1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2023 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
24 #include "libiberty.h"
27 #include "filenames.h"
30 #include "coff/internal.h"
32 #include "safe-ctype.h"
34 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
35 header in generic PE code. */
36 #include "coff/i386.h"
39 static bfd_vma pe_file_alignment
= (bfd_vma
) -1;
40 static bfd_vma pe_heap_commit
= (bfd_vma
) -1;
41 static bfd_vma pe_heap_reserve
= (bfd_vma
) -1;
42 static bfd_vma pe_image_base
= (bfd_vma
) -1;
43 static bfd_vma pe_section_alignment
= (bfd_vma
) -1;
44 static bfd_vma pe_stack_commit
= (bfd_vma
) -1;
45 static bfd_vma pe_stack_reserve
= (bfd_vma
) -1;
46 static short pe_subsystem
= -1;
47 static short pe_major_subsystem_version
= -1;
48 static short pe_minor_subsystem_version
= -1;
50 struct is_specified_symbol_predicate_data
56 /* A node includes symbol name mapping to support redefine_sym. */
65 struct addsym_node
*next
;
70 const char * othersym
;
73 typedef struct section_rename
75 const char * old_name
;
76 const char * new_name
;
78 struct section_rename
* next
;
82 /* List of sections to be renamed. */
83 static section_rename
*section_rename_list
;
85 static asymbol
**isympp
= NULL
; /* Input symbols. */
86 static asymbol
**osympp
= NULL
; /* Output symbols that survive stripping. */
88 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
89 static int copy_byte
= -1;
90 static int interleave
= 0; /* Initialised to 4 in copy_main(). */
91 static int copy_width
= 1;
93 static bool keep_section_symbols
= false ;/* True if section symbols should be retained. */
94 static bool verbose
; /* Print file and target names. */
95 static bool preserve_dates
; /* Preserve input file timestamp. */
96 static int deterministic
= -1; /* Enable deterministic archives. */
97 static int status
= 0; /* Exit status. */
99 static bool merge_notes
= false; /* Merge note sections. */
101 typedef struct merged_note_section
103 asection
* sec
; /* The section that is being merged. */
104 bfd_byte
* contents
;/* New contents of the section. */
105 bfd_size_type size
; /* New size of the section. */
106 struct merged_note_section
* next
; /* Link to next merged note section. */
107 } merged_note_section
;
112 STRIP_NONE
, /* Don't strip. */
113 STRIP_DEBUG
, /* Strip all debugger symbols. */
114 STRIP_UNNEEDED
, /* Strip unnecessary symbols. */
115 STRIP_NONDEBUG
, /* Strip everything but debug info. */
116 STRIP_DWO
, /* Strip all DWO info. */
117 STRIP_NONDWO
, /* Strip everything but DWO info. */
118 STRIP_ALL
/* Strip all symbols. */
121 /* Which symbols to remove. */
122 static enum strip_action strip_symbols
= STRIP_UNDEF
;
127 LOCALS_START_L
, /* Discard locals starting with L. */
128 LOCALS_ALL
/* Discard all locals. */
131 /* Which local symbols to remove. Overrides STRIP_ALL. */
132 static enum locals_action discard_locals
;
134 /* Structure used to hold lists of sections and actions to take. */
137 struct section_list
*next
; /* Next section to change. */
138 const char *pattern
; /* Section name pattern. */
139 bool used
; /* Whether this entry was used. */
141 unsigned int context
; /* What to do with matching sections. */
142 /* Flag bits used in the context field.
143 COPY and REMOVE are mutually exlusive.
144 SET and ALTER are mutually exclusive. */
145 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
146 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
147 #define SECTION_CONTEXT_KEEP (1 << 2) /* Keep this section. */
148 #define SECTION_CONTEXT_SET_VMA (1 << 3) /* Set the sections' VMA address. */
149 #define SECTION_CONTEXT_ALTER_VMA (1 << 4) /* Increment or decrement the section's VMA address. */
150 #define SECTION_CONTEXT_SET_LMA (1 << 5) /* Set the sections' LMA address. */
151 #define SECTION_CONTEXT_ALTER_LMA (1 << 6) /* Increment or decrement the section's LMA address. */
152 #define SECTION_CONTEXT_SET_FLAGS (1 << 7) /* Set the section's flags. */
153 #define SECTION_CONTEXT_REMOVE_RELOCS (1 << 8) /* Remove relocations for this section. */
154 #define SECTION_CONTEXT_SET_ALIGNMENT (1 << 9) /* Set alignment for section. */
156 bfd_vma vma_val
; /* Amount to change by or set to. */
157 bfd_vma lma_val
; /* Amount to change by or set to. */
158 flagword flags
; /* What to set the section flags to. */
159 unsigned int alignment
; /* Alignment of output section. */
162 static struct section_list
*change_sections
;
164 /* TRUE if some sections are to be removed. */
165 static bool sections_removed
;
167 /* TRUE if only some sections are to be copied. */
168 static bool sections_copied
;
170 /* Changes to the start address. */
171 static bfd_vma change_start
= 0;
172 static bool set_start_set
= false;
173 static bfd_vma set_start
;
175 /* Changes to section addresses. */
176 static bfd_vma change_section_address
= 0;
178 /* Filling gaps between sections. */
179 static bool gap_fill_set
= false;
180 static bfd_byte gap_fill
= 0;
182 /* Pad to a given address. */
183 static bool pad_to_set
= false;
184 static bfd_vma pad_to
;
186 /* Use alternative machine code? */
187 static unsigned long use_alt_mach_code
= 0;
189 /* Output BFD flags user wants to set or clear */
190 static flagword bfd_flags_to_set
;
191 static flagword bfd_flags_to_clear
;
193 /* List of sections to add. */
196 /* Next section to add. */
197 struct section_add
*next
;
198 /* Name of section to add. */
200 /* Name of file holding section contents. */
201 const char *filename
;
204 /* Contents of file. */
206 /* BFD section, after it has been added. */
210 /* List of sections to add to the output BFD. */
211 static struct section_add
*add_sections
;
213 /* List of sections to update in the output BFD. */
214 static struct section_add
*update_sections
;
216 /* List of sections to dump from the output BFD. */
217 static struct section_add
*dump_sections
;
219 /* If non-NULL the argument to --add-gnu-debuglink.
220 This should be the filename to store in the .gnu_debuglink section. */
221 static const char * gnu_debuglink_filename
= NULL
;
223 /* Whether to convert debugging information. */
224 static bool convert_debugging
= false;
226 /* Whether to compress/decompress DWARF debug sections. */
231 compress_zlib
= compress
| 1 << 1,
232 compress_gnu_zlib
= compress
| 1 << 2,
233 compress_gabi_zlib
= compress
| 1 << 3,
234 compress_zstd
= compress
| 1 << 4,
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 /* Endianness of data for verilog output.
549 This variable is declared in bfd/verilog.c and is set in the
550 copy_object() function. */
551 extern enum bfd_endian VerilogDataEndianness
;
553 /* Forward declarations. */
554 static void setup_section (bfd
*, asection
*, void *);
555 static void setup_bfd_headers (bfd
*, bfd
*);
556 static void copy_relocations_in_section (bfd
*, asection
*, void *);
557 static void copy_section (bfd
*, asection
*, void *);
558 static void get_sections (bfd
*, asection
*, void *);
559 static int compare_section_lma (const void *, const void *);
560 static void mark_symbols_used_in_relocations (bfd
*, asection
*, void *);
561 static bool write_debugging_info (bfd
*, void *, long *, asymbol
***);
562 static const char *lookup_sym_redefinition (const char *);
563 static const char *find_section_rename (const char *, flagword
*);
565 ATTRIBUTE_NORETURN
static void
566 copy_usage (FILE *stream
, int exit_status
)
568 fprintf (stream
, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name
);
569 fprintf (stream
, _(" Copies a binary file, possibly transforming it in the process\n"));
570 fprintf (stream
, _(" The options are:\n"));
571 fprintf (stream
, _("\
572 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
573 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
574 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
575 -F --target <bfdname> Set both input and output format to <bfdname>\n\
576 --debugging Convert debugging information, if possible\n\
577 -p --preserve-dates Copy modified/access timestamps to the output\n"));
578 if (DEFAULT_AR_DETERMINISTIC
)
579 fprintf (stream
, _("\
580 -D --enable-deterministic-archives\n\
581 Produce deterministic output when stripping archives (default)\n\
582 -U --disable-deterministic-archives\n\
583 Disable -D behavior\n"));
585 fprintf (stream
, _("\
586 -D --enable-deterministic-archives\n\
587 Produce deterministic output when stripping archives\n\
588 -U --disable-deterministic-archives\n\
589 Disable -D behavior (default)\n"));
590 fprintf (stream
, _("\
591 -j --only-section <name> Only copy section <name> into the output\n\
592 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
593 -R --remove-section <name> Remove section <name> from the output\n\
594 --remove-relocations <name> Remove relocations from section <name>\n\
595 -S --strip-all Remove all symbol and relocation information\n\
596 -g --strip-debug Remove all debugging symbols & sections\n\
597 --strip-dwo Remove all DWO sections\n\
598 --strip-unneeded Remove all symbols not needed by relocations\n\
599 -N --strip-symbol <name> Do not copy symbol <name>\n\
600 --strip-unneeded-symbol <name>\n\
601 Do not copy symbol <name> unless needed by\n\
603 --only-keep-debug Strip everything but the debug information\n\
604 --extract-dwo Copy only DWO sections\n\
605 --extract-symbol Remove section contents but keep symbols\n\
606 --keep-section <name> Do not strip section <name>\n\
607 -K --keep-symbol <name> Do not strip symbol <name>\n\
608 --keep-section-symbols Do not strip section symbols\n\
609 --keep-file-symbols Do not strip file symbol(s)\n\
610 --localize-hidden Turn all ELF hidden symbols into locals\n\
611 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
612 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
613 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
614 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
615 --weaken Force all global symbols to be marked as weak\n\
616 -w --wildcard Permit wildcard in symbol comparison\n\
617 -x --discard-all Remove all non-global symbols\n\
618 -X --discard-locals Remove any compiler-generated symbols\n\
619 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
620 --interleave-width <number> Set N for --interleave\n\
621 -b --byte <num> Select byte <num> in every interleaved block\n\
622 --gap-fill <val> Fill gaps between sections with <val>\n\
623 --pad-to <addr> Pad the last section up to address <addr>\n\
624 --set-start <addr> Set the start address to <addr>\n\
625 {--change-start|--adjust-start} <incr>\n\
626 Add <incr> to the start address\n\
627 {--change-addresses|--adjust-vma} <incr>\n\
628 Add <incr> to LMA, VMA and start addresses\n\
629 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
630 Change LMA and VMA of section <name> by <val>\n\
631 --change-section-lma <name>{=|+|-}<val>\n\
632 Change the LMA of section <name> by <val>\n\
633 --change-section-vma <name>{=|+|-}<val>\n\
634 Change the VMA of section <name> by <val>\n\
635 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
636 Warn if a named section does not exist\n\
637 --set-section-flags <name>=<flags>\n\
638 Set section <name>'s properties to <flags>\n\
639 --set-section-alignment <name>=<align>\n\
640 Set section <name>'s alignment to <align> bytes\n\
641 --add-section <name>=<file> Add section <name> found in <file> to output\n\
642 --update-section <name>=<file>\n\
643 Update contents of section <name> with\n\
644 contents found in <file>\n\
645 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
646 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
647 --long-section-names {enable|disable|keep}\n\
648 Handle long section names in Coff objects.\n\
649 --change-leading-char Force output format's leading character style\n\
650 --remove-leading-char Remove leading character from global symbols\n\
651 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
652 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
653 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
655 --srec-len <number> Restrict the length of generated Srecords\n\
656 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
657 --strip-symbols <file> -N for all symbols listed in <file>\n\
658 --strip-unneeded-symbols <file>\n\
659 --strip-unneeded-symbol for all symbols listed\n\
661 --keep-symbols <file> -K for all symbols listed in <file>\n\
662 --localize-symbols <file> -L for all symbols listed in <file>\n\
663 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
664 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
665 --weaken-symbols <file> -W for all symbols listed in <file>\n\
666 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
667 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
668 --writable-text Mark the output text as writable\n\
669 --readonly-text Make the output text write protected\n\
670 --pure Mark the output file as demand paged\n\
671 --impure Mark the output file as impure\n\
672 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
673 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
674 --prefix-alloc-sections <prefix>\n\
675 Add <prefix> to start of every allocatable\n\
677 --file-alignment <num> Set PE file alignment to <num>\n\
678 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
680 --image-base <address> Set PE image base to <address>\n\
681 --section-alignment <num> Set PE section alignment to <num>\n\
682 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
684 --subsystem <name>[:<version>]\n\
685 Set PE subsystem to <name> [& <version>]\n\
686 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi|zstd}]\n\
687 Compress DWARF debug sections\n\
688 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
689 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
691 --verilog-data-width <number> Specifies data width, in bytes, for verilog output\n\
692 -M --merge-notes Remove redundant entries in note sections\n\
693 --no-merge-notes Do not attempt to remove redundant notes (default)\n\
694 -v --verbose List all object files modified\n\
695 @<file> Read options from <file>\n\
696 -V --version Display this program's version number\n\
697 -h --help Display this output\n\
698 --info List object formats & architectures supported\n\
700 list_supported_targets (program_name
, stream
);
701 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
702 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
706 ATTRIBUTE_NORETURN
static void
707 strip_usage (FILE *stream
, int exit_status
)
709 fprintf (stream
, _("Usage: %s <option(s)> in-file(s)\n"), program_name
);
710 fprintf (stream
, _(" Removes symbols and sections from files\n"));
711 fprintf (stream
, _(" The options are:\n"));
712 fprintf (stream
, _("\
713 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
714 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
715 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
716 -p --preserve-dates Copy modified/access timestamps to the output\n\
718 if (DEFAULT_AR_DETERMINISTIC
)
719 fprintf (stream
, _("\
720 -D --enable-deterministic-archives\n\
721 Produce deterministic output when stripping archives (default)\n\
722 -U --disable-deterministic-archives\n\
723 Disable -D behavior\n"));
725 fprintf (stream
, _("\
726 -D --enable-deterministic-archives\n\
727 Produce deterministic output when stripping archives\n\
728 -U --disable-deterministic-archives\n\
729 Disable -D behavior (default)\n"));
730 fprintf (stream
, _("\
731 -R --remove-section=<name> Also remove section <name> from the output\n\
732 --remove-relocations <name> Remove relocations from section <name>\n\
733 -s --strip-all Remove all symbol and relocation information\n\
734 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
735 --strip-dwo Remove all DWO sections\n\
736 --strip-unneeded Remove all symbols not needed by relocations\n\
737 --only-keep-debug Strip everything but the debug information\n\
738 -M --merge-notes Remove redundant entries in note sections (default)\n\
739 --no-merge-notes Do not attempt to remove redundant notes\n\
740 -N --strip-symbol=<name> Do not copy symbol <name>\n\
741 --keep-section=<name> Do not strip section <name>\n\
742 -K --keep-symbol=<name> Do not strip symbol <name>\n\
743 --keep-section-symbols Do not strip section symbols\n\
744 --keep-file-symbols Do not strip file symbol(s)\n\
745 -w --wildcard Permit wildcard in symbol comparison\n\
746 -x --discard-all Remove all non-global symbols\n\
747 -X --discard-locals Remove any compiler-generated symbols\n\
748 -v --verbose List all object files modified\n\
749 -V --version Display this program's version number\n\
750 -h --help Display this output\n\
751 --info List object formats & architectures supported\n\
752 -o <file> Place stripped output into <file>\n\
755 list_supported_targets (program_name
, stream
);
756 if (REPORT_BUGS_TO
[0] && exit_status
== 0)
757 fprintf (stream
, _("Report bugs to %s\n"), REPORT_BUGS_TO
);
761 /* Parse section flags into a flagword, with a fatal error if the
762 string can't be parsed. */
765 parse_flags (const char *s
)
775 snext
= strchr (s
, ',');
785 #define PARSE_FLAG(fname,fval) \
786 else if (strncasecmp (fname, s, len) == 0) ret |= fval
787 PARSE_FLAG ("alloc", SEC_ALLOC
);
788 PARSE_FLAG ("load", SEC_LOAD
);
789 PARSE_FLAG ("noload", SEC_NEVER_LOAD
);
790 PARSE_FLAG ("readonly", SEC_READONLY
);
791 PARSE_FLAG ("debug", SEC_DEBUGGING
);
792 PARSE_FLAG ("code", SEC_CODE
);
793 PARSE_FLAG ("data", SEC_DATA
);
794 PARSE_FLAG ("rom", SEC_ROM
);
795 PARSE_FLAG ("exclude", SEC_EXCLUDE
);
796 PARSE_FLAG ("share", SEC_COFF_SHARED
);
797 PARSE_FLAG ("contents", SEC_HAS_CONTENTS
);
798 PARSE_FLAG ("merge", SEC_MERGE
);
799 PARSE_FLAG ("strings", SEC_STRINGS
);
805 copy
= (char *) xmalloc (len
+ 1);
806 strncpy (copy
, s
, len
);
808 non_fatal (_("unrecognized section flag `%s'"), copy
);
809 fatal (_("supported flags: %s"),
810 "alloc, load, noload, readonly, debug, code, data, rom, exclude, share, contents, merge, strings");
820 /* Parse symbol flags into a flagword, with a fatal error if the
821 string can't be parsed. */
824 parse_symflags (const char *s
, const char **other
)
834 snext
= strchr (s
, ',');
843 #define PARSE_FLAG(fname, fval) \
844 else if (len == sizeof fname - 1 \
845 && strncasecmp (fname, s, len) == 0) \
848 #define PARSE_OTHER(fname, fval) \
849 else if (len >= sizeof fname \
850 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
851 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
854 PARSE_FLAG ("local", BSF_LOCAL
);
855 PARSE_FLAG ("global", BSF_GLOBAL
);
856 PARSE_FLAG ("export", BSF_EXPORT
);
857 PARSE_FLAG ("debug", BSF_DEBUGGING
);
858 PARSE_FLAG ("function", BSF_FUNCTION
);
859 PARSE_FLAG ("weak", BSF_WEAK
);
860 PARSE_FLAG ("section", BSF_SECTION_SYM
);
861 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR
);
862 PARSE_FLAG ("warning", BSF_WARNING
);
863 PARSE_FLAG ("indirect", BSF_INDIRECT
);
864 PARSE_FLAG ("file", BSF_FILE
);
865 PARSE_FLAG ("object", BSF_OBJECT
);
866 PARSE_FLAG ("synthetic", BSF_SYNTHETIC
);
867 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION
| BSF_FUNCTION
);
868 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE
| BSF_OBJECT
);
869 PARSE_OTHER ("before=", *other
);
877 copy
= (char *) xmalloc (len
+ 1);
878 strncpy (copy
, s
, len
);
880 non_fatal (_("unrecognized symbol flag `%s'"), copy
);
881 fatal (_("supported flags: %s"),
882 "local, global, export, debug, function, weak, section, "
883 "constructor, warning, indirect, file, object, synthetic, "
884 "indirect-function, unique-object, before=<othersym>");
894 /* Find and optionally add an entry in the change_sections list.
896 We need to be careful in how we match section names because of the support
897 for wildcard characters. For example suppose that the user has invoked
900 --set-section-flags .debug_*=debug
901 --set-section-flags .debug_str=readonly,debug
902 --change-section-address .debug_*ranges=0x1000
904 With the idea that all debug sections will receive the DEBUG flag, the
905 .debug_str section will also receive the READONLY flag and the
906 .debug_ranges and .debug_aranges sections will have their address set to
907 0x1000. (This may not make much sense, but it is just an example).
909 When adding the section name patterns to the section list we need to make
910 sure that previous entries do not match with the new entry, unless the
911 match is exact. (In which case we assume that the user is overriding
912 the previous entry with the new context).
914 When matching real section names to the section list we make use of the
915 wildcard characters, but we must do so in context. Eg if we are setting
916 section addresses then we match for .debug_ranges but not for .debug_info.
918 Finally, if ADD is false and we do find a match, we mark the section list
921 static struct section_list
*
922 find_section_list (const char *name
, bool add
, unsigned int context
)
924 struct section_list
*p
, *match
= NULL
;
926 /* assert ((context & ((1 << 7) - 1)) != 0); */
928 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
932 if (strcmp (p
->pattern
, name
) == 0)
934 /* Check for context conflicts. */
935 if (((p
->context
& SECTION_CONTEXT_REMOVE
)
936 && (context
& SECTION_CONTEXT_COPY
))
937 || ((context
& SECTION_CONTEXT_REMOVE
)
938 && (p
->context
& SECTION_CONTEXT_COPY
)))
939 fatal (_("error: %s both copied and removed"), name
);
941 if (((p
->context
& SECTION_CONTEXT_SET_VMA
)
942 && (context
& SECTION_CONTEXT_ALTER_VMA
))
943 || ((context
& SECTION_CONTEXT_SET_VMA
)
944 && (context
& SECTION_CONTEXT_ALTER_VMA
)))
945 fatal (_("error: %s both sets and alters VMA"), name
);
947 if (((p
->context
& SECTION_CONTEXT_SET_LMA
)
948 && (context
& SECTION_CONTEXT_ALTER_LMA
))
949 || ((context
& SECTION_CONTEXT_SET_LMA
)
950 && (context
& SECTION_CONTEXT_ALTER_LMA
)))
951 fatal (_("error: %s both sets and alters LMA"), name
);
953 /* Extend the context. */
954 p
->context
|= context
;
958 /* If we are not adding a new name/pattern then
959 only check for a match if the context applies. */
960 else if (p
->context
& context
)
962 /* We could check for the presence of wildchar characters
963 first and choose between calling strcmp and fnmatch,
964 but is that really worth it ? */
965 if (p
->pattern
[0] == '!')
967 if (fnmatch (p
->pattern
+ 1, name
, 0) == 0)
975 if (fnmatch (p
->pattern
, name
, 0) == 0)
991 p
= (struct section_list
*) xmalloc (sizeof (struct section_list
));
994 p
->context
= context
;
999 p
->next
= change_sections
;
1000 change_sections
= p
;
1005 /* S1 is the entry node already in the table, S2 is the key node. */
1008 eq_string_redefnode (const void *s1
, const void *s2
)
1010 struct redefine_node
*node1
= (struct redefine_node
*) s1
;
1011 struct redefine_node
*node2
= (struct redefine_node
*) s2
;
1012 return !strcmp ((const char *) node1
->source
, (const char *) node2
->source
);
1015 /* P is redefine node. Hash value is generated from its "source" filed. */
1018 htab_hash_redefnode (const void *p
)
1020 struct redefine_node
*redefnode
= (struct redefine_node
*) p
;
1021 return htab_hash_string (redefnode
->source
);
1024 /* Create hashtab used for redefine node. */
1027 create_symbol2redef_htab (void)
1029 return htab_create_alloc (16, htab_hash_redefnode
, eq_string_redefnode
, NULL
,
1034 create_symbol_htab (void)
1036 return htab_create_alloc (16, htab_hash_string
, htab_eq_string
, NULL
,
1041 create_symbol_htabs (void)
1043 strip_specific_htab
= create_symbol_htab ();
1044 strip_unneeded_htab
= create_symbol_htab ();
1045 keep_specific_htab
= create_symbol_htab ();
1046 localize_specific_htab
= create_symbol_htab ();
1047 globalize_specific_htab
= create_symbol_htab ();
1048 keepglobal_specific_htab
= create_symbol_htab ();
1049 weaken_specific_htab
= create_symbol_htab ();
1050 redefine_specific_htab
= create_symbol2redef_htab ();
1051 /* As there is no bidirectional hash table in libiberty, need a reverse table
1052 to check duplicated target string. */
1053 redefine_specific_reverse_htab
= create_symbol_htab ();
1057 delete_symbol_htabs (void)
1059 htab_delete (strip_specific_htab
);
1060 htab_delete (strip_unneeded_htab
);
1061 htab_delete (keep_specific_htab
);
1062 htab_delete (localize_specific_htab
);
1063 htab_delete (globalize_specific_htab
);
1064 htab_delete (keepglobal_specific_htab
);
1065 htab_delete (weaken_specific_htab
);
1066 htab_delete (redefine_specific_htab
);
1067 htab_delete (redefine_specific_reverse_htab
);
1070 /* Add a symbol to strip_specific_list. */
1073 add_specific_symbol (const char *name
, htab_t htab
)
1075 *htab_find_slot (htab
, name
, INSERT
) = (char *) name
;
1078 /* Like add_specific_symbol, but the element type is void *. */
1081 add_specific_symbol_node (const void *node
, htab_t htab
)
1083 *htab_find_slot (htab
, node
, INSERT
) = (void *) node
;
1086 /* Add symbols listed in `filename' to strip_specific_list. */
1088 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
1089 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
1092 add_specific_symbols (const char *filename
, htab_t htab
, char **buffer_p
)
1098 unsigned int line_count
;
1100 size
= get_file_size (filename
);
1107 buffer
= (char *) xmalloc (size
+ 2);
1108 f
= fopen (filename
, FOPEN_RT
);
1110 fatal (_("cannot open '%s': %s"), filename
, strerror (errno
));
1112 if (fread (buffer
, 1, size
, f
) == 0 || ferror (f
))
1113 fatal (_("%s: fread failed"), filename
);
1116 buffer
[size
] = '\n';
1117 buffer
[size
+ 1] = '\0';
1121 for (line
= buffer
; * line
!= '\0'; line
++)
1126 int finished
= false;
1128 for (eol
= line
;; eol
++)
1134 /* Cope with \n\r. */
1142 /* Cope with \r\n. */
1153 /* Line comment, Terminate the line here, in case a
1154 name is present and then allow the rest of the
1155 loop to find the real end of the line. */
1167 /* A name may now exist somewhere between 'line' and 'eol'.
1168 Strip off leading whitespace and trailing whitespace,
1169 then add it to the list. */
1170 for (name
= line
; IS_WHITESPACE (* name
); name
++)
1172 for (name_end
= name
;
1173 (! IS_WHITESPACE (* name_end
))
1174 && (! IS_LINE_TERMINATOR (* name_end
));
1178 if (! IS_LINE_TERMINATOR (* name_end
))
1182 for (extra
= name_end
+ 1; IS_WHITESPACE (* extra
); extra
++)
1185 if (! IS_LINE_TERMINATOR (* extra
))
1186 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1187 filename
, line_count
);
1192 if (name_end
> name
)
1193 add_specific_symbol (name
, htab
);
1195 /* Advance line pointer to end of line. The 'eol ++' in the for
1196 loop above will then advance us to the start of the next line. */
1201 /* Do not free the buffer. Parts of it will have been referenced
1202 in the calls to add_specific_symbol. */
1206 /* See whether a symbol should be stripped or kept
1207 based on strip_specific_list and keep_symbols. */
1210 is_specified_symbol_predicate (void **slot
, void *data
)
1212 struct is_specified_symbol_predicate_data
*d
=
1213 (struct is_specified_symbol_predicate_data
*) data
;
1214 const char *slot_name
= (char *) *slot
;
1216 if (*slot_name
!= '!')
1218 if (! fnmatch (slot_name
, d
->name
, 0))
1221 /* Continue traversal, there might be a non-match rule. */
1227 if (! fnmatch (slot_name
+ 1, d
->name
, 0))
1230 /* Stop traversal. */
1235 /* Continue traversal. */
1240 is_specified_symbol (const char *name
, htab_t htab
)
1244 struct is_specified_symbol_predicate_data data
;
1249 htab_traverse (htab
, is_specified_symbol_predicate
, &data
);
1254 return htab_find (htab
, name
) != NULL
;
1257 /* Return a pointer to the symbol used as a signature for GROUP. */
1260 group_signature (asection
*group
)
1262 bfd
*abfd
= group
->owner
;
1263 Elf_Internal_Shdr
*ghdr
;
1265 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1269 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
1272 ghdr
= &elf_section_data (group
)->this_hdr
;
1273 if (ghdr
->sh_link
== elf_onesymtab (abfd
))
1275 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1276 Elf_Internal_Shdr
*symhdr
= &elf_symtab_hdr (abfd
);
1278 if (ghdr
->sh_info
> 0
1279 && ghdr
->sh_info
< symhdr
->sh_size
/ bed
->s
->sizeof_sym
)
1280 return isympp
[ghdr
->sh_info
- 1];
1285 /* Return TRUE if the section is a DWO section. */
1288 is_dwo_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1293 if (sec
== NULL
|| (name
= bfd_section_name (sec
)) == NULL
)
1296 len
= strlen (name
);
1300 return startswith (name
+ len
- 4, ".dwo");
1303 /* Return TRUE if section SEC is in the update list. */
1306 is_update_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1308 if (update_sections
!= NULL
)
1310 struct section_add
*pupdate
;
1312 for (pupdate
= update_sections
;
1314 pupdate
= pupdate
->next
)
1316 if (strcmp (sec
->name
, pupdate
->name
) == 0)
1325 is_mergeable_note_section (bfd
* abfd
, asection
* sec
)
1328 && bfd_get_flavour (abfd
) == bfd_target_elf_flavour
1329 && elf_section_data (sec
)->this_hdr
.sh_type
== SHT_NOTE
1330 /* FIXME: We currently only support merging GNU_BUILD_NOTEs.
1331 We should add support for more note types. */
1332 && (startswith (sec
->name
, GNU_BUILD_ATTRS_SECTION_NAME
)))
1338 /* See if a non-group section is being removed. */
1341 is_strip_section_1 (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1343 if (find_section_list (bfd_section_name (sec
), false, SECTION_CONTEXT_KEEP
)
1347 if (sections_removed
|| sections_copied
)
1349 struct section_list
*p
;
1350 struct section_list
*q
;
1352 p
= find_section_list (bfd_section_name (sec
), false,
1353 SECTION_CONTEXT_REMOVE
);
1354 q
= find_section_list (bfd_section_name (sec
), false,
1355 SECTION_CONTEXT_COPY
);
1358 fatal (_("error: section %s matches both remove and copy options"),
1359 bfd_section_name (sec
));
1360 if (p
&& is_update_section (abfd
, sec
))
1361 fatal (_("error: section %s matches both update and remove options"),
1362 bfd_section_name (sec
));
1366 if (sections_copied
&& q
== NULL
)
1370 if ((bfd_section_flags (sec
) & SEC_DEBUGGING
) != 0)
1372 if (strip_symbols
== STRIP_DEBUG
1373 || strip_symbols
== STRIP_UNNEEDED
1374 || strip_symbols
== STRIP_ALL
1375 || discard_locals
== LOCALS_ALL
1376 || convert_debugging
)
1378 /* By default we don't want to strip .reloc section.
1379 This section has for pe-coff special meaning. See
1380 pe-dll.c file in ld, and peXXigen.c in bfd for details.
1381 Similarly we do not want to strip debuglink sections. */
1382 const char * kept_sections
[] =
1390 for (i
= ARRAY_SIZE (kept_sections
);i
--;)
1391 if (strcmp (bfd_section_name (sec
), kept_sections
[i
]) == 0)
1397 if (strip_symbols
== STRIP_DWO
)
1398 return is_dwo_section (abfd
, sec
);
1400 if (strip_symbols
== STRIP_NONDEBUG
)
1404 if (strip_symbols
== STRIP_NONDWO
)
1405 return !is_dwo_section (abfd
, sec
);
1410 /* See if a section is being removed. */
1413 is_strip_section (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
)
1415 if (is_strip_section_1 (abfd
, sec
))
1418 if ((bfd_section_flags (sec
) & SEC_GROUP
) != 0)
1422 asection
*elt
, *first
;
1424 gsym
= group_signature (sec
);
1425 /* Strip groups without a valid signature. */
1430 If we are going to strip the group signature symbol, then
1431 strip the group section too. */
1433 if ((strip_symbols
== STRIP_ALL
1434 && !is_specified_symbol (gname
, keep_specific_htab
))
1435 || is_specified_symbol (gname
, strip_specific_htab
))
1438 /* Remove the group section if all members are removed. */
1439 first
= elt
= elf_next_in_group (sec
);
1442 if (!is_strip_section_1 (abfd
, elt
))
1444 elt
= elf_next_in_group (elt
);
1456 is_nondebug_keep_contents_section (bfd
*ibfd
, asection
*isection
)
1458 /* Always keep ELF note sections. */
1459 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
1460 return elf_section_type (isection
) == SHT_NOTE
;
1462 /* Always keep the .buildid section for PE/COFF.
1464 Strictly, this should be written "always keep the section storing the debug
1465 directory", but that may be the .text section for objects produced by some
1466 tools, which it is not sensible to keep. */
1467 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
)
1468 return strcmp (bfd_section_name (isection
), ".buildid") == 0;
1473 /* Return true if SYM is a hidden symbol. */
1476 is_hidden_symbol (asymbol
*sym
)
1478 elf_symbol_type
*elf_sym
;
1480 elf_sym
= elf_symbol_from (sym
);
1481 if (elf_sym
!= NULL
)
1482 switch (ELF_ST_VISIBILITY (elf_sym
->internal_elf_sym
.st_other
))
1491 /* Empty name is hopefully never a valid symbol name. */
1492 static const char * empty_name
= "";
1495 need_sym_before (struct addsym_node
**node
, const char *sym
)
1498 struct addsym_node
*ptr
= add_sym_list
;
1500 /* 'othersym' symbols are at the front of the list. */
1501 for (count
= 0; count
< add_symbols
; count
++)
1505 if (ptr
->othersym
== empty_name
)
1507 else if (strcmp (ptr
->othersym
, sym
) == 0)
1509 free ((char *) ptr
->othersym
);
1510 ptr
->othersym
= empty_name
;
1520 create_new_symbol (struct addsym_node
*ptr
, bfd
*obfd
)
1522 asymbol
*sym
= bfd_make_empty_symbol (obfd
);
1524 bfd_set_asymbol_name (sym
, ptr
->symdef
);
1525 sym
->value
= ptr
->symval
;
1526 sym
->flags
= ptr
->flags
;
1529 asection
*sec
= bfd_get_section_by_name (obfd
, ptr
->section
);
1531 fatal (_("Section %s not found"), ptr
->section
);
1535 sym
->section
= bfd_abs_section_ptr
;
1539 /* Choose which symbol entries to copy; put the result in OSYMS.
1540 We don't copy in place, because that confuses the relocs.
1541 Return the number of symbols to print. */
1544 filter_symbols (bfd
*abfd
, bfd
*obfd
, asymbol
**osyms
,
1545 asymbol
**isyms
, long symcount
)
1547 asymbol
**from
= isyms
, **to
= osyms
;
1548 long src_count
= 0, dst_count
= 0;
1549 int relocatable
= (abfd
->flags
& (EXEC_P
| DYNAMIC
)) == 0;
1551 for (; src_count
< symcount
; src_count
++)
1553 asymbol
*sym
= from
[src_count
];
1554 flagword flags
= sym
->flags
;
1555 char *name
= (char *) bfd_asymbol_name (sym
);
1557 bool used_in_reloc
= false;
1559 bool rem_leading_char
;
1560 bool add_leading_char
;
1562 undefined
= bfd_is_und_section (bfd_asymbol_section (sym
));
1566 struct addsym_node
*ptr
;
1568 if (need_sym_before (&ptr
, name
))
1569 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1572 if (htab_elements (redefine_specific_htab
) || section_rename_list
)
1579 && strcmp (name
+ (name
[2] == '_'), "__gnu_lto_slim") == 0)
1581 fatal (_("redefining symbols does not work on LTO-compiled object files"));
1584 new_name
= (char *) lookup_sym_redefinition (name
);
1585 if (new_name
== name
1586 && (flags
& BSF_SECTION_SYM
) != 0)
1587 new_name
= (char *) find_section_rename (name
, NULL
);
1588 bfd_set_asymbol_name (sym
, new_name
);
1592 /* Check if we will remove the current leading character. */
1595 && name
[0] == bfd_get_symbol_leading_char (abfd
)
1596 && (change_leading_char
1597 || (remove_leading_char
1598 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1600 || bfd_is_com_section (bfd_asymbol_section (sym
))))));
1602 /* Check if we will add a new leading character. */
1605 && (bfd_get_symbol_leading_char (obfd
) != '\0')
1606 && (bfd_get_symbol_leading_char (abfd
) == '\0'
1607 || (name
[0] == bfd_get_symbol_leading_char (abfd
)));
1609 /* Short circuit for change_leading_char if we can do it in-place. */
1610 if (rem_leading_char
&& add_leading_char
&& !prefix_symbols_string
)
1612 name
[0] = bfd_get_symbol_leading_char (obfd
);
1613 bfd_set_asymbol_name (sym
, name
);
1614 rem_leading_char
= false;
1615 add_leading_char
= false;
1618 /* Remove leading char. */
1619 if (rem_leading_char
)
1620 bfd_set_asymbol_name (sym
, ++name
);
1622 /* Add new leading char and/or prefix. */
1623 if (add_leading_char
|| prefix_symbols_string
)
1626 size_t len
= strlen (name
) + 1;
1628 if (add_leading_char
)
1630 if (prefix_symbols_string
)
1631 len
+= strlen (prefix_symbols_string
);
1633 ptr
= n
= (char *) xmalloc (len
);
1634 if (add_leading_char
)
1635 *ptr
++ = bfd_get_symbol_leading_char (obfd
);
1637 if (prefix_symbols_string
)
1639 strcpy (ptr
, prefix_symbols_string
);
1640 ptr
+= strlen (prefix_symbols_string
);
1644 bfd_set_asymbol_name (sym
, n
);
1648 if (strip_symbols
== STRIP_ALL
)
1650 else if ((flags
& BSF_KEEP
) != 0 /* Used in relocation. */
1651 || ((flags
& BSF_SECTION_SYM
) != 0
1652 && ((*bfd_asymbol_section (sym
)->symbol_ptr_ptr
)->flags
1656 used_in_reloc
= true;
1658 else if (relocatable
/* Relocatable file. */
1659 && ((flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
1660 || bfd_is_com_section (bfd_asymbol_section (sym
))))
1662 else if (bfd_decode_symclass (sym
) == 'I')
1663 /* Global symbols in $idata sections need to be retained
1664 even if relocatable is FALSE. External users of the
1665 library containing the $idata section may reference these
1668 else if ((flags
& BSF_GLOBAL
) != 0 /* Global symbol. */
1669 || (flags
& BSF_WEAK
) != 0
1671 || bfd_is_com_section (bfd_asymbol_section (sym
)))
1672 keep
= strip_symbols
!= STRIP_UNNEEDED
;
1673 else if ((flags
& BSF_DEBUGGING
) != 0) /* Debugging symbol. */
1674 keep
= (strip_symbols
!= STRIP_DEBUG
1675 && strip_symbols
!= STRIP_UNNEEDED
1676 && ! convert_debugging
);
1677 else if (bfd_coff_get_comdat_section (abfd
, bfd_asymbol_section (sym
)))
1678 /* COMDAT sections store special information in local
1679 symbols, so we cannot risk stripping any of them. */
1681 else /* Local symbol. */
1682 keep
= (strip_symbols
!= STRIP_UNNEEDED
1683 && (discard_locals
!= LOCALS_ALL
1684 && (discard_locals
!= LOCALS_START_L
1685 || ! bfd_is_local_label (abfd
, sym
))));
1687 if (keep
&& is_specified_symbol (name
, strip_specific_htab
))
1689 /* There are multiple ways to set 'keep' above, but if it
1690 was the relocatable symbol case, then that's an error. */
1693 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name
);
1701 && !(flags
& BSF_KEEP
)
1702 && is_specified_symbol (name
, strip_unneeded_htab
))
1706 && ((keep_file_symbols
&& (flags
& BSF_FILE
))
1707 || is_specified_symbol (name
, keep_specific_htab
)))
1710 if (keep
&& is_strip_section (abfd
, bfd_asymbol_section (sym
)))
1715 if (((flags
& (BSF_GLOBAL
| BSF_GNU_UNIQUE
))
1717 && (weaken
|| is_specified_symbol (name
, weaken_specific_htab
)))
1719 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_GNU_UNIQUE
);
1720 sym
->flags
|= BSF_WEAK
;
1724 && (flags
& (BSF_GLOBAL
| BSF_WEAK
))
1725 && (is_specified_symbol (name
, localize_specific_htab
)
1726 || (htab_elements (keepglobal_specific_htab
) != 0
1727 && ! is_specified_symbol (name
, keepglobal_specific_htab
))
1728 || (localize_hidden
&& is_hidden_symbol (sym
))))
1730 sym
->flags
&= ~ (BSF_GLOBAL
| BSF_WEAK
);
1731 sym
->flags
|= BSF_LOCAL
;
1735 && (flags
& BSF_LOCAL
)
1736 && is_specified_symbol (name
, globalize_specific_htab
))
1738 sym
->flags
&= ~ BSF_LOCAL
;
1739 sym
->flags
|= BSF_GLOBAL
;
1742 to
[dst_count
++] = sym
;
1747 struct addsym_node
*ptr
= add_sym_list
;
1749 for (src_count
= 0; src_count
< add_symbols
; src_count
++)
1753 if (ptr
->othersym
!= empty_name
)
1754 fatal (_("'before=%s' not found"), ptr
->othersym
);
1757 to
[dst_count
++] = create_new_symbol (ptr
, obfd
);
1763 to
[dst_count
] = NULL
;
1768 /* Find the redefined name of symbol SOURCE. */
1771 lookup_sym_redefinition (const char *source
)
1773 struct redefine_node key_node
= {(char *) source
, NULL
};
1774 struct redefine_node
*redef_node
1775 = (struct redefine_node
*) htab_find (redefine_specific_htab
, &key_node
);
1777 return redef_node
== NULL
? source
: redef_node
->target
;
1780 /* Insert a node into symbol redefine hash tabel. */
1783 add_redefine_and_check (const char *cause
, const char *source
,
1786 struct redefine_node
*new_node
1787 = (struct redefine_node
*) xmalloc (sizeof (struct redefine_node
));
1789 new_node
->source
= strdup (source
);
1790 new_node
->target
= strdup (target
);
1792 if (htab_find (redefine_specific_htab
, new_node
) != HTAB_EMPTY_ENTRY
)
1793 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1796 if (htab_find (redefine_specific_reverse_htab
, target
) != HTAB_EMPTY_ENTRY
)
1797 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1800 /* Insert the NEW_NODE into hash table for quick search. */
1801 add_specific_symbol_node (new_node
, redefine_specific_htab
);
1803 /* Insert the target string into the reverse hash table, this is needed for
1804 duplicated target string check. */
1805 add_specific_symbol (new_node
->target
, redefine_specific_reverse_htab
);
1809 /* Handle the --redefine-syms option. Read lines containing "old new"
1810 from the file, and add them to the symbol redefine list. */
1813 add_redefine_syms_file (const char *filename
)
1822 file
= fopen (filename
, "r");
1824 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1825 filename
, strerror (errno
));
1828 buf
= (char *) xmalloc (bufsize
+ 1 /* For the terminating NUL. */);
1836 /* Collect the input symbol name. */
1837 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1845 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1853 /* Eat white space between the symbol names. */
1854 while (IS_WHITESPACE (c
))
1856 if (c
== '#' || IS_LINE_TERMINATOR (c
))
1861 /* Collect the output symbol name. */
1863 while (! IS_WHITESPACE (c
) && ! IS_LINE_TERMINATOR (c
) && c
!= EOF
)
1871 buf
= (char *) xrealloc (buf
, bufsize
+ 1);
1879 /* Eat white space at end of line. */
1880 while (! IS_LINE_TERMINATOR(c
) && c
!= EOF
&& IS_WHITESPACE (c
))
1885 if ((c
== '\r' && (c
= getc (file
)) == '\n')
1886 || c
== '\n' || c
== EOF
)
1889 /* Append the redefinition to the list. */
1891 add_redefine_and_check (filename
, &buf
[0], &buf
[outsym_off
]);
1902 fatal (_("%s:%d: garbage found at end of line"), filename
, lineno
);
1904 if (len
!= 0 && (outsym_off
== 0 || outsym_off
== len
))
1905 fatal (_("%s:%d: missing new symbol name"), filename
, lineno
);
1908 /* Eat the rest of the line and finish it. */
1909 while (c
!= '\n' && c
!= EOF
)
1915 fatal (_("%s:%d: premature end of file"), filename
, lineno
);
1921 /* Copy unknown object file IBFD onto OBFD.
1922 Returns TRUE upon success, FALSE otherwise. */
1925 copy_unknown_object (bfd
*ibfd
, bfd
*obfd
)
1928 bfd_size_type tocopy
;
1932 if (bfd_stat_arch_elt (ibfd
, &buf
) != 0)
1934 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1941 non_fatal (_("stat returns negative size for `%s'"),
1942 bfd_get_archive_filename (ibfd
));
1946 if (bfd_seek (ibfd
, (file_ptr
) 0, SEEK_SET
) != 0)
1948 bfd_nonfatal (bfd_get_archive_filename (ibfd
));
1953 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1954 bfd_get_archive_filename (ibfd
), bfd_get_filename (obfd
));
1956 cbuf
= (char *) xmalloc (BUFSIZE
);
1964 if (bfd_bread (cbuf
, tocopy
, ibfd
) != tocopy
)
1966 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
1971 if (bfd_bwrite (cbuf
, tocopy
, obfd
) != tocopy
)
1973 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
1981 /* We should at least to be able to read it back when copying an
1982 unknown object in an archive. */
1983 chmod (bfd_get_filename (obfd
), buf
.st_mode
| S_IRUSR
);
1988 typedef struct objcopy_internal_note
1990 Elf_Internal_Note note
;
1991 unsigned long padded_namesz
;
1994 } objcopy_internal_note
;
1996 #define DEBUG_MERGE 0
1999 #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
2001 #define merge_debug(format, ...)
2004 /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */
2007 overlaps_or_adjoins (objcopy_internal_note
* pnote1
,
2008 objcopy_internal_note
* pnote2
)
2010 if (pnote1
->end
< pnote2
->start
)
2011 /* FIXME: Alignment of 16 bytes taken from x86_64 binaries.
2012 Really we should extract the alignment of the section
2013 covered by the notes. */
2014 return BFD_ALIGN (pnote1
->end
, 16) < pnote2
->start
;
2016 if (pnote2
->end
< pnote2
->start
)
2017 return BFD_ALIGN (pnote2
->end
, 16) < pnote1
->start
;
2019 if (pnote1
->end
< pnote2
->end
)
2022 if (pnote2
->end
< pnote1
->end
)
2028 /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */
2031 contained_by (objcopy_internal_note
* needle
,
2032 objcopy_internal_note
* haystack
)
2034 return needle
->start
>= haystack
->start
&& needle
->end
<= haystack
->end
;
2038 is_open_note (objcopy_internal_note
* pnote
)
2040 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_OPEN
;
2044 is_func_note (objcopy_internal_note
* pnote
)
2046 return pnote
->note
.type
== NT_GNU_BUILD_ATTRIBUTE_FUNC
;
2050 is_deleted_note (objcopy_internal_note
* pnote
)
2052 return pnote
->note
.type
== 0;
2056 is_version_note (objcopy_internal_note
* pnote
)
2058 return (pnote
->note
.namesz
> 4
2059 && pnote
->note
.namedata
[0] == 'G'
2060 && pnote
->note
.namedata
[1] == 'A'
2061 && pnote
->note
.namedata
[2] == '$'
2062 && pnote
->note
.namedata
[3] == GNU_BUILD_ATTRIBUTE_VERSION
);
2066 is_64bit (bfd
* abfd
)
2068 /* Should never happen, but let's be paranoid. */
2069 if (bfd_get_flavour (abfd
) != bfd_target_elf_flavour
)
2072 return elf_elfheader (abfd
)->e_ident
[EI_CLASS
] == ELFCLASS64
;
2075 /* This sorting function is used to get the notes into an order
2076 that makes merging easy. */
2079 compare_gnu_build_notes (const void * data1
, const void * data2
)
2081 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2082 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2084 /* Sort notes based upon the attribute they record. */
2085 int cmp
= memcmp (pnote1
->note
.namedata
+ 3,
2086 pnote2
->note
.namedata
+ 3,
2087 pnote1
->note
.namesz
< pnote2
->note
.namesz
?
2088 pnote1
->note
.namesz
- 3 : pnote2
->note
.namesz
- 3);
2092 if (pnote1
->end
< pnote2
->start
)
2094 if (pnote1
->start
> pnote2
->end
)
2097 /* Overlaps - we should merge the two ranges. */
2098 if (pnote1
->start
< pnote2
->start
)
2100 if (pnote1
->end
> pnote2
->end
)
2102 if (pnote1
->end
< pnote2
->end
)
2105 /* Put OPEN notes before function notes. */
2106 if (is_open_note (pnote1
) && ! is_open_note (pnote2
))
2108 if (! is_open_note (pnote1
) && is_open_note (pnote2
))
2114 /* This sorting function is used to get the notes into an order
2115 that makes eliminating address ranges easier. */
2118 sort_gnu_build_notes (const void * data1
, const void * data2
)
2120 objcopy_internal_note
* pnote1
= (objcopy_internal_note
*) data1
;
2121 objcopy_internal_note
* pnote2
= (objcopy_internal_note
*) data2
;
2123 if (pnote1
->note
.type
!= pnote2
->note
.type
)
2125 /* Move deleted notes to the end. */
2126 if (is_deleted_note (pnote1
)) /* 1: OFD 2: OFD */
2129 /* Move OPEN notes to the start. */
2130 if (is_open_note (pnote1
)) /* 1: OF 2: OFD */
2133 if (is_deleted_note (pnote2
)) /* 1: F 2: O D */
2136 return 1; /* 1: F 2: O */
2139 /* Sort by starting address. */
2140 if (pnote1
->start
< pnote2
->start
)
2142 if (pnote1
->start
> pnote2
->start
)
2145 /* Then by end address (bigger range first). */
2146 if (pnote1
->end
> pnote2
->end
)
2148 if (pnote1
->end
< pnote2
->end
)
2151 /* Then by attribute type. */
2152 if (pnote1
->note
.namesz
> 4
2153 && pnote2
->note
.namesz
> 4
2154 && pnote1
->note
.namedata
[3] != pnote2
->note
.namedata
[3])
2155 return pnote1
->note
.namedata
[3] - pnote2
->note
.namedata
[3];
2160 /* Merge the notes on SEC, removing redundant entries.
2161 Returns the new, smaller size of the section upon success. */
2163 static bfd_size_type
2164 merge_gnu_build_notes (bfd
* abfd
,
2167 bfd_byte
* contents
)
2169 objcopy_internal_note
* pnotes_end
;
2170 objcopy_internal_note
* pnotes
= NULL
;
2171 objcopy_internal_note
* pnote
;
2172 bfd_size_type remain
= size
;
2173 unsigned version_1_seen
= 0;
2174 unsigned version_2_seen
= 0;
2175 unsigned version_3_seen
= 0;
2176 const char * err
= NULL
;
2177 bfd_byte
* in
= contents
;
2178 unsigned long previous_func_start
= 0;
2179 unsigned long previous_open_start
= 0;
2180 unsigned long previous_func_end
= 0;
2181 unsigned long previous_open_end
= 0;
2184 relsize
= bfd_get_reloc_upper_bound (abfd
, sec
);
2190 /* If there are relocs associated with this section then we
2191 cannot safely merge it. */
2192 relpp
= (arelent
**) xmalloc (relsize
);
2193 relcount
= bfd_canonicalize_reloc (abfd
, sec
, relpp
, isympp
);
2198 non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"),
2199 bfd_get_filename (abfd
), bfd_section_name (sec
));
2204 /* Make a copy of the notes and convert to our internal format.
2205 Minimum size of a note is 12 bytes. Also locate the version
2206 notes and check them. */
2207 pnote
= pnotes
= (objcopy_internal_note
*)
2208 xcalloc ((size
/ 12), sizeof (* pnote
));
2209 while (remain
>= 12)
2213 pnote
->note
.namesz
= bfd_get_32 (abfd
, in
);
2214 pnote
->note
.descsz
= bfd_get_32 (abfd
, in
+ 4);
2215 pnote
->note
.type
= bfd_get_32 (abfd
, in
+ 8);
2216 pnote
->padded_namesz
= (pnote
->note
.namesz
+ 3) & ~3;
2218 if (((pnote
->note
.descsz
+ 3) & ~3) != pnote
->note
.descsz
)
2220 err
= _("corrupt GNU build attribute note: description size not a factor of 4");
2224 if (pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_OPEN
2225 && pnote
->note
.type
!= NT_GNU_BUILD_ATTRIBUTE_FUNC
)
2227 err
= _("corrupt GNU build attribute note: wrong note type");
2231 if (pnote
->padded_namesz
+ pnote
->note
.descsz
+ 12 > remain
)
2233 err
= _("corrupt GNU build attribute note: note too big");
2237 if (pnote
->note
.namesz
< 2)
2239 err
= _("corrupt GNU build attribute note: name too small");
2243 pnote
->note
.namedata
= (char *)(in
+ 12);
2244 pnote
->note
.descdata
= (char *)(in
+ 12 + pnote
->padded_namesz
);
2246 remain
-= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2247 in
+= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2249 if (pnote
->note
.namesz
> 2
2250 && pnote
->note
.namedata
[0] == '$'
2251 && pnote
->note
.namedata
[1] == GNU_BUILD_ATTRIBUTE_VERSION
2252 && pnote
->note
.namedata
[2] == '1')
2254 else if (is_version_note (pnote
))
2256 if (pnote
->note
.namedata
[4] == '2')
2258 else if (pnote
->note
.namedata
[4] == '3')
2262 err
= _("corrupt GNU build attribute note: unsupported version");
2267 switch (pnote
->note
.descsz
)
2274 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2275 /* FIXME: For version 1 and 2 notes we should try to
2276 calculate the end address by finding a symbol whose
2277 value is START, and then adding in its size.
2279 For now though, since v1 and v2 was not intended to
2280 handle gaps, we chose an artificially large end
2286 start
= bfd_get_32 (abfd
, pnote
->note
.descdata
);
2287 end
= bfd_get_32 (abfd
, pnote
->note
.descdata
+ 4);
2291 start
= bfd_get_64 (abfd
, pnote
->note
.descdata
);
2292 end
= bfd_get_64 (abfd
, pnote
->note
.descdata
+ 8);
2296 err
= _("corrupt GNU build attribute note: bad description size");
2301 /* This can happen with PPC64LE binaries where empty notes are
2302 encoded as start = end + 4. */
2305 if (is_open_note (pnote
))
2308 previous_open_start
= start
;
2310 pnote
->start
= previous_open_start
;
2313 previous_open_end
= end
;
2315 pnote
->end
= previous_open_end
;
2320 previous_func_start
= start
;
2322 pnote
->start
= previous_func_start
;
2325 previous_func_end
= end
;
2327 pnote
->end
= previous_func_end
;
2330 if (pnote
->note
.namedata
[pnote
->note
.namesz
- 1] != 0)
2332 err
= _("corrupt GNU build attribute note: name not NUL terminated");
2341 /* Check that the notes are valid. */
2344 err
= _("corrupt GNU build attribute notes: excess data at end");
2348 if (version_1_seen
== 0 && version_2_seen
== 0 && version_3_seen
== 0)
2351 err
= _("bad GNU build attribute notes: no known versions detected");
2354 /* This happens with glibc. No idea why. */
2355 non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"),
2356 bfd_get_filename (abfd
), bfd_section_name (sec
));
2361 if ( (version_1_seen
> 0 && version_2_seen
> 0)
2362 || (version_1_seen
> 0 && version_3_seen
> 0)
2363 || (version_2_seen
> 0 && version_3_seen
> 0))
2365 err
= _("bad GNU build attribute notes: multiple different versions");
2369 /* We are now only supporting the merging v3+ notes
2370 - it makes things much simpler. */
2371 if (version_3_seen
== 0)
2373 merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec
));
2377 merge_debug ("Merging section %s which contains %ld notes\n",
2378 sec
->name
, pnotes_end
- pnotes
);
2380 /* Sort the notes. */
2381 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
),
2382 compare_gnu_build_notes
);
2385 merge_debug ("Results of initial sort:\n");
2386 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2387 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2388 (pnote
->note
.namedata
- (char *) contents
) - 12,
2389 pnote
->start
, pnote
->end
,
2391 pnote
->note
.namedata
[3],
2396 /* Now merge the notes. The rules are:
2397 1. If a note has a zero range, it can be eliminated.
2398 2. If two notes have the same namedata then:
2399 2a. If one note's range is fully covered by the other note
2400 then it can be deleted.
2401 2b. If one note's range partially overlaps or adjoins the
2402 other note then if they are both of the same type (open
2403 or func) then they can be merged and one deleted. If
2404 they are of different types then they cannot be merged. */
2405 objcopy_internal_note
* prev_note
= NULL
;
2407 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2409 /* Skip already deleted notes.
2410 FIXME: Can this happen ? We are scanning forwards and
2411 deleting backwards after all. */
2412 if (is_deleted_note (pnote
))
2415 /* Rule 1 - delete 0-range notes. */
2416 if (pnote
->start
== pnote
->end
)
2418 merge_debug ("Delete note at offset %#08lx - empty range\n",
2419 (pnote
->note
.namedata
- (char *) contents
) - 12);
2420 pnote
->note
.type
= 0;
2425 objcopy_internal_note
* back
;
2427 /* Rule 2: Check to see if there is an identical previous note. */
2428 for (iter
= 0, back
= prev_note
? prev_note
: pnote
- 1;
2432 if (is_deleted_note (back
))
2435 /* Our sorting function should have placed all identically
2436 attributed notes together, so if we see a note of a different
2437 attribute type stop searching. */
2438 if (back
->note
.namesz
!= pnote
->note
.namesz
2439 || memcmp (back
->note
.namedata
,
2440 pnote
->note
.namedata
, pnote
->note
.namesz
) != 0)
2443 if (back
->start
== pnote
->start
2444 && back
->end
== pnote
->end
)
2446 merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n",
2447 (pnote
->note
.namedata
- (char *) contents
) - 12,
2448 (back
->note
.namedata
- (char *) contents
) - 12);
2449 pnote
->note
.type
= 0;
2454 if (contained_by (pnote
, back
))
2456 merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n",
2457 (pnote
->note
.namedata
- (char *) contents
) - 12,
2458 (back
->note
.namedata
- (char *) contents
) - 12);
2459 pnote
->note
.type
= 0;
2464 /* This should not happen as we have sorted the
2465 notes with earlier starting addresses first. */
2466 if (contained_by (back
, pnote
))
2467 merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n");
2471 if (overlaps_or_adjoins (back
, pnote
)
2472 && is_func_note (back
) == is_func_note (pnote
))
2474 merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n",
2475 (pnote
->note
.namedata
- (char *) contents
) - 12,
2476 (back
->note
.namedata
- (char *) contents
) - 12);
2478 back
->end
= back
->end
> pnote
->end
? back
->end
: pnote
->end
;
2479 back
->start
= back
->start
< pnote
->start
? back
->start
: pnote
->start
;
2480 pnote
->note
.type
= 0;
2484 /* Don't scan too far back however. */
2487 /* FIXME: Not sure if this can ever be triggered. */
2488 merge_debug ("ITERATION LIMIT REACHED\n");
2493 if (! is_deleted_note (pnote
))
2495 /* Keep a pointer to this note, so that we can
2496 start the next search for rule 2 matches here. */
2499 merge_debug ("Unable to do anything with note at %#08lx\n",
2500 (pnote
->note
.namedata
- (char *) contents
) - 12);
2505 /* Resort the notes. */
2506 merge_debug ("Final sorting of notes\n");
2507 qsort (pnotes
, pnotes_end
- pnotes
, sizeof (* pnotes
), sort_gnu_build_notes
);
2509 /* Reconstruct the ELF notes. */
2510 bfd_byte
* new_contents
;
2513 bfd_size_type new_size
;
2514 bfd_vma prev_start
= 0;
2515 bfd_vma prev_end
= 0;
2517 /* Not sure how, but the notes might grow in size.
2518 (eg see PR 1774507). Allow for this here. */
2519 new = new_contents
= xmalloc (size
* 2);
2520 for (pnote
= pnotes
, old
= contents
;
2524 bfd_size_type note_size
= 12 + pnote
->padded_namesz
+ pnote
->note
.descsz
;
2526 if (! is_deleted_note (pnote
))
2528 /* Create the note, potentially using the
2529 address range of the previous note. */
2530 if (pnote
->start
== prev_start
&& pnote
->end
== prev_end
)
2532 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2533 bfd_put_32 (abfd
, 0, new + 4);
2534 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2536 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2537 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2538 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2539 new += pnote
->padded_namesz
;
2543 bfd_put_32 (abfd
, pnote
->note
.namesz
, new);
2544 bfd_put_32 (abfd
, is_64bit (abfd
) ? 16 : 8, new + 4);
2545 bfd_put_32 (abfd
, pnote
->note
.type
, new + 8);
2547 memcpy (new, pnote
->note
.namedata
, pnote
->note
.namesz
);
2548 if (pnote
->note
.namesz
< pnote
->padded_namesz
)
2549 memset (new + pnote
->note
.namesz
, 0, pnote
->padded_namesz
- pnote
->note
.namesz
);
2550 new += pnote
->padded_namesz
;
2551 if (is_64bit (abfd
))
2553 bfd_put_64 (abfd
, pnote
->start
, new);
2554 bfd_put_64 (abfd
, pnote
->end
, new + 8);
2559 bfd_put_32 (abfd
, pnote
->start
, new);
2560 bfd_put_32 (abfd
, pnote
->end
, new + 4);
2564 prev_start
= pnote
->start
;
2565 prev_end
= pnote
->end
;
2573 merge_debug ("Results of merge:\n");
2574 for (pnote
= pnotes
; pnote
< pnotes_end
; pnote
++)
2575 if (! is_deleted_note (pnote
))
2576 merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n",
2577 (pnote
->note
.namedata
- (char *) contents
) - 12,
2578 pnote
->start
, pnote
->end
,
2580 pnote
->note
.namedata
[3],
2585 new_size
= new - new_contents
;
2586 if (new_size
< size
)
2588 memcpy (contents
, new_contents
, new_size
);
2591 free (new_contents
);
2596 bfd_set_error (bfd_error_bad_value
);
2597 bfd_nonfatal_message (NULL
, abfd
, sec
, err
);
2606 check_new_section_flags (flagword flags
, bfd
* abfd
, const char * secname
)
2608 /* Only set the SEC_COFF_SHARED flag on COFF files.
2609 The same bit value is used by ELF targets to indicate
2610 compressed sections, and setting that flag here breaks
2612 if ((flags
& SEC_COFF_SHARED
)
2613 && bfd_get_flavour (abfd
) != bfd_target_coff_flavour
)
2615 non_fatal (_("%s[%s]: Note - dropping 'share' flag as output format is not COFF"),
2616 bfd_get_filename (abfd
), secname
);
2617 flags
&= ~ SEC_COFF_SHARED
;
2623 set_long_section_mode (bfd
*output_bfd
, bfd
*input_bfd
, enum long_section_name_handling style
)
2625 /* This is only relevant to Coff targets. */
2626 if (bfd_get_flavour (output_bfd
) == bfd_target_coff_flavour
)
2629 && bfd_get_flavour (input_bfd
) == bfd_target_coff_flavour
)
2630 style
= bfd_coff_long_section_names (input_bfd
) ? ENABLE
: DISABLE
;
2631 bfd_coff_set_long_section_names (output_bfd
, style
!= DISABLE
);
2635 /* Copy object file IBFD onto OBFD.
2636 Returns TRUE upon success, FALSE otherwise. */
2639 copy_object (bfd
*ibfd
, bfd
*obfd
, const bfd_arch_info_type
*input_arch
)
2643 asection
**osections
= NULL
;
2645 asection
*gnu_debuglink_section
= NULL
;
2646 bfd_size_type
*gaps
= NULL
;
2647 bfd_size_type max_gap
= 0;
2650 enum bfd_architecture iarch
;
2652 unsigned int num_sec
, i
;
2654 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2655 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2656 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2658 /* PR 17636: Call non-fatal so that we return to our parent who
2659 may need to tidy temporary files. */
2660 non_fatal (_("unable to change endianness of '%s'"),
2661 bfd_get_archive_filename (ibfd
));
2665 if (ibfd
->read_only
)
2667 non_fatal (_("unable to modify '%s' due to errors"),
2668 bfd_get_archive_filename (ibfd
));
2672 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2674 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
2678 if (ibfd
->sections
== NULL
)
2680 non_fatal (_("error: the input file '%s' has no sections"),
2681 bfd_get_archive_filename (ibfd
));
2685 /* This is a no-op on non-Coff targets. */
2686 set_long_section_mode (obfd
, ibfd
, long_section_names
);
2688 /* Set the Verilog output endianness based upon the input file's
2689 endianness. We may not be producing verilog format output,
2690 but testing this just adds extra code this is not really
2692 VerilogDataEndianness
= ibfd
->xvec
->byteorder
;
2694 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2696 if ((do_debug_sections
& compress
) != 0
2697 && do_debug_sections
!= compress
)
2699 non_fatal (_ ("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi|"
2700 "zstd] is unsupported on `%s'"),
2701 bfd_get_archive_filename (ibfd
));
2705 if (do_elf_stt_common
)
2707 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
2708 bfd_get_archive_filename (ibfd
));
2714 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
2715 bfd_get_archive_filename (ibfd
), bfd_get_target (ibfd
),
2716 bfd_get_filename (obfd
), bfd_get_target (obfd
));
2725 start
= bfd_get_start_address (ibfd
);
2726 start
+= change_start
;
2729 /* Neither the start address nor the flags
2730 need to be set for a core file. */
2731 if (bfd_get_format (obfd
) != bfd_core
)
2735 flags
= bfd_get_file_flags (ibfd
);
2736 flags
|= bfd_flags_to_set
;
2737 flags
&= ~bfd_flags_to_clear
;
2738 flags
&= bfd_applicable_file_flags (obfd
);
2740 if (strip_symbols
== STRIP_ALL
)
2741 flags
&= ~HAS_RELOC
;
2743 if (!bfd_set_start_address (obfd
, start
)
2744 || !bfd_set_file_flags (obfd
, flags
))
2746 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2751 /* Copy architecture of input file to output file. */
2752 iarch
= bfd_get_arch (ibfd
);
2753 imach
= bfd_get_mach (ibfd
);
2756 if (iarch
== bfd_arch_unknown
)
2758 iarch
= input_arch
->arch
;
2759 imach
= input_arch
->mach
;
2762 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
2763 bfd_get_archive_filename (ibfd
));
2765 if (iarch
== bfd_arch_unknown
2766 && bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2767 && bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
2769 const struct elf_backend_data
*bed
= get_elf_backend_data (obfd
);
2773 if (!bfd_set_arch_mach (obfd
, iarch
, imach
)
2774 && (ibfd
->target_defaulted
2775 || bfd_get_arch (ibfd
) != bfd_get_arch (obfd
)))
2777 if (bfd_get_arch (ibfd
) == bfd_arch_unknown
)
2778 non_fatal (_("Unable to recognise the format of the input file `%s'"),
2779 bfd_get_archive_filename (ibfd
));
2781 non_fatal (_("Output file cannot represent architecture `%s'"),
2782 bfd_printable_arch_mach (bfd_get_arch (ibfd
),
2783 bfd_get_mach (ibfd
)));
2787 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
2789 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2793 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
2794 && bfd_pei_p (obfd
))
2796 /* Set up PE parameters. */
2797 pe_data_type
*pe
= pe_data (obfd
);
2799 /* Copy PE parameters before changing them. */
2800 if (bfd_get_flavour (ibfd
) == bfd_target_coff_flavour
2801 && bfd_pei_p (ibfd
))
2803 pe
->pe_opthdr
= pe_data (ibfd
)->pe_opthdr
;
2806 pe
->timestamp
= pe_data (ibfd
)->coff
.timestamp
;
2811 if (pe_file_alignment
!= (bfd_vma
) -1)
2812 pe
->pe_opthdr
.FileAlignment
= pe_file_alignment
;
2814 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
2816 if (pe_heap_commit
!= (bfd_vma
) -1)
2817 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_commit
;
2819 if (pe_heap_reserve
!= (bfd_vma
) -1)
2820 pe
->pe_opthdr
.SizeOfHeapCommit
= pe_heap_reserve
;
2822 if (pe_image_base
!= (bfd_vma
) -1)
2823 pe
->pe_opthdr
.ImageBase
= pe_image_base
;
2825 if (pe_section_alignment
!= (bfd_vma
) -1)
2826 pe
->pe_opthdr
.SectionAlignment
= pe_section_alignment
;
2828 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
2830 if (pe_stack_commit
!= (bfd_vma
) -1)
2831 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_commit
;
2833 if (pe_stack_reserve
!= (bfd_vma
) -1)
2834 pe
->pe_opthdr
.SizeOfStackCommit
= pe_stack_reserve
;
2836 if (pe_subsystem
!= -1)
2837 pe
->pe_opthdr
.Subsystem
= pe_subsystem
;
2839 if (pe_major_subsystem_version
!= -1)
2840 pe
->pe_opthdr
.MajorSubsystemVersion
= pe_major_subsystem_version
;
2842 if (pe_minor_subsystem_version
!= -1)
2843 pe
->pe_opthdr
.MinorSubsystemVersion
= pe_minor_subsystem_version
;
2845 if (pe_file_alignment
> pe_section_alignment
)
2847 non_fatal (_("warning: file alignment (0x%" PRIx64
2848 ") > section alignment (0x%" PRIx64
")"),
2849 (uint64_t) pe_file_alignment
,
2850 (uint64_t) pe_section_alignment
);
2856 if (osympp
!= isympp
)
2862 symsize
= bfd_get_symtab_upper_bound (ibfd
);
2865 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2869 osympp
= isympp
= (asymbol
**) xmalloc (symsize
);
2870 symcount
= bfd_canonicalize_symtab (ibfd
, isympp
);
2873 bfd_nonfatal_message (NULL
, ibfd
, NULL
, NULL
);
2876 /* PR 17512: file: d6323821
2877 If the symbol table could not be loaded do not pretend that we have
2878 any symbols. This trips us up later on when we load the relocs. */
2882 osympp
= isympp
= NULL
;
2885 /* BFD mandates that all output sections be created and sizes set before
2886 any output is done. Thus, we traverse all sections multiple times. */
2887 bfd_map_over_sections (ibfd
, setup_section
, obfd
);
2889 if (!extract_symbol
)
2890 setup_bfd_headers (ibfd
, obfd
);
2892 if (add_sections
!= NULL
)
2894 struct section_add
*padd
;
2895 struct section_list
*pset
;
2897 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
2901 pset
= find_section_list (padd
->name
, false,
2902 SECTION_CONTEXT_SET_FLAGS
);
2905 flags
= pset
->flags
| SEC_HAS_CONTENTS
;
2906 flags
= check_new_section_flags (flags
, obfd
, padd
->name
);
2909 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DATA
;
2911 /* bfd_make_section_with_flags() does not return very helpful
2912 error codes, so check for the most likely user error first. */
2913 if (bfd_get_section_by_name (obfd
, padd
->name
))
2915 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2916 _("can't add section '%s'"), padd
->name
);
2921 /* We use LINKER_CREATED here so that the backend hooks
2922 will create any special section type information,
2923 instead of presuming we know what we're doing merely
2924 because we set the flags. */
2925 padd
->section
= bfd_make_section_with_flags
2926 (obfd
, padd
->name
, flags
| SEC_LINKER_CREATED
);
2927 if (padd
->section
== NULL
)
2929 bfd_nonfatal_message (NULL
, obfd
, NULL
,
2930 _("can't create section `%s'"),
2936 if (!bfd_set_section_size (padd
->section
, padd
->size
))
2938 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2942 pset
= find_section_list (padd
->name
, false,
2943 SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
);
2945 && !bfd_set_section_vma (padd
->section
, pset
->vma_val
))
2947 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2951 pset
= find_section_list (padd
->name
, false,
2952 SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
);
2955 padd
->section
->lma
= pset
->lma_val
;
2957 if (!bfd_set_section_alignment
2958 (padd
->section
, bfd_section_alignment (padd
->section
)))
2960 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
2967 if (update_sections
!= NULL
)
2969 struct section_add
*pupdate
;
2971 for (pupdate
= update_sections
;
2973 pupdate
= pupdate
->next
)
2975 pupdate
->section
= bfd_get_section_by_name (ibfd
, pupdate
->name
);
2976 if (pupdate
->section
== NULL
)
2978 non_fatal (_("error: %s not found, can't be updated"), pupdate
->name
);
2982 osec
= pupdate
->section
->output_section
;
2983 if (!bfd_set_section_size (osec
, pupdate
->size
))
2985 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
2991 merged_note_section
* merged_note_sections
= NULL
;
2994 /* This palaver is necessary because we must set the output
2995 section size first, before its contents are ready. */
2996 for (osec
= ibfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
2998 if (! is_mergeable_note_section (ibfd
, osec
))
3001 /* If the section is going to be completly deleted then
3002 do not bother to merge it. */
3003 if (osec
->output_section
== NULL
)
3006 bfd_size_type size
= bfd_section_size (osec
);
3009 /* This can happen, eg when stripping a binary for a second
3010 time. See BZ 2121365 for an example. */
3013 merged_note_section
* merged
= xmalloc (sizeof * merged
);
3014 merged
->contents
= NULL
;
3015 if (! bfd_get_full_section_contents (ibfd
, osec
, & merged
->contents
))
3017 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3018 _("warning: could not load note section"));
3023 merged
->size
= merge_gnu_build_notes (ibfd
, osec
, size
,
3026 /* FIXME: Once we have read the contents in, we must write
3027 them out again. So even if the mergeing has achieved
3028 nothing we still add this entry to the merge list. */
3030 if (size
!= merged
->size
3031 && !bfd_set_section_size (osec
->output_section
, merged
->size
))
3033 bfd_nonfatal_message (NULL
, obfd
, osec
,
3034 _("warning: failed to set merged notes size"));
3035 free (merged
->contents
);
3040 /* Add section to list of merged sections. */
3042 merged
->next
= merged_note_sections
;
3043 merged_note_sections
= merged
;
3047 if (dump_sections
!= NULL
)
3049 struct section_add
* pdump
;
3051 for (pdump
= dump_sections
; pdump
!= NULL
; pdump
= pdump
->next
)
3056 osec
= bfd_get_section_by_name (ibfd
, pdump
->name
);
3059 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3060 _("can't dump section '%s' - it does not exist"),
3065 if ((bfd_section_flags (osec
) & SEC_HAS_CONTENTS
) == 0)
3067 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3068 _("can't dump section - it has no contents"));
3072 bfd_size_type size
= bfd_section_size (osec
);
3073 /* Note - we allow the dumping of zero-sized sections,
3074 creating an empty file. */
3076 f
= fopen (pdump
->filename
, FOPEN_WB
);
3079 bfd_nonfatal_message (pdump
->filename
, NULL
, NULL
,
3080 _("could not open section dump file"));
3084 if (bfd_malloc_and_get_section (ibfd
, osec
, &contents
))
3086 if (size
!= 0 && fwrite (contents
, 1, size
, f
) != size
)
3088 non_fatal (_("error writing section contents to %s (error: %s)"),
3097 bfd_nonfatal_message (NULL
, ibfd
, osec
,
3098 _("could not retrieve section contents"));
3105 if (gnu_debuglink_filename
!= NULL
)
3107 /* PR 15125: Give a helpful warning message if
3108 the debuglink section already exists, and
3109 allow the rest of the copy to complete. */
3110 if (bfd_get_section_by_name (obfd
, ".gnu_debuglink"))
3112 non_fatal (_("%s: debuglink section already exists"),
3113 bfd_get_filename (ibfd
));
3114 gnu_debuglink_filename
= NULL
;
3118 gnu_debuglink_section
= bfd_create_gnu_debuglink_section
3119 (obfd
, gnu_debuglink_filename
);
3121 if (gnu_debuglink_section
== NULL
)
3123 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3124 _("cannot create debug link section `%s'"),
3125 gnu_debuglink_filename
);
3129 /* Special processing for PE format files. We
3130 have no way to distinguish PE from COFF here. */
3131 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
)
3133 bfd_vma debuglink_vma
;
3134 asection
* highest_section
;
3136 /* The PE spec requires that all sections be adjacent and sorted
3137 in ascending order of VMA. It also specifies that debug
3138 sections should be last. This is despite the fact that debug
3139 sections are not loaded into memory and so in theory have no
3142 This means that the debuglink section must be given a non-zero
3143 VMA which makes it contiguous with other debug sections. So
3144 walk the current section list, find the section with the
3145 highest VMA and start the debuglink section after that one. */
3146 for (osec
= obfd
->sections
, highest_section
= NULL
;
3150 && (highest_section
== NULL
3151 || osec
->vma
> highest_section
->vma
))
3152 highest_section
= osec
;
3154 if (highest_section
)
3155 debuglink_vma
= BFD_ALIGN (highest_section
->vma
3156 + highest_section
->size
,
3157 /* FIXME: We ought to be using
3158 COFF_PAGE_SIZE here or maybe
3159 bfd_section_alignment() (if it
3160 was set) but since this is for PE
3161 and we know the required alignment
3162 it is easier just to hard code it. */
3165 /* Umm, not sure what to do in this case. */
3166 debuglink_vma
= 0x1000;
3168 bfd_set_section_vma (gnu_debuglink_section
, debuglink_vma
);
3173 num_sec
= bfd_count_sections (obfd
);
3175 && (gap_fill_set
|| pad_to_set
))
3179 /* We must fill in gaps between the sections and/or we must pad
3180 the last section to a specified address. We do this by
3181 grabbing a list of the sections, sorting them by VMA, and
3182 increasing the section sizes as required to fill the gaps.
3183 We write out the gap contents below. */
3185 osections
= xmalloc (num_sec
* sizeof (*osections
));
3187 bfd_map_over_sections (obfd
, get_sections
, &set
);
3189 qsort (osections
, num_sec
, sizeof (*osections
), compare_section_lma
);
3191 gaps
= xmalloc (num_sec
* sizeof (*gaps
));
3192 memset (gaps
, 0, num_sec
* sizeof (*gaps
));
3196 for (i
= 0; i
< num_sec
- 1; i
++)
3199 bfd_size_type size
; /* Octets. */
3200 bfd_vma gap_start
, gap_stop
; /* Octets. */
3201 unsigned int opb1
= bfd_octets_per_byte (obfd
, osections
[i
]);
3202 unsigned int opb2
= bfd_octets_per_byte (obfd
, osections
[i
+1]);
3204 flags
= bfd_section_flags (osections
[i
]);
3205 if ((flags
& SEC_HAS_CONTENTS
) == 0
3206 || (flags
& SEC_LOAD
) == 0)
3209 size
= bfd_section_size (osections
[i
]);
3210 gap_start
= bfd_section_lma (osections
[i
]) * opb1
+ size
;
3211 gap_stop
= bfd_section_lma (osections
[i
+ 1]) * opb2
;
3212 if (gap_start
< gap_stop
)
3214 if (!bfd_set_section_size (osections
[i
],
3215 size
+ (gap_stop
- gap_start
)))
3217 bfd_nonfatal_message (NULL
, obfd
, osections
[i
],
3218 _("Can't fill gap after section"));
3222 gaps
[i
] = gap_stop
- gap_start
;
3223 if (max_gap
< gap_stop
- gap_start
)
3224 max_gap
= gap_stop
- gap_start
;
3231 bfd_vma lma
; /* Octets. */
3232 bfd_size_type size
; /* Octets. */
3233 unsigned int opb
= bfd_octets_per_byte (obfd
, osections
[num_sec
- 1]);
3234 bfd_vma _pad_to
= pad_to
* opb
;
3236 lma
= bfd_section_lma (osections
[num_sec
- 1]) * opb
;
3237 size
= bfd_section_size (osections
[num_sec
- 1]);
3238 if (lma
+ size
< _pad_to
)
3240 if (!bfd_set_section_size (osections
[num_sec
- 1], _pad_to
- lma
))
3242 bfd_nonfatal_message (NULL
, obfd
, osections
[num_sec
- 1],
3243 _("can't add padding"));
3248 gaps
[num_sec
- 1] = _pad_to
- (lma
+ size
);
3249 if (max_gap
< _pad_to
- (lma
+ size
))
3250 max_gap
= _pad_to
- (lma
+ size
);
3256 /* Symbol filtering must happen after the output sections
3257 have been created, but before their contents are set. */
3259 if (convert_debugging
)
3260 dhandle
= read_debugging_info (ibfd
, isympp
, symcount
, false);
3262 if ((obfd
->flags
& (EXEC_P
| DYNAMIC
)) != 0
3263 && (obfd
->flags
& HAS_RELOC
) == 0)
3265 if (bfd_keep_unused_section_symbols (obfd
) || keep_section_symbols
)
3267 /* Non-relocatable inputs may not have the unused section
3268 symbols. Mark all section symbols as used to generate
3271 for (asect
= obfd
->sections
; asect
!= NULL
; asect
= asect
->next
)
3273 asect
->symbol
->flags
|= BSF_SECTION_SYM_USED
;
3277 /* Non-relocatable inputs may have the unused section symbols.
3278 Mark all section symbols as unused to excluded them. */
3280 for (s
= 0; s
< symcount
; s
++)
3281 if ((isympp
[s
]->flags
& BSF_SECTION_SYM_USED
))
3282 isympp
[s
]->flags
&= ~BSF_SECTION_SYM_USED
;
3286 if (strip_symbols
== STRIP_DEBUG
3287 || strip_symbols
== STRIP_ALL
3288 || strip_symbols
== STRIP_UNNEEDED
3289 || strip_symbols
== STRIP_NONDEBUG
3290 || strip_symbols
== STRIP_DWO
3291 || strip_symbols
== STRIP_NONDWO
3292 || discard_locals
!= LOCALS_UNDEF
3294 || htab_elements (strip_specific_htab
) != 0
3295 || htab_elements (keep_specific_htab
) != 0
3296 || htab_elements (localize_specific_htab
) != 0
3297 || htab_elements (globalize_specific_htab
) != 0
3298 || htab_elements (keepglobal_specific_htab
) != 0
3299 || htab_elements (weaken_specific_htab
) != 0
3300 || htab_elements (redefine_specific_htab
) != 0
3301 || prefix_symbols_string
3304 || convert_debugging
3305 || change_leading_char
3306 || remove_leading_char
3307 || section_rename_list
3311 /* Mark symbols used in output relocations so that they
3312 are kept, even if they are local labels or static symbols.
3314 Note we iterate over the input sections examining their
3315 relocations since the relocations for the output sections
3316 haven't been set yet. mark_symbols_used_in_relocations will
3317 ignore input sections which have no corresponding output
3319 if (strip_symbols
!= STRIP_ALL
)
3321 bfd_set_error (bfd_error_no_error
);
3322 bfd_map_over_sections (ibfd
,
3323 mark_symbols_used_in_relocations
,
3325 if (bfd_get_error () != bfd_error_no_error
)
3332 osympp
= (asymbol
**) xmalloc ((symcount
+ add_symbols
+ 1) * sizeof (asymbol
*));
3333 symcount
= filter_symbols (ibfd
, obfd
, osympp
, isympp
, symcount
);
3336 if (convert_debugging
&& dhandle
!= NULL
)
3340 res
= write_debugging_info (obfd
, dhandle
, &symcount
, &osympp
);
3343 dhandle
= NULL
; /* Paranoia... */
3352 bfd_set_symtab (obfd
, osympp
, symcount
);
3354 /* This has to happen before section positions are set. */
3355 bfd_map_over_sections (ibfd
, copy_relocations_in_section
, obfd
);
3359 /* This has to happen after the symbol table has been set. */
3360 bfd_map_over_sections (ibfd
, copy_section
, obfd
);
3364 if (add_sections
!= NULL
)
3366 struct section_add
*padd
;
3368 for (padd
= add_sections
; padd
!= NULL
; padd
= padd
->next
)
3370 if (! bfd_set_section_contents (obfd
, padd
->section
, padd
->contents
,
3373 bfd_nonfatal_message (NULL
, obfd
, padd
->section
, NULL
);
3379 if (update_sections
!= NULL
)
3381 struct section_add
*pupdate
;
3383 for (pupdate
= update_sections
;
3385 pupdate
= pupdate
->next
)
3387 osec
= pupdate
->section
->output_section
;
3388 if (! bfd_set_section_contents (obfd
, osec
, pupdate
->contents
,
3391 bfd_nonfatal_message (NULL
, obfd
, osec
, NULL
);
3397 if (merged_note_sections
!= NULL
)
3399 merged_note_section
* merged
= NULL
;
3401 for (osec
= obfd
->sections
; osec
!= NULL
; osec
= osec
->next
)
3403 if (! is_mergeable_note_section (obfd
, osec
))
3407 merged
= merged_note_sections
;
3409 /* It is likely that output sections are in the same order
3410 as the input sections, but do not assume that this is
3412 if (merged
->sec
->output_section
!= osec
)
3414 for (merged
= merged_note_sections
;
3416 merged
= merged
->next
)
3417 if (merged
->sec
->output_section
== osec
)
3422 bfd_nonfatal_message
3424 _("error: failed to locate merged notes"));
3429 if (merged
->contents
== NULL
)
3431 bfd_nonfatal_message
3433 _("error: failed to merge notes"));
3437 if (! bfd_set_section_contents (obfd
, osec
, merged
->contents
, 0,
3440 bfd_nonfatal_message
3442 _("error: failed to copy merged notes into output"));
3446 merged
= merged
->next
;
3449 /* Free the memory. */
3450 merged_note_section
* next
;
3451 for (merged
= merged_note_sections
; merged
!= NULL
; merged
= next
)
3453 next
= merged
->next
;
3454 free (merged
->contents
);
3458 else if (merge_notes
&& ! is_strip
)
3459 non_fatal (_("%s: Could not find any mergeable note sections"),
3460 bfd_get_filename (ibfd
));
3462 if (gnu_debuglink_filename
!= NULL
)
3464 if (! bfd_fill_in_gnu_debuglink_section
3465 (obfd
, gnu_debuglink_section
, gnu_debuglink_filename
))
3467 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3468 _("cannot fill debug link section `%s'"),
3469 gnu_debuglink_filename
);
3478 /* Fill in the gaps. */
3481 buf
= (bfd_byte
*) xmalloc (max_gap
);
3482 memset (buf
, gap_fill
, max_gap
);
3484 for (i
= 0; i
< num_sec
; i
++)
3492 off
= bfd_section_size (osections
[i
]) - left
;
3503 if (! bfd_set_section_contents (obfd
, osections
[i
], buf
,
3506 bfd_nonfatal_message (NULL
, obfd
, osections
[i
], NULL
);
3522 /* Allow the BFD backend to copy any private data it understands
3523 from the input BFD to the output BFD. This is done last to
3524 permit the routine to look at the filtered symbol table, which is
3525 important for the ECOFF code at least. */
3526 if (! bfd_copy_private_bfd_data (ibfd
, obfd
))
3528 bfd_nonfatal_message (NULL
, obfd
, NULL
,
3529 _("error copying private BFD data"));
3533 /* Switch to the alternate machine code. We have to do this at the
3534 very end, because we only initialize the header when we create
3535 the first section. */
3536 if (use_alt_mach_code
!= 0)
3538 if (! bfd_alt_mach_code (obfd
, use_alt_mach_code
))
3540 non_fatal (_("this target does not support %lu alternative machine codes"),
3542 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
3544 non_fatal (_("treating that number as an absolute e_machine value instead"));
3545 elf_elfheader (obfd
)->e_machine
= use_alt_mach_code
;
3548 non_fatal (_("ignoring the alternative value"));
3555 /* Read each archive element in turn from IBFD, copy the
3556 contents to temp file, and keep the temp file handle.
3557 If 'force_output_target' is TRUE then make sure that
3558 all elements in the new archive are of the type
3562 copy_archive (bfd
*ibfd
, bfd
*obfd
, const char *output_target
,
3563 bool force_output_target
,
3564 const bfd_arch_info_type
*input_arch
)
3568 struct name_list
*next
;
3572 bfd
**ptr
= &obfd
->archive_head
;
3577 /* PR 24281: It is not clear what should happen when copying a thin archive.
3578 One part is straight forward - if the output archive is in a different
3579 directory from the input archive then any relative paths in the library
3580 should be adjusted to the new location. But if any transformation
3581 options are active (eg strip, rename, add, etc) then the implication is
3582 that these should be applied to the files pointed to by the archive.
3583 But since objcopy is not destructive, this means that new files must be
3584 created, and there is no guidance for the names of the new files. (Plus
3585 this conflicts with one of the goals of thin libraries - only taking up
3586 a minimal amount of space in the file system).
3588 So for now we fail if an attempt is made to copy such libraries. */
3589 if (ibfd
->is_thin_archive
)
3592 bfd_set_error (bfd_error_invalid_operation
);
3593 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
3594 _("sorry: copying thin archives is not currently supported"));
3598 /* Make a temp directory to hold the contents. */
3599 dir
= make_tempdir (bfd_get_filename (obfd
));
3601 fatal (_("cannot create tempdir for archive copying (error: %s)"),
3604 if (strip_symbols
== STRIP_ALL
)
3605 obfd
->has_armap
= false;
3607 obfd
->has_armap
= ibfd
->has_armap
;
3608 obfd
->is_thin_archive
= ibfd
->is_thin_archive
;
3611 obfd
->flags
|= BFD_DETERMINISTIC_OUTPUT
;
3615 this_element
= bfd_openr_next_archived_file (ibfd
, NULL
);
3617 if (!bfd_set_format (obfd
, bfd_get_format (ibfd
)))
3620 bfd_nonfatal_message (NULL
, obfd
, NULL
, NULL
);
3621 goto cleanup_and_exit
;
3624 while (!status
&& this_element
!= NULL
)
3630 int stat_status
= 0;
3634 /* PR binutils/17533: Do not allow directory traversal
3635 outside of the current directory tree by archive members. */
3636 if (! is_valid_archive_path (bfd_get_filename (this_element
)))
3638 non_fatal (_("illegal pathname found in archive member: %s"),
3639 bfd_get_filename (this_element
));
3641 goto cleanup_and_exit
;
3644 /* Create an output file for this member. */
3645 output_name
= concat (dir
, "/",
3646 bfd_get_filename (this_element
), (char *) 0);
3648 /* If the file already exists, make another temp dir. */
3649 if (stat (output_name
, &buf
) >= 0)
3651 char * tmpdir
= make_tempdir (output_name
);
3656 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
3659 goto cleanup_and_exit
;
3662 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3667 output_name
= concat (tmpdir
, "/",
3668 bfd_get_filename (this_element
), (char *) 0);
3673 memset (&buf
, 0, sizeof (buf
));
3674 stat_status
= bfd_stat_arch_elt (this_element
, &buf
);
3676 if (stat_status
!= 0)
3677 non_fatal (_("internal stat error on %s"),
3678 bfd_get_filename (this_element
));
3681 l
= (struct name_list
*) xmalloc (sizeof (struct name_list
));
3682 l
->name
= output_name
;
3687 ok_object
= bfd_check_format (this_element
, bfd_object
);
3689 bfd_nonfatal_message (NULL
, this_element
, NULL
,
3690 _("Unable to recognise the format of file"));
3692 /* PR binutils/3110: Cope with archives
3693 containing multiple target types. */
3694 if (force_output_target
|| !ok_object
)
3695 output_bfd
= bfd_openw (output_name
, output_target
);
3697 output_bfd
= bfd_openw (output_name
, bfd_get_target (this_element
));
3699 if (output_bfd
== NULL
)
3701 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3703 goto cleanup_and_exit
;
3708 del
= !copy_object (this_element
, output_bfd
, input_arch
);
3710 if (del
&& bfd_get_arch (this_element
) == bfd_arch_unknown
)
3711 /* Try again as an unknown object file. */
3716 del
= !copy_unknown_object (this_element
, output_bfd
);
3718 if (!(ok_object
&& !del
&& !status
3719 ? bfd_close
: bfd_close_all_done
) (output_bfd
))
3721 bfd_nonfatal_message (output_name
, NULL
, NULL
, NULL
);
3722 /* Error in new object file. Don't change archive. */
3728 unlink (output_name
);
3733 if (preserve_dates
&& stat_status
== 0)
3734 set_times (output_name
, &buf
);
3736 /* Open the newly output file and attach to our list. */
3737 output_bfd
= bfd_openr (output_name
, output_target
);
3739 l
->obfd
= output_bfd
;
3742 ptr
= &output_bfd
->archive_next
;
3744 last_element
= this_element
;
3746 this_element
= bfd_openr_next_archived_file (ibfd
, last_element
);
3748 bfd_close (last_element
);
3753 filename
= xstrdup (bfd_get_filename (obfd
));
3754 if (!(status
== 0 ? bfd_close
: bfd_close_all_done
) (obfd
))
3757 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3761 filename
= xstrdup (bfd_get_filename (ibfd
));
3762 if (!bfd_close (ibfd
))
3765 bfd_nonfatal_message (filename
, NULL
, NULL
, NULL
);
3770 /* Delete all the files that we opened. */
3772 struct name_list
* next
;
3774 for (l
= list
; l
!= NULL
; l
= next
)
3776 if (l
->obfd
== NULL
)
3780 bfd_close (l
->obfd
);
3783 free ((char *) l
->name
);
3793 /* The top-level control. */
3796 copy_file (const char *input_filename
, const char *output_filename
, int ofd
,
3797 struct stat
*in_stat
, const char *input_target
,
3798 const char *output_target
, const bfd_arch_info_type
*input_arch
)
3801 char **obj_matching
;
3802 char **core_matching
;
3803 off_t size
= get_file_size (input_filename
);
3808 non_fatal (_("error: the input file '%s' is empty"),
3814 /* To allow us to do "strip *" without dying on the first
3815 non-object file, failures are nonfatal. */
3816 ibfd
= bfd_openr (input_filename
, input_target
);
3817 if (ibfd
== NULL
|| bfd_stat (ibfd
, in_stat
) != 0)
3819 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3824 switch (do_debug_sections
)
3826 case compress_gnu_zlib
:
3827 ibfd
->flags
|= BFD_COMPRESS
;
3831 /* The above two cases ought to just set BFD_COMPRESS for non-ELF
3832 but we can't tell whether a file is ELF or not until after
3833 bfd_check_format_matches. FIXME maybe: decide compression
3834 style in BFD after bfd_check_format_matches. */
3835 case compress_gabi_zlib
:
3836 ibfd
->flags
|= BFD_COMPRESS
| BFD_COMPRESS_GABI
;
3839 ibfd
->flags
|= BFD_COMPRESS
| BFD_COMPRESS_GABI
| BFD_COMPRESS_ZSTD
;
3841 fatal (_ ("--compress-debug-sections=zstd: binutils is not built with "
3846 ibfd
->flags
|= BFD_DECOMPRESS
;
3852 switch (do_elf_stt_common
)
3854 case elf_stt_common
:
3855 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
| BFD_USE_ELF_STT_COMMON
;
3858 case no_elf_stt_common
:
3859 ibfd
->flags
|= BFD_CONVERT_ELF_COMMON
;
3865 if (bfd_check_format (ibfd
, bfd_archive
))
3867 bool force_output_target
;
3870 /* bfd_get_target does not return the correct value until
3871 bfd_check_format succeeds. */
3872 if (output_target
== NULL
)
3874 output_target
= bfd_get_target (ibfd
);
3875 force_output_target
= false;
3878 force_output_target
= true;
3881 obfd
= bfd_fdopenw (output_filename
, output_target
, ofd
);
3883 obfd
= bfd_openw (output_filename
, output_target
);
3888 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3893 if (gnu_debuglink_filename
!= NULL
)
3895 non_fatal (_("--add-gnu-debuglink ignored for archive %s"),
3896 bfd_get_filename (ibfd
));
3897 gnu_debuglink_filename
= NULL
;
3900 copy_archive (ibfd
, obfd
, output_target
, force_output_target
, input_arch
);
3902 else if (bfd_check_format_matches (ibfd
, bfd_object
, &obj_matching
))
3907 /* bfd_get_target does not return the correct value until
3908 bfd_check_format succeeds. */
3909 if (output_target
== NULL
)
3910 output_target
= bfd_get_target (ibfd
);
3913 obfd
= bfd_fdopenw (output_filename
, output_target
, ofd
);
3915 obfd
= bfd_openw (output_filename
, output_target
);
3920 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3925 if (! copy_object (ibfd
, obfd
, input_arch
))
3928 /* PR 17512: file: 0f15796a.
3929 If the file could not be copied it may not be in a writeable
3930 state. So use bfd_close_all_done to avoid the possibility of
3931 writing uninitialised data into the file. */
3932 if (! (status
? bfd_close_all_done (obfd
) : bfd_close (obfd
)))
3935 bfd_nonfatal_message (output_filename
, NULL
, NULL
, NULL
);
3938 if (!bfd_close (ibfd
))
3941 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3946 bfd_error_type obj_error
= bfd_get_error ();
3947 bfd_error_type core_error
;
3949 if (bfd_check_format_matches (ibfd
, bfd_core
, &core_matching
))
3951 /* This probably can't happen.. */
3952 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3953 free (obj_matching
);
3957 core_error
= bfd_get_error ();
3958 /* Report the object error in preference to the core error. */
3959 if (obj_error
!= core_error
)
3960 bfd_set_error (obj_error
);
3962 bfd_nonfatal_message (input_filename
, NULL
, NULL
, NULL
);
3964 if (obj_error
== bfd_error_file_ambiguously_recognized
)
3965 list_matching_formats (obj_matching
);
3966 if (core_error
== bfd_error_file_ambiguously_recognized
)
3967 list_matching_formats (core_matching
);
3973 /* Add a name to the section renaming list. */
3976 add_section_rename (const char * old_name
, const char * new_name
,
3979 section_rename
* srename
;
3981 /* Check for conflicts first. */
3982 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
3983 if (strcmp (srename
->old_name
, old_name
) == 0)
3985 /* Silently ignore duplicate definitions. */
3986 if (strcmp (srename
->new_name
, new_name
) == 0
3987 && srename
->flags
== flags
)
3990 fatal (_("Multiple renames of section %s"), old_name
);
3993 srename
= (section_rename
*) xmalloc (sizeof (* srename
));
3995 srename
->old_name
= old_name
;
3996 srename
->new_name
= new_name
;
3997 srename
->flags
= flags
;
3998 srename
->next
= section_rename_list
;
4000 section_rename_list
= srename
;
4003 /* Check the section rename list for a new name of the input section
4004 called OLD_NAME. Returns the new name if one is found and sets
4005 RETURNED_FLAGS if non-NULL to the flags to be used for this section. */
4008 find_section_rename (const char *old_name
, flagword
*returned_flags
)
4010 const section_rename
*srename
;
4012 for (srename
= section_rename_list
; srename
!= NULL
; srename
= srename
->next
)
4013 if (strcmp (srename
->old_name
, old_name
) == 0)
4015 if (returned_flags
!= NULL
&& srename
->flags
!= (flagword
) -1)
4016 *returned_flags
= srename
->flags
;
4018 return srename
->new_name
;
4024 /* Once each of the sections is copied, we may still need to do some
4025 finalization work for private section headers. Do that here. */
4028 setup_bfd_headers (bfd
*ibfd
, bfd
*obfd
)
4030 /* Allow the BFD backend to copy any private data it understands
4031 from the input section to the output section. */
4032 if (! bfd_copy_private_header_data (ibfd
, obfd
))
4035 bfd_nonfatal_message (NULL
, ibfd
, NULL
,
4036 _("error in private header data"));
4040 /* All went well. */
4044 /* Create a section in OBFD with the same
4045 name and attributes as ISECTION in IBFD. */
4048 setup_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4050 bfd
*obfd
= (bfd
*) obfdarg
;
4051 struct section_list
*p
;
4057 const char *err
= NULL
;
4059 const char * new_name
;
4060 char *prefix
= NULL
;
4062 unsigned int alignment
;
4064 if (is_strip_section (ibfd
, isection
))
4067 /* Get the, possibly new, name of the output section. */
4068 name
= bfd_section_name (isection
);
4069 flags
= bfd_section_flags (isection
);
4070 if (bfd_get_flavour (ibfd
) != bfd_get_flavour (obfd
))
4072 flags
&= bfd_applicable_section_flags (ibfd
);
4073 flags
&= bfd_applicable_section_flags (obfd
);
4075 new_name
= find_section_rename (name
, &flags
);
4076 if (new_name
!= name
)
4079 flags
= check_new_section_flags (flags
, obfd
, name
);
4082 /* Prefix sections. */
4083 if (prefix_alloc_sections_string
4084 && (bfd_section_flags (isection
) & SEC_ALLOC
) != 0)
4085 prefix
= prefix_alloc_sections_string
;
4086 else if (prefix_sections_string
)
4087 prefix
= prefix_sections_string
;
4093 n
= (char *) xmalloc (strlen (prefix
) + strlen (name
) + 1);
4099 make_nobits
= false;
4101 p
= find_section_list (bfd_section_name (isection
), false,
4102 SECTION_CONTEXT_SET_FLAGS
);
4105 flags
= p
->flags
| (flags
& (SEC_HAS_CONTENTS
| SEC_RELOC
));
4106 flags
= check_new_section_flags (flags
, obfd
, bfd_section_name (isection
));
4108 else if (strip_symbols
== STRIP_NONDEBUG
4109 && (flags
& (SEC_ALLOC
| SEC_GROUP
)) != 0
4110 && !is_nondebug_keep_contents_section (ibfd
, isection
))
4112 flagword clr
= SEC_HAS_CONTENTS
| SEC_LOAD
| SEC_GROUP
;
4114 if (bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4116 /* PR 29532: Copy group sections intact as otherwise we end up with
4117 empty groups. This prevents separate debug info files from
4118 being used with GDB, if they were based upon files that
4119 originally contained groups. */
4120 if (flags
& SEC_GROUP
)
4125 /* Twiddle the input section flags so that it seems to
4126 elf.c:copy_private_bfd_data that section flags have not
4127 changed between input and output sections. This hack
4128 prevents wholesale rewriting of the program headers. */
4129 isection
->flags
&= ~clr
;
4134 if (!bfd_convert_section_setup (ibfd
, isection
, obfd
, &name
, &size
))
4137 err
= _("failed to create output section");
4141 osection
= bfd_make_section_anyway_with_flags (obfd
, name
, flags
);
4143 if (osection
== NULL
)
4145 err
= _("failed to create output section");
4150 size
= (size
+ interleave
- 1) / interleave
* copy_width
;
4151 else if (extract_symbol
)
4153 if (!bfd_set_section_size (osection
, size
))
4154 err
= _("failed to set size");
4156 vma
= bfd_section_vma (isection
);
4157 p
= find_section_list (bfd_section_name (isection
), false,
4158 SECTION_CONTEXT_ALTER_VMA
| SECTION_CONTEXT_SET_VMA
);
4161 if (p
->context
& SECTION_CONTEXT_SET_VMA
)
4167 vma
+= change_section_address
;
4169 if (!bfd_set_section_vma (osection
, vma
))
4170 err
= _("failed to set vma");
4172 lma
= isection
->lma
;
4173 p
= find_section_list (bfd_section_name (isection
), false,
4174 SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_SET_LMA
);
4177 if (p
->context
& SECTION_CONTEXT_ALTER_LMA
)
4183 lma
+= change_section_address
;
4185 osection
->lma
= lma
;
4187 p
= find_section_list (bfd_section_name (isection
), false,
4188 SECTION_CONTEXT_SET_ALIGNMENT
);
4190 alignment
= p
->alignment
;
4192 alignment
= bfd_section_alignment (isection
);
4194 /* FIXME: This is probably not enough. If we change the LMA we
4195 may have to recompute the header for the file as well. */
4196 if (!bfd_set_section_alignment (osection
, alignment
))
4197 err
= _("failed to set alignment");
4199 /* Copy merge entity size. */
4200 osection
->entsize
= isection
->entsize
;
4202 /* Copy compress status. */
4203 osection
->compress_status
= isection
->compress_status
;
4205 /* This used to be mangle_section; we do here to avoid using
4206 bfd_get_section_by_name since some formats allow multiple
4207 sections with the same name. */
4208 isection
->output_section
= osection
;
4209 isection
->output_offset
= 0;
4211 if ((isection
->flags
& SEC_GROUP
) != 0)
4213 asymbol
*gsym
= group_signature (isection
);
4217 gsym
->flags
|= BSF_KEEP
;
4218 if (bfd_get_flavour (ibfd
) == bfd_target_elf_flavour
)
4219 elf_group_id (isection
) = gsym
;
4223 /* Allow the BFD backend to copy any private data it understands
4224 from the input section to the output section. */
4225 if (!bfd_copy_private_section_data (ibfd
, isection
, obfd
, osection
))
4226 err
= _("failed to copy private data");
4229 elf_section_type (osection
) = SHT_NOBITS
;
4236 bfd_nonfatal_message (NULL
, obfd
, osection
, err
);
4239 /* Return TRUE if input section ISECTION should be skipped. */
4242 skip_section (bfd
*ibfd
, sec_ptr isection
, bool skip_copy
)
4248 /* If we have already failed earlier on,
4249 do not keep on generating complaints now. */
4256 if (is_strip_section (ibfd
, isection
))
4259 if (is_update_section (ibfd
, isection
))
4262 /* When merging a note section we skip the copying of the contents,
4263 but not the copying of the relocs associated with the contents. */
4264 if (skip_copy
&& is_mergeable_note_section (ibfd
, isection
))
4267 flags
= bfd_section_flags (isection
);
4268 if ((flags
& SEC_GROUP
) != 0)
4271 osection
= isection
->output_section
;
4272 size
= bfd_section_size (isection
);
4274 if (size
== 0 || osection
== 0)
4280 /* Add section SECTION_PATTERN to the list of sections that will have their
4281 relocations removed. */
4284 handle_remove_relocations_option (const char *section_pattern
)
4286 find_section_list (section_pattern
, true, SECTION_CONTEXT_REMOVE_RELOCS
);
4289 /* Return TRUE if ISECTION from IBFD should have its relocations removed,
4290 otherwise return FALSE. If the user has requested that relocations be
4291 removed from a section that does not have relocations then this
4292 function will still return TRUE. */
4295 discard_relocations (bfd
*ibfd ATTRIBUTE_UNUSED
, asection
*isection
)
4297 return (find_section_list (bfd_section_name (isection
), false,
4298 SECTION_CONTEXT_REMOVE_RELOCS
) != NULL
);
4301 /* Wrapper for dealing with --remove-section (-R) command line arguments.
4302 A special case is detected here, if the user asks to remove a relocation
4303 section (one starting with ".rela" or ".rel") then this removal must
4304 be done using a different technique in a relocatable object. */
4307 handle_remove_section_option (const char *section_pattern
)
4309 find_section_list (section_pattern
, true, SECTION_CONTEXT_REMOVE
);
4310 if (startswith (section_pattern
, ".rel"))
4312 section_pattern
+= 4;
4313 if (*section_pattern
== 'a')
4315 if (*section_pattern
)
4316 handle_remove_relocations_option (section_pattern
);
4318 sections_removed
= true;
4321 /* Copy relocations in input section ISECTION of IBFD to an output
4322 section with the same name in OBFDARG. If stripping then don't
4323 copy any relocation info. */
4326 copy_relocations_in_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4328 bfd
*obfd
= (bfd
*) obfdarg
;
4334 if (skip_section (ibfd
, isection
, false))
4337 osection
= isection
->output_section
;
4339 /* Core files and DWO files do not need to be relocated. */
4340 if (bfd_get_format (obfd
) == bfd_core
4341 || strip_symbols
== STRIP_NONDWO
4342 || discard_relocations (ibfd
, isection
))
4346 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4350 /* Do not complain if the target does not support relocations. */
4351 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4356 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4363 bfd_set_reloc (obfd
, osection
, NULL
, 0);
4366 if (isection
->orelocation
!= NULL
)
4368 /* Some other function has already set up the output relocs
4369 for us, so scan those instead of the default relocs. */
4370 relcount
= isection
->reloc_count
;
4371 relpp
= isection
->orelocation
;
4375 relpp
= bfd_xalloc (obfd
, relsize
);
4376 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, isympp
);
4380 bfd_nonfatal_message (NULL
, ibfd
, isection
,
4381 _("relocation count is negative"));
4386 if (strip_symbols
== STRIP_ALL
)
4388 /* Remove relocations which are not in
4389 keep_strip_specific_list. */
4393 for (w_relpp
= relpp
, i
= 0; i
< relcount
; i
++)
4394 /* PR 17512: file: 9e907e0c. */
4395 if (relpp
[i
]->sym_ptr_ptr
4397 && *relpp
[i
]->sym_ptr_ptr
4398 && is_specified_symbol (bfd_asymbol_name (*relpp
[i
]->sym_ptr_ptr
),
4399 keep_specific_htab
))
4400 *w_relpp
++ = relpp
[i
];
4401 relcount
= w_relpp
- relpp
;
4405 bfd_set_reloc (obfd
, osection
, relcount
== 0 ? NULL
: relpp
, relcount
);
4409 /* Copy the data of input section ISECTION of IBFD
4410 to an output section with the same name in OBFD. */
4413 copy_section (bfd
*ibfd
, sec_ptr isection
, void *obfdarg
)
4415 bfd
*obfd
= (bfd
*) obfdarg
;
4416 struct section_list
*p
;
4420 if (skip_section (ibfd
, isection
, true))
4423 osection
= isection
->output_section
;
4424 /* The output SHF_COMPRESSED section size is different from input if
4425 ELF classes of input and output aren't the same. We can't use
4426 the output section size since --interleave will shrink the output
4427 section. Size will be updated if the section is converted. */
4428 size
= bfd_section_size (isection
);
4430 if (bfd_section_flags (isection
) & SEC_HAS_CONTENTS
4431 && bfd_section_flags (osection
) & SEC_HAS_CONTENTS
)
4433 bfd_byte
*memhunk
= NULL
;
4435 if (!bfd_get_full_section_contents (ibfd
, isection
, &memhunk
)
4436 || !bfd_convert_section_contents (ibfd
, isection
, obfd
,
4439 bfd_set_section_size (osection
, 0);
4441 bfd_nonfatal_message (NULL
, ibfd
, isection
, NULL
);
4448 /* We don't handle leftover bytes (too many possible behaviors,
4449 and we don't know what the user wants). The section length
4450 must be a multiple of the number of bytes to swap. */
4451 if ((size
% reverse_bytes
) == 0)
4456 for (i
= 0; i
< size
; i
+= reverse_bytes
)
4457 for (j
= 0; j
< (unsigned long)(reverse_bytes
/ 2); j
++)
4459 bfd_byte
*m
= (bfd_byte
*) memhunk
;
4462 m
[i
+ j
] = m
[(i
+ reverse_bytes
) - (j
+ 1)];
4463 m
[(i
+ reverse_bytes
) - (j
+ 1)] = b
;
4467 /* User must pad the section up in order to do this. */
4468 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
4469 bfd_section_name (isection
), reverse_bytes
);
4474 /* Keep only every `copy_byte'th byte in MEMHUNK. */
4475 char *from
= (char *) memhunk
+ copy_byte
;
4476 char *to
= (char *) memhunk
;
4477 char *end
= (char *) memhunk
+ size
;
4480 /* If the section address is not exactly divisible by the interleave,
4481 then we must bias the from address. If the copy_byte is less than
4482 the bias, then we must skip forward one interleave, and increment
4484 int extra
= isection
->lma
% interleave
;
4486 if (copy_byte
< extra
)
4489 for (; from
< end
; from
+= interleave
)
4490 for (i
= 0; i
< copy_width
; i
++)
4492 if (&from
[i
] >= end
)
4497 size
= (size
+ interleave
- 1 - copy_byte
) / interleave
* copy_width
;
4498 osection
->lma
/= interleave
;
4499 if (copy_byte
< extra
)
4503 if (!bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4506 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4512 else if ((p
= find_section_list (bfd_section_name (isection
),
4513 false, SECTION_CONTEXT_SET_FLAGS
)) != NULL
4514 && (p
->flags
& SEC_HAS_CONTENTS
) != 0)
4516 void *memhunk
= xmalloc (size
);
4518 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
4519 flag--they can just remove the section entirely and add it
4520 back again. However, we do permit them to turn on the
4521 SEC_HAS_CONTENTS flag, and take it to mean that the section
4522 contents should be zeroed out. */
4524 memset (memhunk
, 0, size
);
4525 if (! bfd_set_section_contents (obfd
, osection
, memhunk
, 0, size
))
4528 bfd_nonfatal_message (NULL
, obfd
, osection
, NULL
);
4536 /* Get all the sections. This is used when --gap-fill or --pad-to is
4540 get_sections (bfd
*obfd ATTRIBUTE_UNUSED
, asection
*osection
, void *secppparg
)
4542 asection
***secppp
= (asection
***) secppparg
;
4544 **secppp
= osection
;
4548 /* Sort sections by LMA. This is called via qsort, and is used when
4549 --gap-fill or --pad-to is used. We force non loadable or empty
4550 sections to the front, where they are easier to ignore. */
4553 compare_section_lma (const void *arg1
, const void *arg2
)
4555 const asection
*sec1
= *(const asection
**) arg1
;
4556 const asection
*sec2
= *(const asection
**) arg2
;
4557 flagword flags1
, flags2
;
4559 /* Sort non loadable sections to the front. */
4560 flags1
= sec1
->flags
;
4561 flags2
= sec2
->flags
;
4562 if ((flags1
& SEC_HAS_CONTENTS
) == 0
4563 || (flags1
& SEC_LOAD
) == 0)
4565 if ((flags2
& SEC_HAS_CONTENTS
) != 0
4566 && (flags2
& SEC_LOAD
) != 0)
4571 if ((flags2
& SEC_HAS_CONTENTS
) == 0
4572 || (flags2
& SEC_LOAD
) == 0)
4576 /* Sort sections by LMA. */
4577 if (sec1
->lma
> sec2
->lma
)
4579 if (sec1
->lma
< sec2
->lma
)
4582 /* Sort sections with the same LMA by size. */
4583 if (bfd_section_size (sec1
) > bfd_section_size (sec2
))
4585 if (bfd_section_size (sec1
) < bfd_section_size (sec2
))
4588 if (sec1
->id
> sec2
->id
)
4590 if (sec1
->id
< sec2
->id
)
4595 /* Mark all the symbols which will be used in output relocations with
4596 the BSF_KEEP flag so that those symbols will not be stripped.
4598 Ignore relocations which will not appear in the output file. */
4601 mark_symbols_used_in_relocations (bfd
*ibfd
, sec_ptr isection
, void *symbolsarg
)
4603 asymbol
**symbols
= (asymbol
**) symbolsarg
;
4608 /* Ignore an input section with no corresponding output section. */
4609 if (isection
->output_section
== NULL
)
4612 relsize
= bfd_get_reloc_upper_bound (ibfd
, isection
);
4615 /* Do not complain if the target does not support relocations. */
4616 if (relsize
== -1 && bfd_get_error () == bfd_error_invalid_operation
)
4618 bfd_fatal (bfd_get_filename (ibfd
));
4624 relpp
= (arelent
**) xmalloc (relsize
);
4625 relcount
= bfd_canonicalize_reloc (ibfd
, isection
, relpp
, symbols
);
4627 bfd_fatal (bfd_get_filename (ibfd
));
4629 /* Examine each symbol used in a relocation. If it's not one of the
4630 special bfd section symbols, then mark it with BSF_KEEP. */
4631 for (i
= 0; i
< relcount
; i
++)
4633 /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
4634 if (relpp
[i
]->sym_ptr_ptr
!= NULL
4635 && * relpp
[i
]->sym_ptr_ptr
!= NULL
4636 && *relpp
[i
]->sym_ptr_ptr
!= bfd_com_section_ptr
->symbol
4637 && *relpp
[i
]->sym_ptr_ptr
!= bfd_abs_section_ptr
->symbol
4638 && *relpp
[i
]->sym_ptr_ptr
!= bfd_und_section_ptr
->symbol
)
4639 (*relpp
[i
]->sym_ptr_ptr
)->flags
|= BSF_KEEP
;
4645 /* Write out debugging information. */
4648 write_debugging_info (bfd
*obfd
, void *dhandle
,
4649 long *symcountp ATTRIBUTE_UNUSED
,
4650 asymbol
***symppp ATTRIBUTE_UNUSED
)
4652 if (bfd_get_flavour (obfd
) == bfd_target_coff_flavour
4653 || bfd_get_flavour (obfd
) == bfd_target_elf_flavour
)
4655 bfd_byte
*syms
, *strings
= NULL
;
4656 bfd_size_type symsize
, stringsize
;
4657 asection
*stabsec
, *stabstrsec
;
4660 if (! write_stabs_in_sections_debugging_info (obfd
, dhandle
, &syms
,
4665 flags
= SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_DEBUGGING
;
4666 stabsec
= bfd_make_section_with_flags (obfd
, ".stab", flags
);
4667 stabstrsec
= bfd_make_section_with_flags (obfd
, ".stabstr", flags
);
4669 || stabstrsec
== NULL
4670 || !bfd_set_section_size (stabsec
, symsize
)
4671 || !bfd_set_section_size (stabstrsec
, stringsize
)
4672 || !bfd_set_section_alignment (stabsec
, 2)
4673 || !bfd_set_section_alignment (stabstrsec
, 0))
4675 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4676 _("can't create debugging section"));
4681 /* We can get away with setting the section contents now because
4682 the next thing the caller is going to do is copy over the
4683 real sections. We may someday have to split the contents
4684 setting out of this function. */
4685 if (! bfd_set_section_contents (obfd
, stabsec
, syms
, 0, symsize
)
4686 || ! bfd_set_section_contents (obfd
, stabstrsec
, strings
, 0,
4689 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4690 _("can't set debugging section contents"));
4698 bfd_nonfatal_message (NULL
, obfd
, NULL
,
4699 _("don't know how to write debugging information for %s"),
4700 bfd_get_target (obfd
));
4704 /* If neither -D nor -U was specified explicitly,
4705 then use the configured default. */
4707 default_deterministic (void)
4709 if (deterministic
< 0)
4710 deterministic
= DEFAULT_AR_DETERMINISTIC
;
4714 strip_main (int argc
, char *argv
[])
4716 char *input_target
= NULL
;
4717 char *output_target
= NULL
;
4718 bool show_version
= false;
4719 bool formats_info
= false;
4722 char *output_file
= NULL
;
4723 bool merge_notes_set
= false;
4725 while ((c
= getopt_long (argc
, argv
, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU",
4726 strip_options
, (int *) 0)) != EOF
)
4731 input_target
= optarg
;
4734 output_target
= optarg
;
4737 input_target
= output_target
= optarg
;
4740 handle_remove_section_option (optarg
);
4742 case OPTION_KEEP_SECTION
:
4743 find_section_list (optarg
, true, SECTION_CONTEXT_KEEP
);
4745 case OPTION_REMOVE_RELOCS
:
4746 handle_remove_relocations_option (optarg
);
4749 strip_symbols
= STRIP_ALL
;
4753 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
4754 strip_symbols
= STRIP_DEBUG
;
4756 case OPTION_STRIP_DWO
:
4757 strip_symbols
= STRIP_DWO
;
4759 case OPTION_STRIP_UNNEEDED
:
4760 strip_symbols
= STRIP_UNNEEDED
;
4763 add_specific_symbol (optarg
, keep_specific_htab
);
4767 merge_notes_set
= true;
4769 case OPTION_NO_MERGE_NOTES
:
4770 merge_notes
= false;
4771 merge_notes_set
= true;
4774 add_specific_symbol (optarg
, strip_specific_htab
);
4777 output_file
= optarg
;
4780 preserve_dates
= true;
4783 deterministic
= true;
4786 deterministic
= false;
4789 discard_locals
= LOCALS_ALL
;
4792 discard_locals
= LOCALS_START_L
;
4798 show_version
= true;
4800 case OPTION_FORMATS_INFO
:
4801 formats_info
= true;
4803 case OPTION_ONLY_KEEP_DEBUG
:
4804 strip_symbols
= STRIP_NONDEBUG
;
4806 case OPTION_KEEP_FILE_SYMBOLS
:
4807 keep_file_symbols
= 1;
4809 case OPTION_KEEP_SECTION_SYMBOLS
:
4810 keep_section_symbols
= true;
4813 /* We've been given a long option. */
4820 strip_usage (stdout
, 0);
4822 strip_usage (stderr
, 1);
4826 /* If the user has not expressly chosen to merge/not-merge ELF notes
4827 then enable the merging unless we are stripping debug or dwo info. */
4828 if (! merge_notes_set
4829 && (strip_symbols
== STRIP_UNDEF
4830 || strip_symbols
== STRIP_ALL
4831 || strip_symbols
== STRIP_UNNEEDED
4832 || strip_symbols
== STRIP_NONDEBUG
4833 || strip_symbols
== STRIP_NONDWO
))
4843 print_version ("strip");
4845 default_deterministic ();
4847 /* Default is to strip all symbols. */
4848 if (strip_symbols
== STRIP_UNDEF
4849 && discard_locals
== LOCALS_UNDEF
4850 && htab_elements (strip_specific_htab
) == 0)
4851 strip_symbols
= STRIP_ALL
;
4853 if (output_target
== NULL
)
4854 output_target
= input_target
;
4858 || (output_file
!= NULL
&& (i
+ 1) < argc
))
4859 strip_usage (stderr
, 1);
4861 for (; i
< argc
; i
++)
4863 int hold_status
= status
;
4864 struct stat statbuf
;
4869 if (get_file_size (argv
[i
]) < 1)
4875 if (output_file
== NULL
4876 || filename_cmp (argv
[i
], output_file
) == 0)
4878 tmpname
= make_tempname (argv
[i
], &tmpfd
);
4880 copyfd
= dup (tmpfd
);
4883 tmpname
= output_file
;
4885 if (tmpname
== NULL
)
4887 bfd_nonfatal_message (argv
[i
], NULL
, NULL
,
4888 _("could not create temporary file to hold stripped copy"));
4894 copy_file (argv
[i
], tmpname
, tmpfd
, &statbuf
, input_target
,
4895 output_target
, NULL
);
4898 const char *oname
= output_file
? output_file
: argv
[i
];
4899 status
= smart_rename (tmpname
, oname
, copyfd
,
4900 &statbuf
, preserve_dates
) != 0;
4902 status
= hold_status
;
4908 unlink_if_ordinary (tmpname
);
4910 if (output_file
!= tmpname
)
4917 /* Set up PE subsystem. */
4920 set_pe_subsystem (const char *s
)
4922 const char *version
, *subsystem
;
4932 { "native", 0, IMAGE_SUBSYSTEM_NATIVE
},
4933 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI
},
4934 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI
},
4935 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI
},
4936 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
},
4937 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION
},
4938 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
},
4939 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
},
4940 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER
},
4941 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX
}
4947 /* Check for the presence of a version number. */
4948 version
= strchr (s
, ':');
4949 if (version
== NULL
)
4953 int len
= version
- s
;
4957 version
= copy
+ 1 + len
;
4958 pe_major_subsystem_version
= strtoul (version
, ©
, 0);
4960 pe_minor_subsystem_version
= strtoul (copy
+ 1, ©
, 0);
4962 non_fatal (_("%s: bad version in PE subsystem"), s
);
4965 /* Check for numeric subsystem. */
4966 value
= (short) strtol (subsystem
, ©
, 0);
4969 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4970 if (v
[i
].value
== value
)
4972 pe_subsystem
= value
;
4973 set_def
= v
[i
].set_def
;
4979 /* Search for subsystem by name. */
4980 for (i
= 0; i
< ARRAY_SIZE (v
); i
++)
4981 if (strcmp (subsystem
, v
[i
].name
) == 0)
4983 pe_subsystem
= v
[i
].value
;
4984 set_def
= v
[i
].set_def
;
4992 fatal (_("unknown PE subsystem: %s"), s
);
4997 if (pe_file_alignment
== (bfd_vma
) -1)
4998 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
4999 if (pe_section_alignment
== (bfd_vma
) -1)
5000 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5004 free ((char *) subsystem
);
5007 /* Convert EFI target to PEI target. */
5010 convert_efi_target (char **targ
)
5014 char *efi
= *targ
+ 4;
5017 if (startswith (efi
, "app-"))
5018 subsys
= IMAGE_SUBSYSTEM_EFI_APPLICATION
;
5019 else if (startswith (efi
, "bsdrv-"))
5021 subsys
= IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER
;
5024 else if (startswith (efi
, "rtdrv-"))
5026 subsys
= IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER
;
5033 pei
= xmalloc (len
+ sizeof ("-little"));
5034 memcpy (pei
, efi
, len
+ 1);
5039 if (strcmp (efi
+ 4, "ia32") == 0)
5041 /* Change ia32 to i386. */
5046 else if (strcmp (efi
+ 4, "x86_64") == 0)
5048 /* Change x86_64 to x86-64. */
5051 else if (strcmp (efi
+ 4, "aarch64") == 0)
5053 /* Change aarch64 to aarch64-little. */
5054 memcpy (pei
+ 4 + sizeof ("aarch64") - 1, "-little", sizeof ("-little"));
5060 /* Allocate and return a pointer to a struct section_add, initializing the
5061 structure using ARG, a string in the format "sectionname=filename".
5062 The returned structure will have its next pointer set to NEXT. The
5063 OPTION field is the name of the command line option currently being
5064 parsed, and is only used if an error needs to be reported. */
5066 static struct section_add
*
5067 init_section_add (const char *arg
,
5068 struct section_add
*next
,
5071 struct section_add
*pa
;
5074 s
= strchr (arg
, '=');
5076 fatal (_("bad format for %s"), option
);
5078 pa
= (struct section_add
*) xmalloc (sizeof (struct section_add
));
5079 pa
->name
= xstrndup (arg
, s
- arg
);
5080 pa
->filename
= s
+ 1;
5082 pa
->contents
= NULL
;
5088 /* Load the file specified in PA, allocating memory to hold the file
5089 contents, and store a pointer to the allocated memory in the contents
5090 field of PA. The size field of PA is also updated. All errors call
5094 section_add_load_file (struct section_add
*pa
)
5099 /* We don't use get_file_size so that we can do
5100 --add-section .note.GNU_stack=/dev/null
5101 get_file_size doesn't work on /dev/null. */
5103 f
= fopen (pa
->filename
, FOPEN_RB
);
5105 fatal (_("cannot open: %s: %s"),
5106 pa
->filename
, strerror (errno
));
5110 pa
->contents
= (bfd_byte
*) xmalloc (alloc
);
5118 pa
->contents
= (bfd_byte
*) xrealloc (pa
->contents
, alloc
);
5121 got
= fread (pa
->contents
+ off
, 1, alloc
- off
, f
);
5123 fatal (_("%s: fread failed"), pa
->filename
);
5134 copy_main (int argc
, char *argv
[])
5136 char *input_filename
= NULL
;
5137 char *output_filename
= NULL
;
5139 char *input_target
= NULL
;
5140 char *output_target
= NULL
;
5141 bool show_version
= false;
5142 bool change_warn
= true;
5143 bool formats_info
= false;
5144 bool use_globalize
= false;
5145 bool use_keep_global
= false;
5149 struct stat statbuf
;
5150 const bfd_arch_info_type
*input_arch
= NULL
;
5152 while ((c
= getopt_long (argc
, argv
, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
5153 copy_options
, (int *) 0)) != EOF
)
5158 copy_byte
= atoi (optarg
);
5160 fatal (_("byte number must be non-negative"));
5164 input_arch
= bfd_scan_arch (optarg
);
5165 if (input_arch
== NULL
)
5166 fatal (_("architecture %s unknown"), optarg
);
5172 interleave
= atoi (optarg
);
5174 fatal (_("interleave must be positive"));
5180 case OPTION_INTERLEAVE_WIDTH
:
5181 copy_width
= atoi (optarg
);
5183 fatal(_("interleave width must be positive"));
5187 case 's': /* "source" - 'I' is preferred */
5188 input_target
= optarg
;
5192 case 'd': /* "destination" - 'O' is preferred */
5193 output_target
= optarg
;
5197 input_target
= output_target
= optarg
;
5201 find_section_list (optarg
, true, SECTION_CONTEXT_COPY
);
5202 sections_copied
= true;
5206 handle_remove_section_option (optarg
);
5209 case OPTION_KEEP_SECTION
:
5210 find_section_list (optarg
, true, SECTION_CONTEXT_KEEP
);
5213 case OPTION_REMOVE_RELOCS
:
5214 handle_remove_relocations_option (optarg
);
5218 strip_symbols
= STRIP_ALL
;
5222 strip_symbols
= STRIP_DEBUG
;
5225 case OPTION_STRIP_DWO
:
5226 strip_symbols
= STRIP_DWO
;
5229 case OPTION_STRIP_UNNEEDED
:
5230 strip_symbols
= STRIP_UNNEEDED
;
5233 case OPTION_ONLY_KEEP_DEBUG
:
5234 strip_symbols
= STRIP_NONDEBUG
;
5237 case OPTION_KEEP_FILE_SYMBOLS
:
5238 keep_file_symbols
= 1;
5241 case OPTION_ADD_GNU_DEBUGLINK
:
5242 long_section_names
= ENABLE
;
5243 gnu_debuglink_filename
= optarg
;
5247 add_specific_symbol (optarg
, keep_specific_htab
);
5253 case OPTION_NO_MERGE_NOTES
:
5254 merge_notes
= false;
5258 add_specific_symbol (optarg
, strip_specific_htab
);
5261 case OPTION_STRIP_UNNEEDED_SYMBOL
:
5262 add_specific_symbol (optarg
, strip_unneeded_htab
);
5266 add_specific_symbol (optarg
, localize_specific_htab
);
5269 case OPTION_GLOBALIZE_SYMBOL
:
5270 use_globalize
= true;
5271 add_specific_symbol (optarg
, globalize_specific_htab
);
5275 use_keep_global
= true;
5276 add_specific_symbol (optarg
, keepglobal_specific_htab
);
5280 add_specific_symbol (optarg
, weaken_specific_htab
);
5284 preserve_dates
= true;
5288 deterministic
= true;
5292 deterministic
= false;
5300 discard_locals
= LOCALS_ALL
;
5304 discard_locals
= LOCALS_START_L
;
5312 show_version
= true;
5315 case OPTION_FORMATS_INFO
:
5316 formats_info
= true;
5323 case OPTION_ADD_SECTION
:
5324 add_sections
= init_section_add (optarg
, add_sections
,
5326 section_add_load_file (add_sections
);
5329 case OPTION_UPDATE_SECTION
:
5330 update_sections
= init_section_add (optarg
, update_sections
,
5331 "--update-section");
5332 section_add_load_file (update_sections
);
5335 case OPTION_DUMP_SECTION
:
5336 dump_sections
= init_section_add (optarg
, dump_sections
,
5340 case OPTION_ADD_SYMBOL
:
5343 struct addsym_node
*newsym
= xmalloc (sizeof *newsym
);
5345 newsym
->next
= NULL
;
5346 s
= strchr (optarg
, '=');
5348 fatal (_("bad format for %s"), "--add-symbol");
5349 t
= strchr (s
+ 1, ':');
5351 newsym
->symdef
= xstrndup (optarg
, s
- optarg
);
5354 newsym
->section
= xstrndup (s
+ 1, t
- (s
+ 1));
5355 newsym
->symval
= strtol (t
+ 1, NULL
, 0);
5359 newsym
->section
= NULL
;
5360 newsym
->symval
= strtol (s
+ 1, NULL
, 0);
5364 t
= strchr (t
+ 1, ',');
5365 newsym
->othersym
= NULL
;
5367 newsym
->flags
= parse_symflags (t
+1, &newsym
->othersym
);
5369 newsym
->flags
= BSF_GLOBAL
;
5371 /* Keep 'othersym' symbols at the front of the list. */
5372 if (newsym
->othersym
)
5374 newsym
->next
= add_sym_list
;
5376 add_sym_tail
= &newsym
->next
;
5377 add_sym_list
= newsym
;
5381 *add_sym_tail
= newsym
;
5382 add_sym_tail
= &newsym
->next
;
5388 case OPTION_CHANGE_START
:
5389 change_start
= parse_vma (optarg
, "--change-start");
5392 case OPTION_CHANGE_SECTION_ADDRESS
:
5393 case OPTION_CHANGE_SECTION_LMA
:
5394 case OPTION_CHANGE_SECTION_VMA
:
5396 struct section_list
* p
;
5397 unsigned int context
= 0;
5401 char *option
= NULL
;
5406 case OPTION_CHANGE_SECTION_ADDRESS
:
5407 option
= "--change-section-address";
5408 context
= SECTION_CONTEXT_ALTER_LMA
| SECTION_CONTEXT_ALTER_VMA
;
5410 case OPTION_CHANGE_SECTION_LMA
:
5411 option
= "--change-section-lma";
5412 context
= SECTION_CONTEXT_ALTER_LMA
;
5414 case OPTION_CHANGE_SECTION_VMA
:
5415 option
= "--change-section-vma";
5416 context
= SECTION_CONTEXT_ALTER_VMA
;
5420 s
= strchr (optarg
, '=');
5423 s
= strchr (optarg
, '+');
5426 s
= strchr (optarg
, '-');
5428 fatal (_("bad format for %s"), option
);
5433 /* Correct the context. */
5436 case OPTION_CHANGE_SECTION_ADDRESS
:
5437 context
= SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_SET_VMA
;
5439 case OPTION_CHANGE_SECTION_LMA
:
5440 context
= SECTION_CONTEXT_SET_LMA
;
5442 case OPTION_CHANGE_SECTION_VMA
:
5443 context
= SECTION_CONTEXT_SET_VMA
;
5449 name
= (char *) xmalloc (len
+ 1);
5450 strncpy (name
, optarg
, len
);
5453 p
= find_section_list (name
, true, context
);
5455 val
= parse_vma (s
+ 1, option
);
5461 case OPTION_CHANGE_SECTION_ADDRESS
:
5465 case OPTION_CHANGE_SECTION_LMA
:
5469 case OPTION_CHANGE_SECTION_VMA
:
5476 case OPTION_CHANGE_ADDRESSES
:
5477 change_section_address
= parse_vma (optarg
, "--change-addresses");
5478 change_start
= change_section_address
;
5481 case OPTION_CHANGE_WARNINGS
:
5485 case OPTION_CHANGE_LEADING_CHAR
:
5486 change_leading_char
= true;
5489 case OPTION_COMPRESS_DEBUG_SECTIONS
:
5492 if (strcasecmp (optarg
, "none") == 0)
5493 do_debug_sections
= decompress
;
5494 else if (strcasecmp (optarg
, "zlib") == 0)
5495 do_debug_sections
= compress_zlib
;
5496 else if (strcasecmp (optarg
, "zlib-gnu") == 0)
5497 do_debug_sections
= compress_gnu_zlib
;
5498 else if (strcasecmp (optarg
, "zlib-gabi") == 0)
5499 do_debug_sections
= compress_gabi_zlib
;
5500 else if (strcasecmp (optarg
, "zstd") == 0)
5501 do_debug_sections
= compress_zstd
;
5503 fatal (_("unrecognized --compress-debug-sections type `%s'"),
5507 do_debug_sections
= compress
;
5510 case OPTION_DEBUGGING
:
5511 convert_debugging
= true;
5514 case OPTION_DECOMPRESS_DEBUG_SECTIONS
:
5515 do_debug_sections
= decompress
;
5518 case OPTION_ELF_STT_COMMON
:
5519 if (strcasecmp (optarg
, "yes") == 0)
5520 do_elf_stt_common
= elf_stt_common
;
5521 else if (strcasecmp (optarg
, "no") == 0)
5522 do_elf_stt_common
= no_elf_stt_common
;
5524 fatal (_("unrecognized --elf-stt-common= option `%s'"),
5528 case OPTION_GAP_FILL
:
5530 bfd_vma gap_fill_vma
;
5532 gap_fill_vma
= parse_vma (optarg
, "--gap-fill");
5533 gap_fill
= (bfd_byte
) gap_fill_vma
;
5534 if ((bfd_vma
) gap_fill
!= gap_fill_vma
)
5535 non_fatal (_("Warning: truncating gap-fill from 0x%" PRIx64
5537 (uint64_t) gap_fill_vma
, gap_fill
);
5538 gap_fill_set
= true;
5542 case OPTION_NO_CHANGE_WARNINGS
:
5543 change_warn
= false;
5547 pad_to
= parse_vma (optarg
, "--pad-to");
5551 case OPTION_REMOVE_LEADING_CHAR
:
5552 remove_leading_char
= true;
5555 case OPTION_REDEFINE_SYM
:
5557 /* Insert this redefinition onto redefine_specific_htab. */
5561 const char *nextarg
;
5562 char *source
, *target
;
5564 s
= strchr (optarg
, '=');
5566 fatal (_("bad format for %s"), "--redefine-sym");
5569 source
= (char *) xmalloc (len
+ 1);
5570 strncpy (source
, optarg
, len
);
5574 len
= strlen (nextarg
);
5575 target
= (char *) xmalloc (len
+ 1);
5576 strcpy (target
, nextarg
);
5578 add_redefine_and_check ("--redefine-sym", source
, target
);
5585 case OPTION_REDEFINE_SYMS
:
5586 add_redefine_syms_file (optarg
);
5589 case OPTION_SET_SECTION_FLAGS
:
5591 struct section_list
*p
;
5596 s
= strchr (optarg
, '=');
5598 fatal (_("bad format for %s"), "--set-section-flags");
5601 name
= (char *) xmalloc (len
+ 1);
5602 strncpy (name
, optarg
, len
);
5605 p
= find_section_list (name
, true, SECTION_CONTEXT_SET_FLAGS
);
5607 p
->flags
= parse_flags (s
+ 1);
5611 case OPTION_SET_SECTION_ALIGNMENT
:
5613 struct section_list
*p
;
5619 s
= strchr (optarg
, '=');
5621 fatal (_("bad format for --set-section-alignment: argument needed"));
5623 align
= atoi (s
+ 1);
5625 fatal (_("bad format for --set-section-alignment: numeric argument needed"));
5627 /* Convert integer alignment into a power-of-two alignment. */
5629 while ((align
& 1) == 0)
5636 /* Number has more than on 1, i.e. wasn't a power of 2. */
5637 fatal (_("bad format for --set-section-alignment: alignment is not a power of two"));
5639 /* Add the alignment setting to the section list. */
5641 name
= (char *) xmalloc (len
+ 1);
5642 strncpy (name
, optarg
, len
);
5645 p
= find_section_list (name
, true, SECTION_CONTEXT_SET_ALIGNMENT
);
5647 p
->alignment
= palign
;
5651 case OPTION_RENAME_SECTION
:
5654 const char *eq
, *fl
;
5659 eq
= strchr (optarg
, '=');
5661 fatal (_("bad format for %s"), "--rename-section");
5665 fatal (_("bad format for %s"), "--rename-section");
5667 old_name
= (char *) xmalloc (len
+ 1);
5668 strncpy (old_name
, optarg
, len
);
5672 fl
= strchr (eq
, ',');
5675 flags
= parse_flags (fl
+ 1);
5685 fatal (_("bad format for %s"), "--rename-section");
5687 new_name
= (char *) xmalloc (len
+ 1);
5688 strncpy (new_name
, eq
, len
);
5691 add_section_rename (old_name
, new_name
, flags
);
5695 case OPTION_SET_START
:
5696 set_start
= parse_vma (optarg
, "--set-start");
5697 set_start_set
= true;
5700 case OPTION_SREC_LEN
:
5701 _bfd_srec_len
= parse_vma (optarg
, "--srec-len");
5704 case OPTION_SREC_FORCES3
:
5705 _bfd_srec_forceS3
= true;
5708 case OPTION_STRIP_SYMBOLS
:
5709 add_specific_symbols (optarg
, strip_specific_htab
,
5710 &strip_specific_buffer
);
5713 case OPTION_STRIP_UNNEEDED_SYMBOLS
:
5714 add_specific_symbols (optarg
, strip_unneeded_htab
,
5715 &strip_unneeded_buffer
);
5718 case OPTION_KEEP_SYMBOLS
:
5719 add_specific_symbols (optarg
, keep_specific_htab
,
5720 &keep_specific_buffer
);
5723 case OPTION_KEEP_SECTION_SYMBOLS
:
5724 keep_section_symbols
= true;
5727 case OPTION_LOCALIZE_HIDDEN
:
5728 localize_hidden
= true;
5731 case OPTION_LOCALIZE_SYMBOLS
:
5732 add_specific_symbols (optarg
, localize_specific_htab
,
5733 &localize_specific_buffer
);
5736 case OPTION_LONG_SECTION_NAMES
:
5737 if (!strcmp ("enable", optarg
))
5738 long_section_names
= ENABLE
;
5739 else if (!strcmp ("disable", optarg
))
5740 long_section_names
= DISABLE
;
5741 else if (!strcmp ("keep", optarg
))
5742 long_section_names
= KEEP
;
5744 fatal (_("unknown long section names option '%s'"), optarg
);
5747 case OPTION_GLOBALIZE_SYMBOLS
:
5748 use_globalize
= true;
5749 add_specific_symbols (optarg
, globalize_specific_htab
,
5750 &globalize_specific_buffer
);
5753 case OPTION_KEEPGLOBAL_SYMBOLS
:
5754 use_keep_global
= true;
5755 add_specific_symbols (optarg
, keepglobal_specific_htab
,
5756 &keepglobal_specific_buffer
);
5759 case OPTION_WEAKEN_SYMBOLS
:
5760 add_specific_symbols (optarg
, weaken_specific_htab
,
5761 &weaken_specific_buffer
);
5764 case OPTION_ALT_MACH_CODE
:
5765 use_alt_mach_code
= strtoul (optarg
, NULL
, 0);
5766 if (use_alt_mach_code
== 0)
5767 fatal (_("unable to parse alternative machine code"));
5770 case OPTION_PREFIX_SYMBOLS
:
5771 prefix_symbols_string
= optarg
;
5774 case OPTION_PREFIX_SECTIONS
:
5775 prefix_sections_string
= optarg
;
5778 case OPTION_PREFIX_ALLOC_SECTIONS
:
5779 prefix_alloc_sections_string
= optarg
;
5782 case OPTION_READONLY_TEXT
:
5783 bfd_flags_to_set
|= WP_TEXT
;
5784 bfd_flags_to_clear
&= ~WP_TEXT
;
5787 case OPTION_WRITABLE_TEXT
:
5788 bfd_flags_to_clear
|= WP_TEXT
;
5789 bfd_flags_to_set
&= ~WP_TEXT
;
5793 bfd_flags_to_set
|= D_PAGED
;
5794 bfd_flags_to_clear
&= ~D_PAGED
;
5798 bfd_flags_to_clear
|= D_PAGED
;
5799 bfd_flags_to_set
&= ~D_PAGED
;
5802 case OPTION_EXTRACT_DWO
:
5803 strip_symbols
= STRIP_NONDWO
;
5806 case OPTION_EXTRACT_SYMBOL
:
5807 extract_symbol
= true;
5810 case OPTION_REVERSE_BYTES
:
5812 int prev
= reverse_bytes
;
5814 reverse_bytes
= atoi (optarg
);
5815 if ((reverse_bytes
<= 0) || ((reverse_bytes
% 2) != 0))
5816 fatal (_("number of bytes to reverse must be positive and even"));
5818 if (prev
&& prev
!= reverse_bytes
)
5819 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
5824 case OPTION_FILE_ALIGNMENT
:
5825 pe_file_alignment
= parse_vma (optarg
, "--file-alignment");
5831 pe_heap_reserve
= strtoul (optarg
, &end
, 0);
5833 || (*end
!= '.' && *end
!= '\0'))
5834 non_fatal (_("%s: invalid reserve value for --heap"),
5836 else if (*end
!= '\0')
5838 pe_heap_commit
= strtoul (end
+ 1, &end
, 0);
5840 non_fatal (_("%s: invalid commit value for --heap"),
5846 case OPTION_IMAGE_BASE
:
5847 pe_image_base
= parse_vma (optarg
, "--image-base");
5850 case OPTION_PE_SECTION_ALIGNMENT
:
5851 pe_section_alignment
= parse_vma (optarg
,
5852 "--section-alignment");
5855 case OPTION_SUBSYSTEM
:
5856 set_pe_subsystem (optarg
);
5862 pe_stack_reserve
= strtoul (optarg
, &end
, 0);
5864 || (*end
!= '.' && *end
!= '\0'))
5865 non_fatal (_("%s: invalid reserve value for --stack"),
5867 else if (*end
!= '\0')
5869 pe_stack_commit
= strtoul (end
+ 1, &end
, 0);
5871 non_fatal (_("%s: invalid commit value for --stack"),
5877 case OPTION_VERILOG_DATA_WIDTH
:
5878 VerilogDataWidth
= parse_vma (optarg
, "--verilog-data-width");
5879 switch (VerilogDataWidth
)
5885 case 16: /* We do not support widths > 16 because the verilog
5886 data is handled internally in 16 byte wide packets. */
5889 fatal (_("error: verilog data width must be 1, 2, 4, 8 or 16"));
5894 /* We've been given a long option. */
5899 copy_usage (stdout
, 0);
5902 copy_usage (stderr
, 1);
5906 if (use_globalize
&& use_keep_global
)
5907 fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)"));
5916 print_version ("objcopy");
5918 if (interleave
&& copy_byte
== -1)
5919 fatal (_("interleave start byte must be set with --byte"));
5921 if (copy_byte
>= interleave
)
5922 fatal (_("byte number must be less than interleave"));
5924 if (copy_width
> interleave
- copy_byte
)
5925 fatal (_("interleave width must be less than or equal to interleave - byte`"));
5927 if (optind
== argc
|| optind
+ 2 < argc
)
5928 copy_usage (stderr
, 1);
5930 input_filename
= argv
[optind
];
5931 if (optind
+ 1 < argc
)
5932 output_filename
= argv
[optind
+ 1];
5934 default_deterministic ();
5936 /* Default is to strip no symbols. */
5937 if (strip_symbols
== STRIP_UNDEF
&& discard_locals
== LOCALS_UNDEF
)
5938 strip_symbols
= STRIP_NONE
;
5940 if (output_target
== NULL
)
5941 output_target
= input_target
;
5943 /* Convert input EFI target to PEI target. */
5944 if (input_target
!= NULL
5945 && startswith (input_target
, "efi-"))
5947 if (convert_efi_target (&input_target
) < 0)
5948 fatal (_("unknown input EFI target: %s"), input_target
);
5951 /* Convert output EFI target to PEI target. */
5952 if (output_target
!= NULL
5953 && startswith (output_target
, "efi-"))
5955 int subsys
= convert_efi_target (&output_target
);
5958 fatal (_("unknown output EFI target: %s"), output_target
);
5959 if (pe_subsystem
== -1)
5960 pe_subsystem
= subsys
;
5961 if (pe_file_alignment
== (bfd_vma
) -1)
5962 pe_file_alignment
= PE_DEF_FILE_ALIGNMENT
;
5963 if (pe_section_alignment
== (bfd_vma
) -1)
5964 pe_section_alignment
= PE_DEF_SECTION_ALIGNMENT
;
5967 /* If there is no destination file, or the source and destination files
5968 are the same, then create a temp and copy the result into the input. */
5970 if (output_filename
== NULL
5971 || filename_cmp (input_filename
, output_filename
) == 0)
5973 tmpname
= make_tempname (input_filename
, &tmpfd
);
5975 copyfd
= dup (tmpfd
);
5978 tmpname
= output_filename
;
5980 if (tmpname
== NULL
)
5982 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
5983 input_filename
, strerror (errno
));
5986 copy_file (input_filename
, tmpname
, tmpfd
, &statbuf
, input_target
,
5987 output_target
, input_arch
);
5990 const char *oname
= output_filename
? output_filename
: input_filename
;
5991 status
= smart_rename (tmpname
, oname
, copyfd
,
5992 &statbuf
, preserve_dates
) != 0;
5998 unlink_if_ordinary (tmpname
);
6001 if (tmpname
!= output_filename
)
6006 struct section_list
*p
;
6008 for (p
= change_sections
; p
!= NULL
; p
= p
->next
)
6012 if (p
->context
& (SECTION_CONTEXT_SET_VMA
| SECTION_CONTEXT_ALTER_VMA
))
6013 /* xgettext:c-format */
6014 non_fatal (_("%s %s%c0x%" PRIx64
" never used"),
6015 "--change-section-vma",
6017 p
->context
& SECTION_CONTEXT_SET_VMA
? '=' : '+',
6018 (uint64_t) p
->vma_val
);
6020 if (p
->context
& (SECTION_CONTEXT_SET_LMA
| SECTION_CONTEXT_ALTER_LMA
))
6021 /* xgettext:c-format */
6022 non_fatal (_("%s %s%c0x%" PRIx64
" never used"),
6023 "--change-section-lma",
6025 p
->context
& SECTION_CONTEXT_SET_LMA
? '=' : '+',
6026 (uint64_t) p
->lma_val
);
6031 free (strip_specific_buffer
);
6032 free (strip_unneeded_buffer
);
6033 free (keep_specific_buffer
);
6034 free (localize_specific_buffer
);
6035 free (globalize_specific_buffer
);
6036 free (keepglobal_specific_buffer
);
6037 free (weaken_specific_buffer
);
6043 main (int argc
, char *argv
[])
6045 #ifdef HAVE_LC_MESSAGES
6046 setlocale (LC_MESSAGES
, "");
6048 setlocale (LC_CTYPE
, "");
6049 bindtextdomain (PACKAGE
, LOCALEDIR
);
6050 textdomain (PACKAGE
);
6052 program_name
= argv
[0];
6053 xmalloc_set_program_name (program_name
);
6055 expandargv (&argc
, &argv
);
6057 strip_symbols
= STRIP_UNDEF
;
6058 discard_locals
= LOCALS_UNDEF
;
6060 if (bfd_init () != BFD_INIT_MAGIC
)
6061 fatal (_("fatal error: libbfd ABI mismatch"));
6062 set_default_bfd_target ();
6066 int i
= strlen (program_name
);
6067 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
6068 /* Drop the .exe suffix, if any. */
6069 if (i
> 4 && FILENAME_CMP (program_name
+ i
- 4, ".exe") == 0)
6072 program_name
[i
] = '\0';
6075 is_strip
= (i
>= 5 && FILENAME_CMP (program_name
+ i
- 5, "strip") == 0);
6078 create_symbol_htabs ();
6079 xatexit (delete_symbol_htabs
);
6082 bfd_set_error_program_name (argv
[0]);
6085 strip_main (argc
, argv
);
6087 copy_main (argc
, argv
);