projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
2007-07-05 Markus Deuling <deuling@de.ibm.com>
[deliverable/binutils-gdb.git] / binutils / objcopy.c
CommitLineData
252b5132 1/* objcopy.c -- copy object file from input to output, optionally massaging it.
8c2bc687 2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
92f01d61 3 2001, 2002, 2003, 2004, 2005, 2006, 2007
252b5132
RH		 4 Free Software Foundation, Inc.
5
6 This file is part of GNU Binutils.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
b43b5d5f
NC		 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
21 02110-1301, USA. */
252b5132 22\f
3db64b00 23#include "sysdep.h"
252b5132
RH		 24#include "bfd.h"
25#include "progress.h"
252b5132
RH		 26#include "getopt.h"
27#include "libiberty.h"
3db64b00 28#include "bucomm.h"
252b5132 29#include "budbg.h"
5af11cab 30#include "filenames.h"
5fe11841 31#include "fnmatch.h"
f0312d39 32#include "elf-bfd.h"
252b5132 33#include <sys/stat.h>
6e2c86ac 34#include "libbfd.h"
252b5132
RH		 35
36/* A list of symbols to explicitly strip out, or to keep. A linked
37 list is good enough for a small number from the command line, but
38 this will slow things down a lot if many symbols are being
0af11b59 39 deleted. */
252b5132
RH		 40
41struct symlist
42{
43 const char *name;
44 struct symlist *next;
45};
46
57938635
AM		 47/* A list to support redefine_sym. */
48struct redefine_node
49{
50 char *source;
51 char *target;
52 struct redefine_node *next;
53};
54
594ef5db
NC		 55typedef struct section_rename
56{
57 const char * old_name;
58 const char * new_name;
59 flagword flags;
60 struct section_rename * next;
61}
62section_rename;
63
64/* List of sections to be renamed. */
84e2f313 65static section_rename *section_rename_list;
594ef5db 66
252b5132
RH		 67#define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;}
68
84e2f313
NC		 69static asymbol **isympp = NULL; /* Input symbols. */
70static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
252b5132
RH		 71
72/* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */
73static int copy_byte = -1;
74static int interleave = 4;
75
b34976b6
AM		 76static bfd_boolean verbose; /* Print file and target names. */
77static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
252b5132
RH		 78static int status = 0; /* Exit status. */
79
80enum strip_action
81 {
82 STRIP_UNDEF,
84e2f313
NC		 83 STRIP_NONE, /* Don't strip. */
84 STRIP_DEBUG, /* Strip all debugger symbols. */
85 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
ed1653a7 86 STRIP_NONDEBUG, /* Strip everything but debug info. */
84e2f313 87 STRIP_ALL /* Strip all symbols. */
252b5132
RH		 88 };
89
0af11b59 90/* Which symbols to remove. */
252b5132
RH		 91static enum strip_action strip_symbols;
92
93enum locals_action
94 {
95 LOCALS_UNDEF,
84e2f313
NC		 96 LOCALS_START_L, /* Discard locals starting with L. */
97 LOCALS_ALL /* Discard all locals. */
252b5132
RH		 98 };
99
100/* Which local symbols to remove. Overrides STRIP_ALL. */
101static enum locals_action discard_locals;
102
103/* What kind of change to perform. */
104enum change_action
105{
106 CHANGE_IGNORE,
107 CHANGE_MODIFY,
108 CHANGE_SET
109};
110
111/* Structure used to hold lists of sections and actions to take. */
112struct section_list
113{
b34976b6
AM		 114 struct section_list * next; /* Next section to change. */
115 const char * name; /* Section name. */
116 bfd_boolean used; /* Whether this entry was used. */
117 bfd_boolean remove; /* Whether to remove this section. */
118 bfd_boolean copy; /* Whether to copy this section. */
119 enum change_action change_vma;/* Whether to change or set VMA. */
120 bfd_vma vma_val; /* Amount to change by or set to. */
121 enum change_action change_lma;/* Whether to change or set LMA. */
122 bfd_vma lma_val; /* Amount to change by or set to. */
123 bfd_boolean set_flags; /* Whether to set the section flags. */
124 flagword flags; /* What to set the section flags to. */
252b5132
RH		 125};
126
127static struct section_list *change_sections;
594ef5db 128
b34976b6
AM		 129/* TRUE if some sections are to be removed. */
130static bfd_boolean sections_removed;
594ef5db 131
b34976b6
AM		 132/* TRUE if only some sections are to be copied. */
133static bfd_boolean sections_copied;
252b5132
RH		 134
135/* Changes to the start address. */
136static bfd_vma change_start = 0;
b34976b6 137static bfd_boolean set_start_set = FALSE;
252b5132
RH		 138static bfd_vma set_start;
139
140/* Changes to section addresses. */
141static bfd_vma change_section_address = 0;
142
143/* Filling gaps between sections. */
b34976b6 144static bfd_boolean gap_fill_set = FALSE;
252b5132
RH		 145static bfd_byte gap_fill = 0;
146
147/* Pad to a given address. */
b34976b6 148static bfd_boolean pad_to_set = FALSE;
252b5132
RH		 149static bfd_vma pad_to;
150
f9d4ad2a
NC		 151/* Use alternative machine code? */
152static unsigned long use_alt_mach_code = 0;
1ae8b3d2 153
4087920c
MR		 154/* Output BFD flags user wants to set or clear */
155static flagword bfd_flags_to_set;
156static flagword bfd_flags_to_clear;
157
252b5132 158/* List of sections to add. */
252b5132
RH		 159struct section_add
160{
161 /* Next section to add. */
162 struct section_add *next;
163 /* Name of section to add. */
164 const char *name;
165 /* Name of file holding section contents. */
166 const char *filename;
167 /* Size of file. */
168 size_t size;
169 /* Contents of file. */
170 bfd_byte *contents;
171 /* BFD section, after it has been added. */
172 asection *section;
173};
174
594ef5db 175/* List of sections to add to the output BFD. */
252b5132
RH		 176static struct section_add *add_sections;
177
2593f09a
NC		 178/* If non-NULL the argument to --add-gnu-debuglink.
179 This should be the filename to store in the .gnu_debuglink section. */
180static const char * gnu_debuglink_filename = NULL;
181
252b5132 182/* Whether to convert debugging information. */
b34976b6 183static bfd_boolean convert_debugging = FALSE;
252b5132
RH		 184
185/* Whether to change the leading character in symbol names. */
b34976b6 186static bfd_boolean change_leading_char = FALSE;
252b5132
RH		 187
188/* Whether to remove the leading character from global symbol names. */
b34976b6 189static bfd_boolean remove_leading_char = FALSE;
252b5132 190
aaad4cf3 191/* Whether to permit wildcard in symbol comparison. */
5fe11841
NC		 192static bfd_boolean wildcard = FALSE;
193
d58c2e3a
RS		 194/* True if --localize-hidden is in effect. */
195static bfd_boolean localize_hidden = FALSE;
196
16b2b71c
NC		 197/* List of symbols to strip, keep, localize, keep-global, weaken,
198 or redefine. */
252b5132 199static struct symlist *strip_specific_list = NULL;
bcf32829 200static struct symlist *strip_unneeded_list = NULL;
252b5132
RH		 201static struct symlist *keep_specific_list = NULL;
202static struct symlist *localize_specific_list = NULL;
7b4a0685 203static struct symlist *globalize_specific_list = NULL;
16b2b71c 204static struct symlist *keepglobal_specific_list = NULL;
252b5132 205static struct symlist *weaken_specific_list = NULL;
57938635 206static struct redefine_node *redefine_sym_list = NULL;
252b5132 207
b34976b6
AM		 208/* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
209static bfd_boolean weaken = FALSE;
252b5132 210
1637cd90
JB		 211/* If this is TRUE, we retain BSF_FILE symbols. */
212static bfd_boolean keep_file_symbols = FALSE;
213
d7fb0dd2
NC		 214/* Prefix symbols/sections. */
215static char *prefix_symbols_string = 0;
216static char *prefix_sections_string = 0;
217static char *prefix_alloc_sections_string = 0;
218
d3e52d40
RS		 219/* True if --extract-symbol was passed on the command line. */
220static bfd_boolean extract_symbol = FALSE;
221
9e48b4c6
NC		 222/* If `reverse_bytes' is nonzero, then reverse the order of every chunk
223 of <reverse_bytes> bytes within each output section. */
224static int reverse_bytes = 0;
225
226
252b5132 227/* 150 isn't special; it's just an arbitrary non-ASCII char value. */
84e2f313
NC		 228enum command_line_switch
229 {
230 OPTION_ADD_SECTION=150,
231 OPTION_CHANGE_ADDRESSES,
232 OPTION_CHANGE_LEADING_CHAR,
233 OPTION_CHANGE_START,
234 OPTION_CHANGE_SECTION_ADDRESS,
235 OPTION_CHANGE_SECTION_LMA,
236 OPTION_CHANGE_SECTION_VMA,
237 OPTION_CHANGE_WARNINGS,
238 OPTION_DEBUGGING,
239 OPTION_GAP_FILL,
240 OPTION_NO_CHANGE_WARNINGS,
241 OPTION_PAD_TO,
242 OPTION_REMOVE_LEADING_CHAR,
243 OPTION_SET_SECTION_FLAGS,
244 OPTION_SET_START,
245 OPTION_STRIP_UNNEEDED,
246 OPTION_WEAKEN,
247 OPTION_REDEFINE_SYM,
248 OPTION_REDEFINE_SYMS,
249 OPTION_SREC_LEN,
250 OPTION_SREC_FORCES3,
251 OPTION_STRIP_SYMBOLS,
bcf32829
JB		 252 OPTION_STRIP_UNNEEDED_SYMBOL,
253 OPTION_STRIP_UNNEEDED_SYMBOLS,
84e2f313 254 OPTION_KEEP_SYMBOLS,
d58c2e3a 255 OPTION_LOCALIZE_HIDDEN,
84e2f313 256 OPTION_LOCALIZE_SYMBOLS,
7b4a0685
NC		 257 OPTION_GLOBALIZE_SYMBOL,
258 OPTION_GLOBALIZE_SYMBOLS,
84e2f313
NC		 259 OPTION_KEEPGLOBAL_SYMBOLS,
260 OPTION_WEAKEN_SYMBOLS,
261 OPTION_RENAME_SECTION,
262 OPTION_ALT_MACH_CODE,
263 OPTION_PREFIX_SYMBOLS,
264 OPTION_PREFIX_SECTIONS,
265 OPTION_PREFIX_ALLOC_SECTIONS,
266 OPTION_FORMATS_INFO,
267 OPTION_ADD_GNU_DEBUGLINK,
4087920c 268 OPTION_ONLY_KEEP_DEBUG,
1637cd90 269 OPTION_KEEP_FILE_SYMBOLS,
4087920c
MR		 270 OPTION_READONLY_TEXT,
271 OPTION_WRITABLE_TEXT,
272 OPTION_PURE,
d3e52d40 273 OPTION_IMPURE,
9e48b4c6
NC		 274 OPTION_EXTRACT_SYMBOL,
275 OPTION_REVERSE_BYTES
84e2f313 276 };
252b5132
RH		 277
278/* Options to handle if running as "strip". */
279
280static struct option strip_options[] =
281{
282 {"discard-all", no_argument, 0, 'x'},
283 {"discard-locals", no_argument, 0, 'X'},
284 {"format", required_argument, 0, 'F'}, /* Obsolete */
285 {"help", no_argument, 0, 'h'},
7c29036b 286 {"info", no_argument, 0, OPTION_FORMATS_INFO},
252b5132
RH		 287 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
288 {"input-target", required_argument, 0, 'I'},
1637cd90 289 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
252b5132 290 {"keep-symbol", required_argument, 0, 'K'},
ed1653a7 291 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
252b5132
RH		 292 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
293 {"output-target", required_argument, 0, 'O'},
af3bdff7 294 {"output-file", required_argument, 0, 'o'},
252b5132
RH		 295 {"preserve-dates", no_argument, 0, 'p'},
296 {"remove-section", required_argument, 0, 'R'},
297 {"strip-all", no_argument, 0, 's'},
298 {"strip-debug", no_argument, 0, 'S'},
299 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
300 {"strip-symbol", required_argument, 0, 'N'},
301 {"target", required_argument, 0, 'F'},
302 {"verbose", no_argument, 0, 'v'},
303 {"version", no_argument, 0, 'V'},
5fe11841 304 {"wildcard", no_argument, 0, 'w'},
252b5132
RH		 305 {0, no_argument, 0, 0}
306};
307
308/* Options to handle if running as "objcopy". */
309
310static struct option copy_options[] =
311{
2593f09a 312 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
252b5132
RH		 313 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
314 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
315 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
316 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
317 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
d7fb0dd2 318 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
43a0748c 319 {"binary-architecture", required_argument, 0, 'B'},
252b5132
RH		 320 {"byte", required_argument, 0, 'b'},
321 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
322 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
323 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
324 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
325 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
326 {"change-start", required_argument, 0, OPTION_CHANGE_START},
327 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
328 {"debugging", no_argument, 0, OPTION_DEBUGGING},
329 {"discard-all", no_argument, 0, 'x'},
330 {"discard-locals", no_argument, 0, 'X'},
d3e52d40 331 {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
252b5132
RH		 332 {"format", required_argument, 0, 'F'}, /* Obsolete */
333 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
7b4a0685
NC		 334 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
335 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
252b5132 336 {"help", no_argument, 0, 'h'},
4087920c 337 {"impure", no_argument, 0, OPTION_IMPURE},
7c29036b 338 {"info", no_argument, 0, OPTION_FORMATS_INFO},
252b5132
RH		 339 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
340 {"input-target", required_argument, 0, 'I'},
341 {"interleave", required_argument, 0, 'i'},
1637cd90 342 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
d7fb0dd2
NC		 343 {"keep-global-symbol", required_argument, 0, 'G'},
344 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
252b5132 345 {"keep-symbol", required_argument, 0, 'K'},
d7fb0dd2 346 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
d58c2e3a 347 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
d7fb0dd2
NC		 348 {"localize-symbol", required_argument, 0, 'L'},
349 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
252b5132
RH		 350 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
351 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
ed1653a7 352 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
d7fb0dd2 353 {"only-section", required_argument, 0, 'j'},
252b5132
RH		 354 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
355 {"output-target", required_argument, 0, 'O'},
356 {"pad-to", required_argument, 0, OPTION_PAD_TO},
d7fb0dd2
NC		 357 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
358 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
359 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
252b5132 360 {"preserve-dates", no_argument, 0, 'p'},
4087920c
MR		 361 {"pure", no_argument, 0, OPTION_PURE},
362 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
d7fb0dd2 363 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
92991082 364 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
252b5132
RH		 365 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
366 {"remove-section", required_argument, 0, 'R'},
594ef5db 367 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
9e48b4c6 368 {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
252b5132
RH		 369 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
370 {"set-start", required_argument, 0, OPTION_SET_START},
d7fb0dd2
NC		 371 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
372 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
252b5132
RH		 373 {"strip-all", no_argument, 0, 'S'},
374 {"strip-debug", no_argument, 0, 'g'},
375 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
bcf32829
JB		 376 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
377 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
252b5132 378 {"strip-symbol", required_argument, 0, 'N'},
d7fb0dd2 379 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
252b5132
RH		 380 {"target", required_argument, 0, 'F'},
381 {"verbose", no_argument, 0, 'v'},
382 {"version", no_argument, 0, 'V'},
383 {"weaken", no_argument, 0, OPTION_WEAKEN},
384 {"weaken-symbol", required_argument, 0, 'W'},
16b2b71c 385 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
5fe11841 386 {"wildcard", no_argument, 0, 'w'},
4087920c 387 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
252b5132
RH		 388 {0, no_argument, 0, 0}
389};
390
391/* IMPORTS */
392extern char *program_name;
393
394/* This flag distinguishes between strip and objcopy:
395 1 means this is 'strip'; 0 means this is 'objcopy'.
0af11b59 396 -1 means if we should use argv[0] to decide. */
252b5132
RH		 397extern int is_strip;
398
420496c1
NC		 399/* The maximum length of an S record. This variable is declared in srec.c
400 and can be modified by the --srec-len parameter. */
401extern unsigned int Chunk;
402
403/* Restrict the generation of Srecords to type S3 only.
404 This variable is declare in bfd/srec.c and can be toggled
405 on by the --srec-forceS3 command line switch. */
b34976b6 406extern bfd_boolean S3Forced;
252b5132 407
b749473b
NC		 408/* Defined in bfd/binary.c. Used to set architecture and machine of input
409 binary files. */
410extern enum bfd_architecture bfd_external_binary_architecture;
411extern unsigned long bfd_external_machine;
43a0748c 412
d3ba0551
AM		 413/* Forward declarations. */
414static void setup_section (bfd *, asection *, void *);
80fccad2 415static void setup_bfd_headers (bfd *, bfd *);
d3ba0551
AM		 416static void copy_section (bfd *, asection *, void *);
417static void get_sections (bfd *, asection *, void *);
418static int compare_section_lma (const void *, const void *);
419static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
420static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
421static const char *lookup_sym_redefinition (const char *);
594ef5db 422\f
252b5132 423static void
84e2f313 424copy_usage (FILE *stream, int exit_status)
252b5132 425{
8b53311e
NC		 426 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
427 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
6364e0b4 428 fprintf (stream, _(" The options are:\n"));
252b5132 429 fprintf (stream, _("\
d5bcb29d
NC		 430 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
431 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
43a0748c 432 -B --binary-architecture <arch> Set arch of output file, when input is binary\n\
d5bcb29d
NC		 433 -F --target <bfdname> Set both input and output format to <bfdname>\n\
434 --debugging Convert debugging information, if possible\n\
435 -p --preserve-dates Copy modified/access timestamps to the output\n\
436 -j --only-section <name> Only copy section <name> into the output\n\
2593f09a 437 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
d5bcb29d
NC		 438 -R --remove-section <name> Remove section <name> from the output\n\
439 -S --strip-all Remove all symbol and relocation information\n\
2593f09a 440 -g --strip-debug Remove all debugging symbols & sections\n\
d5bcb29d
NC		 441 --strip-unneeded Remove all symbols not needed by relocations\n\
442 -N --strip-symbol <name> Do not copy symbol <name>\n\
bcf32829
JB		 443 --strip-unneeded-symbol <name>\n\
444 Do not copy symbol <name> unless needed by\n\
445 relocations\n\
6ea3dd37 446 --only-keep-debug Strip everything but the debug information\n\
d3e52d40 447 --extract-symbol Remove section contents but keep symbols\n\
e7f918ad 448 -K --keep-symbol <name> Do not strip symbol <name>\n\
1637cd90 449 --keep-file-symbols Do not strip file symbol(s)\n\
d58c2e3a 450 --localize-hidden Turn all ELF hidden symbols into locals\n\
d5bcb29d 451 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
7b4a0685 452 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
16b2b71c 453 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
d5bcb29d
NC		 454 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
455 --weaken Force all global symbols to be marked as weak\n\
a95b5cf9 456 -w --wildcard Permit wildcard in symbol comparison\n\
d5bcb29d
NC		 457 -x --discard-all Remove all non-global symbols\n\
458 -X --discard-locals Remove any compiler-generated symbols\n\
459 -i --interleave <number> Only copy one out of every <number> bytes\n\
460 -b --byte <num> Select byte <num> in every interleaved block\n\
461 --gap-fill <val> Fill gaps between sections with <val>\n\
462 --pad-to <addr> Pad the last section up to address <addr>\n\
463 --set-start <addr> Set the start address to <addr>\n\
464 {--change-start|--adjust-start} <incr>\n\
465 Add <incr> to the start address\n\
466 {--change-addresses|--adjust-vma} <incr>\n\
467 Add <incr> to LMA, VMA and start addresses\n\
468 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
469 Change LMA and VMA of section <name> by <val>\n\
470 --change-section-lma <name>{=|+|-}<val>\n\
471 Change the LMA of section <name> by <val>\n\
472 --change-section-vma <name>{=|+|-}<val>\n\
473 Change the VMA of section <name> by <val>\n\
474 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
475 Warn if a named section does not exist\n\
476 --set-section-flags <name>=<flags>\n\
477 Set section <name>'s properties to <flags>\n\
478 --add-section <name>=<file> Add section <name> found in <file> to output\n\
594ef5db 479 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
d5bcb29d
NC		 480 --change-leading-char Force output format's leading character style\n\
481 --remove-leading-char Remove leading character from global symbols\n\
9e48b4c6 482 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
57938635 483 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
92991082
JT		 484 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
485 listed in <file>\n\
420496c1
NC		 486 --srec-len <number> Restrict the length of generated Srecords\n\
487 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
16b2b71c 488 --strip-symbols <file> -N for all symbols listed in <file>\n\
bcf32829
JB		 489 --strip-unneeded-symbols <file>\n\
490 --strip-unneeded-symbol for all symbols listed\n\
491 in <file>\n\
16b2b71c
NC		 492 --keep-symbols <file> -K for all symbols listed in <file>\n\
493 --localize-symbols <file> -L for all symbols listed in <file>\n\
7b4a0685 494 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
16b2b71c
NC		 495 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
496 --weaken-symbols <file> -W for all symbols listed in <file>\n\
f9d4ad2a 497 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
4087920c
MR		 498 --writable-text Mark the output text as writable\n\
499 --readonly-text Make the output text write protected\n\
500 --pure Mark the output file as demand paged\n\
501 --impure Mark the output file as impure\n\
d7fb0dd2
NC		 502 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
503 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
504 --prefix-alloc-sections <prefix>\n\
505 Add <prefix> to start of every allocatable\n\
506 section name\n\
d5bcb29d 507 -v --verbose List all object files modified\n\
07012eee 508 @<file> Read options from <file>\n\
d5bcb29d
NC		 509 -V --version Display this program's version number\n\
510 -h --help Display this output\n\
7c29036b 511 --info List object formats & architectures supported\n\
d5bcb29d 512"));
252b5132 513 list_supported_targets (program_name, stream);
92f01d61 514 if (REPORT_BUGS_TO[0] && exit_status == 0)
8ad3436c 515 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
252b5132
RH		 516 exit (exit_status);
517}
518
519static void
84e2f313 520strip_usage (FILE *stream, int exit_status)
252b5132 521{
8b53311e
NC		 522 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
523 fprintf (stream, _(" Removes symbols and sections from files\n"));
6364e0b4 524 fprintf (stream, _(" The options are:\n"));
252b5132 525 fprintf (stream, _("\
8b53311e
NC		 526 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
527 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
528 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
d5bcb29d 529 -p --preserve-dates Copy modified/access timestamps to the output\n\
8b53311e 530 -R --remove-section=<name> Remove section <name> from the output\n\
d5bcb29d 531 -s --strip-all Remove all symbol and relocation information\n\
2593f09a 532 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
d5bcb29d 533 --strip-unneeded Remove all symbols not needed by relocations\n\
6ea3dd37 534 --only-keep-debug Strip everything but the debug information\n\
8b53311e 535 -N --strip-symbol=<name> Do not copy symbol <name>\n\
5219e4c0 536 -K --keep-symbol=<name> Do not strip symbol <name>\n\
1637cd90 537 --keep-file-symbols Do not strip file symbol(s)\n\
a95b5cf9 538 -w --wildcard Permit wildcard in symbol comparison\n\
d5bcb29d
NC		 539 -x --discard-all Remove all non-global symbols\n\
540 -X --discard-locals Remove any compiler-generated symbols\n\
541 -v --verbose List all object files modified\n\
542 -V --version Display this program's version number\n\
543 -h --help Display this output\n\
7c29036b 544 --info List object formats & architectures supported\n\
d5bcb29d
NC		 545 -o <file> Place stripped output into <file>\n\
546"));
547
252b5132 548 list_supported_targets (program_name, stream);
92f01d61 549 if (REPORT_BUGS_TO[0] && exit_status == 0)
8ad3436c 550 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
252b5132
RH		 551 exit (exit_status);
552}
553
554/* Parse section flags into a flagword, with a fatal error if the
555 string can't be parsed. */
556
557static flagword
84e2f313 558parse_flags (const char *s)
252b5132
RH		 559{
560 flagword ret;
561 const char *snext;
562 int len;
563
564 ret = SEC_NO_FLAGS;
565
566 do
567 {
568 snext = strchr (s, ',');
569 if (snext == NULL)
570 len = strlen (s);
571 else
572 {
573 len = snext - s;
574 ++snext;
575 }
576
577 if (0) ;
578#define PARSE_FLAG(fname,fval) \
579 else if (strncasecmp (fname, s, len) == 0) ret |= fval
580 PARSE_FLAG ("alloc", SEC_ALLOC);
581 PARSE_FLAG ("load", SEC_LOAD);
3994e2c6 582 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
252b5132 583 PARSE_FLAG ("readonly", SEC_READONLY);
3994e2c6 584 PARSE_FLAG ("debug", SEC_DEBUGGING);
252b5132
RH		 585 PARSE_FLAG ("code", SEC_CODE);
586 PARSE_FLAG ("data", SEC_DATA);
587 PARSE_FLAG ("rom", SEC_ROM);
ebe372c1 588 PARSE_FLAG ("share", SEC_COFF_SHARED);
252b5132
RH		 589 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
590#undef PARSE_FLAG
591 else
592 {
593 char *copy;
594
595 copy = xmalloc (len + 1);
596 strncpy (copy, s, len);
597 copy[len] = '\0';
598 non_fatal (_("unrecognized section flag `%s'"), copy);
57938635
AM		 599 fatal (_("supported flags: %s"),
600 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
252b5132
RH		 601 }
602
603 s = snext;
604 }
605 while (s != NULL);
606
607 return ret;
608}
609
610/* Find and optionally add an entry in the change_sections list. */
611
612static struct section_list *
84e2f313 613find_section_list (const char *name, bfd_boolean add)
252b5132 614{
84e2f313 615 struct section_list *p;
252b5132
RH		 616
617 for (p = change_sections; p != NULL; p = p->next)
618 if (strcmp (p->name, name) == 0)
619 return p;
620
621 if (! add)
622 return NULL;
623
d3ba0551 624 p = xmalloc (sizeof (struct section_list));
252b5132 625 p->name = name;
b34976b6
AM		 626 p->used = FALSE;
627 p->remove = FALSE;
628 p->copy = FALSE;
252b5132
RH		 629 p->change_vma = CHANGE_IGNORE;
630 p->change_lma = CHANGE_IGNORE;
631 p->vma_val = 0;
632 p->lma_val = 0;
b34976b6 633 p->set_flags = FALSE;
252b5132
RH		 634 p->flags = 0;
635
636 p->next = change_sections;
637 change_sections = p;
638
639 return p;
640}
641
642/* Add a symbol to strip_specific_list. */
643
57938635 644static void
84e2f313 645add_specific_symbol (const char *name, struct symlist **list)
252b5132
RH		 646{
647 struct symlist *tmp_list;
648
d3ba0551 649 tmp_list = xmalloc (sizeof (struct symlist));
252b5132
RH		 650 tmp_list->name = name;
651 tmp_list->next = *list;
652 *list = tmp_list;
653}
654
0af11b59 655/* Add symbols listed in `filename' to strip_specific_list. */
16b2b71c
NC		 656
657#define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
658#define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
659
660static void
84e2f313 661add_specific_symbols (const char *filename, struct symlist **list)
16b2b71c 662{
f24ddbdd 663 off_t size;
16b2b71c
NC		 664 FILE * f;
665 char * line;
666 char * buffer;
667 unsigned int line_count;
0af11b59 668
f24ddbdd
NC		 669 size = get_file_size (filename);
670 if (size == 0)
d68c385b
NC		 671 {
672 status = 1;
673 return;
674 }
16b2b71c 675
f24ddbdd 676 buffer = xmalloc (size + 2);
16b2b71c
NC		 677 f = fopen (filename, FOPEN_RT);
678 if (f == NULL)
f24ddbdd 679 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
16b2b71c 680
f24ddbdd 681 if (fread (buffer, 1, size, f) == 0 || ferror (f))
16b2b71c
NC		 682 fatal (_("%s: fread failed"), filename);
683
684 fclose (f);
f24ddbdd
NC		 685 buffer [size] = '\n';
686 buffer [size + 1] = '\0';
16b2b71c
NC		 687
688 line_count = 1;
0af11b59 689
16b2b71c
NC		 690 for (line = buffer; * line != '\0'; line ++)
691 {
692 char * eol;
693 char * name;
694 char * name_end;
b34976b6 695 int finished = FALSE;
16b2b71c
NC		 696
697 for (eol = line;; eol ++)
698 {
699 switch (* eol)
700 {
701 case '\n':
702 * eol = '\0';
703 /* Cope with \n\r. */
704 if (eol[1] == '\r')
705 ++ eol;
b34976b6 706 finished = TRUE;
16b2b71c 707 break;
0af11b59 708
16b2b71c
NC		 709 case '\r':
710 * eol = '\0';
711 /* Cope with \r\n. */
712 if (eol[1] == '\n')
713 ++ eol;
b34976b6 714 finished = TRUE;
16b2b71c 715 break;
0af11b59 716
16b2b71c 717 case 0:
b34976b6 718 finished = TRUE;
16b2b71c 719 break;
0af11b59 720
16b2b71c
NC		 721 case '#':
722 /* Line comment, Terminate the line here, in case a
723 name is present and then allow the rest of the
724 loop to find the real end of the line. */
725 * eol = '\0';
726 break;
0af11b59 727
16b2b71c
NC		 728 default:
729 break;
730 }
731
732 if (finished)
733 break;
734 }
735
736 /* A name may now exist somewhere between 'line' and 'eol'.
737 Strip off leading whitespace and trailing whitespace,
738 then add it to the list. */
739 for (name = line; IS_WHITESPACE (* name); name ++)
740 ;
741 for (name_end = name;
742 (! IS_WHITESPACE (* name_end))
743 && (! IS_LINE_TERMINATOR (* name_end));
0af11b59
KH		 744 name_end ++)
745 ;
16b2b71c
NC		 746
747 if (! IS_LINE_TERMINATOR (* name_end))
748 {
749 char * extra;
750
751 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
752 ;
753
754 if (! IS_LINE_TERMINATOR (* extra))
d412a550
NC		 755 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
756 filename, line_count);
16b2b71c 757 }
0af11b59 758
16b2b71c
NC		 759 * name_end = '\0';
760
761 if (name_end > name)
762 add_specific_symbol (name, list);
763
764 /* Advance line pointer to end of line. The 'eol ++' in the for
765 loop above will then advance us to the start of the next line. */
766 line = eol;
767 line_count ++;
768 }
769}
770
252b5132
RH		 771/* See whether a symbol should be stripped or kept based on
772 strip_specific_list and keep_symbols. */
773
b34976b6 774static bfd_boolean
84e2f313 775is_specified_symbol (const char *name, struct symlist *list)
252b5132
RH		 776{
777 struct symlist *tmp_list;
778
5fe11841
NC		 779 if (wildcard)
780 {
781 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
782 if (*(tmp_list->name) != '!')
783 {
784 if (!fnmatch (tmp_list->name, name, 0))
785 return TRUE;
786 }
787 else
788 {
789 if (fnmatch (tmp_list->name + 1, name, 0))
790 return TRUE;
791 }
792 }
793 else
794 {
795 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
796 if (strcmp (name, tmp_list->name) == 0)
797 return TRUE;
798 }
594ef5db 799
b34976b6 800 return FALSE;
252b5132
RH		 801}
802
30288845
AM		 803/* Return a pointer to the symbol used as a signature for GROUP. */
804
805static asymbol *
806group_signature (asection *group)
807{
808 bfd *abfd = group->owner;
809 Elf_Internal_Shdr *ghdr;
810
811 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
812 return NULL;
813
814 ghdr = &elf_section_data (group)->this_hdr;
815 if (ghdr->sh_link < elf_numsections (abfd))
816 {
817 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
818 Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
819
820 if (symhdr->sh_type == SHT_SYMTAB
821 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
748fc5e9 822 return isympp[ghdr->sh_info - 1];
30288845
AM		 823 }
824 return NULL;
825}
826
252b5132
RH		 827/* See if a section is being removed. */
828
b34976b6 829static bfd_boolean
84e2f313 830is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
252b5132 831{
2593f09a
NC		 832 if (sections_removed || sections_copied)
833 {
834 struct section_list *p;
835
836 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE);
837
838 if (sections_removed && p != NULL && p->remove)
839 return TRUE;
840 if (sections_copied && (p == NULL || ! p->copy))
841 return TRUE;
842 }
252b5132 843
2593f09a
NC		 844 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
845 {
846 if (strip_symbols == STRIP_DEBUG
252b5132
RH		 847 || strip_symbols == STRIP_UNNEEDED
848 || strip_symbols == STRIP_ALL
849 || discard_locals == LOCALS_ALL
2593f09a
NC		 850 || convert_debugging)
851 return TRUE;
ed1653a7
NC		 852
853 if (strip_symbols == STRIP_NONDEBUG)
854 return FALSE;
2593f09a 855 }
f91ea849 856
30288845
AM		 857 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
858 {
859 asymbol *gsym;
860 const char *gname;
861
862 /* PR binutils/3166
863 Group sections look like debugging sections but they are not.
864 (They have a non-zero size but they are not ALLOCated). */
865 if (strip_symbols == STRIP_NONDEBUG)
866 return TRUE;
867
868 /* PR binutils/3181
869 If we are going to strip the group signature symbol, then
870 strip the group section too. */
871 gsym = group_signature (sec);
872 if (gsym != NULL)
873 gname = gsym->name;
874 else
875 gname = sec->name;
876 if ((strip_symbols == STRIP_ALL
877 && !is_specified_symbol (gname, keep_specific_list))
878 || is_specified_symbol (gname, strip_specific_list))
879 return TRUE;
880 }
91bb255c 881
f0312d39 882 return FALSE;
252b5132
RH		 883}
884
d58c2e3a
RS		 885/* Return true if SYM is a hidden symbol. */
886
887static bfd_boolean
888is_hidden_symbol (asymbol *sym)
889{
890 elf_symbol_type *elf_sym;
891
892 elf_sym = elf_symbol_from (sym->the_bfd, sym);
893 if (elf_sym != NULL)
894 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
895 {
896 case STV_HIDDEN:
897 case STV_INTERNAL:
898 return TRUE;
899 }
900 return FALSE;
901}
902
252b5132
RH		 903/* Choose which symbol entries to copy; put the result in OSYMS.
904 We don't copy in place, because that confuses the relocs.
905 Return the number of symbols to print. */
906
907static unsigned int
84e2f313
NC		 908filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
909 asymbol **isyms, long symcount)
252b5132 910{
84e2f313 911 asymbol **from = isyms, **to = osyms;
252b5132 912 long src_count = 0, dst_count = 0;
e205a099 913 int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
252b5132
RH		 914
915 for (; src_count < symcount; src_count++)
916 {
917 asymbol *sym = from[src_count];
918 flagword flags = sym->flags;
d7fb0dd2 919 char *name = (char *) bfd_asymbol_name (sym);
312aaa3c
NC		 920 bfd_boolean keep;
921 bfd_boolean used_in_reloc = FALSE;
b34976b6 922 bfd_boolean undefined;
d7fb0dd2
NC		 923 bfd_boolean rem_leading_char;
924 bfd_boolean add_leading_char;
925
926 undefined = bfd_is_und_section (bfd_get_section (sym));
252b5132 927
57938635
AM		 928 if (redefine_sym_list)
929 {
d7fb0dd2 930 char *old_name, *new_name;
57938635 931
d7fb0dd2
NC		 932 old_name = (char *) bfd_asymbol_name (sym);
933 new_name = (char *) lookup_sym_redefinition (old_name);
66491ebc
AM		 934 bfd_asymbol_name (sym) = new_name;
935 name = new_name;
57938635
AM		 936 }
937
d7fb0dd2
NC		 938 /* Check if we will remove the current leading character. */
939 rem_leading_char =
940 (name[0] == bfd_get_symbol_leading_char (abfd))
941 && (change_leading_char
942 || (remove_leading_char
943 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
944 || undefined
945 || bfd_is_com_section (bfd_get_section (sym)))));
946
947 /* Check if we will add a new leading character. */
948 add_leading_char =
949 change_leading_char
950 && (bfd_get_symbol_leading_char (obfd) != '\0')
951 && (bfd_get_symbol_leading_char (abfd) == '\0'
952 || (name[0] == bfd_get_symbol_leading_char (abfd)));
953
954 /* Short circuit for change_leading_char if we can do it in-place. */
955 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
956 {
957 name[0] = bfd_get_symbol_leading_char (obfd);
958 bfd_asymbol_name (sym) = name;
959 rem_leading_char = FALSE;
960 add_leading_char = FALSE;
961 }
962
963 /* Remove leading char. */
964 if (rem_leading_char)
66491ebc 965 bfd_asymbol_name (sym) = ++name;
d7fb0dd2
NC		 966
967 /* Add new leading char and/or prefix. */
968 if (add_leading_char || prefix_symbols_string)
969 {
970 char *n, *ptr;
971
84e2f313
NC		 972 ptr = n = xmalloc (1 + strlen (prefix_symbols_string)
973 + strlen (name) + 1);
d7fb0dd2
NC		 974 if (add_leading_char)
975 *ptr++ = bfd_get_symbol_leading_char (obfd);
976
977 if (prefix_symbols_string)
978 {
979 strcpy (ptr, prefix_symbols_string);
980 ptr += strlen (prefix_symbols_string);
981 }
982
983 strcpy (ptr, name);
66491ebc
AM		 984 bfd_asymbol_name (sym) = n;
985 name = n;
252b5132
RH		 986 }
987
252b5132 988 if (strip_symbols == STRIP_ALL)
312aaa3c 989 keep = FALSE;
252b5132
RH		 990 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
991 || ((flags & BSF_SECTION_SYM) != 0
992 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
993 & BSF_KEEP) != 0))
312aaa3c
NC		 994 {
995 keep = TRUE;
996 used_in_reloc = TRUE;
997 }
0af11b59 998 else if (relocatable /* Relocatable file. */
d8121479 999 && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
312aaa3c 1000 keep = TRUE;
16b2b71c
NC		 1001 else if (bfd_decode_symclass (sym) == 'I')
1002 /* Global symbols in $idata sections need to be retained
b34976b6 1003 even if relocatable is FALSE. External users of the
16b2b71c
NC		 1004 library containing the $idata section may reference these
1005 symbols. */
312aaa3c 1006 keep = TRUE;
252b5132
RH		 1007 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1008 || (flags & BSF_WEAK) != 0
24e01a36 1009 || undefined
252b5132
RH		 1010 || bfd_is_com_section (bfd_get_section (sym)))
1011 keep = strip_symbols != STRIP_UNNEEDED;
1012 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1013 keep = (strip_symbols != STRIP_DEBUG
1014 && strip_symbols != STRIP_UNNEEDED
1015 && ! convert_debugging);
082b7297 1016 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
af3bdff7
NC		 1017 /* COMDAT sections store special information in local
1018 symbols, so we cannot risk stripping any of them. */
312aaa3c 1019 keep = TRUE;
252b5132
RH		 1020 else /* Local symbol. */
1021 keep = (strip_symbols != STRIP_UNNEEDED
1022 && (discard_locals != LOCALS_ALL
1023 && (discard_locals != LOCALS_START_L
1024 || ! bfd_is_local_label (abfd, sym))));
1025
1026 if (keep && is_specified_symbol (name, strip_specific_list))
312aaa3c
NC		 1027 {
1028 /* There are multiple ways to set 'keep' above, but if it
1029 was the relocatable symbol case, then that's an error. */
1030 if (used_in_reloc)
1031 {
1032 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1033 status = 1;
1034 }
1035 else
1036 keep = FALSE;
1037 }
1038
bcf32829
JB		 1039 if (keep
1040 && !(flags & BSF_KEEP)
1041 && is_specified_symbol (name, strip_unneeded_list))
312aaa3c
NC		 1042 keep = FALSE;
1043
1637cd90
JB		 1044 if (!keep
1045 && ((keep_file_symbols && (flags & BSF_FILE))
1046 || is_specified_symbol (name, keep_specific_list)))
312aaa3c
NC		 1047 keep = TRUE;
1048
252b5132 1049 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
312aaa3c 1050 keep = FALSE;
e0c60db2 1051
7b4a0685 1052 if (keep)
252b5132 1053 {
7b4a0685
NC		 1054 if ((flags & BSF_GLOBAL) != 0
1055 && (weaken || is_specified_symbol (name, weaken_specific_list)))
1056 {
1057 sym->flags &= ~ BSF_GLOBAL;
1058 sym->flags |= BSF_WEAK;
1059 }
252b5132 1060
7b4a0685
NC		 1061 if (!undefined
1062 && (flags & (BSF_GLOBAL | BSF_WEAK))
1063 && (is_specified_symbol (name, localize_specific_list)
1064 || (keepglobal_specific_list != NULL
d58c2e3a
RS		 1065 && ! is_specified_symbol (name, keepglobal_specific_list))
1066 || (localize_hidden && is_hidden_symbol (sym))))
7b4a0685
NC		 1067 {
1068 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1069 sym->flags |= BSF_LOCAL;
1070 }
1071
1072 if (!undefined
c1c0eb9e 1073 && (flags & BSF_LOCAL)
7b4a0685
NC		 1074 && is_specified_symbol (name, globalize_specific_list))
1075 {
1076 sym->flags &= ~ BSF_LOCAL;
1077 sym->flags |= BSF_GLOBAL;
1078 }
1079
1080 to[dst_count++] = sym;
1081 }
252b5132
RH		 1082 }
1083
1084 to[dst_count] = NULL;
1085
1086 return dst_count;
1087}
1088
594ef5db
NC		 1089/* Find the redefined name of symbol SOURCE. */
1090
57938635 1091static const char *
84e2f313 1092lookup_sym_redefinition (const char *source)
57938635 1093{
57938635
AM		 1094 struct redefine_node *list;
1095
57938635 1096 for (list = redefine_sym_list; list != NULL; list = list->next)
594ef5db
NC		 1097 if (strcmp (source, list->source) == 0)
1098 return list->target;
1099
1100 return source;
57938635
AM		 1101}
1102
594ef5db 1103/* Add a node to a symbol redefine list. */
57938635
AM		 1104
1105static void
84e2f313 1106redefine_list_append (const char *cause, const char *source, const char *target)
57938635
AM		 1107{
1108 struct redefine_node **p;
1109 struct redefine_node *list;
1110 struct redefine_node *new_node;
1111
1112 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1113 {
1114 if (strcmp (source, list->source) == 0)
594ef5db 1115 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
92991082 1116 cause, source);
57938635
AM		 1117
1118 if (strcmp (target, list->target) == 0)
594ef5db 1119 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
92991082 1120 cause, target);
57938635
AM		 1121 }
1122
d3ba0551 1123 new_node = xmalloc (sizeof (struct redefine_node));
57938635
AM		 1124
1125 new_node->source = strdup (source);
1126 new_node->target = strdup (target);
1127 new_node->next = NULL;
1128
1129 *p = new_node;
1130}
1131
92991082
JT		 1132/* Handle the --redefine-syms option. Read lines containing "old new"
1133 from the file, and add them to the symbol redefine list. */
1134
2593f09a 1135static void
84e2f313 1136add_redefine_syms_file (const char *filename)
92991082
JT		 1137{
1138 FILE *file;
1139 char *buf;
84e2f313
NC		 1140 size_t bufsize;
1141 size_t len;
1142 size_t outsym_off;
92991082
JT		 1143 int c, lineno;
1144
1145 file = fopen (filename, "r");
d3ba0551 1146 if (file == NULL)
92991082
JT		 1147 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1148 filename, strerror (errno));
1149
1150 bufsize = 100;
d3ba0551 1151 buf = xmalloc (bufsize);
92991082
JT		 1152
1153 lineno = 1;
1154 c = getc (file);
1155 len = 0;
1156 outsym_off = 0;
1157 while (c != EOF)
1158 {
1159 /* Collect the input symbol name. */
1160 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1161 {
1162 if (c == '#')
1163 goto comment;
1164 buf[len++] = c;
1165 if (len >= bufsize)
1166 {
1167 bufsize *= 2;
1168 buf = xrealloc (buf, bufsize);
1169 }
1170 c = getc (file);
1171 }
1172 buf[len++] = '\0';
1173 if (c == EOF)
1174 break;
1175
1176 /* Eat white space between the symbol names. */
1177 while (IS_WHITESPACE (c))
1178 c = getc (file);
1179 if (c == '#' || IS_LINE_TERMINATOR (c))
1180 goto comment;
1181 if (c == EOF)
1182 break;
1183
1184 /* Collect the output symbol name. */
1185 outsym_off = len;
1186 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1187 {
1188 if (c == '#')
1189 goto comment;
1190 buf[len++] = c;
1191 if (len >= bufsize)
1192 {
1193 bufsize *= 2;
1194 buf = xrealloc (buf, bufsize);
1195 }
1196 c = getc (file);
1197 }
1198 buf[len++] = '\0';
1199 if (c == EOF)
1200 break;
1201
1202 /* Eat white space at end of line. */
1203 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1204 c = getc (file);
1205 if (c == '#')
1206 goto comment;
1207 /* Handle \r\n. */
1208 if ((c == '\r' && (c = getc (file)) == '\n')
1209 || c == '\n' || c == EOF)
1210 {
1211 end_of_line:
1212 /* Append the redefinition to the list. */
1213 if (buf[0] != '\0')
1214 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1215
c1c0eb9e 1216 lineno++;
92991082
JT		 1217 len = 0;
1218 outsym_off = 0;
1219 if (c == EOF)
1220 break;
1221 c = getc (file);
1222 continue;
1223 }
1224 else
d412a550 1225 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
92991082
JT		 1226 comment:
1227 if (len != 0 && (outsym_off == 0 || outsym_off == len))
d412a550 1228 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
92991082
JT		 1229 buf[len++] = '\0';
1230
1231 /* Eat the rest of the line and finish it. */
1232 while (c != '\n' && c != EOF)
1233 c = getc (file);
1234 goto end_of_line;
1235 }
1236
1237 if (len != 0)
d412a550 1238 fatal (_("%s:%d: premature end of file"), filename, lineno);
92991082
JT		 1239
1240 free (buf);
1241}
1242
77f762d6
L		 1243/* Copy unkown object file IBFD onto OBFD.
1244 Returns TRUE upon success, FALSE otherwise. */
1245
1246static bfd_boolean
1247copy_unknown_object (bfd *ibfd, bfd *obfd)
1248{
1249 char *cbuf;
1250 int tocopy;
1251 long ncopied;
1252 long size;
1253 struct stat buf;
1254
1255 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1256 {
1257 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1258 return FALSE;
1259 }
1260
1261 size = buf.st_size;
1262 if (size < 0)
1263 {
1264 non_fatal (_("stat returns negative size for `%s'"),
1265 bfd_get_archive_filename (ibfd));
1266 return FALSE;
1267 }
1268
1269 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1270 {
1271 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1272 return FALSE;
1273 }
1274
1275 if (verbose)
1276 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1277 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1278
1279 cbuf = xmalloc (BUFSIZE);
1280 ncopied = 0;
1281 while (ncopied < size)
1282 {
1283 tocopy = size - ncopied;
1284 if (tocopy > BUFSIZE)
1285 tocopy = BUFSIZE;
1286
1287 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1288 != (bfd_size_type) tocopy)
1289 {
1290 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1291 free (cbuf);
1292 return FALSE;
1293 }
1294
1295 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1296 != (bfd_size_type) tocopy)
1297 {
1298 bfd_nonfatal (bfd_get_filename (obfd));
1299 free (cbuf);
1300 return FALSE;
1301 }
1302
1303 ncopied += tocopy;
1304 }
1305
1306 chmod (bfd_get_filename (obfd), buf.st_mode);
1307 free (cbuf);
1308 return TRUE;
1309}
1310
950d48e7 1311/* Copy object file IBFD onto OBFD.
5b8c74e6 1312 Returns TRUE upon success, FALSE otherwise. */
252b5132 1313
950d48e7 1314static bfd_boolean
84e2f313 1315copy_object (bfd *ibfd, bfd *obfd)
252b5132
RH		 1316{
1317 bfd_vma start;
1318 long symcount;
1319 asection **osections = NULL;
84e2f313 1320 asection *gnu_debuglink_section = NULL;
252b5132
RH		 1321 bfd_size_type *gaps = NULL;
1322 bfd_size_type max_gap = 0;
1323 long symsize;
84e2f313 1324 void *dhandle;
66491ebc
AM		 1325 enum bfd_architecture iarch;
1326 unsigned int imach;
252b5132 1327
23719f39
NC		 1328 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1329 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1330 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
950d48e7 1331 fatal (_("Unable to change endianness of input file(s)"));
252b5132
RH		 1332
1333 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
950d48e7
NC		 1334 {
1335 bfd_nonfatal (bfd_get_filename (obfd));
1336 return FALSE;
1337 }
252b5132
RH		 1338
1339 if (verbose)
77f762d6
L		 1340 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1341 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
252b5132
RH		 1342 bfd_get_filename (obfd), bfd_get_target (obfd));
1343
d3e52d40
RS		 1344 if (extract_symbol)
1345 start = 0;
252b5132 1346 else
d3e52d40
RS		 1347 {
1348 if (set_start_set)
1349 start = set_start;
1350 else
1351 start = bfd_get_start_address (ibfd);
1352 start += change_start;
1353 }
252b5132 1354
0af11b59
KH		 1355 /* Neither the start address nor the flags
1356 need to be set for a core file. */
4dd67f29
MS		 1357 if (bfd_get_format (obfd) != bfd_core)
1358 {
4087920c
MR		 1359 flagword flags;
1360
1361 flags = bfd_get_file_flags (ibfd);
1362 flags |= bfd_flags_to_set;
1363 flags &= ~bfd_flags_to_clear;
1364 flags &= bfd_applicable_file_flags (obfd);
1365
4dd67f29 1366 if (!bfd_set_start_address (obfd, start)
4087920c 1367 || !bfd_set_file_flags (obfd, flags))
950d48e7 1368 {
77f762d6 1369 bfd_nonfatal (bfd_get_archive_filename (ibfd));
950d48e7
NC		 1370 return FALSE;
1371 }
4dd67f29 1372 }
252b5132 1373
594ef5db 1374 /* Copy architecture of input file to output file. */
66491ebc
AM		 1375 iarch = bfd_get_arch (ibfd);
1376 imach = bfd_get_mach (ibfd);
1377 if (!bfd_set_arch_mach (obfd, iarch, imach)
212a3c4d
L		 1378 && (ibfd->target_defaulted
1379 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
f57a841a
NC		 1380 {
1381 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
77f762d6
L		 1382 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1383 bfd_get_archive_filename (ibfd));
f57a841a 1384 else
77f762d6
L		 1385 non_fatal (_("Warning: Output file cannot represent architecture `%s'"),
1386 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1387 bfd_get_mach (ibfd)));
1388 return FALSE;
f57a841a 1389 }
57938635 1390
252b5132 1391 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
950d48e7 1392 {
77f762d6 1393 bfd_nonfatal (bfd_get_archive_filename (ibfd));
950d48e7
NC		 1394 return FALSE;
1395 }
252b5132
RH		 1396
1397 if (isympp)
62d732f5 1398 free (isympp);
57938635 1399
252b5132 1400 if (osympp != isympp)
62d732f5
AM		 1401 free (osympp);
1402
1403 isympp = NULL;
1404 osympp = NULL;
252b5132 1405
c39ada54
AM		 1406 symsize = bfd_get_symtab_upper_bound (ibfd);
1407 if (symsize < 0)
1408 {
1409 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1410 return FALSE;
1411 }
1412
1413 osympp = isympp = xmalloc (symsize);
1414 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1415 if (symcount < 0)
1416 {
1417 bfd_nonfatal (bfd_get_filename (ibfd));
1418 return FALSE;
1419 }
1420
252b5132
RH		 1421 /* BFD mandates that all output sections be created and sizes set before
1422 any output is done. Thus, we traverse all sections multiple times. */
d3ba0551 1423 bfd_map_over_sections (ibfd, setup_section, obfd);
252b5132 1424
42bb2e33 1425 setup_bfd_headers (ibfd, obfd);
80fccad2 1426
252b5132
RH		 1427 if (add_sections != NULL)
1428 {
1429 struct section_add *padd;
1430 struct section_list *pset;
1431
1432 for (padd = add_sections; padd != NULL; padd = padd->next)
1433 {
2593f09a
NC		 1434 flagword flags;
1435
551b43fd
AM		 1436 pset = find_section_list (padd->name, FALSE);
1437 if (pset != NULL)
1438 pset->used = TRUE;
1439
1440 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1441 if (pset != NULL && pset->set_flags)
1442 flags = pset->flags | SEC_HAS_CONTENTS;
1443
c8782eee
NC		 1444 /* bfd_make_section_with_flags() does not return very helpful
1445 error codes, so check for the most likely user error first. */
1446 if (bfd_get_section_by_name (obfd, padd->name))
252b5132 1447 {
c8782eee 1448 non_fatal (_("can't add section '%s' - it already exists!"), padd->name);
950d48e7 1449 return FALSE;
252b5132 1450 }
c8782eee
NC		 1451 else
1452 {
1453 padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
1454 if (padd->section == NULL)
1455 {
1456 non_fatal (_("can't create section `%s': %s"),
1457 padd->name, bfd_errmsg (bfd_get_error ()));
1458 return FALSE;
1459 }
1460 }
252b5132 1461
2593f09a 1462 if (! bfd_set_section_size (obfd, padd->section, padd->size))
950d48e7
NC		 1463 {
1464 bfd_nonfatal (bfd_get_filename (obfd));
1465 return FALSE;
1466 }
252b5132 1467
2593f09a
NC		 1468 if (pset != NULL)
1469 {
1470 if (pset->change_vma != CHANGE_IGNORE)
84e2f313
NC		 1471 if (! bfd_set_section_vma (obfd, padd->section,
1472 pset->vma_val))
950d48e7
NC		 1473 {
1474 bfd_nonfatal (bfd_get_filename (obfd));
1475 return FALSE;
1476 }
57938635 1477
2593f09a
NC		 1478 if (pset->change_lma != CHANGE_IGNORE)
1479 {
1480 padd->section->lma = pset->lma_val;
950d48e7 1481
2593f09a
NC		 1482 if (! bfd_set_section_alignment
1483 (obfd, padd->section,
1484 bfd_section_alignment (obfd, padd->section)))
950d48e7
NC		 1485 {
1486 bfd_nonfatal (bfd_get_filename (obfd));
1487 return FALSE;
1488 }
252b5132
RH		 1489 }
1490 }
1491 }
1492 }
1493
2593f09a
NC		 1494 if (gnu_debuglink_filename != NULL)
1495 {
84e2f313
NC		 1496 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1497 (obfd, gnu_debuglink_filename);
e7c81c25
NC		 1498
1499 if (gnu_debuglink_section == NULL)
950d48e7
NC		 1500 {
1501 bfd_nonfatal (gnu_debuglink_filename);
1502 return FALSE;
1503 }
6e2c86ac
NC		 1504
1505 /* Special processing for PE format files. We
1506 have no way to distinguish PE from COFF here. */
1507 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1508 {
1509 bfd_vma debuglink_vma;
1510 asection * highest_section;
1511 asection * sec;
1512
1513 /* The PE spec requires that all sections be adjacent and sorted
1514 in ascending order of VMA. It also specifies that debug
1515 sections should be last. This is despite the fact that debug
1516 sections are not loaded into memory and so in theory have no
1517 use for a VMA.
1518
1519 This means that the debuglink section must be given a non-zero
1520 VMA which makes it contiguous with other debug sections. So
1521 walk the current section list, find the section with the
1522 highest VMA and start the debuglink section after that one. */
1523 for (sec = obfd->sections, highest_section = NULL;
1524 sec != NULL;
1525 sec = sec->next)
1526 if (sec->vma > 0
1527 && (highest_section == NULL
1528 || sec->vma > highest_section->vma))
1529 highest_section = sec;
1530
1531 if (highest_section)
1532 debuglink_vma = BFD_ALIGN (highest_section->vma
1533 + highest_section->size,
1534 /* FIXME: We ought to be using
1535 COFF_PAGE_SIZE here or maybe
1536 bfd_get_section_alignment() (if it
1537 was set) but since this is for PE
1538 and we know the required alignment
1539 it is easier just to hard code it. */
1540 0x1000);
1541 else
1542 /* Umm, not sure what to do in this case. */
1543 debuglink_vma = 0x1000;
1544
1545 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1546 }
950d48e7
NC		 1547 }
1548
1aa9ef63
L		 1549 if (bfd_count_sections (obfd) != 0
1550 && (gap_fill_set || pad_to_set))
252b5132
RH		 1551 {
1552 asection **set;
1553 unsigned int c, i;
1554
1555 /* We must fill in gaps between the sections and/or we must pad
1556 the last section to a specified address. We do this by
1557 grabbing a list of the sections, sorting them by VMA, and
1558 increasing the section sizes as required to fill the gaps.
1559 We write out the gap contents below. */
1560
1561 c = bfd_count_sections (obfd);
d3ba0551 1562 osections = xmalloc (c * sizeof (asection *));
252b5132 1563 set = osections;
d3ba0551 1564 bfd_map_over_sections (obfd, get_sections, &set);
252b5132
RH		 1565
1566 qsort (osections, c, sizeof (asection *), compare_section_lma);
1567
d3ba0551 1568 gaps = xmalloc (c * sizeof (bfd_size_type));
252b5132
RH		 1569 memset (gaps, 0, c * sizeof (bfd_size_type));
1570
1571 if (gap_fill_set)
1572 {
1573 for (i = 0; i < c - 1; i++)
1574 {
1575 flagword flags;
1576 bfd_size_type size;
1577 bfd_vma gap_start, gap_stop;
1578
1579 flags = bfd_get_section_flags (obfd, osections[i]);
1580 if ((flags & SEC_HAS_CONTENTS) == 0
1581 || (flags & SEC_LOAD) == 0)
1582 continue;
1583
1584 size = bfd_section_size (obfd, osections[i]);
1585 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1586 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1587 if (gap_start < gap_stop)
1588 {
1589 if (! bfd_set_section_size (obfd, osections[i],
1590 size + (gap_stop - gap_start)))
1591 {
1592 non_fatal (_("Can't fill gap after %s: %s"),
0af11b59
KH		 1593 bfd_get_section_name (obfd, osections[i]),
1594 bfd_errmsg (bfd_get_error ()));
252b5132
RH		 1595 status = 1;
1596 break;
1597 }
1598 gaps[i] = gap_stop - gap_start;
1599 if (max_gap < gap_stop - gap_start)
1600 max_gap = gap_stop - gap_start;
1601 }
1602 }
1603 }
1604
1605 if (pad_to_set)
1606 {
1607 bfd_vma lma;
1608 bfd_size_type size;
1609
1610 lma = bfd_section_lma (obfd, osections[c - 1]);
1611 size = bfd_section_size (obfd, osections[c - 1]);
1612 if (lma + size < pad_to)
1613 {
1614 if (! bfd_set_section_size (obfd, osections[c - 1],
1615 pad_to - lma))
1616 {
1617 non_fatal (_("Can't add padding to %s: %s"),
0af11b59
KH		 1618 bfd_get_section_name (obfd, osections[c - 1]),
1619 bfd_errmsg (bfd_get_error ()));
252b5132
RH		 1620 status = 1;
1621 }
1622 else
1623 {
1624 gaps[c - 1] = pad_to - (lma + size);
1625 if (max_gap < pad_to - (lma + size))
1626 max_gap = pad_to - (lma + size);
1627 }
1628 }
1629 }
1630 }
1631
594ef5db
NC		 1632 /* Symbol filtering must happen after the output sections
1633 have been created, but before their contents are set. */
252b5132 1634 dhandle = NULL;
252b5132
RH		 1635 if (convert_debugging)
1636 dhandle = read_debugging_info (ibfd, isympp, symcount);
57938635
AM		 1637
1638 if (strip_symbols == STRIP_DEBUG
252b5132
RH		 1639 || strip_symbols == STRIP_ALL
1640 || strip_symbols == STRIP_UNNEEDED
ed1653a7 1641 || strip_symbols == STRIP_NONDEBUG
252b5132 1642 || discard_locals != LOCALS_UNDEF
d58c2e3a 1643 || localize_hidden
252b5132
RH		 1644 || strip_specific_list != NULL
1645 || keep_specific_list != NULL
1646 || localize_specific_list != NULL
7b4a0685 1647 || globalize_specific_list != NULL
16b2b71c 1648 || keepglobal_specific_list != NULL
252b5132 1649 || weaken_specific_list != NULL
d7fb0dd2 1650 || prefix_symbols_string
252b5132 1651 || sections_removed
f91ea849 1652 || sections_copied
252b5132
RH		 1653 || convert_debugging
1654 || change_leading_char
1655 || remove_leading_char
57938635 1656 || redefine_sym_list
252b5132
RH		 1657 || weaken)
1658 {
1659 /* Mark symbols used in output relocations so that they
1660 are kept, even if they are local labels or static symbols.
57938635 1661
252b5132
RH		 1662 Note we iterate over the input sections examining their
1663 relocations since the relocations for the output sections
1664 haven't been set yet. mark_symbols_used_in_relocations will
1665 ignore input sections which have no corresponding output
1666 section. */
1667 if (strip_symbols != STRIP_ALL)
1668 bfd_map_over_sections (ibfd,
1669 mark_symbols_used_in_relocations,
d3ba0551
AM		 1670 isympp);
1671 osympp = xmalloc ((symcount + 1) * sizeof (asymbol *));
252b5132
RH		 1672 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1673 }
1674
1675 if (convert_debugging && dhandle != NULL)
1676 {
1677 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1678 {
1679 status = 1;
950d48e7 1680 return FALSE;
252b5132
RH		 1681 }
1682 }
1683
1684 bfd_set_symtab (obfd, osympp, symcount);
1685
1686 /* This has to happen after the symbol table has been set. */
d3ba0551 1687 bfd_map_over_sections (ibfd, copy_section, obfd);
252b5132
RH		 1688
1689 if (add_sections != NULL)
1690 {
1691 struct section_add *padd;
1692
1693 for (padd = add_sections; padd != NULL; padd = padd->next)
1694 {
d3ba0551
AM		 1695 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1696 0, padd->size))
950d48e7
NC		 1697 {
1698 bfd_nonfatal (bfd_get_filename (obfd));
1699 return FALSE;
1700 }
252b5132
RH		 1701 }
1702 }
1703
e7c81c25
NC		 1704 if (gnu_debuglink_filename != NULL)
1705 {
1706 if (! bfd_fill_in_gnu_debuglink_section
1707 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
950d48e7
NC		 1708 {
1709 bfd_nonfatal (gnu_debuglink_filename);
1710 return FALSE;
1711 }
e7c81c25
NC		 1712 }
1713
252b5132
RH		 1714 if (gap_fill_set || pad_to_set)
1715 {
1716 bfd_byte *buf;
1717 int c, i;
1718
1719 /* Fill in the gaps. */
252b5132
RH		 1720 if (max_gap > 8192)
1721 max_gap = 8192;
d3ba0551
AM		 1722 buf = xmalloc (max_gap);
1723 memset (buf, gap_fill, max_gap);
252b5132
RH		 1724
1725 c = bfd_count_sections (obfd);
1726 for (i = 0; i < c; i++)
1727 {
1728 if (gaps[i] != 0)
1729 {
1730 bfd_size_type left;
1731 file_ptr off;
1732
1733 left = gaps[i];
1734 off = bfd_section_size (obfd, osections[i]) - left;
594ef5db 1735
252b5132
RH		 1736 while (left > 0)
1737 {
1738 bfd_size_type now;
1739
1740 if (left > 8192)
1741 now = 8192;
1742 else
1743 now = left;
1744
1745 if (! bfd_set_section_contents (obfd, osections[i], buf,
1746 off, now))
950d48e7
NC		 1747 {
1748 bfd_nonfatal (bfd_get_filename (obfd));
1749 return FALSE;
1750 }
252b5132
RH		 1751
1752 left -= now;
1753 off += now;
1754 }
1755 }
1756 }
1757 }
1758
d3e52d40
RS		 1759 /* Do not copy backend data if --extract-symbol is passed; anything
1760 that needs to look at the section contents will fail. */
1761 if (extract_symbol)
1762 return TRUE;
1763
252b5132
RH		 1764 /* Allow the BFD backend to copy any private data it understands
1765 from the input BFD to the output BFD. This is done last to
1766 permit the routine to look at the filtered symbol table, which is
1767 important for the ECOFF code at least. */
42bb2e33 1768 if (! bfd_copy_private_bfd_data (ibfd, obfd))
252b5132
RH		 1769 {
1770 non_fatal (_("%s: error copying private BFD data: %s"),
1771 bfd_get_filename (obfd),
1772 bfd_errmsg (bfd_get_error ()));
950d48e7 1773 return FALSE;
252b5132 1774 }
1ae8b3d2
AO		 1775
1776 /* Switch to the alternate machine code. We have to do this at the
1777 very end, because we only initialize the header when we create
1778 the first section. */
f9d4ad2a
NC		 1779 if (use_alt_mach_code != 0)
1780 {
1781 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
1782 {
1783 non_fatal (_("this target does not support %lu alternative machine codes"),
1784 use_alt_mach_code);
1785 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
1786 {
1787 non_fatal (_("treating that number as an absolute e_machine value instead"));
1788 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
1789 }
1790 else
1791 non_fatal (_("ignoring the alternative value"));
1792 }
1793 }
950d48e7
NC		 1794
1795 return TRUE;
252b5132
RH		 1796}
1797
1798/* Read each archive element in turn from IBFD, copy the
ee873e00
NC		 1799 contents to temp file, and keep the temp file handle.
1800 If 'force_output_target' is TRUE then make sure that
1801 all elements in the new archive are of the type
1802 'output_target'. */
252b5132
RH		 1803
1804static void
ee873e00
NC		 1805copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
1806 bfd_boolean force_output_target)
252b5132
RH		 1807{
1808 struct name_list
1809 {
1810 struct name_list *next;
4c168fa3 1811 const char *name;
252b5132
RH		 1812 bfd *obfd;
1813 } *list, *l;
1814 bfd **ptr = &obfd->archive_head;
1815 bfd *this_element;
f9c026a8 1816 char * dir;
252b5132
RH		 1817
1818 /* Make a temp directory to hold the contents. */
f9c026a8 1819 dir = make_tempdir (bfd_get_filename (obfd));
f9c026a8
NC		 1820 if (dir == NULL)
1821 fatal (_("cannot create tempdir for archive copying (error: %s)"),
1822 strerror (errno));
84e2f313 1823
252b5132
RH		 1824 obfd->has_armap = ibfd->has_armap;
1825
1826 list = NULL;
1827
1828 this_element = bfd_openr_next_archived_file (ibfd, NULL);
594ef5db 1829
b667df2e
AM		 1830 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1831 RETURN_NONFATAL (bfd_get_filename (obfd));
1832
d3ba0551 1833 while (!status && this_element != NULL)
252b5132 1834 {
4c168fa3
AM		 1835 char *output_name;
1836 bfd *output_bfd;
252b5132 1837 bfd *last_element;
8066d1a2
AS		 1838 struct stat buf;
1839 int stat_status = 0;
950d48e7 1840 bfd_boolean delete = TRUE;
8066d1a2 1841
4c168fa3
AM		 1842 /* Create an output file for this member. */
1843 output_name = concat (dir, "/",
1844 bfd_get_filename (this_element), (char *) 0);
1845
1846 /* If the file already exists, make another temp dir. */
1847 if (stat (output_name, &buf) >= 0)
1848 {
f9c026a8
NC		 1849 output_name = make_tempdir (output_name);
1850 if (output_name == NULL)
485be063
AM		 1851 fatal (_("cannot create tempdir for archive copying (error: %s)"),
1852 strerror (errno));
84e2f313 1853
d3ba0551 1854 l = xmalloc (sizeof (struct name_list));
4c168fa3
AM		 1855 l->name = output_name;
1856 l->next = list;
1857 l->obfd = NULL;
1858 list = l;
1859 output_name = concat (output_name, "/",
1860 bfd_get_filename (this_element), (char *) 0);
1861 }
1862
8066d1a2
AS		 1863 if (preserve_dates)
1864 {
1865 stat_status = bfd_stat_arch_elt (this_element, &buf);
594ef5db 1866
8066d1a2
AS		 1867 if (stat_status != 0)
1868 non_fatal (_("internal stat error on %s"),
1869 bfd_get_filename (this_element));
1870 }
252b5132 1871
d3ba0551 1872 l = xmalloc (sizeof (struct name_list));
252b5132
RH		 1873 l->name = output_name;
1874 l->next = list;
bee59fd2 1875 l->obfd = NULL;
252b5132
RH		 1876 list = l;
1877
b34976b6 1878 if (bfd_check_format (this_element, bfd_object))
77f762d6 1879 {
ee873e00
NC		 1880 /* PR binutils/3110: Cope with archives
1881 containing multiple target types. */
1882 if (force_output_target)
1883 output_bfd = bfd_openw (output_name, output_target);
1884 else
1885 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
1886
1887 if (output_bfd == NULL)
1888 RETURN_NONFATAL (output_name);
1889
77f762d6 1890 delete = ! copy_object (this_element, output_bfd);
252b5132 1891
77f762d6
L		 1892 if (! delete
1893 || bfd_get_arch (this_element) != bfd_arch_unknown)
1894 {
1895 if (!bfd_close (output_bfd))
1896 {
1897 bfd_nonfatal (bfd_get_filename (output_bfd));
1898 /* Error in new object file. Don't change archive. */
1899 status = 1;
1900 }
1901 }
1902 else
1903 goto copy_unknown_element;
1904 }
1905 else
252b5132 1906 {
77f762d6
L		 1907 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1908 bfd_get_archive_filename (this_element));
1909
ee873e00 1910 output_bfd = bfd_openw (output_name, output_target);
77f762d6
L		 1911copy_unknown_element:
1912 delete = !copy_unknown_object (this_element, output_bfd);
1913 if (!bfd_close_all_done (output_bfd))
1914 {
1915 bfd_nonfatal (bfd_get_filename (output_bfd));
1916 /* Error in new object file. Don't change archive. */
1917 status = 1;
1918 }
252b5132
RH		 1919 }
1920
950d48e7
NC		 1921 if (delete)
1922 {
1923 unlink (output_name);
1924 status = 1;
1925 }
1926 else
1927 {
1928 if (preserve_dates && stat_status == 0)
1929 set_times (output_name, &buf);
8066d1a2 1930
950d48e7
NC		 1931 /* Open the newly output file and attach to our list. */
1932 output_bfd = bfd_openr (output_name, output_target);
252b5132 1933
950d48e7 1934 l->obfd = output_bfd;
252b5132 1935
950d48e7 1936 *ptr = output_bfd;
cc481421 1937 ptr = &output_bfd->archive_next;
252b5132 1938
950d48e7 1939 last_element = this_element;
252b5132 1940
950d48e7 1941 this_element = bfd_openr_next_archived_file (ibfd, last_element);
252b5132 1942
950d48e7
NC		 1943 bfd_close (last_element);
1944 }
252b5132 1945 }
d3ba0551 1946 *ptr = NULL;
252b5132
RH		 1947
1948 if (!bfd_close (obfd))
1949 RETURN_NONFATAL (bfd_get_filename (obfd));
1950
1951 if (!bfd_close (ibfd))
1952 RETURN_NONFATAL (bfd_get_filename (ibfd));
1953
1954 /* Delete all the files that we opened. */
1955 for (l = list; l != NULL; l = l->next)
1956 {
4c168fa3
AM		 1957 if (l->obfd == NULL)
1958 rmdir (l->name);
1959 else
1960 {
1961 bfd_close (l->obfd);
1962 unlink (l->name);
1963 }
252b5132
RH		 1964 }
1965 rmdir (dir);
1966}
1967
1968/* The top-level control. */
1969
1970static void
84e2f313
NC		 1971copy_file (const char *input_filename, const char *output_filename,
1972 const char *input_target, const char *output_target)
252b5132
RH		 1973{
1974 bfd *ibfd;
49c12576
AM		 1975 char **obj_matching;
1976 char **core_matching;
252b5132 1977
f24ddbdd
NC		 1978 if (get_file_size (input_filename) < 1)
1979 {
1980 status = 1;
1981 return;
1982 }
1983
252b5132
RH		 1984 /* To allow us to do "strip *" without dying on the first
1985 non-object file, failures are nonfatal. */
252b5132
RH		 1986 ibfd = bfd_openr (input_filename, input_target);
1987 if (ibfd == NULL)
1988 RETURN_NONFATAL (input_filename);
1989
1990 if (bfd_check_format (ibfd, bfd_archive))
1991 {
ee873e00 1992 bfd_boolean force_output_target;
252b5132
RH		 1993 bfd *obfd;
1994
1995 /* bfd_get_target does not return the correct value until
1996 bfd_check_format succeeds. */
1997 if (output_target == NULL)
ee873e00
NC		 1998 {
1999 output_target = bfd_get_target (ibfd);
2000 force_output_target = FALSE;
2001 }
2002 else
2003 force_output_target = TRUE;
252b5132
RH		 2004
2005 obfd = bfd_openw (output_filename, output_target);
2006 if (obfd == NULL)
2007 RETURN_NONFATAL (output_filename);
2008
ee873e00 2009 copy_archive (ibfd, obfd, output_target, force_output_target);
252b5132 2010 }
49c12576 2011 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
252b5132
RH		 2012 {
2013 bfd *obfd;
49c12576 2014 do_copy:
950d48e7 2015
252b5132
RH		 2016 /* bfd_get_target does not return the correct value until
2017 bfd_check_format succeeds. */
2018 if (output_target == NULL)
2019 output_target = bfd_get_target (ibfd);
2020
2021 obfd = bfd_openw (output_filename, output_target);
2022 if (obfd == NULL)
2023 RETURN_NONFATAL (output_filename);
2024
a580b8e0
JB		 2025 if (! copy_object (ibfd, obfd))
2026 status = 1;
252b5132
RH		 2027
2028 if (!bfd_close (obfd))
2029 RETURN_NONFATAL (output_filename);
2030
2031 if (!bfd_close (ibfd))
2032 RETURN_NONFATAL (input_filename);
950d48e7 2033
252b5132
RH		 2034 }
2035 else
2036 {
49c12576
AM		 2037 bfd_error_type obj_error = bfd_get_error ();
2038 bfd_error_type core_error;
b34976b6 2039
49c12576
AM		 2040 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2041 {
2042 /* This probably can't happen.. */
2043 if (obj_error == bfd_error_file_ambiguously_recognized)
2044 free (obj_matching);
2045 goto do_copy;
2046 }
2047
2048 core_error = bfd_get_error ();
2049 /* Report the object error in preference to the core error. */
2050 if (obj_error != core_error)
2051 bfd_set_error (obj_error);
2052
252b5132 2053 bfd_nonfatal (input_filename);
57938635 2054
49c12576
AM		 2055 if (obj_error == bfd_error_file_ambiguously_recognized)
2056 {
2057 list_matching_formats (obj_matching);
2058 free (obj_matching);
2059 }
2060 if (core_error == bfd_error_file_ambiguously_recognized)
252b5132 2061 {
49c12576
AM		 2062 list_matching_formats (core_matching);
2063 free (core_matching);
252b5132 2064 }
57938635 2065
252b5132
RH		 2066 status = 1;
2067 }
2068}
2069
594ef5db
NC		 2070/* Add a name to the section renaming list. */
2071
2072static void
84e2f313
NC		 2073add_section_rename (const char * old_name, const char * new_name,
2074 flagword flags)
594ef5db
NC		 2075{
2076 section_rename * rename;
2077
2078 /* Check for conflicts first. */
2079 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2080 if (strcmp (rename->old_name, old_name) == 0)
2081 {
2082 /* Silently ignore duplicate definitions. */
2083 if (strcmp (rename->new_name, new_name) == 0
2084 && rename->flags == flags)
2085 return;
0af11b59 2086
594ef5db
NC		 2087 fatal (_("Multiple renames of section %s"), old_name);
2088 }
2089
d3ba0551 2090 rename = xmalloc (sizeof (* rename));
594ef5db
NC		 2091
2092 rename->old_name = old_name;
2093 rename->new_name = new_name;
2094 rename->flags = flags;
2095 rename->next = section_rename_list;
0af11b59 2096
594ef5db
NC		 2097 section_rename_list = rename;
2098}
2099
2100/* Check the section rename list for a new name of the input section
2101 ISECTION. Return the new name if one is found.
2102 Also set RETURNED_FLAGS to the flags to be used for this section. */
2103
2104static const char *
84e2f313
NC		 2105find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2106 flagword * returned_flags)
594ef5db
NC		 2107{
2108 const char * old_name = bfd_section_name (ibfd, isection);
2109 section_rename * rename;
2110
2111 /* Default to using the flags of the input section. */
2112 * returned_flags = bfd_get_section_flags (ibfd, isection);
2113
2114 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2115 if (strcmp (rename->old_name, old_name) == 0)
2116 {
2117 if (rename->flags != (flagword) -1)
2118 * returned_flags = rename->flags;
2119
2120 return rename->new_name;
2121 }
2122
2123 return old_name;
2124}
2125
80fccad2
BW		 2126/* Once each of the sections is copied, we may still need to do some
2127 finalization work for private section headers. Do that here. */
2128
2129static void
2130setup_bfd_headers (bfd *ibfd, bfd *obfd)
2131{
2132 const char *err;
2133
2134 /* Allow the BFD backend to copy any private data it understands
2135 from the input section to the output section. */
2136 if (! bfd_copy_private_header_data (ibfd, obfd))
2137 {
2138 err = _("private header data");
2139 goto loser;
2140 }
2141
2142 /* All went well. */
2143 return;
2144
2145loser:
2146 non_fatal (_("%s: error in %s: %s"),
2147 bfd_get_filename (ibfd),
2148 err, bfd_errmsg (bfd_get_error ()));
2149 status = 1;
2150}
2151
594ef5db
NC		 2152/* Create a section in OBFD with the same
2153 name and attributes as ISECTION in IBFD. */
252b5132
RH		 2154
2155static void
84e2f313 2156setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
252b5132 2157{
d3ba0551 2158 bfd *obfd = obfdarg;
252b5132
RH		 2159 struct section_list *p;
2160 sec_ptr osection;
2161 bfd_size_type size;
2162 bfd_vma vma;
2163 bfd_vma lma;
2164 flagword flags;
1a89cc7d 2165 const char *err;
594ef5db 2166 const char * name;
d7fb0dd2 2167 char *prefix = NULL;
0af11b59 2168
2593f09a 2169 if (is_strip_section (ibfd, isection))
252b5132
RH		 2170 return;
2171
b34976b6 2172 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
252b5132 2173 if (p != NULL)
b34976b6 2174 p->used = TRUE;
252b5132 2175
594ef5db
NC		 2176 /* Get the, possibly new, name of the output section. */
2177 name = find_section_rename (ibfd, isection, & flags);
0af11b59 2178
d7fb0dd2 2179 /* Prefix sections. */
84e2f313
NC		 2180 if ((prefix_alloc_sections_string)
2181 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
d7fb0dd2
NC		 2182 prefix = prefix_alloc_sections_string;
2183 else if (prefix_sections_string)
2184 prefix = prefix_sections_string;
2185
2186 if (prefix)
2187 {
2188 char *n;
2189
2190 n = xmalloc (strlen (prefix) + strlen (name) + 1);
2191 strcpy (n, prefix);
2192 strcat (n, name);
2193 name = n;
2194 }
66491ebc 2195
551b43fd
AM		 2196 if (p != NULL && p->set_flags)
2197 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
42bb2e33
AM		 2198 else if (strip_symbols == STRIP_NONDEBUG
2199 && obfd->xvec->flavour != bfd_target_elf_flavour
2200 && (flags & SEC_ALLOC) != 0)
551b43fd
AM		 2201 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
2202
2203 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
57938635 2204
252b5132
RH		 2205 if (osection == NULL)
2206 {
1a89cc7d 2207 err = _("making");
252b5132
RH		 2208 goto loser;
2209 }
2210
551b43fd
AM		 2211 if (strip_symbols == STRIP_NONDEBUG
2212 && obfd->xvec->flavour == bfd_target_elf_flavour
2213 && (flags & SEC_ALLOC) != 0
c1c0eb9e
RM		 2214 && elf_section_type (osection) != SHT_NOTE
2215 && (ibfd->xvec->flavour != bfd_target_elf_flavour
2216 || elf_section_type (isection) != SHT_NOTE)
551b43fd
AM		 2217 && (p == NULL || !p->set_flags))
2218 elf_section_type (osection) = SHT_NOBITS;
2219
252b5132
RH		 2220 size = bfd_section_size (ibfd, isection);
2221 if (copy_byte >= 0)
2222 size = (size + interleave - 1) / interleave;
d3e52d40
RS		 2223 else if (extract_symbol)
2224 size = 0;
252b5132
RH		 2225 if (! bfd_set_section_size (obfd, osection, size))
2226 {
1a89cc7d 2227 err = _("size");
252b5132
RH		 2228 goto loser;
2229 }
57938635 2230
252b5132
RH		 2231 vma = bfd_section_vma (ibfd, isection);
2232 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2233 vma += p->vma_val;
2234 else if (p != NULL && p->change_vma == CHANGE_SET)
2235 vma = p->vma_val;
2236 else
2237 vma += change_section_address;
57938635 2238
d3e52d40 2239 if (! bfd_set_section_vma (obfd, osection, extract_symbol ? 0 : vma))
252b5132 2240 {
1a89cc7d 2241 err = _("vma");
252b5132
RH		 2242 goto loser;
2243 }
2244
2245 lma = isection->lma;
2246 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2247 {
2248 if (p->change_lma == CHANGE_MODIFY)
2249 lma += p->lma_val;
2250 else if (p->change_lma == CHANGE_SET)
2251 lma = p->lma_val;
2252 else
2253 abort ();
2254 }
2255 else
2256 lma += change_section_address;
57938635 2257
d3e52d40 2258 osection->lma = extract_symbol ? 0 : lma;
252b5132
RH		 2259
2260 /* FIXME: This is probably not enough. If we change the LMA we
2261 may have to recompute the header for the file as well. */
b34976b6
AM		 2262 if (!bfd_set_section_alignment (obfd,
2263 osection,
2264 bfd_section_alignment (ibfd, isection)))
252b5132 2265 {
1a89cc7d 2266 err = _("alignment");
252b5132
RH		 2267 goto loser;
2268 }
2269
bc408b8a
JJ		 2270 /* Copy merge entity size. */
2271 osection->entsize = isection->entsize;
2272
252b5132
RH		 2273 /* This used to be mangle_section; we do here to avoid using
2274 bfd_get_section_by_name since some formats allow multiple
2275 sections with the same name. */
2276 isection->output_section = osection;
d3e52d40
RS		 2277 isection->output_offset = extract_symbol ? vma : 0;
2278
2279 /* Do not copy backend data if --extract-symbol is passed; anything
2280 that needs to look at the section contents will fail. */
2281 if (extract_symbol)
2282 return;
252b5132
RH		 2283
2284 /* Allow the BFD backend to copy any private data it understands
2285 from the input section to the output section. */
42bb2e33 2286 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
252b5132 2287 {
1a89cc7d 2288 err = _("private data");
252b5132
RH		 2289 goto loser;
2290 }
30288845 2291 else if ((isection->flags & SEC_GROUP) != 0)
c39ada54 2292 {
30288845 2293 asymbol *gsym = group_signature (isection);
c39ada54 2294
30288845
AM		 2295 if (gsym != NULL)
2296 gsym->flags |= BSF_KEEP;
c39ada54 2297 }
252b5132 2298
594ef5db 2299 /* All went well. */
252b5132
RH		 2300 return;
2301
2302loser:
2303 non_fatal (_("%s: section `%s': error in %s: %s"),
2304 bfd_get_filename (ibfd),
2305 bfd_section_name (ibfd, isection),
2306 err, bfd_errmsg (bfd_get_error ()));
2307 status = 1;
2308}
2309
2310/* Copy the data of input section ISECTION of IBFD
2311 to an output section with the same name in OBFD.
2312 If stripping then don't copy any relocation info. */
2313
2314static void
84e2f313 2315copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
252b5132 2316{
d3ba0551 2317 bfd *obfd = obfdarg;
252b5132
RH		 2318 struct section_list *p;
2319 arelent **relpp;
2320 long relcount;
2321 sec_ptr osection;
2322 bfd_size_type size;
2323 long relsize;
dc156bc0 2324 flagword flags;
252b5132 2325
594ef5db
NC		 2326 /* If we have already failed earlier on,
2327 do not keep on generating complaints now. */
252b5132
RH		 2328 if (status != 0)
2329 return;
57938635 2330
2593f09a 2331 if (is_strip_section (ibfd, isection))
e0c60db2 2332 return;
252b5132 2333
2593f09a 2334 flags = bfd_get_section_flags (ibfd, isection);
dc156bc0
AM		 2335 if ((flags & SEC_GROUP) != 0)
2336 return;
2337
252b5132 2338 osection = isection->output_section;
135dfb4a 2339 size = bfd_get_section_size (isection);
252b5132
RH		 2340
2341 if (size == 0 || osection == 0)
2342 return;
2343
2593f09a
NC		 2344 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2345
0af11b59 2346 /* Core files do not need to be relocated. */
4dd67f29
MS		 2347 if (bfd_get_format (obfd) == bfd_core)
2348 relsize = 0;
2349 else
ed570f48
NC		 2350 {
2351 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
4dd67f29 2352
ed570f48
NC		 2353 if (relsize < 0)
2354 {
2355 /* Do not complain if the target does not support relocations. */
2356 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2357 relsize = 0;
2358 else
2359 RETURN_NONFATAL (bfd_get_filename (ibfd));
2360 }
2361 }
57938635 2362
252b5132 2363 if (relsize == 0)
d3ba0551 2364 bfd_set_reloc (obfd, osection, NULL, 0);
252b5132
RH		 2365 else
2366 {
d3ba0551 2367 relpp = xmalloc (relsize);
252b5132
RH		 2368 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2369 if (relcount < 0)
2370 RETURN_NONFATAL (bfd_get_filename (ibfd));
57938635 2371
252b5132
RH		 2372 if (strip_symbols == STRIP_ALL)
2373 {
2374 /* Remove relocations which are not in
0af11b59 2375 keep_strip_specific_list. */
252b5132
RH		 2376 arelent **temp_relpp;
2377 long temp_relcount = 0;
2378 long i;
57938635 2379
d3ba0551 2380 temp_relpp = xmalloc (relsize);
252b5132 2381 for (i = 0; i < relcount; i++)
d3ba0551
AM		 2382 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2383 keep_specific_list))
252b5132
RH		 2384 temp_relpp [temp_relcount++] = relpp [i];
2385 relcount = temp_relcount;
2386 free (relpp);
2387 relpp = temp_relpp;
2388 }
e0c60db2 2389
d3ba0551 2390 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
f0312d39
JJ		 2391 if (relcount == 0)
2392 free (relpp);
252b5132 2393 }
57938635 2394
d3e52d40
RS		 2395 if (extract_symbol)
2396 return;
2397
0af11b59 2398 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
4dd67f29 2399 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
252b5132 2400 {
d3ba0551 2401 void *memhunk = xmalloc (size);
252b5132 2402
d3ba0551 2403 if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
252b5132
RH		 2404 RETURN_NONFATAL (bfd_get_filename (ibfd));
2405
9e48b4c6
NC		 2406 if (reverse_bytes)
2407 {
2408 /* We don't handle leftover bytes (too many possible behaviors,
2409 and we don't know what the user wants). The section length
2410 must be a multiple of the number of bytes to swap. */
2411 if ((size % reverse_bytes) == 0)
2412 {
2413 unsigned long i, j;
2414 bfd_byte b;
2415
2416 for (i = 0; i < size; i += reverse_bytes)
2417 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
2418 {
2419 bfd_byte *m = (bfd_byte *) memhunk;
2420
2421 b = m[i + j];
2422 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
2423 m[(i + reverse_bytes) - (j + 1)] = b;
2424 }
2425 }
2426 else
2427 /* User must pad the section up in order to do this. */
2428 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
2429 bfd_section_name (ibfd, isection), reverse_bytes);
2430 }
2431
57938635 2432 if (copy_byte >= 0)
5e675b72
AM		 2433 {
2434 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2f01ffbf 2435 char *from = (char *) memhunk + copy_byte;
5e675b72 2436 char *to = memhunk;
2f01ffbf 2437 char *end = (char *) memhunk + size;
5e675b72
AM		 2438
2439 for (; from < end; from += interleave)
2440 *to++ = *from;
2441
2442 size = (size + interleave - 1 - copy_byte) / interleave;
2443 osection->lma /= interleave;
2444 }
252b5132 2445
d3ba0551 2446 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
252b5132
RH		 2447 RETURN_NONFATAL (bfd_get_filename (obfd));
2448
2449 free (memhunk);
2450 }
2451 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2452 {
d3ba0551 2453 void *memhunk = xmalloc (size);
252b5132
RH		 2454
2455 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2456 flag--they can just remove the section entirely and add it
2457 back again. However, we do permit them to turn on the
2458 SEC_HAS_CONTENTS flag, and take it to mean that the section
2459 contents should be zeroed out. */
2460
2461 memset (memhunk, 0, size);
d3ba0551 2462 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
252b5132
RH		 2463 RETURN_NONFATAL (bfd_get_filename (obfd));
2464 free (memhunk);
2465 }
2466}
2467
2468/* Get all the sections. This is used when --gap-fill or --pad-to is
2469 used. */
2470
2471static void
84e2f313 2472get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
252b5132 2473{
d3ba0551 2474 asection ***secppp = secppparg;
252b5132
RH		 2475
2476 **secppp = osection;
2477 ++(*secppp);
2478}
2479
2480/* Sort sections by VMA. This is called via qsort, and is used when
2481 --gap-fill or --pad-to is used. We force non loadable or empty
2482 sections to the front, where they are easier to ignore. */
2483
2484static int
84e2f313 2485compare_section_lma (const void *arg1, const void *arg2)
252b5132 2486{
d3ba0551
AM		 2487 const asection *const *sec1 = arg1;
2488 const asection *const *sec2 = arg2;
252b5132
RH		 2489 flagword flags1, flags2;
2490
2491 /* Sort non loadable sections to the front. */
2492 flags1 = (*sec1)->flags;
2493 flags2 = (*sec2)->flags;
2494 if ((flags1 & SEC_HAS_CONTENTS) == 0
2495 || (flags1 & SEC_LOAD) == 0)
2496 {
2497 if ((flags2 & SEC_HAS_CONTENTS) != 0
2498 && (flags2 & SEC_LOAD) != 0)
2499 return -1;
2500 }
2501 else
2502 {
2503 if ((flags2 & SEC_HAS_CONTENTS) == 0
2504 || (flags2 & SEC_LOAD) == 0)
2505 return 1;
2506 }
2507
2508 /* Sort sections by LMA. */
2509 if ((*sec1)->lma > (*sec2)->lma)
2510 return 1;
2511 else if ((*sec1)->lma < (*sec2)->lma)
2512 return -1;
2513
2514 /* Sort sections with the same LMA by size. */
135dfb4a 2515 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
252b5132 2516 return 1;
135dfb4a 2517 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
252b5132
RH		 2518 return -1;
2519
2520 return 0;
2521}
2522
2523/* Mark all the symbols which will be used in output relocations with
2524 the BSF_KEEP flag so that those symbols will not be stripped.
2525
2526 Ignore relocations which will not appear in the output file. */
2527
2528static void
84e2f313 2529mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
252b5132 2530{
d3ba0551 2531 asymbol **symbols = symbolsarg;
252b5132
RH		 2532 long relsize;
2533 arelent **relpp;
2534 long relcount, i;
2535
2536 /* Ignore an input section with no corresponding output section. */
2537 if (isection->output_section == NULL)
2538 return;
2539
2540 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2541 if (relsize < 0)
ed570f48
NC		 2542 {
2543 /* Do not complain if the target does not support relocations. */
2544 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2545 return;
2546 bfd_fatal (bfd_get_filename (ibfd));
2547 }
252b5132
RH		 2548
2549 if (relsize == 0)
2550 return;
2551
d3ba0551 2552 relpp = xmalloc (relsize);
252b5132
RH		 2553 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2554 if (relcount < 0)
2555 bfd_fatal (bfd_get_filename (ibfd));
2556
ec5d57d5
NC		 2557 /* Examine each symbol used in a relocation. If it's not one of the
2558 special bfd section symbols, then mark it with BSF_KEEP. */
252b5132
RH		 2559 for (i = 0; i < relcount; i++)
2560 {
ec5d57d5
NC		 2561 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2562 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2563 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2564 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
252b5132
RH		 2565 }
2566
2567 if (relpp != NULL)
2568 free (relpp);
2569}
2570
2571/* Write out debugging information. */
2572
b34976b6 2573static bfd_boolean
84e2f313
NC		 2574write_debugging_info (bfd *obfd, void *dhandle,
2575 long *symcountp ATTRIBUTE_UNUSED,
2576 asymbol ***symppp ATTRIBUTE_UNUSED)
252b5132
RH		 2577{
2578 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2579 return write_ieee_debugging_info (obfd, dhandle);
2580
2581 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2582 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2583 {
2584 bfd_byte *syms, *strings;
2585 bfd_size_type symsize, stringsize;
2586 asection *stabsec, *stabstrsec;
551b43fd 2587 flagword flags;
252b5132
RH		 2588
2589 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2590 &symsize, &strings,
2591 &stringsize))
b34976b6 2592 return FALSE;
252b5132 2593
551b43fd
AM		 2594 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2595 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2596 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
252b5132
RH		 2597 if (stabsec == NULL
2598 || stabstrsec == NULL
2599 || ! bfd_set_section_size (obfd, stabsec, symsize)
2600 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2601 || ! bfd_set_section_alignment (obfd, stabsec, 2)
551b43fd 2602 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
252b5132
RH		 2603 {
2604 non_fatal (_("%s: can't create debugging section: %s"),
2605 bfd_get_filename (obfd),
2606 bfd_errmsg (bfd_get_error ()));
b34976b6 2607 return FALSE;
252b5132
RH		 2608 }
2609
2610 /* We can get away with setting the section contents now because
2611 the next thing the caller is going to do is copy over the
2612 real sections. We may someday have to split the contents
2613 setting out of this function. */
d3ba0551
AM		 2614 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
2615 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
2616 stringsize))
252b5132
RH		 2617 {
2618 non_fatal (_("%s: can't set debugging section contents: %s"),
2619 bfd_get_filename (obfd),
2620 bfd_errmsg (bfd_get_error ()));
b34976b6 2621 return FALSE;
252b5132
RH		 2622 }
2623
b34976b6 2624 return TRUE;
252b5132
RH		 2625 }
2626
2627 non_fatal (_("%s: don't know how to write debugging information for %s"),
2628 bfd_get_filename (obfd), bfd_get_target (obfd));
b34976b6 2629 return FALSE;
252b5132
RH		 2630}
2631
2632static int
84e2f313 2633strip_main (int argc, char *argv[])
252b5132 2634{
7c29036b
NC		 2635 char *input_target = NULL;
2636 char *output_target = NULL;
b34976b6 2637 bfd_boolean show_version = FALSE;
7c29036b
NC		 2638 bfd_boolean formats_info = FALSE;
2639 int c;
2640 int i;
252b5132
RH		 2641 struct section_list *p;
2642 char *output_file = NULL;
2643
5fe11841 2644 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
252b5132
RH		 2645 strip_options, (int *) 0)) != EOF)
2646 {
2647 switch (c)
2648 {
2649 case 'I':
2650 input_target = optarg;
2651 break;
2652 case 'O':
2653 output_target = optarg;
2654 break;
2655 case 'F':
2656 input_target = output_target = optarg;
2657 break;
2658 case 'R':
b34976b6
AM		 2659 p = find_section_list (optarg, TRUE);
2660 p->remove = TRUE;
2661 sections_removed = TRUE;
252b5132
RH		 2662 break;
2663 case 's':
2664 strip_symbols = STRIP_ALL;
2665 break;
2666 case 'S':
2667 case 'g':
db4f6831 2668 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
252b5132
RH		 2669 strip_symbols = STRIP_DEBUG;
2670 break;
2671 case OPTION_STRIP_UNNEEDED:
2672 strip_symbols = STRIP_UNNEEDED;
2673 break;
2674 case 'K':
2675 add_specific_symbol (optarg, &keep_specific_list);
2676 break;
2677 case 'N':
2678 add_specific_symbol (optarg, &strip_specific_list);
2679 break;
2680 case 'o':
2681 output_file = optarg;
2682 break;
2683 case 'p':
b34976b6 2684 preserve_dates = TRUE;
252b5132
RH		 2685 break;
2686 case 'x':
2687 discard_locals = LOCALS_ALL;
2688 break;
2689 case 'X':
2690 discard_locals = LOCALS_START_L;
2691 break;
2692 case 'v':
b34976b6 2693 verbose = TRUE;
252b5132
RH		 2694 break;
2695 case 'V':
b34976b6 2696 show_version = TRUE;
252b5132 2697 break;
7c29036b
NC		 2698 case OPTION_FORMATS_INFO:
2699 formats_info = TRUE;
2700 break;
ed1653a7
NC		 2701 case OPTION_ONLY_KEEP_DEBUG:
2702 strip_symbols = STRIP_NONDEBUG;
2703 break;
1637cd90
JB		 2704 case OPTION_KEEP_FILE_SYMBOLS:
2705 keep_file_symbols = 1;
2706 break;
252b5132 2707 case 0:
594ef5db
NC		 2708 /* We've been given a long option. */
2709 break;
5fe11841
NC		 2710 case 'w':
2711 wildcard = TRUE;
2712 break;
8b53311e 2713 case 'H':
252b5132
RH		 2714 case 'h':
2715 strip_usage (stdout, 0);
2716 default:
2717 strip_usage (stderr, 1);
2718 }
2719 }
2720
84e2f313
NC		 2721 if (formats_info)
2722 {
2723 display_info ();
2724 return 0;
2725 }
c1c0eb9e 2726
252b5132
RH		 2727 if (show_version)
2728 print_version ("strip");
2729
2730 /* Default is to strip all symbols. */
2731 if (strip_symbols == STRIP_UNDEF
2732 && discard_locals == LOCALS_UNDEF
2733 && strip_specific_list == NULL)
2734 strip_symbols = STRIP_ALL;
2735
d3ba0551 2736 if (output_target == NULL)
252b5132
RH		 2737 output_target = input_target;
2738
2739 i = optind;
2740 if (i == argc
2741 || (output_file != NULL && (i + 1) < argc))
2742 strip_usage (stderr, 1);
2743
2744 for (; i < argc; i++)
2745 {
2746 int hold_status = status;
2747 struct stat statbuf;
2748 char *tmpname;
2749
f24ddbdd 2750 if (get_file_size (argv[i]) < 1)
d68c385b
NC		 2751 {
2752 status = 1;
2753 continue;
2754 }
f24ddbdd 2755
252b5132 2756 if (preserve_dates)
f24ddbdd
NC		 2757 /* No need to check the return value of stat().
2758 It has already been checked in get_file_size(). */
2759 stat (argv[i], &statbuf);
252b5132 2760
12f498a7 2761 if (output_file == NULL || strcmp (argv[i], output_file) == 0)
252b5132 2762 tmpname = make_tempname (argv[i]);
12f498a7
NS		 2763 else
2764 tmpname = output_file;
252b5132 2765
f9c026a8
NC		 2766 if (tmpname == NULL)
2767 {
2768 non_fatal (_("could not create temporary file to hold stripped copy of '%s'"),
2769 argv[i]);
2770 status = 1;
2771 continue;
2772 }
2773
d68c385b 2774 status = 0;
252b5132
RH		 2775 copy_file (argv[i], tmpname, input_target, output_target);
2776 if (status == 0)
2777 {
2778 if (preserve_dates)
2779 set_times (tmpname, &statbuf);
12f498a7
NS		 2780 if (output_file != tmpname)
2781 smart_rename (tmpname, output_file ? output_file : argv[i],
2782 preserve_dates);
252b5132
RH		 2783 status = hold_status;
2784 }
2785 else
bb14f524 2786 unlink_if_ordinary (tmpname);
12f498a7 2787 if (output_file != tmpname)
252b5132
RH		 2788 free (tmpname);
2789 }
2790
d68c385b 2791 return status;
252b5132
RH		 2792}
2793
2794static int
84e2f313 2795copy_main (int argc, char *argv[])
252b5132 2796{
43a0748c 2797 char * binary_architecture = NULL;
7c29036b
NC		 2798 char *input_filename = NULL;
2799 char *output_filename = NULL;
c1c0eb9e 2800 char *tmpname;
7c29036b
NC		 2801 char *input_target = NULL;
2802 char *output_target = NULL;
b34976b6
AM		 2803 bfd_boolean show_version = FALSE;
2804 bfd_boolean change_warn = TRUE;
7c29036b 2805 bfd_boolean formats_info = FALSE;
252b5132
RH		 2806 int c;
2807 struct section_list *p;
2808 struct stat statbuf;
2809
5fe11841 2810 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
252b5132
RH		 2811 copy_options, (int *) 0)) != EOF)
2812 {
2813 switch (c)
2814 {
2815 case 'b':
2816 copy_byte = atoi (optarg);
2817 if (copy_byte < 0)
2818 fatal (_("byte number must be non-negative"));
2819 break;
57938635 2820
0af11b59
KH		 2821 case 'B':
2822 binary_architecture = optarg;
2823 break;
43a0748c 2824
252b5132
RH		 2825 case 'i':
2826 interleave = atoi (optarg);
2827 if (interleave < 1)
2828 fatal (_("interleave must be positive"));
2829 break;
57938635 2830
252b5132
RH		 2831 case 'I':
2832 case 's': /* "source" - 'I' is preferred */
2833 input_target = optarg;
2834 break;
57938635 2835
252b5132
RH		 2836 case 'O':
2837 case 'd': /* "destination" - 'O' is preferred */
2838 output_target = optarg;
2839 break;
57938635 2840
252b5132
RH		 2841 case 'F':
2842 input_target = output_target = optarg;
2843 break;
57938635 2844
f91ea849 2845 case 'j':
b34976b6 2846 p = find_section_list (optarg, TRUE);
f91ea849
ILT		 2847 if (p->remove)
2848 fatal (_("%s both copied and removed"), optarg);
b34976b6
AM		 2849 p->copy = TRUE;
2850 sections_copied = TRUE;
f91ea849 2851 break;
57938635 2852
252b5132 2853 case 'R':
b34976b6 2854 p = find_section_list (optarg, TRUE);
f91ea849
ILT		 2855 if (p->copy)
2856 fatal (_("%s both copied and removed"), optarg);
b34976b6
AM		 2857 p->remove = TRUE;
2858 sections_removed = TRUE;
252b5132 2859 break;
57938635 2860
252b5132
RH		 2861 case 'S':
2862 strip_symbols = STRIP_ALL;
2863 break;
57938635 2864
252b5132
RH		 2865 case 'g':
2866 strip_symbols = STRIP_DEBUG;
2867 break;
57938635 2868
252b5132
RH		 2869 case OPTION_STRIP_UNNEEDED:
2870 strip_symbols = STRIP_UNNEEDED;
2871 break;
57938635 2872
ed1653a7
NC		 2873 case OPTION_ONLY_KEEP_DEBUG:
2874 strip_symbols = STRIP_NONDEBUG;
2875 break;
2876
1637cd90
JB		 2877 case OPTION_KEEP_FILE_SYMBOLS:
2878 keep_file_symbols = 1;
2879 break;
2880
2593f09a
NC		 2881 case OPTION_ADD_GNU_DEBUGLINK:
2882 gnu_debuglink_filename = optarg;
2883 break;
2884
252b5132
RH		 2885 case 'K':
2886 add_specific_symbol (optarg, &keep_specific_list);
2887 break;
57938635 2888
252b5132
RH		 2889 case 'N':
2890 add_specific_symbol (optarg, &strip_specific_list);
2891 break;
57938635 2892
bcf32829
JB		 2893 case OPTION_STRIP_UNNEEDED_SYMBOL:
2894 add_specific_symbol (optarg, &strip_unneeded_list);
2895 break;
2896
252b5132
RH		 2897 case 'L':
2898 add_specific_symbol (optarg, &localize_specific_list);
2899 break;
57938635 2900
7b4a0685
NC		 2901 case OPTION_GLOBALIZE_SYMBOL:
2902 add_specific_symbol (optarg, &globalize_specific_list);
2903 break;
2904
16b2b71c
NC		 2905 case 'G':
2906 add_specific_symbol (optarg, &keepglobal_specific_list);
2907 break;
2908
252b5132
RH		 2909 case 'W':
2910 add_specific_symbol (optarg, &weaken_specific_list);
2911 break;
57938635 2912
252b5132 2913 case 'p':
b34976b6 2914 preserve_dates = TRUE;
252b5132 2915 break;
57938635 2916
5fe11841
NC		 2917 case 'w':
2918 wildcard = TRUE;
2919 break;
2920
252b5132
RH		 2921 case 'x':
2922 discard_locals = LOCALS_ALL;
2923 break;
57938635 2924
252b5132
RH		 2925 case 'X':
2926 discard_locals = LOCALS_START_L;
2927 break;
57938635 2928
252b5132 2929 case 'v':
b34976b6 2930 verbose = TRUE;
252b5132 2931 break;
57938635 2932
252b5132 2933 case 'V':
b34976b6 2934 show_version = TRUE;
252b5132 2935 break;
57938635 2936
7c29036b
NC		 2937 case OPTION_FORMATS_INFO:
2938 formats_info = TRUE;
2939 break;
2940
252b5132 2941 case OPTION_WEAKEN:
b34976b6 2942 weaken = TRUE;
252b5132 2943 break;
57938635 2944
252b5132
RH		 2945 case OPTION_ADD_SECTION:
2946 {
2947 const char *s;
f24ddbdd 2948 off_t size;
252b5132
RH		 2949 struct section_add *pa;
2950 int len;
2951 char *name;
2952 FILE *f;
2953
2954 s = strchr (optarg, '=');
57938635 2955
252b5132 2956 if (s == NULL)
57938635 2957 fatal (_("bad format for %s"), "--add-section");
252b5132 2958
f24ddbdd
NC		 2959 size = get_file_size (s + 1);
2960 if (size < 1)
d68c385b
NC		 2961 {
2962 status = 1;
2963 break;
2964 }
252b5132 2965
d3ba0551 2966 pa = xmalloc (sizeof (struct section_add));
252b5132
RH		 2967
2968 len = s - optarg;
d3ba0551 2969 name = xmalloc (len + 1);
252b5132
RH		 2970 strncpy (name, optarg, len);
2971 name[len] = '\0';
2972 pa->name = name;
2973
2974 pa->filename = s + 1;
f24ddbdd
NC		 2975 pa->size = size;
2976 pa->contents = xmalloc (size);
252b5132 2977
252b5132 2978 f = fopen (pa->filename, FOPEN_RB);
57938635 2979
252b5132 2980 if (f == NULL)
84e2f313
NC		 2981 fatal (_("cannot open: %s: %s"),
2982 pa->filename, strerror (errno));
57938635 2983
252b5132
RH		 2984 if (fread (pa->contents, 1, pa->size, f) == 0
2985 || ferror (f))
2986 fatal (_("%s: fread failed"), pa->filename);
2987
2988 fclose (f);
2989
2990 pa->next = add_sections;
2991 add_sections = pa;
2992 }
2993 break;
57938635 2994
252b5132
RH		 2995 case OPTION_CHANGE_START:
2996 change_start = parse_vma (optarg, "--change-start");
2997 break;
57938635 2998
252b5132
RH		 2999 case OPTION_CHANGE_SECTION_ADDRESS:
3000 case OPTION_CHANGE_SECTION_LMA:
3001 case OPTION_CHANGE_SECTION_VMA:
3002 {
3003 const char *s;
3004 int len;
3005 char *name;
b4c96d0d 3006 char *option = NULL;
252b5132 3007 bfd_vma val;
b4c96d0d 3008 enum change_action what = CHANGE_IGNORE;
57938635 3009
252b5132
RH		 3010 switch (c)
3011 {
b4c96d0d
ILT		 3012 case OPTION_CHANGE_SECTION_ADDRESS:
3013 option = "--change-section-address";
3014 break;
3015 case OPTION_CHANGE_SECTION_LMA:
3016 option = "--change-section-lma";
3017 break;
3018 case OPTION_CHANGE_SECTION_VMA:
3019 option = "--change-section-vma";
3020 break;
252b5132 3021 }
57938635 3022
252b5132
RH		 3023 s = strchr (optarg, '=');
3024 if (s == NULL)
3025 {
3026 s = strchr (optarg, '+');
3027 if (s == NULL)
3028 {
3029 s = strchr (optarg, '-');
3030 if (s == NULL)
3031 fatal (_("bad format for %s"), option);
3032 }
3033 }
3034
3035 len = s - optarg;
d3ba0551 3036 name = xmalloc (len + 1);
252b5132
RH		 3037 strncpy (name, optarg, len);
3038 name[len] = '\0';
3039
b34976b6 3040 p = find_section_list (name, TRUE);
252b5132
RH		 3041
3042 val = parse_vma (s + 1, option);
3043
3044 switch (*s)
3045 {
3046 case '=': what = CHANGE_SET; break;
3047 case '-': val = - val; /* Drop through. */
3048 case '+': what = CHANGE_MODIFY; break;
3049 }
57938635 3050
252b5132
RH		 3051 switch (c)
3052 {
3053 case OPTION_CHANGE_SECTION_ADDRESS:
3054 p->change_vma = what;
3055 p->vma_val = val;
3056 /* Drop through. */
57938635 3057
252b5132
RH		 3058 case OPTION_CHANGE_SECTION_LMA:
3059 p->change_lma = what;
3060 p->lma_val = val;
3061 break;
57938635 3062
252b5132
RH		 3063 case OPTION_CHANGE_SECTION_VMA:
3064 p->change_vma = what;
3065 p->vma_val = val;
3066 break;
3067 }
3068 }
3069 break;
57938635 3070
252b5132
RH		 3071 case OPTION_CHANGE_ADDRESSES:
3072 change_section_address = parse_vma (optarg, "--change-addresses");
3073 change_start = change_section_address;
3074 break;
57938635 3075
252b5132 3076 case OPTION_CHANGE_WARNINGS:
b34976b6 3077 change_warn = TRUE;
252b5132 3078 break;
57938635 3079
252b5132 3080 case OPTION_CHANGE_LEADING_CHAR:
b34976b6 3081 change_leading_char = TRUE;
252b5132 3082 break;
57938635 3083
252b5132 3084 case OPTION_DEBUGGING:
b34976b6 3085 convert_debugging = TRUE;
252b5132 3086 break;
57938635 3087
252b5132
RH		 3088 case OPTION_GAP_FILL:
3089 {
3090 bfd_vma gap_fill_vma;
3091
3092 gap_fill_vma = parse_vma (optarg, "--gap-fill");
3093 gap_fill = (bfd_byte) gap_fill_vma;
3094 if ((bfd_vma) gap_fill != gap_fill_vma)
3095 {
3096 char buff[20];
57938635 3097
252b5132 3098 sprintf_vma (buff, gap_fill_vma);
57938635 3099
252b5132
RH		 3100 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3101 buff, gap_fill);
3102 }
b34976b6 3103 gap_fill_set = TRUE;
252b5132
RH		 3104 }
3105 break;
57938635 3106
252b5132 3107 case OPTION_NO_CHANGE_WARNINGS:
b34976b6 3108 change_warn = FALSE;
252b5132 3109 break;
57938635 3110
252b5132
RH		 3111 case OPTION_PAD_TO:
3112 pad_to = parse_vma (optarg, "--pad-to");
b34976b6 3113 pad_to_set = TRUE;
252b5132 3114 break;
57938635 3115
252b5132 3116 case OPTION_REMOVE_LEADING_CHAR:
b34976b6 3117 remove_leading_char = TRUE;
252b5132 3118 break;
57938635
AM		 3119
3120 case OPTION_REDEFINE_SYM:
3121 {
3122 /* Push this redefinition onto redefine_symbol_list. */
3123
3124 int len;
3125 const char *s;
3126 const char *nextarg;
3127 char *source, *target;
3128
3129 s = strchr (optarg, '=');
3130 if (s == NULL)
594ef5db 3131 fatal (_("bad format for %s"), "--redefine-sym");
57938635
AM		 3132
3133 len = s - optarg;
d3ba0551 3134 source = xmalloc (len + 1);
57938635
AM		 3135 strncpy (source, optarg, len);
3136 source[len] = '\0';
3137
3138 nextarg = s + 1;
3139 len = strlen (nextarg);
d3ba0551 3140 target = xmalloc (len + 1);
57938635
AM		 3141 strcpy (target, nextarg);
3142
92991082 3143 redefine_list_append ("--redefine-sym", source, target);
57938635
AM		 3144
3145 free (source);
3146 free (target);
3147 }
3148 break;
3149
92991082
JT		 3150 case OPTION_REDEFINE_SYMS:
3151 add_redefine_syms_file (optarg);
3152 break;
3153
252b5132
RH		 3154 case OPTION_SET_SECTION_FLAGS:
3155 {
3156 const char *s;
3157 int len;
3158 char *name;
3159
3160 s = strchr (optarg, '=');
3161 if (s == NULL)
57938635 3162 fatal (_("bad format for %s"), "--set-section-flags");
252b5132
RH		 3163
3164 len = s - optarg;
d3ba0551 3165 name = xmalloc (len + 1);
252b5132
RH		 3166 strncpy (name, optarg, len);
3167 name[len] = '\0';
3168
b34976b6 3169 p = find_section_list (name, TRUE);
252b5132 3170
b34976b6 3171 p->set_flags = TRUE;
252b5132
RH		 3172 p->flags = parse_flags (s + 1);
3173 }
3174 break;
57938635 3175
594ef5db
NC		 3176 case OPTION_RENAME_SECTION:
3177 {
3178 flagword flags;
3bcfb3e4
AM		 3179 const char *eq, *fl;
3180 char *old_name;
3181 char *new_name;
594ef5db
NC		 3182 unsigned int len;
3183
3bcfb3e4
AM		 3184 eq = strchr (optarg, '=');
3185 if (eq == NULL)
594ef5db
NC		 3186 fatal (_("bad format for %s"), "--rename-section");
3187
3bcfb3e4 3188 len = eq - optarg;
594ef5db 3189 if (len == 0)
3bcfb3e4 3190 fatal (_("bad format for %s"), "--rename-section");
594ef5db 3191
d3ba0551 3192 old_name = xmalloc (len + 1);
594ef5db
NC		 3193 strncpy (old_name, optarg, len);
3194 old_name[len] = 0;
3195
3bcfb3e4
AM		 3196 eq++;
3197 fl = strchr (eq, ',');
3198 if (fl)
594ef5db 3199 {
3bcfb3e4
AM		 3200 flags = parse_flags (fl + 1);
3201 len = fl - eq;
594ef5db
NC		 3202 }
3203 else
3204 {
594ef5db 3205 flags = -1;
3bcfb3e4 3206 len = strlen (eq);
594ef5db
NC		 3207 }
3208
3bcfb3e4
AM		 3209 if (len == 0)
3210 fatal (_("bad format for %s"), "--rename-section");
3211
d3ba0551 3212 new_name = xmalloc (len + 1);
3bcfb3e4
AM		 3213 strncpy (new_name, eq, len);
3214 new_name[len] = 0;
3215
594ef5db
NC		 3216 add_section_rename (old_name, new_name, flags);
3217 }
3218 break;
3219
252b5132
RH		 3220 case OPTION_SET_START:
3221 set_start = parse_vma (optarg, "--set-start");
b34976b6 3222 set_start_set = TRUE;
252b5132 3223 break;
57938635 3224
0af11b59
KH		 3225 case OPTION_SREC_LEN:
3226 Chunk = parse_vma (optarg, "--srec-len");
3227 break;
420496c1 3228
0af11b59 3229 case OPTION_SREC_FORCES3:
b34976b6 3230 S3Forced = TRUE;
0af11b59 3231 break;
420496c1 3232
16b2b71c
NC		 3233 case OPTION_STRIP_SYMBOLS:
3234 add_specific_symbols (optarg, &strip_specific_list);
3235 break;
3236
bcf32829
JB		 3237 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3238 add_specific_symbols (optarg, &strip_unneeded_list);
3239 break;
3240
16b2b71c
NC		 3241 case OPTION_KEEP_SYMBOLS:
3242 add_specific_symbols (optarg, &keep_specific_list);
3243 break;
3244
d58c2e3a
RS		 3245 case OPTION_LOCALIZE_HIDDEN:
3246 localize_hidden = TRUE;
3247 break;
3248
16b2b71c
NC		 3249 case OPTION_LOCALIZE_SYMBOLS:
3250 add_specific_symbols (optarg, &localize_specific_list);
3251 break;
3252
7b4a0685
NC		 3253 case OPTION_GLOBALIZE_SYMBOLS:
3254 add_specific_symbols (optarg, &globalize_specific_list);
3255 break;
3256
16b2b71c
NC		 3257 case OPTION_KEEPGLOBAL_SYMBOLS:
3258 add_specific_symbols (optarg, &keepglobal_specific_list);
3259 break;
3260
3261 case OPTION_WEAKEN_SYMBOLS:
3262 add_specific_symbols (optarg, &weaken_specific_list);
3263 break;
3264
1ae8b3d2 3265 case OPTION_ALT_MACH_CODE:
f9d4ad2a
NC		 3266 use_alt_mach_code = strtoul (optarg, NULL, 0);
3267 if (use_alt_mach_code == 0)
3268 fatal (_("unable to parse alternative machine code"));
1ae8b3d2
AO		 3269 break;
3270
d7fb0dd2
NC		 3271 case OPTION_PREFIX_SYMBOLS:
3272 prefix_symbols_string = optarg;
3273 break;
3274
3275 case OPTION_PREFIX_SECTIONS:
3276 prefix_sections_string = optarg;
3277 break;
3278
3279 case OPTION_PREFIX_ALLOC_SECTIONS:
3280 prefix_alloc_sections_string = optarg;
3281 break;
3282
4087920c
MR		 3283 case OPTION_READONLY_TEXT:
3284 bfd_flags_to_set |= WP_TEXT;
3285 bfd_flags_to_clear &= ~WP_TEXT;
3286 break;
3287
3288 case OPTION_WRITABLE_TEXT:
3289 bfd_flags_to_clear |= WP_TEXT;
3290 bfd_flags_to_set &= ~WP_TEXT;
3291 break;
3292
3293 case OPTION_PURE:
3294 bfd_flags_to_set |= D_PAGED;
3295 bfd_flags_to_clear &= ~D_PAGED;
3296 break;
3297
3298 case OPTION_IMPURE:
3299 bfd_flags_to_clear |= D_PAGED;
3300 bfd_flags_to_set &= ~D_PAGED;
3301 break;
3302
d3e52d40
RS		 3303 case OPTION_EXTRACT_SYMBOL:
3304 extract_symbol = TRUE;
3305 break;
3306
9e48b4c6
NC		 3307 case OPTION_REVERSE_BYTES:
3308 {
3309 int prev = reverse_bytes;
3310
3311 reverse_bytes = atoi (optarg);
3312 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
3313 fatal (_("number of bytes to reverse must be positive and even"));
3314
3315 if (prev && prev != reverse_bytes)
3316 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
3317 prev);
3318 break;
3319 }
3320
252b5132 3321 case 0:
2593f09a
NC		 3322 /* We've been given a long option. */
3323 break;
57938635 3324
8b53311e 3325 case 'H':
252b5132
RH		 3326 case 'h':
3327 copy_usage (stdout, 0);
57938635 3328
252b5132
RH		 3329 default:
3330 copy_usage (stderr, 1);
3331 }
3332 }
3333
7c29036b
NC		 3334 if (formats_info)
3335 {
3336 display_info ();
3337 return 0;
3338 }
c1c0eb9e 3339
252b5132
RH		 3340 if (show_version)
3341 print_version ("objcopy");
3342
3343 if (copy_byte >= interleave)
3344 fatal (_("byte number must be less than interleave"));
3345
3346 if (optind == argc || optind + 2 < argc)
3347 copy_usage (stderr, 1);
3348
3349 input_filename = argv[optind];
3350 if (optind + 1 < argc)
3351 output_filename = argv[optind + 1];
3352
3353 /* Default is to strip no symbols. */
3354 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3355 strip_symbols = STRIP_NONE;
3356
d3ba0551 3357 if (output_target == NULL)
252b5132
RH		 3358 output_target = input_target;
3359
d3ba0551 3360 if (binary_architecture != NULL)
252b5132 3361 {
43a0748c 3362 if (input_target && strcmp (input_target, "binary") == 0)
0af11b59
KH		 3363 {
3364 const bfd_arch_info_type * temp_arch_info;
43a0748c
NC		 3365
3366 temp_arch_info = bfd_scan_arch (binary_architecture);
3367
0af11b59 3368 if (temp_arch_info != NULL)
b749473b
NC		 3369 {
3370 bfd_external_binary_architecture = temp_arch_info->arch;
3371 bfd_external_machine = temp_arch_info->mach;
3372 }
0af11b59
KH		 3373 else
3374 fatal (_("architecture %s unknown"), binary_architecture);
3375 }
43a0748c
NC		 3376 else
3377 {
3378 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
3379 non_fatal (_(" Argument %s ignored"), binary_architecture);
3380 }
252b5132
RH		 3381 }
3382
43a0748c
NC		 3383 if (preserve_dates)
3384 if (stat (input_filename, & statbuf) < 0)
f24ddbdd
NC		 3385 fatal (_("warning: could not locate '%s'. System error message: %s"),
3386 input_filename, strerror (errno));
43a0748c 3387
0fcdcb91 3388 /* If there is no destination file, or the source and destination files
d3ba0551
AM		 3389 are the same, then create a temp and rename the result into the input. */
3390 if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
12f498a7 3391 tmpname = make_tempname (input_filename);
252b5132 3392 else
12f498a7 3393 tmpname = output_filename;
c1c0eb9e 3394
12f498a7
NS		 3395 if (tmpname == NULL)
3396 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
3397 input_filename, strerror (errno));
594ef5db 3398
12f498a7
NS		 3399 copy_file (input_filename, tmpname, input_target, output_target);
3400 if (status == 0)
3401 {
3402 if (preserve_dates)
3403 set_times (tmpname, &statbuf);
3404 if (tmpname != output_filename)
3405 smart_rename (tmpname, input_filename, preserve_dates);
252b5132 3406 }
12f498a7
NS		 3407 else
3408 unlink_if_ordinary (tmpname);
252b5132
RH		 3409
3410 if (change_warn)
3411 {
3412 for (p = change_sections; p != NULL; p = p->next)
3413 {
3414 if (! p->used)
3415 {
3416 if (p->change_vma != CHANGE_IGNORE)
3417 {
3418 char buff [20];
3419
3420 sprintf_vma (buff, p->vma_val);
57938635 3421
252b5132 3422 /* xgettext:c-format */
57938635
AM		 3423 non_fatal (_("%s %s%c0x%s never used"),
3424 "--change-section-vma",
252b5132
RH		 3425 p->name,
3426 p->change_vma == CHANGE_SET ? '=' : '+',
3427 buff);
3428 }
57938635 3429
252b5132
RH		 3430 if (p->change_lma != CHANGE_IGNORE)
3431 {
3432 char buff [20];
3433
3434 sprintf_vma (buff, p->lma_val);
57938635 3435
252b5132 3436 /* xgettext:c-format */
57938635
AM		 3437 non_fatal (_("%s %s%c0x%s never used"),
3438 "--change-section-lma",
252b5132
RH		 3439 p->name,
3440 p->change_lma == CHANGE_SET ? '=' : '+',
3441 buff);
3442 }
3443 }
3444 }
3445 }
3446
3447 return 0;
3448}
3449
3450int
84e2f313 3451main (int argc, char *argv[])
252b5132
RH		 3452{
3453#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3454 setlocale (LC_MESSAGES, "");
3882b010
L		 3455#endif
3456#if defined (HAVE_SETLOCALE)
3457 setlocale (LC_CTYPE, "");
252b5132
RH		 3458#endif
3459 bindtextdomain (PACKAGE, LOCALEDIR);
3460 textdomain (PACKAGE);
3461
3462 program_name = argv[0];
3463 xmalloc_set_program_name (program_name);
3464
3465 START_PROGRESS (program_name, 0);
3466
869b9d07
MM		 3467 expandargv (&argc, &argv);
3468
252b5132
RH		 3469 strip_symbols = STRIP_UNDEF;
3470 discard_locals = LOCALS_UNDEF;
3471
3472 bfd_init ();
3473 set_default_bfd_target ();
3474
3475 if (is_strip < 0)
3476 {
3477 int i = strlen (program_name);
5af11cab
AM		 3478#ifdef HAVE_DOS_BASED_FILE_SYSTEM
3479 /* Drop the .exe suffix, if any. */
3480 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
3481 {
3482 i -= 4;
3483 program_name[i] = '\0';
3484 }
3485#endif
3486 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
252b5132
RH		 3487 }
3488
3489 if (is_strip)
3490 strip_main (argc, argv);
3491 else
3492 copy_main (argc, argv);
3493
3494 END_PROGRESS (program_name);
3495
3496 return status;
3497}
GDB Binutils - Deliverables
This page took 0.49715 seconds and 4 git commands to generate.