcount
= isection
->reloc_count
;
3983 relpp
= isection
->orelocation
;
3987 relpp
= (arelent
**) xmalloc (relsize
);
3988 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3992 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3993 _("relocation count is negative"));
3998 if (strip_symbols
== STRIP_ALL
)
4000 /* Remove relocations which are not in
4001 keep_strip_specific_list. */
4002 arelent
**temp_relpp
;
4003 long temp_relcount
= 0;
4006 temp_relpp
= (arelent
**) xmalloc (relsize
);
4007 for (i
= 0; i
< relcount
; i
++)
4009 /* PR 17512: file: 9e907e0c. */
4010 if (relpp
[i
]->sym_ptr_ptr
4012 && * relpp
[i
]->sym_ptr_ptr
)
4013 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4014 keep_specific_htab
))
4015 temp_relpp
[temp_relcount
++] = relpp
[i
];
4017 relcount
= temp_relcount
;
4018 if (isection
->orelocation
== NULL
)
4023 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4026 osection
->flags
&= ~SEC_RELOC
;
4032 /* Copy the data of input section ISECTION of IBFD
4033 to an output section with the same name in OBFD. */
4036 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4038 bfd
*obfd
= (bfd
*) obfdarg
;
4039 struct section_list
*p
;
4043 if (skip_section (ibfd
, isection
, TRUE
))
4046 osection
= isection
->output_section
;
4047 /* The output SHF_COMPRESSED section size is different from input if
4048 ELF classes of input and output aren't the same. We can't use
4049 the output section size since --interleave will shrink the output
4050 section. Size will be updated if the section is converted. */
4051 size
= bfd_get_section_size (isection
);
4053 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
4054 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
4056 bfd_byte
*memhunk
= NULL
;
4058 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4059 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4063 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4070 /* We don't handle leftover bytes (too many possible behaviors,
4071 and we don't know what the user wants). The section length
4072 must be a multiple of the number of bytes to swap. */
4073 if ((size
% reverse_bytes
) == 0)
4078 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4079 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4081 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4084 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4085 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4089 /* User must pad the section up in order to do this. */
4090 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4091 bfd_section_name (ibfd
, isection
), reverse_bytes
);
4096 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4097 char *from
= (char *) memhunk
+ copy_byte
;
4098 char *to
= (char *) memhunk
;
4099 char *end
= (char *) memhunk
+ size
;
4102 /* If the section address is not exactly divisible by the interleave,
4103 then we must bias the from address. If the copy_byte is less than
4104 the bias, then we must skip forward one interleave, and increment
4106 int extra
= isection
->lma
% interleave
;
4108 if (copy_byte
< extra
)
4111 for (; from
< end
; from
+= interleave
)
4112 for (i
= 0; i
< copy_width
; i
++)
4114 if (&from
[i
] >= end
)
4119 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4120 osection
->lma
/= interleave
;
4121 if (copy_byte
< extra
)
4125 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4128 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4134 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
4135 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4136 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4138 void *memhunk
= xmalloc (size
);
4140 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4141 flag--they can just remove the section entirely and add it
4142 back again. However, we do permit them to turn on the
4143 SEC_HAS_CONTENTS flag, and take it to mean that the section
4144 contents should be zeroed out. */
4146 memset (memhunk
, 0, size
);
4147 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4150 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4158 /* Get all the sections. This is used when --gap-fill or --pad-to is
4162 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4164 asection
***secppp
= (asection
***) secppparg
;
4166 **secppp
= osection
;
4170 /* Sort sections by VMA. This is called via qsort, and is used when
4171 --gap-fill or --pad-to is used. We force non loadable or empty
4172 sections to the front, where they are easier to ignore. */
4175 compare_section_lma (const void *arg1
, const void *arg2
)
4177 const asection
*const *sec1
= (const asection
* const *) arg1
;
4178 const asection
*const *sec2
= (const asection
* const *) arg2
;
4179 flagword flags1
, flags2
;
4181 /* Sort non loadable sections to the front. */
4182 flags1
= (*sec1
)->flags
;
4183 flags2
= (*sec2
)->flags
;
4184 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4185 || (flags1
& SEC_LOAD
) == 0)
4187 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4188 && (flags2
& SEC_LOAD
) != 0)
4193 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4194 || (flags2
& SEC_LOAD
) == 0)
4198 /* Sort sections by LMA. */
4199 if ((*sec1
)->lma
> (*sec2
)->lma
)
4201 else if ((*sec1
)->lma
< (*sec2
)->lma
)
4204 /* Sort sections with the same LMA by size. */
4205 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
4207 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
4213 /* Mark all the symbols which will be used in output relocations with
4214 the BSF_KEEP flag so that those symbols will not be stripped.
4216 Ignore relocations which will not appear in the output file. */
4219 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4221 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4226 /* Ignore an input section with no corresponding output section. */
4227 if (isection
->output_section
== NULL
)
4230 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4233 /* Do not complain if the target does not support relocations. */
4234 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4236 bfd_fatal (bfd_get_filename (ibfd
));
4242 relpp
= (arelent
**) xmalloc (relsize
);
4243 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4245 bfd_fatal (bfd_get_filename (ibfd
));
4247 /* Examine each symbol used in a relocation. If it's not one of the
4248 special bfd section symbols, then mark it with BSF_KEEP. */
4249 for (i
= 0; i
< relcount
; i
++)
4251 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4252 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4253 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4254 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4255 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4256 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4257 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4264 /* Write out debugging information. */
4267 write_debugging_info (bfd
*obfd
, void *dhandle
,
4268 long *symcountp ATTRIBUTE_UNUSED
,
4269 asymbol
***symppp ATTRIBUTE_UNUSED
)
4271 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4272 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4274 bfd_byte
*syms
, *strings
= NULL
;
4275 bfd_size_type symsize
, stringsize
;
4276 asection
*stabsec
, *stabstrsec
;
4279 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4284 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4285 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4286 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4288 || stabstrsec
== NULL
4289 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
4290 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
4291 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
4292 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
4294 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4295 _("can't create debugging section"));
4300 /* We can get away with setting the section contents now because
4301 the next thing the caller is going to do is copy over the
4302 real sections. We may someday have to split the contents
4303 setting out of this function. */
4304 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4305 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4308 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4309 _("can't set debugging section contents"));
4317 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4318 _("don't know how to write debugging information for %s"),
4319 bfd_get_target (obfd
));
4323 /* If neither -D nor -U was specified explicitly,
4324 then use the configured default. */
4326 default_deterministic (void)
4328 if (deterministic
< 0)
4329 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4333 strip_main (int argc
, char *argv
[])
4335 char *input_target
= NULL
;
4336 char *output_target
= NULL
;
4337 bfd_boolean show_version
= FALSE
;
4338 bfd_boolean formats_info
= FALSE
;
4341 char *output_file
= NULL
;
4345 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4346 strip_options
, (int *) 0)) != EOF
)
4351 input_target
= optarg
;
4354 output_target
= optarg
;
4357 input_target
= output_target
= optarg
;
4360 handle_remove_section_option (optarg
);
4362 case OPTION_REMOVE_RELOCS
:
4363 handle_remove_relocations_option (optarg
);
4366 strip_symbols
= STRIP_ALL
;
4370 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4371 strip_symbols
= STRIP_DEBUG
;
4373 case OPTION_STRIP_DWO
:
4374 strip_symbols
= STRIP_DWO
;
4376 case OPTION_STRIP_UNNEEDED
:
4377 strip_symbols
= STRIP_UNNEEDED
;
4380 add_specific_symbol (optarg
, keep_specific_htab
);
4385 case OPTION_NO_MERGE_NOTES
:
4386 merge_notes
= FALSE
;
4389 add_specific_symbol (optarg
, strip_specific_htab
);
4392 output_file
= optarg
;
4395 preserve_dates
= TRUE
;
4398 deterministic
= TRUE
;
4401 deterministic
= FALSE
;
4404 discard_locals
= LOCALS_ALL
;
4407 discard_locals
= LOCALS_START_L
;
4413 show_version
= TRUE
;
4415 case OPTION_FORMATS_INFO
:
4416 formats_info
= TRUE
;
4418 case OPTION_ONLY_KEEP_DEBUG
:
4419 strip_symbols
= STRIP_NONDEBUG
;
4421 case OPTION_KEEP_FILE_SYMBOLS
:
4422 keep_file_symbols
= 1;
4425 /* We've been given a long option. */
4432 strip_usage (stdout
, 0);
4434 strip_usage (stderr
, 1);
4445 print_version ("strip");
4447 default_deterministic ();
4449 /* Default is to strip all symbols. */
4450 if (strip_symbols
== STRIP_UNDEF
4451 && discard_locals
== LOCALS_UNDEF
4452 && htab_elements (strip_specific_htab
) == 0)
4453 strip_symbols
= STRIP_ALL
;
4455 if (output_target
== NULL
)
4456 output_target
= input_target
;
4460 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4461 strip_usage (stderr
, 1);
4463 for (; i
< argc
; i
++)
4465 int hold_status
= status
;
4466 struct stat statbuf
;
4469 if (get_file_size (argv
[i
]) < 1)
4476 /* No need to check the return value of stat().
4477 It has already been checked in get_file_size(). */
4478 stat (argv
[i
], &statbuf
);
4480 if (output_file
== NULL
4481 || filename_cmp (argv
[i
], output_file
) == 0)
4482 tmpname
= make_tempname (argv
[i
]);
4484 tmpname
= output_file
;
4486 if (tmpname
== NULL
)
4488 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4489 _("could not create temporary file to hold stripped copy"));
4495 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4499 set_times (tmpname
, &statbuf
);
4500 if (output_file
!= tmpname
)
4501 status
= (smart_rename (tmpname
,
4502 output_file
? output_file
: argv
[i
],
4503 preserve_dates
) != 0);
4505 status
= hold_status
;
4508 unlink_if_ordinary (tmpname
);
4509 if (output_file
!= tmpname
)
4516 /* Set up PE subsystem. */
4519 set_pe_subsystem (const char *s
)
4521 const char *version
, *subsystem
;
4531 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4532 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4533 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4534 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4535 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4536 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4537 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4538 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4539 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4540 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4546 /* Check for the presence of a version number. */
4547 version
= strchr (s
, ':');
4548 if (version
== NULL
)
4552 int len
= version
- s
;
4556 version
= copy
+ 1 + len
;
4557 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4559 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4561 non_fatal (_("%s: bad version in PE subsystem"), s
);
4564 /* Check for numeric subsystem. */
4565 value
= (short) strtol (subsystem
, ©
, 0);
4568 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4569 if (v
[i
].value
== value
)
4571 pe_subsystem
= value
;
4572 set_def
= v
[i
].set_def
;
4578 /* Search for subsystem by name. */
4579 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4580 if (strcmp (subsystem
, v
[i
].name
) == 0)
4582 pe_subsystem
= v
[i
].value
;
4583 set_def
= v
[i
].set_def
;
4591 fatal (_("unknown PE subsystem: %s"), s
);
4596 if (pe_file_alignment
== (bfd_vma
) -1)
4597 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4598 if (pe_section_alignment
== (bfd_vma
) -1)
4599 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4603 free ((char *) subsystem
);
4606 /* Convert EFI target to PEI target. */
4609 convert_efi_target (char *efi
)
4615 if (strcmp (efi
+ 4, "ia32") == 0)
4617 /* Change ia32 to i386. */
4622 else if (strcmp (efi
+ 4, "x86_64") == 0)
4624 /* Change x86_64 to x86-64. */
4629 /* Allocate and return a pointer to a struct section_add, initializing the
4630 structure using ARG, a string in the format "sectionname=filename".
4631 The returned structure will have its next pointer set to NEXT. The
4632 OPTION field is the name of the command line option currently being
4633 parsed, and is only used if an error needs to be reported. */
4635 static struct section_add
*
4636 init_section_add (const char *arg
,
4637 struct section_add
*next
,
4640 struct section_add
*pa
;
4643 s
= strchr (arg
, '=');
4645 fatal (_("bad format for %s"), option
);
4647 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4648 pa
->name
= xstrndup (arg
, s
- arg
);
4649 pa
->filename
= s
+ 1;
4651 pa
->contents
= NULL
;
4657 /* Load the file specified in PA, allocating memory to hold the file
4658 contents, and store a pointer to the allocated memory in the contents
4659 field of PA. The size field of PA is also updated. All errors call
4663 section_add_load_file (struct section_add
*pa
)
4668 /* We don't use get_file_size so that we can do
4669 --add-section .note.GNU_stack=/dev/null
4670 get_file_size doesn't work on /dev/null. */
4672 f
= fopen (pa
->filename
, FOPEN_RB
);
4674 fatal (_("cannot open: %s: %s"),
4675 pa
->filename
, strerror (errno
));
4679 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
4687 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
4690 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
4692 fatal (_("%s: fread failed"), pa
->filename
);
4703 copy_main (int argc
, char *argv
[])
4705 char *input_filename
= NULL
;
4706 char *output_filename
= NULL
;
4708 char *input_target
= NULL
;
4709 char *output_target
= NULL
;
4710 bfd_boolean show_version
= FALSE
;
4711 bfd_boolean change_warn
= TRUE
;
4712 bfd_boolean formats_info
= FALSE
;
4714 struct stat statbuf
;
4715 const bfd_arch_info_type
*input_arch
= NULL
;
4717 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
4718 copy_options
, (int *) 0)) != EOF
)
4723 copy_byte
= atoi (optarg
);
4725 fatal (_("byte number must be non-negative"));
4729 input_arch
= bfd_scan_arch (optarg
);
4730 if (input_arch
== NULL
)
4731 fatal (_("architecture %s unknown"), optarg
);
4737 interleave
= atoi (optarg
);
4739 fatal (_("interleave must be positive"));
4745 case OPTION_INTERLEAVE_WIDTH
:
4746 copy_width
= atoi (optarg
);
4748 fatal(_("interleave width must be positive"));
4752 case 's': /* "source" - 'I' is preferred */
4753 input_target
= optarg
;
4757 case 'd': /* "destination" - 'O' is preferred */
4758 output_target
= optarg
;
4762 input_target
= output_target
= optarg
;
4766 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
4767 sections_copied
= TRUE
;
4771 handle_remove_section_option (optarg
);
4774 case OPTION_REMOVE_RELOCS
:
4775 handle_remove_relocations_option (optarg
);
4779 strip_symbols
= STRIP_ALL
;
4783 strip_symbols
= STRIP_DEBUG
;
4786 case OPTION_STRIP_DWO
:
4787 strip_symbols
= STRIP_DWO
;
4790 case OPTION_STRIP_UNNEEDED
:
4791 strip_symbols
= STRIP_UNNEEDED
;
4794 case OPTION_ONLY_KEEP_DEBUG
:
4795 strip_symbols
= STRIP_NONDEBUG
;
4798 case OPTION_KEEP_FILE_SYMBOLS
:
4799 keep_file_symbols
= 1;
4802 case OPTION_ADD_GNU_DEBUGLINK
:
4803 long_section_names
= ENABLE
;
4804 gnu_debuglink_filename
= optarg
;
4808 add_specific_symbol (optarg
, keep_specific_htab
);
4814 case OPTION_NO_MERGE_NOTES
:
4815 merge_notes
= FALSE
;
4819 add_specific_symbol (optarg
, strip_specific_htab
);
4822 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4823 add_specific_symbol (optarg
, strip_unneeded_htab
);
4827 add_specific_symbol (optarg
, localize_specific_htab
);
4830 case OPTION_GLOBALIZE_SYMBOL
:
4831 add_specific_symbol (optarg
, globalize_specific_htab
);
4835 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4839 add_specific_symbol (optarg
, weaken_specific_htab
);
4843 preserve_dates
= TRUE
;
4847 deterministic
= TRUE
;
4851 deterministic
= FALSE
;
4859 discard_locals
= LOCALS_ALL
;
4863 discard_locals
= LOCALS_START_L
;
4871 show_version
= TRUE
;
4874 case OPTION_FORMATS_INFO
:
4875 formats_info
= TRUE
;
4882 case OPTION_ADD_SECTION
:
4883 add_sections
= init_section_add (optarg
, add_sections
,
4885 section_add_load_file (add_sections
);
4888 case OPTION_UPDATE_SECTION
:
4889 update_sections
= init_section_add (optarg
, update_sections
,
4890 "--update-section");
4891 section_add_load_file (update_sections
);
4894 case OPTION_DUMP_SECTION
:
4895 dump_sections
= init_section_add (optarg
, dump_sections
,
4899 case OPTION_ADD_SYMBOL
:
4902 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4904 newsym
->next
= NULL
;
4905 s
= strchr (optarg
, '=');
4907 fatal (_("bad format for %s"), "--add-symbol");
4908 t
= strchr (s
+ 1, ':');
4910 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4913 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4914 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4918 newsym
->section
= NULL
;
4919 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4923 t
= strchr (t
+ 1, ',');
4924 newsym
->othersym
= NULL
;
4926 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4928 newsym
->flags
= BSF_GLOBAL
;
4930 /* Keep 'othersym' symbols at the front of the list. */
4931 if (newsym
->othersym
)
4933 newsym
->next
= add_sym_list
;
4935 add_sym_tail
= &newsym
->next
;
4936 add_sym_list
= newsym
;
4940 *add_sym_tail
= newsym
;
4941 add_sym_tail
= &newsym
->next
;
4947 case OPTION_CHANGE_START
:
4948 change_start
= parse_vma (optarg
, "--change-start");
4951 case OPTION_CHANGE_SECTION_ADDRESS
:
4952 case OPTION_CHANGE_SECTION_LMA
:
4953 case OPTION_CHANGE_SECTION_VMA
:
4955 struct section_list
* p
;
4956 unsigned int context
= 0;
4960 char *option
= NULL
;
4965 case OPTION_CHANGE_SECTION_ADDRESS
:
4966 option
= "--change-section-address";
4967 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4969 case OPTION_CHANGE_SECTION_LMA
:
4970 option
= "--change-section-lma";
4971 context
= SECTION_CONTEXT_ALTER_LMA
;
4973 case OPTION_CHANGE_SECTION_VMA
:
4974 option
= "--change-section-vma";
4975 context
= SECTION_CONTEXT_ALTER_VMA
;
4979 s
= strchr (optarg
, '=');
4982 s
= strchr (optarg
, '+');
4985 s
= strchr (optarg
, '-');
4987 fatal (_("bad format for %s"), option
);
4992 /* Correct the context. */
4995 case OPTION_CHANGE_SECTION_ADDRESS
:
4996 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4998 case OPTION_CHANGE_SECTION_LMA
:
4999 context
= SECTION_CONTEXT_SET_LMA
;
5001 case OPTION_CHANGE_SECTION_VMA
:
5002 context
= SECTION_CONTEXT_SET_VMA
;
5008 name
= (char *) xmalloc (len
+ 1);
5009 strncpy (name
, optarg
, len
);
5012 p
= find_section_list (name
, TRUE
, context
);
5014 val
= parse_vma (s
+ 1, option
);
5020 case OPTION_CHANGE_SECTION_ADDRESS
:
5024 case OPTION_CHANGE_SECTION_LMA
:
5028 case OPTION_CHANGE_SECTION_VMA
:
5035 case OPTION_CHANGE_ADDRESSES
:
5036 change_section_address
= parse_vma (optarg
, "--change-addresses");
5037 change_start
= change_section_address
;
5040 case OPTION_CHANGE_WARNINGS
:
5044 case OPTION_CHANGE_LEADING_CHAR
:
5045 change_leading_char
= TRUE
;
5048 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5051 if (strcasecmp (optarg
, "none") == 0)
5052 do_debug_sections
= decompress
;
5053 else if (strcasecmp (optarg
, "zlib") == 0)
5054 do_debug_sections
= compress_zlib
;
5055 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5056 do_debug_sections
= compress_gnu_zlib
;
5057 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5058 do_debug_sections
= compress_gabi_zlib
;
5060 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5064 do_debug_sections
= compress
;
5067 case OPTION_DEBUGGING
:
5068 convert_debugging
= TRUE
;
5071 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5072 do_debug_sections
= decompress
;
5075 case OPTION_ELF_STT_COMMON
:
5076 if (strcasecmp (optarg
, "yes") == 0)
5077 do_elf_stt_common
= elf_stt_common
;
5078 else if (strcasecmp (optarg
, "no") == 0)
5079 do_elf_stt_common
= no_elf_stt_common
;
5081 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5085 case OPTION_GAP_FILL
:
5087 bfd_vma gap_fill_vma
;
5089 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5090 gap_fill
= (bfd_byte
) gap_fill_vma
;
5091 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5095 sprintf_vma (buff
, gap_fill_vma
);
5097 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5100 gap_fill_set
= TRUE
;
5104 case OPTION_NO_CHANGE_WARNINGS
:
5105 change_warn
= FALSE
;
5109 pad_to
= parse_vma (optarg
, "--pad-to");
5113 case OPTION_REMOVE_LEADING_CHAR
:
5114 remove_leading_char
= TRUE
;
5117 case OPTION_REDEFINE_SYM
:
5119 /* Insert this redefinition onto redefine_specific_htab. */
5123 const char *nextarg
;
5124 char *source
, *target
;
5126 s
= strchr (optarg
, '=');
5128 fatal (_("bad format for %s"), "--redefine-sym");
5131 source
= (char *) xmalloc (len
+ 1);
5132 strncpy (source
, optarg
, len
);
5136 len
= strlen (nextarg
);
5137 target
= (char *) xmalloc (len
+ 1);
5138 strcpy (target
, nextarg
);
5140 add_redefine_and_check ("--redefine-sym", source
, target
);
5147 case OPTION_REDEFINE_SYMS
:
5148 add_redefine_syms_file (optarg
);
5151 case OPTION_SET_SECTION_FLAGS
:
5153 struct section_list
*p
;
5158 s
= strchr (optarg
, '=');
5160 fatal (_("bad format for %s"), "--set-section-flags");
5163 name
= (char *) xmalloc (len
+ 1);
5164 strncpy (name
, optarg
, len
);
5167 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5169 p
->flags
= parse_flags (s
+ 1);
5173 case OPTION_RENAME_SECTION
:
5176 const char *eq
, *fl
;
5181 eq
= strchr (optarg
, '=');
5183 fatal (_("bad format for %s"), "--rename-section");
5187 fatal (_("bad format for %s"), "--rename-section");
5189 old_name
= (char *) xmalloc (len
+ 1);
5190 strncpy (old_name
, optarg
, len
);
5194 fl
= strchr (eq
, ',');
5197 flags
= parse_flags (fl
+ 1);
5207 fatal (_("bad format for %s"), "--rename-section");
5209 new_name
= (char *) xmalloc (len
+ 1);
5210 strncpy (new_name
, eq
, len
);
5213 add_section_rename (old_name
, new_name
, flags
);
5217 case OPTION_SET_START
:
5218 set_start
= parse_vma (optarg
, "--set-start");
5219 set_start_set
= TRUE
;
5222 case OPTION_SREC_LEN
:
5223 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5226 case OPTION_SREC_FORCES3
:
5227 _bfd_srec_forceS3
= TRUE
;
5230 case OPTION_STRIP_SYMBOLS
:
5231 add_specific_symbols (optarg
, strip_specific_htab
);
5234 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5235 add_specific_symbols (optarg
, strip_unneeded_htab
);
5238 case OPTION_KEEP_SYMBOLS
:
5239 add_specific_symbols (optarg
, keep_specific_htab
);
5242 case OPTION_LOCALIZE_HIDDEN
:
5243 localize_hidden
= TRUE
;
5246 case OPTION_LOCALIZE_SYMBOLS
:
5247 add_specific_symbols (optarg
, localize_specific_htab
);
5250 case OPTION_LONG_SECTION_NAMES
:
5251 if (!strcmp ("enable", optarg
))
5252 long_section_names
= ENABLE
;
5253 else if (!strcmp ("disable", optarg
))
5254 long_section_names
= DISABLE
;
5255 else if (!strcmp ("keep", optarg
))
5256 long_section_names
= KEEP
;
5258 fatal (_("unknown long section names option '%s'"), optarg
);
5261 case OPTION_GLOBALIZE_SYMBOLS
:
5262 add_specific_symbols (optarg
, globalize_specific_htab
);
5265 case OPTION_KEEPGLOBAL_SYMBOLS
:
5266 add_specific_symbols (optarg
, keepglobal_specific_htab
);
5269 case OPTION_WEAKEN_SYMBOLS
:
5270 add_specific_symbols (optarg
, weaken_specific_htab
);
5273 case OPTION_ALT_MACH_CODE
:
5274 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5275 if (use_alt_mach_code
== 0)
5276 fatal (_("unable to parse alternative machine code"));
5279 case OPTION_PREFIX_SYMBOLS
:
5280 prefix_symbols_string
= optarg
;
5283 case OPTION_PREFIX_SECTIONS
:
5284 prefix_sections_string
= optarg
;
5287 case OPTION_PREFIX_ALLOC_SECTIONS
:
5288 prefix_alloc_sections_string
= optarg
;
5291 case OPTION_READONLY_TEXT
:
5292 bfd_flags_to_set
|= WP_TEXT
;
5293 bfd_flags_to_clear
&= ~WP_TEXT
;
5296 case OPTION_WRITABLE_TEXT
:
5297 bfd_flags_to_clear
|= WP_TEXT
;
5298 bfd_flags_to_set
&= ~WP_TEXT
;
5302 bfd_flags_to_set
|= D_PAGED
;
5303 bfd_flags_to_clear
&= ~D_PAGED
;
5307 bfd_flags_to_clear
|= D_PAGED
;
5308 bfd_flags_to_set
&= ~D_PAGED
;
5311 case OPTION_EXTRACT_DWO
:
5312 strip_symbols
= STRIP_NONDWO
;
5315 case OPTION_EXTRACT_SYMBOL
:
5316 extract_symbol
= TRUE
;
5319 case OPTION_REVERSE_BYTES
:
5321 int prev
= reverse_bytes
;
5323 reverse_bytes
= atoi (optarg
);
5324 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5325 fatal (_("number of bytes to reverse must be positive and even"));
5327 if (prev
&& prev
!= reverse_bytes
)
5328 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5333 case OPTION_FILE_ALIGNMENT
:
5334 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5340 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5342 || (*end
!= '.' && *end
!= '\0'))
5343 non_fatal (_("%s: invalid reserve value for --heap"),
5345 else if (*end
!= '\0')
5347 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5349 non_fatal (_("%s: invalid commit value for --heap"),
5355 case OPTION_IMAGE_BASE
:
5356 pe_image_base
= parse_vma (optarg
, "--image-base");
5359 case OPTION_SECTION_ALIGNMENT
:
5360 pe_section_alignment
= parse_vma (optarg
,
5361 "--section-alignment");
5364 case OPTION_SUBSYSTEM
:
5365 set_pe_subsystem (optarg
);
5371 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5373 || (*end
!= '.' && *end
!= '\0'))
5374 non_fatal (_("%s: invalid reserve value for --stack"),
5376 else if (*end
!= '\0')
5378 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5380 non_fatal (_("%s: invalid commit value for --stack"),
5387 /* We've been given a long option. */
5392 copy_usage (stdout
, 0);
5395 copy_usage (stderr
, 1);
5406 print_version ("objcopy");
5408 if (interleave
&& copy_byte
== -1)
5409 fatal (_("interleave start byte must be set with --byte"));
5411 if (copy_byte
>= interleave
)
5412 fatal (_("byte number must be less than interleave"));
5414 if (copy_width
> interleave
- copy_byte
)
5415 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5417 if (optind
== argc
|| optind
+ 2 < argc
)
5418 copy_usage (stderr
, 1);
5420 input_filename
= argv
[optind
];
5421 if (optind
+ 1 < argc
)
5422 output_filename
= argv
[optind
+ 1];
5424 default_deterministic ();
5426 /* Default is to strip no symbols. */
5427 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5428 strip_symbols
= STRIP_NONE
;
5430 if (output_target
== NULL
)
5431 output_target
= input_target
;
5433 /* Convert input EFI target to PEI target. */
5434 if (input_target
!= NULL
5435 && strncmp (input_target
, "efi-", 4) == 0)
5439 efi
= xstrdup (output_target
+ 4);
5440 if (strncmp (efi
, "bsdrv-", 6) == 0
5441 || strncmp (efi
, "rtdrv-", 6) == 0)
5443 else if (strncmp (efi
, "app-", 4) != 0)
5444 fatal (_("unknown input EFI target: %s"), input_target
);
5447 convert_efi_target (efi
);
5450 /* Convert output EFI target to PEI target. */
5451 if (output_target
!= NULL
5452 && strncmp (output_target
, "efi-", 4) == 0)
5456 efi
= xstrdup (output_target
+ 4);
5457 if (strncmp (efi
, "app-", 4) == 0)
5459 if (pe_subsystem
== -1)
5460 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5462 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5464 if (pe_subsystem
== -1)
5465 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5468 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5470 if (pe_subsystem
== -1)
5471 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5475 fatal (_("unknown output EFI target: %s"), output_target
);
5477 if (pe_file_alignment
== (bfd_vma
) -1)
5478 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5479 if (pe_section_alignment
== (bfd_vma
) -1)
5480 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5482 output_target
= efi
;
5483 convert_efi_target (efi
);
5487 if (stat (input_filename
, & statbuf
) < 0)
5488 fatal (_("warning: could not locate '%s'. System error message: %s"),
5489 input_filename
, strerror (errno
));
5491 /* If there is no destination file, or the source and destination files
5492 are the same, then create a temp and rename the result into the input. */
5493 if (output_filename
== NULL
5494 || filename_cmp (input_filename
, output_filename
) == 0)
5495 tmpname
= make_tempname (input_filename
);
5497 tmpname
= output_filename
;
5499 if (tmpname
== NULL
)
5500 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5501 input_filename
, strerror (errno
));
5503 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5507 set_times (tmpname
, &statbuf
);
5508 if (tmpname
!= output_filename
)
5509 status
= (smart_rename (tmpname
, input_filename
,
5510 preserve_dates
) != 0);
5513 unlink_if_ordinary (tmpname
);
5515 if (tmpname
!= output_filename
)
5520 struct section_list
*p
;
5522 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5526 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5530 sprintf_vma (buff
, p
->vma_val
);
5532 /* xgettext:c-format */
5533 non_fatal (_("%s %s%c0x%s never used"),
5534 "--change-section-vma",
5536 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5540 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5544 sprintf_vma (buff
, p
->lma_val
);
5546 /* xgettext:c-format */
5547 non_fatal (_("%s %s%c0x%s never used"),
5548 "--change-section-lma",
5550 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5561 main (int argc
, char *argv
[])
5563 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5564 setlocale (LC_MESSAGES
, "");
5566 #if defined (HAVE_SETLOCALE)
5567 setlocale (LC_CTYPE
, "");
5569 bindtextdomain (PACKAGE
, LOCALEDIR
);
5570 textdomain (PACKAGE
);
5572 program_name
= argv
[0];
5573 xmalloc_set_program_name (program_name
);
5575 START_PROGRESS (program_name
, 0);
5577 expandargv (&argc
, &argv
);
5579 strip_symbols
= STRIP_UNDEF
;
5580 discard_locals
= LOCALS_UNDEF
;
5583 set_default_bfd_target ();
5587 int i
= strlen (program_name
);
5588 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5589 /* Drop the .exe suffix, if any. */
5590 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
5593 program_name
[i
] = '\0';
5596 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
5599 create_symbol_htabs ();
5602 bfd_set_error_program_name (argv
[0]);
5605 strip_main (argc
, argv
);
5607 copy_main (argc
, argv
);
5609 END_PROGRESS (program_name
);