1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2020 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "libiberty.h"
28 #include "filenames.h"
31 #include "coff/internal.h"
33 #include "safe-ctype.h"
35 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
36 header in generic PE code. */
37 #include "coff/i386.h"
40 static bfd_vma pe_file_alignment
= (bfd_vma
) -1;
41 static bfd_vma pe_heap_commit
= (bfd_vma
) -1;
42 static bfd_vma pe_heap_reserve
= (bfd_vma
) -1;
43 static bfd_vma pe_image_base
= (bfd_vma
) -1;
44 static bfd_vma pe_section_alignment
= (bfd_vma
) -1;
45 static bfd_vma pe_stack_commit
= (bfd_vma
) -1;
46 static bfd_vma pe_stack_reserve
= (bfd_vma
) -1;
47 static short pe_subsystem
= -1;
48 static short pe_major_subsystem_version
= -1;
49 static short pe_minor_subsystem_version
= -1;
51 struct is_specified_symbol_predicate_data
57 /* A node includes symbol name mapping to support redefine_sym. */
66 struct addsym_node
*next
;
71 const char * othersym
;
74 typedef struct section_rename
76 const char * old_name
;
77 const char * new_name
;
79 struct section_rename
* next
;
83 /* List of sections to be renamed. */
84 static section_rename
*section_rename_list
;
86 static asymbol
**isympp
= NULL
; /* Input symbols. */
87 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
89 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
90 static int copy_byte
= -1;
91 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
92 static int copy_width
= 1;
94 static bfd_boolean verbose
; /* Print file and target names. */
95 static bfd_boolean preserve_dates
; /* Preserve input file timestamp. */
96 static int deterministic
= -1; /* Enable deterministic archives. */
97 static int status
= 0; /* Exit status. */
99 static bfd_boolean merge_notes
= FALSE
; /* Merge note sections. */
101 typedef struct merged_note_section
103 asection
* sec
; /* The section that is being merged. */
104 bfd_byte
* contents
;/* New contents of the section. */
105 bfd_size_type size
; /* New size of the section. */
106 struct merged_note_section
* next
; /* Link to next merged note section. */
107 } merged_note_section
;
112 STRIP_NONE
, /* Don't strip. */
113 STRIP_DEBUG
, /* Strip all debugger symbols. */
114 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
115 STRIP_NONDEBUG
, /* Strip everything but debug info. */
116 STRIP_DWO
, /* Strip all DWO info. */
117 STRIP_NONDWO
, /* Strip everything but DWO info. */
118 STRIP_ALL
/* Strip all symbols. */
121 /* Which symbols to remove. */
122 static enum strip_action strip_symbols
= STRIP_UNDEF
;
127 LOCALS_START_L
, /* Discard locals starting with L. */
128 LOCALS_ALL
/* Discard all locals. */
131 /* Which local symbols to remove. Overrides STRIP_ALL. */
132 static enum locals_action discard_locals
;
134 /* Structure used to hold lists of sections and actions to take. */
137 struct section_list
* next
; /* Next section to change. */
138 const char * pattern
; /* Section name pattern. */
139 bfd_boolean used
; /* Whether this entry was used. */
141 unsigned int context
; /* What to do with matching sections. */
142 /* Flag bits used in the context field.
143 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
144 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
145 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
146 #define SECTION_CONTEXT_KEEP (1 << 2) /* Keep this section. */
147 #define SECTION_CONTEXT_SET_VMA (1 << 3) /* Set the sections' VMA address. */
148 #define SECTION_CONTEXT_ALTER_VMA (1 << 4) /* Increment or decrement the section's VMA address. */
149 #define SECTION_CONTEXT_SET_LMA (1 << 5) /* Set the sections' LMA address. */
150 #define SECTION_CONTEXT_ALTER_LMA (1 << 6) /* Increment or decrement the section's LMA address. */
151 #define SECTION_CONTEXT_SET_FLAGS (1 << 7) /* Set the section's flags. */
152 #define SECTION_CONTEXT_REMOVE_RELOCS (1 << 8) /* Remove relocations for this section. */
153 #define SECTION_CONTEXT_SET_ALIGNMENT (1 << 9) /* Set alignment for section. */
155 bfd_vma vma_val
; /* Amount to change by or set to. */
156 bfd_vma lma_val
; /* Amount to change by or set to. */
157 flagword flags
; /* What to set the section flags to. */
158 unsigned int alignment
; /* Alignment of output section. */
161 static struct section_list
*change_sections
;
163 /* TRUE if some sections are to be removed. */
164 static bfd_boolean sections_removed
;
166 /* TRUE if only some sections are to be copied. */
167 static bfd_boolean sections_copied
;
169 /* Changes to the start address. */
170 static bfd_vma change_start
= 0;
171 static bfd_boolean set_start_set
= FALSE
;
172 static bfd_vma set_start
;
174 /* Changes to section addresses. */
175 static bfd_vma change_section_address
= 0;
177 /* Filling gaps between sections. */
178 static bfd_boolean gap_fill_set
= FALSE
;
179 static bfd_byte gap_fill
= 0;
181 /* Pad to a given address. */
182 static bfd_boolean pad_to_set
= FALSE
;
183 static bfd_vma pad_to
;
185 /* Use alternative machine code? */
186 static unsigned long use_alt_mach_code
= 0;
188 /* Output BFD flags user wants to set or clear */
189 static flagword bfd_flags_to_set
;
190 static flagword bfd_flags_to_clear
;
192 /* List of sections to add. */
195 /* Next section to add. */
196 struct section_add
*next
;
197 /* Name of section to add. */
199 /* Name of file holding section contents. */
200 const char *filename
;
203 /* Contents of file. */
205 /* BFD section, after it has been added. */
209 /* List of sections to add to the output BFD. */
210 static struct section_add
*add_sections
;
212 /* List of sections to update in the output BFD. */
213 static struct section_add
*update_sections
;
215 /* List of sections to dump from the output BFD. */
216 static struct section_add
*dump_sections
;
218 /* If non-NULL the argument to --add-gnu-debuglink.
219 This should be the filename to store in the .gnu_debuglink section. */
220 static const char * gnu_debuglink_filename
= NULL
;
222 /* Whether to convert debugging information. */
223 static bfd_boolean convert_debugging
= FALSE
;
225 /* Whether to compress/decompress DWARF debug sections. */
230 compress_zlib
= compress
| 1 << 1,
231 compress_gnu_zlib
= compress
| 1 << 2,
232 compress_gabi_zlib
= compress
| 1 << 3,
234 } do_debug_sections
= nothing
;
236 /* Whether to generate ELF common symbols with the STT_COMMON type. */
237 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
239 /* Whether to change the leading character in symbol names. */
240 static bfd_boolean change_leading_char
= FALSE
;
242 /* Whether to remove the leading character from global symbol names. */
243 static bfd_boolean remove_leading_char
= FALSE
;
245 /* Whether to permit wildcard in symbol comparison. */
246 static bfd_boolean wildcard
= FALSE
;
248 /* True if --localize-hidden is in effect. */
249 static bfd_boolean localize_hidden
= FALSE
;
251 /* List of symbols to strip, keep, localize, keep-global, weaken,
253 static htab_t strip_specific_htab
= NULL
;
254 static htab_t strip_unneeded_htab
= NULL
;
255 static htab_t keep_specific_htab
= NULL
;
256 static htab_t localize_specific_htab
= NULL
;
257 static htab_t globalize_specific_htab
= NULL
;
258 static htab_t keepglobal_specific_htab
= NULL
;
259 static htab_t weaken_specific_htab
= NULL
;
260 static htab_t redefine_specific_htab
= NULL
;
261 static htab_t redefine_specific_reverse_htab
= NULL
;
262 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
263 static int add_symbols
= 0;
265 static char *strip_specific_buffer
= NULL
;
266 static char *strip_unneeded_buffer
= NULL
;
267 static char *keep_specific_buffer
= NULL
;
268 static char *localize_specific_buffer
= NULL
;
269 static char *globalize_specific_buffer
= NULL
;
270 static char *keepglobal_specific_buffer
= NULL
;
271 static char *weaken_specific_buffer
= NULL
;
273 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
274 static bfd_boolean weaken
= FALSE
;
276 /* If this is TRUE, we retain BSF_FILE symbols. */
277 static bfd_boolean keep_file_symbols
= FALSE
;
279 /* Prefix symbols/sections. */
280 static char *prefix_symbols_string
= 0;
281 static char *prefix_sections_string
= 0;
282 static char *prefix_alloc_sections_string
= 0;
284 /* True if --extract-symbol was passed on the command line. */
285 static bfd_boolean extract_symbol
= FALSE
;
287 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
288 of <reverse_bytes> bytes within each output section. */
289 static int reverse_bytes
= 0;
291 /* For Coff objects, we may want to allow or disallow long section names,
292 or preserve them where found in the inputs. Debug info relies on them. */
293 enum long_section_name_handling
300 /* The default long section handling mode is to preserve them.
301 This is also the only behaviour for 'strip'. */
302 static enum long_section_name_handling long_section_names
= KEEP
;
304 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
305 enum command_line_switch
307 OPTION_ADD_SECTION
=150,
308 OPTION_ADD_GNU_DEBUGLINK
,
310 OPTION_ALT_MACH_CODE
,
311 OPTION_CHANGE_ADDRESSES
,
312 OPTION_CHANGE_LEADING_CHAR
,
313 OPTION_CHANGE_SECTION_ADDRESS
,
314 OPTION_CHANGE_SECTION_LMA
,
315 OPTION_CHANGE_SECTION_VMA
,
317 OPTION_CHANGE_WARNINGS
,
318 OPTION_COMPRESS_DEBUG_SECTIONS
,
320 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
322 OPTION_ELF_STT_COMMON
,
324 OPTION_EXTRACT_SYMBOL
,
325 OPTION_FILE_ALIGNMENT
,
328 OPTION_GLOBALIZE_SYMBOL
,
329 OPTION_GLOBALIZE_SYMBOLS
,
333 OPTION_INTERLEAVE_WIDTH
,
334 OPTION_KEEPGLOBAL_SYMBOLS
,
335 OPTION_KEEP_FILE_SYMBOLS
,
338 OPTION_LOCALIZE_HIDDEN
,
339 OPTION_LOCALIZE_SYMBOLS
,
340 OPTION_LONG_SECTION_NAMES
,
342 OPTION_NO_MERGE_NOTES
,
343 OPTION_NO_CHANGE_WARNINGS
,
344 OPTION_ONLY_KEEP_DEBUG
,
346 OPTION_PREFIX_ALLOC_SECTIONS
,
347 OPTION_PREFIX_SECTIONS
,
348 OPTION_PREFIX_SYMBOLS
,
350 OPTION_READONLY_TEXT
,
352 OPTION_REDEFINE_SYMS
,
353 OPTION_REMOVE_LEADING_CHAR
,
354 OPTION_REMOVE_RELOCS
,
355 OPTION_RENAME_SECTION
,
356 OPTION_REVERSE_BYTES
,
357 OPTION_PE_SECTION_ALIGNMENT
,
358 OPTION_SET_SECTION_FLAGS
,
359 OPTION_SET_SECTION_ALIGNMENT
,
365 OPTION_STRIP_SYMBOLS
,
366 OPTION_STRIP_UNNEEDED
,
367 OPTION_STRIP_UNNEEDED_SYMBOL
,
368 OPTION_STRIP_UNNEEDED_SYMBOLS
,
370 OPTION_UPDATE_SECTION
,
371 OPTION_VERILOG_DATA_WIDTH
,
373 OPTION_WEAKEN_SYMBOLS
,
377 /* Options to handle if running as "strip". */
379 static struct option strip_options
[] =
381 {"disable-deterministic-archives", no_argument
, 0, 'U'},
382 {"discard-all", no_argument
, 0, 'x'},
383 {"discard-locals", no_argument
, 0, 'X'},
384 {"enable-deterministic-archives", no_argument
, 0, 'D'},
385 {"format", required_argument
, 0, 'F'}, /* Obsolete */
386 {"help", no_argument
, 0, 'h'},
387 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
388 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
389 {"input-target", required_argument
, 0, 'I'},
390 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
391 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
392 {"keep-symbol", required_argument
, 0, 'K'},
393 {"merge-notes", no_argument
, 0, 'M'},
394 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
395 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
396 {"output-file", required_argument
, 0, 'o'},
397 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
398 {"output-target", required_argument
, 0, 'O'},
399 {"preserve-dates", no_argument
, 0, 'p'},
400 {"remove-section", required_argument
, 0, 'R'},
401 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
402 {"strip-all", no_argument
, 0, 's'},
403 {"strip-debug", no_argument
, 0, 'S'},
404 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
405 {"strip-symbol", required_argument
, 0, 'N'},
406 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
407 {"target", required_argument
, 0, 'F'},
408 {"verbose", no_argument
, 0, 'v'},
409 {"version", no_argument
, 0, 'V'},
410 {"wildcard", no_argument
, 0, 'w'},
411 {0, no_argument
, 0, 0}
414 /* Options to handle if running as "objcopy". */
416 static struct option copy_options
[] =
418 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
419 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
420 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
421 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
422 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
423 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
424 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
425 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
426 {"binary-architecture", required_argument
, 0, 'B'},
427 {"byte", required_argument
, 0, 'b'},
428 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
429 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
430 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
431 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
432 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
433 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
434 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
435 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
436 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
437 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
438 {"disable-deterministic-archives", no_argument
, 0, 'U'},
439 {"discard-all", no_argument
, 0, 'x'},
440 {"discard-locals", no_argument
, 0, 'X'},
441 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
442 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
443 {"enable-deterministic-archives", no_argument
, 0, 'D'},
444 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
445 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
446 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
447 {"format", required_argument
, 0, 'F'}, /* Obsolete */
448 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
449 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
450 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
451 {"heap", required_argument
, 0, OPTION_HEAP
},
452 {"help", no_argument
, 0, 'h'},
453 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
454 {"impure", no_argument
, 0, OPTION_IMPURE
},
455 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
456 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
457 {"input-target", required_argument
, 0, 'I'},
458 {"interleave", optional_argument
, 0, 'i'},
459 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
460 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
461 {"keep-global-symbol", required_argument
, 0, 'G'},
462 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
463 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
464 {"keep-symbol", required_argument
, 0, 'K'},
465 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
466 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
467 {"localize-symbol", required_argument
, 0, 'L'},
468 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
469 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
470 {"merge-notes", no_argument
, 0, 'M'},
471 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
472 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
473 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
474 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
475 {"only-section", required_argument
, 0, 'j'},
476 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
477 {"output-target", required_argument
, 0, 'O'},
478 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
479 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
480 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
481 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
482 {"preserve-dates", no_argument
, 0, 'p'},
483 {"pure", no_argument
, 0, OPTION_PURE
},
484 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
485 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
486 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
487 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
488 {"remove-section", required_argument
, 0, 'R'},
489 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
490 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
491 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
492 {"section-alignment", required_argument
, 0, OPTION_PE_SECTION_ALIGNMENT
},
493 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
494 {"set-section-alignment", required_argument
, 0, OPTION_SET_SECTION_ALIGNMENT
},
495 {"set-start", required_argument
, 0, OPTION_SET_START
},
496 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
497 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
498 {"stack", required_argument
, 0, OPTION_STACK
},
499 {"strip-all", no_argument
, 0, 'S'},
500 {"strip-debug", no_argument
, 0, 'g'},
501 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
502 {"strip-symbol", required_argument
, 0, 'N'},
503 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
504 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
505 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
506 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
507 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
508 {"target", required_argument
, 0, 'F'},
509 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
510 {"verbose", no_argument
, 0, 'v'},
511 {"verilog-data-width", required_argument
, 0, OPTION_VERILOG_DATA_WIDTH
},
512 {"version", no_argument
, 0, 'V'},
513 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
514 {"weaken-symbol", required_argument
, 0, 'W'},
515 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
516 {"wildcard", no_argument
, 0, 'w'},
517 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
518 {0, no_argument
, 0, 0}
522 extern char *program_name
;
524 /* This flag distinguishes between strip and objcopy:
525 1 means this is 'strip'; 0 means this is 'objcopy'.
526 -1 means if we should use argv[0] to decide. */
529 /* The maximum length of an S record. This variable is defined in srec.c
530 and can be modified by the --srec-len parameter. */
531 extern unsigned int _bfd_srec_len
;
533 /* Restrict the generation of Srecords to type S3 only.
534 This variable is defined in bfd/srec.c and can be toggled
535 on by the --srec-forceS3 command line switch. */
536 extern bfd_boolean _bfd_srec_forceS3
;
538 /* Width of data in bytes for verilog output.
539 This variable is declared in bfd/verilog.c and can be modified by
540 the --verilog-data-width parameter. */
541 extern unsigned int VerilogDataWidth
;
543 /* Forward declarations. */
544 static void setup_section (bfd
*, asection
*, void *);
545 static void setup_bfd_headers (bfd
*, bfd
*);
546 static void copy_relocations_in_section (bfd
*, asection
*, void *);
547 static void copy_section (bfd
*, asection
*, void *);
548 static void get_sections (bfd
*, asection
*, void *);
549 static int compare_section_lma (const void *, const void *);
550 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
551 static bfd_boolean
write_debugging_info (bfd
*, void *, long *, asymbol
***);
552 static const char *lookup_sym_redefinition (const char *);
553 static const char *find_section_rename (const char *, flagword
*);
555 ATTRIBUTE_NORETURN
static void
556 copy_usage (FILE *stream
, int exit_status
)
558 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
559 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
560 fprintf (stream
, _(" The options are:\n"));
561 fprintf (stream
, _("\
562 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
563 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
564 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
565 -F --target <bfdname> Set both input and output format to <bfdname>\n\
566 --debugging Convert debugging information, if possible\n\
567 -p --preserve-dates Copy modified/access timestamps to the output\n"));
568 if (DEFAULT_AR_DETERMINISTIC
)
569 fprintf (stream
, _("\
570 -D --enable-deterministic-archives\n\
571 Produce deterministic output when stripping archives (default)\n\
572 -U --disable-deterministic-archives\n\
573 Disable -D behavior\n"));
575 fprintf (stream
, _("\
576 -D --enable-deterministic-archives\n\
577 Produce deterministic output when stripping archives\n\
578 -U --disable-deterministic-archives\n\
579 Disable -D behavior (default)\n"));
580 fprintf (stream
, _("\
581 -j --only-section <name> Only copy section <name> into the output\n\
582 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
583 -R --remove-section <name> Remove section <name> from the output\n\
584 --remove-relocations <name> Remove relocations from section <name>\n\
585 -S --strip-all Remove all symbol and relocation information\n\
586 -g --strip-debug Remove all debugging symbols & sections\n\
587 --strip-dwo Remove all DWO sections\n\
588 --strip-unneeded Remove all symbols not needed by relocations\n\
589 -N --strip-symbol <name> Do not copy symbol <name>\n\
590 --strip-unneeded-symbol <name>\n\
591 Do not copy symbol <name> unless needed by\n\
593 --only-keep-debug Strip everything but the debug information\n\
594 --extract-dwo Copy only DWO sections\n\
595 --extract-symbol Remove section contents but keep symbols\n\
596 --keep-section <name> Do not strip section <name>\n\
597 -K --keep-symbol <name> Do not strip symbol <name>\n\
598 --keep-file-symbols Do not strip file symbol(s)\n\
599 --localize-hidden Turn all ELF hidden symbols into locals\n\
600 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
601 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
602 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
603 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
604 --weaken Force all global symbols to be marked as weak\n\
605 -w --wildcard Permit wildcard in symbol comparison\n\
606 -x --discard-all Remove all non-global symbols\n\
607 -X --discard-locals Remove any compiler-generated symbols\n\
608 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
609 --interleave-width <number> Set N for --interleave\n\
610 -b --byte <num> Select byte <num> in every interleaved block\n\
611 --gap-fill <val> Fill gaps between sections with <val>\n\
612 --pad-to <addr> Pad the last section up to address <addr>\n\
613 --set-start <addr> Set the start address to <addr>\n\
614 {--change-start|--adjust-start} <incr>\n\
615 Add <incr> to the start address\n\
616 {--change-addresses|--adjust-vma} <incr>\n\
617 Add <incr> to LMA, VMA and start addresses\n\
618 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
619 Change LMA and VMA of section <name> by <val>\n\
620 --change-section-lma <name>{=|+|-}<val>\n\
621 Change the LMA of section <name> by <val>\n\
622 --change-section-vma <name>{=|+|-}<val>\n\
623 Change the VMA of section <name> by <val>\n\
624 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
625 Warn if a named section does not exist\n\
626 --set-section-flags <name>=<flags>\n\
627 Set section <name>'s properties to <flags>\n\
628 --set-section-alignment <name>=<align>\n\
629 Set section <name>'s alignment to <align> bytes\n\
630 --add-section <name>=<file> Add section <name> found in <file> to output\n\
631 --update-section <name>=<file>\n\
632 Update contents of section <name> with\n\
633 contents found in <file>\n\
634 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
635 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
636 --long-section-names {enable|disable|keep}\n\
637 Handle long section names in Coff objects.\n\
638 --change-leading-char Force output format's leading character style\n\
639 --remove-leading-char Remove leading character from global symbols\n\
640 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
641 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
642 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
644 --srec-len <number> Restrict the length of generated Srecords\n\
645 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
646 --strip-symbols <file> -N for all symbols listed in <file>\n\
647 --strip-unneeded-symbols <file>\n\
648 --strip-unneeded-symbol for all symbols listed\n\
650 --keep-symbols <file> -K for all symbols listed in <file>\n\
651 --localize-symbols <file> -L for all symbols listed in <file>\n\
652 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
653 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
654 --weaken-symbols <file> -W for all symbols listed in <file>\n\
655 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
656 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
657 --writable-text Mark the output text as writable\n\
658 --readonly-text Make the output text write protected\n\
659 --pure Mark the output file as demand paged\n\
660 --impure Mark the output file as impure\n\
661 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
662 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
663 --prefix-alloc-sections <prefix>\n\
664 Add <prefix> to start of every allocatable\n\
666 --file-alignment <num> Set PE file alignment to <num>\n\
667 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
669 --image-base <address> Set PE image base to <address>\n\
670 --section-alignment <num> Set PE section alignment to <num>\n\
671 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
673 --subsystem <name>[:<version>]\n\
674 Set PE subsystem to <name> [& <version>]\n\
675 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
676 Compress DWARF debug sections using zlib\n\
677 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
678 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
680 --verilog-data-width <number> Specifies data width, in bytes, for verilog output\n\
681 -M --merge-notes Remove redundant entries in note sections\n\
682 --no-merge-notes Do not attempt to remove redundant notes (default)\n\
683 -v --verbose List all object files modified\n\
684 @<file> Read options from <file>\n\
685 -V --version Display this program's version number\n\
686 -h --help Display this output\n\
687 --info List object formats & architectures supported\n\
689 list_supported_targets (program_name
, stream
);
690 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
691 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
695 ATTRIBUTE_NORETURN
static void
696 strip_usage (FILE *stream
, int exit_status
)
698 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
699 fprintf (stream
, _(" Removes symbols and sections from files\n"));
700 fprintf (stream
, _(" The options are:\n"));
701 fprintf (stream
, _("\
702 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
703 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
704 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
705 -p --preserve-dates Copy modified/access timestamps to the output\n\
707 if (DEFAULT_AR_DETERMINISTIC
)
708 fprintf (stream
, _("\
709 -D --enable-deterministic-archives\n\
710 Produce deterministic output when stripping archives (default)\n\
711 -U --disable-deterministic-archives\n\
712 Disable -D behavior\n"));
714 fprintf (stream
, _("\
715 -D --enable-deterministic-archives\n\
716 Produce deterministic output when stripping archives\n\
717 -U --disable-deterministic-archives\n\
718 Disable -D behavior (default)\n"));
719 fprintf (stream
, _("\
720 -R --remove-section=<name> Also remove section <name> from the output\n\
721 --remove-relocations <name> Remove relocations from section <name>\n\
722 -s --strip-all Remove all symbol and relocation information\n\
723 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
724 --strip-dwo Remove all DWO sections\n\
725 --strip-unneeded Remove all symbols not needed by relocations\n\
726 --only-keep-debug Strip everything but the debug information\n\
727 -M --merge-notes Remove redundant entries in note sections (default)\n\
728 --no-merge-notes Do not attempt to remove redundant notes\n\
729 -N --strip-symbol=<name> Do not copy symbol <name>\n\
730 --keep-section=<name> Do not strip section <name>\n\
731 -K --keep-symbol=<name> Do not strip symbol <name>\n\
732 --keep-file-symbols Do not strip file symbol(s)\n\
733 -w --wildcard Permit wildcard in symbol comparison\n\
734 -x --discard-all Remove all non-global symbols\n\
735 -X --discard-locals Remove any compiler-generated symbols\n\
736 -v --verbose List all object files modified\n\
737 -V --version Display this program's version number\n\
738 -h --help Display this output\n\
739 --info List object formats & architectures supported\n\
740 -o <file> Place stripped output into <file>\n\
743 list_supported_targets (program_name
, stream
);
744 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
745 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
749 /* Parse section flags into a flagword, with a fatal error if the
750 string can't be parsed. */
753 parse_flags (const char *s
)
763 snext
= strchr (s
, ',');
773 #define PARSE_FLAG(fname,fval) \
774 else if (strncasecmp (fname, s, len) == 0) ret |= fval
775 PARSE_FLAG ("alloc", SEC_ALLOC
);
776 PARSE_FLAG ("load", SEC_LOAD
);
777 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
778 PARSE_FLAG ("readonly", SEC_READONLY
);
779 PARSE_FLAG ("debug", SEC_DEBUGGING
);
780 PARSE_FLAG ("code", SEC_CODE
);
781 PARSE_FLAG ("data", SEC_DATA
);
782 PARSE_FLAG ("rom", SEC_ROM
);
783 PARSE_FLAG ("exclude", SEC_EXCLUDE
);
784 PARSE_FLAG ("share", SEC_COFF_SHARED
);
785 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
786 PARSE_FLAG ("merge", SEC_MERGE
);
787 PARSE_FLAG ("strings", SEC_STRINGS
);
793 copy
= (char *) xmalloc (len
+ 1);
794 strncpy (copy
, s
, len
);
796 non_fatal (_("unrecognized section flag `%s'"), copy
);
797 fatal (_("supported flags: %s"),
798 "alloc, load, noload, readonly, debug, code, data, rom, exclude, share, contents, merge, strings");
808 /* Parse symbol flags into a flagword, with a fatal error if the
809 string can't be parsed. */
812 parse_symflags (const char *s
, const char **other
)
822 snext
= strchr (s
, ',');
831 #define PARSE_FLAG(fname, fval) \
832 else if (len == sizeof fname - 1 \
833 && strncasecmp (fname, s, len) == 0) \
836 #define PARSE_OTHER(fname, fval) \
837 else if (len >= sizeof fname \
838 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
839 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
842 PARSE_FLAG ("local", BSF_LOCAL
);
843 PARSE_FLAG ("global", BSF_GLOBAL
);
844 PARSE_FLAG ("export", BSF_EXPORT
);
845 PARSE_FLAG ("debug", BSF_DEBUGGING
);
846 PARSE_FLAG ("function", BSF_FUNCTION
);
847 PARSE_FLAG ("weak", BSF_WEAK
);
848 PARSE_FLAG ("section", BSF_SECTION_SYM
);
849 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
850 PARSE_FLAG ("warning", BSF_WARNING
);
851 PARSE_FLAG ("indirect", BSF_INDIRECT
);
852 PARSE_FLAG ("file", BSF_FILE
);
853 PARSE_FLAG ("object", BSF_OBJECT
);
854 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
855 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
856 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
857 PARSE_OTHER ("before=", *other
);
865 copy
= (char *) xmalloc (len
+ 1);
866 strncpy (copy
, s
, len
);
868 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
869 fatal (_("supported flags: %s"),
870 "local, global, export, debug, function, weak, section, "
871 "constructor, warning, indirect, file, object, synthetic, "
872 "indirect-function, unique-object, before=<othersym>");
882 /* Find and optionally add an entry in the change_sections list.
884 We need to be careful in how we match section names because of the support
885 for wildcard characters. For example suppose that the user has invoked
888 --set-section-flags .debug_*=debug
889 --set-section-flags .debug_str=readonly,debug
890 --change-section-address .debug_*ranges=0x1000
892 With the idea that all debug sections will receive the DEBUG flag, the
893 .debug_str section will also receive the READONLY flag and the
894 .debug_ranges and .debug_aranges sections will have their address set to
895 0x1000. (This may not make much sense, but it is just an example).
897 When adding the section name patterns to the section list we need to make
898 sure that previous entries do not match with the new entry, unless the
899 match is exact. (In which case we assume that the user is overriding
900 the previous entry with the new context).
902 When matching real section names to the section list we make use of the
903 wildcard characters, but we must do so in context. Eg if we are setting
904 section addresses then we match for .debug_ranges but not for .debug_info.
906 Finally, if ADD is false and we do find a match, we mark the section list
909 static struct section_list
*
910 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
912 struct section_list
*p
, *match
= NULL
;
914 /* assert ((context & ((1 << 7) - 1)) != 0); */
916 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
920 if (strcmp (p
->pattern
, name
) == 0)
922 /* Check for context conflicts. */
923 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
924 && (context
& SECTION_CONTEXT_COPY
))
925 || ((context
& SECTION_CONTEXT_REMOVE
)
926 && (p
->context
& SECTION_CONTEXT_COPY
)))
927 fatal (_("error: %s both copied and removed"), name
);
929 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
930 && (context
& SECTION_CONTEXT_ALTER_VMA
))
931 || ((context
& SECTION_CONTEXT_SET_VMA
)
932 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
933 fatal (_("error: %s both sets and alters VMA"), name
);
935 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
936 && (context
& SECTION_CONTEXT_ALTER_LMA
))
937 || ((context
& SECTION_CONTEXT_SET_LMA
)
938 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
939 fatal (_("error: %s both sets and alters LMA"), name
);
941 /* Extend the context. */
942 p
->context
|= context
;
946 /* If we are not adding a new name/pattern then
947 only check for a match if the context applies. */
948 else if (p
->context
& context
)
950 /* We could check for the presence of wildchar characters
951 first and choose between calling strcmp and fnmatch,
952 but is that really worth it ? */
953 if (p
->pattern
[0] == '!')
955 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
963 if (fnmatch (p
->pattern
, name
, 0) == 0)
979 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
982 p
->context
= context
;
987 p
->next
= change_sections
;
993 /* S1 is the entry node already in the table, S2 is the key node. */
996 eq_string_redefnode (const void *s1
, const void *s2
)
998 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
999 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
1000 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
1003 /* P is redefine node. Hash value is generated from its "source" filed. */
1006 htab_hash_redefnode (const void *p
)
1008 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
1009 return htab_hash_string (redefnode
->source
);
1012 /* Create hashtab used for redefine node. */
1015 create_symbol2redef_htab (void)
1017 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
1021 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
1024 eq_string (const void *s1
, const void *s2
)
1026 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
1030 create_symbol_htab (void)
1032 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
1036 create_symbol_htabs (void)
1038 strip_specific_htab
= create_symbol_htab ();
1039 strip_unneeded_htab
= create_symbol_htab ();
1040 keep_specific_htab
= create_symbol_htab ();
1041 localize_specific_htab
= create_symbol_htab ();
1042 globalize_specific_htab
= create_symbol_htab ();
1043 keepglobal_specific_htab
= create_symbol_htab ();
1044 weaken_specific_htab
= create_symbol_htab ();
1045 redefine_specific_htab
= create_symbol2redef_htab ();
1046 /* As there is no bidirectional hash table in libiberty, need a reverse table
1047 to check duplicated target string. */
1048 redefine_specific_reverse_htab
= create_symbol_htab ();
1051 /* Add a symbol to strip_specific_list. */
1054 add_specific_symbol (const char *name
, htab_t htab
)
1056 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1059 /* Like add_specific_symbol, but the element type is void *. */
1062 add_specific_symbol_node (const void *node
, htab_t htab
)
1064 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1067 /* Add symbols listed in `filename' to strip_specific_list. */
1069 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1070 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1073 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1079 unsigned int line_count
;
1081 size
= get_file_size (filename
);
1088 buffer
= (char *) xmalloc (size
+ 2);
1089 f
= fopen (filename
, FOPEN_RT
);
1091 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1093 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1094 fatal (_("%s: fread failed"), filename
);
1097 buffer
[size
] = '\n';
1098 buffer
[size
+ 1] = '\0';
1102 for (line
= buffer
; * line
!= '\0'; line
++)
1107 int finished
= FALSE
;
1109 for (eol
= line
;; eol
++)
1115 /* Cope with \n\r. */
1123 /* Cope with \r\n. */
1134 /* Line comment, Terminate the line here, in case a
1135 name is present and then allow the rest of the
1136 loop to find the real end of the line. */
1148 /* A name may now exist somewhere between 'line' and 'eol'.
1149 Strip off leading whitespace and trailing whitespace,
1150 then add it to the list. */
1151 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1153 for (name_end
= name
;
1154 (! IS_WHITESPACE (* name_end
))
1155 && (! IS_LINE_TERMINATOR (* name_end
));
1159 if (! IS_LINE_TERMINATOR (* name_end
))
1163 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1166 if (! IS_LINE_TERMINATOR (* extra
))
1167 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1168 filename
, line_count
);
1173 if (name_end
> name
)
1174 add_specific_symbol (name
, htab
);
1176 /* Advance line pointer to end of line. The 'eol ++' in the for
1177 loop above will then advance us to the start of the next line. */
1182 /* Do not free the buffer. Parts of it will have been referenced
1183 in the calls to add_specific_symbol. */
1187 /* See whether a symbol should be stripped or kept
1188 based on strip_specific_list and keep_symbols. */
1191 is_specified_symbol_predicate (void **slot
, void *data
)
1193 struct is_specified_symbol_predicate_data
*d
=
1194 (struct is_specified_symbol_predicate_data
*) data
;
1195 const char *slot_name
= (char *) *slot
;
1197 if (*slot_name
!= '!')
1199 if (! fnmatch (slot_name
, d
->name
, 0))
1202 /* Continue traversal, there might be a non-match rule. */
1208 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1211 /* Stop traversal. */
1216 /* Continue traversal. */
1221 is_specified_symbol (const char *name
, htab_t htab
)
1225 struct is_specified_symbol_predicate_data data
;
1230 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1235 return htab_find (htab
, name
) != NULL
;
1238 /* Return a pointer to the symbol used as a signature for GROUP. */
1241 group_signature (asection
*group
)
1243 bfd
*abfd
= group
->owner
;
1244 Elf_Internal_Shdr
*ghdr
;
1246 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1250 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1253 ghdr
= &elf_section_data (group
)->this_hdr
;
1254 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1256 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1257 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1259 if (ghdr
->sh_info
> 0
1260 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1261 return isympp
[ghdr
->sh_info
- 1];
1266 /* Return TRUE if the section is a DWO section. */
1269 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1271 const char *name
= bfd_section_name (sec
);
1272 int len
= strlen (name
);
1274 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1277 /* Return TRUE if section SEC is in the update list. */
1280 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1282 if (update_sections
!= NULL
)
1284 struct section_add
*pupdate
;
1286 for (pupdate
= update_sections
;
1288 pupdate
= pupdate
->next
)
1290 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1299 is_mergeable_note_section (bfd
* abfd
, asection
* sec
)
1302 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1303 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1304 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1305 We should add support for more note types. */
1306 && ((elf_section_data (sec
)->this_hdr
.sh_flags
& SHF_GNU_BUILD_NOTE
) != 0
1307 /* Old versions of GAS (prior to 2.27) could not set the section
1308 flags to OS-specific values, so we also accept sections that
1309 start with the expected name. */
1310 || (CONST_STRNEQ (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
))))
1316 /* See if a non-group section is being removed. */
1319 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1321 if (find_section_list (bfd_section_name (sec
), FALSE
, SECTION_CONTEXT_KEEP
)
1325 if (sections_removed
|| sections_copied
)
1327 struct section_list
*p
;
1328 struct section_list
*q
;
1330 p
= find_section_list (bfd_section_name (sec
), FALSE
,
1331 SECTION_CONTEXT_REMOVE
);
1332 q
= find_section_list (bfd_section_name (sec
), FALSE
,
1333 SECTION_CONTEXT_COPY
);
1336 fatal (_("error: section %s matches both remove and copy options"),
1337 bfd_section_name (sec
));
1338 if (p
&& is_update_section (abfd
, sec
))
1339 fatal (_("error: section %s matches both update and remove options"),
1340 bfd_section_name (sec
));
1344 if (sections_copied
&& q
== NULL
)
1348 if ((bfd_section_flags (sec
) & SEC_DEBUGGING
) != 0)
1350 if (strip_symbols
== STRIP_DEBUG
1351 || strip_symbols
== STRIP_UNNEEDED
1352 || strip_symbols
== STRIP_ALL
1353 || discard_locals
== LOCALS_ALL
1354 || convert_debugging
)
1356 /* By default we don't want to strip .reloc section.
1357 This section has for pe-coff special meaning. See
1358 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1359 if (strcmp (bfd_section_name (sec
), ".reloc") != 0)
1363 if (strip_symbols
== STRIP_DWO
)
1364 return is_dwo_section (abfd
, sec
);
1366 if (strip_symbols
== STRIP_NONDEBUG
)
1370 if (strip_symbols
== STRIP_NONDWO
)
1371 return !is_dwo_section (abfd
, sec
);
1376 /* See if a section is being removed. */
1379 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1381 if (is_strip_section_1 (abfd
, sec
))
1384 if ((bfd_section_flags (sec
) & SEC_GROUP
) != 0)
1388 asection
*elt
, *first
;
1390 gsym
= group_signature (sec
);
1391 /* Strip groups without a valid signature. */
1396 If we are going to strip the group signature symbol, then
1397 strip the group section too. */
1399 if ((strip_symbols
== STRIP_ALL
1400 && !is_specified_symbol (gname
, keep_specific_htab
))
1401 || is_specified_symbol (gname
, strip_specific_htab
))
1404 /* Remove the group section if all members are removed. */
1405 first
= elt
= elf_next_in_group (sec
);
1408 if (!is_strip_section_1 (abfd
, elt
))
1410 elt
= elf_next_in_group (elt
);
1422 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1424 /* Always keep ELF note sections. */
1425 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
1426 return elf_section_type (isection
) == SHT_NOTE
;
1428 /* Always keep the .buildid section for PE/COFF.
1430 Strictly, this should be written "always keep the section storing the debug
1431 directory", but that may be the .text section for objects produced by some
1432 tools, which it is not sensible to keep. */
1433 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
)
1434 return strcmp (bfd_section_name (isection
), ".buildid") == 0;
1439 /* Return true if SYM is a hidden symbol. */
1442 is_hidden_symbol (asymbol
*sym
)
1444 elf_symbol_type
*elf_sym
;
1446 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1447 if (elf_sym
!= NULL
)
1448 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1457 /* Empty name is hopefully never a valid symbol name. */
1458 static const char * empty_name
= "";
1461 need_sym_before (struct addsym_node
**node
, const char *sym
)
1464 struct addsym_node
*ptr
= add_sym_list
;
1466 /* 'othersym' symbols are at the front of the list. */
1467 for (count
= 0; count
< add_symbols
; count
++)
1471 if (ptr
->othersym
== empty_name
)
1473 else if (strcmp (ptr
->othersym
, sym
) == 0)
1475 free ((char *) ptr
->othersym
);
1476 ptr
->othersym
= empty_name
;
1486 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1488 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1490 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1491 sym
->value
= ptr
->symval
;
1492 sym
->flags
= ptr
->flags
;
1495 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1497 fatal (_("Section %s not found"), ptr
->section
);
1501 sym
->section
= bfd_abs_section_ptr
;
1505 /* Choose which symbol entries to copy; put the result in OSYMS.
1506 We don't copy in place, because that confuses the relocs.
1507 Return the number of symbols to print. */
1510 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1511 asymbol
**isyms
, long symcount
)
1513 asymbol
**from
= isyms
, **to
= osyms
;
1514 long src_count
= 0, dst_count
= 0;
1515 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1517 for (; src_count
< symcount
; src_count
++)
1519 asymbol
*sym
= from
[src_count
];
1520 flagword flags
= sym
->flags
;
1521 char *name
= (char *) bfd_asymbol_name (sym
);
1523 bfd_boolean used_in_reloc
= FALSE
;
1524 bfd_boolean undefined
;
1525 bfd_boolean rem_leading_char
;
1526 bfd_boolean add_leading_char
;
1528 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1532 struct addsym_node
*ptr
;
1534 if (need_sym_before (&ptr
, name
))
1535 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1538 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1542 new_name
= (char *) lookup_sym_redefinition (name
);
1543 if (new_name
== name
1544 && (flags
& BSF_SECTION_SYM
) != 0)
1545 new_name
= (char *) find_section_rename (name
, NULL
);
1546 bfd_set_asymbol_name (sym
, new_name
);
1550 /* Check if we will remove the current leading character. */
1552 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1553 && (change_leading_char
1554 || (remove_leading_char
1555 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1557 || bfd_is_com_section (bfd_asymbol_section (sym
)))));
1559 /* Check if we will add a new leading character. */
1562 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1563 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1564 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1566 /* Short circuit for change_leading_char if we can do it in-place. */
1567 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1569 name
[0] = bfd_get_symbol_leading_char (obfd
);
1570 bfd_set_asymbol_name (sym
, name
);
1571 rem_leading_char
= FALSE
;
1572 add_leading_char
= FALSE
;
1575 /* Remove leading char. */
1576 if (rem_leading_char
)
1577 bfd_set_asymbol_name (sym
, ++name
);
1579 /* Add new leading char and/or prefix. */
1580 if (add_leading_char
|| prefix_symbols_string
)
1584 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1585 + strlen (name
) + 1);
1586 if (add_leading_char
)
1587 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1589 if (prefix_symbols_string
)
1591 strcpy (ptr
, prefix_symbols_string
);
1592 ptr
+= strlen (prefix_symbols_string
);
1596 bfd_set_asymbol_name (sym
, n
);
1600 if (strip_symbols
== STRIP_ALL
)
1602 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1603 || ((flags
& BSF_SECTION_SYM
) != 0
1604 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1608 used_in_reloc
= TRUE
;
1610 else if (relocatable
/* Relocatable file. */
1611 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1612 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1614 else if (bfd_decode_symclass (sym
) == 'I')
1615 /* Global symbols in $idata sections need to be retained
1616 even if relocatable is FALSE. External users of the
1617 library containing the $idata section may reference these
1620 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1621 || (flags
& BSF_WEAK
) != 0
1623 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1624 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1625 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1626 keep
= (strip_symbols
!= STRIP_DEBUG
1627 && strip_symbols
!= STRIP_UNNEEDED
1628 && ! convert_debugging
);
1629 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1630 /* COMDAT sections store special information in local
1631 symbols, so we cannot risk stripping any of them. */
1633 else /* Local symbol. */
1634 keep
= (strip_symbols
!= STRIP_UNNEEDED
1635 && (discard_locals
!= LOCALS_ALL
1636 && (discard_locals
!= LOCALS_START_L
1637 || ! bfd_is_local_label (abfd
, sym
))));
1639 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1641 /* There are multiple ways to set 'keep' above, but if it
1642 was the relocatable symbol case, then that's an error. */
1645 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1653 && !(flags
& BSF_KEEP
)
1654 && is_specified_symbol (name
, strip_unneeded_htab
))
1658 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1659 || is_specified_symbol (name
, keep_specific_htab
)))
1662 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1667 if ((flags
& BSF_GLOBAL
) != 0
1668 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1670 sym
->flags
&= ~ BSF_GLOBAL
;
1671 sym
->flags
|= BSF_WEAK
;
1675 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1676 && (is_specified_symbol (name
, localize_specific_htab
)
1677 || (htab_elements (keepglobal_specific_htab
) != 0
1678 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1679 || (localize_hidden
&& is_hidden_symbol (sym
))))
1681 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1682 sym
->flags
|= BSF_LOCAL
;
1686 && (flags
& BSF_LOCAL
)
1687 && is_specified_symbol (name
, globalize_specific_htab
))
1689 sym
->flags
&= ~ BSF_LOCAL
;
1690 sym
->flags
|= BSF_GLOBAL
;
1693 to
[dst_count
++] = sym
;
1698 struct addsym_node
*ptr
= add_sym_list
;
1700 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1704 if (ptr
->othersym
!= empty_name
)
1705 fatal (_("'before=%s' not found"), ptr
->othersym
);
1708 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1714 to
[dst_count
] = NULL
;
1719 /* Find the redefined name of symbol SOURCE. */
1722 lookup_sym_redefinition (const char *source
)
1724 struct redefine_node key_node
= {(char *) source
, NULL
};
1725 struct redefine_node
*redef_node
1726 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1728 return redef_node
== NULL
? source
: redef_node
->target
;
1731 /* Insert a node into symbol redefine hash tabel. */
1734 add_redefine_and_check (const char *cause
, const char *source
,
1737 struct redefine_node
*new_node
1738 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1740 new_node
->source
= strdup (source
);
1741 new_node
->target
= strdup (target
);
1743 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1744 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1747 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1748 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1751 /* Insert the NEW_NODE into hash table for quick search. */
1752 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1754 /* Insert the target string into the reverse hash table, this is needed for
1755 duplicated target string check. */
1756 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1760 /* Handle the --redefine-syms option. Read lines containing "old new"
1761 from the file, and add them to the symbol redefine list. */
1764 add_redefine_syms_file (const char *filename
)
1773 file
= fopen (filename
, "r");
1775 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1776 filename
, strerror (errno
));
1779 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1787 /* Collect the input symbol name. */
1788 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1796 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1804 /* Eat white space between the symbol names. */
1805 while (IS_WHITESPACE (c
))
1807 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1812 /* Collect the output symbol name. */
1814 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1822 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1830 /* Eat white space at end of line. */
1831 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1836 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1837 || c
== '\n' || c
== EOF
)
1840 /* Append the redefinition to the list. */
1842 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1853 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1855 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1856 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1859 /* Eat the rest of the line and finish it. */
1860 while (c
!= '\n' && c
!= EOF
)
1866 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1872 /* Copy unknown object file IBFD onto OBFD.
1873 Returns TRUE upon success, FALSE otherwise. */
1876 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1884 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1886 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1893 non_fatal (_("stat returns negative size for `%s'"),
1894 bfd_get_archive_filename (ibfd
));
1898 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1900 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1905 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1906 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1908 cbuf
= (char *) xmalloc (BUFSIZE
);
1910 while (ncopied
< size
)
1912 tocopy
= size
- ncopied
;
1913 if (tocopy
> BUFSIZE
)
1916 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1917 != (bfd_size_type
) tocopy
)
1919 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1924 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1925 != (bfd_size_type
) tocopy
)
1927 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1935 /* We should at least to be able to read it back when copying an
1936 unknown object in an archive. */
1937 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1942 typedef struct objcopy_internal_note
1944 Elf_Internal_Note note
;
1945 unsigned long padded_namesz
;
1948 } objcopy_internal_note
;
1950 #define DEBUG_MERGE 0
1953 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1955 #define merge_debug(format, ...)
1958 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
1961 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
1962 objcopy_internal_note
* pnote2
)
1964 if (pnote1
->end
< pnote2
->start
)
1965 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1966 Really we should extract the alignment of the section
1967 covered by the notes. */
1968 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1970 if (pnote2
->end
< pnote2
->start
)
1971 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
1973 if (pnote1
->end
< pnote2
->end
)
1976 if (pnote2
->end
< pnote1
->end
)
1982 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
1985 contained_by (objcopy_internal_note
* needle
,
1986 objcopy_internal_note
* haystack
)
1988 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
1992 is_open_note (objcopy_internal_note
* pnote
)
1994 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
1998 is_func_note (objcopy_internal_note
* pnote
)
2000 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2004 is_deleted_note (objcopy_internal_note
* pnote
)
2006 return pnote
->note
.type
== 0;
2010 is_version_note (objcopy_internal_note
* pnote
)
2012 return (pnote
->note
.namesz
> 4
2013 && pnote
->note
.namedata
[0] == 'G'
2014 && pnote
->note
.namedata
[1] == 'A'
2015 && pnote
->note
.namedata
[2] == '$'
2016 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2020 is_64bit (bfd
* abfd
)
2022 /* Should never happen, but let's be paranoid. */
2023 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2026 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2029 /* This sorting function is used to get the notes into an order
2030 that makes merging easy. */
2033 compare_gnu_build_notes (const void * data1
, const void * data2
)
2035 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2036 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2038 /* Sort notes based upon the attribute they record. */
2039 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2040 pnote2
->note
.namedata
+ 3,
2041 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2042 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2046 if (pnote1
->end
< pnote2
->start
)
2048 if (pnote1
->start
> pnote2
->end
)
2051 /* Overlaps - we should merge the two ranges. */
2052 if (pnote1
->start
< pnote2
->start
)
2054 if (pnote1
->end
> pnote2
->end
)
2056 if (pnote1
->end
< pnote2
->end
)
2059 /* Put OPEN notes before function notes. */
2060 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2062 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2068 /* This sorting function is used to get the notes into an order
2069 that makes eliminating address ranges easier. */
2072 sort_gnu_build_notes (const void * data1
, const void * data2
)
2074 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2075 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2077 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2079 /* Move deleted notes to the end. */
2080 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2083 /* Move OPEN notes to the start. */
2084 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2087 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2090 return 1; /* 1: F 2: O */
2093 /* Sort by starting address. */
2094 if (pnote1
->start
< pnote2
->start
)
2096 if (pnote1
->start
> pnote2
->start
)
2099 /* Then by end address (bigger range first). */
2100 if (pnote1
->end
> pnote2
->end
)
2102 if (pnote1
->end
< pnote2
->end
)
2105 /* Then by attribute type. */
2106 if (pnote1
->note
.namesz
> 4
2107 && pnote2
->note
.namesz
> 4
2108 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2109 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2114 /* Merge the notes on SEC, removing redundant entries.
2115 Returns the new, smaller size of the section upon success. */
2117 static bfd_size_type
2118 merge_gnu_build_notes (bfd
* abfd
,
2121 bfd_byte
* contents
)
2123 objcopy_internal_note
* pnotes_end
;
2124 objcopy_internal_note
* pnotes
= NULL
;
2125 objcopy_internal_note
* pnote
;
2126 bfd_size_type remain
= size
;
2127 unsigned version_1_seen
= 0;
2128 unsigned version_2_seen
= 0;
2129 unsigned version_3_seen
= 0;
2130 const char * err
= NULL
;
2131 bfd_byte
* in
= contents
;
2132 unsigned long previous_func_start
= 0;
2133 unsigned long previous_open_start
= 0;
2134 unsigned long previous_func_end
= 0;
2135 unsigned long previous_open_end
= 0;
2138 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2144 /* If there are relocs associated with this section then we
2145 cannot safely merge it. */
2146 relpp
= (arelent
**) xmalloc (relsize
);
2147 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2152 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2153 bfd_get_filename (abfd
), bfd_section_name (sec
));
2158 /* Make a copy of the notes and convert to our internal format.
2159 Minimum size of a note is 12 bytes. Also locate the version
2160 notes and check them. */
2161 pnote
= pnotes
= (objcopy_internal_note
*)
2162 xcalloc ((size
/ 12), sizeof (* pnote
));
2163 while (remain
>= 12)
2167 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2168 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2169 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2170 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2172 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2174 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2178 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2179 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2181 err
= _("corrupt GNU build attribute note: wrong note type");
2185 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2187 err
= _("corrupt GNU build attribute note: note too big");
2191 if (pnote
->note
.namesz
< 2)
2193 err
= _("corrupt GNU build attribute note: name too small");
2197 pnote
->note
.namedata
= (char *)(in
+ 12);
2198 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2200 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2201 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2203 if (pnote
->note
.namesz
> 2
2204 && pnote
->note
.namedata
[0] == '$'
2205 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2206 && pnote
->note
.namedata
[2] == '1')
2208 else if (is_version_note (pnote
))
2210 if (pnote
->note
.namedata
[4] == '2')
2212 else if (pnote
->note
.namedata
[4] == '3')
2216 err
= _("corrupt GNU build attribute note: unsupported version");
2221 switch (pnote
->note
.descsz
)
2228 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2229 /* FIXME: For version 1 and 2 notes we should try to
2230 calculate the end address by finding a symbol whose
2231 value is START, and then adding in its size.
2233 For now though, since v1 and v2 was not intended to
2234 handle gaps, we chose an artificially large end
2240 if (! is_64bit (abfd
))
2242 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2243 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2247 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2248 /* FIXME: For version 1 and 2 notes we should try to
2249 calculate the end address by finding a symbol whose
2250 value is START, and then adding in its size.
2252 For now though, since v1 and v2 was not intended to
2253 handle gaps, we chose an artificially large end
2260 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2261 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2265 err
= _("corrupt GNU build attribute note: bad description size");
2269 if (is_open_note (pnote
))
2272 previous_open_start
= start
;
2274 pnote
->start
= previous_open_start
;
2277 previous_open_end
= end
;
2279 pnote
->end
= previous_open_end
;
2284 previous_func_start
= start
;
2286 pnote
->start
= previous_func_start
;
2289 previous_func_end
= end
;
2291 pnote
->end
= previous_func_end
;
2294 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2296 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2305 /* Check that the notes are valid. */
2308 err
= _("corrupt GNU build attribute notes: excess data at end");
2312 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2315 err
= _("bad GNU build attribute notes: no known versions detected");
2318 /* This happens with glibc. No idea why. */
2319 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2320 bfd_get_filename (abfd
), bfd_section_name (sec
));
2325 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2326 || (version_1_seen
> 0 && version_3_seen
> 0)
2327 || (version_2_seen
> 0 && version_3_seen
> 0))
2329 err
= _("bad GNU build attribute notes: multiple different versions");
2333 /* We are now only supporting the merging v3+ notes
2334 - it makes things much simpler. */
2335 if (version_3_seen
== 0)
2337 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2341 merge_debug ("Merging section %s which contains %ld notes\n",
2342 sec
->name
, pnotes_end
- pnotes
);
2344 /* Sort the notes. */
2345 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2346 compare_gnu_build_notes
);
2349 merge_debug ("Results of initial sort:\n");
2350 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2351 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2352 (pnote
->note
.namedata
- (char *) contents
) - 12,
2353 pnote
->start
, pnote
->end
,
2355 pnote
->note
.namedata
[3],
2360 /* Now merge the notes. The rules are:
2361 1. If a note has a zero range, it can be eliminated.
2362 2. If two notes have the same namedata then:
2363 2a. If one note's range is fully covered by the other note
2364 then it can be deleted.
2365 2b. If one note's range partially overlaps or adjoins the
2366 other note then if they are both of the same type (open
2367 or func) then they can be merged and one deleted. If
2368 they are of different types then they cannot be merged. */
2369 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2371 /* Skip already deleted notes.
2372 FIXME: Can this happen ? We are scanning forwards and
2373 deleting backwards after all. */
2374 if (is_deleted_note (pnote
))
2377 /* Rule 1 - delete 0-range notes. */
2378 if (pnote
->start
== pnote
->end
)
2380 merge_debug ("Delete note at offset %#08lx - empty range\n",
2381 (pnote
->note
.namedata
- (char *) contents
) - 12);
2382 pnote
->note
.type
= 0;
2387 objcopy_internal_note
* back
;
2389 /* Rule 2: Check to see if there is an identical previous note. */
2390 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2392 if (is_deleted_note (back
))
2395 /* Our sorting function should have placed all identically
2396 attributed notes together, so if we see a note of a different
2397 attribute type stop searching. */
2398 if (back
->note
.namesz
!= pnote
->note
.namesz
2399 || memcmp (back
->note
.namedata
,
2400 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2403 if (back
->start
== pnote
->start
2404 && back
->end
== pnote
->end
)
2406 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2407 (pnote
->note
.namedata
- (char *) contents
) - 12,
2408 (back
->note
.namedata
- (char *) contents
) - 12);
2409 pnote
->note
.type
= 0;
2414 if (contained_by (pnote
, back
))
2416 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2417 (pnote
->note
.namedata
- (char *) contents
) - 12,
2418 (back
->note
.namedata
- (char *) contents
) - 12);
2419 pnote
->note
.type
= 0;
2424 /* This should not happen as we have sorted the
2425 notes with earlier starting addresses first. */
2426 if (contained_by (back
, pnote
))
2427 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2431 if (overlaps_or_adjoins (back
, pnote
)
2432 && is_func_note (back
) == is_func_note (pnote
))
2434 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2435 (pnote
->note
.namedata
- (char *) contents
) - 12,
2436 (back
->note
.namedata
- (char *) contents
) - 12);
2438 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2439 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2440 pnote
->note
.type
= 0;
2444 /* Don't scan too far back however. */
2447 /* FIXME: Not sure if this can ever be triggered. */
2448 merge_debug ("ITERATION LIMIT REACHED\n");
2453 if (! is_deleted_note (pnote
))
2454 merge_debug ("Unable to do anything with note at %#08lx\n",
2455 (pnote
->note
.namedata
- (char *) contents
) - 12);
2459 /* Resort the notes. */
2460 merge_debug ("Final sorting of notes\n");
2461 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2463 /* Reconstruct the ELF notes. */
2464 bfd_byte
* new_contents
;
2467 bfd_size_type new_size
;
2468 bfd_vma prev_start
= 0;
2469 bfd_vma prev_end
= 0;
2471 /* Not sure how, but the notes might grow in size.
2472 (eg see PR 1774507). Allow for this here. */
2473 new = new_contents
= xmalloc (size
* 2);
2474 for (pnote
= pnotes
, old
= contents
;
2478 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2480 if (! is_deleted_note (pnote
))
2482 /* Create the note, potentially using the
2483 address range of the previous note. */
2484 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2486 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2487 bfd_put_32 (abfd
, 0, new + 4);
2488 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2490 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2491 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2492 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2493 new += pnote
->padded_namesz
;
2497 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2498 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2499 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2501 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2502 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2503 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2504 new += pnote
->padded_namesz
;
2505 if (is_64bit (abfd
))
2507 bfd_put_64 (abfd
, pnote
->start
, new);
2508 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2513 bfd_put_32 (abfd
, pnote
->start
, new);
2514 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2518 prev_start
= pnote
->start
;
2519 prev_end
= pnote
->end
;
2527 merge_debug ("Results of merge:\n");
2528 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2529 if (! is_deleted_note (pnote
))
2530 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2531 (pnote
->note
.namedata
- (char *) contents
) - 12,
2532 pnote
->start
, pnote
->end
,
2534 pnote
->note
.namedata
[3],
2539 new_size
= new - new_contents
;
2540 if (new_size
< size
)
2542 memcpy (contents
, new_contents
, new_size
);
2545 free (new_contents
);
2550 bfd_set_error (bfd_error_bad_value
);
2551 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2559 /* Copy object file IBFD onto OBFD.
2560 Returns TRUE upon success, FALSE otherwise. */
2563 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2567 asection
**osections
= NULL
;
2569 asection
*gnu_debuglink_section
= NULL
;
2570 bfd_size_type
*gaps
= NULL
;
2571 bfd_size_type max_gap
= 0;
2574 enum bfd_architecture iarch
;
2578 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2579 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2580 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2582 /* PR 17636: Call non-fatal so that we return to our parent who
2583 may need to tidy temporary files. */
2584 non_fatal (_("Unable to change endianness of input file(s)"));
2588 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2590 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2594 if (ibfd
->sections
== NULL
)
2596 non_fatal (_("error: the input file '%s' has no sections"),
2597 bfd_get_archive_filename (ibfd
));
2601 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2603 if ((do_debug_sections
& compress
) != 0
2604 && do_debug_sections
!= compress
)
2606 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2607 bfd_get_archive_filename (ibfd
));
2611 if (do_elf_stt_common
)
2613 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2614 bfd_get_archive_filename (ibfd
));
2620 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2621 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2622 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2631 start
= bfd_get_start_address (ibfd
);
2632 start
+= change_start
;
2635 /* Neither the start address nor the flags
2636 need to be set for a core file. */
2637 if (bfd_get_format (obfd
) != bfd_core
)
2641 flags
= bfd_get_file_flags (ibfd
);
2642 flags
|= bfd_flags_to_set
;
2643 flags
&= ~bfd_flags_to_clear
;
2644 flags
&= bfd_applicable_file_flags (obfd
);
2646 if (strip_symbols
== STRIP_ALL
)
2647 flags
&= ~HAS_RELOC
;
2649 if (!bfd_set_start_address (obfd
, start
)
2650 || !bfd_set_file_flags (obfd
, flags
))
2652 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2657 /* Copy architecture of input file to output file. */
2658 iarch
= bfd_get_arch (ibfd
);
2659 imach
= bfd_get_mach (ibfd
);
2662 if (iarch
== bfd_arch_unknown
)
2664 iarch
= input_arch
->arch
;
2665 imach
= input_arch
->mach
;
2668 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2669 bfd_get_archive_filename (ibfd
));
2671 if (iarch
== bfd_arch_unknown
2672 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2673 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2675 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2679 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2680 && (ibfd
->target_defaulted
2681 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2683 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2684 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2685 bfd_get_archive_filename (ibfd
));
2687 non_fatal (_("Output file cannot represent architecture `%s'"),
2688 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2689 bfd_get_mach (ibfd
)));
2693 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2695 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2699 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2700 && bfd_pei_p (obfd
))
2702 /* Set up PE parameters. */
2703 pe_data_type
*pe
= pe_data (obfd
);
2705 /* Copy PE parameters before changing them. */
2706 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2707 && bfd_pei_p (ibfd
))
2708 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2710 if (pe_file_alignment
!= (bfd_vma
) -1)
2711 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2713 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2715 if (pe_heap_commit
!= (bfd_vma
) -1)
2716 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2718 if (pe_heap_reserve
!= (bfd_vma
) -1)
2719 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2721 if (pe_image_base
!= (bfd_vma
) -1)
2722 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2724 if (pe_section_alignment
!= (bfd_vma
) -1)
2725 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2727 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2729 if (pe_stack_commit
!= (bfd_vma
) -1)
2730 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2732 if (pe_stack_reserve
!= (bfd_vma
) -1)
2733 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2735 if (pe_subsystem
!= -1)
2736 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2738 if (pe_major_subsystem_version
!= -1)
2739 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2741 if (pe_minor_subsystem_version
!= -1)
2742 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2744 if (pe_file_alignment
> pe_section_alignment
)
2746 char file_alignment
[20], section_alignment
[20];
2748 sprintf_vma (file_alignment
, pe_file_alignment
);
2749 sprintf_vma (section_alignment
, pe_section_alignment
);
2750 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2752 file_alignment
, section_alignment
);
2759 if (osympp
!= isympp
)
2765 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2768 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2772 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2773 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2776 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2779 /* PR 17512: file: d6323821
2780 If the symbol table could not be loaded do not pretend that we have
2781 any symbols. This trips us up later on when we load the relocs. */
2785 osympp
= isympp
= NULL
;
2788 /* BFD mandates that all output sections be created and sizes set before
2789 any output is done. Thus, we traverse all sections multiple times. */
2790 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2792 if (!extract_symbol
)
2793 setup_bfd_headers (ibfd
, obfd
);
2795 if (add_sections
!= NULL
)
2797 struct section_add
*padd
;
2798 struct section_list
*pset
;
2800 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2804 pset
= find_section_list (padd
->name
, FALSE
,
2805 SECTION_CONTEXT_SET_FLAGS
);
2807 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2809 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2811 /* bfd_make_section_with_flags() does not return very helpful
2812 error codes, so check for the most likely user error first. */
2813 if (bfd_get_section_by_name (obfd
, padd
->name
))
2815 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2816 _("can't add section '%s'"), padd
->name
);
2821 /* We use LINKER_CREATED here so that the backend hooks
2822 will create any special section type information,
2823 instead of presuming we know what we're doing merely
2824 because we set the flags. */
2825 padd
->section
= bfd_make_section_with_flags
2826 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2827 if (padd
->section
== NULL
)
2829 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2830 _("can't create section `%s'"),
2836 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2838 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2842 pset
= find_section_list (padd
->name
, FALSE
,
2843 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2845 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2847 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2851 pset
= find_section_list (padd
->name
, FALSE
,
2852 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2855 padd
->section
->lma
= pset
->lma_val
;
2857 if (!bfd_set_section_alignment
2858 (padd
->section
, bfd_section_alignment (padd
->section
)))
2860 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2867 if (update_sections
!= NULL
)
2869 struct section_add
*pupdate
;
2871 for (pupdate
= update_sections
;
2873 pupdate
= pupdate
->next
)
2875 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2876 if (pupdate
->section
== NULL
)
2878 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2882 osec
= pupdate
->section
->output_section
;
2883 if (!bfd_set_section_size (osec
, pupdate
->size
))
2885 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2891 merged_note_section
* merged_note_sections
= NULL
;
2894 /* This palaver is necessary because we must set the output
2895 section size first, before its contents are ready. */
2896 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2898 if (! is_mergeable_note_section (ibfd
, osec
))
2901 /* If the section is going to be completly deleted then
2902 do not bother to merge it. */
2903 if (osec
->output_section
== NULL
)
2906 bfd_size_type size
= bfd_section_size (osec
);
2910 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2911 _("warning: note section is empty"));
2915 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2916 merged
->contents
= NULL
;
2917 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2919 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2920 _("warning: could not load note section"));
2925 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2928 /* FIXME: Once we have read the contents in, we must write
2929 them out again. So even if the mergeing has achieved
2930 nothing we still add this entry to the merge list. */
2932 if (size
!= merged
->size
2933 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2935 bfd_nonfatal_message (NULL
, obfd
, osec
,
2936 _("warning: failed to set merged notes size"));
2937 free (merged
->contents
);
2942 /* Add section to list of merged sections. */
2944 merged
->next
= merged_note_sections
;
2945 merged_note_sections
= merged
;
2949 if (dump_sections
!= NULL
)
2951 struct section_add
* pdump
;
2953 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2955 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2958 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2959 _("can't dump section '%s' - it does not exist"),
2964 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
2966 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2967 _("can't dump section - it has no contents"));
2971 bfd_size_type size
= bfd_section_size (osec
);
2974 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2975 _("can't dump section - it is empty"));
2980 f
= fopen (pdump
->filename
, FOPEN_WB
);
2983 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2984 _("could not open section dump file"));
2989 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
2991 if (fwrite (contents
, 1, size
, f
) != size
)
2993 non_fatal (_("error writing section contents to %s (error: %s)"),
3002 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3003 _("could not retrieve section contents"));
3010 if (gnu_debuglink_filename
!= NULL
)
3012 /* PR 15125: Give a helpful warning message if
3013 the debuglink section already exists, and
3014 allow the rest of the copy to complete. */
3015 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3017 non_fatal (_("%s: debuglink section already exists"),
3018 bfd_get_filename (obfd
));
3019 gnu_debuglink_filename
= NULL
;
3023 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3024 (obfd
, gnu_debuglink_filename
);
3026 if (gnu_debuglink_section
== NULL
)
3028 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3029 _("cannot create debug link section `%s'"),
3030 gnu_debuglink_filename
);
3034 /* Special processing for PE format files. We
3035 have no way to distinguish PE from COFF here. */
3036 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3038 bfd_vma debuglink_vma
;
3039 asection
* highest_section
;
3041 /* The PE spec requires that all sections be adjacent and sorted
3042 in ascending order of VMA. It also specifies that debug
3043 sections should be last. This is despite the fact that debug
3044 sections are not loaded into memory and so in theory have no
3047 This means that the debuglink section must be given a non-zero
3048 VMA which makes it contiguous with other debug sections. So
3049 walk the current section list, find the section with the
3050 highest VMA and start the debuglink section after that one. */
3051 for (osec
= obfd
->sections
, highest_section
= NULL
;
3055 && (highest_section
== NULL
3056 || osec
->vma
> highest_section
->vma
))
3057 highest_section
= osec
;
3059 if (highest_section
)
3060 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3061 + highest_section
->size
,
3062 /* FIXME: We ought to be using
3063 COFF_PAGE_SIZE here or maybe
3064 bfd_section_alignment() (if it
3065 was set) but since this is for PE
3066 and we know the required alignment
3067 it is easier just to hard code it. */
3070 /* Umm, not sure what to do in this case. */
3071 debuglink_vma
= 0x1000;
3073 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3078 c
= bfd_count_sections (obfd
);
3080 && (gap_fill_set
|| pad_to_set
))
3084 /* We must fill in gaps between the sections and/or we must pad
3085 the last section to a specified address. We do this by
3086 grabbing a list of the sections, sorting them by VMA, and
3087 increasing the section sizes as required to fill the gaps.
3088 We write out the gap contents below. */
3090 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
3092 bfd_map_over_sections (obfd
, get_sections
, &set
);
3094 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
3096 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
3097 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
3101 for (i
= 0; i
< c
- 1; i
++)
3105 bfd_vma gap_start
, gap_stop
;
3107 flags
= bfd_section_flags (osections
[i
]);
3108 if ((flags
& SEC_HAS_CONTENTS
) == 0
3109 || (flags
& SEC_LOAD
) == 0)
3112 size
= bfd_section_size (osections
[i
]);
3113 gap_start
= bfd_section_lma (osections
[i
]) + size
;
3114 gap_stop
= bfd_section_lma (osections
[i
+ 1]);
3115 if (gap_start
< gap_stop
)
3117 if (!bfd_set_section_size (osections
[i
],
3118 size
+ (gap_stop
- gap_start
)))
3120 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3121 _("Can't fill gap after section"));
3125 gaps
[i
] = gap_stop
- gap_start
;
3126 if (max_gap
< gap_stop
- gap_start
)
3127 max_gap
= gap_stop
- gap_start
;
3137 lma
= bfd_section_lma (osections
[c
- 1]);
3138 size
= bfd_section_size (osections
[c
- 1]);
3139 if (lma
+ size
< pad_to
)
3141 if (!bfd_set_section_size (osections
[c
- 1], pad_to
- lma
))
3143 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
3144 _("can't add padding"));
3149 gaps
[c
- 1] = pad_to
- (lma
+ size
);
3150 if (max_gap
< pad_to
- (lma
+ size
))
3151 max_gap
= pad_to
- (lma
+ size
);
3157 /* Symbol filtering must happen after the output sections
3158 have been created, but before their contents are set. */
3160 if (convert_debugging
)
3161 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3163 if (strip_symbols
== STRIP_DEBUG
3164 || strip_symbols
== STRIP_ALL
3165 || strip_symbols
== STRIP_UNNEEDED
3166 || strip_symbols
== STRIP_NONDEBUG
3167 || strip_symbols
== STRIP_DWO
3168 || strip_symbols
== STRIP_NONDWO
3169 || discard_locals
!= LOCALS_UNDEF
3171 || htab_elements (strip_specific_htab
) != 0
3172 || htab_elements (keep_specific_htab
) != 0
3173 || htab_elements (localize_specific_htab
) != 0
3174 || htab_elements (globalize_specific_htab
) != 0
3175 || htab_elements (keepglobal_specific_htab
) != 0
3176 || htab_elements (weaken_specific_htab
) != 0
3177 || htab_elements (redefine_specific_htab
) != 0
3178 || prefix_symbols_string
3181 || convert_debugging
3182 || change_leading_char
3183 || remove_leading_char
3184 || section_rename_list
3188 /* Mark symbols used in output relocations so that they
3189 are kept, even if they are local labels or static symbols.
3191 Note we iterate over the input sections examining their
3192 relocations since the relocations for the output sections
3193 haven't been set yet. mark_symbols_used_in_relocations will
3194 ignore input sections which have no corresponding output
3196 if (strip_symbols
!= STRIP_ALL
)
3198 bfd_set_error (bfd_error_no_error
);
3199 bfd_map_over_sections (ibfd
,
3200 mark_symbols_used_in_relocations
,
3202 if (bfd_get_error () != bfd_error_no_error
)
3209 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3210 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3213 if (convert_debugging
&& dhandle
!= NULL
)
3217 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3220 dhandle
= NULL
; /* Paranoia... */
3229 bfd_set_symtab (obfd
, osympp
, symcount
);
3231 /* This has to happen before section positions are set. */
3232 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3234 /* This has to happen after the symbol table has been set. */
3235 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3237 if (add_sections
!= NULL
)
3239 struct section_add
*padd
;
3241 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3243 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3246 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3252 if (update_sections
!= NULL
)
3254 struct section_add
*pupdate
;
3256 for (pupdate
= update_sections
;
3258 pupdate
= pupdate
->next
)
3260 osec
= pupdate
->section
->output_section
;
3261 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3264 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3270 if (merged_note_sections
!= NULL
)
3272 merged_note_section
* merged
= NULL
;
3274 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3276 if (! is_mergeable_note_section (obfd
, osec
))
3280 merged
= merged_note_sections
;
3282 /* It is likely that output sections are in the same order
3283 as the input sections, but do not assume that this is
3285 if (strcmp (bfd_section_name (merged
->sec
),
3286 bfd_section_name (osec
)) != 0)
3288 for (merged
= merged_note_sections
;
3290 merged
= merged
->next
)
3291 if (strcmp (bfd_section_name (merged
->sec
),
3292 bfd_section_name (osec
)) == 0)
3297 bfd_nonfatal_message
3299 _("error: failed to locate merged notes"));
3304 if (merged
->contents
== NULL
)
3306 bfd_nonfatal_message
3308 _("error: failed to merge notes"));
3312 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3315 bfd_nonfatal_message
3317 _("error: failed to copy merged notes into output"));
3321 merged
= merged
->next
;
3324 /* Free the memory. */
3325 merged_note_section
* next
;
3326 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3328 next
= merged
->next
;
3329 free (merged
->contents
);
3333 else if (merge_notes
&& ! is_strip
)
3334 non_fatal (_("%s: Could not find any mergeable note sections"),
3335 bfd_get_filename (ibfd
));
3337 if (gnu_debuglink_filename
!= NULL
)
3339 if (! bfd_fill_in_gnu_debuglink_section
3340 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3342 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3343 _("cannot fill debug link section `%s'"),
3344 gnu_debuglink_filename
);
3349 if (gap_fill_set
|| pad_to_set
)
3353 /* Fill in the gaps. */
3356 buf
= (bfd_byte
*) xmalloc (max_gap
);
3357 memset (buf
, gap_fill
, max_gap
);
3359 c
= bfd_count_sections (obfd
);
3360 for (i
= 0; i
< c
; i
++)
3368 off
= bfd_section_size (osections
[i
]) - left
;
3379 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3382 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3398 /* Allow the BFD backend to copy any private data it understands
3399 from the input BFD to the output BFD. This is done last to
3400 permit the routine to look at the filtered symbol table, which is
3401 important for the ECOFF code at least. */
3402 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3404 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3405 _("error copying private BFD data"));
3409 /* Switch to the alternate machine code. We have to do this at the
3410 very end, because we only initialize the header when we create
3411 the first section. */
3412 if (use_alt_mach_code
!= 0)
3414 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3416 non_fatal (_("this target does not support %lu alternative machine codes"),
3418 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3420 non_fatal (_("treating that number as an absolute e_machine value instead"));
3421 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3424 non_fatal (_("ignoring the alternative value"));
3431 /* Read each archive element in turn from IBFD, copy the
3432 contents to temp file, and keep the temp file handle.
3433 If 'force_output_target' is TRUE then make sure that
3434 all elements in the new archive are of the type
3438 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3439 bfd_boolean force_output_target
,
3440 const bfd_arch_info_type
*input_arch
)
3444 struct name_list
*next
;
3448 bfd
**ptr
= &obfd
->archive_head
;
3451 const char *filename
;
3453 /* PR 24281: It is not clear what should happen when copying a thin archive.
3454 One part is straight forward - if the output archive is in a different
3455 directory from the input archive then any relative paths in the library
3456 should be adjusted to the new location. But if any transformation
3457 options are active (eg strip, rename, add, etc) then the implication is
3458 that these should be applied to the files pointed to by the archive.
3459 But since objcopy is not destructive, this means that new files must be
3460 created, and there is no guidance for the names of the new files. (Plus
3461 this conflicts with one of the goals of thin libraries - only taking up
3462 a minimal amount of space in the file system).
3464 So for now we fail if an attempt is made to copy such libraries. */
3465 if (ibfd
->is_thin_archive
)
3468 bfd_set_error (bfd_error_invalid_operation
);
3469 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3470 _("sorry: copying thin archives is not currently supported"));
3474 /* Make a temp directory to hold the contents. */
3475 dir
= make_tempdir (bfd_get_filename (obfd
));
3477 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3480 if (strip_symbols
== STRIP_ALL
)
3481 obfd
->has_armap
= FALSE
;
3483 obfd
->has_armap
= ibfd
->has_armap
;
3484 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3487 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3491 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3493 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3496 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3497 goto cleanup_and_exit
;
3500 while (!status
&& this_element
!= NULL
)
3506 int stat_status
= 0;
3507 bfd_boolean del
= TRUE
;
3508 bfd_boolean ok_object
;
3510 /* PR binutils/17533: Do not allow directory traversal
3511 outside of the current directory tree by archive members. */
3512 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3514 non_fatal (_("illegal pathname found in archive member: %s"),
3515 bfd_get_filename (this_element
));
3517 goto cleanup_and_exit
;
3520 /* Create an output file for this member. */
3521 output_name
= concat (dir
, "/",
3522 bfd_get_filename (this_element
), (char *) 0);
3524 /* If the file already exists, make another temp dir. */
3525 if (stat (output_name
, &buf
) >= 0)
3527 char * tmpdir
= make_tempdir (output_name
);
3532 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3535 goto cleanup_and_exit
;
3538 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3543 output_name
= concat (tmpdir
, "/",
3544 bfd_get_filename (this_element
), (char *) 0);
3549 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3551 if (stat_status
!= 0)
3552 non_fatal (_("internal stat error on %s"),
3553 bfd_get_filename (this_element
));
3556 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3557 l
->name
= output_name
;
3562 ok_object
= bfd_check_format (this_element
, bfd_object
);
3564 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3565 _("Unable to recognise the format of file"));
3567 /* PR binutils/3110: Cope with archives
3568 containing multiple target types. */
3569 if (force_output_target
|| !ok_object
)
3570 output_bfd
= bfd_openw (output_name
, output_target
);
3572 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3574 if (output_bfd
== NULL
)
3576 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3578 goto cleanup_and_exit
;
3583 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3585 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3586 /* Try again as an unknown object file. */
3588 else if (!bfd_close (output_bfd
))
3590 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3591 /* Error in new object file. Don't change archive. */
3598 del
= !copy_unknown_object (this_element
, output_bfd
);
3599 if (!bfd_close_all_done (output_bfd
))
3601 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3602 /* Error in new object file. Don't change archive. */
3609 unlink (output_name
);
3614 if (preserve_dates
&& stat_status
== 0)
3615 set_times (output_name
, &buf
);
3617 /* Open the newly output file and attach to our list. */
3618 output_bfd
= bfd_openr (output_name
, output_target
);
3620 l
->obfd
= output_bfd
;
3623 ptr
= &output_bfd
->archive_next
;
3625 last_element
= this_element
;
3627 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3629 bfd_close (last_element
);
3634 filename
= bfd_get_filename (obfd
);
3635 if (!bfd_close (obfd
))
3638 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3641 filename
= bfd_get_filename (ibfd
);
3642 if (!bfd_close (ibfd
))
3645 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3649 /* Delete all the files that we opened. */
3651 struct name_list
* next
;
3653 for (l
= list
; l
!= NULL
; l
= next
)
3655 if (l
->obfd
== NULL
)
3659 bfd_close (l
->obfd
);
3671 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3673 /* This is only relevant to Coff targets. */
3674 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3677 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3678 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3679 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3683 /* The top-level control. */
3686 copy_file (const char *input_filename
, const char *output_filename
,
3687 const char *input_target
, const char *output_target
,
3688 const bfd_arch_info_type
*input_arch
)
3691 char **obj_matching
;
3692 char **core_matching
;
3693 off_t size
= get_file_size (input_filename
);
3698 non_fatal (_("error: the input file '%s' is empty"),
3704 /* To allow us to do "strip *" without dying on the first
3705 non-object file, failures are nonfatal. */
3706 ibfd
= bfd_openr (input_filename
, input_target
);
3709 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3714 switch (do_debug_sections
)
3718 case compress_gnu_zlib
:
3719 case compress_gabi_zlib
:
3720 ibfd
->flags
|= BFD_COMPRESS
;
3721 /* Don't check if input is ELF here since this information is
3722 only available after bfd_check_format_matches is called. */
3723 if (do_debug_sections
!= compress_gnu_zlib
)
3724 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3727 ibfd
->flags
|= BFD_DECOMPRESS
;
3733 switch (do_elf_stt_common
)
3735 case elf_stt_common
:
3736 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3739 case no_elf_stt_common
:
3740 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3746 if (bfd_check_format (ibfd
, bfd_archive
))
3748 bfd_boolean force_output_target
;
3751 /* bfd_get_target does not return the correct value until
3752 bfd_check_format succeeds. */
3753 if (output_target
== NULL
)
3755 output_target
= bfd_get_target (ibfd
);
3756 force_output_target
= FALSE
;
3759 force_output_target
= TRUE
;
3761 obfd
= bfd_openw (output_filename
, output_target
);
3764 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3769 if (gnu_debuglink_filename
!= NULL
)
3771 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3772 bfd_get_filename (ibfd
));
3773 gnu_debuglink_filename
= NULL
;
3776 /* This is a no-op on non-Coff targets. */
3777 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3779 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3781 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3786 /* bfd_get_target does not return the correct value until
3787 bfd_check_format succeeds. */
3788 if (output_target
== NULL
)
3789 output_target
= bfd_get_target (ibfd
);
3791 obfd
= bfd_openw (output_filename
, output_target
);
3794 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3798 /* This is a no-op on non-Coff targets. */
3799 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3801 if (! copy_object (ibfd
, obfd
, input_arch
))
3804 /* PR 17512: file: 0f15796a.
3805 If the file could not be copied it may not be in a writeable
3806 state. So use bfd_close_all_done to avoid the possibility of
3807 writing uninitialised data into the file. */
3808 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3811 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3815 if (!bfd_close (ibfd
))
3818 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3824 bfd_error_type obj_error
= bfd_get_error ();
3825 bfd_error_type core_error
;
3827 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3829 /* This probably can't happen.. */
3830 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3831 free (obj_matching
);
3835 core_error
= bfd_get_error ();
3836 /* Report the object error in preference to the core error. */
3837 if (obj_error
!= core_error
)
3838 bfd_set_error (obj_error
);
3840 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3842 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3844 list_matching_formats (obj_matching
);
3845 free (obj_matching
);
3847 if (core_error
== bfd_error_file_ambiguously_recognized
)
3849 list_matching_formats (core_matching
);
3850 free (core_matching
);
3857 /* Add a name to the section renaming list. */
3860 add_section_rename (const char * old_name
, const char * new_name
,
3863 section_rename
* srename
;
3865 /* Check for conflicts first. */
3866 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3867 if (strcmp (srename
->old_name
, old_name
) == 0)
3869 /* Silently ignore duplicate definitions. */
3870 if (strcmp (srename
->new_name
, new_name
) == 0
3871 && srename
->flags
== flags
)
3874 fatal (_("Multiple renames of section %s"), old_name
);
3877 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3879 srename
->old_name
= old_name
;
3880 srename
->new_name
= new_name
;
3881 srename
->flags
= flags
;
3882 srename
->next
= section_rename_list
;
3884 section_rename_list
= srename
;
3887 /* Check the section rename list for a new name of the input section
3888 called OLD_NAME. Returns the new name if one is found and sets
3889 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3892 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3894 const section_rename
*srename
;
3896 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3897 if (strcmp (srename
->old_name
, old_name
) == 0)
3899 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3900 *returned_flags
= srename
->flags
;
3902 return srename
->new_name
;
3908 /* Once each of the sections is copied, we may still need to do some
3909 finalization work for private section headers. Do that here. */
3912 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3914 /* Allow the BFD backend to copy any private data it understands
3915 from the input section to the output section. */
3916 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3919 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3920 _("error in private header data"));
3924 /* All went well. */
3928 /* Create a section in OBFD with the same
3929 name and attributes as ISECTION in IBFD. */
3932 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3934 bfd
*obfd
= (bfd
*) obfdarg
;
3935 struct section_list
*p
;
3943 char *prefix
= NULL
;
3944 bfd_boolean make_nobits
;
3945 unsigned int alignment
;
3947 if (is_strip_section (ibfd
, isection
))
3950 /* Get the, possibly new, name of the output section. */
3951 name
= bfd_section_name (isection
);
3952 flags
= bfd_section_flags (isection
);
3953 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3955 flags
&= bfd_applicable_section_flags (ibfd
);
3956 flags
&= bfd_applicable_section_flags (obfd
);
3958 name
= find_section_rename (name
, &flags
);
3960 /* Prefix sections. */
3961 if (prefix_alloc_sections_string
3962 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
3963 prefix
= prefix_alloc_sections_string
;
3964 else if (prefix_sections_string
)
3965 prefix
= prefix_sections_string
;
3971 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3977 make_nobits
= FALSE
;
3979 p
= find_section_list (bfd_section_name (isection
), FALSE
,
3980 SECTION_CONTEXT_SET_FLAGS
);
3982 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3983 else if (strip_symbols
== STRIP_NONDEBUG
3984 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3985 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3987 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3988 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3992 /* Twiddle the input section flags so that it seems to
3993 elf.c:copy_private_bfd_data that section flags have not
3994 changed between input and output sections. This hack
3995 prevents wholesale rewriting of the program headers. */
3996 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4000 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4002 if (osection
== NULL
)
4004 err
= _("failed to create output section");
4009 elf_section_type (osection
) = SHT_NOBITS
;
4011 size
= bfd_section_size (isection
);
4012 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4014 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4015 else if (extract_symbol
)
4017 if (!bfd_set_section_size (osection
, size
))
4019 err
= _("failed to set size");
4023 vma
= bfd_section_vma (isection
);
4024 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4025 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4028 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4034 vma
+= change_section_address
;
4036 if (!bfd_set_section_vma (osection
, vma
))
4038 err
= _("failed to set vma");
4042 lma
= isection
->lma
;
4043 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4044 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4047 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4053 lma
+= change_section_address
;
4055 osection
->lma
= lma
;
4057 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4058 SECTION_CONTEXT_SET_ALIGNMENT
);
4060 alignment
= p
->alignment
;
4062 alignment
= bfd_section_alignment (isection
);
4064 /* FIXME: This is probably not enough. If we change the LMA we
4065 may have to recompute the header for the file as well. */
4066 if (!bfd_set_section_alignment (osection
, alignment
))
4068 err
= _("failed to set alignment");
4072 /* Copy merge entity size. */
4073 osection
->entsize
= isection
->entsize
;
4075 /* Copy compress status. */
4076 osection
->compress_status
= isection
->compress_status
;
4078 /* This used to be mangle_section; we do here to avoid using
4079 bfd_get_section_by_name since some formats allow multiple
4080 sections with the same name. */
4081 isection
->output_section
= osection
;
4082 isection
->output_offset
= 0;
4084 if ((isection
->flags
& SEC_GROUP
) != 0)
4086 asymbol
*gsym
= group_signature (isection
);
4090 gsym
->flags
|= BSF_KEEP
;
4091 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4092 elf_group_id (isection
) = gsym
;
4096 /* Allow the BFD backend to copy any private data it understands
4097 from the input section to the output section. */
4098 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4100 err
= _("failed to copy private data");
4104 /* All went well. */
4109 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4112 /* Return TRUE if input section ISECTION should be skipped. */
4115 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4121 /* If we have already failed earlier on,
4122 do not keep on generating complaints now. */
4129 if (is_strip_section (ibfd
, isection
))
4132 if (is_update_section (ibfd
, isection
))
4135 /* When merging a note section we skip the copying of the contents,
4136 but not the copying of the relocs associated with the contents. */
4137 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4140 flags
= bfd_section_flags (isection
);
4141 if ((flags
& SEC_GROUP
) != 0)
4144 osection
= isection
->output_section
;
4145 size
= bfd_section_size (isection
);
4147 if (size
== 0 || osection
== 0)
4153 /* Add section SECTION_PATTERN to the list of sections that will have their
4154 relocations removed. */
4157 handle_remove_relocations_option (const char *section_pattern
)
4159 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4162 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4163 otherwise return FALSE. If the user has requested that relocations be
4164 removed from a section that does not have relocations then this
4165 function will still return TRUE. */
4168 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4170 return (find_section_list (bfd_section_name (isection
), FALSE
,
4171 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4174 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4175 A special case is detected here, if the user asks to remove a relocation
4176 section (one starting with ".rela" or ".rel") then this removal must
4177 be done using a different technique in a relocatable object. */
4180 handle_remove_section_option (const char *section_pattern
)
4182 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4183 if (strncmp (section_pattern
, ".rel", 4) == 0)
4185 section_pattern
+= 4;
4186 if (*section_pattern
== 'a')
4188 if (*section_pattern
)
4189 handle_remove_relocations_option (section_pattern
);
4191 sections_removed
= TRUE
;
4194 /* Copy relocations in input section ISECTION of IBFD to an output
4195 section with the same name in OBFDARG. If stripping then don't
4196 copy any relocation info. */
4199 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4201 bfd
*obfd
= (bfd
*) obfdarg
;
4207 if (skip_section (ibfd
, isection
, FALSE
))
4210 osection
= isection
->output_section
;
4212 /* Core files and DWO files do not need to be relocated. */
4213 if (bfd_get_format (obfd
) == bfd_core
4214 || strip_symbols
== STRIP_NONDWO
4215 || discard_relocations (ibfd
, isection
))
4219 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4223 /* Do not complain if the target does not support relocations. */
4224 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4229 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4237 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4238 osection
->flags
&= ~SEC_RELOC
;
4242 if (isection
->orelocation
!= NULL
)
4244 /* Some other function has already set up the output relocs
4245 for us, so scan those instead of the default relocs. */
4246 relcount
= isection
->reloc_count
;
4247 relpp
= isection
->orelocation
;
4251 relpp
= (arelent
**) xmalloc (relsize
);
4252 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4256 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4257 _("relocation count is negative"));
4262 if (strip_symbols
== STRIP_ALL
)
4264 /* Remove relocations which are not in
4265 keep_strip_specific_list. */
4266 arelent
**temp_relpp
;
4267 long temp_relcount
= 0;
4270 temp_relpp
= (arelent
**) xmalloc (relsize
);
4271 for (i
= 0; i
< relcount
; i
++)
4273 /* PR 17512: file: 9e907e0c. */
4274 if (relpp
[i
]->sym_ptr_ptr
4276 && * relpp
[i
]->sym_ptr_ptr
)
4277 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4278 keep_specific_htab
))
4279 temp_relpp
[temp_relcount
++] = relpp
[i
];
4281 relcount
= temp_relcount
;
4282 if (isection
->orelocation
== NULL
)
4287 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4290 osection
->flags
&= ~SEC_RELOC
;
4296 /* Copy the data of input section ISECTION of IBFD
4297 to an output section with the same name in OBFD. */
4300 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4302 bfd
*obfd
= (bfd
*) obfdarg
;
4303 struct section_list
*p
;
4307 if (skip_section (ibfd
, isection
, TRUE
))
4310 osection
= isection
->output_section
;
4311 /* The output SHF_COMPRESSED section size is different from input if
4312 ELF classes of input and output aren't the same. We can't use
4313 the output section size since --interleave will shrink the output
4314 section. Size will be updated if the section is converted. */
4315 size
= bfd_section_size (isection
);
4317 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4318 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4320 bfd_byte
*memhunk
= NULL
;
4322 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4323 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4327 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4334 /* We don't handle leftover bytes (too many possible behaviors,
4335 and we don't know what the user wants). The section length
4336 must be a multiple of the number of bytes to swap. */
4337 if ((size
% reverse_bytes
) == 0)
4342 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4343 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4345 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4348 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4349 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4353 /* User must pad the section up in order to do this. */
4354 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4355 bfd_section_name (isection
), reverse_bytes
);
4360 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4361 char *from
= (char *) memhunk
+ copy_byte
;
4362 char *to
= (char *) memhunk
;
4363 char *end
= (char *) memhunk
+ size
;
4366 /* If the section address is not exactly divisible by the interleave,
4367 then we must bias the from address. If the copy_byte is less than
4368 the bias, then we must skip forward one interleave, and increment
4370 int extra
= isection
->lma
% interleave
;
4372 if (copy_byte
< extra
)
4375 for (; from
< end
; from
+= interleave
)
4376 for (i
= 0; i
< copy_width
; i
++)
4378 if (&from
[i
] >= end
)
4383 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4384 osection
->lma
/= interleave
;
4385 if (copy_byte
< extra
)
4389 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4392 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4398 else if ((p
= find_section_list (bfd_section_name (isection
),
4399 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4400 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4402 void *memhunk
= xmalloc (size
);
4404 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4405 flag--they can just remove the section entirely and add it
4406 back again. However, we do permit them to turn on the
4407 SEC_HAS_CONTENTS flag, and take it to mean that the section
4408 contents should be zeroed out. */
4410 memset (memhunk
, 0, size
);
4411 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4414 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4422 /* Get all the sections. This is used when --gap-fill or --pad-to is
4426 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4428 asection
***secppp
= (asection
***) secppparg
;
4430 **secppp
= osection
;
4434 /* Sort sections by LMA. This is called via qsort, and is used when
4435 --gap-fill or --pad-to is used. We force non loadable or empty
4436 sections to the front, where they are easier to ignore. */
4439 compare_section_lma (const void *arg1
, const void *arg2
)
4441 const asection
*sec1
= *(const asection
**) arg1
;
4442 const asection
*sec2
= *(const asection
**) arg2
;
4443 flagword flags1
, flags2
;
4445 /* Sort non loadable sections to the front. */
4446 flags1
= sec1
->flags
;
4447 flags2
= sec2
->flags
;
4448 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4449 || (flags1
& SEC_LOAD
) == 0)
4451 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4452 && (flags2
& SEC_LOAD
) != 0)
4457 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4458 || (flags2
& SEC_LOAD
) == 0)
4462 /* Sort sections by LMA. */
4463 if (sec1
->lma
> sec2
->lma
)
4465 if (sec1
->lma
< sec2
->lma
)
4468 /* Sort sections with the same LMA by size. */
4469 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4471 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4474 if (sec1
->id
> sec2
->id
)
4476 if (sec1
->id
< sec2
->id
)
4481 /* Mark all the symbols which will be used in output relocations with
4482 the BSF_KEEP flag so that those symbols will not be stripped.
4484 Ignore relocations which will not appear in the output file. */
4487 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4489 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4494 /* Ignore an input section with no corresponding output section. */
4495 if (isection
->output_section
== NULL
)
4498 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4501 /* Do not complain if the target does not support relocations. */
4502 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4504 bfd_fatal (bfd_get_filename (ibfd
));
4510 relpp
= (arelent
**) xmalloc (relsize
);
4511 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4513 bfd_fatal (bfd_get_filename (ibfd
));
4515 /* Examine each symbol used in a relocation. If it's not one of the
4516 special bfd section symbols, then mark it with BSF_KEEP. */
4517 for (i
= 0; i
< relcount
; i
++)
4519 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4520 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4521 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4522 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4523 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4524 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4525 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4532 /* Write out debugging information. */
4535 write_debugging_info (bfd
*obfd
, void *dhandle
,
4536 long *symcountp ATTRIBUTE_UNUSED
,
4537 asymbol
***symppp ATTRIBUTE_UNUSED
)
4539 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4540 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4542 bfd_byte
*syms
, *strings
= NULL
;
4543 bfd_size_type symsize
, stringsize
;
4544 asection
*stabsec
, *stabstrsec
;
4547 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4552 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4553 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4554 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4556 || stabstrsec
== NULL
4557 || !bfd_set_section_size (stabsec
, symsize
)
4558 || !bfd_set_section_size (stabstrsec
, stringsize
)
4559 || !bfd_set_section_alignment (stabsec
, 2)
4560 || !bfd_set_section_alignment (stabstrsec
, 0))
4562 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4563 _("can't create debugging section"));
4568 /* We can get away with setting the section contents now because
4569 the next thing the caller is going to do is copy over the
4570 real sections. We may someday have to split the contents
4571 setting out of this function. */
4572 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4573 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4576 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4577 _("can't set debugging section contents"));
4585 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4586 _("don't know how to write debugging information for %s"),
4587 bfd_get_target (obfd
));
4591 /* If neither -D nor -U was specified explicitly,
4592 then use the configured default. */
4594 default_deterministic (void)
4596 if (deterministic
< 0)
4597 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4601 strip_main (int argc
, char *argv
[])
4603 char *input_target
= NULL
;
4604 char *output_target
= NULL
;
4605 bfd_boolean show_version
= FALSE
;
4606 bfd_boolean formats_info
= FALSE
;
4609 char *output_file
= NULL
;
4610 bfd_boolean merge_notes_set
= FALSE
;
4612 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4613 strip_options
, (int *) 0)) != EOF
)
4618 input_target
= optarg
;
4621 output_target
= optarg
;
4624 input_target
= output_target
= optarg
;
4627 handle_remove_section_option (optarg
);
4629 case OPTION_KEEP_SECTION
:
4630 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4632 case OPTION_REMOVE_RELOCS
:
4633 handle_remove_relocations_option (optarg
);
4636 strip_symbols
= STRIP_ALL
;
4640 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4641 strip_symbols
= STRIP_DEBUG
;
4643 case OPTION_STRIP_DWO
:
4644 strip_symbols
= STRIP_DWO
;
4646 case OPTION_STRIP_UNNEEDED
:
4647 strip_symbols
= STRIP_UNNEEDED
;
4650 add_specific_symbol (optarg
, keep_specific_htab
);
4654 merge_notes_set
= TRUE
;
4656 case OPTION_NO_MERGE_NOTES
:
4657 merge_notes
= FALSE
;
4658 merge_notes_set
= TRUE
;
4661 add_specific_symbol (optarg
, strip_specific_htab
);
4664 output_file
= optarg
;
4667 preserve_dates
= TRUE
;
4670 deterministic
= TRUE
;
4673 deterministic
= FALSE
;
4676 discard_locals
= LOCALS_ALL
;
4679 discard_locals
= LOCALS_START_L
;
4685 show_version
= TRUE
;
4687 case OPTION_FORMATS_INFO
:
4688 formats_info
= TRUE
;
4690 case OPTION_ONLY_KEEP_DEBUG
:
4691 strip_symbols
= STRIP_NONDEBUG
;
4693 case OPTION_KEEP_FILE_SYMBOLS
:
4694 keep_file_symbols
= 1;
4697 /* We've been given a long option. */
4704 strip_usage (stdout
, 0);
4706 strip_usage (stderr
, 1);
4710 /* If the user has not expressly chosen to merge/not-merge ELF notes
4711 then enable the merging unless we are stripping debug or dwo info. */
4712 if (! merge_notes_set
4713 && (strip_symbols
== STRIP_UNDEF
4714 || strip_symbols
== STRIP_ALL
4715 || strip_symbols
== STRIP_UNNEEDED
4716 || strip_symbols
== STRIP_NONDEBUG
4717 || strip_symbols
== STRIP_NONDWO
))
4727 print_version ("strip");
4729 default_deterministic ();
4731 /* Default is to strip all symbols. */
4732 if (strip_symbols
== STRIP_UNDEF
4733 && discard_locals
== LOCALS_UNDEF
4734 && htab_elements (strip_specific_htab
) == 0)
4735 strip_symbols
= STRIP_ALL
;
4737 if (output_target
== NULL
)
4738 output_target
= input_target
;
4742 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4743 strip_usage (stderr
, 1);
4745 for (; i
< argc
; i
++)
4747 int hold_status
= status
;
4748 struct stat statbuf
;
4751 if (get_file_size (argv
[i
]) < 1)
4758 /* No need to check the return value of stat().
4759 It has already been checked in get_file_size(). */
4760 stat (argv
[i
], &statbuf
);
4762 if (output_file
== NULL
4763 || filename_cmp (argv
[i
], output_file
) == 0)
4764 tmpname
= make_tempname (argv
[i
]);
4766 tmpname
= output_file
;
4768 if (tmpname
== NULL
)
4770 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4771 _("could not create temporary file to hold stripped copy"));
4777 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4781 set_times (tmpname
, &statbuf
);
4782 if (output_file
!= tmpname
)
4783 status
= (smart_rename (tmpname
,
4784 output_file
? output_file
: argv
[i
],
4785 preserve_dates
) != 0);
4787 status
= hold_status
;
4790 unlink_if_ordinary (tmpname
);
4791 if (output_file
!= tmpname
)
4798 /* Set up PE subsystem. */
4801 set_pe_subsystem (const char *s
)
4803 const char *version
, *subsystem
;
4813 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4814 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4815 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4816 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4817 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4818 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4819 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4820 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4821 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4822 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4828 /* Check for the presence of a version number. */
4829 version
= strchr (s
, ':');
4830 if (version
== NULL
)
4834 int len
= version
- s
;
4838 version
= copy
+ 1 + len
;
4839 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4841 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4843 non_fatal (_("%s: bad version in PE subsystem"), s
);
4846 /* Check for numeric subsystem. */
4847 value
= (short) strtol (subsystem
, ©
, 0);
4850 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4851 if (v
[i
].value
== value
)
4853 pe_subsystem
= value
;
4854 set_def
= v
[i
].set_def
;
4860 /* Search for subsystem by name. */
4861 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4862 if (strcmp (subsystem
, v
[i
].name
) == 0)
4864 pe_subsystem
= v
[i
].value
;
4865 set_def
= v
[i
].set_def
;
4873 fatal (_("unknown PE subsystem: %s"), s
);
4878 if (pe_file_alignment
== (bfd_vma
) -1)
4879 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4880 if (pe_section_alignment
== (bfd_vma
) -1)
4881 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4885 free ((char *) subsystem
);
4888 /* Convert EFI target to PEI target. */
4891 convert_efi_target (char *efi
)
4897 if (strcmp (efi
+ 4, "ia32") == 0)
4899 /* Change ia32 to i386. */
4904 else if (strcmp (efi
+ 4, "x86_64") == 0)
4906 /* Change x86_64 to x86-64. */
4911 /* Allocate and return a pointer to a struct section_add, initializing the
4912 structure using ARG, a string in the format "sectionname=filename".
4913 The returned structure will have its next pointer set to NEXT. The
4914 OPTION field is the name of the command line option currently being
4915 parsed, and is only used if an error needs to be reported. */
4917 static struct section_add
*
4918 init_section_add (const char *arg
,
4919 struct section_add
*next
,
4922 struct section_add
*pa
;
4925 s
= strchr (arg
, '=');
4927 fatal (_("bad format for %s"), option
);
4929 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4930 pa
->name
= xstrndup (arg
, s
- arg
);
4931 pa
->filename
= s
+ 1;
4933 pa
->contents
= NULL
;
4939 /* Load the file specified in PA, allocating memory to hold the file
4940 contents, and store a pointer to the allocated memory in the contents
4941 field of PA. The size field of PA is also updated. All errors call
4945 section_add_load_file (struct section_add
*pa
)
4950 /* We don't use get_file_size so that we can do
4951 --add-section .note.GNU_stack=/dev/null
4952 get_file_size doesn't work on /dev/null. */
4954 f
= fopen (pa
->filename
, FOPEN_RB
);
4956 fatal (_("cannot open: %s: %s"),
4957 pa
->filename
, strerror (errno
));
4961 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
4969 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
4972 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
4974 fatal (_("%s: fread failed"), pa
->filename
);
4985 copy_main (int argc
, char *argv
[])
4987 char *input_filename
= NULL
;
4988 char *output_filename
= NULL
;
4990 char *input_target
= NULL
;
4991 char *output_target
= NULL
;
4992 bfd_boolean show_version
= FALSE
;
4993 bfd_boolean change_warn
= TRUE
;
4994 bfd_boolean formats_info
= FALSE
;
4995 bfd_boolean use_globalize
= FALSE
;
4996 bfd_boolean use_keep_global
= FALSE
;
4998 struct stat statbuf
;
4999 const bfd_arch_info_type
*input_arch
= NULL
;
5001 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5002 copy_options
, (int *) 0)) != EOF
)
5007 copy_byte
= atoi (optarg
);
5009 fatal (_("byte number must be non-negative"));
5013 input_arch
= bfd_scan_arch (optarg
);
5014 if (input_arch
== NULL
)
5015 fatal (_("architecture %s unknown"), optarg
);
5021 interleave
= atoi (optarg
);
5023 fatal (_("interleave must be positive"));
5029 case OPTION_INTERLEAVE_WIDTH
:
5030 copy_width
= atoi (optarg
);
5032 fatal(_("interleave width must be positive"));
5036 case 's': /* "source" - 'I' is preferred */
5037 input_target
= optarg
;
5041 case 'd': /* "destination" - 'O' is preferred */
5042 output_target
= optarg
;
5046 input_target
= output_target
= optarg
;
5050 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5051 sections_copied
= TRUE
;
5055 handle_remove_section_option (optarg
);
5058 case OPTION_KEEP_SECTION
:
5059 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5062 case OPTION_REMOVE_RELOCS
:
5063 handle_remove_relocations_option (optarg
);
5067 strip_symbols
= STRIP_ALL
;
5071 strip_symbols
= STRIP_DEBUG
;
5074 case OPTION_STRIP_DWO
:
5075 strip_symbols
= STRIP_DWO
;
5078 case OPTION_STRIP_UNNEEDED
:
5079 strip_symbols
= STRIP_UNNEEDED
;
5082 case OPTION_ONLY_KEEP_DEBUG
:
5083 strip_symbols
= STRIP_NONDEBUG
;
5086 case OPTION_KEEP_FILE_SYMBOLS
:
5087 keep_file_symbols
= 1;
5090 case OPTION_ADD_GNU_DEBUGLINK
:
5091 long_section_names
= ENABLE
;
5092 gnu_debuglink_filename
= optarg
;
5096 add_specific_symbol (optarg
, keep_specific_htab
);
5102 case OPTION_NO_MERGE_NOTES
:
5103 merge_notes
= FALSE
;
5107 add_specific_symbol (optarg
, strip_specific_htab
);
5110 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5111 add_specific_symbol (optarg
, strip_unneeded_htab
);
5115 add_specific_symbol (optarg
, localize_specific_htab
);
5118 case OPTION_GLOBALIZE_SYMBOL
:
5119 use_globalize
= TRUE
;
5120 add_specific_symbol (optarg
, globalize_specific_htab
);
5124 use_keep_global
= TRUE
;
5125 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5129 add_specific_symbol (optarg
, weaken_specific_htab
);
5133 preserve_dates
= TRUE
;
5137 deterministic
= TRUE
;
5141 deterministic
= FALSE
;
5149 discard_locals
= LOCALS_ALL
;
5153 discard_locals
= LOCALS_START_L
;
5161 show_version
= TRUE
;
5164 case OPTION_FORMATS_INFO
:
5165 formats_info
= TRUE
;
5172 case OPTION_ADD_SECTION
:
5173 add_sections
= init_section_add (optarg
, add_sections
,
5175 section_add_load_file (add_sections
);
5178 case OPTION_UPDATE_SECTION
:
5179 update_sections
= init_section_add (optarg
, update_sections
,
5180 "--update-section");
5181 section_add_load_file (update_sections
);
5184 case OPTION_DUMP_SECTION
:
5185 dump_sections
= init_section_add (optarg
, dump_sections
,
5189 case OPTION_ADD_SYMBOL
:
5192 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5194 newsym
->next
= NULL
;
5195 s
= strchr (optarg
, '=');
5197 fatal (_("bad format for %s"), "--add-symbol");
5198 t
= strchr (s
+ 1, ':');
5200 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5203 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5204 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5208 newsym
->section
= NULL
;
5209 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5213 t
= strchr (t
+ 1, ',');
5214 newsym
->othersym
= NULL
;
5216 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5218 newsym
->flags
= BSF_GLOBAL
;
5220 /* Keep 'othersym' symbols at the front of the list. */
5221 if (newsym
->othersym
)
5223 newsym
->next
= add_sym_list
;
5225 add_sym_tail
= &newsym
->next
;
5226 add_sym_list
= newsym
;
5230 *add_sym_tail
= newsym
;
5231 add_sym_tail
= &newsym
->next
;
5237 case OPTION_CHANGE_START
:
5238 change_start
= parse_vma (optarg
, "--change-start");
5241 case OPTION_CHANGE_SECTION_ADDRESS
:
5242 case OPTION_CHANGE_SECTION_LMA
:
5243 case OPTION_CHANGE_SECTION_VMA
:
5245 struct section_list
* p
;
5246 unsigned int context
= 0;
5250 char *option
= NULL
;
5255 case OPTION_CHANGE_SECTION_ADDRESS
:
5256 option
= "--change-section-address";
5257 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5259 case OPTION_CHANGE_SECTION_LMA
:
5260 option
= "--change-section-lma";
5261 context
= SECTION_CONTEXT_ALTER_LMA
;
5263 case OPTION_CHANGE_SECTION_VMA
:
5264 option
= "--change-section-vma";
5265 context
= SECTION_CONTEXT_ALTER_VMA
;
5269 s
= strchr (optarg
, '=');
5272 s
= strchr (optarg
, '+');
5275 s
= strchr (optarg
, '-');
5277 fatal (_("bad format for %s"), option
);
5282 /* Correct the context. */
5285 case OPTION_CHANGE_SECTION_ADDRESS
:
5286 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5288 case OPTION_CHANGE_SECTION_LMA
:
5289 context
= SECTION_CONTEXT_SET_LMA
;
5291 case OPTION_CHANGE_SECTION_VMA
:
5292 context
= SECTION_CONTEXT_SET_VMA
;
5298 name
= (char *) xmalloc (len
+ 1);
5299 strncpy (name
, optarg
, len
);
5302 p
= find_section_list (name
, TRUE
, context
);
5304 val
= parse_vma (s
+ 1, option
);
5310 case OPTION_CHANGE_SECTION_ADDRESS
:
5314 case OPTION_CHANGE_SECTION_LMA
:
5318 case OPTION_CHANGE_SECTION_VMA
:
5325 case OPTION_CHANGE_ADDRESSES
:
5326 change_section_address
= parse_vma (optarg
, "--change-addresses");
5327 change_start
= change_section_address
;
5330 case OPTION_CHANGE_WARNINGS
:
5334 case OPTION_CHANGE_LEADING_CHAR
:
5335 change_leading_char
= TRUE
;
5338 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5341 if (strcasecmp (optarg
, "none") == 0)
5342 do_debug_sections
= decompress
;
5343 else if (strcasecmp (optarg
, "zlib") == 0)
5344 do_debug_sections
= compress_zlib
;
5345 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5346 do_debug_sections
= compress_gnu_zlib
;
5347 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5348 do_debug_sections
= compress_gabi_zlib
;
5350 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5354 do_debug_sections
= compress
;
5357 case OPTION_DEBUGGING
:
5358 convert_debugging
= TRUE
;
5361 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5362 do_debug_sections
= decompress
;
5365 case OPTION_ELF_STT_COMMON
:
5366 if (strcasecmp (optarg
, "yes") == 0)
5367 do_elf_stt_common
= elf_stt_common
;
5368 else if (strcasecmp (optarg
, "no") == 0)
5369 do_elf_stt_common
= no_elf_stt_common
;
5371 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5375 case OPTION_GAP_FILL
:
5377 bfd_vma gap_fill_vma
;
5379 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5380 gap_fill
= (bfd_byte
) gap_fill_vma
;
5381 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5385 sprintf_vma (buff
, gap_fill_vma
);
5387 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5390 gap_fill_set
= TRUE
;
5394 case OPTION_NO_CHANGE_WARNINGS
:
5395 change_warn
= FALSE
;
5399 pad_to
= parse_vma (optarg
, "--pad-to");
5403 case OPTION_REMOVE_LEADING_CHAR
:
5404 remove_leading_char
= TRUE
;
5407 case OPTION_REDEFINE_SYM
:
5409 /* Insert this redefinition onto redefine_specific_htab. */
5413 const char *nextarg
;
5414 char *source
, *target
;
5416 s
= strchr (optarg
, '=');
5418 fatal (_("bad format for %s"), "--redefine-sym");
5421 source
= (char *) xmalloc (len
+ 1);
5422 strncpy (source
, optarg
, len
);
5426 len
= strlen (nextarg
);
5427 target
= (char *) xmalloc (len
+ 1);
5428 strcpy (target
, nextarg
);
5430 add_redefine_and_check ("--redefine-sym", source
, target
);
5437 case OPTION_REDEFINE_SYMS
:
5438 add_redefine_syms_file (optarg
);
5441 case OPTION_SET_SECTION_FLAGS
:
5443 struct section_list
*p
;
5448 s
= strchr (optarg
, '=');
5450 fatal (_("bad format for %s"), "--set-section-flags");
5453 name
= (char *) xmalloc (len
+ 1);
5454 strncpy (name
, optarg
, len
);
5457 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5459 p
->flags
= parse_flags (s
+ 1);
5463 case OPTION_SET_SECTION_ALIGNMENT
:
5465 struct section_list
*p
;
5471 s
= strchr (optarg
, '=');
5473 fatal (_("bad format for --set-section-alignment: argument needed"));
5475 align
= atoi (s
+ 1);
5477 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5479 /* Convert integer alignment into a power-of-two alignment. */
5481 while ((align
& 1) == 0)
5488 /* Number has more than on 1, i.e. wasn't a power of 2. */
5489 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5491 /* Add the alignment setting to the section list. */
5493 name
= (char *) xmalloc (len
+ 1);
5494 strncpy (name
, optarg
, len
);
5497 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5499 p
->alignment
= palign
;
5503 case OPTION_RENAME_SECTION
:
5506 const char *eq
, *fl
;
5511 eq
= strchr (optarg
, '=');
5513 fatal (_("bad format for %s"), "--rename-section");
5517 fatal (_("bad format for %s"), "--rename-section");
5519 old_name
= (char *) xmalloc (len
+ 1);
5520 strncpy (old_name
, optarg
, len
);
5524 fl
= strchr (eq
, ',');
5527 flags
= parse_flags (fl
+ 1);
5537 fatal (_("bad format for %s"), "--rename-section");
5539 new_name
= (char *) xmalloc (len
+ 1);
5540 strncpy (new_name
, eq
, len
);
5543 add_section_rename (old_name
, new_name
, flags
);
5547 case OPTION_SET_START
:
5548 set_start
= parse_vma (optarg
, "--set-start");
5549 set_start_set
= TRUE
;
5552 case OPTION_SREC_LEN
:
5553 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5556 case OPTION_SREC_FORCES3
:
5557 _bfd_srec_forceS3
= TRUE
;
5560 case OPTION_STRIP_SYMBOLS
:
5561 add_specific_symbols (optarg
, strip_specific_htab
,
5562 &strip_specific_buffer
);
5565 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5566 add_specific_symbols (optarg
, strip_unneeded_htab
,
5567 &strip_unneeded_buffer
);
5570 case OPTION_KEEP_SYMBOLS
:
5571 add_specific_symbols (optarg
, keep_specific_htab
,
5572 &keep_specific_buffer
);
5575 case OPTION_LOCALIZE_HIDDEN
:
5576 localize_hidden
= TRUE
;
5579 case OPTION_LOCALIZE_SYMBOLS
:
5580 add_specific_symbols (optarg
, localize_specific_htab
,
5581 &localize_specific_buffer
);
5584 case OPTION_LONG_SECTION_NAMES
:
5585 if (!strcmp ("enable", optarg
))
5586 long_section_names
= ENABLE
;
5587 else if (!strcmp ("disable", optarg
))
5588 long_section_names
= DISABLE
;
5589 else if (!strcmp ("keep", optarg
))
5590 long_section_names
= KEEP
;
5592 fatal (_("unknown long section names option '%s'"), optarg
);
5595 case OPTION_GLOBALIZE_SYMBOLS
:
5596 use_globalize
= TRUE
;
5597 add_specific_symbols (optarg
, globalize_specific_htab
,
5598 &globalize_specific_buffer
);
5601 case OPTION_KEEPGLOBAL_SYMBOLS
:
5602 use_keep_global
= TRUE
;
5603 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5604 &keepglobal_specific_buffer
);
5607 case OPTION_WEAKEN_SYMBOLS
:
5608 add_specific_symbols (optarg
, weaken_specific_htab
,
5609 &weaken_specific_buffer
);
5612 case OPTION_ALT_MACH_CODE
:
5613 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5614 if (use_alt_mach_code
== 0)
5615 fatal (_("unable to parse alternative machine code"));
5618 case OPTION_PREFIX_SYMBOLS
:
5619 prefix_symbols_string
= optarg
;
5622 case OPTION_PREFIX_SECTIONS
:
5623 prefix_sections_string
= optarg
;
5626 case OPTION_PREFIX_ALLOC_SECTIONS
:
5627 prefix_alloc_sections_string
= optarg
;
5630 case OPTION_READONLY_TEXT
:
5631 bfd_flags_to_set
|= WP_TEXT
;
5632 bfd_flags_to_clear
&= ~WP_TEXT
;
5635 case OPTION_WRITABLE_TEXT
:
5636 bfd_flags_to_clear
|= WP_TEXT
;
5637 bfd_flags_to_set
&= ~WP_TEXT
;
5641 bfd_flags_to_set
|= D_PAGED
;
5642 bfd_flags_to_clear
&= ~D_PAGED
;
5646 bfd_flags_to_clear
|= D_PAGED
;
5647 bfd_flags_to_set
&= ~D_PAGED
;
5650 case OPTION_EXTRACT_DWO
:
5651 strip_symbols
= STRIP_NONDWO
;
5654 case OPTION_EXTRACT_SYMBOL
:
5655 extract_symbol
= TRUE
;
5658 case OPTION_REVERSE_BYTES
:
5660 int prev
= reverse_bytes
;
5662 reverse_bytes
= atoi (optarg
);
5663 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5664 fatal (_("number of bytes to reverse must be positive and even"));
5666 if (prev
&& prev
!= reverse_bytes
)
5667 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5672 case OPTION_FILE_ALIGNMENT
:
5673 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5679 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5681 || (*end
!= '.' && *end
!= '\0'))
5682 non_fatal (_("%s: invalid reserve value for --heap"),
5684 else if (*end
!= '\0')
5686 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5688 non_fatal (_("%s: invalid commit value for --heap"),
5694 case OPTION_IMAGE_BASE
:
5695 pe_image_base
= parse_vma (optarg
, "--image-base");
5698 case OPTION_PE_SECTION_ALIGNMENT
:
5699 pe_section_alignment
= parse_vma (optarg
,
5700 "--section-alignment");
5703 case OPTION_SUBSYSTEM
:
5704 set_pe_subsystem (optarg
);
5710 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5712 || (*end
!= '.' && *end
!= '\0'))
5713 non_fatal (_("%s: invalid reserve value for --stack"),
5715 else if (*end
!= '\0')
5717 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5719 non_fatal (_("%s: invalid commit value for --stack"),
5725 case OPTION_VERILOG_DATA_WIDTH
:
5726 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5727 if (VerilogDataWidth
< 1)
5728 fatal (_("verilog data width must be at least 1 byte"));
5732 /* We've been given a long option. */
5737 copy_usage (stdout
, 0);
5740 copy_usage (stderr
, 1);
5744 if (use_globalize
&& use_keep_global
)
5745 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5754 print_version ("objcopy");
5756 if (interleave
&& copy_byte
== -1)
5757 fatal (_("interleave start byte must be set with --byte"));
5759 if (copy_byte
>= interleave
)
5760 fatal (_("byte number must be less than interleave"));
5762 if (copy_width
> interleave
- copy_byte
)
5763 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5765 if (optind
== argc
|| optind
+ 2 < argc
)
5766 copy_usage (stderr
, 1);
5768 input_filename
= argv
[optind
];
5769 if (optind
+ 1 < argc
)
5770 output_filename
= argv
[optind
+ 1];
5772 default_deterministic ();
5774 /* Default is to strip no symbols. */
5775 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5776 strip_symbols
= STRIP_NONE
;
5778 if (output_target
== NULL
)
5779 output_target
= input_target
;
5781 /* Convert input EFI target to PEI target. */
5782 if (input_target
!= NULL
5783 && strncmp (input_target
, "efi-", 4) == 0)
5787 efi
= xstrdup (output_target
+ 4);
5788 if (strncmp (efi
, "bsdrv-", 6) == 0
5789 || strncmp (efi
, "rtdrv-", 6) == 0)
5791 else if (strncmp (efi
, "app-", 4) != 0)
5792 fatal (_("unknown input EFI target: %s"), input_target
);
5795 convert_efi_target (efi
);
5798 /* Convert output EFI target to PEI target. */
5799 if (output_target
!= NULL
5800 && strncmp (output_target
, "efi-", 4) == 0)
5804 efi
= xstrdup (output_target
+ 4);
5805 if (strncmp (efi
, "app-", 4) == 0)
5807 if (pe_subsystem
== -1)
5808 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5810 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5812 if (pe_subsystem
== -1)
5813 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5816 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5818 if (pe_subsystem
== -1)
5819 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5823 fatal (_("unknown output EFI target: %s"), output_target
);
5825 if (pe_file_alignment
== (bfd_vma
) -1)
5826 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5827 if (pe_section_alignment
== (bfd_vma
) -1)
5828 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5830 output_target
= efi
;
5831 convert_efi_target (efi
);
5835 if (stat (input_filename
, & statbuf
) < 0)
5836 fatal (_("warning: could not locate '%s'. System error message: %s"),
5837 input_filename
, strerror (errno
));
5839 /* If there is no destination file, or the source and destination files
5840 are the same, then create a temp and rename the result into the input. */
5841 if (output_filename
== NULL
5842 || filename_cmp (input_filename
, output_filename
) == 0)
5843 tmpname
= make_tempname (input_filename
);
5845 tmpname
= output_filename
;
5847 if (tmpname
== NULL
)
5848 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5849 input_filename
, strerror (errno
));
5851 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5855 set_times (tmpname
, &statbuf
);
5856 if (tmpname
!= output_filename
)
5857 status
= (smart_rename (tmpname
, input_filename
,
5858 preserve_dates
) != 0);
5861 unlink_if_ordinary (tmpname
);
5863 if (tmpname
!= output_filename
)
5868 struct section_list
*p
;
5870 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5874 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5878 sprintf_vma (buff
, p
->vma_val
);
5880 /* xgettext:c-format */
5881 non_fatal (_("%s %s%c0x%s never used"),
5882 "--change-section-vma",
5884 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5888 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5892 sprintf_vma (buff
, p
->lma_val
);
5894 /* xgettext:c-format */
5895 non_fatal (_("%s %s%c0x%s never used"),
5896 "--change-section-lma",
5898 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5905 if (strip_specific_buffer
)
5906 free (strip_specific_buffer
);
5908 if (strip_unneeded_buffer
)
5909 free (strip_unneeded_buffer
);
5911 if (keep_specific_buffer
)
5912 free (keep_specific_buffer
);
5914 if (localize_specific_buffer
)
5915 free (globalize_specific_buffer
);
5917 if (globalize_specific_buffer
)
5918 free (globalize_specific_buffer
);
5920 if (keepglobal_specific_buffer
)
5921 free (keepglobal_specific_buffer
);
5923 if (weaken_specific_buffer
)
5924 free (weaken_specific_buffer
);
5930 main (int argc
, char *argv
[])
5932 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5933 setlocale (LC_MESSAGES
, "");
5935 #if defined (HAVE_SETLOCALE)
5936 setlocale (LC_CTYPE
, "");
5938 bindtextdomain (PACKAGE
, LOCALEDIR
);
5939 textdomain (PACKAGE
);
5941 program_name
= argv
[0];
5942 xmalloc_set_program_name (program_name
);
5944 START_PROGRESS (program_name
, 0);
5946 expandargv (&argc
, &argv
);
5948 strip_symbols
= STRIP_UNDEF
;
5949 discard_locals
= LOCALS_UNDEF
;
5951 if (bfd_init () != BFD_INIT_MAGIC
)
5952 fatal (_("fatal error: libbfd ABI mismatch"));
5953 set_default_bfd_target ();
5957 int i
= strlen (program_name
);
5958 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5959 /* Drop the .exe suffix, if any. */
5960 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
5963 program_name
[i
] = '\0';
5966 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
5969 create_symbol_htabs ();
5972 bfd_set_error_program_name (argv
[0]);
5975 strip_main (argc
, argv
);
5977 copy_main (argc
, argv
);
5979 END_PROGRESS (program_name
);