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_discard 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 *);
512 copy_usage (FILE *stream
, int exit_status
)
514 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
515 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
516 fprintf (stream
, _(" The options are:\n"));
517 fprintf (stream
, _("\
518 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
519 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
520 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
521 -F --target <bfdname> Set both input and output format to <bfdname>\n\
522 --debugging Convert debugging information, if possible\n\
523 -p --preserve-dates Copy modified/access timestamps to the output\n"));
524 if (DEFAULT_AR_DETERMINISTIC
)
525 fprintf (stream
, _("\
526 -D --enable-deterministic-archives\n\
527 Produce deterministic output when stripping archives (default)\n\
528 -U --disable-deterministic-archives\n\
529 Disable -D behavior\n"));
531 fprintf (stream
, _("\
532 -D --enable-deterministic-archives\n\
533 Produce deterministic output when stripping archives\n\
534 -U --disable-deterministic-archives\n\
535 Disable -D behavior (default)\n"));
536 fprintf (stream
, _("\
537 -j --only-section <name> Only copy section <name> into the output\n\
538 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
539 -R --remove-section <name> Remove section <name> from the output\n\
540 -S --strip-all Remove all symbol and relocation information\n\
541 -g --strip-debug Remove all debugging symbols & sections\n\
542 --strip-dwo Remove all DWO sections\n\
543 --strip-unneeded Remove all symbols not needed by relocations\n\
544 -N --strip-symbol <name> Do not copy symbol <name>\n\
545 --strip-unneeded-symbol <name>\n\
546 Do not copy symbol <name> unless needed by\n\
548 --only-keep-debug Strip everything but the debug information\n\
549 --extract-dwo Copy only DWO sections\n\
550 --extract-symbol Remove section contents but keep symbols\n\
551 -K --keep-symbol <name> Do not strip symbol <name>\n\
552 --keep-file-symbols Do not strip file symbol(s)\n\
553 --localize-hidden Turn all ELF hidden symbols into locals\n\
554 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
555 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
556 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
557 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
558 --weaken Force all global symbols to be marked as weak\n\
559 -w --wildcard Permit wildcard in symbol comparison\n\
560 -x --discard-all Remove all non-global symbols\n\
561 -X --discard-locals Remove any compiler-generated symbols\n\
562 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
563 --interleave-width <number> Set N for --interleave\n\
564 -b --byte <num> Select byte <num> in every interleaved block\n\
565 --gap-fill <val> Fill gaps between sections with <val>\n\
566 --pad-to <addr> Pad the last section up to address <addr>\n\
567 --set-start <addr> Set the start address to <addr>\n\
568 {--change-start|--adjust-start} <incr>\n\
569 Add <incr> to the start address\n\
570 {--change-addresses|--adjust-vma} <incr>\n\
571 Add <incr> to LMA, VMA and start addresses\n\
572 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
573 Change LMA and VMA of section <name> by <val>\n\
574 --change-section-lma <name>{=|+|-}<val>\n\
575 Change the LMA of section <name> by <val>\n\
576 --change-section-vma <name>{=|+|-}<val>\n\
577 Change the VMA of section <name> by <val>\n\
578 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
579 Warn if a named section does not exist\n\
580 --set-section-flags <name>=<flags>\n\
581 Set section <name>'s properties to <flags>\n\
582 --add-section <name>=<file> Add section <name> found in <file> to output\n\
583 --update-section <name>=<file>\n\
584 Update contents of section <name> with\n\
585 contents found in <file>\n\
586 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
587 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
588 --long-section-names {enable|disable|keep}\n\
589 Handle long section names in Coff objects.\n\
590 --change-leading-char Force output format's leading character style\n\
591 --remove-leading-char Remove leading character from global symbols\n\
592 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
593 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
594 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
596 --srec-len <number> Restrict the length of generated Srecords\n\
597 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
598 --strip-symbols <file> -N for all symbols listed in <file>\n\
599 --strip-unneeded-symbols <file>\n\
600 --strip-unneeded-symbol for all symbols listed\n\
602 --keep-symbols <file> -K for all symbols listed in <file>\n\
603 --localize-symbols <file> -L for all symbols listed in <file>\n\
604 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
605 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
606 --weaken-symbols <file> -W for all symbols listed in <file>\n\
607 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
608 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
609 --writable-text Mark the output text as writable\n\
610 --readonly-text Make the output text write protected\n\
611 --pure Mark the output file as demand paged\n\
612 --impure Mark the output file as impure\n\
613 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
614 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
615 --prefix-alloc-sections <prefix>\n\
616 Add <prefix> to start of every allocatable\n\
618 --file-alignment <num> Set PE file alignment to <num>\n\
619 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
621 --image-base <address> Set PE image base to <address>\n\
622 --section-alignment <num> Set PE section alignment to <num>\n\
623 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
625 --subsystem <name>[:<version>]\n\
626 Set PE subsystem to <name> [& <version>]\n\
627 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
628 Compress DWARF debug sections using zlib\n\
629 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
630 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
632 -v --verbose List all object files modified\n\
633 @<file> Read options from <file>\n\
634 -V --version Display this program's version number\n\
635 -h --help Display this output\n\
636 --info List object formats & architectures supported\n\
638 list_supported_targets (program_name
, stream
);
639 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
640 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
645 strip_usage (FILE *stream
, int exit_status
)
647 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
648 fprintf (stream
, _(" Removes symbols and sections from files\n"));
649 fprintf (stream
, _(" The options are:\n"));
650 fprintf (stream
, _("\
651 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
652 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
653 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
654 -p --preserve-dates Copy modified/access timestamps to the output\n\
656 if (DEFAULT_AR_DETERMINISTIC
)
657 fprintf (stream
, _("\
658 -D --enable-deterministic-archives\n\
659 Produce deterministic output when stripping archives (default)\n\
660 -U --disable-deterministic-archives\n\
661 Disable -D behavior\n"));
663 fprintf (stream
, _("\
664 -D --enable-deterministic-archives\n\
665 Produce deterministic output when stripping archives\n\
666 -U --disable-deterministic-archives\n\
667 Disable -D behavior (default)\n"));
668 fprintf (stream
, _("\
669 -R --remove-section=<name> Also remove section <name> from the output\n\
670 -s --strip-all Remove all symbol and relocation information\n\
671 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
672 --strip-dwo Remove all DWO sections\n\
673 --strip-unneeded Remove all symbols not needed by relocations\n\
674 --only-keep-debug Strip everything but the debug information\n\
675 -N --strip-symbol=<name> Do not copy symbol <name>\n\
676 -K --keep-symbol=<name> Do not strip symbol <name>\n\
677 --keep-file-symbols Do not strip file symbol(s)\n\
678 -w --wildcard Permit wildcard in symbol comparison\n\
679 -x --discard-all Remove all non-global symbols\n\
680 -X --discard-locals Remove any compiler-generated symbols\n\
681 -v --verbose List all object files modified\n\
682 -V --version Display this program's version number\n\
683 -h --help Display this output\n\
684 --info List object formats & architectures supported\n\
685 -o <file> Place stripped output into <file>\n\
688 list_supported_targets (program_name
, stream
);
689 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
690 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
694 /* Parse section flags into a flagword, with a fatal error if the
695 string can't be parsed. */
698 parse_flags (const char *s
)
708 snext
= strchr (s
, ',');
718 #define PARSE_FLAG(fname,fval) \
719 else if (strncasecmp (fname, s, len) == 0) ret |= fval
720 PARSE_FLAG ("alloc", SEC_ALLOC
);
721 PARSE_FLAG ("load", SEC_LOAD
);
722 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
723 PARSE_FLAG ("readonly", SEC_READONLY
);
724 PARSE_FLAG ("debug", SEC_DEBUGGING
);
725 PARSE_FLAG ("code", SEC_CODE
);
726 PARSE_FLAG ("data", SEC_DATA
);
727 PARSE_FLAG ("rom", SEC_ROM
);
728 PARSE_FLAG ("share", SEC_COFF_SHARED
);
729 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
730 PARSE_FLAG ("merge", SEC_MERGE
);
731 PARSE_FLAG ("strings", SEC_STRINGS
);
737 copy
= (char *) xmalloc (len
+ 1);
738 strncpy (copy
, s
, len
);
740 non_fatal (_("unrecognized section flag `%s'"), copy
);
741 fatal (_("supported flags: %s"),
742 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
752 /* Parse symbol flags into a flagword, with a fatal error if the
753 string can't be parsed. */
756 parse_symflags (const char *s
, char **other
)
766 snext
= strchr (s
, ',');
775 #define PARSE_FLAG(fname, fval) \
776 else if (len == sizeof fname - 1 \
777 && strncasecmp (fname, s, len) == 0) \
780 #define PARSE_OTHER(fname, fval) \
781 else if (len >= sizeof fname \
782 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
783 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
786 PARSE_FLAG ("local", BSF_LOCAL
);
787 PARSE_FLAG ("global", BSF_GLOBAL
);
788 PARSE_FLAG ("export", BSF_EXPORT
);
789 PARSE_FLAG ("debug", BSF_DEBUGGING
);
790 PARSE_FLAG ("function", BSF_FUNCTION
);
791 PARSE_FLAG ("weak", BSF_WEAK
);
792 PARSE_FLAG ("section", BSF_SECTION_SYM
);
793 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
794 PARSE_FLAG ("warning", BSF_WARNING
);
795 PARSE_FLAG ("indirect", BSF_INDIRECT
);
796 PARSE_FLAG ("file", BSF_FILE
);
797 PARSE_FLAG ("object", BSF_OBJECT
);
798 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
799 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
800 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
801 PARSE_OTHER ("before=", *other
);
809 copy
= (char *) xmalloc (len
+ 1);
810 strncpy (copy
, s
, len
);
812 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
813 fatal (_("supported flags: %s"),
814 "local, global, export, debug, function, weak, section, "
815 "constructor, warning, indirect, file, object, synthetic, "
816 "indirect-function, unique-object, before=<othersym>");
826 /* Find and optionally add an entry in the change_sections list.
828 We need to be careful in how we match section names because of the support
829 for wildcard characters. For example suppose that the user has invoked
832 --set-section-flags .debug_*=debug
833 --set-section-flags .debug_str=readonly,debug
834 --change-section-address .debug_*ranges=0x1000
836 With the idea that all debug sections will receive the DEBUG flag, the
837 .debug_str section will also receive the READONLY flag and the
838 .debug_ranges and .debug_aranges sections will have their address set to
839 0x1000. (This may not make much sense, but it is just an example).
841 When adding the section name patterns to the section list we need to make
842 sure that previous entries do not match with the new entry, unless the
843 match is exact. (In which case we assume that the user is overriding
844 the previous entry with the new context).
846 When matching real section names to the section list we make use of the
847 wildcard characters, but we must do so in context. Eg if we are setting
848 section addresses then we match for .debug_ranges but not for .debug_info.
850 Finally, if ADD is false and we do find a match, we mark the section list
853 static struct section_list
*
854 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
856 struct section_list
*p
;
858 /* assert ((context & ((1 << 7) - 1)) != 0); */
860 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
864 if (strcmp (p
->pattern
, name
) == 0)
866 /* Check for context conflicts. */
867 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
868 && (context
& SECTION_CONTEXT_COPY
))
869 || ((context
& SECTION_CONTEXT_REMOVE
)
870 && (p
->context
& SECTION_CONTEXT_COPY
)))
871 fatal (_("error: %s both copied and removed"), name
);
873 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
874 && (context
& SECTION_CONTEXT_ALTER_VMA
))
875 || ((context
& SECTION_CONTEXT_SET_VMA
)
876 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
877 fatal (_("error: %s both sets and alters VMA"), name
);
879 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
880 && (context
& SECTION_CONTEXT_ALTER_LMA
))
881 || ((context
& SECTION_CONTEXT_SET_LMA
)
882 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
883 fatal (_("error: %s both sets and alters LMA"), name
);
885 /* Extend the context. */
886 p
->context
|= context
;
890 /* If we are not adding a new name/pattern then
891 only check for a match if the context applies. */
892 else if ((p
->context
& context
)
893 /* We could check for the presence of wildchar characters
894 first and choose between calling strcmp and fnmatch,
895 but is that really worth it ? */
896 && fnmatch (p
->pattern
, name
, 0) == 0)
906 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
909 p
->context
= context
;
913 p
->next
= change_sections
;
919 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
922 eq_string (const void *s1
, const void *s2
)
924 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
928 create_symbol_htab (void)
930 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
934 create_symbol_htabs (void)
936 strip_specific_htab
= create_symbol_htab ();
937 strip_unneeded_htab
= create_symbol_htab ();
938 keep_specific_htab
= create_symbol_htab ();
939 localize_specific_htab
= create_symbol_htab ();
940 globalize_specific_htab
= create_symbol_htab ();
941 keepglobal_specific_htab
= create_symbol_htab ();
942 weaken_specific_htab
= create_symbol_htab ();
945 /* Add a symbol to strip_specific_list. */
948 add_specific_symbol (const char *name
, htab_t htab
)
950 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
953 /* Add symbols listed in `filename' to strip_specific_list. */
955 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
956 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
959 add_specific_symbols (const char *filename
, htab_t htab
)
965 unsigned int line_count
;
967 size
= get_file_size (filename
);
974 buffer
= (char *) xmalloc (size
+ 2);
975 f
= fopen (filename
, FOPEN_RT
);
977 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
979 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
980 fatal (_("%s: fread failed"), filename
);
983 buffer
[size
] = '\n';
984 buffer
[size
+ 1] = '\0';
988 for (line
= buffer
; * line
!= '\0'; line
++)
993 int finished
= FALSE
;
995 for (eol
= line
;; eol
++)
1001 /* Cope with \n\r. */
1009 /* Cope with \r\n. */
1020 /* Line comment, Terminate the line here, in case a
1021 name is present and then allow the rest of the
1022 loop to find the real end of the line. */
1034 /* A name may now exist somewhere between 'line' and 'eol'.
1035 Strip off leading whitespace and trailing whitespace,
1036 then add it to the list. */
1037 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1039 for (name_end
= name
;
1040 (! IS_WHITESPACE (* name_end
))
1041 && (! IS_LINE_TERMINATOR (* name_end
));
1045 if (! IS_LINE_TERMINATOR (* name_end
))
1049 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1052 if (! IS_LINE_TERMINATOR (* extra
))
1053 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1054 filename
, line_count
);
1059 if (name_end
> name
)
1060 add_specific_symbol (name
, htab
);
1062 /* Advance line pointer to end of line. The 'eol ++' in the for
1063 loop above will then advance us to the start of the next line. */
1069 /* See whether a symbol should be stripped or kept
1070 based on strip_specific_list and keep_symbols. */
1073 is_specified_symbol_predicate (void **slot
, void *data
)
1075 struct is_specified_symbol_predicate_data
*d
=
1076 (struct is_specified_symbol_predicate_data
*) data
;
1077 const char *slot_name
= (char *) *slot
;
1079 if (*slot_name
!= '!')
1081 if (! fnmatch (slot_name
, d
->name
, 0))
1084 /* Continue traversal, there might be a non-match rule. */
1090 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1093 /* Stop traversal. */
1098 /* Continue traversal. */
1103 is_specified_symbol (const char *name
, htab_t htab
)
1107 struct is_specified_symbol_predicate_data data
;
1112 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1117 return htab_find (htab
, name
) != NULL
;
1120 /* Return a pointer to the symbol used as a signature for GROUP. */
1123 group_signature (asection
*group
)
1125 bfd
*abfd
= group
->owner
;
1126 Elf_Internal_Shdr
*ghdr
;
1128 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1132 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1135 ghdr
= &elf_section_data (group
)->this_hdr
;
1136 if (ghdr
->sh_link
< elf_numsections (abfd
))
1138 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1139 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1141 if (symhdr
->sh_type
== SHT_SYMTAB
1142 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1143 return isympp
[ghdr
->sh_info
- 1];
1148 /* Return TRUE if the section is a DWO section. */
1151 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1153 const char *name
= bfd_get_section_name (abfd
, sec
);
1154 int len
= strlen (name
);
1156 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1159 /* Return TRUE if section SEC is in the update list. */
1162 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1164 if (update_sections
!= NULL
)
1166 struct section_add
*pupdate
;
1168 for (pupdate
= update_sections
;
1170 pupdate
= pupdate
->next
)
1172 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1180 /* See if a non-group section is being removed. */
1183 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1185 if (sections_removed
|| sections_copied
)
1187 struct section_list
*p
;
1188 struct section_list
*q
;
1190 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1191 SECTION_CONTEXT_REMOVE
);
1192 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1193 SECTION_CONTEXT_COPY
);
1196 fatal (_("error: section %s matches both remove and copy options"),
1197 bfd_get_section_name (abfd
, sec
));
1198 if (p
&& is_update_section (abfd
, sec
))
1199 fatal (_("error: section %s matches both update and remove options"),
1200 bfd_get_section_name (abfd
, sec
));
1204 if (sections_copied
&& q
== NULL
)
1208 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1210 if (strip_symbols
== STRIP_DEBUG
1211 || strip_symbols
== STRIP_UNNEEDED
1212 || strip_symbols
== STRIP_ALL
1213 || discard_locals
== LOCALS_ALL
1214 || convert_debugging
)
1216 /* By default we don't want to strip .reloc section.
1217 This section has for pe-coff special meaning. See
1218 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1219 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1223 if (strip_symbols
== STRIP_DWO
)
1224 return is_dwo_section (abfd
, sec
);
1226 if (strip_symbols
== STRIP_NONDEBUG
)
1230 if (strip_symbols
== STRIP_NONDWO
)
1231 return !is_dwo_section (abfd
, sec
);
1236 /* See if a section is being removed. */
1239 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1241 if (is_strip_section_1 (abfd
, sec
))
1244 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1248 asection
*elt
, *first
;
1251 If we are going to strip the group signature symbol, then
1252 strip the group section too. */
1253 gsym
= group_signature (sec
);
1258 if ((strip_symbols
== STRIP_ALL
1259 && !is_specified_symbol (gname
, keep_specific_htab
))
1260 || is_specified_symbol (gname
, strip_specific_htab
))
1263 /* Remove the group section if all members are removed. */
1264 first
= elt
= elf_next_in_group (sec
);
1267 if (!is_strip_section_1 (abfd
, elt
))
1269 elt
= elf_next_in_group (elt
);
1281 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1283 /* Always keep ELF note sections. */
1284 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1285 return (elf_section_type (isection
) == SHT_NOTE
);
1287 /* Always keep the .buildid section for PE/COFF.
1289 Strictly, this should be written "always keep the section storing the debug
1290 directory", but that may be the .text section for objects produced by some
1291 tools, which it is not sensible to keep. */
1292 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1293 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1298 /* Return true if SYM is a hidden symbol. */
1301 is_hidden_symbol (asymbol
*sym
)
1303 elf_symbol_type
*elf_sym
;
1305 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1306 if (elf_sym
!= NULL
)
1307 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1317 need_sym_before (struct addsym_node
**node
, const char *sym
)
1320 struct addsym_node
*ptr
= add_sym_list
;
1322 /* 'othersym' symbols are at the front of the list. */
1323 for (count
= 0; count
< add_symbols
; count
++)
1327 else if (strcmp (ptr
->othersym
, sym
) == 0)
1329 free (ptr
->othersym
);
1330 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1340 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1342 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1344 bfd_asymbol_name (sym
) = ptr
->symdef
;
1345 sym
->value
= ptr
->symval
;
1346 sym
->flags
= ptr
->flags
;
1349 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1351 fatal (_("Section %s not found"), ptr
->section
);
1355 sym
->section
= bfd_abs_section_ptr
;
1359 /* Choose which symbol entries to copy; put the result in OSYMS.
1360 We don't copy in place, because that confuses the relocs.
1361 Return the number of symbols to print. */
1364 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1365 asymbol
**isyms
, long symcount
)
1367 asymbol
**from
= isyms
, **to
= osyms
;
1368 long src_count
= 0, dst_count
= 0;
1369 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1371 for (; src_count
< symcount
; src_count
++)
1373 asymbol
*sym
= from
[src_count
];
1374 flagword flags
= sym
->flags
;
1375 char *name
= (char *) bfd_asymbol_name (sym
);
1377 bfd_boolean used_in_reloc
= FALSE
;
1378 bfd_boolean undefined
;
1379 bfd_boolean rem_leading_char
;
1380 bfd_boolean add_leading_char
;
1382 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1386 struct addsym_node
*ptr
;
1388 if (need_sym_before (&ptr
, name
))
1389 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1392 if (redefine_sym_list
)
1394 char *old_name
, *new_name
;
1396 old_name
= (char *) bfd_asymbol_name (sym
);
1397 new_name
= (char *) lookup_sym_redefinition (old_name
);
1398 bfd_asymbol_name (sym
) = new_name
;
1402 /* Check if we will remove the current leading character. */
1404 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1405 && (change_leading_char
1406 || (remove_leading_char
1407 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1409 || bfd_is_com_section (bfd_get_section (sym
)))));
1411 /* Check if we will add a new leading character. */
1414 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1415 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1416 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1418 /* Short circuit for change_leading_char if we can do it in-place. */
1419 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1421 name
[0] = bfd_get_symbol_leading_char (obfd
);
1422 bfd_asymbol_name (sym
) = name
;
1423 rem_leading_char
= FALSE
;
1424 add_leading_char
= FALSE
;
1427 /* Remove leading char. */
1428 if (rem_leading_char
)
1429 bfd_asymbol_name (sym
) = ++name
;
1431 /* Add new leading char and/or prefix. */
1432 if (add_leading_char
|| prefix_symbols_string
)
1436 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1437 + strlen (name
) + 1);
1438 if (add_leading_char
)
1439 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1441 if (prefix_symbols_string
)
1443 strcpy (ptr
, prefix_symbols_string
);
1444 ptr
+= strlen (prefix_symbols_string
);
1448 bfd_asymbol_name (sym
) = n
;
1452 if (strip_symbols
== STRIP_ALL
)
1454 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1455 || ((flags
& BSF_SECTION_SYM
) != 0
1456 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1460 used_in_reloc
= TRUE
;
1462 else if (relocatable
/* Relocatable file. */
1463 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1464 || bfd_is_com_section (bfd_get_section (sym
))))
1466 else if (bfd_decode_symclass (sym
) == 'I')
1467 /* Global symbols in $idata sections need to be retained
1468 even if relocatable is FALSE. External users of the
1469 library containing the $idata section may reference these
1472 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1473 || (flags
& BSF_WEAK
) != 0
1475 || bfd_is_com_section (bfd_get_section (sym
)))
1476 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1477 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1478 keep
= (strip_symbols
!= STRIP_DEBUG
1479 && strip_symbols
!= STRIP_UNNEEDED
1480 && ! convert_debugging
);
1481 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1482 /* COMDAT sections store special information in local
1483 symbols, so we cannot risk stripping any of them. */
1485 else /* Local symbol. */
1486 keep
= (strip_symbols
!= STRIP_UNNEEDED
1487 && (discard_locals
!= LOCALS_ALL
1488 && (discard_locals
!= LOCALS_START_L
1489 || ! bfd_is_local_label (abfd
, sym
))));
1491 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1493 /* There are multiple ways to set 'keep' above, but if it
1494 was the relocatable symbol case, then that's an error. */
1497 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1505 && !(flags
& BSF_KEEP
)
1506 && is_specified_symbol (name
, strip_unneeded_htab
))
1510 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1511 || is_specified_symbol (name
, keep_specific_htab
)))
1514 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1519 if ((flags
& BSF_GLOBAL
) != 0
1520 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1522 sym
->flags
&= ~ BSF_GLOBAL
;
1523 sym
->flags
|= BSF_WEAK
;
1527 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1528 && (is_specified_symbol (name
, localize_specific_htab
)
1529 || (htab_elements (keepglobal_specific_htab
) != 0
1530 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1531 || (localize_hidden
&& is_hidden_symbol (sym
))))
1533 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1534 sym
->flags
|= BSF_LOCAL
;
1538 && (flags
& BSF_LOCAL
)
1539 && is_specified_symbol (name
, globalize_specific_htab
))
1541 sym
->flags
&= ~ BSF_LOCAL
;
1542 sym
->flags
|= BSF_GLOBAL
;
1545 to
[dst_count
++] = sym
;
1550 struct addsym_node
*ptr
= add_sym_list
;
1552 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1556 if (strcmp (ptr
->othersym
, ""))
1557 fatal (_("'before=%s' not found"), ptr
->othersym
);
1560 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1566 to
[dst_count
] = NULL
;
1571 /* Find the redefined name of symbol SOURCE. */
1574 lookup_sym_redefinition (const char *source
)
1576 struct redefine_node
*list
;
1578 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1579 if (strcmp (source
, list
->source
) == 0)
1580 return list
->target
;
1585 /* Add a node to a symbol redefine list. */
1588 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1590 struct redefine_node
**p
;
1591 struct redefine_node
*list
;
1592 struct redefine_node
*new_node
;
1594 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1596 if (strcmp (source
, list
->source
) == 0)
1597 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1600 if (strcmp (target
, list
->target
) == 0)
1601 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1605 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1607 new_node
->source
= strdup (source
);
1608 new_node
->target
= strdup (target
);
1609 new_node
->next
= NULL
;
1614 /* Handle the --redefine-syms option. Read lines containing "old new"
1615 from the file, and add them to the symbol redefine list. */
1618 add_redefine_syms_file (const char *filename
)
1627 file
= fopen (filename
, "r");
1629 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1630 filename
, strerror (errno
));
1633 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1641 /* Collect the input symbol name. */
1642 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1650 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1658 /* Eat white space between the symbol names. */
1659 while (IS_WHITESPACE (c
))
1661 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1666 /* Collect the output symbol name. */
1668 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1676 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1684 /* Eat white space at end of line. */
1685 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1690 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1691 || c
== '\n' || c
== EOF
)
1694 /* Append the redefinition to the list. */
1696 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1707 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1709 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1710 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1713 /* Eat the rest of the line and finish it. */
1714 while (c
!= '\n' && c
!= EOF
)
1720 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1725 /* Copy unkown object file IBFD onto OBFD.
1726 Returns TRUE upon success, FALSE otherwise. */
1729 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1737 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1739 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1746 non_fatal (_("stat returns negative size for `%s'"),
1747 bfd_get_archive_filename (ibfd
));
1751 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1753 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1758 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1759 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1761 cbuf
= (char *) xmalloc (BUFSIZE
);
1763 while (ncopied
< size
)
1765 tocopy
= size
- ncopied
;
1766 if (tocopy
> BUFSIZE
)
1769 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1770 != (bfd_size_type
) tocopy
)
1772 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1777 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1778 != (bfd_size_type
) tocopy
)
1780 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1788 /* We should at least to be able to read it back when copying an
1789 unknown object in an archive. */
1790 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1795 /* Copy object file IBFD onto OBFD.
1796 Returns TRUE upon success, FALSE otherwise. */
1799 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1803 asection
**osections
= NULL
;
1804 asection
*gnu_debuglink_section
= NULL
;
1805 bfd_size_type
*gaps
= NULL
;
1806 bfd_size_type max_gap
= 0;
1809 enum bfd_architecture iarch
;
1813 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1814 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1815 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1817 /* PR 17636: Call non-fatal so that we return to our parent who
1818 may need to tidy temporary files. */
1819 non_fatal (_("Unable to change endianness of input file(s)"));
1823 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1825 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1829 if (ibfd
->sections
== NULL
)
1831 non_fatal (_("error: the input file '%s' has no sections"),
1832 bfd_get_archive_filename (ibfd
));
1836 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
1838 if ((do_debug_sections
& compress
) != 0
1839 && do_debug_sections
!= compress
)
1841 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1842 bfd_get_archive_filename (ibfd
));
1846 if (do_elf_stt_common
)
1848 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
1849 bfd_get_archive_filename (ibfd
));
1855 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1856 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1857 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1866 start
= bfd_get_start_address (ibfd
);
1867 start
+= change_start
;
1870 /* Neither the start address nor the flags
1871 need to be set for a core file. */
1872 if (bfd_get_format (obfd
) != bfd_core
)
1876 flags
= bfd_get_file_flags (ibfd
);
1877 flags
|= bfd_flags_to_set
;
1878 flags
&= ~bfd_flags_to_clear
;
1879 flags
&= bfd_applicable_file_flags (obfd
);
1881 if (strip_symbols
== STRIP_ALL
)
1882 flags
&= ~HAS_RELOC
;
1884 if (!bfd_set_start_address (obfd
, start
)
1885 || !bfd_set_file_flags (obfd
, flags
))
1887 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1892 /* Copy architecture of input file to output file. */
1893 iarch
= bfd_get_arch (ibfd
);
1894 imach
= bfd_get_mach (ibfd
);
1897 if (bfd_get_arch_info (ibfd
) == NULL
1898 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1900 iarch
= input_arch
->arch
;
1901 imach
= input_arch
->mach
;
1904 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1905 bfd_get_archive_filename (ibfd
));
1907 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1908 && (ibfd
->target_defaulted
1909 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1911 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1912 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1913 bfd_get_archive_filename (ibfd
));
1915 non_fatal (_("Output file cannot represent architecture `%s'"),
1916 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1917 bfd_get_mach (ibfd
)));
1921 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1923 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1927 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1928 && bfd_pei_p (obfd
))
1930 /* Set up PE parameters. */
1931 pe_data_type
*pe
= pe_data (obfd
);
1933 /* Copy PE parameters before changing them. */
1934 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1935 && bfd_pei_p (ibfd
))
1936 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1938 if (pe_file_alignment
!= (bfd_vma
) -1)
1939 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1941 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1943 if (pe_heap_commit
!= (bfd_vma
) -1)
1944 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1946 if (pe_heap_reserve
!= (bfd_vma
) -1)
1947 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1949 if (pe_image_base
!= (bfd_vma
) -1)
1950 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1952 if (pe_section_alignment
!= (bfd_vma
) -1)
1953 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1955 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1957 if (pe_stack_commit
!= (bfd_vma
) -1)
1958 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1960 if (pe_stack_reserve
!= (bfd_vma
) -1)
1961 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1963 if (pe_subsystem
!= -1)
1964 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1966 if (pe_major_subsystem_version
!= -1)
1967 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1969 if (pe_minor_subsystem_version
!= -1)
1970 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1972 if (pe_file_alignment
> pe_section_alignment
)
1974 char file_alignment
[20], section_alignment
[20];
1976 sprintf_vma (file_alignment
, pe_file_alignment
);
1977 sprintf_vma (section_alignment
, pe_section_alignment
);
1978 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1980 file_alignment
, section_alignment
);
1987 if (osympp
!= isympp
)
1993 symsize
= bfd_get_symtab_upper_bound (ibfd
);
1996 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2000 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2001 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2004 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2007 /* PR 17512: file: d6323821
2008 If the symbol table could not be loaded do not pretend that we have
2009 any symbols. This trips us up later on when we load the relocs. */
2013 osympp
= isympp
= NULL
;
2016 /* BFD mandates that all output sections be created and sizes set before
2017 any output is done. Thus, we traverse all sections multiple times. */
2018 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2020 if (!extract_symbol
)
2021 setup_bfd_headers (ibfd
, obfd
);
2023 if (add_sections
!= NULL
)
2025 struct section_add
*padd
;
2026 struct section_list
*pset
;
2028 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2032 pset
= find_section_list (padd
->name
, FALSE
,
2033 SECTION_CONTEXT_SET_FLAGS
);
2035 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2037 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2039 /* bfd_make_section_with_flags() does not return very helpful
2040 error codes, so check for the most likely user error first. */
2041 if (bfd_get_section_by_name (obfd
, padd
->name
))
2043 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2044 _("can't add section '%s'"), padd
->name
);
2049 /* We use LINKER_CREATED here so that the backend hooks
2050 will create any special section type information,
2051 instead of presuming we know what we're doing merely
2052 because we set the flags. */
2053 padd
->section
= bfd_make_section_with_flags
2054 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2055 if (padd
->section
== NULL
)
2057 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2058 _("can't create section `%s'"),
2064 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2066 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2070 pset
= find_section_list (padd
->name
, FALSE
,
2071 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2073 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2075 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2079 pset
= find_section_list (padd
->name
, FALSE
,
2080 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2083 padd
->section
->lma
= pset
->lma_val
;
2085 if (! bfd_set_section_alignment
2086 (obfd
, padd
->section
,
2087 bfd_section_alignment (obfd
, padd
->section
)))
2089 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2096 if (update_sections
!= NULL
)
2098 struct section_add
*pupdate
;
2100 for (pupdate
= update_sections
;
2102 pupdate
= pupdate
->next
)
2106 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2107 if (pupdate
->section
== NULL
)
2109 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2113 osec
= pupdate
->section
->output_section
;
2114 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2116 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2122 if (dump_sections
!= NULL
)
2124 struct section_add
* pdump
;
2126 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2130 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2133 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2134 _("can't dump section '%s' - it does not exist"),
2139 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
2141 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2142 _("can't dump section - it has no contents"));
2146 bfd_size_type size
= bfd_get_section_size (sec
);
2149 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2150 _("can't dump section - it is empty"));
2155 f
= fopen (pdump
->filename
, FOPEN_WB
);
2158 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2159 _("could not open section dump file"));
2163 bfd_byte
* contents
= xmalloc (size
);
2164 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
2166 if (fwrite (contents
, 1, size
, f
) != size
)
2168 non_fatal (_("error writing section contents to %s (error: %s)"),
2175 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2176 _("could not retrieve section contents"));
2183 if (gnu_debuglink_filename
!= NULL
)
2185 /* PR 15125: Give a helpful warning message if
2186 the debuglink section already exists, and
2187 allow the rest of the copy to complete. */
2188 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2190 non_fatal (_("%s: debuglink section already exists"),
2191 bfd_get_filename (obfd
));
2192 gnu_debuglink_filename
= NULL
;
2196 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2197 (obfd
, gnu_debuglink_filename
);
2199 if (gnu_debuglink_section
== NULL
)
2201 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2202 _("cannot create debug link section `%s'"),
2203 gnu_debuglink_filename
);
2207 /* Special processing for PE format files. We
2208 have no way to distinguish PE from COFF here. */
2209 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2211 bfd_vma debuglink_vma
;
2212 asection
* highest_section
;
2215 /* The PE spec requires that all sections be adjacent and sorted
2216 in ascending order of VMA. It also specifies that debug
2217 sections should be last. This is despite the fact that debug
2218 sections are not loaded into memory and so in theory have no
2221 This means that the debuglink section must be given a non-zero
2222 VMA which makes it contiguous with other debug sections. So
2223 walk the current section list, find the section with the
2224 highest VMA and start the debuglink section after that one. */
2225 for (sec
= obfd
->sections
, highest_section
= NULL
;
2229 && (highest_section
== NULL
2230 || sec
->vma
> highest_section
->vma
))
2231 highest_section
= sec
;
2233 if (highest_section
)
2234 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2235 + highest_section
->size
,
2236 /* FIXME: We ought to be using
2237 COFF_PAGE_SIZE here or maybe
2238 bfd_get_section_alignment() (if it
2239 was set) but since this is for PE
2240 and we know the required alignment
2241 it is easier just to hard code it. */
2244 /* Umm, not sure what to do in this case. */
2245 debuglink_vma
= 0x1000;
2247 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2252 c
= bfd_count_sections (obfd
);
2254 && (gap_fill_set
|| pad_to_set
))
2258 /* We must fill in gaps between the sections and/or we must pad
2259 the last section to a specified address. We do this by
2260 grabbing a list of the sections, sorting them by VMA, and
2261 increasing the section sizes as required to fill the gaps.
2262 We write out the gap contents below. */
2264 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2266 bfd_map_over_sections (obfd
, get_sections
, &set
);
2268 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2270 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2271 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2275 for (i
= 0; i
< c
- 1; i
++)
2279 bfd_vma gap_start
, gap_stop
;
2281 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2282 if ((flags
& SEC_HAS_CONTENTS
) == 0
2283 || (flags
& SEC_LOAD
) == 0)
2286 size
= bfd_section_size (obfd
, osections
[i
]);
2287 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2288 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2289 if (gap_start
< gap_stop
)
2291 if (! bfd_set_section_size (obfd
, osections
[i
],
2292 size
+ (gap_stop
- gap_start
)))
2294 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2295 _("Can't fill gap after section"));
2299 gaps
[i
] = gap_stop
- gap_start
;
2300 if (max_gap
< gap_stop
- gap_start
)
2301 max_gap
= gap_stop
- gap_start
;
2311 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2312 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2313 if (lma
+ size
< pad_to
)
2315 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2318 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2319 _("can't add padding"));
2324 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2325 if (max_gap
< pad_to
- (lma
+ size
))
2326 max_gap
= pad_to
- (lma
+ size
);
2332 /* Symbol filtering must happen after the output sections
2333 have been created, but before their contents are set. */
2335 if (convert_debugging
)
2336 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2338 if (strip_symbols
== STRIP_DEBUG
2339 || strip_symbols
== STRIP_ALL
2340 || strip_symbols
== STRIP_UNNEEDED
2341 || strip_symbols
== STRIP_NONDEBUG
2342 || strip_symbols
== STRIP_DWO
2343 || strip_symbols
== STRIP_NONDWO
2344 || discard_locals
!= LOCALS_UNDEF
2346 || htab_elements (strip_specific_htab
) != 0
2347 || htab_elements (keep_specific_htab
) != 0
2348 || htab_elements (localize_specific_htab
) != 0
2349 || htab_elements (globalize_specific_htab
) != 0
2350 || htab_elements (keepglobal_specific_htab
) != 0
2351 || htab_elements (weaken_specific_htab
) != 0
2352 || prefix_symbols_string
2355 || convert_debugging
2356 || change_leading_char
2357 || remove_leading_char
2358 || redefine_sym_list
2362 /* Mark symbols used in output relocations so that they
2363 are kept, even if they are local labels or static symbols.
2365 Note we iterate over the input sections examining their
2366 relocations since the relocations for the output sections
2367 haven't been set yet. mark_symbols_used_in_relocations will
2368 ignore input sections which have no corresponding output
2370 if (strip_symbols
!= STRIP_ALL
)
2371 bfd_map_over_sections (ibfd
,
2372 mark_symbols_used_in_relocations
,
2374 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
2375 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2378 if (convert_debugging
&& dhandle
!= NULL
)
2380 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2387 bfd_set_symtab (obfd
, osympp
, symcount
);
2389 /* This has to happen before section positions are set. */
2390 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2392 /* This has to happen after the symbol table has been set. */
2393 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2395 if (add_sections
!= NULL
)
2397 struct section_add
*padd
;
2399 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2401 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2404 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2410 if (update_sections
!= NULL
)
2412 struct section_add
*pupdate
;
2414 for (pupdate
= update_sections
;
2416 pupdate
= pupdate
->next
)
2420 osec
= pupdate
->section
->output_section
;
2421 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2424 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2430 if (gnu_debuglink_filename
!= NULL
)
2432 if (! bfd_fill_in_gnu_debuglink_section
2433 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2435 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2436 _("cannot fill debug link section `%s'"),
2437 gnu_debuglink_filename
);
2442 if (gap_fill_set
|| pad_to_set
)
2446 /* Fill in the gaps. */
2449 buf
= (bfd_byte
*) xmalloc (max_gap
);
2450 memset (buf
, gap_fill
, max_gap
);
2452 c
= bfd_count_sections (obfd
);
2453 for (i
= 0; i
< c
; i
++)
2461 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2472 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2475 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2486 /* Allow the BFD backend to copy any private data it understands
2487 from the input BFD to the output BFD. This is done last to
2488 permit the routine to look at the filtered symbol table, which is
2489 important for the ECOFF code at least. */
2490 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2492 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2493 _("error copying private BFD data"));
2497 /* Switch to the alternate machine code. We have to do this at the
2498 very end, because we only initialize the header when we create
2499 the first section. */
2500 if (use_alt_mach_code
!= 0)
2502 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2504 non_fatal (_("this target does not support %lu alternative machine codes"),
2506 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2508 non_fatal (_("treating that number as an absolute e_machine value instead"));
2509 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2512 non_fatal (_("ignoring the alternative value"));
2519 /* Read each archive element in turn from IBFD, copy the
2520 contents to temp file, and keep the temp file handle.
2521 If 'force_output_target' is TRUE then make sure that
2522 all elements in the new archive are of the type
2526 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2527 bfd_boolean force_output_target
,
2528 const bfd_arch_info_type
*input_arch
)
2532 struct name_list
*next
;
2536 bfd
**ptr
= &obfd
->archive_head
;
2539 const char *filename
;
2541 /* Make a temp directory to hold the contents. */
2542 dir
= make_tempdir (bfd_get_filename (obfd
));
2544 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2547 if (strip_symbols
== STRIP_ALL
)
2548 obfd
->has_armap
= FALSE
;
2550 obfd
->has_armap
= ibfd
->has_armap
;
2551 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2554 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2558 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2560 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2563 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2564 goto cleanup_and_exit
;
2567 while (!status
&& this_element
!= NULL
)
2573 int stat_status
= 0;
2574 bfd_boolean del
= TRUE
;
2575 bfd_boolean ok_object
;
2577 /* PR binutils/17533: Do not allow directory traversal
2578 outside of the current directory tree by archive members. */
2579 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2581 non_fatal (_("illegal pathname found in archive member: %s"),
2582 bfd_get_filename (this_element
));
2584 goto cleanup_and_exit
;
2587 /* Create an output file for this member. */
2588 output_name
= concat (dir
, "/",
2589 bfd_get_filename (this_element
), (char *) 0);
2591 /* If the file already exists, make another temp dir. */
2592 if (stat (output_name
, &buf
) >= 0)
2594 output_name
= make_tempdir (output_name
);
2595 if (output_name
== NULL
)
2597 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2600 goto cleanup_and_exit
;
2603 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2604 l
->name
= output_name
;
2608 output_name
= concat (output_name
, "/",
2609 bfd_get_filename (this_element
), (char *) 0);
2614 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2616 if (stat_status
!= 0)
2617 non_fatal (_("internal stat error on %s"),
2618 bfd_get_filename (this_element
));
2621 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2622 l
->name
= output_name
;
2627 ok_object
= bfd_check_format (this_element
, bfd_object
);
2629 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2630 _("Unable to recognise the format of file"));
2632 /* PR binutils/3110: Cope with archives
2633 containing multiple target types. */
2634 if (force_output_target
|| !ok_object
)
2635 output_bfd
= bfd_openw (output_name
, output_target
);
2637 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2639 if (output_bfd
== NULL
)
2641 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2643 goto cleanup_and_exit
;
2648 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2650 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2651 /* Try again as an unknown object file. */
2653 else if (!bfd_close (output_bfd
))
2655 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2656 /* Error in new object file. Don't change archive. */
2663 del
= !copy_unknown_object (this_element
, output_bfd
);
2664 if (!bfd_close_all_done (output_bfd
))
2666 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2667 /* Error in new object file. Don't change archive. */
2674 unlink (output_name
);
2679 if (preserve_dates
&& stat_status
== 0)
2680 set_times (output_name
, &buf
);
2682 /* Open the newly output file and attach to our list. */
2683 output_bfd
= bfd_openr (output_name
, output_target
);
2685 l
->obfd
= output_bfd
;
2688 ptr
= &output_bfd
->archive_next
;
2690 last_element
= this_element
;
2692 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2694 bfd_close (last_element
);
2699 filename
= bfd_get_filename (obfd
);
2700 if (!bfd_close (obfd
))
2703 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2706 filename
= bfd_get_filename (ibfd
);
2707 if (!bfd_close (ibfd
))
2710 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2714 /* Delete all the files that we opened. */
2715 for (l
= list
; l
!= NULL
; l
= l
->next
)
2717 if (l
->obfd
== NULL
)
2721 bfd_close (l
->obfd
);
2730 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2732 /* This is only relevant to Coff targets. */
2733 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2736 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2737 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2738 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2742 /* The top-level control. */
2745 copy_file (const char *input_filename
, const char *output_filename
,
2746 const char *input_target
, const char *output_target
,
2747 const bfd_arch_info_type
*input_arch
)
2750 char **obj_matching
;
2751 char **core_matching
;
2752 off_t size
= get_file_size (input_filename
);
2757 non_fatal (_("error: the input file '%s' is empty"),
2763 /* To allow us to do "strip *" without dying on the first
2764 non-object file, failures are nonfatal. */
2765 ibfd
= bfd_openr (input_filename
, input_target
);
2768 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2773 switch (do_debug_sections
)
2777 case compress_gnu_zlib
:
2778 case compress_gabi_zlib
:
2779 ibfd
->flags
|= BFD_COMPRESS
;
2780 /* Don't check if input is ELF here since this information is
2781 only available after bfd_check_format_matches is called. */
2782 if (do_debug_sections
!= compress_gnu_zlib
)
2783 ibfd
->flags
|= BFD_COMPRESS_GABI
;
2786 ibfd
->flags
|= BFD_DECOMPRESS
;
2792 switch (do_elf_stt_common
)
2794 case elf_stt_common
:
2795 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
2798 case no_elf_stt_common
:
2799 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
2805 if (bfd_check_format (ibfd
, bfd_archive
))
2807 bfd_boolean force_output_target
;
2810 /* bfd_get_target does not return the correct value until
2811 bfd_check_format succeeds. */
2812 if (output_target
== NULL
)
2814 output_target
= bfd_get_target (ibfd
);
2815 force_output_target
= FALSE
;
2818 force_output_target
= TRUE
;
2820 obfd
= bfd_openw (output_filename
, output_target
);
2823 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2827 /* This is a no-op on non-Coff targets. */
2828 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2830 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2832 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2837 /* bfd_get_target does not return the correct value until
2838 bfd_check_format succeeds. */
2839 if (output_target
== NULL
)
2840 output_target
= bfd_get_target (ibfd
);
2842 obfd
= bfd_openw (output_filename
, output_target
);
2845 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2849 /* This is a no-op on non-Coff targets. */
2850 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2852 if (! copy_object (ibfd
, obfd
, input_arch
))
2855 /* PR 17512: file: 0f15796a.
2856 If the file could not be copied it may not be in a writeable
2857 state. So use bfd_close_all_done to avoid the possibility of
2858 writing uninitialised data into the file. */
2859 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2862 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2866 if (!bfd_close (ibfd
))
2869 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2875 bfd_error_type obj_error
= bfd_get_error ();
2876 bfd_error_type core_error
;
2878 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2880 /* This probably can't happen.. */
2881 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2882 free (obj_matching
);
2886 core_error
= bfd_get_error ();
2887 /* Report the object error in preference to the core error. */
2888 if (obj_error
!= core_error
)
2889 bfd_set_error (obj_error
);
2891 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2893 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2895 list_matching_formats (obj_matching
);
2896 free (obj_matching
);
2898 if (core_error
== bfd_error_file_ambiguously_recognized
)
2900 list_matching_formats (core_matching
);
2901 free (core_matching
);
2908 /* Add a name to the section renaming list. */
2911 add_section_rename (const char * old_name
, const char * new_name
,
2914 section_rename
* srename
;
2916 /* Check for conflicts first. */
2917 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2918 if (strcmp (srename
->old_name
, old_name
) == 0)
2920 /* Silently ignore duplicate definitions. */
2921 if (strcmp (srename
->new_name
, new_name
) == 0
2922 && srename
->flags
== flags
)
2925 fatal (_("Multiple renames of section %s"), old_name
);
2928 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2930 srename
->old_name
= old_name
;
2931 srename
->new_name
= new_name
;
2932 srename
->flags
= flags
;
2933 srename
->next
= section_rename_list
;
2935 section_rename_list
= srename
;
2938 /* Check the section rename list for a new name of the input section
2939 ISECTION. Return the new name if one is found.
2940 Also set RETURNED_FLAGS to the flags to be used for this section. */
2943 find_section_rename (bfd
* ibfd ATTRIBUTE_UNUSED
, sec_ptr isection
,
2944 flagword
* returned_flags
)
2946 const char * old_name
= bfd_section_name (ibfd
, isection
);
2947 section_rename
* srename
;
2949 /* Default to using the flags of the input section. */
2950 * returned_flags
= bfd_get_section_flags (ibfd
, isection
);
2952 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2953 if (strcmp (srename
->old_name
, old_name
) == 0)
2955 if (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
= find_section_rename (ibfd
, isection
, & flags
);
3008 /* Prefix sections. */
3009 if ((prefix_alloc_sections_string
)
3010 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3011 prefix
= prefix_alloc_sections_string
;
3012 else if (prefix_sections_string
)
3013 prefix
= prefix_sections_string
;
3019 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3025 make_nobits
= FALSE
;
3027 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3028 SECTION_CONTEXT_SET_FLAGS
);
3030 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3031 else if (strip_symbols
== STRIP_NONDEBUG
3032 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3033 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3035 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3036 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3040 /* Twiddle the input section flags so that it seems to
3041 elf.c:copy_private_bfd_data that section flags have not
3042 changed between input and output sections. This hack
3043 prevents wholesale rewriting of the program headers. */
3044 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3048 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3050 if (osection
== NULL
)
3052 err
= _("failed to create output section");
3057 elf_section_type (osection
) = SHT_NOBITS
;
3059 size
= bfd_section_size (ibfd
, isection
);
3060 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3062 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3063 else if (extract_symbol
)
3065 if (! bfd_set_section_size (obfd
, osection
, size
))
3067 err
= _("failed to set size");
3071 vma
= bfd_section_vma (ibfd
, isection
);
3072 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3073 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3076 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3082 vma
+= change_section_address
;
3084 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3086 err
= _("failed to set vma");
3090 lma
= isection
->lma
;
3091 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3092 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3095 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3101 lma
+= change_section_address
;
3103 osection
->lma
= lma
;
3105 /* FIXME: This is probably not enough. If we change the LMA we
3106 may have to recompute the header for the file as well. */
3107 if (!bfd_set_section_alignment (obfd
,
3109 bfd_section_alignment (ibfd
, isection
)))
3111 err
= _("failed to set alignment");
3115 /* Copy merge entity size. */
3116 osection
->entsize
= isection
->entsize
;
3118 /* Copy compress status. */
3119 osection
->compress_status
= isection
->compress_status
;
3121 /* This used to be mangle_section; we do here to avoid using
3122 bfd_get_section_by_name since some formats allow multiple
3123 sections with the same name. */
3124 isection
->output_section
= osection
;
3125 isection
->output_offset
= 0;
3127 if ((isection
->flags
& SEC_GROUP
) != 0)
3129 asymbol
*gsym
= group_signature (isection
);
3133 gsym
->flags
|= BSF_KEEP
;
3134 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3135 elf_group_id (isection
) = gsym
;
3139 /* Allow the BFD backend to copy any private data it understands
3140 from the input section to the output section. */
3141 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3143 err
= _("failed to copy private data");
3147 /* All went well. */
3152 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3155 /* Return TRUE if input section ISECTION should be skipped. */
3158 skip_section (bfd
*ibfd
, sec_ptr isection
)
3164 /* If we have already failed earlier on,
3165 do not keep on generating complaints now. */
3172 if (is_strip_section (ibfd
, isection
))
3175 if (is_update_section (ibfd
, isection
))
3178 flags
= bfd_get_section_flags (ibfd
, isection
);
3179 if ((flags
& SEC_GROUP
) != 0)
3182 osection
= isection
->output_section
;
3183 size
= bfd_get_section_size (isection
);
3185 if (size
== 0 || osection
== 0)
3191 /* Copy relocations in input section ISECTION of IBFD to an output
3192 section with the same name in OBFDARG. If stripping then don't
3193 copy any relocation info. */
3196 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3198 bfd
*obfd
= (bfd
*) obfdarg
;
3204 if (skip_section (ibfd
, isection
))
3207 osection
= isection
->output_section
;
3209 /* Core files and DWO files do not need to be relocated. */
3210 if (bfd_get_format (obfd
) == bfd_core
|| strip_symbols
== STRIP_NONDWO
)
3214 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3218 /* Do not complain if the target does not support relocations. */
3219 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3224 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3232 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3233 osection
->flags
&= ~SEC_RELOC
;
3237 relpp
= (arelent
**) xmalloc (relsize
);
3238 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3242 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3243 _("relocation count is negative"));
3247 if (strip_symbols
== STRIP_ALL
)
3249 /* Remove relocations which are not in
3250 keep_strip_specific_list. */
3251 arelent
**temp_relpp
;
3252 long temp_relcount
= 0;
3255 temp_relpp
= (arelent
**) xmalloc (relsize
);
3256 for (i
= 0; i
< relcount
; i
++)
3258 /* PR 17512: file: 9e907e0c. */
3259 if (relpp
[i
]->sym_ptr_ptr
3261 && * relpp
[i
]->sym_ptr_ptr
)
3262 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3263 keep_specific_htab
))
3264 temp_relpp
[temp_relcount
++] = relpp
[i
];
3266 relcount
= temp_relcount
;
3271 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3274 osection
->flags
&= ~SEC_RELOC
;
3280 /* Copy the data of input section ISECTION of IBFD
3281 to an output section with the same name in OBFD. */
3284 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3286 bfd
*obfd
= (bfd
*) obfdarg
;
3287 struct section_list
*p
;
3291 if (skip_section (ibfd
, isection
))
3294 osection
= isection
->output_section
;
3295 /* The output SHF_COMPRESSED section size is different from input if
3296 ELF classes of input and output aren't the same. We can't use
3297 the output section size since --interleave will shrink the output
3298 section. Size will be updated if the section is converted. */
3299 size
= bfd_get_section_size (isection
);
3301 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3302 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3304 bfd_byte
*memhunk
= NULL
;
3306 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3307 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3311 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3317 /* We don't handle leftover bytes (too many possible behaviors,
3318 and we don't know what the user wants). The section length
3319 must be a multiple of the number of bytes to swap. */
3320 if ((size
% reverse_bytes
) == 0)
3325 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3326 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3328 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3331 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3332 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3336 /* User must pad the section up in order to do this. */
3337 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3338 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3343 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3344 char *from
= (char *) memhunk
+ copy_byte
;
3345 char *to
= (char *) memhunk
;
3346 char *end
= (char *) memhunk
+ size
;
3349 for (; from
< end
; from
+= interleave
)
3350 for (i
= 0; i
< copy_width
; i
++)
3352 if (&from
[i
] >= end
)
3357 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3358 osection
->lma
/= interleave
;
3361 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3364 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3369 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3370 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3371 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3373 void *memhunk
= xmalloc (size
);
3375 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3376 flag--they can just remove the section entirely and add it
3377 back again. However, we do permit them to turn on the
3378 SEC_HAS_CONTENTS flag, and take it to mean that the section
3379 contents should be zeroed out. */
3381 memset (memhunk
, 0, size
);
3382 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3385 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3392 /* Get all the sections. This is used when --gap-fill or --pad-to is
3396 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3398 asection
***secppp
= (asection
***) secppparg
;
3400 **secppp
= osection
;
3404 /* Sort sections by VMA. This is called via qsort, and is used when
3405 --gap-fill or --pad-to is used. We force non loadable or empty
3406 sections to the front, where they are easier to ignore. */
3409 compare_section_lma (const void *arg1
, const void *arg2
)
3411 const asection
*const *sec1
= (const asection
* const *) arg1
;
3412 const asection
*const *sec2
= (const asection
* const *) arg2
;
3413 flagword flags1
, flags2
;
3415 /* Sort non loadable sections to the front. */
3416 flags1
= (*sec1
)->flags
;
3417 flags2
= (*sec2
)->flags
;
3418 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3419 || (flags1
& SEC_LOAD
) == 0)
3421 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3422 && (flags2
& SEC_LOAD
) != 0)
3427 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3428 || (flags2
& SEC_LOAD
) == 0)
3432 /* Sort sections by LMA. */
3433 if ((*sec1
)->lma
> (*sec2
)->lma
)
3435 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3438 /* Sort sections with the same LMA by size. */
3439 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3441 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3447 /* Mark all the symbols which will be used in output relocations with
3448 the BSF_KEEP flag so that those symbols will not be stripped.
3450 Ignore relocations which will not appear in the output file. */
3453 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3455 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3460 /* Ignore an input section with no corresponding output section. */
3461 if (isection
->output_section
== NULL
)
3464 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3467 /* Do not complain if the target does not support relocations. */
3468 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3470 bfd_fatal (bfd_get_filename (ibfd
));
3476 relpp
= (arelent
**) xmalloc (relsize
);
3477 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3479 bfd_fatal (bfd_get_filename (ibfd
));
3481 /* Examine each symbol used in a relocation. If it's not one of the
3482 special bfd section symbols, then mark it with BSF_KEEP. */
3483 for (i
= 0; i
< relcount
; i
++)
3485 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3486 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3487 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3488 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3495 /* Write out debugging information. */
3498 write_debugging_info (bfd
*obfd
, void *dhandle
,
3499 long *symcountp ATTRIBUTE_UNUSED
,
3500 asymbol
***symppp ATTRIBUTE_UNUSED
)
3502 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3503 return write_ieee_debugging_info (obfd
, dhandle
);
3505 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3506 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3508 bfd_byte
*syms
, *strings
;
3509 bfd_size_type symsize
, stringsize
;
3510 asection
*stabsec
, *stabstrsec
;
3513 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3518 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3519 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3520 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3522 || stabstrsec
== NULL
3523 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3524 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3525 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3526 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3528 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3529 _("can't create debugging section"));
3533 /* We can get away with setting the section contents now because
3534 the next thing the caller is going to do is copy over the
3535 real sections. We may someday have to split the contents
3536 setting out of this function. */
3537 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3538 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3541 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3542 _("can't set debugging section contents"));
3549 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3550 _("don't know how to write debugging information for %s"),
3551 bfd_get_target (obfd
));
3555 /* If neither -D nor -U was specified explicitly,
3556 then use the configured default. */
3558 default_deterministic (void)
3560 if (deterministic
< 0)
3561 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3565 strip_main (int argc
, char *argv
[])
3567 char *input_target
= NULL
;
3568 char *output_target
= NULL
;
3569 bfd_boolean show_version
= FALSE
;
3570 bfd_boolean formats_info
= FALSE
;
3573 char *output_file
= NULL
;
3575 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3576 strip_options
, (int *) 0)) != EOF
)
3581 input_target
= optarg
;
3584 output_target
= optarg
;
3587 input_target
= output_target
= optarg
;
3590 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3591 sections_removed
= TRUE
;
3594 strip_symbols
= STRIP_ALL
;
3598 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3599 strip_symbols
= STRIP_DEBUG
;
3601 case OPTION_STRIP_DWO
:
3602 strip_symbols
= STRIP_DWO
;
3604 case OPTION_STRIP_UNNEEDED
:
3605 strip_symbols
= STRIP_UNNEEDED
;
3608 add_specific_symbol (optarg
, keep_specific_htab
);
3611 add_specific_symbol (optarg
, strip_specific_htab
);
3614 output_file
= optarg
;
3617 preserve_dates
= TRUE
;
3620 deterministic
= TRUE
;
3623 deterministic
= FALSE
;
3626 discard_locals
= LOCALS_ALL
;
3629 discard_locals
= LOCALS_START_L
;
3635 show_version
= TRUE
;
3637 case OPTION_FORMATS_INFO
:
3638 formats_info
= TRUE
;
3640 case OPTION_ONLY_KEEP_DEBUG
:
3641 strip_symbols
= STRIP_NONDEBUG
;
3643 case OPTION_KEEP_FILE_SYMBOLS
:
3644 keep_file_symbols
= 1;
3647 /* We've been given a long option. */
3654 strip_usage (stdout
, 0);
3656 strip_usage (stderr
, 1);
3667 print_version ("strip");
3669 default_deterministic ();
3671 /* Default is to strip all symbols. */
3672 if (strip_symbols
== STRIP_UNDEF
3673 && discard_locals
== LOCALS_UNDEF
3674 && htab_elements (strip_specific_htab
) == 0)
3675 strip_symbols
= STRIP_ALL
;
3677 if (output_target
== NULL
)
3678 output_target
= input_target
;
3682 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3683 strip_usage (stderr
, 1);
3685 for (; i
< argc
; i
++)
3687 int hold_status
= status
;
3688 struct stat statbuf
;
3691 if (get_file_size (argv
[i
]) < 1)
3698 /* No need to check the return value of stat().
3699 It has already been checked in get_file_size(). */
3700 stat (argv
[i
], &statbuf
);
3702 if (output_file
== NULL
3703 || filename_cmp (argv
[i
], output_file
) == 0)
3704 tmpname
= make_tempname (argv
[i
]);
3706 tmpname
= output_file
;
3708 if (tmpname
== NULL
)
3710 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3711 _("could not create temporary file to hold stripped copy"));
3717 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3721 set_times (tmpname
, &statbuf
);
3722 if (output_file
!= tmpname
)
3723 status
= (smart_rename (tmpname
,
3724 output_file
? output_file
: argv
[i
],
3725 preserve_dates
) != 0);
3727 status
= hold_status
;
3730 unlink_if_ordinary (tmpname
);
3731 if (output_file
!= tmpname
)
3738 /* Set up PE subsystem. */
3741 set_pe_subsystem (const char *s
)
3743 const char *version
, *subsystem
;
3753 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3754 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3755 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3756 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3757 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3758 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3759 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3760 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3761 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3762 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3768 /* Check for the presence of a version number. */
3769 version
= strchr (s
, ':');
3770 if (version
== NULL
)
3774 int len
= version
- s
;
3778 version
= copy
+ 1 + len
;
3779 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3781 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3783 non_fatal (_("%s: bad version in PE subsystem"), s
);
3786 /* Check for numeric subsystem. */
3787 value
= (short) strtol (subsystem
, ©
, 0);
3790 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3791 if (v
[i
].value
== value
)
3793 pe_subsystem
= value
;
3794 set_def
= v
[i
].set_def
;
3800 /* Search for subsystem by name. */
3801 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3802 if (strcmp (subsystem
, v
[i
].name
) == 0)
3804 pe_subsystem
= v
[i
].value
;
3805 set_def
= v
[i
].set_def
;
3813 fatal (_("unknown PE subsystem: %s"), s
);
3818 if (pe_file_alignment
== (bfd_vma
) -1)
3819 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3820 if (pe_section_alignment
== (bfd_vma
) -1)
3821 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3825 free ((char *) subsystem
);
3828 /* Convert EFI target to PEI target. */
3831 convert_efi_target (char *efi
)
3837 if (strcmp (efi
+ 4, "ia32") == 0)
3839 /* Change ia32 to i386. */
3844 else if (strcmp (efi
+ 4, "x86_64") == 0)
3846 /* Change x86_64 to x86-64. */
3851 /* Allocate and return a pointer to a struct section_add, initializing the
3852 structure using ARG, a string in the format "sectionname=filename".
3853 The returned structure will have its next pointer set to NEXT. The
3854 OPTION field is the name of the command line option currently being
3855 parsed, and is only used if an error needs to be reported. */
3857 static struct section_add
*
3858 init_section_add (const char *arg
,
3859 struct section_add
*next
,
3862 struct section_add
*pa
;
3865 s
= strchr (arg
, '=');
3867 fatal (_("bad format for %s"), option
);
3869 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3870 pa
->name
= xstrndup (arg
, s
- arg
);
3871 pa
->filename
= s
+ 1;
3873 pa
->contents
= NULL
;
3879 /* Load the file specified in PA, allocating memory to hold the file
3880 contents, and store a pointer to the allocated memory in the contents
3881 field of PA. The size field of PA is also updated. All errors call
3885 section_add_load_file (struct section_add
*pa
)
3890 /* We don't use get_file_size so that we can do
3891 --add-section .note.GNU_stack=/dev/null
3892 get_file_size doesn't work on /dev/null. */
3894 f
= fopen (pa
->filename
, FOPEN_RB
);
3896 fatal (_("cannot open: %s: %s"),
3897 pa
->filename
, strerror (errno
));
3901 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3909 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3912 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3914 fatal (_("%s: fread failed"), pa
->filename
);
3925 copy_main (int argc
, char *argv
[])
3927 char *input_filename
= NULL
;
3928 char *output_filename
= NULL
;
3930 char *input_target
= NULL
;
3931 char *output_target
= NULL
;
3932 bfd_boolean show_version
= FALSE
;
3933 bfd_boolean change_warn
= TRUE
;
3934 bfd_boolean formats_info
= FALSE
;
3936 struct stat statbuf
;
3937 const bfd_arch_info_type
*input_arch
= NULL
;
3939 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3940 copy_options
, (int *) 0)) != EOF
)
3945 copy_byte
= atoi (optarg
);
3947 fatal (_("byte number must be non-negative"));
3951 input_arch
= bfd_scan_arch (optarg
);
3952 if (input_arch
== NULL
)
3953 fatal (_("architecture %s unknown"), optarg
);
3959 interleave
= atoi (optarg
);
3961 fatal (_("interleave must be positive"));
3967 case OPTION_INTERLEAVE_WIDTH
:
3968 copy_width
= atoi (optarg
);
3970 fatal(_("interleave width must be positive"));
3974 case 's': /* "source" - 'I' is preferred */
3975 input_target
= optarg
;
3979 case 'd': /* "destination" - 'O' is preferred */
3980 output_target
= optarg
;
3984 input_target
= output_target
= optarg
;
3988 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
3989 sections_copied
= TRUE
;
3993 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3994 sections_removed
= TRUE
;
3998 strip_symbols
= STRIP_ALL
;
4002 strip_symbols
= STRIP_DEBUG
;
4005 case OPTION_STRIP_DWO
:
4006 strip_symbols
= STRIP_DWO
;
4009 case OPTION_STRIP_UNNEEDED
:
4010 strip_symbols
= STRIP_UNNEEDED
;
4013 case OPTION_ONLY_KEEP_DEBUG
:
4014 strip_symbols
= STRIP_NONDEBUG
;
4017 case OPTION_KEEP_FILE_SYMBOLS
:
4018 keep_file_symbols
= 1;
4021 case OPTION_ADD_GNU_DEBUGLINK
:
4022 long_section_names
= ENABLE
;
4023 gnu_debuglink_filename
= optarg
;
4027 add_specific_symbol (optarg
, keep_specific_htab
);
4031 add_specific_symbol (optarg
, strip_specific_htab
);
4034 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4035 add_specific_symbol (optarg
, strip_unneeded_htab
);
4039 add_specific_symbol (optarg
, localize_specific_htab
);
4042 case OPTION_GLOBALIZE_SYMBOL
:
4043 add_specific_symbol (optarg
, globalize_specific_htab
);
4047 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4051 add_specific_symbol (optarg
, weaken_specific_htab
);
4055 preserve_dates
= TRUE
;
4059 deterministic
= TRUE
;
4063 deterministic
= FALSE
;
4071 discard_locals
= LOCALS_ALL
;
4075 discard_locals
= LOCALS_START_L
;
4083 show_version
= TRUE
;
4086 case OPTION_FORMATS_INFO
:
4087 formats_info
= TRUE
;
4094 case OPTION_ADD_SECTION
:
4095 add_sections
= init_section_add (optarg
, add_sections
,
4097 section_add_load_file (add_sections
);
4100 case OPTION_UPDATE_SECTION
:
4101 update_sections
= init_section_add (optarg
, update_sections
,
4102 "--update-section");
4103 section_add_load_file (update_sections
);
4106 case OPTION_DUMP_SECTION
:
4107 dump_sections
= init_section_add (optarg
, dump_sections
,
4111 case OPTION_ADD_SYMBOL
:
4114 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4116 newsym
->next
= NULL
;
4117 s
= strchr (optarg
, '=');
4119 fatal (_("bad format for %s"), "--add-symbol");
4120 t
= strchr (s
+ 1, ':');
4122 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4125 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4126 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4130 newsym
->section
= NULL
;
4131 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4135 t
= strchr (t
+ 1, ',');
4136 newsym
->othersym
= NULL
;
4138 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4140 newsym
->flags
= BSF_GLOBAL
;
4142 /* Keep 'othersym' symbols at the front of the list. */
4143 if (newsym
->othersym
)
4145 newsym
->next
= add_sym_list
;
4147 add_sym_tail
= &newsym
->next
;
4148 add_sym_list
= newsym
;
4152 *add_sym_tail
= newsym
;
4153 add_sym_tail
= &newsym
->next
;
4159 case OPTION_CHANGE_START
:
4160 change_start
= parse_vma (optarg
, "--change-start");
4163 case OPTION_CHANGE_SECTION_ADDRESS
:
4164 case OPTION_CHANGE_SECTION_LMA
:
4165 case OPTION_CHANGE_SECTION_VMA
:
4167 struct section_list
* p
;
4168 unsigned int context
= 0;
4172 char *option
= NULL
;
4177 case OPTION_CHANGE_SECTION_ADDRESS
:
4178 option
= "--change-section-address";
4179 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4181 case OPTION_CHANGE_SECTION_LMA
:
4182 option
= "--change-section-lma";
4183 context
= SECTION_CONTEXT_ALTER_LMA
;
4185 case OPTION_CHANGE_SECTION_VMA
:
4186 option
= "--change-section-vma";
4187 context
= SECTION_CONTEXT_ALTER_VMA
;
4191 s
= strchr (optarg
, '=');
4194 s
= strchr (optarg
, '+');
4197 s
= strchr (optarg
, '-');
4199 fatal (_("bad format for %s"), option
);
4204 /* Correct the context. */
4207 case OPTION_CHANGE_SECTION_ADDRESS
:
4208 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4210 case OPTION_CHANGE_SECTION_LMA
:
4211 context
= SECTION_CONTEXT_SET_LMA
;
4213 case OPTION_CHANGE_SECTION_VMA
:
4214 context
= SECTION_CONTEXT_SET_VMA
;
4220 name
= (char *) xmalloc (len
+ 1);
4221 strncpy (name
, optarg
, len
);
4224 p
= find_section_list (name
, TRUE
, context
);
4226 val
= parse_vma (s
+ 1, option
);
4232 case OPTION_CHANGE_SECTION_ADDRESS
:
4236 case OPTION_CHANGE_SECTION_LMA
:
4240 case OPTION_CHANGE_SECTION_VMA
:
4247 case OPTION_CHANGE_ADDRESSES
:
4248 change_section_address
= parse_vma (optarg
, "--change-addresses");
4249 change_start
= change_section_address
;
4252 case OPTION_CHANGE_WARNINGS
:
4256 case OPTION_CHANGE_LEADING_CHAR
:
4257 change_leading_char
= TRUE
;
4260 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4263 if (strcasecmp (optarg
, "none") == 0)
4264 do_debug_sections
= decompress
;
4265 else if (strcasecmp (optarg
, "zlib") == 0)
4266 do_debug_sections
= compress_zlib
;
4267 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4268 do_debug_sections
= compress_gnu_zlib
;
4269 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4270 do_debug_sections
= compress_gabi_zlib
;
4272 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4276 do_debug_sections
= compress
;
4279 case OPTION_DEBUGGING
:
4280 convert_debugging
= TRUE
;
4283 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4284 do_debug_sections
= decompress
;
4287 case OPTION_ELF_STT_COMMON
:
4288 if (strcasecmp (optarg
, "yes") == 0)
4289 do_elf_stt_common
= elf_stt_common
;
4290 else if (strcasecmp (optarg
, "no") == 0)
4291 do_elf_stt_common
= no_elf_stt_common
;
4293 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4297 case OPTION_GAP_FILL
:
4299 bfd_vma gap_fill_vma
;
4301 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4302 gap_fill
= (bfd_byte
) gap_fill_vma
;
4303 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4307 sprintf_vma (buff
, gap_fill_vma
);
4309 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4312 gap_fill_set
= TRUE
;
4316 case OPTION_NO_CHANGE_WARNINGS
:
4317 change_warn
= FALSE
;
4321 pad_to
= parse_vma (optarg
, "--pad-to");
4325 case OPTION_REMOVE_LEADING_CHAR
:
4326 remove_leading_char
= TRUE
;
4329 case OPTION_REDEFINE_SYM
:
4331 /* Push this redefinition onto redefine_symbol_list. */
4335 const char *nextarg
;
4336 char *source
, *target
;
4338 s
= strchr (optarg
, '=');
4340 fatal (_("bad format for %s"), "--redefine-sym");
4343 source
= (char *) xmalloc (len
+ 1);
4344 strncpy (source
, optarg
, len
);
4348 len
= strlen (nextarg
);
4349 target
= (char *) xmalloc (len
+ 1);
4350 strcpy (target
, nextarg
);
4352 redefine_list_append ("--redefine-sym", source
, target
);
4359 case OPTION_REDEFINE_SYMS
:
4360 add_redefine_syms_file (optarg
);
4363 case OPTION_SET_SECTION_FLAGS
:
4365 struct section_list
*p
;
4370 s
= strchr (optarg
, '=');
4372 fatal (_("bad format for %s"), "--set-section-flags");
4375 name
= (char *) xmalloc (len
+ 1);
4376 strncpy (name
, optarg
, len
);
4379 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4381 p
->flags
= parse_flags (s
+ 1);
4385 case OPTION_RENAME_SECTION
:
4388 const char *eq
, *fl
;
4393 eq
= strchr (optarg
, '=');
4395 fatal (_("bad format for %s"), "--rename-section");
4399 fatal (_("bad format for %s"), "--rename-section");
4401 old_name
= (char *) xmalloc (len
+ 1);
4402 strncpy (old_name
, optarg
, len
);
4406 fl
= strchr (eq
, ',');
4409 flags
= parse_flags (fl
+ 1);
4419 fatal (_("bad format for %s"), "--rename-section");
4421 new_name
= (char *) xmalloc (len
+ 1);
4422 strncpy (new_name
, eq
, len
);
4425 add_section_rename (old_name
, new_name
, flags
);
4429 case OPTION_SET_START
:
4430 set_start
= parse_vma (optarg
, "--set-start");
4431 set_start_set
= TRUE
;
4434 case OPTION_SREC_LEN
:
4435 Chunk
= parse_vma (optarg
, "--srec-len");
4438 case OPTION_SREC_FORCES3
:
4442 case OPTION_STRIP_SYMBOLS
:
4443 add_specific_symbols (optarg
, strip_specific_htab
);
4446 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4447 add_specific_symbols (optarg
, strip_unneeded_htab
);
4450 case OPTION_KEEP_SYMBOLS
:
4451 add_specific_symbols (optarg
, keep_specific_htab
);
4454 case OPTION_LOCALIZE_HIDDEN
:
4455 localize_hidden
= TRUE
;
4458 case OPTION_LOCALIZE_SYMBOLS
:
4459 add_specific_symbols (optarg
, localize_specific_htab
);
4462 case OPTION_LONG_SECTION_NAMES
:
4463 if (!strcmp ("enable", optarg
))
4464 long_section_names
= ENABLE
;
4465 else if (!strcmp ("disable", optarg
))
4466 long_section_names
= DISABLE
;
4467 else if (!strcmp ("keep", optarg
))
4468 long_section_names
= KEEP
;
4470 fatal (_("unknown long section names option '%s'"), optarg
);
4473 case OPTION_GLOBALIZE_SYMBOLS
:
4474 add_specific_symbols (optarg
, globalize_specific_htab
);
4477 case OPTION_KEEPGLOBAL_SYMBOLS
:
4478 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4481 case OPTION_WEAKEN_SYMBOLS
:
4482 add_specific_symbols (optarg
, weaken_specific_htab
);
4485 case OPTION_ALT_MACH_CODE
:
4486 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4487 if (use_alt_mach_code
== 0)
4488 fatal (_("unable to parse alternative machine code"));
4491 case OPTION_PREFIX_SYMBOLS
:
4492 prefix_symbols_string
= optarg
;
4495 case OPTION_PREFIX_SECTIONS
:
4496 prefix_sections_string
= optarg
;
4499 case OPTION_PREFIX_ALLOC_SECTIONS
:
4500 prefix_alloc_sections_string
= optarg
;
4503 case OPTION_READONLY_TEXT
:
4504 bfd_flags_to_set
|= WP_TEXT
;
4505 bfd_flags_to_clear
&= ~WP_TEXT
;
4508 case OPTION_WRITABLE_TEXT
:
4509 bfd_flags_to_clear
|= WP_TEXT
;
4510 bfd_flags_to_set
&= ~WP_TEXT
;
4514 bfd_flags_to_set
|= D_PAGED
;
4515 bfd_flags_to_clear
&= ~D_PAGED
;
4519 bfd_flags_to_clear
|= D_PAGED
;
4520 bfd_flags_to_set
&= ~D_PAGED
;
4523 case OPTION_EXTRACT_DWO
:
4524 strip_symbols
= STRIP_NONDWO
;
4527 case OPTION_EXTRACT_SYMBOL
:
4528 extract_symbol
= TRUE
;
4531 case OPTION_REVERSE_BYTES
:
4533 int prev
= reverse_bytes
;
4535 reverse_bytes
= atoi (optarg
);
4536 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4537 fatal (_("number of bytes to reverse must be positive and even"));
4539 if (prev
&& prev
!= reverse_bytes
)
4540 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4545 case OPTION_FILE_ALIGNMENT
:
4546 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4552 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4554 || (*end
!= '.' && *end
!= '\0'))
4555 non_fatal (_("%s: invalid reserve value for --heap"),
4557 else if (*end
!= '\0')
4559 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4561 non_fatal (_("%s: invalid commit value for --heap"),
4567 case OPTION_IMAGE_BASE
:
4568 pe_image_base
= parse_vma (optarg
, "--image-base");
4571 case OPTION_SECTION_ALIGNMENT
:
4572 pe_section_alignment
= parse_vma (optarg
,
4573 "--section-alignment");
4576 case OPTION_SUBSYSTEM
:
4577 set_pe_subsystem (optarg
);
4583 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4585 || (*end
!= '.' && *end
!= '\0'))
4586 non_fatal (_("%s: invalid reserve value for --stack"),
4588 else if (*end
!= '\0')
4590 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4592 non_fatal (_("%s: invalid commit value for --stack"),
4599 /* We've been given a long option. */
4604 copy_usage (stdout
, 0);
4607 copy_usage (stderr
, 1);
4618 print_version ("objcopy");
4620 if (interleave
&& copy_byte
== -1)
4621 fatal (_("interleave start byte must be set with --byte"));
4623 if (copy_byte
>= interleave
)
4624 fatal (_("byte number must be less than interleave"));
4626 if (copy_width
> interleave
- copy_byte
)
4627 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4629 if (optind
== argc
|| optind
+ 2 < argc
)
4630 copy_usage (stderr
, 1);
4632 input_filename
= argv
[optind
];
4633 if (optind
+ 1 < argc
)
4634 output_filename
= argv
[optind
+ 1];
4636 default_deterministic ();
4638 /* Default is to strip no symbols. */
4639 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4640 strip_symbols
= STRIP_NONE
;
4642 if (output_target
== NULL
)
4643 output_target
= input_target
;
4645 /* Convert input EFI target to PEI target. */
4646 if (input_target
!= NULL
4647 && strncmp (input_target
, "efi-", 4) == 0)
4651 efi
= xstrdup (output_target
+ 4);
4652 if (strncmp (efi
, "bsdrv-", 6) == 0
4653 || strncmp (efi
, "rtdrv-", 6) == 0)
4655 else if (strncmp (efi
, "app-", 4) != 0)
4656 fatal (_("unknown input EFI target: %s"), input_target
);
4659 convert_efi_target (efi
);
4662 /* Convert output EFI target to PEI target. */
4663 if (output_target
!= NULL
4664 && strncmp (output_target
, "efi-", 4) == 0)
4668 efi
= xstrdup (output_target
+ 4);
4669 if (strncmp (efi
, "app-", 4) == 0)
4671 if (pe_subsystem
== -1)
4672 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4674 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4676 if (pe_subsystem
== -1)
4677 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4680 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4682 if (pe_subsystem
== -1)
4683 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4687 fatal (_("unknown output EFI target: %s"), output_target
);
4689 if (pe_file_alignment
== (bfd_vma
) -1)
4690 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4691 if (pe_section_alignment
== (bfd_vma
) -1)
4692 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4694 output_target
= efi
;
4695 convert_efi_target (efi
);
4699 if (stat (input_filename
, & statbuf
) < 0)
4700 fatal (_("warning: could not locate '%s'. System error message: %s"),
4701 input_filename
, strerror (errno
));
4703 /* If there is no destination file, or the source and destination files
4704 are the same, then create a temp and rename the result into the input. */
4705 if (output_filename
== NULL
4706 || filename_cmp (input_filename
, output_filename
) == 0)
4707 tmpname
= make_tempname (input_filename
);
4709 tmpname
= output_filename
;
4711 if (tmpname
== NULL
)
4712 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4713 input_filename
, strerror (errno
));
4715 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4719 set_times (tmpname
, &statbuf
);
4720 if (tmpname
!= output_filename
)
4721 status
= (smart_rename (tmpname
, input_filename
,
4722 preserve_dates
) != 0);
4725 unlink_if_ordinary (tmpname
);
4729 struct section_list
*p
;
4731 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4735 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4739 sprintf_vma (buff
, p
->vma_val
);
4741 /* xgettext:c-format */
4742 non_fatal (_("%s %s%c0x%s never used"),
4743 "--change-section-vma",
4745 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4749 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4753 sprintf_vma (buff
, p
->lma_val
);
4755 /* xgettext:c-format */
4756 non_fatal (_("%s %s%c0x%s never used"),
4757 "--change-section-lma",
4759 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4770 main (int argc
, char *argv
[])
4772 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4773 setlocale (LC_MESSAGES
, "");
4775 #if defined (HAVE_SETLOCALE)
4776 setlocale (LC_CTYPE
, "");
4778 bindtextdomain (PACKAGE
, LOCALEDIR
);
4779 textdomain (PACKAGE
);
4781 program_name
= argv
[0];
4782 xmalloc_set_program_name (program_name
);
4784 START_PROGRESS (program_name
, 0);
4786 expandargv (&argc
, &argv
);
4788 strip_symbols
= STRIP_UNDEF
;
4789 discard_locals
= LOCALS_UNDEF
;
4792 set_default_bfd_target ();
4796 int i
= strlen (program_name
);
4797 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4798 /* Drop the .exe suffix, if any. */
4799 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4802 program_name
[i
] = '\0';
4805 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4808 create_symbol_htabs ();
4811 bfd_set_error_program_name (argv
[0]);
4814 strip_main (argc
, argv
);
4816 copy_main (argc
, argv
);
4818 END_PROGRESS (program_name
);