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,
236 } do_debug_sections
= nothing
;
238 /* Whether to generate ELF common symbols with the STT_COMMON type. */
239 static enum bfd_link_elf_stt_common do_elf_stt_common
= unchanged
;
241 /* Whether to change the leading character in symbol names. */
242 static bool change_leading_char
= false;
244 /* Whether to remove the leading character from global symbol names. */
245 static bool remove_leading_char
= false;
247 /* Whether to permit wildcard in symbol comparison. */
248 static bool wildcard
= false;
250 /* True if --localize-hidden is in effect. */
251 static bool localize_hidden
= false;
253 /* List of symbols to strip, keep, localize, keep-global, weaken,
255 static htab_t strip_specific_htab
= NULL
;
256 static htab_t strip_unneeded_htab
= NULL
;
257 static htab_t keep_specific_htab
= NULL
;
258 static htab_t localize_specific_htab
= NULL
;
259 static htab_t globalize_specific_htab
= NULL
;
260 static htab_t keepglobal_specific_htab
= NULL
;
261 static htab_t weaken_specific_htab
= NULL
;
262 static htab_t redefine_specific_htab
= NULL
;
263 static htab_t redefine_specific_reverse_htab
= NULL
;
264 static struct addsym_node
*add_sym_list
= NULL
, **add_sym_tail
= &add_sym_list
;
265 static int add_symbols
= 0;
267 static char *strip_specific_buffer
= NULL
;
268 static char *strip_unneeded_buffer
= NULL
;
269 static char *keep_specific_buffer
= NULL
;
270 static char *localize_specific_buffer
= NULL
;
271 static char *globalize_specific_buffer
= NULL
;
272 static char *keepglobal_specific_buffer
= NULL
;
273 static char *weaken_specific_buffer
= NULL
;
275 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
276 static bool weaken
= false;
278 /* If this is TRUE, we retain BSF_FILE symbols. */
279 static bool keep_file_symbols
= false;
281 /* Prefix symbols/sections. */
282 static char *prefix_symbols_string
= 0;
283 static char *prefix_sections_string
= 0;
284 static char *prefix_alloc_sections_string
= 0;
286 /* True if --extract-symbol was passed on the command line. */
287 static bool extract_symbol
= false;
289 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
290 of <reverse_bytes> bytes within each output section. */
291 static int reverse_bytes
= 0;
293 /* For Coff objects, we may want to allow or disallow long section names,
294 or preserve them where found in the inputs. Debug info relies on them. */
295 enum long_section_name_handling
302 /* The default long section handling mode is to preserve them.
303 This is also the only behaviour for 'strip'. */
304 static enum long_section_name_handling long_section_names
= KEEP
;
306 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
307 enum command_line_switch
309 OPTION_ADD_SECTION
=150,
310 OPTION_ADD_GNU_DEBUGLINK
,
312 OPTION_ALT_MACH_CODE
,
313 OPTION_CHANGE_ADDRESSES
,
314 OPTION_CHANGE_LEADING_CHAR
,
315 OPTION_CHANGE_SECTION_ADDRESS
,
316 OPTION_CHANGE_SECTION_LMA
,
317 OPTION_CHANGE_SECTION_VMA
,
319 OPTION_CHANGE_WARNINGS
,
320 OPTION_COMPRESS_DEBUG_SECTIONS
,
322 OPTION_DECOMPRESS_DEBUG_SECTIONS
,
324 OPTION_ELF_STT_COMMON
,
326 OPTION_EXTRACT_SYMBOL
,
327 OPTION_FILE_ALIGNMENT
,
330 OPTION_GLOBALIZE_SYMBOL
,
331 OPTION_GLOBALIZE_SYMBOLS
,
335 OPTION_INTERLEAVE_WIDTH
,
336 OPTION_KEEPGLOBAL_SYMBOLS
,
337 OPTION_KEEP_FILE_SYMBOLS
,
340 OPTION_KEEP_SECTION_SYMBOLS
,
341 OPTION_LOCALIZE_HIDDEN
,
342 OPTION_LOCALIZE_SYMBOLS
,
343 OPTION_LONG_SECTION_NAMES
,
345 OPTION_NO_MERGE_NOTES
,
346 OPTION_NO_CHANGE_WARNINGS
,
347 OPTION_ONLY_KEEP_DEBUG
,
349 OPTION_PREFIX_ALLOC_SECTIONS
,
350 OPTION_PREFIX_SECTIONS
,
351 OPTION_PREFIX_SYMBOLS
,
353 OPTION_READONLY_TEXT
,
355 OPTION_REDEFINE_SYMS
,
356 OPTION_REMOVE_LEADING_CHAR
,
357 OPTION_REMOVE_RELOCS
,
358 OPTION_RENAME_SECTION
,
359 OPTION_REVERSE_BYTES
,
360 OPTION_PE_SECTION_ALIGNMENT
,
361 OPTION_SET_SECTION_FLAGS
,
362 OPTION_SET_SECTION_ALIGNMENT
,
368 OPTION_STRIP_SYMBOLS
,
369 OPTION_STRIP_UNNEEDED
,
370 OPTION_STRIP_UNNEEDED_SYMBOL
,
371 OPTION_STRIP_UNNEEDED_SYMBOLS
,
373 OPTION_UPDATE_SECTION
,
374 OPTION_VERILOG_DATA_WIDTH
,
376 OPTION_WEAKEN_SYMBOLS
,
380 /* Options to handle if running as "strip". */
382 static struct option strip_options
[] =
384 {"disable-deterministic-archives", no_argument
, 0, 'U'},
385 {"discard-all", no_argument
, 0, 'x'},
386 {"discard-locals", no_argument
, 0, 'X'},
387 {"enable-deterministic-archives", no_argument
, 0, 'D'},
388 {"format", required_argument
, 0, 'F'}, /* Obsolete */
389 {"help", no_argument
, 0, 'h'},
390 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
391 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
392 {"input-target", required_argument
, 0, 'I'},
393 {"keep-section-symbols", no_argument
, 0, OPTION_KEEP_SECTION_SYMBOLS
},
394 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
395 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
396 {"keep-symbol", required_argument
, 0, 'K'},
397 {"merge-notes", no_argument
, 0, 'M'},
398 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
399 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
400 {"output-file", required_argument
, 0, 'o'},
401 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
402 {"output-target", required_argument
, 0, 'O'},
403 {"preserve-dates", no_argument
, 0, 'p'},
404 {"remove-section", required_argument
, 0, 'R'},
405 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
406 {"strip-all", no_argument
, 0, 's'},
407 {"strip-debug", no_argument
, 0, 'S'},
408 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
409 {"strip-symbol", required_argument
, 0, 'N'},
410 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
411 {"target", required_argument
, 0, 'F'},
412 {"verbose", no_argument
, 0, 'v'},
413 {"version", no_argument
, 0, 'V'},
414 {"wildcard", no_argument
, 0, 'w'},
415 {0, no_argument
, 0, 0}
418 /* Options to handle if running as "objcopy". */
420 static struct option copy_options
[] =
422 {"add-gnu-debuglink", required_argument
, 0, OPTION_ADD_GNU_DEBUGLINK
},
423 {"add-section", required_argument
, 0, OPTION_ADD_SECTION
},
424 {"add-symbol", required_argument
, 0, OPTION_ADD_SYMBOL
},
425 {"adjust-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
426 {"adjust-start", required_argument
, 0, OPTION_CHANGE_START
},
427 {"adjust-vma", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
428 {"adjust-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
429 {"alt-machine-code", required_argument
, 0, OPTION_ALT_MACH_CODE
},
430 {"binary-architecture", required_argument
, 0, 'B'},
431 {"byte", required_argument
, 0, 'b'},
432 {"change-addresses", required_argument
, 0, OPTION_CHANGE_ADDRESSES
},
433 {"change-leading-char", no_argument
, 0, OPTION_CHANGE_LEADING_CHAR
},
434 {"change-section-address", required_argument
, 0, OPTION_CHANGE_SECTION_ADDRESS
},
435 {"change-section-lma", required_argument
, 0, OPTION_CHANGE_SECTION_LMA
},
436 {"change-section-vma", required_argument
, 0, OPTION_CHANGE_SECTION_VMA
},
437 {"change-start", required_argument
, 0, OPTION_CHANGE_START
},
438 {"change-warnings", no_argument
, 0, OPTION_CHANGE_WARNINGS
},
439 {"compress-debug-sections", optional_argument
, 0, OPTION_COMPRESS_DEBUG_SECTIONS
},
440 {"debugging", no_argument
, 0, OPTION_DEBUGGING
},
441 {"decompress-debug-sections", no_argument
, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS
},
442 {"disable-deterministic-archives", no_argument
, 0, 'U'},
443 {"discard-all", no_argument
, 0, 'x'},
444 {"discard-locals", no_argument
, 0, 'X'},
445 {"dump-section", required_argument
, 0, OPTION_DUMP_SECTION
},
446 {"elf-stt-common", required_argument
, 0, OPTION_ELF_STT_COMMON
},
447 {"enable-deterministic-archives", no_argument
, 0, 'D'},
448 {"extract-dwo", no_argument
, 0, OPTION_EXTRACT_DWO
},
449 {"extract-symbol", no_argument
, 0, OPTION_EXTRACT_SYMBOL
},
450 {"file-alignment", required_argument
, 0, OPTION_FILE_ALIGNMENT
},
451 {"format", required_argument
, 0, 'F'}, /* Obsolete */
452 {"gap-fill", required_argument
, 0, OPTION_GAP_FILL
},
453 {"globalize-symbol", required_argument
, 0, OPTION_GLOBALIZE_SYMBOL
},
454 {"globalize-symbols", required_argument
, 0, OPTION_GLOBALIZE_SYMBOLS
},
455 {"heap", required_argument
, 0, OPTION_HEAP
},
456 {"help", no_argument
, 0, 'h'},
457 {"image-base", required_argument
, 0 , OPTION_IMAGE_BASE
},
458 {"impure", no_argument
, 0, OPTION_IMPURE
},
459 {"info", no_argument
, 0, OPTION_FORMATS_INFO
},
460 {"input-format", required_argument
, 0, 'I'}, /* Obsolete */
461 {"input-target", required_argument
, 0, 'I'},
462 {"interleave", optional_argument
, 0, 'i'},
463 {"interleave-width", required_argument
, 0, OPTION_INTERLEAVE_WIDTH
},
464 {"keep-file-symbols", no_argument
, 0, OPTION_KEEP_FILE_SYMBOLS
},
465 {"keep-global-symbol", required_argument
, 0, 'G'},
466 {"keep-global-symbols", required_argument
, 0, OPTION_KEEPGLOBAL_SYMBOLS
},
467 {"keep-section", required_argument
, 0, OPTION_KEEP_SECTION
},
468 {"keep-symbol", required_argument
, 0, 'K'},
469 {"keep-symbols", required_argument
, 0, OPTION_KEEP_SYMBOLS
},
470 {"keep-section-symbols", required_argument
, 0, OPTION_KEEP_SECTION_SYMBOLS
},
471 {"localize-hidden", no_argument
, 0, OPTION_LOCALIZE_HIDDEN
},
472 {"localize-symbol", required_argument
, 0, 'L'},
473 {"localize-symbols", required_argument
, 0, OPTION_LOCALIZE_SYMBOLS
},
474 {"long-section-names", required_argument
, 0, OPTION_LONG_SECTION_NAMES
},
475 {"merge-notes", no_argument
, 0, 'M'},
476 {"no-merge-notes", no_argument
, 0, OPTION_NO_MERGE_NOTES
},
477 {"no-adjust-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
478 {"no-change-warnings", no_argument
, 0, OPTION_NO_CHANGE_WARNINGS
},
479 {"only-keep-debug", no_argument
, 0, OPTION_ONLY_KEEP_DEBUG
},
480 {"only-section", required_argument
, 0, 'j'},
481 {"output-format", required_argument
, 0, 'O'}, /* Obsolete */
482 {"output-target", required_argument
, 0, 'O'},
483 {"pad-to", required_argument
, 0, OPTION_PAD_TO
},
484 {"prefix-alloc-sections", required_argument
, 0, OPTION_PREFIX_ALLOC_SECTIONS
},
485 {"prefix-sections", required_argument
, 0, OPTION_PREFIX_SECTIONS
},
486 {"prefix-symbols", required_argument
, 0, OPTION_PREFIX_SYMBOLS
},
487 {"preserve-dates", no_argument
, 0, 'p'},
488 {"pure", no_argument
, 0, OPTION_PURE
},
489 {"readonly-text", no_argument
, 0, OPTION_READONLY_TEXT
},
490 {"redefine-sym", required_argument
, 0, OPTION_REDEFINE_SYM
},
491 {"redefine-syms", required_argument
, 0, OPTION_REDEFINE_SYMS
},
492 {"remove-leading-char", no_argument
, 0, OPTION_REMOVE_LEADING_CHAR
},
493 {"remove-section", required_argument
, 0, 'R'},
494 {"remove-relocations", required_argument
, 0, OPTION_REMOVE_RELOCS
},
495 {"rename-section", required_argument
, 0, OPTION_RENAME_SECTION
},
496 {"reverse-bytes", required_argument
, 0, OPTION_REVERSE_BYTES
},
497 {"section-alignment", required_argument
, 0, OPTION_PE_SECTION_ALIGNMENT
},
498 {"set-section-flags", required_argument
, 0, OPTION_SET_SECTION_FLAGS
},
499 {"set-section-alignment", required_argument
, 0, OPTION_SET_SECTION_ALIGNMENT
},
500 {"set-start", required_argument
, 0, OPTION_SET_START
},
501 {"srec-forceS3", no_argument
, 0, OPTION_SREC_FORCES3
},
502 {"srec-len", required_argument
, 0, OPTION_SREC_LEN
},
503 {"stack", required_argument
, 0, OPTION_STACK
},
504 {"strip-all", no_argument
, 0, 'S'},
505 {"strip-debug", no_argument
, 0, 'g'},
506 {"strip-dwo", no_argument
, 0, OPTION_STRIP_DWO
},
507 {"strip-symbol", required_argument
, 0, 'N'},
508 {"strip-symbols", required_argument
, 0, OPTION_STRIP_SYMBOLS
},
509 {"strip-unneeded", no_argument
, 0, OPTION_STRIP_UNNEEDED
},
510 {"strip-unneeded-symbol", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOL
},
511 {"strip-unneeded-symbols", required_argument
, 0, OPTION_STRIP_UNNEEDED_SYMBOLS
},
512 {"subsystem", required_argument
, 0, OPTION_SUBSYSTEM
},
513 {"target", required_argument
, 0, 'F'},
514 {"update-section", required_argument
, 0, OPTION_UPDATE_SECTION
},
515 {"verbose", no_argument
, 0, 'v'},
516 {"verilog-data-width", required_argument
, 0, OPTION_VERILOG_DATA_WIDTH
},
517 {"version", no_argument
, 0, 'V'},
518 {"weaken", no_argument
, 0, OPTION_WEAKEN
},
519 {"weaken-symbol", required_argument
, 0, 'W'},
520 {"weaken-symbols", required_argument
, 0, OPTION_WEAKEN_SYMBOLS
},
521 {"wildcard", no_argument
, 0, 'w'},
522 {"writable-text", no_argument
, 0, OPTION_WRITABLE_TEXT
},
523 {0, no_argument
, 0, 0}
527 extern char *program_name
;
529 /* This flag distinguishes between strip and objcopy:
530 1 means this is 'strip'; 0 means this is 'objcopy'.
531 -1 means if we should use argv[0] to decide. */
534 /* The maximum length of an S record. This variable is defined in srec.c
535 and can be modified by the --srec-len parameter. */
536 extern unsigned int _bfd_srec_len
;
538 /* Restrict the generation of Srecords to type S3 only.
539 This variable is defined in bfd/srec.c and can be toggled
540 on by the --srec-forceS3 command line switch. */
541 extern bool _bfd_srec_forceS3
;
543 /* Width of data in bytes for verilog output.
544 This variable is declared in bfd/verilog.c and can be modified by
545 the --verilog-data-width parameter. */
546 extern unsigned int VerilogDataWidth
;
548 /* Forward declarations. */
549 static void setup_section (bfd
*, asection
*, void *);
550 static void setup_bfd_headers (bfd
*, bfd
*);
551 static void copy_relocations_in_section (bfd
*, asection
*, void *);
552 static void copy_section (bfd
*, asection
*, void *);
553 static void get_sections (bfd
*, asection
*, void *);
554 static int compare_section_lma (const void *, const void *);
555 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
556 static bool write_debugging_info (bfd
*, void *, long *, asymbol
***);
557 static const char *lookup_sym_redefinition (const char *);
558 static const char *find_section_rename (const char *, flagword
*);
560 ATTRIBUTE_NORETURN
static void
561 copy_usage (FILE *stream
, int exit_status
)
563 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
564 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
565 fprintf (stream
, _(" The options are:\n"));
566 fprintf (stream
, _("\
567 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
568 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
569 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
570 -F --target <bfdname> Set both input and output format to <bfdname>\n\
571 --debugging Convert debugging information, if possible\n\
572 -p --preserve-dates Copy modified/access timestamps to the output\n"));
573 if (DEFAULT_AR_DETERMINISTIC
)
574 fprintf (stream
, _("\
575 -D --enable-deterministic-archives\n\
576 Produce deterministic output when stripping archives (default)\n\
577 -U --disable-deterministic-archives\n\
578 Disable -D behavior\n"));
580 fprintf (stream
, _("\
581 -D --enable-deterministic-archives\n\
582 Produce deterministic output when stripping archives\n\
583 -U --disable-deterministic-archives\n\
584 Disable -D behavior (default)\n"));
585 fprintf (stream
, _("\
586 -j --only-section <name> Only copy section <name> into the output\n\
587 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
588 -R --remove-section <name> Remove section <name> from the output\n\
589 --remove-relocations <name> Remove relocations from section <name>\n\
590 -S --strip-all Remove all symbol and relocation information\n\
591 -g --strip-debug Remove all debugging symbols & sections\n\
592 --strip-dwo Remove all DWO sections\n\
593 --strip-unneeded Remove all symbols not needed by relocations\n\
594 -N --strip-symbol <name> Do not copy symbol <name>\n\
595 --strip-unneeded-symbol <name>\n\
596 Do not copy symbol <name> unless needed by\n\
598 --only-keep-debug Strip everything but the debug information\n\
599 --extract-dwo Copy only DWO sections\n\
600 --extract-symbol Remove section contents but keep symbols\n\
601 --keep-section <name> Do not strip section <name>\n\
602 -K --keep-symbol <name> Do not strip symbol <name>\n\
603 --keep-section-symbols Do not strip section symbols\n\
604 --keep-file-symbols Do not strip file symbol(s)\n\
605 --localize-hidden Turn all ELF hidden symbols into locals\n\
606 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
607 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
608 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
609 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
610 --weaken Force all global symbols to be marked as weak\n\
611 -w --wildcard Permit wildcard in symbol comparison\n\
612 -x --discard-all Remove all non-global symbols\n\
613 -X --discard-locals Remove any compiler-generated symbols\n\
614 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
615 --interleave-width <number> Set N for --interleave\n\
616 -b --byte <num> Select byte <num> in every interleaved block\n\
617 --gap-fill <val> Fill gaps between sections with <val>\n\
618 --pad-to <addr> Pad the last section up to address <addr>\n\
619 --set-start <addr> Set the start address to <addr>\n\
620 {--change-start|--adjust-start} <incr>\n\
621 Add <incr> to the start address\n\
622 {--change-addresses|--adjust-vma} <incr>\n\
623 Add <incr> to LMA, VMA and start addresses\n\
624 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
625 Change LMA and VMA of section <name> by <val>\n\
626 --change-section-lma <name>{=|+|-}<val>\n\
627 Change the LMA of section <name> by <val>\n\
628 --change-section-vma <name>{=|+|-}<val>\n\
629 Change the VMA of section <name> by <val>\n\
630 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
631 Warn if a named section does not exist\n\
632 --set-section-flags <name>=<flags>\n\
633 Set section <name>'s properties to <flags>\n\
634 --set-section-alignment <name>=<align>\n\
635 Set section <name>'s alignment to <align> bytes\n\
636 --add-section <name>=<file> Add section <name> found in <file> to output\n\
637 --update-section <name>=<file>\n\
638 Update contents of section <name> with\n\
639 contents found in <file>\n\
640 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
641 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
642 --long-section-names {enable|disable|keep}\n\
643 Handle long section names in Coff objects.\n\
644 --change-leading-char Force output format's leading character style\n\
645 --remove-leading-char Remove leading character from global symbols\n\
646 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
647 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
648 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
650 --srec-len <number> Restrict the length of generated Srecords\n\
651 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
652 --strip-symbols <file> -N for all symbols listed in <file>\n\
653 --strip-unneeded-symbols <file>\n\
654 --strip-unneeded-symbol for all symbols listed\n\
656 --keep-symbols <file> -K for all symbols listed in <file>\n\
657 --localize-symbols <file> -L for all symbols listed in <file>\n\
658 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
659 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
660 --weaken-symbols <file> -W for all symbols listed in <file>\n\
661 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
662 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
663 --writable-text Mark the output text as writable\n\
664 --readonly-text Make the output text write protected\n\
665 --pure Mark the output file as demand paged\n\
666 --impure Mark the output file as impure\n\
667 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
668 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
669 --prefix-alloc-sections <prefix>\n\
670 Add <prefix> to start of every allocatable\n\
672 --file-alignment <num> Set PE file alignment to <num>\n\
673 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
675 --image-base <address> Set PE image base to <address>\n\
676 --section-alignment <num> Set PE section alignment to <num>\n\
677 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
679 --subsystem <name>[:<version>]\n\
680 Set PE subsystem to <name> [& <version>]\n\
681 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
682 Compress DWARF debug sections using zlib\n\
683 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
684 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
686 --verilog-data-width <number> Specifies data width, in bytes, for verilog output\n\
687 -M --merge-notes Remove redundant entries in note sections\n\
688 --no-merge-notes Do not attempt to remove redundant notes (default)\n\
689 -v --verbose List all object files modified\n\
690 @<file> Read options from <file>\n\
691 -V --version Display this program's version number\n\
692 -h --help Display this output\n\
693 --info List object formats & architectures supported\n\
695 list_supported_targets (program_name
, stream
);
696 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
697 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
701 ATTRIBUTE_NORETURN
static void
702 strip_usage (FILE *stream
, int exit_status
)
704 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
705 fprintf (stream
, _(" Removes symbols and sections from files\n"));
706 fprintf (stream
, _(" The options are:\n"));
707 fprintf (stream
, _("\
708 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
709 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
710 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
711 -p --preserve-dates Copy modified/access timestamps to the output\n\
713 if (DEFAULT_AR_DETERMINISTIC
)
714 fprintf (stream
, _("\
715 -D --enable-deterministic-archives\n\
716 Produce deterministic output when stripping archives (default)\n\
717 -U --disable-deterministic-archives\n\
718 Disable -D behavior\n"));
720 fprintf (stream
, _("\
721 -D --enable-deterministic-archives\n\
722 Produce deterministic output when stripping archives\n\
723 -U --disable-deterministic-archives\n\
724 Disable -D behavior (default)\n"));
725 fprintf (stream
, _("\
726 -R --remove-section=<name> Also remove section <name> from the output\n\
727 --remove-relocations <name> Remove relocations from section <name>\n\
728 -s --strip-all Remove all symbol and relocation information\n\
729 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
730 --strip-dwo Remove all DWO sections\n\
731 --strip-unneeded Remove all symbols not needed by relocations\n\
732 --only-keep-debug Strip everything but the debug information\n\
733 -M --merge-notes Remove redundant entries in note sections (default)\n\
734 --no-merge-notes Do not attempt to remove redundant notes\n\
735 -N --strip-symbol=<name> Do not copy symbol <name>\n\
736 --keep-section=<name> Do not strip section <name>\n\
737 -K --keep-symbol=<name> Do not strip symbol <name>\n\
738 --keep-section-symbols Do not strip section symbols\n\
739 --keep-file-symbols Do not strip file symbol(s)\n\
740 -w --wildcard Permit wildcard in symbol comparison\n\
741 -x --discard-all Remove all non-global symbols\n\
742 -X --discard-locals Remove any compiler-generated symbols\n\
743 -v --verbose List all object files modified\n\
744 -V --version Display this program's version number\n\
745 -h --help Display this output\n\
746 --info List object formats & architectures supported\n\
747 -o <file> Place stripped output into <file>\n\
750 list_supported_targets (program_name
, stream
);
751 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
752 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
756 /* Parse section flags into a flagword, with a fatal error if the
757 string can't be parsed. */
760 parse_flags (const char *s
)
770 snext
= strchr (s
, ',');
780 #define PARSE_FLAG(fname,fval) \
781 else if (strncasecmp (fname, s, len) == 0) ret |= fval
782 PARSE_FLAG ("alloc", SEC_ALLOC
);
783 PARSE_FLAG ("load", SEC_LOAD
);
784 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
785 PARSE_FLAG ("readonly", SEC_READONLY
);
786 PARSE_FLAG ("debug", SEC_DEBUGGING
);
787 PARSE_FLAG ("code", SEC_CODE
);
788 PARSE_FLAG ("data", SEC_DATA
);
789 PARSE_FLAG ("rom", SEC_ROM
);
790 PARSE_FLAG ("exclude", SEC_EXCLUDE
);
791 PARSE_FLAG ("share", SEC_COFF_SHARED
);
792 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
793 PARSE_FLAG ("merge", SEC_MERGE
);
794 PARSE_FLAG ("strings", SEC_STRINGS
);
800 copy
= (char *) xmalloc (len
+ 1);
801 strncpy (copy
, s
, len
);
803 non_fatal (_("unrecognized section flag `%s'"), copy
);
804 fatal (_("supported flags: %s"),
805 "alloc, load, noload, readonly, debug, code, data, rom, exclude, share, contents, merge, strings");
815 /* Parse symbol flags into a flagword, with a fatal error if the
816 string can't be parsed. */
819 parse_symflags (const char *s
, const char **other
)
829 snext
= strchr (s
, ',');
838 #define PARSE_FLAG(fname, fval) \
839 else if (len == sizeof fname - 1 \
840 && strncasecmp (fname, s, len) == 0) \
843 #define PARSE_OTHER(fname, fval) \
844 else if (len >= sizeof fname \
845 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
846 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
849 PARSE_FLAG ("local", BSF_LOCAL
);
850 PARSE_FLAG ("global", BSF_GLOBAL
);
851 PARSE_FLAG ("export", BSF_EXPORT
);
852 PARSE_FLAG ("debug", BSF_DEBUGGING
);
853 PARSE_FLAG ("function", BSF_FUNCTION
);
854 PARSE_FLAG ("weak", BSF_WEAK
);
855 PARSE_FLAG ("section", BSF_SECTION_SYM
);
856 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
857 PARSE_FLAG ("warning", BSF_WARNING
);
858 PARSE_FLAG ("indirect", BSF_INDIRECT
);
859 PARSE_FLAG ("file", BSF_FILE
);
860 PARSE_FLAG ("object", BSF_OBJECT
);
861 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
862 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
863 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
864 PARSE_OTHER ("before=", *other
);
872 copy
= (char *) xmalloc (len
+ 1);
873 strncpy (copy
, s
, len
);
875 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
876 fatal (_("supported flags: %s"),
877 "local, global, export, debug, function, weak, section, "
878 "constructor, warning, indirect, file, object, synthetic, "
879 "indirect-function, unique-object, before=<othersym>");
889 /* Find and optionally add an entry in the change_sections list.
891 We need to be careful in how we match section names because of the support
892 for wildcard characters. For example suppose that the user has invoked
895 --set-section-flags .debug_*=debug
896 --set-section-flags .debug_str=readonly,debug
897 --change-section-address .debug_*ranges=0x1000
899 With the idea that all debug sections will receive the DEBUG flag, the
900 .debug_str section will also receive the READONLY flag and the
901 .debug_ranges and .debug_aranges sections will have their address set to
902 0x1000. (This may not make much sense, but it is just an example).
904 When adding the section name patterns to the section list we need to make
905 sure that previous entries do not match with the new entry, unless the
906 match is exact. (In which case we assume that the user is overriding
907 the previous entry with the new context).
909 When matching real section names to the section list we make use of the
910 wildcard characters, but we must do so in context. Eg if we are setting
911 section addresses then we match for .debug_ranges but not for .debug_info.
913 Finally, if ADD is false and we do find a match, we mark the section list
916 static struct section_list
*
917 find_section_list (const char *name
, bool add
, unsigned int context
)
919 struct section_list
*p
, *match
= NULL
;
921 /* assert ((context & ((1 << 7) - 1)) != 0); */
923 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
927 if (strcmp (p
->pattern
, name
) == 0)
929 /* Check for context conflicts. */
930 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
931 && (context
& SECTION_CONTEXT_COPY
))
932 || ((context
& SECTION_CONTEXT_REMOVE
)
933 && (p
->context
& SECTION_CONTEXT_COPY
)))
934 fatal (_("error: %s both copied and removed"), name
);
936 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
937 && (context
& SECTION_CONTEXT_ALTER_VMA
))
938 || ((context
& SECTION_CONTEXT_SET_VMA
)
939 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
940 fatal (_("error: %s both sets and alters VMA"), name
);
942 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
943 && (context
& SECTION_CONTEXT_ALTER_LMA
))
944 || ((context
& SECTION_CONTEXT_SET_LMA
)
945 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
946 fatal (_("error: %s both sets and alters LMA"), name
);
948 /* Extend the context. */
949 p
->context
|= context
;
953 /* If we are not adding a new name/pattern then
954 only check for a match if the context applies. */
955 else if (p
->context
& context
)
957 /* We could check for the presence of wildchar characters
958 first and choose between calling strcmp and fnmatch,
959 but is that really worth it ? */
960 if (p
->pattern
[0] == '!')
962 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
970 if (fnmatch (p
->pattern
, name
, 0) == 0)
986 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
989 p
->context
= context
;
994 p
->next
= change_sections
;
1000 /* S1 is the entry node already in the table, S2 is the key node. */
1003 eq_string_redefnode (const void *s1
, const void *s2
)
1005 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
1006 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
1007 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
1010 /* P is redefine node. Hash value is generated from its "source" filed. */
1013 htab_hash_redefnode (const void *p
)
1015 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
1016 return htab_hash_string (redefnode
->source
);
1019 /* Create hashtab used for redefine node. */
1022 create_symbol2redef_htab (void)
1024 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
1029 create_symbol_htab (void)
1031 return htab_create_alloc (16, htab_hash_string
, htab_eq_string
, NULL
,
1036 create_symbol_htabs (void)
1038 strip_specific_htab
= create_symbol_htab ();
1039 strip_unneeded_htab
= create_symbol_htab ();
1040 keep_specific_htab
= create_symbol_htab ();
1041 localize_specific_htab
= create_symbol_htab ();
1042 globalize_specific_htab
= create_symbol_htab ();
1043 keepglobal_specific_htab
= create_symbol_htab ();
1044 weaken_specific_htab
= create_symbol_htab ();
1045 redefine_specific_htab
= create_symbol2redef_htab ();
1046 /* As there is no bidirectional hash table in libiberty, need a reverse table
1047 to check duplicated target string. */
1048 redefine_specific_reverse_htab
= create_symbol_htab ();
1051 /* Add a symbol to strip_specific_list. */
1054 add_specific_symbol (const char *name
, htab_t htab
)
1056 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1059 /* Like add_specific_symbol, but the element type is void *. */
1062 add_specific_symbol_node (const void *node
, htab_t htab
)
1064 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1067 /* Add symbols listed in `filename' to strip_specific_list. */
1069 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1070 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1073 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1079 unsigned int line_count
;
1081 size
= get_file_size (filename
);
1088 buffer
= (char *) xmalloc (size
+ 2);
1089 f
= fopen (filename
, FOPEN_RT
);
1091 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1093 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1094 fatal (_("%s: fread failed"), filename
);
1097 buffer
[size
] = '\n';
1098 buffer
[size
+ 1] = '\0';
1102 for (line
= buffer
; * line
!= '\0'; line
++)
1107 int finished
= false;
1109 for (eol
= line
;; eol
++)
1115 /* Cope with \n\r. */
1123 /* Cope with \r\n. */
1134 /* Line comment, Terminate the line here, in case a
1135 name is present and then allow the rest of the
1136 loop to find the real end of the line. */
1148 /* A name may now exist somewhere between 'line' and 'eol'.
1149 Strip off leading whitespace and trailing whitespace,
1150 then add it to the list. */
1151 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1153 for (name_end
= name
;
1154 (! IS_WHITESPACE (* name_end
))
1155 && (! IS_LINE_TERMINATOR (* name_end
));
1159 if (! IS_LINE_TERMINATOR (* name_end
))
1163 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1166 if (! IS_LINE_TERMINATOR (* extra
))
1167 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1168 filename
, line_count
);
1173 if (name_end
> name
)
1174 add_specific_symbol (name
, htab
);
1176 /* Advance line pointer to end of line. The 'eol ++' in the for
1177 loop above will then advance us to the start of the next line. */
1182 /* Do not free the buffer. Parts of it will have been referenced
1183 in the calls to add_specific_symbol. */
1187 /* See whether a symbol should be stripped or kept
1188 based on strip_specific_list and keep_symbols. */
1191 is_specified_symbol_predicate (void **slot
, void *data
)
1193 struct is_specified_symbol_predicate_data
*d
=
1194 (struct is_specified_symbol_predicate_data
*) data
;
1195 const char *slot_name
= (char *) *slot
;
1197 if (*slot_name
!= '!')
1199 if (! fnmatch (slot_name
, d
->name
, 0))
1202 /* Continue traversal, there might be a non-match rule. */
1208 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1211 /* Stop traversal. */
1216 /* Continue traversal. */
1221 is_specified_symbol (const char *name
, htab_t htab
)
1225 struct is_specified_symbol_predicate_data data
;
1230 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1235 return htab_find (htab
, name
) != NULL
;
1238 /* Return a pointer to the symbol used as a signature for GROUP. */
1241 group_signature (asection
*group
)
1243 bfd
*abfd
= group
->owner
;
1244 Elf_Internal_Shdr
*ghdr
;
1246 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1250 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1253 ghdr
= &elf_section_data (group
)->this_hdr
;
1254 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1256 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1257 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1259 if (ghdr
->sh_info
> 0
1260 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1261 return isympp
[ghdr
->sh_info
- 1];
1266 /* Return TRUE if the section is a DWO section. */
1269 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1274 if (sec
== NULL
|| (name
= bfd_section_name (sec
)) == NULL
)
1277 len
= strlen (name
);
1281 return startswith (name
+ len
- 4, ".dwo");
1284 /* Return TRUE if section SEC is in the update list. */
1287 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1289 if (update_sections
!= NULL
)
1291 struct section_add
*pupdate
;
1293 for (pupdate
= update_sections
;
1295 pupdate
= pupdate
->next
)
1297 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1306 is_mergeable_note_section (bfd
* abfd
, asection
* sec
)
1309 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1310 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1311 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1312 We should add support for more note types. */
1313 && (startswith (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
)))
1319 /* See if a non-group section is being removed. */
1322 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1324 if (find_section_list (bfd_section_name (sec
), false, SECTION_CONTEXT_KEEP
)
1328 if (sections_removed
|| sections_copied
)
1330 struct section_list
*p
;
1331 struct section_list
*q
;
1333 p
= find_section_list (bfd_section_name (sec
), false,
1334 SECTION_CONTEXT_REMOVE
);
1335 q
= find_section_list (bfd_section_name (sec
), false,
1336 SECTION_CONTEXT_COPY
);
1339 fatal (_("error: section %s matches both remove and copy options"),
1340 bfd_section_name (sec
));
1341 if (p
&& is_update_section (abfd
, sec
))
1342 fatal (_("error: section %s matches both update and remove options"),
1343 bfd_section_name (sec
));
1347 if (sections_copied
&& q
== NULL
)
1351 if ((bfd_section_flags (sec
) & SEC_DEBUGGING
) != 0)
1353 if (strip_symbols
== STRIP_DEBUG
1354 || strip_symbols
== STRIP_UNNEEDED
1355 || strip_symbols
== STRIP_ALL
1356 || discard_locals
== LOCALS_ALL
1357 || convert_debugging
)
1359 /* By default we don't want to strip .reloc section.
1360 This section has for pe-coff special meaning. See
1361 pe-dll.c file in ld, and peXXigen.c in bfd for details.
1362 Similarly we do not want to strip debuglink sections. */
1363 const char * kept_sections
[] =
1371 for (i
= ARRAY_SIZE (kept_sections
);i
--;)
1372 if (strcmp (bfd_section_name (sec
), kept_sections
[i
]) == 0)
1378 if (strip_symbols
== STRIP_DWO
)
1379 return is_dwo_section (abfd
, sec
);
1381 if (strip_symbols
== STRIP_NONDEBUG
)
1385 if (strip_symbols
== STRIP_NONDWO
)
1386 return !is_dwo_section (abfd
, sec
);
1391 /* See if a section is being removed. */
1394 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1396 if (is_strip_section_1 (abfd
, sec
))
1399 if ((bfd_section_flags (sec
) & SEC_GROUP
) != 0)
1403 asection
*elt
, *first
;
1405 gsym
= group_signature (sec
);
1406 /* Strip groups without a valid signature. */
1411 If we are going to strip the group signature symbol, then
1412 strip the group section too. */
1414 if ((strip_symbols
== STRIP_ALL
1415 && !is_specified_symbol (gname
, keep_specific_htab
))
1416 || is_specified_symbol (gname
, strip_specific_htab
))
1419 /* Remove the group section if all members are removed. */
1420 first
= elt
= elf_next_in_group (sec
);
1423 if (!is_strip_section_1 (abfd
, elt
))
1425 elt
= elf_next_in_group (elt
);
1437 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1439 /* Always keep ELF note sections. */
1440 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
1441 return elf_section_type (isection
) == SHT_NOTE
;
1443 /* Always keep the .buildid section for PE/COFF.
1445 Strictly, this should be written "always keep the section storing the debug
1446 directory", but that may be the .text section for objects produced by some
1447 tools, which it is not sensible to keep. */
1448 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
)
1449 return strcmp (bfd_section_name (isection
), ".buildid") == 0;
1454 /* Return true if SYM is a hidden symbol. */
1457 is_hidden_symbol (asymbol
*sym
)
1459 elf_symbol_type
*elf_sym
;
1461 elf_sym
= elf_symbol_from (sym
);
1462 if (elf_sym
!= NULL
)
1463 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1472 /* Empty name is hopefully never a valid symbol name. */
1473 static const char * empty_name
= "";
1476 need_sym_before (struct addsym_node
**node
, const char *sym
)
1479 struct addsym_node
*ptr
= add_sym_list
;
1481 /* 'othersym' symbols are at the front of the list. */
1482 for (count
= 0; count
< add_symbols
; count
++)
1486 if (ptr
->othersym
== empty_name
)
1488 else if (strcmp (ptr
->othersym
, sym
) == 0)
1490 free ((char *) ptr
->othersym
);
1491 ptr
->othersym
= empty_name
;
1501 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1503 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1505 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1506 sym
->value
= ptr
->symval
;
1507 sym
->flags
= ptr
->flags
;
1510 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1512 fatal (_("Section %s not found"), ptr
->section
);
1516 sym
->section
= bfd_abs_section_ptr
;
1520 /* Choose which symbol entries to copy; put the result in OSYMS.
1521 We don't copy in place, because that confuses the relocs.
1522 Return the number of symbols to print. */
1525 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1526 asymbol
**isyms
, long symcount
)
1528 asymbol
**from
= isyms
, **to
= osyms
;
1529 long src_count
= 0, dst_count
= 0;
1530 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1532 for (; src_count
< symcount
; src_count
++)
1534 asymbol
*sym
= from
[src_count
];
1535 flagword flags
= sym
->flags
;
1536 char *name
= (char *) bfd_asymbol_name (sym
);
1538 bool used_in_reloc
= false;
1540 bool rem_leading_char
;
1541 bool add_leading_char
;
1543 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1547 struct addsym_node
*ptr
;
1549 if (need_sym_before (&ptr
, name
))
1550 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1553 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1560 && strcmp (name
+ (name
[2] == '_'), "__gnu_lto_slim") == 0)
1562 fatal (_("redefining symbols does not work on LTO-compiled object files"));
1565 new_name
= (char *) lookup_sym_redefinition (name
);
1566 if (new_name
== name
1567 && (flags
& BSF_SECTION_SYM
) != 0)
1568 new_name
= (char *) find_section_rename (name
, NULL
);
1569 bfd_set_asymbol_name (sym
, new_name
);
1573 /* Check if we will remove the current leading character. */
1576 && name
[0] == bfd_get_symbol_leading_char (abfd
)
1577 && (change_leading_char
1578 || (remove_leading_char
1579 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1581 || bfd_is_com_section (bfd_asymbol_section (sym
))))));
1583 /* Check if we will add a new leading character. */
1586 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1587 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1588 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1590 /* Short circuit for change_leading_char if we can do it in-place. */
1591 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1593 name
[0] = bfd_get_symbol_leading_char (obfd
);
1594 bfd_set_asymbol_name (sym
, name
);
1595 rem_leading_char
= false;
1596 add_leading_char
= false;
1599 /* Remove leading char. */
1600 if (rem_leading_char
)
1601 bfd_set_asymbol_name (sym
, ++name
);
1603 /* Add new leading char and/or prefix. */
1604 if (add_leading_char
|| prefix_symbols_string
)
1607 size_t len
= strlen (name
) + 1;
1609 if (add_leading_char
)
1611 if (prefix_symbols_string
)
1612 len
+= strlen (prefix_symbols_string
);
1614 ptr
= n
= (char *) xmalloc (len
);
1615 if (add_leading_char
)
1616 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1618 if (prefix_symbols_string
)
1620 strcpy (ptr
, prefix_symbols_string
);
1621 ptr
+= strlen (prefix_symbols_string
);
1625 bfd_set_asymbol_name (sym
, n
);
1629 if (strip_symbols
== STRIP_ALL
)
1631 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1632 || ((flags
& BSF_SECTION_SYM
) != 0
1633 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1637 used_in_reloc
= true;
1639 else if (relocatable
/* Relocatable file. */
1640 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1641 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1643 else if (bfd_decode_symclass (sym
) == 'I')
1644 /* Global symbols in $idata sections need to be retained
1645 even if relocatable is FALSE. External users of the
1646 library containing the $idata section may reference these
1649 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1650 || (flags
& BSF_WEAK
) != 0
1652 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1653 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1654 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1655 keep
= (strip_symbols
!= STRIP_DEBUG
1656 && strip_symbols
!= STRIP_UNNEEDED
1657 && ! convert_debugging
);
1658 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1659 /* COMDAT sections store special information in local
1660 symbols, so we cannot risk stripping any of them. */
1662 else /* Local symbol. */
1663 keep
= (strip_symbols
!= STRIP_UNNEEDED
1664 && (discard_locals
!= LOCALS_ALL
1665 && (discard_locals
!= LOCALS_START_L
1666 || ! bfd_is_local_label (abfd
, sym
))));
1668 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1670 /* There are multiple ways to set 'keep' above, but if it
1671 was the relocatable symbol case, then that's an error. */
1674 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1682 && !(flags
& BSF_KEEP
)
1683 && is_specified_symbol (name
, strip_unneeded_htab
))
1687 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1688 || is_specified_symbol (name
, keep_specific_htab
)))
1691 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1696 if (((flags
& (BSF_GLOBAL
| BSF_GNU_UNIQUE
))
1698 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1700 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_GNU_UNIQUE
);
1701 sym
->flags
|= BSF_WEAK
;
1705 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1706 && (is_specified_symbol (name
, localize_specific_htab
)
1707 || (htab_elements (keepglobal_specific_htab
) != 0
1708 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1709 || (localize_hidden
&& is_hidden_symbol (sym
))))
1711 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1712 sym
->flags
|= BSF_LOCAL
;
1716 && (flags
& BSF_LOCAL
)
1717 && is_specified_symbol (name
, globalize_specific_htab
))
1719 sym
->flags
&= ~ BSF_LOCAL
;
1720 sym
->flags
|= BSF_GLOBAL
;
1723 to
[dst_count
++] = sym
;
1728 struct addsym_node
*ptr
= add_sym_list
;
1730 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1734 if (ptr
->othersym
!= empty_name
)
1735 fatal (_("'before=%s' not found"), ptr
->othersym
);
1738 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1744 to
[dst_count
] = NULL
;
1749 /* Find the redefined name of symbol SOURCE. */
1752 lookup_sym_redefinition (const char *source
)
1754 struct redefine_node key_node
= {(char *) source
, NULL
};
1755 struct redefine_node
*redef_node
1756 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1758 return redef_node
== NULL
? source
: redef_node
->target
;
1761 /* Insert a node into symbol redefine hash tabel. */
1764 add_redefine_and_check (const char *cause
, const char *source
,
1767 struct redefine_node
*new_node
1768 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1770 new_node
->source
= strdup (source
);
1771 new_node
->target
= strdup (target
);
1773 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1774 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1777 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1778 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1781 /* Insert the NEW_NODE into hash table for quick search. */
1782 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1784 /* Insert the target string into the reverse hash table, this is needed for
1785 duplicated target string check. */
1786 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1790 /* Handle the --redefine-syms option. Read lines containing "old new"
1791 from the file, and add them to the symbol redefine list. */
1794 add_redefine_syms_file (const char *filename
)
1803 file
= fopen (filename
, "r");
1805 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1806 filename
, strerror (errno
));
1809 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1817 /* Collect the input symbol name. */
1818 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1826 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1834 /* Eat white space between the symbol names. */
1835 while (IS_WHITESPACE (c
))
1837 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1842 /* Collect the output symbol name. */
1844 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1852 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1860 /* Eat white space at end of line. */
1861 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1866 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1867 || c
== '\n' || c
== EOF
)
1870 /* Append the redefinition to the list. */
1872 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1883 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1885 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1886 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1889 /* Eat the rest of the line and finish it. */
1890 while (c
!= '\n' && c
!= EOF
)
1896 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1902 /* Copy unknown object file IBFD onto OBFD.
1903 Returns TRUE upon success, FALSE otherwise. */
1906 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1909 bfd_size_type tocopy
;
1913 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1915 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1922 non_fatal (_("stat returns negative size for `%s'"),
1923 bfd_get_archive_filename (ibfd
));
1927 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1929 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1934 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1935 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1937 cbuf
= (char *) xmalloc (BUFSIZE
);
1945 if (bfd_bread (cbuf
, tocopy
, ibfd
) != tocopy
)
1947 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1952 if (bfd_bwrite (cbuf
, tocopy
, obfd
) != tocopy
)
1954 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1962 /* We should at least to be able to read it back when copying an
1963 unknown object in an archive. */
1964 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1969 typedef struct objcopy_internal_note
1971 Elf_Internal_Note note
;
1972 unsigned long padded_namesz
;
1975 } objcopy_internal_note
;
1977 #define DEBUG_MERGE 0
1980 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1982 #define merge_debug(format, ...)
1985 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
1988 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
1989 objcopy_internal_note
* pnote2
)
1991 if (pnote1
->end
< pnote2
->start
)
1992 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1993 Really we should extract the alignment of the section
1994 covered by the notes. */
1995 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1997 if (pnote2
->end
< pnote2
->start
)
1998 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
2000 if (pnote1
->end
< pnote2
->end
)
2003 if (pnote2
->end
< pnote1
->end
)
2009 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
2012 contained_by (objcopy_internal_note
* needle
,
2013 objcopy_internal_note
* haystack
)
2015 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
2019 is_open_note (objcopy_internal_note
* pnote
)
2021 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2025 is_func_note (objcopy_internal_note
* pnote
)
2027 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2031 is_deleted_note (objcopy_internal_note
* pnote
)
2033 return pnote
->note
.type
== 0;
2037 is_version_note (objcopy_internal_note
* pnote
)
2039 return (pnote
->note
.namesz
> 4
2040 && pnote
->note
.namedata
[0] == 'G'
2041 && pnote
->note
.namedata
[1] == 'A'
2042 && pnote
->note
.namedata
[2] == '$'
2043 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2047 is_64bit (bfd
* abfd
)
2049 /* Should never happen, but let's be paranoid. */
2050 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2053 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2056 /* This sorting function is used to get the notes into an order
2057 that makes merging easy. */
2060 compare_gnu_build_notes (const void * data1
, const void * data2
)
2062 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2063 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2065 /* Sort notes based upon the attribute they record. */
2066 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2067 pnote2
->note
.namedata
+ 3,
2068 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2069 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2073 if (pnote1
->end
< pnote2
->start
)
2075 if (pnote1
->start
> pnote2
->end
)
2078 /* Overlaps - we should merge the two ranges. */
2079 if (pnote1
->start
< pnote2
->start
)
2081 if (pnote1
->end
> pnote2
->end
)
2083 if (pnote1
->end
< pnote2
->end
)
2086 /* Put OPEN notes before function notes. */
2087 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2089 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2095 /* This sorting function is used to get the notes into an order
2096 that makes eliminating address ranges easier. */
2099 sort_gnu_build_notes (const void * data1
, const void * data2
)
2101 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2102 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2104 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2106 /* Move deleted notes to the end. */
2107 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2110 /* Move OPEN notes to the start. */
2111 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2114 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2117 return 1; /* 1: F 2: O */
2120 /* Sort by starting address. */
2121 if (pnote1
->start
< pnote2
->start
)
2123 if (pnote1
->start
> pnote2
->start
)
2126 /* Then by end address (bigger range first). */
2127 if (pnote1
->end
> pnote2
->end
)
2129 if (pnote1
->end
< pnote2
->end
)
2132 /* Then by attribute type. */
2133 if (pnote1
->note
.namesz
> 4
2134 && pnote2
->note
.namesz
> 4
2135 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2136 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2141 /* Merge the notes on SEC, removing redundant entries.
2142 Returns the new, smaller size of the section upon success. */
2144 static bfd_size_type
2145 merge_gnu_build_notes (bfd
* abfd
,
2148 bfd_byte
* contents
)
2150 objcopy_internal_note
* pnotes_end
;
2151 objcopy_internal_note
* pnotes
= NULL
;
2152 objcopy_internal_note
* pnote
;
2153 bfd_size_type remain
= size
;
2154 unsigned version_1_seen
= 0;
2155 unsigned version_2_seen
= 0;
2156 unsigned version_3_seen
= 0;
2157 const char * err
= NULL
;
2158 bfd_byte
* in
= contents
;
2159 unsigned long previous_func_start
= 0;
2160 unsigned long previous_open_start
= 0;
2161 unsigned long previous_func_end
= 0;
2162 unsigned long previous_open_end
= 0;
2165 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2171 /* If there are relocs associated with this section then we
2172 cannot safely merge it. */
2173 relpp
= (arelent
**) xmalloc (relsize
);
2174 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2179 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2180 bfd_get_filename (abfd
), bfd_section_name (sec
));
2185 /* Make a copy of the notes and convert to our internal format.
2186 Minimum size of a note is 12 bytes. Also locate the version
2187 notes and check them. */
2188 pnote
= pnotes
= (objcopy_internal_note
*)
2189 xcalloc ((size
/ 12), sizeof (* pnote
));
2190 while (remain
>= 12)
2194 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2195 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2196 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2197 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2199 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2201 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2205 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2206 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2208 err
= _("corrupt GNU build attribute note: wrong note type");
2212 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2214 err
= _("corrupt GNU build attribute note: note too big");
2218 if (pnote
->note
.namesz
< 2)
2220 err
= _("corrupt GNU build attribute note: name too small");
2224 pnote
->note
.namedata
= (char *)(in
+ 12);
2225 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2227 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2228 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2230 if (pnote
->note
.namesz
> 2
2231 && pnote
->note
.namedata
[0] == '$'
2232 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2233 && pnote
->note
.namedata
[2] == '1')
2235 else if (is_version_note (pnote
))
2237 if (pnote
->note
.namedata
[4] == '2')
2239 else if (pnote
->note
.namedata
[4] == '3')
2243 err
= _("corrupt GNU build attribute note: unsupported version");
2248 switch (pnote
->note
.descsz
)
2255 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2256 /* FIXME: For version 1 and 2 notes we should try to
2257 calculate the end address by finding a symbol whose
2258 value is START, and then adding in its size.
2260 For now though, since v1 and v2 was not intended to
2261 handle gaps, we chose an artificially large end
2267 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2268 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2272 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2273 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2277 err
= _("corrupt GNU build attribute note: bad description size");
2282 /* This can happen with PPC64LE binaries where empty notes are
2283 encoded as start = end + 4. */
2286 if (is_open_note (pnote
))
2289 previous_open_start
= start
;
2291 pnote
->start
= previous_open_start
;
2294 previous_open_end
= end
;
2296 pnote
->end
= previous_open_end
;
2301 previous_func_start
= start
;
2303 pnote
->start
= previous_func_start
;
2306 previous_func_end
= end
;
2308 pnote
->end
= previous_func_end
;
2311 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2313 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2322 /* Check that the notes are valid. */
2325 err
= _("corrupt GNU build attribute notes: excess data at end");
2329 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2332 err
= _("bad GNU build attribute notes: no known versions detected");
2335 /* This happens with glibc. No idea why. */
2336 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2337 bfd_get_filename (abfd
), bfd_section_name (sec
));
2342 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2343 || (version_1_seen
> 0 && version_3_seen
> 0)
2344 || (version_2_seen
> 0 && version_3_seen
> 0))
2346 err
= _("bad GNU build attribute notes: multiple different versions");
2350 /* We are now only supporting the merging v3+ notes
2351 - it makes things much simpler. */
2352 if (version_3_seen
== 0)
2354 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2358 merge_debug ("Merging section %s which contains %ld notes\n",
2359 sec
->name
, pnotes_end
- pnotes
);
2361 /* Sort the notes. */
2362 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2363 compare_gnu_build_notes
);
2366 merge_debug ("Results of initial sort:\n");
2367 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2368 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2369 (pnote
->note
.namedata
- (char *) contents
) - 12,
2370 pnote
->start
, pnote
->end
,
2372 pnote
->note
.namedata
[3],
2377 /* Now merge the notes. The rules are:
2378 1. If a note has a zero range, it can be eliminated.
2379 2. If two notes have the same namedata then:
2380 2a. If one note's range is fully covered by the other note
2381 then it can be deleted.
2382 2b. If one note's range partially overlaps or adjoins the
2383 other note then if they are both of the same type (open
2384 or func) then they can be merged and one deleted. If
2385 they are of different types then they cannot be merged. */
2386 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2388 /* Skip already deleted notes.
2389 FIXME: Can this happen ? We are scanning forwards and
2390 deleting backwards after all. */
2391 if (is_deleted_note (pnote
))
2394 /* Rule 1 - delete 0-range notes. */
2395 if (pnote
->start
== pnote
->end
)
2397 merge_debug ("Delete note at offset %#08lx - empty range\n",
2398 (pnote
->note
.namedata
- (char *) contents
) - 12);
2399 pnote
->note
.type
= 0;
2404 objcopy_internal_note
* back
;
2406 /* Rule 2: Check to see if there is an identical previous note. */
2407 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2409 if (is_deleted_note (back
))
2412 /* Our sorting function should have placed all identically
2413 attributed notes together, so if we see a note of a different
2414 attribute type stop searching. */
2415 if (back
->note
.namesz
!= pnote
->note
.namesz
2416 || memcmp (back
->note
.namedata
,
2417 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2420 if (back
->start
== pnote
->start
2421 && back
->end
== pnote
->end
)
2423 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2424 (pnote
->note
.namedata
- (char *) contents
) - 12,
2425 (back
->note
.namedata
- (char *) contents
) - 12);
2426 pnote
->note
.type
= 0;
2431 if (contained_by (pnote
, back
))
2433 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2434 (pnote
->note
.namedata
- (char *) contents
) - 12,
2435 (back
->note
.namedata
- (char *) contents
) - 12);
2436 pnote
->note
.type
= 0;
2441 /* This should not happen as we have sorted the
2442 notes with earlier starting addresses first. */
2443 if (contained_by (back
, pnote
))
2444 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2448 if (overlaps_or_adjoins (back
, pnote
)
2449 && is_func_note (back
) == is_func_note (pnote
))
2451 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2452 (pnote
->note
.namedata
- (char *) contents
) - 12,
2453 (back
->note
.namedata
- (char *) contents
) - 12);
2455 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2456 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2457 pnote
->note
.type
= 0;
2461 /* Don't scan too far back however. */
2464 /* FIXME: Not sure if this can ever be triggered. */
2465 merge_debug ("ITERATION LIMIT REACHED\n");
2470 if (! is_deleted_note (pnote
))
2471 merge_debug ("Unable to do anything with note at %#08lx\n",
2472 (pnote
->note
.namedata
- (char *) contents
) - 12);
2476 /* Resort the notes. */
2477 merge_debug ("Final sorting of notes\n");
2478 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2480 /* Reconstruct the ELF notes. */
2481 bfd_byte
* new_contents
;
2484 bfd_size_type new_size
;
2485 bfd_vma prev_start
= 0;
2486 bfd_vma prev_end
= 0;
2488 /* Not sure how, but the notes might grow in size.
2489 (eg see PR 1774507). Allow for this here. */
2490 new = new_contents
= xmalloc (size
* 2);
2491 for (pnote
= pnotes
, old
= contents
;
2495 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2497 if (! is_deleted_note (pnote
))
2499 /* Create the note, potentially using the
2500 address range of the previous note. */
2501 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2503 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2504 bfd_put_32 (abfd
, 0, new + 4);
2505 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2507 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2508 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2509 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2510 new += pnote
->padded_namesz
;
2514 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2515 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2516 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2518 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2519 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2520 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2521 new += pnote
->padded_namesz
;
2522 if (is_64bit (abfd
))
2524 bfd_put_64 (abfd
, pnote
->start
, new);
2525 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2530 bfd_put_32 (abfd
, pnote
->start
, new);
2531 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2535 prev_start
= pnote
->start
;
2536 prev_end
= pnote
->end
;
2544 merge_debug ("Results of merge:\n");
2545 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2546 if (! is_deleted_note (pnote
))
2547 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2548 (pnote
->note
.namedata
- (char *) contents
) - 12,
2549 pnote
->start
, pnote
->end
,
2551 pnote
->note
.namedata
[3],
2556 new_size
= new - new_contents
;
2557 if (new_size
< size
)
2559 memcpy (contents
, new_contents
, new_size
);
2562 free (new_contents
);
2567 bfd_set_error (bfd_error_bad_value
);
2568 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2577 check_new_section_flags (flagword flags
, bfd
* abfd
, const char * secname
)
2579 /* Only set the SEC_COFF_SHARED flag on COFF files.
2580 The same bit value is used by ELF targets to indicate
2581 compressed sections, and setting that flag here breaks
2583 if ((flags
& SEC_COFF_SHARED
)
2584 && bfd_get_flavour (abfd
) != bfd_target_coff_flavour
)
2586 non_fatal (_("%s[%s]: Note - dropping 'share' flag as output format is not COFF"),
2587 bfd_get_filename (abfd
), secname
);
2588 flags
&= ~ SEC_COFF_SHARED
;
2593 /* Copy object file IBFD onto OBFD.
2594 Returns TRUE upon success, FALSE otherwise. */
2597 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2601 asection
**osections
= NULL
;
2603 asection
*gnu_debuglink_section
= NULL
;
2604 bfd_size_type
*gaps
= NULL
;
2605 bfd_size_type max_gap
= 0;
2608 enum bfd_architecture iarch
;
2610 unsigned int num_sec
, i
;
2612 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2613 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2614 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2616 /* PR 17636: Call non-fatal so that we return to our parent who
2617 may need to tidy temporary files. */
2618 non_fatal (_("unable to change endianness of '%s'"),
2619 bfd_get_archive_filename (ibfd
));
2623 if (ibfd
->read_only
)
2625 non_fatal (_("unable to modify '%s' due to errors"),
2626 bfd_get_archive_filename (ibfd
));
2630 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2632 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2636 if (ibfd
->sections
== NULL
)
2638 non_fatal (_("error: the input file '%s' has no sections"),
2639 bfd_get_archive_filename (ibfd
));
2643 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2645 if ((do_debug_sections
& compress
) != 0
2646 && do_debug_sections
!= compress
)
2648 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2649 bfd_get_archive_filename (ibfd
));
2653 if (do_elf_stt_common
)
2655 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2656 bfd_get_archive_filename (ibfd
));
2662 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2663 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2664 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2673 start
= bfd_get_start_address (ibfd
);
2674 start
+= change_start
;
2677 /* Neither the start address nor the flags
2678 need to be set for a core file. */
2679 if (bfd_get_format (obfd
) != bfd_core
)
2683 flags
= bfd_get_file_flags (ibfd
);
2684 flags
|= bfd_flags_to_set
;
2685 flags
&= ~bfd_flags_to_clear
;
2686 flags
&= bfd_applicable_file_flags (obfd
);
2688 if (strip_symbols
== STRIP_ALL
)
2689 flags
&= ~HAS_RELOC
;
2691 if (!bfd_set_start_address (obfd
, start
)
2692 || !bfd_set_file_flags (obfd
, flags
))
2694 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2699 /* Copy architecture of input file to output file. */
2700 iarch
= bfd_get_arch (ibfd
);
2701 imach
= bfd_get_mach (ibfd
);
2704 if (iarch
== bfd_arch_unknown
)
2706 iarch
= input_arch
->arch
;
2707 imach
= input_arch
->mach
;
2710 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2711 bfd_get_archive_filename (ibfd
));
2713 if (iarch
== bfd_arch_unknown
2714 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2715 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2717 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2721 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2722 && (ibfd
->target_defaulted
2723 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2725 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2726 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2727 bfd_get_archive_filename (ibfd
));
2729 non_fatal (_("Output file cannot represent architecture `%s'"),
2730 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2731 bfd_get_mach (ibfd
)));
2735 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2737 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2741 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2742 && bfd_pei_p (obfd
))
2744 /* Set up PE parameters. */
2745 pe_data_type
*pe
= pe_data (obfd
);
2747 /* Copy PE parameters before changing them. */
2748 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2749 && bfd_pei_p (ibfd
))
2750 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2752 if (pe_file_alignment
!= (bfd_vma
) -1)
2753 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2755 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2757 if (pe_heap_commit
!= (bfd_vma
) -1)
2758 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2760 if (pe_heap_reserve
!= (bfd_vma
) -1)
2761 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2763 if (pe_image_base
!= (bfd_vma
) -1)
2764 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2766 if (pe_section_alignment
!= (bfd_vma
) -1)
2767 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2769 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2771 if (pe_stack_commit
!= (bfd_vma
) -1)
2772 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2774 if (pe_stack_reserve
!= (bfd_vma
) -1)
2775 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2777 if (pe_subsystem
!= -1)
2778 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2780 if (pe_major_subsystem_version
!= -1)
2781 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2783 if (pe_minor_subsystem_version
!= -1)
2784 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2786 if (pe_file_alignment
> pe_section_alignment
)
2788 char file_alignment
[20], section_alignment
[20];
2790 sprintf_vma (file_alignment
, pe_file_alignment
);
2791 sprintf_vma (section_alignment
, pe_section_alignment
);
2792 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2794 file_alignment
, section_alignment
);
2798 && bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2799 && bfd_pei_p (ibfd
))
2800 pe
->timestamp
= pe_data (ibfd
)->coff
.timestamp
;
2805 if (osympp
!= isympp
)
2811 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2814 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2818 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2819 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2822 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2825 /* PR 17512: file: d6323821
2826 If the symbol table could not be loaded do not pretend that we have
2827 any symbols. This trips us up later on when we load the relocs. */
2831 osympp
= isympp
= NULL
;
2834 /* BFD mandates that all output sections be created and sizes set before
2835 any output is done. Thus, we traverse all sections multiple times. */
2836 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2838 if (!extract_symbol
)
2839 setup_bfd_headers (ibfd
, obfd
);
2841 if (add_sections
!= NULL
)
2843 struct section_add
*padd
;
2844 struct section_list
*pset
;
2846 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2850 pset
= find_section_list (padd
->name
, false,
2851 SECTION_CONTEXT_SET_FLAGS
);
2854 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2855 flags
= check_new_section_flags (flags
, obfd
, padd
->name
);
2858 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2860 /* bfd_make_section_with_flags() does not return very helpful
2861 error codes, so check for the most likely user error first. */
2862 if (bfd_get_section_by_name (obfd
, padd
->name
))
2864 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2865 _("can't add section '%s'"), padd
->name
);
2870 /* We use LINKER_CREATED here so that the backend hooks
2871 will create any special section type information,
2872 instead of presuming we know what we're doing merely
2873 because we set the flags. */
2874 padd
->section
= bfd_make_section_with_flags
2875 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2876 if (padd
->section
== NULL
)
2878 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2879 _("can't create section `%s'"),
2885 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2887 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2891 pset
= find_section_list (padd
->name
, false,
2892 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2894 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2896 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2900 pset
= find_section_list (padd
->name
, false,
2901 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2904 padd
->section
->lma
= pset
->lma_val
;
2906 if (!bfd_set_section_alignment
2907 (padd
->section
, bfd_section_alignment (padd
->section
)))
2909 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2916 if (update_sections
!= NULL
)
2918 struct section_add
*pupdate
;
2920 for (pupdate
= update_sections
;
2922 pupdate
= pupdate
->next
)
2924 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2925 if (pupdate
->section
== NULL
)
2927 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2931 osec
= pupdate
->section
->output_section
;
2932 if (!bfd_set_section_size (osec
, pupdate
->size
))
2934 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2940 merged_note_section
* merged_note_sections
= NULL
;
2943 /* This palaver is necessary because we must set the output
2944 section size first, before its contents are ready. */
2945 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2947 if (! is_mergeable_note_section (ibfd
, osec
))
2950 /* If the section is going to be completly deleted then
2951 do not bother to merge it. */
2952 if (osec
->output_section
== NULL
)
2955 bfd_size_type size
= bfd_section_size (osec
);
2959 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2960 _("warning: note section is empty"));
2964 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2965 merged
->contents
= NULL
;
2966 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2968 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2969 _("warning: could not load note section"));
2974 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2977 /* FIXME: Once we have read the contents in, we must write
2978 them out again. So even if the mergeing has achieved
2979 nothing we still add this entry to the merge list. */
2981 if (size
!= merged
->size
2982 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2984 bfd_nonfatal_message (NULL
, obfd
, osec
,
2985 _("warning: failed to set merged notes size"));
2986 free (merged
->contents
);
2991 /* Add section to list of merged sections. */
2993 merged
->next
= merged_note_sections
;
2994 merged_note_sections
= merged
;
2998 if (dump_sections
!= NULL
)
3000 struct section_add
* pdump
;
3002 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
3007 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
3010 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3011 _("can't dump section '%s' - it does not exist"),
3016 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
3018 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3019 _("can't dump section - it has no contents"));
3023 bfd_size_type size
= bfd_section_size (osec
);
3024 /* Note - we allow the dumping of zero-sized sections,
3025 creating an empty file. */
3027 f
= fopen (pdump
->filename
, FOPEN_WB
);
3030 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3031 _("could not open section dump file"));
3035 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3037 if (size
!= 0 && fwrite (contents
, 1, size
, f
) != size
)
3039 non_fatal (_("error writing section contents to %s (error: %s)"),
3048 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3049 _("could not retrieve section contents"));
3056 if (gnu_debuglink_filename
!= NULL
)
3058 /* PR 15125: Give a helpful warning message if
3059 the debuglink section already exists, and
3060 allow the rest of the copy to complete. */
3061 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3063 non_fatal (_("%s: debuglink section already exists"),
3064 bfd_get_filename (obfd
));
3065 gnu_debuglink_filename
= NULL
;
3069 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3070 (obfd
, gnu_debuglink_filename
);
3072 if (gnu_debuglink_section
== NULL
)
3074 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3075 _("cannot create debug link section `%s'"),
3076 gnu_debuglink_filename
);
3080 /* Special processing for PE format files. We
3081 have no way to distinguish PE from COFF here. */
3082 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3084 bfd_vma debuglink_vma
;
3085 asection
* highest_section
;
3087 /* The PE spec requires that all sections be adjacent and sorted
3088 in ascending order of VMA. It also specifies that debug
3089 sections should be last. This is despite the fact that debug
3090 sections are not loaded into memory and so in theory have no
3093 This means that the debuglink section must be given a non-zero
3094 VMA which makes it contiguous with other debug sections. So
3095 walk the current section list, find the section with the
3096 highest VMA and start the debuglink section after that one. */
3097 for (osec
= obfd
->sections
, highest_section
= NULL
;
3101 && (highest_section
== NULL
3102 || osec
->vma
> highest_section
->vma
))
3103 highest_section
= osec
;
3105 if (highest_section
)
3106 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3107 + highest_section
->size
,
3108 /* FIXME: We ought to be using
3109 COFF_PAGE_SIZE here or maybe
3110 bfd_section_alignment() (if it
3111 was set) but since this is for PE
3112 and we know the required alignment
3113 it is easier just to hard code it. */
3116 /* Umm, not sure what to do in this case. */
3117 debuglink_vma
= 0x1000;
3119 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3124 num_sec
= bfd_count_sections (obfd
);
3126 && (gap_fill_set
|| pad_to_set
))
3130 /* We must fill in gaps between the sections and/or we must pad
3131 the last section to a specified address. We do this by
3132 grabbing a list of the sections, sorting them by VMA, and
3133 increasing the section sizes as required to fill the gaps.
3134 We write out the gap contents below. */
3136 osections
= xmalloc (num_sec
* sizeof (*osections
));
3138 bfd_map_over_sections (obfd
, get_sections
, &set
);
3140 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3142 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3143 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3147 for (i
= 0; i
< num_sec
- 1; i
++)
3150 bfd_size_type size
; /* Octets. */
3151 bfd_vma gap_start
, gap_stop
; /* Octets. */
3152 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3153 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3155 flags
= bfd_section_flags (osections
[i
]);
3156 if ((flags
& SEC_HAS_CONTENTS
) == 0
3157 || (flags
& SEC_LOAD
) == 0)
3160 size
= bfd_section_size (osections
[i
]);
3161 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3162 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3163 if (gap_start
< gap_stop
)
3165 if (!bfd_set_section_size (osections
[i
],
3166 size
+ (gap_stop
- gap_start
)))
3168 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3169 _("Can't fill gap after section"));
3173 gaps
[i
] = gap_stop
- gap_start
;
3174 if (max_gap
< gap_stop
- gap_start
)
3175 max_gap
= gap_stop
- gap_start
;
3182 bfd_vma lma
; /* Octets. */
3183 bfd_size_type size
; /* Octets. */
3184 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3185 bfd_vma _pad_to
= pad_to
* opb
;
3187 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3188 size
= bfd_section_size (osections
[num_sec
- 1]);
3189 if (lma
+ size
< _pad_to
)
3191 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3193 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3194 _("can't add padding"));
3199 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3200 if (max_gap
< _pad_to
- (lma
+ size
))
3201 max_gap
= _pad_to
- (lma
+ size
);
3207 /* Symbol filtering must happen after the output sections
3208 have been created, but before their contents are set. */
3210 if (convert_debugging
)
3211 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, false);
3213 if ((obfd
->flags
& (EXEC_P
| DYNAMIC
)) != 0
3214 && (obfd
->flags
& HAS_RELOC
) == 0)
3216 if (bfd_keep_unused_section_symbols (obfd
) || keep_section_symbols
)
3218 /* Non-relocatable inputs may not have the unused section
3219 symbols. Mark all section symbols as used to generate
3222 for (asect
= obfd
->sections
; asect
!= NULL
; asect
= asect
->next
)
3224 asect
->symbol
->flags
|= BSF_SECTION_SYM_USED
;
3228 /* Non-relocatable inputs may have the unused section symbols.
3229 Mark all section symbols as unused to excluded them. */
3231 for (s
= 0; s
< symcount
; s
++)
3232 if ((isympp
[s
]->flags
& BSF_SECTION_SYM_USED
))
3233 isympp
[s
]->flags
&= ~BSF_SECTION_SYM_USED
;
3237 if (strip_symbols
== STRIP_DEBUG
3238 || strip_symbols
== STRIP_ALL
3239 || strip_symbols
== STRIP_UNNEEDED
3240 || strip_symbols
== STRIP_NONDEBUG
3241 || strip_symbols
== STRIP_DWO
3242 || strip_symbols
== STRIP_NONDWO
3243 || discard_locals
!= LOCALS_UNDEF
3245 || htab_elements (strip_specific_htab
) != 0
3246 || htab_elements (keep_specific_htab
) != 0
3247 || htab_elements (localize_specific_htab
) != 0
3248 || htab_elements (globalize_specific_htab
) != 0
3249 || htab_elements (keepglobal_specific_htab
) != 0
3250 || htab_elements (weaken_specific_htab
) != 0
3251 || htab_elements (redefine_specific_htab
) != 0
3252 || prefix_symbols_string
3255 || convert_debugging
3256 || change_leading_char
3257 || remove_leading_char
3258 || section_rename_list
3262 /* Mark symbols used in output relocations so that they
3263 are kept, even if they are local labels or static symbols.
3265 Note we iterate over the input sections examining their
3266 relocations since the relocations for the output sections
3267 haven't been set yet. mark_symbols_used_in_relocations will
3268 ignore input sections which have no corresponding output
3270 if (strip_symbols
!= STRIP_ALL
)
3272 bfd_set_error (bfd_error_no_error
);
3273 bfd_map_over_sections (ibfd
,
3274 mark_symbols_used_in_relocations
,
3276 if (bfd_get_error () != bfd_error_no_error
)
3283 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3284 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3287 if (convert_debugging
&& dhandle
!= NULL
)
3291 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3294 dhandle
= NULL
; /* Paranoia... */
3303 bfd_set_symtab (obfd
, osympp
, symcount
);
3305 /* This has to happen before section positions are set. */
3306 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3308 /* This has to happen after the symbol table has been set. */
3309 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3311 if (add_sections
!= NULL
)
3313 struct section_add
*padd
;
3315 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3317 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3320 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3326 if (update_sections
!= NULL
)
3328 struct section_add
*pupdate
;
3330 for (pupdate
= update_sections
;
3332 pupdate
= pupdate
->next
)
3334 osec
= pupdate
->section
->output_section
;
3335 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3338 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3344 if (merged_note_sections
!= NULL
)
3346 merged_note_section
* merged
= NULL
;
3348 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3350 if (! is_mergeable_note_section (obfd
, osec
))
3354 merged
= merged_note_sections
;
3356 /* It is likely that output sections are in the same order
3357 as the input sections, but do not assume that this is
3359 if (merged
->sec
->output_section
!= osec
)
3361 for (merged
= merged_note_sections
;
3363 merged
= merged
->next
)
3364 if (merged
->sec
->output_section
== osec
)
3369 bfd_nonfatal_message
3371 _("error: failed to locate merged notes"));
3376 if (merged
->contents
== NULL
)
3378 bfd_nonfatal_message
3380 _("error: failed to merge notes"));
3384 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3387 bfd_nonfatal_message
3389 _("error: failed to copy merged notes into output"));
3393 merged
= merged
->next
;
3396 /* Free the memory. */
3397 merged_note_section
* next
;
3398 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3400 next
= merged
->next
;
3401 free (merged
->contents
);
3405 else if (merge_notes
&& ! is_strip
)
3406 non_fatal (_("%s: Could not find any mergeable note sections"),
3407 bfd_get_filename (ibfd
));
3409 if (gnu_debuglink_filename
!= NULL
)
3411 if (! bfd_fill_in_gnu_debuglink_section
3412 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3414 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3415 _("cannot fill debug link section `%s'"),
3416 gnu_debuglink_filename
);
3425 /* Fill in the gaps. */
3428 buf
= (bfd_byte
*) xmalloc (max_gap
);
3429 memset (buf
, gap_fill
, max_gap
);
3431 for (i
= 0; i
< num_sec
; i
++)
3439 off
= bfd_section_size (osections
[i
]) - left
;
3450 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3453 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3469 /* Allow the BFD backend to copy any private data it understands
3470 from the input BFD to the output BFD. This is done last to
3471 permit the routine to look at the filtered symbol table, which is
3472 important for the ECOFF code at least. */
3473 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3475 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3476 _("error copying private BFD data"));
3480 /* Switch to the alternate machine code. We have to do this at the
3481 very end, because we only initialize the header when we create
3482 the first section. */
3483 if (use_alt_mach_code
!= 0)
3485 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3487 non_fatal (_("this target does not support %lu alternative machine codes"),
3489 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3491 non_fatal (_("treating that number as an absolute e_machine value instead"));
3492 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3495 non_fatal (_("ignoring the alternative value"));
3502 /* Read each archive element in turn from IBFD, copy the
3503 contents to temp file, and keep the temp file handle.
3504 If 'force_output_target' is TRUE then make sure that
3505 all elements in the new archive are of the type
3509 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3510 bool force_output_target
,
3511 const bfd_arch_info_type
*input_arch
)
3515 struct name_list
*next
;
3519 bfd
**ptr
= &obfd
->archive_head
;
3522 const char *filename
;
3524 /* PR 24281: It is not clear what should happen when copying a thin archive.
3525 One part is straight forward - if the output archive is in a different
3526 directory from the input archive then any relative paths in the library
3527 should be adjusted to the new location. But if any transformation
3528 options are active (eg strip, rename, add, etc) then the implication is
3529 that these should be applied to the files pointed to by the archive.
3530 But since objcopy is not destructive, this means that new files must be
3531 created, and there is no guidance for the names of the new files. (Plus
3532 this conflicts with one of the goals of thin libraries - only taking up
3533 a minimal amount of space in the file system).
3535 So for now we fail if an attempt is made to copy such libraries. */
3536 if (ibfd
->is_thin_archive
)
3539 bfd_set_error (bfd_error_invalid_operation
);
3540 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3541 _("sorry: copying thin archives is not currently supported"));
3545 /* Make a temp directory to hold the contents. */
3546 dir
= make_tempdir (bfd_get_filename (obfd
));
3548 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3551 if (strip_symbols
== STRIP_ALL
)
3552 obfd
->has_armap
= false;
3554 obfd
->has_armap
= ibfd
->has_armap
;
3555 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3558 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3562 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3564 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3567 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3568 goto cleanup_and_exit
;
3571 while (!status
&& this_element
!= NULL
)
3577 int stat_status
= 0;
3581 /* PR binutils/17533: Do not allow directory traversal
3582 outside of the current directory tree by archive members. */
3583 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3585 non_fatal (_("illegal pathname found in archive member: %s"),
3586 bfd_get_filename (this_element
));
3588 goto cleanup_and_exit
;
3591 /* Create an output file for this member. */
3592 output_name
= concat (dir
, "/",
3593 bfd_get_filename (this_element
), (char *) 0);
3595 /* If the file already exists, make another temp dir. */
3596 if (stat (output_name
, &buf
) >= 0)
3598 char * tmpdir
= make_tempdir (output_name
);
3603 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3606 goto cleanup_and_exit
;
3609 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3614 output_name
= concat (tmpdir
, "/",
3615 bfd_get_filename (this_element
), (char *) 0);
3620 memset (&buf
, 0, sizeof (buf
));
3621 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3623 if (stat_status
!= 0)
3624 non_fatal (_("internal stat error on %s"),
3625 bfd_get_filename (this_element
));
3628 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3629 l
->name
= output_name
;
3634 ok_object
= bfd_check_format (this_element
, bfd_object
);
3636 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3637 _("Unable to recognise the format of file"));
3639 /* PR binutils/3110: Cope with archives
3640 containing multiple target types. */
3641 if (force_output_target
|| !ok_object
)
3642 output_bfd
= bfd_openw (output_name
, output_target
);
3644 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3646 if (output_bfd
== NULL
)
3648 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3650 goto cleanup_and_exit
;
3655 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3657 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3658 /* Try again as an unknown object file. */
3660 else if (!bfd_close (output_bfd
))
3662 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3663 /* Error in new object file. Don't change archive. */
3670 del
= !copy_unknown_object (this_element
, output_bfd
);
3671 if (!bfd_close_all_done (output_bfd
))
3673 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3674 /* Error in new object file. Don't change archive. */
3681 unlink (output_name
);
3686 if (preserve_dates
&& stat_status
== 0)
3687 set_times (output_name
, &buf
);
3689 /* Open the newly output file and attach to our list. */
3690 output_bfd
= bfd_openr (output_name
, output_target
);
3692 l
->obfd
= output_bfd
;
3695 ptr
= &output_bfd
->archive_next
;
3697 last_element
= this_element
;
3699 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3701 bfd_close (last_element
);
3706 filename
= bfd_get_filename (obfd
);
3707 if (!bfd_close (obfd
))
3710 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3713 filename
= bfd_get_filename (ibfd
);
3714 if (!bfd_close (ibfd
))
3717 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3721 /* Delete all the files that we opened. */
3723 struct name_list
* next
;
3725 for (l
= list
; l
!= NULL
; l
= next
)
3727 if (l
->obfd
== NULL
)
3731 bfd_close (l
->obfd
);
3743 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3745 /* This is only relevant to Coff targets. */
3746 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3749 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3750 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3751 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3755 /* The top-level control. */
3758 copy_file (const char *input_filename
, const char *output_filename
, int ofd
,
3759 struct stat
*in_stat
, const char *input_target
,
3760 const char *output_target
, const bfd_arch_info_type
*input_arch
)
3763 char **obj_matching
;
3764 char **core_matching
;
3765 off_t size
= get_file_size (input_filename
);
3770 non_fatal (_("error: the input file '%s' is empty"),
3776 /* To allow us to do "strip *" without dying on the first
3777 non-object file, failures are nonfatal. */
3778 ibfd
= bfd_openr (input_filename
, input_target
);
3779 if (ibfd
== NULL
|| bfd_stat (ibfd
, in_stat
) != 0)
3781 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3786 switch (do_debug_sections
)
3790 case compress_gnu_zlib
:
3791 case compress_gabi_zlib
:
3792 ibfd
->flags
|= BFD_COMPRESS
;
3793 /* Don't check if input is ELF here since this information is
3794 only available after bfd_check_format_matches is called. */
3795 if (do_debug_sections
!= compress_gnu_zlib
)
3796 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3799 ibfd
->flags
|= BFD_DECOMPRESS
;
3805 switch (do_elf_stt_common
)
3807 case elf_stt_common
:
3808 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3811 case no_elf_stt_common
:
3812 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3818 if (bfd_check_format (ibfd
, bfd_archive
))
3820 bool force_output_target
;
3823 /* bfd_get_target does not return the correct value until
3824 bfd_check_format succeeds. */
3825 if (output_target
== NULL
)
3827 output_target
= bfd_get_target (ibfd
);
3828 force_output_target
= false;
3831 force_output_target
= true;
3834 obfd
= bfd_fdopenw (output_filename
, output_target
, ofd
);
3836 obfd
= bfd_openw (output_filename
, output_target
);
3841 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3846 if (gnu_debuglink_filename
!= NULL
)
3848 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3849 bfd_get_filename (ibfd
));
3850 gnu_debuglink_filename
= NULL
;
3853 /* This is a no-op on non-Coff targets. */
3854 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3856 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3858 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3863 /* bfd_get_target does not return the correct value until
3864 bfd_check_format succeeds. */
3865 if (output_target
== NULL
)
3866 output_target
= bfd_get_target (ibfd
);
3869 obfd
= bfd_fdopenw (output_filename
, output_target
, ofd
);
3871 obfd
= bfd_openw (output_filename
, output_target
);
3876 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3881 /* This is a no-op on non-Coff targets. */
3882 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3884 if (! copy_object (ibfd
, obfd
, input_arch
))
3887 /* PR 17512: file: 0f15796a.
3888 If the file could not be copied it may not be in a writeable
3889 state. So use bfd_close_all_done to avoid the possibility of
3890 writing uninitialised data into the file. */
3891 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3894 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3898 if (!bfd_close (ibfd
))
3901 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3907 bfd_error_type obj_error
= bfd_get_error ();
3908 bfd_error_type core_error
;
3910 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3912 /* This probably can't happen.. */
3913 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3914 free (obj_matching
);
3918 core_error
= bfd_get_error ();
3919 /* Report the object error in preference to the core error. */
3920 if (obj_error
!= core_error
)
3921 bfd_set_error (obj_error
);
3923 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3925 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3927 list_matching_formats (obj_matching
);
3928 free (obj_matching
);
3930 if (core_error
== bfd_error_file_ambiguously_recognized
)
3932 list_matching_formats (core_matching
);
3933 free (core_matching
);
3940 /* Add a name to the section renaming list. */
3943 add_section_rename (const char * old_name
, const char * new_name
,
3946 section_rename
* srename
;
3948 /* Check for conflicts first. */
3949 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3950 if (strcmp (srename
->old_name
, old_name
) == 0)
3952 /* Silently ignore duplicate definitions. */
3953 if (strcmp (srename
->new_name
, new_name
) == 0
3954 && srename
->flags
== flags
)
3957 fatal (_("Multiple renames of section %s"), old_name
);
3960 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3962 srename
->old_name
= old_name
;
3963 srename
->new_name
= new_name
;
3964 srename
->flags
= flags
;
3965 srename
->next
= section_rename_list
;
3967 section_rename_list
= srename
;
3970 /* Check the section rename list for a new name of the input section
3971 called OLD_NAME. Returns the new name if one is found and sets
3972 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3975 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3977 const section_rename
*srename
;
3979 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3980 if (strcmp (srename
->old_name
, old_name
) == 0)
3982 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3983 *returned_flags
= srename
->flags
;
3985 return srename
->new_name
;
3991 /* Once each of the sections is copied, we may still need to do some
3992 finalization work for private section headers. Do that here. */
3995 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3997 /* Allow the BFD backend to copy any private data it understands
3998 from the input section to the output section. */
3999 if (! bfd_copy_private_header_data (ibfd
, obfd
))
4002 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
4003 _("error in private header data"));
4007 /* All went well. */
4011 /* Create a section in OBFD with the same
4012 name and attributes as ISECTION in IBFD. */
4015 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4017 bfd
*obfd
= (bfd
*) obfdarg
;
4018 struct section_list
*p
;
4026 const char * new_name
;
4027 char *prefix
= NULL
;
4029 unsigned int alignment
;
4031 if (is_strip_section (ibfd
, isection
))
4034 /* Get the, possibly new, name of the output section. */
4035 name
= bfd_section_name (isection
);
4036 flags
= bfd_section_flags (isection
);
4037 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
4039 flags
&= bfd_applicable_section_flags (ibfd
);
4040 flags
&= bfd_applicable_section_flags (obfd
);
4042 new_name
= find_section_rename (name
, &flags
);
4043 if (new_name
!= name
)
4046 flags
= check_new_section_flags (flags
, obfd
, name
);
4049 /* Prefix sections. */
4050 if (prefix_alloc_sections_string
4051 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
4052 prefix
= prefix_alloc_sections_string
;
4053 else if (prefix_sections_string
)
4054 prefix
= prefix_sections_string
;
4060 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4066 make_nobits
= false;
4068 p
= find_section_list (bfd_section_name (isection
), false,
4069 SECTION_CONTEXT_SET_FLAGS
);
4072 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4073 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4075 else if (strip_symbols
== STRIP_NONDEBUG
4076 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4077 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4079 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4080 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4084 /* Twiddle the input section flags so that it seems to
4085 elf.c:copy_private_bfd_data that section flags have not
4086 changed between input and output sections. This hack
4087 prevents wholesale rewriting of the program headers. */
4088 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4092 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4094 if (osection
== NULL
)
4096 err
= _("failed to create output section");
4100 size
= bfd_section_size (isection
);
4101 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4103 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4104 else if (extract_symbol
)
4106 if (!bfd_set_section_size (osection
, size
))
4108 err
= _("failed to set size");
4112 vma
= bfd_section_vma (isection
);
4113 p
= find_section_list (bfd_section_name (isection
), false,
4114 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4117 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4123 vma
+= change_section_address
;
4125 if (!bfd_set_section_vma (osection
, vma
))
4127 err
= _("failed to set vma");
4131 lma
= isection
->lma
;
4132 p
= find_section_list (bfd_section_name (isection
), false,
4133 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4136 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4142 lma
+= change_section_address
;
4144 osection
->lma
= lma
;
4146 p
= find_section_list (bfd_section_name (isection
), false,
4147 SECTION_CONTEXT_SET_ALIGNMENT
);
4149 alignment
= p
->alignment
;
4151 alignment
= bfd_section_alignment (isection
);
4153 /* FIXME: This is probably not enough. If we change the LMA we
4154 may have to recompute the header for the file as well. */
4155 if (!bfd_set_section_alignment (osection
, alignment
))
4157 err
= _("failed to set alignment");
4161 /* Copy merge entity size. */
4162 osection
->entsize
= isection
->entsize
;
4164 /* Copy compress status. */
4165 osection
->compress_status
= isection
->compress_status
;
4167 /* This used to be mangle_section; we do here to avoid using
4168 bfd_get_section_by_name since some formats allow multiple
4169 sections with the same name. */
4170 isection
->output_section
= osection
;
4171 isection
->output_offset
= 0;
4173 if ((isection
->flags
& SEC_GROUP
) != 0)
4175 asymbol
*gsym
= group_signature (isection
);
4179 gsym
->flags
|= BSF_KEEP
;
4180 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4181 elf_group_id (isection
) = gsym
;
4185 /* Allow the BFD backend to copy any private data it understands
4186 from the input section to the output section. */
4187 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4189 err
= _("failed to copy private data");
4194 elf_section_type (osection
) = SHT_NOBITS
;
4196 /* All went well. */
4201 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4204 /* Return TRUE if input section ISECTION should be skipped. */
4207 skip_section (bfd
*ibfd
, sec_ptr isection
, bool skip_copy
)
4213 /* If we have already failed earlier on,
4214 do not keep on generating complaints now. */
4221 if (is_strip_section (ibfd
, isection
))
4224 if (is_update_section (ibfd
, isection
))
4227 /* When merging a note section we skip the copying of the contents,
4228 but not the copying of the relocs associated with the contents. */
4229 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4232 flags
= bfd_section_flags (isection
);
4233 if ((flags
& SEC_GROUP
) != 0)
4236 osection
= isection
->output_section
;
4237 size
= bfd_section_size (isection
);
4239 if (size
== 0 || osection
== 0)
4245 /* Add section SECTION_PATTERN to the list of sections that will have their
4246 relocations removed. */
4249 handle_remove_relocations_option (const char *section_pattern
)
4251 find_section_list (section_pattern
, true, SECTION_CONTEXT_REMOVE_RELOCS
);
4254 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4255 otherwise return FALSE. If the user has requested that relocations be
4256 removed from a section that does not have relocations then this
4257 function will still return TRUE. */
4260 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4262 return (find_section_list (bfd_section_name (isection
), false,
4263 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4266 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4267 A special case is detected here, if the user asks to remove a relocation
4268 section (one starting with ".rela" or ".rel") then this removal must
4269 be done using a different technique in a relocatable object. */
4272 handle_remove_section_option (const char *section_pattern
)
4274 find_section_list (section_pattern
, true, SECTION_CONTEXT_REMOVE
);
4275 if (startswith (section_pattern
, ".rel"))
4277 section_pattern
+= 4;
4278 if (*section_pattern
== 'a')
4280 if (*section_pattern
)
4281 handle_remove_relocations_option (section_pattern
);
4283 sections_removed
= true;
4286 /* Copy relocations in input section ISECTION of IBFD to an output
4287 section with the same name in OBFDARG. If stripping then don't
4288 copy any relocation info. */
4291 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4293 bfd
*obfd
= (bfd
*) obfdarg
;
4299 if (skip_section (ibfd
, isection
, false))
4302 osection
= isection
->output_section
;
4304 /* Core files and DWO files do not need to be relocated. */
4305 if (bfd_get_format (obfd
) == bfd_core
4306 || strip_symbols
== STRIP_NONDWO
4307 || discard_relocations (ibfd
, isection
))
4311 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4315 /* Do not complain if the target does not support relocations. */
4316 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4321 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4329 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4330 osection
->flags
&= ~SEC_RELOC
;
4334 if (isection
->orelocation
!= NULL
)
4336 /* Some other function has already set up the output relocs
4337 for us, so scan those instead of the default relocs. */
4338 relcount
= isection
->reloc_count
;
4339 relpp
= isection
->orelocation
;
4343 relpp
= (arelent
**) xmalloc (relsize
);
4344 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4348 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4349 _("relocation count is negative"));
4355 if (strip_symbols
== STRIP_ALL
)
4357 /* Remove relocations which are not in
4358 keep_strip_specific_list. */
4359 arelent
**temp_relpp
;
4360 long temp_relcount
= 0;
4363 temp_relpp
= (arelent
**) xmalloc (relsize
);
4364 for (i
= 0; i
< relcount
; i
++)
4366 /* PR 17512: file: 9e907e0c. */
4367 if (relpp
[i
]->sym_ptr_ptr
4369 && * relpp
[i
]->sym_ptr_ptr
)
4370 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4371 keep_specific_htab
))
4372 temp_relpp
[temp_relcount
++] = relpp
[i
];
4374 relcount
= temp_relcount
;
4375 if (relpp
!= isection
->orelocation
)
4380 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4383 osection
->flags
&= ~SEC_RELOC
;
4384 if (relpp
!= isection
->orelocation
)
4390 /* Copy the data of input section ISECTION of IBFD
4391 to an output section with the same name in OBFD. */
4394 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4396 bfd
*obfd
= (bfd
*) obfdarg
;
4397 struct section_list
*p
;
4401 if (skip_section (ibfd
, isection
, true))
4404 osection
= isection
->output_section
;
4405 /* The output SHF_COMPRESSED section size is different from input if
4406 ELF classes of input and output aren't the same. We can't use
4407 the output section size since --interleave will shrink the output
4408 section. Size will be updated if the section is converted. */
4409 size
= bfd_section_size (isection
);
4411 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4412 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4414 bfd_byte
*memhunk
= NULL
;
4416 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4417 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4421 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4428 /* We don't handle leftover bytes (too many possible behaviors,
4429 and we don't know what the user wants). The section length
4430 must be a multiple of the number of bytes to swap. */
4431 if ((size
% reverse_bytes
) == 0)
4436 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4437 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4439 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4442 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4443 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4447 /* User must pad the section up in order to do this. */
4448 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4449 bfd_section_name (isection
), reverse_bytes
);
4454 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4455 char *from
= (char *) memhunk
+ copy_byte
;
4456 char *to
= (char *) memhunk
;
4457 char *end
= (char *) memhunk
+ size
;
4460 /* If the section address is not exactly divisible by the interleave,
4461 then we must bias the from address. If the copy_byte is less than
4462 the bias, then we must skip forward one interleave, and increment
4464 int extra
= isection
->lma
% interleave
;
4466 if (copy_byte
< extra
)
4469 for (; from
< end
; from
+= interleave
)
4470 for (i
= 0; i
< copy_width
; i
++)
4472 if (&from
[i
] >= end
)
4477 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4478 osection
->lma
/= interleave
;
4479 if (copy_byte
< extra
)
4483 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4486 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4492 else if ((p
= find_section_list (bfd_section_name (isection
),
4493 false, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4494 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4496 void *memhunk
= xmalloc (size
);
4498 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4499 flag--they can just remove the section entirely and add it
4500 back again. However, we do permit them to turn on the
4501 SEC_HAS_CONTENTS flag, and take it to mean that the section
4502 contents should be zeroed out. */
4504 memset (memhunk
, 0, size
);
4505 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4508 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4516 /* Get all the sections. This is used when --gap-fill or --pad-to is
4520 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4522 asection
***secppp
= (asection
***) secppparg
;
4524 **secppp
= osection
;
4528 /* Sort sections by LMA. This is called via qsort, and is used when
4529 --gap-fill or --pad-to is used. We force non loadable or empty
4530 sections to the front, where they are easier to ignore. */
4533 compare_section_lma (const void *arg1
, const void *arg2
)
4535 const asection
*sec1
= *(const asection
**) arg1
;
4536 const asection
*sec2
= *(const asection
**) arg2
;
4537 flagword flags1
, flags2
;
4539 /* Sort non loadable sections to the front. */
4540 flags1
= sec1
->flags
;
4541 flags2
= sec2
->flags
;
4542 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4543 || (flags1
& SEC_LOAD
) == 0)
4545 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4546 && (flags2
& SEC_LOAD
) != 0)
4551 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4552 || (flags2
& SEC_LOAD
) == 0)
4556 /* Sort sections by LMA. */
4557 if (sec1
->lma
> sec2
->lma
)
4559 if (sec1
->lma
< sec2
->lma
)
4562 /* Sort sections with the same LMA by size. */
4563 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4565 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4568 if (sec1
->id
> sec2
->id
)
4570 if (sec1
->id
< sec2
->id
)
4575 /* Mark all the symbols which will be used in output relocations with
4576 the BSF_KEEP flag so that those symbols will not be stripped.
4578 Ignore relocations which will not appear in the output file. */
4581 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4583 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4588 /* Ignore an input section with no corresponding output section. */
4589 if (isection
->output_section
== NULL
)
4592 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4595 /* Do not complain if the target does not support relocations. */
4596 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4598 bfd_fatal (bfd_get_filename (ibfd
));
4604 relpp
= (arelent
**) xmalloc (relsize
);
4605 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4607 bfd_fatal (bfd_get_filename (ibfd
));
4609 /* Examine each symbol used in a relocation. If it's not one of the
4610 special bfd section symbols, then mark it with BSF_KEEP. */
4611 for (i
= 0; i
< relcount
; i
++)
4613 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4614 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4615 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4616 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4617 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4618 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4619 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4625 /* Write out debugging information. */
4628 write_debugging_info (bfd
*obfd
, void *dhandle
,
4629 long *symcountp ATTRIBUTE_UNUSED
,
4630 asymbol
***symppp ATTRIBUTE_UNUSED
)
4632 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4633 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4635 bfd_byte
*syms
, *strings
= NULL
;
4636 bfd_size_type symsize
, stringsize
;
4637 asection
*stabsec
, *stabstrsec
;
4640 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4645 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4646 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4647 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4649 || stabstrsec
== NULL
4650 || !bfd_set_section_size (stabsec
, symsize
)
4651 || !bfd_set_section_size (stabstrsec
, stringsize
)
4652 || !bfd_set_section_alignment (stabsec
, 2)
4653 || !bfd_set_section_alignment (stabstrsec
, 0))
4655 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4656 _("can't create debugging section"));
4661 /* We can get away with setting the section contents now because
4662 the next thing the caller is going to do is copy over the
4663 real sections. We may someday have to split the contents
4664 setting out of this function. */
4665 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4666 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4669 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4670 _("can't set debugging section contents"));
4678 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4679 _("don't know how to write debugging information for %s"),
4680 bfd_get_target (obfd
));
4684 /* If neither -D nor -U was specified explicitly,
4685 then use the configured default. */
4687 default_deterministic (void)
4689 if (deterministic
< 0)
4690 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4694 strip_main (int argc
, char *argv
[])
4696 char *input_target
= NULL
;
4697 char *output_target
= NULL
;
4698 bool show_version
= false;
4699 bool formats_info
= false;
4702 char *output_file
= NULL
;
4703 bool merge_notes_set
= false;
4705 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4706 strip_options
, (int *) 0)) != EOF
)
4711 input_target
= optarg
;
4714 output_target
= optarg
;
4717 input_target
= output_target
= optarg
;
4720 handle_remove_section_option (optarg
);
4722 case OPTION_KEEP_SECTION
:
4723 find_section_list (optarg
, true, SECTION_CONTEXT_KEEP
);
4725 case OPTION_REMOVE_RELOCS
:
4726 handle_remove_relocations_option (optarg
);
4729 strip_symbols
= STRIP_ALL
;
4733 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4734 strip_symbols
= STRIP_DEBUG
;
4736 case OPTION_STRIP_DWO
:
4737 strip_symbols
= STRIP_DWO
;
4739 case OPTION_STRIP_UNNEEDED
:
4740 strip_symbols
= STRIP_UNNEEDED
;
4743 add_specific_symbol (optarg
, keep_specific_htab
);
4747 merge_notes_set
= true;
4749 case OPTION_NO_MERGE_NOTES
:
4750 merge_notes
= false;
4751 merge_notes_set
= true;
4754 add_specific_symbol (optarg
, strip_specific_htab
);
4757 output_file
= optarg
;
4760 preserve_dates
= true;
4763 deterministic
= true;
4766 deterministic
= false;
4769 discard_locals
= LOCALS_ALL
;
4772 discard_locals
= LOCALS_START_L
;
4778 show_version
= true;
4780 case OPTION_FORMATS_INFO
:
4781 formats_info
= true;
4783 case OPTION_ONLY_KEEP_DEBUG
:
4784 strip_symbols
= STRIP_NONDEBUG
;
4786 case OPTION_KEEP_FILE_SYMBOLS
:
4787 keep_file_symbols
= 1;
4789 case OPTION_KEEP_SECTION_SYMBOLS
:
4790 keep_section_symbols
= true;
4793 /* We've been given a long option. */
4800 strip_usage (stdout
, 0);
4802 strip_usage (stderr
, 1);
4806 /* If the user has not expressly chosen to merge/not-merge ELF notes
4807 then enable the merging unless we are stripping debug or dwo info. */
4808 if (! merge_notes_set
4809 && (strip_symbols
== STRIP_UNDEF
4810 || strip_symbols
== STRIP_ALL
4811 || strip_symbols
== STRIP_UNNEEDED
4812 || strip_symbols
== STRIP_NONDEBUG
4813 || strip_symbols
== STRIP_NONDWO
))
4823 print_version ("strip");
4825 default_deterministic ();
4827 /* Default is to strip all symbols. */
4828 if (strip_symbols
== STRIP_UNDEF
4829 && discard_locals
== LOCALS_UNDEF
4830 && htab_elements (strip_specific_htab
) == 0)
4831 strip_symbols
= STRIP_ALL
;
4833 if (output_target
== NULL
)
4834 output_target
= input_target
;
4838 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4839 strip_usage (stderr
, 1);
4841 for (; i
< argc
; i
++)
4843 int hold_status
= status
;
4844 struct stat statbuf
;
4849 if (get_file_size (argv
[i
]) < 1)
4855 if (output_file
== NULL
4856 || filename_cmp (argv
[i
], output_file
) == 0)
4858 tmpname
= make_tempname (argv
[i
], &tmpfd
);
4860 copyfd
= dup (tmpfd
);
4863 tmpname
= output_file
;
4865 if (tmpname
== NULL
)
4867 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4868 _("could not create temporary file to hold stripped copy"));
4874 copy_file (argv
[i
], tmpname
, tmpfd
, &statbuf
, input_target
,
4875 output_target
, NULL
);
4878 const char *oname
= output_file
? output_file
: argv
[i
];
4879 status
= smart_rename (tmpname
, oname
, copyfd
,
4880 &statbuf
, preserve_dates
) != 0;
4882 status
= hold_status
;
4888 unlink_if_ordinary (tmpname
);
4890 if (output_file
!= tmpname
)
4897 /* Set up PE subsystem. */
4900 set_pe_subsystem (const char *s
)
4902 const char *version
, *subsystem
;
4912 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4913 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4914 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4915 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4916 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4917 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4918 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4919 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4920 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4921 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4927 /* Check for the presence of a version number. */
4928 version
= strchr (s
, ':');
4929 if (version
== NULL
)
4933 int len
= version
- s
;
4937 version
= copy
+ 1 + len
;
4938 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4940 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4942 non_fatal (_("%s: bad version in PE subsystem"), s
);
4945 /* Check for numeric subsystem. */
4946 value
= (short) strtol (subsystem
, ©
, 0);
4949 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4950 if (v
[i
].value
== value
)
4952 pe_subsystem
= value
;
4953 set_def
= v
[i
].set_def
;
4959 /* Search for subsystem by name. */
4960 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4961 if (strcmp (subsystem
, v
[i
].name
) == 0)
4963 pe_subsystem
= v
[i
].value
;
4964 set_def
= v
[i
].set_def
;
4972 fatal (_("unknown PE subsystem: %s"), s
);
4977 if (pe_file_alignment
== (bfd_vma
) -1)
4978 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4979 if (pe_section_alignment
== (bfd_vma
) -1)
4980 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4984 free ((char *) subsystem
);
4987 /* Convert EFI target to PEI target. */
4990 convert_efi_target (char **targ
)
4994 char *efi
= *targ
+ 4;
4997 if (startswith (efi
, "app-"))
4998 subsys
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
4999 else if (startswith (efi
, "bsdrv-"))
5001 subsys
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5004 else if (startswith (efi
, "rtdrv-"))
5006 subsys
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5013 pei
= xmalloc (len
+ sizeof ("-little"));
5014 memcpy (pei
, efi
, len
+ 1);
5019 if (strcmp (efi
+ 4, "ia32") == 0)
5021 /* Change ia32 to i386. */
5026 else if (strcmp (efi
+ 4, "x86_64") == 0)
5028 /* Change x86_64 to x86-64. */
5031 else if (strcmp (efi
+ 4, "aarch64") == 0)
5033 /* Change aarch64 to aarch64-little. */
5034 memcpy (pei
+ 4 + sizeof ("aarch64") - 1, "-little", sizeof ("-little"));
5040 /* Allocate and return a pointer to a struct section_add, initializing the
5041 structure using ARG, a string in the format "sectionname=filename".
5042 The returned structure will have its next pointer set to NEXT. The
5043 OPTION field is the name of the command line option currently being
5044 parsed, and is only used if an error needs to be reported. */
5046 static struct section_add
*
5047 init_section_add (const char *arg
,
5048 struct section_add
*next
,
5051 struct section_add
*pa
;
5054 s
= strchr (arg
, '=');
5056 fatal (_("bad format for %s"), option
);
5058 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
5059 pa
->name
= xstrndup (arg
, s
- arg
);
5060 pa
->filename
= s
+ 1;
5062 pa
->contents
= NULL
;
5068 /* Load the file specified in PA, allocating memory to hold the file
5069 contents, and store a pointer to the allocated memory in the contents
5070 field of PA. The size field of PA is also updated. All errors call
5074 section_add_load_file (struct section_add
*pa
)
5079 /* We don't use get_file_size so that we can do
5080 --add-section .note.GNU_stack=/dev/null
5081 get_file_size doesn't work on /dev/null. */
5083 f
= fopen (pa
->filename
, FOPEN_RB
);
5085 fatal (_("cannot open: %s: %s"),
5086 pa
->filename
, strerror (errno
));
5090 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5098 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5101 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5103 fatal (_("%s: fread failed"), pa
->filename
);
5114 copy_main (int argc
, char *argv
[])
5116 char *input_filename
= NULL
;
5117 char *output_filename
= NULL
;
5119 char *input_target
= NULL
;
5120 char *output_target
= NULL
;
5121 bool show_version
= false;
5122 bool change_warn
= true;
5123 bool formats_info
= false;
5124 bool use_globalize
= false;
5125 bool use_keep_global
= false;
5129 struct stat statbuf
;
5130 const bfd_arch_info_type
*input_arch
= NULL
;
5132 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5133 copy_options
, (int *) 0)) != EOF
)
5138 copy_byte
= atoi (optarg
);
5140 fatal (_("byte number must be non-negative"));
5144 input_arch
= bfd_scan_arch (optarg
);
5145 if (input_arch
== NULL
)
5146 fatal (_("architecture %s unknown"), optarg
);
5152 interleave
= atoi (optarg
);
5154 fatal (_("interleave must be positive"));
5160 case OPTION_INTERLEAVE_WIDTH
:
5161 copy_width
= atoi (optarg
);
5163 fatal(_("interleave width must be positive"));
5167 case 's': /* "source" - 'I' is preferred */
5168 input_target
= optarg
;
5172 case 'd': /* "destination" - 'O' is preferred */
5173 output_target
= optarg
;
5177 input_target
= output_target
= optarg
;
5181 find_section_list (optarg
, true, SECTION_CONTEXT_COPY
);
5182 sections_copied
= true;
5186 handle_remove_section_option (optarg
);
5189 case OPTION_KEEP_SECTION
:
5190 find_section_list (optarg
, true, SECTION_CONTEXT_KEEP
);
5193 case OPTION_REMOVE_RELOCS
:
5194 handle_remove_relocations_option (optarg
);
5198 strip_symbols
= STRIP_ALL
;
5202 strip_symbols
= STRIP_DEBUG
;
5205 case OPTION_STRIP_DWO
:
5206 strip_symbols
= STRIP_DWO
;
5209 case OPTION_STRIP_UNNEEDED
:
5210 strip_symbols
= STRIP_UNNEEDED
;
5213 case OPTION_ONLY_KEEP_DEBUG
:
5214 strip_symbols
= STRIP_NONDEBUG
;
5217 case OPTION_KEEP_FILE_SYMBOLS
:
5218 keep_file_symbols
= 1;
5221 case OPTION_ADD_GNU_DEBUGLINK
:
5222 long_section_names
= ENABLE
;
5223 gnu_debuglink_filename
= optarg
;
5227 add_specific_symbol (optarg
, keep_specific_htab
);
5233 case OPTION_NO_MERGE_NOTES
:
5234 merge_notes
= false;
5238 add_specific_symbol (optarg
, strip_specific_htab
);
5241 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5242 add_specific_symbol (optarg
, strip_unneeded_htab
);
5246 add_specific_symbol (optarg
, localize_specific_htab
);
5249 case OPTION_GLOBALIZE_SYMBOL
:
5250 use_globalize
= true;
5251 add_specific_symbol (optarg
, globalize_specific_htab
);
5255 use_keep_global
= true;
5256 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5260 add_specific_symbol (optarg
, weaken_specific_htab
);
5264 preserve_dates
= true;
5268 deterministic
= true;
5272 deterministic
= false;
5280 discard_locals
= LOCALS_ALL
;
5284 discard_locals
= LOCALS_START_L
;
5292 show_version
= true;
5295 case OPTION_FORMATS_INFO
:
5296 formats_info
= true;
5303 case OPTION_ADD_SECTION
:
5304 add_sections
= init_section_add (optarg
, add_sections
,
5306 section_add_load_file (add_sections
);
5309 case OPTION_UPDATE_SECTION
:
5310 update_sections
= init_section_add (optarg
, update_sections
,
5311 "--update-section");
5312 section_add_load_file (update_sections
);
5315 case OPTION_DUMP_SECTION
:
5316 dump_sections
= init_section_add (optarg
, dump_sections
,
5320 case OPTION_ADD_SYMBOL
:
5323 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5325 newsym
->next
= NULL
;
5326 s
= strchr (optarg
, '=');
5328 fatal (_("bad format for %s"), "--add-symbol");
5329 t
= strchr (s
+ 1, ':');
5331 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5334 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5335 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5339 newsym
->section
= NULL
;
5340 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5344 t
= strchr (t
+ 1, ',');
5345 newsym
->othersym
= NULL
;
5347 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5349 newsym
->flags
= BSF_GLOBAL
;
5351 /* Keep 'othersym' symbols at the front of the list. */
5352 if (newsym
->othersym
)
5354 newsym
->next
= add_sym_list
;
5356 add_sym_tail
= &newsym
->next
;
5357 add_sym_list
= newsym
;
5361 *add_sym_tail
= newsym
;
5362 add_sym_tail
= &newsym
->next
;
5368 case OPTION_CHANGE_START
:
5369 change_start
= parse_vma (optarg
, "--change-start");
5372 case OPTION_CHANGE_SECTION_ADDRESS
:
5373 case OPTION_CHANGE_SECTION_LMA
:
5374 case OPTION_CHANGE_SECTION_VMA
:
5376 struct section_list
* p
;
5377 unsigned int context
= 0;
5381 char *option
= NULL
;
5386 case OPTION_CHANGE_SECTION_ADDRESS
:
5387 option
= "--change-section-address";
5388 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5390 case OPTION_CHANGE_SECTION_LMA
:
5391 option
= "--change-section-lma";
5392 context
= SECTION_CONTEXT_ALTER_LMA
;
5394 case OPTION_CHANGE_SECTION_VMA
:
5395 option
= "--change-section-vma";
5396 context
= SECTION_CONTEXT_ALTER_VMA
;
5400 s
= strchr (optarg
, '=');
5403 s
= strchr (optarg
, '+');
5406 s
= strchr (optarg
, '-');
5408 fatal (_("bad format for %s"), option
);
5413 /* Correct the context. */
5416 case OPTION_CHANGE_SECTION_ADDRESS
:
5417 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5419 case OPTION_CHANGE_SECTION_LMA
:
5420 context
= SECTION_CONTEXT_SET_LMA
;
5422 case OPTION_CHANGE_SECTION_VMA
:
5423 context
= SECTION_CONTEXT_SET_VMA
;
5429 name
= (char *) xmalloc (len
+ 1);
5430 strncpy (name
, optarg
, len
);
5433 p
= find_section_list (name
, true, context
);
5435 val
= parse_vma (s
+ 1, option
);
5441 case OPTION_CHANGE_SECTION_ADDRESS
:
5445 case OPTION_CHANGE_SECTION_LMA
:
5449 case OPTION_CHANGE_SECTION_VMA
:
5456 case OPTION_CHANGE_ADDRESSES
:
5457 change_section_address
= parse_vma (optarg
, "--change-addresses");
5458 change_start
= change_section_address
;
5461 case OPTION_CHANGE_WARNINGS
:
5465 case OPTION_CHANGE_LEADING_CHAR
:
5466 change_leading_char
= true;
5469 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5472 if (strcasecmp (optarg
, "none") == 0)
5473 do_debug_sections
= decompress
;
5474 else if (strcasecmp (optarg
, "zlib") == 0)
5475 do_debug_sections
= compress_zlib
;
5476 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5477 do_debug_sections
= compress_gnu_zlib
;
5478 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5479 do_debug_sections
= compress_gabi_zlib
;
5481 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5485 do_debug_sections
= compress
;
5488 case OPTION_DEBUGGING
:
5489 convert_debugging
= true;
5492 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5493 do_debug_sections
= decompress
;
5496 case OPTION_ELF_STT_COMMON
:
5497 if (strcasecmp (optarg
, "yes") == 0)
5498 do_elf_stt_common
= elf_stt_common
;
5499 else if (strcasecmp (optarg
, "no") == 0)
5500 do_elf_stt_common
= no_elf_stt_common
;
5502 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5506 case OPTION_GAP_FILL
:
5508 bfd_vma gap_fill_vma
;
5510 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5511 gap_fill
= (bfd_byte
) gap_fill_vma
;
5512 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5516 sprintf_vma (buff
, gap_fill_vma
);
5518 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
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
))
5989 sprintf_vma (buff
, p
->vma_val
);
5991 /* xgettext:c-format */
5992 non_fatal (_("%s %s%c0x%s never used"),
5993 "--change-section-vma",
5995 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5999 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
6003 sprintf_vma (buff
, p
->lma_val
);
6005 /* xgettext:c-format */
6006 non_fatal (_("%s %s%c0x%s never used"),
6007 "--change-section-lma",
6009 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
6016 free (strip_specific_buffer
);
6017 free (strip_unneeded_buffer
);
6018 free (keep_specific_buffer
);
6019 free (localize_specific_buffer
);
6020 free (globalize_specific_buffer
);
6021 free (keepglobal_specific_buffer
);
6022 free (weaken_specific_buffer
);
6028 main (int argc
, char *argv
[])
6030 #ifdef HAVE_LC_MESSAGES
6031 setlocale (LC_MESSAGES
, "");
6033 setlocale (LC_CTYPE
, "");
6034 bindtextdomain (PACKAGE
, LOCALEDIR
);
6035 textdomain (PACKAGE
);
6037 program_name
= argv
[0];
6038 xmalloc_set_program_name (program_name
);
6040 START_PROGRESS (program_name
, 0);
6042 expandargv (&argc
, &argv
);
6044 strip_symbols
= STRIP_UNDEF
;
6045 discard_locals
= LOCALS_UNDEF
;
6047 if (bfd_init () != BFD_INIT_MAGIC
)
6048 fatal (_("fatal error: libbfd ABI mismatch"));
6049 set_default_bfd_target ();
6053 int i
= strlen (program_name
);
6054 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6055 /* Drop the .exe suffix, if any. */
6056 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6059 program_name
[i
] = '\0';
6062 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6065 create_symbol_htabs ();
6068 bfd_set_error_program_name (argv
[0]);
6071 strip_main (argc
, argv
);
6073 copy_main (argc
, argv
);
6075 END_PROGRESS (program_name
);