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
);
2782 if (osympp
!= isympp
)
2788 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2791 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2795 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2796 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2799 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2802 /* PR 17512: file: d6323821
2803 If the symbol table could not be loaded do not pretend that we have
2804 any symbols. This trips us up later on when we load the relocs. */
2808 osympp
= isympp
= NULL
;
2811 /* BFD mandates that all output sections be created and sizes set before
2812 any output is done. Thus, we traverse all sections multiple times. */
2813 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2815 if (!extract_symbol
)
2816 setup_bfd_headers (ibfd
, obfd
);
2818 if (add_sections
!= NULL
)
2820 struct section_add
*padd
;
2821 struct section_list
*pset
;
2823 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2827 pset
= find_section_list (padd
->name
, FALSE
,
2828 SECTION_CONTEXT_SET_FLAGS
);
2831 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2832 flags
= check_new_section_flags (flags
, obfd
, padd
->name
);
2835 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2837 /* bfd_make_section_with_flags() does not return very helpful
2838 error codes, so check for the most likely user error first. */
2839 if (bfd_get_section_by_name (obfd
, padd
->name
))
2841 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2842 _("can't add section '%s'"), padd
->name
);
2847 /* We use LINKER_CREATED here so that the backend hooks
2848 will create any special section type information,
2849 instead of presuming we know what we're doing merely
2850 because we set the flags. */
2851 padd
->section
= bfd_make_section_with_flags
2852 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2853 if (padd
->section
== NULL
)
2855 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2856 _("can't create section `%s'"),
2862 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2864 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2868 pset
= find_section_list (padd
->name
, FALSE
,
2869 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2871 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2873 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2877 pset
= find_section_list (padd
->name
, FALSE
,
2878 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2881 padd
->section
->lma
= pset
->lma_val
;
2883 if (!bfd_set_section_alignment
2884 (padd
->section
, bfd_section_alignment (padd
->section
)))
2886 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2893 if (update_sections
!= NULL
)
2895 struct section_add
*pupdate
;
2897 for (pupdate
= update_sections
;
2899 pupdate
= pupdate
->next
)
2901 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2902 if (pupdate
->section
== NULL
)
2904 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2908 osec
= pupdate
->section
->output_section
;
2909 if (!bfd_set_section_size (osec
, pupdate
->size
))
2911 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2917 merged_note_section
* merged_note_sections
= NULL
;
2920 /* This palaver is necessary because we must set the output
2921 section size first, before its contents are ready. */
2922 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2924 if (! is_mergeable_note_section (ibfd
, osec
))
2927 /* If the section is going to be completly deleted then
2928 do not bother to merge it. */
2929 if (osec
->output_section
== NULL
)
2932 bfd_size_type size
= bfd_section_size (osec
);
2936 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2937 _("warning: note section is empty"));
2941 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2942 merged
->contents
= NULL
;
2943 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2945 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2946 _("warning: could not load note section"));
2951 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2954 /* FIXME: Once we have read the contents in, we must write
2955 them out again. So even if the mergeing has achieved
2956 nothing we still add this entry to the merge list. */
2958 if (size
!= merged
->size
2959 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2961 bfd_nonfatal_message (NULL
, obfd
, osec
,
2962 _("warning: failed to set merged notes size"));
2963 free (merged
->contents
);
2968 /* Add section to list of merged sections. */
2970 merged
->next
= merged_note_sections
;
2971 merged_note_sections
= merged
;
2975 if (dump_sections
!= NULL
)
2977 struct section_add
* pdump
;
2979 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2981 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2984 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2985 _("can't dump section '%s' - it does not exist"),
2990 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
2992 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2993 _("can't dump section - it has no contents"));
2997 bfd_size_type size
= bfd_section_size (osec
);
3000 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3001 _("can't dump section - it is empty"));
3006 f
= fopen (pdump
->filename
, FOPEN_WB
);
3009 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3010 _("could not open section dump file"));
3015 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3017 if (fwrite (contents
, 1, size
, f
) != size
)
3019 non_fatal (_("error writing section contents to %s (error: %s)"),
3028 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3029 _("could not retrieve section contents"));
3036 if (gnu_debuglink_filename
!= NULL
)
3038 /* PR 15125: Give a helpful warning message if
3039 the debuglink section already exists, and
3040 allow the rest of the copy to complete. */
3041 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3043 non_fatal (_("%s: debuglink section already exists"),
3044 bfd_get_filename (obfd
));
3045 gnu_debuglink_filename
= NULL
;
3049 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3050 (obfd
, gnu_debuglink_filename
);
3052 if (gnu_debuglink_section
== NULL
)
3054 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3055 _("cannot create debug link section `%s'"),
3056 gnu_debuglink_filename
);
3060 /* Special processing for PE format files. We
3061 have no way to distinguish PE from COFF here. */
3062 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3064 bfd_vma debuglink_vma
;
3065 asection
* highest_section
;
3067 /* The PE spec requires that all sections be adjacent and sorted
3068 in ascending order of VMA. It also specifies that debug
3069 sections should be last. This is despite the fact that debug
3070 sections are not loaded into memory and so in theory have no
3073 This means that the debuglink section must be given a non-zero
3074 VMA which makes it contiguous with other debug sections. So
3075 walk the current section list, find the section with the
3076 highest VMA and start the debuglink section after that one. */
3077 for (osec
= obfd
->sections
, highest_section
= NULL
;
3081 && (highest_section
== NULL
3082 || osec
->vma
> highest_section
->vma
))
3083 highest_section
= osec
;
3085 if (highest_section
)
3086 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3087 + highest_section
->size
,
3088 /* FIXME: We ought to be using
3089 COFF_PAGE_SIZE here or maybe
3090 bfd_section_alignment() (if it
3091 was set) but since this is for PE
3092 and we know the required alignment
3093 it is easier just to hard code it. */
3096 /* Umm, not sure what to do in this case. */
3097 debuglink_vma
= 0x1000;
3099 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3104 num_sec
= bfd_count_sections (obfd
);
3106 && (gap_fill_set
|| pad_to_set
))
3110 /* We must fill in gaps between the sections and/or we must pad
3111 the last section to a specified address. We do this by
3112 grabbing a list of the sections, sorting them by VMA, and
3113 increasing the section sizes as required to fill the gaps.
3114 We write out the gap contents below. */
3116 osections
= xmalloc (num_sec
* sizeof (*osections
));
3118 bfd_map_over_sections (obfd
, get_sections
, &set
);
3120 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3122 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3123 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3127 for (i
= 0; i
< num_sec
- 1; i
++)
3130 bfd_size_type size
; /* Octets. */
3131 bfd_vma gap_start
, gap_stop
; /* Octets. */
3132 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3133 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3135 flags
= bfd_section_flags (osections
[i
]);
3136 if ((flags
& SEC_HAS_CONTENTS
) == 0
3137 || (flags
& SEC_LOAD
) == 0)
3140 size
= bfd_section_size (osections
[i
]);
3141 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3142 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3143 if (gap_start
< gap_stop
)
3145 if (!bfd_set_section_size (osections
[i
],
3146 size
+ (gap_stop
- gap_start
)))
3148 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3149 _("Can't fill gap after section"));
3153 gaps
[i
] = gap_stop
- gap_start
;
3154 if (max_gap
< gap_stop
- gap_start
)
3155 max_gap
= gap_stop
- gap_start
;
3162 bfd_vma lma
; /* Octets. */
3163 bfd_size_type size
; /* Octets. */
3164 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3165 bfd_vma _pad_to
= pad_to
* opb
;
3167 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3168 size
= bfd_section_size (osections
[num_sec
- 1]);
3169 if (lma
+ size
< _pad_to
)
3171 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3173 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3174 _("can't add padding"));
3179 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3180 if (max_gap
< _pad_to
- (lma
+ size
))
3181 max_gap
= _pad_to
- (lma
+ size
);
3187 /* Symbol filtering must happen after the output sections
3188 have been created, but before their contents are set. */
3190 if (convert_debugging
)
3191 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3193 if (strip_symbols
== STRIP_DEBUG
3194 || strip_symbols
== STRIP_ALL
3195 || strip_symbols
== STRIP_UNNEEDED
3196 || strip_symbols
== STRIP_NONDEBUG
3197 || strip_symbols
== STRIP_DWO
3198 || strip_symbols
== STRIP_NONDWO
3199 || discard_locals
!= LOCALS_UNDEF
3201 || htab_elements (strip_specific_htab
) != 0
3202 || htab_elements (keep_specific_htab
) != 0
3203 || htab_elements (localize_specific_htab
) != 0
3204 || htab_elements (globalize_specific_htab
) != 0
3205 || htab_elements (keepglobal_specific_htab
) != 0
3206 || htab_elements (weaken_specific_htab
) != 0
3207 || htab_elements (redefine_specific_htab
) != 0
3208 || prefix_symbols_string
3211 || convert_debugging
3212 || change_leading_char
3213 || remove_leading_char
3214 || section_rename_list
3218 /* Mark symbols used in output relocations so that they
3219 are kept, even if they are local labels or static symbols.
3221 Note we iterate over the input sections examining their
3222 relocations since the relocations for the output sections
3223 haven't been set yet. mark_symbols_used_in_relocations will
3224 ignore input sections which have no corresponding output
3226 if (strip_symbols
!= STRIP_ALL
)
3228 bfd_set_error (bfd_error_no_error
);
3229 bfd_map_over_sections (ibfd
,
3230 mark_symbols_used_in_relocations
,
3232 if (bfd_get_error () != bfd_error_no_error
)
3239 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3240 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3243 if (convert_debugging
&& dhandle
!= NULL
)
3247 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3250 dhandle
= NULL
; /* Paranoia... */
3259 bfd_set_symtab (obfd
, osympp
, symcount
);
3261 /* This has to happen before section positions are set. */
3262 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3264 /* This has to happen after the symbol table has been set. */
3265 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3267 if (add_sections
!= NULL
)
3269 struct section_add
*padd
;
3271 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3273 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3276 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3282 if (update_sections
!= NULL
)
3284 struct section_add
*pupdate
;
3286 for (pupdate
= update_sections
;
3288 pupdate
= pupdate
->next
)
3290 osec
= pupdate
->section
->output_section
;
3291 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3294 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3300 if (merged_note_sections
!= NULL
)
3302 merged_note_section
* merged
= NULL
;
3304 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3306 if (! is_mergeable_note_section (obfd
, osec
))
3310 merged
= merged_note_sections
;
3312 /* It is likely that output sections are in the same order
3313 as the input sections, but do not assume that this is
3315 if (strcmp (bfd_section_name (merged
->sec
),
3316 bfd_section_name (osec
)) != 0)
3318 for (merged
= merged_note_sections
;
3320 merged
= merged
->next
)
3321 if (strcmp (bfd_section_name (merged
->sec
),
3322 bfd_section_name (osec
)) == 0)
3327 bfd_nonfatal_message
3329 _("error: failed to locate merged notes"));
3334 if (merged
->contents
== NULL
)
3336 bfd_nonfatal_message
3338 _("error: failed to merge notes"));
3342 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3345 bfd_nonfatal_message
3347 _("error: failed to copy merged notes into output"));
3351 merged
= merged
->next
;
3354 /* Free the memory. */
3355 merged_note_section
* next
;
3356 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3358 next
= merged
->next
;
3359 free (merged
->contents
);
3363 else if (merge_notes
&& ! is_strip
)
3364 non_fatal (_("%s: Could not find any mergeable note sections"),
3365 bfd_get_filename (ibfd
));
3367 if (gnu_debuglink_filename
!= NULL
)
3369 if (! bfd_fill_in_gnu_debuglink_section
3370 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3372 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3373 _("cannot fill debug link section `%s'"),
3374 gnu_debuglink_filename
);
3383 /* Fill in the gaps. */
3386 buf
= (bfd_byte
*) xmalloc (max_gap
);
3387 memset (buf
, gap_fill
, max_gap
);
3389 for (i
= 0; i
< num_sec
; i
++)
3397 off
= bfd_section_size (osections
[i
]) - left
;
3408 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3411 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3427 /* Allow the BFD backend to copy any private data it understands
3428 from the input BFD to the output BFD. This is done last to
3429 permit the routine to look at the filtered symbol table, which is
3430 important for the ECOFF code at least. */
3431 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3433 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3434 _("error copying private BFD data"));
3438 /* Switch to the alternate machine code. We have to do this at the
3439 very end, because we only initialize the header when we create
3440 the first section. */
3441 if (use_alt_mach_code
!= 0)
3443 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3445 non_fatal (_("this target does not support %lu alternative machine codes"),
3447 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3449 non_fatal (_("treating that number as an absolute e_machine value instead"));
3450 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3453 non_fatal (_("ignoring the alternative value"));
3460 /* Read each archive element in turn from IBFD, copy the
3461 contents to temp file, and keep the temp file handle.
3462 If 'force_output_target' is TRUE then make sure that
3463 all elements in the new archive are of the type
3467 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3468 bfd_boolean force_output_target
,
3469 const bfd_arch_info_type
*input_arch
)
3473 struct name_list
*next
;
3477 bfd
**ptr
= &obfd
->archive_head
;
3480 const char *filename
;
3482 /* PR 24281: It is not clear what should happen when copying a thin archive.
3483 One part is straight forward - if the output archive is in a different
3484 directory from the input archive then any relative paths in the library
3485 should be adjusted to the new location. But if any transformation
3486 options are active (eg strip, rename, add, etc) then the implication is
3487 that these should be applied to the files pointed to by the archive.
3488 But since objcopy is not destructive, this means that new files must be
3489 created, and there is no guidance for the names of the new files. (Plus
3490 this conflicts with one of the goals of thin libraries - only taking up
3491 a minimal amount of space in the file system).
3493 So for now we fail if an attempt is made to copy such libraries. */
3494 if (ibfd
->is_thin_archive
)
3497 bfd_set_error (bfd_error_invalid_operation
);
3498 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3499 _("sorry: copying thin archives is not currently supported"));
3503 /* Make a temp directory to hold the contents. */
3504 dir
= make_tempdir (bfd_get_filename (obfd
));
3506 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3509 if (strip_symbols
== STRIP_ALL
)
3510 obfd
->has_armap
= FALSE
;
3512 obfd
->has_armap
= ibfd
->has_armap
;
3513 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3516 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3520 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3522 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3525 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3526 goto cleanup_and_exit
;
3529 while (!status
&& this_element
!= NULL
)
3535 int stat_status
= 0;
3536 bfd_boolean del
= TRUE
;
3537 bfd_boolean ok_object
;
3539 /* PR binutils/17533: Do not allow directory traversal
3540 outside of the current directory tree by archive members. */
3541 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3543 non_fatal (_("illegal pathname found in archive member: %s"),
3544 bfd_get_filename (this_element
));
3546 goto cleanup_and_exit
;
3549 /* Create an output file for this member. */
3550 output_name
= concat (dir
, "/",
3551 bfd_get_filename (this_element
), (char *) 0);
3553 /* If the file already exists, make another temp dir. */
3554 if (stat (output_name
, &buf
) >= 0)
3556 char * tmpdir
= make_tempdir (output_name
);
3561 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3564 goto cleanup_and_exit
;
3567 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3572 output_name
= concat (tmpdir
, "/",
3573 bfd_get_filename (this_element
), (char *) 0);
3578 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3580 if (stat_status
!= 0)
3581 non_fatal (_("internal stat error on %s"),
3582 bfd_get_filename (this_element
));
3585 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3586 l
->name
= output_name
;
3591 ok_object
= bfd_check_format (this_element
, bfd_object
);
3593 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3594 _("Unable to recognise the format of file"));
3596 /* PR binutils/3110: Cope with archives
3597 containing multiple target types. */
3598 if (force_output_target
|| !ok_object
)
3599 output_bfd
= bfd_openw (output_name
, output_target
);
3601 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3603 if (output_bfd
== NULL
)
3605 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3607 goto cleanup_and_exit
;
3612 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3614 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3615 /* Try again as an unknown object file. */
3617 else if (!bfd_close (output_bfd
))
3619 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3620 /* Error in new object file. Don't change archive. */
3627 del
= !copy_unknown_object (this_element
, output_bfd
);
3628 if (!bfd_close_all_done (output_bfd
))
3630 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3631 /* Error in new object file. Don't change archive. */
3638 unlink (output_name
);
3643 if (preserve_dates
&& stat_status
== 0)
3644 set_times (output_name
, &buf
);
3646 /* Open the newly output file and attach to our list. */
3647 output_bfd
= bfd_openr (output_name
, output_target
);
3649 l
->obfd
= output_bfd
;
3652 ptr
= &output_bfd
->archive_next
;
3654 last_element
= this_element
;
3656 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3658 bfd_close (last_element
);
3663 filename
= bfd_get_filename (obfd
);
3664 if (!bfd_close (obfd
))
3667 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3670 filename
= bfd_get_filename (ibfd
);
3671 if (!bfd_close (ibfd
))
3674 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3678 /* Delete all the files that we opened. */
3680 struct name_list
* next
;
3682 for (l
= list
; l
!= NULL
; l
= next
)
3684 if (l
->obfd
== NULL
)
3688 bfd_close (l
->obfd
);
3700 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3702 /* This is only relevant to Coff targets. */
3703 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3706 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3707 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3708 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3712 /* The top-level control. */
3715 copy_file (const char *input_filename
, const char *output_filename
,
3716 const char *input_target
, const char *output_target
,
3717 const bfd_arch_info_type
*input_arch
)
3720 char **obj_matching
;
3721 char **core_matching
;
3722 off_t size
= get_file_size (input_filename
);
3727 non_fatal (_("error: the input file '%s' is empty"),
3733 /* To allow us to do "strip *" without dying on the first
3734 non-object file, failures are nonfatal. */
3735 ibfd
= bfd_openr (input_filename
, input_target
);
3738 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3743 switch (do_debug_sections
)
3747 case compress_gnu_zlib
:
3748 case compress_gabi_zlib
:
3749 ibfd
->flags
|= BFD_COMPRESS
;
3750 /* Don't check if input is ELF here since this information is
3751 only available after bfd_check_format_matches is called. */
3752 if (do_debug_sections
!= compress_gnu_zlib
)
3753 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3756 ibfd
->flags
|= BFD_DECOMPRESS
;
3762 switch (do_elf_stt_common
)
3764 case elf_stt_common
:
3765 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3768 case no_elf_stt_common
:
3769 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3775 if (bfd_check_format (ibfd
, bfd_archive
))
3777 bfd_boolean force_output_target
;
3780 /* bfd_get_target does not return the correct value until
3781 bfd_check_format succeeds. */
3782 if (output_target
== NULL
)
3784 output_target
= bfd_get_target (ibfd
);
3785 force_output_target
= FALSE
;
3788 force_output_target
= TRUE
;
3790 obfd
= bfd_openw (output_filename
, output_target
);
3793 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3798 if (gnu_debuglink_filename
!= NULL
)
3800 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3801 bfd_get_filename (ibfd
));
3802 gnu_debuglink_filename
= NULL
;
3805 /* This is a no-op on non-Coff targets. */
3806 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3808 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3810 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3815 /* bfd_get_target does not return the correct value until
3816 bfd_check_format succeeds. */
3817 if (output_target
== NULL
)
3818 output_target
= bfd_get_target (ibfd
);
3820 obfd
= bfd_openw (output_filename
, output_target
);
3823 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3827 /* This is a no-op on non-Coff targets. */
3828 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3830 if (! copy_object (ibfd
, obfd
, input_arch
))
3833 /* PR 17512: file: 0f15796a.
3834 If the file could not be copied it may not be in a writeable
3835 state. So use bfd_close_all_done to avoid the possibility of
3836 writing uninitialised data into the file. */
3837 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3840 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3844 if (!bfd_close (ibfd
))
3847 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3853 bfd_error_type obj_error
= bfd_get_error ();
3854 bfd_error_type core_error
;
3856 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3858 /* This probably can't happen.. */
3859 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3860 free (obj_matching
);
3864 core_error
= bfd_get_error ();
3865 /* Report the object error in preference to the core error. */
3866 if (obj_error
!= core_error
)
3867 bfd_set_error (obj_error
);
3869 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3871 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3873 list_matching_formats (obj_matching
);
3874 free (obj_matching
);
3876 if (core_error
== bfd_error_file_ambiguously_recognized
)
3878 list_matching_formats (core_matching
);
3879 free (core_matching
);
3886 /* Add a name to the section renaming list. */
3889 add_section_rename (const char * old_name
, const char * new_name
,
3892 section_rename
* srename
;
3894 /* Check for conflicts first. */
3895 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3896 if (strcmp (srename
->old_name
, old_name
) == 0)
3898 /* Silently ignore duplicate definitions. */
3899 if (strcmp (srename
->new_name
, new_name
) == 0
3900 && srename
->flags
== flags
)
3903 fatal (_("Multiple renames of section %s"), old_name
);
3906 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3908 srename
->old_name
= old_name
;
3909 srename
->new_name
= new_name
;
3910 srename
->flags
= flags
;
3911 srename
->next
= section_rename_list
;
3913 section_rename_list
= srename
;
3916 /* Check the section rename list for a new name of the input section
3917 called OLD_NAME. Returns the new name if one is found and sets
3918 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3921 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3923 const section_rename
*srename
;
3925 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3926 if (strcmp (srename
->old_name
, old_name
) == 0)
3928 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3929 *returned_flags
= srename
->flags
;
3931 return srename
->new_name
;
3937 /* Once each of the sections is copied, we may still need to do some
3938 finalization work for private section headers. Do that here. */
3941 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3943 /* Allow the BFD backend to copy any private data it understands
3944 from the input section to the output section. */
3945 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3948 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3949 _("error in private header data"));
3953 /* All went well. */
3957 /* Create a section in OBFD with the same
3958 name and attributes as ISECTION in IBFD. */
3961 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3963 bfd
*obfd
= (bfd
*) obfdarg
;
3964 struct section_list
*p
;
3972 const char * new_name
;
3973 char *prefix
= NULL
;
3974 bfd_boolean make_nobits
;
3975 unsigned int alignment
;
3977 if (is_strip_section (ibfd
, isection
))
3980 /* Get the, possibly new, name of the output section. */
3981 name
= bfd_section_name (isection
);
3982 flags
= bfd_section_flags (isection
);
3983 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3985 flags
&= bfd_applicable_section_flags (ibfd
);
3986 flags
&= bfd_applicable_section_flags (obfd
);
3988 new_name
= find_section_rename (name
, &flags
);
3989 if (new_name
!= name
)
3992 flags
= check_new_section_flags (flags
, obfd
, name
);
3995 /* Prefix sections. */
3996 if (prefix_alloc_sections_string
3997 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
3998 prefix
= prefix_alloc_sections_string
;
3999 else if (prefix_sections_string
)
4000 prefix
= prefix_sections_string
;
4006 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4012 make_nobits
= FALSE
;
4014 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4015 SECTION_CONTEXT_SET_FLAGS
);
4018 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4019 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4021 else if (strip_symbols
== STRIP_NONDEBUG
4022 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4023 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4025 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4026 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4030 /* Twiddle the input section flags so that it seems to
4031 elf.c:copy_private_bfd_data that section flags have not
4032 changed between input and output sections. This hack
4033 prevents wholesale rewriting of the program headers. */
4034 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4038 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4040 if (osection
== NULL
)
4042 err
= _("failed to create output section");
4047 elf_section_type (osection
) = SHT_NOBITS
;
4049 size
= bfd_section_size (isection
);
4050 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4052 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4053 else if (extract_symbol
)
4055 if (!bfd_set_section_size (osection
, size
))
4057 err
= _("failed to set size");
4061 vma
= bfd_section_vma (isection
);
4062 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4063 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4066 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4072 vma
+= change_section_address
;
4074 if (!bfd_set_section_vma (osection
, vma
))
4076 err
= _("failed to set vma");
4080 lma
= isection
->lma
;
4081 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4082 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4085 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4091 lma
+= change_section_address
;
4093 osection
->lma
= lma
;
4095 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4096 SECTION_CONTEXT_SET_ALIGNMENT
);
4098 alignment
= p
->alignment
;
4100 alignment
= bfd_section_alignment (isection
);
4102 /* FIXME: This is probably not enough. If we change the LMA we
4103 may have to recompute the header for the file as well. */
4104 if (!bfd_set_section_alignment (osection
, alignment
))
4106 err
= _("failed to set alignment");
4110 /* Copy merge entity size. */
4111 osection
->entsize
= isection
->entsize
;
4113 /* Copy compress status. */
4114 osection
->compress_status
= isection
->compress_status
;
4116 /* This used to be mangle_section; we do here to avoid using
4117 bfd_get_section_by_name since some formats allow multiple
4118 sections with the same name. */
4119 isection
->output_section
= osection
;
4120 isection
->output_offset
= 0;
4122 if ((isection
->flags
& SEC_GROUP
) != 0)
4124 asymbol
*gsym
= group_signature (isection
);
4128 gsym
->flags
|= BSF_KEEP
;
4129 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4130 elf_group_id (isection
) = gsym
;
4134 /* Allow the BFD backend to copy any private data it understands
4135 from the input section to the output section. */
4136 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4138 err
= _("failed to copy private data");
4142 /* All went well. */
4147 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4150 /* Return TRUE if input section ISECTION should be skipped. */
4153 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4159 /* If we have already failed earlier on,
4160 do not keep on generating complaints now. */
4167 if (is_strip_section (ibfd
, isection
))
4170 if (is_update_section (ibfd
, isection
))
4173 /* When merging a note section we skip the copying of the contents,
4174 but not the copying of the relocs associated with the contents. */
4175 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4178 flags
= bfd_section_flags (isection
);
4179 if ((flags
& SEC_GROUP
) != 0)
4182 osection
= isection
->output_section
;
4183 size
= bfd_section_size (isection
);
4185 if (size
== 0 || osection
== 0)
4191 /* Add section SECTION_PATTERN to the list of sections that will have their
4192 relocations removed. */
4195 handle_remove_relocations_option (const char *section_pattern
)
4197 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4200 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4201 otherwise return FALSE. If the user has requested that relocations be
4202 removed from a section that does not have relocations then this
4203 function will still return TRUE. */
4206 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4208 return (find_section_list (bfd_section_name (isection
), FALSE
,
4209 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4212 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4213 A special case is detected here, if the user asks to remove a relocation
4214 section (one starting with ".rela" or ".rel") then this removal must
4215 be done using a different technique in a relocatable object. */
4218 handle_remove_section_option (const char *section_pattern
)
4220 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4221 if (strncmp (section_pattern
, ".rel", 4) == 0)
4223 section_pattern
+= 4;
4224 if (*section_pattern
== 'a')
4226 if (*section_pattern
)
4227 handle_remove_relocations_option (section_pattern
);
4229 sections_removed
= TRUE
;
4232 /* Copy relocations in input section ISECTION of IBFD to an output
4233 section with the same name in OBFDARG. If stripping then don't
4234 copy any relocation info. */
4237 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4239 bfd
*obfd
= (bfd
*) obfdarg
;
4245 if (skip_section (ibfd
, isection
, FALSE
))
4248 osection
= isection
->output_section
;
4250 /* Core files and DWO files do not need to be relocated. */
4251 if (bfd_get_format (obfd
) == bfd_core
4252 || strip_symbols
== STRIP_NONDWO
4253 || discard_relocations (ibfd
, isection
))
4257 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4261 /* Do not complain if the target does not support relocations. */
4262 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4267 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4275 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4276 osection
->flags
&= ~SEC_RELOC
;
4280 if (isection
->orelocation
!= NULL
)
4282 /* Some other function has already set up the output relocs
4283 for us, so scan those instead of the default relocs. */
4284 relcount
= isection
->reloc_count
;
4285 relpp
= isection
->orelocation
;
4289 relpp
= (arelent
**) xmalloc (relsize
);
4290 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4294 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4295 _("relocation count is negative"));
4300 if (strip_symbols
== STRIP_ALL
)
4302 /* Remove relocations which are not in
4303 keep_strip_specific_list. */
4304 arelent
**temp_relpp
;
4305 long temp_relcount
= 0;
4308 temp_relpp
= (arelent
**) xmalloc (relsize
);
4309 for (i
= 0; i
< relcount
; i
++)
4311 /* PR 17512: file: 9e907e0c. */
4312 if (relpp
[i
]->sym_ptr_ptr
4314 && * relpp
[i
]->sym_ptr_ptr
)
4315 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4316 keep_specific_htab
))
4317 temp_relpp
[temp_relcount
++] = relpp
[i
];
4319 relcount
= temp_relcount
;
4320 if (isection
->orelocation
== NULL
)
4325 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4328 osection
->flags
&= ~SEC_RELOC
;
4334 /* Copy the data of input section ISECTION of IBFD
4335 to an output section with the same name in OBFD. */
4338 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4340 bfd
*obfd
= (bfd
*) obfdarg
;
4341 struct section_list
*p
;
4345 if (skip_section (ibfd
, isection
, TRUE
))
4348 osection
= isection
->output_section
;
4349 /* The output SHF_COMPRESSED section size is different from input if
4350 ELF classes of input and output aren't the same. We can't use
4351 the output section size since --interleave will shrink the output
4352 section. Size will be updated if the section is converted. */
4353 size
= bfd_section_size (isection
);
4355 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4356 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4358 bfd_byte
*memhunk
= NULL
;
4360 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4361 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4365 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4372 /* We don't handle leftover bytes (too many possible behaviors,
4373 and we don't know what the user wants). The section length
4374 must be a multiple of the number of bytes to swap. */
4375 if ((size
% reverse_bytes
) == 0)
4380 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4381 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4383 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4386 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4387 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4391 /* User must pad the section up in order to do this. */
4392 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4393 bfd_section_name (isection
), reverse_bytes
);
4398 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4399 char *from
= (char *) memhunk
+ copy_byte
;
4400 char *to
= (char *) memhunk
;
4401 char *end
= (char *) memhunk
+ size
;
4404 /* If the section address is not exactly divisible by the interleave,
4405 then we must bias the from address. If the copy_byte is less than
4406 the bias, then we must skip forward one interleave, and increment
4408 int extra
= isection
->lma
% interleave
;
4410 if (copy_byte
< extra
)
4413 for (; from
< end
; from
+= interleave
)
4414 for (i
= 0; i
< copy_width
; i
++)
4416 if (&from
[i
] >= end
)
4421 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4422 osection
->lma
/= interleave
;
4423 if (copy_byte
< extra
)
4427 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4430 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4436 else if ((p
= find_section_list (bfd_section_name (isection
),
4437 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4438 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4440 void *memhunk
= xmalloc (size
);
4442 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4443 flag--they can just remove the section entirely and add it
4444 back again. However, we do permit them to turn on the
4445 SEC_HAS_CONTENTS flag, and take it to mean that the section
4446 contents should be zeroed out. */
4448 memset (memhunk
, 0, size
);
4449 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4452 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4460 /* Get all the sections. This is used when --gap-fill or --pad-to is
4464 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4466 asection
***secppp
= (asection
***) secppparg
;
4468 **secppp
= osection
;
4472 /* Sort sections by LMA. This is called via qsort, and is used when
4473 --gap-fill or --pad-to is used. We force non loadable or empty
4474 sections to the front, where they are easier to ignore. */
4477 compare_section_lma (const void *arg1
, const void *arg2
)
4479 const asection
*sec1
= *(const asection
**) arg1
;
4480 const asection
*sec2
= *(const asection
**) arg2
;
4481 flagword flags1
, flags2
;
4483 /* Sort non loadable sections to the front. */
4484 flags1
= sec1
->flags
;
4485 flags2
= sec2
->flags
;
4486 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4487 || (flags1
& SEC_LOAD
) == 0)
4489 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4490 && (flags2
& SEC_LOAD
) != 0)
4495 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4496 || (flags2
& SEC_LOAD
) == 0)
4500 /* Sort sections by LMA. */
4501 if (sec1
->lma
> sec2
->lma
)
4503 if (sec1
->lma
< sec2
->lma
)
4506 /* Sort sections with the same LMA by size. */
4507 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4509 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4512 if (sec1
->id
> sec2
->id
)
4514 if (sec1
->id
< sec2
->id
)
4519 /* Mark all the symbols which will be used in output relocations with
4520 the BSF_KEEP flag so that those symbols will not be stripped.
4522 Ignore relocations which will not appear in the output file. */
4525 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4527 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4532 /* Ignore an input section with no corresponding output section. */
4533 if (isection
->output_section
== NULL
)
4536 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4539 /* Do not complain if the target does not support relocations. */
4540 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4542 bfd_fatal (bfd_get_filename (ibfd
));
4548 relpp
= (arelent
**) xmalloc (relsize
);
4549 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4551 bfd_fatal (bfd_get_filename (ibfd
));
4553 /* Examine each symbol used in a relocation. If it's not one of the
4554 special bfd section symbols, then mark it with BSF_KEEP. */
4555 for (i
= 0; i
< relcount
; i
++)
4557 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4558 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4559 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4560 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4561 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4562 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4563 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4570 /* Write out debugging information. */
4573 write_debugging_info (bfd
*obfd
, void *dhandle
,
4574 long *symcountp ATTRIBUTE_UNUSED
,
4575 asymbol
***symppp ATTRIBUTE_UNUSED
)
4577 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4578 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4580 bfd_byte
*syms
, *strings
= NULL
;
4581 bfd_size_type symsize
, stringsize
;
4582 asection
*stabsec
, *stabstrsec
;
4585 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4590 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4591 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4592 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4594 || stabstrsec
== NULL
4595 || !bfd_set_section_size (stabsec
, symsize
)
4596 || !bfd_set_section_size (stabstrsec
, stringsize
)
4597 || !bfd_set_section_alignment (stabsec
, 2)
4598 || !bfd_set_section_alignment (stabstrsec
, 0))
4600 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4601 _("can't create debugging section"));
4606 /* We can get away with setting the section contents now because
4607 the next thing the caller is going to do is copy over the
4608 real sections. We may someday have to split the contents
4609 setting out of this function. */
4610 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4611 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4614 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4615 _("can't set debugging section contents"));
4623 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4624 _("don't know how to write debugging information for %s"),
4625 bfd_get_target (obfd
));
4629 /* If neither -D nor -U was specified explicitly,
4630 then use the configured default. */
4632 default_deterministic (void)
4634 if (deterministic
< 0)
4635 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4639 strip_main (int argc
, char *argv
[])
4641 char *input_target
= NULL
;
4642 char *output_target
= NULL
;
4643 bfd_boolean show_version
= FALSE
;
4644 bfd_boolean formats_info
= FALSE
;
4647 char *output_file
= NULL
;
4648 bfd_boolean merge_notes_set
= FALSE
;
4650 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4651 strip_options
, (int *) 0)) != EOF
)
4656 input_target
= optarg
;
4659 output_target
= optarg
;
4662 input_target
= output_target
= optarg
;
4665 handle_remove_section_option (optarg
);
4667 case OPTION_KEEP_SECTION
:
4668 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4670 case OPTION_REMOVE_RELOCS
:
4671 handle_remove_relocations_option (optarg
);
4674 strip_symbols
= STRIP_ALL
;
4678 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4679 strip_symbols
= STRIP_DEBUG
;
4681 case OPTION_STRIP_DWO
:
4682 strip_symbols
= STRIP_DWO
;
4684 case OPTION_STRIP_UNNEEDED
:
4685 strip_symbols
= STRIP_UNNEEDED
;
4688 add_specific_symbol (optarg
, keep_specific_htab
);
4692 merge_notes_set
= TRUE
;
4694 case OPTION_NO_MERGE_NOTES
:
4695 merge_notes
= FALSE
;
4696 merge_notes_set
= TRUE
;
4699 add_specific_symbol (optarg
, strip_specific_htab
);
4702 output_file
= optarg
;
4705 preserve_dates
= TRUE
;
4708 deterministic
= TRUE
;
4711 deterministic
= FALSE
;
4714 discard_locals
= LOCALS_ALL
;
4717 discard_locals
= LOCALS_START_L
;
4723 show_version
= TRUE
;
4725 case OPTION_FORMATS_INFO
:
4726 formats_info
= TRUE
;
4728 case OPTION_ONLY_KEEP_DEBUG
:
4729 strip_symbols
= STRIP_NONDEBUG
;
4731 case OPTION_KEEP_FILE_SYMBOLS
:
4732 keep_file_symbols
= 1;
4735 /* We've been given a long option. */
4742 strip_usage (stdout
, 0);
4744 strip_usage (stderr
, 1);
4748 /* If the user has not expressly chosen to merge/not-merge ELF notes
4749 then enable the merging unless we are stripping debug or dwo info. */
4750 if (! merge_notes_set
4751 && (strip_symbols
== STRIP_UNDEF
4752 || strip_symbols
== STRIP_ALL
4753 || strip_symbols
== STRIP_UNNEEDED
4754 || strip_symbols
== STRIP_NONDEBUG
4755 || strip_symbols
== STRIP_NONDWO
))
4765 print_version ("strip");
4767 default_deterministic ();
4769 /* Default is to strip all symbols. */
4770 if (strip_symbols
== STRIP_UNDEF
4771 && discard_locals
== LOCALS_UNDEF
4772 && htab_elements (strip_specific_htab
) == 0)
4773 strip_symbols
= STRIP_ALL
;
4775 if (output_target
== NULL
)
4776 output_target
= input_target
;
4780 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4781 strip_usage (stderr
, 1);
4783 for (; i
< argc
; i
++)
4785 int hold_status
= status
;
4786 struct stat statbuf
;
4789 if (get_file_size (argv
[i
]) < 1)
4796 /* No need to check the return value of stat().
4797 It has already been checked in get_file_size(). */
4798 stat (argv
[i
], &statbuf
);
4800 if (output_file
== NULL
4801 || filename_cmp (argv
[i
], output_file
) == 0)
4802 tmpname
= make_tempname (argv
[i
]);
4804 tmpname
= output_file
;
4806 if (tmpname
== NULL
)
4808 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4809 _("could not create temporary file to hold stripped copy"));
4815 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4819 set_times (tmpname
, &statbuf
);
4820 if (output_file
!= tmpname
)
4821 status
= (smart_rename (tmpname
,
4822 output_file
? output_file
: argv
[i
],
4823 preserve_dates
) != 0);
4825 status
= hold_status
;
4828 unlink_if_ordinary (tmpname
);
4829 if (output_file
!= tmpname
)
4836 /* Set up PE subsystem. */
4839 set_pe_subsystem (const char *s
)
4841 const char *version
, *subsystem
;
4851 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4852 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4853 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4854 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4855 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4856 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4857 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4858 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4859 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4860 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4866 /* Check for the presence of a version number. */
4867 version
= strchr (s
, ':');
4868 if (version
== NULL
)
4872 int len
= version
- s
;
4876 version
= copy
+ 1 + len
;
4877 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4879 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4881 non_fatal (_("%s: bad version in PE subsystem"), s
);
4884 /* Check for numeric subsystem. */
4885 value
= (short) strtol (subsystem
, ©
, 0);
4888 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4889 if (v
[i
].value
== value
)
4891 pe_subsystem
= value
;
4892 set_def
= v
[i
].set_def
;
4898 /* Search for subsystem by name. */
4899 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4900 if (strcmp (subsystem
, v
[i
].name
) == 0)
4902 pe_subsystem
= v
[i
].value
;
4903 set_def
= v
[i
].set_def
;
4911 fatal (_("unknown PE subsystem: %s"), s
);
4916 if (pe_file_alignment
== (bfd_vma
) -1)
4917 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4918 if (pe_section_alignment
== (bfd_vma
) -1)
4919 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4923 free ((char *) subsystem
);
4926 /* Convert EFI target to PEI target. */
4929 convert_efi_target (char *efi
)
4935 if (strcmp (efi
+ 4, "ia32") == 0)
4937 /* Change ia32 to i386. */
4942 else if (strcmp (efi
+ 4, "x86_64") == 0)
4944 /* Change x86_64 to x86-64. */
4949 /* Allocate and return a pointer to a struct section_add, initializing the
4950 structure using ARG, a string in the format "sectionname=filename".
4951 The returned structure will have its next pointer set to NEXT. The
4952 OPTION field is the name of the command line option currently being
4953 parsed, and is only used if an error needs to be reported. */
4955 static struct section_add
*
4956 init_section_add (const char *arg
,
4957 struct section_add
*next
,
4960 struct section_add
*pa
;
4963 s
= strchr (arg
, '=');
4965 fatal (_("bad format for %s"), option
);
4967 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4968 pa
->name
= xstrndup (arg
, s
- arg
);
4969 pa
->filename
= s
+ 1;
4971 pa
->contents
= NULL
;
4977 /* Load the file specified in PA, allocating memory to hold the file
4978 contents, and store a pointer to the allocated memory in the contents
4979 field of PA. The size field of PA is also updated. All errors call
4983 section_add_load_file (struct section_add
*pa
)
4988 /* We don't use get_file_size so that we can do
4989 --add-section .note.GNU_stack=/dev/null
4990 get_file_size doesn't work on /dev/null. */
4992 f
= fopen (pa
->filename
, FOPEN_RB
);
4994 fatal (_("cannot open: %s: %s"),
4995 pa
->filename
, strerror (errno
));
4999 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5007 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5010 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5012 fatal (_("%s: fread failed"), pa
->filename
);
5023 copy_main (int argc
, char *argv
[])
5025 char *input_filename
= NULL
;
5026 char *output_filename
= NULL
;
5028 char *input_target
= NULL
;
5029 char *output_target
= NULL
;
5030 bfd_boolean show_version
= FALSE
;
5031 bfd_boolean change_warn
= TRUE
;
5032 bfd_boolean formats_info
= FALSE
;
5033 bfd_boolean use_globalize
= FALSE
;
5034 bfd_boolean use_keep_global
= FALSE
;
5036 struct stat statbuf
;
5037 const bfd_arch_info_type
*input_arch
= NULL
;
5039 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5040 copy_options
, (int *) 0)) != EOF
)
5045 copy_byte
= atoi (optarg
);
5047 fatal (_("byte number must be non-negative"));
5051 input_arch
= bfd_scan_arch (optarg
);
5052 if (input_arch
== NULL
)
5053 fatal (_("architecture %s unknown"), optarg
);
5059 interleave
= atoi (optarg
);
5061 fatal (_("interleave must be positive"));
5067 case OPTION_INTERLEAVE_WIDTH
:
5068 copy_width
= atoi (optarg
);
5070 fatal(_("interleave width must be positive"));
5074 case 's': /* "source" - 'I' is preferred */
5075 input_target
= optarg
;
5079 case 'd': /* "destination" - 'O' is preferred */
5080 output_target
= optarg
;
5084 input_target
= output_target
= optarg
;
5088 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5089 sections_copied
= TRUE
;
5093 handle_remove_section_option (optarg
);
5096 case OPTION_KEEP_SECTION
:
5097 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5100 case OPTION_REMOVE_RELOCS
:
5101 handle_remove_relocations_option (optarg
);
5105 strip_symbols
= STRIP_ALL
;
5109 strip_symbols
= STRIP_DEBUG
;
5112 case OPTION_STRIP_DWO
:
5113 strip_symbols
= STRIP_DWO
;
5116 case OPTION_STRIP_UNNEEDED
:
5117 strip_symbols
= STRIP_UNNEEDED
;
5120 case OPTION_ONLY_KEEP_DEBUG
:
5121 strip_symbols
= STRIP_NONDEBUG
;
5124 case OPTION_KEEP_FILE_SYMBOLS
:
5125 keep_file_symbols
= 1;
5128 case OPTION_ADD_GNU_DEBUGLINK
:
5129 long_section_names
= ENABLE
;
5130 gnu_debuglink_filename
= optarg
;
5134 add_specific_symbol (optarg
, keep_specific_htab
);
5140 case OPTION_NO_MERGE_NOTES
:
5141 merge_notes
= FALSE
;
5145 add_specific_symbol (optarg
, strip_specific_htab
);
5148 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5149 add_specific_symbol (optarg
, strip_unneeded_htab
);
5153 add_specific_symbol (optarg
, localize_specific_htab
);
5156 case OPTION_GLOBALIZE_SYMBOL
:
5157 use_globalize
= TRUE
;
5158 add_specific_symbol (optarg
, globalize_specific_htab
);
5162 use_keep_global
= TRUE
;
5163 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5167 add_specific_symbol (optarg
, weaken_specific_htab
);
5171 preserve_dates
= TRUE
;
5175 deterministic
= TRUE
;
5179 deterministic
= FALSE
;
5187 discard_locals
= LOCALS_ALL
;
5191 discard_locals
= LOCALS_START_L
;
5199 show_version
= TRUE
;
5202 case OPTION_FORMATS_INFO
:
5203 formats_info
= TRUE
;
5210 case OPTION_ADD_SECTION
:
5211 add_sections
= init_section_add (optarg
, add_sections
,
5213 section_add_load_file (add_sections
);
5216 case OPTION_UPDATE_SECTION
:
5217 update_sections
= init_section_add (optarg
, update_sections
,
5218 "--update-section");
5219 section_add_load_file (update_sections
);
5222 case OPTION_DUMP_SECTION
:
5223 dump_sections
= init_section_add (optarg
, dump_sections
,
5227 case OPTION_ADD_SYMBOL
:
5230 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5232 newsym
->next
= NULL
;
5233 s
= strchr (optarg
, '=');
5235 fatal (_("bad format for %s"), "--add-symbol");
5236 t
= strchr (s
+ 1, ':');
5238 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5241 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5242 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5246 newsym
->section
= NULL
;
5247 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5251 t
= strchr (t
+ 1, ',');
5252 newsym
->othersym
= NULL
;
5254 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5256 newsym
->flags
= BSF_GLOBAL
;
5258 /* Keep 'othersym' symbols at the front of the list. */
5259 if (newsym
->othersym
)
5261 newsym
->next
= add_sym_list
;
5263 add_sym_tail
= &newsym
->next
;
5264 add_sym_list
= newsym
;
5268 *add_sym_tail
= newsym
;
5269 add_sym_tail
= &newsym
->next
;
5275 case OPTION_CHANGE_START
:
5276 change_start
= parse_vma (optarg
, "--change-start");
5279 case OPTION_CHANGE_SECTION_ADDRESS
:
5280 case OPTION_CHANGE_SECTION_LMA
:
5281 case OPTION_CHANGE_SECTION_VMA
:
5283 struct section_list
* p
;
5284 unsigned int context
= 0;
5288 char *option
= NULL
;
5293 case OPTION_CHANGE_SECTION_ADDRESS
:
5294 option
= "--change-section-address";
5295 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5297 case OPTION_CHANGE_SECTION_LMA
:
5298 option
= "--change-section-lma";
5299 context
= SECTION_CONTEXT_ALTER_LMA
;
5301 case OPTION_CHANGE_SECTION_VMA
:
5302 option
= "--change-section-vma";
5303 context
= SECTION_CONTEXT_ALTER_VMA
;
5307 s
= strchr (optarg
, '=');
5310 s
= strchr (optarg
, '+');
5313 s
= strchr (optarg
, '-');
5315 fatal (_("bad format for %s"), option
);
5320 /* Correct the context. */
5323 case OPTION_CHANGE_SECTION_ADDRESS
:
5324 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5326 case OPTION_CHANGE_SECTION_LMA
:
5327 context
= SECTION_CONTEXT_SET_LMA
;
5329 case OPTION_CHANGE_SECTION_VMA
:
5330 context
= SECTION_CONTEXT_SET_VMA
;
5336 name
= (char *) xmalloc (len
+ 1);
5337 strncpy (name
, optarg
, len
);
5340 p
= find_section_list (name
, TRUE
, context
);
5342 val
= parse_vma (s
+ 1, option
);
5348 case OPTION_CHANGE_SECTION_ADDRESS
:
5352 case OPTION_CHANGE_SECTION_LMA
:
5356 case OPTION_CHANGE_SECTION_VMA
:
5363 case OPTION_CHANGE_ADDRESSES
:
5364 change_section_address
= parse_vma (optarg
, "--change-addresses");
5365 change_start
= change_section_address
;
5368 case OPTION_CHANGE_WARNINGS
:
5372 case OPTION_CHANGE_LEADING_CHAR
:
5373 change_leading_char
= TRUE
;
5376 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5379 if (strcasecmp (optarg
, "none") == 0)
5380 do_debug_sections
= decompress
;
5381 else if (strcasecmp (optarg
, "zlib") == 0)
5382 do_debug_sections
= compress_zlib
;
5383 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5384 do_debug_sections
= compress_gnu_zlib
;
5385 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5386 do_debug_sections
= compress_gabi_zlib
;
5388 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5392 do_debug_sections
= compress
;
5395 case OPTION_DEBUGGING
:
5396 convert_debugging
= TRUE
;
5399 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5400 do_debug_sections
= decompress
;
5403 case OPTION_ELF_STT_COMMON
:
5404 if (strcasecmp (optarg
, "yes") == 0)
5405 do_elf_stt_common
= elf_stt_common
;
5406 else if (strcasecmp (optarg
, "no") == 0)
5407 do_elf_stt_common
= no_elf_stt_common
;
5409 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5413 case OPTION_GAP_FILL
:
5415 bfd_vma gap_fill_vma
;
5417 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5418 gap_fill
= (bfd_byte
) gap_fill_vma
;
5419 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5423 sprintf_vma (buff
, gap_fill_vma
);
5425 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5428 gap_fill_set
= TRUE
;
5432 case OPTION_NO_CHANGE_WARNINGS
:
5433 change_warn
= FALSE
;
5437 pad_to
= parse_vma (optarg
, "--pad-to");
5441 case OPTION_REMOVE_LEADING_CHAR
:
5442 remove_leading_char
= TRUE
;
5445 case OPTION_REDEFINE_SYM
:
5447 /* Insert this redefinition onto redefine_specific_htab. */
5451 const char *nextarg
;
5452 char *source
, *target
;
5454 s
= strchr (optarg
, '=');
5456 fatal (_("bad format for %s"), "--redefine-sym");
5459 source
= (char *) xmalloc (len
+ 1);
5460 strncpy (source
, optarg
, len
);
5464 len
= strlen (nextarg
);
5465 target
= (char *) xmalloc (len
+ 1);
5466 strcpy (target
, nextarg
);
5468 add_redefine_and_check ("--redefine-sym", source
, target
);
5475 case OPTION_REDEFINE_SYMS
:
5476 add_redefine_syms_file (optarg
);
5479 case OPTION_SET_SECTION_FLAGS
:
5481 struct section_list
*p
;
5486 s
= strchr (optarg
, '=');
5488 fatal (_("bad format for %s"), "--set-section-flags");
5491 name
= (char *) xmalloc (len
+ 1);
5492 strncpy (name
, optarg
, len
);
5495 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5497 p
->flags
= parse_flags (s
+ 1);
5501 case OPTION_SET_SECTION_ALIGNMENT
:
5503 struct section_list
*p
;
5509 s
= strchr (optarg
, '=');
5511 fatal (_("bad format for --set-section-alignment: argument needed"));
5513 align
= atoi (s
+ 1);
5515 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5517 /* Convert integer alignment into a power-of-two alignment. */
5519 while ((align
& 1) == 0)
5526 /* Number has more than on 1, i.e. wasn't a power of 2. */
5527 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5529 /* Add the alignment setting to the section list. */
5531 name
= (char *) xmalloc (len
+ 1);
5532 strncpy (name
, optarg
, len
);
5535 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5537 p
->alignment
= palign
;
5541 case OPTION_RENAME_SECTION
:
5544 const char *eq
, *fl
;
5549 eq
= strchr (optarg
, '=');
5551 fatal (_("bad format for %s"), "--rename-section");
5555 fatal (_("bad format for %s"), "--rename-section");
5557 old_name
= (char *) xmalloc (len
+ 1);
5558 strncpy (old_name
, optarg
, len
);
5562 fl
= strchr (eq
, ',');
5565 flags
= parse_flags (fl
+ 1);
5575 fatal (_("bad format for %s"), "--rename-section");
5577 new_name
= (char *) xmalloc (len
+ 1);
5578 strncpy (new_name
, eq
, len
);
5581 add_section_rename (old_name
, new_name
, flags
);
5585 case OPTION_SET_START
:
5586 set_start
= parse_vma (optarg
, "--set-start");
5587 set_start_set
= TRUE
;
5590 case OPTION_SREC_LEN
:
5591 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5594 case OPTION_SREC_FORCES3
:
5595 _bfd_srec_forceS3
= TRUE
;
5598 case OPTION_STRIP_SYMBOLS
:
5599 add_specific_symbols (optarg
, strip_specific_htab
,
5600 &strip_specific_buffer
);
5603 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5604 add_specific_symbols (optarg
, strip_unneeded_htab
,
5605 &strip_unneeded_buffer
);
5608 case OPTION_KEEP_SYMBOLS
:
5609 add_specific_symbols (optarg
, keep_specific_htab
,
5610 &keep_specific_buffer
);
5613 case OPTION_LOCALIZE_HIDDEN
:
5614 localize_hidden
= TRUE
;
5617 case OPTION_LOCALIZE_SYMBOLS
:
5618 add_specific_symbols (optarg
, localize_specific_htab
,
5619 &localize_specific_buffer
);
5622 case OPTION_LONG_SECTION_NAMES
:
5623 if (!strcmp ("enable", optarg
))
5624 long_section_names
= ENABLE
;
5625 else if (!strcmp ("disable", optarg
))
5626 long_section_names
= DISABLE
;
5627 else if (!strcmp ("keep", optarg
))
5628 long_section_names
= KEEP
;
5630 fatal (_("unknown long section names option '%s'"), optarg
);
5633 case OPTION_GLOBALIZE_SYMBOLS
:
5634 use_globalize
= TRUE
;
5635 add_specific_symbols (optarg
, globalize_specific_htab
,
5636 &globalize_specific_buffer
);
5639 case OPTION_KEEPGLOBAL_SYMBOLS
:
5640 use_keep_global
= TRUE
;
5641 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5642 &keepglobal_specific_buffer
);
5645 case OPTION_WEAKEN_SYMBOLS
:
5646 add_specific_symbols (optarg
, weaken_specific_htab
,
5647 &weaken_specific_buffer
);
5650 case OPTION_ALT_MACH_CODE
:
5651 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5652 if (use_alt_mach_code
== 0)
5653 fatal (_("unable to parse alternative machine code"));
5656 case OPTION_PREFIX_SYMBOLS
:
5657 prefix_symbols_string
= optarg
;
5660 case OPTION_PREFIX_SECTIONS
:
5661 prefix_sections_string
= optarg
;
5664 case OPTION_PREFIX_ALLOC_SECTIONS
:
5665 prefix_alloc_sections_string
= optarg
;
5668 case OPTION_READONLY_TEXT
:
5669 bfd_flags_to_set
|= WP_TEXT
;
5670 bfd_flags_to_clear
&= ~WP_TEXT
;
5673 case OPTION_WRITABLE_TEXT
:
5674 bfd_flags_to_clear
|= WP_TEXT
;
5675 bfd_flags_to_set
&= ~WP_TEXT
;
5679 bfd_flags_to_set
|= D_PAGED
;
5680 bfd_flags_to_clear
&= ~D_PAGED
;
5684 bfd_flags_to_clear
|= D_PAGED
;
5685 bfd_flags_to_set
&= ~D_PAGED
;
5688 case OPTION_EXTRACT_DWO
:
5689 strip_symbols
= STRIP_NONDWO
;
5692 case OPTION_EXTRACT_SYMBOL
:
5693 extract_symbol
= TRUE
;
5696 case OPTION_REVERSE_BYTES
:
5698 int prev
= reverse_bytes
;
5700 reverse_bytes
= atoi (optarg
);
5701 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5702 fatal (_("number of bytes to reverse must be positive and even"));
5704 if (prev
&& prev
!= reverse_bytes
)
5705 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5710 case OPTION_FILE_ALIGNMENT
:
5711 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5717 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5719 || (*end
!= '.' && *end
!= '\0'))
5720 non_fatal (_("%s: invalid reserve value for --heap"),
5722 else if (*end
!= '\0')
5724 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5726 non_fatal (_("%s: invalid commit value for --heap"),
5732 case OPTION_IMAGE_BASE
:
5733 pe_image_base
= parse_vma (optarg
, "--image-base");
5736 case OPTION_PE_SECTION_ALIGNMENT
:
5737 pe_section_alignment
= parse_vma (optarg
,
5738 "--section-alignment");
5741 case OPTION_SUBSYSTEM
:
5742 set_pe_subsystem (optarg
);
5748 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5750 || (*end
!= '.' && *end
!= '\0'))
5751 non_fatal (_("%s: invalid reserve value for --stack"),
5753 else if (*end
!= '\0')
5755 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5757 non_fatal (_("%s: invalid commit value for --stack"),
5763 case OPTION_VERILOG_DATA_WIDTH
:
5764 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5765 if (VerilogDataWidth
< 1)
5766 fatal (_("verilog data width must be at least 1 byte"));
5770 /* We've been given a long option. */
5775 copy_usage (stdout
, 0);
5778 copy_usage (stderr
, 1);
5782 if (use_globalize
&& use_keep_global
)
5783 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5792 print_version ("objcopy");
5794 if (interleave
&& copy_byte
== -1)
5795 fatal (_("interleave start byte must be set with --byte"));
5797 if (copy_byte
>= interleave
)
5798 fatal (_("byte number must be less than interleave"));
5800 if (copy_width
> interleave
- copy_byte
)
5801 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5803 if (optind
== argc
|| optind
+ 2 < argc
)
5804 copy_usage (stderr
, 1);
5806 input_filename
= argv
[optind
];
5807 if (optind
+ 1 < argc
)
5808 output_filename
= argv
[optind
+ 1];
5810 default_deterministic ();
5812 /* Default is to strip no symbols. */
5813 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5814 strip_symbols
= STRIP_NONE
;
5816 if (output_target
== NULL
)
5817 output_target
= input_target
;
5819 /* Convert input EFI target to PEI target. */
5820 if (input_target
!= NULL
5821 && strncmp (input_target
, "efi-", 4) == 0)
5825 efi
= xstrdup (output_target
+ 4);
5826 if (strncmp (efi
, "bsdrv-", 6) == 0
5827 || strncmp (efi
, "rtdrv-", 6) == 0)
5829 else if (strncmp (efi
, "app-", 4) != 0)
5830 fatal (_("unknown input EFI target: %s"), input_target
);
5833 convert_efi_target (efi
);
5836 /* Convert output EFI target to PEI target. */
5837 if (output_target
!= NULL
5838 && strncmp (output_target
, "efi-", 4) == 0)
5842 efi
= xstrdup (output_target
+ 4);
5843 if (strncmp (efi
, "app-", 4) == 0)
5845 if (pe_subsystem
== -1)
5846 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5848 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5850 if (pe_subsystem
== -1)
5851 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5854 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5856 if (pe_subsystem
== -1)
5857 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5861 fatal (_("unknown output EFI target: %s"), output_target
);
5863 if (pe_file_alignment
== (bfd_vma
) -1)
5864 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5865 if (pe_section_alignment
== (bfd_vma
) -1)
5866 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5868 output_target
= efi
;
5869 convert_efi_target (efi
);
5873 if (stat (input_filename
, & statbuf
) < 0)
5874 fatal (_("warning: could not locate '%s'. System error message: %s"),
5875 input_filename
, strerror (errno
));
5877 /* If there is no destination file, or the source and destination files
5878 are the same, then create a temp and rename the result into the input. */
5879 if (output_filename
== NULL
5880 || filename_cmp (input_filename
, output_filename
) == 0)
5881 tmpname
= make_tempname (input_filename
);
5883 tmpname
= output_filename
;
5885 if (tmpname
== NULL
)
5886 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5887 input_filename
, strerror (errno
));
5889 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5893 set_times (tmpname
, &statbuf
);
5894 if (tmpname
!= output_filename
)
5895 status
= (smart_rename (tmpname
, input_filename
,
5896 preserve_dates
) != 0);
5899 unlink_if_ordinary (tmpname
);
5901 if (tmpname
!= output_filename
)
5906 struct section_list
*p
;
5908 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5912 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5916 sprintf_vma (buff
, p
->vma_val
);
5918 /* xgettext:c-format */
5919 non_fatal (_("%s %s%c0x%s never used"),
5920 "--change-section-vma",
5922 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5926 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5930 sprintf_vma (buff
, p
->lma_val
);
5932 /* xgettext:c-format */
5933 non_fatal (_("%s %s%c0x%s never used"),
5934 "--change-section-lma",
5936 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5943 if (strip_specific_buffer
)
5944 free (strip_specific_buffer
);
5946 if (strip_unneeded_buffer
)
5947 free (strip_unneeded_buffer
);
5949 if (keep_specific_buffer
)
5950 free (keep_specific_buffer
);
5952 if (localize_specific_buffer
)
5953 free (globalize_specific_buffer
);
5955 if (globalize_specific_buffer
)
5956 free (globalize_specific_buffer
);
5958 if (keepglobal_specific_buffer
)
5959 free (keepglobal_specific_buffer
);
5961 if (weaken_specific_buffer
)
5962 free (weaken_specific_buffer
);
5968 main (int argc
, char *argv
[])
5970 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5971 setlocale (LC_MESSAGES
, "");
5973 #if defined (HAVE_SETLOCALE)
5974 setlocale (LC_CTYPE
, "");
5976 bindtextdomain (PACKAGE
, LOCALEDIR
);
5977 textdomain (PACKAGE
);
5979 program_name
= argv
[0];
5980 xmalloc_set_program_name (program_name
);
5982 START_PROGRESS (program_name
, 0);
5984 expandargv (&argc
, &argv
);
5986 strip_symbols
= STRIP_UNDEF
;
5987 discard_locals
= LOCALS_UNDEF
;
5989 if (bfd_init () != BFD_INIT_MAGIC
)
5990 fatal (_("fatal error: libbfd ABI mismatch"));
5991 set_default_bfd_target ();
5995 int i
= strlen (program_name
);
5996 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5997 /* Drop the .exe suffix, if any. */
5998 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6001 program_name
[i
] = '\0';
6004 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6007 create_symbol_htabs ();
6010 bfd_set_error_program_name (argv
[0]);
6013 strip_main (argc
, argv
);
6015 copy_main (argc
, argv
);
6017 END_PROGRESS (program_name
);