1 /* Parse options for the GNU linker.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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, 59 Temple Place - Suite 330, Boston, MA
25 #include "libiberty.h"
28 #include "safe-ctype.h"
43 #ifndef PATH_SEPARATOR
44 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
45 #define PATH_SEPARATOR ';'
47 #define PATH_SEPARATOR ':'
51 /* Somewhere above, sys/stat.h got included . . . . */
52 #if !defined(S_ISDIR) && defined(S_IFDIR)
53 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
56 static void set_default_dirlist (char *);
57 static void set_section_start (char *, char *);
58 static void help (void);
60 /* Non-zero if we are processing a --defsym from the command line. */
61 int parsing_defsym
= 0;
63 /* Codes used for the long options with no short synonyms. 150 isn't
64 special; it's just an arbitrary non-ASCII char value. */
72 OPTION_DYNAMIC_LINKER
,
75 OPTION_EMBEDDED_RELOCS
,
76 OPTION_EXPORT_DYNAMIC
,
81 OPTION_NO_KEEP_MEMORY
,
82 OPTION_NO_WARN_MISMATCH
,
83 OPTION_NOINHIBIT_EXEC
,
85 OPTION_NO_WHOLE_ARCHIVE
,
88 OPTION_RETAIN_SYMBOLS_FILE
,
100 OPTION_TRADITIONAL_FORMAT
,
104 OPTION_VERSION_SCRIPT
,
105 OPTION_VERSION_EXPORTS_SECTION
,
107 OPTION_WARN_CONSTRUCTORS
,
109 OPTION_WARN_MULTIPLE_GP
,
111 OPTION_WARN_SECTION_ALIGN
,
112 OPTION_SPLIT_BY_RELOC
,
113 OPTION_SPLIT_BY_FILE
,
114 OPTION_WHOLE_ARCHIVE
,
116 OPTION_NO_ADD_NEEDED
,
120 OPTION_FORCE_EXE_SUFFIX
,
122 OPTION_NO_GC_SECTIONS
,
124 OPTION_CHECK_SECTIONS
,
125 OPTION_NO_CHECK_SECTIONS
,
129 OPTION_SECTION_START
,
132 OPTION_ALLOW_SHLIB_UNDEFINED
,
133 OPTION_NO_ALLOW_SHLIB_UNDEFINED
,
134 OPTION_ALLOW_MULTIPLE_DEFINITION
,
135 OPTION_NO_UNDEFINED_VERSION
,
137 OPTION_SPARE_DYNAMIC_TAGS
,
138 OPTION_NO_DEFINE_COMMON
,
141 OPTION_STRIP_DISCARDED
,
142 OPTION_NO_STRIP_DISCARDED
,
143 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
,
144 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
,
146 OPTION_UNRESOLVED_SYMBOLS
,
147 OPTION_WARN_UNRESOLVED_SYMBOLS
,
148 OPTION_ERROR_UNRESOLVED_SYMBOLS
,
149 OPTION_REDUCE_MEMORY_OVERHEADS
152 /* The long options. This structure is used for both the option
153 parsing and the help text. */
157 /* The long option information. */
159 /* The short option with the same meaning ('\0' if none). */
161 /* The name of the argument (NULL if none). */
163 /* The documentation string. If this is NULL, this is a synonym for
164 the previous option. */
167 /* Use one dash before long option name. */
169 /* Use two dashes before long option name. */
171 /* Only accept two dashes before the long option name.
172 This is an overloading of the use of this enum, since originally it
173 was only intended to tell the --help display function how to display
174 the long option name. This feature was added in order to resolve
175 the confusion about the -omagic command line switch. Is it setting
176 the output file name to "magic" or is it setting the NMAGIC flag on
177 the output ? It has been decided that it is setting the output file
178 name, and that if you want to set the NMAGIC flag you should use -N
181 /* Don't mention this option in --help output. */
186 static const struct ld_option ld_options
[] =
188 { {NULL
, required_argument
, NULL
, '\0'},
189 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
191 { {"architecture", required_argument
, NULL
, 'A'},
192 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES
},
193 { {"format", required_argument
, NULL
, 'b'},
194 'b', N_("TARGET"), N_("Specify target for following input files"),
196 { {"mri-script", required_argument
, NULL
, 'c'},
197 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES
},
198 { {"dc", no_argument
, NULL
, 'd'},
199 'd', NULL
, N_("Force common symbols to be defined"), ONE_DASH
},
200 { {"dp", no_argument
, NULL
, 'd'},
201 '\0', NULL
, NULL
, ONE_DASH
},
202 { {"entry", required_argument
, NULL
, 'e'},
203 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES
},
204 { {"export-dynamic", no_argument
, NULL
, OPTION_EXPORT_DYNAMIC
},
205 'E', NULL
, N_("Export all dynamic symbols"), TWO_DASHES
},
206 { {"EB", no_argument
, NULL
, OPTION_EB
},
207 '\0', NULL
, N_("Link big-endian objects"), ONE_DASH
},
208 { {"EL", no_argument
, NULL
, OPTION_EL
},
209 '\0', NULL
, N_("Link little-endian objects"), ONE_DASH
},
210 { {"auxiliary", required_argument
, NULL
, 'f'},
211 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
213 { {"filter", required_argument
, NULL
, 'F'},
214 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
216 { {NULL
, no_argument
, NULL
, '\0'},
217 'g', NULL
, N_("Ignored"), ONE_DASH
},
218 { {"gpsize", required_argument
, NULL
, 'G'},
219 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
221 { {"soname", required_argument
, NULL
, OPTION_SONAME
},
222 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH
},
223 { {"dynamic-linker", required_argument
, NULL
, OPTION_DYNAMIC_LINKER
},
224 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
226 { {"library", required_argument
, NULL
, 'l'},
227 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES
},
228 { {"library-path", required_argument
, NULL
, 'L'},
229 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
231 { {NULL
, required_argument
, NULL
, '\0'},
232 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH
},
233 { {"print-map", no_argument
, NULL
, 'M'},
234 'M', NULL
, N_("Print map file on standard output"), TWO_DASHES
},
235 { {"nmagic", no_argument
, NULL
, 'n'},
236 'n', NULL
, N_("Do not page align data"), TWO_DASHES
},
237 { {"omagic", no_argument
, NULL
, 'N'},
238 'N', NULL
, N_("Do not page align data, do not make text readonly"),
239 EXACTLY_TWO_DASHES
},
240 { {"no-omagic", no_argument
, NULL
, OPTION_NO_OMAGIC
},
241 '\0', NULL
, N_("Page align data, make text readonly"),
242 EXACTLY_TWO_DASHES
},
243 { {"output", required_argument
, NULL
, 'o'},
244 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES
},
245 { {NULL
, required_argument
, NULL
, '\0'},
246 'O', NULL
, N_("Optimize output file"), ONE_DASH
},
247 { {"Qy", no_argument
, NULL
, OPTION_IGNORE
},
248 '\0', NULL
, N_("Ignored for SVR4 compatibility"), ONE_DASH
},
249 { {"emit-relocs", no_argument
, NULL
, 'q'},
250 'q', NULL
, "Generate relocations in final output", TWO_DASHES
},
251 { {"relocatable", no_argument
, NULL
, 'r'},
252 'r', NULL
, N_("Generate relocatable output"), TWO_DASHES
},
253 { {NULL
, no_argument
, NULL
, '\0'},
254 'i', NULL
, NULL
, ONE_DASH
},
255 { {"just-symbols", required_argument
, NULL
, 'R'},
256 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
258 { {"strip-all", no_argument
, NULL
, 's'},
259 's', NULL
, N_("Strip all symbols"), TWO_DASHES
},
260 { {"strip-debug", no_argument
, NULL
, 'S'},
261 'S', NULL
, N_("Strip debugging symbols"), TWO_DASHES
},
262 { {"strip-discarded", no_argument
, NULL
, OPTION_STRIP_DISCARDED
},
263 '\0', NULL
, N_("Strip symbols in discarded sections"), TWO_DASHES
},
264 { {"no-strip-discarded", no_argument
, NULL
, OPTION_NO_STRIP_DISCARDED
},
265 '\0', NULL
, N_("Do not strip symbols in discarded sections"), TWO_DASHES
},
266 { {"trace", no_argument
, NULL
, 't'},
267 't', NULL
, N_("Trace file opens"), TWO_DASHES
},
268 { {"script", required_argument
, NULL
, 'T'},
269 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES
},
270 { {"undefined", required_argument
, NULL
, 'u'},
271 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
273 { {"unique", optional_argument
, NULL
, OPTION_UNIQUE
},
274 '\0', N_("[=SECTION]"),
275 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES
},
276 { {"Ur", no_argument
, NULL
, OPTION_UR
},
277 '\0', NULL
, N_("Build global constructor/destructor tables"), ONE_DASH
},
278 { {"version", no_argument
, NULL
, OPTION_VERSION
},
279 'v', NULL
, N_("Print version information"), TWO_DASHES
},
280 { {NULL
, no_argument
, NULL
, '\0'},
281 'V', NULL
, N_("Print version and emulation information"), ONE_DASH
},
282 { {"discard-all", no_argument
, NULL
, 'x'},
283 'x', NULL
, N_("Discard all local symbols"), TWO_DASHES
},
284 { {"discard-locals", no_argument
, NULL
, 'X'},
285 'X', NULL
, N_("Discard temporary local symbols (default)"), TWO_DASHES
},
286 { {"discard-none", no_argument
, NULL
, OPTION_DISCARD_NONE
},
287 '\0', NULL
, N_("Don't discard any local symbols"), TWO_DASHES
},
288 { {"trace-symbol", required_argument
, NULL
, 'y'},
289 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES
},
290 { {NULL
, required_argument
, NULL
, '\0'},
291 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
293 { {"start-group", no_argument
, NULL
, '('},
294 '(', NULL
, N_("Start a group"), TWO_DASHES
},
295 { {"end-group", no_argument
, NULL
, ')'},
296 ')', NULL
, N_("End a group"), TWO_DASHES
},
297 { {"accept-unknown-input-arch", no_argument
, NULL
,
298 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
},
300 N_("Accept input files whose architecture cannot be determined"),
302 { {"no-accept-unknown-input-arch", no_argument
, NULL
,
303 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
},
304 '\0', NULL
, N_("Reject input files whose architecture is unknown"),
306 { {"assert", required_argument
, NULL
, OPTION_ASSERT
},
307 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH
},
308 { {"Bdynamic", no_argument
, NULL
, OPTION_CALL_SHARED
},
309 '\0', NULL
, N_("Link against shared libraries"), ONE_DASH
},
310 { {"dy", no_argument
, NULL
, OPTION_CALL_SHARED
},
311 '\0', NULL
, NULL
, ONE_DASH
},
312 { {"call_shared", no_argument
, NULL
, OPTION_CALL_SHARED
},
313 '\0', NULL
, NULL
, ONE_DASH
},
314 { {"Bstatic", no_argument
, NULL
, OPTION_NON_SHARED
},
315 '\0', NULL
, N_("Do not link against shared libraries"), ONE_DASH
},
316 { {"dn", no_argument
, NULL
, OPTION_NON_SHARED
},
317 '\0', NULL
, NULL
, ONE_DASH
},
318 { {"non_shared", no_argument
, NULL
, OPTION_NON_SHARED
},
319 '\0', NULL
, NULL
, ONE_DASH
},
320 { {"static", no_argument
, NULL
, OPTION_NON_SHARED
},
321 '\0', NULL
, NULL
, ONE_DASH
},
322 { {"Bsymbolic", no_argument
, NULL
, OPTION_SYMBOLIC
},
323 '\0', NULL
, N_("Bind global references locally"), ONE_DASH
},
324 { {"check-sections", no_argument
, NULL
, OPTION_CHECK_SECTIONS
},
325 '\0', NULL
, N_("Check section addresses for overlaps (default)"),
327 { {"no-check-sections", no_argument
, NULL
, OPTION_NO_CHECK_SECTIONS
},
328 '\0', NULL
, N_("Do not check section addresses for overlaps"),
330 { {"cref", no_argument
, NULL
, OPTION_CREF
},
331 '\0', NULL
, N_("Output cross reference table"), TWO_DASHES
},
332 { {"defsym", required_argument
, NULL
, OPTION_DEFSYM
},
333 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES
},
334 { {"demangle", optional_argument
, NULL
, OPTION_DEMANGLE
},
335 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
337 { {"embedded-relocs", no_argument
, NULL
, OPTION_EMBEDDED_RELOCS
},
338 '\0', NULL
, N_("Generate embedded relocs"), TWO_DASHES
},
339 { {"fini", required_argument
, NULL
, OPTION_FINI
},
340 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH
},
341 { {"force-exe-suffix", no_argument
, NULL
, OPTION_FORCE_EXE_SUFFIX
},
342 '\0', NULL
, N_("Force generation of file with .exe suffix"), TWO_DASHES
},
343 { {"gc-sections", no_argument
, NULL
, OPTION_GC_SECTIONS
},
344 '\0', NULL
, N_("Remove unused sections (on some targets)"),
346 { {"no-gc-sections", no_argument
, NULL
, OPTION_NO_GC_SECTIONS
},
347 '\0', NULL
, N_("Don't remove unused sections (default)"),
349 { {"hash-size=<NUMBER>", required_argument
, NULL
, OPTION_HASH_SIZE
},
350 '\0', NULL
, N_("Set default hash table size close to <NUMBER>"),
352 { {"help", no_argument
, NULL
, OPTION_HELP
},
353 '\0', NULL
, N_("Print option help"), TWO_DASHES
},
354 { {"init", required_argument
, NULL
, OPTION_INIT
},
355 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH
},
356 { {"Map", required_argument
, NULL
, OPTION_MAP
},
357 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH
},
358 { {"no-define-common", no_argument
, NULL
, OPTION_NO_DEFINE_COMMON
},
359 '\0', NULL
, N_("Do not define Common storage"), TWO_DASHES
},
360 { {"no-demangle", no_argument
, NULL
, OPTION_NO_DEMANGLE
},
361 '\0', NULL
, N_("Do not demangle symbol names"), TWO_DASHES
},
362 { {"no-keep-memory", no_argument
, NULL
, OPTION_NO_KEEP_MEMORY
},
363 '\0', NULL
, N_("Use less memory and more disk I/O"), TWO_DASHES
},
364 { {"no-undefined", no_argument
, NULL
, OPTION_NO_UNDEFINED
},
365 '\0', NULL
, N_("Do not allow unresolved references in object files"),
367 { {"allow-shlib-undefined", no_argument
, NULL
, OPTION_ALLOW_SHLIB_UNDEFINED
},
368 '\0', NULL
, N_("Allow unresolved references in shared libaries"),
370 { {"no-allow-shlib-undefined", no_argument
, NULL
,
371 OPTION_NO_ALLOW_SHLIB_UNDEFINED
},
372 '\0', NULL
, N_("Do not allow unresolved references in shared libs"),
374 { {"allow-multiple-definition", no_argument
, NULL
,
375 OPTION_ALLOW_MULTIPLE_DEFINITION
},
376 '\0', NULL
, N_("Allow multiple definitions"), TWO_DASHES
},
377 { {"no-undefined-version", no_argument
, NULL
, OPTION_NO_UNDEFINED_VERSION
},
378 '\0', NULL
, N_("Disallow undefined version"), TWO_DASHES
},
379 { {"no-warn-mismatch", no_argument
, NULL
, OPTION_NO_WARN_MISMATCH
},
380 '\0', NULL
, N_("Don't warn about mismatched input files"), TWO_DASHES
},
381 { {"no-whole-archive", no_argument
, NULL
, OPTION_NO_WHOLE_ARCHIVE
},
382 '\0', NULL
, N_("Turn off --whole-archive"), TWO_DASHES
},
383 { {"noinhibit-exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
384 '\0', NULL
, N_("Create an output file even if errors occur"),
386 { {"noinhibit_exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
387 '\0', NULL
, NULL
, NO_HELP
},
388 { {"nostdlib", no_argument
, NULL
, OPTION_NOSTDLIB
},
389 '\0', NULL
, N_("Only use library directories specified on\n"
390 "\t\t\t\tthe command line"), ONE_DASH
},
391 { {"oformat", required_argument
, NULL
, OPTION_OFORMAT
},
392 '\0', N_("TARGET"), N_("Specify target of output file"),
393 EXACTLY_TWO_DASHES
},
394 { {"qmagic", no_argument
, NULL
, OPTION_IGNORE
},
395 '\0', NULL
, N_("Ignored for Linux compatibility"), ONE_DASH
},
396 { {"reduce-memory-overheads", no_argument
, NULL
,
397 OPTION_REDUCE_MEMORY_OVERHEADS
},
398 '\0', NULL
, N_("Reduce memory overheads, possibly taking much longer"),
400 { {"relax", no_argument
, NULL
, OPTION_RELAX
},
401 '\0', NULL
, N_("Relax branches on certain targets"), TWO_DASHES
},
402 { {"retain-symbols-file", required_argument
, NULL
,
403 OPTION_RETAIN_SYMBOLS_FILE
},
404 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES
},
405 { {"rpath", required_argument
, NULL
, OPTION_RPATH
},
406 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH
},
407 { {"rpath-link", required_argument
, NULL
, OPTION_RPATH_LINK
},
408 '\0', N_("PATH"), N_("Set link time shared library search path"),
410 { {"shared", no_argument
, NULL
, OPTION_SHARED
},
411 '\0', NULL
, N_("Create a shared library"), ONE_DASH
},
412 { {"Bshareable", no_argument
, NULL
, OPTION_SHARED
}, /* FreeBSD. */
413 '\0', NULL
, NULL
, ONE_DASH
},
414 { {"pie", no_argument
, NULL
, OPTION_PIE
},
415 '\0', NULL
, N_("Create a position independent executable"), ONE_DASH
},
416 { {"pic-executable", no_argument
, NULL
, OPTION_PIE
},
417 '\0', NULL
, NULL
, TWO_DASHES
},
418 { {"sort-common", no_argument
, NULL
, OPTION_SORT_COMMON
},
419 '\0', NULL
, N_("Sort common symbols by size"), TWO_DASHES
},
420 { {"sort_common", no_argument
, NULL
, OPTION_SORT_COMMON
},
421 '\0', NULL
, NULL
, NO_HELP
},
422 { {"spare-dynamic-tags", required_argument
, NULL
, OPTION_SPARE_DYNAMIC_TAGS
},
423 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
425 { {"split-by-file", optional_argument
, NULL
, OPTION_SPLIT_BY_FILE
},
426 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
428 { {"split-by-reloc", optional_argument
, NULL
, OPTION_SPLIT_BY_RELOC
},
429 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
431 { {"stats", no_argument
, NULL
, OPTION_STATS
},
432 '\0', NULL
, N_("Print memory usage statistics"), TWO_DASHES
},
433 { {"target-help", no_argument
, NULL
, OPTION_TARGET_HELP
},
434 '\0', NULL
, N_("Display target specific options"), TWO_DASHES
},
435 { {"task-link", required_argument
, NULL
, OPTION_TASK_LINK
},
436 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES
},
437 { {"traditional-format", no_argument
, NULL
, OPTION_TRADITIONAL_FORMAT
},
438 '\0', NULL
, N_("Use same format as native linker"), TWO_DASHES
},
439 { {"section-start", required_argument
, NULL
, OPTION_SECTION_START
},
440 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
442 { {"Tbss", required_argument
, NULL
, OPTION_TBSS
},
443 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH
},
444 { {"Tdata", required_argument
, NULL
, OPTION_TDATA
},
445 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH
},
446 { {"Ttext", required_argument
, NULL
, OPTION_TTEXT
},
447 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH
},
448 { {"unresolved-symbols=<method>", required_argument
, NULL
,
449 OPTION_UNRESOLVED_SYMBOLS
},
450 '\0', NULL
, N_("How to handle unresolved symbols. <method> is:\n"
451 "\t\t\t\tignore-all, report-all, ignore-in-object-files,\n"
452 "\t\t\t\tignore-in-shared-libs"), TWO_DASHES
},
453 { {"verbose", no_argument
, NULL
, OPTION_VERBOSE
},
454 '\0', NULL
, N_("Output lots of information during link"), TWO_DASHES
},
455 { {"dll-verbose", no_argument
, NULL
, OPTION_VERBOSE
}, /* Linux. */
456 '\0', NULL
, NULL
, NO_HELP
},
457 { {"version-script", required_argument
, NULL
, OPTION_VERSION_SCRIPT
},
458 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES
},
459 { {"version-exports-section", required_argument
, NULL
,
460 OPTION_VERSION_EXPORTS_SECTION
},
461 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
462 "\t\t\t\tSYMBOL as the version."), TWO_DASHES
},
463 { {"warn-common", no_argument
, NULL
, OPTION_WARN_COMMON
},
464 '\0', NULL
, N_("Warn about duplicate common symbols"), TWO_DASHES
},
465 { {"warn-constructors", no_argument
, NULL
, OPTION_WARN_CONSTRUCTORS
},
466 '\0', NULL
, N_("Warn if global constructors/destructors are seen"),
468 { {"warn-multiple-gp", no_argument
, NULL
, OPTION_WARN_MULTIPLE_GP
},
469 '\0', NULL
, N_("Warn if the multiple GP values are used"), TWO_DASHES
},
470 { {"warn-once", no_argument
, NULL
, OPTION_WARN_ONCE
},
471 '\0', NULL
, N_("Warn only once per undefined symbol"), TWO_DASHES
},
472 { {"warn-section-align", no_argument
, NULL
, OPTION_WARN_SECTION_ALIGN
},
473 '\0', NULL
, N_("Warn if start of section changes due to alignment"),
475 { {"warn-unresolved-symbols", no_argument
, NULL
,
476 OPTION_WARN_UNRESOLVED_SYMBOLS
},
477 '\0', NULL
, N_("Report unresolved symbols as warnings"), TWO_DASHES
},
478 { {"error-unresolved-symbols", no_argument
, NULL
,
479 OPTION_ERROR_UNRESOLVED_SYMBOLS
},
480 '\0', NULL
, N_("Report unresolved symbols as errors"), TWO_DASHES
},
481 { {"fatal-warnings", no_argument
, NULL
, OPTION_WARN_FATAL
},
482 '\0', NULL
, N_("Treat warnings as errors"),
484 { {"whole-archive", no_argument
, NULL
, OPTION_WHOLE_ARCHIVE
},
485 '\0', NULL
, N_("Include all objects from following archives"),
487 { {"add-needed", no_argument
, NULL
, OPTION_ADD_NEEDED
},
488 '\0', NULL
, N_("Set DT_NEEDED tags for DT_NEEDED entries in\n"
489 "\t\t\t\tfollowing dynamic libs"), TWO_DASHES
},
490 { {"no-add-needed", no_argument
, NULL
, OPTION_NO_ADD_NEEDED
},
491 '\0', NULL
, N_("Do not set DT_NEEDED tags for DT_NEEDED entries\n"
492 "\t\t\t\tin following dynamic libs"), TWO_DASHES
},
493 { {"as-needed", no_argument
, NULL
, OPTION_AS_NEEDED
},
494 '\0', NULL
, N_("Only set DT_NEEDED for following dynamic libs if used"),
496 { {"no-as-needed", no_argument
, NULL
, OPTION_NO_AS_NEEDED
},
497 '\0', NULL
, N_("Always set DT_NEEDED for following dynamic libs"),
499 { {"wrap", required_argument
, NULL
, OPTION_WRAP
},
500 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES
},
503 #define OPTION_COUNT ARRAY_SIZE (ld_options)
506 parse_args (unsigned argc
, char **argv
)
511 char *default_dirlist
= NULL
;
513 struct option
*longopts
;
514 struct option
*really_longopts
;
516 enum report_method how_to_report_unresolved_symbols
= RM_GENERATE_ERROR
;
518 shortopts
= xmalloc (OPTION_COUNT
* 3 + 2);
519 longopts
= xmalloc (sizeof (*longopts
) * (OPTION_COUNT
+ 1));
520 really_longopts
= xmalloc (sizeof (*really_longopts
) * (OPTION_COUNT
+ 1));
522 /* Starting the short option string with '-' is for programs that
523 expect options and other ARGV-elements in any order and that care about
524 the ordering of the two. We describe each non-option ARGV-element
525 as if it were the argument of an option with character code 1. */
530 for (i
= 0; i
< OPTION_COUNT
; i
++)
532 if (ld_options
[i
].shortopt
!= '\0')
534 shortopts
[is
] = ld_options
[i
].shortopt
;
536 if (ld_options
[i
].opt
.has_arg
== required_argument
537 || ld_options
[i
].opt
.has_arg
== optional_argument
)
541 if (ld_options
[i
].opt
.has_arg
== optional_argument
)
548 if (ld_options
[i
].opt
.name
!= NULL
)
550 if (ld_options
[i
].control
== EXACTLY_TWO_DASHES
)
552 really_longopts
[irl
] = ld_options
[i
].opt
;
557 longopts
[il
] = ld_options
[i
].opt
;
562 shortopts
[is
] = '\0';
563 longopts
[il
].name
= NULL
;
564 really_longopts
[irl
].name
= NULL
;
566 ldemul_add_options (is
, &shortopts
, il
, &longopts
, irl
, &really_longopts
);
568 /* The -G option is ambiguous on different platforms. Sometimes it
569 specifies the largest data size to put into the small data
570 section. Sometimes it is equivalent to --shared. Unfortunately,
571 the first form takes an argument, while the second does not.
573 We need to permit the --shared form because on some platforms,
574 such as Solaris, gcc -shared will pass -G to the linker.
576 To permit either usage, we look through the argument list. If we
577 find -G not followed by a number, we change it into --shared.
578 This will work for most normal cases. */
579 for (i
= 1; i
< argc
; i
++)
580 if (strcmp (argv
[i
], "-G") == 0
582 || ! ISDIGIT (argv
[i
+ 1][0])))
583 argv
[i
] = (char *) "--shared";
585 /* Because we permit long options to start with a single dash, and
586 we have a --library option, and the -l option is conventionally
587 used with an immediately following argument, we can have bad
588 results if somebody tries to use -l with a library whose name
589 happens to start with "ibrary", as in -li. We avoid problems by
590 simply turning -l into --library. This means that users will
591 have to use two dashes in order to use --library, which is OK
592 since that's how it is documented.
594 FIXME: It's possible that this problem can arise for other short
595 options as well, although the user does always have the recourse
596 of adding a space between the option and the argument. */
597 for (i
= 1; i
< argc
; i
++)
599 if (argv
[i
][0] == '-'
601 && argv
[i
][2] != '\0')
605 n
= xmalloc (strlen (argv
[i
]) + 20);
606 sprintf (n
, "--library=%s", argv
[i
] + 2);
617 /* Using last_optind lets us avoid calling ldemul_parse_args
618 multiple times on a single option, which would lead to
619 confusion in the internal static variables maintained by
620 getopt. This could otherwise happen for an argument like
621 -nx, in which the -n is parsed as a single option, and we
622 loop around to pick up the -x. */
623 if (optind
!= last_optind
)
624 if (ldemul_parse_args (argc
, argv
))
627 /* getopt_long_only is like getopt_long, but '-' as well as '--'
628 can indicate a long option. */
630 last_optind
= optind
;
631 optc
= getopt_long_only (argc
, argv
, shortopts
, longopts
, &longind
);
634 optind
= last_optind
;
635 optc
= getopt_long (argc
, argv
, "-", really_longopts
, &longind
);
638 if (ldemul_handle_option (optc
))
647 einfo (_("%P: unrecognized option '%s'\n"), argv
[last_optind
]);
649 einfo (_("%P%F: use the --help option for usage information\n"));
651 case 1: /* File name. */
652 lang_add_input_file (optarg
, lang_input_file_is_file_enum
, NULL
);
658 /* For HP/UX compatibility. Actually -a shared should mean
659 ``use only shared libraries'' but, then, we don't
660 currently support shared libraries on HP/UX anyhow. */
661 if (strcmp (optarg
, "archive") == 0)
662 config
.dynamic_link
= FALSE
;
663 else if (strcmp (optarg
, "shared") == 0
664 || strcmp (optarg
, "default") == 0)
665 config
.dynamic_link
= TRUE
;
667 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg
);
670 /* FIXME: We just ignore these, but we should handle them. */
671 if (strcmp (optarg
, "definitions") == 0)
673 else if (strcmp (optarg
, "nodefinitions") == 0)
675 else if (strcmp (optarg
, "nosymbolic") == 0)
677 else if (strcmp (optarg
, "pure-text") == 0)
680 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg
);
683 ldfile_add_arch (optarg
);
686 lang_add_target (optarg
);
689 ldfile_open_command_file (optarg
);
690 parser_input
= input_mri_script
;
693 case OPTION_CALL_SHARED
:
694 config
.dynamic_link
= TRUE
;
696 case OPTION_NON_SHARED
:
697 config
.dynamic_link
= FALSE
;
700 command_line
.cref
= TRUE
;
701 link_info
.notice_all
= TRUE
;
704 command_line
.force_common_definition
= TRUE
;
708 lex_redirect (optarg
);
709 parser_input
= input_defsym
;
715 case OPTION_DEMANGLE
:
719 enum demangling_styles style
;
721 style
= cplus_demangle_name_to_style (optarg
);
722 if (style
== unknown_demangling
)
723 einfo (_("%F%P: unknown demangling style `%s'"),
726 cplus_demangle_set_style (style
);
729 case 'I': /* Used on Solaris. */
730 case OPTION_DYNAMIC_LINKER
:
731 command_line
.interpreter
= optarg
;
734 command_line
.endian
= ENDIAN_BIG
;
737 command_line
.endian
= ENDIAN_LITTLE
;
739 case OPTION_EMBEDDED_RELOCS
:
740 command_line
.embedded_relocs
= TRUE
;
742 case OPTION_EXPORT_DYNAMIC
:
743 case 'E': /* HP/UX compatibility. */
744 link_info
.export_dynamic
= TRUE
;
747 lang_add_entry (optarg
, TRUE
);
750 if (command_line
.auxiliary_filters
== NULL
)
752 command_line
.auxiliary_filters
= xmalloc (2 * sizeof (char *));
753 command_line
.auxiliary_filters
[0] = optarg
;
754 command_line
.auxiliary_filters
[1] = NULL
;
762 for (p
= command_line
.auxiliary_filters
; *p
!= NULL
; p
++)
764 command_line
.auxiliary_filters
765 = xrealloc (command_line
.auxiliary_filters
,
766 (c
+ 2) * sizeof (char *));
767 command_line
.auxiliary_filters
[c
] = optarg
;
768 command_line
.auxiliary_filters
[c
+ 1] = NULL
;
772 command_line
.filter_shlib
= optarg
;
774 case OPTION_FORCE_EXE_SUFFIX
:
775 command_line
.force_exe_suffix
= TRUE
;
780 g_switch_value
= strtoul (optarg
, &end
, 0);
782 einfo (_("%P%F: invalid number `%s'\n"), optarg
);
788 case OPTION_GC_SECTIONS
:
789 command_line
.gc_sections
= TRUE
;
796 ldfile_add_library_path (optarg
, TRUE
);
799 lang_add_input_file (optarg
, lang_input_file_is_l_enum
, NULL
);
802 config
.map_filename
= "-";
805 /* Ignore. Was handled in a pre-parse. */
808 config
.map_filename
= optarg
;
811 config
.text_read_only
= FALSE
;
812 config
.magic_demand_paged
= FALSE
;
813 config
.dynamic_link
= FALSE
;
815 case OPTION_NO_OMAGIC
:
816 config
.text_read_only
= TRUE
;
817 config
.magic_demand_paged
= TRUE
;
818 /* NB/ Does not set dynamic_link to TRUE.
819 Use --call-shared or -Bdynamic for this. */
822 config
.magic_demand_paged
= FALSE
;
823 config
.dynamic_link
= FALSE
;
825 case OPTION_NO_DEFINE_COMMON
:
826 command_line
.inhibit_common_definition
= TRUE
;
828 case OPTION_NO_DEMANGLE
:
831 case OPTION_NO_GC_SECTIONS
:
832 command_line
.gc_sections
= FALSE
;
834 case OPTION_NO_KEEP_MEMORY
:
835 link_info
.keep_memory
= FALSE
;
837 case OPTION_NO_UNDEFINED
:
838 link_info
.unresolved_syms_in_objects
839 = how_to_report_unresolved_symbols
;
841 case OPTION_ALLOW_SHLIB_UNDEFINED
:
842 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
844 case OPTION_NO_ALLOW_SHLIB_UNDEFINED
:
845 link_info
.unresolved_syms_in_shared_libs
846 = how_to_report_unresolved_symbols
;
848 case OPTION_UNRESOLVED_SYMBOLS
:
849 if (strcmp (optarg
, "ignore-all") == 0)
851 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
852 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
854 else if (strcmp (optarg
, "report-all") == 0)
856 link_info
.unresolved_syms_in_objects
857 = how_to_report_unresolved_symbols
;
858 link_info
.unresolved_syms_in_shared_libs
859 = how_to_report_unresolved_symbols
;
861 else if (strcmp (optarg
, "ignore-in-object-files") == 0)
863 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
864 link_info
.unresolved_syms_in_shared_libs
865 = how_to_report_unresolved_symbols
;
867 else if (strcmp (optarg
, "ignore-in-shared-libs") == 0)
869 link_info
.unresolved_syms_in_objects
870 = how_to_report_unresolved_symbols
;
871 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
874 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg
);
876 case OPTION_WARN_UNRESOLVED_SYMBOLS
:
877 how_to_report_unresolved_symbols
= RM_GENERATE_WARNING
;
878 if (link_info
.unresolved_syms_in_objects
== RM_GENERATE_ERROR
)
879 link_info
.unresolved_syms_in_objects
= RM_GENERATE_WARNING
;
880 if (link_info
.unresolved_syms_in_shared_libs
== RM_GENERATE_ERROR
)
881 link_info
.unresolved_syms_in_shared_libs
= RM_GENERATE_WARNING
;
884 case OPTION_ERROR_UNRESOLVED_SYMBOLS
:
885 how_to_report_unresolved_symbols
= RM_GENERATE_ERROR
;
886 if (link_info
.unresolved_syms_in_objects
== RM_GENERATE_WARNING
)
887 link_info
.unresolved_syms_in_objects
= RM_GENERATE_ERROR
;
888 if (link_info
.unresolved_syms_in_shared_libs
== RM_GENERATE_WARNING
)
889 link_info
.unresolved_syms_in_shared_libs
= RM_GENERATE_ERROR
;
891 case OPTION_ALLOW_MULTIPLE_DEFINITION
:
892 link_info
.allow_multiple_definition
= TRUE
;
894 case OPTION_NO_UNDEFINED_VERSION
:
895 link_info
.allow_undefined_version
= FALSE
;
897 case OPTION_NO_WARN_MISMATCH
:
898 command_line
.warn_mismatch
= FALSE
;
900 case OPTION_NOINHIBIT_EXEC
:
901 force_make_executable
= TRUE
;
903 case OPTION_NOSTDLIB
:
904 config
.only_cmd_line_lib_dirs
= TRUE
;
906 case OPTION_NO_WHOLE_ARCHIVE
:
907 whole_archive
= FALSE
;
910 /* FIXME "-O<non-digits> <value>" used to set the address of
911 section <non-digits>. Was this for compatibility with
912 something, or can we create a new option to do that
913 (with a syntax similar to -defsym)?
914 getopt can't handle two args to an option without kludges. */
916 /* Enable optimizations of output files. */
917 link_info
.optimize
= strtoul (optarg
, NULL
, 0) ? TRUE
: FALSE
;
920 lang_add_output (optarg
, 0);
923 lang_add_output_format (optarg
, NULL
, NULL
, 0);
926 link_info
.emitrelocations
= TRUE
;
930 if (optind
== last_optind
)
931 /* This can happen if the user put "-rpath,a" on the command
932 line. (Or something similar. The comma is important).
933 Getopt becomes confused and thinks that this is a -r option
934 but it cannot parse the text after the -r so it refuses to
935 increment the optind counter. Detect this case and issue
936 an error message here. We cannot just make this a warning,
937 increment optind, and continue because getopt is too confused
938 and will seg-fault the next time around. */
939 einfo(_("%P%F: bad -rpath option\n"));
941 link_info
.relocatable
= TRUE
;
942 config
.build_constructors
= FALSE
;
943 config
.magic_demand_paged
= FALSE
;
944 config
.text_read_only
= FALSE
;
945 config
.dynamic_link
= FALSE
;
948 /* The GNU linker traditionally uses -R to mean to include
949 only the symbols from a file. The Solaris linker uses -R
950 to set the path used by the runtime linker to find
951 libraries. This is the GNU linker -rpath argument. We
952 try to support both simultaneously by checking the file
953 named. If it is a directory, rather than a regular file,
954 we assume -rpath was meant. */
958 if (stat (optarg
, &s
) >= 0
959 && ! S_ISDIR (s
.st_mode
))
961 lang_add_input_file (optarg
,
962 lang_input_file_is_symbols_only_enum
,
969 if (command_line
.rpath
== NULL
)
970 command_line
.rpath
= xstrdup (optarg
);
973 size_t rpath_len
= strlen (command_line
.rpath
);
974 size_t optarg_len
= strlen (optarg
);
976 char *cp
= command_line
.rpath
;
978 /* First see whether OPTARG is already in the path. */
983 while (optarg
[idx
] != '\0' && optarg
[idx
] == cp
[idx
])
985 if (optarg
[idx
] == '\0'
986 && (cp
[idx
] == '\0' || cp
[idx
] == ':'))
991 cp
= strchr (cp
, ':');
999 buf
= xmalloc (rpath_len
+ optarg_len
+ 2);
1000 sprintf (buf
, "%s:%s", command_line
.rpath
, optarg
);
1001 free (command_line
.rpath
);
1002 command_line
.rpath
= buf
;
1006 case OPTION_RPATH_LINK
:
1007 if (command_line
.rpath_link
== NULL
)
1008 command_line
.rpath_link
= xstrdup (optarg
);
1013 buf
= xmalloc (strlen (command_line
.rpath_link
)
1016 sprintf (buf
, "%s:%s", command_line
.rpath_link
, optarg
);
1017 free (command_line
.rpath_link
);
1018 command_line
.rpath_link
= buf
;
1022 command_line
.relax
= TRUE
;
1024 case OPTION_RETAIN_SYMBOLS_FILE
:
1025 add_keepsyms_file (optarg
);
1028 link_info
.strip
= strip_debugger
;
1031 link_info
.strip
= strip_all
;
1033 case OPTION_STRIP_DISCARDED
:
1034 link_info
.strip_discarded
= TRUE
;
1036 case OPTION_NO_STRIP_DISCARDED
:
1037 link_info
.strip_discarded
= FALSE
;
1040 if (config
.has_shared
)
1042 link_info
.shared
= TRUE
;
1043 /* When creating a shared library, the default
1044 behaviour is to ignore any unresolved references. */
1045 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1046 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
1047 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1048 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
1051 einfo (_("%P%F: -shared not supported\n"));
1054 if (config
.has_shared
)
1056 link_info
.shared
= TRUE
;
1057 link_info
.pie
= TRUE
;
1060 einfo (_("%P%F: -pie not supported\n"));
1062 case 'h': /* Used on Solaris. */
1064 command_line
.soname
= optarg
;
1066 case OPTION_SORT_COMMON
:
1067 config
.sort_common
= TRUE
;
1070 config
.stats
= TRUE
;
1072 case OPTION_SYMBOLIC
:
1073 link_info
.symbolic
= TRUE
;
1079 ldfile_open_command_file (optarg
);
1080 parser_input
= input_script
;
1083 case OPTION_SECTION_START
:
1089 /* Check for <something>=<somthing>... */
1090 optarg2
= strchr (optarg
, '=');
1091 if (optarg2
== NULL
)
1092 einfo (_("%P%F: invalid argument to option"
1093 " \"--section-start\"\n"));
1097 /* So far so good. Are all the args present? */
1098 if ((*optarg
== '\0') || (*optarg2
== '\0'))
1099 einfo (_("%P%F: missing argument(s) to option"
1100 " \"--section-start\"\n"));
1102 /* We must copy the section name as set_section_start
1103 doesn't do it for us. */
1104 len
= optarg2
- optarg
;
1105 sec_name
= xmalloc (len
);
1106 memcpy (sec_name
, optarg
, len
- 1);
1107 sec_name
[len
- 1] = 0;
1109 /* Then set it... */
1110 set_section_start (sec_name
, optarg2
);
1113 case OPTION_TARGET_HELP
:
1114 /* Mention any target specific options. */
1115 ldemul_list_emulation_options (stdout
);
1118 set_section_start (".bss", optarg
);
1121 set_section_start (".data", optarg
);
1124 set_section_start (".text", optarg
);
1126 case OPTION_TRADITIONAL_FORMAT
:
1127 link_info
.traditional_format
= TRUE
;
1129 case OPTION_TASK_LINK
:
1130 link_info
.task_link
= TRUE
;
1131 /* Fall through - do an implied -r option. */
1133 link_info
.relocatable
= TRUE
;
1134 config
.build_constructors
= TRUE
;
1135 config
.magic_demand_paged
= FALSE
;
1136 config
.text_read_only
= FALSE
;
1137 config
.dynamic_link
= FALSE
;
1140 ldlang_add_undef (optarg
);
1144 lang_add_unique (optarg
);
1146 config
.unique_orphan_sections
= TRUE
;
1148 case OPTION_VERBOSE
:
1150 version_printed
= TRUE
;
1151 trace_file_tries
= TRUE
;
1152 overflow_cutoff_limit
= -2;
1156 version_printed
= TRUE
;
1160 version_printed
= TRUE
;
1162 case OPTION_VERSION
:
1166 case OPTION_VERSION_SCRIPT
:
1167 /* This option indicates a small script that only specifies
1168 version information. Read it, but don't assume that
1169 we've seen a linker script. */
1171 FILE *hold_script_handle
;
1173 hold_script_handle
= saved_script_handle
;
1174 ldfile_open_command_file (optarg
);
1175 saved_script_handle
= hold_script_handle
;
1176 parser_input
= input_version_script
;
1180 case OPTION_VERSION_EXPORTS_SECTION
:
1181 /* This option records a version symbol to be applied to the
1182 symbols listed for export to be found in the object files
1183 .exports sections. */
1184 command_line
.version_exports_section
= optarg
;
1186 case OPTION_WARN_COMMON
:
1187 config
.warn_common
= TRUE
;
1189 case OPTION_WARN_CONSTRUCTORS
:
1190 config
.warn_constructors
= TRUE
;
1192 case OPTION_WARN_FATAL
:
1193 config
.fatal_warnings
= TRUE
;
1195 case OPTION_WARN_MULTIPLE_GP
:
1196 config
.warn_multiple_gp
= TRUE
;
1198 case OPTION_WARN_ONCE
:
1199 config
.warn_once
= TRUE
;
1201 case OPTION_WARN_SECTION_ALIGN
:
1202 config
.warn_section_align
= TRUE
;
1204 case OPTION_WHOLE_ARCHIVE
:
1205 whole_archive
= TRUE
;
1207 case OPTION_ADD_NEEDED
:
1210 case OPTION_NO_ADD_NEEDED
:
1213 case OPTION_AS_NEEDED
:
1216 case OPTION_NO_AS_NEEDED
:
1222 case OPTION_DISCARD_NONE
:
1223 link_info
.discard
= discard_none
;
1226 link_info
.discard
= discard_l
;
1229 link_info
.discard
= discard_all
;
1232 if (strncmp (optarg
, "P,", 2) == 0)
1234 if (default_dirlist
!= NULL
)
1235 free (default_dirlist
);
1236 default_dirlist
= xstrdup (optarg
);
1241 case OPTION_SPARE_DYNAMIC_TAGS
:
1242 link_info
.spare_dynamic_tags
= strtoul (optarg
, NULL
, 0);
1244 case OPTION_SPLIT_BY_RELOC
:
1246 config
.split_by_reloc
= strtoul (optarg
, NULL
, 0);
1248 config
.split_by_reloc
= 32768;
1250 case OPTION_SPLIT_BY_FILE
:
1252 config
.split_by_file
= bfd_scan_vma (optarg
, NULL
, 0);
1254 config
.split_by_file
= 1;
1256 case OPTION_CHECK_SECTIONS
:
1257 command_line
.check_section_addresses
= TRUE
;
1259 case OPTION_NO_CHECK_SECTIONS
:
1260 command_line
.check_section_addresses
= FALSE
;
1262 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
:
1263 command_line
.accept_unknown_input_arch
= TRUE
;
1265 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
:
1266 command_line
.accept_unknown_input_arch
= FALSE
;
1270 einfo (_("%P%F: may not nest groups (--help for usage)\n"));
1272 lang_enter_group ();
1277 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1279 lang_leave_group ();
1284 link_info
.init_function
= optarg
;
1288 link_info
.fini_function
= optarg
;
1291 case OPTION_REDUCE_MEMORY_OVERHEADS
:
1292 command_line
.reduce_memory_overheads
= TRUE
;
1293 if (config
.hash_table_size
== 0)
1294 config
.hash_table_size
= 1021;
1297 case OPTION_HASH_SIZE
:
1299 bfd_size_type new_size
;
1301 new_size
= strtoul (optarg
, NULL
, 0);
1303 config
.hash_table_size
= new_size
;
1305 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1312 lang_leave_group ();
1314 if (default_dirlist
!= NULL
)
1316 set_default_dirlist (default_dirlist
);
1317 free (default_dirlist
);
1320 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1321 /* FIXME: Should we allow emulations a chance to set this ? */
1322 link_info
.unresolved_syms_in_objects
= how_to_report_unresolved_symbols
;
1324 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1325 /* FIXME: Should we allow emulations a chance to set this ? */
1326 link_info
.unresolved_syms_in_shared_libs
= how_to_report_unresolved_symbols
;
1329 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1330 library search path. */
1333 set_default_dirlist (char *dirlist_ptr
)
1339 p
= strchr (dirlist_ptr
, PATH_SEPARATOR
);
1342 if (*dirlist_ptr
!= '\0')
1343 ldfile_add_library_path (dirlist_ptr
, TRUE
);
1346 dirlist_ptr
= p
+ 1;
1351 set_section_start (char *sect
, char *valstr
)
1354 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
1356 einfo (_("%P%F: invalid hex number `%s'\n"), valstr
);
1357 lang_section_start (sect
, exp_intop (val
));
1360 /* Print help messages for the options. */
1366 const char **targets
, **pp
;
1368 printf (_("Usage: %s [options] file...\n"), program_name
);
1370 printf (_("Options:\n"));
1371 for (i
= 0; i
< OPTION_COUNT
; i
++)
1373 if (ld_options
[i
].doc
!= NULL
)
1387 if (ld_options
[j
].shortopt
!= '\0'
1388 && ld_options
[j
].control
!= NO_HELP
)
1390 printf ("%s-%c", comma
? ", " : "", ld_options
[j
].shortopt
);
1391 len
+= (comma
? 2 : 0) + 2;
1392 if (ld_options
[j
].arg
!= NULL
)
1394 if (ld_options
[j
].opt
.has_arg
!= optional_argument
)
1399 printf ("%s", _(ld_options
[j
].arg
));
1400 len
+= strlen (_(ld_options
[j
].arg
));
1406 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
1411 if (ld_options
[j
].opt
.name
!= NULL
1412 && ld_options
[j
].control
!= NO_HELP
)
1415 (ld_options
[j
].control
== TWO_DASHES
1416 || ld_options
[j
].control
== EXACTLY_TWO_DASHES
);
1420 two_dashes
? "-" : "",
1421 ld_options
[j
].opt
.name
);
1422 len
+= ((comma
? 2 : 0)
1424 + (two_dashes
? 1 : 0)
1425 + strlen (ld_options
[j
].opt
.name
));
1426 if (ld_options
[j
].arg
!= NULL
)
1428 printf (" %s", _(ld_options
[j
].arg
));
1429 len
+= 1 + strlen (_(ld_options
[j
].arg
));
1435 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
1443 for (; len
< 30; len
++)
1446 printf ("%s\n", _(ld_options
[i
].doc
));
1450 /* Note: Various tools (such as libtool) depend upon the
1451 format of the listings below - do not change them. */
1452 /* xgettext:c-format */
1453 printf (_("%s: supported targets:"), program_name
);
1454 targets
= bfd_target_list ();
1455 for (pp
= targets
; *pp
!= NULL
; pp
++)
1456 printf (" %s", *pp
);
1460 /* xgettext:c-format */
1461 printf (_("%s: supported emulations: "), program_name
);
1462 ldemul_list_emulations (stdout
);
1465 /* xgettext:c-format */
1466 printf (_("%s: emulation specific options:\n"), program_name
);
1467 ldemul_list_emulation_options (stdout
);
1470 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO
);