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 == (int) sizeof fname - 1 && strncasecmp (fname, s, len) == 0) \
779 #define PARSE_OTHER(fname,fval) \
780 else if (len >= (int) sizeof fname && strncasecmp (fname, s, sizeof fname - 1) == 0) \
781 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
784 PARSE_FLAG ("local", BSF_LOCAL
);
785 PARSE_FLAG ("global", BSF_GLOBAL
);
786 PARSE_FLAG ("export", BSF_EXPORT
);
787 PARSE_FLAG ("debug", BSF_DEBUGGING
);
788 PARSE_FLAG ("function", BSF_FUNCTION
);
789 PARSE_FLAG ("weak", BSF_WEAK
);
790 PARSE_FLAG ("section", BSF_SECTION_SYM
);
791 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
792 PARSE_FLAG ("warning", BSF_WARNING
);
793 PARSE_FLAG ("indirect", BSF_INDIRECT
);
794 PARSE_FLAG ("file", BSF_FILE
);
795 PARSE_FLAG ("object", BSF_OBJECT
);
796 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
797 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
798 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
799 PARSE_OTHER ("before=", *other
);
807 copy
= (char *) xmalloc (len
+ 1);
808 strncpy (copy
, s
, len
);
810 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
811 fatal (_("supported flags: %s"),
812 "local, global, export, debug, function, weak, section, "
813 "constructor, warning, indirect, file, object, synthetic, "
814 "indirect-function, unique-object, before=<othersym>");
824 /* Find and optionally add an entry in the change_sections list.
826 We need to be careful in how we match section names because of the support
827 for wildcard characters. For example suppose that the user has invoked
830 --set-section-flags .debug_*=debug
831 --set-section-flags .debug_str=readonly,debug
832 --change-section-address .debug_*ranges=0x1000
834 With the idea that all debug sections will receive the DEBUG flag, the
835 .debug_str section will also receive the READONLY flag and the
836 .debug_ranges and .debug_aranges sections will have their address set to
837 0x1000. (This may not make much sense, but it is just an example).
839 When adding the section name patterns to the section list we need to make
840 sure that previous entries do not match with the new entry, unless the
841 match is exact. (In which case we assume that the user is overriding
842 the previous entry with the new context).
844 When matching real section names to the section list we make use of the
845 wildcard characters, but we must do so in context. Eg if we are setting
846 section addresses then we match for .debug_ranges but not for .debug_info.
848 Finally, if ADD is false and we do find a match, we mark the section list
851 static struct section_list
*
852 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
854 struct section_list
*p
;
856 /* assert ((context & ((1 << 7) - 1)) != 0); */
858 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
862 if (strcmp (p
->pattern
, name
) == 0)
864 /* Check for context conflicts. */
865 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
866 && (context
& SECTION_CONTEXT_COPY
))
867 || ((context
& SECTION_CONTEXT_REMOVE
)
868 && (p
->context
& SECTION_CONTEXT_COPY
)))
869 fatal (_("error: %s both copied and removed"), name
);
871 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
872 && (context
& SECTION_CONTEXT_ALTER_VMA
))
873 || ((context
& SECTION_CONTEXT_SET_VMA
)
874 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
875 fatal (_("error: %s both sets and alters VMA"), name
);
877 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
878 && (context
& SECTION_CONTEXT_ALTER_LMA
))
879 || ((context
& SECTION_CONTEXT_SET_LMA
)
880 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
881 fatal (_("error: %s both sets and alters LMA"), name
);
883 /* Extend the context. */
884 p
->context
|= context
;
888 /* If we are not adding a new name/pattern then
889 only check for a match if the context applies. */
890 else if ((p
->context
& context
)
891 /* We could check for the presence of wildchar characters
892 first and choose between calling strcmp and fnmatch,
893 but is that really worth it ? */
894 && fnmatch (p
->pattern
, name
, 0) == 0)
904 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
907 p
->context
= context
;
911 p
->next
= change_sections
;
917 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
920 eq_string (const void *s1
, const void *s2
)
922 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
926 create_symbol_htab (void)
928 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
932 create_symbol_htabs (void)
934 strip_specific_htab
= create_symbol_htab ();
935 strip_unneeded_htab
= create_symbol_htab ();
936 keep_specific_htab
= create_symbol_htab ();
937 localize_specific_htab
= create_symbol_htab ();
938 globalize_specific_htab
= create_symbol_htab ();
939 keepglobal_specific_htab
= create_symbol_htab ();
940 weaken_specific_htab
= create_symbol_htab ();
943 /* Add a symbol to strip_specific_list. */
946 add_specific_symbol (const char *name
, htab_t htab
)
948 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
951 /* Add symbols listed in `filename' to strip_specific_list. */
953 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
954 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
957 add_specific_symbols (const char *filename
, htab_t htab
)
963 unsigned int line_count
;
965 size
= get_file_size (filename
);
972 buffer
= (char *) xmalloc (size
+ 2);
973 f
= fopen (filename
, FOPEN_RT
);
975 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
977 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
978 fatal (_("%s: fread failed"), filename
);
981 buffer
[size
] = '\n';
982 buffer
[size
+ 1] = '\0';
986 for (line
= buffer
; * line
!= '\0'; line
++)
991 int finished
= FALSE
;
993 for (eol
= line
;; eol
++)
999 /* Cope with \n\r. */
1007 /* Cope with \r\n. */
1018 /* Line comment, Terminate the line here, in case a
1019 name is present and then allow the rest of the
1020 loop to find the real end of the line. */
1032 /* A name may now exist somewhere between 'line' and 'eol'.
1033 Strip off leading whitespace and trailing whitespace,
1034 then add it to the list. */
1035 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1037 for (name_end
= name
;
1038 (! IS_WHITESPACE (* name_end
))
1039 && (! IS_LINE_TERMINATOR (* name_end
));
1043 if (! IS_LINE_TERMINATOR (* name_end
))
1047 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1050 if (! IS_LINE_TERMINATOR (* extra
))
1051 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1052 filename
, line_count
);
1057 if (name_end
> name
)
1058 add_specific_symbol (name
, htab
);
1060 /* Advance line pointer to end of line. The 'eol ++' in the for
1061 loop above will then advance us to the start of the next line. */
1067 /* See whether a symbol should be stripped or kept
1068 based on strip_specific_list and keep_symbols. */
1071 is_specified_symbol_predicate (void **slot
, void *data
)
1073 struct is_specified_symbol_predicate_data
*d
=
1074 (struct is_specified_symbol_predicate_data
*) data
;
1075 const char *slot_name
= (char *) *slot
;
1077 if (*slot_name
!= '!')
1079 if (! fnmatch (slot_name
, d
->name
, 0))
1082 /* Continue traversal, there might be a non-match rule. */
1088 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1091 /* Stop traversal. */
1096 /* Continue traversal. */
1101 is_specified_symbol (const char *name
, htab_t htab
)
1105 struct is_specified_symbol_predicate_data data
;
1110 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1115 return htab_find (htab
, name
) != NULL
;
1118 /* Return a pointer to the symbol used as a signature for GROUP. */
1121 group_signature (asection
*group
)
1123 bfd
*abfd
= group
->owner
;
1124 Elf_Internal_Shdr
*ghdr
;
1126 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1129 ghdr
= &elf_section_data (group
)->this_hdr
;
1130 if (ghdr
->sh_link
< elf_numsections (abfd
))
1132 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1133 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1135 if (symhdr
->sh_type
== SHT_SYMTAB
1136 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1137 return isympp
[ghdr
->sh_info
- 1];
1142 /* Return TRUE if the section is a DWO section. */
1145 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1147 const char *name
= bfd_get_section_name (abfd
, sec
);
1148 int len
= strlen (name
);
1150 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1153 /* Return TRUE if section SEC is in the update list. */
1156 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1158 if (update_sections
!= NULL
)
1160 struct section_add
*pupdate
;
1162 for (pupdate
= update_sections
;
1164 pupdate
= pupdate
->next
)
1166 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1174 /* See if a non-group section is being removed. */
1177 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1179 if (sections_removed
|| sections_copied
)
1181 struct section_list
*p
;
1182 struct section_list
*q
;
1184 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1185 SECTION_CONTEXT_REMOVE
);
1186 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1187 SECTION_CONTEXT_COPY
);
1190 fatal (_("error: section %s matches both remove and copy options"),
1191 bfd_get_section_name (abfd
, sec
));
1192 if (p
&& is_update_section (abfd
, sec
))
1193 fatal (_("error: section %s matches both update and remove options"),
1194 bfd_get_section_name (abfd
, sec
));
1198 if (sections_copied
&& q
== NULL
)
1202 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1204 if (strip_symbols
== STRIP_DEBUG
1205 || strip_symbols
== STRIP_UNNEEDED
1206 || strip_symbols
== STRIP_ALL
1207 || discard_locals
== LOCALS_ALL
1208 || convert_debugging
)
1210 /* By default we don't want to strip .reloc section.
1211 This section has for pe-coff special meaning. See
1212 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1213 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1217 if (strip_symbols
== STRIP_DWO
)
1218 return is_dwo_section (abfd
, sec
);
1220 if (strip_symbols
== STRIP_NONDEBUG
)
1224 if (strip_symbols
== STRIP_NONDWO
)
1225 return !is_dwo_section (abfd
, sec
);
1230 /* See if a section is being removed. */
1233 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1235 if (is_strip_section_1 (abfd
, sec
))
1238 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1242 asection
*elt
, *first
;
1245 If we are going to strip the group signature symbol, then
1246 strip the group section too. */
1247 gsym
= group_signature (sec
);
1252 if ((strip_symbols
== STRIP_ALL
1253 && !is_specified_symbol (gname
, keep_specific_htab
))
1254 || is_specified_symbol (gname
, strip_specific_htab
))
1257 /* Remove the group section if all members are removed. */
1258 first
= elt
= elf_next_in_group (sec
);
1261 if (!is_strip_section_1 (abfd
, elt
))
1263 elt
= elf_next_in_group (elt
);
1275 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1277 /* Always keep ELF note sections. */
1278 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1279 return (elf_section_type (isection
) == SHT_NOTE
);
1281 /* Always keep the .buildid section for PE/COFF.
1283 Strictly, this should be written "always keep the section storing the debug
1284 directory", but that may be the .text section for objects produced by some
1285 tools, which it is not sensible to keep. */
1286 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1287 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1292 /* Return true if SYM is a hidden symbol. */
1295 is_hidden_symbol (asymbol
*sym
)
1297 elf_symbol_type
*elf_sym
;
1299 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1300 if (elf_sym
!= NULL
)
1301 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1311 need_sym_before (struct addsym_node
**node
, const char *sym
)
1314 struct addsym_node
*ptr
= add_sym_list
;
1316 /* 'othersym' symbols are at the front of the list. */
1317 for (count
= 0; count
< add_symbols
; count
++)
1321 else if (strcmp (ptr
->othersym
, sym
) == 0)
1323 free (ptr
->othersym
);
1324 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1334 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1336 asymbol
*sym
= bfd_make_empty_symbol(obfd
);
1338 bfd_asymbol_name(sym
) = ptr
->symdef
;
1339 sym
->value
= ptr
->symval
;
1340 sym
->flags
= ptr
->flags
;
1343 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1345 fatal (_("Section %s not found"), ptr
->section
);
1349 sym
->section
= bfd_abs_section_ptr
;
1353 /* Choose which symbol entries to copy; put the result in OSYMS.
1354 We don't copy in place, because that confuses the relocs.
1355 Return the number of symbols to print. */
1358 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1359 asymbol
**isyms
, long symcount
)
1361 asymbol
**from
= isyms
, **to
= osyms
;
1362 long src_count
= 0, dst_count
= 0;
1363 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1365 for (; src_count
< symcount
; src_count
++)
1367 asymbol
*sym
= from
[src_count
];
1368 flagword flags
= sym
->flags
;
1369 char *name
= (char *) bfd_asymbol_name (sym
);
1371 bfd_boolean used_in_reloc
= FALSE
;
1372 bfd_boolean undefined
;
1373 bfd_boolean rem_leading_char
;
1374 bfd_boolean add_leading_char
;
1376 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1380 struct addsym_node
*ptr
;
1382 if (need_sym_before (&ptr
, name
))
1383 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1386 if (redefine_sym_list
)
1388 char *old_name
, *new_name
;
1390 old_name
= (char *) bfd_asymbol_name (sym
);
1391 new_name
= (char *) lookup_sym_redefinition (old_name
);
1392 bfd_asymbol_name (sym
) = new_name
;
1396 /* Check if we will remove the current leading character. */
1398 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1399 && (change_leading_char
1400 || (remove_leading_char
1401 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1403 || bfd_is_com_section (bfd_get_section (sym
)))));
1405 /* Check if we will add a new leading character. */
1408 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1409 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1410 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1412 /* Short circuit for change_leading_char if we can do it in-place. */
1413 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1415 name
[0] = bfd_get_symbol_leading_char (obfd
);
1416 bfd_asymbol_name (sym
) = name
;
1417 rem_leading_char
= FALSE
;
1418 add_leading_char
= FALSE
;
1421 /* Remove leading char. */
1422 if (rem_leading_char
)
1423 bfd_asymbol_name (sym
) = ++name
;
1425 /* Add new leading char and/or prefix. */
1426 if (add_leading_char
|| prefix_symbols_string
)
1430 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1431 + strlen (name
) + 1);
1432 if (add_leading_char
)
1433 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1435 if (prefix_symbols_string
)
1437 strcpy (ptr
, prefix_symbols_string
);
1438 ptr
+= strlen (prefix_symbols_string
);
1442 bfd_asymbol_name (sym
) = n
;
1446 if (strip_symbols
== STRIP_ALL
)
1448 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1449 || ((flags
& BSF_SECTION_SYM
) != 0
1450 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1454 used_in_reloc
= TRUE
;
1456 else if (relocatable
/* Relocatable file. */
1457 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1458 || bfd_is_com_section (bfd_get_section (sym
))))
1460 else if (bfd_decode_symclass (sym
) == 'I')
1461 /* Global symbols in $idata sections need to be retained
1462 even if relocatable is FALSE. External users of the
1463 library containing the $idata section may reference these
1466 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1467 || (flags
& BSF_WEAK
) != 0
1469 || bfd_is_com_section (bfd_get_section (sym
)))
1470 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1471 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1472 keep
= (strip_symbols
!= STRIP_DEBUG
1473 && strip_symbols
!= STRIP_UNNEEDED
1474 && ! convert_debugging
);
1475 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1476 /* COMDAT sections store special information in local
1477 symbols, so we cannot risk stripping any of them. */
1479 else /* Local symbol. */
1480 keep
= (strip_symbols
!= STRIP_UNNEEDED
1481 && (discard_locals
!= LOCALS_ALL
1482 && (discard_locals
!= LOCALS_START_L
1483 || ! bfd_is_local_label (abfd
, sym
))));
1485 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1487 /* There are multiple ways to set 'keep' above, but if it
1488 was the relocatable symbol case, then that's an error. */
1491 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1499 && !(flags
& BSF_KEEP
)
1500 && is_specified_symbol (name
, strip_unneeded_htab
))
1504 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1505 || is_specified_symbol (name
, keep_specific_htab
)))
1508 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1513 if ((flags
& BSF_GLOBAL
) != 0
1514 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1516 sym
->flags
&= ~ BSF_GLOBAL
;
1517 sym
->flags
|= BSF_WEAK
;
1521 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1522 && (is_specified_symbol (name
, localize_specific_htab
)
1523 || (htab_elements (keepglobal_specific_htab
) != 0
1524 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1525 || (localize_hidden
&& is_hidden_symbol (sym
))))
1527 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1528 sym
->flags
|= BSF_LOCAL
;
1532 && (flags
& BSF_LOCAL
)
1533 && is_specified_symbol (name
, globalize_specific_htab
))
1535 sym
->flags
&= ~ BSF_LOCAL
;
1536 sym
->flags
|= BSF_GLOBAL
;
1539 to
[dst_count
++] = sym
;
1544 struct addsym_node
*ptr
= add_sym_list
;
1546 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1550 if (strcmp (ptr
->othersym
, ""))
1551 fatal (_("'before=%s' not found"), ptr
->othersym
);
1554 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1560 to
[dst_count
] = NULL
;
1565 /* Find the redefined name of symbol SOURCE. */
1568 lookup_sym_redefinition (const char *source
)
1570 struct redefine_node
*list
;
1572 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1573 if (strcmp (source
, list
->source
) == 0)
1574 return list
->target
;
1579 /* Add a node to a symbol redefine list. */
1582 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1584 struct redefine_node
**p
;
1585 struct redefine_node
*list
;
1586 struct redefine_node
*new_node
;
1588 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1590 if (strcmp (source
, list
->source
) == 0)
1591 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1594 if (strcmp (target
, list
->target
) == 0)
1595 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1599 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1601 new_node
->source
= strdup (source
);
1602 new_node
->target
= strdup (target
);
1603 new_node
->next
= NULL
;
1608 /* Handle the --redefine-syms option. Read lines containing "old new"
1609 from the file, and add them to the symbol redefine list. */
1612 add_redefine_syms_file (const char *filename
)
1621 file
= fopen (filename
, "r");
1623 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1624 filename
, strerror (errno
));
1627 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1635 /* Collect the input symbol name. */
1636 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1644 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1652 /* Eat white space between the symbol names. */
1653 while (IS_WHITESPACE (c
))
1655 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1660 /* Collect the output symbol name. */
1662 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1670 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1678 /* Eat white space at end of line. */
1679 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1684 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1685 || c
== '\n' || c
== EOF
)
1688 /* Append the redefinition to the list. */
1690 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1701 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1703 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1704 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1707 /* Eat the rest of the line and finish it. */
1708 while (c
!= '\n' && c
!= EOF
)
1714 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1719 /* Copy unkown object file IBFD onto OBFD.
1720 Returns TRUE upon success, FALSE otherwise. */
1723 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1731 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1733 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1740 non_fatal (_("stat returns negative size for `%s'"),
1741 bfd_get_archive_filename (ibfd
));
1745 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1747 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1752 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1753 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1755 cbuf
= (char *) xmalloc (BUFSIZE
);
1757 while (ncopied
< size
)
1759 tocopy
= size
- ncopied
;
1760 if (tocopy
> BUFSIZE
)
1763 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1764 != (bfd_size_type
) tocopy
)
1766 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1771 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1772 != (bfd_size_type
) tocopy
)
1774 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1782 /* We should at least to be able to read it back when copying an
1783 unknown object in an archive. */
1784 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1789 /* Copy object file IBFD onto OBFD.
1790 Returns TRUE upon success, FALSE otherwise. */
1793 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1797 asection
**osections
= NULL
;
1798 asection
*gnu_debuglink_section
= NULL
;
1799 bfd_size_type
*gaps
= NULL
;
1800 bfd_size_type max_gap
= 0;
1803 enum bfd_architecture iarch
;
1807 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1808 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1809 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1811 /* PR 17636: Call non-fatal so that we return to our parent who
1812 may need to tidy temporary files. */
1813 non_fatal (_("Unable to change endianness of input file(s)"));
1817 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1819 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1823 if (ibfd
->sections
== NULL
)
1825 non_fatal (_("error: the input file '%s' has no sections"),
1826 bfd_get_archive_filename (ibfd
));
1830 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
1832 if ((do_debug_sections
& compress
) != 0
1833 && do_debug_sections
!= compress
)
1835 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1836 bfd_get_archive_filename (ibfd
));
1840 if (do_elf_stt_common
)
1842 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
1843 bfd_get_archive_filename (ibfd
));
1849 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1850 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1851 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1860 start
= bfd_get_start_address (ibfd
);
1861 start
+= change_start
;
1864 /* Neither the start address nor the flags
1865 need to be set for a core file. */
1866 if (bfd_get_format (obfd
) != bfd_core
)
1870 flags
= bfd_get_file_flags (ibfd
);
1871 flags
|= bfd_flags_to_set
;
1872 flags
&= ~bfd_flags_to_clear
;
1873 flags
&= bfd_applicable_file_flags (obfd
);
1875 if (strip_symbols
== STRIP_ALL
)
1876 flags
&= ~HAS_RELOC
;
1878 if (!bfd_set_start_address (obfd
, start
)
1879 || !bfd_set_file_flags (obfd
, flags
))
1881 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1886 /* Copy architecture of input file to output file. */
1887 iarch
= bfd_get_arch (ibfd
);
1888 imach
= bfd_get_mach (ibfd
);
1891 if (bfd_get_arch_info (ibfd
) == NULL
1892 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1894 iarch
= input_arch
->arch
;
1895 imach
= input_arch
->mach
;
1898 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1899 bfd_get_archive_filename (ibfd
));
1901 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1902 && (ibfd
->target_defaulted
1903 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1905 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1906 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1907 bfd_get_archive_filename (ibfd
));
1909 non_fatal (_("Output file cannot represent architecture `%s'"),
1910 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1911 bfd_get_mach (ibfd
)));
1915 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1917 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1921 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1922 && bfd_pei_p (obfd
))
1924 /* Set up PE parameters. */
1925 pe_data_type
*pe
= pe_data (obfd
);
1927 /* Copy PE parameters before changing them. */
1928 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1929 && bfd_pei_p (ibfd
))
1930 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1932 if (pe_file_alignment
!= (bfd_vma
) -1)
1933 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1935 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1937 if (pe_heap_commit
!= (bfd_vma
) -1)
1938 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1940 if (pe_heap_reserve
!= (bfd_vma
) -1)
1941 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1943 if (pe_image_base
!= (bfd_vma
) -1)
1944 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1946 if (pe_section_alignment
!= (bfd_vma
) -1)
1947 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1949 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1951 if (pe_stack_commit
!= (bfd_vma
) -1)
1952 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1954 if (pe_stack_reserve
!= (bfd_vma
) -1)
1955 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1957 if (pe_subsystem
!= -1)
1958 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1960 if (pe_major_subsystem_version
!= -1)
1961 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1963 if (pe_minor_subsystem_version
!= -1)
1964 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1966 if (pe_file_alignment
> pe_section_alignment
)
1968 char file_alignment
[20], section_alignment
[20];
1970 sprintf_vma (file_alignment
, pe_file_alignment
);
1971 sprintf_vma (section_alignment
, pe_section_alignment
);
1972 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1974 file_alignment
, section_alignment
);
1981 if (osympp
!= isympp
)
1987 symsize
= bfd_get_symtab_upper_bound (ibfd
);
1990 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1994 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
1995 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
1998 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2001 /* PR 17512: file: d6323821
2002 If the symbol table could not be loaded do not pretend that we have
2003 any symbols. This trips us up later on when we load the relocs. */
2007 osympp
= isympp
= NULL
;
2010 /* BFD mandates that all output sections be created and sizes set before
2011 any output is done. Thus, we traverse all sections multiple times. */
2012 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2014 if (!extract_symbol
)
2015 setup_bfd_headers (ibfd
, obfd
);
2017 if (add_sections
!= NULL
)
2019 struct section_add
*padd
;
2020 struct section_list
*pset
;
2022 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2026 pset
= find_section_list (padd
->name
, FALSE
,
2027 SECTION_CONTEXT_SET_FLAGS
);
2029 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2031 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2033 /* bfd_make_section_with_flags() does not return very helpful
2034 error codes, so check for the most likely user error first. */
2035 if (bfd_get_section_by_name (obfd
, padd
->name
))
2037 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2038 _("can't add section '%s'"), padd
->name
);
2043 /* We use LINKER_CREATED here so that the backend hooks
2044 will create any special section type information,
2045 instead of presuming we know what we're doing merely
2046 because we set the flags. */
2047 padd
->section
= bfd_make_section_with_flags
2048 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2049 if (padd
->section
== NULL
)
2051 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2052 _("can't create section `%s'"),
2058 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2060 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2064 pset
= find_section_list (padd
->name
, FALSE
,
2065 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2067 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2069 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2073 pset
= find_section_list (padd
->name
, FALSE
,
2074 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2077 padd
->section
->lma
= pset
->lma_val
;
2079 if (! bfd_set_section_alignment
2080 (obfd
, padd
->section
,
2081 bfd_section_alignment (obfd
, padd
->section
)))
2083 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2090 if (update_sections
!= NULL
)
2092 struct section_add
*pupdate
;
2094 for (pupdate
= update_sections
;
2096 pupdate
= pupdate
->next
)
2100 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2101 if (pupdate
->section
== NULL
)
2103 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2107 osec
= pupdate
->section
->output_section
;
2108 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2110 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2116 if (dump_sections
!= NULL
)
2118 struct section_add
* pdump
;
2120 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2124 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2127 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2128 _("can't dump section '%s' - it does not exist"),
2133 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
2135 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2136 _("can't dump section - it has no contents"));
2140 bfd_size_type size
= bfd_get_section_size (sec
);
2143 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2144 _("can't dump section - it is empty"));
2149 f
= fopen (pdump
->filename
, FOPEN_WB
);
2152 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2153 _("could not open section dump file"));
2157 bfd_byte
* contents
= xmalloc (size
);
2158 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
2160 if (fwrite (contents
, 1, size
, f
) != size
)
2162 non_fatal (_("error writing section contents to %s (error: %s)"),
2169 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2170 _("could not retrieve section contents"));
2177 if (gnu_debuglink_filename
!= NULL
)
2179 /* PR 15125: Give a helpful warning message if
2180 the debuglink section already exists, and
2181 allow the rest of the copy to complete. */
2182 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2184 non_fatal (_("%s: debuglink section already exists"),
2185 bfd_get_filename (obfd
));
2186 gnu_debuglink_filename
= NULL
;
2190 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2191 (obfd
, gnu_debuglink_filename
);
2193 if (gnu_debuglink_section
== NULL
)
2195 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2196 _("cannot create debug link section `%s'"),
2197 gnu_debuglink_filename
);
2201 /* Special processing for PE format files. We
2202 have no way to distinguish PE from COFF here. */
2203 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2205 bfd_vma debuglink_vma
;
2206 asection
* highest_section
;
2209 /* The PE spec requires that all sections be adjacent and sorted
2210 in ascending order of VMA. It also specifies that debug
2211 sections should be last. This is despite the fact that debug
2212 sections are not loaded into memory and so in theory have no
2215 This means that the debuglink section must be given a non-zero
2216 VMA which makes it contiguous with other debug sections. So
2217 walk the current section list, find the section with the
2218 highest VMA and start the debuglink section after that one. */
2219 for (sec
= obfd
->sections
, highest_section
= NULL
;
2223 && (highest_section
== NULL
2224 || sec
->vma
> highest_section
->vma
))
2225 highest_section
= sec
;
2227 if (highest_section
)
2228 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2229 + highest_section
->size
,
2230 /* FIXME: We ought to be using
2231 COFF_PAGE_SIZE here or maybe
2232 bfd_get_section_alignment() (if it
2233 was set) but since this is for PE
2234 and we know the required alignment
2235 it is easier just to hard code it. */
2238 /* Umm, not sure what to do in this case. */
2239 debuglink_vma
= 0x1000;
2241 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2246 c
= bfd_count_sections (obfd
);
2248 && (gap_fill_set
|| pad_to_set
))
2252 /* We must fill in gaps between the sections and/or we must pad
2253 the last section to a specified address. We do this by
2254 grabbing a list of the sections, sorting them by VMA, and
2255 increasing the section sizes as required to fill the gaps.
2256 We write out the gap contents below. */
2258 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2260 bfd_map_over_sections (obfd
, get_sections
, &set
);
2262 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2264 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2265 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2269 for (i
= 0; i
< c
- 1; i
++)
2273 bfd_vma gap_start
, gap_stop
;
2275 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2276 if ((flags
& SEC_HAS_CONTENTS
) == 0
2277 || (flags
& SEC_LOAD
) == 0)
2280 size
= bfd_section_size (obfd
, osections
[i
]);
2281 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2282 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2283 if (gap_start
< gap_stop
)
2285 if (! bfd_set_section_size (obfd
, osections
[i
],
2286 size
+ (gap_stop
- gap_start
)))
2288 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2289 _("Can't fill gap after section"));
2293 gaps
[i
] = gap_stop
- gap_start
;
2294 if (max_gap
< gap_stop
- gap_start
)
2295 max_gap
= gap_stop
- gap_start
;
2305 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2306 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2307 if (lma
+ size
< pad_to
)
2309 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2312 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2313 _("can't add padding"));
2318 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2319 if (max_gap
< pad_to
- (lma
+ size
))
2320 max_gap
= pad_to
- (lma
+ size
);
2326 /* Symbol filtering must happen after the output sections
2327 have been created, but before their contents are set. */
2329 if (convert_debugging
)
2330 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2332 if (strip_symbols
== STRIP_DEBUG
2333 || strip_symbols
== STRIP_ALL
2334 || strip_symbols
== STRIP_UNNEEDED
2335 || strip_symbols
== STRIP_NONDEBUG
2336 || strip_symbols
== STRIP_DWO
2337 || strip_symbols
== STRIP_NONDWO
2338 || discard_locals
!= LOCALS_UNDEF
2340 || htab_elements (strip_specific_htab
) != 0
2341 || htab_elements (keep_specific_htab
) != 0
2342 || htab_elements (localize_specific_htab
) != 0
2343 || htab_elements (globalize_specific_htab
) != 0
2344 || htab_elements (keepglobal_specific_htab
) != 0
2345 || htab_elements (weaken_specific_htab
) != 0
2346 || prefix_symbols_string
2349 || convert_debugging
2350 || change_leading_char
2351 || remove_leading_char
2352 || redefine_sym_list
2356 /* Mark symbols used in output relocations so that they
2357 are kept, even if they are local labels or static symbols.
2359 Note we iterate over the input sections examining their
2360 relocations since the relocations for the output sections
2361 haven't been set yet. mark_symbols_used_in_relocations will
2362 ignore input sections which have no corresponding output
2364 if (strip_symbols
!= STRIP_ALL
)
2365 bfd_map_over_sections (ibfd
,
2366 mark_symbols_used_in_relocations
,
2368 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
2369 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2372 if (convert_debugging
&& dhandle
!= NULL
)
2374 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2381 bfd_set_symtab (obfd
, osympp
, symcount
);
2383 /* This has to happen before section positions are set. */
2384 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2386 /* This has to happen after the symbol table has been set. */
2387 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2389 if (add_sections
!= NULL
)
2391 struct section_add
*padd
;
2393 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2395 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2398 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2404 if (update_sections
!= NULL
)
2406 struct section_add
*pupdate
;
2408 for (pupdate
= update_sections
;
2410 pupdate
= pupdate
->next
)
2414 osec
= pupdate
->section
->output_section
;
2415 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2418 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2424 if (gnu_debuglink_filename
!= NULL
)
2426 if (! bfd_fill_in_gnu_debuglink_section
2427 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2429 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2430 _("cannot fill debug link section `%s'"),
2431 gnu_debuglink_filename
);
2436 if (gap_fill_set
|| pad_to_set
)
2440 /* Fill in the gaps. */
2443 buf
= (bfd_byte
*) xmalloc (max_gap
);
2444 memset (buf
, gap_fill
, max_gap
);
2446 c
= bfd_count_sections (obfd
);
2447 for (i
= 0; i
< c
; i
++)
2455 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2466 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2469 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2480 /* Allow the BFD backend to copy any private data it understands
2481 from the input BFD to the output BFD. This is done last to
2482 permit the routine to look at the filtered symbol table, which is
2483 important for the ECOFF code at least. */
2484 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2486 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2487 _("error copying private BFD data"));
2491 /* Switch to the alternate machine code. We have to do this at the
2492 very end, because we only initialize the header when we create
2493 the first section. */
2494 if (use_alt_mach_code
!= 0)
2496 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2498 non_fatal (_("this target does not support %lu alternative machine codes"),
2500 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2502 non_fatal (_("treating that number as an absolute e_machine value instead"));
2503 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2506 non_fatal (_("ignoring the alternative value"));
2513 /* Read each archive element in turn from IBFD, copy the
2514 contents to temp file, and keep the temp file handle.
2515 If 'force_output_target' is TRUE then make sure that
2516 all elements in the new archive are of the type
2520 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2521 bfd_boolean force_output_target
,
2522 const bfd_arch_info_type
*input_arch
)
2526 struct name_list
*next
;
2530 bfd
**ptr
= &obfd
->archive_head
;
2533 const char *filename
;
2535 /* Make a temp directory to hold the contents. */
2536 dir
= make_tempdir (bfd_get_filename (obfd
));
2538 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2541 if (strip_symbols
== STRIP_ALL
)
2542 obfd
->has_armap
= FALSE
;
2544 obfd
->has_armap
= ibfd
->has_armap
;
2545 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2548 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2552 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2554 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2557 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2558 goto cleanup_and_exit
;
2561 while (!status
&& this_element
!= NULL
)
2567 int stat_status
= 0;
2568 bfd_boolean del
= TRUE
;
2569 bfd_boolean ok_object
;
2571 /* PR binutils/17533: Do not allow directory traversal
2572 outside of the current directory tree by archive members. */
2573 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2575 non_fatal (_("illegal pathname found in archive member: %s"),
2576 bfd_get_filename (this_element
));
2578 goto cleanup_and_exit
;
2581 /* Create an output file for this member. */
2582 output_name
= concat (dir
, "/",
2583 bfd_get_filename (this_element
), (char *) 0);
2585 /* If the file already exists, make another temp dir. */
2586 if (stat (output_name
, &buf
) >= 0)
2588 output_name
= make_tempdir (output_name
);
2589 if (output_name
== NULL
)
2591 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2594 goto cleanup_and_exit
;
2597 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2598 l
->name
= output_name
;
2602 output_name
= concat (output_name
, "/",
2603 bfd_get_filename (this_element
), (char *) 0);
2608 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2610 if (stat_status
!= 0)
2611 non_fatal (_("internal stat error on %s"),
2612 bfd_get_filename (this_element
));
2615 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2616 l
->name
= output_name
;
2621 ok_object
= bfd_check_format (this_element
, bfd_object
);
2623 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2624 _("Unable to recognise the format of file"));
2626 /* PR binutils/3110: Cope with archives
2627 containing multiple target types. */
2628 if (force_output_target
|| !ok_object
)
2629 output_bfd
= bfd_openw (output_name
, output_target
);
2631 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2633 if (output_bfd
== NULL
)
2635 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2637 goto cleanup_and_exit
;
2642 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2644 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2645 /* Try again as an unknown object file. */
2647 else if (!bfd_close (output_bfd
))
2649 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2650 /* Error in new object file. Don't change archive. */
2657 del
= !copy_unknown_object (this_element
, output_bfd
);
2658 if (!bfd_close_all_done (output_bfd
))
2660 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2661 /* Error in new object file. Don't change archive. */
2668 unlink (output_name
);
2673 if (preserve_dates
&& stat_status
== 0)
2674 set_times (output_name
, &buf
);
2676 /* Open the newly output file and attach to our list. */
2677 output_bfd
= bfd_openr (output_name
, output_target
);
2679 l
->obfd
= output_bfd
;
2682 ptr
= &output_bfd
->archive_next
;
2684 last_element
= this_element
;
2686 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2688 bfd_close (last_element
);
2693 filename
= bfd_get_filename (obfd
);
2694 if (!bfd_close (obfd
))
2697 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2700 filename
= bfd_get_filename (ibfd
);
2701 if (!bfd_close (ibfd
))
2704 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2708 /* Delete all the files that we opened. */
2709 for (l
= list
; l
!= NULL
; l
= l
->next
)
2711 if (l
->obfd
== NULL
)
2715 bfd_close (l
->obfd
);
2724 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2726 /* This is only relevant to Coff targets. */
2727 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2730 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2731 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2732 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2736 /* The top-level control. */
2739 copy_file (const char *input_filename
, const char *output_filename
,
2740 const char *input_target
, const char *output_target
,
2741 const bfd_arch_info_type
*input_arch
)
2744 char **obj_matching
;
2745 char **core_matching
;
2746 off_t size
= get_file_size (input_filename
);
2751 non_fatal (_("error: the input file '%s' is empty"),
2757 /* To allow us to do "strip *" without dying on the first
2758 non-object file, failures are nonfatal. */
2759 ibfd
= bfd_openr (input_filename
, input_target
);
2762 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2767 switch (do_debug_sections
)
2771 case compress_gnu_zlib
:
2772 case compress_gabi_zlib
:
2773 ibfd
->flags
|= BFD_COMPRESS
;
2774 /* Don't check if input is ELF here since this information is
2775 only available after bfd_check_format_matches is called. */
2776 if (do_debug_sections
!= compress_gnu_zlib
)
2777 ibfd
->flags
|= BFD_COMPRESS_GABI
;
2780 ibfd
->flags
|= BFD_DECOMPRESS
;
2786 switch (do_elf_stt_common
)
2788 case elf_stt_common
:
2789 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
2792 case no_elf_stt_common
:
2793 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
2799 if (bfd_check_format (ibfd
, bfd_archive
))
2801 bfd_boolean force_output_target
;
2804 /* bfd_get_target does not return the correct value until
2805 bfd_check_format succeeds. */
2806 if (output_target
== NULL
)
2808 output_target
= bfd_get_target (ibfd
);
2809 force_output_target
= FALSE
;
2812 force_output_target
= TRUE
;
2814 obfd
= bfd_openw (output_filename
, output_target
);
2817 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2821 /* This is a no-op on non-Coff targets. */
2822 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2824 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2826 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2831 /* bfd_get_target does not return the correct value until
2832 bfd_check_format succeeds. */
2833 if (output_target
== NULL
)
2834 output_target
= bfd_get_target (ibfd
);
2836 obfd
= bfd_openw (output_filename
, output_target
);
2839 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2843 /* This is a no-op on non-Coff targets. */
2844 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2846 if (! copy_object (ibfd
, obfd
, input_arch
))
2849 /* PR 17512: file: 0f15796a.
2850 If the file could not be copied it may not be in a writeable
2851 state. So use bfd_close_all_done to avoid the possibility of
2852 writing uninitialised data into the file. */
2853 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2856 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2860 if (!bfd_close (ibfd
))
2863 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2869 bfd_error_type obj_error
= bfd_get_error ();
2870 bfd_error_type core_error
;
2872 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2874 /* This probably can't happen.. */
2875 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2876 free (obj_matching
);
2880 core_error
= bfd_get_error ();
2881 /* Report the object error in preference to the core error. */
2882 if (obj_error
!= core_error
)
2883 bfd_set_error (obj_error
);
2885 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2887 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2889 list_matching_formats (obj_matching
);
2890 free (obj_matching
);
2892 if (core_error
== bfd_error_file_ambiguously_recognized
)
2894 list_matching_formats (core_matching
);
2895 free (core_matching
);
2902 /* Add a name to the section renaming list. */
2905 add_section_rename (const char * old_name
, const char * new_name
,
2908 section_rename
* srename
;
2910 /* Check for conflicts first. */
2911 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2912 if (strcmp (srename
->old_name
, old_name
) == 0)
2914 /* Silently ignore duplicate definitions. */
2915 if (strcmp (srename
->new_name
, new_name
) == 0
2916 && srename
->flags
== flags
)
2919 fatal (_("Multiple renames of section %s"), old_name
);
2922 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2924 srename
->old_name
= old_name
;
2925 srename
->new_name
= new_name
;
2926 srename
->flags
= flags
;
2927 srename
->next
= section_rename_list
;
2929 section_rename_list
= srename
;
2932 /* Check the section rename list for a new name of the input section
2933 ISECTION. Return the new name if one is found.
2934 Also set RETURNED_FLAGS to the flags to be used for this section. */
2937 find_section_rename (bfd
* ibfd ATTRIBUTE_UNUSED
, sec_ptr isection
,
2938 flagword
* returned_flags
)
2940 const char * old_name
= bfd_section_name (ibfd
, isection
);
2941 section_rename
* srename
;
2943 /* Default to using the flags of the input section. */
2944 * returned_flags
= bfd_get_section_flags (ibfd
, isection
);
2946 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2947 if (strcmp (srename
->old_name
, old_name
) == 0)
2949 if (srename
->flags
!= (flagword
) -1)
2950 * returned_flags
= srename
->flags
;
2952 return srename
->new_name
;
2958 /* Once each of the sections is copied, we may still need to do some
2959 finalization work for private section headers. Do that here. */
2962 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
2964 /* Allow the BFD backend to copy any private data it understands
2965 from the input section to the output section. */
2966 if (! bfd_copy_private_header_data (ibfd
, obfd
))
2969 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2970 _("error in private header data"));
2974 /* All went well. */
2978 /* Create a section in OBFD with the same
2979 name and attributes as ISECTION in IBFD. */
2982 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2984 bfd
*obfd
= (bfd
*) obfdarg
;
2985 struct section_list
*p
;
2993 char *prefix
= NULL
;
2994 bfd_boolean make_nobits
;
2996 if (is_strip_section (ibfd
, isection
))
2999 /* Get the, possibly new, name of the output section. */
3000 name
= find_section_rename (ibfd
, isection
, & flags
);
3002 /* Prefix sections. */
3003 if ((prefix_alloc_sections_string
)
3004 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3005 prefix
= prefix_alloc_sections_string
;
3006 else if (prefix_sections_string
)
3007 prefix
= prefix_sections_string
;
3013 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3019 make_nobits
= FALSE
;
3021 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3022 SECTION_CONTEXT_SET_FLAGS
);
3024 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3025 else if (strip_symbols
== STRIP_NONDEBUG
3026 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3027 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3029 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3030 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3034 /* Twiddle the input section flags so that it seems to
3035 elf.c:copy_private_bfd_data that section flags have not
3036 changed between input and output sections. This hack
3037 prevents wholesale rewriting of the program headers. */
3038 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3042 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3044 if (osection
== NULL
)
3046 err
= _("failed to create output section");
3051 elf_section_type (osection
) = SHT_NOBITS
;
3053 size
= bfd_section_size (ibfd
, isection
);
3054 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3056 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3057 else if (extract_symbol
)
3059 if (! bfd_set_section_size (obfd
, osection
, size
))
3061 err
= _("failed to set size");
3065 vma
= bfd_section_vma (ibfd
, isection
);
3066 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3067 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3070 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3076 vma
+= change_section_address
;
3078 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3080 err
= _("failed to set vma");
3084 lma
= isection
->lma
;
3085 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3086 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3089 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3095 lma
+= change_section_address
;
3097 osection
->lma
= lma
;
3099 /* FIXME: This is probably not enough. If we change the LMA we
3100 may have to recompute the header for the file as well. */
3101 if (!bfd_set_section_alignment (obfd
,
3103 bfd_section_alignment (ibfd
, isection
)))
3105 err
= _("failed to set alignment");
3109 /* Copy merge entity size. */
3110 osection
->entsize
= isection
->entsize
;
3112 /* Copy compress status. */
3113 osection
->compress_status
= isection
->compress_status
;
3115 /* This used to be mangle_section; we do here to avoid using
3116 bfd_get_section_by_name since some formats allow multiple
3117 sections with the same name. */
3118 isection
->output_section
= osection
;
3119 isection
->output_offset
= 0;
3121 if ((isection
->flags
& SEC_GROUP
) != 0)
3123 asymbol
*gsym
= group_signature (isection
);
3127 gsym
->flags
|= BSF_KEEP
;
3128 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3129 elf_group_id (isection
) = gsym
;
3133 /* Allow the BFD backend to copy any private data it understands
3134 from the input section to the output section. */
3135 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3137 err
= _("failed to copy private data");
3141 /* All went well. */
3146 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3149 /* Return TRUE if input section ISECTION should be skipped. */
3152 skip_section (bfd
*ibfd
, sec_ptr isection
)
3158 /* If we have already failed earlier on,
3159 do not keep on generating complaints now. */
3166 if (is_strip_section (ibfd
, isection
))
3169 if (is_update_section (ibfd
, isection
))
3172 flags
= bfd_get_section_flags (ibfd
, isection
);
3173 if ((flags
& SEC_GROUP
) != 0)
3176 osection
= isection
->output_section
;
3177 size
= bfd_get_section_size (isection
);
3179 if (size
== 0 || osection
== 0)
3185 /* Copy relocations in input section ISECTION of IBFD to an output
3186 section with the same name in OBFDARG. If stripping then don't
3187 copy any relocation info. */
3190 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3192 bfd
*obfd
= (bfd
*) obfdarg
;
3198 if (skip_section (ibfd
, isection
))
3201 osection
= isection
->output_section
;
3203 /* Core files and DWO files do not need to be relocated. */
3204 if (bfd_get_format (obfd
) == bfd_core
|| strip_symbols
== STRIP_NONDWO
)
3208 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3212 /* Do not complain if the target does not support relocations. */
3213 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3218 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3226 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3227 osection
->flags
&= ~SEC_RELOC
;
3231 relpp
= (arelent
**) xmalloc (relsize
);
3232 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3236 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3237 _("relocation count is negative"));
3241 if (strip_symbols
== STRIP_ALL
)
3243 /* Remove relocations which are not in
3244 keep_strip_specific_list. */
3245 arelent
**temp_relpp
;
3246 long temp_relcount
= 0;
3249 temp_relpp
= (arelent
**) xmalloc (relsize
);
3250 for (i
= 0; i
< relcount
; i
++)
3252 /* PR 17512: file: 9e907e0c. */
3253 if (relpp
[i
]->sym_ptr_ptr
)
3254 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3255 keep_specific_htab
))
3256 temp_relpp
[temp_relcount
++] = relpp
[i
];
3258 relcount
= temp_relcount
;
3263 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3266 osection
->flags
&= ~SEC_RELOC
;
3272 /* Copy the data of input section ISECTION of IBFD
3273 to an output section with the same name in OBFD. */
3276 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3278 bfd
*obfd
= (bfd
*) obfdarg
;
3279 struct section_list
*p
;
3283 if (skip_section (ibfd
, isection
))
3286 osection
= isection
->output_section
;
3287 /* The output SHF_COMPRESSED section size is different from input if
3288 ELF classes of input and output aren't the same. We can't use
3289 the output section size since --interleave will shrink the output
3290 section. Size will be updated if the section is converted. */
3291 size
= bfd_get_section_size (isection
);
3293 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3294 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3296 bfd_byte
*memhunk
= NULL
;
3298 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3299 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3303 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3309 /* We don't handle leftover bytes (too many possible behaviors,
3310 and we don't know what the user wants). The section length
3311 must be a multiple of the number of bytes to swap. */
3312 if ((size
% reverse_bytes
) == 0)
3317 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3318 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3320 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3323 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3324 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3328 /* User must pad the section up in order to do this. */
3329 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3330 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3335 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3336 char *from
= (char *) memhunk
+ copy_byte
;
3337 char *to
= (char *) memhunk
;
3338 char *end
= (char *) memhunk
+ size
;
3341 for (; from
< end
; from
+= interleave
)
3342 for (i
= 0; i
< copy_width
; i
++)
3344 if (&from
[i
] >= end
)
3349 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3350 osection
->lma
/= interleave
;
3353 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3356 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3361 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3362 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3363 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3365 void *memhunk
= xmalloc (size
);
3367 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3368 flag--they can just remove the section entirely and add it
3369 back again. However, we do permit them to turn on the
3370 SEC_HAS_CONTENTS flag, and take it to mean that the section
3371 contents should be zeroed out. */
3373 memset (memhunk
, 0, size
);
3374 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3377 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3384 /* Get all the sections. This is used when --gap-fill or --pad-to is
3388 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3390 asection
***secppp
= (asection
***) secppparg
;
3392 **secppp
= osection
;
3396 /* Sort sections by VMA. This is called via qsort, and is used when
3397 --gap-fill or --pad-to is used. We force non loadable or empty
3398 sections to the front, where they are easier to ignore. */
3401 compare_section_lma (const void *arg1
, const void *arg2
)
3403 const asection
*const *sec1
= (const asection
* const *) arg1
;
3404 const asection
*const *sec2
= (const asection
* const *) arg2
;
3405 flagword flags1
, flags2
;
3407 /* Sort non loadable sections to the front. */
3408 flags1
= (*sec1
)->flags
;
3409 flags2
= (*sec2
)->flags
;
3410 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3411 || (flags1
& SEC_LOAD
) == 0)
3413 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3414 && (flags2
& SEC_LOAD
) != 0)
3419 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3420 || (flags2
& SEC_LOAD
) == 0)
3424 /* Sort sections by LMA. */
3425 if ((*sec1
)->lma
> (*sec2
)->lma
)
3427 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3430 /* Sort sections with the same LMA by size. */
3431 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3433 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3439 /* Mark all the symbols which will be used in output relocations with
3440 the BSF_KEEP flag so that those symbols will not be stripped.
3442 Ignore relocations which will not appear in the output file. */
3445 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3447 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3452 /* Ignore an input section with no corresponding output section. */
3453 if (isection
->output_section
== NULL
)
3456 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3459 /* Do not complain if the target does not support relocations. */
3460 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3462 bfd_fatal (bfd_get_filename (ibfd
));
3468 relpp
= (arelent
**) xmalloc (relsize
);
3469 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3471 bfd_fatal (bfd_get_filename (ibfd
));
3473 /* Examine each symbol used in a relocation. If it's not one of the
3474 special bfd section symbols, then mark it with BSF_KEEP. */
3475 for (i
= 0; i
< relcount
; i
++)
3477 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3478 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3479 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3480 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3487 /* Write out debugging information. */
3490 write_debugging_info (bfd
*obfd
, void *dhandle
,
3491 long *symcountp ATTRIBUTE_UNUSED
,
3492 asymbol
***symppp ATTRIBUTE_UNUSED
)
3494 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3495 return write_ieee_debugging_info (obfd
, dhandle
);
3497 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3498 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3500 bfd_byte
*syms
, *strings
;
3501 bfd_size_type symsize
, stringsize
;
3502 asection
*stabsec
, *stabstrsec
;
3505 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3510 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3511 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3512 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3514 || stabstrsec
== NULL
3515 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3516 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3517 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3518 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3520 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3521 _("can't create debugging section"));
3525 /* We can get away with setting the section contents now because
3526 the next thing the caller is going to do is copy over the
3527 real sections. We may someday have to split the contents
3528 setting out of this function. */
3529 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3530 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3533 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3534 _("can't set debugging section contents"));
3541 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3542 _("don't know how to write debugging information for %s"),
3543 bfd_get_target (obfd
));
3547 /* If neither -D nor -U was specified explicitly,
3548 then use the configured default. */
3550 default_deterministic (void)
3552 if (deterministic
< 0)
3553 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3557 strip_main (int argc
, char *argv
[])
3559 char *input_target
= NULL
;
3560 char *output_target
= NULL
;
3561 bfd_boolean show_version
= FALSE
;
3562 bfd_boolean formats_info
= FALSE
;
3565 char *output_file
= NULL
;
3567 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3568 strip_options
, (int *) 0)) != EOF
)
3573 input_target
= optarg
;
3576 output_target
= optarg
;
3579 input_target
= output_target
= optarg
;
3582 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3583 sections_removed
= TRUE
;
3586 strip_symbols
= STRIP_ALL
;
3590 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3591 strip_symbols
= STRIP_DEBUG
;
3593 case OPTION_STRIP_DWO
:
3594 strip_symbols
= STRIP_DWO
;
3596 case OPTION_STRIP_UNNEEDED
:
3597 strip_symbols
= STRIP_UNNEEDED
;
3600 add_specific_symbol (optarg
, keep_specific_htab
);
3603 add_specific_symbol (optarg
, strip_specific_htab
);
3606 output_file
= optarg
;
3609 preserve_dates
= TRUE
;
3612 deterministic
= TRUE
;
3615 deterministic
= FALSE
;
3618 discard_locals
= LOCALS_ALL
;
3621 discard_locals
= LOCALS_START_L
;
3627 show_version
= TRUE
;
3629 case OPTION_FORMATS_INFO
:
3630 formats_info
= TRUE
;
3632 case OPTION_ONLY_KEEP_DEBUG
:
3633 strip_symbols
= STRIP_NONDEBUG
;
3635 case OPTION_KEEP_FILE_SYMBOLS
:
3636 keep_file_symbols
= 1;
3639 /* We've been given a long option. */
3646 strip_usage (stdout
, 0);
3648 strip_usage (stderr
, 1);
3659 print_version ("strip");
3661 default_deterministic ();
3663 /* Default is to strip all symbols. */
3664 if (strip_symbols
== STRIP_UNDEF
3665 && discard_locals
== LOCALS_UNDEF
3666 && htab_elements (strip_specific_htab
) == 0)
3667 strip_symbols
= STRIP_ALL
;
3669 if (output_target
== NULL
)
3670 output_target
= input_target
;
3674 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3675 strip_usage (stderr
, 1);
3677 for (; i
< argc
; i
++)
3679 int hold_status
= status
;
3680 struct stat statbuf
;
3683 if (get_file_size (argv
[i
]) < 1)
3690 /* No need to check the return value of stat().
3691 It has already been checked in get_file_size(). */
3692 stat (argv
[i
], &statbuf
);
3694 if (output_file
== NULL
3695 || filename_cmp (argv
[i
], output_file
) == 0)
3696 tmpname
= make_tempname (argv
[i
]);
3698 tmpname
= output_file
;
3700 if (tmpname
== NULL
)
3702 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3703 _("could not create temporary file to hold stripped copy"));
3709 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3713 set_times (tmpname
, &statbuf
);
3714 if (output_file
!= tmpname
)
3715 status
= (smart_rename (tmpname
,
3716 output_file
? output_file
: argv
[i
],
3717 preserve_dates
) != 0);
3719 status
= hold_status
;
3722 unlink_if_ordinary (tmpname
);
3723 if (output_file
!= tmpname
)
3730 /* Set up PE subsystem. */
3733 set_pe_subsystem (const char *s
)
3735 const char *version
, *subsystem
;
3745 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3746 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3747 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3748 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3749 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3750 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3751 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3752 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3753 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3754 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3760 /* Check for the presence of a version number. */
3761 version
= strchr (s
, ':');
3762 if (version
== NULL
)
3766 int len
= version
- s
;
3770 version
= copy
+ 1 + len
;
3771 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3773 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3775 non_fatal (_("%s: bad version in PE subsystem"), s
);
3778 /* Check for numeric subsystem. */
3779 value
= (short) strtol (subsystem
, ©
, 0);
3782 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3783 if (v
[i
].value
== value
)
3785 pe_subsystem
= value
;
3786 set_def
= v
[i
].set_def
;
3792 /* Search for subsystem by name. */
3793 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3794 if (strcmp (subsystem
, v
[i
].name
) == 0)
3796 pe_subsystem
= v
[i
].value
;
3797 set_def
= v
[i
].set_def
;
3805 fatal (_("unknown PE subsystem: %s"), s
);
3810 if (pe_file_alignment
== (bfd_vma
) -1)
3811 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3812 if (pe_section_alignment
== (bfd_vma
) -1)
3813 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3817 free ((char *) subsystem
);
3820 /* Convert EFI target to PEI target. */
3823 convert_efi_target (char *efi
)
3829 if (strcmp (efi
+ 4, "ia32") == 0)
3831 /* Change ia32 to i386. */
3836 else if (strcmp (efi
+ 4, "x86_64") == 0)
3838 /* Change x86_64 to x86-64. */
3843 /* Allocate and return a pointer to a struct section_add, initializing the
3844 structure using ARG, a string in the format "sectionname=filename".
3845 The returned structure will have its next pointer set to NEXT. The
3846 OPTION field is the name of the command line option currently being
3847 parsed, and is only used if an error needs to be reported. */
3849 static struct section_add
*
3850 init_section_add (const char *arg
,
3851 struct section_add
*next
,
3854 struct section_add
*pa
;
3857 s
= strchr (arg
, '=');
3859 fatal (_("bad format for %s"), option
);
3861 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3862 pa
->name
= xstrndup (arg
, s
- arg
);
3863 pa
->filename
= s
+ 1;
3865 pa
->contents
= NULL
;
3871 /* Load the file specified in PA, allocating memory to hold the file
3872 contents, and store a pointer to the allocated memory in the contents
3873 field of PA. The size field of PA is also updated. All errors call
3877 section_add_load_file (struct section_add
*pa
)
3882 /* We don't use get_file_size so that we can do
3883 --add-section .note.GNU_stack=/dev/null
3884 get_file_size doesn't work on /dev/null. */
3886 f
= fopen (pa
->filename
, FOPEN_RB
);
3888 fatal (_("cannot open: %s: %s"),
3889 pa
->filename
, strerror (errno
));
3893 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3901 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3904 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3906 fatal (_("%s: fread failed"), pa
->filename
);
3917 copy_main (int argc
, char *argv
[])
3919 char *input_filename
= NULL
;
3920 char *output_filename
= NULL
;
3922 char *input_target
= NULL
;
3923 char *output_target
= NULL
;
3924 bfd_boolean show_version
= FALSE
;
3925 bfd_boolean change_warn
= TRUE
;
3926 bfd_boolean formats_info
= FALSE
;
3928 struct stat statbuf
;
3929 const bfd_arch_info_type
*input_arch
= NULL
;
3931 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3932 copy_options
, (int *) 0)) != EOF
)
3937 copy_byte
= atoi (optarg
);
3939 fatal (_("byte number must be non-negative"));
3943 input_arch
= bfd_scan_arch (optarg
);
3944 if (input_arch
== NULL
)
3945 fatal (_("architecture %s unknown"), optarg
);
3951 interleave
= atoi (optarg
);
3953 fatal (_("interleave must be positive"));
3959 case OPTION_INTERLEAVE_WIDTH
:
3960 copy_width
= atoi (optarg
);
3962 fatal(_("interleave width must be positive"));
3966 case 's': /* "source" - 'I' is preferred */
3967 input_target
= optarg
;
3971 case 'd': /* "destination" - 'O' is preferred */
3972 output_target
= optarg
;
3976 input_target
= output_target
= optarg
;
3980 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
3981 sections_copied
= TRUE
;
3985 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3986 sections_removed
= TRUE
;
3990 strip_symbols
= STRIP_ALL
;
3994 strip_symbols
= STRIP_DEBUG
;
3997 case OPTION_STRIP_DWO
:
3998 strip_symbols
= STRIP_DWO
;
4001 case OPTION_STRIP_UNNEEDED
:
4002 strip_symbols
= STRIP_UNNEEDED
;
4005 case OPTION_ONLY_KEEP_DEBUG
:
4006 strip_symbols
= STRIP_NONDEBUG
;
4009 case OPTION_KEEP_FILE_SYMBOLS
:
4010 keep_file_symbols
= 1;
4013 case OPTION_ADD_GNU_DEBUGLINK
:
4014 long_section_names
= ENABLE
;
4015 gnu_debuglink_filename
= optarg
;
4019 add_specific_symbol (optarg
, keep_specific_htab
);
4023 add_specific_symbol (optarg
, strip_specific_htab
);
4026 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4027 add_specific_symbol (optarg
, strip_unneeded_htab
);
4031 add_specific_symbol (optarg
, localize_specific_htab
);
4034 case OPTION_GLOBALIZE_SYMBOL
:
4035 add_specific_symbol (optarg
, globalize_specific_htab
);
4039 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4043 add_specific_symbol (optarg
, weaken_specific_htab
);
4047 preserve_dates
= TRUE
;
4051 deterministic
= TRUE
;
4055 deterministic
= FALSE
;
4063 discard_locals
= LOCALS_ALL
;
4067 discard_locals
= LOCALS_START_L
;
4075 show_version
= TRUE
;
4078 case OPTION_FORMATS_INFO
:
4079 formats_info
= TRUE
;
4086 case OPTION_ADD_SECTION
:
4087 add_sections
= init_section_add (optarg
, add_sections
,
4089 section_add_load_file (add_sections
);
4092 case OPTION_UPDATE_SECTION
:
4093 update_sections
= init_section_add (optarg
, update_sections
,
4094 "--update-section");
4095 section_add_load_file (update_sections
);
4098 case OPTION_DUMP_SECTION
:
4099 dump_sections
= init_section_add (optarg
, dump_sections
,
4103 case OPTION_ADD_SYMBOL
:
4106 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4108 newsym
->next
= NULL
;
4109 s
= strchr (optarg
, '=');
4111 fatal (_("bad format for %s"), "--add-symbol");
4112 t
= strchr (s
+ 1, ':');
4114 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4117 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4118 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4122 newsym
->section
= NULL
;
4123 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4127 t
= strchr (t
+ 1, ',');
4129 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4131 newsym
->flags
= BSF_GLOBAL
;
4133 /* Keep 'othersym' symbols at the front of the list. */
4134 if (newsym
->othersym
)
4136 newsym
->next
= add_sym_list
;
4138 add_sym_tail
= &newsym
->next
;
4139 add_sym_list
= newsym
;
4143 *add_sym_tail
= newsym
;
4144 add_sym_tail
= &newsym
->next
;
4150 case OPTION_CHANGE_START
:
4151 change_start
= parse_vma (optarg
, "--change-start");
4154 case OPTION_CHANGE_SECTION_ADDRESS
:
4155 case OPTION_CHANGE_SECTION_LMA
:
4156 case OPTION_CHANGE_SECTION_VMA
:
4158 struct section_list
* p
;
4159 unsigned int context
= 0;
4163 char *option
= NULL
;
4168 case OPTION_CHANGE_SECTION_ADDRESS
:
4169 option
= "--change-section-address";
4170 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4172 case OPTION_CHANGE_SECTION_LMA
:
4173 option
= "--change-section-lma";
4174 context
= SECTION_CONTEXT_ALTER_LMA
;
4176 case OPTION_CHANGE_SECTION_VMA
:
4177 option
= "--change-section-vma";
4178 context
= SECTION_CONTEXT_ALTER_VMA
;
4182 s
= strchr (optarg
, '=');
4185 s
= strchr (optarg
, '+');
4188 s
= strchr (optarg
, '-');
4190 fatal (_("bad format for %s"), option
);
4195 /* Correct the context. */
4198 case OPTION_CHANGE_SECTION_ADDRESS
:
4199 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4201 case OPTION_CHANGE_SECTION_LMA
:
4202 context
= SECTION_CONTEXT_SET_LMA
;
4204 case OPTION_CHANGE_SECTION_VMA
:
4205 context
= SECTION_CONTEXT_SET_VMA
;
4211 name
= (char *) xmalloc (len
+ 1);
4212 strncpy (name
, optarg
, len
);
4215 p
= find_section_list (name
, TRUE
, context
);
4217 val
= parse_vma (s
+ 1, option
);
4223 case OPTION_CHANGE_SECTION_ADDRESS
:
4227 case OPTION_CHANGE_SECTION_LMA
:
4231 case OPTION_CHANGE_SECTION_VMA
:
4238 case OPTION_CHANGE_ADDRESSES
:
4239 change_section_address
= parse_vma (optarg
, "--change-addresses");
4240 change_start
= change_section_address
;
4243 case OPTION_CHANGE_WARNINGS
:
4247 case OPTION_CHANGE_LEADING_CHAR
:
4248 change_leading_char
= TRUE
;
4251 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4254 if (strcasecmp (optarg
, "none") == 0)
4255 do_debug_sections
= decompress
;
4256 else if (strcasecmp (optarg
, "zlib") == 0)
4257 do_debug_sections
= compress_zlib
;
4258 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4259 do_debug_sections
= compress_gnu_zlib
;
4260 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4261 do_debug_sections
= compress_gabi_zlib
;
4263 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4267 do_debug_sections
= compress
;
4270 case OPTION_DEBUGGING
:
4271 convert_debugging
= TRUE
;
4274 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4275 do_debug_sections
= decompress
;
4278 case OPTION_ELF_STT_COMMON
:
4279 if (strcasecmp (optarg
, "yes") == 0)
4280 do_elf_stt_common
= elf_stt_common
;
4281 else if (strcasecmp (optarg
, "no") == 0)
4282 do_elf_stt_common
= no_elf_stt_common
;
4284 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4288 case OPTION_GAP_FILL
:
4290 bfd_vma gap_fill_vma
;
4292 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4293 gap_fill
= (bfd_byte
) gap_fill_vma
;
4294 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4298 sprintf_vma (buff
, gap_fill_vma
);
4300 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4303 gap_fill_set
= TRUE
;
4307 case OPTION_NO_CHANGE_WARNINGS
:
4308 change_warn
= FALSE
;
4312 pad_to
= parse_vma (optarg
, "--pad-to");
4316 case OPTION_REMOVE_LEADING_CHAR
:
4317 remove_leading_char
= TRUE
;
4320 case OPTION_REDEFINE_SYM
:
4322 /* Push this redefinition onto redefine_symbol_list. */
4326 const char *nextarg
;
4327 char *source
, *target
;
4329 s
= strchr (optarg
, '=');
4331 fatal (_("bad format for %s"), "--redefine-sym");
4334 source
= (char *) xmalloc (len
+ 1);
4335 strncpy (source
, optarg
, len
);
4339 len
= strlen (nextarg
);
4340 target
= (char *) xmalloc (len
+ 1);
4341 strcpy (target
, nextarg
);
4343 redefine_list_append ("--redefine-sym", source
, target
);
4350 case OPTION_REDEFINE_SYMS
:
4351 add_redefine_syms_file (optarg
);
4354 case OPTION_SET_SECTION_FLAGS
:
4356 struct section_list
*p
;
4361 s
= strchr (optarg
, '=');
4363 fatal (_("bad format for %s"), "--set-section-flags");
4366 name
= (char *) xmalloc (len
+ 1);
4367 strncpy (name
, optarg
, len
);
4370 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4372 p
->flags
= parse_flags (s
+ 1);
4376 case OPTION_RENAME_SECTION
:
4379 const char *eq
, *fl
;
4384 eq
= strchr (optarg
, '=');
4386 fatal (_("bad format for %s"), "--rename-section");
4390 fatal (_("bad format for %s"), "--rename-section");
4392 old_name
= (char *) xmalloc (len
+ 1);
4393 strncpy (old_name
, optarg
, len
);
4397 fl
= strchr (eq
, ',');
4400 flags
= parse_flags (fl
+ 1);
4410 fatal (_("bad format for %s"), "--rename-section");
4412 new_name
= (char *) xmalloc (len
+ 1);
4413 strncpy (new_name
, eq
, len
);
4416 add_section_rename (old_name
, new_name
, flags
);
4420 case OPTION_SET_START
:
4421 set_start
= parse_vma (optarg
, "--set-start");
4422 set_start_set
= TRUE
;
4425 case OPTION_SREC_LEN
:
4426 Chunk
= parse_vma (optarg
, "--srec-len");
4429 case OPTION_SREC_FORCES3
:
4433 case OPTION_STRIP_SYMBOLS
:
4434 add_specific_symbols (optarg
, strip_specific_htab
);
4437 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4438 add_specific_symbols (optarg
, strip_unneeded_htab
);
4441 case OPTION_KEEP_SYMBOLS
:
4442 add_specific_symbols (optarg
, keep_specific_htab
);
4445 case OPTION_LOCALIZE_HIDDEN
:
4446 localize_hidden
= TRUE
;
4449 case OPTION_LOCALIZE_SYMBOLS
:
4450 add_specific_symbols (optarg
, localize_specific_htab
);
4453 case OPTION_LONG_SECTION_NAMES
:
4454 if (!strcmp ("enable", optarg
))
4455 long_section_names
= ENABLE
;
4456 else if (!strcmp ("disable", optarg
))
4457 long_section_names
= DISABLE
;
4458 else if (!strcmp ("keep", optarg
))
4459 long_section_names
= KEEP
;
4461 fatal (_("unknown long section names option '%s'"), optarg
);
4464 case OPTION_GLOBALIZE_SYMBOLS
:
4465 add_specific_symbols (optarg
, globalize_specific_htab
);
4468 case OPTION_KEEPGLOBAL_SYMBOLS
:
4469 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4472 case OPTION_WEAKEN_SYMBOLS
:
4473 add_specific_symbols (optarg
, weaken_specific_htab
);
4476 case OPTION_ALT_MACH_CODE
:
4477 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4478 if (use_alt_mach_code
== 0)
4479 fatal (_("unable to parse alternative machine code"));
4482 case OPTION_PREFIX_SYMBOLS
:
4483 prefix_symbols_string
= optarg
;
4486 case OPTION_PREFIX_SECTIONS
:
4487 prefix_sections_string
= optarg
;
4490 case OPTION_PREFIX_ALLOC_SECTIONS
:
4491 prefix_alloc_sections_string
= optarg
;
4494 case OPTION_READONLY_TEXT
:
4495 bfd_flags_to_set
|= WP_TEXT
;
4496 bfd_flags_to_clear
&= ~WP_TEXT
;
4499 case OPTION_WRITABLE_TEXT
:
4500 bfd_flags_to_clear
|= WP_TEXT
;
4501 bfd_flags_to_set
&= ~WP_TEXT
;
4505 bfd_flags_to_set
|= D_PAGED
;
4506 bfd_flags_to_clear
&= ~D_PAGED
;
4510 bfd_flags_to_clear
|= D_PAGED
;
4511 bfd_flags_to_set
&= ~D_PAGED
;
4514 case OPTION_EXTRACT_DWO
:
4515 strip_symbols
= STRIP_NONDWO
;
4518 case OPTION_EXTRACT_SYMBOL
:
4519 extract_symbol
= TRUE
;
4522 case OPTION_REVERSE_BYTES
:
4524 int prev
= reverse_bytes
;
4526 reverse_bytes
= atoi (optarg
);
4527 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4528 fatal (_("number of bytes to reverse must be positive and even"));
4530 if (prev
&& prev
!= reverse_bytes
)
4531 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4536 case OPTION_FILE_ALIGNMENT
:
4537 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4543 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4545 || (*end
!= '.' && *end
!= '\0'))
4546 non_fatal (_("%s: invalid reserve value for --heap"),
4548 else if (*end
!= '\0')
4550 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4552 non_fatal (_("%s: invalid commit value for --heap"),
4558 case OPTION_IMAGE_BASE
:
4559 pe_image_base
= parse_vma (optarg
, "--image-base");
4562 case OPTION_SECTION_ALIGNMENT
:
4563 pe_section_alignment
= parse_vma (optarg
,
4564 "--section-alignment");
4567 case OPTION_SUBSYSTEM
:
4568 set_pe_subsystem (optarg
);
4574 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4576 || (*end
!= '.' && *end
!= '\0'))
4577 non_fatal (_("%s: invalid reserve value for --stack"),
4579 else if (*end
!= '\0')
4581 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4583 non_fatal (_("%s: invalid commit value for --stack"),
4590 /* We've been given a long option. */
4595 copy_usage (stdout
, 0);
4598 copy_usage (stderr
, 1);
4609 print_version ("objcopy");
4611 if (interleave
&& copy_byte
== -1)
4612 fatal (_("interleave start byte must be set with --byte"));
4614 if (copy_byte
>= interleave
)
4615 fatal (_("byte number must be less than interleave"));
4617 if (copy_width
> interleave
- copy_byte
)
4618 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4620 if (optind
== argc
|| optind
+ 2 < argc
)
4621 copy_usage (stderr
, 1);
4623 input_filename
= argv
[optind
];
4624 if (optind
+ 1 < argc
)
4625 output_filename
= argv
[optind
+ 1];
4627 default_deterministic ();
4629 /* Default is to strip no symbols. */
4630 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4631 strip_symbols
= STRIP_NONE
;
4633 if (output_target
== NULL
)
4634 output_target
= input_target
;
4636 /* Convert input EFI target to PEI target. */
4637 if (input_target
!= NULL
4638 && strncmp (input_target
, "efi-", 4) == 0)
4642 efi
= xstrdup (output_target
+ 4);
4643 if (strncmp (efi
, "bsdrv-", 6) == 0
4644 || strncmp (efi
, "rtdrv-", 6) == 0)
4646 else if (strncmp (efi
, "app-", 4) != 0)
4647 fatal (_("unknown input EFI target: %s"), input_target
);
4650 convert_efi_target (efi
);
4653 /* Convert output EFI target to PEI target. */
4654 if (output_target
!= NULL
4655 && strncmp (output_target
, "efi-", 4) == 0)
4659 efi
= xstrdup (output_target
+ 4);
4660 if (strncmp (efi
, "app-", 4) == 0)
4662 if (pe_subsystem
== -1)
4663 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4665 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4667 if (pe_subsystem
== -1)
4668 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4671 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4673 if (pe_subsystem
== -1)
4674 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4678 fatal (_("unknown output EFI target: %s"), output_target
);
4680 if (pe_file_alignment
== (bfd_vma
) -1)
4681 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4682 if (pe_section_alignment
== (bfd_vma
) -1)
4683 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4685 output_target
= efi
;
4686 convert_efi_target (efi
);
4690 if (stat (input_filename
, & statbuf
) < 0)
4691 fatal (_("warning: could not locate '%s'. System error message: %s"),
4692 input_filename
, strerror (errno
));
4694 /* If there is no destination file, or the source and destination files
4695 are the same, then create a temp and rename the result into the input. */
4696 if (output_filename
== NULL
4697 || filename_cmp (input_filename
, output_filename
) == 0)
4698 tmpname
= make_tempname (input_filename
);
4700 tmpname
= output_filename
;
4702 if (tmpname
== NULL
)
4703 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4704 input_filename
, strerror (errno
));
4706 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4710 set_times (tmpname
, &statbuf
);
4711 if (tmpname
!= output_filename
)
4712 status
= (smart_rename (tmpname
, input_filename
,
4713 preserve_dates
) != 0);
4716 unlink_if_ordinary (tmpname
);
4720 struct section_list
*p
;
4722 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4726 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4730 sprintf_vma (buff
, p
->vma_val
);
4732 /* xgettext:c-format */
4733 non_fatal (_("%s %s%c0x%s never used"),
4734 "--change-section-vma",
4736 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4740 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4744 sprintf_vma (buff
, p
->lma_val
);
4746 /* xgettext:c-format */
4747 non_fatal (_("%s %s%c0x%s never used"),
4748 "--change-section-lma",
4750 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4761 main (int argc
, char *argv
[])
4763 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4764 setlocale (LC_MESSAGES
, "");
4766 #if defined (HAVE_SETLOCALE)
4767 setlocale (LC_CTYPE
, "");
4769 bindtextdomain (PACKAGE
, LOCALEDIR
);
4770 textdomain (PACKAGE
);
4772 program_name
= argv
[0];
4773 xmalloc_set_program_name (program_name
);
4775 START_PROGRESS (program_name
, 0);
4777 expandargv (&argc
, &argv
);
4779 strip_symbols
= STRIP_UNDEF
;
4780 discard_locals
= LOCALS_UNDEF
;
4783 set_default_bfd_target ();
4787 int i
= strlen (program_name
);
4788 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4789 /* Drop the .exe suffix, if any. */
4790 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4793 program_name
[i
] = '\0';
4796 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4799 create_symbol_htabs ();
4802 bfd_set_error_program_name (argv
[0]);
4805 strip_main (argc
, argv
);
4807 copy_main (argc
, argv
);
4809 END_PROGRESS (program_name
);