1 /* Parse options for the GNU linker.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
6 This file is part of the GNU Binutils.
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 3 of the License, or
11 (at your option) any later version.
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.
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
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
26 #include "libiberty.h"
29 #include "safe-ctype.h"
45 #endif /* ENABLE_PLUGINS */
47 #ifndef PATH_SEPARATOR
48 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
49 #define PATH_SEPARATOR ';'
51 #define PATH_SEPARATOR ':'
55 /* Somewhere above, sys/stat.h got included . . . . */
56 #if !defined(S_ISDIR) && defined(S_IFDIR)
57 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
60 static void set_default_dirlist (char *);
61 static void set_section_start (char *, char *);
62 static void set_segment_start (const char *, char *);
63 static void help (void);
65 /* Non-zero if we are processing a --defsym from the command line. */
66 int parsing_defsym
= 0;
68 /* Codes used for the long options with no short synonyms. 150 isn't
69 special; it's just an arbitrary non-ASCII char value. */
77 OPTION_DYNAMIC_LINKER
,
81 OPTION_EMBEDDED_RELOCS
,
82 OPTION_EXPORT_DYNAMIC
,
83 OPTION_NO_EXPORT_DYNAMIC
,
88 OPTION_NO_KEEP_MEMORY
,
89 OPTION_NO_WARN_MISMATCH
,
90 OPTION_NO_WARN_SEARCH_MISMATCH
,
91 OPTION_NOINHIBIT_EXEC
,
93 OPTION_NO_WHOLE_ARCHIVE
,
97 OPTION_RETAIN_SYMBOLS_FILE
,
106 OPTION_SYMBOLIC_FUNCTIONS
,
111 OPTION_TTEXT_SEGMENT
,
112 OPTION_TRADITIONAL_FORMAT
,
116 OPTION_VERSION_SCRIPT
,
117 OPTION_VERSION_EXPORTS_SECTION
,
119 OPTION_DYNAMIC_LIST_CPP_NEW
,
120 OPTION_DYNAMIC_LIST_CPP_TYPEINFO
,
121 OPTION_DYNAMIC_LIST_DATA
,
123 OPTION_WARN_CONSTRUCTORS
,
125 OPTION_NO_WARN_FATAL
,
126 OPTION_WARN_MULTIPLE_GP
,
128 OPTION_WARN_SECTION_ALIGN
,
129 OPTION_SPLIT_BY_RELOC
,
130 OPTION_SPLIT_BY_FILE
,
131 OPTION_WHOLE_ARCHIVE
,
132 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
,
133 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
,
134 OPTION_ADD_DT_NEEDED_FOR_REGULAR
,
135 OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
,
137 OPTION_FORCE_EXE_SUFFIX
,
139 OPTION_NO_GC_SECTIONS
,
140 OPTION_PRINT_GC_SECTIONS
,
141 OPTION_NO_PRINT_GC_SECTIONS
,
143 OPTION_CHECK_SECTIONS
,
144 OPTION_NO_CHECK_SECTIONS
,
148 OPTION_SECTION_START
,
151 OPTION_ALLOW_SHLIB_UNDEFINED
,
152 OPTION_NO_ALLOW_SHLIB_UNDEFINED
,
153 OPTION_ALLOW_MULTIPLE_DEFINITION
,
154 OPTION_NO_UNDEFINED_VERSION
,
155 OPTION_DEFAULT_SYMVER
,
156 OPTION_DEFAULT_IMPORTED_SYMVER
,
158 OPTION_SPARE_DYNAMIC_TAGS
,
159 OPTION_NO_DEFINE_COMMON
,
162 OPTION_STRIP_DISCARDED
,
163 OPTION_NO_STRIP_DISCARDED
,
164 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
,
165 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
,
167 OPTION_UNRESOLVED_SYMBOLS
,
168 OPTION_WARN_UNRESOLVED_SYMBOLS
,
169 OPTION_ERROR_UNRESOLVED_SYMBOLS
,
170 OPTION_WARN_SHARED_TEXTREL
,
171 OPTION_WARN_ALTERNATE_EM
,
172 OPTION_REDUCE_MEMORY_OVERHEADS
,
173 #ifdef ENABLE_PLUGINS
176 #endif /* ENABLE_PLUGINS */
177 OPTION_DEFAULT_SCRIPT
,
180 /* The long options. This structure is used for both the option
181 parsing and the help text. */
184 /* Use one dash before long option name. */
186 /* Use two dashes before long option name. */
188 /* Only accept two dashes before the long option name.
189 This is an overloading of the use of this enum, since originally it
190 was only intended to tell the --help display function how to display
191 the long option name. This feature was added in order to resolve
192 the confusion about the -omagic command line switch. Is it setting
193 the output file name to "magic" or is it setting the NMAGIC flag on
194 the output ? It has been decided that it is setting the output file
195 name, and that if you want to set the NMAGIC flag you should use -N
198 /* Don't mention this option in --help output. */
204 /* The long option information. */
206 /* The short option with the same meaning ('\0' if none). */
208 /* The name of the argument (NULL if none). */
210 /* The documentation string. If this is NULL, this is a synonym for
211 the previous option. */
213 enum control_enum control
;
216 static const struct ld_option ld_options
[] =
218 { {NULL
, required_argument
, NULL
, '\0'},
219 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
221 { {"architecture", required_argument
, NULL
, 'A'},
222 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES
},
223 { {"format", required_argument
, NULL
, 'b'},
224 'b', N_("TARGET"), N_("Specify target for following input files"),
226 { {"mri-script", required_argument
, NULL
, 'c'},
227 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES
},
228 { {"dc", no_argument
, NULL
, 'd'},
229 'd', NULL
, N_("Force common symbols to be defined"), ONE_DASH
},
230 { {"dp", no_argument
, NULL
, 'd'},
231 '\0', NULL
, NULL
, ONE_DASH
},
232 { {"entry", required_argument
, NULL
, 'e'},
233 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES
},
234 { {"export-dynamic", no_argument
, NULL
, OPTION_EXPORT_DYNAMIC
},
235 'E', NULL
, N_("Export all dynamic symbols"), TWO_DASHES
},
236 { {"no-export-dynamic", no_argument
, NULL
, OPTION_NO_EXPORT_DYNAMIC
},
237 '\0', NULL
, N_("Undo the effect of --export-dynamic"), TWO_DASHES
},
238 { {"EB", no_argument
, NULL
, OPTION_EB
},
239 '\0', NULL
, N_("Link big-endian objects"), ONE_DASH
},
240 { {"EL", no_argument
, NULL
, OPTION_EL
},
241 '\0', NULL
, N_("Link little-endian objects"), ONE_DASH
},
242 { {"auxiliary", required_argument
, NULL
, 'f'},
243 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
245 { {"filter", required_argument
, NULL
, 'F'},
246 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
248 { {NULL
, no_argument
, NULL
, '\0'},
249 'g', NULL
, N_("Ignored"), ONE_DASH
},
250 { {"gpsize", required_argument
, NULL
, 'G'},
251 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
253 { {"soname", required_argument
, NULL
, OPTION_SONAME
},
254 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH
},
255 { {"dynamic-linker", required_argument
, NULL
, OPTION_DYNAMIC_LINKER
},
256 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
258 { {"library", required_argument
, NULL
, 'l'},
259 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES
},
260 { {"library-path", required_argument
, NULL
, 'L'},
261 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
263 { {"sysroot=<DIRECTORY>", required_argument
, NULL
, OPTION_SYSROOT
},
264 '\0', NULL
, N_("Override the default sysroot location"), TWO_DASHES
},
265 { {NULL
, required_argument
, NULL
, '\0'},
266 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH
},
267 { {"print-map", no_argument
, NULL
, 'M'},
268 'M', NULL
, N_("Print map file on standard output"), TWO_DASHES
},
269 { {"nmagic", no_argument
, NULL
, 'n'},
270 'n', NULL
, N_("Do not page align data"), TWO_DASHES
},
271 { {"omagic", no_argument
, NULL
, 'N'},
272 'N', NULL
, N_("Do not page align data, do not make text readonly"),
273 EXACTLY_TWO_DASHES
},
274 { {"no-omagic", no_argument
, NULL
, OPTION_NO_OMAGIC
},
275 '\0', NULL
, N_("Page align data, make text readonly"),
276 EXACTLY_TWO_DASHES
},
277 { {"output", required_argument
, NULL
, 'o'},
278 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES
},
279 { {NULL
, required_argument
, NULL
, '\0'},
280 'O', NULL
, N_("Optimize output file"), ONE_DASH
},
281 #ifdef ENABLE_PLUGINS
282 { {"plugin", required_argument
, NULL
, OPTION_PLUGIN
},
283 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH
},
284 { {"plugin-opt", required_argument
, NULL
, OPTION_PLUGIN_OPT
},
285 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH
},
286 #endif /* ENABLE_PLUGINS */
287 { {"Qy", no_argument
, NULL
, OPTION_IGNORE
},
288 '\0', NULL
, N_("Ignored for SVR4 compatibility"), ONE_DASH
},
289 { {"emit-relocs", no_argument
, NULL
, 'q'},
290 'q', NULL
, "Generate relocations in final output", TWO_DASHES
},
291 { {"relocatable", no_argument
, NULL
, 'r'},
292 'r', NULL
, N_("Generate relocatable output"), TWO_DASHES
},
293 { {NULL
, no_argument
, NULL
, '\0'},
294 'i', NULL
, NULL
, ONE_DASH
},
295 { {"just-symbols", required_argument
, NULL
, 'R'},
296 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
298 { {"strip-all", no_argument
, NULL
, 's'},
299 's', NULL
, N_("Strip all symbols"), TWO_DASHES
},
300 { {"strip-debug", no_argument
, NULL
, 'S'},
301 'S', NULL
, N_("Strip debugging symbols"), TWO_DASHES
},
302 { {"strip-discarded", no_argument
, NULL
, OPTION_STRIP_DISCARDED
},
303 '\0', NULL
, N_("Strip symbols in discarded sections"), TWO_DASHES
},
304 { {"no-strip-discarded", no_argument
, NULL
, OPTION_NO_STRIP_DISCARDED
},
305 '\0', NULL
, N_("Do not strip symbols in discarded sections"), TWO_DASHES
},
306 { {"trace", no_argument
, NULL
, 't'},
307 't', NULL
, N_("Trace file opens"), TWO_DASHES
},
308 { {"script", required_argument
, NULL
, 'T'},
309 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES
},
310 { {"default-script", required_argument
, NULL
, OPTION_DEFAULT_SCRIPT
},
311 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES
},
312 { {"dT", required_argument
, NULL
, OPTION_DEFAULT_SCRIPT
},
313 '\0', NULL
, NULL
, ONE_DASH
},
314 { {"undefined", required_argument
, NULL
, 'u'},
315 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
317 { {"unique", optional_argument
, NULL
, OPTION_UNIQUE
},
318 '\0', N_("[=SECTION]"),
319 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES
},
320 { {"Ur", no_argument
, NULL
, OPTION_UR
},
321 '\0', NULL
, N_("Build global constructor/destructor tables"), ONE_DASH
},
322 { {"version", no_argument
, NULL
, OPTION_VERSION
},
323 'v', NULL
, N_("Print version information"), TWO_DASHES
},
324 { {NULL
, no_argument
, NULL
, '\0'},
325 'V', NULL
, N_("Print version and emulation information"), ONE_DASH
},
326 { {"discard-all", no_argument
, NULL
, 'x'},
327 'x', NULL
, N_("Discard all local symbols"), TWO_DASHES
},
328 { {"discard-locals", no_argument
, NULL
, 'X'},
329 'X', NULL
, N_("Discard temporary local symbols (default)"), TWO_DASHES
},
330 { {"discard-none", no_argument
, NULL
, OPTION_DISCARD_NONE
},
331 '\0', NULL
, N_("Don't discard any local symbols"), TWO_DASHES
},
332 { {"trace-symbol", required_argument
, NULL
, 'y'},
333 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES
},
334 { {NULL
, required_argument
, NULL
, '\0'},
335 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
337 { {"start-group", no_argument
, NULL
, '('},
338 '(', NULL
, N_("Start a group"), TWO_DASHES
},
339 { {"end-group", no_argument
, NULL
, ')'},
340 ')', NULL
, N_("End a group"), TWO_DASHES
},
341 { {"accept-unknown-input-arch", no_argument
, NULL
,
342 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
},
344 N_("Accept input files whose architecture cannot be determined"),
346 { {"no-accept-unknown-input-arch", no_argument
, NULL
,
347 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
},
348 '\0', NULL
, N_("Reject input files whose architecture is unknown"),
351 /* The next two options are deprecated because of their similarity to
352 --as-needed and --no-as-needed. They have been replaced by
353 --resolve-implicit-dynamic-symbols and
354 --no-resolve-implicit-dynamic-symbols. */
355 { {"add-needed", no_argument
, NULL
, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
},
356 '\0', NULL
, NULL
, NO_HELP
},
357 { {"no-add-needed", no_argument
, NULL
, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
},
358 '\0', NULL
, NULL
, NO_HELP
},
360 { {"as-needed", no_argument
, NULL
, OPTION_ADD_DT_NEEDED_FOR_REGULAR
},
361 '\0', NULL
, N_("Only set DT_NEEDED for following dynamic libs if used"),
363 { {"no-as-needed", no_argument
, NULL
, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
},
364 '\0', NULL
, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
365 " the command line"),
367 { {"assert", required_argument
, NULL
, OPTION_ASSERT
},
368 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH
},
369 { {"Bdynamic", no_argument
, NULL
, OPTION_CALL_SHARED
},
370 '\0', NULL
, N_("Link against shared libraries"), ONE_DASH
},
371 { {"dy", no_argument
, NULL
, OPTION_CALL_SHARED
},
372 '\0', NULL
, NULL
, ONE_DASH
},
373 { {"call_shared", no_argument
, NULL
, OPTION_CALL_SHARED
},
374 '\0', NULL
, NULL
, ONE_DASH
},
375 { {"Bstatic", no_argument
, NULL
, OPTION_NON_SHARED
},
376 '\0', NULL
, N_("Do not link against shared libraries"), ONE_DASH
},
377 { {"dn", no_argument
, NULL
, OPTION_NON_SHARED
},
378 '\0', NULL
, NULL
, ONE_DASH
},
379 { {"non_shared", no_argument
, NULL
, OPTION_NON_SHARED
},
380 '\0', NULL
, NULL
, ONE_DASH
},
381 { {"static", no_argument
, NULL
, OPTION_NON_SHARED
},
382 '\0', NULL
, NULL
, ONE_DASH
},
383 { {"Bsymbolic", no_argument
, NULL
, OPTION_SYMBOLIC
},
384 '\0', NULL
, N_("Bind global references locally"), ONE_DASH
},
385 { {"Bsymbolic-functions", no_argument
, NULL
, OPTION_SYMBOLIC_FUNCTIONS
},
386 '\0', NULL
, N_("Bind global function references locally"), ONE_DASH
},
387 { {"check-sections", no_argument
, NULL
, OPTION_CHECK_SECTIONS
},
388 '\0', NULL
, N_("Check section addresses for overlaps (default)"),
390 { {"no-check-sections", no_argument
, NULL
, OPTION_NO_CHECK_SECTIONS
},
391 '\0', NULL
, N_("Do not check section addresses for overlaps"),
393 { {"copy-dt-needed-entries", no_argument
, NULL
,
394 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
},
395 '\0', NULL
, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
397 { {"no-copy-dt-needed-entries", no_argument
, NULL
,
398 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
},
399 '\0', NULL
, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
402 { {"cref", no_argument
, NULL
, OPTION_CREF
},
403 '\0', NULL
, N_("Output cross reference table"), TWO_DASHES
},
404 { {"defsym", required_argument
, NULL
, OPTION_DEFSYM
},
405 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES
},
406 { {"demangle", optional_argument
, NULL
, OPTION_DEMANGLE
},
407 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
409 { {"embedded-relocs", no_argument
, NULL
, OPTION_EMBEDDED_RELOCS
},
410 '\0', NULL
, N_("Generate embedded relocs"), TWO_DASHES
},
411 { {"fatal-warnings", no_argument
, NULL
, OPTION_WARN_FATAL
},
412 '\0', NULL
, N_("Treat warnings as errors"),
414 { {"no-fatal-warnings", no_argument
, NULL
, OPTION_NO_WARN_FATAL
},
415 '\0', NULL
, N_("Do not treat warnings as errors (default)"),
417 { {"fini", required_argument
, NULL
, OPTION_FINI
},
418 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH
},
419 { {"force-exe-suffix", no_argument
, NULL
, OPTION_FORCE_EXE_SUFFIX
},
420 '\0', NULL
, N_("Force generation of file with .exe suffix"), TWO_DASHES
},
421 { {"gc-sections", no_argument
, NULL
, OPTION_GC_SECTIONS
},
422 '\0', NULL
, N_("Remove unused sections (on some targets)"),
424 { {"no-gc-sections", no_argument
, NULL
, OPTION_NO_GC_SECTIONS
},
425 '\0', NULL
, N_("Don't remove unused sections (default)"),
427 { {"print-gc-sections", no_argument
, NULL
, OPTION_PRINT_GC_SECTIONS
},
428 '\0', NULL
, N_("List removed unused sections on stderr"),
430 { {"no-print-gc-sections", no_argument
, NULL
, OPTION_NO_PRINT_GC_SECTIONS
},
431 '\0', NULL
, N_("Do not list removed unused sections"),
433 { {"hash-size=<NUMBER>", required_argument
, NULL
, OPTION_HASH_SIZE
},
434 '\0', NULL
, N_("Set default hash table size close to <NUMBER>"),
436 { {"help", no_argument
, NULL
, OPTION_HELP
},
437 '\0', NULL
, N_("Print option help"), TWO_DASHES
},
438 { {"init", required_argument
, NULL
, OPTION_INIT
},
439 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH
},
440 { {"Map", required_argument
, NULL
, OPTION_MAP
},
441 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH
},
442 { {"no-define-common", no_argument
, NULL
, OPTION_NO_DEFINE_COMMON
},
443 '\0', NULL
, N_("Do not define Common storage"), TWO_DASHES
},
444 { {"no-demangle", no_argument
, NULL
, OPTION_NO_DEMANGLE
},
445 '\0', NULL
, N_("Do not demangle symbol names"), TWO_DASHES
},
446 { {"no-keep-memory", no_argument
, NULL
, OPTION_NO_KEEP_MEMORY
},
447 '\0', NULL
, N_("Use less memory and more disk I/O"), TWO_DASHES
},
448 { {"no-undefined", no_argument
, NULL
, OPTION_NO_UNDEFINED
},
449 '\0', NULL
, N_("Do not allow unresolved references in object files"),
451 { {"allow-shlib-undefined", no_argument
, NULL
, OPTION_ALLOW_SHLIB_UNDEFINED
},
452 '\0', NULL
, N_("Allow unresolved references in shared libaries"),
454 { {"no-allow-shlib-undefined", no_argument
, NULL
,
455 OPTION_NO_ALLOW_SHLIB_UNDEFINED
},
456 '\0', NULL
, N_("Do not allow unresolved references in shared libs"),
458 { {"allow-multiple-definition", no_argument
, NULL
,
459 OPTION_ALLOW_MULTIPLE_DEFINITION
},
460 '\0', NULL
, N_("Allow multiple definitions"), TWO_DASHES
},
461 { {"no-undefined-version", no_argument
, NULL
, OPTION_NO_UNDEFINED_VERSION
},
462 '\0', NULL
, N_("Disallow undefined version"), TWO_DASHES
},
463 { {"default-symver", no_argument
, NULL
, OPTION_DEFAULT_SYMVER
},
464 '\0', NULL
, N_("Create default symbol version"), TWO_DASHES
},
465 { {"default-imported-symver", no_argument
, NULL
,
466 OPTION_DEFAULT_IMPORTED_SYMVER
},
467 '\0', NULL
, N_("Create default symbol version for imported symbols"),
469 { {"no-warn-mismatch", no_argument
, NULL
, OPTION_NO_WARN_MISMATCH
},
470 '\0', NULL
, N_("Don't warn about mismatched input files"), TWO_DASHES
},
471 { {"no-warn-search-mismatch", no_argument
, NULL
,
472 OPTION_NO_WARN_SEARCH_MISMATCH
},
473 '\0', NULL
, N_("Don't warn on finding an incompatible library"),
475 { {"no-whole-archive", no_argument
, NULL
, OPTION_NO_WHOLE_ARCHIVE
},
476 '\0', NULL
, N_("Turn off --whole-archive"), TWO_DASHES
},
477 { {"noinhibit-exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
478 '\0', NULL
, N_("Create an output file even if errors occur"),
480 { {"noinhibit_exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
481 '\0', NULL
, NULL
, NO_HELP
},
482 { {"nostdlib", no_argument
, NULL
, OPTION_NOSTDLIB
},
483 '\0', NULL
, N_("Only use library directories specified on\n"
484 " the command line"),
486 { {"oformat", required_argument
, NULL
, OPTION_OFORMAT
},
487 '\0', N_("TARGET"), N_("Specify target of output file"),
488 EXACTLY_TWO_DASHES
},
489 { {"qmagic", no_argument
, NULL
, OPTION_IGNORE
},
490 '\0', NULL
, N_("Ignored for Linux compatibility"), ONE_DASH
},
491 { {"reduce-memory-overheads", no_argument
, NULL
,
492 OPTION_REDUCE_MEMORY_OVERHEADS
},
493 '\0', NULL
, N_("Reduce memory overheads, possibly taking much longer"),
495 { {"relax", no_argument
, NULL
, OPTION_RELAX
},
496 '\0', NULL
, N_("Reduce code size by using target specific optimizations"), TWO_DASHES
},
497 { {"no-relax", no_argument
, NULL
, OPTION_NO_RELAX
},
498 '\0', NULL
, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES
},
499 { {"retain-symbols-file", required_argument
, NULL
,
500 OPTION_RETAIN_SYMBOLS_FILE
},
501 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES
},
502 { {"rpath", required_argument
, NULL
, OPTION_RPATH
},
503 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH
},
504 { {"rpath-link", required_argument
, NULL
, OPTION_RPATH_LINK
},
505 '\0', N_("PATH"), N_("Set link time shared library search path"),
507 { {"shared", no_argument
, NULL
, OPTION_SHARED
},
508 '\0', NULL
, N_("Create a shared library"), ONE_DASH
},
509 { {"Bshareable", no_argument
, NULL
, OPTION_SHARED
}, /* FreeBSD. */
510 '\0', NULL
, NULL
, ONE_DASH
},
511 { {"pie", no_argument
, NULL
, OPTION_PIE
},
512 '\0', NULL
, N_("Create a position independent executable"), ONE_DASH
},
513 { {"pic-executable", no_argument
, NULL
, OPTION_PIE
},
514 '\0', NULL
, NULL
, TWO_DASHES
},
515 { {"sort-common", optional_argument
, NULL
, OPTION_SORT_COMMON
},
516 '\0', N_("[=ascending|descending]"),
517 N_("Sort common symbols by alignment [in specified order]"),
519 { {"sort_common", no_argument
, NULL
, OPTION_SORT_COMMON
},
520 '\0', NULL
, NULL
, NO_HELP
},
521 { {"sort-section", required_argument
, NULL
, OPTION_SORT_SECTION
},
522 '\0', N_("name|alignment"),
523 N_("Sort sections by name or maximum alignment"), TWO_DASHES
},
524 { {"spare-dynamic-tags", required_argument
, NULL
, OPTION_SPARE_DYNAMIC_TAGS
},
525 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
527 { {"split-by-file", optional_argument
, NULL
, OPTION_SPLIT_BY_FILE
},
528 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
530 { {"split-by-reloc", optional_argument
, NULL
, OPTION_SPLIT_BY_RELOC
},
531 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
533 { {"stats", no_argument
, NULL
, OPTION_STATS
},
534 '\0', NULL
, N_("Print memory usage statistics"), TWO_DASHES
},
535 { {"target-help", no_argument
, NULL
, OPTION_TARGET_HELP
},
536 '\0', NULL
, N_("Display target specific options"), TWO_DASHES
},
537 { {"task-link", required_argument
, NULL
, OPTION_TASK_LINK
},
538 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES
},
539 { {"traditional-format", no_argument
, NULL
, OPTION_TRADITIONAL_FORMAT
},
540 '\0', NULL
, N_("Use same format as native linker"), TWO_DASHES
},
541 { {"section-start", required_argument
, NULL
, OPTION_SECTION_START
},
542 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
544 { {"Tbss", required_argument
, NULL
, OPTION_TBSS
},
545 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH
},
546 { {"Tdata", required_argument
, NULL
, OPTION_TDATA
},
547 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH
},
548 { {"Ttext", required_argument
, NULL
, OPTION_TTEXT
},
549 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH
},
550 { {"Ttext-segment", required_argument
, NULL
, OPTION_TTEXT_SEGMENT
},
551 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH
},
552 { {"unresolved-symbols=<method>", required_argument
, NULL
,
553 OPTION_UNRESOLVED_SYMBOLS
},
554 '\0', NULL
, N_("How to handle unresolved symbols. <method> is:\n"
555 " ignore-all, report-all, ignore-in-object-files,\n"
556 " ignore-in-shared-libs"),
558 { {"verbose", no_argument
, NULL
, OPTION_VERBOSE
},
559 '\0', NULL
, N_("Output lots of information during link"), TWO_DASHES
},
560 { {"dll-verbose", no_argument
, NULL
, OPTION_VERBOSE
}, /* Linux. */
561 '\0', NULL
, NULL
, NO_HELP
},
562 { {"version-script", required_argument
, NULL
, OPTION_VERSION_SCRIPT
},
563 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES
},
564 { {"version-exports-section", required_argument
, NULL
,
565 OPTION_VERSION_EXPORTS_SECTION
},
566 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
567 " SYMBOL as the version."),
569 { {"dynamic-list-data", no_argument
, NULL
, OPTION_DYNAMIC_LIST_DATA
},
570 '\0', NULL
, N_("Add data symbols to dynamic list"), TWO_DASHES
},
571 { {"dynamic-list-cpp-new", no_argument
, NULL
, OPTION_DYNAMIC_LIST_CPP_NEW
},
572 '\0', NULL
, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES
},
573 { {"dynamic-list-cpp-typeinfo", no_argument
, NULL
, OPTION_DYNAMIC_LIST_CPP_TYPEINFO
},
574 '\0', NULL
, N_("Use C++ typeinfo dynamic list"), TWO_DASHES
},
575 { {"dynamic-list", required_argument
, NULL
, OPTION_DYNAMIC_LIST
},
576 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES
},
577 { {"warn-common", no_argument
, NULL
, OPTION_WARN_COMMON
},
578 '\0', NULL
, N_("Warn about duplicate common symbols"), TWO_DASHES
},
579 { {"warn-constructors", no_argument
, NULL
, OPTION_WARN_CONSTRUCTORS
},
580 '\0', NULL
, N_("Warn if global constructors/destructors are seen"),
582 { {"warn-multiple-gp", no_argument
, NULL
, OPTION_WARN_MULTIPLE_GP
},
583 '\0', NULL
, N_("Warn if the multiple GP values are used"), TWO_DASHES
},
584 { {"warn-once", no_argument
, NULL
, OPTION_WARN_ONCE
},
585 '\0', NULL
, N_("Warn only once per undefined symbol"), TWO_DASHES
},
586 { {"warn-section-align", no_argument
, NULL
, OPTION_WARN_SECTION_ALIGN
},
587 '\0', NULL
, N_("Warn if start of section changes due to alignment"),
589 { {"warn-shared-textrel", no_argument
, NULL
, OPTION_WARN_SHARED_TEXTREL
},
590 '\0', NULL
, N_("Warn if shared object has DT_TEXTREL"),
592 { {"warn-alternate-em", no_argument
, NULL
, OPTION_WARN_ALTERNATE_EM
},
593 '\0', NULL
, N_("Warn if an object has alternate ELF machine code"),
595 { {"warn-unresolved-symbols", no_argument
, NULL
,
596 OPTION_WARN_UNRESOLVED_SYMBOLS
},
597 '\0', NULL
, N_("Report unresolved symbols as warnings"), TWO_DASHES
},
598 { {"error-unresolved-symbols", no_argument
, NULL
,
599 OPTION_ERROR_UNRESOLVED_SYMBOLS
},
600 '\0', NULL
, N_("Report unresolved symbols as errors"), TWO_DASHES
},
601 { {"whole-archive", no_argument
, NULL
, OPTION_WHOLE_ARCHIVE
},
602 '\0', NULL
, N_("Include all objects from following archives"),
604 { {"wrap", required_argument
, NULL
, OPTION_WRAP
},
605 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES
},
608 #define OPTION_COUNT ARRAY_SIZE (ld_options)
611 parse_args (unsigned argc
, char **argv
)
616 char *default_dirlist
= NULL
;
618 struct option
*longopts
;
619 struct option
*really_longopts
;
621 enum report_method how_to_report_unresolved_symbols
= RM_GENERATE_ERROR
;
623 shortopts
= (char *) xmalloc (OPTION_COUNT
* 3 + 2);
624 longopts
= (struct option
*)
625 xmalloc (sizeof (*longopts
) * (OPTION_COUNT
+ 1));
626 really_longopts
= (struct option
*)
627 malloc (sizeof (*really_longopts
) * (OPTION_COUNT
+ 1));
629 /* Starting the short option string with '-' is for programs that
630 expect options and other ARGV-elements in any order and that care about
631 the ordering of the two. We describe each non-option ARGV-element
632 as if it were the argument of an option with character code 1. */
637 for (i
= 0; i
< OPTION_COUNT
; i
++)
639 if (ld_options
[i
].shortopt
!= '\0')
641 shortopts
[is
] = ld_options
[i
].shortopt
;
643 if (ld_options
[i
].opt
.has_arg
== required_argument
644 || ld_options
[i
].opt
.has_arg
== optional_argument
)
648 if (ld_options
[i
].opt
.has_arg
== optional_argument
)
655 if (ld_options
[i
].opt
.name
!= NULL
)
657 if (ld_options
[i
].control
== EXACTLY_TWO_DASHES
)
659 really_longopts
[irl
] = ld_options
[i
].opt
;
664 longopts
[il
] = ld_options
[i
].opt
;
669 shortopts
[is
] = '\0';
670 longopts
[il
].name
= NULL
;
671 really_longopts
[irl
].name
= NULL
;
673 ldemul_add_options (is
, &shortopts
, il
, &longopts
, irl
, &really_longopts
);
675 /* The -G option is ambiguous on different platforms. Sometimes it
676 specifies the largest data size to put into the small data
677 section. Sometimes it is equivalent to --shared. Unfortunately,
678 the first form takes an argument, while the second does not.
680 We need to permit the --shared form because on some platforms,
681 such as Solaris, gcc -shared will pass -G to the linker.
683 To permit either usage, we look through the argument list. If we
684 find -G not followed by a number, we change it into --shared.
685 This will work for most normal cases. */
686 for (i
= 1; i
< argc
; i
++)
687 if (strcmp (argv
[i
], "-G") == 0
689 || ! ISDIGIT (argv
[i
+ 1][0])))
690 argv
[i
] = (char *) "--shared";
692 /* Because we permit long options to start with a single dash, and
693 we have a --library option, and the -l option is conventionally
694 used with an immediately following argument, we can have bad
695 results if somebody tries to use -l with a library whose name
696 happens to start with "ibrary", as in -li. We avoid problems by
697 simply turning -l into --library. This means that users will
698 have to use two dashes in order to use --library, which is OK
699 since that's how it is documented.
701 FIXME: It's possible that this problem can arise for other short
702 options as well, although the user does always have the recourse
703 of adding a space between the option and the argument. */
704 for (i
= 1; i
< argc
; i
++)
706 if (argv
[i
][0] == '-'
708 && argv
[i
][2] != '\0')
712 n
= (char *) xmalloc (strlen (argv
[i
]) + 20);
713 sprintf (n
, "--library=%s", argv
[i
] + 2);
724 /* Using last_optind lets us avoid calling ldemul_parse_args
725 multiple times on a single option, which would lead to
726 confusion in the internal static variables maintained by
727 getopt. This could otherwise happen for an argument like
728 -nx, in which the -n is parsed as a single option, and we
729 loop around to pick up the -x. */
730 if (optind
!= last_optind
)
731 if (ldemul_parse_args (argc
, argv
))
734 /* getopt_long_only is like getopt_long, but '-' as well as '--'
735 can indicate a long option. */
737 last_optind
= optind
;
738 optc
= getopt_long_only (argc
, argv
, shortopts
, longopts
, &longind
);
741 optind
= last_optind
;
742 optc
= getopt_long (argc
, argv
, "-", really_longopts
, &longind
);
745 if (ldemul_handle_option (optc
))
754 einfo (_("%P: unrecognized option '%s'\n"), argv
[last_optind
]);
758 einfo (_("%P%F: use the --help option for usage information\n"));
760 case 1: /* File name. */
761 lang_add_input_file (optarg
, lang_input_file_is_file_enum
, NULL
);
767 /* For HP/UX compatibility. Actually -a shared should mean
768 ``use only shared libraries'' but, then, we don't
769 currently support shared libraries on HP/UX anyhow. */
770 if (strcmp (optarg
, "archive") == 0)
771 config
.dynamic_link
= FALSE
;
772 else if (strcmp (optarg
, "shared") == 0
773 || strcmp (optarg
, "default") == 0)
774 config
.dynamic_link
= TRUE
;
776 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg
);
779 /* FIXME: We just ignore these, but we should handle them. */
780 if (strcmp (optarg
, "definitions") == 0)
782 else if (strcmp (optarg
, "nodefinitions") == 0)
784 else if (strcmp (optarg
, "nosymbolic") == 0)
786 else if (strcmp (optarg
, "pure-text") == 0)
789 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg
);
792 ldfile_add_arch (optarg
);
795 lang_add_target (optarg
);
798 ldfile_open_command_file (optarg
);
799 parser_input
= input_mri_script
;
802 case OPTION_CALL_SHARED
:
803 config
.dynamic_link
= TRUE
;
805 case OPTION_NON_SHARED
:
806 config
.dynamic_link
= FALSE
;
809 command_line
.cref
= TRUE
;
810 link_info
.notice_all
= TRUE
;
813 command_line
.force_common_definition
= TRUE
;
817 lex_redirect (optarg
);
818 parser_input
= input_defsym
;
824 case OPTION_DEMANGLE
:
828 enum demangling_styles style
;
830 style
= cplus_demangle_name_to_style (optarg
);
831 if (style
== unknown_demangling
)
832 einfo (_("%F%P: unknown demangling style `%s'"),
835 cplus_demangle_set_style (style
);
838 case 'I': /* Used on Solaris. */
839 case OPTION_DYNAMIC_LINKER
:
840 command_line
.interpreter
= optarg
;
843 /* Already handled in ldmain.c. */
846 command_line
.endian
= ENDIAN_BIG
;
849 command_line
.endian
= ENDIAN_LITTLE
;
851 case OPTION_EMBEDDED_RELOCS
:
852 command_line
.embedded_relocs
= TRUE
;
854 case OPTION_EXPORT_DYNAMIC
:
855 case 'E': /* HP/UX compatibility. */
856 link_info
.export_dynamic
= TRUE
;
858 case OPTION_NO_EXPORT_DYNAMIC
:
859 link_info
.export_dynamic
= FALSE
;
862 lang_add_entry (optarg
, TRUE
);
865 if (command_line
.auxiliary_filters
== NULL
)
867 command_line
.auxiliary_filters
= (char **)
868 xmalloc (2 * sizeof (char *));
869 command_line
.auxiliary_filters
[0] = optarg
;
870 command_line
.auxiliary_filters
[1] = NULL
;
878 for (p
= command_line
.auxiliary_filters
; *p
!= NULL
; p
++)
880 command_line
.auxiliary_filters
= (char **)
881 xrealloc (command_line
.auxiliary_filters
,
882 (c
+ 2) * sizeof (char *));
883 command_line
.auxiliary_filters
[c
] = optarg
;
884 command_line
.auxiliary_filters
[c
+ 1] = NULL
;
888 command_line
.filter_shlib
= optarg
;
890 case OPTION_FORCE_EXE_SUFFIX
:
891 command_line
.force_exe_suffix
= TRUE
;
896 g_switch_value
= strtoul (optarg
, &end
, 0);
898 einfo (_("%P%F: invalid number `%s'\n"), optarg
);
904 case OPTION_GC_SECTIONS
:
905 link_info
.gc_sections
= TRUE
;
907 case OPTION_PRINT_GC_SECTIONS
:
908 link_info
.print_gc_sections
= TRUE
;
915 ldfile_add_library_path (optarg
, TRUE
);
918 lang_add_input_file (optarg
, lang_input_file_is_l_enum
, NULL
);
921 config
.map_filename
= "-";
924 /* Ignore. Was handled in a pre-parse. */
927 config
.map_filename
= optarg
;
930 config
.text_read_only
= FALSE
;
931 config
.magic_demand_paged
= FALSE
;
932 config
.dynamic_link
= FALSE
;
934 case OPTION_NO_OMAGIC
:
935 config
.text_read_only
= TRUE
;
936 config
.magic_demand_paged
= TRUE
;
937 /* NB/ Does not set dynamic_link to TRUE.
938 Use --call-shared or -Bdynamic for this. */
941 config
.magic_demand_paged
= FALSE
;
942 config
.dynamic_link
= FALSE
;
944 case OPTION_NO_DEFINE_COMMON
:
945 command_line
.inhibit_common_definition
= TRUE
;
947 case OPTION_NO_DEMANGLE
:
950 case OPTION_NO_GC_SECTIONS
:
951 link_info
.gc_sections
= FALSE
;
953 case OPTION_NO_PRINT_GC_SECTIONS
:
954 link_info
.print_gc_sections
= FALSE
;
956 case OPTION_NO_KEEP_MEMORY
:
957 link_info
.keep_memory
= FALSE
;
959 case OPTION_NO_UNDEFINED
:
960 link_info
.unresolved_syms_in_objects
961 = how_to_report_unresolved_symbols
;
963 case OPTION_ALLOW_SHLIB_UNDEFINED
:
964 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
966 case OPTION_NO_ALLOW_SHLIB_UNDEFINED
:
967 link_info
.unresolved_syms_in_shared_libs
968 = how_to_report_unresolved_symbols
;
970 case OPTION_UNRESOLVED_SYMBOLS
:
971 if (strcmp (optarg
, "ignore-all") == 0)
973 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
974 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
976 else if (strcmp (optarg
, "report-all") == 0)
978 link_info
.unresolved_syms_in_objects
979 = how_to_report_unresolved_symbols
;
980 link_info
.unresolved_syms_in_shared_libs
981 = how_to_report_unresolved_symbols
;
983 else if (strcmp (optarg
, "ignore-in-object-files") == 0)
985 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
986 link_info
.unresolved_syms_in_shared_libs
987 = how_to_report_unresolved_symbols
;
989 else if (strcmp (optarg
, "ignore-in-shared-libs") == 0)
991 link_info
.unresolved_syms_in_objects
992 = how_to_report_unresolved_symbols
;
993 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
996 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg
);
998 case OPTION_WARN_UNRESOLVED_SYMBOLS
:
999 how_to_report_unresolved_symbols
= RM_GENERATE_WARNING
;
1000 if (link_info
.unresolved_syms_in_objects
== RM_GENERATE_ERROR
)
1001 link_info
.unresolved_syms_in_objects
= RM_GENERATE_WARNING
;
1002 if (link_info
.unresolved_syms_in_shared_libs
== RM_GENERATE_ERROR
)
1003 link_info
.unresolved_syms_in_shared_libs
= RM_GENERATE_WARNING
;
1006 case OPTION_ERROR_UNRESOLVED_SYMBOLS
:
1007 how_to_report_unresolved_symbols
= RM_GENERATE_ERROR
;
1008 if (link_info
.unresolved_syms_in_objects
== RM_GENERATE_WARNING
)
1009 link_info
.unresolved_syms_in_objects
= RM_GENERATE_ERROR
;
1010 if (link_info
.unresolved_syms_in_shared_libs
== RM_GENERATE_WARNING
)
1011 link_info
.unresolved_syms_in_shared_libs
= RM_GENERATE_ERROR
;
1013 case OPTION_ALLOW_MULTIPLE_DEFINITION
:
1014 link_info
.allow_multiple_definition
= TRUE
;
1016 case OPTION_NO_UNDEFINED_VERSION
:
1017 link_info
.allow_undefined_version
= FALSE
;
1019 case OPTION_DEFAULT_SYMVER
:
1020 link_info
.create_default_symver
= TRUE
;
1022 case OPTION_DEFAULT_IMPORTED_SYMVER
:
1023 link_info
.default_imported_symver
= TRUE
;
1025 case OPTION_NO_WARN_MISMATCH
:
1026 command_line
.warn_mismatch
= FALSE
;
1028 case OPTION_NO_WARN_SEARCH_MISMATCH
:
1029 command_line
.warn_search_mismatch
= FALSE
;
1031 case OPTION_NOINHIBIT_EXEC
:
1032 force_make_executable
= TRUE
;
1034 case OPTION_NOSTDLIB
:
1035 config
.only_cmd_line_lib_dirs
= TRUE
;
1037 case OPTION_NO_WHOLE_ARCHIVE
:
1038 whole_archive
= FALSE
;
1041 /* FIXME "-O<non-digits> <value>" used to set the address of
1042 section <non-digits>. Was this for compatibility with
1043 something, or can we create a new option to do that
1044 (with a syntax similar to -defsym)?
1045 getopt can't handle two args to an option without kludges. */
1047 /* Enable optimizations of output files. */
1048 link_info
.optimize
= strtoul (optarg
, NULL
, 0) ? TRUE
: FALSE
;
1051 lang_add_output (optarg
, 0);
1053 case OPTION_OFORMAT
:
1054 lang_add_output_format (optarg
, NULL
, NULL
, 0);
1056 #ifdef ENABLE_PLUGINS
1058 if (plugin_opt_plugin (optarg
))
1059 einfo(_("%P%F: bad -plugin option\n"));
1061 case OPTION_PLUGIN_OPT
:
1062 if (plugin_opt_plugin_arg (optarg
))
1063 einfo(_("%P%F: bad -plugin-opt option\n"));
1065 #endif /* ENABLE_PLUGINS */
1067 link_info
.emitrelocations
= TRUE
;
1071 if (optind
== last_optind
)
1072 /* This can happen if the user put "-rpath,a" on the command
1073 line. (Or something similar. The comma is important).
1074 Getopt becomes confused and thinks that this is a -r option
1075 but it cannot parse the text after the -r so it refuses to
1076 increment the optind counter. Detect this case and issue
1077 an error message here. We cannot just make this a warning,
1078 increment optind, and continue because getopt is too confused
1079 and will seg-fault the next time around. */
1080 einfo(_("%P%F: bad -rpath option\n"));
1082 link_info
.relocatable
= TRUE
;
1083 config
.build_constructors
= FALSE
;
1084 config
.magic_demand_paged
= FALSE
;
1085 config
.text_read_only
= FALSE
;
1086 config
.dynamic_link
= FALSE
;
1089 /* The GNU linker traditionally uses -R to mean to include
1090 only the symbols from a file. The Solaris linker uses -R
1091 to set the path used by the runtime linker to find
1092 libraries. This is the GNU linker -rpath argument. We
1093 try to support both simultaneously by checking the file
1094 named. If it is a directory, rather than a regular file,
1095 we assume -rpath was meant. */
1099 if (stat (optarg
, &s
) >= 0
1100 && ! S_ISDIR (s
.st_mode
))
1102 lang_add_input_file (optarg
,
1103 lang_input_file_is_symbols_only_enum
,
1110 if (command_line
.rpath
== NULL
)
1111 command_line
.rpath
= xstrdup (optarg
);
1114 size_t rpath_len
= strlen (command_line
.rpath
);
1115 size_t optarg_len
= strlen (optarg
);
1117 char *cp
= command_line
.rpath
;
1119 /* First see whether OPTARG is already in the path. */
1122 if (strncmp (optarg
, cp
, optarg_len
) == 0
1123 && (cp
[optarg_len
] == 0
1124 || cp
[optarg_len
] == config
.rpath_separator
))
1128 /* Not yet found. */
1129 cp
= strchr (cp
, config
.rpath_separator
);
1137 buf
= (char *) xmalloc (rpath_len
+ optarg_len
+ 2);
1138 sprintf (buf
, "%s%c%s", command_line
.rpath
,
1139 config
.rpath_separator
, optarg
);
1140 free (command_line
.rpath
);
1141 command_line
.rpath
= buf
;
1145 case OPTION_RPATH_LINK
:
1146 if (command_line
.rpath_link
== NULL
)
1147 command_line
.rpath_link
= xstrdup (optarg
);
1152 buf
= (char *) xmalloc (strlen (command_line
.rpath_link
)
1155 sprintf (buf
, "%s%c%s", command_line
.rpath_link
,
1156 config
.rpath_separator
, optarg
);
1157 free (command_line
.rpath_link
);
1158 command_line
.rpath_link
= buf
;
1161 case OPTION_NO_RELAX
:
1167 case OPTION_RETAIN_SYMBOLS_FILE
:
1168 add_keepsyms_file (optarg
);
1171 link_info
.strip
= strip_debugger
;
1174 link_info
.strip
= strip_all
;
1176 case OPTION_STRIP_DISCARDED
:
1177 link_info
.strip_discarded
= TRUE
;
1179 case OPTION_NO_STRIP_DISCARDED
:
1180 link_info
.strip_discarded
= FALSE
;
1183 if (config
.has_shared
)
1185 link_info
.shared
= TRUE
;
1186 /* When creating a shared library, the default
1187 behaviour is to ignore any unresolved references. */
1188 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1189 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
1190 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1191 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
1194 einfo (_("%P%F: -shared not supported\n"));
1197 if (config
.has_shared
)
1199 link_info
.shared
= TRUE
;
1200 link_info
.pie
= TRUE
;
1203 einfo (_("%P%F: -pie not supported\n"));
1205 case 'h': /* Used on Solaris. */
1207 command_line
.soname
= optarg
;
1209 case OPTION_SORT_COMMON
:
1211 || strcmp (optarg
, N_("descending")) == 0)
1212 config
.sort_common
= sort_descending
;
1213 else if (strcmp (optarg
, N_("ascending")) == 0)
1214 config
.sort_common
= sort_ascending
;
1216 einfo (_("%P%F: invalid common section sorting option: %s\n"),
1219 case OPTION_SORT_SECTION
:
1220 if (strcmp (optarg
, N_("name")) == 0)
1221 sort_section
= by_name
;
1222 else if (strcmp (optarg
, N_("alignment")) == 0)
1223 sort_section
= by_alignment
;
1225 einfo (_("%P%F: invalid section sorting option: %s\n"),
1229 config
.stats
= TRUE
;
1231 case OPTION_SYMBOLIC
:
1232 command_line
.symbolic
= symbolic
;
1234 case OPTION_SYMBOLIC_FUNCTIONS
:
1235 command_line
.symbolic
= symbolic_functions
;
1241 previous_script_handle
= saved_script_handle
;
1242 ldfile_open_command_file (optarg
);
1243 parser_input
= input_script
;
1245 previous_script_handle
= NULL
;
1247 case OPTION_DEFAULT_SCRIPT
:
1248 command_line
.default_script
= optarg
;
1250 case OPTION_SECTION_START
:
1256 /* Check for <something>=<somthing>... */
1257 optarg2
= strchr (optarg
, '=');
1258 if (optarg2
== NULL
)
1259 einfo (_("%P%F: invalid argument to option"
1260 " \"--section-start\"\n"));
1264 /* So far so good. Are all the args present? */
1265 if ((*optarg
== '\0') || (*optarg2
== '\0'))
1266 einfo (_("%P%F: missing argument(s) to option"
1267 " \"--section-start\"\n"));
1269 /* We must copy the section name as set_section_start
1270 doesn't do it for us. */
1271 len
= optarg2
- optarg
;
1272 sec_name
= (char *) xmalloc (len
);
1273 memcpy (sec_name
, optarg
, len
- 1);
1274 sec_name
[len
- 1] = 0;
1276 /* Then set it... */
1277 set_section_start (sec_name
, optarg2
);
1280 case OPTION_TARGET_HELP
:
1281 /* Mention any target specific options. */
1282 ldemul_list_emulation_options (stdout
);
1285 set_segment_start (".bss", optarg
);
1288 set_segment_start (".data", optarg
);
1291 set_segment_start (".text", optarg
);
1293 case OPTION_TTEXT_SEGMENT
:
1294 set_segment_start (".text-segment", optarg
);
1296 case OPTION_TRADITIONAL_FORMAT
:
1297 link_info
.traditional_format
= TRUE
;
1299 case OPTION_TASK_LINK
:
1300 link_info
.task_link
= TRUE
;
1301 /* Fall through - do an implied -r option. */
1303 link_info
.relocatable
= TRUE
;
1304 config
.build_constructors
= TRUE
;
1305 config
.magic_demand_paged
= FALSE
;
1306 config
.text_read_only
= FALSE
;
1307 config
.dynamic_link
= FALSE
;
1310 ldlang_add_undef (optarg
, TRUE
);
1314 lang_add_unique (optarg
);
1316 config
.unique_orphan_sections
= TRUE
;
1318 case OPTION_VERBOSE
:
1320 version_printed
= TRUE
;
1321 trace_file_tries
= TRUE
;
1322 overflow_cutoff_limit
= -2;
1326 version_printed
= TRUE
;
1330 version_printed
= TRUE
;
1332 case OPTION_VERSION
:
1336 case OPTION_VERSION_SCRIPT
:
1337 /* This option indicates a small script that only specifies
1338 version information. Read it, but don't assume that
1339 we've seen a linker script. */
1341 FILE *hold_script_handle
;
1343 hold_script_handle
= saved_script_handle
;
1344 ldfile_open_command_file (optarg
);
1345 saved_script_handle
= hold_script_handle
;
1346 parser_input
= input_version_script
;
1350 case OPTION_VERSION_EXPORTS_SECTION
:
1351 /* This option records a version symbol to be applied to the
1352 symbols listed for export to be found in the object files
1353 .exports sections. */
1354 command_line
.version_exports_section
= optarg
;
1356 case OPTION_DYNAMIC_LIST_DATA
:
1357 command_line
.dynamic_list
= dynamic_list_data
;
1358 if (command_line
.symbolic
== symbolic
)
1359 command_line
.symbolic
= symbolic_unset
;
1361 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO
:
1362 lang_append_dynamic_list_cpp_typeinfo ();
1363 if (command_line
.dynamic_list
!= dynamic_list_data
)
1364 command_line
.dynamic_list
= dynamic_list
;
1365 if (command_line
.symbolic
== symbolic
)
1366 command_line
.symbolic
= symbolic_unset
;
1368 case OPTION_DYNAMIC_LIST_CPP_NEW
:
1369 lang_append_dynamic_list_cpp_new ();
1370 if (command_line
.dynamic_list
!= dynamic_list_data
)
1371 command_line
.dynamic_list
= dynamic_list
;
1372 if (command_line
.symbolic
== symbolic
)
1373 command_line
.symbolic
= symbolic_unset
;
1375 case OPTION_DYNAMIC_LIST
:
1376 /* This option indicates a small script that only specifies
1377 a dynamic list. Read it, but don't assume that we've
1378 seen a linker script. */
1380 FILE *hold_script_handle
;
1382 hold_script_handle
= saved_script_handle
;
1383 ldfile_open_command_file (optarg
);
1384 saved_script_handle
= hold_script_handle
;
1385 parser_input
= input_dynamic_list
;
1388 if (command_line
.dynamic_list
!= dynamic_list_data
)
1389 command_line
.dynamic_list
= dynamic_list
;
1390 if (command_line
.symbolic
== symbolic
)
1391 command_line
.symbolic
= symbolic_unset
;
1393 case OPTION_WARN_COMMON
:
1394 config
.warn_common
= TRUE
;
1396 case OPTION_WARN_CONSTRUCTORS
:
1397 config
.warn_constructors
= TRUE
;
1399 case OPTION_WARN_FATAL
:
1400 config
.fatal_warnings
= TRUE
;
1402 case OPTION_NO_WARN_FATAL
:
1403 config
.fatal_warnings
= FALSE
;
1405 case OPTION_WARN_MULTIPLE_GP
:
1406 config
.warn_multiple_gp
= TRUE
;
1408 case OPTION_WARN_ONCE
:
1409 config
.warn_once
= TRUE
;
1411 case OPTION_WARN_SECTION_ALIGN
:
1412 config
.warn_section_align
= TRUE
;
1414 case OPTION_WARN_SHARED_TEXTREL
:
1415 link_info
.warn_shared_textrel
= TRUE
;
1417 case OPTION_WARN_ALTERNATE_EM
:
1418 link_info
.warn_alternate_em
= TRUE
;
1420 case OPTION_WHOLE_ARCHIVE
:
1421 whole_archive
= TRUE
;
1423 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
:
1424 add_DT_NEEDED_for_dynamic
= TRUE
;
1426 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
:
1427 add_DT_NEEDED_for_dynamic
= FALSE
;
1429 case OPTION_ADD_DT_NEEDED_FOR_REGULAR
:
1430 add_DT_NEEDED_for_regular
= TRUE
;
1432 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
:
1433 add_DT_NEEDED_for_regular
= FALSE
;
1438 case OPTION_DISCARD_NONE
:
1439 link_info
.discard
= discard_none
;
1442 link_info
.discard
= discard_l
;
1445 link_info
.discard
= discard_all
;
1448 if (CONST_STRNEQ (optarg
, "P,"))
1450 if (default_dirlist
!= NULL
)
1451 free (default_dirlist
);
1452 default_dirlist
= xstrdup (optarg
);
1457 case OPTION_SPARE_DYNAMIC_TAGS
:
1458 link_info
.spare_dynamic_tags
= strtoul (optarg
, NULL
, 0);
1460 case OPTION_SPLIT_BY_RELOC
:
1462 config
.split_by_reloc
= strtoul (optarg
, NULL
, 0);
1464 config
.split_by_reloc
= 32768;
1466 case OPTION_SPLIT_BY_FILE
:
1468 config
.split_by_file
= bfd_scan_vma (optarg
, NULL
, 0);
1470 config
.split_by_file
= 1;
1472 case OPTION_CHECK_SECTIONS
:
1473 command_line
.check_section_addresses
= 1;
1475 case OPTION_NO_CHECK_SECTIONS
:
1476 command_line
.check_section_addresses
= 0;
1478 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
:
1479 command_line
.accept_unknown_input_arch
= TRUE
;
1481 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
:
1482 command_line
.accept_unknown_input_arch
= FALSE
;
1485 lang_enter_group ();
1490 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1492 lang_leave_group ();
1497 link_info
.init_function
= optarg
;
1501 link_info
.fini_function
= optarg
;
1504 case OPTION_REDUCE_MEMORY_OVERHEADS
:
1505 link_info
.reduce_memory_overheads
= TRUE
;
1506 if (config
.hash_table_size
== 0)
1507 config
.hash_table_size
= 1021;
1510 case OPTION_HASH_SIZE
:
1512 bfd_size_type new_size
;
1514 new_size
= strtoul (optarg
, NULL
, 0);
1516 config
.hash_table_size
= new_size
;
1518 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1526 lang_leave_group ();
1530 if (default_dirlist
!= NULL
)
1532 set_default_dirlist (default_dirlist
);
1533 free (default_dirlist
);
1536 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1537 /* FIXME: Should we allow emulations a chance to set this ? */
1538 link_info
.unresolved_syms_in_objects
= how_to_report_unresolved_symbols
;
1540 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1541 /* FIXME: Should we allow emulations a chance to set this ? */
1542 link_info
.unresolved_syms_in_shared_libs
= how_to_report_unresolved_symbols
;
1544 #ifdef ENABLE_PLUGINS
1545 /* Now all the plugin arguments have been gathered, we can load them. */
1546 if (plugin_load_plugins ())
1547 einfo (_("%P%F: %s: error loading plugin\n"), plugin_error_plugin ());
1548 #endif /* ENABLE_PLUGINS */
1551 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1552 library search path. */
1555 set_default_dirlist (char *dirlist_ptr
)
1561 p
= strchr (dirlist_ptr
, PATH_SEPARATOR
);
1564 if (*dirlist_ptr
!= '\0')
1565 ldfile_add_library_path (dirlist_ptr
, TRUE
);
1568 dirlist_ptr
= p
+ 1;
1573 set_section_start (char *sect
, char *valstr
)
1576 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
1578 einfo (_("%P%F: invalid hex number `%s'\n"), valstr
);
1579 lang_section_start (sect
, exp_intop (val
), NULL
);
1583 set_segment_start (const char *section
, char *valstr
)
1589 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
1591 einfo (_("%P%F: invalid hex number `%s'\n"), valstr
);
1592 /* If we already have an entry for this segment, update the existing
1595 for (seg
= segments
; seg
; seg
= seg
->next
)
1596 if (strcmp (seg
->name
, name
) == 0)
1601 /* There was no existing value so we must create a new segment
1603 seg
= (segment_type
*) stat_alloc (sizeof (*seg
));
1607 /* Add it to the linked list of segments. */
1608 seg
->next
= segments
;
1610 /* Historically, -Ttext and friends set the base address of a
1611 particular section. For backwards compatibility, we still do
1612 that. If a SEGMENT_START directive is seen, the section address
1613 assignment will be disabled. */
1614 lang_section_start (section
, exp_intop (val
), seg
);
1618 /* Print help messages for the options. */
1624 const char **targets
, **pp
;
1627 printf (_("Usage: %s [options] file...\n"), program_name
);
1629 printf (_("Options:\n"));
1630 for (i
= 0; i
< OPTION_COUNT
; i
++)
1632 if (ld_options
[i
].doc
!= NULL
)
1645 if (ld_options
[j
].shortopt
!= '\0'
1646 && ld_options
[j
].control
!= NO_HELP
)
1648 printf ("%s-%c", comma
? ", " : "", ld_options
[j
].shortopt
);
1649 len
+= (comma
? 2 : 0) + 2;
1650 if (ld_options
[j
].arg
!= NULL
)
1652 if (ld_options
[j
].opt
.has_arg
!= optional_argument
)
1657 printf ("%s", _(ld_options
[j
].arg
));
1658 len
+= strlen (_(ld_options
[j
].arg
));
1664 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
1669 if (ld_options
[j
].opt
.name
!= NULL
1670 && ld_options
[j
].control
!= NO_HELP
)
1673 (ld_options
[j
].control
== TWO_DASHES
1674 || ld_options
[j
].control
== EXACTLY_TWO_DASHES
);
1678 two_dashes
? "-" : "",
1679 ld_options
[j
].opt
.name
);
1680 len
+= ((comma
? 2 : 0)
1682 + (two_dashes
? 1 : 0)
1683 + strlen (ld_options
[j
].opt
.name
));
1684 if (ld_options
[j
].arg
!= NULL
)
1686 printf (" %s", _(ld_options
[j
].arg
));
1687 len
+= 1 + strlen (_(ld_options
[j
].arg
));
1693 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
1701 for (; len
< 30; len
++)
1704 printf ("%s\n", _(ld_options
[i
].doc
));
1707 printf (_(" @FILE"));
1708 for (len
= strlen (" @FILE"); len
< 30; len
++)
1710 printf (_("Read options from FILE\n"));
1712 /* Note: Various tools (such as libtool) depend upon the
1713 format of the listings below - do not change them. */
1714 /* xgettext:c-format */
1715 printf (_("%s: supported targets:"), program_name
);
1716 targets
= bfd_target_list ();
1717 for (pp
= targets
; *pp
!= NULL
; pp
++)
1718 printf (" %s", *pp
);
1722 /* xgettext:c-format */
1723 printf (_("%s: supported emulations: "), program_name
);
1724 ldemul_list_emulations (stdout
);
1727 /* xgettext:c-format */
1728 printf (_("%s: emulation specific options:\n"), program_name
);
1729 ldemul_list_emulation_options (stdout
);
1732 if (REPORT_BUGS_TO
[0])
1733 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO
);