1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2022 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "libiberty.h"
28 #include "filenames.h"
31 #include "coff/internal.h"
33 #include "safe-ctype.h"
35 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
36 header in generic PE code. */
37 #include "coff/i386.h"
40 static bfd_vma pe_file_alignment
= (bfd_vma
) -1;
41 static bfd_vma pe_heap_commit
= (bfd_vma
) -1;
42 static bfd_vma pe_heap_reserve
= (bfd_vma
) -1;
43 static bfd_vma pe_image_base
= (bfd_vma
) -1;
44 static bfd_vma pe_section_alignment
= (bfd_vma
) -1;
45 static bfd_vma pe_stack_commit
= (bfd_vma
) -1;
46 static bfd_vma pe_stack_reserve
= (bfd_vma
) -1;
47 static short pe_subsystem
= -1;
48 static short pe_major_subsystem_version
= -1;
49 static short pe_minor_subsystem_version
= -1;
51 struct is_specified_symbol_predicate_data
57 /* A node includes symbol name mapping to support redefine_sym. */
66 struct addsym_node
*next
;
71 const char * othersym
;
74 typedef struct section_rename
76 const char * old_name
;
77 const char * new_name
;
79 struct section_rename
* next
;
83 /* List of sections to be renamed. */
84 static section_rename
*section_rename_list
;
86 static asymbol
**isympp
= NULL
; /* Input symbols. */
87 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
89 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
90 static int copy_byte
= -1;
91 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
92 static int copy_width
= 1;
94 static bool keep_section_symbols
= false ;/* True if section symbols should be retained. */
95 static bool verbose
; /* Print file and target names. */
96 static bool preserve_dates
; /* Preserve input file timestamp. */
97 static int deterministic
= -1; /* Enable deterministic archives. */
98 static int status
= 0; /* Exit status. */
100 static bool merge_notes
= false; /* Merge note sections. */
102 typedef struct merged_note_section
104 asection
* sec
; /* The section that is being merged. */
105 bfd_byte
* contents
;/* New contents of the section. */
106 bfd_size_type size
; /* New size of the section. */
107 struct merged_note_section
* next
; /* Link to next merged note section. */
108 } merged_note_section
;
113 STRIP_NONE
, /* Don't strip. */
114 STRIP_DEBUG
, /* Strip all debugger symbols. */
115 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
116 STRIP_NONDEBUG
, /* Strip everything but debug info. */
117 STRIP_DWO
, /* Strip all DWO info. */
118 STRIP_NONDWO
, /* Strip everything but DWO info. */
119 STRIP_ALL
/* Strip all symbols. */
122 /* Which symbols to remove. */
123 static enum strip_action strip_symbols
= STRIP_UNDEF
;
128 LOCALS_START_L
, /* Discard locals starting with L. */
129 LOCALS_ALL
/* Discard all locals. */
132 /* Which local symbols to remove. Overrides STRIP_ALL. */
133 static enum locals_action discard_locals
;
135 /* Structure used to hold lists of sections and actions to take. */
138 struct section_list
*next
; /* Next section to change. */
139 const char *pattern
; /* Section name pattern. */
140 bool used
; /* Whether this entry was used. */
142 unsigned int context
; /* What to do with matching sections. */
143 /* Flag bits used in the context field.
144 COPY and REMOVE are mutually exlusive.
145 SET and ALTER are mutually exclusive. */
146 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
147 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
148 #define SECTION_CONTEXT_KEEP (1 << 2) /* Keep this section. */
149 #define SECTION_CONTEXT_SET_VMA (1 << 3) /* Set the sections' VMA address. */
150 #define SECTION_CONTEXT_ALTER_VMA (1 << 4) /* Increment or decrement the section's VMA address. */
151 #define SECTION_CONTEXT_SET_LMA (1 << 5) /* Set the sections' LMA address. */
152 #define SECTION_CONTEXT_ALTER_LMA (1 << 6) /* Increment or decrement the section's LMA address. */
153 #define SECTION_CONTEXT_SET_FLAGS (1 << 7) /* Set the section's flags. */
154 #define SECTION_CONTEXT_REMOVE_RELOCS (1 << 8) /* Remove relocations for this section. */
155 #define SECTION_CONTEXT_SET_ALIGNMENT (1 << 9) /* Set alignment for section. */
157 bfd_vma vma_val
; /* Amount to change by or set to. */
158 bfd_vma lma_val
; /* Amount to change by or set to. */
159 flagword flags
; /* What to set the section flags to. */
160 unsigned int alignment
; /* Alignment of output section. */
163 static struct section_list
*change_sections
;
165 /* TRUE if some sections are to be removed. */
166 static bool sections_removed
;
168 /* TRUE if only some sections are to be copied. */
169 static bool sections_copied
;
171 /* Changes to the start address. */
172 static bfd_vma change_start
= 0;
173 static bool set_start_set
= false;
174 static bfd_vma set_start
;
176 /* Changes to section addresses. */
177 static bfd_vma change_section_address
= 0;
179 /* Filling gaps between sections. */
180 static bool gap_fill_set
= false;
181 static bfd_byte gap_fill
= 0;
183 /* Pad to a given address. */
184 static bool pad_to_set
= false;
185 static bfd_vma pad_to
;
187 /* Use alternative machine code? */
188 static unsigned long use_alt_mach_code
= 0;
190 /* Output BFD flags user wants to set or clear */
191 static flagword bfd_flags_to_set
;
192 static flagword bfd_flags_to_clear
;
194 /* List of sections to add. */
197 /* Next section to add. */
198 struct section_add
*next
;
199 /* Name of section to add. */
201 /* Name of file holding section contents. */
202 const char *filename
;
205 /* Contents of file. */
207 /* BFD section, after it has been added. */
211 /* List of sections to add to the output BFD. */
212 static struct section_add
*add_sections
;
214 /* List of sections to update in the output BFD. */
215 static struct section_add
*update_sections
;
217 /* List of sections to dump from the output BFD. */
218 static struct section_add
*dump_sections
;
220 /* If non-NULL the argument to --add-gnu-debuglink.
221 This should be the filename to store in the .gnu_debuglink section. */
222 static const char * gnu_debuglink_filename
= NULL
;
224 /* Whether to convert debugging information. */
225 static bool convert_debugging
= false;
227 /* Whether to compress/decompress DWARF debug sections. */
232 compress_zlib
= compress
| 1 << 1,
233 compress_gnu_zlib
= compress
| 1 << 2,
234 compress_gabi_zlib
= compress
| 1 << 3,
235 compress_zstd
= compress
| 1 << 4,
237 } do_debug_sections
= nothing
;
239 /* Whether to generate ELF common symbols with the STT_COMMON type. */
240 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
242 /* Whether to change the leading character in symbol names. */
243 static bool change_leading_char
= false;
245 /* Whether to remove the leading character from global symbol names. */
246 static bool remove_leading_char
= false;
248 /* Whether to permit wildcard in symbol comparison. */
249 static bool wildcard
= false;
251 /* True if --localize-hidden is in effect. */
252 static bool localize_hidden
= false;
254 /* List of symbols to strip, keep, localize, keep-global, weaken,
256 static htab_t strip_specific_htab
= NULL
;
257 static htab_t strip_unneeded_htab
= NULL
;
258 static htab_t keep_specific_htab
= NULL
;
259 static htab_t localize_specific_htab
= NULL
;
260 static htab_t globalize_specific_htab
= NULL
;
261 static htab_t keepglobal_specific_htab
= NULL
;
262 static htab_t weaken_specific_htab
= NULL
;
263 static htab_t redefine_specific_htab
= NULL
;
264 static htab_t redefine_specific_reverse_htab
= NULL
;
265 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
266 static int add_symbols
= 0;
268 static char *strip_specific_buffer
= NULL
;
269 static char *strip_unneeded_buffer
= NULL
;
270 static char *keep_specific_buffer
= NULL
;
271 static char *localize_specific_buffer
= NULL
;
272 static char *globalize_specific_buffer
= NULL
;
273 static char *keepglobal_specific_buffer
= NULL
;
274 static char *weaken_specific_buffer
= NULL
;
276 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
277 static bool weaken
= false;
279 /* If this is TRUE, we retain BSF_FILE symbols. */
280 static bool keep_file_symbols
= false;
282 /* Prefix symbols/sections. */
283 static char *prefix_symbols_string
= 0;
284 static char *prefix_sections_string
= 0;
285 static char *prefix_alloc_sections_string
= 0;
287 /* True if --extract-symbol was passed on the command line. */
288 static bool extract_symbol
= false;
290 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
291 of <reverse_bytes> bytes within each output section. */
292 static int reverse_bytes
= 0;
294 /* For Coff objects, we may want to allow or disallow long section names,
295 or preserve them where found in the inputs. Debug info relies on them. */
296 enum long_section_name_handling
303 /* The default long section handling mode is to preserve them.
304 This is also the only behaviour for 'strip'. */
305 static enum long_section_name_handling long_section_names
= KEEP
;
307 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
308 enum command_line_switch
310 OPTION_ADD_SECTION
=150,
311 OPTION_ADD_GNU_DEBUGLINK
,
313 OPTION_ALT_MACH_CODE
,
314 OPTION_CHANGE_ADDRESSES
,
315 OPTION_CHANGE_LEADING_CHAR
,
316 OPTION_CHANGE_SECTION_ADDRESS
,
317 OPTION_CHANGE_SECTION_LMA
,
318 OPTION_CHANGE_SECTION_VMA
,
320 OPTION_CHANGE_WARNINGS
,
321 OPTION_COMPRESS_DEBUG_SECTIONS
,
323 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
325 OPTION_ELF_STT_COMMON
,
327 OPTION_EXTRACT_SYMBOL
,
328 OPTION_FILE_ALIGNMENT
,
331 OPTION_GLOBALIZE_SYMBOL
,
332 OPTION_GLOBALIZE_SYMBOLS
,
336 OPTION_INTERLEAVE_WIDTH
,
337 OPTION_KEEPGLOBAL_SYMBOLS
,
338 OPTION_KEEP_FILE_SYMBOLS
,
341 OPTION_KEEP_SECTION_SYMBOLS
,
342 OPTION_LOCALIZE_HIDDEN
,
343 OPTION_LOCALIZE_SYMBOLS
,
344 OPTION_LONG_SECTION_NAMES
,
346 OPTION_NO_MERGE_NOTES
,
347 OPTION_NO_CHANGE_WARNINGS
,
348 OPTION_ONLY_KEEP_DEBUG
,
350 OPTION_PREFIX_ALLOC_SECTIONS
,
351 OPTION_PREFIX_SECTIONS
,
352 OPTION_PREFIX_SYMBOLS
,
354 OPTION_READONLY_TEXT
,
356 OPTION_REDEFINE_SYMS
,
357 OPTION_REMOVE_LEADING_CHAR
,
358 OPTION_REMOVE_RELOCS
,
359 OPTION_RENAME_SECTION
,
360 OPTION_REVERSE_BYTES
,
361 OPTION_PE_SECTION_ALIGNMENT
,
362 OPTION_SET_SECTION_FLAGS
,
363 OPTION_SET_SECTION_ALIGNMENT
,
369 OPTION_STRIP_SYMBOLS
,
370 OPTION_STRIP_UNNEEDED
,
371 OPTION_STRIP_UNNEEDED_SYMBOL
,
372 OPTION_STRIP_UNNEEDED_SYMBOLS
,
374 OPTION_UPDATE_SECTION
,
375 OPTION_VERILOG_DATA_WIDTH
,
377 OPTION_WEAKEN_SYMBOLS
,
381 /* Options to handle if running as "strip". */
383 static struct option strip_options
[] =
385 {"disable-deterministic-archives", no_argument
, 0, 'U'},
386 {"discard-all", no_argument
, 0, 'x'},
387 {"discard-locals", no_argument
, 0, 'X'},
388 {"enable-deterministic-archives", no_argument
, 0, 'D'},
389 {"format", required_argument
, 0, 'F'}, /* Obsolete */
390 {"help", no_argument
, 0, 'h'},
391 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
392 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
393 {"input-target", required_argument
, 0, 'I'},
394 {"keep-section-symbols", no_argument
, 0, OPTION_KEEP_SECTION_SYMBOLS
},
395 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
396 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
397 {"keep-symbol", required_argument
, 0, 'K'},
398 {"merge-notes", no_argument
, 0, 'M'},
399 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
400 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
401 {"output-file", required_argument
, 0, 'o'},
402 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
403 {"output-target", required_argument
, 0, 'O'},
404 {"preserve-dates", no_argument
, 0, 'p'},
405 {"remove-section", required_argument
, 0, 'R'},
406 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
407 {"strip-all", no_argument
, 0, 's'},
408 {"strip-debug", no_argument
, 0, 'S'},
409 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
410 {"strip-symbol", required_argument
, 0, 'N'},
411 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
412 {"target", required_argument
, 0, 'F'},
413 {"verbose", no_argument
, 0, 'v'},
414 {"version", no_argument
, 0, 'V'},
415 {"wildcard", no_argument
, 0, 'w'},
416 {0, no_argument
, 0, 0}
419 /* Options to handle if running as "objcopy". */
421 static struct option copy_options
[] =
423 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
424 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
425 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
426 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
427 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
428 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
429 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
430 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
431 {"binary-architecture", required_argument
, 0, 'B'},
432 {"byte", required_argument
, 0, 'b'},
433 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
434 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
435 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
436 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
437 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
438 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
439 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
440 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
441 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
442 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
443 {"disable-deterministic-archives", no_argument
, 0, 'U'},
444 {"discard-all", no_argument
, 0, 'x'},
445 {"discard-locals", no_argument
, 0, 'X'},
446 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
447 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
448 {"enable-deterministic-archives", no_argument
, 0, 'D'},
449 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
450 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
451 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
452 {"format", required_argument
, 0, 'F'}, /* Obsolete */
453 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
454 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
455 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
456 {"heap", required_argument
, 0, OPTION_HEAP
},
457 {"help", no_argument
, 0, 'h'},
458 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
459 {"impure", no_argument
, 0, OPTION_IMPURE
},
460 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
461 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
462 {"input-target", required_argument
, 0, 'I'},
463 {"interleave", optional_argument
, 0, 'i'},
464 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
465 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
466 {"keep-global-symbol", required_argument
, 0, 'G'},
467 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
468 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
469 {"keep-symbol", required_argument
, 0, 'K'},
470 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
471 {"keep-section-symbols", required_argument
, 0, OPTION_KEEP_SECTION_SYMBOLS
},
472 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
473 {"localize-symbol", required_argument
, 0, 'L'},
474 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
475 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
476 {"merge-notes", no_argument
, 0, 'M'},
477 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
478 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
479 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
480 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
481 {"only-section", required_argument
, 0, 'j'},
482 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
483 {"output-target", required_argument
, 0, 'O'},
484 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
485 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
486 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
487 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
488 {"preserve-dates", no_argument
, 0, 'p'},
489 {"pure", no_argument
, 0, OPTION_PURE
},
490 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
491 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
492 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
493 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
494 {"remove-section", required_argument
, 0, 'R'},
495 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
496 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
497 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
498 {"section-alignment", required_argument
, 0, OPTION_PE_SECTION_ALIGNMENT
},
499 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
500 {"set-section-alignment", required_argument
, 0, OPTION_SET_SECTION_ALIGNMENT
},
501 {"set-start", required_argument
, 0, OPTION_SET_START
},
502 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
503 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
504 {"stack", required_argument
, 0, OPTION_STACK
},
505 {"strip-all", no_argument
, 0, 'S'},
506 {"strip-debug", no_argument
, 0, 'g'},
507 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
508 {"strip-symbol", required_argument
, 0, 'N'},
509 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
510 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
511 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
512 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
513 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
514 {"target", required_argument
, 0, 'F'},
515 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
516 {"verbose", no_argument
, 0, 'v'},
517 {"verilog-data-width", required_argument
, 0, OPTION_VERILOG_DATA_WIDTH
},
518 {"version", no_argument
, 0, 'V'},
519 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
520 {"weaken-symbol", required_argument
, 0, 'W'},
521 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
522 {"wildcard", no_argument
, 0, 'w'},
523 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
524 {0, no_argument
, 0, 0}
528 extern char *program_name
;
530 /* This flag distinguishes between strip and objcopy:
531 1 means this is 'strip'; 0 means this is 'objcopy'.
532 -1 means if we should use argv[0] to decide. */
535 /* The maximum length of an S record. This variable is defined in srec.c
536 and can be modified by the --srec-len parameter. */
537 extern unsigned int _bfd_srec_len
;
539 /* Restrict the generation of Srecords to type S3 only.
540 This variable is defined in bfd/srec.c and can be toggled
541 on by the --srec-forceS3 command line switch. */
542 extern bool _bfd_srec_forceS3
;
544 /* Width of data in bytes for verilog output.
545 This variable is declared in bfd/verilog.c and can be modified by
546 the --verilog-data-width parameter. */
547 extern unsigned int VerilogDataWidth
;
549 /* Forward declarations. */
550 static void setup_section (bfd
*, asection
*, void *);
551 static void setup_bfd_headers (bfd
*, bfd
*);
552 static void copy_relocations_in_section (bfd
*, asection
*, void *);
553 static void copy_section (bfd
*, asection
*, void *);
554 static void get_sections (bfd
*, asection
*, void *);
555 static int compare_section_lma (const void *, const void *);
556 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
557 static bool write_debugging_info (bfd
*, void *, long *, asymbol
***);
558 static const char *lookup_sym_redefinition (const char *);
559 static const char *find_section_rename (const char *, flagword
*);
561 ATTRIBUTE_NORETURN
static void
562 copy_usage (FILE *stream
, int exit_status
)
564 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
565 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
566 fprintf (stream
, _(" The options are:\n"));
567 fprintf (stream
, _("\
568 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
569 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
570 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
571 -F --target <bfdname> Set both input and output format to <bfdname>\n\
572 --debugging Convert debugging information, if possible\n\
573 -p --preserve-dates Copy modified/access timestamps to the output\n"));
574 if (DEFAULT_AR_DETERMINISTIC
)
575 fprintf (stream
, _("\
576 -D --enable-deterministic-archives\n\
577 Produce deterministic output when stripping archives (default)\n\
578 -U --disable-deterministic-archives\n\
579 Disable -D behavior\n"));
581 fprintf (stream
, _("\
582 -D --enable-deterministic-archives\n\
583 Produce deterministic output when stripping archives\n\
584 -U --disable-deterministic-archives\n\
585 Disable -D behavior (default)\n"));
586 fprintf (stream
, _("\
587 -j --only-section <name> Only copy section <name> into the output\n\
588 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
589 -R --remove-section <name> Remove section <name> from the output\n\
590 --remove-relocations <name> Remove relocations from section <name>\n\
591 -S --strip-all Remove all symbol and relocation information\n\
592 -g --strip-debug Remove all debugging symbols & sections\n\
593 --strip-dwo Remove all DWO sections\n\
594 --strip-unneeded Remove all symbols not needed by relocations\n\
595 -N --strip-symbol <name> Do not copy symbol <name>\n\
596 --strip-unneeded-symbol <name>\n\
597 Do not copy symbol <name> unless needed by\n\
599 --only-keep-debug Strip everything but the debug information\n\
600 --extract-dwo Copy only DWO sections\n\
601 --extract-symbol Remove section contents but keep symbols\n\
602 --keep-section <name> Do not strip section <name>\n\
603 -K --keep-symbol <name> Do not strip symbol <name>\n\
604 --keep-section-symbols Do not strip section symbols\n\
605 --keep-file-symbols Do not strip file symbol(s)\n\
606 --localize-hidden Turn all ELF hidden symbols into locals\n\
607 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
608 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
609 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
610 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
611 --weaken Force all global symbols to be marked as weak\n\
612 -w --wildcard Permit wildcard in symbol comparison\n\
613 -x --discard-all Remove all non-global symbols\n\
614 -X --discard-locals Remove any compiler-generated symbols\n\
615 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
616 --interleave-width <number> Set N for --interleave\n\
617 -b --byte <num> Select byte <num> in every interleaved block\n\
618 --gap-fill <val> Fill gaps between sections with <val>\n\
619 --pad-to <addr> Pad the last section up to address <addr>\n\
620 --set-start <addr> Set the start address to <addr>\n\
621 {--change-start|--adjust-start} <incr>\n\
622 Add <incr> to the start address\n\
623 {--change-addresses|--adjust-vma} <incr>\n\
624 Add <incr> to LMA, VMA and start addresses\n\
625 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
626 Change LMA and VMA of section <name> by <val>\n\
627 --change-section-lma <name>{=|+|-}<val>\n\
628 Change the LMA of section <name> by <val>\n\
629 --change-section-vma <name>{=|+|-}<val>\n\
630 Change the VMA of section <name> by <val>\n\
631 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
632 Warn if a named section does not exist\n\
633 --set-section-flags <name>=<flags>\n\
634 Set section <name>'s properties to <flags>\n\
635 --set-section-alignment <name>=<align>\n\
636 Set section <name>'s alignment to <align> bytes\n\
637 --add-section <name>=<file> Add section <name> found in <file> to output\n\
638 --update-section <name>=<file>\n\
639 Update contents of section <name> with\n\
640 contents found in <file>\n\
641 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
642 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
643 --long-section-names {enable|disable|keep}\n\
644 Handle long section names in Coff objects.\n\
645 --change-leading-char Force output format's leading character style\n\
646 --remove-leading-char Remove leading character from global symbols\n\
647 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
648 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
649 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
651 --srec-len <number> Restrict the length of generated Srecords\n\
652 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
653 --strip-symbols <file> -N for all symbols listed in <file>\n\
654 --strip-unneeded-symbols <file>\n\
655 --strip-unneeded-symbol for all symbols listed\n\
657 --keep-symbols <file> -K for all symbols listed in <file>\n\
658 --localize-symbols <file> -L for all symbols listed in <file>\n\
659 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
660 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
661 --weaken-symbols <file> -W for all symbols listed in <file>\n\
662 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
663 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
664 --writable-text Mark the output text as writable\n\
665 --readonly-text Make the output text write protected\n\
666 --pure Mark the output file as demand paged\n\
667 --impure Mark the output file as impure\n\
668 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
669 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
670 --prefix-alloc-sections <prefix>\n\
671 Add <prefix> to start of every allocatable\n\
673 --file-alignment <num> Set PE file alignment to <num>\n\
674 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
676 --image-base <address> Set PE image base to <address>\n\
677 --section-alignment <num> Set PE section alignment to <num>\n\
678 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
680 --subsystem <name>[:<version>]\n\
681 Set PE subsystem to <name> [& <version>]\n\
682 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi|zstd}]\n\
683 Compress DWARF debug sections\n\
684 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
685 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
687 --verilog-data-width <number> Specifies data width, in bytes, for verilog output\n\
688 -M --merge-notes Remove redundant entries in note sections\n\
689 --no-merge-notes Do not attempt to remove redundant notes (default)\n\
690 -v --verbose List all object files modified\n\
691 @<file> Read options from <file>\n\
692 -V --version Display this program's version number\n\
693 -h --help Display this output\n\
694 --info List object formats & architectures supported\n\
696 list_supported_targets (program_name
, stream
);
697 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
698 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
702 ATTRIBUTE_NORETURN
static void
703 strip_usage (FILE *stream
, int exit_status
)
705 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
706 fprintf (stream
, _(" Removes symbols and sections from files\n"));
707 fprintf (stream
, _(" The options are:\n"));
708 fprintf (stream
, _("\
709 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
710 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
711 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
712 -p --preserve-dates Copy modified/access timestamps to the output\n\
714 if (DEFAULT_AR_DETERMINISTIC
)
715 fprintf (stream
, _("\
716 -D --enable-deterministic-archives\n\
717 Produce deterministic output when stripping archives (default)\n\
718 -U --disable-deterministic-archives\n\
719 Disable -D behavior\n"));
721 fprintf (stream
, _("\
722 -D --enable-deterministic-archives\n\
723 Produce deterministic output when stripping archives\n\
724 -U --disable-deterministic-archives\n\
725 Disable -D behavior (default)\n"));
726 fprintf (stream
, _("\
727 -R --remove-section=<name> Also remove section <name> from the output\n\
728 --remove-relocations <name> Remove relocations from section <name>\n\
729 -s --strip-all Remove all symbol and relocation information\n\
730 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
731 --strip-dwo Remove all DWO sections\n\
732 --strip-unneeded Remove all symbols not needed by relocations\n\
733 --only-keep-debug Strip everything but the debug information\n\
734 -M --merge-notes Remove redundant entries in note sections (default)\n\
735 --no-merge-notes Do not attempt to remove redundant notes\n\
736 -N --strip-symbol=<name> Do not copy symbol <name>\n\
737 --keep-section=<name> Do not strip section <name>\n\
738 -K --keep-symbol=<name> Do not strip symbol <name>\n\
739 --keep-section-symbols Do not strip section symbols\n\
740 --keep-file-symbols Do not strip file symbol(s)\n\
741 -w --wildcard Permit wildcard in symbol comparison\n\
742 -x --discard-all Remove all non-global symbols\n\
743 -X --discard-locals Remove any compiler-generated symbols\n\
744 -v --verbose List all object files modified\n\
745 -V --version Display this program's version number\n\
746 -h --help Display this output\n\
747 --info List object formats & architectures supported\n\
748 -o <file> Place stripped output into <file>\n\
751 list_supported_targets (program_name
, stream
);
752 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
753 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
757 /* Parse section flags into a flagword, with a fatal error if the
758 string can't be parsed. */
761 parse_flags (const char *s
)
771 snext
= strchr (s
, ',');
781 #define PARSE_FLAG(fname,fval) \
782 else if (strncasecmp (fname, s, len) == 0) ret |= fval
783 PARSE_FLAG ("alloc", SEC_ALLOC
);
784 PARSE_FLAG ("load", SEC_LOAD
);
785 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
786 PARSE_FLAG ("readonly", SEC_READONLY
);
787 PARSE_FLAG ("debug", SEC_DEBUGGING
);
788 PARSE_FLAG ("code", SEC_CODE
);
789 PARSE_FLAG ("data", SEC_DATA
);
790 PARSE_FLAG ("rom", SEC_ROM
);
791 PARSE_FLAG ("exclude", SEC_EXCLUDE
);
792 PARSE_FLAG ("share", SEC_COFF_SHARED
);
793 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
794 PARSE_FLAG ("merge", SEC_MERGE
);
795 PARSE_FLAG ("strings", SEC_STRINGS
);
801 copy
= (char *) xmalloc (len
+ 1);
802 strncpy (copy
, s
, len
);
804 non_fatal (_("unrecognized section flag `%s'"), copy
);
805 fatal (_("supported flags: %s"),
806 "alloc, load, noload, readonly, debug, code, data, rom, exclude, share, contents, merge, strings");
816 /* Parse symbol flags into a flagword, with a fatal error if the
817 string can't be parsed. */
820 parse_symflags (const char *s
, const char **other
)
830 snext
= strchr (s
, ',');
839 #define PARSE_FLAG(fname, fval) \
840 else if (len == sizeof fname - 1 \
841 && strncasecmp (fname, s, len) == 0) \
844 #define PARSE_OTHER(fname, fval) \
845 else if (len >= sizeof fname \
846 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
847 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
850 PARSE_FLAG ("local", BSF_LOCAL
);
851 PARSE_FLAG ("global", BSF_GLOBAL
);
852 PARSE_FLAG ("export", BSF_EXPORT
);
853 PARSE_FLAG ("debug", BSF_DEBUGGING
);
854 PARSE_FLAG ("function", BSF_FUNCTION
);
855 PARSE_FLAG ("weak", BSF_WEAK
);
856 PARSE_FLAG ("section", BSF_SECTION_SYM
);
857 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
858 PARSE_FLAG ("warning", BSF_WARNING
);
859 PARSE_FLAG ("indirect", BSF_INDIRECT
);
860 PARSE_FLAG ("file", BSF_FILE
);
861 PARSE_FLAG ("object", BSF_OBJECT
);
862 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
863 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
864 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
865 PARSE_OTHER ("before=", *other
);
873 copy
= (char *) xmalloc (len
+ 1);
874 strncpy (copy
, s
, len
);
876 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
877 fatal (_("supported flags: %s"),
878 "local, global, export, debug, function, weak, section, "
879 "constructor, warning, indirect, file, object, synthetic, "
880 "indirect-function, unique-object, before=<othersym>");
890 /* Find and optionally add an entry in the change_sections list.
892 We need to be careful in how we match section names because of the support
893 for wildcard characters. For example suppose that the user has invoked
896 --set-section-flags .debug_*=debug
897 --set-section-flags .debug_str=readonly,debug
898 --change-section-address .debug_*ranges=0x1000
900 With the idea that all debug sections will receive the DEBUG flag, the
901 .debug_str section will also receive the READONLY flag and the
902 .debug_ranges and .debug_aranges sections will have their address set to
903 0x1000. (This may not make much sense, but it is just an example).
905 When adding the section name patterns to the section list we need to make
906 sure that previous entries do not match with the new entry, unless the
907 match is exact. (In which case we assume that the user is overriding
908 the previous entry with the new context).
910 When matching real section names to the section list we make use of the
911 wildcard characters, but we must do so in context. Eg if we are setting
912 section addresses then we match for .debug_ranges but not for .debug_info.
914 Finally, if ADD is false and we do find a match, we mark the section list
917 static struct section_list
*
918 find_section_list (const char *name
, bool add
, unsigned int context
)
920 struct section_list
*p
, *match
= NULL
;
922 /* assert ((context & ((1 << 7) - 1)) != 0); */
924 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
928 if (strcmp (p
->pattern
, name
) == 0)
930 /* Check for context conflicts. */
931 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
932 && (context
& SECTION_CONTEXT_COPY
))
933 || ((context
& SECTION_CONTEXT_REMOVE
)
934 && (p
->context
& SECTION_CONTEXT_COPY
)))
935 fatal (_("error: %s both copied and removed"), name
);
937 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
938 && (context
& SECTION_CONTEXT_ALTER_VMA
))
939 || ((context
& SECTION_CONTEXT_SET_VMA
)
940 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
941 fatal (_("error: %s both sets and alters VMA"), name
);
943 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
944 && (context
& SECTION_CONTEXT_ALTER_LMA
))
945 || ((context
& SECTION_CONTEXT_SET_LMA
)
946 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
947 fatal (_("error: %s both sets and alters LMA"), name
);
949 /* Extend the context. */
950 p
->context
|= context
;
954 /* If we are not adding a new name/pattern then
955 only check for a match if the context applies. */
956 else if (p
->context
& context
)
958 /* We could check for the presence of wildchar characters
959 first and choose between calling strcmp and fnmatch,
960 but is that really worth it ? */
961 if (p
->pattern
[0] == '!')
963 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
971 if (fnmatch (p
->pattern
, name
, 0) == 0)
987 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
990 p
->context
= context
;
995 p
->next
= change_sections
;
1001 /* S1 is the entry node already in the table, S2 is the key node. */
1004 eq_string_redefnode (const void *s1
, const void *s2
)
1006 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
1007 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
1008 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
1011 /* P is redefine node. Hash value is generated from its "source" filed. */
1014 htab_hash_redefnode (const void *p
)
1016 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
1017 return htab_hash_string (redefnode
->source
);
1020 /* Create hashtab used for redefine node. */
1023 create_symbol2redef_htab (void)
1025 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
1030 create_symbol_htab (void)
1032 return htab_create_alloc (16, htab_hash_string
, htab_eq_string
, NULL
,
1037 create_symbol_htabs (void)
1039 strip_specific_htab
= create_symbol_htab ();
1040 strip_unneeded_htab
= create_symbol_htab ();
1041 keep_specific_htab
= create_symbol_htab ();
1042 localize_specific_htab
= create_symbol_htab ();
1043 globalize_specific_htab
= create_symbol_htab ();
1044 keepglobal_specific_htab
= create_symbol_htab ();
1045 weaken_specific_htab
= create_symbol_htab ();
1046 redefine_specific_htab
= create_symbol2redef_htab ();
1047 /* As there is no bidirectional hash table in libiberty, need a reverse table
1048 to check duplicated target string. */
1049 redefine_specific_reverse_htab
= create_symbol_htab ();
1053 delete_symbol_htabs (void)
1055 htab_delete (strip_specific_htab
);
1056 htab_delete (strip_unneeded_htab
);
1057 htab_delete (keep_specific_htab
);
1058 htab_delete (localize_specific_htab
);
1059 htab_delete (globalize_specific_htab
);
1060 htab_delete (keepglobal_specific_htab
);
1061 htab_delete (weaken_specific_htab
);
1062 htab_delete (redefine_specific_htab
);
1063 htab_delete (redefine_specific_reverse_htab
);
1066 /* Add a symbol to strip_specific_list. */
1069 add_specific_symbol (const char *name
, htab_t htab
)
1071 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1074 /* Like add_specific_symbol, but the element type is void *. */
1077 add_specific_symbol_node (const void *node
, htab_t htab
)
1079 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1082 /* Add symbols listed in `filename' to strip_specific_list. */
1084 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1085 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1088 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1094 unsigned int line_count
;
1096 size
= get_file_size (filename
);
1103 buffer
= (char *) xmalloc (size
+ 2);
1104 f
= fopen (filename
, FOPEN_RT
);
1106 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1108 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1109 fatal (_("%s: fread failed"), filename
);
1112 buffer
[size
] = '\n';
1113 buffer
[size
+ 1] = '\0';
1117 for (line
= buffer
; * line
!= '\0'; line
++)
1122 int finished
= false;
1124 for (eol
= line
;; eol
++)
1130 /* Cope with \n\r. */
1138 /* Cope with \r\n. */
1149 /* Line comment, Terminate the line here, in case a
1150 name is present and then allow the rest of the
1151 loop to find the real end of the line. */
1163 /* A name may now exist somewhere between 'line' and 'eol'.
1164 Strip off leading whitespace and trailing whitespace,
1165 then add it to the list. */
1166 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1168 for (name_end
= name
;
1169 (! IS_WHITESPACE (* name_end
))
1170 && (! IS_LINE_TERMINATOR (* name_end
));
1174 if (! IS_LINE_TERMINATOR (* name_end
))
1178 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1181 if (! IS_LINE_TERMINATOR (* extra
))
1182 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1183 filename
, line_count
);
1188 if (name_end
> name
)
1189 add_specific_symbol (name
, htab
);
1191 /* Advance line pointer to end of line. The 'eol ++' in the for
1192 loop above will then advance us to the start of the next line. */
1197 /* Do not free the buffer. Parts of it will have been referenced
1198 in the calls to add_specific_symbol. */
1202 /* See whether a symbol should be stripped or kept
1203 based on strip_specific_list and keep_symbols. */
1206 is_specified_symbol_predicate (void **slot
, void *data
)
1208 struct is_specified_symbol_predicate_data
*d
=
1209 (struct is_specified_symbol_predicate_data
*) data
;
1210 const char *slot_name
= (char *) *slot
;
1212 if (*slot_name
!= '!')
1214 if (! fnmatch (slot_name
, d
->name
, 0))
1217 /* Continue traversal, there might be a non-match rule. */
1223 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1226 /* Stop traversal. */
1231 /* Continue traversal. */
1236 is_specified_symbol (const char *name
, htab_t htab
)
1240 struct is_specified_symbol_predicate_data data
;
1245 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1250 return htab_find (htab
, name
) != NULL
;
1253 /* Return a pointer to the symbol used as a signature for GROUP. */
1256 group_signature (asection
*group
)
1258 bfd
*abfd
= group
->owner
;
1259 Elf_Internal_Shdr
*ghdr
;
1261 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1265 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1268 ghdr
= &elf_section_data (group
)->this_hdr
;
1269 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1271 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1272 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1274 if (ghdr
->sh_info
> 0
1275 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1276 return isympp
[ghdr
->sh_info
- 1];
1281 /* Return TRUE if the section is a DWO section. */
1284 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1289 if (sec
== NULL
|| (name
= bfd_section_name (sec
)) == NULL
)
1292 len
= strlen (name
);
1296 return startswith (name
+ len
- 4, ".dwo");
1299 /* Return TRUE if section SEC is in the update list. */
1302 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1304 if (update_sections
!= NULL
)
1306 struct section_add
*pupdate
;
1308 for (pupdate
= update_sections
;
1310 pupdate
= pupdate
->next
)
1312 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1321 is_mergeable_note_section (bfd
* abfd
, asection
* sec
)
1324 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1325 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1326 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1327 We should add support for more note types. */
1328 && (startswith (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
)))
1334 /* See if a non-group section is being removed. */
1337 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1339 if (find_section_list (bfd_section_name (sec
), false, SECTION_CONTEXT_KEEP
)
1343 if (sections_removed
|| sections_copied
)
1345 struct section_list
*p
;
1346 struct section_list
*q
;
1348 p
= find_section_list (bfd_section_name (sec
), false,
1349 SECTION_CONTEXT_REMOVE
);
1350 q
= find_section_list (bfd_section_name (sec
), false,
1351 SECTION_CONTEXT_COPY
);
1354 fatal (_("error: section %s matches both remove and copy options"),
1355 bfd_section_name (sec
));
1356 if (p
&& is_update_section (abfd
, sec
))
1357 fatal (_("error: section %s matches both update and remove options"),
1358 bfd_section_name (sec
));
1362 if (sections_copied
&& q
== NULL
)
1366 if ((bfd_section_flags (sec
) & SEC_DEBUGGING
) != 0)
1368 if (strip_symbols
== STRIP_DEBUG
1369 || strip_symbols
== STRIP_UNNEEDED
1370 || strip_symbols
== STRIP_ALL
1371 || discard_locals
== LOCALS_ALL
1372 || convert_debugging
)
1374 /* By default we don't want to strip .reloc section.
1375 This section has for pe-coff special meaning. See
1376 pe-dll.c file in ld, and peXXigen.c in bfd for details.
1377 Similarly we do not want to strip debuglink sections. */
1378 const char * kept_sections
[] =
1386 for (i
= ARRAY_SIZE (kept_sections
);i
--;)
1387 if (strcmp (bfd_section_name (sec
), kept_sections
[i
]) == 0)
1393 if (strip_symbols
== STRIP_DWO
)
1394 return is_dwo_section (abfd
, sec
);
1396 if (strip_symbols
== STRIP_NONDEBUG
)
1400 if (strip_symbols
== STRIP_NONDWO
)
1401 return !is_dwo_section (abfd
, sec
);
1406 /* See if a section is being removed. */
1409 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1411 if (is_strip_section_1 (abfd
, sec
))
1414 if ((bfd_section_flags (sec
) & SEC_GROUP
) != 0)
1418 asection
*elt
, *first
;
1420 gsym
= group_signature (sec
);
1421 /* Strip groups without a valid signature. */
1426 If we are going to strip the group signature symbol, then
1427 strip the group section too. */
1429 if ((strip_symbols
== STRIP_ALL
1430 && !is_specified_symbol (gname
, keep_specific_htab
))
1431 || is_specified_symbol (gname
, strip_specific_htab
))
1434 /* Remove the group section if all members are removed. */
1435 first
= elt
= elf_next_in_group (sec
);
1438 if (!is_strip_section_1 (abfd
, elt
))
1440 elt
= elf_next_in_group (elt
);
1452 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1454 /* Always keep ELF note sections. */
1455 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
1456 return elf_section_type (isection
) == SHT_NOTE
;
1458 /* Always keep the .buildid section for PE/COFF.
1460 Strictly, this should be written "always keep the section storing the debug
1461 directory", but that may be the .text section for objects produced by some
1462 tools, which it is not sensible to keep. */
1463 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
)
1464 return strcmp (bfd_section_name (isection
), ".buildid") == 0;
1469 /* Return true if SYM is a hidden symbol. */
1472 is_hidden_symbol (asymbol
*sym
)
1474 elf_symbol_type
*elf_sym
;
1476 elf_sym
= elf_symbol_from (sym
);
1477 if (elf_sym
!= NULL
)
1478 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1487 /* Empty name is hopefully never a valid symbol name. */
1488 static const char * empty_name
= "";
1491 need_sym_before (struct addsym_node
**node
, const char *sym
)
1494 struct addsym_node
*ptr
= add_sym_list
;
1496 /* 'othersym' symbols are at the front of the list. */
1497 for (count
= 0; count
< add_symbols
; count
++)
1501 if (ptr
->othersym
== empty_name
)
1503 else if (strcmp (ptr
->othersym
, sym
) == 0)
1505 free ((char *) ptr
->othersym
);
1506 ptr
->othersym
= empty_name
;
1516 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1518 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1520 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1521 sym
->value
= ptr
->symval
;
1522 sym
->flags
= ptr
->flags
;
1525 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1527 fatal (_("Section %s not found"), ptr
->section
);
1531 sym
->section
= bfd_abs_section_ptr
;
1535 /* Choose which symbol entries to copy; put the result in OSYMS.
1536 We don't copy in place, because that confuses the relocs.
1537 Return the number of symbols to print. */
1540 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1541 asymbol
**isyms
, long symcount
)
1543 asymbol
**from
= isyms
, **to
= osyms
;
1544 long src_count
= 0, dst_count
= 0;
1545 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1547 for (; src_count
< symcount
; src_count
++)
1549 asymbol
*sym
= from
[src_count
];
1550 flagword flags
= sym
->flags
;
1551 char *name
= (char *) bfd_asymbol_name (sym
);
1553 bool used_in_reloc
= false;
1555 bool rem_leading_char
;
1556 bool add_leading_char
;
1558 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1562 struct addsym_node
*ptr
;
1564 if (need_sym_before (&ptr
, name
))
1565 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1568 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1575 && strcmp (name
+ (name
[2] == '_'), "__gnu_lto_slim") == 0)
1577 fatal (_("redefining symbols does not work on LTO-compiled object files"));
1580 new_name
= (char *) lookup_sym_redefinition (name
);
1581 if (new_name
== name
1582 && (flags
& BSF_SECTION_SYM
) != 0)
1583 new_name
= (char *) find_section_rename (name
, NULL
);
1584 bfd_set_asymbol_name (sym
, new_name
);
1588 /* Check if we will remove the current leading character. */
1591 && name
[0] == bfd_get_symbol_leading_char (abfd
)
1592 && (change_leading_char
1593 || (remove_leading_char
1594 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1596 || bfd_is_com_section (bfd_asymbol_section (sym
))))));
1598 /* Check if we will add a new leading character. */
1601 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1602 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1603 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1605 /* Short circuit for change_leading_char if we can do it in-place. */
1606 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1608 name
[0] = bfd_get_symbol_leading_char (obfd
);
1609 bfd_set_asymbol_name (sym
, name
);
1610 rem_leading_char
= false;
1611 add_leading_char
= false;
1614 /* Remove leading char. */
1615 if (rem_leading_char
)
1616 bfd_set_asymbol_name (sym
, ++name
);
1618 /* Add new leading char and/or prefix. */
1619 if (add_leading_char
|| prefix_symbols_string
)
1622 size_t len
= strlen (name
) + 1;
1624 if (add_leading_char
)
1626 if (prefix_symbols_string
)
1627 len
+= strlen (prefix_symbols_string
);
1629 ptr
= n
= (char *) xmalloc (len
);
1630 if (add_leading_char
)
1631 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1633 if (prefix_symbols_string
)
1635 strcpy (ptr
, prefix_symbols_string
);
1636 ptr
+= strlen (prefix_symbols_string
);
1640 bfd_set_asymbol_name (sym
, n
);
1644 if (strip_symbols
== STRIP_ALL
)
1646 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1647 || ((flags
& BSF_SECTION_SYM
) != 0
1648 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1652 used_in_reloc
= true;
1654 else if (relocatable
/* Relocatable file. */
1655 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1656 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1658 else if (bfd_decode_symclass (sym
) == 'I')
1659 /* Global symbols in $idata sections need to be retained
1660 even if relocatable is FALSE. External users of the
1661 library containing the $idata section may reference these
1664 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1665 || (flags
& BSF_WEAK
) != 0
1667 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1668 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1669 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1670 keep
= (strip_symbols
!= STRIP_DEBUG
1671 && strip_symbols
!= STRIP_UNNEEDED
1672 && ! convert_debugging
);
1673 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1674 /* COMDAT sections store special information in local
1675 symbols, so we cannot risk stripping any of them. */
1677 else /* Local symbol. */
1678 keep
= (strip_symbols
!= STRIP_UNNEEDED
1679 && (discard_locals
!= LOCALS_ALL
1680 && (discard_locals
!= LOCALS_START_L
1681 || ! bfd_is_local_label (abfd
, sym
))));
1683 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1685 /* There are multiple ways to set 'keep' above, but if it
1686 was the relocatable symbol case, then that's an error. */
1689 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1697 && !(flags
& BSF_KEEP
)
1698 && is_specified_symbol (name
, strip_unneeded_htab
))
1702 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1703 || is_specified_symbol (name
, keep_specific_htab
)))
1706 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1711 if (((flags
& (BSF_GLOBAL
| BSF_GNU_UNIQUE
))
1713 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1715 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_GNU_UNIQUE
);
1716 sym
->flags
|= BSF_WEAK
;
1720 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1721 && (is_specified_symbol (name
, localize_specific_htab
)
1722 || (htab_elements (keepglobal_specific_htab
) != 0
1723 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1724 || (localize_hidden
&& is_hidden_symbol (sym
))))
1726 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1727 sym
->flags
|= BSF_LOCAL
;
1731 && (flags
& BSF_LOCAL
)
1732 && is_specified_symbol (name
, globalize_specific_htab
))
1734 sym
->flags
&= ~ BSF_LOCAL
;
1735 sym
->flags
|= BSF_GLOBAL
;
1738 to
[dst_count
++] = sym
;
1743 struct addsym_node
*ptr
= add_sym_list
;
1745 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1749 if (ptr
->othersym
!= empty_name
)
1750 fatal (_("'before=%s' not found"), ptr
->othersym
);
1753 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1759 to
[dst_count
] = NULL
;
1764 /* Find the redefined name of symbol SOURCE. */
1767 lookup_sym_redefinition (const char *source
)
1769 struct redefine_node key_node
= {(char *) source
, NULL
};
1770 struct redefine_node
*redef_node
1771 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1773 return redef_node
== NULL
? source
: redef_node
->target
;
1776 /* Insert a node into symbol redefine hash tabel. */
1779 add_redefine_and_check (const char *cause
, const char *source
,
1782 struct redefine_node
*new_node
1783 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1785 new_node
->source
= strdup (source
);
1786 new_node
->target
= strdup (target
);
1788 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1789 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1792 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1793 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1796 /* Insert the NEW_NODE into hash table for quick search. */
1797 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1799 /* Insert the target string into the reverse hash table, this is needed for
1800 duplicated target string check. */
1801 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1805 /* Handle the --redefine-syms option. Read lines containing "old new"
1806 from the file, and add them to the symbol redefine list. */
1809 add_redefine_syms_file (const char *filename
)
1818 file
= fopen (filename
, "r");
1820 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1821 filename
, strerror (errno
));
1824 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1832 /* Collect the input symbol name. */
1833 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1841 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1849 /* Eat white space between the symbol names. */
1850 while (IS_WHITESPACE (c
))
1852 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1857 /* Collect the output symbol name. */
1859 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1867 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1875 /* Eat white space at end of line. */
1876 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1881 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1882 || c
== '\n' || c
== EOF
)
1885 /* Append the redefinition to the list. */
1887 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1898 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1900 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1901 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1904 /* Eat the rest of the line and finish it. */
1905 while (c
!= '\n' && c
!= EOF
)
1911 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1917 /* Copy unknown object file IBFD onto OBFD.
1918 Returns TRUE upon success, FALSE otherwise. */
1921 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1924 bfd_size_type tocopy
;
1928 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1930 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1937 non_fatal (_("stat returns negative size for `%s'"),
1938 bfd_get_archive_filename (ibfd
));
1942 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1944 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1949 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1950 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1952 cbuf
= (char *) xmalloc (BUFSIZE
);
1960 if (bfd_bread (cbuf
, tocopy
, ibfd
) != tocopy
)
1962 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1967 if (bfd_bwrite (cbuf
, tocopy
, obfd
) != tocopy
)
1969 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1977 /* We should at least to be able to read it back when copying an
1978 unknown object in an archive. */
1979 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1984 typedef struct objcopy_internal_note
1986 Elf_Internal_Note note
;
1987 unsigned long padded_namesz
;
1990 } objcopy_internal_note
;
1992 #define DEBUG_MERGE 0
1995 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1997 #define merge_debug(format, ...)
2000 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
2003 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
2004 objcopy_internal_note
* pnote2
)
2006 if (pnote1
->end
< pnote2
->start
)
2007 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
2008 Really we should extract the alignment of the section
2009 covered by the notes. */
2010 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
2012 if (pnote2
->end
< pnote2
->start
)
2013 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
2015 if (pnote1
->end
< pnote2
->end
)
2018 if (pnote2
->end
< pnote1
->end
)
2024 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
2027 contained_by (objcopy_internal_note
* needle
,
2028 objcopy_internal_note
* haystack
)
2030 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
2034 is_open_note (objcopy_internal_note
* pnote
)
2036 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2040 is_func_note (objcopy_internal_note
* pnote
)
2042 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2046 is_deleted_note (objcopy_internal_note
* pnote
)
2048 return pnote
->note
.type
== 0;
2052 is_version_note (objcopy_internal_note
* pnote
)
2054 return (pnote
->note
.namesz
> 4
2055 && pnote
->note
.namedata
[0] == 'G'
2056 && pnote
->note
.namedata
[1] == 'A'
2057 && pnote
->note
.namedata
[2] == '$'
2058 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2062 is_64bit (bfd
* abfd
)
2064 /* Should never happen, but let's be paranoid. */
2065 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2068 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2071 /* This sorting function is used to get the notes into an order
2072 that makes merging easy. */
2075 compare_gnu_build_notes (const void * data1
, const void * data2
)
2077 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2078 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2080 /* Sort notes based upon the attribute they record. */
2081 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2082 pnote2
->note
.namedata
+ 3,
2083 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2084 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2088 if (pnote1
->end
< pnote2
->start
)
2090 if (pnote1
->start
> pnote2
->end
)
2093 /* Overlaps - we should merge the two ranges. */
2094 if (pnote1
->start
< pnote2
->start
)
2096 if (pnote1
->end
> pnote2
->end
)
2098 if (pnote1
->end
< pnote2
->end
)
2101 /* Put OPEN notes before function notes. */
2102 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2104 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2110 /* This sorting function is used to get the notes into an order
2111 that makes eliminating address ranges easier. */
2114 sort_gnu_build_notes (const void * data1
, const void * data2
)
2116 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2117 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2119 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2121 /* Move deleted notes to the end. */
2122 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2125 /* Move OPEN notes to the start. */
2126 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2129 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2132 return 1; /* 1: F 2: O */
2135 /* Sort by starting address. */
2136 if (pnote1
->start
< pnote2
->start
)
2138 if (pnote1
->start
> pnote2
->start
)
2141 /* Then by end address (bigger range first). */
2142 if (pnote1
->end
> pnote2
->end
)
2144 if (pnote1
->end
< pnote2
->end
)
2147 /* Then by attribute type. */
2148 if (pnote1
->note
.namesz
> 4
2149 && pnote2
->note
.namesz
> 4
2150 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2151 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2156 /* Merge the notes on SEC, removing redundant entries.
2157 Returns the new, smaller size of the section upon success. */
2159 static bfd_size_type
2160 merge_gnu_build_notes (bfd
* abfd
,
2163 bfd_byte
* contents
)
2165 objcopy_internal_note
* pnotes_end
;
2166 objcopy_internal_note
* pnotes
= NULL
;
2167 objcopy_internal_note
* pnote
;
2168 bfd_size_type remain
= size
;
2169 unsigned version_1_seen
= 0;
2170 unsigned version_2_seen
= 0;
2171 unsigned version_3_seen
= 0;
2172 const char * err
= NULL
;
2173 bfd_byte
* in
= contents
;
2174 unsigned long previous_func_start
= 0;
2175 unsigned long previous_open_start
= 0;
2176 unsigned long previous_func_end
= 0;
2177 unsigned long previous_open_end
= 0;
2180 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2186 /* If there are relocs associated with this section then we
2187 cannot safely merge it. */
2188 relpp
= (arelent
**) xmalloc (relsize
);
2189 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2194 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2195 bfd_get_filename (abfd
), bfd_section_name (sec
));
2200 /* Make a copy of the notes and convert to our internal format.
2201 Minimum size of a note is 12 bytes. Also locate the version
2202 notes and check them. */
2203 pnote
= pnotes
= (objcopy_internal_note
*)
2204 xcalloc ((size
/ 12), sizeof (* pnote
));
2205 while (remain
>= 12)
2209 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2210 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2211 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2212 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2214 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2216 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2220 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2221 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2223 err
= _("corrupt GNU build attribute note: wrong note type");
2227 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2229 err
= _("corrupt GNU build attribute note: note too big");
2233 if (pnote
->note
.namesz
< 2)
2235 err
= _("corrupt GNU build attribute note: name too small");
2239 pnote
->note
.namedata
= (char *)(in
+ 12);
2240 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2242 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2243 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2245 if (pnote
->note
.namesz
> 2
2246 && pnote
->note
.namedata
[0] == '$'
2247 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2248 && pnote
->note
.namedata
[2] == '1')
2250 else if (is_version_note (pnote
))
2252 if (pnote
->note
.namedata
[4] == '2')
2254 else if (pnote
->note
.namedata
[4] == '3')
2258 err
= _("corrupt GNU build attribute note: unsupported version");
2263 switch (pnote
->note
.descsz
)
2270 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2271 /* FIXME: For version 1 and 2 notes we should try to
2272 calculate the end address by finding a symbol whose
2273 value is START, and then adding in its size.
2275 For now though, since v1 and v2 was not intended to
2276 handle gaps, we chose an artificially large end
2282 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2283 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2287 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2288 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2292 err
= _("corrupt GNU build attribute note: bad description size");
2297 /* This can happen with PPC64LE binaries where empty notes are
2298 encoded as start = end + 4. */
2301 if (is_open_note (pnote
))
2304 previous_open_start
= start
;
2306 pnote
->start
= previous_open_start
;
2309 previous_open_end
= end
;
2311 pnote
->end
= previous_open_end
;
2316 previous_func_start
= start
;
2318 pnote
->start
= previous_func_start
;
2321 previous_func_end
= end
;
2323 pnote
->end
= previous_func_end
;
2326 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2328 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2337 /* Check that the notes are valid. */
2340 err
= _("corrupt GNU build attribute notes: excess data at end");
2344 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2347 err
= _("bad GNU build attribute notes: no known versions detected");
2350 /* This happens with glibc. No idea why. */
2351 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2352 bfd_get_filename (abfd
), bfd_section_name (sec
));
2357 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2358 || (version_1_seen
> 0 && version_3_seen
> 0)
2359 || (version_2_seen
> 0 && version_3_seen
> 0))
2361 err
= _("bad GNU build attribute notes: multiple different versions");
2365 /* We are now only supporting the merging v3+ notes
2366 - it makes things much simpler. */
2367 if (version_3_seen
== 0)
2369 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2373 merge_debug ("Merging section %s which contains %ld notes\n",
2374 sec
->name
, pnotes_end
- pnotes
);
2376 /* Sort the notes. */
2377 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2378 compare_gnu_build_notes
);
2381 merge_debug ("Results of initial sort:\n");
2382 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2383 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2384 (pnote
->note
.namedata
- (char *) contents
) - 12,
2385 pnote
->start
, pnote
->end
,
2387 pnote
->note
.namedata
[3],
2392 /* Now merge the notes. The rules are:
2393 1. If a note has a zero range, it can be eliminated.
2394 2. If two notes have the same namedata then:
2395 2a. If one note's range is fully covered by the other note
2396 then it can be deleted.
2397 2b. If one note's range partially overlaps or adjoins the
2398 other note then if they are both of the same type (open
2399 or func) then they can be merged and one deleted. If
2400 they are of different types then they cannot be merged. */
2401 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2403 /* Skip already deleted notes.
2404 FIXME: Can this happen ? We are scanning forwards and
2405 deleting backwards after all. */
2406 if (is_deleted_note (pnote
))
2409 /* Rule 1 - delete 0-range notes. */
2410 if (pnote
->start
== pnote
->end
)
2412 merge_debug ("Delete note at offset %#08lx - empty range\n",
2413 (pnote
->note
.namedata
- (char *) contents
) - 12);
2414 pnote
->note
.type
= 0;
2419 objcopy_internal_note
* back
;
2421 /* Rule 2: Check to see if there is an identical previous note. */
2422 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2424 if (is_deleted_note (back
))
2427 /* Our sorting function should have placed all identically
2428 attributed notes together, so if we see a note of a different
2429 attribute type stop searching. */
2430 if (back
->note
.namesz
!= pnote
->note
.namesz
2431 || memcmp (back
->note
.namedata
,
2432 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2435 if (back
->start
== pnote
->start
2436 && back
->end
== pnote
->end
)
2438 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2439 (pnote
->note
.namedata
- (char *) contents
) - 12,
2440 (back
->note
.namedata
- (char *) contents
) - 12);
2441 pnote
->note
.type
= 0;
2446 if (contained_by (pnote
, back
))
2448 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2449 (pnote
->note
.namedata
- (char *) contents
) - 12,
2450 (back
->note
.namedata
- (char *) contents
) - 12);
2451 pnote
->note
.type
= 0;
2456 /* This should not happen as we have sorted the
2457 notes with earlier starting addresses first. */
2458 if (contained_by (back
, pnote
))
2459 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2463 if (overlaps_or_adjoins (back
, pnote
)
2464 && is_func_note (back
) == is_func_note (pnote
))
2466 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2467 (pnote
->note
.namedata
- (char *) contents
) - 12,
2468 (back
->note
.namedata
- (char *) contents
) - 12);
2470 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2471 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2472 pnote
->note
.type
= 0;
2476 /* Don't scan too far back however. */
2479 /* FIXME: Not sure if this can ever be triggered. */
2480 merge_debug ("ITERATION LIMIT REACHED\n");
2485 if (! is_deleted_note (pnote
))
2486 merge_debug ("Unable to do anything with note at %#08lx\n",
2487 (pnote
->note
.namedata
- (char *) contents
) - 12);
2491 /* Resort the notes. */
2492 merge_debug ("Final sorting of notes\n");
2493 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2495 /* Reconstruct the ELF notes. */
2496 bfd_byte
* new_contents
;
2499 bfd_size_type new_size
;
2500 bfd_vma prev_start
= 0;
2501 bfd_vma prev_end
= 0;
2503 /* Not sure how, but the notes might grow in size.
2504 (eg see PR 1774507). Allow for this here. */
2505 new = new_contents
= xmalloc (size
* 2);
2506 for (pnote
= pnotes
, old
= contents
;
2510 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2512 if (! is_deleted_note (pnote
))
2514 /* Create the note, potentially using the
2515 address range of the previous note. */
2516 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2518 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2519 bfd_put_32 (abfd
, 0, new + 4);
2520 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2522 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2523 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2524 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2525 new += pnote
->padded_namesz
;
2529 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2530 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2531 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2533 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2534 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2535 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2536 new += pnote
->padded_namesz
;
2537 if (is_64bit (abfd
))
2539 bfd_put_64 (abfd
, pnote
->start
, new);
2540 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2545 bfd_put_32 (abfd
, pnote
->start
, new);
2546 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2550 prev_start
= pnote
->start
;
2551 prev_end
= pnote
->end
;
2559 merge_debug ("Results of merge:\n");
2560 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2561 if (! is_deleted_note (pnote
))
2562 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2563 (pnote
->note
.namedata
- (char *) contents
) - 12,
2564 pnote
->start
, pnote
->end
,
2566 pnote
->note
.namedata
[3],
2571 new_size
= new - new_contents
;
2572 if (new_size
< size
)
2574 memcpy (contents
, new_contents
, new_size
);
2577 free (new_contents
);
2582 bfd_set_error (bfd_error_bad_value
);
2583 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2592 check_new_section_flags (flagword flags
, bfd
* abfd
, const char * secname
)
2594 /* Only set the SEC_COFF_SHARED flag on COFF files.
2595 The same bit value is used by ELF targets to indicate
2596 compressed sections, and setting that flag here breaks
2598 if ((flags
& SEC_COFF_SHARED
)
2599 && bfd_get_flavour (abfd
) != bfd_target_coff_flavour
)
2601 non_fatal (_("%s[%s]: Note - dropping 'share' flag as output format is not COFF"),
2602 bfd_get_filename (abfd
), secname
);
2603 flags
&= ~ SEC_COFF_SHARED
;
2608 /* Copy object file IBFD onto OBFD.
2609 Returns TRUE upon success, FALSE otherwise. */
2612 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2616 asection
**osections
= NULL
;
2618 asection
*gnu_debuglink_section
= NULL
;
2619 bfd_size_type
*gaps
= NULL
;
2620 bfd_size_type max_gap
= 0;
2623 enum bfd_architecture iarch
;
2625 unsigned int num_sec
, i
;
2627 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2628 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2629 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2631 /* PR 17636: Call non-fatal so that we return to our parent who
2632 may need to tidy temporary files. */
2633 non_fatal (_("unable to change endianness of '%s'"),
2634 bfd_get_archive_filename (ibfd
));
2638 if (ibfd
->read_only
)
2640 non_fatal (_("unable to modify '%s' due to errors"),
2641 bfd_get_archive_filename (ibfd
));
2645 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2647 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2651 if (ibfd
->sections
== NULL
)
2653 non_fatal (_("error: the input file '%s' has no sections"),
2654 bfd_get_archive_filename (ibfd
));
2658 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2660 if ((do_debug_sections
& compress
) != 0
2661 && do_debug_sections
!= compress
)
2663 non_fatal (_ ("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi|"
2664 "zstd] is unsupported on `%s'"),
2665 bfd_get_archive_filename (ibfd
));
2669 if (do_elf_stt_common
)
2671 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2672 bfd_get_archive_filename (ibfd
));
2678 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2679 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2680 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2689 start
= bfd_get_start_address (ibfd
);
2690 start
+= change_start
;
2693 /* Neither the start address nor the flags
2694 need to be set for a core file. */
2695 if (bfd_get_format (obfd
) != bfd_core
)
2699 flags
= bfd_get_file_flags (ibfd
);
2700 flags
|= bfd_flags_to_set
;
2701 flags
&= ~bfd_flags_to_clear
;
2702 flags
&= bfd_applicable_file_flags (obfd
);
2704 if (strip_symbols
== STRIP_ALL
)
2705 flags
&= ~HAS_RELOC
;
2707 if (!bfd_set_start_address (obfd
, start
)
2708 || !bfd_set_file_flags (obfd
, flags
))
2710 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2715 /* Copy architecture of input file to output file. */
2716 iarch
= bfd_get_arch (ibfd
);
2717 imach
= bfd_get_mach (ibfd
);
2720 if (iarch
== bfd_arch_unknown
)
2722 iarch
= input_arch
->arch
;
2723 imach
= input_arch
->mach
;
2726 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2727 bfd_get_archive_filename (ibfd
));
2729 if (iarch
== bfd_arch_unknown
2730 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2731 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2733 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2737 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2738 && (ibfd
->target_defaulted
2739 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2741 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2742 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2743 bfd_get_archive_filename (ibfd
));
2745 non_fatal (_("Output file cannot represent architecture `%s'"),
2746 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2747 bfd_get_mach (ibfd
)));
2751 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2753 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2757 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2758 && bfd_pei_p (obfd
))
2760 /* Set up PE parameters. */
2761 pe_data_type
*pe
= pe_data (obfd
);
2763 /* Copy PE parameters before changing them. */
2764 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2765 && bfd_pei_p (ibfd
))
2767 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2770 pe
->timestamp
= pe_data (ibfd
)->coff
.timestamp
;
2775 if (pe_file_alignment
!= (bfd_vma
) -1)
2776 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2778 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2780 if (pe_heap_commit
!= (bfd_vma
) -1)
2781 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2783 if (pe_heap_reserve
!= (bfd_vma
) -1)
2784 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2786 if (pe_image_base
!= (bfd_vma
) -1)
2787 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2789 if (pe_section_alignment
!= (bfd_vma
) -1)
2790 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2792 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2794 if (pe_stack_commit
!= (bfd_vma
) -1)
2795 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2797 if (pe_stack_reserve
!= (bfd_vma
) -1)
2798 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2800 if (pe_subsystem
!= -1)
2801 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2803 if (pe_major_subsystem_version
!= -1)
2804 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2806 if (pe_minor_subsystem_version
!= -1)
2807 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2809 if (pe_file_alignment
> pe_section_alignment
)
2811 non_fatal (_("warning: file alignment (0x%" PRIx64
2812 ") > section alignment (0x%" PRIx64
")"),
2813 (uint64_t) pe_file_alignment
,
2814 (uint64_t) pe_section_alignment
);
2820 if (osympp
!= isympp
)
2826 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2829 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2833 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2834 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2837 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2840 /* PR 17512: file: d6323821
2841 If the symbol table could not be loaded do not pretend that we have
2842 any symbols. This trips us up later on when we load the relocs. */
2846 osympp
= isympp
= NULL
;
2849 /* BFD mandates that all output sections be created and sizes set before
2850 any output is done. Thus, we traverse all sections multiple times. */
2851 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2853 if (!extract_symbol
)
2854 setup_bfd_headers (ibfd
, obfd
);
2856 if (add_sections
!= NULL
)
2858 struct section_add
*padd
;
2859 struct section_list
*pset
;
2861 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2865 pset
= find_section_list (padd
->name
, false,
2866 SECTION_CONTEXT_SET_FLAGS
);
2869 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2870 flags
= check_new_section_flags (flags
, obfd
, padd
->name
);
2873 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2875 /* bfd_make_section_with_flags() does not return very helpful
2876 error codes, so check for the most likely user error first. */
2877 if (bfd_get_section_by_name (obfd
, padd
->name
))
2879 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2880 _("can't add section '%s'"), padd
->name
);
2885 /* We use LINKER_CREATED here so that the backend hooks
2886 will create any special section type information,
2887 instead of presuming we know what we're doing merely
2888 because we set the flags. */
2889 padd
->section
= bfd_make_section_with_flags
2890 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2891 if (padd
->section
== NULL
)
2893 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2894 _("can't create section `%s'"),
2900 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2902 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2906 pset
= find_section_list (padd
->name
, false,
2907 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2909 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2911 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2915 pset
= find_section_list (padd
->name
, false,
2916 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2919 padd
->section
->lma
= pset
->lma_val
;
2921 if (!bfd_set_section_alignment
2922 (padd
->section
, bfd_section_alignment (padd
->section
)))
2924 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2931 if (update_sections
!= NULL
)
2933 struct section_add
*pupdate
;
2935 for (pupdate
= update_sections
;
2937 pupdate
= pupdate
->next
)
2939 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2940 if (pupdate
->section
== NULL
)
2942 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2946 osec
= pupdate
->section
->output_section
;
2947 if (!bfd_set_section_size (osec
, pupdate
->size
))
2949 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2955 merged_note_section
* merged_note_sections
= NULL
;
2958 /* This palaver is necessary because we must set the output
2959 section size first, before its contents are ready. */
2960 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2962 if (! is_mergeable_note_section (ibfd
, osec
))
2965 /* If the section is going to be completly deleted then
2966 do not bother to merge it. */
2967 if (osec
->output_section
== NULL
)
2970 bfd_size_type size
= bfd_section_size (osec
);
2973 /* This can happen, eg when stripping a binary for a second
2974 time. See BZ 2121365 for an example. */
2977 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2978 merged
->contents
= NULL
;
2979 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2981 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2982 _("warning: could not load note section"));
2987 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2990 /* FIXME: Once we have read the contents in, we must write
2991 them out again. So even if the mergeing has achieved
2992 nothing we still add this entry to the merge list. */
2994 if (size
!= merged
->size
2995 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2997 bfd_nonfatal_message (NULL
, obfd
, osec
,
2998 _("warning: failed to set merged notes size"));
2999 free (merged
->contents
);
3004 /* Add section to list of merged sections. */
3006 merged
->next
= merged_note_sections
;
3007 merged_note_sections
= merged
;
3011 if (dump_sections
!= NULL
)
3013 struct section_add
* pdump
;
3015 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
3020 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
3023 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3024 _("can't dump section '%s' - it does not exist"),
3029 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
3031 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3032 _("can't dump section - it has no contents"));
3036 bfd_size_type size
= bfd_section_size (osec
);
3037 /* Note - we allow the dumping of zero-sized sections,
3038 creating an empty file. */
3040 f
= fopen (pdump
->filename
, FOPEN_WB
);
3043 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3044 _("could not open section dump file"));
3048 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3050 if (size
!= 0 && fwrite (contents
, 1, size
, f
) != size
)
3052 non_fatal (_("error writing section contents to %s (error: %s)"),
3061 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3062 _("could not retrieve section contents"));
3069 if (gnu_debuglink_filename
!= NULL
)
3071 /* PR 15125: Give a helpful warning message if
3072 the debuglink section already exists, and
3073 allow the rest of the copy to complete. */
3074 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3076 non_fatal (_("%s: debuglink section already exists"),
3077 bfd_get_filename (ibfd
));
3078 gnu_debuglink_filename
= NULL
;
3082 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3083 (obfd
, gnu_debuglink_filename
);
3085 if (gnu_debuglink_section
== NULL
)
3087 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3088 _("cannot create debug link section `%s'"),
3089 gnu_debuglink_filename
);
3093 /* Special processing for PE format files. We
3094 have no way to distinguish PE from COFF here. */
3095 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3097 bfd_vma debuglink_vma
;
3098 asection
* highest_section
;
3100 /* The PE spec requires that all sections be adjacent and sorted
3101 in ascending order of VMA. It also specifies that debug
3102 sections should be last. This is despite the fact that debug
3103 sections are not loaded into memory and so in theory have no
3106 This means that the debuglink section must be given a non-zero
3107 VMA which makes it contiguous with other debug sections. So
3108 walk the current section list, find the section with the
3109 highest VMA and start the debuglink section after that one. */
3110 for (osec
= obfd
->sections
, highest_section
= NULL
;
3114 && (highest_section
== NULL
3115 || osec
->vma
> highest_section
->vma
))
3116 highest_section
= osec
;
3118 if (highest_section
)
3119 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3120 + highest_section
->size
,
3121 /* FIXME: We ought to be using
3122 COFF_PAGE_SIZE here or maybe
3123 bfd_section_alignment() (if it
3124 was set) but since this is for PE
3125 and we know the required alignment
3126 it is easier just to hard code it. */
3129 /* Umm, not sure what to do in this case. */
3130 debuglink_vma
= 0x1000;
3132 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3137 num_sec
= bfd_count_sections (obfd
);
3139 && (gap_fill_set
|| pad_to_set
))
3143 /* We must fill in gaps between the sections and/or we must pad
3144 the last section to a specified address. We do this by
3145 grabbing a list of the sections, sorting them by VMA, and
3146 increasing the section sizes as required to fill the gaps.
3147 We write out the gap contents below. */
3149 osections
= xmalloc (num_sec
* sizeof (*osections
));
3151 bfd_map_over_sections (obfd
, get_sections
, &set
);
3153 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3155 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3156 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3160 for (i
= 0; i
< num_sec
- 1; i
++)
3163 bfd_size_type size
; /* Octets. */
3164 bfd_vma gap_start
, gap_stop
; /* Octets. */
3165 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3166 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3168 flags
= bfd_section_flags (osections
[i
]);
3169 if ((flags
& SEC_HAS_CONTENTS
) == 0
3170 || (flags
& SEC_LOAD
) == 0)
3173 size
= bfd_section_size (osections
[i
]);
3174 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3175 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3176 if (gap_start
< gap_stop
)
3178 if (!bfd_set_section_size (osections
[i
],
3179 size
+ (gap_stop
- gap_start
)))
3181 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3182 _("Can't fill gap after section"));
3186 gaps
[i
] = gap_stop
- gap_start
;
3187 if (max_gap
< gap_stop
- gap_start
)
3188 max_gap
= gap_stop
- gap_start
;
3195 bfd_vma lma
; /* Octets. */
3196 bfd_size_type size
; /* Octets. */
3197 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3198 bfd_vma _pad_to
= pad_to
* opb
;
3200 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3201 size
= bfd_section_size (osections
[num_sec
- 1]);
3202 if (lma
+ size
< _pad_to
)
3204 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3206 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3207 _("can't add padding"));
3212 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3213 if (max_gap
< _pad_to
- (lma
+ size
))
3214 max_gap
= _pad_to
- (lma
+ size
);
3220 /* Symbol filtering must happen after the output sections
3221 have been created, but before their contents are set. */
3223 if (convert_debugging
)
3224 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, false);
3226 if ((obfd
->flags
& (EXEC_P
| DYNAMIC
)) != 0
3227 && (obfd
->flags
& HAS_RELOC
) == 0)
3229 if (bfd_keep_unused_section_symbols (obfd
) || keep_section_symbols
)
3231 /* Non-relocatable inputs may not have the unused section
3232 symbols. Mark all section symbols as used to generate
3235 for (asect
= obfd
->sections
; asect
!= NULL
; asect
= asect
->next
)
3237 asect
->symbol
->flags
|= BSF_SECTION_SYM_USED
;
3241 /* Non-relocatable inputs may have the unused section symbols.
3242 Mark all section symbols as unused to excluded them. */
3244 for (s
= 0; s
< symcount
; s
++)
3245 if ((isympp
[s
]->flags
& BSF_SECTION_SYM_USED
))
3246 isympp
[s
]->flags
&= ~BSF_SECTION_SYM_USED
;
3250 if (strip_symbols
== STRIP_DEBUG
3251 || strip_symbols
== STRIP_ALL
3252 || strip_symbols
== STRIP_UNNEEDED
3253 || strip_symbols
== STRIP_NONDEBUG
3254 || strip_symbols
== STRIP_DWO
3255 || strip_symbols
== STRIP_NONDWO
3256 || discard_locals
!= LOCALS_UNDEF
3258 || htab_elements (strip_specific_htab
) != 0
3259 || htab_elements (keep_specific_htab
) != 0
3260 || htab_elements (localize_specific_htab
) != 0
3261 || htab_elements (globalize_specific_htab
) != 0
3262 || htab_elements (keepglobal_specific_htab
) != 0
3263 || htab_elements (weaken_specific_htab
) != 0
3264 || htab_elements (redefine_specific_htab
) != 0
3265 || prefix_symbols_string
3268 || convert_debugging
3269 || change_leading_char
3270 || remove_leading_char
3271 || section_rename_list
3275 /* Mark symbols used in output relocations so that they
3276 are kept, even if they are local labels or static symbols.
3278 Note we iterate over the input sections examining their
3279 relocations since the relocations for the output sections
3280 haven't been set yet. mark_symbols_used_in_relocations will
3281 ignore input sections which have no corresponding output
3283 if (strip_symbols
!= STRIP_ALL
)
3285 bfd_set_error (bfd_error_no_error
);
3286 bfd_map_over_sections (ibfd
,
3287 mark_symbols_used_in_relocations
,
3289 if (bfd_get_error () != bfd_error_no_error
)
3296 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3297 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3300 if (convert_debugging
&& dhandle
!= NULL
)
3304 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3307 dhandle
= NULL
; /* Paranoia... */
3316 bfd_set_symtab (obfd
, osympp
, symcount
);
3318 /* This has to happen before section positions are set. */
3319 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3321 /* This has to happen after the symbol table has been set. */
3322 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3324 if (add_sections
!= NULL
)
3326 struct section_add
*padd
;
3328 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3330 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3333 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3339 if (update_sections
!= NULL
)
3341 struct section_add
*pupdate
;
3343 for (pupdate
= update_sections
;
3345 pupdate
= pupdate
->next
)
3347 osec
= pupdate
->section
->output_section
;
3348 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3351 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3357 if (merged_note_sections
!= NULL
)
3359 merged_note_section
* merged
= NULL
;
3361 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3363 if (! is_mergeable_note_section (obfd
, osec
))
3367 merged
= merged_note_sections
;
3369 /* It is likely that output sections are in the same order
3370 as the input sections, but do not assume that this is
3372 if (merged
->sec
->output_section
!= osec
)
3374 for (merged
= merged_note_sections
;
3376 merged
= merged
->next
)
3377 if (merged
->sec
->output_section
== osec
)
3382 bfd_nonfatal_message
3384 _("error: failed to locate merged notes"));
3389 if (merged
->contents
== NULL
)
3391 bfd_nonfatal_message
3393 _("error: failed to merge notes"));
3397 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3400 bfd_nonfatal_message
3402 _("error: failed to copy merged notes into output"));
3406 merged
= merged
->next
;
3409 /* Free the memory. */
3410 merged_note_section
* next
;
3411 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3413 next
= merged
->next
;
3414 free (merged
->contents
);
3418 else if (merge_notes
&& ! is_strip
)
3419 non_fatal (_("%s: Could not find any mergeable note sections"),
3420 bfd_get_filename (ibfd
));
3422 if (gnu_debuglink_filename
!= NULL
)
3424 if (! bfd_fill_in_gnu_debuglink_section
3425 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3427 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3428 _("cannot fill debug link section `%s'"),
3429 gnu_debuglink_filename
);
3438 /* Fill in the gaps. */
3441 buf
= (bfd_byte
*) xmalloc (max_gap
);
3442 memset (buf
, gap_fill
, max_gap
);
3444 for (i
= 0; i
< num_sec
; i
++)
3452 off
= bfd_section_size (osections
[i
]) - left
;
3463 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3466 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3482 /* Allow the BFD backend to copy any private data it understands
3483 from the input BFD to the output BFD. This is done last to
3484 permit the routine to look at the filtered symbol table, which is
3485 important for the ECOFF code at least. */
3486 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3488 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3489 _("error copying private BFD data"));
3493 /* Switch to the alternate machine code. We have to do this at the
3494 very end, because we only initialize the header when we create
3495 the first section. */
3496 if (use_alt_mach_code
!= 0)
3498 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3500 non_fatal (_("this target does not support %lu alternative machine codes"),
3502 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3504 non_fatal (_("treating that number as an absolute e_machine value instead"));
3505 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3508 non_fatal (_("ignoring the alternative value"));
3515 /* Read each archive element in turn from IBFD, copy the
3516 contents to temp file, and keep the temp file handle.
3517 If 'force_output_target' is TRUE then make sure that
3518 all elements in the new archive are of the type
3522 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3523 bool force_output_target
,
3524 const bfd_arch_info_type
*input_arch
)
3528 struct name_list
*next
;
3532 bfd
**ptr
= &obfd
->archive_head
;
3535 const char *filename
;
3537 /* PR 24281: It is not clear what should happen when copying a thin archive.
3538 One part is straight forward - if the output archive is in a different
3539 directory from the input archive then any relative paths in the library
3540 should be adjusted to the new location. But if any transformation
3541 options are active (eg strip, rename, add, etc) then the implication is
3542 that these should be applied to the files pointed to by the archive.
3543 But since objcopy is not destructive, this means that new files must be
3544 created, and there is no guidance for the names of the new files. (Plus
3545 this conflicts with one of the goals of thin libraries - only taking up
3546 a minimal amount of space in the file system).
3548 So for now we fail if an attempt is made to copy such libraries. */
3549 if (ibfd
->is_thin_archive
)
3552 bfd_set_error (bfd_error_invalid_operation
);
3553 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3554 _("sorry: copying thin archives is not currently supported"));
3558 /* Make a temp directory to hold the contents. */
3559 dir
= make_tempdir (bfd_get_filename (obfd
));
3561 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3564 if (strip_symbols
== STRIP_ALL
)
3565 obfd
->has_armap
= false;
3567 obfd
->has_armap
= ibfd
->has_armap
;
3568 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3571 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3575 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3577 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3580 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3581 goto cleanup_and_exit
;
3584 while (!status
&& this_element
!= NULL
)
3590 int stat_status
= 0;
3594 /* PR binutils/17533: Do not allow directory traversal
3595 outside of the current directory tree by archive members. */
3596 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3598 non_fatal (_("illegal pathname found in archive member: %s"),
3599 bfd_get_filename (this_element
));
3601 goto cleanup_and_exit
;
3604 /* Create an output file for this member. */
3605 output_name
= concat (dir
, "/",
3606 bfd_get_filename (this_element
), (char *) 0);
3608 /* If the file already exists, make another temp dir. */
3609 if (stat (output_name
, &buf
) >= 0)
3611 char * tmpdir
= make_tempdir (output_name
);
3616 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3619 goto cleanup_and_exit
;
3622 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3627 output_name
= concat (tmpdir
, "/",
3628 bfd_get_filename (this_element
), (char *) 0);
3633 memset (&buf
, 0, sizeof (buf
));
3634 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3636 if (stat_status
!= 0)
3637 non_fatal (_("internal stat error on %s"),
3638 bfd_get_filename (this_element
));
3641 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3642 l
->name
= output_name
;
3647 ok_object
= bfd_check_format (this_element
, bfd_object
);
3649 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3650 _("Unable to recognise the format of file"));
3652 /* PR binutils/3110: Cope with archives
3653 containing multiple target types. */
3654 if (force_output_target
|| !ok_object
)
3655 output_bfd
= bfd_openw (output_name
, output_target
);
3657 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3659 if (output_bfd
== NULL
)
3661 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3663 goto cleanup_and_exit
;
3668 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3670 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3671 /* Try again as an unknown object file. */
3673 else if (!bfd_close (output_bfd
))
3675 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3676 /* Error in new object file. Don't change archive. */
3683 del
= !copy_unknown_object (this_element
, output_bfd
);
3684 if (!bfd_close_all_done (output_bfd
))
3686 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3687 /* Error in new object file. Don't change archive. */
3694 unlink (output_name
);
3699 if (preserve_dates
&& stat_status
== 0)
3700 set_times (output_name
, &buf
);
3702 /* Open the newly output file and attach to our list. */
3703 output_bfd
= bfd_openr (output_name
, output_target
);
3705 l
->obfd
= output_bfd
;
3708 ptr
= &output_bfd
->archive_next
;
3710 last_element
= this_element
;
3712 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3714 bfd_close (last_element
);
3719 filename
= bfd_get_filename (obfd
);
3720 if (!bfd_close (obfd
))
3723 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3726 filename
= bfd_get_filename (ibfd
);
3727 if (!bfd_close (ibfd
))
3730 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3734 /* Delete all the files that we opened. */
3736 struct name_list
* next
;
3738 for (l
= list
; l
!= NULL
; l
= next
)
3740 if (l
->obfd
== NULL
)
3744 bfd_close (l
->obfd
);
3747 free ((char *) l
->name
);
3758 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3760 /* This is only relevant to Coff targets. */
3761 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3764 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3765 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3766 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3770 /* The top-level control. */
3773 copy_file (const char *input_filename
, const char *output_filename
, int ofd
,
3774 struct stat
*in_stat
, const char *input_target
,
3775 const char *output_target
, const bfd_arch_info_type
*input_arch
)
3778 char **obj_matching
;
3779 char **core_matching
;
3780 off_t size
= get_file_size (input_filename
);
3785 non_fatal (_("error: the input file '%s' is empty"),
3791 /* To allow us to do "strip *" without dying on the first
3792 non-object file, failures are nonfatal. */
3793 ibfd
= bfd_openr (input_filename
, input_target
);
3794 if (ibfd
== NULL
|| bfd_stat (ibfd
, in_stat
) != 0)
3796 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3801 switch (do_debug_sections
)
3805 case compress_gnu_zlib
:
3806 case compress_gabi_zlib
:
3807 ibfd
->flags
|= BFD_COMPRESS
;
3808 /* Don't check if input is ELF here since this information is
3809 only available after bfd_check_format_matches is called. */
3810 if (do_debug_sections
!= compress_gnu_zlib
)
3811 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3814 ibfd
->flags
|= BFD_COMPRESS
| BFD_COMPRESS_GABI
| BFD_COMPRESS_ZSTD
;
3816 fatal (_ ("--compress-debug-sections=zstd: binutils is not built with "
3821 ibfd
->flags
|= BFD_DECOMPRESS
;
3827 switch (do_elf_stt_common
)
3829 case elf_stt_common
:
3830 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3833 case no_elf_stt_common
:
3834 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3840 if (bfd_check_format (ibfd
, bfd_archive
))
3842 bool force_output_target
;
3845 /* bfd_get_target does not return the correct value until
3846 bfd_check_format succeeds. */
3847 if (output_target
== NULL
)
3849 output_target
= bfd_get_target (ibfd
);
3850 force_output_target
= false;
3853 force_output_target
= true;
3856 obfd
= bfd_fdopenw (output_filename
, output_target
, ofd
);
3858 obfd
= bfd_openw (output_filename
, output_target
);
3863 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3868 if (gnu_debuglink_filename
!= NULL
)
3870 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3871 bfd_get_filename (ibfd
));
3872 gnu_debuglink_filename
= NULL
;
3875 /* This is a no-op on non-Coff targets. */
3876 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3878 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3880 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3885 /* bfd_get_target does not return the correct value until
3886 bfd_check_format succeeds. */
3887 if (output_target
== NULL
)
3888 output_target
= bfd_get_target (ibfd
);
3891 obfd
= bfd_fdopenw (output_filename
, output_target
, ofd
);
3893 obfd
= bfd_openw (output_filename
, output_target
);
3898 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3903 /* This is a no-op on non-Coff targets. */
3904 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3906 if (! copy_object (ibfd
, obfd
, input_arch
))
3909 /* PR 17512: file: 0f15796a.
3910 If the file could not be copied it may not be in a writeable
3911 state. So use bfd_close_all_done to avoid the possibility of
3912 writing uninitialised data into the file. */
3913 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3916 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3920 if (!bfd_close (ibfd
))
3923 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3929 bfd_error_type obj_error
= bfd_get_error ();
3930 bfd_error_type core_error
;
3932 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3934 /* This probably can't happen.. */
3935 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3936 free (obj_matching
);
3940 core_error
= bfd_get_error ();
3941 /* Report the object error in preference to the core error. */
3942 if (obj_error
!= core_error
)
3943 bfd_set_error (obj_error
);
3945 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3947 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3948 list_matching_formats (obj_matching
);
3949 if (core_error
== bfd_error_file_ambiguously_recognized
)
3950 list_matching_formats (core_matching
);
3956 /* Add a name to the section renaming list. */
3959 add_section_rename (const char * old_name
, const char * new_name
,
3962 section_rename
* srename
;
3964 /* Check for conflicts first. */
3965 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3966 if (strcmp (srename
->old_name
, old_name
) == 0)
3968 /* Silently ignore duplicate definitions. */
3969 if (strcmp (srename
->new_name
, new_name
) == 0
3970 && srename
->flags
== flags
)
3973 fatal (_("Multiple renames of section %s"), old_name
);
3976 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3978 srename
->old_name
= old_name
;
3979 srename
->new_name
= new_name
;
3980 srename
->flags
= flags
;
3981 srename
->next
= section_rename_list
;
3983 section_rename_list
= srename
;
3986 /* Check the section rename list for a new name of the input section
3987 called OLD_NAME. Returns the new name if one is found and sets
3988 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3991 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3993 const section_rename
*srename
;
3995 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3996 if (strcmp (srename
->old_name
, old_name
) == 0)
3998 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3999 *returned_flags
= srename
->flags
;
4001 return srename
->new_name
;
4007 /* Once each of the sections is copied, we may still need to do some
4008 finalization work for private section headers. Do that here. */
4011 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
4013 /* Allow the BFD backend to copy any private data it understands
4014 from the input section to the output section. */
4015 if (! bfd_copy_private_header_data (ibfd
, obfd
))
4018 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
4019 _("error in private header data"));
4023 /* All went well. */
4027 /* Create a section in OBFD with the same
4028 name and attributes as ISECTION in IBFD. */
4031 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4033 bfd
*obfd
= (bfd
*) obfdarg
;
4034 struct section_list
*p
;
4040 const char *err
= NULL
;
4042 const char * new_name
;
4043 char *prefix
= NULL
;
4045 unsigned int alignment
;
4047 if (is_strip_section (ibfd
, isection
))
4050 /* Get the, possibly new, name of the output section. */
4051 name
= bfd_section_name (isection
);
4052 flags
= bfd_section_flags (isection
);
4053 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
4055 flags
&= bfd_applicable_section_flags (ibfd
);
4056 flags
&= bfd_applicable_section_flags (obfd
);
4058 new_name
= find_section_rename (name
, &flags
);
4059 if (new_name
!= name
)
4062 flags
= check_new_section_flags (flags
, obfd
, name
);
4065 /* Prefix sections. */
4066 if (prefix_alloc_sections_string
4067 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
4068 prefix
= prefix_alloc_sections_string
;
4069 else if (prefix_sections_string
)
4070 prefix
= prefix_sections_string
;
4076 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4082 make_nobits
= false;
4084 p
= find_section_list (bfd_section_name (isection
), false,
4085 SECTION_CONTEXT_SET_FLAGS
);
4088 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4089 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4091 else if (strip_symbols
== STRIP_NONDEBUG
4092 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4093 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4095 flagword clr
= SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
;
4097 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4099 /* PR 29532: Copy group sections intact as otherwise we end up with
4100 empty groups. This prevents separate debug info files from
4101 being used with GDB, if they were based upon files that
4102 originally contained groups. */
4103 if (flags
& SEC_GROUP
)
4108 /* Twiddle the input section flags so that it seems to
4109 elf.c:copy_private_bfd_data that section flags have not
4110 changed between input and output sections. This hack
4111 prevents wholesale rewriting of the program headers. */
4112 isection
->flags
&= ~clr
;
4117 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4119 if (osection
== NULL
)
4121 err
= _("failed to create output section");
4125 size
= bfd_section_size (isection
);
4126 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4128 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4129 else if (extract_symbol
)
4131 if (!bfd_set_section_size (osection
, size
))
4132 err
= _("failed to set size");
4134 vma
= bfd_section_vma (isection
);
4135 p
= find_section_list (bfd_section_name (isection
), false,
4136 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4139 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4145 vma
+= change_section_address
;
4147 if (!bfd_set_section_vma (osection
, vma
))
4148 err
= _("failed to set vma");
4150 lma
= isection
->lma
;
4151 p
= find_section_list (bfd_section_name (isection
), false,
4152 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4155 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4161 lma
+= change_section_address
;
4163 osection
->lma
= lma
;
4165 p
= find_section_list (bfd_section_name (isection
), false,
4166 SECTION_CONTEXT_SET_ALIGNMENT
);
4168 alignment
= p
->alignment
;
4170 alignment
= bfd_section_alignment (isection
);
4172 /* FIXME: This is probably not enough. If we change the LMA we
4173 may have to recompute the header for the file as well. */
4174 if (!bfd_set_section_alignment (osection
, alignment
))
4175 err
= _("failed to set alignment");
4177 /* Copy merge entity size. */
4178 osection
->entsize
= isection
->entsize
;
4180 /* Copy compress status. */
4181 osection
->compress_status
= isection
->compress_status
;
4183 /* This used to be mangle_section; we do here to avoid using
4184 bfd_get_section_by_name since some formats allow multiple
4185 sections with the same name. */
4186 isection
->output_section
= osection
;
4187 isection
->output_offset
= 0;
4189 if ((isection
->flags
& SEC_GROUP
) != 0)
4191 asymbol
*gsym
= group_signature (isection
);
4195 gsym
->flags
|= BSF_KEEP
;
4196 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4197 elf_group_id (isection
) = gsym
;
4201 /* Allow the BFD backend to copy any private data it understands
4202 from the input section to the output section. */
4203 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4204 err
= _("failed to copy private data");
4207 elf_section_type (osection
) = SHT_NOBITS
;
4214 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4217 /* Return TRUE if input section ISECTION should be skipped. */
4220 skip_section (bfd
*ibfd
, sec_ptr isection
, bool skip_copy
)
4226 /* If we have already failed earlier on,
4227 do not keep on generating complaints now. */
4234 if (is_strip_section (ibfd
, isection
))
4237 if (is_update_section (ibfd
, isection
))
4240 /* When merging a note section we skip the copying of the contents,
4241 but not the copying of the relocs associated with the contents. */
4242 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4245 flags
= bfd_section_flags (isection
);
4246 if ((flags
& SEC_GROUP
) != 0)
4249 osection
= isection
->output_section
;
4250 size
= bfd_section_size (isection
);
4252 if (size
== 0 || osection
== 0)
4258 /* Add section SECTION_PATTERN to the list of sections that will have their
4259 relocations removed. */
4262 handle_remove_relocations_option (const char *section_pattern
)
4264 find_section_list (section_pattern
, true, SECTION_CONTEXT_REMOVE_RELOCS
);
4267 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4268 otherwise return FALSE. If the user has requested that relocations be
4269 removed from a section that does not have relocations then this
4270 function will still return TRUE. */
4273 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4275 return (find_section_list (bfd_section_name (isection
), false,
4276 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4279 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4280 A special case is detected here, if the user asks to remove a relocation
4281 section (one starting with ".rela" or ".rel") then this removal must
4282 be done using a different technique in a relocatable object. */
4285 handle_remove_section_option (const char *section_pattern
)
4287 find_section_list (section_pattern
, true, SECTION_CONTEXT_REMOVE
);
4288 if (startswith (section_pattern
, ".rel"))
4290 section_pattern
+= 4;
4291 if (*section_pattern
== 'a')
4293 if (*section_pattern
)
4294 handle_remove_relocations_option (section_pattern
);
4296 sections_removed
= true;
4299 /* Copy relocations in input section ISECTION of IBFD to an output
4300 section with the same name in OBFDARG. If stripping then don't
4301 copy any relocation info. */
4304 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4306 bfd
*obfd
= (bfd
*) obfdarg
;
4312 if (skip_section (ibfd
, isection
, false))
4315 osection
= isection
->output_section
;
4317 /* Core files and DWO files do not need to be relocated. */
4318 if (bfd_get_format (obfd
) == bfd_core
4319 || strip_symbols
== STRIP_NONDWO
4320 || discard_relocations (ibfd
, isection
))
4324 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4328 /* Do not complain if the target does not support relocations. */
4329 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4334 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4342 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4343 osection
->flags
&= ~SEC_RELOC
;
4347 if (isection
->orelocation
!= NULL
)
4349 /* Some other function has already set up the output relocs
4350 for us, so scan those instead of the default relocs. */
4351 relcount
= isection
->reloc_count
;
4352 relpp
= isection
->orelocation
;
4356 relpp
= bfd_xalloc (obfd
, relsize
);
4357 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4361 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4362 _("relocation count is negative"));
4367 if (strip_symbols
== STRIP_ALL
)
4369 /* Remove relocations which are not in
4370 keep_strip_specific_list. */
4374 for (w_relpp
= relpp
, i
= 0; i
< relcount
; i
++)
4375 /* PR 17512: file: 9e907e0c. */
4376 if (relpp
[i
]->sym_ptr_ptr
4378 && *relpp
[i
]->sym_ptr_ptr
4379 && is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4380 keep_specific_htab
))
4381 *w_relpp
++ = relpp
[i
];
4382 relcount
= w_relpp
- relpp
;
4386 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4388 osection
->flags
&= ~SEC_RELOC
;
4392 /* Copy the data of input section ISECTION of IBFD
4393 to an output section with the same name in OBFD. */
4396 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4398 bfd
*obfd
= (bfd
*) obfdarg
;
4399 struct section_list
*p
;
4403 if (skip_section (ibfd
, isection
, true))
4406 osection
= isection
->output_section
;
4407 /* The output SHF_COMPRESSED section size is different from input if
4408 ELF classes of input and output aren't the same. We can't use
4409 the output section size since --interleave will shrink the output
4410 section. Size will be updated if the section is converted. */
4411 size
= bfd_section_size (isection
);
4413 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4414 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4416 bfd_byte
*memhunk
= NULL
;
4418 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4419 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4422 bfd_set_section_size (osection
, 0);
4424 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4431 /* We don't handle leftover bytes (too many possible behaviors,
4432 and we don't know what the user wants). The section length
4433 must be a multiple of the number of bytes to swap. */
4434 if ((size
% reverse_bytes
) == 0)
4439 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4440 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4442 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4445 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4446 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4450 /* User must pad the section up in order to do this. */
4451 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4452 bfd_section_name (isection
), reverse_bytes
);
4457 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4458 char *from
= (char *) memhunk
+ copy_byte
;
4459 char *to
= (char *) memhunk
;
4460 char *end
= (char *) memhunk
+ size
;
4463 /* If the section address is not exactly divisible by the interleave,
4464 then we must bias the from address. If the copy_byte is less than
4465 the bias, then we must skip forward one interleave, and increment
4467 int extra
= isection
->lma
% interleave
;
4469 if (copy_byte
< extra
)
4472 for (; from
< end
; from
+= interleave
)
4473 for (i
= 0; i
< copy_width
; i
++)
4475 if (&from
[i
] >= end
)
4480 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4481 osection
->lma
/= interleave
;
4482 if (copy_byte
< extra
)
4486 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4489 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4495 else if ((p
= find_section_list (bfd_section_name (isection
),
4496 false, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4497 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4499 void *memhunk
= xmalloc (size
);
4501 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4502 flag--they can just remove the section entirely and add it
4503 back again. However, we do permit them to turn on the
4504 SEC_HAS_CONTENTS flag, and take it to mean that the section
4505 contents should be zeroed out. */
4507 memset (memhunk
, 0, size
);
4508 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4511 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4519 /* Get all the sections. This is used when --gap-fill or --pad-to is
4523 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4525 asection
***secppp
= (asection
***) secppparg
;
4527 **secppp
= osection
;
4531 /* Sort sections by LMA. This is called via qsort, and is used when
4532 --gap-fill or --pad-to is used. We force non loadable or empty
4533 sections to the front, where they are easier to ignore. */
4536 compare_section_lma (const void *arg1
, const void *arg2
)
4538 const asection
*sec1
= *(const asection
**) arg1
;
4539 const asection
*sec2
= *(const asection
**) arg2
;
4540 flagword flags1
, flags2
;
4542 /* Sort non loadable sections to the front. */
4543 flags1
= sec1
->flags
;
4544 flags2
= sec2
->flags
;
4545 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4546 || (flags1
& SEC_LOAD
) == 0)
4548 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4549 && (flags2
& SEC_LOAD
) != 0)
4554 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4555 || (flags2
& SEC_LOAD
) == 0)
4559 /* Sort sections by LMA. */
4560 if (sec1
->lma
> sec2
->lma
)
4562 if (sec1
->lma
< sec2
->lma
)
4565 /* Sort sections with the same LMA by size. */
4566 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4568 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4571 if (sec1
->id
> sec2
->id
)
4573 if (sec1
->id
< sec2
->id
)
4578 /* Mark all the symbols which will be used in output relocations with
4579 the BSF_KEEP flag so that those symbols will not be stripped.
4581 Ignore relocations which will not appear in the output file. */
4584 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4586 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4591 /* Ignore an input section with no corresponding output section. */
4592 if (isection
->output_section
== NULL
)
4595 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4598 /* Do not complain if the target does not support relocations. */
4599 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4601 bfd_fatal (bfd_get_filename (ibfd
));
4607 relpp
= (arelent
**) xmalloc (relsize
);
4608 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4610 bfd_fatal (bfd_get_filename (ibfd
));
4612 /* Examine each symbol used in a relocation. If it's not one of the
4613 special bfd section symbols, then mark it with BSF_KEEP. */
4614 for (i
= 0; i
< relcount
; i
++)
4616 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4617 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4618 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4619 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4620 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4621 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4622 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4628 /* Write out debugging information. */
4631 write_debugging_info (bfd
*obfd
, void *dhandle
,
4632 long *symcountp ATTRIBUTE_UNUSED
,
4633 asymbol
***symppp ATTRIBUTE_UNUSED
)
4635 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4636 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4638 bfd_byte
*syms
, *strings
= NULL
;
4639 bfd_size_type symsize
, stringsize
;
4640 asection
*stabsec
, *stabstrsec
;
4643 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4648 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4649 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4650 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4652 || stabstrsec
== NULL
4653 || !bfd_set_section_size (stabsec
, symsize
)
4654 || !bfd_set_section_size (stabstrsec
, stringsize
)
4655 || !bfd_set_section_alignment (stabsec
, 2)
4656 || !bfd_set_section_alignment (stabstrsec
, 0))
4658 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4659 _("can't create debugging section"));
4664 /* We can get away with setting the section contents now because
4665 the next thing the caller is going to do is copy over the
4666 real sections. We may someday have to split the contents
4667 setting out of this function. */
4668 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4669 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4672 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4673 _("can't set debugging section contents"));
4681 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4682 _("don't know how to write debugging information for %s"),
4683 bfd_get_target (obfd
));
4687 /* If neither -D nor -U was specified explicitly,
4688 then use the configured default. */
4690 default_deterministic (void)
4692 if (deterministic
< 0)
4693 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4697 strip_main (int argc
, char *argv
[])
4699 char *input_target
= NULL
;
4700 char *output_target
= NULL
;
4701 bool show_version
= false;
4702 bool formats_info
= false;
4705 char *output_file
= NULL
;
4706 bool merge_notes_set
= false;
4708 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4709 strip_options
, (int *) 0)) != EOF
)
4714 input_target
= optarg
;
4717 output_target
= optarg
;
4720 input_target
= output_target
= optarg
;
4723 handle_remove_section_option (optarg
);
4725 case OPTION_KEEP_SECTION
:
4726 find_section_list (optarg
, true, SECTION_CONTEXT_KEEP
);
4728 case OPTION_REMOVE_RELOCS
:
4729 handle_remove_relocations_option (optarg
);
4732 strip_symbols
= STRIP_ALL
;
4736 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4737 strip_symbols
= STRIP_DEBUG
;
4739 case OPTION_STRIP_DWO
:
4740 strip_symbols
= STRIP_DWO
;
4742 case OPTION_STRIP_UNNEEDED
:
4743 strip_symbols
= STRIP_UNNEEDED
;
4746 add_specific_symbol (optarg
, keep_specific_htab
);
4750 merge_notes_set
= true;
4752 case OPTION_NO_MERGE_NOTES
:
4753 merge_notes
= false;
4754 merge_notes_set
= true;
4757 add_specific_symbol (optarg
, strip_specific_htab
);
4760 output_file
= optarg
;
4763 preserve_dates
= true;
4766 deterministic
= true;
4769 deterministic
= false;
4772 discard_locals
= LOCALS_ALL
;
4775 discard_locals
= LOCALS_START_L
;
4781 show_version
= true;
4783 case OPTION_FORMATS_INFO
:
4784 formats_info
= true;
4786 case OPTION_ONLY_KEEP_DEBUG
:
4787 strip_symbols
= STRIP_NONDEBUG
;
4789 case OPTION_KEEP_FILE_SYMBOLS
:
4790 keep_file_symbols
= 1;
4792 case OPTION_KEEP_SECTION_SYMBOLS
:
4793 keep_section_symbols
= true;
4796 /* We've been given a long option. */
4803 strip_usage (stdout
, 0);
4805 strip_usage (stderr
, 1);
4809 /* If the user has not expressly chosen to merge/not-merge ELF notes
4810 then enable the merging unless we are stripping debug or dwo info. */
4811 if (! merge_notes_set
4812 && (strip_symbols
== STRIP_UNDEF
4813 || strip_symbols
== STRIP_ALL
4814 || strip_symbols
== STRIP_UNNEEDED
4815 || strip_symbols
== STRIP_NONDEBUG
4816 || strip_symbols
== STRIP_NONDWO
))
4826 print_version ("strip");
4828 default_deterministic ();
4830 /* Default is to strip all symbols. */
4831 if (strip_symbols
== STRIP_UNDEF
4832 && discard_locals
== LOCALS_UNDEF
4833 && htab_elements (strip_specific_htab
) == 0)
4834 strip_symbols
= STRIP_ALL
;
4836 if (output_target
== NULL
)
4837 output_target
= input_target
;
4841 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4842 strip_usage (stderr
, 1);
4844 for (; i
< argc
; i
++)
4846 int hold_status
= status
;
4847 struct stat statbuf
;
4852 if (get_file_size (argv
[i
]) < 1)
4858 if (output_file
== NULL
4859 || filename_cmp (argv
[i
], output_file
) == 0)
4861 tmpname
= make_tempname (argv
[i
], &tmpfd
);
4863 copyfd
= dup (tmpfd
);
4866 tmpname
= output_file
;
4868 if (tmpname
== NULL
)
4870 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4871 _("could not create temporary file to hold stripped copy"));
4877 copy_file (argv
[i
], tmpname
, tmpfd
, &statbuf
, input_target
,
4878 output_target
, NULL
);
4881 const char *oname
= output_file
? output_file
: argv
[i
];
4882 status
= smart_rename (tmpname
, oname
, copyfd
,
4883 &statbuf
, preserve_dates
) != 0;
4885 status
= hold_status
;
4891 unlink_if_ordinary (tmpname
);
4893 if (output_file
!= tmpname
)
4900 /* Set up PE subsystem. */
4903 set_pe_subsystem (const char *s
)
4905 const char *version
, *subsystem
;
4915 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4916 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4917 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4918 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4919 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4920 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4921 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4922 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4923 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4924 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4930 /* Check for the presence of a version number. */
4931 version
= strchr (s
, ':');
4932 if (version
== NULL
)
4936 int len
= version
- s
;
4940 version
= copy
+ 1 + len
;
4941 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4943 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4945 non_fatal (_("%s: bad version in PE subsystem"), s
);
4948 /* Check for numeric subsystem. */
4949 value
= (short) strtol (subsystem
, ©
, 0);
4952 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4953 if (v
[i
].value
== value
)
4955 pe_subsystem
= value
;
4956 set_def
= v
[i
].set_def
;
4962 /* Search for subsystem by name. */
4963 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4964 if (strcmp (subsystem
, v
[i
].name
) == 0)
4966 pe_subsystem
= v
[i
].value
;
4967 set_def
= v
[i
].set_def
;
4975 fatal (_("unknown PE subsystem: %s"), s
);
4980 if (pe_file_alignment
== (bfd_vma
) -1)
4981 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4982 if (pe_section_alignment
== (bfd_vma
) -1)
4983 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4987 free ((char *) subsystem
);
4990 /* Convert EFI target to PEI target. */
4993 convert_efi_target (char **targ
)
4997 char *efi
= *targ
+ 4;
5000 if (startswith (efi
, "app-"))
5001 subsys
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5002 else if (startswith (efi
, "bsdrv-"))
5004 subsys
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5007 else if (startswith (efi
, "rtdrv-"))
5009 subsys
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5016 pei
= xmalloc (len
+ sizeof ("-little"));
5017 memcpy (pei
, efi
, len
+ 1);
5022 if (strcmp (efi
+ 4, "ia32") == 0)
5024 /* Change ia32 to i386. */
5029 else if (strcmp (efi
+ 4, "x86_64") == 0)
5031 /* Change x86_64 to x86-64. */
5034 else if (strcmp (efi
+ 4, "aarch64") == 0)
5036 /* Change aarch64 to aarch64-little. */
5037 memcpy (pei
+ 4 + sizeof ("aarch64") - 1, "-little", sizeof ("-little"));
5043 /* Allocate and return a pointer to a struct section_add, initializing the
5044 structure using ARG, a string in the format "sectionname=filename".
5045 The returned structure will have its next pointer set to NEXT. The
5046 OPTION field is the name of the command line option currently being
5047 parsed, and is only used if an error needs to be reported. */
5049 static struct section_add
*
5050 init_section_add (const char *arg
,
5051 struct section_add
*next
,
5054 struct section_add
*pa
;
5057 s
= strchr (arg
, '=');
5059 fatal (_("bad format for %s"), option
);
5061 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
5062 pa
->name
= xstrndup (arg
, s
- arg
);
5063 pa
->filename
= s
+ 1;
5065 pa
->contents
= NULL
;
5071 /* Load the file specified in PA, allocating memory to hold the file
5072 contents, and store a pointer to the allocated memory in the contents
5073 field of PA. The size field of PA is also updated. All errors call
5077 section_add_load_file (struct section_add
*pa
)
5082 /* We don't use get_file_size so that we can do
5083 --add-section .note.GNU_stack=/dev/null
5084 get_file_size doesn't work on /dev/null. */
5086 f
= fopen (pa
->filename
, FOPEN_RB
);
5088 fatal (_("cannot open: %s: %s"),
5089 pa
->filename
, strerror (errno
));
5093 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5101 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5104 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5106 fatal (_("%s: fread failed"), pa
->filename
);
5117 copy_main (int argc
, char *argv
[])
5119 char *input_filename
= NULL
;
5120 char *output_filename
= NULL
;
5122 char *input_target
= NULL
;
5123 char *output_target
= NULL
;
5124 bool show_version
= false;
5125 bool change_warn
= true;
5126 bool formats_info
= false;
5127 bool use_globalize
= false;
5128 bool use_keep_global
= false;
5132 struct stat statbuf
;
5133 const bfd_arch_info_type
*input_arch
= NULL
;
5135 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5136 copy_options
, (int *) 0)) != EOF
)
5141 copy_byte
= atoi (optarg
);
5143 fatal (_("byte number must be non-negative"));
5147 input_arch
= bfd_scan_arch (optarg
);
5148 if (input_arch
== NULL
)
5149 fatal (_("architecture %s unknown"), optarg
);
5155 interleave
= atoi (optarg
);
5157 fatal (_("interleave must be positive"));
5163 case OPTION_INTERLEAVE_WIDTH
:
5164 copy_width
= atoi (optarg
);
5166 fatal(_("interleave width must be positive"));
5170 case 's': /* "source" - 'I' is preferred */
5171 input_target
= optarg
;
5175 case 'd': /* "destination" - 'O' is preferred */
5176 output_target
= optarg
;
5180 input_target
= output_target
= optarg
;
5184 find_section_list (optarg
, true, SECTION_CONTEXT_COPY
);
5185 sections_copied
= true;
5189 handle_remove_section_option (optarg
);
5192 case OPTION_KEEP_SECTION
:
5193 find_section_list (optarg
, true, SECTION_CONTEXT_KEEP
);
5196 case OPTION_REMOVE_RELOCS
:
5197 handle_remove_relocations_option (optarg
);
5201 strip_symbols
= STRIP_ALL
;
5205 strip_symbols
= STRIP_DEBUG
;
5208 case OPTION_STRIP_DWO
:
5209 strip_symbols
= STRIP_DWO
;
5212 case OPTION_STRIP_UNNEEDED
:
5213 strip_symbols
= STRIP_UNNEEDED
;
5216 case OPTION_ONLY_KEEP_DEBUG
:
5217 strip_symbols
= STRIP_NONDEBUG
;
5220 case OPTION_KEEP_FILE_SYMBOLS
:
5221 keep_file_symbols
= 1;
5224 case OPTION_ADD_GNU_DEBUGLINK
:
5225 long_section_names
= ENABLE
;
5226 gnu_debuglink_filename
= optarg
;
5230 add_specific_symbol (optarg
, keep_specific_htab
);
5236 case OPTION_NO_MERGE_NOTES
:
5237 merge_notes
= false;
5241 add_specific_symbol (optarg
, strip_specific_htab
);
5244 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5245 add_specific_symbol (optarg
, strip_unneeded_htab
);
5249 add_specific_symbol (optarg
, localize_specific_htab
);
5252 case OPTION_GLOBALIZE_SYMBOL
:
5253 use_globalize
= true;
5254 add_specific_symbol (optarg
, globalize_specific_htab
);
5258 use_keep_global
= true;
5259 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5263 add_specific_symbol (optarg
, weaken_specific_htab
);
5267 preserve_dates
= true;
5271 deterministic
= true;
5275 deterministic
= false;
5283 discard_locals
= LOCALS_ALL
;
5287 discard_locals
= LOCALS_START_L
;
5295 show_version
= true;
5298 case OPTION_FORMATS_INFO
:
5299 formats_info
= true;
5306 case OPTION_ADD_SECTION
:
5307 add_sections
= init_section_add (optarg
, add_sections
,
5309 section_add_load_file (add_sections
);
5312 case OPTION_UPDATE_SECTION
:
5313 update_sections
= init_section_add (optarg
, update_sections
,
5314 "--update-section");
5315 section_add_load_file (update_sections
);
5318 case OPTION_DUMP_SECTION
:
5319 dump_sections
= init_section_add (optarg
, dump_sections
,
5323 case OPTION_ADD_SYMBOL
:
5326 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5328 newsym
->next
= NULL
;
5329 s
= strchr (optarg
, '=');
5331 fatal (_("bad format for %s"), "--add-symbol");
5332 t
= strchr (s
+ 1, ':');
5334 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5337 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5338 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5342 newsym
->section
= NULL
;
5343 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5347 t
= strchr (t
+ 1, ',');
5348 newsym
->othersym
= NULL
;
5350 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5352 newsym
->flags
= BSF_GLOBAL
;
5354 /* Keep 'othersym' symbols at the front of the list. */
5355 if (newsym
->othersym
)
5357 newsym
->next
= add_sym_list
;
5359 add_sym_tail
= &newsym
->next
;
5360 add_sym_list
= newsym
;
5364 *add_sym_tail
= newsym
;
5365 add_sym_tail
= &newsym
->next
;
5371 case OPTION_CHANGE_START
:
5372 change_start
= parse_vma (optarg
, "--change-start");
5375 case OPTION_CHANGE_SECTION_ADDRESS
:
5376 case OPTION_CHANGE_SECTION_LMA
:
5377 case OPTION_CHANGE_SECTION_VMA
:
5379 struct section_list
* p
;
5380 unsigned int context
= 0;
5384 char *option
= NULL
;
5389 case OPTION_CHANGE_SECTION_ADDRESS
:
5390 option
= "--change-section-address";
5391 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5393 case OPTION_CHANGE_SECTION_LMA
:
5394 option
= "--change-section-lma";
5395 context
= SECTION_CONTEXT_ALTER_LMA
;
5397 case OPTION_CHANGE_SECTION_VMA
:
5398 option
= "--change-section-vma";
5399 context
= SECTION_CONTEXT_ALTER_VMA
;
5403 s
= strchr (optarg
, '=');
5406 s
= strchr (optarg
, '+');
5409 s
= strchr (optarg
, '-');
5411 fatal (_("bad format for %s"), option
);
5416 /* Correct the context. */
5419 case OPTION_CHANGE_SECTION_ADDRESS
:
5420 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5422 case OPTION_CHANGE_SECTION_LMA
:
5423 context
= SECTION_CONTEXT_SET_LMA
;
5425 case OPTION_CHANGE_SECTION_VMA
:
5426 context
= SECTION_CONTEXT_SET_VMA
;
5432 name
= (char *) xmalloc (len
+ 1);
5433 strncpy (name
, optarg
, len
);
5436 p
= find_section_list (name
, true, context
);
5438 val
= parse_vma (s
+ 1, option
);
5444 case OPTION_CHANGE_SECTION_ADDRESS
:
5448 case OPTION_CHANGE_SECTION_LMA
:
5452 case OPTION_CHANGE_SECTION_VMA
:
5459 case OPTION_CHANGE_ADDRESSES
:
5460 change_section_address
= parse_vma (optarg
, "--change-addresses");
5461 change_start
= change_section_address
;
5464 case OPTION_CHANGE_WARNINGS
:
5468 case OPTION_CHANGE_LEADING_CHAR
:
5469 change_leading_char
= true;
5472 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5475 if (strcasecmp (optarg
, "none") == 0)
5476 do_debug_sections
= decompress
;
5477 else if (strcasecmp (optarg
, "zlib") == 0)
5478 do_debug_sections
= compress_zlib
;
5479 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5480 do_debug_sections
= compress_gnu_zlib
;
5481 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5482 do_debug_sections
= compress_gabi_zlib
;
5483 else if (strcasecmp (optarg
, "zstd") == 0)
5484 do_debug_sections
= compress_zstd
;
5486 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5490 do_debug_sections
= compress
;
5493 case OPTION_DEBUGGING
:
5494 convert_debugging
= true;
5497 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5498 do_debug_sections
= decompress
;
5501 case OPTION_ELF_STT_COMMON
:
5502 if (strcasecmp (optarg
, "yes") == 0)
5503 do_elf_stt_common
= elf_stt_common
;
5504 else if (strcasecmp (optarg
, "no") == 0)
5505 do_elf_stt_common
= no_elf_stt_common
;
5507 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5511 case OPTION_GAP_FILL
:
5513 bfd_vma gap_fill_vma
;
5515 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5516 gap_fill
= (bfd_byte
) gap_fill_vma
;
5517 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5518 non_fatal (_("Warning: truncating gap-fill from 0x%" PRIx64
5520 (uint64_t) gap_fill_vma
, gap_fill
);
5521 gap_fill_set
= true;
5525 case OPTION_NO_CHANGE_WARNINGS
:
5526 change_warn
= false;
5530 pad_to
= parse_vma (optarg
, "--pad-to");
5534 case OPTION_REMOVE_LEADING_CHAR
:
5535 remove_leading_char
= true;
5538 case OPTION_REDEFINE_SYM
:
5540 /* Insert this redefinition onto redefine_specific_htab. */
5544 const char *nextarg
;
5545 char *source
, *target
;
5547 s
= strchr (optarg
, '=');
5549 fatal (_("bad format for %s"), "--redefine-sym");
5552 source
= (char *) xmalloc (len
+ 1);
5553 strncpy (source
, optarg
, len
);
5557 len
= strlen (nextarg
);
5558 target
= (char *) xmalloc (len
+ 1);
5559 strcpy (target
, nextarg
);
5561 add_redefine_and_check ("--redefine-sym", source
, target
);
5568 case OPTION_REDEFINE_SYMS
:
5569 add_redefine_syms_file (optarg
);
5572 case OPTION_SET_SECTION_FLAGS
:
5574 struct section_list
*p
;
5579 s
= strchr (optarg
, '=');
5581 fatal (_("bad format for %s"), "--set-section-flags");
5584 name
= (char *) xmalloc (len
+ 1);
5585 strncpy (name
, optarg
, len
);
5588 p
= find_section_list (name
, true, SECTION_CONTEXT_SET_FLAGS
);
5590 p
->flags
= parse_flags (s
+ 1);
5594 case OPTION_SET_SECTION_ALIGNMENT
:
5596 struct section_list
*p
;
5602 s
= strchr (optarg
, '=');
5604 fatal (_("bad format for --set-section-alignment: argument needed"));
5606 align
= atoi (s
+ 1);
5608 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5610 /* Convert integer alignment into a power-of-two alignment. */
5612 while ((align
& 1) == 0)
5619 /* Number has more than on 1, i.e. wasn't a power of 2. */
5620 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5622 /* Add the alignment setting to the section list. */
5624 name
= (char *) xmalloc (len
+ 1);
5625 strncpy (name
, optarg
, len
);
5628 p
= find_section_list (name
, true, SECTION_CONTEXT_SET_ALIGNMENT
);
5630 p
->alignment
= palign
;
5634 case OPTION_RENAME_SECTION
:
5637 const char *eq
, *fl
;
5642 eq
= strchr (optarg
, '=');
5644 fatal (_("bad format for %s"), "--rename-section");
5648 fatal (_("bad format for %s"), "--rename-section");
5650 old_name
= (char *) xmalloc (len
+ 1);
5651 strncpy (old_name
, optarg
, len
);
5655 fl
= strchr (eq
, ',');
5658 flags
= parse_flags (fl
+ 1);
5668 fatal (_("bad format for %s"), "--rename-section");
5670 new_name
= (char *) xmalloc (len
+ 1);
5671 strncpy (new_name
, eq
, len
);
5674 add_section_rename (old_name
, new_name
, flags
);
5678 case OPTION_SET_START
:
5679 set_start
= parse_vma (optarg
, "--set-start");
5680 set_start_set
= true;
5683 case OPTION_SREC_LEN
:
5684 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5687 case OPTION_SREC_FORCES3
:
5688 _bfd_srec_forceS3
= true;
5691 case OPTION_STRIP_SYMBOLS
:
5692 add_specific_symbols (optarg
, strip_specific_htab
,
5693 &strip_specific_buffer
);
5696 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5697 add_specific_symbols (optarg
, strip_unneeded_htab
,
5698 &strip_unneeded_buffer
);
5701 case OPTION_KEEP_SYMBOLS
:
5702 add_specific_symbols (optarg
, keep_specific_htab
,
5703 &keep_specific_buffer
);
5706 case OPTION_KEEP_SECTION_SYMBOLS
:
5707 keep_section_symbols
= true;
5710 case OPTION_LOCALIZE_HIDDEN
:
5711 localize_hidden
= true;
5714 case OPTION_LOCALIZE_SYMBOLS
:
5715 add_specific_symbols (optarg
, localize_specific_htab
,
5716 &localize_specific_buffer
);
5719 case OPTION_LONG_SECTION_NAMES
:
5720 if (!strcmp ("enable", optarg
))
5721 long_section_names
= ENABLE
;
5722 else if (!strcmp ("disable", optarg
))
5723 long_section_names
= DISABLE
;
5724 else if (!strcmp ("keep", optarg
))
5725 long_section_names
= KEEP
;
5727 fatal (_("unknown long section names option '%s'"), optarg
);
5730 case OPTION_GLOBALIZE_SYMBOLS
:
5731 use_globalize
= true;
5732 add_specific_symbols (optarg
, globalize_specific_htab
,
5733 &globalize_specific_buffer
);
5736 case OPTION_KEEPGLOBAL_SYMBOLS
:
5737 use_keep_global
= true;
5738 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5739 &keepglobal_specific_buffer
);
5742 case OPTION_WEAKEN_SYMBOLS
:
5743 add_specific_symbols (optarg
, weaken_specific_htab
,
5744 &weaken_specific_buffer
);
5747 case OPTION_ALT_MACH_CODE
:
5748 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5749 if (use_alt_mach_code
== 0)
5750 fatal (_("unable to parse alternative machine code"));
5753 case OPTION_PREFIX_SYMBOLS
:
5754 prefix_symbols_string
= optarg
;
5757 case OPTION_PREFIX_SECTIONS
:
5758 prefix_sections_string
= optarg
;
5761 case OPTION_PREFIX_ALLOC_SECTIONS
:
5762 prefix_alloc_sections_string
= optarg
;
5765 case OPTION_READONLY_TEXT
:
5766 bfd_flags_to_set
|= WP_TEXT
;
5767 bfd_flags_to_clear
&= ~WP_TEXT
;
5770 case OPTION_WRITABLE_TEXT
:
5771 bfd_flags_to_clear
|= WP_TEXT
;
5772 bfd_flags_to_set
&= ~WP_TEXT
;
5776 bfd_flags_to_set
|= D_PAGED
;
5777 bfd_flags_to_clear
&= ~D_PAGED
;
5781 bfd_flags_to_clear
|= D_PAGED
;
5782 bfd_flags_to_set
&= ~D_PAGED
;
5785 case OPTION_EXTRACT_DWO
:
5786 strip_symbols
= STRIP_NONDWO
;
5789 case OPTION_EXTRACT_SYMBOL
:
5790 extract_symbol
= true;
5793 case OPTION_REVERSE_BYTES
:
5795 int prev
= reverse_bytes
;
5797 reverse_bytes
= atoi (optarg
);
5798 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5799 fatal (_("number of bytes to reverse must be positive and even"));
5801 if (prev
&& prev
!= reverse_bytes
)
5802 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5807 case OPTION_FILE_ALIGNMENT
:
5808 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5814 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5816 || (*end
!= '.' && *end
!= '\0'))
5817 non_fatal (_("%s: invalid reserve value for --heap"),
5819 else if (*end
!= '\0')
5821 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5823 non_fatal (_("%s: invalid commit value for --heap"),
5829 case OPTION_IMAGE_BASE
:
5830 pe_image_base
= parse_vma (optarg
, "--image-base");
5833 case OPTION_PE_SECTION_ALIGNMENT
:
5834 pe_section_alignment
= parse_vma (optarg
,
5835 "--section-alignment");
5838 case OPTION_SUBSYSTEM
:
5839 set_pe_subsystem (optarg
);
5845 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5847 || (*end
!= '.' && *end
!= '\0'))
5848 non_fatal (_("%s: invalid reserve value for --stack"),
5850 else if (*end
!= '\0')
5852 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5854 non_fatal (_("%s: invalid commit value for --stack"),
5860 case OPTION_VERILOG_DATA_WIDTH
:
5861 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5862 if (VerilogDataWidth
< 1)
5863 fatal (_("verilog data width must be at least 1 byte"));
5867 /* We've been given a long option. */
5872 copy_usage (stdout
, 0);
5875 copy_usage (stderr
, 1);
5879 if (use_globalize
&& use_keep_global
)
5880 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5889 print_version ("objcopy");
5891 if (interleave
&& copy_byte
== -1)
5892 fatal (_("interleave start byte must be set with --byte"));
5894 if (copy_byte
>= interleave
)
5895 fatal (_("byte number must be less than interleave"));
5897 if (copy_width
> interleave
- copy_byte
)
5898 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5900 if (optind
== argc
|| optind
+ 2 < argc
)
5901 copy_usage (stderr
, 1);
5903 input_filename
= argv
[optind
];
5904 if (optind
+ 1 < argc
)
5905 output_filename
= argv
[optind
+ 1];
5907 default_deterministic ();
5909 /* Default is to strip no symbols. */
5910 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5911 strip_symbols
= STRIP_NONE
;
5913 if (output_target
== NULL
)
5914 output_target
= input_target
;
5916 /* Convert input EFI target to PEI target. */
5917 if (input_target
!= NULL
5918 && startswith (input_target
, "efi-"))
5920 if (convert_efi_target (&input_target
) < 0)
5921 fatal (_("unknown input EFI target: %s"), input_target
);
5924 /* Convert output EFI target to PEI target. */
5925 if (output_target
!= NULL
5926 && startswith (output_target
, "efi-"))
5928 int subsys
= convert_efi_target (&output_target
);
5931 fatal (_("unknown output EFI target: %s"), output_target
);
5932 if (pe_subsystem
== -1)
5933 pe_subsystem
= subsys
;
5934 if (pe_file_alignment
== (bfd_vma
) -1)
5935 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5936 if (pe_section_alignment
== (bfd_vma
) -1)
5937 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5940 /* If there is no destination file, or the source and destination files
5941 are the same, then create a temp and copy the result into the input. */
5943 if (output_filename
== NULL
5944 || filename_cmp (input_filename
, output_filename
) == 0)
5946 tmpname
= make_tempname (input_filename
, &tmpfd
);
5948 copyfd
= dup (tmpfd
);
5951 tmpname
= output_filename
;
5953 if (tmpname
== NULL
)
5955 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5956 input_filename
, strerror (errno
));
5959 copy_file (input_filename
, tmpname
, tmpfd
, &statbuf
, input_target
,
5960 output_target
, input_arch
);
5963 const char *oname
= output_filename
? output_filename
: input_filename
;
5964 status
= smart_rename (tmpname
, oname
, copyfd
,
5965 &statbuf
, preserve_dates
) != 0;
5971 unlink_if_ordinary (tmpname
);
5974 if (tmpname
!= output_filename
)
5979 struct section_list
*p
;
5981 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5985 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5986 /* xgettext:c-format */
5987 non_fatal (_("%s %s%c0x%" PRIx64
" never used"),
5988 "--change-section-vma",
5990 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5991 (uint64_t) p
->vma_val
);
5993 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5994 /* xgettext:c-format */
5995 non_fatal (_("%s %s%c0x%" PRIx64
" never used"),
5996 "--change-section-lma",
5998 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
5999 (uint64_t) p
->lma_val
);
6004 free (strip_specific_buffer
);
6005 free (strip_unneeded_buffer
);
6006 free (keep_specific_buffer
);
6007 free (localize_specific_buffer
);
6008 free (globalize_specific_buffer
);
6009 free (keepglobal_specific_buffer
);
6010 free (weaken_specific_buffer
);
6016 main (int argc
, char *argv
[])
6018 #ifdef HAVE_LC_MESSAGES
6019 setlocale (LC_MESSAGES
, "");
6021 setlocale (LC_CTYPE
, "");
6022 bindtextdomain (PACKAGE
, LOCALEDIR
);
6023 textdomain (PACKAGE
);
6025 program_name
= argv
[0];
6026 xmalloc_set_program_name (program_name
);
6028 START_PROGRESS (program_name
, 0);
6030 expandargv (&argc
, &argv
);
6032 strip_symbols
= STRIP_UNDEF
;
6033 discard_locals
= LOCALS_UNDEF
;
6035 if (bfd_init () != BFD_INIT_MAGIC
)
6036 fatal (_("fatal error: libbfd ABI mismatch"));
6037 set_default_bfd_target ();
6041 int i
= strlen (program_name
);
6042 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6043 /* Drop the .exe suffix, if any. */
6044 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6047 program_name
[i
] = '\0';
6050 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6053 create_symbol_htabs ();
6054 xatexit (delete_symbol_htabs
);
6057 bfd_set_error_program_name (argv
[0]);
6060 strip_main (argc
, argv
);
6062 copy_main (argc
, argv
);
6064 END_PROGRESS (program_name
);