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
->the_bfd
, 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. */
3016 f
= fopen (pdump
->filename
, FOPEN_WB
);
3019 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3020 _("could not open section dump file"));
3024 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3026 if (fwrite (contents
, 1, size
, f
) != size
)
3028 non_fatal (_("error writing section contents to %s (error: %s)"),
3037 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3038 _("could not retrieve section contents"));
3045 if (gnu_debuglink_filename
!= NULL
)
3047 /* PR 15125: Give a helpful warning message if
3048 the debuglink section already exists, and
3049 allow the rest of the copy to complete. */
3050 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3052 non_fatal (_("%s: debuglink section already exists"),
3053 bfd_get_filename (obfd
));
3054 gnu_debuglink_filename
= NULL
;
3058 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3059 (obfd
, gnu_debuglink_filename
);
3061 if (gnu_debuglink_section
== NULL
)
3063 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3064 _("cannot create debug link section `%s'"),
3065 gnu_debuglink_filename
);
3069 /* Special processing for PE format files. We
3070 have no way to distinguish PE from COFF here. */
3071 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3073 bfd_vma debuglink_vma
;
3074 asection
* highest_section
;
3076 /* The PE spec requires that all sections be adjacent and sorted
3077 in ascending order of VMA. It also specifies that debug
3078 sections should be last. This is despite the fact that debug
3079 sections are not loaded into memory and so in theory have no
3082 This means that the debuglink section must be given a non-zero
3083 VMA which makes it contiguous with other debug sections. So
3084 walk the current section list, find the section with the
3085 highest VMA and start the debuglink section after that one. */
3086 for (osec
= obfd
->sections
, highest_section
= NULL
;
3090 && (highest_section
== NULL
3091 || osec
->vma
> highest_section
->vma
))
3092 highest_section
= osec
;
3094 if (highest_section
)
3095 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3096 + highest_section
->size
,
3097 /* FIXME: We ought to be using
3098 COFF_PAGE_SIZE here or maybe
3099 bfd_section_alignment() (if it
3100 was set) but since this is for PE
3101 and we know the required alignment
3102 it is easier just to hard code it. */
3105 /* Umm, not sure what to do in this case. */
3106 debuglink_vma
= 0x1000;
3108 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3113 num_sec
= bfd_count_sections (obfd
);
3115 && (gap_fill_set
|| pad_to_set
))
3119 /* We must fill in gaps between the sections and/or we must pad
3120 the last section to a specified address. We do this by
3121 grabbing a list of the sections, sorting them by VMA, and
3122 increasing the section sizes as required to fill the gaps.
3123 We write out the gap contents below. */
3125 osections
= xmalloc (num_sec
* sizeof (*osections
));
3127 bfd_map_over_sections (obfd
, get_sections
, &set
);
3129 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3131 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3132 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3136 for (i
= 0; i
< num_sec
- 1; i
++)
3139 bfd_size_type size
; /* Octets. */
3140 bfd_vma gap_start
, gap_stop
; /* Octets. */
3141 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3142 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3144 flags
= bfd_section_flags (osections
[i
]);
3145 if ((flags
& SEC_HAS_CONTENTS
) == 0
3146 || (flags
& SEC_LOAD
) == 0)
3149 size
= bfd_section_size (osections
[i
]);
3150 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3151 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3152 if (gap_start
< gap_stop
)
3154 if (!bfd_set_section_size (osections
[i
],
3155 size
+ (gap_stop
- gap_start
)))
3157 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3158 _("Can't fill gap after section"));
3162 gaps
[i
] = gap_stop
- gap_start
;
3163 if (max_gap
< gap_stop
- gap_start
)
3164 max_gap
= gap_stop
- gap_start
;
3171 bfd_vma lma
; /* Octets. */
3172 bfd_size_type size
; /* Octets. */
3173 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3174 bfd_vma _pad_to
= pad_to
* opb
;
3176 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3177 size
= bfd_section_size (osections
[num_sec
- 1]);
3178 if (lma
+ size
< _pad_to
)
3180 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3182 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3183 _("can't add padding"));
3188 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3189 if (max_gap
< _pad_to
- (lma
+ size
))
3190 max_gap
= _pad_to
- (lma
+ size
);
3196 /* Symbol filtering must happen after the output sections
3197 have been created, but before their contents are set. */
3199 if (convert_debugging
)
3200 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3202 if (strip_symbols
== STRIP_DEBUG
3203 || strip_symbols
== STRIP_ALL
3204 || strip_symbols
== STRIP_UNNEEDED
3205 || strip_symbols
== STRIP_NONDEBUG
3206 || strip_symbols
== STRIP_DWO
3207 || strip_symbols
== STRIP_NONDWO
3208 || discard_locals
!= LOCALS_UNDEF
3210 || htab_elements (strip_specific_htab
) != 0
3211 || htab_elements (keep_specific_htab
) != 0
3212 || htab_elements (localize_specific_htab
) != 0
3213 || htab_elements (globalize_specific_htab
) != 0
3214 || htab_elements (keepglobal_specific_htab
) != 0
3215 || htab_elements (weaken_specific_htab
) != 0
3216 || htab_elements (redefine_specific_htab
) != 0
3217 || prefix_symbols_string
3220 || convert_debugging
3221 || change_leading_char
3222 || remove_leading_char
3223 || section_rename_list
3227 /* Mark symbols used in output relocations so that they
3228 are kept, even if they are local labels or static symbols.
3230 Note we iterate over the input sections examining their
3231 relocations since the relocations for the output sections
3232 haven't been set yet. mark_symbols_used_in_relocations will
3233 ignore input sections which have no corresponding output
3235 if (strip_symbols
!= STRIP_ALL
)
3237 bfd_set_error (bfd_error_no_error
);
3238 bfd_map_over_sections (ibfd
,
3239 mark_symbols_used_in_relocations
,
3241 if (bfd_get_error () != bfd_error_no_error
)
3248 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3249 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3252 if (convert_debugging
&& dhandle
!= NULL
)
3256 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3259 dhandle
= NULL
; /* Paranoia... */
3268 bfd_set_symtab (obfd
, osympp
, symcount
);
3270 /* This has to happen before section positions are set. */
3271 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3273 /* This has to happen after the symbol table has been set. */
3274 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3276 if (add_sections
!= NULL
)
3278 struct section_add
*padd
;
3280 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3282 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3285 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3291 if (update_sections
!= NULL
)
3293 struct section_add
*pupdate
;
3295 for (pupdate
= update_sections
;
3297 pupdate
= pupdate
->next
)
3299 osec
= pupdate
->section
->output_section
;
3300 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3303 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3309 if (merged_note_sections
!= NULL
)
3311 merged_note_section
* merged
= NULL
;
3313 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3315 if (! is_mergeable_note_section (obfd
, osec
))
3319 merged
= merged_note_sections
;
3321 /* It is likely that output sections are in the same order
3322 as the input sections, but do not assume that this is
3324 if (strcmp (bfd_section_name (merged
->sec
),
3325 bfd_section_name (osec
)) != 0)
3327 for (merged
= merged_note_sections
;
3329 merged
= merged
->next
)
3330 if (strcmp (bfd_section_name (merged
->sec
),
3331 bfd_section_name (osec
)) == 0)
3336 bfd_nonfatal_message
3338 _("error: failed to locate merged notes"));
3343 if (merged
->contents
== NULL
)
3345 bfd_nonfatal_message
3347 _("error: failed to merge notes"));
3351 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3354 bfd_nonfatal_message
3356 _("error: failed to copy merged notes into output"));
3360 merged
= merged
->next
;
3363 /* Free the memory. */
3364 merged_note_section
* next
;
3365 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3367 next
= merged
->next
;
3368 free (merged
->contents
);
3372 else if (merge_notes
&& ! is_strip
)
3373 non_fatal (_("%s: Could not find any mergeable note sections"),
3374 bfd_get_filename (ibfd
));
3376 if (gnu_debuglink_filename
!= NULL
)
3378 if (! bfd_fill_in_gnu_debuglink_section
3379 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3381 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3382 _("cannot fill debug link section `%s'"),
3383 gnu_debuglink_filename
);
3392 /* Fill in the gaps. */
3395 buf
= (bfd_byte
*) xmalloc (max_gap
);
3396 memset (buf
, gap_fill
, max_gap
);
3398 for (i
= 0; i
< num_sec
; i
++)
3406 off
= bfd_section_size (osections
[i
]) - left
;
3417 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3420 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3436 /* Allow the BFD backend to copy any private data it understands
3437 from the input BFD to the output BFD. This is done last to
3438 permit the routine to look at the filtered symbol table, which is
3439 important for the ECOFF code at least. */
3440 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3442 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3443 _("error copying private BFD data"));
3447 /* Switch to the alternate machine code. We have to do this at the
3448 very end, because we only initialize the header when we create
3449 the first section. */
3450 if (use_alt_mach_code
!= 0)
3452 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3454 non_fatal (_("this target does not support %lu alternative machine codes"),
3456 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3458 non_fatal (_("treating that number as an absolute e_machine value instead"));
3459 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3462 non_fatal (_("ignoring the alternative value"));
3469 /* Read each archive element in turn from IBFD, copy the
3470 contents to temp file, and keep the temp file handle.
3471 If 'force_output_target' is TRUE then make sure that
3472 all elements in the new archive are of the type
3476 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3477 bfd_boolean force_output_target
,
3478 const bfd_arch_info_type
*input_arch
)
3482 struct name_list
*next
;
3486 bfd
**ptr
= &obfd
->archive_head
;
3489 const char *filename
;
3491 /* PR 24281: It is not clear what should happen when copying a thin archive.
3492 One part is straight forward - if the output archive is in a different
3493 directory from the input archive then any relative paths in the library
3494 should be adjusted to the new location. But if any transformation
3495 options are active (eg strip, rename, add, etc) then the implication is
3496 that these should be applied to the files pointed to by the archive.
3497 But since objcopy is not destructive, this means that new files must be
3498 created, and there is no guidance for the names of the new files. (Plus
3499 this conflicts with one of the goals of thin libraries - only taking up
3500 a minimal amount of space in the file system).
3502 So for now we fail if an attempt is made to copy such libraries. */
3503 if (ibfd
->is_thin_archive
)
3506 bfd_set_error (bfd_error_invalid_operation
);
3507 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3508 _("sorry: copying thin archives is not currently supported"));
3512 /* Make a temp directory to hold the contents. */
3513 dir
= make_tempdir (bfd_get_filename (obfd
));
3515 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3518 if (strip_symbols
== STRIP_ALL
)
3519 obfd
->has_armap
= FALSE
;
3521 obfd
->has_armap
= ibfd
->has_armap
;
3522 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3525 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3529 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3531 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3534 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3535 goto cleanup_and_exit
;
3538 while (!status
&& this_element
!= NULL
)
3544 int stat_status
= 0;
3545 bfd_boolean del
= TRUE
;
3546 bfd_boolean ok_object
;
3548 /* PR binutils/17533: Do not allow directory traversal
3549 outside of the current directory tree by archive members. */
3550 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3552 non_fatal (_("illegal pathname found in archive member: %s"),
3553 bfd_get_filename (this_element
));
3555 goto cleanup_and_exit
;
3558 /* Create an output file for this member. */
3559 output_name
= concat (dir
, "/",
3560 bfd_get_filename (this_element
), (char *) 0);
3562 /* If the file already exists, make another temp dir. */
3563 if (stat (output_name
, &buf
) >= 0)
3565 char * tmpdir
= make_tempdir (output_name
);
3570 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3573 goto cleanup_and_exit
;
3576 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3581 output_name
= concat (tmpdir
, "/",
3582 bfd_get_filename (this_element
), (char *) 0);
3587 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3589 if (stat_status
!= 0)
3590 non_fatal (_("internal stat error on %s"),
3591 bfd_get_filename (this_element
));
3594 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3595 l
->name
= output_name
;
3600 ok_object
= bfd_check_format (this_element
, bfd_object
);
3602 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3603 _("Unable to recognise the format of file"));
3605 /* PR binutils/3110: Cope with archives
3606 containing multiple target types. */
3607 if (force_output_target
|| !ok_object
)
3608 output_bfd
= bfd_openw (output_name
, output_target
);
3610 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3612 if (output_bfd
== NULL
)
3614 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3616 goto cleanup_and_exit
;
3621 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3623 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3624 /* Try again as an unknown object file. */
3626 else if (!bfd_close (output_bfd
))
3628 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3629 /* Error in new object file. Don't change archive. */
3636 del
= !copy_unknown_object (this_element
, output_bfd
);
3637 if (!bfd_close_all_done (output_bfd
))
3639 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3640 /* Error in new object file. Don't change archive. */
3647 unlink (output_name
);
3652 if (preserve_dates
&& stat_status
== 0)
3653 set_times (output_name
, &buf
);
3655 /* Open the newly output file and attach to our list. */
3656 output_bfd
= bfd_openr (output_name
, output_target
);
3658 l
->obfd
= output_bfd
;
3661 ptr
= &output_bfd
->archive_next
;
3663 last_element
= this_element
;
3665 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3667 bfd_close (last_element
);
3672 filename
= bfd_get_filename (obfd
);
3673 if (!bfd_close (obfd
))
3676 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3679 filename
= bfd_get_filename (ibfd
);
3680 if (!bfd_close (ibfd
))
3683 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3687 /* Delete all the files that we opened. */
3689 struct name_list
* next
;
3691 for (l
= list
; l
!= NULL
; l
= next
)
3693 if (l
->obfd
== NULL
)
3697 bfd_close (l
->obfd
);
3709 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3711 /* This is only relevant to Coff targets. */
3712 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3715 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3716 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3717 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3721 /* The top-level control. */
3724 copy_file (const char *input_filename
, const char *output_filename
,
3725 const char *input_target
, const char *output_target
,
3726 const bfd_arch_info_type
*input_arch
)
3729 char **obj_matching
;
3730 char **core_matching
;
3731 off_t size
= get_file_size (input_filename
);
3736 non_fatal (_("error: the input file '%s' is empty"),
3742 /* To allow us to do "strip *" without dying on the first
3743 non-object file, failures are nonfatal. */
3744 ibfd
= bfd_openr (input_filename
, input_target
);
3747 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3752 switch (do_debug_sections
)
3756 case compress_gnu_zlib
:
3757 case compress_gabi_zlib
:
3758 ibfd
->flags
|= BFD_COMPRESS
;
3759 /* Don't check if input is ELF here since this information is
3760 only available after bfd_check_format_matches is called. */
3761 if (do_debug_sections
!= compress_gnu_zlib
)
3762 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3765 ibfd
->flags
|= BFD_DECOMPRESS
;
3771 switch (do_elf_stt_common
)
3773 case elf_stt_common
:
3774 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3777 case no_elf_stt_common
:
3778 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3784 if (bfd_check_format (ibfd
, bfd_archive
))
3786 bfd_boolean force_output_target
;
3789 /* bfd_get_target does not return the correct value until
3790 bfd_check_format succeeds. */
3791 if (output_target
== NULL
)
3793 output_target
= bfd_get_target (ibfd
);
3794 force_output_target
= FALSE
;
3797 force_output_target
= TRUE
;
3799 obfd
= bfd_openw (output_filename
, output_target
);
3802 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3807 if (gnu_debuglink_filename
!= NULL
)
3809 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3810 bfd_get_filename (ibfd
));
3811 gnu_debuglink_filename
= NULL
;
3814 /* This is a no-op on non-Coff targets. */
3815 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3817 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3819 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3824 /* bfd_get_target does not return the correct value until
3825 bfd_check_format succeeds. */
3826 if (output_target
== NULL
)
3827 output_target
= bfd_get_target (ibfd
);
3829 obfd
= bfd_openw (output_filename
, output_target
);
3832 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3836 /* This is a no-op on non-Coff targets. */
3837 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3839 if (! copy_object (ibfd
, obfd
, input_arch
))
3842 /* PR 17512: file: 0f15796a.
3843 If the file could not be copied it may not be in a writeable
3844 state. So use bfd_close_all_done to avoid the possibility of
3845 writing uninitialised data into the file. */
3846 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3849 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3853 if (!bfd_close (ibfd
))
3856 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3862 bfd_error_type obj_error
= bfd_get_error ();
3863 bfd_error_type core_error
;
3865 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3867 /* This probably can't happen.. */
3868 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3869 free (obj_matching
);
3873 core_error
= bfd_get_error ();
3874 /* Report the object error in preference to the core error. */
3875 if (obj_error
!= core_error
)
3876 bfd_set_error (obj_error
);
3878 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3880 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3882 list_matching_formats (obj_matching
);
3883 free (obj_matching
);
3885 if (core_error
== bfd_error_file_ambiguously_recognized
)
3887 list_matching_formats (core_matching
);
3888 free (core_matching
);
3895 /* Add a name to the section renaming list. */
3898 add_section_rename (const char * old_name
, const char * new_name
,
3901 section_rename
* srename
;
3903 /* Check for conflicts first. */
3904 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3905 if (strcmp (srename
->old_name
, old_name
) == 0)
3907 /* Silently ignore duplicate definitions. */
3908 if (strcmp (srename
->new_name
, new_name
) == 0
3909 && srename
->flags
== flags
)
3912 fatal (_("Multiple renames of section %s"), old_name
);
3915 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3917 srename
->old_name
= old_name
;
3918 srename
->new_name
= new_name
;
3919 srename
->flags
= flags
;
3920 srename
->next
= section_rename_list
;
3922 section_rename_list
= srename
;
3925 /* Check the section rename list for a new name of the input section
3926 called OLD_NAME. Returns the new name if one is found and sets
3927 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3930 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3932 const section_rename
*srename
;
3934 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3935 if (strcmp (srename
->old_name
, old_name
) == 0)
3937 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3938 *returned_flags
= srename
->flags
;
3940 return srename
->new_name
;
3946 /* Once each of the sections is copied, we may still need to do some
3947 finalization work for private section headers. Do that here. */
3950 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3952 /* Allow the BFD backend to copy any private data it understands
3953 from the input section to the output section. */
3954 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3957 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3958 _("error in private header data"));
3962 /* All went well. */
3966 /* Create a section in OBFD with the same
3967 name and attributes as ISECTION in IBFD. */
3970 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3972 bfd
*obfd
= (bfd
*) obfdarg
;
3973 struct section_list
*p
;
3981 const char * new_name
;
3982 char *prefix
= NULL
;
3983 bfd_boolean make_nobits
;
3984 unsigned int alignment
;
3986 if (is_strip_section (ibfd
, isection
))
3989 /* Get the, possibly new, name of the output section. */
3990 name
= bfd_section_name (isection
);
3991 flags
= bfd_section_flags (isection
);
3992 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3994 flags
&= bfd_applicable_section_flags (ibfd
);
3995 flags
&= bfd_applicable_section_flags (obfd
);
3997 new_name
= find_section_rename (name
, &flags
);
3998 if (new_name
!= name
)
4001 flags
= check_new_section_flags (flags
, obfd
, name
);
4004 /* Prefix sections. */
4005 if (prefix_alloc_sections_string
4006 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
4007 prefix
= prefix_alloc_sections_string
;
4008 else if (prefix_sections_string
)
4009 prefix
= prefix_sections_string
;
4015 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4021 make_nobits
= FALSE
;
4023 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4024 SECTION_CONTEXT_SET_FLAGS
);
4027 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4028 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4030 else if (strip_symbols
== STRIP_NONDEBUG
4031 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4032 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4034 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4035 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4039 /* Twiddle the input section flags so that it seems to
4040 elf.c:copy_private_bfd_data that section flags have not
4041 changed between input and output sections. This hack
4042 prevents wholesale rewriting of the program headers. */
4043 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4047 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4049 if (osection
== NULL
)
4051 err
= _("failed to create output section");
4056 elf_section_type (osection
) = SHT_NOBITS
;
4058 size
= bfd_section_size (isection
);
4059 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4061 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4062 else if (extract_symbol
)
4064 if (!bfd_set_section_size (osection
, size
))
4066 err
= _("failed to set size");
4070 vma
= bfd_section_vma (isection
);
4071 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4072 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4075 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4081 vma
+= change_section_address
;
4083 if (!bfd_set_section_vma (osection
, vma
))
4085 err
= _("failed to set vma");
4089 lma
= isection
->lma
;
4090 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4091 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4094 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4100 lma
+= change_section_address
;
4102 osection
->lma
= lma
;
4104 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4105 SECTION_CONTEXT_SET_ALIGNMENT
);
4107 alignment
= p
->alignment
;
4109 alignment
= bfd_section_alignment (isection
);
4111 /* FIXME: This is probably not enough. If we change the LMA we
4112 may have to recompute the header for the file as well. */
4113 if (!bfd_set_section_alignment (osection
, alignment
))
4115 err
= _("failed to set alignment");
4119 /* Copy merge entity size. */
4120 osection
->entsize
= isection
->entsize
;
4122 /* Copy compress status. */
4123 osection
->compress_status
= isection
->compress_status
;
4125 /* This used to be mangle_section; we do here to avoid using
4126 bfd_get_section_by_name since some formats allow multiple
4127 sections with the same name. */
4128 isection
->output_section
= osection
;
4129 isection
->output_offset
= 0;
4131 if ((isection
->flags
& SEC_GROUP
) != 0)
4133 asymbol
*gsym
= group_signature (isection
);
4137 gsym
->flags
|= BSF_KEEP
;
4138 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4139 elf_group_id (isection
) = gsym
;
4143 /* Allow the BFD backend to copy any private data it understands
4144 from the input section to the output section. */
4145 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4147 err
= _("failed to copy private data");
4151 /* All went well. */
4156 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4159 /* Return TRUE if input section ISECTION should be skipped. */
4162 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4168 /* If we have already failed earlier on,
4169 do not keep on generating complaints now. */
4176 if (is_strip_section (ibfd
, isection
))
4179 if (is_update_section (ibfd
, isection
))
4182 /* When merging a note section we skip the copying of the contents,
4183 but not the copying of the relocs associated with the contents. */
4184 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4187 flags
= bfd_section_flags (isection
);
4188 if ((flags
& SEC_GROUP
) != 0)
4191 osection
= isection
->output_section
;
4192 size
= bfd_section_size (isection
);
4194 if (size
== 0 || osection
== 0)
4200 /* Add section SECTION_PATTERN to the list of sections that will have their
4201 relocations removed. */
4204 handle_remove_relocations_option (const char *section_pattern
)
4206 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4209 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4210 otherwise return FALSE. If the user has requested that relocations be
4211 removed from a section that does not have relocations then this
4212 function will still return TRUE. */
4215 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4217 return (find_section_list (bfd_section_name (isection
), FALSE
,
4218 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4221 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4222 A special case is detected here, if the user asks to remove a relocation
4223 section (one starting with ".rela" or ".rel") then this removal must
4224 be done using a different technique in a relocatable object. */
4227 handle_remove_section_option (const char *section_pattern
)
4229 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4230 if (strncmp (section_pattern
, ".rel", 4) == 0)
4232 section_pattern
+= 4;
4233 if (*section_pattern
== 'a')
4235 if (*section_pattern
)
4236 handle_remove_relocations_option (section_pattern
);
4238 sections_removed
= TRUE
;
4241 /* Copy relocations in input section ISECTION of IBFD to an output
4242 section with the same name in OBFDARG. If stripping then don't
4243 copy any relocation info. */
4246 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4248 bfd
*obfd
= (bfd
*) obfdarg
;
4254 if (skip_section (ibfd
, isection
, FALSE
))
4257 osection
= isection
->output_section
;
4259 /* Core files and DWO files do not need to be relocated. */
4260 if (bfd_get_format (obfd
) == bfd_core
4261 || strip_symbols
== STRIP_NONDWO
4262 || discard_relocations (ibfd
, isection
))
4266 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4270 /* Do not complain if the target does not support relocations. */
4271 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4276 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4284 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4285 osection
->flags
&= ~SEC_RELOC
;
4289 if (isection
->orelocation
!= NULL
)
4291 /* Some other function has already set up the output relocs
4292 for us, so scan those instead of the default relocs. */
4293 relcount
= isection
->reloc_count
;
4294 relpp
= isection
->orelocation
;
4298 relpp
= (arelent
**) xmalloc (relsize
);
4299 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4303 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4304 _("relocation count is negative"));
4310 if (strip_symbols
== STRIP_ALL
)
4312 /* Remove relocations which are not in
4313 keep_strip_specific_list. */
4314 arelent
**temp_relpp
;
4315 long temp_relcount
= 0;
4318 temp_relpp
= (arelent
**) xmalloc (relsize
);
4319 for (i
= 0; i
< relcount
; i
++)
4321 /* PR 17512: file: 9e907e0c. */
4322 if (relpp
[i
]->sym_ptr_ptr
4324 && * relpp
[i
]->sym_ptr_ptr
)
4325 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4326 keep_specific_htab
))
4327 temp_relpp
[temp_relcount
++] = relpp
[i
];
4329 relcount
= temp_relcount
;
4330 if (relpp
!= isection
->orelocation
)
4335 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4338 osection
->flags
&= ~SEC_RELOC
;
4339 if (relpp
!= isection
->orelocation
)
4345 /* Copy the data of input section ISECTION of IBFD
4346 to an output section with the same name in OBFD. */
4349 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4351 bfd
*obfd
= (bfd
*) obfdarg
;
4352 struct section_list
*p
;
4356 if (skip_section (ibfd
, isection
, TRUE
))
4359 osection
= isection
->output_section
;
4360 /* The output SHF_COMPRESSED section size is different from input if
4361 ELF classes of input and output aren't the same. We can't use
4362 the output section size since --interleave will shrink the output
4363 section. Size will be updated if the section is converted. */
4364 size
= bfd_section_size (isection
);
4366 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4367 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4369 bfd_byte
*memhunk
= NULL
;
4371 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4372 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4376 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4383 /* We don't handle leftover bytes (too many possible behaviors,
4384 and we don't know what the user wants). The section length
4385 must be a multiple of the number of bytes to swap. */
4386 if ((size
% reverse_bytes
) == 0)
4391 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4392 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4394 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4397 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4398 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4402 /* User must pad the section up in order to do this. */
4403 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4404 bfd_section_name (isection
), reverse_bytes
);
4409 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4410 char *from
= (char *) memhunk
+ copy_byte
;
4411 char *to
= (char *) memhunk
;
4412 char *end
= (char *) memhunk
+ size
;
4415 /* If the section address is not exactly divisible by the interleave,
4416 then we must bias the from address. If the copy_byte is less than
4417 the bias, then we must skip forward one interleave, and increment
4419 int extra
= isection
->lma
% interleave
;
4421 if (copy_byte
< extra
)
4424 for (; from
< end
; from
+= interleave
)
4425 for (i
= 0; i
< copy_width
; i
++)
4427 if (&from
[i
] >= end
)
4432 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4433 osection
->lma
/= interleave
;
4434 if (copy_byte
< extra
)
4438 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4441 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4447 else if ((p
= find_section_list (bfd_section_name (isection
),
4448 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4449 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4451 void *memhunk
= xmalloc (size
);
4453 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4454 flag--they can just remove the section entirely and add it
4455 back again. However, we do permit them to turn on the
4456 SEC_HAS_CONTENTS flag, and take it to mean that the section
4457 contents should be zeroed out. */
4459 memset (memhunk
, 0, size
);
4460 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4463 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4471 /* Get all the sections. This is used when --gap-fill or --pad-to is
4475 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4477 asection
***secppp
= (asection
***) secppparg
;
4479 **secppp
= osection
;
4483 /* Sort sections by LMA. This is called via qsort, and is used when
4484 --gap-fill or --pad-to is used. We force non loadable or empty
4485 sections to the front, where they are easier to ignore. */
4488 compare_section_lma (const void *arg1
, const void *arg2
)
4490 const asection
*sec1
= *(const asection
**) arg1
;
4491 const asection
*sec2
= *(const asection
**) arg2
;
4492 flagword flags1
, flags2
;
4494 /* Sort non loadable sections to the front. */
4495 flags1
= sec1
->flags
;
4496 flags2
= sec2
->flags
;
4497 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4498 || (flags1
& SEC_LOAD
) == 0)
4500 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4501 && (flags2
& SEC_LOAD
) != 0)
4506 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4507 || (flags2
& SEC_LOAD
) == 0)
4511 /* Sort sections by LMA. */
4512 if (sec1
->lma
> sec2
->lma
)
4514 if (sec1
->lma
< sec2
->lma
)
4517 /* Sort sections with the same LMA by size. */
4518 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4520 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4523 if (sec1
->id
> sec2
->id
)
4525 if (sec1
->id
< sec2
->id
)
4530 /* Mark all the symbols which will be used in output relocations with
4531 the BSF_KEEP flag so that those symbols will not be stripped.
4533 Ignore relocations which will not appear in the output file. */
4536 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4538 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4543 /* Ignore an input section with no corresponding output section. */
4544 if (isection
->output_section
== NULL
)
4547 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4550 /* Do not complain if the target does not support relocations. */
4551 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4553 bfd_fatal (bfd_get_filename (ibfd
));
4559 relpp
= (arelent
**) xmalloc (relsize
);
4560 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4562 bfd_fatal (bfd_get_filename (ibfd
));
4564 /* Examine each symbol used in a relocation. If it's not one of the
4565 special bfd section symbols, then mark it with BSF_KEEP. */
4566 for (i
= 0; i
< relcount
; i
++)
4568 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4569 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4570 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4571 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4572 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4573 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4574 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4581 /* Write out debugging information. */
4584 write_debugging_info (bfd
*obfd
, void *dhandle
,
4585 long *symcountp ATTRIBUTE_UNUSED
,
4586 asymbol
***symppp ATTRIBUTE_UNUSED
)
4588 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4589 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4591 bfd_byte
*syms
, *strings
= NULL
;
4592 bfd_size_type symsize
, stringsize
;
4593 asection
*stabsec
, *stabstrsec
;
4596 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4601 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4602 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4603 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4605 || stabstrsec
== NULL
4606 || !bfd_set_section_size (stabsec
, symsize
)
4607 || !bfd_set_section_size (stabstrsec
, stringsize
)
4608 || !bfd_set_section_alignment (stabsec
, 2)
4609 || !bfd_set_section_alignment (stabstrsec
, 0))
4611 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4612 _("can't create debugging section"));
4617 /* We can get away with setting the section contents now because
4618 the next thing the caller is going to do is copy over the
4619 real sections. We may someday have to split the contents
4620 setting out of this function. */
4621 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4622 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4625 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4626 _("can't set debugging section contents"));
4634 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4635 _("don't know how to write debugging information for %s"),
4636 bfd_get_target (obfd
));
4640 /* If neither -D nor -U was specified explicitly,
4641 then use the configured default. */
4643 default_deterministic (void)
4645 if (deterministic
< 0)
4646 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4650 strip_main (int argc
, char *argv
[])
4652 char *input_target
= NULL
;
4653 char *output_target
= NULL
;
4654 bfd_boolean show_version
= FALSE
;
4655 bfd_boolean formats_info
= FALSE
;
4658 char *output_file
= NULL
;
4659 bfd_boolean merge_notes_set
= FALSE
;
4661 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4662 strip_options
, (int *) 0)) != EOF
)
4667 input_target
= optarg
;
4670 output_target
= optarg
;
4673 input_target
= output_target
= optarg
;
4676 handle_remove_section_option (optarg
);
4678 case OPTION_KEEP_SECTION
:
4679 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4681 case OPTION_REMOVE_RELOCS
:
4682 handle_remove_relocations_option (optarg
);
4685 strip_symbols
= STRIP_ALL
;
4689 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4690 strip_symbols
= STRIP_DEBUG
;
4692 case OPTION_STRIP_DWO
:
4693 strip_symbols
= STRIP_DWO
;
4695 case OPTION_STRIP_UNNEEDED
:
4696 strip_symbols
= STRIP_UNNEEDED
;
4699 add_specific_symbol (optarg
, keep_specific_htab
);
4703 merge_notes_set
= TRUE
;
4705 case OPTION_NO_MERGE_NOTES
:
4706 merge_notes
= FALSE
;
4707 merge_notes_set
= TRUE
;
4710 add_specific_symbol (optarg
, strip_specific_htab
);
4713 output_file
= optarg
;
4716 preserve_dates
= TRUE
;
4719 deterministic
= TRUE
;
4722 deterministic
= FALSE
;
4725 discard_locals
= LOCALS_ALL
;
4728 discard_locals
= LOCALS_START_L
;
4734 show_version
= TRUE
;
4736 case OPTION_FORMATS_INFO
:
4737 formats_info
= TRUE
;
4739 case OPTION_ONLY_KEEP_DEBUG
:
4740 strip_symbols
= STRIP_NONDEBUG
;
4742 case OPTION_KEEP_FILE_SYMBOLS
:
4743 keep_file_symbols
= 1;
4746 /* We've been given a long option. */
4753 strip_usage (stdout
, 0);
4755 strip_usage (stderr
, 1);
4759 /* If the user has not expressly chosen to merge/not-merge ELF notes
4760 then enable the merging unless we are stripping debug or dwo info. */
4761 if (! merge_notes_set
4762 && (strip_symbols
== STRIP_UNDEF
4763 || strip_symbols
== STRIP_ALL
4764 || strip_symbols
== STRIP_UNNEEDED
4765 || strip_symbols
== STRIP_NONDEBUG
4766 || strip_symbols
== STRIP_NONDWO
))
4776 print_version ("strip");
4778 default_deterministic ();
4780 /* Default is to strip all symbols. */
4781 if (strip_symbols
== STRIP_UNDEF
4782 && discard_locals
== LOCALS_UNDEF
4783 && htab_elements (strip_specific_htab
) == 0)
4784 strip_symbols
= STRIP_ALL
;
4786 if (output_target
== NULL
)
4787 output_target
= input_target
;
4791 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4792 strip_usage (stderr
, 1);
4794 for (; i
< argc
; i
++)
4796 int hold_status
= status
;
4797 struct stat statbuf
;
4800 if (get_file_size (argv
[i
]) < 1)
4807 /* No need to check the return value of stat().
4808 It has already been checked in get_file_size(). */
4809 stat (argv
[i
], &statbuf
);
4811 if (output_file
== NULL
4812 || filename_cmp (argv
[i
], output_file
) == 0)
4813 tmpname
= make_tempname (argv
[i
]);
4815 tmpname
= output_file
;
4817 if (tmpname
== NULL
)
4819 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4820 _("could not create temporary file to hold stripped copy"));
4826 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4830 set_times (tmpname
, &statbuf
);
4831 if (output_file
!= tmpname
)
4832 status
= (smart_rename (tmpname
,
4833 output_file
? output_file
: argv
[i
],
4834 preserve_dates
) != 0);
4836 status
= hold_status
;
4839 unlink_if_ordinary (tmpname
);
4840 if (output_file
!= tmpname
)
4847 /* Set up PE subsystem. */
4850 set_pe_subsystem (const char *s
)
4852 const char *version
, *subsystem
;
4862 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4863 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4864 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4865 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4866 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4867 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4868 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4869 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4870 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4871 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4877 /* Check for the presence of a version number. */
4878 version
= strchr (s
, ':');
4879 if (version
== NULL
)
4883 int len
= version
- s
;
4887 version
= copy
+ 1 + len
;
4888 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4890 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4892 non_fatal (_("%s: bad version in PE subsystem"), s
);
4895 /* Check for numeric subsystem. */
4896 value
= (short) strtol (subsystem
, ©
, 0);
4899 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4900 if (v
[i
].value
== value
)
4902 pe_subsystem
= value
;
4903 set_def
= v
[i
].set_def
;
4909 /* Search for subsystem by name. */
4910 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4911 if (strcmp (subsystem
, v
[i
].name
) == 0)
4913 pe_subsystem
= v
[i
].value
;
4914 set_def
= v
[i
].set_def
;
4922 fatal (_("unknown PE subsystem: %s"), s
);
4927 if (pe_file_alignment
== (bfd_vma
) -1)
4928 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4929 if (pe_section_alignment
== (bfd_vma
) -1)
4930 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4934 free ((char *) subsystem
);
4937 /* Convert EFI target to PEI target. */
4940 convert_efi_target (char *efi
)
4946 if (strcmp (efi
+ 4, "ia32") == 0)
4948 /* Change ia32 to i386. */
4953 else if (strcmp (efi
+ 4, "x86_64") == 0)
4955 /* Change x86_64 to x86-64. */
4960 /* Allocate and return a pointer to a struct section_add, initializing the
4961 structure using ARG, a string in the format "sectionname=filename".
4962 The returned structure will have its next pointer set to NEXT. The
4963 OPTION field is the name of the command line option currently being
4964 parsed, and is only used if an error needs to be reported. */
4966 static struct section_add
*
4967 init_section_add (const char *arg
,
4968 struct section_add
*next
,
4971 struct section_add
*pa
;
4974 s
= strchr (arg
, '=');
4976 fatal (_("bad format for %s"), option
);
4978 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4979 pa
->name
= xstrndup (arg
, s
- arg
);
4980 pa
->filename
= s
+ 1;
4982 pa
->contents
= NULL
;
4988 /* Load the file specified in PA, allocating memory to hold the file
4989 contents, and store a pointer to the allocated memory in the contents
4990 field of PA. The size field of PA is also updated. All errors call
4994 section_add_load_file (struct section_add
*pa
)
4999 /* We don't use get_file_size so that we can do
5000 --add-section .note.GNU_stack=/dev/null
5001 get_file_size doesn't work on /dev/null. */
5003 f
= fopen (pa
->filename
, FOPEN_RB
);
5005 fatal (_("cannot open: %s: %s"),
5006 pa
->filename
, strerror (errno
));
5010 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5018 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5021 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5023 fatal (_("%s: fread failed"), pa
->filename
);
5034 copy_main (int argc
, char *argv
[])
5036 char *input_filename
= NULL
;
5037 char *output_filename
= NULL
;
5039 char *input_target
= NULL
;
5040 char *output_target
= NULL
;
5041 bfd_boolean show_version
= FALSE
;
5042 bfd_boolean change_warn
= TRUE
;
5043 bfd_boolean formats_info
= FALSE
;
5044 bfd_boolean use_globalize
= FALSE
;
5045 bfd_boolean use_keep_global
= FALSE
;
5047 struct stat statbuf
;
5048 const bfd_arch_info_type
*input_arch
= NULL
;
5050 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5051 copy_options
, (int *) 0)) != EOF
)
5056 copy_byte
= atoi (optarg
);
5058 fatal (_("byte number must be non-negative"));
5062 input_arch
= bfd_scan_arch (optarg
);
5063 if (input_arch
== NULL
)
5064 fatal (_("architecture %s unknown"), optarg
);
5070 interleave
= atoi (optarg
);
5072 fatal (_("interleave must be positive"));
5078 case OPTION_INTERLEAVE_WIDTH
:
5079 copy_width
= atoi (optarg
);
5081 fatal(_("interleave width must be positive"));
5085 case 's': /* "source" - 'I' is preferred */
5086 input_target
= optarg
;
5090 case 'd': /* "destination" - 'O' is preferred */
5091 output_target
= optarg
;
5095 input_target
= output_target
= optarg
;
5099 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5100 sections_copied
= TRUE
;
5104 handle_remove_section_option (optarg
);
5107 case OPTION_KEEP_SECTION
:
5108 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5111 case OPTION_REMOVE_RELOCS
:
5112 handle_remove_relocations_option (optarg
);
5116 strip_symbols
= STRIP_ALL
;
5120 strip_symbols
= STRIP_DEBUG
;
5123 case OPTION_STRIP_DWO
:
5124 strip_symbols
= STRIP_DWO
;
5127 case OPTION_STRIP_UNNEEDED
:
5128 strip_symbols
= STRIP_UNNEEDED
;
5131 case OPTION_ONLY_KEEP_DEBUG
:
5132 strip_symbols
= STRIP_NONDEBUG
;
5135 case OPTION_KEEP_FILE_SYMBOLS
:
5136 keep_file_symbols
= 1;
5139 case OPTION_ADD_GNU_DEBUGLINK
:
5140 long_section_names
= ENABLE
;
5141 gnu_debuglink_filename
= optarg
;
5145 add_specific_symbol (optarg
, keep_specific_htab
);
5151 case OPTION_NO_MERGE_NOTES
:
5152 merge_notes
= FALSE
;
5156 add_specific_symbol (optarg
, strip_specific_htab
);
5159 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5160 add_specific_symbol (optarg
, strip_unneeded_htab
);
5164 add_specific_symbol (optarg
, localize_specific_htab
);
5167 case OPTION_GLOBALIZE_SYMBOL
:
5168 use_globalize
= TRUE
;
5169 add_specific_symbol (optarg
, globalize_specific_htab
);
5173 use_keep_global
= TRUE
;
5174 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5178 add_specific_symbol (optarg
, weaken_specific_htab
);
5182 preserve_dates
= TRUE
;
5186 deterministic
= TRUE
;
5190 deterministic
= FALSE
;
5198 discard_locals
= LOCALS_ALL
;
5202 discard_locals
= LOCALS_START_L
;
5210 show_version
= TRUE
;
5213 case OPTION_FORMATS_INFO
:
5214 formats_info
= TRUE
;
5221 case OPTION_ADD_SECTION
:
5222 add_sections
= init_section_add (optarg
, add_sections
,
5224 section_add_load_file (add_sections
);
5227 case OPTION_UPDATE_SECTION
:
5228 update_sections
= init_section_add (optarg
, update_sections
,
5229 "--update-section");
5230 section_add_load_file (update_sections
);
5233 case OPTION_DUMP_SECTION
:
5234 dump_sections
= init_section_add (optarg
, dump_sections
,
5238 case OPTION_ADD_SYMBOL
:
5241 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5243 newsym
->next
= NULL
;
5244 s
= strchr (optarg
, '=');
5246 fatal (_("bad format for %s"), "--add-symbol");
5247 t
= strchr (s
+ 1, ':');
5249 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5252 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5253 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5257 newsym
->section
= NULL
;
5258 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5262 t
= strchr (t
+ 1, ',');
5263 newsym
->othersym
= NULL
;
5265 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5267 newsym
->flags
= BSF_GLOBAL
;
5269 /* Keep 'othersym' symbols at the front of the list. */
5270 if (newsym
->othersym
)
5272 newsym
->next
= add_sym_list
;
5274 add_sym_tail
= &newsym
->next
;
5275 add_sym_list
= newsym
;
5279 *add_sym_tail
= newsym
;
5280 add_sym_tail
= &newsym
->next
;
5286 case OPTION_CHANGE_START
:
5287 change_start
= parse_vma (optarg
, "--change-start");
5290 case OPTION_CHANGE_SECTION_ADDRESS
:
5291 case OPTION_CHANGE_SECTION_LMA
:
5292 case OPTION_CHANGE_SECTION_VMA
:
5294 struct section_list
* p
;
5295 unsigned int context
= 0;
5299 char *option
= NULL
;
5304 case OPTION_CHANGE_SECTION_ADDRESS
:
5305 option
= "--change-section-address";
5306 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5308 case OPTION_CHANGE_SECTION_LMA
:
5309 option
= "--change-section-lma";
5310 context
= SECTION_CONTEXT_ALTER_LMA
;
5312 case OPTION_CHANGE_SECTION_VMA
:
5313 option
= "--change-section-vma";
5314 context
= SECTION_CONTEXT_ALTER_VMA
;
5318 s
= strchr (optarg
, '=');
5321 s
= strchr (optarg
, '+');
5324 s
= strchr (optarg
, '-');
5326 fatal (_("bad format for %s"), option
);
5331 /* Correct the context. */
5334 case OPTION_CHANGE_SECTION_ADDRESS
:
5335 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5337 case OPTION_CHANGE_SECTION_LMA
:
5338 context
= SECTION_CONTEXT_SET_LMA
;
5340 case OPTION_CHANGE_SECTION_VMA
:
5341 context
= SECTION_CONTEXT_SET_VMA
;
5347 name
= (char *) xmalloc (len
+ 1);
5348 strncpy (name
, optarg
, len
);
5351 p
= find_section_list (name
, TRUE
, context
);
5353 val
= parse_vma (s
+ 1, option
);
5359 case OPTION_CHANGE_SECTION_ADDRESS
:
5363 case OPTION_CHANGE_SECTION_LMA
:
5367 case OPTION_CHANGE_SECTION_VMA
:
5374 case OPTION_CHANGE_ADDRESSES
:
5375 change_section_address
= parse_vma (optarg
, "--change-addresses");
5376 change_start
= change_section_address
;
5379 case OPTION_CHANGE_WARNINGS
:
5383 case OPTION_CHANGE_LEADING_CHAR
:
5384 change_leading_char
= TRUE
;
5387 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5390 if (strcasecmp (optarg
, "none") == 0)
5391 do_debug_sections
= decompress
;
5392 else if (strcasecmp (optarg
, "zlib") == 0)
5393 do_debug_sections
= compress_zlib
;
5394 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5395 do_debug_sections
= compress_gnu_zlib
;
5396 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5397 do_debug_sections
= compress_gabi_zlib
;
5399 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5403 do_debug_sections
= compress
;
5406 case OPTION_DEBUGGING
:
5407 convert_debugging
= TRUE
;
5410 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5411 do_debug_sections
= decompress
;
5414 case OPTION_ELF_STT_COMMON
:
5415 if (strcasecmp (optarg
, "yes") == 0)
5416 do_elf_stt_common
= elf_stt_common
;
5417 else if (strcasecmp (optarg
, "no") == 0)
5418 do_elf_stt_common
= no_elf_stt_common
;
5420 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5424 case OPTION_GAP_FILL
:
5426 bfd_vma gap_fill_vma
;
5428 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5429 gap_fill
= (bfd_byte
) gap_fill_vma
;
5430 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5434 sprintf_vma (buff
, gap_fill_vma
);
5436 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5439 gap_fill_set
= TRUE
;
5443 case OPTION_NO_CHANGE_WARNINGS
:
5444 change_warn
= FALSE
;
5448 pad_to
= parse_vma (optarg
, "--pad-to");
5452 case OPTION_REMOVE_LEADING_CHAR
:
5453 remove_leading_char
= TRUE
;
5456 case OPTION_REDEFINE_SYM
:
5458 /* Insert this redefinition onto redefine_specific_htab. */
5462 const char *nextarg
;
5463 char *source
, *target
;
5465 s
= strchr (optarg
, '=');
5467 fatal (_("bad format for %s"), "--redefine-sym");
5470 source
= (char *) xmalloc (len
+ 1);
5471 strncpy (source
, optarg
, len
);
5475 len
= strlen (nextarg
);
5476 target
= (char *) xmalloc (len
+ 1);
5477 strcpy (target
, nextarg
);
5479 add_redefine_and_check ("--redefine-sym", source
, target
);
5486 case OPTION_REDEFINE_SYMS
:
5487 add_redefine_syms_file (optarg
);
5490 case OPTION_SET_SECTION_FLAGS
:
5492 struct section_list
*p
;
5497 s
= strchr (optarg
, '=');
5499 fatal (_("bad format for %s"), "--set-section-flags");
5502 name
= (char *) xmalloc (len
+ 1);
5503 strncpy (name
, optarg
, len
);
5506 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5508 p
->flags
= parse_flags (s
+ 1);
5512 case OPTION_SET_SECTION_ALIGNMENT
:
5514 struct section_list
*p
;
5520 s
= strchr (optarg
, '=');
5522 fatal (_("bad format for --set-section-alignment: argument needed"));
5524 align
= atoi (s
+ 1);
5526 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5528 /* Convert integer alignment into a power-of-two alignment. */
5530 while ((align
& 1) == 0)
5537 /* Number has more than on 1, i.e. wasn't a power of 2. */
5538 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5540 /* Add the alignment setting to the section list. */
5542 name
= (char *) xmalloc (len
+ 1);
5543 strncpy (name
, optarg
, len
);
5546 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5548 p
->alignment
= palign
;
5552 case OPTION_RENAME_SECTION
:
5555 const char *eq
, *fl
;
5560 eq
= strchr (optarg
, '=');
5562 fatal (_("bad format for %s"), "--rename-section");
5566 fatal (_("bad format for %s"), "--rename-section");
5568 old_name
= (char *) xmalloc (len
+ 1);
5569 strncpy (old_name
, optarg
, len
);
5573 fl
= strchr (eq
, ',');
5576 flags
= parse_flags (fl
+ 1);
5586 fatal (_("bad format for %s"), "--rename-section");
5588 new_name
= (char *) xmalloc (len
+ 1);
5589 strncpy (new_name
, eq
, len
);
5592 add_section_rename (old_name
, new_name
, flags
);
5596 case OPTION_SET_START
:
5597 set_start
= parse_vma (optarg
, "--set-start");
5598 set_start_set
= TRUE
;
5601 case OPTION_SREC_LEN
:
5602 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5605 case OPTION_SREC_FORCES3
:
5606 _bfd_srec_forceS3
= TRUE
;
5609 case OPTION_STRIP_SYMBOLS
:
5610 add_specific_symbols (optarg
, strip_specific_htab
,
5611 &strip_specific_buffer
);
5614 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5615 add_specific_symbols (optarg
, strip_unneeded_htab
,
5616 &strip_unneeded_buffer
);
5619 case OPTION_KEEP_SYMBOLS
:
5620 add_specific_symbols (optarg
, keep_specific_htab
,
5621 &keep_specific_buffer
);
5624 case OPTION_LOCALIZE_HIDDEN
:
5625 localize_hidden
= TRUE
;
5628 case OPTION_LOCALIZE_SYMBOLS
:
5629 add_specific_symbols (optarg
, localize_specific_htab
,
5630 &localize_specific_buffer
);
5633 case OPTION_LONG_SECTION_NAMES
:
5634 if (!strcmp ("enable", optarg
))
5635 long_section_names
= ENABLE
;
5636 else if (!strcmp ("disable", optarg
))
5637 long_section_names
= DISABLE
;
5638 else if (!strcmp ("keep", optarg
))
5639 long_section_names
= KEEP
;
5641 fatal (_("unknown long section names option '%s'"), optarg
);
5644 case OPTION_GLOBALIZE_SYMBOLS
:
5645 use_globalize
= TRUE
;
5646 add_specific_symbols (optarg
, globalize_specific_htab
,
5647 &globalize_specific_buffer
);
5650 case OPTION_KEEPGLOBAL_SYMBOLS
:
5651 use_keep_global
= TRUE
;
5652 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5653 &keepglobal_specific_buffer
);
5656 case OPTION_WEAKEN_SYMBOLS
:
5657 add_specific_symbols (optarg
, weaken_specific_htab
,
5658 &weaken_specific_buffer
);
5661 case OPTION_ALT_MACH_CODE
:
5662 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5663 if (use_alt_mach_code
== 0)
5664 fatal (_("unable to parse alternative machine code"));
5667 case OPTION_PREFIX_SYMBOLS
:
5668 prefix_symbols_string
= optarg
;
5671 case OPTION_PREFIX_SECTIONS
:
5672 prefix_sections_string
= optarg
;
5675 case OPTION_PREFIX_ALLOC_SECTIONS
:
5676 prefix_alloc_sections_string
= optarg
;
5679 case OPTION_READONLY_TEXT
:
5680 bfd_flags_to_set
|= WP_TEXT
;
5681 bfd_flags_to_clear
&= ~WP_TEXT
;
5684 case OPTION_WRITABLE_TEXT
:
5685 bfd_flags_to_clear
|= WP_TEXT
;
5686 bfd_flags_to_set
&= ~WP_TEXT
;
5690 bfd_flags_to_set
|= D_PAGED
;
5691 bfd_flags_to_clear
&= ~D_PAGED
;
5695 bfd_flags_to_clear
|= D_PAGED
;
5696 bfd_flags_to_set
&= ~D_PAGED
;
5699 case OPTION_EXTRACT_DWO
:
5700 strip_symbols
= STRIP_NONDWO
;
5703 case OPTION_EXTRACT_SYMBOL
:
5704 extract_symbol
= TRUE
;
5707 case OPTION_REVERSE_BYTES
:
5709 int prev
= reverse_bytes
;
5711 reverse_bytes
= atoi (optarg
);
5712 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5713 fatal (_("number of bytes to reverse must be positive and even"));
5715 if (prev
&& prev
!= reverse_bytes
)
5716 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5721 case OPTION_FILE_ALIGNMENT
:
5722 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5728 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5730 || (*end
!= '.' && *end
!= '\0'))
5731 non_fatal (_("%s: invalid reserve value for --heap"),
5733 else if (*end
!= '\0')
5735 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5737 non_fatal (_("%s: invalid commit value for --heap"),
5743 case OPTION_IMAGE_BASE
:
5744 pe_image_base
= parse_vma (optarg
, "--image-base");
5747 case OPTION_PE_SECTION_ALIGNMENT
:
5748 pe_section_alignment
= parse_vma (optarg
,
5749 "--section-alignment");
5752 case OPTION_SUBSYSTEM
:
5753 set_pe_subsystem (optarg
);
5759 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5761 || (*end
!= '.' && *end
!= '\0'))
5762 non_fatal (_("%s: invalid reserve value for --stack"),
5764 else if (*end
!= '\0')
5766 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5768 non_fatal (_("%s: invalid commit value for --stack"),
5774 case OPTION_VERILOG_DATA_WIDTH
:
5775 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5776 if (VerilogDataWidth
< 1)
5777 fatal (_("verilog data width must be at least 1 byte"));
5781 /* We've been given a long option. */
5786 copy_usage (stdout
, 0);
5789 copy_usage (stderr
, 1);
5793 if (use_globalize
&& use_keep_global
)
5794 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5803 print_version ("objcopy");
5805 if (interleave
&& copy_byte
== -1)
5806 fatal (_("interleave start byte must be set with --byte"));
5808 if (copy_byte
>= interleave
)
5809 fatal (_("byte number must be less than interleave"));
5811 if (copy_width
> interleave
- copy_byte
)
5812 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5814 if (optind
== argc
|| optind
+ 2 < argc
)
5815 copy_usage (stderr
, 1);
5817 input_filename
= argv
[optind
];
5818 if (optind
+ 1 < argc
)
5819 output_filename
= argv
[optind
+ 1];
5821 default_deterministic ();
5823 /* Default is to strip no symbols. */
5824 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5825 strip_symbols
= STRIP_NONE
;
5827 if (output_target
== NULL
)
5828 output_target
= input_target
;
5830 /* Convert input EFI target to PEI target. */
5831 if (input_target
!= NULL
5832 && strncmp (input_target
, "efi-", 4) == 0)
5836 efi
= xstrdup (output_target
+ 4);
5837 if (strncmp (efi
, "bsdrv-", 6) == 0
5838 || strncmp (efi
, "rtdrv-", 6) == 0)
5840 else if (strncmp (efi
, "app-", 4) != 0)
5841 fatal (_("unknown input EFI target: %s"), input_target
);
5844 convert_efi_target (efi
);
5847 /* Convert output EFI target to PEI target. */
5848 if (output_target
!= NULL
5849 && strncmp (output_target
, "efi-", 4) == 0)
5853 efi
= xstrdup (output_target
+ 4);
5854 if (strncmp (efi
, "app-", 4) == 0)
5856 if (pe_subsystem
== -1)
5857 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5859 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5861 if (pe_subsystem
== -1)
5862 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5865 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5867 if (pe_subsystem
== -1)
5868 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5872 fatal (_("unknown output EFI target: %s"), output_target
);
5874 if (pe_file_alignment
== (bfd_vma
) -1)
5875 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5876 if (pe_section_alignment
== (bfd_vma
) -1)
5877 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5879 output_target
= efi
;
5880 convert_efi_target (efi
);
5884 if (stat (input_filename
, & statbuf
) < 0)
5885 fatal (_("warning: could not locate '%s'. System error message: %s"),
5886 input_filename
, strerror (errno
));
5888 /* If there is no destination file, or the source and destination files
5889 are the same, then create a temp and rename the result into the input. */
5890 if (output_filename
== NULL
5891 || filename_cmp (input_filename
, output_filename
) == 0)
5892 tmpname
= make_tempname (input_filename
);
5894 tmpname
= output_filename
;
5896 if (tmpname
== NULL
)
5897 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5898 input_filename
, strerror (errno
));
5900 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5904 set_times (tmpname
, &statbuf
);
5905 if (tmpname
!= output_filename
)
5906 status
= (smart_rename (tmpname
, input_filename
,
5907 preserve_dates
) != 0);
5910 unlink_if_ordinary (tmpname
);
5912 if (tmpname
!= output_filename
)
5917 struct section_list
*p
;
5919 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5923 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5927 sprintf_vma (buff
, p
->vma_val
);
5929 /* xgettext:c-format */
5930 non_fatal (_("%s %s%c0x%s never used"),
5931 "--change-section-vma",
5933 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5937 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5941 sprintf_vma (buff
, p
->lma_val
);
5943 /* xgettext:c-format */
5944 non_fatal (_("%s %s%c0x%s never used"),
5945 "--change-section-lma",
5947 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5954 if (strip_specific_buffer
)
5955 free (strip_specific_buffer
);
5957 if (strip_unneeded_buffer
)
5958 free (strip_unneeded_buffer
);
5960 if (keep_specific_buffer
)
5961 free (keep_specific_buffer
);
5963 if (localize_specific_buffer
)
5964 free (globalize_specific_buffer
);
5966 if (globalize_specific_buffer
)
5967 free (globalize_specific_buffer
);
5969 if (keepglobal_specific_buffer
)
5970 free (keepglobal_specific_buffer
);
5972 if (weaken_specific_buffer
)
5973 free (weaken_specific_buffer
);
5979 main (int argc
, char *argv
[])
5981 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5982 setlocale (LC_MESSAGES
, "");
5984 #if defined (HAVE_SETLOCALE)
5985 setlocale (LC_CTYPE
, "");
5987 bindtextdomain (PACKAGE
, LOCALEDIR
);
5988 textdomain (PACKAGE
);
5990 program_name
= argv
[0];
5991 xmalloc_set_program_name (program_name
);
5993 START_PROGRESS (program_name
, 0);
5995 expandargv (&argc
, &argv
);
5997 strip_symbols
= STRIP_UNDEF
;
5998 discard_locals
= LOCALS_UNDEF
;
6000 if (bfd_init () != BFD_INIT_MAGIC
)
6001 fatal (_("fatal error: libbfd ABI mismatch"));
6002 set_default_bfd_target ();
6006 int i
= strlen (program_name
);
6007 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6008 /* Drop the .exe suffix, if any. */
6009 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6012 program_name
[i
] = '\0';
6015 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6018 create_symbol_htabs ();
6021 bfd_set_error_program_name (argv
[0]);
6024 strip_main (argc
, argv
);
6026 copy_main (argc
, argv
);
6028 END_PROGRESS (program_name
);