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 dump from the output BFD. */
190 static struct section_add
*dump_sections
;
192 /* If non-NULL the argument to --add-gnu-debuglink.
193 This should be the filename to store in the .gnu_debuglink section. */
194 static const char * gnu_debuglink_filename
= NULL
;
196 /* Whether to convert debugging information. */
197 static bfd_boolean convert_debugging
= FALSE
;
199 /* Whether to compress/decompress DWARF debug sections. */
205 } do_debug_sections
= nothing
;
207 /* Whether to change the leading character in symbol names. */
208 static bfd_boolean change_leading_char
= FALSE
;
210 /* Whether to remove the leading character from global symbol names. */
211 static bfd_boolean remove_leading_char
= FALSE
;
213 /* Whether to permit wildcard in symbol comparison. */
214 static bfd_boolean wildcard
= FALSE
;
216 /* True if --localize-hidden is in effect. */
217 static bfd_boolean localize_hidden
= FALSE
;
219 /* List of symbols to strip, keep, localize, keep-global, weaken,
221 static htab_t strip_specific_htab
= NULL
;
222 static htab_t strip_unneeded_htab
= NULL
;
223 static htab_t keep_specific_htab
= NULL
;
224 static htab_t localize_specific_htab
= NULL
;
225 static htab_t globalize_specific_htab
= NULL
;
226 static htab_t keepglobal_specific_htab
= NULL
;
227 static htab_t weaken_specific_htab
= NULL
;
228 static struct redefine_node
*redefine_sym_list
= NULL
;
230 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
231 static bfd_boolean weaken
= FALSE
;
233 /* If this is TRUE, we retain BSF_FILE symbols. */
234 static bfd_boolean keep_file_symbols
= FALSE
;
236 /* Prefix symbols/sections. */
237 static char *prefix_symbols_string
= 0;
238 static char *prefix_sections_string
= 0;
239 static char *prefix_alloc_sections_string
= 0;
241 /* True if --extract-symbol was passed on the command line. */
242 static bfd_boolean extract_symbol
= FALSE
;
244 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
245 of <reverse_bytes> bytes within each output section. */
246 static int reverse_bytes
= 0;
248 /* For Coff objects, we may want to allow or disallow long section names,
249 or preserve them where found in the inputs. Debug info relies on them. */
250 enum long_section_name_handling
257 /* The default long section handling mode is to preserve them.
258 This is also the only behaviour for 'strip'. */
259 static enum long_section_name_handling long_section_names
= KEEP
;
261 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
262 enum command_line_switch
264 OPTION_ADD_SECTION
=150,
266 OPTION_CHANGE_ADDRESSES
,
267 OPTION_CHANGE_LEADING_CHAR
,
269 OPTION_CHANGE_SECTION_ADDRESS
,
270 OPTION_CHANGE_SECTION_LMA
,
271 OPTION_CHANGE_SECTION_VMA
,
272 OPTION_CHANGE_WARNINGS
,
273 OPTION_COMPRESS_DEBUG_SECTIONS
,
275 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
277 OPTION_NO_CHANGE_WARNINGS
,
279 OPTION_REMOVE_LEADING_CHAR
,
280 OPTION_SET_SECTION_FLAGS
,
282 OPTION_STRIP_UNNEEDED
,
285 OPTION_REDEFINE_SYMS
,
288 OPTION_STRIP_SYMBOLS
,
289 OPTION_STRIP_UNNEEDED_SYMBOL
,
290 OPTION_STRIP_UNNEEDED_SYMBOLS
,
292 OPTION_LOCALIZE_HIDDEN
,
293 OPTION_LOCALIZE_SYMBOLS
,
294 OPTION_LONG_SECTION_NAMES
,
295 OPTION_GLOBALIZE_SYMBOL
,
296 OPTION_GLOBALIZE_SYMBOLS
,
297 OPTION_KEEPGLOBAL_SYMBOLS
,
298 OPTION_WEAKEN_SYMBOLS
,
299 OPTION_RENAME_SECTION
,
300 OPTION_ALT_MACH_CODE
,
301 OPTION_PREFIX_SYMBOLS
,
302 OPTION_PREFIX_SECTIONS
,
303 OPTION_PREFIX_ALLOC_SECTIONS
,
305 OPTION_ADD_GNU_DEBUGLINK
,
306 OPTION_ONLY_KEEP_DEBUG
,
307 OPTION_KEEP_FILE_SYMBOLS
,
308 OPTION_READONLY_TEXT
,
309 OPTION_WRITABLE_TEXT
,
312 OPTION_EXTRACT_SYMBOL
,
313 OPTION_REVERSE_BYTES
,
314 OPTION_FILE_ALIGNMENT
,
317 OPTION_SECTION_ALIGNMENT
,
319 OPTION_INTERLEAVE_WIDTH
,
325 /* Options to handle if running as "strip". */
327 static struct option strip_options
[] =
329 {"disable-deterministic-archives", no_argument
, 0, 'U'},
330 {"discard-all", no_argument
, 0, 'x'},
331 {"discard-locals", no_argument
, 0, 'X'},
332 {"enable-deterministic-archives", no_argument
, 0, 'D'},
333 {"format", required_argument
, 0, 'F'}, /* Obsolete */
334 {"help", no_argument
, 0, 'h'},
335 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
336 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
337 {"input-target", required_argument
, 0, 'I'},
338 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
339 {"keep-symbol", required_argument
, 0, 'K'},
340 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
341 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
342 {"output-target", required_argument
, 0, 'O'},
343 {"output-file", required_argument
, 0, 'o'},
344 {"preserve-dates", no_argument
, 0, 'p'},
345 {"remove-section", required_argument
, 0, 'R'},
346 {"strip-all", no_argument
, 0, 's'},
347 {"strip-debug", no_argument
, 0, 'S'},
348 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
349 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
350 {"strip-symbol", required_argument
, 0, 'N'},
351 {"target", required_argument
, 0, 'F'},
352 {"verbose", no_argument
, 0, 'v'},
353 {"version", no_argument
, 0, 'V'},
354 {"wildcard", no_argument
, 0, 'w'},
355 {0, no_argument
, 0, 0}
358 /* Options to handle if running as "objcopy". */
360 static struct option copy_options
[] =
362 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
363 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
364 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
365 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
366 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
367 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
368 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
369 {"binary-architecture", required_argument
, 0, 'B'},
370 {"byte", required_argument
, 0, 'b'},
371 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
372 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
373 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
374 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
375 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
376 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
377 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
378 {"compress-debug-sections", no_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
379 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
380 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
381 {"disable-deterministic-archives", no_argument
, 0, 'U'},
382 {"discard-all", no_argument
, 0, 'x'},
383 {"discard-locals", no_argument
, 0, 'X'},
384 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
385 {"enable-deterministic-archives", no_argument
, 0, 'D'},
386 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
387 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
388 {"format", required_argument
, 0, 'F'}, /* Obsolete */
389 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
390 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
391 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
392 {"help", no_argument
, 0, 'h'},
393 {"impure", no_argument
, 0, OPTION_IMPURE
},
394 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
395 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
396 {"input-target", required_argument
, 0, 'I'},
397 {"interleave", optional_argument
, 0, 'i'},
398 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
399 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
400 {"keep-global-symbol", required_argument
, 0, 'G'},
401 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
402 {"keep-symbol", required_argument
, 0, 'K'},
403 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
404 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
405 {"localize-symbol", required_argument
, 0, 'L'},
406 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
407 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
408 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
409 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
410 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
411 {"only-section", required_argument
, 0, 'j'},
412 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
413 {"output-target", required_argument
, 0, 'O'},
414 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
415 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
416 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
417 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
418 {"preserve-dates", no_argument
, 0, 'p'},
419 {"pure", no_argument
, 0, OPTION_PURE
},
420 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
421 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
422 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
423 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
424 {"remove-section", required_argument
, 0, 'R'},
425 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
426 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
427 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
428 {"set-start", required_argument
, 0, OPTION_SET_START
},
429 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
430 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
431 {"strip-all", no_argument
, 0, 'S'},
432 {"strip-debug", no_argument
, 0, 'g'},
433 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
434 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
435 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
436 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
437 {"strip-symbol", required_argument
, 0, 'N'},
438 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
439 {"target", required_argument
, 0, 'F'},
440 {"verbose", no_argument
, 0, 'v'},
441 {"version", no_argument
, 0, 'V'},
442 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
443 {"weaken-symbol", required_argument
, 0, 'W'},
444 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
445 {"wildcard", no_argument
, 0, 'w'},
446 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
447 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
448 {"heap", required_argument
, 0, OPTION_HEAP
},
449 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
450 {"section-alignment", required_argument
, 0, OPTION_SECTION_ALIGNMENT
},
451 {"stack", required_argument
, 0, OPTION_STACK
},
452 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
453 {0, no_argument
, 0, 0}
457 extern char *program_name
;
459 /* This flag distinguishes between strip and objcopy:
460 1 means this is 'strip'; 0 means this is 'objcopy'.
461 -1 means if we should use argv[0] to decide. */
464 /* The maximum length of an S record. This variable is declared in srec.c
465 and can be modified by the --srec-len parameter. */
466 extern unsigned int Chunk
;
468 /* Restrict the generation of Srecords to type S3 only.
469 This variable is declare in bfd/srec.c and can be toggled
470 on by the --srec-forceS3 command line switch. */
471 extern bfd_boolean S3Forced
;
473 /* Forward declarations. */
474 static void setup_section (bfd
*, asection
*, void *);
475 static void setup_bfd_headers (bfd
*, bfd
*);
476 static void copy_relocations_in_section (bfd
*, asection
*, void *);
477 static void copy_section (bfd
*, asection
*, void *);
478 static void get_sections (bfd
*, asection
*, void *);
479 static int compare_section_lma (const void *, const void *);
480 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
481 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
482 static const char *lookup_sym_redefinition (const char *);
485 copy_usage (FILE *stream
, int exit_status
)
487 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
488 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
489 fprintf (stream
, _(" The options are:\n"));
490 fprintf (stream
, _("\
491 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
492 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
493 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
494 -F --target <bfdname> Set both input and output format to <bfdname>\n\
495 --debugging Convert debugging information, if possible\n\
496 -p --preserve-dates Copy modified/access timestamps to the output\n"));
497 if (DEFAULT_AR_DETERMINISTIC
)
498 fprintf (stream
, _("\
499 -D --enable-deterministic-archives\n\
500 Produce deterministic output when stripping archives (default)\n\
501 -U --disable-deterministic-archives\n\
502 Disable -D behavior\n"));
504 fprintf (stream
, _("\
505 -D --enable-deterministic-archives\n\
506 Produce deterministic output when stripping archives\n\
507 -U --disable-deterministic-archives\n\
508 Disable -D behavior (default)\n"));
509 fprintf (stream
, _("\
510 -j --only-section <name> Only copy section <name> into the output\n\
511 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
512 -R --remove-section <name> Remove section <name> from the output\n\
513 -S --strip-all Remove all symbol and relocation information\n\
514 -g --strip-debug Remove all debugging symbols & sections\n\
515 --strip-dwo Remove all DWO sections\n\
516 --strip-unneeded Remove all symbols not needed by relocations\n\
517 -N --strip-symbol <name> Do not copy symbol <name>\n\
518 --strip-unneeded-symbol <name>\n\
519 Do not copy symbol <name> unless needed by\n\
521 --only-keep-debug Strip everything but the debug information\n\
522 --extract-dwo Copy only DWO sections\n\
523 --extract-symbol Remove section contents but keep symbols\n\
524 -K --keep-symbol <name> Do not strip symbol <name>\n\
525 --keep-file-symbols Do not strip file symbol(s)\n\
526 --localize-hidden Turn all ELF hidden symbols into locals\n\
527 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
528 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
529 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
530 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
531 --weaken Force all global symbols to be marked as weak\n\
532 -w --wildcard Permit wildcard in symbol comparison\n\
533 -x --discard-all Remove all non-global symbols\n\
534 -X --discard-locals Remove any compiler-generated symbols\n\
535 -i --interleave [<number>] Only copy N out of every <number> bytes\n\
536 --interleave-width <number> Set N for --interleave\n\
537 -b --byte <num> Select byte <num> in every interleaved block\n\
538 --gap-fill <val> Fill gaps between sections with <val>\n\
539 --pad-to <addr> Pad the last section up to address <addr>\n\
540 --set-start <addr> Set the start address to <addr>\n\
541 {--change-start|--adjust-start} <incr>\n\
542 Add <incr> to the start address\n\
543 {--change-addresses|--adjust-vma} <incr>\n\
544 Add <incr> to LMA, VMA and start addresses\n\
545 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
546 Change LMA and VMA of section <name> by <val>\n\
547 --change-section-lma <name>{=|+|-}<val>\n\
548 Change the LMA of section <name> by <val>\n\
549 --change-section-vma <name>{=|+|-}<val>\n\
550 Change the VMA of section <name> by <val>\n\
551 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
552 Warn if a named section does not exist\n\
553 --set-section-flags <name>=<flags>\n\
554 Set section <name>'s properties to <flags>\n\
555 --add-section <name>=<file> Add section <name> found in <file> to output\n\
556 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
557 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
558 --long-section-names {enable|disable|keep}\n\
559 Handle long section names in Coff objects.\n\
560 --change-leading-char Force output format's leading character style\n\
561 --remove-leading-char Remove leading character from global symbols\n\
562 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
563 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
564 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
566 --srec-len <number> Restrict the length of generated Srecords\n\
567 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
568 --strip-symbols <file> -N for all symbols listed in <file>\n\
569 --strip-unneeded-symbols <file>\n\
570 --strip-unneeded-symbol for all symbols listed\n\
572 --keep-symbols <file> -K for all symbols listed in <file>\n\
573 --localize-symbols <file> -L for all symbols listed in <file>\n\
574 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
575 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
576 --weaken-symbols <file> -W for all symbols listed in <file>\n\
577 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
578 --writable-text Mark the output text as writable\n\
579 --readonly-text Make the output text write protected\n\
580 --pure Mark the output file as demand paged\n\
581 --impure Mark the output file as impure\n\
582 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
583 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
584 --prefix-alloc-sections <prefix>\n\
585 Add <prefix> to start of every allocatable\n\
587 --file-alignment <num> Set PE file alignment to <num>\n\
588 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
590 --image-base <address> Set PE image base to <address>\n\
591 --section-alignment <num> Set PE section alignment to <num>\n\
592 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
594 --subsystem <name>[:<version>]\n\
595 Set PE subsystem to <name> [& <version>]\n\
596 --compress-debug-sections Compress DWARF debug sections using zlib\n\
597 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
598 -v --verbose List all object files modified\n\
599 @<file> Read options from <file>\n\
600 -V --version Display this program's version number\n\
601 -h --help Display this output\n\
602 --info List object formats & architectures supported\n\
604 list_supported_targets (program_name
, stream
);
605 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
606 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
611 strip_usage (FILE *stream
, int exit_status
)
613 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
614 fprintf (stream
, _(" Removes symbols and sections from files\n"));
615 fprintf (stream
, _(" The options are:\n"));
616 fprintf (stream
, _("\
617 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
618 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
619 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
620 -p --preserve-dates Copy modified/access timestamps to the output\n\
622 if (DEFAULT_AR_DETERMINISTIC
)
623 fprintf (stream
, _("\
624 -D --enable-deterministic-archives\n\
625 Produce deterministic output when stripping archives (default)\n\
626 -U --disable-deterministic-archives\n\
627 Disable -D behavior\n"));
629 fprintf (stream
, _("\
630 -D --enable-deterministic-archives\n\
631 Produce deterministic output when stripping archives\n\
632 -U --disable-deterministic-archives\n\
633 Disable -D behavior (default)\n"));
634 fprintf (stream
, _("\
635 -R --remove-section=<name> Also remove section <name> from the output\n\
636 -s --strip-all Remove all symbol and relocation information\n\
637 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
638 --strip-dwo Remove all DWO sections\n\
639 --strip-unneeded Remove all symbols not needed by relocations\n\
640 --only-keep-debug Strip everything but the debug information\n\
641 -N --strip-symbol=<name> Do not copy symbol <name>\n\
642 -K --keep-symbol=<name> Do not strip symbol <name>\n\
643 --keep-file-symbols Do not strip file symbol(s)\n\
644 -w --wildcard Permit wildcard in symbol comparison\n\
645 -x --discard-all Remove all non-global symbols\n\
646 -X --discard-locals Remove any compiler-generated symbols\n\
647 -v --verbose List all object files modified\n\
648 -V --version Display this program's version number\n\
649 -h --help Display this output\n\
650 --info List object formats & architectures supported\n\
651 -o <file> Place stripped output into <file>\n\
654 list_supported_targets (program_name
, stream
);
655 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
656 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
660 /* Parse section flags into a flagword, with a fatal error if the
661 string can't be parsed. */
664 parse_flags (const char *s
)
674 snext
= strchr (s
, ',');
684 #define PARSE_FLAG(fname,fval) \
685 else if (strncasecmp (fname, s, len) == 0) ret |= fval
686 PARSE_FLAG ("alloc", SEC_ALLOC
);
687 PARSE_FLAG ("load", SEC_LOAD
);
688 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
689 PARSE_FLAG ("readonly", SEC_READONLY
);
690 PARSE_FLAG ("debug", SEC_DEBUGGING
);
691 PARSE_FLAG ("code", SEC_CODE
);
692 PARSE_FLAG ("data", SEC_DATA
);
693 PARSE_FLAG ("rom", SEC_ROM
);
694 PARSE_FLAG ("share", SEC_COFF_SHARED
);
695 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
696 PARSE_FLAG ("merge", SEC_MERGE
);
697 PARSE_FLAG ("strings", SEC_STRINGS
);
703 copy
= (char *) xmalloc (len
+ 1);
704 strncpy (copy
, s
, len
);
706 non_fatal (_("unrecognized section flag `%s'"), copy
);
707 fatal (_("supported flags: %s"),
708 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
718 /* Find and optionally add an entry in the change_sections list.
720 We need to be careful in how we match section names because of the support
721 for wildcard characters. For example suppose that the user has invoked
724 --set-section-flags .debug_*=debug
725 --set-section-flags .debug_str=readonly,debug
726 --change-section-address .debug_*ranges=0x1000
728 With the idea that all debug sections will receive the DEBUG flag, the
729 .debug_str section will also receive the READONLY flag and the
730 .debug_ranges and .debug_aranges sections will have their address set to
731 0x1000. (This may not make much sense, but it is just an example).
733 When adding the section name patterns to the section list we need to make
734 sure that previous entries do not match with the new entry, unless the
735 match is exact. (In which case we assume that the user is overriding
736 the previous entry with the new context).
738 When matching real section names to the section list we make use of the
739 wildcard characters, but we must do so in context. Eg if we are setting
740 section addresses then we match for .debug_ranges but not for .debug_info.
742 Finally, if ADD is false and we do find a match, we mark the section list
745 static struct section_list
*
746 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
748 struct section_list
*p
;
750 /* assert ((context & ((1 << 7) - 1)) != 0); */
752 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
756 if (strcmp (p
->pattern
, name
) == 0)
758 /* Check for context conflicts. */
759 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
760 && (context
& SECTION_CONTEXT_COPY
))
761 || ((context
& SECTION_CONTEXT_REMOVE
)
762 && (p
->context
& SECTION_CONTEXT_COPY
)))
763 fatal (_("error: %s both copied and removed"), name
);
765 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
766 && (context
& SECTION_CONTEXT_ALTER_VMA
))
767 || ((context
& SECTION_CONTEXT_SET_VMA
)
768 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
769 fatal (_("error: %s both sets and alters VMA"), name
);
771 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
772 && (context
& SECTION_CONTEXT_ALTER_LMA
))
773 || ((context
& SECTION_CONTEXT_SET_LMA
)
774 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
775 fatal (_("error: %s both sets and alters LMA"), name
);
777 /* Extend the context. */
778 p
->context
|= context
;
782 /* If we are not adding a new name/pattern then
783 only check for a match if the context applies. */
784 else if ((p
->context
& context
)
785 /* We could check for the presence of wildchar characters
786 first and choose between calling strcmp and fnmatch,
787 but is that really worth it ? */
788 && fnmatch (p
->pattern
, name
, 0) == 0)
798 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
801 p
->context
= context
;
805 p
->next
= change_sections
;
811 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
814 eq_string (const void *s1
, const void *s2
)
816 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
820 create_symbol_htab (void)
822 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
826 create_symbol_htabs (void)
828 strip_specific_htab
= create_symbol_htab ();
829 strip_unneeded_htab
= create_symbol_htab ();
830 keep_specific_htab
= create_symbol_htab ();
831 localize_specific_htab
= create_symbol_htab ();
832 globalize_specific_htab
= create_symbol_htab ();
833 keepglobal_specific_htab
= create_symbol_htab ();
834 weaken_specific_htab
= create_symbol_htab ();
837 /* Add a symbol to strip_specific_list. */
840 add_specific_symbol (const char *name
, htab_t htab
)
842 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
845 /* Add symbols listed in `filename' to strip_specific_list. */
847 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
848 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
851 add_specific_symbols (const char *filename
, htab_t htab
)
857 unsigned int line_count
;
859 size
= get_file_size (filename
);
866 buffer
= (char *) xmalloc (size
+ 2);
867 f
= fopen (filename
, FOPEN_RT
);
869 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
871 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
872 fatal (_("%s: fread failed"), filename
);
875 buffer
[size
] = '\n';
876 buffer
[size
+ 1] = '\0';
880 for (line
= buffer
; * line
!= '\0'; line
++)
885 int finished
= FALSE
;
887 for (eol
= line
;; eol
++)
893 /* Cope with \n\r. */
901 /* Cope with \r\n. */
912 /* Line comment, Terminate the line here, in case a
913 name is present and then allow the rest of the
914 loop to find the real end of the line. */
926 /* A name may now exist somewhere between 'line' and 'eol'.
927 Strip off leading whitespace and trailing whitespace,
928 then add it to the list. */
929 for (name
= line
; IS_WHITESPACE (* name
); name
++)
931 for (name_end
= name
;
932 (! IS_WHITESPACE (* name_end
))
933 && (! IS_LINE_TERMINATOR (* name_end
));
937 if (! IS_LINE_TERMINATOR (* name_end
))
941 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
944 if (! IS_LINE_TERMINATOR (* extra
))
945 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
946 filename
, line_count
);
952 add_specific_symbol (name
, htab
);
954 /* Advance line pointer to end of line. The 'eol ++' in the for
955 loop above will then advance us to the start of the next line. */
961 /* See whether a symbol should be stripped or kept
962 based on strip_specific_list and keep_symbols. */
965 is_specified_symbol_predicate (void **slot
, void *data
)
967 struct is_specified_symbol_predicate_data
*d
=
968 (struct is_specified_symbol_predicate_data
*) data
;
969 const char *slot_name
= (char *) *slot
;
971 if (*slot_name
!= '!')
973 if (! fnmatch (slot_name
, d
->name
, 0))
976 /* Stop traversal. */
982 if (fnmatch (slot_name
+ 1, d
->name
, 0))
985 /* Stop traversal. */
990 /* Continue traversal. */
995 is_specified_symbol (const char *name
, htab_t htab
)
999 struct is_specified_symbol_predicate_data data
;
1004 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1009 return htab_find (htab
, name
) != NULL
;
1012 /* Return a pointer to the symbol used as a signature for GROUP. */
1015 group_signature (asection
*group
)
1017 bfd
*abfd
= group
->owner
;
1018 Elf_Internal_Shdr
*ghdr
;
1020 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1023 ghdr
= &elf_section_data (group
)->this_hdr
;
1024 if (ghdr
->sh_link
< elf_numsections (abfd
))
1026 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1027 Elf_Internal_Shdr
*symhdr
= elf_elfsections (abfd
) [ghdr
->sh_link
];
1029 if (symhdr
->sh_type
== SHT_SYMTAB
1030 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1031 return isympp
[ghdr
->sh_info
- 1];
1036 /* Return TRUE if the section is a DWO section. */
1039 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1041 const char *name
= bfd_get_section_name (abfd
, sec
);
1042 int len
= strlen (name
);
1044 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1047 /* See if a non-group section is being removed. */
1050 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1052 if (sections_removed
|| sections_copied
)
1054 struct section_list
*p
;
1055 struct section_list
*q
;
1057 p
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1058 SECTION_CONTEXT_REMOVE
);
1059 q
= find_section_list (bfd_get_section_name (abfd
, sec
), FALSE
,
1060 SECTION_CONTEXT_COPY
);
1063 fatal (_("error: section %s matches both remove and copy options"),
1064 bfd_get_section_name (abfd
, sec
));
1068 if (sections_copied
&& q
== NULL
)
1072 if ((bfd_get_section_flags (abfd
, sec
) & SEC_DEBUGGING
) != 0)
1074 if (strip_symbols
== STRIP_DEBUG
1075 || strip_symbols
== STRIP_UNNEEDED
1076 || strip_symbols
== STRIP_ALL
1077 || discard_locals
== LOCALS_ALL
1078 || convert_debugging
)
1080 /* By default we don't want to strip .reloc section.
1081 This section has for pe-coff special meaning. See
1082 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1083 if (strcmp (bfd_get_section_name (abfd
, sec
), ".reloc") != 0)
1087 if (strip_symbols
== STRIP_DWO
)
1088 return is_dwo_section (abfd
, sec
);
1090 if (strip_symbols
== STRIP_NONDEBUG
)
1094 if (strip_symbols
== STRIP_NONDWO
)
1095 return !is_dwo_section (abfd
, sec
);
1100 /* See if a section is being removed. */
1103 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1105 if (is_strip_section_1 (abfd
, sec
))
1108 if ((bfd_get_section_flags (abfd
, sec
) & SEC_GROUP
) != 0)
1112 asection
*elt
, *first
;
1115 If we are going to strip the group signature symbol, then
1116 strip the group section too. */
1117 gsym
= group_signature (sec
);
1122 if ((strip_symbols
== STRIP_ALL
1123 && !is_specified_symbol (gname
, keep_specific_htab
))
1124 || is_specified_symbol (gname
, strip_specific_htab
))
1127 /* Remove the group section if all members are removed. */
1128 first
= elt
= elf_next_in_group (sec
);
1131 if (!is_strip_section_1 (abfd
, elt
))
1133 elt
= elf_next_in_group (elt
);
1145 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1147 /* Always keep ELF note sections. */
1148 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
1149 return (elf_section_type (isection
) == SHT_NOTE
);
1151 /* Always keep the .buildid section for PE/COFF.
1153 Strictly, this should be written "always keep the section storing the debug
1154 directory", but that may be the .text section for objects produced by some
1155 tools, which it is not sensible to keep. */
1156 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
)
1157 return (strcmp (bfd_get_section_name (ibfd
, isection
), ".buildid") == 0);
1162 /* Return true if SYM is a hidden symbol. */
1165 is_hidden_symbol (asymbol
*sym
)
1167 elf_symbol_type
*elf_sym
;
1169 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1170 if (elf_sym
!= NULL
)
1171 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1180 /* Choose which symbol entries to copy; put the result in OSYMS.
1181 We don't copy in place, because that confuses the relocs.
1182 Return the number of symbols to print. */
1185 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1186 asymbol
**isyms
, long symcount
)
1188 asymbol
**from
= isyms
, **to
= osyms
;
1189 long src_count
= 0, dst_count
= 0;
1190 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1192 for (; src_count
< symcount
; src_count
++)
1194 asymbol
*sym
= from
[src_count
];
1195 flagword flags
= sym
->flags
;
1196 char *name
= (char *) bfd_asymbol_name (sym
);
1198 bfd_boolean used_in_reloc
= FALSE
;
1199 bfd_boolean undefined
;
1200 bfd_boolean rem_leading_char
;
1201 bfd_boolean add_leading_char
;
1203 undefined
= bfd_is_und_section (bfd_get_section (sym
));
1205 if (redefine_sym_list
)
1207 char *old_name
, *new_name
;
1209 old_name
= (char *) bfd_asymbol_name (sym
);
1210 new_name
= (char *) lookup_sym_redefinition (old_name
);
1211 bfd_asymbol_name (sym
) = new_name
;
1215 /* Check if we will remove the current leading character. */
1217 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1218 && (change_leading_char
1219 || (remove_leading_char
1220 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1222 || bfd_is_com_section (bfd_get_section (sym
)))));
1224 /* Check if we will add a new leading character. */
1227 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1228 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1229 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1231 /* Short circuit for change_leading_char if we can do it in-place. */
1232 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1234 name
[0] = bfd_get_symbol_leading_char (obfd
);
1235 bfd_asymbol_name (sym
) = name
;
1236 rem_leading_char
= FALSE
;
1237 add_leading_char
= FALSE
;
1240 /* Remove leading char. */
1241 if (rem_leading_char
)
1242 bfd_asymbol_name (sym
) = ++name
;
1244 /* Add new leading char and/or prefix. */
1245 if (add_leading_char
|| prefix_symbols_string
)
1249 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1250 + strlen (name
) + 1);
1251 if (add_leading_char
)
1252 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1254 if (prefix_symbols_string
)
1256 strcpy (ptr
, prefix_symbols_string
);
1257 ptr
+= strlen (prefix_symbols_string
);
1261 bfd_asymbol_name (sym
) = n
;
1265 if (strip_symbols
== STRIP_ALL
)
1267 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1268 || ((flags
& BSF_SECTION_SYM
) != 0
1269 && ((*bfd_get_section (sym
)->symbol_ptr_ptr
)->flags
1273 used_in_reloc
= TRUE
;
1275 else if (relocatable
/* Relocatable file. */
1276 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1277 || bfd_is_com_section (bfd_get_section (sym
))))
1279 else if (bfd_decode_symclass (sym
) == 'I')
1280 /* Global symbols in $idata sections need to be retained
1281 even if relocatable is FALSE. External users of the
1282 library containing the $idata section may reference these
1285 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1286 || (flags
& BSF_WEAK
) != 0
1288 || bfd_is_com_section (bfd_get_section (sym
)))
1289 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1290 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1291 keep
= (strip_symbols
!= STRIP_DEBUG
1292 && strip_symbols
!= STRIP_UNNEEDED
1293 && ! convert_debugging
);
1294 else if (bfd_coff_get_comdat_section (abfd
, bfd_get_section (sym
)))
1295 /* COMDAT sections store special information in local
1296 symbols, so we cannot risk stripping any of them. */
1298 else /* Local symbol. */
1299 keep
= (strip_symbols
!= STRIP_UNNEEDED
1300 && (discard_locals
!= LOCALS_ALL
1301 && (discard_locals
!= LOCALS_START_L
1302 || ! bfd_is_local_label (abfd
, sym
))));
1304 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1306 /* There are multiple ways to set 'keep' above, but if it
1307 was the relocatable symbol case, then that's an error. */
1310 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1318 && !(flags
& BSF_KEEP
)
1319 && is_specified_symbol (name
, strip_unneeded_htab
))
1323 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1324 || is_specified_symbol (name
, keep_specific_htab
)))
1327 if (keep
&& is_strip_section (abfd
, bfd_get_section (sym
)))
1332 if ((flags
& BSF_GLOBAL
) != 0
1333 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1335 sym
->flags
&= ~ BSF_GLOBAL
;
1336 sym
->flags
|= BSF_WEAK
;
1340 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1341 && (is_specified_symbol (name
, localize_specific_htab
)
1342 || (htab_elements (keepglobal_specific_htab
) != 0
1343 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1344 || (localize_hidden
&& is_hidden_symbol (sym
))))
1346 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1347 sym
->flags
|= BSF_LOCAL
;
1351 && (flags
& BSF_LOCAL
)
1352 && is_specified_symbol (name
, globalize_specific_htab
))
1354 sym
->flags
&= ~ BSF_LOCAL
;
1355 sym
->flags
|= BSF_GLOBAL
;
1358 to
[dst_count
++] = sym
;
1362 to
[dst_count
] = NULL
;
1367 /* Find the redefined name of symbol SOURCE. */
1370 lookup_sym_redefinition (const char *source
)
1372 struct redefine_node
*list
;
1374 for (list
= redefine_sym_list
; list
!= NULL
; list
= list
->next
)
1375 if (strcmp (source
, list
->source
) == 0)
1376 return list
->target
;
1381 /* Add a node to a symbol redefine list. */
1384 redefine_list_append (const char *cause
, const char *source
, const char *target
)
1386 struct redefine_node
**p
;
1387 struct redefine_node
*list
;
1388 struct redefine_node
*new_node
;
1390 for (p
= &redefine_sym_list
; (list
= *p
) != NULL
; p
= &list
->next
)
1392 if (strcmp (source
, list
->source
) == 0)
1393 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1396 if (strcmp (target
, list
->target
) == 0)
1397 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1401 new_node
= (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1403 new_node
->source
= strdup (source
);
1404 new_node
->target
= strdup (target
);
1405 new_node
->next
= NULL
;
1410 /* Handle the --redefine-syms option. Read lines containing "old new"
1411 from the file, and add them to the symbol redefine list. */
1414 add_redefine_syms_file (const char *filename
)
1423 file
= fopen (filename
, "r");
1425 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1426 filename
, strerror (errno
));
1429 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1437 /* Collect the input symbol name. */
1438 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1446 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1454 /* Eat white space between the symbol names. */
1455 while (IS_WHITESPACE (c
))
1457 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1462 /* Collect the output symbol name. */
1464 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1472 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1480 /* Eat white space at end of line. */
1481 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1486 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1487 || c
== '\n' || c
== EOF
)
1490 /* Append the redefinition to the list. */
1492 redefine_list_append (filename
, &buf
[0], &buf
[outsym_off
]);
1503 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1505 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1506 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1509 /* Eat the rest of the line and finish it. */
1510 while (c
!= '\n' && c
!= EOF
)
1516 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1521 /* Copy unkown object file IBFD onto OBFD.
1522 Returns TRUE upon success, FALSE otherwise. */
1525 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1533 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1535 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1542 non_fatal (_("stat returns negative size for `%s'"),
1543 bfd_get_archive_filename (ibfd
));
1547 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1549 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1554 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1555 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1557 cbuf
= (char *) xmalloc (BUFSIZE
);
1559 while (ncopied
< size
)
1561 tocopy
= size
- ncopied
;
1562 if (tocopy
> BUFSIZE
)
1565 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1566 != (bfd_size_type
) tocopy
)
1568 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1573 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1574 != (bfd_size_type
) tocopy
)
1576 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1584 /* We should at least to be able to read it back when copying an
1585 unknown object in an archive. */
1586 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1591 /* Copy object file IBFD onto OBFD.
1592 Returns TRUE upon success, FALSE otherwise. */
1595 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
1599 asection
**osections
= NULL
;
1600 asection
*gnu_debuglink_section
= NULL
;
1601 bfd_size_type
*gaps
= NULL
;
1602 bfd_size_type max_gap
= 0;
1605 enum bfd_architecture iarch
;
1608 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
1609 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
1610 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
1611 fatal (_("Unable to change endianness of input file(s)"));
1613 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1615 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1619 if (ibfd
->sections
== NULL
)
1621 non_fatal (_("error: the input file '%s' has no sections"),
1622 bfd_get_archive_filename (ibfd
));
1627 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1628 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
1629 bfd_get_filename (obfd
), bfd_get_target (obfd
));
1638 start
= bfd_get_start_address (ibfd
);
1639 start
+= change_start
;
1642 /* Neither the start address nor the flags
1643 need to be set for a core file. */
1644 if (bfd_get_format (obfd
) != bfd_core
)
1648 flags
= bfd_get_file_flags (ibfd
);
1649 flags
|= bfd_flags_to_set
;
1650 flags
&= ~bfd_flags_to_clear
;
1651 flags
&= bfd_applicable_file_flags (obfd
);
1653 if (strip_symbols
== STRIP_ALL
)
1654 flags
&= ~HAS_RELOC
;
1656 if (!bfd_set_start_address (obfd
, start
)
1657 || !bfd_set_file_flags (obfd
, flags
))
1659 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1664 /* Copy architecture of input file to output file. */
1665 iarch
= bfd_get_arch (ibfd
);
1666 imach
= bfd_get_mach (ibfd
);
1669 if (bfd_get_arch_info (ibfd
) == NULL
1670 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
1672 iarch
= input_arch
->arch
;
1673 imach
= input_arch
->mach
;
1676 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1677 bfd_get_archive_filename (ibfd
));
1679 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
1680 && (ibfd
->target_defaulted
1681 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
1683 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
1684 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1685 bfd_get_archive_filename (ibfd
));
1687 non_fatal (_("Output file cannot represent architecture `%s'"),
1688 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
1689 bfd_get_mach (ibfd
)));
1693 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
1695 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1699 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
1700 && bfd_pei_p (obfd
))
1702 /* Set up PE parameters. */
1703 pe_data_type
*pe
= pe_data (obfd
);
1705 /* Copy PE parameters before changing them. */
1706 if (ibfd
->xvec
->flavour
== bfd_target_coff_flavour
1707 && bfd_pei_p (ibfd
))
1708 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
1710 if (pe_file_alignment
!= (bfd_vma
) -1)
1711 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
1713 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
1715 if (pe_heap_commit
!= (bfd_vma
) -1)
1716 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
1718 if (pe_heap_reserve
!= (bfd_vma
) -1)
1719 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
1721 if (pe_image_base
!= (bfd_vma
) -1)
1722 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
1724 if (pe_section_alignment
!= (bfd_vma
) -1)
1725 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
1727 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
1729 if (pe_stack_commit
!= (bfd_vma
) -1)
1730 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
1732 if (pe_stack_reserve
!= (bfd_vma
) -1)
1733 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
1735 if (pe_subsystem
!= -1)
1736 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
1738 if (pe_major_subsystem_version
!= -1)
1739 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
1741 if (pe_minor_subsystem_version
!= -1)
1742 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
1744 if (pe_file_alignment
> pe_section_alignment
)
1746 char file_alignment
[20], section_alignment
[20];
1748 sprintf_vma (file_alignment
, pe_file_alignment
);
1749 sprintf_vma (section_alignment
, pe_section_alignment
);
1750 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1752 file_alignment
, section_alignment
);
1759 if (osympp
!= isympp
)
1765 symsize
= bfd_get_symtab_upper_bound (ibfd
);
1768 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1772 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
1773 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
1776 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1779 /* PR 17512: file: d6323821
1780 If the symbol table could not be loaded do not pretend that we have
1781 any symbols. This trips us up later on when we load the relocs. */
1785 osympp
= isympp
= NULL
;
1788 /* BFD mandates that all output sections be created and sizes set before
1789 any output is done. Thus, we traverse all sections multiple times. */
1790 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
1792 if (!extract_symbol
)
1793 setup_bfd_headers (ibfd
, obfd
);
1795 if (add_sections
!= NULL
)
1797 struct section_add
*padd
;
1798 struct section_list
*pset
;
1800 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
1804 pset
= find_section_list (padd
->name
, FALSE
,
1805 SECTION_CONTEXT_SET_FLAGS
);
1807 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
1809 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
1811 /* bfd_make_section_with_flags() does not return very helpful
1812 error codes, so check for the most likely user error first. */
1813 if (bfd_get_section_by_name (obfd
, padd
->name
))
1815 bfd_nonfatal_message (NULL
, obfd
, NULL
,
1816 _("can't add section '%s'"), padd
->name
);
1821 /* We use LINKER_CREATED here so that the backend hooks
1822 will create any special section type information,
1823 instead of presuming we know what we're doing merely
1824 because we set the flags. */
1825 padd
->section
= bfd_make_section_with_flags
1826 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
1827 if (padd
->section
== NULL
)
1829 bfd_nonfatal_message (NULL
, obfd
, NULL
,
1830 _("can't create section `%s'"),
1836 if (! bfd_set_section_size (obfd
, padd
->section
, padd
->size
))
1838 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1842 pset
= find_section_list (padd
->name
, FALSE
,
1843 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
1845 && ! bfd_set_section_vma (obfd
, padd
->section
, pset
->vma_val
))
1847 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1851 pset
= find_section_list (padd
->name
, FALSE
,
1852 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
1855 padd
->section
->lma
= pset
->lma_val
;
1857 if (! bfd_set_section_alignment
1858 (obfd
, padd
->section
,
1859 bfd_section_alignment (obfd
, padd
->section
)))
1861 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
1868 if (dump_sections
!= NULL
)
1870 struct section_add
* pdump
;
1872 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
1876 sec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
1879 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
1880 _("can't dump section '%s' - it does not exist"),
1885 if ((bfd_get_section_flags (ibfd
, sec
) & SEC_HAS_CONTENTS
) == 0)
1887 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1888 _("can't dump section - it has no contents"));
1892 bfd_size_type size
= bfd_get_section_size (sec
);
1895 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1896 _("can't dump section - it is empty"));
1901 f
= fopen (pdump
->filename
, FOPEN_WB
);
1904 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
1905 _("could not open section dump file"));
1909 bfd_byte
* contents
= xmalloc (size
);
1910 if (bfd_get_section_contents (ibfd
, sec
, contents
, 0, size
))
1912 if (fwrite (contents
, 1, size
, f
) != size
)
1913 fatal (_("error writing section contents to %s (error: %s)"),
1918 bfd_nonfatal_message (NULL
, ibfd
, sec
,
1919 _("could not retrieve section contents"));
1926 if (gnu_debuglink_filename
!= NULL
)
1928 /* PR 15125: Give a helpful warning message if
1929 the debuglink section already exists, and
1930 allow the rest of the copy to complete. */
1931 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
1933 non_fatal (_("%s: debuglink section already exists"),
1934 bfd_get_filename (obfd
));
1935 gnu_debuglink_filename
= NULL
;
1939 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
1940 (obfd
, gnu_debuglink_filename
);
1942 if (gnu_debuglink_section
== NULL
)
1944 bfd_nonfatal_message (NULL
, obfd
, NULL
,
1945 _("cannot create debug link section `%s'"),
1946 gnu_debuglink_filename
);
1950 /* Special processing for PE format files. We
1951 have no way to distinguish PE from COFF here. */
1952 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
1954 bfd_vma debuglink_vma
;
1955 asection
* highest_section
;
1958 /* The PE spec requires that all sections be adjacent and sorted
1959 in ascending order of VMA. It also specifies that debug
1960 sections should be last. This is despite the fact that debug
1961 sections are not loaded into memory and so in theory have no
1964 This means that the debuglink section must be given a non-zero
1965 VMA which makes it contiguous with other debug sections. So
1966 walk the current section list, find the section with the
1967 highest VMA and start the debuglink section after that one. */
1968 for (sec
= obfd
->sections
, highest_section
= NULL
;
1972 && (highest_section
== NULL
1973 || sec
->vma
> highest_section
->vma
))
1974 highest_section
= sec
;
1976 if (highest_section
)
1977 debuglink_vma
= BFD_ALIGN (highest_section
->vma
1978 + highest_section
->size
,
1979 /* FIXME: We ought to be using
1980 COFF_PAGE_SIZE here or maybe
1981 bfd_get_section_alignment() (if it
1982 was set) but since this is for PE
1983 and we know the required alignment
1984 it is easier just to hard code it. */
1987 /* Umm, not sure what to do in this case. */
1988 debuglink_vma
= 0x1000;
1990 bfd_set_section_vma (obfd
, gnu_debuglink_section
, debuglink_vma
);
1995 if (bfd_count_sections (obfd
) != 0
1996 && (gap_fill_set
|| pad_to_set
))
2001 /* We must fill in gaps between the sections and/or we must pad
2002 the last section to a specified address. We do this by
2003 grabbing a list of the sections, sorting them by VMA, and
2004 increasing the section sizes as required to fill the gaps.
2005 We write out the gap contents below. */
2007 c
= bfd_count_sections (obfd
);
2008 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
2010 bfd_map_over_sections (obfd
, get_sections
, &set
);
2012 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
2014 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
2015 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
2019 for (i
= 0; i
< c
- 1; i
++)
2023 bfd_vma gap_start
, gap_stop
;
2025 flags
= bfd_get_section_flags (obfd
, osections
[i
]);
2026 if ((flags
& SEC_HAS_CONTENTS
) == 0
2027 || (flags
& SEC_LOAD
) == 0)
2030 size
= bfd_section_size (obfd
, osections
[i
]);
2031 gap_start
= bfd_section_lma (obfd
, osections
[i
]) + size
;
2032 gap_stop
= bfd_section_lma (obfd
, osections
[i
+ 1]);
2033 if (gap_start
< gap_stop
)
2035 if (! bfd_set_section_size (obfd
, osections
[i
],
2036 size
+ (gap_stop
- gap_start
)))
2038 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
2039 _("Can't fill gap after section"));
2043 gaps
[i
] = gap_stop
- gap_start
;
2044 if (max_gap
< gap_stop
- gap_start
)
2045 max_gap
= gap_stop
- gap_start
;
2055 lma
= bfd_section_lma (obfd
, osections
[c
- 1]);
2056 size
= bfd_section_size (obfd
, osections
[c
- 1]);
2057 if (lma
+ size
< pad_to
)
2059 if (! bfd_set_section_size (obfd
, osections
[c
- 1],
2062 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
2063 _("can't add padding"));
2068 gaps
[c
- 1] = pad_to
- (lma
+ size
);
2069 if (max_gap
< pad_to
- (lma
+ size
))
2070 max_gap
= pad_to
- (lma
+ size
);
2076 /* Symbol filtering must happen after the output sections
2077 have been created, but before their contents are set. */
2079 if (convert_debugging
)
2080 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
2082 if (strip_symbols
== STRIP_DEBUG
2083 || strip_symbols
== STRIP_ALL
2084 || strip_symbols
== STRIP_UNNEEDED
2085 || strip_symbols
== STRIP_NONDEBUG
2086 || strip_symbols
== STRIP_DWO
2087 || strip_symbols
== STRIP_NONDWO
2088 || discard_locals
!= LOCALS_UNDEF
2090 || htab_elements (strip_specific_htab
) != 0
2091 || htab_elements (keep_specific_htab
) != 0
2092 || htab_elements (localize_specific_htab
) != 0
2093 || htab_elements (globalize_specific_htab
) != 0
2094 || htab_elements (keepglobal_specific_htab
) != 0
2095 || htab_elements (weaken_specific_htab
) != 0
2096 || prefix_symbols_string
2099 || convert_debugging
2100 || change_leading_char
2101 || remove_leading_char
2102 || redefine_sym_list
2105 /* Mark symbols used in output relocations so that they
2106 are kept, even if they are local labels or static symbols.
2108 Note we iterate over the input sections examining their
2109 relocations since the relocations for the output sections
2110 haven't been set yet. mark_symbols_used_in_relocations will
2111 ignore input sections which have no corresponding output
2113 if (strip_symbols
!= STRIP_ALL
)
2114 bfd_map_over_sections (ibfd
,
2115 mark_symbols_used_in_relocations
,
2117 osympp
= (asymbol
**) xmalloc ((symcount
+ 1) * sizeof (asymbol
*));
2118 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
2121 if (convert_debugging
&& dhandle
!= NULL
)
2123 if (! write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
))
2130 bfd_set_symtab (obfd
, osympp
, symcount
);
2132 /* This has to happen before section positions are set. */
2133 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
2135 /* This has to happen after the symbol table has been set. */
2136 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
2138 if (add_sections
!= NULL
)
2140 struct section_add
*padd
;
2142 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2144 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
2147 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2153 if (gnu_debuglink_filename
!= NULL
)
2155 if (! bfd_fill_in_gnu_debuglink_section
2156 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
2158 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2159 _("cannot fill debug link section `%s'"),
2160 gnu_debuglink_filename
);
2165 if (gap_fill_set
|| pad_to_set
)
2170 /* Fill in the gaps. */
2173 buf
= (bfd_byte
*) xmalloc (max_gap
);
2174 memset (buf
, gap_fill
, max_gap
);
2176 c
= bfd_count_sections (obfd
);
2177 for (i
= 0; i
< c
; i
++)
2185 off
= bfd_section_size (obfd
, osections
[i
]) - left
;
2196 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
2199 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
2210 /* Do not copy backend data if --extract-symbol is passed; anything
2211 that needs to look at the section contents will fail. */
2215 /* Allow the BFD backend to copy any private data it understands
2216 from the input BFD to the output BFD. This is done last to
2217 permit the routine to look at the filtered symbol table, which is
2218 important for the ECOFF code at least. */
2219 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
2221 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2222 _("error copying private BFD data"));
2226 /* Switch to the alternate machine code. We have to do this at the
2227 very end, because we only initialize the header when we create
2228 the first section. */
2229 if (use_alt_mach_code
!= 0)
2231 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
2233 non_fatal (_("this target does not support %lu alternative machine codes"),
2235 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2237 non_fatal (_("treating that number as an absolute e_machine value instead"));
2238 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
2241 non_fatal (_("ignoring the alternative value"));
2248 /* Read each archive element in turn from IBFD, copy the
2249 contents to temp file, and keep the temp file handle.
2250 If 'force_output_target' is TRUE then make sure that
2251 all elements in the new archive are of the type
2255 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
2256 bfd_boolean force_output_target
,
2257 const bfd_arch_info_type
*input_arch
)
2261 struct name_list
*next
;
2265 bfd
**ptr
= &obfd
->archive_head
;
2268 const char *filename
;
2270 /* Make a temp directory to hold the contents. */
2271 dir
= make_tempdir (bfd_get_filename (obfd
));
2273 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2276 if (strip_symbols
== STRIP_ALL
)
2277 obfd
->has_armap
= FALSE
;
2279 obfd
->has_armap
= ibfd
->has_armap
;
2280 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
2283 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
2287 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
2289 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2292 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2296 while (!status
&& this_element
!= NULL
)
2302 int stat_status
= 0;
2303 bfd_boolean del
= TRUE
;
2304 bfd_boolean ok_object
;
2306 /* PR binutils/17533: Do not allow directory traversal
2307 outside of the current directory tree by archive members. */
2308 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
2310 non_fatal (_("illegal pathname found in archive member: %s"),
2311 bfd_get_filename (this_element
));
2313 goto cleanup_and_exit
;
2316 /* Create an output file for this member. */
2317 output_name
= concat (dir
, "/",
2318 bfd_get_filename (this_element
), (char *) 0);
2320 /* If the file already exists, make another temp dir. */
2321 if (stat (output_name
, &buf
) >= 0)
2323 output_name
= make_tempdir (output_name
);
2324 if (output_name
== NULL
)
2326 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2329 goto cleanup_and_exit
;
2332 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2333 l
->name
= output_name
;
2337 output_name
= concat (output_name
, "/",
2338 bfd_get_filename (this_element
), (char *) 0);
2343 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
2345 if (stat_status
!= 0)
2346 non_fatal (_("internal stat error on %s"),
2347 bfd_get_filename (this_element
));
2350 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
2351 l
->name
= output_name
;
2356 ok_object
= bfd_check_format (this_element
, bfd_object
);
2358 bfd_nonfatal_message (NULL
, this_element
, NULL
,
2359 _("Unable to recognise the format of file"));
2361 /* PR binutils/3110: Cope with archives
2362 containing multiple target types. */
2363 if (force_output_target
|| !ok_object
)
2364 output_bfd
= bfd_openw (output_name
, output_target
);
2366 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
2368 if (output_bfd
== NULL
)
2370 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2372 goto cleanup_and_exit
;
2377 del
= !copy_object (this_element
, output_bfd
, input_arch
);
2379 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
2380 /* Try again as an unknown object file. */
2382 else if (!bfd_close (output_bfd
))
2384 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2385 /* Error in new object file. Don't change archive. */
2392 del
= !copy_unknown_object (this_element
, output_bfd
);
2393 if (!bfd_close_all_done (output_bfd
))
2395 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
2396 /* Error in new object file. Don't change archive. */
2403 unlink (output_name
);
2408 if (preserve_dates
&& stat_status
== 0)
2409 set_times (output_name
, &buf
);
2411 /* Open the newly output file and attach to our list. */
2412 output_bfd
= bfd_openr (output_name
, output_target
);
2414 l
->obfd
= output_bfd
;
2417 ptr
= &output_bfd
->archive_next
;
2419 last_element
= this_element
;
2421 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
2423 bfd_close (last_element
);
2428 filename
= bfd_get_filename (obfd
);
2429 if (!bfd_close (obfd
))
2432 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2435 filename
= bfd_get_filename (ibfd
);
2436 if (!bfd_close (ibfd
))
2439 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
2443 /* Delete all the files that we opened. */
2444 for (l
= list
; l
!= NULL
; l
= l
->next
)
2446 if (l
->obfd
== NULL
)
2450 bfd_close (l
->obfd
);
2458 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2460 /* This is only relevant to Coff targets. */
2461 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2464 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2465 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2466 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2470 /* The top-level control. */
2473 copy_file (const char *input_filename
, const char *output_filename
,
2474 const char *input_target
, const char *output_target
,
2475 const bfd_arch_info_type
*input_arch
)
2478 char **obj_matching
;
2479 char **core_matching
;
2480 off_t size
= get_file_size (input_filename
);
2485 non_fatal (_("error: the input file '%s' is empty"),
2491 /* To allow us to do "strip *" without dying on the first
2492 non-object file, failures are nonfatal. */
2493 ibfd
= bfd_openr (input_filename
, input_target
);
2496 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2501 switch (do_debug_sections
)
2504 ibfd
->flags
|= BFD_COMPRESS
;
2507 ibfd
->flags
|= BFD_DECOMPRESS
;
2513 if (bfd_check_format (ibfd
, bfd_archive
))
2515 bfd_boolean force_output_target
;
2518 /* bfd_get_target does not return the correct value until
2519 bfd_check_format succeeds. */
2520 if (output_target
== NULL
)
2522 output_target
= bfd_get_target (ibfd
);
2523 force_output_target
= FALSE
;
2526 force_output_target
= TRUE
;
2528 obfd
= bfd_openw (output_filename
, output_target
);
2531 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2535 /* This is a no-op on non-Coff targets. */
2536 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2538 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
2540 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
2545 /* bfd_get_target does not return the correct value until
2546 bfd_check_format succeeds. */
2547 if (output_target
== NULL
)
2548 output_target
= bfd_get_target (ibfd
);
2550 obfd
= bfd_openw (output_filename
, output_target
);
2553 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2557 /* This is a no-op on non-Coff targets. */
2558 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2560 if (! copy_object (ibfd
, obfd
, input_arch
))
2563 /* PR 17512: file: 0f15796a.
2564 If the file could not be copied it may not be in a writeable
2565 state. So use bfd_close_all_done to avoid the possibility of
2566 writing uninitialised data into the file. */
2567 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
2570 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
2574 if (!bfd_close (ibfd
))
2577 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2583 bfd_error_type obj_error
= bfd_get_error ();
2584 bfd_error_type core_error
;
2586 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
2588 /* This probably can't happen.. */
2589 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2590 free (obj_matching
);
2594 core_error
= bfd_get_error ();
2595 /* Report the object error in preference to the core error. */
2596 if (obj_error
!= core_error
)
2597 bfd_set_error (obj_error
);
2599 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
2601 if (obj_error
== bfd_error_file_ambiguously_recognized
)
2603 list_matching_formats (obj_matching
);
2604 free (obj_matching
);
2606 if (core_error
== bfd_error_file_ambiguously_recognized
)
2608 list_matching_formats (core_matching
);
2609 free (core_matching
);
2616 /* Add a name to the section renaming list. */
2619 add_section_rename (const char * old_name
, const char * new_name
,
2622 section_rename
* srename
;
2624 /* Check for conflicts first. */
2625 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2626 if (strcmp (srename
->old_name
, old_name
) == 0)
2628 /* Silently ignore duplicate definitions. */
2629 if (strcmp (srename
->new_name
, new_name
) == 0
2630 && srename
->flags
== flags
)
2633 fatal (_("Multiple renames of section %s"), old_name
);
2636 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
2638 srename
->old_name
= old_name
;
2639 srename
->new_name
= new_name
;
2640 srename
->flags
= flags
;
2641 srename
->next
= section_rename_list
;
2643 section_rename_list
= srename
;
2646 /* Check the section rename list for a new name of the input section
2647 ISECTION. Return the new name if one is found.
2648 Also set RETURNED_FLAGS to the flags to be used for this section. */
2651 find_section_rename (bfd
* ibfd ATTRIBUTE_UNUSED
, sec_ptr isection
,
2652 flagword
* returned_flags
)
2654 const char * old_name
= bfd_section_name (ibfd
, isection
);
2655 section_rename
* srename
;
2657 /* Default to using the flags of the input section. */
2658 * returned_flags
= bfd_get_section_flags (ibfd
, isection
);
2660 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
2661 if (strcmp (srename
->old_name
, old_name
) == 0)
2663 if (srename
->flags
!= (flagword
) -1)
2664 * returned_flags
= srename
->flags
;
2666 return srename
->new_name
;
2672 /* Once each of the sections is copied, we may still need to do some
2673 finalization work for private section headers. Do that here. */
2676 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
2678 /* Allow the BFD backend to copy any private data it understands
2679 from the input section to the output section. */
2680 if (! bfd_copy_private_header_data (ibfd
, obfd
))
2683 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2684 _("error in private header data"));
2688 /* All went well. */
2692 /* Create a section in OBFD with the same
2693 name and attributes as ISECTION in IBFD. */
2696 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2698 bfd
*obfd
= (bfd
*) obfdarg
;
2699 struct section_list
*p
;
2707 char *prefix
= NULL
;
2708 bfd_boolean make_nobits
;
2710 if (is_strip_section (ibfd
, isection
))
2713 /* Get the, possibly new, name of the output section. */
2714 name
= find_section_rename (ibfd
, isection
, & flags
);
2716 /* Prefix sections. */
2717 if ((prefix_alloc_sections_string
)
2718 && (bfd_get_section_flags (ibfd
, isection
) & SEC_ALLOC
))
2719 prefix
= prefix_alloc_sections_string
;
2720 else if (prefix_sections_string
)
2721 prefix
= prefix_sections_string
;
2727 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
2733 make_nobits
= FALSE
;
2735 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2736 SECTION_CONTEXT_SET_FLAGS
);
2738 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
2739 else if (strip_symbols
== STRIP_NONDEBUG
2740 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
2741 && !is_nondebug_keep_contents_section (ibfd
, isection
))
2743 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
2744 if (obfd
->xvec
->flavour
== bfd_target_elf_flavour
)
2748 /* Twiddle the input section flags so that it seems to
2749 elf.c:copy_private_bfd_data that section flags have not
2750 changed between input and output sections. This hack
2751 prevents wholesale rewriting of the program headers. */
2752 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
2756 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
2758 if (osection
== NULL
)
2760 err
= _("failed to create output section");
2765 elf_section_type (osection
) = SHT_NOBITS
;
2767 size
= bfd_section_size (ibfd
, isection
);
2769 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
2770 else if (extract_symbol
)
2772 if (! bfd_set_section_size (obfd
, osection
, size
))
2774 err
= _("failed to set size");
2778 vma
= bfd_section_vma (ibfd
, isection
);
2779 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2780 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
2783 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
2789 vma
+= change_section_address
;
2791 if (! bfd_set_section_vma (obfd
, osection
, vma
))
2793 err
= _("failed to set vma");
2797 lma
= isection
->lma
;
2798 p
= find_section_list (bfd_section_name (ibfd
, isection
), FALSE
,
2799 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
2802 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
2808 lma
+= change_section_address
;
2810 osection
->lma
= lma
;
2812 /* FIXME: This is probably not enough. If we change the LMA we
2813 may have to recompute the header for the file as well. */
2814 if (!bfd_set_section_alignment (obfd
,
2816 bfd_section_alignment (ibfd
, isection
)))
2818 err
= _("failed to set alignment");
2822 /* Copy merge entity size. */
2823 osection
->entsize
= isection
->entsize
;
2825 /* This used to be mangle_section; we do here to avoid using
2826 bfd_get_section_by_name since some formats allow multiple
2827 sections with the same name. */
2828 isection
->output_section
= osection
;
2829 isection
->output_offset
= 0;
2831 /* Do not copy backend data if --extract-symbol is passed; anything
2832 that needs to look at the section contents will fail. */
2836 if ((isection
->flags
& SEC_GROUP
) != 0)
2838 asymbol
*gsym
= group_signature (isection
);
2842 gsym
->flags
|= BSF_KEEP
;
2843 if (ibfd
->xvec
->flavour
== bfd_target_elf_flavour
)
2844 elf_group_id (isection
) = gsym
;
2848 /* Allow the BFD backend to copy any private data it understands
2849 from the input section to the output section. */
2850 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
2852 err
= _("failed to copy private data");
2856 /* All went well. */
2861 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
2864 /* Return TRUE if input section ISECTION should be skipped. */
2867 skip_section (bfd
*ibfd
, sec_ptr isection
)
2873 /* If we have already failed earlier on,
2874 do not keep on generating complaints now. */
2881 if (is_strip_section (ibfd
, isection
))
2884 flags
= bfd_get_section_flags (ibfd
, isection
);
2885 if ((flags
& SEC_GROUP
) != 0)
2888 osection
= isection
->output_section
;
2889 size
= bfd_get_section_size (isection
);
2891 if (size
== 0 || osection
== 0)
2897 /* Copy relocations in input section ISECTION of IBFD to an output
2898 section with the same name in OBFDARG. If stripping then don't
2899 copy any relocation info. */
2902 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2904 bfd
*obfd
= (bfd
*) obfdarg
;
2910 if (skip_section (ibfd
, isection
))
2913 osection
= isection
->output_section
;
2915 /* Core files and DWO files do not need to be relocated. */
2916 if (bfd_get_format (obfd
) == bfd_core
|| strip_symbols
== STRIP_NONDWO
)
2920 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
2924 /* Do not complain if the target does not support relocations. */
2925 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
2930 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
2938 bfd_set_reloc (obfd
, osection
, NULL
, 0);
2939 osection
->flags
&= ~SEC_RELOC
;
2943 relpp
= (arelent
**) xmalloc (relsize
);
2944 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
2948 bfd_nonfatal_message (NULL
, ibfd
, isection
,
2949 _("relocation count is negative"));
2953 if (strip_symbols
== STRIP_ALL
)
2955 /* Remove relocations which are not in
2956 keep_strip_specific_list. */
2957 arelent
**temp_relpp
;
2958 long temp_relcount
= 0;
2961 temp_relpp
= (arelent
**) xmalloc (relsize
);
2962 for (i
= 0; i
< relcount
; i
++)
2964 /* PR 17512: file: 9e907e0c. */
2965 if (relpp
[i
]->sym_ptr_ptr
)
2966 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
2967 keep_specific_htab
))
2968 temp_relpp
[temp_relcount
++] = relpp
[i
];
2970 relcount
= temp_relcount
;
2975 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
2978 osection
->flags
&= ~SEC_RELOC
;
2984 /* Copy the data of input section ISECTION of IBFD
2985 to an output section with the same name in OBFD. */
2988 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
2990 bfd
*obfd
= (bfd
*) obfdarg
;
2991 struct section_list
*p
;
2995 if (skip_section (ibfd
, isection
))
2998 osection
= isection
->output_section
;
2999 size
= bfd_get_section_size (isection
);
3001 if (bfd_get_section_flags (ibfd
, isection
) & SEC_HAS_CONTENTS
3002 && bfd_get_section_flags (obfd
, osection
) & SEC_HAS_CONTENTS
)
3004 bfd_byte
*memhunk
= NULL
;
3006 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
))
3009 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
3015 /* We don't handle leftover bytes (too many possible behaviors,
3016 and we don't know what the user wants). The section length
3017 must be a multiple of the number of bytes to swap. */
3018 if ((size
% reverse_bytes
) == 0)
3023 for (i
= 0; i
< size
; i
+= reverse_bytes
)
3024 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
3026 bfd_byte
*m
= (bfd_byte
*) memhunk
;
3029 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
3030 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
3034 /* User must pad the section up in order to do this. */
3035 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3036 bfd_section_name (ibfd
, isection
), reverse_bytes
);
3041 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3042 char *from
= (char *) memhunk
+ copy_byte
;
3043 char *to
= (char *) memhunk
;
3044 char *end
= (char *) memhunk
+ size
;
3047 for (; from
< end
; from
+= interleave
)
3048 for (i
= 0; i
< copy_width
; i
++)
3050 if (&from
[i
] >= end
)
3055 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
3056 osection
->lma
/= interleave
;
3059 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3062 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3067 else if ((p
= find_section_list (bfd_get_section_name (ibfd
, isection
),
3068 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
3069 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
3071 void *memhunk
= xmalloc (size
);
3073 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3074 flag--they can just remove the section entirely and add it
3075 back again. However, we do permit them to turn on the
3076 SEC_HAS_CONTENTS flag, and take it to mean that the section
3077 contents should be zeroed out. */
3079 memset (memhunk
, 0, size
);
3080 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
3083 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
3090 /* Get all the sections. This is used when --gap-fill or --pad-to is
3094 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
3096 asection
***secppp
= (asection
***) secppparg
;
3098 **secppp
= osection
;
3102 /* Sort sections by VMA. This is called via qsort, and is used when
3103 --gap-fill or --pad-to is used. We force non loadable or empty
3104 sections to the front, where they are easier to ignore. */
3107 compare_section_lma (const void *arg1
, const void *arg2
)
3109 const asection
*const *sec1
= (const asection
* const *) arg1
;
3110 const asection
*const *sec2
= (const asection
* const *) arg2
;
3111 flagword flags1
, flags2
;
3113 /* Sort non loadable sections to the front. */
3114 flags1
= (*sec1
)->flags
;
3115 flags2
= (*sec2
)->flags
;
3116 if ((flags1
& SEC_HAS_CONTENTS
) == 0
3117 || (flags1
& SEC_LOAD
) == 0)
3119 if ((flags2
& SEC_HAS_CONTENTS
) != 0
3120 && (flags2
& SEC_LOAD
) != 0)
3125 if ((flags2
& SEC_HAS_CONTENTS
) == 0
3126 || (flags2
& SEC_LOAD
) == 0)
3130 /* Sort sections by LMA. */
3131 if ((*sec1
)->lma
> (*sec2
)->lma
)
3133 else if ((*sec1
)->lma
< (*sec2
)->lma
)
3136 /* Sort sections with the same LMA by size. */
3137 if (bfd_get_section_size (*sec1
) > bfd_get_section_size (*sec2
))
3139 else if (bfd_get_section_size (*sec1
) < bfd_get_section_size (*sec2
))
3145 /* Mark all the symbols which will be used in output relocations with
3146 the BSF_KEEP flag so that those symbols will not be stripped.
3148 Ignore relocations which will not appear in the output file. */
3151 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
3153 asymbol
**symbols
= (asymbol
**) symbolsarg
;
3158 /* Ignore an input section with no corresponding output section. */
3159 if (isection
->output_section
== NULL
)
3162 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
3165 /* Do not complain if the target does not support relocations. */
3166 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
3168 bfd_fatal (bfd_get_filename (ibfd
));
3174 relpp
= (arelent
**) xmalloc (relsize
);
3175 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
3177 bfd_fatal (bfd_get_filename (ibfd
));
3179 /* Examine each symbol used in a relocation. If it's not one of the
3180 special bfd section symbols, then mark it with BSF_KEEP. */
3181 for (i
= 0; i
< relcount
; i
++)
3183 if (*relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
3184 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
3185 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
3186 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
3193 /* Write out debugging information. */
3196 write_debugging_info (bfd
*obfd
, void *dhandle
,
3197 long *symcountp ATTRIBUTE_UNUSED
,
3198 asymbol
***symppp ATTRIBUTE_UNUSED
)
3200 if (bfd_get_flavour (obfd
) == bfd_target_ieee_flavour
)
3201 return write_ieee_debugging_info (obfd
, dhandle
);
3203 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
3204 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3206 bfd_byte
*syms
, *strings
;
3207 bfd_size_type symsize
, stringsize
;
3208 asection
*stabsec
, *stabstrsec
;
3211 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
3216 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
3217 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
3218 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
3220 || stabstrsec
== NULL
3221 || ! bfd_set_section_size (obfd
, stabsec
, symsize
)
3222 || ! bfd_set_section_size (obfd
, stabstrsec
, stringsize
)
3223 || ! bfd_set_section_alignment (obfd
, stabsec
, 2)
3224 || ! bfd_set_section_alignment (obfd
, stabstrsec
, 0))
3226 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3227 _("can't create debugging section"));
3231 /* We can get away with setting the section contents now because
3232 the next thing the caller is going to do is copy over the
3233 real sections. We may someday have to split the contents
3234 setting out of this function. */
3235 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
3236 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
3239 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3240 _("can't set debugging section contents"));
3247 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3248 _("don't know how to write debugging information for %s"),
3249 bfd_get_target (obfd
));
3253 /* If neither -D nor -U was specified explicitly,
3254 then use the configured default. */
3256 default_deterministic (void)
3258 if (deterministic
< 0)
3259 deterministic
= DEFAULT_AR_DETERMINISTIC
;
3263 strip_main (int argc
, char *argv
[])
3265 char *input_target
= NULL
;
3266 char *output_target
= NULL
;
3267 bfd_boolean show_version
= FALSE
;
3268 bfd_boolean formats_info
= FALSE
;
3271 char *output_file
= NULL
;
3273 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3274 strip_options
, (int *) 0)) != EOF
)
3279 input_target
= optarg
;
3282 output_target
= optarg
;
3285 input_target
= output_target
= optarg
;
3288 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3289 sections_removed
= TRUE
;
3292 strip_symbols
= STRIP_ALL
;
3296 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3297 strip_symbols
= STRIP_DEBUG
;
3299 case OPTION_STRIP_DWO
:
3300 strip_symbols
= STRIP_DWO
;
3302 case OPTION_STRIP_UNNEEDED
:
3303 strip_symbols
= STRIP_UNNEEDED
;
3306 add_specific_symbol (optarg
, keep_specific_htab
);
3309 add_specific_symbol (optarg
, strip_specific_htab
);
3312 output_file
= optarg
;
3315 preserve_dates
= TRUE
;
3318 deterministic
= TRUE
;
3321 deterministic
= FALSE
;
3324 discard_locals
= LOCALS_ALL
;
3327 discard_locals
= LOCALS_START_L
;
3333 show_version
= TRUE
;
3335 case OPTION_FORMATS_INFO
:
3336 formats_info
= TRUE
;
3338 case OPTION_ONLY_KEEP_DEBUG
:
3339 strip_symbols
= STRIP_NONDEBUG
;
3341 case OPTION_KEEP_FILE_SYMBOLS
:
3342 keep_file_symbols
= 1;
3345 /* We've been given a long option. */
3352 strip_usage (stdout
, 0);
3354 strip_usage (stderr
, 1);
3365 print_version ("strip");
3367 default_deterministic ();
3369 /* Default is to strip all symbols. */
3370 if (strip_symbols
== STRIP_UNDEF
3371 && discard_locals
== LOCALS_UNDEF
3372 && htab_elements (strip_specific_htab
) == 0)
3373 strip_symbols
= STRIP_ALL
;
3375 if (output_target
== NULL
)
3376 output_target
= input_target
;
3380 || (output_file
!= NULL
&& (i
+ 1) < argc
))
3381 strip_usage (stderr
, 1);
3383 for (; i
< argc
; i
++)
3385 int hold_status
= status
;
3386 struct stat statbuf
;
3389 if (get_file_size (argv
[i
]) < 1)
3396 /* No need to check the return value of stat().
3397 It has already been checked in get_file_size(). */
3398 stat (argv
[i
], &statbuf
);
3400 if (output_file
== NULL
3401 || filename_cmp (argv
[i
], output_file
) == 0)
3402 tmpname
= make_tempname (argv
[i
]);
3404 tmpname
= output_file
;
3406 if (tmpname
== NULL
)
3408 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
3409 _("could not create temporary file to hold stripped copy"));
3415 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
3419 set_times (tmpname
, &statbuf
);
3420 if (output_file
!= tmpname
)
3421 status
= (smart_rename (tmpname
,
3422 output_file
? output_file
: argv
[i
],
3423 preserve_dates
) != 0);
3425 status
= hold_status
;
3428 unlink_if_ordinary (tmpname
);
3429 if (output_file
!= tmpname
)
3436 /* Set up PE subsystem. */
3439 set_pe_subsystem (const char *s
)
3441 const char *version
, *subsystem
;
3451 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
3452 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
3453 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
3454 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
3455 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
3456 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
3457 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
3458 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
3459 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
3460 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
3466 /* Check for the presence of a version number. */
3467 version
= strchr (s
, ':');
3468 if (version
== NULL
)
3472 int len
= version
- s
;
3476 version
= copy
+ 1 + len
;
3477 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
3479 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
3481 non_fatal (_("%s: bad version in PE subsystem"), s
);
3484 /* Check for numeric subsystem. */
3485 value
= (short) strtol (subsystem
, ©
, 0);
3488 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3489 if (v
[i
].value
== value
)
3491 pe_subsystem
= value
;
3492 set_def
= v
[i
].set_def
;
3498 /* Search for subsystem by name. */
3499 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
3500 if (strcmp (subsystem
, v
[i
].name
) == 0)
3502 pe_subsystem
= v
[i
].value
;
3503 set_def
= v
[i
].set_def
;
3511 fatal (_("unknown PE subsystem: %s"), s
);
3516 if (pe_file_alignment
== (bfd_vma
) -1)
3517 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
3518 if (pe_section_alignment
== (bfd_vma
) -1)
3519 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
3523 free ((char *) subsystem
);
3526 /* Convert EFI target to PEI target. */
3529 convert_efi_target (char *efi
)
3535 if (strcmp (efi
+ 4, "ia32") == 0)
3537 /* Change ia32 to i386. */
3542 else if (strcmp (efi
+ 4, "x86_64") == 0)
3544 /* Change x86_64 to x86-64. */
3550 copy_main (int argc
, char *argv
[])
3552 char *input_filename
= NULL
;
3553 char *output_filename
= NULL
;
3555 char *input_target
= NULL
;
3556 char *output_target
= NULL
;
3557 bfd_boolean show_version
= FALSE
;
3558 bfd_boolean change_warn
= TRUE
;
3559 bfd_boolean formats_info
= FALSE
;
3561 struct stat statbuf
;
3562 const bfd_arch_info_type
*input_arch
= NULL
;
3564 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3565 copy_options
, (int *) 0)) != EOF
)
3570 copy_byte
= atoi (optarg
);
3572 fatal (_("byte number must be non-negative"));
3576 input_arch
= bfd_scan_arch (optarg
);
3577 if (input_arch
== NULL
)
3578 fatal (_("architecture %s unknown"), optarg
);
3584 interleave
= atoi (optarg
);
3586 fatal (_("interleave must be positive"));
3592 case OPTION_INTERLEAVE_WIDTH
:
3593 copy_width
= atoi (optarg
);
3595 fatal(_("interleave width must be positive"));
3599 case 's': /* "source" - 'I' is preferred */
3600 input_target
= optarg
;
3604 case 'd': /* "destination" - 'O' is preferred */
3605 output_target
= optarg
;
3609 input_target
= output_target
= optarg
;
3613 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
3614 sections_copied
= TRUE
;
3618 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_REMOVE
);
3619 sections_removed
= TRUE
;
3623 strip_symbols
= STRIP_ALL
;
3627 strip_symbols
= STRIP_DEBUG
;
3630 case OPTION_STRIP_DWO
:
3631 strip_symbols
= STRIP_DWO
;
3634 case OPTION_STRIP_UNNEEDED
:
3635 strip_symbols
= STRIP_UNNEEDED
;
3638 case OPTION_ONLY_KEEP_DEBUG
:
3639 strip_symbols
= STRIP_NONDEBUG
;
3642 case OPTION_KEEP_FILE_SYMBOLS
:
3643 keep_file_symbols
= 1;
3646 case OPTION_ADD_GNU_DEBUGLINK
:
3647 long_section_names
= ENABLE
;
3648 gnu_debuglink_filename
= optarg
;
3652 add_specific_symbol (optarg
, keep_specific_htab
);
3656 add_specific_symbol (optarg
, strip_specific_htab
);
3659 case OPTION_STRIP_UNNEEDED_SYMBOL
:
3660 add_specific_symbol (optarg
, strip_unneeded_htab
);
3664 add_specific_symbol (optarg
, localize_specific_htab
);
3667 case OPTION_GLOBALIZE_SYMBOL
:
3668 add_specific_symbol (optarg
, globalize_specific_htab
);
3672 add_specific_symbol (optarg
, keepglobal_specific_htab
);
3676 add_specific_symbol (optarg
, weaken_specific_htab
);
3680 preserve_dates
= TRUE
;
3684 deterministic
= TRUE
;
3688 deterministic
= FALSE
;
3696 discard_locals
= LOCALS_ALL
;
3700 discard_locals
= LOCALS_START_L
;
3708 show_version
= TRUE
;
3711 case OPTION_FORMATS_INFO
:
3712 formats_info
= TRUE
;
3719 case OPTION_ADD_SECTION
:
3723 struct section_add
*pa
;
3726 s
= strchr (optarg
, '=');
3729 fatal (_("bad format for %s"), "--add-section");
3731 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
3732 pa
->name
= xstrndup (optarg
, s
- optarg
);
3733 pa
->filename
= s
+ 1;
3735 /* We don't use get_file_size so that we can do
3736 --add-section .note.GNU_stack=/dev/null
3737 get_file_size doesn't work on /dev/null. */
3739 f
= fopen (pa
->filename
, FOPEN_RB
);
3741 fatal (_("cannot open: %s: %s"),
3742 pa
->filename
, strerror (errno
));
3746 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
3754 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
3757 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
3759 fatal (_("%s: fread failed"), pa
->filename
);
3768 pa
->next
= add_sections
;
3773 case OPTION_DUMP_SECTION
:
3776 struct section_add
*pa
;
3778 s
= strchr (optarg
, '=');
3781 fatal (_("bad format for %s"), "--dump-section");
3783 pa
= (struct section_add
*) xmalloc (sizeof * pa
);
3784 pa
->name
= xstrndup (optarg
, s
- optarg
);
3785 pa
->filename
= s
+ 1;
3786 pa
->next
= dump_sections
;
3787 pa
->contents
= NULL
;
3792 case OPTION_CHANGE_START
:
3793 change_start
= parse_vma (optarg
, "--change-start");
3796 case OPTION_CHANGE_SECTION_ADDRESS
:
3797 case OPTION_CHANGE_SECTION_LMA
:
3798 case OPTION_CHANGE_SECTION_VMA
:
3800 struct section_list
* p
;
3801 unsigned int context
= 0;
3805 char *option
= NULL
;
3810 case OPTION_CHANGE_SECTION_ADDRESS
:
3811 option
= "--change-section-address";
3812 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
3814 case OPTION_CHANGE_SECTION_LMA
:
3815 option
= "--change-section-lma";
3816 context
= SECTION_CONTEXT_ALTER_LMA
;
3818 case OPTION_CHANGE_SECTION_VMA
:
3819 option
= "--change-section-vma";
3820 context
= SECTION_CONTEXT_ALTER_VMA
;
3824 s
= strchr (optarg
, '=');
3827 s
= strchr (optarg
, '+');
3830 s
= strchr (optarg
, '-');
3832 fatal (_("bad format for %s"), option
);
3837 /* Correct the context. */
3840 case OPTION_CHANGE_SECTION_ADDRESS
:
3841 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
3843 case OPTION_CHANGE_SECTION_LMA
:
3844 context
= SECTION_CONTEXT_SET_LMA
;
3846 case OPTION_CHANGE_SECTION_VMA
:
3847 context
= SECTION_CONTEXT_SET_VMA
;
3853 name
= (char *) xmalloc (len
+ 1);
3854 strncpy (name
, optarg
, len
);
3857 p
= find_section_list (name
, TRUE
, context
);
3859 val
= parse_vma (s
+ 1, option
);
3865 case OPTION_CHANGE_SECTION_ADDRESS
:
3869 case OPTION_CHANGE_SECTION_LMA
:
3873 case OPTION_CHANGE_SECTION_VMA
:
3880 case OPTION_CHANGE_ADDRESSES
:
3881 change_section_address
= parse_vma (optarg
, "--change-addresses");
3882 change_start
= change_section_address
;
3885 case OPTION_CHANGE_WARNINGS
:
3889 case OPTION_CHANGE_LEADING_CHAR
:
3890 change_leading_char
= TRUE
;
3893 case OPTION_COMPRESS_DEBUG_SECTIONS
:
3894 do_debug_sections
= compress
;
3897 case OPTION_DEBUGGING
:
3898 convert_debugging
= TRUE
;
3901 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
3902 do_debug_sections
= decompress
;
3905 case OPTION_GAP_FILL
:
3907 bfd_vma gap_fill_vma
;
3909 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
3910 gap_fill
= (bfd_byte
) gap_fill_vma
;
3911 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
3915 sprintf_vma (buff
, gap_fill_vma
);
3917 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3920 gap_fill_set
= TRUE
;
3924 case OPTION_NO_CHANGE_WARNINGS
:
3925 change_warn
= FALSE
;
3929 pad_to
= parse_vma (optarg
, "--pad-to");
3933 case OPTION_REMOVE_LEADING_CHAR
:
3934 remove_leading_char
= TRUE
;
3937 case OPTION_REDEFINE_SYM
:
3939 /* Push this redefinition onto redefine_symbol_list. */
3943 const char *nextarg
;
3944 char *source
, *target
;
3946 s
= strchr (optarg
, '=');
3948 fatal (_("bad format for %s"), "--redefine-sym");
3951 source
= (char *) xmalloc (len
+ 1);
3952 strncpy (source
, optarg
, len
);
3956 len
= strlen (nextarg
);
3957 target
= (char *) xmalloc (len
+ 1);
3958 strcpy (target
, nextarg
);
3960 redefine_list_append ("--redefine-sym", source
, target
);
3967 case OPTION_REDEFINE_SYMS
:
3968 add_redefine_syms_file (optarg
);
3971 case OPTION_SET_SECTION_FLAGS
:
3973 struct section_list
*p
;
3978 s
= strchr (optarg
, '=');
3980 fatal (_("bad format for %s"), "--set-section-flags");
3983 name
= (char *) xmalloc (len
+ 1);
3984 strncpy (name
, optarg
, len
);
3987 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
3989 p
->flags
= parse_flags (s
+ 1);
3993 case OPTION_RENAME_SECTION
:
3996 const char *eq
, *fl
;
4001 eq
= strchr (optarg
, '=');
4003 fatal (_("bad format for %s"), "--rename-section");
4007 fatal (_("bad format for %s"), "--rename-section");
4009 old_name
= (char *) xmalloc (len
+ 1);
4010 strncpy (old_name
, optarg
, len
);
4014 fl
= strchr (eq
, ',');
4017 flags
= parse_flags (fl
+ 1);
4027 fatal (_("bad format for %s"), "--rename-section");
4029 new_name
= (char *) xmalloc (len
+ 1);
4030 strncpy (new_name
, eq
, len
);
4033 add_section_rename (old_name
, new_name
, flags
);
4037 case OPTION_SET_START
:
4038 set_start
= parse_vma (optarg
, "--set-start");
4039 set_start_set
= TRUE
;
4042 case OPTION_SREC_LEN
:
4043 Chunk
= parse_vma (optarg
, "--srec-len");
4046 case OPTION_SREC_FORCES3
:
4050 case OPTION_STRIP_SYMBOLS
:
4051 add_specific_symbols (optarg
, strip_specific_htab
);
4054 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
4055 add_specific_symbols (optarg
, strip_unneeded_htab
);
4058 case OPTION_KEEP_SYMBOLS
:
4059 add_specific_symbols (optarg
, keep_specific_htab
);
4062 case OPTION_LOCALIZE_HIDDEN
:
4063 localize_hidden
= TRUE
;
4066 case OPTION_LOCALIZE_SYMBOLS
:
4067 add_specific_symbols (optarg
, localize_specific_htab
);
4070 case OPTION_LONG_SECTION_NAMES
:
4071 if (!strcmp ("enable", optarg
))
4072 long_section_names
= ENABLE
;
4073 else if (!strcmp ("disable", optarg
))
4074 long_section_names
= DISABLE
;
4075 else if (!strcmp ("keep", optarg
))
4076 long_section_names
= KEEP
;
4078 fatal (_("unknown long section names option '%s'"), optarg
);
4081 case OPTION_GLOBALIZE_SYMBOLS
:
4082 add_specific_symbols (optarg
, globalize_specific_htab
);
4085 case OPTION_KEEPGLOBAL_SYMBOLS
:
4086 add_specific_symbols (optarg
, keepglobal_specific_htab
);
4089 case OPTION_WEAKEN_SYMBOLS
:
4090 add_specific_symbols (optarg
, weaken_specific_htab
);
4093 case OPTION_ALT_MACH_CODE
:
4094 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
4095 if (use_alt_mach_code
== 0)
4096 fatal (_("unable to parse alternative machine code"));
4099 case OPTION_PREFIX_SYMBOLS
:
4100 prefix_symbols_string
= optarg
;
4103 case OPTION_PREFIX_SECTIONS
:
4104 prefix_sections_string
= optarg
;
4107 case OPTION_PREFIX_ALLOC_SECTIONS
:
4108 prefix_alloc_sections_string
= optarg
;
4111 case OPTION_READONLY_TEXT
:
4112 bfd_flags_to_set
|= WP_TEXT
;
4113 bfd_flags_to_clear
&= ~WP_TEXT
;
4116 case OPTION_WRITABLE_TEXT
:
4117 bfd_flags_to_clear
|= WP_TEXT
;
4118 bfd_flags_to_set
&= ~WP_TEXT
;
4122 bfd_flags_to_set
|= D_PAGED
;
4123 bfd_flags_to_clear
&= ~D_PAGED
;
4127 bfd_flags_to_clear
|= D_PAGED
;
4128 bfd_flags_to_set
&= ~D_PAGED
;
4131 case OPTION_EXTRACT_DWO
:
4132 strip_symbols
= STRIP_NONDWO
;
4135 case OPTION_EXTRACT_SYMBOL
:
4136 extract_symbol
= TRUE
;
4139 case OPTION_REVERSE_BYTES
:
4141 int prev
= reverse_bytes
;
4143 reverse_bytes
= atoi (optarg
);
4144 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
4145 fatal (_("number of bytes to reverse must be positive and even"));
4147 if (prev
&& prev
!= reverse_bytes
)
4148 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4153 case OPTION_FILE_ALIGNMENT
:
4154 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
4160 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
4162 || (*end
!= '.' && *end
!= '\0'))
4163 non_fatal (_("%s: invalid reserve value for --heap"),
4165 else if (*end
!= '\0')
4167 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
4169 non_fatal (_("%s: invalid commit value for --heap"),
4175 case OPTION_IMAGE_BASE
:
4176 pe_image_base
= parse_vma (optarg
, "--image-base");
4179 case OPTION_SECTION_ALIGNMENT
:
4180 pe_section_alignment
= parse_vma (optarg
,
4181 "--section-alignment");
4184 case OPTION_SUBSYSTEM
:
4185 set_pe_subsystem (optarg
);
4191 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
4193 || (*end
!= '.' && *end
!= '\0'))
4194 non_fatal (_("%s: invalid reserve value for --stack"),
4196 else if (*end
!= '\0')
4198 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
4200 non_fatal (_("%s: invalid commit value for --stack"),
4207 /* We've been given a long option. */
4212 copy_usage (stdout
, 0);
4215 copy_usage (stderr
, 1);
4226 print_version ("objcopy");
4228 if (interleave
&& copy_byte
== -1)
4229 fatal (_("interleave start byte must be set with --byte"));
4231 if (copy_byte
>= interleave
)
4232 fatal (_("byte number must be less than interleave"));
4234 if (copy_width
> interleave
- copy_byte
)
4235 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4237 if (optind
== argc
|| optind
+ 2 < argc
)
4238 copy_usage (stderr
, 1);
4240 input_filename
= argv
[optind
];
4241 if (optind
+ 1 < argc
)
4242 output_filename
= argv
[optind
+ 1];
4244 default_deterministic ();
4246 /* Default is to strip no symbols. */
4247 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
4248 strip_symbols
= STRIP_NONE
;
4250 if (output_target
== NULL
)
4251 output_target
= input_target
;
4253 /* Convert input EFI target to PEI target. */
4254 if (input_target
!= NULL
4255 && strncmp (input_target
, "efi-", 4) == 0)
4259 efi
= xstrdup (output_target
+ 4);
4260 if (strncmp (efi
, "bsdrv-", 6) == 0
4261 || strncmp (efi
, "rtdrv-", 6) == 0)
4263 else if (strncmp (efi
, "app-", 4) != 0)
4264 fatal (_("unknown input EFI target: %s"), input_target
);
4267 convert_efi_target (efi
);
4270 /* Convert output EFI target to PEI target. */
4271 if (output_target
!= NULL
4272 && strncmp (output_target
, "efi-", 4) == 0)
4276 efi
= xstrdup (output_target
+ 4);
4277 if (strncmp (efi
, "app-", 4) == 0)
4279 if (pe_subsystem
== -1)
4280 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4282 else if (strncmp (efi
, "bsdrv-", 6) == 0)
4284 if (pe_subsystem
== -1)
4285 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
4288 else if (strncmp (efi
, "rtdrv-", 6) == 0)
4290 if (pe_subsystem
== -1)
4291 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
4295 fatal (_("unknown output EFI target: %s"), output_target
);
4297 if (pe_file_alignment
== (bfd_vma
) -1)
4298 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4299 if (pe_section_alignment
== (bfd_vma
) -1)
4300 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4302 output_target
= efi
;
4303 convert_efi_target (efi
);
4307 if (stat (input_filename
, & statbuf
) < 0)
4308 fatal (_("warning: could not locate '%s'. System error message: %s"),
4309 input_filename
, strerror (errno
));
4311 /* If there is no destination file, or the source and destination files
4312 are the same, then create a temp and rename the result into the input. */
4313 if (output_filename
== NULL
4314 || filename_cmp (input_filename
, output_filename
) == 0)
4315 tmpname
= make_tempname (input_filename
);
4317 tmpname
= output_filename
;
4319 if (tmpname
== NULL
)
4320 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4321 input_filename
, strerror (errno
));
4323 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
4327 set_times (tmpname
, &statbuf
);
4328 if (tmpname
!= output_filename
)
4329 status
= (smart_rename (tmpname
, input_filename
,
4330 preserve_dates
) != 0);
4333 unlink_if_ordinary (tmpname
);
4337 struct section_list
*p
;
4339 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
4343 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
4347 sprintf_vma (buff
, p
->vma_val
);
4349 /* xgettext:c-format */
4350 non_fatal (_("%s %s%c0x%s never used"),
4351 "--change-section-vma",
4353 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
4357 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
4361 sprintf_vma (buff
, p
->lma_val
);
4363 /* xgettext:c-format */
4364 non_fatal (_("%s %s%c0x%s never used"),
4365 "--change-section-lma",
4367 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
4378 main (int argc
, char *argv
[])
4380 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4381 setlocale (LC_MESSAGES
, "");
4383 #if defined (HAVE_SETLOCALE)
4384 setlocale (LC_CTYPE
, "");
4386 bindtextdomain (PACKAGE
, LOCALEDIR
);
4387 textdomain (PACKAGE
);
4389 program_name
= argv
[0];
4390 xmalloc_set_program_name (program_name
);
4392 START_PROGRESS (program_name
, 0);
4394 expandargv (&argc
, &argv
);
4396 strip_symbols
= STRIP_UNDEF
;
4397 discard_locals
= LOCALS_UNDEF
;
4400 set_default_bfd_target ();
4404 int i
= strlen (program_name
);
4405 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4406 /* Drop the .exe suffix, if any. */
4407 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
4410 program_name
[i
] = '\0';
4413 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
4416 create_symbol_htabs ();
4419 bfd_set_error_program_name (argv
[0]);
4422 strip_main (argc
, argv
);
4424 copy_main (argc
, argv
);
4426 END_PROGRESS (program_name
);