1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2015 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
;
65 typedef struct section_rename
67 const char * old_name
;
68 const char * new_name
;
70 struct section_rename
* next
;
74 /* List of sections to be renamed. */
75 static section_rename
*section_rename_list
;
77 static asymbol
**isympp
= NULL
; /* Input symbols. */
78 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
80 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
81 static int copy_byte
= -1;
82 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
83 static int copy_width
= 1;
85 static bfd_boolean verbose
; /* Print file and target names. */
86 static bfd_boolean preserve_dates
; /* Preserve input file timestamp. */
87 static int deterministic
= -1; /* Enable deterministic archives. */
88 static int status
= 0; /* Exit status. */
93 STRIP_NONE
, /* Don't strip. */
94 STRIP_DEBUG
, /* Strip all debugger symbols. */
95 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
96 STRIP_NONDEBUG
, /* Strip everything but debug info. */
97 STRIP_DWO
, /* Strip all DWO info. */
98 STRIP_NONDWO
, /* Strip everything but DWO info. */
99 STRIP_ALL
/* Strip all symbols. */
102 /* Which symbols to remove. */
103 static enum strip_action strip_symbols
= STRIP_UNDEF
;
108 LOCALS_START_L
, /* Discard locals starting with L. */
109 LOCALS_ALL
/* Discard all locals. */
112 /* Which local symbols to remove. Overrides STRIP_ALL. */
113 static enum locals_action discard_locals
;
115 /* Structure used to hold lists of sections and actions to take. */
118 struct section_list
* next
; /* Next section to change. */
119 const char * pattern
; /* Section name pattern. */
120 bfd_boolean used
; /* Whether this entry was used. */
122 unsigned int context
; /* What to do with matching sections. */
123 /* Flag bits used in the context field.
124 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
125 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
126 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
127 #define SECTION_CONTEXT_SET_VMA (1 << 2) /* Set the sections' VMA address. */
128 #define SECTION_CONTEXT_ALTER_VMA (1 << 3) /* Increment or decrement the section's VMA address. */
129 #define SECTION_CONTEXT_SET_LMA (1 << 4) /* Set the sections' LMA address. */
130 #define SECTION_CONTEXT_ALTER_LMA (1 << 5) /* Increment or decrement the section's LMA address. */
131 #define SECTION_CONTEXT_SET_FLAGS (1 << 6) /* Set the section's flags. */
133 bfd_vma vma_val
; /* Amount to change by or set to. */
134 bfd_vma lma_val
; /* Amount to change by or set to. */
135 flagword flags
; /* What to set the section flags to. */
138 static struct section_list
*change_sections
;
140 /* TRUE if some sections are to be removed. */
141 static bfd_boolean sections_removed
;
143 /* TRUE if only some sections are to be copied. */
144 static bfd_boolean sections_copied
;
146 /* Changes to the start address. */
147 static bfd_vma change_start
= 0;
148 static bfd_boolean set_start_set
= FALSE
;
149 static bfd_vma set_start
;
151 /* Changes to section addresses. */
152 static bfd_vma change_section_address
= 0;
154 /* Filling gaps between sections. */
155 static bfd_boolean gap_fill_set
= FALSE
;
156 static bfd_byte gap_fill
= 0;
158 /* Pad to a given address. */
159 static bfd_boolean pad_to_set
= FALSE
;
160 static bfd_vma pad_to
;
162 /* Use alternative machine code? */
163 static unsigned long use_alt_mach_code
= 0;
165 /* Output BFD flags user wants to set or clear */
166 static flagword bfd_flags_to_set
;
167 static flagword bfd_flags_to_clear
;
169 /* List of sections to add. */
172 /* Next section to add. */
173 struct section_add
*next
;
174 /* Name of section to add. */
176 /* Name of file holding section contents. */
177 const char *filename
;
180 /* Contents of file. */
182 /* BFD section, after it has been added. */
186 /* List of sections to add to the output BFD. */
187 static struct section_add
*add_sections
;
189 /* List of sections to update in the output BFD. */
190 static struct section_add
*update_sections
;
192 /* List of sections to dump from the output BFD. */
193 static struct section_add
*dump_sections
;
195 /* If non-NULL the argument to --add-gnu-debuglink.
196 This should be the filename to store in the .gnu_debuglink section. */
197 static const char * gnu_debuglink_filename
= NULL
;
199 /* Whether to convert debugging information. */
200 static bfd_boolean convert_debugging
= FALSE
;
202 /* Whether to compress/decompress DWARF debug sections. */
207 compress_zlib
= compress
| 1 << 1,
208 compress_gnu_zlib
= compress
| 1 << 2,
209 compress_gabi_zlib
= compress
| 1 << 3,
211 } do_debug_sections
= nothing
;
213 /* Whether to change the leading character in symbol names. */
214 static bfd_boolean change_leading_char
= FALSE
;
216 /* Whether to remove the leading character from global symbol names. */
217 static bfd_boolean remove_leading_char
= FALSE
;
219 /* Whether to permit wildcard in symbol comparison. */
220 static bfd_boolean wildcard
= FALSE
;
222 /* True if --localize-hidden is in effect. */
223 static bfd_boolean localize_hidden
= FALSE
;
225 /* List of symbols to strip, keep, localize, keep-global, weaken,
227 static htab_t strip_specific_htab
= NULL
;
228 static htab_t strip_unneeded_htab
= NULL
;
229 static htab_t keep_specific_htab
= NULL
;
230 static htab_t localize_specific_htab
= NULL
;
231 static htab_t globalize_specific_htab
= NULL
;
232 static htab_t keepglobal_specific_htab
= NULL
;
233 static htab_t weaken_specific_htab
= NULL
;
234 static struct redefine_node
*redefine_sym_list
= NULL
;
236 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
237 static bfd_boolean weaken
= FALSE
;
239 /* If this is TRUE, we retain BSF_FILE symbols. */
240 static bfd_boolean keep_file_symbols
= FALSE
;
242 /* Prefix symbols/sections. */
243 static char *prefix_symbols_string
= 0;
244 static char *prefix_sections_string
= 0;
245 static char *prefix_alloc_sections_string
= 0;
247 /* True if --extract-symbol was passed on the command line. */
248 static bfd_boolean extract_symbol
= FALSE
;
250 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
251 of <reverse_bytes> bytes within each output section. */
252 static int reverse_bytes
= 0;
254 /* For Coff objects, we may want to allow or disallow long section names,
255 or preserve them where found in the inputs. Debug info relies on them. */
256 enum long_section_name_handling
263 /* The default long section handling mode is to preserve them.
264 This is also the only behaviour for 'strip'. */
265 static enum long_section_name_handling long_section_names
= KEEP
;
267 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
268 enum command_line_switch
270 OPTION_ADD_SECTION
=150,
271 OPTION_UPDATE_SECTION
,
273 OPTION_CHANGE_ADDRESSES
,
274 OPTION_CHANGE_LEADING_CHAR
,
276 OPTION_CHANGE_SECTION_ADDRESS
,
277 OPTION_CHANGE_SECTION_LMA
,
278 OPTION_CHANGE_SECTION_VMA
,
279 OPTION_CHANGE_WARNINGS
,
280 OPTION_COMPRESS_DEBUG_SECTIONS
,
282 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
284 OPTION_NO_CHANGE_WARNINGS
,
286 OPTION_REMOVE_LEADING_CHAR
,
287 OPTION_SET_SECTION_FLAGS
,
289 OPTION_STRIP_UNNEEDED
,
292 OPTION_REDEFINE_SYMS
,
295 OPTION_STRIP_SYMBOLS
,
296 OPTION_STRIP_UNNEEDED_SYMBOL
,
297 OPTION_STRIP_UNNEEDED_SYMBOLS
,
299 OPTION_LOCALIZE_HIDDEN
,
300 OPTION_LOCALIZE_SYMBOLS
,
301 OPTION_LONG_SECTION_NAMES
,
302 OPTION_GLOBALIZE_SYMBOL
,
303 OPTION_GLOBALIZE_SYMBOLS
,
304 OPTION_KEEPGLOBAL_SYMBOLS
,
305 OPTION_WEAKEN_SYMBOLS
,
306 OPTION_RENAME_SECTION
,
307 OPTION_ALT_MACH_CODE
,
308 OPTION_PREFIX_SYMBOLS
,
309 OPTION_PREFIX_SECTIONS
,
310 OPTION_PREFIX_ALLOC_SECTIONS
,
312 OPTION_ADD_GNU_DEBUGLINK
,
313 OPTION_ONLY_KEEP_DEBUG
,
314 OPTION_KEEP_FILE_SYMBOLS
,
315 OPTION_READONLY_TEXT
,
316 OPTION_WRITABLE_TEXT
,
319 OPTION_EXTRACT_SYMBOL
,
320 OPTION_REVERSE_BYTES
,
321 OPTION_FILE_ALIGNMENT
,
324 OPTION_SECTION_ALIGNMENT
,
326 OPTION_INTERLEAVE_WIDTH
,
332 /* Options to handle if running as "strip". */
334 static struct option strip_options
[] =
336 {"disable-deterministic-archives", no_argument
, 0, 'U'},
337 {"discard-all", no_argument
, 0, 'x'},
338 {"discard-locals", no_argument
, 0, 'X'},
339 {"enable-deterministic-archives", no_argument
, 0, 'D'},
340 {"format", required_argument
, 0, 'F'}, /* Obsolete */
341 {"help", no_argument
, 0, 'h'},
342 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
343 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
344 {"input-target", required_argument
, 0, 'I'},
345 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
346 {"keep-symbol", required_argument
, 0, 'K'},
347 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
348 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
349 {"output-target", required_argument
, 0, 'O'},
350 {"output-file", required_argument
, 0, 'o'},
351 {"preserve-dates", no_argument
, 0, 'p'},
352 {"remove-section", required_argument
, 0, 'R'},
353 {"strip-all", no_argument
, 0, 's'},
354 {"strip-debug", no_argument
, 0, 'S'},
355 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
356 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
357 {"strip-symbol", required_argument
, 0, 'N'},
358 {"target", required_argument
, 0, 'F'},
359 {"verbose", no_argument
, 0, 'v'},
360 {"version", no_argument
, 0, 'V'},
361 {"wildcard", no_argument
, 0, 'w'},
362 {0, no_argument
, 0, 0}
365 /* Options to handle if running as "objcopy". */
367 static struct option copy_options
[] =
369 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
370 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
371 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
372 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
373 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
374 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
375 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
376 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
377 {"binary-architecture", required_argument
, 0, 'B'},
378 {"byte", required_argument
, 0, 'b'},
379 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
380 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
381 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
382 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
383 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
384 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
385 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
386 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
387 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
388 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
389 {"disable-deterministic-archives", no_argument
, 0, 'U'},
390 {"discard-all", no_argument
, 0, 'x'},
391 {"discard-locals", no_argument
, 0, 'X'},
392 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
393 {"enable-deterministic-archives", no_argument
, 0, 'D'},
394 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
395 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
396 {"format", required_argument
, 0, 'F'}, /* Obsolete */
397 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
398 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
399 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
400 {"help", no_argument
, 0, 'h'},
401 {"impure", no_argument
, 0, OPTION_IMPURE
},
402 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
403 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
404 {"input-target", required_argument
, 0, 'I'},
405 {"interleave", optional_argument
, 0, 'i'},
406 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
407 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
408 {"keep-global-symbol", required_argument
, 0, 'G'},
409 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
410 {"keep-symbol", required_argument
, 0, 'K'},
411 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
412 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
413 {"localize-symbol", required_argument
, 0, 'L'},
414 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
415 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
416 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
417 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
418 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
419 {"only-section", required_argument
, 0, 'j'},
420 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
421 {"output-target", required_argument
, 0, 'O'},
422 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
423 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
424 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
425 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
426 {"preserve-dates", no_argument
, 0, 'p'},
427 {"pure", no_argument
, 0, OPTION_PURE
},
428 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
429 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
430 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
431 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
432 {"remove-section", required_argument
, 0, 'R'},
433 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
434 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
435 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
436 {"set-start", required_argument
, 0, OPTION_SET_START
},
437 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
438 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
439 {"strip-all", no_argument
, 0, 'S'},
440 {"strip-debug", no_argument
, 0, 'g'},
441 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
442 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
443 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
444 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
445 {"strip-symbol", required_argument
, 0, 'N'},
446 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
447 {"target", required_argument
, 0, 'F'},
448 {"verbose", no_argument
, 0, 'v'},
449 {"version", no_argument
, 0, 'V'},
450 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
451 {"weaken-symbol", required_argument
, 0, 'W'},
452 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
453 {"wildcard", no_argument
, 0, 'w'},
454 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
455 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
456 {"heap", required_argument
, 0, OPTION_HEAP
},
457 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
458 {"section-alignment", required_argument
, 0, OPTION_SECTION_ALIGNMENT
},
459 {"stack", required_argument
, 0, OPTION_STACK
},
460 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
461 {0, no_argument
, 0, 0}
465 extern char *program_name
;
467 /* This flag distinguishes between strip and objcopy:
468 1 means this is 'strip'; 0 means this is 'objcopy'.
469 -1 means if we should use argv[0] to decide. */
472 /* The maximum length of an S record. This variable is declared in srec.c
473 and can be modified by the --srec-len parameter. */
474 extern unsigned int Chunk
;
476 /* Restrict the generation of Srecords to type S3 only.
477 This variable is declare in bfd/srec.c and can be toggled
478 on by the --srec-forceS3 command line switch. */
479 extern bfd_boolean S3Forced
;
481 /* Forward declarations. */
482 static void setup_section (bfd
*, asection
*, void *);
483 static void setup_bfd_headers (bfd
*, bfd
*);
484 static void copy_relocations_in_section (bfd
*, asection
*, void *);
485 static void copy_section (bfd
*, asection
*, void *);
486 static void get_sections (bfd
*, asection
*, void *);
487 static int compare_section_lma (const void *, const void *);
488 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
489 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
490 static const char *lookup_sym_redefinition (const char *);
493 copy_usage (FILE *stream
, int exit_status
)
495 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
496 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
497 fprintf (stream
, _(" The options are:\n"));
498 fprintf (stream
, _("\
499 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
500 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
501 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
502 -F --target <bfdname> Set both input and output format to <bfdname>\n\
503 --debugging Convert debugging information, if possible\n\
504 -p --preserve-dates Copy modified/access timestamps to the output\n"));
505 if (DEFAULT_AR_DETERMINISTIC
)
506 fprintf (stream
, _("\
507 -D --enable-deterministic-archives\n\
508 Produce deterministic output when stripping archives (default)\n\
509 -U --disable-deterministic-archives\n\
510 Disable -D behavior\n"));
512 fprintf (stream
, _("\
513 -D --enable-deterministic-archives\n\
514 Produce deterministic output when stripping archives\n\
515 -U --disable-deterministic-archives\n\
516 Disable -D behavior (default)\n"));
517 fprintf (stream
, _("\
518 -j --only-section <name> Only copy section <name> into the output\n\
519 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
520 -R --remove-section <name> Remove section <name> from the output\n\
521 -S --strip-all Remove all symbol and relocation information\n\
522 -g --strip-debug Remove all debugging symbols & sections\n\
523 --strip-dwo Remove all DWO sections\n\
524 --strip-unneeded Remove all symbols not needed by relocations\n\
525 -N --strip-symbol <name> Do not copy symbol <name>\n\
526 --strip-unneeded-symbol <name>\n\
527 Do not copy symbol <name> unless needed by\n\
529 --only-keep-debug Strip everything but the debug information\n\
530 --extract-dwo Copy only DWO sections\n\
531 --extract-symbol Remove section contents but keep symbols\n\
532 -K --keep-symbol <name> Do not strip symbol <name>\n\
533 --keep-file-symbols Do not strip file symbol(s)\n\
534 --localize-hidden Turn all ELF hidden symbols into locals\n\
535 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
536 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
537 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
538 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
539 --weaken Force all global symbols to be marked as weak\n\
540 -w --wildcard Permit wildcard in symbol comparison\n\
541 -x --discard-all Remove all non-global symbols\n\
542 -X --discard-locals Remove any compiler-generated symbols\n\
543 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
544 --interleave-width <number> Set N for --interleave\n\
545 -b --byte <num> Select byte <num> in every interleaved block\n\
546 --gap-fill <val> Fill gaps between sections with <val>\n\
547 --pad-to <addr> Pad the last section up to address <addr>\n\
548 --set-start <addr> Set the start address to <addr>\n\
549 {--change-start|--adjust-start} <incr>\n\
550 Add <incr> to the start address\n\
551 {--change-addresses|--adjust-vma} <incr>\n\
552 Add <incr> to LMA, VMA and start addresses\n\
553 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
554 Change LMA and VMA of section <name> by <val>\n\
555 --change-section-lma <name>{=|+|-}<val>\n\
556 Change the LMA of section <name> by <val>\n\
557 --change-section-vma <name>{=|+|-}<val>\n\
558 Change the VMA of section <name> by <val>\n\
559 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
560 Warn if a named section does not exist\n\
561 --set-section-flags <name>=<flags>\n\
562 Set section <name>'s properties to <flags>\n\
563 --add-section <name>=<file> Add section <name> found in <file> to output\n\
564 --update-section <name>=<file>\n\
565 Update contents of section <name> with\n\
566 contents found in <file>\n\
567 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
568 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
569 --long-section-names {enable|disable|keep}\n\
570 Handle long section names in Coff objects.\n\
571 --change-leading-char Force output format's leading character style\n\
572 --remove-leading-char Remove leading character from global symbols\n\
573 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
574 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
575 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
577 --srec-len <number> Restrict the length of generated Srecords\n\
578 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
579 --strip-symbols <file> -N for all symbols listed in <file>\n\
580 --strip-unneeded-symbols <file>\n\
581 --strip-unneeded-symbol for all symbols listed\n\
583 --keep-symbols <file> -K for all symbols listed in <file>\n\
584 --localize-symbols <file> -L for all symbols listed in <file>\n\
585 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
586 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
587 --weaken-symbols <file> -W for all symbols listed in <file>\n\
588 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
589 --writable-text Mark the output text as writable\n\
590 --readonly-text Make the output text write protected\n\
591 --pure Mark the output file as demand paged\n\
592 --impure Mark the output file as impure\n\
593 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
594 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
595 --prefix-alloc-sections <prefix>\n\
596 Add <prefix> to start of every allocatable\n\
598 --file-alignment <num> Set PE file alignment to <num>\n\
599 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
601 --image-base <address> Set PE image base to <address>\n\
602 --section-alignment <num> Set PE section alignment to <num>\n\
603 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
605 --subsystem <name>[:<version>]\n\
606 Set PE subsystem to <name> [& <version>]\n\
607 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
608 Compress DWARF debug sections using zlib\n\
609 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
610 -v --verbose List all object files modified\n\
611 @<file> Read options from <file>\n\
612 -V --version Display this program's version number\n\
613 -h --help Display this output\n\
614 --info List object formats & architectures supported\n\
616 list_supported_targets (program_name
, stream
);
617 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
618 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
623 strip_usage (FILE *stream
, int exit_status
)
625 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
626 fprintf (stream
, _(" Removes symbols and sections from files\n"));
627 fprintf (stream
, _(" The options are:\n"));
628 fprintf (stream
, _("\
629 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
630 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
631 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
632 -p --preserve-dates Copy modified/access timestamps to the output\n\
634 if (DEFAULT_AR_DETERMINISTIC
)
635 fprintf (stream
, _("\
636 -D --enable-deterministic-archives\n\
637 Produce deterministic output when stripping archives (default)\n\
638 -U --disable-deterministic-archives\n\
639 Disable -D behavior\n"));
641 fprintf (stream
, _("\
642 -D --enable-deterministic-archives\n\
643 Produce deterministic output when stripping archives\n\
644 -U --disable-deterministic-archives\n\
645 Disable -D behavior (default)\n"));
646 fprintf (stream
, _("\
647 -R --remove-section=<name> Also remove section <name> from the output\n\
648 -s --strip-all Remove all symbol and relocation information\n\
649 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
650 --strip-dwo Remove all DWO sections\n\
651 --strip-unneeded Remove all symbols not needed by relocations\n\
652 --only-keep-debug Strip everything but the debug information\n\
653 -N --strip-symbol=<name> Do not copy symbol <name>\n\
654 -K --keep-symbol=<name> Do not strip symbol <name>\n\
655 --keep-file-symbols Do not strip file symbol(s)\n\
656 -w --wildcard Permit wildcard in symbol comparison\n\
657 -x --discard-all Remove all non-global symbols\n\
658 -X --discard-locals Remove any compiler-generated symbols\n\
659 -v --verbose List all object files modified\n\
660 -V --version Display this program's version number\n\
661 -h --help Display this output\n\
662 --info List object formats & architectures supported\n\
663 -o <file> Place stripped output into <file>\n\
666 list_supported_targets (program_name
, stream
);
667 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
668 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
672 /* Parse section flags into a flagword, with a fatal error if the
673 string can't be parsed. */
676 parse_flags (const char *s
)
686 snext
= strchr (s
, ',');
696 #define PARSE_FLAG(fname,fval) \
697 else if (strncasecmp (fname, s, len) == 0) ret |= fval
698 PARSE_FLAG ("alloc", SEC_ALLOC
);
699 PARSE_FLAG ("load", SEC_LOAD
);
700 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
701 PARSE_FLAG ("readonly", SEC_READONLY
);
702 PARSE_FLAG ("debug", SEC_DEBUGGING
);
703 PARSE_FLAG ("code", SEC_CODE
);
704 PARSE_FLAG ("data", SEC_DATA
);
705 PARSE_FLAG ("rom", SEC_ROM
);
706 PARSE_FLAG ("share", SEC_COFF_SHARED
);
707 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
708 PARSE_FLAG ("merge", SEC_MERGE
);
709 PARSE_FLAG ("strings", SEC_STRINGS
);
715 copy
= (char *) xmalloc (len
+ 1);
716 strncpy (copy
, s
, len
);
718 non_fatal (_("unrecognized section flag `%s'"), copy
);
719 fatal (_("supported flags: %s"),
720 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
730 /* Find and optionally add an entry in the change_sections list.
732 We need to be careful in how we match section names because of the support
733 for wildcard characters. For example suppose that the user has invoked
736 --set-section-flags .debug_*=debug
737 --set-section-flags .debug_str=readonly,debug
738 --change-section-address .debug_*ranges=0x1000
740 With the idea that all debug sections will receive the DEBUG flag, the
741 .debug_str section will also receive the READONLY flag and the
742 .debug_ranges and .debug_aranges sections will have their address set to
743 0x1000. (This may not make much sense, but it is just an example).
745 When adding the section name patterns to the section list we need to make
746 sure that previous entries do not match with the new entry, unless the
747 match is exact. (In which case we assume that the user is overriding
748 the previous entry with the new context).
750 When matching real section names to the section list we make use of the
751 wildcard characters, but we must do so in context. Eg if we are setting
752 section addresses then we match for .debug_ranges but not for .debug_info.
754 Finally, if ADD is false and we do find a match, we mark the section list
757 static struct section_list
*
758 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
760 struct section_list
*p
;
762 /* assert ((context & ((1 << 7) - 1)) != 0); */
764 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
768 if (strcmp (p
->pattern
, name
) == 0)
770 /* Check for context conflicts. */
771 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
772 && (context
& SECTION_CONTEXT_COPY
))
773 || ((context
& SECTION_CONTEXT_REMOVE
)
774 && (p
->context
& SECTION_CONTEXT_COPY
)))
775 fatal (_("error: %s both copied and removed"), name
);
777 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
778 && (context
& SECTION_CONTEXT_ALTER_VMA
))
779 || ((context
& SECTION_CONTEXT_SET_VMA
)
780 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
781 fatal (_("error: %s both sets and alters VMA"), name
);
783 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
784 && (context
& SECTION_CONTEXT_ALTER_LMA
))
785 || ((context
& SECTION_CONTEXT_SET_LMA
)
786 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
787 fatal (_("error: %s both sets and alters LMA"), name
);
789 /* Extend the context. */
790 p
->context
|= context
;
794 /* If we are not adding a new name/pattern then
795 only check for a match if the context applies. */
796 else if ((p
->context
& context
)
797 /* We could check for the presence of wildchar characters
798 first and choose between calling strcmp and fnmatch,
799 but is that really worth it ? */
800 && fnmatch (p
->pattern
, name
, 0) == 0)
810 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
813 p
->context
= context
;
817 p
->next
= change_sections
;
823 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
826 eq_string (const void *s1
, const void *s2
)
828 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
832 create_symbol_htab (void)
834 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
838 create_symbol_htabs (void)
840 strip_specific_htab
= create_symbol_htab ();
841 strip_unneeded_htab
= create_symbol_htab ();
842 keep_specific_htab
= create_symbol_htab ();
843 localize_specific_htab
= create_symbol_htab ();
844 globalize_specific_htab
= create_symbol_htab ();
845 keepglobal_specific_htab
= create_symbol_htab ();
846 weaken_specific_htab
= create_symbol_htab ();
849 /* Add a symbol to strip_specific_list. */
852 add_specific_symbol (const char *name
, htab_t htab
)
854 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
857 /* Add symbols listed in `filename' to strip_specific_list. */
859 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
860 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
863 add_specific_symbols (const char *filename
, htab_t htab
)
869 unsigned int line_count
;
871 size
= get_file_size (filename
);
878 buffer
= (char *) xmalloc (size
+ 2);
879 f
= fopen (filename
, FOPEN_RT
);
881 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
883 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
884 fatal (_("%s: fread failed"), filename
);
887 buffer
[size
] = '\n';
888 buffer
[size
+ 1] = '\0';
892 for (line
= buffer
; * line
!= '\0'; line
++)
897 int finished
= FALSE
;
899 for (eol
= line
;; eol
++)
905 /* Cope with \n\r. */
913 /* Cope with \r\n. */
924 /* Line comment, Terminate the line here, in case a
925 name is present and then allow the rest of the
926 loop to find the real end of the line. */
938 /* A name may now exist somewhere between 'line' and 'eol'.
939 Strip off leading whitespace and trailing whitespace,
940 then add it to the list. */
941 for (name
= line
; IS_WHITESPACE (* name
); name
++)
943 for (name_end
= name
;
944 (! IS_WHITESPACE (* name_end
))
945 && (! IS_LINE_TERMINATOR (* name_end
));
949 if (! IS_LINE_TERMINATOR (* name_end
))
953 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
956 if (! IS_LINE_TERMINATOR (* extra
))
957 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
958 filename
, line_count
);
964 add_specific_symbol (name
, htab
);
966 /* Advance line pointer to end of line. The 'eol ++' in the for
967 loop above will then advance us to the start of the next line. */
973 /* See whether a symbol should be stripped or kept
974 based on strip_specific_list and keep_symbols. */
977 is_specified_symbol_predicate (void **slot
, void *data
)
979 struct is_specified_symbol_predicate_data
*d
=
980 (struct is_specified_symbol_predicate_data
*) data
;
981 const char *slot_name
= (char *) *slot
;
983 if (*slot_name
!= '!')
985 if (! fnmatch (slot_name
, d
->name
, 0))
988 /* Continue traversal, there might be a non-match rule. */
994 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
997 /* Stop traversal. */
1002 /* Continue traversal. */
1007 is_specified_symbol (const char *name
, htab_t htab
)
1011 struct is_specified_symbol_predicate_data data
;
1016 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1021 return htab_find (htab
, name
) != NULL
;
1024 /* Return a pointer to the symbol used as a signature for GROUP. */
1027 group_signature (asection
*group
)
1029 bfd
*abfd
= group
->owner
;
1030 Elf_Internal_Shdr
*ghdr
;
1032 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1035 ghdr
= &elf_section_data (group
)->this_hdr
;
1036 if (ghdr
->sh_link
< elf_numsections (abfd
))
1038 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1039 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1041 if (symhdr
->sh_type
== SHT_SYMTAB
1042 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1043 return isympp
[ghdr
->sh_info
- 1];
1048 /* Return TRUE if the section is a DWO section. */
1051 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1053 const char *name
= bfd_get_section_name (abfd
, sec
);
1054 int len
= strlen (name
);
1056 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1059 /* Return TRUE if section SEC is in the update list. */
1062 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1064 if (update_sections
!= NULL
)
1066 struct section_add
*pupdate
;
1068 for (pupdate
= update_sections
;
1070 pupdate
= pupdate
->next
)
1072 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1080 /* See if a non-group section is being removed. */
1083 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1085 if (sections_removed
|| sections_copied
)
1087 struct section_list
*p
;
1088 struct section_list
*q
;
1090 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1091 SECTION_CONTEXT_REMOVE
);
1092 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1093 SECTION_CONTEXT_COPY
);
1096 fatal (_("error: section %s matches both remove and copy options"),
1097 bfd_get_section_name (abfd
, sec
));
1098 if (p
&& is_update_section (abfd
, sec
))
1099 fatal (_("error: section %s matches both update and remove options"),
1100 bfd_get_section_name (abfd
, sec
));
1104 if (sections_copied
&& q
== NULL
)
1108 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1110 if (strip_symbols
== STRIP_DEBUG
1111 || strip_symbols
== STRIP_UNNEEDED
1112 || strip_symbols
== STRIP_ALL
1113 || discard_locals
== LOCALS_ALL
1114 || convert_debugging
)
1116 /* By default we don't want to strip .reloc section.
1117 This section has for pe-coff special meaning. See
1118 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1119 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1123 if (strip_symbols
== STRIP_DWO
)
1124 return is_dwo_section (abfd
, sec
);
1126 if (strip_symbols
== STRIP_NONDEBUG
)
1130 if (strip_symbols
== STRIP_NONDWO
)
1131 return !is_dwo_section (abfd
, sec
);
1136 /* See if a section is being removed. */
1139 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1141 if (is_strip_section_1 (abfd
, sec
))
1144 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1148 asection
*elt
, *first
;
1151 If we are going to strip the group signature symbol, then
1152 strip the group section too. */
1153 gsym
= group_signature (sec
);
1158 if ((strip_symbols
== STRIP_ALL
1159 && !is_specified_symbol (gname
, keep_specific_htab
))
1160 || is_specified_symbol (gname
, strip_specific_htab
))
1163 /* Remove the group section if all members are removed. */
1164 first
= elt
= elf_next_in_group (sec
);
1167 if (!is_strip_section_1 (abfd
, elt
))
1169 elt
= elf_next_in_group (elt
);
1181 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1183 /* Always keep ELF note sections. */
1184 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1185 return (elf_section_type (isection
) == SHT_NOTE
);
1187 /* Always keep the .buildid section for PE/COFF.
1189 Strictly, this should be written "always keep the section storing the debug
1190 directory", but that may be the .text section for objects produced by some
1191 tools, which it is not sensible to keep. */
1192 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1193 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1198 /* Return true if SYM is a hidden symbol. */
1201 is_hidden_symbol (asymbol
*sym
)
1203 elf_symbol_type
*elf_sym
;
1205 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1206 if (elf_sym
!= NULL
)
1207 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1216 /* Choose which symbol entries to copy; put the result in OSYMS.
1217 We don't copy in place, because that confuses the relocs.
1218 Return the number of symbols to print. */
1221 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1222 asymbol
**isyms
, long symcount
)
1224 asymbol
**from
= isyms
, **to
= osyms
;
1225 long src_count
= 0, dst_count
= 0;
1226 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1228 for (; src_count
< symcount
; src_count
++)
1230 asymbol
*sym
= from
[src_count
];
1231 flagword flags
= sym
->flags
;
1232 char *name
= (char *) bfd_asymbol_name (sym
);
1234 bfd_boolean used_in_reloc
= FALSE
;
1235 bfd_boolean undefined
;
1236 bfd_boolean rem_leading_char
;
1237 bfd_boolean add_leading_char
;
1239 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1241 if (redefine_sym_list
)
1243 char *old_name
, *new_name
;
1245 old_name
= (char *) bfd_asymbol_name (sym
);
1246 new_name
= (char *) lookup_sym_redefinition (old_name
);
1247 bfd_asymbol_name (sym
) = new_name
;
1251 /* Check if we will remove the current leading character. */
1253 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1254 && (change_leading_char
1255 || (remove_leading_char
1256 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1258 || bfd_is_com_section (bfd_get_section (sym
)))));
1260 /* Check if we will add a new leading character. */
1263 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1264 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1265 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1267 /* Short circuit for change_leading_char if we can do it in-place. */
1268 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1270 name
[0] = bfd_get_symbol_leading_char (obfd
);
1271 bfd_asymbol_name (sym
) = name
;
1272 rem_leading_char
= FALSE
;
1273 add_leading_char
= FALSE
;
1276 /* Remove leading char. */
1277 if (rem_leading_char
)
1278 bfd_asymbol_name (sym
) = ++name
;
1280 /* Add new leading char and/or prefix. */
1281 if (add_leading_char
|| prefix_symbols_string
)
1285 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1286 + strlen (name
) + 1);
1287 if (add_leading_char
)
1288 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1290 if (prefix_symbols_string
)
1292 strcpy (ptr
, prefix_symbols_string
);
1293 ptr
+= strlen (prefix_symbols_string
);
1297 bfd_asymbol_name (sym
) = n
;
1301 if (strip_symbols
== STRIP_ALL
)
1303 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1304 || ((flags
& BSF_SECTION_SYM
) != 0
1305 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1309 used_in_reloc
= TRUE
;
1311 else if (relocatable
/* Relocatable file. */
1312 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1313 || bfd_is_com_section (bfd_get_section (sym
))))
1315 else if (bfd_decode_symclass (sym
) == 'I')
1316 /* Global symbols in $idata sections need to be retained
1317 even if relocatable is FALSE. External users of the
1318 library containing the $idata section may reference these
1321 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1322 || (flags
& BSF_WEAK
) != 0
1324 || bfd_is_com_section (bfd_get_section (sym
)))
1325 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1326 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1327 keep
= (strip_symbols
!= STRIP_DEBUG
1328 && strip_symbols
!= STRIP_UNNEEDED
1329 && ! convert_debugging
);
1330 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1331 /* COMDAT sections store special information in local
1332 symbols, so we cannot risk stripping any of them. */
1334 else /* Local symbol. */
1335 keep
= (strip_symbols
!= STRIP_UNNEEDED
1336 && (discard_locals
!= LOCALS_ALL
1337 && (discard_locals
!= LOCALS_START_L
1338 || ! bfd_is_local_label (abfd
, sym
))));
1340 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1342 /* There are multiple ways to set 'keep' above, but if it
1343 was the relocatable symbol case, then that's an error. */
1346 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1354 && !(flags
& BSF_KEEP
)
1355 && is_specified_symbol (name
, strip_unneeded_htab
))
1359 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1360 || is_specified_symbol (name
, keep_specific_htab
)))
1363 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1368 if ((flags
& BSF_GLOBAL
) != 0
1369 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1371 sym
->flags
&= ~ BSF_GLOBAL
;
1372 sym
->flags
|= BSF_WEAK
;
1376 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1377 && (is_specified_symbol (name
, localize_specific_htab
)
1378 || (htab_elements (keepglobal_specific_htab
) != 0
1379 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1380 || (localize_hidden
&& is_hidden_symbol (sym
))))
1382 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1383 sym
->flags
|= BSF_LOCAL
;
1387 && (flags
& BSF_LOCAL
)
1388 && is_specified_symbol (name
, globalize_specific_htab
))
1390 sym
->flags
&= ~ BSF_LOCAL
;
1391 sym
->flags
|= BSF_GLOBAL
;
1394 to
[dst_count
++] = sym
;
1398 to
[dst_count
] = NULL
;
1403 /* Find the redefined name of symbol SOURCE. */
1406 lookup_sym_redefinition (const char *source
)
1408 struct redefine_node
*list
;
1410 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1411 if (strcmp (source
, list
->source
) == 0)
1412 return list
->target
;
1417 /* Add a node to a symbol redefine list. */
1420 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1422 struct redefine_node
**p
;
1423 struct redefine_node
*list
;
1424 struct redefine_node
*new_node
;
1426 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1428 if (strcmp (source
, list
->source
) == 0)
1429 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1432 if (strcmp (target
, list
->target
) == 0)
1433 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1437 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1439 new_node
->source
= strdup (source
);
1440 new_node
->target
= strdup (target
);
1441 new_node
->next
= NULL
;
1446 /* Handle the --redefine-syms option. Read lines containing "old new"
1447 from the file, and add them to the symbol redefine list. */
1450 add_redefine_syms_file (const char *filename
)
1459 file
= fopen (filename
, "r");
1461 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1462 filename
, strerror (errno
));
1465 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1473 /* Collect the input symbol name. */
1474 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1482 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1490 /* Eat white space between the symbol names. */
1491 while (IS_WHITESPACE (c
))
1493 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1498 /* Collect the output symbol name. */
1500 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1508 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1516 /* Eat white space at end of line. */
1517 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1522 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1523 || c
== '\n' || c
== EOF
)
1526 /* Append the redefinition to the list. */
1528 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1539 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1541 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1542 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1545 /* Eat the rest of the line and finish it. */
1546 while (c
!= '\n' && c
!= EOF
)
1552 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1557 /* Copy unkown object file IBFD onto OBFD.
1558 Returns TRUE upon success, FALSE otherwise. */
1561 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1569 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1571 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1578 non_fatal (_("stat returns negative size for `%s'"),
1579 bfd_get_archive_filename (ibfd
));
1583 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1585 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1590 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1591 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1593 cbuf
= (char *) xmalloc (BUFSIZE
);
1595 while (ncopied
< size
)
1597 tocopy
= size
- ncopied
;
1598 if (tocopy
> BUFSIZE
)
1601 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1602 != (bfd_size_type
) tocopy
)
1604 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1609 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1610 != (bfd_size_type
) tocopy
)
1612 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1620 /* We should at least to be able to read it back when copying an
1621 unknown object in an archive. */
1622 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1627 /* Copy object file IBFD onto OBFD.
1628 Returns TRUE upon success, FALSE otherwise. */
1631 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1635 asection
**osections
= NULL
;
1636 asection
*gnu_debuglink_section
= NULL
;
1637 bfd_size_type
*gaps
= NULL
;
1638 bfd_size_type max_gap
= 0;
1641 enum bfd_architecture iarch
;
1644 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1645 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1646 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1648 /* PR 17636: Call non-fatal so that we return to our parent who
1649 may need to tidy temporary files. */
1650 non_fatal (_("Unable to change endianness of input file(s)"));
1654 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1656 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1660 if (ibfd
->sections
== NULL
)
1662 non_fatal (_("error: the input file '%s' has no sections"),
1663 bfd_get_archive_filename (ibfd
));
1667 if ((do_debug_sections
& compress
) != 0
1668 && do_debug_sections
!= compress
1669 && ibfd
->xvec
->flavour
!= bfd_target_elf_flavour
)
1671 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1672 bfd_get_archive_filename (ibfd
));
1677 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1678 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1679 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1688 start
= bfd_get_start_address (ibfd
);
1689 start
+= change_start
;
1692 /* Neither the start address nor the flags
1693 need to be set for a core file. */
1694 if (bfd_get_format (obfd
) != bfd_core
)
1698 flags
= bfd_get_file_flags (ibfd
);
1699 flags
|= bfd_flags_to_set
;
1700 flags
&= ~bfd_flags_to_clear
;
1701 flags
&= bfd_applicable_file_flags (obfd
);
1703 if (strip_symbols
== STRIP_ALL
)
1704 flags
&= ~HAS_RELOC
;
1706 if (!bfd_set_start_address (obfd
, start
)
1707 || !bfd_set_file_flags (obfd
, flags
))
1709 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1714 /* Copy architecture of input file to output file. */
1715 iarch
= bfd_get_arch (ibfd
);
1716 imach
= bfd_get_mach (ibfd
);
1719 if (bfd_get_arch_info (ibfd
) == NULL
1720 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1722 iarch
= input_arch
->arch
;
1723 imach
= input_arch
->mach
;
1726 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1727 bfd_get_archive_filename (ibfd
));
1729 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1730 && (ibfd
->target_defaulted
1731 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1733 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1734 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1735 bfd_get_archive_filename (ibfd
));
1737 non_fatal (_("Output file cannot represent architecture `%s'"),
1738 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1739 bfd_get_mach (ibfd
)));
1743 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1745 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1749 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1750 && bfd_pei_p (obfd
))
1752 /* Set up PE parameters. */
1753 pe_data_type
*pe
= pe_data (obfd
);
1755 /* Copy PE parameters before changing them. */
1756 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1757 && bfd_pei_p (ibfd
))
1758 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1760 if (pe_file_alignment
!= (bfd_vma
) -1)
1761 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1763 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1765 if (pe_heap_commit
!= (bfd_vma
) -1)
1766 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1768 if (pe_heap_reserve
!= (bfd_vma
) -1)
1769 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1771 if (pe_image_base
!= (bfd_vma
) -1)
1772 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1774 if (pe_section_alignment
!= (bfd_vma
) -1)
1775 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1777 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1779 if (pe_stack_commit
!= (bfd_vma
) -1)
1780 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1782 if (pe_stack_reserve
!= (bfd_vma
) -1)
1783 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1785 if (pe_subsystem
!= -1)
1786 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1788 if (pe_major_subsystem_version
!= -1)
1789 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1791 if (pe_minor_subsystem_version
!= -1)
1792 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1794 if (pe_file_alignment
> pe_section_alignment
)
1796 char file_alignment
[20], section_alignment
[20];
1798 sprintf_vma (file_alignment
, pe_file_alignment
);
1799 sprintf_vma (section_alignment
, pe_section_alignment
);
1800 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1802 file_alignment
, section_alignment
);
1809 if (osympp
!= isympp
)
1815 symsize
= bfd_get_symtab_upper_bound (ibfd
);
1818 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1822 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
1823 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
1826 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1829 /* PR 17512: file: d6323821
1830 If the symbol table could not be loaded do not pretend that we have
1831 any symbols. This trips us up later on when we load the relocs. */
1835 osympp
= isympp
= NULL
;
1838 /* BFD mandates that all output sections be created and sizes set before
1839 any output is done. Thus, we traverse all sections multiple times. */
1840 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
1842 if (!extract_symbol
)
1843 setup_bfd_headers (ibfd
, obfd
);
1845 if (add_sections
!= NULL
)
1847 struct section_add
*padd
;
1848 struct section_list
*pset
;
1850 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
1854 pset
= find_section_list (padd
->name
, FALSE
,
1855 SECTION_CONTEXT_SET_FLAGS
);
1857 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
1859 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
1861 /* bfd_make_section_with_flags() does not return very helpful
1862 error codes, so check for the most likely user error first. */
1863 if (bfd_get_section_by_name (obfd
, padd
->name
))
1865 bfd_nonfatal_message (NULL
, obfd
, NULL
,
1866 _("can't add section '%s'"), padd
->name
);
1871 /* We use LINKER_CREATED here so that the backend hooks
1872 will create any special section type information,
1873 instead of presuming we know what we're doing merely
1874 because we set the flags. */
1875 padd
->section
= bfd_make_section_with_flags
1876 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
1877 if (padd
->section
== NULL
)
1879 bfd_nonfatal_message (NULL
, obfd
, NULL
,
1880 _("can't create section `%s'"),
1886 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
1888 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1892 pset
= find_section_list (padd
->name
, FALSE
,
1893 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
1895 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
1897 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1901 pset
= find_section_list (padd
->name
, FALSE
,
1902 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
1905 padd
->section
->lma
= pset
->lma_val
;
1907 if (! bfd_set_section_alignment
1908 (obfd
, padd
->section
,
1909 bfd_section_alignment (obfd
, padd
->section
)))
1911 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1918 if (update_sections
!= NULL
)
1920 struct section_add
*pupdate
;
1922 for (pupdate
= update_sections
;
1924 pupdate
= pupdate
->next
)
1928 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
1929 if (pupdate
->section
== NULL
)
1931 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
1935 osec
= pupdate
->section
->output_section
;
1936 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
1938 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
1944 if (dump_sections
!= NULL
)
1946 struct section_add
* pdump
;
1948 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
1952 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
1955 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
1956 _("can't dump section '%s' - it does not exist"),
1961 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
1963 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1964 _("can't dump section - it has no contents"));
1968 bfd_size_type size
= bfd_get_section_size (sec
);
1971 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1972 _("can't dump section - it is empty"));
1977 f
= fopen (pdump
->filename
, FOPEN_WB
);
1980 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
1981 _("could not open section dump file"));
1985 bfd_byte
* contents
= xmalloc (size
);
1986 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
1988 if (fwrite (contents
, 1, size
, f
) != size
)
1990 non_fatal (_("error writing section contents to %s (error: %s)"),
1997 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1998 _("could not retrieve section contents"));
2005 if (gnu_debuglink_filename
!= NULL
)
2007 /* PR 15125: Give a helpful warning message if
2008 the debuglink section already exists, and
2009 allow the rest of the copy to complete. */
2010 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2012 non_fatal (_("%s: debuglink section already exists"),
2013 bfd_get_filename (obfd
));
2014 gnu_debuglink_filename
= NULL
;
2018 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
2019 (obfd
, gnu_debuglink_filename
);
2021 if (gnu_debuglink_section
== NULL
)
2023 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2024 _("cannot create debug link section `%s'"),
2025 gnu_debuglink_filename
);
2029 /* Special processing for PE format files. We
2030 have no way to distinguish PE from COFF here. */
2031 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2033 bfd_vma debuglink_vma
;
2034 asection
* highest_section
;
2037 /* The PE spec requires that all sections be adjacent and sorted
2038 in ascending order of VMA. It also specifies that debug
2039 sections should be last. This is despite the fact that debug
2040 sections are not loaded into memory and so in theory have no
2043 This means that the debuglink section must be given a non-zero
2044 VMA which makes it contiguous with other debug sections. So
2045 walk the current section list, find the section with the
2046 highest VMA and start the debuglink section after that one. */
2047 for (sec
= obfd
->sections
, highest_section
= NULL
;
2051 && (highest_section
== NULL
2052 || sec
->vma
> highest_section
->vma
))
2053 highest_section
= sec
;
2055 if (highest_section
)
2056 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2057 + highest_section
->size
,
2058 /* FIXME: We ought to be using
2059 COFF_PAGE_SIZE here or maybe
2060 bfd_get_section_alignment() (if it
2061 was set) but since this is for PE
2062 and we know the required alignment
2063 it is easier just to hard code it. */
2066 /* Umm, not sure what to do in this case. */
2067 debuglink_vma
= 0x1000;
2069 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2074 if (bfd_count_sections (obfd
) != 0
2075 && (gap_fill_set
|| pad_to_set
))
2080 /* We must fill in gaps between the sections and/or we must pad
2081 the last section to a specified address. We do this by
2082 grabbing a list of the sections, sorting them by VMA, and
2083 increasing the section sizes as required to fill the gaps.
2084 We write out the gap contents below. */
2086 c
= bfd_count_sections (obfd
);
2087 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2089 bfd_map_over_sections (obfd
, get_sections
, &set
);
2091 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2093 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2094 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2098 for (i
= 0; i
< c
- 1; i
++)
2102 bfd_vma gap_start
, gap_stop
;
2104 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2105 if ((flags
& SEC_HAS_CONTENTS
) == 0
2106 || (flags
& SEC_LOAD
) == 0)
2109 size
= bfd_section_size (obfd
, osections
[i
]);
2110 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2111 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2112 if (gap_start
< gap_stop
)
2114 if (! bfd_set_section_size (obfd
, osections
[i
],
2115 size
+ (gap_stop
- gap_start
)))
2117 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2118 _("Can't fill gap after section"));
2122 gaps
[i
] = gap_stop
- gap_start
;
2123 if (max_gap
< gap_stop
- gap_start
)
2124 max_gap
= gap_stop
- gap_start
;
2134 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2135 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2136 if (lma
+ size
< pad_to
)
2138 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2141 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2142 _("can't add padding"));
2147 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2148 if (max_gap
< pad_to
- (lma
+ size
))
2149 max_gap
= pad_to
- (lma
+ size
);
2155 /* Symbol filtering must happen after the output sections
2156 have been created, but before their contents are set. */
2158 if (convert_debugging
)
2159 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2161 if (strip_symbols
== STRIP_DEBUG
2162 || strip_symbols
== STRIP_ALL
2163 || strip_symbols
== STRIP_UNNEEDED
2164 || strip_symbols
== STRIP_NONDEBUG
2165 || strip_symbols
== STRIP_DWO
2166 || strip_symbols
== STRIP_NONDWO
2167 || discard_locals
!= LOCALS_UNDEF
2169 || htab_elements (strip_specific_htab
) != 0
2170 || htab_elements (keep_specific_htab
) != 0
2171 || htab_elements (localize_specific_htab
) != 0
2172 || htab_elements (globalize_specific_htab
) != 0
2173 || htab_elements (keepglobal_specific_htab
) != 0
2174 || htab_elements (weaken_specific_htab
) != 0
2175 || prefix_symbols_string
2178 || convert_debugging
2179 || change_leading_char
2180 || remove_leading_char
2181 || redefine_sym_list
2184 /* Mark symbols used in output relocations so that they
2185 are kept, even if they are local labels or static symbols.
2187 Note we iterate over the input sections examining their
2188 relocations since the relocations for the output sections
2189 haven't been set yet. mark_symbols_used_in_relocations will
2190 ignore input sections which have no corresponding output
2192 if (strip_symbols
!= STRIP_ALL
)
2193 bfd_map_over_sections (ibfd
,
2194 mark_symbols_used_in_relocations
,
2196 osympp
= (asymbol
**) xmalloc ((symcount
+ 1) * sizeof (asymbol
*));
2197 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2200 if (convert_debugging
&& dhandle
!= NULL
)
2202 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2209 bfd_set_symtab (obfd
, osympp
, symcount
);
2211 /* This has to happen before section positions are set. */
2212 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2214 /* This has to happen after the symbol table has been set. */
2215 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2217 if (add_sections
!= NULL
)
2219 struct section_add
*padd
;
2221 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2223 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2226 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2232 if (update_sections
!= NULL
)
2234 struct section_add
*pupdate
;
2236 for (pupdate
= update_sections
;
2238 pupdate
= pupdate
->next
)
2242 osec
= pupdate
->section
->output_section
;
2243 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2246 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2252 if (gnu_debuglink_filename
!= NULL
)
2254 if (! bfd_fill_in_gnu_debuglink_section
2255 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2257 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2258 _("cannot fill debug link section `%s'"),
2259 gnu_debuglink_filename
);
2264 if (gap_fill_set
|| pad_to_set
)
2269 /* Fill in the gaps. */
2272 buf
= (bfd_byte
*) xmalloc (max_gap
);
2273 memset (buf
, gap_fill
, max_gap
);
2275 c
= bfd_count_sections (obfd
);
2276 for (i
= 0; i
< c
; i
++)
2284 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2295 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2298 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2309 /* Do not copy backend data if --extract-symbol is passed; anything
2310 that needs to look at the section contents will fail. */
2314 /* Allow the BFD backend to copy any private data it understands
2315 from the input BFD to the output BFD. This is done last to
2316 permit the routine to look at the filtered symbol table, which is
2317 important for the ECOFF code at least. */
2318 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2320 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2321 _("error copying private BFD data"));
2325 /* Switch to the alternate machine code. We have to do this at the
2326 very end, because we only initialize the header when we create
2327 the first section. */
2328 if (use_alt_mach_code
!= 0)
2330 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2332 non_fatal (_("this target does not support %lu alternative machine codes"),
2334 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2336 non_fatal (_("treating that number as an absolute e_machine value instead"));
2337 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2340 non_fatal (_("ignoring the alternative value"));
2347 /* Read each archive element in turn from IBFD, copy the
2348 contents to temp file, and keep the temp file handle.
2349 If 'force_output_target' is TRUE then make sure that
2350 all elements in the new archive are of the type
2354 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2355 bfd_boolean force_output_target
,
2356 const bfd_arch_info_type
*input_arch
)
2360 struct name_list
*next
;
2364 bfd
**ptr
= &obfd
->archive_head
;
2367 const char *filename
;
2369 /* Make a temp directory to hold the contents. */
2370 dir
= make_tempdir (bfd_get_filename (obfd
));
2372 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2375 if (strip_symbols
== STRIP_ALL
)
2376 obfd
->has_armap
= FALSE
;
2378 obfd
->has_armap
= ibfd
->has_armap
;
2379 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2382 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2386 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2388 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2391 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2392 goto cleanup_and_exit
;
2395 while (!status
&& this_element
!= NULL
)
2401 int stat_status
= 0;
2402 bfd_boolean del
= TRUE
;
2403 bfd_boolean ok_object
;
2405 /* PR binutils/17533: Do not allow directory traversal
2406 outside of the current directory tree by archive members. */
2407 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2409 non_fatal (_("illegal pathname found in archive member: %s"),
2410 bfd_get_filename (this_element
));
2412 goto cleanup_and_exit
;
2415 /* Create an output file for this member. */
2416 output_name
= concat (dir
, "/",
2417 bfd_get_filename (this_element
), (char *) 0);
2419 /* If the file already exists, make another temp dir. */
2420 if (stat (output_name
, &buf
) >= 0)
2422 output_name
= make_tempdir (output_name
);
2423 if (output_name
== NULL
)
2425 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2428 goto cleanup_and_exit
;
2431 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2432 l
->name
= output_name
;
2436 output_name
= concat (output_name
, "/",
2437 bfd_get_filename (this_element
), (char *) 0);
2442 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2444 if (stat_status
!= 0)
2445 non_fatal (_("internal stat error on %s"),
2446 bfd_get_filename (this_element
));
2449 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2450 l
->name
= output_name
;
2455 ok_object
= bfd_check_format (this_element
, bfd_object
);
2457 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2458 _("Unable to recognise the format of file"));
2460 /* PR binutils/3110: Cope with archives
2461 containing multiple target types. */
2462 if (force_output_target
|| !ok_object
)
2463 output_bfd
= bfd_openw (output_name
, output_target
);
2465 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2467 if (output_bfd
== NULL
)
2469 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2471 goto cleanup_and_exit
;
2476 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2478 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2479 /* Try again as an unknown object file. */
2481 else if (!bfd_close (output_bfd
))
2483 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2484 /* Error in new object file. Don't change archive. */
2491 del
= !copy_unknown_object (this_element
, output_bfd
);
2492 if (!bfd_close_all_done (output_bfd
))
2494 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2495 /* Error in new object file. Don't change archive. */
2502 unlink (output_name
);
2507 if (preserve_dates
&& stat_status
== 0)
2508 set_times (output_name
, &buf
);
2510 /* Open the newly output file and attach to our list. */
2511 output_bfd
= bfd_openr (output_name
, output_target
);
2513 l
->obfd
= output_bfd
;
2516 ptr
= &output_bfd
->archive_next
;
2518 last_element
= this_element
;
2520 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2522 bfd_close (last_element
);
2527 filename
= bfd_get_filename (obfd
);
2528 if (!bfd_close (obfd
))
2531 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2534 filename
= bfd_get_filename (ibfd
);
2535 if (!bfd_close (ibfd
))
2538 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2542 /* Delete all the files that we opened. */
2543 for (l
= list
; l
!= NULL
; l
= l
->next
)
2545 if (l
->obfd
== NULL
)
2549 bfd_close (l
->obfd
);
2558 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2560 /* This is only relevant to Coff targets. */
2561 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2564 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2565 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2566 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2570 /* The top-level control. */
2573 copy_file (const char *input_filename
, const char *output_filename
,
2574 const char *input_target
, const char *output_target
,
2575 const bfd_arch_info_type
*input_arch
)
2578 char **obj_matching
;
2579 char **core_matching
;
2580 off_t size
= get_file_size (input_filename
);
2585 non_fatal (_("error: the input file '%s' is empty"),
2591 /* To allow us to do "strip *" without dying on the first
2592 non-object file, failures are nonfatal. */
2593 ibfd
= bfd_openr (input_filename
, input_target
);
2596 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2601 switch (do_debug_sections
)
2605 case compress_gnu_zlib
:
2606 case compress_gabi_zlib
:
2607 ibfd
->flags
|= BFD_COMPRESS
;
2608 /* Don't check if input is ELF here since this information is
2609 only available after bfd_check_format_matches is called. */
2610 if (do_debug_sections
!= compress_gnu_zlib
)
2611 ibfd
->flags
|= BFD_COMPRESS_GABI
;
2614 ibfd
->flags
|= BFD_DECOMPRESS
;
2620 if (bfd_check_format (ibfd
, bfd_archive
))
2622 bfd_boolean force_output_target
;
2625 /* bfd_get_target does not return the correct value until
2626 bfd_check_format succeeds. */
2627 if (output_target
== NULL
)
2629 output_target
= bfd_get_target (ibfd
);
2630 force_output_target
= FALSE
;
2633 force_output_target
= TRUE
;
2635 obfd
= bfd_openw (output_filename
, output_target
);
2638 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2642 /* This is a no-op on non-Coff targets. */
2643 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2645 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2647 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2652 /* bfd_get_target does not return the correct value until
2653 bfd_check_format succeeds. */
2654 if (output_target
== NULL
)
2655 output_target
= bfd_get_target (ibfd
);
2657 obfd
= bfd_openw (output_filename
, output_target
);
2660 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2664 /* This is a no-op on non-Coff targets. */
2665 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2667 if (! copy_object (ibfd
, obfd
, input_arch
))
2670 /* PR 17512: file: 0f15796a.
2671 If the file could not be copied it may not be in a writeable
2672 state. So use bfd_close_all_done to avoid the possibility of
2673 writing uninitialised data into the file. */
2674 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2677 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2681 if (!bfd_close (ibfd
))
2684 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2690 bfd_error_type obj_error
= bfd_get_error ();
2691 bfd_error_type core_error
;
2693 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2695 /* This probably can't happen.. */
2696 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2697 free (obj_matching
);
2701 core_error
= bfd_get_error ();
2702 /* Report the object error in preference to the core error. */
2703 if (obj_error
!= core_error
)
2704 bfd_set_error (obj_error
);
2706 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2708 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2710 list_matching_formats (obj_matching
);
2711 free (obj_matching
);
2713 if (core_error
== bfd_error_file_ambiguously_recognized
)
2715 list_matching_formats (core_matching
);
2716 free (core_matching
);
2723 /* Add a name to the section renaming list. */
2726 add_section_rename (const char * old_name
, const char * new_name
,
2729 section_rename
* srename
;
2731 /* Check for conflicts first. */
2732 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2733 if (strcmp (srename
->old_name
, old_name
) == 0)
2735 /* Silently ignore duplicate definitions. */
2736 if (strcmp (srename
->new_name
, new_name
) == 0
2737 && srename
->flags
== flags
)
2740 fatal (_("Multiple renames of section %s"), old_name
);
2743 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2745 srename
->old_name
= old_name
;
2746 srename
->new_name
= new_name
;
2747 srename
->flags
= flags
;
2748 srename
->next
= section_rename_list
;
2750 section_rename_list
= srename
;
2753 /* Check the section rename list for a new name of the input section
2754 ISECTION. Return the new name if one is found.
2755 Also set RETURNED_FLAGS to the flags to be used for this section. */
2758 find_section_rename (bfd
* ibfd ATTRIBUTE_UNUSED
, sec_ptr isection
,
2759 flagword
* returned_flags
)
2761 const char * old_name
= bfd_section_name (ibfd
, isection
);
2762 section_rename
* srename
;
2764 /* Default to using the flags of the input section. */
2765 * returned_flags
= bfd_get_section_flags (ibfd
, isection
);
2767 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2768 if (strcmp (srename
->old_name
, old_name
) == 0)
2770 if (srename
->flags
!= (flagword
) -1)
2771 * returned_flags
= srename
->flags
;
2773 return srename
->new_name
;
2779 /* Once each of the sections is copied, we may still need to do some
2780 finalization work for private section headers. Do that here. */
2783 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
2785 /* Allow the BFD backend to copy any private data it understands
2786 from the input section to the output section. */
2787 if (! bfd_copy_private_header_data (ibfd
, obfd
))
2790 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2791 _("error in private header data"));
2795 /* All went well. */
2799 /* Create a section in OBFD with the same
2800 name and attributes as ISECTION in IBFD. */
2803 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2805 bfd
*obfd
= (bfd
*) obfdarg
;
2806 struct section_list
*p
;
2814 char *prefix
= NULL
;
2815 bfd_boolean make_nobits
;
2817 if (is_strip_section (ibfd
, isection
))
2820 /* Get the, possibly new, name of the output section. */
2821 name
= find_section_rename (ibfd
, isection
, & flags
);
2823 /* Prefix sections. */
2824 if ((prefix_alloc_sections_string
)
2825 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
2826 prefix
= prefix_alloc_sections_string
;
2827 else if (prefix_sections_string
)
2828 prefix
= prefix_sections_string
;
2834 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
2840 make_nobits
= FALSE
;
2842 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2843 SECTION_CONTEXT_SET_FLAGS
);
2845 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
2846 else if (strip_symbols
== STRIP_NONDEBUG
2847 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
2848 && !is_nondebug_keep_contents_section (ibfd
, isection
))
2850 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
2851 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
2855 /* Twiddle the input section flags so that it seems to
2856 elf.c:copy_private_bfd_data that section flags have not
2857 changed between input and output sections. This hack
2858 prevents wholesale rewriting of the program headers. */
2859 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
2863 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
2865 if (osection
== NULL
)
2867 err
= _("failed to create output section");
2872 elf_section_type (osection
) = SHT_NOBITS
;
2874 size
= bfd_section_size (ibfd
, isection
);
2875 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
2877 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
2878 else if (extract_symbol
)
2880 if (! bfd_set_section_size (obfd
, osection
, size
))
2882 err
= _("failed to set size");
2886 vma
= bfd_section_vma (ibfd
, isection
);
2887 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2888 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
2891 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
2897 vma
+= change_section_address
;
2899 if (! bfd_set_section_vma (obfd
, osection
, vma
))
2901 err
= _("failed to set vma");
2905 lma
= isection
->lma
;
2906 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2907 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
2910 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
2916 lma
+= change_section_address
;
2918 osection
->lma
= lma
;
2920 /* FIXME: This is probably not enough. If we change the LMA we
2921 may have to recompute the header for the file as well. */
2922 if (!bfd_set_section_alignment (obfd
,
2924 bfd_section_alignment (ibfd
, isection
)))
2926 err
= _("failed to set alignment");
2930 /* Copy merge entity size. */
2931 osection
->entsize
= isection
->entsize
;
2933 /* Copy compress status. */
2934 osection
->compress_status
= isection
->compress_status
;
2936 /* This used to be mangle_section; we do here to avoid using
2937 bfd_get_section_by_name since some formats allow multiple
2938 sections with the same name. */
2939 isection
->output_section
= osection
;
2940 isection
->output_offset
= 0;
2942 /* Do not copy backend data if --extract-symbol is passed; anything
2943 that needs to look at the section contents will fail. */
2947 if ((isection
->flags
& SEC_GROUP
) != 0)
2949 asymbol
*gsym
= group_signature (isection
);
2953 gsym
->flags
|= BSF_KEEP
;
2954 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
2955 elf_group_id (isection
) = gsym
;
2959 /* Allow the BFD backend to copy any private data it understands
2960 from the input section to the output section. */
2961 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
2963 err
= _("failed to copy private data");
2967 /* All went well. */
2972 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
2975 /* Return TRUE if input section ISECTION should be skipped. */
2978 skip_section (bfd
*ibfd
, sec_ptr isection
)
2984 /* If we have already failed earlier on,
2985 do not keep on generating complaints now. */
2992 if (is_strip_section (ibfd
, isection
))
2995 if (is_update_section (ibfd
, isection
))
2998 flags
= bfd_get_section_flags (ibfd
, isection
);
2999 if ((flags
& SEC_GROUP
) != 0)
3002 osection
= isection
->output_section
;
3003 size
= bfd_get_section_size (isection
);
3005 if (size
== 0 || osection
== 0)
3011 /* Copy relocations in input section ISECTION of IBFD to an output
3012 section with the same name in OBFDARG. If stripping then don't
3013 copy any relocation info. */
3016 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3018 bfd
*obfd
= (bfd
*) obfdarg
;
3024 if (skip_section (ibfd
, isection
))
3027 osection
= isection
->output_section
;
3029 /* Core files and DWO files do not need to be relocated. */
3030 if (bfd_get_format (obfd
) == bfd_core
|| strip_symbols
== STRIP_NONDWO
)
3034 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3038 /* Do not complain if the target does not support relocations. */
3039 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3044 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3052 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3053 osection
->flags
&= ~SEC_RELOC
;
3057 relpp
= (arelent
**) xmalloc (relsize
);
3058 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3062 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3063 _("relocation count is negative"));
3067 if (strip_symbols
== STRIP_ALL
)
3069 /* Remove relocations which are not in
3070 keep_strip_specific_list. */
3071 arelent
**temp_relpp
;
3072 long temp_relcount
= 0;
3075 temp_relpp
= (arelent
**) xmalloc (relsize
);
3076 for (i
= 0; i
< relcount
; i
++)
3078 /* PR 17512: file: 9e907e0c. */
3079 if (relpp
[i
]->sym_ptr_ptr
)
3080 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3081 keep_specific_htab
))
3082 temp_relpp
[temp_relcount
++] = relpp
[i
];
3084 relcount
= temp_relcount
;
3089 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3092 osection
->flags
&= ~SEC_RELOC
;
3098 /* Copy the data of input section ISECTION of IBFD
3099 to an output section with the same name in OBFD. */
3102 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3104 bfd
*obfd
= (bfd
*) obfdarg
;
3105 struct section_list
*p
;
3109 if (skip_section (ibfd
, isection
))
3112 osection
= isection
->output_section
;
3113 /* The output SHF_COMPRESSED section size is different from input if
3114 ELF classes of input and output aren't the same. We must use the
3115 output section size here, which has been updated in setup_section
3116 via bfd_convert_section_size. */
3117 size
= bfd_get_section_size (osection
);
3119 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3120 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3122 bfd_byte
*memhunk
= NULL
;
3124 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
3125 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
3129 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3135 /* We don't handle leftover bytes (too many possible behaviors,
3136 and we don't know what the user wants). The section length
3137 must be a multiple of the number of bytes to swap. */
3138 if ((size
% reverse_bytes
) == 0)
3143 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3144 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3146 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3149 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3150 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3154 /* User must pad the section up in order to do this. */
3155 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3156 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3161 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3162 char *from
= (char *) memhunk
+ copy_byte
;
3163 char *to
= (char *) memhunk
;
3164 char *end
= (char *) memhunk
+ size
;
3167 for (; from
< end
; from
+= interleave
)
3168 for (i
= 0; i
< copy_width
; i
++)
3170 if (&from
[i
] >= end
)
3175 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3176 osection
->lma
/= interleave
;
3179 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3182 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3187 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3188 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3189 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3191 void *memhunk
= xmalloc (size
);
3193 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3194 flag--they can just remove the section entirely and add it
3195 back again. However, we do permit them to turn on the
3196 SEC_HAS_CONTENTS flag, and take it to mean that the section
3197 contents should be zeroed out. */
3199 memset (memhunk
, 0, size
);
3200 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3203 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3210 /* Get all the sections. This is used when --gap-fill or --pad-to is
3214 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3216 asection
***secppp
= (asection
***) secppparg
;
3218 **secppp
= osection
;
3222 /* Sort sections by VMA. This is called via qsort, and is used when
3223 --gap-fill or --pad-to is used. We force non loadable or empty
3224 sections to the front, where they are easier to ignore. */
3227 compare_section_lma (const void *arg1
, const void *arg2
)
3229 const asection
*const *sec1
= (const asection
* const *) arg1
;
3230 const asection
*const *sec2
= (const asection
* const *) arg2
;
3231 flagword flags1
, flags2
;
3233 /* Sort non loadable sections to the front. */
3234 flags1
= (*sec1
)->flags
;
3235 flags2
= (*sec2
)->flags
;
3236 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3237 || (flags1
& SEC_LOAD
) == 0)
3239 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3240 && (flags2
& SEC_LOAD
) != 0)
3245 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3246 || (flags2
& SEC_LOAD
) == 0)
3250 /* Sort sections by LMA. */
3251 if ((*sec1
)->lma
> (*sec2
)->lma
)
3253 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3256 /* Sort sections with the same LMA by size. */
3257 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3259 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3265 /* Mark all the symbols which will be used in output relocations with
3266 the BSF_KEEP flag so that those symbols will not be stripped.
3268 Ignore relocations which will not appear in the output file. */
3271 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3273 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3278 /* Ignore an input section with no corresponding output section. */
3279 if (isection
->output_section
== NULL
)
3282 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3285 /* Do not complain if the target does not support relocations. */
3286 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3288 bfd_fatal (bfd_get_filename (ibfd
));
3294 relpp
= (arelent
**) xmalloc (relsize
);
3295 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3297 bfd_fatal (bfd_get_filename (ibfd
));
3299 /* Examine each symbol used in a relocation. If it's not one of the
3300 special bfd section symbols, then mark it with BSF_KEEP. */
3301 for (i
= 0; i
< relcount
; i
++)
3303 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3304 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3305 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3306 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3313 /* Write out debugging information. */
3316 write_debugging_info (bfd
*obfd
, void *dhandle
,
3317 long *symcountp ATTRIBUTE_UNUSED
,
3318 asymbol
***symppp ATTRIBUTE_UNUSED
)
3320 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3321 return write_ieee_debugging_info (obfd
, dhandle
);
3323 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3324 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3326 bfd_byte
*syms
, *strings
;
3327 bfd_size_type symsize
, stringsize
;
3328 asection
*stabsec
, *stabstrsec
;
3331 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3336 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3337 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3338 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3340 || stabstrsec
== NULL
3341 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3342 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3343 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3344 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3346 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3347 _("can't create debugging section"));
3351 /* We can get away with setting the section contents now because
3352 the next thing the caller is going to do is copy over the
3353 real sections. We may someday have to split the contents
3354 setting out of this function. */
3355 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3356 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3359 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3360 _("can't set debugging section contents"));
3367 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3368 _("don't know how to write debugging information for %s"),
3369 bfd_get_target (obfd
));
3373 /* If neither -D nor -U was specified explicitly,
3374 then use the configured default. */
3376 default_deterministic (void)
3378 if (deterministic
< 0)
3379 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3383 strip_main (int argc
, char *argv
[])
3385 char *input_target
= NULL
;
3386 char *output_target
= NULL
;
3387 bfd_boolean show_version
= FALSE
;
3388 bfd_boolean formats_info
= FALSE
;
3391 char *output_file
= NULL
;
3393 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3394 strip_options
, (int *) 0)) != EOF
)
3399 input_target
= optarg
;
3402 output_target
= optarg
;
3405 input_target
= output_target
= optarg
;
3408 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3409 sections_removed
= TRUE
;
3412 strip_symbols
= STRIP_ALL
;
3416 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3417 strip_symbols
= STRIP_DEBUG
;
3419 case OPTION_STRIP_DWO
:
3420 strip_symbols
= STRIP_DWO
;
3422 case OPTION_STRIP_UNNEEDED
:
3423 strip_symbols
= STRIP_UNNEEDED
;
3426 add_specific_symbol (optarg
, keep_specific_htab
);
3429 add_specific_symbol (optarg
, strip_specific_htab
);
3432 output_file
= optarg
;
3435 preserve_dates
= TRUE
;
3438 deterministic
= TRUE
;
3441 deterministic
= FALSE
;
3444 discard_locals
= LOCALS_ALL
;
3447 discard_locals
= LOCALS_START_L
;
3453 show_version
= TRUE
;
3455 case OPTION_FORMATS_INFO
:
3456 formats_info
= TRUE
;
3458 case OPTION_ONLY_KEEP_DEBUG
:
3459 strip_symbols
= STRIP_NONDEBUG
;
3461 case OPTION_KEEP_FILE_SYMBOLS
:
3462 keep_file_symbols
= 1;
3465 /* We've been given a long option. */
3472 strip_usage (stdout
, 0);
3474 strip_usage (stderr
, 1);
3485 print_version ("strip");
3487 default_deterministic ();
3489 /* Default is to strip all symbols. */
3490 if (strip_symbols
== STRIP_UNDEF
3491 && discard_locals
== LOCALS_UNDEF
3492 && htab_elements (strip_specific_htab
) == 0)
3493 strip_symbols
= STRIP_ALL
;
3495 if (output_target
== NULL
)
3496 output_target
= input_target
;
3500 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3501 strip_usage (stderr
, 1);
3503 for (; i
< argc
; i
++)
3505 int hold_status
= status
;
3506 struct stat statbuf
;
3509 if (get_file_size (argv
[i
]) < 1)
3516 /* No need to check the return value of stat().
3517 It has already been checked in get_file_size(). */
3518 stat (argv
[i
], &statbuf
);
3520 if (output_file
== NULL
3521 || filename_cmp (argv
[i
], output_file
) == 0)
3522 tmpname
= make_tempname (argv
[i
]);
3524 tmpname
= output_file
;
3526 if (tmpname
== NULL
)
3528 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3529 _("could not create temporary file to hold stripped copy"));
3535 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3539 set_times (tmpname
, &statbuf
);
3540 if (output_file
!= tmpname
)
3541 status
= (smart_rename (tmpname
,
3542 output_file
? output_file
: argv
[i
],
3543 preserve_dates
) != 0);
3545 status
= hold_status
;
3548 unlink_if_ordinary (tmpname
);
3549 if (output_file
!= tmpname
)
3556 /* Set up PE subsystem. */
3559 set_pe_subsystem (const char *s
)
3561 const char *version
, *subsystem
;
3571 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3572 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3573 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3574 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3575 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3576 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3577 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3578 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3579 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3580 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3586 /* Check for the presence of a version number. */
3587 version
= strchr (s
, ':');
3588 if (version
== NULL
)
3592 int len
= version
- s
;
3596 version
= copy
+ 1 + len
;
3597 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3599 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3601 non_fatal (_("%s: bad version in PE subsystem"), s
);
3604 /* Check for numeric subsystem. */
3605 value
= (short) strtol (subsystem
, ©
, 0);
3608 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3609 if (v
[i
].value
== value
)
3611 pe_subsystem
= value
;
3612 set_def
= v
[i
].set_def
;
3618 /* Search for subsystem by name. */
3619 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3620 if (strcmp (subsystem
, v
[i
].name
) == 0)
3622 pe_subsystem
= v
[i
].value
;
3623 set_def
= v
[i
].set_def
;
3631 fatal (_("unknown PE subsystem: %s"), s
);
3636 if (pe_file_alignment
== (bfd_vma
) -1)
3637 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3638 if (pe_section_alignment
== (bfd_vma
) -1)
3639 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3643 free ((char *) subsystem
);
3646 /* Convert EFI target to PEI target. */
3649 convert_efi_target (char *efi
)
3655 if (strcmp (efi
+ 4, "ia32") == 0)
3657 /* Change ia32 to i386. */
3662 else if (strcmp (efi
+ 4, "x86_64") == 0)
3664 /* Change x86_64 to x86-64. */
3669 /* Allocate and return a pointer to a struct section_add, initializing the
3670 structure using ARG, a string in the format "sectionname=filename".
3671 The returned structure will have its next pointer set to NEXT. The
3672 OPTION field is the name of the command line option currently being
3673 parsed, and is only used if an error needs to be reported. */
3675 static struct section_add
*
3676 init_section_add (const char *arg
,
3677 struct section_add
*next
,
3680 struct section_add
*pa
;
3683 s
= strchr (arg
, '=');
3685 fatal (_("bad format for %s"), option
);
3687 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3688 pa
->name
= xstrndup (arg
, s
- arg
);
3689 pa
->filename
= s
+ 1;
3691 pa
->contents
= NULL
;
3697 /* Load the file specified in PA, allocating memory to hold the file
3698 contents, and store a pointer to the allocated memory in the contents
3699 field of PA. The size field of PA is also updated. All errors call
3703 section_add_load_file (struct section_add
*pa
)
3708 /* We don't use get_file_size so that we can do
3709 --add-section .note.GNU_stack=/dev/null
3710 get_file_size doesn't work on /dev/null. */
3712 f
= fopen (pa
->filename
, FOPEN_RB
);
3714 fatal (_("cannot open: %s: %s"),
3715 pa
->filename
, strerror (errno
));
3719 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3727 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3730 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3732 fatal (_("%s: fread failed"), pa
->filename
);
3743 copy_main (int argc
, char *argv
[])
3745 char *input_filename
= NULL
;
3746 char *output_filename
= NULL
;
3748 char *input_target
= NULL
;
3749 char *output_target
= NULL
;
3750 bfd_boolean show_version
= FALSE
;
3751 bfd_boolean change_warn
= TRUE
;
3752 bfd_boolean formats_info
= FALSE
;
3754 struct stat statbuf
;
3755 const bfd_arch_info_type
*input_arch
= NULL
;
3757 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3758 copy_options
, (int *) 0)) != EOF
)
3763 copy_byte
= atoi (optarg
);
3765 fatal (_("byte number must be non-negative"));
3769 input_arch
= bfd_scan_arch (optarg
);
3770 if (input_arch
== NULL
)
3771 fatal (_("architecture %s unknown"), optarg
);
3777 interleave
= atoi (optarg
);
3779 fatal (_("interleave must be positive"));
3785 case OPTION_INTERLEAVE_WIDTH
:
3786 copy_width
= atoi (optarg
);
3788 fatal(_("interleave width must be positive"));
3792 case 's': /* "source" - 'I' is preferred */
3793 input_target
= optarg
;
3797 case 'd': /* "destination" - 'O' is preferred */
3798 output_target
= optarg
;
3802 input_target
= output_target
= optarg
;
3806 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
3807 sections_copied
= TRUE
;
3811 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3812 sections_removed
= TRUE
;
3816 strip_symbols
= STRIP_ALL
;
3820 strip_symbols
= STRIP_DEBUG
;
3823 case OPTION_STRIP_DWO
:
3824 strip_symbols
= STRIP_DWO
;
3827 case OPTION_STRIP_UNNEEDED
:
3828 strip_symbols
= STRIP_UNNEEDED
;
3831 case OPTION_ONLY_KEEP_DEBUG
:
3832 strip_symbols
= STRIP_NONDEBUG
;
3835 case OPTION_KEEP_FILE_SYMBOLS
:
3836 keep_file_symbols
= 1;
3839 case OPTION_ADD_GNU_DEBUGLINK
:
3840 long_section_names
= ENABLE
;
3841 gnu_debuglink_filename
= optarg
;
3845 add_specific_symbol (optarg
, keep_specific_htab
);
3849 add_specific_symbol (optarg
, strip_specific_htab
);
3852 case OPTION_STRIP_UNNEEDED_SYMBOL
:
3853 add_specific_symbol (optarg
, strip_unneeded_htab
);
3857 add_specific_symbol (optarg
, localize_specific_htab
);
3860 case OPTION_GLOBALIZE_SYMBOL
:
3861 add_specific_symbol (optarg
, globalize_specific_htab
);
3865 add_specific_symbol (optarg
, keepglobal_specific_htab
);
3869 add_specific_symbol (optarg
, weaken_specific_htab
);
3873 preserve_dates
= TRUE
;
3877 deterministic
= TRUE
;
3881 deterministic
= FALSE
;
3889 discard_locals
= LOCALS_ALL
;
3893 discard_locals
= LOCALS_START_L
;
3901 show_version
= TRUE
;
3904 case OPTION_FORMATS_INFO
:
3905 formats_info
= TRUE
;
3912 case OPTION_ADD_SECTION
:
3913 add_sections
= init_section_add (optarg
, add_sections
,
3915 section_add_load_file (add_sections
);
3918 case OPTION_UPDATE_SECTION
:
3919 update_sections
= init_section_add (optarg
, update_sections
,
3920 "--update-section");
3921 section_add_load_file (update_sections
);
3924 case OPTION_DUMP_SECTION
:
3925 dump_sections
= init_section_add (optarg
, dump_sections
,
3929 case OPTION_CHANGE_START
:
3930 change_start
= parse_vma (optarg
, "--change-start");
3933 case OPTION_CHANGE_SECTION_ADDRESS
:
3934 case OPTION_CHANGE_SECTION_LMA
:
3935 case OPTION_CHANGE_SECTION_VMA
:
3937 struct section_list
* p
;
3938 unsigned int context
= 0;
3942 char *option
= NULL
;
3947 case OPTION_CHANGE_SECTION_ADDRESS
:
3948 option
= "--change-section-address";
3949 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
3951 case OPTION_CHANGE_SECTION_LMA
:
3952 option
= "--change-section-lma";
3953 context
= SECTION_CONTEXT_ALTER_LMA
;
3955 case OPTION_CHANGE_SECTION_VMA
:
3956 option
= "--change-section-vma";
3957 context
= SECTION_CONTEXT_ALTER_VMA
;
3961 s
= strchr (optarg
, '=');
3964 s
= strchr (optarg
, '+');
3967 s
= strchr (optarg
, '-');
3969 fatal (_("bad format for %s"), option
);
3974 /* Correct the context. */
3977 case OPTION_CHANGE_SECTION_ADDRESS
:
3978 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
3980 case OPTION_CHANGE_SECTION_LMA
:
3981 context
= SECTION_CONTEXT_SET_LMA
;
3983 case OPTION_CHANGE_SECTION_VMA
:
3984 context
= SECTION_CONTEXT_SET_VMA
;
3990 name
= (char *) xmalloc (len
+ 1);
3991 strncpy (name
, optarg
, len
);
3994 p
= find_section_list (name
, TRUE
, context
);
3996 val
= parse_vma (s
+ 1, option
);
4002 case OPTION_CHANGE_SECTION_ADDRESS
:
4006 case OPTION_CHANGE_SECTION_LMA
:
4010 case OPTION_CHANGE_SECTION_VMA
:
4017 case OPTION_CHANGE_ADDRESSES
:
4018 change_section_address
= parse_vma (optarg
, "--change-addresses");
4019 change_start
= change_section_address
;
4022 case OPTION_CHANGE_WARNINGS
:
4026 case OPTION_CHANGE_LEADING_CHAR
:
4027 change_leading_char
= TRUE
;
4030 case OPTION_COMPRESS_DEBUG_SECTIONS
:
4033 if (strcasecmp (optarg
, "none") == 0)
4034 do_debug_sections
= decompress
;
4035 else if (strcasecmp (optarg
, "zlib") == 0)
4036 do_debug_sections
= compress_zlib
;
4037 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
4038 do_debug_sections
= compress_gnu_zlib
;
4039 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
4040 do_debug_sections
= compress_gabi_zlib
;
4042 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4046 do_debug_sections
= compress
;
4049 case OPTION_DEBUGGING
:
4050 convert_debugging
= TRUE
;
4053 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
4054 do_debug_sections
= decompress
;
4057 case OPTION_GAP_FILL
:
4059 bfd_vma gap_fill_vma
;
4061 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4062 gap_fill
= (bfd_byte
) gap_fill_vma
;
4063 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4067 sprintf_vma (buff
, gap_fill_vma
);
4069 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4072 gap_fill_set
= TRUE
;
4076 case OPTION_NO_CHANGE_WARNINGS
:
4077 change_warn
= FALSE
;
4081 pad_to
= parse_vma (optarg
, "--pad-to");
4085 case OPTION_REMOVE_LEADING_CHAR
:
4086 remove_leading_char
= TRUE
;
4089 case OPTION_REDEFINE_SYM
:
4091 /* Push this redefinition onto redefine_symbol_list. */
4095 const char *nextarg
;
4096 char *source
, *target
;
4098 s
= strchr (optarg
, '=');
4100 fatal (_("bad format for %s"), "--redefine-sym");
4103 source
= (char *) xmalloc (len
+ 1);
4104 strncpy (source
, optarg
, len
);
4108 len
= strlen (nextarg
);
4109 target
= (char *) xmalloc (len
+ 1);
4110 strcpy (target
, nextarg
);
4112 redefine_list_append ("--redefine-sym", source
, target
);
4119 case OPTION_REDEFINE_SYMS
:
4120 add_redefine_syms_file (optarg
);
4123 case OPTION_SET_SECTION_FLAGS
:
4125 struct section_list
*p
;
4130 s
= strchr (optarg
, '=');
4132 fatal (_("bad format for %s"), "--set-section-flags");
4135 name
= (char *) xmalloc (len
+ 1);
4136 strncpy (name
, optarg
, len
);
4139 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4141 p
->flags
= parse_flags (s
+ 1);
4145 case OPTION_RENAME_SECTION
:
4148 const char *eq
, *fl
;
4153 eq
= strchr (optarg
, '=');
4155 fatal (_("bad format for %s"), "--rename-section");
4159 fatal (_("bad format for %s"), "--rename-section");
4161 old_name
= (char *) xmalloc (len
+ 1);
4162 strncpy (old_name
, optarg
, len
);
4166 fl
= strchr (eq
, ',');
4169 flags
= parse_flags (fl
+ 1);
4179 fatal (_("bad format for %s"), "--rename-section");
4181 new_name
= (char *) xmalloc (len
+ 1);
4182 strncpy (new_name
, eq
, len
);
4185 add_section_rename (old_name
, new_name
, flags
);
4189 case OPTION_SET_START
:
4190 set_start
= parse_vma (optarg
, "--set-start");
4191 set_start_set
= TRUE
;
4194 case OPTION_SREC_LEN
:
4195 Chunk
= parse_vma (optarg
, "--srec-len");
4198 case OPTION_SREC_FORCES3
:
4202 case OPTION_STRIP_SYMBOLS
:
4203 add_specific_symbols (optarg
, strip_specific_htab
);
4206 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4207 add_specific_symbols (optarg
, strip_unneeded_htab
);
4210 case OPTION_KEEP_SYMBOLS
:
4211 add_specific_symbols (optarg
, keep_specific_htab
);
4214 case OPTION_LOCALIZE_HIDDEN
:
4215 localize_hidden
= TRUE
;
4218 case OPTION_LOCALIZE_SYMBOLS
:
4219 add_specific_symbols (optarg
, localize_specific_htab
);
4222 case OPTION_LONG_SECTION_NAMES
:
4223 if (!strcmp ("enable", optarg
))
4224 long_section_names
= ENABLE
;
4225 else if (!strcmp ("disable", optarg
))
4226 long_section_names
= DISABLE
;
4227 else if (!strcmp ("keep", optarg
))
4228 long_section_names
= KEEP
;
4230 fatal (_("unknown long section names option '%s'"), optarg
);
4233 case OPTION_GLOBALIZE_SYMBOLS
:
4234 add_specific_symbols (optarg
, globalize_specific_htab
);
4237 case OPTION_KEEPGLOBAL_SYMBOLS
:
4238 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4241 case OPTION_WEAKEN_SYMBOLS
:
4242 add_specific_symbols (optarg
, weaken_specific_htab
);
4245 case OPTION_ALT_MACH_CODE
:
4246 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4247 if (use_alt_mach_code
== 0)
4248 fatal (_("unable to parse alternative machine code"));
4251 case OPTION_PREFIX_SYMBOLS
:
4252 prefix_symbols_string
= optarg
;
4255 case OPTION_PREFIX_SECTIONS
:
4256 prefix_sections_string
= optarg
;
4259 case OPTION_PREFIX_ALLOC_SECTIONS
:
4260 prefix_alloc_sections_string
= optarg
;
4263 case OPTION_READONLY_TEXT
:
4264 bfd_flags_to_set
|= WP_TEXT
;
4265 bfd_flags_to_clear
&= ~WP_TEXT
;
4268 case OPTION_WRITABLE_TEXT
:
4269 bfd_flags_to_clear
|= WP_TEXT
;
4270 bfd_flags_to_set
&= ~WP_TEXT
;
4274 bfd_flags_to_set
|= D_PAGED
;
4275 bfd_flags_to_clear
&= ~D_PAGED
;
4279 bfd_flags_to_clear
|= D_PAGED
;
4280 bfd_flags_to_set
&= ~D_PAGED
;
4283 case OPTION_EXTRACT_DWO
:
4284 strip_symbols
= STRIP_NONDWO
;
4287 case OPTION_EXTRACT_SYMBOL
:
4288 extract_symbol
= TRUE
;
4291 case OPTION_REVERSE_BYTES
:
4293 int prev
= reverse_bytes
;
4295 reverse_bytes
= atoi (optarg
);
4296 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4297 fatal (_("number of bytes to reverse must be positive and even"));
4299 if (prev
&& prev
!= reverse_bytes
)
4300 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4305 case OPTION_FILE_ALIGNMENT
:
4306 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4312 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4314 || (*end
!= '.' && *end
!= '\0'))
4315 non_fatal (_("%s: invalid reserve value for --heap"),
4317 else if (*end
!= '\0')
4319 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4321 non_fatal (_("%s: invalid commit value for --heap"),
4327 case OPTION_IMAGE_BASE
:
4328 pe_image_base
= parse_vma (optarg
, "--image-base");
4331 case OPTION_SECTION_ALIGNMENT
:
4332 pe_section_alignment
= parse_vma (optarg
,
4333 "--section-alignment");
4336 case OPTION_SUBSYSTEM
:
4337 set_pe_subsystem (optarg
);
4343 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4345 || (*end
!= '.' && *end
!= '\0'))
4346 non_fatal (_("%s: invalid reserve value for --stack"),
4348 else if (*end
!= '\0')
4350 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4352 non_fatal (_("%s: invalid commit value for --stack"),
4359 /* We've been given a long option. */
4364 copy_usage (stdout
, 0);
4367 copy_usage (stderr
, 1);
4378 print_version ("objcopy");
4380 if (interleave
&& copy_byte
== -1)
4381 fatal (_("interleave start byte must be set with --byte"));
4383 if (copy_byte
>= interleave
)
4384 fatal (_("byte number must be less than interleave"));
4386 if (copy_width
> interleave
- copy_byte
)
4387 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4389 if (optind
== argc
|| optind
+ 2 < argc
)
4390 copy_usage (stderr
, 1);
4392 input_filename
= argv
[optind
];
4393 if (optind
+ 1 < argc
)
4394 output_filename
= argv
[optind
+ 1];
4396 default_deterministic ();
4398 /* Default is to strip no symbols. */
4399 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4400 strip_symbols
= STRIP_NONE
;
4402 if (output_target
== NULL
)
4403 output_target
= input_target
;
4405 /* Convert input EFI target to PEI target. */
4406 if (input_target
!= NULL
4407 && strncmp (input_target
, "efi-", 4) == 0)
4411 efi
= xstrdup (output_target
+ 4);
4412 if (strncmp (efi
, "bsdrv-", 6) == 0
4413 || strncmp (efi
, "rtdrv-", 6) == 0)
4415 else if (strncmp (efi
, "app-", 4) != 0)
4416 fatal (_("unknown input EFI target: %s"), input_target
);
4419 convert_efi_target (efi
);
4422 /* Convert output EFI target to PEI target. */
4423 if (output_target
!= NULL
4424 && strncmp (output_target
, "efi-", 4) == 0)
4428 efi
= xstrdup (output_target
+ 4);
4429 if (strncmp (efi
, "app-", 4) == 0)
4431 if (pe_subsystem
== -1)
4432 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4434 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4436 if (pe_subsystem
== -1)
4437 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4440 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4442 if (pe_subsystem
== -1)
4443 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4447 fatal (_("unknown output EFI target: %s"), output_target
);
4449 if (pe_file_alignment
== (bfd_vma
) -1)
4450 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4451 if (pe_section_alignment
== (bfd_vma
) -1)
4452 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4454 output_target
= efi
;
4455 convert_efi_target (efi
);
4459 if (stat (input_filename
, & statbuf
) < 0)
4460 fatal (_("warning: could not locate '%s'. System error message: %s"),
4461 input_filename
, strerror (errno
));
4463 /* If there is no destination file, or the source and destination files
4464 are the same, then create a temp and rename the result into the input. */
4465 if (output_filename
== NULL
4466 || filename_cmp (input_filename
, output_filename
) == 0)
4467 tmpname
= make_tempname (input_filename
);
4469 tmpname
= output_filename
;
4471 if (tmpname
== NULL
)
4472 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4473 input_filename
, strerror (errno
));
4475 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4479 set_times (tmpname
, &statbuf
);
4480 if (tmpname
!= output_filename
)
4481 status
= (smart_rename (tmpname
, input_filename
,
4482 preserve_dates
) != 0);
4485 unlink_if_ordinary (tmpname
);
4489 struct section_list
*p
;
4491 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4495 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4499 sprintf_vma (buff
, p
->vma_val
);
4501 /* xgettext:c-format */
4502 non_fatal (_("%s %s%c0x%s never used"),
4503 "--change-section-vma",
4505 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4509 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4513 sprintf_vma (buff
, p
->lma_val
);
4515 /* xgettext:c-format */
4516 non_fatal (_("%s %s%c0x%s never used"),
4517 "--change-section-lma",
4519 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4530 main (int argc
, char *argv
[])
4532 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4533 setlocale (LC_MESSAGES
, "");
4535 #if defined (HAVE_SETLOCALE)
4536 setlocale (LC_CTYPE
, "");
4538 bindtextdomain (PACKAGE
, LOCALEDIR
);
4539 textdomain (PACKAGE
);
4541 program_name
= argv
[0];
4542 xmalloc_set_program_name (program_name
);
4544 START_PROGRESS (program_name
, 0);
4546 expandargv (&argc
, &argv
);
4548 strip_symbols
= STRIP_UNDEF
;
4549 discard_locals
= LOCALS_UNDEF
;
4552 set_default_bfd_target ();
4556 int i
= strlen (program_name
);
4557 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4558 /* Drop the .exe suffix, if any. */
4559 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4562 program_name
[i
] = '\0';
4565 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4568 create_symbol_htabs ();
4571 bfd_set_error_program_name (argv
[0]);
4574 strip_main (argc
, argv
);
4576 copy_main (argc
, argv
);
4578 END_PROGRESS (program_name
);