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libpam: Trim sources that create empty objects.
[dragonfly.git] / contrib / binutils-2.25 / ld / lexsup.c
blob4812c97b32d46dc55db833f9c3b7cda469282c31
1 /* Parse options for the GNU linker.
2 Copyright (C) 1991-2014 Free Software Foundation, Inc.
3
4 This file is part of the GNU Binutils.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "bfdver.h"
24 #include "libiberty.h"
25 #include <stdio.h>
26 #include <string.h>
27 #include "safe-ctype.h"
28 #include "getopt.h"
29 #include "bfdlink.h"
30 #include "ld.h"
31 #include "ldmain.h"
32 #include "ldmisc.h"
33 #include "ldexp.h"
34 #include "ldlang.h"
35 #include <ldgram.h>
36 #include "ldlex.h"
37 #include "ldfile.h"
38 #include "ldver.h"
39 #include "ldemul.h"
40 #include "demangle.h"
41 #ifdef ENABLE_PLUGINS
42 #include "plugin.h"
43 #endif /* ENABLE_PLUGINS */
44
45 #ifndef PATH_SEPARATOR
46 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
47 #define PATH_SEPARATOR ';'
48 #else
49 #define PATH_SEPARATOR ':'
50 #endif
51 #endif
52
53 /* Somewhere above, sys/stat.h got included . . . . */
54 #if !defined(S_ISDIR) && defined(S_IFDIR)
55 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
56 #endif
57
58 static void set_default_dirlist (char *);
59 static void set_section_start (char *, char *);
60 static void set_segment_start (const char *, char *);
61 static void help (void);
62
63 /* The long options. This structure is used for both the option
64 parsing and the help text. */
65
66 enum control_enum {
67 /* Use one dash before long option name. */
68 ONE_DASH,
69 /* Use two dashes before long option name. */
70 TWO_DASHES,
71 /* Only accept two dashes before the long option name.
72 This is an overloading of the use of this enum, since originally it
73 was only intended to tell the --help display function how to display
74 the long option name. This feature was added in order to resolve
75 the confusion about the -omagic command line switch. Is it setting
76 the output file name to "magic" or is it setting the NMAGIC flag on
77 the output ? It has been decided that it is setting the output file
78 name, and that if you want to set the NMAGIC flag you should use -N
79 or --omagic. */
80 EXACTLY_TWO_DASHES,
81 /* Don't mention this option in --help output. */
82 NO_HELP
83 };
84
85 struct ld_option
86 {
87 /* The long option information. */
88 struct option opt;
89 /* The short option with the same meaning ('\0' if none). */
90 char shortopt;
91 /* The name of the argument (NULL if none). */
92 const char *arg;
93 /* The documentation string. If this is NULL, this is a synonym for
94 the previous option. */
95 const char *doc;
96 enum control_enum control;
97 };
98
99 static const struct ld_option ld_options[] =
100 {
101 { {NULL, required_argument, NULL, '\0'},
102 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
103 ONE_DASH },
104 { {"architecture", required_argument, NULL, 'A'},
105 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
106 { {"format", required_argument, NULL, 'b'},
107 'b', N_("TARGET"), N_("Specify target for following input files"),
108 TWO_DASHES },
109 { {"mri-script", required_argument, NULL, 'c'},
110 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
111 { {"dc", no_argument, NULL, 'd'},
112 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
113 { {"dp", no_argument, NULL, 'd'},
114 '\0', NULL, NULL, ONE_DASH },
115 { {"entry", required_argument, NULL, 'e'},
116 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
117 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
118 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
119 { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
120 '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
121 { {"EB", no_argument, NULL, OPTION_EB},
122 '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
123 { {"EL", no_argument, NULL, OPTION_EL},
124 '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
125 { {"auxiliary", required_argument, NULL, 'f'},
126 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
127 TWO_DASHES },
128 { {"filter", required_argument, NULL, 'F'},
129 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
130 TWO_DASHES },
131 { {NULL, no_argument, NULL, '\0'},
132 'g', NULL, N_("Ignored"), ONE_DASH },
133 { {"gpsize", required_argument, NULL, 'G'},
134 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
135 TWO_DASHES },
136 { {"soname", required_argument, NULL, OPTION_SONAME},
137 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
138 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
139 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
140 TWO_DASHES },
141 { {"library", required_argument, NULL, 'l'},
142 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
143 { {"library-path", required_argument, NULL, 'L'},
144 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
145 TWO_DASHES },
146 { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
147 '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
148 { {NULL, required_argument, NULL, '\0'},
149 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
150 { {"print-map", no_argument, NULL, 'M'},
151 'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
152 { {"nmagic", no_argument, NULL, 'n'},
153 'n', NULL, N_("Do not page align data"), TWO_DASHES },
154 { {"omagic", no_argument, NULL, 'N'},
155 'N', NULL, N_("Do not page align data, do not make text readonly"),
156 EXACTLY_TWO_DASHES },
157 { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
158 '\0', NULL, N_("Page align data, make text readonly"),
159 EXACTLY_TWO_DASHES },
160 { {"output", required_argument, NULL, 'o'},
161 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
162 { {NULL, required_argument, NULL, '\0'},
163 'O', NULL, N_("Optimize output file"), ONE_DASH },
164 #ifdef ENABLE_PLUGINS
165 { {"plugin", required_argument, NULL, OPTION_PLUGIN},
166 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH },
167 { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT},
168 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH },
169 { {"flto", optional_argument, NULL, OPTION_IGNORE},
170 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
171 ONE_DASH },
172 { {"flto-partition=", required_argument, NULL, OPTION_IGNORE},
173 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
174 ONE_DASH },
175 #endif /* ENABLE_PLUGINS */
176 { {"fuse-ld=", required_argument, NULL, OPTION_IGNORE},
177 '\0', NULL, N_("Ignored for GCC linker option compatibility"),
178 ONE_DASH },
179 { {"Qy", no_argument, NULL, OPTION_IGNORE},
180 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
181 { {"emit-relocs", no_argument, NULL, 'q'},
182 'q', NULL, "Generate relocations in final output", TWO_DASHES },
183 { {"relocatable", no_argument, NULL, 'r'},
184 'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
185 { {NULL, no_argument, NULL, '\0'},
186 'i', NULL, NULL, ONE_DASH },
187 { {"just-symbols", required_argument, NULL, 'R'},
188 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
189 TWO_DASHES },
190 { {"strip-all", no_argument, NULL, 's'},
191 's', NULL, N_("Strip all symbols"), TWO_DASHES },
192 { {"strip-debug", no_argument, NULL, 'S'},
193 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
194 { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
195 '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
196 { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
197 '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
198 { {"trace", no_argument, NULL, 't'},
199 't', NULL, N_("Trace file opens"), TWO_DASHES },
200 { {"script", required_argument, NULL, 'T'},
201 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
202 { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
203 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
204 { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
205 '\0', NULL, NULL, ONE_DASH },
206 { {"undefined", required_argument, NULL, 'u'},
207 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
208 TWO_DASHES },
209 { {"unique", optional_argument, NULL, OPTION_UNIQUE},
210 '\0', N_("[=SECTION]"),
211 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
212 { {"Ur", no_argument, NULL, OPTION_UR},
213 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
214 { {"version", no_argument, NULL, OPTION_VERSION},
215 'v', NULL, N_("Print version information"), TWO_DASHES },
216 { {NULL, no_argument, NULL, '\0'},
217 'V', NULL, N_("Print version and emulation information"), ONE_DASH },
218 { {"discard-all", no_argument, NULL, 'x'},
219 'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
220 { {"discard-locals", no_argument, NULL, 'X'},
221 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
222 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
223 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
224 { {"trace-symbol", required_argument, NULL, 'y'},
225 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
226 { {NULL, required_argument, NULL, '\0'},
227 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
228 ONE_DASH },
229 { {"start-group", no_argument, NULL, '('},
230 '(', NULL, N_("Start a group"), TWO_DASHES },
231 { {"end-group", no_argument, NULL, ')'},
232 ')', NULL, N_("End a group"), TWO_DASHES },
233 { {"accept-unknown-input-arch", no_argument, NULL,
234 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
235 '\0', NULL,
236 N_("Accept input files whose architecture cannot be determined"),
237 TWO_DASHES },
238 { {"no-accept-unknown-input-arch", no_argument, NULL,
239 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
240 '\0', NULL, N_("Reject input files whose architecture is unknown"),
241 TWO_DASHES },
242
243 /* The next two options are deprecated because of their similarity to
244 --as-needed and --no-as-needed. They have been replaced by
245 --copy-dt-needed-entries and --no-copy-dt-needed-entries. */
246 { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
247 '\0', NULL, NULL, NO_HELP },
248 { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
249 '\0', NULL, NULL, NO_HELP },
250
251 { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR},
252 '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
253 TWO_DASHES },
254 { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR},
255 '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
256 " the command line"),
257 TWO_DASHES },
258 { {"assert", required_argument, NULL, OPTION_ASSERT},
259 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
260 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
261 '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
262 { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
263 '\0', NULL, NULL, ONE_DASH },
264 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
265 '\0', NULL, NULL, ONE_DASH },
266 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
267 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
268 { {"dn", no_argument, NULL, OPTION_NON_SHARED},
269 '\0', NULL, NULL, ONE_DASH },
270 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
271 '\0', NULL, NULL, ONE_DASH },
272 { {"static", no_argument, NULL, OPTION_NON_SHARED},
273 '\0', NULL, NULL, ONE_DASH },
274 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
275 '\0', NULL, N_("Bind global references locally"), ONE_DASH },
276 { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
277 '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
278 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
279 '\0', NULL, N_("Check section addresses for overlaps (default)"),
280 TWO_DASHES },
281 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
282 '\0', NULL, N_("Do not check section addresses for overlaps"),
283 TWO_DASHES },
284 { {"copy-dt-needed-entries", no_argument, NULL,
285 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
286 '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
287 TWO_DASHES },
288 { {"no-copy-dt-needed-entries", no_argument, NULL,
289 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
290 '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
291 TWO_DASHES },
292
293 { {"cref", no_argument, NULL, OPTION_CREF},
294 '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
295 { {"defsym", required_argument, NULL, OPTION_DEFSYM},
296 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
297 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
298 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
299 TWO_DASHES },
300 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
301 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
302 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
303 '\0', NULL, N_("Treat warnings as errors"),
304 TWO_DASHES },
305 { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
306 '\0', NULL, N_("Do not treat warnings as errors (default)"),
307 TWO_DASHES },
308 { {"fini", required_argument, NULL, OPTION_FINI},
309 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
310 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
311 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
312 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
313 '\0', NULL, N_("Remove unused sections (on some targets)"),
314 TWO_DASHES },
315 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
316 '\0', NULL, N_("Don't remove unused sections (default)"),
317 TWO_DASHES },
318 { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
319 '\0', NULL, N_("List removed unused sections on stderr"),
320 TWO_DASHES },
321 { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
322 '\0', NULL, N_("Do not list removed unused sections"),
323 TWO_DASHES },
324 { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
325 '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
326 TWO_DASHES },
327 { {"help", no_argument, NULL, OPTION_HELP},
328 '\0', NULL, N_("Print option help"), TWO_DASHES },
329 { {"init", required_argument, NULL, OPTION_INIT},
330 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
331 { {"Map", required_argument, NULL, OPTION_MAP},
332 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
333 { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
334 '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
335 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
336 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
337 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
338 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
339 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
340 '\0', NULL, N_("Do not allow unresolved references in object files"),
341 TWO_DASHES },
342 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
343 '\0', NULL, N_("Allow unresolved references in shared libraries"),
344 TWO_DASHES },
345 { {"no-allow-shlib-undefined", no_argument, NULL,
346 OPTION_NO_ALLOW_SHLIB_UNDEFINED},
347 '\0', NULL, N_("Do not allow unresolved references in shared libs"),
348 TWO_DASHES },
349 { {"allow-multiple-definition", no_argument, NULL,
350 OPTION_ALLOW_MULTIPLE_DEFINITION},
351 '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
352 { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
353 '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
354 { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
355 '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
356 { {"default-imported-symver", no_argument, NULL,
357 OPTION_DEFAULT_IMPORTED_SYMVER},
358 '\0', NULL, N_("Create default symbol version for imported symbols"),
359 TWO_DASHES },
360 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
361 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
362 { {"no-warn-search-mismatch", no_argument, NULL,
363 OPTION_NO_WARN_SEARCH_MISMATCH},
364 '\0', NULL, N_("Don't warn on finding an incompatible library"),
365 TWO_DASHES},
366 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
367 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
368 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
369 '\0', NULL, N_("Create an output file even if errors occur"),
370 TWO_DASHES },
371 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
372 '\0', NULL, NULL, NO_HELP },
373 { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
374 '\0', NULL, N_("Only use library directories specified on\n"
375 " the command line"),
376 ONE_DASH },
377 { {"oformat", required_argument, NULL, OPTION_OFORMAT},
378 '\0', N_("TARGET"), N_("Specify target of output file"),
379 EXACTLY_TWO_DASHES },
380 { {"print-output-format", no_argument, NULL, OPTION_PRINT_OUTPUT_FORMAT},
381 '\0', NULL, N_("Print default output format"), TWO_DASHES },
382 { {"print-sysroot", no_argument, NULL, OPTION_PRINT_SYSROOT},
383 '\0', NULL, N_("Print current sysroot"), TWO_DASHES },
384 { {"qmagic", no_argument, NULL, OPTION_IGNORE},
385 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
386 { {"reduce-memory-overheads", no_argument, NULL,
387 OPTION_REDUCE_MEMORY_OVERHEADS},
388 '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
389 TWO_DASHES },
390 { {"relax", no_argument, NULL, OPTION_RELAX},
391 '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES },
392 { {"no-relax", no_argument, NULL, OPTION_NO_RELAX},
393 '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES },
394 { {"retain-symbols-file", required_argument, NULL,
395 OPTION_RETAIN_SYMBOLS_FILE},
396 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
397 { {"rpath", required_argument, NULL, OPTION_RPATH},
398 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
399 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
400 '\0', N_("PATH"), N_("Set link time shared library search path"),
401 ONE_DASH },
402 { {"shared", no_argument, NULL, OPTION_SHARED},
403 '\0', NULL, N_("Create a shared library"), ONE_DASH },
404 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
405 '\0', NULL, NULL, ONE_DASH },
406 { {"pie", no_argument, NULL, OPTION_PIE},
407 '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
408 { {"pic-executable", no_argument, NULL, OPTION_PIE},
409 '\0', NULL, NULL, TWO_DASHES },
410 { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
411 '\0', N_("[=ascending|descending]"),
412 N_("Sort common symbols by alignment [in specified order]"),
413 TWO_DASHES },
414 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
415 '\0', NULL, NULL, NO_HELP },
416 { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
417 '\0', N_("name|alignment"),
418 N_("Sort sections by name or maximum alignment"), TWO_DASHES },
419 { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
420 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
421 TWO_DASHES },
422 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
423 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
424 TWO_DASHES },
425 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
426 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
427 TWO_DASHES },
428 { {"stats", no_argument, NULL, OPTION_STATS},
429 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
430 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
431 '\0', NULL, N_("Display target specific options"), TWO_DASHES },
432 { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
433 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
434 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
435 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
436 { {"section-start", required_argument, NULL, OPTION_SECTION_START},
437 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
438 TWO_DASHES },
439 { {"Tbss", required_argument, NULL, OPTION_TBSS},
440 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
441 { {"Tdata", required_argument, NULL, OPTION_TDATA},
442 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
443 { {"Ttext", required_argument, NULL, OPTION_TTEXT},
444 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
445 { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT},
446 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
447 { {"Trodata-segment", required_argument, NULL, OPTION_TRODATA_SEGMENT},
448 '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH },
449 { {"Tldata-segment", required_argument, NULL, OPTION_TLDATA_SEGMENT},
450 '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH },
451 { {"unresolved-symbols=<method>", required_argument, NULL,
452 OPTION_UNRESOLVED_SYMBOLS},
453 '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n"
454 " ignore-all, report-all, ignore-in-object-files,\n"
455 " ignore-in-shared-libs"),
456 TWO_DASHES },
457 { {"verbose", optional_argument, NULL, OPTION_VERBOSE},
458 '\0', N_("[=NUMBER]"),
459 N_("Output lots of information during link"), TWO_DASHES },
460 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
461 '\0', NULL, NULL, NO_HELP },
462 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
463 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
464 { {"version-exports-section", required_argument, NULL,
465 OPTION_VERSION_EXPORTS_SECTION },
466 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
467 " SYMBOL as the version."),
468 TWO_DASHES },
469 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
470 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
471 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
472 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
473 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
474 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
475 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
476 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
477 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
478 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
479 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
480 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
481 TWO_DASHES },
482 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
483 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
484 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
485 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
486 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
487 '\0', NULL, N_("Warn if start of section changes due to alignment"),
488 TWO_DASHES },
489 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
490 '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
491 TWO_DASHES },
492 { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
493 '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
494 TWO_DASHES },
495 { {"warn-unresolved-symbols", no_argument, NULL,
496 OPTION_WARN_UNRESOLVED_SYMBOLS},
497 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
498 { {"error-unresolved-symbols", no_argument, NULL,
499 OPTION_ERROR_UNRESOLVED_SYMBOLS},
500 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
501 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
502 '\0', NULL, N_("Include all objects from following archives"),
503 TWO_DASHES },
504 { {"wrap", required_argument, NULL, OPTION_WRAP},
505 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
506 { {"ignore-unresolved-symbol", required_argument, NULL,
507 OPTION_IGNORE_UNRESOLVED_SYMBOL},
508 '\0', N_("SYMBOL"),
509 N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES },
510 { {"push-state", no_argument, NULL, OPTION_PUSH_STATE},
511 '\0', NULL, N_("Push state of flags governing input file handling"),
512 TWO_DASHES },
513 { {"pop-state", no_argument, NULL, OPTION_POP_STATE},
514 '\0', NULL, N_("Pop state of flags governing input file handling"),
515 TWO_DASHES },
516 };
517
518 #define OPTION_COUNT ARRAY_SIZE (ld_options)
519
520 void
521 parse_args (unsigned argc, char **argv)
522 {
523 unsigned i;
524 int is, il, irl;
525 int ingroup = 0;
526 char *default_dirlist = NULL;
527 char *shortopts;
528 struct option *longopts;
529 struct option *really_longopts;
530 int last_optind;
531 enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
532
533 shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2);
534 longopts = (struct option *)
535 xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
536 really_longopts = (struct option *)
537 malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
538
539 /* Starting the short option string with '-' is for programs that
540 expect options and other ARGV-elements in any order and that care about
541 the ordering of the two. We describe each non-option ARGV-element
542 as if it were the argument of an option with character code 1. */
543 shortopts[0] = '-';
544 is = 1;
545 il = 0;
546 irl = 0;
547 for (i = 0; i < OPTION_COUNT; i++)
548 {
549 if (ld_options[i].shortopt != '\0')
550 {
551 shortopts[is] = ld_options[i].shortopt;
552 ++is;
553 if (ld_options[i].opt.has_arg == required_argument
554 || ld_options[i].opt.has_arg == optional_argument)
555 {
556 shortopts[is] = ':';
557 ++is;
558 if (ld_options[i].opt.has_arg == optional_argument)
559 {
560 shortopts[is] = ':';
561 ++is;
562 }
563 }
564 }
565 if (ld_options[i].opt.name != NULL)
566 {
567 if (ld_options[i].control == EXACTLY_TWO_DASHES)
568 {
569 really_longopts[irl] = ld_options[i].opt;
570 ++irl;
571 }
572 else
573 {
574 longopts[il] = ld_options[i].opt;
575 ++il;
576 }
577 }
578 }
579 shortopts[is] = '\0';
580 longopts[il].name = NULL;
581 really_longopts[irl].name = NULL;
582
583 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
584
585 /* The -G option is ambiguous on different platforms. Sometimes it
586 specifies the largest data size to put into the small data
587 section. Sometimes it is equivalent to --shared. Unfortunately,
588 the first form takes an argument, while the second does not.
589
590 We need to permit the --shared form because on some platforms,
591 such as Solaris, gcc -shared will pass -G to the linker.
592
593 To permit either usage, we look through the argument list. If we
594 find -G not followed by a number, we change it into --shared.
595 This will work for most normal cases. */
596 for (i = 1; i < argc; i++)
597 if (strcmp (argv[i], "-G") == 0
598 && (i + 1 >= argc
599 || ! ISDIGIT (argv[i + 1][0])))
600 argv[i] = (char *) "--shared";
601
602 /* Because we permit long options to start with a single dash, and
603 we have a --library option, and the -l option is conventionally
604 used with an immediately following argument, we can have bad
605 results if somebody tries to use -l with a library whose name
606 happens to start with "ibrary", as in -li. We avoid problems by
607 simply turning -l into --library. This means that users will
608 have to use two dashes in order to use --library, which is OK
609 since that's how it is documented.
610
611 FIXME: It's possible that this problem can arise for other short
612 options as well, although the user does always have the recourse
613 of adding a space between the option and the argument. */
614 for (i = 1; i < argc; i++)
615 {
616 if (argv[i][0] == '-'
617 && argv[i][1] == 'l'
618 && argv[i][2] != '\0')
619 {
620 char *n;
621
622 n = (char *) xmalloc (strlen (argv[i]) + 20);
623 sprintf (n, "--library=%s", argv[i] + 2);
624 argv[i] = n;
625 }
626 }
627
628 last_optind = -1;
629 while (1)
630 {
631 int longind;
632 int optc;
633 static unsigned int defsym_count;
634
635 /* Using last_optind lets us avoid calling ldemul_parse_args
636 multiple times on a single option, which would lead to
637 confusion in the internal static variables maintained by
638 getopt. This could otherwise happen for an argument like
639 -nx, in which the -n is parsed as a single option, and we
640 loop around to pick up the -x. */
641 if (optind != last_optind)
642 if (ldemul_parse_args (argc, argv))
643 continue;
644
645 /* getopt_long_only is like getopt_long, but '-' as well as '--'
646 can indicate a long option. */
647 opterr = 0;
648 last_optind = optind;
649 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
650 if (optc == '?')
651 {
652 optind = last_optind;
653 optc = getopt_long (argc, argv, "-", really_longopts, &longind);
654 }
655
656 if (ldemul_handle_option (optc))
657 continue;
658
659 if (optc == -1)
660 break;
661
662 switch (optc)
663 {
664 case '?':
665 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
666 /* Fall through. */
667
668 default:
669 einfo (_("%P%F: use the --help option for usage information\n"));
670
671 case 1: /* File name. */
672 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
673 break;
674
675 case OPTION_IGNORE:
676 break;
677 case 'a':
678 /* For HP/UX compatibility. Actually -a shared should mean
679 ``use only shared libraries'' but, then, we don't
680 currently support shared libraries on HP/UX anyhow. */
681 if (strcmp (optarg, "archive") == 0)
682 input_flags.dynamic = FALSE;
683 else if (strcmp (optarg, "shared") == 0
684 || strcmp (optarg, "default") == 0)
685 input_flags.dynamic = TRUE;
686 else
687 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
688 break;
689 case OPTION_ASSERT:
690 /* FIXME: We just ignore these, but we should handle them. */
691 if (strcmp (optarg, "definitions") == 0)
692 ;
693 else if (strcmp (optarg, "nodefinitions") == 0)
694 ;
695 else if (strcmp (optarg, "nosymbolic") == 0)
696 ;
697 else if (strcmp (optarg, "pure-text") == 0)
698 ;
699 else
700 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
701 break;
702 case 'A':
703 ldfile_add_arch (optarg);
704 break;
705 case 'b':
706 lang_add_target (optarg);
707 break;
708 case 'c':
709 ldfile_open_command_file (optarg);
710 parser_input = input_mri_script;
711 yyparse ();
712 break;
713 case OPTION_CALL_SHARED:
714 input_flags.dynamic = TRUE;
715 break;
716 case OPTION_NON_SHARED:
717 input_flags.dynamic = FALSE;
718 break;
719 case OPTION_CREF:
720 command_line.cref = TRUE;
721 link_info.notice_all = TRUE;
722 break;
723 case 'd':
724 command_line.force_common_definition = TRUE;
725 break;
726 case OPTION_DEFSYM:
727 lex_string = optarg;
728 lex_redirect (optarg, "--defsym", ++defsym_count);
729 parser_input = input_defsym;
730 yyparse ();
731 lex_string = NULL;
732 break;
733 case OPTION_DEMANGLE:
734 demangling = TRUE;
735 if (optarg != NULL)
736 {
737 enum demangling_styles style;
738
739 style = cplus_demangle_name_to_style (optarg);
740 if (style == unknown_demangling)
741 einfo (_("%F%P: unknown demangling style `%s'\n"),
742 optarg);
743
744 cplus_demangle_set_style (style);
745 }
746 break;
747 case 'I': /* Used on Solaris. */
748 case OPTION_DYNAMIC_LINKER:
749 command_line.interpreter = optarg;
750 break;
751 case OPTION_SYSROOT:
752 /* Already handled in ldmain.c. */
753 break;
754 case OPTION_EB:
755 command_line.endian = ENDIAN_BIG;
756 break;
757 case OPTION_EL:
758 command_line.endian = ENDIAN_LITTLE;
759 break;
760 case OPTION_EMBEDDED_RELOCS:
761 command_line.embedded_relocs = TRUE;
762 break;
763 case OPTION_EXPORT_DYNAMIC:
764 case 'E': /* HP/UX compatibility. */
765 link_info.export_dynamic = TRUE;
766 break;
767 case OPTION_NO_EXPORT_DYNAMIC:
768 link_info.export_dynamic = FALSE;
769 break;
770 case 'e':
771 lang_add_entry (optarg, TRUE);
772 break;
773 case 'f':
774 if (command_line.auxiliary_filters == NULL)
775 {
776 command_line.auxiliary_filters = (char **)
777 xmalloc (2 * sizeof (char *));
778 command_line.auxiliary_filters[0] = optarg;
779 command_line.auxiliary_filters[1] = NULL;
780 }
781 else
782 {
783 int c;
784 char **p;
785
786 c = 0;
787 for (p = command_line.auxiliary_filters; *p != NULL; p++)
788 ++c;
789 command_line.auxiliary_filters = (char **)
790 xrealloc (command_line.auxiliary_filters,
791 (c + 2) * sizeof (char *));
792 command_line.auxiliary_filters[c] = optarg;
793 command_line.auxiliary_filters[c + 1] = NULL;
794 }
795 break;
796 case 'F':
797 command_line.filter_shlib = optarg;
798 break;
799 case OPTION_FORCE_EXE_SUFFIX:
800 command_line.force_exe_suffix = TRUE;
801 break;
802 case 'G':
803 {
804 char *end;
805 g_switch_value = strtoul (optarg, &end, 0);
806 if (*end)
807 einfo (_("%P%F: invalid number `%s'\n"), optarg);
808 }
809 break;
810 case 'g':
811 /* Ignore. */
812 break;
813 case OPTION_GC_SECTIONS:
814 link_info.gc_sections = TRUE;
815 break;
816 case OPTION_PRINT_GC_SECTIONS:
817 link_info.print_gc_sections = TRUE;
818 break;
819 case OPTION_HELP:
820 help ();
821 xexit (0);
822 break;
823 case 'L':
824 ldfile_add_library_path (optarg, TRUE);
825 break;
826 case 'l':
827 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
828 break;
829 case 'M':
830 config.map_filename = "-";
831 break;
832 case 'm':
833 /* Ignore. Was handled in a pre-parse. */
834 break;
835 case OPTION_MAP:
836 config.map_filename = optarg;
837 break;
838 case 'N':
839 config.text_read_only = FALSE;
840 config.magic_demand_paged = FALSE;
841 input_flags.dynamic = FALSE;
842 break;
843 case OPTION_NO_OMAGIC:
844 config.text_read_only = TRUE;
845 config.magic_demand_paged = TRUE;
846 /* NB/ Does not set input_flags.dynamic to TRUE.
847 Use --call-shared or -Bdynamic for this. */
848 break;
849 case 'n':
850 config.magic_demand_paged = FALSE;
851 input_flags.dynamic = FALSE;
852 break;
853 case OPTION_NO_DEFINE_COMMON:
854 command_line.inhibit_common_definition = TRUE;
855 break;
856 case OPTION_NO_DEMANGLE:
857 demangling = FALSE;
858 break;
859 case OPTION_NO_GC_SECTIONS:
860 link_info.gc_sections = FALSE;
861 break;
862 case OPTION_NO_PRINT_GC_SECTIONS:
863 link_info.print_gc_sections = FALSE;
864 break;
865 case OPTION_NO_KEEP_MEMORY:
866 link_info.keep_memory = FALSE;
867 break;
868 case OPTION_NO_UNDEFINED:
869 link_info.unresolved_syms_in_objects
870 = how_to_report_unresolved_symbols;
871 break;
872 case OPTION_ALLOW_SHLIB_UNDEFINED:
873 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
874 break;
875 case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
876 link_info.unresolved_syms_in_shared_libs
877 = how_to_report_unresolved_symbols;
878 break;
879 case OPTION_UNRESOLVED_SYMBOLS:
880 if (strcmp (optarg, "ignore-all") == 0)
881 {
882 link_info.unresolved_syms_in_objects = RM_IGNORE;
883 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
884 }
885 else if (strcmp (optarg, "report-all") == 0)
886 {
887 link_info.unresolved_syms_in_objects
888 = how_to_report_unresolved_symbols;
889 link_info.unresolved_syms_in_shared_libs
890 = how_to_report_unresolved_symbols;
891 }
892 else if (strcmp (optarg, "ignore-in-object-files") == 0)
893 {
894 link_info.unresolved_syms_in_objects = RM_IGNORE;
895 link_info.unresolved_syms_in_shared_libs
896 = how_to_report_unresolved_symbols;
897 }
898 else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
899 {
900 link_info.unresolved_syms_in_objects
901 = how_to_report_unresolved_symbols;
902 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
903 }
904 else
905 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
906 break;
907 case OPTION_WARN_UNRESOLVED_SYMBOLS:
908 how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
909 if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
910 link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
911 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
912 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
913 break;
914
915 case OPTION_ERROR_UNRESOLVED_SYMBOLS:
916 how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
917 if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
918 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
919 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
920 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
921 break;
922 case OPTION_ALLOW_MULTIPLE_DEFINITION:
923 link_info.allow_multiple_definition = TRUE;
924 break;
925 case OPTION_NO_UNDEFINED_VERSION:
926 link_info.allow_undefined_version = FALSE;
927 break;
928 case OPTION_DEFAULT_SYMVER:
929 link_info.create_default_symver = TRUE;
930 break;
931 case OPTION_DEFAULT_IMPORTED_SYMVER:
932 link_info.default_imported_symver = TRUE;
933 break;
934 case OPTION_NO_WARN_MISMATCH:
935 command_line.warn_mismatch = FALSE;
936 break;
937 case OPTION_NO_WARN_SEARCH_MISMATCH:
938 command_line.warn_search_mismatch = FALSE;
939 break;
940 case OPTION_NOINHIBIT_EXEC:
941 force_make_executable = TRUE;
942 break;
943 case OPTION_NOSTDLIB:
944 config.only_cmd_line_lib_dirs = TRUE;
945 break;
946 case OPTION_NO_WHOLE_ARCHIVE:
947 input_flags.whole_archive = FALSE;
948 break;
949 case 'O':
950 /* FIXME "-O<non-digits> <value>" used to set the address of
951 section <non-digits>. Was this for compatibility with
952 something, or can we create a new option to do that
953 (with a syntax similar to -defsym)?
954 getopt can't handle two args to an option without kludges. */
955
956 /* Enable optimizations of output files. */
957 link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
958 break;
959 case 'o':
960 lang_add_output (optarg, 0);
961 break;
962 case OPTION_OFORMAT:
963 lang_add_output_format (optarg, NULL, NULL, 0);
964 break;
965 case OPTION_PRINT_SYSROOT:
966 if (*ld_sysroot)
967 puts (ld_sysroot);
968 xexit (0);
969 break;
970 case OPTION_PRINT_OUTPUT_FORMAT:
971 command_line.print_output_format = TRUE;
972 break;
973 #ifdef ENABLE_PLUGINS
974 case OPTION_PLUGIN:
975 plugin_opt_plugin (optarg);
976 break;
977 case OPTION_PLUGIN_OPT:
978 if (plugin_opt_plugin_arg (optarg))
979 einfo(_("%P%F: bad -plugin-opt option\n"));
980 break;
981 #endif /* ENABLE_PLUGINS */
982 case 'q':
983 link_info.emitrelocations = TRUE;
984 break;
985 case 'i':
986 case 'r':
987 if (optind == last_optind)
988 /* This can happen if the user put "-rpath,a" on the command
989 line. (Or something similar. The comma is important).
990 Getopt becomes confused and thinks that this is a -r option
991 but it cannot parse the text after the -r so it refuses to
992 increment the optind counter. Detect this case and issue
993 an error message here. We cannot just make this a warning,
994 increment optind, and continue because getopt is too confused
995 and will seg-fault the next time around. */
996 einfo(_("%P%F: bad -rpath option\n"));
997
998 link_info.relocatable = TRUE;
999 config.build_constructors = FALSE;
1000 config.magic_demand_paged = FALSE;
1001 config.text_read_only = FALSE;
1002 input_flags.dynamic = FALSE;
1003 break;
1004 case 'R':
1005 /* The GNU linker traditionally uses -R to mean to include
1006 only the symbols from a file. The Solaris linker uses -R
1007 to set the path used by the runtime linker to find
1008 libraries. This is the GNU linker -rpath argument. We
1009 try to support both simultaneously by checking the file
1010 named. If it is a directory, rather than a regular file,
1011 we assume -rpath was meant. */
1012 {
1013 struct stat s;
1014
1015 if (stat (optarg, &s) >= 0
1016 && ! S_ISDIR (s.st_mode))
1017 {
1018 lang_add_input_file (optarg,
1019 lang_input_file_is_symbols_only_enum,
1020 NULL);
1021 break;
1022 }
1023 }
1024 /* Fall through. */
1025 case OPTION_RPATH:
1026 if (command_line.rpath == NULL)
1027 command_line.rpath = xstrdup (optarg);
1028 else
1029 {
1030 size_t rpath_len = strlen (command_line.rpath);
1031 size_t optarg_len = strlen (optarg);
1032 char *buf;
1033 char *cp = command_line.rpath;
1034
1035 /* First see whether OPTARG is already in the path. */
1036 do
1037 {
1038 if (strncmp (optarg, cp, optarg_len) == 0
1039 && (cp[optarg_len] == 0
1040 || cp[optarg_len] == config.rpath_separator))
1041 /* We found it. */
1042 break;
1043
1044 /* Not yet found. */
1045 cp = strchr (cp, config.rpath_separator);
1046 if (cp != NULL)
1047 ++cp;
1048 }
1049 while (cp != NULL);
1050
1051 if (cp == NULL)
1052 {
1053 buf = (char *) xmalloc (rpath_len + optarg_len + 2);
1054 sprintf (buf, "%s%c%s", command_line.rpath,
1055 config.rpath_separator, optarg);
1056 free (command_line.rpath);
1057 command_line.rpath = buf;
1058 }
1059 }
1060 break;
1061 case OPTION_RPATH_LINK:
1062 if (command_line.rpath_link == NULL)
1063 command_line.rpath_link = xstrdup (optarg);
1064 else
1065 {
1066 char *buf;
1067
1068 buf = (char *) xmalloc (strlen (command_line.rpath_link)
1069 + strlen (optarg)
1070 + 2);
1071 sprintf (buf, "%s%c%s", command_line.rpath_link,
1072 config.rpath_separator, optarg);
1073 free (command_line.rpath_link);
1074 command_line.rpath_link = buf;
1075 }
1076 break;
1077 case OPTION_NO_RELAX:
1078 DISABLE_RELAXATION;
1079 break;
1080 case OPTION_RELAX:
1081 ENABLE_RELAXATION;
1082 break;
1083 case OPTION_RETAIN_SYMBOLS_FILE:
1084 add_keepsyms_file (optarg);
1085 break;
1086 case 'S':
1087 link_info.strip = strip_debugger;
1088 break;
1089 case 's':
1090 link_info.strip = strip_all;
1091 break;
1092 case OPTION_STRIP_DISCARDED:
1093 link_info.strip_discarded = TRUE;
1094 break;
1095 case OPTION_NO_STRIP_DISCARDED:
1096 link_info.strip_discarded = FALSE;
1097 break;
1098 case OPTION_SHARED:
1099 if (config.has_shared)
1100 {
1101 link_info.shared = TRUE;
1102 /* When creating a shared library, the default
1103 behaviour is to ignore any unresolved references. */
1104 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1105 link_info.unresolved_syms_in_objects = RM_IGNORE;
1106 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1107 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1108 }
1109 else
1110 einfo (_("%P%F: -shared not supported\n"));
1111 break;
1112 case OPTION_PIE:
1113 if (config.has_shared)
1114 {
1115 link_info.shared = TRUE;
1116 link_info.pie = TRUE;
1117 }
1118 else
1119 einfo (_("%P%F: -pie not supported\n"));
1120 break;
1121 case 'h': /* Used on Solaris. */
1122 case OPTION_SONAME:
1123 if (optarg[0] == '\0' && command_line.soname
1124 && command_line.soname[0])
1125 einfo (_("%P: SONAME must not be empty string; keeping previous one\n"));
1126 else
1127 command_line.soname = optarg;
1128 break;
1129 case OPTION_SORT_COMMON:
1130 if (optarg == NULL
1131 || strcmp (optarg, N_("descending")) == 0)
1132 config.sort_common = sort_descending;
1133 else if (strcmp (optarg, N_("ascending")) == 0)
1134 config.sort_common = sort_ascending;
1135 else
1136 einfo (_("%P%F: invalid common section sorting option: %s\n"),
1137 optarg);
1138 break;
1139 case OPTION_SORT_SECTION:
1140 if (strcmp (optarg, N_("name")) == 0)
1141 sort_section = by_name;
1142 else if (strcmp (optarg, N_("alignment")) == 0)
1143 sort_section = by_alignment;
1144 else
1145 einfo (_("%P%F: invalid section sorting option: %s\n"),
1146 optarg);
1147 break;
1148 case OPTION_STATS:
1149 config.stats = TRUE;
1150 break;
1151 case OPTION_SYMBOLIC:
1152 command_line.symbolic = symbolic;
1153 break;
1154 case OPTION_SYMBOLIC_FUNCTIONS:
1155 command_line.symbolic = symbolic_functions;
1156 break;
1157 case 't':
1158 trace_files = TRUE;
1159 break;
1160 case 'T':
1161 previous_script_handle = saved_script_handle;
1162 ldfile_open_command_file (optarg);
1163 parser_input = input_script;
1164 yyparse ();
1165 previous_script_handle = NULL;
1166 break;
1167 case OPTION_DEFAULT_SCRIPT:
1168 command_line.default_script = optarg;
1169 break;
1170 case OPTION_SECTION_START:
1171 {
1172 char *optarg2;
1173 char *sec_name;
1174 int len;
1175
1176 /* Check for <something>=<somthing>... */
1177 optarg2 = strchr (optarg, '=');
1178 if (optarg2 == NULL)
1179 einfo (_("%P%F: invalid argument to option"
1180 " \"--section-start\"\n"));
1181
1182 optarg2++;
1183
1184 /* So far so good. Are all the args present? */
1185 if ((*optarg == '\0') || (*optarg2 == '\0'))
1186 einfo (_("%P%F: missing argument(s) to option"
1187 " \"--section-start\"\n"));
1188
1189 /* We must copy the section name as set_section_start
1190 doesn't do it for us. */
1191 len = optarg2 - optarg;
1192 sec_name = (char *) xmalloc (len);
1193 memcpy (sec_name, optarg, len - 1);
1194 sec_name[len - 1] = 0;
1195
1196 /* Then set it... */
1197 set_section_start (sec_name, optarg2);
1198 }
1199 break;
1200 case OPTION_TARGET_HELP:
1201 /* Mention any target specific options. */
1202 ldemul_list_emulation_options (stdout);
1203 exit (0);
1204 case OPTION_TBSS:
1205 set_segment_start (".bss", optarg);
1206 break;
1207 case OPTION_TDATA:
1208 set_segment_start (".data", optarg);
1209 break;
1210 case OPTION_TTEXT:
1211 set_segment_start (".text", optarg);
1212 break;
1213 case OPTION_TTEXT_SEGMENT:
1214 set_segment_start (".text-segment", optarg);
1215 break;
1216 case OPTION_TRODATA_SEGMENT:
1217 set_segment_start (".rodata-segment", optarg);
1218 break;
1219 case OPTION_TLDATA_SEGMENT:
1220 set_segment_start (".ldata-segment", optarg);
1221 break;
1222 case OPTION_TRADITIONAL_FORMAT:
1223 link_info.traditional_format = TRUE;
1224 break;
1225 case OPTION_TASK_LINK:
1226 link_info.task_link = TRUE;
1227 /* Fall through - do an implied -r option. */
1228 case OPTION_UR:
1229 link_info.relocatable = TRUE;
1230 config.build_constructors = TRUE;
1231 config.magic_demand_paged = FALSE;
1232 config.text_read_only = FALSE;
1233 input_flags.dynamic = FALSE;
1234 break;
1235 case 'u':
1236 ldlang_add_undef (optarg, TRUE);
1237 break;
1238 case OPTION_UNIQUE:
1239 if (optarg != NULL)
1240 lang_add_unique (optarg);
1241 else
1242 config.unique_orphan_sections = TRUE;
1243 break;
1244 case OPTION_VERBOSE:
1245 ldversion (1);
1246 version_printed = TRUE;
1247 verbose = TRUE;
1248 overflow_cutoff_limit = -2;
1249 if (optarg != NULL)
1250 {
1251 char *end;
1252 int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0);
1253 if (*end)
1254 einfo (_("%P%F: invalid number `%s'\n"), optarg);
1255 #ifdef ENABLE_PLUGINS
1256 report_plugin_symbols = level > 1;
1257 #endif /* ENABLE_PLUGINS */
1258 }
1259 break;
1260 case 'v':
1261 ldversion (0);
1262 version_printed = TRUE;
1263 break;
1264 case 'V':
1265 ldversion (1);
1266 version_printed = TRUE;
1267 break;
1268 case OPTION_VERSION:
1269 ldversion (2);
1270 xexit (0);
1271 break;
1272 case OPTION_VERSION_SCRIPT:
1273 /* This option indicates a small script that only specifies
1274 version information. Read it, but don't assume that
1275 we've seen a linker script. */
1276 {
1277 FILE *hold_script_handle;
1278
1279 hold_script_handle = saved_script_handle;
1280 ldfile_open_command_file (optarg);
1281 saved_script_handle = hold_script_handle;
1282 parser_input = input_version_script;
1283 yyparse ();
1284 }
1285 break;
1286 case OPTION_VERSION_EXPORTS_SECTION:
1287 /* This option records a version symbol to be applied to the
1288 symbols listed for export to be found in the object files
1289 .exports sections. */
1290 command_line.version_exports_section = optarg;
1291 break;
1292 case OPTION_DYNAMIC_LIST_DATA:
1293 command_line.dynamic_list = dynamic_list_data;
1294 if (command_line.symbolic == symbolic)
1295 command_line.symbolic = symbolic_unset;
1296 break;
1297 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1298 lang_append_dynamic_list_cpp_typeinfo ();
1299 if (command_line.dynamic_list != dynamic_list_data)
1300 command_line.dynamic_list = dynamic_list;
1301 if (command_line.symbolic == symbolic)
1302 command_line.symbolic = symbolic_unset;
1303 break;
1304 case OPTION_DYNAMIC_LIST_CPP_NEW:
1305 lang_append_dynamic_list_cpp_new ();
1306 if (command_line.dynamic_list != dynamic_list_data)
1307 command_line.dynamic_list = dynamic_list;
1308 if (command_line.symbolic == symbolic)
1309 command_line.symbolic = symbolic_unset;
1310 break;
1311 case OPTION_DYNAMIC_LIST:
1312 /* This option indicates a small script that only specifies
1313 a dynamic list. Read it, but don't assume that we've
1314 seen a linker script. */
1315 {
1316 FILE *hold_script_handle;
1317
1318 hold_script_handle = saved_script_handle;
1319 ldfile_open_command_file (optarg);
1320 saved_script_handle = hold_script_handle;
1321 parser_input = input_dynamic_list;
1322 yyparse ();
1323 }
1324 if (command_line.dynamic_list != dynamic_list_data)
1325 command_line.dynamic_list = dynamic_list;
1326 if (command_line.symbolic == symbolic)
1327 command_line.symbolic = symbolic_unset;
1328 break;
1329 case OPTION_WARN_COMMON:
1330 config.warn_common = TRUE;
1331 break;
1332 case OPTION_WARN_CONSTRUCTORS:
1333 config.warn_constructors = TRUE;
1334 break;
1335 case OPTION_WARN_FATAL:
1336 config.fatal_warnings = TRUE;
1337 break;
1338 case OPTION_NO_WARN_FATAL:
1339 config.fatal_warnings = FALSE;
1340 break;
1341 case OPTION_WARN_MULTIPLE_GP:
1342 config.warn_multiple_gp = TRUE;
1343 break;
1344 case OPTION_WARN_ONCE:
1345 config.warn_once = TRUE;
1346 break;
1347 case OPTION_WARN_SECTION_ALIGN:
1348 config.warn_section_align = TRUE;
1349 break;
1350 case OPTION_WARN_SHARED_TEXTREL:
1351 link_info.warn_shared_textrel = TRUE;
1352 break;
1353 case OPTION_WARN_ALTERNATE_EM:
1354 link_info.warn_alternate_em = TRUE;
1355 break;
1356 case OPTION_WHOLE_ARCHIVE:
1357 input_flags.whole_archive = TRUE;
1358 break;
1359 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC:
1360 input_flags.add_DT_NEEDED_for_dynamic = TRUE;
1361 break;
1362 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC:
1363 input_flags.add_DT_NEEDED_for_dynamic = FALSE;
1364 break;
1365 case OPTION_ADD_DT_NEEDED_FOR_REGULAR:
1366 input_flags.add_DT_NEEDED_for_regular = TRUE;
1367 break;
1368 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR:
1369 input_flags.add_DT_NEEDED_for_regular = FALSE;
1370 break;
1371 case OPTION_WRAP:
1372 add_wrap (optarg);
1373 break;
1374 case OPTION_IGNORE_UNRESOLVED_SYMBOL:
1375 add_ignoresym (&link_info, optarg);
1376 break;
1377 case OPTION_DISCARD_NONE:
1378 link_info.discard = discard_none;
1379 break;
1380 case 'X':
1381 link_info.discard = discard_l;
1382 break;
1383 case 'x':
1384 link_info.discard = discard_all;
1385 break;
1386 case 'Y':
1387 if (CONST_STRNEQ (optarg, "P,"))
1388 optarg += 2;
1389 if (default_dirlist != NULL)
1390 free (default_dirlist);
1391 default_dirlist = xstrdup (optarg);
1392 break;
1393 case 'y':
1394 add_ysym (optarg);
1395 break;
1396 case OPTION_SPARE_DYNAMIC_TAGS:
1397 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1398 break;
1399 case OPTION_SPLIT_BY_RELOC:
1400 if (optarg != NULL)
1401 config.split_by_reloc = strtoul (optarg, NULL, 0);
1402 else
1403 config.split_by_reloc = 32768;
1404 break;
1405 case OPTION_SPLIT_BY_FILE:
1406 if (optarg != NULL)
1407 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1408 else
1409 config.split_by_file = 1;
1410 break;
1411 case OPTION_CHECK_SECTIONS:
1412 command_line.check_section_addresses = 1;
1413 break;
1414 case OPTION_NO_CHECK_SECTIONS:
1415 command_line.check_section_addresses = 0;
1416 break;
1417 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1418 command_line.accept_unknown_input_arch = TRUE;
1419 break;
1420 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1421 command_line.accept_unknown_input_arch = FALSE;
1422 break;
1423 case '(':
1424 lang_enter_group ();
1425 ingroup++;
1426 break;
1427 case ')':
1428 if (! ingroup)
1429 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1430
1431 lang_leave_group ();
1432 ingroup--;
1433 break;
1434
1435 case OPTION_INIT:
1436 link_info.init_function = optarg;
1437 break;
1438
1439 case OPTION_FINI:
1440 link_info.fini_function = optarg;
1441 break;
1442
1443 case OPTION_REDUCE_MEMORY_OVERHEADS:
1444 link_info.reduce_memory_overheads = TRUE;
1445 if (config.hash_table_size == 0)
1446 config.hash_table_size = 1021;
1447 break;
1448
1449 case OPTION_HASH_SIZE:
1450 {
1451 bfd_size_type new_size;
1452
1453 new_size = strtoul (optarg, NULL, 0);
1454 if (new_size)
1455 config.hash_table_size = new_size;
1456 else
1457 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1458 }
1459 break;
1460
1461 case OPTION_PUSH_STATE:
1462 input_flags.pushed = xmemdup (&input_flags,
1463 sizeof (input_flags),
1464 sizeof (input_flags));
1465 break;
1466
1467 case OPTION_POP_STATE:
1468 if (input_flags.pushed == NULL)
1469 einfo (_("%P%F: no state pushed before popping\n"));
1470 else
1471 {
1472 struct lang_input_statement_flags *oldp = input_flags.pushed;
1473 memcpy (&input_flags, oldp, sizeof (input_flags));
1474 free (oldp);
1475 }
1476 break;
1477 }
1478 }
1479
1480 if (command_line.soname && command_line.soname[0] == '\0')
1481 {
1482 einfo (_("%P: SONAME must not be empty string; ignored\n"));
1483 command_line.soname = NULL;
1484 }
1485
1486 while (ingroup)
1487 {
1488 lang_leave_group ();
1489 ingroup--;
1490 }
1491
1492 if (default_dirlist != NULL)
1493 {
1494 set_default_dirlist (default_dirlist);
1495 free (default_dirlist);
1496 }
1497
1498 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1499 /* FIXME: Should we allow emulations a chance to set this ? */
1500 link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1501
1502 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1503 /* FIXME: Should we allow emulations a chance to set this ? */
1504 link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1505
1506 if (link_info.relocatable)
1507 {
1508 if (command_line.check_section_addresses < 0)
1509 command_line.check_section_addresses = 0;
1510 if (link_info.shared)
1511 einfo (_("%P%F: -r and -shared may not be used together\n"));
1512 }
1513
1514 /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data,
1515 --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and
1516 --dynamic-list FILE. -Bsymbolic and -Bsymbolic-functions are
1517 for shared libraries. -Bsymbolic overrides all others and vice
1518 versa. */
1519 switch (command_line.symbolic)
1520 {
1521 case symbolic_unset:
1522 break;
1523 case symbolic:
1524 /* -Bsymbolic is for shared library only. */
1525 if (link_info.shared)
1526 {
1527 link_info.symbolic = TRUE;
1528 /* Should we free the unused memory? */
1529 link_info.dynamic_list = NULL;
1530 command_line.dynamic_list = dynamic_list_unset;
1531 }
1532 break;
1533 case symbolic_functions:
1534 /* -Bsymbolic-functions is for shared library only. */
1535 if (link_info.shared)
1536 command_line.dynamic_list = dynamic_list_data;
1537 break;
1538 }
1539
1540 switch (command_line.dynamic_list)
1541 {
1542 case dynamic_list_unset:
1543 break;
1544 case dynamic_list_data:
1545 link_info.dynamic_data = TRUE;
1546 case dynamic_list:
1547 link_info.dynamic = TRUE;
1548 break;
1549 }
1550
1551 if (! link_info.shared)
1552 {
1553 if (command_line.filter_shlib)
1554 einfo (_("%P%F: -F may not be used without -shared\n"));
1555 if (command_line.auxiliary_filters)
1556 einfo (_("%P%F: -f may not be used without -shared\n"));
1557 }
1558
1559 if (! link_info.shared || link_info.pie)
1560 link_info.executable = TRUE;
1561
1562 /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
1563 don't see how else this can be handled, since in this case we
1564 must preserve all externally visible symbols. */
1565 if (link_info.relocatable && link_info.strip == strip_all)
1566 {
1567 link_info.strip = strip_debugger;
1568 if (link_info.discard == discard_sec_merge)
1569 link_info.discard = discard_all;
1570 }
1571 }
1572
1573 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1574 library search path. */
1575
1576 static void
1577 set_default_dirlist (char *dirlist_ptr)
1578 {
1579 char *p;
1580
1581 while (1)
1582 {
1583 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1584 if (p != NULL)
1585 *p = '\0';
1586 if (*dirlist_ptr != '\0')
1587 ldfile_add_library_path (dirlist_ptr, TRUE);
1588 if (p == NULL)
1589 break;
1590 dirlist_ptr = p + 1;
1591 }
1592 }
1593
1594 static void
1595 set_section_start (char *sect, char *valstr)
1596 {
1597 const char *end;
1598 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1599 if (*end)
1600 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1601 lang_section_start (sect, exp_intop (val), NULL);
1602 }
1603
1604 static void
1605 set_segment_start (const char *section, char *valstr)
1606 {
1607 const char *name;
1608 const char *end;
1609 segment_type *seg;
1610
1611 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1612 if (*end)
1613 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1614 /* If we already have an entry for this segment, update the existing
1615 value. */
1616 name = section + 1;
1617 for (seg = segments; seg; seg = seg->next)
1618 if (strcmp (seg->name, name) == 0)
1619 {
1620 seg->value = val;
1621 return;
1622 }
1623 /* There was no existing value so we must create a new segment
1624 entry. */
1625 seg = (segment_type *) stat_alloc (sizeof (*seg));
1626 seg->name = name;
1627 seg->value = val;
1628 seg->used = FALSE;
1629 /* Add it to the linked list of segments. */
1630 seg->next = segments;
1631 segments = seg;
1632 /* Historically, -Ttext and friends set the base address of a
1633 particular section. For backwards compatibility, we still do
1634 that. If a SEGMENT_START directive is seen, the section address
1635 assignment will be disabled. */
1636 lang_section_start (section, exp_intop (val), seg);
1637 }
1638
1639 \f
1640 /* Print help messages for the options. */
1641
1642 static void
1643 help (void)
1644 {
1645 unsigned i;
1646 const char **targets, **pp;
1647 int len;
1648
1649 printf (_("Usage: %s [options] file...\n"), program_name);
1650
1651 printf (_("Options:\n"));
1652 for (i = 0; i < OPTION_COUNT; i++)
1653 {
1654 if (ld_options[i].doc != NULL)
1655 {
1656 bfd_boolean comma;
1657 unsigned j;
1658
1659 printf (" ");
1660
1661 comma = FALSE;
1662 len = 2;
1663
1664 j = i;
1665 do
1666 {
1667 if (ld_options[j].shortopt != '\0'
1668 && ld_options[j].control != NO_HELP)
1669 {
1670 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1671 len += (comma ? 2 : 0) + 2;
1672 if (ld_options[j].arg != NULL)
1673 {
1674 if (ld_options[j].opt.has_arg != optional_argument)
1675 {
1676 printf (" ");
1677 ++len;
1678 }
1679 printf ("%s", _(ld_options[j].arg));
1680 len += strlen (_(ld_options[j].arg));
1681 }
1682 comma = TRUE;
1683 }
1684 ++j;
1685 }
1686 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1687
1688 j = i;
1689 do
1690 {
1691 if (ld_options[j].opt.name != NULL
1692 && ld_options[j].control != NO_HELP)
1693 {
1694 int two_dashes =
1695 (ld_options[j].control == TWO_DASHES
1696 || ld_options[j].control == EXACTLY_TWO_DASHES);
1697
1698 printf ("%s-%s%s",
1699 comma ? ", " : "",
1700 two_dashes ? "-" : "",
1701 ld_options[j].opt.name);
1702 len += ((comma ? 2 : 0)
1703 + 1
1704 + (two_dashes ? 1 : 0)
1705 + strlen (ld_options[j].opt.name));
1706 if (ld_options[j].arg != NULL)
1707 {
1708 printf (" %s", _(ld_options[j].arg));
1709 len += 1 + strlen (_(ld_options[j].arg));
1710 }
1711 comma = TRUE;
1712 }
1713 ++j;
1714 }
1715 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1716
1717 if (len >= 30)
1718 {
1719 printf ("\n");
1720 len = 0;
1721 }
1722
1723 for (; len < 30; len++)
1724 putchar (' ');
1725
1726 printf ("%s\n", _(ld_options[i].doc));
1727 }
1728 }
1729 printf (_(" @FILE"));
1730 for (len = strlen (" @FILE"); len < 30; len++)
1731 putchar (' ');
1732 printf (_("Read options from FILE\n"));
1733
1734 /* Note: Various tools (such as libtool) depend upon the
1735 format of the listings below - do not change them. */
1736 /* xgettext:c-format */
1737 printf (_("%s: supported targets:"), program_name);
1738 targets = bfd_target_list ();
1739 for (pp = targets; *pp != NULL; pp++)
1740 printf (" %s", *pp);
1741 free (targets);
1742 printf ("\n");
1743
1744 /* xgettext:c-format */
1745 printf (_("%s: supported emulations: "), program_name);
1746 ldemul_list_emulations (stdout);
1747 printf ("\n");
1748
1749 /* xgettext:c-format */
1750 printf (_("%s: emulation specific options:\n"), program_name);
1751 ldemul_list_emulation_options (stdout);
1752 printf ("\n");
1753
1754 if (REPORT_BUGS_TO[0])
1755 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
1756 }
DragonFly BSD