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
);
1447 if (elf_sym
!= NULL
)
1448 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1457 /* Empty name is hopefully never a valid symbol name. */
1458 static const char * empty_name
= "";
1461 need_sym_before (struct addsym_node
**node
, const char *sym
)
1464 struct addsym_node
*ptr
= add_sym_list
;
1466 /* 'othersym' symbols are at the front of the list. */
1467 for (count
= 0; count
< add_symbols
; count
++)
1471 if (ptr
->othersym
== empty_name
)
1473 else if (strcmp (ptr
->othersym
, sym
) == 0)
1475 free ((char *) ptr
->othersym
);
1476 ptr
->othersym
= empty_name
;
1486 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1488 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1490 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1491 sym
->value
= ptr
->symval
;
1492 sym
->flags
= ptr
->flags
;
1495 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1497 fatal (_("Section %s not found"), ptr
->section
);
1501 sym
->section
= bfd_abs_section_ptr
;
1505 /* Choose which symbol entries to copy; put the result in OSYMS.
1506 We don't copy in place, because that confuses the relocs.
1507 Return the number of symbols to print. */
1510 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1511 asymbol
**isyms
, long symcount
)
1513 asymbol
**from
= isyms
, **to
= osyms
;
1514 long src_count
= 0, dst_count
= 0;
1515 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1517 for (; src_count
< symcount
; src_count
++)
1519 asymbol
*sym
= from
[src_count
];
1520 flagword flags
= sym
->flags
;
1521 char *name
= (char *) bfd_asymbol_name (sym
);
1523 bfd_boolean used_in_reloc
= FALSE
;
1524 bfd_boolean undefined
;
1525 bfd_boolean rem_leading_char
;
1526 bfd_boolean add_leading_char
;
1528 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1532 struct addsym_node
*ptr
;
1534 if (need_sym_before (&ptr
, name
))
1535 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1538 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1542 new_name
= (char *) lookup_sym_redefinition (name
);
1543 if (new_name
== name
1544 && (flags
& BSF_SECTION_SYM
) != 0)
1545 new_name
= (char *) find_section_rename (name
, NULL
);
1546 bfd_set_asymbol_name (sym
, new_name
);
1550 /* Check if we will remove the current leading character. */
1553 && name
[0] == bfd_get_symbol_leading_char (abfd
)
1554 && (change_leading_char
1555 || (remove_leading_char
1556 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1558 || bfd_is_com_section (bfd_asymbol_section (sym
))))));
1560 /* Check if we will add a new leading character. */
1563 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1564 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1565 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1567 /* Short circuit for change_leading_char if we can do it in-place. */
1568 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1570 name
[0] = bfd_get_symbol_leading_char (obfd
);
1571 bfd_set_asymbol_name (sym
, name
);
1572 rem_leading_char
= FALSE
;
1573 add_leading_char
= FALSE
;
1576 /* Remove leading char. */
1577 if (rem_leading_char
)
1578 bfd_set_asymbol_name (sym
, ++name
);
1580 /* Add new leading char and/or prefix. */
1581 if (add_leading_char
|| prefix_symbols_string
)
1584 size_t len
= strlen (name
) + 1;
1586 if (add_leading_char
)
1588 if (prefix_symbols_string
)
1589 len
+= strlen (prefix_symbols_string
);
1591 ptr
= n
= (char *) xmalloc (len
);
1592 if (add_leading_char
)
1593 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1595 if (prefix_symbols_string
)
1597 strcpy (ptr
, prefix_symbols_string
);
1598 ptr
+= strlen (prefix_symbols_string
);
1602 bfd_set_asymbol_name (sym
, n
);
1606 if (strip_symbols
== STRIP_ALL
)
1608 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1609 || ((flags
& BSF_SECTION_SYM
) != 0
1610 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1614 used_in_reloc
= TRUE
;
1616 else if (relocatable
/* Relocatable file. */
1617 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1618 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1620 else if (bfd_decode_symclass (sym
) == 'I')
1621 /* Global symbols in $idata sections need to be retained
1622 even if relocatable is FALSE. External users of the
1623 library containing the $idata section may reference these
1626 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1627 || (flags
& BSF_WEAK
) != 0
1629 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1630 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1631 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1632 keep
= (strip_symbols
!= STRIP_DEBUG
1633 && strip_symbols
!= STRIP_UNNEEDED
1634 && ! convert_debugging
);
1635 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1636 /* COMDAT sections store special information in local
1637 symbols, so we cannot risk stripping any of them. */
1639 else /* Local symbol. */
1640 keep
= (strip_symbols
!= STRIP_UNNEEDED
1641 && (discard_locals
!= LOCALS_ALL
1642 && (discard_locals
!= LOCALS_START_L
1643 || ! bfd_is_local_label (abfd
, sym
))));
1645 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1647 /* There are multiple ways to set 'keep' above, but if it
1648 was the relocatable symbol case, then that's an error. */
1651 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1659 && !(flags
& BSF_KEEP
)
1660 && is_specified_symbol (name
, strip_unneeded_htab
))
1664 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1665 || is_specified_symbol (name
, keep_specific_htab
)))
1668 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1673 if ((flags
& BSF_GLOBAL
) != 0
1674 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1676 sym
->flags
&= ~ BSF_GLOBAL
;
1677 sym
->flags
|= BSF_WEAK
;
1681 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1682 && (is_specified_symbol (name
, localize_specific_htab
)
1683 || (htab_elements (keepglobal_specific_htab
) != 0
1684 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1685 || (localize_hidden
&& is_hidden_symbol (sym
))))
1687 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1688 sym
->flags
|= BSF_LOCAL
;
1692 && (flags
& BSF_LOCAL
)
1693 && is_specified_symbol (name
, globalize_specific_htab
))
1695 sym
->flags
&= ~ BSF_LOCAL
;
1696 sym
->flags
|= BSF_GLOBAL
;
1699 to
[dst_count
++] = sym
;
1704 struct addsym_node
*ptr
= add_sym_list
;
1706 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1710 if (ptr
->othersym
!= empty_name
)
1711 fatal (_("'before=%s' not found"), ptr
->othersym
);
1714 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1720 to
[dst_count
] = NULL
;
1725 /* Find the redefined name of symbol SOURCE. */
1728 lookup_sym_redefinition (const char *source
)
1730 struct redefine_node key_node
= {(char *) source
, NULL
};
1731 struct redefine_node
*redef_node
1732 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1734 return redef_node
== NULL
? source
: redef_node
->target
;
1737 /* Insert a node into symbol redefine hash tabel. */
1740 add_redefine_and_check (const char *cause
, const char *source
,
1743 struct redefine_node
*new_node
1744 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1746 new_node
->source
= strdup (source
);
1747 new_node
->target
= strdup (target
);
1749 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1750 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1753 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1754 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1757 /* Insert the NEW_NODE into hash table for quick search. */
1758 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1760 /* Insert the target string into the reverse hash table, this is needed for
1761 duplicated target string check. */
1762 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1766 /* Handle the --redefine-syms option. Read lines containing "old new"
1767 from the file, and add them to the symbol redefine list. */
1770 add_redefine_syms_file (const char *filename
)
1779 file
= fopen (filename
, "r");
1781 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1782 filename
, strerror (errno
));
1785 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1793 /* Collect the input symbol name. */
1794 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1802 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1810 /* Eat white space between the symbol names. */
1811 while (IS_WHITESPACE (c
))
1813 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1818 /* Collect the output symbol name. */
1820 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1828 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1836 /* Eat white space at end of line. */
1837 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1842 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1843 || c
== '\n' || c
== EOF
)
1846 /* Append the redefinition to the list. */
1848 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1859 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1861 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1862 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1865 /* Eat the rest of the line and finish it. */
1866 while (c
!= '\n' && c
!= EOF
)
1872 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1878 /* Copy unknown object file IBFD onto OBFD.
1879 Returns TRUE upon success, FALSE otherwise. */
1882 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1890 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1892 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1899 non_fatal (_("stat returns negative size for `%s'"),
1900 bfd_get_archive_filename (ibfd
));
1904 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1906 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1911 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1912 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1914 cbuf
= (char *) xmalloc (BUFSIZE
);
1916 while (ncopied
< size
)
1918 tocopy
= size
- ncopied
;
1919 if (tocopy
> BUFSIZE
)
1922 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1923 != (bfd_size_type
) tocopy
)
1925 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1930 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1931 != (bfd_size_type
) tocopy
)
1933 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1941 /* We should at least to be able to read it back when copying an
1942 unknown object in an archive. */
1943 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1948 typedef struct objcopy_internal_note
1950 Elf_Internal_Note note
;
1951 unsigned long padded_namesz
;
1954 } objcopy_internal_note
;
1956 #define DEBUG_MERGE 0
1959 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1961 #define merge_debug(format, ...)
1964 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
1967 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
1968 objcopy_internal_note
* pnote2
)
1970 if (pnote1
->end
< pnote2
->start
)
1971 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1972 Really we should extract the alignment of the section
1973 covered by the notes. */
1974 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1976 if (pnote2
->end
< pnote2
->start
)
1977 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
1979 if (pnote1
->end
< pnote2
->end
)
1982 if (pnote2
->end
< pnote1
->end
)
1988 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
1991 contained_by (objcopy_internal_note
* needle
,
1992 objcopy_internal_note
* haystack
)
1994 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
1998 is_open_note (objcopy_internal_note
* pnote
)
2000 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2004 is_func_note (objcopy_internal_note
* pnote
)
2006 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2010 is_deleted_note (objcopy_internal_note
* pnote
)
2012 return pnote
->note
.type
== 0;
2016 is_version_note (objcopy_internal_note
* pnote
)
2018 return (pnote
->note
.namesz
> 4
2019 && pnote
->note
.namedata
[0] == 'G'
2020 && pnote
->note
.namedata
[1] == 'A'
2021 && pnote
->note
.namedata
[2] == '$'
2022 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2026 is_64bit (bfd
* abfd
)
2028 /* Should never happen, but let's be paranoid. */
2029 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2032 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2035 /* This sorting function is used to get the notes into an order
2036 that makes merging easy. */
2039 compare_gnu_build_notes (const void * data1
, const void * data2
)
2041 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2042 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2044 /* Sort notes based upon the attribute they record. */
2045 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2046 pnote2
->note
.namedata
+ 3,
2047 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2048 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2052 if (pnote1
->end
< pnote2
->start
)
2054 if (pnote1
->start
> pnote2
->end
)
2057 /* Overlaps - we should merge the two ranges. */
2058 if (pnote1
->start
< pnote2
->start
)
2060 if (pnote1
->end
> pnote2
->end
)
2062 if (pnote1
->end
< pnote2
->end
)
2065 /* Put OPEN notes before function notes. */
2066 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2068 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2074 /* This sorting function is used to get the notes into an order
2075 that makes eliminating address ranges easier. */
2078 sort_gnu_build_notes (const void * data1
, const void * data2
)
2080 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2081 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2083 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2085 /* Move deleted notes to the end. */
2086 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2089 /* Move OPEN notes to the start. */
2090 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2093 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2096 return 1; /* 1: F 2: O */
2099 /* Sort by starting address. */
2100 if (pnote1
->start
< pnote2
->start
)
2102 if (pnote1
->start
> pnote2
->start
)
2105 /* Then by end address (bigger range first). */
2106 if (pnote1
->end
> pnote2
->end
)
2108 if (pnote1
->end
< pnote2
->end
)
2111 /* Then by attribute type. */
2112 if (pnote1
->note
.namesz
> 4
2113 && pnote2
->note
.namesz
> 4
2114 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2115 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2120 /* Merge the notes on SEC, removing redundant entries.
2121 Returns the new, smaller size of the section upon success. */
2123 static bfd_size_type
2124 merge_gnu_build_notes (bfd
* abfd
,
2127 bfd_byte
* contents
)
2129 objcopy_internal_note
* pnotes_end
;
2130 objcopy_internal_note
* pnotes
= NULL
;
2131 objcopy_internal_note
* pnote
;
2132 bfd_size_type remain
= size
;
2133 unsigned version_1_seen
= 0;
2134 unsigned version_2_seen
= 0;
2135 unsigned version_3_seen
= 0;
2136 const char * err
= NULL
;
2137 bfd_byte
* in
= contents
;
2138 unsigned long previous_func_start
= 0;
2139 unsigned long previous_open_start
= 0;
2140 unsigned long previous_func_end
= 0;
2141 unsigned long previous_open_end
= 0;
2144 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2150 /* If there are relocs associated with this section then we
2151 cannot safely merge it. */
2152 relpp
= (arelent
**) xmalloc (relsize
);
2153 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2158 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2159 bfd_get_filename (abfd
), bfd_section_name (sec
));
2164 /* Make a copy of the notes and convert to our internal format.
2165 Minimum size of a note is 12 bytes. Also locate the version
2166 notes and check them. */
2167 pnote
= pnotes
= (objcopy_internal_note
*)
2168 xcalloc ((size
/ 12), sizeof (* pnote
));
2169 while (remain
>= 12)
2173 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2174 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2175 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2176 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2178 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2180 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2184 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2185 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2187 err
= _("corrupt GNU build attribute note: wrong note type");
2191 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2193 err
= _("corrupt GNU build attribute note: note too big");
2197 if (pnote
->note
.namesz
< 2)
2199 err
= _("corrupt GNU build attribute note: name too small");
2203 pnote
->note
.namedata
= (char *)(in
+ 12);
2204 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2206 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2207 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2209 if (pnote
->note
.namesz
> 2
2210 && pnote
->note
.namedata
[0] == '$'
2211 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2212 && pnote
->note
.namedata
[2] == '1')
2214 else if (is_version_note (pnote
))
2216 if (pnote
->note
.namedata
[4] == '2')
2218 else if (pnote
->note
.namedata
[4] == '3')
2222 err
= _("corrupt GNU build attribute note: unsupported version");
2227 switch (pnote
->note
.descsz
)
2234 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2235 /* FIXME: For version 1 and 2 notes we should try to
2236 calculate the end address by finding a symbol whose
2237 value is START, and then adding in its size.
2239 For now though, since v1 and v2 was not intended to
2240 handle gaps, we chose an artificially large end
2246 if (! is_64bit (abfd
))
2248 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2249 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2253 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2254 /* FIXME: For version 1 and 2 notes we should try to
2255 calculate the end address by finding a symbol whose
2256 value is START, and then adding in its size.
2258 For now though, since v1 and v2 was not intended to
2259 handle gaps, we chose an artificially large end
2266 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2267 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2271 err
= _("corrupt GNU build attribute note: bad description size");
2275 if (is_open_note (pnote
))
2278 previous_open_start
= start
;
2280 pnote
->start
= previous_open_start
;
2283 previous_open_end
= end
;
2285 pnote
->end
= previous_open_end
;
2290 previous_func_start
= start
;
2292 pnote
->start
= previous_func_start
;
2295 previous_func_end
= end
;
2297 pnote
->end
= previous_func_end
;
2300 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2302 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2311 /* Check that the notes are valid. */
2314 err
= _("corrupt GNU build attribute notes: excess data at end");
2318 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2321 err
= _("bad GNU build attribute notes: no known versions detected");
2324 /* This happens with glibc. No idea why. */
2325 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2326 bfd_get_filename (abfd
), bfd_section_name (sec
));
2331 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2332 || (version_1_seen
> 0 && version_3_seen
> 0)
2333 || (version_2_seen
> 0 && version_3_seen
> 0))
2335 err
= _("bad GNU build attribute notes: multiple different versions");
2339 /* We are now only supporting the merging v3+ notes
2340 - it makes things much simpler. */
2341 if (version_3_seen
== 0)
2343 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2347 merge_debug ("Merging section %s which contains %ld notes\n",
2348 sec
->name
, pnotes_end
- pnotes
);
2350 /* Sort the notes. */
2351 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2352 compare_gnu_build_notes
);
2355 merge_debug ("Results of initial sort:\n");
2356 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2357 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2358 (pnote
->note
.namedata
- (char *) contents
) - 12,
2359 pnote
->start
, pnote
->end
,
2361 pnote
->note
.namedata
[3],
2366 /* Now merge the notes. The rules are:
2367 1. If a note has a zero range, it can be eliminated.
2368 2. If two notes have the same namedata then:
2369 2a. If one note's range is fully covered by the other note
2370 then it can be deleted.
2371 2b. If one note's range partially overlaps or adjoins the
2372 other note then if they are both of the same type (open
2373 or func) then they can be merged and one deleted. If
2374 they are of different types then they cannot be merged. */
2375 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2377 /* Skip already deleted notes.
2378 FIXME: Can this happen ? We are scanning forwards and
2379 deleting backwards after all. */
2380 if (is_deleted_note (pnote
))
2383 /* Rule 1 - delete 0-range notes. */
2384 if (pnote
->start
== pnote
->end
)
2386 merge_debug ("Delete note at offset %#08lx - empty range\n",
2387 (pnote
->note
.namedata
- (char *) contents
) - 12);
2388 pnote
->note
.type
= 0;
2393 objcopy_internal_note
* back
;
2395 /* Rule 2: Check to see if there is an identical previous note. */
2396 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2398 if (is_deleted_note (back
))
2401 /* Our sorting function should have placed all identically
2402 attributed notes together, so if we see a note of a different
2403 attribute type stop searching. */
2404 if (back
->note
.namesz
!= pnote
->note
.namesz
2405 || memcmp (back
->note
.namedata
,
2406 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2409 if (back
->start
== pnote
->start
2410 && back
->end
== pnote
->end
)
2412 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2413 (pnote
->note
.namedata
- (char *) contents
) - 12,
2414 (back
->note
.namedata
- (char *) contents
) - 12);
2415 pnote
->note
.type
= 0;
2420 if (contained_by (pnote
, back
))
2422 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2423 (pnote
->note
.namedata
- (char *) contents
) - 12,
2424 (back
->note
.namedata
- (char *) contents
) - 12);
2425 pnote
->note
.type
= 0;
2430 /* This should not happen as we have sorted the
2431 notes with earlier starting addresses first. */
2432 if (contained_by (back
, pnote
))
2433 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2437 if (overlaps_or_adjoins (back
, pnote
)
2438 && is_func_note (back
) == is_func_note (pnote
))
2440 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2441 (pnote
->note
.namedata
- (char *) contents
) - 12,
2442 (back
->note
.namedata
- (char *) contents
) - 12);
2444 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2445 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2446 pnote
->note
.type
= 0;
2450 /* Don't scan too far back however. */
2453 /* FIXME: Not sure if this can ever be triggered. */
2454 merge_debug ("ITERATION LIMIT REACHED\n");
2459 if (! is_deleted_note (pnote
))
2460 merge_debug ("Unable to do anything with note at %#08lx\n",
2461 (pnote
->note
.namedata
- (char *) contents
) - 12);
2465 /* Resort the notes. */
2466 merge_debug ("Final sorting of notes\n");
2467 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2469 /* Reconstruct the ELF notes. */
2470 bfd_byte
* new_contents
;
2473 bfd_size_type new_size
;
2474 bfd_vma prev_start
= 0;
2475 bfd_vma prev_end
= 0;
2477 /* Not sure how, but the notes might grow in size.
2478 (eg see PR 1774507). Allow for this here. */
2479 new = new_contents
= xmalloc (size
* 2);
2480 for (pnote
= pnotes
, old
= contents
;
2484 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2486 if (! is_deleted_note (pnote
))
2488 /* Create the note, potentially using the
2489 address range of the previous note. */
2490 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2492 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2493 bfd_put_32 (abfd
, 0, new + 4);
2494 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2496 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2497 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2498 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2499 new += pnote
->padded_namesz
;
2503 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2504 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2505 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2507 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2508 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2509 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2510 new += pnote
->padded_namesz
;
2511 if (is_64bit (abfd
))
2513 bfd_put_64 (abfd
, pnote
->start
, new);
2514 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2519 bfd_put_32 (abfd
, pnote
->start
, new);
2520 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2524 prev_start
= pnote
->start
;
2525 prev_end
= pnote
->end
;
2533 merge_debug ("Results of merge:\n");
2534 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2535 if (! is_deleted_note (pnote
))
2536 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2537 (pnote
->note
.namedata
- (char *) contents
) - 12,
2538 pnote
->start
, pnote
->end
,
2540 pnote
->note
.namedata
[3],
2545 new_size
= new - new_contents
;
2546 if (new_size
< size
)
2548 memcpy (contents
, new_contents
, new_size
);
2551 free (new_contents
);
2556 bfd_set_error (bfd_error_bad_value
);
2557 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2566 check_new_section_flags (flagword flags
, bfd
* abfd
, const char * secname
)
2568 /* Only set the SEC_COFF_SHARED flag on COFF files.
2569 The same bit value is used by ELF targets to indicate
2570 compressed sections, and setting that flag here breaks
2572 if ((flags
& SEC_COFF_SHARED
)
2573 && bfd_get_flavour (abfd
) != bfd_target_coff_flavour
)
2575 non_fatal (_("%s[%s]: Note - dropping 'share' flag as output format is not COFF"),
2576 bfd_get_filename (abfd
), secname
);
2577 flags
&= ~ SEC_COFF_SHARED
;
2582 /* Copy object file IBFD onto OBFD.
2583 Returns TRUE upon success, FALSE otherwise. */
2586 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2590 asection
**osections
= NULL
;
2592 asection
*gnu_debuglink_section
= NULL
;
2593 bfd_size_type
*gaps
= NULL
;
2594 bfd_size_type max_gap
= 0;
2597 enum bfd_architecture iarch
;
2599 unsigned int num_sec
, i
;
2601 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2602 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2603 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2605 /* PR 17636: Call non-fatal so that we return to our parent who
2606 may need to tidy temporary files. */
2607 non_fatal (_("unable to change endianness of '%s'"),
2608 bfd_get_archive_filename (ibfd
));
2612 if (ibfd
->read_only
)
2614 non_fatal (_("unable to modify '%s' due to errors"),
2615 bfd_get_archive_filename (ibfd
));
2619 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2621 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2625 if (ibfd
->sections
== NULL
)
2627 non_fatal (_("error: the input file '%s' has no sections"),
2628 bfd_get_archive_filename (ibfd
));
2632 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2634 if ((do_debug_sections
& compress
) != 0
2635 && do_debug_sections
!= compress
)
2637 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2638 bfd_get_archive_filename (ibfd
));
2642 if (do_elf_stt_common
)
2644 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2645 bfd_get_archive_filename (ibfd
));
2651 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2652 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2653 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2662 start
= bfd_get_start_address (ibfd
);
2663 start
+= change_start
;
2666 /* Neither the start address nor the flags
2667 need to be set for a core file. */
2668 if (bfd_get_format (obfd
) != bfd_core
)
2672 flags
= bfd_get_file_flags (ibfd
);
2673 flags
|= bfd_flags_to_set
;
2674 flags
&= ~bfd_flags_to_clear
;
2675 flags
&= bfd_applicable_file_flags (obfd
);
2677 if (strip_symbols
== STRIP_ALL
)
2678 flags
&= ~HAS_RELOC
;
2680 if (!bfd_set_start_address (obfd
, start
)
2681 || !bfd_set_file_flags (obfd
, flags
))
2683 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2688 /* Copy architecture of input file to output file. */
2689 iarch
= bfd_get_arch (ibfd
);
2690 imach
= bfd_get_mach (ibfd
);
2693 if (iarch
== bfd_arch_unknown
)
2695 iarch
= input_arch
->arch
;
2696 imach
= input_arch
->mach
;
2699 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2700 bfd_get_archive_filename (ibfd
));
2702 if (iarch
== bfd_arch_unknown
2703 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2704 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2706 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2710 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2711 && (ibfd
->target_defaulted
2712 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2714 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2715 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2716 bfd_get_archive_filename (ibfd
));
2718 non_fatal (_("Output file cannot represent architecture `%s'"),
2719 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2720 bfd_get_mach (ibfd
)));
2724 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2726 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2730 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2731 && bfd_pei_p (obfd
))
2733 /* Set up PE parameters. */
2734 pe_data_type
*pe
= pe_data (obfd
);
2736 /* Copy PE parameters before changing them. */
2737 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2738 && bfd_pei_p (ibfd
))
2739 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2741 if (pe_file_alignment
!= (bfd_vma
) -1)
2742 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2744 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2746 if (pe_heap_commit
!= (bfd_vma
) -1)
2747 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2749 if (pe_heap_reserve
!= (bfd_vma
) -1)
2750 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2752 if (pe_image_base
!= (bfd_vma
) -1)
2753 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2755 if (pe_section_alignment
!= (bfd_vma
) -1)
2756 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2758 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2760 if (pe_stack_commit
!= (bfd_vma
) -1)
2761 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2763 if (pe_stack_reserve
!= (bfd_vma
) -1)
2764 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2766 if (pe_subsystem
!= -1)
2767 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2769 if (pe_major_subsystem_version
!= -1)
2770 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2772 if (pe_minor_subsystem_version
!= -1)
2773 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2775 if (pe_file_alignment
> pe_section_alignment
)
2777 char file_alignment
[20], section_alignment
[20];
2779 sprintf_vma (file_alignment
, pe_file_alignment
);
2780 sprintf_vma (section_alignment
, pe_section_alignment
);
2781 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2783 file_alignment
, section_alignment
);
2787 && bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2788 && bfd_pei_p (ibfd
))
2789 pe
->timestamp
= pe_data (ibfd
)->coff
.timestamp
;
2795 if (osympp
!= isympp
)
2801 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2804 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2808 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2809 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2812 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2815 /* PR 17512: file: d6323821
2816 If the symbol table could not be loaded do not pretend that we have
2817 any symbols. This trips us up later on when we load the relocs. */
2821 osympp
= isympp
= NULL
;
2824 /* BFD mandates that all output sections be created and sizes set before
2825 any output is done. Thus, we traverse all sections multiple times. */
2826 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2828 if (!extract_symbol
)
2829 setup_bfd_headers (ibfd
, obfd
);
2831 if (add_sections
!= NULL
)
2833 struct section_add
*padd
;
2834 struct section_list
*pset
;
2836 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2840 pset
= find_section_list (padd
->name
, FALSE
,
2841 SECTION_CONTEXT_SET_FLAGS
);
2844 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2845 flags
= check_new_section_flags (flags
, obfd
, padd
->name
);
2848 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2850 /* bfd_make_section_with_flags() does not return very helpful
2851 error codes, so check for the most likely user error first. */
2852 if (bfd_get_section_by_name (obfd
, padd
->name
))
2854 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2855 _("can't add section '%s'"), padd
->name
);
2860 /* We use LINKER_CREATED here so that the backend hooks
2861 will create any special section type information,
2862 instead of presuming we know what we're doing merely
2863 because we set the flags. */
2864 padd
->section
= bfd_make_section_with_flags
2865 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2866 if (padd
->section
== NULL
)
2868 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2869 _("can't create section `%s'"),
2875 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2877 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2881 pset
= find_section_list (padd
->name
, FALSE
,
2882 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2884 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2886 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2890 pset
= find_section_list (padd
->name
, FALSE
,
2891 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2894 padd
->section
->lma
= pset
->lma_val
;
2896 if (!bfd_set_section_alignment
2897 (padd
->section
, bfd_section_alignment (padd
->section
)))
2899 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2906 if (update_sections
!= NULL
)
2908 struct section_add
*pupdate
;
2910 for (pupdate
= update_sections
;
2912 pupdate
= pupdate
->next
)
2914 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2915 if (pupdate
->section
== NULL
)
2917 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2921 osec
= pupdate
->section
->output_section
;
2922 if (!bfd_set_section_size (osec
, pupdate
->size
))
2924 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2930 merged_note_section
* merged_note_sections
= NULL
;
2933 /* This palaver is necessary because we must set the output
2934 section size first, before its contents are ready. */
2935 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2937 if (! is_mergeable_note_section (ibfd
, osec
))
2940 /* If the section is going to be completly deleted then
2941 do not bother to merge it. */
2942 if (osec
->output_section
== NULL
)
2945 bfd_size_type size
= bfd_section_size (osec
);
2949 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2950 _("warning: note section is empty"));
2954 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2955 merged
->contents
= NULL
;
2956 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2958 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2959 _("warning: could not load note section"));
2964 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2967 /* FIXME: Once we have read the contents in, we must write
2968 them out again. So even if the mergeing has achieved
2969 nothing we still add this entry to the merge list. */
2971 if (size
!= merged
->size
2972 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2974 bfd_nonfatal_message (NULL
, obfd
, osec
,
2975 _("warning: failed to set merged notes size"));
2976 free (merged
->contents
);
2981 /* Add section to list of merged sections. */
2983 merged
->next
= merged_note_sections
;
2984 merged_note_sections
= merged
;
2988 if (dump_sections
!= NULL
)
2990 struct section_add
* pdump
;
2992 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2997 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
3000 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3001 _("can't dump section '%s' - it does not exist"),
3006 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
3008 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3009 _("can't dump section - it has no contents"));
3013 bfd_size_type size
= bfd_section_size (osec
);
3014 /* Note - we allow the dumping of zero-sized sections,
3015 creating an empty file. */
3017 f
= fopen (pdump
->filename
, FOPEN_WB
);
3020 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3021 _("could not open section dump file"));
3025 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3027 if (size
!= 0 && fwrite (contents
, 1, size
, f
) != size
)
3029 non_fatal (_("error writing section contents to %s (error: %s)"),
3038 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3039 _("could not retrieve section contents"));
3046 if (gnu_debuglink_filename
!= NULL
)
3048 /* PR 15125: Give a helpful warning message if
3049 the debuglink section already exists, and
3050 allow the rest of the copy to complete. */
3051 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3053 non_fatal (_("%s: debuglink section already exists"),
3054 bfd_get_filename (obfd
));
3055 gnu_debuglink_filename
= NULL
;
3059 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3060 (obfd
, gnu_debuglink_filename
);
3062 if (gnu_debuglink_section
== NULL
)
3064 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3065 _("cannot create debug link section `%s'"),
3066 gnu_debuglink_filename
);
3070 /* Special processing for PE format files. We
3071 have no way to distinguish PE from COFF here. */
3072 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3074 bfd_vma debuglink_vma
;
3075 asection
* highest_section
;
3077 /* The PE spec requires that all sections be adjacent and sorted
3078 in ascending order of VMA. It also specifies that debug
3079 sections should be last. This is despite the fact that debug
3080 sections are not loaded into memory and so in theory have no
3083 This means that the debuglink section must be given a non-zero
3084 VMA which makes it contiguous with other debug sections. So
3085 walk the current section list, find the section with the
3086 highest VMA and start the debuglink section after that one. */
3087 for (osec
= obfd
->sections
, highest_section
= NULL
;
3091 && (highest_section
== NULL
3092 || osec
->vma
> highest_section
->vma
))
3093 highest_section
= osec
;
3095 if (highest_section
)
3096 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3097 + highest_section
->size
,
3098 /* FIXME: We ought to be using
3099 COFF_PAGE_SIZE here or maybe
3100 bfd_section_alignment() (if it
3101 was set) but since this is for PE
3102 and we know the required alignment
3103 it is easier just to hard code it. */
3106 /* Umm, not sure what to do in this case. */
3107 debuglink_vma
= 0x1000;
3109 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3114 num_sec
= bfd_count_sections (obfd
);
3116 && (gap_fill_set
|| pad_to_set
))
3120 /* We must fill in gaps between the sections and/or we must pad
3121 the last section to a specified address. We do this by
3122 grabbing a list of the sections, sorting them by VMA, and
3123 increasing the section sizes as required to fill the gaps.
3124 We write out the gap contents below. */
3126 osections
= xmalloc (num_sec
* sizeof (*osections
));
3128 bfd_map_over_sections (obfd
, get_sections
, &set
);
3130 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3132 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3133 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3137 for (i
= 0; i
< num_sec
- 1; i
++)
3140 bfd_size_type size
; /* Octets. */
3141 bfd_vma gap_start
, gap_stop
; /* Octets. */
3142 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3143 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3145 flags
= bfd_section_flags (osections
[i
]);
3146 if ((flags
& SEC_HAS_CONTENTS
) == 0
3147 || (flags
& SEC_LOAD
) == 0)
3150 size
= bfd_section_size (osections
[i
]);
3151 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3152 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3153 if (gap_start
< gap_stop
)
3155 if (!bfd_set_section_size (osections
[i
],
3156 size
+ (gap_stop
- gap_start
)))
3158 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3159 _("Can't fill gap after section"));
3163 gaps
[i
] = gap_stop
- gap_start
;
3164 if (max_gap
< gap_stop
- gap_start
)
3165 max_gap
= gap_stop
- gap_start
;
3172 bfd_vma lma
; /* Octets. */
3173 bfd_size_type size
; /* Octets. */
3174 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3175 bfd_vma _pad_to
= pad_to
* opb
;
3177 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3178 size
= bfd_section_size (osections
[num_sec
- 1]);
3179 if (lma
+ size
< _pad_to
)
3181 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3183 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3184 _("can't add padding"));
3189 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3190 if (max_gap
< _pad_to
- (lma
+ size
))
3191 max_gap
= _pad_to
- (lma
+ size
);
3197 /* Symbol filtering must happen after the output sections
3198 have been created, but before their contents are set. */
3200 if (convert_debugging
)
3201 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3203 if (strip_symbols
== STRIP_DEBUG
3204 || strip_symbols
== STRIP_ALL
3205 || strip_symbols
== STRIP_UNNEEDED
3206 || strip_symbols
== STRIP_NONDEBUG
3207 || strip_symbols
== STRIP_DWO
3208 || strip_symbols
== STRIP_NONDWO
3209 || discard_locals
!= LOCALS_UNDEF
3211 || htab_elements (strip_specific_htab
) != 0
3212 || htab_elements (keep_specific_htab
) != 0
3213 || htab_elements (localize_specific_htab
) != 0
3214 || htab_elements (globalize_specific_htab
) != 0
3215 || htab_elements (keepglobal_specific_htab
) != 0
3216 || htab_elements (weaken_specific_htab
) != 0
3217 || htab_elements (redefine_specific_htab
) != 0
3218 || prefix_symbols_string
3221 || convert_debugging
3222 || change_leading_char
3223 || remove_leading_char
3224 || section_rename_list
3228 /* Mark symbols used in output relocations so that they
3229 are kept, even if they are local labels or static symbols.
3231 Note we iterate over the input sections examining their
3232 relocations since the relocations for the output sections
3233 haven't been set yet. mark_symbols_used_in_relocations will
3234 ignore input sections which have no corresponding output
3236 if (strip_symbols
!= STRIP_ALL
)
3238 bfd_set_error (bfd_error_no_error
);
3239 bfd_map_over_sections (ibfd
,
3240 mark_symbols_used_in_relocations
,
3242 if (bfd_get_error () != bfd_error_no_error
)
3249 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3250 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3253 if (convert_debugging
&& dhandle
!= NULL
)
3257 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3260 dhandle
= NULL
; /* Paranoia... */
3269 bfd_set_symtab (obfd
, osympp
, symcount
);
3271 /* This has to happen before section positions are set. */
3272 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3274 /* This has to happen after the symbol table has been set. */
3275 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3277 if (add_sections
!= NULL
)
3279 struct section_add
*padd
;
3281 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3283 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3286 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3292 if (update_sections
!= NULL
)
3294 struct section_add
*pupdate
;
3296 for (pupdate
= update_sections
;
3298 pupdate
= pupdate
->next
)
3300 osec
= pupdate
->section
->output_section
;
3301 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3304 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3310 if (merged_note_sections
!= NULL
)
3312 merged_note_section
* merged
= NULL
;
3314 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3316 if (! is_mergeable_note_section (obfd
, osec
))
3320 merged
= merged_note_sections
;
3322 /* It is likely that output sections are in the same order
3323 as the input sections, but do not assume that this is
3325 if (merged
->sec
->output_section
!= osec
)
3327 for (merged
= merged_note_sections
;
3329 merged
= merged
->next
)
3330 if (merged
->sec
->output_section
== osec
)
3335 bfd_nonfatal_message
3337 _("error: failed to locate merged notes"));
3342 if (merged
->contents
== NULL
)
3344 bfd_nonfatal_message
3346 _("error: failed to merge notes"));
3350 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3353 bfd_nonfatal_message
3355 _("error: failed to copy merged notes into output"));
3359 merged
= merged
->next
;
3362 /* Free the memory. */
3363 merged_note_section
* next
;
3364 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3366 next
= merged
->next
;
3367 free (merged
->contents
);
3371 else if (merge_notes
&& ! is_strip
)
3372 non_fatal (_("%s: Could not find any mergeable note sections"),
3373 bfd_get_filename (ibfd
));
3375 if (gnu_debuglink_filename
!= NULL
)
3377 if (! bfd_fill_in_gnu_debuglink_section
3378 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3380 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3381 _("cannot fill debug link section `%s'"),
3382 gnu_debuglink_filename
);
3391 /* Fill in the gaps. */
3394 buf
= (bfd_byte
*) xmalloc (max_gap
);
3395 memset (buf
, gap_fill
, max_gap
);
3397 for (i
= 0; i
< num_sec
; i
++)
3405 off
= bfd_section_size (osections
[i
]) - left
;
3416 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3419 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3435 /* Allow the BFD backend to copy any private data it understands
3436 from the input BFD to the output BFD. This is done last to
3437 permit the routine to look at the filtered symbol table, which is
3438 important for the ECOFF code at least. */
3439 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3441 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3442 _("error copying private BFD data"));
3446 /* Switch to the alternate machine code. We have to do this at the
3447 very end, because we only initialize the header when we create
3448 the first section. */
3449 if (use_alt_mach_code
!= 0)
3451 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3453 non_fatal (_("this target does not support %lu alternative machine codes"),
3455 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3457 non_fatal (_("treating that number as an absolute e_machine value instead"));
3458 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3461 non_fatal (_("ignoring the alternative value"));
3468 /* Read each archive element in turn from IBFD, copy the
3469 contents to temp file, and keep the temp file handle.
3470 If 'force_output_target' is TRUE then make sure that
3471 all elements in the new archive are of the type
3475 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3476 bfd_boolean force_output_target
,
3477 const bfd_arch_info_type
*input_arch
)
3481 struct name_list
*next
;
3485 bfd
**ptr
= &obfd
->archive_head
;
3488 const char *filename
;
3490 /* PR 24281: It is not clear what should happen when copying a thin archive.
3491 One part is straight forward - if the output archive is in a different
3492 directory from the input archive then any relative paths in the library
3493 should be adjusted to the new location. But if any transformation
3494 options are active (eg strip, rename, add, etc) then the implication is
3495 that these should be applied to the files pointed to by the archive.
3496 But since objcopy is not destructive, this means that new files must be
3497 created, and there is no guidance for the names of the new files. (Plus
3498 this conflicts with one of the goals of thin libraries - only taking up
3499 a minimal amount of space in the file system).
3501 So for now we fail if an attempt is made to copy such libraries. */
3502 if (ibfd
->is_thin_archive
)
3505 bfd_set_error (bfd_error_invalid_operation
);
3506 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3507 _("sorry: copying thin archives is not currently supported"));
3511 /* Make a temp directory to hold the contents. */
3512 dir
= make_tempdir (bfd_get_filename (obfd
));
3514 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3517 if (strip_symbols
== STRIP_ALL
)
3518 obfd
->has_armap
= FALSE
;
3520 obfd
->has_armap
= ibfd
->has_armap
;
3521 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3524 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3528 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3530 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3533 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3534 goto cleanup_and_exit
;
3537 while (!status
&& this_element
!= NULL
)
3543 int stat_status
= 0;
3544 bfd_boolean del
= TRUE
;
3545 bfd_boolean ok_object
;
3547 /* PR binutils/17533: Do not allow directory traversal
3548 outside of the current directory tree by archive members. */
3549 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3551 non_fatal (_("illegal pathname found in archive member: %s"),
3552 bfd_get_filename (this_element
));
3554 goto cleanup_and_exit
;
3557 /* Create an output file for this member. */
3558 output_name
= concat (dir
, "/",
3559 bfd_get_filename (this_element
), (char *) 0);
3561 /* If the file already exists, make another temp dir. */
3562 if (stat (output_name
, &buf
) >= 0)
3564 char * tmpdir
= make_tempdir (output_name
);
3569 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3572 goto cleanup_and_exit
;
3575 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3580 output_name
= concat (tmpdir
, "/",
3581 bfd_get_filename (this_element
), (char *) 0);
3586 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3588 if (stat_status
!= 0)
3589 non_fatal (_("internal stat error on %s"),
3590 bfd_get_filename (this_element
));
3593 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3594 l
->name
= output_name
;
3599 ok_object
= bfd_check_format (this_element
, bfd_object
);
3601 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3602 _("Unable to recognise the format of file"));
3604 /* PR binutils/3110: Cope with archives
3605 containing multiple target types. */
3606 if (force_output_target
|| !ok_object
)
3607 output_bfd
= bfd_openw (output_name
, output_target
);
3609 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3611 if (output_bfd
== NULL
)
3613 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3615 goto cleanup_and_exit
;
3620 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3622 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3623 /* Try again as an unknown object file. */
3625 else if (!bfd_close (output_bfd
))
3627 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3628 /* Error in new object file. Don't change archive. */
3635 del
= !copy_unknown_object (this_element
, output_bfd
);
3636 if (!bfd_close_all_done (output_bfd
))
3638 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3639 /* Error in new object file. Don't change archive. */
3646 unlink (output_name
);
3651 if (preserve_dates
&& stat_status
== 0)
3652 set_times (output_name
, &buf
);
3654 /* Open the newly output file and attach to our list. */
3655 output_bfd
= bfd_openr (output_name
, output_target
);
3657 l
->obfd
= output_bfd
;
3660 ptr
= &output_bfd
->archive_next
;
3662 last_element
= this_element
;
3664 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3666 bfd_close (last_element
);
3671 filename
= bfd_get_filename (obfd
);
3672 if (!bfd_close (obfd
))
3675 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3678 filename
= bfd_get_filename (ibfd
);
3679 if (!bfd_close (ibfd
))
3682 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3686 /* Delete all the files that we opened. */
3688 struct name_list
* next
;
3690 for (l
= list
; l
!= NULL
; l
= next
)
3692 if (l
->obfd
== NULL
)
3696 bfd_close (l
->obfd
);
3708 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3710 /* This is only relevant to Coff targets. */
3711 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3714 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3715 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3716 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3720 /* The top-level control. */
3723 copy_file (const char *input_filename
, const char *output_filename
,
3724 const char *input_target
, const char *output_target
,
3725 const bfd_arch_info_type
*input_arch
)
3728 char **obj_matching
;
3729 char **core_matching
;
3730 off_t size
= get_file_size (input_filename
);
3735 non_fatal (_("error: the input file '%s' is empty"),
3741 /* To allow us to do "strip *" without dying on the first
3742 non-object file, failures are nonfatal. */
3743 ibfd
= bfd_openr (input_filename
, input_target
);
3746 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3751 switch (do_debug_sections
)
3755 case compress_gnu_zlib
:
3756 case compress_gabi_zlib
:
3757 ibfd
->flags
|= BFD_COMPRESS
;
3758 /* Don't check if input is ELF here since this information is
3759 only available after bfd_check_format_matches is called. */
3760 if (do_debug_sections
!= compress_gnu_zlib
)
3761 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3764 ibfd
->flags
|= BFD_DECOMPRESS
;
3770 switch (do_elf_stt_common
)
3772 case elf_stt_common
:
3773 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3776 case no_elf_stt_common
:
3777 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3783 if (bfd_check_format (ibfd
, bfd_archive
))
3785 bfd_boolean force_output_target
;
3788 /* bfd_get_target does not return the correct value until
3789 bfd_check_format succeeds. */
3790 if (output_target
== NULL
)
3792 output_target
= bfd_get_target (ibfd
);
3793 force_output_target
= FALSE
;
3796 force_output_target
= TRUE
;
3798 obfd
= bfd_openw (output_filename
, output_target
);
3801 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3806 if (gnu_debuglink_filename
!= NULL
)
3808 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3809 bfd_get_filename (ibfd
));
3810 gnu_debuglink_filename
= NULL
;
3813 /* This is a no-op on non-Coff targets. */
3814 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3816 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3818 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3823 /* bfd_get_target does not return the correct value until
3824 bfd_check_format succeeds. */
3825 if (output_target
== NULL
)
3826 output_target
= bfd_get_target (ibfd
);
3828 obfd
= bfd_openw (output_filename
, output_target
);
3831 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3835 /* This is a no-op on non-Coff targets. */
3836 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3838 if (! copy_object (ibfd
, obfd
, input_arch
))
3841 /* PR 17512: file: 0f15796a.
3842 If the file could not be copied it may not be in a writeable
3843 state. So use bfd_close_all_done to avoid the possibility of
3844 writing uninitialised data into the file. */
3845 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3848 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3852 if (!bfd_close (ibfd
))
3855 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3861 bfd_error_type obj_error
= bfd_get_error ();
3862 bfd_error_type core_error
;
3864 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3866 /* This probably can't happen.. */
3867 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3868 free (obj_matching
);
3872 core_error
= bfd_get_error ();
3873 /* Report the object error in preference to the core error. */
3874 if (obj_error
!= core_error
)
3875 bfd_set_error (obj_error
);
3877 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3879 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3881 list_matching_formats (obj_matching
);
3882 free (obj_matching
);
3884 if (core_error
== bfd_error_file_ambiguously_recognized
)
3886 list_matching_formats (core_matching
);
3887 free (core_matching
);
3894 /* Add a name to the section renaming list. */
3897 add_section_rename (const char * old_name
, const char * new_name
,
3900 section_rename
* srename
;
3902 /* Check for conflicts first. */
3903 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3904 if (strcmp (srename
->old_name
, old_name
) == 0)
3906 /* Silently ignore duplicate definitions. */
3907 if (strcmp (srename
->new_name
, new_name
) == 0
3908 && srename
->flags
== flags
)
3911 fatal (_("Multiple renames of section %s"), old_name
);
3914 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3916 srename
->old_name
= old_name
;
3917 srename
->new_name
= new_name
;
3918 srename
->flags
= flags
;
3919 srename
->next
= section_rename_list
;
3921 section_rename_list
= srename
;
3924 /* Check the section rename list for a new name of the input section
3925 called OLD_NAME. Returns the new name if one is found and sets
3926 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3929 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3931 const section_rename
*srename
;
3933 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3934 if (strcmp (srename
->old_name
, old_name
) == 0)
3936 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3937 *returned_flags
= srename
->flags
;
3939 return srename
->new_name
;
3945 /* Once each of the sections is copied, we may still need to do some
3946 finalization work for private section headers. Do that here. */
3949 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3951 /* Allow the BFD backend to copy any private data it understands
3952 from the input section to the output section. */
3953 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3956 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3957 _("error in private header data"));
3961 /* All went well. */
3965 /* Create a section in OBFD with the same
3966 name and attributes as ISECTION in IBFD. */
3969 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3971 bfd
*obfd
= (bfd
*) obfdarg
;
3972 struct section_list
*p
;
3980 const char * new_name
;
3981 char *prefix
= NULL
;
3982 bfd_boolean make_nobits
;
3983 unsigned int alignment
;
3985 if (is_strip_section (ibfd
, isection
))
3988 /* Get the, possibly new, name of the output section. */
3989 name
= bfd_section_name (isection
);
3990 flags
= bfd_section_flags (isection
);
3991 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3993 flags
&= bfd_applicable_section_flags (ibfd
);
3994 flags
&= bfd_applicable_section_flags (obfd
);
3996 new_name
= find_section_rename (name
, &flags
);
3997 if (new_name
!= name
)
4000 flags
= check_new_section_flags (flags
, obfd
, name
);
4003 /* Prefix sections. */
4004 if (prefix_alloc_sections_string
4005 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
4006 prefix
= prefix_alloc_sections_string
;
4007 else if (prefix_sections_string
)
4008 prefix
= prefix_sections_string
;
4014 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4020 make_nobits
= FALSE
;
4022 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4023 SECTION_CONTEXT_SET_FLAGS
);
4026 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4027 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4029 else if (strip_symbols
== STRIP_NONDEBUG
4030 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4031 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4033 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4034 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4038 /* Twiddle the input section flags so that it seems to
4039 elf.c:copy_private_bfd_data that section flags have not
4040 changed between input and output sections. This hack
4041 prevents wholesale rewriting of the program headers. */
4042 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4046 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4048 if (osection
== NULL
)
4050 err
= _("failed to create output section");
4055 elf_section_type (osection
) = SHT_NOBITS
;
4057 size
= bfd_section_size (isection
);
4058 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4060 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4061 else if (extract_symbol
)
4063 if (!bfd_set_section_size (osection
, size
))
4065 err
= _("failed to set size");
4069 vma
= bfd_section_vma (isection
);
4070 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4071 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4074 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4080 vma
+= change_section_address
;
4082 if (!bfd_set_section_vma (osection
, vma
))
4084 err
= _("failed to set vma");
4088 lma
= isection
->lma
;
4089 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4090 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4093 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4099 lma
+= change_section_address
;
4101 osection
->lma
= lma
;
4103 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4104 SECTION_CONTEXT_SET_ALIGNMENT
);
4106 alignment
= p
->alignment
;
4108 alignment
= bfd_section_alignment (isection
);
4110 /* FIXME: This is probably not enough. If we change the LMA we
4111 may have to recompute the header for the file as well. */
4112 if (!bfd_set_section_alignment (osection
, alignment
))
4114 err
= _("failed to set alignment");
4118 /* Copy merge entity size. */
4119 osection
->entsize
= isection
->entsize
;
4121 /* Copy compress status. */
4122 osection
->compress_status
= isection
->compress_status
;
4124 /* This used to be mangle_section; we do here to avoid using
4125 bfd_get_section_by_name since some formats allow multiple
4126 sections with the same name. */
4127 isection
->output_section
= osection
;
4128 isection
->output_offset
= 0;
4130 if ((isection
->flags
& SEC_GROUP
) != 0)
4132 asymbol
*gsym
= group_signature (isection
);
4136 gsym
->flags
|= BSF_KEEP
;
4137 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4138 elf_group_id (isection
) = gsym
;
4142 /* Allow the BFD backend to copy any private data it understands
4143 from the input section to the output section. */
4144 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4146 err
= _("failed to copy private data");
4150 /* All went well. */
4155 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4158 /* Return TRUE if input section ISECTION should be skipped. */
4161 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4167 /* If we have already failed earlier on,
4168 do not keep on generating complaints now. */
4175 if (is_strip_section (ibfd
, isection
))
4178 if (is_update_section (ibfd
, isection
))
4181 /* When merging a note section we skip the copying of the contents,
4182 but not the copying of the relocs associated with the contents. */
4183 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4186 flags
= bfd_section_flags (isection
);
4187 if ((flags
& SEC_GROUP
) != 0)
4190 osection
= isection
->output_section
;
4191 size
= bfd_section_size (isection
);
4193 if (size
== 0 || osection
== 0)
4199 /* Add section SECTION_PATTERN to the list of sections that will have their
4200 relocations removed. */
4203 handle_remove_relocations_option (const char *section_pattern
)
4205 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4208 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4209 otherwise return FALSE. If the user has requested that relocations be
4210 removed from a section that does not have relocations then this
4211 function will still return TRUE. */
4214 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4216 return (find_section_list (bfd_section_name (isection
), FALSE
,
4217 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4220 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4221 A special case is detected here, if the user asks to remove a relocation
4222 section (one starting with ".rela" or ".rel") then this removal must
4223 be done using a different technique in a relocatable object. */
4226 handle_remove_section_option (const char *section_pattern
)
4228 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4229 if (strncmp (section_pattern
, ".rel", 4) == 0)
4231 section_pattern
+= 4;
4232 if (*section_pattern
== 'a')
4234 if (*section_pattern
)
4235 handle_remove_relocations_option (section_pattern
);
4237 sections_removed
= TRUE
;
4240 /* Copy relocations in input section ISECTION of IBFD to an output
4241 section with the same name in OBFDARG. If stripping then don't
4242 copy any relocation info. */
4245 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4247 bfd
*obfd
= (bfd
*) obfdarg
;
4253 if (skip_section (ibfd
, isection
, FALSE
))
4256 osection
= isection
->output_section
;
4258 /* Core files and DWO files do not need to be relocated. */
4259 if (bfd_get_format (obfd
) == bfd_core
4260 || strip_symbols
== STRIP_NONDWO
4261 || discard_relocations (ibfd
, isection
))
4265 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4269 /* Do not complain if the target does not support relocations. */
4270 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4275 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4283 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4284 osection
->flags
&= ~SEC_RELOC
;
4288 if (isection
->orelocation
!= NULL
)
4290 /* Some other function has already set up the output relocs
4291 for us, so scan those instead of the default relocs. */
4292 relcount
= isection
->reloc_count
;
4293 relpp
= isection
->orelocation
;
4297 relpp
= (arelent
**) xmalloc (relsize
);
4298 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4302 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4303 _("relocation count is negative"));
4309 if (strip_symbols
== STRIP_ALL
)
4311 /* Remove relocations which are not in
4312 keep_strip_specific_list. */
4313 arelent
**temp_relpp
;
4314 long temp_relcount
= 0;
4317 temp_relpp
= (arelent
**) xmalloc (relsize
);
4318 for (i
= 0; i
< relcount
; i
++)
4320 /* PR 17512: file: 9e907e0c. */
4321 if (relpp
[i
]->sym_ptr_ptr
4323 && * relpp
[i
]->sym_ptr_ptr
)
4324 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4325 keep_specific_htab
))
4326 temp_relpp
[temp_relcount
++] = relpp
[i
];
4328 relcount
= temp_relcount
;
4329 if (relpp
!= isection
->orelocation
)
4334 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4337 osection
->flags
&= ~SEC_RELOC
;
4338 if (relpp
!= isection
->orelocation
)
4344 /* Copy the data of input section ISECTION of IBFD
4345 to an output section with the same name in OBFD. */
4348 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4350 bfd
*obfd
= (bfd
*) obfdarg
;
4351 struct section_list
*p
;
4355 if (skip_section (ibfd
, isection
, TRUE
))
4358 osection
= isection
->output_section
;
4359 /* The output SHF_COMPRESSED section size is different from input if
4360 ELF classes of input and output aren't the same. We can't use
4361 the output section size since --interleave will shrink the output
4362 section. Size will be updated if the section is converted. */
4363 size
= bfd_section_size (isection
);
4365 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4366 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4368 bfd_byte
*memhunk
= NULL
;
4370 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4371 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4375 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4382 /* We don't handle leftover bytes (too many possible behaviors,
4383 and we don't know what the user wants). The section length
4384 must be a multiple of the number of bytes to swap. */
4385 if ((size
% reverse_bytes
) == 0)
4390 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4391 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4393 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4396 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4397 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4401 /* User must pad the section up in order to do this. */
4402 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4403 bfd_section_name (isection
), reverse_bytes
);
4408 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4409 char *from
= (char *) memhunk
+ copy_byte
;
4410 char *to
= (char *) memhunk
;
4411 char *end
= (char *) memhunk
+ size
;
4414 /* If the section address is not exactly divisible by the interleave,
4415 then we must bias the from address. If the copy_byte is less than
4416 the bias, then we must skip forward one interleave, and increment
4418 int extra
= isection
->lma
% interleave
;
4420 if (copy_byte
< extra
)
4423 for (; from
< end
; from
+= interleave
)
4424 for (i
= 0; i
< copy_width
; i
++)
4426 if (&from
[i
] >= end
)
4431 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4432 osection
->lma
/= interleave
;
4433 if (copy_byte
< extra
)
4437 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4440 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4446 else if ((p
= find_section_list (bfd_section_name (isection
),
4447 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4448 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4450 void *memhunk
= xmalloc (size
);
4452 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4453 flag--they can just remove the section entirely and add it
4454 back again. However, we do permit them to turn on the
4455 SEC_HAS_CONTENTS flag, and take it to mean that the section
4456 contents should be zeroed out. */
4458 memset (memhunk
, 0, size
);
4459 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4462 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4470 /* Get all the sections. This is used when --gap-fill or --pad-to is
4474 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4476 asection
***secppp
= (asection
***) secppparg
;
4478 **secppp
= osection
;
4482 /* Sort sections by LMA. This is called via qsort, and is used when
4483 --gap-fill or --pad-to is used. We force non loadable or empty
4484 sections to the front, where they are easier to ignore. */
4487 compare_section_lma (const void *arg1
, const void *arg2
)
4489 const asection
*sec1
= *(const asection
**) arg1
;
4490 const asection
*sec2
= *(const asection
**) arg2
;
4491 flagword flags1
, flags2
;
4493 /* Sort non loadable sections to the front. */
4494 flags1
= sec1
->flags
;
4495 flags2
= sec2
->flags
;
4496 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4497 || (flags1
& SEC_LOAD
) == 0)
4499 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4500 && (flags2
& SEC_LOAD
) != 0)
4505 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4506 || (flags2
& SEC_LOAD
) == 0)
4510 /* Sort sections by LMA. */
4511 if (sec1
->lma
> sec2
->lma
)
4513 if (sec1
->lma
< sec2
->lma
)
4516 /* Sort sections with the same LMA by size. */
4517 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4519 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4522 if (sec1
->id
> sec2
->id
)
4524 if (sec1
->id
< sec2
->id
)
4529 /* Mark all the symbols which will be used in output relocations with
4530 the BSF_KEEP flag so that those symbols will not be stripped.
4532 Ignore relocations which will not appear in the output file. */
4535 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4537 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4542 /* Ignore an input section with no corresponding output section. */
4543 if (isection
->output_section
== NULL
)
4546 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4549 /* Do not complain if the target does not support relocations. */
4550 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4552 bfd_fatal (bfd_get_filename (ibfd
));
4558 relpp
= (arelent
**) xmalloc (relsize
);
4559 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4561 bfd_fatal (bfd_get_filename (ibfd
));
4563 /* Examine each symbol used in a relocation. If it's not one of the
4564 special bfd section symbols, then mark it with BSF_KEEP. */
4565 for (i
= 0; i
< relcount
; i
++)
4567 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4568 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4569 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4570 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4571 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4572 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4573 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4580 /* Write out debugging information. */
4583 write_debugging_info (bfd
*obfd
, void *dhandle
,
4584 long *symcountp ATTRIBUTE_UNUSED
,
4585 asymbol
***symppp ATTRIBUTE_UNUSED
)
4587 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4588 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4590 bfd_byte
*syms
, *strings
= NULL
;
4591 bfd_size_type symsize
, stringsize
;
4592 asection
*stabsec
, *stabstrsec
;
4595 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4600 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4601 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4602 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4604 || stabstrsec
== NULL
4605 || !bfd_set_section_size (stabsec
, symsize
)
4606 || !bfd_set_section_size (stabstrsec
, stringsize
)
4607 || !bfd_set_section_alignment (stabsec
, 2)
4608 || !bfd_set_section_alignment (stabstrsec
, 0))
4610 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4611 _("can't create debugging section"));
4616 /* We can get away with setting the section contents now because
4617 the next thing the caller is going to do is copy over the
4618 real sections. We may someday have to split the contents
4619 setting out of this function. */
4620 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4621 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4624 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4625 _("can't set debugging section contents"));
4633 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4634 _("don't know how to write debugging information for %s"),
4635 bfd_get_target (obfd
));
4639 /* If neither -D nor -U was specified explicitly,
4640 then use the configured default. */
4642 default_deterministic (void)
4644 if (deterministic
< 0)
4645 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4649 strip_main (int argc
, char *argv
[])
4651 char *input_target
= NULL
;
4652 char *output_target
= NULL
;
4653 bfd_boolean show_version
= FALSE
;
4654 bfd_boolean formats_info
= FALSE
;
4657 char *output_file
= NULL
;
4658 bfd_boolean merge_notes_set
= FALSE
;
4660 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4661 strip_options
, (int *) 0)) != EOF
)
4666 input_target
= optarg
;
4669 output_target
= optarg
;
4672 input_target
= output_target
= optarg
;
4675 handle_remove_section_option (optarg
);
4677 case OPTION_KEEP_SECTION
:
4678 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4680 case OPTION_REMOVE_RELOCS
:
4681 handle_remove_relocations_option (optarg
);
4684 strip_symbols
= STRIP_ALL
;
4688 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4689 strip_symbols
= STRIP_DEBUG
;
4691 case OPTION_STRIP_DWO
:
4692 strip_symbols
= STRIP_DWO
;
4694 case OPTION_STRIP_UNNEEDED
:
4695 strip_symbols
= STRIP_UNNEEDED
;
4698 add_specific_symbol (optarg
, keep_specific_htab
);
4702 merge_notes_set
= TRUE
;
4704 case OPTION_NO_MERGE_NOTES
:
4705 merge_notes
= FALSE
;
4706 merge_notes_set
= TRUE
;
4709 add_specific_symbol (optarg
, strip_specific_htab
);
4712 output_file
= optarg
;
4715 preserve_dates
= TRUE
;
4718 deterministic
= TRUE
;
4721 deterministic
= FALSE
;
4724 discard_locals
= LOCALS_ALL
;
4727 discard_locals
= LOCALS_START_L
;
4733 show_version
= TRUE
;
4735 case OPTION_FORMATS_INFO
:
4736 formats_info
= TRUE
;
4738 case OPTION_ONLY_KEEP_DEBUG
:
4739 strip_symbols
= STRIP_NONDEBUG
;
4741 case OPTION_KEEP_FILE_SYMBOLS
:
4742 keep_file_symbols
= 1;
4745 /* We've been given a long option. */
4752 strip_usage (stdout
, 0);
4754 strip_usage (stderr
, 1);
4758 /* If the user has not expressly chosen to merge/not-merge ELF notes
4759 then enable the merging unless we are stripping debug or dwo info. */
4760 if (! merge_notes_set
4761 && (strip_symbols
== STRIP_UNDEF
4762 || strip_symbols
== STRIP_ALL
4763 || strip_symbols
== STRIP_UNNEEDED
4764 || strip_symbols
== STRIP_NONDEBUG
4765 || strip_symbols
== STRIP_NONDWO
))
4775 print_version ("strip");
4777 default_deterministic ();
4779 /* Default is to strip all symbols. */
4780 if (strip_symbols
== STRIP_UNDEF
4781 && discard_locals
== LOCALS_UNDEF
4782 && htab_elements (strip_specific_htab
) == 0)
4783 strip_symbols
= STRIP_ALL
;
4785 if (output_target
== NULL
)
4786 output_target
= input_target
;
4790 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4791 strip_usage (stderr
, 1);
4793 for (; i
< argc
; i
++)
4795 int hold_status
= status
;
4796 struct stat statbuf
;
4799 if (get_file_size (argv
[i
]) < 1)
4806 /* No need to check the return value of stat().
4807 It has already been checked in get_file_size(). */
4808 stat (argv
[i
], &statbuf
);
4810 if (output_file
== NULL
4811 || filename_cmp (argv
[i
], output_file
) == 0)
4812 tmpname
= make_tempname (argv
[i
]);
4814 tmpname
= output_file
;
4816 if (tmpname
== NULL
)
4818 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4819 _("could not create temporary file to hold stripped copy"));
4825 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4829 set_times (tmpname
, &statbuf
);
4830 if (output_file
!= tmpname
)
4831 status
= (smart_rename (tmpname
,
4832 output_file
? output_file
: argv
[i
],
4833 preserve_dates
) != 0);
4835 status
= hold_status
;
4838 unlink_if_ordinary (tmpname
);
4839 if (output_file
!= tmpname
)
4846 /* Set up PE subsystem. */
4849 set_pe_subsystem (const char *s
)
4851 const char *version
, *subsystem
;
4861 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4862 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4863 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4864 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4865 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4866 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4867 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4868 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4869 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4870 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4876 /* Check for the presence of a version number. */
4877 version
= strchr (s
, ':');
4878 if (version
== NULL
)
4882 int len
= version
- s
;
4886 version
= copy
+ 1 + len
;
4887 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4889 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4891 non_fatal (_("%s: bad version in PE subsystem"), s
);
4894 /* Check for numeric subsystem. */
4895 value
= (short) strtol (subsystem
, ©
, 0);
4898 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4899 if (v
[i
].value
== value
)
4901 pe_subsystem
= value
;
4902 set_def
= v
[i
].set_def
;
4908 /* Search for subsystem by name. */
4909 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4910 if (strcmp (subsystem
, v
[i
].name
) == 0)
4912 pe_subsystem
= v
[i
].value
;
4913 set_def
= v
[i
].set_def
;
4921 fatal (_("unknown PE subsystem: %s"), s
);
4926 if (pe_file_alignment
== (bfd_vma
) -1)
4927 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4928 if (pe_section_alignment
== (bfd_vma
) -1)
4929 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4933 free ((char *) subsystem
);
4936 /* Convert EFI target to PEI target. */
4939 convert_efi_target (char *efi
)
4945 if (strcmp (efi
+ 4, "ia32") == 0)
4947 /* Change ia32 to i386. */
4952 else if (strcmp (efi
+ 4, "x86_64") == 0)
4954 /* Change x86_64 to x86-64. */
4959 /* Allocate and return a pointer to a struct section_add, initializing the
4960 structure using ARG, a string in the format "sectionname=filename".
4961 The returned structure will have its next pointer set to NEXT. The
4962 OPTION field is the name of the command line option currently being
4963 parsed, and is only used if an error needs to be reported. */
4965 static struct section_add
*
4966 init_section_add (const char *arg
,
4967 struct section_add
*next
,
4970 struct section_add
*pa
;
4973 s
= strchr (arg
, '=');
4975 fatal (_("bad format for %s"), option
);
4977 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4978 pa
->name
= xstrndup (arg
, s
- arg
);
4979 pa
->filename
= s
+ 1;
4981 pa
->contents
= NULL
;
4987 /* Load the file specified in PA, allocating memory to hold the file
4988 contents, and store a pointer to the allocated memory in the contents
4989 field of PA. The size field of PA is also updated. All errors call
4993 section_add_load_file (struct section_add
*pa
)
4998 /* We don't use get_file_size so that we can do
4999 --add-section .note.GNU_stack=/dev/null
5000 get_file_size doesn't work on /dev/null. */
5002 f
= fopen (pa
->filename
, FOPEN_RB
);
5004 fatal (_("cannot open: %s: %s"),
5005 pa
->filename
, strerror (errno
));
5009 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5017 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5020 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5022 fatal (_("%s: fread failed"), pa
->filename
);
5033 copy_main (int argc
, char *argv
[])
5035 char *input_filename
= NULL
;
5036 char *output_filename
= NULL
;
5038 char *input_target
= NULL
;
5039 char *output_target
= NULL
;
5040 bfd_boolean show_version
= FALSE
;
5041 bfd_boolean change_warn
= TRUE
;
5042 bfd_boolean formats_info
= FALSE
;
5043 bfd_boolean use_globalize
= FALSE
;
5044 bfd_boolean use_keep_global
= FALSE
;
5046 struct stat statbuf
;
5047 const bfd_arch_info_type
*input_arch
= NULL
;
5049 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5050 copy_options
, (int *) 0)) != EOF
)
5055 copy_byte
= atoi (optarg
);
5057 fatal (_("byte number must be non-negative"));
5061 input_arch
= bfd_scan_arch (optarg
);
5062 if (input_arch
== NULL
)
5063 fatal (_("architecture %s unknown"), optarg
);
5069 interleave
= atoi (optarg
);
5071 fatal (_("interleave must be positive"));
5077 case OPTION_INTERLEAVE_WIDTH
:
5078 copy_width
= atoi (optarg
);
5080 fatal(_("interleave width must be positive"));
5084 case 's': /* "source" - 'I' is preferred */
5085 input_target
= optarg
;
5089 case 'd': /* "destination" - 'O' is preferred */
5090 output_target
= optarg
;
5094 input_target
= output_target
= optarg
;
5098 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5099 sections_copied
= TRUE
;
5103 handle_remove_section_option (optarg
);
5106 case OPTION_KEEP_SECTION
:
5107 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5110 case OPTION_REMOVE_RELOCS
:
5111 handle_remove_relocations_option (optarg
);
5115 strip_symbols
= STRIP_ALL
;
5119 strip_symbols
= STRIP_DEBUG
;
5122 case OPTION_STRIP_DWO
:
5123 strip_symbols
= STRIP_DWO
;
5126 case OPTION_STRIP_UNNEEDED
:
5127 strip_symbols
= STRIP_UNNEEDED
;
5130 case OPTION_ONLY_KEEP_DEBUG
:
5131 strip_symbols
= STRIP_NONDEBUG
;
5134 case OPTION_KEEP_FILE_SYMBOLS
:
5135 keep_file_symbols
= 1;
5138 case OPTION_ADD_GNU_DEBUGLINK
:
5139 long_section_names
= ENABLE
;
5140 gnu_debuglink_filename
= optarg
;
5144 add_specific_symbol (optarg
, keep_specific_htab
);
5150 case OPTION_NO_MERGE_NOTES
:
5151 merge_notes
= FALSE
;
5155 add_specific_symbol (optarg
, strip_specific_htab
);
5158 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5159 add_specific_symbol (optarg
, strip_unneeded_htab
);
5163 add_specific_symbol (optarg
, localize_specific_htab
);
5166 case OPTION_GLOBALIZE_SYMBOL
:
5167 use_globalize
= TRUE
;
5168 add_specific_symbol (optarg
, globalize_specific_htab
);
5172 use_keep_global
= TRUE
;
5173 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5177 add_specific_symbol (optarg
, weaken_specific_htab
);
5181 preserve_dates
= TRUE
;
5185 deterministic
= TRUE
;
5189 deterministic
= FALSE
;
5197 discard_locals
= LOCALS_ALL
;
5201 discard_locals
= LOCALS_START_L
;
5209 show_version
= TRUE
;
5212 case OPTION_FORMATS_INFO
:
5213 formats_info
= TRUE
;
5220 case OPTION_ADD_SECTION
:
5221 add_sections
= init_section_add (optarg
, add_sections
,
5223 section_add_load_file (add_sections
);
5226 case OPTION_UPDATE_SECTION
:
5227 update_sections
= init_section_add (optarg
, update_sections
,
5228 "--update-section");
5229 section_add_load_file (update_sections
);
5232 case OPTION_DUMP_SECTION
:
5233 dump_sections
= init_section_add (optarg
, dump_sections
,
5237 case OPTION_ADD_SYMBOL
:
5240 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5242 newsym
->next
= NULL
;
5243 s
= strchr (optarg
, '=');
5245 fatal (_("bad format for %s"), "--add-symbol");
5246 t
= strchr (s
+ 1, ':');
5248 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5251 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5252 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5256 newsym
->section
= NULL
;
5257 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5261 t
= strchr (t
+ 1, ',');
5262 newsym
->othersym
= NULL
;
5264 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5266 newsym
->flags
= BSF_GLOBAL
;
5268 /* Keep 'othersym' symbols at the front of the list. */
5269 if (newsym
->othersym
)
5271 newsym
->next
= add_sym_list
;
5273 add_sym_tail
= &newsym
->next
;
5274 add_sym_list
= newsym
;
5278 *add_sym_tail
= newsym
;
5279 add_sym_tail
= &newsym
->next
;
5285 case OPTION_CHANGE_START
:
5286 change_start
= parse_vma (optarg
, "--change-start");
5289 case OPTION_CHANGE_SECTION_ADDRESS
:
5290 case OPTION_CHANGE_SECTION_LMA
:
5291 case OPTION_CHANGE_SECTION_VMA
:
5293 struct section_list
* p
;
5294 unsigned int context
= 0;
5298 char *option
= NULL
;
5303 case OPTION_CHANGE_SECTION_ADDRESS
:
5304 option
= "--change-section-address";
5305 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5307 case OPTION_CHANGE_SECTION_LMA
:
5308 option
= "--change-section-lma";
5309 context
= SECTION_CONTEXT_ALTER_LMA
;
5311 case OPTION_CHANGE_SECTION_VMA
:
5312 option
= "--change-section-vma";
5313 context
= SECTION_CONTEXT_ALTER_VMA
;
5317 s
= strchr (optarg
, '=');
5320 s
= strchr (optarg
, '+');
5323 s
= strchr (optarg
, '-');
5325 fatal (_("bad format for %s"), option
);
5330 /* Correct the context. */
5333 case OPTION_CHANGE_SECTION_ADDRESS
:
5334 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5336 case OPTION_CHANGE_SECTION_LMA
:
5337 context
= SECTION_CONTEXT_SET_LMA
;
5339 case OPTION_CHANGE_SECTION_VMA
:
5340 context
= SECTION_CONTEXT_SET_VMA
;
5346 name
= (char *) xmalloc (len
+ 1);
5347 strncpy (name
, optarg
, len
);
5350 p
= find_section_list (name
, TRUE
, context
);
5352 val
= parse_vma (s
+ 1, option
);
5358 case OPTION_CHANGE_SECTION_ADDRESS
:
5362 case OPTION_CHANGE_SECTION_LMA
:
5366 case OPTION_CHANGE_SECTION_VMA
:
5373 case OPTION_CHANGE_ADDRESSES
:
5374 change_section_address
= parse_vma (optarg
, "--change-addresses");
5375 change_start
= change_section_address
;
5378 case OPTION_CHANGE_WARNINGS
:
5382 case OPTION_CHANGE_LEADING_CHAR
:
5383 change_leading_char
= TRUE
;
5386 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5389 if (strcasecmp (optarg
, "none") == 0)
5390 do_debug_sections
= decompress
;
5391 else if (strcasecmp (optarg
, "zlib") == 0)
5392 do_debug_sections
= compress_zlib
;
5393 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5394 do_debug_sections
= compress_gnu_zlib
;
5395 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5396 do_debug_sections
= compress_gabi_zlib
;
5398 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5402 do_debug_sections
= compress
;
5405 case OPTION_DEBUGGING
:
5406 convert_debugging
= TRUE
;
5409 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5410 do_debug_sections
= decompress
;
5413 case OPTION_ELF_STT_COMMON
:
5414 if (strcasecmp (optarg
, "yes") == 0)
5415 do_elf_stt_common
= elf_stt_common
;
5416 else if (strcasecmp (optarg
, "no") == 0)
5417 do_elf_stt_common
= no_elf_stt_common
;
5419 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5423 case OPTION_GAP_FILL
:
5425 bfd_vma gap_fill_vma
;
5427 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5428 gap_fill
= (bfd_byte
) gap_fill_vma
;
5429 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5433 sprintf_vma (buff
, gap_fill_vma
);
5435 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5438 gap_fill_set
= TRUE
;
5442 case OPTION_NO_CHANGE_WARNINGS
:
5443 change_warn
= FALSE
;
5447 pad_to
= parse_vma (optarg
, "--pad-to");
5451 case OPTION_REMOVE_LEADING_CHAR
:
5452 remove_leading_char
= TRUE
;
5455 case OPTION_REDEFINE_SYM
:
5457 /* Insert this redefinition onto redefine_specific_htab. */
5461 const char *nextarg
;
5462 char *source
, *target
;
5464 s
= strchr (optarg
, '=');
5466 fatal (_("bad format for %s"), "--redefine-sym");
5469 source
= (char *) xmalloc (len
+ 1);
5470 strncpy (source
, optarg
, len
);
5474 len
= strlen (nextarg
);
5475 target
= (char *) xmalloc (len
+ 1);
5476 strcpy (target
, nextarg
);
5478 add_redefine_and_check ("--redefine-sym", source
, target
);
5485 case OPTION_REDEFINE_SYMS
:
5486 add_redefine_syms_file (optarg
);
5489 case OPTION_SET_SECTION_FLAGS
:
5491 struct section_list
*p
;
5496 s
= strchr (optarg
, '=');
5498 fatal (_("bad format for %s"), "--set-section-flags");
5501 name
= (char *) xmalloc (len
+ 1);
5502 strncpy (name
, optarg
, len
);
5505 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5507 p
->flags
= parse_flags (s
+ 1);
5511 case OPTION_SET_SECTION_ALIGNMENT
:
5513 struct section_list
*p
;
5519 s
= strchr (optarg
, '=');
5521 fatal (_("bad format for --set-section-alignment: argument needed"));
5523 align
= atoi (s
+ 1);
5525 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5527 /* Convert integer alignment into a power-of-two alignment. */
5529 while ((align
& 1) == 0)
5536 /* Number has more than on 1, i.e. wasn't a power of 2. */
5537 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5539 /* Add the alignment setting to the section list. */
5541 name
= (char *) xmalloc (len
+ 1);
5542 strncpy (name
, optarg
, len
);
5545 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5547 p
->alignment
= palign
;
5551 case OPTION_RENAME_SECTION
:
5554 const char *eq
, *fl
;
5559 eq
= strchr (optarg
, '=');
5561 fatal (_("bad format for %s"), "--rename-section");
5565 fatal (_("bad format for %s"), "--rename-section");
5567 old_name
= (char *) xmalloc (len
+ 1);
5568 strncpy (old_name
, optarg
, len
);
5572 fl
= strchr (eq
, ',');
5575 flags
= parse_flags (fl
+ 1);
5585 fatal (_("bad format for %s"), "--rename-section");
5587 new_name
= (char *) xmalloc (len
+ 1);
5588 strncpy (new_name
, eq
, len
);
5591 add_section_rename (old_name
, new_name
, flags
);
5595 case OPTION_SET_START
:
5596 set_start
= parse_vma (optarg
, "--set-start");
5597 set_start_set
= TRUE
;
5600 case OPTION_SREC_LEN
:
5601 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5604 case OPTION_SREC_FORCES3
:
5605 _bfd_srec_forceS3
= TRUE
;
5608 case OPTION_STRIP_SYMBOLS
:
5609 add_specific_symbols (optarg
, strip_specific_htab
,
5610 &strip_specific_buffer
);
5613 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5614 add_specific_symbols (optarg
, strip_unneeded_htab
,
5615 &strip_unneeded_buffer
);
5618 case OPTION_KEEP_SYMBOLS
:
5619 add_specific_symbols (optarg
, keep_specific_htab
,
5620 &keep_specific_buffer
);
5623 case OPTION_LOCALIZE_HIDDEN
:
5624 localize_hidden
= TRUE
;
5627 case OPTION_LOCALIZE_SYMBOLS
:
5628 add_specific_symbols (optarg
, localize_specific_htab
,
5629 &localize_specific_buffer
);
5632 case OPTION_LONG_SECTION_NAMES
:
5633 if (!strcmp ("enable", optarg
))
5634 long_section_names
= ENABLE
;
5635 else if (!strcmp ("disable", optarg
))
5636 long_section_names
= DISABLE
;
5637 else if (!strcmp ("keep", optarg
))
5638 long_section_names
= KEEP
;
5640 fatal (_("unknown long section names option '%s'"), optarg
);
5643 case OPTION_GLOBALIZE_SYMBOLS
:
5644 use_globalize
= TRUE
;
5645 add_specific_symbols (optarg
, globalize_specific_htab
,
5646 &globalize_specific_buffer
);
5649 case OPTION_KEEPGLOBAL_SYMBOLS
:
5650 use_keep_global
= TRUE
;
5651 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5652 &keepglobal_specific_buffer
);
5655 case OPTION_WEAKEN_SYMBOLS
:
5656 add_specific_symbols (optarg
, weaken_specific_htab
,
5657 &weaken_specific_buffer
);
5660 case OPTION_ALT_MACH_CODE
:
5661 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5662 if (use_alt_mach_code
== 0)
5663 fatal (_("unable to parse alternative machine code"));
5666 case OPTION_PREFIX_SYMBOLS
:
5667 prefix_symbols_string
= optarg
;
5670 case OPTION_PREFIX_SECTIONS
:
5671 prefix_sections_string
= optarg
;
5674 case OPTION_PREFIX_ALLOC_SECTIONS
:
5675 prefix_alloc_sections_string
= optarg
;
5678 case OPTION_READONLY_TEXT
:
5679 bfd_flags_to_set
|= WP_TEXT
;
5680 bfd_flags_to_clear
&= ~WP_TEXT
;
5683 case OPTION_WRITABLE_TEXT
:
5684 bfd_flags_to_clear
|= WP_TEXT
;
5685 bfd_flags_to_set
&= ~WP_TEXT
;
5689 bfd_flags_to_set
|= D_PAGED
;
5690 bfd_flags_to_clear
&= ~D_PAGED
;
5694 bfd_flags_to_clear
|= D_PAGED
;
5695 bfd_flags_to_set
&= ~D_PAGED
;
5698 case OPTION_EXTRACT_DWO
:
5699 strip_symbols
= STRIP_NONDWO
;
5702 case OPTION_EXTRACT_SYMBOL
:
5703 extract_symbol
= TRUE
;
5706 case OPTION_REVERSE_BYTES
:
5708 int prev
= reverse_bytes
;
5710 reverse_bytes
= atoi (optarg
);
5711 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5712 fatal (_("number of bytes to reverse must be positive and even"));
5714 if (prev
&& prev
!= reverse_bytes
)
5715 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5720 case OPTION_FILE_ALIGNMENT
:
5721 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5727 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5729 || (*end
!= '.' && *end
!= '\0'))
5730 non_fatal (_("%s: invalid reserve value for --heap"),
5732 else if (*end
!= '\0')
5734 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5736 non_fatal (_("%s: invalid commit value for --heap"),
5742 case OPTION_IMAGE_BASE
:
5743 pe_image_base
= parse_vma (optarg
, "--image-base");
5746 case OPTION_PE_SECTION_ALIGNMENT
:
5747 pe_section_alignment
= parse_vma (optarg
,
5748 "--section-alignment");
5751 case OPTION_SUBSYSTEM
:
5752 set_pe_subsystem (optarg
);
5758 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5760 || (*end
!= '.' && *end
!= '\0'))
5761 non_fatal (_("%s: invalid reserve value for --stack"),
5763 else if (*end
!= '\0')
5765 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5767 non_fatal (_("%s: invalid commit value for --stack"),
5773 case OPTION_VERILOG_DATA_WIDTH
:
5774 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5775 if (VerilogDataWidth
< 1)
5776 fatal (_("verilog data width must be at least 1 byte"));
5780 /* We've been given a long option. */
5785 copy_usage (stdout
, 0);
5788 copy_usage (stderr
, 1);
5792 if (use_globalize
&& use_keep_global
)
5793 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5802 print_version ("objcopy");
5804 if (interleave
&& copy_byte
== -1)
5805 fatal (_("interleave start byte must be set with --byte"));
5807 if (copy_byte
>= interleave
)
5808 fatal (_("byte number must be less than interleave"));
5810 if (copy_width
> interleave
- copy_byte
)
5811 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5813 if (optind
== argc
|| optind
+ 2 < argc
)
5814 copy_usage (stderr
, 1);
5816 input_filename
= argv
[optind
];
5817 if (optind
+ 1 < argc
)
5818 output_filename
= argv
[optind
+ 1];
5820 default_deterministic ();
5822 /* Default is to strip no symbols. */
5823 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5824 strip_symbols
= STRIP_NONE
;
5826 if (output_target
== NULL
)
5827 output_target
= input_target
;
5829 /* Convert input EFI target to PEI target. */
5830 if (input_target
!= NULL
5831 && strncmp (input_target
, "efi-", 4) == 0)
5835 efi
= xstrdup (output_target
+ 4);
5836 if (strncmp (efi
, "bsdrv-", 6) == 0
5837 || strncmp (efi
, "rtdrv-", 6) == 0)
5839 else if (strncmp (efi
, "app-", 4) != 0)
5840 fatal (_("unknown input EFI target: %s"), input_target
);
5843 convert_efi_target (efi
);
5846 /* Convert output EFI target to PEI target. */
5847 if (output_target
!= NULL
5848 && strncmp (output_target
, "efi-", 4) == 0)
5852 efi
= xstrdup (output_target
+ 4);
5853 if (strncmp (efi
, "app-", 4) == 0)
5855 if (pe_subsystem
== -1)
5856 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5858 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5860 if (pe_subsystem
== -1)
5861 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5864 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5866 if (pe_subsystem
== -1)
5867 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5871 fatal (_("unknown output EFI target: %s"), output_target
);
5873 if (pe_file_alignment
== (bfd_vma
) -1)
5874 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5875 if (pe_section_alignment
== (bfd_vma
) -1)
5876 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5878 output_target
= efi
;
5879 convert_efi_target (efi
);
5883 if (stat (input_filename
, & statbuf
) < 0)
5884 fatal (_("warning: could not locate '%s'. System error message: %s"),
5885 input_filename
, strerror (errno
));
5887 /* If there is no destination file, or the source and destination files
5888 are the same, then create a temp and rename the result into the input. */
5889 if (output_filename
== NULL
5890 || filename_cmp (input_filename
, output_filename
) == 0)
5891 tmpname
= make_tempname (input_filename
);
5893 tmpname
= output_filename
;
5895 if (tmpname
== NULL
)
5896 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5897 input_filename
, strerror (errno
));
5899 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5903 set_times (tmpname
, &statbuf
);
5904 if (tmpname
!= output_filename
)
5905 status
= (smart_rename (tmpname
, input_filename
,
5906 preserve_dates
) != 0);
5909 unlink_if_ordinary (tmpname
);
5911 if (tmpname
!= output_filename
)
5916 struct section_list
*p
;
5918 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5922 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5926 sprintf_vma (buff
, p
->vma_val
);
5928 /* xgettext:c-format */
5929 non_fatal (_("%s %s%c0x%s never used"),
5930 "--change-section-vma",
5932 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5936 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5940 sprintf_vma (buff
, p
->lma_val
);
5942 /* xgettext:c-format */
5943 non_fatal (_("%s %s%c0x%s never used"),
5944 "--change-section-lma",
5946 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5953 if (strip_specific_buffer
)
5954 free (strip_specific_buffer
);
5956 if (strip_unneeded_buffer
)
5957 free (strip_unneeded_buffer
);
5959 if (keep_specific_buffer
)
5960 free (keep_specific_buffer
);
5962 if (localize_specific_buffer
)
5963 free (globalize_specific_buffer
);
5965 if (globalize_specific_buffer
)
5966 free (globalize_specific_buffer
);
5968 if (keepglobal_specific_buffer
)
5969 free (keepglobal_specific_buffer
);
5971 if (weaken_specific_buffer
)
5972 free (weaken_specific_buffer
);
5978 main (int argc
, char *argv
[])
5980 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5981 setlocale (LC_MESSAGES
, "");
5983 #if defined (HAVE_SETLOCALE)
5984 setlocale (LC_CTYPE
, "");
5986 bindtextdomain (PACKAGE
, LOCALEDIR
);
5987 textdomain (PACKAGE
);
5989 program_name
= argv
[0];
5990 xmalloc_set_program_name (program_name
);
5992 START_PROGRESS (program_name
, 0);
5994 expandargv (&argc
, &argv
);
5996 strip_symbols
= STRIP_UNDEF
;
5997 discard_locals
= LOCALS_UNDEF
;
5999 if (bfd_init () != BFD_INIT_MAGIC
)
6000 fatal (_("fatal error: libbfd ABI mismatch"));
6001 set_default_bfd_target ();
6005 int i
= strlen (program_name
);
6006 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6007 /* Drop the .exe suffix, if any. */
6008 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6011 program_name
[i
] = '\0';
6014 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6017 create_symbol_htabs ();
6020 bfd_set_error_program_name (argv
[0]);
6023 strip_main (argc
, argv
);
6025 copy_main (argc
, argv
);
6027 END_PROGRESS (program_name
);