1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2019 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
;
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 ("share", SEC_COFF_SHARED
);
784 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
785 PARSE_FLAG ("merge", SEC_MERGE
);
786 PARSE_FLAG ("strings", SEC_STRINGS
);
792 copy
= (char *) xmalloc (len
+ 1);
793 strncpy (copy
, s
, len
);
795 non_fatal (_("unrecognized section flag `%s'"), copy
);
796 fatal (_("supported flags: %s"),
797 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
807 /* Parse symbol flags into a flagword, with a fatal error if the
808 string can't be parsed. */
811 parse_symflags (const char *s
, char **other
)
821 snext
= strchr (s
, ',');
830 #define PARSE_FLAG(fname, fval) \
831 else if (len == sizeof fname - 1 \
832 && strncasecmp (fname, s, len) == 0) \
835 #define PARSE_OTHER(fname, fval) \
836 else if (len >= sizeof fname \
837 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
838 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
841 PARSE_FLAG ("local", BSF_LOCAL
);
842 PARSE_FLAG ("global", BSF_GLOBAL
);
843 PARSE_FLAG ("export", BSF_EXPORT
);
844 PARSE_FLAG ("debug", BSF_DEBUGGING
);
845 PARSE_FLAG ("function", BSF_FUNCTION
);
846 PARSE_FLAG ("weak", BSF_WEAK
);
847 PARSE_FLAG ("section", BSF_SECTION_SYM
);
848 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
849 PARSE_FLAG ("warning", BSF_WARNING
);
850 PARSE_FLAG ("indirect", BSF_INDIRECT
);
851 PARSE_FLAG ("file", BSF_FILE
);
852 PARSE_FLAG ("object", BSF_OBJECT
);
853 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
854 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
855 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
856 PARSE_OTHER ("before=", *other
);
864 copy
= (char *) xmalloc (len
+ 1);
865 strncpy (copy
, s
, len
);
867 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
868 fatal (_("supported flags: %s"),
869 "local, global, export, debug, function, weak, section, "
870 "constructor, warning, indirect, file, object, synthetic, "
871 "indirect-function, unique-object, before=<othersym>");
881 /* Find and optionally add an entry in the change_sections list.
883 We need to be careful in how we match section names because of the support
884 for wildcard characters. For example suppose that the user has invoked
887 --set-section-flags .debug_*=debug
888 --set-section-flags .debug_str=readonly,debug
889 --change-section-address .debug_*ranges=0x1000
891 With the idea that all debug sections will receive the DEBUG flag, the
892 .debug_str section will also receive the READONLY flag and the
893 .debug_ranges and .debug_aranges sections will have their address set to
894 0x1000. (This may not make much sense, but it is just an example).
896 When adding the section name patterns to the section list we need to make
897 sure that previous entries do not match with the new entry, unless the
898 match is exact. (In which case we assume that the user is overriding
899 the previous entry with the new context).
901 When matching real section names to the section list we make use of the
902 wildcard characters, but we must do so in context. Eg if we are setting
903 section addresses then we match for .debug_ranges but not for .debug_info.
905 Finally, if ADD is false and we do find a match, we mark the section list
908 static struct section_list
*
909 find_section_list (const char *name
, bfd_boolean add
, unsigned int context
)
911 struct section_list
*p
, *match
= NULL
;
913 /* assert ((context & ((1 << 7) - 1)) != 0); */
915 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
919 if (strcmp (p
->pattern
, name
) == 0)
921 /* Check for context conflicts. */
922 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
923 && (context
& SECTION_CONTEXT_COPY
))
924 || ((context
& SECTION_CONTEXT_REMOVE
)
925 && (p
->context
& SECTION_CONTEXT_COPY
)))
926 fatal (_("error: %s both copied and removed"), name
);
928 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
929 && (context
& SECTION_CONTEXT_ALTER_VMA
))
930 || ((context
& SECTION_CONTEXT_SET_VMA
)
931 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
932 fatal (_("error: %s both sets and alters VMA"), name
);
934 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
935 && (context
& SECTION_CONTEXT_ALTER_LMA
))
936 || ((context
& SECTION_CONTEXT_SET_LMA
)
937 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
938 fatal (_("error: %s both sets and alters LMA"), name
);
940 /* Extend the context. */
941 p
->context
|= context
;
945 /* If we are not adding a new name/pattern then
946 only check for a match if the context applies. */
947 else if (p
->context
& context
)
949 /* We could check for the presence of wildchar characters
950 first and choose between calling strcmp and fnmatch,
951 but is that really worth it ? */
952 if (p
->pattern
[0] == '!')
954 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
962 if (fnmatch (p
->pattern
, name
, 0) == 0)
978 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
981 p
->context
= context
;
986 p
->next
= change_sections
;
992 /* S1 is the entry node already in the table, S2 is the key node. */
995 eq_string_redefnode (const void *s1
, const void *s2
)
997 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
998 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
999 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
1002 /* P is redefine node. Hash value is generated from its "source" filed. */
1005 htab_hash_redefnode (const void *p
)
1007 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
1008 return htab_hash_string (redefnode
->source
);
1011 /* Create hashtab used for redefine node. */
1014 create_symbol2redef_htab (void)
1016 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
1020 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
1023 eq_string (const void *s1
, const void *s2
)
1025 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
1029 create_symbol_htab (void)
1031 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
1035 create_symbol_htabs (void)
1037 strip_specific_htab
= create_symbol_htab ();
1038 strip_unneeded_htab
= create_symbol_htab ();
1039 keep_specific_htab
= create_symbol_htab ();
1040 localize_specific_htab
= create_symbol_htab ();
1041 globalize_specific_htab
= create_symbol_htab ();
1042 keepglobal_specific_htab
= create_symbol_htab ();
1043 weaken_specific_htab
= create_symbol_htab ();
1044 redefine_specific_htab
= create_symbol2redef_htab ();
1045 /* As there is no bidirectional hash table in libiberty, need a reverse table
1046 to check duplicated target string. */
1047 redefine_specific_reverse_htab
= create_symbol_htab ();
1050 /* Add a symbol to strip_specific_list. */
1053 add_specific_symbol (const char *name
, htab_t htab
)
1055 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1058 /* Like add_specific_symbol, but the element type is void *. */
1061 add_specific_symbol_node (const void *node
, htab_t htab
)
1063 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1066 /* Add symbols listed in `filename' to strip_specific_list. */
1068 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1069 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1072 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1078 unsigned int line_count
;
1080 size
= get_file_size (filename
);
1087 buffer
= (char *) xmalloc (size
+ 2);
1088 f
= fopen (filename
, FOPEN_RT
);
1090 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1092 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1093 fatal (_("%s: fread failed"), filename
);
1096 buffer
[size
] = '\n';
1097 buffer
[size
+ 1] = '\0';
1101 for (line
= buffer
; * line
!= '\0'; line
++)
1106 int finished
= FALSE
;
1108 for (eol
= line
;; eol
++)
1114 /* Cope with \n\r. */
1122 /* Cope with \r\n. */
1133 /* Line comment, Terminate the line here, in case a
1134 name is present and then allow the rest of the
1135 loop to find the real end of the line. */
1147 /* A name may now exist somewhere between 'line' and 'eol'.
1148 Strip off leading whitespace and trailing whitespace,
1149 then add it to the list. */
1150 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1152 for (name_end
= name
;
1153 (! IS_WHITESPACE (* name_end
))
1154 && (! IS_LINE_TERMINATOR (* name_end
));
1158 if (! IS_LINE_TERMINATOR (* name_end
))
1162 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1165 if (! IS_LINE_TERMINATOR (* extra
))
1166 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1167 filename
, line_count
);
1172 if (name_end
> name
)
1173 add_specific_symbol (name
, htab
);
1175 /* Advance line pointer to end of line. The 'eol ++' in the for
1176 loop above will then advance us to the start of the next line. */
1181 /* Do not free the buffer. Parts of it will have been referenced
1182 in the calls to add_specific_symbol. */
1186 /* See whether a symbol should be stripped or kept
1187 based on strip_specific_list and keep_symbols. */
1190 is_specified_symbol_predicate (void **slot
, void *data
)
1192 struct is_specified_symbol_predicate_data
*d
=
1193 (struct is_specified_symbol_predicate_data
*) data
;
1194 const char *slot_name
= (char *) *slot
;
1196 if (*slot_name
!= '!')
1198 if (! fnmatch (slot_name
, d
->name
, 0))
1201 /* Continue traversal, there might be a non-match rule. */
1207 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1210 /* Stop traversal. */
1215 /* Continue traversal. */
1220 is_specified_symbol (const char *name
, htab_t htab
)
1224 struct is_specified_symbol_predicate_data data
;
1229 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1234 return htab_find (htab
, name
) != NULL
;
1237 /* Return a pointer to the symbol used as a signature for GROUP. */
1240 group_signature (asection
*group
)
1242 bfd
*abfd
= group
->owner
;
1243 Elf_Internal_Shdr
*ghdr
;
1245 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1249 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1252 ghdr
= &elf_section_data (group
)->this_hdr
;
1253 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1255 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1256 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1258 if (ghdr
->sh_info
> 0
1259 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1260 return isympp
[ghdr
->sh_info
- 1];
1265 /* Return TRUE if the section is a DWO section. */
1268 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1270 const char *name
= bfd_section_name (sec
);
1271 int len
= strlen (name
);
1273 return strncmp (name
+ len
- 4, ".dwo", 4) == 0;
1276 /* Return TRUE if section SEC is in the update list. */
1279 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1281 if (update_sections
!= NULL
)
1283 struct section_add
*pupdate
;
1285 for (pupdate
= update_sections
;
1287 pupdate
= pupdate
->next
)
1289 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1298 is_mergeable_note_section (bfd
* abfd
, asection
* sec
)
1301 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1302 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1303 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1304 We should add support for more note types. */
1305 && ((elf_section_data (sec
)->this_hdr
.sh_flags
& SHF_GNU_BUILD_NOTE
) != 0
1306 /* Old versions of GAS (prior to 2.27) could not set the section
1307 flags to OS-specific values, so we also accept sections that
1308 start with the expected name. */
1309 || (CONST_STRNEQ (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
))))
1315 /* See if a non-group section is being removed. */
1318 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1320 if (find_section_list (bfd_section_name (sec
), FALSE
, SECTION_CONTEXT_KEEP
)
1324 if (sections_removed
|| sections_copied
)
1326 struct section_list
*p
;
1327 struct section_list
*q
;
1329 p
= find_section_list (bfd_section_name (sec
), FALSE
,
1330 SECTION_CONTEXT_REMOVE
);
1331 q
= find_section_list (bfd_section_name (sec
), FALSE
,
1332 SECTION_CONTEXT_COPY
);
1335 fatal (_("error: section %s matches both remove and copy options"),
1336 bfd_section_name (sec
));
1337 if (p
&& is_update_section (abfd
, sec
))
1338 fatal (_("error: section %s matches both update and remove options"),
1339 bfd_section_name (sec
));
1343 if (sections_copied
&& q
== NULL
)
1347 if ((bfd_section_flags (sec
) & SEC_DEBUGGING
) != 0)
1349 if (strip_symbols
== STRIP_DEBUG
1350 || strip_symbols
== STRIP_UNNEEDED
1351 || strip_symbols
== STRIP_ALL
1352 || discard_locals
== LOCALS_ALL
1353 || convert_debugging
)
1355 /* By default we don't want to strip .reloc section.
1356 This section has for pe-coff special meaning. See
1357 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1358 if (strcmp (bfd_section_name (sec
), ".reloc") != 0)
1362 if (strip_symbols
== STRIP_DWO
)
1363 return is_dwo_section (abfd
, sec
);
1365 if (strip_symbols
== STRIP_NONDEBUG
)
1369 if (strip_symbols
== STRIP_NONDWO
)
1370 return !is_dwo_section (abfd
, sec
);
1375 /* See if a section is being removed. */
1378 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1380 if (is_strip_section_1 (abfd
, sec
))
1383 if ((bfd_section_flags (sec
) & SEC_GROUP
) != 0)
1387 asection
*elt
, *first
;
1389 gsym
= group_signature (sec
);
1390 /* Strip groups without a valid signature. */
1395 If we are going to strip the group signature symbol, then
1396 strip the group section too. */
1398 if ((strip_symbols
== STRIP_ALL
1399 && !is_specified_symbol (gname
, keep_specific_htab
))
1400 || is_specified_symbol (gname
, strip_specific_htab
))
1403 /* Remove the group section if all members are removed. */
1404 first
= elt
= elf_next_in_group (sec
);
1407 if (!is_strip_section_1 (abfd
, elt
))
1409 elt
= elf_next_in_group (elt
);
1421 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1423 /* Always keep ELF note sections. */
1424 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
1425 return elf_section_type (isection
) == SHT_NOTE
;
1427 /* Always keep the .buildid section for PE/COFF.
1429 Strictly, this should be written "always keep the section storing the debug
1430 directory", but that may be the .text section for objects produced by some
1431 tools, which it is not sensible to keep. */
1432 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
)
1433 return strcmp (bfd_section_name (isection
), ".buildid") == 0;
1438 /* Return true if SYM is a hidden symbol. */
1441 is_hidden_symbol (asymbol
*sym
)
1443 elf_symbol_type
*elf_sym
;
1445 elf_sym
= elf_symbol_from (sym
->the_bfd
, sym
);
1446 if (elf_sym
!= NULL
)
1447 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1457 need_sym_before (struct addsym_node
**node
, const char *sym
)
1460 struct addsym_node
*ptr
= add_sym_list
;
1462 /* 'othersym' symbols are at the front of the list. */
1463 for (count
= 0; count
< add_symbols
; count
++)
1467 else if (strcmp (ptr
->othersym
, sym
) == 0)
1469 free (ptr
->othersym
);
1470 ptr
->othersym
= ""; /* Empty name is hopefully never a valid symbol name. */
1480 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1482 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1484 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1485 sym
->value
= ptr
->symval
;
1486 sym
->flags
= ptr
->flags
;
1489 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1491 fatal (_("Section %s not found"), ptr
->section
);
1495 sym
->section
= bfd_abs_section_ptr
;
1499 /* Choose which symbol entries to copy; put the result in OSYMS.
1500 We don't copy in place, because that confuses the relocs.
1501 Return the number of symbols to print. */
1504 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1505 asymbol
**isyms
, long symcount
)
1507 asymbol
**from
= isyms
, **to
= osyms
;
1508 long src_count
= 0, dst_count
= 0;
1509 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1511 for (; src_count
< symcount
; src_count
++)
1513 asymbol
*sym
= from
[src_count
];
1514 flagword flags
= sym
->flags
;
1515 char *name
= (char *) bfd_asymbol_name (sym
);
1517 bfd_boolean used_in_reloc
= FALSE
;
1518 bfd_boolean undefined
;
1519 bfd_boolean rem_leading_char
;
1520 bfd_boolean add_leading_char
;
1522 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1526 struct addsym_node
*ptr
;
1528 if (need_sym_before (&ptr
, name
))
1529 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1532 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1536 new_name
= (char *) lookup_sym_redefinition (name
);
1537 if (new_name
== name
1538 && (flags
& BSF_SECTION_SYM
) != 0)
1539 new_name
= (char *) find_section_rename (name
, NULL
);
1540 bfd_set_asymbol_name (sym
, new_name
);
1544 /* Check if we will remove the current leading character. */
1546 (name
[0] == bfd_get_symbol_leading_char (abfd
))
1547 && (change_leading_char
1548 || (remove_leading_char
1549 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1551 || bfd_is_com_section (bfd_asymbol_section (sym
)))));
1553 /* Check if we will add a new leading character. */
1556 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1557 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1558 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1560 /* Short circuit for change_leading_char if we can do it in-place. */
1561 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1563 name
[0] = bfd_get_symbol_leading_char (obfd
);
1564 bfd_set_asymbol_name (sym
, name
);
1565 rem_leading_char
= FALSE
;
1566 add_leading_char
= FALSE
;
1569 /* Remove leading char. */
1570 if (rem_leading_char
)
1571 bfd_set_asymbol_name (sym
, ++name
);
1573 /* Add new leading char and/or prefix. */
1574 if (add_leading_char
|| prefix_symbols_string
)
1578 ptr
= n
= (char *) xmalloc (1 + strlen (prefix_symbols_string
)
1579 + strlen (name
) + 1);
1580 if (add_leading_char
)
1581 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1583 if (prefix_symbols_string
)
1585 strcpy (ptr
, prefix_symbols_string
);
1586 ptr
+= strlen (prefix_symbols_string
);
1590 bfd_set_asymbol_name (sym
, n
);
1594 if (strip_symbols
== STRIP_ALL
)
1596 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1597 || ((flags
& BSF_SECTION_SYM
) != 0
1598 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1602 used_in_reloc
= TRUE
;
1604 else if (relocatable
/* Relocatable file. */
1605 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1606 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1608 else if (bfd_decode_symclass (sym
) == 'I')
1609 /* Global symbols in $idata sections need to be retained
1610 even if relocatable is FALSE. External users of the
1611 library containing the $idata section may reference these
1614 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1615 || (flags
& BSF_WEAK
) != 0
1617 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1618 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1619 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1620 keep
= (strip_symbols
!= STRIP_DEBUG
1621 && strip_symbols
!= STRIP_UNNEEDED
1622 && ! convert_debugging
);
1623 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1624 /* COMDAT sections store special information in local
1625 symbols, so we cannot risk stripping any of them. */
1627 else /* Local symbol. */
1628 keep
= (strip_symbols
!= STRIP_UNNEEDED
1629 && (discard_locals
!= LOCALS_ALL
1630 && (discard_locals
!= LOCALS_START_L
1631 || ! bfd_is_local_label (abfd
, sym
))));
1633 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1635 /* There are multiple ways to set 'keep' above, but if it
1636 was the relocatable symbol case, then that's an error. */
1639 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1647 && !(flags
& BSF_KEEP
)
1648 && is_specified_symbol (name
, strip_unneeded_htab
))
1652 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1653 || is_specified_symbol (name
, keep_specific_htab
)))
1656 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1661 if ((flags
& BSF_GLOBAL
) != 0
1662 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1664 sym
->flags
&= ~ BSF_GLOBAL
;
1665 sym
->flags
|= BSF_WEAK
;
1669 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1670 && (is_specified_symbol (name
, localize_specific_htab
)
1671 || (htab_elements (keepglobal_specific_htab
) != 0
1672 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1673 || (localize_hidden
&& is_hidden_symbol (sym
))))
1675 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1676 sym
->flags
|= BSF_LOCAL
;
1680 && (flags
& BSF_LOCAL
)
1681 && is_specified_symbol (name
, globalize_specific_htab
))
1683 sym
->flags
&= ~ BSF_LOCAL
;
1684 sym
->flags
|= BSF_GLOBAL
;
1687 to
[dst_count
++] = sym
;
1692 struct addsym_node
*ptr
= add_sym_list
;
1694 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1698 if (strcmp (ptr
->othersym
, ""))
1699 fatal (_("'before=%s' not found"), ptr
->othersym
);
1702 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1708 to
[dst_count
] = NULL
;
1713 /* Find the redefined name of symbol SOURCE. */
1716 lookup_sym_redefinition (const char *source
)
1718 struct redefine_node key_node
= {(char *) source
, NULL
};
1719 struct redefine_node
*redef_node
1720 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1722 return redef_node
== NULL
? source
: redef_node
->target
;
1725 /* Insert a node into symbol redefine hash tabel. */
1728 add_redefine_and_check (const char *cause
, const char *source
,
1731 struct redefine_node
*new_node
1732 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1734 new_node
->source
= strdup (source
);
1735 new_node
->target
= strdup (target
);
1737 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1738 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1741 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1742 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1745 /* Insert the NEW_NODE into hash table for quick search. */
1746 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1748 /* Insert the target string into the reverse hash table, this is needed for
1749 duplicated target string check. */
1750 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1754 /* Handle the --redefine-syms option. Read lines containing "old new"
1755 from the file, and add them to the symbol redefine list. */
1758 add_redefine_syms_file (const char *filename
)
1767 file
= fopen (filename
, "r");
1769 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1770 filename
, strerror (errno
));
1773 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1781 /* Collect the input symbol name. */
1782 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1790 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1798 /* Eat white space between the symbol names. */
1799 while (IS_WHITESPACE (c
))
1801 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1806 /* Collect the output symbol name. */
1808 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1816 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1824 /* Eat white space at end of line. */
1825 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1830 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1831 || c
== '\n' || c
== EOF
)
1834 /* Append the redefinition to the list. */
1836 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1847 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1849 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1850 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1853 /* Eat the rest of the line and finish it. */
1854 while (c
!= '\n' && c
!= EOF
)
1860 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1866 /* Copy unknown object file IBFD onto OBFD.
1867 Returns TRUE upon success, FALSE otherwise. */
1870 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1878 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1880 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1887 non_fatal (_("stat returns negative size for `%s'"),
1888 bfd_get_archive_filename (ibfd
));
1892 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1894 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1899 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1900 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1902 cbuf
= (char *) xmalloc (BUFSIZE
);
1904 while (ncopied
< size
)
1906 tocopy
= size
- ncopied
;
1907 if (tocopy
> BUFSIZE
)
1910 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1911 != (bfd_size_type
) tocopy
)
1913 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1918 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1919 != (bfd_size_type
) tocopy
)
1921 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1929 /* We should at least to be able to read it back when copying an
1930 unknown object in an archive. */
1931 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1936 typedef struct objcopy_internal_note
1938 Elf_Internal_Note note
;
1939 unsigned long padded_namesz
;
1942 } objcopy_internal_note
;
1944 #define DEBUG_MERGE 0
1947 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1949 #define merge_debug(format, ...)
1952 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
1955 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
1956 objcopy_internal_note
* pnote2
)
1958 if (pnote1
->end
< pnote2
->start
)
1959 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1960 Really we should extract the alignment of the section
1961 covered by the notes. */
1962 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1964 if (pnote2
->end
< pnote2
->start
)
1965 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
1967 if (pnote1
->end
< pnote2
->end
)
1970 if (pnote2
->end
< pnote1
->end
)
1976 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
1979 contained_by (objcopy_internal_note
* needle
,
1980 objcopy_internal_note
* haystack
)
1982 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
1986 is_open_note (objcopy_internal_note
* pnote
)
1988 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
1992 is_func_note (objcopy_internal_note
* pnote
)
1994 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
1998 is_deleted_note (objcopy_internal_note
* pnote
)
2000 return pnote
->note
.type
== 0;
2004 is_version_note (objcopy_internal_note
* pnote
)
2006 return (pnote
->note
.namesz
> 4
2007 && pnote
->note
.namedata
[0] == 'G'
2008 && pnote
->note
.namedata
[1] == 'A'
2009 && pnote
->note
.namedata
[2] == '$'
2010 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2014 is_64bit (bfd
* abfd
)
2016 /* Should never happen, but let's be paranoid. */
2017 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2020 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2023 /* This sorting function is used to get the notes into an order
2024 that makes merging easy. */
2027 compare_gnu_build_notes (const void * data1
, const void * data2
)
2029 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2030 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2032 /* Sort notes based upon the attribute they record. */
2033 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2034 pnote2
->note
.namedata
+ 3,
2035 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2036 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2040 if (pnote1
->end
< pnote2
->start
)
2042 if (pnote1
->start
> pnote2
->end
)
2045 /* Overlaps - we should merge the two ranges. */
2046 if (pnote1
->start
< pnote2
->start
)
2048 if (pnote1
->end
> pnote2
->end
)
2051 /* Put OPEN notes before function notes. */
2052 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2054 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2060 /* This sorting function is used to get the notes into an order
2061 that makes eliminating address ranges easier. */
2064 sort_gnu_build_notes (const void * data1
, const void * data2
)
2066 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2067 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2069 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2071 /* Move deleted notes to the end. */
2072 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2075 /* Move OPEN notes to the start. */
2076 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2079 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2082 return 1; /* 1: F 2: O */
2085 /* Sort by starting address. */
2086 if (pnote1
->start
< pnote2
->start
)
2088 if (pnote1
->start
> pnote2
->start
)
2091 /* Then by end address (bigger range first). */
2092 if (pnote1
->end
> pnote2
->end
)
2094 if (pnote1
->end
< pnote2
->end
)
2097 /* Then by attribute type. */
2098 if (pnote1
->note
.namesz
> 4
2099 && pnote2
->note
.namesz
> 4
2100 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2101 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2106 /* Merge the notes on SEC, removing redundant entries.
2107 Returns the new, smaller size of the section upon success. */
2109 static bfd_size_type
2110 merge_gnu_build_notes (bfd
* abfd
,
2113 bfd_byte
* contents
)
2115 objcopy_internal_note
* pnotes_end
;
2116 objcopy_internal_note
* pnotes
= NULL
;
2117 objcopy_internal_note
* pnote
;
2118 bfd_size_type remain
= size
;
2119 unsigned version_1_seen
= 0;
2120 unsigned version_2_seen
= 0;
2121 unsigned version_3_seen
= 0;
2122 const char * err
= NULL
;
2123 bfd_byte
* in
= contents
;
2124 unsigned long previous_func_start
= 0;
2125 unsigned long previous_open_start
= 0;
2126 unsigned long previous_func_end
= 0;
2127 unsigned long previous_open_end
= 0;
2130 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2136 /* If there are relocs associated with this section then we
2137 cannot safely merge it. */
2138 relpp
= (arelent
**) xmalloc (relsize
);
2139 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2144 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2145 bfd_get_filename (abfd
), bfd_section_name (sec
));
2150 /* Make a copy of the notes and convert to our internal format.
2151 Minimum size of a note is 12 bytes. Also locate the version
2152 notes and check them. */
2153 pnote
= pnotes
= (objcopy_internal_note
*)
2154 xcalloc ((size
/ 12), sizeof (* pnote
));
2155 while (remain
>= 12)
2159 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2160 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2161 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2162 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2164 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2166 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2170 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2171 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2173 err
= _("corrupt GNU build attribute note: wrong note type");
2177 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2179 err
= _("corrupt GNU build attribute note: note too big");
2183 if (pnote
->note
.namesz
< 2)
2185 err
= _("corrupt GNU build attribute note: name too small");
2189 pnote
->note
.namedata
= (char *)(in
+ 12);
2190 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2192 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2193 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2195 if (pnote
->note
.namesz
> 2
2196 && pnote
->note
.namedata
[0] == '$'
2197 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2198 && pnote
->note
.namedata
[2] == '1')
2200 else if (is_version_note (pnote
))
2202 if (pnote
->note
.namedata
[4] == '2')
2204 else if (pnote
->note
.namedata
[4] == '3')
2208 err
= _("corrupt GNU build attribute note: unsupported version");
2213 switch (pnote
->note
.descsz
)
2220 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2221 /* FIXME: For version 1 and 2 notes we should try to
2222 calculate the end address by finding a symbol whose
2223 value is START, and then adding in its size.
2225 For now though, since v1 and v2 was not intended to
2226 handle gaps, we chose an artificially large end
2232 if (! is_64bit (abfd
))
2234 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2235 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2239 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2240 /* FIXME: For version 1 and 2 notes we should try to
2241 calculate the end address by finding a symbol whose
2242 value is START, and then adding in its size.
2244 For now though, since v1 and v2 was not intended to
2245 handle gaps, we chose an artificially large end
2252 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2253 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2257 err
= _("corrupt GNU build attribute note: bad description size");
2261 if (is_open_note (pnote
))
2264 previous_open_start
= start
;
2266 pnote
->start
= previous_open_start
;
2269 previous_open_end
= end
;
2271 pnote
->end
= previous_open_end
;
2276 previous_func_start
= start
;
2278 pnote
->start
= previous_func_start
;
2281 previous_func_end
= end
;
2283 pnote
->end
= previous_func_end
;
2286 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2288 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2297 /* Check that the notes are valid. */
2300 err
= _("corrupt GNU build attribute notes: excess data at end");
2304 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2307 err
= _("bad GNU build attribute notes: no known versions detected");
2310 /* This happens with glibc. No idea why. */
2311 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2312 bfd_get_filename (abfd
), bfd_section_name (sec
));
2317 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2318 || (version_1_seen
> 0 && version_3_seen
> 0)
2319 || (version_2_seen
> 0 && version_3_seen
> 0))
2321 err
= _("bad GNU build attribute notes: multiple different versions");
2325 /* We are now only supporting the merging v3+ notes
2326 - it makes things much simpler. */
2327 if (version_3_seen
== 0)
2329 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2333 merge_debug ("Merging section %s which contains %ld notes\n",
2334 sec
->name
, pnotes_end
- pnotes
);
2336 /* Sort the notes. */
2337 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2338 compare_gnu_build_notes
);
2341 merge_debug ("Results of initial sort:\n");
2342 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2343 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2344 (pnote
->note
.namedata
- (char *) contents
) - 12,
2345 pnote
->start
, pnote
->end
,
2347 pnote
->note
.namedata
[3],
2352 /* Now merge the notes. The rules are:
2353 1. If a note has a zero range, it can be eliminated.
2354 2. If two notes have the same namedata then:
2355 2a. If one note's range is fully covered by the other note
2356 then it can be deleted.
2357 2b. If one note's range partially overlaps or adjoins the
2358 other note then if they are both of the same type (open
2359 or func) then they can be merged and one deleted. If
2360 they are of different types then they cannot be merged. */
2361 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2363 /* Skip already deleted notes.
2364 FIXME: Can this happen ? We are scanning forwards and
2365 deleting backwards after all. */
2366 if (is_deleted_note (pnote
))
2369 /* Rule 1 - delete 0-range notes. */
2370 if (pnote
->start
== pnote
->end
)
2372 merge_debug ("Delete note at offset %#08lx - empty range\n",
2373 (pnote
->note
.namedata
- (char *) contents
) - 12);
2374 pnote
->note
.type
= 0;
2379 objcopy_internal_note
* back
;
2381 /* Rule 2: Check to see if there is an identical previous note. */
2382 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2384 if (is_deleted_note (back
))
2387 /* Our sorting function should have placed all identically
2388 attributed notes together, so if we see a note of a different
2389 attribute type stop searching. */
2390 if (back
->note
.namesz
!= pnote
->note
.namesz
2391 || memcmp (back
->note
.namedata
,
2392 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2395 if (back
->start
== pnote
->start
2396 && back
->end
== pnote
->end
)
2398 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2399 (pnote
->note
.namedata
- (char *) contents
) - 12,
2400 (back
->note
.namedata
- (char *) contents
) - 12);
2401 pnote
->note
.type
= 0;
2406 if (contained_by (pnote
, back
))
2408 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2409 (pnote
->note
.namedata
- (char *) contents
) - 12,
2410 (back
->note
.namedata
- (char *) contents
) - 12);
2411 pnote
->note
.type
= 0;
2416 /* This should not happen as we have sorted the
2417 notes with earlier starting addresses first. */
2418 if (contained_by (back
, pnote
))
2419 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2423 if (overlaps_or_adjoins (back
, pnote
)
2424 && is_func_note (back
) == is_func_note (pnote
))
2426 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2427 (pnote
->note
.namedata
- (char *) contents
) - 12,
2428 (back
->note
.namedata
- (char *) contents
) - 12);
2430 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2431 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2432 pnote
->note
.type
= 0;
2436 /* Don't scan too far back however. */
2439 /* FIXME: Not sure if this can ever be triggered. */
2440 merge_debug ("ITERATION LIMIT REACHED\n");
2445 if (! is_deleted_note (pnote
))
2446 merge_debug ("Unable to do anything with note at %#08lx\n",
2447 (pnote
->note
.namedata
- (char *) contents
) - 12);
2451 /* Resort the notes. */
2452 merge_debug ("Final sorting of notes\n");
2453 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2455 /* Reconstruct the ELF notes. */
2456 bfd_byte
* new_contents
;
2459 bfd_size_type new_size
;
2460 bfd_vma prev_start
= 0;
2461 bfd_vma prev_end
= 0;
2463 new = new_contents
= xmalloc (size
);
2464 for (pnote
= pnotes
, old
= contents
;
2468 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2470 if (! is_deleted_note (pnote
))
2472 /* Create the note, potentially using the
2473 address range of the previous note. */
2474 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2476 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2477 bfd_put_32 (abfd
, 0, new + 4);
2478 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2480 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2481 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2482 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2483 new += pnote
->padded_namesz
;
2487 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2488 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2489 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2491 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2492 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2493 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2494 new += pnote
->padded_namesz
;
2495 if (is_64bit (abfd
))
2497 bfd_put_64 (abfd
, pnote
->start
, new);
2498 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2503 bfd_put_32 (abfd
, pnote
->start
, new);
2504 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2508 prev_start
= pnote
->start
;
2509 prev_end
= pnote
->end
;
2517 merge_debug ("Results of merge:\n");
2518 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2519 if (! is_deleted_note (pnote
))
2520 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2521 (pnote
->note
.namedata
- (char *) contents
) - 12,
2522 pnote
->start
, pnote
->end
,
2524 pnote
->note
.namedata
[3],
2529 new_size
= new - new_contents
;
2530 memcpy (contents
, new_contents
, new_size
);
2532 free (new_contents
);
2537 bfd_set_error (bfd_error_bad_value
);
2538 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2546 /* Copy object file IBFD onto OBFD.
2547 Returns TRUE upon success, FALSE otherwise. */
2550 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2554 asection
**osections
= NULL
;
2556 asection
*gnu_debuglink_section
= NULL
;
2557 bfd_size_type
*gaps
= NULL
;
2558 bfd_size_type max_gap
= 0;
2561 enum bfd_architecture iarch
;
2565 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2566 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2567 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2569 /* PR 17636: Call non-fatal so that we return to our parent who
2570 may need to tidy temporary files. */
2571 non_fatal (_("Unable to change endianness of input file(s)"));
2575 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2577 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2581 if (ibfd
->sections
== NULL
)
2583 non_fatal (_("error: the input file '%s' has no sections"),
2584 bfd_get_archive_filename (ibfd
));
2588 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2590 if ((do_debug_sections
& compress
) != 0
2591 && do_debug_sections
!= compress
)
2593 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2594 bfd_get_archive_filename (ibfd
));
2598 if (do_elf_stt_common
)
2600 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2601 bfd_get_archive_filename (ibfd
));
2607 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2608 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2609 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2618 start
= bfd_get_start_address (ibfd
);
2619 start
+= change_start
;
2622 /* Neither the start address nor the flags
2623 need to be set for a core file. */
2624 if (bfd_get_format (obfd
) != bfd_core
)
2628 flags
= bfd_get_file_flags (ibfd
);
2629 flags
|= bfd_flags_to_set
;
2630 flags
&= ~bfd_flags_to_clear
;
2631 flags
&= bfd_applicable_file_flags (obfd
);
2633 if (strip_symbols
== STRIP_ALL
)
2634 flags
&= ~HAS_RELOC
;
2636 if (!bfd_set_start_address (obfd
, start
)
2637 || !bfd_set_file_flags (obfd
, flags
))
2639 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2644 /* Copy architecture of input file to output file. */
2645 iarch
= bfd_get_arch (ibfd
);
2646 imach
= bfd_get_mach (ibfd
);
2649 if (bfd_get_arch_info (ibfd
) == NULL
2650 || bfd_get_arch_info (ibfd
)->arch
== bfd_arch_unknown
)
2652 iarch
= input_arch
->arch
;
2653 imach
= input_arch
->mach
;
2656 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2657 bfd_get_archive_filename (ibfd
));
2659 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2660 && (ibfd
->target_defaulted
2661 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2663 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2664 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2665 bfd_get_archive_filename (ibfd
));
2667 non_fatal (_("Output file cannot represent architecture `%s'"),
2668 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2669 bfd_get_mach (ibfd
)));
2673 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2675 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2679 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2680 && bfd_pei_p (obfd
))
2682 /* Set up PE parameters. */
2683 pe_data_type
*pe
= pe_data (obfd
);
2685 /* Copy PE parameters before changing them. */
2686 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2687 && bfd_pei_p (ibfd
))
2688 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2690 if (pe_file_alignment
!= (bfd_vma
) -1)
2691 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2693 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2695 if (pe_heap_commit
!= (bfd_vma
) -1)
2696 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2698 if (pe_heap_reserve
!= (bfd_vma
) -1)
2699 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2701 if (pe_image_base
!= (bfd_vma
) -1)
2702 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2704 if (pe_section_alignment
!= (bfd_vma
) -1)
2705 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2707 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2709 if (pe_stack_commit
!= (bfd_vma
) -1)
2710 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2712 if (pe_stack_reserve
!= (bfd_vma
) -1)
2713 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2715 if (pe_subsystem
!= -1)
2716 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2718 if (pe_major_subsystem_version
!= -1)
2719 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2721 if (pe_minor_subsystem_version
!= -1)
2722 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2724 if (pe_file_alignment
> pe_section_alignment
)
2726 char file_alignment
[20], section_alignment
[20];
2728 sprintf_vma (file_alignment
, pe_file_alignment
);
2729 sprintf_vma (section_alignment
, pe_section_alignment
);
2730 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2732 file_alignment
, section_alignment
);
2739 if (osympp
!= isympp
)
2745 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2748 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2752 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2753 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2756 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2759 /* PR 17512: file: d6323821
2760 If the symbol table could not be loaded do not pretend that we have
2761 any symbols. This trips us up later on when we load the relocs. */
2765 osympp
= isympp
= NULL
;
2768 /* BFD mandates that all output sections be created and sizes set before
2769 any output is done. Thus, we traverse all sections multiple times. */
2770 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2772 if (!extract_symbol
)
2773 setup_bfd_headers (ibfd
, obfd
);
2775 if (add_sections
!= NULL
)
2777 struct section_add
*padd
;
2778 struct section_list
*pset
;
2780 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2784 pset
= find_section_list (padd
->name
, FALSE
,
2785 SECTION_CONTEXT_SET_FLAGS
);
2787 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2789 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2791 /* bfd_make_section_with_flags() does not return very helpful
2792 error codes, so check for the most likely user error first. */
2793 if (bfd_get_section_by_name (obfd
, padd
->name
))
2795 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2796 _("can't add section '%s'"), padd
->name
);
2801 /* We use LINKER_CREATED here so that the backend hooks
2802 will create any special section type information,
2803 instead of presuming we know what we're doing merely
2804 because we set the flags. */
2805 padd
->section
= bfd_make_section_with_flags
2806 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2807 if (padd
->section
== NULL
)
2809 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2810 _("can't create section `%s'"),
2816 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2818 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2822 pset
= find_section_list (padd
->name
, FALSE
,
2823 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2825 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2827 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2831 pset
= find_section_list (padd
->name
, FALSE
,
2832 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2835 padd
->section
->lma
= pset
->lma_val
;
2837 if (!bfd_set_section_alignment
2838 (padd
->section
, bfd_section_alignment (padd
->section
)))
2840 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2847 if (update_sections
!= NULL
)
2849 struct section_add
*pupdate
;
2851 for (pupdate
= update_sections
;
2853 pupdate
= pupdate
->next
)
2855 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2856 if (pupdate
->section
== NULL
)
2858 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2862 osec
= pupdate
->section
->output_section
;
2863 if (!bfd_set_section_size (osec
, pupdate
->size
))
2865 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2871 merged_note_section
* merged_note_sections
= NULL
;
2874 /* This palaver is necessary because we must set the output
2875 section size first, before its contents are ready. */
2876 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2878 if (! is_mergeable_note_section (ibfd
, osec
))
2881 /* If the section is going to be completly deleted then
2882 do not bother to merge it. */
2883 if (osec
->output_section
== NULL
)
2886 bfd_size_type size
= bfd_section_size (osec
);
2890 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2891 _("warning: note section is empty"));
2895 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2896 merged
->contents
= NULL
;
2897 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2899 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2900 _("warning: could not load note section"));
2905 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2908 /* FIXME: Once we have read the contents in, we must write
2909 them out again. So even if the mergeing has achieved
2910 nothing we still add this entry to the merge list. */
2912 if (size
!= merged
->size
2913 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2915 bfd_nonfatal_message (NULL
, obfd
, osec
,
2916 _("warning: failed to set merged notes size"));
2917 free (merged
->contents
);
2922 /* Add section to list of merged sections. */
2924 merged
->next
= merged_note_sections
;
2925 merged_note_sections
= merged
;
2929 if (dump_sections
!= NULL
)
2931 struct section_add
* pdump
;
2933 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2935 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
2938 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
2939 _("can't dump section '%s' - it does not exist"),
2944 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
2946 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2947 _("can't dump section - it has no contents"));
2951 bfd_size_type size
= bfd_section_size (osec
);
2954 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2955 _("can't dump section - it is empty"));
2960 f
= fopen (pdump
->filename
, FOPEN_WB
);
2963 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
2964 _("could not open section dump file"));
2969 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
2971 if (fwrite (contents
, 1, size
, f
) != size
)
2973 non_fatal (_("error writing section contents to %s (error: %s)"),
2982 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2983 _("could not retrieve section contents"));
2990 if (gnu_debuglink_filename
!= NULL
)
2992 /* PR 15125: Give a helpful warning message if
2993 the debuglink section already exists, and
2994 allow the rest of the copy to complete. */
2995 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
2997 non_fatal (_("%s: debuglink section already exists"),
2998 bfd_get_filename (obfd
));
2999 gnu_debuglink_filename
= NULL
;
3003 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3004 (obfd
, gnu_debuglink_filename
);
3006 if (gnu_debuglink_section
== NULL
)
3008 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3009 _("cannot create debug link section `%s'"),
3010 gnu_debuglink_filename
);
3014 /* Special processing for PE format files. We
3015 have no way to distinguish PE from COFF here. */
3016 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3018 bfd_vma debuglink_vma
;
3019 asection
* highest_section
;
3021 /* The PE spec requires that all sections be adjacent and sorted
3022 in ascending order of VMA. It also specifies that debug
3023 sections should be last. This is despite the fact that debug
3024 sections are not loaded into memory and so in theory have no
3027 This means that the debuglink section must be given a non-zero
3028 VMA which makes it contiguous with other debug sections. So
3029 walk the current section list, find the section with the
3030 highest VMA and start the debuglink section after that one. */
3031 for (osec
= obfd
->sections
, highest_section
= NULL
;
3035 && (highest_section
== NULL
3036 || osec
->vma
> highest_section
->vma
))
3037 highest_section
= osec
;
3039 if (highest_section
)
3040 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3041 + highest_section
->size
,
3042 /* FIXME: We ought to be using
3043 COFF_PAGE_SIZE here or maybe
3044 bfd_section_alignment() (if it
3045 was set) but since this is for PE
3046 and we know the required alignment
3047 it is easier just to hard code it. */
3050 /* Umm, not sure what to do in this case. */
3051 debuglink_vma
= 0x1000;
3053 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3058 c
= bfd_count_sections (obfd
);
3060 && (gap_fill_set
|| pad_to_set
))
3064 /* We must fill in gaps between the sections and/or we must pad
3065 the last section to a specified address. We do this by
3066 grabbing a list of the sections, sorting them by VMA, and
3067 increasing the section sizes as required to fill the gaps.
3068 We write out the gap contents below. */
3070 osections
= (asection
**) xmalloc (c
* sizeof (asection
*));
3072 bfd_map_over_sections (obfd
, get_sections
, &set
);
3074 qsort (osections
, c
, sizeof (asection
*), compare_section_lma
);
3076 gaps
= (bfd_size_type
*) xmalloc (c
* sizeof (bfd_size_type
));
3077 memset (gaps
, 0, c
* sizeof (bfd_size_type
));
3081 for (i
= 0; i
< c
- 1; i
++)
3085 bfd_vma gap_start
, gap_stop
;
3087 flags
= bfd_section_flags (osections
[i
]);
3088 if ((flags
& SEC_HAS_CONTENTS
) == 0
3089 || (flags
& SEC_LOAD
) == 0)
3092 size
= bfd_section_size (osections
[i
]);
3093 gap_start
= bfd_section_lma (osections
[i
]) + size
;
3094 gap_stop
= bfd_section_lma (osections
[i
+ 1]);
3095 if (gap_start
< gap_stop
)
3097 if (!bfd_set_section_size (osections
[i
],
3098 size
+ (gap_stop
- gap_start
)))
3100 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3101 _("Can't fill gap after section"));
3105 gaps
[i
] = gap_stop
- gap_start
;
3106 if (max_gap
< gap_stop
- gap_start
)
3107 max_gap
= gap_stop
- gap_start
;
3117 lma
= bfd_section_lma (osections
[c
- 1]);
3118 size
= bfd_section_size (osections
[c
- 1]);
3119 if (lma
+ size
< pad_to
)
3121 if (!bfd_set_section_size (osections
[c
- 1], pad_to
- lma
))
3123 bfd_nonfatal_message (NULL
, obfd
, osections
[c
- 1],
3124 _("can't add padding"));
3129 gaps
[c
- 1] = pad_to
- (lma
+ size
);
3130 if (max_gap
< pad_to
- (lma
+ size
))
3131 max_gap
= pad_to
- (lma
+ size
);
3137 /* Symbol filtering must happen after the output sections
3138 have been created, but before their contents are set. */
3140 if (convert_debugging
)
3141 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, FALSE
);
3143 if (strip_symbols
== STRIP_DEBUG
3144 || strip_symbols
== STRIP_ALL
3145 || strip_symbols
== STRIP_UNNEEDED
3146 || strip_symbols
== STRIP_NONDEBUG
3147 || strip_symbols
== STRIP_DWO
3148 || strip_symbols
== STRIP_NONDWO
3149 || discard_locals
!= LOCALS_UNDEF
3151 || htab_elements (strip_specific_htab
) != 0
3152 || htab_elements (keep_specific_htab
) != 0
3153 || htab_elements (localize_specific_htab
) != 0
3154 || htab_elements (globalize_specific_htab
) != 0
3155 || htab_elements (keepglobal_specific_htab
) != 0
3156 || htab_elements (weaken_specific_htab
) != 0
3157 || htab_elements (redefine_specific_htab
) != 0
3158 || prefix_symbols_string
3161 || convert_debugging
3162 || change_leading_char
3163 || remove_leading_char
3164 || section_rename_list
3168 /* Mark symbols used in output relocations so that they
3169 are kept, even if they are local labels or static symbols.
3171 Note we iterate over the input sections examining their
3172 relocations since the relocations for the output sections
3173 haven't been set yet. mark_symbols_used_in_relocations will
3174 ignore input sections which have no corresponding output
3176 if (strip_symbols
!= STRIP_ALL
)
3178 bfd_set_error (bfd_error_no_error
);
3179 bfd_map_over_sections (ibfd
,
3180 mark_symbols_used_in_relocations
,
3182 if (bfd_get_error () != bfd_error_no_error
)
3189 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3190 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3193 if (convert_debugging
&& dhandle
!= NULL
)
3197 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3200 dhandle
= NULL
; /* Paranoia... */
3209 bfd_set_symtab (obfd
, osympp
, symcount
);
3211 /* This has to happen before section positions are set. */
3212 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3214 /* This has to happen after the symbol table has been set. */
3215 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3217 if (add_sections
!= NULL
)
3219 struct section_add
*padd
;
3221 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3223 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3226 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3232 if (update_sections
!= NULL
)
3234 struct section_add
*pupdate
;
3236 for (pupdate
= update_sections
;
3238 pupdate
= pupdate
->next
)
3240 osec
= pupdate
->section
->output_section
;
3241 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3244 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3250 if (merged_note_sections
!= NULL
)
3252 merged_note_section
* merged
= NULL
;
3254 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3256 if (! is_mergeable_note_section (obfd
, osec
))
3260 merged
= merged_note_sections
;
3262 /* It is likely that output sections are in the same order
3263 as the input sections, but do not assume that this is
3265 if (strcmp (bfd_section_name (merged
->sec
),
3266 bfd_section_name (osec
)) != 0)
3268 for (merged
= merged_note_sections
;
3270 merged
= merged
->next
)
3271 if (strcmp (bfd_section_name (merged
->sec
),
3272 bfd_section_name (osec
)) == 0)
3277 bfd_nonfatal_message
3279 _("error: failed to locate merged notes"));
3284 if (merged
->contents
== NULL
)
3286 bfd_nonfatal_message
3288 _("error: failed to merge notes"));
3292 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3295 bfd_nonfatal_message
3297 _("error: failed to copy merged notes into output"));
3301 merged
= merged
->next
;
3304 /* Free the memory. */
3305 merged_note_section
* next
;
3306 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3308 next
= merged
->next
;
3309 free (merged
->contents
);
3313 else if (merge_notes
&& ! is_strip
)
3314 non_fatal (_("%s: Could not find any mergeable note sections"),
3315 bfd_get_filename (ibfd
));
3317 if (gnu_debuglink_filename
!= NULL
)
3319 if (! bfd_fill_in_gnu_debuglink_section
3320 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3322 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3323 _("cannot fill debug link section `%s'"),
3324 gnu_debuglink_filename
);
3329 if (gap_fill_set
|| pad_to_set
)
3333 /* Fill in the gaps. */
3336 buf
= (bfd_byte
*) xmalloc (max_gap
);
3337 memset (buf
, gap_fill
, max_gap
);
3339 c
= bfd_count_sections (obfd
);
3340 for (i
= 0; i
< c
; i
++)
3348 off
= bfd_section_size (osections
[i
]) - left
;
3359 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3362 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3378 /* Allow the BFD backend to copy any private data it understands
3379 from the input BFD to the output BFD. This is done last to
3380 permit the routine to look at the filtered symbol table, which is
3381 important for the ECOFF code at least. */
3382 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3384 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3385 _("error copying private BFD data"));
3389 /* Switch to the alternate machine code. We have to do this at the
3390 very end, because we only initialize the header when we create
3391 the first section. */
3392 if (use_alt_mach_code
!= 0)
3394 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3396 non_fatal (_("this target does not support %lu alternative machine codes"),
3398 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3400 non_fatal (_("treating that number as an absolute e_machine value instead"));
3401 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3404 non_fatal (_("ignoring the alternative value"));
3411 /* Read each archive element in turn from IBFD, copy the
3412 contents to temp file, and keep the temp file handle.
3413 If 'force_output_target' is TRUE then make sure that
3414 all elements in the new archive are of the type
3418 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3419 bfd_boolean force_output_target
,
3420 const bfd_arch_info_type
*input_arch
)
3424 struct name_list
*next
;
3428 bfd
**ptr
= &obfd
->archive_head
;
3431 const char *filename
;
3433 /* PR 24281: It is not clear what should happen when copying a thin archive.
3434 One part is straight forward - if the output archive is in a different
3435 directory from the input archive then any relative paths in the library
3436 should be adjusted to the new location. But if any transformation
3437 options are active (eg strip, rename, add, etc) then the implication is
3438 that these should be applied to the files pointed to by the archive.
3439 But since objcopy is not destructive, this means that new files must be
3440 created, and there is no guidance for the names of the new files. (Plus
3441 this conflicts with one of the goals of thin libraries - only taking up
3442 a minimal amount of space in the file system).
3444 So for now we fail if an attempt is made to copy such libraries. */
3445 if (ibfd
->is_thin_archive
)
3448 bfd_set_error (bfd_error_invalid_operation
);
3449 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3450 _("sorry: copying thin archives is not currently supported"));
3454 /* Make a temp directory to hold the contents. */
3455 dir
= make_tempdir (bfd_get_filename (obfd
));
3457 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3460 if (strip_symbols
== STRIP_ALL
)
3461 obfd
->has_armap
= FALSE
;
3463 obfd
->has_armap
= ibfd
->has_armap
;
3464 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3467 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3471 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3473 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3476 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3477 goto cleanup_and_exit
;
3480 while (!status
&& this_element
!= NULL
)
3486 int stat_status
= 0;
3487 bfd_boolean del
= TRUE
;
3488 bfd_boolean ok_object
;
3490 /* PR binutils/17533: Do not allow directory traversal
3491 outside of the current directory tree by archive members. */
3492 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3494 non_fatal (_("illegal pathname found in archive member: %s"),
3495 bfd_get_filename (this_element
));
3497 goto cleanup_and_exit
;
3500 /* Create an output file for this member. */
3501 output_name
= concat (dir
, "/",
3502 bfd_get_filename (this_element
), (char *) 0);
3504 /* If the file already exists, make another temp dir. */
3505 if (stat (output_name
, &buf
) >= 0)
3507 char * tmpdir
= make_tempdir (output_name
);
3512 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3515 goto cleanup_and_exit
;
3518 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3523 output_name
= concat (tmpdir
, "/",
3524 bfd_get_filename (this_element
), (char *) 0);
3529 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3531 if (stat_status
!= 0)
3532 non_fatal (_("internal stat error on %s"),
3533 bfd_get_filename (this_element
));
3536 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3537 l
->name
= output_name
;
3542 ok_object
= bfd_check_format (this_element
, bfd_object
);
3544 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3545 _("Unable to recognise the format of file"));
3547 /* PR binutils/3110: Cope with archives
3548 containing multiple target types. */
3549 if (force_output_target
|| !ok_object
)
3550 output_bfd
= bfd_openw (output_name
, output_target
);
3552 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3554 if (output_bfd
== NULL
)
3556 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3558 goto cleanup_and_exit
;
3563 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3565 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3566 /* Try again as an unknown object file. */
3568 else if (!bfd_close (output_bfd
))
3570 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3571 /* Error in new object file. Don't change archive. */
3578 del
= !copy_unknown_object (this_element
, output_bfd
);
3579 if (!bfd_close_all_done (output_bfd
))
3581 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3582 /* Error in new object file. Don't change archive. */
3589 unlink (output_name
);
3594 if (preserve_dates
&& stat_status
== 0)
3595 set_times (output_name
, &buf
);
3597 /* Open the newly output file and attach to our list. */
3598 output_bfd
= bfd_openr (output_name
, output_target
);
3600 l
->obfd
= output_bfd
;
3603 ptr
= &output_bfd
->archive_next
;
3605 last_element
= this_element
;
3607 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3609 bfd_close (last_element
);
3614 filename
= bfd_get_filename (obfd
);
3615 if (!bfd_close (obfd
))
3618 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3621 filename
= bfd_get_filename (ibfd
);
3622 if (!bfd_close (ibfd
))
3625 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3629 /* Delete all the files that we opened. */
3631 struct name_list
* next
;
3633 for (l
= list
; l
!= NULL
; l
= next
)
3635 if (l
->obfd
== NULL
)
3639 bfd_close (l
->obfd
);
3651 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3653 /* This is only relevant to Coff targets. */
3654 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3657 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3658 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3659 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3663 /* The top-level control. */
3666 copy_file (const char *input_filename
, const char *output_filename
,
3667 const char *input_target
, const char *output_target
,
3668 const bfd_arch_info_type
*input_arch
)
3671 char **obj_matching
;
3672 char **core_matching
;
3673 off_t size
= get_file_size (input_filename
);
3678 non_fatal (_("error: the input file '%s' is empty"),
3684 /* To allow us to do "strip *" without dying on the first
3685 non-object file, failures are nonfatal. */
3686 ibfd
= bfd_openr (input_filename
, input_target
);
3689 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3694 switch (do_debug_sections
)
3698 case compress_gnu_zlib
:
3699 case compress_gabi_zlib
:
3700 ibfd
->flags
|= BFD_COMPRESS
;
3701 /* Don't check if input is ELF here since this information is
3702 only available after bfd_check_format_matches is called. */
3703 if (do_debug_sections
!= compress_gnu_zlib
)
3704 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3707 ibfd
->flags
|= BFD_DECOMPRESS
;
3713 switch (do_elf_stt_common
)
3715 case elf_stt_common
:
3716 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3719 case no_elf_stt_common
:
3720 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3726 if (bfd_check_format (ibfd
, bfd_archive
))
3728 bfd_boolean force_output_target
;
3731 /* bfd_get_target does not return the correct value until
3732 bfd_check_format succeeds. */
3733 if (output_target
== NULL
)
3735 output_target
= bfd_get_target (ibfd
);
3736 force_output_target
= FALSE
;
3739 force_output_target
= TRUE
;
3741 obfd
= bfd_openw (output_filename
, output_target
);
3744 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3748 /* This is a no-op on non-Coff targets. */
3749 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3751 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3753 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3758 /* bfd_get_target does not return the correct value until
3759 bfd_check_format succeeds. */
3760 if (output_target
== NULL
)
3761 output_target
= bfd_get_target (ibfd
);
3763 obfd
= bfd_openw (output_filename
, output_target
);
3766 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3770 /* This is a no-op on non-Coff targets. */
3771 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3773 if (! copy_object (ibfd
, obfd
, input_arch
))
3776 /* PR 17512: file: 0f15796a.
3777 If the file could not be copied it may not be in a writeable
3778 state. So use bfd_close_all_done to avoid the possibility of
3779 writing uninitialised data into the file. */
3780 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3783 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3787 if (!bfd_close (ibfd
))
3790 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3796 bfd_error_type obj_error
= bfd_get_error ();
3797 bfd_error_type core_error
;
3799 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3801 /* This probably can't happen.. */
3802 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3803 free (obj_matching
);
3807 core_error
= bfd_get_error ();
3808 /* Report the object error in preference to the core error. */
3809 if (obj_error
!= core_error
)
3810 bfd_set_error (obj_error
);
3812 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3814 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3816 list_matching_formats (obj_matching
);
3817 free (obj_matching
);
3819 if (core_error
== bfd_error_file_ambiguously_recognized
)
3821 list_matching_formats (core_matching
);
3822 free (core_matching
);
3829 /* Add a name to the section renaming list. */
3832 add_section_rename (const char * old_name
, const char * new_name
,
3835 section_rename
* srename
;
3837 /* Check for conflicts first. */
3838 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3839 if (strcmp (srename
->old_name
, old_name
) == 0)
3841 /* Silently ignore duplicate definitions. */
3842 if (strcmp (srename
->new_name
, new_name
) == 0
3843 && srename
->flags
== flags
)
3846 fatal (_("Multiple renames of section %s"), old_name
);
3849 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3851 srename
->old_name
= old_name
;
3852 srename
->new_name
= new_name
;
3853 srename
->flags
= flags
;
3854 srename
->next
= section_rename_list
;
3856 section_rename_list
= srename
;
3859 /* Check the section rename list for a new name of the input section
3860 called OLD_NAME. Returns the new name if one is found and sets
3861 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3864 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3866 const section_rename
*srename
;
3868 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3869 if (strcmp (srename
->old_name
, old_name
) == 0)
3871 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3872 *returned_flags
= srename
->flags
;
3874 return srename
->new_name
;
3880 /* Once each of the sections is copied, we may still need to do some
3881 finalization work for private section headers. Do that here. */
3884 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3886 /* Allow the BFD backend to copy any private data it understands
3887 from the input section to the output section. */
3888 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3891 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3892 _("error in private header data"));
3896 /* All went well. */
3900 /* Create a section in OBFD with the same
3901 name and attributes as ISECTION in IBFD. */
3904 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
3906 bfd
*obfd
= (bfd
*) obfdarg
;
3907 struct section_list
*p
;
3915 char *prefix
= NULL
;
3916 bfd_boolean make_nobits
;
3917 unsigned int alignment
;
3919 if (is_strip_section (ibfd
, isection
))
3922 /* Get the, possibly new, name of the output section. */
3923 name
= bfd_section_name (isection
);
3924 flags
= bfd_section_flags (isection
);
3925 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
3927 flags
&= bfd_applicable_section_flags (ibfd
);
3928 flags
&= bfd_applicable_section_flags (obfd
);
3930 name
= find_section_rename (name
, &flags
);
3932 /* Prefix sections. */
3933 if (prefix_alloc_sections_string
3934 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
3935 prefix
= prefix_alloc_sections_string
;
3936 else if (prefix_sections_string
)
3937 prefix
= prefix_sections_string
;
3943 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
3949 make_nobits
= FALSE
;
3951 p
= find_section_list (bfd_section_name (isection
), FALSE
,
3952 SECTION_CONTEXT_SET_FLAGS
);
3954 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
3955 else if (strip_symbols
== STRIP_NONDEBUG
3956 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
3957 && !is_nondebug_keep_contents_section (ibfd
, isection
))
3959 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3960 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3964 /* Twiddle the input section flags so that it seems to
3965 elf.c:copy_private_bfd_data that section flags have not
3966 changed between input and output sections. This hack
3967 prevents wholesale rewriting of the program headers. */
3968 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
3972 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
3974 if (osection
== NULL
)
3976 err
= _("failed to create output section");
3981 elf_section_type (osection
) = SHT_NOBITS
;
3983 size
= bfd_section_size (isection
);
3984 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
3986 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
3987 else if (extract_symbol
)
3989 if (!bfd_set_section_size (osection
, size
))
3991 err
= _("failed to set size");
3995 vma
= bfd_section_vma (isection
);
3996 p
= find_section_list (bfd_section_name (isection
), FALSE
,
3997 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4000 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4006 vma
+= change_section_address
;
4008 if (!bfd_set_section_vma (osection
, vma
))
4010 err
= _("failed to set vma");
4014 lma
= isection
->lma
;
4015 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4016 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4019 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4025 lma
+= change_section_address
;
4027 osection
->lma
= lma
;
4029 p
= find_section_list (bfd_section_name (isection
), FALSE
,
4030 SECTION_CONTEXT_SET_ALIGNMENT
);
4032 alignment
= p
->alignment
;
4034 alignment
= bfd_section_alignment (isection
);
4036 /* FIXME: This is probably not enough. If we change the LMA we
4037 may have to recompute the header for the file as well. */
4038 if (!bfd_set_section_alignment (osection
, alignment
))
4040 err
= _("failed to set alignment");
4044 /* Copy merge entity size. */
4045 osection
->entsize
= isection
->entsize
;
4047 /* Copy compress status. */
4048 osection
->compress_status
= isection
->compress_status
;
4050 /* This used to be mangle_section; we do here to avoid using
4051 bfd_get_section_by_name since some formats allow multiple
4052 sections with the same name. */
4053 isection
->output_section
= osection
;
4054 isection
->output_offset
= 0;
4056 if ((isection
->flags
& SEC_GROUP
) != 0)
4058 asymbol
*gsym
= group_signature (isection
);
4062 gsym
->flags
|= BSF_KEEP
;
4063 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4064 elf_group_id (isection
) = gsym
;
4068 /* Allow the BFD backend to copy any private data it understands
4069 from the input section to the output section. */
4070 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4072 err
= _("failed to copy private data");
4076 /* All went well. */
4081 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4084 /* Return TRUE if input section ISECTION should be skipped. */
4087 skip_section (bfd
*ibfd
, sec_ptr isection
, bfd_boolean skip_copy
)
4093 /* If we have already failed earlier on,
4094 do not keep on generating complaints now. */
4101 if (is_strip_section (ibfd
, isection
))
4104 if (is_update_section (ibfd
, isection
))
4107 /* When merging a note section we skip the copying of the contents,
4108 but not the copying of the relocs associated with the contents. */
4109 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4112 flags
= bfd_section_flags (isection
);
4113 if ((flags
& SEC_GROUP
) != 0)
4116 osection
= isection
->output_section
;
4117 size
= bfd_section_size (isection
);
4119 if (size
== 0 || osection
== 0)
4125 /* Add section SECTION_PATTERN to the list of sections that will have their
4126 relocations removed. */
4129 handle_remove_relocations_option (const char *section_pattern
)
4131 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE_RELOCS
);
4134 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4135 otherwise return FALSE. If the user has requested that relocations be
4136 removed from a section that does not have relocations then this
4137 function will still return TRUE. */
4140 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4142 return (find_section_list (bfd_section_name (isection
), FALSE
,
4143 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4146 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4147 A special case is detected here, if the user asks to remove a relocation
4148 section (one starting with ".rela" or ".rel") then this removal must
4149 be done using a different technique in a relocatable object. */
4152 handle_remove_section_option (const char *section_pattern
)
4154 find_section_list (section_pattern
, TRUE
, SECTION_CONTEXT_REMOVE
);
4155 if (strncmp (section_pattern
, ".rel", 4) == 0)
4157 section_pattern
+= 4;
4158 if (*section_pattern
== 'a')
4160 if (*section_pattern
)
4161 handle_remove_relocations_option (section_pattern
);
4163 sections_removed
= TRUE
;
4166 /* Copy relocations in input section ISECTION of IBFD to an output
4167 section with the same name in OBFDARG. If stripping then don't
4168 copy any relocation info. */
4171 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4173 bfd
*obfd
= (bfd
*) obfdarg
;
4179 if (skip_section (ibfd
, isection
, FALSE
))
4182 osection
= isection
->output_section
;
4184 /* Core files and DWO files do not need to be relocated. */
4185 if (bfd_get_format (obfd
) == bfd_core
4186 || strip_symbols
== STRIP_NONDWO
4187 || discard_relocations (ibfd
, isection
))
4191 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4195 /* Do not complain if the target does not support relocations. */
4196 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4201 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4209 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4210 osection
->flags
&= ~SEC_RELOC
;
4214 if (isection
->orelocation
!= NULL
)
4216 /* Some other function has already set up the output relocs
4217 for us, so scan those instead of the default relocs. */
4218 relcount
= isection
->reloc_count
;
4219 relpp
= isection
->orelocation
;
4223 relpp
= (arelent
**) xmalloc (relsize
);
4224 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4228 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4229 _("relocation count is negative"));
4234 if (strip_symbols
== STRIP_ALL
)
4236 /* Remove relocations which are not in
4237 keep_strip_specific_list. */
4238 arelent
**temp_relpp
;
4239 long temp_relcount
= 0;
4242 temp_relpp
= (arelent
**) xmalloc (relsize
);
4243 for (i
= 0; i
< relcount
; i
++)
4245 /* PR 17512: file: 9e907e0c. */
4246 if (relpp
[i
]->sym_ptr_ptr
4248 && * relpp
[i
]->sym_ptr_ptr
)
4249 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4250 keep_specific_htab
))
4251 temp_relpp
[temp_relcount
++] = relpp
[i
];
4253 relcount
= temp_relcount
;
4254 if (isection
->orelocation
== NULL
)
4259 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4262 osection
->flags
&= ~SEC_RELOC
;
4268 /* Copy the data of input section ISECTION of IBFD
4269 to an output section with the same name in OBFD. */
4272 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4274 bfd
*obfd
= (bfd
*) obfdarg
;
4275 struct section_list
*p
;
4279 if (skip_section (ibfd
, isection
, TRUE
))
4282 osection
= isection
->output_section
;
4283 /* The output SHF_COMPRESSED section size is different from input if
4284 ELF classes of input and output aren't the same. We can't use
4285 the output section size since --interleave will shrink the output
4286 section. Size will be updated if the section is converted. */
4287 size
= bfd_section_size (isection
);
4289 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4290 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4292 bfd_byte
*memhunk
= NULL
;
4294 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4295 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4299 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4306 /* We don't handle leftover bytes (too many possible behaviors,
4307 and we don't know what the user wants). The section length
4308 must be a multiple of the number of bytes to swap. */
4309 if ((size
% reverse_bytes
) == 0)
4314 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4315 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4317 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4320 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4321 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4325 /* User must pad the section up in order to do this. */
4326 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4327 bfd_section_name (isection
), reverse_bytes
);
4332 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4333 char *from
= (char *) memhunk
+ copy_byte
;
4334 char *to
= (char *) memhunk
;
4335 char *end
= (char *) memhunk
+ size
;
4338 /* If the section address is not exactly divisible by the interleave,
4339 then we must bias the from address. If the copy_byte is less than
4340 the bias, then we must skip forward one interleave, and increment
4342 int extra
= isection
->lma
% interleave
;
4344 if (copy_byte
< extra
)
4347 for (; from
< end
; from
+= interleave
)
4348 for (i
= 0; i
< copy_width
; i
++)
4350 if (&from
[i
] >= end
)
4355 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4356 osection
->lma
/= interleave
;
4357 if (copy_byte
< extra
)
4361 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4364 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4370 else if ((p
= find_section_list (bfd_section_name (isection
),
4371 FALSE
, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4372 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4374 void *memhunk
= xmalloc (size
);
4376 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4377 flag--they can just remove the section entirely and add it
4378 back again. However, we do permit them to turn on the
4379 SEC_HAS_CONTENTS flag, and take it to mean that the section
4380 contents should be zeroed out. */
4382 memset (memhunk
, 0, size
);
4383 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4386 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4394 /* Get all the sections. This is used when --gap-fill or --pad-to is
4398 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4400 asection
***secppp
= (asection
***) secppparg
;
4402 **secppp
= osection
;
4406 /* Sort sections by LMA. This is called via qsort, and is used when
4407 --gap-fill or --pad-to is used. We force non loadable or empty
4408 sections to the front, where they are easier to ignore. */
4411 compare_section_lma (const void *arg1
, const void *arg2
)
4413 const asection
*sec1
= *(const asection
**) arg1
;
4414 const asection
*sec2
= *(const asection
**) arg2
;
4415 flagword flags1
, flags2
;
4417 /* Sort non loadable sections to the front. */
4418 flags1
= sec1
->flags
;
4419 flags2
= sec2
->flags
;
4420 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4421 || (flags1
& SEC_LOAD
) == 0)
4423 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4424 && (flags2
& SEC_LOAD
) != 0)
4429 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4430 || (flags2
& SEC_LOAD
) == 0)
4434 /* Sort sections by LMA. */
4435 if (sec1
->lma
> sec2
->lma
)
4437 if (sec1
->lma
< sec2
->lma
)
4440 /* Sort sections with the same LMA by size. */
4441 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4443 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4446 if (sec1
->id
> sec2
->id
)
4448 if (sec1
->id
< sec2
->id
)
4453 /* Mark all the symbols which will be used in output relocations with
4454 the BSF_KEEP flag so that those symbols will not be stripped.
4456 Ignore relocations which will not appear in the output file. */
4459 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4461 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4466 /* Ignore an input section with no corresponding output section. */
4467 if (isection
->output_section
== NULL
)
4470 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4473 /* Do not complain if the target does not support relocations. */
4474 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4476 bfd_fatal (bfd_get_filename (ibfd
));
4482 relpp
= (arelent
**) xmalloc (relsize
);
4483 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4485 bfd_fatal (bfd_get_filename (ibfd
));
4487 /* Examine each symbol used in a relocation. If it's not one of the
4488 special bfd section symbols, then mark it with BSF_KEEP. */
4489 for (i
= 0; i
< relcount
; i
++)
4491 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4492 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4493 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4494 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4495 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4496 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4497 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4504 /* Write out debugging information. */
4507 write_debugging_info (bfd
*obfd
, void *dhandle
,
4508 long *symcountp ATTRIBUTE_UNUSED
,
4509 asymbol
***symppp ATTRIBUTE_UNUSED
)
4511 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4512 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4514 bfd_byte
*syms
, *strings
= NULL
;
4515 bfd_size_type symsize
, stringsize
;
4516 asection
*stabsec
, *stabstrsec
;
4519 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4524 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4525 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4526 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4528 || stabstrsec
== NULL
4529 || !bfd_set_section_size (stabsec
, symsize
)
4530 || !bfd_set_section_size (stabstrsec
, stringsize
)
4531 || !bfd_set_section_alignment (stabsec
, 2)
4532 || !bfd_set_section_alignment (stabstrsec
, 0))
4534 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4535 _("can't create debugging section"));
4540 /* We can get away with setting the section contents now because
4541 the next thing the caller is going to do is copy over the
4542 real sections. We may someday have to split the contents
4543 setting out of this function. */
4544 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4545 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4548 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4549 _("can't set debugging section contents"));
4557 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4558 _("don't know how to write debugging information for %s"),
4559 bfd_get_target (obfd
));
4563 /* If neither -D nor -U was specified explicitly,
4564 then use the configured default. */
4566 default_deterministic (void)
4568 if (deterministic
< 0)
4569 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4573 strip_main (int argc
, char *argv
[])
4575 char *input_target
= NULL
;
4576 char *output_target
= NULL
;
4577 bfd_boolean show_version
= FALSE
;
4578 bfd_boolean formats_info
= FALSE
;
4581 char *output_file
= NULL
;
4582 bfd_boolean merge_notes_set
= FALSE
;
4584 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4585 strip_options
, (int *) 0)) != EOF
)
4590 input_target
= optarg
;
4593 output_target
= optarg
;
4596 input_target
= output_target
= optarg
;
4599 handle_remove_section_option (optarg
);
4601 case OPTION_KEEP_SECTION
:
4602 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
4604 case OPTION_REMOVE_RELOCS
:
4605 handle_remove_relocations_option (optarg
);
4608 strip_symbols
= STRIP_ALL
;
4612 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4613 strip_symbols
= STRIP_DEBUG
;
4615 case OPTION_STRIP_DWO
:
4616 strip_symbols
= STRIP_DWO
;
4618 case OPTION_STRIP_UNNEEDED
:
4619 strip_symbols
= STRIP_UNNEEDED
;
4622 add_specific_symbol (optarg
, keep_specific_htab
);
4626 merge_notes_set
= TRUE
;
4628 case OPTION_NO_MERGE_NOTES
:
4629 merge_notes
= FALSE
;
4630 merge_notes_set
= TRUE
;
4633 add_specific_symbol (optarg
, strip_specific_htab
);
4636 output_file
= optarg
;
4639 preserve_dates
= TRUE
;
4642 deterministic
= TRUE
;
4645 deterministic
= FALSE
;
4648 discard_locals
= LOCALS_ALL
;
4651 discard_locals
= LOCALS_START_L
;
4657 show_version
= TRUE
;
4659 case OPTION_FORMATS_INFO
:
4660 formats_info
= TRUE
;
4662 case OPTION_ONLY_KEEP_DEBUG
:
4663 strip_symbols
= STRIP_NONDEBUG
;
4665 case OPTION_KEEP_FILE_SYMBOLS
:
4666 keep_file_symbols
= 1;
4669 /* We've been given a long option. */
4676 strip_usage (stdout
, 0);
4678 strip_usage (stderr
, 1);
4682 /* If the user has not expressly chosen to merge/not-merge ELF notes
4683 then enable the merging unless we are stripping debug or dwo info. */
4684 if (! merge_notes_set
4685 && (strip_symbols
== STRIP_UNDEF
4686 || strip_symbols
== STRIP_ALL
4687 || strip_symbols
== STRIP_UNNEEDED
4688 || strip_symbols
== STRIP_NONDEBUG
4689 || strip_symbols
== STRIP_NONDWO
))
4699 print_version ("strip");
4701 default_deterministic ();
4703 /* Default is to strip all symbols. */
4704 if (strip_symbols
== STRIP_UNDEF
4705 && discard_locals
== LOCALS_UNDEF
4706 && htab_elements (strip_specific_htab
) == 0)
4707 strip_symbols
= STRIP_ALL
;
4709 if (output_target
== NULL
)
4710 output_target
= input_target
;
4714 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4715 strip_usage (stderr
, 1);
4717 for (; i
< argc
; i
++)
4719 int hold_status
= status
;
4720 struct stat statbuf
;
4723 if (get_file_size (argv
[i
]) < 1)
4730 /* No need to check the return value of stat().
4731 It has already been checked in get_file_size(). */
4732 stat (argv
[i
], &statbuf
);
4734 if (output_file
== NULL
4735 || filename_cmp (argv
[i
], output_file
) == 0)
4736 tmpname
= make_tempname (argv
[i
]);
4738 tmpname
= output_file
;
4740 if (tmpname
== NULL
)
4742 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4743 _("could not create temporary file to hold stripped copy"));
4749 copy_file (argv
[i
], tmpname
, input_target
, output_target
, NULL
);
4753 set_times (tmpname
, &statbuf
);
4754 if (output_file
!= tmpname
)
4755 status
= (smart_rename (tmpname
,
4756 output_file
? output_file
: argv
[i
],
4757 preserve_dates
) != 0);
4759 status
= hold_status
;
4762 unlink_if_ordinary (tmpname
);
4763 if (output_file
!= tmpname
)
4770 /* Set up PE subsystem. */
4773 set_pe_subsystem (const char *s
)
4775 const char *version
, *subsystem
;
4785 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4786 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4787 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4788 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4789 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4790 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4791 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4792 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4793 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4794 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4800 /* Check for the presence of a version number. */
4801 version
= strchr (s
, ':');
4802 if (version
== NULL
)
4806 int len
= version
- s
;
4810 version
= copy
+ 1 + len
;
4811 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4813 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4815 non_fatal (_("%s: bad version in PE subsystem"), s
);
4818 /* Check for numeric subsystem. */
4819 value
= (short) strtol (subsystem
, ©
, 0);
4822 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4823 if (v
[i
].value
== value
)
4825 pe_subsystem
= value
;
4826 set_def
= v
[i
].set_def
;
4832 /* Search for subsystem by name. */
4833 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4834 if (strcmp (subsystem
, v
[i
].name
) == 0)
4836 pe_subsystem
= v
[i
].value
;
4837 set_def
= v
[i
].set_def
;
4845 fatal (_("unknown PE subsystem: %s"), s
);
4850 if (pe_file_alignment
== (bfd_vma
) -1)
4851 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4852 if (pe_section_alignment
== (bfd_vma
) -1)
4853 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4857 free ((char *) subsystem
);
4860 /* Convert EFI target to PEI target. */
4863 convert_efi_target (char *efi
)
4869 if (strcmp (efi
+ 4, "ia32") == 0)
4871 /* Change ia32 to i386. */
4876 else if (strcmp (efi
+ 4, "x86_64") == 0)
4878 /* Change x86_64 to x86-64. */
4883 /* Allocate and return a pointer to a struct section_add, initializing the
4884 structure using ARG, a string in the format "sectionname=filename".
4885 The returned structure will have its next pointer set to NEXT. The
4886 OPTION field is the name of the command line option currently being
4887 parsed, and is only used if an error needs to be reported. */
4889 static struct section_add
*
4890 init_section_add (const char *arg
,
4891 struct section_add
*next
,
4894 struct section_add
*pa
;
4897 s
= strchr (arg
, '=');
4899 fatal (_("bad format for %s"), option
);
4901 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
4902 pa
->name
= xstrndup (arg
, s
- arg
);
4903 pa
->filename
= s
+ 1;
4905 pa
->contents
= NULL
;
4911 /* Load the file specified in PA, allocating memory to hold the file
4912 contents, and store a pointer to the allocated memory in the contents
4913 field of PA. The size field of PA is also updated. All errors call
4917 section_add_load_file (struct section_add
*pa
)
4922 /* We don't use get_file_size so that we can do
4923 --add-section .note.GNU_stack=/dev/null
4924 get_file_size doesn't work on /dev/null. */
4926 f
= fopen (pa
->filename
, FOPEN_RB
);
4928 fatal (_("cannot open: %s: %s"),
4929 pa
->filename
, strerror (errno
));
4933 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
4941 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
4944 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
4946 fatal (_("%s: fread failed"), pa
->filename
);
4957 copy_main (int argc
, char *argv
[])
4959 char *input_filename
= NULL
;
4960 char *output_filename
= NULL
;
4962 char *input_target
= NULL
;
4963 char *output_target
= NULL
;
4964 bfd_boolean show_version
= FALSE
;
4965 bfd_boolean change_warn
= TRUE
;
4966 bfd_boolean formats_info
= FALSE
;
4967 bfd_boolean use_globalize
= FALSE
;
4968 bfd_boolean use_keep_global
= FALSE
;
4970 struct stat statbuf
;
4971 const bfd_arch_info_type
*input_arch
= NULL
;
4973 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
4974 copy_options
, (int *) 0)) != EOF
)
4979 copy_byte
= atoi (optarg
);
4981 fatal (_("byte number must be non-negative"));
4985 input_arch
= bfd_scan_arch (optarg
);
4986 if (input_arch
== NULL
)
4987 fatal (_("architecture %s unknown"), optarg
);
4993 interleave
= atoi (optarg
);
4995 fatal (_("interleave must be positive"));
5001 case OPTION_INTERLEAVE_WIDTH
:
5002 copy_width
= atoi (optarg
);
5004 fatal(_("interleave width must be positive"));
5008 case 's': /* "source" - 'I' is preferred */
5009 input_target
= optarg
;
5013 case 'd': /* "destination" - 'O' is preferred */
5014 output_target
= optarg
;
5018 input_target
= output_target
= optarg
;
5022 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_COPY
);
5023 sections_copied
= TRUE
;
5027 handle_remove_section_option (optarg
);
5030 case OPTION_KEEP_SECTION
:
5031 find_section_list (optarg
, TRUE
, SECTION_CONTEXT_KEEP
);
5034 case OPTION_REMOVE_RELOCS
:
5035 handle_remove_relocations_option (optarg
);
5039 strip_symbols
= STRIP_ALL
;
5043 strip_symbols
= STRIP_DEBUG
;
5046 case OPTION_STRIP_DWO
:
5047 strip_symbols
= STRIP_DWO
;
5050 case OPTION_STRIP_UNNEEDED
:
5051 strip_symbols
= STRIP_UNNEEDED
;
5054 case OPTION_ONLY_KEEP_DEBUG
:
5055 strip_symbols
= STRIP_NONDEBUG
;
5058 case OPTION_KEEP_FILE_SYMBOLS
:
5059 keep_file_symbols
= 1;
5062 case OPTION_ADD_GNU_DEBUGLINK
:
5063 long_section_names
= ENABLE
;
5064 gnu_debuglink_filename
= optarg
;
5068 add_specific_symbol (optarg
, keep_specific_htab
);
5074 case OPTION_NO_MERGE_NOTES
:
5075 merge_notes
= FALSE
;
5079 add_specific_symbol (optarg
, strip_specific_htab
);
5082 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5083 add_specific_symbol (optarg
, strip_unneeded_htab
);
5087 add_specific_symbol (optarg
, localize_specific_htab
);
5090 case OPTION_GLOBALIZE_SYMBOL
:
5091 use_globalize
= TRUE
;
5092 add_specific_symbol (optarg
, globalize_specific_htab
);
5096 use_keep_global
= TRUE
;
5097 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5101 add_specific_symbol (optarg
, weaken_specific_htab
);
5105 preserve_dates
= TRUE
;
5109 deterministic
= TRUE
;
5113 deterministic
= FALSE
;
5121 discard_locals
= LOCALS_ALL
;
5125 discard_locals
= LOCALS_START_L
;
5133 show_version
= TRUE
;
5136 case OPTION_FORMATS_INFO
:
5137 formats_info
= TRUE
;
5144 case OPTION_ADD_SECTION
:
5145 add_sections
= init_section_add (optarg
, add_sections
,
5147 section_add_load_file (add_sections
);
5150 case OPTION_UPDATE_SECTION
:
5151 update_sections
= init_section_add (optarg
, update_sections
,
5152 "--update-section");
5153 section_add_load_file (update_sections
);
5156 case OPTION_DUMP_SECTION
:
5157 dump_sections
= init_section_add (optarg
, dump_sections
,
5161 case OPTION_ADD_SYMBOL
:
5164 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5166 newsym
->next
= NULL
;
5167 s
= strchr (optarg
, '=');
5169 fatal (_("bad format for %s"), "--add-symbol");
5170 t
= strchr (s
+ 1, ':');
5172 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5175 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5176 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5180 newsym
->section
= NULL
;
5181 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5185 t
= strchr (t
+ 1, ',');
5186 newsym
->othersym
= NULL
;
5188 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5190 newsym
->flags
= BSF_GLOBAL
;
5192 /* Keep 'othersym' symbols at the front of the list. */
5193 if (newsym
->othersym
)
5195 newsym
->next
= add_sym_list
;
5197 add_sym_tail
= &newsym
->next
;
5198 add_sym_list
= newsym
;
5202 *add_sym_tail
= newsym
;
5203 add_sym_tail
= &newsym
->next
;
5209 case OPTION_CHANGE_START
:
5210 change_start
= parse_vma (optarg
, "--change-start");
5213 case OPTION_CHANGE_SECTION_ADDRESS
:
5214 case OPTION_CHANGE_SECTION_LMA
:
5215 case OPTION_CHANGE_SECTION_VMA
:
5217 struct section_list
* p
;
5218 unsigned int context
= 0;
5222 char *option
= NULL
;
5227 case OPTION_CHANGE_SECTION_ADDRESS
:
5228 option
= "--change-section-address";
5229 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5231 case OPTION_CHANGE_SECTION_LMA
:
5232 option
= "--change-section-lma";
5233 context
= SECTION_CONTEXT_ALTER_LMA
;
5235 case OPTION_CHANGE_SECTION_VMA
:
5236 option
= "--change-section-vma";
5237 context
= SECTION_CONTEXT_ALTER_VMA
;
5241 s
= strchr (optarg
, '=');
5244 s
= strchr (optarg
, '+');
5247 s
= strchr (optarg
, '-');
5249 fatal (_("bad format for %s"), option
);
5254 /* Correct the context. */
5257 case OPTION_CHANGE_SECTION_ADDRESS
:
5258 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5260 case OPTION_CHANGE_SECTION_LMA
:
5261 context
= SECTION_CONTEXT_SET_LMA
;
5263 case OPTION_CHANGE_SECTION_VMA
:
5264 context
= SECTION_CONTEXT_SET_VMA
;
5270 name
= (char *) xmalloc (len
+ 1);
5271 strncpy (name
, optarg
, len
);
5274 p
= find_section_list (name
, TRUE
, context
);
5276 val
= parse_vma (s
+ 1, option
);
5282 case OPTION_CHANGE_SECTION_ADDRESS
:
5286 case OPTION_CHANGE_SECTION_LMA
:
5290 case OPTION_CHANGE_SECTION_VMA
:
5297 case OPTION_CHANGE_ADDRESSES
:
5298 change_section_address
= parse_vma (optarg
, "--change-addresses");
5299 change_start
= change_section_address
;
5302 case OPTION_CHANGE_WARNINGS
:
5306 case OPTION_CHANGE_LEADING_CHAR
:
5307 change_leading_char
= TRUE
;
5310 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5313 if (strcasecmp (optarg
, "none") == 0)
5314 do_debug_sections
= decompress
;
5315 else if (strcasecmp (optarg
, "zlib") == 0)
5316 do_debug_sections
= compress_zlib
;
5317 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5318 do_debug_sections
= compress_gnu_zlib
;
5319 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5320 do_debug_sections
= compress_gabi_zlib
;
5322 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5326 do_debug_sections
= compress
;
5329 case OPTION_DEBUGGING
:
5330 convert_debugging
= TRUE
;
5333 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5334 do_debug_sections
= decompress
;
5337 case OPTION_ELF_STT_COMMON
:
5338 if (strcasecmp (optarg
, "yes") == 0)
5339 do_elf_stt_common
= elf_stt_common
;
5340 else if (strcasecmp (optarg
, "no") == 0)
5341 do_elf_stt_common
= no_elf_stt_common
;
5343 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5347 case OPTION_GAP_FILL
:
5349 bfd_vma gap_fill_vma
;
5351 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5352 gap_fill
= (bfd_byte
) gap_fill_vma
;
5353 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5357 sprintf_vma (buff
, gap_fill_vma
);
5359 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5362 gap_fill_set
= TRUE
;
5366 case OPTION_NO_CHANGE_WARNINGS
:
5367 change_warn
= FALSE
;
5371 pad_to
= parse_vma (optarg
, "--pad-to");
5375 case OPTION_REMOVE_LEADING_CHAR
:
5376 remove_leading_char
= TRUE
;
5379 case OPTION_REDEFINE_SYM
:
5381 /* Insert this redefinition onto redefine_specific_htab. */
5385 const char *nextarg
;
5386 char *source
, *target
;
5388 s
= strchr (optarg
, '=');
5390 fatal (_("bad format for %s"), "--redefine-sym");
5393 source
= (char *) xmalloc (len
+ 1);
5394 strncpy (source
, optarg
, len
);
5398 len
= strlen (nextarg
);
5399 target
= (char *) xmalloc (len
+ 1);
5400 strcpy (target
, nextarg
);
5402 add_redefine_and_check ("--redefine-sym", source
, target
);
5409 case OPTION_REDEFINE_SYMS
:
5410 add_redefine_syms_file (optarg
);
5413 case OPTION_SET_SECTION_FLAGS
:
5415 struct section_list
*p
;
5420 s
= strchr (optarg
, '=');
5422 fatal (_("bad format for %s"), "--set-section-flags");
5425 name
= (char *) xmalloc (len
+ 1);
5426 strncpy (name
, optarg
, len
);
5429 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_FLAGS
);
5431 p
->flags
= parse_flags (s
+ 1);
5435 case OPTION_SET_SECTION_ALIGNMENT
:
5437 struct section_list
*p
;
5443 s
= strchr (optarg
, '=');
5445 fatal (_("bad format for --set-section-alignment: argument needed"));
5447 align
= atoi (s
+ 1);
5449 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5451 /* Convert integer alignment into a power-of-two alignment. */
5453 while ((align
& 1) == 0)
5460 /* Number has more than on 1, i.e. wasn't a power of 2. */
5461 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5463 /* Add the alignment setting to the section list. */
5465 name
= (char *) xmalloc (len
+ 1);
5466 strncpy (name
, optarg
, len
);
5469 p
= find_section_list (name
, TRUE
, SECTION_CONTEXT_SET_ALIGNMENT
);
5471 p
->alignment
= palign
;
5475 case OPTION_RENAME_SECTION
:
5478 const char *eq
, *fl
;
5483 eq
= strchr (optarg
, '=');
5485 fatal (_("bad format for %s"), "--rename-section");
5489 fatal (_("bad format for %s"), "--rename-section");
5491 old_name
= (char *) xmalloc (len
+ 1);
5492 strncpy (old_name
, optarg
, len
);
5496 fl
= strchr (eq
, ',');
5499 flags
= parse_flags (fl
+ 1);
5509 fatal (_("bad format for %s"), "--rename-section");
5511 new_name
= (char *) xmalloc (len
+ 1);
5512 strncpy (new_name
, eq
, len
);
5515 add_section_rename (old_name
, new_name
, flags
);
5519 case OPTION_SET_START
:
5520 set_start
= parse_vma (optarg
, "--set-start");
5521 set_start_set
= TRUE
;
5524 case OPTION_SREC_LEN
:
5525 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5528 case OPTION_SREC_FORCES3
:
5529 _bfd_srec_forceS3
= TRUE
;
5532 case OPTION_STRIP_SYMBOLS
:
5533 add_specific_symbols (optarg
, strip_specific_htab
,
5534 &strip_specific_buffer
);
5537 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5538 add_specific_symbols (optarg
, strip_unneeded_htab
,
5539 &strip_unneeded_buffer
);
5542 case OPTION_KEEP_SYMBOLS
:
5543 add_specific_symbols (optarg
, keep_specific_htab
,
5544 &keep_specific_buffer
);
5547 case OPTION_LOCALIZE_HIDDEN
:
5548 localize_hidden
= TRUE
;
5551 case OPTION_LOCALIZE_SYMBOLS
:
5552 add_specific_symbols (optarg
, localize_specific_htab
,
5553 &localize_specific_buffer
);
5556 case OPTION_LONG_SECTION_NAMES
:
5557 if (!strcmp ("enable", optarg
))
5558 long_section_names
= ENABLE
;
5559 else if (!strcmp ("disable", optarg
))
5560 long_section_names
= DISABLE
;
5561 else if (!strcmp ("keep", optarg
))
5562 long_section_names
= KEEP
;
5564 fatal (_("unknown long section names option '%s'"), optarg
);
5567 case OPTION_GLOBALIZE_SYMBOLS
:
5568 use_globalize
= TRUE
;
5569 add_specific_symbols (optarg
, globalize_specific_htab
,
5570 &globalize_specific_buffer
);
5573 case OPTION_KEEPGLOBAL_SYMBOLS
:
5574 use_keep_global
= TRUE
;
5575 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5576 &keepglobal_specific_buffer
);
5579 case OPTION_WEAKEN_SYMBOLS
:
5580 add_specific_symbols (optarg
, weaken_specific_htab
,
5581 &weaken_specific_buffer
);
5584 case OPTION_ALT_MACH_CODE
:
5585 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5586 if (use_alt_mach_code
== 0)
5587 fatal (_("unable to parse alternative machine code"));
5590 case OPTION_PREFIX_SYMBOLS
:
5591 prefix_symbols_string
= optarg
;
5594 case OPTION_PREFIX_SECTIONS
:
5595 prefix_sections_string
= optarg
;
5598 case OPTION_PREFIX_ALLOC_SECTIONS
:
5599 prefix_alloc_sections_string
= optarg
;
5602 case OPTION_READONLY_TEXT
:
5603 bfd_flags_to_set
|= WP_TEXT
;
5604 bfd_flags_to_clear
&= ~WP_TEXT
;
5607 case OPTION_WRITABLE_TEXT
:
5608 bfd_flags_to_clear
|= WP_TEXT
;
5609 bfd_flags_to_set
&= ~WP_TEXT
;
5613 bfd_flags_to_set
|= D_PAGED
;
5614 bfd_flags_to_clear
&= ~D_PAGED
;
5618 bfd_flags_to_clear
|= D_PAGED
;
5619 bfd_flags_to_set
&= ~D_PAGED
;
5622 case OPTION_EXTRACT_DWO
:
5623 strip_symbols
= STRIP_NONDWO
;
5626 case OPTION_EXTRACT_SYMBOL
:
5627 extract_symbol
= TRUE
;
5630 case OPTION_REVERSE_BYTES
:
5632 int prev
= reverse_bytes
;
5634 reverse_bytes
= atoi (optarg
);
5635 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5636 fatal (_("number of bytes to reverse must be positive and even"));
5638 if (prev
&& prev
!= reverse_bytes
)
5639 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5644 case OPTION_FILE_ALIGNMENT
:
5645 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5651 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5653 || (*end
!= '.' && *end
!= '\0'))
5654 non_fatal (_("%s: invalid reserve value for --heap"),
5656 else if (*end
!= '\0')
5658 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5660 non_fatal (_("%s: invalid commit value for --heap"),
5666 case OPTION_IMAGE_BASE
:
5667 pe_image_base
= parse_vma (optarg
, "--image-base");
5670 case OPTION_PE_SECTION_ALIGNMENT
:
5671 pe_section_alignment
= parse_vma (optarg
,
5672 "--section-alignment");
5675 case OPTION_SUBSYSTEM
:
5676 set_pe_subsystem (optarg
);
5682 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5684 || (*end
!= '.' && *end
!= '\0'))
5685 non_fatal (_("%s: invalid reserve value for --stack"),
5687 else if (*end
!= '\0')
5689 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5691 non_fatal (_("%s: invalid commit value for --stack"),
5697 case OPTION_VERILOG_DATA_WIDTH
:
5698 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5699 if (VerilogDataWidth
< 1)
5700 fatal (_("verilog data width must be at least 1 byte"));
5704 /* We've been given a long option. */
5709 copy_usage (stdout
, 0);
5712 copy_usage (stderr
, 1);
5716 if (use_globalize
&& use_keep_global
)
5717 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5726 print_version ("objcopy");
5728 if (interleave
&& copy_byte
== -1)
5729 fatal (_("interleave start byte must be set with --byte"));
5731 if (copy_byte
>= interleave
)
5732 fatal (_("byte number must be less than interleave"));
5734 if (copy_width
> interleave
- copy_byte
)
5735 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5737 if (optind
== argc
|| optind
+ 2 < argc
)
5738 copy_usage (stderr
, 1);
5740 input_filename
= argv
[optind
];
5741 if (optind
+ 1 < argc
)
5742 output_filename
= argv
[optind
+ 1];
5744 default_deterministic ();
5746 /* Default is to strip no symbols. */
5747 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5748 strip_symbols
= STRIP_NONE
;
5750 if (output_target
== NULL
)
5751 output_target
= input_target
;
5753 /* Convert input EFI target to PEI target. */
5754 if (input_target
!= NULL
5755 && strncmp (input_target
, "efi-", 4) == 0)
5759 efi
= xstrdup (output_target
+ 4);
5760 if (strncmp (efi
, "bsdrv-", 6) == 0
5761 || strncmp (efi
, "rtdrv-", 6) == 0)
5763 else if (strncmp (efi
, "app-", 4) != 0)
5764 fatal (_("unknown input EFI target: %s"), input_target
);
5767 convert_efi_target (efi
);
5770 /* Convert output EFI target to PEI target. */
5771 if (output_target
!= NULL
5772 && strncmp (output_target
, "efi-", 4) == 0)
5776 efi
= xstrdup (output_target
+ 4);
5777 if (strncmp (efi
, "app-", 4) == 0)
5779 if (pe_subsystem
== -1)
5780 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5782 else if (strncmp (efi
, "bsdrv-", 6) == 0)
5784 if (pe_subsystem
== -1)
5785 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5788 else if (strncmp (efi
, "rtdrv-", 6) == 0)
5790 if (pe_subsystem
== -1)
5791 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5795 fatal (_("unknown output EFI target: %s"), output_target
);
5797 if (pe_file_alignment
== (bfd_vma
) -1)
5798 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5799 if (pe_section_alignment
== (bfd_vma
) -1)
5800 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5802 output_target
= efi
;
5803 convert_efi_target (efi
);
5807 if (stat (input_filename
, & statbuf
) < 0)
5808 fatal (_("warning: could not locate '%s'. System error message: %s"),
5809 input_filename
, strerror (errno
));
5811 /* If there is no destination file, or the source and destination files
5812 are the same, then create a temp and rename the result into the input. */
5813 if (output_filename
== NULL
5814 || filename_cmp (input_filename
, output_filename
) == 0)
5815 tmpname
= make_tempname (input_filename
);
5817 tmpname
= output_filename
;
5819 if (tmpname
== NULL
)
5820 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5821 input_filename
, strerror (errno
));
5823 copy_file (input_filename
, tmpname
, input_target
, output_target
, input_arch
);
5827 set_times (tmpname
, &statbuf
);
5828 if (tmpname
!= output_filename
)
5829 status
= (smart_rename (tmpname
, input_filename
,
5830 preserve_dates
) != 0);
5833 unlink_if_ordinary (tmpname
);
5835 if (tmpname
!= output_filename
)
5840 struct section_list
*p
;
5842 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5846 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5850 sprintf_vma (buff
, p
->vma_val
);
5852 /* xgettext:c-format */
5853 non_fatal (_("%s %s%c0x%s never used"),
5854 "--change-section-vma",
5856 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5860 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5864 sprintf_vma (buff
, p
->lma_val
);
5866 /* xgettext:c-format */
5867 non_fatal (_("%s %s%c0x%s never used"),
5868 "--change-section-lma",
5870 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5877 if (strip_specific_buffer
)
5878 free (strip_specific_buffer
);
5880 if (strip_unneeded_buffer
)
5881 free (strip_unneeded_buffer
);
5883 if (keep_specific_buffer
)
5884 free (keep_specific_buffer
);
5886 if (localize_specific_buffer
)
5887 free (globalize_specific_buffer
);
5889 if (globalize_specific_buffer
)
5890 free (globalize_specific_buffer
);
5892 if (keepglobal_specific_buffer
)
5893 free (keepglobal_specific_buffer
);
5895 if (weaken_specific_buffer
)
5896 free (weaken_specific_buffer
);
5902 main (int argc
, char *argv
[])
5904 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
5905 setlocale (LC_MESSAGES
, "");
5907 #if defined (HAVE_SETLOCALE)
5908 setlocale (LC_CTYPE
, "");
5910 bindtextdomain (PACKAGE
, LOCALEDIR
);
5911 textdomain (PACKAGE
);
5913 program_name
= argv
[0];
5914 xmalloc_set_program_name (program_name
);
5916 START_PROGRESS (program_name
, 0);
5918 expandargv (&argc
, &argv
);
5920 strip_symbols
= STRIP_UNDEF
;
5921 discard_locals
= LOCALS_UNDEF
;
5923 if (bfd_init () != BFD_INIT_MAGIC
)
5924 fatal (_("fatal error: libbfd ABI mismatch"));
5925 set_default_bfd_target ();
5929 int i
= strlen (program_name
);
5930 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
5931 /* Drop the .exe suffix, if any. */
5932 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
5935 program_name
[i
] = '\0';
5938 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
5941 create_symbol_htabs ();
5944 bfd_set_error_program_name (argv
[0]);
5947 strip_main (argc
, argv
);
5949 copy_main (argc
, argv
);
5951 END_PROGRESS (program_name
);