1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2016 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "libiberty.h"
28 #include "filenames.h"
32 #include "coff/internal.h"
35 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
36 header in generic PE code. */
37 #include "coff/i386.h"
40 static bfd_vma pe_file_alignment
= (bfd_vma
) -1;
41 static bfd_vma pe_heap_commit
= (bfd_vma
) -1;
42 static bfd_vma pe_heap_reserve
= (bfd_vma
) -1;
43 static bfd_vma pe_image_base
= (bfd_vma
) -1;
44 static bfd_vma pe_section_alignment
= (bfd_vma
) -1;
45 static bfd_vma pe_stack_commit
= (bfd_vma
) -1;
46 static bfd_vma pe_stack_reserve
= (bfd_vma
) -1;
47 static short pe_subsystem
= -1;
48 static short pe_major_subsystem_version
= -1;
49 static short pe_minor_subsystem_version
= -1;
51 struct is_specified_symbol_predicate_data
57 /* A list to support redefine_sym. */
62 struct redefine_node
*next
;
67 struct addsym_node
*next
;
75 typedef struct section_rename
77 const char * old_name
;
78 const char * new_name
;
80 struct section_rename
* next
;
84 /* List of sections to be renamed. */
85 static section_rename
*section_rename_list
;
87 static asymbol
**isympp
= NULL
; /* Input symbols. */
88 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
90 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
91 static int copy_byte
= -1;
92 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
93 static int copy_width
= 1;
95 static bfd_boolean verbose
; /* Print file and target names. */
96 static bfd_boolean preserve_dates
; /* Preserve input file timestamp. */
97 static int deterministic
= -1; /* Enable deterministic archives. */
98 static int status
= 0; /* Exit status. */
103 STRIP_NONE
, /* Don't strip. */
104 STRIP_DEBUG
, /* Strip all debugger symbols. */
105 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
106 STRIP_NONDEBUG
, /* Strip everything but debug info. */
107 STRIP_DWO
, /* Strip all DWO info. */
108 STRIP_NONDWO
, /* Strip everything but DWO info. */
109 STRIP_ALL
/* Strip all symbols. */
112 /* Which symbols to remove. */
113 static enum strip_action strip_symbols
= STRIP_UNDEF
;
118 LOCALS_START_L
, /* Discard locals starting with L. */
119 LOCALS_ALL
/* Discard all locals. */
122 /* Which local symbols to remove. Overrides STRIP_ALL. */
123 static enum locals_action discard_locals
;
125 /* Structure used to hold lists of sections and actions to take. */
128 struct section_list
* next
; /* Next section to change. */
129 const char * pattern
; /* Section name pattern. */
130 bfd_boolean used
; /* Whether this entry was used. */
132 unsigned int context
; /* What to do with matching sections. */
133 /* Flag bits used in the context field.
134 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
135 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
136 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
137 #define SECTION_CONTEXT_SET_VMA (1 << 2) /* Set the sections' VMA address. */
138 #define SECTION_CONTEXT_ALTER_VMA (1 << 3) /* Increment or decrement the section's VMA address. */
139 #define SECTION_CONTEXT_SET_LMA (1 << 4) /* Set the sections' LMA address. */
140 #define SECTION_CONTEXT_ALTER_LMA (1 << 5) /* Increment or decrement the section's LMA address. */
141 #define SECTION_CONTEXT_SET_FLAGS (1 << 6) /* Set the section's flags. */
143 bfd_vma vma_val
; /* Amount to change by or set to. */
144 bfd_vma lma_val
; /* Amount to change by or set to. */
145 flagword flags
; /* What to set the section flags to. */
148 static struct section_list
*change_sections
;
150 /* TRUE if some sections are to be removed. */
151 static bfd_boolean sections_removed
;
153 /* TRUE if only some sections are to be copied. */
154 static bfd_boolean sections_copied
;
156 /* Changes to the start address. */
157 static bfd_vma change_start
= 0;
158 static bfd_boolean set_start_set
= FALSE
;
159 static bfd_vma set_start
;
161 /* Changes to section addresses. */
162 static bfd_vma change_section_address
= 0;
164 /* Filling gaps between sections. */
165 static bfd_boolean gap_fill_set
= FALSE
;
166 static bfd_byte gap_fill
= 0;
168 /* Pad to a given address. */
169 static bfd_boolean pad_to_set
= FALSE
;
170 static bfd_vma pad_to
;
172 /* Use alternative machine code? */
173 static unsigned long use_alt_mach_code
= 0;
175 /* Output BFD flags user wants to set or clear */
176 static flagword bfd_flags_to_set
;
177 static flagword bfd_flags_to_clear
;
179 /* List of sections to add. */
182 /* Next section to add. */
183 struct section_add
*next
;
184 /* Name of section to add. */
186 /* Name of file holding section contents. */
187 const char *filename
;
190 /* Contents of file. */
192 /* BFD section, after it has been added. */
196 /* List of sections to add to the output BFD. */
197 static struct section_add
*add_sections
;
199 /* List of sections to update in the output BFD. */
200 static struct section_add
*update_sections
;
202 /* List of sections to dump from the output BFD. */
203 static struct section_add
*dump_sections
;
205 /* If non-NULL the argument to --add-gnu-debuglink.
206 This should be the filename to store in the .gnu_debuglink section. */
207 static const char * gnu_debuglink_filename
= NULL
;
209 /* Whether to convert debugging information. */
210 static bfd_boolean convert_debugging
= FALSE
;
212 /* Whether to compress/decompress DWARF debug sections. */
217 compress_zlib
= compress
| 1 << 1,
218 compress_gnu_zlib
= compress
| 1 << 2,
219 compress_gabi_zlib
= compress
| 1 << 3,
221 } do_debug_sections
= nothing
;
223 /* Whether to generate ELF common symbols with the STT_COMMON type. */
224 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
226 /* Whether to change the leading character in symbol names. */
227 static bfd_boolean change_leading_char
= FALSE
;
229 /* Whether to remove the leading character from global symbol names. */
230 static bfd_boolean remove_leading_char
= FALSE
;
232 /* Whether to permit wildcard in symbol comparison. */
233 static bfd_boolean wildcard
= FALSE
;
235 /* True if --localize-hidden is in effect. */
236 static bfd_boolean localize_hidden
= FALSE
;
238 /* List of symbols to strip, keep, localize, keep-global, weaken,
240 static htab_t strip_specific_htab
= NULL
;
241 static htab_t strip_unneeded_htab
= NULL
;
242 static htab_t keep_specific_htab
= NULL
;
243 static htab_t localize_specific_htab
= NULL
;
244 static htab_t globalize_specific_htab
= NULL
;
245 static htab_t keepglobal_specific_htab
= NULL
;
246 static htab_t weaken_specific_htab
= NULL
;
247 static struct redefine_node
*redefine_sym_list
= NULL
;
248 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
249 static int add_symbols
= 0;
251 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
252 static bfd_boolean weaken
= FALSE
;
254 /* If this is TRUE, we retain BSF_FILE symbols. */
255 static bfd_boolean keep_file_symbols
= FALSE
;
257 /* Prefix symbols/sections. */
258 static char *prefix_symbols_string
= 0;
259 static char *prefix_sections_string
= 0;
260 static char *prefix_alloc_sections_string
= 0;
262 /* True if --extract-symbol was passed on the command line. */
263 static bfd_boolean extract_symbol
= FALSE
;
265 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
266 of <reverse_bytes> bytes within each output section. */
267 static int reverse_bytes
= 0;
269 /* For Coff objects, we may want to allow or disallow long section names,
270 or preserve them where found in the inputs. Debug info relies on them. */
271 enum long_section_name_handling
278 /* The default long section handling mode is to preserve them.
279 This is also the only behaviour for 'strip'. */
280 static enum long_section_name_handling long_section_names
= KEEP
;
282 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
283 enum command_line_switch
285 OPTION_ADD_SECTION
=150,
286 OPTION_ADD_GNU_DEBUGLINK
,
288 OPTION_ALT_MACH_CODE
,
289 OPTION_CHANGE_ADDRESSES
,
290 OPTION_CHANGE_LEADING_CHAR
,
291 OPTION_CHANGE_SECTION_ADDRESS
,
292 OPTION_CHANGE_SECTION_LMA
,
293 OPTION_CHANGE_SECTION_VMA
,
295 OPTION_CHANGE_WARNINGS
,
296 OPTION_COMPRESS_DEBUG_SECTIONS
,
298 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
300 OPTION_ELF_STT_COMMON
,
302 OPTION_EXTRACT_SYMBOL
,
303 OPTION_FILE_ALIGNMENT
,
306 OPTION_GLOBALIZE_SYMBOL
,
307 OPTION_GLOBALIZE_SYMBOLS
,
311 OPTION_INTERLEAVE_WIDTH
,
312 OPTION_KEEPGLOBAL_SYMBOLS
,
313 OPTION_KEEP_FILE_SYMBOLS
,
315 OPTION_LOCALIZE_HIDDEN
,
316 OPTION_LOCALIZE_SYMBOLS
,
317 OPTION_LONG_SECTION_NAMES
,
318 OPTION_NO_CHANGE_WARNINGS
,
319 OPTION_ONLY_KEEP_DEBUG
,
321 OPTION_PREFIX_ALLOC_SECTIONS
,
322 OPTION_PREFIX_SECTIONS
,
323 OPTION_PREFIX_SYMBOLS
,
325 OPTION_READONLY_TEXT
,
327 OPTION_REDEFINE_SYMS
,
328 OPTION_REMOVE_LEADING_CHAR
,
329 OPTION_RENAME_SECTION
,
330 OPTION_REVERSE_BYTES
,
331 OPTION_SECTION_ALIGNMENT
,
332 OPTION_SET_SECTION_FLAGS
,
338 OPTION_STRIP_SYMBOLS
,
339 OPTION_STRIP_UNNEEDED
,
340 OPTION_STRIP_UNNEEDED_SYMBOL
,
341 OPTION_STRIP_UNNEEDED_SYMBOLS
,
343 OPTION_UPDATE_SECTION
,
345 OPTION_WEAKEN_SYMBOLS
,
349 /* Options to handle if running as "strip". */
351 static struct option strip_options
[] =
353 {"disable-deterministic-archives", no_argument
, 0, 'U'},
354 {"discard-all", no_argument
, 0, 'x'},
355 {"discard-locals", no_argument
, 0, 'X'},
356 {"enable-deterministic-archives", no_argument
, 0, 'D'},
357 {"format", required_argument
, 0, 'F'}, /* Obsolete */
358 {"help", no_argument
, 0, 'h'},
359 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
360 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
361 {"input-target", required_argument
, 0, 'I'},
362 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
363 {"keep-symbol", required_argument
, 0, 'K'},
364 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
365 {"output-file", required_argument
, 0, 'o'},
366 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
367 {"output-target", required_argument
, 0, 'O'},
368 {"preserve-dates", no_argument
, 0, 'p'},
369 {"remove-section", required_argument
, 0, 'R'},
370 {"strip-all", no_argument
, 0, 's'},
371 {"strip-debug", no_argument
, 0, 'S'},
372 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
373 {"strip-symbol", required_argument
, 0, 'N'},
374 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
375 {"target", required_argument
, 0, 'F'},
376 {"verbose", no_argument
, 0, 'v'},
377 {"version", no_argument
, 0, 'V'},
378 {"wildcard", no_argument
, 0, 'w'},
379 {0, no_argument
, 0, 0}
382 /* Options to handle if running as "objcopy". */
384 static struct option copy_options
[] =
386 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
387 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
388 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
389 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
390 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
391 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
392 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
393 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
394 {"binary-architecture", required_argument
, 0, 'B'},
395 {"byte", required_argument
, 0, 'b'},
396 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
397 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
398 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
399 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
400 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
401 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
402 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
403 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
404 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
405 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
406 {"disable-deterministic-archives", no_argument
, 0, 'U'},
407 {"discard-all", no_argument
, 0, 'x'},
408 {"discard-locals", no_argument
, 0, 'X'},
409 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
410 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
411 {"enable-deterministic-archives", no_argument
, 0, 'D'},
412 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
413 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
414 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
415 {"format", required_argument
, 0, 'F'}, /* Obsolete */
416 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
417 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
418 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
419 {"heap", required_argument
, 0, OPTION_HEAP
},
420 {"help", no_argument
, 0, 'h'},
421 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
422 {"impure", no_argument
, 0, OPTION_IMPURE
},
423 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
424 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
425 {"input-target", required_argument
, 0, 'I'},
426 {"interleave", optional_argument
, 0, 'i'},
427 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
428 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
429 {"keep-global-symbol", required_argument
, 0, 'G'},
430 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
431 {"keep-symbol", required_argument
, 0, 'K'},
432 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
433 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
434 {"localize-symbol", required_argument
, 0, 'L'},
435 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
436 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
437 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
438 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
439 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
440 {"only-section", required_argument
, 0, 'j'},
441 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
442 {"output-target", required_argument
, 0, 'O'},
443 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
444 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
445 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
446 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
447 {"preserve-dates", no_argument
, 0, 'p'},
448 {"pure", no_argument
, 0, OPTION_PURE
},
449 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
450 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
451 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
452 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
453 {"remove-section", required_argument
, 0, 'R'},
454 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
455 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
456 {"section-alignment", required_argument
, 0, OPTION_SECTION_ALIGNMENT
},
457 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
458 {"set-start", required_argument
, 0, OPTION_SET_START
},
459 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
460 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
461 {"stack", required_argument
, 0, OPTION_STACK
},
462 {"strip-all", no_argument
, 0, 'S'},
463 {"strip-debug", no_argument
, 0, 'g'},
464 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
465 {"strip-symbol", required_argument
, 0, 'N'},
466 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
467 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
468 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
469 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
470 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
471 {"target", required_argument
, 0, 'F'},
472 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
473 {"verbose", no_argument
, 0, 'v'},
474 {"version", no_argument
, 0, 'V'},
475 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
476 {"weaken-symbol", required_argument
, 0, 'W'},
477 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
478 {"wildcard", no_argument
, 0, 'w'},
479 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
480 {0, no_argument
, 0, 0}
484 extern char *program_name
;
486 /* This flag distinguishes between strip and objcopy:
487 1 means this is 'strip'; 0 means this is 'objcopy'.
488 -1 means if we should use argv[0] to decide. */
491 /* The maximum length of an S record. This variable is declared in srec.c
492 and can be modified by the --srec-len parameter. */
493 extern unsigned int Chunk
;
495 /* Restrict the generation of Srecords to type S3 only.
496 This variable is declare in bfd/srec.c and can be toggled
497 on by the --srec-forceS3 command line switch. */
498 extern bfd_boolean S3Forced
;
500 /* Forward declarations. */
501 static void setup_section (bfd
*, asection
*, void *);
502 static void setup_bfd_headers (bfd
*, bfd
*);
503 static void copy_relocations_in_section (bfd
*, asection
*, void *);
504 static void copy_section (bfd
*, asection
*, void *);
505 static void get_sections (bfd
*, asection
*, void *);
506 static int compare_section_lma (const void *, const void *);
507 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
508 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
509 static const char *lookup_sym_redefinition (const char *);
512 copy_usage (FILE *stream
, int exit_status
)
514 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
515 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
516 fprintf (stream
, _(" The options are:\n"));
517 fprintf (stream
, _("\
518 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
519 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
520 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
521 -F --target <bfdname> Set both input and output format to <bfdname>\n\
522 --debugging Convert debugging information, if possible\n\
523 -p --preserve-dates Copy modified/access timestamps to the output\n"));
524 if (DEFAULT_AR_DETERMINISTIC
)
525 fprintf (stream
, _("\
526 -D --enable-deterministic-archives\n\
527 Produce deterministic output when stripping archives (default)\n\
528 -U --disable-deterministic-archives\n\
529 Disable -D behavior\n"));
531 fprintf (stream
, _("\
532 -D --enable-deterministic-archives\n\
533 Produce deterministic output when stripping archives\n\
534 -U --disable-deterministic-archives\n\
535 Disable -D behavior (default)\n"));
536 fprintf (stream
, _("\
537 -j --only-section <name> Only copy section <name> into the output\n\
538 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
539 -R --remove-section <name> Remove section <name> from the output\n\
540 -S --strip-all Remove all symbol and relocation information\n\
541 -g --strip-debug Remove all debugging symbols & sections\n\
542 --strip-dwo Remove all DWO sections\n\
543 --strip-unneeded Remove all symbols not needed by relocations\n\
544 -N --strip-symbol <name> Do not copy symbol <name>\n\
545 --strip-unneeded-symbol <name>\n\
546 Do not copy symbol <name> unless needed by\n\
548 --only-keep-debug Strip everything but the debug information\n\
549 --extract-dwo Copy only DWO sections\n\
550 --extract-symbol Remove section contents but keep symbols\n\
551 -K --keep-symbol <name> Do not strip symbol <name>\n\
552 --keep-file-symbols Do not strip file symbol(s)\n\
553 --localize-hidden Turn all ELF hidden symbols into locals\n\
554 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
555 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
556 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
557 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
558 --weaken Force all global symbols to be marked as weak\n\
559 -w --wildcard Permit wildcard in symbol comparison\n\
560 -x --discard-all Remove all non-global symbols\n\
561 -X --discard-locals Remove any compiler-generated symbols\n\
562 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
563 --interleave-width <number> Set N for --interleave\n\
564 -b --byte <num> Select byte <num> in every interleaved block\n\
565 --gap-fill <val> Fill gaps between sections with <val>\n\
566 --pad-to <addr> Pad the last section up to address <addr>\n\
567 --set-start <addr> Set the start address to <addr>\n\
568 {--change-start|--adjust-start} <incr>\n\
569 Add <incr> to the start address\n\
570 {--change-addresses|--adjust-vma} <incr>\n\
571 Add <incr> to LMA, VMA and start addresses\n\
572 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
573 Change LMA and VMA of section <name> by <val>\n\
574 --change-section-lma <name>{=|+|-}<val>\n\
575 Change the LMA of section <name> by <val>\n\
576 --change-section-vma <name>{=|+|-}<val>\n\
577 Change the VMA of section <name> by <val>\n\
578 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
579 Warn if a named section does not exist\n\
580 --set-section-flags <name>=<flags>\n\
581 Set section <name>'s properties to <flags>\n\
582 --add-section <name>=<file> Add section <name> found in <file> to output\n\
583 --update-section <name>=<file>\n\
584 Update contents of section <name> with\n\
585 contents found in <file>\n\
586 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
587 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
588 --long-section-names {enable|disable|keep}\n\
589 Handle long section names in Coff objects.\n\
590 --change-leading-char Force output format's leading character style\n\
591 --remove-leading-char Remove leading character from global symbols\n\
592 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
593 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
594 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
596 --srec-len <number> Restrict the length of generated Srecords\n\
597 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
598 --strip-symbols <file> -N for all symbols listed in <file>\n\
599 --strip-unneeded-symbols <file>\n\
600 --strip-unneeded-symbol for all symbols listed\n\
602 --keep-symbols <file> -K for all symbols listed in <file>\n\
603 --localize-symbols <file> -L for all symbols listed in <file>\n\
604 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
605 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
606 --weaken-symbols <file> -W for all symbols listed in <file>\n\
607 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
608 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
609 --writable-text Mark the output text as writable\n\
610 --readonly-text Make the output text write protected\n\
611 --pure Mark the output file as demand paged\n\
612 --impure Mark the output file as impure\n\
613 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
614 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
615 --prefix-alloc-sections <prefix>\n\
616 Add <prefix> to start of every allocatable\n\
618 --file-alignment <num> Set PE file alignment to <num>\n\
619 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
621 --image-base <address> Set PE image base to <address>\n\
622 --section-alignment <num> Set PE section alignment to <num>\n\
623 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
625 --subsystem <name>[:<version>]\n\
626 Set PE subsystem to <name> [& <version>]\n\
627 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
628 Compress DWARF debug sections using zlib\n\
629 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
630 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
632 -v --verbose List all object files modified\n\
633 @<file> Read options from <file>\n\
634 -V --version Display this program's version number\n\
635 -h --help Display this output\n\
636 --info List object formats & architectures supported\n\
638 list_supported_targets (program_name
, stream
);
639 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
640 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
645 strip_usage (FILE *stream
, int exit_status
)
647 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
648 fprintf (stream
, _(" Removes symbols and sections from files\n"));
649 fprintf (stream
, _(" The options are:\n"));
650 fprintf (stream
, _("\
651 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
652 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
653 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
654 -p --preserve-dates Copy modified/access timestamps to the output\n\
656 if (DEFAULT_AR_DETERMINISTIC
)
657 fprintf (stream
, _("\
658 -D --enable-deterministic-archives\n\
659 Produce deterministic output when stripping archives (default)\n\
660 -U --disable-deterministic-archives\n\
661 Disable -D behavior\n"));
663 fprintf (stream
, _("\
664 -D --enable-deterministic-archives\n\
665 Produce deterministic output when stripping archives\n\
666 -U --disable-deterministic-archives\n\
667 Disable -D behavior (default)\n"));
668 fprintf (stream
, _("\
669 -R --remove-section=<name> Also remove section <name> from the output\n\
670 -s --strip-all Remove all symbol and relocation information\n\
671 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
672 --strip-dwo Remove all DWO sections\n\
673 --strip-unneeded Remove all symbols not needed by relocations\n\
674 --only-keep-debug Strip everything but the debug information\n\
675 -N --strip-symbol=<name> Do not copy symbol <name>\n\
676 -K --keep-symbol=<name> Do not strip symbol <name>\n\
677 --keep-file-symbols Do not strip file symbol(s)\n\
678 -w --wildcard Permit wildcard in symbol comparison\n\
679 -x --discard-all Remove all non-global symbols\n\
680 -X --discard-locals Remove any compiler-generated symbols\n\
681 -v --verbose List all object files modified\n\
682 -V --version Display this program's version number\n\
683 -h --help Display this output\n\
684 --info List object formats & architectures supported\n\
685 -o <file> Place stripped output into <file>\n\
688 list_supported_targets (program_name
, stream
);
689 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
690 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
694 /* Parse section flags into a flagword, with a fatal error if the
695 string can't be parsed. */
698 parse_flags (const char *s
)
708 snext
= strchr (s
, ',');
718 #define PARSE_FLAG(fname,fval) \
719 else if (strncasecmp (fname, s, len) == 0) ret |= fval
720 PARSE_FLAG ("alloc", SEC_ALLOC
);
721 PARSE_FLAG ("load", SEC_LOAD
);
722 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
723 PARSE_FLAG ("readonly", SEC_READONLY
);
724 PARSE_FLAG ("debug", SEC_DEBUGGING
);
725 PARSE_FLAG ("code", SEC_CODE
);
726 PARSE_FLAG ("data", SEC_DATA
);
727 PARSE_FLAG ("rom", SEC_ROM
);
728 PARSE_FLAG ("share", SEC_COFF_SHARED
);
729 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
730 PARSE_FLAG ("merge", SEC_MERGE
);
731 PARSE_FLAG ("strings", SEC_STRINGS
);
737 copy
= (char *) xmalloc (len
+ 1);
738 strncpy (copy
, s
, len
);
740 non_fatal (_("unrecognized section flag `%s'"), copy
);
741 fatal (_("supported flags: %s"),
742 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
752 /* Parse symbol flags into a flagword, with a fatal error if the
753 string can't be parsed. */
756 parse_symflags (const char *s
, char **other
)
766 snext
= strchr (s
, ',');
775 #define PARSE_FLAG(fname, fval) \
776 else if (len == sizeof fname - 1 \
777 && strncasecmp (fname, s, len) == 0) \
780 #define PARSE_OTHER(fname, fval) \
781 else if (len >= sizeof fname \
782 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
783 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
786 PARSE_FLAG ("local", BSF_LOCAL
);
787 PARSE_FLAG ("global", BSF_GLOBAL
);
788 PARSE_FLAG ("export", BSF_EXPORT
);
789 PARSE_FLAG ("debug", BSF_DEBUGGING
);
790 PARSE_FLAG ("function", BSF_FUNCTION
);
791 PARSE_FLAG ("weak", BSF_WEAK
);
792 PARSE_FLAG ("section", BSF_SECTION_SYM
);
793 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
794 PARSE_FLAG ("warning", BSF_WARNING
);
795 PARSE_FLAG ("indirect", BSF_INDIRECT
);
796 PARSE_FLAG ("file", BSF_FILE
);
797 PARSE_FLAG ("object", BSF_OBJECT
);
798 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
799 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
800 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
801 PARSE_OTHER ("before=", *other
);
809 copy
= (char *) xmalloc (len
+ 1);
810 strncpy (copy
, s
, len
);
812 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
813 fatal (_("supported flags: %s"),
814 "local, global, export, debug, function, weak, section, "
815 "constructor, warning, indirect, file, object, synthetic, "
816 "indirect-function, unique-object, before=<othersym>");
826 /* Find and optionally add an entry in the change_sections list.
828 We need to be careful in how we match section names because of the support
829 for wildcard characters. For example suppose that the user has invoked
832 --set-section-flags .debug_*=debug
833 --set-section-flags .debug_str=readonly,debug
834 --change-section-address .debug_*ranges=0x1000
836 With the idea that all debug sections will receive the DEBUG flag, the
837 .debug_str section will also receive the READONLY flag and the
838 .debug_ranges and .debug_aranges sections will have their address set to
839 0x1000. (This may not make much sense, but it is just an example).
841 When adding the section name patterns to the section list we need to make
842 sure that previous entries do not match with the new entry, unless the
843 match is exact. (In which case we assume that the user is overriding
844 the previous entry with the new context).
846 When matching real section names to the section list we make use of the
847 wildcard characters, but we must do so in context. Eg if we are setting
848 section addresses then we match for .debug_ranges but not for .debug_info.
850 Finally, if ADD is false and we do find a match, we mark the section list
853 static struct section_list
*
854 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
856 struct section_list
*p
;
858 /* assert ((context & ((1 << 7) - 1)) != 0); */
860 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
864 if (strcmp (p
->pattern
, name
) == 0)
866 /* Check for context conflicts. */
867 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
868 && (context
& SECTION_CONTEXT_COPY
))
869 || ((context
& SECTION_CONTEXT_REMOVE
)
870 && (p
->context
& SECTION_CONTEXT_COPY
)))
871 fatal (_("error: %s both copied and removed"), name
);
873 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
874 && (context
& SECTION_CONTEXT_ALTER_VMA
))
875 || ((context
& SECTION_CONTEXT_SET_VMA
)
876 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
877 fatal (_("error: %s both sets and alters VMA"), name
);
879 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
880 && (context
& SECTION_CONTEXT_ALTER_LMA
))
881 || ((context
& SECTION_CONTEXT_SET_LMA
)
882 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
883 fatal (_("error: %s both sets and alters LMA"), name
);
885 /* Extend the context. */
886 p
->context
|= context
;
890 /* If we are not adding a new name/pattern then
891 only check for a match if the context applies. */
892 else if ((p
->context
& context
)
893 /* We could check for the presence of wildchar characters
894 first and choose between calling strcmp and fnmatch,
895 but is that really worth it ? */
896 && fnmatch (p
->pattern
, name
, 0) == 0)
906 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
909 p
->context
= context
;
913 p
->next
= change_sections
;
919 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
922 eq_string (const void *s1
, const void *s2
)
924 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
928 create_symbol_htab (void)
930 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
934 create_symbol_htabs (void)
936 strip_specific_htab
= create_symbol_htab ();
937 strip_unneeded_htab
= create_symbol_htab ();
938 keep_specific_htab
= create_symbol_htab ();
939 localize_specific_htab
= create_symbol_htab ();
940 globalize_specific_htab
= create_symbol_htab ();
941 keepglobal_specific_htab
= create_symbol_htab ();
942 weaken_specific_htab
= create_symbol_htab ();
945 /* Add a symbol to strip_specific_list. */
948 add_specific_symbol (const char *name
, htab_t htab
)
950 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
953 /* Add symbols listed in `filename' to strip_specific_list. */
955 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
956 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
959 add_specific_symbols (const char *filename
, htab_t htab
)
965 unsigned int line_count
;
967 size
= get_file_size (filename
);
974 buffer
= (char *) xmalloc (size
+ 2);
975 f
= fopen (filename
, FOPEN_RT
);
977 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
979 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
980 fatal (_("%s: fread failed"), filename
);
983 buffer
[size
] = '\n';
984 buffer
[size
+ 1] = '\0';
988 for (line
= buffer
; * line
!= '\0'; line
++)
993 int finished
= FALSE
;
995 for (eol
= line
;; eol
++)
1001 /* Cope with \n\r. */
1009 /* Cope with \r\n. */
1020 /* Line comment, Terminate the line here, in case a
1021 name is present and then allow the rest of the
1022 loop to find the real end of the line. */
1034 /* A name may now exist somewhere between 'line' and 'eol'.
1035 Strip off leading whitespace and trailing whitespace,
1036 then add it to the list. */
1037 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1039 for (name_end
= name
;
1040 (! IS_WHITESPACE (* name_end
))
1041 && (! IS_LINE_TERMINATOR (* name_end
));
1045 if (! IS_LINE_TERMINATOR (* name_end
))
1049 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1052 if (! IS_LINE_TERMINATOR (* extra
))
1053 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1054 filename
, line_count
);
1059 if (name_end
> name
)
1060 add_specific_symbol (name
, htab
);
1062 /* Advance line pointer to end of line. The 'eol ++' in the for
1063 loop above will then advance us to the start of the next line. */
1069 /* See whether a symbol should be stripped or kept
1070 based on strip_specific_list and keep_symbols. */
1073 is_specified_symbol_predicate (void **slot
, void *data
)
1075 struct is_specified_symbol_predicate_data
*d
=
1076 (struct is_specified_symbol_predicate_data
*) data
;
1077 const char *slot_name
= (char *) *slot
;
1079 if (*slot_name
!= '!')
1081 if (! fnmatch (slot_name
, d
->name
, 0))
1084 /* Continue traversal, there might be a non-match rule. */
1090 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1093 /* Stop traversal. */
1098 /* Continue traversal. */
1103 is_specified_symbol (const char *name
, htab_t htab
)
1107 struct is_specified_symbol_predicate_data data
;
1112 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1117 return htab_find (htab
, name
) != NULL
;
1120 /* Return a pointer to the symbol used as a signature for GROUP. */
1123 group_signature (asection
*group
)
1125 bfd
*abfd
= group
->owner
;
1126 Elf_Internal_Shdr
*ghdr
;
1128 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1132 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1135 ghdr
= &elf_section_data (group
)->this_hdr
;
1136 if (ghdr
->sh_link
< elf_numsections (abfd
))
1138 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1139 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1141 if (symhdr
->sh_type
== SHT_SYMTAB
1142 && ghdr
->sh_info
> 0
1143 && ghdr
->sh_info
< (symhdr
->sh_size
/ bed
->s
->sizeof_sym
))
1144 return isympp
[ghdr
->sh_info
- 1];
1149 /* Return TRUE if the section is a DWO section. */
1152 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1154 const char *name
= bfd_get_section_name (abfd
, sec
);
1155 int len
= strlen (name
);
1157 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1160 /* Return TRUE if section SEC is in the update list. */
1163 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1165 if (update_sections
!= NULL
)
1167 struct section_add
*pupdate
;
1169 for (pupdate
= update_sections
;
1171 pupdate
= pupdate
->next
)
1173 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1181 /* See if a non-group section is being removed. */
1184 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1186 if (sections_removed
|| sections_copied
)
1188 struct section_list
*p
;
1189 struct section_list
*q
;
1191 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1192 SECTION_CONTEXT_REMOVE
);
1193 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1194 SECTION_CONTEXT_COPY
);
1197 fatal (_("error: section %s matches both remove and copy options"),
1198 bfd_get_section_name (abfd
, sec
));
1199 if (p
&& is_update_section (abfd
, sec
))
1200 fatal (_("error: section %s matches both update and remove options"),
1201 bfd_get_section_name (abfd
, sec
));
1205 if (sections_copied
&& q
== NULL
)
1209 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1211 if (strip_symbols
== STRIP_DEBUG
1212 || strip_symbols
== STRIP_UNNEEDED
1213 || strip_symbols
== STRIP_ALL
1214 || discard_locals
== LOCALS_ALL
1215 || convert_debugging
)
1217 /* By default we don't want to strip .reloc section.
1218 This section has for pe-coff special meaning. See
1219 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1220 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1224 if (strip_symbols
== STRIP_DWO
)
1225 return is_dwo_section (abfd
, sec
);
1227 if (strip_symbols
== STRIP_NONDEBUG
)
1231 if (strip_symbols
== STRIP_NONDWO
)
1232 return !is_dwo_section (abfd
, sec
);
1237 /* See if a section is being removed. */
1240 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1242 if (is_strip_section_1 (abfd
, sec
))
1245 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1249 asection
*elt
, *first
;
1252 If we are going to strip the group signature symbol, then
1253 strip the group section too. */
1254 gsym
= group_signature (sec
);
1259 if ((strip_symbols
== STRIP_ALL
1260 && !is_specified_symbol (gname
, keep_specific_htab
))
1261 || is_specified_symbol (gname
, strip_specific_htab
))
1264 /* Remove the group section if all members are removed. */
1265 first
= elt
= elf_next_in_group (sec
);
1268 if (!is_strip_section_1 (abfd
, elt
))
1270 elt
= elf_next_in_group (elt
);
1282 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1284 /* Always keep ELF note sections. */
1285 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1286 return (elf_section_type (isection
) == SHT_NOTE
);
1288 /* Always keep the .buildid section for PE/COFF.
1290 Strictly, this should be written "always keep the section storing the debug
1291 directory", but that may be the .text section for objects produced by some
1292 tools, which it is not sensible to keep. */
1293 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1294 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1299 /* Return true if SYM is a hidden symbol. */
1302 is_hidden_symbol (asymbol
*sym
)
1304 elf_symbol_type
*elf_sym
;
1306 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1307 if (elf_sym
!= NULL
)
1308 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1318 need_sym_before (struct addsym_node
**node
, const char *sym
)
1321 struct addsym_node
*ptr
= add_sym_list
;
1323 /* 'othersym' symbols are at the front of the list. */
1324 for (count
= 0; count
< add_symbols
; count
++)
1328 else if (strcmp (ptr
->othersym
, sym
) == 0)
1330 free (ptr
->othersym
);
1331 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1341 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1343 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1345 bfd_asymbol_name (sym
) = ptr
->symdef
;
1346 sym
->value
= ptr
->symval
;
1347 sym
->flags
= ptr
->flags
;
1350 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1352 fatal (_("Section %s not found"), ptr
->section
);
1356 sym
->section
= bfd_abs_section_ptr
;
1360 /* Choose which symbol entries to copy; put the result in OSYMS.
1361 We don't copy in place, because that confuses the relocs.
1362 Return the number of symbols to print. */
1365 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1366 asymbol
**isyms
, long symcount
)
1368 asymbol
**from
= isyms
, **to
= osyms
;
1369 long src_count
= 0, dst_count
= 0;
1370 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1372 for (; src_count
< symcount
; src_count
++)
1374 asymbol
*sym
= from
[src_count
];
1375 flagword flags
= sym
->flags
;
1376 char *name
= (char *) bfd_asymbol_name (sym
);
1378 bfd_boolean used_in_reloc
= FALSE
;
1379 bfd_boolean undefined
;
1380 bfd_boolean rem_leading_char
;
1381 bfd_boolean add_leading_char
;
1383 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1387 struct addsym_node
*ptr
;
1389 if (need_sym_before (&ptr
, name
))
1390 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1393 if (redefine_sym_list
)
1395 char *old_name
, *new_name
;
1397 old_name
= (char *) bfd_asymbol_name (sym
);
1398 new_name
= (char *) lookup_sym_redefinition (old_name
);
1399 bfd_asymbol_name (sym
) = new_name
;
1403 /* Check if we will remove the current leading character. */
1405 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1406 && (change_leading_char
1407 || (remove_leading_char
1408 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1410 || bfd_is_com_section (bfd_get_section (sym
)))));
1412 /* Check if we will add a new leading character. */
1415 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1416 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1417 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1419 /* Short circuit for change_leading_char if we can do it in-place. */
1420 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1422 name
[0] = bfd_get_symbol_leading_char (obfd
);
1423 bfd_asymbol_name (sym
) = name
;
1424 rem_leading_char
= FALSE
;
1425 add_leading_char
= FALSE
;
1428 /* Remove leading char. */
1429 if (rem_leading_char
)
1430 bfd_asymbol_name (sym
) = ++name
;
1432 /* Add new leading char and/or prefix. */
1433 if (add_leading_char
|| prefix_symbols_string
)
1437 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1438 + strlen (name
) + 1);
1439 if (add_leading_char
)
1440 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1442 if (prefix_symbols_string
)
1444 strcpy (ptr
, prefix_symbols_string
);
1445 ptr
+= strlen (prefix_symbols_string
);
1449 bfd_asymbol_name (sym
) = n
;
1453 if (strip_symbols
== STRIP_ALL
)
1455 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1456 || ((flags
& BSF_SECTION_SYM
) != 0
1457 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1461 used_in_reloc
= TRUE
;
1463 else if (relocatable
/* Relocatable file. */
1464 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1465 || bfd_is_com_section (bfd_get_section (sym
))))
1467 else if (bfd_decode_symclass (sym
) == 'I')
1468 /* Global symbols in $idata sections need to be retained
1469 even if relocatable is FALSE. External users of the
1470 library containing the $idata section may reference these
1473 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1474 || (flags
& BSF_WEAK
) != 0
1476 || bfd_is_com_section (bfd_get_section (sym
)))
1477 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1478 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1479 keep
= (strip_symbols
!= STRIP_DEBUG
1480 && strip_symbols
!= STRIP_UNNEEDED
1481 && ! convert_debugging
);
1482 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1483 /* COMDAT sections store special information in local
1484 symbols, so we cannot risk stripping any of them. */
1486 else /* Local symbol. */
1487 keep
= (strip_symbols
!= STRIP_UNNEEDED
1488 && (discard_locals
!= LOCALS_ALL
1489 && (discard_locals
!= LOCALS_START_L
1490 || ! bfd_is_local_label (abfd
, sym
))));
1492 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1494 /* There are multiple ways to set 'keep' above, but if it
1495 was the relocatable symbol case, then that's an error. */
1498 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1506 && !(flags
& BSF_KEEP
)
1507 && is_specified_symbol (name
, strip_unneeded_htab
))
1511 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1512 || is_specified_symbol (name
, keep_specific_htab
)))
1515 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1520 if ((flags
& BSF_GLOBAL
) != 0
1521 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1523 sym
->flags
&= ~ BSF_GLOBAL
;
1524 sym
->flags
|= BSF_WEAK
;
1528 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1529 && (is_specified_symbol (name
, localize_specific_htab
)
1530 || (htab_elements (keepglobal_specific_htab
) != 0
1531 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1532 || (localize_hidden
&& is_hidden_symbol (sym
))))
1534 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1535 sym
->flags
|= BSF_LOCAL
;
1539 && (flags
& BSF_LOCAL
)
1540 && is_specified_symbol (name
, globalize_specific_htab
))
1542 sym
->flags
&= ~ BSF_LOCAL
;
1543 sym
->flags
|= BSF_GLOBAL
;
1546 to
[dst_count
++] = sym
;
1551 struct addsym_node
*ptr
= add_sym_list
;
1553 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1557 if (strcmp (ptr
->othersym
, ""))
1558 fatal (_("'before=%s' not found"), ptr
->othersym
);
1561 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1567 to
[dst_count
] = NULL
;
1572 /* Find the redefined name of symbol SOURCE. */
1575 lookup_sym_redefinition (const char *source
)
1577 struct redefine_node
*list
;
1579 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1580 if (strcmp (source
, list
->source
) == 0)
1581 return list
->target
;
1586 /* Add a node to a symbol redefine list. */
1589 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1591 struct redefine_node
**p
;
1592 struct redefine_node
*list
;
1593 struct redefine_node
*new_node
;
1595 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1597 if (strcmp (source
, list
->source
) == 0)
1598 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1601 if (strcmp (target
, list
->target
) == 0)
1602 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1606 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1608 new_node
->source
= strdup (source
);
1609 new_node
->target
= strdup (target
);
1610 new_node
->next
= NULL
;
1615 /* Handle the --redefine-syms option. Read lines containing "old new"
1616 from the file, and add them to the symbol redefine list. */
1619 add_redefine_syms_file (const char *filename
)
1628 file
= fopen (filename
, "r");
1630 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1631 filename
, strerror (errno
));
1634 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1642 /* Collect the input symbol name. */
1643 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1651 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1659 /* Eat white space between the symbol names. */
1660 while (IS_WHITESPACE (c
))
1662 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1667 /* Collect the output symbol name. */
1669 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1677 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1685 /* Eat white space at end of line. */
1686 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1691 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1692 || c
== '\n' || c
== EOF
)
1695 /* Append the redefinition to the list. */
1697 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1708 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1710 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1711 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1714 /* Eat the rest of the line and finish it. */
1715 while (c
!= '\n' && c
!= EOF
)
1721 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1726 /* Copy unkown object file IBFD onto OBFD.
1727 Returns TRUE upon success, FALSE otherwise. */
1730 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1738 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1740 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1747 non_fatal (_("stat returns negative size for `%s'"),
1748 bfd_get_archive_filename (ibfd
));
1752 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1754 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1759 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1760 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1762 cbuf
= (char *) xmalloc (BUFSIZE
);
1764 while (ncopied
< size
)
1766 tocopy
= size
- ncopied
;
1767 if (tocopy
> BUFSIZE
)
1770 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1771 != (bfd_size_type
) tocopy
)
1773 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1778 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1779 != (bfd_size_type
) tocopy
)
1781 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1789 /* We should at least to be able to read it back when copying an
1790 unknown object in an archive. */
1791 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1796 /* Copy object file IBFD onto OBFD.
1797 Returns TRUE upon success, FALSE otherwise. */
1800 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1804 asection
**osections
= NULL
;
1805 asection
*gnu_debuglink_section
= NULL
;
1806 bfd_size_type
*gaps
= NULL
;
1807 bfd_size_type max_gap
= 0;
1810 enum bfd_architecture iarch
;
1814 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1815 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1816 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1818 /* PR 17636: Call non-fatal so that we return to our parent who
1819 may need to tidy temporary files. */
1820 non_fatal (_("Unable to change endianness of input file(s)"));
1824 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1826 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1830 if (ibfd
->sections
== NULL
)
1832 non_fatal (_("error: the input file '%s' has no sections"),
1833 bfd_get_archive_filename (ibfd
));
1837 if (ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
1839 if ((do_debug_sections
& compress
) != 0
1840 && do_debug_sections
!= compress
)
1842 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1843 bfd_get_archive_filename (ibfd
));
1847 if (do_elf_stt_common
)
1849 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
1850 bfd_get_archive_filename (ibfd
));
1856 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1857 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1858 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1867 start
= bfd_get_start_address (ibfd
);
1868 start
+= change_start
;
1871 /* Neither the start address nor the flags
1872 need to be set for a core file. */
1873 if (bfd_get_format (obfd
) != bfd_core
)
1877 flags
= bfd_get_file_flags (ibfd
);
1878 flags
|= bfd_flags_to_set
;
1879 flags
&= ~bfd_flags_to_clear
;
1880 flags
&= bfd_applicable_file_flags (obfd
);
1882 if (strip_symbols
== STRIP_ALL
)
1883 flags
&= ~HAS_RELOC
;
1885 if (!bfd_set_start_address (obfd
, start
)
1886 || !bfd_set_file_flags (obfd
, flags
))
1888 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1893 /* Copy architecture of input file to output file. */
1894 iarch
= bfd_get_arch (ibfd
);
1895 imach
= bfd_get_mach (ibfd
);
1898 if (bfd_get_arch_info (ibfd
) == NULL
1899 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1901 iarch
= input_arch
->arch
;
1902 imach
= input_arch
->mach
;
1905 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1906 bfd_get_archive_filename (ibfd
));
1908 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1909 && (ibfd
->target_defaulted
1910 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1912 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1913 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1914 bfd_get_archive_filename (ibfd
));
1916 non_fatal (_("Output file cannot represent architecture `%s'"),
1917 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1918 bfd_get_mach (ibfd
)));
1922 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1924 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1928 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1929 && bfd_pei_p (obfd
))
1931 /* Set up PE parameters. */
1932 pe_data_type
*pe
= pe_data (obfd
);
1934 /* Copy PE parameters before changing them. */
1935 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1936 && bfd_pei_p (ibfd
))
1937 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1939 if (pe_file_alignment
!= (bfd_vma
) -1)
1940 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1942 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1944 if (pe_heap_commit
!= (bfd_vma
) -1)
1945 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1947 if (pe_heap_reserve
!= (bfd_vma
) -1)
1948 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1950 if (pe_image_base
!= (bfd_vma
) -1)
1951 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1953 if (pe_section_alignment
!= (bfd_vma
) -1)
1954 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1956 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1958 if (pe_stack_commit
!= (bfd_vma
) -1)
1959 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1961 if (pe_stack_reserve
!= (bfd_vma
) -1)
1962 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1964 if (pe_subsystem
!= -1)
1965 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1967 if (pe_major_subsystem_version
!= -1)
1968 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1970 if (pe_minor_subsystem_version
!= -1)
1971 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1973 if (pe_file_alignment
> pe_section_alignment
)
1975 char file_alignment
[20], section_alignment
[20];
1977 sprintf_vma (file_alignment
, pe_file_alignment
);
1978 sprintf_vma (section_alignment
, pe_section_alignment
);
1979 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1981 file_alignment
, section_alignment
);
1988 if (osympp
!= isympp
)
1994 symsize
= bfd_get_symtab_upper_bound (ibfd
);
1997 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2001 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2002 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2005 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2008 /* PR 17512: file: d6323821
2009 If the symbol table could not be loaded do not pretend that we have
2010 any symbols. This trips us up later on when we load the relocs. */
2014 osympp
= isympp
= NULL
;
2017 /* BFD mandates that all output sections be created and sizes set before
2018 any output is done. Thus, we traverse all sections multiple times. */
2019 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2021 if (!extract_symbol
)
2022 setup_bfd_headers (ibfd
, obfd
);
2024 if (add_sections
!= NULL
)
2026 struct section_add
*padd
;
2027 struct section_list
*pset
;
2029 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2033 pset
= find_section_list (padd
->name
, FALSE
,
2034 SECTION_CONTEXT_SET_FLAGS
);
2036 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2038 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2040 /* bfd_make_section_with_flags() does not return very helpful
2041 error codes, so check for the most likely user error first. */
2042 if (bfd_get_section_by_name (obfd
, padd
->name
))
2044 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2045 _("can't add section '%s'"), padd
->name
);
2050 /* We use LINKER_CREATED here so that the backend hooks
2051 will create any special section type information,
2052 instead of presuming we know what we're doing merely
2053 because we set the flags. */
2054 padd
->section
= bfd_make_section_with_flags
2055 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2056 if (padd
->section
== NULL
)
2058 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2059 _("can't create section `%s'"),
2065 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
2067 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2071 pset
= find_section_list (padd
->name
, FALSE
,
2072 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2074 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
2076 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2080 pset
= find_section_list (padd
->name
, FALSE
,
2081 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2084 padd
->section
->lma
= pset
->lma_val
;
2086 if (! bfd_set_section_alignment
2087 (obfd
, padd
->section
,
2088 bfd_section_alignment (obfd
, padd
->section
)))
2090 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2097 if (update_sections
!= NULL
)
2099 struct section_add
*pupdate
;
2101 for (pupdate
= update_sections
;
2103 pupdate
= pupdate
->next
)
2107 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2108 if (pupdate
->section
== NULL
)
2110 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2114 osec
= pupdate
->section
->output_section
;
2115 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
2117 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2123 if (dump_sections
!= NULL
)
2125 struct section_add
* pdump
;
2127 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2131 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2134 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2135 _("can't dump section '%s' - it does not exist"),
2140 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
2142 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2143 _("can't dump section - it has no contents"));
2147 bfd_size_type size
= bfd_get_section_size (sec
);
2150 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2151 _("can't dump section - it is empty"));
2156 f
= fopen (pdump
->filename
, FOPEN_WB
);
2159 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2160 _("could not open section dump file"));
2164 bfd_byte
* contents
= xmalloc (size
);
2165 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
2167 if (fwrite (contents
, 1, size
, f
) != size
)
2169 non_fatal (_("error writing section contents to %s (error: %s)"),
2176 bfd_nonfatal_message (NULL
, ibfd
, sec
,
2177 _("could not retrieve section contents"));
2184 if (gnu_debuglink_filename
!= NULL
)
2186 /* PR 15125: Give a helpful warning message if
2187 the debuglink section already exists, and
2188 allow the rest of the copy to complete. */
2189 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2191 non_fatal (_("%s: debuglink section already exists"),
2192 bfd_get_filename (obfd
));
2193 gnu_debuglink_filename
= NULL
;
2197 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2198 (obfd
, gnu_debuglink_filename
);
2200 if (gnu_debuglink_section
== NULL
)
2202 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2203 _("cannot create debug link section `%s'"),
2204 gnu_debuglink_filename
);
2208 /* Special processing for PE format files. We
2209 have no way to distinguish PE from COFF here. */
2210 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2212 bfd_vma debuglink_vma
;
2213 asection
* highest_section
;
2216 /* The PE spec requires that all sections be adjacent and sorted
2217 in ascending order of VMA. It also specifies that debug
2218 sections should be last. This is despite the fact that debug
2219 sections are not loaded into memory and so in theory have no
2222 This means that the debuglink section must be given a non-zero
2223 VMA which makes it contiguous with other debug sections. So
2224 walk the current section list, find the section with the
2225 highest VMA and start the debuglink section after that one. */
2226 for (sec
= obfd
->sections
, highest_section
= NULL
;
2230 && (highest_section
== NULL
2231 || sec
->vma
> highest_section
->vma
))
2232 highest_section
= sec
;
2234 if (highest_section
)
2235 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2236 + highest_section
->size
,
2237 /* FIXME: We ought to be using
2238 COFF_PAGE_SIZE here or maybe
2239 bfd_get_section_alignment() (if it
2240 was set) but since this is for PE
2241 and we know the required alignment
2242 it is easier just to hard code it. */
2245 /* Umm, not sure what to do in this case. */
2246 debuglink_vma
= 0x1000;
2248 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2253 c
= bfd_count_sections (obfd
);
2255 && (gap_fill_set
|| pad_to_set
))
2259 /* We must fill in gaps between the sections and/or we must pad
2260 the last section to a specified address. We do this by
2261 grabbing a list of the sections, sorting them by VMA, and
2262 increasing the section sizes as required to fill the gaps.
2263 We write out the gap contents below. */
2265 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2267 bfd_map_over_sections (obfd
, get_sections
, &set
);
2269 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2271 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2272 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2276 for (i
= 0; i
< c
- 1; i
++)
2280 bfd_vma gap_start
, gap_stop
;
2282 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2283 if ((flags
& SEC_HAS_CONTENTS
) == 0
2284 || (flags
& SEC_LOAD
) == 0)
2287 size
= bfd_section_size (obfd
, osections
[i
]);
2288 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2289 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2290 if (gap_start
< gap_stop
)
2292 if (! bfd_set_section_size (obfd
, osections
[i
],
2293 size
+ (gap_stop
- gap_start
)))
2295 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2296 _("Can't fill gap after section"));
2300 gaps
[i
] = gap_stop
- gap_start
;
2301 if (max_gap
< gap_stop
- gap_start
)
2302 max_gap
= gap_stop
- gap_start
;
2312 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2313 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2314 if (lma
+ size
< pad_to
)
2316 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2319 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2320 _("can't add padding"));
2325 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2326 if (max_gap
< pad_to
- (lma
+ size
))
2327 max_gap
= pad_to
- (lma
+ size
);
2333 /* Symbol filtering must happen after the output sections
2334 have been created, but before their contents are set. */
2336 if (convert_debugging
)
2337 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2339 if (strip_symbols
== STRIP_DEBUG
2340 || strip_symbols
== STRIP_ALL
2341 || strip_symbols
== STRIP_UNNEEDED
2342 || strip_symbols
== STRIP_NONDEBUG
2343 || strip_symbols
== STRIP_DWO
2344 || strip_symbols
== STRIP_NONDWO
2345 || discard_locals
!= LOCALS_UNDEF
2347 || htab_elements (strip_specific_htab
) != 0
2348 || htab_elements (keep_specific_htab
) != 0
2349 || htab_elements (localize_specific_htab
) != 0
2350 || htab_elements (globalize_specific_htab
) != 0
2351 || htab_elements (keepglobal_specific_htab
) != 0
2352 || htab_elements (weaken_specific_htab
) != 0
2353 || prefix_symbols_string
2356 || convert_debugging
2357 || change_leading_char
2358 || remove_leading_char
2359 || redefine_sym_list
2363 /* Mark symbols used in output relocations so that they
2364 are kept, even if they are local labels or static symbols.
2366 Note we iterate over the input sections examining their
2367 relocations since the relocations for the output sections
2368 haven't been set yet. mark_symbols_used_in_relocations will
2369 ignore input sections which have no corresponding output
2371 if (strip_symbols
!= STRIP_ALL
)
2372 bfd_map_over_sections (ibfd
,
2373 mark_symbols_used_in_relocations
,
2375 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
2376 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2379 if (convert_debugging
&& dhandle
!= NULL
)
2381 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2388 bfd_set_symtab (obfd
, osympp
, symcount
);
2390 /* This has to happen before section positions are set. */
2391 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2393 /* This has to happen after the symbol table has been set. */
2394 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2396 if (add_sections
!= NULL
)
2398 struct section_add
*padd
;
2400 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2402 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2405 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2411 if (update_sections
!= NULL
)
2413 struct section_add
*pupdate
;
2415 for (pupdate
= update_sections
;
2417 pupdate
= pupdate
->next
)
2421 osec
= pupdate
->section
->output_section
;
2422 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2425 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2431 if (gnu_debuglink_filename
!= NULL
)
2433 if (! bfd_fill_in_gnu_debuglink_section
2434 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2436 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2437 _("cannot fill debug link section `%s'"),
2438 gnu_debuglink_filename
);
2443 if (gap_fill_set
|| pad_to_set
)
2447 /* Fill in the gaps. */
2450 buf
= (bfd_byte
*) xmalloc (max_gap
);
2451 memset (buf
, gap_fill
, max_gap
);
2453 c
= bfd_count_sections (obfd
);
2454 for (i
= 0; i
< c
; i
++)
2462 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2473 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2476 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2487 /* Allow the BFD backend to copy any private data it understands
2488 from the input BFD to the output BFD. This is done last to
2489 permit the routine to look at the filtered symbol table, which is
2490 important for the ECOFF code at least. */
2491 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2493 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2494 _("error copying private BFD data"));
2498 /* Switch to the alternate machine code. We have to do this at the
2499 very end, because we only initialize the header when we create
2500 the first section. */
2501 if (use_alt_mach_code
!= 0)
2503 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2505 non_fatal (_("this target does not support %lu alternative machine codes"),
2507 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2509 non_fatal (_("treating that number as an absolute e_machine value instead"));
2510 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2513 non_fatal (_("ignoring the alternative value"));
2520 /* Read each archive element in turn from IBFD, copy the
2521 contents to temp file, and keep the temp file handle.
2522 If 'force_output_target' is TRUE then make sure that
2523 all elements in the new archive are of the type
2527 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2528 bfd_boolean force_output_target
,
2529 const bfd_arch_info_type
*input_arch
)
2533 struct name_list
*next
;
2537 bfd
**ptr
= &obfd
->archive_head
;
2540 const char *filename
;
2542 /* Make a temp directory to hold the contents. */
2543 dir
= make_tempdir (bfd_get_filename (obfd
));
2545 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2548 if (strip_symbols
== STRIP_ALL
)
2549 obfd
->has_armap
= FALSE
;
2551 obfd
->has_armap
= ibfd
->has_armap
;
2552 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2555 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2559 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2561 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2564 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2565 goto cleanup_and_exit
;
2568 while (!status
&& this_element
!= NULL
)
2574 int stat_status
= 0;
2575 bfd_boolean del
= TRUE
;
2576 bfd_boolean ok_object
;
2578 /* PR binutils/17533: Do not allow directory traversal
2579 outside of the current directory tree by archive members. */
2580 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2582 non_fatal (_("illegal pathname found in archive member: %s"),
2583 bfd_get_filename (this_element
));
2585 goto cleanup_and_exit
;
2588 /* Create an output file for this member. */
2589 output_name
= concat (dir
, "/",
2590 bfd_get_filename (this_element
), (char *) 0);
2592 /* If the file already exists, make another temp dir. */
2593 if (stat (output_name
, &buf
) >= 0)
2595 output_name
= make_tempdir (output_name
);
2596 if (output_name
== NULL
)
2598 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2601 goto cleanup_and_exit
;
2604 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2605 l
->name
= output_name
;
2609 output_name
= concat (output_name
, "/",
2610 bfd_get_filename (this_element
), (char *) 0);
2615 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2617 if (stat_status
!= 0)
2618 non_fatal (_("internal stat error on %s"),
2619 bfd_get_filename (this_element
));
2622 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2623 l
->name
= output_name
;
2628 ok_object
= bfd_check_format (this_element
, bfd_object
);
2630 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2631 _("Unable to recognise the format of file"));
2633 /* PR binutils/3110: Cope with archives
2634 containing multiple target types. */
2635 if (force_output_target
|| !ok_object
)
2636 output_bfd
= bfd_openw (output_name
, output_target
);
2638 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2640 if (output_bfd
== NULL
)
2642 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2644 goto cleanup_and_exit
;
2649 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2651 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2652 /* Try again as an unknown object file. */
2654 else if (!bfd_close (output_bfd
))
2656 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2657 /* Error in new object file. Don't change archive. */
2664 del
= !copy_unknown_object (this_element
, output_bfd
);
2665 if (!bfd_close_all_done (output_bfd
))
2667 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2668 /* Error in new object file. Don't change archive. */
2675 unlink (output_name
);
2680 if (preserve_dates
&& stat_status
== 0)
2681 set_times (output_name
, &buf
);
2683 /* Open the newly output file and attach to our list. */
2684 output_bfd
= bfd_openr (output_name
, output_target
);
2686 l
->obfd
= output_bfd
;
2689 ptr
= &output_bfd
->archive_next
;
2691 last_element
= this_element
;
2693 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2695 bfd_close (last_element
);
2700 filename
= bfd_get_filename (obfd
);
2701 if (!bfd_close (obfd
))
2704 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2707 filename
= bfd_get_filename (ibfd
);
2708 if (!bfd_close (ibfd
))
2711 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2715 /* Delete all the files that we opened. */
2716 for (l
= list
; l
!= NULL
; l
= l
->next
)
2718 if (l
->obfd
== NULL
)
2722 bfd_close (l
->obfd
);
2731 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2733 /* This is only relevant to Coff targets. */
2734 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2737 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2738 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2739 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2743 /* The top-level control. */
2746 copy_file (const char *input_filename
, const char *output_filename
,
2747 const char *input_target
, const char *output_target
,
2748 const bfd_arch_info_type
*input_arch
)
2751 char **obj_matching
;
2752 char **core_matching
;
2753 off_t size
= get_file_size (input_filename
);
2758 non_fatal (_("error: the input file '%s' is empty"),
2764 /* To allow us to do "strip *" without dying on the first
2765 non-object file, failures are nonfatal. */
2766 ibfd
= bfd_openr (input_filename
, input_target
);
2769 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2774 switch (do_debug_sections
)
2778 case compress_gnu_zlib
:
2779 case compress_gabi_zlib
:
2780 ibfd
->flags
|= BFD_COMPRESS
;
2781 /* Don't check if input is ELF here since this information is
2782 only available after bfd_check_format_matches is called. */
2783 if (do_debug_sections
!= compress_gnu_zlib
)
2784 ibfd
->flags
|= BFD_COMPRESS_GABI
;
2787 ibfd
->flags
|= BFD_DECOMPRESS
;
2793 switch (do_elf_stt_common
)
2795 case elf_stt_common
:
2796 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
2799 case no_elf_stt_common
:
2800 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
2806 if (bfd_check_format (ibfd
, bfd_archive
))
2808 bfd_boolean force_output_target
;
2811 /* bfd_get_target does not return the correct value until
2812 bfd_check_format succeeds. */
2813 if (output_target
== NULL
)
2815 output_target
= bfd_get_target (ibfd
);
2816 force_output_target
= FALSE
;
2819 force_output_target
= TRUE
;
2821 obfd
= bfd_openw (output_filename
, output_target
);
2824 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2828 /* This is a no-op on non-Coff targets. */
2829 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2831 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2833 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2838 /* bfd_get_target does not return the correct value until
2839 bfd_check_format succeeds. */
2840 if (output_target
== NULL
)
2841 output_target
= bfd_get_target (ibfd
);
2843 obfd
= bfd_openw (output_filename
, output_target
);
2846 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2850 /* This is a no-op on non-Coff targets. */
2851 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2853 if (! copy_object (ibfd
, obfd
, input_arch
))
2856 /* PR 17512: file: 0f15796a.
2857 If the file could not be copied it may not be in a writeable
2858 state. So use bfd_close_all_done to avoid the possibility of
2859 writing uninitialised data into the file. */
2860 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2863 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2867 if (!bfd_close (ibfd
))
2870 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2876 bfd_error_type obj_error
= bfd_get_error ();
2877 bfd_error_type core_error
;
2879 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2881 /* This probably can't happen.. */
2882 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2883 free (obj_matching
);
2887 core_error
= bfd_get_error ();
2888 /* Report the object error in preference to the core error. */
2889 if (obj_error
!= core_error
)
2890 bfd_set_error (obj_error
);
2892 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2894 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2896 list_matching_formats (obj_matching
);
2897 free (obj_matching
);
2899 if (core_error
== bfd_error_file_ambiguously_recognized
)
2901 list_matching_formats (core_matching
);
2902 free (core_matching
);
2909 /* Add a name to the section renaming list. */
2912 add_section_rename (const char * old_name
, const char * new_name
,
2915 section_rename
* srename
;
2917 /* Check for conflicts first. */
2918 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2919 if (strcmp (srename
->old_name
, old_name
) == 0)
2921 /* Silently ignore duplicate definitions. */
2922 if (strcmp (srename
->new_name
, new_name
) == 0
2923 && srename
->flags
== flags
)
2926 fatal (_("Multiple renames of section %s"), old_name
);
2929 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2931 srename
->old_name
= old_name
;
2932 srename
->new_name
= new_name
;
2933 srename
->flags
= flags
;
2934 srename
->next
= section_rename_list
;
2936 section_rename_list
= srename
;
2939 /* Check the section rename list for a new name of the input section
2940 ISECTION. Return the new name if one is found.
2941 Also set RETURNED_FLAGS to the flags to be used for this section. */
2944 find_section_rename (bfd
* ibfd ATTRIBUTE_UNUSED
, sec_ptr isection
,
2945 flagword
* returned_flags
)
2947 const char * old_name
= bfd_section_name (ibfd
, isection
);
2948 section_rename
* srename
;
2950 /* Default to using the flags of the input section. */
2951 * returned_flags
= bfd_get_section_flags (ibfd
, isection
);
2953 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2954 if (strcmp (srename
->old_name
, old_name
) == 0)
2956 if (srename
->flags
!= (flagword
) -1)
2957 * returned_flags
= srename
->flags
;
2959 return srename
->new_name
;
2965 /* Once each of the sections is copied, we may still need to do some
2966 finalization work for private section headers. Do that here. */
2969 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
2971 /* Allow the BFD backend to copy any private data it understands
2972 from the input section to the output section. */
2973 if (! bfd_copy_private_header_data (ibfd
, obfd
))
2976 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2977 _("error in private header data"));
2981 /* All went well. */
2985 /* Create a section in OBFD with the same
2986 name and attributes as ISECTION in IBFD. */
2989 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2991 bfd
*obfd
= (bfd
*) obfdarg
;
2992 struct section_list
*p
;
3000 char *prefix
= NULL
;
3001 bfd_boolean make_nobits
;
3003 if (is_strip_section (ibfd
, isection
))
3006 /* Get the, possibly new, name of the output section. */
3007 name
= find_section_rename (ibfd
, isection
, & flags
);
3009 /* Prefix sections. */
3010 if ((prefix_alloc_sections_string
)
3011 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
3012 prefix
= prefix_alloc_sections_string
;
3013 else if (prefix_sections_string
)
3014 prefix
= prefix_sections_string
;
3020 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3026 make_nobits
= FALSE
;
3028 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3029 SECTION_CONTEXT_SET_FLAGS
);
3031 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3032 else if (strip_symbols
== STRIP_NONDEBUG
3033 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3034 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3036 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3037 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3041 /* Twiddle the input section flags so that it seems to
3042 elf.c:copy_private_bfd_data that section flags have not
3043 changed between input and output sections. This hack
3044 prevents wholesale rewriting of the program headers. */
3045 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3049 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3051 if (osection
== NULL
)
3053 err
= _("failed to create output section");
3058 elf_section_type (osection
) = SHT_NOBITS
;
3060 size
= bfd_section_size (ibfd
, isection
);
3061 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3063 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3064 else if (extract_symbol
)
3066 if (! bfd_set_section_size (obfd
, osection
, size
))
3068 err
= _("failed to set size");
3072 vma
= bfd_section_vma (ibfd
, isection
);
3073 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3074 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
3077 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
3083 vma
+= change_section_address
;
3085 if (! bfd_set_section_vma (obfd
, osection
, vma
))
3087 err
= _("failed to set vma");
3091 lma
= isection
->lma
;
3092 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
3093 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
3096 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
3102 lma
+= change_section_address
;
3104 osection
->lma
= lma
;
3106 /* FIXME: This is probably not enough. If we change the LMA we
3107 may have to recompute the header for the file as well. */
3108 if (!bfd_set_section_alignment (obfd
,
3110 bfd_section_alignment (ibfd
, isection
)))
3112 err
= _("failed to set alignment");
3116 /* Copy merge entity size. */
3117 osection
->entsize
= isection
->entsize
;
3119 /* Copy compress status. */
3120 osection
->compress_status
= isection
->compress_status
;
3122 /* This used to be mangle_section; we do here to avoid using
3123 bfd_get_section_by_name since some formats allow multiple
3124 sections with the same name. */
3125 isection
->output_section
= osection
;
3126 isection
->output_offset
= 0;
3128 if ((isection
->flags
& SEC_GROUP
) != 0)
3130 asymbol
*gsym
= group_signature (isection
);
3134 gsym
->flags
|= BSF_KEEP
;
3135 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
3136 elf_group_id (isection
) = gsym
;
3140 /* Allow the BFD backend to copy any private data it understands
3141 from the input section to the output section. */
3142 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
3144 err
= _("failed to copy private data");
3148 /* All went well. */
3153 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
3156 /* Return TRUE if input section ISECTION should be skipped. */
3159 skip_section (bfd
*ibfd
, sec_ptr isection
)
3165 /* If we have already failed earlier on,
3166 do not keep on generating complaints now. */
3173 if (is_strip_section (ibfd
, isection
))
3176 if (is_update_section (ibfd
, isection
))
3179 flags
= bfd_get_section_flags (ibfd
, isection
);
3180 if ((flags
& SEC_GROUP
) != 0)
3183 osection
= isection
->output_section
;
3184 size
= bfd_get_section_size (isection
);
3186 if (size
== 0 || osection
== 0)
3192 /* Copy relocations in input section ISECTION of IBFD to an output
3193 section with the same name in OBFDARG. If stripping then don't
3194 copy any relocation info. */
3197 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3199 bfd
*obfd
= (bfd
*) obfdarg
;
3205 if (skip_section (ibfd
, isection
))
3208 osection
= isection
->output_section
;
3210 /* Core files and DWO files do not need to be relocated. */
3211 if (bfd_get_format (obfd
) == bfd_core
|| strip_symbols
== STRIP_NONDWO
)
3215 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3219 /* Do not complain if the target does not support relocations. */
3220 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3225 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3233 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3234 osection
->flags
&= ~SEC_RELOC
;
3238 relpp
= (arelent
**) xmalloc (relsize
);
3239 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3243 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3244 _("relocation count is negative"));
3248 if (strip_symbols
== STRIP_ALL
)
3250 /* Remove relocations which are not in
3251 keep_strip_specific_list. */
3252 arelent
**temp_relpp
;
3253 long temp_relcount
= 0;
3256 temp_relpp
= (arelent
**) xmalloc (relsize
);
3257 for (i
= 0; i
< relcount
; i
++)
3259 /* PR 17512: file: 9e907e0c. */
3260 if (relpp
[i
]->sym_ptr_ptr
3262 && * relpp
[i
]->sym_ptr_ptr
)
3263 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3264 keep_specific_htab
))
3265 temp_relpp
[temp_relcount
++] = relpp
[i
];
3267 relcount
= temp_relcount
;
3272 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3275 osection
->flags
&= ~SEC_RELOC
;
3281 /* Copy the data of input section ISECTION of IBFD
3282 to an output section with the same name in OBFD. */
3285 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3287 bfd
*obfd
= (bfd
*) obfdarg
;
3288 struct section_list
*p
;
3292 if (skip_section (ibfd
, isection
))
3295 osection
= isection
->output_section
;
3296 /* The output SHF_COMPRESSED section size is different from input if
3297 ELF classes of input and output aren't the same. We can't use
3298 the output section size since --interleave will shrink the output
3299 section. Size will be updated if the section is converted. */
3300 size
= bfd_get_section_size (isection
);
3302 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3303 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3305 bfd_byte
*memhunk
= NULL
;
3307 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3308 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3312 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3318 /* We don't handle leftover bytes (too many possible behaviors,
3319 and we don't know what the user wants). The section length
3320 must be a multiple of the number of bytes to swap. */
3321 if ((size
% reverse_bytes
) == 0)
3326 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3327 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3329 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3332 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3333 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3337 /* User must pad the section up in order to do this. */
3338 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3339 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3344 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3345 char *from
= (char *) memhunk
+ copy_byte
;
3346 char *to
= (char *) memhunk
;
3347 char *end
= (char *) memhunk
+ size
;
3350 for (; from
< end
; from
+= interleave
)
3351 for (i
= 0; i
< copy_width
; i
++)
3353 if (&from
[i
] >= end
)
3358 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3359 osection
->lma
/= interleave
;
3362 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3365 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3370 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3371 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3372 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3374 void *memhunk
= xmalloc (size
);
3376 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3377 flag--they can just remove the section entirely and add it
3378 back again. However, we do permit them to turn on the
3379 SEC_HAS_CONTENTS flag, and take it to mean that the section
3380 contents should be zeroed out. */
3382 memset (memhunk
, 0, size
);
3383 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3386 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3393 /* Get all the sections. This is used when --gap-fill or --pad-to is
3397 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3399 asection
***secppp
= (asection
***) secppparg
;
3401 **secppp
= osection
;
3405 /* Sort sections by VMA. This is called via qsort, and is used when
3406 --gap-fill or --pad-to is used. We force non loadable or empty
3407 sections to the front, where they are easier to ignore. */
3410 compare_section_lma (const void *arg1
, const void *arg2
)
3412 const asection
*const *sec1
= (const asection
* const *) arg1
;
3413 const asection
*const *sec2
= (const asection
* const *) arg2
;
3414 flagword flags1
, flags2
;
3416 /* Sort non loadable sections to the front. */
3417 flags1
= (*sec1
)->flags
;
3418 flags2
= (*sec2
)->flags
;
3419 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3420 || (flags1
& SEC_LOAD
) == 0)
3422 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3423 && (flags2
& SEC_LOAD
) != 0)
3428 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3429 || (flags2
& SEC_LOAD
) == 0)
3433 /* Sort sections by LMA. */
3434 if ((*sec1
)->lma
> (*sec2
)->lma
)
3436 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3439 /* Sort sections with the same LMA by size. */
3440 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3442 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3448 /* Mark all the symbols which will be used in output relocations with
3449 the BSF_KEEP flag so that those symbols will not be stripped.
3451 Ignore relocations which will not appear in the output file. */
3454 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3456 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3461 /* Ignore an input section with no corresponding output section. */
3462 if (isection
->output_section
== NULL
)
3465 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3468 /* Do not complain if the target does not support relocations. */
3469 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3471 bfd_fatal (bfd_get_filename (ibfd
));
3477 relpp
= (arelent
**) xmalloc (relsize
);
3478 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3480 bfd_fatal (bfd_get_filename (ibfd
));
3482 /* Examine each symbol used in a relocation. If it's not one of the
3483 special bfd section symbols, then mark it with BSF_KEEP. */
3484 for (i
= 0; i
< relcount
; i
++)
3486 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3487 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3488 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3489 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3496 /* Write out debugging information. */
3499 write_debugging_info (bfd
*obfd
, void *dhandle
,
3500 long *symcountp ATTRIBUTE_UNUSED
,
3501 asymbol
***symppp ATTRIBUTE_UNUSED
)
3503 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3504 return write_ieee_debugging_info (obfd
, dhandle
);
3506 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3507 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3509 bfd_byte
*syms
, *strings
;
3510 bfd_size_type symsize
, stringsize
;
3511 asection
*stabsec
, *stabstrsec
;
3514 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3519 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3520 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3521 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3523 || stabstrsec
== NULL
3524 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3525 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3526 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3527 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3529 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3530 _("can't create debugging section"));
3534 /* We can get away with setting the section contents now because
3535 the next thing the caller is going to do is copy over the
3536 real sections. We may someday have to split the contents
3537 setting out of this function. */
3538 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3539 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3542 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3543 _("can't set debugging section contents"));
3550 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3551 _("don't know how to write debugging information for %s"),
3552 bfd_get_target (obfd
));
3556 /* If neither -D nor -U was specified explicitly,
3557 then use the configured default. */
3559 default_deterministic (void)
3561 if (deterministic
< 0)
3562 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3566 strip_main (int argc
, char *argv
[])
3568 char *input_target
= NULL
;
3569 char *output_target
= NULL
;
3570 bfd_boolean show_version
= FALSE
;
3571 bfd_boolean formats_info
= FALSE
;
3574 char *output_file
= NULL
;
3576 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3577 strip_options
, (int *) 0)) != EOF
)
3582 input_target
= optarg
;
3585 output_target
= optarg
;
3588 input_target
= output_target
= optarg
;
3591 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3592 sections_removed
= TRUE
;
3595 strip_symbols
= STRIP_ALL
;
3599 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3600 strip_symbols
= STRIP_DEBUG
;
3602 case OPTION_STRIP_DWO
:
3603 strip_symbols
= STRIP_DWO
;
3605 case OPTION_STRIP_UNNEEDED
:
3606 strip_symbols
= STRIP_UNNEEDED
;
3609 add_specific_symbol (optarg
, keep_specific_htab
);
3612 add_specific_symbol (optarg
, strip_specific_htab
);
3615 output_file
= optarg
;
3618 preserve_dates
= TRUE
;
3621 deterministic
= TRUE
;
3624 deterministic
= FALSE
;
3627 discard_locals
= LOCALS_ALL
;
3630 discard_locals
= LOCALS_START_L
;
3636 show_version
= TRUE
;
3638 case OPTION_FORMATS_INFO
:
3639 formats_info
= TRUE
;
3641 case OPTION_ONLY_KEEP_DEBUG
:
3642 strip_symbols
= STRIP_NONDEBUG
;
3644 case OPTION_KEEP_FILE_SYMBOLS
:
3645 keep_file_symbols
= 1;
3648 /* We've been given a long option. */
3655 strip_usage (stdout
, 0);
3657 strip_usage (stderr
, 1);
3668 print_version ("strip");
3670 default_deterministic ();
3672 /* Default is to strip all symbols. */
3673 if (strip_symbols
== STRIP_UNDEF
3674 && discard_locals
== LOCALS_UNDEF
3675 && htab_elements (strip_specific_htab
) == 0)
3676 strip_symbols
= STRIP_ALL
;
3678 if (output_target
== NULL
)
3679 output_target
= input_target
;
3683 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3684 strip_usage (stderr
, 1);
3686 for (; i
< argc
; i
++)
3688 int hold_status
= status
;
3689 struct stat statbuf
;
3692 if (get_file_size (argv
[i
]) < 1)
3699 /* No need to check the return value of stat().
3700 It has already been checked in get_file_size(). */
3701 stat (argv
[i
], &statbuf
);
3703 if (output_file
== NULL
3704 || filename_cmp (argv
[i
], output_file
) == 0)
3705 tmpname
= make_tempname (argv
[i
]);
3707 tmpname
= output_file
;
3709 if (tmpname
== NULL
)
3711 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3712 _("could not create temporary file to hold stripped copy"));
3718 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3722 set_times (tmpname
, &statbuf
);
3723 if (output_file
!= tmpname
)
3724 status
= (smart_rename (tmpname
,
3725 output_file
? output_file
: argv
[i
],
3726 preserve_dates
) != 0);
3728 status
= hold_status
;
3731 unlink_if_ordinary (tmpname
);
3732 if (output_file
!= tmpname
)
3739 /* Set up PE subsystem. */
3742 set_pe_subsystem (const char *s
)
3744 const char *version
, *subsystem
;
3754 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3755 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3756 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3757 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3758 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3759 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3760 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3761 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3762 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3763 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3769 /* Check for the presence of a version number. */
3770 version
= strchr (s
, ':');
3771 if (version
== NULL
)
3775 int len
= version
- s
;
3779 version
= copy
+ 1 + len
;
3780 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3782 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3784 non_fatal (_("%s: bad version in PE subsystem"), s
);
3787 /* Check for numeric subsystem. */
3788 value
= (short) strtol (subsystem
, ©
, 0);
3791 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3792 if (v
[i
].value
== value
)
3794 pe_subsystem
= value
;
3795 set_def
= v
[i
].set_def
;
3801 /* Search for subsystem by name. */
3802 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3803 if (strcmp (subsystem
, v
[i
].name
) == 0)
3805 pe_subsystem
= v
[i
].value
;
3806 set_def
= v
[i
].set_def
;
3814 fatal (_("unknown PE subsystem: %s"), s
);
3819 if (pe_file_alignment
== (bfd_vma
) -1)
3820 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3821 if (pe_section_alignment
== (bfd_vma
) -1)
3822 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3826 free ((char *) subsystem
);
3829 /* Convert EFI target to PEI target. */
3832 convert_efi_target (char *efi
)
3838 if (strcmp (efi
+ 4, "ia32") == 0)
3840 /* Change ia32 to i386. */
3845 else if (strcmp (efi
+ 4, "x86_64") == 0)
3847 /* Change x86_64 to x86-64. */
3852 /* Allocate and return a pointer to a struct section_add, initializing the
3853 structure using ARG, a string in the format "sectionname=filename".
3854 The returned structure will have its next pointer set to NEXT. The
3855 OPTION field is the name of the command line option currently being
3856 parsed, and is only used if an error needs to be reported. */
3858 static struct section_add
*
3859 init_section_add (const char *arg
,
3860 struct section_add
*next
,
3863 struct section_add
*pa
;
3866 s
= strchr (arg
, '=');
3868 fatal (_("bad format for %s"), option
);
3870 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3871 pa
->name
= xstrndup (arg
, s
- arg
);
3872 pa
->filename
= s
+ 1;
3874 pa
->contents
= NULL
;
3880 /* Load the file specified in PA, allocating memory to hold the file
3881 contents, and store a pointer to the allocated memory in the contents
3882 field of PA. The size field of PA is also updated. All errors call
3886 section_add_load_file (struct section_add
*pa
)
3891 /* We don't use get_file_size so that we can do
3892 --add-section .note.GNU_stack=/dev/null
3893 get_file_size doesn't work on /dev/null. */
3895 f
= fopen (pa
->filename
, FOPEN_RB
);
3897 fatal (_("cannot open: %s: %s"),
3898 pa
->filename
, strerror (errno
));
3902 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3910 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3913 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3915 fatal (_("%s: fread failed"), pa
->filename
);
3926 copy_main (int argc
, char *argv
[])
3928 char *input_filename
= NULL
;
3929 char *output_filename
= NULL
;
3931 char *input_target
= NULL
;
3932 char *output_target
= NULL
;
3933 bfd_boolean show_version
= FALSE
;
3934 bfd_boolean change_warn
= TRUE
;
3935 bfd_boolean formats_info
= FALSE
;
3937 struct stat statbuf
;
3938 const bfd_arch_info_type
*input_arch
= NULL
;
3940 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3941 copy_options
, (int *) 0)) != EOF
)
3946 copy_byte
= atoi (optarg
);
3948 fatal (_("byte number must be non-negative"));
3952 input_arch
= bfd_scan_arch (optarg
);
3953 if (input_arch
== NULL
)
3954 fatal (_("architecture %s unknown"), optarg
);
3960 interleave
= atoi (optarg
);
3962 fatal (_("interleave must be positive"));
3968 case OPTION_INTERLEAVE_WIDTH
:
3969 copy_width
= atoi (optarg
);
3971 fatal(_("interleave width must be positive"));
3975 case 's': /* "source" - 'I' is preferred */
3976 input_target
= optarg
;
3980 case 'd': /* "destination" - 'O' is preferred */
3981 output_target
= optarg
;
3985 input_target
= output_target
= optarg
;
3989 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
3990 sections_copied
= TRUE
;
3994 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3995 sections_removed
= TRUE
;
3999 strip_symbols
= STRIP_ALL
;
4003 strip_symbols
= STRIP_DEBUG
;
4006 case OPTION_STRIP_DWO
:
4007 strip_symbols
= STRIP_DWO
;
4010 case OPTION_STRIP_UNNEEDED
:
4011 strip_symbols
= STRIP_UNNEEDED
;
4014 case OPTION_ONLY_KEEP_DEBUG
:
4015 strip_symbols
= STRIP_NONDEBUG
;
4018 case OPTION_KEEP_FILE_SYMBOLS
:
4019 keep_file_symbols
= 1;
4022 case OPTION_ADD_GNU_DEBUGLINK
:
4023 long_section_names
= ENABLE
;
4024 gnu_debuglink_filename
= optarg
;
4028 add_specific_symbol (optarg
, keep_specific_htab
);
4032 add_specific_symbol (optarg
, strip_specific_htab
);
4035 case OPTION_STRIP_UNNEEDED_SYMBOL
:
4036 add_specific_symbol (optarg
, strip_unneeded_htab
);
4040 add_specific_symbol (optarg
, localize_specific_htab
);
4043 case OPTION_GLOBALIZE_SYMBOL
:
4044 add_specific_symbol (optarg
, globalize_specific_htab
);
4048 add_specific_symbol (optarg
, keepglobal_specific_htab
);
4052 add_specific_symbol (optarg
, weaken_specific_htab
);
4056 preserve_dates
= TRUE
;
4060 deterministic
= TRUE
;
4064 deterministic
= FALSE
;
4072 discard_locals
= LOCALS_ALL
;
4076 discard_locals
= LOCALS_START_L
;
4084 show_version
= TRUE
;
4087 case OPTION_FORMATS_INFO
:
4088 formats_info
= TRUE
;
4095 case OPTION_ADD_SECTION
:
4096 add_sections
= init_section_add (optarg
, add_sections
,
4098 section_add_load_file (add_sections
);
4101 case OPTION_UPDATE_SECTION
:
4102 update_sections
= init_section_add (optarg
, update_sections
,
4103 "--update-section");
4104 section_add_load_file (update_sections
);
4107 case OPTION_DUMP_SECTION
:
4108 dump_sections
= init_section_add (optarg
, dump_sections
,
4112 case OPTION_ADD_SYMBOL
:
4115 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
4117 newsym
->next
= NULL
;
4118 s
= strchr (optarg
, '=');
4120 fatal (_("bad format for %s"), "--add-symbol");
4121 t
= strchr (s
+ 1, ':');
4123 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
4126 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
4127 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
4131 newsym
->section
= NULL
;
4132 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
4136 t
= strchr (t
+ 1, ',');
4137 newsym
->othersym
= NULL
;
4139 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
4141 newsym
->flags
= BSF_GLOBAL
;
4143 /* Keep 'othersym' symbols at the front of the list. */
4144 if (newsym
->othersym
)
4146 newsym
->next
= add_sym_list
;
4148 add_sym_tail
= &newsym
->next
;
4149 add_sym_list
= newsym
;
4153 *add_sym_tail
= newsym
;
4154 add_sym_tail
= &newsym
->next
;
4160 case OPTION_CHANGE_START
:
4161 change_start
= parse_vma (optarg
, "--change-start");
4164 case OPTION_CHANGE_SECTION_ADDRESS
:
4165 case OPTION_CHANGE_SECTION_LMA
:
4166 case OPTION_CHANGE_SECTION_VMA
:
4168 struct section_list
* p
;
4169 unsigned int context
= 0;
4173 char *option
= NULL
;
4178 case OPTION_CHANGE_SECTION_ADDRESS
:
4179 option
= "--change-section-address";
4180 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
4182 case OPTION_CHANGE_SECTION_LMA
:
4183 option
= "--change-section-lma";
4184 context
= SECTION_CONTEXT_ALTER_LMA
;
4186 case OPTION_CHANGE_SECTION_VMA
:
4187 option
= "--change-section-vma";
4188 context
= SECTION_CONTEXT_ALTER_VMA
;
4192 s
= strchr (optarg
, '=');
4195 s
= strchr (optarg
, '+');
4198 s
= strchr (optarg
, '-');
4200 fatal (_("bad format for %s"), option
);
4205 /* Correct the context. */
4208 case OPTION_CHANGE_SECTION_ADDRESS
:
4209 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
4211 case OPTION_CHANGE_SECTION_LMA
:
4212 context
= SECTION_CONTEXT_SET_LMA
;
4214 case OPTION_CHANGE_SECTION_VMA
:
4215 context
= SECTION_CONTEXT_SET_VMA
;
4221 name
= (char *) xmalloc (len
+ 1);
4222 strncpy (name
, optarg
, len
);
4225 p
= find_section_list (name
, TRUE
, context
);
4227 val
= parse_vma (s
+ 1, option
);
4233 case OPTION_CHANGE_SECTION_ADDRESS
:
4237 case OPTION_CHANGE_SECTION_LMA
:
4241 case OPTION_CHANGE_SECTION_VMA
:
4248 case OPTION_CHANGE_ADDRESSES
:
4249 change_section_address
= parse_vma (optarg
, "--change-addresses");
4250 change_start
= change_section_address
;
4253 case OPTION_CHANGE_WARNINGS
:
4257 case OPTION_CHANGE_LEADING_CHAR
:
4258 change_leading_char
= TRUE
;
4261 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4264 if (strcasecmp (optarg
, "none") == 0)
4265 do_debug_sections
= decompress
;
4266 else if (strcasecmp (optarg
, "zlib") == 0)
4267 do_debug_sections
= compress_zlib
;
4268 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4269 do_debug_sections
= compress_gnu_zlib
;
4270 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4271 do_debug_sections
= compress_gabi_zlib
;
4273 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4277 do_debug_sections
= compress
;
4280 case OPTION_DEBUGGING
:
4281 convert_debugging
= TRUE
;
4284 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4285 do_debug_sections
= decompress
;
4288 case OPTION_ELF_STT_COMMON
:
4289 if (strcasecmp (optarg
, "yes") == 0)
4290 do_elf_stt_common
= elf_stt_common
;
4291 else if (strcasecmp (optarg
, "no") == 0)
4292 do_elf_stt_common
= no_elf_stt_common
;
4294 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4298 case OPTION_GAP_FILL
:
4300 bfd_vma gap_fill_vma
;
4302 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4303 gap_fill
= (bfd_byte
) gap_fill_vma
;
4304 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4308 sprintf_vma (buff
, gap_fill_vma
);
4310 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4313 gap_fill_set
= TRUE
;
4317 case OPTION_NO_CHANGE_WARNINGS
:
4318 change_warn
= FALSE
;
4322 pad_to
= parse_vma (optarg
, "--pad-to");
4326 case OPTION_REMOVE_LEADING_CHAR
:
4327 remove_leading_char
= TRUE
;
4330 case OPTION_REDEFINE_SYM
:
4332 /* Push this redefinition onto redefine_symbol_list. */
4336 const char *nextarg
;
4337 char *source
, *target
;
4339 s
= strchr (optarg
, '=');
4341 fatal (_("bad format for %s"), "--redefine-sym");
4344 source
= (char *) xmalloc (len
+ 1);
4345 strncpy (source
, optarg
, len
);
4349 len
= strlen (nextarg
);
4350 target
= (char *) xmalloc (len
+ 1);
4351 strcpy (target
, nextarg
);
4353 redefine_list_append ("--redefine-sym", source
, target
);
4360 case OPTION_REDEFINE_SYMS
:
4361 add_redefine_syms_file (optarg
);
4364 case OPTION_SET_SECTION_FLAGS
:
4366 struct section_list
*p
;
4371 s
= strchr (optarg
, '=');
4373 fatal (_("bad format for %s"), "--set-section-flags");
4376 name
= (char *) xmalloc (len
+ 1);
4377 strncpy (name
, optarg
, len
);
4380 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4382 p
->flags
= parse_flags (s
+ 1);
4386 case OPTION_RENAME_SECTION
:
4389 const char *eq
, *fl
;
4394 eq
= strchr (optarg
, '=');
4396 fatal (_("bad format for %s"), "--rename-section");
4400 fatal (_("bad format for %s"), "--rename-section");
4402 old_name
= (char *) xmalloc (len
+ 1);
4403 strncpy (old_name
, optarg
, len
);
4407 fl
= strchr (eq
, ',');
4410 flags
= parse_flags (fl
+ 1);
4420 fatal (_("bad format for %s"), "--rename-section");
4422 new_name
= (char *) xmalloc (len
+ 1);
4423 strncpy (new_name
, eq
, len
);
4426 add_section_rename (old_name
, new_name
, flags
);
4430 case OPTION_SET_START
:
4431 set_start
= parse_vma (optarg
, "--set-start");
4432 set_start_set
= TRUE
;
4435 case OPTION_SREC_LEN
:
4436 Chunk
= parse_vma (optarg
, "--srec-len");
4439 case OPTION_SREC_FORCES3
:
4443 case OPTION_STRIP_SYMBOLS
:
4444 add_specific_symbols (optarg
, strip_specific_htab
);
4447 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4448 add_specific_symbols (optarg
, strip_unneeded_htab
);
4451 case OPTION_KEEP_SYMBOLS
:
4452 add_specific_symbols (optarg
, keep_specific_htab
);
4455 case OPTION_LOCALIZE_HIDDEN
:
4456 localize_hidden
= TRUE
;
4459 case OPTION_LOCALIZE_SYMBOLS
:
4460 add_specific_symbols (optarg
, localize_specific_htab
);
4463 case OPTION_LONG_SECTION_NAMES
:
4464 if (!strcmp ("enable", optarg
))
4465 long_section_names
= ENABLE
;
4466 else if (!strcmp ("disable", optarg
))
4467 long_section_names
= DISABLE
;
4468 else if (!strcmp ("keep", optarg
))
4469 long_section_names
= KEEP
;
4471 fatal (_("unknown long section names option '%s'"), optarg
);
4474 case OPTION_GLOBALIZE_SYMBOLS
:
4475 add_specific_symbols (optarg
, globalize_specific_htab
);
4478 case OPTION_KEEPGLOBAL_SYMBOLS
:
4479 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4482 case OPTION_WEAKEN_SYMBOLS
:
4483 add_specific_symbols (optarg
, weaken_specific_htab
);
4486 case OPTION_ALT_MACH_CODE
:
4487 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4488 if (use_alt_mach_code
== 0)
4489 fatal (_("unable to parse alternative machine code"));
4492 case OPTION_PREFIX_SYMBOLS
:
4493 prefix_symbols_string
= optarg
;
4496 case OPTION_PREFIX_SECTIONS
:
4497 prefix_sections_string
= optarg
;
4500 case OPTION_PREFIX_ALLOC_SECTIONS
:
4501 prefix_alloc_sections_string
= optarg
;
4504 case OPTION_READONLY_TEXT
:
4505 bfd_flags_to_set
|= WP_TEXT
;
4506 bfd_flags_to_clear
&= ~WP_TEXT
;
4509 case OPTION_WRITABLE_TEXT
:
4510 bfd_flags_to_clear
|= WP_TEXT
;
4511 bfd_flags_to_set
&= ~WP_TEXT
;
4515 bfd_flags_to_set
|= D_PAGED
;
4516 bfd_flags_to_clear
&= ~D_PAGED
;
4520 bfd_flags_to_clear
|= D_PAGED
;
4521 bfd_flags_to_set
&= ~D_PAGED
;
4524 case OPTION_EXTRACT_DWO
:
4525 strip_symbols
= STRIP_NONDWO
;
4528 case OPTION_EXTRACT_SYMBOL
:
4529 extract_symbol
= TRUE
;
4532 case OPTION_REVERSE_BYTES
:
4534 int prev
= reverse_bytes
;
4536 reverse_bytes
= atoi (optarg
);
4537 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4538 fatal (_("number of bytes to reverse must be positive and even"));
4540 if (prev
&& prev
!= reverse_bytes
)
4541 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4546 case OPTION_FILE_ALIGNMENT
:
4547 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4553 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4555 || (*end
!= '.' && *end
!= '\0'))
4556 non_fatal (_("%s: invalid reserve value for --heap"),
4558 else if (*end
!= '\0')
4560 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4562 non_fatal (_("%s: invalid commit value for --heap"),
4568 case OPTION_IMAGE_BASE
:
4569 pe_image_base
= parse_vma (optarg
, "--image-base");
4572 case OPTION_SECTION_ALIGNMENT
:
4573 pe_section_alignment
= parse_vma (optarg
,
4574 "--section-alignment");
4577 case OPTION_SUBSYSTEM
:
4578 set_pe_subsystem (optarg
);
4584 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4586 || (*end
!= '.' && *end
!= '\0'))
4587 non_fatal (_("%s: invalid reserve value for --stack"),
4589 else if (*end
!= '\0')
4591 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4593 non_fatal (_("%s: invalid commit value for --stack"),
4600 /* We've been given a long option. */
4605 copy_usage (stdout
, 0);
4608 copy_usage (stderr
, 1);
4619 print_version ("objcopy");
4621 if (interleave
&& copy_byte
== -1)
4622 fatal (_("interleave start byte must be set with --byte"));
4624 if (copy_byte
>= interleave
)
4625 fatal (_("byte number must be less than interleave"));
4627 if (copy_width
> interleave
- copy_byte
)
4628 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4630 if (optind
== argc
|| optind
+ 2 < argc
)
4631 copy_usage (stderr
, 1);
4633 input_filename
= argv
[optind
];
4634 if (optind
+ 1 < argc
)
4635 output_filename
= argv
[optind
+ 1];
4637 default_deterministic ();
4639 /* Default is to strip no symbols. */
4640 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4641 strip_symbols
= STRIP_NONE
;
4643 if (output_target
== NULL
)
4644 output_target
= input_target
;
4646 /* Convert input EFI target to PEI target. */
4647 if (input_target
!= NULL
4648 && strncmp (input_target
, "efi-", 4) == 0)
4652 efi
= xstrdup (output_target
+ 4);
4653 if (strncmp (efi
, "bsdrv-", 6) == 0
4654 || strncmp (efi
, "rtdrv-", 6) == 0)
4656 else if (strncmp (efi
, "app-", 4) != 0)
4657 fatal (_("unknown input EFI target: %s"), input_target
);
4660 convert_efi_target (efi
);
4663 /* Convert output EFI target to PEI target. */
4664 if (output_target
!= NULL
4665 && strncmp (output_target
, "efi-", 4) == 0)
4669 efi
= xstrdup (output_target
+ 4);
4670 if (strncmp (efi
, "app-", 4) == 0)
4672 if (pe_subsystem
== -1)
4673 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4675 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4677 if (pe_subsystem
== -1)
4678 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4681 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4683 if (pe_subsystem
== -1)
4684 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4688 fatal (_("unknown output EFI target: %s"), output_target
);
4690 if (pe_file_alignment
== (bfd_vma
) -1)
4691 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4692 if (pe_section_alignment
== (bfd_vma
) -1)
4693 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4695 output_target
= efi
;
4696 convert_efi_target (efi
);
4700 if (stat (input_filename
, & statbuf
) < 0)
4701 fatal (_("warning: could not locate '%s'. System error message: %s"),
4702 input_filename
, strerror (errno
));
4704 /* If there is no destination file, or the source and destination files
4705 are the same, then create a temp and rename the result into the input. */
4706 if (output_filename
== NULL
4707 || filename_cmp (input_filename
, output_filename
) == 0)
4708 tmpname
= make_tempname (input_filename
);
4710 tmpname
= output_filename
;
4712 if (tmpname
== NULL
)
4713 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4714 input_filename
, strerror (errno
));
4716 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4720 set_times (tmpname
, &statbuf
);
4721 if (tmpname
!= output_filename
)
4722 status
= (smart_rename (tmpname
, input_filename
,
4723 preserve_dates
) != 0);
4726 unlink_if_ordinary (tmpname
);
4730 struct section_list
*p
;
4732 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4736 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4740 sprintf_vma (buff
, p
->vma_val
);
4742 /* xgettext:c-format */
4743 non_fatal (_("%s %s%c0x%s never used"),
4744 "--change-section-vma",
4746 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4750 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4754 sprintf_vma (buff
, p
->lma_val
);
4756 /* xgettext:c-format */
4757 non_fatal (_("%s %s%c0x%s never used"),
4758 "--change-section-lma",
4760 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4771 main (int argc
, char *argv
[])
4773 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4774 setlocale (LC_MESSAGES
, "");
4776 #if defined (HAVE_SETLOCALE)
4777 setlocale (LC_CTYPE
, "");
4779 bindtextdomain (PACKAGE
, LOCALEDIR
);
4780 textdomain (PACKAGE
);
4782 program_name
= argv
[0];
4783 xmalloc_set_program_name (program_name
);
4785 START_PROGRESS (program_name
, 0);
4787 expandargv (&argc
, &argv
);
4789 strip_symbols
= STRIP_UNDEF
;
4790 discard_locals
= LOCALS_UNDEF
;
4793 set_default_bfd_target ();
4797 int i
= strlen (program_name
);
4798 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4799 /* Drop the .exe suffix, if any. */
4800 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4803 program_name
[i
] = '\0';
4806 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4809 create_symbol_htabs ();
4812 bfd_set_error_program_name (argv
[0]);
4815 strip_main (argc
, argv
);
4817 copy_main (argc
, argv
);
4819 END_PROGRESS (program_name
);