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* config/tc-mips.c (mips_ip) <'o'>: Remove duplicate
[binutils.git] / ld / lexsup.c
blobacb63fb9da49e699e0176d348310578d8b6a7b53
1 /* Parse options for the GNU linker.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
5
6 This file is part of the GNU Binutils.
7
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.
12
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.
17
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. */
22
23 #include "sysdep.h"
24 #include "bfd.h"
25 #include "bfdver.h"
26 #include "libiberty.h"
27 #include <stdio.h>
28 #include <string.h>
29 #include "safe-ctype.h"
30 #include "getopt.h"
31 #include "bfdlink.h"
32 #include "ld.h"
33 #include "ldmain.h"
34 #include "ldmisc.h"
35 #include "ldexp.h"
36 #include "ldlang.h"
37 #include <ldgram.h>
38 #include "ldlex.h"
39 #include "ldfile.h"
40 #include "ldver.h"
41 #include "ldemul.h"
42 #include "demangle.h"
43 #ifdef ENABLE_PLUGINS
44 #include "plugin.h"
45 #endif /* ENABLE_PLUGINS */
46
47 #ifndef PATH_SEPARATOR
48 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
49 #define PATH_SEPARATOR ';'
50 #else
51 #define PATH_SEPARATOR ':'
52 #endif
53 #endif
54
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)
58 #endif
59
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);
64
65 /* Non-zero if we are processing a --defsym from the command line. */
66 int parsing_defsym = 0;
67
68 /* Codes used for the long options with no short synonyms. 150 isn't
69 special; it's just an arbitrary non-ASCII char value. */
70 enum option_values
71 {
72 OPTION_ASSERT = 150,
73 OPTION_CALL_SHARED,
74 OPTION_CREF,
75 OPTION_DEFSYM,
76 OPTION_DEMANGLE,
77 OPTION_DYNAMIC_LINKER,
78 OPTION_SYSROOT,
79 OPTION_EB,
80 OPTION_EL,
81 OPTION_EMBEDDED_RELOCS,
82 OPTION_EXPORT_DYNAMIC,
83 OPTION_NO_EXPORT_DYNAMIC,
84 OPTION_HELP,
85 OPTION_IGNORE,
86 OPTION_MAP,
87 OPTION_NO_DEMANGLE,
88 OPTION_NO_KEEP_MEMORY,
89 OPTION_NO_WARN_MISMATCH,
90 OPTION_NO_WARN_SEARCH_MISMATCH,
91 OPTION_NOINHIBIT_EXEC,
92 OPTION_NON_SHARED,
93 OPTION_NO_WHOLE_ARCHIVE,
94 OPTION_OFORMAT,
95 OPTION_RELAX,
96 OPTION_NO_RELAX,
97 OPTION_RETAIN_SYMBOLS_FILE,
98 OPTION_RPATH,
99 OPTION_RPATH_LINK,
100 OPTION_SHARED,
101 OPTION_SONAME,
102 OPTION_SORT_COMMON,
103 OPTION_SORT_SECTION,
104 OPTION_STATS,
105 OPTION_SYMBOLIC,
106 OPTION_SYMBOLIC_FUNCTIONS,
107 OPTION_TASK_LINK,
108 OPTION_TBSS,
109 OPTION_TDATA,
110 OPTION_TTEXT,
111 OPTION_TTEXT_SEGMENT,
112 OPTION_TRADITIONAL_FORMAT,
113 OPTION_UR,
114 OPTION_VERBOSE,
115 OPTION_VERSION,
116 OPTION_VERSION_SCRIPT,
117 OPTION_VERSION_EXPORTS_SECTION,
118 OPTION_DYNAMIC_LIST,
119 OPTION_DYNAMIC_LIST_CPP_NEW,
120 OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
121 OPTION_DYNAMIC_LIST_DATA,
122 OPTION_WARN_COMMON,
123 OPTION_WARN_CONSTRUCTORS,
124 OPTION_WARN_FATAL,
125 OPTION_NO_WARN_FATAL,
126 OPTION_WARN_MULTIPLE_GP,
127 OPTION_WARN_ONCE,
128 OPTION_WARN_SECTION_ALIGN,
129 OPTION_SPLIT_BY_RELOC,
130 OPTION_SPLIT_BY_FILE ,
131 OPTION_WHOLE_ARCHIVE,
132 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC,
133 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC,
134 OPTION_ADD_DT_NEEDED_FOR_REGULAR,
135 OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR,
136 OPTION_WRAP,
137 OPTION_FORCE_EXE_SUFFIX,
138 OPTION_GC_SECTIONS,
139 OPTION_NO_GC_SECTIONS,
140 OPTION_PRINT_GC_SECTIONS,
141 OPTION_NO_PRINT_GC_SECTIONS,
142 OPTION_HASH_SIZE,
143 OPTION_CHECK_SECTIONS,
144 OPTION_NO_CHECK_SECTIONS,
145 OPTION_NO_UNDEFINED,
146 OPTION_INIT,
147 OPTION_FINI,
148 OPTION_SECTION_START,
149 OPTION_UNIQUE,
150 OPTION_TARGET_HELP,
151 OPTION_ALLOW_SHLIB_UNDEFINED,
152 OPTION_NO_ALLOW_SHLIB_UNDEFINED,
153 OPTION_ALLOW_MULTIPLE_DEFINITION,
154 OPTION_NO_UNDEFINED_VERSION,
155 OPTION_DEFAULT_SYMVER,
156 OPTION_DEFAULT_IMPORTED_SYMVER,
157 OPTION_DISCARD_NONE,
158 OPTION_SPARE_DYNAMIC_TAGS,
159 OPTION_NO_DEFINE_COMMON,
160 OPTION_NOSTDLIB,
161 OPTION_NO_OMAGIC,
162 OPTION_STRIP_DISCARDED,
163 OPTION_NO_STRIP_DISCARDED,
164 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
165 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
166 OPTION_PIE,
167 OPTION_UNRESOLVED_SYMBOLS,
168 OPTION_WARN_UNRESOLVED_SYMBOLS,
169 OPTION_ERROR_UNRESOLVED_SYMBOLS,
170 OPTION_WARN_SHARED_TEXTREL,
171 OPTION_WARN_ALTERNATE_EM,
172 OPTION_REDUCE_MEMORY_OVERHEADS,
173 #ifdef ENABLE_PLUGINS
174 OPTION_PLUGIN,
175 OPTION_PLUGIN_OPT,
176 #endif /* ENABLE_PLUGINS */
177 OPTION_DEFAULT_SCRIPT,
178 };
179
180 /* The long options. This structure is used for both the option
181 parsing and the help text. */
182
183 enum control_enum {
184 /* Use one dash before long option name. */
185 ONE_DASH,
186 /* Use two dashes before long option name. */
187 TWO_DASHES,
188 /* Only accept two dashes before the long option name.
189 This is an overloading of the use of this enum, since originally it
190 was only intended to tell the --help display function how to display
191 the long option name. This feature was added in order to resolve
192 the confusion about the -omagic command line switch. Is it setting
193 the output file name to "magic" or is it setting the NMAGIC flag on
194 the output ? It has been decided that it is setting the output file
195 name, and that if you want to set the NMAGIC flag you should use -N
196 or --omagic. */
197 EXACTLY_TWO_DASHES,
198 /* Don't mention this option in --help output. */
199 NO_HELP
200 };
201
202 struct ld_option
203 {
204 /* The long option information. */
205 struct option opt;
206 /* The short option with the same meaning ('\0' if none). */
207 char shortopt;
208 /* The name of the argument (NULL if none). */
209 const char *arg;
210 /* The documentation string. If this is NULL, this is a synonym for
211 the previous option. */
212 const char *doc;
213 enum control_enum control;
214 };
215
216 static const struct ld_option ld_options[] =
217 {
218 { {NULL, required_argument, NULL, '\0'},
219 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
220 ONE_DASH },
221 { {"architecture", required_argument, NULL, 'A'},
222 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
223 { {"format", required_argument, NULL, 'b'},
224 'b', N_("TARGET"), N_("Specify target for following input files"),
225 TWO_DASHES },
226 { {"mri-script", required_argument, NULL, 'c'},
227 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
228 { {"dc", no_argument, NULL, 'd'},
229 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
230 { {"dp", no_argument, NULL, 'd'},
231 '\0', NULL, NULL, ONE_DASH },
232 { {"entry", required_argument, NULL, 'e'},
233 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
234 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
235 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
236 { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
237 '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
238 { {"EB", no_argument, NULL, OPTION_EB},
239 '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
240 { {"EL", no_argument, NULL, OPTION_EL},
241 '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
242 { {"auxiliary", required_argument, NULL, 'f'},
243 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
244 TWO_DASHES },
245 { {"filter", required_argument, NULL, 'F'},
246 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
247 TWO_DASHES },
248 { {NULL, no_argument, NULL, '\0'},
249 'g', NULL, N_("Ignored"), ONE_DASH },
250 { {"gpsize", required_argument, NULL, 'G'},
251 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
252 TWO_DASHES },
253 { {"soname", required_argument, NULL, OPTION_SONAME},
254 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
255 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
256 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
257 TWO_DASHES },
258 { {"library", required_argument, NULL, 'l'},
259 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
260 { {"library-path", required_argument, NULL, 'L'},
261 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
262 TWO_DASHES },
263 { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
264 '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
265 { {NULL, required_argument, NULL, '\0'},
266 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
267 { {"print-map", no_argument, NULL, 'M'},
268 'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
269 { {"nmagic", no_argument, NULL, 'n'},
270 'n', NULL, N_("Do not page align data"), TWO_DASHES },
271 { {"omagic", no_argument, NULL, 'N'},
272 'N', NULL, N_("Do not page align data, do not make text readonly"),
273 EXACTLY_TWO_DASHES },
274 { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
275 '\0', NULL, N_("Page align data, make text readonly"),
276 EXACTLY_TWO_DASHES },
277 { {"output", required_argument, NULL, 'o'},
278 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
279 { {NULL, required_argument, NULL, '\0'},
280 'O', NULL, N_("Optimize output file"), ONE_DASH },
281 #ifdef ENABLE_PLUGINS
282 { {"plugin", required_argument, NULL, OPTION_PLUGIN},
283 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH },
284 { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT},
285 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH },
286 { {"flto", optional_argument, NULL, OPTION_IGNORE},
287 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
288 ONE_DASH },
289 { {"flto-partition=", required_argument, NULL, OPTION_IGNORE},
290 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
291 ONE_DASH },
292 #endif /* ENABLE_PLUGINS */
293 { {"Qy", no_argument, NULL, OPTION_IGNORE},
294 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
295 { {"emit-relocs", no_argument, NULL, 'q'},
296 'q', NULL, "Generate relocations in final output", TWO_DASHES },
297 { {"relocatable", no_argument, NULL, 'r'},
298 'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
299 { {NULL, no_argument, NULL, '\0'},
300 'i', NULL, NULL, ONE_DASH },
301 { {"just-symbols", required_argument, NULL, 'R'},
302 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
303 TWO_DASHES },
304 { {"strip-all", no_argument, NULL, 's'},
305 's', NULL, N_("Strip all symbols"), TWO_DASHES },
306 { {"strip-debug", no_argument, NULL, 'S'},
307 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
308 { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
309 '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
310 { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
311 '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
312 { {"trace", no_argument, NULL, 't'},
313 't', NULL, N_("Trace file opens"), TWO_DASHES },
314 { {"script", required_argument, NULL, 'T'},
315 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
316 { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
317 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
318 { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
319 '\0', NULL, NULL, ONE_DASH },
320 { {"undefined", required_argument, NULL, 'u'},
321 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
322 TWO_DASHES },
323 { {"unique", optional_argument, NULL, OPTION_UNIQUE},
324 '\0', N_("[=SECTION]"),
325 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
326 { {"Ur", no_argument, NULL, OPTION_UR},
327 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
328 { {"version", no_argument, NULL, OPTION_VERSION},
329 'v', NULL, N_("Print version information"), TWO_DASHES },
330 { {NULL, no_argument, NULL, '\0'},
331 'V', NULL, N_("Print version and emulation information"), ONE_DASH },
332 { {"discard-all", no_argument, NULL, 'x'},
333 'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
334 { {"discard-locals", no_argument, NULL, 'X'},
335 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
336 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
337 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
338 { {"trace-symbol", required_argument, NULL, 'y'},
339 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
340 { {NULL, required_argument, NULL, '\0'},
341 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
342 ONE_DASH },
343 { {"start-group", no_argument, NULL, '('},
344 '(', NULL, N_("Start a group"), TWO_DASHES },
345 { {"end-group", no_argument, NULL, ')'},
346 ')', NULL, N_("End a group"), TWO_DASHES },
347 { {"accept-unknown-input-arch", no_argument, NULL,
348 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
349 '\0', NULL,
350 N_("Accept input files whose architecture cannot be determined"),
351 TWO_DASHES },
352 { {"no-accept-unknown-input-arch", no_argument, NULL,
353 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
354 '\0', NULL, N_("Reject input files whose architecture is unknown"),
355 TWO_DASHES },
356
357 /* The next two options are deprecated because of their similarity to
358 --as-needed and --no-as-needed. They have been replaced by
359 --copy-dt-needed-entries and --no-copy-dt-needed-entries. */
360 { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
361 '\0', NULL, NULL, NO_HELP },
362 { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
363 '\0', NULL, NULL, NO_HELP },
364
365 { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR},
366 '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
367 TWO_DASHES },
368 { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR},
369 '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
370 " the command line"),
371 TWO_DASHES },
372 { {"assert", required_argument, NULL, OPTION_ASSERT},
373 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
374 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
375 '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
376 { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
377 '\0', NULL, NULL, ONE_DASH },
378 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
379 '\0', NULL, NULL, ONE_DASH },
380 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
381 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
382 { {"dn", no_argument, NULL, OPTION_NON_SHARED},
383 '\0', NULL, NULL, ONE_DASH },
384 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
385 '\0', NULL, NULL, ONE_DASH },
386 { {"static", no_argument, NULL, OPTION_NON_SHARED},
387 '\0', NULL, NULL, ONE_DASH },
388 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
389 '\0', NULL, N_("Bind global references locally"), ONE_DASH },
390 { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
391 '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
392 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
393 '\0', NULL, N_("Check section addresses for overlaps (default)"),
394 TWO_DASHES },
395 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
396 '\0', NULL, N_("Do not check section addresses for overlaps"),
397 TWO_DASHES },
398 { {"copy-dt-needed-entries", no_argument, NULL,
399 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
400 '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
401 TWO_DASHES },
402 { {"no-copy-dt-needed-entries", no_argument, NULL,
403 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
404 '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
405 TWO_DASHES },
406
407 { {"cref", no_argument, NULL, OPTION_CREF},
408 '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
409 { {"defsym", required_argument, NULL, OPTION_DEFSYM},
410 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
411 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
412 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
413 TWO_DASHES },
414 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
415 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
416 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
417 '\0', NULL, N_("Treat warnings as errors"),
418 TWO_DASHES },
419 { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
420 '\0', NULL, N_("Do not treat warnings as errors (default)"),
421 TWO_DASHES },
422 { {"fini", required_argument, NULL, OPTION_FINI},
423 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
424 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
425 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
426 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
427 '\0', NULL, N_("Remove unused sections (on some targets)"),
428 TWO_DASHES },
429 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
430 '\0', NULL, N_("Don't remove unused sections (default)"),
431 TWO_DASHES },
432 { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
433 '\0', NULL, N_("List removed unused sections on stderr"),
434 TWO_DASHES },
435 { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
436 '\0', NULL, N_("Do not list removed unused sections"),
437 TWO_DASHES },
438 { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
439 '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
440 TWO_DASHES },
441 { {"help", no_argument, NULL, OPTION_HELP},
442 '\0', NULL, N_("Print option help"), TWO_DASHES },
443 { {"init", required_argument, NULL, OPTION_INIT},
444 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
445 { {"Map", required_argument, NULL, OPTION_MAP},
446 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
447 { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
448 '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
449 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
450 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
451 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
452 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
453 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
454 '\0', NULL, N_("Do not allow unresolved references in object files"),
455 TWO_DASHES },
456 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
457 '\0', NULL, N_("Allow unresolved references in shared libaries"),
458 TWO_DASHES },
459 { {"no-allow-shlib-undefined", no_argument, NULL,
460 OPTION_NO_ALLOW_SHLIB_UNDEFINED},
461 '\0', NULL, N_("Do not allow unresolved references in shared libs"),
462 TWO_DASHES },
463 { {"allow-multiple-definition", no_argument, NULL,
464 OPTION_ALLOW_MULTIPLE_DEFINITION},
465 '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
466 { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
467 '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
468 { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
469 '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
470 { {"default-imported-symver", no_argument, NULL,
471 OPTION_DEFAULT_IMPORTED_SYMVER},
472 '\0', NULL, N_("Create default symbol version for imported symbols"),
473 TWO_DASHES },
474 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
475 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
476 { {"no-warn-search-mismatch", no_argument, NULL,
477 OPTION_NO_WARN_SEARCH_MISMATCH},
478 '\0', NULL, N_("Don't warn on finding an incompatible library"),
479 TWO_DASHES},
480 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
481 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
482 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
483 '\0', NULL, N_("Create an output file even if errors occur"),
484 TWO_DASHES },
485 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
486 '\0', NULL, NULL, NO_HELP },
487 { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
488 '\0', NULL, N_("Only use library directories specified on\n"
489 " the command line"),
490 ONE_DASH },
491 { {"oformat", required_argument, NULL, OPTION_OFORMAT},
492 '\0', N_("TARGET"), N_("Specify target of output file"),
493 EXACTLY_TWO_DASHES },
494 { {"qmagic", no_argument, NULL, OPTION_IGNORE},
495 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
496 { {"reduce-memory-overheads", no_argument, NULL,
497 OPTION_REDUCE_MEMORY_OVERHEADS},
498 '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
499 TWO_DASHES },
500 { {"relax", no_argument, NULL, OPTION_RELAX},
501 '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES },
502 { {"no-relax", no_argument, NULL, OPTION_NO_RELAX},
503 '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES },
504 { {"retain-symbols-file", required_argument, NULL,
505 OPTION_RETAIN_SYMBOLS_FILE},
506 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
507 { {"rpath", required_argument, NULL, OPTION_RPATH},
508 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
509 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
510 '\0', N_("PATH"), N_("Set link time shared library search path"),
511 ONE_DASH },
512 { {"shared", no_argument, NULL, OPTION_SHARED},
513 '\0', NULL, N_("Create a shared library"), ONE_DASH },
514 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
515 '\0', NULL, NULL, ONE_DASH },
516 { {"pie", no_argument, NULL, OPTION_PIE},
517 '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
518 { {"pic-executable", no_argument, NULL, OPTION_PIE},
519 '\0', NULL, NULL, TWO_DASHES },
520 { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
521 '\0', N_("[=ascending|descending]"),
522 N_("Sort common symbols by alignment [in specified order]"),
523 TWO_DASHES },
524 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
525 '\0', NULL, NULL, NO_HELP },
526 { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
527 '\0', N_("name|alignment"),
528 N_("Sort sections by name or maximum alignment"), TWO_DASHES },
529 { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
530 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
531 TWO_DASHES },
532 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
533 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
534 TWO_DASHES },
535 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
536 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
537 TWO_DASHES },
538 { {"stats", no_argument, NULL, OPTION_STATS},
539 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
540 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
541 '\0', NULL, N_("Display target specific options"), TWO_DASHES },
542 { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
543 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
544 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
545 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
546 { {"section-start", required_argument, NULL, OPTION_SECTION_START},
547 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
548 TWO_DASHES },
549 { {"Tbss", required_argument, NULL, OPTION_TBSS},
550 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
551 { {"Tdata", required_argument, NULL, OPTION_TDATA},
552 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
553 { {"Ttext", required_argument, NULL, OPTION_TTEXT},
554 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
555 { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT},
556 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
557 { {"unresolved-symbols=<method>", required_argument, NULL,
558 OPTION_UNRESOLVED_SYMBOLS},
559 '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n"
560 " ignore-all, report-all, ignore-in-object-files,\n"
561 " ignore-in-shared-libs"),
562 TWO_DASHES },
563 { {"verbose", no_argument, NULL, OPTION_VERBOSE},
564 '\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
565 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
566 '\0', NULL, NULL, NO_HELP },
567 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
568 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
569 { {"version-exports-section", required_argument, NULL,
570 OPTION_VERSION_EXPORTS_SECTION },
571 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
572 " SYMBOL as the version."),
573 TWO_DASHES },
574 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
575 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
576 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
577 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
578 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
579 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
580 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
581 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
582 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
583 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
584 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
585 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
586 TWO_DASHES },
587 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
588 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
589 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
590 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
591 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
592 '\0', NULL, N_("Warn if start of section changes due to alignment"),
593 TWO_DASHES },
594 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
595 '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
596 TWO_DASHES },
597 { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
598 '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
599 TWO_DASHES },
600 { {"warn-unresolved-symbols", no_argument, NULL,
601 OPTION_WARN_UNRESOLVED_SYMBOLS},
602 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
603 { {"error-unresolved-symbols", no_argument, NULL,
604 OPTION_ERROR_UNRESOLVED_SYMBOLS},
605 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
606 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
607 '\0', NULL, N_("Include all objects from following archives"),
608 TWO_DASHES },
609 { {"wrap", required_argument, NULL, OPTION_WRAP},
610 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
611 };
612
613 #define OPTION_COUNT ARRAY_SIZE (ld_options)
614
615 void
616 parse_args (unsigned argc, char **argv)
617 {
618 unsigned i;
619 int is, il, irl;
620 int ingroup = 0;
621 char *default_dirlist = NULL;
622 char *shortopts;
623 struct option *longopts;
624 struct option *really_longopts;
625 int last_optind;
626 enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
627
628 shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2);
629 longopts = (struct option *)
630 xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
631 really_longopts = (struct option *)
632 malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
633
634 /* Starting the short option string with '-' is for programs that
635 expect options and other ARGV-elements in any order and that care about
636 the ordering of the two. We describe each non-option ARGV-element
637 as if it were the argument of an option with character code 1. */
638 shortopts[0] = '-';
639 is = 1;
640 il = 0;
641 irl = 0;
642 for (i = 0; i < OPTION_COUNT; i++)
643 {
644 if (ld_options[i].shortopt != '\0')
645 {
646 shortopts[is] = ld_options[i].shortopt;
647 ++is;
648 if (ld_options[i].opt.has_arg == required_argument
649 || ld_options[i].opt.has_arg == optional_argument)
650 {
651 shortopts[is] = ':';
652 ++is;
653 if (ld_options[i].opt.has_arg == optional_argument)
654 {
655 shortopts[is] = ':';
656 ++is;
657 }
658 }
659 }
660 if (ld_options[i].opt.name != NULL)
661 {
662 if (ld_options[i].control == EXACTLY_TWO_DASHES)
663 {
664 really_longopts[irl] = ld_options[i].opt;
665 ++irl;
666 }
667 else
668 {
669 longopts[il] = ld_options[i].opt;
670 ++il;
671 }
672 }
673 }
674 shortopts[is] = '\0';
675 longopts[il].name = NULL;
676 really_longopts[irl].name = NULL;
677
678 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
679
680 /* The -G option is ambiguous on different platforms. Sometimes it
681 specifies the largest data size to put into the small data
682 section. Sometimes it is equivalent to --shared. Unfortunately,
683 the first form takes an argument, while the second does not.
684
685 We need to permit the --shared form because on some platforms,
686 such as Solaris, gcc -shared will pass -G to the linker.
687
688 To permit either usage, we look through the argument list. If we
689 find -G not followed by a number, we change it into --shared.
690 This will work for most normal cases. */
691 for (i = 1; i < argc; i++)
692 if (strcmp (argv[i], "-G") == 0
693 && (i + 1 >= argc
694 || ! ISDIGIT (argv[i + 1][0])))
695 argv[i] = (char *) "--shared";
696
697 /* Because we permit long options to start with a single dash, and
698 we have a --library option, and the -l option is conventionally
699 used with an immediately following argument, we can have bad
700 results if somebody tries to use -l with a library whose name
701 happens to start with "ibrary", as in -li. We avoid problems by
702 simply turning -l into --library. This means that users will
703 have to use two dashes in order to use --library, which is OK
704 since that's how it is documented.
705
706 FIXME: It's possible that this problem can arise for other short
707 options as well, although the user does always have the recourse
708 of adding a space between the option and the argument. */
709 for (i = 1; i < argc; i++)
710 {
711 if (argv[i][0] == '-'
712 && argv[i][1] == 'l'
713 && argv[i][2] != '\0')
714 {
715 char *n;
716
717 n = (char *) xmalloc (strlen (argv[i]) + 20);
718 sprintf (n, "--library=%s", argv[i] + 2);
719 argv[i] = n;
720 }
721 }
722
723 last_optind = -1;
724 while (1)
725 {
726 int longind;
727 int optc;
728
729 /* Using last_optind lets us avoid calling ldemul_parse_args
730 multiple times on a single option, which would lead to
731 confusion in the internal static variables maintained by
732 getopt. This could otherwise happen for an argument like
733 -nx, in which the -n is parsed as a single option, and we
734 loop around to pick up the -x. */
735 if (optind != last_optind)
736 if (ldemul_parse_args (argc, argv))
737 continue;
738
739 /* getopt_long_only is like getopt_long, but '-' as well as '--'
740 can indicate a long option. */
741 opterr = 0;
742 last_optind = optind;
743 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
744 if (optc == '?')
745 {
746 optind = last_optind;
747 optc = getopt_long (argc, argv, "-", really_longopts, &longind);
748 }
749
750 if (ldemul_handle_option (optc))
751 continue;
752
753 if (optc == -1)
754 break;
755
756 switch (optc)
757 {
758 case '?':
759 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
760 /* Fall through. */
761
762 default:
763 einfo (_("%P%F: use the --help option for usage information\n"));
764
765 case 1: /* File name. */
766 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
767 break;
768
769 case OPTION_IGNORE:
770 break;
771 case 'a':
772 /* For HP/UX compatibility. Actually -a shared should mean
773 ``use only shared libraries'' but, then, we don't
774 currently support shared libraries on HP/UX anyhow. */
775 if (strcmp (optarg, "archive") == 0)
776 config.dynamic_link = FALSE;
777 else if (strcmp (optarg, "shared") == 0
778 || strcmp (optarg, "default") == 0)
779 config.dynamic_link = TRUE;
780 else
781 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
782 break;
783 case OPTION_ASSERT:
784 /* FIXME: We just ignore these, but we should handle them. */
785 if (strcmp (optarg, "definitions") == 0)
786 ;
787 else if (strcmp (optarg, "nodefinitions") == 0)
788 ;
789 else if (strcmp (optarg, "nosymbolic") == 0)
790 ;
791 else if (strcmp (optarg, "pure-text") == 0)
792 ;
793 else
794 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
795 break;
796 case 'A':
797 ldfile_add_arch (optarg);
798 break;
799 case 'b':
800 lang_add_target (optarg);
801 break;
802 case 'c':
803 ldfile_open_command_file (optarg);
804 parser_input = input_mri_script;
805 yyparse ();
806 break;
807 case OPTION_CALL_SHARED:
808 config.dynamic_link = TRUE;
809 break;
810 case OPTION_NON_SHARED:
811 config.dynamic_link = FALSE;
812 break;
813 case OPTION_CREF:
814 command_line.cref = TRUE;
815 link_info.notice_all = TRUE;
816 break;
817 case 'd':
818 command_line.force_common_definition = TRUE;
819 break;
820 case OPTION_DEFSYM:
821 lex_string = optarg;
822 lex_redirect (optarg);
823 parser_input = input_defsym;
824 parsing_defsym = 1;
825 yyparse ();
826 parsing_defsym = 0;
827 lex_string = NULL;
828 break;
829 case OPTION_DEMANGLE:
830 demangling = TRUE;
831 if (optarg != NULL)
832 {
833 enum demangling_styles style;
834
835 style = cplus_demangle_name_to_style (optarg);
836 if (style == unknown_demangling)
837 einfo (_("%F%P: unknown demangling style `%s'"),
838 optarg);
839
840 cplus_demangle_set_style (style);
841 }
842 break;
843 case 'I': /* Used on Solaris. */
844 case OPTION_DYNAMIC_LINKER:
845 command_line.interpreter = optarg;
846 break;
847 case OPTION_SYSROOT:
848 /* Already handled in ldmain.c. */
849 break;
850 case OPTION_EB:
851 command_line.endian = ENDIAN_BIG;
852 break;
853 case OPTION_EL:
854 command_line.endian = ENDIAN_LITTLE;
855 break;
856 case OPTION_EMBEDDED_RELOCS:
857 command_line.embedded_relocs = TRUE;
858 break;
859 case OPTION_EXPORT_DYNAMIC:
860 case 'E': /* HP/UX compatibility. */
861 link_info.export_dynamic = TRUE;
862 break;
863 case OPTION_NO_EXPORT_DYNAMIC:
864 link_info.export_dynamic = FALSE;
865 break;
866 case 'e':
867 lang_add_entry (optarg, TRUE);
868 break;
869 case 'f':
870 if (command_line.auxiliary_filters == NULL)
871 {
872 command_line.auxiliary_filters = (char **)
873 xmalloc (2 * sizeof (char *));
874 command_line.auxiliary_filters[0] = optarg;
875 command_line.auxiliary_filters[1] = NULL;
876 }
877 else
878 {
879 int c;
880 char **p;
881
882 c = 0;
883 for (p = command_line.auxiliary_filters; *p != NULL; p++)
884 ++c;
885 command_line.auxiliary_filters = (char **)
886 xrealloc (command_line.auxiliary_filters,
887 (c + 2) * sizeof (char *));
888 command_line.auxiliary_filters[c] = optarg;
889 command_line.auxiliary_filters[c + 1] = NULL;
890 }
891 break;
892 case 'F':
893 command_line.filter_shlib = optarg;
894 break;
895 case OPTION_FORCE_EXE_SUFFIX:
896 command_line.force_exe_suffix = TRUE;
897 break;
898 case 'G':
899 {
900 char *end;
901 g_switch_value = strtoul (optarg, &end, 0);
902 if (*end)
903 einfo (_("%P%F: invalid number `%s'\n"), optarg);
904 }
905 break;
906 case 'g':
907 /* Ignore. */
908 break;
909 case OPTION_GC_SECTIONS:
910 link_info.gc_sections = TRUE;
911 break;
912 case OPTION_PRINT_GC_SECTIONS:
913 link_info.print_gc_sections = TRUE;
914 break;
915 case OPTION_HELP:
916 help ();
917 xexit (0);
918 break;
919 case 'L':
920 ldfile_add_library_path (optarg, TRUE);
921 break;
922 case 'l':
923 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
924 break;
925 case 'M':
926 config.map_filename = "-";
927 break;
928 case 'm':
929 /* Ignore. Was handled in a pre-parse. */
930 break;
931 case OPTION_MAP:
932 config.map_filename = optarg;
933 break;
934 case 'N':
935 config.text_read_only = FALSE;
936 config.magic_demand_paged = FALSE;
937 config.dynamic_link = FALSE;
938 break;
939 case OPTION_NO_OMAGIC:
940 config.text_read_only = TRUE;
941 config.magic_demand_paged = TRUE;
942 /* NB/ Does not set dynamic_link to TRUE.
943 Use --call-shared or -Bdynamic for this. */
944 break;
945 case 'n':
946 config.magic_demand_paged = FALSE;
947 config.dynamic_link = FALSE;
948 break;
949 case OPTION_NO_DEFINE_COMMON:
950 command_line.inhibit_common_definition = TRUE;
951 break;
952 case OPTION_NO_DEMANGLE:
953 demangling = FALSE;
954 break;
955 case OPTION_NO_GC_SECTIONS:
956 link_info.gc_sections = FALSE;
957 break;
958 case OPTION_NO_PRINT_GC_SECTIONS:
959 link_info.print_gc_sections = FALSE;
960 break;
961 case OPTION_NO_KEEP_MEMORY:
962 link_info.keep_memory = FALSE;
963 break;
964 case OPTION_NO_UNDEFINED:
965 link_info.unresolved_syms_in_objects
966 = how_to_report_unresolved_symbols;
967 break;
968 case OPTION_ALLOW_SHLIB_UNDEFINED:
969 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
970 break;
971 case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
972 link_info.unresolved_syms_in_shared_libs
973 = how_to_report_unresolved_symbols;
974 break;
975 case OPTION_UNRESOLVED_SYMBOLS:
976 if (strcmp (optarg, "ignore-all") == 0)
977 {
978 link_info.unresolved_syms_in_objects = RM_IGNORE;
979 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
980 }
981 else if (strcmp (optarg, "report-all") == 0)
982 {
983 link_info.unresolved_syms_in_objects
984 = how_to_report_unresolved_symbols;
985 link_info.unresolved_syms_in_shared_libs
986 = how_to_report_unresolved_symbols;
987 }
988 else if (strcmp (optarg, "ignore-in-object-files") == 0)
989 {
990 link_info.unresolved_syms_in_objects = RM_IGNORE;
991 link_info.unresolved_syms_in_shared_libs
992 = how_to_report_unresolved_symbols;
993 }
994 else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
995 {
996 link_info.unresolved_syms_in_objects
997 = how_to_report_unresolved_symbols;
998 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
999 }
1000 else
1001 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
1002 break;
1003 case OPTION_WARN_UNRESOLVED_SYMBOLS:
1004 how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
1005 if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
1006 link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
1007 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
1008 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
1009 break;
1010
1011 case OPTION_ERROR_UNRESOLVED_SYMBOLS:
1012 how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
1013 if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
1014 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
1015 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
1016 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
1017 break;
1018 case OPTION_ALLOW_MULTIPLE_DEFINITION:
1019 link_info.allow_multiple_definition = TRUE;
1020 break;
1021 case OPTION_NO_UNDEFINED_VERSION:
1022 link_info.allow_undefined_version = FALSE;
1023 break;
1024 case OPTION_DEFAULT_SYMVER:
1025 link_info.create_default_symver = TRUE;
1026 break;
1027 case OPTION_DEFAULT_IMPORTED_SYMVER:
1028 link_info.default_imported_symver = TRUE;
1029 break;
1030 case OPTION_NO_WARN_MISMATCH:
1031 command_line.warn_mismatch = FALSE;
1032 break;
1033 case OPTION_NO_WARN_SEARCH_MISMATCH:
1034 command_line.warn_search_mismatch = FALSE;
1035 break;
1036 case OPTION_NOINHIBIT_EXEC:
1037 force_make_executable = TRUE;
1038 break;
1039 case OPTION_NOSTDLIB:
1040 config.only_cmd_line_lib_dirs = TRUE;
1041 break;
1042 case OPTION_NO_WHOLE_ARCHIVE:
1043 whole_archive = FALSE;
1044 break;
1045 case 'O':
1046 /* FIXME "-O<non-digits> <value>" used to set the address of
1047 section <non-digits>. Was this for compatibility with
1048 something, or can we create a new option to do that
1049 (with a syntax similar to -defsym)?
1050 getopt can't handle two args to an option without kludges. */
1051
1052 /* Enable optimizations of output files. */
1053 link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
1054 break;
1055 case 'o':
1056 lang_add_output (optarg, 0);
1057 break;
1058 case OPTION_OFORMAT:
1059 lang_add_output_format (optarg, NULL, NULL, 0);
1060 break;
1061 #ifdef ENABLE_PLUGINS
1062 case OPTION_PLUGIN:
1063 if (plugin_opt_plugin (optarg))
1064 einfo (_("%P%F: %s: error loading plugin\n"),
1065 plugin_error_plugin ());
1066 break;
1067 case OPTION_PLUGIN_OPT:
1068 if (plugin_opt_plugin_arg (optarg))
1069 einfo(_("%P%F: bad -plugin-opt option\n"));
1070 break;
1071 #endif /* ENABLE_PLUGINS */
1072 case 'q':
1073 link_info.emitrelocations = TRUE;
1074 break;
1075 case 'i':
1076 case 'r':
1077 if (optind == last_optind)
1078 /* This can happen if the user put "-rpath,a" on the command
1079 line. (Or something similar. The comma is important).
1080 Getopt becomes confused and thinks that this is a -r option
1081 but it cannot parse the text after the -r so it refuses to
1082 increment the optind counter. Detect this case and issue
1083 an error message here. We cannot just make this a warning,
1084 increment optind, and continue because getopt is too confused
1085 and will seg-fault the next time around. */
1086 einfo(_("%P%F: bad -rpath option\n"));
1087
1088 link_info.relocatable = TRUE;
1089 config.build_constructors = FALSE;
1090 config.magic_demand_paged = FALSE;
1091 config.text_read_only = FALSE;
1092 config.dynamic_link = FALSE;
1093 break;
1094 case 'R':
1095 /* The GNU linker traditionally uses -R to mean to include
1096 only the symbols from a file. The Solaris linker uses -R
1097 to set the path used by the runtime linker to find
1098 libraries. This is the GNU linker -rpath argument. We
1099 try to support both simultaneously by checking the file
1100 named. If it is a directory, rather than a regular file,
1101 we assume -rpath was meant. */
1102 {
1103 struct stat s;
1104
1105 if (stat (optarg, &s) >= 0
1106 && ! S_ISDIR (s.st_mode))
1107 {
1108 lang_add_input_file (optarg,
1109 lang_input_file_is_symbols_only_enum,
1110 NULL);
1111 break;
1112 }
1113 }
1114 /* Fall through. */
1115 case OPTION_RPATH:
1116 if (command_line.rpath == NULL)
1117 command_line.rpath = xstrdup (optarg);
1118 else
1119 {
1120 size_t rpath_len = strlen (command_line.rpath);
1121 size_t optarg_len = strlen (optarg);
1122 char *buf;
1123 char *cp = command_line.rpath;
1124
1125 /* First see whether OPTARG is already in the path. */
1126 do
1127 {
1128 if (strncmp (optarg, cp, optarg_len) == 0
1129 && (cp[optarg_len] == 0
1130 || cp[optarg_len] == config.rpath_separator))
1131 /* We found it. */
1132 break;
1133
1134 /* Not yet found. */
1135 cp = strchr (cp, config.rpath_separator);
1136 if (cp != NULL)
1137 ++cp;
1138 }
1139 while (cp != NULL);
1140
1141 if (cp == NULL)
1142 {
1143 buf = (char *) xmalloc (rpath_len + optarg_len + 2);
1144 sprintf (buf, "%s%c%s", command_line.rpath,
1145 config.rpath_separator, optarg);
1146 free (command_line.rpath);
1147 command_line.rpath = buf;
1148 }
1149 }
1150 break;
1151 case OPTION_RPATH_LINK:
1152 if (command_line.rpath_link == NULL)
1153 command_line.rpath_link = xstrdup (optarg);
1154 else
1155 {
1156 char *buf;
1157
1158 buf = (char *) xmalloc (strlen (command_line.rpath_link)
1159 + strlen (optarg)
1160 + 2);
1161 sprintf (buf, "%s%c%s", command_line.rpath_link,
1162 config.rpath_separator, optarg);
1163 free (command_line.rpath_link);
1164 command_line.rpath_link = buf;
1165 }
1166 break;
1167 case OPTION_NO_RELAX:
1168 DISABLE_RELAXATION;
1169 break;
1170 case OPTION_RELAX:
1171 ENABLE_RELAXATION;
1172 break;
1173 case OPTION_RETAIN_SYMBOLS_FILE:
1174 add_keepsyms_file (optarg);
1175 break;
1176 case 'S':
1177 link_info.strip = strip_debugger;
1178 break;
1179 case 's':
1180 link_info.strip = strip_all;
1181 break;
1182 case OPTION_STRIP_DISCARDED:
1183 link_info.strip_discarded = TRUE;
1184 break;
1185 case OPTION_NO_STRIP_DISCARDED:
1186 link_info.strip_discarded = FALSE;
1187 break;
1188 case OPTION_SHARED:
1189 if (config.has_shared)
1190 {
1191 link_info.shared = TRUE;
1192 /* When creating a shared library, the default
1193 behaviour is to ignore any unresolved references. */
1194 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1195 link_info.unresolved_syms_in_objects = RM_IGNORE;
1196 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1197 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1198 }
1199 else
1200 einfo (_("%P%F: -shared not supported\n"));
1201 break;
1202 case OPTION_PIE:
1203 if (config.has_shared)
1204 {
1205 link_info.shared = TRUE;
1206 link_info.pie = TRUE;
1207 }
1208 else
1209 einfo (_("%P%F: -pie not supported\n"));
1210 break;
1211 case 'h': /* Used on Solaris. */
1212 case OPTION_SONAME:
1213 command_line.soname = optarg;
1214 break;
1215 case OPTION_SORT_COMMON:
1216 if (optarg == NULL
1217 || strcmp (optarg, N_("descending")) == 0)
1218 config.sort_common = sort_descending;
1219 else if (strcmp (optarg, N_("ascending")) == 0)
1220 config.sort_common = sort_ascending;
1221 else
1222 einfo (_("%P%F: invalid common section sorting option: %s\n"),
1223 optarg);
1224 break;
1225 case OPTION_SORT_SECTION:
1226 if (strcmp (optarg, N_("name")) == 0)
1227 sort_section = by_name;
1228 else if (strcmp (optarg, N_("alignment")) == 0)
1229 sort_section = by_alignment;
1230 else
1231 einfo (_("%P%F: invalid section sorting option: %s\n"),
1232 optarg);
1233 break;
1234 case OPTION_STATS:
1235 config.stats = TRUE;
1236 break;
1237 case OPTION_SYMBOLIC:
1238 command_line.symbolic = symbolic;
1239 break;
1240 case OPTION_SYMBOLIC_FUNCTIONS:
1241 command_line.symbolic = symbolic_functions;
1242 break;
1243 case 't':
1244 trace_files = TRUE;
1245 break;
1246 case 'T':
1247 previous_script_handle = saved_script_handle;
1248 ldfile_open_command_file (optarg);
1249 parser_input = input_script;
1250 yyparse ();
1251 previous_script_handle = NULL;
1252 break;
1253 case OPTION_DEFAULT_SCRIPT:
1254 command_line.default_script = optarg;
1255 break;
1256 case OPTION_SECTION_START:
1257 {
1258 char *optarg2;
1259 char *sec_name;
1260 int len;
1261
1262 /* Check for <something>=<somthing>... */
1263 optarg2 = strchr (optarg, '=');
1264 if (optarg2 == NULL)
1265 einfo (_("%P%F: invalid argument to option"
1266 " \"--section-start\"\n"));
1267
1268 optarg2++;
1269
1270 /* So far so good. Are all the args present? */
1271 if ((*optarg == '\0') || (*optarg2 == '\0'))
1272 einfo (_("%P%F: missing argument(s) to option"
1273 " \"--section-start\"\n"));
1274
1275 /* We must copy the section name as set_section_start
1276 doesn't do it for us. */
1277 len = optarg2 - optarg;
1278 sec_name = (char *) xmalloc (len);
1279 memcpy (sec_name, optarg, len - 1);
1280 sec_name[len - 1] = 0;
1281
1282 /* Then set it... */
1283 set_section_start (sec_name, optarg2);
1284 }
1285 break;
1286 case OPTION_TARGET_HELP:
1287 /* Mention any target specific options. */
1288 ldemul_list_emulation_options (stdout);
1289 exit (0);
1290 case OPTION_TBSS:
1291 set_segment_start (".bss", optarg);
1292 break;
1293 case OPTION_TDATA:
1294 set_segment_start (".data", optarg);
1295 break;
1296 case OPTION_TTEXT:
1297 set_segment_start (".text", optarg);
1298 break;
1299 case OPTION_TTEXT_SEGMENT:
1300 set_segment_start (".text-segment", optarg);
1301 break;
1302 case OPTION_TRADITIONAL_FORMAT:
1303 link_info.traditional_format = TRUE;
1304 break;
1305 case OPTION_TASK_LINK:
1306 link_info.task_link = TRUE;
1307 /* Fall through - do an implied -r option. */
1308 case OPTION_UR:
1309 link_info.relocatable = TRUE;
1310 config.build_constructors = TRUE;
1311 config.magic_demand_paged = FALSE;
1312 config.text_read_only = FALSE;
1313 config.dynamic_link = FALSE;
1314 break;
1315 case 'u':
1316 ldlang_add_undef (optarg, TRUE);
1317 break;
1318 case OPTION_UNIQUE:
1319 if (optarg != NULL)
1320 lang_add_unique (optarg);
1321 else
1322 config.unique_orphan_sections = TRUE;
1323 break;
1324 case OPTION_VERBOSE:
1325 ldversion (1);
1326 version_printed = TRUE;
1327 trace_file_tries = TRUE;
1328 overflow_cutoff_limit = -2;
1329 break;
1330 case 'v':
1331 ldversion (0);
1332 version_printed = TRUE;
1333 break;
1334 case 'V':
1335 ldversion (1);
1336 version_printed = TRUE;
1337 break;
1338 case OPTION_VERSION:
1339 ldversion (2);
1340 xexit (0);
1341 break;
1342 case OPTION_VERSION_SCRIPT:
1343 /* This option indicates a small script that only specifies
1344 version information. Read it, but don't assume that
1345 we've seen a linker script. */
1346 {
1347 FILE *hold_script_handle;
1348
1349 hold_script_handle = saved_script_handle;
1350 ldfile_open_command_file (optarg);
1351 saved_script_handle = hold_script_handle;
1352 parser_input = input_version_script;
1353 yyparse ();
1354 }
1355 break;
1356 case OPTION_VERSION_EXPORTS_SECTION:
1357 /* This option records a version symbol to be applied to the
1358 symbols listed for export to be found in the object files
1359 .exports sections. */
1360 command_line.version_exports_section = optarg;
1361 break;
1362 case OPTION_DYNAMIC_LIST_DATA:
1363 command_line.dynamic_list = dynamic_list_data;
1364 if (command_line.symbolic == symbolic)
1365 command_line.symbolic = symbolic_unset;
1366 break;
1367 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1368 lang_append_dynamic_list_cpp_typeinfo ();
1369 if (command_line.dynamic_list != dynamic_list_data)
1370 command_line.dynamic_list = dynamic_list;
1371 if (command_line.symbolic == symbolic)
1372 command_line.symbolic = symbolic_unset;
1373 break;
1374 case OPTION_DYNAMIC_LIST_CPP_NEW:
1375 lang_append_dynamic_list_cpp_new ();
1376 if (command_line.dynamic_list != dynamic_list_data)
1377 command_line.dynamic_list = dynamic_list;
1378 if (command_line.symbolic == symbolic)
1379 command_line.symbolic = symbolic_unset;
1380 break;
1381 case OPTION_DYNAMIC_LIST:
1382 /* This option indicates a small script that only specifies
1383 a dynamic list. Read it, but don't assume that we've
1384 seen a linker script. */
1385 {
1386 FILE *hold_script_handle;
1387
1388 hold_script_handle = saved_script_handle;
1389 ldfile_open_command_file (optarg);
1390 saved_script_handle = hold_script_handle;
1391 parser_input = input_dynamic_list;
1392 yyparse ();
1393 }
1394 if (command_line.dynamic_list != dynamic_list_data)
1395 command_line.dynamic_list = dynamic_list;
1396 if (command_line.symbolic == symbolic)
1397 command_line.symbolic = symbolic_unset;
1398 break;
1399 case OPTION_WARN_COMMON:
1400 config.warn_common = TRUE;
1401 break;
1402 case OPTION_WARN_CONSTRUCTORS:
1403 config.warn_constructors = TRUE;
1404 break;
1405 case OPTION_WARN_FATAL:
1406 config.fatal_warnings = TRUE;
1407 break;
1408 case OPTION_NO_WARN_FATAL:
1409 config.fatal_warnings = FALSE;
1410 break;
1411 case OPTION_WARN_MULTIPLE_GP:
1412 config.warn_multiple_gp = TRUE;
1413 break;
1414 case OPTION_WARN_ONCE:
1415 config.warn_once = TRUE;
1416 break;
1417 case OPTION_WARN_SECTION_ALIGN:
1418 config.warn_section_align = TRUE;
1419 break;
1420 case OPTION_WARN_SHARED_TEXTREL:
1421 link_info.warn_shared_textrel = TRUE;
1422 break;
1423 case OPTION_WARN_ALTERNATE_EM:
1424 link_info.warn_alternate_em = TRUE;
1425 break;
1426 case OPTION_WHOLE_ARCHIVE:
1427 whole_archive = TRUE;
1428 break;
1429 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC:
1430 add_DT_NEEDED_for_dynamic = TRUE;
1431 break;
1432 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC:
1433 add_DT_NEEDED_for_dynamic = FALSE;
1434 break;
1435 case OPTION_ADD_DT_NEEDED_FOR_REGULAR:
1436 add_DT_NEEDED_for_regular = TRUE;
1437 break;
1438 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR:
1439 add_DT_NEEDED_for_regular = FALSE;
1440 break;
1441 case OPTION_WRAP:
1442 add_wrap (optarg);
1443 break;
1444 case OPTION_DISCARD_NONE:
1445 link_info.discard = discard_none;
1446 break;
1447 case 'X':
1448 link_info.discard = discard_l;
1449 break;
1450 case 'x':
1451 link_info.discard = discard_all;
1452 break;
1453 case 'Y':
1454 if (CONST_STRNEQ (optarg, "P,"))
1455 optarg += 2;
1456 if (default_dirlist != NULL)
1457 free (default_dirlist);
1458 default_dirlist = xstrdup (optarg);
1459 break;
1460 case 'y':
1461 add_ysym (optarg);
1462 break;
1463 case OPTION_SPARE_DYNAMIC_TAGS:
1464 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1465 break;
1466 case OPTION_SPLIT_BY_RELOC:
1467 if (optarg != NULL)
1468 config.split_by_reloc = strtoul (optarg, NULL, 0);
1469 else
1470 config.split_by_reloc = 32768;
1471 break;
1472 case OPTION_SPLIT_BY_FILE:
1473 if (optarg != NULL)
1474 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1475 else
1476 config.split_by_file = 1;
1477 break;
1478 case OPTION_CHECK_SECTIONS:
1479 command_line.check_section_addresses = 1;
1480 break;
1481 case OPTION_NO_CHECK_SECTIONS:
1482 command_line.check_section_addresses = 0;
1483 break;
1484 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1485 command_line.accept_unknown_input_arch = TRUE;
1486 break;
1487 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1488 command_line.accept_unknown_input_arch = FALSE;
1489 break;
1490 case '(':
1491 lang_enter_group ();
1492 ingroup++;
1493 break;
1494 case ')':
1495 if (! ingroup)
1496 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1497
1498 lang_leave_group ();
1499 ingroup--;
1500 break;
1501
1502 case OPTION_INIT:
1503 link_info.init_function = optarg;
1504 break;
1505
1506 case OPTION_FINI:
1507 link_info.fini_function = optarg;
1508 break;
1509
1510 case OPTION_REDUCE_MEMORY_OVERHEADS:
1511 link_info.reduce_memory_overheads = TRUE;
1512 if (config.hash_table_size == 0)
1513 config.hash_table_size = 1021;
1514 break;
1515
1516 case OPTION_HASH_SIZE:
1517 {
1518 bfd_size_type new_size;
1519
1520 new_size = strtoul (optarg, NULL, 0);
1521 if (new_size)
1522 config.hash_table_size = new_size;
1523 else
1524 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1525 }
1526 break;
1527 }
1528 }
1529
1530 while (ingroup)
1531 {
1532 lang_leave_group ();
1533 ingroup--;
1534 }
1535
1536 if (default_dirlist != NULL)
1537 {
1538 set_default_dirlist (default_dirlist);
1539 free (default_dirlist);
1540 }
1541
1542 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1543 /* FIXME: Should we allow emulations a chance to set this ? */
1544 link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1545
1546 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1547 /* FIXME: Should we allow emulations a chance to set this ? */
1548 link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1549
1550 #ifdef ENABLE_PLUGINS
1551 /* Now all the plugin arguments have been gathered, we can load them. */
1552 if (plugin_load_plugins ())
1553 einfo (_("%P%F: %s: error loading plugin\n"), plugin_error_plugin ());
1554 #endif /* ENABLE_PLUGINS */
1555 }
1556
1557 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1558 library search path. */
1559
1560 static void
1561 set_default_dirlist (char *dirlist_ptr)
1562 {
1563 char *p;
1564
1565 while (1)
1566 {
1567 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1568 if (p != NULL)
1569 *p = '\0';
1570 if (*dirlist_ptr != '\0')
1571 ldfile_add_library_path (dirlist_ptr, TRUE);
1572 if (p == NULL)
1573 break;
1574 dirlist_ptr = p + 1;
1575 }
1576 }
1577
1578 static void
1579 set_section_start (char *sect, char *valstr)
1580 {
1581 const char *end;
1582 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1583 if (*end)
1584 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1585 lang_section_start (sect, exp_intop (val), NULL);
1586 }
1587
1588 static void
1589 set_segment_start (const char *section, char *valstr)
1590 {
1591 const char *name;
1592 const char *end;
1593 segment_type *seg;
1594
1595 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1596 if (*end)
1597 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1598 /* If we already have an entry for this segment, update the existing
1599 value. */
1600 name = section + 1;
1601 for (seg = segments; seg; seg = seg->next)
1602 if (strcmp (seg->name, name) == 0)
1603 {
1604 seg->value = val;
1605 return;
1606 }
1607 /* There was no existing value so we must create a new segment
1608 entry. */
1609 seg = (segment_type *) stat_alloc (sizeof (*seg));
1610 seg->name = name;
1611 seg->value = val;
1612 seg->used = FALSE;
1613 /* Add it to the linked list of segments. */
1614 seg->next = segments;
1615 segments = seg;
1616 /* Historically, -Ttext and friends set the base address of a
1617 particular section. For backwards compatibility, we still do
1618 that. If a SEGMENT_START directive is seen, the section address
1619 assignment will be disabled. */
1620 lang_section_start (section, exp_intop (val), seg);
1621 }
1622
1623 \f
1624 /* Print help messages for the options. */
1625
1626 static void
1627 help (void)
1628 {
1629 unsigned i;
1630 const char **targets, **pp;
1631 int len;
1632
1633 printf (_("Usage: %s [options] file...\n"), program_name);
1634
1635 printf (_("Options:\n"));
1636 for (i = 0; i < OPTION_COUNT; i++)
1637 {
1638 if (ld_options[i].doc != NULL)
1639 {
1640 bfd_boolean comma;
1641 unsigned j;
1642
1643 printf (" ");
1644
1645 comma = FALSE;
1646 len = 2;
1647
1648 j = i;
1649 do
1650 {
1651 if (ld_options[j].shortopt != '\0'
1652 && ld_options[j].control != NO_HELP)
1653 {
1654 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1655 len += (comma ? 2 : 0) + 2;
1656 if (ld_options[j].arg != NULL)
1657 {
1658 if (ld_options[j].opt.has_arg != optional_argument)
1659 {
1660 printf (" ");
1661 ++len;
1662 }
1663 printf ("%s", _(ld_options[j].arg));
1664 len += strlen (_(ld_options[j].arg));
1665 }
1666 comma = TRUE;
1667 }
1668 ++j;
1669 }
1670 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1671
1672 j = i;
1673 do
1674 {
1675 if (ld_options[j].opt.name != NULL
1676 && ld_options[j].control != NO_HELP)
1677 {
1678 int two_dashes =
1679 (ld_options[j].control == TWO_DASHES
1680 || ld_options[j].control == EXACTLY_TWO_DASHES);
1681
1682 printf ("%s-%s%s",
1683 comma ? ", " : "",
1684 two_dashes ? "-" : "",
1685 ld_options[j].opt.name);
1686 len += ((comma ? 2 : 0)
1687 + 1
1688 + (two_dashes ? 1 : 0)
1689 + strlen (ld_options[j].opt.name));
1690 if (ld_options[j].arg != NULL)
1691 {
1692 printf (" %s", _(ld_options[j].arg));
1693 len += 1 + strlen (_(ld_options[j].arg));
1694 }
1695 comma = TRUE;
1696 }
1697 ++j;
1698 }
1699 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1700
1701 if (len >= 30)
1702 {
1703 printf ("\n");
1704 len = 0;
1705 }
1706
1707 for (; len < 30; len++)
1708 putchar (' ');
1709
1710 printf ("%s\n", _(ld_options[i].doc));
1711 }
1712 }
1713 printf (_(" @FILE"));
1714 for (len = strlen (" @FILE"); len < 30; len++)
1715 putchar (' ');
1716 printf (_("Read options from FILE\n"));
1717
1718 /* Note: Various tools (such as libtool) depend upon the
1719 format of the listings below - do not change them. */
1720 /* xgettext:c-format */
1721 printf (_("%s: supported targets:"), program_name);
1722 targets = bfd_target_list ();
1723 for (pp = targets; *pp != NULL; pp++)
1724 printf (" %s", *pp);
1725 free (targets);
1726 printf ("\n");
1727
1728 /* xgettext:c-format */
1729 printf (_("%s: supported emulations: "), program_name);
1730 ldemul_list_emulations (stdout);
1731 printf ("\n");
1732
1733 /* xgettext:c-format */
1734 printf (_("%s: emulation specific options:\n"), program_name);
1735 ldemul_list_emulation_options (stdout);
1736 printf ("\n");
1737
1738 if (REPORT_BUGS_TO[0])
1739 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
1740 }
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