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2007-06-28 Michael Snyder <msnyder@svkmacdonelllnx>
[thirdparty/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;
d8121479
L		 913 int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
914 == HAS_RELOC;
252b5132
RH		 915
916 for (; src_count < symcount; src_count++)
917 {
918 asymbol *sym = from[src_count];
919 flagword flags = sym->flags;
d7fb0dd2 920 char *name = (char *) bfd_asymbol_name (sym);
312aaa3c
NC		 921 bfd_boolean keep;
922 bfd_boolean used_in_reloc = FALSE;
b34976b6 923 bfd_boolean undefined;
d7fb0dd2
NC		 924 bfd_boolean rem_leading_char;
925 bfd_boolean add_leading_char;
926
927 undefined = bfd_is_und_section (bfd_get_section (sym));
252b5132 928
57938635
AM		 929 if (redefine_sym_list)
930 {
d7fb0dd2 931 char *old_name, *new_name;
57938635 932
d7fb0dd2
NC		 933 old_name = (char *) bfd_asymbol_name (sym);
934 new_name = (char *) lookup_sym_redefinition (old_name);
66491ebc
AM		 935 bfd_asymbol_name (sym) = new_name;
936 name = new_name;
57938635
AM		 937 }
938
d7fb0dd2
NC		 939 /* Check if we will remove the current leading character. */
940 rem_leading_char =
941 (name[0] == bfd_get_symbol_leading_char (abfd))
942 && (change_leading_char
943 || (remove_leading_char
944 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
945 || undefined
946 || bfd_is_com_section (bfd_get_section (sym)))));
947
948 /* Check if we will add a new leading character. */
949 add_leading_char =
950 change_leading_char
951 && (bfd_get_symbol_leading_char (obfd) != '\0')
952 && (bfd_get_symbol_leading_char (abfd) == '\0'
953 || (name[0] == bfd_get_symbol_leading_char (abfd)));
954
955 /* Short circuit for change_leading_char if we can do it in-place. */
956 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
957 {
958 name[0] = bfd_get_symbol_leading_char (obfd);
959 bfd_asymbol_name (sym) = name;
960 rem_leading_char = FALSE;
961 add_leading_char = FALSE;
962 }
963
964 /* Remove leading char. */
965 if (rem_leading_char)
66491ebc 966 bfd_asymbol_name (sym) = ++name;
d7fb0dd2
NC		 967
968 /* Add new leading char and/or prefix. */
969 if (add_leading_char || prefix_symbols_string)
970 {
971 char *n, *ptr;
972
84e2f313
NC		 973 ptr = n = xmalloc (1 + strlen (prefix_symbols_string)
974 + strlen (name) + 1);
d7fb0dd2
NC		 975 if (add_leading_char)
976 *ptr++ = bfd_get_symbol_leading_char (obfd);
977
978 if (prefix_symbols_string)
979 {
980 strcpy (ptr, prefix_symbols_string);
981 ptr += strlen (prefix_symbols_string);
982 }
983
984 strcpy (ptr, name);
66491ebc
AM		 985 bfd_asymbol_name (sym) = n;
986 name = n;
252b5132
RH		 987 }
988
252b5132 989 if (strip_symbols == STRIP_ALL)
312aaa3c 990 keep = FALSE;
252b5132
RH		 991 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
992 || ((flags & BSF_SECTION_SYM) != 0
993 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
994 & BSF_KEEP) != 0))
312aaa3c
NC		 995 {
996 keep = TRUE;
997 used_in_reloc = TRUE;
998 }
0af11b59 999 else if (relocatable /* Relocatable file. */
d8121479 1000 && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
312aaa3c 1001 keep = TRUE;
16b2b71c
NC		 1002 else if (bfd_decode_symclass (sym) == 'I')
1003 /* Global symbols in $idata sections need to be retained
b34976b6 1004 even if relocatable is FALSE. External users of the
16b2b71c
NC		 1005 library containing the $idata section may reference these
1006 symbols. */
312aaa3c 1007 keep = TRUE;
252b5132
RH		 1008 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1009 || (flags & BSF_WEAK) != 0
24e01a36 1010 || undefined
252b5132
RH		 1011 || bfd_is_com_section (bfd_get_section (sym)))
1012 keep = strip_symbols != STRIP_UNNEEDED;
1013 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1014 keep = (strip_symbols != STRIP_DEBUG
1015 && strip_symbols != STRIP_UNNEEDED
1016 && ! convert_debugging);
082b7297 1017 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
af3bdff7
NC		 1018 /* COMDAT sections store special information in local
1019 symbols, so we cannot risk stripping any of them. */
312aaa3c 1020 keep = TRUE;
252b5132
RH		 1021 else /* Local symbol. */
1022 keep = (strip_symbols != STRIP_UNNEEDED
1023 && (discard_locals != LOCALS_ALL
1024 && (discard_locals != LOCALS_START_L
1025 || ! bfd_is_local_label (abfd, sym))));
1026
1027 if (keep && is_specified_symbol (name, strip_specific_list))
312aaa3c
NC		 1028 {
1029 /* There are multiple ways to set 'keep' above, but if it
1030 was the relocatable symbol case, then that's an error. */
1031 if (used_in_reloc)
1032 {
1033 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1034 status = 1;
1035 }
1036 else
1037 keep = FALSE;
1038 }
1039
bcf32829
JB		 1040 if (keep
1041 && !(flags & BSF_KEEP)
1042 && is_specified_symbol (name, strip_unneeded_list))
312aaa3c
NC		 1043 keep = FALSE;
1044
1637cd90
JB		 1045 if (!keep
1046 && ((keep_file_symbols && (flags & BSF_FILE))
1047 || is_specified_symbol (name, keep_specific_list)))
312aaa3c
NC		 1048 keep = TRUE;
1049
252b5132 1050 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
312aaa3c 1051 keep = FALSE;
e0c60db2 1052
7b4a0685 1053 if (keep)
252b5132 1054 {
7b4a0685
NC		 1055 if ((flags & BSF_GLOBAL) != 0
1056 && (weaken || is_specified_symbol (name, weaken_specific_list)))
1057 {
1058 sym->flags &= ~ BSF_GLOBAL;
1059 sym->flags |= BSF_WEAK;
1060 }
252b5132 1061
7b4a0685
NC		 1062 if (!undefined
1063 && (flags & (BSF_GLOBAL | BSF_WEAK))
1064 && (is_specified_symbol (name, localize_specific_list)
1065 || (keepglobal_specific_list != NULL
d58c2e3a
RS		 1066 && ! is_specified_symbol (name, keepglobal_specific_list))
1067 || (localize_hidden && is_hidden_symbol (sym))))
7b4a0685
NC		 1068 {
1069 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1070 sym->flags |= BSF_LOCAL;
1071 }
1072
1073 if (!undefined
1074 && (flags & BSF_LOCAL)
1075 && is_specified_symbol (name, globalize_specific_list))
1076 {
1077 sym->flags &= ~ BSF_LOCAL;
1078 sym->flags |= BSF_GLOBAL;
1079 }
1080
1081 to[dst_count++] = sym;
1082 }
252b5132
RH		 1083 }
1084
1085 to[dst_count] = NULL;
1086
1087 return dst_count;
1088}
1089
594ef5db
NC		 1090/* Find the redefined name of symbol SOURCE. */
1091
57938635 1092static const char *
84e2f313 1093lookup_sym_redefinition (const char *source)
57938635 1094{
57938635
AM		 1095 struct redefine_node *list;
1096
57938635 1097 for (list = redefine_sym_list; list != NULL; list = list->next)
594ef5db
NC		 1098 if (strcmp (source, list->source) == 0)
1099 return list->target;
1100
1101 return source;
57938635
AM		 1102}
1103
594ef5db 1104/* Add a node to a symbol redefine list. */
57938635
AM		 1105
1106static void
84e2f313 1107redefine_list_append (const char *cause, const char *source, const char *target)
57938635
AM		 1108{
1109 struct redefine_node **p;
1110 struct redefine_node *list;
1111 struct redefine_node *new_node;
1112
1113 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1114 {
1115 if (strcmp (source, list->source) == 0)
594ef5db 1116 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
92991082 1117 cause, source);
57938635
AM		 1118
1119 if (strcmp (target, list->target) == 0)
594ef5db 1120 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
92991082 1121 cause, target);
57938635
AM		 1122 }
1123
d3ba0551 1124 new_node = xmalloc (sizeof (struct redefine_node));
57938635
AM		 1125
1126 new_node->source = strdup (source);
1127 new_node->target = strdup (target);
1128 new_node->next = NULL;
1129
1130 *p = new_node;
1131}
1132
92991082
JT		 1133/* Handle the --redefine-syms option. Read lines containing "old new"
1134 from the file, and add them to the symbol redefine list. */
1135
2593f09a 1136static void
84e2f313 1137add_redefine_syms_file (const char *filename)
92991082
JT		 1138{
1139 FILE *file;
1140 char *buf;
84e2f313
NC		 1141 size_t bufsize;
1142 size_t len;
1143 size_t outsym_off;
92991082
JT		 1144 int c, lineno;
1145
1146 file = fopen (filename, "r");
d3ba0551 1147 if (file == NULL)
92991082
JT		 1148 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1149 filename, strerror (errno));
1150
1151 bufsize = 100;
d3ba0551 1152 buf = xmalloc (bufsize);
92991082
JT		 1153
1154 lineno = 1;
1155 c = getc (file);
1156 len = 0;
1157 outsym_off = 0;
1158 while (c != EOF)
1159 {
1160 /* Collect the input symbol name. */
1161 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1162 {
1163 if (c == '#')
1164 goto comment;
1165 buf[len++] = c;
1166 if (len >= bufsize)
1167 {
1168 bufsize *= 2;
1169 buf = xrealloc (buf, bufsize);
1170 }
1171 c = getc (file);
1172 }
1173 buf[len++] = '\0';
1174 if (c == EOF)
1175 break;
1176
1177 /* Eat white space between the symbol names. */
1178 while (IS_WHITESPACE (c))
1179 c = getc (file);
1180 if (c == '#' || IS_LINE_TERMINATOR (c))
1181 goto comment;
1182 if (c == EOF)
1183 break;
1184
1185 /* Collect the output symbol name. */
1186 outsym_off = len;
1187 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1188 {
1189 if (c == '#')
1190 goto comment;
1191 buf[len++] = c;
1192 if (len >= bufsize)
1193 {
1194 bufsize *= 2;
1195 buf = xrealloc (buf, bufsize);
1196 }
1197 c = getc (file);
1198 }
1199 buf[len++] = '\0';
1200 if (c == EOF)
1201 break;
1202
1203 /* Eat white space at end of line. */
1204 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1205 c = getc (file);
1206 if (c == '#')
1207 goto comment;
1208 /* Handle \r\n. */
1209 if ((c == '\r' && (c = getc (file)) == '\n')
1210 || c == '\n' || c == EOF)
1211 {
1212 end_of_line:
1213 /* Append the redefinition to the list. */
1214 if (buf[0] != '\0')
1215 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1216
1217 lineno++;
1218 len = 0;
1219 outsym_off = 0;
1220 if (c == EOF)
1221 break;
1222 c = getc (file);
1223 continue;
1224 }
1225 else
d412a550 1226 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
92991082
JT		 1227 comment:
1228 if (len != 0 && (outsym_off == 0 || outsym_off == len))
d412a550 1229 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
92991082
JT		 1230 buf[len++] = '\0';
1231
1232 /* Eat the rest of the line and finish it. */
1233 while (c != '\n' && c != EOF)
1234 c = getc (file);
1235 goto end_of_line;
1236 }
1237
1238 if (len != 0)
d412a550 1239 fatal (_("%s:%d: premature end of file"), filename, lineno);
92991082
JT		 1240
1241 free (buf);
1242}
1243
77f762d6
L		 1244/* Copy unkown object file IBFD onto OBFD.
1245 Returns TRUE upon success, FALSE otherwise. */
1246
1247static bfd_boolean
1248copy_unknown_object (bfd *ibfd, bfd *obfd)
1249{
1250 char *cbuf;
1251 int tocopy;
1252 long ncopied;
1253 long size;
1254 struct stat buf;
1255
1256 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1257 {
1258 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1259 return FALSE;
1260 }
1261
1262 size = buf.st_size;
1263 if (size < 0)
1264 {
1265 non_fatal (_("stat returns negative size for `%s'"),
1266 bfd_get_archive_filename (ibfd));
1267 return FALSE;
1268 }
1269
1270 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1271 {
1272 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1273 return FALSE;
1274 }
1275
1276 if (verbose)
1277 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1278 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1279
1280 cbuf = xmalloc (BUFSIZE);
1281 ncopied = 0;
1282 while (ncopied < size)
1283 {
1284 tocopy = size - ncopied;
1285 if (tocopy > BUFSIZE)
1286 tocopy = BUFSIZE;
1287
1288 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1289 != (bfd_size_type) tocopy)
1290 {
1291 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1292 free (cbuf);
1293 return FALSE;
1294 }
1295
1296 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1297 != (bfd_size_type) tocopy)
1298 {
1299 bfd_nonfatal (bfd_get_filename (obfd));
1300 free (cbuf);
1301 return FALSE;
1302 }
1303
1304 ncopied += tocopy;
1305 }
1306
1307 chmod (bfd_get_filename (obfd), buf.st_mode);
1308 free (cbuf);
1309 return TRUE;
1310}
1311
950d48e7 1312/* Copy object file IBFD onto OBFD.
5b8c74e6 1313 Returns TRUE upon success, FALSE otherwise. */
252b5132 1314
950d48e7 1315static bfd_boolean
84e2f313 1316copy_object (bfd *ibfd, bfd *obfd)
252b5132
RH		 1317{
1318 bfd_vma start;
1319 long symcount;
1320 asection **osections = NULL;
84e2f313 1321 asection *gnu_debuglink_section = NULL;
252b5132
RH		 1322 bfd_size_type *gaps = NULL;
1323 bfd_size_type max_gap = 0;
1324 long symsize;
84e2f313 1325 void *dhandle;
66491ebc
AM		 1326 enum bfd_architecture iarch;
1327 unsigned int imach;
252b5132 1328
23719f39
NC		 1329 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1330 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1331 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
950d48e7 1332 fatal (_("Unable to change endianness of input file(s)"));
252b5132
RH		 1333
1334 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
950d48e7
NC		 1335 {
1336 bfd_nonfatal (bfd_get_filename (obfd));
1337 return FALSE;
1338 }
252b5132
RH		 1339
1340 if (verbose)
77f762d6
L		 1341 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1342 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
252b5132
RH		 1343 bfd_get_filename (obfd), bfd_get_target (obfd));
1344
d3e52d40
RS		 1345 if (extract_symbol)
1346 start = 0;
252b5132 1347 else
d3e52d40
RS		 1348 {
1349 if (set_start_set)
1350 start = set_start;
1351 else
1352 start = bfd_get_start_address (ibfd);
1353 start += change_start;
1354 }
252b5132 1355
0af11b59
KH		 1356 /* Neither the start address nor the flags
1357 need to be set for a core file. */
4dd67f29
MS		 1358 if (bfd_get_format (obfd) != bfd_core)
1359 {
4087920c
MR		 1360 flagword flags;
1361
1362 flags = bfd_get_file_flags (ibfd);
1363 flags |= bfd_flags_to_set;
1364 flags &= ~bfd_flags_to_clear;
1365 flags &= bfd_applicable_file_flags (obfd);
1366
4dd67f29 1367 if (!bfd_set_start_address (obfd, start)
4087920c 1368 || !bfd_set_file_flags (obfd, flags))
950d48e7 1369 {
77f762d6 1370 bfd_nonfatal (bfd_get_archive_filename (ibfd));
950d48e7
NC		 1371 return FALSE;
1372 }
4dd67f29 1373 }
252b5132 1374
594ef5db 1375 /* Copy architecture of input file to output file. */
66491ebc
AM		 1376 iarch = bfd_get_arch (ibfd);
1377 imach = bfd_get_mach (ibfd);
1378 if (!bfd_set_arch_mach (obfd, iarch, imach)
212a3c4d
L		 1379 && (ibfd->target_defaulted
1380 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
f57a841a
NC		 1381 {
1382 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
77f762d6
L		 1383 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1384 bfd_get_archive_filename (ibfd));
f57a841a 1385 else
77f762d6
L		 1386 non_fatal (_("Warning: Output file cannot represent architecture `%s'"),
1387 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1388 bfd_get_mach (ibfd)));
1389 return FALSE;
f57a841a 1390 }
57938635 1391
252b5132 1392 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
950d48e7 1393 {
77f762d6 1394 bfd_nonfatal (bfd_get_archive_filename (ibfd));
950d48e7
NC		 1395 return FALSE;
1396 }
252b5132
RH		 1397
1398 if (isympp)
62d732f5 1399 free (isympp);
57938635 1400
252b5132 1401 if (osympp != isympp)
62d732f5
AM		 1402 free (osympp);
1403
1404 isympp = NULL;
1405 osympp = NULL;
252b5132 1406
c39ada54
AM		 1407 symsize = bfd_get_symtab_upper_bound (ibfd);
1408 if (symsize < 0)
1409 {
1410 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1411 return FALSE;
1412 }
1413
1414 osympp = isympp = xmalloc (symsize);
1415 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1416 if (symcount < 0)
1417 {
1418 bfd_nonfatal (bfd_get_filename (ibfd));
1419 return FALSE;
1420 }
1421
252b5132
RH		 1422 /* BFD mandates that all output sections be created and sizes set before
1423 any output is done. Thus, we traverse all sections multiple times. */
d3ba0551 1424 bfd_map_over_sections (ibfd, setup_section, obfd);
252b5132 1425
42bb2e33 1426 setup_bfd_headers (ibfd, obfd);
80fccad2 1427
252b5132
RH		 1428 if (add_sections != NULL)
1429 {
1430 struct section_add *padd;
1431 struct section_list *pset;
1432
1433 for (padd = add_sections; padd != NULL; padd = padd->next)
1434 {
2593f09a
NC		 1435 flagword flags;
1436
551b43fd
AM		 1437 pset = find_section_list (padd->name, FALSE);
1438 if (pset != NULL)
1439 pset->used = TRUE;
1440
1441 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1442 if (pset != NULL && pset->set_flags)
1443 flags = pset->flags | SEC_HAS_CONTENTS;
1444
c8782eee
NC		 1445 /* bfd_make_section_with_flags() does not return very helpful
1446 error codes, so check for the most likely user error first. */
1447 if (bfd_get_section_by_name (obfd, padd->name))
252b5132 1448 {
c8782eee 1449 non_fatal (_("can't add section '%s' - it already exists!"), padd->name);
950d48e7 1450 return FALSE;
252b5132 1451 }
c8782eee
NC		 1452 else
1453 {
1454 padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
1455 if (padd->section == NULL)
1456 {
1457 non_fatal (_("can't create section `%s': %s"),
1458 padd->name, bfd_errmsg (bfd_get_error ()));
1459 return FALSE;
1460 }
1461 }
252b5132 1462
2593f09a 1463 if (! bfd_set_section_size (obfd, padd->section, padd->size))
950d48e7
NC		 1464 {
1465 bfd_nonfatal (bfd_get_filename (obfd));
1466 return FALSE;
1467 }
252b5132 1468
2593f09a
NC		 1469 if (pset != NULL)
1470 {
1471 if (pset->change_vma != CHANGE_IGNORE)
84e2f313
NC		 1472 if (! bfd_set_section_vma (obfd, padd->section,
1473 pset->vma_val))
950d48e7
NC		 1474 {
1475 bfd_nonfatal (bfd_get_filename (obfd));
1476 return FALSE;
1477 }
57938635 1478
2593f09a
NC		 1479 if (pset->change_lma != CHANGE_IGNORE)
1480 {
1481 padd->section->lma = pset->lma_val;
950d48e7 1482
2593f09a
NC		 1483 if (! bfd_set_section_alignment
1484 (obfd, padd->section,
1485 bfd_section_alignment (obfd, padd->section)))
950d48e7
NC		 1486 {
1487 bfd_nonfatal (bfd_get_filename (obfd));
1488 return FALSE;
1489 }
252b5132
RH		 1490 }
1491 }
1492 }
1493 }
1494
2593f09a
NC		 1495 if (gnu_debuglink_filename != NULL)
1496 {
84e2f313
NC		 1497 gnu_debuglink_section = bfd_create_gnu_debuglink_section
1498 (obfd, gnu_debuglink_filename);
e7c81c25
NC		 1499
1500 if (gnu_debuglink_section == NULL)
950d48e7
NC		 1501 {
1502 bfd_nonfatal (gnu_debuglink_filename);
1503 return FALSE;
1504 }
6e2c86ac
NC		 1505
1506 /* Special processing for PE format files. We
1507 have no way to distinguish PE from COFF here. */
1508 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
1509 {
1510 bfd_vma debuglink_vma;
1511 asection * highest_section;
1512 asection * sec;
1513
1514 /* The PE spec requires that all sections be adjacent and sorted
1515 in ascending order of VMA. It also specifies that debug
1516 sections should be last. This is despite the fact that debug
1517 sections are not loaded into memory and so in theory have no
1518 use for a VMA.
1519
1520 This means that the debuglink section must be given a non-zero
1521 VMA which makes it contiguous with other debug sections. So
1522 walk the current section list, find the section with the
1523 highest VMA and start the debuglink section after that one. */
1524 for (sec = obfd->sections, highest_section = NULL;
1525 sec != NULL;
1526 sec = sec->next)
1527 if (sec->vma > 0
1528 && (highest_section == NULL
1529 || sec->vma > highest_section->vma))
1530 highest_section = sec;
1531
1532 if (highest_section)
1533 debuglink_vma = BFD_ALIGN (highest_section->vma
1534 + highest_section->size,
1535 /* FIXME: We ought to be using
1536 COFF_PAGE_SIZE here or maybe
1537 bfd_get_section_alignment() (if it
1538 was set) but since this is for PE
1539 and we know the required alignment
1540 it is easier just to hard code it. */
1541 0x1000);
1542 else
1543 /* Umm, not sure what to do in this case. */
1544 debuglink_vma = 0x1000;
1545
1546 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
1547 }
950d48e7
NC		 1548 }
1549
1aa9ef63
L		 1550 if (bfd_count_sections (obfd) != 0
1551 && (gap_fill_set || pad_to_set))
252b5132
RH		 1552 {
1553 asection **set;
1554 unsigned int c, i;
1555
1556 /* We must fill in gaps between the sections and/or we must pad
1557 the last section to a specified address. We do this by
1558 grabbing a list of the sections, sorting them by VMA, and
1559 increasing the section sizes as required to fill the gaps.
1560 We write out the gap contents below. */
1561
1562 c = bfd_count_sections (obfd);
d3ba0551 1563 osections = xmalloc (c * sizeof (asection *));
252b5132 1564 set = osections;
d3ba0551 1565 bfd_map_over_sections (obfd, get_sections, &set);
252b5132
RH		 1566
1567 qsort (osections, c, sizeof (asection *), compare_section_lma);
1568
d3ba0551 1569 gaps = xmalloc (c * sizeof (bfd_size_type));
252b5132
RH		 1570 memset (gaps, 0, c * sizeof (bfd_size_type));
1571
1572 if (gap_fill_set)
1573 {
1574 for (i = 0; i < c - 1; i++)
1575 {
1576 flagword flags;
1577 bfd_size_type size;
1578 bfd_vma gap_start, gap_stop;
1579
1580 flags = bfd_get_section_flags (obfd, osections[i]);
1581 if ((flags & SEC_HAS_CONTENTS) == 0
1582 || (flags & SEC_LOAD) == 0)
1583 continue;
1584
1585 size = bfd_section_size (obfd, osections[i]);
1586 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1587 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1588 if (gap_start < gap_stop)
1589 {
1590 if (! bfd_set_section_size (obfd, osections[i],
1591 size + (gap_stop - gap_start)))
1592 {
1593 non_fatal (_("Can't fill gap after %s: %s"),
0af11b59
KH		 1594 bfd_get_section_name (obfd, osections[i]),
1595 bfd_errmsg (bfd_get_error ()));
252b5132
RH		 1596 status = 1;
1597 break;
1598 }
1599 gaps[i] = gap_stop - gap_start;
1600 if (max_gap < gap_stop - gap_start)
1601 max_gap = gap_stop - gap_start;
1602 }
1603 }
1604 }
1605
1606 if (pad_to_set)
1607 {
1608 bfd_vma lma;
1609 bfd_size_type size;
1610
1611 lma = bfd_section_lma (obfd, osections[c - 1]);
1612 size = bfd_section_size (obfd, osections[c - 1]);
1613 if (lma + size < pad_to)
1614 {
1615 if (! bfd_set_section_size (obfd, osections[c - 1],
1616 pad_to - lma))
1617 {
1618 non_fatal (_("Can't add padding to %s: %s"),
0af11b59
KH		 1619 bfd_get_section_name (obfd, osections[c - 1]),
1620 bfd_errmsg (bfd_get_error ()));
252b5132
RH		 1621 status = 1;
1622 }
1623 else
1624 {
1625 gaps[c - 1] = pad_to - (lma + size);
1626 if (max_gap < pad_to - (lma + size))
1627 max_gap = pad_to - (lma + size);
1628 }
1629 }
1630 }
1631 }
1632
594ef5db
NC		 1633 /* Symbol filtering must happen after the output sections
1634 have been created, but before their contents are set. */
252b5132 1635 dhandle = NULL;
252b5132
RH		 1636 if (convert_debugging)
1637 dhandle = read_debugging_info (ibfd, isympp, symcount);
57938635
AM		 1638
1639 if (strip_symbols == STRIP_DEBUG
252b5132
RH		 1640 || strip_symbols == STRIP_ALL
1641 || strip_symbols == STRIP_UNNEEDED
ed1653a7 1642 || strip_symbols == STRIP_NONDEBUG
252b5132 1643 || discard_locals != LOCALS_UNDEF
d58c2e3a 1644 || localize_hidden
252b5132
RH		 1645 || strip_specific_list != NULL
1646 || keep_specific_list != NULL
1647 || localize_specific_list != NULL
7b4a0685 1648 || globalize_specific_list != NULL
16b2b71c 1649 || keepglobal_specific_list != NULL
252b5132 1650 || weaken_specific_list != NULL
d7fb0dd2 1651 || prefix_symbols_string
252b5132 1652 || sections_removed
f91ea849 1653 || sections_copied
252b5132
RH		 1654 || convert_debugging
1655 || change_leading_char
1656 || remove_leading_char
57938635 1657 || redefine_sym_list
252b5132
RH		 1658 || weaken)
1659 {
1660 /* Mark symbols used in output relocations so that they
1661 are kept, even if they are local labels or static symbols.
57938635 1662
252b5132
RH		 1663 Note we iterate over the input sections examining their
1664 relocations since the relocations for the output sections
1665 haven't been set yet. mark_symbols_used_in_relocations will
1666 ignore input sections which have no corresponding output
1667 section. */
1668 if (strip_symbols != STRIP_ALL)
1669 bfd_map_over_sections (ibfd,
1670 mark_symbols_used_in_relocations,
d3ba0551
AM		 1671 isympp);
1672 osympp = xmalloc ((symcount + 1) * sizeof (asymbol *));
252b5132
RH		 1673 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1674 }
1675
1676 if (convert_debugging && dhandle != NULL)
1677 {
1678 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1679 {
1680 status = 1;
950d48e7 1681 return FALSE;
252b5132
RH		 1682 }
1683 }
1684
1685 bfd_set_symtab (obfd, osympp, symcount);
1686
1687 /* This has to happen after the symbol table has been set. */
d3ba0551 1688 bfd_map_over_sections (ibfd, copy_section, obfd);
252b5132
RH		 1689
1690 if (add_sections != NULL)
1691 {
1692 struct section_add *padd;
1693
1694 for (padd = add_sections; padd != NULL; padd = padd->next)
1695 {
d3ba0551
AM		 1696 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
1697 0, padd->size))
950d48e7
NC		 1698 {
1699 bfd_nonfatal (bfd_get_filename (obfd));
1700 return FALSE;
1701 }
252b5132
RH		 1702 }
1703 }
1704
e7c81c25
NC		 1705 if (gnu_debuglink_filename != NULL)
1706 {
1707 if (! bfd_fill_in_gnu_debuglink_section
1708 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
950d48e7
NC		 1709 {
1710 bfd_nonfatal (gnu_debuglink_filename);
1711 return FALSE;
1712 }
e7c81c25
NC		 1713 }
1714
252b5132
RH		 1715 if (gap_fill_set || pad_to_set)
1716 {
1717 bfd_byte *buf;
1718 int c, i;
1719
1720 /* Fill in the gaps. */
252b5132
RH		 1721 if (max_gap > 8192)
1722 max_gap = 8192;
d3ba0551
AM		 1723 buf = xmalloc (max_gap);
1724 memset (buf, gap_fill, max_gap);
252b5132
RH		 1725
1726 c = bfd_count_sections (obfd);
1727 for (i = 0; i < c; i++)
1728 {
1729 if (gaps[i] != 0)
1730 {
1731 bfd_size_type left;
1732 file_ptr off;
1733
1734 left = gaps[i];
1735 off = bfd_section_size (obfd, osections[i]) - left;
594ef5db 1736
252b5132
RH		 1737 while (left > 0)
1738 {
1739 bfd_size_type now;
1740
1741 if (left > 8192)
1742 now = 8192;
1743 else
1744 now = left;
1745
1746 if (! bfd_set_section_contents (obfd, osections[i], buf,
1747 off, now))
950d48e7
NC		 1748 {
1749 bfd_nonfatal (bfd_get_filename (obfd));
1750 return FALSE;
1751 }
252b5132
RH		 1752
1753 left -= now;
1754 off += now;
1755 }
1756 }
1757 }
1758 }
1759
d3e52d40
RS		 1760 /* Do not copy backend data if --extract-symbol is passed; anything
1761 that needs to look at the section contents will fail. */
1762 if (extract_symbol)
1763 return TRUE;
1764
252b5132
RH		 1765 /* Allow the BFD backend to copy any private data it understands
1766 from the input BFD to the output BFD. This is done last to
1767 permit the routine to look at the filtered symbol table, which is
1768 important for the ECOFF code at least. */
42bb2e33 1769 if (! bfd_copy_private_bfd_data (ibfd, obfd))
252b5132
RH		 1770 {
1771 non_fatal (_("%s: error copying private BFD data: %s"),
1772 bfd_get_filename (obfd),
1773 bfd_errmsg (bfd_get_error ()));
950d48e7 1774 return FALSE;
252b5132 1775 }
1ae8b3d2
AO		 1776
1777 /* Switch to the alternate machine code. We have to do this at the
1778 very end, because we only initialize the header when we create
1779 the first section. */
f9d4ad2a
NC		 1780 if (use_alt_mach_code != 0)
1781 {
1782 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
1783 {
1784 non_fatal (_("this target does not support %lu alternative machine codes"),
1785 use_alt_mach_code);
1786 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
1787 {
1788 non_fatal (_("treating that number as an absolute e_machine value instead"));
1789 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
1790 }
1791 else
1792 non_fatal (_("ignoring the alternative value"));
1793 }
1794 }
950d48e7
NC		 1795
1796 return TRUE;
252b5132
RH		 1797}
1798
1799/* Read each archive element in turn from IBFD, copy the
ee873e00
NC		 1800 contents to temp file, and keep the temp file handle.
1801 If 'force_output_target' is TRUE then make sure that
1802 all elements in the new archive are of the type
1803 'output_target'. */
252b5132
RH		 1804
1805static void
ee873e00
NC		 1806copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
1807 bfd_boolean force_output_target)
252b5132
RH		 1808{
1809 struct name_list
1810 {
1811 struct name_list *next;
4c168fa3 1812 const char *name;
252b5132
RH		 1813 bfd *obfd;
1814 } *list, *l;
1815 bfd **ptr = &obfd->archive_head;
1816 bfd *this_element;
f9c026a8 1817 char * dir;
252b5132
RH		 1818
1819 /* Make a temp directory to hold the contents. */
f9c026a8 1820 dir = make_tempdir (bfd_get_filename (obfd));
f9c026a8
NC		 1821 if (dir == NULL)
1822 fatal (_("cannot create tempdir for archive copying (error: %s)"),
1823 strerror (errno));
84e2f313 1824
252b5132
RH		 1825 obfd->has_armap = ibfd->has_armap;
1826
1827 list = NULL;
1828
1829 this_element = bfd_openr_next_archived_file (ibfd, NULL);
594ef5db 1830
b667df2e
AM		 1831 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1832 RETURN_NONFATAL (bfd_get_filename (obfd));
1833
d3ba0551 1834 while (!status && this_element != NULL)
252b5132 1835 {
4c168fa3
AM		 1836 char *output_name;
1837 bfd *output_bfd;
252b5132 1838 bfd *last_element;
8066d1a2
AS		 1839 struct stat buf;
1840 int stat_status = 0;
950d48e7 1841 bfd_boolean delete = TRUE;
8066d1a2 1842
4c168fa3
AM		 1843 /* Create an output file for this member. */
1844 output_name = concat (dir, "/",
1845 bfd_get_filename (this_element), (char *) 0);
1846
1847 /* If the file already exists, make another temp dir. */
1848 if (stat (output_name, &buf) >= 0)
1849 {
f9c026a8
NC		 1850 output_name = make_tempdir (output_name);
1851 if (output_name == NULL)
485be063
AM		 1852 fatal (_("cannot create tempdir for archive copying (error: %s)"),
1853 strerror (errno));
84e2f313 1854
d3ba0551 1855 l = xmalloc (sizeof (struct name_list));
4c168fa3
AM		 1856 l->name = output_name;
1857 l->next = list;
1858 l->obfd = NULL;
1859 list = l;
1860 output_name = concat (output_name, "/",
1861 bfd_get_filename (this_element), (char *) 0);
1862 }
1863
8066d1a2
AS		 1864 if (preserve_dates)
1865 {
1866 stat_status = bfd_stat_arch_elt (this_element, &buf);
594ef5db 1867
8066d1a2
AS		 1868 if (stat_status != 0)
1869 non_fatal (_("internal stat error on %s"),
1870 bfd_get_filename (this_element));
1871 }
252b5132 1872
d3ba0551 1873 l = xmalloc (sizeof (struct name_list));
252b5132
RH		 1874 l->name = output_name;
1875 l->next = list;
bee59fd2 1876 l->obfd = NULL;
252b5132
RH		 1877 list = l;
1878
b34976b6 1879 if (bfd_check_format (this_element, bfd_object))
77f762d6 1880 {
ee873e00
NC		 1881 /* PR binutils/3110: Cope with archives
1882 containing multiple target types. */
1883 if (force_output_target)
1884 output_bfd = bfd_openw (output_name, output_target);
1885 else
1886 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
1887
1888 if (output_bfd == NULL)
1889 RETURN_NONFATAL (output_name);
1890
77f762d6 1891 delete = ! copy_object (this_element, output_bfd);
252b5132 1892
77f762d6
L		 1893 if (! delete
1894 || bfd_get_arch (this_element) != bfd_arch_unknown)
1895 {
1896 if (!bfd_close (output_bfd))
1897 {
1898 bfd_nonfatal (bfd_get_filename (output_bfd));
1899 /* Error in new object file. Don't change archive. */
1900 status = 1;
1901 }
1902 }
1903 else
1904 goto copy_unknown_element;
1905 }
1906 else
252b5132 1907 {
77f762d6
L		 1908 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1909 bfd_get_archive_filename (this_element));
1910
ee873e00 1911 output_bfd = bfd_openw (output_name, output_target);
77f762d6
L		 1912copy_unknown_element:
1913 delete = !copy_unknown_object (this_element, output_bfd);
1914 if (!bfd_close_all_done (output_bfd))
1915 {
1916 bfd_nonfatal (bfd_get_filename (output_bfd));
1917 /* Error in new object file. Don't change archive. */
1918 status = 1;
1919 }
252b5132
RH		 1920 }
1921
950d48e7
NC		 1922 if (delete)
1923 {
1924 unlink (output_name);
1925 status = 1;
1926 }
1927 else
1928 {
1929 if (preserve_dates && stat_status == 0)
1930 set_times (output_name, &buf);
8066d1a2 1931
950d48e7
NC		 1932 /* Open the newly output file and attach to our list. */
1933 output_bfd = bfd_openr (output_name, output_target);
252b5132 1934
950d48e7 1935 l->obfd = output_bfd;
252b5132 1936
950d48e7 1937 *ptr = output_bfd;
cc481421 1938 ptr = &output_bfd->archive_next;
252b5132 1939
950d48e7 1940 last_element = this_element;
252b5132 1941
950d48e7 1942 this_element = bfd_openr_next_archived_file (ibfd, last_element);
252b5132 1943
950d48e7
NC		 1944 bfd_close (last_element);
1945 }
252b5132 1946 }
d3ba0551 1947 *ptr = NULL;
252b5132
RH		 1948
1949 if (!bfd_close (obfd))
1950 RETURN_NONFATAL (bfd_get_filename (obfd));
1951
1952 if (!bfd_close (ibfd))
1953 RETURN_NONFATAL (bfd_get_filename (ibfd));
1954
1955 /* Delete all the files that we opened. */
1956 for (l = list; l != NULL; l = l->next)
1957 {
4c168fa3
AM		 1958 if (l->obfd == NULL)
1959 rmdir (l->name);
1960 else
1961 {
1962 bfd_close (l->obfd);
1963 unlink (l->name);
1964 }
252b5132
RH		 1965 }
1966 rmdir (dir);
1967}
1968
1969/* The top-level control. */
1970
1971static void
84e2f313
NC		 1972copy_file (const char *input_filename, const char *output_filename,
1973 const char *input_target, const char *output_target)
252b5132
RH		 1974{
1975 bfd *ibfd;
49c12576
AM		 1976 char **obj_matching;
1977 char **core_matching;
252b5132 1978
f24ddbdd
NC		 1979 if (get_file_size (input_filename) < 1)
1980 {
1981 status = 1;
1982 return;
1983 }
1984
252b5132
RH		 1985 /* To allow us to do "strip *" without dying on the first
1986 non-object file, failures are nonfatal. */
252b5132
RH		 1987 ibfd = bfd_openr (input_filename, input_target);
1988 if (ibfd == NULL)
1989 RETURN_NONFATAL (input_filename);
1990
1991 if (bfd_check_format (ibfd, bfd_archive))
1992 {
ee873e00 1993 bfd_boolean force_output_target;
252b5132
RH		 1994 bfd *obfd;
1995
1996 /* bfd_get_target does not return the correct value until
1997 bfd_check_format succeeds. */
1998 if (output_target == NULL)
ee873e00
NC		 1999 {
2000 output_target = bfd_get_target (ibfd);
2001 force_output_target = FALSE;
2002 }
2003 else
2004 force_output_target = TRUE;
252b5132
RH		 2005
2006 obfd = bfd_openw (output_filename, output_target);
2007 if (obfd == NULL)
2008 RETURN_NONFATAL (output_filename);
2009
ee873e00 2010 copy_archive (ibfd, obfd, output_target, force_output_target);
252b5132 2011 }
49c12576 2012 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
252b5132
RH		 2013 {
2014 bfd *obfd;
49c12576 2015 do_copy:
950d48e7 2016
252b5132
RH		 2017 /* bfd_get_target does not return the correct value until
2018 bfd_check_format succeeds. */
2019 if (output_target == NULL)
2020 output_target = bfd_get_target (ibfd);
2021
2022 obfd = bfd_openw (output_filename, output_target);
2023 if (obfd == NULL)
2024 RETURN_NONFATAL (output_filename);
2025
a580b8e0
JB		 2026 if (! copy_object (ibfd, obfd))
2027 status = 1;
252b5132
RH		 2028
2029 if (!bfd_close (obfd))
2030 RETURN_NONFATAL (output_filename);
2031
2032 if (!bfd_close (ibfd))
2033 RETURN_NONFATAL (input_filename);
950d48e7 2034
252b5132
RH		 2035 }
2036 else
2037 {
49c12576
AM		 2038 bfd_error_type obj_error = bfd_get_error ();
2039 bfd_error_type core_error;
b34976b6 2040
49c12576
AM		 2041 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2042 {
2043 /* This probably can't happen.. */
2044 if (obj_error == bfd_error_file_ambiguously_recognized)
2045 free (obj_matching);
2046 goto do_copy;
2047 }
2048
2049 core_error = bfd_get_error ();
2050 /* Report the object error in preference to the core error. */
2051 if (obj_error != core_error)
2052 bfd_set_error (obj_error);
2053
252b5132 2054 bfd_nonfatal (input_filename);
57938635 2055
49c12576
AM		 2056 if (obj_error == bfd_error_file_ambiguously_recognized)
2057 {
2058 list_matching_formats (obj_matching);
2059 free (obj_matching);
2060 }
2061 if (core_error == bfd_error_file_ambiguously_recognized)
252b5132 2062 {
49c12576
AM		 2063 list_matching_formats (core_matching);
2064 free (core_matching);
252b5132 2065 }
57938635 2066
252b5132
RH		 2067 status = 1;
2068 }
2069}
2070
594ef5db
NC		 2071/* Add a name to the section renaming list. */
2072
2073static void
84e2f313
NC		 2074add_section_rename (const char * old_name, const char * new_name,
2075 flagword flags)
594ef5db
NC		 2076{
2077 section_rename * rename;
2078
2079 /* Check for conflicts first. */
2080 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2081 if (strcmp (rename->old_name, old_name) == 0)
2082 {
2083 /* Silently ignore duplicate definitions. */
2084 if (strcmp (rename->new_name, new_name) == 0
2085 && rename->flags == flags)
2086 return;
0af11b59 2087
594ef5db
NC		 2088 fatal (_("Multiple renames of section %s"), old_name);
2089 }
2090
d3ba0551 2091 rename = xmalloc (sizeof (* rename));
594ef5db
NC		 2092
2093 rename->old_name = old_name;
2094 rename->new_name = new_name;
2095 rename->flags = flags;
2096 rename->next = section_rename_list;
0af11b59 2097
594ef5db
NC		 2098 section_rename_list = rename;
2099}
2100
2101/* Check the section rename list for a new name of the input section
2102 ISECTION. Return the new name if one is found.
2103 Also set RETURNED_FLAGS to the flags to be used for this section. */
2104
2105static const char *
84e2f313
NC		 2106find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2107 flagword * returned_flags)
594ef5db
NC		 2108{
2109 const char * old_name = bfd_section_name (ibfd, isection);
2110 section_rename * rename;
2111
2112 /* Default to using the flags of the input section. */
2113 * returned_flags = bfd_get_section_flags (ibfd, isection);
2114
2115 for (rename = section_rename_list; rename != NULL; rename = rename->next)
2116 if (strcmp (rename->old_name, old_name) == 0)
2117 {
2118 if (rename->flags != (flagword) -1)
2119 * returned_flags = rename->flags;
2120
2121 return rename->new_name;
2122 }
2123
2124 return old_name;
2125}
2126
80fccad2
BW		 2127/* Once each of the sections is copied, we may still need to do some
2128 finalization work for private section headers. Do that here. */
2129
2130static void
2131setup_bfd_headers (bfd *ibfd, bfd *obfd)
2132{
2133 const char *err;
2134
2135 /* Allow the BFD backend to copy any private data it understands
2136 from the input section to the output section. */
2137 if (! bfd_copy_private_header_data (ibfd, obfd))
2138 {
2139 err = _("private header data");
2140 goto loser;
2141 }
2142
2143 /* All went well. */
2144 return;
2145
2146loser:
2147 non_fatal (_("%s: error in %s: %s"),
2148 bfd_get_filename (ibfd),
2149 err, bfd_errmsg (bfd_get_error ()));
2150 status = 1;
2151}
2152
594ef5db
NC		 2153/* Create a section in OBFD with the same
2154 name and attributes as ISECTION in IBFD. */
252b5132
RH		 2155
2156static void
84e2f313 2157setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
252b5132 2158{
d3ba0551 2159 bfd *obfd = obfdarg;
252b5132
RH		 2160 struct section_list *p;
2161 sec_ptr osection;
2162 bfd_size_type size;
2163 bfd_vma vma;
2164 bfd_vma lma;
2165 flagword flags;
1a89cc7d 2166 const char *err;
594ef5db 2167 const char * name;
d7fb0dd2 2168 char *prefix = NULL;
0af11b59 2169
2593f09a 2170 if (is_strip_section (ibfd, isection))
252b5132
RH		 2171 return;
2172
b34976b6 2173 p = find_section_list (bfd_section_name (ibfd, isection), FALSE);
252b5132 2174 if (p != NULL)
b34976b6 2175 p->used = TRUE;
252b5132 2176
594ef5db
NC		 2177 /* Get the, possibly new, name of the output section. */
2178 name = find_section_rename (ibfd, isection, & flags);
0af11b59 2179
d7fb0dd2 2180 /* Prefix sections. */
84e2f313
NC		 2181 if ((prefix_alloc_sections_string)
2182 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
d7fb0dd2
NC		 2183 prefix = prefix_alloc_sections_string;
2184 else if (prefix_sections_string)
2185 prefix = prefix_sections_string;
2186
2187 if (prefix)
2188 {
2189 char *n;
2190
2191 n = xmalloc (strlen (prefix) + strlen (name) + 1);
2192 strcpy (n, prefix);
2193 strcat (n, name);
2194 name = n;
2195 }
66491ebc 2196
551b43fd
AM		 2197 if (p != NULL && p->set_flags)
2198 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
42bb2e33
AM		 2199 else if (strip_symbols == STRIP_NONDEBUG
2200 && obfd->xvec->flavour != bfd_target_elf_flavour
2201 && (flags & SEC_ALLOC) != 0)
551b43fd
AM		 2202 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
2203
2204 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
57938635 2205
252b5132
RH		 2206 if (osection == NULL)
2207 {
1a89cc7d 2208 err = _("making");
252b5132
RH		 2209 goto loser;
2210 }
2211
551b43fd
AM		 2212 if (strip_symbols == STRIP_NONDEBUG
2213 && obfd->xvec->flavour == bfd_target_elf_flavour
2214 && (flags & SEC_ALLOC) != 0
2215 && (p == NULL || !p->set_flags))
2216 elf_section_type (osection) = SHT_NOBITS;
2217
252b5132
RH		 2218 size = bfd_section_size (ibfd, isection);
2219 if (copy_byte >= 0)
2220 size = (size + interleave - 1) / interleave;
d3e52d40
RS		 2221 else if (extract_symbol)
2222 size = 0;
252b5132
RH		 2223 if (! bfd_set_section_size (obfd, osection, size))
2224 {
1a89cc7d 2225 err = _("size");
252b5132
RH		 2226 goto loser;
2227 }
57938635 2228
252b5132
RH		 2229 vma = bfd_section_vma (ibfd, isection);
2230 if (p != NULL && p->change_vma == CHANGE_MODIFY)
2231 vma += p->vma_val;
2232 else if (p != NULL && p->change_vma == CHANGE_SET)
2233 vma = p->vma_val;
2234 else
2235 vma += change_section_address;
57938635 2236
d3e52d40 2237 if (! bfd_set_section_vma (obfd, osection, extract_symbol ? 0 : vma))
252b5132 2238 {
1a89cc7d 2239 err = _("vma");
252b5132
RH		 2240 goto loser;
2241 }
2242
2243 lma = isection->lma;
2244 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
2245 {
2246 if (p->change_lma == CHANGE_MODIFY)
2247 lma += p->lma_val;
2248 else if (p->change_lma == CHANGE_SET)
2249 lma = p->lma_val;
2250 else
2251 abort ();
2252 }
2253 else
2254 lma += change_section_address;
57938635 2255
d3e52d40 2256 osection->lma = extract_symbol ? 0 : lma;
252b5132
RH		 2257
2258 /* FIXME: This is probably not enough. If we change the LMA we
2259 may have to recompute the header for the file as well. */
b34976b6
AM		 2260 if (!bfd_set_section_alignment (obfd,
2261 osection,
2262 bfd_section_alignment (ibfd, isection)))
252b5132 2263 {
1a89cc7d 2264 err = _("alignment");
252b5132
RH		 2265 goto loser;
2266 }
2267
bc408b8a
JJ		 2268 /* Copy merge entity size. */
2269 osection->entsize = isection->entsize;
2270
252b5132
RH		 2271 /* This used to be mangle_section; we do here to avoid using
2272 bfd_get_section_by_name since some formats allow multiple
2273 sections with the same name. */
2274 isection->output_section = osection;
d3e52d40
RS		 2275 isection->output_offset = extract_symbol ? vma : 0;
2276
2277 /* Do not copy backend data if --extract-symbol is passed; anything
2278 that needs to look at the section contents will fail. */
2279 if (extract_symbol)
2280 return;
252b5132
RH		 2281
2282 /* Allow the BFD backend to copy any private data it understands
2283 from the input section to the output section. */
42bb2e33 2284 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
252b5132 2285 {
1a89cc7d 2286 err = _("private data");
252b5132
RH		 2287 goto loser;
2288 }
30288845 2289 else if ((isection->flags & SEC_GROUP) != 0)
c39ada54 2290 {
30288845 2291 asymbol *gsym = group_signature (isection);
c39ada54 2292
30288845
AM		 2293 if (gsym != NULL)
2294 gsym->flags |= BSF_KEEP;
c39ada54 2295 }
252b5132 2296
594ef5db 2297 /* All went well. */
252b5132
RH		 2298 return;
2299
2300loser:
2301 non_fatal (_("%s: section `%s': error in %s: %s"),
2302 bfd_get_filename (ibfd),
2303 bfd_section_name (ibfd, isection),
2304 err, bfd_errmsg (bfd_get_error ()));
2305 status = 1;
2306}
2307
2308/* Copy the data of input section ISECTION of IBFD
2309 to an output section with the same name in OBFD.
2310 If stripping then don't copy any relocation info. */
2311
2312static void
84e2f313 2313copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
252b5132 2314{
d3ba0551 2315 bfd *obfd = obfdarg;
252b5132
RH		 2316 struct section_list *p;
2317 arelent **relpp;
2318 long relcount;
2319 sec_ptr osection;
2320 bfd_size_type size;
2321 long relsize;
dc156bc0 2322 flagword flags;
252b5132 2323
594ef5db
NC		 2324 /* If we have already failed earlier on,
2325 do not keep on generating complaints now. */
252b5132
RH		 2326 if (status != 0)
2327 return;
57938635 2328
2593f09a 2329 if (is_strip_section (ibfd, isection))
e0c60db2 2330 return;
252b5132 2331
2593f09a 2332 flags = bfd_get_section_flags (ibfd, isection);
dc156bc0
AM		 2333 if ((flags & SEC_GROUP) != 0)
2334 return;
2335
252b5132 2336 osection = isection->output_section;
135dfb4a 2337 size = bfd_get_section_size (isection);
252b5132
RH		 2338
2339 if (size == 0 || osection == 0)
2340 return;
2341
2593f09a
NC		 2342 p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE);
2343
0af11b59 2344 /* Core files do not need to be relocated. */
4dd67f29
MS		 2345 if (bfd_get_format (obfd) == bfd_core)
2346 relsize = 0;
2347 else
ed570f48
NC		 2348 {
2349 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
4dd67f29 2350
ed570f48
NC		 2351 if (relsize < 0)
2352 {
2353 /* Do not complain if the target does not support relocations. */
2354 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2355 relsize = 0;
2356 else
2357 RETURN_NONFATAL (bfd_get_filename (ibfd));
2358 }
2359 }
57938635 2360
252b5132 2361 if (relsize == 0)
d3ba0551 2362 bfd_set_reloc (obfd, osection, NULL, 0);
252b5132
RH		 2363 else
2364 {
d3ba0551 2365 relpp = xmalloc (relsize);
252b5132
RH		 2366 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
2367 if (relcount < 0)
2368 RETURN_NONFATAL (bfd_get_filename (ibfd));
57938635 2369
252b5132
RH		 2370 if (strip_symbols == STRIP_ALL)
2371 {
2372 /* Remove relocations which are not in
0af11b59 2373 keep_strip_specific_list. */
252b5132
RH		 2374 arelent **temp_relpp;
2375 long temp_relcount = 0;
2376 long i;
57938635 2377
d3ba0551 2378 temp_relpp = xmalloc (relsize);
252b5132 2379 for (i = 0; i < relcount; i++)
d3ba0551
AM		 2380 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
2381 keep_specific_list))
252b5132
RH		 2382 temp_relpp [temp_relcount++] = relpp [i];
2383 relcount = temp_relcount;
2384 free (relpp);
2385 relpp = temp_relpp;
2386 }
e0c60db2 2387
d3ba0551 2388 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
f0312d39
JJ		 2389 if (relcount == 0)
2390 free (relpp);
252b5132 2391 }
57938635 2392
d3e52d40
RS		 2393 if (extract_symbol)
2394 return;
2395
0af11b59 2396 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
4dd67f29 2397 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
252b5132 2398 {
d3ba0551 2399 void *memhunk = xmalloc (size);
252b5132 2400
d3ba0551 2401 if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
252b5132
RH		 2402 RETURN_NONFATAL (bfd_get_filename (ibfd));
2403
9e48b4c6
NC		 2404 if (reverse_bytes)
2405 {
2406 /* We don't handle leftover bytes (too many possible behaviors,
2407 and we don't know what the user wants). The section length
2408 must be a multiple of the number of bytes to swap. */
2409 if ((size % reverse_bytes) == 0)
2410 {
2411 unsigned long i, j;
2412 bfd_byte b;
2413
2414 for (i = 0; i < size; i += reverse_bytes)
2415 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
2416 {
2417 bfd_byte *m = (bfd_byte *) memhunk;
2418
2419 b = m[i + j];
2420 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
2421 m[(i + reverse_bytes) - (j + 1)] = b;
2422 }
2423 }
2424 else
2425 /* User must pad the section up in order to do this. */
2426 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
2427 bfd_section_name (ibfd, isection), reverse_bytes);
2428 }
2429
57938635 2430 if (copy_byte >= 0)
5e675b72
AM		 2431 {
2432 /* Keep only every `copy_byte'th byte in MEMHUNK. */
2f01ffbf 2433 char *from = (char *) memhunk + copy_byte;
5e675b72 2434 char *to = memhunk;
2f01ffbf 2435 char *end = (char *) memhunk + size;
5e675b72
AM		 2436
2437 for (; from < end; from += interleave)
2438 *to++ = *from;
2439
2440 size = (size + interleave - 1 - copy_byte) / interleave;
2441 osection->lma /= interleave;
2442 }
252b5132 2443
d3ba0551 2444 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
252b5132
RH		 2445 RETURN_NONFATAL (bfd_get_filename (obfd));
2446
2447 free (memhunk);
2448 }
2449 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
2450 {
d3ba0551 2451 void *memhunk = xmalloc (size);
252b5132
RH		 2452
2453 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
2454 flag--they can just remove the section entirely and add it
2455 back again. However, we do permit them to turn on the
2456 SEC_HAS_CONTENTS flag, and take it to mean that the section
2457 contents should be zeroed out. */
2458
2459 memset (memhunk, 0, size);
d3ba0551 2460 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
252b5132
RH		 2461 RETURN_NONFATAL (bfd_get_filename (obfd));
2462 free (memhunk);
2463 }
2464}
2465
2466/* Get all the sections. This is used when --gap-fill or --pad-to is
2467 used. */
2468
2469static void
84e2f313 2470get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
252b5132 2471{
d3ba0551 2472 asection ***secppp = secppparg;
252b5132
RH		 2473
2474 **secppp = osection;
2475 ++(*secppp);
2476}
2477
2478/* Sort sections by VMA. This is called via qsort, and is used when
2479 --gap-fill or --pad-to is used. We force non loadable or empty
2480 sections to the front, where they are easier to ignore. */
2481
2482static int
84e2f313 2483compare_section_lma (const void *arg1, const void *arg2)
252b5132 2484{
d3ba0551
AM		 2485 const asection *const *sec1 = arg1;
2486 const asection *const *sec2 = arg2;
252b5132
RH		 2487 flagword flags1, flags2;
2488
2489 /* Sort non loadable sections to the front. */
2490 flags1 = (*sec1)->flags;
2491 flags2 = (*sec2)->flags;
2492 if ((flags1 & SEC_HAS_CONTENTS) == 0
2493 || (flags1 & SEC_LOAD) == 0)
2494 {
2495 if ((flags2 & SEC_HAS_CONTENTS) != 0
2496 && (flags2 & SEC_LOAD) != 0)
2497 return -1;
2498 }
2499 else
2500 {
2501 if ((flags2 & SEC_HAS_CONTENTS) == 0
2502 || (flags2 & SEC_LOAD) == 0)
2503 return 1;
2504 }
2505
2506 /* Sort sections by LMA. */
2507 if ((*sec1)->lma > (*sec2)->lma)
2508 return 1;
2509 else if ((*sec1)->lma < (*sec2)->lma)
2510 return -1;
2511
2512 /* Sort sections with the same LMA by size. */
135dfb4a 2513 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
252b5132 2514 return 1;
135dfb4a 2515 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
252b5132
RH		 2516 return -1;
2517
2518 return 0;
2519}
2520
2521/* Mark all the symbols which will be used in output relocations with
2522 the BSF_KEEP flag so that those symbols will not be stripped.
2523
2524 Ignore relocations which will not appear in the output file. */
2525
2526static void
84e2f313 2527mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
252b5132 2528{
d3ba0551 2529 asymbol **symbols = symbolsarg;
252b5132
RH		 2530 long relsize;
2531 arelent **relpp;
2532 long relcount, i;
2533
2534 /* Ignore an input section with no corresponding output section. */
2535 if (isection->output_section == NULL)
2536 return;
2537
2538 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
2539 if (relsize < 0)
ed570f48
NC		 2540 {
2541 /* Do not complain if the target does not support relocations. */
2542 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
2543 return;
2544 bfd_fatal (bfd_get_filename (ibfd));
2545 }
252b5132
RH		 2546
2547 if (relsize == 0)
2548 return;
2549
d3ba0551 2550 relpp = xmalloc (relsize);
252b5132
RH		 2551 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
2552 if (relcount < 0)
2553 bfd_fatal (bfd_get_filename (ibfd));
2554
ec5d57d5
NC		 2555 /* Examine each symbol used in a relocation. If it's not one of the
2556 special bfd section symbols, then mark it with BSF_KEEP. */
252b5132
RH		 2557 for (i = 0; i < relcount; i++)
2558 {
ec5d57d5
NC		 2559 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
2560 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
2561 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
2562 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
252b5132
RH		 2563 }
2564
2565 if (relpp != NULL)
2566 free (relpp);
2567}
2568
2569/* Write out debugging information. */
2570
b34976b6 2571static bfd_boolean
84e2f313
NC		 2572write_debugging_info (bfd *obfd, void *dhandle,
2573 long *symcountp ATTRIBUTE_UNUSED,
2574 asymbol ***symppp ATTRIBUTE_UNUSED)
252b5132
RH		 2575{
2576 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
2577 return write_ieee_debugging_info (obfd, dhandle);
2578
2579 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
2580 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2581 {
2582 bfd_byte *syms, *strings;
2583 bfd_size_type symsize, stringsize;
2584 asection *stabsec, *stabstrsec;
551b43fd 2585 flagword flags;
252b5132
RH		 2586
2587 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
2588 &symsize, &strings,
2589 &stringsize))
b34976b6 2590 return FALSE;
252b5132 2591
551b43fd
AM		 2592 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
2593 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
2594 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
252b5132
RH		 2595 if (stabsec == NULL
2596 || stabstrsec == NULL
2597 || ! bfd_set_section_size (obfd, stabsec, symsize)
2598 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
2599 || ! bfd_set_section_alignment (obfd, stabsec, 2)
551b43fd 2600 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
252b5132
RH		 2601 {
2602 non_fatal (_("%s: can't create debugging section: %s"),
2603 bfd_get_filename (obfd),
2604 bfd_errmsg (bfd_get_error ()));
b34976b6 2605 return FALSE;
252b5132
RH		 2606 }
2607
2608 /* We can get away with setting the section contents now because
2609 the next thing the caller is going to do is copy over the
2610 real sections. We may someday have to split the contents
2611 setting out of this function. */
d3ba0551
AM		 2612 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
2613 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
2614 stringsize))
252b5132
RH		 2615 {
2616 non_fatal (_("%s: can't set debugging section contents: %s"),
2617 bfd_get_filename (obfd),
2618 bfd_errmsg (bfd_get_error ()));
b34976b6 2619 return FALSE;
252b5132
RH		 2620 }
2621
b34976b6 2622 return TRUE;
252b5132
RH		 2623 }
2624
2625 non_fatal (_("%s: don't know how to write debugging information for %s"),
2626 bfd_get_filename (obfd), bfd_get_target (obfd));
b34976b6 2627 return FALSE;
252b5132
RH		 2628}
2629
2630static int
84e2f313 2631strip_main (int argc, char *argv[])
252b5132 2632{
7c29036b
NC		 2633 char *input_target = NULL;
2634 char *output_target = NULL;
b34976b6 2635 bfd_boolean show_version = FALSE;
7c29036b
NC		 2636 bfd_boolean formats_info = FALSE;
2637 int c;
2638 int i;
252b5132
RH		 2639 struct section_list *p;
2640 char *output_file = NULL;
2641
5fe11841 2642 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw",
252b5132
RH		 2643 strip_options, (int *) 0)) != EOF)
2644 {
2645 switch (c)
2646 {
2647 case 'I':
2648 input_target = optarg;
2649 break;
2650 case 'O':
2651 output_target = optarg;
2652 break;
2653 case 'F':
2654 input_target = output_target = optarg;
2655 break;
2656 case 'R':
b34976b6
AM		 2657 p = find_section_list (optarg, TRUE);
2658 p->remove = TRUE;
2659 sections_removed = TRUE;
252b5132
RH		 2660 break;
2661 case 's':
2662 strip_symbols = STRIP_ALL;
2663 break;
2664 case 'S':
2665 case 'g':
db4f6831 2666 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
252b5132
RH		 2667 strip_symbols = STRIP_DEBUG;
2668 break;
2669 case OPTION_STRIP_UNNEEDED:
2670 strip_symbols = STRIP_UNNEEDED;
2671 break;
2672 case 'K':
2673 add_specific_symbol (optarg, &keep_specific_list);
2674 break;
2675 case 'N':
2676 add_specific_symbol (optarg, &strip_specific_list);
2677 break;
2678 case 'o':
2679 output_file = optarg;
2680 break;
2681 case 'p':
b34976b6 2682 preserve_dates = TRUE;
252b5132
RH		 2683 break;
2684 case 'x':
2685 discard_locals = LOCALS_ALL;
2686 break;
2687 case 'X':
2688 discard_locals = LOCALS_START_L;
2689 break;
2690 case 'v':
b34976b6 2691 verbose = TRUE;
252b5132
RH		 2692 break;
2693 case 'V':
b34976b6 2694 show_version = TRUE;
252b5132 2695 break;
7c29036b
NC		 2696 case OPTION_FORMATS_INFO:
2697 formats_info = TRUE;
2698 break;
ed1653a7
NC		 2699 case OPTION_ONLY_KEEP_DEBUG:
2700 strip_symbols = STRIP_NONDEBUG;
2701 break;
1637cd90
JB		 2702 case OPTION_KEEP_FILE_SYMBOLS:
2703 keep_file_symbols = 1;
2704 break;
252b5132 2705 case 0:
594ef5db
NC		 2706 /* We've been given a long option. */
2707 break;
5fe11841
NC		 2708 case 'w':
2709 wildcard = TRUE;
2710 break;
8b53311e 2711 case 'H':
252b5132
RH		 2712 case 'h':
2713 strip_usage (stdout, 0);
2714 default:
2715 strip_usage (stderr, 1);
2716 }
2717 }
2718
84e2f313
NC		 2719 if (formats_info)
2720 {
2721 display_info ();
2722 return 0;
2723 }
7c29036b 2724
252b5132
RH		 2725 if (show_version)
2726 print_version ("strip");
2727
2728 /* Default is to strip all symbols. */
2729 if (strip_symbols == STRIP_UNDEF
2730 && discard_locals == LOCALS_UNDEF
2731 && strip_specific_list == NULL)
2732 strip_symbols = STRIP_ALL;
2733
d3ba0551 2734 if (output_target == NULL)
252b5132
RH		 2735 output_target = input_target;
2736
2737 i = optind;
2738 if (i == argc
2739 || (output_file != NULL && (i + 1) < argc))
2740 strip_usage (stderr, 1);
2741
2742 for (; i < argc; i++)
2743 {
2744 int hold_status = status;
2745 struct stat statbuf;
2746 char *tmpname;
2747
f24ddbdd 2748 if (get_file_size (argv[i]) < 1)
d68c385b
NC		 2749 {
2750 status = 1;
2751 continue;
2752 }
f24ddbdd 2753
252b5132 2754 if (preserve_dates)
f24ddbdd
NC		 2755 /* No need to check the return value of stat().
2756 It has already been checked in get_file_size(). */
2757 stat (argv[i], &statbuf);
252b5132 2758
12f498a7 2759 if (output_file == NULL || strcmp (argv[i], output_file) == 0)
252b5132 2760 tmpname = make_tempname (argv[i]);
12f498a7
NS		 2761 else
2762 tmpname = output_file;
252b5132 2763
f9c026a8
NC		 2764 if (tmpname == NULL)
2765 {
2766 non_fatal (_("could not create temporary file to hold stripped copy of '%s'"),
2767 argv[i]);
2768 status = 1;
2769 continue;
2770 }
2771
d68c385b 2772 status = 0;
252b5132
RH		 2773 copy_file (argv[i], tmpname, input_target, output_target);
2774 if (status == 0)
2775 {
2776 if (preserve_dates)
2777 set_times (tmpname, &statbuf);
12f498a7
NS		 2778 if (output_file != tmpname)
2779 smart_rename (tmpname, output_file ? output_file : argv[i],
2780 preserve_dates);
252b5132
RH		 2781 status = hold_status;
2782 }
2783 else
bb14f524 2784 unlink_if_ordinary (tmpname);
12f498a7 2785 if (output_file != tmpname)
252b5132
RH		 2786 free (tmpname);
2787 }
2788
d68c385b 2789 return status;
252b5132
RH		 2790}
2791
2792static int
84e2f313 2793copy_main (int argc, char *argv[])
252b5132 2794{
43a0748c 2795 char * binary_architecture = NULL;
7c29036b
NC		 2796 char *input_filename = NULL;
2797 char *output_filename = NULL;
12f498a7 2798 char *tmpname;
7c29036b
NC		 2799 char *input_target = NULL;
2800 char *output_target = NULL;
b34976b6
AM		 2801 bfd_boolean show_version = FALSE;
2802 bfd_boolean change_warn = TRUE;
7c29036b 2803 bfd_boolean formats_info = FALSE;
252b5132
RH		 2804 int c;
2805 struct section_list *p;
2806 struct stat statbuf;
2807
5fe11841 2808 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w",
252b5132
RH		 2809 copy_options, (int *) 0)) != EOF)
2810 {
2811 switch (c)
2812 {
2813 case 'b':
2814 copy_byte = atoi (optarg);
2815 if (copy_byte < 0)
2816 fatal (_("byte number must be non-negative"));
2817 break;
57938635 2818
0af11b59
KH		 2819 case 'B':
2820 binary_architecture = optarg;
2821 break;
43a0748c 2822
252b5132
RH		 2823 case 'i':
2824 interleave = atoi (optarg);
2825 if (interleave < 1)
2826 fatal (_("interleave must be positive"));
2827 break;
57938635 2828
252b5132
RH		 2829 case 'I':
2830 case 's': /* "source" - 'I' is preferred */
2831 input_target = optarg;
2832 break;
57938635 2833
252b5132
RH		 2834 case 'O':
2835 case 'd': /* "destination" - 'O' is preferred */
2836 output_target = optarg;
2837 break;
57938635 2838
252b5132
RH		 2839 case 'F':
2840 input_target = output_target = optarg;
2841 break;
57938635 2842
f91ea849 2843 case 'j':
b34976b6 2844 p = find_section_list (optarg, TRUE);
f91ea849
ILT		 2845 if (p->remove)
2846 fatal (_("%s both copied and removed"), optarg);
b34976b6
AM		 2847 p->copy = TRUE;
2848 sections_copied = TRUE;
f91ea849 2849 break;
57938635 2850
252b5132 2851 case 'R':
b34976b6 2852 p = find_section_list (optarg, TRUE);
f91ea849
ILT		 2853 if (p->copy)
2854 fatal (_("%s both copied and removed"), optarg);
b34976b6
AM		 2855 p->remove = TRUE;
2856 sections_removed = TRUE;
252b5132 2857 break;
57938635 2858
252b5132
RH		 2859 case 'S':
2860 strip_symbols = STRIP_ALL;
2861 break;
57938635 2862
252b5132
RH		 2863 case 'g':
2864 strip_symbols = STRIP_DEBUG;
2865 break;
57938635 2866
252b5132
RH		 2867 case OPTION_STRIP_UNNEEDED:
2868 strip_symbols = STRIP_UNNEEDED;
2869 break;
57938635 2870
ed1653a7
NC		 2871 case OPTION_ONLY_KEEP_DEBUG:
2872 strip_symbols = STRIP_NONDEBUG;
2873 break;
2874
1637cd90
JB		 2875 case OPTION_KEEP_FILE_SYMBOLS:
2876 keep_file_symbols = 1;
2877 break;
2878
2593f09a
NC		 2879 case OPTION_ADD_GNU_DEBUGLINK:
2880 gnu_debuglink_filename = optarg;
2881 break;
2882
252b5132
RH		 2883 case 'K':
2884 add_specific_symbol (optarg, &keep_specific_list);
2885 break;
57938635 2886
252b5132
RH		 2887 case 'N':
2888 add_specific_symbol (optarg, &strip_specific_list);
2889 break;
57938635 2890
bcf32829
JB		 2891 case OPTION_STRIP_UNNEEDED_SYMBOL:
2892 add_specific_symbol (optarg, &strip_unneeded_list);
2893 break;
2894
252b5132
RH		 2895 case 'L':
2896 add_specific_symbol (optarg, &localize_specific_list);
2897 break;
57938635 2898
7b4a0685
NC		 2899 case OPTION_GLOBALIZE_SYMBOL:
2900 add_specific_symbol (optarg, &globalize_specific_list);
2901 break;
2902
16b2b71c
NC		 2903 case 'G':
2904 add_specific_symbol (optarg, &keepglobal_specific_list);
2905 break;
2906
252b5132
RH		 2907 case 'W':
2908 add_specific_symbol (optarg, &weaken_specific_list);
2909 break;
57938635 2910
252b5132 2911 case 'p':
b34976b6 2912 preserve_dates = TRUE;
252b5132 2913 break;
57938635 2914
5fe11841
NC		 2915 case 'w':
2916 wildcard = TRUE;
2917 break;
2918
252b5132
RH		 2919 case 'x':
2920 discard_locals = LOCALS_ALL;
2921 break;
57938635 2922
252b5132
RH		 2923 case 'X':
2924 discard_locals = LOCALS_START_L;
2925 break;
57938635 2926
252b5132 2927 case 'v':
b34976b6 2928 verbose = TRUE;
252b5132 2929 break;
57938635 2930
252b5132 2931 case 'V':
b34976b6 2932 show_version = TRUE;
252b5132 2933 break;
57938635 2934
7c29036b
NC		 2935 case OPTION_FORMATS_INFO:
2936 formats_info = TRUE;
2937 break;
2938
252b5132 2939 case OPTION_WEAKEN:
b34976b6 2940 weaken = TRUE;
252b5132 2941 break;
57938635 2942
252b5132
RH		 2943 case OPTION_ADD_SECTION:
2944 {
2945 const char *s;
f24ddbdd 2946 off_t size;
252b5132
RH		 2947 struct section_add *pa;
2948 int len;
2949 char *name;
2950 FILE *f;
2951
2952 s = strchr (optarg, '=');
57938635 2953
252b5132 2954 if (s == NULL)
57938635 2955 fatal (_("bad format for %s"), "--add-section");
252b5132 2956
f24ddbdd
NC		 2957 size = get_file_size (s + 1);
2958 if (size < 1)
d68c385b
NC		 2959 {
2960 status = 1;
2961 break;
2962 }
252b5132 2963
d3ba0551 2964 pa = xmalloc (sizeof (struct section_add));
252b5132
RH		 2965
2966 len = s - optarg;
d3ba0551 2967 name = xmalloc (len + 1);
252b5132
RH		 2968 strncpy (name, optarg, len);
2969 name[len] = '\0';
2970 pa->name = name;
2971
2972 pa->filename = s + 1;
f24ddbdd
NC		 2973 pa->size = size;
2974 pa->contents = xmalloc (size);
252b5132 2975
252b5132 2976 f = fopen (pa->filename, FOPEN_RB);
57938635 2977
252b5132 2978 if (f == NULL)
84e2f313
NC		 2979 fatal (_("cannot open: %s: %s"),
2980 pa->filename, strerror (errno));
57938635 2981
252b5132
RH		 2982 if (fread (pa->contents, 1, pa->size, f) == 0
2983 || ferror (f))
2984 fatal (_("%s: fread failed"), pa->filename);
2985
2986 fclose (f);
2987
2988 pa->next = add_sections;
2989 add_sections = pa;
2990 }
2991 break;
57938635 2992
252b5132
RH		 2993 case OPTION_CHANGE_START:
2994 change_start = parse_vma (optarg, "--change-start");
2995 break;
57938635 2996
252b5132
RH		 2997 case OPTION_CHANGE_SECTION_ADDRESS:
2998 case OPTION_CHANGE_SECTION_LMA:
2999 case OPTION_CHANGE_SECTION_VMA:
3000 {
3001 const char *s;
3002 int len;
3003 char *name;
b4c96d0d 3004 char *option = NULL;
252b5132 3005 bfd_vma val;
b4c96d0d 3006 enum change_action what = CHANGE_IGNORE;
57938635 3007
252b5132
RH		 3008 switch (c)
3009 {
b4c96d0d
ILT		 3010 case OPTION_CHANGE_SECTION_ADDRESS:
3011 option = "--change-section-address";
3012 break;
3013 case OPTION_CHANGE_SECTION_LMA:
3014 option = "--change-section-lma";
3015 break;
3016 case OPTION_CHANGE_SECTION_VMA:
3017 option = "--change-section-vma";
3018 break;
252b5132 3019 }
57938635 3020
252b5132
RH		 3021 s = strchr (optarg, '=');
3022 if (s == NULL)
3023 {
3024 s = strchr (optarg, '+');
3025 if (s == NULL)
3026 {
3027 s = strchr (optarg, '-');
3028 if (s == NULL)
3029 fatal (_("bad format for %s"), option);
3030 }
3031 }
3032
3033 len = s - optarg;
d3ba0551 3034 name = xmalloc (len + 1);
252b5132
RH		 3035 strncpy (name, optarg, len);
3036 name[len] = '\0';
3037
b34976b6 3038 p = find_section_list (name, TRUE);
252b5132
RH		 3039
3040 val = parse_vma (s + 1, option);
3041
3042 switch (*s)
3043 {
3044 case '=': what = CHANGE_SET; break;
3045 case '-': val = - val; /* Drop through. */
3046 case '+': what = CHANGE_MODIFY; break;
3047 }
57938635 3048
252b5132
RH		 3049 switch (c)
3050 {
3051 case OPTION_CHANGE_SECTION_ADDRESS:
3052 p->change_vma = what;
3053 p->vma_val = val;
3054 /* Drop through. */
57938635 3055
252b5132
RH		 3056 case OPTION_CHANGE_SECTION_LMA:
3057 p->change_lma = what;
3058 p->lma_val = val;
3059 break;
57938635 3060
252b5132
RH		 3061 case OPTION_CHANGE_SECTION_VMA:
3062 p->change_vma = what;
3063 p->vma_val = val;
3064 break;
3065 }
3066 }
3067 break;
57938635 3068
252b5132
RH		 3069 case OPTION_CHANGE_ADDRESSES:
3070 change_section_address = parse_vma (optarg, "--change-addresses");
3071 change_start = change_section_address;
3072 break;
57938635 3073
252b5132 3074 case OPTION_CHANGE_WARNINGS:
b34976b6 3075 change_warn = TRUE;
252b5132 3076 break;
57938635 3077
252b5132 3078 case OPTION_CHANGE_LEADING_CHAR:
b34976b6 3079 change_leading_char = TRUE;
252b5132 3080 break;
57938635 3081
252b5132 3082 case OPTION_DEBUGGING:
b34976b6 3083 convert_debugging = TRUE;
252b5132 3084 break;
57938635 3085
252b5132
RH		 3086 case OPTION_GAP_FILL:
3087 {
3088 bfd_vma gap_fill_vma;
3089
3090 gap_fill_vma = parse_vma (optarg, "--gap-fill");
3091 gap_fill = (bfd_byte) gap_fill_vma;
3092 if ((bfd_vma) gap_fill != gap_fill_vma)
3093 {
3094 char buff[20];
57938635 3095
252b5132 3096 sprintf_vma (buff, gap_fill_vma);
57938635 3097
252b5132
RH		 3098 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
3099 buff, gap_fill);
3100 }
b34976b6 3101 gap_fill_set = TRUE;
252b5132
RH		 3102 }
3103 break;
57938635 3104
252b5132 3105 case OPTION_NO_CHANGE_WARNINGS:
b34976b6 3106 change_warn = FALSE;
252b5132 3107 break;
57938635 3108
252b5132
RH		 3109 case OPTION_PAD_TO:
3110 pad_to = parse_vma (optarg, "--pad-to");
b34976b6 3111 pad_to_set = TRUE;
252b5132 3112 break;
57938635 3113
252b5132 3114 case OPTION_REMOVE_LEADING_CHAR:
b34976b6 3115 remove_leading_char = TRUE;
252b5132 3116 break;
57938635
AM		 3117
3118 case OPTION_REDEFINE_SYM:
3119 {
3120 /* Push this redefinition onto redefine_symbol_list. */
3121
3122 int len;
3123 const char *s;
3124 const char *nextarg;
3125 char *source, *target;
3126
3127 s = strchr (optarg, '=');
3128 if (s == NULL)
594ef5db 3129 fatal (_("bad format for %s"), "--redefine-sym");
57938635
AM		 3130
3131 len = s - optarg;
d3ba0551 3132 source = xmalloc (len + 1);
57938635
AM		 3133 strncpy (source, optarg, len);
3134 source[len] = '\0';
3135
3136 nextarg = s + 1;
3137 len = strlen (nextarg);
d3ba0551 3138 target = xmalloc (len + 1);
57938635
AM		 3139 strcpy (target, nextarg);
3140
92991082 3141 redefine_list_append ("--redefine-sym", source, target);
57938635
AM		 3142
3143 free (source);
3144 free (target);
3145 }
3146 break;
3147
92991082
JT		 3148 case OPTION_REDEFINE_SYMS:
3149 add_redefine_syms_file (optarg);
3150 break;
3151
252b5132
RH		 3152 case OPTION_SET_SECTION_FLAGS:
3153 {
3154 const char *s;
3155 int len;
3156 char *name;
3157
3158 s = strchr (optarg, '=');
3159 if (s == NULL)
57938635 3160 fatal (_("bad format for %s"), "--set-section-flags");
252b5132
RH		 3161
3162 len = s - optarg;
d3ba0551 3163 name = xmalloc (len + 1);
252b5132
RH		 3164 strncpy (name, optarg, len);
3165 name[len] = '\0';
3166
b34976b6 3167 p = find_section_list (name, TRUE);
252b5132 3168
b34976b6 3169 p->set_flags = TRUE;
252b5132
RH		 3170 p->flags = parse_flags (s + 1);
3171 }
3172 break;
57938635 3173
594ef5db
NC		 3174 case OPTION_RENAME_SECTION:
3175 {
3176 flagword flags;
3bcfb3e4
AM		 3177 const char *eq, *fl;
3178 char *old_name;
3179 char *new_name;
594ef5db
NC		 3180 unsigned int len;
3181
3bcfb3e4
AM		 3182 eq = strchr (optarg, '=');
3183 if (eq == NULL)
594ef5db
NC		 3184 fatal (_("bad format for %s"), "--rename-section");
3185
3bcfb3e4 3186 len = eq - optarg;
594ef5db 3187 if (len == 0)
3bcfb3e4 3188 fatal (_("bad format for %s"), "--rename-section");
594ef5db 3189
d3ba0551 3190 old_name = xmalloc (len + 1);
594ef5db
NC		 3191 strncpy (old_name, optarg, len);
3192 old_name[len] = 0;
3193
3bcfb3e4
AM		 3194 eq++;
3195 fl = strchr (eq, ',');
3196 if (fl)
594ef5db 3197 {
3bcfb3e4
AM		 3198 flags = parse_flags (fl + 1);
3199 len = fl - eq;
594ef5db
NC		 3200 }
3201 else
3202 {
594ef5db 3203 flags = -1;
3bcfb3e4 3204 len = strlen (eq);
594ef5db
NC		 3205 }
3206
3bcfb3e4
AM		 3207 if (len == 0)
3208 fatal (_("bad format for %s"), "--rename-section");
3209
d3ba0551 3210 new_name = xmalloc (len + 1);
3bcfb3e4
AM		 3211 strncpy (new_name, eq, len);
3212 new_name[len] = 0;
3213
594ef5db
NC		 3214 add_section_rename (old_name, new_name, flags);
3215 }
3216 break;
3217
252b5132
RH		 3218 case OPTION_SET_START:
3219 set_start = parse_vma (optarg, "--set-start");
b34976b6 3220 set_start_set = TRUE;
252b5132 3221 break;
57938635 3222
0af11b59
KH		 3223 case OPTION_SREC_LEN:
3224 Chunk = parse_vma (optarg, "--srec-len");
3225 break;
420496c1 3226
0af11b59 3227 case OPTION_SREC_FORCES3:
b34976b6 3228 S3Forced = TRUE;
0af11b59 3229 break;
420496c1 3230
16b2b71c
NC		 3231 case OPTION_STRIP_SYMBOLS:
3232 add_specific_symbols (optarg, &strip_specific_list);
3233 break;
3234
bcf32829
JB		 3235 case OPTION_STRIP_UNNEEDED_SYMBOLS:
3236 add_specific_symbols (optarg, &strip_unneeded_list);
3237 break;
3238
16b2b71c
NC		 3239 case OPTION_KEEP_SYMBOLS:
3240 add_specific_symbols (optarg, &keep_specific_list);
3241 break;
3242
d58c2e3a
RS		 3243 case OPTION_LOCALIZE_HIDDEN:
3244 localize_hidden = TRUE;
3245 break;
3246
16b2b71c
NC		 3247 case OPTION_LOCALIZE_SYMBOLS:
3248 add_specific_symbols (optarg, &localize_specific_list);
3249 break;
3250
7b4a0685
NC		 3251 case OPTION_GLOBALIZE_SYMBOLS:
3252 add_specific_symbols (optarg, &globalize_specific_list);
3253 break;
3254
16b2b71c
NC		 3255 case OPTION_KEEPGLOBAL_SYMBOLS:
3256 add_specific_symbols (optarg, &keepglobal_specific_list);
3257 break;
3258
3259 case OPTION_WEAKEN_SYMBOLS:
3260 add_specific_symbols (optarg, &weaken_specific_list);
3261 break;
3262
1ae8b3d2 3263 case OPTION_ALT_MACH_CODE:
f9d4ad2a
NC		 3264 use_alt_mach_code = strtoul (optarg, NULL, 0);
3265 if (use_alt_mach_code == 0)
3266 fatal (_("unable to parse alternative machine code"));
1ae8b3d2
AO		 3267 break;
3268
d7fb0dd2
NC		 3269 case OPTION_PREFIX_SYMBOLS:
3270 prefix_symbols_string = optarg;
3271 break;
3272
3273 case OPTION_PREFIX_SECTIONS:
3274 prefix_sections_string = optarg;
3275 break;
3276
3277 case OPTION_PREFIX_ALLOC_SECTIONS:
3278 prefix_alloc_sections_string = optarg;
3279 break;
3280
4087920c
MR		 3281 case OPTION_READONLY_TEXT:
3282 bfd_flags_to_set |= WP_TEXT;
3283 bfd_flags_to_clear &= ~WP_TEXT;
3284 break;
3285
3286 case OPTION_WRITABLE_TEXT:
3287 bfd_flags_to_clear |= WP_TEXT;
3288 bfd_flags_to_set &= ~WP_TEXT;
3289 break;
3290
3291 case OPTION_PURE:
3292 bfd_flags_to_set |= D_PAGED;
3293 bfd_flags_to_clear &= ~D_PAGED;
3294 break;
3295
3296 case OPTION_IMPURE:
3297 bfd_flags_to_clear |= D_PAGED;
3298 bfd_flags_to_set &= ~D_PAGED;
3299 break;
3300
d3e52d40
RS		 3301 case OPTION_EXTRACT_SYMBOL:
3302 extract_symbol = TRUE;
3303 break;
3304
9e48b4c6
NC		 3305 case OPTION_REVERSE_BYTES:
3306 {
3307 int prev = reverse_bytes;
3308
3309 reverse_bytes = atoi (optarg);
3310 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
3311 fatal (_("number of bytes to reverse must be positive and even"));
3312
3313 if (prev && prev != reverse_bytes)
3314 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
3315 prev);
3316 break;
3317 }
3318
252b5132 3319 case 0:
2593f09a
NC		 3320 /* We've been given a long option. */
3321 break;
57938635 3322
8b53311e 3323 case 'H':
252b5132
RH		 3324 case 'h':
3325 copy_usage (stdout, 0);
57938635 3326
252b5132
RH		 3327 default:
3328 copy_usage (stderr, 1);
3329 }
3330 }
3331
7c29036b
NC		 3332 if (formats_info)
3333 {
3334 display_info ();
3335 return 0;
3336 }
3337
252b5132
RH		 3338 if (show_version)
3339 print_version ("objcopy");
3340
3341 if (copy_byte >= interleave)
3342 fatal (_("byte number must be less than interleave"));
3343
3344 if (optind == argc || optind + 2 < argc)
3345 copy_usage (stderr, 1);
3346
3347 input_filename = argv[optind];
3348 if (optind + 1 < argc)
3349 output_filename = argv[optind + 1];
3350
3351 /* Default is to strip no symbols. */
3352 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
3353 strip_symbols = STRIP_NONE;
3354
d3ba0551 3355 if (output_target == NULL)
252b5132
RH		 3356 output_target = input_target;
3357
d3ba0551 3358 if (binary_architecture != NULL)
252b5132 3359 {
43a0748c 3360 if (input_target && strcmp (input_target, "binary") == 0)
0af11b59
KH		 3361 {
3362 const bfd_arch_info_type * temp_arch_info;
43a0748c
NC		 3363
3364 temp_arch_info = bfd_scan_arch (binary_architecture);
3365
0af11b59 3366 if (temp_arch_info != NULL)
b749473b
NC		 3367 {
3368 bfd_external_binary_architecture = temp_arch_info->arch;
3369 bfd_external_machine = temp_arch_info->mach;
3370 }
0af11b59
KH		 3371 else
3372 fatal (_("architecture %s unknown"), binary_architecture);
3373 }
43a0748c
NC		 3374 else
3375 {
3376 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
3377 non_fatal (_(" Argument %s ignored"), binary_architecture);
3378 }
252b5132
RH		 3379 }
3380
43a0748c
NC		 3381 if (preserve_dates)
3382 if (stat (input_filename, & statbuf) < 0)
f24ddbdd
NC		 3383 fatal (_("warning: could not locate '%s'. System error message: %s"),
3384 input_filename, strerror (errno));
43a0748c 3385
0fcdcb91 3386 /* If there is no destination file, or the source and destination files
d3ba0551
AM		 3387 are the same, then create a temp and rename the result into the input. */
3388 if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
12f498a7 3389 tmpname = make_tempname (input_filename);
252b5132 3390 else
12f498a7
NS		 3391 tmpname = output_filename;
3392
3393 if (tmpname == NULL)
3394 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
3395 input_filename, strerror (errno));
594ef5db 3396
12f498a7
NS		 3397 copy_file (input_filename, tmpname, input_target, output_target);
3398 if (status == 0)
3399 {
3400 if (preserve_dates)
3401 set_times (tmpname, &statbuf);
3402 if (tmpname != output_filename)
3403 smart_rename (tmpname, input_filename, preserve_dates);
252b5132 3404 }
12f498a7
NS		 3405 else
3406 unlink_if_ordinary (tmpname);
252b5132
RH		 3407
3408 if (change_warn)
3409 {
3410 for (p = change_sections; p != NULL; p = p->next)
3411 {
3412 if (! p->used)
3413 {
3414 if (p->change_vma != CHANGE_IGNORE)
3415 {
3416 char buff [20];
3417
3418 sprintf_vma (buff, p->vma_val);
57938635 3419
252b5132 3420 /* xgettext:c-format */
57938635
AM		 3421 non_fatal (_("%s %s%c0x%s never used"),
3422 "--change-section-vma",
252b5132
RH		 3423 p->name,
3424 p->change_vma == CHANGE_SET ? '=' : '+',
3425 buff);
3426 }
57938635 3427
252b5132
RH		 3428 if (p->change_lma != CHANGE_IGNORE)
3429 {
3430 char buff [20];
3431
3432 sprintf_vma (buff, p->lma_val);
57938635 3433
252b5132 3434 /* xgettext:c-format */
57938635
AM		 3435 non_fatal (_("%s %s%c0x%s never used"),
3436 "--change-section-lma",
252b5132
RH		 3437 p->name,
3438 p->change_lma == CHANGE_SET ? '=' : '+',
3439 buff);
3440 }
3441 }
3442 }
3443 }
3444
3445 return 0;
3446}
3447
3448int
84e2f313 3449main (int argc, char *argv[])
252b5132
RH		 3450{
3451#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3452 setlocale (LC_MESSAGES, "");
3882b010
L		 3453#endif
3454#if defined (HAVE_SETLOCALE)
3455 setlocale (LC_CTYPE, "");
252b5132
RH		 3456#endif
3457 bindtextdomain (PACKAGE, LOCALEDIR);
3458 textdomain (PACKAGE);
3459
3460 program_name = argv[0];
3461 xmalloc_set_program_name (program_name);
3462
3463 START_PROGRESS (program_name, 0);
3464
869b9d07
MM		 3465 expandargv (&argc, &argv);
3466
252b5132
RH		 3467 strip_symbols = STRIP_UNDEF;
3468 discard_locals = LOCALS_UNDEF;
3469
3470 bfd_init ();
3471 set_default_bfd_target ();
3472
3473 if (is_strip < 0)
3474 {
3475 int i = strlen (program_name);
5af11cab
AM		 3476#ifdef HAVE_DOS_BASED_FILE_SYSTEM
3477 /* Drop the .exe suffix, if any. */
3478 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
3479 {
3480 i -= 4;
3481 program_name[i] = '\0';
3482 }
3483#endif
3484 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
252b5132
RH		 3485 }
3486
3487 if (is_strip)
3488 strip_main (argc, argv);
3489 else
3490 copy_main (argc, argv);
3491
3492 END_PROGRESS (program_name);
3493
3494 return status;
3495}
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