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 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1131 ghdr
= &elf_section_data (group
)->this_hdr
;
1132 if (ghdr
->sh_link
< elf_numsections (abfd
))
1134 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1135 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1137 if (symhdr
->sh_type
== SHT_SYMTAB
1138 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1139 return isympp
[ghdr
->sh_info
- 1];
1144 /* Return TRUE if the section is a DWO section. */
1147 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1149 const char *name
= bfd_get_section_name (abfd
, sec
);
1150 int len
= strlen (name
);
1152 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1155 /* Return TRUE if section SEC is in the update list. */
1158 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1160 if (update_sections
!= NULL
)
1162 struct section_add
*pupdate
;
1164 for (pupdate
= update_sections
;
1166 pupdate
= pupdate
->next
)
1168 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1176 /* See if a non-group section is being removed. */
1179 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1181 if (sections_removed
|| sections_copied
)
1183 struct section_list
*p
;
1184 struct section_list
*q
;
1186 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1187 SECTION_CONTEXT_REMOVE
);
1188 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1189 SECTION_CONTEXT_COPY
);
1192 fatal (_("error: section %s matches both remove and copy options"),
1193 bfd_get_section_name (abfd
, sec
));
1194 if (p
&& is_update_section (abfd
, sec
))
1195 fatal (_("error: section %s matches both update and remove options"),
1196 bfd_get_section_name (abfd
, sec
));
1200 if (sections_copied
&& q
== NULL
)
1204 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1206 if (strip_symbols
== STRIP_DEBUG
1207 || strip_symbols
== STRIP_UNNEEDED
1208 || strip_symbols
== STRIP_ALL
1209 || discard_locals
== LOCALS_ALL
1210 || convert_debugging
)
1212 /* By default we don't want to strip .reloc section.
1213 This section has for pe-coff special meaning. See
1214 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1215 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1219 if (strip_symbols
== STRIP_DWO
)
1220 return is_dwo_section (abfd
, sec
);
1222 if (strip_symbols
== STRIP_NONDEBUG
)
1226 if (strip_symbols
== STRIP_NONDWO
)
1227 return !is_dwo_section (abfd
, sec
);
1232 /* See if a section is being removed. */
1235 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1237 if (is_strip_section_1 (abfd
, sec
))
1240 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1244 asection
*elt
, *first
;
1247 If we are going to strip the group signature symbol, then
1248 strip the group section too. */
1249 gsym
= group_signature (sec
);
1254 if ((strip_symbols
== STRIP_ALL
1255 && !is_specified_symbol (gname
, keep_specific_htab
))
1256 || is_specified_symbol (gname
, strip_specific_htab
))
1259 /* Remove the group section if all members are removed. */
1260 first
= elt
= elf_next_in_group (sec
);
1263 if (!is_strip_section_1 (abfd
, elt
))
1265 elt
= elf_next_in_group (elt
);
1277 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1279 /* Always keep ELF note sections. */
1280 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1281 return (elf_section_type (isection
) == SHT_NOTE
);
1283 /* Always keep the .buildid section for PE/COFF.
1285 Strictly, this should be written "always keep the section storing the debug
1286 directory", but that may be the .text section for objects produced by some
1287 tools, which it is not sensible to keep. */
1288 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1289 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1294 /* Return true if SYM is a hidden symbol. */
1297 is_hidden_symbol (asymbol
*sym
)
1299 elf_symbol_type
*elf_sym
;
1301 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1302 if (elf_sym
!= NULL
)
1303 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1313 need_sym_before (struct addsym_node
**node
, const char *sym
)
1316 struct addsym_node
*ptr
= add_sym_list
;
1318 /* 'othersym' symbols are at the front of the list. */
1319 for (count
= 0; count
< add_symbols
; count
++)
1323 else if (strcmp (ptr
->othersym
, sym
) == 0)
1325 free (ptr
->othersym
);
1326 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1336 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1338 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1340 bfd_asymbol_name (sym
) = ptr
->symdef
;
1341 sym
->value
= ptr
->symval
;
1342 sym
->flags
= ptr
->flags
;
1345 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1347 fatal (_("Section %s not found"), ptr
->section
);
1351 sym
->section
= bfd_abs_section_ptr
;
1355 /* Choose which symbol entries to copy; put the result in OSYMS.
1356 We don't copy in place, because that confuses the relocs.
1357 Return the number of symbols to print. */
1360 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1361 asymbol
**isyms
, long symcount
)
1363 asymbol
**from
= isyms
, **to
= osyms
;
1364 long src_count
= 0, dst_count
= 0;
1365 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1367 for (; src_count
< symcount
; src_count
++)
1369 asymbol
*sym
= from
[src_count
];
1370 flagword flags
= sym
->flags
;
1371 char *name
= (char *) bfd_asymbol_name (sym
);
1373 bfd_boolean used_in_reloc
= FALSE
;
1374 bfd_boolean undefined
;
1375 bfd_boolean rem_leading_char
;
1376 bfd_boolean add_leading_char
;
1378 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1382 struct addsym_node
*ptr
;
1384 if (need_sym_before (&ptr
, name
))
1385 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1388 if (redefine_sym_list
)
1390 char *old_name
, *new_name
;
1392 old_name
= (char *) bfd_asymbol_name (sym
);
1393 new_name
= (char *) lookup_sym_redefinition (old_name
);
1394 bfd_asymbol_name (sym
) = new_name
;
1398 /* Check if we will remove the current leading character. */
1400 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1401 && (change_leading_char
1402 || (remove_leading_char
1403 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1405 || bfd_is_com_section (bfd_get_section (sym
)))));
1407 /* Check if we will add a new leading character. */
1410 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1411 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1412 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1414 /* Short circuit for change_leading_char if we can do it in-place. */
1415 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1417 name
[0] = bfd_get_symbol_leading_char (obfd
);
1418 bfd_asymbol_name (sym
) = name
;
1419 rem_leading_char
= FALSE
;
1420 add_leading_char
= FALSE
;
1423 /* Remove leading char. */
1424 if (rem_leading_char
)
1425 bfd_asymbol_name (sym
) = ++name
;
1427 /* Add new leading char and/or prefix. */
1428 if (add_leading_char
|| prefix_symbols_string
)
1432 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1433 + strlen (name
) + 1);
1434 if (add_leading_char
)
1435 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1437 if (prefix_symbols_string
)
1439 strcpy (ptr
, prefix_symbols_string
);
1440 ptr
+= strlen (prefix_symbols_string
);
1444 bfd_asymbol_name (sym
) = n
;
1448 if (strip_symbols
== STRIP_ALL
)
1450 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1451 || ((flags
& BSF_SECTION_SYM
) != 0
1452 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1456 used_in_reloc
= TRUE
;
1458 else if (relocatable
/* Relocatable file. */
1459 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1460 || bfd_is_com_section (bfd_get_section (sym
))))
1462 else if (bfd_decode_symclass (sym
) == 'I')
1463 /* Global symbols in $idata sections need to be retained
1464 even if relocatable is FALSE. External users of the
1465 library containing the $idata section may reference these
1468 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1469 || (flags
& BSF_WEAK
) != 0
1471 || bfd_is_com_section (bfd_get_section (sym
)))
1472 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1473 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1474 keep
= (strip_symbols
!= STRIP_DEBUG
1475 && strip_symbols
!= STRIP_UNNEEDED
1476 && ! convert_debugging
);
1477 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1478 /* COMDAT sections store special information in local
1479 symbols, so we cannot risk stripping any of them. */
1481 else /* Local symbol. */
1482 keep
= (strip_symbols
!= STRIP_UNNEEDED
1483 && (discard_locals
!= LOCALS_ALL
1484 && (discard_locals
!= LOCALS_START_L
1485 || ! bfd_is_local_label (abfd
, sym
))));
1487 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1489 /* There are multiple ways to set 'keep' above, but if it
1490 was the relocatable symbol case, then that's an error. */
1493 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1501 && !(flags
& BSF_KEEP
)
1502 && is_specified_symbol (name
, strip_unneeded_htab
))
1506 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1507 || is_specified_symbol (name
, keep_specific_htab
)))
1510 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1515 if ((flags
& BSF_GLOBAL
) != 0
1516 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1518 sym
->flags
&= ~ BSF_GLOBAL
;
1519 sym
->flags
|= BSF_WEAK
;
1523 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1524 && (is_specified_symbol (name
, localize_specific_htab
)
1525 || (htab_elements (keepglobal_specific_htab
) != 0
1526 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1527 || (localize_hidden
&& is_hidden_symbol (sym
))))
1529 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1530 sym
->flags
|= BSF_LOCAL
;
1534 && (flags
& BSF_LOCAL
)
1535 && is_specified_symbol (name
, globalize_specific_htab
))
1537 sym
->flags
&= ~ BSF_LOCAL
;
1538 sym
->flags
|= BSF_GLOBAL
;
1541 to
[dst_count
++] = sym
;
1546 struct addsym_node
*ptr
= add_sym_list
;
1548 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1552 if (strcmp (ptr
->othersym
, ""))
1553 fatal (_("'before=%s' not found"), ptr
->othersym
);
1556 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1562 to
[dst_count
] = NULL
;
1567 /* Find the redefined name of symbol SOURCE. */
1570 lookup_sym_redefinition (const char *source
)
1572 struct redefine_node
*list
;
1574 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1575 if (strcmp (source
, list
->source
) == 0)
1576 return list
->target
;
1581 /* Add a node to a symbol redefine list. */
1584 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1586 struct redefine_node
**p
;
1587 struct redefine_node
*list
;
1588 struct redefine_node
*new_node
;
1590 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1592 if (strcmp (source
, list
->source
) == 0)
1593 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1596 if (strcmp (target
, list
->target
) == 0)
1597 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1601 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1603 new_node
->source
= strdup (source
);
1604 new_node
->target
= strdup (target
);
1605 new_node
->next
= NULL
;
1610 /* Handle the --redefine-syms option. Read lines containing "old new"
1611 from the file, and add them to the symbol redefine list. */
1614 add_redefine_syms_file (const char *filename
)
1623 file
= fopen (filename
, "r");
1625 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1626 filename
, strerror (errno
));
1629 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1637 /* Collect the input symbol name. */
1638 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1646 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1654 /* Eat white space between the symbol names. */
1655 while (IS_WHITESPACE (c
))
1657 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1662 /* Collect the output symbol name. */
1664 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1672 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1680 /* Eat white space at end of line. */
1681 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1686 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1687 || c
== '\n' || c
== EOF
)
1690 /* Append the redefinition to the list. */
1692 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1703 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1705 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1706 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1709 /* Eat the rest of the line and finish it. */
1710 while (c
!= '\n' && c
!= EOF
)
1716 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1721 /* Copy unkown object file IBFD onto OBFD.
1722 Returns TRUE upon success, FALSE otherwise. */
1725 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1733 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1735 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1742 non_fatal (_("stat returns negative size for `%s'"),
1743 bfd_get_archive_filename (ibfd
));
1747 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1749 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1754 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1755 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1757 cbuf
= (char *) xmalloc (BUFSIZE
);
1759 while (ncopied
< size
)
1761 tocopy
= size
- ncopied
;
1762 if (tocopy
> BUFSIZE
)
1765 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1766 != (bfd_size_type
) tocopy
)
1768 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1773 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1774 != (bfd_size_type
) tocopy
)
1776 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1784 /* We should at least to be able to read it back when copying an
1785 unknown object in an archive. */
1786 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1791 /* Copy object file IBFD onto OBFD.
1792 Returns TRUE upon success, FALSE otherwise. */
1795 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1799 asection
**osections
= NULL
;
1800 asection
*gnu_debuglink_section
= NULL
;
1801 bfd_size_type
*gaps
= NULL
;
1802 bfd_size_type max_gap
= 0;
1805 enum bfd_architecture iarch
;
1809 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1810 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1811 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1813 /* PR 17636: Call non-fatal so that we return to our parent who
1814 may need to tidy temporary files. */
1815 non_fatal (_("Unable to change endianness of input file(s)"));
1819 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1821 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1825 if (ibfd
->sections
== NULL
)
1827 non_fatal (_("error: the input file '%s' has no sections"),
1828 bfd_get_archive_filename (ibfd
));
1832 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
1834 if ((do_debug_sections
& compress
) != 0
1835 && do_debug_sections
!= compress
)
1837 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1838 bfd_get_archive_filename (ibfd
));
1842 if (do_elf_stt_common
)
1844 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
1845 bfd_get_archive_filename (ibfd
));
1851 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1852 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1853 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1862 start
= bfd_get_start_address (ibfd
);
1863 start
+= change_start
;
1866 /* Neither the start address nor the flags
1867 need to be set for a core file. */
1868 if (bfd_get_format (obfd
) != bfd_core
)
1872 flags
= bfd_get_file_flags (ibfd
);
1873 flags
|= bfd_flags_to_set
;
1874 flags
&= ~bfd_flags_to_clear
;
1875 flags
&= bfd_applicable_file_flags (obfd
);
1877 if (strip_symbols
== STRIP_ALL
)
1878 flags
&= ~HAS_RELOC
;
1880 if (!bfd_set_start_address (obfd
, start
)
1881 || !bfd_set_file_flags (obfd
, flags
))
1883 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1888 /* Copy architecture of input file to output file. */
1889 iarch
= bfd_get_arch (ibfd
);
1890 imach
= bfd_get_mach (ibfd
);
1893 if (bfd_get_arch_info (ibfd
) == NULL
1894 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1896 iarch
= input_arch
->arch
;
1897 imach
= input_arch
->mach
;
1900 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1901 bfd_get_archive_filename (ibfd
));
1903 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1904 && (ibfd
->target_defaulted
1905 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1907 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1908 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1909 bfd_get_archive_filename (ibfd
));
1911 non_fatal (_("Output file cannot represent architecture `%s'"),
1912 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1913 bfd_get_mach (ibfd
)));
1917 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1919 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1923 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1924 && bfd_pei_p (obfd
))
1926 /* Set up PE parameters. */
1927 pe_data_type
*pe
= pe_data (obfd
);
1929 /* Copy PE parameters before changing them. */
1930 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1931 && bfd_pei_p (ibfd
))
1932 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1934 if (pe_file_alignment
!= (bfd_vma
) -1)
1935 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1937 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1939 if (pe_heap_commit
!= (bfd_vma
) -1)
1940 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1942 if (pe_heap_reserve
!= (bfd_vma
) -1)
1943 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1945 if (pe_image_base
!= (bfd_vma
) -1)
1946 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1948 if (pe_section_alignment
!= (bfd_vma
) -1)
1949 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1951 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1953 if (pe_stack_commit
!= (bfd_vma
) -1)
1954 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1956 if (pe_stack_reserve
!= (bfd_vma
) -1)
1957 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1959 if (pe_subsystem
!= -1)
1960 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1962 if (pe_major_subsystem_version
!= -1)
1963 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1965 if (pe_minor_subsystem_version
!= -1)
1966 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1968 if (pe_file_alignment
> pe_section_alignment
)
1970 char file_alignment
[20], section_alignment
[20];
1972 sprintf_vma (file_alignment
, pe_file_alignment
);
1973 sprintf_vma (section_alignment
, pe_section_alignment
);
1974 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1976 file_alignment
, section_alignment
);
1983 if (osympp
!= isympp
)
1989 symsize
= bfd_get_symtab_upper_bound (ibfd
);
1992 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1996 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
1997 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2000 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2003 /* PR 17512: file: d6323821
2004 If the symbol table could not be loaded do not pretend that we have
2005 any symbols. This trips us up later on when we load the relocs. */
2009 osympp
= isympp
= NULL
;
2012 /* BFD mandates that all output sections be created and sizes set before
2013 any output is done. Thus, we traverse all sections multiple times. */
2014 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2016 if (!extract_symbol
)
2017 setup_bfd_headers (ibfd
, obfd
);
2019 if (add_sections
!= NULL
)
2021 struct section_add
*padd
;
2022 struct section_list
*pset
;
2024 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2028 pset
= find_section_list (padd
->name
, FALSE
,
2029 SECTION_CONTEXT_SET_FLAGS
);
2031 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2033 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2035 /* bfd_make_section_with_flags() does not return very helpful
2036 error codes, so check for the most likely user error first. */
2037 if (bfd_get_section_by_name (obfd
, padd
->name
))
2039 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2040 _("can't add section '%s'"), padd
->name
);
2045 /* We use LINKER_CREATED here so that the backend hooks
2046 will create any special section type information,
2047 instead of presuming we know what we're doing merely
2048 because we set the flags. */
2049 padd
->section
= bfd_make_section_with_flags
2050 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2051 if (padd
->section
== NULL
)
2053 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2054 _("can't create section `%s'"),
2060 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2062 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2066 pset
= find_section_list (padd
->name
, FALSE
,
2067 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2069 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2071 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2075 pset
= find_section_list (padd
->name
, FALSE
,
2076 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2079 padd
->section
->lma
= pset
->lma_val
;
2081 if (! bfd_set_section_alignment
2082 (obfd
, padd
->section
,
2083 bfd_section_alignment (obfd
, padd
->section
)))
2085 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2092 if (update_sections
!= NULL
)
2094 struct section_add
*pupdate
;
2096 for (pupdate
= update_sections
;
2098 pupdate
= pupdate
->next
)
2102 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2103 if (pupdate
->section
== NULL
)
2105 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2109 osec
= pupdate
->section
->output_section
;
2110 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2112 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2118 if (dump_sections
!= NULL
)
2120 struct section_add
* pdump
;
2122 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2126 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2129 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2130 _("can't dump section '%s' - it does not exist"),
2135 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
2137 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2138 _("can't dump section - it has no contents"));
2142 bfd_size_type size
= bfd_get_section_size (sec
);
2145 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2146 _("can't dump section - it is empty"));
2151 f
= fopen (pdump
->filename
, FOPEN_WB
);
2154 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2155 _("could not open section dump file"));
2159 bfd_byte
* contents
= xmalloc (size
);
2160 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
2162 if (fwrite (contents
, 1, size
, f
) != size
)
2164 non_fatal (_("error writing section contents to %s (error: %s)"),
2171 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2172 _("could not retrieve section contents"));
2179 if (gnu_debuglink_filename
!= NULL
)
2181 /* PR 15125: Give a helpful warning message if
2182 the debuglink section already exists, and
2183 allow the rest of the copy to complete. */
2184 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2186 non_fatal (_("%s: debuglink section already exists"),
2187 bfd_get_filename (obfd
));
2188 gnu_debuglink_filename
= NULL
;
2192 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2193 (obfd
, gnu_debuglink_filename
);
2195 if (gnu_debuglink_section
== NULL
)
2197 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2198 _("cannot create debug link section `%s'"),
2199 gnu_debuglink_filename
);
2203 /* Special processing for PE format files. We
2204 have no way to distinguish PE from COFF here. */
2205 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2207 bfd_vma debuglink_vma
;
2208 asection
* highest_section
;
2211 /* The PE spec requires that all sections be adjacent and sorted
2212 in ascending order of VMA. It also specifies that debug
2213 sections should be last. This is despite the fact that debug
2214 sections are not loaded into memory and so in theory have no
2217 This means that the debuglink section must be given a non-zero
2218 VMA which makes it contiguous with other debug sections. So
2219 walk the current section list, find the section with the
2220 highest VMA and start the debuglink section after that one. */
2221 for (sec
= obfd
->sections
, highest_section
= NULL
;
2225 && (highest_section
== NULL
2226 || sec
->vma
> highest_section
->vma
))
2227 highest_section
= sec
;
2229 if (highest_section
)
2230 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2231 + highest_section
->size
,
2232 /* FIXME: We ought to be using
2233 COFF_PAGE_SIZE here or maybe
2234 bfd_get_section_alignment() (if it
2235 was set) but since this is for PE
2236 and we know the required alignment
2237 it is easier just to hard code it. */
2240 /* Umm, not sure what to do in this case. */
2241 debuglink_vma
= 0x1000;
2243 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2248 c
= bfd_count_sections (obfd
);
2250 && (gap_fill_set
|| pad_to_set
))
2254 /* We must fill in gaps between the sections and/or we must pad
2255 the last section to a specified address. We do this by
2256 grabbing a list of the sections, sorting them by VMA, and
2257 increasing the section sizes as required to fill the gaps.
2258 We write out the gap contents below. */
2260 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2262 bfd_map_over_sections (obfd
, get_sections
, &set
);
2264 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2266 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2267 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2271 for (i
= 0; i
< c
- 1; i
++)
2275 bfd_vma gap_start
, gap_stop
;
2277 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2278 if ((flags
& SEC_HAS_CONTENTS
) == 0
2279 || (flags
& SEC_LOAD
) == 0)
2282 size
= bfd_section_size (obfd
, osections
[i
]);
2283 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2284 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2285 if (gap_start
< gap_stop
)
2287 if (! bfd_set_section_size (obfd
, osections
[i
],
2288 size
+ (gap_stop
- gap_start
)))
2290 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2291 _("Can't fill gap after section"));
2295 gaps
[i
] = gap_stop
- gap_start
;
2296 if (max_gap
< gap_stop
- gap_start
)
2297 max_gap
= gap_stop
- gap_start
;
2307 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2308 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2309 if (lma
+ size
< pad_to
)
2311 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2314 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2315 _("can't add padding"));
2320 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2321 if (max_gap
< pad_to
- (lma
+ size
))
2322 max_gap
= pad_to
- (lma
+ size
);
2328 /* Symbol filtering must happen after the output sections
2329 have been created, but before their contents are set. */
2331 if (convert_debugging
)
2332 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2334 if (strip_symbols
== STRIP_DEBUG
2335 || strip_symbols
== STRIP_ALL
2336 || strip_symbols
== STRIP_UNNEEDED
2337 || strip_symbols
== STRIP_NONDEBUG
2338 || strip_symbols
== STRIP_DWO
2339 || strip_symbols
== STRIP_NONDWO
2340 || discard_locals
!= LOCALS_UNDEF
2342 || htab_elements (strip_specific_htab
) != 0
2343 || htab_elements (keep_specific_htab
) != 0
2344 || htab_elements (localize_specific_htab
) != 0
2345 || htab_elements (globalize_specific_htab
) != 0
2346 || htab_elements (keepglobal_specific_htab
) != 0
2347 || htab_elements (weaken_specific_htab
) != 0
2348 || prefix_symbols_string
2351 || convert_debugging
2352 || change_leading_char
2353 || remove_leading_char
2354 || redefine_sym_list
2358 /* Mark symbols used in output relocations so that they
2359 are kept, even if they are local labels or static symbols.
2361 Note we iterate over the input sections examining their
2362 relocations since the relocations for the output sections
2363 haven't been set yet. mark_symbols_used_in_relocations will
2364 ignore input sections which have no corresponding output
2366 if (strip_symbols
!= STRIP_ALL
)
2367 bfd_map_over_sections (ibfd
,
2368 mark_symbols_used_in_relocations
,
2370 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
2371 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2374 if (convert_debugging
&& dhandle
!= NULL
)
2376 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2383 bfd_set_symtab (obfd
, osympp
, symcount
);
2385 /* This has to happen before section positions are set. */
2386 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2388 /* This has to happen after the symbol table has been set. */
2389 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2391 if (add_sections
!= NULL
)
2393 struct section_add
*padd
;
2395 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2397 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2400 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2406 if (update_sections
!= NULL
)
2408 struct section_add
*pupdate
;
2410 for (pupdate
= update_sections
;
2412 pupdate
= pupdate
->next
)
2416 osec
= pupdate
->section
->output_section
;
2417 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2420 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2426 if (gnu_debuglink_filename
!= NULL
)
2428 if (! bfd_fill_in_gnu_debuglink_section
2429 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2431 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2432 _("cannot fill debug link section `%s'"),
2433 gnu_debuglink_filename
);
2438 if (gap_fill_set
|| pad_to_set
)
2442 /* Fill in the gaps. */
2445 buf
= (bfd_byte
*) xmalloc (max_gap
);
2446 memset (buf
, gap_fill
, max_gap
);
2448 c
= bfd_count_sections (obfd
);
2449 for (i
= 0; i
< c
; i
++)
2457 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2468 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2471 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2482 /* Allow the BFD backend to copy any private data it understands
2483 from the input BFD to the output BFD. This is done last to
2484 permit the routine to look at the filtered symbol table, which is
2485 important for the ECOFF code at least. */
2486 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2488 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2489 _("error copying private BFD data"));
2493 /* Switch to the alternate machine code. We have to do this at the
2494 very end, because we only initialize the header when we create
2495 the first section. */
2496 if (use_alt_mach_code
!= 0)
2498 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2500 non_fatal (_("this target does not support %lu alternative machine codes"),
2502 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2504 non_fatal (_("treating that number as an absolute e_machine value instead"));
2505 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2508 non_fatal (_("ignoring the alternative value"));
2515 /* Read each archive element in turn from IBFD, copy the
2516 contents to temp file, and keep the temp file handle.
2517 If 'force_output_target' is TRUE then make sure that
2518 all elements in the new archive are of the type
2522 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2523 bfd_boolean force_output_target
,
2524 const bfd_arch_info_type
*input_arch
)
2528 struct name_list
*next
;
2532 bfd
**ptr
= &obfd
->archive_head
;
2535 const char *filename
;
2537 /* Make a temp directory to hold the contents. */
2538 dir
= make_tempdir (bfd_get_filename (obfd
));
2540 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2543 if (strip_symbols
== STRIP_ALL
)
2544 obfd
->has_armap
= FALSE
;
2546 obfd
->has_armap
= ibfd
->has_armap
;
2547 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2550 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2554 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2556 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2559 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2560 goto cleanup_and_exit
;
2563 while (!status
&& this_element
!= NULL
)
2569 int stat_status
= 0;
2570 bfd_boolean del
= TRUE
;
2571 bfd_boolean ok_object
;
2573 /* PR binutils/17533: Do not allow directory traversal
2574 outside of the current directory tree by archive members. */
2575 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2577 non_fatal (_("illegal pathname found in archive member: %s"),
2578 bfd_get_filename (this_element
));
2580 goto cleanup_and_exit
;
2583 /* Create an output file for this member. */
2584 output_name
= concat (dir
, "/",
2585 bfd_get_filename (this_element
), (char *) 0);
2587 /* If the file already exists, make another temp dir. */
2588 if (stat (output_name
, &buf
) >= 0)
2590 output_name
= make_tempdir (output_name
);
2591 if (output_name
== NULL
)
2593 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2596 goto cleanup_and_exit
;
2599 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2600 l
->name
= output_name
;
2604 output_name
= concat (output_name
, "/",
2605 bfd_get_filename (this_element
), (char *) 0);
2610 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2612 if (stat_status
!= 0)
2613 non_fatal (_("internal stat error on %s"),
2614 bfd_get_filename (this_element
));
2617 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2618 l
->name
= output_name
;
2623 ok_object
= bfd_check_format (this_element
, bfd_object
);
2625 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2626 _("Unable to recognise the format of file"));
2628 /* PR binutils/3110: Cope with archives
2629 containing multiple target types. */
2630 if (force_output_target
|| !ok_object
)
2631 output_bfd
= bfd_openw (output_name
, output_target
);
2633 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2635 if (output_bfd
== NULL
)
2637 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2639 goto cleanup_and_exit
;
2644 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2646 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2647 /* Try again as an unknown object file. */
2649 else if (!bfd_close (output_bfd
))
2651 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2652 /* Error in new object file. Don't change archive. */
2659 del
= !copy_unknown_object (this_element
, output_bfd
);
2660 if (!bfd_close_all_done (output_bfd
))
2662 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2663 /* Error in new object file. Don't change archive. */
2670 unlink (output_name
);
2675 if (preserve_dates
&& stat_status
== 0)
2676 set_times (output_name
, &buf
);
2678 /* Open the newly output file and attach to our list. */
2679 output_bfd
= bfd_openr (output_name
, output_target
);
2681 l
->obfd
= output_bfd
;
2684 ptr
= &output_bfd
->archive_next
;
2686 last_element
= this_element
;
2688 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2690 bfd_close (last_element
);
2695 filename
= bfd_get_filename (obfd
);
2696 if (!bfd_close (obfd
))
2699 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2702 filename
= bfd_get_filename (ibfd
);
2703 if (!bfd_close (ibfd
))
2706 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2710 /* Delete all the files that we opened. */
2711 for (l
= list
; l
!= NULL
; l
= l
->next
)
2713 if (l
->obfd
== NULL
)
2717 bfd_close (l
->obfd
);
2726 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2728 /* This is only relevant to Coff targets. */
2729 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2732 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2733 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2734 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2738 /* The top-level control. */
2741 copy_file (const char *input_filename
, const char *output_filename
,
2742 const char *input_target
, const char *output_target
,
2743 const bfd_arch_info_type
*input_arch
)
2746 char **obj_matching
;
2747 char **core_matching
;
2748 off_t size
= get_file_size (input_filename
);
2753 non_fatal (_("error: the input file '%s' is empty"),
2759 /* To allow us to do "strip *" without dying on the first
2760 non-object file, failures are nonfatal. */
2761 ibfd
= bfd_openr (input_filename
, input_target
);
2764 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2769 switch (do_debug_sections
)
2773 case compress_gnu_zlib
:
2774 case compress_gabi_zlib
:
2775 ibfd
->flags
|= BFD_COMPRESS
;
2776 /* Don't check if input is ELF here since this information is
2777 only available after bfd_check_format_matches is called. */
2778 if (do_debug_sections
!= compress_gnu_zlib
)
2779 ibfd
->flags
|= BFD_COMPRESS_GABI
;
2782 ibfd
->flags
|= BFD_DECOMPRESS
;
2788 switch (do_elf_stt_common
)
2790 case elf_stt_common
:
2791 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
2794 case no_elf_stt_common
:
2795 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
2801 if (bfd_check_format (ibfd
, bfd_archive
))
2803 bfd_boolean force_output_target
;
2806 /* bfd_get_target does not return the correct value until
2807 bfd_check_format succeeds. */
2808 if (output_target
== NULL
)
2810 output_target
= bfd_get_target (ibfd
);
2811 force_output_target
= FALSE
;
2814 force_output_target
= TRUE
;
2816 obfd
= bfd_openw (output_filename
, output_target
);
2819 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2823 /* This is a no-op on non-Coff targets. */
2824 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2826 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2828 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2833 /* bfd_get_target does not return the correct value until
2834 bfd_check_format succeeds. */
2835 if (output_target
== NULL
)
2836 output_target
= bfd_get_target (ibfd
);
2838 obfd
= bfd_openw (output_filename
, output_target
);
2841 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2845 /* This is a no-op on non-Coff targets. */
2846 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2848 if (! copy_object (ibfd
, obfd
, input_arch
))
2851 /* PR 17512: file: 0f15796a.
2852 If the file could not be copied it may not be in a writeable
2853 state. So use bfd_close_all_done to avoid the possibility of
2854 writing uninitialised data into the file. */
2855 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2858 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2862 if (!bfd_close (ibfd
))
2865 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2871 bfd_error_type obj_error
= bfd_get_error ();
2872 bfd_error_type core_error
;
2874 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2876 /* This probably can't happen.. */
2877 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2878 free (obj_matching
);
2882 core_error
= bfd_get_error ();
2883 /* Report the object error in preference to the core error. */
2884 if (obj_error
!= core_error
)
2885 bfd_set_error (obj_error
);
2887 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2889 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2891 list_matching_formats (obj_matching
);
2892 free (obj_matching
);
2894 if (core_error
== bfd_error_file_ambiguously_recognized
)
2896 list_matching_formats (core_matching
);
2897 free (core_matching
);
2904 /* Add a name to the section renaming list. */
2907 add_section_rename (const char * old_name
, const char * new_name
,
2910 section_rename
* srename
;
2912 /* Check for conflicts first. */
2913 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2914 if (strcmp (srename
->old_name
, old_name
) == 0)
2916 /* Silently ignore duplicate definitions. */
2917 if (strcmp (srename
->new_name
, new_name
) == 0
2918 && srename
->flags
== flags
)
2921 fatal (_("Multiple renames of section %s"), old_name
);
2924 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2926 srename
->old_name
= old_name
;
2927 srename
->new_name
= new_name
;
2928 srename
->flags
= flags
;
2929 srename
->next
= section_rename_list
;
2931 section_rename_list
= srename
;
2934 /* Check the section rename list for a new name of the input section
2935 ISECTION. Return the new name if one is found.
2936 Also set RETURNED_FLAGS to the flags to be used for this section. */
2939 find_section_rename (bfd
* ibfd ATTRIBUTE_UNUSED
, sec_ptr isection
,
2940 flagword
* returned_flags
)
2942 const char * old_name
= bfd_section_name (ibfd
, isection
);
2943 section_rename
* srename
;
2945 /* Default to using the flags of the input section. */
2946 * returned_flags
= bfd_get_section_flags (ibfd
, isection
);
2948 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2949 if (strcmp (srename
->old_name
, old_name
) == 0)
2951 if (srename
->flags
!= (flagword
) -1)
2952 * returned_flags
= srename
->flags
;
2954 return srename
->new_name
;
2960 /* Once each of the sections is copied, we may still need to do some
2961 finalization work for private section headers. Do that here. */
2964 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
2966 /* Allow the BFD backend to copy any private data it understands
2967 from the input section to the output section. */
2968 if (! bfd_copy_private_header_data (ibfd
, obfd
))
2971 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2972 _("error in private header data"));
2976 /* All went well. */
2980 /* Create a section in OBFD with the same
2981 name and attributes as ISECTION in IBFD. */
2984 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2986 bfd
*obfd
= (bfd
*) obfdarg
;
2987 struct section_list
*p
;
2995 char *prefix
= NULL
;
2996 bfd_boolean make_nobits
;
2998 if (is_strip_section (ibfd
, isection
))
3001 /* Get the, possibly new, name of the output section. */
3002 name
= find_section_rename (ibfd
, isection
, & flags
);
3004 /* Prefix sections. */
3005 if ((prefix_alloc_sections_string
)
3006 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3007 prefix
= prefix_alloc_sections_string
;
3008 else if (prefix_sections_string
)
3009 prefix
= prefix_sections_string
;
3015 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3021 make_nobits
= FALSE
;
3023 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3024 SECTION_CONTEXT_SET_FLAGS
);
3026 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3027 else if (strip_symbols
== STRIP_NONDEBUG
3028 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3029 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3031 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3032 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3036 /* Twiddle the input section flags so that it seems to
3037 elf.c:copy_private_bfd_data that section flags have not
3038 changed between input and output sections. This hack
3039 prevents wholesale rewriting of the program headers. */
3040 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3044 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3046 if (osection
== NULL
)
3048 err
= _("failed to create output section");
3053 elf_section_type (osection
) = SHT_NOBITS
;
3055 size
= bfd_section_size (ibfd
, isection
);
3056 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3058 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3059 else if (extract_symbol
)
3061 if (! bfd_set_section_size (obfd
, osection
, size
))
3063 err
= _("failed to set size");
3067 vma
= bfd_section_vma (ibfd
, isection
);
3068 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3069 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3072 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3078 vma
+= change_section_address
;
3080 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3082 err
= _("failed to set vma");
3086 lma
= isection
->lma
;
3087 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3088 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3091 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3097 lma
+= change_section_address
;
3099 osection
->lma
= lma
;
3101 /* FIXME: This is probably not enough. If we change the LMA we
3102 may have to recompute the header for the file as well. */
3103 if (!bfd_set_section_alignment (obfd
,
3105 bfd_section_alignment (ibfd
, isection
)))
3107 err
= _("failed to set alignment");
3111 /* Copy merge entity size. */
3112 osection
->entsize
= isection
->entsize
;
3114 /* Copy compress status. */
3115 osection
->compress_status
= isection
->compress_status
;
3117 /* This used to be mangle_section; we do here to avoid using
3118 bfd_get_section_by_name since some formats allow multiple
3119 sections with the same name. */
3120 isection
->output_section
= osection
;
3121 isection
->output_offset
= 0;
3123 if ((isection
->flags
& SEC_GROUP
) != 0)
3125 asymbol
*gsym
= group_signature (isection
);
3129 gsym
->flags
|= BSF_KEEP
;
3130 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3131 elf_group_id (isection
) = gsym
;
3135 /* Allow the BFD backend to copy any private data it understands
3136 from the input section to the output section. */
3137 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3139 err
= _("failed to copy private data");
3143 /* All went well. */
3148 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3151 /* Return TRUE if input section ISECTION should be skipped. */
3154 skip_section (bfd
*ibfd
, sec_ptr isection
)
3160 /* If we have already failed earlier on,
3161 do not keep on generating complaints now. */
3168 if (is_strip_section (ibfd
, isection
))
3171 if (is_update_section (ibfd
, isection
))
3174 flags
= bfd_get_section_flags (ibfd
, isection
);
3175 if ((flags
& SEC_GROUP
) != 0)
3178 osection
= isection
->output_section
;
3179 size
= bfd_get_section_size (isection
);
3181 if (size
== 0 || osection
== 0)
3187 /* Copy relocations in input section ISECTION of IBFD to an output
3188 section with the same name in OBFDARG. If stripping then don't
3189 copy any relocation info. */
3192 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3194 bfd
*obfd
= (bfd
*) obfdarg
;
3200 if (skip_section (ibfd
, isection
))
3203 osection
= isection
->output_section
;
3205 /* Core files and DWO files do not need to be relocated. */
3206 if (bfd_get_format (obfd
) == bfd_core
|| strip_symbols
== STRIP_NONDWO
)
3210 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3214 /* Do not complain if the target does not support relocations. */
3215 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3220 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3228 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3229 osection
->flags
&= ~SEC_RELOC
;
3233 relpp
= (arelent
**) xmalloc (relsize
);
3234 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3238 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3239 _("relocation count is negative"));
3243 if (strip_symbols
== STRIP_ALL
)
3245 /* Remove relocations which are not in
3246 keep_strip_specific_list. */
3247 arelent
**temp_relpp
;
3248 long temp_relcount
= 0;
3251 temp_relpp
= (arelent
**) xmalloc (relsize
);
3252 for (i
= 0; i
< relcount
; i
++)
3254 /* PR 17512: file: 9e907e0c. */
3255 if (relpp
[i
]->sym_ptr_ptr
3257 && * relpp
[i
]->sym_ptr_ptr
)
3258 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3259 keep_specific_htab
))
3260 temp_relpp
[temp_relcount
++] = relpp
[i
];
3262 relcount
= temp_relcount
;
3267 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3270 osection
->flags
&= ~SEC_RELOC
;
3276 /* Copy the data of input section ISECTION of IBFD
3277 to an output section with the same name in OBFD. */
3280 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3282 bfd
*obfd
= (bfd
*) obfdarg
;
3283 struct section_list
*p
;
3287 if (skip_section (ibfd
, isection
))
3290 osection
= isection
->output_section
;
3291 /* The output SHF_COMPRESSED section size is different from input if
3292 ELF classes of input and output aren't the same. We can't use
3293 the output section size since --interleave will shrink the output
3294 section. Size will be updated if the section is converted. */
3295 size
= bfd_get_section_size (isection
);
3297 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3298 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3300 bfd_byte
*memhunk
= NULL
;
3302 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3303 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3307 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3313 /* We don't handle leftover bytes (too many possible behaviors,
3314 and we don't know what the user wants). The section length
3315 must be a multiple of the number of bytes to swap. */
3316 if ((size
% reverse_bytes
) == 0)
3321 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3322 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3324 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3327 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3328 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3332 /* User must pad the section up in order to do this. */
3333 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3334 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3339 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3340 char *from
= (char *) memhunk
+ copy_byte
;
3341 char *to
= (char *) memhunk
;
3342 char *end
= (char *) memhunk
+ size
;
3345 for (; from
< end
; from
+= interleave
)
3346 for (i
= 0; i
< copy_width
; i
++)
3348 if (&from
[i
] >= end
)
3353 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3354 osection
->lma
/= interleave
;
3357 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3360 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3365 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3366 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3367 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3369 void *memhunk
= xmalloc (size
);
3371 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3372 flag--they can just remove the section entirely and add it
3373 back again. However, we do permit them to turn on the
3374 SEC_HAS_CONTENTS flag, and take it to mean that the section
3375 contents should be zeroed out. */
3377 memset (memhunk
, 0, size
);
3378 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3381 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3388 /* Get all the sections. This is used when --gap-fill or --pad-to is
3392 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3394 asection
***secppp
= (asection
***) secppparg
;
3396 **secppp
= osection
;
3400 /* Sort sections by VMA. This is called via qsort, and is used when
3401 --gap-fill or --pad-to is used. We force non loadable or empty
3402 sections to the front, where they are easier to ignore. */
3405 compare_section_lma (const void *arg1
, const void *arg2
)
3407 const asection
*const *sec1
= (const asection
* const *) arg1
;
3408 const asection
*const *sec2
= (const asection
* const *) arg2
;
3409 flagword flags1
, flags2
;
3411 /* Sort non loadable sections to the front. */
3412 flags1
= (*sec1
)->flags
;
3413 flags2
= (*sec2
)->flags
;
3414 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3415 || (flags1
& SEC_LOAD
) == 0)
3417 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3418 && (flags2
& SEC_LOAD
) != 0)
3423 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3424 || (flags2
& SEC_LOAD
) == 0)
3428 /* Sort sections by LMA. */
3429 if ((*sec1
)->lma
> (*sec2
)->lma
)
3431 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3434 /* Sort sections with the same LMA by size. */
3435 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3437 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3443 /* Mark all the symbols which will be used in output relocations with
3444 the BSF_KEEP flag so that those symbols will not be stripped.
3446 Ignore relocations which will not appear in the output file. */
3449 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3451 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3456 /* Ignore an input section with no corresponding output section. */
3457 if (isection
->output_section
== NULL
)
3460 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3463 /* Do not complain if the target does not support relocations. */
3464 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3466 bfd_fatal (bfd_get_filename (ibfd
));
3472 relpp
= (arelent
**) xmalloc (relsize
);
3473 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3475 bfd_fatal (bfd_get_filename (ibfd
));
3477 /* Examine each symbol used in a relocation. If it's not one of the
3478 special bfd section symbols, then mark it with BSF_KEEP. */
3479 for (i
= 0; i
< relcount
; i
++)
3481 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3482 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3483 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3484 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3491 /* Write out debugging information. */
3494 write_debugging_info (bfd
*obfd
, void *dhandle
,
3495 long *symcountp ATTRIBUTE_UNUSED
,
3496 asymbol
***symppp ATTRIBUTE_UNUSED
)
3498 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3499 return write_ieee_debugging_info (obfd
, dhandle
);
3501 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3502 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3504 bfd_byte
*syms
, *strings
;
3505 bfd_size_type symsize
, stringsize
;
3506 asection
*stabsec
, *stabstrsec
;
3509 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3514 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3515 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3516 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3518 || stabstrsec
== NULL
3519 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3520 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3521 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3522 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3524 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3525 _("can't create debugging section"));
3529 /* We can get away with setting the section contents now because
3530 the next thing the caller is going to do is copy over the
3531 real sections. We may someday have to split the contents
3532 setting out of this function. */
3533 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3534 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3537 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3538 _("can't set debugging section contents"));
3545 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3546 _("don't know how to write debugging information for %s"),
3547 bfd_get_target (obfd
));
3551 /* If neither -D nor -U was specified explicitly,
3552 then use the configured default. */
3554 default_deterministic (void)
3556 if (deterministic
< 0)
3557 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3561 strip_main (int argc
, char *argv
[])
3563 char *input_target
= NULL
;
3564 char *output_target
= NULL
;
3565 bfd_boolean show_version
= FALSE
;
3566 bfd_boolean formats_info
= FALSE
;
3569 char *output_file
= NULL
;
3571 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3572 strip_options
, (int *) 0)) != EOF
)
3577 input_target
= optarg
;
3580 output_target
= optarg
;
3583 input_target
= output_target
= optarg
;
3586 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3587 sections_removed
= TRUE
;
3590 strip_symbols
= STRIP_ALL
;
3594 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3595 strip_symbols
= STRIP_DEBUG
;
3597 case OPTION_STRIP_DWO
:
3598 strip_symbols
= STRIP_DWO
;
3600 case OPTION_STRIP_UNNEEDED
:
3601 strip_symbols
= STRIP_UNNEEDED
;
3604 add_specific_symbol (optarg
, keep_specific_htab
);
3607 add_specific_symbol (optarg
, strip_specific_htab
);
3610 output_file
= optarg
;
3613 preserve_dates
= TRUE
;
3616 deterministic
= TRUE
;
3619 deterministic
= FALSE
;
3622 discard_locals
= LOCALS_ALL
;
3625 discard_locals
= LOCALS_START_L
;
3631 show_version
= TRUE
;
3633 case OPTION_FORMATS_INFO
:
3634 formats_info
= TRUE
;
3636 case OPTION_ONLY_KEEP_DEBUG
:
3637 strip_symbols
= STRIP_NONDEBUG
;
3639 case OPTION_KEEP_FILE_SYMBOLS
:
3640 keep_file_symbols
= 1;
3643 /* We've been given a long option. */
3650 strip_usage (stdout
, 0);
3652 strip_usage (stderr
, 1);
3663 print_version ("strip");
3665 default_deterministic ();
3667 /* Default is to strip all symbols. */
3668 if (strip_symbols
== STRIP_UNDEF
3669 && discard_locals
== LOCALS_UNDEF
3670 && htab_elements (strip_specific_htab
) == 0)
3671 strip_symbols
= STRIP_ALL
;
3673 if (output_target
== NULL
)
3674 output_target
= input_target
;
3678 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3679 strip_usage (stderr
, 1);
3681 for (; i
< argc
; i
++)
3683 int hold_status
= status
;
3684 struct stat statbuf
;
3687 if (get_file_size (argv
[i
]) < 1)
3694 /* No need to check the return value of stat().
3695 It has already been checked in get_file_size(). */
3696 stat (argv
[i
], &statbuf
);
3698 if (output_file
== NULL
3699 || filename_cmp (argv
[i
], output_file
) == 0)
3700 tmpname
= make_tempname (argv
[i
]);
3702 tmpname
= output_file
;
3704 if (tmpname
== NULL
)
3706 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3707 _("could not create temporary file to hold stripped copy"));
3713 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3717 set_times (tmpname
, &statbuf
);
3718 if (output_file
!= tmpname
)
3719 status
= (smart_rename (tmpname
,
3720 output_file
? output_file
: argv
[i
],
3721 preserve_dates
) != 0);
3723 status
= hold_status
;
3726 unlink_if_ordinary (tmpname
);
3727 if (output_file
!= tmpname
)
3734 /* Set up PE subsystem. */
3737 set_pe_subsystem (const char *s
)
3739 const char *version
, *subsystem
;
3749 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3750 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3751 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3752 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3753 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3754 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3755 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3756 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3757 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3758 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3764 /* Check for the presence of a version number. */
3765 version
= strchr (s
, ':');
3766 if (version
== NULL
)
3770 int len
= version
- s
;
3774 version
= copy
+ 1 + len
;
3775 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3777 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3779 non_fatal (_("%s: bad version in PE subsystem"), s
);
3782 /* Check for numeric subsystem. */
3783 value
= (short) strtol (subsystem
, ©
, 0);
3786 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3787 if (v
[i
].value
== value
)
3789 pe_subsystem
= value
;
3790 set_def
= v
[i
].set_def
;
3796 /* Search for subsystem by name. */
3797 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3798 if (strcmp (subsystem
, v
[i
].name
) == 0)
3800 pe_subsystem
= v
[i
].value
;
3801 set_def
= v
[i
].set_def
;
3809 fatal (_("unknown PE subsystem: %s"), s
);
3814 if (pe_file_alignment
== (bfd_vma
) -1)
3815 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3816 if (pe_section_alignment
== (bfd_vma
) -1)
3817 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3821 free ((char *) subsystem
);
3824 /* Convert EFI target to PEI target. */
3827 convert_efi_target (char *efi
)
3833 if (strcmp (efi
+ 4, "ia32") == 0)
3835 /* Change ia32 to i386. */
3840 else if (strcmp (efi
+ 4, "x86_64") == 0)
3842 /* Change x86_64 to x86-64. */
3847 /* Allocate and return a pointer to a struct section_add, initializing the
3848 structure using ARG, a string in the format "sectionname=filename".
3849 The returned structure will have its next pointer set to NEXT. The
3850 OPTION field is the name of the command line option currently being
3851 parsed, and is only used if an error needs to be reported. */
3853 static struct section_add
*
3854 init_section_add (const char *arg
,
3855 struct section_add
*next
,
3858 struct section_add
*pa
;
3861 s
= strchr (arg
, '=');
3863 fatal (_("bad format for %s"), option
);
3865 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3866 pa
->name
= xstrndup (arg
, s
- arg
);
3867 pa
->filename
= s
+ 1;
3869 pa
->contents
= NULL
;
3875 /* Load the file specified in PA, allocating memory to hold the file
3876 contents, and store a pointer to the allocated memory in the contents
3877 field of PA. The size field of PA is also updated. All errors call
3881 section_add_load_file (struct section_add
*pa
)
3886 /* We don't use get_file_size so that we can do
3887 --add-section .note.GNU_stack=/dev/null
3888 get_file_size doesn't work on /dev/null. */
3890 f
= fopen (pa
->filename
, FOPEN_RB
);
3892 fatal (_("cannot open: %s: %s"),
3893 pa
->filename
, strerror (errno
));
3897 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3905 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3908 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3910 fatal (_("%s: fread failed"), pa
->filename
);
3921 copy_main (int argc
, char *argv
[])
3923 char *input_filename
= NULL
;
3924 char *output_filename
= NULL
;
3926 char *input_target
= NULL
;
3927 char *output_target
= NULL
;
3928 bfd_boolean show_version
= FALSE
;
3929 bfd_boolean change_warn
= TRUE
;
3930 bfd_boolean formats_info
= FALSE
;
3932 struct stat statbuf
;
3933 const bfd_arch_info_type
*input_arch
= NULL
;
3935 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3936 copy_options
, (int *) 0)) != EOF
)
3941 copy_byte
= atoi (optarg
);
3943 fatal (_("byte number must be non-negative"));
3947 input_arch
= bfd_scan_arch (optarg
);
3948 if (input_arch
== NULL
)
3949 fatal (_("architecture %s unknown"), optarg
);
3955 interleave
= atoi (optarg
);
3957 fatal (_("interleave must be positive"));
3963 case OPTION_INTERLEAVE_WIDTH
:
3964 copy_width
= atoi (optarg
);
3966 fatal(_("interleave width must be positive"));
3970 case 's': /* "source" - 'I' is preferred */
3971 input_target
= optarg
;
3975 case 'd': /* "destination" - 'O' is preferred */
3976 output_target
= optarg
;
3980 input_target
= output_target
= optarg
;
3984 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
3985 sections_copied
= TRUE
;
3989 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3990 sections_removed
= TRUE
;
3994 strip_symbols
= STRIP_ALL
;
3998 strip_symbols
= STRIP_DEBUG
;
4001 case OPTION_STRIP_DWO
:
4002 strip_symbols
= STRIP_DWO
;
4005 case OPTION_STRIP_UNNEEDED
:
4006 strip_symbols
= STRIP_UNNEEDED
;
4009 case OPTION_ONLY_KEEP_DEBUG
:
4010 strip_symbols
= STRIP_NONDEBUG
;
4013 case OPTION_KEEP_FILE_SYMBOLS
:
4014 keep_file_symbols
= 1;
4017 case OPTION_ADD_GNU_DEBUGLINK
:
4018 long_section_names
= ENABLE
;
4019 gnu_debuglink_filename
= optarg
;
4023 add_specific_symbol (optarg
, keep_specific_htab
);
4027 add_specific_symbol (optarg
, strip_specific_htab
);
4030 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4031 add_specific_symbol (optarg
, strip_unneeded_htab
);
4035 add_specific_symbol (optarg
, localize_specific_htab
);
4038 case OPTION_GLOBALIZE_SYMBOL
:
4039 add_specific_symbol (optarg
, globalize_specific_htab
);
4043 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4047 add_specific_symbol (optarg
, weaken_specific_htab
);
4051 preserve_dates
= TRUE
;
4055 deterministic
= TRUE
;
4059 deterministic
= FALSE
;
4067 discard_locals
= LOCALS_ALL
;
4071 discard_locals
= LOCALS_START_L
;
4079 show_version
= TRUE
;
4082 case OPTION_FORMATS_INFO
:
4083 formats_info
= TRUE
;
4090 case OPTION_ADD_SECTION
:
4091 add_sections
= init_section_add (optarg
, add_sections
,
4093 section_add_load_file (add_sections
);
4096 case OPTION_UPDATE_SECTION
:
4097 update_sections
= init_section_add (optarg
, update_sections
,
4098 "--update-section");
4099 section_add_load_file (update_sections
);
4102 case OPTION_DUMP_SECTION
:
4103 dump_sections
= init_section_add (optarg
, dump_sections
,
4107 case OPTION_ADD_SYMBOL
:
4110 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4112 newsym
->next
= NULL
;
4113 s
= strchr (optarg
, '=');
4115 fatal (_("bad format for %s"), "--add-symbol");
4116 t
= strchr (s
+ 1, ':');
4118 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4121 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4122 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4126 newsym
->section
= NULL
;
4127 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4131 t
= strchr (t
+ 1, ',');
4132 newsym
->othersym
= NULL
;
4134 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4136 newsym
->flags
= BSF_GLOBAL
;
4138 /* Keep 'othersym' symbols at the front of the list. */
4139 if (newsym
->othersym
)
4141 newsym
->next
= add_sym_list
;
4143 add_sym_tail
= &newsym
->next
;
4144 add_sym_list
= newsym
;
4148 *add_sym_tail
= newsym
;
4149 add_sym_tail
= &newsym
->next
;
4155 case OPTION_CHANGE_START
:
4156 change_start
= parse_vma (optarg
, "--change-start");
4159 case OPTION_CHANGE_SECTION_ADDRESS
:
4160 case OPTION_CHANGE_SECTION_LMA
:
4161 case OPTION_CHANGE_SECTION_VMA
:
4163 struct section_list
* p
;
4164 unsigned int context
= 0;
4168 char *option
= NULL
;
4173 case OPTION_CHANGE_SECTION_ADDRESS
:
4174 option
= "--change-section-address";
4175 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4177 case OPTION_CHANGE_SECTION_LMA
:
4178 option
= "--change-section-lma";
4179 context
= SECTION_CONTEXT_ALTER_LMA
;
4181 case OPTION_CHANGE_SECTION_VMA
:
4182 option
= "--change-section-vma";
4183 context
= SECTION_CONTEXT_ALTER_VMA
;
4187 s
= strchr (optarg
, '=');
4190 s
= strchr (optarg
, '+');
4193 s
= strchr (optarg
, '-');
4195 fatal (_("bad format for %s"), option
);
4200 /* Correct the context. */
4203 case OPTION_CHANGE_SECTION_ADDRESS
:
4204 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4206 case OPTION_CHANGE_SECTION_LMA
:
4207 context
= SECTION_CONTEXT_SET_LMA
;
4209 case OPTION_CHANGE_SECTION_VMA
:
4210 context
= SECTION_CONTEXT_SET_VMA
;
4216 name
= (char *) xmalloc (len
+ 1);
4217 strncpy (name
, optarg
, len
);
4220 p
= find_section_list (name
, TRUE
, context
);
4222 val
= parse_vma (s
+ 1, option
);
4228 case OPTION_CHANGE_SECTION_ADDRESS
:
4232 case OPTION_CHANGE_SECTION_LMA
:
4236 case OPTION_CHANGE_SECTION_VMA
:
4243 case OPTION_CHANGE_ADDRESSES
:
4244 change_section_address
= parse_vma (optarg
, "--change-addresses");
4245 change_start
= change_section_address
;
4248 case OPTION_CHANGE_WARNINGS
:
4252 case OPTION_CHANGE_LEADING_CHAR
:
4253 change_leading_char
= TRUE
;
4256 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4259 if (strcasecmp (optarg
, "none") == 0)
4260 do_debug_sections
= decompress
;
4261 else if (strcasecmp (optarg
, "zlib") == 0)
4262 do_debug_sections
= compress_zlib
;
4263 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4264 do_debug_sections
= compress_gnu_zlib
;
4265 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4266 do_debug_sections
= compress_gabi_zlib
;
4268 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4272 do_debug_sections
= compress
;
4275 case OPTION_DEBUGGING
:
4276 convert_debugging
= TRUE
;
4279 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4280 do_debug_sections
= decompress
;
4283 case OPTION_ELF_STT_COMMON
:
4284 if (strcasecmp (optarg
, "yes") == 0)
4285 do_elf_stt_common
= elf_stt_common
;
4286 else if (strcasecmp (optarg
, "no") == 0)
4287 do_elf_stt_common
= no_elf_stt_common
;
4289 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4293 case OPTION_GAP_FILL
:
4295 bfd_vma gap_fill_vma
;
4297 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4298 gap_fill
= (bfd_byte
) gap_fill_vma
;
4299 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4303 sprintf_vma (buff
, gap_fill_vma
);
4305 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4308 gap_fill_set
= TRUE
;
4312 case OPTION_NO_CHANGE_WARNINGS
:
4313 change_warn
= FALSE
;
4317 pad_to
= parse_vma (optarg
, "--pad-to");
4321 case OPTION_REMOVE_LEADING_CHAR
:
4322 remove_leading_char
= TRUE
;
4325 case OPTION_REDEFINE_SYM
:
4327 /* Push this redefinition onto redefine_symbol_list. */
4331 const char *nextarg
;
4332 char *source
, *target
;
4334 s
= strchr (optarg
, '=');
4336 fatal (_("bad format for %s"), "--redefine-sym");
4339 source
= (char *) xmalloc (len
+ 1);
4340 strncpy (source
, optarg
, len
);
4344 len
= strlen (nextarg
);
4345 target
= (char *) xmalloc (len
+ 1);
4346 strcpy (target
, nextarg
);
4348 redefine_list_append ("--redefine-sym", source
, target
);
4355 case OPTION_REDEFINE_SYMS
:
4356 add_redefine_syms_file (optarg
);
4359 case OPTION_SET_SECTION_FLAGS
:
4361 struct section_list
*p
;
4366 s
= strchr (optarg
, '=');
4368 fatal (_("bad format for %s"), "--set-section-flags");
4371 name
= (char *) xmalloc (len
+ 1);
4372 strncpy (name
, optarg
, len
);
4375 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4377 p
->flags
= parse_flags (s
+ 1);
4381 case OPTION_RENAME_SECTION
:
4384 const char *eq
, *fl
;
4389 eq
= strchr (optarg
, '=');
4391 fatal (_("bad format for %s"), "--rename-section");
4395 fatal (_("bad format for %s"), "--rename-section");
4397 old_name
= (char *) xmalloc (len
+ 1);
4398 strncpy (old_name
, optarg
, len
);
4402 fl
= strchr (eq
, ',');
4405 flags
= parse_flags (fl
+ 1);
4415 fatal (_("bad format for %s"), "--rename-section");
4417 new_name
= (char *) xmalloc (len
+ 1);
4418 strncpy (new_name
, eq
, len
);
4421 add_section_rename (old_name
, new_name
, flags
);
4425 case OPTION_SET_START
:
4426 set_start
= parse_vma (optarg
, "--set-start");
4427 set_start_set
= TRUE
;
4430 case OPTION_SREC_LEN
:
4431 Chunk
= parse_vma (optarg
, "--srec-len");
4434 case OPTION_SREC_FORCES3
:
4438 case OPTION_STRIP_SYMBOLS
:
4439 add_specific_symbols (optarg
, strip_specific_htab
);
4442 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4443 add_specific_symbols (optarg
, strip_unneeded_htab
);
4446 case OPTION_KEEP_SYMBOLS
:
4447 add_specific_symbols (optarg
, keep_specific_htab
);
4450 case OPTION_LOCALIZE_HIDDEN
:
4451 localize_hidden
= TRUE
;
4454 case OPTION_LOCALIZE_SYMBOLS
:
4455 add_specific_symbols (optarg
, localize_specific_htab
);
4458 case OPTION_LONG_SECTION_NAMES
:
4459 if (!strcmp ("enable", optarg
))
4460 long_section_names
= ENABLE
;
4461 else if (!strcmp ("disable", optarg
))
4462 long_section_names
= DISABLE
;
4463 else if (!strcmp ("keep", optarg
))
4464 long_section_names
= KEEP
;
4466 fatal (_("unknown long section names option '%s'"), optarg
);
4469 case OPTION_GLOBALIZE_SYMBOLS
:
4470 add_specific_symbols (optarg
, globalize_specific_htab
);
4473 case OPTION_KEEPGLOBAL_SYMBOLS
:
4474 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4477 case OPTION_WEAKEN_SYMBOLS
:
4478 add_specific_symbols (optarg
, weaken_specific_htab
);
4481 case OPTION_ALT_MACH_CODE
:
4482 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4483 if (use_alt_mach_code
== 0)
4484 fatal (_("unable to parse alternative machine code"));
4487 case OPTION_PREFIX_SYMBOLS
:
4488 prefix_symbols_string
= optarg
;
4491 case OPTION_PREFIX_SECTIONS
:
4492 prefix_sections_string
= optarg
;
4495 case OPTION_PREFIX_ALLOC_SECTIONS
:
4496 prefix_alloc_sections_string
= optarg
;
4499 case OPTION_READONLY_TEXT
:
4500 bfd_flags_to_set
|= WP_TEXT
;
4501 bfd_flags_to_clear
&= ~WP_TEXT
;
4504 case OPTION_WRITABLE_TEXT
:
4505 bfd_flags_to_clear
|= WP_TEXT
;
4506 bfd_flags_to_set
&= ~WP_TEXT
;
4510 bfd_flags_to_set
|= D_PAGED
;
4511 bfd_flags_to_clear
&= ~D_PAGED
;
4515 bfd_flags_to_clear
|= D_PAGED
;
4516 bfd_flags_to_set
&= ~D_PAGED
;
4519 case OPTION_EXTRACT_DWO
:
4520 strip_symbols
= STRIP_NONDWO
;
4523 case OPTION_EXTRACT_SYMBOL
:
4524 extract_symbol
= TRUE
;
4527 case OPTION_REVERSE_BYTES
:
4529 int prev
= reverse_bytes
;
4531 reverse_bytes
= atoi (optarg
);
4532 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4533 fatal (_("number of bytes to reverse must be positive and even"));
4535 if (prev
&& prev
!= reverse_bytes
)
4536 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4541 case OPTION_FILE_ALIGNMENT
:
4542 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4548 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4550 || (*end
!= '.' && *end
!= '\0'))
4551 non_fatal (_("%s: invalid reserve value for --heap"),
4553 else if (*end
!= '\0')
4555 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4557 non_fatal (_("%s: invalid commit value for --heap"),
4563 case OPTION_IMAGE_BASE
:
4564 pe_image_base
= parse_vma (optarg
, "--image-base");
4567 case OPTION_SECTION_ALIGNMENT
:
4568 pe_section_alignment
= parse_vma (optarg
,
4569 "--section-alignment");
4572 case OPTION_SUBSYSTEM
:
4573 set_pe_subsystem (optarg
);
4579 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4581 || (*end
!= '.' && *end
!= '\0'))
4582 non_fatal (_("%s: invalid reserve value for --stack"),
4584 else if (*end
!= '\0')
4586 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4588 non_fatal (_("%s: invalid commit value for --stack"),
4595 /* We've been given a long option. */
4600 copy_usage (stdout
, 0);
4603 copy_usage (stderr
, 1);
4614 print_version ("objcopy");
4616 if (interleave
&& copy_byte
== -1)
4617 fatal (_("interleave start byte must be set with --byte"));
4619 if (copy_byte
>= interleave
)
4620 fatal (_("byte number must be less than interleave"));
4622 if (copy_width
> interleave
- copy_byte
)
4623 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4625 if (optind
== argc
|| optind
+ 2 < argc
)
4626 copy_usage (stderr
, 1);
4628 input_filename
= argv
[optind
];
4629 if (optind
+ 1 < argc
)
4630 output_filename
= argv
[optind
+ 1];
4632 default_deterministic ();
4634 /* Default is to strip no symbols. */
4635 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4636 strip_symbols
= STRIP_NONE
;
4638 if (output_target
== NULL
)
4639 output_target
= input_target
;
4641 /* Convert input EFI target to PEI target. */
4642 if (input_target
!= NULL
4643 && strncmp (input_target
, "efi-", 4) == 0)
4647 efi
= xstrdup (output_target
+ 4);
4648 if (strncmp (efi
, "bsdrv-", 6) == 0
4649 || strncmp (efi
, "rtdrv-", 6) == 0)
4651 else if (strncmp (efi
, "app-", 4) != 0)
4652 fatal (_("unknown input EFI target: %s"), input_target
);
4655 convert_efi_target (efi
);
4658 /* Convert output EFI target to PEI target. */
4659 if (output_target
!= NULL
4660 && strncmp (output_target
, "efi-", 4) == 0)
4664 efi
= xstrdup (output_target
+ 4);
4665 if (strncmp (efi
, "app-", 4) == 0)
4667 if (pe_subsystem
== -1)
4668 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4670 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4672 if (pe_subsystem
== -1)
4673 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4676 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4678 if (pe_subsystem
== -1)
4679 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4683 fatal (_("unknown output EFI target: %s"), output_target
);
4685 if (pe_file_alignment
== (bfd_vma
) -1)
4686 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4687 if (pe_section_alignment
== (bfd_vma
) -1)
4688 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4690 output_target
= efi
;
4691 convert_efi_target (efi
);
4695 if (stat (input_filename
, & statbuf
) < 0)
4696 fatal (_("warning: could not locate '%s'. System error message: %s"),
4697 input_filename
, strerror (errno
));
4699 /* If there is no destination file, or the source and destination files
4700 are the same, then create a temp and rename the result into the input. */
4701 if (output_filename
== NULL
4702 || filename_cmp (input_filename
, output_filename
) == 0)
4703 tmpname
= make_tempname (input_filename
);
4705 tmpname
= output_filename
;
4707 if (tmpname
== NULL
)
4708 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4709 input_filename
, strerror (errno
));
4711 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4715 set_times (tmpname
, &statbuf
);
4716 if (tmpname
!= output_filename
)
4717 status
= (smart_rename (tmpname
, input_filename
,
4718 preserve_dates
) != 0);
4721 unlink_if_ordinary (tmpname
);
4725 struct section_list
*p
;
4727 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4731 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4735 sprintf_vma (buff
, p
->vma_val
);
4737 /* xgettext:c-format */
4738 non_fatal (_("%s %s%c0x%s never used"),
4739 "--change-section-vma",
4741 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4745 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4749 sprintf_vma (buff
, p
->lma_val
);
4751 /* xgettext:c-format */
4752 non_fatal (_("%s %s%c0x%s never used"),
4753 "--change-section-lma",
4755 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4766 main (int argc
, char *argv
[])
4768 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4769 setlocale (LC_MESSAGES
, "");
4771 #if defined (HAVE_SETLOCALE)
4772 setlocale (LC_CTYPE
, "");
4774 bindtextdomain (PACKAGE
, LOCALEDIR
);
4775 textdomain (PACKAGE
);
4777 program_name
= argv
[0];
4778 xmalloc_set_program_name (program_name
);
4780 START_PROGRESS (program_name
, 0);
4782 expandargv (&argc
, &argv
);
4784 strip_symbols
= STRIP_UNDEF
;
4785 discard_locals
= LOCALS_UNDEF
;
4788 set_default_bfd_target ();
4792 int i
= strlen (program_name
);
4793 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4794 /* Drop the .exe suffix, if any. */
4795 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4798 program_name
[i
] = '\0';
4801 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4804 create_symbol_htabs ();
4807 bfd_set_error_program_name (argv
[0]);
4810 strip_main (argc
, argv
);
4812 copy_main (argc
, argv
);
4814 END_PROGRESS (program_name
);