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. */
208 } do_debug_sections
= nothing
;
210 /* Whether to change the leading character in symbol names. */
211 static bfd_boolean change_leading_char
= FALSE
;
213 /* Whether to remove the leading character from global symbol names. */
214 static bfd_boolean remove_leading_char
= FALSE
;
216 /* Whether to permit wildcard in symbol comparison. */
217 static bfd_boolean wildcard
= FALSE
;
219 /* True if --localize-hidden is in effect. */
220 static bfd_boolean localize_hidden
= FALSE
;
222 /* List of symbols to strip, keep, localize, keep-global, weaken,
224 static htab_t strip_specific_htab
= NULL
;
225 static htab_t strip_unneeded_htab
= NULL
;
226 static htab_t keep_specific_htab
= NULL
;
227 static htab_t localize_specific_htab
= NULL
;
228 static htab_t globalize_specific_htab
= NULL
;
229 static htab_t keepglobal_specific_htab
= NULL
;
230 static htab_t weaken_specific_htab
= NULL
;
231 static struct redefine_node
*redefine_sym_list
= NULL
;
233 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
234 static bfd_boolean weaken
= FALSE
;
236 /* If this is TRUE, we retain BSF_FILE symbols. */
237 static bfd_boolean keep_file_symbols
= FALSE
;
239 /* Prefix symbols/sections. */
240 static char *prefix_symbols_string
= 0;
241 static char *prefix_sections_string
= 0;
242 static char *prefix_alloc_sections_string
= 0;
244 /* True if --extract-symbol was passed on the command line. */
245 static bfd_boolean extract_symbol
= FALSE
;
247 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
248 of <reverse_bytes> bytes within each output section. */
249 static int reverse_bytes
= 0;
251 /* For Coff objects, we may want to allow or disallow long section names,
252 or preserve them where found in the inputs. Debug info relies on them. */
253 enum long_section_name_handling
260 /* The default long section handling mode is to preserve them.
261 This is also the only behaviour for 'strip'. */
262 static enum long_section_name_handling long_section_names
= KEEP
;
264 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
265 enum command_line_switch
267 OPTION_ADD_SECTION
=150,
268 OPTION_UPDATE_SECTION
,
270 OPTION_CHANGE_ADDRESSES
,
271 OPTION_CHANGE_LEADING_CHAR
,
273 OPTION_CHANGE_SECTION_ADDRESS
,
274 OPTION_CHANGE_SECTION_LMA
,
275 OPTION_CHANGE_SECTION_VMA
,
276 OPTION_CHANGE_WARNINGS
,
277 OPTION_COMPRESS_DEBUG_SECTIONS
,
279 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
281 OPTION_NO_CHANGE_WARNINGS
,
283 OPTION_REMOVE_LEADING_CHAR
,
284 OPTION_SET_SECTION_FLAGS
,
286 OPTION_STRIP_UNNEEDED
,
289 OPTION_REDEFINE_SYMS
,
292 OPTION_STRIP_SYMBOLS
,
293 OPTION_STRIP_UNNEEDED_SYMBOL
,
294 OPTION_STRIP_UNNEEDED_SYMBOLS
,
296 OPTION_LOCALIZE_HIDDEN
,
297 OPTION_LOCALIZE_SYMBOLS
,
298 OPTION_LONG_SECTION_NAMES
,
299 OPTION_GLOBALIZE_SYMBOL
,
300 OPTION_GLOBALIZE_SYMBOLS
,
301 OPTION_KEEPGLOBAL_SYMBOLS
,
302 OPTION_WEAKEN_SYMBOLS
,
303 OPTION_RENAME_SECTION
,
304 OPTION_ALT_MACH_CODE
,
305 OPTION_PREFIX_SYMBOLS
,
306 OPTION_PREFIX_SECTIONS
,
307 OPTION_PREFIX_ALLOC_SECTIONS
,
309 OPTION_ADD_GNU_DEBUGLINK
,
310 OPTION_ONLY_KEEP_DEBUG
,
311 OPTION_KEEP_FILE_SYMBOLS
,
312 OPTION_READONLY_TEXT
,
313 OPTION_WRITABLE_TEXT
,
316 OPTION_EXTRACT_SYMBOL
,
317 OPTION_REVERSE_BYTES
,
318 OPTION_FILE_ALIGNMENT
,
321 OPTION_SECTION_ALIGNMENT
,
323 OPTION_INTERLEAVE_WIDTH
,
329 /* Options to handle if running as "strip". */
331 static struct option strip_options
[] =
333 {"disable-deterministic-archives", no_argument
, 0, 'U'},
334 {"discard-all", no_argument
, 0, 'x'},
335 {"discard-locals", no_argument
, 0, 'X'},
336 {"enable-deterministic-archives", no_argument
, 0, 'D'},
337 {"format", required_argument
, 0, 'F'}, /* Obsolete */
338 {"help", no_argument
, 0, 'h'},
339 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
340 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
341 {"input-target", required_argument
, 0, 'I'},
342 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
343 {"keep-symbol", required_argument
, 0, 'K'},
344 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
345 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
346 {"output-target", required_argument
, 0, 'O'},
347 {"output-file", required_argument
, 0, 'o'},
348 {"preserve-dates", no_argument
, 0, 'p'},
349 {"remove-section", required_argument
, 0, 'R'},
350 {"strip-all", no_argument
, 0, 's'},
351 {"strip-debug", no_argument
, 0, 'S'},
352 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
353 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
354 {"strip-symbol", required_argument
, 0, 'N'},
355 {"target", required_argument
, 0, 'F'},
356 {"verbose", no_argument
, 0, 'v'},
357 {"version", no_argument
, 0, 'V'},
358 {"wildcard", no_argument
, 0, 'w'},
359 {0, no_argument
, 0, 0}
362 /* Options to handle if running as "objcopy". */
364 static struct option copy_options
[] =
366 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
367 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
368 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
369 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
370 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
371 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
372 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
373 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
374 {"binary-architecture", required_argument
, 0, 'B'},
375 {"byte", required_argument
, 0, 'b'},
376 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
377 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
378 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
379 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
380 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
381 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
382 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
383 {"compress-debug-sections", no_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
384 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
385 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
386 {"disable-deterministic-archives", no_argument
, 0, 'U'},
387 {"discard-all", no_argument
, 0, 'x'},
388 {"discard-locals", no_argument
, 0, 'X'},
389 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
390 {"enable-deterministic-archives", no_argument
, 0, 'D'},
391 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
392 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
393 {"format", required_argument
, 0, 'F'}, /* Obsolete */
394 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
395 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
396 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
397 {"help", no_argument
, 0, 'h'},
398 {"impure", no_argument
, 0, OPTION_IMPURE
},
399 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
400 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
401 {"input-target", required_argument
, 0, 'I'},
402 {"interleave", optional_argument
, 0, 'i'},
403 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
404 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
405 {"keep-global-symbol", required_argument
, 0, 'G'},
406 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
407 {"keep-symbol", required_argument
, 0, 'K'},
408 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
409 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
410 {"localize-symbol", required_argument
, 0, 'L'},
411 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
412 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
413 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
414 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
415 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
416 {"only-section", required_argument
, 0, 'j'},
417 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
418 {"output-target", required_argument
, 0, 'O'},
419 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
420 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
421 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
422 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
423 {"preserve-dates", no_argument
, 0, 'p'},
424 {"pure", no_argument
, 0, OPTION_PURE
},
425 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
426 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
427 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
428 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
429 {"remove-section", required_argument
, 0, 'R'},
430 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
431 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
432 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
433 {"set-start", required_argument
, 0, OPTION_SET_START
},
434 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
435 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
436 {"strip-all", no_argument
, 0, 'S'},
437 {"strip-debug", no_argument
, 0, 'g'},
438 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
439 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
440 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
441 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
442 {"strip-symbol", required_argument
, 0, 'N'},
443 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
444 {"target", required_argument
, 0, 'F'},
445 {"verbose", no_argument
, 0, 'v'},
446 {"version", no_argument
, 0, 'V'},
447 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
448 {"weaken-symbol", required_argument
, 0, 'W'},
449 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
450 {"wildcard", no_argument
, 0, 'w'},
451 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
452 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
453 {"heap", required_argument
, 0, OPTION_HEAP
},
454 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
455 {"section-alignment", required_argument
, 0, OPTION_SECTION_ALIGNMENT
},
456 {"stack", required_argument
, 0, OPTION_STACK
},
457 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
458 {0, no_argument
, 0, 0}
462 extern char *program_name
;
464 /* This flag distinguishes between strip and objcopy:
465 1 means this is 'strip'; 0 means this is 'objcopy'.
466 -1 means if we should use argv[0] to decide. */
469 /* The maximum length of an S record. This variable is declared in srec.c
470 and can be modified by the --srec-len parameter. */
471 extern unsigned int Chunk
;
473 /* Restrict the generation of Srecords to type S3 only.
474 This variable is declare in bfd/srec.c and can be toggled
475 on by the --srec-forceS3 command line switch. */
476 extern bfd_boolean S3Forced
;
478 /* Forward declarations. */
479 static void setup_section (bfd
*, asection
*, void *);
480 static void setup_bfd_headers (bfd
*, bfd
*);
481 static void copy_relocations_in_section (bfd
*, asection
*, void *);
482 static void copy_section (bfd
*, asection
*, void *);
483 static void get_sections (bfd
*, asection
*, void *);
484 static int compare_section_lma (const void *, const void *);
485 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
486 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
487 static const char *lookup_sym_redefinition (const char *);
490 copy_usage (FILE *stream
, int exit_status
)
492 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
493 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
494 fprintf (stream
, _(" The options are:\n"));
495 fprintf (stream
, _("\
496 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
497 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
498 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
499 -F --target <bfdname> Set both input and output format to <bfdname>\n\
500 --debugging Convert debugging information, if possible\n\
501 -p --preserve-dates Copy modified/access timestamps to the output\n"));
502 if (DEFAULT_AR_DETERMINISTIC
)
503 fprintf (stream
, _("\
504 -D --enable-deterministic-archives\n\
505 Produce deterministic output when stripping archives (default)\n\
506 -U --disable-deterministic-archives\n\
507 Disable -D behavior\n"));
509 fprintf (stream
, _("\
510 -D --enable-deterministic-archives\n\
511 Produce deterministic output when stripping archives\n\
512 -U --disable-deterministic-archives\n\
513 Disable -D behavior (default)\n"));
514 fprintf (stream
, _("\
515 -j --only-section <name> Only copy section <name> into the output\n\
516 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
517 -R --remove-section <name> Remove section <name> from the output\n\
518 -S --strip-all Remove all symbol and relocation information\n\
519 -g --strip-debug Remove all debugging symbols & sections\n\
520 --strip-dwo Remove all DWO sections\n\
521 --strip-unneeded Remove all symbols not needed by relocations\n\
522 -N --strip-symbol <name> Do not copy symbol <name>\n\
523 --strip-unneeded-symbol <name>\n\
524 Do not copy symbol <name> unless needed by\n\
526 --only-keep-debug Strip everything but the debug information\n\
527 --extract-dwo Copy only DWO sections\n\
528 --extract-symbol Remove section contents but keep symbols\n\
529 -K --keep-symbol <name> Do not strip symbol <name>\n\
530 --keep-file-symbols Do not strip file symbol(s)\n\
531 --localize-hidden Turn all ELF hidden symbols into locals\n\
532 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
533 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
534 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
535 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
536 --weaken Force all global symbols to be marked as weak\n\
537 -w --wildcard Permit wildcard in symbol comparison\n\
538 -x --discard-all Remove all non-global symbols\n\
539 -X --discard-locals Remove any compiler-generated symbols\n\
540 -i --interleave [<number>] Only copy N out of every <number> bytes\n\
541 --interleave-width <number> Set N for --interleave\n\
542 -b --byte <num> Select byte <num> in every interleaved block\n\
543 --gap-fill <val> Fill gaps between sections with <val>\n\
544 --pad-to <addr> Pad the last section up to address <addr>\n\
545 --set-start <addr> Set the start address to <addr>\n\
546 {--change-start|--adjust-start} <incr>\n\
547 Add <incr> to the start address\n\
548 {--change-addresses|--adjust-vma} <incr>\n\
549 Add <incr> to LMA, VMA and start addresses\n\
550 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
551 Change LMA and VMA of section <name> by <val>\n\
552 --change-section-lma <name>{=|+|-}<val>\n\
553 Change the LMA of section <name> by <val>\n\
554 --change-section-vma <name>{=|+|-}<val>\n\
555 Change the VMA of section <name> by <val>\n\
556 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
557 Warn if a named section does not exist\n\
558 --set-section-flags <name>=<flags>\n\
559 Set section <name>'s properties to <flags>\n\
560 --add-section <name>=<file> Add section <name> found in <file> to output\n\
561 --update-section <name>=<file>\n\
562 Update contents of section <name> with\n\
563 contents found in <file>\n\
564 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
565 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
566 --long-section-names {enable|disable|keep}\n\
567 Handle long section names in Coff objects.\n\
568 --change-leading-char Force output format's leading character style\n\
569 --remove-leading-char Remove leading character from global symbols\n\
570 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
571 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
572 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
574 --srec-len <number> Restrict the length of generated Srecords\n\
575 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
576 --strip-symbols <file> -N for all symbols listed in <file>\n\
577 --strip-unneeded-symbols <file>\n\
578 --strip-unneeded-symbol for all symbols listed\n\
580 --keep-symbols <file> -K for all symbols listed in <file>\n\
581 --localize-symbols <file> -L for all symbols listed in <file>\n\
582 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
583 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
584 --weaken-symbols <file> -W for all symbols listed in <file>\n\
585 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
586 --writable-text Mark the output text as writable\n\
587 --readonly-text Make the output text write protected\n\
588 --pure Mark the output file as demand paged\n\
589 --impure Mark the output file as impure\n\
590 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
591 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
592 --prefix-alloc-sections <prefix>\n\
593 Add <prefix> to start of every allocatable\n\
595 --file-alignment <num> Set PE file alignment to <num>\n\
596 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
598 --image-base <address> Set PE image base to <address>\n\
599 --section-alignment <num> Set PE section alignment to <num>\n\
600 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
602 --subsystem <name>[:<version>]\n\
603 Set PE subsystem to <name> [& <version>]\n\
604 --compress-debug-sections Compress DWARF debug sections using zlib\n\
605 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
606 -v --verbose List all object files modified\n\
607 @<file> Read options from <file>\n\
608 -V --version Display this program's version number\n\
609 -h --help Display this output\n\
610 --info List object formats & architectures supported\n\
612 list_supported_targets (program_name
, stream
);
613 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
614 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
619 strip_usage (FILE *stream
, int exit_status
)
621 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
622 fprintf (stream
, _(" Removes symbols and sections from files\n"));
623 fprintf (stream
, _(" The options are:\n"));
624 fprintf (stream
, _("\
625 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
626 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
627 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
628 -p --preserve-dates Copy modified/access timestamps to the output\n\
630 if (DEFAULT_AR_DETERMINISTIC
)
631 fprintf (stream
, _("\
632 -D --enable-deterministic-archives\n\
633 Produce deterministic output when stripping archives (default)\n\
634 -U --disable-deterministic-archives\n\
635 Disable -D behavior\n"));
637 fprintf (stream
, _("\
638 -D --enable-deterministic-archives\n\
639 Produce deterministic output when stripping archives\n\
640 -U --disable-deterministic-archives\n\
641 Disable -D behavior (default)\n"));
642 fprintf (stream
, _("\
643 -R --remove-section=<name> Also remove section <name> from the output\n\
644 -s --strip-all Remove all symbol and relocation information\n\
645 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
646 --strip-dwo Remove all DWO sections\n\
647 --strip-unneeded Remove all symbols not needed by relocations\n\
648 --only-keep-debug Strip everything but the debug information\n\
649 -N --strip-symbol=<name> Do not copy symbol <name>\n\
650 -K --keep-symbol=<name> Do not strip symbol <name>\n\
651 --keep-file-symbols Do not strip file symbol(s)\n\
652 -w --wildcard Permit wildcard in symbol comparison\n\
653 -x --discard-all Remove all non-global symbols\n\
654 -X --discard-locals Remove any compiler-generated symbols\n\
655 -v --verbose List all object files modified\n\
656 -V --version Display this program's version number\n\
657 -h --help Display this output\n\
658 --info List object formats & architectures supported\n\
659 -o <file> Place stripped output into <file>\n\
662 list_supported_targets (program_name
, stream
);
663 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
664 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
668 /* Parse section flags into a flagword, with a fatal error if the
669 string can't be parsed. */
672 parse_flags (const char *s
)
682 snext
= strchr (s
, ',');
692 #define PARSE_FLAG(fname,fval) \
693 else if (strncasecmp (fname, s, len) == 0) ret |= fval
694 PARSE_FLAG ("alloc", SEC_ALLOC
);
695 PARSE_FLAG ("load", SEC_LOAD
);
696 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
697 PARSE_FLAG ("readonly", SEC_READONLY
);
698 PARSE_FLAG ("debug", SEC_DEBUGGING
);
699 PARSE_FLAG ("code", SEC_CODE
);
700 PARSE_FLAG ("data", SEC_DATA
);
701 PARSE_FLAG ("rom", SEC_ROM
);
702 PARSE_FLAG ("share", SEC_COFF_SHARED
);
703 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
704 PARSE_FLAG ("merge", SEC_MERGE
);
705 PARSE_FLAG ("strings", SEC_STRINGS
);
711 copy
= (char *) xmalloc (len
+ 1);
712 strncpy (copy
, s
, len
);
714 non_fatal (_("unrecognized section flag `%s'"), copy
);
715 fatal (_("supported flags: %s"),
716 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
726 /* Find and optionally add an entry in the change_sections list.
728 We need to be careful in how we match section names because of the support
729 for wildcard characters. For example suppose that the user has invoked
732 --set-section-flags .debug_*=debug
733 --set-section-flags .debug_str=readonly,debug
734 --change-section-address .debug_*ranges=0x1000
736 With the idea that all debug sections will receive the DEBUG flag, the
737 .debug_str section will also receive the READONLY flag and the
738 .debug_ranges and .debug_aranges sections will have their address set to
739 0x1000. (This may not make much sense, but it is just an example).
741 When adding the section name patterns to the section list we need to make
742 sure that previous entries do not match with the new entry, unless the
743 match is exact. (In which case we assume that the user is overriding
744 the previous entry with the new context).
746 When matching real section names to the section list we make use of the
747 wildcard characters, but we must do so in context. Eg if we are setting
748 section addresses then we match for .debug_ranges but not for .debug_info.
750 Finally, if ADD is false and we do find a match, we mark the section list
753 static struct section_list
*
754 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
756 struct section_list
*p
;
758 /* assert ((context & ((1 << 7) - 1)) != 0); */
760 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
764 if (strcmp (p
->pattern
, name
) == 0)
766 /* Check for context conflicts. */
767 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
768 && (context
& SECTION_CONTEXT_COPY
))
769 || ((context
& SECTION_CONTEXT_REMOVE
)
770 && (p
->context
& SECTION_CONTEXT_COPY
)))
771 fatal (_("error: %s both copied and removed"), name
);
773 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
774 && (context
& SECTION_CONTEXT_ALTER_VMA
))
775 || ((context
& SECTION_CONTEXT_SET_VMA
)
776 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
777 fatal (_("error: %s both sets and alters VMA"), name
);
779 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
780 && (context
& SECTION_CONTEXT_ALTER_LMA
))
781 || ((context
& SECTION_CONTEXT_SET_LMA
)
782 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
783 fatal (_("error: %s both sets and alters LMA"), name
);
785 /* Extend the context. */
786 p
->context
|= context
;
790 /* If we are not adding a new name/pattern then
791 only check for a match if the context applies. */
792 else if ((p
->context
& context
)
793 /* We could check for the presence of wildchar characters
794 first and choose between calling strcmp and fnmatch,
795 but is that really worth it ? */
796 && fnmatch (p
->pattern
, name
, 0) == 0)
806 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
809 p
->context
= context
;
813 p
->next
= change_sections
;
819 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
822 eq_string (const void *s1
, const void *s2
)
824 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
828 create_symbol_htab (void)
830 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
834 create_symbol_htabs (void)
836 strip_specific_htab
= create_symbol_htab ();
837 strip_unneeded_htab
= create_symbol_htab ();
838 keep_specific_htab
= create_symbol_htab ();
839 localize_specific_htab
= create_symbol_htab ();
840 globalize_specific_htab
= create_symbol_htab ();
841 keepglobal_specific_htab
= create_symbol_htab ();
842 weaken_specific_htab
= create_symbol_htab ();
845 /* Add a symbol to strip_specific_list. */
848 add_specific_symbol (const char *name
, htab_t htab
)
850 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
853 /* Add symbols listed in `filename' to strip_specific_list. */
855 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
856 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
859 add_specific_symbols (const char *filename
, htab_t htab
)
865 unsigned int line_count
;
867 size
= get_file_size (filename
);
874 buffer
= (char *) xmalloc (size
+ 2);
875 f
= fopen (filename
, FOPEN_RT
);
877 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
879 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
880 fatal (_("%s: fread failed"), filename
);
883 buffer
[size
] = '\n';
884 buffer
[size
+ 1] = '\0';
888 for (line
= buffer
; * line
!= '\0'; line
++)
893 int finished
= FALSE
;
895 for (eol
= line
;; eol
++)
901 /* Cope with \n\r. */
909 /* Cope with \r\n. */
920 /* Line comment, Terminate the line here, in case a
921 name is present and then allow the rest of the
922 loop to find the real end of the line. */
934 /* A name may now exist somewhere between 'line' and 'eol'.
935 Strip off leading whitespace and trailing whitespace,
936 then add it to the list. */
937 for (name
= line
; IS_WHITESPACE (* name
); name
++)
939 for (name_end
= name
;
940 (! IS_WHITESPACE (* name_end
))
941 && (! IS_LINE_TERMINATOR (* name_end
));
945 if (! IS_LINE_TERMINATOR (* name_end
))
949 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
952 if (! IS_LINE_TERMINATOR (* extra
))
953 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
954 filename
, line_count
);
960 add_specific_symbol (name
, htab
);
962 /* Advance line pointer to end of line. The 'eol ++' in the for
963 loop above will then advance us to the start of the next line. */
969 /* See whether a symbol should be stripped or kept
970 based on strip_specific_list and keep_symbols. */
973 is_specified_symbol_predicate (void **slot
, void *data
)
975 struct is_specified_symbol_predicate_data
*d
=
976 (struct is_specified_symbol_predicate_data
*) data
;
977 const char *slot_name
= (char *) *slot
;
979 if (*slot_name
!= '!')
981 if (! fnmatch (slot_name
, d
->name
, 0))
984 /* Stop traversal. */
990 if (fnmatch (slot_name
+ 1, d
->name
, 0))
993 /* Stop traversal. */
998 /* Continue traversal. */
1003 is_specified_symbol (const char *name
, htab_t htab
)
1007 struct is_specified_symbol_predicate_data data
;
1012 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1017 return htab_find (htab
, name
) != NULL
;
1020 /* Return a pointer to the symbol used as a signature for GROUP. */
1023 group_signature (asection
*group
)
1025 bfd
*abfd
= group
->owner
;
1026 Elf_Internal_Shdr
*ghdr
;
1028 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1031 ghdr
= &elf_section_data (group
)->this_hdr
;
1032 if (ghdr
->sh_link
< elf_numsections (abfd
))
1034 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1035 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1037 if (symhdr
->sh_type
== SHT_SYMTAB
1038 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1039 return isympp
[ghdr
->sh_info
- 1];
1044 /* Return TRUE if the section is a DWO section. */
1047 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1049 const char *name
= bfd_get_section_name (abfd
, sec
);
1050 int len
= strlen (name
);
1052 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1055 /* Return TRUE if section SEC is in the update list. */
1058 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1060 if (update_sections
!= NULL
)
1062 struct section_add
*pupdate
;
1064 for (pupdate
= update_sections
;
1066 pupdate
= pupdate
->next
)
1068 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1076 /* See if a non-group section is being removed. */
1079 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1081 if (sections_removed
|| sections_copied
)
1083 struct section_list
*p
;
1084 struct section_list
*q
;
1086 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1087 SECTION_CONTEXT_REMOVE
);
1088 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1089 SECTION_CONTEXT_COPY
);
1092 fatal (_("error: section %s matches both remove and copy options"),
1093 bfd_get_section_name (abfd
, sec
));
1094 if (p
&& is_update_section (abfd
, sec
))
1095 fatal (_("error: section %s matches both update and remove options"),
1096 bfd_get_section_name (abfd
, sec
));
1100 if (sections_copied
&& q
== NULL
)
1104 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1106 if (strip_symbols
== STRIP_DEBUG
1107 || strip_symbols
== STRIP_UNNEEDED
1108 || strip_symbols
== STRIP_ALL
1109 || discard_locals
== LOCALS_ALL
1110 || convert_debugging
)
1112 /* By default we don't want to strip .reloc section.
1113 This section has for pe-coff special meaning. See
1114 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1115 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1119 if (strip_symbols
== STRIP_DWO
)
1120 return is_dwo_section (abfd
, sec
);
1122 if (strip_symbols
== STRIP_NONDEBUG
)
1126 if (strip_symbols
== STRIP_NONDWO
)
1127 return !is_dwo_section (abfd
, sec
);
1132 /* See if a section is being removed. */
1135 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1137 if (is_strip_section_1 (abfd
, sec
))
1140 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1144 asection
*elt
, *first
;
1147 If we are going to strip the group signature symbol, then
1148 strip the group section too. */
1149 gsym
= group_signature (sec
);
1154 if ((strip_symbols
== STRIP_ALL
1155 && !is_specified_symbol (gname
, keep_specific_htab
))
1156 || is_specified_symbol (gname
, strip_specific_htab
))
1159 /* Remove the group section if all members are removed. */
1160 first
= elt
= elf_next_in_group (sec
);
1163 if (!is_strip_section_1 (abfd
, elt
))
1165 elt
= elf_next_in_group (elt
);
1177 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1179 /* Always keep ELF note sections. */
1180 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1181 return (elf_section_type (isection
) == SHT_NOTE
);
1183 /* Always keep the .buildid section for PE/COFF.
1185 Strictly, this should be written "always keep the section storing the debug
1186 directory", but that may be the .text section for objects produced by some
1187 tools, which it is not sensible to keep. */
1188 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1189 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1194 /* Return true if SYM is a hidden symbol. */
1197 is_hidden_symbol (asymbol
*sym
)
1199 elf_symbol_type
*elf_sym
;
1201 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1202 if (elf_sym
!= NULL
)
1203 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1212 /* Choose which symbol entries to copy; put the result in OSYMS.
1213 We don't copy in place, because that confuses the relocs.
1214 Return the number of symbols to print. */
1217 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1218 asymbol
**isyms
, long symcount
)
1220 asymbol
**from
= isyms
, **to
= osyms
;
1221 long src_count
= 0, dst_count
= 0;
1222 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1224 for (; src_count
< symcount
; src_count
++)
1226 asymbol
*sym
= from
[src_count
];
1227 flagword flags
= sym
->flags
;
1228 char *name
= (char *) bfd_asymbol_name (sym
);
1230 bfd_boolean used_in_reloc
= FALSE
;
1231 bfd_boolean undefined
;
1232 bfd_boolean rem_leading_char
;
1233 bfd_boolean add_leading_char
;
1235 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1237 if (redefine_sym_list
)
1239 char *old_name
, *new_name
;
1241 old_name
= (char *) bfd_asymbol_name (sym
);
1242 new_name
= (char *) lookup_sym_redefinition (old_name
);
1243 bfd_asymbol_name (sym
) = new_name
;
1247 /* Check if we will remove the current leading character. */
1249 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1250 && (change_leading_char
1251 || (remove_leading_char
1252 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1254 || bfd_is_com_section (bfd_get_section (sym
)))));
1256 /* Check if we will add a new leading character. */
1259 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1260 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1261 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1263 /* Short circuit for change_leading_char if we can do it in-place. */
1264 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1266 name
[0] = bfd_get_symbol_leading_char (obfd
);
1267 bfd_asymbol_name (sym
) = name
;
1268 rem_leading_char
= FALSE
;
1269 add_leading_char
= FALSE
;
1272 /* Remove leading char. */
1273 if (rem_leading_char
)
1274 bfd_asymbol_name (sym
) = ++name
;
1276 /* Add new leading char and/or prefix. */
1277 if (add_leading_char
|| prefix_symbols_string
)
1281 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1282 + strlen (name
) + 1);
1283 if (add_leading_char
)
1284 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1286 if (prefix_symbols_string
)
1288 strcpy (ptr
, prefix_symbols_string
);
1289 ptr
+= strlen (prefix_symbols_string
);
1293 bfd_asymbol_name (sym
) = n
;
1297 if (strip_symbols
== STRIP_ALL
)
1299 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1300 || ((flags
& BSF_SECTION_SYM
) != 0
1301 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1305 used_in_reloc
= TRUE
;
1307 else if (relocatable
/* Relocatable file. */
1308 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1309 || bfd_is_com_section (bfd_get_section (sym
))))
1311 else if (bfd_decode_symclass (sym
) == 'I')
1312 /* Global symbols in $idata sections need to be retained
1313 even if relocatable is FALSE. External users of the
1314 library containing the $idata section may reference these
1317 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1318 || (flags
& BSF_WEAK
) != 0
1320 || bfd_is_com_section (bfd_get_section (sym
)))
1321 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1322 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1323 keep
= (strip_symbols
!= STRIP_DEBUG
1324 && strip_symbols
!= STRIP_UNNEEDED
1325 && ! convert_debugging
);
1326 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1327 /* COMDAT sections store special information in local
1328 symbols, so we cannot risk stripping any of them. */
1330 else /* Local symbol. */
1331 keep
= (strip_symbols
!= STRIP_UNNEEDED
1332 && (discard_locals
!= LOCALS_ALL
1333 && (discard_locals
!= LOCALS_START_L
1334 || ! bfd_is_local_label (abfd
, sym
))));
1336 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1338 /* There are multiple ways to set 'keep' above, but if it
1339 was the relocatable symbol case, then that's an error. */
1342 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1350 && !(flags
& BSF_KEEP
)
1351 && is_specified_symbol (name
, strip_unneeded_htab
))
1355 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1356 || is_specified_symbol (name
, keep_specific_htab
)))
1359 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1364 if ((flags
& BSF_GLOBAL
) != 0
1365 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1367 sym
->flags
&= ~ BSF_GLOBAL
;
1368 sym
->flags
|= BSF_WEAK
;
1372 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1373 && (is_specified_symbol (name
, localize_specific_htab
)
1374 || (htab_elements (keepglobal_specific_htab
) != 0
1375 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1376 || (localize_hidden
&& is_hidden_symbol (sym
))))
1378 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1379 sym
->flags
|= BSF_LOCAL
;
1383 && (flags
& BSF_LOCAL
)
1384 && is_specified_symbol (name
, globalize_specific_htab
))
1386 sym
->flags
&= ~ BSF_LOCAL
;
1387 sym
->flags
|= BSF_GLOBAL
;
1390 to
[dst_count
++] = sym
;
1394 to
[dst_count
] = NULL
;
1399 /* Find the redefined name of symbol SOURCE. */
1402 lookup_sym_redefinition (const char *source
)
1404 struct redefine_node
*list
;
1406 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1407 if (strcmp (source
, list
->source
) == 0)
1408 return list
->target
;
1413 /* Add a node to a symbol redefine list. */
1416 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1418 struct redefine_node
**p
;
1419 struct redefine_node
*list
;
1420 struct redefine_node
*new_node
;
1422 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1424 if (strcmp (source
, list
->source
) == 0)
1425 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1428 if (strcmp (target
, list
->target
) == 0)
1429 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1433 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1435 new_node
->source
= strdup (source
);
1436 new_node
->target
= strdup (target
);
1437 new_node
->next
= NULL
;
1442 /* Handle the --redefine-syms option. Read lines containing "old new"
1443 from the file, and add them to the symbol redefine list. */
1446 add_redefine_syms_file (const char *filename
)
1455 file
= fopen (filename
, "r");
1457 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1458 filename
, strerror (errno
));
1461 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1469 /* Collect the input symbol name. */
1470 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1478 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1486 /* Eat white space between the symbol names. */
1487 while (IS_WHITESPACE (c
))
1489 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1494 /* Collect the output symbol name. */
1496 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1504 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1512 /* Eat white space at end of line. */
1513 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1518 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1519 || c
== '\n' || c
== EOF
)
1522 /* Append the redefinition to the list. */
1524 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1535 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1537 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1538 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1541 /* Eat the rest of the line and finish it. */
1542 while (c
!= '\n' && c
!= EOF
)
1548 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1553 /* Copy unkown object file IBFD onto OBFD.
1554 Returns TRUE upon success, FALSE otherwise. */
1557 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1565 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1567 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1574 non_fatal (_("stat returns negative size for `%s'"),
1575 bfd_get_archive_filename (ibfd
));
1579 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1581 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1586 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1587 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1589 cbuf
= (char *) xmalloc (BUFSIZE
);
1591 while (ncopied
< size
)
1593 tocopy
= size
- ncopied
;
1594 if (tocopy
> BUFSIZE
)
1597 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1598 != (bfd_size_type
) tocopy
)
1600 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1605 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1606 != (bfd_size_type
) tocopy
)
1608 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1616 /* We should at least to be able to read it back when copying an
1617 unknown object in an archive. */
1618 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1623 /* Copy object file IBFD onto OBFD.
1624 Returns TRUE upon success, FALSE otherwise. */
1627 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1631 asection
**osections
= NULL
;
1632 asection
*gnu_debuglink_section
= NULL
;
1633 bfd_size_type
*gaps
= NULL
;
1634 bfd_size_type max_gap
= 0;
1637 enum bfd_architecture iarch
;
1640 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1641 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1642 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1643 fatal (_("Unable to change endianness of input file(s)"));
1645 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1647 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1651 if (ibfd
->sections
== NULL
)
1653 non_fatal (_("error: the input file '%s' has no sections"),
1654 bfd_get_archive_filename (ibfd
));
1659 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1660 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1661 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1670 start
= bfd_get_start_address (ibfd
);
1671 start
+= change_start
;
1674 /* Neither the start address nor the flags
1675 need to be set for a core file. */
1676 if (bfd_get_format (obfd
) != bfd_core
)
1680 flags
= bfd_get_file_flags (ibfd
);
1681 flags
|= bfd_flags_to_set
;
1682 flags
&= ~bfd_flags_to_clear
;
1683 flags
&= bfd_applicable_file_flags (obfd
);
1685 if (strip_symbols
== STRIP_ALL
)
1686 flags
&= ~HAS_RELOC
;
1688 if (!bfd_set_start_address (obfd
, start
)
1689 || !bfd_set_file_flags (obfd
, flags
))
1691 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1696 /* Copy architecture of input file to output file. */
1697 iarch
= bfd_get_arch (ibfd
);
1698 imach
= bfd_get_mach (ibfd
);
1701 if (bfd_get_arch_info (ibfd
) == NULL
1702 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1704 iarch
= input_arch
->arch
;
1705 imach
= input_arch
->mach
;
1708 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1709 bfd_get_archive_filename (ibfd
));
1711 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1712 && (ibfd
->target_defaulted
1713 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1715 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1716 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1717 bfd_get_archive_filename (ibfd
));
1719 non_fatal (_("Output file cannot represent architecture `%s'"),
1720 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1721 bfd_get_mach (ibfd
)));
1725 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1727 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1731 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1732 && bfd_pei_p (obfd
))
1734 /* Set up PE parameters. */
1735 pe_data_type
*pe
= pe_data (obfd
);
1737 /* Copy PE parameters before changing them. */
1738 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1739 && bfd_pei_p (ibfd
))
1740 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1742 if (pe_file_alignment
!= (bfd_vma
) -1)
1743 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1745 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1747 if (pe_heap_commit
!= (bfd_vma
) -1)
1748 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1750 if (pe_heap_reserve
!= (bfd_vma
) -1)
1751 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1753 if (pe_image_base
!= (bfd_vma
) -1)
1754 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1756 if (pe_section_alignment
!= (bfd_vma
) -1)
1757 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1759 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1761 if (pe_stack_commit
!= (bfd_vma
) -1)
1762 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1764 if (pe_stack_reserve
!= (bfd_vma
) -1)
1765 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1767 if (pe_subsystem
!= -1)
1768 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1770 if (pe_major_subsystem_version
!= -1)
1771 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1773 if (pe_minor_subsystem_version
!= -1)
1774 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1776 if (pe_file_alignment
> pe_section_alignment
)
1778 char file_alignment
[20], section_alignment
[20];
1780 sprintf_vma (file_alignment
, pe_file_alignment
);
1781 sprintf_vma (section_alignment
, pe_section_alignment
);
1782 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1784 file_alignment
, section_alignment
);
1791 if (osympp
!= isympp
)
1797 symsize
= bfd_get_symtab_upper_bound (ibfd
);
1800 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1804 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
1805 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
1808 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1811 /* PR 17512: file: d6323821
1812 If the symbol table could not be loaded do not pretend that we have
1813 any symbols. This trips us up later on when we load the relocs. */
1817 osympp
= isympp
= NULL
;
1820 /* BFD mandates that all output sections be created and sizes set before
1821 any output is done. Thus, we traverse all sections multiple times. */
1822 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
1824 if (!extract_symbol
)
1825 setup_bfd_headers (ibfd
, obfd
);
1827 if (add_sections
!= NULL
)
1829 struct section_add
*padd
;
1830 struct section_list
*pset
;
1832 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
1836 pset
= find_section_list (padd
->name
, FALSE
,
1837 SECTION_CONTEXT_SET_FLAGS
);
1839 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
1841 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
1843 /* bfd_make_section_with_flags() does not return very helpful
1844 error codes, so check for the most likely user error first. */
1845 if (bfd_get_section_by_name (obfd
, padd
->name
))
1847 bfd_nonfatal_message (NULL
, obfd
, NULL
,
1848 _("can't add section '%s'"), padd
->name
);
1853 /* We use LINKER_CREATED here so that the backend hooks
1854 will create any special section type information,
1855 instead of presuming we know what we're doing merely
1856 because we set the flags. */
1857 padd
->section
= bfd_make_section_with_flags
1858 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
1859 if (padd
->section
== NULL
)
1861 bfd_nonfatal_message (NULL
, obfd
, NULL
,
1862 _("can't create section `%s'"),
1868 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
1870 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1874 pset
= find_section_list (padd
->name
, FALSE
,
1875 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
1877 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
1879 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1883 pset
= find_section_list (padd
->name
, FALSE
,
1884 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
1887 padd
->section
->lma
= pset
->lma_val
;
1889 if (! bfd_set_section_alignment
1890 (obfd
, padd
->section
,
1891 bfd_section_alignment (obfd
, padd
->section
)))
1893 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1900 if (update_sections
!= NULL
)
1902 struct section_add
*pupdate
;
1904 for (pupdate
= update_sections
;
1906 pupdate
= pupdate
->next
)
1910 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
1911 if (pupdate
->section
== NULL
)
1912 fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
1914 osec
= pupdate
->section
->output_section
;
1915 if (! bfd_set_section_size (obfd
, osec
, pupdate
->size
))
1917 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
1923 if (dump_sections
!= NULL
)
1925 struct section_add
* pdump
;
1927 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
1931 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
1934 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
1935 _("can't dump section '%s' - it does not exist"),
1940 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
1942 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1943 _("can't dump section - it has no contents"));
1947 bfd_size_type size
= bfd_get_section_size (sec
);
1950 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1951 _("can't dump section - it is empty"));
1956 f
= fopen (pdump
->filename
, FOPEN_WB
);
1959 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
1960 _("could not open section dump file"));
1964 bfd_byte
* contents
= xmalloc (size
);
1965 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
1967 if (fwrite (contents
, 1, size
, f
) != size
)
1968 fatal (_("error writing section contents to %s (error: %s)"),
1973 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1974 _("could not retrieve section contents"));
1981 if (gnu_debuglink_filename
!= NULL
)
1983 /* PR 15125: Give a helpful warning message if
1984 the debuglink section already exists, and
1985 allow the rest of the copy to complete. */
1986 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
1988 non_fatal (_("%s: debuglink section already exists"),
1989 bfd_get_filename (obfd
));
1990 gnu_debuglink_filename
= NULL
;
1994 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
1995 (obfd
, gnu_debuglink_filename
);
1997 if (gnu_debuglink_section
== NULL
)
1999 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2000 _("cannot create debug link section `%s'"),
2001 gnu_debuglink_filename
);
2005 /* Special processing for PE format files. We
2006 have no way to distinguish PE from COFF here. */
2007 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
2009 bfd_vma debuglink_vma
;
2010 asection
* highest_section
;
2013 /* The PE spec requires that all sections be adjacent and sorted
2014 in ascending order of VMA. It also specifies that debug
2015 sections should be last. This is despite the fact that debug
2016 sections are not loaded into memory and so in theory have no
2019 This means that the debuglink section must be given a non-zero
2020 VMA which makes it contiguous with other debug sections. So
2021 walk the current section list, find the section with the
2022 highest VMA and start the debuglink section after that one. */
2023 for (sec
= obfd
->sections
, highest_section
= NULL
;
2027 && (highest_section
== NULL
2028 || sec
->vma
> highest_section
->vma
))
2029 highest_section
= sec
;
2031 if (highest_section
)
2032 debuglink_vma
= BFD_ALIGN (highest_section
->vma
2033 + highest_section
->size
,
2034 /* FIXME: We ought to be using
2035 COFF_PAGE_SIZE here or maybe
2036 bfd_get_section_alignment() (if it
2037 was set) but since this is for PE
2038 and we know the required alignment
2039 it is easier just to hard code it. */
2042 /* Umm, not sure what to do in this case. */
2043 debuglink_vma
= 0x1000;
2045 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
2050 if (bfd_count_sections (obfd
) != 0
2051 && (gap_fill_set
|| pad_to_set
))
2056 /* We must fill in gaps between the sections and/or we must pad
2057 the last section to a specified address. We do this by
2058 grabbing a list of the sections, sorting them by VMA, and
2059 increasing the section sizes as required to fill the gaps.
2060 We write out the gap contents below. */
2062 c
= bfd_count_sections (obfd
);
2063 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2065 bfd_map_over_sections (obfd
, get_sections
, &set
);
2067 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2069 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2070 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2074 for (i
= 0; i
< c
- 1; i
++)
2078 bfd_vma gap_start
, gap_stop
;
2080 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2081 if ((flags
& SEC_HAS_CONTENTS
) == 0
2082 || (flags
& SEC_LOAD
) == 0)
2085 size
= bfd_section_size (obfd
, osections
[i
]);
2086 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2087 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2088 if (gap_start
< gap_stop
)
2090 if (! bfd_set_section_size (obfd
, osections
[i
],
2091 size
+ (gap_stop
- gap_start
)))
2093 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2094 _("Can't fill gap after section"));
2098 gaps
[i
] = gap_stop
- gap_start
;
2099 if (max_gap
< gap_stop
- gap_start
)
2100 max_gap
= gap_stop
- gap_start
;
2110 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2111 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2112 if (lma
+ size
< pad_to
)
2114 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2117 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2118 _("can't add padding"));
2123 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2124 if (max_gap
< pad_to
- (lma
+ size
))
2125 max_gap
= pad_to
- (lma
+ size
);
2131 /* Symbol filtering must happen after the output sections
2132 have been created, but before their contents are set. */
2134 if (convert_debugging
)
2135 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2137 if (strip_symbols
== STRIP_DEBUG
2138 || strip_symbols
== STRIP_ALL
2139 || strip_symbols
== STRIP_UNNEEDED
2140 || strip_symbols
== STRIP_NONDEBUG
2141 || strip_symbols
== STRIP_DWO
2142 || strip_symbols
== STRIP_NONDWO
2143 || discard_locals
!= LOCALS_UNDEF
2145 || htab_elements (strip_specific_htab
) != 0
2146 || htab_elements (keep_specific_htab
) != 0
2147 || htab_elements (localize_specific_htab
) != 0
2148 || htab_elements (globalize_specific_htab
) != 0
2149 || htab_elements (keepglobal_specific_htab
) != 0
2150 || htab_elements (weaken_specific_htab
) != 0
2151 || prefix_symbols_string
2154 || convert_debugging
2155 || change_leading_char
2156 || remove_leading_char
2157 || redefine_sym_list
2160 /* Mark symbols used in output relocations so that they
2161 are kept, even if they are local labels or static symbols.
2163 Note we iterate over the input sections examining their
2164 relocations since the relocations for the output sections
2165 haven't been set yet. mark_symbols_used_in_relocations will
2166 ignore input sections which have no corresponding output
2168 if (strip_symbols
!= STRIP_ALL
)
2169 bfd_map_over_sections (ibfd
,
2170 mark_symbols_used_in_relocations
,
2172 osympp
= (asymbol
**) xmalloc ((symcount
+ 1) * sizeof (asymbol
*));
2173 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2176 if (convert_debugging
&& dhandle
!= NULL
)
2178 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2185 bfd_set_symtab (obfd
, osympp
, symcount
);
2187 /* This has to happen before section positions are set. */
2188 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2190 /* This has to happen after the symbol table has been set. */
2191 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2193 if (add_sections
!= NULL
)
2195 struct section_add
*padd
;
2197 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2199 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2202 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2208 if (update_sections
!= NULL
)
2210 struct section_add
*pupdate
;
2212 for (pupdate
= update_sections
;
2214 pupdate
= pupdate
->next
)
2218 osec
= pupdate
->section
->output_section
;
2219 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
2222 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2228 if (gnu_debuglink_filename
!= NULL
)
2230 if (! bfd_fill_in_gnu_debuglink_section
2231 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2233 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2234 _("cannot fill debug link section `%s'"),
2235 gnu_debuglink_filename
);
2240 if (gap_fill_set
|| pad_to_set
)
2245 /* Fill in the gaps. */
2248 buf
= (bfd_byte
*) xmalloc (max_gap
);
2249 memset (buf
, gap_fill
, max_gap
);
2251 c
= bfd_count_sections (obfd
);
2252 for (i
= 0; i
< c
; i
++)
2260 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2271 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2274 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2285 /* Do not copy backend data if --extract-symbol is passed; anything
2286 that needs to look at the section contents will fail. */
2290 /* Allow the BFD backend to copy any private data it understands
2291 from the input BFD to the output BFD. This is done last to
2292 permit the routine to look at the filtered symbol table, which is
2293 important for the ECOFF code at least. */
2294 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2296 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2297 _("error copying private BFD data"));
2301 /* Switch to the alternate machine code. We have to do this at the
2302 very end, because we only initialize the header when we create
2303 the first section. */
2304 if (use_alt_mach_code
!= 0)
2306 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2308 non_fatal (_("this target does not support %lu alternative machine codes"),
2310 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2312 non_fatal (_("treating that number as an absolute e_machine value instead"));
2313 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2316 non_fatal (_("ignoring the alternative value"));
2323 /* Read each archive element in turn from IBFD, copy the
2324 contents to temp file, and keep the temp file handle.
2325 If 'force_output_target' is TRUE then make sure that
2326 all elements in the new archive are of the type
2330 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2331 bfd_boolean force_output_target
,
2332 const bfd_arch_info_type
*input_arch
)
2336 struct name_list
*next
;
2340 bfd
**ptr
= &obfd
->archive_head
;
2343 const char *filename
;
2345 /* Make a temp directory to hold the contents. */
2346 dir
= make_tempdir (bfd_get_filename (obfd
));
2348 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2351 if (strip_symbols
== STRIP_ALL
)
2352 obfd
->has_armap
= FALSE
;
2354 obfd
->has_armap
= ibfd
->has_armap
;
2355 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2358 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2362 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2364 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2367 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2371 while (!status
&& this_element
!= NULL
)
2377 int stat_status
= 0;
2378 bfd_boolean del
= TRUE
;
2379 bfd_boolean ok_object
;
2381 /* PR binutils/17533: Do not allow directory traversal
2382 outside of the current directory tree by archive members. */
2383 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2385 non_fatal (_("illegal pathname found in archive member: %s"),
2386 bfd_get_filename (this_element
));
2388 goto cleanup_and_exit
;
2391 /* Create an output file for this member. */
2392 output_name
= concat (dir
, "/",
2393 bfd_get_filename (this_element
), (char *) 0);
2395 /* If the file already exists, make another temp dir. */
2396 if (stat (output_name
, &buf
) >= 0)
2398 output_name
= make_tempdir (output_name
);
2399 if (output_name
== NULL
)
2401 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2404 goto cleanup_and_exit
;
2407 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2408 l
->name
= output_name
;
2412 output_name
= concat (output_name
, "/",
2413 bfd_get_filename (this_element
), (char *) 0);
2418 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2420 if (stat_status
!= 0)
2421 non_fatal (_("internal stat error on %s"),
2422 bfd_get_filename (this_element
));
2425 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2426 l
->name
= output_name
;
2431 ok_object
= bfd_check_format (this_element
, bfd_object
);
2433 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2434 _("Unable to recognise the format of file"));
2436 /* PR binutils/3110: Cope with archives
2437 containing multiple target types. */
2438 if (force_output_target
|| !ok_object
)
2439 output_bfd
= bfd_openw (output_name
, output_target
);
2441 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2443 if (output_bfd
== NULL
)
2445 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2447 goto cleanup_and_exit
;
2452 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2454 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2455 /* Try again as an unknown object file. */
2457 else if (!bfd_close (output_bfd
))
2459 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2460 /* Error in new object file. Don't change archive. */
2467 del
= !copy_unknown_object (this_element
, output_bfd
);
2468 if (!bfd_close_all_done (output_bfd
))
2470 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2471 /* Error in new object file. Don't change archive. */
2478 unlink (output_name
);
2483 if (preserve_dates
&& stat_status
== 0)
2484 set_times (output_name
, &buf
);
2486 /* Open the newly output file and attach to our list. */
2487 output_bfd
= bfd_openr (output_name
, output_target
);
2489 l
->obfd
= output_bfd
;
2492 ptr
= &output_bfd
->archive_next
;
2494 last_element
= this_element
;
2496 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2498 bfd_close (last_element
);
2503 filename
= bfd_get_filename (obfd
);
2504 if (!bfd_close (obfd
))
2507 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2510 filename
= bfd_get_filename (ibfd
);
2511 if (!bfd_close (ibfd
))
2514 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2518 /* Delete all the files that we opened. */
2519 for (l
= list
; l
!= NULL
; l
= l
->next
)
2521 if (l
->obfd
== NULL
)
2525 bfd_close (l
->obfd
);
2533 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2535 /* This is only relevant to Coff targets. */
2536 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2539 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2540 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2541 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2545 /* The top-level control. */
2548 copy_file (const char *input_filename
, const char *output_filename
,
2549 const char *input_target
, const char *output_target
,
2550 const bfd_arch_info_type
*input_arch
)
2553 char **obj_matching
;
2554 char **core_matching
;
2555 off_t size
= get_file_size (input_filename
);
2560 non_fatal (_("error: the input file '%s' is empty"),
2566 /* To allow us to do "strip *" without dying on the first
2567 non-object file, failures are nonfatal. */
2568 ibfd
= bfd_openr (input_filename
, input_target
);
2571 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2576 switch (do_debug_sections
)
2579 ibfd
->flags
|= BFD_COMPRESS
;
2582 ibfd
->flags
|= BFD_DECOMPRESS
;
2588 if (bfd_check_format (ibfd
, bfd_archive
))
2590 bfd_boolean force_output_target
;
2593 /* bfd_get_target does not return the correct value until
2594 bfd_check_format succeeds. */
2595 if (output_target
== NULL
)
2597 output_target
= bfd_get_target (ibfd
);
2598 force_output_target
= FALSE
;
2601 force_output_target
= TRUE
;
2603 obfd
= bfd_openw (output_filename
, output_target
);
2606 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2610 /* This is a no-op on non-Coff targets. */
2611 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2613 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2615 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2620 /* bfd_get_target does not return the correct value until
2621 bfd_check_format succeeds. */
2622 if (output_target
== NULL
)
2623 output_target
= bfd_get_target (ibfd
);
2625 obfd
= bfd_openw (output_filename
, output_target
);
2628 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2632 /* This is a no-op on non-Coff targets. */
2633 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2635 if (! copy_object (ibfd
, obfd
, input_arch
))
2638 /* PR 17512: file: 0f15796a.
2639 If the file could not be copied it may not be in a writeable
2640 state. So use bfd_close_all_done to avoid the possibility of
2641 writing uninitialised data into the file. */
2642 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2645 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2649 if (!bfd_close (ibfd
))
2652 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2658 bfd_error_type obj_error
= bfd_get_error ();
2659 bfd_error_type core_error
;
2661 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2663 /* This probably can't happen.. */
2664 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2665 free (obj_matching
);
2669 core_error
= bfd_get_error ();
2670 /* Report the object error in preference to the core error. */
2671 if (obj_error
!= core_error
)
2672 bfd_set_error (obj_error
);
2674 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2676 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2678 list_matching_formats (obj_matching
);
2679 free (obj_matching
);
2681 if (core_error
== bfd_error_file_ambiguously_recognized
)
2683 list_matching_formats (core_matching
);
2684 free (core_matching
);
2691 /* Add a name to the section renaming list. */
2694 add_section_rename (const char * old_name
, const char * new_name
,
2697 section_rename
* srename
;
2699 /* Check for conflicts first. */
2700 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2701 if (strcmp (srename
->old_name
, old_name
) == 0)
2703 /* Silently ignore duplicate definitions. */
2704 if (strcmp (srename
->new_name
, new_name
) == 0
2705 && srename
->flags
== flags
)
2708 fatal (_("Multiple renames of section %s"), old_name
);
2711 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2713 srename
->old_name
= old_name
;
2714 srename
->new_name
= new_name
;
2715 srename
->flags
= flags
;
2716 srename
->next
= section_rename_list
;
2718 section_rename_list
= srename
;
2721 /* Check the section rename list for a new name of the input section
2722 ISECTION. Return the new name if one is found.
2723 Also set RETURNED_FLAGS to the flags to be used for this section. */
2726 find_section_rename (bfd
* ibfd ATTRIBUTE_UNUSED
, sec_ptr isection
,
2727 flagword
* returned_flags
)
2729 const char * old_name
= bfd_section_name (ibfd
, isection
);
2730 section_rename
* srename
;
2732 /* Default to using the flags of the input section. */
2733 * returned_flags
= bfd_get_section_flags (ibfd
, isection
);
2735 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2736 if (strcmp (srename
->old_name
, old_name
) == 0)
2738 if (srename
->flags
!= (flagword
) -1)
2739 * returned_flags
= srename
->flags
;
2741 return srename
->new_name
;
2747 /* Once each of the sections is copied, we may still need to do some
2748 finalization work for private section headers. Do that here. */
2751 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
2753 /* Allow the BFD backend to copy any private data it understands
2754 from the input section to the output section. */
2755 if (! bfd_copy_private_header_data (ibfd
, obfd
))
2758 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2759 _("error in private header data"));
2763 /* All went well. */
2767 /* Create a section in OBFD with the same
2768 name and attributes as ISECTION in IBFD. */
2771 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2773 bfd
*obfd
= (bfd
*) obfdarg
;
2774 struct section_list
*p
;
2782 char *prefix
= NULL
;
2783 bfd_boolean make_nobits
;
2785 if (is_strip_section (ibfd
, isection
))
2788 /* Get the, possibly new, name of the output section. */
2789 name
= find_section_rename (ibfd
, isection
, & flags
);
2791 /* Prefix sections. */
2792 if ((prefix_alloc_sections_string
)
2793 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
2794 prefix
= prefix_alloc_sections_string
;
2795 else if (prefix_sections_string
)
2796 prefix
= prefix_sections_string
;
2802 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
2808 make_nobits
= FALSE
;
2810 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2811 SECTION_CONTEXT_SET_FLAGS
);
2813 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
2814 else if (strip_symbols
== STRIP_NONDEBUG
2815 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
2816 && !is_nondebug_keep_contents_section (ibfd
, isection
))
2818 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
2819 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
2823 /* Twiddle the input section flags so that it seems to
2824 elf.c:copy_private_bfd_data that section flags have not
2825 changed between input and output sections. This hack
2826 prevents wholesale rewriting of the program headers. */
2827 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
2831 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
2833 if (osection
== NULL
)
2835 err
= _("failed to create output section");
2840 elf_section_type (osection
) = SHT_NOBITS
;
2842 size
= bfd_section_size (ibfd
, isection
);
2844 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
2845 else if (extract_symbol
)
2847 if (! bfd_set_section_size (obfd
, osection
, size
))
2849 err
= _("failed to set size");
2853 vma
= bfd_section_vma (ibfd
, isection
);
2854 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2855 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
2858 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
2864 vma
+= change_section_address
;
2866 if (! bfd_set_section_vma (obfd
, osection
, vma
))
2868 err
= _("failed to set vma");
2872 lma
= isection
->lma
;
2873 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2874 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
2877 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
2883 lma
+= change_section_address
;
2885 osection
->lma
= lma
;
2887 /* FIXME: This is probably not enough. If we change the LMA we
2888 may have to recompute the header for the file as well. */
2889 if (!bfd_set_section_alignment (obfd
,
2891 bfd_section_alignment (ibfd
, isection
)))
2893 err
= _("failed to set alignment");
2897 /* Copy merge entity size. */
2898 osection
->entsize
= isection
->entsize
;
2900 /* This used to be mangle_section; we do here to avoid using
2901 bfd_get_section_by_name since some formats allow multiple
2902 sections with the same name. */
2903 isection
->output_section
= osection
;
2904 isection
->output_offset
= 0;
2906 /* Do not copy backend data if --extract-symbol is passed; anything
2907 that needs to look at the section contents will fail. */
2911 if ((isection
->flags
& SEC_GROUP
) != 0)
2913 asymbol
*gsym
= group_signature (isection
);
2917 gsym
->flags
|= BSF_KEEP
;
2918 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
2919 elf_group_id (isection
) = gsym
;
2923 /* Allow the BFD backend to copy any private data it understands
2924 from the input section to the output section. */
2925 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
2927 err
= _("failed to copy private data");
2931 /* All went well. */
2936 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
2939 /* Return TRUE if input section ISECTION should be skipped. */
2942 skip_section (bfd
*ibfd
, sec_ptr isection
)
2948 /* If we have already failed earlier on,
2949 do not keep on generating complaints now. */
2956 if (is_strip_section (ibfd
, isection
))
2959 if (is_update_section (ibfd
, isection
))
2962 flags
= bfd_get_section_flags (ibfd
, isection
);
2963 if ((flags
& SEC_GROUP
) != 0)
2966 osection
= isection
->output_section
;
2967 size
= bfd_get_section_size (isection
);
2969 if (size
== 0 || osection
== 0)
2975 /* Copy relocations in input section ISECTION of IBFD to an output
2976 section with the same name in OBFDARG. If stripping then don't
2977 copy any relocation info. */
2980 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2982 bfd
*obfd
= (bfd
*) obfdarg
;
2988 if (skip_section (ibfd
, isection
))
2991 osection
= isection
->output_section
;
2993 /* Core files and DWO files do not need to be relocated. */
2994 if (bfd_get_format (obfd
) == bfd_core
|| strip_symbols
== STRIP_NONDWO
)
2998 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3002 /* Do not complain if the target does not support relocations. */
3003 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3008 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3016 bfd_set_reloc (obfd
, osection
, NULL
, 0);
3017 osection
->flags
&= ~SEC_RELOC
;
3021 relpp
= (arelent
**) xmalloc (relsize
);
3022 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
3026 bfd_nonfatal_message (NULL
, ibfd
, isection
,
3027 _("relocation count is negative"));
3031 if (strip_symbols
== STRIP_ALL
)
3033 /* Remove relocations which are not in
3034 keep_strip_specific_list. */
3035 arelent
**temp_relpp
;
3036 long temp_relcount
= 0;
3039 temp_relpp
= (arelent
**) xmalloc (relsize
);
3040 for (i
= 0; i
< relcount
; i
++)
3042 /* PR 17512: file: 9e907e0c. */
3043 if (relpp
[i
]->sym_ptr_ptr
)
3044 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
3045 keep_specific_htab
))
3046 temp_relpp
[temp_relcount
++] = relpp
[i
];
3048 relcount
= temp_relcount
;
3053 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
3056 osection
->flags
&= ~SEC_RELOC
;
3062 /* Copy the data of input section ISECTION of IBFD
3063 to an output section with the same name in OBFD. */
3066 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3068 bfd
*obfd
= (bfd
*) obfdarg
;
3069 struct section_list
*p
;
3073 if (skip_section (ibfd
, isection
))
3076 osection
= isection
->output_section
;
3077 size
= bfd_get_section_size (isection
);
3079 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3080 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3082 bfd_byte
*memhunk
= NULL
;
3084 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
))
3087 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3093 /* We don't handle leftover bytes (too many possible behaviors,
3094 and we don't know what the user wants). The section length
3095 must be a multiple of the number of bytes to swap. */
3096 if ((size
% reverse_bytes
) == 0)
3101 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3102 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3104 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3107 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3108 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3112 /* User must pad the section up in order to do this. */
3113 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3114 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3119 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3120 char *from
= (char *) memhunk
+ copy_byte
;
3121 char *to
= (char *) memhunk
;
3122 char *end
= (char *) memhunk
+ size
;
3125 for (; from
< end
; from
+= interleave
)
3126 for (i
= 0; i
< copy_width
; i
++)
3128 if (&from
[i
] >= end
)
3133 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3134 osection
->lma
/= interleave
;
3137 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3140 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3145 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3146 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3147 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3149 void *memhunk
= xmalloc (size
);
3151 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3152 flag--they can just remove the section entirely and add it
3153 back again. However, we do permit them to turn on the
3154 SEC_HAS_CONTENTS flag, and take it to mean that the section
3155 contents should be zeroed out. */
3157 memset (memhunk
, 0, size
);
3158 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3161 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3168 /* Get all the sections. This is used when --gap-fill or --pad-to is
3172 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3174 asection
***secppp
= (asection
***) secppparg
;
3176 **secppp
= osection
;
3180 /* Sort sections by VMA. This is called via qsort, and is used when
3181 --gap-fill or --pad-to is used. We force non loadable or empty
3182 sections to the front, where they are easier to ignore. */
3185 compare_section_lma (const void *arg1
, const void *arg2
)
3187 const asection
*const *sec1
= (const asection
* const *) arg1
;
3188 const asection
*const *sec2
= (const asection
* const *) arg2
;
3189 flagword flags1
, flags2
;
3191 /* Sort non loadable sections to the front. */
3192 flags1
= (*sec1
)->flags
;
3193 flags2
= (*sec2
)->flags
;
3194 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3195 || (flags1
& SEC_LOAD
) == 0)
3197 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3198 && (flags2
& SEC_LOAD
) != 0)
3203 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3204 || (flags2
& SEC_LOAD
) == 0)
3208 /* Sort sections by LMA. */
3209 if ((*sec1
)->lma
> (*sec2
)->lma
)
3211 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3214 /* Sort sections with the same LMA by size. */
3215 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3217 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3223 /* Mark all the symbols which will be used in output relocations with
3224 the BSF_KEEP flag so that those symbols will not be stripped.
3226 Ignore relocations which will not appear in the output file. */
3229 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3231 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3236 /* Ignore an input section with no corresponding output section. */
3237 if (isection
->output_section
== NULL
)
3240 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3243 /* Do not complain if the target does not support relocations. */
3244 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3246 bfd_fatal (bfd_get_filename (ibfd
));
3252 relpp
= (arelent
**) xmalloc (relsize
);
3253 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3255 bfd_fatal (bfd_get_filename (ibfd
));
3257 /* Examine each symbol used in a relocation. If it's not one of the
3258 special bfd section symbols, then mark it with BSF_KEEP. */
3259 for (i
= 0; i
< relcount
; i
++)
3261 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3262 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3263 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3264 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3271 /* Write out debugging information. */
3274 write_debugging_info (bfd
*obfd
, void *dhandle
,
3275 long *symcountp ATTRIBUTE_UNUSED
,
3276 asymbol
***symppp ATTRIBUTE_UNUSED
)
3278 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3279 return write_ieee_debugging_info (obfd
, dhandle
);
3281 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3282 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3284 bfd_byte
*syms
, *strings
;
3285 bfd_size_type symsize
, stringsize
;
3286 asection
*stabsec
, *stabstrsec
;
3289 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3294 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3295 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3296 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3298 || stabstrsec
== NULL
3299 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3300 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3301 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3302 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3304 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3305 _("can't create debugging section"));
3309 /* We can get away with setting the section contents now because
3310 the next thing the caller is going to do is copy over the
3311 real sections. We may someday have to split the contents
3312 setting out of this function. */
3313 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3314 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3317 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3318 _("can't set debugging section contents"));
3325 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3326 _("don't know how to write debugging information for %s"),
3327 bfd_get_target (obfd
));
3331 /* If neither -D nor -U was specified explicitly,
3332 then use the configured default. */
3334 default_deterministic (void)
3336 if (deterministic
< 0)
3337 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3341 strip_main (int argc
, char *argv
[])
3343 char *input_target
= NULL
;
3344 char *output_target
= NULL
;
3345 bfd_boolean show_version
= FALSE
;
3346 bfd_boolean formats_info
= FALSE
;
3349 char *output_file
= NULL
;
3351 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3352 strip_options
, (int *) 0)) != EOF
)
3357 input_target
= optarg
;
3360 output_target
= optarg
;
3363 input_target
= output_target
= optarg
;
3366 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3367 sections_removed
= TRUE
;
3370 strip_symbols
= STRIP_ALL
;
3374 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3375 strip_symbols
= STRIP_DEBUG
;
3377 case OPTION_STRIP_DWO
:
3378 strip_symbols
= STRIP_DWO
;
3380 case OPTION_STRIP_UNNEEDED
:
3381 strip_symbols
= STRIP_UNNEEDED
;
3384 add_specific_symbol (optarg
, keep_specific_htab
);
3387 add_specific_symbol (optarg
, strip_specific_htab
);
3390 output_file
= optarg
;
3393 preserve_dates
= TRUE
;
3396 deterministic
= TRUE
;
3399 deterministic
= FALSE
;
3402 discard_locals
= LOCALS_ALL
;
3405 discard_locals
= LOCALS_START_L
;
3411 show_version
= TRUE
;
3413 case OPTION_FORMATS_INFO
:
3414 formats_info
= TRUE
;
3416 case OPTION_ONLY_KEEP_DEBUG
:
3417 strip_symbols
= STRIP_NONDEBUG
;
3419 case OPTION_KEEP_FILE_SYMBOLS
:
3420 keep_file_symbols
= 1;
3423 /* We've been given a long option. */
3430 strip_usage (stdout
, 0);
3432 strip_usage (stderr
, 1);
3443 print_version ("strip");
3445 default_deterministic ();
3447 /* Default is to strip all symbols. */
3448 if (strip_symbols
== STRIP_UNDEF
3449 && discard_locals
== LOCALS_UNDEF
3450 && htab_elements (strip_specific_htab
) == 0)
3451 strip_symbols
= STRIP_ALL
;
3453 if (output_target
== NULL
)
3454 output_target
= input_target
;
3458 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3459 strip_usage (stderr
, 1);
3461 for (; i
< argc
; i
++)
3463 int hold_status
= status
;
3464 struct stat statbuf
;
3467 if (get_file_size (argv
[i
]) < 1)
3474 /* No need to check the return value of stat().
3475 It has already been checked in get_file_size(). */
3476 stat (argv
[i
], &statbuf
);
3478 if (output_file
== NULL
3479 || filename_cmp (argv
[i
], output_file
) == 0)
3480 tmpname
= make_tempname (argv
[i
]);
3482 tmpname
= output_file
;
3484 if (tmpname
== NULL
)
3486 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3487 _("could not create temporary file to hold stripped copy"));
3493 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3497 set_times (tmpname
, &statbuf
);
3498 if (output_file
!= tmpname
)
3499 status
= (smart_rename (tmpname
,
3500 output_file
? output_file
: argv
[i
],
3501 preserve_dates
) != 0);
3503 status
= hold_status
;
3506 unlink_if_ordinary (tmpname
);
3507 if (output_file
!= tmpname
)
3514 /* Set up PE subsystem. */
3517 set_pe_subsystem (const char *s
)
3519 const char *version
, *subsystem
;
3529 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3530 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3531 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3532 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3533 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3534 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3535 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3536 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3537 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3538 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3544 /* Check for the presence of a version number. */
3545 version
= strchr (s
, ':');
3546 if (version
== NULL
)
3550 int len
= version
- s
;
3554 version
= copy
+ 1 + len
;
3555 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3557 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3559 non_fatal (_("%s: bad version in PE subsystem"), s
);
3562 /* Check for numeric subsystem. */
3563 value
= (short) strtol (subsystem
, ©
, 0);
3566 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3567 if (v
[i
].value
== value
)
3569 pe_subsystem
= value
;
3570 set_def
= v
[i
].set_def
;
3576 /* Search for subsystem by name. */
3577 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3578 if (strcmp (subsystem
, v
[i
].name
) == 0)
3580 pe_subsystem
= v
[i
].value
;
3581 set_def
= v
[i
].set_def
;
3589 fatal (_("unknown PE subsystem: %s"), s
);
3594 if (pe_file_alignment
== (bfd_vma
) -1)
3595 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3596 if (pe_section_alignment
== (bfd_vma
) -1)
3597 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3601 free ((char *) subsystem
);
3604 /* Convert EFI target to PEI target. */
3607 convert_efi_target (char *efi
)
3613 if (strcmp (efi
+ 4, "ia32") == 0)
3615 /* Change ia32 to i386. */
3620 else if (strcmp (efi
+ 4, "x86_64") == 0)
3622 /* Change x86_64 to x86-64. */
3627 /* Allocate and return a pointer to a struct section_add, initializing the
3628 structure using ARG, a string in the format "sectionname=filename".
3629 The returned structure will have its next pointer set to NEXT. The
3630 OPTION field is the name of the command line option currently being
3631 parsed, and is only used if an error needs to be reported. */
3633 static struct section_add
*
3634 init_section_add (const char *arg
,
3635 struct section_add
*next
,
3638 struct section_add
*pa
;
3641 s
= strchr (arg
, '=');
3643 fatal (_("bad format for %s"), option
);
3645 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3646 pa
->name
= xstrndup (arg
, s
- arg
);
3647 pa
->filename
= s
+ 1;
3649 pa
->contents
= NULL
;
3655 /* Load the file specified in PA, allocating memory to hold the file
3656 contents, and store a pointer to the allocated memory in the contents
3657 field of PA. The size field of PA is also updated. All errors call
3661 section_add_load_file (struct section_add
*pa
)
3666 /* We don't use get_file_size so that we can do
3667 --add-section .note.GNU_stack=/dev/null
3668 get_file_size doesn't work on /dev/null. */
3670 f
= fopen (pa
->filename
, FOPEN_RB
);
3672 fatal (_("cannot open: %s: %s"),
3673 pa
->filename
, strerror (errno
));
3677 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3685 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3688 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3690 fatal (_("%s: fread failed"), pa
->filename
);
3701 copy_main (int argc
, char *argv
[])
3703 char *input_filename
= NULL
;
3704 char *output_filename
= NULL
;
3706 char *input_target
= NULL
;
3707 char *output_target
= NULL
;
3708 bfd_boolean show_version
= FALSE
;
3709 bfd_boolean change_warn
= TRUE
;
3710 bfd_boolean formats_info
= FALSE
;
3712 struct stat statbuf
;
3713 const bfd_arch_info_type
*input_arch
= NULL
;
3715 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3716 copy_options
, (int *) 0)) != EOF
)
3721 copy_byte
= atoi (optarg
);
3723 fatal (_("byte number must be non-negative"));
3727 input_arch
= bfd_scan_arch (optarg
);
3728 if (input_arch
== NULL
)
3729 fatal (_("architecture %s unknown"), optarg
);
3735 interleave
= atoi (optarg
);
3737 fatal (_("interleave must be positive"));
3743 case OPTION_INTERLEAVE_WIDTH
:
3744 copy_width
= atoi (optarg
);
3746 fatal(_("interleave width must be positive"));
3750 case 's': /* "source" - 'I' is preferred */
3751 input_target
= optarg
;
3755 case 'd': /* "destination" - 'O' is preferred */
3756 output_target
= optarg
;
3760 input_target
= output_target
= optarg
;
3764 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
3765 sections_copied
= TRUE
;
3769 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3770 sections_removed
= TRUE
;
3774 strip_symbols
= STRIP_ALL
;
3778 strip_symbols
= STRIP_DEBUG
;
3781 case OPTION_STRIP_DWO
:
3782 strip_symbols
= STRIP_DWO
;
3785 case OPTION_STRIP_UNNEEDED
:
3786 strip_symbols
= STRIP_UNNEEDED
;
3789 case OPTION_ONLY_KEEP_DEBUG
:
3790 strip_symbols
= STRIP_NONDEBUG
;
3793 case OPTION_KEEP_FILE_SYMBOLS
:
3794 keep_file_symbols
= 1;
3797 case OPTION_ADD_GNU_DEBUGLINK
:
3798 long_section_names
= ENABLE
;
3799 gnu_debuglink_filename
= optarg
;
3803 add_specific_symbol (optarg
, keep_specific_htab
);
3807 add_specific_symbol (optarg
, strip_specific_htab
);
3810 case OPTION_STRIP_UNNEEDED_SYMBOL
:
3811 add_specific_symbol (optarg
, strip_unneeded_htab
);
3815 add_specific_symbol (optarg
, localize_specific_htab
);
3818 case OPTION_GLOBALIZE_SYMBOL
:
3819 add_specific_symbol (optarg
, globalize_specific_htab
);
3823 add_specific_symbol (optarg
, keepglobal_specific_htab
);
3827 add_specific_symbol (optarg
, weaken_specific_htab
);
3831 preserve_dates
= TRUE
;
3835 deterministic
= TRUE
;
3839 deterministic
= FALSE
;
3847 discard_locals
= LOCALS_ALL
;
3851 discard_locals
= LOCALS_START_L
;
3859 show_version
= TRUE
;
3862 case OPTION_FORMATS_INFO
:
3863 formats_info
= TRUE
;
3870 case OPTION_ADD_SECTION
:
3871 add_sections
= init_section_add (optarg
, add_sections
,
3873 section_add_load_file (add_sections
);
3876 case OPTION_UPDATE_SECTION
:
3877 update_sections
= init_section_add (optarg
, update_sections
,
3878 "--update-section");
3879 section_add_load_file (update_sections
);
3882 case OPTION_DUMP_SECTION
:
3883 dump_sections
= init_section_add (optarg
, dump_sections
,
3887 case OPTION_CHANGE_START
:
3888 change_start
= parse_vma (optarg
, "--change-start");
3891 case OPTION_CHANGE_SECTION_ADDRESS
:
3892 case OPTION_CHANGE_SECTION_LMA
:
3893 case OPTION_CHANGE_SECTION_VMA
:
3895 struct section_list
* p
;
3896 unsigned int context
= 0;
3900 char *option
= NULL
;
3905 case OPTION_CHANGE_SECTION_ADDRESS
:
3906 option
= "--change-section-address";
3907 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
3909 case OPTION_CHANGE_SECTION_LMA
:
3910 option
= "--change-section-lma";
3911 context
= SECTION_CONTEXT_ALTER_LMA
;
3913 case OPTION_CHANGE_SECTION_VMA
:
3914 option
= "--change-section-vma";
3915 context
= SECTION_CONTEXT_ALTER_VMA
;
3919 s
= strchr (optarg
, '=');
3922 s
= strchr (optarg
, '+');
3925 s
= strchr (optarg
, '-');
3927 fatal (_("bad format for %s"), option
);
3932 /* Correct the context. */
3935 case OPTION_CHANGE_SECTION_ADDRESS
:
3936 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
3938 case OPTION_CHANGE_SECTION_LMA
:
3939 context
= SECTION_CONTEXT_SET_LMA
;
3941 case OPTION_CHANGE_SECTION_VMA
:
3942 context
= SECTION_CONTEXT_SET_VMA
;
3948 name
= (char *) xmalloc (len
+ 1);
3949 strncpy (name
, optarg
, len
);
3952 p
= find_section_list (name
, TRUE
, context
);
3954 val
= parse_vma (s
+ 1, option
);
3960 case OPTION_CHANGE_SECTION_ADDRESS
:
3964 case OPTION_CHANGE_SECTION_LMA
:
3968 case OPTION_CHANGE_SECTION_VMA
:
3975 case OPTION_CHANGE_ADDRESSES
:
3976 change_section_address
= parse_vma (optarg
, "--change-addresses");
3977 change_start
= change_section_address
;
3980 case OPTION_CHANGE_WARNINGS
:
3984 case OPTION_CHANGE_LEADING_CHAR
:
3985 change_leading_char
= TRUE
;
3988 case OPTION_COMPRESS_DEBUG_SECTIONS
:
3989 do_debug_sections
= compress
;
3992 case OPTION_DEBUGGING
:
3993 convert_debugging
= TRUE
;
3996 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
3997 do_debug_sections
= decompress
;
4000 case OPTION_GAP_FILL
:
4002 bfd_vma gap_fill_vma
;
4004 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
4005 gap_fill
= (bfd_byte
) gap_fill_vma
;
4006 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
4010 sprintf_vma (buff
, gap_fill_vma
);
4012 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4015 gap_fill_set
= TRUE
;
4019 case OPTION_NO_CHANGE_WARNINGS
:
4020 change_warn
= FALSE
;
4024 pad_to
= parse_vma (optarg
, "--pad-to");
4028 case OPTION_REMOVE_LEADING_CHAR
:
4029 remove_leading_char
= TRUE
;
4032 case OPTION_REDEFINE_SYM
:
4034 /* Push this redefinition onto redefine_symbol_list. */
4038 const char *nextarg
;
4039 char *source
, *target
;
4041 s
= strchr (optarg
, '=');
4043 fatal (_("bad format for %s"), "--redefine-sym");
4046 source
= (char *) xmalloc (len
+ 1);
4047 strncpy (source
, optarg
, len
);
4051 len
= strlen (nextarg
);
4052 target
= (char *) xmalloc (len
+ 1);
4053 strcpy (target
, nextarg
);
4055 redefine_list_append ("--redefine-sym", source
, target
);
4062 case OPTION_REDEFINE_SYMS
:
4063 add_redefine_syms_file (optarg
);
4066 case OPTION_SET_SECTION_FLAGS
:
4068 struct section_list
*p
;
4073 s
= strchr (optarg
, '=');
4075 fatal (_("bad format for %s"), "--set-section-flags");
4078 name
= (char *) xmalloc (len
+ 1);
4079 strncpy (name
, optarg
, len
);
4082 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
4084 p
->flags
= parse_flags (s
+ 1);
4088 case OPTION_RENAME_SECTION
:
4091 const char *eq
, *fl
;
4096 eq
= strchr (optarg
, '=');
4098 fatal (_("bad format for %s"), "--rename-section");
4102 fatal (_("bad format for %s"), "--rename-section");
4104 old_name
= (char *) xmalloc (len
+ 1);
4105 strncpy (old_name
, optarg
, len
);
4109 fl
= strchr (eq
, ',');
4112 flags
= parse_flags (fl
+ 1);
4122 fatal (_("bad format for %s"), "--rename-section");
4124 new_name
= (char *) xmalloc (len
+ 1);
4125 strncpy (new_name
, eq
, len
);
4128 add_section_rename (old_name
, new_name
, flags
);
4132 case OPTION_SET_START
:
4133 set_start
= parse_vma (optarg
, "--set-start");
4134 set_start_set
= TRUE
;
4137 case OPTION_SREC_LEN
:
4138 Chunk
= parse_vma (optarg
, "--srec-len");
4141 case OPTION_SREC_FORCES3
:
4145 case OPTION_STRIP_SYMBOLS
:
4146 add_specific_symbols (optarg
, strip_specific_htab
);
4149 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4150 add_specific_symbols (optarg
, strip_unneeded_htab
);
4153 case OPTION_KEEP_SYMBOLS
:
4154 add_specific_symbols (optarg
, keep_specific_htab
);
4157 case OPTION_LOCALIZE_HIDDEN
:
4158 localize_hidden
= TRUE
;
4161 case OPTION_LOCALIZE_SYMBOLS
:
4162 add_specific_symbols (optarg
, localize_specific_htab
);
4165 case OPTION_LONG_SECTION_NAMES
:
4166 if (!strcmp ("enable", optarg
))
4167 long_section_names
= ENABLE
;
4168 else if (!strcmp ("disable", optarg
))
4169 long_section_names
= DISABLE
;
4170 else if (!strcmp ("keep", optarg
))
4171 long_section_names
= KEEP
;
4173 fatal (_("unknown long section names option '%s'"), optarg
);
4176 case OPTION_GLOBALIZE_SYMBOLS
:
4177 add_specific_symbols (optarg
, globalize_specific_htab
);
4180 case OPTION_KEEPGLOBAL_SYMBOLS
:
4181 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4184 case OPTION_WEAKEN_SYMBOLS
:
4185 add_specific_symbols (optarg
, weaken_specific_htab
);
4188 case OPTION_ALT_MACH_CODE
:
4189 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4190 if (use_alt_mach_code
== 0)
4191 fatal (_("unable to parse alternative machine code"));
4194 case OPTION_PREFIX_SYMBOLS
:
4195 prefix_symbols_string
= optarg
;
4198 case OPTION_PREFIX_SECTIONS
:
4199 prefix_sections_string
= optarg
;
4202 case OPTION_PREFIX_ALLOC_SECTIONS
:
4203 prefix_alloc_sections_string
= optarg
;
4206 case OPTION_READONLY_TEXT
:
4207 bfd_flags_to_set
|= WP_TEXT
;
4208 bfd_flags_to_clear
&= ~WP_TEXT
;
4211 case OPTION_WRITABLE_TEXT
:
4212 bfd_flags_to_clear
|= WP_TEXT
;
4213 bfd_flags_to_set
&= ~WP_TEXT
;
4217 bfd_flags_to_set
|= D_PAGED
;
4218 bfd_flags_to_clear
&= ~D_PAGED
;
4222 bfd_flags_to_clear
|= D_PAGED
;
4223 bfd_flags_to_set
&= ~D_PAGED
;
4226 case OPTION_EXTRACT_DWO
:
4227 strip_symbols
= STRIP_NONDWO
;
4230 case OPTION_EXTRACT_SYMBOL
:
4231 extract_symbol
= TRUE
;
4234 case OPTION_REVERSE_BYTES
:
4236 int prev
= reverse_bytes
;
4238 reverse_bytes
= atoi (optarg
);
4239 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4240 fatal (_("number of bytes to reverse must be positive and even"));
4242 if (prev
&& prev
!= reverse_bytes
)
4243 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4248 case OPTION_FILE_ALIGNMENT
:
4249 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4255 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4257 || (*end
!= '.' && *end
!= '\0'))
4258 non_fatal (_("%s: invalid reserve value for --heap"),
4260 else if (*end
!= '\0')
4262 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4264 non_fatal (_("%s: invalid commit value for --heap"),
4270 case OPTION_IMAGE_BASE
:
4271 pe_image_base
= parse_vma (optarg
, "--image-base");
4274 case OPTION_SECTION_ALIGNMENT
:
4275 pe_section_alignment
= parse_vma (optarg
,
4276 "--section-alignment");
4279 case OPTION_SUBSYSTEM
:
4280 set_pe_subsystem (optarg
);
4286 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4288 || (*end
!= '.' && *end
!= '\0'))
4289 non_fatal (_("%s: invalid reserve value for --stack"),
4291 else if (*end
!= '\0')
4293 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4295 non_fatal (_("%s: invalid commit value for --stack"),
4302 /* We've been given a long option. */
4307 copy_usage (stdout
, 0);
4310 copy_usage (stderr
, 1);
4321 print_version ("objcopy");
4323 if (interleave
&& copy_byte
== -1)
4324 fatal (_("interleave start byte must be set with --byte"));
4326 if (copy_byte
>= interleave
)
4327 fatal (_("byte number must be less than interleave"));
4329 if (copy_width
> interleave
- copy_byte
)
4330 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4332 if (optind
== argc
|| optind
+ 2 < argc
)
4333 copy_usage (stderr
, 1);
4335 input_filename
= argv
[optind
];
4336 if (optind
+ 1 < argc
)
4337 output_filename
= argv
[optind
+ 1];
4339 default_deterministic ();
4341 /* Default is to strip no symbols. */
4342 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4343 strip_symbols
= STRIP_NONE
;
4345 if (output_target
== NULL
)
4346 output_target
= input_target
;
4348 /* Convert input EFI target to PEI target. */
4349 if (input_target
!= NULL
4350 && strncmp (input_target
, "efi-", 4) == 0)
4354 efi
= xstrdup (output_target
+ 4);
4355 if (strncmp (efi
, "bsdrv-", 6) == 0
4356 || strncmp (efi
, "rtdrv-", 6) == 0)
4358 else if (strncmp (efi
, "app-", 4) != 0)
4359 fatal (_("unknown input EFI target: %s"), input_target
);
4362 convert_efi_target (efi
);
4365 /* Convert output EFI target to PEI target. */
4366 if (output_target
!= NULL
4367 && strncmp (output_target
, "efi-", 4) == 0)
4371 efi
= xstrdup (output_target
+ 4);
4372 if (strncmp (efi
, "app-", 4) == 0)
4374 if (pe_subsystem
== -1)
4375 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4377 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4379 if (pe_subsystem
== -1)
4380 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4383 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4385 if (pe_subsystem
== -1)
4386 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4390 fatal (_("unknown output EFI target: %s"), output_target
);
4392 if (pe_file_alignment
== (bfd_vma
) -1)
4393 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4394 if (pe_section_alignment
== (bfd_vma
) -1)
4395 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4397 output_target
= efi
;
4398 convert_efi_target (efi
);
4402 if (stat (input_filename
, & statbuf
) < 0)
4403 fatal (_("warning: could not locate '%s'. System error message: %s"),
4404 input_filename
, strerror (errno
));
4406 /* If there is no destination file, or the source and destination files
4407 are the same, then create a temp and rename the result into the input. */
4408 if (output_filename
== NULL
4409 || filename_cmp (input_filename
, output_filename
) == 0)
4410 tmpname
= make_tempname (input_filename
);
4412 tmpname
= output_filename
;
4414 if (tmpname
== NULL
)
4415 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4416 input_filename
, strerror (errno
));
4418 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4422 set_times (tmpname
, &statbuf
);
4423 if (tmpname
!= output_filename
)
4424 status
= (smart_rename (tmpname
, input_filename
,
4425 preserve_dates
) != 0);
4428 unlink_if_ordinary (tmpname
);
4432 struct section_list
*p
;
4434 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4438 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4442 sprintf_vma (buff
, p
->vma_val
);
4444 /* xgettext:c-format */
4445 non_fatal (_("%s %s%c0x%s never used"),
4446 "--change-section-vma",
4448 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4452 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4456 sprintf_vma (buff
, p
->lma_val
);
4458 /* xgettext:c-format */
4459 non_fatal (_("%s %s%c0x%s never used"),
4460 "--change-section-lma",
4462 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4473 main (int argc
, char *argv
[])
4475 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4476 setlocale (LC_MESSAGES
, "");
4478 #if defined (HAVE_SETLOCALE)
4479 setlocale (LC_CTYPE
, "");
4481 bindtextdomain (PACKAGE
, LOCALEDIR
);
4482 textdomain (PACKAGE
);
4484 program_name
= argv
[0];
4485 xmalloc_set_program_name (program_name
);
4487 START_PROGRESS (program_name
, 0);
4489 expandargv (&argc
, &argv
);
4491 strip_symbols
= STRIP_UNDEF
;
4492 discard_locals
= LOCALS_UNDEF
;
4495 set_default_bfd_target ();
4499 int i
= strlen (program_name
);
4500 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4501 /* Drop the .exe suffix, if any. */
4502 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4505 program_name
[i
] = '\0';
4508 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4511 create_symbol_htabs ();
4514 bfd_set_error_program_name (argv
[0]);
4517 strip_main (argc
, argv
);
4519 copy_main (argc
, argv
);
4521 END_PROGRESS (program_name
);