1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2020 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"
31 #include "coff/internal.h"
33 #include "safe-ctype.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 node includes symbol name mapping to support redefine_sym. */
66 struct addsym_node
*next
;
71 const char * othersym
;
74 typedef struct section_rename
76 const char * old_name
;
77 const char * new_name
;
79 struct section_rename
* next
;
83 /* List of sections to be renamed. */
84 static section_rename
*section_rename_list
;
86 static asymbol
**isympp
= NULL
; /* Input symbols. */
87 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
89 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
90 static int copy_byte
= -1;
91 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
92 static int copy_width
= 1;
94 static bfd_boolean verbose
; /* Print file and target names. */
95 static bfd_boolean preserve_dates
; /* Preserve input file timestamp. */
96 static int deterministic
= -1; /* Enable deterministic archives. */
97 static int status
= 0; /* Exit status. */
99 static bfd_boolean merge_notes
= FALSE
; /* Merge note sections. */
101 typedef struct merged_note_section
103 asection
* sec
; /* The section that is being merged. */
104 bfd_byte
* contents
;/* New contents of the section. */
105 bfd_size_type size
; /* New size of the section. */
106 struct merged_note_section
* next
; /* Link to next merged note section. */
107 } merged_note_section
;
112 STRIP_NONE
, /* Don't strip. */
113 STRIP_DEBUG
, /* Strip all debugger symbols. */
114 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
115 STRIP_NONDEBUG
, /* Strip everything but debug info. */
116 STRIP_DWO
, /* Strip all DWO info. */
117 STRIP_NONDWO
, /* Strip everything but DWO info. */
118 STRIP_ALL
/* Strip all symbols. */
121 /* Which symbols to remove. */
122 static enum strip_action strip_symbols
= STRIP_UNDEF
;
127 LOCALS_START_L
, /* Discard locals starting with L. */
128 LOCALS_ALL
/* Discard all locals. */
131 /* Which local symbols to remove. Overrides STRIP_ALL. */
132 static enum locals_action discard_locals
;
134 /* Structure used to hold lists of sections and actions to take. */
137 struct section_list
* next
; /* Next section to change. */
138 const char * pattern
; /* Section name pattern. */
139 bfd_boolean used
; /* Whether this entry was used. */
141 unsigned int context
; /* What to do with matching sections. */
142 /* Flag bits used in the context field.
143 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
144 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
145 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
146 #define SECTION_CONTEXT_KEEP (1 << 2) /* Keep this section. */
147 #define SECTION_CONTEXT_SET_VMA (1 << 3) /* Set the sections' VMA address. */
148 #define SECTION_CONTEXT_ALTER_VMA (1 << 4) /* Increment or decrement the section's VMA address. */
149 #define SECTION_CONTEXT_SET_LMA (1 << 5) /* Set the sections' LMA address. */
150 #define SECTION_CONTEXT_ALTER_LMA (1 << 6) /* Increment or decrement the section's LMA address. */
151 #define SECTION_CONTEXT_SET_FLAGS (1 << 7) /* Set the section's flags. */
152 #define SECTION_CONTEXT_REMOVE_RELOCS (1 << 8) /* Remove relocations for this section. */
153 #define SECTION_CONTEXT_SET_ALIGNMENT (1 << 9) /* Set alignment for section. */
155 bfd_vma vma_val
; /* Amount to change by or set to. */
156 bfd_vma lma_val
; /* Amount to change by or set to. */
157 flagword flags
; /* What to set the section flags to. */
158 unsigned int alignment
; /* Alignment of output section. */
161 static struct section_list
*change_sections
;
163 /* TRUE if some sections are to be removed. */
164 static bfd_boolean sections_removed
;
166 /* TRUE if only some sections are to be copied. */
167 static bfd_boolean sections_copied
;
169 /* Changes to the start address. */
170 static bfd_vma change_start
= 0;
171 static bfd_boolean set_start_set
= FALSE
;
172 static bfd_vma set_start
;
174 /* Changes to section addresses. */
175 static bfd_vma change_section_address
= 0;
177 /* Filling gaps between sections. */
178 static bfd_boolean gap_fill_set
= FALSE
;
179 static bfd_byte gap_fill
= 0;
181 /* Pad to a given address. */
182 static bfd_boolean pad_to_set
= FALSE
;
183 static bfd_vma pad_to
;
185 /* Use alternative machine code? */
186 static unsigned long use_alt_mach_code
= 0;
188 /* Output BFD flags user wants to set or clear */
189 static flagword bfd_flags_to_set
;
190 static flagword bfd_flags_to_clear
;
192 /* List of sections to add. */
195 /* Next section to add. */
196 struct section_add
*next
;
197 /* Name of section to add. */
199 /* Name of file holding section contents. */
200 const char *filename
;
203 /* Contents of file. */
205 /* BFD section, after it has been added. */
209 /* List of sections to add to the output BFD. */
210 static struct section_add
*add_sections
;
212 /* List of sections to update in the output BFD. */
213 static struct section_add
*update_sections
;
215 /* List of sections to dump from the output BFD. */
216 static struct section_add
*dump_sections
;
218 /* If non-NULL the argument to --add-gnu-debuglink.
219 This should be the filename to store in the .gnu_debuglink section. */
220 static const char * gnu_debuglink_filename
= NULL
;
222 /* Whether to convert debugging information. */
223 static bfd_boolean convert_debugging
= FALSE
;
225 /* Whether to compress/decompress DWARF debug sections. */
230 compress_zlib
= compress
| 1 << 1,
231 compress_gnu_zlib
= compress
| 1 << 2,
232 compress_gabi_zlib
= compress
| 1 << 3,
234 } do_debug_sections
= nothing
;
236 /* Whether to generate ELF common symbols with the STT_COMMON type. */
237 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
239 /* Whether to change the leading character in symbol names. */
240 static bfd_boolean change_leading_char
= FALSE
;
242 /* Whether to remove the leading character from global symbol names. */
243 static bfd_boolean remove_leading_char
= FALSE
;
245 /* Whether to permit wildcard in symbol comparison. */
246 static bfd_boolean wildcard
= FALSE
;
248 /* True if --localize-hidden is in effect. */
249 static bfd_boolean localize_hidden
= FALSE
;
251 /* List of symbols to strip, keep, localize, keep-global, weaken,
253 static htab_t strip_specific_htab
= NULL
;
254 static htab_t strip_unneeded_htab
= NULL
;
255 static htab_t keep_specific_htab
= NULL
;
256 static htab_t localize_specific_htab
= NULL
;
257 static htab_t globalize_specific_htab
= NULL
;
258 static htab_t keepglobal_specific_htab
= NULL
;
259 static htab_t weaken_specific_htab
= NULL
;
260 static htab_t redefine_specific_htab
= NULL
;
261 static htab_t redefine_specific_reverse_htab
= NULL
;
262 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
263 static int add_symbols
= 0;
265 static char *strip_specific_buffer
= NULL
;
266 static char *strip_unneeded_buffer
= NULL
;
267 static char *keep_specific_buffer
= NULL
;
268 static char *localize_specific_buffer
= NULL
;
269 static char *globalize_specific_buffer
= NULL
;
270 static char *keepglobal_specific_buffer
= NULL
;
271 static char *weaken_specific_buffer
= NULL
;
273 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
274 static bfd_boolean weaken
= FALSE
;
276 /* If this is TRUE, we retain BSF_FILE symbols. */
277 static bfd_boolean keep_file_symbols
= FALSE
;
279 /* Prefix symbols/sections. */
280 static char *prefix_symbols_string
= 0;
281 static char *prefix_sections_string
= 0;
282 static char *prefix_alloc_sections_string
= 0;
284 /* True if --extract-symbol was passed on the command line. */
285 static bfd_boolean extract_symbol
= FALSE
;
287 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
288 of <reverse_bytes> bytes within each output section. */
289 static int reverse_bytes
= 0;
291 /* For Coff objects, we may want to allow or disallow long section names,
292 or preserve them where found in the inputs. Debug info relies on them. */
293 enum long_section_name_handling
300 /* The default long section handling mode is to preserve them.
301 This is also the only behaviour for 'strip'. */
302 static enum long_section_name_handling long_section_names
= KEEP
;
304 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
305 enum command_line_switch
307 OPTION_ADD_SECTION
=150,
308 OPTION_ADD_GNU_DEBUGLINK
,
310 OPTION_ALT_MACH_CODE
,
311 OPTION_CHANGE_ADDRESSES
,
312 OPTION_CHANGE_LEADING_CHAR
,
313 OPTION_CHANGE_SECTION_ADDRESS
,
314 OPTION_CHANGE_SECTION_LMA
,
315 OPTION_CHANGE_SECTION_VMA
,
317 OPTION_CHANGE_WARNINGS
,
318 OPTION_COMPRESS_DEBUG_SECTIONS
,
320 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
322 OPTION_ELF_STT_COMMON
,
324 OPTION_EXTRACT_SYMBOL
,
325 OPTION_FILE_ALIGNMENT
,
328 OPTION_GLOBALIZE_SYMBOL
,
329 OPTION_GLOBALIZE_SYMBOLS
,
333 OPTION_INTERLEAVE_WIDTH
,
334 OPTION_KEEPGLOBAL_SYMBOLS
,
335 OPTION_KEEP_FILE_SYMBOLS
,
338 OPTION_LOCALIZE_HIDDEN
,
339 OPTION_LOCALIZE_SYMBOLS
,
340 OPTION_LONG_SECTION_NAMES
,
342 OPTION_NO_MERGE_NOTES
,
343 OPTION_NO_CHANGE_WARNINGS
,
344 OPTION_ONLY_KEEP_DEBUG
,
346 OPTION_PREFIX_ALLOC_SECTIONS
,
347 OPTION_PREFIX_SECTIONS
,
348 OPTION_PREFIX_SYMBOLS
,
350 OPTION_READONLY_TEXT
,
352 OPTION_REDEFINE_SYMS
,
353 OPTION_REMOVE_LEADING_CHAR
,
354 OPTION_REMOVE_RELOCS
,
355 OPTION_RENAME_SECTION
,
356 OPTION_REVERSE_BYTES
,
357 OPTION_PE_SECTION_ALIGNMENT
,
358 OPTION_SET_SECTION_FLAGS
,
359 OPTION_SET_SECTION_ALIGNMENT
,
365 OPTION_STRIP_SYMBOLS
,
366 OPTION_STRIP_UNNEEDED
,
367 OPTION_STRIP_UNNEEDED_SYMBOL
,
368 OPTION_STRIP_UNNEEDED_SYMBOLS
,
370 OPTION_UPDATE_SECTION
,
371 OPTION_VERILOG_DATA_WIDTH
,
373 OPTION_WEAKEN_SYMBOLS
,
377 /* Options to handle if running as "strip". */
379 static struct option strip_options
[] =
381 {"disable-deterministic-archives", no_argument
, 0, 'U'},
382 {"discard-all", no_argument
, 0, 'x'},
383 {"discard-locals", no_argument
, 0, 'X'},
384 {"enable-deterministic-archives", no_argument
, 0, 'D'},
385 {"format", required_argument
, 0, 'F'}, /* Obsolete */
386 {"help", no_argument
, 0, 'h'},
387 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
388 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
389 {"input-target", required_argument
, 0, 'I'},
390 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
391 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
392 {"keep-symbol", required_argument
, 0, 'K'},
393 {"merge-notes", no_argument
, 0, 'M'},
394 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
395 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
396 {"output-file", required_argument
, 0, 'o'},
397 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
398 {"output-target", required_argument
, 0, 'O'},
399 {"preserve-dates", no_argument
, 0, 'p'},
400 {"remove-section", required_argument
, 0, 'R'},
401 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
402 {"strip-all", no_argument
, 0, 's'},
403 {"strip-debug", no_argument
, 0, 'S'},
404 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
405 {"strip-symbol", required_argument
, 0, 'N'},
406 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
407 {"target", required_argument
, 0, 'F'},
408 {"verbose", no_argument
, 0, 'v'},
409 {"version", no_argument
, 0, 'V'},
410 {"wildcard", no_argument
, 0, 'w'},
411 {0, no_argument
, 0, 0}
414 /* Options to handle if running as "objcopy". */
416 static struct option copy_options
[] =
418 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
419 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
420 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
421 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
422 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
423 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
424 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
425 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
426 {"binary-architecture", required_argument
, 0, 'B'},
427 {"byte", required_argument
, 0, 'b'},
428 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
429 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
430 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
431 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
432 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
433 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
434 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
435 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
436 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
437 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
438 {"disable-deterministic-archives", no_argument
, 0, 'U'},
439 {"discard-all", no_argument
, 0, 'x'},
440 {"discard-locals", no_argument
, 0, 'X'},
441 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
442 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
443 {"enable-deterministic-archives", no_argument
, 0, 'D'},
444 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
445 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
446 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
447 {"format", required_argument
, 0, 'F'}, /* Obsolete */
448 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
449 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
450 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
451 {"heap", required_argument
, 0, OPTION_HEAP
},
452 {"help", no_argument
, 0, 'h'},
453 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
454 {"impure", no_argument
, 0, OPTION_IMPURE
},
455 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
456 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
457 {"input-target", required_argument
, 0, 'I'},
458 {"interleave", optional_argument
, 0, 'i'},
459 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
460 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
461 {"keep-global-symbol", required_argument
, 0, 'G'},
462 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
463 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
464 {"keep-symbol", required_argument
, 0, 'K'},
465 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
466 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
467 {"localize-symbol", required_argument
, 0, 'L'},
468 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
469 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
470 {"merge-notes", no_argument
, 0, 'M'},
471 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
472 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
473 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
474 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
475 {"only-section", required_argument
, 0, 'j'},
476 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
477 {"output-target", required_argument
, 0, 'O'},
478 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
479 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
480 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
481 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
482 {"preserve-dates", no_argument
, 0, 'p'},
483 {"pure", no_argument
, 0, OPTION_PURE
},
484 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
485 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
486 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
487 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
488 {"remove-section", required_argument
, 0, 'R'},
489 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
490 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
491 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
492 {"section-alignment", required_argument
, 0, OPTION_PE_SECTION_ALIGNMENT
},
493 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
494 {"set-section-alignment", required_argument
, 0, OPTION_SET_SECTION_ALIGNMENT
},
495 {"set-start", required_argument
, 0, OPTION_SET_START
},
496 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
497 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
498 {"stack", required_argument
, 0, OPTION_STACK
},
499 {"strip-all", no_argument
, 0, 'S'},
500 {"strip-debug", no_argument
, 0, 'g'},
501 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
502 {"strip-symbol", required_argument
, 0, 'N'},
503 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
504 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
505 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
506 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
507 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
508 {"target", required_argument
, 0, 'F'},
509 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
510 {"verbose", no_argument
, 0, 'v'},
511 {"verilog-data-width", required_argument
, 0, OPTION_VERILOG_DATA_WIDTH
},
512 {"version", no_argument
, 0, 'V'},
513 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
514 {"weaken-symbol", required_argument
, 0, 'W'},
515 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
516 {"wildcard", no_argument
, 0, 'w'},
517 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
518 {0, no_argument
, 0, 0}
522 extern char *program_name
;
524 /* This flag distinguishes between strip and objcopy:
525 1 means this is 'strip'; 0 means this is 'objcopy'.
526 -1 means if we should use argv[0] to decide. */
529 /* The maximum length of an S record. This variable is defined in srec.c
530 and can be modified by the --srec-len parameter. */
531 extern unsigned int _bfd_srec_len
;
533 /* Restrict the generation of Srecords to type S3 only.
534 This variable is defined in bfd/srec.c and can be toggled
535 on by the --srec-forceS3 command line switch. */
536 extern bfd_boolean _bfd_srec_forceS3
;
538 /* Width of data in bytes for verilog output.
539 This variable is declared in bfd/verilog.c and can be modified by
540 the --verilog-data-width parameter. */
541 extern unsigned int VerilogDataWidth
;
543 /* Forward declarations. */
544 static void setup_section (bfd
*, asection
*, void *);
545 static void setup_bfd_headers (bfd
*, bfd
*);
546 static void copy_relocations_in_section (bfd
*, asection
*, void *);
547 static void copy_section (bfd
*, asection
*, void *);
548 static void get_sections (bfd
*, asection
*, void *);
549 static int compare_section_lma (const void *, const void *);
550 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
551 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
552 static const char *lookup_sym_redefinition (const char *);
553 static const char *find_section_rename (const char *, flagword
*);
555 ATTRIBUTE_NORETURN
static void
556 copy_usage (FILE *stream
, int exit_status
)
558 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
559 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
560 fprintf (stream
, _(" The options are:\n"));
561 fprintf (stream
, _("\
562 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
563 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
564 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
565 -F --target <bfdname> Set both input and output format to <bfdname>\n\
566 --debugging Convert debugging information, if possible\n\
567 -p --preserve-dates Copy modified/access timestamps to the output\n"));
568 if (DEFAULT_AR_DETERMINISTIC
)
569 fprintf (stream
, _("\
570 -D --enable-deterministic-archives\n\
571 Produce deterministic output when stripping archives (default)\n\
572 -U --disable-deterministic-archives\n\
573 Disable -D behavior\n"));
575 fprintf (stream
, _("\
576 -D --enable-deterministic-archives\n\
577 Produce deterministic output when stripping archives\n\
578 -U --disable-deterministic-archives\n\
579 Disable -D behavior (default)\n"));
580 fprintf (stream
, _("\
581 -j --only-section <name> Only copy section <name> into the output\n\
582 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
583 -R --remove-section <name> Remove section <name> from the output\n\
584 --remove-relocations <name> Remove relocations from section <name>\n\
585 -S --strip-all Remove all symbol and relocation information\n\
586 -g --strip-debug Remove all debugging symbols & sections\n\
587 --strip-dwo Remove all DWO sections\n\
588 --strip-unneeded Remove all symbols not needed by relocations\n\
589 -N --strip-symbol <name> Do not copy symbol <name>\n\
590 --strip-unneeded-symbol <name>\n\
591 Do not copy symbol <name> unless needed by\n\
593 --only-keep-debug Strip everything but the debug information\n\
594 --extract-dwo Copy only DWO sections\n\
595 --extract-symbol Remove section contents but keep symbols\n\
596 --keep-section <name> Do not strip section <name>\n\
597 -K --keep-symbol <name> Do not strip symbol <name>\n\
598 --keep-file-symbols Do not strip file symbol(s)\n\
599 --localize-hidden Turn all ELF hidden symbols into locals\n\
600 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
601 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
602 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
603 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
604 --weaken Force all global symbols to be marked as weak\n\
605 -w --wildcard Permit wildcard in symbol comparison\n\
606 -x --discard-all Remove all non-global symbols\n\
607 -X --discard-locals Remove any compiler-generated symbols\n\
608 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
609 --interleave-width <number> Set N for --interleave\n\
610 -b --byte <num> Select byte <num> in every interleaved block\n\
611 --gap-fill <val> Fill gaps between sections with <val>\n\
612 --pad-to <addr> Pad the last section up to address <addr>\n\
613 --set-start <addr> Set the start address to <addr>\n\
614 {--change-start|--adjust-start} <incr>\n\
615 Add <incr> to the start address\n\
616 {--change-addresses|--adjust-vma} <incr>\n\
617 Add <incr> to LMA, VMA and start addresses\n\
618 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
619 Change LMA and VMA of section <name> by <val>\n\
620 --change-section-lma <name>{=|+|-}<val>\n\
621 Change the LMA of section <name> by <val>\n\
622 --change-section-vma <name>{=|+|-}<val>\n\
623 Change the VMA of section <name> by <val>\n\
624 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
625 Warn if a named section does not exist\n\
626 --set-section-flags <name>=<flags>\n\
627 Set section <name>'s properties to <flags>\n\
628 --set-section-alignment <name>=<align>\n\
629 Set section <name>'s alignment to <align> bytes\n\
630 --add-section <name>=<file> Add section <name> found in <file> to output\n\
631 --update-section <name>=<file>\n\
632 Update contents of section <name> with\n\
633 contents found in <file>\n\
634 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
635 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
636 --long-section-names {enable|disable|keep}\n\
637 Handle long section names in Coff objects.\n\
638 --change-leading-char Force output format's leading character style\n\
639 --remove-leading-char Remove leading character from global symbols\n\
640 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
641 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
642 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
644 --srec-len <number> Restrict the length of generated Srecords\n\
645 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
646 --strip-symbols <file> -N for all symbols listed in <file>\n\
647 --strip-unneeded-symbols <file>\n\
648 --strip-unneeded-symbol for all symbols listed\n\
650 --keep-symbols <file> -K for all symbols listed in <file>\n\
651 --localize-symbols <file> -L for all symbols listed in <file>\n\
652 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
653 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
654 --weaken-symbols <file> -W for all symbols listed in <file>\n\
655 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
656 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
657 --writable-text Mark the output text as writable\n\
658 --readonly-text Make the output text write protected\n\
659 --pure Mark the output file as demand paged\n\
660 --impure Mark the output file as impure\n\
661 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
662 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
663 --prefix-alloc-sections <prefix>\n\
664 Add <prefix> to start of every allocatable\n\
666 --file-alignment <num> Set PE file alignment to <num>\n\
667 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
669 --image-base <address> Set PE image base to <address>\n\
670 --section-alignment <num> Set PE section alignment to <num>\n\
671 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
673 --subsystem <name>[:<version>]\n\
674 Set PE subsystem to <name> [& <version>]\n\
675 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
676 Compress DWARF debug sections using zlib\n\
677 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
678 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
680 --verilog-data-width <number> Specifies data width, in bytes, for verilog output\n\
681 -M --merge-notes Remove redundant entries in note sections\n\
682 --no-merge-notes Do not attempt to remove redundant notes (default)\n\
683 -v --verbose List all object files modified\n\
684 @<file> Read options from <file>\n\
685 -V --version Display this program's version number\n\
686 -h --help Display this output\n\
687 --info List object formats & architectures supported\n\
689 list_supported_targets (program_name
, stream
);
690 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
691 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
695 ATTRIBUTE_NORETURN
static void
696 strip_usage (FILE *stream
, int exit_status
)
698 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
699 fprintf (stream
, _(" Removes symbols and sections from files\n"));
700 fprintf (stream
, _(" The options are:\n"));
701 fprintf (stream
, _("\
702 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
703 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
704 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
705 -p --preserve-dates Copy modified/access timestamps to the output\n\
707 if (DEFAULT_AR_DETERMINISTIC
)
708 fprintf (stream
, _("\
709 -D --enable-deterministic-archives\n\
710 Produce deterministic output when stripping archives (default)\n\
711 -U --disable-deterministic-archives\n\
712 Disable -D behavior\n"));
714 fprintf (stream
, _("\
715 -D --enable-deterministic-archives\n\
716 Produce deterministic output when stripping archives\n\
717 -U --disable-deterministic-archives\n\
718 Disable -D behavior (default)\n"));
719 fprintf (stream
, _("\
720 -R --remove-section=<name> Also remove section <name> from the output\n\
721 --remove-relocations <name> Remove relocations from section <name>\n\
722 -s --strip-all Remove all symbol and relocation information\n\
723 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
724 --strip-dwo Remove all DWO sections\n\
725 --strip-unneeded Remove all symbols not needed by relocations\n\
726 --only-keep-debug Strip everything but the debug information\n\
727 -M --merge-notes Remove redundant entries in note sections (default)\n\
728 --no-merge-notes Do not attempt to remove redundant notes\n\
729 -N --strip-symbol=<name> Do not copy symbol <name>\n\
730 --keep-section=<name> Do not strip section <name>\n\
731 -K --keep-symbol=<name> Do not strip symbol <name>\n\
732 --keep-file-symbols Do not strip file symbol(s)\n\
733 -w --wildcard Permit wildcard in symbol comparison\n\
734 -x --discard-all Remove all non-global symbols\n\
735 -X --discard-locals Remove any compiler-generated symbols\n\
736 -v --verbose List all object files modified\n\
737 -V --version Display this program's version number\n\
738 -h --help Display this output\n\
739 --info List object formats & architectures supported\n\
740 -o <file> Place stripped output into <file>\n\
743 list_supported_targets (program_name
, stream
);
744 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
745 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
749 /* Parse section flags into a flagword, with a fatal error if the
750 string can't be parsed. */
753 parse_flags (const char *s
)
763 snext
= strchr (s
, ',');
773 #define PARSE_FLAG(fname,fval) \
774 else if (strncasecmp (fname, s, len) == 0) ret |= fval
775 PARSE_FLAG ("alloc", SEC_ALLOC
);
776 PARSE_FLAG ("load", SEC_LOAD
);
777 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
778 PARSE_FLAG ("readonly", SEC_READONLY
);
779 PARSE_FLAG ("debug", SEC_DEBUGGING
);
780 PARSE_FLAG ("code", SEC_CODE
);
781 PARSE_FLAG ("data", SEC_DATA
);
782 PARSE_FLAG ("rom", SEC_ROM
);
783 PARSE_FLAG ("exclude", SEC_EXCLUDE
);
784 PARSE_FLAG ("share", SEC_COFF_SHARED
);
785 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
786 PARSE_FLAG ("merge", SEC_MERGE
);
787 PARSE_FLAG ("strings", SEC_STRINGS
);
793 copy
= (char *) xmalloc (len
+ 1);
794 strncpy (copy
, s
, len
);
796 non_fatal (_("unrecognized section flag `%s'"), copy
);
797 fatal (_("supported flags: %s"),
798 "alloc, load, noload, readonly, debug, code, data, rom, exclude, share, contents, merge, strings");
808 /* Parse symbol flags into a flagword, with a fatal error if the
809 string can't be parsed. */
812 parse_symflags (const char *s
, const char **other
)
822 snext
= strchr (s
, ',');
831 #define PARSE_FLAG(fname, fval) \
832 else if (len == sizeof fname - 1 \
833 && strncasecmp (fname, s, len) == 0) \
836 #define PARSE_OTHER(fname, fval) \
837 else if (len >= sizeof fname \
838 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
839 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
842 PARSE_FLAG ("local", BSF_LOCAL
);
843 PARSE_FLAG ("global", BSF_GLOBAL
);
844 PARSE_FLAG ("export", BSF_EXPORT
);
845 PARSE_FLAG ("debug", BSF_DEBUGGING
);
846 PARSE_FLAG ("function", BSF_FUNCTION
);
847 PARSE_FLAG ("weak", BSF_WEAK
);
848 PARSE_FLAG ("section", BSF_SECTION_SYM
);
849 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
850 PARSE_FLAG ("warning", BSF_WARNING
);
851 PARSE_FLAG ("indirect", BSF_INDIRECT
);
852 PARSE_FLAG ("file", BSF_FILE
);
853 PARSE_FLAG ("object", BSF_OBJECT
);
854 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
855 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
856 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
857 PARSE_OTHER ("before=", *other
);
865 copy
= (char *) xmalloc (len
+ 1);
866 strncpy (copy
, s
, len
);
868 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
869 fatal (_("supported flags: %s"),
870 "local, global, export, debug, function, weak, section, "
871 "constructor, warning, indirect, file, object, synthetic, "
872 "indirect-function, unique-object, before=<othersym>");
882 /* Find and optionally add an entry in the change_sections list.
884 We need to be careful in how we match section names because of the support
885 for wildcard characters. For example suppose that the user has invoked
888 --set-section-flags .debug_*=debug
889 --set-section-flags .debug_str=readonly,debug
890 --change-section-address .debug_*ranges=0x1000
892 With the idea that all debug sections will receive the DEBUG flag, the
893 .debug_str section will also receive the READONLY flag and the
894 .debug_ranges and .debug_aranges sections will have their address set to
895 0x1000. (This may not make much sense, but it is just an example).
897 When adding the section name patterns to the section list we need to make
898 sure that previous entries do not match with the new entry, unless the
899 match is exact. (In which case we assume that the user is overriding
900 the previous entry with the new context).
902 When matching real section names to the section list we make use of the
903 wildcard characters, but we must do so in context. Eg if we are setting
904 section addresses then we match for .debug_ranges but not for .debug_info.
906 Finally, if ADD is false and we do find a match, we mark the section list
909 static struct section_list
*
910 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
912 struct section_list
*p
, *match
= NULL
;
914 /* assert ((context & ((1 << 7) - 1)) != 0); */
916 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
920 if (strcmp (p
->pattern
, name
) == 0)
922 /* Check for context conflicts. */
923 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
924 && (context
& SECTION_CONTEXT_COPY
))
925 || ((context
& SECTION_CONTEXT_REMOVE
)
926 && (p
->context
& SECTION_CONTEXT_COPY
)))
927 fatal (_("error: %s both copied and removed"), name
);
929 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
930 && (context
& SECTION_CONTEXT_ALTER_VMA
))
931 || ((context
& SECTION_CONTEXT_SET_VMA
)
932 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
933 fatal (_("error: %s both sets and alters VMA"), name
);
935 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
936 && (context
& SECTION_CONTEXT_ALTER_LMA
))
937 || ((context
& SECTION_CONTEXT_SET_LMA
)
938 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
939 fatal (_("error: %s both sets and alters LMA"), name
);
941 /* Extend the context. */
942 p
->context
|= context
;
946 /* If we are not adding a new name/pattern then
947 only check for a match if the context applies. */
948 else if (p
->context
& context
)
950 /* We could check for the presence of wildchar characters
951 first and choose between calling strcmp and fnmatch,
952 but is that really worth it ? */
953 if (p
->pattern
[0] == '!')
955 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
963 if (fnmatch (p
->pattern
, name
, 0) == 0)
979 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
982 p
->context
= context
;
987 p
->next
= change_sections
;
993 /* S1 is the entry node already in the table, S2 is the key node. */
996 eq_string_redefnode (const void *s1
, const void *s2
)
998 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
999 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
1000 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
1003 /* P is redefine node. Hash value is generated from its "source" filed. */
1006 htab_hash_redefnode (const void *p
)
1008 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
1009 return htab_hash_string (redefnode
->source
);
1012 /* Create hashtab used for redefine node. */
1015 create_symbol2redef_htab (void)
1017 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
1021 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
1024 eq_string (const void *s1
, const void *s2
)
1026 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
1030 create_symbol_htab (void)
1032 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
1036 create_symbol_htabs (void)
1038 strip_specific_htab
= create_symbol_htab ();
1039 strip_unneeded_htab
= create_symbol_htab ();
1040 keep_specific_htab
= create_symbol_htab ();
1041 localize_specific_htab
= create_symbol_htab ();
1042 globalize_specific_htab
= create_symbol_htab ();
1043 keepglobal_specific_htab
= create_symbol_htab ();
1044 weaken_specific_htab
= create_symbol_htab ();
1045 redefine_specific_htab
= create_symbol2redef_htab ();
1046 /* As there is no bidirectional hash table in libiberty, need a reverse table
1047 to check duplicated target string. */
1048 redefine_specific_reverse_htab
= create_symbol_htab ();
1051 /* Add a symbol to strip_specific_list. */
1054 add_specific_symbol (const char *name
, htab_t htab
)
1056 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1059 /* Like add_specific_symbol, but the element type is void *. */
1062 add_specific_symbol_node (const void *node
, htab_t htab
)
1064 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1067 /* Add symbols listed in `filename' to strip_specific_list. */
1069 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1070 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1073 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1079 unsigned int line_count
;
1081 size
= get_file_size (filename
);
1088 buffer
= (char *) xmalloc (size
+ 2);
1089 f
= fopen (filename
, FOPEN_RT
);
1091 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1093 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1094 fatal (_("%s: fread failed"), filename
);
1097 buffer
[size
] = '\n';
1098 buffer
[size
+ 1] = '\0';
1102 for (line
= buffer
; * line
!= '\0'; line
++)
1107 int finished
= FALSE
;
1109 for (eol
= line
;; eol
++)
1115 /* Cope with \n\r. */
1123 /* Cope with \r\n. */
1134 /* Line comment, Terminate the line here, in case a
1135 name is present and then allow the rest of the
1136 loop to find the real end of the line. */
1148 /* A name may now exist somewhere between 'line' and 'eol'.
1149 Strip off leading whitespace and trailing whitespace,
1150 then add it to the list. */
1151 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1153 for (name_end
= name
;
1154 (! IS_WHITESPACE (* name_end
))
1155 && (! IS_LINE_TERMINATOR (* name_end
));
1159 if (! IS_LINE_TERMINATOR (* name_end
))
1163 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1166 if (! IS_LINE_TERMINATOR (* extra
))
1167 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1168 filename
, line_count
);
1173 if (name_end
> name
)
1174 add_specific_symbol (name
, htab
);
1176 /* Advance line pointer to end of line. The 'eol ++' in the for
1177 loop above will then advance us to the start of the next line. */
1182 /* Do not free the buffer. Parts of it will have been referenced
1183 in the calls to add_specific_symbol. */
1187 /* See whether a symbol should be stripped or kept
1188 based on strip_specific_list and keep_symbols. */
1191 is_specified_symbol_predicate (void **slot
, void *data
)
1193 struct is_specified_symbol_predicate_data
*d
=
1194 (struct is_specified_symbol_predicate_data
*) data
;
1195 const char *slot_name
= (char *) *slot
;
1197 if (*slot_name
!= '!')
1199 if (! fnmatch (slot_name
, d
->name
, 0))
1202 /* Continue traversal, there might be a non-match rule. */
1208 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1211 /* Stop traversal. */
1216 /* Continue traversal. */
1221 is_specified_symbol (const char *name
, htab_t htab
)
1225 struct is_specified_symbol_predicate_data data
;
1230 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1235 return htab_find (htab
, name
) != NULL
;
1238 /* Return a pointer to the symbol used as a signature for GROUP. */
1241 group_signature (asection
*group
)
1243 bfd
*abfd
= group
->owner
;
1244 Elf_Internal_Shdr
*ghdr
;
1246 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1250 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1253 ghdr
= &elf_section_data (group
)->this_hdr
;
1254 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1256 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1257 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1259 if (ghdr
->sh_info
> 0
1260 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1261 return isympp
[ghdr
->sh_info
- 1];
1266 /* Return TRUE if the section is a DWO section. */
1269 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1271 const char *name
= bfd_section_name (sec
);
1272 int len
= strlen (name
);
1274 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1277 /* Return TRUE if section SEC is in the update list. */
1280 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1282 if (update_sections
!= NULL
)
1284 struct section_add
*pupdate
;
1286 for (pupdate
= update_sections
;
1288 pupdate
= pupdate
->next
)
1290 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1299 is_mergeable_note_section (bfd
* abfd
, asection
* sec
)
1302 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1303 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1304 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1305 We should add support for more note types. */
1306 && ((elf_section_data (sec
)->this_hdr
.sh_flags
& SHF_GNU_BUILD_NOTE
) != 0
1307 /* Old versions of GAS (prior to 2.27) could not set the section
1308 flags to OS-specific values, so we also accept sections that
1309 start with the expected name. */
1310 || (CONST_STRNEQ (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
))))
1316 /* See if a non-group section is being removed. */
1319 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1321 if (find_section_list (bfd_section_name (sec
), FALSE
, SECTION_CONTEXT_KEEP
)
1325 if (sections_removed
|| sections_copied
)
1327 struct section_list
*p
;
1328 struct section_list
*q
;
1330 p
= find_section_list (bfd_section_name (sec
), FALSE
,
1331 SECTION_CONTEXT_REMOVE
);
1332 q
= find_section_list (bfd_section_name (sec
), FALSE
,
1333 SECTION_CONTEXT_COPY
);
1336 fatal (_("error: section %s matches both remove and copy options"),
1337 bfd_section_name (sec
));
1338 if (p
&& is_update_section (abfd
, sec
))
1339 fatal (_("error: section %s matches both update and remove options"),
1340 bfd_section_name (sec
));
1344 if (sections_copied
&& q
== NULL
)
1348 if ((bfd_section_flags (sec
) & SEC_DEBUGGING
) != 0)
1350 if (strip_symbols
== STRIP_DEBUG
1351 || strip_symbols
== STRIP_UNNEEDED
1352 || strip_symbols
== STRIP_ALL
1353 || discard_locals
== LOCALS_ALL
1354 || convert_debugging
)
1356 /* By default we don't want to strip .reloc section.
1357 This section has for pe-coff special meaning. See
1358 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1359 if (strcmp (bfd_section_name (sec
), ".reloc") != 0)
1363 if (strip_symbols
== STRIP_DWO
)
1364 return is_dwo_section (abfd
, sec
);
1366 if (strip_symbols
== STRIP_NONDEBUG
)
1370 if (strip_symbols
== STRIP_NONDWO
)
1371 return !is_dwo_section (abfd
, sec
);
1376 /* See if a section is being removed. */
1379 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1381 if (is_strip_section_1 (abfd
, sec
))
1384 if ((bfd_section_flags (sec
) & SEC_GROUP
) != 0)
1388 asection
*elt
, *first
;
1390 gsym
= group_signature (sec
);
1391 /* Strip groups without a valid signature. */
1396 If we are going to strip the group signature symbol, then
1397 strip the group section too. */
1399 if ((strip_symbols
== STRIP_ALL
1400 && !is_specified_symbol (gname
, keep_specific_htab
))
1401 || is_specified_symbol (gname
, strip_specific_htab
))
1404 /* Remove the group section if all members are removed. */
1405 first
= elt
= elf_next_in_group (sec
);
1408 if (!is_strip_section_1 (abfd
, elt
))
1410 elt
= elf_next_in_group (elt
);
1422 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1424 /* Always keep ELF note sections. */
1425 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
1426 return elf_section_type (isection
) == SHT_NOTE
;
1428 /* Always keep the .buildid section for PE/COFF.
1430 Strictly, this should be written "always keep the section storing the debug
1431 directory", but that may be the .text section for objects produced by some
1432 tools, which it is not sensible to keep. */
1433 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
)
1434 return strcmp (bfd_section_name (isection
), ".buildid") == 0;
1439 /* Return true if SYM is a hidden symbol. */
1442 is_hidden_symbol (asymbol
*sym
)
1444 elf_symbol_type
*elf_sym
;
1446 elf_sym
= elf_symbol_from (sym
);
1447 if (elf_sym
!= NULL
)
1448 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1457 /* Empty name is hopefully never a valid symbol name. */
1458 static const char * empty_name
= "";
1461 need_sym_before (struct addsym_node
**node
, const char *sym
)
1464 struct addsym_node
*ptr
= add_sym_list
;
1466 /* 'othersym' symbols are at the front of the list. */
1467 for (count
= 0; count
< add_symbols
; count
++)
1471 if (ptr
->othersym
== empty_name
)
1473 else if (strcmp (ptr
->othersym
, sym
) == 0)
1475 free ((char *) ptr
->othersym
);
1476 ptr
->othersym
= empty_name
;
1486 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1488 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1490 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1491 sym
->value
= ptr
->symval
;
1492 sym
->flags
= ptr
->flags
;
1495 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1497 fatal (_("Section %s not found"), ptr
->section
);
1501 sym
->section
= bfd_abs_section_ptr
;
1505 /* Choose which symbol entries to copy; put the result in OSYMS.
1506 We don't copy in place, because that confuses the relocs.
1507 Return the number of symbols to print. */
1510 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1511 asymbol
**isyms
, long symcount
)
1513 asymbol
**from
= isyms
, **to
= osyms
;
1514 long src_count
= 0, dst_count
= 0;
1515 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1517 for (; src_count
< symcount
; src_count
++)
1519 asymbol
*sym
= from
[src_count
];
1520 flagword flags
= sym
->flags
;
1521 char *name
= (char *) bfd_asymbol_name (sym
);
1523 bfd_boolean used_in_reloc
= FALSE
;
1524 bfd_boolean undefined
;
1525 bfd_boolean rem_leading_char
;
1526 bfd_boolean add_leading_char
;
1528 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1532 struct addsym_node
*ptr
;
1534 if (need_sym_before (&ptr
, name
))
1535 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1538 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1542 new_name
= (char *) lookup_sym_redefinition (name
);
1543 if (new_name
== name
1544 && (flags
& BSF_SECTION_SYM
) != 0)
1545 new_name
= (char *) find_section_rename (name
, NULL
);
1546 bfd_set_asymbol_name (sym
, new_name
);
1550 /* Check if we will remove the current leading character. */
1553 && name
[0] == bfd_get_symbol_leading_char (abfd
)
1554 && (change_leading_char
1555 || (remove_leading_char
1556 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1558 || bfd_is_com_section (bfd_asymbol_section (sym
))))));
1560 /* Check if we will add a new leading character. */
1563 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1564 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1565 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1567 /* Short circuit for change_leading_char if we can do it in-place. */
1568 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1570 name
[0] = bfd_get_symbol_leading_char (obfd
);
1571 bfd_set_asymbol_name (sym
, name
);
1572 rem_leading_char
= FALSE
;
1573 add_leading_char
= FALSE
;
1576 /* Remove leading char. */
1577 if (rem_leading_char
)
1578 bfd_set_asymbol_name (sym
, ++name
);
1580 /* Add new leading char and/or prefix. */
1581 if (add_leading_char
|| prefix_symbols_string
)
1584 size_t len
= strlen (name
) + 1;
1586 if (add_leading_char
)
1588 if (prefix_symbols_string
)
1589 len
+= strlen (prefix_symbols_string
);
1591 ptr
= n
= (char *) xmalloc (len
);
1592 if (add_leading_char
)
1593 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1595 if (prefix_symbols_string
)
1597 strcpy (ptr
, prefix_symbols_string
);
1598 ptr
+= strlen (prefix_symbols_string
);
1602 bfd_set_asymbol_name (sym
, n
);
1606 if (strip_symbols
== STRIP_ALL
)
1608 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1609 || ((flags
& BSF_SECTION_SYM
) != 0
1610 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1614 used_in_reloc
= TRUE
;
1616 else if (relocatable
/* Relocatable file. */
1617 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1618 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1620 else if (bfd_decode_symclass (sym
) == 'I')
1621 /* Global symbols in $idata sections need to be retained
1622 even if relocatable is FALSE. External users of the
1623 library containing the $idata section may reference these
1626 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1627 || (flags
& BSF_WEAK
) != 0
1629 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1630 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1631 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1632 keep
= (strip_symbols
!= STRIP_DEBUG
1633 && strip_symbols
!= STRIP_UNNEEDED
1634 && ! convert_debugging
);
1635 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1636 /* COMDAT sections store special information in local
1637 symbols, so we cannot risk stripping any of them. */
1639 else /* Local symbol. */
1640 keep
= (strip_symbols
!= STRIP_UNNEEDED
1641 && (discard_locals
!= LOCALS_ALL
1642 && (discard_locals
!= LOCALS_START_L
1643 || ! bfd_is_local_label (abfd
, sym
))));
1645 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1647 /* There are multiple ways to set 'keep' above, but if it
1648 was the relocatable symbol case, then that's an error. */
1651 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1659 && !(flags
& BSF_KEEP
)
1660 && is_specified_symbol (name
, strip_unneeded_htab
))
1664 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1665 || is_specified_symbol (name
, keep_specific_htab
)))
1668 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1673 if ((flags
& BSF_GLOBAL
) != 0
1674 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1676 sym
->flags
&= ~ BSF_GLOBAL
;
1677 sym
->flags
|= BSF_WEAK
;
1681 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1682 && (is_specified_symbol (name
, localize_specific_htab
)
1683 || (htab_elements (keepglobal_specific_htab
) != 0
1684 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1685 || (localize_hidden
&& is_hidden_symbol (sym
))))
1687 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1688 sym
->flags
|= BSF_LOCAL
;
1692 && (flags
& BSF_LOCAL
)
1693 && is_specified_symbol (name
, globalize_specific_htab
))
1695 sym
->flags
&= ~ BSF_LOCAL
;
1696 sym
->flags
|= BSF_GLOBAL
;
1699 to
[dst_count
++] = sym
;
1704 struct addsym_node
*ptr
= add_sym_list
;
1706 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1710 if (ptr
->othersym
!= empty_name
)
1711 fatal (_("'before=%s' not found"), ptr
->othersym
);
1714 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1720 to
[dst_count
] = NULL
;
1725 /* Find the redefined name of symbol SOURCE. */
1728 lookup_sym_redefinition (const char *source
)
1730 struct redefine_node key_node
= {(char *) source
, NULL
};
1731 struct redefine_node
*redef_node
1732 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1734 return redef_node
== NULL
? source
: redef_node
->target
;
1737 /* Insert a node into symbol redefine hash tabel. */
1740 add_redefine_and_check (const char *cause
, const char *source
,
1743 struct redefine_node
*new_node
1744 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1746 new_node
->source
= strdup (source
);
1747 new_node
->target
= strdup (target
);
1749 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1750 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1753 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1754 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1757 /* Insert the NEW_NODE into hash table for quick search. */
1758 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1760 /* Insert the target string into the reverse hash table, this is needed for
1761 duplicated target string check. */
1762 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1766 /* Handle the --redefine-syms option. Read lines containing "old new"
1767 from the file, and add them to the symbol redefine list. */
1770 add_redefine_syms_file (const char *filename
)
1779 file
= fopen (filename
, "r");
1781 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1782 filename
, strerror (errno
));
1785 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1793 /* Collect the input symbol name. */
1794 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1802 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1810 /* Eat white space between the symbol names. */
1811 while (IS_WHITESPACE (c
))
1813 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1818 /* Collect the output symbol name. */
1820 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1828 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1836 /* Eat white space at end of line. */
1837 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1842 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1843 || c
== '\n' || c
== EOF
)
1846 /* Append the redefinition to the list. */
1848 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1859 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1861 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1862 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1865 /* Eat the rest of the line and finish it. */
1866 while (c
!= '\n' && c
!= EOF
)
1872 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1878 /* Copy unknown object file IBFD onto OBFD.
1879 Returns TRUE upon success, FALSE otherwise. */
1882 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1890 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1892 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1899 non_fatal (_("stat returns negative size for `%s'"),
1900 bfd_get_archive_filename (ibfd
));
1904 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1906 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1911 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1912 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1914 cbuf
= (char *) xmalloc (BUFSIZE
);
1916 while (ncopied
< size
)
1918 tocopy
= size
- ncopied
;
1919 if (tocopy
> BUFSIZE
)
1922 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1923 != (bfd_size_type
) tocopy
)
1925 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1930 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1931 != (bfd_size_type
) tocopy
)
1933 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1941 /* We should at least to be able to read it back when copying an
1942 unknown object in an archive. */
1943 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1948 typedef struct objcopy_internal_note
1950 Elf_Internal_Note note
;
1951 unsigned long padded_namesz
;
1954 } objcopy_internal_note
;
1956 #define DEBUG_MERGE 0
1959 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1961 #define merge_debug(format, ...)
1964 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
1967 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
1968 objcopy_internal_note
* pnote2
)
1970 if (pnote1
->end
< pnote2
->start
)
1971 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1972 Really we should extract the alignment of the section
1973 covered by the notes. */
1974 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1976 if (pnote2
->end
< pnote2
->start
)
1977 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
1979 if (pnote1
->end
< pnote2
->end
)
1982 if (pnote2
->end
< pnote1
->end
)
1988 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
1991 contained_by (objcopy_internal_note
* needle
,
1992 objcopy_internal_note
* haystack
)
1994 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
1998 is_open_note (objcopy_internal_note
* pnote
)
2000 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2004 is_func_note (objcopy_internal_note
* pnote
)
2006 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2010 is_deleted_note (objcopy_internal_note
* pnote
)
2012 return pnote
->note
.type
== 0;
2016 is_version_note (objcopy_internal_note
* pnote
)
2018 return (pnote
->note
.namesz
> 4
2019 && pnote
->note
.namedata
[0] == 'G'
2020 && pnote
->note
.namedata
[1] == 'A'
2021 && pnote
->note
.namedata
[2] == '$'
2022 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2026 is_64bit (bfd
* abfd
)
2028 /* Should never happen, but let's be paranoid. */
2029 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2032 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2035 /* This sorting function is used to get the notes into an order
2036 that makes merging easy. */
2039 compare_gnu_build_notes (const void * data1
, const void * data2
)
2041 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2042 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2044 /* Sort notes based upon the attribute they record. */
2045 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2046 pnote2
->note
.namedata
+ 3,
2047 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2048 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2052 if (pnote1
->end
< pnote2
->start
)
2054 if (pnote1
->start
> pnote2
->end
)
2057 /* Overlaps - we should merge the two ranges. */
2058 if (pnote1
->start
< pnote2
->start
)
2060 if (pnote1
->end
> pnote2
->end
)
2062 if (pnote1
->end
< pnote2
->end
)
2065 /* Put OPEN notes before function notes. */
2066 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2068 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2074 /* This sorting function is used to get the notes into an order
2075 that makes eliminating address ranges easier. */
2078 sort_gnu_build_notes (const void * data1
, const void * data2
)
2080 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2081 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2083 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2085 /* Move deleted notes to the end. */
2086 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2089 /* Move OPEN notes to the start. */
2090 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2093 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2096 return 1; /* 1: F 2: O */
2099 /* Sort by starting address. */
2100 if (pnote1
->start
< pnote2
->start
)
2102 if (pnote1
->start
> pnote2
->start
)
2105 /* Then by end address (bigger range first). */
2106 if (pnote1
->end
> pnote2
->end
)
2108 if (pnote1
->end
< pnote2
->end
)
2111 /* Then by attribute type. */
2112 if (pnote1
->note
.namesz
> 4
2113 && pnote2
->note
.namesz
> 4
2114 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2115 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2120 /* Merge the notes on SEC, removing redundant entries.
2121 Returns the new, smaller size of the section upon success. */
2123 static bfd_size_type
2124 merge_gnu_build_notes (bfd
* abfd
,
2127 bfd_byte
* contents
)
2129 objcopy_internal_note
* pnotes_end
;
2130 objcopy_internal_note
* pnotes
= NULL
;
2131 objcopy_internal_note
* pnote
;
2132 bfd_size_type remain
= size
;
2133 unsigned version_1_seen
= 0;
2134 unsigned version_2_seen
= 0;
2135 unsigned version_3_seen
= 0;
2136 const char * err
= NULL
;
2137 bfd_byte
* in
= contents
;
2138 unsigned long previous_func_start
= 0;
2139 unsigned long previous_open_start
= 0;
2140 unsigned long previous_func_end
= 0;
2141 unsigned long previous_open_end
= 0;
2144 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2150 /* If there are relocs associated with this section then we
2151 cannot safely merge it. */
2152 relpp
= (arelent
**) xmalloc (relsize
);
2153 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2158 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2159 bfd_get_filename (abfd
), bfd_section_name (sec
));
2164 /* Make a copy of the notes and convert to our internal format.
2165 Minimum size of a note is 12 bytes. Also locate the version
2166 notes and check them. */
2167 pnote
= pnotes
= (objcopy_internal_note
*)
2168 xcalloc ((size
/ 12), sizeof (* pnote
));
2169 while (remain
>= 12)
2173 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2174 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2175 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2176 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2178 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2180 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2184 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2185 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2187 err
= _("corrupt GNU build attribute note: wrong note type");
2191 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2193 err
= _("corrupt GNU build attribute note: note too big");
2197 if (pnote
->note
.namesz
< 2)
2199 err
= _("corrupt GNU build attribute note: name too small");
2203 pnote
->note
.namedata
= (char *)(in
+ 12);
2204 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2206 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2207 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2209 if (pnote
->note
.namesz
> 2
2210 && pnote
->note
.namedata
[0] == '$'
2211 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2212 && pnote
->note
.namedata
[2] == '1')
2214 else if (is_version_note (pnote
))
2216 if (pnote
->note
.namedata
[4] == '2')
2218 else if (pnote
->note
.namedata
[4] == '3')
2222 err
= _("corrupt GNU build attribute note: unsupported version");
2227 switch (pnote
->note
.descsz
)
2234 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2235 /* FIXME: For version 1 and 2 notes we should try to
2236 calculate the end address by finding a symbol whose
2237 value is START, and then adding in its size.
2239 For now though, since v1 and v2 was not intended to
2240 handle gaps, we chose an artificially large end
2246 if (! is_64bit (abfd
))
2248 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2249 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2253 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2254 /* FIXME: For version 1 and 2 notes we should try to
2255 calculate the end address by finding a symbol whose
2256 value is START, and then adding in its size.
2258 For now though, since v1 and v2 was not intended to
2259 handle gaps, we chose an artificially large end
2266 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2267 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2271 err
= _("corrupt GNU build attribute note: bad description size");
2275 if (is_open_note (pnote
))
2278 previous_open_start
= start
;
2280 pnote
->start
= previous_open_start
;
2283 previous_open_end
= end
;
2285 pnote
->end
= previous_open_end
;
2290 previous_func_start
= start
;
2292 pnote
->start
= previous_func_start
;
2295 previous_func_end
= end
;
2297 pnote
->end
= previous_func_end
;
2300 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2302 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2311 /* Check that the notes are valid. */
2314 err
= _("corrupt GNU build attribute notes: excess data at end");
2318 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2321 err
= _("bad GNU build attribute notes: no known versions detected");
2324 /* This happens with glibc. No idea why. */
2325 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2326 bfd_get_filename (abfd
), bfd_section_name (sec
));
2331 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2332 || (version_1_seen
> 0 && version_3_seen
> 0)
2333 || (version_2_seen
> 0 && version_3_seen
> 0))
2335 err
= _("bad GNU build attribute notes: multiple different versions");
2339 /* We are now only supporting the merging v3+ notes
2340 - it makes things much simpler. */
2341 if (version_3_seen
== 0)
2343 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2347 merge_debug ("Merging section %s which contains %ld notes\n",
2348 sec
->name
, pnotes_end
- pnotes
);
2350 /* Sort the notes. */
2351 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2352 compare_gnu_build_notes
);
2355 merge_debug ("Results of initial sort:\n");
2356 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2357 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2358 (pnote
->note
.namedata
- (char *) contents
) - 12,
2359 pnote
->start
, pnote
->end
,
2361 pnote
->note
.namedata
[3],
2366 /* Now merge the notes. The rules are:
2367 1. If a note has a zero range, it can be eliminated.
2368 2. If two notes have the same namedata then:
2369 2a. If one note's range is fully covered by the other note
2370 then it can be deleted.
2371 2b. If one note's range partially overlaps or adjoins the
2372 other note then if they are both of the same type (open
2373 or func) then they can be merged and one deleted. If
2374 they are of different types then they cannot be merged. */
2375 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2377 /* Skip already deleted notes.
2378 FIXME: Can this happen ? We are scanning forwards and
2379 deleting backwards after all. */
2380 if (is_deleted_note (pnote
))
2383 /* Rule 1 - delete 0-range notes. */
2384 if (pnote
->start
== pnote
->end
)
2386 merge_debug ("Delete note at offset %#08lx - empty range\n",
2387 (pnote
->note
.namedata
- (char *) contents
) - 12);
2388 pnote
->note
.type
= 0;
2393 objcopy_internal_note
* back
;
2395 /* Rule 2: Check to see if there is an identical previous note. */
2396 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2398 if (is_deleted_note (back
))
2401 /* Our sorting function should have placed all identically
2402 attributed notes together, so if we see a note of a different
2403 attribute type stop searching. */
2404 if (back
->note
.namesz
!= pnote
->note
.namesz
2405 || memcmp (back
->note
.namedata
,
2406 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2409 if (back
->start
== pnote
->start
2410 && back
->end
== pnote
->end
)
2412 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2413 (pnote
->note
.namedata
- (char *) contents
) - 12,
2414 (back
->note
.namedata
- (char *) contents
) - 12);
2415 pnote
->note
.type
= 0;
2420 if (contained_by (pnote
, back
))
2422 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2423 (pnote
->note
.namedata
- (char *) contents
) - 12,
2424 (back
->note
.namedata
- (char *) contents
) - 12);
2425 pnote
->note
.type
= 0;
2430 /* This should not happen as we have sorted the
2431 notes with earlier starting addresses first. */
2432 if (contained_by (back
, pnote
))
2433 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2437 if (overlaps_or_adjoins (back
, pnote
)
2438 && is_func_note (back
) == is_func_note (pnote
))
2440 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2441 (pnote
->note
.namedata
- (char *) contents
) - 12,
2442 (back
->note
.namedata
- (char *) contents
) - 12);
2444 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2445 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2446 pnote
->note
.type
= 0;
2450 /* Don't scan too far back however. */
2453 /* FIXME: Not sure if this can ever be triggered. */
2454 merge_debug ("ITERATION LIMIT REACHED\n");
2459 if (! is_deleted_note (pnote
))
2460 merge_debug ("Unable to do anything with note at %#08lx\n",
2461 (pnote
->note
.namedata
- (char *) contents
) - 12);
2465 /* Resort the notes. */
2466 merge_debug ("Final sorting of notes\n");
2467 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2469 /* Reconstruct the ELF notes. */
2470 bfd_byte
* new_contents
;
2473 bfd_size_type new_size
;
2474 bfd_vma prev_start
= 0;
2475 bfd_vma prev_end
= 0;
2477 /* Not sure how, but the notes might grow in size.
2478 (eg see PR 1774507). Allow for this here. */
2479 new = new_contents
= xmalloc (size
* 2);
2480 for (pnote
= pnotes
, old
= contents
;
2484 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2486 if (! is_deleted_note (pnote
))
2488 /* Create the note, potentially using the
2489 address range of the previous note. */
2490 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2492 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2493 bfd_put_32 (abfd
, 0, new + 4);
2494 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2496 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2497 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2498 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2499 new += pnote
->padded_namesz
;
2503 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2504 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2505 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2507 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2508 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2509 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2510 new += pnote
->padded_namesz
;
2511 if (is_64bit (abfd
))
2513 bfd_put_64 (abfd
, pnote
->start
, new);
2514 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2519 bfd_put_32 (abfd
, pnote
->start
, new);
2520 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2524 prev_start
= pnote
->start
;
2525 prev_end
= pnote
->end
;
2533 merge_debug ("Results of merge:\n");
2534 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2535 if (! is_deleted_note (pnote
))
2536 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2537 (pnote
->note
.namedata
- (char *) contents
) - 12,
2538 pnote
->start
, pnote
->end
,
2540 pnote
->note
.namedata
[3],
2545 new_size
= new - new_contents
;
2546 if (new_size
< size
)
2548 memcpy (contents
, new_contents
, new_size
);
2551 free (new_contents
);
2556 bfd_set_error (bfd_error_bad_value
);
2557 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2566 check_new_section_flags (flagword flags
, bfd
* abfd
, const char * secname
)
2568 /* Only set the SEC_COFF_SHARED flag on COFF files.
2569 The same bit value is used by ELF targets to indicate
2570 compressed sections, and setting that flag here breaks
2572 if ((flags
& SEC_COFF_SHARED
)
2573 && bfd_get_flavour (abfd
) != bfd_target_coff_flavour
)
2575 non_fatal (_("%s[%s]: Note - dropping 'share' flag as output format is not COFF"),
2576 bfd_get_filename (abfd
), secname
);
2577 flags
&= ~ SEC_COFF_SHARED
;
2582 /* Copy object file IBFD onto OBFD.
2583 Returns TRUE upon success, FALSE otherwise. */
2586 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2590 asection
**osections
= NULL
;
2592 asection
*gnu_debuglink_section
= NULL
;
2593 bfd_size_type
*gaps
= NULL
;
2594 bfd_size_type max_gap
= 0;
2597 enum bfd_architecture iarch
;
2599 unsigned int num_sec
, i
;
2601 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2602 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2603 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2605 /* PR 17636: Call non-fatal so that we return to our parent who
2606 may need to tidy temporary files. */
2607 non_fatal (_("unable to change endianness of '%s'"),
2608 bfd_get_archive_filename (ibfd
));
2612 if (ibfd
->read_only
)
2614 non_fatal (_("unable to modify '%s' due to errors"),
2615 bfd_get_archive_filename (ibfd
));
2619 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2621 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2625 if (ibfd
->sections
== NULL
)
2627 non_fatal (_("error: the input file '%s' has no sections"),
2628 bfd_get_archive_filename (ibfd
));
2632 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2634 if ((do_debug_sections
& compress
) != 0
2635 && do_debug_sections
!= compress
)
2637 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2638 bfd_get_archive_filename (ibfd
));
2642 if (do_elf_stt_common
)
2644 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2645 bfd_get_archive_filename (ibfd
));
2651 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2652 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2653 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2662 start
= bfd_get_start_address (ibfd
);
2663 start
+= change_start
;
2666 /* Neither the start address nor the flags
2667 need to be set for a core file. */
2668 if (bfd_get_format (obfd
) != bfd_core
)
2672 flags
= bfd_get_file_flags (ibfd
);
2673 flags
|= bfd_flags_to_set
;
2674 flags
&= ~bfd_flags_to_clear
;
2675 flags
&= bfd_applicable_file_flags (obfd
);
2677 if (strip_symbols
== STRIP_ALL
)
2678 flags
&= ~HAS_RELOC
;
2680 if (!bfd_set_start_address (obfd
, start
)
2681 || !bfd_set_file_flags (obfd
, flags
))
2683 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2688 /* Copy architecture of input file to output file. */
2689 iarch
= bfd_get_arch (ibfd
);
2690 imach
= bfd_get_mach (ibfd
);
2693 if (iarch
== bfd_arch_unknown
)
2695 iarch
= input_arch
->arch
;
2696 imach
= input_arch
->mach
;
2699 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2700 bfd_get_archive_filename (ibfd
));
2702 if (iarch
== bfd_arch_unknown
2703 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2704 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2706 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2710 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2711 && (ibfd
->target_defaulted
2712 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2714 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2715 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2716 bfd_get_archive_filename (ibfd
));
2718 non_fatal (_("Output file cannot represent architecture `%s'"),
2719 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2720 bfd_get_mach (ibfd
)));
2724 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2726 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2730 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2731 && bfd_pei_p (obfd
))
2733 /* Set up PE parameters. */
2734 pe_data_type
*pe
= pe_data (obfd
);
2736 /* Copy PE parameters before changing them. */
2737 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2738 && bfd_pei_p (ibfd
))
2739 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2741 if (pe_file_alignment
!= (bfd_vma
) -1)
2742 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2744 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2746 if (pe_heap_commit
!= (bfd_vma
) -1)
2747 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2749 if (pe_heap_reserve
!= (bfd_vma
) -1)
2750 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2752 if (pe_image_base
!= (bfd_vma
) -1)
2753 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2755 if (pe_section_alignment
!= (bfd_vma
) -1)
2756 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2758 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2760 if (pe_stack_commit
!= (bfd_vma
) -1)
2761 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2763 if (pe_stack_reserve
!= (bfd_vma
) -1)
2764 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2766 if (pe_subsystem
!= -1)
2767 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2769 if (pe_major_subsystem_version
!= -1)
2770 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2772 if (pe_minor_subsystem_version
!= -1)
2773 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2775 if (pe_file_alignment
> pe_section_alignment
)
2777 char file_alignment
[20], section_alignment
[20];
2779 sprintf_vma (file_alignment
, pe_file_alignment
);
2780 sprintf_vma (section_alignment
, pe_section_alignment
);
2781 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2783 file_alignment
, section_alignment
);
2787 && bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2788 && bfd_pei_p (ibfd
))
2789 pe
->timestamp
= pe_data (ibfd
)->coff
.timestamp
;
2795 if (osympp
!= isympp
)
2801 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2804 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2808 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2809 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2812 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2815 /* PR 17512: file: d6323821
2816 If the symbol table could not be loaded do not pretend that we have
2817 any symbols. This trips us up later on when we load the relocs. */
2821 osympp
= isympp
= NULL
;
2824 /* BFD mandates that all output sections be created and sizes set before
2825 any output is done. Thus, we traverse all sections multiple times. */
2826 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2828 if (!extract_symbol
)
2829 setup_bfd_headers (ibfd
, obfd
);
2831 if (add_sections
!= NULL
)
2833 struct section_add
*padd
;
2834 struct section_list
*pset
;
2836 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2840 pset
= find_section_list (padd
->name
, FALSE
,
2841 SECTION_CONTEXT_SET_FLAGS
);
2844 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2845 flags
= check_new_section_flags (flags
, obfd
, padd
->name
);
2848 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2850 /* bfd_make_section_with_flags() does not return very helpful
2851 error codes, so check for the most likely user error first. */
2852 if (bfd_get_section_by_name (obfd
, padd
->name
))
2854 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2855 _("can't add section '%s'"), padd
->name
);
2860 /* We use LINKER_CREATED here so that the backend hooks
2861 will create any special section type information,
2862 instead of presuming we know what we're doing merely
2863 because we set the flags. */
2864 padd
->section
= bfd_make_section_with_flags
2865 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2866 if (padd
->section
== NULL
)
2868 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2869 _("can't create section `%s'"),
2875 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2877 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2881 pset
= find_section_list (padd
->name
, FALSE
,
2882 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2884 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2886 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2890 pset
= find_section_list (padd
->name
, FALSE
,
2891 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2894 padd
->section
->lma
= pset
->lma_val
;
2896 if (!bfd_set_section_alignment
2897 (padd
->section
, bfd_section_alignment (padd
->section
)))
2899 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2906 if (update_sections
!= NULL
)
2908 struct section_add
*pupdate
;
2910 for (pupdate
= update_sections
;
2912 pupdate
= pupdate
->next
)
2914 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2915 if (pupdate
->section
== NULL
)
2917 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2921 osec
= pupdate
->section
->output_section
;
2922 if (!bfd_set_section_size (osec
, pupdate
->size
))
2924 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2930 merged_note_section
* merged_note_sections
= NULL
;
2933 /* This palaver is necessary because we must set the output
2934 section size first, before its contents are ready. */
2935 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2937 if (! is_mergeable_note_section (ibfd
, osec
))
2940 /* If the section is going to be completly deleted then
2941 do not bother to merge it. */
2942 if (osec
->output_section
== NULL
)
2945 bfd_size_type size
= bfd_section_size (osec
);
2949 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2950 _("warning: note section is empty"));
2954 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2955 merged
->contents
= NULL
;
2956 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2958 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2959 _("warning: could not load note section"));
2964 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2967 /* FIXME: Once we have read the contents in, we must write
2968 them out again. So even if the mergeing has achieved
2969 nothing we still add this entry to the merge list. */
2971 if (size
!= merged
->size
2972 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2974 bfd_nonfatal_message (NULL
, obfd
, osec
,
2975 _("warning: failed to set merged notes size"));
2976 free (merged
->contents
);
2981 /* Add section to list of merged sections. */
2983 merged
->next
= merged_note_sections
;
2984 merged_note_sections
= merged
;
2988 if (dump_sections
!= NULL
)
2990 struct section_add
* pdump
;
2992 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2997 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
3000 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3001 _("can't dump section '%s' - it does not exist"),
3006 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
3008 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3009 _("can't dump section - it has no contents"));
3013 bfd_size_type size
= bfd_section_size (osec
);
3014 /* Note - we allow the dumping of zero-sized sections,
3015 creating an empty file. */
3017 f
= fopen (pdump
->filename
, FOPEN_WB
);
3020 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3021 _("could not open section dump file"));
3025 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3027 if (size
!= 0 && fwrite (contents
, 1, size
, f
) != size
)
3029 non_fatal (_("error writing section contents to %s (error: %s)"),
3038 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3039 _("could not retrieve section contents"));
3046 if (gnu_debuglink_filename
!= NULL
)
3048 /* PR 15125: Give a helpful warning message if
3049 the debuglink section already exists, and
3050 allow the rest of the copy to complete. */
3051 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3053 non_fatal (_("%s: debuglink section already exists"),
3054 bfd_get_filename (obfd
));
3055 gnu_debuglink_filename
= NULL
;
3059 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3060 (obfd
, gnu_debuglink_filename
);
3062 if (gnu_debuglink_section
== NULL
)
3064 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3065 _("cannot create debug link section `%s'"),
3066 gnu_debuglink_filename
);
3070 /* Special processing for PE format files. We
3071 have no way to distinguish PE from COFF here. */
3072 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3074 bfd_vma debuglink_vma
;
3075 asection
* highest_section
;
3077 /* The PE spec requires that all sections be adjacent and sorted
3078 in ascending order of VMA. It also specifies that debug
3079 sections should be last. This is despite the fact that debug
3080 sections are not loaded into memory and so in theory have no
3083 This means that the debuglink section must be given a non-zero
3084 VMA which makes it contiguous with other debug sections. So
3085 walk the current section list, find the section with the
3086 highest VMA and start the debuglink section after that one. */
3087 for (osec
= obfd
->sections
, highest_section
= NULL
;
3091 && (highest_section
== NULL
3092 || osec
->vma
> highest_section
->vma
))
3093 highest_section
= osec
;
3095 if (highest_section
)
3096 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3097 + highest_section
->size
,
3098 /* FIXME: We ought to be using
3099 COFF_PAGE_SIZE here or maybe
3100 bfd_section_alignment() (if it
3101 was set) but since this is for PE
3102 and we know the required alignment
3103 it is easier just to hard code it. */
3106 /* Umm, not sure what to do in this case. */
3107 debuglink_vma
= 0x1000;
3109 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3114 num_sec
= bfd_count_sections (obfd
);
3116 && (gap_fill_set
|| pad_to_set
))
3120 /* We must fill in gaps between the sections and/or we must pad
3121 the last section to a specified address. We do this by
3122 grabbing a list of the sections, sorting them by VMA, and
3123 increasing the section sizes as required to fill the gaps.
3124 We write out the gap contents below. */
3126 osections
= xmalloc (num_sec
* sizeof (*osections
));
3128 bfd_map_over_sections (obfd
, get_sections
, &set
);
3130 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3132 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3133 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3137 for (i
= 0; i
< num_sec
- 1; i
++)
3140 bfd_size_type size
; /* Octets. */
3141 bfd_vma gap_start
, gap_stop
; /* Octets. */
3142 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3143 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3145 flags
= bfd_section_flags (osections
[i
]);
3146 if ((flags
& SEC_HAS_CONTENTS
) == 0
3147 || (flags
& SEC_LOAD
) == 0)
3150 size
= bfd_section_size (osections
[i
]);
3151 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3152 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3153 if (gap_start
< gap_stop
)
3155 if (!bfd_set_section_size (osections
[i
],
3156 size
+ (gap_stop
- gap_start
)))
3158 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3159 _("Can't fill gap after section"));
3163 gaps
[i
] = gap_stop
- gap_start
;
3164 if (max_gap
< gap_stop
- gap_start
)
3165 max_gap
= gap_stop
- gap_start
;
3172 bfd_vma lma
; /* Octets. */
3173 bfd_size_type size
; /* Octets. */
3174 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3175 bfd_vma _pad_to
= pad_to
* opb
;
3177 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3178 size
= bfd_section_size (osections
[num_sec
- 1]);
3179 if (lma
+ size
< _pad_to
)
3181 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3183 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3184 _("can't add padding"));
3189 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3190 if (max_gap
< _pad_to
- (lma
+ size
))
3191 max_gap
= _pad_to
- (lma
+ size
);
3197 /* Symbol filtering must happen after the output sections
3198 have been created, but before their contents are set. */
3200 if (convert_debugging
)
3201 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3203 if (strip_symbols
== STRIP_DEBUG
3204 || strip_symbols
== STRIP_ALL
3205 || strip_symbols
== STRIP_UNNEEDED
3206 || strip_symbols
== STRIP_NONDEBUG
3207 || strip_symbols
== STRIP_DWO
3208 || strip_symbols
== STRIP_NONDWO
3209 || discard_locals
!= LOCALS_UNDEF
3211 || htab_elements (strip_specific_htab
) != 0
3212 || htab_elements (keep_specific_htab
) != 0
3213 || htab_elements (localize_specific_htab
) != 0
3214 || htab_elements (globalize_specific_htab
) != 0
3215 || htab_elements (keepglobal_specific_htab
) != 0
3216 || htab_elements (weaken_specific_htab
) != 0
3217 || htab_elements (redefine_specific_htab
) != 0
3218 || prefix_symbols_string
3221 || convert_debugging
3222 || change_leading_char
3223 || remove_leading_char
3224 || section_rename_list
3228 /* Mark symbols used in output relocations so that they
3229 are kept, even if they are local labels or static symbols.
3231 Note we iterate over the input sections examining their
3232 relocations since the relocations for the output sections
3233 haven't been set yet. mark_symbols_used_in_relocations will
3234 ignore input sections which have no corresponding output
3236 if (strip_symbols
!= STRIP_ALL
)
3238 bfd_set_error (bfd_error_no_error
);
3239 bfd_map_over_sections (ibfd
,
3240 mark_symbols_used_in_relocations
,
3242 if (bfd_get_error () != bfd_error_no_error
)
3249 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3250 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3253 if (convert_debugging
&& dhandle
!= NULL
)
3257 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3260 dhandle
= NULL
; /* Paranoia... */
3269 bfd_set_symtab (obfd
, osympp
, symcount
);
3271 /* This has to happen before section positions are set. */
3272 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3274 /* This has to happen after the symbol table has been set. */
3275 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3277 if (add_sections
!= NULL
)
3279 struct section_add
*padd
;
3281 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3283 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3286 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3292 if (update_sections
!= NULL
)
3294 struct section_add
*pupdate
;
3296 for (pupdate
= update_sections
;
3298 pupdate
= pupdate
->next
)
3300 osec
= pupdate
->section
->output_section
;
3301 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3304 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3310 if (merged_note_sections
!= NULL
)
3312 merged_note_section
* merged
= NULL
;
3314 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3316 if (! is_mergeable_note_section (obfd
, osec
))
3320 merged
= merged_note_sections
;
3322 /* It is likely that output sections are in the same order
3323 as the input sections, but do not assume that this is
3325 if (strcmp (bfd_section_name (merged
->sec
),
3326 bfd_section_name (osec
)) != 0)
3328 for (merged
= merged_note_sections
;
3330 merged
= merged
->next
)
3331 if (strcmp (bfd_section_name (merged
->sec
),
3332 bfd_section_name (osec
)) == 0)
3337 bfd_nonfatal_message
3339 _("error: failed to locate merged notes"));
3344 if (merged
->contents
== NULL
)
3346 bfd_nonfatal_message
3348 _("error: failed to merge notes"));
3352 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3355 bfd_nonfatal_message
3357 _("error: failed to copy merged notes into output"));
3361 merged
= merged
->next
;
3364 /* Free the memory. */
3365 merged_note_section
* next
;
3366 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3368 next
= merged
->next
;
3369 free (merged
->contents
);
3373 else if (merge_notes
&& ! is_strip
)
3374 non_fatal (_("%s: Could not find any mergeable note sections"),
3375 bfd_get_filename (ibfd
));
3377 if (gnu_debuglink_filename
!= NULL
)
3379 if (! bfd_fill_in_gnu_debuglink_section
3380 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3382 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3383 _("cannot fill debug link section `%s'"),
3384 gnu_debuglink_filename
);
3393 /* Fill in the gaps. */
3396 buf
= (bfd_byte
*) xmalloc (max_gap
);
3397 memset (buf
, gap_fill
, max_gap
);
3399 for (i
= 0; i
< num_sec
; i
++)
3407 off
= bfd_section_size (osections
[i
]) - left
;
3418 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3421 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3437 /* Allow the BFD backend to copy any private data it understands
3438 from the input BFD to the output BFD. This is done last to
3439 permit the routine to look at the filtered symbol table, which is
3440 important for the ECOFF code at least. */
3441 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3443 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3444 _("error copying private BFD data"));
3448 /* Switch to the alternate machine code. We have to do this at the
3449 very end, because we only initialize the header when we create
3450 the first section. */
3451 if (use_alt_mach_code
!= 0)
3453 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3455 non_fatal (_("this target does not support %lu alternative machine codes"),
3457 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3459 non_fatal (_("treating that number as an absolute e_machine value instead"));
3460 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3463 non_fatal (_("ignoring the alternative value"));
3470 /* Read each archive element in turn from IBFD, copy the
3471 contents to temp file, and keep the temp file handle.
3472 If 'force_output_target' is TRUE then make sure that
3473 all elements in the new archive are of the type
3477 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3478 bfd_boolean force_output_target
,
3479 const bfd_arch_info_type
*input_arch
)
3483 struct name_list
*next
;
3487 bfd
**ptr
= &obfd
->archive_head
;
3490 const char *filename
;
3492 /* PR 24281: It is not clear what should happen when copying a thin archive.
3493 One part is straight forward - if the output archive is in a different
3494 directory from the input archive then any relative paths in the library
3495 should be adjusted to the new location. But if any transformation
3496 options are active (eg strip, rename, add, etc) then the implication is
3497 that these should be applied to the files pointed to by the archive.
3498 But since objcopy is not destructive, this means that new files must be
3499 created, and there is no guidance for the names of the new files. (Plus
3500 this conflicts with one of the goals of thin libraries - only taking up
3501 a minimal amount of space in the file system).
3503 So for now we fail if an attempt is made to copy such libraries. */
3504 if (ibfd
->is_thin_archive
)
3507 bfd_set_error (bfd_error_invalid_operation
);
3508 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3509 _("sorry: copying thin archives is not currently supported"));
3513 /* Make a temp directory to hold the contents. */
3514 dir
= make_tempdir (bfd_get_filename (obfd
));
3516 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3519 if (strip_symbols
== STRIP_ALL
)
3520 obfd
->has_armap
= FALSE
;
3522 obfd
->has_armap
= ibfd
->has_armap
;
3523 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3526 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3530 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3532 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3535 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3536 goto cleanup_and_exit
;
3539 while (!status
&& this_element
!= NULL
)
3545 int stat_status
= 0;
3546 bfd_boolean del
= TRUE
;
3547 bfd_boolean ok_object
;
3549 /* PR binutils/17533: Do not allow directory traversal
3550 outside of the current directory tree by archive members. */
3551 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3553 non_fatal (_("illegal pathname found in archive member: %s"),
3554 bfd_get_filename (this_element
));
3556 goto cleanup_and_exit
;
3559 /* Create an output file for this member. */
3560 output_name
= concat (dir
, "/",
3561 bfd_get_filename (this_element
), (char *) 0);
3563 /* If the file already exists, make another temp dir. */
3564 if (stat (output_name
, &buf
) >= 0)
3566 char * tmpdir
= make_tempdir (output_name
);
3571 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3574 goto cleanup_and_exit
;
3577 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3582 output_name
= concat (tmpdir
, "/",
3583 bfd_get_filename (this_element
), (char *) 0);
3588 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3590 if (stat_status
!= 0)
3591 non_fatal (_("internal stat error on %s"),
3592 bfd_get_filename (this_element
));
3595 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3596 l
->name
= output_name
;
3601 ok_object
= bfd_check_format (this_element
, bfd_object
);
3603 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3604 _("Unable to recognise the format of file"));
3606 /* PR binutils/3110: Cope with archives
3607 containing multiple target types. */
3608 if (force_output_target
|| !ok_object
)
3609 output_bfd
= bfd_openw (output_name
, output_target
);
3611 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3613 if (output_bfd
== NULL
)
3615 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3617 goto cleanup_and_exit
;
3622 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3624 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3625 /* Try again as an unknown object file. */
3627 else if (!bfd_close (output_bfd
))
3629 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3630 /* Error in new object file. Don't change archive. */
3637 del
= !copy_unknown_object (this_element
, output_bfd
);
3638 if (!bfd_close_all_done (output_bfd
))
3640 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3641 /* Error in new object file. Don't change archive. */
3648 unlink (output_name
);
3653 if (preserve_dates
&& stat_status
== 0)
3654 set_times (output_name
, &buf
);
3656 /* Open the newly output file and attach to our list. */
3657 output_bfd
= bfd_openr (output_name
, output_target
);
3659 l
->obfd
= output_bfd
;
3662 ptr
= &output_bfd
->archive_next
;
3664 last_element
= this_element
;
3666 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3668 bfd_close (last_element
);
3673 filename
= bfd_get_filename (obfd
);
3674 if (!bfd_close (obfd
))
3677 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3680 filename
= bfd_get_filename (ibfd
);
3681 if (!bfd_close (ibfd
))
3684 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3688 /* Delete all the files that we opened. */
3690 struct name_list
* next
;
3692 for (l
= list
; l
!= NULL
; l
= next
)
3694 if (l
->obfd
== NULL
)
3698 bfd_close (l
->obfd
);
3710 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3712 /* This is only relevant to Coff targets. */
3713 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3716 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3717 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3718 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3722 /* The top-level control. */
3725 copy_file (const char *input_filename
, const char *output_filename
,
3726 const char *input_target
, const char *output_target
,
3727 const bfd_arch_info_type
*input_arch
)
3730 char **obj_matching
;
3731 char **core_matching
;
3732 off_t size
= get_file_size (input_filename
);
3737 non_fatal (_("error: the input file '%s' is empty"),
3743 /* To allow us to do "strip *" without dying on the first
3744 non-object file, failures are nonfatal. */
3745 ibfd
= bfd_openr (input_filename
, input_target
);
3748 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3753 switch (do_debug_sections
)
3757 case compress_gnu_zlib
:
3758 case compress_gabi_zlib
:
3759 ibfd
->flags
|= BFD_COMPRESS
;
3760 /* Don't check if input is ELF here since this information is
3761 only available after bfd_check_format_matches is called. */
3762 if (do_debug_sections
!= compress_gnu_zlib
)
3763 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3766 ibfd
->flags
|= BFD_DECOMPRESS
;
3772 switch (do_elf_stt_common
)
3774 case elf_stt_common
:
3775 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3778 case no_elf_stt_common
:
3779 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3785 if (bfd_check_format (ibfd
, bfd_archive
))
3787 bfd_boolean force_output_target
;
3790 /* bfd_get_target does not return the correct value until
3791 bfd_check_format succeeds. */
3792 if (output_target
== NULL
)
3794 output_target
= bfd_get_target (ibfd
);
3795 force_output_target
= FALSE
;
3798 force_output_target
= TRUE
;
3800 obfd
= bfd_openw (output_filename
, output_target
);
3803 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3808 if (gnu_debuglink_filename
!= NULL
)
3810 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3811 bfd_get_filename (ibfd
));
3812 gnu_debuglink_filename
= NULL
;
3815 /* This is a no-op on non-Coff targets. */
3816 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3818 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3820 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3825 /* bfd_get_target does not return the correct value until
3826 bfd_check_format succeeds. */
3827 if (output_target
== NULL
)
3828 output_target
= bfd_get_target (ibfd
);
3830 obfd
= bfd_openw (output_filename
, output_target
);
3833 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3837 /* This is a no-op on non-Coff targets. */
3838 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3840 if (! copy_object (ibfd
, obfd
, input_arch
))
3843 /* PR 17512: file: 0f15796a.
3844 If the file could not be copied it may not be in a writeable
3845 state. So use bfd_close_all_done to avoid the possibility of
3846 writing uninitialised data into the file. */
3847 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3850 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3854 if (!bfd_close (ibfd
))
3857 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3863 bfd_error_type obj_error
= bfd_get_error ();
3864 bfd_error_type core_error
;
3866 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3868 /* This probably can't happen.. */
3869 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3870 free (obj_matching
);
3874 core_error
= bfd_get_error ();
3875 /* Report the object error in preference to the core error. */
3876 if (obj_error
!= core_error
)
3877 bfd_set_error (obj_error
);
3879 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3881 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3883 list_matching_formats (obj_matching
);
3884 free (obj_matching
);
3886 if (core_error
== bfd_error_file_ambiguously_recognized
)
3888 list_matching_formats (core_matching
);
3889 free (core_matching
);
3896 /* Add a name to the section renaming list. */
3899 add_section_rename (const char * old_name
, const char * new_name
,
3902 section_rename
* srename
;
3904 /* Check for conflicts first. */
3905 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3906 if (strcmp (srename
->old_name
, old_name
) == 0)
3908 /* Silently ignore duplicate definitions. */
3909 if (strcmp (srename
->new_name
, new_name
) == 0
3910 && srename
->flags
== flags
)
3913 fatal (_("Multiple renames of section %s"), old_name
);
3916 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3918 srename
->old_name
= old_name
;
3919 srename
->new_name
= new_name
;
3920 srename
->flags
= flags
;
3921 srename
->next
= section_rename_list
;
3923 section_rename_list
= srename
;
3926 /* Check the section rename list for a new name of the input section
3927 called OLD_NAME. Returns the new name if one is found and sets
3928 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3931 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3933 const section_rename
*srename
;
3935 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3936 if (strcmp (srename
->old_name
, old_name
) == 0)
3938 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3939 *returned_flags
= srename
->flags
;
3941 return srename
->new_name
;
3947 /* Once each of the sections is copied, we may still need to do some
3948 finalization work for private section headers. Do that here. */
3951 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3953 /* Allow the BFD backend to copy any private data it understands
3954 from the input section to the output section. */
3955 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3958 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3959 _("error in private header data"));
3963 /* All went well. */
3967 /* Create a section in OBFD with the same
3968 name and attributes as ISECTION in IBFD. */
3971 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3973 bfd
*obfd
= (bfd
*) obfdarg
;
3974 struct section_list
*p
;
3982 const char * new_name
;
3983 char *prefix
= NULL
;
3984 bfd_boolean make_nobits
;
3985 unsigned int alignment
;
3987 if (is_strip_section (ibfd
, isection
))
3990 /* Get the, possibly new, name of the output section. */
3991 name
= bfd_section_name (isection
);
3992 flags
= bfd_section_flags (isection
);
3993 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3995 flags
&= bfd_applicable_section_flags (ibfd
);
3996 flags
&= bfd_applicable_section_flags (obfd
);
3998 new_name
= find_section_rename (name
, &flags
);
3999 if (new_name
!= name
)
4002 flags
= check_new_section_flags (flags
, obfd
, name
);
4005 /* Prefix sections. */
4006 if (prefix_alloc_sections_string
4007 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
4008 prefix
= prefix_alloc_sections_string
;
4009 else if (prefix_sections_string
)
4010 prefix
= prefix_sections_string
;
4016 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4022 make_nobits
= FALSE
;
4024 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4025 SECTION_CONTEXT_SET_FLAGS
);
4028 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4029 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4031 else if (strip_symbols
== STRIP_NONDEBUG
4032 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4033 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4035 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4036 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4040 /* Twiddle the input section flags so that it seems to
4041 elf.c:copy_private_bfd_data that section flags have not
4042 changed between input and output sections. This hack
4043 prevents wholesale rewriting of the program headers. */
4044 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4048 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4050 if (osection
== NULL
)
4052 err
= _("failed to create output section");
4057 elf_section_type (osection
) = SHT_NOBITS
;
4059 size
= bfd_section_size (isection
);
4060 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4062 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4063 else if (extract_symbol
)
4065 if (!bfd_set_section_size (osection
, size
))
4067 err
= _("failed to set size");
4071 vma
= bfd_section_vma (isection
);
4072 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4073 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4076 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4082 vma
+= change_section_address
;
4084 if (!bfd_set_section_vma (osection
, vma
))
4086 err
= _("failed to set vma");
4090 lma
= isection
->lma
;
4091 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4092 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4095 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4101 lma
+= change_section_address
;
4103 osection
->lma
= lma
;
4105 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4106 SECTION_CONTEXT_SET_ALIGNMENT
);
4108 alignment
= p
->alignment
;
4110 alignment
= bfd_section_alignment (isection
);
4112 /* FIXME: This is probably not enough. If we change the LMA we
4113 may have to recompute the header for the file as well. */
4114 if (!bfd_set_section_alignment (osection
, alignment
))
4116 err
= _("failed to set alignment");
4120 /* Copy merge entity size. */
4121 osection
->entsize
= isection
->entsize
;
4123 /* Copy compress status. */
4124 osection
->compress_status
= isection
->compress_status
;
4126 /* This used to be mangle_section; we do here to avoid using
4127 bfd_get_section_by_name since some formats allow multiple
4128 sections with the same name. */
4129 isection
->output_section
= osection
;
4130 isection
->output_offset
= 0;
4132 if ((isection
->flags
& SEC_GROUP
) != 0)
4134 asymbol
*gsym
= group_signature (isection
);
4138 gsym
->flags
|= BSF_KEEP
;
4139 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4140 elf_group_id (isection
) = gsym
;
4144 /* Allow the BFD backend to copy any private data it understands
4145 from the input section to the output section. */
4146 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4148 err
= _("failed to copy private data");
4152 /* All went well. */
4157 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4160 /* Return TRUE if input section ISECTION should be skipped. */
4163 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4169 /* If we have already failed earlier on,
4170 do not keep on generating complaints now. */
4177 if (is_strip_section (ibfd
, isection
))
4180 if (is_update_section (ibfd
, isection
))
4183 /* When merging a note section we skip the copying of the contents,
4184 but not the copying of the relocs associated with the contents. */
4185 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4188 flags
= bfd_section_flags (isection
);
4189 if ((flags
& SEC_GROUP
) != 0)
4192 osection
= isection
->output_section
;
4193 size
= bfd_section_size (isection
);
4195 if (size
== 0 || osection
== 0)
4201 /* Add section SECTION_PATTERN to the list of sections that will have their
4202 relocations removed. */
4205 handle_remove_relocations_option (const char *section_pattern
)
4207 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4210 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4211 otherwise return FALSE. If the user has requested that relocations be
4212 removed from a section that does not have relocations then this
4213 function will still return TRUE. */
4216 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4218 return (find_section_list (bfd_section_name (isection
), FALSE
,
4219 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4222 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4223 A special case is detected here, if the user asks to remove a relocation
4224 section (one starting with ".rela" or ".rel") then this removal must
4225 be done using a different technique in a relocatable object. */
4228 handle_remove_section_option (const char *section_pattern
)
4230 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4231 if (strncmp (section_pattern
, ".rel", 4) == 0)
4233 section_pattern
+= 4;
4234 if (*section_pattern
== 'a')
4236 if (*section_pattern
)
4237 handle_remove_relocations_option (section_pattern
);
4239 sections_removed
= TRUE
;
4242 /* Copy relocations in input section ISECTION of IBFD to an output
4243 section with the same name in OBFDARG. If stripping then don't
4244 copy any relocation info. */
4247 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4249 bfd
*obfd
= (bfd
*) obfdarg
;
4255 if (skip_section (ibfd
, isection
, FALSE
))
4258 osection
= isection
->output_section
;
4260 /* Core files and DWO files do not need to be relocated. */
4261 if (bfd_get_format (obfd
) == bfd_core
4262 || strip_symbols
== STRIP_NONDWO
4263 || discard_relocations (ibfd
, isection
))
4267 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4271 /* Do not complain if the target does not support relocations. */
4272 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4277 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4285 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4286 osection
->flags
&= ~SEC_RELOC
;
4290 if (isection
->orelocation
!= NULL
)
4292 /* Some other function has already set up the output relocs
4293 for us, so scan those instead of the default relocs. */
4294 relcount
= isection
->reloc_count
;
4295 relpp
= isection
->orelocation
;
4299 relpp
= (arelent
**) xmalloc (relsize
);
4300 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4304 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4305 _("relocation count is negative"));
4311 if (strip_symbols
== STRIP_ALL
)
4313 /* Remove relocations which are not in
4314 keep_strip_specific_list. */
4315 arelent
**temp_relpp
;
4316 long temp_relcount
= 0;
4319 temp_relpp
= (arelent
**) xmalloc (relsize
);
4320 for (i
= 0; i
< relcount
; i
++)
4322 /* PR 17512: file: 9e907e0c. */
4323 if (relpp
[i
]->sym_ptr_ptr
4325 && * relpp
[i
]->sym_ptr_ptr
)
4326 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4327 keep_specific_htab
))
4328 temp_relpp
[temp_relcount
++] = relpp
[i
];
4330 relcount
= temp_relcount
;
4331 if (relpp
!= isection
->orelocation
)
4336 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4339 osection
->flags
&= ~SEC_RELOC
;
4340 if (relpp
!= isection
->orelocation
)
4346 /* Copy the data of input section ISECTION of IBFD
4347 to an output section with the same name in OBFD. */
4350 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4352 bfd
*obfd
= (bfd
*) obfdarg
;
4353 struct section_list
*p
;
4357 if (skip_section (ibfd
, isection
, TRUE
))
4360 osection
= isection
->output_section
;
4361 /* The output SHF_COMPRESSED section size is different from input if
4362 ELF classes of input and output aren't the same. We can't use
4363 the output section size since --interleave will shrink the output
4364 section. Size will be updated if the section is converted. */
4365 size
= bfd_section_size (isection
);
4367 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4368 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4370 bfd_byte
*memhunk
= NULL
;
4372 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4373 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4377 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4384 /* We don't handle leftover bytes (too many possible behaviors,
4385 and we don't know what the user wants). The section length
4386 must be a multiple of the number of bytes to swap. */
4387 if ((size
% reverse_bytes
) == 0)
4392 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4393 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4395 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4398 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4399 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4403 /* User must pad the section up in order to do this. */
4404 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4405 bfd_section_name (isection
), reverse_bytes
);
4410 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4411 char *from
= (char *) memhunk
+ copy_byte
;
4412 char *to
= (char *) memhunk
;
4413 char *end
= (char *) memhunk
+ size
;
4416 /* If the section address is not exactly divisible by the interleave,
4417 then we must bias the from address. If the copy_byte is less than
4418 the bias, then we must skip forward one interleave, and increment
4420 int extra
= isection
->lma
% interleave
;
4422 if (copy_byte
< extra
)
4425 for (; from
< end
; from
+= interleave
)
4426 for (i
= 0; i
< copy_width
; i
++)
4428 if (&from
[i
] >= end
)
4433 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4434 osection
->lma
/= interleave
;
4435 if (copy_byte
< extra
)
4439 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4442 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4448 else if ((p
= find_section_list (bfd_section_name (isection
),
4449 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4450 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4452 void *memhunk
= xmalloc (size
);
4454 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4455 flag--they can just remove the section entirely and add it
4456 back again. However, we do permit them to turn on the
4457 SEC_HAS_CONTENTS flag, and take it to mean that the section
4458 contents should be zeroed out. */
4460 memset (memhunk
, 0, size
);
4461 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4464 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4472 /* Get all the sections. This is used when --gap-fill or --pad-to is
4476 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4478 asection
***secppp
= (asection
***) secppparg
;
4480 **secppp
= osection
;
4484 /* Sort sections by LMA. This is called via qsort, and is used when
4485 --gap-fill or --pad-to is used. We force non loadable or empty
4486 sections to the front, where they are easier to ignore. */
4489 compare_section_lma (const void *arg1
, const void *arg2
)
4491 const asection
*sec1
= *(const asection
**) arg1
;
4492 const asection
*sec2
= *(const asection
**) arg2
;
4493 flagword flags1
, flags2
;
4495 /* Sort non loadable sections to the front. */
4496 flags1
= sec1
->flags
;
4497 flags2
= sec2
->flags
;
4498 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4499 || (flags1
& SEC_LOAD
) == 0)
4501 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4502 && (flags2
& SEC_LOAD
) != 0)
4507 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4508 || (flags2
& SEC_LOAD
) == 0)
4512 /* Sort sections by LMA. */
4513 if (sec1
->lma
> sec2
->lma
)
4515 if (sec1
->lma
< sec2
->lma
)
4518 /* Sort sections with the same LMA by size. */
4519 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4521 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4524 if (sec1
->id
> sec2
->id
)
4526 if (sec1
->id
< sec2
->id
)
4531 /* Mark all the symbols which will be used in output relocations with
4532 the BSF_KEEP flag so that those symbols will not be stripped.
4534 Ignore relocations which will not appear in the output file. */
4537 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4539 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4544 /* Ignore an input section with no corresponding output section. */
4545 if (isection
->output_section
== NULL
)
4548 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4551 /* Do not complain if the target does not support relocations. */
4552 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4554 bfd_fatal (bfd_get_filename (ibfd
));
4560 relpp
= (arelent
**) xmalloc (relsize
);
4561 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4563 bfd_fatal (bfd_get_filename (ibfd
));
4565 /* Examine each symbol used in a relocation. If it's not one of the
4566 special bfd section symbols, then mark it with BSF_KEEP. */
4567 for (i
= 0; i
< relcount
; i
++)
4569 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4570 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4571 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4572 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4573 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4574 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4575 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4582 /* Write out debugging information. */
4585 write_debugging_info (bfd
*obfd
, void *dhandle
,
4586 long *symcountp ATTRIBUTE_UNUSED
,
4587 asymbol
***symppp ATTRIBUTE_UNUSED
)
4589 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4590 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4592 bfd_byte
*syms
, *strings
= NULL
;
4593 bfd_size_type symsize
, stringsize
;
4594 asection
*stabsec
, *stabstrsec
;
4597 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4602 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4603 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4604 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4606 || stabstrsec
== NULL
4607 || !bfd_set_section_size (stabsec
, symsize
)
4608 || !bfd_set_section_size (stabstrsec
, stringsize
)
4609 || !bfd_set_section_alignment (stabsec
, 2)
4610 || !bfd_set_section_alignment (stabstrsec
, 0))
4612 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4613 _("can't create debugging section"));
4618 /* We can get away with setting the section contents now because
4619 the next thing the caller is going to do is copy over the
4620 real sections. We may someday have to split the contents
4621 setting out of this function. */
4622 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4623 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4626 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4627 _("can't set debugging section contents"));
4635 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4636 _("don't know how to write debugging information for %s"),
4637 bfd_get_target (obfd
));
4641 /* If neither -D nor -U was specified explicitly,
4642 then use the configured default. */
4644 default_deterministic (void)
4646 if (deterministic
< 0)
4647 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4651 strip_main (int argc
, char *argv
[])
4653 char *input_target
= NULL
;
4654 char *output_target
= NULL
;
4655 bfd_boolean show_version
= FALSE
;
4656 bfd_boolean formats_info
= FALSE
;
4659 char *output_file
= NULL
;
4660 bfd_boolean merge_notes_set
= FALSE
;
4662 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4663 strip_options
, (int *) 0)) != EOF
)
4668 input_target
= optarg
;
4671 output_target
= optarg
;
4674 input_target
= output_target
= optarg
;
4677 handle_remove_section_option (optarg
);
4679 case OPTION_KEEP_SECTION
:
4680 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4682 case OPTION_REMOVE_RELOCS
:
4683 handle_remove_relocations_option (optarg
);
4686 strip_symbols
= STRIP_ALL
;
4690 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4691 strip_symbols
= STRIP_DEBUG
;
4693 case OPTION_STRIP_DWO
:
4694 strip_symbols
= STRIP_DWO
;
4696 case OPTION_STRIP_UNNEEDED
:
4697 strip_symbols
= STRIP_UNNEEDED
;
4700 add_specific_symbol (optarg
, keep_specific_htab
);
4704 merge_notes_set
= TRUE
;
4706 case OPTION_NO_MERGE_NOTES
:
4707 merge_notes
= FALSE
;
4708 merge_notes_set
= TRUE
;
4711 add_specific_symbol (optarg
, strip_specific_htab
);
4714 output_file
= optarg
;
4717 preserve_dates
= TRUE
;
4720 deterministic
= TRUE
;
4723 deterministic
= FALSE
;
4726 discard_locals
= LOCALS_ALL
;
4729 discard_locals
= LOCALS_START_L
;
4735 show_version
= TRUE
;
4737 case OPTION_FORMATS_INFO
:
4738 formats_info
= TRUE
;
4740 case OPTION_ONLY_KEEP_DEBUG
:
4741 strip_symbols
= STRIP_NONDEBUG
;
4743 case OPTION_KEEP_FILE_SYMBOLS
:
4744 keep_file_symbols
= 1;
4747 /* We've been given a long option. */
4754 strip_usage (stdout
, 0);
4756 strip_usage (stderr
, 1);
4760 /* If the user has not expressly chosen to merge/not-merge ELF notes
4761 then enable the merging unless we are stripping debug or dwo info. */
4762 if (! merge_notes_set
4763 && (strip_symbols
== STRIP_UNDEF
4764 || strip_symbols
== STRIP_ALL
4765 || strip_symbols
== STRIP_UNNEEDED
4766 || strip_symbols
== STRIP_NONDEBUG
4767 || strip_symbols
== STRIP_NONDWO
))
4777 print_version ("strip");
4779 default_deterministic ();
4781 /* Default is to strip all symbols. */
4782 if (strip_symbols
== STRIP_UNDEF
4783 && discard_locals
== LOCALS_UNDEF
4784 && htab_elements (strip_specific_htab
) == 0)
4785 strip_symbols
= STRIP_ALL
;
4787 if (output_target
== NULL
)
4788 output_target
= input_target
;
4792 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4793 strip_usage (stderr
, 1);
4795 for (; i
< argc
; i
++)
4797 int hold_status
= status
;
4798 struct stat statbuf
;
4801 if (get_file_size (argv
[i
]) < 1)
4808 /* No need to check the return value of stat().
4809 It has already been checked in get_file_size(). */
4810 stat (argv
[i
], &statbuf
);
4812 if (output_file
== NULL
4813 || filename_cmp (argv
[i
], output_file
) == 0)
4814 tmpname
= make_tempname (argv
[i
]);
4816 tmpname
= output_file
;
4818 if (tmpname
== NULL
)
4820 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4821 _("could not create temporary file to hold stripped copy"));
4827 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4831 set_times (tmpname
, &statbuf
);
4832 if (output_file
!= tmpname
)
4833 status
= (smart_rename (tmpname
,
4834 output_file
? output_file
: argv
[i
],
4835 preserve_dates
) != 0);
4837 status
= hold_status
;
4840 unlink_if_ordinary (tmpname
);
4841 if (output_file
!= tmpname
)
4848 /* Set up PE subsystem. */
4851 set_pe_subsystem (const char *s
)
4853 const char *version
, *subsystem
;
4863 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4864 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4865 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4866 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4867 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4868 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4869 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4870 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4871 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4872 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4878 /* Check for the presence of a version number. */
4879 version
= strchr (s
, ':');
4880 if (version
== NULL
)
4884 int len
= version
- s
;
4888 version
= copy
+ 1 + len
;
4889 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4891 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4893 non_fatal (_("%s: bad version in PE subsystem"), s
);
4896 /* Check for numeric subsystem. */
4897 value
= (short) strtol (subsystem
, ©
, 0);
4900 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4901 if (v
[i
].value
== value
)
4903 pe_subsystem
= value
;
4904 set_def
= v
[i
].set_def
;
4910 /* Search for subsystem by name. */
4911 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4912 if (strcmp (subsystem
, v
[i
].name
) == 0)
4914 pe_subsystem
= v
[i
].value
;
4915 set_def
= v
[i
].set_def
;
4923 fatal (_("unknown PE subsystem: %s"), s
);
4928 if (pe_file_alignment
== (bfd_vma
) -1)
4929 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4930 if (pe_section_alignment
== (bfd_vma
) -1)
4931 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4935 free ((char *) subsystem
);
4938 /* Convert EFI target to PEI target. */
4941 convert_efi_target (char *efi
)
4947 if (strcmp (efi
+ 4, "ia32") == 0)
4949 /* Change ia32 to i386. */
4954 else if (strcmp (efi
+ 4, "x86_64") == 0)
4956 /* Change x86_64 to x86-64. */
4961 /* Allocate and return a pointer to a struct section_add, initializing the
4962 structure using ARG, a string in the format "sectionname=filename".
4963 The returned structure will have its next pointer set to NEXT. The
4964 OPTION field is the name of the command line option currently being
4965 parsed, and is only used if an error needs to be reported. */
4967 static struct section_add
*
4968 init_section_add (const char *arg
,
4969 struct section_add
*next
,
4972 struct section_add
*pa
;
4975 s
= strchr (arg
, '=');
4977 fatal (_("bad format for %s"), option
);
4979 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4980 pa
->name
= xstrndup (arg
, s
- arg
);
4981 pa
->filename
= s
+ 1;
4983 pa
->contents
= NULL
;
4989 /* Load the file specified in PA, allocating memory to hold the file
4990 contents, and store a pointer to the allocated memory in the contents
4991 field of PA. The size field of PA is also updated. All errors call
4995 section_add_load_file (struct section_add
*pa
)
5000 /* We don't use get_file_size so that we can do
5001 --add-section .note.GNU_stack=/dev/null
5002 get_file_size doesn't work on /dev/null. */
5004 f
= fopen (pa
->filename
, FOPEN_RB
);
5006 fatal (_("cannot open: %s: %s"),
5007 pa
->filename
, strerror (errno
));
5011 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5019 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5022 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5024 fatal (_("%s: fread failed"), pa
->filename
);
5035 copy_main (int argc
, char *argv
[])
5037 char *input_filename
= NULL
;
5038 char *output_filename
= NULL
;
5040 char *input_target
= NULL
;
5041 char *output_target
= NULL
;
5042 bfd_boolean show_version
= FALSE
;
5043 bfd_boolean change_warn
= TRUE
;
5044 bfd_boolean formats_info
= FALSE
;
5045 bfd_boolean use_globalize
= FALSE
;
5046 bfd_boolean use_keep_global
= FALSE
;
5048 struct stat statbuf
;
5049 const bfd_arch_info_type
*input_arch
= NULL
;
5051 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5052 copy_options
, (int *) 0)) != EOF
)
5057 copy_byte
= atoi (optarg
);
5059 fatal (_("byte number must be non-negative"));
5063 input_arch
= bfd_scan_arch (optarg
);
5064 if (input_arch
== NULL
)
5065 fatal (_("architecture %s unknown"), optarg
);
5071 interleave
= atoi (optarg
);
5073 fatal (_("interleave must be positive"));
5079 case OPTION_INTERLEAVE_WIDTH
:
5080 copy_width
= atoi (optarg
);
5082 fatal(_("interleave width must be positive"));
5086 case 's': /* "source" - 'I' is preferred */
5087 input_target
= optarg
;
5091 case 'd': /* "destination" - 'O' is preferred */
5092 output_target
= optarg
;
5096 input_target
= output_target
= optarg
;
5100 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5101 sections_copied
= TRUE
;
5105 handle_remove_section_option (optarg
);
5108 case OPTION_KEEP_SECTION
:
5109 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5112 case OPTION_REMOVE_RELOCS
:
5113 handle_remove_relocations_option (optarg
);
5117 strip_symbols
= STRIP_ALL
;
5121 strip_symbols
= STRIP_DEBUG
;
5124 case OPTION_STRIP_DWO
:
5125 strip_symbols
= STRIP_DWO
;
5128 case OPTION_STRIP_UNNEEDED
:
5129 strip_symbols
= STRIP_UNNEEDED
;
5132 case OPTION_ONLY_KEEP_DEBUG
:
5133 strip_symbols
= STRIP_NONDEBUG
;
5136 case OPTION_KEEP_FILE_SYMBOLS
:
5137 keep_file_symbols
= 1;
5140 case OPTION_ADD_GNU_DEBUGLINK
:
5141 long_section_names
= ENABLE
;
5142 gnu_debuglink_filename
= optarg
;
5146 add_specific_symbol (optarg
, keep_specific_htab
);
5152 case OPTION_NO_MERGE_NOTES
:
5153 merge_notes
= FALSE
;
5157 add_specific_symbol (optarg
, strip_specific_htab
);
5160 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5161 add_specific_symbol (optarg
, strip_unneeded_htab
);
5165 add_specific_symbol (optarg
, localize_specific_htab
);
5168 case OPTION_GLOBALIZE_SYMBOL
:
5169 use_globalize
= TRUE
;
5170 add_specific_symbol (optarg
, globalize_specific_htab
);
5174 use_keep_global
= TRUE
;
5175 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5179 add_specific_symbol (optarg
, weaken_specific_htab
);
5183 preserve_dates
= TRUE
;
5187 deterministic
= TRUE
;
5191 deterministic
= FALSE
;
5199 discard_locals
= LOCALS_ALL
;
5203 discard_locals
= LOCALS_START_L
;
5211 show_version
= TRUE
;
5214 case OPTION_FORMATS_INFO
:
5215 formats_info
= TRUE
;
5222 case OPTION_ADD_SECTION
:
5223 add_sections
= init_section_add (optarg
, add_sections
,
5225 section_add_load_file (add_sections
);
5228 case OPTION_UPDATE_SECTION
:
5229 update_sections
= init_section_add (optarg
, update_sections
,
5230 "--update-section");
5231 section_add_load_file (update_sections
);
5234 case OPTION_DUMP_SECTION
:
5235 dump_sections
= init_section_add (optarg
, dump_sections
,
5239 case OPTION_ADD_SYMBOL
:
5242 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5244 newsym
->next
= NULL
;
5245 s
= strchr (optarg
, '=');
5247 fatal (_("bad format for %s"), "--add-symbol");
5248 t
= strchr (s
+ 1, ':');
5250 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5253 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5254 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5258 newsym
->section
= NULL
;
5259 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5263 t
= strchr (t
+ 1, ',');
5264 newsym
->othersym
= NULL
;
5266 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5268 newsym
->flags
= BSF_GLOBAL
;
5270 /* Keep 'othersym' symbols at the front of the list. */
5271 if (newsym
->othersym
)
5273 newsym
->next
= add_sym_list
;
5275 add_sym_tail
= &newsym
->next
;
5276 add_sym_list
= newsym
;
5280 *add_sym_tail
= newsym
;
5281 add_sym_tail
= &newsym
->next
;
5287 case OPTION_CHANGE_START
:
5288 change_start
= parse_vma (optarg
, "--change-start");
5291 case OPTION_CHANGE_SECTION_ADDRESS
:
5292 case OPTION_CHANGE_SECTION_LMA
:
5293 case OPTION_CHANGE_SECTION_VMA
:
5295 struct section_list
* p
;
5296 unsigned int context
= 0;
5300 char *option
= NULL
;
5305 case OPTION_CHANGE_SECTION_ADDRESS
:
5306 option
= "--change-section-address";
5307 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5309 case OPTION_CHANGE_SECTION_LMA
:
5310 option
= "--change-section-lma";
5311 context
= SECTION_CONTEXT_ALTER_LMA
;
5313 case OPTION_CHANGE_SECTION_VMA
:
5314 option
= "--change-section-vma";
5315 context
= SECTION_CONTEXT_ALTER_VMA
;
5319 s
= strchr (optarg
, '=');
5322 s
= strchr (optarg
, '+');
5325 s
= strchr (optarg
, '-');
5327 fatal (_("bad format for %s"), option
);
5332 /* Correct the context. */
5335 case OPTION_CHANGE_SECTION_ADDRESS
:
5336 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5338 case OPTION_CHANGE_SECTION_LMA
:
5339 context
= SECTION_CONTEXT_SET_LMA
;
5341 case OPTION_CHANGE_SECTION_VMA
:
5342 context
= SECTION_CONTEXT_SET_VMA
;
5348 name
= (char *) xmalloc (len
+ 1);
5349 strncpy (name
, optarg
, len
);
5352 p
= find_section_list (name
, TRUE
, context
);
5354 val
= parse_vma (s
+ 1, option
);
5360 case OPTION_CHANGE_SECTION_ADDRESS
:
5364 case OPTION_CHANGE_SECTION_LMA
:
5368 case OPTION_CHANGE_SECTION_VMA
:
5375 case OPTION_CHANGE_ADDRESSES
:
5376 change_section_address
= parse_vma (optarg
, "--change-addresses");
5377 change_start
= change_section_address
;
5380 case OPTION_CHANGE_WARNINGS
:
5384 case OPTION_CHANGE_LEADING_CHAR
:
5385 change_leading_char
= TRUE
;
5388 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5391 if (strcasecmp (optarg
, "none") == 0)
5392 do_debug_sections
= decompress
;
5393 else if (strcasecmp (optarg
, "zlib") == 0)
5394 do_debug_sections
= compress_zlib
;
5395 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5396 do_debug_sections
= compress_gnu_zlib
;
5397 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5398 do_debug_sections
= compress_gabi_zlib
;
5400 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5404 do_debug_sections
= compress
;
5407 case OPTION_DEBUGGING
:
5408 convert_debugging
= TRUE
;
5411 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5412 do_debug_sections
= decompress
;
5415 case OPTION_ELF_STT_COMMON
:
5416 if (strcasecmp (optarg
, "yes") == 0)
5417 do_elf_stt_common
= elf_stt_common
;
5418 else if (strcasecmp (optarg
, "no") == 0)
5419 do_elf_stt_common
= no_elf_stt_common
;
5421 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5425 case OPTION_GAP_FILL
:
5427 bfd_vma gap_fill_vma
;
5429 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5430 gap_fill
= (bfd_byte
) gap_fill_vma
;
5431 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5435 sprintf_vma (buff
, gap_fill_vma
);
5437 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5440 gap_fill_set
= TRUE
;
5444 case OPTION_NO_CHANGE_WARNINGS
:
5445 change_warn
= FALSE
;
5449 pad_to
= parse_vma (optarg
, "--pad-to");
5453 case OPTION_REMOVE_LEADING_CHAR
:
5454 remove_leading_char
= TRUE
;
5457 case OPTION_REDEFINE_SYM
:
5459 /* Insert this redefinition onto redefine_specific_htab. */
5463 const char *nextarg
;
5464 char *source
, *target
;
5466 s
= strchr (optarg
, '=');
5468 fatal (_("bad format for %s"), "--redefine-sym");
5471 source
= (char *) xmalloc (len
+ 1);
5472 strncpy (source
, optarg
, len
);
5476 len
= strlen (nextarg
);
5477 target
= (char *) xmalloc (len
+ 1);
5478 strcpy (target
, nextarg
);
5480 add_redefine_and_check ("--redefine-sym", source
, target
);
5487 case OPTION_REDEFINE_SYMS
:
5488 add_redefine_syms_file (optarg
);
5491 case OPTION_SET_SECTION_FLAGS
:
5493 struct section_list
*p
;
5498 s
= strchr (optarg
, '=');
5500 fatal (_("bad format for %s"), "--set-section-flags");
5503 name
= (char *) xmalloc (len
+ 1);
5504 strncpy (name
, optarg
, len
);
5507 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5509 p
->flags
= parse_flags (s
+ 1);
5513 case OPTION_SET_SECTION_ALIGNMENT
:
5515 struct section_list
*p
;
5521 s
= strchr (optarg
, '=');
5523 fatal (_("bad format for --set-section-alignment: argument needed"));
5525 align
= atoi (s
+ 1);
5527 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5529 /* Convert integer alignment into a power-of-two alignment. */
5531 while ((align
& 1) == 0)
5538 /* Number has more than on 1, i.e. wasn't a power of 2. */
5539 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5541 /* Add the alignment setting to the section list. */
5543 name
= (char *) xmalloc (len
+ 1);
5544 strncpy (name
, optarg
, len
);
5547 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5549 p
->alignment
= palign
;
5553 case OPTION_RENAME_SECTION
:
5556 const char *eq
, *fl
;
5561 eq
= strchr (optarg
, '=');
5563 fatal (_("bad format for %s"), "--rename-section");
5567 fatal (_("bad format for %s"), "--rename-section");
5569 old_name
= (char *) xmalloc (len
+ 1);
5570 strncpy (old_name
, optarg
, len
);
5574 fl
= strchr (eq
, ',');
5577 flags
= parse_flags (fl
+ 1);
5587 fatal (_("bad format for %s"), "--rename-section");
5589 new_name
= (char *) xmalloc (len
+ 1);
5590 strncpy (new_name
, eq
, len
);
5593 add_section_rename (old_name
, new_name
, flags
);
5597 case OPTION_SET_START
:
5598 set_start
= parse_vma (optarg
, "--set-start");
5599 set_start_set
= TRUE
;
5602 case OPTION_SREC_LEN
:
5603 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5606 case OPTION_SREC_FORCES3
:
5607 _bfd_srec_forceS3
= TRUE
;
5610 case OPTION_STRIP_SYMBOLS
:
5611 add_specific_symbols (optarg
, strip_specific_htab
,
5612 &strip_specific_buffer
);
5615 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5616 add_specific_symbols (optarg
, strip_unneeded_htab
,
5617 &strip_unneeded_buffer
);
5620 case OPTION_KEEP_SYMBOLS
:
5621 add_specific_symbols (optarg
, keep_specific_htab
,
5622 &keep_specific_buffer
);
5625 case OPTION_LOCALIZE_HIDDEN
:
5626 localize_hidden
= TRUE
;
5629 case OPTION_LOCALIZE_SYMBOLS
:
5630 add_specific_symbols (optarg
, localize_specific_htab
,
5631 &localize_specific_buffer
);
5634 case OPTION_LONG_SECTION_NAMES
:
5635 if (!strcmp ("enable", optarg
))
5636 long_section_names
= ENABLE
;
5637 else if (!strcmp ("disable", optarg
))
5638 long_section_names
= DISABLE
;
5639 else if (!strcmp ("keep", optarg
))
5640 long_section_names
= KEEP
;
5642 fatal (_("unknown long section names option '%s'"), optarg
);
5645 case OPTION_GLOBALIZE_SYMBOLS
:
5646 use_globalize
= TRUE
;
5647 add_specific_symbols (optarg
, globalize_specific_htab
,
5648 &globalize_specific_buffer
);
5651 case OPTION_KEEPGLOBAL_SYMBOLS
:
5652 use_keep_global
= TRUE
;
5653 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5654 &keepglobal_specific_buffer
);
5657 case OPTION_WEAKEN_SYMBOLS
:
5658 add_specific_symbols (optarg
, weaken_specific_htab
,
5659 &weaken_specific_buffer
);
5662 case OPTION_ALT_MACH_CODE
:
5663 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5664 if (use_alt_mach_code
== 0)
5665 fatal (_("unable to parse alternative machine code"));
5668 case OPTION_PREFIX_SYMBOLS
:
5669 prefix_symbols_string
= optarg
;
5672 case OPTION_PREFIX_SECTIONS
:
5673 prefix_sections_string
= optarg
;
5676 case OPTION_PREFIX_ALLOC_SECTIONS
:
5677 prefix_alloc_sections_string
= optarg
;
5680 case OPTION_READONLY_TEXT
:
5681 bfd_flags_to_set
|= WP_TEXT
;
5682 bfd_flags_to_clear
&= ~WP_TEXT
;
5685 case OPTION_WRITABLE_TEXT
:
5686 bfd_flags_to_clear
|= WP_TEXT
;
5687 bfd_flags_to_set
&= ~WP_TEXT
;
5691 bfd_flags_to_set
|= D_PAGED
;
5692 bfd_flags_to_clear
&= ~D_PAGED
;
5696 bfd_flags_to_clear
|= D_PAGED
;
5697 bfd_flags_to_set
&= ~D_PAGED
;
5700 case OPTION_EXTRACT_DWO
:
5701 strip_symbols
= STRIP_NONDWO
;
5704 case OPTION_EXTRACT_SYMBOL
:
5705 extract_symbol
= TRUE
;
5708 case OPTION_REVERSE_BYTES
:
5710 int prev
= reverse_bytes
;
5712 reverse_bytes
= atoi (optarg
);
5713 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5714 fatal (_("number of bytes to reverse must be positive and even"));
5716 if (prev
&& prev
!= reverse_bytes
)
5717 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5722 case OPTION_FILE_ALIGNMENT
:
5723 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5729 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5731 || (*end
!= '.' && *end
!= '\0'))
5732 non_fatal (_("%s: invalid reserve value for --heap"),
5734 else if (*end
!= '\0')
5736 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5738 non_fatal (_("%s: invalid commit value for --heap"),
5744 case OPTION_IMAGE_BASE
:
5745 pe_image_base
= parse_vma (optarg
, "--image-base");
5748 case OPTION_PE_SECTION_ALIGNMENT
:
5749 pe_section_alignment
= parse_vma (optarg
,
5750 "--section-alignment");
5753 case OPTION_SUBSYSTEM
:
5754 set_pe_subsystem (optarg
);
5760 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5762 || (*end
!= '.' && *end
!= '\0'))
5763 non_fatal (_("%s: invalid reserve value for --stack"),
5765 else if (*end
!= '\0')
5767 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5769 non_fatal (_("%s: invalid commit value for --stack"),
5775 case OPTION_VERILOG_DATA_WIDTH
:
5776 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5777 if (VerilogDataWidth
< 1)
5778 fatal (_("verilog data width must be at least 1 byte"));
5782 /* We've been given a long option. */
5787 copy_usage (stdout
, 0);
5790 copy_usage (stderr
, 1);
5794 if (use_globalize
&& use_keep_global
)
5795 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5804 print_version ("objcopy");
5806 if (interleave
&& copy_byte
== -1)
5807 fatal (_("interleave start byte must be set with --byte"));
5809 if (copy_byte
>= interleave
)
5810 fatal (_("byte number must be less than interleave"));
5812 if (copy_width
> interleave
- copy_byte
)
5813 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5815 if (optind
== argc
|| optind
+ 2 < argc
)
5816 copy_usage (stderr
, 1);
5818 input_filename
= argv
[optind
];
5819 if (optind
+ 1 < argc
)
5820 output_filename
= argv
[optind
+ 1];
5822 default_deterministic ();
5824 /* Default is to strip no symbols. */
5825 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5826 strip_symbols
= STRIP_NONE
;
5828 if (output_target
== NULL
)
5829 output_target
= input_target
;
5831 /* Convert input EFI target to PEI target. */
5832 if (input_target
!= NULL
5833 && strncmp (input_target
, "efi-", 4) == 0)
5837 efi
= xstrdup (output_target
+ 4);
5838 if (strncmp (efi
, "bsdrv-", 6) == 0
5839 || strncmp (efi
, "rtdrv-", 6) == 0)
5841 else if (strncmp (efi
, "app-", 4) != 0)
5842 fatal (_("unknown input EFI target: %s"), input_target
);
5845 convert_efi_target (efi
);
5848 /* Convert output EFI target to PEI target. */
5849 if (output_target
!= NULL
5850 && strncmp (output_target
, "efi-", 4) == 0)
5854 efi
= xstrdup (output_target
+ 4);
5855 if (strncmp (efi
, "app-", 4) == 0)
5857 if (pe_subsystem
== -1)
5858 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5860 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5862 if (pe_subsystem
== -1)
5863 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5866 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5868 if (pe_subsystem
== -1)
5869 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5873 fatal (_("unknown output EFI target: %s"), output_target
);
5875 if (pe_file_alignment
== (bfd_vma
) -1)
5876 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5877 if (pe_section_alignment
== (bfd_vma
) -1)
5878 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5880 output_target
= efi
;
5881 convert_efi_target (efi
);
5885 if (stat (input_filename
, & statbuf
) < 0)
5886 fatal (_("warning: could not locate '%s'. System error message: %s"),
5887 input_filename
, strerror (errno
));
5889 /* If there is no destination file, or the source and destination files
5890 are the same, then create a temp and rename the result into the input. */
5891 if (output_filename
== NULL
5892 || filename_cmp (input_filename
, output_filename
) == 0)
5893 tmpname
= make_tempname (input_filename
);
5895 tmpname
= output_filename
;
5897 if (tmpname
== NULL
)
5898 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5899 input_filename
, strerror (errno
));
5901 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5905 set_times (tmpname
, &statbuf
);
5906 if (tmpname
!= output_filename
)
5907 status
= (smart_rename (tmpname
, input_filename
,
5908 preserve_dates
) != 0);
5911 unlink_if_ordinary (tmpname
);
5913 if (tmpname
!= output_filename
)
5918 struct section_list
*p
;
5920 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5924 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5928 sprintf_vma (buff
, p
->vma_val
);
5930 /* xgettext:c-format */
5931 non_fatal (_("%s %s%c0x%s never used"),
5932 "--change-section-vma",
5934 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5938 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5942 sprintf_vma (buff
, p
->lma_val
);
5944 /* xgettext:c-format */
5945 non_fatal (_("%s %s%c0x%s never used"),
5946 "--change-section-lma",
5948 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5955 if (strip_specific_buffer
)
5956 free (strip_specific_buffer
);
5958 if (strip_unneeded_buffer
)
5959 free (strip_unneeded_buffer
);
5961 if (keep_specific_buffer
)
5962 free (keep_specific_buffer
);
5964 if (localize_specific_buffer
)
5965 free (globalize_specific_buffer
);
5967 if (globalize_specific_buffer
)
5968 free (globalize_specific_buffer
);
5970 if (keepglobal_specific_buffer
)
5971 free (keepglobal_specific_buffer
);
5973 if (weaken_specific_buffer
)
5974 free (weaken_specific_buffer
);
5980 main (int argc
, char *argv
[])
5982 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5983 setlocale (LC_MESSAGES
, "");
5985 #if defined (HAVE_SETLOCALE)
5986 setlocale (LC_CTYPE
, "");
5988 bindtextdomain (PACKAGE
, LOCALEDIR
);
5989 textdomain (PACKAGE
);
5991 program_name
= argv
[0];
5992 xmalloc_set_program_name (program_name
);
5994 START_PROGRESS (program_name
, 0);
5996 expandargv (&argc
, &argv
);
5998 strip_symbols
= STRIP_UNDEF
;
5999 discard_locals
= LOCALS_UNDEF
;
6001 if (bfd_init () != BFD_INIT_MAGIC
)
6002 fatal (_("fatal error: libbfd ABI mismatch"));
6003 set_default_bfd_target ();
6007 int i
= strlen (program_name
);
6008 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6009 /* Drop the .exe suffix, if any. */
6010 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6013 program_name
[i
] = '\0';
6016 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6019 create_symbol_htabs ();
6022 bfd_set_error_program_name (argv
[0]);
6025 strip_main (argc
, argv
);
6027 copy_main (argc
, argv
);
6029 END_PROGRESS (program_name
);