1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2020 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "libiberty.h"
28 #include "filenames.h"
31 #include "coff/internal.h"
33 #include "safe-ctype.h"
35 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
36 header in generic PE code. */
37 #include "coff/i386.h"
40 static bfd_vma pe_file_alignment
= (bfd_vma
) -1;
41 static bfd_vma pe_heap_commit
= (bfd_vma
) -1;
42 static bfd_vma pe_heap_reserve
= (bfd_vma
) -1;
43 static bfd_vma pe_image_base
= (bfd_vma
) -1;
44 static bfd_vma pe_section_alignment
= (bfd_vma
) -1;
45 static bfd_vma pe_stack_commit
= (bfd_vma
) -1;
46 static bfd_vma pe_stack_reserve
= (bfd_vma
) -1;
47 static short pe_subsystem
= -1;
48 static short pe_major_subsystem_version
= -1;
49 static short pe_minor_subsystem_version
= -1;
51 struct is_specified_symbol_predicate_data
57 /* A node includes symbol name mapping to support redefine_sym. */
66 struct addsym_node
*next
;
71 const char * othersym
;
74 typedef struct section_rename
76 const char * old_name
;
77 const char * new_name
;
79 struct section_rename
* next
;
83 /* List of sections to be renamed. */
84 static section_rename
*section_rename_list
;
86 static asymbol
**isympp
= NULL
; /* Input symbols. */
87 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
89 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
90 static int copy_byte
= -1;
91 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
92 static int copy_width
= 1;
94 static bfd_boolean verbose
; /* Print file and target names. */
95 static bfd_boolean preserve_dates
; /* Preserve input file timestamp. */
96 static int deterministic
= -1; /* Enable deterministic archives. */
97 static int status
= 0; /* Exit status. */
99 static bfd_boolean merge_notes
= FALSE
; /* Merge note sections. */
101 typedef struct merged_note_section
103 asection
* sec
; /* The section that is being merged. */
104 bfd_byte
* contents
;/* New contents of the section. */
105 bfd_size_type size
; /* New size of the section. */
106 struct merged_note_section
* next
; /* Link to next merged note section. */
107 } merged_note_section
;
112 STRIP_NONE
, /* Don't strip. */
113 STRIP_DEBUG
, /* Strip all debugger symbols. */
114 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
115 STRIP_NONDEBUG
, /* Strip everything but debug info. */
116 STRIP_DWO
, /* Strip all DWO info. */
117 STRIP_NONDWO
, /* Strip everything but DWO info. */
118 STRIP_ALL
/* Strip all symbols. */
121 /* Which symbols to remove. */
122 static enum strip_action strip_symbols
= STRIP_UNDEF
;
127 LOCALS_START_L
, /* Discard locals starting with L. */
128 LOCALS_ALL
/* Discard all locals. */
131 /* Which local symbols to remove. Overrides STRIP_ALL. */
132 static enum locals_action discard_locals
;
134 /* Structure used to hold lists of sections and actions to take. */
137 struct section_list
* next
; /* Next section to change. */
138 const char * pattern
; /* Section name pattern. */
139 bfd_boolean used
; /* Whether this entry was used. */
141 unsigned int context
; /* What to do with matching sections. */
142 /* Flag bits used in the context field.
143 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
144 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
145 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
146 #define SECTION_CONTEXT_KEEP (1 << 2) /* Keep this section. */
147 #define SECTION_CONTEXT_SET_VMA (1 << 3) /* Set the sections' VMA address. */
148 #define SECTION_CONTEXT_ALTER_VMA (1 << 4) /* Increment or decrement the section's VMA address. */
149 #define SECTION_CONTEXT_SET_LMA (1 << 5) /* Set the sections' LMA address. */
150 #define SECTION_CONTEXT_ALTER_LMA (1 << 6) /* Increment or decrement the section's LMA address. */
151 #define SECTION_CONTEXT_SET_FLAGS (1 << 7) /* Set the section's flags. */
152 #define SECTION_CONTEXT_REMOVE_RELOCS (1 << 8) /* Remove relocations for this section. */
153 #define SECTION_CONTEXT_SET_ALIGNMENT (1 << 9) /* Set alignment for section. */
155 bfd_vma vma_val
; /* Amount to change by or set to. */
156 bfd_vma lma_val
; /* Amount to change by or set to. */
157 flagword flags
; /* What to set the section flags to. */
158 unsigned int alignment
; /* Alignment of output section. */
161 static struct section_list
*change_sections
;
163 /* TRUE if some sections are to be removed. */
164 static bfd_boolean sections_removed
;
166 /* TRUE if only some sections are to be copied. */
167 static bfd_boolean sections_copied
;
169 /* Changes to the start address. */
170 static bfd_vma change_start
= 0;
171 static bfd_boolean set_start_set
= FALSE
;
172 static bfd_vma set_start
;
174 /* Changes to section addresses. */
175 static bfd_vma change_section_address
= 0;
177 /* Filling gaps between sections. */
178 static bfd_boolean gap_fill_set
= FALSE
;
179 static bfd_byte gap_fill
= 0;
181 /* Pad to a given address. */
182 static bfd_boolean pad_to_set
= FALSE
;
183 static bfd_vma pad_to
;
185 /* Use alternative machine code? */
186 static unsigned long use_alt_mach_code
= 0;
188 /* Output BFD flags user wants to set or clear */
189 static flagword bfd_flags_to_set
;
190 static flagword bfd_flags_to_clear
;
192 /* List of sections to add. */
195 /* Next section to add. */
196 struct section_add
*next
;
197 /* Name of section to add. */
199 /* Name of file holding section contents. */
200 const char *filename
;
203 /* Contents of file. */
205 /* BFD section, after it has been added. */
209 /* List of sections to add to the output BFD. */
210 static struct section_add
*add_sections
;
212 /* List of sections to update in the output BFD. */
213 static struct section_add
*update_sections
;
215 /* List of sections to dump from the output BFD. */
216 static struct section_add
*dump_sections
;
218 /* If non-NULL the argument to --add-gnu-debuglink.
219 This should be the filename to store in the .gnu_debuglink section. */
220 static const char * gnu_debuglink_filename
= NULL
;
222 /* Whether to convert debugging information. */
223 static bfd_boolean convert_debugging
= FALSE
;
225 /* Whether to compress/decompress DWARF debug sections. */
230 compress_zlib
= compress
| 1 << 1,
231 compress_gnu_zlib
= compress
| 1 << 2,
232 compress_gabi_zlib
= compress
| 1 << 3,
234 } do_debug_sections
= nothing
;
236 /* Whether to generate ELF common symbols with the STT_COMMON type. */
237 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
239 /* Whether to change the leading character in symbol names. */
240 static bfd_boolean change_leading_char
= FALSE
;
242 /* Whether to remove the leading character from global symbol names. */
243 static bfd_boolean remove_leading_char
= FALSE
;
245 /* Whether to permit wildcard in symbol comparison. */
246 static bfd_boolean wildcard
= FALSE
;
248 /* True if --localize-hidden is in effect. */
249 static bfd_boolean localize_hidden
= FALSE
;
251 /* List of symbols to strip, keep, localize, keep-global, weaken,
253 static htab_t strip_specific_htab
= NULL
;
254 static htab_t strip_unneeded_htab
= NULL
;
255 static htab_t keep_specific_htab
= NULL
;
256 static htab_t localize_specific_htab
= NULL
;
257 static htab_t globalize_specific_htab
= NULL
;
258 static htab_t keepglobal_specific_htab
= NULL
;
259 static htab_t weaken_specific_htab
= NULL
;
260 static htab_t redefine_specific_htab
= NULL
;
261 static htab_t redefine_specific_reverse_htab
= NULL
;
262 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
263 static int add_symbols
= 0;
265 static char *strip_specific_buffer
= NULL
;
266 static char *strip_unneeded_buffer
= NULL
;
267 static char *keep_specific_buffer
= NULL
;
268 static char *localize_specific_buffer
= NULL
;
269 static char *globalize_specific_buffer
= NULL
;
270 static char *keepglobal_specific_buffer
= NULL
;
271 static char *weaken_specific_buffer
= NULL
;
273 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
274 static bfd_boolean weaken
= FALSE
;
276 /* If this is TRUE, we retain BSF_FILE symbols. */
277 static bfd_boolean keep_file_symbols
= FALSE
;
279 /* Prefix symbols/sections. */
280 static char *prefix_symbols_string
= 0;
281 static char *prefix_sections_string
= 0;
282 static char *prefix_alloc_sections_string
= 0;
284 /* True if --extract-symbol was passed on the command line. */
285 static bfd_boolean extract_symbol
= FALSE
;
287 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
288 of <reverse_bytes> bytes within each output section. */
289 static int reverse_bytes
= 0;
291 /* For Coff objects, we may want to allow or disallow long section names,
292 or preserve them where found in the inputs. Debug info relies on them. */
293 enum long_section_name_handling
300 /* The default long section handling mode is to preserve them.
301 This is also the only behaviour for 'strip'. */
302 static enum long_section_name_handling long_section_names
= KEEP
;
304 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
305 enum command_line_switch
307 OPTION_ADD_SECTION
=150,
308 OPTION_ADD_GNU_DEBUGLINK
,
310 OPTION_ALT_MACH_CODE
,
311 OPTION_CHANGE_ADDRESSES
,
312 OPTION_CHANGE_LEADING_CHAR
,
313 OPTION_CHANGE_SECTION_ADDRESS
,
314 OPTION_CHANGE_SECTION_LMA
,
315 OPTION_CHANGE_SECTION_VMA
,
317 OPTION_CHANGE_WARNINGS
,
318 OPTION_COMPRESS_DEBUG_SECTIONS
,
320 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
322 OPTION_ELF_STT_COMMON
,
324 OPTION_EXTRACT_SYMBOL
,
325 OPTION_FILE_ALIGNMENT
,
328 OPTION_GLOBALIZE_SYMBOL
,
329 OPTION_GLOBALIZE_SYMBOLS
,
333 OPTION_INTERLEAVE_WIDTH
,
334 OPTION_KEEPGLOBAL_SYMBOLS
,
335 OPTION_KEEP_FILE_SYMBOLS
,
338 OPTION_LOCALIZE_HIDDEN
,
339 OPTION_LOCALIZE_SYMBOLS
,
340 OPTION_LONG_SECTION_NAMES
,
342 OPTION_NO_MERGE_NOTES
,
343 OPTION_NO_CHANGE_WARNINGS
,
344 OPTION_ONLY_KEEP_DEBUG
,
346 OPTION_PREFIX_ALLOC_SECTIONS
,
347 OPTION_PREFIX_SECTIONS
,
348 OPTION_PREFIX_SYMBOLS
,
350 OPTION_READONLY_TEXT
,
352 OPTION_REDEFINE_SYMS
,
353 OPTION_REMOVE_LEADING_CHAR
,
354 OPTION_REMOVE_RELOCS
,
355 OPTION_RENAME_SECTION
,
356 OPTION_REVERSE_BYTES
,
357 OPTION_PE_SECTION_ALIGNMENT
,
358 OPTION_SET_SECTION_FLAGS
,
359 OPTION_SET_SECTION_ALIGNMENT
,
365 OPTION_STRIP_SYMBOLS
,
366 OPTION_STRIP_UNNEEDED
,
367 OPTION_STRIP_UNNEEDED_SYMBOL
,
368 OPTION_STRIP_UNNEEDED_SYMBOLS
,
370 OPTION_UPDATE_SECTION
,
371 OPTION_VERILOG_DATA_WIDTH
,
373 OPTION_WEAKEN_SYMBOLS
,
377 /* Options to handle if running as "strip". */
379 static struct option strip_options
[] =
381 {"disable-deterministic-archives", no_argument
, 0, 'U'},
382 {"discard-all", no_argument
, 0, 'x'},
383 {"discard-locals", no_argument
, 0, 'X'},
384 {"enable-deterministic-archives", no_argument
, 0, 'D'},
385 {"format", required_argument
, 0, 'F'}, /* Obsolete */
386 {"help", no_argument
, 0, 'h'},
387 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
388 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
389 {"input-target", required_argument
, 0, 'I'},
390 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
391 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
392 {"keep-symbol", required_argument
, 0, 'K'},
393 {"merge-notes", no_argument
, 0, 'M'},
394 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
395 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
396 {"output-file", required_argument
, 0, 'o'},
397 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
398 {"output-target", required_argument
, 0, 'O'},
399 {"preserve-dates", no_argument
, 0, 'p'},
400 {"remove-section", required_argument
, 0, 'R'},
401 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
402 {"strip-all", no_argument
, 0, 's'},
403 {"strip-debug", no_argument
, 0, 'S'},
404 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
405 {"strip-symbol", required_argument
, 0, 'N'},
406 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
407 {"target", required_argument
, 0, 'F'},
408 {"verbose", no_argument
, 0, 'v'},
409 {"version", no_argument
, 0, 'V'},
410 {"wildcard", no_argument
, 0, 'w'},
411 {0, no_argument
, 0, 0}
414 /* Options to handle if running as "objcopy". */
416 static struct option copy_options
[] =
418 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
419 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
420 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
421 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
422 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
423 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
424 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
425 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
426 {"binary-architecture", required_argument
, 0, 'B'},
427 {"byte", required_argument
, 0, 'b'},
428 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
429 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
430 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
431 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
432 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
433 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
434 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
435 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
436 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
437 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
438 {"disable-deterministic-archives", no_argument
, 0, 'U'},
439 {"discard-all", no_argument
, 0, 'x'},
440 {"discard-locals", no_argument
, 0, 'X'},
441 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
442 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
443 {"enable-deterministic-archives", no_argument
, 0, 'D'},
444 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
445 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
446 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
447 {"format", required_argument
, 0, 'F'}, /* Obsolete */
448 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
449 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
450 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
451 {"heap", required_argument
, 0, OPTION_HEAP
},
452 {"help", no_argument
, 0, 'h'},
453 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
454 {"impure", no_argument
, 0, OPTION_IMPURE
},
455 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
456 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
457 {"input-target", required_argument
, 0, 'I'},
458 {"interleave", optional_argument
, 0, 'i'},
459 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
460 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
461 {"keep-global-symbol", required_argument
, 0, 'G'},
462 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
463 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
464 {"keep-symbol", required_argument
, 0, 'K'},
465 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
466 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
467 {"localize-symbol", required_argument
, 0, 'L'},
468 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
469 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
470 {"merge-notes", no_argument
, 0, 'M'},
471 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
472 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
473 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
474 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
475 {"only-section", required_argument
, 0, 'j'},
476 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
477 {"output-target", required_argument
, 0, 'O'},
478 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
479 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
480 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
481 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
482 {"preserve-dates", no_argument
, 0, 'p'},
483 {"pure", no_argument
, 0, OPTION_PURE
},
484 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
485 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
486 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
487 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
488 {"remove-section", required_argument
, 0, 'R'},
489 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
490 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
491 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
492 {"section-alignment", required_argument
, 0, OPTION_PE_SECTION_ALIGNMENT
},
493 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
494 {"set-section-alignment", required_argument
, 0, OPTION_SET_SECTION_ALIGNMENT
},
495 {"set-start", required_argument
, 0, OPTION_SET_START
},
496 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
497 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
498 {"stack", required_argument
, 0, OPTION_STACK
},
499 {"strip-all", no_argument
, 0, 'S'},
500 {"strip-debug", no_argument
, 0, 'g'},
501 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
502 {"strip-symbol", required_argument
, 0, 'N'},
503 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
504 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
505 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
506 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
507 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
508 {"target", required_argument
, 0, 'F'},
509 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
510 {"verbose", no_argument
, 0, 'v'},
511 {"verilog-data-width", required_argument
, 0, OPTION_VERILOG_DATA_WIDTH
},
512 {"version", no_argument
, 0, 'V'},
513 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
514 {"weaken-symbol", required_argument
, 0, 'W'},
515 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
516 {"wildcard", no_argument
, 0, 'w'},
517 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
518 {0, no_argument
, 0, 0}
522 extern char *program_name
;
524 /* This flag distinguishes between strip and objcopy:
525 1 means this is 'strip'; 0 means this is 'objcopy'.
526 -1 means if we should use argv[0] to decide. */
529 /* The maximum length of an S record. This variable is defined in srec.c
530 and can be modified by the --srec-len parameter. */
531 extern unsigned int _bfd_srec_len
;
533 /* Restrict the generation of Srecords to type S3 only.
534 This variable is defined in bfd/srec.c and can be toggled
535 on by the --srec-forceS3 command line switch. */
536 extern bfd_boolean _bfd_srec_forceS3
;
538 /* Width of data in bytes for verilog output.
539 This variable is declared in bfd/verilog.c and can be modified by
540 the --verilog-data-width parameter. */
541 extern unsigned int VerilogDataWidth
;
543 /* Forward declarations. */
544 static void setup_section (bfd
*, asection
*, void *);
545 static void setup_bfd_headers (bfd
*, bfd
*);
546 static void copy_relocations_in_section (bfd
*, asection
*, void *);
547 static void copy_section (bfd
*, asection
*, void *);
548 static void get_sections (bfd
*, asection
*, void *);
549 static int compare_section_lma (const void *, const void *);
550 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
551 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
552 static const char *lookup_sym_redefinition (const char *);
553 static const char *find_section_rename (const char *, flagword
*);
555 ATTRIBUTE_NORETURN
static void
556 copy_usage (FILE *stream
, int exit_status
)
558 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
559 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
560 fprintf (stream
, _(" The options are:\n"));
561 fprintf (stream
, _("\
562 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
563 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
564 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
565 -F --target <bfdname> Set both input and output format to <bfdname>\n\
566 --debugging Convert debugging information, if possible\n\
567 -p --preserve-dates Copy modified/access timestamps to the output\n"));
568 if (DEFAULT_AR_DETERMINISTIC
)
569 fprintf (stream
, _("\
570 -D --enable-deterministic-archives\n\
571 Produce deterministic output when stripping archives (default)\n\
572 -U --disable-deterministic-archives\n\
573 Disable -D behavior\n"));
575 fprintf (stream
, _("\
576 -D --enable-deterministic-archives\n\
577 Produce deterministic output when stripping archives\n\
578 -U --disable-deterministic-archives\n\
579 Disable -D behavior (default)\n"));
580 fprintf (stream
, _("\
581 -j --only-section <name> Only copy section <name> into the output\n\
582 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
583 -R --remove-section <name> Remove section <name> from the output\n\
584 --remove-relocations <name> Remove relocations from section <name>\n\
585 -S --strip-all Remove all symbol and relocation information\n\
586 -g --strip-debug Remove all debugging symbols & sections\n\
587 --strip-dwo Remove all DWO sections\n\
588 --strip-unneeded Remove all symbols not needed by relocations\n\
589 -N --strip-symbol <name> Do not copy symbol <name>\n\
590 --strip-unneeded-symbol <name>\n\
591 Do not copy symbol <name> unless needed by\n\
593 --only-keep-debug Strip everything but the debug information\n\
594 --extract-dwo Copy only DWO sections\n\
595 --extract-symbol Remove section contents but keep symbols\n\
596 --keep-section <name> Do not strip section <name>\n\
597 -K --keep-symbol <name> Do not strip symbol <name>\n\
598 --keep-file-symbols Do not strip file symbol(s)\n\
599 --localize-hidden Turn all ELF hidden symbols into locals\n\
600 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
601 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
602 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
603 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
604 --weaken Force all global symbols to be marked as weak\n\
605 -w --wildcard Permit wildcard in symbol comparison\n\
606 -x --discard-all Remove all non-global symbols\n\
607 -X --discard-locals Remove any compiler-generated symbols\n\
608 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
609 --interleave-width <number> Set N for --interleave\n\
610 -b --byte <num> Select byte <num> in every interleaved block\n\
611 --gap-fill <val> Fill gaps between sections with <val>\n\
612 --pad-to <addr> Pad the last section up to address <addr>\n\
613 --set-start <addr> Set the start address to <addr>\n\
614 {--change-start|--adjust-start} <incr>\n\
615 Add <incr> to the start address\n\
616 {--change-addresses|--adjust-vma} <incr>\n\
617 Add <incr> to LMA, VMA and start addresses\n\
618 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
619 Change LMA and VMA of section <name> by <val>\n\
620 --change-section-lma <name>{=|+|-}<val>\n\
621 Change the LMA of section <name> by <val>\n\
622 --change-section-vma <name>{=|+|-}<val>\n\
623 Change the VMA of section <name> by <val>\n\
624 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
625 Warn if a named section does not exist\n\
626 --set-section-flags <name>=<flags>\n\
627 Set section <name>'s properties to <flags>\n\
628 --set-section-alignment <name>=<align>\n\
629 Set section <name>'s alignment to <align> bytes\n\
630 --add-section <name>=<file> Add section <name> found in <file> to output\n\
631 --update-section <name>=<file>\n\
632 Update contents of section <name> with\n\
633 contents found in <file>\n\
634 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
635 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
636 --long-section-names {enable|disable|keep}\n\
637 Handle long section names in Coff objects.\n\
638 --change-leading-char Force output format's leading character style\n\
639 --remove-leading-char Remove leading character from global symbols\n\
640 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
641 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
642 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
644 --srec-len <number> Restrict the length of generated Srecords\n\
645 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
646 --strip-symbols <file> -N for all symbols listed in <file>\n\
647 --strip-unneeded-symbols <file>\n\
648 --strip-unneeded-symbol for all symbols listed\n\
650 --keep-symbols <file> -K for all symbols listed in <file>\n\
651 --localize-symbols <file> -L for all symbols listed in <file>\n\
652 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
653 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
654 --weaken-symbols <file> -W for all symbols listed in <file>\n\
655 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
656 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
657 --writable-text Mark the output text as writable\n\
658 --readonly-text Make the output text write protected\n\
659 --pure Mark the output file as demand paged\n\
660 --impure Mark the output file as impure\n\
661 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
662 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
663 --prefix-alloc-sections <prefix>\n\
664 Add <prefix> to start of every allocatable\n\
666 --file-alignment <num> Set PE file alignment to <num>\n\
667 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
669 --image-base <address> Set PE image base to <address>\n\
670 --section-alignment <num> Set PE section alignment to <num>\n\
671 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
673 --subsystem <name>[:<version>]\n\
674 Set PE subsystem to <name> [& <version>]\n\
675 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
676 Compress DWARF debug sections using zlib\n\
677 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
678 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
680 --verilog-data-width <number> Specifies data width, in bytes, for verilog output\n\
681 -M --merge-notes Remove redundant entries in note sections\n\
682 --no-merge-notes Do not attempt to remove redundant notes (default)\n\
683 -v --verbose List all object files modified\n\
684 @<file> Read options from <file>\n\
685 -V --version Display this program's version number\n\
686 -h --help Display this output\n\
687 --info List object formats & architectures supported\n\
689 list_supported_targets (program_name
, stream
);
690 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
691 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
695 ATTRIBUTE_NORETURN
static void
696 strip_usage (FILE *stream
, int exit_status
)
698 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
699 fprintf (stream
, _(" Removes symbols and sections from files\n"));
700 fprintf (stream
, _(" The options are:\n"));
701 fprintf (stream
, _("\
702 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
703 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
704 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
705 -p --preserve-dates Copy modified/access timestamps to the output\n\
707 if (DEFAULT_AR_DETERMINISTIC
)
708 fprintf (stream
, _("\
709 -D --enable-deterministic-archives\n\
710 Produce deterministic output when stripping archives (default)\n\
711 -U --disable-deterministic-archives\n\
712 Disable -D behavior\n"));
714 fprintf (stream
, _("\
715 -D --enable-deterministic-archives\n\
716 Produce deterministic output when stripping archives\n\
717 -U --disable-deterministic-archives\n\
718 Disable -D behavior (default)\n"));
719 fprintf (stream
, _("\
720 -R --remove-section=<name> Also remove section <name> from the output\n\
721 --remove-relocations <name> Remove relocations from section <name>\n\
722 -s --strip-all Remove all symbol and relocation information\n\
723 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
724 --strip-dwo Remove all DWO sections\n\
725 --strip-unneeded Remove all symbols not needed by relocations\n\
726 --only-keep-debug Strip everything but the debug information\n\
727 -M --merge-notes Remove redundant entries in note sections (default)\n\
728 --no-merge-notes Do not attempt to remove redundant notes\n\
729 -N --strip-symbol=<name> Do not copy symbol <name>\n\
730 --keep-section=<name> Do not strip section <name>\n\
731 -K --keep-symbol=<name> Do not strip symbol <name>\n\
732 --keep-file-symbols Do not strip file symbol(s)\n\
733 -w --wildcard Permit wildcard in symbol comparison\n\
734 -x --discard-all Remove all non-global symbols\n\
735 -X --discard-locals Remove any compiler-generated symbols\n\
736 -v --verbose List all object files modified\n\
737 -V --version Display this program's version number\n\
738 -h --help Display this output\n\
739 --info List object formats & architectures supported\n\
740 -o <file> Place stripped output into <file>\n\
743 list_supported_targets (program_name
, stream
);
744 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
745 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
749 /* Parse section flags into a flagword, with a fatal error if the
750 string can't be parsed. */
753 parse_flags (const char *s
)
763 snext
= strchr (s
, ',');
773 #define PARSE_FLAG(fname,fval) \
774 else if (strncasecmp (fname, s, len) == 0) ret |= fval
775 PARSE_FLAG ("alloc", SEC_ALLOC
);
776 PARSE_FLAG ("load", SEC_LOAD
);
777 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
778 PARSE_FLAG ("readonly", SEC_READONLY
);
779 PARSE_FLAG ("debug", SEC_DEBUGGING
);
780 PARSE_FLAG ("code", SEC_CODE
);
781 PARSE_FLAG ("data", SEC_DATA
);
782 PARSE_FLAG ("rom", SEC_ROM
);
783 PARSE_FLAG ("exclude", SEC_EXCLUDE
);
784 PARSE_FLAG ("share", SEC_COFF_SHARED
);
785 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
786 PARSE_FLAG ("merge", SEC_MERGE
);
787 PARSE_FLAG ("strings", SEC_STRINGS
);
793 copy
= (char *) xmalloc (len
+ 1);
794 strncpy (copy
, s
, len
);
796 non_fatal (_("unrecognized section flag `%s'"), copy
);
797 fatal (_("supported flags: %s"),
798 "alloc, load, noload, readonly, debug, code, data, rom, exclude, share, contents, merge, strings");
808 /* Parse symbol flags into a flagword, with a fatal error if the
809 string can't be parsed. */
812 parse_symflags (const char *s
, const char **other
)
822 snext
= strchr (s
, ',');
831 #define PARSE_FLAG(fname, fval) \
832 else if (len == sizeof fname - 1 \
833 && strncasecmp (fname, s, len) == 0) \
836 #define PARSE_OTHER(fname, fval) \
837 else if (len >= sizeof fname \
838 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
839 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
842 PARSE_FLAG ("local", BSF_LOCAL
);
843 PARSE_FLAG ("global", BSF_GLOBAL
);
844 PARSE_FLAG ("export", BSF_EXPORT
);
845 PARSE_FLAG ("debug", BSF_DEBUGGING
);
846 PARSE_FLAG ("function", BSF_FUNCTION
);
847 PARSE_FLAG ("weak", BSF_WEAK
);
848 PARSE_FLAG ("section", BSF_SECTION_SYM
);
849 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
850 PARSE_FLAG ("warning", BSF_WARNING
);
851 PARSE_FLAG ("indirect", BSF_INDIRECT
);
852 PARSE_FLAG ("file", BSF_FILE
);
853 PARSE_FLAG ("object", BSF_OBJECT
);
854 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
855 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
856 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
857 PARSE_OTHER ("before=", *other
);
865 copy
= (char *) xmalloc (len
+ 1);
866 strncpy (copy
, s
, len
);
868 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
869 fatal (_("supported flags: %s"),
870 "local, global, export, debug, function, weak, section, "
871 "constructor, warning, indirect, file, object, synthetic, "
872 "indirect-function, unique-object, before=<othersym>");
882 /* Find and optionally add an entry in the change_sections list.
884 We need to be careful in how we match section names because of the support
885 for wildcard characters. For example suppose that the user has invoked
888 --set-section-flags .debug_*=debug
889 --set-section-flags .debug_str=readonly,debug
890 --change-section-address .debug_*ranges=0x1000
892 With the idea that all debug sections will receive the DEBUG flag, the
893 .debug_str section will also receive the READONLY flag and the
894 .debug_ranges and .debug_aranges sections will have their address set to
895 0x1000. (This may not make much sense, but it is just an example).
897 When adding the section name patterns to the section list we need to make
898 sure that previous entries do not match with the new entry, unless the
899 match is exact. (In which case we assume that the user is overriding
900 the previous entry with the new context).
902 When matching real section names to the section list we make use of the
903 wildcard characters, but we must do so in context. Eg if we are setting
904 section addresses then we match for .debug_ranges but not for .debug_info.
906 Finally, if ADD is false and we do find a match, we mark the section list
909 static struct section_list
*
910 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
912 struct section_list
*p
, *match
= NULL
;
914 /* assert ((context & ((1 << 7) - 1)) != 0); */
916 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
920 if (strcmp (p
->pattern
, name
) == 0)
922 /* Check for context conflicts. */
923 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
924 && (context
& SECTION_CONTEXT_COPY
))
925 || ((context
& SECTION_CONTEXT_REMOVE
)
926 && (p
->context
& SECTION_CONTEXT_COPY
)))
927 fatal (_("error: %s both copied and removed"), name
);
929 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
930 && (context
& SECTION_CONTEXT_ALTER_VMA
))
931 || ((context
& SECTION_CONTEXT_SET_VMA
)
932 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
933 fatal (_("error: %s both sets and alters VMA"), name
);
935 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
936 && (context
& SECTION_CONTEXT_ALTER_LMA
))
937 || ((context
& SECTION_CONTEXT_SET_LMA
)
938 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
939 fatal (_("error: %s both sets and alters LMA"), name
);
941 /* Extend the context. */
942 p
->context
|= context
;
946 /* If we are not adding a new name/pattern then
947 only check for a match if the context applies. */
948 else if (p
->context
& context
)
950 /* We could check for the presence of wildchar characters
951 first and choose between calling strcmp and fnmatch,
952 but is that really worth it ? */
953 if (p
->pattern
[0] == '!')
955 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
963 if (fnmatch (p
->pattern
, name
, 0) == 0)
979 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
982 p
->context
= context
;
987 p
->next
= change_sections
;
993 /* S1 is the entry node already in the table, S2 is the key node. */
996 eq_string_redefnode (const void *s1
, const void *s2
)
998 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
999 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
1000 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
1003 /* P is redefine node. Hash value is generated from its "source" filed. */
1006 htab_hash_redefnode (const void *p
)
1008 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
1009 return htab_hash_string (redefnode
->source
);
1012 /* Create hashtab used for redefine node. */
1015 create_symbol2redef_htab (void)
1017 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
1021 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
1024 eq_string (const void *s1
, const void *s2
)
1026 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
1030 create_symbol_htab (void)
1032 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
1036 create_symbol_htabs (void)
1038 strip_specific_htab
= create_symbol_htab ();
1039 strip_unneeded_htab
= create_symbol_htab ();
1040 keep_specific_htab
= create_symbol_htab ();
1041 localize_specific_htab
= create_symbol_htab ();
1042 globalize_specific_htab
= create_symbol_htab ();
1043 keepglobal_specific_htab
= create_symbol_htab ();
1044 weaken_specific_htab
= create_symbol_htab ();
1045 redefine_specific_htab
= create_symbol2redef_htab ();
1046 /* As there is no bidirectional hash table in libiberty, need a reverse table
1047 to check duplicated target string. */
1048 redefine_specific_reverse_htab
= create_symbol_htab ();
1051 /* Add a symbol to strip_specific_list. */
1054 add_specific_symbol (const char *name
, htab_t htab
)
1056 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1059 /* Like add_specific_symbol, but the element type is void *. */
1062 add_specific_symbol_node (const void *node
, htab_t htab
)
1064 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1067 /* Add symbols listed in `filename' to strip_specific_list. */
1069 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1070 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1073 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1079 unsigned int line_count
;
1081 size
= get_file_size (filename
);
1088 buffer
= (char *) xmalloc (size
+ 2);
1089 f
= fopen (filename
, FOPEN_RT
);
1091 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1093 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1094 fatal (_("%s: fread failed"), filename
);
1097 buffer
[size
] = '\n';
1098 buffer
[size
+ 1] = '\0';
1102 for (line
= buffer
; * line
!= '\0'; line
++)
1107 int finished
= FALSE
;
1109 for (eol
= line
;; eol
++)
1115 /* Cope with \n\r. */
1123 /* Cope with \r\n. */
1134 /* Line comment, Terminate the line here, in case a
1135 name is present and then allow the rest of the
1136 loop to find the real end of the line. */
1148 /* A name may now exist somewhere between 'line' and 'eol'.
1149 Strip off leading whitespace and trailing whitespace,
1150 then add it to the list. */
1151 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1153 for (name_end
= name
;
1154 (! IS_WHITESPACE (* name_end
))
1155 && (! IS_LINE_TERMINATOR (* name_end
));
1159 if (! IS_LINE_TERMINATOR (* name_end
))
1163 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1166 if (! IS_LINE_TERMINATOR (* extra
))
1167 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1168 filename
, line_count
);
1173 if (name_end
> name
)
1174 add_specific_symbol (name
, htab
);
1176 /* Advance line pointer to end of line. The 'eol ++' in the for
1177 loop above will then advance us to the start of the next line. */
1182 /* Do not free the buffer. Parts of it will have been referenced
1183 in the calls to add_specific_symbol. */
1187 /* See whether a symbol should be stripped or kept
1188 based on strip_specific_list and keep_symbols. */
1191 is_specified_symbol_predicate (void **slot
, void *data
)
1193 struct is_specified_symbol_predicate_data
*d
=
1194 (struct is_specified_symbol_predicate_data
*) data
;
1195 const char *slot_name
= (char *) *slot
;
1197 if (*slot_name
!= '!')
1199 if (! fnmatch (slot_name
, d
->name
, 0))
1202 /* Continue traversal, there might be a non-match rule. */
1208 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1211 /* Stop traversal. */
1216 /* Continue traversal. */
1221 is_specified_symbol (const char *name
, htab_t htab
)
1225 struct is_specified_symbol_predicate_data data
;
1230 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1235 return htab_find (htab
, name
) != NULL
;
1238 /* Return a pointer to the symbol used as a signature for GROUP. */
1241 group_signature (asection
*group
)
1243 bfd
*abfd
= group
->owner
;
1244 Elf_Internal_Shdr
*ghdr
;
1246 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1250 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1253 ghdr
= &elf_section_data (group
)->this_hdr
;
1254 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1256 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1257 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1259 if (ghdr
->sh_info
> 0
1260 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1261 return isympp
[ghdr
->sh_info
- 1];
1266 /* Return TRUE if the section is a DWO section. */
1269 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1271 const char *name
= bfd_section_name (sec
);
1272 int len
= strlen (name
);
1274 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1277 /* Return TRUE if section SEC is in the update list. */
1280 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1282 if (update_sections
!= NULL
)
1284 struct section_add
*pupdate
;
1286 for (pupdate
= update_sections
;
1288 pupdate
= pupdate
->next
)
1290 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1299 is_mergeable_note_section (bfd
* abfd
, asection
* sec
)
1302 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1303 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1304 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1305 We should add support for more note types. */
1306 && ((elf_section_data (sec
)->this_hdr
.sh_flags
& SHF_GNU_BUILD_NOTE
) != 0
1307 /* Old versions of GAS (prior to 2.27) could not set the section
1308 flags to OS-specific values, so we also accept sections that
1309 start with the expected name. */
1310 || (CONST_STRNEQ (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
))))
1316 /* See if a non-group section is being removed. */
1319 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1321 if (find_section_list (bfd_section_name (sec
), FALSE
, SECTION_CONTEXT_KEEP
)
1325 if (sections_removed
|| sections_copied
)
1327 struct section_list
*p
;
1328 struct section_list
*q
;
1330 p
= find_section_list (bfd_section_name (sec
), FALSE
,
1331 SECTION_CONTEXT_REMOVE
);
1332 q
= find_section_list (bfd_section_name (sec
), FALSE
,
1333 SECTION_CONTEXT_COPY
);
1336 fatal (_("error: section %s matches both remove and copy options"),
1337 bfd_section_name (sec
));
1338 if (p
&& is_update_section (abfd
, sec
))
1339 fatal (_("error: section %s matches both update and remove options"),
1340 bfd_section_name (sec
));
1344 if (sections_copied
&& q
== NULL
)
1348 if ((bfd_section_flags (sec
) & SEC_DEBUGGING
) != 0)
1350 if (strip_symbols
== STRIP_DEBUG
1351 || strip_symbols
== STRIP_UNNEEDED
1352 || strip_symbols
== STRIP_ALL
1353 || discard_locals
== LOCALS_ALL
1354 || convert_debugging
)
1356 /* By default we don't want to strip .reloc section.
1357 This section has for pe-coff special meaning. See
1358 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1359 if (strcmp (bfd_section_name (sec
), ".reloc") != 0)
1363 if (strip_symbols
== STRIP_DWO
)
1364 return is_dwo_section (abfd
, sec
);
1366 if (strip_symbols
== STRIP_NONDEBUG
)
1370 if (strip_symbols
== STRIP_NONDWO
)
1371 return !is_dwo_section (abfd
, sec
);
1376 /* See if a section is being removed. */
1379 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1381 if (is_strip_section_1 (abfd
, sec
))
1384 if ((bfd_section_flags (sec
) & SEC_GROUP
) != 0)
1388 asection
*elt
, *first
;
1390 gsym
= group_signature (sec
);
1391 /* Strip groups without a valid signature. */
1396 If we are going to strip the group signature symbol, then
1397 strip the group section too. */
1399 if ((strip_symbols
== STRIP_ALL
1400 && !is_specified_symbol (gname
, keep_specific_htab
))
1401 || is_specified_symbol (gname
, strip_specific_htab
))
1404 /* Remove the group section if all members are removed. */
1405 first
= elt
= elf_next_in_group (sec
);
1408 if (!is_strip_section_1 (abfd
, elt
))
1410 elt
= elf_next_in_group (elt
);
1422 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1424 /* Always keep ELF note sections. */
1425 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
1426 return elf_section_type (isection
) == SHT_NOTE
;
1428 /* Always keep the .buildid section for PE/COFF.
1430 Strictly, this should be written "always keep the section storing the debug
1431 directory", but that may be the .text section for objects produced by some
1432 tools, which it is not sensible to keep. */
1433 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
)
1434 return strcmp (bfd_section_name (isection
), ".buildid") == 0;
1439 /* Return true if SYM is a hidden symbol. */
1442 is_hidden_symbol (asymbol
*sym
)
1444 elf_symbol_type
*elf_sym
;
1446 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1447 if (elf_sym
!= NULL
)
1448 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1457 /* Empty name is hopefully never a valid symbol name. */
1458 static const char * empty_name
= "";
1461 need_sym_before (struct addsym_node
**node
, const char *sym
)
1464 struct addsym_node
*ptr
= add_sym_list
;
1466 /* 'othersym' symbols are at the front of the list. */
1467 for (count
= 0; count
< add_symbols
; count
++)
1471 if (ptr
->othersym
== empty_name
)
1473 else if (strcmp (ptr
->othersym
, sym
) == 0)
1475 free ((char *) ptr
->othersym
);
1476 ptr
->othersym
= empty_name
;
1486 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1488 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1490 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1491 sym
->value
= ptr
->symval
;
1492 sym
->flags
= ptr
->flags
;
1495 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1497 fatal (_("Section %s not found"), ptr
->section
);
1501 sym
->section
= bfd_abs_section_ptr
;
1505 /* Choose which symbol entries to copy; put the result in OSYMS.
1506 We don't copy in place, because that confuses the relocs.
1507 Return the number of symbols to print. */
1510 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1511 asymbol
**isyms
, long symcount
)
1513 asymbol
**from
= isyms
, **to
= osyms
;
1514 long src_count
= 0, dst_count
= 0;
1515 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1517 for (; src_count
< symcount
; src_count
++)
1519 asymbol
*sym
= from
[src_count
];
1520 flagword flags
= sym
->flags
;
1521 char *name
= (char *) bfd_asymbol_name (sym
);
1523 bfd_boolean used_in_reloc
= FALSE
;
1524 bfd_boolean undefined
;
1525 bfd_boolean rem_leading_char
;
1526 bfd_boolean add_leading_char
;
1528 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1532 struct addsym_node
*ptr
;
1534 if (need_sym_before (&ptr
, name
))
1535 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1538 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1542 new_name
= (char *) lookup_sym_redefinition (name
);
1543 if (new_name
== name
1544 && (flags
& BSF_SECTION_SYM
) != 0)
1545 new_name
= (char *) find_section_rename (name
, NULL
);
1546 bfd_set_asymbol_name (sym
, new_name
);
1550 /* Check if we will remove the current leading character. */
1553 && name
[0] == bfd_get_symbol_leading_char (abfd
)
1554 && (change_leading_char
1555 || (remove_leading_char
1556 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1558 || bfd_is_com_section (bfd_asymbol_section (sym
))))));
1560 /* Check if we will add a new leading character. */
1563 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1564 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1565 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1567 /* Short circuit for change_leading_char if we can do it in-place. */
1568 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1570 name
[0] = bfd_get_symbol_leading_char (obfd
);
1571 bfd_set_asymbol_name (sym
, name
);
1572 rem_leading_char
= FALSE
;
1573 add_leading_char
= FALSE
;
1576 /* Remove leading char. */
1577 if (rem_leading_char
)
1578 bfd_set_asymbol_name (sym
, ++name
);
1580 /* Add new leading char and/or prefix. */
1581 if (add_leading_char
|| prefix_symbols_string
)
1584 size_t len
= strlen (name
) + 1;
1586 if (add_leading_char
)
1588 if (prefix_symbols_string
)
1589 len
+= strlen (prefix_symbols_string
);
1591 ptr
= n
= (char *) xmalloc (len
);
1592 if (add_leading_char
)
1593 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1595 if (prefix_symbols_string
)
1597 strcpy (ptr
, prefix_symbols_string
);
1598 ptr
+= strlen (prefix_symbols_string
);
1602 bfd_set_asymbol_name (sym
, n
);
1606 if (strip_symbols
== STRIP_ALL
)
1608 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1609 || ((flags
& BSF_SECTION_SYM
) != 0
1610 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1614 used_in_reloc
= TRUE
;
1616 else if (relocatable
/* Relocatable file. */
1617 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1618 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1620 else if (bfd_decode_symclass (sym
) == 'I')
1621 /* Global symbols in $idata sections need to be retained
1622 even if relocatable is FALSE. External users of the
1623 library containing the $idata section may reference these
1626 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1627 || (flags
& BSF_WEAK
) != 0
1629 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1630 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1631 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1632 keep
= (strip_symbols
!= STRIP_DEBUG
1633 && strip_symbols
!= STRIP_UNNEEDED
1634 && ! convert_debugging
);
1635 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1636 /* COMDAT sections store special information in local
1637 symbols, so we cannot risk stripping any of them. */
1639 else /* Local symbol. */
1640 keep
= (strip_symbols
!= STRIP_UNNEEDED
1641 && (discard_locals
!= LOCALS_ALL
1642 && (discard_locals
!= LOCALS_START_L
1643 || ! bfd_is_local_label (abfd
, sym
))));
1645 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1647 /* There are multiple ways to set 'keep' above, but if it
1648 was the relocatable symbol case, then that's an error. */
1651 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1659 && !(flags
& BSF_KEEP
)
1660 && is_specified_symbol (name
, strip_unneeded_htab
))
1664 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1665 || is_specified_symbol (name
, keep_specific_htab
)))
1668 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1673 if ((flags
& BSF_GLOBAL
) != 0
1674 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1676 sym
->flags
&= ~ BSF_GLOBAL
;
1677 sym
->flags
|= BSF_WEAK
;
1681 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1682 && (is_specified_symbol (name
, localize_specific_htab
)
1683 || (htab_elements (keepglobal_specific_htab
) != 0
1684 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1685 || (localize_hidden
&& is_hidden_symbol (sym
))))
1687 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1688 sym
->flags
|= BSF_LOCAL
;
1692 && (flags
& BSF_LOCAL
)
1693 && is_specified_symbol (name
, globalize_specific_htab
))
1695 sym
->flags
&= ~ BSF_LOCAL
;
1696 sym
->flags
|= BSF_GLOBAL
;
1699 to
[dst_count
++] = sym
;
1704 struct addsym_node
*ptr
= add_sym_list
;
1706 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1710 if (ptr
->othersym
!= empty_name
)
1711 fatal (_("'before=%s' not found"), ptr
->othersym
);
1714 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1720 to
[dst_count
] = NULL
;
1725 /* Find the redefined name of symbol SOURCE. */
1728 lookup_sym_redefinition (const char *source
)
1730 struct redefine_node key_node
= {(char *) source
, NULL
};
1731 struct redefine_node
*redef_node
1732 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1734 return redef_node
== NULL
? source
: redef_node
->target
;
1737 /* Insert a node into symbol redefine hash tabel. */
1740 add_redefine_and_check (const char *cause
, const char *source
,
1743 struct redefine_node
*new_node
1744 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1746 new_node
->source
= strdup (source
);
1747 new_node
->target
= strdup (target
);
1749 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1750 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1753 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1754 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1757 /* Insert the NEW_NODE into hash table for quick search. */
1758 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1760 /* Insert the target string into the reverse hash table, this is needed for
1761 duplicated target string check. */
1762 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1766 /* Handle the --redefine-syms option. Read lines containing "old new"
1767 from the file, and add them to the symbol redefine list. */
1770 add_redefine_syms_file (const char *filename
)
1779 file
= fopen (filename
, "r");
1781 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1782 filename
, strerror (errno
));
1785 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1793 /* Collect the input symbol name. */
1794 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1802 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1810 /* Eat white space between the symbol names. */
1811 while (IS_WHITESPACE (c
))
1813 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1818 /* Collect the output symbol name. */
1820 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1828 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1836 /* Eat white space at end of line. */
1837 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1842 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1843 || c
== '\n' || c
== EOF
)
1846 /* Append the redefinition to the list. */
1848 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1859 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1861 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1862 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1865 /* Eat the rest of the line and finish it. */
1866 while (c
!= '\n' && c
!= EOF
)
1872 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1878 /* Copy unknown object file IBFD onto OBFD.
1879 Returns TRUE upon success, FALSE otherwise. */
1882 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1890 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1892 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1899 non_fatal (_("stat returns negative size for `%s'"),
1900 bfd_get_archive_filename (ibfd
));
1904 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1906 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1911 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1912 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1914 cbuf
= (char *) xmalloc (BUFSIZE
);
1916 while (ncopied
< size
)
1918 tocopy
= size
- ncopied
;
1919 if (tocopy
> BUFSIZE
)
1922 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1923 != (bfd_size_type
) tocopy
)
1925 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1930 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1931 != (bfd_size_type
) tocopy
)
1933 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1941 /* We should at least to be able to read it back when copying an
1942 unknown object in an archive. */
1943 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1948 typedef struct objcopy_internal_note
1950 Elf_Internal_Note note
;
1951 unsigned long padded_namesz
;
1954 } objcopy_internal_note
;
1956 #define DEBUG_MERGE 0
1959 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1961 #define merge_debug(format, ...)
1964 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
1967 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
1968 objcopy_internal_note
* pnote2
)
1970 if (pnote1
->end
< pnote2
->start
)
1971 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1972 Really we should extract the alignment of the section
1973 covered by the notes. */
1974 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1976 if (pnote2
->end
< pnote2
->start
)
1977 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
1979 if (pnote1
->end
< pnote2
->end
)
1982 if (pnote2
->end
< pnote1
->end
)
1988 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
1991 contained_by (objcopy_internal_note
* needle
,
1992 objcopy_internal_note
* haystack
)
1994 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
1998 is_open_note (objcopy_internal_note
* pnote
)
2000 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2004 is_func_note (objcopy_internal_note
* pnote
)
2006 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2010 is_deleted_note (objcopy_internal_note
* pnote
)
2012 return pnote
->note
.type
== 0;
2016 is_version_note (objcopy_internal_note
* pnote
)
2018 return (pnote
->note
.namesz
> 4
2019 && pnote
->note
.namedata
[0] == 'G'
2020 && pnote
->note
.namedata
[1] == 'A'
2021 && pnote
->note
.namedata
[2] == '$'
2022 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2026 is_64bit (bfd
* abfd
)
2028 /* Should never happen, but let's be paranoid. */
2029 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2032 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2035 /* This sorting function is used to get the notes into an order
2036 that makes merging easy. */
2039 compare_gnu_build_notes (const void * data1
, const void * data2
)
2041 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2042 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2044 /* Sort notes based upon the attribute they record. */
2045 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2046 pnote2
->note
.namedata
+ 3,
2047 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2048 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2052 if (pnote1
->end
< pnote2
->start
)
2054 if (pnote1
->start
> pnote2
->end
)
2057 /* Overlaps - we should merge the two ranges. */
2058 if (pnote1
->start
< pnote2
->start
)
2060 if (pnote1
->end
> pnote2
->end
)
2062 if (pnote1
->end
< pnote2
->end
)
2065 /* Put OPEN notes before function notes. */
2066 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2068 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2074 /* This sorting function is used to get the notes into an order
2075 that makes eliminating address ranges easier. */
2078 sort_gnu_build_notes (const void * data1
, const void * data2
)
2080 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2081 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2083 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2085 /* Move deleted notes to the end. */
2086 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2089 /* Move OPEN notes to the start. */
2090 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2093 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2096 return 1; /* 1: F 2: O */
2099 /* Sort by starting address. */
2100 if (pnote1
->start
< pnote2
->start
)
2102 if (pnote1
->start
> pnote2
->start
)
2105 /* Then by end address (bigger range first). */
2106 if (pnote1
->end
> pnote2
->end
)
2108 if (pnote1
->end
< pnote2
->end
)
2111 /* Then by attribute type. */
2112 if (pnote1
->note
.namesz
> 4
2113 && pnote2
->note
.namesz
> 4
2114 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2115 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2120 /* Merge the notes on SEC, removing redundant entries.
2121 Returns the new, smaller size of the section upon success. */
2123 static bfd_size_type
2124 merge_gnu_build_notes (bfd
* abfd
,
2127 bfd_byte
* contents
)
2129 objcopy_internal_note
* pnotes_end
;
2130 objcopy_internal_note
* pnotes
= NULL
;
2131 objcopy_internal_note
* pnote
;
2132 bfd_size_type remain
= size
;
2133 unsigned version_1_seen
= 0;
2134 unsigned version_2_seen
= 0;
2135 unsigned version_3_seen
= 0;
2136 const char * err
= NULL
;
2137 bfd_byte
* in
= contents
;
2138 unsigned long previous_func_start
= 0;
2139 unsigned long previous_open_start
= 0;
2140 unsigned long previous_func_end
= 0;
2141 unsigned long previous_open_end
= 0;
2144 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2150 /* If there are relocs associated with this section then we
2151 cannot safely merge it. */
2152 relpp
= (arelent
**) xmalloc (relsize
);
2153 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2158 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2159 bfd_get_filename (abfd
), bfd_section_name (sec
));
2164 /* Make a copy of the notes and convert to our internal format.
2165 Minimum size of a note is 12 bytes. Also locate the version
2166 notes and check them. */
2167 pnote
= pnotes
= (objcopy_internal_note
*)
2168 xcalloc ((size
/ 12), sizeof (* pnote
));
2169 while (remain
>= 12)
2173 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2174 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2175 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2176 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2178 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2180 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2184 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2185 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2187 err
= _("corrupt GNU build attribute note: wrong note type");
2191 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2193 err
= _("corrupt GNU build attribute note: note too big");
2197 if (pnote
->note
.namesz
< 2)
2199 err
= _("corrupt GNU build attribute note: name too small");
2203 pnote
->note
.namedata
= (char *)(in
+ 12);
2204 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2206 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2207 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2209 if (pnote
->note
.namesz
> 2
2210 && pnote
->note
.namedata
[0] == '$'
2211 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2212 && pnote
->note
.namedata
[2] == '1')
2214 else if (is_version_note (pnote
))
2216 if (pnote
->note
.namedata
[4] == '2')
2218 else if (pnote
->note
.namedata
[4] == '3')
2222 err
= _("corrupt GNU build attribute note: unsupported version");
2227 switch (pnote
->note
.descsz
)
2234 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2235 /* FIXME: For version 1 and 2 notes we should try to
2236 calculate the end address by finding a symbol whose
2237 value is START, and then adding in its size.
2239 For now though, since v1 and v2 was not intended to
2240 handle gaps, we chose an artificially large end
2246 if (! is_64bit (abfd
))
2248 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2249 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2253 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2254 /* FIXME: For version 1 and 2 notes we should try to
2255 calculate the end address by finding a symbol whose
2256 value is START, and then adding in its size.
2258 For now though, since v1 and v2 was not intended to
2259 handle gaps, we chose an artificially large end
2266 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2267 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2271 err
= _("corrupt GNU build attribute note: bad description size");
2275 if (is_open_note (pnote
))
2278 previous_open_start
= start
;
2280 pnote
->start
= previous_open_start
;
2283 previous_open_end
= end
;
2285 pnote
->end
= previous_open_end
;
2290 previous_func_start
= start
;
2292 pnote
->start
= previous_func_start
;
2295 previous_func_end
= end
;
2297 pnote
->end
= previous_func_end
;
2300 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2302 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2311 /* Check that the notes are valid. */
2314 err
= _("corrupt GNU build attribute notes: excess data at end");
2318 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2321 err
= _("bad GNU build attribute notes: no known versions detected");
2324 /* This happens with glibc. No idea why. */
2325 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2326 bfd_get_filename (abfd
), bfd_section_name (sec
));
2331 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2332 || (version_1_seen
> 0 && version_3_seen
> 0)
2333 || (version_2_seen
> 0 && version_3_seen
> 0))
2335 err
= _("bad GNU build attribute notes: multiple different versions");
2339 /* We are now only supporting the merging v3+ notes
2340 - it makes things much simpler. */
2341 if (version_3_seen
== 0)
2343 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2347 merge_debug ("Merging section %s which contains %ld notes\n",
2348 sec
->name
, pnotes_end
- pnotes
);
2350 /* Sort the notes. */
2351 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2352 compare_gnu_build_notes
);
2355 merge_debug ("Results of initial sort:\n");
2356 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2357 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2358 (pnote
->note
.namedata
- (char *) contents
) - 12,
2359 pnote
->start
, pnote
->end
,
2361 pnote
->note
.namedata
[3],
2366 /* Now merge the notes. The rules are:
2367 1. If a note has a zero range, it can be eliminated.
2368 2. If two notes have the same namedata then:
2369 2a. If one note's range is fully covered by the other note
2370 then it can be deleted.
2371 2b. If one note's range partially overlaps or adjoins the
2372 other note then if they are both of the same type (open
2373 or func) then they can be merged and one deleted. If
2374 they are of different types then they cannot be merged. */
2375 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2377 /* Skip already deleted notes.
2378 FIXME: Can this happen ? We are scanning forwards and
2379 deleting backwards after all. */
2380 if (is_deleted_note (pnote
))
2383 /* Rule 1 - delete 0-range notes. */
2384 if (pnote
->start
== pnote
->end
)
2386 merge_debug ("Delete note at offset %#08lx - empty range\n",
2387 (pnote
->note
.namedata
- (char *) contents
) - 12);
2388 pnote
->note
.type
= 0;
2393 objcopy_internal_note
* back
;
2395 /* Rule 2: Check to see if there is an identical previous note. */
2396 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2398 if (is_deleted_note (back
))
2401 /* Our sorting function should have placed all identically
2402 attributed notes together, so if we see a note of a different
2403 attribute type stop searching. */
2404 if (back
->note
.namesz
!= pnote
->note
.namesz
2405 || memcmp (back
->note
.namedata
,
2406 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2409 if (back
->start
== pnote
->start
2410 && back
->end
== pnote
->end
)
2412 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2413 (pnote
->note
.namedata
- (char *) contents
) - 12,
2414 (back
->note
.namedata
- (char *) contents
) - 12);
2415 pnote
->note
.type
= 0;
2420 if (contained_by (pnote
, back
))
2422 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2423 (pnote
->note
.namedata
- (char *) contents
) - 12,
2424 (back
->note
.namedata
- (char *) contents
) - 12);
2425 pnote
->note
.type
= 0;
2430 /* This should not happen as we have sorted the
2431 notes with earlier starting addresses first. */
2432 if (contained_by (back
, pnote
))
2433 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2437 if (overlaps_or_adjoins (back
, pnote
)
2438 && is_func_note (back
) == is_func_note (pnote
))
2440 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2441 (pnote
->note
.namedata
- (char *) contents
) - 12,
2442 (back
->note
.namedata
- (char *) contents
) - 12);
2444 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2445 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2446 pnote
->note
.type
= 0;
2450 /* Don't scan too far back however. */
2453 /* FIXME: Not sure if this can ever be triggered. */
2454 merge_debug ("ITERATION LIMIT REACHED\n");
2459 if (! is_deleted_note (pnote
))
2460 merge_debug ("Unable to do anything with note at %#08lx\n",
2461 (pnote
->note
.namedata
- (char *) contents
) - 12);
2465 /* Resort the notes. */
2466 merge_debug ("Final sorting of notes\n");
2467 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2469 /* Reconstruct the ELF notes. */
2470 bfd_byte
* new_contents
;
2473 bfd_size_type new_size
;
2474 bfd_vma prev_start
= 0;
2475 bfd_vma prev_end
= 0;
2477 /* Not sure how, but the notes might grow in size.
2478 (eg see PR 1774507). Allow for this here. */
2479 new = new_contents
= xmalloc (size
* 2);
2480 for (pnote
= pnotes
, old
= contents
;
2484 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2486 if (! is_deleted_note (pnote
))
2488 /* Create the note, potentially using the
2489 address range of the previous note. */
2490 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2492 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2493 bfd_put_32 (abfd
, 0, new + 4);
2494 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2496 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2497 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2498 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2499 new += pnote
->padded_namesz
;
2503 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2504 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2505 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2507 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2508 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2509 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2510 new += pnote
->padded_namesz
;
2511 if (is_64bit (abfd
))
2513 bfd_put_64 (abfd
, pnote
->start
, new);
2514 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2519 bfd_put_32 (abfd
, pnote
->start
, new);
2520 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2524 prev_start
= pnote
->start
;
2525 prev_end
= pnote
->end
;
2533 merge_debug ("Results of merge:\n");
2534 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2535 if (! is_deleted_note (pnote
))
2536 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2537 (pnote
->note
.namedata
- (char *) contents
) - 12,
2538 pnote
->start
, pnote
->end
,
2540 pnote
->note
.namedata
[3],
2545 new_size
= new - new_contents
;
2546 if (new_size
< size
)
2548 memcpy (contents
, new_contents
, new_size
);
2551 free (new_contents
);
2556 bfd_set_error (bfd_error_bad_value
);
2557 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2566 check_new_section_flags (flagword flags
, bfd
* abfd
, const char * secname
)
2568 /* Only set the SEC_COFF_SHARED flag on COFF files.
2569 The same bit value is used by ELF targets to indicate
2570 compressed sections, and setting that flag here breaks
2572 if ((flags
& SEC_COFF_SHARED
)
2573 && bfd_get_flavour (abfd
) != bfd_target_coff_flavour
)
2575 non_fatal (_("%s[%s]: Note - dropping 'share' flag as output format is not COFF"),
2576 bfd_get_filename (abfd
), secname
);
2577 flags
&= ~ SEC_COFF_SHARED
;
2582 /* Copy object file IBFD onto OBFD.
2583 Returns TRUE upon success, FALSE otherwise. */
2586 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2590 asection
**osections
= NULL
;
2592 asection
*gnu_debuglink_section
= NULL
;
2593 bfd_size_type
*gaps
= NULL
;
2594 bfd_size_type max_gap
= 0;
2597 enum bfd_architecture iarch
;
2599 unsigned int num_sec
, i
;
2601 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2602 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2603 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2605 /* PR 17636: Call non-fatal so that we return to our parent who
2606 may need to tidy temporary files. */
2607 non_fatal (_("Unable to change endianness of input file(s)"));
2611 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2613 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2617 if (ibfd
->sections
== NULL
)
2619 non_fatal (_("error: the input file '%s' has no sections"),
2620 bfd_get_archive_filename (ibfd
));
2624 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2626 if ((do_debug_sections
& compress
) != 0
2627 && do_debug_sections
!= compress
)
2629 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2630 bfd_get_archive_filename (ibfd
));
2634 if (do_elf_stt_common
)
2636 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2637 bfd_get_archive_filename (ibfd
));
2643 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2644 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2645 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2654 start
= bfd_get_start_address (ibfd
);
2655 start
+= change_start
;
2658 /* Neither the start address nor the flags
2659 need to be set for a core file. */
2660 if (bfd_get_format (obfd
) != bfd_core
)
2664 flags
= bfd_get_file_flags (ibfd
);
2665 flags
|= bfd_flags_to_set
;
2666 flags
&= ~bfd_flags_to_clear
;
2667 flags
&= bfd_applicable_file_flags (obfd
);
2669 if (strip_symbols
== STRIP_ALL
)
2670 flags
&= ~HAS_RELOC
;
2672 if (!bfd_set_start_address (obfd
, start
)
2673 || !bfd_set_file_flags (obfd
, flags
))
2675 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2680 /* Copy architecture of input file to output file. */
2681 iarch
= bfd_get_arch (ibfd
);
2682 imach
= bfd_get_mach (ibfd
);
2685 if (iarch
== bfd_arch_unknown
)
2687 iarch
= input_arch
->arch
;
2688 imach
= input_arch
->mach
;
2691 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2692 bfd_get_archive_filename (ibfd
));
2694 if (iarch
== bfd_arch_unknown
2695 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2696 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2698 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2702 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2703 && (ibfd
->target_defaulted
2704 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2706 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2707 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2708 bfd_get_archive_filename (ibfd
));
2710 non_fatal (_("Output file cannot represent architecture `%s'"),
2711 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2712 bfd_get_mach (ibfd
)));
2716 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2718 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2722 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2723 && bfd_pei_p (obfd
))
2725 /* Set up PE parameters. */
2726 pe_data_type
*pe
= pe_data (obfd
);
2728 /* Copy PE parameters before changing them. */
2729 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2730 && bfd_pei_p (ibfd
))
2731 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2733 if (pe_file_alignment
!= (bfd_vma
) -1)
2734 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2736 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2738 if (pe_heap_commit
!= (bfd_vma
) -1)
2739 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2741 if (pe_heap_reserve
!= (bfd_vma
) -1)
2742 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2744 if (pe_image_base
!= (bfd_vma
) -1)
2745 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2747 if (pe_section_alignment
!= (bfd_vma
) -1)
2748 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2750 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2752 if (pe_stack_commit
!= (bfd_vma
) -1)
2753 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2755 if (pe_stack_reserve
!= (bfd_vma
) -1)
2756 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2758 if (pe_subsystem
!= -1)
2759 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2761 if (pe_major_subsystem_version
!= -1)
2762 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2764 if (pe_minor_subsystem_version
!= -1)
2765 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2767 if (pe_file_alignment
> pe_section_alignment
)
2769 char file_alignment
[20], section_alignment
[20];
2771 sprintf_vma (file_alignment
, pe_file_alignment
);
2772 sprintf_vma (section_alignment
, pe_section_alignment
);
2773 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2775 file_alignment
, section_alignment
);
2779 && bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2780 && bfd_pei_p (ibfd
))
2781 pe
->timestamp
= pe_data (ibfd
)->coff
.timestamp
;
2787 if (osympp
!= isympp
)
2793 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2796 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2800 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2801 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2804 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2807 /* PR 17512: file: d6323821
2808 If the symbol table could not be loaded do not pretend that we have
2809 any symbols. This trips us up later on when we load the relocs. */
2813 osympp
= isympp
= NULL
;
2816 /* BFD mandates that all output sections be created and sizes set before
2817 any output is done. Thus, we traverse all sections multiple times. */
2818 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2820 if (!extract_symbol
)
2821 setup_bfd_headers (ibfd
, obfd
);
2823 if (add_sections
!= NULL
)
2825 struct section_add
*padd
;
2826 struct section_list
*pset
;
2828 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2832 pset
= find_section_list (padd
->name
, FALSE
,
2833 SECTION_CONTEXT_SET_FLAGS
);
2836 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2837 flags
= check_new_section_flags (flags
, obfd
, padd
->name
);
2840 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2842 /* bfd_make_section_with_flags() does not return very helpful
2843 error codes, so check for the most likely user error first. */
2844 if (bfd_get_section_by_name (obfd
, padd
->name
))
2846 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2847 _("can't add section '%s'"), padd
->name
);
2852 /* We use LINKER_CREATED here so that the backend hooks
2853 will create any special section type information,
2854 instead of presuming we know what we're doing merely
2855 because we set the flags. */
2856 padd
->section
= bfd_make_section_with_flags
2857 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2858 if (padd
->section
== NULL
)
2860 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2861 _("can't create section `%s'"),
2867 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2869 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2873 pset
= find_section_list (padd
->name
, FALSE
,
2874 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2876 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2878 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2882 pset
= find_section_list (padd
->name
, FALSE
,
2883 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2886 padd
->section
->lma
= pset
->lma_val
;
2888 if (!bfd_set_section_alignment
2889 (padd
->section
, bfd_section_alignment (padd
->section
)))
2891 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2898 if (update_sections
!= NULL
)
2900 struct section_add
*pupdate
;
2902 for (pupdate
= update_sections
;
2904 pupdate
= pupdate
->next
)
2906 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2907 if (pupdate
->section
== NULL
)
2909 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2913 osec
= pupdate
->section
->output_section
;
2914 if (!bfd_set_section_size (osec
, pupdate
->size
))
2916 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2922 merged_note_section
* merged_note_sections
= NULL
;
2925 /* This palaver is necessary because we must set the output
2926 section size first, before its contents are ready. */
2927 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2929 if (! is_mergeable_note_section (ibfd
, osec
))
2932 /* If the section is going to be completly deleted then
2933 do not bother to merge it. */
2934 if (osec
->output_section
== NULL
)
2937 bfd_size_type size
= bfd_section_size (osec
);
2941 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2942 _("warning: note section is empty"));
2946 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2947 merged
->contents
= NULL
;
2948 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2950 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2951 _("warning: could not load note section"));
2956 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2959 /* FIXME: Once we have read the contents in, we must write
2960 them out again. So even if the mergeing has achieved
2961 nothing we still add this entry to the merge list. */
2963 if (size
!= merged
->size
2964 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2966 bfd_nonfatal_message (NULL
, obfd
, osec
,
2967 _("warning: failed to set merged notes size"));
2968 free (merged
->contents
);
2973 /* Add section to list of merged sections. */
2975 merged
->next
= merged_note_sections
;
2976 merged_note_sections
= merged
;
2980 if (dump_sections
!= NULL
)
2982 struct section_add
* pdump
;
2984 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2986 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2989 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2990 _("can't dump section '%s' - it does not exist"),
2995 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
2997 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2998 _("can't dump section - it has no contents"));
3002 bfd_size_type size
= bfd_section_size (osec
);
3005 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3006 _("can't dump section - it is empty"));
3011 f
= fopen (pdump
->filename
, FOPEN_WB
);
3014 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3015 _("could not open section dump file"));
3020 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3022 if (fwrite (contents
, 1, size
, f
) != size
)
3024 non_fatal (_("error writing section contents to %s (error: %s)"),
3033 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3034 _("could not retrieve section contents"));
3041 if (gnu_debuglink_filename
!= NULL
)
3043 /* PR 15125: Give a helpful warning message if
3044 the debuglink section already exists, and
3045 allow the rest of the copy to complete. */
3046 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3048 non_fatal (_("%s: debuglink section already exists"),
3049 bfd_get_filename (obfd
));
3050 gnu_debuglink_filename
= NULL
;
3054 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3055 (obfd
, gnu_debuglink_filename
);
3057 if (gnu_debuglink_section
== NULL
)
3059 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3060 _("cannot create debug link section `%s'"),
3061 gnu_debuglink_filename
);
3065 /* Special processing for PE format files. We
3066 have no way to distinguish PE from COFF here. */
3067 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3069 bfd_vma debuglink_vma
;
3070 asection
* highest_section
;
3072 /* The PE spec requires that all sections be adjacent and sorted
3073 in ascending order of VMA. It also specifies that debug
3074 sections should be last. This is despite the fact that debug
3075 sections are not loaded into memory and so in theory have no
3078 This means that the debuglink section must be given a non-zero
3079 VMA which makes it contiguous with other debug sections. So
3080 walk the current section list, find the section with the
3081 highest VMA and start the debuglink section after that one. */
3082 for (osec
= obfd
->sections
, highest_section
= NULL
;
3086 && (highest_section
== NULL
3087 || osec
->vma
> highest_section
->vma
))
3088 highest_section
= osec
;
3090 if (highest_section
)
3091 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3092 + highest_section
->size
,
3093 /* FIXME: We ought to be using
3094 COFF_PAGE_SIZE here or maybe
3095 bfd_section_alignment() (if it
3096 was set) but since this is for PE
3097 and we know the required alignment
3098 it is easier just to hard code it. */
3101 /* Umm, not sure what to do in this case. */
3102 debuglink_vma
= 0x1000;
3104 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3109 num_sec
= bfd_count_sections (obfd
);
3111 && (gap_fill_set
|| pad_to_set
))
3115 /* We must fill in gaps between the sections and/or we must pad
3116 the last section to a specified address. We do this by
3117 grabbing a list of the sections, sorting them by VMA, and
3118 increasing the section sizes as required to fill the gaps.
3119 We write out the gap contents below. */
3121 osections
= xmalloc (num_sec
* sizeof (*osections
));
3123 bfd_map_over_sections (obfd
, get_sections
, &set
);
3125 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3127 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3128 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3132 for (i
= 0; i
< num_sec
- 1; i
++)
3135 bfd_size_type size
; /* Octets. */
3136 bfd_vma gap_start
, gap_stop
; /* Octets. */
3137 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3138 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3140 flags
= bfd_section_flags (osections
[i
]);
3141 if ((flags
& SEC_HAS_CONTENTS
) == 0
3142 || (flags
& SEC_LOAD
) == 0)
3145 size
= bfd_section_size (osections
[i
]);
3146 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3147 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3148 if (gap_start
< gap_stop
)
3150 if (!bfd_set_section_size (osections
[i
],
3151 size
+ (gap_stop
- gap_start
)))
3153 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3154 _("Can't fill gap after section"));
3158 gaps
[i
] = gap_stop
- gap_start
;
3159 if (max_gap
< gap_stop
- gap_start
)
3160 max_gap
= gap_stop
- gap_start
;
3167 bfd_vma lma
; /* Octets. */
3168 bfd_size_type size
; /* Octets. */
3169 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3170 bfd_vma _pad_to
= pad_to
* opb
;
3172 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3173 size
= bfd_section_size (osections
[num_sec
- 1]);
3174 if (lma
+ size
< _pad_to
)
3176 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3178 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3179 _("can't add padding"));
3184 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3185 if (max_gap
< _pad_to
- (lma
+ size
))
3186 max_gap
= _pad_to
- (lma
+ size
);
3192 /* Symbol filtering must happen after the output sections
3193 have been created, but before their contents are set. */
3195 if (convert_debugging
)
3196 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3198 if (strip_symbols
== STRIP_DEBUG
3199 || strip_symbols
== STRIP_ALL
3200 || strip_symbols
== STRIP_UNNEEDED
3201 || strip_symbols
== STRIP_NONDEBUG
3202 || strip_symbols
== STRIP_DWO
3203 || strip_symbols
== STRIP_NONDWO
3204 || discard_locals
!= LOCALS_UNDEF
3206 || htab_elements (strip_specific_htab
) != 0
3207 || htab_elements (keep_specific_htab
) != 0
3208 || htab_elements (localize_specific_htab
) != 0
3209 || htab_elements (globalize_specific_htab
) != 0
3210 || htab_elements (keepglobal_specific_htab
) != 0
3211 || htab_elements (weaken_specific_htab
) != 0
3212 || htab_elements (redefine_specific_htab
) != 0
3213 || prefix_symbols_string
3216 || convert_debugging
3217 || change_leading_char
3218 || remove_leading_char
3219 || section_rename_list
3223 /* Mark symbols used in output relocations so that they
3224 are kept, even if they are local labels or static symbols.
3226 Note we iterate over the input sections examining their
3227 relocations since the relocations for the output sections
3228 haven't been set yet. mark_symbols_used_in_relocations will
3229 ignore input sections which have no corresponding output
3231 if (strip_symbols
!= STRIP_ALL
)
3233 bfd_set_error (bfd_error_no_error
);
3234 bfd_map_over_sections (ibfd
,
3235 mark_symbols_used_in_relocations
,
3237 if (bfd_get_error () != bfd_error_no_error
)
3244 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3245 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3248 if (convert_debugging
&& dhandle
!= NULL
)
3252 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3255 dhandle
= NULL
; /* Paranoia... */
3264 bfd_set_symtab (obfd
, osympp
, symcount
);
3266 /* This has to happen before section positions are set. */
3267 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3269 /* This has to happen after the symbol table has been set. */
3270 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3272 if (add_sections
!= NULL
)
3274 struct section_add
*padd
;
3276 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3278 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3281 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3287 if (update_sections
!= NULL
)
3289 struct section_add
*pupdate
;
3291 for (pupdate
= update_sections
;
3293 pupdate
= pupdate
->next
)
3295 osec
= pupdate
->section
->output_section
;
3296 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3299 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3305 if (merged_note_sections
!= NULL
)
3307 merged_note_section
* merged
= NULL
;
3309 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3311 if (! is_mergeable_note_section (obfd
, osec
))
3315 merged
= merged_note_sections
;
3317 /* It is likely that output sections are in the same order
3318 as the input sections, but do not assume that this is
3320 if (strcmp (bfd_section_name (merged
->sec
),
3321 bfd_section_name (osec
)) != 0)
3323 for (merged
= merged_note_sections
;
3325 merged
= merged
->next
)
3326 if (strcmp (bfd_section_name (merged
->sec
),
3327 bfd_section_name (osec
)) == 0)
3332 bfd_nonfatal_message
3334 _("error: failed to locate merged notes"));
3339 if (merged
->contents
== NULL
)
3341 bfd_nonfatal_message
3343 _("error: failed to merge notes"));
3347 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3350 bfd_nonfatal_message
3352 _("error: failed to copy merged notes into output"));
3356 merged
= merged
->next
;
3359 /* Free the memory. */
3360 merged_note_section
* next
;
3361 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3363 next
= merged
->next
;
3364 free (merged
->contents
);
3368 else if (merge_notes
&& ! is_strip
)
3369 non_fatal (_("%s: Could not find any mergeable note sections"),
3370 bfd_get_filename (ibfd
));
3372 if (gnu_debuglink_filename
!= NULL
)
3374 if (! bfd_fill_in_gnu_debuglink_section
3375 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3377 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3378 _("cannot fill debug link section `%s'"),
3379 gnu_debuglink_filename
);
3388 /* Fill in the gaps. */
3391 buf
= (bfd_byte
*) xmalloc (max_gap
);
3392 memset (buf
, gap_fill
, max_gap
);
3394 for (i
= 0; i
< num_sec
; i
++)
3402 off
= bfd_section_size (osections
[i
]) - left
;
3413 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3416 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3432 /* Allow the BFD backend to copy any private data it understands
3433 from the input BFD to the output BFD. This is done last to
3434 permit the routine to look at the filtered symbol table, which is
3435 important for the ECOFF code at least. */
3436 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3438 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3439 _("error copying private BFD data"));
3443 /* Switch to the alternate machine code. We have to do this at the
3444 very end, because we only initialize the header when we create
3445 the first section. */
3446 if (use_alt_mach_code
!= 0)
3448 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3450 non_fatal (_("this target does not support %lu alternative machine codes"),
3452 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3454 non_fatal (_("treating that number as an absolute e_machine value instead"));
3455 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3458 non_fatal (_("ignoring the alternative value"));
3465 /* Read each archive element in turn from IBFD, copy the
3466 contents to temp file, and keep the temp file handle.
3467 If 'force_output_target' is TRUE then make sure that
3468 all elements in the new archive are of the type
3472 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3473 bfd_boolean force_output_target
,
3474 const bfd_arch_info_type
*input_arch
)
3478 struct name_list
*next
;
3482 bfd
**ptr
= &obfd
->archive_head
;
3485 const char *filename
;
3487 /* PR 24281: It is not clear what should happen when copying a thin archive.
3488 One part is straight forward - if the output archive is in a different
3489 directory from the input archive then any relative paths in the library
3490 should be adjusted to the new location. But if any transformation
3491 options are active (eg strip, rename, add, etc) then the implication is
3492 that these should be applied to the files pointed to by the archive.
3493 But since objcopy is not destructive, this means that new files must be
3494 created, and there is no guidance for the names of the new files. (Plus
3495 this conflicts with one of the goals of thin libraries - only taking up
3496 a minimal amount of space in the file system).
3498 So for now we fail if an attempt is made to copy such libraries. */
3499 if (ibfd
->is_thin_archive
)
3502 bfd_set_error (bfd_error_invalid_operation
);
3503 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3504 _("sorry: copying thin archives is not currently supported"));
3508 /* Make a temp directory to hold the contents. */
3509 dir
= make_tempdir (bfd_get_filename (obfd
));
3511 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3514 if (strip_symbols
== STRIP_ALL
)
3515 obfd
->has_armap
= FALSE
;
3517 obfd
->has_armap
= ibfd
->has_armap
;
3518 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3521 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3525 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3527 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3530 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3531 goto cleanup_and_exit
;
3534 while (!status
&& this_element
!= NULL
)
3540 int stat_status
= 0;
3541 bfd_boolean del
= TRUE
;
3542 bfd_boolean ok_object
;
3544 /* PR binutils/17533: Do not allow directory traversal
3545 outside of the current directory tree by archive members. */
3546 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3548 non_fatal (_("illegal pathname found in archive member: %s"),
3549 bfd_get_filename (this_element
));
3551 goto cleanup_and_exit
;
3554 /* Create an output file for this member. */
3555 output_name
= concat (dir
, "/",
3556 bfd_get_filename (this_element
), (char *) 0);
3558 /* If the file already exists, make another temp dir. */
3559 if (stat (output_name
, &buf
) >= 0)
3561 char * tmpdir
= make_tempdir (output_name
);
3566 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3569 goto cleanup_and_exit
;
3572 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3577 output_name
= concat (tmpdir
, "/",
3578 bfd_get_filename (this_element
), (char *) 0);
3583 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3585 if (stat_status
!= 0)
3586 non_fatal (_("internal stat error on %s"),
3587 bfd_get_filename (this_element
));
3590 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3591 l
->name
= output_name
;
3596 ok_object
= bfd_check_format (this_element
, bfd_object
);
3598 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3599 _("Unable to recognise the format of file"));
3601 /* PR binutils/3110: Cope with archives
3602 containing multiple target types. */
3603 if (force_output_target
|| !ok_object
)
3604 output_bfd
= bfd_openw (output_name
, output_target
);
3606 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3608 if (output_bfd
== NULL
)
3610 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3612 goto cleanup_and_exit
;
3617 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3619 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3620 /* Try again as an unknown object file. */
3622 else if (!bfd_close (output_bfd
))
3624 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3625 /* Error in new object file. Don't change archive. */
3632 del
= !copy_unknown_object (this_element
, output_bfd
);
3633 if (!bfd_close_all_done (output_bfd
))
3635 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3636 /* Error in new object file. Don't change archive. */
3643 unlink (output_name
);
3648 if (preserve_dates
&& stat_status
== 0)
3649 set_times (output_name
, &buf
);
3651 /* Open the newly output file and attach to our list. */
3652 output_bfd
= bfd_openr (output_name
, output_target
);
3654 l
->obfd
= output_bfd
;
3657 ptr
= &output_bfd
->archive_next
;
3659 last_element
= this_element
;
3661 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3663 bfd_close (last_element
);
3668 filename
= bfd_get_filename (obfd
);
3669 if (!bfd_close (obfd
))
3672 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3675 filename
= bfd_get_filename (ibfd
);
3676 if (!bfd_close (ibfd
))
3679 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3683 /* Delete all the files that we opened. */
3685 struct name_list
* next
;
3687 for (l
= list
; l
!= NULL
; l
= next
)
3689 if (l
->obfd
== NULL
)
3693 bfd_close (l
->obfd
);
3705 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3707 /* This is only relevant to Coff targets. */
3708 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3711 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3712 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3713 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3717 /* The top-level control. */
3720 copy_file (const char *input_filename
, const char *output_filename
,
3721 const char *input_target
, const char *output_target
,
3722 const bfd_arch_info_type
*input_arch
)
3725 char **obj_matching
;
3726 char **core_matching
;
3727 off_t size
= get_file_size (input_filename
);
3732 non_fatal (_("error: the input file '%s' is empty"),
3738 /* To allow us to do "strip *" without dying on the first
3739 non-object file, failures are nonfatal. */
3740 ibfd
= bfd_openr (input_filename
, input_target
);
3743 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3748 switch (do_debug_sections
)
3752 case compress_gnu_zlib
:
3753 case compress_gabi_zlib
:
3754 ibfd
->flags
|= BFD_COMPRESS
;
3755 /* Don't check if input is ELF here since this information is
3756 only available after bfd_check_format_matches is called. */
3757 if (do_debug_sections
!= compress_gnu_zlib
)
3758 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3761 ibfd
->flags
|= BFD_DECOMPRESS
;
3767 switch (do_elf_stt_common
)
3769 case elf_stt_common
:
3770 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3773 case no_elf_stt_common
:
3774 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3780 if (bfd_check_format (ibfd
, bfd_archive
))
3782 bfd_boolean force_output_target
;
3785 /* bfd_get_target does not return the correct value until
3786 bfd_check_format succeeds. */
3787 if (output_target
== NULL
)
3789 output_target
= bfd_get_target (ibfd
);
3790 force_output_target
= FALSE
;
3793 force_output_target
= TRUE
;
3795 obfd
= bfd_openw (output_filename
, output_target
);
3798 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3803 if (gnu_debuglink_filename
!= NULL
)
3805 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3806 bfd_get_filename (ibfd
));
3807 gnu_debuglink_filename
= NULL
;
3810 /* This is a no-op on non-Coff targets. */
3811 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3813 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3815 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3820 /* bfd_get_target does not return the correct value until
3821 bfd_check_format succeeds. */
3822 if (output_target
== NULL
)
3823 output_target
= bfd_get_target (ibfd
);
3825 obfd
= bfd_openw (output_filename
, output_target
);
3828 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3832 /* This is a no-op on non-Coff targets. */
3833 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3835 if (! copy_object (ibfd
, obfd
, input_arch
))
3838 /* PR 17512: file: 0f15796a.
3839 If the file could not be copied it may not be in a writeable
3840 state. So use bfd_close_all_done to avoid the possibility of
3841 writing uninitialised data into the file. */
3842 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3845 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3849 if (!bfd_close (ibfd
))
3852 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3858 bfd_error_type obj_error
= bfd_get_error ();
3859 bfd_error_type core_error
;
3861 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3863 /* This probably can't happen.. */
3864 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3865 free (obj_matching
);
3869 core_error
= bfd_get_error ();
3870 /* Report the object error in preference to the core error. */
3871 if (obj_error
!= core_error
)
3872 bfd_set_error (obj_error
);
3874 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3876 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3878 list_matching_formats (obj_matching
);
3879 free (obj_matching
);
3881 if (core_error
== bfd_error_file_ambiguously_recognized
)
3883 list_matching_formats (core_matching
);
3884 free (core_matching
);
3891 /* Add a name to the section renaming list. */
3894 add_section_rename (const char * old_name
, const char * new_name
,
3897 section_rename
* srename
;
3899 /* Check for conflicts first. */
3900 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3901 if (strcmp (srename
->old_name
, old_name
) == 0)
3903 /* Silently ignore duplicate definitions. */
3904 if (strcmp (srename
->new_name
, new_name
) == 0
3905 && srename
->flags
== flags
)
3908 fatal (_("Multiple renames of section %s"), old_name
);
3911 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3913 srename
->old_name
= old_name
;
3914 srename
->new_name
= new_name
;
3915 srename
->flags
= flags
;
3916 srename
->next
= section_rename_list
;
3918 section_rename_list
= srename
;
3921 /* Check the section rename list for a new name of the input section
3922 called OLD_NAME. Returns the new name if one is found and sets
3923 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3926 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3928 const section_rename
*srename
;
3930 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3931 if (strcmp (srename
->old_name
, old_name
) == 0)
3933 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3934 *returned_flags
= srename
->flags
;
3936 return srename
->new_name
;
3942 /* Once each of the sections is copied, we may still need to do some
3943 finalization work for private section headers. Do that here. */
3946 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3948 /* Allow the BFD backend to copy any private data it understands
3949 from the input section to the output section. */
3950 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3953 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3954 _("error in private header data"));
3958 /* All went well. */
3962 /* Create a section in OBFD with the same
3963 name and attributes as ISECTION in IBFD. */
3966 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3968 bfd
*obfd
= (bfd
*) obfdarg
;
3969 struct section_list
*p
;
3977 const char * new_name
;
3978 char *prefix
= NULL
;
3979 bfd_boolean make_nobits
;
3980 unsigned int alignment
;
3982 if (is_strip_section (ibfd
, isection
))
3985 /* Get the, possibly new, name of the output section. */
3986 name
= bfd_section_name (isection
);
3987 flags
= bfd_section_flags (isection
);
3988 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3990 flags
&= bfd_applicable_section_flags (ibfd
);
3991 flags
&= bfd_applicable_section_flags (obfd
);
3993 new_name
= find_section_rename (name
, &flags
);
3994 if (new_name
!= name
)
3997 flags
= check_new_section_flags (flags
, obfd
, name
);
4000 /* Prefix sections. */
4001 if (prefix_alloc_sections_string
4002 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
4003 prefix
= prefix_alloc_sections_string
;
4004 else if (prefix_sections_string
)
4005 prefix
= prefix_sections_string
;
4011 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4017 make_nobits
= FALSE
;
4019 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4020 SECTION_CONTEXT_SET_FLAGS
);
4023 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4024 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4026 else if (strip_symbols
== STRIP_NONDEBUG
4027 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4028 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4030 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4031 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4035 /* Twiddle the input section flags so that it seems to
4036 elf.c:copy_private_bfd_data that section flags have not
4037 changed between input and output sections. This hack
4038 prevents wholesale rewriting of the program headers. */
4039 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4043 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4045 if (osection
== NULL
)
4047 err
= _("failed to create output section");
4052 elf_section_type (osection
) = SHT_NOBITS
;
4054 size
= bfd_section_size (isection
);
4055 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4057 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4058 else if (extract_symbol
)
4060 if (!bfd_set_section_size (osection
, size
))
4062 err
= _("failed to set size");
4066 vma
= bfd_section_vma (isection
);
4067 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4068 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4071 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4077 vma
+= change_section_address
;
4079 if (!bfd_set_section_vma (osection
, vma
))
4081 err
= _("failed to set vma");
4085 lma
= isection
->lma
;
4086 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4087 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4090 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4096 lma
+= change_section_address
;
4098 osection
->lma
= lma
;
4100 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4101 SECTION_CONTEXT_SET_ALIGNMENT
);
4103 alignment
= p
->alignment
;
4105 alignment
= bfd_section_alignment (isection
);
4107 /* FIXME: This is probably not enough. If we change the LMA we
4108 may have to recompute the header for the file as well. */
4109 if (!bfd_set_section_alignment (osection
, alignment
))
4111 err
= _("failed to set alignment");
4115 /* Copy merge entity size. */
4116 osection
->entsize
= isection
->entsize
;
4118 /* Copy compress status. */
4119 osection
->compress_status
= isection
->compress_status
;
4121 /* This used to be mangle_section; we do here to avoid using
4122 bfd_get_section_by_name since some formats allow multiple
4123 sections with the same name. */
4124 isection
->output_section
= osection
;
4125 isection
->output_offset
= 0;
4127 if ((isection
->flags
& SEC_GROUP
) != 0)
4129 asymbol
*gsym
= group_signature (isection
);
4133 gsym
->flags
|= BSF_KEEP
;
4134 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4135 elf_group_id (isection
) = gsym
;
4139 /* Allow the BFD backend to copy any private data it understands
4140 from the input section to the output section. */
4141 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4143 err
= _("failed to copy private data");
4147 /* All went well. */
4152 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4155 /* Return TRUE if input section ISECTION should be skipped. */
4158 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4164 /* If we have already failed earlier on,
4165 do not keep on generating complaints now. */
4172 if (is_strip_section (ibfd
, isection
))
4175 if (is_update_section (ibfd
, isection
))
4178 /* When merging a note section we skip the copying of the contents,
4179 but not the copying of the relocs associated with the contents. */
4180 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4183 flags
= bfd_section_flags (isection
);
4184 if ((flags
& SEC_GROUP
) != 0)
4187 osection
= isection
->output_section
;
4188 size
= bfd_section_size (isection
);
4190 if (size
== 0 || osection
== 0)
4196 /* Add section SECTION_PATTERN to the list of sections that will have their
4197 relocations removed. */
4200 handle_remove_relocations_option (const char *section_pattern
)
4202 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4205 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4206 otherwise return FALSE. If the user has requested that relocations be
4207 removed from a section that does not have relocations then this
4208 function will still return TRUE. */
4211 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4213 return (find_section_list (bfd_section_name (isection
), FALSE
,
4214 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4217 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4218 A special case is detected here, if the user asks to remove a relocation
4219 section (one starting with ".rela" or ".rel") then this removal must
4220 be done using a different technique in a relocatable object. */
4223 handle_remove_section_option (const char *section_pattern
)
4225 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4226 if (strncmp (section_pattern
, ".rel", 4) == 0)
4228 section_pattern
+= 4;
4229 if (*section_pattern
== 'a')
4231 if (*section_pattern
)
4232 handle_remove_relocations_option (section_pattern
);
4234 sections_removed
= TRUE
;
4237 /* Copy relocations in input section ISECTION of IBFD to an output
4238 section with the same name in OBFDARG. If stripping then don't
4239 copy any relocation info. */
4242 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4244 bfd
*obfd
= (bfd
*) obfdarg
;
4250 if (skip_section (ibfd
, isection
, FALSE
))
4253 osection
= isection
->output_section
;
4255 /* Core files and DWO files do not need to be relocated. */
4256 if (bfd_get_format (obfd
) == bfd_core
4257 || strip_symbols
== STRIP_NONDWO
4258 || discard_relocations (ibfd
, isection
))
4262 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4266 /* Do not complain if the target does not support relocations. */
4267 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4272 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4280 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4281 osection
->flags
&= ~SEC_RELOC
;
4285 if (isection
->orelocation
!= NULL
)
4287 /* Some other function has already set up the output relocs
4288 for us, so scan those instead of the default relocs. */
4289 relcount
= isection
->reloc_count
;
4290 relpp
= isection
->orelocation
;
4294 relpp
= (arelent
**) xmalloc (relsize
);
4295 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4299 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4300 _("relocation count is negative"));
4305 if (strip_symbols
== STRIP_ALL
)
4307 /* Remove relocations which are not in
4308 keep_strip_specific_list. */
4309 arelent
**temp_relpp
;
4310 long temp_relcount
= 0;
4313 temp_relpp
= (arelent
**) xmalloc (relsize
);
4314 for (i
= 0; i
< relcount
; i
++)
4316 /* PR 17512: file: 9e907e0c. */
4317 if (relpp
[i
]->sym_ptr_ptr
4319 && * relpp
[i
]->sym_ptr_ptr
)
4320 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4321 keep_specific_htab
))
4322 temp_relpp
[temp_relcount
++] = relpp
[i
];
4324 relcount
= temp_relcount
;
4325 if (isection
->orelocation
== NULL
)
4330 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4333 osection
->flags
&= ~SEC_RELOC
;
4339 /* Copy the data of input section ISECTION of IBFD
4340 to an output section with the same name in OBFD. */
4343 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4345 bfd
*obfd
= (bfd
*) obfdarg
;
4346 struct section_list
*p
;
4350 if (skip_section (ibfd
, isection
, TRUE
))
4353 osection
= isection
->output_section
;
4354 /* The output SHF_COMPRESSED section size is different from input if
4355 ELF classes of input and output aren't the same. We can't use
4356 the output section size since --interleave will shrink the output
4357 section. Size will be updated if the section is converted. */
4358 size
= bfd_section_size (isection
);
4360 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4361 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4363 bfd_byte
*memhunk
= NULL
;
4365 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4366 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4370 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4377 /* We don't handle leftover bytes (too many possible behaviors,
4378 and we don't know what the user wants). The section length
4379 must be a multiple of the number of bytes to swap. */
4380 if ((size
% reverse_bytes
) == 0)
4385 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4386 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4388 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4391 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4392 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4396 /* User must pad the section up in order to do this. */
4397 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4398 bfd_section_name (isection
), reverse_bytes
);
4403 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4404 char *from
= (char *) memhunk
+ copy_byte
;
4405 char *to
= (char *) memhunk
;
4406 char *end
= (char *) memhunk
+ size
;
4409 /* If the section address is not exactly divisible by the interleave,
4410 then we must bias the from address. If the copy_byte is less than
4411 the bias, then we must skip forward one interleave, and increment
4413 int extra
= isection
->lma
% interleave
;
4415 if (copy_byte
< extra
)
4418 for (; from
< end
; from
+= interleave
)
4419 for (i
= 0; i
< copy_width
; i
++)
4421 if (&from
[i
] >= end
)
4426 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4427 osection
->lma
/= interleave
;
4428 if (copy_byte
< extra
)
4432 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4435 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4441 else if ((p
= find_section_list (bfd_section_name (isection
),
4442 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4443 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4445 void *memhunk
= xmalloc (size
);
4447 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4448 flag--they can just remove the section entirely and add it
4449 back again. However, we do permit them to turn on the
4450 SEC_HAS_CONTENTS flag, and take it to mean that the section
4451 contents should be zeroed out. */
4453 memset (memhunk
, 0, size
);
4454 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4457 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4465 /* Get all the sections. This is used when --gap-fill or --pad-to is
4469 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4471 asection
***secppp
= (asection
***) secppparg
;
4473 **secppp
= osection
;
4477 /* Sort sections by LMA. This is called via qsort, and is used when
4478 --gap-fill or --pad-to is used. We force non loadable or empty
4479 sections to the front, where they are easier to ignore. */
4482 compare_section_lma (const void *arg1
, const void *arg2
)
4484 const asection
*sec1
= *(const asection
**) arg1
;
4485 const asection
*sec2
= *(const asection
**) arg2
;
4486 flagword flags1
, flags2
;
4488 /* Sort non loadable sections to the front. */
4489 flags1
= sec1
->flags
;
4490 flags2
= sec2
->flags
;
4491 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4492 || (flags1
& SEC_LOAD
) == 0)
4494 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4495 && (flags2
& SEC_LOAD
) != 0)
4500 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4501 || (flags2
& SEC_LOAD
) == 0)
4505 /* Sort sections by LMA. */
4506 if (sec1
->lma
> sec2
->lma
)
4508 if (sec1
->lma
< sec2
->lma
)
4511 /* Sort sections with the same LMA by size. */
4512 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4514 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4517 if (sec1
->id
> sec2
->id
)
4519 if (sec1
->id
< sec2
->id
)
4524 /* Mark all the symbols which will be used in output relocations with
4525 the BSF_KEEP flag so that those symbols will not be stripped.
4527 Ignore relocations which will not appear in the output file. */
4530 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4532 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4537 /* Ignore an input section with no corresponding output section. */
4538 if (isection
->output_section
== NULL
)
4541 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4544 /* Do not complain if the target does not support relocations. */
4545 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4547 bfd_fatal (bfd_get_filename (ibfd
));
4553 relpp
= (arelent
**) xmalloc (relsize
);
4554 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4556 bfd_fatal (bfd_get_filename (ibfd
));
4558 /* Examine each symbol used in a relocation. If it's not one of the
4559 special bfd section symbols, then mark it with BSF_KEEP. */
4560 for (i
= 0; i
< relcount
; i
++)
4562 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4563 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4564 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4565 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4566 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4567 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4568 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4575 /* Write out debugging information. */
4578 write_debugging_info (bfd
*obfd
, void *dhandle
,
4579 long *symcountp ATTRIBUTE_UNUSED
,
4580 asymbol
***symppp ATTRIBUTE_UNUSED
)
4582 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4583 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4585 bfd_byte
*syms
, *strings
= NULL
;
4586 bfd_size_type symsize
, stringsize
;
4587 asection
*stabsec
, *stabstrsec
;
4590 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4595 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4596 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4597 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4599 || stabstrsec
== NULL
4600 || !bfd_set_section_size (stabsec
, symsize
)
4601 || !bfd_set_section_size (stabstrsec
, stringsize
)
4602 || !bfd_set_section_alignment (stabsec
, 2)
4603 || !bfd_set_section_alignment (stabstrsec
, 0))
4605 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4606 _("can't create debugging section"));
4611 /* We can get away with setting the section contents now because
4612 the next thing the caller is going to do is copy over the
4613 real sections. We may someday have to split the contents
4614 setting out of this function. */
4615 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4616 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4619 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4620 _("can't set debugging section contents"));
4628 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4629 _("don't know how to write debugging information for %s"),
4630 bfd_get_target (obfd
));
4634 /* If neither -D nor -U was specified explicitly,
4635 then use the configured default. */
4637 default_deterministic (void)
4639 if (deterministic
< 0)
4640 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4644 strip_main (int argc
, char *argv
[])
4646 char *input_target
= NULL
;
4647 char *output_target
= NULL
;
4648 bfd_boolean show_version
= FALSE
;
4649 bfd_boolean formats_info
= FALSE
;
4652 char *output_file
= NULL
;
4653 bfd_boolean merge_notes_set
= FALSE
;
4655 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4656 strip_options
, (int *) 0)) != EOF
)
4661 input_target
= optarg
;
4664 output_target
= optarg
;
4667 input_target
= output_target
= optarg
;
4670 handle_remove_section_option (optarg
);
4672 case OPTION_KEEP_SECTION
:
4673 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4675 case OPTION_REMOVE_RELOCS
:
4676 handle_remove_relocations_option (optarg
);
4679 strip_symbols
= STRIP_ALL
;
4683 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4684 strip_symbols
= STRIP_DEBUG
;
4686 case OPTION_STRIP_DWO
:
4687 strip_symbols
= STRIP_DWO
;
4689 case OPTION_STRIP_UNNEEDED
:
4690 strip_symbols
= STRIP_UNNEEDED
;
4693 add_specific_symbol (optarg
, keep_specific_htab
);
4697 merge_notes_set
= TRUE
;
4699 case OPTION_NO_MERGE_NOTES
:
4700 merge_notes
= FALSE
;
4701 merge_notes_set
= TRUE
;
4704 add_specific_symbol (optarg
, strip_specific_htab
);
4707 output_file
= optarg
;
4710 preserve_dates
= TRUE
;
4713 deterministic
= TRUE
;
4716 deterministic
= FALSE
;
4719 discard_locals
= LOCALS_ALL
;
4722 discard_locals
= LOCALS_START_L
;
4728 show_version
= TRUE
;
4730 case OPTION_FORMATS_INFO
:
4731 formats_info
= TRUE
;
4733 case OPTION_ONLY_KEEP_DEBUG
:
4734 strip_symbols
= STRIP_NONDEBUG
;
4736 case OPTION_KEEP_FILE_SYMBOLS
:
4737 keep_file_symbols
= 1;
4740 /* We've been given a long option. */
4747 strip_usage (stdout
, 0);
4749 strip_usage (stderr
, 1);
4753 /* If the user has not expressly chosen to merge/not-merge ELF notes
4754 then enable the merging unless we are stripping debug or dwo info. */
4755 if (! merge_notes_set
4756 && (strip_symbols
== STRIP_UNDEF
4757 || strip_symbols
== STRIP_ALL
4758 || strip_symbols
== STRIP_UNNEEDED
4759 || strip_symbols
== STRIP_NONDEBUG
4760 || strip_symbols
== STRIP_NONDWO
))
4770 print_version ("strip");
4772 default_deterministic ();
4774 /* Default is to strip all symbols. */
4775 if (strip_symbols
== STRIP_UNDEF
4776 && discard_locals
== LOCALS_UNDEF
4777 && htab_elements (strip_specific_htab
) == 0)
4778 strip_symbols
= STRIP_ALL
;
4780 if (output_target
== NULL
)
4781 output_target
= input_target
;
4785 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4786 strip_usage (stderr
, 1);
4788 for (; i
< argc
; i
++)
4790 int hold_status
= status
;
4791 struct stat statbuf
;
4794 if (get_file_size (argv
[i
]) < 1)
4801 /* No need to check the return value of stat().
4802 It has already been checked in get_file_size(). */
4803 stat (argv
[i
], &statbuf
);
4805 if (output_file
== NULL
4806 || filename_cmp (argv
[i
], output_file
) == 0)
4807 tmpname
= make_tempname (argv
[i
]);
4809 tmpname
= output_file
;
4811 if (tmpname
== NULL
)
4813 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4814 _("could not create temporary file to hold stripped copy"));
4820 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4824 set_times (tmpname
, &statbuf
);
4825 if (output_file
!= tmpname
)
4826 status
= (smart_rename (tmpname
,
4827 output_file
? output_file
: argv
[i
],
4828 preserve_dates
) != 0);
4830 status
= hold_status
;
4833 unlink_if_ordinary (tmpname
);
4834 if (output_file
!= tmpname
)
4841 /* Set up PE subsystem. */
4844 set_pe_subsystem (const char *s
)
4846 const char *version
, *subsystem
;
4856 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4857 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4858 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4859 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4860 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4861 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4862 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4863 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4864 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4865 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4871 /* Check for the presence of a version number. */
4872 version
= strchr (s
, ':');
4873 if (version
== NULL
)
4877 int len
= version
- s
;
4881 version
= copy
+ 1 + len
;
4882 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4884 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4886 non_fatal (_("%s: bad version in PE subsystem"), s
);
4889 /* Check for numeric subsystem. */
4890 value
= (short) strtol (subsystem
, ©
, 0);
4893 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4894 if (v
[i
].value
== value
)
4896 pe_subsystem
= value
;
4897 set_def
= v
[i
].set_def
;
4903 /* Search for subsystem by name. */
4904 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4905 if (strcmp (subsystem
, v
[i
].name
) == 0)
4907 pe_subsystem
= v
[i
].value
;
4908 set_def
= v
[i
].set_def
;
4916 fatal (_("unknown PE subsystem: %s"), s
);
4921 if (pe_file_alignment
== (bfd_vma
) -1)
4922 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4923 if (pe_section_alignment
== (bfd_vma
) -1)
4924 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4928 free ((char *) subsystem
);
4931 /* Convert EFI target to PEI target. */
4934 convert_efi_target (char *efi
)
4940 if (strcmp (efi
+ 4, "ia32") == 0)
4942 /* Change ia32 to i386. */
4947 else if (strcmp (efi
+ 4, "x86_64") == 0)
4949 /* Change x86_64 to x86-64. */
4954 /* Allocate and return a pointer to a struct section_add, initializing the
4955 structure using ARG, a string in the format "sectionname=filename".
4956 The returned structure will have its next pointer set to NEXT. The
4957 OPTION field is the name of the command line option currently being
4958 parsed, and is only used if an error needs to be reported. */
4960 static struct section_add
*
4961 init_section_add (const char *arg
,
4962 struct section_add
*next
,
4965 struct section_add
*pa
;
4968 s
= strchr (arg
, '=');
4970 fatal (_("bad format for %s"), option
);
4972 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4973 pa
->name
= xstrndup (arg
, s
- arg
);
4974 pa
->filename
= s
+ 1;
4976 pa
->contents
= NULL
;
4982 /* Load the file specified in PA, allocating memory to hold the file
4983 contents, and store a pointer to the allocated memory in the contents
4984 field of PA. The size field of PA is also updated. All errors call
4988 section_add_load_file (struct section_add
*pa
)
4993 /* We don't use get_file_size so that we can do
4994 --add-section .note.GNU_stack=/dev/null
4995 get_file_size doesn't work on /dev/null. */
4997 f
= fopen (pa
->filename
, FOPEN_RB
);
4999 fatal (_("cannot open: %s: %s"),
5000 pa
->filename
, strerror (errno
));
5004 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5012 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5015 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5017 fatal (_("%s: fread failed"), pa
->filename
);
5028 copy_main (int argc
, char *argv
[])
5030 char *input_filename
= NULL
;
5031 char *output_filename
= NULL
;
5033 char *input_target
= NULL
;
5034 char *output_target
= NULL
;
5035 bfd_boolean show_version
= FALSE
;
5036 bfd_boolean change_warn
= TRUE
;
5037 bfd_boolean formats_info
= FALSE
;
5038 bfd_boolean use_globalize
= FALSE
;
5039 bfd_boolean use_keep_global
= FALSE
;
5041 struct stat statbuf
;
5042 const bfd_arch_info_type
*input_arch
= NULL
;
5044 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5045 copy_options
, (int *) 0)) != EOF
)
5050 copy_byte
= atoi (optarg
);
5052 fatal (_("byte number must be non-negative"));
5056 input_arch
= bfd_scan_arch (optarg
);
5057 if (input_arch
== NULL
)
5058 fatal (_("architecture %s unknown"), optarg
);
5064 interleave
= atoi (optarg
);
5066 fatal (_("interleave must be positive"));
5072 case OPTION_INTERLEAVE_WIDTH
:
5073 copy_width
= atoi (optarg
);
5075 fatal(_("interleave width must be positive"));
5079 case 's': /* "source" - 'I' is preferred */
5080 input_target
= optarg
;
5084 case 'd': /* "destination" - 'O' is preferred */
5085 output_target
= optarg
;
5089 input_target
= output_target
= optarg
;
5093 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5094 sections_copied
= TRUE
;
5098 handle_remove_section_option (optarg
);
5101 case OPTION_KEEP_SECTION
:
5102 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5105 case OPTION_REMOVE_RELOCS
:
5106 handle_remove_relocations_option (optarg
);
5110 strip_symbols
= STRIP_ALL
;
5114 strip_symbols
= STRIP_DEBUG
;
5117 case OPTION_STRIP_DWO
:
5118 strip_symbols
= STRIP_DWO
;
5121 case OPTION_STRIP_UNNEEDED
:
5122 strip_symbols
= STRIP_UNNEEDED
;
5125 case OPTION_ONLY_KEEP_DEBUG
:
5126 strip_symbols
= STRIP_NONDEBUG
;
5129 case OPTION_KEEP_FILE_SYMBOLS
:
5130 keep_file_symbols
= 1;
5133 case OPTION_ADD_GNU_DEBUGLINK
:
5134 long_section_names
= ENABLE
;
5135 gnu_debuglink_filename
= optarg
;
5139 add_specific_symbol (optarg
, keep_specific_htab
);
5145 case OPTION_NO_MERGE_NOTES
:
5146 merge_notes
= FALSE
;
5150 add_specific_symbol (optarg
, strip_specific_htab
);
5153 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5154 add_specific_symbol (optarg
, strip_unneeded_htab
);
5158 add_specific_symbol (optarg
, localize_specific_htab
);
5161 case OPTION_GLOBALIZE_SYMBOL
:
5162 use_globalize
= TRUE
;
5163 add_specific_symbol (optarg
, globalize_specific_htab
);
5167 use_keep_global
= TRUE
;
5168 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5172 add_specific_symbol (optarg
, weaken_specific_htab
);
5176 preserve_dates
= TRUE
;
5180 deterministic
= TRUE
;
5184 deterministic
= FALSE
;
5192 discard_locals
= LOCALS_ALL
;
5196 discard_locals
= LOCALS_START_L
;
5204 show_version
= TRUE
;
5207 case OPTION_FORMATS_INFO
:
5208 formats_info
= TRUE
;
5215 case OPTION_ADD_SECTION
:
5216 add_sections
= init_section_add (optarg
, add_sections
,
5218 section_add_load_file (add_sections
);
5221 case OPTION_UPDATE_SECTION
:
5222 update_sections
= init_section_add (optarg
, update_sections
,
5223 "--update-section");
5224 section_add_load_file (update_sections
);
5227 case OPTION_DUMP_SECTION
:
5228 dump_sections
= init_section_add (optarg
, dump_sections
,
5232 case OPTION_ADD_SYMBOL
:
5235 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5237 newsym
->next
= NULL
;
5238 s
= strchr (optarg
, '=');
5240 fatal (_("bad format for %s"), "--add-symbol");
5241 t
= strchr (s
+ 1, ':');
5243 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5246 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5247 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5251 newsym
->section
= NULL
;
5252 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5256 t
= strchr (t
+ 1, ',');
5257 newsym
->othersym
= NULL
;
5259 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5261 newsym
->flags
= BSF_GLOBAL
;
5263 /* Keep 'othersym' symbols at the front of the list. */
5264 if (newsym
->othersym
)
5266 newsym
->next
= add_sym_list
;
5268 add_sym_tail
= &newsym
->next
;
5269 add_sym_list
= newsym
;
5273 *add_sym_tail
= newsym
;
5274 add_sym_tail
= &newsym
->next
;
5280 case OPTION_CHANGE_START
:
5281 change_start
= parse_vma (optarg
, "--change-start");
5284 case OPTION_CHANGE_SECTION_ADDRESS
:
5285 case OPTION_CHANGE_SECTION_LMA
:
5286 case OPTION_CHANGE_SECTION_VMA
:
5288 struct section_list
* p
;
5289 unsigned int context
= 0;
5293 char *option
= NULL
;
5298 case OPTION_CHANGE_SECTION_ADDRESS
:
5299 option
= "--change-section-address";
5300 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5302 case OPTION_CHANGE_SECTION_LMA
:
5303 option
= "--change-section-lma";
5304 context
= SECTION_CONTEXT_ALTER_LMA
;
5306 case OPTION_CHANGE_SECTION_VMA
:
5307 option
= "--change-section-vma";
5308 context
= SECTION_CONTEXT_ALTER_VMA
;
5312 s
= strchr (optarg
, '=');
5315 s
= strchr (optarg
, '+');
5318 s
= strchr (optarg
, '-');
5320 fatal (_("bad format for %s"), option
);
5325 /* Correct the context. */
5328 case OPTION_CHANGE_SECTION_ADDRESS
:
5329 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5331 case OPTION_CHANGE_SECTION_LMA
:
5332 context
= SECTION_CONTEXT_SET_LMA
;
5334 case OPTION_CHANGE_SECTION_VMA
:
5335 context
= SECTION_CONTEXT_SET_VMA
;
5341 name
= (char *) xmalloc (len
+ 1);
5342 strncpy (name
, optarg
, len
);
5345 p
= find_section_list (name
, TRUE
, context
);
5347 val
= parse_vma (s
+ 1, option
);
5353 case OPTION_CHANGE_SECTION_ADDRESS
:
5357 case OPTION_CHANGE_SECTION_LMA
:
5361 case OPTION_CHANGE_SECTION_VMA
:
5368 case OPTION_CHANGE_ADDRESSES
:
5369 change_section_address
= parse_vma (optarg
, "--change-addresses");
5370 change_start
= change_section_address
;
5373 case OPTION_CHANGE_WARNINGS
:
5377 case OPTION_CHANGE_LEADING_CHAR
:
5378 change_leading_char
= TRUE
;
5381 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5384 if (strcasecmp (optarg
, "none") == 0)
5385 do_debug_sections
= decompress
;
5386 else if (strcasecmp (optarg
, "zlib") == 0)
5387 do_debug_sections
= compress_zlib
;
5388 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5389 do_debug_sections
= compress_gnu_zlib
;
5390 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5391 do_debug_sections
= compress_gabi_zlib
;
5393 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5397 do_debug_sections
= compress
;
5400 case OPTION_DEBUGGING
:
5401 convert_debugging
= TRUE
;
5404 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5405 do_debug_sections
= decompress
;
5408 case OPTION_ELF_STT_COMMON
:
5409 if (strcasecmp (optarg
, "yes") == 0)
5410 do_elf_stt_common
= elf_stt_common
;
5411 else if (strcasecmp (optarg
, "no") == 0)
5412 do_elf_stt_common
= no_elf_stt_common
;
5414 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5418 case OPTION_GAP_FILL
:
5420 bfd_vma gap_fill_vma
;
5422 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5423 gap_fill
= (bfd_byte
) gap_fill_vma
;
5424 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5428 sprintf_vma (buff
, gap_fill_vma
);
5430 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5433 gap_fill_set
= TRUE
;
5437 case OPTION_NO_CHANGE_WARNINGS
:
5438 change_warn
= FALSE
;
5442 pad_to
= parse_vma (optarg
, "--pad-to");
5446 case OPTION_REMOVE_LEADING_CHAR
:
5447 remove_leading_char
= TRUE
;
5450 case OPTION_REDEFINE_SYM
:
5452 /* Insert this redefinition onto redefine_specific_htab. */
5456 const char *nextarg
;
5457 char *source
, *target
;
5459 s
= strchr (optarg
, '=');
5461 fatal (_("bad format for %s"), "--redefine-sym");
5464 source
= (char *) xmalloc (len
+ 1);
5465 strncpy (source
, optarg
, len
);
5469 len
= strlen (nextarg
);
5470 target
= (char *) xmalloc (len
+ 1);
5471 strcpy (target
, nextarg
);
5473 add_redefine_and_check ("--redefine-sym", source
, target
);
5480 case OPTION_REDEFINE_SYMS
:
5481 add_redefine_syms_file (optarg
);
5484 case OPTION_SET_SECTION_FLAGS
:
5486 struct section_list
*p
;
5491 s
= strchr (optarg
, '=');
5493 fatal (_("bad format for %s"), "--set-section-flags");
5496 name
= (char *) xmalloc (len
+ 1);
5497 strncpy (name
, optarg
, len
);
5500 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5502 p
->flags
= parse_flags (s
+ 1);
5506 case OPTION_SET_SECTION_ALIGNMENT
:
5508 struct section_list
*p
;
5514 s
= strchr (optarg
, '=');
5516 fatal (_("bad format for --set-section-alignment: argument needed"));
5518 align
= atoi (s
+ 1);
5520 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5522 /* Convert integer alignment into a power-of-two alignment. */
5524 while ((align
& 1) == 0)
5531 /* Number has more than on 1, i.e. wasn't a power of 2. */
5532 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5534 /* Add the alignment setting to the section list. */
5536 name
= (char *) xmalloc (len
+ 1);
5537 strncpy (name
, optarg
, len
);
5540 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5542 p
->alignment
= palign
;
5546 case OPTION_RENAME_SECTION
:
5549 const char *eq
, *fl
;
5554 eq
= strchr (optarg
, '=');
5556 fatal (_("bad format for %s"), "--rename-section");
5560 fatal (_("bad format for %s"), "--rename-section");
5562 old_name
= (char *) xmalloc (len
+ 1);
5563 strncpy (old_name
, optarg
, len
);
5567 fl
= strchr (eq
, ',');
5570 flags
= parse_flags (fl
+ 1);
5580 fatal (_("bad format for %s"), "--rename-section");
5582 new_name
= (char *) xmalloc (len
+ 1);
5583 strncpy (new_name
, eq
, len
);
5586 add_section_rename (old_name
, new_name
, flags
);
5590 case OPTION_SET_START
:
5591 set_start
= parse_vma (optarg
, "--set-start");
5592 set_start_set
= TRUE
;
5595 case OPTION_SREC_LEN
:
5596 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5599 case OPTION_SREC_FORCES3
:
5600 _bfd_srec_forceS3
= TRUE
;
5603 case OPTION_STRIP_SYMBOLS
:
5604 add_specific_symbols (optarg
, strip_specific_htab
,
5605 &strip_specific_buffer
);
5608 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5609 add_specific_symbols (optarg
, strip_unneeded_htab
,
5610 &strip_unneeded_buffer
);
5613 case OPTION_KEEP_SYMBOLS
:
5614 add_specific_symbols (optarg
, keep_specific_htab
,
5615 &keep_specific_buffer
);
5618 case OPTION_LOCALIZE_HIDDEN
:
5619 localize_hidden
= TRUE
;
5622 case OPTION_LOCALIZE_SYMBOLS
:
5623 add_specific_symbols (optarg
, localize_specific_htab
,
5624 &localize_specific_buffer
);
5627 case OPTION_LONG_SECTION_NAMES
:
5628 if (!strcmp ("enable", optarg
))
5629 long_section_names
= ENABLE
;
5630 else if (!strcmp ("disable", optarg
))
5631 long_section_names
= DISABLE
;
5632 else if (!strcmp ("keep", optarg
))
5633 long_section_names
= KEEP
;
5635 fatal (_("unknown long section names option '%s'"), optarg
);
5638 case OPTION_GLOBALIZE_SYMBOLS
:
5639 use_globalize
= TRUE
;
5640 add_specific_symbols (optarg
, globalize_specific_htab
,
5641 &globalize_specific_buffer
);
5644 case OPTION_KEEPGLOBAL_SYMBOLS
:
5645 use_keep_global
= TRUE
;
5646 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5647 &keepglobal_specific_buffer
);
5650 case OPTION_WEAKEN_SYMBOLS
:
5651 add_specific_symbols (optarg
, weaken_specific_htab
,
5652 &weaken_specific_buffer
);
5655 case OPTION_ALT_MACH_CODE
:
5656 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5657 if (use_alt_mach_code
== 0)
5658 fatal (_("unable to parse alternative machine code"));
5661 case OPTION_PREFIX_SYMBOLS
:
5662 prefix_symbols_string
= optarg
;
5665 case OPTION_PREFIX_SECTIONS
:
5666 prefix_sections_string
= optarg
;
5669 case OPTION_PREFIX_ALLOC_SECTIONS
:
5670 prefix_alloc_sections_string
= optarg
;
5673 case OPTION_READONLY_TEXT
:
5674 bfd_flags_to_set
|= WP_TEXT
;
5675 bfd_flags_to_clear
&= ~WP_TEXT
;
5678 case OPTION_WRITABLE_TEXT
:
5679 bfd_flags_to_clear
|= WP_TEXT
;
5680 bfd_flags_to_set
&= ~WP_TEXT
;
5684 bfd_flags_to_set
|= D_PAGED
;
5685 bfd_flags_to_clear
&= ~D_PAGED
;
5689 bfd_flags_to_clear
|= D_PAGED
;
5690 bfd_flags_to_set
&= ~D_PAGED
;
5693 case OPTION_EXTRACT_DWO
:
5694 strip_symbols
= STRIP_NONDWO
;
5697 case OPTION_EXTRACT_SYMBOL
:
5698 extract_symbol
= TRUE
;
5701 case OPTION_REVERSE_BYTES
:
5703 int prev
= reverse_bytes
;
5705 reverse_bytes
= atoi (optarg
);
5706 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5707 fatal (_("number of bytes to reverse must be positive and even"));
5709 if (prev
&& prev
!= reverse_bytes
)
5710 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5715 case OPTION_FILE_ALIGNMENT
:
5716 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5722 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5724 || (*end
!= '.' && *end
!= '\0'))
5725 non_fatal (_("%s: invalid reserve value for --heap"),
5727 else if (*end
!= '\0')
5729 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5731 non_fatal (_("%s: invalid commit value for --heap"),
5737 case OPTION_IMAGE_BASE
:
5738 pe_image_base
= parse_vma (optarg
, "--image-base");
5741 case OPTION_PE_SECTION_ALIGNMENT
:
5742 pe_section_alignment
= parse_vma (optarg
,
5743 "--section-alignment");
5746 case OPTION_SUBSYSTEM
:
5747 set_pe_subsystem (optarg
);
5753 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5755 || (*end
!= '.' && *end
!= '\0'))
5756 non_fatal (_("%s: invalid reserve value for --stack"),
5758 else if (*end
!= '\0')
5760 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5762 non_fatal (_("%s: invalid commit value for --stack"),
5768 case OPTION_VERILOG_DATA_WIDTH
:
5769 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5770 if (VerilogDataWidth
< 1)
5771 fatal (_("verilog data width must be at least 1 byte"));
5775 /* We've been given a long option. */
5780 copy_usage (stdout
, 0);
5783 copy_usage (stderr
, 1);
5787 if (use_globalize
&& use_keep_global
)
5788 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5797 print_version ("objcopy");
5799 if (interleave
&& copy_byte
== -1)
5800 fatal (_("interleave start byte must be set with --byte"));
5802 if (copy_byte
>= interleave
)
5803 fatal (_("byte number must be less than interleave"));
5805 if (copy_width
> interleave
- copy_byte
)
5806 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5808 if (optind
== argc
|| optind
+ 2 < argc
)
5809 copy_usage (stderr
, 1);
5811 input_filename
= argv
[optind
];
5812 if (optind
+ 1 < argc
)
5813 output_filename
= argv
[optind
+ 1];
5815 default_deterministic ();
5817 /* Default is to strip no symbols. */
5818 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5819 strip_symbols
= STRIP_NONE
;
5821 if (output_target
== NULL
)
5822 output_target
= input_target
;
5824 /* Convert input EFI target to PEI target. */
5825 if (input_target
!= NULL
5826 && strncmp (input_target
, "efi-", 4) == 0)
5830 efi
= xstrdup (output_target
+ 4);
5831 if (strncmp (efi
, "bsdrv-", 6) == 0
5832 || strncmp (efi
, "rtdrv-", 6) == 0)
5834 else if (strncmp (efi
, "app-", 4) != 0)
5835 fatal (_("unknown input EFI target: %s"), input_target
);
5838 convert_efi_target (efi
);
5841 /* Convert output EFI target to PEI target. */
5842 if (output_target
!= NULL
5843 && strncmp (output_target
, "efi-", 4) == 0)
5847 efi
= xstrdup (output_target
+ 4);
5848 if (strncmp (efi
, "app-", 4) == 0)
5850 if (pe_subsystem
== -1)
5851 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5853 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5855 if (pe_subsystem
== -1)
5856 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5859 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5861 if (pe_subsystem
== -1)
5862 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5866 fatal (_("unknown output EFI target: %s"), output_target
);
5868 if (pe_file_alignment
== (bfd_vma
) -1)
5869 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5870 if (pe_section_alignment
== (bfd_vma
) -1)
5871 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5873 output_target
= efi
;
5874 convert_efi_target (efi
);
5878 if (stat (input_filename
, & statbuf
) < 0)
5879 fatal (_("warning: could not locate '%s'. System error message: %s"),
5880 input_filename
, strerror (errno
));
5882 /* If there is no destination file, or the source and destination files
5883 are the same, then create a temp and rename the result into the input. */
5884 if (output_filename
== NULL
5885 || filename_cmp (input_filename
, output_filename
) == 0)
5886 tmpname
= make_tempname (input_filename
);
5888 tmpname
= output_filename
;
5890 if (tmpname
== NULL
)
5891 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5892 input_filename
, strerror (errno
));
5894 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5898 set_times (tmpname
, &statbuf
);
5899 if (tmpname
!= output_filename
)
5900 status
= (smart_rename (tmpname
, input_filename
,
5901 preserve_dates
) != 0);
5904 unlink_if_ordinary (tmpname
);
5906 if (tmpname
!= output_filename
)
5911 struct section_list
*p
;
5913 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5917 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5921 sprintf_vma (buff
, p
->vma_val
);
5923 /* xgettext:c-format */
5924 non_fatal (_("%s %s%c0x%s never used"),
5925 "--change-section-vma",
5927 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5931 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5935 sprintf_vma (buff
, p
->lma_val
);
5937 /* xgettext:c-format */
5938 non_fatal (_("%s %s%c0x%s never used"),
5939 "--change-section-lma",
5941 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5948 if (strip_specific_buffer
)
5949 free (strip_specific_buffer
);
5951 if (strip_unneeded_buffer
)
5952 free (strip_unneeded_buffer
);
5954 if (keep_specific_buffer
)
5955 free (keep_specific_buffer
);
5957 if (localize_specific_buffer
)
5958 free (globalize_specific_buffer
);
5960 if (globalize_specific_buffer
)
5961 free (globalize_specific_buffer
);
5963 if (keepglobal_specific_buffer
)
5964 free (keepglobal_specific_buffer
);
5966 if (weaken_specific_buffer
)
5967 free (weaken_specific_buffer
);
5973 main (int argc
, char *argv
[])
5975 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5976 setlocale (LC_MESSAGES
, "");
5978 #if defined (HAVE_SETLOCALE)
5979 setlocale (LC_CTYPE
, "");
5981 bindtextdomain (PACKAGE
, LOCALEDIR
);
5982 textdomain (PACKAGE
);
5984 program_name
= argv
[0];
5985 xmalloc_set_program_name (program_name
);
5987 START_PROGRESS (program_name
, 0);
5989 expandargv (&argc
, &argv
);
5991 strip_symbols
= STRIP_UNDEF
;
5992 discard_locals
= LOCALS_UNDEF
;
5994 if (bfd_init () != BFD_INIT_MAGIC
)
5995 fatal (_("fatal error: libbfd ABI mismatch"));
5996 set_default_bfd_target ();
6000 int i
= strlen (program_name
);
6001 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6002 /* Drop the .exe suffix, if any. */
6003 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6006 program_name
[i
] = '\0';
6009 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6012 create_symbol_htabs ();
6015 bfd_set_error_program_name (argv
[0]);
6018 strip_main (argc
, argv
);
6020 copy_main (argc
, argv
);
6022 END_PROGRESS (program_name
);