1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2021 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
,
1028 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
1031 eq_string (const void *s1
, const void *s2
)
1033 return strcmp ((const char *) s1
, (const char *) s2
) == 0;
1037 create_symbol_htab (void)
1039 return htab_create_alloc (16, htab_hash_string
, eq_string
, NULL
, xcalloc
, free
);
1043 create_symbol_htabs (void)
1045 strip_specific_htab
= create_symbol_htab ();
1046 strip_unneeded_htab
= create_symbol_htab ();
1047 keep_specific_htab
= create_symbol_htab ();
1048 localize_specific_htab
= create_symbol_htab ();
1049 globalize_specific_htab
= create_symbol_htab ();
1050 keepglobal_specific_htab
= create_symbol_htab ();
1051 weaken_specific_htab
= create_symbol_htab ();
1052 redefine_specific_htab
= create_symbol2redef_htab ();
1053 /* As there is no bidirectional hash table in libiberty, need a reverse table
1054 to check duplicated target string. */
1055 redefine_specific_reverse_htab
= create_symbol_htab ();
1058 /* Add a symbol to strip_specific_list. */
1061 add_specific_symbol (const char *name
, htab_t htab
)
1063 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1066 /* Like add_specific_symbol, but the element type is void *. */
1069 add_specific_symbol_node (const void *node
, htab_t htab
)
1071 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1074 /* Add symbols listed in `filename' to strip_specific_list. */
1076 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1077 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1080 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1086 unsigned int line_count
;
1088 size
= get_file_size (filename
);
1095 buffer
= (char *) xmalloc (size
+ 2);
1096 f
= fopen (filename
, FOPEN_RT
);
1098 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1100 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1101 fatal (_("%s: fread failed"), filename
);
1104 buffer
[size
] = '\n';
1105 buffer
[size
+ 1] = '\0';
1109 for (line
= buffer
; * line
!= '\0'; line
++)
1114 int finished
= false;
1116 for (eol
= line
;; eol
++)
1122 /* Cope with \n\r. */
1130 /* Cope with \r\n. */
1141 /* Line comment, Terminate the line here, in case a
1142 name is present and then allow the rest of the
1143 loop to find the real end of the line. */
1155 /* A name may now exist somewhere between 'line' and 'eol'.
1156 Strip off leading whitespace and trailing whitespace,
1157 then add it to the list. */
1158 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1160 for (name_end
= name
;
1161 (! IS_WHITESPACE (* name_end
))
1162 && (! IS_LINE_TERMINATOR (* name_end
));
1166 if (! IS_LINE_TERMINATOR (* name_end
))
1170 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1173 if (! IS_LINE_TERMINATOR (* extra
))
1174 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1175 filename
, line_count
);
1180 if (name_end
> name
)
1181 add_specific_symbol (name
, htab
);
1183 /* Advance line pointer to end of line. The 'eol ++' in the for
1184 loop above will then advance us to the start of the next line. */
1189 /* Do not free the buffer. Parts of it will have been referenced
1190 in the calls to add_specific_symbol. */
1194 /* See whether a symbol should be stripped or kept
1195 based on strip_specific_list and keep_symbols. */
1198 is_specified_symbol_predicate (void **slot
, void *data
)
1200 struct is_specified_symbol_predicate_data
*d
=
1201 (struct is_specified_symbol_predicate_data
*) data
;
1202 const char *slot_name
= (char *) *slot
;
1204 if (*slot_name
!= '!')
1206 if (! fnmatch (slot_name
, d
->name
, 0))
1209 /* Continue traversal, there might be a non-match rule. */
1215 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1218 /* Stop traversal. */
1223 /* Continue traversal. */
1228 is_specified_symbol (const char *name
, htab_t htab
)
1232 struct is_specified_symbol_predicate_data data
;
1237 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1242 return htab_find (htab
, name
) != NULL
;
1245 /* Return a pointer to the symbol used as a signature for GROUP. */
1248 group_signature (asection
*group
)
1250 bfd
*abfd
= group
->owner
;
1251 Elf_Internal_Shdr
*ghdr
;
1253 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1257 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1260 ghdr
= &elf_section_data (group
)->this_hdr
;
1261 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1263 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1264 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1266 if (ghdr
->sh_info
> 0
1267 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1268 return isympp
[ghdr
->sh_info
- 1];
1273 /* Return TRUE if the section is a DWO section. */
1276 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1281 if (sec
== NULL
|| (name
= bfd_section_name (sec
)) == NULL
)
1284 len
= strlen (name
);
1288 return startswith (name
+ len
- 4, ".dwo");
1291 /* Return TRUE if section SEC is in the update list. */
1294 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1296 if (update_sections
!= NULL
)
1298 struct section_add
*pupdate
;
1300 for (pupdate
= update_sections
;
1302 pupdate
= pupdate
->next
)
1304 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1313 is_mergeable_note_section (bfd
* abfd
, asection
* sec
)
1316 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1317 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1318 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1319 We should add support for more note types. */
1320 && (startswith (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
)))
1326 /* See if a non-group section is being removed. */
1329 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1331 if (find_section_list (bfd_section_name (sec
), false, SECTION_CONTEXT_KEEP
)
1335 if (sections_removed
|| sections_copied
)
1337 struct section_list
*p
;
1338 struct section_list
*q
;
1340 p
= find_section_list (bfd_section_name (sec
), false,
1341 SECTION_CONTEXT_REMOVE
);
1342 q
= find_section_list (bfd_section_name (sec
), false,
1343 SECTION_CONTEXT_COPY
);
1346 fatal (_("error: section %s matches both remove and copy options"),
1347 bfd_section_name (sec
));
1348 if (p
&& is_update_section (abfd
, sec
))
1349 fatal (_("error: section %s matches both update and remove options"),
1350 bfd_section_name (sec
));
1354 if (sections_copied
&& q
== NULL
)
1358 if ((bfd_section_flags (sec
) & SEC_DEBUGGING
) != 0)
1360 if (strip_symbols
== STRIP_DEBUG
1361 || strip_symbols
== STRIP_UNNEEDED
1362 || strip_symbols
== STRIP_ALL
1363 || discard_locals
== LOCALS_ALL
1364 || convert_debugging
)
1366 /* By default we don't want to strip .reloc section.
1367 This section has for pe-coff special meaning. See
1368 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1369 if (strcmp (bfd_section_name (sec
), ".reloc") != 0)
1373 if (strip_symbols
== STRIP_DWO
)
1374 return is_dwo_section (abfd
, sec
);
1376 if (strip_symbols
== STRIP_NONDEBUG
)
1380 if (strip_symbols
== STRIP_NONDWO
)
1381 return !is_dwo_section (abfd
, sec
);
1386 /* See if a section is being removed. */
1389 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1391 if (is_strip_section_1 (abfd
, sec
))
1394 if ((bfd_section_flags (sec
) & SEC_GROUP
) != 0)
1398 asection
*elt
, *first
;
1400 gsym
= group_signature (sec
);
1401 /* Strip groups without a valid signature. */
1406 If we are going to strip the group signature symbol, then
1407 strip the group section too. */
1409 if ((strip_symbols
== STRIP_ALL
1410 && !is_specified_symbol (gname
, keep_specific_htab
))
1411 || is_specified_symbol (gname
, strip_specific_htab
))
1414 /* Remove the group section if all members are removed. */
1415 first
= elt
= elf_next_in_group (sec
);
1418 if (!is_strip_section_1 (abfd
, elt
))
1420 elt
= elf_next_in_group (elt
);
1432 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1434 /* Always keep ELF note sections. */
1435 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
1436 return elf_section_type (isection
) == SHT_NOTE
;
1438 /* Always keep the .buildid section for PE/COFF.
1440 Strictly, this should be written "always keep the section storing the debug
1441 directory", but that may be the .text section for objects produced by some
1442 tools, which it is not sensible to keep. */
1443 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
)
1444 return strcmp (bfd_section_name (isection
), ".buildid") == 0;
1449 /* Return true if SYM is a hidden symbol. */
1452 is_hidden_symbol (asymbol
*sym
)
1454 elf_symbol_type
*elf_sym
;
1456 elf_sym
= elf_symbol_from (sym
);
1457 if (elf_sym
!= NULL
)
1458 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1467 /* Empty name is hopefully never a valid symbol name. */
1468 static const char * empty_name
= "";
1471 need_sym_before (struct addsym_node
**node
, const char *sym
)
1474 struct addsym_node
*ptr
= add_sym_list
;
1476 /* 'othersym' symbols are at the front of the list. */
1477 for (count
= 0; count
< add_symbols
; count
++)
1481 if (ptr
->othersym
== empty_name
)
1483 else if (strcmp (ptr
->othersym
, sym
) == 0)
1485 free ((char *) ptr
->othersym
);
1486 ptr
->othersym
= empty_name
;
1496 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1498 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1500 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1501 sym
->value
= ptr
->symval
;
1502 sym
->flags
= ptr
->flags
;
1505 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1507 fatal (_("Section %s not found"), ptr
->section
);
1511 sym
->section
= bfd_abs_section_ptr
;
1515 /* Choose which symbol entries to copy; put the result in OSYMS.
1516 We don't copy in place, because that confuses the relocs.
1517 Return the number of symbols to print. */
1520 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1521 asymbol
**isyms
, long symcount
)
1523 asymbol
**from
= isyms
, **to
= osyms
;
1524 long src_count
= 0, dst_count
= 0;
1525 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1527 for (; src_count
< symcount
; src_count
++)
1529 asymbol
*sym
= from
[src_count
];
1530 flagword flags
= sym
->flags
;
1531 char *name
= (char *) bfd_asymbol_name (sym
);
1533 bool used_in_reloc
= false;
1535 bool rem_leading_char
;
1536 bool add_leading_char
;
1538 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1542 struct addsym_node
*ptr
;
1544 if (need_sym_before (&ptr
, name
))
1545 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1548 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1552 new_name
= (char *) lookup_sym_redefinition (name
);
1553 if (new_name
== name
1554 && (flags
& BSF_SECTION_SYM
) != 0)
1555 new_name
= (char *) find_section_rename (name
, NULL
);
1556 bfd_set_asymbol_name (sym
, new_name
);
1560 /* Check if we will remove the current leading character. */
1563 && name
[0] == bfd_get_symbol_leading_char (abfd
)
1564 && (change_leading_char
1565 || (remove_leading_char
1566 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1568 || bfd_is_com_section (bfd_asymbol_section (sym
))))));
1570 /* Check if we will add a new leading character. */
1573 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1574 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1575 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1577 /* Short circuit for change_leading_char if we can do it in-place. */
1578 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1580 name
[0] = bfd_get_symbol_leading_char (obfd
);
1581 bfd_set_asymbol_name (sym
, name
);
1582 rem_leading_char
= false;
1583 add_leading_char
= false;
1586 /* Remove leading char. */
1587 if (rem_leading_char
)
1588 bfd_set_asymbol_name (sym
, ++name
);
1590 /* Add new leading char and/or prefix. */
1591 if (add_leading_char
|| prefix_symbols_string
)
1594 size_t len
= strlen (name
) + 1;
1596 if (add_leading_char
)
1598 if (prefix_symbols_string
)
1599 len
+= strlen (prefix_symbols_string
);
1601 ptr
= n
= (char *) xmalloc (len
);
1602 if (add_leading_char
)
1603 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1605 if (prefix_symbols_string
)
1607 strcpy (ptr
, prefix_symbols_string
);
1608 ptr
+= strlen (prefix_symbols_string
);
1612 bfd_set_asymbol_name (sym
, n
);
1616 if (strip_symbols
== STRIP_ALL
)
1618 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1619 || ((flags
& BSF_SECTION_SYM
) != 0
1620 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1624 used_in_reloc
= true;
1626 else if (relocatable
/* Relocatable file. */
1627 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1628 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1630 else if (bfd_decode_symclass (sym
) == 'I')
1631 /* Global symbols in $idata sections need to be retained
1632 even if relocatable is FALSE. External users of the
1633 library containing the $idata section may reference these
1636 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1637 || (flags
& BSF_WEAK
) != 0
1639 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1640 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1641 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1642 keep
= (strip_symbols
!= STRIP_DEBUG
1643 && strip_symbols
!= STRIP_UNNEEDED
1644 && ! convert_debugging
);
1645 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1646 /* COMDAT sections store special information in local
1647 symbols, so we cannot risk stripping any of them. */
1649 else /* Local symbol. */
1650 keep
= (strip_symbols
!= STRIP_UNNEEDED
1651 && (discard_locals
!= LOCALS_ALL
1652 && (discard_locals
!= LOCALS_START_L
1653 || ! bfd_is_local_label (abfd
, sym
))));
1655 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1657 /* There are multiple ways to set 'keep' above, but if it
1658 was the relocatable symbol case, then that's an error. */
1661 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1669 && !(flags
& BSF_KEEP
)
1670 && is_specified_symbol (name
, strip_unneeded_htab
))
1674 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1675 || is_specified_symbol (name
, keep_specific_htab
)))
1678 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1683 if (((flags
& BSF_GLOBAL
) != 0
1685 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1687 sym
->flags
&= ~ BSF_GLOBAL
;
1688 sym
->flags
|= BSF_WEAK
;
1692 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1693 && (is_specified_symbol (name
, localize_specific_htab
)
1694 || (htab_elements (keepglobal_specific_htab
) != 0
1695 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1696 || (localize_hidden
&& is_hidden_symbol (sym
))))
1698 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1699 sym
->flags
|= BSF_LOCAL
;
1703 && (flags
& BSF_LOCAL
)
1704 && is_specified_symbol (name
, globalize_specific_htab
))
1706 sym
->flags
&= ~ BSF_LOCAL
;
1707 sym
->flags
|= BSF_GLOBAL
;
1710 to
[dst_count
++] = sym
;
1715 struct addsym_node
*ptr
= add_sym_list
;
1717 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1721 if (ptr
->othersym
!= empty_name
)
1722 fatal (_("'before=%s' not found"), ptr
->othersym
);
1725 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1731 to
[dst_count
] = NULL
;
1736 /* Find the redefined name of symbol SOURCE. */
1739 lookup_sym_redefinition (const char *source
)
1741 struct redefine_node key_node
= {(char *) source
, NULL
};
1742 struct redefine_node
*redef_node
1743 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1745 return redef_node
== NULL
? source
: redef_node
->target
;
1748 /* Insert a node into symbol redefine hash tabel. */
1751 add_redefine_and_check (const char *cause
, const char *source
,
1754 struct redefine_node
*new_node
1755 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1757 new_node
->source
= strdup (source
);
1758 new_node
->target
= strdup (target
);
1760 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1761 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1764 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1765 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1768 /* Insert the NEW_NODE into hash table for quick search. */
1769 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1771 /* Insert the target string into the reverse hash table, this is needed for
1772 duplicated target string check. */
1773 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1777 /* Handle the --redefine-syms option. Read lines containing "old new"
1778 from the file, and add them to the symbol redefine list. */
1781 add_redefine_syms_file (const char *filename
)
1790 file
= fopen (filename
, "r");
1792 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1793 filename
, strerror (errno
));
1796 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1804 /* Collect the input symbol name. */
1805 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1813 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1821 /* Eat white space between the symbol names. */
1822 while (IS_WHITESPACE (c
))
1824 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1829 /* Collect the output symbol name. */
1831 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1839 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1847 /* Eat white space at end of line. */
1848 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1853 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1854 || c
== '\n' || c
== EOF
)
1857 /* Append the redefinition to the list. */
1859 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1870 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1872 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1873 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1876 /* Eat the rest of the line and finish it. */
1877 while (c
!= '\n' && c
!= EOF
)
1883 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1889 /* Copy unknown object file IBFD onto OBFD.
1890 Returns TRUE upon success, FALSE otherwise. */
1893 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1901 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1903 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1910 non_fatal (_("stat returns negative size for `%s'"),
1911 bfd_get_archive_filename (ibfd
));
1915 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1917 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1922 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1923 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1925 cbuf
= (char *) xmalloc (BUFSIZE
);
1927 while (ncopied
< size
)
1929 tocopy
= size
- ncopied
;
1930 if (tocopy
> BUFSIZE
)
1933 if (bfd_bread (cbuf
, (bfd_size_type
) tocopy
, ibfd
)
1934 != (bfd_size_type
) tocopy
)
1936 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1941 if (bfd_bwrite (cbuf
, (bfd_size_type
) tocopy
, obfd
)
1942 != (bfd_size_type
) tocopy
)
1944 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1952 /* We should at least to be able to read it back when copying an
1953 unknown object in an archive. */
1954 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1959 typedef struct objcopy_internal_note
1961 Elf_Internal_Note note
;
1962 unsigned long padded_namesz
;
1965 } objcopy_internal_note
;
1967 #define DEBUG_MERGE 0
1970 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
1972 #define merge_debug(format, ...)
1975 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
1978 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
1979 objcopy_internal_note
* pnote2
)
1981 if (pnote1
->end
< pnote2
->start
)
1982 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
1983 Really we should extract the alignment of the section
1984 covered by the notes. */
1985 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
1987 if (pnote2
->end
< pnote2
->start
)
1988 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
1990 if (pnote1
->end
< pnote2
->end
)
1993 if (pnote2
->end
< pnote1
->end
)
1999 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
2002 contained_by (objcopy_internal_note
* needle
,
2003 objcopy_internal_note
* haystack
)
2005 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
2009 is_open_note (objcopy_internal_note
* pnote
)
2011 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2015 is_func_note (objcopy_internal_note
* pnote
)
2017 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2021 is_deleted_note (objcopy_internal_note
* pnote
)
2023 return pnote
->note
.type
== 0;
2027 is_version_note (objcopy_internal_note
* pnote
)
2029 return (pnote
->note
.namesz
> 4
2030 && pnote
->note
.namedata
[0] == 'G'
2031 && pnote
->note
.namedata
[1] == 'A'
2032 && pnote
->note
.namedata
[2] == '$'
2033 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2037 is_64bit (bfd
* abfd
)
2039 /* Should never happen, but let's be paranoid. */
2040 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2043 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2046 /* This sorting function is used to get the notes into an order
2047 that makes merging easy. */
2050 compare_gnu_build_notes (const void * data1
, const void * data2
)
2052 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2053 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2055 /* Sort notes based upon the attribute they record. */
2056 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2057 pnote2
->note
.namedata
+ 3,
2058 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2059 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2063 if (pnote1
->end
< pnote2
->start
)
2065 if (pnote1
->start
> pnote2
->end
)
2068 /* Overlaps - we should merge the two ranges. */
2069 if (pnote1
->start
< pnote2
->start
)
2071 if (pnote1
->end
> pnote2
->end
)
2073 if (pnote1
->end
< pnote2
->end
)
2076 /* Put OPEN notes before function notes. */
2077 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2079 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2085 /* This sorting function is used to get the notes into an order
2086 that makes eliminating address ranges easier. */
2089 sort_gnu_build_notes (const void * data1
, const void * data2
)
2091 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2092 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2094 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2096 /* Move deleted notes to the end. */
2097 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2100 /* Move OPEN notes to the start. */
2101 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2104 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2107 return 1; /* 1: F 2: O */
2110 /* Sort by starting address. */
2111 if (pnote1
->start
< pnote2
->start
)
2113 if (pnote1
->start
> pnote2
->start
)
2116 /* Then by end address (bigger range first). */
2117 if (pnote1
->end
> pnote2
->end
)
2119 if (pnote1
->end
< pnote2
->end
)
2122 /* Then by attribute type. */
2123 if (pnote1
->note
.namesz
> 4
2124 && pnote2
->note
.namesz
> 4
2125 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2126 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2131 /* Merge the notes on SEC, removing redundant entries.
2132 Returns the new, smaller size of the section upon success. */
2134 static bfd_size_type
2135 merge_gnu_build_notes (bfd
* abfd
,
2138 bfd_byte
* contents
)
2140 objcopy_internal_note
* pnotes_end
;
2141 objcopy_internal_note
* pnotes
= NULL
;
2142 objcopy_internal_note
* pnote
;
2143 bfd_size_type remain
= size
;
2144 unsigned version_1_seen
= 0;
2145 unsigned version_2_seen
= 0;
2146 unsigned version_3_seen
= 0;
2147 const char * err
= NULL
;
2148 bfd_byte
* in
= contents
;
2149 unsigned long previous_func_start
= 0;
2150 unsigned long previous_open_start
= 0;
2151 unsigned long previous_func_end
= 0;
2152 unsigned long previous_open_end
= 0;
2155 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2161 /* If there are relocs associated with this section then we
2162 cannot safely merge it. */
2163 relpp
= (arelent
**) xmalloc (relsize
);
2164 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2169 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2170 bfd_get_filename (abfd
), bfd_section_name (sec
));
2175 /* Make a copy of the notes and convert to our internal format.
2176 Minimum size of a note is 12 bytes. Also locate the version
2177 notes and check them. */
2178 pnote
= pnotes
= (objcopy_internal_note
*)
2179 xcalloc ((size
/ 12), sizeof (* pnote
));
2180 while (remain
>= 12)
2184 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2185 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2186 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2187 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2189 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2191 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2195 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2196 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2198 err
= _("corrupt GNU build attribute note: wrong note type");
2202 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2204 err
= _("corrupt GNU build attribute note: note too big");
2208 if (pnote
->note
.namesz
< 2)
2210 err
= _("corrupt GNU build attribute note: name too small");
2214 pnote
->note
.namedata
= (char *)(in
+ 12);
2215 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2217 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2218 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2220 if (pnote
->note
.namesz
> 2
2221 && pnote
->note
.namedata
[0] == '$'
2222 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2223 && pnote
->note
.namedata
[2] == '1')
2225 else if (is_version_note (pnote
))
2227 if (pnote
->note
.namedata
[4] == '2')
2229 else if (pnote
->note
.namedata
[4] == '3')
2233 err
= _("corrupt GNU build attribute note: unsupported version");
2238 switch (pnote
->note
.descsz
)
2245 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2246 /* FIXME: For version 1 and 2 notes we should try to
2247 calculate the end address by finding a symbol whose
2248 value is START, and then adding in its size.
2250 For now though, since v1 and v2 was not intended to
2251 handle gaps, we chose an artificially large end
2257 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2258 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2262 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2263 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2267 err
= _("corrupt GNU build attribute note: bad description size");
2272 /* This can happen with PPC64LE binaries where empty notes are
2273 encoded as start = end + 4. */
2276 if (is_open_note (pnote
))
2279 previous_open_start
= start
;
2281 pnote
->start
= previous_open_start
;
2284 previous_open_end
= end
;
2286 pnote
->end
= previous_open_end
;
2291 previous_func_start
= start
;
2293 pnote
->start
= previous_func_start
;
2296 previous_func_end
= end
;
2298 pnote
->end
= previous_func_end
;
2301 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2303 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2312 /* Check that the notes are valid. */
2315 err
= _("corrupt GNU build attribute notes: excess data at end");
2319 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2322 err
= _("bad GNU build attribute notes: no known versions detected");
2325 /* This happens with glibc. No idea why. */
2326 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2327 bfd_get_filename (abfd
), bfd_section_name (sec
));
2332 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2333 || (version_1_seen
> 0 && version_3_seen
> 0)
2334 || (version_2_seen
> 0 && version_3_seen
> 0))
2336 err
= _("bad GNU build attribute notes: multiple different versions");
2340 /* We are now only supporting the merging v3+ notes
2341 - it makes things much simpler. */
2342 if (version_3_seen
== 0)
2344 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2348 merge_debug ("Merging section %s which contains %ld notes\n",
2349 sec
->name
, pnotes_end
- pnotes
);
2351 /* Sort the notes. */
2352 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2353 compare_gnu_build_notes
);
2356 merge_debug ("Results of initial sort:\n");
2357 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2358 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2359 (pnote
->note
.namedata
- (char *) contents
) - 12,
2360 pnote
->start
, pnote
->end
,
2362 pnote
->note
.namedata
[3],
2367 /* Now merge the notes. The rules are:
2368 1. If a note has a zero range, it can be eliminated.
2369 2. If two notes have the same namedata then:
2370 2a. If one note's range is fully covered by the other note
2371 then it can be deleted.
2372 2b. If one note's range partially overlaps or adjoins the
2373 other note then if they are both of the same type (open
2374 or func) then they can be merged and one deleted. If
2375 they are of different types then they cannot be merged. */
2376 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2378 /* Skip already deleted notes.
2379 FIXME: Can this happen ? We are scanning forwards and
2380 deleting backwards after all. */
2381 if (is_deleted_note (pnote
))
2384 /* Rule 1 - delete 0-range notes. */
2385 if (pnote
->start
== pnote
->end
)
2387 merge_debug ("Delete note at offset %#08lx - empty range\n",
2388 (pnote
->note
.namedata
- (char *) contents
) - 12);
2389 pnote
->note
.type
= 0;
2394 objcopy_internal_note
* back
;
2396 /* Rule 2: Check to see if there is an identical previous note. */
2397 for (iter
= 0, back
= pnote
- 1; back
>= pnotes
; back
--)
2399 if (is_deleted_note (back
))
2402 /* Our sorting function should have placed all identically
2403 attributed notes together, so if we see a note of a different
2404 attribute type stop searching. */
2405 if (back
->note
.namesz
!= pnote
->note
.namesz
2406 || memcmp (back
->note
.namedata
,
2407 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2410 if (back
->start
== pnote
->start
2411 && back
->end
== pnote
->end
)
2413 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2414 (pnote
->note
.namedata
- (char *) contents
) - 12,
2415 (back
->note
.namedata
- (char *) contents
) - 12);
2416 pnote
->note
.type
= 0;
2421 if (contained_by (pnote
, back
))
2423 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2424 (pnote
->note
.namedata
- (char *) contents
) - 12,
2425 (back
->note
.namedata
- (char *) contents
) - 12);
2426 pnote
->note
.type
= 0;
2431 /* This should not happen as we have sorted the
2432 notes with earlier starting addresses first. */
2433 if (contained_by (back
, pnote
))
2434 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2438 if (overlaps_or_adjoins (back
, pnote
)
2439 && is_func_note (back
) == is_func_note (pnote
))
2441 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2442 (pnote
->note
.namedata
- (char *) contents
) - 12,
2443 (back
->note
.namedata
- (char *) contents
) - 12);
2445 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2446 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2447 pnote
->note
.type
= 0;
2451 /* Don't scan too far back however. */
2454 /* FIXME: Not sure if this can ever be triggered. */
2455 merge_debug ("ITERATION LIMIT REACHED\n");
2460 if (! is_deleted_note (pnote
))
2461 merge_debug ("Unable to do anything with note at %#08lx\n",
2462 (pnote
->note
.namedata
- (char *) contents
) - 12);
2466 /* Resort the notes. */
2467 merge_debug ("Final sorting of notes\n");
2468 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2470 /* Reconstruct the ELF notes. */
2471 bfd_byte
* new_contents
;
2474 bfd_size_type new_size
;
2475 bfd_vma prev_start
= 0;
2476 bfd_vma prev_end
= 0;
2478 /* Not sure how, but the notes might grow in size.
2479 (eg see PR 1774507). Allow for this here. */
2480 new = new_contents
= xmalloc (size
* 2);
2481 for (pnote
= pnotes
, old
= contents
;
2485 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2487 if (! is_deleted_note (pnote
))
2489 /* Create the note, potentially using the
2490 address range of the previous note. */
2491 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2493 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2494 bfd_put_32 (abfd
, 0, new + 4);
2495 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2497 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2498 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2499 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2500 new += pnote
->padded_namesz
;
2504 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2505 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2506 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2508 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2509 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2510 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2511 new += pnote
->padded_namesz
;
2512 if (is_64bit (abfd
))
2514 bfd_put_64 (abfd
, pnote
->start
, new);
2515 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2520 bfd_put_32 (abfd
, pnote
->start
, new);
2521 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2525 prev_start
= pnote
->start
;
2526 prev_end
= pnote
->end
;
2534 merge_debug ("Results of merge:\n");
2535 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2536 if (! is_deleted_note (pnote
))
2537 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2538 (pnote
->note
.namedata
- (char *) contents
) - 12,
2539 pnote
->start
, pnote
->end
,
2541 pnote
->note
.namedata
[3],
2546 new_size
= new - new_contents
;
2547 if (new_size
< size
)
2549 memcpy (contents
, new_contents
, new_size
);
2552 free (new_contents
);
2557 bfd_set_error (bfd_error_bad_value
);
2558 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2567 check_new_section_flags (flagword flags
, bfd
* abfd
, const char * secname
)
2569 /* Only set the SEC_COFF_SHARED flag on COFF files.
2570 The same bit value is used by ELF targets to indicate
2571 compressed sections, and setting that flag here breaks
2573 if ((flags
& SEC_COFF_SHARED
)
2574 && bfd_get_flavour (abfd
) != bfd_target_coff_flavour
)
2576 non_fatal (_("%s[%s]: Note - dropping 'share' flag as output format is not COFF"),
2577 bfd_get_filename (abfd
), secname
);
2578 flags
&= ~ SEC_COFF_SHARED
;
2583 /* Copy object file IBFD onto OBFD.
2584 Returns TRUE upon success, FALSE otherwise. */
2587 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2591 asection
**osections
= NULL
;
2593 asection
*gnu_debuglink_section
= NULL
;
2594 bfd_size_type
*gaps
= NULL
;
2595 bfd_size_type max_gap
= 0;
2598 enum bfd_architecture iarch
;
2600 unsigned int num_sec
, i
;
2602 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2603 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2604 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2606 /* PR 17636: Call non-fatal so that we return to our parent who
2607 may need to tidy temporary files. */
2608 non_fatal (_("unable to change endianness of '%s'"),
2609 bfd_get_archive_filename (ibfd
));
2613 if (ibfd
->read_only
)
2615 non_fatal (_("unable to modify '%s' due to errors"),
2616 bfd_get_archive_filename (ibfd
));
2620 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2622 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2626 if (ibfd
->sections
== NULL
)
2628 non_fatal (_("error: the input file '%s' has no sections"),
2629 bfd_get_archive_filename (ibfd
));
2633 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2635 if ((do_debug_sections
& compress
) != 0
2636 && do_debug_sections
!= compress
)
2638 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
2639 bfd_get_archive_filename (ibfd
));
2643 if (do_elf_stt_common
)
2645 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2646 bfd_get_archive_filename (ibfd
));
2652 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2653 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2654 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2663 start
= bfd_get_start_address (ibfd
);
2664 start
+= change_start
;
2667 /* Neither the start address nor the flags
2668 need to be set for a core file. */
2669 if (bfd_get_format (obfd
) != bfd_core
)
2673 flags
= bfd_get_file_flags (ibfd
);
2674 flags
|= bfd_flags_to_set
;
2675 flags
&= ~bfd_flags_to_clear
;
2676 flags
&= bfd_applicable_file_flags (obfd
);
2678 if (strip_symbols
== STRIP_ALL
)
2679 flags
&= ~HAS_RELOC
;
2681 if (!bfd_set_start_address (obfd
, start
)
2682 || !bfd_set_file_flags (obfd
, flags
))
2684 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2689 /* Copy architecture of input file to output file. */
2690 iarch
= bfd_get_arch (ibfd
);
2691 imach
= bfd_get_mach (ibfd
);
2694 if (iarch
== bfd_arch_unknown
)
2696 iarch
= input_arch
->arch
;
2697 imach
= input_arch
->mach
;
2700 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2701 bfd_get_archive_filename (ibfd
));
2703 if (iarch
== bfd_arch_unknown
2704 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2705 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2707 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2711 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2712 && (ibfd
->target_defaulted
2713 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2715 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2716 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2717 bfd_get_archive_filename (ibfd
));
2719 non_fatal (_("Output file cannot represent architecture `%s'"),
2720 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2721 bfd_get_mach (ibfd
)));
2725 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2727 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2731 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2732 && bfd_pei_p (obfd
))
2734 /* Set up PE parameters. */
2735 pe_data_type
*pe
= pe_data (obfd
);
2737 /* Copy PE parameters before changing them. */
2738 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2739 && bfd_pei_p (ibfd
))
2740 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2742 if (pe_file_alignment
!= (bfd_vma
) -1)
2743 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2745 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2747 if (pe_heap_commit
!= (bfd_vma
) -1)
2748 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2750 if (pe_heap_reserve
!= (bfd_vma
) -1)
2751 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2753 if (pe_image_base
!= (bfd_vma
) -1)
2754 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2756 if (pe_section_alignment
!= (bfd_vma
) -1)
2757 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2759 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2761 if (pe_stack_commit
!= (bfd_vma
) -1)
2762 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2764 if (pe_stack_reserve
!= (bfd_vma
) -1)
2765 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2767 if (pe_subsystem
!= -1)
2768 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2770 if (pe_major_subsystem_version
!= -1)
2771 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2773 if (pe_minor_subsystem_version
!= -1)
2774 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2776 if (pe_file_alignment
> pe_section_alignment
)
2778 char file_alignment
[20], section_alignment
[20];
2780 sprintf_vma (file_alignment
, pe_file_alignment
);
2781 sprintf_vma (section_alignment
, pe_section_alignment
);
2782 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
2784 file_alignment
, section_alignment
);
2788 && bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2789 && bfd_pei_p (ibfd
))
2790 pe
->timestamp
= pe_data (ibfd
)->coff
.timestamp
;
2795 if (osympp
!= isympp
)
2801 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2804 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2808 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2809 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2812 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2815 /* PR 17512: file: d6323821
2816 If the symbol table could not be loaded do not pretend that we have
2817 any symbols. This trips us up later on when we load the relocs. */
2821 osympp
= isympp
= NULL
;
2824 /* BFD mandates that all output sections be created and sizes set before
2825 any output is done. Thus, we traverse all sections multiple times. */
2826 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2828 if (!extract_symbol
)
2829 setup_bfd_headers (ibfd
, obfd
);
2831 if (add_sections
!= NULL
)
2833 struct section_add
*padd
;
2834 struct section_list
*pset
;
2836 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2840 pset
= find_section_list (padd
->name
, false,
2841 SECTION_CONTEXT_SET_FLAGS
);
2844 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2845 flags
= check_new_section_flags (flags
, obfd
, padd
->name
);
2848 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2850 /* bfd_make_section_with_flags() does not return very helpful
2851 error codes, so check for the most likely user error first. */
2852 if (bfd_get_section_by_name (obfd
, padd
->name
))
2854 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2855 _("can't add section '%s'"), padd
->name
);
2860 /* We use LINKER_CREATED here so that the backend hooks
2861 will create any special section type information,
2862 instead of presuming we know what we're doing merely
2863 because we set the flags. */
2864 padd
->section
= bfd_make_section_with_flags
2865 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2866 if (padd
->section
== NULL
)
2868 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2869 _("can't create section `%s'"),
2875 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2877 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2881 pset
= find_section_list (padd
->name
, false,
2882 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2884 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2886 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2890 pset
= find_section_list (padd
->name
, false,
2891 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2894 padd
->section
->lma
= pset
->lma_val
;
2896 if (!bfd_set_section_alignment
2897 (padd
->section
, bfd_section_alignment (padd
->section
)))
2899 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2906 if (update_sections
!= NULL
)
2908 struct section_add
*pupdate
;
2910 for (pupdate
= update_sections
;
2912 pupdate
= pupdate
->next
)
2914 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2915 if (pupdate
->section
== NULL
)
2917 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2921 osec
= pupdate
->section
->output_section
;
2922 if (!bfd_set_section_size (osec
, pupdate
->size
))
2924 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2930 merged_note_section
* merged_note_sections
= NULL
;
2933 /* This palaver is necessary because we must set the output
2934 section size first, before its contents are ready. */
2935 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2937 if (! is_mergeable_note_section (ibfd
, osec
))
2940 /* If the section is going to be completly deleted then
2941 do not bother to merge it. */
2942 if (osec
->output_section
== NULL
)
2945 bfd_size_type size
= bfd_section_size (osec
);
2949 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2950 _("warning: note section is empty"));
2954 merged_note_section
* merged
= xmalloc (sizeof * merged
);
2955 merged
->contents
= NULL
;
2956 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
2958 bfd_nonfatal_message (NULL
, ibfd
, osec
,
2959 _("warning: could not load note section"));
2964 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
2967 /* FIXME: Once we have read the contents in, we must write
2968 them out again. So even if the mergeing has achieved
2969 nothing we still add this entry to the merge list. */
2971 if (size
!= merged
->size
2972 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
2974 bfd_nonfatal_message (NULL
, obfd
, osec
,
2975 _("warning: failed to set merged notes size"));
2976 free (merged
->contents
);
2981 /* Add section to list of merged sections. */
2983 merged
->next
= merged_note_sections
;
2984 merged_note_sections
= merged
;
2988 if (dump_sections
!= NULL
)
2990 struct section_add
* pdump
;
2992 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
2997 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
3000 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3001 _("can't dump section '%s' - it does not exist"),
3006 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
3008 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3009 _("can't dump section - it has no contents"));
3013 bfd_size_type size
= bfd_section_size (osec
);
3014 /* Note - we allow the dumping of zero-sized sections,
3015 creating an empty file. */
3017 f
= fopen (pdump
->filename
, FOPEN_WB
);
3020 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3021 _("could not open section dump file"));
3025 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3027 if (size
!= 0 && fwrite (contents
, 1, size
, f
) != size
)
3029 non_fatal (_("error writing section contents to %s (error: %s)"),
3038 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3039 _("could not retrieve section contents"));
3046 if (gnu_debuglink_filename
!= NULL
)
3048 /* PR 15125: Give a helpful warning message if
3049 the debuglink section already exists, and
3050 allow the rest of the copy to complete. */
3051 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3053 non_fatal (_("%s: debuglink section already exists"),
3054 bfd_get_filename (obfd
));
3055 gnu_debuglink_filename
= NULL
;
3059 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3060 (obfd
, gnu_debuglink_filename
);
3062 if (gnu_debuglink_section
== NULL
)
3064 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3065 _("cannot create debug link section `%s'"),
3066 gnu_debuglink_filename
);
3070 /* Special processing for PE format files. We
3071 have no way to distinguish PE from COFF here. */
3072 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3074 bfd_vma debuglink_vma
;
3075 asection
* highest_section
;
3077 /* The PE spec requires that all sections be adjacent and sorted
3078 in ascending order of VMA. It also specifies that debug
3079 sections should be last. This is despite the fact that debug
3080 sections are not loaded into memory and so in theory have no
3083 This means that the debuglink section must be given a non-zero
3084 VMA which makes it contiguous with other debug sections. So
3085 walk the current section list, find the section with the
3086 highest VMA and start the debuglink section after that one. */
3087 for (osec
= obfd
->sections
, highest_section
= NULL
;
3091 && (highest_section
== NULL
3092 || osec
->vma
> highest_section
->vma
))
3093 highest_section
= osec
;
3095 if (highest_section
)
3096 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3097 + highest_section
->size
,
3098 /* FIXME: We ought to be using
3099 COFF_PAGE_SIZE here or maybe
3100 bfd_section_alignment() (if it
3101 was set) but since this is for PE
3102 and we know the required alignment
3103 it is easier just to hard code it. */
3106 /* Umm, not sure what to do in this case. */
3107 debuglink_vma
= 0x1000;
3109 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3114 num_sec
= bfd_count_sections (obfd
);
3116 && (gap_fill_set
|| pad_to_set
))
3120 /* We must fill in gaps between the sections and/or we must pad
3121 the last section to a specified address. We do this by
3122 grabbing a list of the sections, sorting them by VMA, and
3123 increasing the section sizes as required to fill the gaps.
3124 We write out the gap contents below. */
3126 osections
= xmalloc (num_sec
* sizeof (*osections
));
3128 bfd_map_over_sections (obfd
, get_sections
, &set
);
3130 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3132 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3133 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3137 for (i
= 0; i
< num_sec
- 1; i
++)
3140 bfd_size_type size
; /* Octets. */
3141 bfd_vma gap_start
, gap_stop
; /* Octets. */
3142 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3143 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3145 flags
= bfd_section_flags (osections
[i
]);
3146 if ((flags
& SEC_HAS_CONTENTS
) == 0
3147 || (flags
& SEC_LOAD
) == 0)
3150 size
= bfd_section_size (osections
[i
]);
3151 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3152 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3153 if (gap_start
< gap_stop
)
3155 if (!bfd_set_section_size (osections
[i
],
3156 size
+ (gap_stop
- gap_start
)))
3158 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3159 _("Can't fill gap after section"));
3163 gaps
[i
] = gap_stop
- gap_start
;
3164 if (max_gap
< gap_stop
- gap_start
)
3165 max_gap
= gap_stop
- gap_start
;
3172 bfd_vma lma
; /* Octets. */
3173 bfd_size_type size
; /* Octets. */
3174 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3175 bfd_vma _pad_to
= pad_to
* opb
;
3177 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3178 size
= bfd_section_size (osections
[num_sec
- 1]);
3179 if (lma
+ size
< _pad_to
)
3181 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3183 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3184 _("can't add padding"));
3189 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3190 if (max_gap
< _pad_to
- (lma
+ size
))
3191 max_gap
= _pad_to
- (lma
+ size
);
3197 /* Symbol filtering must happen after the output sections
3198 have been created, but before their contents are set. */
3200 if (convert_debugging
)
3201 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, false);
3203 if ((obfd
->flags
& (EXEC_P
| DYNAMIC
)) != 0
3204 && (obfd
->flags
& HAS_RELOC
) == 0)
3206 if (bfd_keep_unused_section_symbols (obfd
) || keep_section_symbols
)
3208 /* Non-relocatable inputs may not have the unused section
3209 symbols. Mark all section symbols as used to generate
3212 for (asect
= obfd
->sections
; asect
!= NULL
; asect
= asect
->next
)
3214 asect
->symbol
->flags
|= BSF_SECTION_SYM_USED
;
3218 /* Non-relocatable inputs may have the unused section symbols.
3219 Mark all section symbols as unused to excluded them. */
3221 for (s
= 0; s
< symcount
; s
++)
3222 if ((isympp
[s
]->flags
& BSF_SECTION_SYM_USED
))
3223 isympp
[s
]->flags
&= ~BSF_SECTION_SYM_USED
;
3227 if (strip_symbols
== STRIP_DEBUG
3228 || strip_symbols
== STRIP_ALL
3229 || strip_symbols
== STRIP_UNNEEDED
3230 || strip_symbols
== STRIP_NONDEBUG
3231 || strip_symbols
== STRIP_DWO
3232 || strip_symbols
== STRIP_NONDWO
3233 || discard_locals
!= LOCALS_UNDEF
3235 || htab_elements (strip_specific_htab
) != 0
3236 || htab_elements (keep_specific_htab
) != 0
3237 || htab_elements (localize_specific_htab
) != 0
3238 || htab_elements (globalize_specific_htab
) != 0
3239 || htab_elements (keepglobal_specific_htab
) != 0
3240 || htab_elements (weaken_specific_htab
) != 0
3241 || htab_elements (redefine_specific_htab
) != 0
3242 || prefix_symbols_string
3245 || convert_debugging
3246 || change_leading_char
3247 || remove_leading_char
3248 || section_rename_list
3252 /* Mark symbols used in output relocations so that they
3253 are kept, even if they are local labels or static symbols.
3255 Note we iterate over the input sections examining their
3256 relocations since the relocations for the output sections
3257 haven't been set yet. mark_symbols_used_in_relocations will
3258 ignore input sections which have no corresponding output
3260 if (strip_symbols
!= STRIP_ALL
)
3262 bfd_set_error (bfd_error_no_error
);
3263 bfd_map_over_sections (ibfd
,
3264 mark_symbols_used_in_relocations
,
3266 if (bfd_get_error () != bfd_error_no_error
)
3273 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3274 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3277 if (convert_debugging
&& dhandle
!= NULL
)
3281 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3284 dhandle
= NULL
; /* Paranoia... */
3293 bfd_set_symtab (obfd
, osympp
, symcount
);
3295 /* This has to happen before section positions are set. */
3296 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3298 /* This has to happen after the symbol table has been set. */
3299 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3301 if (add_sections
!= NULL
)
3303 struct section_add
*padd
;
3305 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3307 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3310 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3316 if (update_sections
!= NULL
)
3318 struct section_add
*pupdate
;
3320 for (pupdate
= update_sections
;
3322 pupdate
= pupdate
->next
)
3324 osec
= pupdate
->section
->output_section
;
3325 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3328 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3334 if (merged_note_sections
!= NULL
)
3336 merged_note_section
* merged
= NULL
;
3338 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3340 if (! is_mergeable_note_section (obfd
, osec
))
3344 merged
= merged_note_sections
;
3346 /* It is likely that output sections are in the same order
3347 as the input sections, but do not assume that this is
3349 if (merged
->sec
->output_section
!= osec
)
3351 for (merged
= merged_note_sections
;
3353 merged
= merged
->next
)
3354 if (merged
->sec
->output_section
== osec
)
3359 bfd_nonfatal_message
3361 _("error: failed to locate merged notes"));
3366 if (merged
->contents
== NULL
)
3368 bfd_nonfatal_message
3370 _("error: failed to merge notes"));
3374 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3377 bfd_nonfatal_message
3379 _("error: failed to copy merged notes into output"));
3383 merged
= merged
->next
;
3386 /* Free the memory. */
3387 merged_note_section
* next
;
3388 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3390 next
= merged
->next
;
3391 free (merged
->contents
);
3395 else if (merge_notes
&& ! is_strip
)
3396 non_fatal (_("%s: Could not find any mergeable note sections"),
3397 bfd_get_filename (ibfd
));
3399 if (gnu_debuglink_filename
!= NULL
)
3401 if (! bfd_fill_in_gnu_debuglink_section
3402 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3404 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3405 _("cannot fill debug link section `%s'"),
3406 gnu_debuglink_filename
);
3415 /* Fill in the gaps. */
3418 buf
= (bfd_byte
*) xmalloc (max_gap
);
3419 memset (buf
, gap_fill
, max_gap
);
3421 for (i
= 0; i
< num_sec
; i
++)
3429 off
= bfd_section_size (osections
[i
]) - left
;
3440 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3443 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3459 /* Allow the BFD backend to copy any private data it understands
3460 from the input BFD to the output BFD. This is done last to
3461 permit the routine to look at the filtered symbol table, which is
3462 important for the ECOFF code at least. */
3463 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3465 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3466 _("error copying private BFD data"));
3470 /* Switch to the alternate machine code. We have to do this at the
3471 very end, because we only initialize the header when we create
3472 the first section. */
3473 if (use_alt_mach_code
!= 0)
3475 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3477 non_fatal (_("this target does not support %lu alternative machine codes"),
3479 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3481 non_fatal (_("treating that number as an absolute e_machine value instead"));
3482 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3485 non_fatal (_("ignoring the alternative value"));
3492 /* Read each archive element in turn from IBFD, copy the
3493 contents to temp file, and keep the temp file handle.
3494 If 'force_output_target' is TRUE then make sure that
3495 all elements in the new archive are of the type
3499 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3500 bool force_output_target
,
3501 const bfd_arch_info_type
*input_arch
)
3505 struct name_list
*next
;
3509 bfd
**ptr
= &obfd
->archive_head
;
3512 const char *filename
;
3514 /* PR 24281: It is not clear what should happen when copying a thin archive.
3515 One part is straight forward - if the output archive is in a different
3516 directory from the input archive then any relative paths in the library
3517 should be adjusted to the new location. But if any transformation
3518 options are active (eg strip, rename, add, etc) then the implication is
3519 that these should be applied to the files pointed to by the archive.
3520 But since objcopy is not destructive, this means that new files must be
3521 created, and there is no guidance for the names of the new files. (Plus
3522 this conflicts with one of the goals of thin libraries - only taking up
3523 a minimal amount of space in the file system).
3525 So for now we fail if an attempt is made to copy such libraries. */
3526 if (ibfd
->is_thin_archive
)
3529 bfd_set_error (bfd_error_invalid_operation
);
3530 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3531 _("sorry: copying thin archives is not currently supported"));
3535 /* Make a temp directory to hold the contents. */
3536 dir
= make_tempdir (bfd_get_filename (obfd
));
3538 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3541 if (strip_symbols
== STRIP_ALL
)
3542 obfd
->has_armap
= false;
3544 obfd
->has_armap
= ibfd
->has_armap
;
3545 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3548 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3552 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3554 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3557 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3558 goto cleanup_and_exit
;
3561 while (!status
&& this_element
!= NULL
)
3567 int stat_status
= 0;
3571 /* PR binutils/17533: Do not allow directory traversal
3572 outside of the current directory tree by archive members. */
3573 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3575 non_fatal (_("illegal pathname found in archive member: %s"),
3576 bfd_get_filename (this_element
));
3578 goto cleanup_and_exit
;
3581 /* Create an output file for this member. */
3582 output_name
= concat (dir
, "/",
3583 bfd_get_filename (this_element
), (char *) 0);
3585 /* If the file already exists, make another temp dir. */
3586 if (stat (output_name
, &buf
) >= 0)
3588 char * tmpdir
= make_tempdir (output_name
);
3593 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3596 goto cleanup_and_exit
;
3599 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3604 output_name
= concat (tmpdir
, "/",
3605 bfd_get_filename (this_element
), (char *) 0);
3610 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3612 if (stat_status
!= 0)
3613 non_fatal (_("internal stat error on %s"),
3614 bfd_get_filename (this_element
));
3617 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3618 l
->name
= output_name
;
3623 ok_object
= bfd_check_format (this_element
, bfd_object
);
3625 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3626 _("Unable to recognise the format of file"));
3628 /* PR binutils/3110: Cope with archives
3629 containing multiple target types. */
3630 if (force_output_target
|| !ok_object
)
3631 output_bfd
= bfd_openw (output_name
, output_target
);
3633 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3635 if (output_bfd
== NULL
)
3637 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3639 goto cleanup_and_exit
;
3644 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3646 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3647 /* Try again as an unknown object file. */
3649 else if (!bfd_close (output_bfd
))
3651 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3652 /* Error in new object file. Don't change archive. */
3659 del
= !copy_unknown_object (this_element
, output_bfd
);
3660 if (!bfd_close_all_done (output_bfd
))
3662 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3663 /* Error in new object file. Don't change archive. */
3670 unlink (output_name
);
3675 if (preserve_dates
&& stat_status
== 0)
3676 set_times (output_name
, &buf
);
3678 /* Open the newly output file and attach to our list. */
3679 output_bfd
= bfd_openr (output_name
, output_target
);
3681 l
->obfd
= output_bfd
;
3684 ptr
= &output_bfd
->archive_next
;
3686 last_element
= this_element
;
3688 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3690 bfd_close (last_element
);
3695 filename
= bfd_get_filename (obfd
);
3696 if (!bfd_close (obfd
))
3699 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3702 filename
= bfd_get_filename (ibfd
);
3703 if (!bfd_close (ibfd
))
3706 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3710 /* Delete all the files that we opened. */
3712 struct name_list
* next
;
3714 for (l
= list
; l
!= NULL
; l
= next
)
3716 if (l
->obfd
== NULL
)
3720 bfd_close (l
->obfd
);
3732 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
3734 /* This is only relevant to Coff targets. */
3735 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
3738 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
3739 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
3740 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
3744 /* The top-level control. */
3747 copy_file (const char *input_filename
, const char *output_filename
, int ofd
,
3748 struct stat
*in_stat
, const char *input_target
,
3749 const char *output_target
, const bfd_arch_info_type
*input_arch
)
3752 char **obj_matching
;
3753 char **core_matching
;
3754 off_t size
= get_file_size (input_filename
);
3759 non_fatal (_("error: the input file '%s' is empty"),
3765 /* To allow us to do "strip *" without dying on the first
3766 non-object file, failures are nonfatal. */
3767 ibfd
= bfd_openr (input_filename
, input_target
);
3768 if (ibfd
== NULL
|| bfd_stat (ibfd
, in_stat
) != 0)
3770 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3775 switch (do_debug_sections
)
3779 case compress_gnu_zlib
:
3780 case compress_gabi_zlib
:
3781 ibfd
->flags
|= BFD_COMPRESS
;
3782 /* Don't check if input is ELF here since this information is
3783 only available after bfd_check_format_matches is called. */
3784 if (do_debug_sections
!= compress_gnu_zlib
)
3785 ibfd
->flags
|= BFD_COMPRESS_GABI
;
3788 ibfd
->flags
|= BFD_DECOMPRESS
;
3794 switch (do_elf_stt_common
)
3796 case elf_stt_common
:
3797 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3800 case no_elf_stt_common
:
3801 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3807 if (bfd_check_format (ibfd
, bfd_archive
))
3809 bool force_output_target
;
3812 /* bfd_get_target does not return the correct value until
3813 bfd_check_format succeeds. */
3814 if (output_target
== NULL
)
3816 output_target
= bfd_get_target (ibfd
);
3817 force_output_target
= false;
3820 force_output_target
= true;
3823 obfd
= bfd_fdopenw (output_filename
, output_target
, ofd
);
3825 obfd
= bfd_openw (output_filename
, output_target
);
3830 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3835 if (gnu_debuglink_filename
!= NULL
)
3837 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3838 bfd_get_filename (ibfd
));
3839 gnu_debuglink_filename
= NULL
;
3842 /* This is a no-op on non-Coff targets. */
3843 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3845 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3847 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3852 /* bfd_get_target does not return the correct value until
3853 bfd_check_format succeeds. */
3854 if (output_target
== NULL
)
3855 output_target
= bfd_get_target (ibfd
);
3858 obfd
= bfd_fdopenw (output_filename
, output_target
, ofd
);
3860 obfd
= bfd_openw (output_filename
, output_target
);
3865 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3870 /* This is a no-op on non-Coff targets. */
3871 set_long_section_mode (obfd
, ibfd
, long_section_names
);
3873 if (! copy_object (ibfd
, obfd
, input_arch
))
3876 /* PR 17512: file: 0f15796a.
3877 If the file could not be copied it may not be in a writeable
3878 state. So use bfd_close_all_done to avoid the possibility of
3879 writing uninitialised data into the file. */
3880 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3883 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3887 if (!bfd_close (ibfd
))
3890 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3896 bfd_error_type obj_error
= bfd_get_error ();
3897 bfd_error_type core_error
;
3899 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3901 /* This probably can't happen.. */
3902 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3903 free (obj_matching
);
3907 core_error
= bfd_get_error ();
3908 /* Report the object error in preference to the core error. */
3909 if (obj_error
!= core_error
)
3910 bfd_set_error (obj_error
);
3912 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3914 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3916 list_matching_formats (obj_matching
);
3917 free (obj_matching
);
3919 if (core_error
== bfd_error_file_ambiguously_recognized
)
3921 list_matching_formats (core_matching
);
3922 free (core_matching
);
3929 /* Add a name to the section renaming list. */
3932 add_section_rename (const char * old_name
, const char * new_name
,
3935 section_rename
* srename
;
3937 /* Check for conflicts first. */
3938 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3939 if (strcmp (srename
->old_name
, old_name
) == 0)
3941 /* Silently ignore duplicate definitions. */
3942 if (strcmp (srename
->new_name
, new_name
) == 0
3943 && srename
->flags
== flags
)
3946 fatal (_("Multiple renames of section %s"), old_name
);
3949 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3951 srename
->old_name
= old_name
;
3952 srename
->new_name
= new_name
;
3953 srename
->flags
= flags
;
3954 srename
->next
= section_rename_list
;
3956 section_rename_list
= srename
;
3959 /* Check the section rename list for a new name of the input section
3960 called OLD_NAME. Returns the new name if one is found and sets
3961 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
3964 find_section_rename (const char *old_name
, flagword
*returned_flags
)
3966 const section_rename
*srename
;
3968 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3969 if (strcmp (srename
->old_name
, old_name
) == 0)
3971 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
3972 *returned_flags
= srename
->flags
;
3974 return srename
->new_name
;
3980 /* Once each of the sections is copied, we may still need to do some
3981 finalization work for private section headers. Do that here. */
3984 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
3986 /* Allow the BFD backend to copy any private data it understands
3987 from the input section to the output section. */
3988 if (! bfd_copy_private_header_data (ibfd
, obfd
))
3991 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3992 _("error in private header data"));
3996 /* All went well. */
4000 /* Create a section in OBFD with the same
4001 name and attributes as ISECTION in IBFD. */
4004 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4006 bfd
*obfd
= (bfd
*) obfdarg
;
4007 struct section_list
*p
;
4015 const char * new_name
;
4016 char *prefix
= NULL
;
4018 unsigned int alignment
;
4020 if (is_strip_section (ibfd
, isection
))
4023 /* Get the, possibly new, name of the output section. */
4024 name
= bfd_section_name (isection
);
4025 flags
= bfd_section_flags (isection
);
4026 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
4028 flags
&= bfd_applicable_section_flags (ibfd
);
4029 flags
&= bfd_applicable_section_flags (obfd
);
4031 new_name
= find_section_rename (name
, &flags
);
4032 if (new_name
!= name
)
4035 flags
= check_new_section_flags (flags
, obfd
, name
);
4038 /* Prefix sections. */
4039 if (prefix_alloc_sections_string
4040 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
4041 prefix
= prefix_alloc_sections_string
;
4042 else if (prefix_sections_string
)
4043 prefix
= prefix_sections_string
;
4049 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4055 make_nobits
= false;
4057 p
= find_section_list (bfd_section_name (isection
), false,
4058 SECTION_CONTEXT_SET_FLAGS
);
4061 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4062 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4064 else if (strip_symbols
== STRIP_NONDEBUG
4065 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4066 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4068 flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4069 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4073 /* Twiddle the input section flags so that it seems to
4074 elf.c:copy_private_bfd_data that section flags have not
4075 changed between input and output sections. This hack
4076 prevents wholesale rewriting of the program headers. */
4077 isection
->flags
&= ~(SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
);
4081 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4083 if (osection
== NULL
)
4085 err
= _("failed to create output section");
4090 elf_section_type (osection
) = SHT_NOBITS
;
4092 size
= bfd_section_size (isection
);
4093 size
= bfd_convert_section_size (ibfd
, isection
, obfd
, size
);
4095 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4096 else if (extract_symbol
)
4098 if (!bfd_set_section_size (osection
, size
))
4100 err
= _("failed to set size");
4104 vma
= bfd_section_vma (isection
);
4105 p
= find_section_list (bfd_section_name (isection
), false,
4106 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4109 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4115 vma
+= change_section_address
;
4117 if (!bfd_set_section_vma (osection
, vma
))
4119 err
= _("failed to set vma");
4123 lma
= isection
->lma
;
4124 p
= find_section_list (bfd_section_name (isection
), false,
4125 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4128 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4134 lma
+= change_section_address
;
4136 osection
->lma
= lma
;
4138 p
= find_section_list (bfd_section_name (isection
), false,
4139 SECTION_CONTEXT_SET_ALIGNMENT
);
4141 alignment
= p
->alignment
;
4143 alignment
= bfd_section_alignment (isection
);
4145 /* FIXME: This is probably not enough. If we change the LMA we
4146 may have to recompute the header for the file as well. */
4147 if (!bfd_set_section_alignment (osection
, alignment
))
4149 err
= _("failed to set alignment");
4153 /* Copy merge entity size. */
4154 osection
->entsize
= isection
->entsize
;
4156 /* Copy compress status. */
4157 osection
->compress_status
= isection
->compress_status
;
4159 /* This used to be mangle_section; we do here to avoid using
4160 bfd_get_section_by_name since some formats allow multiple
4161 sections with the same name. */
4162 isection
->output_section
= osection
;
4163 isection
->output_offset
= 0;
4165 if ((isection
->flags
& SEC_GROUP
) != 0)
4167 asymbol
*gsym
= group_signature (isection
);
4171 gsym
->flags
|= BSF_KEEP
;
4172 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4173 elf_group_id (isection
) = gsym
;
4177 /* Allow the BFD backend to copy any private data it understands
4178 from the input section to the output section. */
4179 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4181 err
= _("failed to copy private data");
4185 /* All went well. */
4190 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4193 /* Return TRUE if input section ISECTION should be skipped. */
4196 skip_section (bfd
*ibfd
, sec_ptr isection
, bool skip_copy
)
4202 /* If we have already failed earlier on,
4203 do not keep on generating complaints now. */
4210 if (is_strip_section (ibfd
, isection
))
4213 if (is_update_section (ibfd
, isection
))
4216 /* When merging a note section we skip the copying of the contents,
4217 but not the copying of the relocs associated with the contents. */
4218 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4221 flags
= bfd_section_flags (isection
);
4222 if ((flags
& SEC_GROUP
) != 0)
4225 osection
= isection
->output_section
;
4226 size
= bfd_section_size (isection
);
4228 if (size
== 0 || osection
== 0)
4234 /* Add section SECTION_PATTERN to the list of sections that will have their
4235 relocations removed. */
4238 handle_remove_relocations_option (const char *section_pattern
)
4240 find_section_list (section_pattern
, true, SECTION_CONTEXT_REMOVE_RELOCS
);
4243 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4244 otherwise return FALSE. If the user has requested that relocations be
4245 removed from a section that does not have relocations then this
4246 function will still return TRUE. */
4249 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4251 return (find_section_list (bfd_section_name (isection
), false,
4252 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4255 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4256 A special case is detected here, if the user asks to remove a relocation
4257 section (one starting with ".rela" or ".rel") then this removal must
4258 be done using a different technique in a relocatable object. */
4261 handle_remove_section_option (const char *section_pattern
)
4263 find_section_list (section_pattern
, true, SECTION_CONTEXT_REMOVE
);
4264 if (startswith (section_pattern
, ".rel"))
4266 section_pattern
+= 4;
4267 if (*section_pattern
== 'a')
4269 if (*section_pattern
)
4270 handle_remove_relocations_option (section_pattern
);
4272 sections_removed
= true;
4275 /* Copy relocations in input section ISECTION of IBFD to an output
4276 section with the same name in OBFDARG. If stripping then don't
4277 copy any relocation info. */
4280 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4282 bfd
*obfd
= (bfd
*) obfdarg
;
4288 if (skip_section (ibfd
, isection
, false))
4291 osection
= isection
->output_section
;
4293 /* Core files and DWO files do not need to be relocated. */
4294 if (bfd_get_format (obfd
) == bfd_core
4295 || strip_symbols
== STRIP_NONDWO
4296 || discard_relocations (ibfd
, isection
))
4300 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4304 /* Do not complain if the target does not support relocations. */
4305 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4310 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4318 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4319 osection
->flags
&= ~SEC_RELOC
;
4323 if (isection
->orelocation
!= NULL
)
4325 /* Some other function has already set up the output relocs
4326 for us, so scan those instead of the default relocs. */
4327 relcount
= isection
->reloc_count
;
4328 relpp
= isection
->orelocation
;
4332 relpp
= (arelent
**) xmalloc (relsize
);
4333 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4337 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4338 _("relocation count is negative"));
4344 if (strip_symbols
== STRIP_ALL
)
4346 /* Remove relocations which are not in
4347 keep_strip_specific_list. */
4348 arelent
**temp_relpp
;
4349 long temp_relcount
= 0;
4352 temp_relpp
= (arelent
**) xmalloc (relsize
);
4353 for (i
= 0; i
< relcount
; i
++)
4355 /* PR 17512: file: 9e907e0c. */
4356 if (relpp
[i
]->sym_ptr_ptr
4358 && * relpp
[i
]->sym_ptr_ptr
)
4359 if (is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4360 keep_specific_htab
))
4361 temp_relpp
[temp_relcount
++] = relpp
[i
];
4363 relcount
= temp_relcount
;
4364 if (relpp
!= isection
->orelocation
)
4369 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4372 osection
->flags
&= ~SEC_RELOC
;
4373 if (relpp
!= isection
->orelocation
)
4379 /* Copy the data of input section ISECTION of IBFD
4380 to an output section with the same name in OBFD. */
4383 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4385 bfd
*obfd
= (bfd
*) obfdarg
;
4386 struct section_list
*p
;
4390 if (skip_section (ibfd
, isection
, true))
4393 osection
= isection
->output_section
;
4394 /* The output SHF_COMPRESSED section size is different from input if
4395 ELF classes of input and output aren't the same. We can't use
4396 the output section size since --interleave will shrink the output
4397 section. Size will be updated if the section is converted. */
4398 size
= bfd_section_size (isection
);
4400 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4401 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4403 bfd_byte
*memhunk
= NULL
;
4405 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4406 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4410 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4417 /* We don't handle leftover bytes (too many possible behaviors,
4418 and we don't know what the user wants). The section length
4419 must be a multiple of the number of bytes to swap. */
4420 if ((size
% reverse_bytes
) == 0)
4425 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4426 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4428 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4431 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4432 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4436 /* User must pad the section up in order to do this. */
4437 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4438 bfd_section_name (isection
), reverse_bytes
);
4443 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4444 char *from
= (char *) memhunk
+ copy_byte
;
4445 char *to
= (char *) memhunk
;
4446 char *end
= (char *) memhunk
+ size
;
4449 /* If the section address is not exactly divisible by the interleave,
4450 then we must bias the from address. If the copy_byte is less than
4451 the bias, then we must skip forward one interleave, and increment
4453 int extra
= isection
->lma
% interleave
;
4455 if (copy_byte
< extra
)
4458 for (; from
< end
; from
+= interleave
)
4459 for (i
= 0; i
< copy_width
; i
++)
4461 if (&from
[i
] >= end
)
4466 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4467 osection
->lma
/= interleave
;
4468 if (copy_byte
< extra
)
4472 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4475 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4481 else if ((p
= find_section_list (bfd_section_name (isection
),
4482 false, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4483 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4485 void *memhunk
= xmalloc (size
);
4487 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4488 flag--they can just remove the section entirely and add it
4489 back again. However, we do permit them to turn on the
4490 SEC_HAS_CONTENTS flag, and take it to mean that the section
4491 contents should be zeroed out. */
4493 memset (memhunk
, 0, size
);
4494 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4497 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4505 /* Get all the sections. This is used when --gap-fill or --pad-to is
4509 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4511 asection
***secppp
= (asection
***) secppparg
;
4513 **secppp
= osection
;
4517 /* Sort sections by LMA. This is called via qsort, and is used when
4518 --gap-fill or --pad-to is used. We force non loadable or empty
4519 sections to the front, where they are easier to ignore. */
4522 compare_section_lma (const void *arg1
, const void *arg2
)
4524 const asection
*sec1
= *(const asection
**) arg1
;
4525 const asection
*sec2
= *(const asection
**) arg2
;
4526 flagword flags1
, flags2
;
4528 /* Sort non loadable sections to the front. */
4529 flags1
= sec1
->flags
;
4530 flags2
= sec2
->flags
;
4531 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4532 || (flags1
& SEC_LOAD
) == 0)
4534 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4535 && (flags2
& SEC_LOAD
) != 0)
4540 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4541 || (flags2
& SEC_LOAD
) == 0)
4545 /* Sort sections by LMA. */
4546 if (sec1
->lma
> sec2
->lma
)
4548 if (sec1
->lma
< sec2
->lma
)
4551 /* Sort sections with the same LMA by size. */
4552 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4554 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4557 if (sec1
->id
> sec2
->id
)
4559 if (sec1
->id
< sec2
->id
)
4564 /* Mark all the symbols which will be used in output relocations with
4565 the BSF_KEEP flag so that those symbols will not be stripped.
4567 Ignore relocations which will not appear in the output file. */
4570 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4572 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4577 /* Ignore an input section with no corresponding output section. */
4578 if (isection
->output_section
== NULL
)
4581 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4584 /* Do not complain if the target does not support relocations. */
4585 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4587 bfd_fatal (bfd_get_filename (ibfd
));
4593 relpp
= (arelent
**) xmalloc (relsize
);
4594 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4596 bfd_fatal (bfd_get_filename (ibfd
));
4598 /* Examine each symbol used in a relocation. If it's not one of the
4599 special bfd section symbols, then mark it with BSF_KEEP. */
4600 for (i
= 0; i
< relcount
; i
++)
4602 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4603 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4604 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4605 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4606 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4607 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4608 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4614 /* Write out debugging information. */
4617 write_debugging_info (bfd
*obfd
, void *dhandle
,
4618 long *symcountp ATTRIBUTE_UNUSED
,
4619 asymbol
***symppp ATTRIBUTE_UNUSED
)
4621 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4622 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4624 bfd_byte
*syms
, *strings
= NULL
;
4625 bfd_size_type symsize
, stringsize
;
4626 asection
*stabsec
, *stabstrsec
;
4629 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4634 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4635 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4636 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4638 || stabstrsec
== NULL
4639 || !bfd_set_section_size (stabsec
, symsize
)
4640 || !bfd_set_section_size (stabstrsec
, stringsize
)
4641 || !bfd_set_section_alignment (stabsec
, 2)
4642 || !bfd_set_section_alignment (stabstrsec
, 0))
4644 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4645 _("can't create debugging section"));
4650 /* We can get away with setting the section contents now because
4651 the next thing the caller is going to do is copy over the
4652 real sections. We may someday have to split the contents
4653 setting out of this function. */
4654 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4655 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4658 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4659 _("can't set debugging section contents"));
4667 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4668 _("don't know how to write debugging information for %s"),
4669 bfd_get_target (obfd
));
4673 /* If neither -D nor -U was specified explicitly,
4674 then use the configured default. */
4676 default_deterministic (void)
4678 if (deterministic
< 0)
4679 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4683 strip_main (int argc
, char *argv
[])
4685 char *input_target
= NULL
;
4686 char *output_target
= NULL
;
4687 bool show_version
= false;
4688 bool formats_info
= false;
4691 char *output_file
= NULL
;
4692 bool merge_notes_set
= false;
4694 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4695 strip_options
, (int *) 0)) != EOF
)
4700 input_target
= optarg
;
4703 output_target
= optarg
;
4706 input_target
= output_target
= optarg
;
4709 handle_remove_section_option (optarg
);
4711 case OPTION_KEEP_SECTION
:
4712 find_section_list (optarg
, true, SECTION_CONTEXT_KEEP
);
4714 case OPTION_REMOVE_RELOCS
:
4715 handle_remove_relocations_option (optarg
);
4718 strip_symbols
= STRIP_ALL
;
4722 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4723 strip_symbols
= STRIP_DEBUG
;
4725 case OPTION_STRIP_DWO
:
4726 strip_symbols
= STRIP_DWO
;
4728 case OPTION_STRIP_UNNEEDED
:
4729 strip_symbols
= STRIP_UNNEEDED
;
4732 add_specific_symbol (optarg
, keep_specific_htab
);
4736 merge_notes_set
= true;
4738 case OPTION_NO_MERGE_NOTES
:
4739 merge_notes
= false;
4740 merge_notes_set
= true;
4743 add_specific_symbol (optarg
, strip_specific_htab
);
4746 output_file
= optarg
;
4749 preserve_dates
= true;
4752 deterministic
= true;
4755 deterministic
= false;
4758 discard_locals
= LOCALS_ALL
;
4761 discard_locals
= LOCALS_START_L
;
4767 show_version
= true;
4769 case OPTION_FORMATS_INFO
:
4770 formats_info
= true;
4772 case OPTION_ONLY_KEEP_DEBUG
:
4773 strip_symbols
= STRIP_NONDEBUG
;
4775 case OPTION_KEEP_FILE_SYMBOLS
:
4776 keep_file_symbols
= 1;
4778 case OPTION_KEEP_SECTION_SYMBOLS
:
4779 keep_section_symbols
= true;
4782 /* We've been given a long option. */
4789 strip_usage (stdout
, 0);
4791 strip_usage (stderr
, 1);
4795 /* If the user has not expressly chosen to merge/not-merge ELF notes
4796 then enable the merging unless we are stripping debug or dwo info. */
4797 if (! merge_notes_set
4798 && (strip_symbols
== STRIP_UNDEF
4799 || strip_symbols
== STRIP_ALL
4800 || strip_symbols
== STRIP_UNNEEDED
4801 || strip_symbols
== STRIP_NONDEBUG
4802 || strip_symbols
== STRIP_NONDWO
))
4812 print_version ("strip");
4814 default_deterministic ();
4816 /* Default is to strip all symbols. */
4817 if (strip_symbols
== STRIP_UNDEF
4818 && discard_locals
== LOCALS_UNDEF
4819 && htab_elements (strip_specific_htab
) == 0)
4820 strip_symbols
= STRIP_ALL
;
4822 if (output_target
== NULL
)
4823 output_target
= input_target
;
4827 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4828 strip_usage (stderr
, 1);
4830 for (; i
< argc
; i
++)
4832 int hold_status
= status
;
4833 struct stat statbuf
;
4838 if (get_file_size (argv
[i
]) < 1)
4844 if (output_file
== NULL
4845 || filename_cmp (argv
[i
], output_file
) == 0)
4847 tmpname
= make_tempname (argv
[i
], &tmpfd
);
4849 copyfd
= dup (tmpfd
);
4852 tmpname
= output_file
;
4854 if (tmpname
== NULL
)
4856 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4857 _("could not create temporary file to hold stripped copy"));
4863 copy_file (argv
[i
], tmpname
, tmpfd
, &statbuf
, input_target
,
4864 output_target
, NULL
);
4867 const char *oname
= output_file
? output_file
: argv
[i
];
4868 status
= smart_rename (tmpname
, oname
, copyfd
,
4869 &statbuf
, preserve_dates
) != 0;
4871 status
= hold_status
;
4877 unlink_if_ordinary (tmpname
);
4879 if (output_file
!= tmpname
)
4886 /* Set up PE subsystem. */
4889 set_pe_subsystem (const char *s
)
4891 const char *version
, *subsystem
;
4901 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4902 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4903 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4904 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4905 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4906 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4907 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4908 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4909 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4910 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4916 /* Check for the presence of a version number. */
4917 version
= strchr (s
, ':');
4918 if (version
== NULL
)
4922 int len
= version
- s
;
4926 version
= copy
+ 1 + len
;
4927 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4929 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4931 non_fatal (_("%s: bad version in PE subsystem"), s
);
4934 /* Check for numeric subsystem. */
4935 value
= (short) strtol (subsystem
, ©
, 0);
4938 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4939 if (v
[i
].value
== value
)
4941 pe_subsystem
= value
;
4942 set_def
= v
[i
].set_def
;
4948 /* Search for subsystem by name. */
4949 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4950 if (strcmp (subsystem
, v
[i
].name
) == 0)
4952 pe_subsystem
= v
[i
].value
;
4953 set_def
= v
[i
].set_def
;
4961 fatal (_("unknown PE subsystem: %s"), s
);
4966 if (pe_file_alignment
== (bfd_vma
) -1)
4967 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4968 if (pe_section_alignment
== (bfd_vma
) -1)
4969 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
4973 free ((char *) subsystem
);
4976 /* Convert EFI target to PEI target. */
4979 convert_efi_target (char *efi
)
4985 if (strcmp (efi
+ 4, "ia32") == 0)
4987 /* Change ia32 to i386. */
4992 else if (strcmp (efi
+ 4, "x86_64") == 0)
4994 /* Change x86_64 to x86-64. */
4999 /* Allocate and return a pointer to a struct section_add, initializing the
5000 structure using ARG, a string in the format "sectionname=filename".
5001 The returned structure will have its next pointer set to NEXT. The
5002 OPTION field is the name of the command line option currently being
5003 parsed, and is only used if an error needs to be reported. */
5005 static struct section_add
*
5006 init_section_add (const char *arg
,
5007 struct section_add
*next
,
5010 struct section_add
*pa
;
5013 s
= strchr (arg
, '=');
5015 fatal (_("bad format for %s"), option
);
5017 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
5018 pa
->name
= xstrndup (arg
, s
- arg
);
5019 pa
->filename
= s
+ 1;
5021 pa
->contents
= NULL
;
5027 /* Load the file specified in PA, allocating memory to hold the file
5028 contents, and store a pointer to the allocated memory in the contents
5029 field of PA. The size field of PA is also updated. All errors call
5033 section_add_load_file (struct section_add
*pa
)
5038 /* We don't use get_file_size so that we can do
5039 --add-section .note.GNU_stack=/dev/null
5040 get_file_size doesn't work on /dev/null. */
5042 f
= fopen (pa
->filename
, FOPEN_RB
);
5044 fatal (_("cannot open: %s: %s"),
5045 pa
->filename
, strerror (errno
));
5049 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5057 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5060 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5062 fatal (_("%s: fread failed"), pa
->filename
);
5073 copy_main (int argc
, char *argv
[])
5075 char *input_filename
= NULL
;
5076 char *output_filename
= NULL
;
5078 char *input_target
= NULL
;
5079 char *output_target
= NULL
;
5080 bool show_version
= false;
5081 bool change_warn
= true;
5082 bool formats_info
= false;
5083 bool use_globalize
= false;
5084 bool use_keep_global
= false;
5088 struct stat statbuf
;
5089 const bfd_arch_info_type
*input_arch
= NULL
;
5091 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5092 copy_options
, (int *) 0)) != EOF
)
5097 copy_byte
= atoi (optarg
);
5099 fatal (_("byte number must be non-negative"));
5103 input_arch
= bfd_scan_arch (optarg
);
5104 if (input_arch
== NULL
)
5105 fatal (_("architecture %s unknown"), optarg
);
5111 interleave
= atoi (optarg
);
5113 fatal (_("interleave must be positive"));
5119 case OPTION_INTERLEAVE_WIDTH
:
5120 copy_width
= atoi (optarg
);
5122 fatal(_("interleave width must be positive"));
5126 case 's': /* "source" - 'I' is preferred */
5127 input_target
= optarg
;
5131 case 'd': /* "destination" - 'O' is preferred */
5132 output_target
= optarg
;
5136 input_target
= output_target
= optarg
;
5140 find_section_list (optarg
, true, SECTION_CONTEXT_COPY
);
5141 sections_copied
= true;
5145 handle_remove_section_option (optarg
);
5148 case OPTION_KEEP_SECTION
:
5149 find_section_list (optarg
, true, SECTION_CONTEXT_KEEP
);
5152 case OPTION_REMOVE_RELOCS
:
5153 handle_remove_relocations_option (optarg
);
5157 strip_symbols
= STRIP_ALL
;
5161 strip_symbols
= STRIP_DEBUG
;
5164 case OPTION_STRIP_DWO
:
5165 strip_symbols
= STRIP_DWO
;
5168 case OPTION_STRIP_UNNEEDED
:
5169 strip_symbols
= STRIP_UNNEEDED
;
5172 case OPTION_ONLY_KEEP_DEBUG
:
5173 strip_symbols
= STRIP_NONDEBUG
;
5176 case OPTION_KEEP_FILE_SYMBOLS
:
5177 keep_file_symbols
= 1;
5180 case OPTION_ADD_GNU_DEBUGLINK
:
5181 long_section_names
= ENABLE
;
5182 gnu_debuglink_filename
= optarg
;
5186 add_specific_symbol (optarg
, keep_specific_htab
);
5192 case OPTION_NO_MERGE_NOTES
:
5193 merge_notes
= false;
5197 add_specific_symbol (optarg
, strip_specific_htab
);
5200 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5201 add_specific_symbol (optarg
, strip_unneeded_htab
);
5205 add_specific_symbol (optarg
, localize_specific_htab
);
5208 case OPTION_GLOBALIZE_SYMBOL
:
5209 use_globalize
= true;
5210 add_specific_symbol (optarg
, globalize_specific_htab
);
5214 use_keep_global
= true;
5215 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5219 add_specific_symbol (optarg
, weaken_specific_htab
);
5223 preserve_dates
= true;
5227 deterministic
= true;
5231 deterministic
= false;
5239 discard_locals
= LOCALS_ALL
;
5243 discard_locals
= LOCALS_START_L
;
5251 show_version
= true;
5254 case OPTION_FORMATS_INFO
:
5255 formats_info
= true;
5262 case OPTION_ADD_SECTION
:
5263 add_sections
= init_section_add (optarg
, add_sections
,
5265 section_add_load_file (add_sections
);
5268 case OPTION_UPDATE_SECTION
:
5269 update_sections
= init_section_add (optarg
, update_sections
,
5270 "--update-section");
5271 section_add_load_file (update_sections
);
5274 case OPTION_DUMP_SECTION
:
5275 dump_sections
= init_section_add (optarg
, dump_sections
,
5279 case OPTION_ADD_SYMBOL
:
5282 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5284 newsym
->next
= NULL
;
5285 s
= strchr (optarg
, '=');
5287 fatal (_("bad format for %s"), "--add-symbol");
5288 t
= strchr (s
+ 1, ':');
5290 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5293 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5294 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5298 newsym
->section
= NULL
;
5299 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5303 t
= strchr (t
+ 1, ',');
5304 newsym
->othersym
= NULL
;
5306 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5308 newsym
->flags
= BSF_GLOBAL
;
5310 /* Keep 'othersym' symbols at the front of the list. */
5311 if (newsym
->othersym
)
5313 newsym
->next
= add_sym_list
;
5315 add_sym_tail
= &newsym
->next
;
5316 add_sym_list
= newsym
;
5320 *add_sym_tail
= newsym
;
5321 add_sym_tail
= &newsym
->next
;
5327 case OPTION_CHANGE_START
:
5328 change_start
= parse_vma (optarg
, "--change-start");
5331 case OPTION_CHANGE_SECTION_ADDRESS
:
5332 case OPTION_CHANGE_SECTION_LMA
:
5333 case OPTION_CHANGE_SECTION_VMA
:
5335 struct section_list
* p
;
5336 unsigned int context
= 0;
5340 char *option
= NULL
;
5345 case OPTION_CHANGE_SECTION_ADDRESS
:
5346 option
= "--change-section-address";
5347 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5349 case OPTION_CHANGE_SECTION_LMA
:
5350 option
= "--change-section-lma";
5351 context
= SECTION_CONTEXT_ALTER_LMA
;
5353 case OPTION_CHANGE_SECTION_VMA
:
5354 option
= "--change-section-vma";
5355 context
= SECTION_CONTEXT_ALTER_VMA
;
5359 s
= strchr (optarg
, '=');
5362 s
= strchr (optarg
, '+');
5365 s
= strchr (optarg
, '-');
5367 fatal (_("bad format for %s"), option
);
5372 /* Correct the context. */
5375 case OPTION_CHANGE_SECTION_ADDRESS
:
5376 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5378 case OPTION_CHANGE_SECTION_LMA
:
5379 context
= SECTION_CONTEXT_SET_LMA
;
5381 case OPTION_CHANGE_SECTION_VMA
:
5382 context
= SECTION_CONTEXT_SET_VMA
;
5388 name
= (char *) xmalloc (len
+ 1);
5389 strncpy (name
, optarg
, len
);
5392 p
= find_section_list (name
, true, context
);
5394 val
= parse_vma (s
+ 1, option
);
5400 case OPTION_CHANGE_SECTION_ADDRESS
:
5404 case OPTION_CHANGE_SECTION_LMA
:
5408 case OPTION_CHANGE_SECTION_VMA
:
5415 case OPTION_CHANGE_ADDRESSES
:
5416 change_section_address
= parse_vma (optarg
, "--change-addresses");
5417 change_start
= change_section_address
;
5420 case OPTION_CHANGE_WARNINGS
:
5424 case OPTION_CHANGE_LEADING_CHAR
:
5425 change_leading_char
= true;
5428 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5431 if (strcasecmp (optarg
, "none") == 0)
5432 do_debug_sections
= decompress
;
5433 else if (strcasecmp (optarg
, "zlib") == 0)
5434 do_debug_sections
= compress_zlib
;
5435 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5436 do_debug_sections
= compress_gnu_zlib
;
5437 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5438 do_debug_sections
= compress_gabi_zlib
;
5440 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5444 do_debug_sections
= compress
;
5447 case OPTION_DEBUGGING
:
5448 convert_debugging
= true;
5451 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5452 do_debug_sections
= decompress
;
5455 case OPTION_ELF_STT_COMMON
:
5456 if (strcasecmp (optarg
, "yes") == 0)
5457 do_elf_stt_common
= elf_stt_common
;
5458 else if (strcasecmp (optarg
, "no") == 0)
5459 do_elf_stt_common
= no_elf_stt_common
;
5461 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5465 case OPTION_GAP_FILL
:
5467 bfd_vma gap_fill_vma
;
5469 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5470 gap_fill
= (bfd_byte
) gap_fill_vma
;
5471 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5475 sprintf_vma (buff
, gap_fill_vma
);
5477 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
5480 gap_fill_set
= true;
5484 case OPTION_NO_CHANGE_WARNINGS
:
5485 change_warn
= false;
5489 pad_to
= parse_vma (optarg
, "--pad-to");
5493 case OPTION_REMOVE_LEADING_CHAR
:
5494 remove_leading_char
= true;
5497 case OPTION_REDEFINE_SYM
:
5499 /* Insert this redefinition onto redefine_specific_htab. */
5503 const char *nextarg
;
5504 char *source
, *target
;
5506 s
= strchr (optarg
, '=');
5508 fatal (_("bad format for %s"), "--redefine-sym");
5511 source
= (char *) xmalloc (len
+ 1);
5512 strncpy (source
, optarg
, len
);
5516 len
= strlen (nextarg
);
5517 target
= (char *) xmalloc (len
+ 1);
5518 strcpy (target
, nextarg
);
5520 add_redefine_and_check ("--redefine-sym", source
, target
);
5527 case OPTION_REDEFINE_SYMS
:
5528 add_redefine_syms_file (optarg
);
5531 case OPTION_SET_SECTION_FLAGS
:
5533 struct section_list
*p
;
5538 s
= strchr (optarg
, '=');
5540 fatal (_("bad format for %s"), "--set-section-flags");
5543 name
= (char *) xmalloc (len
+ 1);
5544 strncpy (name
, optarg
, len
);
5547 p
= find_section_list (name
, true, SECTION_CONTEXT_SET_FLAGS
);
5549 p
->flags
= parse_flags (s
+ 1);
5553 case OPTION_SET_SECTION_ALIGNMENT
:
5555 struct section_list
*p
;
5561 s
= strchr (optarg
, '=');
5563 fatal (_("bad format for --set-section-alignment: argument needed"));
5565 align
= atoi (s
+ 1);
5567 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5569 /* Convert integer alignment into a power-of-two alignment. */
5571 while ((align
& 1) == 0)
5578 /* Number has more than on 1, i.e. wasn't a power of 2. */
5579 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5581 /* Add the alignment setting to the section list. */
5583 name
= (char *) xmalloc (len
+ 1);
5584 strncpy (name
, optarg
, len
);
5587 p
= find_section_list (name
, true, SECTION_CONTEXT_SET_ALIGNMENT
);
5589 p
->alignment
= palign
;
5593 case OPTION_RENAME_SECTION
:
5596 const char *eq
, *fl
;
5601 eq
= strchr (optarg
, '=');
5603 fatal (_("bad format for %s"), "--rename-section");
5607 fatal (_("bad format for %s"), "--rename-section");
5609 old_name
= (char *) xmalloc (len
+ 1);
5610 strncpy (old_name
, optarg
, len
);
5614 fl
= strchr (eq
, ',');
5617 flags
= parse_flags (fl
+ 1);
5627 fatal (_("bad format for %s"), "--rename-section");
5629 new_name
= (char *) xmalloc (len
+ 1);
5630 strncpy (new_name
, eq
, len
);
5633 add_section_rename (old_name
, new_name
, flags
);
5637 case OPTION_SET_START
:
5638 set_start
= parse_vma (optarg
, "--set-start");
5639 set_start_set
= true;
5642 case OPTION_SREC_LEN
:
5643 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5646 case OPTION_SREC_FORCES3
:
5647 _bfd_srec_forceS3
= true;
5650 case OPTION_STRIP_SYMBOLS
:
5651 add_specific_symbols (optarg
, strip_specific_htab
,
5652 &strip_specific_buffer
);
5655 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5656 add_specific_symbols (optarg
, strip_unneeded_htab
,
5657 &strip_unneeded_buffer
);
5660 case OPTION_KEEP_SYMBOLS
:
5661 add_specific_symbols (optarg
, keep_specific_htab
,
5662 &keep_specific_buffer
);
5665 case OPTION_KEEP_SECTION_SYMBOLS
:
5666 keep_section_symbols
= true;
5669 case OPTION_LOCALIZE_HIDDEN
:
5670 localize_hidden
= true;
5673 case OPTION_LOCALIZE_SYMBOLS
:
5674 add_specific_symbols (optarg
, localize_specific_htab
,
5675 &localize_specific_buffer
);
5678 case OPTION_LONG_SECTION_NAMES
:
5679 if (!strcmp ("enable", optarg
))
5680 long_section_names
= ENABLE
;
5681 else if (!strcmp ("disable", optarg
))
5682 long_section_names
= DISABLE
;
5683 else if (!strcmp ("keep", optarg
))
5684 long_section_names
= KEEP
;
5686 fatal (_("unknown long section names option '%s'"), optarg
);
5689 case OPTION_GLOBALIZE_SYMBOLS
:
5690 use_globalize
= true;
5691 add_specific_symbols (optarg
, globalize_specific_htab
,
5692 &globalize_specific_buffer
);
5695 case OPTION_KEEPGLOBAL_SYMBOLS
:
5696 use_keep_global
= true;
5697 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5698 &keepglobal_specific_buffer
);
5701 case OPTION_WEAKEN_SYMBOLS
:
5702 add_specific_symbols (optarg
, weaken_specific_htab
,
5703 &weaken_specific_buffer
);
5706 case OPTION_ALT_MACH_CODE
:
5707 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5708 if (use_alt_mach_code
== 0)
5709 fatal (_("unable to parse alternative machine code"));
5712 case OPTION_PREFIX_SYMBOLS
:
5713 prefix_symbols_string
= optarg
;
5716 case OPTION_PREFIX_SECTIONS
:
5717 prefix_sections_string
= optarg
;
5720 case OPTION_PREFIX_ALLOC_SECTIONS
:
5721 prefix_alloc_sections_string
= optarg
;
5724 case OPTION_READONLY_TEXT
:
5725 bfd_flags_to_set
|= WP_TEXT
;
5726 bfd_flags_to_clear
&= ~WP_TEXT
;
5729 case OPTION_WRITABLE_TEXT
:
5730 bfd_flags_to_clear
|= WP_TEXT
;
5731 bfd_flags_to_set
&= ~WP_TEXT
;
5735 bfd_flags_to_set
|= D_PAGED
;
5736 bfd_flags_to_clear
&= ~D_PAGED
;
5740 bfd_flags_to_clear
|= D_PAGED
;
5741 bfd_flags_to_set
&= ~D_PAGED
;
5744 case OPTION_EXTRACT_DWO
:
5745 strip_symbols
= STRIP_NONDWO
;
5748 case OPTION_EXTRACT_SYMBOL
:
5749 extract_symbol
= true;
5752 case OPTION_REVERSE_BYTES
:
5754 int prev
= reverse_bytes
;
5756 reverse_bytes
= atoi (optarg
);
5757 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5758 fatal (_("number of bytes to reverse must be positive and even"));
5760 if (prev
&& prev
!= reverse_bytes
)
5761 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5766 case OPTION_FILE_ALIGNMENT
:
5767 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5773 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5775 || (*end
!= '.' && *end
!= '\0'))
5776 non_fatal (_("%s: invalid reserve value for --heap"),
5778 else if (*end
!= '\0')
5780 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5782 non_fatal (_("%s: invalid commit value for --heap"),
5788 case OPTION_IMAGE_BASE
:
5789 pe_image_base
= parse_vma (optarg
, "--image-base");
5792 case OPTION_PE_SECTION_ALIGNMENT
:
5793 pe_section_alignment
= parse_vma (optarg
,
5794 "--section-alignment");
5797 case OPTION_SUBSYSTEM
:
5798 set_pe_subsystem (optarg
);
5804 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5806 || (*end
!= '.' && *end
!= '\0'))
5807 non_fatal (_("%s: invalid reserve value for --stack"),
5809 else if (*end
!= '\0')
5811 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5813 non_fatal (_("%s: invalid commit value for --stack"),
5819 case OPTION_VERILOG_DATA_WIDTH
:
5820 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5821 if (VerilogDataWidth
< 1)
5822 fatal (_("verilog data width must be at least 1 byte"));
5826 /* We've been given a long option. */
5831 copy_usage (stdout
, 0);
5834 copy_usage (stderr
, 1);
5838 if (use_globalize
&& use_keep_global
)
5839 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5848 print_version ("objcopy");
5850 if (interleave
&& copy_byte
== -1)
5851 fatal (_("interleave start byte must be set with --byte"));
5853 if (copy_byte
>= interleave
)
5854 fatal (_("byte number must be less than interleave"));
5856 if (copy_width
> interleave
- copy_byte
)
5857 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5859 if (optind
== argc
|| optind
+ 2 < argc
)
5860 copy_usage (stderr
, 1);
5862 input_filename
= argv
[optind
];
5863 if (optind
+ 1 < argc
)
5864 output_filename
= argv
[optind
+ 1];
5866 default_deterministic ();
5868 /* Default is to strip no symbols. */
5869 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5870 strip_symbols
= STRIP_NONE
;
5872 if (output_target
== NULL
)
5873 output_target
= input_target
;
5875 /* Convert input EFI target to PEI target. */
5876 if (input_target
!= NULL
5877 && startswith (input_target
, "efi-"))
5881 efi
= xstrdup (output_target
+ 4);
5882 if (startswith (efi
, "bsdrv-")
5883 || startswith (efi
, "rtdrv-"))
5885 else if (!startswith (efi
, "app-"))
5886 fatal (_("unknown input EFI target: %s"), input_target
);
5889 convert_efi_target (efi
);
5892 /* Convert output EFI target to PEI target. */
5893 if (output_target
!= NULL
5894 && startswith (output_target
, "efi-"))
5898 efi
= xstrdup (output_target
+ 4);
5899 if (startswith (efi
, "app-"))
5901 if (pe_subsystem
== -1)
5902 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5904 else if (startswith (efi
, "bsdrv-"))
5906 if (pe_subsystem
== -1)
5907 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5910 else if (startswith (efi
, "rtdrv-"))
5912 if (pe_subsystem
== -1)
5913 pe_subsystem
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5917 fatal (_("unknown output EFI target: %s"), output_target
);
5919 if (pe_file_alignment
== (bfd_vma
) -1)
5920 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5921 if (pe_section_alignment
== (bfd_vma
) -1)
5922 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5924 output_target
= efi
;
5925 convert_efi_target (efi
);
5928 /* If there is no destination file, or the source and destination files
5929 are the same, then create a temp and copy the result into the input. */
5931 if (output_filename
== NULL
5932 || filename_cmp (input_filename
, output_filename
) == 0)
5934 tmpname
= make_tempname (input_filename
, &tmpfd
);
5936 copyfd
= dup (tmpfd
);
5939 tmpname
= output_filename
;
5941 if (tmpname
== NULL
)
5943 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5944 input_filename
, strerror (errno
));
5947 copy_file (input_filename
, tmpname
, tmpfd
, &statbuf
, input_target
,
5948 output_target
, input_arch
);
5951 const char *oname
= output_filename
? output_filename
: input_filename
;
5952 status
= smart_rename (tmpname
, oname
, copyfd
,
5953 &statbuf
, preserve_dates
) != 0;
5959 unlink_if_ordinary (tmpname
);
5962 if (tmpname
!= output_filename
)
5967 struct section_list
*p
;
5969 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
5973 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
5977 sprintf_vma (buff
, p
->vma_val
);
5979 /* xgettext:c-format */
5980 non_fatal (_("%s %s%c0x%s never used"),
5981 "--change-section-vma",
5983 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
5987 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
5991 sprintf_vma (buff
, p
->lma_val
);
5993 /* xgettext:c-format */
5994 non_fatal (_("%s %s%c0x%s never used"),
5995 "--change-section-lma",
5997 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
6004 free (strip_specific_buffer
);
6005 free (strip_unneeded_buffer
);
6006 free (keep_specific_buffer
);
6007 free (localize_specific_buffer
);
6008 free (globalize_specific_buffer
);
6009 free (keepglobal_specific_buffer
);
6010 free (weaken_specific_buffer
);
6016 main (int argc
, char *argv
[])
6018 #ifdef HAVE_LC_MESSAGES
6019 setlocale (LC_MESSAGES
, "");
6021 setlocale (LC_CTYPE
, "");
6022 bindtextdomain (PACKAGE
, LOCALEDIR
);
6023 textdomain (PACKAGE
);
6025 program_name
= argv
[0];
6026 xmalloc_set_program_name (program_name
);
6028 START_PROGRESS (program_name
, 0);
6030 expandargv (&argc
, &argv
);
6032 strip_symbols
= STRIP_UNDEF
;
6033 discard_locals
= LOCALS_UNDEF
;
6035 if (bfd_init () != BFD_INIT_MAGIC
)
6036 fatal (_("fatal error: libbfd ABI mismatch"));
6037 set_default_bfd_target ();
6041 int i
= strlen (program_name
);
6042 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6043 /* Drop the .exe suffix, if any. */
6044 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6047 program_name
[i
] = '\0';
6050 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6053 create_symbol_htabs ();
6056 bfd_set_error_program_name (argv
[0]);
6059 strip_main (argc
, argv
);
6061 copy_main (argc
, argv
);
6063 END_PROGRESS (program_name
);