1 /* Parse options for the GNU linker.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012
4 Free Software Foundation, Inc.
6 This file is part of the GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
26 #include "libiberty.h"
29 #include "safe-ctype.h"
45 #endif /* ENABLE_PLUGINS */
47 #ifndef PATH_SEPARATOR
48 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
49 #define PATH_SEPARATOR ';'
51 #define PATH_SEPARATOR ':'
55 /* Somewhere above, sys/stat.h got included . . . . */
56 #if !defined(S_ISDIR) && defined(S_IFDIR)
57 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
60 static void set_default_dirlist (char *);
61 static void set_section_start (char *, char *);
62 static void set_segment_start (const char *, char *);
63 static void help (void);
65 /* The long options. This structure is used for both the option
66 parsing and the help text. */
69 /* Use one dash before long option name. */
71 /* Use two dashes before long option name. */
73 /* Only accept two dashes before the long option name.
74 This is an overloading of the use of this enum, since originally it
75 was only intended to tell the --help display function how to display
76 the long option name. This feature was added in order to resolve
77 the confusion about the -omagic command line switch. Is it setting
78 the output file name to "magic" or is it setting the NMAGIC flag on
79 the output ? It has been decided that it is setting the output file
80 name, and that if you want to set the NMAGIC flag you should use -N
83 /* Don't mention this option in --help output. */
89 /* The long option information. */
91 /* The short option with the same meaning ('\0' if none). */
93 /* The name of the argument (NULL if none). */
95 /* The documentation string. If this is NULL, this is a synonym for
96 the previous option. */
98 enum control_enum control;
101 static const struct ld_option ld_options[] =
103 { {NULL, required_argument, NULL, '\0'},
104 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
106 { {"architecture", required_argument, NULL, 'A'},
107 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
108 { {"format", required_argument, NULL, 'b'},
109 'b', N_("TARGET"), N_("Specify target for following input files"),
111 { {"mri-script", required_argument, NULL, 'c'},
112 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
113 { {"dc", no_argument, NULL, 'd'},
114 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
115 { {"dp", no_argument, NULL, 'd'},
116 '\0', NULL, NULL, ONE_DASH },
117 { {"entry", required_argument, NULL, 'e'},
118 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
119 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
120 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
121 { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
122 '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
123 { {"EB", no_argument, NULL, OPTION_EB},
124 '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
125 { {"EL", no_argument, NULL, OPTION_EL},
126 '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
127 { {"auxiliary", required_argument, NULL, 'f'},
128 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
130 { {"filter", required_argument, NULL, 'F'},
131 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
133 { {NULL, no_argument, NULL, '\0'},
134 'g', NULL, N_("Ignored"), ONE_DASH },
135 { {"gpsize", required_argument, NULL, 'G'},
136 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
138 { {"soname", required_argument, NULL, OPTION_SONAME},
139 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
140 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
141 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
143 { {"library", required_argument, NULL, 'l'},
144 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
145 { {"library-path", required_argument, NULL, 'L'},
146 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
148 { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
149 '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
150 { {NULL, required_argument, NULL, '\0'},
151 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
152 { {"print-map", no_argument, NULL, 'M'},
153 'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
154 { {"nmagic", no_argument, NULL, 'n'},
155 'n', NULL, N_("Do not page align data"), TWO_DASHES },
156 { {"omagic", no_argument, NULL, 'N'},
157 'N', NULL, N_("Do not page align data, do not make text readonly"),
158 EXACTLY_TWO_DASHES },
159 { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
160 '\0', NULL, N_("Page align data, make text readonly"),
161 EXACTLY_TWO_DASHES },
162 { {"output", required_argument, NULL, 'o'},
163 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
164 { {NULL, required_argument, NULL, '\0'},
165 'O', NULL, N_("Optimize output file"), ONE_DASH },
166 #ifdef ENABLE_PLUGINS
167 { {"plugin", required_argument, NULL, OPTION_PLUGIN},
168 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH },
169 { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT},
170 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH },
171 { {"flto", optional_argument, NULL, OPTION_IGNORE},
172 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
174 { {"flto-partition=", required_argument, NULL, OPTION_IGNORE},
175 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
177 #endif /* ENABLE_PLUGINS */
178 { {"fuse-ld=", required_argument, NULL, OPTION_IGNORE},
179 '\0', NULL, N_("Ignored for GCC linker option compatibility"),
181 { {"Qy", no_argument, NULL, OPTION_IGNORE},
182 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
183 { {"emit-relocs", no_argument, NULL, 'q'},
184 'q', NULL, "Generate relocations in final output", TWO_DASHES },
185 { {"relocatable", no_argument, NULL, 'r'},
186 'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
187 { {NULL, no_argument, NULL, '\0'},
188 'i', NULL, NULL, ONE_DASH },
189 { {"just-symbols", required_argument, NULL, 'R'},
190 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
192 { {"strip-all", no_argument, NULL, 's'},
193 's', NULL, N_("Strip all symbols"), TWO_DASHES },
194 { {"strip-debug", no_argument, NULL, 'S'},
195 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
196 { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
197 '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
198 { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
199 '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
200 { {"trace", no_argument, NULL, 't'},
201 't', NULL, N_("Trace file opens"), TWO_DASHES },
202 { {"script", required_argument, NULL, 'T'},
203 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
204 { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
205 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
206 { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
207 '\0', NULL, NULL, ONE_DASH },
208 { {"undefined", required_argument, NULL, 'u'},
209 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
211 { {"unique", optional_argument, NULL, OPTION_UNIQUE},
212 '\0', N_("[=SECTION]"),
213 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
214 { {"Ur", no_argument, NULL, OPTION_UR},
215 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
216 { {"version", no_argument, NULL, OPTION_VERSION},
217 'v', NULL, N_("Print version information"), TWO_DASHES },
218 { {NULL, no_argument, NULL, '\0'},
219 'V', NULL, N_("Print version and emulation information"), ONE_DASH },
220 { {"discard-all", no_argument, NULL, 'x'},
221 'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
222 { {"discard-locals", no_argument, NULL, 'X'},
223 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
224 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
225 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
226 { {"trace-symbol", required_argument, NULL, 'y'},
227 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
228 { {NULL, required_argument, NULL, '\0'},
229 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
231 { {"start-group", no_argument, NULL, '('},
232 '(', NULL, N_("Start a group"), TWO_DASHES },
233 { {"end-group", no_argument, NULL, ')'},
234 ')', NULL, N_("End a group"), TWO_DASHES },
235 { {"accept-unknown-input-arch", no_argument, NULL,
236 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
238 N_("Accept input files whose architecture cannot be determined"),
240 { {"no-accept-unknown-input-arch", no_argument, NULL,
241 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
242 '\0', NULL, N_("Reject input files whose architecture is unknown"),
245 /* The next two options are deprecated because of their similarity to
246 --as-needed and --no-as-needed. They have been replaced by
247 --copy-dt-needed-entries and --no-copy-dt-needed-entries. */
248 { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
249 '\0', NULL, NULL, NO_HELP },
250 { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
251 '\0', NULL, NULL, NO_HELP },
253 { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR},
254 '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
256 { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR},
257 '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
258 " the command line"),
260 { {"assert", required_argument, NULL, OPTION_ASSERT},
261 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
262 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
263 '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
264 { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
265 '\0', NULL, NULL, ONE_DASH },
266 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
267 '\0', NULL, NULL, ONE_DASH },
268 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
269 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
270 { {"dn", no_argument, NULL, OPTION_NON_SHARED},
271 '\0', NULL, NULL, ONE_DASH },
272 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
273 '\0', NULL, NULL, ONE_DASH },
274 { {"static", no_argument, NULL, OPTION_NON_SHARED},
275 '\0', NULL, NULL, ONE_DASH },
276 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
277 '\0', NULL, N_("Bind global references locally"), ONE_DASH },
278 { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
279 '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
280 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
281 '\0', NULL, N_("Check section addresses for overlaps (default)"),
283 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
284 '\0', NULL, N_("Do not check section addresses for overlaps"),
286 { {"copy-dt-needed-entries", no_argument, NULL,
287 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
288 '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
290 { {"no-copy-dt-needed-entries", no_argument, NULL,
291 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
292 '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
295 { {"cref", no_argument, NULL, OPTION_CREF},
296 '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
297 { {"defsym", required_argument, NULL, OPTION_DEFSYM},
298 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
299 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
300 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
302 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
303 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
304 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
305 '\0', NULL, N_("Treat warnings as errors"),
307 { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
308 '\0', NULL, N_("Do not treat warnings as errors (default)"),
310 { {"fini", required_argument, NULL, OPTION_FINI},
311 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
312 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
313 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
314 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
315 '\0', NULL, N_("Remove unused sections (on some targets)"),
317 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
318 '\0', NULL, N_("Don't remove unused sections (default)"),
320 { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
321 '\0', NULL, N_("List removed unused sections on stderr"),
323 { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
324 '\0', NULL, N_("Do not list removed unused sections"),
326 { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
327 '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
329 { {"help", no_argument, NULL, OPTION_HELP},
330 '\0', NULL, N_("Print option help"), TWO_DASHES },
331 { {"init", required_argument, NULL, OPTION_INIT},
332 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
333 { {"Map", required_argument, NULL, OPTION_MAP},
334 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
335 { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
336 '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
337 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
338 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
339 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
340 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
341 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
342 '\0', NULL, N_("Do not allow unresolved references in object files"),
344 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
345 '\0', NULL, N_("Allow unresolved references in shared libraries"),
347 { {"no-allow-shlib-undefined", no_argument, NULL,
348 OPTION_NO_ALLOW_SHLIB_UNDEFINED},
349 '\0', NULL, N_("Do not allow unresolved references in shared libs"),
351 { {"allow-multiple-definition", no_argument, NULL,
352 OPTION_ALLOW_MULTIPLE_DEFINITION},
353 '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
354 { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
355 '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
356 { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
357 '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
358 { {"default-imported-symver", no_argument, NULL,
359 OPTION_DEFAULT_IMPORTED_SYMVER},
360 '\0', NULL, N_("Create default symbol version for imported symbols"),
362 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
363 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
364 { {"no-warn-search-mismatch", no_argument, NULL,
365 OPTION_NO_WARN_SEARCH_MISMATCH},
366 '\0', NULL, N_("Don't warn on finding an incompatible library"),
368 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
369 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
370 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
371 '\0', NULL, N_("Create an output file even if errors occur"),
373 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
374 '\0', NULL, NULL, NO_HELP },
375 { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
376 '\0', NULL, N_("Only use library directories specified on\n"
377 " the command line"),
379 { {"oformat", required_argument, NULL, OPTION_OFORMAT},
380 '\0', N_("TARGET"), N_("Specify target of output file"),
381 EXACTLY_TWO_DASHES },
382 { {"print-output-format", no_argument, NULL, OPTION_PRINT_OUTPUT_FORMAT},
383 '\0', NULL, N_("Print default output format"), TWO_DASHES },
384 { {"qmagic", no_argument, NULL, OPTION_IGNORE},
385 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
386 { {"reduce-memory-overheads", no_argument, NULL,
387 OPTION_REDUCE_MEMORY_OVERHEADS},
388 '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
390 { {"relax", no_argument, NULL, OPTION_RELAX},
391 '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES },
392 { {"no-relax", no_argument, NULL, OPTION_NO_RELAX},
393 '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES },
394 { {"retain-symbols-file", required_argument, NULL,
395 OPTION_RETAIN_SYMBOLS_FILE},
396 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
397 { {"rpath", required_argument, NULL, OPTION_RPATH},
398 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
399 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
400 '\0', N_("PATH"), N_("Set link time shared library search path"),
402 { {"shared", no_argument, NULL, OPTION_SHARED},
403 '\0', NULL, N_("Create a shared library"), ONE_DASH },
404 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
405 '\0', NULL, NULL, ONE_DASH },
406 { {"pie", no_argument, NULL, OPTION_PIE},
407 '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
408 { {"pic-executable", no_argument, NULL, OPTION_PIE},
409 '\0', NULL, NULL, TWO_DASHES },
410 { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
411 '\0', N_("[=ascending|descending]"),
412 N_("Sort common symbols by alignment [in specified order]"),
414 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
415 '\0', NULL, NULL, NO_HELP },
416 { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
417 '\0', N_("name|alignment"),
418 N_("Sort sections by name or maximum alignment"), TWO_DASHES },
419 { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
420 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
422 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
423 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
425 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
426 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
428 { {"stats", no_argument, NULL, OPTION_STATS},
429 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
430 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
431 '\0', NULL, N_("Display target specific options"), TWO_DASHES },
432 { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
433 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
434 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
435 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
436 { {"section-start", required_argument, NULL, OPTION_SECTION_START},
437 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
439 { {"Tbss", required_argument, NULL, OPTION_TBSS},
440 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
441 { {"Tdata", required_argument, NULL, OPTION_TDATA},
442 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
443 { {"Ttext", required_argument, NULL, OPTION_TTEXT},
444 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
445 { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT},
446 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
447 { {"Trodata-segment", required_argument, NULL, OPTION_TRODATA_SEGMENT},
448 '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH },
449 { {"Tldata-segment", required_argument, NULL, OPTION_TLDATA_SEGMENT},
450 '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH },
451 { {"unresolved-symbols=<method>", required_argument, NULL,
452 OPTION_UNRESOLVED_SYMBOLS},
453 '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n"
454 " ignore-all, report-all, ignore-in-object-files,\n"
455 " ignore-in-shared-libs"),
457 { {"verbose", optional_argument, NULL, OPTION_VERBOSE},
458 '\0', N_("[=NUMBER]"),
459 N_("Output lots of information during link"), TWO_DASHES },
460 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
461 '\0', NULL, NULL, NO_HELP },
462 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
463 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
464 { {"version-exports-section", required_argument, NULL,
465 OPTION_VERSION_EXPORTS_SECTION },
466 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
467 " SYMBOL as the version."),
469 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
470 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
471 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
472 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
473 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
474 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
475 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
476 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
477 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
478 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
479 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
480 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
482 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
483 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
484 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
485 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
486 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
487 '\0', NULL, N_("Warn if start of section changes due to alignment"),
489 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
490 '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
492 { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
493 '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
495 { {"warn-unresolved-symbols", no_argument, NULL,
496 OPTION_WARN_UNRESOLVED_SYMBOLS},
497 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
498 { {"error-unresolved-symbols", no_argument, NULL,
499 OPTION_ERROR_UNRESOLVED_SYMBOLS},
500 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
501 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
502 '\0', NULL, N_("Include all objects from following archives"),
504 { {"wrap", required_argument, NULL, OPTION_WRAP},
505 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
506 { {"ignore-unresolved-symbol", required_argument, NULL,
507 OPTION_IGNORE_UNRESOLVED_SYMBOL},
509 N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES },
512 #define OPTION_COUNT ARRAY_SIZE (ld_options)
515 parse_args (unsigned argc, char **argv)
520 char *default_dirlist = NULL;
522 struct option *longopts;
523 struct option *really_longopts;
525 enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
527 shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2);
528 longopts = (struct option *)
529 xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
530 really_longopts = (struct option *)
531 malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
533 /* Starting the short option string with '-' is for programs that
534 expect options and other ARGV-elements in any order and that care about
535 the ordering of the two. We describe each non-option ARGV-element
536 as if it were the argument of an option with character code 1. */
541 for (i = 0; i < OPTION_COUNT; i++)
543 if (ld_options[i].shortopt != '\0')
545 shortopts[is] = ld_options[i].shortopt;
547 if (ld_options[i].opt.has_arg == required_argument
548 || ld_options[i].opt.has_arg == optional_argument)
552 if (ld_options[i].opt.has_arg == optional_argument)
559 if (ld_options[i].opt.name != NULL)
561 if (ld_options[i].control == EXACTLY_TWO_DASHES)
563 really_longopts[irl] = ld_options[i].opt;
568 longopts[il] = ld_options[i].opt;
573 shortopts[is] = '\0';
574 longopts[il].name = NULL;
575 really_longopts[irl].name = NULL;
577 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
579 /* The -G option is ambiguous on different platforms. Sometimes it
580 specifies the largest data size to put into the small data
581 section. Sometimes it is equivalent to --shared. Unfortunately,
582 the first form takes an argument, while the second does not.
584 We need to permit the --shared form because on some platforms,
585 such as Solaris, gcc -shared will pass -G to the linker.
587 To permit either usage, we look through the argument list. If we
588 find -G not followed by a number, we change it into --shared.
589 This will work for most normal cases. */
590 for (i = 1; i < argc; i++)
591 if (strcmp (argv[i], "-G") == 0
593 || ! ISDIGIT (argv[i + 1][0])))
594 argv[i] = (char *) "--shared";
596 /* Because we permit long options to start with a single dash, and
597 we have a --library option, and the -l option is conventionally
598 used with an immediately following argument, we can have bad
599 results if somebody tries to use -l with a library whose name
600 happens to start with "ibrary", as in -li. We avoid problems by
601 simply turning -l into --library. This means that users will
602 have to use two dashes in order to use --library, which is OK
603 since that's how it is documented.
605 FIXME: It's possible that this problem can arise for other short
606 options as well, although the user does always have the recourse
607 of adding a space between the option and the argument. */
608 for (i = 1; i < argc; i++)
610 if (argv[i][0] == '-'
612 && argv[i][2] != '\0')
616 n = (char *) xmalloc (strlen (argv[i]) + 20);
617 sprintf (n, "--library=%s", argv[i] + 2);
627 static unsigned int defsym_count;
629 /* Using last_optind lets us avoid calling ldemul_parse_args
630 multiple times on a single option, which would lead to
631 confusion in the internal static variables maintained by
632 getopt. This could otherwise happen for an argument like
633 -nx, in which the -n is parsed as a single option, and we
634 loop around to pick up the -x. */
635 if (optind != last_optind)
636 if (ldemul_parse_args (argc, argv))
639 /* getopt_long_only is like getopt_long, but '-' as well as '--'
640 can indicate a long option. */
642 last_optind = optind;
643 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
646 optind = last_optind;
647 optc = getopt_long (argc, argv, "-", really_longopts, &longind);
650 if (ldemul_handle_option (optc))
659 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
663 einfo (_("%P%F: use the --help option for usage information\n"));
665 case 1: /* File name. */
666 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
672 /* For HP/UX compatibility. Actually -a shared should mean
673 ``use only shared libraries'' but, then, we don't
674 currently support shared libraries on HP/UX anyhow. */
675 if (strcmp (optarg, "archive") == 0)
676 input_flags.dynamic = FALSE;
677 else if (strcmp (optarg, "shared") == 0
678 || strcmp (optarg, "default") == 0)
679 input_flags.dynamic = TRUE;
681 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
684 /* FIXME: We just ignore these, but we should handle them. */
685 if (strcmp (optarg, "definitions") == 0)
687 else if (strcmp (optarg, "nodefinitions") == 0)
689 else if (strcmp (optarg, "nosymbolic") == 0)
691 else if (strcmp (optarg, "pure-text") == 0)
694 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
697 ldfile_add_arch (optarg);
700 lang_add_target (optarg);
703 ldfile_open_command_file (optarg);
704 parser_input = input_mri_script;
707 case OPTION_CALL_SHARED:
708 input_flags.dynamic = TRUE;
710 case OPTION_NON_SHARED:
711 input_flags.dynamic = FALSE;
714 command_line.cref = TRUE;
715 link_info.notice_all = TRUE;
718 command_line.force_common_definition = TRUE;
722 lex_redirect (optarg, "--defsym", ++defsym_count);
723 parser_input = input_defsym;
727 case OPTION_DEMANGLE:
731 enum demangling_styles style;
733 style = cplus_demangle_name_to_style (optarg);
734 if (style == unknown_demangling)
735 einfo (_("%F%P: unknown demangling style `%s'\n"),
738 cplus_demangle_set_style (style);
741 case 'I': /* Used on Solaris. */
742 case OPTION_DYNAMIC_LINKER:
743 command_line.interpreter = optarg;
746 /* Already handled in ldmain.c. */
749 command_line.endian = ENDIAN_BIG;
752 command_line.endian = ENDIAN_LITTLE;
754 case OPTION_EMBEDDED_RELOCS:
755 command_line.embedded_relocs = TRUE;
757 case OPTION_EXPORT_DYNAMIC:
758 case 'E': /* HP/UX compatibility. */
759 link_info.export_dynamic = TRUE;
761 case OPTION_NO_EXPORT_DYNAMIC:
762 link_info.export_dynamic = FALSE;
765 lang_add_entry (optarg, TRUE);
768 if (command_line.auxiliary_filters == NULL)
770 command_line.auxiliary_filters = (char **)
771 xmalloc (2 * sizeof (char *));
772 command_line.auxiliary_filters[0] = optarg;
773 command_line.auxiliary_filters[1] = NULL;
781 for (p = command_line.auxiliary_filters; *p != NULL; p++)
783 command_line.auxiliary_filters = (char **)
784 xrealloc (command_line.auxiliary_filters,
785 (c + 2) * sizeof (char *));
786 command_line.auxiliary_filters[c] = optarg;
787 command_line.auxiliary_filters[c + 1] = NULL;
791 command_line.filter_shlib = optarg;
793 case OPTION_FORCE_EXE_SUFFIX:
794 command_line.force_exe_suffix = TRUE;
799 g_switch_value = strtoul (optarg, &end, 0);
801 einfo (_("%P%F: invalid number `%s'\n"), optarg);
807 case OPTION_GC_SECTIONS:
808 link_info.gc_sections = TRUE;
810 case OPTION_PRINT_GC_SECTIONS:
811 link_info.print_gc_sections = TRUE;
818 ldfile_add_library_path (optarg, TRUE);
821 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
824 config.map_filename = "-";
827 /* Ignore. Was handled in a pre-parse. */
830 config.map_filename = optarg;
833 config.text_read_only = FALSE;
834 config.magic_demand_paged = FALSE;
835 input_flags.dynamic = FALSE;
837 case OPTION_NO_OMAGIC:
838 config.text_read_only = TRUE;
839 config.magic_demand_paged = TRUE;
840 /* NB/ Does not set input_flags.dynamic to TRUE.
841 Use --call-shared or -Bdynamic for this. */
844 config.magic_demand_paged = FALSE;
845 input_flags.dynamic = FALSE;
847 case OPTION_NO_DEFINE_COMMON:
848 command_line.inhibit_common_definition = TRUE;
850 case OPTION_NO_DEMANGLE:
853 case OPTION_NO_GC_SECTIONS:
854 link_info.gc_sections = FALSE;
856 case OPTION_NO_PRINT_GC_SECTIONS:
857 link_info.print_gc_sections = FALSE;
859 case OPTION_NO_KEEP_MEMORY:
860 link_info.keep_memory = FALSE;
862 case OPTION_NO_UNDEFINED:
863 link_info.unresolved_syms_in_objects
864 = how_to_report_unresolved_symbols;
866 case OPTION_ALLOW_SHLIB_UNDEFINED:
867 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
869 case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
870 link_info.unresolved_syms_in_shared_libs
871 = how_to_report_unresolved_symbols;
873 case OPTION_UNRESOLVED_SYMBOLS:
874 if (strcmp (optarg, "ignore-all") == 0)
876 link_info.unresolved_syms_in_objects = RM_IGNORE;
877 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
879 else if (strcmp (optarg, "report-all") == 0)
881 link_info.unresolved_syms_in_objects
882 = how_to_report_unresolved_symbols;
883 link_info.unresolved_syms_in_shared_libs
884 = how_to_report_unresolved_symbols;
886 else if (strcmp (optarg, "ignore-in-object-files") == 0)
888 link_info.unresolved_syms_in_objects = RM_IGNORE;
889 link_info.unresolved_syms_in_shared_libs
890 = how_to_report_unresolved_symbols;
892 else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
894 link_info.unresolved_syms_in_objects
895 = how_to_report_unresolved_symbols;
896 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
899 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
901 case OPTION_WARN_UNRESOLVED_SYMBOLS:
902 how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
903 if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
904 link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
905 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
906 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
909 case OPTION_ERROR_UNRESOLVED_SYMBOLS:
910 how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
911 if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
912 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
913 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
914 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
916 case OPTION_ALLOW_MULTIPLE_DEFINITION:
917 link_info.allow_multiple_definition = TRUE;
919 case OPTION_NO_UNDEFINED_VERSION:
920 link_info.allow_undefined_version = FALSE;
922 case OPTION_DEFAULT_SYMVER:
923 link_info.create_default_symver = TRUE;
925 case OPTION_DEFAULT_IMPORTED_SYMVER:
926 link_info.default_imported_symver = TRUE;
928 case OPTION_NO_WARN_MISMATCH:
929 command_line.warn_mismatch = FALSE;
931 case OPTION_NO_WARN_SEARCH_MISMATCH:
932 command_line.warn_search_mismatch = FALSE;
934 case OPTION_NOINHIBIT_EXEC:
935 force_make_executable = TRUE;
937 case OPTION_NOSTDLIB:
938 config.only_cmd_line_lib_dirs = TRUE;
940 case OPTION_NO_WHOLE_ARCHIVE:
941 input_flags.whole_archive = FALSE;
944 /* FIXME "-O<non-digits> <value>" used to set the address of
945 section <non-digits>. Was this for compatibility with
946 something, or can we create a new option to do that
947 (with a syntax similar to -defsym)?
948 getopt can't handle two args to an option without kludges. */
950 /* Enable optimizations of output files. */
951 link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
954 lang_add_output (optarg, 0);
957 lang_add_output_format (optarg, NULL, NULL, 0);
959 case OPTION_PRINT_OUTPUT_FORMAT:
960 command_line.print_output_format = TRUE;
962 #ifdef ENABLE_PLUGINS
964 plugin_opt_plugin (optarg);
966 case OPTION_PLUGIN_OPT:
967 if (plugin_opt_plugin_arg (optarg))
968 einfo(_("%P%F: bad -plugin-opt option\n"));
970 #endif /* ENABLE_PLUGINS */
972 link_info.emitrelocations = TRUE;
976 if (optind == last_optind)
977 /* This can happen if the user put "-rpath,a" on the command
978 line. (Or something similar. The comma is important).
979 Getopt becomes confused and thinks that this is a -r option
980 but it cannot parse the text after the -r so it refuses to
981 increment the optind counter. Detect this case and issue
982 an error message here. We cannot just make this a warning,
983 increment optind, and continue because getopt is too confused
984 and will seg-fault the next time around. */
985 einfo(_("%P%F: bad -rpath option\n"));
987 link_info.relocatable = TRUE;
988 config.build_constructors = FALSE;
989 config.magic_demand_paged = FALSE;
990 config.text_read_only = FALSE;
991 input_flags.dynamic = FALSE;
994 /* The GNU linker traditionally uses -R to mean to include
995 only the symbols from a file. The Solaris linker uses -R
996 to set the path used by the runtime linker to find
997 libraries. This is the GNU linker -rpath argument. We
998 try to support both simultaneously by checking the file
999 named. If it is a directory, rather than a regular file,
1000 we assume -rpath was meant. */
1004 if (stat (optarg, &s) >= 0
1005 && ! S_ISDIR (s.st_mode))
1007 lang_add_input_file (optarg,
1008 lang_input_file_is_symbols_only_enum,
1015 if (command_line.rpath == NULL)
1016 command_line.rpath = xstrdup (optarg);
1019 size_t rpath_len = strlen (command_line.rpath);
1020 size_t optarg_len = strlen (optarg);
1022 char *cp = command_line.rpath;
1024 /* First see whether OPTARG is already in the path. */
1027 if (strncmp (optarg, cp, optarg_len) == 0
1028 && (cp[optarg_len] == 0
1029 || cp[optarg_len] == config.rpath_separator))
1033 /* Not yet found. */
1034 cp = strchr (cp, config.rpath_separator);
1042 buf = (char *) xmalloc (rpath_len + optarg_len + 2);
1043 sprintf (buf, "%s%c%s", command_line.rpath,
1044 config.rpath_separator, optarg);
1045 free (command_line.rpath);
1046 command_line.rpath = buf;
1050 case OPTION_RPATH_LINK:
1051 if (command_line.rpath_link == NULL)
1052 command_line.rpath_link = xstrdup (optarg);
1057 buf = (char *) xmalloc (strlen (command_line.rpath_link)
1060 sprintf (buf, "%s%c%s", command_line.rpath_link,
1061 config.rpath_separator, optarg);
1062 free (command_line.rpath_link);
1063 command_line.rpath_link = buf;
1066 case OPTION_NO_RELAX:
1072 case OPTION_RETAIN_SYMBOLS_FILE:
1073 add_keepsyms_file (optarg);
1076 link_info.strip = strip_debugger;
1079 link_info.strip = strip_all;
1081 case OPTION_STRIP_DISCARDED:
1082 link_info.strip_discarded = TRUE;
1084 case OPTION_NO_STRIP_DISCARDED:
1085 link_info.strip_discarded = FALSE;
1088 if (config.has_shared)
1090 link_info.shared = TRUE;
1091 /* When creating a shared library, the default
1092 behaviour is to ignore any unresolved references. */
1093 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1094 link_info.unresolved_syms_in_objects = RM_IGNORE;
1095 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1096 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1099 einfo (_("%P%F: -shared not supported\n"));
1102 if (config.has_shared)
1104 link_info.shared = TRUE;
1105 link_info.pie = TRUE;
1108 einfo (_("%P%F: -pie not supported\n"));
1110 case 'h': /* Used on Solaris. */
1112 command_line.soname = optarg;
1114 case OPTION_SORT_COMMON:
1116 || strcmp (optarg, N_("descending")) == 0)
1117 config.sort_common = sort_descending;
1118 else if (strcmp (optarg, N_("ascending")) == 0)
1119 config.sort_common = sort_ascending;
1121 einfo (_("%P%F: invalid common section sorting option: %s\n"),
1124 case OPTION_SORT_SECTION:
1125 if (strcmp (optarg, N_("name")) == 0)
1126 sort_section = by_name;
1127 else if (strcmp (optarg, N_("alignment")) == 0)
1128 sort_section = by_alignment;
1130 einfo (_("%P%F: invalid section sorting option: %s\n"),
1134 config.stats = TRUE;
1136 case OPTION_SYMBOLIC:
1137 command_line.symbolic = symbolic;
1139 case OPTION_SYMBOLIC_FUNCTIONS:
1140 command_line.symbolic = symbolic_functions;
1146 previous_script_handle = saved_script_handle;
1147 ldfile_open_command_file (optarg);
1148 parser_input = input_script;
1150 previous_script_handle = NULL;
1152 case OPTION_DEFAULT_SCRIPT:
1153 command_line.default_script = optarg;
1155 case OPTION_SECTION_START:
1161 /* Check for <something>=<somthing>... */
1162 optarg2 = strchr (optarg, '=');
1163 if (optarg2 == NULL)
1164 einfo (_("%P%F: invalid argument to option"
1165 " \"--section-start\"\n"));
1169 /* So far so good. Are all the args present? */
1170 if ((*optarg == '\0') || (*optarg2 == '\0'))
1171 einfo (_("%P%F: missing argument(s) to option"
1172 " \"--section-start\"\n"));
1174 /* We must copy the section name as set_section_start
1175 doesn't do it for us. */
1176 len = optarg2 - optarg;
1177 sec_name = (char *) xmalloc (len);
1178 memcpy (sec_name, optarg, len - 1);
1179 sec_name[len - 1] = 0;
1181 /* Then set it... */
1182 set_section_start (sec_name, optarg2);
1185 case OPTION_TARGET_HELP:
1186 /* Mention any target specific options. */
1187 ldemul_list_emulation_options (stdout);
1190 set_segment_start (".bss", optarg);
1193 set_segment_start (".data", optarg);
1196 set_segment_start (".text", optarg);
1198 case OPTION_TTEXT_SEGMENT:
1199 set_segment_start (".text-segment", optarg);
1201 case OPTION_TRODATA_SEGMENT:
1202 set_segment_start (".rodata-segment", optarg);
1204 case OPTION_TLDATA_SEGMENT:
1205 set_segment_start (".ldata-segment", optarg);
1207 case OPTION_TRADITIONAL_FORMAT:
1208 link_info.traditional_format = TRUE;
1210 case OPTION_TASK_LINK:
1211 link_info.task_link = TRUE;
1212 /* Fall through - do an implied -r option. */
1214 link_info.relocatable = TRUE;
1215 config.build_constructors = TRUE;
1216 config.magic_demand_paged = FALSE;
1217 config.text_read_only = FALSE;
1218 input_flags.dynamic = FALSE;
1221 ldlang_add_undef (optarg, TRUE);
1225 lang_add_unique (optarg);
1227 config.unique_orphan_sections = TRUE;
1229 case OPTION_VERBOSE:
1231 version_printed = TRUE;
1233 overflow_cutoff_limit = -2;
1237 int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0);
1239 einfo (_("%P%F: invalid number `%s'\n"), optarg);
1240 #ifdef ENABLE_PLUGINS
1241 report_plugin_symbols = level > 1;
1242 #endif /* ENABLE_PLUGINS */
1247 version_printed = TRUE;
1251 version_printed = TRUE;
1253 case OPTION_VERSION:
1257 case OPTION_VERSION_SCRIPT:
1258 /* This option indicates a small script that only specifies
1259 version information. Read it, but don't assume that
1260 we've seen a linker script. */
1262 FILE *hold_script_handle;
1264 hold_script_handle = saved_script_handle;
1265 ldfile_open_command_file (optarg);
1266 saved_script_handle = hold_script_handle;
1267 parser_input = input_version_script;
1271 case OPTION_VERSION_EXPORTS_SECTION:
1272 /* This option records a version symbol to be applied to the
1273 symbols listed for export to be found in the object files
1274 .exports sections. */
1275 command_line.version_exports_section = optarg;
1277 case OPTION_DYNAMIC_LIST_DATA:
1278 command_line.dynamic_list = dynamic_list_data;
1279 if (command_line.symbolic == symbolic)
1280 command_line.symbolic = symbolic_unset;
1282 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1283 lang_append_dynamic_list_cpp_typeinfo ();
1284 if (command_line.dynamic_list != dynamic_list_data)
1285 command_line.dynamic_list = dynamic_list;
1286 if (command_line.symbolic == symbolic)
1287 command_line.symbolic = symbolic_unset;
1289 case OPTION_DYNAMIC_LIST_CPP_NEW:
1290 lang_append_dynamic_list_cpp_new ();
1291 if (command_line.dynamic_list != dynamic_list_data)
1292 command_line.dynamic_list = dynamic_list;
1293 if (command_line.symbolic == symbolic)
1294 command_line.symbolic = symbolic_unset;
1296 case OPTION_DYNAMIC_LIST:
1297 /* This option indicates a small script that only specifies
1298 a dynamic list. Read it, but don't assume that we've
1299 seen a linker script. */
1301 FILE *hold_script_handle;
1303 hold_script_handle = saved_script_handle;
1304 ldfile_open_command_file (optarg);
1305 saved_script_handle = hold_script_handle;
1306 parser_input = input_dynamic_list;
1309 if (command_line.dynamic_list != dynamic_list_data)
1310 command_line.dynamic_list = dynamic_list;
1311 if (command_line.symbolic == symbolic)
1312 command_line.symbolic = symbolic_unset;
1314 case OPTION_WARN_COMMON:
1315 config.warn_common = TRUE;
1317 case OPTION_WARN_CONSTRUCTORS:
1318 config.warn_constructors = TRUE;
1320 case OPTION_WARN_FATAL:
1321 config.fatal_warnings = TRUE;
1323 case OPTION_NO_WARN_FATAL:
1324 config.fatal_warnings = FALSE;
1326 case OPTION_WARN_MULTIPLE_GP:
1327 config.warn_multiple_gp = TRUE;
1329 case OPTION_WARN_ONCE:
1330 config.warn_once = TRUE;
1332 case OPTION_WARN_SECTION_ALIGN:
1333 config.warn_section_align = TRUE;
1335 case OPTION_WARN_SHARED_TEXTREL:
1336 link_info.warn_shared_textrel = TRUE;
1338 case OPTION_WARN_ALTERNATE_EM:
1339 link_info.warn_alternate_em = TRUE;
1341 case OPTION_WHOLE_ARCHIVE:
1342 input_flags.whole_archive = TRUE;
1344 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC:
1345 input_flags.add_DT_NEEDED_for_dynamic = TRUE;
1347 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC:
1348 input_flags.add_DT_NEEDED_for_dynamic = FALSE;
1350 case OPTION_ADD_DT_NEEDED_FOR_REGULAR:
1351 input_flags.add_DT_NEEDED_for_regular = TRUE;
1353 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR:
1354 input_flags.add_DT_NEEDED_for_regular = FALSE;
1359 case OPTION_IGNORE_UNRESOLVED_SYMBOL:
1360 add_ignoresym (&link_info, optarg);
1362 case OPTION_DISCARD_NONE:
1363 link_info.discard = discard_none;
1366 link_info.discard = discard_l;
1369 link_info.discard = discard_all;
1372 if (CONST_STRNEQ (optarg, "P,"))
1374 if (default_dirlist != NULL)
1375 free (default_dirlist);
1376 default_dirlist = xstrdup (optarg);
1381 case OPTION_SPARE_DYNAMIC_TAGS:
1382 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1384 case OPTION_SPLIT_BY_RELOC:
1386 config.split_by_reloc = strtoul (optarg, NULL, 0);
1388 config.split_by_reloc = 32768;
1390 case OPTION_SPLIT_BY_FILE:
1392 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1394 config.split_by_file = 1;
1396 case OPTION_CHECK_SECTIONS:
1397 command_line.check_section_addresses = 1;
1399 case OPTION_NO_CHECK_SECTIONS:
1400 command_line.check_section_addresses = 0;
1402 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1403 command_line.accept_unknown_input_arch = TRUE;
1405 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1406 command_line.accept_unknown_input_arch = FALSE;
1409 lang_enter_group ();
1414 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1416 lang_leave_group ();
1421 link_info.init_function = optarg;
1425 link_info.fini_function = optarg;
1428 case OPTION_REDUCE_MEMORY_OVERHEADS:
1429 link_info.reduce_memory_overheads = TRUE;
1430 if (config.hash_table_size == 0)
1431 config.hash_table_size = 1021;
1434 case OPTION_HASH_SIZE:
1436 bfd_size_type new_size;
1438 new_size = strtoul (optarg, NULL, 0);
1440 config.hash_table_size = new_size;
1442 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1450 lang_leave_group ();
1454 if (default_dirlist != NULL)
1456 set_default_dirlist (default_dirlist);
1457 free (default_dirlist);
1460 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1461 /* FIXME: Should we allow emulations a chance to set this ? */
1462 link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1464 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1465 /* FIXME: Should we allow emulations a chance to set this ? */
1466 link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1468 if (link_info.relocatable)
1470 if (command_line.check_section_addresses < 0)
1471 command_line.check_section_addresses = 0;
1472 if (link_info.shared)
1473 einfo (_("%P%F: -r and -shared may not be used together\n"));
1476 /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data,
1477 --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and
1478 --dynamic-list FILE. -Bsymbolic and -Bsymbolic-functions are
1479 for shared libraries. -Bsymbolic overrides all others and vice
1481 switch (command_line.symbolic)
1483 case symbolic_unset:
1486 /* -Bsymbolic is for shared library only. */
1487 if (link_info.shared)
1489 link_info.symbolic = TRUE;
1490 /* Should we free the unused memory? */
1491 link_info.dynamic_list = NULL;
1492 command_line.dynamic_list = dynamic_list_unset;
1495 case symbolic_functions:
1496 /* -Bsymbolic-functions is for shared library only. */
1497 if (link_info.shared)
1498 command_line.dynamic_list = dynamic_list_data;
1502 switch (command_line.dynamic_list)
1504 case dynamic_list_unset:
1506 case dynamic_list_data:
1507 link_info.dynamic_data = TRUE;
1509 link_info.dynamic = TRUE;
1513 if (! link_info.shared)
1515 if (command_line.filter_shlib)
1516 einfo (_("%P%F: -F may not be used without -shared\n"));
1517 if (command_line.auxiliary_filters)
1518 einfo (_("%P%F: -f may not be used without -shared\n"));
1521 if (! link_info.shared || link_info.pie)
1522 link_info.executable = TRUE;
1524 /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
1525 don't see how else this can be handled, since in this case we
1526 must preserve all externally visible symbols. */
1527 if (link_info.relocatable && link_info.strip == strip_all)
1529 link_info.strip = strip_debugger;
1530 if (link_info.discard == discard_sec_merge)
1531 link_info.discard = discard_all;
1535 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1536 library search path. */
1539 set_default_dirlist (char *dirlist_ptr)
1545 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1548 if (*dirlist_ptr != '\0')
1549 ldfile_add_library_path (dirlist_ptr, TRUE);
1552 dirlist_ptr = p + 1;
1557 set_section_start (char *sect, char *valstr)
1560 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1562 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1563 lang_section_start (sect, exp_intop (val), NULL);
1567 set_segment_start (const char *section, char *valstr)
1573 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1575 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1576 /* If we already have an entry for this segment, update the existing
1579 for (seg = segments; seg; seg = seg->next)
1580 if (strcmp (seg->name, name) == 0)
1585 /* There was no existing value so we must create a new segment
1587 seg = (segment_type *) stat_alloc (sizeof (*seg));
1591 /* Add it to the linked list of segments. */
1592 seg->next = segments;
1594 /* Historically, -Ttext and friends set the base address of a
1595 particular section. For backwards compatibility, we still do
1596 that. If a SEGMENT_START directive is seen, the section address
1597 assignment will be disabled. */
1598 lang_section_start (section, exp_intop (val), seg);
1602 /* Print help messages for the options. */
1608 const char **targets, **pp;
1611 printf (_("Usage: %s [options] file...\n"), program_name);
1613 printf (_("Options:\n"));
1614 for (i = 0; i < OPTION_COUNT; i++)
1616 if (ld_options[i].doc != NULL)
1629 if (ld_options[j].shortopt != '\0'
1630 && ld_options[j].control != NO_HELP)
1632 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1633 len += (comma ? 2 : 0) + 2;
1634 if (ld_options[j].arg != NULL)
1636 if (ld_options[j].opt.has_arg != optional_argument)
1641 printf ("%s", _(ld_options[j].arg));
1642 len += strlen (_(ld_options[j].arg));
1648 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1653 if (ld_options[j].opt.name != NULL
1654 && ld_options[j].control != NO_HELP)
1657 (ld_options[j].control == TWO_DASHES
1658 || ld_options[j].control == EXACTLY_TWO_DASHES);
1662 two_dashes ? "-" : "",
1663 ld_options[j].opt.name);
1664 len += ((comma ? 2 : 0)
1666 + (two_dashes ? 1 : 0)
1667 + strlen (ld_options[j].opt.name));
1668 if (ld_options[j].arg != NULL)
1670 printf (" %s", _(ld_options[j].arg));
1671 len += 1 + strlen (_(ld_options[j].arg));
1677 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1685 for (; len < 30; len++)
1688 printf ("%s\n", _(ld_options[i].doc));
1691 printf (_(" @FILE"));
1692 for (len = strlen (" @FILE"); len < 30; len++)
1694 printf (_("Read options from FILE\n"));
1696 /* Note: Various tools (such as libtool) depend upon the
1697 format of the listings below - do not change them. */
1698 /* xgettext:c-format */
1699 printf (_("%s: supported targets:"), program_name);
1700 targets = bfd_target_list ();
1701 for (pp = targets; *pp != NULL; pp++)
1702 printf (" %s", *pp);
1706 /* xgettext:c-format */
1707 printf (_("%s: supported emulations: "), program_name);
1708 ldemul_list_emulations (stdout);
1711 /* xgettext:c-format */
1712 printf (_("%s: emulation specific options:\n"), program_name);
1713 ldemul_list_emulation_options (stdout);
1716 if (REPORT_BUGS_TO[0])
1717 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);