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1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2016 Free Software Foundation, Inc.
3
4 This file is part of GNU Binutils.
5
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.
10
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.
15
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
19 02110-1301, USA. */
20 \f
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "progress.h"
24 #include "getopt.h"
25 #include "libiberty.h"
26 #include "bucomm.h"
27 #include "budbg.h"
28 #include "filenames.h"
29 #include "fnmatch.h"
30 #include "elf-bfd.h"
31 #include "libbfd.h"
32 #include "coff/internal.h"
33 #include "libcoff.h"
34
35 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
36 header in generic PE code. */
37 #include "coff/i386.h"
38 #include "coff/pe.h"
39
40 static bfd_vma pe_file_alignment = (bfd_vma) -1;
41 static bfd_vma pe_heap_commit = (bfd_vma) -1;
42 static bfd_vma pe_heap_reserve = (bfd_vma) -1;
43 static bfd_vma pe_image_base = (bfd_vma) -1;
44 static bfd_vma pe_section_alignment = (bfd_vma) -1;
45 static bfd_vma pe_stack_commit = (bfd_vma) -1;
46 static bfd_vma pe_stack_reserve = (bfd_vma) -1;
47 static short pe_subsystem = -1;
48 static short pe_major_subsystem_version = -1;
49 static short pe_minor_subsystem_version = -1;
50
51 struct is_specified_symbol_predicate_data
52 {
53 const char * name;
54 bfd_boolean found;
55 };
56
57 /* A list to support redefine_sym. */
58 struct redefine_node
59 {
60 char *source;
61 char *target;
62 struct redefine_node *next;
63 };
64
65 struct addsym_node
66 {
67 struct addsym_node *next;
68 char * symdef;
69 long symval;
70 flagword flags;
71 char * section;
72 char * othersym;
73 };
74
75 typedef struct section_rename
76 {
77 const char * old_name;
78 const char * new_name;
79 flagword flags;
80 struct section_rename * next;
81 }
82 section_rename;
83
84 /* List of sections to be renamed. */
85 static section_rename *section_rename_list;
86
87 static asymbol **isympp = NULL; /* Input symbols. */
88 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
89
90 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
91 static int copy_byte = -1;
92 static int interleave = 0; /* Initialised to 4 in copy_main(). */
93 static int copy_width = 1;
94
95 static bfd_boolean verbose; /* Print file and target names. */
96 static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
97 static int deterministic = -1; /* Enable deterministic archives. */
98 static int status = 0; /* Exit status. */
99
100 enum strip_action
101 {
102 STRIP_UNDEF,
103 STRIP_NONE, /* Don't strip. */
104 STRIP_DEBUG, /* Strip all debugger symbols. */
105 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
106 STRIP_NONDEBUG, /* Strip everything but debug info. */
107 STRIP_DWO, /* Strip all DWO info. */
108 STRIP_NONDWO, /* Strip everything but DWO info. */
109 STRIP_ALL /* Strip all symbols. */
110 };
111
112 /* Which symbols to remove. */
113 static enum strip_action strip_symbols = STRIP_UNDEF;
114
115 enum locals_action
116 {
117 LOCALS_UNDEF,
118 LOCALS_START_L, /* Discard locals starting with L. */
119 LOCALS_ALL /* Discard all locals. */
120 };
121
122 /* Which local symbols to remove. Overrides STRIP_ALL. */
123 static enum locals_action discard_locals;
124
125 /* Structure used to hold lists of sections and actions to take. */
126 struct section_list
127 {
128 struct section_list * next; /* Next section to change. */
129 const char * pattern; /* Section name pattern. */
130 bfd_boolean used; /* Whether this entry was used. */
131
132 unsigned int context; /* What to do with matching sections. */
133 /* Flag bits used in the context field.
134 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
135 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
136 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
137 #define SECTION_CONTEXT_SET_VMA (1 << 2) /* Set the sections' VMA address. */
138 #define SECTION_CONTEXT_ALTER_VMA (1 << 3) /* Increment or decrement the section's VMA address. */
139 #define SECTION_CONTEXT_SET_LMA (1 << 4) /* Set the sections' LMA address. */
140 #define SECTION_CONTEXT_ALTER_LMA (1 << 5) /* Increment or decrement the section's LMA address. */
141 #define SECTION_CONTEXT_SET_FLAGS (1 << 6) /* Set the section's flags. */
142
143 bfd_vma vma_val; /* Amount to change by or set to. */
144 bfd_vma lma_val; /* Amount to change by or set to. */
145 flagword flags; /* What to set the section flags to. */
146 };
147
148 static struct section_list *change_sections;
149
150 /* TRUE if some sections are to be removed. */
151 static bfd_boolean sections_removed;
152
153 /* TRUE if only some sections are to be copied. */
154 static bfd_boolean sections_copied;
155
156 /* Changes to the start address. */
157 static bfd_vma change_start = 0;
158 static bfd_boolean set_start_set = FALSE;
159 static bfd_vma set_start;
160
161 /* Changes to section addresses. */
162 static bfd_vma change_section_address = 0;
163
164 /* Filling gaps between sections. */
165 static bfd_boolean gap_fill_set = FALSE;
166 static bfd_byte gap_fill = 0;
167
168 /* Pad to a given address. */
169 static bfd_boolean pad_to_set = FALSE;
170 static bfd_vma pad_to;
171
172 /* Use alternative machine code? */
173 static unsigned long use_alt_mach_code = 0;
174
175 /* Output BFD flags user wants to set or clear */
176 static flagword bfd_flags_to_set;
177 static flagword bfd_flags_to_clear;
178
179 /* List of sections to add. */
180 struct section_add
181 {
182 /* Next section to add. */
183 struct section_add *next;
184 /* Name of section to add. */
185 const char *name;
186 /* Name of file holding section contents. */
187 const char *filename;
188 /* Size of file. */
189 size_t size;
190 /* Contents of file. */
191 bfd_byte *contents;
192 /* BFD section, after it has been added. */
193 asection *section;
194 };
195
196 /* List of sections to add to the output BFD. */
197 static struct section_add *add_sections;
198
199 /* List of sections to update in the output BFD. */
200 static struct section_add *update_sections;
201
202 /* List of sections to dump from the output BFD. */
203 static struct section_add *dump_sections;
204
205 /* If non-NULL the argument to --add-gnu-debuglink.
206 This should be the filename to store in the .gnu_debuglink section. */
207 static const char * gnu_debuglink_filename = NULL;
208
209 /* Whether to convert debugging information. */
210 static bfd_boolean convert_debugging = FALSE;
211
212 /* Whether to compress/decompress DWARF debug sections. */
213 static enum
214 {
215 nothing = 0,
216 compress = 1 << 0,
217 compress_zlib = compress | 1 << 1,
218 compress_gnu_zlib = compress | 1 << 2,
219 compress_gabi_zlib = compress | 1 << 3,
220 decompress = 1 << 4
221 } do_debug_sections = nothing;
222
223 /* Whether to generate ELF common symbols with the STT_COMMON type. */
224 static enum bfd_link_elf_stt_common do_elf_stt_common = unchanged;
225
226 /* Whether to change the leading character in symbol names. */
227 static bfd_boolean change_leading_char = FALSE;
228
229 /* Whether to remove the leading character from global symbol names. */
230 static bfd_boolean remove_leading_char = FALSE;
231
232 /* Whether to permit wildcard in symbol comparison. */
233 static bfd_boolean wildcard = FALSE;
234
235 /* True if --localize-hidden is in effect. */
236 static bfd_boolean localize_hidden = FALSE;
237
238 /* List of symbols to strip, keep, localize, keep-global, weaken,
239 or redefine. */
240 static htab_t strip_specific_htab = NULL;
241 static htab_t strip_unneeded_htab = NULL;
242 static htab_t keep_specific_htab = NULL;
243 static htab_t localize_specific_htab = NULL;
244 static htab_t globalize_specific_htab = NULL;
245 static htab_t keepglobal_specific_htab = NULL;
246 static htab_t weaken_specific_htab = NULL;
247 static struct redefine_node *redefine_sym_list = NULL;
248 static struct addsym_node *add_sym_list = NULL, **add_sym_tail = &add_sym_list;
249 static int add_symbols = 0;
250
251 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
252 static bfd_boolean weaken = FALSE;
253
254 /* If this is TRUE, we retain BSF_FILE symbols. */
255 static bfd_boolean keep_file_symbols = FALSE;
256
257 /* Prefix symbols/sections. */
258 static char *prefix_symbols_string = 0;
259 static char *prefix_sections_string = 0;
260 static char *prefix_alloc_sections_string = 0;
261
262 /* True if --extract-symbol was passed on the command line. */
263 static bfd_boolean extract_symbol = FALSE;
264
265 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
266 of <reverse_bytes> bytes within each output section. */
267 static int reverse_bytes = 0;
268
269 /* For Coff objects, we may want to allow or disallow long section names,
270 or preserve them where found in the inputs. Debug info relies on them. */
271 enum long_section_name_handling
272 {
273 DISABLE,
274 ENABLE,
275 KEEP
276 };
277
278 /* The default long section handling mode is to preserve them.
279 This is also the only behaviour for 'strip'. */
280 static enum long_section_name_handling long_section_names = KEEP;
281
282 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
283 enum command_line_switch
284 {
285 OPTION_ADD_SECTION=150,
286 OPTION_ADD_GNU_DEBUGLINK,
287 OPTION_ADD_SYMBOL,
288 OPTION_ALT_MACH_CODE,
289 OPTION_CHANGE_ADDRESSES,
290 OPTION_CHANGE_LEADING_CHAR,
291 OPTION_CHANGE_SECTION_ADDRESS,
292 OPTION_CHANGE_SECTION_LMA,
293 OPTION_CHANGE_SECTION_VMA,
294 OPTION_CHANGE_START,
295 OPTION_CHANGE_WARNINGS,
296 OPTION_COMPRESS_DEBUG_SECTIONS,
297 OPTION_DEBUGGING,
298 OPTION_DECOMPRESS_DEBUG_SECTIONS,
299 OPTION_DUMP_SECTION,
300 OPTION_ELF_STT_COMMON,
301 OPTION_EXTRACT_DWO,
302 OPTION_EXTRACT_SYMBOL,
303 OPTION_FILE_ALIGNMENT,
304 OPTION_FORMATS_INFO,
305 OPTION_GAP_FILL,
306 OPTION_GLOBALIZE_SYMBOL,
307 OPTION_GLOBALIZE_SYMBOLS,
308 OPTION_HEAP,
309 OPTION_IMAGE_BASE,
310 OPTION_IMPURE,
311 OPTION_INTERLEAVE_WIDTH,
312 OPTION_KEEPGLOBAL_SYMBOLS,
313 OPTION_KEEP_FILE_SYMBOLS,
314 OPTION_KEEP_SYMBOLS,
315 OPTION_LOCALIZE_HIDDEN,
316 OPTION_LOCALIZE_SYMBOLS,
317 OPTION_LONG_SECTION_NAMES,
318 OPTION_NO_CHANGE_WARNINGS,
319 OPTION_ONLY_KEEP_DEBUG,
320 OPTION_PAD_TO,
321 OPTION_PREFIX_ALLOC_SECTIONS,
322 OPTION_PREFIX_SECTIONS,
323 OPTION_PREFIX_SYMBOLS,
324 OPTION_PURE,
325 OPTION_READONLY_TEXT,
326 OPTION_REDEFINE_SYM,
327 OPTION_REDEFINE_SYMS,
328 OPTION_REMOVE_LEADING_CHAR,
329 OPTION_RENAME_SECTION,
330 OPTION_REVERSE_BYTES,
331 OPTION_SECTION_ALIGNMENT,
332 OPTION_SET_SECTION_FLAGS,
333 OPTION_SET_START,
334 OPTION_SREC_FORCES3,
335 OPTION_SREC_LEN,
336 OPTION_STACK,
337 OPTION_STRIP_DWO,
338 OPTION_STRIP_SYMBOLS,
339 OPTION_STRIP_UNNEEDED,
340 OPTION_STRIP_UNNEEDED_SYMBOL,
341 OPTION_STRIP_UNNEEDED_SYMBOLS,
342 OPTION_SUBSYSTEM,
343 OPTION_UPDATE_SECTION,
344 OPTION_WEAKEN,
345 OPTION_WEAKEN_SYMBOLS,
346 OPTION_WRITABLE_TEXT
347 };
348
349 /* Options to handle if running as "strip". */
350
351 static struct option strip_options[] =
352 {
353 {"disable-deterministic-archives", no_argument, 0, 'U'},
354 {"discard-all", no_argument, 0, 'x'},
355 {"discard-locals", no_argument, 0, 'X'},
356 {"enable-deterministic-archives", no_argument, 0, 'D'},
357 {"format", required_argument, 0, 'F'}, /* Obsolete */
358 {"help", no_argument, 0, 'h'},
359 {"info", no_argument, 0, OPTION_FORMATS_INFO},
360 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
361 {"input-target", required_argument, 0, 'I'},
362 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
363 {"keep-symbol", required_argument, 0, 'K'},
364 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
365 {"output-file", required_argument, 0, 'o'},
366 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
367 {"output-target", required_argument, 0, 'O'},
368 {"preserve-dates", no_argument, 0, 'p'},
369 {"remove-section", required_argument, 0, 'R'},
370 {"strip-all", no_argument, 0, 's'},
371 {"strip-debug", no_argument, 0, 'S'},
372 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
373 {"strip-symbol", required_argument, 0, 'N'},
374 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
375 {"target", required_argument, 0, 'F'},
376 {"verbose", no_argument, 0, 'v'},
377 {"version", no_argument, 0, 'V'},
378 {"wildcard", no_argument, 0, 'w'},
379 {0, no_argument, 0, 0}
380 };
381
382 /* Options to handle if running as "objcopy". */
383
384 static struct option copy_options[] =
385 {
386 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
387 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
388 {"add-symbol", required_argument, 0, OPTION_ADD_SYMBOL},
389 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
390 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
391 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
392 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
393 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
394 {"binary-architecture", required_argument, 0, 'B'},
395 {"byte", required_argument, 0, 'b'},
396 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
397 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
398 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
399 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
400 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
401 {"change-start", required_argument, 0, OPTION_CHANGE_START},
402 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
403 {"compress-debug-sections", optional_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS},
404 {"debugging", no_argument, 0, OPTION_DEBUGGING},
405 {"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS},
406 {"disable-deterministic-archives", no_argument, 0, 'U'},
407 {"discard-all", no_argument, 0, 'x'},
408 {"discard-locals", no_argument, 0, 'X'},
409 {"dump-section", required_argument, 0, OPTION_DUMP_SECTION},
410 {"elf-stt-common", required_argument, 0, OPTION_ELF_STT_COMMON},
411 {"enable-deterministic-archives", no_argument, 0, 'D'},
412 {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO},
413 {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
414 {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT},
415 {"format", required_argument, 0, 'F'}, /* Obsolete */
416 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
417 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
418 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
419 {"heap", required_argument, 0, OPTION_HEAP},
420 {"help", no_argument, 0, 'h'},
421 {"image-base", required_argument, 0 , OPTION_IMAGE_BASE},
422 {"impure", no_argument, 0, OPTION_IMPURE},
423 {"info", no_argument, 0, OPTION_FORMATS_INFO},
424 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
425 {"input-target", required_argument, 0, 'I'},
426 {"interleave", optional_argument, 0, 'i'},
427 {"interleave-width", required_argument, 0, OPTION_INTERLEAVE_WIDTH},
428 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
429 {"keep-global-symbol", required_argument, 0, 'G'},
430 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
431 {"keep-symbol", required_argument, 0, 'K'},
432 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
433 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
434 {"localize-symbol", required_argument, 0, 'L'},
435 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
436 {"long-section-names", required_argument, 0, OPTION_LONG_SECTION_NAMES},
437 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
438 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
439 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
440 {"only-section", required_argument, 0, 'j'},
441 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
442 {"output-target", required_argument, 0, 'O'},
443 {"pad-to", required_argument, 0, OPTION_PAD_TO},
444 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
445 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
446 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
447 {"preserve-dates", no_argument, 0, 'p'},
448 {"pure", no_argument, 0, OPTION_PURE},
449 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
450 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
451 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
452 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
453 {"remove-section", required_argument, 0, 'R'},
454 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
455 {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
456 {"section-alignment", required_argument, 0, OPTION_SECTION_ALIGNMENT},
457 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
458 {"set-start", required_argument, 0, OPTION_SET_START},
459 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
460 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
461 {"stack", required_argument, 0, OPTION_STACK},
462 {"strip-all", no_argument, 0, 'S'},
463 {"strip-debug", no_argument, 0, 'g'},
464 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
465 {"strip-symbol", required_argument, 0, 'N'},
466 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
467 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
468 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
469 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
470 {"subsystem", required_argument, 0, OPTION_SUBSYSTEM},
471 {"target", required_argument, 0, 'F'},
472 {"update-section", required_argument, 0, OPTION_UPDATE_SECTION},
473 {"verbose", no_argument, 0, 'v'},
474 {"version", no_argument, 0, 'V'},
475 {"weaken", no_argument, 0, OPTION_WEAKEN},
476 {"weaken-symbol", required_argument, 0, 'W'},
477 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
478 {"wildcard", no_argument, 0, 'w'},
479 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
480 {0, no_argument, 0, 0}
481 };
482
483 /* IMPORTS */
484 extern char *program_name;
485
486 /* This flag distinguishes between strip and objcopy:
487 1 means this is 'strip'; 0 means this is 'objcopy'.
488 -1 means if we should use argv[0] to decide. */
489 extern int is_strip;
490
491 /* The maximum length of an S record. This variable is declared in srec.c
492 and can be modified by the --srec-len parameter. */
493 extern unsigned int Chunk;
494
495 /* Restrict the generation of Srecords to type S3 only.
496 This variable is declare in bfd/srec.c and can be toggled
497 on by the --srec-forceS3 command line switch. */
498 extern bfd_boolean S3Forced;
499
500 /* Forward declarations. */
501 static void setup_section (bfd *, asection *, void *);
502 static void setup_bfd_headers (bfd *, bfd *);
503 static void copy_relocations_in_section (bfd *, asection *, void *);
504 static void copy_section (bfd *, asection *, void *);
505 static void get_sections (bfd *, asection *, void *);
506 static int compare_section_lma (const void *, const void *);
507 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
508 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
509 static const char *lookup_sym_redefinition (const char *);
510 \f
511 static void
512 copy_usage (FILE *stream, int exit_status)
513 {
514 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
515 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
516 fprintf (stream, _(" The options are:\n"));
517 fprintf (stream, _("\
518 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
519 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
520 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
521 -F --target <bfdname> Set both input and output format to <bfdname>\n\
522 --debugging Convert debugging information, if possible\n\
523 -p --preserve-dates Copy modified/access timestamps to the output\n"));
524 if (DEFAULT_AR_DETERMINISTIC)
525 fprintf (stream, _("\
526 -D --enable-deterministic-archives\n\
527 Produce deterministic output when stripping archives (default)\n\
528 -U --disable-deterministic-archives\n\
529 Disable -D behavior\n"));
530 else
531 fprintf (stream, _("\
532 -D --enable-deterministic-archives\n\
533 Produce deterministic output when stripping archives\n\
534 -U --disable-deterministic-archives\n\
535 Disable -D behavior (default)\n"));
536 fprintf (stream, _("\
537 -j --only-section <name> Only copy section <name> into the output\n\
538 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
539 -R --remove-section <name> Remove section <name> from the output\n\
540 -S --strip-all Remove all symbol and relocation information\n\
541 -g --strip-debug Remove all debugging symbols & sections\n\
542 --strip-dwo Remove all DWO sections\n\
543 --strip-unneeded Remove all symbols not needed by relocations\n\
544 -N --strip-symbol <name> Do not copy symbol <name>\n\
545 --strip-unneeded-symbol <name>\n\
546 Do not copy symbol <name> unless needed by\n\
547 relocations\n\
548 --only-keep-debug Strip everything but the debug information\n\
549 --extract-dwo Copy only DWO sections\n\
550 --extract-symbol Remove section contents but keep symbols\n\
551 -K --keep-symbol <name> Do not strip symbol <name>\n\
552 --keep-file-symbols Do not strip file symbol(s)\n\
553 --localize-hidden Turn all ELF hidden symbols into locals\n\
554 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
555 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
556 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
557 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
558 --weaken Force all global symbols to be marked as weak\n\
559 -w --wildcard Permit wildcard in symbol comparison\n\
560 -x --discard-all Remove all non-global symbols\n\
561 -X --discard-locals Remove any compiler-generated symbols\n\
562 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
563 --interleave-width <number> Set N for --interleave\n\
564 -b --byte <num> Select byte <num> in every interleaved block\n\
565 --gap-fill <val> Fill gaps between sections with <val>\n\
566 --pad-to <addr> Pad the last section up to address <addr>\n\
567 --set-start <addr> Set the start address to <addr>\n\
568 {--change-start|--adjust-start} <incr>\n\
569 Add <incr> to the start address\n\
570 {--change-addresses|--adjust-vma} <incr>\n\
571 Add <incr> to LMA, VMA and start addresses\n\
572 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
573 Change LMA and VMA of section <name> by <val>\n\
574 --change-section-lma <name>{=|+|-}<val>\n\
575 Change the LMA of section <name> by <val>\n\
576 --change-section-vma <name>{=|+|-}<val>\n\
577 Change the VMA of section <name> by <val>\n\
578 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
579 Warn if a named section does not exist\n\
580 --set-section-flags <name>=<flags>\n\
581 Set section <name>'s properties to <flags>\n\
582 --add-section <name>=<file> Add section <name> found in <file> to output\n\
583 --update-section <name>=<file>\n\
584 Update contents of section <name> with\n\
585 contents found in <file>\n\
586 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
587 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
588 --long-section-names {enable|disable|keep}\n\
589 Handle long section names in Coff objects.\n\
590 --change-leading-char Force output format's leading character style\n\
591 --remove-leading-char Remove leading character from global symbols\n\
592 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
593 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
594 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
595 listed in <file>\n\
596 --srec-len <number> Restrict the length of generated Srecords\n\
597 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
598 --strip-symbols <file> -N for all symbols listed in <file>\n\
599 --strip-unneeded-symbols <file>\n\
600 --strip-unneeded-symbol for all symbols listed\n\
601 in <file>\n\
602 --keep-symbols <file> -K for all symbols listed in <file>\n\
603 --localize-symbols <file> -L for all symbols listed in <file>\n\
604 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
605 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
606 --weaken-symbols <file> -W for all symbols listed in <file>\n\
607 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
608 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
609 --writable-text Mark the output text as writable\n\
610 --readonly-text Make the output text write protected\n\
611 --pure Mark the output file as demand paged\n\
612 --impure Mark the output file as impure\n\
613 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
614 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
615 --prefix-alloc-sections <prefix>\n\
616 Add <prefix> to start of every allocatable\n\
617 section name\n\
618 --file-alignment <num> Set PE file alignment to <num>\n\
619 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
620 <commit>\n\
621 --image-base <address> Set PE image base to <address>\n\
622 --section-alignment <num> Set PE section alignment to <num>\n\
623 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
624 <commit>\n\
625 --subsystem <name>[:<version>]\n\
626 Set PE subsystem to <name> [& <version>]\n\
627 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
628 Compress DWARF debug sections using zlib\n\
629 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
630 --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\
631 type\n\
632 -v --verbose List all object files modified\n\
633 @<file> Read options from <file>\n\
634 -V --version Display this program's version number\n\
635 -h --help Display this output\n\
636 --info List object formats & architectures supported\n\
637 "));
638 list_supported_targets (program_name, stream);
639 if (REPORT_BUGS_TO[0] && exit_status == 0)
640 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
641 exit (exit_status);
642 }
643
644 static void
645 strip_usage (FILE *stream, int exit_status)
646 {
647 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
648 fprintf (stream, _(" Removes symbols and sections from files\n"));
649 fprintf (stream, _(" The options are:\n"));
650 fprintf (stream, _("\
651 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
652 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
653 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
654 -p --preserve-dates Copy modified/access timestamps to the output\n\
655 "));
656 if (DEFAULT_AR_DETERMINISTIC)
657 fprintf (stream, _("\
658 -D --enable-deterministic-archives\n\
659 Produce deterministic output when stripping archives (default)\n\
660 -U --disable-deterministic-archives\n\
661 Disable -D behavior\n"));
662 else
663 fprintf (stream, _("\
664 -D --enable-deterministic-archives\n\
665 Produce deterministic output when stripping archives\n\
666 -U --disable-deterministic-archives\n\
667 Disable -D behavior (default)\n"));
668 fprintf (stream, _("\
669 -R --remove-section=<name> Also remove section <name> from the output\n\
670 -s --strip-all Remove all symbol and relocation information\n\
671 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
672 --strip-dwo Remove all DWO sections\n\
673 --strip-unneeded Remove all symbols not needed by relocations\n\
674 --only-keep-debug Strip everything but the debug information\n\
675 -N --strip-symbol=<name> Do not copy symbol <name>\n\
676 -K --keep-symbol=<name> Do not strip symbol <name>\n\
677 --keep-file-symbols Do not strip file symbol(s)\n\
678 -w --wildcard Permit wildcard in symbol comparison\n\
679 -x --discard-all Remove all non-global symbols\n\
680 -X --discard-locals Remove any compiler-generated symbols\n\
681 -v --verbose List all object files modified\n\
682 -V --version Display this program's version number\n\
683 -h --help Display this output\n\
684 --info List object formats & architectures supported\n\
685 -o <file> Place stripped output into <file>\n\
686 "));
687
688 list_supported_targets (program_name, stream);
689 if (REPORT_BUGS_TO[0] && exit_status == 0)
690 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
691 exit (exit_status);
692 }
693
694 /* Parse section flags into a flagword, with a fatal error if the
695 string can't be parsed. */
696
697 static flagword
698 parse_flags (const char *s)
699 {
700 flagword ret;
701 const char *snext;
702 int len;
703
704 ret = SEC_NO_FLAGS;
705
706 do
707 {
708 snext = strchr (s, ',');
709 if (snext == NULL)
710 len = strlen (s);
711 else
712 {
713 len = snext - s;
714 ++snext;
715 }
716
717 if (0) ;
718 #define PARSE_FLAG(fname,fval) \
719 else if (strncasecmp (fname, s, len) == 0) ret |= fval
720 PARSE_FLAG ("alloc", SEC_ALLOC);
721 PARSE_FLAG ("load", SEC_LOAD);
722 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
723 PARSE_FLAG ("readonly", SEC_READONLY);
724 PARSE_FLAG ("debug", SEC_DEBUGGING);
725 PARSE_FLAG ("code", SEC_CODE);
726 PARSE_FLAG ("data", SEC_DATA);
727 PARSE_FLAG ("rom", SEC_ROM);
728 PARSE_FLAG ("share", SEC_COFF_SHARED);
729 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
730 PARSE_FLAG ("merge", SEC_MERGE);
731 PARSE_FLAG ("strings", SEC_STRINGS);
732 #undef PARSE_FLAG
733 else
734 {
735 char *copy;
736
737 copy = (char *) xmalloc (len + 1);
738 strncpy (copy, s, len);
739 copy[len] = '\0';
740 non_fatal (_("unrecognized section flag `%s'"), copy);
741 fatal (_("supported flags: %s"),
742 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
743 }
744
745 s = snext;
746 }
747 while (s != NULL);
748
749 return ret;
750 }
751
752 /* Parse symbol flags into a flagword, with a fatal error if the
753 string can't be parsed. */
754
755 static flagword
756 parse_symflags (const char *s, char **other)
757 {
758 flagword ret;
759 const char *snext;
760 size_t len;
761
762 ret = BSF_NO_FLAGS;
763
764 do
765 {
766 snext = strchr (s, ',');
767 if (snext == NULL)
768 len = strlen (s);
769 else
770 {
771 len = snext - s;
772 ++snext;
773 }
774
775 #define PARSE_FLAG(fname, fval) \
776 else if (len == sizeof fname - 1 \
777 && strncasecmp (fname, s, len) == 0) \
778 ret |= fval
779
780 #define PARSE_OTHER(fname, fval) \
781 else if (len >= sizeof fname \
782 && strncasecmp (fname, s, sizeof fname - 1) == 0) \
783 fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1)
784
785 if (0) ;
786 PARSE_FLAG ("local", BSF_LOCAL);
787 PARSE_FLAG ("global", BSF_GLOBAL);
788 PARSE_FLAG ("export", BSF_EXPORT);
789 PARSE_FLAG ("debug", BSF_DEBUGGING);
790 PARSE_FLAG ("function", BSF_FUNCTION);
791 PARSE_FLAG ("weak", BSF_WEAK);
792 PARSE_FLAG ("section", BSF_SECTION_SYM);
793 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR);
794 PARSE_FLAG ("warning", BSF_WARNING);
795 PARSE_FLAG ("indirect", BSF_INDIRECT);
796 PARSE_FLAG ("file", BSF_FILE);
797 PARSE_FLAG ("object", BSF_OBJECT);
798 PARSE_FLAG ("synthetic", BSF_SYNTHETIC);
799 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION | BSF_FUNCTION);
800 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE | BSF_OBJECT);
801 PARSE_OTHER ("before=", *other);
802
803 #undef PARSE_FLAG
804 #undef PARSE_OTHER
805 else
806 {
807 char *copy;
808
809 copy = (char *) xmalloc (len + 1);
810 strncpy (copy, s, len);
811 copy[len] = '\0';
812 non_fatal (_("unrecognized symbol flag `%s'"), copy);
813 fatal (_("supported flags: %s"),
814 "local, global, export, debug, function, weak, section, "
815 "constructor, warning, indirect, file, object, synthetic, "
816 "indirect-function, unique-object, before=<othersym>");
817 }
818
819 s = snext;
820 }
821 while (s != NULL);
822
823 return ret;
824 }
825
826 /* Find and optionally add an entry in the change_sections list.
827
828 We need to be careful in how we match section names because of the support
829 for wildcard characters. For example suppose that the user has invoked
830 objcopy like this:
831
832 --set-section-flags .debug_*=debug
833 --set-section-flags .debug_str=readonly,debug
834 --change-section-address .debug_*ranges=0x1000
835
836 With the idea that all debug sections will receive the DEBUG flag, the
837 .debug_str section will also receive the READONLY flag and the
838 .debug_ranges and .debug_aranges sections will have their address set to
839 0x1000. (This may not make much sense, but it is just an example).
840
841 When adding the section name patterns to the section list we need to make
842 sure that previous entries do not match with the new entry, unless the
843 match is exact. (In which case we assume that the user is overriding
844 the previous entry with the new context).
845
846 When matching real section names to the section list we make use of the
847 wildcard characters, but we must do so in context. Eg if we are setting
848 section addresses then we match for .debug_ranges but not for .debug_info.
849
850 Finally, if ADD is false and we do find a match, we mark the section list
851 entry as used. */
852
853 static struct section_list *
854 find_section_list (const char *name, bfd_boolean add, unsigned int context)
855 {
856 struct section_list *p;
857
858 /* assert ((context & ((1 << 7) - 1)) != 0); */
859
860 for (p = change_sections; p != NULL; p = p->next)
861 {
862 if (add)
863 {
864 if (strcmp (p->pattern, name) == 0)
865 {
866 /* Check for context conflicts. */
867 if (((p->context & SECTION_CONTEXT_REMOVE)
868 && (context & SECTION_CONTEXT_COPY))
869 || ((context & SECTION_CONTEXT_REMOVE)
870 && (p->context & SECTION_CONTEXT_COPY)))
871 fatal (_("error: %s both copied and removed"), name);
872
873 if (((p->context & SECTION_CONTEXT_SET_VMA)
874 && (context & SECTION_CONTEXT_ALTER_VMA))
875 || ((context & SECTION_CONTEXT_SET_VMA)
876 && (context & SECTION_CONTEXT_ALTER_VMA)))
877 fatal (_("error: %s both sets and alters VMA"), name);
878
879 if (((p->context & SECTION_CONTEXT_SET_LMA)
880 && (context & SECTION_CONTEXT_ALTER_LMA))
881 || ((context & SECTION_CONTEXT_SET_LMA)
882 && (context & SECTION_CONTEXT_ALTER_LMA)))
883 fatal (_("error: %s both sets and alters LMA"), name);
884
885 /* Extend the context. */
886 p->context |= context;
887 return p;
888 }
889 }
890 /* If we are not adding a new name/pattern then
891 only check for a match if the context applies. */
892 else if ((p->context & context)
893 /* We could check for the presence of wildchar characters
894 first and choose between calling strcmp and fnmatch,
895 but is that really worth it ? */
896 && fnmatch (p->pattern, name, 0) == 0)
897 {
898 p->used = TRUE;
899 return p;
900 }
901 }
902
903 if (! add)
904 return NULL;
905
906 p = (struct section_list *) xmalloc (sizeof (struct section_list));
907 p->pattern = name;
908 p->used = FALSE;
909 p->context = context;
910 p->vma_val = 0;
911 p->lma_val = 0;
912 p->flags = 0;
913 p->next = change_sections;
914 change_sections = p;
915
916 return p;
917 }
918
919 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
920
921 static int
922 eq_string (const void *s1, const void *s2)
923 {
924 return strcmp ((const char *) s1, (const char *) s2) == 0;
925 }
926
927 static htab_t
928 create_symbol_htab (void)
929 {
930 return htab_create_alloc (16, htab_hash_string, eq_string, NULL, xcalloc, free);
931 }
932
933 static void
934 create_symbol_htabs (void)
935 {
936 strip_specific_htab = create_symbol_htab ();
937 strip_unneeded_htab = create_symbol_htab ();
938 keep_specific_htab = create_symbol_htab ();
939 localize_specific_htab = create_symbol_htab ();
940 globalize_specific_htab = create_symbol_htab ();
941 keepglobal_specific_htab = create_symbol_htab ();
942 weaken_specific_htab = create_symbol_htab ();
943 }
944
945 /* Add a symbol to strip_specific_list. */
946
947 static void
948 add_specific_symbol (const char *name, htab_t htab)
949 {
950 *htab_find_slot (htab, name, INSERT) = (char *) name;
951 }
952
953 /* Add symbols listed in `filename' to strip_specific_list. */
954
955 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
956 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
957
958 static void
959 add_specific_symbols (const char *filename, htab_t htab)
960 {
961 off_t size;
962 FILE * f;
963 char * line;
964 char * buffer;
965 unsigned int line_count;
966
967 size = get_file_size (filename);
968 if (size == 0)
969 {
970 status = 1;
971 return;
972 }
973
974 buffer = (char *) xmalloc (size + 2);
975 f = fopen (filename, FOPEN_RT);
976 if (f == NULL)
977 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
978
979 if (fread (buffer, 1, size, f) == 0 || ferror (f))
980 fatal (_("%s: fread failed"), filename);
981
982 fclose (f);
983 buffer [size] = '\n';
984 buffer [size + 1] = '\0';
985
986 line_count = 1;
987
988 for (line = buffer; * line != '\0'; line ++)
989 {
990 char * eol;
991 char * name;
992 char * name_end;
993 int finished = FALSE;
994
995 for (eol = line;; eol ++)
996 {
997 switch (* eol)
998 {
999 case '\n':
1000 * eol = '\0';
1001 /* Cope with \n\r. */
1002 if (eol[1] == '\r')
1003 ++ eol;
1004 finished = TRUE;
1005 break;
1006
1007 case '\r':
1008 * eol = '\0';
1009 /* Cope with \r\n. */
1010 if (eol[1] == '\n')
1011 ++ eol;
1012 finished = TRUE;
1013 break;
1014
1015 case 0:
1016 finished = TRUE;
1017 break;
1018
1019 case '#':
1020 /* Line comment, Terminate the line here, in case a
1021 name is present and then allow the rest of the
1022 loop to find the real end of the line. */
1023 * eol = '\0';
1024 break;
1025
1026 default:
1027 break;
1028 }
1029
1030 if (finished)
1031 break;
1032 }
1033
1034 /* A name may now exist somewhere between 'line' and 'eol'.
1035 Strip off leading whitespace and trailing whitespace,
1036 then add it to the list. */
1037 for (name = line; IS_WHITESPACE (* name); name ++)
1038 ;
1039 for (name_end = name;
1040 (! IS_WHITESPACE (* name_end))
1041 && (! IS_LINE_TERMINATOR (* name_end));
1042 name_end ++)
1043 ;
1044
1045 if (! IS_LINE_TERMINATOR (* name_end))
1046 {
1047 char * extra;
1048
1049 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
1050 ;
1051
1052 if (! IS_LINE_TERMINATOR (* extra))
1053 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1054 filename, line_count);
1055 }
1056
1057 * name_end = '\0';
1058
1059 if (name_end > name)
1060 add_specific_symbol (name, htab);
1061
1062 /* Advance line pointer to end of line. The 'eol ++' in the for
1063 loop above will then advance us to the start of the next line. */
1064 line = eol;
1065 line_count ++;
1066 }
1067 }
1068
1069 /* See whether a symbol should be stripped or kept
1070 based on strip_specific_list and keep_symbols. */
1071
1072 static int
1073 is_specified_symbol_predicate (void **slot, void *data)
1074 {
1075 struct is_specified_symbol_predicate_data *d =
1076 (struct is_specified_symbol_predicate_data *) data;
1077 const char *slot_name = (char *) *slot;
1078
1079 if (*slot_name != '!')
1080 {
1081 if (! fnmatch (slot_name, d->name, 0))
1082 {
1083 d->found = TRUE;
1084 /* Continue traversal, there might be a non-match rule. */
1085 return 1;
1086 }
1087 }
1088 else
1089 {
1090 if (! fnmatch (slot_name + 1, d->name, 0))
1091 {
1092 d->found = FALSE;
1093 /* Stop traversal. */
1094 return 0;
1095 }
1096 }
1097
1098 /* Continue traversal. */
1099 return 1;
1100 }
1101
1102 static bfd_boolean
1103 is_specified_symbol (const char *name, htab_t htab)
1104 {
1105 if (wildcard)
1106 {
1107 struct is_specified_symbol_predicate_data data;
1108
1109 data.name = name;
1110 data.found = FALSE;
1111
1112 htab_traverse (htab, is_specified_symbol_predicate, &data);
1113
1114 return data.found;
1115 }
1116
1117 return htab_find (htab, name) != NULL;
1118 }
1119
1120 /* Return a pointer to the symbol used as a signature for GROUP. */
1121
1122 static asymbol *
1123 group_signature (asection *group)
1124 {
1125 bfd *abfd = group->owner;
1126 Elf_Internal_Shdr *ghdr;
1127
1128 /* PR 20089: An earlier error may have prevented us from loading the symbol table. */
1129 if (isympp == NULL)
1130 return NULL;
1131
1132 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
1133 return NULL;
1134
1135 ghdr = &elf_section_data (group)->this_hdr;
1136 if (ghdr->sh_link < elf_numsections (abfd))
1137 {
1138 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1139 Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
1140
1141 if (symhdr->sh_type == SHT_SYMTAB
1142 && ghdr->sh_info > 0
1143 && ghdr->sh_info < (symhdr->sh_size / bed->s->sizeof_sym))
1144 return isympp[ghdr->sh_info - 1];
1145 }
1146 return NULL;
1147 }
1148
1149 /* Return TRUE if the section is a DWO section. */
1150
1151 static bfd_boolean
1152 is_dwo_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1153 {
1154 const char *name = bfd_get_section_name (abfd, sec);
1155 int len = strlen (name);
1156
1157 return strncmp (name + len - 4, ".dwo", 4) == 0;
1158 }
1159
1160 /* Return TRUE if section SEC is in the update list. */
1161
1162 static bfd_boolean
1163 is_update_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1164 {
1165 if (update_sections != NULL)
1166 {
1167 struct section_add *pupdate;
1168
1169 for (pupdate = update_sections;
1170 pupdate != NULL;
1171 pupdate = pupdate->next)
1172 {
1173 if (strcmp (sec->name, pupdate->name) == 0)
1174 return TRUE;
1175 }
1176 }
1177
1178 return FALSE;
1179 }
1180
1181 /* See if a non-group section is being removed. */
1182
1183 static bfd_boolean
1184 is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1185 {
1186 if (sections_removed || sections_copied)
1187 {
1188 struct section_list *p;
1189 struct section_list *q;
1190
1191 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE,
1192 SECTION_CONTEXT_REMOVE);
1193 q = find_section_list (bfd_get_section_name (abfd, sec), FALSE,
1194 SECTION_CONTEXT_COPY);
1195
1196 if (p && q)
1197 fatal (_("error: section %s matches both remove and copy options"),
1198 bfd_get_section_name (abfd, sec));
1199 if (p && is_update_section (abfd, sec))
1200 fatal (_("error: section %s matches both update and remove options"),
1201 bfd_get_section_name (abfd, sec));
1202
1203 if (p != NULL)
1204 return TRUE;
1205 if (sections_copied && q == NULL)
1206 return TRUE;
1207 }
1208
1209 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
1210 {
1211 if (strip_symbols == STRIP_DEBUG
1212 || strip_symbols == STRIP_UNNEEDED
1213 || strip_symbols == STRIP_ALL
1214 || discard_locals == LOCALS_ALL
1215 || convert_debugging)
1216 {
1217 /* By default we don't want to strip .reloc section.
1218 This section has for pe-coff special meaning. See
1219 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1220 if (strcmp (bfd_get_section_name (abfd, sec), ".reloc") != 0)
1221 return TRUE;
1222 }
1223
1224 if (strip_symbols == STRIP_DWO)
1225 return is_dwo_section (abfd, sec);
1226
1227 if (strip_symbols == STRIP_NONDEBUG)
1228 return FALSE;
1229 }
1230
1231 if (strip_symbols == STRIP_NONDWO)
1232 return !is_dwo_section (abfd, sec);
1233
1234 return FALSE;
1235 }
1236
1237 /* See if a section is being removed. */
1238
1239 static bfd_boolean
1240 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1241 {
1242 if (is_strip_section_1 (abfd, sec))
1243 return TRUE;
1244
1245 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
1246 {
1247 asymbol *gsym;
1248 const char *gname;
1249 asection *elt, *first;
1250
1251 /* PR binutils/3181
1252 If we are going to strip the group signature symbol, then
1253 strip the group section too. */
1254 gsym = group_signature (sec);
1255 if (gsym != NULL)
1256 gname = gsym->name;
1257 else
1258 gname = sec->name;
1259 if ((strip_symbols == STRIP_ALL
1260 && !is_specified_symbol (gname, keep_specific_htab))
1261 || is_specified_symbol (gname, strip_specific_htab))
1262 return TRUE;
1263
1264 /* Remove the group section if all members are removed. */
1265 first = elt = elf_next_in_group (sec);
1266 while (elt != NULL)
1267 {
1268 if (!is_strip_section_1 (abfd, elt))
1269 return FALSE;
1270 elt = elf_next_in_group (elt);
1271 if (elt == first)
1272 break;
1273 }
1274
1275 return TRUE;
1276 }
1277
1278 return FALSE;
1279 }
1280
1281 static bfd_boolean
1282 is_nondebug_keep_contents_section (bfd *ibfd, asection *isection)
1283 {
1284 /* Always keep ELF note sections. */
1285 if (ibfd->xvec->flavour == bfd_target_elf_flavour)
1286 return (elf_section_type (isection) == SHT_NOTE);
1287
1288 /* Always keep the .buildid section for PE/COFF.
1289
1290 Strictly, this should be written "always keep the section storing the debug
1291 directory", but that may be the .text section for objects produced by some
1292 tools, which it is not sensible to keep. */
1293 if (ibfd->xvec->flavour == bfd_target_coff_flavour)
1294 return (strcmp (bfd_get_section_name (ibfd, isection), ".buildid") == 0);
1295
1296 return FALSE;
1297 }
1298
1299 /* Return true if SYM is a hidden symbol. */
1300
1301 static bfd_boolean
1302 is_hidden_symbol (asymbol *sym)
1303 {
1304 elf_symbol_type *elf_sym;
1305
1306 elf_sym = elf_symbol_from (sym->the_bfd, sym);
1307 if (elf_sym != NULL)
1308 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
1309 {
1310 case STV_HIDDEN:
1311 case STV_INTERNAL:
1312 return TRUE;
1313 }
1314 return FALSE;
1315 }
1316
1317 static bfd_boolean
1318 need_sym_before (struct addsym_node **node, const char *sym)
1319 {
1320 int count;
1321 struct addsym_node *ptr = add_sym_list;
1322
1323 /* 'othersym' symbols are at the front of the list. */
1324 for (count = 0; count < add_symbols; count++)
1325 {
1326 if (!ptr->othersym)
1327 break;
1328 else if (strcmp (ptr->othersym, sym) == 0)
1329 {
1330 free (ptr->othersym);
1331 ptr->othersym = ""; /* Empty name is hopefully never a valid symbol name. */
1332 *node = ptr;
1333 return TRUE;
1334 }
1335 ptr = ptr->next;
1336 }
1337 return FALSE;
1338 }
1339
1340 static asymbol *
1341 create_new_symbol (struct addsym_node *ptr, bfd *obfd)
1342 {
1343 asymbol *sym = bfd_make_empty_symbol (obfd);
1344
1345 bfd_asymbol_name (sym) = ptr->symdef;
1346 sym->value = ptr->symval;
1347 sym->flags = ptr->flags;
1348 if (ptr->section)
1349 {
1350 asection *sec = bfd_get_section_by_name (obfd, ptr->section);
1351 if (!sec)
1352 fatal (_("Section %s not found"), ptr->section);
1353 sym->section = sec;
1354 }
1355 else
1356 sym->section = bfd_abs_section_ptr;
1357 return sym;
1358 }
1359
1360 /* Choose which symbol entries to copy; put the result in OSYMS.
1361 We don't copy in place, because that confuses the relocs.
1362 Return the number of symbols to print. */
1363
1364 static unsigned int
1365 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
1366 asymbol **isyms, long symcount)
1367 {
1368 asymbol **from = isyms, **to = osyms;
1369 long src_count = 0, dst_count = 0;
1370 int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
1371
1372 for (; src_count < symcount; src_count++)
1373 {
1374 asymbol *sym = from[src_count];
1375 flagword flags = sym->flags;
1376 char *name = (char *) bfd_asymbol_name (sym);
1377 bfd_boolean keep;
1378 bfd_boolean used_in_reloc = FALSE;
1379 bfd_boolean undefined;
1380 bfd_boolean rem_leading_char;
1381 bfd_boolean add_leading_char;
1382
1383 undefined = bfd_is_und_section (bfd_get_section (sym));
1384
1385 if (add_sym_list)
1386 {
1387 struct addsym_node *ptr;
1388
1389 if (need_sym_before (&ptr, name))
1390 to[dst_count++] = create_new_symbol (ptr, obfd);
1391 }
1392
1393 if (redefine_sym_list)
1394 {
1395 char *old_name, *new_name;
1396
1397 old_name = (char *) bfd_asymbol_name (sym);
1398 new_name = (char *) lookup_sym_redefinition (old_name);
1399 bfd_asymbol_name (sym) = new_name;
1400 name = new_name;
1401 }
1402
1403 /* Check if we will remove the current leading character. */
1404 rem_leading_char =
1405 (name[0] == bfd_get_symbol_leading_char (abfd))
1406 && (change_leading_char
1407 || (remove_leading_char
1408 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1409 || undefined
1410 || bfd_is_com_section (bfd_get_section (sym)))));
1411
1412 /* Check if we will add a new leading character. */
1413 add_leading_char =
1414 change_leading_char
1415 && (bfd_get_symbol_leading_char (obfd) != '\0')
1416 && (bfd_get_symbol_leading_char (abfd) == '\0'
1417 || (name[0] == bfd_get_symbol_leading_char (abfd)));
1418
1419 /* Short circuit for change_leading_char if we can do it in-place. */
1420 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
1421 {
1422 name[0] = bfd_get_symbol_leading_char (obfd);
1423 bfd_asymbol_name (sym) = name;
1424 rem_leading_char = FALSE;
1425 add_leading_char = FALSE;
1426 }
1427
1428 /* Remove leading char. */
1429 if (rem_leading_char)
1430 bfd_asymbol_name (sym) = ++name;
1431
1432 /* Add new leading char and/or prefix. */
1433 if (add_leading_char || prefix_symbols_string)
1434 {
1435 char *n, *ptr;
1436
1437 ptr = n = (char *) xmalloc (1 + strlen (prefix_symbols_string)
1438 + strlen (name) + 1);
1439 if (add_leading_char)
1440 *ptr++ = bfd_get_symbol_leading_char (obfd);
1441
1442 if (prefix_symbols_string)
1443 {
1444 strcpy (ptr, prefix_symbols_string);
1445 ptr += strlen (prefix_symbols_string);
1446 }
1447
1448 strcpy (ptr, name);
1449 bfd_asymbol_name (sym) = n;
1450 name = n;
1451 }
1452
1453 if (strip_symbols == STRIP_ALL)
1454 keep = FALSE;
1455 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
1456 || ((flags & BSF_SECTION_SYM) != 0
1457 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
1458 & BSF_KEEP) != 0))
1459 {
1460 keep = TRUE;
1461 used_in_reloc = TRUE;
1462 }
1463 else if (relocatable /* Relocatable file. */
1464 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1465 || bfd_is_com_section (bfd_get_section (sym))))
1466 keep = TRUE;
1467 else if (bfd_decode_symclass (sym) == 'I')
1468 /* Global symbols in $idata sections need to be retained
1469 even if relocatable is FALSE. External users of the
1470 library containing the $idata section may reference these
1471 symbols. */
1472 keep = TRUE;
1473 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1474 || (flags & BSF_WEAK) != 0
1475 || undefined
1476 || bfd_is_com_section (bfd_get_section (sym)))
1477 keep = strip_symbols != STRIP_UNNEEDED;
1478 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1479 keep = (strip_symbols != STRIP_DEBUG
1480 && strip_symbols != STRIP_UNNEEDED
1481 && ! convert_debugging);
1482 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
1483 /* COMDAT sections store special information in local
1484 symbols, so we cannot risk stripping any of them. */
1485 keep = TRUE;
1486 else /* Local symbol. */
1487 keep = (strip_symbols != STRIP_UNNEEDED
1488 && (discard_locals != LOCALS_ALL
1489 && (discard_locals != LOCALS_START_L
1490 || ! bfd_is_local_label (abfd, sym))));
1491
1492 if (keep && is_specified_symbol (name, strip_specific_htab))
1493 {
1494 /* There are multiple ways to set 'keep' above, but if it
1495 was the relocatable symbol case, then that's an error. */
1496 if (used_in_reloc)
1497 {
1498 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1499 status = 1;
1500 }
1501 else
1502 keep = FALSE;
1503 }
1504
1505 if (keep
1506 && !(flags & BSF_KEEP)
1507 && is_specified_symbol (name, strip_unneeded_htab))
1508 keep = FALSE;
1509
1510 if (!keep
1511 && ((keep_file_symbols && (flags & BSF_FILE))
1512 || is_specified_symbol (name, keep_specific_htab)))
1513 keep = TRUE;
1514
1515 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
1516 keep = FALSE;
1517
1518 if (keep)
1519 {
1520 if ((flags & BSF_GLOBAL) != 0
1521 && (weaken || is_specified_symbol (name, weaken_specific_htab)))
1522 {
1523 sym->flags &= ~ BSF_GLOBAL;
1524 sym->flags |= BSF_WEAK;
1525 }
1526
1527 if (!undefined
1528 && (flags & (BSF_GLOBAL | BSF_WEAK))
1529 && (is_specified_symbol (name, localize_specific_htab)
1530 || (htab_elements (keepglobal_specific_htab) != 0
1531 && ! is_specified_symbol (name, keepglobal_specific_htab))
1532 || (localize_hidden && is_hidden_symbol (sym))))
1533 {
1534 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1535 sym->flags |= BSF_LOCAL;
1536 }
1537
1538 if (!undefined
1539 && (flags & BSF_LOCAL)
1540 && is_specified_symbol (name, globalize_specific_htab))
1541 {
1542 sym->flags &= ~ BSF_LOCAL;
1543 sym->flags |= BSF_GLOBAL;
1544 }
1545
1546 to[dst_count++] = sym;
1547 }
1548 }
1549 if (add_sym_list)
1550 {
1551 struct addsym_node *ptr = add_sym_list;
1552
1553 for (src_count = 0; src_count < add_symbols; src_count++)
1554 {
1555 if (ptr->othersym)
1556 {
1557 if (strcmp (ptr->othersym, ""))
1558 fatal (_("'before=%s' not found"), ptr->othersym);
1559 }
1560 else
1561 to[dst_count++] = create_new_symbol (ptr, obfd);
1562
1563 ptr = ptr->next;
1564 }
1565 }
1566
1567 to[dst_count] = NULL;
1568
1569 return dst_count;
1570 }
1571
1572 /* Find the redefined name of symbol SOURCE. */
1573
1574 static const char *
1575 lookup_sym_redefinition (const char *source)
1576 {
1577 struct redefine_node *list;
1578
1579 for (list = redefine_sym_list; list != NULL; list = list->next)
1580 if (strcmp (source, list->source) == 0)
1581 return list->target;
1582
1583 return source;
1584 }
1585
1586 /* Add a node to a symbol redefine list. */
1587
1588 static void
1589 redefine_list_append (const char *cause, const char *source, const char *target)
1590 {
1591 struct redefine_node **p;
1592 struct redefine_node *list;
1593 struct redefine_node *new_node;
1594
1595 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1596 {
1597 if (strcmp (source, list->source) == 0)
1598 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1599 cause, source);
1600
1601 if (strcmp (target, list->target) == 0)
1602 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1603 cause, target);
1604 }
1605
1606 new_node = (struct redefine_node *) xmalloc (sizeof (struct redefine_node));
1607
1608 new_node->source = strdup (source);
1609 new_node->target = strdup (target);
1610 new_node->next = NULL;
1611
1612 *p = new_node;
1613 }
1614
1615 /* Handle the --redefine-syms option. Read lines containing "old new"
1616 from the file, and add them to the symbol redefine list. */
1617
1618 static void
1619 add_redefine_syms_file (const char *filename)
1620 {
1621 FILE *file;
1622 char *buf;
1623 size_t bufsize;
1624 size_t len;
1625 size_t outsym_off;
1626 int c, lineno;
1627
1628 file = fopen (filename, "r");
1629 if (file == NULL)
1630 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1631 filename, strerror (errno));
1632
1633 bufsize = 100;
1634 buf = (char *) xmalloc (bufsize + 1 /* For the terminating NUL. */);
1635
1636 lineno = 1;
1637 c = getc (file);
1638 len = 0;
1639 outsym_off = 0;
1640 while (c != EOF)
1641 {
1642 /* Collect the input symbol name. */
1643 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1644 {
1645 if (c == '#')
1646 goto comment;
1647 buf[len++] = c;
1648 if (len >= bufsize)
1649 {
1650 bufsize *= 2;
1651 buf = (char *) xrealloc (buf, bufsize + 1);
1652 }
1653 c = getc (file);
1654 }
1655 buf[len++] = '\0';
1656 if (c == EOF)
1657 break;
1658
1659 /* Eat white space between the symbol names. */
1660 while (IS_WHITESPACE (c))
1661 c = getc (file);
1662 if (c == '#' || IS_LINE_TERMINATOR (c))
1663 goto comment;
1664 if (c == EOF)
1665 break;
1666
1667 /* Collect the output symbol name. */
1668 outsym_off = len;
1669 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1670 {
1671 if (c == '#')
1672 goto comment;
1673 buf[len++] = c;
1674 if (len >= bufsize)
1675 {
1676 bufsize *= 2;
1677 buf = (char *) xrealloc (buf, bufsize + 1);
1678 }
1679 c = getc (file);
1680 }
1681 buf[len++] = '\0';
1682 if (c == EOF)
1683 break;
1684
1685 /* Eat white space at end of line. */
1686 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1687 c = getc (file);
1688 if (c == '#')
1689 goto comment;
1690 /* Handle \r\n. */
1691 if ((c == '\r' && (c = getc (file)) == '\n')
1692 || c == '\n' || c == EOF)
1693 {
1694 end_of_line:
1695 /* Append the redefinition to the list. */
1696 if (buf[0] != '\0')
1697 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1698
1699 lineno++;
1700 len = 0;
1701 outsym_off = 0;
1702 if (c == EOF)
1703 break;
1704 c = getc (file);
1705 continue;
1706 }
1707 else
1708 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1709 comment:
1710 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1711 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1712 buf[len++] = '\0';
1713
1714 /* Eat the rest of the line and finish it. */
1715 while (c != '\n' && c != EOF)
1716 c = getc (file);
1717 goto end_of_line;
1718 }
1719
1720 if (len != 0)
1721 fatal (_("%s:%d: premature end of file"), filename, lineno);
1722
1723 free (buf);
1724 }
1725
1726 /* Copy unkown object file IBFD onto OBFD.
1727 Returns TRUE upon success, FALSE otherwise. */
1728
1729 static bfd_boolean
1730 copy_unknown_object (bfd *ibfd, bfd *obfd)
1731 {
1732 char *cbuf;
1733 int tocopy;
1734 long ncopied;
1735 long size;
1736 struct stat buf;
1737
1738 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1739 {
1740 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1741 return FALSE;
1742 }
1743
1744 size = buf.st_size;
1745 if (size < 0)
1746 {
1747 non_fatal (_("stat returns negative size for `%s'"),
1748 bfd_get_archive_filename (ibfd));
1749 return FALSE;
1750 }
1751
1752 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1753 {
1754 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1755 return FALSE;
1756 }
1757
1758 if (verbose)
1759 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1760 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1761
1762 cbuf = (char *) xmalloc (BUFSIZE);
1763 ncopied = 0;
1764 while (ncopied < size)
1765 {
1766 tocopy = size - ncopied;
1767 if (tocopy > BUFSIZE)
1768 tocopy = BUFSIZE;
1769
1770 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1771 != (bfd_size_type) tocopy)
1772 {
1773 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1774 free (cbuf);
1775 return FALSE;
1776 }
1777
1778 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1779 != (bfd_size_type) tocopy)
1780 {
1781 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1782 free (cbuf);
1783 return FALSE;
1784 }
1785
1786 ncopied += tocopy;
1787 }
1788
1789 /* We should at least to be able to read it back when copying an
1790 unknown object in an archive. */
1791 chmod (bfd_get_filename (obfd), buf.st_mode | S_IRUSR);
1792 free (cbuf);
1793 return TRUE;
1794 }
1795
1796 /* Copy object file IBFD onto OBFD.
1797 Returns TRUE upon success, FALSE otherwise. */
1798
1799 static bfd_boolean
1800 copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
1801 {
1802 bfd_vma start;
1803 long symcount;
1804 asection **osections = NULL;
1805 asection *gnu_debuglink_section = NULL;
1806 bfd_size_type *gaps = NULL;
1807 bfd_size_type max_gap = 0;
1808 long symsize;
1809 void *dhandle;
1810 enum bfd_architecture iarch;
1811 unsigned int imach;
1812 unsigned int c, i;
1813
1814 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1815 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1816 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1817 {
1818 /* PR 17636: Call non-fatal so that we return to our parent who
1819 may need to tidy temporary files. */
1820 non_fatal (_("Unable to change endianness of input file(s)"));
1821 return FALSE;
1822 }
1823
1824 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1825 {
1826 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1827 return FALSE;
1828 }
1829
1830 if (ibfd->sections == NULL)
1831 {
1832 non_fatal (_("error: the input file '%s' has no sections"),
1833 bfd_get_archive_filename (ibfd));
1834 return FALSE;
1835 }
1836
1837 if (ibfd->xvec->flavour != bfd_target_elf_flavour)
1838 {
1839 if ((do_debug_sections & compress) != 0
1840 && do_debug_sections != compress)
1841 {
1842 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1843 bfd_get_archive_filename (ibfd));
1844 return FALSE;
1845 }
1846
1847 if (do_elf_stt_common)
1848 {
1849 non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"),
1850 bfd_get_archive_filename (ibfd));
1851 return FALSE;
1852 }
1853 }
1854
1855 if (verbose)
1856 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1857 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1858 bfd_get_filename (obfd), bfd_get_target (obfd));
1859
1860 if (extract_symbol)
1861 start = 0;
1862 else
1863 {
1864 if (set_start_set)
1865 start = set_start;
1866 else
1867 start = bfd_get_start_address (ibfd);
1868 start += change_start;
1869 }
1870
1871 /* Neither the start address nor the flags
1872 need to be set for a core file. */
1873 if (bfd_get_format (obfd) != bfd_core)
1874 {
1875 flagword flags;
1876
1877 flags = bfd_get_file_flags (ibfd);
1878 flags |= bfd_flags_to_set;
1879 flags &= ~bfd_flags_to_clear;
1880 flags &= bfd_applicable_file_flags (obfd);
1881
1882 if (strip_symbols == STRIP_ALL)
1883 flags &= ~HAS_RELOC;
1884
1885 if (!bfd_set_start_address (obfd, start)
1886 || !bfd_set_file_flags (obfd, flags))
1887 {
1888 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1889 return FALSE;
1890 }
1891 }
1892
1893 /* Copy architecture of input file to output file. */
1894 iarch = bfd_get_arch (ibfd);
1895 imach = bfd_get_mach (ibfd);
1896 if (input_arch)
1897 {
1898 if (bfd_get_arch_info (ibfd) == NULL
1899 || bfd_get_arch_info (ibfd)->arch == bfd_arch_unknown)
1900 {
1901 iarch = input_arch->arch;
1902 imach = input_arch->mach;
1903 }
1904 else
1905 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1906 bfd_get_archive_filename (ibfd));
1907 }
1908 if (!bfd_set_arch_mach (obfd, iarch, imach)
1909 && (ibfd->target_defaulted
1910 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1911 {
1912 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1913 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1914 bfd_get_archive_filename (ibfd));
1915 else
1916 non_fatal (_("Output file cannot represent architecture `%s'"),
1917 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1918 bfd_get_mach (ibfd)));
1919 return FALSE;
1920 }
1921
1922 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1923 {
1924 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1925 return FALSE;
1926 }
1927
1928 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
1929 && bfd_pei_p (obfd))
1930 {
1931 /* Set up PE parameters. */
1932 pe_data_type *pe = pe_data (obfd);
1933
1934 /* Copy PE parameters before changing them. */
1935 if (ibfd->xvec->flavour == bfd_target_coff_flavour
1936 && bfd_pei_p (ibfd))
1937 pe->pe_opthdr = pe_data (ibfd)->pe_opthdr;
1938
1939 if (pe_file_alignment != (bfd_vma) -1)
1940 pe->pe_opthdr.FileAlignment = pe_file_alignment;
1941 else
1942 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
1943
1944 if (pe_heap_commit != (bfd_vma) -1)
1945 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_commit;
1946
1947 if (pe_heap_reserve != (bfd_vma) -1)
1948 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_reserve;
1949
1950 if (pe_image_base != (bfd_vma) -1)
1951 pe->pe_opthdr.ImageBase = pe_image_base;
1952
1953 if (pe_section_alignment != (bfd_vma) -1)
1954 pe->pe_opthdr.SectionAlignment = pe_section_alignment;
1955 else
1956 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
1957
1958 if (pe_stack_commit != (bfd_vma) -1)
1959 pe->pe_opthdr.SizeOfStackCommit = pe_stack_commit;
1960
1961 if (pe_stack_reserve != (bfd_vma) -1)
1962 pe->pe_opthdr.SizeOfStackCommit = pe_stack_reserve;
1963
1964 if (pe_subsystem != -1)
1965 pe->pe_opthdr.Subsystem = pe_subsystem;
1966
1967 if (pe_major_subsystem_version != -1)
1968 pe->pe_opthdr.MajorSubsystemVersion = pe_major_subsystem_version;
1969
1970 if (pe_minor_subsystem_version != -1)
1971 pe->pe_opthdr.MinorSubsystemVersion = pe_minor_subsystem_version;
1972
1973 if (pe_file_alignment > pe_section_alignment)
1974 {
1975 char file_alignment[20], section_alignment[20];
1976
1977 sprintf_vma (file_alignment, pe_file_alignment);
1978 sprintf_vma (section_alignment, pe_section_alignment);
1979 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1980
1981 file_alignment, section_alignment);
1982 }
1983 }
1984
1985 if (isympp)
1986 free (isympp);
1987
1988 if (osympp != isympp)
1989 free (osympp);
1990
1991 isympp = NULL;
1992 osympp = NULL;
1993
1994 symsize = bfd_get_symtab_upper_bound (ibfd);
1995 if (symsize < 0)
1996 {
1997 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1998 return FALSE;
1999 }
2000
2001 osympp = isympp = (asymbol **) xmalloc (symsize);
2002 symcount = bfd_canonicalize_symtab (ibfd, isympp);
2003 if (symcount < 0)
2004 {
2005 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
2006 return FALSE;
2007 }
2008 /* PR 17512: file: d6323821
2009 If the symbol table could not be loaded do not pretend that we have
2010 any symbols. This trips us up later on when we load the relocs. */
2011 if (symcount == 0)
2012 {
2013 free (isympp);
2014 osympp = isympp = NULL;
2015 }
2016
2017 /* BFD mandates that all output sections be created and sizes set before
2018 any output is done. Thus, we traverse all sections multiple times. */
2019 bfd_map_over_sections (ibfd, setup_section, obfd);
2020
2021 if (!extract_symbol)
2022 setup_bfd_headers (ibfd, obfd);
2023
2024 if (add_sections != NULL)
2025 {
2026 struct section_add *padd;
2027 struct section_list *pset;
2028
2029 for (padd = add_sections; padd != NULL; padd = padd->next)
2030 {
2031 flagword flags;
2032
2033 pset = find_section_list (padd->name, FALSE,
2034 SECTION_CONTEXT_SET_FLAGS);
2035 if (pset != NULL)
2036 flags = pset->flags | SEC_HAS_CONTENTS;
2037 else
2038 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
2039
2040 /* bfd_make_section_with_flags() does not return very helpful
2041 error codes, so check for the most likely user error first. */
2042 if (bfd_get_section_by_name (obfd, padd->name))
2043 {
2044 bfd_nonfatal_message (NULL, obfd, NULL,
2045 _("can't add section '%s'"), padd->name);
2046 return FALSE;
2047 }
2048 else
2049 {
2050 /* We use LINKER_CREATED here so that the backend hooks
2051 will create any special section type information,
2052 instead of presuming we know what we're doing merely
2053 because we set the flags. */
2054 padd->section = bfd_make_section_with_flags
2055 (obfd, padd->name, flags | SEC_LINKER_CREATED);
2056 if (padd->section == NULL)
2057 {
2058 bfd_nonfatal_message (NULL, obfd, NULL,
2059 _("can't create section `%s'"),
2060 padd->name);
2061 return FALSE;
2062 }
2063 }
2064
2065 if (! bfd_set_section_size (obfd, padd->section, padd->size))
2066 {
2067 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2068 return FALSE;
2069 }
2070
2071 pset = find_section_list (padd->name, FALSE,
2072 SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA);
2073 if (pset != NULL
2074 && ! bfd_set_section_vma (obfd, padd->section, pset->vma_val))
2075 {
2076 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2077 return FALSE;
2078 }
2079
2080 pset = find_section_list (padd->name, FALSE,
2081 SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA);
2082 if (pset != NULL)
2083 {
2084 padd->section->lma = pset->lma_val;
2085
2086 if (! bfd_set_section_alignment
2087 (obfd, padd->section,
2088 bfd_section_alignment (obfd, padd->section)))
2089 {
2090 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2091 return FALSE;
2092 }
2093 }
2094 }
2095 }
2096
2097 if (update_sections != NULL)
2098 {
2099 struct section_add *pupdate;
2100
2101 for (pupdate = update_sections;
2102 pupdate != NULL;
2103 pupdate = pupdate->next)
2104 {
2105 asection *osec;
2106
2107 pupdate->section = bfd_get_section_by_name (ibfd, pupdate->name);
2108 if (pupdate->section == NULL)
2109 {
2110 non_fatal (_("error: %s not found, can't be updated"), pupdate->name);
2111 return FALSE;
2112 }
2113
2114 osec = pupdate->section->output_section;
2115 if (! bfd_set_section_size (obfd, osec, pupdate->size))
2116 {
2117 bfd_nonfatal_message (NULL, obfd, osec, NULL);
2118 return FALSE;
2119 }
2120 }
2121 }
2122
2123 if (dump_sections != NULL)
2124 {
2125 struct section_add * pdump;
2126
2127 for (pdump = dump_sections; pdump != NULL; pdump = pdump->next)
2128 {
2129 asection * sec;
2130
2131 sec = bfd_get_section_by_name (ibfd, pdump->name);
2132 if (sec == NULL)
2133 {
2134 bfd_nonfatal_message (NULL, ibfd, NULL,
2135 _("can't dump section '%s' - it does not exist"),
2136 pdump->name);
2137 continue;
2138 }
2139
2140 if ((bfd_get_section_flags (ibfd, sec) & SEC_HAS_CONTENTS) == 0)
2141 {
2142 bfd_nonfatal_message (NULL, ibfd, sec,
2143 _("can't dump section - it has no contents"));
2144 continue;
2145 }
2146
2147 bfd_size_type size = bfd_get_section_size (sec);
2148 if (size == 0)
2149 {
2150 bfd_nonfatal_message (NULL, ibfd, sec,
2151 _("can't dump section - it is empty"));
2152 continue;
2153 }
2154
2155 FILE * f;
2156 f = fopen (pdump->filename, FOPEN_WB);
2157 if (f == NULL)
2158 {
2159 bfd_nonfatal_message (pdump->filename, NULL, NULL,
2160 _("could not open section dump file"));
2161 continue;
2162 }
2163
2164 bfd_byte * contents = xmalloc (size);
2165 if (bfd_get_section_contents (ibfd, sec, contents, 0, size))
2166 {
2167 if (fwrite (contents, 1, size, f) != size)
2168 {
2169 non_fatal (_("error writing section contents to %s (error: %s)"),
2170 pdump->filename,
2171 strerror (errno));
2172 return FALSE;
2173 }
2174 }
2175 else
2176 bfd_nonfatal_message (NULL, ibfd, sec,
2177 _("could not retrieve section contents"));
2178
2179 fclose (f);
2180 free (contents);
2181 }
2182 }
2183
2184 if (gnu_debuglink_filename != NULL)
2185 {
2186 /* PR 15125: Give a helpful warning message if
2187 the debuglink section already exists, and
2188 allow the rest of the copy to complete. */
2189 if (bfd_get_section_by_name (obfd, ".gnu_debuglink"))
2190 {
2191 non_fatal (_("%s: debuglink section already exists"),
2192 bfd_get_filename (obfd));
2193 gnu_debuglink_filename = NULL;
2194 }
2195 else
2196 {
2197 gnu_debuglink_section = bfd_create_gnu_debuglink_section
2198 (obfd, gnu_debuglink_filename);
2199
2200 if (gnu_debuglink_section == NULL)
2201 {
2202 bfd_nonfatal_message (NULL, obfd, NULL,
2203 _("cannot create debug link section `%s'"),
2204 gnu_debuglink_filename);
2205 return FALSE;
2206 }
2207
2208 /* Special processing for PE format files. We
2209 have no way to distinguish PE from COFF here. */
2210 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
2211 {
2212 bfd_vma debuglink_vma;
2213 asection * highest_section;
2214 asection * sec;
2215
2216 /* The PE spec requires that all sections be adjacent and sorted
2217 in ascending order of VMA. It also specifies that debug
2218 sections should be last. This is despite the fact that debug
2219 sections are not loaded into memory and so in theory have no
2220 use for a VMA.
2221
2222 This means that the debuglink section must be given a non-zero
2223 VMA which makes it contiguous with other debug sections. So
2224 walk the current section list, find the section with the
2225 highest VMA and start the debuglink section after that one. */
2226 for (sec = obfd->sections, highest_section = NULL;
2227 sec != NULL;
2228 sec = sec->next)
2229 if (sec->vma > 0
2230 && (highest_section == NULL
2231 || sec->vma > highest_section->vma))
2232 highest_section = sec;
2233
2234 if (highest_section)
2235 debuglink_vma = BFD_ALIGN (highest_section->vma
2236 + highest_section->size,
2237 /* FIXME: We ought to be using
2238 COFF_PAGE_SIZE here or maybe
2239 bfd_get_section_alignment() (if it
2240 was set) but since this is for PE
2241 and we know the required alignment
2242 it is easier just to hard code it. */
2243 0x1000);
2244 else
2245 /* Umm, not sure what to do in this case. */
2246 debuglink_vma = 0x1000;
2247
2248 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
2249 }
2250 }
2251 }
2252
2253 c = bfd_count_sections (obfd);
2254 if (c != 0
2255 && (gap_fill_set || pad_to_set))
2256 {
2257 asection **set;
2258
2259 /* We must fill in gaps between the sections and/or we must pad
2260 the last section to a specified address. We do this by
2261 grabbing a list of the sections, sorting them by VMA, and
2262 increasing the section sizes as required to fill the gaps.
2263 We write out the gap contents below. */
2264
2265 osections = (asection **) xmalloc (c * sizeof (asection *));
2266 set = osections;
2267 bfd_map_over_sections (obfd, get_sections, &set);
2268
2269 qsort (osections, c, sizeof (asection *), compare_section_lma);
2270
2271 gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type));
2272 memset (gaps, 0, c * sizeof (bfd_size_type));
2273
2274 if (gap_fill_set)
2275 {
2276 for (i = 0; i < c - 1; i++)
2277 {
2278 flagword flags;
2279 bfd_size_type size;
2280 bfd_vma gap_start, gap_stop;
2281
2282 flags = bfd_get_section_flags (obfd, osections[i]);
2283 if ((flags & SEC_HAS_CONTENTS) == 0
2284 || (flags & SEC_LOAD) == 0)
2285 continue;
2286
2287 size = bfd_section_size (obfd, osections[i]);
2288 gap_start = bfd_section_lma (obfd, osections[i]) + size;
2289 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
2290 if (gap_start < gap_stop)
2291 {
2292 if (! bfd_set_section_size (obfd, osections[i],
2293 size + (gap_stop - gap_start)))
2294 {
2295 bfd_nonfatal_message (NULL, obfd, osections[i],
2296 _("Can't fill gap after section"));
2297 status = 1;
2298 break;
2299 }
2300 gaps[i] = gap_stop - gap_start;
2301 if (max_gap < gap_stop - gap_start)
2302 max_gap = gap_stop - gap_start;
2303 }
2304 }
2305 }
2306
2307 if (pad_to_set)
2308 {
2309 bfd_vma lma;
2310 bfd_size_type size;
2311
2312 lma = bfd_section_lma (obfd, osections[c - 1]);
2313 size = bfd_section_size (obfd, osections[c - 1]);
2314 if (lma + size < pad_to)
2315 {
2316 if (! bfd_set_section_size (obfd, osections[c - 1],
2317 pad_to - lma))
2318 {
2319 bfd_nonfatal_message (NULL, obfd, osections[c - 1],
2320 _("can't add padding"));
2321 status = 1;
2322 }
2323 else
2324 {
2325 gaps[c - 1] = pad_to - (lma + size);
2326 if (max_gap < pad_to - (lma + size))
2327 max_gap = pad_to - (lma + size);
2328 }
2329 }
2330 }
2331 }
2332
2333 /* Symbol filtering must happen after the output sections
2334 have been created, but before their contents are set. */
2335 dhandle = NULL;
2336 if (convert_debugging)
2337 dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE);
2338
2339 if (strip_symbols == STRIP_DEBUG
2340 || strip_symbols == STRIP_ALL
2341 || strip_symbols == STRIP_UNNEEDED
2342 || strip_symbols == STRIP_NONDEBUG
2343 || strip_symbols == STRIP_DWO
2344 || strip_symbols == STRIP_NONDWO
2345 || discard_locals != LOCALS_UNDEF
2346 || localize_hidden
2347 || htab_elements (strip_specific_htab) != 0
2348 || htab_elements (keep_specific_htab) != 0
2349 || htab_elements (localize_specific_htab) != 0
2350 || htab_elements (globalize_specific_htab) != 0
2351 || htab_elements (keepglobal_specific_htab) != 0
2352 || htab_elements (weaken_specific_htab) != 0
2353 || prefix_symbols_string
2354 || sections_removed
2355 || sections_copied
2356 || convert_debugging
2357 || change_leading_char
2358 || remove_leading_char
2359 || redefine_sym_list
2360 || weaken
2361 || add_symbols)
2362 {
2363 /* Mark symbols used in output relocations so that they
2364 are kept, even if they are local labels or static symbols.
2365
2366 Note we iterate over the input sections examining their
2367 relocations since the relocations for the output sections
2368 haven't been set yet. mark_symbols_used_in_relocations will
2369 ignore input sections which have no corresponding output
2370 section. */
2371 if (strip_symbols != STRIP_ALL)
2372 bfd_map_over_sections (ibfd,
2373 mark_symbols_used_in_relocations,
2374 isympp);
2375 osympp = (asymbol **) xmalloc ((symcount + add_symbols + 1) * sizeof (asymbol *));
2376 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
2377 }
2378
2379 if (convert_debugging && dhandle != NULL)
2380 {
2381 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
2382 {
2383 status = 1;
2384 return FALSE;
2385 }
2386 }
2387
2388 bfd_set_symtab (obfd, osympp, symcount);
2389
2390 /* This has to happen before section positions are set. */
2391 bfd_map_over_sections (ibfd, copy_relocations_in_section, obfd);
2392
2393 /* This has to happen after the symbol table has been set. */
2394 bfd_map_over_sections (ibfd, copy_section, obfd);
2395
2396 if (add_sections != NULL)
2397 {
2398 struct section_add *padd;
2399
2400 for (padd = add_sections; padd != NULL; padd = padd->next)
2401 {
2402 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
2403 0, padd->size))
2404 {
2405 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2406 return FALSE;
2407 }
2408 }
2409 }
2410
2411 if (update_sections != NULL)
2412 {
2413 struct section_add *pupdate;
2414
2415 for (pupdate = update_sections;
2416 pupdate != NULL;
2417 pupdate = pupdate->next)
2418 {
2419 asection *osec;
2420
2421 osec = pupdate->section->output_section;
2422 if (! bfd_set_section_contents (obfd, osec, pupdate->contents,
2423 0, pupdate->size))
2424 {
2425 bfd_nonfatal_message (NULL, obfd, osec, NULL);
2426 return FALSE;
2427 }
2428 }
2429 }
2430
2431 if (gnu_debuglink_filename != NULL)
2432 {
2433 if (! bfd_fill_in_gnu_debuglink_section
2434 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
2435 {
2436 bfd_nonfatal_message (NULL, obfd, NULL,
2437 _("cannot fill debug link section `%s'"),
2438 gnu_debuglink_filename);
2439 return FALSE;
2440 }
2441 }
2442
2443 if (gap_fill_set || pad_to_set)
2444 {
2445 bfd_byte *buf;
2446
2447 /* Fill in the gaps. */
2448 if (max_gap > 8192)
2449 max_gap = 8192;
2450 buf = (bfd_byte *) xmalloc (max_gap);
2451 memset (buf, gap_fill, max_gap);
2452
2453 c = bfd_count_sections (obfd);
2454 for (i = 0; i < c; i++)
2455 {
2456 if (gaps[i] != 0)
2457 {
2458 bfd_size_type left;
2459 file_ptr off;
2460
2461 left = gaps[i];
2462 off = bfd_section_size (obfd, osections[i]) - left;
2463
2464 while (left > 0)
2465 {
2466 bfd_size_type now;
2467
2468 if (left > 8192)
2469 now = 8192;
2470 else
2471 now = left;
2472
2473 if (! bfd_set_section_contents (obfd, osections[i], buf,
2474 off, now))
2475 {
2476 bfd_nonfatal_message (NULL, obfd, osections[i], NULL);
2477 return FALSE;
2478 }
2479
2480 left -= now;
2481 off += now;
2482 }
2483 }
2484 }
2485 }
2486
2487 /* Allow the BFD backend to copy any private data it understands
2488 from the input BFD to the output BFD. This is done last to
2489 permit the routine to look at the filtered symbol table, which is
2490 important for the ECOFF code at least. */
2491 if (! bfd_copy_private_bfd_data (ibfd, obfd))
2492 {
2493 bfd_nonfatal_message (NULL, obfd, NULL,
2494 _("error copying private BFD data"));
2495 return FALSE;
2496 }
2497
2498 /* Switch to the alternate machine code. We have to do this at the
2499 very end, because we only initialize the header when we create
2500 the first section. */
2501 if (use_alt_mach_code != 0)
2502 {
2503 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
2504 {
2505 non_fatal (_("this target does not support %lu alternative machine codes"),
2506 use_alt_mach_code);
2507 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2508 {
2509 non_fatal (_("treating that number as an absolute e_machine value instead"));
2510 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
2511 }
2512 else
2513 non_fatal (_("ignoring the alternative value"));
2514 }
2515 }
2516
2517 return TRUE;
2518 }
2519
2520 /* Read each archive element in turn from IBFD, copy the
2521 contents to temp file, and keep the temp file handle.
2522 If 'force_output_target' is TRUE then make sure that
2523 all elements in the new archive are of the type
2524 'output_target'. */
2525
2526 static void
2527 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
2528 bfd_boolean force_output_target,
2529 const bfd_arch_info_type *input_arch)
2530 {
2531 struct name_list
2532 {
2533 struct name_list *next;
2534 const char *name;
2535 bfd *obfd;
2536 } *list, *l;
2537 bfd **ptr = &obfd->archive_head;
2538 bfd *this_element;
2539 char *dir;
2540 const char *filename;
2541
2542 /* Make a temp directory to hold the contents. */
2543 dir = make_tempdir (bfd_get_filename (obfd));
2544 if (dir == NULL)
2545 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2546 strerror (errno));
2547
2548 if (strip_symbols == STRIP_ALL)
2549 obfd->has_armap = FALSE;
2550 else
2551 obfd->has_armap = ibfd->has_armap;
2552 obfd->is_thin_archive = ibfd->is_thin_archive;
2553
2554 if (deterministic)
2555 obfd->flags |= BFD_DETERMINISTIC_OUTPUT;
2556
2557 list = NULL;
2558
2559 this_element = bfd_openr_next_archived_file (ibfd, NULL);
2560
2561 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
2562 {
2563 status = 1;
2564 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
2565 goto cleanup_and_exit;
2566 }
2567
2568 while (!status && this_element != NULL)
2569 {
2570 char *output_name;
2571 bfd *output_bfd;
2572 bfd *last_element;
2573 struct stat buf;
2574 int stat_status = 0;
2575 bfd_boolean del = TRUE;
2576 bfd_boolean ok_object;
2577
2578 /* PR binutils/17533: Do not allow directory traversal
2579 outside of the current directory tree by archive members. */
2580 if (! is_valid_archive_path (bfd_get_filename (this_element)))
2581 {
2582 non_fatal (_("illegal pathname found in archive member: %s"),
2583 bfd_get_filename (this_element));
2584 status = 1;
2585 goto cleanup_and_exit;
2586 }
2587
2588 /* Create an output file for this member. */
2589 output_name = concat (dir, "/",
2590 bfd_get_filename (this_element), (char *) 0);
2591
2592 /* If the file already exists, make another temp dir. */
2593 if (stat (output_name, &buf) >= 0)
2594 {
2595 output_name = make_tempdir (output_name);
2596 if (output_name == NULL)
2597 {
2598 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2599 strerror (errno));
2600 status = 1;
2601 goto cleanup_and_exit;
2602 }
2603
2604 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2605 l->name = output_name;
2606 l->next = list;
2607 l->obfd = NULL;
2608 list = l;
2609 output_name = concat (output_name, "/",
2610 bfd_get_filename (this_element), (char *) 0);
2611 }
2612
2613 if (preserve_dates)
2614 {
2615 stat_status = bfd_stat_arch_elt (this_element, &buf);
2616
2617 if (stat_status != 0)
2618 non_fatal (_("internal stat error on %s"),
2619 bfd_get_filename (this_element));
2620 }
2621
2622 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2623 l->name = output_name;
2624 l->next = list;
2625 l->obfd = NULL;
2626 list = l;
2627
2628 ok_object = bfd_check_format (this_element, bfd_object);
2629 if (!ok_object)
2630 bfd_nonfatal_message (NULL, this_element, NULL,
2631 _("Unable to recognise the format of file"));
2632
2633 /* PR binutils/3110: Cope with archives
2634 containing multiple target types. */
2635 if (force_output_target || !ok_object)
2636 output_bfd = bfd_openw (output_name, output_target);
2637 else
2638 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
2639
2640 if (output_bfd == NULL)
2641 {
2642 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2643 status = 1;
2644 goto cleanup_and_exit;
2645 }
2646
2647 if (ok_object)
2648 {
2649 del = !copy_object (this_element, output_bfd, input_arch);
2650
2651 if (del && bfd_get_arch (this_element) == bfd_arch_unknown)
2652 /* Try again as an unknown object file. */
2653 ok_object = FALSE;
2654 else if (!bfd_close (output_bfd))
2655 {
2656 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2657 /* Error in new object file. Don't change archive. */
2658 status = 1;
2659 }
2660 }
2661
2662 if (!ok_object)
2663 {
2664 del = !copy_unknown_object (this_element, output_bfd);
2665 if (!bfd_close_all_done (output_bfd))
2666 {
2667 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2668 /* Error in new object file. Don't change archive. */
2669 status = 1;
2670 }
2671 }
2672
2673 if (del)
2674 {
2675 unlink (output_name);
2676 status = 1;
2677 }
2678 else
2679 {
2680 if (preserve_dates && stat_status == 0)
2681 set_times (output_name, &buf);
2682
2683 /* Open the newly output file and attach to our list. */
2684 output_bfd = bfd_openr (output_name, output_target);
2685
2686 l->obfd = output_bfd;
2687
2688 *ptr = output_bfd;
2689 ptr = &output_bfd->archive_next;
2690
2691 last_element = this_element;
2692
2693 this_element = bfd_openr_next_archived_file (ibfd, last_element);
2694
2695 bfd_close (last_element);
2696 }
2697 }
2698 *ptr = NULL;
2699
2700 filename = bfd_get_filename (obfd);
2701 if (!bfd_close (obfd))
2702 {
2703 status = 1;
2704 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2705 }
2706
2707 filename = bfd_get_filename (ibfd);
2708 if (!bfd_close (ibfd))
2709 {
2710 status = 1;
2711 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2712 }
2713
2714 cleanup_and_exit:
2715 /* Delete all the files that we opened. */
2716 for (l = list; l != NULL; l = l->next)
2717 {
2718 if (l->obfd == NULL)
2719 rmdir (l->name);
2720 else
2721 {
2722 bfd_close (l->obfd);
2723 unlink (l->name);
2724 }
2725 }
2726
2727 rmdir (dir);
2728 }
2729
2730 static void
2731 set_long_section_mode (bfd *output_bfd, bfd *input_bfd, enum long_section_name_handling style)
2732 {
2733 /* This is only relevant to Coff targets. */
2734 if (bfd_get_flavour (output_bfd) == bfd_target_coff_flavour)
2735 {
2736 if (style == KEEP
2737 && bfd_get_flavour (input_bfd) == bfd_target_coff_flavour)
2738 style = bfd_coff_long_section_names (input_bfd) ? ENABLE : DISABLE;
2739 bfd_coff_set_long_section_names (output_bfd, style != DISABLE);
2740 }
2741 }
2742
2743 /* The top-level control. */
2744
2745 static void
2746 copy_file (const char *input_filename, const char *output_filename,
2747 const char *input_target, const char *output_target,
2748 const bfd_arch_info_type *input_arch)
2749 {
2750 bfd *ibfd;
2751 char **obj_matching;
2752 char **core_matching;
2753 off_t size = get_file_size (input_filename);
2754
2755 if (size < 1)
2756 {
2757 if (size == 0)
2758 non_fatal (_("error: the input file '%s' is empty"),
2759 input_filename);
2760 status = 1;
2761 return;
2762 }
2763
2764 /* To allow us to do "strip *" without dying on the first
2765 non-object file, failures are nonfatal. */
2766 ibfd = bfd_openr (input_filename, input_target);
2767 if (ibfd == NULL)
2768 {
2769 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2770 status = 1;
2771 return;
2772 }
2773
2774 switch (do_debug_sections)
2775 {
2776 case compress:
2777 case compress_zlib:
2778 case compress_gnu_zlib:
2779 case compress_gabi_zlib:
2780 ibfd->flags |= BFD_COMPRESS;
2781 /* Don't check if input is ELF here since this information is
2782 only available after bfd_check_format_matches is called. */
2783 if (do_debug_sections != compress_gnu_zlib)
2784 ibfd->flags |= BFD_COMPRESS_GABI;
2785 break;
2786 case decompress:
2787 ibfd->flags |= BFD_DECOMPRESS;
2788 break;
2789 default:
2790 break;
2791 }
2792
2793 switch (do_elf_stt_common)
2794 {
2795 case elf_stt_common:
2796 ibfd->flags |= BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON;
2797 break;
2798 break;
2799 case no_elf_stt_common:
2800 ibfd->flags |= BFD_CONVERT_ELF_COMMON;
2801 break;
2802 default:
2803 break;
2804 }
2805
2806 if (bfd_check_format (ibfd, bfd_archive))
2807 {
2808 bfd_boolean force_output_target;
2809 bfd *obfd;
2810
2811 /* bfd_get_target does not return the correct value until
2812 bfd_check_format succeeds. */
2813 if (output_target == NULL)
2814 {
2815 output_target = bfd_get_target (ibfd);
2816 force_output_target = FALSE;
2817 }
2818 else
2819 force_output_target = TRUE;
2820
2821 obfd = bfd_openw (output_filename, output_target);
2822 if (obfd == NULL)
2823 {
2824 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2825 status = 1;
2826 return;
2827 }
2828 /* This is a no-op on non-Coff targets. */
2829 set_long_section_mode (obfd, ibfd, long_section_names);
2830
2831 copy_archive (ibfd, obfd, output_target, force_output_target, input_arch);
2832 }
2833 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
2834 {
2835 bfd *obfd;
2836 do_copy:
2837
2838 /* bfd_get_target does not return the correct value until
2839 bfd_check_format succeeds. */
2840 if (output_target == NULL)
2841 output_target = bfd_get_target (ibfd);
2842
2843 obfd = bfd_openw (output_filename, output_target);
2844 if (obfd == NULL)
2845 {
2846 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2847 status = 1;
2848 return;
2849 }
2850 /* This is a no-op on non-Coff targets. */
2851 set_long_section_mode (obfd, ibfd, long_section_names);
2852
2853 if (! copy_object (ibfd, obfd, input_arch))
2854 status = 1;
2855
2856 /* PR 17512: file: 0f15796a.
2857 If the file could not be copied it may not be in a writeable
2858 state. So use bfd_close_all_done to avoid the possibility of
2859 writing uninitialised data into the file. */
2860 if (! (status ? bfd_close_all_done (obfd) : bfd_close (obfd)))
2861 {
2862 status = 1;
2863 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2864 return;
2865 }
2866
2867 if (!bfd_close (ibfd))
2868 {
2869 status = 1;
2870 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2871 return;
2872 }
2873 }
2874 else
2875 {
2876 bfd_error_type obj_error = bfd_get_error ();
2877 bfd_error_type core_error;
2878
2879 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2880 {
2881 /* This probably can't happen.. */
2882 if (obj_error == bfd_error_file_ambiguously_recognized)
2883 free (obj_matching);
2884 goto do_copy;
2885 }
2886
2887 core_error = bfd_get_error ();
2888 /* Report the object error in preference to the core error. */
2889 if (obj_error != core_error)
2890 bfd_set_error (obj_error);
2891
2892 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2893
2894 if (obj_error == bfd_error_file_ambiguously_recognized)
2895 {
2896 list_matching_formats (obj_matching);
2897 free (obj_matching);
2898 }
2899 if (core_error == bfd_error_file_ambiguously_recognized)
2900 {
2901 list_matching_formats (core_matching);
2902 free (core_matching);
2903 }
2904
2905 status = 1;
2906 }
2907 }
2908
2909 /* Add a name to the section renaming list. */
2910
2911 static void
2912 add_section_rename (const char * old_name, const char * new_name,
2913 flagword flags)
2914 {
2915 section_rename * srename;
2916
2917 /* Check for conflicts first. */
2918 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2919 if (strcmp (srename->old_name, old_name) == 0)
2920 {
2921 /* Silently ignore duplicate definitions. */
2922 if (strcmp (srename->new_name, new_name) == 0
2923 && srename->flags == flags)
2924 return;
2925
2926 fatal (_("Multiple renames of section %s"), old_name);
2927 }
2928
2929 srename = (section_rename *) xmalloc (sizeof (* srename));
2930
2931 srename->old_name = old_name;
2932 srename->new_name = new_name;
2933 srename->flags = flags;
2934 srename->next = section_rename_list;
2935
2936 section_rename_list = srename;
2937 }
2938
2939 /* Check the section rename list for a new name of the input section
2940 ISECTION. Return the new name if one is found.
2941 Also set RETURNED_FLAGS to the flags to be used for this section. */
2942
2943 static const char *
2944 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2945 flagword * returned_flags)
2946 {
2947 const char * old_name = bfd_section_name (ibfd, isection);
2948 section_rename * srename;
2949
2950 /* Default to using the flags of the input section. */
2951 * returned_flags = bfd_get_section_flags (ibfd, isection);
2952
2953 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2954 if (strcmp (srename->old_name, old_name) == 0)
2955 {
2956 if (srename->flags != (flagword) -1)
2957 * returned_flags = srename->flags;
2958
2959 return srename->new_name;
2960 }
2961
2962 return old_name;
2963 }
2964
2965 /* Once each of the sections is copied, we may still need to do some
2966 finalization work for private section headers. Do that here. */
2967
2968 static void
2969 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2970 {
2971 /* Allow the BFD backend to copy any private data it understands
2972 from the input section to the output section. */
2973 if (! bfd_copy_private_header_data (ibfd, obfd))
2974 {
2975 status = 1;
2976 bfd_nonfatal_message (NULL, ibfd, NULL,
2977 _("error in private header data"));
2978 return;
2979 }
2980
2981 /* All went well. */
2982 return;
2983 }
2984
2985 /* Create a section in OBFD with the same
2986 name and attributes as ISECTION in IBFD. */
2987
2988 static void
2989 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2990 {
2991 bfd *obfd = (bfd *) obfdarg;
2992 struct section_list *p;
2993 sec_ptr osection;
2994 bfd_size_type size;
2995 bfd_vma vma;
2996 bfd_vma lma;
2997 flagword flags;
2998 const char *err;
2999 const char * name;
3000 char *prefix = NULL;
3001 bfd_boolean make_nobits;
3002
3003 if (is_strip_section (ibfd, isection))
3004 return;
3005
3006 /* Get the, possibly new, name of the output section. */
3007 name = find_section_rename (ibfd, isection, & flags);
3008
3009 /* Prefix sections. */
3010 if ((prefix_alloc_sections_string)
3011 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
3012 prefix = prefix_alloc_sections_string;
3013 else if (prefix_sections_string)
3014 prefix = prefix_sections_string;
3015
3016 if (prefix)
3017 {
3018 char *n;
3019
3020 n = (char *) xmalloc (strlen (prefix) + strlen (name) + 1);
3021 strcpy (n, prefix);
3022 strcat (n, name);
3023 name = n;
3024 }
3025
3026 make_nobits = FALSE;
3027
3028 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
3029 SECTION_CONTEXT_SET_FLAGS);
3030 if (p != NULL)
3031 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
3032 else if (strip_symbols == STRIP_NONDEBUG
3033 && (flags & (SEC_ALLOC | SEC_GROUP)) != 0
3034 && !is_nondebug_keep_contents_section (ibfd, isection))
3035 {
3036 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
3037 if (obfd->xvec->flavour == bfd_target_elf_flavour)
3038 {
3039 make_nobits = TRUE;
3040
3041 /* Twiddle the input section flags so that it seems to
3042 elf.c:copy_private_bfd_data that section flags have not
3043 changed between input and output sections. This hack
3044 prevents wholesale rewriting of the program headers. */
3045 isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
3046 }
3047 }
3048
3049 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
3050
3051 if (osection == NULL)
3052 {
3053 err = _("failed to create output section");
3054 goto loser;
3055 }
3056
3057 if (make_nobits)
3058 elf_section_type (osection) = SHT_NOBITS;
3059
3060 size = bfd_section_size (ibfd, isection);
3061 size = bfd_convert_section_size (ibfd, isection, obfd, size);
3062 if (copy_byte >= 0)
3063 size = (size + interleave - 1) / interleave * copy_width;
3064 else if (extract_symbol)
3065 size = 0;
3066 if (! bfd_set_section_size (obfd, osection, size))
3067 {
3068 err = _("failed to set size");
3069 goto loser;
3070 }
3071
3072 vma = bfd_section_vma (ibfd, isection);
3073 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
3074 SECTION_CONTEXT_ALTER_VMA | SECTION_CONTEXT_SET_VMA);
3075 if (p != NULL)
3076 {
3077 if (p->context & SECTION_CONTEXT_SET_VMA)
3078 vma = p->vma_val;
3079 else
3080 vma += p->vma_val;
3081 }
3082 else
3083 vma += change_section_address;
3084
3085 if (! bfd_set_section_vma (obfd, osection, vma))
3086 {
3087 err = _("failed to set vma");
3088 goto loser;
3089 }
3090
3091 lma = isection->lma;
3092 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
3093 SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_SET_LMA);
3094 if (p != NULL)
3095 {
3096 if (p->context & SECTION_CONTEXT_ALTER_LMA)
3097 lma += p->lma_val;
3098 else
3099 lma = p->lma_val;
3100 }
3101 else
3102 lma += change_section_address;
3103
3104 osection->lma = lma;
3105
3106 /* FIXME: This is probably not enough. If we change the LMA we
3107 may have to recompute the header for the file as well. */
3108 if (!bfd_set_section_alignment (obfd,
3109 osection,
3110 bfd_section_alignment (ibfd, isection)))
3111 {
3112 err = _("failed to set alignment");
3113 goto loser;
3114 }
3115
3116 /* Copy merge entity size. */
3117 osection->entsize = isection->entsize;
3118
3119 /* Copy compress status. */
3120 osection->compress_status = isection->compress_status;
3121
3122 /* This used to be mangle_section; we do here to avoid using
3123 bfd_get_section_by_name since some formats allow multiple
3124 sections with the same name. */
3125 isection->output_section = osection;
3126 isection->output_offset = 0;
3127
3128 if ((isection->flags & SEC_GROUP) != 0)
3129 {
3130 asymbol *gsym = group_signature (isection);
3131
3132 if (gsym != NULL)
3133 {
3134 gsym->flags |= BSF_KEEP;
3135 if (ibfd->xvec->flavour == bfd_target_elf_flavour)
3136 elf_group_id (isection) = gsym;
3137 }
3138 }
3139
3140 /* Allow the BFD backend to copy any private data it understands
3141 from the input section to the output section. */
3142 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
3143 {
3144 err = _("failed to copy private data");
3145 goto loser;
3146 }
3147
3148 /* All went well. */
3149 return;
3150
3151 loser:
3152 status = 1;
3153 bfd_nonfatal_message (NULL, obfd, osection, err);
3154 }
3155
3156 /* Return TRUE if input section ISECTION should be skipped. */
3157
3158 static bfd_boolean
3159 skip_section (bfd *ibfd, sec_ptr isection)
3160 {
3161 sec_ptr osection;
3162 bfd_size_type size;
3163 flagword flags;
3164
3165 /* If we have already failed earlier on,
3166 do not keep on generating complaints now. */
3167 if (status != 0)
3168 return TRUE;
3169
3170 if (extract_symbol)
3171 return TRUE;
3172
3173 if (is_strip_section (ibfd, isection))
3174 return TRUE;
3175
3176 if (is_update_section (ibfd, isection))
3177 return TRUE;
3178
3179 flags = bfd_get_section_flags (ibfd, isection);
3180 if ((flags & SEC_GROUP) != 0)
3181 return TRUE;
3182
3183 osection = isection->output_section;
3184 size = bfd_get_section_size (isection);
3185
3186 if (size == 0 || osection == 0)
3187 return TRUE;
3188
3189 return FALSE;
3190 }
3191
3192 /* Copy relocations in input section ISECTION of IBFD to an output
3193 section with the same name in OBFDARG. If stripping then don't
3194 copy any relocation info. */
3195
3196 static void
3197 copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
3198 {
3199 bfd *obfd = (bfd *) obfdarg;
3200 long relsize;
3201 arelent **relpp;
3202 long relcount;
3203 sec_ptr osection;
3204
3205 if (skip_section (ibfd, isection))
3206 return;
3207
3208 osection = isection->output_section;
3209
3210 /* Core files and DWO files do not need to be relocated. */
3211 if (bfd_get_format (obfd) == bfd_core || strip_symbols == STRIP_NONDWO)
3212 relsize = 0;
3213 else
3214 {
3215 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
3216
3217 if (relsize < 0)
3218 {
3219 /* Do not complain if the target does not support relocations. */
3220 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
3221 relsize = 0;
3222 else
3223 {
3224 status = 1;
3225 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
3226 return;
3227 }
3228 }
3229 }
3230
3231 if (relsize == 0)
3232 {
3233 bfd_set_reloc (obfd, osection, NULL, 0);
3234 osection->flags &= ~SEC_RELOC;
3235 }
3236 else
3237 {
3238 relpp = (arelent **) xmalloc (relsize);
3239 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
3240 if (relcount < 0)
3241 {
3242 status = 1;
3243 bfd_nonfatal_message (NULL, ibfd, isection,
3244 _("relocation count is negative"));
3245 return;
3246 }
3247
3248 if (strip_symbols == STRIP_ALL)
3249 {
3250 /* Remove relocations which are not in
3251 keep_strip_specific_list. */
3252 arelent **temp_relpp;
3253 long temp_relcount = 0;
3254 long i;
3255
3256 temp_relpp = (arelent **) xmalloc (relsize);
3257 for (i = 0; i < relcount; i++)
3258 {
3259 /* PR 17512: file: 9e907e0c. */
3260 if (relpp[i]->sym_ptr_ptr
3261 /* PR 20096 */
3262 && * relpp[i]->sym_ptr_ptr)
3263 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
3264 keep_specific_htab))
3265 temp_relpp [temp_relcount++] = relpp [i];
3266 }
3267 relcount = temp_relcount;
3268 free (relpp);
3269 relpp = temp_relpp;
3270 }
3271
3272 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
3273 if (relcount == 0)
3274 {
3275 osection->flags &= ~SEC_RELOC;
3276 free (relpp);
3277 }
3278 }
3279 }
3280
3281 /* Copy the data of input section ISECTION of IBFD
3282 to an output section with the same name in OBFD. */
3283
3284 static void
3285 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
3286 {
3287 bfd *obfd = (bfd *) obfdarg;
3288 struct section_list *p;
3289 sec_ptr osection;
3290 bfd_size_type size;
3291
3292 if (skip_section (ibfd, isection))
3293 return;
3294
3295 osection = isection->output_section;
3296 /* The output SHF_COMPRESSED section size is different from input if
3297 ELF classes of input and output aren't the same. We can't use
3298 the output section size since --interleave will shrink the output
3299 section. Size will be updated if the section is converted. */
3300 size = bfd_get_section_size (isection);
3301
3302 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
3303 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
3304 {
3305 bfd_byte *memhunk = NULL;
3306
3307 if (!bfd_get_full_section_contents (ibfd, isection, &memhunk)
3308 || !bfd_convert_section_contents (ibfd, isection, obfd,
3309 &memhunk, &size))
3310 {
3311 status = 1;
3312 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
3313 return;
3314 }
3315
3316 if (reverse_bytes)
3317 {
3318 /* We don't handle leftover bytes (too many possible behaviors,
3319 and we don't know what the user wants). The section length
3320 must be a multiple of the number of bytes to swap. */
3321 if ((size % reverse_bytes) == 0)
3322 {
3323 unsigned long i, j;
3324 bfd_byte b;
3325
3326 for (i = 0; i < size; i += reverse_bytes)
3327 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
3328 {
3329 bfd_byte *m = (bfd_byte *) memhunk;
3330
3331 b = m[i + j];
3332 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
3333 m[(i + reverse_bytes) - (j + 1)] = b;
3334 }
3335 }
3336 else
3337 /* User must pad the section up in order to do this. */
3338 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3339 bfd_section_name (ibfd, isection), reverse_bytes);
3340 }
3341
3342 if (copy_byte >= 0)
3343 {
3344 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3345 char *from = (char *) memhunk + copy_byte;
3346 char *to = (char *) memhunk;
3347 char *end = (char *) memhunk + size;
3348 int i;
3349
3350 for (; from < end; from += interleave)
3351 for (i = 0; i < copy_width; i++)
3352 {
3353 if (&from[i] >= end)
3354 break;
3355 *to++ = from[i];
3356 }
3357
3358 size = (size + interleave - 1 - copy_byte) / interleave * copy_width;
3359 osection->lma /= interleave;
3360 }
3361
3362 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
3363 {
3364 status = 1;
3365 bfd_nonfatal_message (NULL, obfd, osection, NULL);
3366 return;
3367 }
3368 free (memhunk);
3369 }
3370 else if ((p = find_section_list (bfd_get_section_name (ibfd, isection),
3371 FALSE, SECTION_CONTEXT_SET_FLAGS)) != NULL
3372 && (p->flags & SEC_HAS_CONTENTS) != 0)
3373 {
3374 void *memhunk = xmalloc (size);
3375
3376 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3377 flag--they can just remove the section entirely and add it
3378 back again. However, we do permit them to turn on the
3379 SEC_HAS_CONTENTS flag, and take it to mean that the section
3380 contents should be zeroed out. */
3381
3382 memset (memhunk, 0, size);
3383 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
3384 {
3385 status = 1;
3386 bfd_nonfatal_message (NULL, obfd, osection, NULL);
3387 return;
3388 }
3389 free (memhunk);
3390 }
3391 }
3392
3393 /* Get all the sections. This is used when --gap-fill or --pad-to is
3394 used. */
3395
3396 static void
3397 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
3398 {
3399 asection ***secppp = (asection ***) secppparg;
3400
3401 **secppp = osection;
3402 ++(*secppp);
3403 }
3404
3405 /* Sort sections by VMA. This is called via qsort, and is used when
3406 --gap-fill or --pad-to is used. We force non loadable or empty
3407 sections to the front, where they are easier to ignore. */
3408
3409 static int
3410 compare_section_lma (const void *arg1, const void *arg2)
3411 {
3412 const asection *const *sec1 = (const asection * const *) arg1;
3413 const asection *const *sec2 = (const asection * const *) arg2;
3414 flagword flags1, flags2;
3415
3416 /* Sort non loadable sections to the front. */
3417 flags1 = (*sec1)->flags;
3418 flags2 = (*sec2)->flags;
3419 if ((flags1 & SEC_HAS_CONTENTS) == 0
3420 || (flags1 & SEC_LOAD) == 0)
3421 {
3422 if ((flags2 & SEC_HAS_CONTENTS) != 0
3423 && (flags2 & SEC_LOAD) != 0)
3424 return -1;
3425 }
3426 else
3427 {
3428 if ((flags2 & SEC_HAS_CONTENTS) == 0
3429 || (flags2 & SEC_LOAD) == 0)
3430 return 1;
3431 }
3432
3433 /* Sort sections by LMA. */
3434 if ((*sec1)->lma > (*sec2)->lma)
3435 return 1;
3436 else if ((*sec1)->lma < (*sec2)->lma)
3437 return -1;
3438
3439 /* Sort sections with the same LMA by size. */
3440 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
3441 return 1;
3442 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
3443 return -1;
3444
3445 return 0;
3446 }
3447
3448 /* Mark all the symbols which will be used in output relocations with
3449 the BSF_KEEP flag so that those symbols will not be stripped.
3450
3451 Ignore relocations which will not appear in the output file. */
3452
3453 static void
3454 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
3455 {
3456 asymbol **symbols = (asymbol **) symbolsarg;
3457 long relsize;
3458 arelent **relpp;
3459 long relcount, i;
3460
3461 /* Ignore an input section with no corresponding output section. */
3462 if (isection->output_section == NULL)
3463 return;
3464
3465 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
3466 if (relsize < 0)
3467 {
3468 /* Do not complain if the target does not support relocations. */
3469 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
3470 return;
3471 bfd_fatal (bfd_get_filename (ibfd));
3472 }
3473
3474 if (relsize == 0)
3475 return;
3476
3477 relpp = (arelent **) xmalloc (relsize);
3478 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
3479 if (relcount < 0)
3480 bfd_fatal (bfd_get_filename (ibfd));
3481
3482 /* Examine each symbol used in a relocation. If it's not one of the
3483 special bfd section symbols, then mark it with BSF_KEEP. */
3484 for (i = 0; i < relcount; i++)
3485 {
3486 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
3487 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
3488 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
3489 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
3490 }
3491
3492 if (relpp != NULL)
3493 free (relpp);
3494 }
3495
3496 /* Write out debugging information. */
3497
3498 static bfd_boolean
3499 write_debugging_info (bfd *obfd, void *dhandle,
3500 long *symcountp ATTRIBUTE_UNUSED,
3501 asymbol ***symppp ATTRIBUTE_UNUSED)
3502 {
3503 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
3504 return write_ieee_debugging_info (obfd, dhandle);
3505
3506 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
3507 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
3508 {
3509 bfd_byte *syms, *strings;
3510 bfd_size_type symsize, stringsize;
3511 asection *stabsec, *stabstrsec;
3512 flagword flags;
3513
3514 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
3515 &symsize, &strings,
3516 &stringsize))
3517 return FALSE;
3518
3519 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
3520 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
3521 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
3522 if (stabsec == NULL
3523 || stabstrsec == NULL
3524 || ! bfd_set_section_size (obfd, stabsec, symsize)
3525 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
3526 || ! bfd_set_section_alignment (obfd, stabsec, 2)
3527 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
3528 {
3529 bfd_nonfatal_message (NULL, obfd, NULL,
3530 _("can't create debugging section"));
3531 return FALSE;
3532 }
3533
3534 /* We can get away with setting the section contents now because
3535 the next thing the caller is going to do is copy over the
3536 real sections. We may someday have to split the contents
3537 setting out of this function. */
3538 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
3539 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
3540 stringsize))
3541 {
3542 bfd_nonfatal_message (NULL, obfd, NULL,
3543 _("can't set debugging section contents"));
3544 return FALSE;
3545 }
3546
3547 return TRUE;
3548 }
3549
3550 bfd_nonfatal_message (NULL, obfd, NULL,
3551 _("don't know how to write debugging information for %s"),
3552 bfd_get_target (obfd));
3553 return FALSE;
3554 }
3555
3556 /* If neither -D nor -U was specified explicitly,
3557 then use the configured default. */
3558 static void
3559 default_deterministic (void)
3560 {
3561 if (deterministic < 0)
3562 deterministic = DEFAULT_AR_DETERMINISTIC;
3563 }
3564
3565 static int
3566 strip_main (int argc, char *argv[])
3567 {
3568 char *input_target = NULL;
3569 char *output_target = NULL;
3570 bfd_boolean show_version = FALSE;
3571 bfd_boolean formats_info = FALSE;
3572 int c;
3573 int i;
3574 char *output_file = NULL;
3575
3576 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3577 strip_options, (int *) 0)) != EOF)
3578 {
3579 switch (c)
3580 {
3581 case 'I':
3582 input_target = optarg;
3583 break;
3584 case 'O':
3585 output_target = optarg;
3586 break;
3587 case 'F':
3588 input_target = output_target = optarg;
3589 break;
3590 case 'R':
3591 find_section_list (optarg, TRUE, SECTION_CONTEXT_REMOVE);
3592 sections_removed = TRUE;
3593 break;
3594 case 's':
3595 strip_symbols = STRIP_ALL;
3596 break;
3597 case 'S':
3598 case 'g':
3599 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3600 strip_symbols = STRIP_DEBUG;
3601 break;
3602 case OPTION_STRIP_DWO:
3603 strip_symbols = STRIP_DWO;
3604 break;
3605 case OPTION_STRIP_UNNEEDED:
3606 strip_symbols = STRIP_UNNEEDED;
3607 break;
3608 case 'K':
3609 add_specific_symbol (optarg, keep_specific_htab);
3610 break;
3611 case 'N':
3612 add_specific_symbol (optarg, strip_specific_htab);
3613 break;
3614 case 'o':
3615 output_file = optarg;
3616 break;
3617 case 'p':
3618 preserve_dates = TRUE;
3619 break;
3620 case 'D':
3621 deterministic = TRUE;
3622 break;
3623 case 'U':
3624 deterministic = FALSE;
3625 break;
3626 case 'x':
3627 discard_locals = LOCALS_ALL;
3628 break;
3629 case 'X':
3630 discard_locals = LOCALS_START_L;
3631 break;
3632 case 'v':
3633 verbose = TRUE;
3634 break;
3635 case 'V':
3636 show_version = TRUE;
3637 break;
3638 case OPTION_FORMATS_INFO:
3639 formats_info = TRUE;
3640 break;
3641 case OPTION_ONLY_KEEP_DEBUG:
3642 strip_symbols = STRIP_NONDEBUG;
3643 break;
3644 case OPTION_KEEP_FILE_SYMBOLS:
3645 keep_file_symbols = 1;
3646 break;
3647 case 0:
3648 /* We've been given a long option. */
3649 break;
3650 case 'w':
3651 wildcard = TRUE;
3652 break;
3653 case 'H':
3654 case 'h':
3655 strip_usage (stdout, 0);
3656 default:
3657 strip_usage (stderr, 1);
3658 }
3659 }
3660
3661 if (formats_info)
3662 {
3663 display_info ();
3664 return 0;
3665 }
3666
3667 if (show_version)
3668 print_version ("strip");
3669
3670 default_deterministic ();
3671
3672 /* Default is to strip all symbols. */
3673 if (strip_symbols == STRIP_UNDEF
3674 && discard_locals == LOCALS_UNDEF
3675 && htab_elements (strip_specific_htab) == 0)
3676 strip_symbols = STRIP_ALL;
3677
3678 if (output_target == NULL)
3679 output_target = input_target;
3680
3681 i = optind;
3682 if (i == argc
3683 || (output_file != NULL && (i + 1) < argc))
3684 strip_usage (stderr, 1);
3685
3686 for (; i < argc; i++)
3687 {
3688 int hold_status = status;
3689 struct stat statbuf;
3690 char *tmpname;
3691
3692 if (get_file_size (argv[i]) < 1)
3693 {
3694 status = 1;
3695 continue;
3696 }
3697
3698 if (preserve_dates)
3699 /* No need to check the return value of stat().
3700 It has already been checked in get_file_size(). */
3701 stat (argv[i], &statbuf);
3702
3703 if (output_file == NULL
3704 || filename_cmp (argv[i], output_file) == 0)
3705 tmpname = make_tempname (argv[i]);
3706 else
3707 tmpname = output_file;
3708
3709 if (tmpname == NULL)
3710 {
3711 bfd_nonfatal_message (argv[i], NULL, NULL,
3712 _("could not create temporary file to hold stripped copy"));
3713 status = 1;
3714 continue;
3715 }
3716
3717 status = 0;
3718 copy_file (argv[i], tmpname, input_target, output_target, NULL);
3719 if (status == 0)
3720 {
3721 if (preserve_dates)
3722 set_times (tmpname, &statbuf);
3723 if (output_file != tmpname)
3724 status = (smart_rename (tmpname,
3725 output_file ? output_file : argv[i],
3726 preserve_dates) != 0);
3727 if (status == 0)
3728 status = hold_status;
3729 }
3730 else
3731 unlink_if_ordinary (tmpname);
3732 if (output_file != tmpname)
3733 free (tmpname);
3734 }
3735
3736 return status;
3737 }
3738
3739 /* Set up PE subsystem. */
3740
3741 static void
3742 set_pe_subsystem (const char *s)
3743 {
3744 const char *version, *subsystem;
3745 size_t i;
3746 static const struct
3747 {
3748 const char *name;
3749 const char set_def;
3750 const short value;
3751 }
3752 v[] =
3753 {
3754 { "native", 0, IMAGE_SUBSYSTEM_NATIVE },
3755 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI },
3756 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI },
3757 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI },
3758 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI },
3759 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION },
3760 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER },
3761 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER },
3762 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER },
3763 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX }
3764 };
3765 short value;
3766 char *copy;
3767 int set_def = -1;
3768
3769 /* Check for the presence of a version number. */
3770 version = strchr (s, ':');
3771 if (version == NULL)
3772 subsystem = s;
3773 else
3774 {
3775 int len = version - s;
3776 copy = xstrdup (s);
3777 subsystem = copy;
3778 copy[len] = '\0';
3779 version = copy + 1 + len;
3780 pe_major_subsystem_version = strtoul (version, &copy, 0);
3781 if (*copy == '.')
3782 pe_minor_subsystem_version = strtoul (copy + 1, &copy, 0);
3783 if (*copy != '\0')
3784 non_fatal (_("%s: bad version in PE subsystem"), s);
3785 }
3786
3787 /* Check for numeric subsystem. */
3788 value = (short) strtol (subsystem, &copy, 0);
3789 if (*copy == '\0')
3790 {
3791 for (i = 0; i < ARRAY_SIZE (v); i++)
3792 if (v[i].value == value)
3793 {
3794 pe_subsystem = value;
3795 set_def = v[i].set_def;
3796 break;
3797 }
3798 }
3799 else
3800 {
3801 /* Search for subsystem by name. */
3802 for (i = 0; i < ARRAY_SIZE (v); i++)
3803 if (strcmp (subsystem, v[i].name) == 0)
3804 {
3805 pe_subsystem = v[i].value;
3806 set_def = v[i].set_def;
3807 break;
3808 }
3809 }
3810
3811 switch (set_def)
3812 {
3813 case -1:
3814 fatal (_("unknown PE subsystem: %s"), s);
3815 break;
3816 case 0:
3817 break;
3818 default:
3819 if (pe_file_alignment == (bfd_vma) -1)
3820 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
3821 if (pe_section_alignment == (bfd_vma) -1)
3822 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
3823 break;
3824 }
3825 if (s != subsystem)
3826 free ((char *) subsystem);
3827 }
3828
3829 /* Convert EFI target to PEI target. */
3830
3831 static void
3832 convert_efi_target (char *efi)
3833 {
3834 efi[0] = 'p';
3835 efi[1] = 'e';
3836 efi[2] = 'i';
3837
3838 if (strcmp (efi + 4, "ia32") == 0)
3839 {
3840 /* Change ia32 to i386. */
3841 efi[5]= '3';
3842 efi[6]= '8';
3843 efi[7]= '6';
3844 }
3845 else if (strcmp (efi + 4, "x86_64") == 0)
3846 {
3847 /* Change x86_64 to x86-64. */
3848 efi[7] = '-';
3849 }
3850 }
3851
3852 /* Allocate and return a pointer to a struct section_add, initializing the
3853 structure using ARG, a string in the format "sectionname=filename".
3854 The returned structure will have its next pointer set to NEXT. The
3855 OPTION field is the name of the command line option currently being
3856 parsed, and is only used if an error needs to be reported. */
3857
3858 static struct section_add *
3859 init_section_add (const char *arg,
3860 struct section_add *next,
3861 const char *option)
3862 {
3863 struct section_add *pa;
3864 const char *s;
3865
3866 s = strchr (arg, '=');
3867 if (s == NULL)
3868 fatal (_("bad format for %s"), option);
3869
3870 pa = (struct section_add *) xmalloc (sizeof (struct section_add));
3871 pa->name = xstrndup (arg, s - arg);
3872 pa->filename = s + 1;
3873 pa->next = next;
3874 pa->contents = NULL;
3875 pa->size = 0;
3876
3877 return pa;
3878 }
3879
3880 /* Load the file specified in PA, allocating memory to hold the file
3881 contents, and store a pointer to the allocated memory in the contents
3882 field of PA. The size field of PA is also updated. All errors call
3883 FATAL. */
3884
3885 static void
3886 section_add_load_file (struct section_add *pa)
3887 {
3888 size_t off, alloc;
3889 FILE *f;
3890
3891 /* We don't use get_file_size so that we can do
3892 --add-section .note.GNU_stack=/dev/null
3893 get_file_size doesn't work on /dev/null. */
3894
3895 f = fopen (pa->filename, FOPEN_RB);
3896 if (f == NULL)
3897 fatal (_("cannot open: %s: %s"),
3898 pa->filename, strerror (errno));
3899
3900 off = 0;
3901 alloc = 4096;
3902 pa->contents = (bfd_byte *) xmalloc (alloc);
3903 while (!feof (f))
3904 {
3905 off_t got;
3906
3907 if (off == alloc)
3908 {
3909 alloc <<= 1;
3910 pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc);
3911 }
3912
3913 got = fread (pa->contents + off, 1, alloc - off, f);
3914 if (ferror (f))
3915 fatal (_("%s: fread failed"), pa->filename);
3916
3917 off += got;
3918 }
3919
3920 pa->size = off;
3921
3922 fclose (f);
3923 }
3924
3925 static int
3926 copy_main (int argc, char *argv[])
3927 {
3928 char *input_filename = NULL;
3929 char *output_filename = NULL;
3930 char *tmpname;
3931 char *input_target = NULL;
3932 char *output_target = NULL;
3933 bfd_boolean show_version = FALSE;
3934 bfd_boolean change_warn = TRUE;
3935 bfd_boolean formats_info = FALSE;
3936 int c;
3937 struct stat statbuf;
3938 const bfd_arch_info_type *input_arch = NULL;
3939
3940 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3941 copy_options, (int *) 0)) != EOF)
3942 {
3943 switch (c)
3944 {
3945 case 'b':
3946 copy_byte = atoi (optarg);
3947 if (copy_byte < 0)
3948 fatal (_("byte number must be non-negative"));
3949 break;
3950
3951 case 'B':
3952 input_arch = bfd_scan_arch (optarg);
3953 if (input_arch == NULL)
3954 fatal (_("architecture %s unknown"), optarg);
3955 break;
3956
3957 case 'i':
3958 if (optarg)
3959 {
3960 interleave = atoi (optarg);
3961 if (interleave < 1)
3962 fatal (_("interleave must be positive"));
3963 }
3964 else
3965 interleave = 4;
3966 break;
3967
3968 case OPTION_INTERLEAVE_WIDTH:
3969 copy_width = atoi (optarg);
3970 if (copy_width < 1)
3971 fatal(_("interleave width must be positive"));
3972 break;
3973
3974 case 'I':
3975 case 's': /* "source" - 'I' is preferred */
3976 input_target = optarg;
3977 break;
3978
3979 case 'O':
3980 case 'd': /* "destination" - 'O' is preferred */
3981 output_target = optarg;
3982 break;
3983
3984 case 'F':
3985 input_target = output_target = optarg;
3986 break;
3987
3988 case 'j':
3989 find_section_list (optarg, TRUE, SECTION_CONTEXT_COPY);
3990 sections_copied = TRUE;
3991 break;
3992
3993 case 'R':
3994 find_section_list (optarg, TRUE, SECTION_CONTEXT_REMOVE);
3995 sections_removed = TRUE;
3996 break;
3997
3998 case 'S':
3999 strip_symbols = STRIP_ALL;
4000 break;
4001
4002 case 'g':
4003 strip_symbols = STRIP_DEBUG;
4004 break;
4005
4006 case OPTION_STRIP_DWO:
4007 strip_symbols = STRIP_DWO;
4008 break;
4009
4010 case OPTION_STRIP_UNNEEDED:
4011 strip_symbols = STRIP_UNNEEDED;
4012 break;
4013
4014 case OPTION_ONLY_KEEP_DEBUG:
4015 strip_symbols = STRIP_NONDEBUG;
4016 break;
4017
4018 case OPTION_KEEP_FILE_SYMBOLS:
4019 keep_file_symbols = 1;
4020 break;
4021
4022 case OPTION_ADD_GNU_DEBUGLINK:
4023 long_section_names = ENABLE ;
4024 gnu_debuglink_filename = optarg;
4025 break;
4026
4027 case 'K':
4028 add_specific_symbol (optarg, keep_specific_htab);
4029 break;
4030
4031 case 'N':
4032 add_specific_symbol (optarg, strip_specific_htab);
4033 break;
4034
4035 case OPTION_STRIP_UNNEEDED_SYMBOL:
4036 add_specific_symbol (optarg, strip_unneeded_htab);
4037 break;
4038
4039 case 'L':
4040 add_specific_symbol (optarg, localize_specific_htab);
4041 break;
4042
4043 case OPTION_GLOBALIZE_SYMBOL:
4044 add_specific_symbol (optarg, globalize_specific_htab);
4045 break;
4046
4047 case 'G':
4048 add_specific_symbol (optarg, keepglobal_specific_htab);
4049 break;
4050
4051 case 'W':
4052 add_specific_symbol (optarg, weaken_specific_htab);
4053 break;
4054
4055 case 'p':
4056 preserve_dates = TRUE;
4057 break;
4058
4059 case 'D':
4060 deterministic = TRUE;
4061 break;
4062
4063 case 'U':
4064 deterministic = FALSE;
4065 break;
4066
4067 case 'w':
4068 wildcard = TRUE;
4069 break;
4070
4071 case 'x':
4072 discard_locals = LOCALS_ALL;
4073 break;
4074
4075 case 'X':
4076 discard_locals = LOCALS_START_L;
4077 break;
4078
4079 case 'v':
4080 verbose = TRUE;
4081 break;
4082
4083 case 'V':
4084 show_version = TRUE;
4085 break;
4086
4087 case OPTION_FORMATS_INFO:
4088 formats_info = TRUE;
4089 break;
4090
4091 case OPTION_WEAKEN:
4092 weaken = TRUE;
4093 break;
4094
4095 case OPTION_ADD_SECTION:
4096 add_sections = init_section_add (optarg, add_sections,
4097 "--add-section");
4098 section_add_load_file (add_sections);
4099 break;
4100
4101 case OPTION_UPDATE_SECTION:
4102 update_sections = init_section_add (optarg, update_sections,
4103 "--update-section");
4104 section_add_load_file (update_sections);
4105 break;
4106
4107 case OPTION_DUMP_SECTION:
4108 dump_sections = init_section_add (optarg, dump_sections,
4109 "--dump-section");
4110 break;
4111
4112 case OPTION_ADD_SYMBOL:
4113 {
4114 char *s, *t;
4115 struct addsym_node *newsym = xmalloc (sizeof *newsym);
4116
4117 newsym->next = NULL;
4118 s = strchr (optarg, '=');
4119 if (s == NULL)
4120 fatal (_("bad format for %s"), "--add-symbol");
4121 t = strchr (s + 1, ':');
4122
4123 newsym->symdef = xstrndup (optarg, s - optarg);
4124 if (t)
4125 {
4126 newsym->section = xstrndup (s + 1, t - (s + 1));
4127 newsym->symval = strtol (t + 1, NULL, 0);
4128 }
4129 else
4130 {
4131 newsym->section = NULL;
4132 newsym->symval = strtol (s + 1, NULL, 0);
4133 t = s;
4134 }
4135
4136 t = strchr (t + 1, ',');
4137 newsym->othersym = NULL;
4138 if (t)
4139 newsym->flags = parse_symflags (t+1, &newsym->othersym);
4140 else
4141 newsym->flags = BSF_GLOBAL;
4142
4143 /* Keep 'othersym' symbols at the front of the list. */
4144 if (newsym->othersym)
4145 {
4146 newsym->next = add_sym_list;
4147 if (!add_sym_list)
4148 add_sym_tail = &newsym->next;
4149 add_sym_list = newsym;
4150 }
4151 else
4152 {
4153 *add_sym_tail = newsym;
4154 add_sym_tail = &newsym->next;
4155 }
4156 add_symbols++;
4157 }
4158 break;
4159
4160 case OPTION_CHANGE_START:
4161 change_start = parse_vma (optarg, "--change-start");
4162 break;
4163
4164 case OPTION_CHANGE_SECTION_ADDRESS:
4165 case OPTION_CHANGE_SECTION_LMA:
4166 case OPTION_CHANGE_SECTION_VMA:
4167 {
4168 struct section_list * p;
4169 unsigned int context = 0;
4170 const char *s;
4171 int len;
4172 char *name;
4173 char *option = NULL;
4174 bfd_vma val;
4175
4176 switch (c)
4177 {
4178 case OPTION_CHANGE_SECTION_ADDRESS:
4179 option = "--change-section-address";
4180 context = SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_ALTER_VMA;
4181 break;
4182 case OPTION_CHANGE_SECTION_LMA:
4183 option = "--change-section-lma";
4184 context = SECTION_CONTEXT_ALTER_LMA;
4185 break;
4186 case OPTION_CHANGE_SECTION_VMA:
4187 option = "--change-section-vma";
4188 context = SECTION_CONTEXT_ALTER_VMA;
4189 break;
4190 }
4191
4192 s = strchr (optarg, '=');
4193 if (s == NULL)
4194 {
4195 s = strchr (optarg, '+');
4196 if (s == NULL)
4197 {
4198 s = strchr (optarg, '-');
4199 if (s == NULL)
4200 fatal (_("bad format for %s"), option);
4201 }
4202 }
4203 else
4204 {
4205 /* Correct the context. */
4206 switch (c)
4207 {
4208 case OPTION_CHANGE_SECTION_ADDRESS:
4209 context = SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_SET_VMA;
4210 break;
4211 case OPTION_CHANGE_SECTION_LMA:
4212 context = SECTION_CONTEXT_SET_LMA;
4213 break;
4214 case OPTION_CHANGE_SECTION_VMA:
4215 context = SECTION_CONTEXT_SET_VMA;
4216 break;
4217 }
4218 }
4219
4220 len = s - optarg;
4221 name = (char *) xmalloc (len + 1);
4222 strncpy (name, optarg, len);
4223 name[len] = '\0';
4224
4225 p = find_section_list (name, TRUE, context);
4226
4227 val = parse_vma (s + 1, option);
4228 if (*s == '-')
4229 val = - val;
4230
4231 switch (c)
4232 {
4233 case OPTION_CHANGE_SECTION_ADDRESS:
4234 p->vma_val = val;
4235 /* Drop through. */
4236
4237 case OPTION_CHANGE_SECTION_LMA:
4238 p->lma_val = val;
4239 break;
4240
4241 case OPTION_CHANGE_SECTION_VMA:
4242 p->vma_val = val;
4243 break;
4244 }
4245 }
4246 break;
4247
4248 case OPTION_CHANGE_ADDRESSES:
4249 change_section_address = parse_vma (optarg, "--change-addresses");
4250 change_start = change_section_address;
4251 break;
4252
4253 case OPTION_CHANGE_WARNINGS:
4254 change_warn = TRUE;
4255 break;
4256
4257 case OPTION_CHANGE_LEADING_CHAR:
4258 change_leading_char = TRUE;
4259 break;
4260
4261 case OPTION_COMPRESS_DEBUG_SECTIONS:
4262 if (optarg)
4263 {
4264 if (strcasecmp (optarg, "none") == 0)
4265 do_debug_sections = decompress;
4266 else if (strcasecmp (optarg, "zlib") == 0)
4267 do_debug_sections = compress_zlib;
4268 else if (strcasecmp (optarg, "zlib-gnu") == 0)
4269 do_debug_sections = compress_gnu_zlib;
4270 else if (strcasecmp (optarg, "zlib-gabi") == 0)
4271 do_debug_sections = compress_gabi_zlib;
4272 else
4273 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4274 optarg);
4275 }
4276 else
4277 do_debug_sections = compress;
4278 break;
4279
4280 case OPTION_DEBUGGING:
4281 convert_debugging = TRUE;
4282 break;
4283
4284 case OPTION_DECOMPRESS_DEBUG_SECTIONS:
4285 do_debug_sections = decompress;
4286 break;
4287
4288 case OPTION_ELF_STT_COMMON:
4289 if (strcasecmp (optarg, "yes") == 0)
4290 do_elf_stt_common = elf_stt_common;
4291 else if (strcasecmp (optarg, "no") == 0)
4292 do_elf_stt_common = no_elf_stt_common;
4293 else
4294 fatal (_("unrecognized --elf-stt-common= option `%s'"),
4295 optarg);
4296 break;
4297
4298 case OPTION_GAP_FILL:
4299 {
4300 bfd_vma gap_fill_vma;
4301
4302 gap_fill_vma = parse_vma (optarg, "--gap-fill");
4303 gap_fill = (bfd_byte) gap_fill_vma;
4304 if ((bfd_vma) gap_fill != gap_fill_vma)
4305 {
4306 char buff[20];
4307
4308 sprintf_vma (buff, gap_fill_vma);
4309
4310 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4311 buff, gap_fill);
4312 }
4313 gap_fill_set = TRUE;
4314 }
4315 break;
4316
4317 case OPTION_NO_CHANGE_WARNINGS:
4318 change_warn = FALSE;
4319 break;
4320
4321 case OPTION_PAD_TO:
4322 pad_to = parse_vma (optarg, "--pad-to");
4323 pad_to_set = TRUE;
4324 break;
4325
4326 case OPTION_REMOVE_LEADING_CHAR:
4327 remove_leading_char = TRUE;
4328 break;
4329
4330 case OPTION_REDEFINE_SYM:
4331 {
4332 /* Push this redefinition onto redefine_symbol_list. */
4333
4334 int len;
4335 const char *s;
4336 const char *nextarg;
4337 char *source, *target;
4338
4339 s = strchr (optarg, '=');
4340 if (s == NULL)
4341 fatal (_("bad format for %s"), "--redefine-sym");
4342
4343 len = s - optarg;
4344 source = (char *) xmalloc (len + 1);
4345 strncpy (source, optarg, len);
4346 source[len] = '\0';
4347
4348 nextarg = s + 1;
4349 len = strlen (nextarg);
4350 target = (char *) xmalloc (len + 1);
4351 strcpy (target, nextarg);
4352
4353 redefine_list_append ("--redefine-sym", source, target);
4354
4355 free (source);
4356 free (target);
4357 }
4358 break;
4359
4360 case OPTION_REDEFINE_SYMS:
4361 add_redefine_syms_file (optarg);
4362 break;
4363
4364 case OPTION_SET_SECTION_FLAGS:
4365 {
4366 struct section_list *p;
4367 const char *s;
4368 int len;
4369 char *name;
4370
4371 s = strchr (optarg, '=');
4372 if (s == NULL)
4373 fatal (_("bad format for %s"), "--set-section-flags");
4374
4375 len = s - optarg;
4376 name = (char *) xmalloc (len + 1);
4377 strncpy (name, optarg, len);
4378 name[len] = '\0';
4379
4380 p = find_section_list (name, TRUE, SECTION_CONTEXT_SET_FLAGS);
4381
4382 p->flags = parse_flags (s + 1);
4383 }
4384 break;
4385
4386 case OPTION_RENAME_SECTION:
4387 {
4388 flagword flags;
4389 const char *eq, *fl;
4390 char *old_name;
4391 char *new_name;
4392 unsigned int len;
4393
4394 eq = strchr (optarg, '=');
4395 if (eq == NULL)
4396 fatal (_("bad format for %s"), "--rename-section");
4397
4398 len = eq - optarg;
4399 if (len == 0)
4400 fatal (_("bad format for %s"), "--rename-section");
4401
4402 old_name = (char *) xmalloc (len + 1);
4403 strncpy (old_name, optarg, len);
4404 old_name[len] = 0;
4405
4406 eq++;
4407 fl = strchr (eq, ',');
4408 if (fl)
4409 {
4410 flags = parse_flags (fl + 1);
4411 len = fl - eq;
4412 }
4413 else
4414 {
4415 flags = -1;
4416 len = strlen (eq);
4417 }
4418
4419 if (len == 0)
4420 fatal (_("bad format for %s"), "--rename-section");
4421
4422 new_name = (char *) xmalloc (len + 1);
4423 strncpy (new_name, eq, len);
4424 new_name[len] = 0;
4425
4426 add_section_rename (old_name, new_name, flags);
4427 }
4428 break;
4429
4430 case OPTION_SET_START:
4431 set_start = parse_vma (optarg, "--set-start");
4432 set_start_set = TRUE;
4433 break;
4434
4435 case OPTION_SREC_LEN:
4436 Chunk = parse_vma (optarg, "--srec-len");
4437 break;
4438
4439 case OPTION_SREC_FORCES3:
4440 S3Forced = TRUE;
4441 break;
4442
4443 case OPTION_STRIP_SYMBOLS:
4444 add_specific_symbols (optarg, strip_specific_htab);
4445 break;
4446
4447 case OPTION_STRIP_UNNEEDED_SYMBOLS:
4448 add_specific_symbols (optarg, strip_unneeded_htab);
4449 break;
4450
4451 case OPTION_KEEP_SYMBOLS:
4452 add_specific_symbols (optarg, keep_specific_htab);
4453 break;
4454
4455 case OPTION_LOCALIZE_HIDDEN:
4456 localize_hidden = TRUE;
4457 break;
4458
4459 case OPTION_LOCALIZE_SYMBOLS:
4460 add_specific_symbols (optarg, localize_specific_htab);
4461 break;
4462
4463 case OPTION_LONG_SECTION_NAMES:
4464 if (!strcmp ("enable", optarg))
4465 long_section_names = ENABLE;
4466 else if (!strcmp ("disable", optarg))
4467 long_section_names = DISABLE;
4468 else if (!strcmp ("keep", optarg))
4469 long_section_names = KEEP;
4470 else
4471 fatal (_("unknown long section names option '%s'"), optarg);
4472 break;
4473
4474 case OPTION_GLOBALIZE_SYMBOLS:
4475 add_specific_symbols (optarg, globalize_specific_htab);
4476 break;
4477
4478 case OPTION_KEEPGLOBAL_SYMBOLS:
4479 add_specific_symbols (optarg, keepglobal_specific_htab);
4480 break;
4481
4482 case OPTION_WEAKEN_SYMBOLS:
4483 add_specific_symbols (optarg, weaken_specific_htab);
4484 break;
4485
4486 case OPTION_ALT_MACH_CODE:
4487 use_alt_mach_code = strtoul (optarg, NULL, 0);
4488 if (use_alt_mach_code == 0)
4489 fatal (_("unable to parse alternative machine code"));
4490 break;
4491
4492 case OPTION_PREFIX_SYMBOLS:
4493 prefix_symbols_string = optarg;
4494 break;
4495
4496 case OPTION_PREFIX_SECTIONS:
4497 prefix_sections_string = optarg;
4498 break;
4499
4500 case OPTION_PREFIX_ALLOC_SECTIONS:
4501 prefix_alloc_sections_string = optarg;
4502 break;
4503
4504 case OPTION_READONLY_TEXT:
4505 bfd_flags_to_set |= WP_TEXT;
4506 bfd_flags_to_clear &= ~WP_TEXT;
4507 break;
4508
4509 case OPTION_WRITABLE_TEXT:
4510 bfd_flags_to_clear |= WP_TEXT;
4511 bfd_flags_to_set &= ~WP_TEXT;
4512 break;
4513
4514 case OPTION_PURE:
4515 bfd_flags_to_set |= D_PAGED;
4516 bfd_flags_to_clear &= ~D_PAGED;
4517 break;
4518
4519 case OPTION_IMPURE:
4520 bfd_flags_to_clear |= D_PAGED;
4521 bfd_flags_to_set &= ~D_PAGED;
4522 break;
4523
4524 case OPTION_EXTRACT_DWO:
4525 strip_symbols = STRIP_NONDWO;
4526 break;
4527
4528 case OPTION_EXTRACT_SYMBOL:
4529 extract_symbol = TRUE;
4530 break;
4531
4532 case OPTION_REVERSE_BYTES:
4533 {
4534 int prev = reverse_bytes;
4535
4536 reverse_bytes = atoi (optarg);
4537 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
4538 fatal (_("number of bytes to reverse must be positive and even"));
4539
4540 if (prev && prev != reverse_bytes)
4541 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4542 prev);
4543 break;
4544 }
4545
4546 case OPTION_FILE_ALIGNMENT:
4547 pe_file_alignment = parse_vma (optarg, "--file-alignment");
4548 break;
4549
4550 case OPTION_HEAP:
4551 {
4552 char *end;
4553 pe_heap_reserve = strtoul (optarg, &end, 0);
4554 if (end == optarg
4555 || (*end != '.' && *end != '\0'))
4556 non_fatal (_("%s: invalid reserve value for --heap"),
4557 optarg);
4558 else if (*end != '\0')
4559 {
4560 pe_heap_commit = strtoul (end + 1, &end, 0);
4561 if (*end != '\0')
4562 non_fatal (_("%s: invalid commit value for --heap"),
4563 optarg);
4564 }
4565 }
4566 break;
4567
4568 case OPTION_IMAGE_BASE:
4569 pe_image_base = parse_vma (optarg, "--image-base");
4570 break;
4571
4572 case OPTION_SECTION_ALIGNMENT:
4573 pe_section_alignment = parse_vma (optarg,
4574 "--section-alignment");
4575 break;
4576
4577 case OPTION_SUBSYSTEM:
4578 set_pe_subsystem (optarg);
4579 break;
4580
4581 case OPTION_STACK:
4582 {
4583 char *end;
4584 pe_stack_reserve = strtoul (optarg, &end, 0);
4585 if (end == optarg
4586 || (*end != '.' && *end != '\0'))
4587 non_fatal (_("%s: invalid reserve value for --stack"),
4588 optarg);
4589 else if (*end != '\0')
4590 {
4591 pe_stack_commit = strtoul (end + 1, &end, 0);
4592 if (*end != '\0')
4593 non_fatal (_("%s: invalid commit value for --stack"),
4594 optarg);
4595 }
4596 }
4597 break;
4598
4599 case 0:
4600 /* We've been given a long option. */
4601 break;
4602
4603 case 'H':
4604 case 'h':
4605 copy_usage (stdout, 0);
4606
4607 default:
4608 copy_usage (stderr, 1);
4609 }
4610 }
4611
4612 if (formats_info)
4613 {
4614 display_info ();
4615 return 0;
4616 }
4617
4618 if (show_version)
4619 print_version ("objcopy");
4620
4621 if (interleave && copy_byte == -1)
4622 fatal (_("interleave start byte must be set with --byte"));
4623
4624 if (copy_byte >= interleave)
4625 fatal (_("byte number must be less than interleave"));
4626
4627 if (copy_width > interleave - copy_byte)
4628 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4629
4630 if (optind == argc || optind + 2 < argc)
4631 copy_usage (stderr, 1);
4632
4633 input_filename = argv[optind];
4634 if (optind + 1 < argc)
4635 output_filename = argv[optind + 1];
4636
4637 default_deterministic ();
4638
4639 /* Default is to strip no symbols. */
4640 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
4641 strip_symbols = STRIP_NONE;
4642
4643 if (output_target == NULL)
4644 output_target = input_target;
4645
4646 /* Convert input EFI target to PEI target. */
4647 if (input_target != NULL
4648 && strncmp (input_target, "efi-", 4) == 0)
4649 {
4650 char *efi;
4651
4652 efi = xstrdup (output_target + 4);
4653 if (strncmp (efi, "bsdrv-", 6) == 0
4654 || strncmp (efi, "rtdrv-", 6) == 0)
4655 efi += 2;
4656 else if (strncmp (efi, "app-", 4) != 0)
4657 fatal (_("unknown input EFI target: %s"), input_target);
4658
4659 input_target = efi;
4660 convert_efi_target (efi);
4661 }
4662
4663 /* Convert output EFI target to PEI target. */
4664 if (output_target != NULL
4665 && strncmp (output_target, "efi-", 4) == 0)
4666 {
4667 char *efi;
4668
4669 efi = xstrdup (output_target + 4);
4670 if (strncmp (efi, "app-", 4) == 0)
4671 {
4672 if (pe_subsystem == -1)
4673 pe_subsystem = IMAGE_SUBSYSTEM_EFI_APPLICATION;
4674 }
4675 else if (strncmp (efi, "bsdrv-", 6) == 0)
4676 {
4677 if (pe_subsystem == -1)
4678 pe_subsystem = IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER;
4679 efi += 2;
4680 }
4681 else if (strncmp (efi, "rtdrv-", 6) == 0)
4682 {
4683 if (pe_subsystem == -1)
4684 pe_subsystem = IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER;
4685 efi += 2;
4686 }
4687 else
4688 fatal (_("unknown output EFI target: %s"), output_target);
4689
4690 if (pe_file_alignment == (bfd_vma) -1)
4691 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
4692 if (pe_section_alignment == (bfd_vma) -1)
4693 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
4694
4695 output_target = efi;
4696 convert_efi_target (efi);
4697 }
4698
4699 if (preserve_dates)
4700 if (stat (input_filename, & statbuf) < 0)
4701 fatal (_("warning: could not locate '%s'. System error message: %s"),
4702 input_filename, strerror (errno));
4703
4704 /* If there is no destination file, or the source and destination files
4705 are the same, then create a temp and rename the result into the input. */
4706 if (output_filename == NULL
4707 || filename_cmp (input_filename, output_filename) == 0)
4708 tmpname = make_tempname (input_filename);
4709 else
4710 tmpname = output_filename;
4711
4712 if (tmpname == NULL)
4713 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4714 input_filename, strerror (errno));
4715
4716 copy_file (input_filename, tmpname, input_target, output_target, input_arch);
4717 if (status == 0)
4718 {
4719 if (preserve_dates)
4720 set_times (tmpname, &statbuf);
4721 if (tmpname != output_filename)
4722 status = (smart_rename (tmpname, input_filename,
4723 preserve_dates) != 0);
4724 }
4725 else
4726 unlink_if_ordinary (tmpname);
4727
4728 if (change_warn)
4729 {
4730 struct section_list *p;
4731
4732 for (p = change_sections; p != NULL; p = p->next)
4733 {
4734 if (! p->used)
4735 {
4736 if (p->context & (SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA))
4737 {
4738 char buff [20];
4739
4740 sprintf_vma (buff, p->vma_val);
4741
4742 /* xgettext:c-format */
4743 non_fatal (_("%s %s%c0x%s never used"),
4744 "--change-section-vma",
4745 p->pattern,
4746 p->context & SECTION_CONTEXT_SET_VMA ? '=' : '+',
4747 buff);
4748 }
4749
4750 if (p->context & (SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA))
4751 {
4752 char buff [20];
4753
4754 sprintf_vma (buff, p->lma_val);
4755
4756 /* xgettext:c-format */
4757 non_fatal (_("%s %s%c0x%s never used"),
4758 "--change-section-lma",
4759 p->pattern,
4760 p->context & SECTION_CONTEXT_SET_LMA ? '=' : '+',
4761 buff);
4762 }
4763 }
4764 }
4765 }
4766
4767 return 0;
4768 }
4769
4770 int
4771 main (int argc, char *argv[])
4772 {
4773 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4774 setlocale (LC_MESSAGES, "");
4775 #endif
4776 #if defined (HAVE_SETLOCALE)
4777 setlocale (LC_CTYPE, "");
4778 #endif
4779 bindtextdomain (PACKAGE, LOCALEDIR);
4780 textdomain (PACKAGE);
4781
4782 program_name = argv[0];
4783 xmalloc_set_program_name (program_name);
4784
4785 START_PROGRESS (program_name, 0);
4786
4787 expandargv (&argc, &argv);
4788
4789 strip_symbols = STRIP_UNDEF;
4790 discard_locals = LOCALS_UNDEF;
4791
4792 bfd_init ();
4793 set_default_bfd_target ();
4794
4795 if (is_strip < 0)
4796 {
4797 int i = strlen (program_name);
4798 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4799 /* Drop the .exe suffix, if any. */
4800 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
4801 {
4802 i -= 4;
4803 program_name[i] = '\0';
4804 }
4805 #endif
4806 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
4807 }
4808
4809 create_symbol_htabs ();
4810
4811 if (argv != NULL)
4812 bfd_set_error_program_name (argv[0]);
4813
4814 if (is_strip)
4815 strip_main (argc, argv);
4816 else
4817 copy_main (argc, argv);
4818
4819 END_PROGRESS (program_name);
4820
4821 return status;
4822 }