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. */
143 bfd_vma vma_val
; /* Amount to change by or set to. */
144 bfd_vma lma_val
; /* Amount to change by or set to. */
145 flagword flags
; /* What to set the section flags to. */
148 static struct section_list
*change_sections
;
150 /* TRUE if some sections are to be removed. */
151 static bfd_boolean sections_removed
;
153 /* TRUE if only some sections are to be copied. */
154 static bfd_boolean sections_copied
;
156 /* Changes to the start address. */
157 static bfd_vma change_start
= 0;
158 static bfd_boolean set_start_set
= FALSE
;
159 static bfd_vma set_start
;
161 /* Changes to section addresses. */
162 static bfd_vma change_section_address
= 0;
164 /* Filling gaps between sections. */
165 static bfd_boolean gap_fill_set
= FALSE
;
166 static bfd_byte gap_fill
= 0;
168 /* Pad to a given address. */
169 static bfd_boolean pad_to_set
= FALSE
;
170 static bfd_vma pad_to
;
172 /* Use alternative machine code? */
173 static unsigned long use_alt_mach_code
= 0;
175 /* Output BFD flags user wants to set or clear */
176 static flagword bfd_flags_to_set
;
177 static flagword bfd_flags_to_clear
;
179 /* List of sections to add. */
182 /* Next section to add. */
183 struct section_add
*next
;
184 /* Name of section to add. */
186 /* Name of file holding section contents. */
187 const char *filename
;
190 /* Contents of file. */
192 /* BFD section, after it has been added. */
196 /* List of sections to add to the output BFD. */
197 static struct section_add
*add_sections
;
199 /* List of sections to update in the output BFD. */
200 static struct section_add
*update_sections
;
202 /* List of sections to dump from the output BFD. */
203 static struct section_add
*dump_sections
;
205 /* If non-NULL the argument to --add-gnu-debuglink.
206 This should be the filename to store in the .gnu_debuglink section. */
207 static const char * gnu_debuglink_filename
= NULL
;
209 /* Whether to convert debugging information. */
210 static bfd_boolean convert_debugging
= FALSE
;
212 /* Whether to compress/decompress DWARF debug sections. */
217 compress_zlib
= compress
| 1 << 1,
218 compress_gnu_zlib
= compress
| 1 << 2,
219 compress_gabi_zlib
= compress
| 1 << 3,
221 } do_debug_sections
= nothing
;
223 /* Whether to generate ELF common symbols with the STT_COMMON type. */
224 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
226 /* Whether to change the leading character in symbol names. */
227 static bfd_boolean change_leading_char
= FALSE
;
229 /* Whether to remove the leading character from global symbol names. */
230 static bfd_boolean remove_leading_char
= FALSE
;
232 /* Whether to permit wildcard in symbol comparison. */
233 static bfd_boolean wildcard
= FALSE
;
235 /* True if --localize-hidden is in effect. */
236 static bfd_boolean localize_hidden
= FALSE
;
238 /* List of symbols to strip, keep, localize, keep-global, weaken,
240 static htab_t strip_specific_htab
= NULL
;
241 static htab_t strip_unneeded_htab
= NULL
;
242 static htab_t keep_specific_htab
= NULL
;
243 static htab_t localize_specific_htab
= NULL
;
244 static htab_t globalize_specific_htab
= NULL
;
245 static htab_t keepglobal_specific_htab
= NULL
;
246 static htab_t weaken_specific_htab
= NULL
;
247 static struct redefine_node
*redefine_sym_list
= NULL
;
248 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
249 static int add_symbols
= 0;
251 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
252 static bfd_boolean weaken
= FALSE
;
254 /* If this is TRUE, we retain BSF_FILE symbols. */
255 static bfd_boolean keep_file_symbols
= FALSE
;
257 /* Prefix symbols/sections. */
258 static char *prefix_symbols_string
= 0;
259 static char *prefix_sections_string
= 0;
260 static char *prefix_alloc_sections_string
= 0;
262 /* True if --extract-symbol was passed on the command line. */
263 static bfd_boolean extract_symbol
= FALSE
;
265 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
266 of <reverse_bytes> bytes within each output section. */
267 static int reverse_bytes
= 0;
269 /* For Coff objects, we may want to allow or disallow long section names,
270 or preserve them where found in the inputs. Debug info relies on them. */
271 enum long_section_name_handling
278 /* The default long section handling mode is to preserve them.
279 This is also the only behaviour for 'strip'. */
280 static enum long_section_name_handling long_section_names
= KEEP
;
282 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
283 enum command_line_switch
285 OPTION_ADD_SECTION
=150,
286 OPTION_ADD_GNU_DEBUGLINK
,
288 OPTION_ALT_MACH_CODE
,
289 OPTION_CHANGE_ADDRESSES
,
290 OPTION_CHANGE_LEADING_CHAR
,
291 OPTION_CHANGE_SECTION_ADDRESS
,
292 OPTION_CHANGE_SECTION_LMA
,
293 OPTION_CHANGE_SECTION_VMA
,
295 OPTION_CHANGE_WARNINGS
,
296 OPTION_COMPRESS_DEBUG_SECTIONS
,
298 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
300 OPTION_ELF_STT_COMMON
,
302 OPTION_EXTRACT_SYMBOL
,
303 OPTION_FILE_ALIGNMENT
,
306 OPTION_GLOBALIZE_SYMBOL
,
307 OPTION_GLOBALIZE_SYMBOLS
,
311 OPTION_INTERLEAVE_WIDTH
,
312 OPTION_KEEPGLOBAL_SYMBOLS
,
313 OPTION_KEEP_FILE_SYMBOLS
,
315 OPTION_LOCALIZE_HIDDEN
,
316 OPTION_LOCALIZE_SYMBOLS
,
317 OPTION_LONG_SECTION_NAMES
,
318 OPTION_NO_CHANGE_WARNINGS
,
319 OPTION_ONLY_KEEP_DEBUG
,
321 OPTION_PREFIX_ALLOC_SECTIONS
,
322 OPTION_PREFIX_SECTIONS
,
323 OPTION_PREFIX_SYMBOLS
,
325 OPTION_READONLY_TEXT
,
327 OPTION_REDEFINE_SYMS
,
328 OPTION_REMOVE_LEADING_CHAR
,
329 OPTION_RENAME_SECTION
,
330 OPTION_REVERSE_BYTES
,
331 OPTION_SECTION_ALIGNMENT
,
332 OPTION_SET_SECTION_FLAGS
,
338 OPTION_STRIP_SYMBOLS
,
339 OPTION_STRIP_UNNEEDED
,
340 OPTION_STRIP_UNNEEDED_SYMBOL
,
341 OPTION_STRIP_UNNEEDED_SYMBOLS
,
343 OPTION_UPDATE_SECTION
,
345 OPTION_WEAKEN_SYMBOLS
,
349 /* Options to handle if running as "strip". */
351 static struct option strip_options
[] =
353 {"disable-deterministic-archives", no_argument
, 0, 'U'},
354 {"discard-all", no_argument
, 0, 'x'},
355 {"discard-locals", no_argument
, 0, 'X'},
356 {"enable-deterministic-archives", no_argument
, 0, 'D'},
357 {"format", required_argument
, 0, 'F'}, /* Obsolete */
358 {"help", no_argument
, 0, 'h'},
359 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
360 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
361 {"input-target", required_argument
, 0, 'I'},
362 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
363 {"keep-symbol", required_argument
, 0, 'K'},
364 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
365 {"output-file", required_argument
, 0, 'o'},
366 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
367 {"output-target", required_argument
, 0, 'O'},
368 {"preserve-dates", no_argument
, 0, 'p'},
369 {"remove-section", required_argument
, 0, 'R'},
370 {"strip-all", no_argument
, 0, 's'},
371 {"strip-debug", no_argument
, 0, 'S'},
372 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
373 {"strip-symbol", required_argument
, 0, 'N'},
374 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
375 {"target", required_argument
, 0, 'F'},
376 {"verbose", no_argument
, 0, 'v'},
377 {"version", no_argument
, 0, 'V'},
378 {"wildcard", no_argument
, 0, 'w'},
379 {0, no_argument
, 0, 0}
382 /* Options to handle if running as "objcopy". */
384 static struct option copy_options
[] =
386 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
387 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
388 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
389 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
390 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
391 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
392 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
393 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
394 {"binary-architecture", required_argument
, 0, 'B'},
395 {"byte", required_argument
, 0, 'b'},
396 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
397 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
398 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
399 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
400 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
401 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
402 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
403 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
404 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
405 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
406 {"disable-deterministic-archives", no_argument
, 0, 'U'},
407 {"discard-all", no_argument
, 0, 'x'},
408 {"discard-locals", no_argument
, 0, 'X'},
409 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
410 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
411 {"enable-deterministic-archives", no_argument
, 0, 'D'},
412 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
413 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
414 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
415 {"format", required_argument
, 0, 'F'}, /* Obsolete */
416 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
417 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
418 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
419 {"heap", required_argument
, 0, OPTION_HEAP
},
420 {"help", no_argument
, 0, 'h'},
421 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
422 {"impure", no_argument
, 0, OPTION_IMPURE
},
423 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
424 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
425 {"input-target", required_argument
, 0, 'I'},
426 {"interleave", optional_argument
, 0, 'i'},
427 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
428 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
429 {"keep-global-symbol", required_argument
, 0, 'G'},
430 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
431 {"keep-symbol", required_argument
, 0, 'K'},
432 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
433 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
434 {"localize-symbol", required_argument
, 0, 'L'},
435 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
436 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
437 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
438 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
439 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
440 {"only-section", required_argument
, 0, 'j'},
441 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
442 {"output-target", required_argument
, 0, 'O'},
443 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
444 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
445 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
446 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
447 {"preserve-dates", no_argument
, 0, 'p'},
448 {"pure", no_argument
, 0, OPTION_PURE
},
449 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
450 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
451 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
452 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
453 {"remove-section", required_argument
, 0, 'R'},
454 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
455 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
456 {"section-alignment", required_argument
, 0, OPTION_SECTION_ALIGNMENT
},
457 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
458 {"set-start", required_argument
, 0, OPTION_SET_START
},
459 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
460 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
461 {"stack", required_argument
, 0, OPTION_STACK
},
462 {"strip-all", no_argument
, 0, 'S'},
463 {"strip-debug", no_argument
, 0, 'g'},
464 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
465 {"strip-symbol", required_argument
, 0, 'N'},
466 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
467 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
468 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
469 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
470 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
471 {"target", required_argument
, 0, 'F'},
472 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
473 {"verbose", no_argument
, 0, 'v'},
474 {"version", no_argument
, 0, 'V'},
475 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
476 {"weaken-symbol", required_argument
, 0, 'W'},
477 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
478 {"wildcard", no_argument
, 0, 'w'},
479 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
480 {0, no_argument
, 0, 0}
484 extern char *program_name
;
486 /* This flag distinguishes between strip and objcopy:
487 1 means this is 'strip'; 0 means this is 'objcopy'.
488 -1 means if we should use argv[0] to decide. */
491 /* The maximum length of an S record. This variable is declared in srec.c
492 and can be modified by the --srec-len parameter. */
493 extern unsigned int Chunk
;
495 /* Restrict the generation of Srecords to type S3 only.
496 This variable is declare in bfd/srec.c and can be toggled
497 on by the --srec-forceS3 command line switch. */
498 extern bfd_boolean S3Forced
;
500 /* Forward declarations. */
501 static void setup_section (bfd
*, asection
*, void *);
502 static void setup_bfd_headers (bfd
*, bfd
*);
503 static void copy_relocations_in_section (bfd
*, asection
*, void *);
504 static void copy_section (bfd
*, asection
*, void *);
505 static void get_sections (bfd
*, asection
*, void *);
506 static int compare_section_lma (const void *, const void *);
507 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
508 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
509 static const char *lookup_sym_redefinition (const char *);
510 static const char *find_section_rename (const char *, flagword
*);
513 copy_usage (FILE *stream
, int exit_status
)
515 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
516 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
517 fprintf (stream
, _(" The options are:\n"));
518 fprintf (stream
, _("\
519 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
520 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
521 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
522 -F --target <bfdname> Set both input and output format to <bfdname>\n\
523 --debugging Convert debugging information, if possible\n\
524 -p --preserve-dates Copy modified/access timestamps to the output\n"));
525 if (DEFAULT_AR_DETERMINISTIC
)
526 fprintf (stream
, _("\
527 -D --enable-deterministic-archives\n\
528 Produce deterministic output when stripping archives (default)\n\
529 -U --disable-deterministic-archives\n\
530 Disable -D behavior\n"));
532 fprintf (stream
, _("\
533 -D --enable-deterministic-archives\n\
534 Produce deterministic output when stripping archives\n\
535 -U --disable-deterministic-archives\n\
536 Disable -D behavior (default)\n"));
537 fprintf (stream
, _("\
538 -j --only-section <name> Only copy section <name> into the output\n\
539 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
540 -R --remove-section <name> Remove section <name> from the output\n\
541 -S --strip-all Remove all symbol and relocation information\n\
542 -g --strip-debug Remove all debugging symbols & sections\n\
543 --strip-dwo Remove all DWO sections\n\
544 --strip-unneeded Remove all symbols not needed by relocations\n\
545 -N --strip-symbol <name> Do not copy symbol <name>\n\
546 --strip-unneeded-symbol <name>\n\
547 Do not copy symbol <name> unless needed by\n\
549 --only-keep-debug Strip everything but the debug information\n\
550 --extract-dwo Copy only DWO sections\n\
551 --extract-symbol Remove section contents but keep symbols\n\
552 -K --keep-symbol <name> Do not strip symbol <name>\n\
553 --keep-file-symbols Do not strip file symbol(s)\n\
554 --localize-hidden Turn all ELF hidden symbols into locals\n\
555 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
556 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
557 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
558 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
559 --weaken Force all global symbols to be marked as weak\n\
560 -w --wildcard Permit wildcard in symbol comparison\n\
561 -x --discard-all Remove all non-global symbols\n\
562 -X --discard-locals Remove any compiler-generated symbols\n\
563 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
564 --interleave-width <number> Set N for --interleave\n\
565 -b --byte <num> Select byte <num> in every interleaved block\n\
566 --gap-fill <val> Fill gaps between sections with <val>\n\
567 --pad-to <addr> Pad the last section up to address <addr>\n\
568 --set-start <addr> Set the start address to <addr>\n\
569 {--change-start|--adjust-start} <incr>\n\
570 Add <incr> to the start address\n\
571 {--change-addresses|--adjust-vma} <incr>\n\
572 Add <incr> to LMA, VMA and start addresses\n\
573 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
574 Change LMA and VMA of section <name> by <val>\n\
575 --change-section-lma <name>{=|+|-}<val>\n\
576 Change the LMA of section <name> by <val>\n\
577 --change-section-vma <name>{=|+|-}<val>\n\
578 Change the VMA of section <name> by <val>\n\
579 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
580 Warn if a named section does not exist\n\
581 --set-section-flags <name>=<flags>\n\
582 Set section <name>'s properties to <flags>\n\
583 --add-section <name>=<file> Add section <name> found in <file> to output\n\
584 --update-section <name>=<file>\n\
585 Update contents of section <name> with\n\
586 contents found in <file>\n\
587 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
588 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
589 --long-section-names {enable|disable|keep}\n\
590 Handle long section names in Coff objects.\n\
591 --change-leading-char Force output format's leading character style\n\
592 --remove-leading-char Remove leading character from global symbols\n\
593 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
594 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
595 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
597 --srec-len <number> Restrict the length of generated Srecords\n\
598 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
599 --strip-symbols <file> -N for all symbols listed in <file>\n\
600 --strip-unneeded-symbols <file>\n\
601 --strip-unneeded-symbol for all symbols listed\n\
603 --keep-symbols <file> -K for all symbols listed in <file>\n\
604 --localize-symbols <file> -L for all symbols listed in <file>\n\
605 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
606 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
607 --weaken-symbols <file> -W for all symbols listed in <file>\n\
608 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
609 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
610 --writable-text Mark the output text as writable\n\
611 --readonly-text Make the output text write protected\n\
612 --pure Mark the output file as demand paged\n\
613 --impure Mark the output file as impure\n\
614 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
615 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
616 --prefix-alloc-sections <prefix>\n\
617 Add <prefix> to start of every allocatable\n\
619 --file-alignment <num> Set PE file alignment to <num>\n\
620 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
622 --image-base <address> Set PE image base to <address>\n\
623 --section-alignment <num> Set PE section alignment to <num>\n\
624 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
626 --subsystem <name>[:<version>]\n\
627 Set PE subsystem to <name> [& <version>]\n\
628 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
629 Compress DWARF debug sections using zlib\n\
630 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
631 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
633 -v --verbose List all object files modified\n\
634 @<file> Read options from <file>\n\
635 -V --version Display this program's version number\n\
636 -h --help Display this output\n\
637 --info List object formats & architectures supported\n\
639 list_supported_targets (program_name
, stream
);
640 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
641 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
646 strip_usage (FILE *stream
, int exit_status
)
648 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
649 fprintf (stream
, _(" Removes symbols and sections from files\n"));
650 fprintf (stream
, _(" The options are:\n"));
651 fprintf (stream
, _("\
652 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
653 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
654 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
655 -p --preserve-dates Copy modified/access timestamps to the output\n\
657 if (DEFAULT_AR_DETERMINISTIC
)
658 fprintf (stream
, _("\
659 -D --enable-deterministic-archives\n\
660 Produce deterministic output when stripping archives (default)\n\
661 -U --disable-deterministic-archives\n\
662 Disable -D behavior\n"));
664 fprintf (stream
, _("\
665 -D --enable-deterministic-archives\n\
666 Produce deterministic output when stripping archives\n\
667 -U --disable-deterministic-archives\n\
668 Disable -D behavior (default)\n"));
669 fprintf (stream
, _("\
670 -R --remove-section=<name> Also remove section <name> from the output\n\
671 -s --strip-all Remove all symbol and relocation information\n\
672 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
673 --strip-dwo Remove all DWO sections\n\
674 --strip-unneeded Remove all symbols not needed by relocations\n\
675 --only-keep-debug Strip everything but the debug information\n\
676 -N --strip-symbol=<name> Do not copy symbol <name>\n\
677 -K --keep-symbol=<name> Do not strip symbol <name>\n\
678 --keep-file-symbols Do not strip file symbol(s)\n\
679 -w --wildcard Permit wildcard in symbol comparison\n\
680 -x --discard-all Remove all non-global symbols\n\
681 -X --discard-locals Remove any compiler-generated symbols\n\
682 -v --verbose List all object files modified\n\
683 -V --version Display this program's version number\n\
684 -h --help Display this output\n\
685 --info List object formats & architectures supported\n\
686 -o <file> Place stripped output into <file>\n\
689 list_supported_targets (program_name
, stream
);
690 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
691 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
695 /* Parse section flags into a flagword, with a fatal error if the
696 string can't be parsed. */
699 parse_flags (const char *s
)
709 snext
= strchr (s
, ',');
719 #define PARSE_FLAG(fname,fval) \
720 else if (strncasecmp (fname, s, len) == 0) ret |= fval
721 PARSE_FLAG ("alloc", SEC_ALLOC
);
722 PARSE_FLAG ("load", SEC_LOAD
);
723 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
724 PARSE_FLAG ("readonly", SEC_READONLY
);
725 PARSE_FLAG ("debug", SEC_DEBUGGING
);
726 PARSE_FLAG ("code", SEC_CODE
);
727 PARSE_FLAG ("data", SEC_DATA
);
728 PARSE_FLAG ("rom", SEC_ROM
);
729 PARSE_FLAG ("share", SEC_COFF_SHARED
);
730 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
731 PARSE_FLAG ("merge", SEC_MERGE
);
732 PARSE_FLAG ("strings", SEC_STRINGS
);
738 copy
= (char *) xmalloc (len
+ 1);
739 strncpy (copy
, s
, len
);
741 non_fatal (_("unrecognized section flag `%s'"), copy
);
742 fatal (_("supported flags: %s"),
743 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
753 /* Parse symbol flags into a flagword, with a fatal error if the
754 string can't be parsed. */
757 parse_symflags (const char *s
, char **other
)
767 snext
= strchr (s
, ',');
776 #define PARSE_FLAG(fname, fval) \
777 else if (len == sizeof fname - 1 \
778 && strncasecmp (fname, s, len) == 0) \
781 #define PARSE_OTHER(fname, fval) \
782 else if (len >= sizeof fname \
783 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
784 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
787 PARSE_FLAG ("local", BSF_LOCAL
);
788 PARSE_FLAG ("global", BSF_GLOBAL
);
789 PARSE_FLAG ("export", BSF_EXPORT
);
790 PARSE_FLAG ("debug", BSF_DEBUGGING
);
791 PARSE_FLAG ("function", BSF_FUNCTION
);
792 PARSE_FLAG ("weak", BSF_WEAK
);
793 PARSE_FLAG ("section", BSF_SECTION_SYM
);
794 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
795 PARSE_FLAG ("warning", BSF_WARNING
);
796 PARSE_FLAG ("indirect", BSF_INDIRECT
);
797 PARSE_FLAG ("file", BSF_FILE
);
798 PARSE_FLAG ("object", BSF_OBJECT
);
799 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
800 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
801 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
802 PARSE_OTHER ("before=", *other
);
810 copy
= (char *) xmalloc (len
+ 1);
811 strncpy (copy
, s
, len
);
813 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
814 fatal (_("supported flags: %s"),
815 "local, global, export, debug, function, weak, section, "
816 "constructor, warning, indirect, file, object, synthetic, "
817 "indirect-function, unique-object, before=<othersym>");
827 /* Find and optionally add an entry in the change_sections list.
829 We need to be careful in how we match section names because of the support
830 for wildcard characters. For example suppose that the user has invoked
833 --set-section-flags .debug_*=debug
834 --set-section-flags .debug_str=readonly,debug
835 --change-section-address .debug_*ranges=0x1000
837 With the idea that all debug sections will receive the DEBUG flag, the
838 .debug_str section will also receive the READONLY flag and the
839 .debug_ranges and .debug_aranges sections will have their address set to
840 0x1000. (This may not make much sense, but it is just an example).
842 When adding the section name patterns to the section list we need to make
843 sure that previous entries do not match with the new entry, unless the
844 match is exact. (In which case we assume that the user is overriding
845 the previous entry with the new context).
847 When matching real section names to the section list we make use of the
848 wildcard characters, but we must do so in context. Eg if we are setting
849 section addresses then we match for .debug_ranges but not for .debug_info.
851 Finally, if ADD is false and we do find a match, we mark the section list
854 static struct section_list
*
855 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
857 struct section_list
*p
;
859 /* assert ((context & ((1 << 7) - 1)) != 0); */
861 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
865 if (strcmp (p
->pattern
, name
) == 0)
867 /* Check for context conflicts. */
868 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
869 && (context
& SECTION_CONTEXT_COPY
))
870 || ((context
& SECTION_CONTEXT_REMOVE
)
871 && (p
->context
& SECTION_CONTEXT_COPY
)))
872 fatal (_("error: %s both copied and removed"), name
);
874 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
875 && (context
& SECTION_CONTEXT_ALTER_VMA
))
876 || ((context
& SECTION_CONTEXT_SET_VMA
)
877 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
878 fatal (_("error: %s both sets and alters VMA"), name
);
880 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
881 && (context
& SECTION_CONTEXT_ALTER_LMA
))
882 || ((context
& SECTION_CONTEXT_SET_LMA
)
883 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
884 fatal (_("error: %s both sets and alters LMA"), name
);
886 /* Extend the context. */
887 p
->context
|= context
;
891 /* If we are not adding a new name/pattern then
892 only check for a match if the context applies. */
893 else if ((p
->context
& context
)
894 /* We could check for the presence of wildchar characters
895 first and choose between calling strcmp and fnmatch,
896 but is that really worth it ? */
897 && fnmatch (p
->pattern
, name
, 0) == 0)
907 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
910 p
->context
= context
;
914 p
->next
= change_sections
;
920 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
923 eq_string (const void *s1
, const void *s2
)
925 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
929 create_symbol_htab (void)
931 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
935 create_symbol_htabs (void)
937 strip_specific_htab
= create_symbol_htab ();
938 strip_unneeded_htab
= create_symbol_htab ();
939 keep_specific_htab
= create_symbol_htab ();
940 localize_specific_htab
= create_symbol_htab ();
941 globalize_specific_htab
= create_symbol_htab ();
942 keepglobal_specific_htab
= create_symbol_htab ();
943 weaken_specific_htab
= create_symbol_htab ();
946 /* Add a symbol to strip_specific_list. */
949 add_specific_symbol (const char *name
, htab_t htab
)
951 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
954 /* Add symbols listed in `filename' to strip_specific_list. */
956 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
957 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
960 add_specific_symbols (const char *filename
, htab_t htab
)
966 unsigned int line_count
;
968 size
= get_file_size (filename
);
975 buffer
= (char *) xmalloc (size
+ 2);
976 f
= fopen (filename
, FOPEN_RT
);
978 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
980 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
981 fatal (_("%s: fread failed"), filename
);
984 buffer
[size
] = '\n';
985 buffer
[size
+ 1] = '\0';
989 for (line
= buffer
; * line
!= '\0'; line
++)
994 int finished
= FALSE
;
996 for (eol
= line
;; eol
++)
1002 /* Cope with \n\r. */
1010 /* Cope with \r\n. */
1021 /* Line comment, Terminate the line here, in case a
1022 name is present and then allow the rest of the
1023 loop to find the real end of the line. */
1035 /* A name may now exist somewhere between 'line' and 'eol'.
1036 Strip off leading whitespace and trailing whitespace,
1037 then add it to the list. */
1038 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1040 for (name_end
= name
;
1041 (! IS_WHITESPACE (* name_end
))
1042 && (! IS_LINE_TERMINATOR (* name_end
));
1046 if (! IS_LINE_TERMINATOR (* name_end
))
1050 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1053 if (! IS_LINE_TERMINATOR (* extra
))
1054 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1055 filename
, line_count
);
1060 if (name_end
> name
)
1061 add_specific_symbol (name
, htab
);
1063 /* Advance line pointer to end of line. The 'eol ++' in the for
1064 loop above will then advance us to the start of the next line. */
1070 /* See whether a symbol should be stripped or kept
1071 based on strip_specific_list and keep_symbols. */
1074 is_specified_symbol_predicate (void **slot
, void *data
)
1076 struct is_specified_symbol_predicate_data
*d
=
1077 (struct is_specified_symbol_predicate_data
*) data
;
1078 const char *slot_name
= (char *) *slot
;
1080 if (*slot_name
!= '!')
1082 if (! fnmatch (slot_name
, d
->name
, 0))
1085 /* Continue traversal, there might be a non-match rule. */
1091 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1094 /* Stop traversal. */
1099 /* Continue traversal. */
1104 is_specified_symbol (const char *name
, htab_t htab
)
1108 struct is_specified_symbol_predicate_data data
;
1113 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1118 return htab_find (htab
, name
) != NULL
;
1121 /* Return a pointer to the symbol used as a signature for GROUP. */
1124 group_signature (asection
*group
)
1126 bfd
*abfd
= group
->owner
;
1127 Elf_Internal_Shdr
*ghdr
;
1129 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1133 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1136 ghdr
= &elf_section_data (group
)->this_hdr
;
1137 if (ghdr
->sh_link
< elf_numsections (abfd
))
1139 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1140 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1142 if (symhdr
->sh_type
== SHT_SYMTAB
1143 && ghdr
->sh_info
> 0
1144 && ghdr
->sh_info
< (symhdr
->sh_size
/ bed
->s
->sizeof_sym
))
1145 return isympp
[ghdr
->sh_info
- 1];
1150 /* Return TRUE if the section is a DWO section. */
1153 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1155 const char *name
= bfd_get_section_name (abfd
, sec
);
1156 int len
= strlen (name
);
1158 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1161 /* Return TRUE if section SEC is in the update list. */
1164 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1166 if (update_sections
!= NULL
)
1168 struct section_add
*pupdate
;
1170 for (pupdate
= update_sections
;
1172 pupdate
= pupdate
->next
)
1174 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1182 /* See if a non-group section is being removed. */
1185 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1187 if (sections_removed
|| sections_copied
)
1189 struct section_list
*p
;
1190 struct section_list
*q
;
1192 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1193 SECTION_CONTEXT_REMOVE
);
1194 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1195 SECTION_CONTEXT_COPY
);
1198 fatal (_("error: section %s matches both remove and copy options"),
1199 bfd_get_section_name (abfd
, sec
));
1200 if (p
&& is_update_section (abfd
, sec
))
1201 fatal (_("error: section %s matches both update and remove options"),
1202 bfd_get_section_name (abfd
, sec
));
1206 if (sections_copied
&& q
== NULL
)
1210 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1212 if (strip_symbols
== STRIP_DEBUG
1213 || strip_symbols
== STRIP_UNNEEDED
1214 || strip_symbols
== STRIP_ALL
1215 || discard_locals
== LOCALS_ALL
1216 || convert_debugging
)
1218 /* By default we don't want to strip .reloc section.
1219 This section has for pe-coff special meaning. See
1220 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1221 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1225 if (strip_symbols
== STRIP_DWO
)
1226 return is_dwo_section (abfd
, sec
);
1228 if (strip_symbols
== STRIP_NONDEBUG
)
1232 if (strip_symbols
== STRIP_NONDWO
)
1233 return !is_dwo_section (abfd
, sec
);
1238 /* See if a section is being removed. */
1241 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1243 if (is_strip_section_1 (abfd
, sec
))
1246 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1250 asection
*elt
, *first
;
1253 If we are going to strip the group signature symbol, then
1254 strip the group section too. */
1255 gsym
= group_signature (sec
);
1260 if ((strip_symbols
== STRIP_ALL
1261 && !is_specified_symbol (gname
, keep_specific_htab
))
1262 || is_specified_symbol (gname
, strip_specific_htab
))
1265 /* Remove the group section if all members are removed. */
1266 first
= elt
= elf_next_in_group (sec
);
1269 if (!is_strip_section_1 (abfd
, elt
))
1271 elt
= elf_next_in_group (elt
);
1283 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1285 /* Always keep ELF note sections. */
1286 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1287 return (elf_section_type (isection
) == SHT_NOTE
);
1289 /* Always keep the .buildid section for PE/COFF.
1291 Strictly, this should be written "always keep the section storing the debug
1292 directory", but that may be the .text section for objects produced by some
1293 tools, which it is not sensible to keep. */
1294 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1295 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1300 /* Return true if SYM is a hidden symbol. */
1303 is_hidden_symbol (asymbol
*sym
)
1305 elf_symbol_type
*elf_sym
;
1307 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1308 if (elf_sym
!= NULL
)
1309 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1319 need_sym_before (struct addsym_node
**node
, const char *sym
)
1322 struct addsym_node
*ptr
= add_sym_list
;
1324 /* 'othersym' symbols are at the front of the list. */
1325 for (count
= 0; count
< add_symbols
; count
++)
1329 else if (strcmp (ptr
->othersym
, sym
) == 0)
1331 free (ptr
->othersym
);
1332 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1342 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1344 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1346 bfd_asymbol_name (sym
) = ptr
->symdef
;
1347 sym
->value
= ptr
->symval
;
1348 sym
->flags
= ptr
->flags
;
1351 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1353 fatal (_("Section %s not found"), ptr
->section
);
1357 sym
->section
= bfd_abs_section_ptr
;
1361 /* Choose which symbol entries to copy; put the result in OSYMS.
1362 We don't copy in place, because that confuses the relocs.
1363 Return the number of symbols to print. */
1366 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1367 asymbol
**isyms
, long symcount
)
1369 asymbol
**from
= isyms
, **to
= osyms
;
1370 long src_count
= 0, dst_count
= 0;
1371 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1373 for (; src_count
< symcount
; src_count
++)
1375 asymbol
*sym
= from
[src_count
];
1376 flagword flags
= sym
->flags
;
1377 char *name
= (char *) bfd_asymbol_name (sym
);
1379 bfd_boolean used_in_reloc
= FALSE
;
1380 bfd_boolean undefined
;
1381 bfd_boolean rem_leading_char
;
1382 bfd_boolean add_leading_char
;
1384 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1388 struct addsym_node
*ptr
;
1390 if (need_sym_before (&ptr
, name
))
1391 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1394 if (redefine_sym_list
|| section_rename_list
)
1398 new_name
= (char *) lookup_sym_redefinition (name
);
1399 if (new_name
== name
1400 && (flags
& BSF_SECTION_SYM
) != 0)
1401 new_name
= (char *) find_section_rename (name
, NULL
);
1402 bfd_asymbol_name (sym
) = new_name
;
1406 /* Check if we will remove the current leading character. */
1408 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1409 && (change_leading_char
1410 || (remove_leading_char
1411 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1413 || bfd_is_com_section (bfd_get_section (sym
)))));
1415 /* Check if we will add a new leading character. */
1418 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1419 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1420 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1422 /* Short circuit for change_leading_char if we can do it in-place. */
1423 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1425 name
[0] = bfd_get_symbol_leading_char (obfd
);
1426 bfd_asymbol_name (sym
) = name
;
1427 rem_leading_char
= FALSE
;
1428 add_leading_char
= FALSE
;
1431 /* Remove leading char. */
1432 if (rem_leading_char
)
1433 bfd_asymbol_name (sym
) = ++name
;
1435 /* Add new leading char and/or prefix. */
1436 if (add_leading_char
|| prefix_symbols_string
)
1440 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1441 + strlen (name
) + 1);
1442 if (add_leading_char
)
1443 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1445 if (prefix_symbols_string
)
1447 strcpy (ptr
, prefix_symbols_string
);
1448 ptr
+= strlen (prefix_symbols_string
);
1452 bfd_asymbol_name (sym
) = n
;
1456 if (strip_symbols
== STRIP_ALL
)
1458 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1459 || ((flags
& BSF_SECTION_SYM
) != 0
1460 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1464 used_in_reloc
= TRUE
;
1466 else if (relocatable
/* Relocatable file. */
1467 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1468 || bfd_is_com_section (bfd_get_section (sym
))))
1470 else if (bfd_decode_symclass (sym
) == 'I')
1471 /* Global symbols in $idata sections need to be retained
1472 even if relocatable is FALSE. External users of the
1473 library containing the $idata section may reference these
1476 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1477 || (flags
& BSF_WEAK
) != 0
1479 || bfd_is_com_section (bfd_get_section (sym
)))
1480 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1481 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1482 keep
= (strip_symbols
!= STRIP_DEBUG
1483 && strip_symbols
!= STRIP_UNNEEDED
1484 && ! convert_debugging
);
1485 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1486 /* COMDAT sections store special information in local
1487 symbols, so we cannot risk stripping any of them. */
1489 else /* Local symbol. */
1490 keep
= (strip_symbols
!= STRIP_UNNEEDED
1491 && (discard_locals
!= LOCALS_ALL
1492 && (discard_locals
!= LOCALS_START_L
1493 || ! bfd_is_local_label (abfd
, sym
))));
1495 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1497 /* There are multiple ways to set 'keep' above, but if it
1498 was the relocatable symbol case, then that's an error. */
1501 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1509 && !(flags
& BSF_KEEP
)
1510 && is_specified_symbol (name
, strip_unneeded_htab
))
1514 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1515 || is_specified_symbol (name
, keep_specific_htab
)))
1518 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1523 if ((flags
& BSF_GLOBAL
) != 0
1524 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1526 sym
->flags
&= ~ BSF_GLOBAL
;
1527 sym
->flags
|= BSF_WEAK
;
1531 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1532 && (is_specified_symbol (name
, localize_specific_htab
)
1533 || (htab_elements (keepglobal_specific_htab
) != 0
1534 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1535 || (localize_hidden
&& is_hidden_symbol (sym
))))
1537 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1538 sym
->flags
|= BSF_LOCAL
;
1542 && (flags
& BSF_LOCAL
)
1543 && is_specified_symbol (name
, globalize_specific_htab
))
1545 sym
->flags
&= ~ BSF_LOCAL
;
1546 sym
->flags
|= BSF_GLOBAL
;
1549 to
[dst_count
++] = sym
;
1554 struct addsym_node
*ptr
= add_sym_list
;
1556 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1560 if (strcmp (ptr
->othersym
, ""))
1561 fatal (_("'before=%s' not found"), ptr
->othersym
);
1564 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1570 to
[dst_count
] = NULL
;
1575 /* Find the redefined name of symbol SOURCE. */
1578 lookup_sym_redefinition (const char *source
)
1580 struct redefine_node
*list
;
1582 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1583 if (strcmp (source
, list
->source
) == 0)
1584 return list
->target
;
1589 /* Add a node to a symbol redefine list. */
1592 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1594 struct redefine_node
**p
;
1595 struct redefine_node
*list
;
1596 struct redefine_node
*new_node
;
1598 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1600 if (strcmp (source
, list
->source
) == 0)
1601 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1604 if (strcmp (target
, list
->target
) == 0)
1605 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1609 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1611 new_node
->source
= strdup (source
);
1612 new_node
->target
= strdup (target
);
1613 new_node
->next
= NULL
;
1618 /* Handle the --redefine-syms option. Read lines containing "old new"
1619 from the file, and add them to the symbol redefine list. */
1622 add_redefine_syms_file (const char *filename
)
1631 file
= fopen (filename
, "r");
1633 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1634 filename
, strerror (errno
));
1637 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1645 /* Collect the input symbol name. */
1646 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1654 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1662 /* Eat white space between the symbol names. */
1663 while (IS_WHITESPACE (c
))
1665 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1670 /* Collect the output symbol name. */
1672 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1680 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1688 /* Eat white space at end of line. */
1689 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1694 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1695 || c
== '\n' || c
== EOF
)
1698 /* Append the redefinition to the list. */
1700 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1711 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1713 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1714 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1717 /* Eat the rest of the line and finish it. */
1718 while (c
!= '\n' && c
!= EOF
)
1724 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1729 /* Copy unkown object file IBFD onto OBFD.
1730 Returns TRUE upon success, FALSE otherwise. */
1733 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1741 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1743 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1750 non_fatal (_("stat returns negative size for `%s'"),
1751 bfd_get_archive_filename (ibfd
));
1755 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1757 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1762 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1763 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1765 cbuf
= (char *) xmalloc (BUFSIZE
);
1767 while (ncopied
< size
)
1769 tocopy
= size
- ncopied
;
1770 if (tocopy
> BUFSIZE
)
1773 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1774 != (bfd_size_type
) tocopy
)
1776 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1781 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1782 != (bfd_size_type
) tocopy
)
1784 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1792 /* We should at least to be able to read it back when copying an
1793 unknown object in an archive. */
1794 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1799 /* Copy object file IBFD onto OBFD.
1800 Returns TRUE upon success, FALSE otherwise. */
1803 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1807 asection
**osections
= NULL
;
1808 asection
*gnu_debuglink_section
= NULL
;
1809 bfd_size_type
*gaps
= NULL
;
1810 bfd_size_type max_gap
= 0;
1813 enum bfd_architecture iarch
;
1817 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1818 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1819 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1821 /* PR 17636: Call non-fatal so that we return to our parent who
1822 may need to tidy temporary files. */
1823 non_fatal (_("Unable to change endianness of input file(s)"));
1827 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1829 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1833 if (ibfd
->sections
== NULL
)
1835 non_fatal (_("error: the input file '%s' has no sections"),
1836 bfd_get_archive_filename (ibfd
));
1840 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
1842 if ((do_debug_sections
& compress
) != 0
1843 && do_debug_sections
!= compress
)
1845 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1846 bfd_get_archive_filename (ibfd
));
1850 if (do_elf_stt_common
)
1852 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
1853 bfd_get_archive_filename (ibfd
));
1859 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1860 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1861 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1870 start
= bfd_get_start_address (ibfd
);
1871 start
+= change_start
;
1874 /* Neither the start address nor the flags
1875 need to be set for a core file. */
1876 if (bfd_get_format (obfd
) != bfd_core
)
1880 flags
= bfd_get_file_flags (ibfd
);
1881 flags
|= bfd_flags_to_set
;
1882 flags
&= ~bfd_flags_to_clear
;
1883 flags
&= bfd_applicable_file_flags (obfd
);
1885 if (strip_symbols
== STRIP_ALL
)
1886 flags
&= ~HAS_RELOC
;
1888 if (!bfd_set_start_address (obfd
, start
)
1889 || !bfd_set_file_flags (obfd
, flags
))
1891 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1896 /* Copy architecture of input file to output file. */
1897 iarch
= bfd_get_arch (ibfd
);
1898 imach
= bfd_get_mach (ibfd
);
1901 if (bfd_get_arch_info (ibfd
) == NULL
1902 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1904 iarch
= input_arch
->arch
;
1905 imach
= input_arch
->mach
;
1908 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1909 bfd_get_archive_filename (ibfd
));
1911 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1912 && (ibfd
->target_defaulted
1913 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1915 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1916 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1917 bfd_get_archive_filename (ibfd
));
1919 non_fatal (_("Output file cannot represent architecture `%s'"),
1920 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1921 bfd_get_mach (ibfd
)));
1925 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1927 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1931 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1932 && bfd_pei_p (obfd
))
1934 /* Set up PE parameters. */
1935 pe_data_type
*pe
= pe_data (obfd
);
1937 /* Copy PE parameters before changing them. */
1938 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1939 && bfd_pei_p (ibfd
))
1940 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1942 if (pe_file_alignment
!= (bfd_vma
) -1)
1943 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1945 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1947 if (pe_heap_commit
!= (bfd_vma
) -1)
1948 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1950 if (pe_heap_reserve
!= (bfd_vma
) -1)
1951 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1953 if (pe_image_base
!= (bfd_vma
) -1)
1954 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1956 if (pe_section_alignment
!= (bfd_vma
) -1)
1957 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1959 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1961 if (pe_stack_commit
!= (bfd_vma
) -1)
1962 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1964 if (pe_stack_reserve
!= (bfd_vma
) -1)
1965 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1967 if (pe_subsystem
!= -1)
1968 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1970 if (pe_major_subsystem_version
!= -1)
1971 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1973 if (pe_minor_subsystem_version
!= -1)
1974 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1976 if (pe_file_alignment
> pe_section_alignment
)
1978 char file_alignment
[20], section_alignment
[20];
1980 sprintf_vma (file_alignment
, pe_file_alignment
);
1981 sprintf_vma (section_alignment
, pe_section_alignment
);
1982 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1984 file_alignment
, section_alignment
);
1991 if (osympp
!= isympp
)
1997 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2000 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2004 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2005 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2008 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2011 /* PR 17512: file: d6323821
2012 If the symbol table could not be loaded do not pretend that we have
2013 any symbols. This trips us up later on when we load the relocs. */
2017 osympp
= isympp
= NULL
;
2020 /* BFD mandates that all output sections be created and sizes set before
2021 any output is done. Thus, we traverse all sections multiple times. */
2022 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2024 if (!extract_symbol
)
2025 setup_bfd_headers (ibfd
, obfd
);
2027 if (add_sections
!= NULL
)
2029 struct section_add
*padd
;
2030 struct section_list
*pset
;
2032 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2036 pset
= find_section_list (padd
->name
, FALSE
,
2037 SECTION_CONTEXT_SET_FLAGS
);
2039 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2041 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2043 /* bfd_make_section_with_flags() does not return very helpful
2044 error codes, so check for the most likely user error first. */
2045 if (bfd_get_section_by_name (obfd
, padd
->name
))
2047 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2048 _("can't add section '%s'"), padd
->name
);
2053 /* We use LINKER_CREATED here so that the backend hooks
2054 will create any special section type information,
2055 instead of presuming we know what we're doing merely
2056 because we set the flags. */
2057 padd
->section
= bfd_make_section_with_flags
2058 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2059 if (padd
->section
== NULL
)
2061 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2062 _("can't create section `%s'"),
2068 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2070 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2074 pset
= find_section_list (padd
->name
, FALSE
,
2075 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2077 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2079 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2083 pset
= find_section_list (padd
->name
, FALSE
,
2084 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2087 padd
->section
->lma
= pset
->lma_val
;
2089 if (! bfd_set_section_alignment
2090 (obfd
, padd
->section
,
2091 bfd_section_alignment (obfd
, padd
->section
)))
2093 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2100 if (update_sections
!= NULL
)
2102 struct section_add
*pupdate
;
2104 for (pupdate
= update_sections
;
2106 pupdate
= pupdate
->next
)
2110 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2111 if (pupdate
->section
== NULL
)
2113 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2117 osec
= pupdate
->section
->output_section
;
2118 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2120 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2126 if (dump_sections
!= NULL
)
2128 struct section_add
* pdump
;
2130 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2134 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2137 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2138 _("can't dump section '%s' - it does not exist"),
2143 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
2145 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2146 _("can't dump section - it has no contents"));
2150 bfd_size_type size
= bfd_get_section_size (sec
);
2153 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2154 _("can't dump section - it is empty"));
2159 f
= fopen (pdump
->filename
, FOPEN_WB
);
2162 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2163 _("could not open section dump file"));
2167 bfd_byte
* contents
= xmalloc (size
);
2168 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
2170 if (fwrite (contents
, 1, size
, f
) != size
)
2172 non_fatal (_("error writing section contents to %s (error: %s)"),
2179 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2180 _("could not retrieve section contents"));
2187 if (gnu_debuglink_filename
!= NULL
)
2189 /* PR 15125: Give a helpful warning message if
2190 the debuglink section already exists, and
2191 allow the rest of the copy to complete. */
2192 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2194 non_fatal (_("%s: debuglink section already exists"),
2195 bfd_get_filename (obfd
));
2196 gnu_debuglink_filename
= NULL
;
2200 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2201 (obfd
, gnu_debuglink_filename
);
2203 if (gnu_debuglink_section
== NULL
)
2205 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2206 _("cannot create debug link section `%s'"),
2207 gnu_debuglink_filename
);
2211 /* Special processing for PE format files. We
2212 have no way to distinguish PE from COFF here. */
2213 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2215 bfd_vma debuglink_vma
;
2216 asection
* highest_section
;
2219 /* The PE spec requires that all sections be adjacent and sorted
2220 in ascending order of VMA. It also specifies that debug
2221 sections should be last. This is despite the fact that debug
2222 sections are not loaded into memory and so in theory have no
2225 This means that the debuglink section must be given a non-zero
2226 VMA which makes it contiguous with other debug sections. So
2227 walk the current section list, find the section with the
2228 highest VMA and start the debuglink section after that one. */
2229 for (sec
= obfd
->sections
, highest_section
= NULL
;
2233 && (highest_section
== NULL
2234 || sec
->vma
> highest_section
->vma
))
2235 highest_section
= sec
;
2237 if (highest_section
)
2238 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2239 + highest_section
->size
,
2240 /* FIXME: We ought to be using
2241 COFF_PAGE_SIZE here or maybe
2242 bfd_get_section_alignment() (if it
2243 was set) but since this is for PE
2244 and we know the required alignment
2245 it is easier just to hard code it. */
2248 /* Umm, not sure what to do in this case. */
2249 debuglink_vma
= 0x1000;
2251 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2256 c
= bfd_count_sections (obfd
);
2258 && (gap_fill_set
|| pad_to_set
))
2262 /* We must fill in gaps between the sections and/or we must pad
2263 the last section to a specified address. We do this by
2264 grabbing a list of the sections, sorting them by VMA, and
2265 increasing the section sizes as required to fill the gaps.
2266 We write out the gap contents below. */
2268 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2270 bfd_map_over_sections (obfd
, get_sections
, &set
);
2272 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2274 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2275 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2279 for (i
= 0; i
< c
- 1; i
++)
2283 bfd_vma gap_start
, gap_stop
;
2285 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2286 if ((flags
& SEC_HAS_CONTENTS
) == 0
2287 || (flags
& SEC_LOAD
) == 0)
2290 size
= bfd_section_size (obfd
, osections
[i
]);
2291 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2292 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2293 if (gap_start
< gap_stop
)
2295 if (! bfd_set_section_size (obfd
, osections
[i
],
2296 size
+ (gap_stop
- gap_start
)))
2298 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2299 _("Can't fill gap after section"));
2303 gaps
[i
] = gap_stop
- gap_start
;
2304 if (max_gap
< gap_stop
- gap_start
)
2305 max_gap
= gap_stop
- gap_start
;
2315 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2316 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2317 if (lma
+ size
< pad_to
)
2319 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2322 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2323 _("can't add padding"));
2328 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2329 if (max_gap
< pad_to
- (lma
+ size
))
2330 max_gap
= pad_to
- (lma
+ size
);
2336 /* Symbol filtering must happen after the output sections
2337 have been created, but before their contents are set. */
2339 if (convert_debugging
)
2340 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2342 if (strip_symbols
== STRIP_DEBUG
2343 || strip_symbols
== STRIP_ALL
2344 || strip_symbols
== STRIP_UNNEEDED
2345 || strip_symbols
== STRIP_NONDEBUG
2346 || strip_symbols
== STRIP_DWO
2347 || strip_symbols
== STRIP_NONDWO
2348 || discard_locals
!= LOCALS_UNDEF
2350 || htab_elements (strip_specific_htab
) != 0
2351 || htab_elements (keep_specific_htab
) != 0
2352 || htab_elements (localize_specific_htab
) != 0
2353 || htab_elements (globalize_specific_htab
) != 0
2354 || htab_elements (keepglobal_specific_htab
) != 0
2355 || htab_elements (weaken_specific_htab
) != 0
2356 || prefix_symbols_string
2359 || convert_debugging
2360 || change_leading_char
2361 || remove_leading_char
2362 || redefine_sym_list
2363 || section_rename_list
2367 /* Mark symbols used in output relocations so that they
2368 are kept, even if they are local labels or static symbols.
2370 Note we iterate over the input sections examining their
2371 relocations since the relocations for the output sections
2372 haven't been set yet. mark_symbols_used_in_relocations will
2373 ignore input sections which have no corresponding output
2375 if (strip_symbols
!= STRIP_ALL
)
2376 bfd_map_over_sections (ibfd
,
2377 mark_symbols_used_in_relocations
,
2379 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
2380 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2383 if (convert_debugging
&& dhandle
!= NULL
)
2385 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2392 bfd_set_symtab (obfd
, osympp
, symcount
);
2394 /* This has to happen before section positions are set. */
2395 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2397 /* This has to happen after the symbol table has been set. */
2398 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2400 if (add_sections
!= NULL
)
2402 struct section_add
*padd
;
2404 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2406 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2409 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2415 if (update_sections
!= NULL
)
2417 struct section_add
*pupdate
;
2419 for (pupdate
= update_sections
;
2421 pupdate
= pupdate
->next
)
2425 osec
= pupdate
->section
->output_section
;
2426 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2429 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2435 if (gnu_debuglink_filename
!= NULL
)
2437 if (! bfd_fill_in_gnu_debuglink_section
2438 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2440 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2441 _("cannot fill debug link section `%s'"),
2442 gnu_debuglink_filename
);
2447 if (gap_fill_set
|| pad_to_set
)
2451 /* Fill in the gaps. */
2454 buf
= (bfd_byte
*) xmalloc (max_gap
);
2455 memset (buf
, gap_fill
, max_gap
);
2457 c
= bfd_count_sections (obfd
);
2458 for (i
= 0; i
< c
; i
++)
2466 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2477 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2480 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2491 /* Allow the BFD backend to copy any private data it understands
2492 from the input BFD to the output BFD. This is done last to
2493 permit the routine to look at the filtered symbol table, which is
2494 important for the ECOFF code at least. */
2495 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2497 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2498 _("error copying private BFD data"));
2502 /* Switch to the alternate machine code. We have to do this at the
2503 very end, because we only initialize the header when we create
2504 the first section. */
2505 if (use_alt_mach_code
!= 0)
2507 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2509 non_fatal (_("this target does not support %lu alternative machine codes"),
2511 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2513 non_fatal (_("treating that number as an absolute e_machine value instead"));
2514 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2517 non_fatal (_("ignoring the alternative value"));
2524 /* Read each archive element in turn from IBFD, copy the
2525 contents to temp file, and keep the temp file handle.
2526 If 'force_output_target' is TRUE then make sure that
2527 all elements in the new archive are of the type
2531 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2532 bfd_boolean force_output_target
,
2533 const bfd_arch_info_type
*input_arch
)
2537 struct name_list
*next
;
2541 bfd
**ptr
= &obfd
->archive_head
;
2544 const char *filename
;
2546 /* Make a temp directory to hold the contents. */
2547 dir
= make_tempdir (bfd_get_filename (obfd
));
2549 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2552 if (strip_symbols
== STRIP_ALL
)
2553 obfd
->has_armap
= FALSE
;
2555 obfd
->has_armap
= ibfd
->has_armap
;
2556 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2559 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2563 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2565 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2568 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2569 goto cleanup_and_exit
;
2572 while (!status
&& this_element
!= NULL
)
2578 int stat_status
= 0;
2579 bfd_boolean del
= TRUE
;
2580 bfd_boolean ok_object
;
2582 /* PR binutils/17533: Do not allow directory traversal
2583 outside of the current directory tree by archive members. */
2584 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2586 non_fatal (_("illegal pathname found in archive member: %s"),
2587 bfd_get_filename (this_element
));
2589 goto cleanup_and_exit
;
2592 /* Create an output file for this member. */
2593 output_name
= concat (dir
, "/",
2594 bfd_get_filename (this_element
), (char *) 0);
2596 /* If the file already exists, make another temp dir. */
2597 if (stat (output_name
, &buf
) >= 0)
2599 output_name
= make_tempdir (output_name
);
2600 if (output_name
== NULL
)
2602 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2605 goto cleanup_and_exit
;
2608 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2609 l
->name
= output_name
;
2613 output_name
= concat (output_name
, "/",
2614 bfd_get_filename (this_element
), (char *) 0);
2619 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2621 if (stat_status
!= 0)
2622 non_fatal (_("internal stat error on %s"),
2623 bfd_get_filename (this_element
));
2626 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2627 l
->name
= output_name
;
2632 ok_object
= bfd_check_format (this_element
, bfd_object
);
2634 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2635 _("Unable to recognise the format of file"));
2637 /* PR binutils/3110: Cope with archives
2638 containing multiple target types. */
2639 if (force_output_target
|| !ok_object
)
2640 output_bfd
= bfd_openw (output_name
, output_target
);
2642 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2644 if (output_bfd
== NULL
)
2646 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2648 goto cleanup_and_exit
;
2653 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2655 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2656 /* Try again as an unknown object file. */
2658 else if (!bfd_close (output_bfd
))
2660 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2661 /* Error in new object file. Don't change archive. */
2668 del
= !copy_unknown_object (this_element
, output_bfd
);
2669 if (!bfd_close_all_done (output_bfd
))
2671 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2672 /* Error in new object file. Don't change archive. */
2679 unlink (output_name
);
2684 if (preserve_dates
&& stat_status
== 0)
2685 set_times (output_name
, &buf
);
2687 /* Open the newly output file and attach to our list. */
2688 output_bfd
= bfd_openr (output_name
, output_target
);
2690 l
->obfd
= output_bfd
;
2693 ptr
= &output_bfd
->archive_next
;
2695 last_element
= this_element
;
2697 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2699 bfd_close (last_element
);
2704 filename
= bfd_get_filename (obfd
);
2705 if (!bfd_close (obfd
))
2708 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2711 filename
= bfd_get_filename (ibfd
);
2712 if (!bfd_close (ibfd
))
2715 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2719 /* Delete all the files that we opened. */
2720 for (l
= list
; l
!= NULL
; l
= l
->next
)
2722 if (l
->obfd
== NULL
)
2726 bfd_close (l
->obfd
);
2735 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2737 /* This is only relevant to Coff targets. */
2738 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2741 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2742 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2743 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2747 /* The top-level control. */
2750 copy_file (const char *input_filename
, const char *output_filename
,
2751 const char *input_target
, const char *output_target
,
2752 const bfd_arch_info_type
*input_arch
)
2755 char **obj_matching
;
2756 char **core_matching
;
2757 off_t size
= get_file_size (input_filename
);
2762 non_fatal (_("error: the input file '%s' is empty"),
2768 /* To allow us to do "strip *" without dying on the first
2769 non-object file, failures are nonfatal. */
2770 ibfd
= bfd_openr (input_filename
, input_target
);
2773 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2778 switch (do_debug_sections
)
2782 case compress_gnu_zlib
:
2783 case compress_gabi_zlib
:
2784 ibfd
->flags
|= BFD_COMPRESS
;
2785 /* Don't check if input is ELF here since this information is
2786 only available after bfd_check_format_matches is called. */
2787 if (do_debug_sections
!= compress_gnu_zlib
)
2788 ibfd
->flags
|= BFD_COMPRESS_GABI
;
2791 ibfd
->flags
|= BFD_DECOMPRESS
;
2797 switch (do_elf_stt_common
)
2799 case elf_stt_common
:
2800 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
2803 case no_elf_stt_common
:
2804 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
2810 if (bfd_check_format (ibfd
, bfd_archive
))
2812 bfd_boolean force_output_target
;
2815 /* bfd_get_target does not return the correct value until
2816 bfd_check_format succeeds. */
2817 if (output_target
== NULL
)
2819 output_target
= bfd_get_target (ibfd
);
2820 force_output_target
= FALSE
;
2823 force_output_target
= TRUE
;
2825 obfd
= bfd_openw (output_filename
, output_target
);
2828 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2832 /* This is a no-op on non-Coff targets. */
2833 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2835 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2837 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2842 /* bfd_get_target does not return the correct value until
2843 bfd_check_format succeeds. */
2844 if (output_target
== NULL
)
2845 output_target
= bfd_get_target (ibfd
);
2847 obfd
= bfd_openw (output_filename
, output_target
);
2850 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2854 /* This is a no-op on non-Coff targets. */
2855 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2857 if (! copy_object (ibfd
, obfd
, input_arch
))
2860 /* PR 17512: file: 0f15796a.
2861 If the file could not be copied it may not be in a writeable
2862 state. So use bfd_close_all_done to avoid the possibility of
2863 writing uninitialised data into the file. */
2864 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2867 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2871 if (!bfd_close (ibfd
))
2874 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2880 bfd_error_type obj_error
= bfd_get_error ();
2881 bfd_error_type core_error
;
2883 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2885 /* This probably can't happen.. */
2886 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2887 free (obj_matching
);
2891 core_error
= bfd_get_error ();
2892 /* Report the object error in preference to the core error. */
2893 if (obj_error
!= core_error
)
2894 bfd_set_error (obj_error
);
2896 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2898 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2900 list_matching_formats (obj_matching
);
2901 free (obj_matching
);
2903 if (core_error
== bfd_error_file_ambiguously_recognized
)
2905 list_matching_formats (core_matching
);
2906 free (core_matching
);
2913 /* Add a name to the section renaming list. */
2916 add_section_rename (const char * old_name
, const char * new_name
,
2919 section_rename
* srename
;
2921 /* Check for conflicts first. */
2922 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2923 if (strcmp (srename
->old_name
, old_name
) == 0)
2925 /* Silently ignore duplicate definitions. */
2926 if (strcmp (srename
->new_name
, new_name
) == 0
2927 && srename
->flags
== flags
)
2930 fatal (_("Multiple renames of section %s"), old_name
);
2933 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2935 srename
->old_name
= old_name
;
2936 srename
->new_name
= new_name
;
2937 srename
->flags
= flags
;
2938 srename
->next
= section_rename_list
;
2940 section_rename_list
= srename
;
2943 /* Check the section rename list for a new name of the input section
2944 called OLD_NAME. Returns the new name if one is found and sets
2945 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
2948 find_section_rename (const char *old_name
, flagword
*returned_flags
)
2950 const section_rename
*srename
;
2952 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2953 if (strcmp (srename
->old_name
, old_name
) == 0)
2955 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
2956 *returned_flags
= srename
->flags
;
2958 return srename
->new_name
;
2964 /* Once each of the sections is copied, we may still need to do some
2965 finalization work for private section headers. Do that here. */
2968 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
2970 /* Allow the BFD backend to copy any private data it understands
2971 from the input section to the output section. */
2972 if (! bfd_copy_private_header_data (ibfd
, obfd
))
2975 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2976 _("error in private header data"));
2980 /* All went well. */
2984 /* Create a section in OBFD with the same
2985 name and attributes as ISECTION in IBFD. */
2988 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2990 bfd
*obfd
= (bfd
*) obfdarg
;
2991 struct section_list
*p
;
2999 char *prefix
= NULL
;
3000 bfd_boolean make_nobits
;
3002 if (is_strip_section (ibfd
, isection
))
3005 /* Get the, possibly new, name of the output section. */
3006 name
= bfd_section_name (ibfd
, isection
);
3007 flags
= bfd_get_section_flags (ibfd
, isection
);
3008 name
= find_section_rename (name
, &flags
);
3010 /* Prefix sections. */
3011 if ((prefix_alloc_sections_string
)
3012 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3013 prefix
= prefix_alloc_sections_string
;
3014 else if (prefix_sections_string
)
3015 prefix
= prefix_sections_string
;
3021 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3027 make_nobits
= FALSE
;
3029 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3030 SECTION_CONTEXT_SET_FLAGS
);
3032 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3033 else if (strip_symbols
== STRIP_NONDEBUG
3034 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3035 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3037 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3038 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3042 /* Twiddle the input section flags so that it seems to
3043 elf.c:copy_private_bfd_data that section flags have not
3044 changed between input and output sections. This hack
3045 prevents wholesale rewriting of the program headers. */
3046 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3050 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3052 if (osection
== NULL
)
3054 err
= _("failed to create output section");
3059 elf_section_type (osection
) = SHT_NOBITS
;
3061 size
= bfd_section_size (ibfd
, isection
);
3062 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3064 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3065 else if (extract_symbol
)
3067 if (! bfd_set_section_size (obfd
, osection
, size
))
3069 err
= _("failed to set size");
3073 vma
= bfd_section_vma (ibfd
, isection
);
3074 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3075 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3078 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3084 vma
+= change_section_address
;
3086 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3088 err
= _("failed to set vma");
3092 lma
= isection
->lma
;
3093 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3094 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3097 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3103 lma
+= change_section_address
;
3105 osection
->lma
= lma
;
3107 /* FIXME: This is probably not enough. If we change the LMA we
3108 may have to recompute the header for the file as well. */
3109 if (!bfd_set_section_alignment (obfd
,
3111 bfd_section_alignment (ibfd
, isection
)))
3113 err
= _("failed to set alignment");
3117 /* Copy merge entity size. */
3118 osection
->entsize
= isection
->entsize
;
3120 /* Copy compress status. */
3121 osection
->compress_status
= isection
->compress_status
;
3123 /* This used to be mangle_section; we do here to avoid using
3124 bfd_get_section_by_name since some formats allow multiple
3125 sections with the same name. */
3126 isection
->output_section
= osection
;
3127 isection
->output_offset
= 0;
3129 if ((isection
->flags
& SEC_GROUP
) != 0)
3131 asymbol
*gsym
= group_signature (isection
);
3135 gsym
->flags
|= BSF_KEEP
;
3136 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3137 elf_group_id (isection
) = gsym
;
3141 /* Allow the BFD backend to copy any private data it understands
3142 from the input section to the output section. */
3143 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3145 err
= _("failed to copy private data");
3149 /* All went well. */
3154 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3157 /* Return TRUE if input section ISECTION should be skipped. */
3160 skip_section (bfd
*ibfd
, sec_ptr isection
)
3166 /* If we have already failed earlier on,
3167 do not keep on generating complaints now. */
3174 if (is_strip_section (ibfd
, isection
))
3177 if (is_update_section (ibfd
, isection
))
3180 flags
= bfd_get_section_flags (ibfd
, isection
);
3181 if ((flags
& SEC_GROUP
) != 0)
3184 osection
= isection
->output_section
;
3185 size
= bfd_get_section_size (isection
);
3187 if (size
== 0 || osection
== 0)
3193 /* Copy relocations in input section ISECTION of IBFD to an output
3194 section with the same name in OBFDARG. If stripping then don't
3195 copy any relocation info. */
3198 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3200 bfd
*obfd
= (bfd
*) obfdarg
;
3206 if (skip_section (ibfd
, isection
))
3209 osection
= isection
->output_section
;
3211 /* Core files and DWO files do not need to be relocated. */
3212 if (bfd_get_format (obfd
) == bfd_core
|| strip_symbols
== STRIP_NONDWO
)
3216 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3220 /* Do not complain if the target does not support relocations. */
3221 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3226 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3234 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3235 osection
->flags
&= ~SEC_RELOC
;
3239 relpp
= (arelent
**) xmalloc (relsize
);
3240 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3244 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3245 _("relocation count is negative"));
3249 if (strip_symbols
== STRIP_ALL
)
3251 /* Remove relocations which are not in
3252 keep_strip_specific_list. */
3253 arelent
**temp_relpp
;
3254 long temp_relcount
= 0;
3257 temp_relpp
= (arelent
**) xmalloc (relsize
);
3258 for (i
= 0; i
< relcount
; i
++)
3260 /* PR 17512: file: 9e907e0c. */
3261 if (relpp
[i
]->sym_ptr_ptr
3263 && * relpp
[i
]->sym_ptr_ptr
)
3264 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3265 keep_specific_htab
))
3266 temp_relpp
[temp_relcount
++] = relpp
[i
];
3268 relcount
= temp_relcount
;
3273 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3276 osection
->flags
&= ~SEC_RELOC
;
3282 /* Copy the data of input section ISECTION of IBFD
3283 to an output section with the same name in OBFD. */
3286 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3288 bfd
*obfd
= (bfd
*) obfdarg
;
3289 struct section_list
*p
;
3293 if (skip_section (ibfd
, isection
))
3296 osection
= isection
->output_section
;
3297 /* The output SHF_COMPRESSED section size is different from input if
3298 ELF classes of input and output aren't the same. We can't use
3299 the output section size since --interleave will shrink the output
3300 section. Size will be updated if the section is converted. */
3301 size
= bfd_get_section_size (isection
);
3303 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3304 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3306 bfd_byte
*memhunk
= NULL
;
3308 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3309 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3313 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3319 /* We don't handle leftover bytes (too many possible behaviors,
3320 and we don't know what the user wants). The section length
3321 must be a multiple of the number of bytes to swap. */
3322 if ((size
% reverse_bytes
) == 0)
3327 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3328 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3330 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3333 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3334 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3338 /* User must pad the section up in order to do this. */
3339 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3340 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3345 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3346 char *from
= (char *) memhunk
+ copy_byte
;
3347 char *to
= (char *) memhunk
;
3348 char *end
= (char *) memhunk
+ size
;
3351 for (; from
< end
; from
+= interleave
)
3352 for (i
= 0; i
< copy_width
; i
++)
3354 if (&from
[i
] >= end
)
3359 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3360 osection
->lma
/= interleave
;
3363 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3366 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3371 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3372 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3373 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3375 void *memhunk
= xmalloc (size
);
3377 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3378 flag--they can just remove the section entirely and add it
3379 back again. However, we do permit them to turn on the
3380 SEC_HAS_CONTENTS flag, and take it to mean that the section
3381 contents should be zeroed out. */
3383 memset (memhunk
, 0, size
);
3384 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3387 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3394 /* Get all the sections. This is used when --gap-fill or --pad-to is
3398 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3400 asection
***secppp
= (asection
***) secppparg
;
3402 **secppp
= osection
;
3406 /* Sort sections by VMA. This is called via qsort, and is used when
3407 --gap-fill or --pad-to is used. We force non loadable or empty
3408 sections to the front, where they are easier to ignore. */
3411 compare_section_lma (const void *arg1
, const void *arg2
)
3413 const asection
*const *sec1
= (const asection
* const *) arg1
;
3414 const asection
*const *sec2
= (const asection
* const *) arg2
;
3415 flagword flags1
, flags2
;
3417 /* Sort non loadable sections to the front. */
3418 flags1
= (*sec1
)->flags
;
3419 flags2
= (*sec2
)->flags
;
3420 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3421 || (flags1
& SEC_LOAD
) == 0)
3423 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3424 && (flags2
& SEC_LOAD
) != 0)
3429 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3430 || (flags2
& SEC_LOAD
) == 0)
3434 /* Sort sections by LMA. */
3435 if ((*sec1
)->lma
> (*sec2
)->lma
)
3437 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3440 /* Sort sections with the same LMA by size. */
3441 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3443 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3449 /* Mark all the symbols which will be used in output relocations with
3450 the BSF_KEEP flag so that those symbols will not be stripped.
3452 Ignore relocations which will not appear in the output file. */
3455 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3457 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3462 /* Ignore an input section with no corresponding output section. */
3463 if (isection
->output_section
== NULL
)
3466 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3469 /* Do not complain if the target does not support relocations. */
3470 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3472 bfd_fatal (bfd_get_filename (ibfd
));
3478 relpp
= (arelent
**) xmalloc (relsize
);
3479 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3481 bfd_fatal (bfd_get_filename (ibfd
));
3483 /* Examine each symbol used in a relocation. If it's not one of the
3484 special bfd section symbols, then mark it with BSF_KEEP. */
3485 for (i
= 0; i
< relcount
; i
++)
3487 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3488 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3489 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3490 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3497 /* Write out debugging information. */
3500 write_debugging_info (bfd
*obfd
, void *dhandle
,
3501 long *symcountp ATTRIBUTE_UNUSED
,
3502 asymbol
***symppp ATTRIBUTE_UNUSED
)
3504 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3505 return write_ieee_debugging_info (obfd
, dhandle
);
3507 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3508 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3510 bfd_byte
*syms
, *strings
;
3511 bfd_size_type symsize
, stringsize
;
3512 asection
*stabsec
, *stabstrsec
;
3515 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3520 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3521 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3522 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3524 || stabstrsec
== NULL
3525 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3526 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3527 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3528 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3530 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3531 _("can't create debugging section"));
3535 /* We can get away with setting the section contents now because
3536 the next thing the caller is going to do is copy over the
3537 real sections. We may someday have to split the contents
3538 setting out of this function. */
3539 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3540 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3543 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3544 _("can't set debugging section contents"));
3551 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3552 _("don't know how to write debugging information for %s"),
3553 bfd_get_target (obfd
));
3557 /* If neither -D nor -U was specified explicitly,
3558 then use the configured default. */
3560 default_deterministic (void)
3562 if (deterministic
< 0)
3563 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3567 strip_main (int argc
, char *argv
[])
3569 char *input_target
= NULL
;
3570 char *output_target
= NULL
;
3571 bfd_boolean show_version
= FALSE
;
3572 bfd_boolean formats_info
= FALSE
;
3575 char *output_file
= NULL
;
3577 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3578 strip_options
, (int *) 0)) != EOF
)
3583 input_target
= optarg
;
3586 output_target
= optarg
;
3589 input_target
= output_target
= optarg
;
3592 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3593 sections_removed
= TRUE
;
3596 strip_symbols
= STRIP_ALL
;
3600 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3601 strip_symbols
= STRIP_DEBUG
;
3603 case OPTION_STRIP_DWO
:
3604 strip_symbols
= STRIP_DWO
;
3606 case OPTION_STRIP_UNNEEDED
:
3607 strip_symbols
= STRIP_UNNEEDED
;
3610 add_specific_symbol (optarg
, keep_specific_htab
);
3613 add_specific_symbol (optarg
, strip_specific_htab
);
3616 output_file
= optarg
;
3619 preserve_dates
= TRUE
;
3622 deterministic
= TRUE
;
3625 deterministic
= FALSE
;
3628 discard_locals
= LOCALS_ALL
;
3631 discard_locals
= LOCALS_START_L
;
3637 show_version
= TRUE
;
3639 case OPTION_FORMATS_INFO
:
3640 formats_info
= TRUE
;
3642 case OPTION_ONLY_KEEP_DEBUG
:
3643 strip_symbols
= STRIP_NONDEBUG
;
3645 case OPTION_KEEP_FILE_SYMBOLS
:
3646 keep_file_symbols
= 1;
3649 /* We've been given a long option. */
3656 strip_usage (stdout
, 0);
3658 strip_usage (stderr
, 1);
3669 print_version ("strip");
3671 default_deterministic ();
3673 /* Default is to strip all symbols. */
3674 if (strip_symbols
== STRIP_UNDEF
3675 && discard_locals
== LOCALS_UNDEF
3676 && htab_elements (strip_specific_htab
) == 0)
3677 strip_symbols
= STRIP_ALL
;
3679 if (output_target
== NULL
)
3680 output_target
= input_target
;
3684 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3685 strip_usage (stderr
, 1);
3687 for (; i
< argc
; i
++)
3689 int hold_status
= status
;
3690 struct stat statbuf
;
3693 if (get_file_size (argv
[i
]) < 1)
3700 /* No need to check the return value of stat().
3701 It has already been checked in get_file_size(). */
3702 stat (argv
[i
], &statbuf
);
3704 if (output_file
== NULL
3705 || filename_cmp (argv
[i
], output_file
) == 0)
3706 tmpname
= make_tempname (argv
[i
]);
3708 tmpname
= output_file
;
3710 if (tmpname
== NULL
)
3712 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3713 _("could not create temporary file to hold stripped copy"));
3719 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3723 set_times (tmpname
, &statbuf
);
3724 if (output_file
!= tmpname
)
3725 status
= (smart_rename (tmpname
,
3726 output_file
? output_file
: argv
[i
],
3727 preserve_dates
) != 0);
3729 status
= hold_status
;
3732 unlink_if_ordinary (tmpname
);
3733 if (output_file
!= tmpname
)
3740 /* Set up PE subsystem. */
3743 set_pe_subsystem (const char *s
)
3745 const char *version
, *subsystem
;
3755 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3756 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3757 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3758 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3759 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3760 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3761 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3762 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3763 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3764 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3770 /* Check for the presence of a version number. */
3771 version
= strchr (s
, ':');
3772 if (version
== NULL
)
3776 int len
= version
- s
;
3780 version
= copy
+ 1 + len
;
3781 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3783 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3785 non_fatal (_("%s: bad version in PE subsystem"), s
);
3788 /* Check for numeric subsystem. */
3789 value
= (short) strtol (subsystem
, ©
, 0);
3792 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3793 if (v
[i
].value
== value
)
3795 pe_subsystem
= value
;
3796 set_def
= v
[i
].set_def
;
3802 /* Search for subsystem by name. */
3803 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3804 if (strcmp (subsystem
, v
[i
].name
) == 0)
3806 pe_subsystem
= v
[i
].value
;
3807 set_def
= v
[i
].set_def
;
3815 fatal (_("unknown PE subsystem: %s"), s
);
3820 if (pe_file_alignment
== (bfd_vma
) -1)
3821 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3822 if (pe_section_alignment
== (bfd_vma
) -1)
3823 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3827 free ((char *) subsystem
);
3830 /* Convert EFI target to PEI target. */
3833 convert_efi_target (char *efi
)
3839 if (strcmp (efi
+ 4, "ia32") == 0)
3841 /* Change ia32 to i386. */
3846 else if (strcmp (efi
+ 4, "x86_64") == 0)
3848 /* Change x86_64 to x86-64. */
3853 /* Allocate and return a pointer to a struct section_add, initializing the
3854 structure using ARG, a string in the format "sectionname=filename".
3855 The returned structure will have its next pointer set to NEXT. The
3856 OPTION field is the name of the command line option currently being
3857 parsed, and is only used if an error needs to be reported. */
3859 static struct section_add
*
3860 init_section_add (const char *arg
,
3861 struct section_add
*next
,
3864 struct section_add
*pa
;
3867 s
= strchr (arg
, '=');
3869 fatal (_("bad format for %s"), option
);
3871 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3872 pa
->name
= xstrndup (arg
, s
- arg
);
3873 pa
->filename
= s
+ 1;
3875 pa
->contents
= NULL
;
3881 /* Load the file specified in PA, allocating memory to hold the file
3882 contents, and store a pointer to the allocated memory in the contents
3883 field of PA. The size field of PA is also updated. All errors call
3887 section_add_load_file (struct section_add
*pa
)
3892 /* We don't use get_file_size so that we can do
3893 --add-section .note.GNU_stack=/dev/null
3894 get_file_size doesn't work on /dev/null. */
3896 f
= fopen (pa
->filename
, FOPEN_RB
);
3898 fatal (_("cannot open: %s: %s"),
3899 pa
->filename
, strerror (errno
));
3903 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3911 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3914 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3916 fatal (_("%s: fread failed"), pa
->filename
);
3927 copy_main (int argc
, char *argv
[])
3929 char *input_filename
= NULL
;
3930 char *output_filename
= NULL
;
3932 char *input_target
= NULL
;
3933 char *output_target
= NULL
;
3934 bfd_boolean show_version
= FALSE
;
3935 bfd_boolean change_warn
= TRUE
;
3936 bfd_boolean formats_info
= FALSE
;
3938 struct stat statbuf
;
3939 const bfd_arch_info_type
*input_arch
= NULL
;
3941 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3942 copy_options
, (int *) 0)) != EOF
)
3947 copy_byte
= atoi (optarg
);
3949 fatal (_("byte number must be non-negative"));
3953 input_arch
= bfd_scan_arch (optarg
);
3954 if (input_arch
== NULL
)
3955 fatal (_("architecture %s unknown"), optarg
);
3961 interleave
= atoi (optarg
);
3963 fatal (_("interleave must be positive"));
3969 case OPTION_INTERLEAVE_WIDTH
:
3970 copy_width
= atoi (optarg
);
3972 fatal(_("interleave width must be positive"));
3976 case 's': /* "source" - 'I' is preferred */
3977 input_target
= optarg
;
3981 case 'd': /* "destination" - 'O' is preferred */
3982 output_target
= optarg
;
3986 input_target
= output_target
= optarg
;
3990 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
3991 sections_copied
= TRUE
;
3995 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3996 sections_removed
= TRUE
;
4000 strip_symbols
= STRIP_ALL
;
4004 strip_symbols
= STRIP_DEBUG
;
4007 case OPTION_STRIP_DWO
:
4008 strip_symbols
= STRIP_DWO
;
4011 case OPTION_STRIP_UNNEEDED
:
4012 strip_symbols
= STRIP_UNNEEDED
;
4015 case OPTION_ONLY_KEEP_DEBUG
:
4016 strip_symbols
= STRIP_NONDEBUG
;
4019 case OPTION_KEEP_FILE_SYMBOLS
:
4020 keep_file_symbols
= 1;
4023 case OPTION_ADD_GNU_DEBUGLINK
:
4024 long_section_names
= ENABLE
;
4025 gnu_debuglink_filename
= optarg
;
4029 add_specific_symbol (optarg
, keep_specific_htab
);
4033 add_specific_symbol (optarg
, strip_specific_htab
);
4036 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4037 add_specific_symbol (optarg
, strip_unneeded_htab
);
4041 add_specific_symbol (optarg
, localize_specific_htab
);
4044 case OPTION_GLOBALIZE_SYMBOL
:
4045 add_specific_symbol (optarg
, globalize_specific_htab
);
4049 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4053 add_specific_symbol (optarg
, weaken_specific_htab
);
4057 preserve_dates
= TRUE
;
4061 deterministic
= TRUE
;
4065 deterministic
= FALSE
;
4073 discard_locals
= LOCALS_ALL
;
4077 discard_locals
= LOCALS_START_L
;
4085 show_version
= TRUE
;
4088 case OPTION_FORMATS_INFO
:
4089 formats_info
= TRUE
;
4096 case OPTION_ADD_SECTION
:
4097 add_sections
= init_section_add (optarg
, add_sections
,
4099 section_add_load_file (add_sections
);
4102 case OPTION_UPDATE_SECTION
:
4103 update_sections
= init_section_add (optarg
, update_sections
,
4104 "--update-section");
4105 section_add_load_file (update_sections
);
4108 case OPTION_DUMP_SECTION
:
4109 dump_sections
= init_section_add (optarg
, dump_sections
,
4113 case OPTION_ADD_SYMBOL
:
4116 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4118 newsym
->next
= NULL
;
4119 s
= strchr (optarg
, '=');
4121 fatal (_("bad format for %s"), "--add-symbol");
4122 t
= strchr (s
+ 1, ':');
4124 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4127 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4128 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4132 newsym
->section
= NULL
;
4133 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4137 t
= strchr (t
+ 1, ',');
4138 newsym
->othersym
= NULL
;
4140 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4142 newsym
->flags
= BSF_GLOBAL
;
4144 /* Keep 'othersym' symbols at the front of the list. */
4145 if (newsym
->othersym
)
4147 newsym
->next
= add_sym_list
;
4149 add_sym_tail
= &newsym
->next
;
4150 add_sym_list
= newsym
;
4154 *add_sym_tail
= newsym
;
4155 add_sym_tail
= &newsym
->next
;
4161 case OPTION_CHANGE_START
:
4162 change_start
= parse_vma (optarg
, "--change-start");
4165 case OPTION_CHANGE_SECTION_ADDRESS
:
4166 case OPTION_CHANGE_SECTION_LMA
:
4167 case OPTION_CHANGE_SECTION_VMA
:
4169 struct section_list
* p
;
4170 unsigned int context
= 0;
4174 char *option
= NULL
;
4179 case OPTION_CHANGE_SECTION_ADDRESS
:
4180 option
= "--change-section-address";
4181 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4183 case OPTION_CHANGE_SECTION_LMA
:
4184 option
= "--change-section-lma";
4185 context
= SECTION_CONTEXT_ALTER_LMA
;
4187 case OPTION_CHANGE_SECTION_VMA
:
4188 option
= "--change-section-vma";
4189 context
= SECTION_CONTEXT_ALTER_VMA
;
4193 s
= strchr (optarg
, '=');
4196 s
= strchr (optarg
, '+');
4199 s
= strchr (optarg
, '-');
4201 fatal (_("bad format for %s"), option
);
4206 /* Correct the context. */
4209 case OPTION_CHANGE_SECTION_ADDRESS
:
4210 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4212 case OPTION_CHANGE_SECTION_LMA
:
4213 context
= SECTION_CONTEXT_SET_LMA
;
4215 case OPTION_CHANGE_SECTION_VMA
:
4216 context
= SECTION_CONTEXT_SET_VMA
;
4222 name
= (char *) xmalloc (len
+ 1);
4223 strncpy (name
, optarg
, len
);
4226 p
= find_section_list (name
, TRUE
, context
);
4228 val
= parse_vma (s
+ 1, option
);
4234 case OPTION_CHANGE_SECTION_ADDRESS
:
4238 case OPTION_CHANGE_SECTION_LMA
:
4242 case OPTION_CHANGE_SECTION_VMA
:
4249 case OPTION_CHANGE_ADDRESSES
:
4250 change_section_address
= parse_vma (optarg
, "--change-addresses");
4251 change_start
= change_section_address
;
4254 case OPTION_CHANGE_WARNINGS
:
4258 case OPTION_CHANGE_LEADING_CHAR
:
4259 change_leading_char
= TRUE
;
4262 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4265 if (strcasecmp (optarg
, "none") == 0)
4266 do_debug_sections
= decompress
;
4267 else if (strcasecmp (optarg
, "zlib") == 0)
4268 do_debug_sections
= compress_zlib
;
4269 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4270 do_debug_sections
= compress_gnu_zlib
;
4271 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4272 do_debug_sections
= compress_gabi_zlib
;
4274 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4278 do_debug_sections
= compress
;
4281 case OPTION_DEBUGGING
:
4282 convert_debugging
= TRUE
;
4285 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4286 do_debug_sections
= decompress
;
4289 case OPTION_ELF_STT_COMMON
:
4290 if (strcasecmp (optarg
, "yes") == 0)
4291 do_elf_stt_common
= elf_stt_common
;
4292 else if (strcasecmp (optarg
, "no") == 0)
4293 do_elf_stt_common
= no_elf_stt_common
;
4295 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4299 case OPTION_GAP_FILL
:
4301 bfd_vma gap_fill_vma
;
4303 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4304 gap_fill
= (bfd_byte
) gap_fill_vma
;
4305 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4309 sprintf_vma (buff
, gap_fill_vma
);
4311 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4314 gap_fill_set
= TRUE
;
4318 case OPTION_NO_CHANGE_WARNINGS
:
4319 change_warn
= FALSE
;
4323 pad_to
= parse_vma (optarg
, "--pad-to");
4327 case OPTION_REMOVE_LEADING_CHAR
:
4328 remove_leading_char
= TRUE
;
4331 case OPTION_REDEFINE_SYM
:
4333 /* Push this redefinition onto redefine_symbol_list. */
4337 const char *nextarg
;
4338 char *source
, *target
;
4340 s
= strchr (optarg
, '=');
4342 fatal (_("bad format for %s"), "--redefine-sym");
4345 source
= (char *) xmalloc (len
+ 1);
4346 strncpy (source
, optarg
, len
);
4350 len
= strlen (nextarg
);
4351 target
= (char *) xmalloc (len
+ 1);
4352 strcpy (target
, nextarg
);
4354 redefine_list_append ("--redefine-sym", source
, target
);
4361 case OPTION_REDEFINE_SYMS
:
4362 add_redefine_syms_file (optarg
);
4365 case OPTION_SET_SECTION_FLAGS
:
4367 struct section_list
*p
;
4372 s
= strchr (optarg
, '=');
4374 fatal (_("bad format for %s"), "--set-section-flags");
4377 name
= (char *) xmalloc (len
+ 1);
4378 strncpy (name
, optarg
, len
);
4381 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4383 p
->flags
= parse_flags (s
+ 1);
4387 case OPTION_RENAME_SECTION
:
4390 const char *eq
, *fl
;
4395 eq
= strchr (optarg
, '=');
4397 fatal (_("bad format for %s"), "--rename-section");
4401 fatal (_("bad format for %s"), "--rename-section");
4403 old_name
= (char *) xmalloc (len
+ 1);
4404 strncpy (old_name
, optarg
, len
);
4408 fl
= strchr (eq
, ',');
4411 flags
= parse_flags (fl
+ 1);
4421 fatal (_("bad format for %s"), "--rename-section");
4423 new_name
= (char *) xmalloc (len
+ 1);
4424 strncpy (new_name
, eq
, len
);
4427 add_section_rename (old_name
, new_name
, flags
);
4431 case OPTION_SET_START
:
4432 set_start
= parse_vma (optarg
, "--set-start");
4433 set_start_set
= TRUE
;
4436 case OPTION_SREC_LEN
:
4437 Chunk
= parse_vma (optarg
, "--srec-len");
4440 case OPTION_SREC_FORCES3
:
4444 case OPTION_STRIP_SYMBOLS
:
4445 add_specific_symbols (optarg
, strip_specific_htab
);
4448 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4449 add_specific_symbols (optarg
, strip_unneeded_htab
);
4452 case OPTION_KEEP_SYMBOLS
:
4453 add_specific_symbols (optarg
, keep_specific_htab
);
4456 case OPTION_LOCALIZE_HIDDEN
:
4457 localize_hidden
= TRUE
;
4460 case OPTION_LOCALIZE_SYMBOLS
:
4461 add_specific_symbols (optarg
, localize_specific_htab
);
4464 case OPTION_LONG_SECTION_NAMES
:
4465 if (!strcmp ("enable", optarg
))
4466 long_section_names
= ENABLE
;
4467 else if (!strcmp ("disable", optarg
))
4468 long_section_names
= DISABLE
;
4469 else if (!strcmp ("keep", optarg
))
4470 long_section_names
= KEEP
;
4472 fatal (_("unknown long section names option '%s'"), optarg
);
4475 case OPTION_GLOBALIZE_SYMBOLS
:
4476 add_specific_symbols (optarg
, globalize_specific_htab
);
4479 case OPTION_KEEPGLOBAL_SYMBOLS
:
4480 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4483 case OPTION_WEAKEN_SYMBOLS
:
4484 add_specific_symbols (optarg
, weaken_specific_htab
);
4487 case OPTION_ALT_MACH_CODE
:
4488 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4489 if (use_alt_mach_code
== 0)
4490 fatal (_("unable to parse alternative machine code"));
4493 case OPTION_PREFIX_SYMBOLS
:
4494 prefix_symbols_string
= optarg
;
4497 case OPTION_PREFIX_SECTIONS
:
4498 prefix_sections_string
= optarg
;
4501 case OPTION_PREFIX_ALLOC_SECTIONS
:
4502 prefix_alloc_sections_string
= optarg
;
4505 case OPTION_READONLY_TEXT
:
4506 bfd_flags_to_set
|= WP_TEXT
;
4507 bfd_flags_to_clear
&= ~WP_TEXT
;
4510 case OPTION_WRITABLE_TEXT
:
4511 bfd_flags_to_clear
|= WP_TEXT
;
4512 bfd_flags_to_set
&= ~WP_TEXT
;
4516 bfd_flags_to_set
|= D_PAGED
;
4517 bfd_flags_to_clear
&= ~D_PAGED
;
4521 bfd_flags_to_clear
|= D_PAGED
;
4522 bfd_flags_to_set
&= ~D_PAGED
;
4525 case OPTION_EXTRACT_DWO
:
4526 strip_symbols
= STRIP_NONDWO
;
4529 case OPTION_EXTRACT_SYMBOL
:
4530 extract_symbol
= TRUE
;
4533 case OPTION_REVERSE_BYTES
:
4535 int prev
= reverse_bytes
;
4537 reverse_bytes
= atoi (optarg
);
4538 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4539 fatal (_("number of bytes to reverse must be positive and even"));
4541 if (prev
&& prev
!= reverse_bytes
)
4542 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4547 case OPTION_FILE_ALIGNMENT
:
4548 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4554 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4556 || (*end
!= '.' && *end
!= '\0'))
4557 non_fatal (_("%s: invalid reserve value for --heap"),
4559 else if (*end
!= '\0')
4561 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4563 non_fatal (_("%s: invalid commit value for --heap"),
4569 case OPTION_IMAGE_BASE
:
4570 pe_image_base
= parse_vma (optarg
, "--image-base");
4573 case OPTION_SECTION_ALIGNMENT
:
4574 pe_section_alignment
= parse_vma (optarg
,
4575 "--section-alignment");
4578 case OPTION_SUBSYSTEM
:
4579 set_pe_subsystem (optarg
);
4585 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4587 || (*end
!= '.' && *end
!= '\0'))
4588 non_fatal (_("%s: invalid reserve value for --stack"),
4590 else if (*end
!= '\0')
4592 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4594 non_fatal (_("%s: invalid commit value for --stack"),
4601 /* We've been given a long option. */
4606 copy_usage (stdout
, 0);
4609 copy_usage (stderr
, 1);
4620 print_version ("objcopy");
4622 if (interleave
&& copy_byte
== -1)
4623 fatal (_("interleave start byte must be set with --byte"));
4625 if (copy_byte
>= interleave
)
4626 fatal (_("byte number must be less than interleave"));
4628 if (copy_width
> interleave
- copy_byte
)
4629 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4631 if (optind
== argc
|| optind
+ 2 < argc
)
4632 copy_usage (stderr
, 1);
4634 input_filename
= argv
[optind
];
4635 if (optind
+ 1 < argc
)
4636 output_filename
= argv
[optind
+ 1];
4638 default_deterministic ();
4640 /* Default is to strip no symbols. */
4641 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4642 strip_symbols
= STRIP_NONE
;
4644 if (output_target
== NULL
)
4645 output_target
= input_target
;
4647 /* Convert input EFI target to PEI target. */
4648 if (input_target
!= NULL
4649 && strncmp (input_target
, "efi-", 4) == 0)
4653 efi
= xstrdup (output_target
+ 4);
4654 if (strncmp (efi
, "bsdrv-", 6) == 0
4655 || strncmp (efi
, "rtdrv-", 6) == 0)
4657 else if (strncmp (efi
, "app-", 4) != 0)
4658 fatal (_("unknown input EFI target: %s"), input_target
);
4661 convert_efi_target (efi
);
4664 /* Convert output EFI target to PEI target. */
4665 if (output_target
!= NULL
4666 && strncmp (output_target
, "efi-", 4) == 0)
4670 efi
= xstrdup (output_target
+ 4);
4671 if (strncmp (efi
, "app-", 4) == 0)
4673 if (pe_subsystem
== -1)
4674 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4676 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4678 if (pe_subsystem
== -1)
4679 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4682 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4684 if (pe_subsystem
== -1)
4685 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4689 fatal (_("unknown output EFI target: %s"), output_target
);
4691 if (pe_file_alignment
== (bfd_vma
) -1)
4692 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4693 if (pe_section_alignment
== (bfd_vma
) -1)
4694 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4696 output_target
= efi
;
4697 convert_efi_target (efi
);
4701 if (stat (input_filename
, & statbuf
) < 0)
4702 fatal (_("warning: could not locate '%s'. System error message: %s"),
4703 input_filename
, strerror (errno
));
4705 /* If there is no destination file, or the source and destination files
4706 are the same, then create a temp and rename the result into the input. */
4707 if (output_filename
== NULL
4708 || filename_cmp (input_filename
, output_filename
) == 0)
4709 tmpname
= make_tempname (input_filename
);
4711 tmpname
= output_filename
;
4713 if (tmpname
== NULL
)
4714 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4715 input_filename
, strerror (errno
));
4717 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4721 set_times (tmpname
, &statbuf
);
4722 if (tmpname
!= output_filename
)
4723 status
= (smart_rename (tmpname
, input_filename
,
4724 preserve_dates
) != 0);
4727 unlink_if_ordinary (tmpname
);
4731 struct section_list
*p
;
4733 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4737 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4741 sprintf_vma (buff
, p
->vma_val
);
4743 /* xgettext:c-format */
4744 non_fatal (_("%s %s%c0x%s never used"),
4745 "--change-section-vma",
4747 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4751 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4755 sprintf_vma (buff
, p
->lma_val
);
4757 /* xgettext:c-format */
4758 non_fatal (_("%s %s%c0x%s never used"),
4759 "--change-section-lma",
4761 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4772 main (int argc
, char *argv
[])
4774 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4775 setlocale (LC_MESSAGES
, "");
4777 #if defined (HAVE_SETLOCALE)
4778 setlocale (LC_CTYPE
, "");
4780 bindtextdomain (PACKAGE
, LOCALEDIR
);
4781 textdomain (PACKAGE
);
4783 program_name
= argv
[0];
4784 xmalloc_set_program_name (program_name
);
4786 START_PROGRESS (program_name
, 0);
4788 expandargv (&argc
, &argv
);
4790 strip_symbols
= STRIP_UNDEF
;
4791 discard_locals
= LOCALS_UNDEF
;
4794 set_default_bfd_target ();
4798 int i
= strlen (program_name
);
4799 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4800 /* Drop the .exe suffix, if any. */
4801 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4804 program_name
[i
] = '\0';
4807 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4810 create_symbol_htabs ();
4813 bfd_set_error_program_name (argv
[0]);
4816 strip_main (argc
, argv
);
4818 copy_main (argc
, argv
);
4820 END_PROGRESS (program_name
);