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
4 Free Software Foundation, Inc.
6 This file is part of GLD, the Gnu Linker.
8 GLD 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, or (at your option)
13 GLD 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 GLD; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
26 #include "libiberty.h"
29 #include "safe-ctype.h"
44 #ifndef PATH_SEPARATOR
45 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
46 #define PATH_SEPARATOR ';'
48 #define PATH_SEPARATOR ':'
52 /* Somewhere above, sys/stat.h got included . . . . */
53 #if !defined(S_ISDIR) && defined(S_IFDIR)
54 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
57 static void set_default_dirlist (char *);
58 static void set_section_start (char *, char *);
59 static void set_segment_start (const char *, char *);
60 static void help (void);
62 /* Non-zero if we are processing a --defsym from the command line. */
63 int parsing_defsym = 0;
65 /* Codes used for the long options with no short synonyms. 150 isn't
66 special; it's just an arbitrary non-ASCII char value. */
74 OPTION_DYNAMIC_LINKER,
78 OPTION_EMBEDDED_RELOCS,
79 OPTION_EXPORT_DYNAMIC,
84 OPTION_NO_KEEP_MEMORY,
85 OPTION_NO_WARN_MISMATCH,
86 OPTION_NO_WARN_SEARCH_MISMATCH,
87 OPTION_NOINHIBIT_EXEC,
89 OPTION_NO_WHOLE_ARCHIVE,
92 OPTION_RETAIN_SYMBOLS_FILE,
101 OPTION_SYMBOLIC_FUNCTIONS,
106 OPTION_TRADITIONAL_FORMAT,
110 OPTION_VERSION_SCRIPT,
111 OPTION_VERSION_EXPORTS_SECTION,
113 OPTION_DYNAMIC_LIST_CPP_NEW,
114 OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
115 OPTION_DYNAMIC_LIST_DATA,
117 OPTION_WARN_CONSTRUCTORS,
119 OPTION_WARN_MULTIPLE_GP,
121 OPTION_WARN_SECTION_ALIGN,
122 OPTION_SPLIT_BY_RELOC,
123 OPTION_SPLIT_BY_FILE ,
124 OPTION_WHOLE_ARCHIVE,
126 OPTION_NO_ADD_NEEDED,
130 OPTION_FORCE_EXE_SUFFIX,
132 OPTION_NO_GC_SECTIONS,
133 OPTION_PRINT_GC_SECTIONS,
134 OPTION_NO_PRINT_GC_SECTIONS,
136 OPTION_CHECK_SECTIONS,
137 OPTION_NO_CHECK_SECTIONS,
141 OPTION_SECTION_START,
144 OPTION_ALLOW_SHLIB_UNDEFINED,
145 OPTION_NO_ALLOW_SHLIB_UNDEFINED,
146 OPTION_ALLOW_MULTIPLE_DEFINITION,
147 OPTION_NO_UNDEFINED_VERSION,
148 OPTION_DEFAULT_SYMVER,
149 OPTION_DEFAULT_IMPORTED_SYMVER,
151 OPTION_SPARE_DYNAMIC_TAGS,
152 OPTION_NO_DEFINE_COMMON,
155 OPTION_STRIP_DISCARDED,
156 OPTION_NO_STRIP_DISCARDED,
157 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
158 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
160 OPTION_UNRESOLVED_SYMBOLS,
161 OPTION_WARN_UNRESOLVED_SYMBOLS,
162 OPTION_ERROR_UNRESOLVED_SYMBOLS,
163 OPTION_WARN_SHARED_TEXTREL,
164 OPTION_REDUCE_MEMORY_OVERHEADS,
165 OPTION_DEFAULT_SCRIPT
168 /* The long options. This structure is used for both the option
169 parsing and the help text. */
173 /* The long option information. */
175 /* The short option with the same meaning ('\0' if none). */
177 /* The name of the argument (NULL if none). */
179 /* The documentation string. If this is NULL, this is a synonym for
180 the previous option. */
183 /* Use one dash before long option name. */
185 /* Use two dashes before long option name. */
187 /* Only accept two dashes before the long option name.
188 This is an overloading of the use of this enum, since originally it
189 was only intended to tell the --help display function how to display
190 the long option name. This feature was added in order to resolve
191 the confusion about the -omagic command line switch. Is it setting
192 the output file name to "magic" or is it setting the NMAGIC flag on
193 the output ? It has been decided that it is setting the output file
194 name, and that if you want to set the NMAGIC flag you should use -N
197 /* Don't mention this option in --help output. */
202 static const struct ld_option ld_options[] =
204 { {NULL, required_argument, NULL, '\0'},
205 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
207 { {"architecture", required_argument, NULL, 'A'},
208 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
209 { {"format", required_argument, NULL, 'b'},
210 'b', N_("TARGET"), N_("Specify target for following input files"),
212 { {"mri-script", required_argument, NULL, 'c'},
213 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
214 { {"dc", no_argument, NULL, 'd'},
215 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
216 { {"dp", no_argument, NULL, 'd'},
217 '\0', NULL, NULL, ONE_DASH },
218 { {"entry", required_argument, NULL, 'e'},
219 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
220 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
221 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
222 { {"EB", no_argument, NULL, OPTION_EB},
223 '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
224 { {"EL", no_argument, NULL, OPTION_EL},
225 '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
226 { {"auxiliary", required_argument, NULL, 'f'},
227 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
229 { {"filter", required_argument, NULL, 'F'},
230 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
232 { {NULL, no_argument, NULL, '\0'},
233 'g', NULL, N_("Ignored"), ONE_DASH },
234 { {"gpsize", required_argument, NULL, 'G'},
235 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
237 { {"soname", required_argument, NULL, OPTION_SONAME},
238 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
239 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
240 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
242 { {"library", required_argument, NULL, 'l'},
243 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
244 { {"library-path", required_argument, NULL, 'L'},
245 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
247 { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
248 '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
249 { {NULL, required_argument, NULL, '\0'},
250 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
251 { {"print-map", no_argument, NULL, 'M'},
252 'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
253 { {"nmagic", no_argument, NULL, 'n'},
254 'n', NULL, N_("Do not page align data"), TWO_DASHES },
255 { {"omagic", no_argument, NULL, 'N'},
256 'N', NULL, N_("Do not page align data, do not make text readonly"),
257 EXACTLY_TWO_DASHES },
258 { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
259 '\0', NULL, N_("Page align data, make text readonly"),
260 EXACTLY_TWO_DASHES },
261 { {"output", required_argument, NULL, 'o'},
262 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
263 { {NULL, required_argument, NULL, '\0'},
264 'O', NULL, N_("Optimize output file"), ONE_DASH },
265 { {"Qy", no_argument, NULL, OPTION_IGNORE},
266 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
267 { {"emit-relocs", no_argument, NULL, 'q'},
268 'q', NULL, "Generate relocations in final output", TWO_DASHES },
269 { {"relocatable", no_argument, NULL, 'r'},
270 'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
271 { {NULL, no_argument, NULL, '\0'},
272 'i', NULL, NULL, ONE_DASH },
273 { {"just-symbols", required_argument, NULL, 'R'},
274 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
276 { {"strip-all", no_argument, NULL, 's'},
277 's', NULL, N_("Strip all symbols"), TWO_DASHES },
278 { {"strip-debug", no_argument, NULL, 'S'},
279 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
280 { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
281 '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
282 { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
283 '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
284 { {"trace", no_argument, NULL, 't'},
285 't', NULL, N_("Trace file opens"), TWO_DASHES },
286 { {"script", required_argument, NULL, 'T'},
287 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
288 { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
289 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
290 { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
291 '\0', NULL, NULL, ONE_DASH },
292 { {"undefined", required_argument, NULL, 'u'},
293 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
295 { {"unique", optional_argument, NULL, OPTION_UNIQUE},
296 '\0', N_("[=SECTION]"),
297 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
298 { {"Ur", no_argument, NULL, OPTION_UR},
299 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
300 { {"version", no_argument, NULL, OPTION_VERSION},
301 'v', NULL, N_("Print version information"), TWO_DASHES },
302 { {NULL, no_argument, NULL, '\0'},
303 'V', NULL, N_("Print version and emulation information"), ONE_DASH },
304 { {"discard-all", no_argument, NULL, 'x'},
305 'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
306 { {"discard-locals", no_argument, NULL, 'X'},
307 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
308 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
309 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
310 { {"trace-symbol", required_argument, NULL, 'y'},
311 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
312 { {NULL, required_argument, NULL, '\0'},
313 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
315 { {"start-group", no_argument, NULL, '('},
316 '(', NULL, N_("Start a group"), TWO_DASHES },
317 { {"end-group", no_argument, NULL, ')'},
318 ')', NULL, N_("End a group"), TWO_DASHES },
319 { {"accept-unknown-input-arch", no_argument, NULL,
320 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
322 N_("Accept input files whose architecture cannot be determined"),
324 { {"no-accept-unknown-input-arch", no_argument, NULL,
325 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
326 '\0', NULL, N_("Reject input files whose architecture is unknown"),
328 { {"add-needed", no_argument, NULL, OPTION_ADD_NEEDED},
329 '\0', NULL, N_("Set DT_NEEDED tags for DT_NEEDED entries in\n"
330 "\t\t\t\tfollowing dynamic libs"), TWO_DASHES },
331 { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_NEEDED},
332 '\0', NULL, N_("Do not set DT_NEEDED tags for DT_NEEDED entries\n"
333 "\t\t\t\tin following dynamic libs"), TWO_DASHES },
334 { {"as-needed", no_argument, NULL, OPTION_AS_NEEDED},
335 '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
337 { {"no-as-needed", no_argument, NULL, OPTION_NO_AS_NEEDED},
338 '\0', NULL, N_("Always set DT_NEEDED for following dynamic libs"),
340 { {"assert", required_argument, NULL, OPTION_ASSERT},
341 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
342 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
343 '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
344 { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
345 '\0', NULL, NULL, ONE_DASH },
346 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
347 '\0', NULL, NULL, ONE_DASH },
348 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
349 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
350 { {"dn", no_argument, NULL, OPTION_NON_SHARED},
351 '\0', NULL, NULL, ONE_DASH },
352 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
353 '\0', NULL, NULL, ONE_DASH },
354 { {"static", no_argument, NULL, OPTION_NON_SHARED},
355 '\0', NULL, NULL, ONE_DASH },
356 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
357 '\0', NULL, N_("Bind global references locally"), ONE_DASH },
358 { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
359 '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
360 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
361 '\0', NULL, N_("Check section addresses for overlaps (default)"),
363 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
364 '\0', NULL, N_("Do not check section addresses for overlaps"),
366 { {"cref", no_argument, NULL, OPTION_CREF},
367 '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
368 { {"defsym", required_argument, NULL, OPTION_DEFSYM},
369 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
370 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
371 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
373 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
374 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
375 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
376 '\0', NULL, N_("Treat warnings as errors"),
378 { {"fini", required_argument, NULL, OPTION_FINI},
379 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
380 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
381 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
382 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
383 '\0', NULL, N_("Remove unused sections (on some targets)"),
385 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
386 '\0', NULL, N_("Don't remove unused sections (default)"),
388 { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
389 '\0', NULL, N_("List removed unused sections on stderr"),
391 { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
392 '\0', NULL, N_("Do not list removed unused sections"),
394 { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
395 '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
397 { {"help", no_argument, NULL, OPTION_HELP},
398 '\0', NULL, N_("Print option help"), TWO_DASHES },
399 { {"init", required_argument, NULL, OPTION_INIT},
400 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
401 { {"Map", required_argument, NULL, OPTION_MAP},
402 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
403 { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
404 '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
405 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
406 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
407 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
408 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
409 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
410 '\0', NULL, N_("Do not allow unresolved references in object files"),
412 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
413 '\0', NULL, N_("Allow unresolved references in shared libaries"),
415 { {"no-allow-shlib-undefined", no_argument, NULL,
416 OPTION_NO_ALLOW_SHLIB_UNDEFINED},
417 '\0', NULL, N_("Do not allow unresolved references in shared libs"),
419 { {"allow-multiple-definition", no_argument, NULL,
420 OPTION_ALLOW_MULTIPLE_DEFINITION},
421 '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
422 { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
423 '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
424 { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
425 '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
426 { {"default-imported-symver", no_argument, NULL,
427 OPTION_DEFAULT_IMPORTED_SYMVER},
428 '\0', NULL, N_("Create default symbol version for imported symbols"),
430 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
431 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
432 { {"no-warn-search-mismatch", no_argument, NULL,
433 OPTION_NO_WARN_SEARCH_MISMATCH},
434 '\0', NULL, N_("Don't warn on finding an incompatible library"),
436 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
437 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
438 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
439 '\0', NULL, N_("Create an output file even if errors occur"),
441 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
442 '\0', NULL, NULL, NO_HELP },
443 { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
444 '\0', NULL, N_("Only use library directories specified on\n"
445 "\t\t\t\tthe command line"), ONE_DASH },
446 { {"oformat", required_argument, NULL, OPTION_OFORMAT},
447 '\0', N_("TARGET"), N_("Specify target of output file"),
448 EXACTLY_TWO_DASHES },
449 { {"qmagic", no_argument, NULL, OPTION_IGNORE},
450 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
451 { {"reduce-memory-overheads", no_argument, NULL,
452 OPTION_REDUCE_MEMORY_OVERHEADS},
453 '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
455 { {"relax", no_argument, NULL, OPTION_RELAX},
456 '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES },
457 { {"retain-symbols-file", required_argument, NULL,
458 OPTION_RETAIN_SYMBOLS_FILE},
459 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
460 { {"rpath", required_argument, NULL, OPTION_RPATH},
461 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
462 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
463 '\0', N_("PATH"), N_("Set link time shared library search path"),
465 { {"shared", no_argument, NULL, OPTION_SHARED},
466 '\0', NULL, N_("Create a shared library"), ONE_DASH },
467 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
468 '\0', NULL, NULL, ONE_DASH },
469 { {"pie", no_argument, NULL, OPTION_PIE},
470 '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
471 { {"pic-executable", no_argument, NULL, OPTION_PIE},
472 '\0', NULL, NULL, TWO_DASHES },
473 { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
474 '\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
475 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
476 '\0', NULL, NULL, NO_HELP },
477 { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
478 '\0', N_("name|alignment"),
479 N_("Sort sections by name or maximum alignment"), TWO_DASHES },
480 { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
481 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
483 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
484 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
486 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
487 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
489 { {"stats", no_argument, NULL, OPTION_STATS},
490 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
491 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
492 '\0', NULL, N_("Display target specific options"), TWO_DASHES },
493 { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
494 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
495 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
496 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
497 { {"section-start", required_argument, NULL, OPTION_SECTION_START},
498 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
500 { {"Tbss", required_argument, NULL, OPTION_TBSS},
501 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
502 { {"Tdata", required_argument, NULL, OPTION_TDATA},
503 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
504 { {"Ttext", required_argument, NULL, OPTION_TTEXT},
505 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
506 { {"unresolved-symbols=<method>", required_argument, NULL,
507 OPTION_UNRESOLVED_SYMBOLS},
508 '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n"
509 "\t\t\t\tignore-all, report-all, ignore-in-object-files,\n"
510 "\t\t\t\tignore-in-shared-libs"), TWO_DASHES },
511 { {"verbose", no_argument, NULL, OPTION_VERBOSE},
512 '\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
513 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
514 '\0', NULL, NULL, NO_HELP },
515 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
516 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
517 { {"version-exports-section", required_argument, NULL,
518 OPTION_VERSION_EXPORTS_SECTION },
519 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
520 "\t\t\t\tSYMBOL as the version."), TWO_DASHES },
521 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
522 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
523 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
524 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
525 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
526 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
527 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
528 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
529 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
530 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
531 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
532 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
534 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
535 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
536 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
537 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
538 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
539 '\0', NULL, N_("Warn if start of section changes due to alignment"),
541 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
542 '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
544 { {"warn-unresolved-symbols", no_argument, NULL,
545 OPTION_WARN_UNRESOLVED_SYMBOLS},
546 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
547 { {"error-unresolved-symbols", no_argument, NULL,
548 OPTION_ERROR_UNRESOLVED_SYMBOLS},
549 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
550 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
551 '\0', NULL, N_("Include all objects from following archives"),
553 { {"wrap", required_argument, NULL, OPTION_WRAP},
554 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
557 #define OPTION_COUNT ARRAY_SIZE (ld_options)
560 parse_args (unsigned argc, char **argv)
565 char *default_dirlist = NULL;
567 struct option *longopts;
568 struct option *really_longopts;
570 enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
572 shortopts = xmalloc (OPTION_COUNT * 3 + 2);
573 longopts = xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
574 really_longopts = xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
576 /* Starting the short option string with '-' is for programs that
577 expect options and other ARGV-elements in any order and that care about
578 the ordering of the two. We describe each non-option ARGV-element
579 as if it were the argument of an option with character code 1. */
584 for (i = 0; i < OPTION_COUNT; i++)
586 if (ld_options[i].shortopt != '\0')
588 shortopts[is] = ld_options[i].shortopt;
590 if (ld_options[i].opt.has_arg == required_argument
591 || ld_options[i].opt.has_arg == optional_argument)
595 if (ld_options[i].opt.has_arg == optional_argument)
602 if (ld_options[i].opt.name != NULL)
604 if (ld_options[i].control == EXACTLY_TWO_DASHES)
606 really_longopts[irl] = ld_options[i].opt;
611 longopts[il] = ld_options[i].opt;
616 shortopts[is] = '\0';
617 longopts[il].name = NULL;
618 really_longopts[irl].name = NULL;
620 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
622 /* The -G option is ambiguous on different platforms. Sometimes it
623 specifies the largest data size to put into the small data
624 section. Sometimes it is equivalent to --shared. Unfortunately,
625 the first form takes an argument, while the second does not.
627 We need to permit the --shared form because on some platforms,
628 such as Solaris, gcc -shared will pass -G to the linker.
630 To permit either usage, we look through the argument list. If we
631 find -G not followed by a number, we change it into --shared.
632 This will work for most normal cases. */
633 for (i = 1; i < argc; i++)
634 if (strcmp (argv[i], "-G") == 0
636 || ! ISDIGIT (argv[i + 1][0])))
637 argv[i] = (char *) "--shared";
639 /* Because we permit long options to start with a single dash, and
640 we have a --library option, and the -l option is conventionally
641 used with an immediately following argument, we can have bad
642 results if somebody tries to use -l with a library whose name
643 happens to start with "ibrary", as in -li. We avoid problems by
644 simply turning -l into --library. This means that users will
645 have to use two dashes in order to use --library, which is OK
646 since that's how it is documented.
648 FIXME: It's possible that this problem can arise for other short
649 options as well, although the user does always have the recourse
650 of adding a space between the option and the argument. */
651 for (i = 1; i < argc; i++)
653 if (argv[i][0] == '-'
655 && argv[i][2] != '\0')
659 n = xmalloc (strlen (argv[i]) + 20);
660 sprintf (n, "--library=%s", argv[i] + 2);
671 /* Using last_optind lets us avoid calling ldemul_parse_args
672 multiple times on a single option, which would lead to
673 confusion in the internal static variables maintained by
674 getopt. This could otherwise happen for an argument like
675 -nx, in which the -n is parsed as a single option, and we
676 loop around to pick up the -x. */
677 if (optind != last_optind)
678 if (ldemul_parse_args (argc, argv))
681 /* getopt_long_only is like getopt_long, but '-' as well as '--'
682 can indicate a long option. */
684 last_optind = optind;
685 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
688 optind = last_optind;
689 optc = getopt_long (argc, argv, "-", really_longopts, &longind);
692 if (ldemul_handle_option (optc))
701 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
705 einfo (_("%P%F: use the --help option for usage information\n"));
707 case 1: /* File name. */
708 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
714 /* For HP/UX compatibility. Actually -a shared should mean
715 ``use only shared libraries'' but, then, we don't
716 currently support shared libraries on HP/UX anyhow. */
717 if (strcmp (optarg, "archive") == 0)
718 config.dynamic_link = FALSE;
719 else if (strcmp (optarg, "shared") == 0
720 || strcmp (optarg, "default") == 0)
721 config.dynamic_link = TRUE;
723 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
726 /* FIXME: We just ignore these, but we should handle them. */
727 if (strcmp (optarg, "definitions") == 0)
729 else if (strcmp (optarg, "nodefinitions") == 0)
731 else if (strcmp (optarg, "nosymbolic") == 0)
733 else if (strcmp (optarg, "pure-text") == 0)
736 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
739 ldfile_add_arch (optarg);
742 lang_add_target (optarg);
745 ldfile_open_command_file (optarg);
746 parser_input = input_mri_script;
749 case OPTION_CALL_SHARED:
750 config.dynamic_link = TRUE;
752 case OPTION_NON_SHARED:
753 config.dynamic_link = FALSE;
756 command_line.cref = TRUE;
757 link_info.notice_all = TRUE;
760 command_line.force_common_definition = TRUE;
764 lex_redirect (optarg);
765 parser_input = input_defsym;
771 case OPTION_DEMANGLE:
775 enum demangling_styles style;
777 style = cplus_demangle_name_to_style (optarg);
778 if (style == unknown_demangling)
779 einfo (_("%F%P: unknown demangling style `%s'"),
782 cplus_demangle_set_style (style);
785 case 'I': /* Used on Solaris. */
786 case OPTION_DYNAMIC_LINKER:
787 command_line.interpreter = optarg;
790 /* Already handled in ldmain.c. */
793 command_line.endian = ENDIAN_BIG;
796 command_line.endian = ENDIAN_LITTLE;
798 case OPTION_EMBEDDED_RELOCS:
799 command_line.embedded_relocs = TRUE;
801 case OPTION_EXPORT_DYNAMIC:
802 case 'E': /* HP/UX compatibility. */
803 link_info.export_dynamic = TRUE;
806 lang_add_entry (optarg, TRUE);
809 if (command_line.auxiliary_filters == NULL)
811 command_line.auxiliary_filters = xmalloc (2 * sizeof (char *));
812 command_line.auxiliary_filters[0] = optarg;
813 command_line.auxiliary_filters[1] = NULL;
821 for (p = command_line.auxiliary_filters; *p != NULL; p++)
823 command_line.auxiliary_filters
824 = xrealloc (command_line.auxiliary_filters,
825 (c + 2) * sizeof (char *));
826 command_line.auxiliary_filters[c] = optarg;
827 command_line.auxiliary_filters[c + 1] = NULL;
831 command_line.filter_shlib = optarg;
833 case OPTION_FORCE_EXE_SUFFIX:
834 command_line.force_exe_suffix = TRUE;
839 g_switch_value = strtoul (optarg, &end, 0);
841 einfo (_("%P%F: invalid number `%s'\n"), optarg);
847 case OPTION_GC_SECTIONS:
848 link_info.gc_sections = TRUE;
850 case OPTION_PRINT_GC_SECTIONS:
851 link_info.print_gc_sections = TRUE;
858 ldfile_add_library_path (optarg, TRUE);
861 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
864 config.map_filename = "-";
867 /* Ignore. Was handled in a pre-parse. */
870 config.map_filename = optarg;
873 config.text_read_only = FALSE;
874 config.magic_demand_paged = FALSE;
875 config.dynamic_link = FALSE;
877 case OPTION_NO_OMAGIC:
878 config.text_read_only = TRUE;
879 config.magic_demand_paged = TRUE;
880 /* NB/ Does not set dynamic_link to TRUE.
881 Use --call-shared or -Bdynamic for this. */
884 config.magic_demand_paged = FALSE;
885 config.dynamic_link = FALSE;
887 case OPTION_NO_DEFINE_COMMON:
888 command_line.inhibit_common_definition = TRUE;
890 case OPTION_NO_DEMANGLE:
893 case OPTION_NO_GC_SECTIONS:
894 link_info.gc_sections = FALSE;
896 case OPTION_NO_PRINT_GC_SECTIONS:
897 link_info.print_gc_sections = FALSE;
899 case OPTION_NO_KEEP_MEMORY:
900 link_info.keep_memory = FALSE;
902 case OPTION_NO_UNDEFINED:
903 link_info.unresolved_syms_in_objects
904 = how_to_report_unresolved_symbols;
906 case OPTION_ALLOW_SHLIB_UNDEFINED:
907 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
909 case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
910 link_info.unresolved_syms_in_shared_libs
911 = how_to_report_unresolved_symbols;
913 case OPTION_UNRESOLVED_SYMBOLS:
914 if (strcmp (optarg, "ignore-all") == 0)
916 link_info.unresolved_syms_in_objects = RM_IGNORE;
917 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
919 else if (strcmp (optarg, "report-all") == 0)
921 link_info.unresolved_syms_in_objects
922 = how_to_report_unresolved_symbols;
923 link_info.unresolved_syms_in_shared_libs
924 = how_to_report_unresolved_symbols;
926 else if (strcmp (optarg, "ignore-in-object-files") == 0)
928 link_info.unresolved_syms_in_objects = RM_IGNORE;
929 link_info.unresolved_syms_in_shared_libs
930 = how_to_report_unresolved_symbols;
932 else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
934 link_info.unresolved_syms_in_objects
935 = how_to_report_unresolved_symbols;
936 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
939 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
941 case OPTION_WARN_UNRESOLVED_SYMBOLS:
942 how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
943 if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
944 link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
945 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
946 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
949 case OPTION_ERROR_UNRESOLVED_SYMBOLS:
950 how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
951 if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
952 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
953 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
954 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
956 case OPTION_ALLOW_MULTIPLE_DEFINITION:
957 link_info.allow_multiple_definition = TRUE;
959 case OPTION_NO_UNDEFINED_VERSION:
960 link_info.allow_undefined_version = FALSE;
962 case OPTION_DEFAULT_SYMVER:
963 link_info.create_default_symver = TRUE;
965 case OPTION_DEFAULT_IMPORTED_SYMVER:
966 link_info.default_imported_symver = TRUE;
968 case OPTION_NO_WARN_MISMATCH:
969 command_line.warn_mismatch = FALSE;
971 case OPTION_NO_WARN_SEARCH_MISMATCH:
972 command_line.warn_search_mismatch = FALSE;
974 case OPTION_NOINHIBIT_EXEC:
975 force_make_executable = TRUE;
977 case OPTION_NOSTDLIB:
978 config.only_cmd_line_lib_dirs = TRUE;
980 case OPTION_NO_WHOLE_ARCHIVE:
981 whole_archive = FALSE;
984 /* FIXME "-O<non-digits> <value>" used to set the address of
985 section <non-digits>. Was this for compatibility with
986 something, or can we create a new option to do that
987 (with a syntax similar to -defsym)?
988 getopt can't handle two args to an option without kludges. */
990 /* Enable optimizations of output files. */
991 link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
994 lang_add_output (optarg, 0);
997 lang_add_output_format (optarg, NULL, NULL, 0);
1000 link_info.emitrelocations = TRUE;
1004 if (optind == last_optind)
1005 /* This can happen if the user put "-rpath,a" on the command
1006 line. (Or something similar. The comma is important).
1007 Getopt becomes confused and thinks that this is a -r option
1008 but it cannot parse the text after the -r so it refuses to
1009 increment the optind counter. Detect this case and issue
1010 an error message here. We cannot just make this a warning,
1011 increment optind, and continue because getopt is too confused
1012 and will seg-fault the next time around. */
1013 einfo(_("%P%F: bad -rpath option\n"));
1015 link_info.relocatable = TRUE;
1016 config.build_constructors = FALSE;
1017 config.magic_demand_paged = FALSE;
1018 config.text_read_only = FALSE;
1019 config.dynamic_link = FALSE;
1022 /* The GNU linker traditionally uses -R to mean to include
1023 only the symbols from a file. The Solaris linker uses -R
1024 to set the path used by the runtime linker to find
1025 libraries. This is the GNU linker -rpath argument. We
1026 try to support both simultaneously by checking the file
1027 named. If it is a directory, rather than a regular file,
1028 we assume -rpath was meant. */
1032 if (stat (optarg, &s) >= 0
1033 && ! S_ISDIR (s.st_mode))
1035 lang_add_input_file (optarg,
1036 lang_input_file_is_symbols_only_enum,
1043 if (command_line.rpath == NULL)
1044 command_line.rpath = xstrdup (optarg);
1047 size_t rpath_len = strlen (command_line.rpath);
1048 size_t optarg_len = strlen (optarg);
1050 char *cp = command_line.rpath;
1052 /* First see whether OPTARG is already in the path. */
1055 if (strncmp (optarg, cp, optarg_len) == 0
1056 && (cp[optarg_len] == 0
1057 || cp[optarg_len] == config.rpath_separator))
1061 /* Not yet found. */
1062 cp = strchr (cp, config.rpath_separator);
1070 buf = xmalloc (rpath_len + optarg_len + 2);
1071 sprintf (buf, "%s%c%s", command_line.rpath,
1072 config.rpath_separator, optarg);
1073 free (command_line.rpath);
1074 command_line.rpath = buf;
1078 case OPTION_RPATH_LINK:
1079 if (command_line.rpath_link == NULL)
1080 command_line.rpath_link = xstrdup (optarg);
1085 buf = xmalloc (strlen (command_line.rpath_link)
1088 sprintf (buf, "%s%c%s", command_line.rpath_link,
1089 config.rpath_separator, optarg);
1090 free (command_line.rpath_link);
1091 command_line.rpath_link = buf;
1095 command_line.relax = TRUE;
1097 case OPTION_RETAIN_SYMBOLS_FILE:
1098 add_keepsyms_file (optarg);
1101 link_info.strip = strip_debugger;
1104 link_info.strip = strip_all;
1106 case OPTION_STRIP_DISCARDED:
1107 link_info.strip_discarded = TRUE;
1109 case OPTION_NO_STRIP_DISCARDED:
1110 link_info.strip_discarded = FALSE;
1113 if (config.has_shared)
1115 link_info.shared = TRUE;
1116 /* When creating a shared library, the default
1117 behaviour is to ignore any unresolved references. */
1118 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1119 link_info.unresolved_syms_in_objects = RM_IGNORE;
1120 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1121 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1124 einfo (_("%P%F: -shared not supported\n"));
1127 if (config.has_shared)
1129 link_info.shared = TRUE;
1130 link_info.pie = TRUE;
1133 einfo (_("%P%F: -pie not supported\n"));
1135 case 'h': /* Used on Solaris. */
1137 command_line.soname = optarg;
1139 case OPTION_SORT_COMMON:
1140 config.sort_common = TRUE;
1142 case OPTION_SORT_SECTION:
1143 if (strcmp (optarg, N_("name")) == 0)
1144 sort_section = by_name;
1145 else if (strcmp (optarg, N_("alignment")) == 0)
1146 sort_section = by_alignment;
1148 einfo (_("%P%F: invalid section sorting option: %s\n"),
1152 config.stats = TRUE;
1154 case OPTION_SYMBOLIC:
1155 command_line.symbolic = symbolic;
1157 case OPTION_SYMBOLIC_FUNCTIONS:
1158 command_line.symbolic = symbolic_functions;
1164 ldfile_open_command_file (optarg);
1165 parser_input = input_script;
1168 case OPTION_DEFAULT_SCRIPT:
1169 command_line.default_script = optarg;
1171 case OPTION_SECTION_START:
1177 /* Check for <something>=<somthing>... */
1178 optarg2 = strchr (optarg, '=');
1179 if (optarg2 == NULL)
1180 einfo (_("%P%F: invalid argument to option"
1181 " \"--section-start\"\n"));
1185 /* So far so good. Are all the args present? */
1186 if ((*optarg == '\0') || (*optarg2 == '\0'))
1187 einfo (_("%P%F: missing argument(s) to option"
1188 " \"--section-start\"\n"));
1190 /* We must copy the section name as set_section_start
1191 doesn't do it for us. */
1192 len = optarg2 - optarg;
1193 sec_name = xmalloc (len);
1194 memcpy (sec_name, optarg, len - 1);
1195 sec_name[len - 1] = 0;
1197 /* Then set it... */
1198 set_section_start (sec_name, optarg2);
1201 case OPTION_TARGET_HELP:
1202 /* Mention any target specific options. */
1203 ldemul_list_emulation_options (stdout);
1206 set_segment_start (".bss", optarg);
1209 set_segment_start (".data", optarg);
1212 set_segment_start (".text", optarg);
1214 case OPTION_TRADITIONAL_FORMAT:
1215 link_info.traditional_format = TRUE;
1217 case OPTION_TASK_LINK:
1218 link_info.task_link = TRUE;
1219 /* Fall through - do an implied -r option. */
1221 link_info.relocatable = TRUE;
1222 config.build_constructors = TRUE;
1223 config.magic_demand_paged = FALSE;
1224 config.text_read_only = FALSE;
1225 config.dynamic_link = FALSE;
1228 ldlang_add_undef (optarg);
1232 lang_add_unique (optarg);
1234 config.unique_orphan_sections = TRUE;
1236 case OPTION_VERBOSE:
1238 version_printed = TRUE;
1239 trace_file_tries = TRUE;
1240 overflow_cutoff_limit = -2;
1244 version_printed = TRUE;
1248 version_printed = TRUE;
1250 case OPTION_VERSION:
1254 case OPTION_VERSION_SCRIPT:
1255 /* This option indicates a small script that only specifies
1256 version information. Read it, but don't assume that
1257 we've seen a linker script. */
1259 FILE *hold_script_handle;
1261 hold_script_handle = saved_script_handle;
1262 ldfile_open_command_file (optarg);
1263 saved_script_handle = hold_script_handle;
1264 parser_input = input_version_script;
1268 case OPTION_VERSION_EXPORTS_SECTION:
1269 /* This option records a version symbol to be applied to the
1270 symbols listed for export to be found in the object files
1271 .exports sections. */
1272 command_line.version_exports_section = optarg;
1274 case OPTION_DYNAMIC_LIST_DATA:
1275 command_line.dynamic_list = dynamic_list_data;
1276 if (command_line.symbolic == symbolic)
1277 command_line.symbolic = symbolic_unset;
1279 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1280 lang_append_dynamic_list_cpp_typeinfo ();
1281 if (command_line.dynamic_list != dynamic_list_data)
1282 command_line.dynamic_list = dynamic_list;
1283 if (command_line.symbolic == symbolic)
1284 command_line.symbolic = symbolic_unset;
1286 case OPTION_DYNAMIC_LIST_CPP_NEW:
1287 lang_append_dynamic_list_cpp_new ();
1288 if (command_line.dynamic_list != dynamic_list_data)
1289 command_line.dynamic_list = dynamic_list;
1290 if (command_line.symbolic == symbolic)
1291 command_line.symbolic = symbolic_unset;
1293 case OPTION_DYNAMIC_LIST:
1294 /* This option indicates a small script that only specifies
1295 a dynamic list. Read it, but don't assume that we've
1296 seen a linker script. */
1298 FILE *hold_script_handle;
1300 hold_script_handle = saved_script_handle;
1301 ldfile_open_command_file (optarg);
1302 saved_script_handle = hold_script_handle;
1303 parser_input = input_dynamic_list;
1306 if (command_line.dynamic_list != dynamic_list_data)
1307 command_line.dynamic_list = dynamic_list;
1308 if (command_line.symbolic == symbolic)
1309 command_line.symbolic = symbolic_unset;
1311 case OPTION_WARN_COMMON:
1312 config.warn_common = TRUE;
1314 case OPTION_WARN_CONSTRUCTORS:
1315 config.warn_constructors = TRUE;
1317 case OPTION_WARN_FATAL:
1318 config.fatal_warnings = TRUE;
1320 case OPTION_WARN_MULTIPLE_GP:
1321 config.warn_multiple_gp = TRUE;
1323 case OPTION_WARN_ONCE:
1324 config.warn_once = TRUE;
1326 case OPTION_WARN_SECTION_ALIGN:
1327 config.warn_section_align = TRUE;
1329 case OPTION_WARN_SHARED_TEXTREL:
1330 link_info.warn_shared_textrel = TRUE;
1332 case OPTION_WHOLE_ARCHIVE:
1333 whole_archive = TRUE;
1335 case OPTION_ADD_NEEDED:
1338 case OPTION_NO_ADD_NEEDED:
1341 case OPTION_AS_NEEDED:
1344 case OPTION_NO_AS_NEEDED:
1350 case OPTION_DISCARD_NONE:
1351 link_info.discard = discard_none;
1354 link_info.discard = discard_l;
1357 link_info.discard = discard_all;
1360 if (CONST_STRNEQ (optarg, "P,"))
1362 if (default_dirlist != NULL)
1363 free (default_dirlist);
1364 default_dirlist = xstrdup (optarg);
1369 case OPTION_SPARE_DYNAMIC_TAGS:
1370 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1372 case OPTION_SPLIT_BY_RELOC:
1374 config.split_by_reloc = strtoul (optarg, NULL, 0);
1376 config.split_by_reloc = 32768;
1378 case OPTION_SPLIT_BY_FILE:
1380 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1382 config.split_by_file = 1;
1384 case OPTION_CHECK_SECTIONS:
1385 command_line.check_section_addresses = TRUE;
1387 case OPTION_NO_CHECK_SECTIONS:
1388 command_line.check_section_addresses = FALSE;
1390 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1391 command_line.accept_unknown_input_arch = TRUE;
1393 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1394 command_line.accept_unknown_input_arch = FALSE;
1398 einfo (_("%P%F: may not nest groups (--help for usage)\n"));
1400 lang_enter_group ();
1405 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1407 lang_leave_group ();
1412 link_info.init_function = optarg;
1416 link_info.fini_function = optarg;
1419 case OPTION_REDUCE_MEMORY_OVERHEADS:
1420 link_info.reduce_memory_overheads = TRUE;
1421 if (config.hash_table_size == 0)
1422 config.hash_table_size = 1021;
1425 case OPTION_HASH_SIZE:
1427 bfd_size_type new_size;
1429 new_size = strtoul (optarg, NULL, 0);
1431 config.hash_table_size = new_size;
1433 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1440 lang_leave_group ();
1442 if (default_dirlist != NULL)
1444 set_default_dirlist (default_dirlist);
1445 free (default_dirlist);
1448 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1449 /* FIXME: Should we allow emulations a chance to set this ? */
1450 link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1452 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1453 /* FIXME: Should we allow emulations a chance to set this ? */
1454 link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1457 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1458 library search path. */
1461 set_default_dirlist (char *dirlist_ptr)
1467 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1470 if (*dirlist_ptr != '\0')
1471 ldfile_add_library_path (dirlist_ptr, TRUE);
1474 dirlist_ptr = p + 1;
1479 set_section_start (char *sect, char *valstr)
1482 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1484 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1485 lang_section_start (sect, exp_intop (val), NULL);
1489 set_segment_start (const char *section, char *valstr)
1495 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1497 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1498 /* If we already have an entry for this segment, update the existing
1501 for (seg = segments; seg; seg = seg->next)
1502 if (strcmp (seg->name, name) == 0)
1507 /* There was no existing value so we must create a new segment
1509 seg = stat_alloc (sizeof (*seg));
1513 /* Add it to the linked list of segments. */
1514 seg->next = segments;
1516 /* Historically, -Ttext and friends set the base address of a
1517 particular section. For backwards compatibility, we still do
1518 that. If a SEGMENT_START directive is seen, the section address
1519 assignment will be disabled. */
1520 lang_section_start (section, exp_intop (val), seg);
1524 /* Print help messages for the options. */
1530 const char **targets, **pp;
1533 printf (_("Usage: %s [options] file...\n"), program_name);
1535 printf (_("Options:\n"));
1536 for (i = 0; i < OPTION_COUNT; i++)
1538 if (ld_options[i].doc != NULL)
1551 if (ld_options[j].shortopt != '\0'
1552 && ld_options[j].control != NO_HELP)
1554 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1555 len += (comma ? 2 : 0) + 2;
1556 if (ld_options[j].arg != NULL)
1558 if (ld_options[j].opt.has_arg != optional_argument)
1563 printf ("%s", _(ld_options[j].arg));
1564 len += strlen (_(ld_options[j].arg));
1570 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1575 if (ld_options[j].opt.name != NULL
1576 && ld_options[j].control != NO_HELP)
1579 (ld_options[j].control == TWO_DASHES
1580 || ld_options[j].control == EXACTLY_TWO_DASHES);
1584 two_dashes ? "-" : "",
1585 ld_options[j].opt.name);
1586 len += ((comma ? 2 : 0)
1588 + (two_dashes ? 1 : 0)
1589 + strlen (ld_options[j].opt.name));
1590 if (ld_options[j].arg != NULL)
1592 printf (" %s", _(ld_options[j].arg));
1593 len += 1 + strlen (_(ld_options[j].arg));
1599 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1607 for (; len < 30; len++)
1610 printf ("%s\n", _(ld_options[i].doc));
1613 printf (_(" @FILE"));
1614 for (len = strlen (" @FILE"); len < 30; len++)
1616 printf (_("Read options from FILE\n"));
1618 /* Note: Various tools (such as libtool) depend upon the
1619 format of the listings below - do not change them. */
1620 /* xgettext:c-format */
1621 printf (_("%s: supported targets:"), program_name);
1622 targets = bfd_target_list ();
1623 for (pp = targets; *pp != NULL; pp++)
1624 printf (" %s", *pp);
1628 /* xgettext:c-format */
1629 printf (_("%s: supported emulations: "), program_name);
1630 ldemul_list_emulations (stdout);
1633 /* xgettext:c-format */
1634 printf (_("%s: emulation specific options:\n"), program_name);
1635 ldemul_list_emulation_options (stdout);
1638 if (REPORT_BUGS_TO[0])
1639 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);