1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2016 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "libiberty.h"
28 #include "filenames.h"
32 #include "coff/internal.h"
35 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
36 header in generic PE code. */
37 #include "coff/i386.h"
40 static bfd_vma pe_file_alignment
= (bfd_vma
) -1;
41 static bfd_vma pe_heap_commit
= (bfd_vma
) -1;
42 static bfd_vma pe_heap_reserve
= (bfd_vma
) -1;
43 static bfd_vma pe_image_base
= (bfd_vma
) -1;
44 static bfd_vma pe_section_alignment
= (bfd_vma
) -1;
45 static bfd_vma pe_stack_commit
= (bfd_vma
) -1;
46 static bfd_vma pe_stack_reserve
= (bfd_vma
) -1;
47 static short pe_subsystem
= -1;
48 static short pe_major_subsystem_version
= -1;
49 static short pe_minor_subsystem_version
= -1;
51 struct is_specified_symbol_predicate_data
57 /* A list to support redefine_sym. */
62 struct redefine_node
*next
;
67 struct addsym_node
*next
;
75 typedef struct section_rename
77 const char * old_name
;
78 const char * new_name
;
80 struct section_rename
* next
;
84 /* List of sections to be renamed. */
85 static section_rename
*section_rename_list
;
87 static asymbol
**isympp
= NULL
; /* Input symbols. */
88 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
90 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
91 static int copy_byte
= -1;
92 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
93 static int copy_width
= 1;
95 static bfd_boolean verbose
; /* Print file and target names. */
96 static bfd_boolean preserve_dates
; /* Preserve input file timestamp. */
97 static int deterministic
= -1; /* Enable deterministic archives. */
98 static int status
= 0; /* Exit status. */
103 STRIP_NONE
, /* Don't strip. */
104 STRIP_DEBUG
, /* Strip all debugger symbols. */
105 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
106 STRIP_NONDEBUG
, /* Strip everything but debug info. */
107 STRIP_DWO
, /* Strip all DWO info. */
108 STRIP_NONDWO
, /* Strip everything but DWO info. */
109 STRIP_ALL
/* Strip all symbols. */
112 /* Which symbols to remove. */
113 static enum strip_action strip_symbols
= STRIP_UNDEF
;
118 LOCALS_START_L
, /* Discard locals starting with L. */
119 LOCALS_ALL
/* Discard all locals. */
122 /* Which local symbols to remove. Overrides STRIP_ALL. */
123 static enum locals_action discard_locals
;
125 /* Structure used to hold lists of sections and actions to take. */
128 struct section_list
* next
; /* Next section to change. */
129 const char * pattern
; /* Section name pattern. */
130 bfd_boolean used
; /* Whether this entry was used. */
132 unsigned int context
; /* What to do with matching sections. */
133 /* Flag bits used in the context field.
134 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
135 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
136 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
137 #define SECTION_CONTEXT_SET_VMA (1 << 2) /* Set the sections' VMA address. */
138 #define SECTION_CONTEXT_ALTER_VMA (1 << 3) /* Increment or decrement the section's VMA address. */
139 #define SECTION_CONTEXT_SET_LMA (1 << 4) /* Set the sections' LMA address. */
140 #define SECTION_CONTEXT_ALTER_LMA (1 << 5) /* Increment or decrement the section's LMA address. */
141 #define SECTION_CONTEXT_SET_FLAGS (1 << 6) /* Set the section's flags. */
142 #define SECTION_CONTEXT_REMOVE_RELOCS (1 << 7) /* Remove relocations for this section. */
144 bfd_vma vma_val
; /* Amount to change by or set to. */
145 bfd_vma lma_val
; /* Amount to change by or set to. */
146 flagword flags
; /* What to set the section flags to. */
149 static struct section_list
*change_sections
;
151 /* TRUE if some sections are to be removed. */
152 static bfd_boolean sections_removed
;
154 /* TRUE if only some sections are to be copied. */
155 static bfd_boolean sections_copied
;
157 /* Changes to the start address. */
158 static bfd_vma change_start
= 0;
159 static bfd_boolean set_start_set
= FALSE
;
160 static bfd_vma set_start
;
162 /* Changes to section addresses. */
163 static bfd_vma change_section_address
= 0;
165 /* Filling gaps between sections. */
166 static bfd_boolean gap_fill_set
= FALSE
;
167 static bfd_byte gap_fill
= 0;
169 /* Pad to a given address. */
170 static bfd_boolean pad_to_set
= FALSE
;
171 static bfd_vma pad_to
;
173 /* Use alternative machine code? */
174 static unsigned long use_alt_mach_code
= 0;
176 /* Output BFD flags user wants to set or clear */
177 static flagword bfd_flags_to_set
;
178 static flagword bfd_flags_to_clear
;
180 /* List of sections to add. */
183 /* Next section to add. */
184 struct section_add
*next
;
185 /* Name of section to add. */
187 /* Name of file holding section contents. */
188 const char *filename
;
191 /* Contents of file. */
193 /* BFD section, after it has been added. */
197 /* List of sections to add to the output BFD. */
198 static struct section_add
*add_sections
;
200 /* List of sections to update in the output BFD. */
201 static struct section_add
*update_sections
;
203 /* List of sections to dump from the output BFD. */
204 static struct section_add
*dump_sections
;
206 /* If non-NULL the argument to --add-gnu-debuglink.
207 This should be the filename to store in the .gnu_debuglink section. */
208 static const char * gnu_debuglink_filename
= NULL
;
210 /* Whether to convert debugging information. */
211 static bfd_boolean convert_debugging
= FALSE
;
213 /* Whether to compress/decompress DWARF debug sections. */
218 compress_zlib
= compress
| 1 << 1,
219 compress_gnu_zlib
= compress
| 1 << 2,
220 compress_gabi_zlib
= compress
| 1 << 3,
222 } do_debug_sections
= nothing
;
224 /* Whether to generate ELF common symbols with the STT_COMMON type. */
225 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
227 /* Whether to change the leading character in symbol names. */
228 static bfd_boolean change_leading_char
= FALSE
;
230 /* Whether to remove the leading character from global symbol names. */
231 static bfd_boolean remove_leading_char
= FALSE
;
233 /* Whether to permit wildcard in symbol comparison. */
234 static bfd_boolean wildcard
= FALSE
;
236 /* True if --localize-hidden is in effect. */
237 static bfd_boolean localize_hidden
= FALSE
;
239 /* List of symbols to strip, keep, localize, keep-global, weaken,
241 static htab_t strip_specific_htab
= NULL
;
242 static htab_t strip_unneeded_htab
= NULL
;
243 static htab_t keep_specific_htab
= NULL
;
244 static htab_t localize_specific_htab
= NULL
;
245 static htab_t globalize_specific_htab
= NULL
;
246 static htab_t keepglobal_specific_htab
= NULL
;
247 static htab_t weaken_specific_htab
= NULL
;
248 static struct redefine_node
*redefine_sym_list
= NULL
;
249 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
250 static int add_symbols
= 0;
252 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
253 static bfd_boolean weaken
= FALSE
;
255 /* If this is TRUE, we retain BSF_FILE symbols. */
256 static bfd_boolean keep_file_symbols
= FALSE
;
258 /* Prefix symbols/sections. */
259 static char *prefix_symbols_string
= 0;
260 static char *prefix_sections_string
= 0;
261 static char *prefix_alloc_sections_string
= 0;
263 /* True if --extract-symbol was passed on the command line. */
264 static bfd_boolean extract_symbol
= FALSE
;
266 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
267 of <reverse_bytes> bytes within each output section. */
268 static int reverse_bytes
= 0;
270 /* For Coff objects, we may want to allow or disallow long section names,
271 or preserve them where found in the inputs. Debug info relies on them. */
272 enum long_section_name_handling
279 /* The default long section handling mode is to preserve them.
280 This is also the only behaviour for 'strip'. */
281 static enum long_section_name_handling long_section_names
= KEEP
;
283 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
284 enum command_line_switch
286 OPTION_ADD_SECTION
=150,
287 OPTION_ADD_GNU_DEBUGLINK
,
289 OPTION_ALT_MACH_CODE
,
290 OPTION_CHANGE_ADDRESSES
,
291 OPTION_CHANGE_LEADING_CHAR
,
292 OPTION_CHANGE_SECTION_ADDRESS
,
293 OPTION_CHANGE_SECTION_LMA
,
294 OPTION_CHANGE_SECTION_VMA
,
296 OPTION_CHANGE_WARNINGS
,
297 OPTION_COMPRESS_DEBUG_SECTIONS
,
299 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
301 OPTION_ELF_STT_COMMON
,
303 OPTION_EXTRACT_SYMBOL
,
304 OPTION_FILE_ALIGNMENT
,
307 OPTION_GLOBALIZE_SYMBOL
,
308 OPTION_GLOBALIZE_SYMBOLS
,
312 OPTION_INTERLEAVE_WIDTH
,
313 OPTION_KEEPGLOBAL_SYMBOLS
,
314 OPTION_KEEP_FILE_SYMBOLS
,
316 OPTION_LOCALIZE_HIDDEN
,
317 OPTION_LOCALIZE_SYMBOLS
,
318 OPTION_LONG_SECTION_NAMES
,
319 OPTION_NO_CHANGE_WARNINGS
,
320 OPTION_ONLY_KEEP_DEBUG
,
322 OPTION_PREFIX_ALLOC_SECTIONS
,
323 OPTION_PREFIX_SECTIONS
,
324 OPTION_PREFIX_SYMBOLS
,
326 OPTION_READONLY_TEXT
,
328 OPTION_REDEFINE_SYMS
,
329 OPTION_REMOVE_LEADING_CHAR
,
330 OPTION_REMOVE_RELOCS
,
331 OPTION_RENAME_SECTION
,
332 OPTION_REVERSE_BYTES
,
333 OPTION_SECTION_ALIGNMENT
,
334 OPTION_SET_SECTION_FLAGS
,
340 OPTION_STRIP_SYMBOLS
,
341 OPTION_STRIP_UNNEEDED
,
342 OPTION_STRIP_UNNEEDED_SYMBOL
,
343 OPTION_STRIP_UNNEEDED_SYMBOLS
,
345 OPTION_UPDATE_SECTION
,
347 OPTION_WEAKEN_SYMBOLS
,
351 /* Options to handle if running as "strip". */
353 static struct option strip_options
[] =
355 {"disable-deterministic-archives", no_argument
, 0, 'U'},
356 {"discard-all", no_argument
, 0, 'x'},
357 {"discard-locals", no_argument
, 0, 'X'},
358 {"enable-deterministic-archives", no_argument
, 0, 'D'},
359 {"format", required_argument
, 0, 'F'}, /* Obsolete */
360 {"help", no_argument
, 0, 'h'},
361 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
362 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
363 {"input-target", required_argument
, 0, 'I'},
364 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
365 {"keep-symbol", required_argument
, 0, 'K'},
366 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
367 {"output-file", required_argument
, 0, 'o'},
368 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
369 {"output-target", required_argument
, 0, 'O'},
370 {"preserve-dates", no_argument
, 0, 'p'},
371 {"remove-section", required_argument
, 0, 'R'},
372 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
373 {"strip-all", no_argument
, 0, 's'},
374 {"strip-debug", no_argument
, 0, 'S'},
375 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
376 {"strip-symbol", required_argument
, 0, 'N'},
377 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
378 {"target", required_argument
, 0, 'F'},
379 {"verbose", no_argument
, 0, 'v'},
380 {"version", no_argument
, 0, 'V'},
381 {"wildcard", no_argument
, 0, 'w'},
382 {0, no_argument
, 0, 0}
385 /* Options to handle if running as "objcopy". */
387 static struct option copy_options
[] =
389 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
390 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
391 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
392 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
393 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
394 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
395 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
396 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
397 {"binary-architecture", required_argument
, 0, 'B'},
398 {"byte", required_argument
, 0, 'b'},
399 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
400 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
401 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
402 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
403 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
404 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
405 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
406 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
407 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
408 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
409 {"disable-deterministic-archives", no_argument
, 0, 'U'},
410 {"discard-all", no_argument
, 0, 'x'},
411 {"discard-locals", no_argument
, 0, 'X'},
412 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
413 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
414 {"enable-deterministic-archives", no_argument
, 0, 'D'},
415 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
416 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
417 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
418 {"format", required_argument
, 0, 'F'}, /* Obsolete */
419 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
420 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
421 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
422 {"heap", required_argument
, 0, OPTION_HEAP
},
423 {"help", no_argument
, 0, 'h'},
424 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
425 {"impure", no_argument
, 0, OPTION_IMPURE
},
426 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
427 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
428 {"input-target", required_argument
, 0, 'I'},
429 {"interleave", optional_argument
, 0, 'i'},
430 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
431 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
432 {"keep-global-symbol", required_argument
, 0, 'G'},
433 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
434 {"keep-symbol", required_argument
, 0, 'K'},
435 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
436 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
437 {"localize-symbol", required_argument
, 0, 'L'},
438 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
439 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
440 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
441 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
442 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
443 {"only-section", required_argument
, 0, 'j'},
444 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
445 {"output-target", required_argument
, 0, 'O'},
446 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
447 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
448 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
449 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
450 {"preserve-dates", no_argument
, 0, 'p'},
451 {"pure", no_argument
, 0, OPTION_PURE
},
452 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
453 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
454 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
455 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
456 {"remove-section", required_argument
, 0, 'R'},
457 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
458 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
459 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
460 {"section-alignment", required_argument
, 0, OPTION_SECTION_ALIGNMENT
},
461 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
462 {"set-start", required_argument
, 0, OPTION_SET_START
},
463 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
464 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
465 {"stack", required_argument
, 0, OPTION_STACK
},
466 {"strip-all", no_argument
, 0, 'S'},
467 {"strip-debug", no_argument
, 0, 'g'},
468 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
469 {"strip-symbol", required_argument
, 0, 'N'},
470 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
471 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
472 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
473 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
474 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
475 {"target", required_argument
, 0, 'F'},
476 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
477 {"verbose", no_argument
, 0, 'v'},
478 {"version", no_argument
, 0, 'V'},
479 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
480 {"weaken-symbol", required_argument
, 0, 'W'},
481 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
482 {"wildcard", no_argument
, 0, 'w'},
483 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
484 {0, no_argument
, 0, 0}
488 extern char *program_name
;
490 /* This flag distinguishes between strip and objcopy:
491 1 means this is 'strip'; 0 means this is 'objcopy'.
492 -1 means if we should use argv[0] to decide. */
495 /* The maximum length of an S record. This variable is declared in srec.c
496 and can be modified by the --srec-len parameter. */
497 extern unsigned int Chunk
;
499 /* Restrict the generation of Srecords to type S3 only.
500 This variable is declare in bfd/srec.c and can be toggled
501 on by the --srec-forceS3 command line switch. */
502 extern bfd_boolean S3Forced
;
504 /* Forward declarations. */
505 static void setup_section (bfd
*, asection
*, void *);
506 static void setup_bfd_headers (bfd
*, bfd
*);
507 static void copy_relocations_in_section (bfd
*, asection
*, void *);
508 static void copy_section (bfd
*, asection
*, void *);
509 static void get_sections (bfd
*, asection
*, void *);
510 static int compare_section_lma (const void *, const void *);
511 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
512 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
513 static const char *lookup_sym_redefinition (const char *);
514 static const char *find_section_rename (const char *, flagword
*);
517 copy_usage (FILE *stream
, int exit_status
)
519 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
520 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
521 fprintf (stream
, _(" The options are:\n"));
522 fprintf (stream
, _("\
523 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
524 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
525 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
526 -F --target <bfdname> Set both input and output format to <bfdname>\n\
527 --debugging Convert debugging information, if possible\n\
528 -p --preserve-dates Copy modified/access timestamps to the output\n"));
529 if (DEFAULT_AR_DETERMINISTIC
)
530 fprintf (stream
, _("\
531 -D --enable-deterministic-archives\n\
532 Produce deterministic output when stripping archives (default)\n\
533 -U --disable-deterministic-archives\n\
534 Disable -D behavior\n"));
536 fprintf (stream
, _("\
537 -D --enable-deterministic-archives\n\
538 Produce deterministic output when stripping archives\n\
539 -U --disable-deterministic-archives\n\
540 Disable -D behavior (default)\n"));
541 fprintf (stream
, _("\
542 -j --only-section <name> Only copy section <name> into the output\n\
543 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
544 -R --remove-section <name> Remove section <name> from the output\n\
545 --remove-relocations <name> Remove relocations from section <name>\n\
546 -S --strip-all Remove all symbol and relocation information\n\
547 -g --strip-debug Remove all debugging symbols & sections\n\
548 --strip-dwo Remove all DWO sections\n\
549 --strip-unneeded Remove all symbols not needed by relocations\n\
550 -N --strip-symbol <name> Do not copy symbol <name>\n\
551 --strip-unneeded-symbol <name>\n\
552 Do not copy symbol <name> unless needed by\n\
554 --only-keep-debug Strip everything but the debug information\n\
555 --extract-dwo Copy only DWO sections\n\
556 --extract-symbol Remove section contents but keep symbols\n\
557 -K --keep-symbol <name> Do not strip symbol <name>\n\
558 --keep-file-symbols Do not strip file symbol(s)\n\
559 --localize-hidden Turn all ELF hidden symbols into locals\n\
560 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
561 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
562 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
563 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
564 --weaken Force all global symbols to be marked as weak\n\
565 -w --wildcard Permit wildcard in symbol comparison\n\
566 -x --discard-all Remove all non-global symbols\n\
567 -X --discard-locals Remove any compiler-generated symbols\n\
568 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
569 --interleave-width <number> Set N for --interleave\n\
570 -b --byte <num> Select byte <num> in every interleaved block\n\
571 --gap-fill <val> Fill gaps between sections with <val>\n\
572 --pad-to <addr> Pad the last section up to address <addr>\n\
573 --set-start <addr> Set the start address to <addr>\n\
574 {--change-start|--adjust-start} <incr>\n\
575 Add <incr> to the start address\n\
576 {--change-addresses|--adjust-vma} <incr>\n\
577 Add <incr> to LMA, VMA and start addresses\n\
578 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
579 Change LMA and VMA of section <name> by <val>\n\
580 --change-section-lma <name>{=|+|-}<val>\n\
581 Change the LMA of section <name> by <val>\n\
582 --change-section-vma <name>{=|+|-}<val>\n\
583 Change the VMA of section <name> by <val>\n\
584 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
585 Warn if a named section does not exist\n\
586 --set-section-flags <name>=<flags>\n\
587 Set section <name>'s properties to <flags>\n\
588 --add-section <name>=<file> Add section <name> found in <file> to output\n\
589 --update-section <name>=<file>\n\
590 Update contents of section <name> with\n\
591 contents found in <file>\n\
592 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
593 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
594 --long-section-names {enable|disable|keep}\n\
595 Handle long section names in Coff objects.\n\
596 --change-leading-char Force output format's leading character style\n\
597 --remove-leading-char Remove leading character from global symbols\n\
598 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
599 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
600 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
602 --srec-len <number> Restrict the length of generated Srecords\n\
603 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
604 --strip-symbols <file> -N for all symbols listed in <file>\n\
605 --strip-unneeded-symbols <file>\n\
606 --strip-unneeded-symbol for all symbols listed\n\
608 --keep-symbols <file> -K for all symbols listed in <file>\n\
609 --localize-symbols <file> -L for all symbols listed in <file>\n\
610 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
611 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
612 --weaken-symbols <file> -W for all symbols listed in <file>\n\
613 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
614 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
615 --writable-text Mark the output text as writable\n\
616 --readonly-text Make the output text write protected\n\
617 --pure Mark the output file as demand paged\n\
618 --impure Mark the output file as impure\n\
619 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
620 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
621 --prefix-alloc-sections <prefix>\n\
622 Add <prefix> to start of every allocatable\n\
624 --file-alignment <num> Set PE file alignment to <num>\n\
625 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
627 --image-base <address> Set PE image base to <address>\n\
628 --section-alignment <num> Set PE section alignment to <num>\n\
629 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
631 --subsystem <name>[:<version>]\n\
632 Set PE subsystem to <name> [& <version>]\n\
633 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
634 Compress DWARF debug sections using zlib\n\
635 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
636 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
638 -v --verbose List all object files modified\n\
639 @<file> Read options from <file>\n\
640 -V --version Display this program's version number\n\
641 -h --help Display this output\n\
642 --info List object formats & architectures supported\n\
644 list_supported_targets (program_name
, stream
);
645 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
646 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
651 strip_usage (FILE *stream
, int exit_status
)
653 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
654 fprintf (stream
, _(" Removes symbols and sections from files\n"));
655 fprintf (stream
, _(" The options are:\n"));
656 fprintf (stream
, _("\
657 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
658 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
659 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
660 -p --preserve-dates Copy modified/access timestamps to the output\n\
662 if (DEFAULT_AR_DETERMINISTIC
)
663 fprintf (stream
, _("\
664 -D --enable-deterministic-archives\n\
665 Produce deterministic output when stripping archives (default)\n\
666 -U --disable-deterministic-archives\n\
667 Disable -D behavior\n"));
669 fprintf (stream
, _("\
670 -D --enable-deterministic-archives\n\
671 Produce deterministic output when stripping archives\n\
672 -U --disable-deterministic-archives\n\
673 Disable -D behavior (default)\n"));
674 fprintf (stream
, _("\
675 -R --remove-section=<name> Also remove section <name> from the output\n\
676 --remove-relocations <name> Remove relocations from section <name>\n\
677 -s --strip-all Remove all symbol and relocation information\n\
678 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
679 --strip-dwo Remove all DWO sections\n\
680 --strip-unneeded Remove all symbols not needed by relocations\n\
681 --only-keep-debug Strip everything but the debug information\n\
682 -N --strip-symbol=<name> Do not copy symbol <name>\n\
683 -K --keep-symbol=<name> Do not strip symbol <name>\n\
684 --keep-file-symbols Do not strip file symbol(s)\n\
685 -w --wildcard Permit wildcard in symbol comparison\n\
686 -x --discard-all Remove all non-global symbols\n\
687 -X --discard-locals Remove any compiler-generated symbols\n\
688 -v --verbose List all object files modified\n\
689 -V --version Display this program's version number\n\
690 -h --help Display this output\n\
691 --info List object formats & architectures supported\n\
692 -o <file> Place stripped output into <file>\n\
695 list_supported_targets (program_name
, stream
);
696 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
697 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
701 /* Parse section flags into a flagword, with a fatal error if the
702 string can't be parsed. */
705 parse_flags (const char *s
)
715 snext
= strchr (s
, ',');
725 #define PARSE_FLAG(fname,fval) \
726 else if (strncasecmp (fname, s, len) == 0) ret |= fval
727 PARSE_FLAG ("alloc", SEC_ALLOC
);
728 PARSE_FLAG ("load", SEC_LOAD
);
729 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
730 PARSE_FLAG ("readonly", SEC_READONLY
);
731 PARSE_FLAG ("debug", SEC_DEBUGGING
);
732 PARSE_FLAG ("code", SEC_CODE
);
733 PARSE_FLAG ("data", SEC_DATA
);
734 PARSE_FLAG ("rom", SEC_ROM
);
735 PARSE_FLAG ("share", SEC_COFF_SHARED
);
736 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
737 PARSE_FLAG ("merge", SEC_MERGE
);
738 PARSE_FLAG ("strings", SEC_STRINGS
);
744 copy
= (char *) xmalloc (len
+ 1);
745 strncpy (copy
, s
, len
);
747 non_fatal (_("unrecognized section flag `%s'"), copy
);
748 fatal (_("supported flags: %s"),
749 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
759 /* Parse symbol flags into a flagword, with a fatal error if the
760 string can't be parsed. */
763 parse_symflags (const char *s
, char **other
)
773 snext
= strchr (s
, ',');
782 #define PARSE_FLAG(fname, fval) \
783 else if (len == sizeof fname - 1 \
784 && strncasecmp (fname, s, len) == 0) \
787 #define PARSE_OTHER(fname, fval) \
788 else if (len >= sizeof fname \
789 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
790 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
793 PARSE_FLAG ("local", BSF_LOCAL
);
794 PARSE_FLAG ("global", BSF_GLOBAL
);
795 PARSE_FLAG ("export", BSF_EXPORT
);
796 PARSE_FLAG ("debug", BSF_DEBUGGING
);
797 PARSE_FLAG ("function", BSF_FUNCTION
);
798 PARSE_FLAG ("weak", BSF_WEAK
);
799 PARSE_FLAG ("section", BSF_SECTION_SYM
);
800 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
801 PARSE_FLAG ("warning", BSF_WARNING
);
802 PARSE_FLAG ("indirect", BSF_INDIRECT
);
803 PARSE_FLAG ("file", BSF_FILE
);
804 PARSE_FLAG ("object", BSF_OBJECT
);
805 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
806 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
807 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
808 PARSE_OTHER ("before=", *other
);
816 copy
= (char *) xmalloc (len
+ 1);
817 strncpy (copy
, s
, len
);
819 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
820 fatal (_("supported flags: %s"),
821 "local, global, export, debug, function, weak, section, "
822 "constructor, warning, indirect, file, object, synthetic, "
823 "indirect-function, unique-object, before=<othersym>");
833 /* Find and optionally add an entry in the change_sections list.
835 We need to be careful in how we match section names because of the support
836 for wildcard characters. For example suppose that the user has invoked
839 --set-section-flags .debug_*=debug
840 --set-section-flags .debug_str=readonly,debug
841 --change-section-address .debug_*ranges=0x1000
843 With the idea that all debug sections will receive the DEBUG flag, the
844 .debug_str section will also receive the READONLY flag and the
845 .debug_ranges and .debug_aranges sections will have their address set to
846 0x1000. (This may not make much sense, but it is just an example).
848 When adding the section name patterns to the section list we need to make
849 sure that previous entries do not match with the new entry, unless the
850 match is exact. (In which case we assume that the user is overriding
851 the previous entry with the new context).
853 When matching real section names to the section list we make use of the
854 wildcard characters, but we must do so in context. Eg if we are setting
855 section addresses then we match for .debug_ranges but not for .debug_info.
857 Finally, if ADD is false and we do find a match, we mark the section list
860 static struct section_list
*
861 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
863 struct section_list
*p
, *match
= NULL
;
865 /* assert ((context & ((1 << 7) - 1)) != 0); */
867 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
871 if (strcmp (p
->pattern
, name
) == 0)
873 /* Check for context conflicts. */
874 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
875 && (context
& SECTION_CONTEXT_COPY
))
876 || ((context
& SECTION_CONTEXT_REMOVE
)
877 && (p
->context
& SECTION_CONTEXT_COPY
)))
878 fatal (_("error: %s both copied and removed"), name
);
880 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
881 && (context
& SECTION_CONTEXT_ALTER_VMA
))
882 || ((context
& SECTION_CONTEXT_SET_VMA
)
883 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
884 fatal (_("error: %s both sets and alters VMA"), name
);
886 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
887 && (context
& SECTION_CONTEXT_ALTER_LMA
))
888 || ((context
& SECTION_CONTEXT_SET_LMA
)
889 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
890 fatal (_("error: %s both sets and alters LMA"), name
);
892 /* Extend the context. */
893 p
->context
|= context
;
897 /* If we are not adding a new name/pattern then
898 only check for a match if the context applies. */
899 else if (p
->context
& context
)
901 /* We could check for the presence of wildchar characters
902 first and choose between calling strcmp and fnmatch,
903 but is that really worth it ? */
904 if (p
->pattern
[0] == '!')
906 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
914 if (fnmatch (p
->pattern
, name
, 0) == 0)
930 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
933 p
->context
= context
;
937 p
->next
= change_sections
;
943 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
946 eq_string (const void *s1
, const void *s2
)
948 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
952 create_symbol_htab (void)
954 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
958 create_symbol_htabs (void)
960 strip_specific_htab
= create_symbol_htab ();
961 strip_unneeded_htab
= create_symbol_htab ();
962 keep_specific_htab
= create_symbol_htab ();
963 localize_specific_htab
= create_symbol_htab ();
964 globalize_specific_htab
= create_symbol_htab ();
965 keepglobal_specific_htab
= create_symbol_htab ();
966 weaken_specific_htab
= create_symbol_htab ();
969 /* Add a symbol to strip_specific_list. */
972 add_specific_symbol (const char *name
, htab_t htab
)
974 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
977 /* Add symbols listed in `filename' to strip_specific_list. */
979 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
980 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
983 add_specific_symbols (const char *filename
, htab_t htab
)
989 unsigned int line_count
;
991 size
= get_file_size (filename
);
998 buffer
= (char *) xmalloc (size
+ 2);
999 f
= fopen (filename
, FOPEN_RT
);
1001 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1003 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1004 fatal (_("%s: fread failed"), filename
);
1007 buffer
[size
] = '\n';
1008 buffer
[size
+ 1] = '\0';
1012 for (line
= buffer
; * line
!= '\0'; line
++)
1017 int finished
= FALSE
;
1019 for (eol
= line
;; eol
++)
1025 /* Cope with \n\r. */
1033 /* Cope with \r\n. */
1044 /* Line comment, Terminate the line here, in case a
1045 name is present and then allow the rest of the
1046 loop to find the real end of the line. */
1058 /* A name may now exist somewhere between 'line' and 'eol'.
1059 Strip off leading whitespace and trailing whitespace,
1060 then add it to the list. */
1061 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1063 for (name_end
= name
;
1064 (! IS_WHITESPACE (* name_end
))
1065 && (! IS_LINE_TERMINATOR (* name_end
));
1069 if (! IS_LINE_TERMINATOR (* name_end
))
1073 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1076 if (! IS_LINE_TERMINATOR (* extra
))
1077 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1078 filename
, line_count
);
1083 if (name_end
> name
)
1084 add_specific_symbol (name
, htab
);
1086 /* Advance line pointer to end of line. The 'eol ++' in the for
1087 loop above will then advance us to the start of the next line. */
1093 /* See whether a symbol should be stripped or kept
1094 based on strip_specific_list and keep_symbols. */
1097 is_specified_symbol_predicate (void **slot
, void *data
)
1099 struct is_specified_symbol_predicate_data
*d
=
1100 (struct is_specified_symbol_predicate_data
*) data
;
1101 const char *slot_name
= (char *) *slot
;
1103 if (*slot_name
!= '!')
1105 if (! fnmatch (slot_name
, d
->name
, 0))
1108 /* Continue traversal, there might be a non-match rule. */
1114 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1117 /* Stop traversal. */
1122 /* Continue traversal. */
1127 is_specified_symbol (const char *name
, htab_t htab
)
1131 struct is_specified_symbol_predicate_data data
;
1136 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1141 return htab_find (htab
, name
) != NULL
;
1144 /* Return a pointer to the symbol used as a signature for GROUP. */
1147 group_signature (asection
*group
)
1149 bfd
*abfd
= group
->owner
;
1150 Elf_Internal_Shdr
*ghdr
;
1152 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1156 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1159 ghdr
= &elf_section_data (group
)->this_hdr
;
1160 if (ghdr
->sh_link
< elf_numsections (abfd
))
1162 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1163 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1165 if (symhdr
->sh_type
== SHT_SYMTAB
1166 && ghdr
->sh_info
> 0
1167 && ghdr
->sh_info
< (symhdr
->sh_size
/ bed
->s
->sizeof_sym
))
1168 return isympp
[ghdr
->sh_info
- 1];
1173 /* Return TRUE if the section is a DWO section. */
1176 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1178 const char *name
= bfd_get_section_name (abfd
, sec
);
1179 int len
= strlen (name
);
1181 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1184 /* Return TRUE if section SEC is in the update list. */
1187 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1189 if (update_sections
!= NULL
)
1191 struct section_add
*pupdate
;
1193 for (pupdate
= update_sections
;
1195 pupdate
= pupdate
->next
)
1197 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1205 /* See if a non-group section is being removed. */
1208 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1210 if (sections_removed
|| sections_copied
)
1212 struct section_list
*p
;
1213 struct section_list
*q
;
1215 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1216 SECTION_CONTEXT_REMOVE
);
1217 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1218 SECTION_CONTEXT_COPY
);
1221 fatal (_("error: section %s matches both remove and copy options"),
1222 bfd_get_section_name (abfd
, sec
));
1223 if (p
&& is_update_section (abfd
, sec
))
1224 fatal (_("error: section %s matches both update and remove options"),
1225 bfd_get_section_name (abfd
, sec
));
1229 if (sections_copied
&& q
== NULL
)
1233 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1235 if (strip_symbols
== STRIP_DEBUG
1236 || strip_symbols
== STRIP_UNNEEDED
1237 || strip_symbols
== STRIP_ALL
1238 || discard_locals
== LOCALS_ALL
1239 || convert_debugging
)
1241 /* By default we don't want to strip .reloc section.
1242 This section has for pe-coff special meaning. See
1243 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1244 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1248 if (strip_symbols
== STRIP_DWO
)
1249 return is_dwo_section (abfd
, sec
);
1251 if (strip_symbols
== STRIP_NONDEBUG
)
1255 if (strip_symbols
== STRIP_NONDWO
)
1256 return !is_dwo_section (abfd
, sec
);
1261 /* See if a section is being removed. */
1264 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1266 if (is_strip_section_1 (abfd
, sec
))
1269 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1273 asection
*elt
, *first
;
1276 If we are going to strip the group signature symbol, then
1277 strip the group section too. */
1278 gsym
= group_signature (sec
);
1283 if ((strip_symbols
== STRIP_ALL
1284 && !is_specified_symbol (gname
, keep_specific_htab
))
1285 || is_specified_symbol (gname
, strip_specific_htab
))
1288 /* Remove the group section if all members are removed. */
1289 first
= elt
= elf_next_in_group (sec
);
1292 if (!is_strip_section_1 (abfd
, elt
))
1294 elt
= elf_next_in_group (elt
);
1306 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1308 /* Always keep ELF note sections. */
1309 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1310 return (elf_section_type (isection
) == SHT_NOTE
);
1312 /* Always keep the .buildid section for PE/COFF.
1314 Strictly, this should be written "always keep the section storing the debug
1315 directory", but that may be the .text section for objects produced by some
1316 tools, which it is not sensible to keep. */
1317 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1318 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1323 /* Return true if SYM is a hidden symbol. */
1326 is_hidden_symbol (asymbol
*sym
)
1328 elf_symbol_type
*elf_sym
;
1330 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1331 if (elf_sym
!= NULL
)
1332 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1342 need_sym_before (struct addsym_node
**node
, const char *sym
)
1345 struct addsym_node
*ptr
= add_sym_list
;
1347 /* 'othersym' symbols are at the front of the list. */
1348 for (count
= 0; count
< add_symbols
; count
++)
1352 else if (strcmp (ptr
->othersym
, sym
) == 0)
1354 free (ptr
->othersym
);
1355 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1365 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1367 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1369 bfd_asymbol_name (sym
) = ptr
->symdef
;
1370 sym
->value
= ptr
->symval
;
1371 sym
->flags
= ptr
->flags
;
1374 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1376 fatal (_("Section %s not found"), ptr
->section
);
1380 sym
->section
= bfd_abs_section_ptr
;
1384 /* Choose which symbol entries to copy; put the result in OSYMS.
1385 We don't copy in place, because that confuses the relocs.
1386 Return the number of symbols to print. */
1389 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1390 asymbol
**isyms
, long symcount
)
1392 asymbol
**from
= isyms
, **to
= osyms
;
1393 long src_count
= 0, dst_count
= 0;
1394 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1396 for (; src_count
< symcount
; src_count
++)
1398 asymbol
*sym
= from
[src_count
];
1399 flagword flags
= sym
->flags
;
1400 char *name
= (char *) bfd_asymbol_name (sym
);
1402 bfd_boolean used_in_reloc
= FALSE
;
1403 bfd_boolean undefined
;
1404 bfd_boolean rem_leading_char
;
1405 bfd_boolean add_leading_char
;
1407 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1411 struct addsym_node
*ptr
;
1413 if (need_sym_before (&ptr
, name
))
1414 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1417 if (redefine_sym_list
|| section_rename_list
)
1421 new_name
= (char *) lookup_sym_redefinition (name
);
1422 if (new_name
== name
1423 && (flags
& BSF_SECTION_SYM
) != 0)
1424 new_name
= (char *) find_section_rename (name
, NULL
);
1425 bfd_asymbol_name (sym
) = new_name
;
1429 /* Check if we will remove the current leading character. */
1431 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1432 && (change_leading_char
1433 || (remove_leading_char
1434 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1436 || bfd_is_com_section (bfd_get_section (sym
)))));
1438 /* Check if we will add a new leading character. */
1441 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1442 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1443 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1445 /* Short circuit for change_leading_char if we can do it in-place. */
1446 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1448 name
[0] = bfd_get_symbol_leading_char (obfd
);
1449 bfd_asymbol_name (sym
) = name
;
1450 rem_leading_char
= FALSE
;
1451 add_leading_char
= FALSE
;
1454 /* Remove leading char. */
1455 if (rem_leading_char
)
1456 bfd_asymbol_name (sym
) = ++name
;
1458 /* Add new leading char and/or prefix. */
1459 if (add_leading_char
|| prefix_symbols_string
)
1463 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1464 + strlen (name
) + 1);
1465 if (add_leading_char
)
1466 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1468 if (prefix_symbols_string
)
1470 strcpy (ptr
, prefix_symbols_string
);
1471 ptr
+= strlen (prefix_symbols_string
);
1475 bfd_asymbol_name (sym
) = n
;
1479 if (strip_symbols
== STRIP_ALL
)
1481 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1482 || ((flags
& BSF_SECTION_SYM
) != 0
1483 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1487 used_in_reloc
= TRUE
;
1489 else if (relocatable
/* Relocatable file. */
1490 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1491 || bfd_is_com_section (bfd_get_section (sym
))))
1493 else if (bfd_decode_symclass (sym
) == 'I')
1494 /* Global symbols in $idata sections need to be retained
1495 even if relocatable is FALSE. External users of the
1496 library containing the $idata section may reference these
1499 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1500 || (flags
& BSF_WEAK
) != 0
1502 || bfd_is_com_section (bfd_get_section (sym
)))
1503 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1504 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1505 keep
= (strip_symbols
!= STRIP_DEBUG
1506 && strip_symbols
!= STRIP_UNNEEDED
1507 && ! convert_debugging
);
1508 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1509 /* COMDAT sections store special information in local
1510 symbols, so we cannot risk stripping any of them. */
1512 else /* Local symbol. */
1513 keep
= (strip_symbols
!= STRIP_UNNEEDED
1514 && (discard_locals
!= LOCALS_ALL
1515 && (discard_locals
!= LOCALS_START_L
1516 || ! bfd_is_local_label (abfd
, sym
))));
1518 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1520 /* There are multiple ways to set 'keep' above, but if it
1521 was the relocatable symbol case, then that's an error. */
1524 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1532 && !(flags
& BSF_KEEP
)
1533 && is_specified_symbol (name
, strip_unneeded_htab
))
1537 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1538 || is_specified_symbol (name
, keep_specific_htab
)))
1541 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1546 if ((flags
& BSF_GLOBAL
) != 0
1547 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1549 sym
->flags
&= ~ BSF_GLOBAL
;
1550 sym
->flags
|= BSF_WEAK
;
1554 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1555 && (is_specified_symbol (name
, localize_specific_htab
)
1556 || (htab_elements (keepglobal_specific_htab
) != 0
1557 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1558 || (localize_hidden
&& is_hidden_symbol (sym
))))
1560 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1561 sym
->flags
|= BSF_LOCAL
;
1565 && (flags
& BSF_LOCAL
)
1566 && is_specified_symbol (name
, globalize_specific_htab
))
1568 sym
->flags
&= ~ BSF_LOCAL
;
1569 sym
->flags
|= BSF_GLOBAL
;
1572 to
[dst_count
++] = sym
;
1577 struct addsym_node
*ptr
= add_sym_list
;
1579 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1583 if (strcmp (ptr
->othersym
, ""))
1584 fatal (_("'before=%s' not found"), ptr
->othersym
);
1587 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1593 to
[dst_count
] = NULL
;
1598 /* Find the redefined name of symbol SOURCE. */
1601 lookup_sym_redefinition (const char *source
)
1603 struct redefine_node
*list
;
1605 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1606 if (strcmp (source
, list
->source
) == 0)
1607 return list
->target
;
1612 /* Add a node to a symbol redefine list. */
1615 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1617 struct redefine_node
**p
;
1618 struct redefine_node
*list
;
1619 struct redefine_node
*new_node
;
1621 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1623 if (strcmp (source
, list
->source
) == 0)
1624 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1627 if (strcmp (target
, list
->target
) == 0)
1628 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1632 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1634 new_node
->source
= strdup (source
);
1635 new_node
->target
= strdup (target
);
1636 new_node
->next
= NULL
;
1641 /* Handle the --redefine-syms option. Read lines containing "old new"
1642 from the file, and add them to the symbol redefine list. */
1645 add_redefine_syms_file (const char *filename
)
1654 file
= fopen (filename
, "r");
1656 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1657 filename
, strerror (errno
));
1660 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1668 /* Collect the input symbol name. */
1669 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1677 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1685 /* Eat white space between the symbol names. */
1686 while (IS_WHITESPACE (c
))
1688 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1693 /* Collect the output symbol name. */
1695 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1703 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1711 /* Eat white space at end of line. */
1712 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1717 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1718 || c
== '\n' || c
== EOF
)
1721 /* Append the redefinition to the list. */
1723 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1734 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1736 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1737 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1740 /* Eat the rest of the line and finish it. */
1741 while (c
!= '\n' && c
!= EOF
)
1747 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1752 /* Copy unkown object file IBFD onto OBFD.
1753 Returns TRUE upon success, FALSE otherwise. */
1756 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1764 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1766 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1773 non_fatal (_("stat returns negative size for `%s'"),
1774 bfd_get_archive_filename (ibfd
));
1778 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1780 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1785 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1786 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1788 cbuf
= (char *) xmalloc (BUFSIZE
);
1790 while (ncopied
< size
)
1792 tocopy
= size
- ncopied
;
1793 if (tocopy
> BUFSIZE
)
1796 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1797 != (bfd_size_type
) tocopy
)
1799 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1804 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1805 != (bfd_size_type
) tocopy
)
1807 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1815 /* We should at least to be able to read it back when copying an
1816 unknown object in an archive. */
1817 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1822 /* Copy object file IBFD onto OBFD.
1823 Returns TRUE upon success, FALSE otherwise. */
1826 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1830 asection
**osections
= NULL
;
1831 asection
*gnu_debuglink_section
= NULL
;
1832 bfd_size_type
*gaps
= NULL
;
1833 bfd_size_type max_gap
= 0;
1836 enum bfd_architecture iarch
;
1840 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1841 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1842 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1844 /* PR 17636: Call non-fatal so that we return to our parent who
1845 may need to tidy temporary files. */
1846 non_fatal (_("Unable to change endianness of input file(s)"));
1850 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1852 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1856 if (ibfd
->sections
== NULL
)
1858 non_fatal (_("error: the input file '%s' has no sections"),
1859 bfd_get_archive_filename (ibfd
));
1863 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
1865 if ((do_debug_sections
& compress
) != 0
1866 && do_debug_sections
!= compress
)
1868 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1869 bfd_get_archive_filename (ibfd
));
1873 if (do_elf_stt_common
)
1875 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
1876 bfd_get_archive_filename (ibfd
));
1882 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1883 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1884 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1893 start
= bfd_get_start_address (ibfd
);
1894 start
+= change_start
;
1897 /* Neither the start address nor the flags
1898 need to be set for a core file. */
1899 if (bfd_get_format (obfd
) != bfd_core
)
1903 flags
= bfd_get_file_flags (ibfd
);
1904 flags
|= bfd_flags_to_set
;
1905 flags
&= ~bfd_flags_to_clear
;
1906 flags
&= bfd_applicable_file_flags (obfd
);
1908 if (strip_symbols
== STRIP_ALL
)
1909 flags
&= ~HAS_RELOC
;
1911 if (!bfd_set_start_address (obfd
, start
)
1912 || !bfd_set_file_flags (obfd
, flags
))
1914 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1919 /* Copy architecture of input file to output file. */
1920 iarch
= bfd_get_arch (ibfd
);
1921 imach
= bfd_get_mach (ibfd
);
1924 if (bfd_get_arch_info (ibfd
) == NULL
1925 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1927 iarch
= input_arch
->arch
;
1928 imach
= input_arch
->mach
;
1931 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1932 bfd_get_archive_filename (ibfd
));
1934 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1935 && (ibfd
->target_defaulted
1936 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1938 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1939 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1940 bfd_get_archive_filename (ibfd
));
1942 non_fatal (_("Output file cannot represent architecture `%s'"),
1943 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1944 bfd_get_mach (ibfd
)));
1948 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1950 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1954 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1955 && bfd_pei_p (obfd
))
1957 /* Set up PE parameters. */
1958 pe_data_type
*pe
= pe_data (obfd
);
1960 /* Copy PE parameters before changing them. */
1961 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1962 && bfd_pei_p (ibfd
))
1963 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1965 if (pe_file_alignment
!= (bfd_vma
) -1)
1966 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1968 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1970 if (pe_heap_commit
!= (bfd_vma
) -1)
1971 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1973 if (pe_heap_reserve
!= (bfd_vma
) -1)
1974 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1976 if (pe_image_base
!= (bfd_vma
) -1)
1977 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1979 if (pe_section_alignment
!= (bfd_vma
) -1)
1980 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1982 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1984 if (pe_stack_commit
!= (bfd_vma
) -1)
1985 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1987 if (pe_stack_reserve
!= (bfd_vma
) -1)
1988 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1990 if (pe_subsystem
!= -1)
1991 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1993 if (pe_major_subsystem_version
!= -1)
1994 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1996 if (pe_minor_subsystem_version
!= -1)
1997 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1999 if (pe_file_alignment
> pe_section_alignment
)
2001 char file_alignment
[20], section_alignment
[20];
2003 sprintf_vma (file_alignment
, pe_file_alignment
);
2004 sprintf_vma (section_alignment
, pe_section_alignment
);
2005 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2007 file_alignment
, section_alignment
);
2014 if (osympp
!= isympp
)
2020 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2023 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2027 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2028 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2031 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2034 /* PR 17512: file: d6323821
2035 If the symbol table could not be loaded do not pretend that we have
2036 any symbols. This trips us up later on when we load the relocs. */
2040 osympp
= isympp
= NULL
;
2043 /* BFD mandates that all output sections be created and sizes set before
2044 any output is done. Thus, we traverse all sections multiple times. */
2045 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2047 if (!extract_symbol
)
2048 setup_bfd_headers (ibfd
, obfd
);
2050 if (add_sections
!= NULL
)
2052 struct section_add
*padd
;
2053 struct section_list
*pset
;
2055 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2059 pset
= find_section_list (padd
->name
, FALSE
,
2060 SECTION_CONTEXT_SET_FLAGS
);
2062 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2064 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2066 /* bfd_make_section_with_flags() does not return very helpful
2067 error codes, so check for the most likely user error first. */
2068 if (bfd_get_section_by_name (obfd
, padd
->name
))
2070 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2071 _("can't add section '%s'"), padd
->name
);
2076 /* We use LINKER_CREATED here so that the backend hooks
2077 will create any special section type information,
2078 instead of presuming we know what we're doing merely
2079 because we set the flags. */
2080 padd
->section
= bfd_make_section_with_flags
2081 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2082 if (padd
->section
== NULL
)
2084 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2085 _("can't create section `%s'"),
2091 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2093 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2097 pset
= find_section_list (padd
->name
, FALSE
,
2098 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2100 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2102 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2106 pset
= find_section_list (padd
->name
, FALSE
,
2107 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2110 padd
->section
->lma
= pset
->lma_val
;
2112 if (! bfd_set_section_alignment
2113 (obfd
, padd
->section
,
2114 bfd_section_alignment (obfd
, padd
->section
)))
2116 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2123 if (update_sections
!= NULL
)
2125 struct section_add
*pupdate
;
2127 for (pupdate
= update_sections
;
2129 pupdate
= pupdate
->next
)
2133 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2134 if (pupdate
->section
== NULL
)
2136 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2140 osec
= pupdate
->section
->output_section
;
2141 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2143 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2149 if (dump_sections
!= NULL
)
2151 struct section_add
* pdump
;
2153 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2157 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2160 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2161 _("can't dump section '%s' - it does not exist"),
2166 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
2168 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2169 _("can't dump section - it has no contents"));
2173 bfd_size_type size
= bfd_get_section_size (sec
);
2176 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2177 _("can't dump section - it is empty"));
2182 f
= fopen (pdump
->filename
, FOPEN_WB
);
2185 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2186 _("could not open section dump file"));
2190 bfd_byte
* contents
= xmalloc (size
);
2191 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
2193 if (fwrite (contents
, 1, size
, f
) != size
)
2195 non_fatal (_("error writing section contents to %s (error: %s)"),
2202 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2203 _("could not retrieve section contents"));
2210 if (gnu_debuglink_filename
!= NULL
)
2212 /* PR 15125: Give a helpful warning message if
2213 the debuglink section already exists, and
2214 allow the rest of the copy to complete. */
2215 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2217 non_fatal (_("%s: debuglink section already exists"),
2218 bfd_get_filename (obfd
));
2219 gnu_debuglink_filename
= NULL
;
2223 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2224 (obfd
, gnu_debuglink_filename
);
2226 if (gnu_debuglink_section
== NULL
)
2228 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2229 _("cannot create debug link section `%s'"),
2230 gnu_debuglink_filename
);
2234 /* Special processing for PE format files. We
2235 have no way to distinguish PE from COFF here. */
2236 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2238 bfd_vma debuglink_vma
;
2239 asection
* highest_section
;
2242 /* The PE spec requires that all sections be adjacent and sorted
2243 in ascending order of VMA. It also specifies that debug
2244 sections should be last. This is despite the fact that debug
2245 sections are not loaded into memory and so in theory have no
2248 This means that the debuglink section must be given a non-zero
2249 VMA which makes it contiguous with other debug sections. So
2250 walk the current section list, find the section with the
2251 highest VMA and start the debuglink section after that one. */
2252 for (sec
= obfd
->sections
, highest_section
= NULL
;
2256 && (highest_section
== NULL
2257 || sec
->vma
> highest_section
->vma
))
2258 highest_section
= sec
;
2260 if (highest_section
)
2261 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2262 + highest_section
->size
,
2263 /* FIXME: We ought to be using
2264 COFF_PAGE_SIZE here or maybe
2265 bfd_get_section_alignment() (if it
2266 was set) but since this is for PE
2267 and we know the required alignment
2268 it is easier just to hard code it. */
2271 /* Umm, not sure what to do in this case. */
2272 debuglink_vma
= 0x1000;
2274 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2279 c
= bfd_count_sections (obfd
);
2281 && (gap_fill_set
|| pad_to_set
))
2285 /* We must fill in gaps between the sections and/or we must pad
2286 the last section to a specified address. We do this by
2287 grabbing a list of the sections, sorting them by VMA, and
2288 increasing the section sizes as required to fill the gaps.
2289 We write out the gap contents below. */
2291 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2293 bfd_map_over_sections (obfd
, get_sections
, &set
);
2295 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2297 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2298 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2302 for (i
= 0; i
< c
- 1; i
++)
2306 bfd_vma gap_start
, gap_stop
;
2308 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2309 if ((flags
& SEC_HAS_CONTENTS
) == 0
2310 || (flags
& SEC_LOAD
) == 0)
2313 size
= bfd_section_size (obfd
, osections
[i
]);
2314 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2315 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2316 if (gap_start
< gap_stop
)
2318 if (! bfd_set_section_size (obfd
, osections
[i
],
2319 size
+ (gap_stop
- gap_start
)))
2321 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2322 _("Can't fill gap after section"));
2326 gaps
[i
] = gap_stop
- gap_start
;
2327 if (max_gap
< gap_stop
- gap_start
)
2328 max_gap
= gap_stop
- gap_start
;
2338 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2339 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2340 if (lma
+ size
< pad_to
)
2342 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2345 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2346 _("can't add padding"));
2351 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2352 if (max_gap
< pad_to
- (lma
+ size
))
2353 max_gap
= pad_to
- (lma
+ size
);
2359 /* Symbol filtering must happen after the output sections
2360 have been created, but before their contents are set. */
2362 if (convert_debugging
)
2363 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2365 if (strip_symbols
== STRIP_DEBUG
2366 || strip_symbols
== STRIP_ALL
2367 || strip_symbols
== STRIP_UNNEEDED
2368 || strip_symbols
== STRIP_NONDEBUG
2369 || strip_symbols
== STRIP_DWO
2370 || strip_symbols
== STRIP_NONDWO
2371 || discard_locals
!= LOCALS_UNDEF
2373 || htab_elements (strip_specific_htab
) != 0
2374 || htab_elements (keep_specific_htab
) != 0
2375 || htab_elements (localize_specific_htab
) != 0
2376 || htab_elements (globalize_specific_htab
) != 0
2377 || htab_elements (keepglobal_specific_htab
) != 0
2378 || htab_elements (weaken_specific_htab
) != 0
2379 || prefix_symbols_string
2382 || convert_debugging
2383 || change_leading_char
2384 || remove_leading_char
2385 || redefine_sym_list
2386 || section_rename_list
2390 /* Mark symbols used in output relocations so that they
2391 are kept, even if they are local labels or static symbols.
2393 Note we iterate over the input sections examining their
2394 relocations since the relocations for the output sections
2395 haven't been set yet. mark_symbols_used_in_relocations will
2396 ignore input sections which have no corresponding output
2398 if (strip_symbols
!= STRIP_ALL
)
2399 bfd_map_over_sections (ibfd
,
2400 mark_symbols_used_in_relocations
,
2402 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
2403 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2406 if (convert_debugging
&& dhandle
!= NULL
)
2408 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2415 bfd_set_symtab (obfd
, osympp
, symcount
);
2417 /* This has to happen before section positions are set. */
2418 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2420 /* This has to happen after the symbol table has been set. */
2421 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2423 if (add_sections
!= NULL
)
2425 struct section_add
*padd
;
2427 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2429 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2432 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2438 if (update_sections
!= NULL
)
2440 struct section_add
*pupdate
;
2442 for (pupdate
= update_sections
;
2444 pupdate
= pupdate
->next
)
2448 osec
= pupdate
->section
->output_section
;
2449 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2452 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2458 if (gnu_debuglink_filename
!= NULL
)
2460 if (! bfd_fill_in_gnu_debuglink_section
2461 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2463 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2464 _("cannot fill debug link section `%s'"),
2465 gnu_debuglink_filename
);
2470 if (gap_fill_set
|| pad_to_set
)
2474 /* Fill in the gaps. */
2477 buf
= (bfd_byte
*) xmalloc (max_gap
);
2478 memset (buf
, gap_fill
, max_gap
);
2480 c
= bfd_count_sections (obfd
);
2481 for (i
= 0; i
< c
; i
++)
2489 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2500 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2503 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2514 /* Allow the BFD backend to copy any private data it understands
2515 from the input BFD to the output BFD. This is done last to
2516 permit the routine to look at the filtered symbol table, which is
2517 important for the ECOFF code at least. */
2518 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2520 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2521 _("error copying private BFD data"));
2525 /* Switch to the alternate machine code. We have to do this at the
2526 very end, because we only initialize the header when we create
2527 the first section. */
2528 if (use_alt_mach_code
!= 0)
2530 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2532 non_fatal (_("this target does not support %lu alternative machine codes"),
2534 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2536 non_fatal (_("treating that number as an absolute e_machine value instead"));
2537 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2540 non_fatal (_("ignoring the alternative value"));
2547 /* Read each archive element in turn from IBFD, copy the
2548 contents to temp file, and keep the temp file handle.
2549 If 'force_output_target' is TRUE then make sure that
2550 all elements in the new archive are of the type
2554 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2555 bfd_boolean force_output_target
,
2556 const bfd_arch_info_type
*input_arch
)
2560 struct name_list
*next
;
2564 bfd
**ptr
= &obfd
->archive_head
;
2567 const char *filename
;
2569 /* Make a temp directory to hold the contents. */
2570 dir
= make_tempdir (bfd_get_filename (obfd
));
2572 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2575 if (strip_symbols
== STRIP_ALL
)
2576 obfd
->has_armap
= FALSE
;
2578 obfd
->has_armap
= ibfd
->has_armap
;
2579 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2582 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2586 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2588 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2591 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2592 goto cleanup_and_exit
;
2595 while (!status
&& this_element
!= NULL
)
2601 int stat_status
= 0;
2602 bfd_boolean del
= TRUE
;
2603 bfd_boolean ok_object
;
2605 /* PR binutils/17533: Do not allow directory traversal
2606 outside of the current directory tree by archive members. */
2607 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2609 non_fatal (_("illegal pathname found in archive member: %s"),
2610 bfd_get_filename (this_element
));
2612 goto cleanup_and_exit
;
2615 /* Create an output file for this member. */
2616 output_name
= concat (dir
, "/",
2617 bfd_get_filename (this_element
), (char *) 0);
2619 /* If the file already exists, make another temp dir. */
2620 if (stat (output_name
, &buf
) >= 0)
2622 output_name
= make_tempdir (output_name
);
2623 if (output_name
== NULL
)
2625 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2628 goto cleanup_and_exit
;
2631 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2632 l
->name
= output_name
;
2636 output_name
= concat (output_name
, "/",
2637 bfd_get_filename (this_element
), (char *) 0);
2642 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2644 if (stat_status
!= 0)
2645 non_fatal (_("internal stat error on %s"),
2646 bfd_get_filename (this_element
));
2649 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2650 l
->name
= output_name
;
2655 ok_object
= bfd_check_format (this_element
, bfd_object
);
2657 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2658 _("Unable to recognise the format of file"));
2660 /* PR binutils/3110: Cope with archives
2661 containing multiple target types. */
2662 if (force_output_target
|| !ok_object
)
2663 output_bfd
= bfd_openw (output_name
, output_target
);
2665 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2667 if (output_bfd
== NULL
)
2669 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2671 goto cleanup_and_exit
;
2676 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2678 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2679 /* Try again as an unknown object file. */
2681 else if (!bfd_close (output_bfd
))
2683 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2684 /* Error in new object file. Don't change archive. */
2691 del
= !copy_unknown_object (this_element
, output_bfd
);
2692 if (!bfd_close_all_done (output_bfd
))
2694 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2695 /* Error in new object file. Don't change archive. */
2702 unlink (output_name
);
2707 if (preserve_dates
&& stat_status
== 0)
2708 set_times (output_name
, &buf
);
2710 /* Open the newly output file and attach to our list. */
2711 output_bfd
= bfd_openr (output_name
, output_target
);
2713 l
->obfd
= output_bfd
;
2716 ptr
= &output_bfd
->archive_next
;
2718 last_element
= this_element
;
2720 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2722 bfd_close (last_element
);
2727 filename
= bfd_get_filename (obfd
);
2728 if (!bfd_close (obfd
))
2731 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2734 filename
= bfd_get_filename (ibfd
);
2735 if (!bfd_close (ibfd
))
2738 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2742 /* Delete all the files that we opened. */
2743 for (l
= list
; l
!= NULL
; l
= l
->next
)
2745 if (l
->obfd
== NULL
)
2749 bfd_close (l
->obfd
);
2758 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2760 /* This is only relevant to Coff targets. */
2761 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2764 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2765 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2766 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2770 /* The top-level control. */
2773 copy_file (const char *input_filename
, const char *output_filename
,
2774 const char *input_target
, const char *output_target
,
2775 const bfd_arch_info_type
*input_arch
)
2778 char **obj_matching
;
2779 char **core_matching
;
2780 off_t size
= get_file_size (input_filename
);
2785 non_fatal (_("error: the input file '%s' is empty"),
2791 /* To allow us to do "strip *" without dying on the first
2792 non-object file, failures are nonfatal. */
2793 ibfd
= bfd_openr (input_filename
, input_target
);
2796 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2801 switch (do_debug_sections
)
2805 case compress_gnu_zlib
:
2806 case compress_gabi_zlib
:
2807 ibfd
->flags
|= BFD_COMPRESS
;
2808 /* Don't check if input is ELF here since this information is
2809 only available after bfd_check_format_matches is called. */
2810 if (do_debug_sections
!= compress_gnu_zlib
)
2811 ibfd
->flags
|= BFD_COMPRESS_GABI
;
2814 ibfd
->flags
|= BFD_DECOMPRESS
;
2820 switch (do_elf_stt_common
)
2822 case elf_stt_common
:
2823 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
2826 case no_elf_stt_common
:
2827 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
2833 if (bfd_check_format (ibfd
, bfd_archive
))
2835 bfd_boolean force_output_target
;
2838 /* bfd_get_target does not return the correct value until
2839 bfd_check_format succeeds. */
2840 if (output_target
== NULL
)
2842 output_target
= bfd_get_target (ibfd
);
2843 force_output_target
= FALSE
;
2846 force_output_target
= TRUE
;
2848 obfd
= bfd_openw (output_filename
, output_target
);
2851 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2855 /* This is a no-op on non-Coff targets. */
2856 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2858 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2860 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2865 /* bfd_get_target does not return the correct value until
2866 bfd_check_format succeeds. */
2867 if (output_target
== NULL
)
2868 output_target
= bfd_get_target (ibfd
);
2870 obfd
= bfd_openw (output_filename
, output_target
);
2873 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2877 /* This is a no-op on non-Coff targets. */
2878 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2880 if (! copy_object (ibfd
, obfd
, input_arch
))
2883 /* PR 17512: file: 0f15796a.
2884 If the file could not be copied it may not be in a writeable
2885 state. So use bfd_close_all_done to avoid the possibility of
2886 writing uninitialised data into the file. */
2887 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2890 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2894 if (!bfd_close (ibfd
))
2897 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2903 bfd_error_type obj_error
= bfd_get_error ();
2904 bfd_error_type core_error
;
2906 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2908 /* This probably can't happen.. */
2909 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2910 free (obj_matching
);
2914 core_error
= bfd_get_error ();
2915 /* Report the object error in preference to the core error. */
2916 if (obj_error
!= core_error
)
2917 bfd_set_error (obj_error
);
2919 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2921 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2923 list_matching_formats (obj_matching
);
2924 free (obj_matching
);
2926 if (core_error
== bfd_error_file_ambiguously_recognized
)
2928 list_matching_formats (core_matching
);
2929 free (core_matching
);
2936 /* Add a name to the section renaming list. */
2939 add_section_rename (const char * old_name
, const char * new_name
,
2942 section_rename
* srename
;
2944 /* Check for conflicts first. */
2945 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2946 if (strcmp (srename
->old_name
, old_name
) == 0)
2948 /* Silently ignore duplicate definitions. */
2949 if (strcmp (srename
->new_name
, new_name
) == 0
2950 && srename
->flags
== flags
)
2953 fatal (_("Multiple renames of section %s"), old_name
);
2956 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2958 srename
->old_name
= old_name
;
2959 srename
->new_name
= new_name
;
2960 srename
->flags
= flags
;
2961 srename
->next
= section_rename_list
;
2963 section_rename_list
= srename
;
2966 /* Check the section rename list for a new name of the input section
2967 called OLD_NAME. Returns the new name if one is found and sets
2968 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
2971 find_section_rename (const char *old_name
, flagword
*returned_flags
)
2973 const section_rename
*srename
;
2975 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2976 if (strcmp (srename
->old_name
, old_name
) == 0)
2978 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
2979 *returned_flags
= srename
->flags
;
2981 return srename
->new_name
;
2987 /* Once each of the sections is copied, we may still need to do some
2988 finalization work for private section headers. Do that here. */
2991 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
2993 /* Allow the BFD backend to copy any private data it understands
2994 from the input section to the output section. */
2995 if (! bfd_copy_private_header_data (ibfd
, obfd
))
2998 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2999 _("error in private header data"));
3003 /* All went well. */
3007 /* Create a section in OBFD with the same
3008 name and attributes as ISECTION in IBFD. */
3011 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3013 bfd
*obfd
= (bfd
*) obfdarg
;
3014 struct section_list
*p
;
3022 char *prefix
= NULL
;
3023 bfd_boolean make_nobits
;
3025 if (is_strip_section (ibfd
, isection
))
3028 /* Get the, possibly new, name of the output section. */
3029 name
= bfd_section_name (ibfd
, isection
);
3030 flags
= bfd_get_section_flags (ibfd
, isection
);
3031 name
= find_section_rename (name
, &flags
);
3033 /* Prefix sections. */
3034 if ((prefix_alloc_sections_string
)
3035 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3036 prefix
= prefix_alloc_sections_string
;
3037 else if (prefix_sections_string
)
3038 prefix
= prefix_sections_string
;
3044 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3050 make_nobits
= FALSE
;
3052 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3053 SECTION_CONTEXT_SET_FLAGS
);
3055 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3056 else if (strip_symbols
== STRIP_NONDEBUG
3057 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3058 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3060 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3061 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3065 /* Twiddle the input section flags so that it seems to
3066 elf.c:copy_private_bfd_data that section flags have not
3067 changed between input and output sections. This hack
3068 prevents wholesale rewriting of the program headers. */
3069 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3073 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3075 if (osection
== NULL
)
3077 err
= _("failed to create output section");
3082 elf_section_type (osection
) = SHT_NOBITS
;
3084 size
= bfd_section_size (ibfd
, isection
);
3085 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3087 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3088 else if (extract_symbol
)
3090 if (! bfd_set_section_size (obfd
, osection
, size
))
3092 err
= _("failed to set size");
3096 vma
= bfd_section_vma (ibfd
, isection
);
3097 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3098 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3101 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3107 vma
+= change_section_address
;
3109 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3111 err
= _("failed to set vma");
3115 lma
= isection
->lma
;
3116 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3117 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3120 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3126 lma
+= change_section_address
;
3128 osection
->lma
= lma
;
3130 /* FIXME: This is probably not enough. If we change the LMA we
3131 may have to recompute the header for the file as well. */
3132 if (!bfd_set_section_alignment (obfd
,
3134 bfd_section_alignment (ibfd
, isection
)))
3136 err
= _("failed to set alignment");
3140 /* Copy merge entity size. */
3141 osection
->entsize
= isection
->entsize
;
3143 /* Copy compress status. */
3144 osection
->compress_status
= isection
->compress_status
;
3146 /* This used to be mangle_section; we do here to avoid using
3147 bfd_get_section_by_name since some formats allow multiple
3148 sections with the same name. */
3149 isection
->output_section
= osection
;
3150 isection
->output_offset
= 0;
3152 if ((isection
->flags
& SEC_GROUP
) != 0)
3154 asymbol
*gsym
= group_signature (isection
);
3158 gsym
->flags
|= BSF_KEEP
;
3159 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3160 elf_group_id (isection
) = gsym
;
3164 /* Allow the BFD backend to copy any private data it understands
3165 from the input section to the output section. */
3166 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3168 err
= _("failed to copy private data");
3172 /* All went well. */
3177 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3180 /* Return TRUE if input section ISECTION should be skipped. */
3183 skip_section (bfd
*ibfd
, sec_ptr isection
)
3189 /* If we have already failed earlier on,
3190 do not keep on generating complaints now. */
3197 if (is_strip_section (ibfd
, isection
))
3200 if (is_update_section (ibfd
, isection
))
3203 flags
= bfd_get_section_flags (ibfd
, isection
);
3204 if ((flags
& SEC_GROUP
) != 0)
3207 osection
= isection
->output_section
;
3208 size
= bfd_get_section_size (isection
);
3210 if (size
== 0 || osection
== 0)
3216 /* Add section SECTION_PATTERN to the list of sections that will have their
3217 relocations removed. */
3220 handle_remove_relocations_option (const char *section_pattern
)
3222 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
3225 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
3226 otherwise return FALSE. If the user has requested that relocations be
3227 removed from a section that does not have relocations then this
3228 function will still return TRUE. */
3231 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
3233 return (find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3234 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
3237 /* Wrapper for dealing with --remove-section (-R) command line arguments.
3238 A special case is detected here, if the user asks to remove a relocation
3239 section (one starting with ".rela." or ".rel.") then this removal must
3240 be done using a different technique. */
3243 handle_remove_section_option (const char *section_pattern
)
3245 if (strncmp (section_pattern
, ".rela.", 6) == 0)
3246 handle_remove_relocations_option (section_pattern
+ 5);
3247 else if (strncmp (section_pattern
, ".rel.", 5) == 0)
3248 handle_remove_relocations_option (section_pattern
+ 4);
3251 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
3252 sections_removed
= TRUE
;
3256 /* Copy relocations in input section ISECTION of IBFD to an output
3257 section with the same name in OBFDARG. If stripping then don't
3258 copy any relocation info. */
3261 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3263 bfd
*obfd
= (bfd
*) obfdarg
;
3269 if (skip_section (ibfd
, isection
))
3272 osection
= isection
->output_section
;
3274 /* Core files and DWO files do not need to be relocated. */
3275 if (bfd_get_format (obfd
) == bfd_core
3276 || strip_symbols
== STRIP_NONDWO
3277 || discard_relocations (ibfd
, isection
))
3281 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3285 /* Do not complain if the target does not support relocations. */
3286 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3291 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3299 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3300 osection
->flags
&= ~SEC_RELOC
;
3304 relpp
= (arelent
**) xmalloc (relsize
);
3305 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3309 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3310 _("relocation count is negative"));
3314 if (strip_symbols
== STRIP_ALL
)
3316 /* Remove relocations which are not in
3317 keep_strip_specific_list. */
3318 arelent
**temp_relpp
;
3319 long temp_relcount
= 0;
3322 temp_relpp
= (arelent
**) xmalloc (relsize
);
3323 for (i
= 0; i
< relcount
; i
++)
3325 /* PR 17512: file: 9e907e0c. */
3326 if (relpp
[i
]->sym_ptr_ptr
3328 && * relpp
[i
]->sym_ptr_ptr
)
3329 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3330 keep_specific_htab
))
3331 temp_relpp
[temp_relcount
++] = relpp
[i
];
3333 relcount
= temp_relcount
;
3338 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3341 osection
->flags
&= ~SEC_RELOC
;
3347 /* Copy the data of input section ISECTION of IBFD
3348 to an output section with the same name in OBFD. */
3351 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3353 bfd
*obfd
= (bfd
*) obfdarg
;
3354 struct section_list
*p
;
3358 if (skip_section (ibfd
, isection
))
3361 osection
= isection
->output_section
;
3362 /* The output SHF_COMPRESSED section size is different from input if
3363 ELF classes of input and output aren't the same. We can't use
3364 the output section size since --interleave will shrink the output
3365 section. Size will be updated if the section is converted. */
3366 size
= bfd_get_section_size (isection
);
3368 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3369 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3371 bfd_byte
*memhunk
= NULL
;
3373 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3374 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3378 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3384 /* We don't handle leftover bytes (too many possible behaviors,
3385 and we don't know what the user wants). The section length
3386 must be a multiple of the number of bytes to swap. */
3387 if ((size
% reverse_bytes
) == 0)
3392 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3393 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3395 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3398 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3399 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3403 /* User must pad the section up in order to do this. */
3404 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3405 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3410 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3411 char *from
= (char *) memhunk
+ copy_byte
;
3412 char *to
= (char *) memhunk
;
3413 char *end
= (char *) memhunk
+ size
;
3416 for (; from
< end
; from
+= interleave
)
3417 for (i
= 0; i
< copy_width
; i
++)
3419 if (&from
[i
] >= end
)
3424 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3425 osection
->lma
/= interleave
;
3428 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3431 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3436 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3437 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3438 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3440 void *memhunk
= xmalloc (size
);
3442 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3443 flag--they can just remove the section entirely and add it
3444 back again. However, we do permit them to turn on the
3445 SEC_HAS_CONTENTS flag, and take it to mean that the section
3446 contents should be zeroed out. */
3448 memset (memhunk
, 0, size
);
3449 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3452 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3459 /* Get all the sections. This is used when --gap-fill or --pad-to is
3463 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3465 asection
***secppp
= (asection
***) secppparg
;
3467 **secppp
= osection
;
3471 /* Sort sections by VMA. This is called via qsort, and is used when
3472 --gap-fill or --pad-to is used. We force non loadable or empty
3473 sections to the front, where they are easier to ignore. */
3476 compare_section_lma (const void *arg1
, const void *arg2
)
3478 const asection
*const *sec1
= (const asection
* const *) arg1
;
3479 const asection
*const *sec2
= (const asection
* const *) arg2
;
3480 flagword flags1
, flags2
;
3482 /* Sort non loadable sections to the front. */
3483 flags1
= (*sec1
)->flags
;
3484 flags2
= (*sec2
)->flags
;
3485 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3486 || (flags1
& SEC_LOAD
) == 0)
3488 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3489 && (flags2
& SEC_LOAD
) != 0)
3494 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3495 || (flags2
& SEC_LOAD
) == 0)
3499 /* Sort sections by LMA. */
3500 if ((*sec1
)->lma
> (*sec2
)->lma
)
3502 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3505 /* Sort sections with the same LMA by size. */
3506 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3508 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3514 /* Mark all the symbols which will be used in output relocations with
3515 the BSF_KEEP flag so that those symbols will not be stripped.
3517 Ignore relocations which will not appear in the output file. */
3520 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3522 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3527 /* Ignore an input section with no corresponding output section. */
3528 if (isection
->output_section
== NULL
)
3531 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3534 /* Do not complain if the target does not support relocations. */
3535 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3537 bfd_fatal (bfd_get_filename (ibfd
));
3543 relpp
= (arelent
**) xmalloc (relsize
);
3544 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3546 bfd_fatal (bfd_get_filename (ibfd
));
3548 /* Examine each symbol used in a relocation. If it's not one of the
3549 special bfd section symbols, then mark it with BSF_KEEP. */
3550 for (i
= 0; i
< relcount
; i
++)
3552 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3553 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3554 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3555 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3562 /* Write out debugging information. */
3565 write_debugging_info (bfd
*obfd
, void *dhandle
,
3566 long *symcountp ATTRIBUTE_UNUSED
,
3567 asymbol
***symppp ATTRIBUTE_UNUSED
)
3569 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3570 return write_ieee_debugging_info (obfd
, dhandle
);
3572 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3573 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3575 bfd_byte
*syms
, *strings
;
3576 bfd_size_type symsize
, stringsize
;
3577 asection
*stabsec
, *stabstrsec
;
3580 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3585 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3586 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3587 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3589 || stabstrsec
== NULL
3590 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3591 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3592 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3593 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3595 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3596 _("can't create debugging section"));
3600 /* We can get away with setting the section contents now because
3601 the next thing the caller is going to do is copy over the
3602 real sections. We may someday have to split the contents
3603 setting out of this function. */
3604 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3605 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3608 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3609 _("can't set debugging section contents"));
3616 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3617 _("don't know how to write debugging information for %s"),
3618 bfd_get_target (obfd
));
3622 /* If neither -D nor -U was specified explicitly,
3623 then use the configured default. */
3625 default_deterministic (void)
3627 if (deterministic
< 0)
3628 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3632 strip_main (int argc
, char *argv
[])
3634 char *input_target
= NULL
;
3635 char *output_target
= NULL
;
3636 bfd_boolean show_version
= FALSE
;
3637 bfd_boolean formats_info
= FALSE
;
3640 char *output_file
= NULL
;
3642 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3643 strip_options
, (int *) 0)) != EOF
)
3648 input_target
= optarg
;
3651 output_target
= optarg
;
3654 input_target
= output_target
= optarg
;
3657 handle_remove_section_option (optarg
);
3659 case OPTION_REMOVE_RELOCS
:
3660 handle_remove_relocations_option (optarg
);
3663 strip_symbols
= STRIP_ALL
;
3667 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3668 strip_symbols
= STRIP_DEBUG
;
3670 case OPTION_STRIP_DWO
:
3671 strip_symbols
= STRIP_DWO
;
3673 case OPTION_STRIP_UNNEEDED
:
3674 strip_symbols
= STRIP_UNNEEDED
;
3677 add_specific_symbol (optarg
, keep_specific_htab
);
3680 add_specific_symbol (optarg
, strip_specific_htab
);
3683 output_file
= optarg
;
3686 preserve_dates
= TRUE
;
3689 deterministic
= TRUE
;
3692 deterministic
= FALSE
;
3695 discard_locals
= LOCALS_ALL
;
3698 discard_locals
= LOCALS_START_L
;
3704 show_version
= TRUE
;
3706 case OPTION_FORMATS_INFO
:
3707 formats_info
= TRUE
;
3709 case OPTION_ONLY_KEEP_DEBUG
:
3710 strip_symbols
= STRIP_NONDEBUG
;
3712 case OPTION_KEEP_FILE_SYMBOLS
:
3713 keep_file_symbols
= 1;
3716 /* We've been given a long option. */
3723 strip_usage (stdout
, 0);
3725 strip_usage (stderr
, 1);
3736 print_version ("strip");
3738 default_deterministic ();
3740 /* Default is to strip all symbols. */
3741 if (strip_symbols
== STRIP_UNDEF
3742 && discard_locals
== LOCALS_UNDEF
3743 && htab_elements (strip_specific_htab
) == 0)
3744 strip_symbols
= STRIP_ALL
;
3746 if (output_target
== NULL
)
3747 output_target
= input_target
;
3751 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3752 strip_usage (stderr
, 1);
3754 for (; i
< argc
; i
++)
3756 int hold_status
= status
;
3757 struct stat statbuf
;
3760 if (get_file_size (argv
[i
]) < 1)
3767 /* No need to check the return value of stat().
3768 It has already been checked in get_file_size(). */
3769 stat (argv
[i
], &statbuf
);
3771 if (output_file
== NULL
3772 || filename_cmp (argv
[i
], output_file
) == 0)
3773 tmpname
= make_tempname (argv
[i
]);
3775 tmpname
= output_file
;
3777 if (tmpname
== NULL
)
3779 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3780 _("could not create temporary file to hold stripped copy"));
3786 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3790 set_times (tmpname
, &statbuf
);
3791 if (output_file
!= tmpname
)
3792 status
= (smart_rename (tmpname
,
3793 output_file
? output_file
: argv
[i
],
3794 preserve_dates
) != 0);
3796 status
= hold_status
;
3799 unlink_if_ordinary (tmpname
);
3800 if (output_file
!= tmpname
)
3807 /* Set up PE subsystem. */
3810 set_pe_subsystem (const char *s
)
3812 const char *version
, *subsystem
;
3822 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3823 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3824 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3825 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3826 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3827 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3828 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3829 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3830 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3831 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3837 /* Check for the presence of a version number. */
3838 version
= strchr (s
, ':');
3839 if (version
== NULL
)
3843 int len
= version
- s
;
3847 version
= copy
+ 1 + len
;
3848 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3850 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3852 non_fatal (_("%s: bad version in PE subsystem"), s
);
3855 /* Check for numeric subsystem. */
3856 value
= (short) strtol (subsystem
, ©
, 0);
3859 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3860 if (v
[i
].value
== value
)
3862 pe_subsystem
= value
;
3863 set_def
= v
[i
].set_def
;
3869 /* Search for subsystem by name. */
3870 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3871 if (strcmp (subsystem
, v
[i
].name
) == 0)
3873 pe_subsystem
= v
[i
].value
;
3874 set_def
= v
[i
].set_def
;
3882 fatal (_("unknown PE subsystem: %s"), s
);
3887 if (pe_file_alignment
== (bfd_vma
) -1)
3888 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3889 if (pe_section_alignment
== (bfd_vma
) -1)
3890 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3894 free ((char *) subsystem
);
3897 /* Convert EFI target to PEI target. */
3900 convert_efi_target (char *efi
)
3906 if (strcmp (efi
+ 4, "ia32") == 0)
3908 /* Change ia32 to i386. */
3913 else if (strcmp (efi
+ 4, "x86_64") == 0)
3915 /* Change x86_64 to x86-64. */
3920 /* Allocate and return a pointer to a struct section_add, initializing the
3921 structure using ARG, a string in the format "sectionname=filename".
3922 The returned structure will have its next pointer set to NEXT. The
3923 OPTION field is the name of the command line option currently being
3924 parsed, and is only used if an error needs to be reported. */
3926 static struct section_add
*
3927 init_section_add (const char *arg
,
3928 struct section_add
*next
,
3931 struct section_add
*pa
;
3934 s
= strchr (arg
, '=');
3936 fatal (_("bad format for %s"), option
);
3938 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3939 pa
->name
= xstrndup (arg
, s
- arg
);
3940 pa
->filename
= s
+ 1;
3942 pa
->contents
= NULL
;
3948 /* Load the file specified in PA, allocating memory to hold the file
3949 contents, and store a pointer to the allocated memory in the contents
3950 field of PA. The size field of PA is also updated. All errors call
3954 section_add_load_file (struct section_add
*pa
)
3959 /* We don't use get_file_size so that we can do
3960 --add-section .note.GNU_stack=/dev/null
3961 get_file_size doesn't work on /dev/null. */
3963 f
= fopen (pa
->filename
, FOPEN_RB
);
3965 fatal (_("cannot open: %s: %s"),
3966 pa
->filename
, strerror (errno
));
3970 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3978 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3981 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3983 fatal (_("%s: fread failed"), pa
->filename
);
3994 copy_main (int argc
, char *argv
[])
3996 char *input_filename
= NULL
;
3997 char *output_filename
= NULL
;
3999 char *input_target
= NULL
;
4000 char *output_target
= NULL
;
4001 bfd_boolean show_version
= FALSE
;
4002 bfd_boolean change_warn
= TRUE
;
4003 bfd_boolean formats_info
= FALSE
;
4005 struct stat statbuf
;
4006 const bfd_arch_info_type
*input_arch
= NULL
;
4008 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
4009 copy_options
, (int *) 0)) != EOF
)
4014 copy_byte
= atoi (optarg
);
4016 fatal (_("byte number must be non-negative"));
4020 input_arch
= bfd_scan_arch (optarg
);
4021 if (input_arch
== NULL
)
4022 fatal (_("architecture %s unknown"), optarg
);
4028 interleave
= atoi (optarg
);
4030 fatal (_("interleave must be positive"));
4036 case OPTION_INTERLEAVE_WIDTH
:
4037 copy_width
= atoi (optarg
);
4039 fatal(_("interleave width must be positive"));
4043 case 's': /* "source" - 'I' is preferred */
4044 input_target
= optarg
;
4048 case 'd': /* "destination" - 'O' is preferred */
4049 output_target
= optarg
;
4053 input_target
= output_target
= optarg
;
4057 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
4058 sections_copied
= TRUE
;
4062 handle_remove_section_option (optarg
);
4065 case OPTION_REMOVE_RELOCS
:
4066 handle_remove_relocations_option (optarg
);
4070 strip_symbols
= STRIP_ALL
;
4074 strip_symbols
= STRIP_DEBUG
;
4077 case OPTION_STRIP_DWO
:
4078 strip_symbols
= STRIP_DWO
;
4081 case OPTION_STRIP_UNNEEDED
:
4082 strip_symbols
= STRIP_UNNEEDED
;
4085 case OPTION_ONLY_KEEP_DEBUG
:
4086 strip_symbols
= STRIP_NONDEBUG
;
4089 case OPTION_KEEP_FILE_SYMBOLS
:
4090 keep_file_symbols
= 1;
4093 case OPTION_ADD_GNU_DEBUGLINK
:
4094 long_section_names
= ENABLE
;
4095 gnu_debuglink_filename
= optarg
;
4099 add_specific_symbol (optarg
, keep_specific_htab
);
4103 add_specific_symbol (optarg
, strip_specific_htab
);
4106 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4107 add_specific_symbol (optarg
, strip_unneeded_htab
);
4111 add_specific_symbol (optarg
, localize_specific_htab
);
4114 case OPTION_GLOBALIZE_SYMBOL
:
4115 add_specific_symbol (optarg
, globalize_specific_htab
);
4119 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4123 add_specific_symbol (optarg
, weaken_specific_htab
);
4127 preserve_dates
= TRUE
;
4131 deterministic
= TRUE
;
4135 deterministic
= FALSE
;
4143 discard_locals
= LOCALS_ALL
;
4147 discard_locals
= LOCALS_START_L
;
4155 show_version
= TRUE
;
4158 case OPTION_FORMATS_INFO
:
4159 formats_info
= TRUE
;
4166 case OPTION_ADD_SECTION
:
4167 add_sections
= init_section_add (optarg
, add_sections
,
4169 section_add_load_file (add_sections
);
4172 case OPTION_UPDATE_SECTION
:
4173 update_sections
= init_section_add (optarg
, update_sections
,
4174 "--update-section");
4175 section_add_load_file (update_sections
);
4178 case OPTION_DUMP_SECTION
:
4179 dump_sections
= init_section_add (optarg
, dump_sections
,
4183 case OPTION_ADD_SYMBOL
:
4186 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4188 newsym
->next
= NULL
;
4189 s
= strchr (optarg
, '=');
4191 fatal (_("bad format for %s"), "--add-symbol");
4192 t
= strchr (s
+ 1, ':');
4194 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4197 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4198 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4202 newsym
->section
= NULL
;
4203 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4207 t
= strchr (t
+ 1, ',');
4208 newsym
->othersym
= NULL
;
4210 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4212 newsym
->flags
= BSF_GLOBAL
;
4214 /* Keep 'othersym' symbols at the front of the list. */
4215 if (newsym
->othersym
)
4217 newsym
->next
= add_sym_list
;
4219 add_sym_tail
= &newsym
->next
;
4220 add_sym_list
= newsym
;
4224 *add_sym_tail
= newsym
;
4225 add_sym_tail
= &newsym
->next
;
4231 case OPTION_CHANGE_START
:
4232 change_start
= parse_vma (optarg
, "--change-start");
4235 case OPTION_CHANGE_SECTION_ADDRESS
:
4236 case OPTION_CHANGE_SECTION_LMA
:
4237 case OPTION_CHANGE_SECTION_VMA
:
4239 struct section_list
* p
;
4240 unsigned int context
= 0;
4244 char *option
= NULL
;
4249 case OPTION_CHANGE_SECTION_ADDRESS
:
4250 option
= "--change-section-address";
4251 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4253 case OPTION_CHANGE_SECTION_LMA
:
4254 option
= "--change-section-lma";
4255 context
= SECTION_CONTEXT_ALTER_LMA
;
4257 case OPTION_CHANGE_SECTION_VMA
:
4258 option
= "--change-section-vma";
4259 context
= SECTION_CONTEXT_ALTER_VMA
;
4263 s
= strchr (optarg
, '=');
4266 s
= strchr (optarg
, '+');
4269 s
= strchr (optarg
, '-');
4271 fatal (_("bad format for %s"), option
);
4276 /* Correct the context. */
4279 case OPTION_CHANGE_SECTION_ADDRESS
:
4280 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4282 case OPTION_CHANGE_SECTION_LMA
:
4283 context
= SECTION_CONTEXT_SET_LMA
;
4285 case OPTION_CHANGE_SECTION_VMA
:
4286 context
= SECTION_CONTEXT_SET_VMA
;
4292 name
= (char *) xmalloc (len
+ 1);
4293 strncpy (name
, optarg
, len
);
4296 p
= find_section_list (name
, TRUE
, context
);
4298 val
= parse_vma (s
+ 1, option
);
4304 case OPTION_CHANGE_SECTION_ADDRESS
:
4308 case OPTION_CHANGE_SECTION_LMA
:
4312 case OPTION_CHANGE_SECTION_VMA
:
4319 case OPTION_CHANGE_ADDRESSES
:
4320 change_section_address
= parse_vma (optarg
, "--change-addresses");
4321 change_start
= change_section_address
;
4324 case OPTION_CHANGE_WARNINGS
:
4328 case OPTION_CHANGE_LEADING_CHAR
:
4329 change_leading_char
= TRUE
;
4332 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4335 if (strcasecmp (optarg
, "none") == 0)
4336 do_debug_sections
= decompress
;
4337 else if (strcasecmp (optarg
, "zlib") == 0)
4338 do_debug_sections
= compress_zlib
;
4339 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4340 do_debug_sections
= compress_gnu_zlib
;
4341 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4342 do_debug_sections
= compress_gabi_zlib
;
4344 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4348 do_debug_sections
= compress
;
4351 case OPTION_DEBUGGING
:
4352 convert_debugging
= TRUE
;
4355 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4356 do_debug_sections
= decompress
;
4359 case OPTION_ELF_STT_COMMON
:
4360 if (strcasecmp (optarg
, "yes") == 0)
4361 do_elf_stt_common
= elf_stt_common
;
4362 else if (strcasecmp (optarg
, "no") == 0)
4363 do_elf_stt_common
= no_elf_stt_common
;
4365 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4369 case OPTION_GAP_FILL
:
4371 bfd_vma gap_fill_vma
;
4373 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4374 gap_fill
= (bfd_byte
) gap_fill_vma
;
4375 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4379 sprintf_vma (buff
, gap_fill_vma
);
4381 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4384 gap_fill_set
= TRUE
;
4388 case OPTION_NO_CHANGE_WARNINGS
:
4389 change_warn
= FALSE
;
4393 pad_to
= parse_vma (optarg
, "--pad-to");
4397 case OPTION_REMOVE_LEADING_CHAR
:
4398 remove_leading_char
= TRUE
;
4401 case OPTION_REDEFINE_SYM
:
4403 /* Push this redefinition onto redefine_symbol_list. */
4407 const char *nextarg
;
4408 char *source
, *target
;
4410 s
= strchr (optarg
, '=');
4412 fatal (_("bad format for %s"), "--redefine-sym");
4415 source
= (char *) xmalloc (len
+ 1);
4416 strncpy (source
, optarg
, len
);
4420 len
= strlen (nextarg
);
4421 target
= (char *) xmalloc (len
+ 1);
4422 strcpy (target
, nextarg
);
4424 redefine_list_append ("--redefine-sym", source
, target
);
4431 case OPTION_REDEFINE_SYMS
:
4432 add_redefine_syms_file (optarg
);
4435 case OPTION_SET_SECTION_FLAGS
:
4437 struct section_list
*p
;
4442 s
= strchr (optarg
, '=');
4444 fatal (_("bad format for %s"), "--set-section-flags");
4447 name
= (char *) xmalloc (len
+ 1);
4448 strncpy (name
, optarg
, len
);
4451 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4453 p
->flags
= parse_flags (s
+ 1);
4457 case OPTION_RENAME_SECTION
:
4460 const char *eq
, *fl
;
4465 eq
= strchr (optarg
, '=');
4467 fatal (_("bad format for %s"), "--rename-section");
4471 fatal (_("bad format for %s"), "--rename-section");
4473 old_name
= (char *) xmalloc (len
+ 1);
4474 strncpy (old_name
, optarg
, len
);
4478 fl
= strchr (eq
, ',');
4481 flags
= parse_flags (fl
+ 1);
4491 fatal (_("bad format for %s"), "--rename-section");
4493 new_name
= (char *) xmalloc (len
+ 1);
4494 strncpy (new_name
, eq
, len
);
4497 add_section_rename (old_name
, new_name
, flags
);
4501 case OPTION_SET_START
:
4502 set_start
= parse_vma (optarg
, "--set-start");
4503 set_start_set
= TRUE
;
4506 case OPTION_SREC_LEN
:
4507 Chunk
= parse_vma (optarg
, "--srec-len");
4510 case OPTION_SREC_FORCES3
:
4514 case OPTION_STRIP_SYMBOLS
:
4515 add_specific_symbols (optarg
, strip_specific_htab
);
4518 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4519 add_specific_symbols (optarg
, strip_unneeded_htab
);
4522 case OPTION_KEEP_SYMBOLS
:
4523 add_specific_symbols (optarg
, keep_specific_htab
);
4526 case OPTION_LOCALIZE_HIDDEN
:
4527 localize_hidden
= TRUE
;
4530 case OPTION_LOCALIZE_SYMBOLS
:
4531 add_specific_symbols (optarg
, localize_specific_htab
);
4534 case OPTION_LONG_SECTION_NAMES
:
4535 if (!strcmp ("enable", optarg
))
4536 long_section_names
= ENABLE
;
4537 else if (!strcmp ("disable", optarg
))
4538 long_section_names
= DISABLE
;
4539 else if (!strcmp ("keep", optarg
))
4540 long_section_names
= KEEP
;
4542 fatal (_("unknown long section names option '%s'"), optarg
);
4545 case OPTION_GLOBALIZE_SYMBOLS
:
4546 add_specific_symbols (optarg
, globalize_specific_htab
);
4549 case OPTION_KEEPGLOBAL_SYMBOLS
:
4550 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4553 case OPTION_WEAKEN_SYMBOLS
:
4554 add_specific_symbols (optarg
, weaken_specific_htab
);
4557 case OPTION_ALT_MACH_CODE
:
4558 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4559 if (use_alt_mach_code
== 0)
4560 fatal (_("unable to parse alternative machine code"));
4563 case OPTION_PREFIX_SYMBOLS
:
4564 prefix_symbols_string
= optarg
;
4567 case OPTION_PREFIX_SECTIONS
:
4568 prefix_sections_string
= optarg
;
4571 case OPTION_PREFIX_ALLOC_SECTIONS
:
4572 prefix_alloc_sections_string
= optarg
;
4575 case OPTION_READONLY_TEXT
:
4576 bfd_flags_to_set
|= WP_TEXT
;
4577 bfd_flags_to_clear
&= ~WP_TEXT
;
4580 case OPTION_WRITABLE_TEXT
:
4581 bfd_flags_to_clear
|= WP_TEXT
;
4582 bfd_flags_to_set
&= ~WP_TEXT
;
4586 bfd_flags_to_set
|= D_PAGED
;
4587 bfd_flags_to_clear
&= ~D_PAGED
;
4591 bfd_flags_to_clear
|= D_PAGED
;
4592 bfd_flags_to_set
&= ~D_PAGED
;
4595 case OPTION_EXTRACT_DWO
:
4596 strip_symbols
= STRIP_NONDWO
;
4599 case OPTION_EXTRACT_SYMBOL
:
4600 extract_symbol
= TRUE
;
4603 case OPTION_REVERSE_BYTES
:
4605 int prev
= reverse_bytes
;
4607 reverse_bytes
= atoi (optarg
);
4608 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4609 fatal (_("number of bytes to reverse must be positive and even"));
4611 if (prev
&& prev
!= reverse_bytes
)
4612 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4617 case OPTION_FILE_ALIGNMENT
:
4618 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4624 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4626 || (*end
!= '.' && *end
!= '\0'))
4627 non_fatal (_("%s: invalid reserve value for --heap"),
4629 else if (*end
!= '\0')
4631 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4633 non_fatal (_("%s: invalid commit value for --heap"),
4639 case OPTION_IMAGE_BASE
:
4640 pe_image_base
= parse_vma (optarg
, "--image-base");
4643 case OPTION_SECTION_ALIGNMENT
:
4644 pe_section_alignment
= parse_vma (optarg
,
4645 "--section-alignment");
4648 case OPTION_SUBSYSTEM
:
4649 set_pe_subsystem (optarg
);
4655 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4657 || (*end
!= '.' && *end
!= '\0'))
4658 non_fatal (_("%s: invalid reserve value for --stack"),
4660 else if (*end
!= '\0')
4662 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4664 non_fatal (_("%s: invalid commit value for --stack"),
4671 /* We've been given a long option. */
4676 copy_usage (stdout
, 0);
4679 copy_usage (stderr
, 1);
4690 print_version ("objcopy");
4692 if (interleave
&& copy_byte
== -1)
4693 fatal (_("interleave start byte must be set with --byte"));
4695 if (copy_byte
>= interleave
)
4696 fatal (_("byte number must be less than interleave"));
4698 if (copy_width
> interleave
- copy_byte
)
4699 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4701 if (optind
== argc
|| optind
+ 2 < argc
)
4702 copy_usage (stderr
, 1);
4704 input_filename
= argv
[optind
];
4705 if (optind
+ 1 < argc
)
4706 output_filename
= argv
[optind
+ 1];
4708 default_deterministic ();
4710 /* Default is to strip no symbols. */
4711 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4712 strip_symbols
= STRIP_NONE
;
4714 if (output_target
== NULL
)
4715 output_target
= input_target
;
4717 /* Convert input EFI target to PEI target. */
4718 if (input_target
!= NULL
4719 && strncmp (input_target
, "efi-", 4) == 0)
4723 efi
= xstrdup (output_target
+ 4);
4724 if (strncmp (efi
, "bsdrv-", 6) == 0
4725 || strncmp (efi
, "rtdrv-", 6) == 0)
4727 else if (strncmp (efi
, "app-", 4) != 0)
4728 fatal (_("unknown input EFI target: %s"), input_target
);
4731 convert_efi_target (efi
);
4734 /* Convert output EFI target to PEI target. */
4735 if (output_target
!= NULL
4736 && strncmp (output_target
, "efi-", 4) == 0)
4740 efi
= xstrdup (output_target
+ 4);
4741 if (strncmp (efi
, "app-", 4) == 0)
4743 if (pe_subsystem
== -1)
4744 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4746 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4748 if (pe_subsystem
== -1)
4749 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4752 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4754 if (pe_subsystem
== -1)
4755 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4759 fatal (_("unknown output EFI target: %s"), output_target
);
4761 if (pe_file_alignment
== (bfd_vma
) -1)
4762 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4763 if (pe_section_alignment
== (bfd_vma
) -1)
4764 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4766 output_target
= efi
;
4767 convert_efi_target (efi
);
4771 if (stat (input_filename
, & statbuf
) < 0)
4772 fatal (_("warning: could not locate '%s'. System error message: %s"),
4773 input_filename
, strerror (errno
));
4775 /* If there is no destination file, or the source and destination files
4776 are the same, then create a temp and rename the result into the input. */
4777 if (output_filename
== NULL
4778 || filename_cmp (input_filename
, output_filename
) == 0)
4779 tmpname
= make_tempname (input_filename
);
4781 tmpname
= output_filename
;
4783 if (tmpname
== NULL
)
4784 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4785 input_filename
, strerror (errno
));
4787 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4791 set_times (tmpname
, &statbuf
);
4792 if (tmpname
!= output_filename
)
4793 status
= (smart_rename (tmpname
, input_filename
,
4794 preserve_dates
) != 0);
4797 unlink_if_ordinary (tmpname
);
4801 struct section_list
*p
;
4803 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4807 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4811 sprintf_vma (buff
, p
->vma_val
);
4813 /* xgettext:c-format */
4814 non_fatal (_("%s %s%c0x%s never used"),
4815 "--change-section-vma",
4817 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4821 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4825 sprintf_vma (buff
, p
->lma_val
);
4827 /* xgettext:c-format */
4828 non_fatal (_("%s %s%c0x%s never used"),
4829 "--change-section-lma",
4831 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4842 main (int argc
, char *argv
[])
4844 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4845 setlocale (LC_MESSAGES
, "");
4847 #if defined (HAVE_SETLOCALE)
4848 setlocale (LC_CTYPE
, "");
4850 bindtextdomain (PACKAGE
, LOCALEDIR
);
4851 textdomain (PACKAGE
);
4853 program_name
= argv
[0];
4854 xmalloc_set_program_name (program_name
);
4856 START_PROGRESS (program_name
, 0);
4858 expandargv (&argc
, &argv
);
4860 strip_symbols
= STRIP_UNDEF
;
4861 discard_locals
= LOCALS_UNDEF
;
4864 set_default_bfd_target ();
4868 int i
= strlen (program_name
);
4869 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4870 /* Drop the .exe suffix, if any. */
4871 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4874 program_name
[i
] = '\0';
4877 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4880 create_symbol_htabs ();
4883 bfd_set_error_program_name (argv
[0]);
4886 strip_main (argc
, argv
);
4888 copy_main (argc
, argv
);
4890 END_PROGRESS (program_name
);