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* prdbg.c (pr_function_type): Close memory leaks.
[binutils.git] / ld / lexsup.c
blob4f6a77becca19af80bf1f808c4e56257c6c6477a
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", optional_argument, NULL, OPTION_VERBOSE},
564 '\0', N_("[=NUMBER]"),
565 N_("Output lots of information during link"), TWO_DASHES },
566 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
567 '\0', NULL, NULL, NO_HELP },
568 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
569 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
570 { {"version-exports-section", required_argument, NULL,
571 OPTION_VERSION_EXPORTS_SECTION },
572 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
573 " SYMBOL as the version."),
574 TWO_DASHES },
575 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
576 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
577 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
578 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
579 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
580 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
581 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
582 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
583 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
584 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
585 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
586 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
587 TWO_DASHES },
588 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
589 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
590 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
591 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
592 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
593 '\0', NULL, N_("Warn if start of section changes due to alignment"),
594 TWO_DASHES },
595 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
596 '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
597 TWO_DASHES },
598 { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
599 '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
600 TWO_DASHES },
601 { {"warn-unresolved-symbols", no_argument, NULL,
602 OPTION_WARN_UNRESOLVED_SYMBOLS},
603 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
604 { {"error-unresolved-symbols", no_argument, NULL,
605 OPTION_ERROR_UNRESOLVED_SYMBOLS},
606 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
607 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
608 '\0', NULL, N_("Include all objects from following archives"),
609 TWO_DASHES },
610 { {"wrap", required_argument, NULL, OPTION_WRAP},
611 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
612 };
613
614 #define OPTION_COUNT ARRAY_SIZE (ld_options)
615
616 void
617 parse_args (unsigned argc, char **argv)
618 {
619 unsigned i;
620 int is, il, irl;
621 int ingroup = 0;
622 char *default_dirlist = NULL;
623 char *shortopts;
624 struct option *longopts;
625 struct option *really_longopts;
626 int last_optind;
627 enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
628
629 shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2);
630 longopts = (struct option *)
631 xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
632 really_longopts = (struct option *)
633 malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
634
635 /* Starting the short option string with '-' is for programs that
636 expect options and other ARGV-elements in any order and that care about
637 the ordering of the two. We describe each non-option ARGV-element
638 as if it were the argument of an option with character code 1. */
639 shortopts[0] = '-';
640 is = 1;
641 il = 0;
642 irl = 0;
643 for (i = 0; i < OPTION_COUNT; i++)
644 {
645 if (ld_options[i].shortopt != '\0')
646 {
647 shortopts[is] = ld_options[i].shortopt;
648 ++is;
649 if (ld_options[i].opt.has_arg == required_argument
650 || ld_options[i].opt.has_arg == optional_argument)
651 {
652 shortopts[is] = ':';
653 ++is;
654 if (ld_options[i].opt.has_arg == optional_argument)
655 {
656 shortopts[is] = ':';
657 ++is;
658 }
659 }
660 }
661 if (ld_options[i].opt.name != NULL)
662 {
663 if (ld_options[i].control == EXACTLY_TWO_DASHES)
664 {
665 really_longopts[irl] = ld_options[i].opt;
666 ++irl;
667 }
668 else
669 {
670 longopts[il] = ld_options[i].opt;
671 ++il;
672 }
673 }
674 }
675 shortopts[is] = '\0';
676 longopts[il].name = NULL;
677 really_longopts[irl].name = NULL;
678
679 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
680
681 /* The -G option is ambiguous on different platforms. Sometimes it
682 specifies the largest data size to put into the small data
683 section. Sometimes it is equivalent to --shared. Unfortunately,
684 the first form takes an argument, while the second does not.
685
686 We need to permit the --shared form because on some platforms,
687 such as Solaris, gcc -shared will pass -G to the linker.
688
689 To permit either usage, we look through the argument list. If we
690 find -G not followed by a number, we change it into --shared.
691 This will work for most normal cases. */
692 for (i = 1; i < argc; i++)
693 if (strcmp (argv[i], "-G") == 0
694 && (i + 1 >= argc
695 || ! ISDIGIT (argv[i + 1][0])))
696 argv[i] = (char *) "--shared";
697
698 /* Because we permit long options to start with a single dash, and
699 we have a --library option, and the -l option is conventionally
700 used with an immediately following argument, we can have bad
701 results if somebody tries to use -l with a library whose name
702 happens to start with "ibrary", as in -li. We avoid problems by
703 simply turning -l into --library. This means that users will
704 have to use two dashes in order to use --library, which is OK
705 since that's how it is documented.
706
707 FIXME: It's possible that this problem can arise for other short
708 options as well, although the user does always have the recourse
709 of adding a space between the option and the argument. */
710 for (i = 1; i < argc; i++)
711 {
712 if (argv[i][0] == '-'
713 && argv[i][1] == 'l'
714 && argv[i][2] != '\0')
715 {
716 char *n;
717
718 n = (char *) xmalloc (strlen (argv[i]) + 20);
719 sprintf (n, "--library=%s", argv[i] + 2);
720 argv[i] = n;
721 }
722 }
723
724 last_optind = -1;
725 while (1)
726 {
727 int longind;
728 int optc;
729
730 /* Using last_optind lets us avoid calling ldemul_parse_args
731 multiple times on a single option, which would lead to
732 confusion in the internal static variables maintained by
733 getopt. This could otherwise happen for an argument like
734 -nx, in which the -n is parsed as a single option, and we
735 loop around to pick up the -x. */
736 if (optind != last_optind)
737 if (ldemul_parse_args (argc, argv))
738 continue;
739
740 /* getopt_long_only is like getopt_long, but '-' as well as '--'
741 can indicate a long option. */
742 opterr = 0;
743 last_optind = optind;
744 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
745 if (optc == '?')
746 {
747 optind = last_optind;
748 optc = getopt_long (argc, argv, "-", really_longopts, &longind);
749 }
750
751 if (ldemul_handle_option (optc))
752 continue;
753
754 if (optc == -1)
755 break;
756
757 switch (optc)
758 {
759 case '?':
760 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
761 /* Fall through. */
762
763 default:
764 einfo (_("%P%F: use the --help option for usage information\n"));
765
766 case 1: /* File name. */
767 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
768 break;
769
770 case OPTION_IGNORE:
771 break;
772 case 'a':
773 /* For HP/UX compatibility. Actually -a shared should mean
774 ``use only shared libraries'' but, then, we don't
775 currently support shared libraries on HP/UX anyhow. */
776 if (strcmp (optarg, "archive") == 0)
777 config.dynamic_link = FALSE;
778 else if (strcmp (optarg, "shared") == 0
779 || strcmp (optarg, "default") == 0)
780 config.dynamic_link = TRUE;
781 else
782 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
783 break;
784 case OPTION_ASSERT:
785 /* FIXME: We just ignore these, but we should handle them. */
786 if (strcmp (optarg, "definitions") == 0)
787 ;
788 else if (strcmp (optarg, "nodefinitions") == 0)
789 ;
790 else if (strcmp (optarg, "nosymbolic") == 0)
791 ;
792 else if (strcmp (optarg, "pure-text") == 0)
793 ;
794 else
795 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
796 break;
797 case 'A':
798 ldfile_add_arch (optarg);
799 break;
800 case 'b':
801 lang_add_target (optarg);
802 break;
803 case 'c':
804 ldfile_open_command_file (optarg);
805 parser_input = input_mri_script;
806 yyparse ();
807 break;
808 case OPTION_CALL_SHARED:
809 config.dynamic_link = TRUE;
810 break;
811 case OPTION_NON_SHARED:
812 config.dynamic_link = FALSE;
813 break;
814 case OPTION_CREF:
815 command_line.cref = TRUE;
816 link_info.notice_all = TRUE;
817 break;
818 case 'd':
819 command_line.force_common_definition = TRUE;
820 break;
821 case OPTION_DEFSYM:
822 lex_string = optarg;
823 lex_redirect (optarg);
824 parser_input = input_defsym;
825 parsing_defsym = 1;
826 yyparse ();
827 parsing_defsym = 0;
828 lex_string = NULL;
829 break;
830 case OPTION_DEMANGLE:
831 demangling = TRUE;
832 if (optarg != NULL)
833 {
834 enum demangling_styles style;
835
836 style = cplus_demangle_name_to_style (optarg);
837 if (style == unknown_demangling)
838 einfo (_("%F%P: unknown demangling style `%s'"),
839 optarg);
840
841 cplus_demangle_set_style (style);
842 }
843 break;
844 case 'I': /* Used on Solaris. */
845 case OPTION_DYNAMIC_LINKER:
846 command_line.interpreter = optarg;
847 break;
848 case OPTION_SYSROOT:
849 /* Already handled in ldmain.c. */
850 break;
851 case OPTION_EB:
852 command_line.endian = ENDIAN_BIG;
853 break;
854 case OPTION_EL:
855 command_line.endian = ENDIAN_LITTLE;
856 break;
857 case OPTION_EMBEDDED_RELOCS:
858 command_line.embedded_relocs = TRUE;
859 break;
860 case OPTION_EXPORT_DYNAMIC:
861 case 'E': /* HP/UX compatibility. */
862 link_info.export_dynamic = TRUE;
863 break;
864 case OPTION_NO_EXPORT_DYNAMIC:
865 link_info.export_dynamic = FALSE;
866 break;
867 case 'e':
868 lang_add_entry (optarg, TRUE);
869 break;
870 case 'f':
871 if (command_line.auxiliary_filters == NULL)
872 {
873 command_line.auxiliary_filters = (char **)
874 xmalloc (2 * sizeof (char *));
875 command_line.auxiliary_filters[0] = optarg;
876 command_line.auxiliary_filters[1] = NULL;
877 }
878 else
879 {
880 int c;
881 char **p;
882
883 c = 0;
884 for (p = command_line.auxiliary_filters; *p != NULL; p++)
885 ++c;
886 command_line.auxiliary_filters = (char **)
887 xrealloc (command_line.auxiliary_filters,
888 (c + 2) * sizeof (char *));
889 command_line.auxiliary_filters[c] = optarg;
890 command_line.auxiliary_filters[c + 1] = NULL;
891 }
892 break;
893 case 'F':
894 command_line.filter_shlib = optarg;
895 break;
896 case OPTION_FORCE_EXE_SUFFIX:
897 command_line.force_exe_suffix = TRUE;
898 break;
899 case 'G':
900 {
901 char *end;
902 g_switch_value = strtoul (optarg, &end, 0);
903 if (*end)
904 einfo (_("%P%F: invalid number `%s'\n"), optarg);
905 }
906 break;
907 case 'g':
908 /* Ignore. */
909 break;
910 case OPTION_GC_SECTIONS:
911 link_info.gc_sections = TRUE;
912 break;
913 case OPTION_PRINT_GC_SECTIONS:
914 link_info.print_gc_sections = TRUE;
915 break;
916 case OPTION_HELP:
917 help ();
918 xexit (0);
919 break;
920 case 'L':
921 ldfile_add_library_path (optarg, TRUE);
922 break;
923 case 'l':
924 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
925 break;
926 case 'M':
927 config.map_filename = "-";
928 break;
929 case 'm':
930 /* Ignore. Was handled in a pre-parse. */
931 break;
932 case OPTION_MAP:
933 config.map_filename = optarg;
934 break;
935 case 'N':
936 config.text_read_only = FALSE;
937 config.magic_demand_paged = FALSE;
938 config.dynamic_link = FALSE;
939 break;
940 case OPTION_NO_OMAGIC:
941 config.text_read_only = TRUE;
942 config.magic_demand_paged = TRUE;
943 /* NB/ Does not set dynamic_link to TRUE.
944 Use --call-shared or -Bdynamic for this. */
945 break;
946 case 'n':
947 config.magic_demand_paged = FALSE;
948 config.dynamic_link = FALSE;
949 break;
950 case OPTION_NO_DEFINE_COMMON:
951 command_line.inhibit_common_definition = TRUE;
952 break;
953 case OPTION_NO_DEMANGLE:
954 demangling = FALSE;
955 break;
956 case OPTION_NO_GC_SECTIONS:
957 link_info.gc_sections = FALSE;
958 break;
959 case OPTION_NO_PRINT_GC_SECTIONS:
960 link_info.print_gc_sections = FALSE;
961 break;
962 case OPTION_NO_KEEP_MEMORY:
963 link_info.keep_memory = FALSE;
964 break;
965 case OPTION_NO_UNDEFINED:
966 link_info.unresolved_syms_in_objects
967 = how_to_report_unresolved_symbols;
968 break;
969 case OPTION_ALLOW_SHLIB_UNDEFINED:
970 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
971 break;
972 case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
973 link_info.unresolved_syms_in_shared_libs
974 = how_to_report_unresolved_symbols;
975 break;
976 case OPTION_UNRESOLVED_SYMBOLS:
977 if (strcmp (optarg, "ignore-all") == 0)
978 {
979 link_info.unresolved_syms_in_objects = RM_IGNORE;
980 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
981 }
982 else if (strcmp (optarg, "report-all") == 0)
983 {
984 link_info.unresolved_syms_in_objects
985 = how_to_report_unresolved_symbols;
986 link_info.unresolved_syms_in_shared_libs
987 = how_to_report_unresolved_symbols;
988 }
989 else if (strcmp (optarg, "ignore-in-object-files") == 0)
990 {
991 link_info.unresolved_syms_in_objects = RM_IGNORE;
992 link_info.unresolved_syms_in_shared_libs
993 = how_to_report_unresolved_symbols;
994 }
995 else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
996 {
997 link_info.unresolved_syms_in_objects
998 = how_to_report_unresolved_symbols;
999 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1000 }
1001 else
1002 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
1003 break;
1004 case OPTION_WARN_UNRESOLVED_SYMBOLS:
1005 how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
1006 if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
1007 link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
1008 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
1009 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
1010 break;
1011
1012 case OPTION_ERROR_UNRESOLVED_SYMBOLS:
1013 how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
1014 if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
1015 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
1016 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
1017 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
1018 break;
1019 case OPTION_ALLOW_MULTIPLE_DEFINITION:
1020 link_info.allow_multiple_definition = TRUE;
1021 break;
1022 case OPTION_NO_UNDEFINED_VERSION:
1023 link_info.allow_undefined_version = FALSE;
1024 break;
1025 case OPTION_DEFAULT_SYMVER:
1026 link_info.create_default_symver = TRUE;
1027 break;
1028 case OPTION_DEFAULT_IMPORTED_SYMVER:
1029 link_info.default_imported_symver = TRUE;
1030 break;
1031 case OPTION_NO_WARN_MISMATCH:
1032 command_line.warn_mismatch = FALSE;
1033 break;
1034 case OPTION_NO_WARN_SEARCH_MISMATCH:
1035 command_line.warn_search_mismatch = FALSE;
1036 break;
1037 case OPTION_NOINHIBIT_EXEC:
1038 force_make_executable = TRUE;
1039 break;
1040 case OPTION_NOSTDLIB:
1041 config.only_cmd_line_lib_dirs = TRUE;
1042 break;
1043 case OPTION_NO_WHOLE_ARCHIVE:
1044 whole_archive = FALSE;
1045 break;
1046 case 'O':
1047 /* FIXME "-O<non-digits> <value>" used to set the address of
1048 section <non-digits>. Was this for compatibility with
1049 something, or can we create a new option to do that
1050 (with a syntax similar to -defsym)?
1051 getopt can't handle two args to an option without kludges. */
1052
1053 /* Enable optimizations of output files. */
1054 link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
1055 break;
1056 case 'o':
1057 lang_add_output (optarg, 0);
1058 break;
1059 case OPTION_OFORMAT:
1060 lang_add_output_format (optarg, NULL, NULL, 0);
1061 break;
1062 #ifdef ENABLE_PLUGINS
1063 case OPTION_PLUGIN:
1064 if (plugin_opt_plugin (optarg))
1065 einfo (_("%P%F: %s: error loading plugin\n"),
1066 plugin_error_plugin ());
1067 break;
1068 case OPTION_PLUGIN_OPT:
1069 if (plugin_opt_plugin_arg (optarg))
1070 einfo(_("%P%F: bad -plugin-opt option\n"));
1071 break;
1072 #endif /* ENABLE_PLUGINS */
1073 case 'q':
1074 link_info.emitrelocations = TRUE;
1075 break;
1076 case 'i':
1077 case 'r':
1078 if (optind == last_optind)
1079 /* This can happen if the user put "-rpath,a" on the command
1080 line. (Or something similar. The comma is important).
1081 Getopt becomes confused and thinks that this is a -r option
1082 but it cannot parse the text after the -r so it refuses to
1083 increment the optind counter. Detect this case and issue
1084 an error message here. We cannot just make this a warning,
1085 increment optind, and continue because getopt is too confused
1086 and will seg-fault the next time around. */
1087 einfo(_("%P%F: bad -rpath option\n"));
1088
1089 link_info.relocatable = TRUE;
1090 config.build_constructors = FALSE;
1091 config.magic_demand_paged = FALSE;
1092 config.text_read_only = FALSE;
1093 config.dynamic_link = FALSE;
1094 break;
1095 case 'R':
1096 /* The GNU linker traditionally uses -R to mean to include
1097 only the symbols from a file. The Solaris linker uses -R
1098 to set the path used by the runtime linker to find
1099 libraries. This is the GNU linker -rpath argument. We
1100 try to support both simultaneously by checking the file
1101 named. If it is a directory, rather than a regular file,
1102 we assume -rpath was meant. */
1103 {
1104 struct stat s;
1105
1106 if (stat (optarg, &s) >= 0
1107 && ! S_ISDIR (s.st_mode))
1108 {
1109 lang_add_input_file (optarg,
1110 lang_input_file_is_symbols_only_enum,
1111 NULL);
1112 break;
1113 }
1114 }
1115 /* Fall through. */
1116 case OPTION_RPATH:
1117 if (command_line.rpath == NULL)
1118 command_line.rpath = xstrdup (optarg);
1119 else
1120 {
1121 size_t rpath_len = strlen (command_line.rpath);
1122 size_t optarg_len = strlen (optarg);
1123 char *buf;
1124 char *cp = command_line.rpath;
1125
1126 /* First see whether OPTARG is already in the path. */
1127 do
1128 {
1129 if (strncmp (optarg, cp, optarg_len) == 0
1130 && (cp[optarg_len] == 0
1131 || cp[optarg_len] == config.rpath_separator))
1132 /* We found it. */
1133 break;
1134
1135 /* Not yet found. */
1136 cp = strchr (cp, config.rpath_separator);
1137 if (cp != NULL)
1138 ++cp;
1139 }
1140 while (cp != NULL);
1141
1142 if (cp == NULL)
1143 {
1144 buf = (char *) xmalloc (rpath_len + optarg_len + 2);
1145 sprintf (buf, "%s%c%s", command_line.rpath,
1146 config.rpath_separator, optarg);
1147 free (command_line.rpath);
1148 command_line.rpath = buf;
1149 }
1150 }
1151 break;
1152 case OPTION_RPATH_LINK:
1153 if (command_line.rpath_link == NULL)
1154 command_line.rpath_link = xstrdup (optarg);
1155 else
1156 {
1157 char *buf;
1158
1159 buf = (char *) xmalloc (strlen (command_line.rpath_link)
1160 + strlen (optarg)
1161 + 2);
1162 sprintf (buf, "%s%c%s", command_line.rpath_link,
1163 config.rpath_separator, optarg);
1164 free (command_line.rpath_link);
1165 command_line.rpath_link = buf;
1166 }
1167 break;
1168 case OPTION_NO_RELAX:
1169 DISABLE_RELAXATION;
1170 break;
1171 case OPTION_RELAX:
1172 ENABLE_RELAXATION;
1173 break;
1174 case OPTION_RETAIN_SYMBOLS_FILE:
1175 add_keepsyms_file (optarg);
1176 break;
1177 case 'S':
1178 link_info.strip = strip_debugger;
1179 break;
1180 case 's':
1181 link_info.strip = strip_all;
1182 break;
1183 case OPTION_STRIP_DISCARDED:
1184 link_info.strip_discarded = TRUE;
1185 break;
1186 case OPTION_NO_STRIP_DISCARDED:
1187 link_info.strip_discarded = FALSE;
1188 break;
1189 case OPTION_SHARED:
1190 if (config.has_shared)
1191 {
1192 link_info.shared = TRUE;
1193 /* When creating a shared library, the default
1194 behaviour is to ignore any unresolved references. */
1195 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1196 link_info.unresolved_syms_in_objects = RM_IGNORE;
1197 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1198 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1199 }
1200 else
1201 einfo (_("%P%F: -shared not supported\n"));
1202 break;
1203 case OPTION_PIE:
1204 if (config.has_shared)
1205 {
1206 link_info.shared = TRUE;
1207 link_info.pie = TRUE;
1208 }
1209 else
1210 einfo (_("%P%F: -pie not supported\n"));
1211 break;
1212 case 'h': /* Used on Solaris. */
1213 case OPTION_SONAME:
1214 command_line.soname = optarg;
1215 break;
1216 case OPTION_SORT_COMMON:
1217 if (optarg == NULL
1218 || strcmp (optarg, N_("descending")) == 0)
1219 config.sort_common = sort_descending;
1220 else if (strcmp (optarg, N_("ascending")) == 0)
1221 config.sort_common = sort_ascending;
1222 else
1223 einfo (_("%P%F: invalid common section sorting option: %s\n"),
1224 optarg);
1225 break;
1226 case OPTION_SORT_SECTION:
1227 if (strcmp (optarg, N_("name")) == 0)
1228 sort_section = by_name;
1229 else if (strcmp (optarg, N_("alignment")) == 0)
1230 sort_section = by_alignment;
1231 else
1232 einfo (_("%P%F: invalid section sorting option: %s\n"),
1233 optarg);
1234 break;
1235 case OPTION_STATS:
1236 config.stats = TRUE;
1237 break;
1238 case OPTION_SYMBOLIC:
1239 command_line.symbolic = symbolic;
1240 break;
1241 case OPTION_SYMBOLIC_FUNCTIONS:
1242 command_line.symbolic = symbolic_functions;
1243 break;
1244 case 't':
1245 trace_files = TRUE;
1246 break;
1247 case 'T':
1248 previous_script_handle = saved_script_handle;
1249 ldfile_open_command_file (optarg);
1250 parser_input = input_script;
1251 yyparse ();
1252 previous_script_handle = NULL;
1253 break;
1254 case OPTION_DEFAULT_SCRIPT:
1255 command_line.default_script = optarg;
1256 break;
1257 case OPTION_SECTION_START:
1258 {
1259 char *optarg2;
1260 char *sec_name;
1261 int len;
1262
1263 /* Check for <something>=<somthing>... */
1264 optarg2 = strchr (optarg, '=');
1265 if (optarg2 == NULL)
1266 einfo (_("%P%F: invalid argument to option"
1267 " \"--section-start\"\n"));
1268
1269 optarg2++;
1270
1271 /* So far so good. Are all the args present? */
1272 if ((*optarg == '\0') || (*optarg2 == '\0'))
1273 einfo (_("%P%F: missing argument(s) to option"
1274 " \"--section-start\"\n"));
1275
1276 /* We must copy the section name as set_section_start
1277 doesn't do it for us. */
1278 len = optarg2 - optarg;
1279 sec_name = (char *) xmalloc (len);
1280 memcpy (sec_name, optarg, len - 1);
1281 sec_name[len - 1] = 0;
1282
1283 /* Then set it... */
1284 set_section_start (sec_name, optarg2);
1285 }
1286 break;
1287 case OPTION_TARGET_HELP:
1288 /* Mention any target specific options. */
1289 ldemul_list_emulation_options (stdout);
1290 exit (0);
1291 case OPTION_TBSS:
1292 set_segment_start (".bss", optarg);
1293 break;
1294 case OPTION_TDATA:
1295 set_segment_start (".data", optarg);
1296 break;
1297 case OPTION_TTEXT:
1298 set_segment_start (".text", optarg);
1299 break;
1300 case OPTION_TTEXT_SEGMENT:
1301 set_segment_start (".text-segment", optarg);
1302 break;
1303 case OPTION_TRADITIONAL_FORMAT:
1304 link_info.traditional_format = TRUE;
1305 break;
1306 case OPTION_TASK_LINK:
1307 link_info.task_link = TRUE;
1308 /* Fall through - do an implied -r option. */
1309 case OPTION_UR:
1310 link_info.relocatable = TRUE;
1311 config.build_constructors = TRUE;
1312 config.magic_demand_paged = FALSE;
1313 config.text_read_only = FALSE;
1314 config.dynamic_link = FALSE;
1315 break;
1316 case 'u':
1317 ldlang_add_undef (optarg, TRUE);
1318 break;
1319 case OPTION_UNIQUE:
1320 if (optarg != NULL)
1321 lang_add_unique (optarg);
1322 else
1323 config.unique_orphan_sections = TRUE;
1324 break;
1325 case OPTION_VERBOSE:
1326 ldversion (1);
1327 version_printed = TRUE;
1328 trace_file_tries = TRUE;
1329 overflow_cutoff_limit = -2;
1330 if (optarg != NULL)
1331 {
1332 char *end;
1333 int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0);
1334 if (*end)
1335 einfo (_("%P%F: invalid number `%s'\n"), optarg);
1336 #ifdef ENABLE_PLUGINS
1337 report_plugin_symbols = level > 1;
1338 #endif /* ENABLE_PLUGINS */
1339 }
1340 break;
1341 case 'v':
1342 ldversion (0);
1343 version_printed = TRUE;
1344 break;
1345 case 'V':
1346 ldversion (1);
1347 version_printed = TRUE;
1348 break;
1349 case OPTION_VERSION:
1350 ldversion (2);
1351 xexit (0);
1352 break;
1353 case OPTION_VERSION_SCRIPT:
1354 /* This option indicates a small script that only specifies
1355 version information. Read it, but don't assume that
1356 we've seen a linker script. */
1357 {
1358 FILE *hold_script_handle;
1359
1360 hold_script_handle = saved_script_handle;
1361 ldfile_open_command_file (optarg);
1362 saved_script_handle = hold_script_handle;
1363 parser_input = input_version_script;
1364 yyparse ();
1365 }
1366 break;
1367 case OPTION_VERSION_EXPORTS_SECTION:
1368 /* This option records a version symbol to be applied to the
1369 symbols listed for export to be found in the object files
1370 .exports sections. */
1371 command_line.version_exports_section = optarg;
1372 break;
1373 case OPTION_DYNAMIC_LIST_DATA:
1374 command_line.dynamic_list = dynamic_list_data;
1375 if (command_line.symbolic == symbolic)
1376 command_line.symbolic = symbolic_unset;
1377 break;
1378 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1379 lang_append_dynamic_list_cpp_typeinfo ();
1380 if (command_line.dynamic_list != dynamic_list_data)
1381 command_line.dynamic_list = dynamic_list;
1382 if (command_line.symbolic == symbolic)
1383 command_line.symbolic = symbolic_unset;
1384 break;
1385 case OPTION_DYNAMIC_LIST_CPP_NEW:
1386 lang_append_dynamic_list_cpp_new ();
1387 if (command_line.dynamic_list != dynamic_list_data)
1388 command_line.dynamic_list = dynamic_list;
1389 if (command_line.symbolic == symbolic)
1390 command_line.symbolic = symbolic_unset;
1391 break;
1392 case OPTION_DYNAMIC_LIST:
1393 /* This option indicates a small script that only specifies
1394 a dynamic list. Read it, but don't assume that we've
1395 seen a linker script. */
1396 {
1397 FILE *hold_script_handle;
1398
1399 hold_script_handle = saved_script_handle;
1400 ldfile_open_command_file (optarg);
1401 saved_script_handle = hold_script_handle;
1402 parser_input = input_dynamic_list;
1403 yyparse ();
1404 }
1405 if (command_line.dynamic_list != dynamic_list_data)
1406 command_line.dynamic_list = dynamic_list;
1407 if (command_line.symbolic == symbolic)
1408 command_line.symbolic = symbolic_unset;
1409 break;
1410 case OPTION_WARN_COMMON:
1411 config.warn_common = TRUE;
1412 break;
1413 case OPTION_WARN_CONSTRUCTORS:
1414 config.warn_constructors = TRUE;
1415 break;
1416 case OPTION_WARN_FATAL:
1417 config.fatal_warnings = TRUE;
1418 break;
1419 case OPTION_NO_WARN_FATAL:
1420 config.fatal_warnings = FALSE;
1421 break;
1422 case OPTION_WARN_MULTIPLE_GP:
1423 config.warn_multiple_gp = TRUE;
1424 break;
1425 case OPTION_WARN_ONCE:
1426 config.warn_once = TRUE;
1427 break;
1428 case OPTION_WARN_SECTION_ALIGN:
1429 config.warn_section_align = TRUE;
1430 break;
1431 case OPTION_WARN_SHARED_TEXTREL:
1432 link_info.warn_shared_textrel = TRUE;
1433 break;
1434 case OPTION_WARN_ALTERNATE_EM:
1435 link_info.warn_alternate_em = TRUE;
1436 break;
1437 case OPTION_WHOLE_ARCHIVE:
1438 whole_archive = TRUE;
1439 break;
1440 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC:
1441 add_DT_NEEDED_for_dynamic = TRUE;
1442 break;
1443 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC:
1444 add_DT_NEEDED_for_dynamic = FALSE;
1445 break;
1446 case OPTION_ADD_DT_NEEDED_FOR_REGULAR:
1447 add_DT_NEEDED_for_regular = TRUE;
1448 break;
1449 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR:
1450 add_DT_NEEDED_for_regular = FALSE;
1451 break;
1452 case OPTION_WRAP:
1453 add_wrap (optarg);
1454 break;
1455 case OPTION_DISCARD_NONE:
1456 link_info.discard = discard_none;
1457 break;
1458 case 'X':
1459 link_info.discard = discard_l;
1460 break;
1461 case 'x':
1462 link_info.discard = discard_all;
1463 break;
1464 case 'Y':
1465 if (CONST_STRNEQ (optarg, "P,"))
1466 optarg += 2;
1467 if (default_dirlist != NULL)
1468 free (default_dirlist);
1469 default_dirlist = xstrdup (optarg);
1470 break;
1471 case 'y':
1472 add_ysym (optarg);
1473 break;
1474 case OPTION_SPARE_DYNAMIC_TAGS:
1475 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1476 break;
1477 case OPTION_SPLIT_BY_RELOC:
1478 if (optarg != NULL)
1479 config.split_by_reloc = strtoul (optarg, NULL, 0);
1480 else
1481 config.split_by_reloc = 32768;
1482 break;
1483 case OPTION_SPLIT_BY_FILE:
1484 if (optarg != NULL)
1485 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1486 else
1487 config.split_by_file = 1;
1488 break;
1489 case OPTION_CHECK_SECTIONS:
1490 command_line.check_section_addresses = 1;
1491 break;
1492 case OPTION_NO_CHECK_SECTIONS:
1493 command_line.check_section_addresses = 0;
1494 break;
1495 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1496 command_line.accept_unknown_input_arch = TRUE;
1497 break;
1498 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1499 command_line.accept_unknown_input_arch = FALSE;
1500 break;
1501 case '(':
1502 lang_enter_group ();
1503 ingroup++;
1504 break;
1505 case ')':
1506 if (! ingroup)
1507 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1508
1509 lang_leave_group ();
1510 ingroup--;
1511 break;
1512
1513 case OPTION_INIT:
1514 link_info.init_function = optarg;
1515 break;
1516
1517 case OPTION_FINI:
1518 link_info.fini_function = optarg;
1519 break;
1520
1521 case OPTION_REDUCE_MEMORY_OVERHEADS:
1522 link_info.reduce_memory_overheads = TRUE;
1523 if (config.hash_table_size == 0)
1524 config.hash_table_size = 1021;
1525 break;
1526
1527 case OPTION_HASH_SIZE:
1528 {
1529 bfd_size_type new_size;
1530
1531 new_size = strtoul (optarg, NULL, 0);
1532 if (new_size)
1533 config.hash_table_size = new_size;
1534 else
1535 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1536 }
1537 break;
1538 }
1539 }
1540
1541 while (ingroup)
1542 {
1543 lang_leave_group ();
1544 ingroup--;
1545 }
1546
1547 if (default_dirlist != NULL)
1548 {
1549 set_default_dirlist (default_dirlist);
1550 free (default_dirlist);
1551 }
1552
1553 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1554 /* FIXME: Should we allow emulations a chance to set this ? */
1555 link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1556
1557 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1558 /* FIXME: Should we allow emulations a chance to set this ? */
1559 link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1560
1561 #ifdef ENABLE_PLUGINS
1562 /* Now all the plugin arguments have been gathered, we can load them. */
1563 if (plugin_load_plugins ())
1564 einfo (_("%P%F: %s: error loading plugin\n"), plugin_error_plugin ());
1565 #endif /* ENABLE_PLUGINS */
1566 }
1567
1568 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1569 library search path. */
1570
1571 static void
1572 set_default_dirlist (char *dirlist_ptr)
1573 {
1574 char *p;
1575
1576 while (1)
1577 {
1578 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1579 if (p != NULL)
1580 *p = '\0';
1581 if (*dirlist_ptr != '\0')
1582 ldfile_add_library_path (dirlist_ptr, TRUE);
1583 if (p == NULL)
1584 break;
1585 dirlist_ptr = p + 1;
1586 }
1587 }
1588
1589 static void
1590 set_section_start (char *sect, char *valstr)
1591 {
1592 const char *end;
1593 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1594 if (*end)
1595 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1596 lang_section_start (sect, exp_intop (val), NULL);
1597 }
1598
1599 static void
1600 set_segment_start (const char *section, char *valstr)
1601 {
1602 const char *name;
1603 const char *end;
1604 segment_type *seg;
1605
1606 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1607 if (*end)
1608 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1609 /* If we already have an entry for this segment, update the existing
1610 value. */
1611 name = section + 1;
1612 for (seg = segments; seg; seg = seg->next)
1613 if (strcmp (seg->name, name) == 0)
1614 {
1615 seg->value = val;
1616 return;
1617 }
1618 /* There was no existing value so we must create a new segment
1619 entry. */
1620 seg = (segment_type *) stat_alloc (sizeof (*seg));
1621 seg->name = name;
1622 seg->value = val;
1623 seg->used = FALSE;
1624 /* Add it to the linked list of segments. */
1625 seg->next = segments;
1626 segments = seg;
1627 /* Historically, -Ttext and friends set the base address of a
1628 particular section. For backwards compatibility, we still do
1629 that. If a SEGMENT_START directive is seen, the section address
1630 assignment will be disabled. */
1631 lang_section_start (section, exp_intop (val), seg);
1632 }
1633
1634 \f
1635 /* Print help messages for the options. */
1636
1637 static void
1638 help (void)
1639 {
1640 unsigned i;
1641 const char **targets, **pp;
1642 int len;
1643
1644 printf (_("Usage: %s [options] file...\n"), program_name);
1645
1646 printf (_("Options:\n"));
1647 for (i = 0; i < OPTION_COUNT; i++)
1648 {
1649 if (ld_options[i].doc != NULL)
1650 {
1651 bfd_boolean comma;
1652 unsigned j;
1653
1654 printf (" ");
1655
1656 comma = FALSE;
1657 len = 2;
1658
1659 j = i;
1660 do
1661 {
1662 if (ld_options[j].shortopt != '\0'
1663 && ld_options[j].control != NO_HELP)
1664 {
1665 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1666 len += (comma ? 2 : 0) + 2;
1667 if (ld_options[j].arg != NULL)
1668 {
1669 if (ld_options[j].opt.has_arg != optional_argument)
1670 {
1671 printf (" ");
1672 ++len;
1673 }
1674 printf ("%s", _(ld_options[j].arg));
1675 len += strlen (_(ld_options[j].arg));
1676 }
1677 comma = TRUE;
1678 }
1679 ++j;
1680 }
1681 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1682
1683 j = i;
1684 do
1685 {
1686 if (ld_options[j].opt.name != NULL
1687 && ld_options[j].control != NO_HELP)
1688 {
1689 int two_dashes =
1690 (ld_options[j].control == TWO_DASHES
1691 || ld_options[j].control == EXACTLY_TWO_DASHES);
1692
1693 printf ("%s-%s%s",
1694 comma ? ", " : "",
1695 two_dashes ? "-" : "",
1696 ld_options[j].opt.name);
1697 len += ((comma ? 2 : 0)
1698 + 1
1699 + (two_dashes ? 1 : 0)
1700 + strlen (ld_options[j].opt.name));
1701 if (ld_options[j].arg != NULL)
1702 {
1703 printf (" %s", _(ld_options[j].arg));
1704 len += 1 + strlen (_(ld_options[j].arg));
1705 }
1706 comma = TRUE;
1707 }
1708 ++j;
1709 }
1710 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1711
1712 if (len >= 30)
1713 {
1714 printf ("\n");
1715 len = 0;
1716 }
1717
1718 for (; len < 30; len++)
1719 putchar (' ');
1720
1721 printf ("%s\n", _(ld_options[i].doc));
1722 }
1723 }
1724 printf (_(" @FILE"));
1725 for (len = strlen (" @FILE"); len < 30; len++)
1726 putchar (' ');
1727 printf (_("Read options from FILE\n"));
1728
1729 /* Note: Various tools (such as libtool) depend upon the
1730 format of the listings below - do not change them. */
1731 /* xgettext:c-format */
1732 printf (_("%s: supported targets:"), program_name);
1733 targets = bfd_target_list ();
1734 for (pp = targets; *pp != NULL; pp++)
1735 printf (" %s", *pp);
1736 free (targets);
1737 printf ("\n");
1738
1739 /* xgettext:c-format */
1740 printf (_("%s: supported emulations: "), program_name);
1741 ldemul_list_emulations (stdout);
1742 printf ("\n");
1743
1744 /* xgettext:c-format */
1745 printf (_("%s: emulation specific options:\n"), program_name);
1746 ldemul_list_emulation_options (stdout);
1747 printf ("\n");
1748
1749 if (REPORT_BUGS_TO[0])
1750 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
1751 }
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