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. */
1552 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1553 && (change_leading_char
1554 || (remove_leading_char
1555 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1557 || bfd_is_com_section (bfd_asymbol_section (sym
)))));
1559 /* Check if we will add a new leading character. */
1562 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1563 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1564 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1566 /* Short circuit for change_leading_char if we can do it in-place. */
1567 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1569 name
[0] = bfd_get_symbol_leading_char (obfd
);
1570 bfd_set_asymbol_name (sym
, name
);
1571 rem_leading_char
= FALSE
;
1572 add_leading_char
= FALSE
;
1575 /* Remove leading char. */
1576 if (rem_leading_char
)
1577 bfd_set_asymbol_name (sym
, ++name
);
1579 /* Add new leading char and/or prefix. */
1580 if (add_leading_char
|| prefix_symbols_string
)
1583 size_t len
= strlen (name
) + 1;
1585 if (add_leading_char
)
1587 if (prefix_symbols_string
)
1588 len
+= strlen (prefix_symbols_string
);
1590 ptr
= n
= (char *) xmalloc (len
);
1591 if (add_leading_char
)
1592 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1594 if (prefix_symbols_string
)
1596 strcpy (ptr
, prefix_symbols_string
);
1597 ptr
+= strlen (prefix_symbols_string
);
1601 bfd_set_asymbol_name (sym
, n
);
1605 if (strip_symbols
== STRIP_ALL
)
1607 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1608 || ((flags
& BSF_SECTION_SYM
) != 0
1609 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1613 used_in_reloc
= TRUE
;
1615 else if (relocatable
/* Relocatable file. */
1616 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1617 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1619 else if (bfd_decode_symclass (sym
) == 'I')
1620 /* Global symbols in $idata sections need to be retained
1621 even if relocatable is FALSE. External users of the
1622 library containing the $idata section may reference these
1625 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1626 || (flags
& BSF_WEAK
) != 0
1628 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1629 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1630 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1631 keep
= (strip_symbols
!= STRIP_DEBUG
1632 && strip_symbols
!= STRIP_UNNEEDED
1633 && ! convert_debugging
);
1634 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1635 /* COMDAT sections store special information in local
1636 symbols, so we cannot risk stripping any of them. */
1638 else /* Local symbol. */
1639 keep
= (strip_symbols
!= STRIP_UNNEEDED
1640 && (discard_locals
!= LOCALS_ALL
1641 && (discard_locals
!= LOCALS_START_L
1642 || ! bfd_is_local_label (abfd
, sym
))));
1644 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1646 /* There are multiple ways to set 'keep' above, but if it
1647 was the relocatable symbol case, then that's an error. */
1650 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1658 && !(flags
& BSF_KEEP
)
1659 && is_specified_symbol (name
, strip_unneeded_htab
))
1663 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1664 || is_specified_symbol (name
, keep_specific_htab
)))
1667 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1672 if ((flags
& BSF_GLOBAL
) != 0
1673 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1675 sym
->flags
&= ~ BSF_GLOBAL
;
1676 sym
->flags
|= BSF_WEAK
;
1680 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1681 && (is_specified_symbol (name
, localize_specific_htab
)
1682 || (htab_elements (keepglobal_specific_htab
) != 0
1683 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1684 || (localize_hidden
&& is_hidden_symbol (sym
))))
1686 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1687 sym
->flags
|= BSF_LOCAL
;
1691 && (flags
& BSF_LOCAL
)
1692 && is_specified_symbol (name
, globalize_specific_htab
))
1694 sym
->flags
&= ~ BSF_LOCAL
;
1695 sym
->flags
|= BSF_GLOBAL
;
1698 to
[dst_count
++] = sym
;
1703 struct addsym_node
*ptr
= add_sym_list
;
1705 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1709 if (ptr
->othersym
!= empty_name
)
1710 fatal (_("'before=%s' not found"), ptr
->othersym
);
1713 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1719 to
[dst_count
] = NULL
;
1724 /* Find the redefined name of symbol SOURCE. */
1727 lookup_sym_redefinition (const char *source
)
1729 struct redefine_node key_node
= {(char *) source
, NULL
};
1730 struct redefine_node
*redef_node
1731 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1733 return redef_node
== NULL
? source
: redef_node
->target
;
1736 /* Insert a node into symbol redefine hash tabel. */
1739 add_redefine_and_check (const char *cause
, const char *source
,
1742 struct redefine_node
*new_node
1743 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1745 new_node
->source
= strdup (source
);
1746 new_node
->target
= strdup (target
);
1748 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1749 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1752 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1753 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1756 /* Insert the NEW_NODE into hash table for quick search. */
1757 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1759 /* Insert the target string into the reverse hash table, this is needed for
1760 duplicated target string check. */
1761 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1765 /* Handle the --redefine-syms option. Read lines containing "old new"
1766 from the file, and add them to the symbol redefine list. */
1769 add_redefine_syms_file (const char *filename
)
1778 file
= fopen (filename
, "r");
1780 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1781 filename
, strerror (errno
));
1784 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1792 /* Collect the input symbol name. */
1793 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1801 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1809 /* Eat white space between the symbol names. */
1810 while (IS_WHITESPACE (c
))
1812 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1817 /* Collect the output symbol name. */
1819 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1827 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1835 /* Eat white space at end of line. */
1836 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1841 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1842 || c
== '\n' || c
== EOF
)
1845 /* Append the redefinition to the list. */
1847 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1858 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1860 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1861 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1864 /* Eat the rest of the line and finish it. */
1865 while (c
!= '\n' && c
!= EOF
)
1871 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1877 /* Copy unknown object file IBFD onto OBFD.
1878 Returns TRUE upon success, FALSE otherwise. */
1881 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1889 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1891 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1898 non_fatal (_("stat returns negative size for `%s'"),
1899 bfd_get_archive_filename (ibfd
));
1903 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1905 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1910 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1911 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1913 cbuf
= (char *) xmalloc (BUFSIZE
);
1915 while (ncopied
< size
)
1917 tocopy
= size
- ncopied
;
1918 if (tocopy
> BUFSIZE
)
1921 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1922 != (bfd_size_type
) tocopy
)
1924 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1929 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1930 != (bfd_size_type
) tocopy
)
1932 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1940 /* We should at least to be able to read it back when copying an
1941 unknown object in an archive. */
1942 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1947 typedef struct objcopy_internal_note
1949 Elf_Internal_Note note
;
1950 unsigned long padded_namesz
;
1953 } objcopy_internal_note
;
1955 #define DEBUG_MERGE 0
1958 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1960 #define merge_debug(format, ...)
1963 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
1966 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
1967 objcopy_internal_note
* pnote2
)
1969 if (pnote1
->end
< pnote2
->start
)
1970 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1971 Really we should extract the alignment of the section
1972 covered by the notes. */
1973 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1975 if (pnote2
->end
< pnote2
->start
)
1976 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
1978 if (pnote1
->end
< pnote2
->end
)
1981 if (pnote2
->end
< pnote1
->end
)
1987 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
1990 contained_by (objcopy_internal_note
* needle
,
1991 objcopy_internal_note
* haystack
)
1993 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
1997 is_open_note (objcopy_internal_note
* pnote
)
1999 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2003 is_func_note (objcopy_internal_note
* pnote
)
2005 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2009 is_deleted_note (objcopy_internal_note
* pnote
)
2011 return pnote
->note
.type
== 0;
2015 is_version_note (objcopy_internal_note
* pnote
)
2017 return (pnote
->note
.namesz
> 4
2018 && pnote
->note
.namedata
[0] == 'G'
2019 && pnote
->note
.namedata
[1] == 'A'
2020 && pnote
->note
.namedata
[2] == '$'
2021 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2025 is_64bit (bfd
* abfd
)
2027 /* Should never happen, but let's be paranoid. */
2028 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2031 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2034 /* This sorting function is used to get the notes into an order
2035 that makes merging easy. */
2038 compare_gnu_build_notes (const void * data1
, const void * data2
)
2040 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2041 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2043 /* Sort notes based upon the attribute they record. */
2044 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2045 pnote2
->note
.namedata
+ 3,
2046 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2047 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2051 if (pnote1
->end
< pnote2
->start
)
2053 if (pnote1
->start
> pnote2
->end
)
2056 /* Overlaps - we should merge the two ranges. */
2057 if (pnote1
->start
< pnote2
->start
)
2059 if (pnote1
->end
> pnote2
->end
)
2061 if (pnote1
->end
< pnote2
->end
)
2064 /* Put OPEN notes before function notes. */
2065 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2067 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2073 /* This sorting function is used to get the notes into an order
2074 that makes eliminating address ranges easier. */
2077 sort_gnu_build_notes (const void * data1
, const void * data2
)
2079 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2080 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2082 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2084 /* Move deleted notes to the end. */
2085 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2088 /* Move OPEN notes to the start. */
2089 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2092 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2095 return 1; /* 1: F 2: O */
2098 /* Sort by starting address. */
2099 if (pnote1
->start
< pnote2
->start
)
2101 if (pnote1
->start
> pnote2
->start
)
2104 /* Then by end address (bigger range first). */
2105 if (pnote1
->end
> pnote2
->end
)
2107 if (pnote1
->end
< pnote2
->end
)
2110 /* Then by attribute type. */
2111 if (pnote1
->note
.namesz
> 4
2112 && pnote2
->note
.namesz
> 4
2113 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2114 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2119 /* Merge the notes on SEC, removing redundant entries.
2120 Returns the new, smaller size of the section upon success. */
2122 static bfd_size_type
2123 merge_gnu_build_notes (bfd
* abfd
,
2126 bfd_byte
* contents
)
2128 objcopy_internal_note
* pnotes_end
;
2129 objcopy_internal_note
* pnotes
= NULL
;
2130 objcopy_internal_note
* pnote
;
2131 bfd_size_type remain
= size
;
2132 unsigned version_1_seen
= 0;
2133 unsigned version_2_seen
= 0;
2134 unsigned version_3_seen
= 0;
2135 const char * err
= NULL
;
2136 bfd_byte
* in
= contents
;
2137 unsigned long previous_func_start
= 0;
2138 unsigned long previous_open_start
= 0;
2139 unsigned long previous_func_end
= 0;
2140 unsigned long previous_open_end
= 0;
2143 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2149 /* If there are relocs associated with this section then we
2150 cannot safely merge it. */
2151 relpp
= (arelent
**) xmalloc (relsize
);
2152 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2157 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2158 bfd_get_filename (abfd
), bfd_section_name (sec
));
2163 /* Make a copy of the notes and convert to our internal format.
2164 Minimum size of a note is 12 bytes. Also locate the version
2165 notes and check them. */
2166 pnote
= pnotes
= (objcopy_internal_note
*)
2167 xcalloc ((size
/ 12), sizeof (* pnote
));
2168 while (remain
>= 12)
2172 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2173 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2174 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2175 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2177 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2179 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2183 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2184 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2186 err
= _("corrupt GNU build attribute note: wrong note type");
2190 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2192 err
= _("corrupt GNU build attribute note: note too big");
2196 if (pnote
->note
.namesz
< 2)
2198 err
= _("corrupt GNU build attribute note: name too small");
2202 pnote
->note
.namedata
= (char *)(in
+ 12);
2203 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2205 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2206 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2208 if (pnote
->note
.namesz
> 2
2209 && pnote
->note
.namedata
[0] == '$'
2210 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2211 && pnote
->note
.namedata
[2] == '1')
2213 else if (is_version_note (pnote
))
2215 if (pnote
->note
.namedata
[4] == '2')
2217 else if (pnote
->note
.namedata
[4] == '3')
2221 err
= _("corrupt GNU build attribute note: unsupported version");
2226 switch (pnote
->note
.descsz
)
2233 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2234 /* FIXME: For version 1 and 2 notes we should try to
2235 calculate the end address by finding a symbol whose
2236 value is START, and then adding in its size.
2238 For now though, since v1 and v2 was not intended to
2239 handle gaps, we chose an artificially large end
2245 if (! is_64bit (abfd
))
2247 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2248 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2252 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2253 /* FIXME: For version 1 and 2 notes we should try to
2254 calculate the end address by finding a symbol whose
2255 value is START, and then adding in its size.
2257 For now though, since v1 and v2 was not intended to
2258 handle gaps, we chose an artificially large end
2265 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2266 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2270 err
= _("corrupt GNU build attribute note: bad description size");
2274 if (is_open_note (pnote
))
2277 previous_open_start
= start
;
2279 pnote
->start
= previous_open_start
;
2282 previous_open_end
= end
;
2284 pnote
->end
= previous_open_end
;
2289 previous_func_start
= start
;
2291 pnote
->start
= previous_func_start
;
2294 previous_func_end
= end
;
2296 pnote
->end
= previous_func_end
;
2299 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2301 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2310 /* Check that the notes are valid. */
2313 err
= _("corrupt GNU build attribute notes: excess data at end");
2317 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2320 err
= _("bad GNU build attribute notes: no known versions detected");
2323 /* This happens with glibc. No idea why. */
2324 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2325 bfd_get_filename (abfd
), bfd_section_name (sec
));
2330 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2331 || (version_1_seen
> 0 && version_3_seen
> 0)
2332 || (version_2_seen
> 0 && version_3_seen
> 0))
2334 err
= _("bad GNU build attribute notes: multiple different versions");
2338 /* We are now only supporting the merging v3+ notes
2339 - it makes things much simpler. */
2340 if (version_3_seen
== 0)
2342 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2346 merge_debug ("Merging section %s which contains %ld notes\n",
2347 sec
->name
, pnotes_end
- pnotes
);
2349 /* Sort the notes. */
2350 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2351 compare_gnu_build_notes
);
2354 merge_debug ("Results of initial sort:\n");
2355 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2356 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2357 (pnote
->note
.namedata
- (char *) contents
) - 12,
2358 pnote
->start
, pnote
->end
,
2360 pnote
->note
.namedata
[3],
2365 /* Now merge the notes. The rules are:
2366 1. If a note has a zero range, it can be eliminated.
2367 2. If two notes have the same namedata then:
2368 2a. If one note's range is fully covered by the other note
2369 then it can be deleted.
2370 2b. If one note's range partially overlaps or adjoins the
2371 other note then if they are both of the same type (open
2372 or func) then they can be merged and one deleted. If
2373 they are of different types then they cannot be merged. */
2374 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2376 /* Skip already deleted notes.
2377 FIXME: Can this happen ? We are scanning forwards and
2378 deleting backwards after all. */
2379 if (is_deleted_note (pnote
))
2382 /* Rule 1 - delete 0-range notes. */
2383 if (pnote
->start
== pnote
->end
)
2385 merge_debug ("Delete note at offset %#08lx - empty range\n",
2386 (pnote
->note
.namedata
- (char *) contents
) - 12);
2387 pnote
->note
.type
= 0;
2392 objcopy_internal_note
* back
;
2394 /* Rule 2: Check to see if there is an identical previous note. */
2395 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2397 if (is_deleted_note (back
))
2400 /* Our sorting function should have placed all identically
2401 attributed notes together, so if we see a note of a different
2402 attribute type stop searching. */
2403 if (back
->note
.namesz
!= pnote
->note
.namesz
2404 || memcmp (back
->note
.namedata
,
2405 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2408 if (back
->start
== pnote
->start
2409 && back
->end
== pnote
->end
)
2411 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2412 (pnote
->note
.namedata
- (char *) contents
) - 12,
2413 (back
->note
.namedata
- (char *) contents
) - 12);
2414 pnote
->note
.type
= 0;
2419 if (contained_by (pnote
, back
))
2421 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2422 (pnote
->note
.namedata
- (char *) contents
) - 12,
2423 (back
->note
.namedata
- (char *) contents
) - 12);
2424 pnote
->note
.type
= 0;
2429 /* This should not happen as we have sorted the
2430 notes with earlier starting addresses first. */
2431 if (contained_by (back
, pnote
))
2432 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2436 if (overlaps_or_adjoins (back
, pnote
)
2437 && is_func_note (back
) == is_func_note (pnote
))
2439 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2440 (pnote
->note
.namedata
- (char *) contents
) - 12,
2441 (back
->note
.namedata
- (char *) contents
) - 12);
2443 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2444 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2445 pnote
->note
.type
= 0;
2449 /* Don't scan too far back however. */
2452 /* FIXME: Not sure if this can ever be triggered. */
2453 merge_debug ("ITERATION LIMIT REACHED\n");
2458 if (! is_deleted_note (pnote
))
2459 merge_debug ("Unable to do anything with note at %#08lx\n",
2460 (pnote
->note
.namedata
- (char *) contents
) - 12);
2464 /* Resort the notes. */
2465 merge_debug ("Final sorting of notes\n");
2466 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2468 /* Reconstruct the ELF notes. */
2469 bfd_byte
* new_contents
;
2472 bfd_size_type new_size
;
2473 bfd_vma prev_start
= 0;
2474 bfd_vma prev_end
= 0;
2476 /* Not sure how, but the notes might grow in size.
2477 (eg see PR 1774507). Allow for this here. */
2478 new = new_contents
= xmalloc (size
* 2);
2479 for (pnote
= pnotes
, old
= contents
;
2483 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2485 if (! is_deleted_note (pnote
))
2487 /* Create the note, potentially using the
2488 address range of the previous note. */
2489 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2491 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2492 bfd_put_32 (abfd
, 0, new + 4);
2493 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2495 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2496 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2497 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2498 new += pnote
->padded_namesz
;
2502 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2503 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2504 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2506 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2507 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2508 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2509 new += pnote
->padded_namesz
;
2510 if (is_64bit (abfd
))
2512 bfd_put_64 (abfd
, pnote
->start
, new);
2513 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2518 bfd_put_32 (abfd
, pnote
->start
, new);
2519 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2523 prev_start
= pnote
->start
;
2524 prev_end
= pnote
->end
;
2532 merge_debug ("Results of merge:\n");
2533 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2534 if (! is_deleted_note (pnote
))
2535 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2536 (pnote
->note
.namedata
- (char *) contents
) - 12,
2537 pnote
->start
, pnote
->end
,
2539 pnote
->note
.namedata
[3],
2544 new_size
= new - new_contents
;
2545 if (new_size
< size
)
2547 memcpy (contents
, new_contents
, new_size
);
2550 free (new_contents
);
2555 bfd_set_error (bfd_error_bad_value
);
2556 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2564 /* Copy object file IBFD onto OBFD.
2565 Returns TRUE upon success, FALSE otherwise. */
2568 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2572 asection
**osections
= NULL
;
2574 asection
*gnu_debuglink_section
= NULL
;
2575 bfd_size_type
*gaps
= NULL
;
2576 bfd_size_type max_gap
= 0;
2579 enum bfd_architecture iarch
;
2583 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2584 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2585 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2587 /* PR 17636: Call non-fatal so that we return to our parent who
2588 may need to tidy temporary files. */
2589 non_fatal (_("Unable to change endianness of input file(s)"));
2593 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2595 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2599 if (ibfd
->sections
== NULL
)
2601 non_fatal (_("error: the input file '%s' has no sections"),
2602 bfd_get_archive_filename (ibfd
));
2606 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2608 if ((do_debug_sections
& compress
) != 0
2609 && do_debug_sections
!= compress
)
2611 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2612 bfd_get_archive_filename (ibfd
));
2616 if (do_elf_stt_common
)
2618 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2619 bfd_get_archive_filename (ibfd
));
2625 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2626 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2627 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2636 start
= bfd_get_start_address (ibfd
);
2637 start
+= change_start
;
2640 /* Neither the start address nor the flags
2641 need to be set for a core file. */
2642 if (bfd_get_format (obfd
) != bfd_core
)
2646 flags
= bfd_get_file_flags (ibfd
);
2647 flags
|= bfd_flags_to_set
;
2648 flags
&= ~bfd_flags_to_clear
;
2649 flags
&= bfd_applicable_file_flags (obfd
);
2651 if (strip_symbols
== STRIP_ALL
)
2652 flags
&= ~HAS_RELOC
;
2654 if (!bfd_set_start_address (obfd
, start
)
2655 || !bfd_set_file_flags (obfd
, flags
))
2657 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2662 /* Copy architecture of input file to output file. */
2663 iarch
= bfd_get_arch (ibfd
);
2664 imach
= bfd_get_mach (ibfd
);
2667 if (iarch
== bfd_arch_unknown
)
2669 iarch
= input_arch
->arch
;
2670 imach
= input_arch
->mach
;
2673 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2674 bfd_get_archive_filename (ibfd
));
2676 if (iarch
== bfd_arch_unknown
2677 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2678 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2680 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2684 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2685 && (ibfd
->target_defaulted
2686 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2688 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2689 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2690 bfd_get_archive_filename (ibfd
));
2692 non_fatal (_("Output file cannot represent architecture `%s'"),
2693 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2694 bfd_get_mach (ibfd
)));
2698 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2700 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2704 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2705 && bfd_pei_p (obfd
))
2707 /* Set up PE parameters. */
2708 pe_data_type
*pe
= pe_data (obfd
);
2710 /* Copy PE parameters before changing them. */
2711 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2712 && bfd_pei_p (ibfd
))
2713 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2715 if (pe_file_alignment
!= (bfd_vma
) -1)
2716 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2718 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2720 if (pe_heap_commit
!= (bfd_vma
) -1)
2721 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2723 if (pe_heap_reserve
!= (bfd_vma
) -1)
2724 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2726 if (pe_image_base
!= (bfd_vma
) -1)
2727 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2729 if (pe_section_alignment
!= (bfd_vma
) -1)
2730 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2732 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2734 if (pe_stack_commit
!= (bfd_vma
) -1)
2735 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2737 if (pe_stack_reserve
!= (bfd_vma
) -1)
2738 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2740 if (pe_subsystem
!= -1)
2741 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2743 if (pe_major_subsystem_version
!= -1)
2744 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2746 if (pe_minor_subsystem_version
!= -1)
2747 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2749 if (pe_file_alignment
> pe_section_alignment
)
2751 char file_alignment
[20], section_alignment
[20];
2753 sprintf_vma (file_alignment
, pe_file_alignment
);
2754 sprintf_vma (section_alignment
, pe_section_alignment
);
2755 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2757 file_alignment
, section_alignment
);
2764 if (osympp
!= isympp
)
2770 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2773 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2777 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2778 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2781 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2784 /* PR 17512: file: d6323821
2785 If the symbol table could not be loaded do not pretend that we have
2786 any symbols. This trips us up later on when we load the relocs. */
2790 osympp
= isympp
= NULL
;
2793 /* BFD mandates that all output sections be created and sizes set before
2794 any output is done. Thus, we traverse all sections multiple times. */
2795 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2797 if (!extract_symbol
)
2798 setup_bfd_headers (ibfd
, obfd
);
2800 if (add_sections
!= NULL
)
2802 struct section_add
*padd
;
2803 struct section_list
*pset
;
2805 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2809 pset
= find_section_list (padd
->name
, FALSE
,
2810 SECTION_CONTEXT_SET_FLAGS
);
2812 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2814 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2816 /* bfd_make_section_with_flags() does not return very helpful
2817 error codes, so check for the most likely user error first. */
2818 if (bfd_get_section_by_name (obfd
, padd
->name
))
2820 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2821 _("can't add section '%s'"), padd
->name
);
2826 /* We use LINKER_CREATED here so that the backend hooks
2827 will create any special section type information,
2828 instead of presuming we know what we're doing merely
2829 because we set the flags. */
2830 padd
->section
= bfd_make_section_with_flags
2831 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2832 if (padd
->section
== NULL
)
2834 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2835 _("can't create section `%s'"),
2841 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2843 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2847 pset
= find_section_list (padd
->name
, FALSE
,
2848 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2850 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2852 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2856 pset
= find_section_list (padd
->name
, FALSE
,
2857 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2860 padd
->section
->lma
= pset
->lma_val
;
2862 if (!bfd_set_section_alignment
2863 (padd
->section
, bfd_section_alignment (padd
->section
)))
2865 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2872 if (update_sections
!= NULL
)
2874 struct section_add
*pupdate
;
2876 for (pupdate
= update_sections
;
2878 pupdate
= pupdate
->next
)
2880 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2881 if (pupdate
->section
== NULL
)
2883 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2887 osec
= pupdate
->section
->output_section
;
2888 if (!bfd_set_section_size (osec
, pupdate
->size
))
2890 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2896 merged_note_section
* merged_note_sections
= NULL
;
2899 /* This palaver is necessary because we must set the output
2900 section size first, before its contents are ready. */
2901 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2903 if (! is_mergeable_note_section (ibfd
, osec
))
2906 /* If the section is going to be completly deleted then
2907 do not bother to merge it. */
2908 if (osec
->output_section
== NULL
)
2911 bfd_size_type size
= bfd_section_size (osec
);
2915 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2916 _("warning: note section is empty"));
2920 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2921 merged
->contents
= NULL
;
2922 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2924 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2925 _("warning: could not load note section"));
2930 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2933 /* FIXME: Once we have read the contents in, we must write
2934 them out again. So even if the mergeing has achieved
2935 nothing we still add this entry to the merge list. */
2937 if (size
!= merged
->size
2938 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2940 bfd_nonfatal_message (NULL
, obfd
, osec
,
2941 _("warning: failed to set merged notes size"));
2942 free (merged
->contents
);
2947 /* Add section to list of merged sections. */
2949 merged
->next
= merged_note_sections
;
2950 merged_note_sections
= merged
;
2954 if (dump_sections
!= NULL
)
2956 struct section_add
* pdump
;
2958 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2960 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2963 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2964 _("can't dump section '%s' - it does not exist"),
2969 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
2971 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2972 _("can't dump section - it has no contents"));
2976 bfd_size_type size
= bfd_section_size (osec
);
2979 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2980 _("can't dump section - it is empty"));
2985 f
= fopen (pdump
->filename
, FOPEN_WB
);
2988 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2989 _("could not open section dump file"));
2994 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
2996 if (fwrite (contents
, 1, size
, f
) != size
)
2998 non_fatal (_("error writing section contents to %s (error: %s)"),
3007 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3008 _("could not retrieve section contents"));
3015 if (gnu_debuglink_filename
!= NULL
)
3017 /* PR 15125: Give a helpful warning message if
3018 the debuglink section already exists, and
3019 allow the rest of the copy to complete. */
3020 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3022 non_fatal (_("%s: debuglink section already exists"),
3023 bfd_get_filename (obfd
));
3024 gnu_debuglink_filename
= NULL
;
3028 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3029 (obfd
, gnu_debuglink_filename
);
3031 if (gnu_debuglink_section
== NULL
)
3033 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3034 _("cannot create debug link section `%s'"),
3035 gnu_debuglink_filename
);
3039 /* Special processing for PE format files. We
3040 have no way to distinguish PE from COFF here. */
3041 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3043 bfd_vma debuglink_vma
;
3044 asection
* highest_section
;
3046 /* The PE spec requires that all sections be adjacent and sorted
3047 in ascending order of VMA. It also specifies that debug
3048 sections should be last. This is despite the fact that debug
3049 sections are not loaded into memory and so in theory have no
3052 This means that the debuglink section must be given a non-zero
3053 VMA which makes it contiguous with other debug sections. So
3054 walk the current section list, find the section with the
3055 highest VMA and start the debuglink section after that one. */
3056 for (osec
= obfd
->sections
, highest_section
= NULL
;
3060 && (highest_section
== NULL
3061 || osec
->vma
> highest_section
->vma
))
3062 highest_section
= osec
;
3064 if (highest_section
)
3065 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3066 + highest_section
->size
,
3067 /* FIXME: We ought to be using
3068 COFF_PAGE_SIZE here or maybe
3069 bfd_section_alignment() (if it
3070 was set) but since this is for PE
3071 and we know the required alignment
3072 it is easier just to hard code it. */
3075 /* Umm, not sure what to do in this case. */
3076 debuglink_vma
= 0x1000;
3078 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3083 c
= bfd_count_sections (obfd
);
3085 && (gap_fill_set
|| pad_to_set
))
3089 /* We must fill in gaps between the sections and/or we must pad
3090 the last section to a specified address. We do this by
3091 grabbing a list of the sections, sorting them by VMA, and
3092 increasing the section sizes as required to fill the gaps.
3093 We write out the gap contents below. */
3095 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
3097 bfd_map_over_sections (obfd
, get_sections
, &set
);
3099 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
3101 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
3102 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
3106 for (i
= 0; i
< c
- 1; i
++)
3109 bfd_size_type size
; /* Octets. */
3110 bfd_vma gap_start
, gap_stop
; /* Octets. */
3111 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3112 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3114 flags
= bfd_section_flags (osections
[i
]);
3115 if ((flags
& SEC_HAS_CONTENTS
) == 0
3116 || (flags
& SEC_LOAD
) == 0)
3119 size
= bfd_section_size (osections
[i
]);
3120 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3121 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3122 if (gap_start
< gap_stop
)
3124 if (!bfd_set_section_size (osections
[i
],
3125 size
+ (gap_stop
- gap_start
)))
3127 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3128 _("Can't fill gap after section"));
3132 gaps
[i
] = gap_stop
- gap_start
;
3133 if (max_gap
< gap_stop
- gap_start
)
3134 max_gap
= gap_stop
- gap_start
;
3141 bfd_vma lma
; /* Octets. */
3142 bfd_size_type size
; /* Octets. */
3143 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[c
- 1]);
3144 bfd_vma _pad_to
= pad_to
* opb
;
3146 lma
= bfd_section_lma (osections
[c
- 1]) * opb
;
3147 size
= bfd_section_size (osections
[c
- 1]);
3148 if (lma
+ size
< _pad_to
)
3150 if (!bfd_set_section_size (osections
[c
- 1], _pad_to
- lma
))
3152 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
3153 _("can't add padding"));
3158 gaps
[c
- 1] = _pad_to
- (lma
+ size
);
3159 if (max_gap
< _pad_to
- (lma
+ size
))
3160 max_gap
= _pad_to
- (lma
+ size
);
3166 /* Symbol filtering must happen after the output sections
3167 have been created, but before their contents are set. */
3169 if (convert_debugging
)
3170 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3172 if (strip_symbols
== STRIP_DEBUG
3173 || strip_symbols
== STRIP_ALL
3174 || strip_symbols
== STRIP_UNNEEDED
3175 || strip_symbols
== STRIP_NONDEBUG
3176 || strip_symbols
== STRIP_DWO
3177 || strip_symbols
== STRIP_NONDWO
3178 || discard_locals
!= LOCALS_UNDEF
3180 || htab_elements (strip_specific_htab
) != 0
3181 || htab_elements (keep_specific_htab
) != 0
3182 || htab_elements (localize_specific_htab
) != 0
3183 || htab_elements (globalize_specific_htab
) != 0
3184 || htab_elements (keepglobal_specific_htab
) != 0
3185 || htab_elements (weaken_specific_htab
) != 0
3186 || htab_elements (redefine_specific_htab
) != 0
3187 || prefix_symbols_string
3190 || convert_debugging
3191 || change_leading_char
3192 || remove_leading_char
3193 || section_rename_list
3197 /* Mark symbols used in output relocations so that they
3198 are kept, even if they are local labels or static symbols.
3200 Note we iterate over the input sections examining their
3201 relocations since the relocations for the output sections
3202 haven't been set yet. mark_symbols_used_in_relocations will
3203 ignore input sections which have no corresponding output
3205 if (strip_symbols
!= STRIP_ALL
)
3207 bfd_set_error (bfd_error_no_error
);
3208 bfd_map_over_sections (ibfd
,
3209 mark_symbols_used_in_relocations
,
3211 if (bfd_get_error () != bfd_error_no_error
)
3218 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3219 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3222 if (convert_debugging
&& dhandle
!= NULL
)
3226 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3229 dhandle
= NULL
; /* Paranoia... */
3238 bfd_set_symtab (obfd
, osympp
, symcount
);
3240 /* This has to happen before section positions are set. */
3241 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3243 /* This has to happen after the symbol table has been set. */
3244 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3246 if (add_sections
!= NULL
)
3248 struct section_add
*padd
;
3250 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3252 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3255 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3261 if (update_sections
!= NULL
)
3263 struct section_add
*pupdate
;
3265 for (pupdate
= update_sections
;
3267 pupdate
= pupdate
->next
)
3269 osec
= pupdate
->section
->output_section
;
3270 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3273 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3279 if (merged_note_sections
!= NULL
)
3281 merged_note_section
* merged
= NULL
;
3283 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3285 if (! is_mergeable_note_section (obfd
, osec
))
3289 merged
= merged_note_sections
;
3291 /* It is likely that output sections are in the same order
3292 as the input sections, but do not assume that this is
3294 if (strcmp (bfd_section_name (merged
->sec
),
3295 bfd_section_name (osec
)) != 0)
3297 for (merged
= merged_note_sections
;
3299 merged
= merged
->next
)
3300 if (strcmp (bfd_section_name (merged
->sec
),
3301 bfd_section_name (osec
)) == 0)
3306 bfd_nonfatal_message
3308 _("error: failed to locate merged notes"));
3313 if (merged
->contents
== NULL
)
3315 bfd_nonfatal_message
3317 _("error: failed to merge notes"));
3321 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3324 bfd_nonfatal_message
3326 _("error: failed to copy merged notes into output"));
3330 merged
= merged
->next
;
3333 /* Free the memory. */
3334 merged_note_section
* next
;
3335 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3337 next
= merged
->next
;
3338 free (merged
->contents
);
3342 else if (merge_notes
&& ! is_strip
)
3343 non_fatal (_("%s: Could not find any mergeable note sections"),
3344 bfd_get_filename (ibfd
));
3346 if (gnu_debuglink_filename
!= NULL
)
3348 if (! bfd_fill_in_gnu_debuglink_section
3349 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3351 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3352 _("cannot fill debug link section `%s'"),
3353 gnu_debuglink_filename
);
3358 if (gap_fill_set
|| pad_to_set
)
3362 /* Fill in the gaps. */
3365 buf
= (bfd_byte
*) xmalloc (max_gap
);
3366 memset (buf
, gap_fill
, max_gap
);
3368 c
= bfd_count_sections (obfd
);
3369 for (i
= 0; i
< c
; i
++)
3377 off
= bfd_section_size (osections
[i
]) - left
;
3388 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3391 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3407 /* Allow the BFD backend to copy any private data it understands
3408 from the input BFD to the output BFD. This is done last to
3409 permit the routine to look at the filtered symbol table, which is
3410 important for the ECOFF code at least. */
3411 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3413 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3414 _("error copying private BFD data"));
3418 /* Switch to the alternate machine code. We have to do this at the
3419 very end, because we only initialize the header when we create
3420 the first section. */
3421 if (use_alt_mach_code
!= 0)
3423 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3425 non_fatal (_("this target does not support %lu alternative machine codes"),
3427 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3429 non_fatal (_("treating that number as an absolute e_machine value instead"));
3430 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3433 non_fatal (_("ignoring the alternative value"));
3440 /* Read each archive element in turn from IBFD, copy the
3441 contents to temp file, and keep the temp file handle.
3442 If 'force_output_target' is TRUE then make sure that
3443 all elements in the new archive are of the type
3447 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3448 bfd_boolean force_output_target
,
3449 const bfd_arch_info_type
*input_arch
)
3453 struct name_list
*next
;
3457 bfd
**ptr
= &obfd
->archive_head
;
3460 const char *filename
;
3462 /* PR 24281: It is not clear what should happen when copying a thin archive.
3463 One part is straight forward - if the output archive is in a different
3464 directory from the input archive then any relative paths in the library
3465 should be adjusted to the new location. But if any transformation
3466 options are active (eg strip, rename, add, etc) then the implication is
3467 that these should be applied to the files pointed to by the archive.
3468 But since objcopy is not destructive, this means that new files must be
3469 created, and there is no guidance for the names of the new files. (Plus
3470 this conflicts with one of the goals of thin libraries - only taking up
3471 a minimal amount of space in the file system).
3473 So for now we fail if an attempt is made to copy such libraries. */
3474 if (ibfd
->is_thin_archive
)
3477 bfd_set_error (bfd_error_invalid_operation
);
3478 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3479 _("sorry: copying thin archives is not currently supported"));
3483 /* Make a temp directory to hold the contents. */
3484 dir
= make_tempdir (bfd_get_filename (obfd
));
3486 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3489 if (strip_symbols
== STRIP_ALL
)
3490 obfd
->has_armap
= FALSE
;
3492 obfd
->has_armap
= ibfd
->has_armap
;
3493 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3496 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3500 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3502 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3505 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3506 goto cleanup_and_exit
;
3509 while (!status
&& this_element
!= NULL
)
3515 int stat_status
= 0;
3516 bfd_boolean del
= TRUE
;
3517 bfd_boolean ok_object
;
3519 /* PR binutils/17533: Do not allow directory traversal
3520 outside of the current directory tree by archive members. */
3521 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3523 non_fatal (_("illegal pathname found in archive member: %s"),
3524 bfd_get_filename (this_element
));
3526 goto cleanup_and_exit
;
3529 /* Create an output file for this member. */
3530 output_name
= concat (dir
, "/",
3531 bfd_get_filename (this_element
), (char *) 0);
3533 /* If the file already exists, make another temp dir. */
3534 if (stat (output_name
, &buf
) >= 0)
3536 char * tmpdir
= make_tempdir (output_name
);
3541 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3544 goto cleanup_and_exit
;
3547 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3552 output_name
= concat (tmpdir
, "/",
3553 bfd_get_filename (this_element
), (char *) 0);
3558 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3560 if (stat_status
!= 0)
3561 non_fatal (_("internal stat error on %s"),
3562 bfd_get_filename (this_element
));
3565 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3566 l
->name
= output_name
;
3571 ok_object
= bfd_check_format (this_element
, bfd_object
);
3573 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3574 _("Unable to recognise the format of file"));
3576 /* PR binutils/3110: Cope with archives
3577 containing multiple target types. */
3578 if (force_output_target
|| !ok_object
)
3579 output_bfd
= bfd_openw (output_name
, output_target
);
3581 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3583 if (output_bfd
== NULL
)
3585 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3587 goto cleanup_and_exit
;
3592 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3594 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3595 /* Try again as an unknown object file. */
3597 else if (!bfd_close (output_bfd
))
3599 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3600 /* Error in new object file. Don't change archive. */
3607 del
= !copy_unknown_object (this_element
, output_bfd
);
3608 if (!bfd_close_all_done (output_bfd
))
3610 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3611 /* Error in new object file. Don't change archive. */
3618 unlink (output_name
);
3623 if (preserve_dates
&& stat_status
== 0)
3624 set_times (output_name
, &buf
);
3626 /* Open the newly output file and attach to our list. */
3627 output_bfd
= bfd_openr (output_name
, output_target
);
3629 l
->obfd
= output_bfd
;
3632 ptr
= &output_bfd
->archive_next
;
3634 last_element
= this_element
;
3636 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3638 bfd_close (last_element
);
3643 filename
= bfd_get_filename (obfd
);
3644 if (!bfd_close (obfd
))
3647 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3650 filename
= bfd_get_filename (ibfd
);
3651 if (!bfd_close (ibfd
))
3654 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3658 /* Delete all the files that we opened. */
3660 struct name_list
* next
;
3662 for (l
= list
; l
!= NULL
; l
= next
)
3664 if (l
->obfd
== NULL
)
3668 bfd_close (l
->obfd
);
3680 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3682 /* This is only relevant to Coff targets. */
3683 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3686 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3687 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3688 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3692 /* The top-level control. */
3695 copy_file (const char *input_filename
, const char *output_filename
,
3696 const char *input_target
, const char *output_target
,
3697 const bfd_arch_info_type
*input_arch
)
3700 char **obj_matching
;
3701 char **core_matching
;
3702 off_t size
= get_file_size (input_filename
);
3707 non_fatal (_("error: the input file '%s' is empty"),
3713 /* To allow us to do "strip *" without dying on the first
3714 non-object file, failures are nonfatal. */
3715 ibfd
= bfd_openr (input_filename
, input_target
);
3718 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3723 switch (do_debug_sections
)
3727 case compress_gnu_zlib
:
3728 case compress_gabi_zlib
:
3729 ibfd
->flags
|= BFD_COMPRESS
;
3730 /* Don't check if input is ELF here since this information is
3731 only available after bfd_check_format_matches is called. */
3732 if (do_debug_sections
!= compress_gnu_zlib
)
3733 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3736 ibfd
->flags
|= BFD_DECOMPRESS
;
3742 switch (do_elf_stt_common
)
3744 case elf_stt_common
:
3745 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3748 case no_elf_stt_common
:
3749 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3755 if (bfd_check_format (ibfd
, bfd_archive
))
3757 bfd_boolean force_output_target
;
3760 /* bfd_get_target does not return the correct value until
3761 bfd_check_format succeeds. */
3762 if (output_target
== NULL
)
3764 output_target
= bfd_get_target (ibfd
);
3765 force_output_target
= FALSE
;
3768 force_output_target
= TRUE
;
3770 obfd
= bfd_openw (output_filename
, output_target
);
3773 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3778 if (gnu_debuglink_filename
!= NULL
)
3780 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3781 bfd_get_filename (ibfd
));
3782 gnu_debuglink_filename
= NULL
;
3785 /* This is a no-op on non-Coff targets. */
3786 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3788 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3790 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3795 /* bfd_get_target does not return the correct value until
3796 bfd_check_format succeeds. */
3797 if (output_target
== NULL
)
3798 output_target
= bfd_get_target (ibfd
);
3800 obfd
= bfd_openw (output_filename
, output_target
);
3803 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3807 /* This is a no-op on non-Coff targets. */
3808 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3810 if (! copy_object (ibfd
, obfd
, input_arch
))
3813 /* PR 17512: file: 0f15796a.
3814 If the file could not be copied it may not be in a writeable
3815 state. So use bfd_close_all_done to avoid the possibility of
3816 writing uninitialised data into the file. */
3817 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3820 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3824 if (!bfd_close (ibfd
))
3827 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3833 bfd_error_type obj_error
= bfd_get_error ();
3834 bfd_error_type core_error
;
3836 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3838 /* This probably can't happen.. */
3839 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3840 free (obj_matching
);
3844 core_error
= bfd_get_error ();
3845 /* Report the object error in preference to the core error. */
3846 if (obj_error
!= core_error
)
3847 bfd_set_error (obj_error
);
3849 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3851 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3853 list_matching_formats (obj_matching
);
3854 free (obj_matching
);
3856 if (core_error
== bfd_error_file_ambiguously_recognized
)
3858 list_matching_formats (core_matching
);
3859 free (core_matching
);
3866 /* Add a name to the section renaming list. */
3869 add_section_rename (const char * old_name
, const char * new_name
,
3872 section_rename
* srename
;
3874 /* Check for conflicts first. */
3875 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3876 if (strcmp (srename
->old_name
, old_name
) == 0)
3878 /* Silently ignore duplicate definitions. */
3879 if (strcmp (srename
->new_name
, new_name
) == 0
3880 && srename
->flags
== flags
)
3883 fatal (_("Multiple renames of section %s"), old_name
);
3886 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3888 srename
->old_name
= old_name
;
3889 srename
->new_name
= new_name
;
3890 srename
->flags
= flags
;
3891 srename
->next
= section_rename_list
;
3893 section_rename_list
= srename
;
3896 /* Check the section rename list for a new name of the input section
3897 called OLD_NAME. Returns the new name if one is found and sets
3898 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3901 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3903 const section_rename
*srename
;
3905 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3906 if (strcmp (srename
->old_name
, old_name
) == 0)
3908 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3909 *returned_flags
= srename
->flags
;
3911 return srename
->new_name
;
3917 /* Once each of the sections is copied, we may still need to do some
3918 finalization work for private section headers. Do that here. */
3921 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3923 /* Allow the BFD backend to copy any private data it understands
3924 from the input section to the output section. */
3925 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3928 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3929 _("error in private header data"));
3933 /* All went well. */
3937 /* Create a section in OBFD with the same
3938 name and attributes as ISECTION in IBFD. */
3941 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3943 bfd
*obfd
= (bfd
*) obfdarg
;
3944 struct section_list
*p
;
3952 char *prefix
= NULL
;
3953 bfd_boolean make_nobits
;
3954 unsigned int alignment
;
3956 if (is_strip_section (ibfd
, isection
))
3959 /* Get the, possibly new, name of the output section. */
3960 name
= bfd_section_name (isection
);
3961 flags
= bfd_section_flags (isection
);
3962 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3964 flags
&= bfd_applicable_section_flags (ibfd
);
3965 flags
&= bfd_applicable_section_flags (obfd
);
3967 name
= find_section_rename (name
, &flags
);
3969 /* Prefix sections. */
3970 if (prefix_alloc_sections_string
3971 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
3972 prefix
= prefix_alloc_sections_string
;
3973 else if (prefix_sections_string
)
3974 prefix
= prefix_sections_string
;
3980 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3986 make_nobits
= FALSE
;
3988 p
= find_section_list (bfd_section_name (isection
), FALSE
,
3989 SECTION_CONTEXT_SET_FLAGS
);
3991 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3992 else if (strip_symbols
== STRIP_NONDEBUG
3993 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3994 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3996 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3997 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4001 /* Twiddle the input section flags so that it seems to
4002 elf.c:copy_private_bfd_data that section flags have not
4003 changed between input and output sections. This hack
4004 prevents wholesale rewriting of the program headers. */
4005 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4009 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4011 if (osection
== NULL
)
4013 err
= _("failed to create output section");
4018 elf_section_type (osection
) = SHT_NOBITS
;
4020 size
= bfd_section_size (isection
);
4021 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4023 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4024 else if (extract_symbol
)
4026 if (!bfd_set_section_size (osection
, size
))
4028 err
= _("failed to set size");
4032 vma
= bfd_section_vma (isection
);
4033 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4034 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4037 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4043 vma
+= change_section_address
;
4045 if (!bfd_set_section_vma (osection
, vma
))
4047 err
= _("failed to set vma");
4051 lma
= isection
->lma
;
4052 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4053 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4056 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4062 lma
+= change_section_address
;
4064 osection
->lma
= lma
;
4066 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4067 SECTION_CONTEXT_SET_ALIGNMENT
);
4069 alignment
= p
->alignment
;
4071 alignment
= bfd_section_alignment (isection
);
4073 /* FIXME: This is probably not enough. If we change the LMA we
4074 may have to recompute the header for the file as well. */
4075 if (!bfd_set_section_alignment (osection
, alignment
))
4077 err
= _("failed to set alignment");
4081 /* Copy merge entity size. */
4082 osection
->entsize
= isection
->entsize
;
4084 /* Copy compress status. */
4085 osection
->compress_status
= isection
->compress_status
;
4087 /* This used to be mangle_section; we do here to avoid using
4088 bfd_get_section_by_name since some formats allow multiple
4089 sections with the same name. */
4090 isection
->output_section
= osection
;
4091 isection
->output_offset
= 0;
4093 if ((isection
->flags
& SEC_GROUP
) != 0)
4095 asymbol
*gsym
= group_signature (isection
);
4099 gsym
->flags
|= BSF_KEEP
;
4100 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4101 elf_group_id (isection
) = gsym
;
4105 /* Allow the BFD backend to copy any private data it understands
4106 from the input section to the output section. */
4107 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4109 err
= _("failed to copy private data");
4113 /* All went well. */
4118 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4121 /* Return TRUE if input section ISECTION should be skipped. */
4124 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4130 /* If we have already failed earlier on,
4131 do not keep on generating complaints now. */
4138 if (is_strip_section (ibfd
, isection
))
4141 if (is_update_section (ibfd
, isection
))
4144 /* When merging a note section we skip the copying of the contents,
4145 but not the copying of the relocs associated with the contents. */
4146 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4149 flags
= bfd_section_flags (isection
);
4150 if ((flags
& SEC_GROUP
) != 0)
4153 osection
= isection
->output_section
;
4154 size
= bfd_section_size (isection
);
4156 if (size
== 0 || osection
== 0)
4162 /* Add section SECTION_PATTERN to the list of sections that will have their
4163 relocations removed. */
4166 handle_remove_relocations_option (const char *section_pattern
)
4168 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4171 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4172 otherwise return FALSE. If the user has requested that relocations be
4173 removed from a section that does not have relocations then this
4174 function will still return TRUE. */
4177 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4179 return (find_section_list (bfd_section_name (isection
), FALSE
,
4180 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4183 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4184 A special case is detected here, if the user asks to remove a relocation
4185 section (one starting with ".rela" or ".rel") then this removal must
4186 be done using a different technique in a relocatable object. */
4189 handle_remove_section_option (const char *section_pattern
)
4191 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4192 if (strncmp (section_pattern
, ".rel", 4) == 0)
4194 section_pattern
+= 4;
4195 if (*section_pattern
== 'a')
4197 if (*section_pattern
)
4198 handle_remove_relocations_option (section_pattern
);
4200 sections_removed
= TRUE
;
4203 /* Copy relocations in input section ISECTION of IBFD to an output
4204 section with the same name in OBFDARG. If stripping then don't
4205 copy any relocation info. */
4208 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4210 bfd
*obfd
= (bfd
*) obfdarg
;
4216 if (skip_section (ibfd
, isection
, FALSE
))
4219 osection
= isection
->output_section
;
4221 /* Core files and DWO files do not need to be relocated. */
4222 if (bfd_get_format (obfd
) == bfd_core
4223 || strip_symbols
== STRIP_NONDWO
4224 || discard_relocations (ibfd
, isection
))
4228 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4232 /* Do not complain if the target does not support relocations. */
4233 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4238 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4246 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4247 osection
->flags
&= ~SEC_RELOC
;
4251 if (isection
->orelocation
!= NULL
)
4253 /* Some other function has already set up the output relocs
4254 for us, so scan those instead of the default relocs. */
4255 relcount
= isection
->reloc_count
;
4256 relpp
= isection
->orelocation
;
4260 relpp
= (arelent
**) xmalloc (relsize
);
4261 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4265 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4266 _("relocation count is negative"));
4271 if (strip_symbols
== STRIP_ALL
)
4273 /* Remove relocations which are not in
4274 keep_strip_specific_list. */
4275 arelent
**temp_relpp
;
4276 long temp_relcount
= 0;
4279 temp_relpp
= (arelent
**) xmalloc (relsize
);
4280 for (i
= 0; i
< relcount
; i
++)
4282 /* PR 17512: file: 9e907e0c. */
4283 if (relpp
[i
]->sym_ptr_ptr
4285 && * relpp
[i
]->sym_ptr_ptr
)
4286 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4287 keep_specific_htab
))
4288 temp_relpp
[temp_relcount
++] = relpp
[i
];
4290 relcount
= temp_relcount
;
4291 if (isection
->orelocation
== NULL
)
4296 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4299 osection
->flags
&= ~SEC_RELOC
;
4305 /* Copy the data of input section ISECTION of IBFD
4306 to an output section with the same name in OBFD. */
4309 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4311 bfd
*obfd
= (bfd
*) obfdarg
;
4312 struct section_list
*p
;
4316 if (skip_section (ibfd
, isection
, TRUE
))
4319 osection
= isection
->output_section
;
4320 /* The output SHF_COMPRESSED section size is different from input if
4321 ELF classes of input and output aren't the same. We can't use
4322 the output section size since --interleave will shrink the output
4323 section. Size will be updated if the section is converted. */
4324 size
= bfd_section_size (isection
);
4326 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4327 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4329 bfd_byte
*memhunk
= NULL
;
4331 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4332 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4336 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4343 /* We don't handle leftover bytes (too many possible behaviors,
4344 and we don't know what the user wants). The section length
4345 must be a multiple of the number of bytes to swap. */
4346 if ((size
% reverse_bytes
) == 0)
4351 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4352 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4354 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4357 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4358 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4362 /* User must pad the section up in order to do this. */
4363 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4364 bfd_section_name (isection
), reverse_bytes
);
4369 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4370 char *from
= (char *) memhunk
+ copy_byte
;
4371 char *to
= (char *) memhunk
;
4372 char *end
= (char *) memhunk
+ size
;
4375 /* If the section address is not exactly divisible by the interleave,
4376 then we must bias the from address. If the copy_byte is less than
4377 the bias, then we must skip forward one interleave, and increment
4379 int extra
= isection
->lma
% interleave
;
4381 if (copy_byte
< extra
)
4384 for (; from
< end
; from
+= interleave
)
4385 for (i
= 0; i
< copy_width
; i
++)
4387 if (&from
[i
] >= end
)
4392 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4393 osection
->lma
/= interleave
;
4394 if (copy_byte
< extra
)
4398 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4401 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4407 else if ((p
= find_section_list (bfd_section_name (isection
),
4408 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4409 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4411 void *memhunk
= xmalloc (size
);
4413 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4414 flag--they can just remove the section entirely and add it
4415 back again. However, we do permit them to turn on the
4416 SEC_HAS_CONTENTS flag, and take it to mean that the section
4417 contents should be zeroed out. */
4419 memset (memhunk
, 0, size
);
4420 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4423 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4431 /* Get all the sections. This is used when --gap-fill or --pad-to is
4435 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4437 asection
***secppp
= (asection
***) secppparg
;
4439 **secppp
= osection
;
4443 /* Sort sections by LMA. This is called via qsort, and is used when
4444 --gap-fill or --pad-to is used. We force non loadable or empty
4445 sections to the front, where they are easier to ignore. */
4448 compare_section_lma (const void *arg1
, const void *arg2
)
4450 const asection
*sec1
= *(const asection
**) arg1
;
4451 const asection
*sec2
= *(const asection
**) arg2
;
4452 flagword flags1
, flags2
;
4454 /* Sort non loadable sections to the front. */
4455 flags1
= sec1
->flags
;
4456 flags2
= sec2
->flags
;
4457 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4458 || (flags1
& SEC_LOAD
) == 0)
4460 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4461 && (flags2
& SEC_LOAD
) != 0)
4466 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4467 || (flags2
& SEC_LOAD
) == 0)
4471 /* Sort sections by LMA. */
4472 if (sec1
->lma
> sec2
->lma
)
4474 if (sec1
->lma
< sec2
->lma
)
4477 /* Sort sections with the same LMA by size. */
4478 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4480 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4483 if (sec1
->id
> sec2
->id
)
4485 if (sec1
->id
< sec2
->id
)
4490 /* Mark all the symbols which will be used in output relocations with
4491 the BSF_KEEP flag so that those symbols will not be stripped.
4493 Ignore relocations which will not appear in the output file. */
4496 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4498 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4503 /* Ignore an input section with no corresponding output section. */
4504 if (isection
->output_section
== NULL
)
4507 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4510 /* Do not complain if the target does not support relocations. */
4511 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4513 bfd_fatal (bfd_get_filename (ibfd
));
4519 relpp
= (arelent
**) xmalloc (relsize
);
4520 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4522 bfd_fatal (bfd_get_filename (ibfd
));
4524 /* Examine each symbol used in a relocation. If it's not one of the
4525 special bfd section symbols, then mark it with BSF_KEEP. */
4526 for (i
= 0; i
< relcount
; i
++)
4528 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4529 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4530 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4531 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4532 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4533 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4534 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4541 /* Write out debugging information. */
4544 write_debugging_info (bfd
*obfd
, void *dhandle
,
4545 long *symcountp ATTRIBUTE_UNUSED
,
4546 asymbol
***symppp ATTRIBUTE_UNUSED
)
4548 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4549 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4551 bfd_byte
*syms
, *strings
= NULL
;
4552 bfd_size_type symsize
, stringsize
;
4553 asection
*stabsec
, *stabstrsec
;
4556 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4561 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4562 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4563 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4565 || stabstrsec
== NULL
4566 || !bfd_set_section_size (stabsec
, symsize
)
4567 || !bfd_set_section_size (stabstrsec
, stringsize
)
4568 || !bfd_set_section_alignment (stabsec
, 2)
4569 || !bfd_set_section_alignment (stabstrsec
, 0))
4571 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4572 _("can't create debugging section"));
4577 /* We can get away with setting the section contents now because
4578 the next thing the caller is going to do is copy over the
4579 real sections. We may someday have to split the contents
4580 setting out of this function. */
4581 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4582 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4585 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4586 _("can't set debugging section contents"));
4594 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4595 _("don't know how to write debugging information for %s"),
4596 bfd_get_target (obfd
));
4600 /* If neither -D nor -U was specified explicitly,
4601 then use the configured default. */
4603 default_deterministic (void)
4605 if (deterministic
< 0)
4606 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4610 strip_main (int argc
, char *argv
[])
4612 char *input_target
= NULL
;
4613 char *output_target
= NULL
;
4614 bfd_boolean show_version
= FALSE
;
4615 bfd_boolean formats_info
= FALSE
;
4618 char *output_file
= NULL
;
4619 bfd_boolean merge_notes_set
= FALSE
;
4621 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4622 strip_options
, (int *) 0)) != EOF
)
4627 input_target
= optarg
;
4630 output_target
= optarg
;
4633 input_target
= output_target
= optarg
;
4636 handle_remove_section_option (optarg
);
4638 case OPTION_KEEP_SECTION
:
4639 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4641 case OPTION_REMOVE_RELOCS
:
4642 handle_remove_relocations_option (optarg
);
4645 strip_symbols
= STRIP_ALL
;
4649 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4650 strip_symbols
= STRIP_DEBUG
;
4652 case OPTION_STRIP_DWO
:
4653 strip_symbols
= STRIP_DWO
;
4655 case OPTION_STRIP_UNNEEDED
:
4656 strip_symbols
= STRIP_UNNEEDED
;
4659 add_specific_symbol (optarg
, keep_specific_htab
);
4663 merge_notes_set
= TRUE
;
4665 case OPTION_NO_MERGE_NOTES
:
4666 merge_notes
= FALSE
;
4667 merge_notes_set
= TRUE
;
4670 add_specific_symbol (optarg
, strip_specific_htab
);
4673 output_file
= optarg
;
4676 preserve_dates
= TRUE
;
4679 deterministic
= TRUE
;
4682 deterministic
= FALSE
;
4685 discard_locals
= LOCALS_ALL
;
4688 discard_locals
= LOCALS_START_L
;
4694 show_version
= TRUE
;
4696 case OPTION_FORMATS_INFO
:
4697 formats_info
= TRUE
;
4699 case OPTION_ONLY_KEEP_DEBUG
:
4700 strip_symbols
= STRIP_NONDEBUG
;
4702 case OPTION_KEEP_FILE_SYMBOLS
:
4703 keep_file_symbols
= 1;
4706 /* We've been given a long option. */
4713 strip_usage (stdout
, 0);
4715 strip_usage (stderr
, 1);
4719 /* If the user has not expressly chosen to merge/not-merge ELF notes
4720 then enable the merging unless we are stripping debug or dwo info. */
4721 if (! merge_notes_set
4722 && (strip_symbols
== STRIP_UNDEF
4723 || strip_symbols
== STRIP_ALL
4724 || strip_symbols
== STRIP_UNNEEDED
4725 || strip_symbols
== STRIP_NONDEBUG
4726 || strip_symbols
== STRIP_NONDWO
))
4736 print_version ("strip");
4738 default_deterministic ();
4740 /* Default is to strip all symbols. */
4741 if (strip_symbols
== STRIP_UNDEF
4742 && discard_locals
== LOCALS_UNDEF
4743 && htab_elements (strip_specific_htab
) == 0)
4744 strip_symbols
= STRIP_ALL
;
4746 if (output_target
== NULL
)
4747 output_target
= input_target
;
4751 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4752 strip_usage (stderr
, 1);
4754 for (; i
< argc
; i
++)
4756 int hold_status
= status
;
4757 struct stat statbuf
;
4760 if (get_file_size (argv
[i
]) < 1)
4767 /* No need to check the return value of stat().
4768 It has already been checked in get_file_size(). */
4769 stat (argv
[i
], &statbuf
);
4771 if (output_file
== NULL
4772 || filename_cmp (argv
[i
], output_file
) == 0)
4773 tmpname
= make_tempname (argv
[i
]);
4775 tmpname
= output_file
;
4777 if (tmpname
== NULL
)
4779 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4780 _("could not create temporary file to hold stripped copy"));
4786 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4790 set_times (tmpname
, &statbuf
);
4791 if (output_file
!= tmpname
)
4792 status
= (smart_rename (tmpname
,
4793 output_file
? output_file
: argv
[i
],
4794 preserve_dates
) != 0);
4796 status
= hold_status
;
4799 unlink_if_ordinary (tmpname
);
4800 if (output_file
!= tmpname
)
4807 /* Set up PE subsystem. */
4810 set_pe_subsystem (const char *s
)
4812 const char *version
, *subsystem
;
4822 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4823 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4824 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4825 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4826 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4827 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4828 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4829 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4830 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4831 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4837 /* Check for the presence of a version number. */
4838 version
= strchr (s
, ':');
4839 if (version
== NULL
)
4843 int len
= version
- s
;
4847 version
= copy
+ 1 + len
;
4848 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4850 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4852 non_fatal (_("%s: bad version in PE subsystem"), s
);
4855 /* Check for numeric subsystem. */
4856 value
= (short) strtol (subsystem
, ©
, 0);
4859 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4860 if (v
[i
].value
== value
)
4862 pe_subsystem
= value
;
4863 set_def
= v
[i
].set_def
;
4869 /* Search for subsystem by name. */
4870 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4871 if (strcmp (subsystem
, v
[i
].name
) == 0)
4873 pe_subsystem
= v
[i
].value
;
4874 set_def
= v
[i
].set_def
;
4882 fatal (_("unknown PE subsystem: %s"), s
);
4887 if (pe_file_alignment
== (bfd_vma
) -1)
4888 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4889 if (pe_section_alignment
== (bfd_vma
) -1)
4890 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4894 free ((char *) subsystem
);
4897 /* Convert EFI target to PEI target. */
4900 convert_efi_target (char *efi
)
4906 if (strcmp (efi
+ 4, "ia32") == 0)
4908 /* Change ia32 to i386. */
4913 else if (strcmp (efi
+ 4, "x86_64") == 0)
4915 /* Change x86_64 to x86-64. */
4920 /* Allocate and return a pointer to a struct section_add, initializing the
4921 structure using ARG, a string in the format "sectionname=filename".
4922 The returned structure will have its next pointer set to NEXT. The
4923 OPTION field is the name of the command line option currently being
4924 parsed, and is only used if an error needs to be reported. */
4926 static struct section_add
*
4927 init_section_add (const char *arg
,
4928 struct section_add
*next
,
4931 struct section_add
*pa
;
4934 s
= strchr (arg
, '=');
4936 fatal (_("bad format for %s"), option
);
4938 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4939 pa
->name
= xstrndup (arg
, s
- arg
);
4940 pa
->filename
= s
+ 1;
4942 pa
->contents
= NULL
;
4948 /* Load the file specified in PA, allocating memory to hold the file
4949 contents, and store a pointer to the allocated memory in the contents
4950 field of PA. The size field of PA is also updated. All errors call
4954 section_add_load_file (struct section_add
*pa
)
4959 /* We don't use get_file_size so that we can do
4960 --add-section .note.GNU_stack=/dev/null
4961 get_file_size doesn't work on /dev/null. */
4963 f
= fopen (pa
->filename
, FOPEN_RB
);
4965 fatal (_("cannot open: %s: %s"),
4966 pa
->filename
, strerror (errno
));
4970 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
4978 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
4981 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
4983 fatal (_("%s: fread failed"), pa
->filename
);
4994 copy_main (int argc
, char *argv
[])
4996 char *input_filename
= NULL
;
4997 char *output_filename
= NULL
;
4999 char *input_target
= NULL
;
5000 char *output_target
= NULL
;
5001 bfd_boolean show_version
= FALSE
;
5002 bfd_boolean change_warn
= TRUE
;
5003 bfd_boolean formats_info
= FALSE
;
5004 bfd_boolean use_globalize
= FALSE
;
5005 bfd_boolean use_keep_global
= FALSE
;
5007 struct stat statbuf
;
5008 const bfd_arch_info_type
*input_arch
= NULL
;
5010 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5011 copy_options
, (int *) 0)) != EOF
)
5016 copy_byte
= atoi (optarg
);
5018 fatal (_("byte number must be non-negative"));
5022 input_arch
= bfd_scan_arch (optarg
);
5023 if (input_arch
== NULL
)
5024 fatal (_("architecture %s unknown"), optarg
);
5030 interleave
= atoi (optarg
);
5032 fatal (_("interleave must be positive"));
5038 case OPTION_INTERLEAVE_WIDTH
:
5039 copy_width
= atoi (optarg
);
5041 fatal(_("interleave width must be positive"));
5045 case 's': /* "source" - 'I' is preferred */
5046 input_target
= optarg
;
5050 case 'd': /* "destination" - 'O' is preferred */
5051 output_target
= optarg
;
5055 input_target
= output_target
= optarg
;
5059 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5060 sections_copied
= TRUE
;
5064 handle_remove_section_option (optarg
);
5067 case OPTION_KEEP_SECTION
:
5068 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5071 case OPTION_REMOVE_RELOCS
:
5072 handle_remove_relocations_option (optarg
);
5076 strip_symbols
= STRIP_ALL
;
5080 strip_symbols
= STRIP_DEBUG
;
5083 case OPTION_STRIP_DWO
:
5084 strip_symbols
= STRIP_DWO
;
5087 case OPTION_STRIP_UNNEEDED
:
5088 strip_symbols
= STRIP_UNNEEDED
;
5091 case OPTION_ONLY_KEEP_DEBUG
:
5092 strip_symbols
= STRIP_NONDEBUG
;
5095 case OPTION_KEEP_FILE_SYMBOLS
:
5096 keep_file_symbols
= 1;
5099 case OPTION_ADD_GNU_DEBUGLINK
:
5100 long_section_names
= ENABLE
;
5101 gnu_debuglink_filename
= optarg
;
5105 add_specific_symbol (optarg
, keep_specific_htab
);
5111 case OPTION_NO_MERGE_NOTES
:
5112 merge_notes
= FALSE
;
5116 add_specific_symbol (optarg
, strip_specific_htab
);
5119 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5120 add_specific_symbol (optarg
, strip_unneeded_htab
);
5124 add_specific_symbol (optarg
, localize_specific_htab
);
5127 case OPTION_GLOBALIZE_SYMBOL
:
5128 use_globalize
= TRUE
;
5129 add_specific_symbol (optarg
, globalize_specific_htab
);
5133 use_keep_global
= TRUE
;
5134 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5138 add_specific_symbol (optarg
, weaken_specific_htab
);
5142 preserve_dates
= TRUE
;
5146 deterministic
= TRUE
;
5150 deterministic
= FALSE
;
5158 discard_locals
= LOCALS_ALL
;
5162 discard_locals
= LOCALS_START_L
;
5170 show_version
= TRUE
;
5173 case OPTION_FORMATS_INFO
:
5174 formats_info
= TRUE
;
5181 case OPTION_ADD_SECTION
:
5182 add_sections
= init_section_add (optarg
, add_sections
,
5184 section_add_load_file (add_sections
);
5187 case OPTION_UPDATE_SECTION
:
5188 update_sections
= init_section_add (optarg
, update_sections
,
5189 "--update-section");
5190 section_add_load_file (update_sections
);
5193 case OPTION_DUMP_SECTION
:
5194 dump_sections
= init_section_add (optarg
, dump_sections
,
5198 case OPTION_ADD_SYMBOL
:
5201 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5203 newsym
->next
= NULL
;
5204 s
= strchr (optarg
, '=');
5206 fatal (_("bad format for %s"), "--add-symbol");
5207 t
= strchr (s
+ 1, ':');
5209 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5212 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5213 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5217 newsym
->section
= NULL
;
5218 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5222 t
= strchr (t
+ 1, ',');
5223 newsym
->othersym
= NULL
;
5225 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5227 newsym
->flags
= BSF_GLOBAL
;
5229 /* Keep 'othersym' symbols at the front of the list. */
5230 if (newsym
->othersym
)
5232 newsym
->next
= add_sym_list
;
5234 add_sym_tail
= &newsym
->next
;
5235 add_sym_list
= newsym
;
5239 *add_sym_tail
= newsym
;
5240 add_sym_tail
= &newsym
->next
;
5246 case OPTION_CHANGE_START
:
5247 change_start
= parse_vma (optarg
, "--change-start");
5250 case OPTION_CHANGE_SECTION_ADDRESS
:
5251 case OPTION_CHANGE_SECTION_LMA
:
5252 case OPTION_CHANGE_SECTION_VMA
:
5254 struct section_list
* p
;
5255 unsigned int context
= 0;
5259 char *option
= NULL
;
5264 case OPTION_CHANGE_SECTION_ADDRESS
:
5265 option
= "--change-section-address";
5266 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5268 case OPTION_CHANGE_SECTION_LMA
:
5269 option
= "--change-section-lma";
5270 context
= SECTION_CONTEXT_ALTER_LMA
;
5272 case OPTION_CHANGE_SECTION_VMA
:
5273 option
= "--change-section-vma";
5274 context
= SECTION_CONTEXT_ALTER_VMA
;
5278 s
= strchr (optarg
, '=');
5281 s
= strchr (optarg
, '+');
5284 s
= strchr (optarg
, '-');
5286 fatal (_("bad format for %s"), option
);
5291 /* Correct the context. */
5294 case OPTION_CHANGE_SECTION_ADDRESS
:
5295 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5297 case OPTION_CHANGE_SECTION_LMA
:
5298 context
= SECTION_CONTEXT_SET_LMA
;
5300 case OPTION_CHANGE_SECTION_VMA
:
5301 context
= SECTION_CONTEXT_SET_VMA
;
5307 name
= (char *) xmalloc (len
+ 1);
5308 strncpy (name
, optarg
, len
);
5311 p
= find_section_list (name
, TRUE
, context
);
5313 val
= parse_vma (s
+ 1, option
);
5319 case OPTION_CHANGE_SECTION_ADDRESS
:
5323 case OPTION_CHANGE_SECTION_LMA
:
5327 case OPTION_CHANGE_SECTION_VMA
:
5334 case OPTION_CHANGE_ADDRESSES
:
5335 change_section_address
= parse_vma (optarg
, "--change-addresses");
5336 change_start
= change_section_address
;
5339 case OPTION_CHANGE_WARNINGS
:
5343 case OPTION_CHANGE_LEADING_CHAR
:
5344 change_leading_char
= TRUE
;
5347 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5350 if (strcasecmp (optarg
, "none") == 0)
5351 do_debug_sections
= decompress
;
5352 else if (strcasecmp (optarg
, "zlib") == 0)
5353 do_debug_sections
= compress_zlib
;
5354 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5355 do_debug_sections
= compress_gnu_zlib
;
5356 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5357 do_debug_sections
= compress_gabi_zlib
;
5359 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5363 do_debug_sections
= compress
;
5366 case OPTION_DEBUGGING
:
5367 convert_debugging
= TRUE
;
5370 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5371 do_debug_sections
= decompress
;
5374 case OPTION_ELF_STT_COMMON
:
5375 if (strcasecmp (optarg
, "yes") == 0)
5376 do_elf_stt_common
= elf_stt_common
;
5377 else if (strcasecmp (optarg
, "no") == 0)
5378 do_elf_stt_common
= no_elf_stt_common
;
5380 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5384 case OPTION_GAP_FILL
:
5386 bfd_vma gap_fill_vma
;
5388 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5389 gap_fill
= (bfd_byte
) gap_fill_vma
;
5390 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5394 sprintf_vma (buff
, gap_fill_vma
);
5396 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5399 gap_fill_set
= TRUE
;
5403 case OPTION_NO_CHANGE_WARNINGS
:
5404 change_warn
= FALSE
;
5408 pad_to
= parse_vma (optarg
, "--pad-to");
5412 case OPTION_REMOVE_LEADING_CHAR
:
5413 remove_leading_char
= TRUE
;
5416 case OPTION_REDEFINE_SYM
:
5418 /* Insert this redefinition onto redefine_specific_htab. */
5422 const char *nextarg
;
5423 char *source
, *target
;
5425 s
= strchr (optarg
, '=');
5427 fatal (_("bad format for %s"), "--redefine-sym");
5430 source
= (char *) xmalloc (len
+ 1);
5431 strncpy (source
, optarg
, len
);
5435 len
= strlen (nextarg
);
5436 target
= (char *) xmalloc (len
+ 1);
5437 strcpy (target
, nextarg
);
5439 add_redefine_and_check ("--redefine-sym", source
, target
);
5446 case OPTION_REDEFINE_SYMS
:
5447 add_redefine_syms_file (optarg
);
5450 case OPTION_SET_SECTION_FLAGS
:
5452 struct section_list
*p
;
5457 s
= strchr (optarg
, '=');
5459 fatal (_("bad format for %s"), "--set-section-flags");
5462 name
= (char *) xmalloc (len
+ 1);
5463 strncpy (name
, optarg
, len
);
5466 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5468 p
->flags
= parse_flags (s
+ 1);
5472 case OPTION_SET_SECTION_ALIGNMENT
:
5474 struct section_list
*p
;
5480 s
= strchr (optarg
, '=');
5482 fatal (_("bad format for --set-section-alignment: argument needed"));
5484 align
= atoi (s
+ 1);
5486 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5488 /* Convert integer alignment into a power-of-two alignment. */
5490 while ((align
& 1) == 0)
5497 /* Number has more than on 1, i.e. wasn't a power of 2. */
5498 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5500 /* Add the alignment setting to the section list. */
5502 name
= (char *) xmalloc (len
+ 1);
5503 strncpy (name
, optarg
, len
);
5506 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5508 p
->alignment
= palign
;
5512 case OPTION_RENAME_SECTION
:
5515 const char *eq
, *fl
;
5520 eq
= strchr (optarg
, '=');
5522 fatal (_("bad format for %s"), "--rename-section");
5526 fatal (_("bad format for %s"), "--rename-section");
5528 old_name
= (char *) xmalloc (len
+ 1);
5529 strncpy (old_name
, optarg
, len
);
5533 fl
= strchr (eq
, ',');
5536 flags
= parse_flags (fl
+ 1);
5546 fatal (_("bad format for %s"), "--rename-section");
5548 new_name
= (char *) xmalloc (len
+ 1);
5549 strncpy (new_name
, eq
, len
);
5552 add_section_rename (old_name
, new_name
, flags
);
5556 case OPTION_SET_START
:
5557 set_start
= parse_vma (optarg
, "--set-start");
5558 set_start_set
= TRUE
;
5561 case OPTION_SREC_LEN
:
5562 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5565 case OPTION_SREC_FORCES3
:
5566 _bfd_srec_forceS3
= TRUE
;
5569 case OPTION_STRIP_SYMBOLS
:
5570 add_specific_symbols (optarg
, strip_specific_htab
,
5571 &strip_specific_buffer
);
5574 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5575 add_specific_symbols (optarg
, strip_unneeded_htab
,
5576 &strip_unneeded_buffer
);
5579 case OPTION_KEEP_SYMBOLS
:
5580 add_specific_symbols (optarg
, keep_specific_htab
,
5581 &keep_specific_buffer
);
5584 case OPTION_LOCALIZE_HIDDEN
:
5585 localize_hidden
= TRUE
;
5588 case OPTION_LOCALIZE_SYMBOLS
:
5589 add_specific_symbols (optarg
, localize_specific_htab
,
5590 &localize_specific_buffer
);
5593 case OPTION_LONG_SECTION_NAMES
:
5594 if (!strcmp ("enable", optarg
))
5595 long_section_names
= ENABLE
;
5596 else if (!strcmp ("disable", optarg
))
5597 long_section_names
= DISABLE
;
5598 else if (!strcmp ("keep", optarg
))
5599 long_section_names
= KEEP
;
5601 fatal (_("unknown long section names option '%s'"), optarg
);
5604 case OPTION_GLOBALIZE_SYMBOLS
:
5605 use_globalize
= TRUE
;
5606 add_specific_symbols (optarg
, globalize_specific_htab
,
5607 &globalize_specific_buffer
);
5610 case OPTION_KEEPGLOBAL_SYMBOLS
:
5611 use_keep_global
= TRUE
;
5612 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5613 &keepglobal_specific_buffer
);
5616 case OPTION_WEAKEN_SYMBOLS
:
5617 add_specific_symbols (optarg
, weaken_specific_htab
,
5618 &weaken_specific_buffer
);
5621 case OPTION_ALT_MACH_CODE
:
5622 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5623 if (use_alt_mach_code
== 0)
5624 fatal (_("unable to parse alternative machine code"));
5627 case OPTION_PREFIX_SYMBOLS
:
5628 prefix_symbols_string
= optarg
;
5631 case OPTION_PREFIX_SECTIONS
:
5632 prefix_sections_string
= optarg
;
5635 case OPTION_PREFIX_ALLOC_SECTIONS
:
5636 prefix_alloc_sections_string
= optarg
;
5639 case OPTION_READONLY_TEXT
:
5640 bfd_flags_to_set
|= WP_TEXT
;
5641 bfd_flags_to_clear
&= ~WP_TEXT
;
5644 case OPTION_WRITABLE_TEXT
:
5645 bfd_flags_to_clear
|= WP_TEXT
;
5646 bfd_flags_to_set
&= ~WP_TEXT
;
5650 bfd_flags_to_set
|= D_PAGED
;
5651 bfd_flags_to_clear
&= ~D_PAGED
;
5655 bfd_flags_to_clear
|= D_PAGED
;
5656 bfd_flags_to_set
&= ~D_PAGED
;
5659 case OPTION_EXTRACT_DWO
:
5660 strip_symbols
= STRIP_NONDWO
;
5663 case OPTION_EXTRACT_SYMBOL
:
5664 extract_symbol
= TRUE
;
5667 case OPTION_REVERSE_BYTES
:
5669 int prev
= reverse_bytes
;
5671 reverse_bytes
= atoi (optarg
);
5672 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5673 fatal (_("number of bytes to reverse must be positive and even"));
5675 if (prev
&& prev
!= reverse_bytes
)
5676 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5681 case OPTION_FILE_ALIGNMENT
:
5682 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5688 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5690 || (*end
!= '.' && *end
!= '\0'))
5691 non_fatal (_("%s: invalid reserve value for --heap"),
5693 else if (*end
!= '\0')
5695 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5697 non_fatal (_("%s: invalid commit value for --heap"),
5703 case OPTION_IMAGE_BASE
:
5704 pe_image_base
= parse_vma (optarg
, "--image-base");
5707 case OPTION_PE_SECTION_ALIGNMENT
:
5708 pe_section_alignment
= parse_vma (optarg
,
5709 "--section-alignment");
5712 case OPTION_SUBSYSTEM
:
5713 set_pe_subsystem (optarg
);
5719 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5721 || (*end
!= '.' && *end
!= '\0'))
5722 non_fatal (_("%s: invalid reserve value for --stack"),
5724 else if (*end
!= '\0')
5726 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5728 non_fatal (_("%s: invalid commit value for --stack"),
5734 case OPTION_VERILOG_DATA_WIDTH
:
5735 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5736 if (VerilogDataWidth
< 1)
5737 fatal (_("verilog data width must be at least 1 byte"));
5741 /* We've been given a long option. */
5746 copy_usage (stdout
, 0);
5749 copy_usage (stderr
, 1);
5753 if (use_globalize
&& use_keep_global
)
5754 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5763 print_version ("objcopy");
5765 if (interleave
&& copy_byte
== -1)
5766 fatal (_("interleave start byte must be set with --byte"));
5768 if (copy_byte
>= interleave
)
5769 fatal (_("byte number must be less than interleave"));
5771 if (copy_width
> interleave
- copy_byte
)
5772 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5774 if (optind
== argc
|| optind
+ 2 < argc
)
5775 copy_usage (stderr
, 1);
5777 input_filename
= argv
[optind
];
5778 if (optind
+ 1 < argc
)
5779 output_filename
= argv
[optind
+ 1];
5781 default_deterministic ();
5783 /* Default is to strip no symbols. */
5784 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5785 strip_symbols
= STRIP_NONE
;
5787 if (output_target
== NULL
)
5788 output_target
= input_target
;
5790 /* Convert input EFI target to PEI target. */
5791 if (input_target
!= NULL
5792 && strncmp (input_target
, "efi-", 4) == 0)
5796 efi
= xstrdup (output_target
+ 4);
5797 if (strncmp (efi
, "bsdrv-", 6) == 0
5798 || strncmp (efi
, "rtdrv-", 6) == 0)
5800 else if (strncmp (efi
, "app-", 4) != 0)
5801 fatal (_("unknown input EFI target: %s"), input_target
);
5804 convert_efi_target (efi
);
5807 /* Convert output EFI target to PEI target. */
5808 if (output_target
!= NULL
5809 && strncmp (output_target
, "efi-", 4) == 0)
5813 efi
= xstrdup (output_target
+ 4);
5814 if (strncmp (efi
, "app-", 4) == 0)
5816 if (pe_subsystem
== -1)
5817 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5819 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5821 if (pe_subsystem
== -1)
5822 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5825 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5827 if (pe_subsystem
== -1)
5828 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5832 fatal (_("unknown output EFI target: %s"), output_target
);
5834 if (pe_file_alignment
== (bfd_vma
) -1)
5835 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5836 if (pe_section_alignment
== (bfd_vma
) -1)
5837 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5839 output_target
= efi
;
5840 convert_efi_target (efi
);
5844 if (stat (input_filename
, & statbuf
) < 0)
5845 fatal (_("warning: could not locate '%s'. System error message: %s"),
5846 input_filename
, strerror (errno
));
5848 /* If there is no destination file, or the source and destination files
5849 are the same, then create a temp and rename the result into the input. */
5850 if (output_filename
== NULL
5851 || filename_cmp (input_filename
, output_filename
) == 0)
5852 tmpname
= make_tempname (input_filename
);
5854 tmpname
= output_filename
;
5856 if (tmpname
== NULL
)
5857 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5858 input_filename
, strerror (errno
));
5860 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5864 set_times (tmpname
, &statbuf
);
5865 if (tmpname
!= output_filename
)
5866 status
= (smart_rename (tmpname
, input_filename
,
5867 preserve_dates
) != 0);
5870 unlink_if_ordinary (tmpname
);
5872 if (tmpname
!= output_filename
)
5877 struct section_list
*p
;
5879 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5883 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5887 sprintf_vma (buff
, p
->vma_val
);
5889 /* xgettext:c-format */
5890 non_fatal (_("%s %s%c0x%s never used"),
5891 "--change-section-vma",
5893 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5897 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5901 sprintf_vma (buff
, p
->lma_val
);
5903 /* xgettext:c-format */
5904 non_fatal (_("%s %s%c0x%s never used"),
5905 "--change-section-lma",
5907 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5914 if (strip_specific_buffer
)
5915 free (strip_specific_buffer
);
5917 if (strip_unneeded_buffer
)
5918 free (strip_unneeded_buffer
);
5920 if (keep_specific_buffer
)
5921 free (keep_specific_buffer
);
5923 if (localize_specific_buffer
)
5924 free (globalize_specific_buffer
);
5926 if (globalize_specific_buffer
)
5927 free (globalize_specific_buffer
);
5929 if (keepglobal_specific_buffer
)
5930 free (keepglobal_specific_buffer
);
5932 if (weaken_specific_buffer
)
5933 free (weaken_specific_buffer
);
5939 main (int argc
, char *argv
[])
5941 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5942 setlocale (LC_MESSAGES
, "");
5944 #if defined (HAVE_SETLOCALE)
5945 setlocale (LC_CTYPE
, "");
5947 bindtextdomain (PACKAGE
, LOCALEDIR
);
5948 textdomain (PACKAGE
);
5950 program_name
= argv
[0];
5951 xmalloc_set_program_name (program_name
);
5953 START_PROGRESS (program_name
, 0);
5955 expandargv (&argc
, &argv
);
5957 strip_symbols
= STRIP_UNDEF
;
5958 discard_locals
= LOCALS_UNDEF
;
5960 if (bfd_init () != BFD_INIT_MAGIC
)
5961 fatal (_("fatal error: libbfd ABI mismatch"));
5962 set_default_bfd_target ();
5966 int i
= strlen (program_name
);
5967 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5968 /* Drop the .exe suffix, if any. */
5969 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
5972 program_name
[i
] = '\0';
5975 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
5978 create_symbol_htabs ();
5981 bfd_set_error_program_name (argv
[0]);
5984 strip_main (argc
, argv
);
5986 copy_main (argc
, argv
);
5988 END_PROGRESS (program_name
);