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 static char *strip_specific_buffer
= NULL
;
257 static char *strip_unneeded_buffer
= NULL
;
258 static char *keep_specific_buffer
= NULL
;
259 static char *localize_specific_buffer
= NULL
;
260 static char *globalize_specific_buffer
= NULL
;
261 static char *keepglobal_specific_buffer
= NULL
;
262 static char *weaken_specific_buffer
= NULL
;
264 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
265 static bfd_boolean weaken
= FALSE
;
267 /* If this is TRUE, we retain BSF_FILE symbols. */
268 static bfd_boolean keep_file_symbols
= FALSE
;
270 /* Prefix symbols/sections. */
271 static char *prefix_symbols_string
= 0;
272 static char *prefix_sections_string
= 0;
273 static char *prefix_alloc_sections_string
= 0;
275 /* True if --extract-symbol was passed on the command line. */
276 static bfd_boolean extract_symbol
= FALSE
;
278 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
279 of <reverse_bytes> bytes within each output section. */
280 static int reverse_bytes
= 0;
282 /* For Coff objects, we may want to allow or disallow long section names,
283 or preserve them where found in the inputs. Debug info relies on them. */
284 enum long_section_name_handling
291 /* The default long section handling mode is to preserve them.
292 This is also the only behaviour for 'strip'. */
293 static enum long_section_name_handling long_section_names
= KEEP
;
295 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
296 enum command_line_switch
298 OPTION_ADD_SECTION
=150,
299 OPTION_ADD_GNU_DEBUGLINK
,
301 OPTION_ALT_MACH_CODE
,
302 OPTION_CHANGE_ADDRESSES
,
303 OPTION_CHANGE_LEADING_CHAR
,
304 OPTION_CHANGE_SECTION_ADDRESS
,
305 OPTION_CHANGE_SECTION_LMA
,
306 OPTION_CHANGE_SECTION_VMA
,
308 OPTION_CHANGE_WARNINGS
,
309 OPTION_COMPRESS_DEBUG_SECTIONS
,
311 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
313 OPTION_ELF_STT_COMMON
,
315 OPTION_EXTRACT_SYMBOL
,
316 OPTION_FILE_ALIGNMENT
,
319 OPTION_GLOBALIZE_SYMBOL
,
320 OPTION_GLOBALIZE_SYMBOLS
,
324 OPTION_INTERLEAVE_WIDTH
,
325 OPTION_KEEPGLOBAL_SYMBOLS
,
326 OPTION_KEEP_FILE_SYMBOLS
,
328 OPTION_LOCALIZE_HIDDEN
,
329 OPTION_LOCALIZE_SYMBOLS
,
330 OPTION_LONG_SECTION_NAMES
,
332 OPTION_NO_MERGE_NOTES
,
333 OPTION_NO_CHANGE_WARNINGS
,
334 OPTION_ONLY_KEEP_DEBUG
,
336 OPTION_PREFIX_ALLOC_SECTIONS
,
337 OPTION_PREFIX_SECTIONS
,
338 OPTION_PREFIX_SYMBOLS
,
340 OPTION_READONLY_TEXT
,
342 OPTION_REDEFINE_SYMS
,
343 OPTION_REMOVE_LEADING_CHAR
,
344 OPTION_REMOVE_RELOCS
,
345 OPTION_RENAME_SECTION
,
346 OPTION_REVERSE_BYTES
,
347 OPTION_SECTION_ALIGNMENT
,
348 OPTION_SET_SECTION_FLAGS
,
354 OPTION_STRIP_SYMBOLS
,
355 OPTION_STRIP_UNNEEDED
,
356 OPTION_STRIP_UNNEEDED_SYMBOL
,
357 OPTION_STRIP_UNNEEDED_SYMBOLS
,
359 OPTION_UPDATE_SECTION
,
361 OPTION_WEAKEN_SYMBOLS
,
365 /* Options to handle if running as "strip". */
367 static struct option strip_options
[] =
369 {"disable-deterministic-archives", no_argument
, 0, 'U'},
370 {"discard-all", no_argument
, 0, 'x'},
371 {"discard-locals", no_argument
, 0, 'X'},
372 {"enable-deterministic-archives", no_argument
, 0, 'D'},
373 {"format", required_argument
, 0, 'F'}, /* Obsolete */
374 {"help", no_argument
, 0, 'h'},
375 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
376 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
377 {"input-target", required_argument
, 0, 'I'},
378 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
379 {"keep-symbol", required_argument
, 0, 'K'},
380 {"merge-notes", no_argument
, 0, 'M'},
381 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
382 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
383 {"output-file", required_argument
, 0, 'o'},
384 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
385 {"output-target", required_argument
, 0, 'O'},
386 {"preserve-dates", no_argument
, 0, 'p'},
387 {"remove-section", required_argument
, 0, 'R'},
388 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
389 {"strip-all", no_argument
, 0, 's'},
390 {"strip-debug", no_argument
, 0, 'S'},
391 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
392 {"strip-symbol", required_argument
, 0, 'N'},
393 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
394 {"target", required_argument
, 0, 'F'},
395 {"verbose", no_argument
, 0, 'v'},
396 {"version", no_argument
, 0, 'V'},
397 {"wildcard", no_argument
, 0, 'w'},
398 {0, no_argument
, 0, 0}
401 /* Options to handle if running as "objcopy". */
403 static struct option copy_options
[] =
405 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
406 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
407 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
408 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
409 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
410 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
411 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
412 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
413 {"binary-architecture", required_argument
, 0, 'B'},
414 {"byte", required_argument
, 0, 'b'},
415 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
416 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
417 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
418 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
419 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
420 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
421 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
422 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
423 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
424 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
425 {"disable-deterministic-archives", no_argument
, 0, 'U'},
426 {"discard-all", no_argument
, 0, 'x'},
427 {"discard-locals", no_argument
, 0, 'X'},
428 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
429 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
430 {"enable-deterministic-archives", no_argument
, 0, 'D'},
431 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
432 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
433 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
434 {"format", required_argument
, 0, 'F'}, /* Obsolete */
435 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
436 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
437 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
438 {"heap", required_argument
, 0, OPTION_HEAP
},
439 {"help", no_argument
, 0, 'h'},
440 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
441 {"impure", no_argument
, 0, OPTION_IMPURE
},
442 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
443 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
444 {"input-target", required_argument
, 0, 'I'},
445 {"interleave", optional_argument
, 0, 'i'},
446 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
447 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
448 {"keep-global-symbol", required_argument
, 0, 'G'},
449 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
450 {"keep-symbol", required_argument
, 0, 'K'},
451 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
452 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
453 {"localize-symbol", required_argument
, 0, 'L'},
454 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
455 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
456 {"merge-notes", no_argument
, 0, 'M'},
457 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
458 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
459 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
460 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
461 {"only-section", required_argument
, 0, 'j'},
462 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
463 {"output-target", required_argument
, 0, 'O'},
464 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
465 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
466 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
467 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
468 {"preserve-dates", no_argument
, 0, 'p'},
469 {"pure", no_argument
, 0, OPTION_PURE
},
470 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
471 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
472 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
473 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
474 {"remove-section", required_argument
, 0, 'R'},
475 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
476 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
477 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
478 {"section-alignment", required_argument
, 0, OPTION_SECTION_ALIGNMENT
},
479 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
480 {"set-start", required_argument
, 0, OPTION_SET_START
},
481 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
482 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
483 {"stack", required_argument
, 0, OPTION_STACK
},
484 {"strip-all", no_argument
, 0, 'S'},
485 {"strip-debug", no_argument
, 0, 'g'},
486 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
487 {"strip-symbol", required_argument
, 0, 'N'},
488 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
489 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
490 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
491 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
492 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
493 {"target", required_argument
, 0, 'F'},
494 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
495 {"verbose", no_argument
, 0, 'v'},
496 {"version", no_argument
, 0, 'V'},
497 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
498 {"weaken-symbol", required_argument
, 0, 'W'},
499 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
500 {"wildcard", no_argument
, 0, 'w'},
501 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
502 {0, no_argument
, 0, 0}
506 extern char *program_name
;
508 /* This flag distinguishes between strip and objcopy:
509 1 means this is 'strip'; 0 means this is 'objcopy'.
510 -1 means if we should use argv[0] to decide. */
513 /* The maximum length of an S record. This variable is defined in srec.c
514 and can be modified by the --srec-len parameter. */
515 extern unsigned int _bfd_srec_len
;
517 /* Restrict the generation of Srecords to type S3 only.
518 This variable is defined in bfd/srec.c and can be toggled
519 on by the --srec-forceS3 command line switch. */
520 extern bfd_boolean _bfd_srec_forceS3
;
522 /* Forward declarations. */
523 static void setup_section (bfd
*, asection
*, void *);
524 static void setup_bfd_headers (bfd
*, bfd
*);
525 static void copy_relocations_in_section (bfd
*, asection
*, void *);
526 static void copy_section (bfd
*, asection
*, void *);
527 static void get_sections (bfd
*, asection
*, void *);
528 static int compare_section_lma (const void *, const void *);
529 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
530 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
531 static const char *lookup_sym_redefinition (const char *);
532 static const char *find_section_rename (const char *, flagword
*);
534 ATTRIBUTE_NORETURN
static void
535 copy_usage (FILE *stream
, int exit_status
)
537 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
538 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
539 fprintf (stream
, _(" The options are:\n"));
540 fprintf (stream
, _("\
541 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
542 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
543 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
544 -F --target <bfdname> Set both input and output format to <bfdname>\n\
545 --debugging Convert debugging information, if possible\n\
546 -p --preserve-dates Copy modified/access timestamps to the output\n"));
547 if (DEFAULT_AR_DETERMINISTIC
)
548 fprintf (stream
, _("\
549 -D --enable-deterministic-archives\n\
550 Produce deterministic output when stripping archives (default)\n\
551 -U --disable-deterministic-archives\n\
552 Disable -D behavior\n"));
554 fprintf (stream
, _("\
555 -D --enable-deterministic-archives\n\
556 Produce deterministic output when stripping archives\n\
557 -U --disable-deterministic-archives\n\
558 Disable -D behavior (default)\n"));
559 fprintf (stream
, _("\
560 -j --only-section <name> Only copy section <name> into the output\n\
561 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
562 -R --remove-section <name> Remove section <name> from the output\n\
563 --remove-relocations <name> Remove relocations from section <name>\n\
564 -S --strip-all Remove all symbol and relocation information\n\
565 -g --strip-debug Remove all debugging symbols & sections\n\
566 --strip-dwo Remove all DWO sections\n\
567 --strip-unneeded Remove all symbols not needed by relocations\n\
568 -N --strip-symbol <name> Do not copy symbol <name>\n\
569 --strip-unneeded-symbol <name>\n\
570 Do not copy symbol <name> unless needed by\n\
572 --only-keep-debug Strip everything but the debug information\n\
573 --extract-dwo Copy only DWO sections\n\
574 --extract-symbol Remove section contents but keep symbols\n\
575 -K --keep-symbol <name> Do not strip symbol <name>\n\
576 --keep-file-symbols Do not strip file symbol(s)\n\
577 --localize-hidden Turn all ELF hidden symbols into locals\n\
578 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
579 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
580 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
581 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
582 --weaken Force all global symbols to be marked as weak\n\
583 -w --wildcard Permit wildcard in symbol comparison\n\
584 -x --discard-all Remove all non-global symbols\n\
585 -X --discard-locals Remove any compiler-generated symbols\n\
586 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
587 --interleave-width <number> Set N for --interleave\n\
588 -b --byte <num> Select byte <num> in every interleaved block\n\
589 --gap-fill <val> Fill gaps between sections with <val>\n\
590 --pad-to <addr> Pad the last section up to address <addr>\n\
591 --set-start <addr> Set the start address to <addr>\n\
592 {--change-start|--adjust-start} <incr>\n\
593 Add <incr> to the start address\n\
594 {--change-addresses|--adjust-vma} <incr>\n\
595 Add <incr> to LMA, VMA and start addresses\n\
596 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
597 Change LMA and VMA of section <name> by <val>\n\
598 --change-section-lma <name>{=|+|-}<val>\n\
599 Change the LMA of section <name> by <val>\n\
600 --change-section-vma <name>{=|+|-}<val>\n\
601 Change the VMA of section <name> by <val>\n\
602 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
603 Warn if a named section does not exist\n\
604 --set-section-flags <name>=<flags>\n\
605 Set section <name>'s properties to <flags>\n\
606 --add-section <name>=<file> Add section <name> found in <file> to output\n\
607 --update-section <name>=<file>\n\
608 Update contents of section <name> with\n\
609 contents found in <file>\n\
610 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
611 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
612 --long-section-names {enable|disable|keep}\n\
613 Handle long section names in Coff objects.\n\
614 --change-leading-char Force output format's leading character style\n\
615 --remove-leading-char Remove leading character from global symbols\n\
616 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
617 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
618 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
620 --srec-len <number> Restrict the length of generated Srecords\n\
621 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
622 --strip-symbols <file> -N for all symbols listed in <file>\n\
623 --strip-unneeded-symbols <file>\n\
624 --strip-unneeded-symbol for all symbols listed\n\
626 --keep-symbols <file> -K for all symbols listed in <file>\n\
627 --localize-symbols <file> -L for all symbols listed in <file>\n\
628 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
629 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
630 --weaken-symbols <file> -W for all symbols listed in <file>\n\
631 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
632 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
633 --writable-text Mark the output text as writable\n\
634 --readonly-text Make the output text write protected\n\
635 --pure Mark the output file as demand paged\n\
636 --impure Mark the output file as impure\n\
637 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
638 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
639 --prefix-alloc-sections <prefix>\n\
640 Add <prefix> to start of every allocatable\n\
642 --file-alignment <num> Set PE file alignment to <num>\n\
643 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
645 --image-base <address> Set PE image base to <address>\n\
646 --section-alignment <num> Set PE section alignment to <num>\n\
647 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
649 --subsystem <name>[:<version>]\n\
650 Set PE subsystem to <name> [& <version>]\n\
651 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
652 Compress DWARF debug sections using zlib\n\
653 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
654 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
656 -M --merge-notes Remove redundant entries in note sections\n\
657 --no-merge-notes Do not attempt to remove redundant notes (default)\n\
658 -v --verbose List all object files modified\n\
659 @<file> Read options from <file>\n\
660 -V --version Display this program's version number\n\
661 -h --help Display this output\n\
662 --info List object formats & architectures supported\n\
664 list_supported_targets (program_name
, stream
);
665 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
666 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
670 ATTRIBUTE_NORETURN
static void
671 strip_usage (FILE *stream
, int exit_status
)
673 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
674 fprintf (stream
, _(" Removes symbols and sections from files\n"));
675 fprintf (stream
, _(" The options are:\n"));
676 fprintf (stream
, _("\
677 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
678 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
679 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
680 -p --preserve-dates Copy modified/access timestamps to the output\n\
682 if (DEFAULT_AR_DETERMINISTIC
)
683 fprintf (stream
, _("\
684 -D --enable-deterministic-archives\n\
685 Produce deterministic output when stripping archives (default)\n\
686 -U --disable-deterministic-archives\n\
687 Disable -D behavior\n"));
689 fprintf (stream
, _("\
690 -D --enable-deterministic-archives\n\
691 Produce deterministic output when stripping archives\n\
692 -U --disable-deterministic-archives\n\
693 Disable -D behavior (default)\n"));
694 fprintf (stream
, _("\
695 -R --remove-section=<name> Also remove section <name> from the output\n\
696 --remove-relocations <name> Remove relocations from section <name>\n\
697 -s --strip-all Remove all symbol and relocation information\n\
698 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
699 --strip-dwo Remove all DWO sections\n\
700 --strip-unneeded Remove all symbols not needed by relocations\n\
701 --only-keep-debug Strip everything but the debug information\n\
702 -M --merge-notes Remove redundant entries in note sections (default)\n\
703 --no-merge-notes Do not attempt to remove redundant notes\n\
704 -N --strip-symbol=<name> Do not copy symbol <name>\n\
705 -K --keep-symbol=<name> Do not strip symbol <name>\n\
706 --keep-file-symbols Do not strip file symbol(s)\n\
707 -w --wildcard Permit wildcard in symbol comparison\n\
708 -x --discard-all Remove all non-global symbols\n\
709 -X --discard-locals Remove any compiler-generated symbols\n\
710 -v --verbose List all object files modified\n\
711 -V --version Display this program's version number\n\
712 -h --help Display this output\n\
713 --info List object formats & architectures supported\n\
714 -o <file> Place stripped output into <file>\n\
717 list_supported_targets (program_name
, stream
);
718 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
719 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
723 /* Parse section flags into a flagword, with a fatal error if the
724 string can't be parsed. */
727 parse_flags (const char *s
)
737 snext
= strchr (s
, ',');
747 #define PARSE_FLAG(fname,fval) \
748 else if (strncasecmp (fname, s, len) == 0) ret |= fval
749 PARSE_FLAG ("alloc", SEC_ALLOC
);
750 PARSE_FLAG ("load", SEC_LOAD
);
751 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
752 PARSE_FLAG ("readonly", SEC_READONLY
);
753 PARSE_FLAG ("debug", SEC_DEBUGGING
);
754 PARSE_FLAG ("code", SEC_CODE
);
755 PARSE_FLAG ("data", SEC_DATA
);
756 PARSE_FLAG ("rom", SEC_ROM
);
757 PARSE_FLAG ("share", SEC_COFF_SHARED
);
758 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
759 PARSE_FLAG ("merge", SEC_MERGE
);
760 PARSE_FLAG ("strings", SEC_STRINGS
);
766 copy
= (char *) xmalloc (len
+ 1);
767 strncpy (copy
, s
, len
);
769 non_fatal (_("unrecognized section flag `%s'"), copy
);
770 fatal (_("supported flags: %s"),
771 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
781 /* Parse symbol flags into a flagword, with a fatal error if the
782 string can't be parsed. */
785 parse_symflags (const char *s
, char **other
)
795 snext
= strchr (s
, ',');
804 #define PARSE_FLAG(fname, fval) \
805 else if (len == sizeof fname - 1 \
806 && strncasecmp (fname, s, len) == 0) \
809 #define PARSE_OTHER(fname, fval) \
810 else if (len >= sizeof fname \
811 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
812 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
815 PARSE_FLAG ("local", BSF_LOCAL
);
816 PARSE_FLAG ("global", BSF_GLOBAL
);
817 PARSE_FLAG ("export", BSF_EXPORT
);
818 PARSE_FLAG ("debug", BSF_DEBUGGING
);
819 PARSE_FLAG ("function", BSF_FUNCTION
);
820 PARSE_FLAG ("weak", BSF_WEAK
);
821 PARSE_FLAG ("section", BSF_SECTION_SYM
);
822 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
823 PARSE_FLAG ("warning", BSF_WARNING
);
824 PARSE_FLAG ("indirect", BSF_INDIRECT
);
825 PARSE_FLAG ("file", BSF_FILE
);
826 PARSE_FLAG ("object", BSF_OBJECT
);
827 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
828 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
829 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
830 PARSE_OTHER ("before=", *other
);
838 copy
= (char *) xmalloc (len
+ 1);
839 strncpy (copy
, s
, len
);
841 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
842 fatal (_("supported flags: %s"),
843 "local, global, export, debug, function, weak, section, "
844 "constructor, warning, indirect, file, object, synthetic, "
845 "indirect-function, unique-object, before=<othersym>");
855 /* Find and optionally add an entry in the change_sections list.
857 We need to be careful in how we match section names because of the support
858 for wildcard characters. For example suppose that the user has invoked
861 --set-section-flags .debug_*=debug
862 --set-section-flags .debug_str=readonly,debug
863 --change-section-address .debug_*ranges=0x1000
865 With the idea that all debug sections will receive the DEBUG flag, the
866 .debug_str section will also receive the READONLY flag and the
867 .debug_ranges and .debug_aranges sections will have their address set to
868 0x1000. (This may not make much sense, but it is just an example).
870 When adding the section name patterns to the section list we need to make
871 sure that previous entries do not match with the new entry, unless the
872 match is exact. (In which case we assume that the user is overriding
873 the previous entry with the new context).
875 When matching real section names to the section list we make use of the
876 wildcard characters, but we must do so in context. Eg if we are setting
877 section addresses then we match for .debug_ranges but not for .debug_info.
879 Finally, if ADD is false and we do find a match, we mark the section list
882 static struct section_list
*
883 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
885 struct section_list
*p
, *match
= NULL
;
887 /* assert ((context & ((1 << 7) - 1)) != 0); */
889 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
893 if (strcmp (p
->pattern
, name
) == 0)
895 /* Check for context conflicts. */
896 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
897 && (context
& SECTION_CONTEXT_COPY
))
898 || ((context
& SECTION_CONTEXT_REMOVE
)
899 && (p
->context
& SECTION_CONTEXT_COPY
)))
900 fatal (_("error: %s both copied and removed"), name
);
902 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
903 && (context
& SECTION_CONTEXT_ALTER_VMA
))
904 || ((context
& SECTION_CONTEXT_SET_VMA
)
905 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
906 fatal (_("error: %s both sets and alters VMA"), name
);
908 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
909 && (context
& SECTION_CONTEXT_ALTER_LMA
))
910 || ((context
& SECTION_CONTEXT_SET_LMA
)
911 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
912 fatal (_("error: %s both sets and alters LMA"), name
);
914 /* Extend the context. */
915 p
->context
|= context
;
919 /* If we are not adding a new name/pattern then
920 only check for a match if the context applies. */
921 else if (p
->context
& context
)
923 /* We could check for the presence of wildchar characters
924 first and choose between calling strcmp and fnmatch,
925 but is that really worth it ? */
926 if (p
->pattern
[0] == '!')
928 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
936 if (fnmatch (p
->pattern
, name
, 0) == 0)
952 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
955 p
->context
= context
;
959 p
->next
= change_sections
;
965 /* S1 is the entry node already in the table, S2 is the key node. */
968 eq_string_redefnode (const void *s1
, const void *s2
)
970 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
971 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
972 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
975 /* P is redefine node. Hash value is generated from its "source" filed. */
978 htab_hash_redefnode (const void *p
)
980 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
981 return htab_hash_string (redefnode
->source
);
984 /* Create hashtab used for redefine node. */
987 create_symbol2redef_htab (void)
989 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
993 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
996 eq_string (const void *s1
, const void *s2
)
998 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
1002 create_symbol_htab (void)
1004 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
1008 create_symbol_htabs (void)
1010 strip_specific_htab
= create_symbol_htab ();
1011 strip_unneeded_htab
= create_symbol_htab ();
1012 keep_specific_htab
= create_symbol_htab ();
1013 localize_specific_htab
= create_symbol_htab ();
1014 globalize_specific_htab
= create_symbol_htab ();
1015 keepglobal_specific_htab
= create_symbol_htab ();
1016 weaken_specific_htab
= create_symbol_htab ();
1017 redefine_specific_htab
= create_symbol2redef_htab ();
1018 /* As there is no bidirectional hash table in libiberty, need a reverse table
1019 to check duplicated target string. */
1020 redefine_specific_reverse_htab
= create_symbol_htab ();
1023 /* Add a symbol to strip_specific_list. */
1026 add_specific_symbol (const char *name
, htab_t htab
)
1028 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1031 /* Like add_specific_symbol, but the element type is void *. */
1034 add_specific_symbol_node (const void *node
, htab_t htab
)
1036 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1039 /* Add symbols listed in `filename' to strip_specific_list. */
1041 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1042 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1045 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1051 unsigned int line_count
;
1053 size
= get_file_size (filename
);
1060 buffer
= (char *) xmalloc (size
+ 2);
1061 f
= fopen (filename
, FOPEN_RT
);
1063 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1065 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1066 fatal (_("%s: fread failed"), filename
);
1069 buffer
[size
] = '\n';
1070 buffer
[size
+ 1] = '\0';
1074 for (line
= buffer
; * line
!= '\0'; line
++)
1079 int finished
= FALSE
;
1081 for (eol
= line
;; eol
++)
1087 /* Cope with \n\r. */
1095 /* Cope with \r\n. */
1106 /* Line comment, Terminate the line here, in case a
1107 name is present and then allow the rest of the
1108 loop to find the real end of the line. */
1120 /* A name may now exist somewhere between 'line' and 'eol'.
1121 Strip off leading whitespace and trailing whitespace,
1122 then add it to the list. */
1123 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1125 for (name_end
= name
;
1126 (! IS_WHITESPACE (* name_end
))
1127 && (! IS_LINE_TERMINATOR (* name_end
));
1131 if (! IS_LINE_TERMINATOR (* name_end
))
1135 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1138 if (! IS_LINE_TERMINATOR (* extra
))
1139 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1140 filename
, line_count
);
1145 if (name_end
> name
)
1146 add_specific_symbol (name
, htab
);
1148 /* Advance line pointer to end of line. The 'eol ++' in the for
1149 loop above will then advance us to the start of the next line. */
1154 /* Do not free the buffer. Parts of it will have been referenced
1155 in the calls to add_specific_symbol. */
1159 /* See whether a symbol should be stripped or kept
1160 based on strip_specific_list and keep_symbols. */
1163 is_specified_symbol_predicate (void **slot
, void *data
)
1165 struct is_specified_symbol_predicate_data
*d
=
1166 (struct is_specified_symbol_predicate_data
*) data
;
1167 const char *slot_name
= (char *) *slot
;
1169 if (*slot_name
!= '!')
1171 if (! fnmatch (slot_name
, d
->name
, 0))
1174 /* Continue traversal, there might be a non-match rule. */
1180 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1183 /* Stop traversal. */
1188 /* Continue traversal. */
1193 is_specified_symbol (const char *name
, htab_t htab
)
1197 struct is_specified_symbol_predicate_data data
;
1202 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1207 return htab_find (htab
, name
) != NULL
;
1210 /* Return a pointer to the symbol used as a signature for GROUP. */
1213 group_signature (asection
*group
)
1215 bfd
*abfd
= group
->owner
;
1216 Elf_Internal_Shdr
*ghdr
;
1218 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1222 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1225 ghdr
= &elf_section_data (group
)->this_hdr
;
1226 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1228 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1229 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1231 if (ghdr
->sh_info
> 0
1232 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1233 return isympp
[ghdr
->sh_info
- 1];
1238 /* Return TRUE if the section is a DWO section. */
1241 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1243 const char *name
= bfd_get_section_name (abfd
, sec
);
1244 int len
= strlen (name
);
1246 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1249 /* Return TRUE if section SEC is in the update list. */
1252 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1254 if (update_sections
!= NULL
)
1256 struct section_add
*pupdate
;
1258 for (pupdate
= update_sections
;
1260 pupdate
= pupdate
->next
)
1262 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1271 is_merged_note_section (bfd
* abfd
, asection
* sec
)
1274 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1275 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1276 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1277 We should add support for more note types. */
1278 && ((elf_section_data (sec
)->this_hdr
.sh_flags
& SHF_GNU_BUILD_NOTE
) != 0
1279 /* Old versions of GAS (prior to 2.27) could not set the section
1280 flags to OS-specific values, so we also accept sections with the
1282 || (strcmp (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
) == 0)))
1288 /* See if a non-group section is being removed. */
1291 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1293 if (sections_removed
|| sections_copied
)
1295 struct section_list
*p
;
1296 struct section_list
*q
;
1298 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1299 SECTION_CONTEXT_REMOVE
);
1300 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1301 SECTION_CONTEXT_COPY
);
1304 fatal (_("error: section %s matches both remove and copy options"),
1305 bfd_get_section_name (abfd
, sec
));
1306 if (p
&& is_update_section (abfd
, sec
))
1307 fatal (_("error: section %s matches both update and remove options"),
1308 bfd_get_section_name (abfd
, sec
));
1312 if (sections_copied
&& q
== NULL
)
1316 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1318 if (strip_symbols
== STRIP_DEBUG
1319 || strip_symbols
== STRIP_UNNEEDED
1320 || strip_symbols
== STRIP_ALL
1321 || discard_locals
== LOCALS_ALL
1322 || convert_debugging
)
1324 /* By default we don't want to strip .reloc section.
1325 This section has for pe-coff special meaning. See
1326 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1327 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1331 if (strip_symbols
== STRIP_DWO
)
1332 return is_dwo_section (abfd
, sec
);
1334 if (strip_symbols
== STRIP_NONDEBUG
)
1338 if (strip_symbols
== STRIP_NONDWO
)
1339 return !is_dwo_section (abfd
, sec
);
1344 /* See if a section is being removed. */
1347 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1349 if (is_strip_section_1 (abfd
, sec
))
1352 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1356 asection
*elt
, *first
;
1358 gsym
= group_signature (sec
);
1359 /* Strip groups without a valid signature. */
1364 If we are going to strip the group signature symbol, then
1365 strip the group section too. */
1367 if ((strip_symbols
== STRIP_ALL
1368 && !is_specified_symbol (gname
, keep_specific_htab
))
1369 || is_specified_symbol (gname
, strip_specific_htab
))
1372 /* Remove the group section if all members are removed. */
1373 first
= elt
= elf_next_in_group (sec
);
1376 if (!is_strip_section_1 (abfd
, elt
))
1378 elt
= elf_next_in_group (elt
);
1390 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1392 /* Always keep ELF note sections. */
1393 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1394 return (elf_section_type (isection
) == SHT_NOTE
);
1396 /* Always keep the .buildid section for PE/COFF.
1398 Strictly, this should be written "always keep the section storing the debug
1399 directory", but that may be the .text section for objects produced by some
1400 tools, which it is not sensible to keep. */
1401 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1402 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1407 /* Return true if SYM is a hidden symbol. */
1410 is_hidden_symbol (asymbol
*sym
)
1412 elf_symbol_type
*elf_sym
;
1414 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1415 if (elf_sym
!= NULL
)
1416 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1426 need_sym_before (struct addsym_node
**node
, const char *sym
)
1429 struct addsym_node
*ptr
= add_sym_list
;
1431 /* 'othersym' symbols are at the front of the list. */
1432 for (count
= 0; count
< add_symbols
; count
++)
1436 else if (strcmp (ptr
->othersym
, sym
) == 0)
1438 free (ptr
->othersym
);
1439 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1449 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1451 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1453 bfd_asymbol_name (sym
) = ptr
->symdef
;
1454 sym
->value
= ptr
->symval
;
1455 sym
->flags
= ptr
->flags
;
1458 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1460 fatal (_("Section %s not found"), ptr
->section
);
1464 sym
->section
= bfd_abs_section_ptr
;
1468 /* Choose which symbol entries to copy; put the result in OSYMS.
1469 We don't copy in place, because that confuses the relocs.
1470 Return the number of symbols to print. */
1473 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1474 asymbol
**isyms
, long symcount
)
1476 asymbol
**from
= isyms
, **to
= osyms
;
1477 long src_count
= 0, dst_count
= 0;
1478 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1480 for (; src_count
< symcount
; src_count
++)
1482 asymbol
*sym
= from
[src_count
];
1483 flagword flags
= sym
->flags
;
1484 char *name
= (char *) bfd_asymbol_name (sym
);
1486 bfd_boolean used_in_reloc
= FALSE
;
1487 bfd_boolean undefined
;
1488 bfd_boolean rem_leading_char
;
1489 bfd_boolean add_leading_char
;
1491 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1495 struct addsym_node
*ptr
;
1497 if (need_sym_before (&ptr
, name
))
1498 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1501 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1505 new_name
= (char *) lookup_sym_redefinition (name
);
1506 if (new_name
== name
1507 && (flags
& BSF_SECTION_SYM
) != 0)
1508 new_name
= (char *) find_section_rename (name
, NULL
);
1509 bfd_asymbol_name (sym
) = new_name
;
1513 /* Check if we will remove the current leading character. */
1515 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1516 && (change_leading_char
1517 || (remove_leading_char
1518 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1520 || bfd_is_com_section (bfd_get_section (sym
)))));
1522 /* Check if we will add a new leading character. */
1525 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1526 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1527 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1529 /* Short circuit for change_leading_char if we can do it in-place. */
1530 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1532 name
[0] = bfd_get_symbol_leading_char (obfd
);
1533 bfd_asymbol_name (sym
) = name
;
1534 rem_leading_char
= FALSE
;
1535 add_leading_char
= FALSE
;
1538 /* Remove leading char. */
1539 if (rem_leading_char
)
1540 bfd_asymbol_name (sym
) = ++name
;
1542 /* Add new leading char and/or prefix. */
1543 if (add_leading_char
|| prefix_symbols_string
)
1547 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1548 + strlen (name
) + 1);
1549 if (add_leading_char
)
1550 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1552 if (prefix_symbols_string
)
1554 strcpy (ptr
, prefix_symbols_string
);
1555 ptr
+= strlen (prefix_symbols_string
);
1559 bfd_asymbol_name (sym
) = n
;
1563 if (strip_symbols
== STRIP_ALL
)
1565 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1566 || ((flags
& BSF_SECTION_SYM
) != 0
1567 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1571 used_in_reloc
= TRUE
;
1573 else if (relocatable
/* Relocatable file. */
1574 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1575 || bfd_is_com_section (bfd_get_section (sym
))))
1577 else if (bfd_decode_symclass (sym
) == 'I')
1578 /* Global symbols in $idata sections need to be retained
1579 even if relocatable is FALSE. External users of the
1580 library containing the $idata section may reference these
1583 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1584 || (flags
& BSF_WEAK
) != 0
1586 || bfd_is_com_section (bfd_get_section (sym
)))
1587 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1588 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1589 keep
= (strip_symbols
!= STRIP_DEBUG
1590 && strip_symbols
!= STRIP_UNNEEDED
1591 && ! convert_debugging
);
1592 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1593 /* COMDAT sections store special information in local
1594 symbols, so we cannot risk stripping any of them. */
1596 else /* Local symbol. */
1597 keep
= (strip_symbols
!= STRIP_UNNEEDED
1598 && (discard_locals
!= LOCALS_ALL
1599 && (discard_locals
!= LOCALS_START_L
1600 || ! bfd_is_local_label (abfd
, sym
))));
1602 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1604 /* There are multiple ways to set 'keep' above, but if it
1605 was the relocatable symbol case, then that's an error. */
1608 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1616 && !(flags
& BSF_KEEP
)
1617 && is_specified_symbol (name
, strip_unneeded_htab
))
1621 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1622 || is_specified_symbol (name
, keep_specific_htab
)))
1625 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1630 if ((flags
& BSF_GLOBAL
) != 0
1631 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1633 sym
->flags
&= ~ BSF_GLOBAL
;
1634 sym
->flags
|= BSF_WEAK
;
1638 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1639 && (is_specified_symbol (name
, localize_specific_htab
)
1640 || (htab_elements (keepglobal_specific_htab
) != 0
1641 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1642 || (localize_hidden
&& is_hidden_symbol (sym
))))
1644 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1645 sym
->flags
|= BSF_LOCAL
;
1649 && (flags
& BSF_LOCAL
)
1650 && is_specified_symbol (name
, globalize_specific_htab
))
1652 sym
->flags
&= ~ BSF_LOCAL
;
1653 sym
->flags
|= BSF_GLOBAL
;
1656 to
[dst_count
++] = sym
;
1661 struct addsym_node
*ptr
= add_sym_list
;
1663 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1667 if (strcmp (ptr
->othersym
, ""))
1668 fatal (_("'before=%s' not found"), ptr
->othersym
);
1671 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1677 to
[dst_count
] = NULL
;
1682 /* Find the redefined name of symbol SOURCE. */
1685 lookup_sym_redefinition (const char *source
)
1687 struct redefine_node key_node
= {(char *) source
, NULL
};
1688 struct redefine_node
*redef_node
1689 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1691 return redef_node
== NULL
? source
: redef_node
->target
;
1694 /* Insert a node into symbol redefine hash tabel. */
1697 add_redefine_and_check (const char *cause
, const char *source
,
1700 struct redefine_node
*new_node
1701 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1703 new_node
->source
= strdup (source
);
1704 new_node
->target
= strdup (target
);
1706 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1707 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1710 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1711 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1714 /* Insert the NEW_NODE into hash table for quick search. */
1715 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1717 /* Insert the target string into the reverse hash table, this is needed for
1718 duplicated target string check. */
1719 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1723 /* Handle the --redefine-syms option. Read lines containing "old new"
1724 from the file, and add them to the symbol redefine list. */
1727 add_redefine_syms_file (const char *filename
)
1736 file
= fopen (filename
, "r");
1738 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1739 filename
, strerror (errno
));
1742 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1750 /* Collect the input symbol name. */
1751 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1759 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1767 /* Eat white space between the symbol names. */
1768 while (IS_WHITESPACE (c
))
1770 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1775 /* Collect the output symbol name. */
1777 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1785 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1793 /* Eat white space at end of line. */
1794 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1799 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1800 || c
== '\n' || c
== EOF
)
1803 /* Append the redefinition to the list. */
1805 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1816 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1818 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1819 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1822 /* Eat the rest of the line and finish it. */
1823 while (c
!= '\n' && c
!= EOF
)
1829 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1835 /* Copy unknown object file IBFD onto OBFD.
1836 Returns TRUE upon success, FALSE otherwise. */
1839 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1847 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1849 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1856 non_fatal (_("stat returns negative size for `%s'"),
1857 bfd_get_archive_filename (ibfd
));
1861 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1863 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1868 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1869 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1871 cbuf
= (char *) xmalloc (BUFSIZE
);
1873 while (ncopied
< size
)
1875 tocopy
= size
- ncopied
;
1876 if (tocopy
> BUFSIZE
)
1879 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1880 != (bfd_size_type
) tocopy
)
1882 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1887 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1888 != (bfd_size_type
) tocopy
)
1890 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1898 /* We should at least to be able to read it back when copying an
1899 unknown object in an archive. */
1900 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1905 /* Returns the number of bytes needed to store VAL. */
1907 static inline unsigned int
1908 num_bytes (unsigned long val
)
1910 unsigned int count
= 0;
1912 /* FIXME: There must be a faster way to do this. */
1921 typedef struct objcopy_internal_note
1923 Elf_Internal_Note note
;
1926 bfd_boolean modified
;
1927 } objcopy_internal_note
;
1929 /* Returns TRUE if a gap does, or could, exist between the address range
1930 covered by PNOTE1 and PNOTE2. */
1933 gap_exists (objcopy_internal_note
* pnote1
,
1934 objcopy_internal_note
* pnote2
)
1936 /* Without range end notes, we assume that a gap might exist. */
1937 if (pnote1
->end
== 0 || pnote2
->end
== 0)
1940 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1941 Really we should extract the alignment of the section covered by the notes. */
1942 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1946 is_open_note (objcopy_internal_note
* pnote
)
1948 return (pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
);
1952 is_func_note (objcopy_internal_note
* pnote
)
1954 return (pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
);
1958 is_64bit (bfd
* abfd
)
1960 /* Should never happen, but let's be paranoid. */
1961 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1964 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
1967 /* Merge the notes on SEC, removing redundant entries.
1968 Returns the new, smaller size of the section upon success. */
1970 static bfd_size_type
1971 merge_gnu_build_notes (bfd
* abfd
, asection
* sec
, bfd_size_type size
, bfd_byte
* contents
)
1973 objcopy_internal_note
* pnotes_end
;
1974 objcopy_internal_note
* pnotes
= NULL
;
1975 objcopy_internal_note
* pnote
;
1976 bfd_size_type remain
= size
;
1977 unsigned version_1_seen
= 0;
1978 unsigned version_2_seen
= 0;
1979 unsigned version_3_seen
= 0;
1980 bfd_boolean duplicate_found
= FALSE
;
1981 const char * err
= NULL
;
1982 bfd_byte
* in
= contents
;
1983 int attribute_type_byte
;
1985 unsigned long previous_func_start
= 0;
1986 unsigned long previous_open_start
= 0;
1987 unsigned long previous_func_end
= 0;
1988 unsigned long previous_open_end
= 0;
1992 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
1998 /* If there are relocs associated with this section then we
1999 cannot safely merge it. */
2000 relpp
= (arelent
**) xmalloc (relsize
);
2001 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2007 /* Make a copy of the notes and convert to our internal format.
2008 Minimum size of a note is 12 bytes. */
2009 pnote
= pnotes
= (objcopy_internal_note
*) xcalloc ((size
/ 12), sizeof (* pnote
));
2010 while (remain
>= 12)
2014 pnote
->note
.namesz
= (bfd_get_32 (abfd
, in
) + 3) & ~3;
2015 pnote
->note
.descsz
= (bfd_get_32 (abfd
, in
+ 4) + 3) & ~3;
2016 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2018 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2019 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2021 err
= _("corrupt GNU build attribute note: wrong note type");
2025 if (pnote
->note
.namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2027 err
= _("corrupt GNU build attribute note: note too big");
2031 if (pnote
->note
.namesz
< 2)
2033 err
= _("corrupt GNU build attribute note: name too small");
2037 pnote
->note
.namedata
= (char *)(in
+ 12);
2038 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->note
.namesz
);
2040 remain
-= 12 + pnote
->note
.namesz
+ pnote
->note
.descsz
;
2041 in
+= 12 + pnote
->note
.namesz
+ pnote
->note
.descsz
;
2043 if (pnote
->note
.namesz
> 2
2044 && pnote
->note
.namedata
[0] == '$'
2045 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2046 && pnote
->note
.namedata
[2] == '1')
2048 else if (pnote
->note
.namesz
> 4
2049 && pnote
->note
.namedata
[0] == 'G'
2050 && pnote
->note
.namedata
[1] == 'A'
2051 && pnote
->note
.namedata
[2] == '$'
2052 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
)
2054 if (pnote
->note
.namedata
[4] == '2')
2056 else if (pnote
->note
.namedata
[4] == '3')
2060 err
= _("corrupt GNU build attribute note: unsupported version");
2065 switch (pnote
->note
.descsz
)
2072 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2073 /* FIXME: For version 1 and 2 notes we should try to
2074 calculate the end address by finding a symbol whose
2075 value is START, and then adding in its size.
2077 For now though, since v1 and v2 was not intended to
2078 handle gaps, we chose an artificially large end
2084 if (! is_64bit (abfd
))
2086 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2087 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2091 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2092 /* FIXME: For version 1 and 2 notes we should try to
2093 calculate the end address by finding a symbol whose
2094 value is START, and then adding in its size.
2096 For now though, since v1 and v2 was not intended to
2097 handle gaps, we chose an artificially large end
2104 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2105 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2109 err
= _("corrupt GNU build attribute note: bad description size");
2113 if (is_open_note (pnote
))
2116 previous_open_start
= start
;
2118 pnote
->start
= previous_open_start
;
2121 previous_open_end
= end
;
2123 pnote
->end
= previous_open_end
;
2128 previous_func_start
= start
;
2130 pnote
->start
= previous_func_start
;
2133 previous_func_end
= end
;
2135 pnote
->end
= previous_func_end
;
2138 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2140 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2149 /* Check that the notes are valid. */
2152 err
= _("corrupt GNU build attribute notes: excess data at end");
2156 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2158 err
= _("bad GNU build attribute notes: no known versions detected");
2162 if ((version_1_seen
> 0 && version_2_seen
> 0)
2163 || (version_1_seen
> 0 && version_3_seen
> 0)
2164 || (version_2_seen
> 0 && version_3_seen
> 0))
2166 err
= _("bad GNU build attribute notes: multiple different versions");
2170 /* Merging is only needed if there is more than one version note... */
2171 if (version_1_seen
== 1 || version_2_seen
== 1 || version_3_seen
== 1)
2174 attribute_type_byte
= version_1_seen
? 1 : 3;
2175 val_start
= attribute_type_byte
+ 1;
2177 /* The first note should be the first version note. */
2178 if (pnotes
[0].note
.namedata
[attribute_type_byte
] != GNU_BUILD_ATTRIBUTE_VERSION
)
2180 err
= _("bad GNU build attribute notes: first note not version note");
2184 /* Now merge the notes. The rules are:
2185 1. Preserve the ordering of the notes.
2186 2. Preserve any NT_GNU_BUILD_ATTRIBUTE_FUNC notes.
2187 3. Eliminate any NT_GNU_BUILD_ATTRIBUTE_OPEN notes that have the same
2188 full name field as the immediately preceeding note with the same type
2189 of name and whose address ranges coincide.
2190 IE - if there are gaps in the coverage of the notes, then these gaps
2192 4. Combine the numeric value of any NT_GNU_BUILD_ATTRIBUTE_OPEN notes
2193 of type GNU_BUILD_ATTRIBUTE_STACK_SIZE.
2194 5. If an NT_GNU_BUILD_ATTRIBUTE_OPEN note is going to be preserved and
2195 its description field is empty then the nearest preceeding OPEN note
2196 with a non-empty description field must also be preserved *OR* the
2197 description field of the note must be changed to contain the starting
2198 address to which it refers.
2199 6. Notes with the same start and end address can be deleted. */
2200 for (pnote
= pnotes
+ 1; pnote
< pnotes_end
; pnote
++)
2203 objcopy_internal_note
* back
;
2204 objcopy_internal_note
* prev_open_with_range
= NULL
;
2206 /* Rule 6 - delete 0-range notes. */
2207 if (pnote
->start
== pnote
->end
)
2209 duplicate_found
= TRUE
;
2210 pnote
->note
.type
= 0;
2214 /* Rule 2 - preserve function notes. */
2215 if (! is_open_note (pnote
))
2219 /* Check to see if there is an identical previous function note.
2220 This can happen with overlays for example. */
2221 for (iter
= 0, back
= pnote
-1; back
>= pnotes
; back
--)
2223 if (back
->start
== pnote
->start
2224 && back
->end
== pnote
->end
2225 && back
->note
.namesz
== pnote
->note
.namesz
2226 && memcmp (back
->note
.namedata
, pnote
->note
.namedata
, pnote
->note
.namesz
) == 0)
2228 fprintf (stderr
, "DUP FUNXC\n");
2229 duplicate_found
= TRUE
;
2230 pnote
->note
.type
= 0;
2234 /* Don't scan too far back however. */
2241 note_type
= pnote
->note
.namedata
[attribute_type_byte
];
2243 /* Scan backwards from pnote, looking for duplicates.
2244 Clear the type field of any found - but do not delete them just yet. */
2245 for (back
= pnote
- 1; back
>= pnotes
; back
--)
2247 int back_type
= back
->note
.namedata
[attribute_type_byte
];
2249 /* If this is the first open note with an address
2250 range that we have encountered then record it. */
2251 if (prev_open_with_range
== NULL
2252 && back
->note
.descsz
> 0
2253 && ! is_func_note (back
))
2254 prev_open_with_range
= back
;
2256 if (! is_open_note (back
))
2259 /* If the two notes are different then keep on searching. */
2260 if (back_type
!= note_type
)
2263 /* Rule 4 - combine stack size notes. */
2264 if (back_type
== GNU_BUILD_ATTRIBUTE_STACK_SIZE
)
2266 unsigned char * name
;
2267 unsigned long note_val
;
2268 unsigned long back_val
;
2273 for (shift
= 0, note_val
= 0,
2274 bytes
= pnote
->note
.namesz
- val_start
,
2275 name
= (unsigned char *) pnote
->note
.namedata
+ val_start
;
2278 byte
= (* name
++) & 0xff;
2279 note_val
|= byte
<< shift
;
2283 for (shift
= 0, back_val
= 0,
2284 bytes
= back
->note
.namesz
- val_start
,
2285 name
= (unsigned char *) back
->note
.namedata
+ val_start
;
2288 byte
= (* name
++) & 0xff;
2289 back_val
|= byte
<< shift
;
2293 back_val
+= note_val
;
2294 if (num_bytes (back_val
) >= back
->note
.namesz
- val_start
)
2296 /* We have a problem - the new value requires more bytes of
2297 storage in the name field than are available. Currently
2298 we have no way of fixing this, so we just preserve both
2303 /* Write the new val into back. */
2304 name
= (unsigned char *) back
->note
.namedata
+ val_start
;
2305 while (name
< (unsigned char *) back
->note
.namedata
2306 + back
->note
.namesz
)
2308 byte
= back_val
& 0xff;
2315 duplicate_found
= TRUE
;
2316 pnote
->note
.type
= 0;
2320 /* Rule 3 - combine identical open notes. */
2321 if (back
->note
.namesz
== pnote
->note
.namesz
2322 && memcmp (back
->note
.namedata
,
2323 pnote
->note
.namedata
, back
->note
.namesz
) == 0
2324 && ! gap_exists (back
, pnote
))
2326 duplicate_found
= TRUE
;
2327 pnote
->note
.type
= 0;
2329 if (pnote
->end
> back
->end
)
2330 back
->end
= pnote
->end
;
2333 back
->modified
= TRUE
;
2337 /* Rule 5 - Since we are keeping this note we must check to see
2338 if its description refers back to an earlier OPEN version
2339 note that has been scheduled for deletion. If so then we
2340 must make sure that version note is also preserved. */
2343 /* As of version 3 we can just
2344 move the range into the note. */
2345 pnote
->modified
= TRUE
;
2346 pnote
->note
.type
= NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2347 back
->modified
= TRUE
;
2348 back
->note
.type
= NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2352 if (pnote
->note
.descsz
== 0
2353 && prev_open_with_range
!= NULL
2354 && prev_open_with_range
->note
.type
== 0)
2355 prev_open_with_range
->note
.type
= NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2358 /* We have found a similar attribute but the details do not match.
2359 Stop searching backwards. */
2364 if (duplicate_found
)
2366 bfd_byte
* new_contents
;
2369 bfd_size_type new_size
;
2370 bfd_vma prev_start
= 0;
2371 bfd_vma prev_end
= 0;
2373 /* Eliminate the duplicates. */
2374 new = new_contents
= xmalloc (size
);
2375 for (pnote
= pnotes
, old
= contents
;
2379 bfd_size_type note_size
= 12 + pnote
->note
.namesz
+ pnote
->note
.descsz
;
2381 if (pnote
->note
.type
!= 0)
2383 if (pnote
->modified
)
2385 /* If the note has been modified then we must copy it by
2386 hand, potentially adding in a new description field. */
2387 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2389 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2390 bfd_put_32 (abfd
, 0, new + 4);
2391 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2393 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2394 new += pnote
->note
.namesz
;
2398 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2399 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2400 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2402 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2403 new += pnote
->note
.namesz
;
2404 if (is_64bit (abfd
))
2406 bfd_put_64 (abfd
, pnote
->start
, new);
2407 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2412 bfd_put_32 (abfd
, pnote
->start
, new);
2413 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2420 memcpy (new, old
, note_size
);
2423 prev_start
= pnote
->start
;
2424 prev_end
= pnote
->end
;
2430 new_size
= new - new_contents
;
2431 memcpy (contents
, new_contents
, new_size
);
2433 free (new_contents
);
2439 bfd_set_error (bfd_error_bad_value
);
2440 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2448 /* Copy object file IBFD onto OBFD.
2449 Returns TRUE upon success, FALSE otherwise. */
2452 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2456 asection
**osections
= NULL
;
2458 asection
*gnu_debuglink_section
= NULL
;
2459 bfd_size_type
*gaps
= NULL
;
2460 bfd_size_type max_gap
= 0;
2463 enum bfd_architecture iarch
;
2467 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2468 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2469 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2471 /* PR 17636: Call non-fatal so that we return to our parent who
2472 may need to tidy temporary files. */
2473 non_fatal (_("Unable to change endianness of input file(s)"));
2477 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2479 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2483 if (ibfd
->sections
== NULL
)
2485 non_fatal (_("error: the input file '%s' has no sections"),
2486 bfd_get_archive_filename (ibfd
));
2490 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
2492 if ((do_debug_sections
& compress
) != 0
2493 && do_debug_sections
!= compress
)
2495 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2496 bfd_get_archive_filename (ibfd
));
2500 if (do_elf_stt_common
)
2502 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2503 bfd_get_archive_filename (ibfd
));
2509 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2510 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2511 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2520 start
= bfd_get_start_address (ibfd
);
2521 start
+= change_start
;
2524 /* Neither the start address nor the flags
2525 need to be set for a core file. */
2526 if (bfd_get_format (obfd
) != bfd_core
)
2530 flags
= bfd_get_file_flags (ibfd
);
2531 flags
|= bfd_flags_to_set
;
2532 flags
&= ~bfd_flags_to_clear
;
2533 flags
&= bfd_applicable_file_flags (obfd
);
2535 if (strip_symbols
== STRIP_ALL
)
2536 flags
&= ~HAS_RELOC
;
2538 if (!bfd_set_start_address (obfd
, start
)
2539 || !bfd_set_file_flags (obfd
, flags
))
2541 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2546 /* Copy architecture of input file to output file. */
2547 iarch
= bfd_get_arch (ibfd
);
2548 imach
= bfd_get_mach (ibfd
);
2551 if (bfd_get_arch_info (ibfd
) == NULL
2552 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
2554 iarch
= input_arch
->arch
;
2555 imach
= input_arch
->mach
;
2558 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2559 bfd_get_archive_filename (ibfd
));
2561 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2562 && (ibfd
->target_defaulted
2563 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2565 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2566 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2567 bfd_get_archive_filename (ibfd
));
2569 non_fatal (_("Output file cannot represent architecture `%s'"),
2570 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2571 bfd_get_mach (ibfd
)));
2575 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2577 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2581 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2582 && bfd_pei_p (obfd
))
2584 /* Set up PE parameters. */
2585 pe_data_type
*pe
= pe_data (obfd
);
2587 /* Copy PE parameters before changing them. */
2588 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
2589 && bfd_pei_p (ibfd
))
2590 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2592 if (pe_file_alignment
!= (bfd_vma
) -1)
2593 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2595 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2597 if (pe_heap_commit
!= (bfd_vma
) -1)
2598 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2600 if (pe_heap_reserve
!= (bfd_vma
) -1)
2601 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2603 if (pe_image_base
!= (bfd_vma
) -1)
2604 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2606 if (pe_section_alignment
!= (bfd_vma
) -1)
2607 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2609 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2611 if (pe_stack_commit
!= (bfd_vma
) -1)
2612 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2614 if (pe_stack_reserve
!= (bfd_vma
) -1)
2615 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2617 if (pe_subsystem
!= -1)
2618 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2620 if (pe_major_subsystem_version
!= -1)
2621 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2623 if (pe_minor_subsystem_version
!= -1)
2624 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2626 if (pe_file_alignment
> pe_section_alignment
)
2628 char file_alignment
[20], section_alignment
[20];
2630 sprintf_vma (file_alignment
, pe_file_alignment
);
2631 sprintf_vma (section_alignment
, pe_section_alignment
);
2632 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2634 file_alignment
, section_alignment
);
2641 if (osympp
!= isympp
)
2647 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2650 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2654 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2655 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2658 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2661 /* PR 17512: file: d6323821
2662 If the symbol table could not be loaded do not pretend that we have
2663 any symbols. This trips us up later on when we load the relocs. */
2667 osympp
= isympp
= NULL
;
2670 /* BFD mandates that all output sections be created and sizes set before
2671 any output is done. Thus, we traverse all sections multiple times. */
2672 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2674 if (!extract_symbol
)
2675 setup_bfd_headers (ibfd
, obfd
);
2677 if (add_sections
!= NULL
)
2679 struct section_add
*padd
;
2680 struct section_list
*pset
;
2682 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2686 pset
= find_section_list (padd
->name
, FALSE
,
2687 SECTION_CONTEXT_SET_FLAGS
);
2689 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2691 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2693 /* bfd_make_section_with_flags() does not return very helpful
2694 error codes, so check for the most likely user error first. */
2695 if (bfd_get_section_by_name (obfd
, padd
->name
))
2697 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2698 _("can't add section '%s'"), padd
->name
);
2703 /* We use LINKER_CREATED here so that the backend hooks
2704 will create any special section type information,
2705 instead of presuming we know what we're doing merely
2706 because we set the flags. */
2707 padd
->section
= bfd_make_section_with_flags
2708 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2709 if (padd
->section
== NULL
)
2711 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2712 _("can't create section `%s'"),
2718 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2720 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2724 pset
= find_section_list (padd
->name
, FALSE
,
2725 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2727 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2729 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2733 pset
= find_section_list (padd
->name
, FALSE
,
2734 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2737 padd
->section
->lma
= pset
->lma_val
;
2739 if (! bfd_set_section_alignment
2740 (obfd
, padd
->section
,
2741 bfd_section_alignment (obfd
, padd
->section
)))
2743 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2750 if (update_sections
!= NULL
)
2752 struct section_add
*pupdate
;
2754 for (pupdate
= update_sections
;
2756 pupdate
= pupdate
->next
)
2758 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2759 if (pupdate
->section
== NULL
)
2761 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2765 osec
= pupdate
->section
->output_section
;
2766 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2768 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2776 /* This palaver is necessary because we must set the output
2777 section size first, before its contents are ready. */
2778 osec
= bfd_get_section_by_name (ibfd
, GNU_BUILD_ATTRS_SECTION_NAME
);
2779 if (osec
&& is_merged_note_section (ibfd
, osec
))
2783 size
= bfd_get_section_size (osec
);
2786 bfd_nonfatal_message (NULL
, ibfd
, osec
, _("warning: note section is empty"));
2787 merge_notes
= FALSE
;
2789 else if (! bfd_get_full_section_contents (ibfd
, osec
, & merged_notes
))
2791 bfd_nonfatal_message (NULL
, ibfd
, osec
, _("warning: could not load note section"));
2792 free (merged_notes
);
2793 merged_notes
= NULL
;
2794 merge_notes
= FALSE
;
2798 merged_size
= merge_gnu_build_notes (ibfd
, osec
, size
, merged_notes
);
2799 if (merged_size
== size
)
2801 /* Merging achieves nothing. */
2802 free (merged_notes
);
2803 merged_notes
= NULL
;
2804 merge_notes
= FALSE
;
2809 if (osec
->output_section
== NULL
2810 || ! bfd_set_section_size (obfd
, osec
->output_section
, merged_size
))
2812 bfd_nonfatal_message (NULL
, obfd
, osec
, _("warning: failed to set merged notes size"));
2813 free (merged_notes
);
2814 merged_notes
= NULL
;
2815 merge_notes
= FALSE
;
2823 if (dump_sections
!= NULL
)
2825 struct section_add
* pdump
;
2827 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2829 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2832 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2833 _("can't dump section '%s' - it does not exist"),
2838 if ((bfd_get_section_flags (ibfd
, osec
) & SEC_HAS_CONTENTS
) == 0)
2840 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2841 _("can't dump section - it has no contents"));
2845 bfd_size_type size
= bfd_get_section_size (osec
);
2848 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2849 _("can't dump section - it is empty"));
2854 f
= fopen (pdump
->filename
, FOPEN_WB
);
2857 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2858 _("could not open section dump file"));
2863 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
2865 if (fwrite (contents
, 1, size
, f
) != size
)
2867 non_fatal (_("error writing section contents to %s (error: %s)"),
2876 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2877 _("could not retrieve section contents"));
2884 if (gnu_debuglink_filename
!= NULL
)
2886 /* PR 15125: Give a helpful warning message if
2887 the debuglink section already exists, and
2888 allow the rest of the copy to complete. */
2889 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2891 non_fatal (_("%s: debuglink section already exists"),
2892 bfd_get_filename (obfd
));
2893 gnu_debuglink_filename
= NULL
;
2897 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2898 (obfd
, gnu_debuglink_filename
);
2900 if (gnu_debuglink_section
== NULL
)
2902 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2903 _("cannot create debug link section `%s'"),
2904 gnu_debuglink_filename
);
2908 /* Special processing for PE format files. We
2909 have no way to distinguish PE from COFF here. */
2910 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2912 bfd_vma debuglink_vma
;
2913 asection
* highest_section
;
2915 /* The PE spec requires that all sections be adjacent and sorted
2916 in ascending order of VMA. It also specifies that debug
2917 sections should be last. This is despite the fact that debug
2918 sections are not loaded into memory and so in theory have no
2921 This means that the debuglink section must be given a non-zero
2922 VMA which makes it contiguous with other debug sections. So
2923 walk the current section list, find the section with the
2924 highest VMA and start the debuglink section after that one. */
2925 for (osec
= obfd
->sections
, highest_section
= NULL
;
2929 && (highest_section
== NULL
2930 || osec
->vma
> highest_section
->vma
))
2931 highest_section
= osec
;
2933 if (highest_section
)
2934 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2935 + highest_section
->size
,
2936 /* FIXME: We ought to be using
2937 COFF_PAGE_SIZE here or maybe
2938 bfd_get_section_alignment() (if it
2939 was set) but since this is for PE
2940 and we know the required alignment
2941 it is easier just to hard code it. */
2944 /* Umm, not sure what to do in this case. */
2945 debuglink_vma
= 0x1000;
2947 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2952 c
= bfd_count_sections (obfd
);
2954 && (gap_fill_set
|| pad_to_set
))
2958 /* We must fill in gaps between the sections and/or we must pad
2959 the last section to a specified address. We do this by
2960 grabbing a list of the sections, sorting them by VMA, and
2961 increasing the section sizes as required to fill the gaps.
2962 We write out the gap contents below. */
2964 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2966 bfd_map_over_sections (obfd
, get_sections
, &set
);
2968 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2970 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2971 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2975 for (i
= 0; i
< c
- 1; i
++)
2979 bfd_vma gap_start
, gap_stop
;
2981 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2982 if ((flags
& SEC_HAS_CONTENTS
) == 0
2983 || (flags
& SEC_LOAD
) == 0)
2986 size
= bfd_section_size (obfd
, osections
[i
]);
2987 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2988 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2989 if (gap_start
< gap_stop
)
2991 if (! bfd_set_section_size (obfd
, osections
[i
],
2992 size
+ (gap_stop
- gap_start
)))
2994 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2995 _("Can't fill gap after section"));
2999 gaps
[i
] = gap_stop
- gap_start
;
3000 if (max_gap
< gap_stop
- gap_start
)
3001 max_gap
= gap_stop
- gap_start
;
3011 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
3012 size
= bfd_section_size (obfd
, osections
[c
- 1]);
3013 if (lma
+ size
< pad_to
)
3015 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
3018 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
3019 _("can't add padding"));
3024 gaps
[c
- 1] = pad_to
- (lma
+ size
);
3025 if (max_gap
< pad_to
- (lma
+ size
))
3026 max_gap
= pad_to
- (lma
+ size
);
3032 /* Symbol filtering must happen after the output sections
3033 have been created, but before their contents are set. */
3035 if (convert_debugging
)
3036 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3038 if (strip_symbols
== STRIP_DEBUG
3039 || strip_symbols
== STRIP_ALL
3040 || strip_symbols
== STRIP_UNNEEDED
3041 || strip_symbols
== STRIP_NONDEBUG
3042 || strip_symbols
== STRIP_DWO
3043 || strip_symbols
== STRIP_NONDWO
3044 || discard_locals
!= LOCALS_UNDEF
3046 || htab_elements (strip_specific_htab
) != 0
3047 || htab_elements (keep_specific_htab
) != 0
3048 || htab_elements (localize_specific_htab
) != 0
3049 || htab_elements (globalize_specific_htab
) != 0
3050 || htab_elements (keepglobal_specific_htab
) != 0
3051 || htab_elements (weaken_specific_htab
) != 0
3052 || htab_elements (redefine_specific_htab
) != 0
3053 || prefix_symbols_string
3056 || convert_debugging
3057 || change_leading_char
3058 || remove_leading_char
3059 || section_rename_list
3063 /* Mark symbols used in output relocations so that they
3064 are kept, even if they are local labels or static symbols.
3066 Note we iterate over the input sections examining their
3067 relocations since the relocations for the output sections
3068 haven't been set yet. mark_symbols_used_in_relocations will
3069 ignore input sections which have no corresponding output
3071 if (strip_symbols
!= STRIP_ALL
)
3073 bfd_set_error (bfd_error_no_error
);
3074 bfd_map_over_sections (ibfd
,
3075 mark_symbols_used_in_relocations
,
3077 if (bfd_get_error () != bfd_error_no_error
)
3084 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3085 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3088 if (convert_debugging
&& dhandle
!= NULL
)
3090 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
3097 bfd_set_symtab (obfd
, osympp
, symcount
);
3099 /* This has to happen before section positions are set. */
3100 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3102 /* This has to happen after the symbol table has been set. */
3103 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3105 if (add_sections
!= NULL
)
3107 struct section_add
*padd
;
3109 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3111 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3114 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3120 if (update_sections
!= NULL
)
3122 struct section_add
*pupdate
;
3124 for (pupdate
= update_sections
;
3126 pupdate
= pupdate
->next
)
3128 osec
= pupdate
->section
->output_section
;
3129 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3132 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3140 osec
= bfd_get_section_by_name (obfd
, GNU_BUILD_ATTRS_SECTION_NAME
);
3141 if (osec
&& is_merged_note_section (obfd
, osec
))
3143 if (! bfd_set_section_contents (obfd
, osec
, merged_notes
, 0, merged_size
))
3145 bfd_nonfatal_message (NULL
, obfd
, osec
, _("error: failed to copy merged notes into output"));
3149 else if (! is_strip
)
3150 bfd_nonfatal_message (NULL
, obfd
, osec
, _("could not find any mergeable note sections"));
3151 free (merged_notes
);
3152 merged_notes
= NULL
;
3153 merge_notes
= FALSE
;
3156 if (gnu_debuglink_filename
!= NULL
)
3158 if (! bfd_fill_in_gnu_debuglink_section
3159 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3161 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3162 _("cannot fill debug link section `%s'"),
3163 gnu_debuglink_filename
);
3168 if (gap_fill_set
|| pad_to_set
)
3172 /* Fill in the gaps. */
3175 buf
= (bfd_byte
*) xmalloc (max_gap
);
3176 memset (buf
, gap_fill
, max_gap
);
3178 c
= bfd_count_sections (obfd
);
3179 for (i
= 0; i
< c
; i
++)
3187 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
3198 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3201 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3217 /* Allow the BFD backend to copy any private data it understands
3218 from the input BFD to the output BFD. This is done last to
3219 permit the routine to look at the filtered symbol table, which is
3220 important for the ECOFF code at least. */
3221 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3223 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3224 _("error copying private BFD data"));
3228 /* Switch to the alternate machine code. We have to do this at the
3229 very end, because we only initialize the header when we create
3230 the first section. */
3231 if (use_alt_mach_code
!= 0)
3233 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3235 non_fatal (_("this target does not support %lu alternative machine codes"),
3237 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3239 non_fatal (_("treating that number as an absolute e_machine value instead"));
3240 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3243 non_fatal (_("ignoring the alternative value"));
3250 /* Read each archive element in turn from IBFD, copy the
3251 contents to temp file, and keep the temp file handle.
3252 If 'force_output_target' is TRUE then make sure that
3253 all elements in the new archive are of the type
3257 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3258 bfd_boolean force_output_target
,
3259 const bfd_arch_info_type
*input_arch
)
3263 struct name_list
*next
;
3267 bfd
**ptr
= &obfd
->archive_head
;
3270 const char *filename
;
3272 /* Make a temp directory to hold the contents. */
3273 dir
= make_tempdir (bfd_get_filename (obfd
));
3275 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3278 if (strip_symbols
== STRIP_ALL
)
3279 obfd
->has_armap
= FALSE
;
3281 obfd
->has_armap
= ibfd
->has_armap
;
3282 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3285 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3289 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3291 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3294 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3295 goto cleanup_and_exit
;
3298 while (!status
&& this_element
!= NULL
)
3304 int stat_status
= 0;
3305 bfd_boolean del
= TRUE
;
3306 bfd_boolean ok_object
;
3308 /* PR binutils/17533: Do not allow directory traversal
3309 outside of the current directory tree by archive members. */
3310 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3312 non_fatal (_("illegal pathname found in archive member: %s"),
3313 bfd_get_filename (this_element
));
3315 goto cleanup_and_exit
;
3318 /* Create an output file for this member. */
3319 output_name
= concat (dir
, "/",
3320 bfd_get_filename (this_element
), (char *) 0);
3322 /* If the file already exists, make another temp dir. */
3323 if (stat (output_name
, &buf
) >= 0)
3325 char * tmpdir
= make_tempdir (output_name
);
3330 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3333 goto cleanup_and_exit
;
3336 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3341 output_name
= concat (tmpdir
, "/",
3342 bfd_get_filename (this_element
), (char *) 0);
3347 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3349 if (stat_status
!= 0)
3350 non_fatal (_("internal stat error on %s"),
3351 bfd_get_filename (this_element
));
3354 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3355 l
->name
= output_name
;
3360 ok_object
= bfd_check_format (this_element
, bfd_object
);
3362 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3363 _("Unable to recognise the format of file"));
3365 /* PR binutils/3110: Cope with archives
3366 containing multiple target types. */
3367 if (force_output_target
|| !ok_object
)
3368 output_bfd
= bfd_openw (output_name
, output_target
);
3370 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3372 if (output_bfd
== NULL
)
3374 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3376 goto cleanup_and_exit
;
3381 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3383 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3384 /* Try again as an unknown object file. */
3386 else if (!bfd_close (output_bfd
))
3388 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3389 /* Error in new object file. Don't change archive. */
3396 del
= !copy_unknown_object (this_element
, output_bfd
);
3397 if (!bfd_close_all_done (output_bfd
))
3399 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3400 /* Error in new object file. Don't change archive. */
3407 unlink (output_name
);
3412 if (preserve_dates
&& stat_status
== 0)
3413 set_times (output_name
, &buf
);
3415 /* Open the newly output file and attach to our list. */
3416 output_bfd
= bfd_openr (output_name
, output_target
);
3418 l
->obfd
= output_bfd
;
3421 ptr
= &output_bfd
->archive_next
;
3423 last_element
= this_element
;
3425 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3427 bfd_close (last_element
);
3432 filename
= bfd_get_filename (obfd
);
3433 if (!bfd_close (obfd
))
3436 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3439 filename
= bfd_get_filename (ibfd
);
3440 if (!bfd_close (ibfd
))
3443 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3447 /* Delete all the files that we opened. */
3449 struct name_list
* next
;
3451 for (l
= list
; l
!= NULL
; l
= next
)
3453 if (l
->obfd
== NULL
)
3457 bfd_close (l
->obfd
);
3469 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3471 /* This is only relevant to Coff targets. */
3472 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3475 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3476 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3477 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3481 /* The top-level control. */
3484 copy_file (const char *input_filename
, const char *output_filename
,
3485 const char *input_target
, const char *output_target
,
3486 const bfd_arch_info_type
*input_arch
)
3489 char **obj_matching
;
3490 char **core_matching
;
3491 off_t size
= get_file_size (input_filename
);
3496 non_fatal (_("error: the input file '%s' is empty"),
3502 /* To allow us to do "strip *" without dying on the first
3503 non-object file, failures are nonfatal. */
3504 ibfd
= bfd_openr (input_filename
, input_target
);
3507 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3512 switch (do_debug_sections
)
3516 case compress_gnu_zlib
:
3517 case compress_gabi_zlib
:
3518 ibfd
->flags
|= BFD_COMPRESS
;
3519 /* Don't check if input is ELF here since this information is
3520 only available after bfd_check_format_matches is called. */
3521 if (do_debug_sections
!= compress_gnu_zlib
)
3522 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3525 ibfd
->flags
|= BFD_DECOMPRESS
;
3531 switch (do_elf_stt_common
)
3533 case elf_stt_common
:
3534 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3537 case no_elf_stt_common
:
3538 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3544 if (bfd_check_format (ibfd
, bfd_archive
))
3546 bfd_boolean force_output_target
;
3549 /* bfd_get_target does not return the correct value until
3550 bfd_check_format succeeds. */
3551 if (output_target
== NULL
)
3553 output_target
= bfd_get_target (ibfd
);
3554 force_output_target
= FALSE
;
3557 force_output_target
= TRUE
;
3559 obfd
= bfd_openw (output_filename
, output_target
);
3562 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3566 /* This is a no-op on non-Coff targets. */
3567 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3569 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3571 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3576 /* bfd_get_target does not return the correct value until
3577 bfd_check_format succeeds. */
3578 if (output_target
== NULL
)
3579 output_target
= bfd_get_target (ibfd
);
3581 obfd
= bfd_openw (output_filename
, output_target
);
3584 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3588 /* This is a no-op on non-Coff targets. */
3589 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3591 if (! copy_object (ibfd
, obfd
, input_arch
))
3594 /* PR 17512: file: 0f15796a.
3595 If the file could not be copied it may not be in a writeable
3596 state. So use bfd_close_all_done to avoid the possibility of
3597 writing uninitialised data into the file. */
3598 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3601 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3605 if (!bfd_close (ibfd
))
3608 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3614 bfd_error_type obj_error
= bfd_get_error ();
3615 bfd_error_type core_error
;
3617 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3619 /* This probably can't happen.. */
3620 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3621 free (obj_matching
);
3625 core_error
= bfd_get_error ();
3626 /* Report the object error in preference to the core error. */
3627 if (obj_error
!= core_error
)
3628 bfd_set_error (obj_error
);
3630 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3632 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3634 list_matching_formats (obj_matching
);
3635 free (obj_matching
);
3637 if (core_error
== bfd_error_file_ambiguously_recognized
)
3639 list_matching_formats (core_matching
);
3640 free (core_matching
);
3647 /* Add a name to the section renaming list. */
3650 add_section_rename (const char * old_name
, const char * new_name
,
3653 section_rename
* srename
;
3655 /* Check for conflicts first. */
3656 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3657 if (strcmp (srename
->old_name
, old_name
) == 0)
3659 /* Silently ignore duplicate definitions. */
3660 if (strcmp (srename
->new_name
, new_name
) == 0
3661 && srename
->flags
== flags
)
3664 fatal (_("Multiple renames of section %s"), old_name
);
3667 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3669 srename
->old_name
= old_name
;
3670 srename
->new_name
= new_name
;
3671 srename
->flags
= flags
;
3672 srename
->next
= section_rename_list
;
3674 section_rename_list
= srename
;
3677 /* Check the section rename list for a new name of the input section
3678 called OLD_NAME. Returns the new name if one is found and sets
3679 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3682 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3684 const section_rename
*srename
;
3686 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3687 if (strcmp (srename
->old_name
, old_name
) == 0)
3689 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3690 *returned_flags
= srename
->flags
;
3692 return srename
->new_name
;
3698 /* Once each of the sections is copied, we may still need to do some
3699 finalization work for private section headers. Do that here. */
3702 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3704 /* Allow the BFD backend to copy any private data it understands
3705 from the input section to the output section. */
3706 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3709 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3710 _("error in private header data"));
3714 /* All went well. */
3718 /* Create a section in OBFD with the same
3719 name and attributes as ISECTION in IBFD. */
3722 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3724 bfd
*obfd
= (bfd
*) obfdarg
;
3725 struct section_list
*p
;
3733 char *prefix
= NULL
;
3734 bfd_boolean make_nobits
;
3736 if (is_strip_section (ibfd
, isection
))
3739 /* Get the, possibly new, name of the output section. */
3740 name
= bfd_section_name (ibfd
, isection
);
3741 flags
= bfd_get_section_flags (ibfd
, isection
);
3742 name
= find_section_rename (name
, &flags
);
3744 /* Prefix sections. */
3745 if ((prefix_alloc_sections_string
)
3746 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3747 prefix
= prefix_alloc_sections_string
;
3748 else if (prefix_sections_string
)
3749 prefix
= prefix_sections_string
;
3755 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3761 make_nobits
= FALSE
;
3763 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3764 SECTION_CONTEXT_SET_FLAGS
);
3766 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3767 else if (strip_symbols
== STRIP_NONDEBUG
3768 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3769 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3771 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3772 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3776 /* Twiddle the input section flags so that it seems to
3777 elf.c:copy_private_bfd_data that section flags have not
3778 changed between input and output sections. This hack
3779 prevents wholesale rewriting of the program headers. */
3780 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3784 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3786 if (osection
== NULL
)
3788 err
= _("failed to create output section");
3793 elf_section_type (osection
) = SHT_NOBITS
;
3795 size
= bfd_section_size (ibfd
, isection
);
3796 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3798 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3799 else if (extract_symbol
)
3801 if (! bfd_set_section_size (obfd
, osection
, size
))
3803 err
= _("failed to set size");
3807 vma
= bfd_section_vma (ibfd
, isection
);
3808 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3809 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3812 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3818 vma
+= change_section_address
;
3820 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3822 err
= _("failed to set vma");
3826 lma
= isection
->lma
;
3827 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3828 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3831 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3837 lma
+= change_section_address
;
3839 osection
->lma
= lma
;
3841 /* FIXME: This is probably not enough. If we change the LMA we
3842 may have to recompute the header for the file as well. */
3843 if (!bfd_set_section_alignment (obfd
,
3845 bfd_section_alignment (ibfd
, isection
)))
3847 err
= _("failed to set alignment");
3851 /* Copy merge entity size. */
3852 osection
->entsize
= isection
->entsize
;
3854 /* Copy compress status. */
3855 osection
->compress_status
= isection
->compress_status
;
3857 /* This used to be mangle_section; we do here to avoid using
3858 bfd_get_section_by_name since some formats allow multiple
3859 sections with the same name. */
3860 isection
->output_section
= osection
;
3861 isection
->output_offset
= 0;
3863 if ((isection
->flags
& SEC_GROUP
) != 0)
3865 asymbol
*gsym
= group_signature (isection
);
3869 gsym
->flags
|= BSF_KEEP
;
3870 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3871 elf_group_id (isection
) = gsym
;
3875 /* Allow the BFD backend to copy any private data it understands
3876 from the input section to the output section. */
3877 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3879 err
= _("failed to copy private data");
3883 /* All went well. */
3888 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3891 /* Return TRUE if input section ISECTION should be skipped. */
3894 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
3900 /* If we have already failed earlier on,
3901 do not keep on generating complaints now. */
3908 if (is_strip_section (ibfd
, isection
))
3911 if (is_update_section (ibfd
, isection
))
3914 /* When merging a note section we skip the copying of the contents,
3915 but not the copying of the relocs associated with the contents. */
3916 if (skip_copy
&& is_merged_note_section (ibfd
, isection
))
3919 flags
= bfd_get_section_flags (ibfd
, isection
);
3920 if ((flags
& SEC_GROUP
) != 0)
3923 osection
= isection
->output_section
;
3924 size
= bfd_get_section_size (isection
);
3926 if (size
== 0 || osection
== 0)
3932 /* Add section SECTION_PATTERN to the list of sections that will have their
3933 relocations removed. */
3936 handle_remove_relocations_option (const char *section_pattern
)
3938 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
3941 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
3942 otherwise return FALSE. If the user has requested that relocations be
3943 removed from a section that does not have relocations then this
3944 function will still return TRUE. */
3947 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
3949 return (find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3950 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
3953 /* Wrapper for dealing with --remove-section (-R) command line arguments.
3954 A special case is detected here, if the user asks to remove a relocation
3955 section (one starting with ".rela" or ".rel") then this removal must
3956 be done using a different technique in a relocatable object. */
3959 handle_remove_section_option (const char *section_pattern
)
3961 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
3962 if (strncmp (section_pattern
, ".rel", 4) == 0)
3964 section_pattern
+= 4;
3965 if (*section_pattern
== 'a')
3967 if (*section_pattern
)
3968 handle_remove_relocations_option (section_pattern
);
3970 sections_removed
= TRUE
;
3973 /* Copy relocations in input section ISECTION of IBFD to an output
3974 section with the same name in OBFDARG. If stripping then don't
3975 copy any relocation info. */
3978 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3980 bfd
*obfd
= (bfd
*) obfdarg
;
3986 if (skip_section (ibfd
, isection
, FALSE
))
3989 osection
= isection
->output_section
;
3991 /* Core files and DWO files do not need to be relocated. */
3992 if (bfd_get_format (obfd
) == bfd_core
3993 || strip_symbols
== STRIP_NONDWO
3994 || discard_relocations (ibfd
, isection
))
3998 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4002 /* Do not complain if the target does not support relocations. */
4003 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4008 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4016 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4017 osection
->flags
&= ~SEC_RELOC
;
4021 if (isection
->orelocation
!= NULL
)
4023 /* Some other function has already set up the output relocs
4024 for us, so scan those instead of the default relocs. */
4025 relcount
= isection
->reloc_count
;
4026 relpp
= isection
->orelocation
;
4030 relpp
= (arelent
**) xmalloc (relsize
);
4031 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4035 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4036 _("relocation count is negative"));
4041 if (strip_symbols
== STRIP_ALL
)
4043 /* Remove relocations which are not in
4044 keep_strip_specific_list. */
4045 arelent
**temp_relpp
;
4046 long temp_relcount
= 0;
4049 temp_relpp
= (arelent
**) xmalloc (relsize
);
4050 for (i
= 0; i
< relcount
; i
++)
4052 /* PR 17512: file: 9e907e0c. */
4053 if (relpp
[i
]->sym_ptr_ptr
4055 && * relpp
[i
]->sym_ptr_ptr
)
4056 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4057 keep_specific_htab
))
4058 temp_relpp
[temp_relcount
++] = relpp
[i
];
4060 relcount
= temp_relcount
;
4061 if (isection
->orelocation
== NULL
)
4066 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4069 osection
->flags
&= ~SEC_RELOC
;
4075 /* Copy the data of input section ISECTION of IBFD
4076 to an output section with the same name in OBFD. */
4079 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4081 bfd
*obfd
= (bfd
*) obfdarg
;
4082 struct section_list
*p
;
4086 if (skip_section (ibfd
, isection
, TRUE
))
4089 osection
= isection
->output_section
;
4090 /* The output SHF_COMPRESSED section size is different from input if
4091 ELF classes of input and output aren't the same. We can't use
4092 the output section size since --interleave will shrink the output
4093 section. Size will be updated if the section is converted. */
4094 size
= bfd_get_section_size (isection
);
4096 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
4097 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
4099 bfd_byte
*memhunk
= NULL
;
4101 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4102 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4106 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4113 /* We don't handle leftover bytes (too many possible behaviors,
4114 and we don't know what the user wants). The section length
4115 must be a multiple of the number of bytes to swap. */
4116 if ((size
% reverse_bytes
) == 0)
4121 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4122 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4124 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4127 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4128 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4132 /* User must pad the section up in order to do this. */
4133 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4134 bfd_section_name (ibfd
, isection
), reverse_bytes
);
4139 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4140 char *from
= (char *) memhunk
+ copy_byte
;
4141 char *to
= (char *) memhunk
;
4142 char *end
= (char *) memhunk
+ size
;
4145 /* If the section address is not exactly divisible by the interleave,
4146 then we must bias the from address. If the copy_byte is less than
4147 the bias, then we must skip forward one interleave, and increment
4149 int extra
= isection
->lma
% interleave
;
4151 if (copy_byte
< extra
)
4154 for (; from
< end
; from
+= interleave
)
4155 for (i
= 0; i
< copy_width
; i
++)
4157 if (&from
[i
] >= end
)
4162 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4163 osection
->lma
/= interleave
;
4164 if (copy_byte
< extra
)
4168 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4171 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4177 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
4178 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4179 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4181 void *memhunk
= xmalloc (size
);
4183 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4184 flag--they can just remove the section entirely and add it
4185 back again. However, we do permit them to turn on the
4186 SEC_HAS_CONTENTS flag, and take it to mean that the section
4187 contents should be zeroed out. */
4189 memset (memhunk
, 0, size
);
4190 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4193 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4201 /* Get all the sections. This is used when --gap-fill or --pad-to is
4205 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4207 asection
***secppp
= (asection
***) secppparg
;
4209 **secppp
= osection
;
4213 /* Sort sections by VMA. This is called via qsort, and is used when
4214 --gap-fill or --pad-to is used. We force non loadable or empty
4215 sections to the front, where they are easier to ignore. */
4218 compare_section_lma (const void *arg1
, const void *arg2
)
4220 const asection
*const *sec1
= (const asection
* const *) arg1
;
4221 const asection
*const *sec2
= (const asection
* const *) arg2
;
4222 flagword flags1
, flags2
;
4224 /* Sort non loadable sections to the front. */
4225 flags1
= (*sec1
)->flags
;
4226 flags2
= (*sec2
)->flags
;
4227 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4228 || (flags1
& SEC_LOAD
) == 0)
4230 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4231 && (flags2
& SEC_LOAD
) != 0)
4236 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4237 || (flags2
& SEC_LOAD
) == 0)
4241 /* Sort sections by LMA. */
4242 if ((*sec1
)->lma
> (*sec2
)->lma
)
4244 else if ((*sec1
)->lma
< (*sec2
)->lma
)
4247 /* Sort sections with the same LMA by size. */
4248 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
4250 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
4256 /* Mark all the symbols which will be used in output relocations with
4257 the BSF_KEEP flag so that those symbols will not be stripped.
4259 Ignore relocations which will not appear in the output file. */
4262 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4264 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4269 /* Ignore an input section with no corresponding output section. */
4270 if (isection
->output_section
== NULL
)
4273 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4276 /* Do not complain if the target does not support relocations. */
4277 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4279 bfd_fatal (bfd_get_filename (ibfd
));
4285 relpp
= (arelent
**) xmalloc (relsize
);
4286 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4288 bfd_fatal (bfd_get_filename (ibfd
));
4290 /* Examine each symbol used in a relocation. If it's not one of the
4291 special bfd section symbols, then mark it with BSF_KEEP. */
4292 for (i
= 0; i
< relcount
; i
++)
4294 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4295 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4296 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4297 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4298 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4299 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4300 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4307 /* Write out debugging information. */
4310 write_debugging_info (bfd
*obfd
, void *dhandle
,
4311 long *symcountp ATTRIBUTE_UNUSED
,
4312 asymbol
***symppp ATTRIBUTE_UNUSED
)
4314 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4315 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4317 bfd_byte
*syms
, *strings
= NULL
;
4318 bfd_size_type symsize
, stringsize
;
4319 asection
*stabsec
, *stabstrsec
;
4322 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4327 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4328 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4329 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4331 || stabstrsec
== NULL
4332 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
4333 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
4334 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
4335 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
4337 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4338 _("can't create debugging section"));
4343 /* We can get away with setting the section contents now because
4344 the next thing the caller is going to do is copy over the
4345 real sections. We may someday have to split the contents
4346 setting out of this function. */
4347 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4348 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4351 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4352 _("can't set debugging section contents"));
4360 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4361 _("don't know how to write debugging information for %s"),
4362 bfd_get_target (obfd
));
4366 /* If neither -D nor -U was specified explicitly,
4367 then use the configured default. */
4369 default_deterministic (void)
4371 if (deterministic
< 0)
4372 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4376 strip_main (int argc
, char *argv
[])
4378 char *input_target
= NULL
;
4379 char *output_target
= NULL
;
4380 bfd_boolean show_version
= FALSE
;
4381 bfd_boolean formats_info
= FALSE
;
4384 char *output_file
= NULL
;
4388 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4389 strip_options
, (int *) 0)) != EOF
)
4394 input_target
= optarg
;
4397 output_target
= optarg
;
4400 input_target
= output_target
= optarg
;
4403 handle_remove_section_option (optarg
);
4405 case OPTION_REMOVE_RELOCS
:
4406 handle_remove_relocations_option (optarg
);
4409 strip_symbols
= STRIP_ALL
;
4413 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4414 strip_symbols
= STRIP_DEBUG
;
4416 case OPTION_STRIP_DWO
:
4417 strip_symbols
= STRIP_DWO
;
4419 case OPTION_STRIP_UNNEEDED
:
4420 strip_symbols
= STRIP_UNNEEDED
;
4423 add_specific_symbol (optarg
, keep_specific_htab
);
4428 case OPTION_NO_MERGE_NOTES
:
4429 merge_notes
= FALSE
;
4432 add_specific_symbol (optarg
, strip_specific_htab
);
4435 output_file
= optarg
;
4438 preserve_dates
= TRUE
;
4441 deterministic
= TRUE
;
4444 deterministic
= FALSE
;
4447 discard_locals
= LOCALS_ALL
;
4450 discard_locals
= LOCALS_START_L
;
4456 show_version
= TRUE
;
4458 case OPTION_FORMATS_INFO
:
4459 formats_info
= TRUE
;
4461 case OPTION_ONLY_KEEP_DEBUG
:
4462 strip_symbols
= STRIP_NONDEBUG
;
4464 case OPTION_KEEP_FILE_SYMBOLS
:
4465 keep_file_symbols
= 1;
4468 /* We've been given a long option. */
4475 strip_usage (stdout
, 0);
4477 strip_usage (stderr
, 1);
4488 print_version ("strip");
4490 default_deterministic ();
4492 /* Default is to strip all symbols. */
4493 if (strip_symbols
== STRIP_UNDEF
4494 && discard_locals
== LOCALS_UNDEF
4495 && htab_elements (strip_specific_htab
) == 0)
4496 strip_symbols
= STRIP_ALL
;
4498 if (output_target
== NULL
)
4499 output_target
= input_target
;
4503 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4504 strip_usage (stderr
, 1);
4506 for (; i
< argc
; i
++)
4508 int hold_status
= status
;
4509 struct stat statbuf
;
4512 if (get_file_size (argv
[i
]) < 1)
4519 /* No need to check the return value of stat().
4520 It has already been checked in get_file_size(). */
4521 stat (argv
[i
], &statbuf
);
4523 if (output_file
== NULL
4524 || filename_cmp (argv
[i
], output_file
) == 0)
4525 tmpname
= make_tempname (argv
[i
]);
4527 tmpname
= output_file
;
4529 if (tmpname
== NULL
)
4531 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4532 _("could not create temporary file to hold stripped copy"));
4538 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4542 set_times (tmpname
, &statbuf
);
4543 if (output_file
!= tmpname
)
4544 status
= (smart_rename (tmpname
,
4545 output_file
? output_file
: argv
[i
],
4546 preserve_dates
) != 0);
4548 status
= hold_status
;
4551 unlink_if_ordinary (tmpname
);
4552 if (output_file
!= tmpname
)
4559 /* Set up PE subsystem. */
4562 set_pe_subsystem (const char *s
)
4564 const char *version
, *subsystem
;
4574 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4575 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4576 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4577 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4578 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4579 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4580 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4581 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4582 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4583 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4589 /* Check for the presence of a version number. */
4590 version
= strchr (s
, ':');
4591 if (version
== NULL
)
4595 int len
= version
- s
;
4599 version
= copy
+ 1 + len
;
4600 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4602 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4604 non_fatal (_("%s: bad version in PE subsystem"), s
);
4607 /* Check for numeric subsystem. */
4608 value
= (short) strtol (subsystem
, ©
, 0);
4611 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4612 if (v
[i
].value
== value
)
4614 pe_subsystem
= value
;
4615 set_def
= v
[i
].set_def
;
4621 /* Search for subsystem by name. */
4622 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4623 if (strcmp (subsystem
, v
[i
].name
) == 0)
4625 pe_subsystem
= v
[i
].value
;
4626 set_def
= v
[i
].set_def
;
4634 fatal (_("unknown PE subsystem: %s"), s
);
4639 if (pe_file_alignment
== (bfd_vma
) -1)
4640 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4641 if (pe_section_alignment
== (bfd_vma
) -1)
4642 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4646 free ((char *) subsystem
);
4649 /* Convert EFI target to PEI target. */
4652 convert_efi_target (char *efi
)
4658 if (strcmp (efi
+ 4, "ia32") == 0)
4660 /* Change ia32 to i386. */
4665 else if (strcmp (efi
+ 4, "x86_64") == 0)
4667 /* Change x86_64 to x86-64. */
4672 /* Allocate and return a pointer to a struct section_add, initializing the
4673 structure using ARG, a string in the format "sectionname=filename".
4674 The returned structure will have its next pointer set to NEXT. The
4675 OPTION field is the name of the command line option currently being
4676 parsed, and is only used if an error needs to be reported. */
4678 static struct section_add
*
4679 init_section_add (const char *arg
,
4680 struct section_add
*next
,
4683 struct section_add
*pa
;
4686 s
= strchr (arg
, '=');
4688 fatal (_("bad format for %s"), option
);
4690 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4691 pa
->name
= xstrndup (arg
, s
- arg
);
4692 pa
->filename
= s
+ 1;
4694 pa
->contents
= NULL
;
4700 /* Load the file specified in PA, allocating memory to hold the file
4701 contents, and store a pointer to the allocated memory in the contents
4702 field of PA. The size field of PA is also updated. All errors call
4706 section_add_load_file (struct section_add
*pa
)
4711 /* We don't use get_file_size so that we can do
4712 --add-section .note.GNU_stack=/dev/null
4713 get_file_size doesn't work on /dev/null. */
4715 f
= fopen (pa
->filename
, FOPEN_RB
);
4717 fatal (_("cannot open: %s: %s"),
4718 pa
->filename
, strerror (errno
));
4722 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
4730 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
4733 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
4735 fatal (_("%s: fread failed"), pa
->filename
);
4746 copy_main (int argc
, char *argv
[])
4748 char *input_filename
= NULL
;
4749 char *output_filename
= NULL
;
4751 char *input_target
= NULL
;
4752 char *output_target
= NULL
;
4753 bfd_boolean show_version
= FALSE
;
4754 bfd_boolean change_warn
= TRUE
;
4755 bfd_boolean formats_info
= FALSE
;
4756 bfd_boolean use_globalize
= FALSE
;
4757 bfd_boolean use_keep_global
= FALSE
;
4759 struct stat statbuf
;
4760 const bfd_arch_info_type
*input_arch
= NULL
;
4762 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
4763 copy_options
, (int *) 0)) != EOF
)
4768 copy_byte
= atoi (optarg
);
4770 fatal (_("byte number must be non-negative"));
4774 input_arch
= bfd_scan_arch (optarg
);
4775 if (input_arch
== NULL
)
4776 fatal (_("architecture %s unknown"), optarg
);
4782 interleave
= atoi (optarg
);
4784 fatal (_("interleave must be positive"));
4790 case OPTION_INTERLEAVE_WIDTH
:
4791 copy_width
= atoi (optarg
);
4793 fatal(_("interleave width must be positive"));
4797 case 's': /* "source" - 'I' is preferred */
4798 input_target
= optarg
;
4802 case 'd': /* "destination" - 'O' is preferred */
4803 output_target
= optarg
;
4807 input_target
= output_target
= optarg
;
4811 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
4812 sections_copied
= TRUE
;
4816 handle_remove_section_option (optarg
);
4819 case OPTION_REMOVE_RELOCS
:
4820 handle_remove_relocations_option (optarg
);
4824 strip_symbols
= STRIP_ALL
;
4828 strip_symbols
= STRIP_DEBUG
;
4831 case OPTION_STRIP_DWO
:
4832 strip_symbols
= STRIP_DWO
;
4835 case OPTION_STRIP_UNNEEDED
:
4836 strip_symbols
= STRIP_UNNEEDED
;
4839 case OPTION_ONLY_KEEP_DEBUG
:
4840 strip_symbols
= STRIP_NONDEBUG
;
4843 case OPTION_KEEP_FILE_SYMBOLS
:
4844 keep_file_symbols
= 1;
4847 case OPTION_ADD_GNU_DEBUGLINK
:
4848 long_section_names
= ENABLE
;
4849 gnu_debuglink_filename
= optarg
;
4853 add_specific_symbol (optarg
, keep_specific_htab
);
4859 case OPTION_NO_MERGE_NOTES
:
4860 merge_notes
= FALSE
;
4864 add_specific_symbol (optarg
, strip_specific_htab
);
4867 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4868 add_specific_symbol (optarg
, strip_unneeded_htab
);
4872 add_specific_symbol (optarg
, localize_specific_htab
);
4875 case OPTION_GLOBALIZE_SYMBOL
:
4876 use_globalize
= TRUE
;
4877 add_specific_symbol (optarg
, globalize_specific_htab
);
4881 use_keep_global
= TRUE
;
4882 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4886 add_specific_symbol (optarg
, weaken_specific_htab
);
4890 preserve_dates
= TRUE
;
4894 deterministic
= TRUE
;
4898 deterministic
= FALSE
;
4906 discard_locals
= LOCALS_ALL
;
4910 discard_locals
= LOCALS_START_L
;
4918 show_version
= TRUE
;
4921 case OPTION_FORMATS_INFO
:
4922 formats_info
= TRUE
;
4929 case OPTION_ADD_SECTION
:
4930 add_sections
= init_section_add (optarg
, add_sections
,
4932 section_add_load_file (add_sections
);
4935 case OPTION_UPDATE_SECTION
:
4936 update_sections
= init_section_add (optarg
, update_sections
,
4937 "--update-section");
4938 section_add_load_file (update_sections
);
4941 case OPTION_DUMP_SECTION
:
4942 dump_sections
= init_section_add (optarg
, dump_sections
,
4946 case OPTION_ADD_SYMBOL
:
4949 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4951 newsym
->next
= NULL
;
4952 s
= strchr (optarg
, '=');
4954 fatal (_("bad format for %s"), "--add-symbol");
4955 t
= strchr (s
+ 1, ':');
4957 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4960 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4961 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4965 newsym
->section
= NULL
;
4966 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4970 t
= strchr (t
+ 1, ',');
4971 newsym
->othersym
= NULL
;
4973 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4975 newsym
->flags
= BSF_GLOBAL
;
4977 /* Keep 'othersym' symbols at the front of the list. */
4978 if (newsym
->othersym
)
4980 newsym
->next
= add_sym_list
;
4982 add_sym_tail
= &newsym
->next
;
4983 add_sym_list
= newsym
;
4987 *add_sym_tail
= newsym
;
4988 add_sym_tail
= &newsym
->next
;
4994 case OPTION_CHANGE_START
:
4995 change_start
= parse_vma (optarg
, "--change-start");
4998 case OPTION_CHANGE_SECTION_ADDRESS
:
4999 case OPTION_CHANGE_SECTION_LMA
:
5000 case OPTION_CHANGE_SECTION_VMA
:
5002 struct section_list
* p
;
5003 unsigned int context
= 0;
5007 char *option
= NULL
;
5012 case OPTION_CHANGE_SECTION_ADDRESS
:
5013 option
= "--change-section-address";
5014 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5016 case OPTION_CHANGE_SECTION_LMA
:
5017 option
= "--change-section-lma";
5018 context
= SECTION_CONTEXT_ALTER_LMA
;
5020 case OPTION_CHANGE_SECTION_VMA
:
5021 option
= "--change-section-vma";
5022 context
= SECTION_CONTEXT_ALTER_VMA
;
5026 s
= strchr (optarg
, '=');
5029 s
= strchr (optarg
, '+');
5032 s
= strchr (optarg
, '-');
5034 fatal (_("bad format for %s"), option
);
5039 /* Correct the context. */
5042 case OPTION_CHANGE_SECTION_ADDRESS
:
5043 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5045 case OPTION_CHANGE_SECTION_LMA
:
5046 context
= SECTION_CONTEXT_SET_LMA
;
5048 case OPTION_CHANGE_SECTION_VMA
:
5049 context
= SECTION_CONTEXT_SET_VMA
;
5055 name
= (char *) xmalloc (len
+ 1);
5056 strncpy (name
, optarg
, len
);
5059 p
= find_section_list (name
, TRUE
, context
);
5061 val
= parse_vma (s
+ 1, option
);
5067 case OPTION_CHANGE_SECTION_ADDRESS
:
5071 case OPTION_CHANGE_SECTION_LMA
:
5075 case OPTION_CHANGE_SECTION_VMA
:
5082 case OPTION_CHANGE_ADDRESSES
:
5083 change_section_address
= parse_vma (optarg
, "--change-addresses");
5084 change_start
= change_section_address
;
5087 case OPTION_CHANGE_WARNINGS
:
5091 case OPTION_CHANGE_LEADING_CHAR
:
5092 change_leading_char
= TRUE
;
5095 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5098 if (strcasecmp (optarg
, "none") == 0)
5099 do_debug_sections
= decompress
;
5100 else if (strcasecmp (optarg
, "zlib") == 0)
5101 do_debug_sections
= compress_zlib
;
5102 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5103 do_debug_sections
= compress_gnu_zlib
;
5104 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5105 do_debug_sections
= compress_gabi_zlib
;
5107 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5111 do_debug_sections
= compress
;
5114 case OPTION_DEBUGGING
:
5115 convert_debugging
= TRUE
;
5118 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5119 do_debug_sections
= decompress
;
5122 case OPTION_ELF_STT_COMMON
:
5123 if (strcasecmp (optarg
, "yes") == 0)
5124 do_elf_stt_common
= elf_stt_common
;
5125 else if (strcasecmp (optarg
, "no") == 0)
5126 do_elf_stt_common
= no_elf_stt_common
;
5128 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5132 case OPTION_GAP_FILL
:
5134 bfd_vma gap_fill_vma
;
5136 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5137 gap_fill
= (bfd_byte
) gap_fill_vma
;
5138 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5142 sprintf_vma (buff
, gap_fill_vma
);
5144 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5147 gap_fill_set
= TRUE
;
5151 case OPTION_NO_CHANGE_WARNINGS
:
5152 change_warn
= FALSE
;
5156 pad_to
= parse_vma (optarg
, "--pad-to");
5160 case OPTION_REMOVE_LEADING_CHAR
:
5161 remove_leading_char
= TRUE
;
5164 case OPTION_REDEFINE_SYM
:
5166 /* Insert this redefinition onto redefine_specific_htab. */
5170 const char *nextarg
;
5171 char *source
, *target
;
5173 s
= strchr (optarg
, '=');
5175 fatal (_("bad format for %s"), "--redefine-sym");
5178 source
= (char *) xmalloc (len
+ 1);
5179 strncpy (source
, optarg
, len
);
5183 len
= strlen (nextarg
);
5184 target
= (char *) xmalloc (len
+ 1);
5185 strcpy (target
, nextarg
);
5187 add_redefine_and_check ("--redefine-sym", source
, target
);
5194 case OPTION_REDEFINE_SYMS
:
5195 add_redefine_syms_file (optarg
);
5198 case OPTION_SET_SECTION_FLAGS
:
5200 struct section_list
*p
;
5205 s
= strchr (optarg
, '=');
5207 fatal (_("bad format for %s"), "--set-section-flags");
5210 name
= (char *) xmalloc (len
+ 1);
5211 strncpy (name
, optarg
, len
);
5214 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5216 p
->flags
= parse_flags (s
+ 1);
5220 case OPTION_RENAME_SECTION
:
5223 const char *eq
, *fl
;
5228 eq
= strchr (optarg
, '=');
5230 fatal (_("bad format for %s"), "--rename-section");
5234 fatal (_("bad format for %s"), "--rename-section");
5236 old_name
= (char *) xmalloc (len
+ 1);
5237 strncpy (old_name
, optarg
, len
);
5241 fl
= strchr (eq
, ',');
5244 flags
= parse_flags (fl
+ 1);
5254 fatal (_("bad format for %s"), "--rename-section");
5256 new_name
= (char *) xmalloc (len
+ 1);
5257 strncpy (new_name
, eq
, len
);
5260 add_section_rename (old_name
, new_name
, flags
);
5264 case OPTION_SET_START
:
5265 set_start
= parse_vma (optarg
, "--set-start");
5266 set_start_set
= TRUE
;
5269 case OPTION_SREC_LEN
:
5270 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5273 case OPTION_SREC_FORCES3
:
5274 _bfd_srec_forceS3
= TRUE
;
5277 case OPTION_STRIP_SYMBOLS
:
5278 add_specific_symbols (optarg
, strip_specific_htab
,
5279 &strip_specific_buffer
);
5282 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5283 add_specific_symbols (optarg
, strip_unneeded_htab
,
5284 &strip_unneeded_buffer
);
5287 case OPTION_KEEP_SYMBOLS
:
5288 add_specific_symbols (optarg
, keep_specific_htab
,
5289 &keep_specific_buffer
);
5292 case OPTION_LOCALIZE_HIDDEN
:
5293 localize_hidden
= TRUE
;
5296 case OPTION_LOCALIZE_SYMBOLS
:
5297 add_specific_symbols (optarg
, localize_specific_htab
,
5298 &localize_specific_buffer
);
5301 case OPTION_LONG_SECTION_NAMES
:
5302 if (!strcmp ("enable", optarg
))
5303 long_section_names
= ENABLE
;
5304 else if (!strcmp ("disable", optarg
))
5305 long_section_names
= DISABLE
;
5306 else if (!strcmp ("keep", optarg
))
5307 long_section_names
= KEEP
;
5309 fatal (_("unknown long section names option '%s'"), optarg
);
5312 case OPTION_GLOBALIZE_SYMBOLS
:
5313 use_globalize
= TRUE
;
5314 add_specific_symbols (optarg
, globalize_specific_htab
,
5315 &globalize_specific_buffer
);
5318 case OPTION_KEEPGLOBAL_SYMBOLS
:
5319 use_keep_global
= TRUE
;
5320 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5321 &keepglobal_specific_buffer
);
5324 case OPTION_WEAKEN_SYMBOLS
:
5325 add_specific_symbols (optarg
, weaken_specific_htab
,
5326 &weaken_specific_buffer
);
5329 case OPTION_ALT_MACH_CODE
:
5330 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5331 if (use_alt_mach_code
== 0)
5332 fatal (_("unable to parse alternative machine code"));
5335 case OPTION_PREFIX_SYMBOLS
:
5336 prefix_symbols_string
= optarg
;
5339 case OPTION_PREFIX_SECTIONS
:
5340 prefix_sections_string
= optarg
;
5343 case OPTION_PREFIX_ALLOC_SECTIONS
:
5344 prefix_alloc_sections_string
= optarg
;
5347 case OPTION_READONLY_TEXT
:
5348 bfd_flags_to_set
|= WP_TEXT
;
5349 bfd_flags_to_clear
&= ~WP_TEXT
;
5352 case OPTION_WRITABLE_TEXT
:
5353 bfd_flags_to_clear
|= WP_TEXT
;
5354 bfd_flags_to_set
&= ~WP_TEXT
;
5358 bfd_flags_to_set
|= D_PAGED
;
5359 bfd_flags_to_clear
&= ~D_PAGED
;
5363 bfd_flags_to_clear
|= D_PAGED
;
5364 bfd_flags_to_set
&= ~D_PAGED
;
5367 case OPTION_EXTRACT_DWO
:
5368 strip_symbols
= STRIP_NONDWO
;
5371 case OPTION_EXTRACT_SYMBOL
:
5372 extract_symbol
= TRUE
;
5375 case OPTION_REVERSE_BYTES
:
5377 int prev
= reverse_bytes
;
5379 reverse_bytes
= atoi (optarg
);
5380 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5381 fatal (_("number of bytes to reverse must be positive and even"));
5383 if (prev
&& prev
!= reverse_bytes
)
5384 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5389 case OPTION_FILE_ALIGNMENT
:
5390 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5396 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5398 || (*end
!= '.' && *end
!= '\0'))
5399 non_fatal (_("%s: invalid reserve value for --heap"),
5401 else if (*end
!= '\0')
5403 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5405 non_fatal (_("%s: invalid commit value for --heap"),
5411 case OPTION_IMAGE_BASE
:
5412 pe_image_base
= parse_vma (optarg
, "--image-base");
5415 case OPTION_SECTION_ALIGNMENT
:
5416 pe_section_alignment
= parse_vma (optarg
,
5417 "--section-alignment");
5420 case OPTION_SUBSYSTEM
:
5421 set_pe_subsystem (optarg
);
5427 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5429 || (*end
!= '.' && *end
!= '\0'))
5430 non_fatal (_("%s: invalid reserve value for --stack"),
5432 else if (*end
!= '\0')
5434 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5436 non_fatal (_("%s: invalid commit value for --stack"),
5443 /* We've been given a long option. */
5448 copy_usage (stdout
, 0);
5451 copy_usage (stderr
, 1);
5455 if (use_globalize
&& use_keep_global
)
5456 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5465 print_version ("objcopy");
5467 if (interleave
&& copy_byte
== -1)
5468 fatal (_("interleave start byte must be set with --byte"));
5470 if (copy_byte
>= interleave
)
5471 fatal (_("byte number must be less than interleave"));
5473 if (copy_width
> interleave
- copy_byte
)
5474 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5476 if (optind
== argc
|| optind
+ 2 < argc
)
5477 copy_usage (stderr
, 1);
5479 input_filename
= argv
[optind
];
5480 if (optind
+ 1 < argc
)
5481 output_filename
= argv
[optind
+ 1];
5483 default_deterministic ();
5485 /* Default is to strip no symbols. */
5486 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5487 strip_symbols
= STRIP_NONE
;
5489 if (output_target
== NULL
)
5490 output_target
= input_target
;
5492 /* Convert input EFI target to PEI target. */
5493 if (input_target
!= NULL
5494 && strncmp (input_target
, "efi-", 4) == 0)
5498 efi
= xstrdup (output_target
+ 4);
5499 if (strncmp (efi
, "bsdrv-", 6) == 0
5500 || strncmp (efi
, "rtdrv-", 6) == 0)
5502 else if (strncmp (efi
, "app-", 4) != 0)
5503 fatal (_("unknown input EFI target: %s"), input_target
);
5506 convert_efi_target (efi
);
5509 /* Convert output EFI target to PEI target. */
5510 if (output_target
!= NULL
5511 && strncmp (output_target
, "efi-", 4) == 0)
5515 efi
= xstrdup (output_target
+ 4);
5516 if (strncmp (efi
, "app-", 4) == 0)
5518 if (pe_subsystem
== -1)
5519 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5521 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5523 if (pe_subsystem
== -1)
5524 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5527 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5529 if (pe_subsystem
== -1)
5530 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5534 fatal (_("unknown output EFI target: %s"), output_target
);
5536 if (pe_file_alignment
== (bfd_vma
) -1)
5537 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5538 if (pe_section_alignment
== (bfd_vma
) -1)
5539 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5541 output_target
= efi
;
5542 convert_efi_target (efi
);
5546 if (stat (input_filename
, & statbuf
) < 0)
5547 fatal (_("warning: could not locate '%s'. System error message: %s"),
5548 input_filename
, strerror (errno
));
5550 /* If there is no destination file, or the source and destination files
5551 are the same, then create a temp and rename the result into the input. */
5552 if (output_filename
== NULL
5553 || filename_cmp (input_filename
, output_filename
) == 0)
5554 tmpname
= make_tempname (input_filename
);
5556 tmpname
= output_filename
;
5558 if (tmpname
== NULL
)
5559 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5560 input_filename
, strerror (errno
));
5562 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5566 set_times (tmpname
, &statbuf
);
5567 if (tmpname
!= output_filename
)
5568 status
= (smart_rename (tmpname
, input_filename
,
5569 preserve_dates
) != 0);
5572 unlink_if_ordinary (tmpname
);
5574 if (tmpname
!= output_filename
)
5579 struct section_list
*p
;
5581 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5585 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5589 sprintf_vma (buff
, p
->vma_val
);
5591 /* xgettext:c-format */
5592 non_fatal (_("%s %s%c0x%s never used"),
5593 "--change-section-vma",
5595 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5599 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5603 sprintf_vma (buff
, p
->lma_val
);
5605 /* xgettext:c-format */
5606 non_fatal (_("%s %s%c0x%s never used"),
5607 "--change-section-lma",
5609 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5616 if (strip_specific_buffer
)
5617 free (strip_specific_buffer
);
5619 if (strip_unneeded_buffer
)
5620 free (strip_unneeded_buffer
);
5622 if (keep_specific_buffer
)
5623 free (keep_specific_buffer
);
5625 if (localize_specific_buffer
)
5626 free (globalize_specific_buffer
);
5628 if (globalize_specific_buffer
)
5629 free (globalize_specific_buffer
);
5631 if (keepglobal_specific_buffer
)
5632 free (keepglobal_specific_buffer
);
5634 if (weaken_specific_buffer
)
5635 free (weaken_specific_buffer
);
5641 main (int argc
, char *argv
[])
5643 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5644 setlocale (LC_MESSAGES
, "");
5646 #if defined (HAVE_SETLOCALE)
5647 setlocale (LC_CTYPE
, "");
5649 bindtextdomain (PACKAGE
, LOCALEDIR
);
5650 textdomain (PACKAGE
);
5652 program_name
= argv
[0];
5653 xmalloc_set_program_name (program_name
);
5655 START_PROGRESS (program_name
, 0);
5657 expandargv (&argc
, &argv
);
5659 strip_symbols
= STRIP_UNDEF
;
5660 discard_locals
= LOCALS_UNDEF
;
5663 set_default_bfd_target ();
5667 int i
= strlen (program_name
);
5668 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5669 /* Drop the .exe suffix, if any. */
5670 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
5673 program_name
[i
] = '\0';
5676 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
5679 create_symbol_htabs ();
5682 bfd_set_error_program_name (argv
[0]);
5685 strip_main (argc
, argv
);
5687 copy_main (argc
, argv
);
5689 END_PROGRESS (program_name
);