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
);