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
);
2565 /* Copy object file IBFD onto OBFD.
2566 Returns TRUE upon success, FALSE otherwise. */
2569 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2573 asection
**osections
= NULL
;
2575 asection
*gnu_debuglink_section
= NULL
;
2576 bfd_size_type
*gaps
= NULL
;
2577 bfd_size_type max_gap
= 0;
2580 enum bfd_architecture iarch
;
2584 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2585 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2586 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2588 /* PR 17636: Call non-fatal so that we return to our parent who
2589 may need to tidy temporary files. */
2590 non_fatal (_("Unable to change endianness of input file(s)"));
2594 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2596 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2600 if (ibfd
->sections
== NULL
)
2602 non_fatal (_("error: the input file '%s' has no sections"),
2603 bfd_get_archive_filename (ibfd
));
2607 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2609 if ((do_debug_sections
& compress
) != 0
2610 && do_debug_sections
!= compress
)
2612 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2613 bfd_get_archive_filename (ibfd
));
2617 if (do_elf_stt_common
)
2619 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2620 bfd_get_archive_filename (ibfd
));
2626 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2627 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2628 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2637 start
= bfd_get_start_address (ibfd
);
2638 start
+= change_start
;
2641 /* Neither the start address nor the flags
2642 need to be set for a core file. */
2643 if (bfd_get_format (obfd
) != bfd_core
)
2647 flags
= bfd_get_file_flags (ibfd
);
2648 flags
|= bfd_flags_to_set
;
2649 flags
&= ~bfd_flags_to_clear
;
2650 flags
&= bfd_applicable_file_flags (obfd
);
2652 if (strip_symbols
== STRIP_ALL
)
2653 flags
&= ~HAS_RELOC
;
2655 if (!bfd_set_start_address (obfd
, start
)
2656 || !bfd_set_file_flags (obfd
, flags
))
2658 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2663 /* Copy architecture of input file to output file. */
2664 iarch
= bfd_get_arch (ibfd
);
2665 imach
= bfd_get_mach (ibfd
);
2668 if (iarch
== bfd_arch_unknown
)
2670 iarch
= input_arch
->arch
;
2671 imach
= input_arch
->mach
;
2674 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2675 bfd_get_archive_filename (ibfd
));
2677 if (iarch
== bfd_arch_unknown
2678 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2679 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2681 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2685 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2686 && (ibfd
->target_defaulted
2687 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2689 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2690 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2691 bfd_get_archive_filename (ibfd
));
2693 non_fatal (_("Output file cannot represent architecture `%s'"),
2694 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2695 bfd_get_mach (ibfd
)));
2699 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2701 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2705 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2706 && bfd_pei_p (obfd
))
2708 /* Set up PE parameters. */
2709 pe_data_type
*pe
= pe_data (obfd
);
2711 /* Copy PE parameters before changing them. */
2712 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2713 && bfd_pei_p (ibfd
))
2714 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2716 if (pe_file_alignment
!= (bfd_vma
) -1)
2717 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2719 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2721 if (pe_heap_commit
!= (bfd_vma
) -1)
2722 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2724 if (pe_heap_reserve
!= (bfd_vma
) -1)
2725 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2727 if (pe_image_base
!= (bfd_vma
) -1)
2728 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2730 if (pe_section_alignment
!= (bfd_vma
) -1)
2731 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2733 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2735 if (pe_stack_commit
!= (bfd_vma
) -1)
2736 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2738 if (pe_stack_reserve
!= (bfd_vma
) -1)
2739 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2741 if (pe_subsystem
!= -1)
2742 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2744 if (pe_major_subsystem_version
!= -1)
2745 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2747 if (pe_minor_subsystem_version
!= -1)
2748 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2750 if (pe_file_alignment
> pe_section_alignment
)
2752 char file_alignment
[20], section_alignment
[20];
2754 sprintf_vma (file_alignment
, pe_file_alignment
);
2755 sprintf_vma (section_alignment
, pe_section_alignment
);
2756 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2758 file_alignment
, section_alignment
);
2765 if (osympp
!= isympp
)
2771 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2774 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2778 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2779 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2782 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2785 /* PR 17512: file: d6323821
2786 If the symbol table could not be loaded do not pretend that we have
2787 any symbols. This trips us up later on when we load the relocs. */
2791 osympp
= isympp
= NULL
;
2794 /* BFD mandates that all output sections be created and sizes set before
2795 any output is done. Thus, we traverse all sections multiple times. */
2796 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2798 if (!extract_symbol
)
2799 setup_bfd_headers (ibfd
, obfd
);
2801 if (add_sections
!= NULL
)
2803 struct section_add
*padd
;
2804 struct section_list
*pset
;
2806 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2810 pset
= find_section_list (padd
->name
, FALSE
,
2811 SECTION_CONTEXT_SET_FLAGS
);
2813 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2815 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2817 /* bfd_make_section_with_flags() does not return very helpful
2818 error codes, so check for the most likely user error first. */
2819 if (bfd_get_section_by_name (obfd
, padd
->name
))
2821 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2822 _("can't add section '%s'"), padd
->name
);
2827 /* We use LINKER_CREATED here so that the backend hooks
2828 will create any special section type information,
2829 instead of presuming we know what we're doing merely
2830 because we set the flags. */
2831 padd
->section
= bfd_make_section_with_flags
2832 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2833 if (padd
->section
== NULL
)
2835 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2836 _("can't create section `%s'"),
2842 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2844 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2848 pset
= find_section_list (padd
->name
, FALSE
,
2849 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2851 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2853 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2857 pset
= find_section_list (padd
->name
, FALSE
,
2858 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2861 padd
->section
->lma
= pset
->lma_val
;
2863 if (!bfd_set_section_alignment
2864 (padd
->section
, bfd_section_alignment (padd
->section
)))
2866 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2873 if (update_sections
!= NULL
)
2875 struct section_add
*pupdate
;
2877 for (pupdate
= update_sections
;
2879 pupdate
= pupdate
->next
)
2881 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2882 if (pupdate
->section
== NULL
)
2884 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2888 osec
= pupdate
->section
->output_section
;
2889 if (!bfd_set_section_size (osec
, pupdate
->size
))
2891 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2897 merged_note_section
* merged_note_sections
= NULL
;
2900 /* This palaver is necessary because we must set the output
2901 section size first, before its contents are ready. */
2902 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2904 if (! is_mergeable_note_section (ibfd
, osec
))
2907 /* If the section is going to be completly deleted then
2908 do not bother to merge it. */
2909 if (osec
->output_section
== NULL
)
2912 bfd_size_type size
= bfd_section_size (osec
);
2916 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2917 _("warning: note section is empty"));
2921 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2922 merged
->contents
= NULL
;
2923 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2925 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2926 _("warning: could not load note section"));
2931 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2934 /* FIXME: Once we have read the contents in, we must write
2935 them out again. So even if the mergeing has achieved
2936 nothing we still add this entry to the merge list. */
2938 if (size
!= merged
->size
2939 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2941 bfd_nonfatal_message (NULL
, obfd
, osec
,
2942 _("warning: failed to set merged notes size"));
2943 free (merged
->contents
);
2948 /* Add section to list of merged sections. */
2950 merged
->next
= merged_note_sections
;
2951 merged_note_sections
= merged
;
2955 if (dump_sections
!= NULL
)
2957 struct section_add
* pdump
;
2959 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2961 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2964 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2965 _("can't dump section '%s' - it does not exist"),
2970 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
2972 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2973 _("can't dump section - it has no contents"));
2977 bfd_size_type size
= bfd_section_size (osec
);
2980 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2981 _("can't dump section - it is empty"));
2986 f
= fopen (pdump
->filename
, FOPEN_WB
);
2989 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2990 _("could not open section dump file"));
2995 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
2997 if (fwrite (contents
, 1, size
, f
) != size
)
2999 non_fatal (_("error writing section contents to %s (error: %s)"),
3008 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3009 _("could not retrieve section contents"));
3016 if (gnu_debuglink_filename
!= NULL
)
3018 /* PR 15125: Give a helpful warning message if
3019 the debuglink section already exists, and
3020 allow the rest of the copy to complete. */
3021 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3023 non_fatal (_("%s: debuglink section already exists"),
3024 bfd_get_filename (obfd
));
3025 gnu_debuglink_filename
= NULL
;
3029 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3030 (obfd
, gnu_debuglink_filename
);
3032 if (gnu_debuglink_section
== NULL
)
3034 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3035 _("cannot create debug link section `%s'"),
3036 gnu_debuglink_filename
);
3040 /* Special processing for PE format files. We
3041 have no way to distinguish PE from COFF here. */
3042 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3044 bfd_vma debuglink_vma
;
3045 asection
* highest_section
;
3047 /* The PE spec requires that all sections be adjacent and sorted
3048 in ascending order of VMA. It also specifies that debug
3049 sections should be last. This is despite the fact that debug
3050 sections are not loaded into memory and so in theory have no
3053 This means that the debuglink section must be given a non-zero
3054 VMA which makes it contiguous with other debug sections. So
3055 walk the current section list, find the section with the
3056 highest VMA and start the debuglink section after that one. */
3057 for (osec
= obfd
->sections
, highest_section
= NULL
;
3061 && (highest_section
== NULL
3062 || osec
->vma
> highest_section
->vma
))
3063 highest_section
= osec
;
3065 if (highest_section
)
3066 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3067 + highest_section
->size
,
3068 /* FIXME: We ought to be using
3069 COFF_PAGE_SIZE here or maybe
3070 bfd_section_alignment() (if it
3071 was set) but since this is for PE
3072 and we know the required alignment
3073 it is easier just to hard code it. */
3076 /* Umm, not sure what to do in this case. */
3077 debuglink_vma
= 0x1000;
3079 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3084 c
= bfd_count_sections (obfd
);
3086 && (gap_fill_set
|| pad_to_set
))
3090 /* We must fill in gaps between the sections and/or we must pad
3091 the last section to a specified address. We do this by
3092 grabbing a list of the sections, sorting them by VMA, and
3093 increasing the section sizes as required to fill the gaps.
3094 We write out the gap contents below. */
3096 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
3098 bfd_map_over_sections (obfd
, get_sections
, &set
);
3100 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
3102 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
3103 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
3107 for (i
= 0; i
< c
- 1; i
++)
3110 bfd_size_type size
; /* Octets. */
3111 bfd_vma gap_start
, gap_stop
; /* Octets. */
3112 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3113 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3115 flags
= bfd_section_flags (osections
[i
]);
3116 if ((flags
& SEC_HAS_CONTENTS
) == 0
3117 || (flags
& SEC_LOAD
) == 0)
3120 size
= bfd_section_size (osections
[i
]);
3121 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3122 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3123 if (gap_start
< gap_stop
)
3125 if (!bfd_set_section_size (osections
[i
],
3126 size
+ (gap_stop
- gap_start
)))
3128 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3129 _("Can't fill gap after section"));
3133 gaps
[i
] = gap_stop
- gap_start
;
3134 if (max_gap
< gap_stop
- gap_start
)
3135 max_gap
= gap_stop
- gap_start
;
3142 bfd_vma lma
; /* Octets. */
3143 bfd_size_type size
; /* Octets. */
3144 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[c
- 1]);
3145 bfd_vma _pad_to
= pad_to
* opb
;
3147 lma
= bfd_section_lma (osections
[c
- 1]) * opb
;
3148 size
= bfd_section_size (osections
[c
- 1]);
3149 if (lma
+ size
< _pad_to
)
3151 if (!bfd_set_section_size (osections
[c
- 1], _pad_to
- lma
))
3153 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
3154 _("can't add padding"));
3159 gaps
[c
- 1] = _pad_to
- (lma
+ size
);
3160 if (max_gap
< _pad_to
- (lma
+ size
))
3161 max_gap
= _pad_to
- (lma
+ size
);
3167 /* Symbol filtering must happen after the output sections
3168 have been created, but before their contents are set. */
3170 if (convert_debugging
)
3171 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3173 if (strip_symbols
== STRIP_DEBUG
3174 || strip_symbols
== STRIP_ALL
3175 || strip_symbols
== STRIP_UNNEEDED
3176 || strip_symbols
== STRIP_NONDEBUG
3177 || strip_symbols
== STRIP_DWO
3178 || strip_symbols
== STRIP_NONDWO
3179 || discard_locals
!= LOCALS_UNDEF
3181 || htab_elements (strip_specific_htab
) != 0
3182 || htab_elements (keep_specific_htab
) != 0
3183 || htab_elements (localize_specific_htab
) != 0
3184 || htab_elements (globalize_specific_htab
) != 0
3185 || htab_elements (keepglobal_specific_htab
) != 0
3186 || htab_elements (weaken_specific_htab
) != 0
3187 || htab_elements (redefine_specific_htab
) != 0
3188 || prefix_symbols_string
3191 || convert_debugging
3192 || change_leading_char
3193 || remove_leading_char
3194 || section_rename_list
3198 /* Mark symbols used in output relocations so that they
3199 are kept, even if they are local labels or static symbols.
3201 Note we iterate over the input sections examining their
3202 relocations since the relocations for the output sections
3203 haven't been set yet. mark_symbols_used_in_relocations will
3204 ignore input sections which have no corresponding output
3206 if (strip_symbols
!= STRIP_ALL
)
3208 bfd_set_error (bfd_error_no_error
);
3209 bfd_map_over_sections (ibfd
,
3210 mark_symbols_used_in_relocations
,
3212 if (bfd_get_error () != bfd_error_no_error
)
3219 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3220 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3223 if (convert_debugging
&& dhandle
!= NULL
)
3227 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3230 dhandle
= NULL
; /* Paranoia... */
3239 bfd_set_symtab (obfd
, osympp
, symcount
);
3241 /* This has to happen before section positions are set. */
3242 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3244 /* This has to happen after the symbol table has been set. */
3245 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3247 if (add_sections
!= NULL
)
3249 struct section_add
*padd
;
3251 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3253 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3256 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3262 if (update_sections
!= NULL
)
3264 struct section_add
*pupdate
;
3266 for (pupdate
= update_sections
;
3268 pupdate
= pupdate
->next
)
3270 osec
= pupdate
->section
->output_section
;
3271 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3274 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3280 if (merged_note_sections
!= NULL
)
3282 merged_note_section
* merged
= NULL
;
3284 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3286 if (! is_mergeable_note_section (obfd
, osec
))
3290 merged
= merged_note_sections
;
3292 /* It is likely that output sections are in the same order
3293 as the input sections, but do not assume that this is
3295 if (strcmp (bfd_section_name (merged
->sec
),
3296 bfd_section_name (osec
)) != 0)
3298 for (merged
= merged_note_sections
;
3300 merged
= merged
->next
)
3301 if (strcmp (bfd_section_name (merged
->sec
),
3302 bfd_section_name (osec
)) == 0)
3307 bfd_nonfatal_message
3309 _("error: failed to locate merged notes"));
3314 if (merged
->contents
== NULL
)
3316 bfd_nonfatal_message
3318 _("error: failed to merge notes"));
3322 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3325 bfd_nonfatal_message
3327 _("error: failed to copy merged notes into output"));
3331 merged
= merged
->next
;
3334 /* Free the memory. */
3335 merged_note_section
* next
;
3336 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3338 next
= merged
->next
;
3339 free (merged
->contents
);
3343 else if (merge_notes
&& ! is_strip
)
3344 non_fatal (_("%s: Could not find any mergeable note sections"),
3345 bfd_get_filename (ibfd
));
3347 if (gnu_debuglink_filename
!= NULL
)
3349 if (! bfd_fill_in_gnu_debuglink_section
3350 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3352 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3353 _("cannot fill debug link section `%s'"),
3354 gnu_debuglink_filename
);
3359 if (gap_fill_set
|| pad_to_set
)
3363 /* Fill in the gaps. */
3366 buf
= (bfd_byte
*) xmalloc (max_gap
);
3367 memset (buf
, gap_fill
, max_gap
);
3369 c
= bfd_count_sections (obfd
);
3370 for (i
= 0; i
< c
; i
++)
3378 off
= bfd_section_size (osections
[i
]) - left
;
3389 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3392 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3408 /* Allow the BFD backend to copy any private data it understands
3409 from the input BFD to the output BFD. This is done last to
3410 permit the routine to look at the filtered symbol table, which is
3411 important for the ECOFF code at least. */
3412 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3414 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3415 _("error copying private BFD data"));
3419 /* Switch to the alternate machine code. We have to do this at the
3420 very end, because we only initialize the header when we create
3421 the first section. */
3422 if (use_alt_mach_code
!= 0)
3424 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3426 non_fatal (_("this target does not support %lu alternative machine codes"),
3428 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3430 non_fatal (_("treating that number as an absolute e_machine value instead"));
3431 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3434 non_fatal (_("ignoring the alternative value"));
3441 /* Read each archive element in turn from IBFD, copy the
3442 contents to temp file, and keep the temp file handle.
3443 If 'force_output_target' is TRUE then make sure that
3444 all elements in the new archive are of the type
3448 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3449 bfd_boolean force_output_target
,
3450 const bfd_arch_info_type
*input_arch
)
3454 struct name_list
*next
;
3458 bfd
**ptr
= &obfd
->archive_head
;
3461 const char *filename
;
3463 /* PR 24281: It is not clear what should happen when copying a thin archive.
3464 One part is straight forward - if the output archive is in a different
3465 directory from the input archive then any relative paths in the library
3466 should be adjusted to the new location. But if any transformation
3467 options are active (eg strip, rename, add, etc) then the implication is
3468 that these should be applied to the files pointed to by the archive.
3469 But since objcopy is not destructive, this means that new files must be
3470 created, and there is no guidance for the names of the new files. (Plus
3471 this conflicts with one of the goals of thin libraries - only taking up
3472 a minimal amount of space in the file system).
3474 So for now we fail if an attempt is made to copy such libraries. */
3475 if (ibfd
->is_thin_archive
)
3478 bfd_set_error (bfd_error_invalid_operation
);
3479 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3480 _("sorry: copying thin archives is not currently supported"));
3484 /* Make a temp directory to hold the contents. */
3485 dir
= make_tempdir (bfd_get_filename (obfd
));
3487 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3490 if (strip_symbols
== STRIP_ALL
)
3491 obfd
->has_armap
= FALSE
;
3493 obfd
->has_armap
= ibfd
->has_armap
;
3494 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3497 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3501 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3503 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3506 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3507 goto cleanup_and_exit
;
3510 while (!status
&& this_element
!= NULL
)
3516 int stat_status
= 0;
3517 bfd_boolean del
= TRUE
;
3518 bfd_boolean ok_object
;
3520 /* PR binutils/17533: Do not allow directory traversal
3521 outside of the current directory tree by archive members. */
3522 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3524 non_fatal (_("illegal pathname found in archive member: %s"),
3525 bfd_get_filename (this_element
));
3527 goto cleanup_and_exit
;
3530 /* Create an output file for this member. */
3531 output_name
= concat (dir
, "/",
3532 bfd_get_filename (this_element
), (char *) 0);
3534 /* If the file already exists, make another temp dir. */
3535 if (stat (output_name
, &buf
) >= 0)
3537 char * tmpdir
= make_tempdir (output_name
);
3542 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3545 goto cleanup_and_exit
;
3548 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3553 output_name
= concat (tmpdir
, "/",
3554 bfd_get_filename (this_element
), (char *) 0);
3559 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3561 if (stat_status
!= 0)
3562 non_fatal (_("internal stat error on %s"),
3563 bfd_get_filename (this_element
));
3566 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3567 l
->name
= output_name
;
3572 ok_object
= bfd_check_format (this_element
, bfd_object
);
3574 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3575 _("Unable to recognise the format of file"));
3577 /* PR binutils/3110: Cope with archives
3578 containing multiple target types. */
3579 if (force_output_target
|| !ok_object
)
3580 output_bfd
= bfd_openw (output_name
, output_target
);
3582 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3584 if (output_bfd
== NULL
)
3586 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3588 goto cleanup_and_exit
;
3593 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3595 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3596 /* Try again as an unknown object file. */
3598 else if (!bfd_close (output_bfd
))
3600 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3601 /* Error in new object file. Don't change archive. */
3608 del
= !copy_unknown_object (this_element
, output_bfd
);
3609 if (!bfd_close_all_done (output_bfd
))
3611 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3612 /* Error in new object file. Don't change archive. */
3619 unlink (output_name
);
3624 if (preserve_dates
&& stat_status
== 0)
3625 set_times (output_name
, &buf
);
3627 /* Open the newly output file and attach to our list. */
3628 output_bfd
= bfd_openr (output_name
, output_target
);
3630 l
->obfd
= output_bfd
;
3633 ptr
= &output_bfd
->archive_next
;
3635 last_element
= this_element
;
3637 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3639 bfd_close (last_element
);
3644 filename
= bfd_get_filename (obfd
);
3645 if (!bfd_close (obfd
))
3648 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3651 filename
= bfd_get_filename (ibfd
);
3652 if (!bfd_close (ibfd
))
3655 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3659 /* Delete all the files that we opened. */
3661 struct name_list
* next
;
3663 for (l
= list
; l
!= NULL
; l
= next
)
3665 if (l
->obfd
== NULL
)
3669 bfd_close (l
->obfd
);
3681 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3683 /* This is only relevant to Coff targets. */
3684 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3687 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3688 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3689 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3693 /* The top-level control. */
3696 copy_file (const char *input_filename
, const char *output_filename
,
3697 const char *input_target
, const char *output_target
,
3698 const bfd_arch_info_type
*input_arch
)
3701 char **obj_matching
;
3702 char **core_matching
;
3703 off_t size
= get_file_size (input_filename
);
3708 non_fatal (_("error: the input file '%s' is empty"),
3714 /* To allow us to do "strip *" without dying on the first
3715 non-object file, failures are nonfatal. */
3716 ibfd
= bfd_openr (input_filename
, input_target
);
3719 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3724 switch (do_debug_sections
)
3728 case compress_gnu_zlib
:
3729 case compress_gabi_zlib
:
3730 ibfd
->flags
|= BFD_COMPRESS
;
3731 /* Don't check if input is ELF here since this information is
3732 only available after bfd_check_format_matches is called. */
3733 if (do_debug_sections
!= compress_gnu_zlib
)
3734 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3737 ibfd
->flags
|= BFD_DECOMPRESS
;
3743 switch (do_elf_stt_common
)
3745 case elf_stt_common
:
3746 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3749 case no_elf_stt_common
:
3750 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3756 if (bfd_check_format (ibfd
, bfd_archive
))
3758 bfd_boolean force_output_target
;
3761 /* bfd_get_target does not return the correct value until
3762 bfd_check_format succeeds. */
3763 if (output_target
== NULL
)
3765 output_target
= bfd_get_target (ibfd
);
3766 force_output_target
= FALSE
;
3769 force_output_target
= TRUE
;
3771 obfd
= bfd_openw (output_filename
, output_target
);
3774 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3779 if (gnu_debuglink_filename
!= NULL
)
3781 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3782 bfd_get_filename (ibfd
));
3783 gnu_debuglink_filename
= NULL
;
3786 /* This is a no-op on non-Coff targets. */
3787 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3789 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3791 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3796 /* bfd_get_target does not return the correct value until
3797 bfd_check_format succeeds. */
3798 if (output_target
== NULL
)
3799 output_target
= bfd_get_target (ibfd
);
3801 obfd
= bfd_openw (output_filename
, output_target
);
3804 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3808 /* This is a no-op on non-Coff targets. */
3809 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3811 if (! copy_object (ibfd
, obfd
, input_arch
))
3814 /* PR 17512: file: 0f15796a.
3815 If the file could not be copied it may not be in a writeable
3816 state. So use bfd_close_all_done to avoid the possibility of
3817 writing uninitialised data into the file. */
3818 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3821 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3825 if (!bfd_close (ibfd
))
3828 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3834 bfd_error_type obj_error
= bfd_get_error ();
3835 bfd_error_type core_error
;
3837 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3839 /* This probably can't happen.. */
3840 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3841 free (obj_matching
);
3845 core_error
= bfd_get_error ();
3846 /* Report the object error in preference to the core error. */
3847 if (obj_error
!= core_error
)
3848 bfd_set_error (obj_error
);
3850 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3852 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3854 list_matching_formats (obj_matching
);
3855 free (obj_matching
);
3857 if (core_error
== bfd_error_file_ambiguously_recognized
)
3859 list_matching_formats (core_matching
);
3860 free (core_matching
);
3867 /* Add a name to the section renaming list. */
3870 add_section_rename (const char * old_name
, const char * new_name
,
3873 section_rename
* srename
;
3875 /* Check for conflicts first. */
3876 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3877 if (strcmp (srename
->old_name
, old_name
) == 0)
3879 /* Silently ignore duplicate definitions. */
3880 if (strcmp (srename
->new_name
, new_name
) == 0
3881 && srename
->flags
== flags
)
3884 fatal (_("Multiple renames of section %s"), old_name
);
3887 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3889 srename
->old_name
= old_name
;
3890 srename
->new_name
= new_name
;
3891 srename
->flags
= flags
;
3892 srename
->next
= section_rename_list
;
3894 section_rename_list
= srename
;
3897 /* Check the section rename list for a new name of the input section
3898 called OLD_NAME. Returns the new name if one is found and sets
3899 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3902 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3904 const section_rename
*srename
;
3906 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3907 if (strcmp (srename
->old_name
, old_name
) == 0)
3909 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3910 *returned_flags
= srename
->flags
;
3912 return srename
->new_name
;
3918 /* Once each of the sections is copied, we may still need to do some
3919 finalization work for private section headers. Do that here. */
3922 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3924 /* Allow the BFD backend to copy any private data it understands
3925 from the input section to the output section. */
3926 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3929 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3930 _("error in private header data"));
3934 /* All went well. */
3938 /* Create a section in OBFD with the same
3939 name and attributes as ISECTION in IBFD. */
3942 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3944 bfd
*obfd
= (bfd
*) obfdarg
;
3945 struct section_list
*p
;
3953 char *prefix
= NULL
;
3954 bfd_boolean make_nobits
;
3955 unsigned int alignment
;
3957 if (is_strip_section (ibfd
, isection
))
3960 /* Get the, possibly new, name of the output section. */
3961 name
= bfd_section_name (isection
);
3962 flags
= bfd_section_flags (isection
);
3963 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3965 flags
&= bfd_applicable_section_flags (ibfd
);
3966 flags
&= bfd_applicable_section_flags (obfd
);
3968 name
= find_section_rename (name
, &flags
);
3970 /* Prefix sections. */
3971 if (prefix_alloc_sections_string
3972 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
3973 prefix
= prefix_alloc_sections_string
;
3974 else if (prefix_sections_string
)
3975 prefix
= prefix_sections_string
;
3981 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3987 make_nobits
= FALSE
;
3989 p
= find_section_list (bfd_section_name (isection
), FALSE
,
3990 SECTION_CONTEXT_SET_FLAGS
);
3992 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3993 else if (strip_symbols
== STRIP_NONDEBUG
3994 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3995 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3997 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3998 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4002 /* Twiddle the input section flags so that it seems to
4003 elf.c:copy_private_bfd_data that section flags have not
4004 changed between input and output sections. This hack
4005 prevents wholesale rewriting of the program headers. */
4006 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4010 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4012 if (osection
== NULL
)
4014 err
= _("failed to create output section");
4019 elf_section_type (osection
) = SHT_NOBITS
;
4021 size
= bfd_section_size (isection
);
4022 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4024 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4025 else if (extract_symbol
)
4027 if (!bfd_set_section_size (osection
, size
))
4029 err
= _("failed to set size");
4033 vma
= bfd_section_vma (isection
);
4034 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4035 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4038 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4044 vma
+= change_section_address
;
4046 if (!bfd_set_section_vma (osection
, vma
))
4048 err
= _("failed to set vma");
4052 lma
= isection
->lma
;
4053 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4054 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4057 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4063 lma
+= change_section_address
;
4065 osection
->lma
= lma
;
4067 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4068 SECTION_CONTEXT_SET_ALIGNMENT
);
4070 alignment
= p
->alignment
;
4072 alignment
= bfd_section_alignment (isection
);
4074 /* FIXME: This is probably not enough. If we change the LMA we
4075 may have to recompute the header for the file as well. */
4076 if (!bfd_set_section_alignment (osection
, alignment
))
4078 err
= _("failed to set alignment");
4082 /* Copy merge entity size. */
4083 osection
->entsize
= isection
->entsize
;
4085 /* Copy compress status. */
4086 osection
->compress_status
= isection
->compress_status
;
4088 /* This used to be mangle_section; we do here to avoid using
4089 bfd_get_section_by_name since some formats allow multiple
4090 sections with the same name. */
4091 isection
->output_section
= osection
;
4092 isection
->output_offset
= 0;
4094 if ((isection
->flags
& SEC_GROUP
) != 0)
4096 asymbol
*gsym
= group_signature (isection
);
4100 gsym
->flags
|= BSF_KEEP
;
4101 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4102 elf_group_id (isection
) = gsym
;
4106 /* Allow the BFD backend to copy any private data it understands
4107 from the input section to the output section. */
4108 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4110 err
= _("failed to copy private data");
4114 /* All went well. */
4119 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4122 /* Return TRUE if input section ISECTION should be skipped. */
4125 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4131 /* If we have already failed earlier on,
4132 do not keep on generating complaints now. */
4139 if (is_strip_section (ibfd
, isection
))
4142 if (is_update_section (ibfd
, isection
))
4145 /* When merging a note section we skip the copying of the contents,
4146 but not the copying of the relocs associated with the contents. */
4147 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4150 flags
= bfd_section_flags (isection
);
4151 if ((flags
& SEC_GROUP
) != 0)
4154 osection
= isection
->output_section
;
4155 size
= bfd_section_size (isection
);
4157 if (size
== 0 || osection
== 0)
4163 /* Add section SECTION_PATTERN to the list of sections that will have their
4164 relocations removed. */
4167 handle_remove_relocations_option (const char *section_pattern
)
4169 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4172 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4173 otherwise return FALSE. If the user has requested that relocations be
4174 removed from a section that does not have relocations then this
4175 function will still return TRUE. */
4178 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4180 return (find_section_list (bfd_section_name (isection
), FALSE
,
4181 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4184 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4185 A special case is detected here, if the user asks to remove a relocation
4186 section (one starting with ".rela" or ".rel") then this removal must
4187 be done using a different technique in a relocatable object. */
4190 handle_remove_section_option (const char *section_pattern
)
4192 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4193 if (strncmp (section_pattern
, ".rel", 4) == 0)
4195 section_pattern
+= 4;
4196 if (*section_pattern
== 'a')
4198 if (*section_pattern
)
4199 handle_remove_relocations_option (section_pattern
);
4201 sections_removed
= TRUE
;
4204 /* Copy relocations in input section ISECTION of IBFD to an output
4205 section with the same name in OBFDARG. If stripping then don't
4206 copy any relocation info. */
4209 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4211 bfd
*obfd
= (bfd
*) obfdarg
;
4217 if (skip_section (ibfd
, isection
, FALSE
))
4220 osection
= isection
->output_section
;
4222 /* Core files and DWO files do not need to be relocated. */
4223 if (bfd_get_format (obfd
) == bfd_core
4224 || strip_symbols
== STRIP_NONDWO
4225 || discard_relocations (ibfd
, isection
))
4229 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4233 /* Do not complain if the target does not support relocations. */
4234 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4239 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4247 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4248 osection
->flags
&= ~SEC_RELOC
;
4252 if (isection
->orelocation
!= NULL
)
4254 /* Some other function has already set up the output relocs
4255 for us, so scan those instead of the default relocs. */
4256 relcount
= isection
->reloc_count
;
4257 relpp
= isection
->orelocation
;
4261 relpp
= (arelent
**) xmalloc (relsize
);
4262 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4266 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4267 _("relocation count is negative"));
4272 if (strip_symbols
== STRIP_ALL
)
4274 /* Remove relocations which are not in
4275 keep_strip_specific_list. */
4276 arelent
**temp_relpp
;
4277 long temp_relcount
= 0;
4280 temp_relpp
= (arelent
**) xmalloc (relsize
);
4281 for (i
= 0; i
< relcount
; i
++)
4283 /* PR 17512: file: 9e907e0c. */
4284 if (relpp
[i
]->sym_ptr_ptr
4286 && * relpp
[i
]->sym_ptr_ptr
)
4287 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4288 keep_specific_htab
))
4289 temp_relpp
[temp_relcount
++] = relpp
[i
];
4291 relcount
= temp_relcount
;
4292 if (isection
->orelocation
== NULL
)
4297 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4300 osection
->flags
&= ~SEC_RELOC
;
4306 /* Copy the data of input section ISECTION of IBFD
4307 to an output section with the same name in OBFD. */
4310 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4312 bfd
*obfd
= (bfd
*) obfdarg
;
4313 struct section_list
*p
;
4317 if (skip_section (ibfd
, isection
, TRUE
))
4320 osection
= isection
->output_section
;
4321 /* The output SHF_COMPRESSED section size is different from input if
4322 ELF classes of input and output aren't the same. We can't use
4323 the output section size since --interleave will shrink the output
4324 section. Size will be updated if the section is converted. */
4325 size
= bfd_section_size (isection
);
4327 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4328 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4330 bfd_byte
*memhunk
= NULL
;
4332 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4333 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4337 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4344 /* We don't handle leftover bytes (too many possible behaviors,
4345 and we don't know what the user wants). The section length
4346 must be a multiple of the number of bytes to swap. */
4347 if ((size
% reverse_bytes
) == 0)
4352 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4353 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4355 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4358 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4359 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4363 /* User must pad the section up in order to do this. */
4364 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4365 bfd_section_name (isection
), reverse_bytes
);
4370 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4371 char *from
= (char *) memhunk
+ copy_byte
;
4372 char *to
= (char *) memhunk
;
4373 char *end
= (char *) memhunk
+ size
;
4376 /* If the section address is not exactly divisible by the interleave,
4377 then we must bias the from address. If the copy_byte is less than
4378 the bias, then we must skip forward one interleave, and increment
4380 int extra
= isection
->lma
% interleave
;
4382 if (copy_byte
< extra
)
4385 for (; from
< end
; from
+= interleave
)
4386 for (i
= 0; i
< copy_width
; i
++)
4388 if (&from
[i
] >= end
)
4393 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4394 osection
->lma
/= interleave
;
4395 if (copy_byte
< extra
)
4399 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4402 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4408 else if ((p
= find_section_list (bfd_section_name (isection
),
4409 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4410 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4412 void *memhunk
= xmalloc (size
);
4414 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4415 flag--they can just remove the section entirely and add it
4416 back again. However, we do permit them to turn on the
4417 SEC_HAS_CONTENTS flag, and take it to mean that the section
4418 contents should be zeroed out. */
4420 memset (memhunk
, 0, size
);
4421 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4424 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4432 /* Get all the sections. This is used when --gap-fill or --pad-to is
4436 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4438 asection
***secppp
= (asection
***) secppparg
;
4440 **secppp
= osection
;
4444 /* Sort sections by LMA. This is called via qsort, and is used when
4445 --gap-fill or --pad-to is used. We force non loadable or empty
4446 sections to the front, where they are easier to ignore. */
4449 compare_section_lma (const void *arg1
, const void *arg2
)
4451 const asection
*sec1
= *(const asection
**) arg1
;
4452 const asection
*sec2
= *(const asection
**) arg2
;
4453 flagword flags1
, flags2
;
4455 /* Sort non loadable sections to the front. */
4456 flags1
= sec1
->flags
;
4457 flags2
= sec2
->flags
;
4458 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4459 || (flags1
& SEC_LOAD
) == 0)
4461 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4462 && (flags2
& SEC_LOAD
) != 0)
4467 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4468 || (flags2
& SEC_LOAD
) == 0)
4472 /* Sort sections by LMA. */
4473 if (sec1
->lma
> sec2
->lma
)
4475 if (sec1
->lma
< sec2
->lma
)
4478 /* Sort sections with the same LMA by size. */
4479 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4481 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4484 if (sec1
->id
> sec2
->id
)
4486 if (sec1
->id
< sec2
->id
)
4491 /* Mark all the symbols which will be used in output relocations with
4492 the BSF_KEEP flag so that those symbols will not be stripped.
4494 Ignore relocations which will not appear in the output file. */
4497 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4499 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4504 /* Ignore an input section with no corresponding output section. */
4505 if (isection
->output_section
== NULL
)
4508 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4511 /* Do not complain if the target does not support relocations. */
4512 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4514 bfd_fatal (bfd_get_filename (ibfd
));
4520 relpp
= (arelent
**) xmalloc (relsize
);
4521 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4523 bfd_fatal (bfd_get_filename (ibfd
));
4525 /* Examine each symbol used in a relocation. If it's not one of the
4526 special bfd section symbols, then mark it with BSF_KEEP. */
4527 for (i
= 0; i
< relcount
; i
++)
4529 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4530 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4531 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4532 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4533 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4534 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4535 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4542 /* Write out debugging information. */
4545 write_debugging_info (bfd
*obfd
, void *dhandle
,
4546 long *symcountp ATTRIBUTE_UNUSED
,
4547 asymbol
***symppp ATTRIBUTE_UNUSED
)
4549 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4550 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4552 bfd_byte
*syms
, *strings
= NULL
;
4553 bfd_size_type symsize
, stringsize
;
4554 asection
*stabsec
, *stabstrsec
;
4557 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4562 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4563 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4564 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4566 || stabstrsec
== NULL
4567 || !bfd_set_section_size (stabsec
, symsize
)
4568 || !bfd_set_section_size (stabstrsec
, stringsize
)
4569 || !bfd_set_section_alignment (stabsec
, 2)
4570 || !bfd_set_section_alignment (stabstrsec
, 0))
4572 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4573 _("can't create debugging section"));
4578 /* We can get away with setting the section contents now because
4579 the next thing the caller is going to do is copy over the
4580 real sections. We may someday have to split the contents
4581 setting out of this function. */
4582 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4583 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4586 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4587 _("can't set debugging section contents"));
4595 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4596 _("don't know how to write debugging information for %s"),
4597 bfd_get_target (obfd
));
4601 /* If neither -D nor -U was specified explicitly,
4602 then use the configured default. */
4604 default_deterministic (void)
4606 if (deterministic
< 0)
4607 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4611 strip_main (int argc
, char *argv
[])
4613 char *input_target
= NULL
;
4614 char *output_target
= NULL
;
4615 bfd_boolean show_version
= FALSE
;
4616 bfd_boolean formats_info
= FALSE
;
4619 char *output_file
= NULL
;
4620 bfd_boolean merge_notes_set
= FALSE
;
4622 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4623 strip_options
, (int *) 0)) != EOF
)
4628 input_target
= optarg
;
4631 output_target
= optarg
;
4634 input_target
= output_target
= optarg
;
4637 handle_remove_section_option (optarg
);
4639 case OPTION_KEEP_SECTION
:
4640 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4642 case OPTION_REMOVE_RELOCS
:
4643 handle_remove_relocations_option (optarg
);
4646 strip_symbols
= STRIP_ALL
;
4650 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4651 strip_symbols
= STRIP_DEBUG
;
4653 case OPTION_STRIP_DWO
:
4654 strip_symbols
= STRIP_DWO
;
4656 case OPTION_STRIP_UNNEEDED
:
4657 strip_symbols
= STRIP_UNNEEDED
;
4660 add_specific_symbol (optarg
, keep_specific_htab
);
4664 merge_notes_set
= TRUE
;
4666 case OPTION_NO_MERGE_NOTES
:
4667 merge_notes
= FALSE
;
4668 merge_notes_set
= TRUE
;
4671 add_specific_symbol (optarg
, strip_specific_htab
);
4674 output_file
= optarg
;
4677 preserve_dates
= TRUE
;
4680 deterministic
= TRUE
;
4683 deterministic
= FALSE
;
4686 discard_locals
= LOCALS_ALL
;
4689 discard_locals
= LOCALS_START_L
;
4695 show_version
= TRUE
;
4697 case OPTION_FORMATS_INFO
:
4698 formats_info
= TRUE
;
4700 case OPTION_ONLY_KEEP_DEBUG
:
4701 strip_symbols
= STRIP_NONDEBUG
;
4703 case OPTION_KEEP_FILE_SYMBOLS
:
4704 keep_file_symbols
= 1;
4707 /* We've been given a long option. */
4714 strip_usage (stdout
, 0);
4716 strip_usage (stderr
, 1);
4720 /* If the user has not expressly chosen to merge/not-merge ELF notes
4721 then enable the merging unless we are stripping debug or dwo info. */
4722 if (! merge_notes_set
4723 && (strip_symbols
== STRIP_UNDEF
4724 || strip_symbols
== STRIP_ALL
4725 || strip_symbols
== STRIP_UNNEEDED
4726 || strip_symbols
== STRIP_NONDEBUG
4727 || strip_symbols
== STRIP_NONDWO
))
4737 print_version ("strip");
4739 default_deterministic ();
4741 /* Default is to strip all symbols. */
4742 if (strip_symbols
== STRIP_UNDEF
4743 && discard_locals
== LOCALS_UNDEF
4744 && htab_elements (strip_specific_htab
) == 0)
4745 strip_symbols
= STRIP_ALL
;
4747 if (output_target
== NULL
)
4748 output_target
= input_target
;
4752 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4753 strip_usage (stderr
, 1);
4755 for (; i
< argc
; i
++)
4757 int hold_status
= status
;
4758 struct stat statbuf
;
4761 if (get_file_size (argv
[i
]) < 1)
4768 /* No need to check the return value of stat().
4769 It has already been checked in get_file_size(). */
4770 stat (argv
[i
], &statbuf
);
4772 if (output_file
== NULL
4773 || filename_cmp (argv
[i
], output_file
) == 0)
4774 tmpname
= make_tempname (argv
[i
]);
4776 tmpname
= output_file
;
4778 if (tmpname
== NULL
)
4780 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4781 _("could not create temporary file to hold stripped copy"));
4787 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4791 set_times (tmpname
, &statbuf
);
4792 if (output_file
!= tmpname
)
4793 status
= (smart_rename (tmpname
,
4794 output_file
? output_file
: argv
[i
],
4795 preserve_dates
) != 0);
4797 status
= hold_status
;
4800 unlink_if_ordinary (tmpname
);
4801 if (output_file
!= tmpname
)
4808 /* Set up PE subsystem. */
4811 set_pe_subsystem (const char *s
)
4813 const char *version
, *subsystem
;
4823 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4824 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4825 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4826 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4827 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4828 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4829 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4830 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4831 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4832 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4838 /* Check for the presence of a version number. */
4839 version
= strchr (s
, ':');
4840 if (version
== NULL
)
4844 int len
= version
- s
;
4848 version
= copy
+ 1 + len
;
4849 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4851 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4853 non_fatal (_("%s: bad version in PE subsystem"), s
);
4856 /* Check for numeric subsystem. */
4857 value
= (short) strtol (subsystem
, ©
, 0);
4860 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4861 if (v
[i
].value
== value
)
4863 pe_subsystem
= value
;
4864 set_def
= v
[i
].set_def
;
4870 /* Search for subsystem by name. */
4871 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4872 if (strcmp (subsystem
, v
[i
].name
) == 0)
4874 pe_subsystem
= v
[i
].value
;
4875 set_def
= v
[i
].set_def
;
4883 fatal (_("unknown PE subsystem: %s"), s
);
4888 if (pe_file_alignment
== (bfd_vma
) -1)
4889 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4890 if (pe_section_alignment
== (bfd_vma
) -1)
4891 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4895 free ((char *) subsystem
);
4898 /* Convert EFI target to PEI target. */
4901 convert_efi_target (char *efi
)
4907 if (strcmp (efi
+ 4, "ia32") == 0)
4909 /* Change ia32 to i386. */
4914 else if (strcmp (efi
+ 4, "x86_64") == 0)
4916 /* Change x86_64 to x86-64. */
4921 /* Allocate and return a pointer to a struct section_add, initializing the
4922 structure using ARG, a string in the format "sectionname=filename".
4923 The returned structure will have its next pointer set to NEXT. The
4924 OPTION field is the name of the command line option currently being
4925 parsed, and is only used if an error needs to be reported. */
4927 static struct section_add
*
4928 init_section_add (const char *arg
,
4929 struct section_add
*next
,
4932 struct section_add
*pa
;
4935 s
= strchr (arg
, '=');
4937 fatal (_("bad format for %s"), option
);
4939 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4940 pa
->name
= xstrndup (arg
, s
- arg
);
4941 pa
->filename
= s
+ 1;
4943 pa
->contents
= NULL
;
4949 /* Load the file specified in PA, allocating memory to hold the file
4950 contents, and store a pointer to the allocated memory in the contents
4951 field of PA. The size field of PA is also updated. All errors call
4955 section_add_load_file (struct section_add
*pa
)
4960 /* We don't use get_file_size so that we can do
4961 --add-section .note.GNU_stack=/dev/null
4962 get_file_size doesn't work on /dev/null. */
4964 f
= fopen (pa
->filename
, FOPEN_RB
);
4966 fatal (_("cannot open: %s: %s"),
4967 pa
->filename
, strerror (errno
));
4971 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
4979 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
4982 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
4984 fatal (_("%s: fread failed"), pa
->filename
);
4995 copy_main (int argc
, char *argv
[])
4997 char *input_filename
= NULL
;
4998 char *output_filename
= NULL
;
5000 char *input_target
= NULL
;
5001 char *output_target
= NULL
;
5002 bfd_boolean show_version
= FALSE
;
5003 bfd_boolean change_warn
= TRUE
;
5004 bfd_boolean formats_info
= FALSE
;
5005 bfd_boolean use_globalize
= FALSE
;
5006 bfd_boolean use_keep_global
= FALSE
;
5008 struct stat statbuf
;
5009 const bfd_arch_info_type
*input_arch
= NULL
;
5011 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5012 copy_options
, (int *) 0)) != EOF
)
5017 copy_byte
= atoi (optarg
);
5019 fatal (_("byte number must be non-negative"));
5023 input_arch
= bfd_scan_arch (optarg
);
5024 if (input_arch
== NULL
)
5025 fatal (_("architecture %s unknown"), optarg
);
5031 interleave
= atoi (optarg
);
5033 fatal (_("interleave must be positive"));
5039 case OPTION_INTERLEAVE_WIDTH
:
5040 copy_width
= atoi (optarg
);
5042 fatal(_("interleave width must be positive"));
5046 case 's': /* "source" - 'I' is preferred */
5047 input_target
= optarg
;
5051 case 'd': /* "destination" - 'O' is preferred */
5052 output_target
= optarg
;
5056 input_target
= output_target
= optarg
;
5060 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5061 sections_copied
= TRUE
;
5065 handle_remove_section_option (optarg
);
5068 case OPTION_KEEP_SECTION
:
5069 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5072 case OPTION_REMOVE_RELOCS
:
5073 handle_remove_relocations_option (optarg
);
5077 strip_symbols
= STRIP_ALL
;
5081 strip_symbols
= STRIP_DEBUG
;
5084 case OPTION_STRIP_DWO
:
5085 strip_symbols
= STRIP_DWO
;
5088 case OPTION_STRIP_UNNEEDED
:
5089 strip_symbols
= STRIP_UNNEEDED
;
5092 case OPTION_ONLY_KEEP_DEBUG
:
5093 strip_symbols
= STRIP_NONDEBUG
;
5096 case OPTION_KEEP_FILE_SYMBOLS
:
5097 keep_file_symbols
= 1;
5100 case OPTION_ADD_GNU_DEBUGLINK
:
5101 long_section_names
= ENABLE
;
5102 gnu_debuglink_filename
= optarg
;
5106 add_specific_symbol (optarg
, keep_specific_htab
);
5112 case OPTION_NO_MERGE_NOTES
:
5113 merge_notes
= FALSE
;
5117 add_specific_symbol (optarg
, strip_specific_htab
);
5120 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5121 add_specific_symbol (optarg
, strip_unneeded_htab
);
5125 add_specific_symbol (optarg
, localize_specific_htab
);
5128 case OPTION_GLOBALIZE_SYMBOL
:
5129 use_globalize
= TRUE
;
5130 add_specific_symbol (optarg
, globalize_specific_htab
);
5134 use_keep_global
= TRUE
;
5135 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5139 add_specific_symbol (optarg
, weaken_specific_htab
);
5143 preserve_dates
= TRUE
;
5147 deterministic
= TRUE
;
5151 deterministic
= FALSE
;
5159 discard_locals
= LOCALS_ALL
;
5163 discard_locals
= LOCALS_START_L
;
5171 show_version
= TRUE
;
5174 case OPTION_FORMATS_INFO
:
5175 formats_info
= TRUE
;
5182 case OPTION_ADD_SECTION
:
5183 add_sections
= init_section_add (optarg
, add_sections
,
5185 section_add_load_file (add_sections
);
5188 case OPTION_UPDATE_SECTION
:
5189 update_sections
= init_section_add (optarg
, update_sections
,
5190 "--update-section");
5191 section_add_load_file (update_sections
);
5194 case OPTION_DUMP_SECTION
:
5195 dump_sections
= init_section_add (optarg
, dump_sections
,
5199 case OPTION_ADD_SYMBOL
:
5202 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5204 newsym
->next
= NULL
;
5205 s
= strchr (optarg
, '=');
5207 fatal (_("bad format for %s"), "--add-symbol");
5208 t
= strchr (s
+ 1, ':');
5210 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5213 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5214 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5218 newsym
->section
= NULL
;
5219 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5223 t
= strchr (t
+ 1, ',');
5224 newsym
->othersym
= NULL
;
5226 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5228 newsym
->flags
= BSF_GLOBAL
;
5230 /* Keep 'othersym' symbols at the front of the list. */
5231 if (newsym
->othersym
)
5233 newsym
->next
= add_sym_list
;
5235 add_sym_tail
= &newsym
->next
;
5236 add_sym_list
= newsym
;
5240 *add_sym_tail
= newsym
;
5241 add_sym_tail
= &newsym
->next
;
5247 case OPTION_CHANGE_START
:
5248 change_start
= parse_vma (optarg
, "--change-start");
5251 case OPTION_CHANGE_SECTION_ADDRESS
:
5252 case OPTION_CHANGE_SECTION_LMA
:
5253 case OPTION_CHANGE_SECTION_VMA
:
5255 struct section_list
* p
;
5256 unsigned int context
= 0;
5260 char *option
= NULL
;
5265 case OPTION_CHANGE_SECTION_ADDRESS
:
5266 option
= "--change-section-address";
5267 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5269 case OPTION_CHANGE_SECTION_LMA
:
5270 option
= "--change-section-lma";
5271 context
= SECTION_CONTEXT_ALTER_LMA
;
5273 case OPTION_CHANGE_SECTION_VMA
:
5274 option
= "--change-section-vma";
5275 context
= SECTION_CONTEXT_ALTER_VMA
;
5279 s
= strchr (optarg
, '=');
5282 s
= strchr (optarg
, '+');
5285 s
= strchr (optarg
, '-');
5287 fatal (_("bad format for %s"), option
);
5292 /* Correct the context. */
5295 case OPTION_CHANGE_SECTION_ADDRESS
:
5296 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5298 case OPTION_CHANGE_SECTION_LMA
:
5299 context
= SECTION_CONTEXT_SET_LMA
;
5301 case OPTION_CHANGE_SECTION_VMA
:
5302 context
= SECTION_CONTEXT_SET_VMA
;
5308 name
= (char *) xmalloc (len
+ 1);
5309 strncpy (name
, optarg
, len
);
5312 p
= find_section_list (name
, TRUE
, context
);
5314 val
= parse_vma (s
+ 1, option
);
5320 case OPTION_CHANGE_SECTION_ADDRESS
:
5324 case OPTION_CHANGE_SECTION_LMA
:
5328 case OPTION_CHANGE_SECTION_VMA
:
5335 case OPTION_CHANGE_ADDRESSES
:
5336 change_section_address
= parse_vma (optarg
, "--change-addresses");
5337 change_start
= change_section_address
;
5340 case OPTION_CHANGE_WARNINGS
:
5344 case OPTION_CHANGE_LEADING_CHAR
:
5345 change_leading_char
= TRUE
;
5348 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5351 if (strcasecmp (optarg
, "none") == 0)
5352 do_debug_sections
= decompress
;
5353 else if (strcasecmp (optarg
, "zlib") == 0)
5354 do_debug_sections
= compress_zlib
;
5355 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5356 do_debug_sections
= compress_gnu_zlib
;
5357 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5358 do_debug_sections
= compress_gabi_zlib
;
5360 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5364 do_debug_sections
= compress
;
5367 case OPTION_DEBUGGING
:
5368 convert_debugging
= TRUE
;
5371 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5372 do_debug_sections
= decompress
;
5375 case OPTION_ELF_STT_COMMON
:
5376 if (strcasecmp (optarg
, "yes") == 0)
5377 do_elf_stt_common
= elf_stt_common
;
5378 else if (strcasecmp (optarg
, "no") == 0)
5379 do_elf_stt_common
= no_elf_stt_common
;
5381 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5385 case OPTION_GAP_FILL
:
5387 bfd_vma gap_fill_vma
;
5389 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5390 gap_fill
= (bfd_byte
) gap_fill_vma
;
5391 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5395 sprintf_vma (buff
, gap_fill_vma
);
5397 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5400 gap_fill_set
= TRUE
;
5404 case OPTION_NO_CHANGE_WARNINGS
:
5405 change_warn
= FALSE
;
5409 pad_to
= parse_vma (optarg
, "--pad-to");
5413 case OPTION_REMOVE_LEADING_CHAR
:
5414 remove_leading_char
= TRUE
;
5417 case OPTION_REDEFINE_SYM
:
5419 /* Insert this redefinition onto redefine_specific_htab. */
5423 const char *nextarg
;
5424 char *source
, *target
;
5426 s
= strchr (optarg
, '=');
5428 fatal (_("bad format for %s"), "--redefine-sym");
5431 source
= (char *) xmalloc (len
+ 1);
5432 strncpy (source
, optarg
, len
);
5436 len
= strlen (nextarg
);
5437 target
= (char *) xmalloc (len
+ 1);
5438 strcpy (target
, nextarg
);
5440 add_redefine_and_check ("--redefine-sym", source
, target
);
5447 case OPTION_REDEFINE_SYMS
:
5448 add_redefine_syms_file (optarg
);
5451 case OPTION_SET_SECTION_FLAGS
:
5453 struct section_list
*p
;
5458 s
= strchr (optarg
, '=');
5460 fatal (_("bad format for %s"), "--set-section-flags");
5463 name
= (char *) xmalloc (len
+ 1);
5464 strncpy (name
, optarg
, len
);
5467 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5469 p
->flags
= parse_flags (s
+ 1);
5473 case OPTION_SET_SECTION_ALIGNMENT
:
5475 struct section_list
*p
;
5481 s
= strchr (optarg
, '=');
5483 fatal (_("bad format for --set-section-alignment: argument needed"));
5485 align
= atoi (s
+ 1);
5487 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5489 /* Convert integer alignment into a power-of-two alignment. */
5491 while ((align
& 1) == 0)
5498 /* Number has more than on 1, i.e. wasn't a power of 2. */
5499 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5501 /* Add the alignment setting to the section list. */
5503 name
= (char *) xmalloc (len
+ 1);
5504 strncpy (name
, optarg
, len
);
5507 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5509 p
->alignment
= palign
;
5513 case OPTION_RENAME_SECTION
:
5516 const char *eq
, *fl
;
5521 eq
= strchr (optarg
, '=');
5523 fatal (_("bad format for %s"), "--rename-section");
5527 fatal (_("bad format for %s"), "--rename-section");
5529 old_name
= (char *) xmalloc (len
+ 1);
5530 strncpy (old_name
, optarg
, len
);
5534 fl
= strchr (eq
, ',');
5537 flags
= parse_flags (fl
+ 1);
5547 fatal (_("bad format for %s"), "--rename-section");
5549 new_name
= (char *) xmalloc (len
+ 1);
5550 strncpy (new_name
, eq
, len
);
5553 add_section_rename (old_name
, new_name
, flags
);
5557 case OPTION_SET_START
:
5558 set_start
= parse_vma (optarg
, "--set-start");
5559 set_start_set
= TRUE
;
5562 case OPTION_SREC_LEN
:
5563 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5566 case OPTION_SREC_FORCES3
:
5567 _bfd_srec_forceS3
= TRUE
;
5570 case OPTION_STRIP_SYMBOLS
:
5571 add_specific_symbols (optarg
, strip_specific_htab
,
5572 &strip_specific_buffer
);
5575 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5576 add_specific_symbols (optarg
, strip_unneeded_htab
,
5577 &strip_unneeded_buffer
);
5580 case OPTION_KEEP_SYMBOLS
:
5581 add_specific_symbols (optarg
, keep_specific_htab
,
5582 &keep_specific_buffer
);
5585 case OPTION_LOCALIZE_HIDDEN
:
5586 localize_hidden
= TRUE
;
5589 case OPTION_LOCALIZE_SYMBOLS
:
5590 add_specific_symbols (optarg
, localize_specific_htab
,
5591 &localize_specific_buffer
);
5594 case OPTION_LONG_SECTION_NAMES
:
5595 if (!strcmp ("enable", optarg
))
5596 long_section_names
= ENABLE
;
5597 else if (!strcmp ("disable", optarg
))
5598 long_section_names
= DISABLE
;
5599 else if (!strcmp ("keep", optarg
))
5600 long_section_names
= KEEP
;
5602 fatal (_("unknown long section names option '%s'"), optarg
);
5605 case OPTION_GLOBALIZE_SYMBOLS
:
5606 use_globalize
= TRUE
;
5607 add_specific_symbols (optarg
, globalize_specific_htab
,
5608 &globalize_specific_buffer
);
5611 case OPTION_KEEPGLOBAL_SYMBOLS
:
5612 use_keep_global
= TRUE
;
5613 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5614 &keepglobal_specific_buffer
);
5617 case OPTION_WEAKEN_SYMBOLS
:
5618 add_specific_symbols (optarg
, weaken_specific_htab
,
5619 &weaken_specific_buffer
);
5622 case OPTION_ALT_MACH_CODE
:
5623 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5624 if (use_alt_mach_code
== 0)
5625 fatal (_("unable to parse alternative machine code"));
5628 case OPTION_PREFIX_SYMBOLS
:
5629 prefix_symbols_string
= optarg
;
5632 case OPTION_PREFIX_SECTIONS
:
5633 prefix_sections_string
= optarg
;
5636 case OPTION_PREFIX_ALLOC_SECTIONS
:
5637 prefix_alloc_sections_string
= optarg
;
5640 case OPTION_READONLY_TEXT
:
5641 bfd_flags_to_set
|= WP_TEXT
;
5642 bfd_flags_to_clear
&= ~WP_TEXT
;
5645 case OPTION_WRITABLE_TEXT
:
5646 bfd_flags_to_clear
|= WP_TEXT
;
5647 bfd_flags_to_set
&= ~WP_TEXT
;
5651 bfd_flags_to_set
|= D_PAGED
;
5652 bfd_flags_to_clear
&= ~D_PAGED
;
5656 bfd_flags_to_clear
|= D_PAGED
;
5657 bfd_flags_to_set
&= ~D_PAGED
;
5660 case OPTION_EXTRACT_DWO
:
5661 strip_symbols
= STRIP_NONDWO
;
5664 case OPTION_EXTRACT_SYMBOL
:
5665 extract_symbol
= TRUE
;
5668 case OPTION_REVERSE_BYTES
:
5670 int prev
= reverse_bytes
;
5672 reverse_bytes
= atoi (optarg
);
5673 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5674 fatal (_("number of bytes to reverse must be positive and even"));
5676 if (prev
&& prev
!= reverse_bytes
)
5677 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5682 case OPTION_FILE_ALIGNMENT
:
5683 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5689 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5691 || (*end
!= '.' && *end
!= '\0'))
5692 non_fatal (_("%s: invalid reserve value for --heap"),
5694 else if (*end
!= '\0')
5696 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5698 non_fatal (_("%s: invalid commit value for --heap"),
5704 case OPTION_IMAGE_BASE
:
5705 pe_image_base
= parse_vma (optarg
, "--image-base");
5708 case OPTION_PE_SECTION_ALIGNMENT
:
5709 pe_section_alignment
= parse_vma (optarg
,
5710 "--section-alignment");
5713 case OPTION_SUBSYSTEM
:
5714 set_pe_subsystem (optarg
);
5720 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5722 || (*end
!= '.' && *end
!= '\0'))
5723 non_fatal (_("%s: invalid reserve value for --stack"),
5725 else if (*end
!= '\0')
5727 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5729 non_fatal (_("%s: invalid commit value for --stack"),
5735 case OPTION_VERILOG_DATA_WIDTH
:
5736 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5737 if (VerilogDataWidth
< 1)
5738 fatal (_("verilog data width must be at least 1 byte"));
5742 /* We've been given a long option. */
5747 copy_usage (stdout
, 0);
5750 copy_usage (stderr
, 1);
5754 if (use_globalize
&& use_keep_global
)
5755 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5764 print_version ("objcopy");
5766 if (interleave
&& copy_byte
== -1)
5767 fatal (_("interleave start byte must be set with --byte"));
5769 if (copy_byte
>= interleave
)
5770 fatal (_("byte number must be less than interleave"));
5772 if (copy_width
> interleave
- copy_byte
)
5773 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5775 if (optind
== argc
|| optind
+ 2 < argc
)
5776 copy_usage (stderr
, 1);
5778 input_filename
= argv
[optind
];
5779 if (optind
+ 1 < argc
)
5780 output_filename
= argv
[optind
+ 1];
5782 default_deterministic ();
5784 /* Default is to strip no symbols. */
5785 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5786 strip_symbols
= STRIP_NONE
;
5788 if (output_target
== NULL
)
5789 output_target
= input_target
;
5791 /* Convert input EFI target to PEI target. */
5792 if (input_target
!= NULL
5793 && strncmp (input_target
, "efi-", 4) == 0)
5797 efi
= xstrdup (output_target
+ 4);
5798 if (strncmp (efi
, "bsdrv-", 6) == 0
5799 || strncmp (efi
, "rtdrv-", 6) == 0)
5801 else if (strncmp (efi
, "app-", 4) != 0)
5802 fatal (_("unknown input EFI target: %s"), input_target
);
5805 convert_efi_target (efi
);
5808 /* Convert output EFI target to PEI target. */
5809 if (output_target
!= NULL
5810 && strncmp (output_target
, "efi-", 4) == 0)
5814 efi
= xstrdup (output_target
+ 4);
5815 if (strncmp (efi
, "app-", 4) == 0)
5817 if (pe_subsystem
== -1)
5818 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5820 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5822 if (pe_subsystem
== -1)
5823 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5826 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5828 if (pe_subsystem
== -1)
5829 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5833 fatal (_("unknown output EFI target: %s"), output_target
);
5835 if (pe_file_alignment
== (bfd_vma
) -1)
5836 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5837 if (pe_section_alignment
== (bfd_vma
) -1)
5838 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5840 output_target
= efi
;
5841 convert_efi_target (efi
);
5845 if (stat (input_filename
, & statbuf
) < 0)
5846 fatal (_("warning: could not locate '%s'. System error message: %s"),
5847 input_filename
, strerror (errno
));
5849 /* If there is no destination file, or the source and destination files
5850 are the same, then create a temp and rename the result into the input. */
5851 if (output_filename
== NULL
5852 || filename_cmp (input_filename
, output_filename
) == 0)
5853 tmpname
= make_tempname (input_filename
);
5855 tmpname
= output_filename
;
5857 if (tmpname
== NULL
)
5858 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5859 input_filename
, strerror (errno
));
5861 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5865 set_times (tmpname
, &statbuf
);
5866 if (tmpname
!= output_filename
)
5867 status
= (smart_rename (tmpname
, input_filename
,
5868 preserve_dates
) != 0);
5871 unlink_if_ordinary (tmpname
);
5873 if (tmpname
!= output_filename
)
5878 struct section_list
*p
;
5880 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5884 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5888 sprintf_vma (buff
, p
->vma_val
);
5890 /* xgettext:c-format */
5891 non_fatal (_("%s %s%c0x%s never used"),
5892 "--change-section-vma",
5894 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5898 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5902 sprintf_vma (buff
, p
->lma_val
);
5904 /* xgettext:c-format */
5905 non_fatal (_("%s %s%c0x%s never used"),
5906 "--change-section-lma",
5908 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5915 if (strip_specific_buffer
)
5916 free (strip_specific_buffer
);
5918 if (strip_unneeded_buffer
)
5919 free (strip_unneeded_buffer
);
5921 if (keep_specific_buffer
)
5922 free (keep_specific_buffer
);
5924 if (localize_specific_buffer
)
5925 free (globalize_specific_buffer
);
5927 if (globalize_specific_buffer
)
5928 free (globalize_specific_buffer
);
5930 if (keepglobal_specific_buffer
)
5931 free (keepglobal_specific_buffer
);
5933 if (weaken_specific_buffer
)
5934 free (weaken_specific_buffer
);
5940 main (int argc
, char *argv
[])
5942 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5943 setlocale (LC_MESSAGES
, "");
5945 #if defined (HAVE_SETLOCALE)
5946 setlocale (LC_CTYPE
, "");
5948 bindtextdomain (PACKAGE
, LOCALEDIR
);
5949 textdomain (PACKAGE
);
5951 program_name
= argv
[0];
5952 xmalloc_set_program_name (program_name
);
5954 START_PROGRESS (program_name
, 0);
5956 expandargv (&argc
, &argv
);
5958 strip_symbols
= STRIP_UNDEF
;
5959 discard_locals
= LOCALS_UNDEF
;
5961 if (bfd_init () != BFD_INIT_MAGIC
)
5962 fatal (_("fatal error: libbfd ABI mismatch"));
5963 set_default_bfd_target ();
5967 int i
= strlen (program_name
);
5968 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5969 /* Drop the .exe suffix, if any. */
5970 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
5973 program_name
[i
] = '\0';
5976 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
5979 create_symbol_htabs ();
5982 bfd_set_error_program_name (argv
[0]);
5985 strip_main (argc
, argv
);
5987 copy_main (argc
, argv
);
5989 END_PROGRESS (program_name
);