1 /* Parse options for the GNU linker.
2 Copyright (C) 1991-2021 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 "filenames.h"
26 #include <stdio.h>
27 #include <string.h>
28 #include <errno.h>
29 #include "safe-ctype.h"
30 #include "getopt.h"
31 #include "bfdlink.h"
32 #include "ctf-api.h"
33 #include "ld.h"
34 #include "ldmain.h"
35 #include "ldmisc.h"
36 #include "ldexp.h"
37 #include "ldlang.h"
38 #include <ldgram.h>
39 #include "ldlex.h"
40 #include "ldfile.h"
41 #include "ldver.h"
42 #include "ldemul.h"
43 #include "demangle.h"
44 #if BFD_SUPPORTS_PLUGINS
45 #include "plugin.h"
46 #endif /* BFD_SUPPORTS_PLUGINS */
47
48 #ifndef PATH_SEPARATOR
49 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
50 #define PATH_SEPARATOR ';'
51 #else
52 #define PATH_SEPARATOR ':'
53 #endif
54 #endif
55
56 /* Somewhere above, sys/stat.h got included . . . . */
57 #if !defined(S_ISDIR) && defined(S_IFDIR)
58 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
59 #endif
60
61 static void set_default_dirlist (char *);
62 static void set_section_start (char *, char *);
63 static void set_segment_start (const char *, char *);
64 static void help (void);
65
66 /* The long options. This structure is used for both the option
67 parsing and the help text. */
68
69 enum control_enum {
70 /* Use one dash before long option name. */
71 ONE_DASH = 1,
72 /* Use two dashes before long option name. */
73 TWO_DASHES = 2,
74 /* Only accept two dashes before the long option name.
75 This is an overloading of the use of this enum, since originally it
76 was only intended to tell the --help display function how to display
77 the long option name. This feature was added in order to resolve
78 the confusion about the -omagic command line switch. Is it setting
79 the output file name to "magic" or is it setting the NMAGIC flag on
80 the output ? It has been decided that it is setting the output file
81 name, and that if you want to set the NMAGIC flag you should use -N
82 or --omagic. */
83 EXACTLY_TWO_DASHES,
84 /* Don't mention this option in --help output. */
85 NO_HELP
86 };
87
88 struct ld_option
89 {
90 /* The long option information. */
91 struct option opt;
92 /* The short option with the same meaning ('\0' if none). */
93 char shortopt;
94 /* The name of the argument (NULL if none). */
95 const char *arg;
96 /* The documentation string. If this is NULL, this is a synonym for
97 the previous option. */
98 const char *doc;
99 enum control_enum control;
100 };
101
102 static const struct ld_option ld_options[] =
103 {
104 { {NULL, required_argument, NULL, '\0'},
105 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
106 ONE_DASH },
107 { {"architecture", required_argument, NULL, 'A'},
108 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
109 { {"format", required_argument, NULL, 'b'},
110 'b', N_("TARGET"), N_("Specify target for following input files"),
111 TWO_DASHES },
112 { {"mri-script", required_argument, NULL, 'c'},
113 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
114 { {"dc", no_argument, NULL, 'd'},
115 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
116 { {"dp", no_argument, NULL, 'd'},
117 '\0', NULL, NULL, ONE_DASH },
118 { {"dependency-file", required_argument, NULL, OPTION_DEPENDENCY_FILE},
119 '\0', N_("FILE"), N_("Write dependency file"), TWO_DASHES },
120 { {"force-group-allocation", no_argument, NULL,
121 OPTION_FORCE_GROUP_ALLOCATION},
122 '\0', NULL, N_("Force group members out of groups"), TWO_DASHES },
123 { {"entry", required_argument, NULL, 'e'},
124 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
125 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
126 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
127 { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
128 '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
129 { {"enable-non-contiguous-regions", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS},
130 '\0', NULL, N_("Enable support of non-contiguous memory regions"), TWO_DASHES },
131 { {"enable-non-contiguous-regions-warnings", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS},
132 '\0', NULL, N_("Enable warnings when --enable-non-contiguous-regions may cause unexpected behaviour"), TWO_DASHES },
133 { {"EB", no_argument, NULL, OPTION_EB},
134 '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
135 { {"EL", no_argument, NULL, OPTION_EL},
136 '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
137 { {"auxiliary", required_argument, NULL, 'f'},
138 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
139 TWO_DASHES },
140 { {"filter", required_argument, NULL, 'F'},
141 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
142 TWO_DASHES },
143 { {NULL, no_argument, NULL, '\0'},
144 'g', NULL, N_("Ignored"), ONE_DASH },
145 { {"gpsize", required_argument, NULL, 'G'},
146 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
147 TWO_DASHES },
148 { {"soname", required_argument, NULL, OPTION_SONAME},
149 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
150 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
151 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
152 TWO_DASHES },
153 { {"no-dynamic-linker", no_argument, NULL, OPTION_NO_DYNAMIC_LINKER},
154 '\0', NULL, N_("Produce an executable with no program interpreter header"),
155 TWO_DASHES },
156 { {"library", required_argument, NULL, 'l'},
157 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
158 { {"library-path", required_argument, NULL, 'L'},
159 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
160 TWO_DASHES },
161 { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
162 '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
163 { {NULL, required_argument, NULL, '\0'},
164 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
165 { {"print-map", no_argument, NULL, 'M'},
166 'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
167 { {"nmagic", no_argument, NULL, 'n'},
168 'n', NULL, N_("Do not page align data"), TWO_DASHES },
169 { {"omagic", no_argument, NULL, 'N'},
170 'N', NULL, N_("Do not page align data, do not make text readonly"),
171 EXACTLY_TWO_DASHES },
172 { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
173 '\0', NULL, N_("Page align data, make text readonly"),
174 EXACTLY_TWO_DASHES },
175 { {"output", required_argument, NULL, 'o'},
176 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
177 { {NULL, required_argument, NULL, '\0'},
178 'O', NULL, N_("Optimize output file"), ONE_DASH },
179 { {"out-implib", required_argument, NULL, OPTION_OUT_IMPLIB},
180 '\0', N_("FILE"), N_("Generate import library"), TWO_DASHES },
181 #if BFD_SUPPORTS_PLUGINS
182 { {"plugin", required_argument, NULL, OPTION_PLUGIN},
183 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH },
184 { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT},
185 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH },
186 { {"flto", optional_argument, NULL, OPTION_IGNORE},
187 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
188 ONE_DASH },
189 { {"flto-partition=", required_argument, NULL, OPTION_IGNORE},
190 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
191 ONE_DASH },
192 #else
193 { {"plugin", required_argument, NULL, OPTION_IGNORE},
194 '\0', N_("PLUGIN"), N_("Load named plugin (ignored)"), ONE_DASH },
195 { {"plugin-opt", required_argument, NULL, OPTION_IGNORE},
196 '\0', N_("ARG"), N_("Send arg to last-loaded plugin (ignored)"), ONE_DASH },
197 #endif /* BFD_SUPPORTS_PLUGINS */
198 { {"fuse-ld=", required_argument, NULL, OPTION_IGNORE},
199 '\0', NULL, N_("Ignored for GCC linker option compatibility"),
200 ONE_DASH },
201 { {"map-whole-files", optional_argument, NULL, OPTION_IGNORE},
202 '\0', NULL, N_("Ignored for gold option compatibility"),
203 TWO_DASHES },
204 { {"no-map-whole-files", optional_argument, NULL, OPTION_IGNORE},
205 '\0', NULL, N_("Ignored for gold option compatibility"),
206 TWO_DASHES },
207 { {"Qy", no_argument, NULL, OPTION_IGNORE},
208 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
209 { {"emit-relocs", no_argument, NULL, 'q'},
210 'q', NULL, "Generate relocations in final output", TWO_DASHES },
211 { {"relocatable", no_argument, NULL, 'r'},
212 'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
213 { {NULL, no_argument, NULL, '\0'},
214 'i', NULL, NULL, ONE_DASH },
215 { {"just-symbols", required_argument, NULL, 'R'},
216 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
217 TWO_DASHES },
218 { {"strip-all", no_argument, NULL, 's'},
219 's', NULL, N_("Strip all symbols"), TWO_DASHES },
220 { {"strip-debug", no_argument, NULL, 'S'},
221 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
222 { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
223 '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
224 { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
225 '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
226 { {"trace", no_argument, NULL, 't'},
227 't', NULL, N_("Trace file opens"), TWO_DASHES },
228 { {"script", required_argument, NULL, 'T'},
229 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
230 { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
231 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
232 { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
233 '\0', NULL, NULL, ONE_DASH },
234 { {"undefined", required_argument, NULL, 'u'},
235 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
236 TWO_DASHES },
237 { {"require-defined", required_argument, NULL, OPTION_REQUIRE_DEFINED_SYMBOL},
238 '\0', N_("SYMBOL"), N_("Require SYMBOL be defined in the final output"),
239 TWO_DASHES },
240 { {"unique", optional_argument, NULL, OPTION_UNIQUE},
241 '\0', N_("[=SECTION]"),
242 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
243 { {"Ur", no_argument, NULL, OPTION_UR},
244 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
245 { {"version", no_argument, NULL, OPTION_VERSION},
246 'v', NULL, N_("Print version information"), TWO_DASHES },
247 { {NULL, no_argument, NULL, '\0'},
248 'V', NULL, N_("Print version and emulation information"), ONE_DASH },
249 { {"discard-all", no_argument, NULL, 'x'},
250 'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
251 { {"discard-locals", no_argument, NULL, 'X'},
252 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
253 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
254 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
255 { {"trace-symbol", required_argument, NULL, 'y'},
256 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
257 { {NULL, required_argument, NULL, '\0'},
258 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
259 ONE_DASH },
260 { {"start-group", no_argument, NULL, '('},
261 '(', NULL, N_("Start a group"), TWO_DASHES },
262 { {"end-group", no_argument, NULL, ')'},
263 ')', NULL, N_("End a group"), TWO_DASHES },
264 { {"accept-unknown-input-arch", no_argument, NULL,
265 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
266 '\0', NULL,
267 N_("Accept input files whose architecture cannot be determined"),
268 TWO_DASHES },
269 { {"no-accept-unknown-input-arch", no_argument, NULL,
270 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
271 '\0', NULL, N_("Reject input files whose architecture is unknown"),
272 TWO_DASHES },
273
274 /* The next two options are deprecated because of their similarity to
275 --as-needed and --no-as-needed. They have been replaced by
276 --copy-dt-needed-entries and --no-copy-dt-needed-entries. */
277 { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
278 '\0', NULL, NULL, NO_HELP },
279 { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
280 '\0', NULL, NULL, NO_HELP },
281
282 { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR},
283 '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
284 TWO_DASHES },
285 { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR},
286 '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
287 " the command line"),
288 TWO_DASHES },
289 { {"assert", required_argument, NULL, OPTION_ASSERT},
290 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
291 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
292 '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
293 { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
294 '\0', NULL, NULL, ONE_DASH },
295 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
296 '\0', NULL, NULL, ONE_DASH },
297 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
298 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
299 { {"dn", no_argument, NULL, OPTION_NON_SHARED},
300 '\0', NULL, NULL, ONE_DASH },
301 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
302 '\0', NULL, NULL, ONE_DASH },
303 { {"static", no_argument, NULL, OPTION_NON_SHARED},
304 '\0', NULL, NULL, ONE_DASH },
305 { {"Bno-symbolic", no_argument, NULL, OPTION_NO_SYMBOLIC},
306 '\0', NULL, N_("Don't bind global references locally"), ONE_DASH },
307 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
308 '\0', NULL, N_("Bind global references locally"), ONE_DASH },
309 { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
310 '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
311 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
312 '\0', NULL, N_("Check section addresses for overlaps (default)"),
313 TWO_DASHES },
314 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
315 '\0', NULL, N_("Do not check section addresses for overlaps"),
316 TWO_DASHES },
317 { {"copy-dt-needed-entries", no_argument, NULL,
318 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
319 '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
320 TWO_DASHES },
321 { {"no-copy-dt-needed-entries", no_argument, NULL,
322 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
323 '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
324 TWO_DASHES },
325
326 { {"cref", no_argument, NULL, OPTION_CREF},
327 '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
328 { {"defsym", required_argument, NULL, OPTION_DEFSYM},
329 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
330 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
331 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
332 TWO_DASHES },
333 { {"disable-multiple-abs-defs", no_argument, NULL,
334 OPTION_DISABLE_MULTIPLE_DEFS_ABS},
335 '\0', NULL, N_("Do not allow multiple definitions with symbols included\n"
336 " in filename invoked by -R or --just-symbols"),
337 TWO_DASHES},
338 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
339 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
340 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
341 '\0', NULL, N_("Treat warnings as errors"),
342 TWO_DASHES },
343 { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
344 '\0', NULL, N_("Do not treat warnings as errors (default)"),
345 TWO_DASHES },
346 { {"fini", required_argument, NULL, OPTION_FINI},
347 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
348 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
349 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
350 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
351 '\0', NULL, N_("Remove unused sections (on some targets)"),
352 TWO_DASHES },
353 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
354 '\0', NULL, N_("Don't remove unused sections (default)"),
355 TWO_DASHES },
356 { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
357 '\0', NULL, N_("List removed unused sections on stderr"),
358 TWO_DASHES },
359 { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
360 '\0', NULL, N_("Do not list removed unused sections"),
361 TWO_DASHES },
362 { {"gc-keep-exported", no_argument, NULL, OPTION_GC_KEEP_EXPORTED},
363 '\0', NULL, N_("Keep exported symbols when removing unused sections"),
364 TWO_DASHES },
365 { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
366 '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
367 TWO_DASHES },
368 { {"help", no_argument, NULL, OPTION_HELP},
369 '\0', NULL, N_("Print option help"), TWO_DASHES },
370 { {"init", required_argument, NULL, OPTION_INIT},
371 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
372 { {"Map", required_argument, NULL, OPTION_MAP},
373 '\0', N_("FILE/DIR"), N_("Write a linker map to FILE or DIR/<outputname>.map"), ONE_DASH },
374 { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
375 '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
376 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
377 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
378 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
379 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
380 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
381 '\0', NULL, N_("Do not allow unresolved references in object files"),
382 TWO_DASHES },
383 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
384 '\0', NULL, N_("Allow unresolved references in shared libraries"),
385 TWO_DASHES },
386 { {"no-allow-shlib-undefined", no_argument, NULL,
387 OPTION_NO_ALLOW_SHLIB_UNDEFINED},
388 '\0', NULL, N_("Do not allow unresolved references in shared libs"),
389 TWO_DASHES },
390 { {"allow-multiple-definition", no_argument, NULL,
391 OPTION_ALLOW_MULTIPLE_DEFINITION},
392 '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
393 #if SUPPORT_ERROR_HANDLING_SCRIPT
394 { {"error-handling-script", required_argument, NULL,
395 OPTION_ERROR_HANDLING_SCRIPT},
396 '\0', N_("SCRIPT"), N_("Provide a script to help with undefined symbol errors"), TWO_DASHES},
397 #endif
398 { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
399 '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
400 { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
401 '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
402 { {"default-imported-symver", no_argument, NULL,
403 OPTION_DEFAULT_IMPORTED_SYMVER},
404 '\0', NULL, N_("Create default symbol version for imported symbols"),
405 TWO_DASHES },
406 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
407 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
408 { {"no-warn-search-mismatch", no_argument, NULL,
409 OPTION_NO_WARN_SEARCH_MISMATCH},
410 '\0', NULL, N_("Don't warn on finding an incompatible library"),
411 TWO_DASHES},
412 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
413 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
414 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
415 '\0', NULL, N_("Create an output file even if errors occur"),
416 TWO_DASHES },
417 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
418 '\0', NULL, NULL, NO_HELP },
419 { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
420 '\0', NULL, N_("Only use library directories specified on\n"
421 " the command line"),
422 ONE_DASH },
423 { {"oformat", required_argument, NULL, OPTION_OFORMAT},
424 '\0', N_("TARGET"), N_("Specify target of output file"),
425 EXACTLY_TWO_DASHES },
426 { {"print-output-format", no_argument, NULL, OPTION_PRINT_OUTPUT_FORMAT},
427 '\0', NULL, N_("Print default output format"), TWO_DASHES },
428 { {"print-sysroot", no_argument, NULL, OPTION_PRINT_SYSROOT},
429 '\0', NULL, N_("Print current sysroot"), TWO_DASHES },
430 { {"qmagic", no_argument, NULL, OPTION_IGNORE},
431 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
432 { {"reduce-memory-overheads", no_argument, NULL,
433 OPTION_REDUCE_MEMORY_OVERHEADS},
434 '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
435 TWO_DASHES },
436 { {"relax", no_argument, NULL, OPTION_RELAX},
437 '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES },
438 { {"no-relax", no_argument, NULL, OPTION_NO_RELAX},
439 '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES },
440 { {"retain-symbols-file", required_argument, NULL,
441 OPTION_RETAIN_SYMBOLS_FILE},
442 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
443 { {"rpath", required_argument, NULL, OPTION_RPATH},
444 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
445 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
446 '\0', N_("PATH"), N_("Set link time shared library search path"),
447 ONE_DASH },
448 { {"shared", no_argument, NULL, OPTION_SHARED},
449 '\0', NULL, N_("Create a shared library"), ONE_DASH },
450 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
451 '\0', NULL, NULL, ONE_DASH },
452 { {"pie", no_argument, NULL, OPTION_PIE},
453 '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
454 { {"pic-executable", no_argument, NULL, OPTION_PIE},
455 '\0', NULL, NULL, TWO_DASHES },
456 { {"no-pie", no_argument, NULL, OPTION_NO_PIE},
457 '\0', NULL, N_("Create a position dependent executable (default)"), ONE_DASH },
458 { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
459 '\0', N_("[=ascending|descending]"),
460 N_("Sort common symbols by alignment [in specified order]"),
461 TWO_DASHES },
462 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
463 '\0', NULL, NULL, NO_HELP },
464 { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
465 '\0', N_("name|alignment"),
466 N_("Sort sections by name or maximum alignment"), TWO_DASHES },
467 { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
468 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
469 TWO_DASHES },
470 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
471 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
472 TWO_DASHES },
473 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
474 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
475 TWO_DASHES },
476 { {"stats", no_argument, NULL, OPTION_STATS},
477 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
478 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
479 '\0', NULL, N_("Display target specific options"), TWO_DASHES },
480 { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
481 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
482 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
483 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
484 { {"section-start", required_argument, NULL, OPTION_SECTION_START},
485 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
486 TWO_DASHES },
487 { {"Tbss", required_argument, NULL, OPTION_TBSS},
488 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
489 { {"Tdata", required_argument, NULL, OPTION_TDATA},
490 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
491 { {"Ttext", required_argument, NULL, OPTION_TTEXT},
492 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
493 { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT},
494 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
495 { {"Trodata-segment", required_argument, NULL, OPTION_TRODATA_SEGMENT},
496 '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH },
497 { {"Tldata-segment", required_argument, NULL, OPTION_TLDATA_SEGMENT},
498 '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH },
499 { {"unresolved-symbols=<method>", required_argument, NULL,
500 OPTION_UNRESOLVED_SYMBOLS},
501 '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n"
502 " ignore-all, report-all, ignore-in-object-files,\n"
503 " ignore-in-shared-libs"),
504 TWO_DASHES },
505 { {"verbose", optional_argument, NULL, OPTION_VERBOSE},
506 '\0', N_("[=NUMBER]"),
507 N_("Output lots of information during link"), TWO_DASHES },
508 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
509 '\0', NULL, NULL, NO_HELP },
510 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
511 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
512 { {"version-exports-section", required_argument, NULL,
513 OPTION_VERSION_EXPORTS_SECTION },
514 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
515 " SYMBOL as the version."),
516 TWO_DASHES },
517 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
518 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
519 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
520 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
521 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
522 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
523 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
524 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
525 { {"export-dynamic-symbol", required_argument, NULL, OPTION_EXPORT_DYNAMIC_SYMBOL},
526 '\0', N_("SYMBOL"), N_("Export the specified symbol"), EXACTLY_TWO_DASHES },
527 { {"export-dynamic-symbol-list", required_argument, NULL, OPTION_EXPORT_DYNAMIC_SYMBOL_LIST},
528 '\0', N_("FILE"), N_("Read export dynamic symbol list"), EXACTLY_TWO_DASHES },
529 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
530 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
531 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
532 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
533 TWO_DASHES },
534 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
535 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
536 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
537 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
538 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
539 '\0', NULL, N_("Warn if start of section changes due to alignment"),
540 TWO_DASHES },
541 { {"warn-textrel", no_argument, NULL, OPTION_WARN_TEXTREL},
542 '\0', NULL,
543 #if DEFAULT_LD_TEXTREL_CHECK_WARNING
544 N_("Warn if output has DT_TEXTREL (default)"),
545 #else
546 N_("Warn if output has DT_TEXTREL"),
547 #endif
548 TWO_DASHES },
549 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_TEXTREL},
550 '\0', NULL, NULL, NO_HELP },
551 { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
552 '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
553 TWO_DASHES },
554 { {"warn-unresolved-symbols", no_argument, NULL,
555 OPTION_WARN_UNRESOLVED_SYMBOLS},
556 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
557 { {"error-unresolved-symbols", no_argument, NULL,
558 OPTION_ERROR_UNRESOLVED_SYMBOLS},
559 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
560 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
561 '\0', NULL, N_("Include all objects from following archives"),
562 TWO_DASHES },
563 { {"wrap", required_argument, NULL, OPTION_WRAP},
564 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
565 { {"ignore-unresolved-symbol", required_argument, NULL,
566 OPTION_IGNORE_UNRESOLVED_SYMBOL},
567 '\0', N_("SYMBOL"),
568 N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES },
569 { {"push-state", no_argument, NULL, OPTION_PUSH_STATE},
570 '\0', NULL, N_("Push state of flags governing input file handling"),
571 TWO_DASHES },
572 { {"pop-state", no_argument, NULL, OPTION_POP_STATE},
573 '\0', NULL, N_("Pop state of flags governing input file handling"),
574 TWO_DASHES },
575 { {"print-memory-usage", no_argument, NULL, OPTION_PRINT_MEMORY_USAGE},
576 '\0', NULL, N_("Report target memory usage"), TWO_DASHES },
577 { {"orphan-handling", required_argument, NULL, OPTION_ORPHAN_HANDLING},
578 '\0', N_("=MODE"), N_("Control how orphan sections are handled."),
579 TWO_DASHES },
580 { {"print-map-discarded", no_argument, NULL, OPTION_PRINT_MAP_DISCARDED},
581 '\0', NULL, N_("Show discarded sections in map file output (default)"),
582 TWO_DASHES },
583 { {"no-print-map-discarded", no_argument, NULL, OPTION_NO_PRINT_MAP_DISCARDED},
584 '\0', NULL, N_("Do not show discarded sections in map file output"),
585 TWO_DASHES },
586 { {"ctf-variables", no_argument, NULL, OPTION_CTF_VARIABLES},
587 '\0', NULL, N_("Emit names and types of static variables in CTF"),
588 TWO_DASHES },
589 { {"no-ctf-variables", no_argument, NULL, OPTION_NO_CTF_VARIABLES},
590 '\0', NULL, N_("Do not emit names and types of static variables in CTF"),
591 TWO_DASHES },
592 { {"ctf-share-types=<method>", required_argument, NULL,
593 OPTION_CTF_SHARE_TYPES},
594 '\0', NULL, N_("How to share CTF types between translation units.\n"
595 " <method> is: share-unconflicted (default),\n"
596 " share-duplicated"),
597 TWO_DASHES },
598 };
599
600 #define OPTION_COUNT ARRAY_SIZE (ld_options)
601
602 void
parse_args(unsigned argc,char ** argv)603 parse_args (unsigned argc, char **argv)
604 {
605 unsigned i;
606 int is, il, irl;
607 int ingroup = 0;
608 char *default_dirlist = NULL;
609 char *shortopts;
610 struct option *longopts;
611 struct option *really_longopts;
612 int last_optind;
613 enum symbolic_enum
614 {
615 symbolic_unset = 0,
616 symbolic,
617 symbolic_functions,
618 } opt_symbolic = symbolic_unset;
619 enum dynamic_list_enum
620 {
621 dynamic_list_unset = 0,
622 dynamic_list_data,
623 dynamic_list
624 } opt_dynamic_list = dynamic_list_unset;
625 struct bfd_elf_dynamic_list *export_list = NULL;
626
627 shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2);
628 longopts = (struct option *)
629 xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
630 really_longopts = (struct option *)
631 xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
632
633 /* Starting the short option string with '-' is for programs that
634 expect options and other ARGV-elements in any order and that care about
635 the ordering of the two. We describe each non-option ARGV-element
636 as if it were the argument of an option with character code 1. */
637 shortopts[0] = '-';
638 is = 1;
639 il = 0;
640 irl = 0;
641 for (i = 0; i < OPTION_COUNT; i++)
642 {
643 if (ld_options[i].shortopt != '\0')
644 {
645 shortopts[is] = ld_options[i].shortopt;
646 ++is;
647 if (ld_options[i].opt.has_arg == required_argument
648 || ld_options[i].opt.has_arg == optional_argument)
649 {
650 shortopts[is] = ':';
651 ++is;
652 if (ld_options[i].opt.has_arg == optional_argument)
653 {
654 shortopts[is] = ':';
655 ++is;
656 }
657 }
658 }
659 if (ld_options[i].opt.name != NULL)
660 {
661 if (ld_options[i].control == EXACTLY_TWO_DASHES)
662 {
663 really_longopts[irl] = ld_options[i].opt;
664 ++irl;
665 }
666 else
667 {
668 longopts[il] = ld_options[i].opt;
669 ++il;
670 }
671 }
672 }
673 shortopts[is] = '\0';
674 longopts[il].name = NULL;
675 really_longopts[irl].name = NULL;
676
677 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
678
679 /* The -G option is ambiguous on different platforms. Sometimes it
680 specifies the largest data size to put into the small data
681 section. Sometimes it is equivalent to --shared. Unfortunately,
682 the first form takes an argument, while the second does not.
683
684 We need to permit the --shared form because on some platforms,
685 such as Solaris, gcc -shared will pass -G to the linker.
686
687 To permit either usage, we look through the argument list. If we
688 find -G not followed by a number, we change it into --shared.
689 This will work for most normal cases. */
690 for (i = 1; i < argc; i++)
691 if (strcmp (argv[i], "-G") == 0
692 && (i + 1 >= argc
693 || ! ISDIGIT (argv[i + 1][0])))
694 argv[i] = (char *) "--shared";
695
696 /* Because we permit long options to start with a single dash, and
697 we have a --library option, and the -l option is conventionally
698 used with an immediately following argument, we can have bad
699 results if somebody tries to use -l with a library whose name
700 happens to start with "ibrary", as in -li. We avoid problems by
701 simply turning -l into --library. This means that users will
702 have to use two dashes in order to use --library, which is OK
703 since that's how it is documented.
704
705 FIXME: It's possible that this problem can arise for other short
706 options as well, although the user does always have the recourse
707 of adding a space between the option and the argument. */
708 for (i = 1; i < argc; i++)
709 {
710 if (argv[i][0] == '-'
711 && argv[i][1] == 'l'
712 && argv[i][2] != '\0')
713 {
714 char *n;
715
716 n = (char *) xmalloc (strlen (argv[i]) + 20);
717 sprintf (n, "--library=%s", argv[i] + 2);
718 argv[i] = n;
719 }
720 }
721
722 last_optind = -1;
723 while (1)
724 {
725 int longind = 0;
726 int optc;
727 static unsigned int defsym_count;
728
729 /* Using last_optind lets us avoid calling ldemul_parse_args
730 multiple times on a single option, which would lead to
731 confusion in the internal static variables maintained by
732 getopt. This could otherwise happen for an argument like
733 -nx, in which the -n is parsed as a single option, and we
734 loop around to pick up the -x. */
735 if (optind != last_optind)
736 if (ldemul_parse_args (argc, argv))
737 continue;
738
739 /* getopt_long_only is like getopt_long, but '-' as well as '--'
740 can indicate a long option. */
741 opterr = 0;
742 last_optind = optind;
743 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
744 if (optc == '?')
745 {
746 optind = last_optind;
747 optc = getopt_long (argc, argv, "-", really_longopts, &longind);
748 }
749 /* Attempt to detect grouped short options, eg: "-non-start".
750 Accepting such options is error prone as it is not clear if the user
751 intended "-n -o n-start" or "--non-start". */
752 else if (longind == 0 /* This is a short option. */
753 && optc > 32 /* It is a valid option. */
754 /* The character is not the second character of argv[last_optind]. */
755 && optc != argv[last_optind][1])
756 {
757 if (optarg)
758 einfo (_("%F%P: Error: unable to disambiguate: %s (did you mean -%s ?)\n"),
759 argv[last_optind], argv[last_optind]);
760 else
761 einfo (_("%P: Warning: grouped short command line options are deprecated: %s\n"), argv[last_optind]);
762 }
763
764 if (ldemul_handle_option (optc))
765 continue;
766
767 if (optc == -1)
768 break;
769
770 switch (optc)
771 {
772 case '?':
773 {
774 /* If the last word on the command line is an option that
775 requires an argument, getopt will refuse to recognise it.
776 Try to catch such options here and issue a more helpful
777 error message than just "unrecognized option". */
778 int opt;
779
780 for (opt = ARRAY_SIZE (ld_options); opt--;)
781 if (ld_options[opt].opt.has_arg == required_argument
782 /* FIXME: There are a few short options that do not
783 have long equivalents, but which require arguments.
784 We should handle them too. */
785 && ld_options[opt].opt.name != NULL
786 && strcmp (argv[last_optind] + ld_options[opt].control, ld_options[opt].opt.name) == 0)
787 {
788 einfo (_("%P: %s: missing argument\n"), argv[last_optind]);
789 break;
790 }
791
792 if (opt == -1)
793 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
794 }
795 /* Fall through. */
796
797 default:
798 einfo (_("%F%P: use the --help option for usage information\n"));
799 break;
800
801 case 1: /* File name. */
802 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
803 break;
804
805 case OPTION_IGNORE:
806 break;
807 case 'a':
808 /* For HP/UX compatibility. Actually -a shared should mean
809 ``use only shared libraries'' but, then, we don't
810 currently support shared libraries on HP/UX anyhow. */
811 if (strcmp (optarg, "archive") == 0)
812 input_flags.dynamic = false;
813 else if (strcmp (optarg, "shared") == 0
814 || strcmp (optarg, "default") == 0)
815 input_flags.dynamic = true;
816 else
817 einfo (_("%F%P: unrecognized -a option `%s'\n"), optarg);
818 break;
819 case OPTION_ASSERT:
820 /* FIXME: We just ignore these, but we should handle them. */
821 if (strcmp (optarg, "definitions") == 0)
822 ;
823 else if (strcmp (optarg, "nodefinitions") == 0)
824 ;
825 else if (strcmp (optarg, "nosymbolic") == 0)
826 ;
827 else if (strcmp (optarg, "pure-text") == 0)
828 ;
829 else
830 einfo (_("%F%P: unrecognized -assert option `%s'\n"), optarg);
831 break;
832 case 'A':
833 ldfile_add_arch (optarg);
834 break;
835 case 'b':
836 lang_add_target (optarg);
837 break;
838 case 'c':
839 ldfile_open_command_file (optarg);
840 parser_input = input_mri_script;
841 yyparse ();
842 break;
843 case OPTION_CALL_SHARED:
844 input_flags.dynamic = true;
845 break;
846 case OPTION_NON_SHARED:
847 input_flags.dynamic = false;
848 break;
849 case OPTION_CREF:
850 command_line.cref = true;
851 link_info.notice_all = true;
852 break;
853 case 'd':
854 command_line.force_common_definition = true;
855 break;
856 case OPTION_FORCE_GROUP_ALLOCATION:
857 command_line.force_group_allocation = true;
858 break;
859 case OPTION_DEFSYM:
860 lex_string = optarg;
861 lex_redirect (optarg, "--defsym", ++defsym_count);
862 parser_input = input_defsym;
863 yyparse ();
864 lex_string = NULL;
865 break;
866 case OPTION_DEMANGLE:
867 demangling = true;
868 if (optarg != NULL)
869 {
870 enum demangling_styles style;
871
872 style = cplus_demangle_name_to_style (optarg);
873 if (style == unknown_demangling)
874 einfo (_("%F%P: unknown demangling style `%s'\n"),
875 optarg);
876
877 cplus_demangle_set_style (style);
878 }
879 break;
880 case 'I': /* Used on Solaris. */
881 case OPTION_DYNAMIC_LINKER:
882 command_line.interpreter = optarg;
883 link_info.nointerp = 0;
884 break;
885 case OPTION_NO_DYNAMIC_LINKER:
886 link_info.nointerp = 1;
887 break;
888 case OPTION_SYSROOT:
889 /* Already handled in ldmain.c. */
890 break;
891 case OPTION_EB:
892 command_line.endian = ENDIAN_BIG;
893 break;
894 case OPTION_EL:
895 command_line.endian = ENDIAN_LITTLE;
896 break;
897 case OPTION_EMBEDDED_RELOCS:
898 command_line.embedded_relocs = true;
899 break;
900 case OPTION_EXPORT_DYNAMIC:
901 case 'E': /* HP/UX compatibility. */
902 link_info.export_dynamic = true;
903 break;
904 case OPTION_NO_EXPORT_DYNAMIC:
905 link_info.export_dynamic = false;
906 break;
907 case OPTION_NON_CONTIGUOUS_REGIONS:
908 link_info.non_contiguous_regions = true;
909 break;
910 case OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS:
911 link_info.non_contiguous_regions_warnings = true;
912 break;
913 case 'e':
914 lang_add_entry (optarg, true);
915 break;
916 case 'f':
917 if (command_line.auxiliary_filters == NULL)
918 {
919 command_line.auxiliary_filters = (char **)
920 xmalloc (2 * sizeof (char *));
921 command_line.auxiliary_filters[0] = optarg;
922 command_line.auxiliary_filters[1] = NULL;
923 }
924 else
925 {
926 int c;
927 char **p;
928
929 c = 0;
930 for (p = command_line.auxiliary_filters; *p != NULL; p++)
931 ++c;
932 command_line.auxiliary_filters = (char **)
933 xrealloc (command_line.auxiliary_filters,
934 (c + 2) * sizeof (char *));
935 command_line.auxiliary_filters[c] = optarg;
936 command_line.auxiliary_filters[c + 1] = NULL;
937 }
938 break;
939 case 'F':
940 command_line.filter_shlib = optarg;
941 break;
942 case OPTION_FORCE_EXE_SUFFIX:
943 command_line.force_exe_suffix = true;
944 break;
945 case 'G':
946 {
947 char *end;
948 g_switch_value = strtoul (optarg, &end, 0);
949 if (*end)
950 einfo (_("%F%P: invalid number `%s'\n"), optarg);
951 }
952 break;
953 case 'g':
954 /* Ignore. */
955 break;
956 case OPTION_GC_SECTIONS:
957 link_info.gc_sections = true;
958 break;
959 case OPTION_PRINT_GC_SECTIONS:
960 link_info.print_gc_sections = true;
961 break;
962 case OPTION_GC_KEEP_EXPORTED:
963 link_info.gc_keep_exported = true;
964 break;
965 case OPTION_HELP:
966 help ();
967 xexit (0);
968 break;
969 case 'L':
970 ldfile_add_library_path (optarg, true);
971 break;
972 case 'l':
973 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
974 break;
975 case 'M':
976 config.map_filename = "-";
977 break;
978 case 'm':
979 /* Ignore. Was handled in a pre-parse. */
980 break;
981 case OPTION_MAP:
982 config.map_filename = optarg;
983 break;
984 case 'N':
985 config.text_read_only = false;
986 config.magic_demand_paged = false;
987 input_flags.dynamic = false;
988 break;
989 case OPTION_NO_OMAGIC:
990 config.text_read_only = true;
991 config.magic_demand_paged = true;
992 /* NB/ Does not set input_flags.dynamic to TRUE.
993 Use --call-shared or -Bdynamic for this. */
994 break;
995 case 'n':
996 config.text_read_only = true;
997 config.magic_demand_paged = false;
998 input_flags.dynamic = false;
999 break;
1000 case OPTION_NO_DEFINE_COMMON:
1001 link_info.inhibit_common_definition = true;
1002 break;
1003 case OPTION_NO_DEMANGLE:
1004 demangling = false;
1005 break;
1006 case OPTION_NO_GC_SECTIONS:
1007 link_info.gc_sections = false;
1008 break;
1009 case OPTION_NO_PRINT_GC_SECTIONS:
1010 link_info.print_gc_sections = false;
1011 break;
1012 case OPTION_NO_KEEP_MEMORY:
1013 link_info.keep_memory = false;
1014 break;
1015 case OPTION_NO_UNDEFINED:
1016 link_info.unresolved_syms_in_objects = RM_DIAGNOSE;
1017 break;
1018 case OPTION_ALLOW_SHLIB_UNDEFINED:
1019 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1020 break;
1021 case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
1022 link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE;
1023 break;
1024 case OPTION_UNRESOLVED_SYMBOLS:
1025 if (strcmp (optarg, "ignore-all") == 0)
1026 {
1027 link_info.unresolved_syms_in_objects = RM_IGNORE;
1028 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1029 }
1030 else if (strcmp (optarg, "report-all") == 0)
1031 {
1032 link_info.unresolved_syms_in_objects = RM_DIAGNOSE;
1033 link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE;
1034 }
1035 else if (strcmp (optarg, "ignore-in-object-files") == 0)
1036 {
1037 link_info.unresolved_syms_in_objects = RM_IGNORE;
1038 link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE;
1039 }
1040 else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
1041 {
1042 link_info.unresolved_syms_in_objects = RM_DIAGNOSE;
1043 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1044 }
1045 else
1046 einfo (_("%F%P: bad --unresolved-symbols option: %s\n"), optarg);
1047 break;
1048 case OPTION_WARN_UNRESOLVED_SYMBOLS:
1049 link_info.warn_unresolved_syms = true;
1050 break;
1051 case OPTION_ERROR_UNRESOLVED_SYMBOLS:
1052 link_info.warn_unresolved_syms = false;
1053 break;
1054 case OPTION_ALLOW_MULTIPLE_DEFINITION:
1055 link_info.allow_multiple_definition = true;
1056 break;
1057
1058 #if SUPPORT_ERROR_HANDLING_SCRIPT
1059 case OPTION_ERROR_HANDLING_SCRIPT:
1060 /* FIXME: Should we warn if the script is being overridden by another ?
1061 Or maybe they should be chained together ? */
1062 error_handling_script = optarg;
1063 break;
1064 #endif
1065
1066 case OPTION_NO_UNDEFINED_VERSION:
1067 link_info.allow_undefined_version = false;
1068 break;
1069 case OPTION_DEFAULT_SYMVER:
1070 link_info.create_default_symver = true;
1071 break;
1072 case OPTION_DEFAULT_IMPORTED_SYMVER:
1073 link_info.default_imported_symver = true;
1074 break;
1075 case OPTION_NO_WARN_MISMATCH:
1076 command_line.warn_mismatch = false;
1077 break;
1078 case OPTION_NO_WARN_SEARCH_MISMATCH:
1079 command_line.warn_search_mismatch = false;
1080 break;
1081 case OPTION_NOINHIBIT_EXEC:
1082 force_make_executable = true;
1083 break;
1084 case OPTION_NOSTDLIB:
1085 config.only_cmd_line_lib_dirs = true;
1086 break;
1087 case OPTION_NO_WHOLE_ARCHIVE:
1088 input_flags.whole_archive = false;
1089 break;
1090 case 'O':
1091 /* FIXME "-O<non-digits> <value>" used to set the address of
1092 section <non-digits>. Was this for compatibility with
1093 something, or can we create a new option to do that
1094 (with a syntax similar to -defsym)?
1095 getopt can't handle two args to an option without kludges. */
1096
1097 /* Enable optimizations of output files. */
1098 link_info.optimize = strtoul (optarg, NULL, 0) != 0;
1099 break;
1100 case 'o':
1101 lang_add_output (optarg, 0);
1102 break;
1103 case OPTION_OFORMAT:
1104 lang_add_output_format (optarg, NULL, NULL, 0);
1105 break;
1106 case OPTION_OUT_IMPLIB:
1107 command_line.out_implib_filename = xstrdup (optarg);
1108 break;
1109 case OPTION_PRINT_SYSROOT:
1110 if (*ld_sysroot)
1111 puts (ld_sysroot);
1112 xexit (0);
1113 break;
1114 case OPTION_PRINT_OUTPUT_FORMAT:
1115 command_line.print_output_format = true;
1116 break;
1117 #if BFD_SUPPORTS_PLUGINS
1118 case OPTION_PLUGIN:
1119 plugin_opt_plugin (optarg);
1120 break;
1121 case OPTION_PLUGIN_OPT:
1122 if (plugin_opt_plugin_arg (optarg))
1123 einfo (_("%F%P: bad -plugin-opt option\n"));
1124 break;
1125 #endif /* BFD_SUPPORTS_PLUGINS */
1126 case 'q':
1127 link_info.emitrelocations = true;
1128 break;
1129 case 'i':
1130 case 'r':
1131 if (optind == last_optind)
1132 /* This can happen if the user put "-rpath,a" on the command
1133 line. (Or something similar. The comma is important).
1134 Getopt becomes confused and thinks that this is a -r option
1135 but it cannot parse the text after the -r so it refuses to
1136 increment the optind counter. Detect this case and issue
1137 an error message here. We cannot just make this a warning,
1138 increment optind, and continue because getopt is too confused
1139 and will seg-fault the next time around. */
1140 einfo(_("%F%P: unrecognised option: %s\n"), argv[optind]);
1141
1142 if (bfd_link_pic (&link_info))
1143 einfo (_("%F%P: -r and %s may not be used together\n"),
1144 bfd_link_dll (&link_info) ? "-shared" : "-pie");
1145
1146 link_info.type = type_relocatable;
1147 config.build_constructors = false;
1148 config.magic_demand_paged = false;
1149 config.text_read_only = false;
1150 input_flags.dynamic = false;
1151 break;
1152 case 'R':
1153 /* The GNU linker traditionally uses -R to mean to include
1154 only the symbols from a file. The Solaris linker uses -R
1155 to set the path used by the runtime linker to find
1156 libraries. This is the GNU linker -rpath argument. We
1157 try to support both simultaneously by checking the file
1158 named. If it is a directory, rather than a regular file,
1159 we assume -rpath was meant. */
1160 {
1161 struct stat s;
1162
1163 if (stat (optarg, &s) >= 0
1164 && ! S_ISDIR (s.st_mode))
1165 {
1166 lang_add_input_file (optarg,
1167 lang_input_file_is_symbols_only_enum,
1168 NULL);
1169 break;
1170 }
1171 }
1172 /* Fall through. */
1173 case OPTION_RPATH:
1174 if (command_line.rpath == NULL)
1175 command_line.rpath = xstrdup (optarg);
1176 else
1177 {
1178 size_t rpath_len = strlen (command_line.rpath);
1179 size_t optarg_len = strlen (optarg);
1180 char *buf;
1181 char *cp = command_line.rpath;
1182
1183 /* First see whether OPTARG is already in the path. */
1184 do
1185 {
1186 if (strncmp (optarg, cp, optarg_len) == 0
1187 && (cp[optarg_len] == 0
1188 || cp[optarg_len] == config.rpath_separator))
1189 /* We found it. */
1190 break;
1191
1192 /* Not yet found. */
1193 cp = strchr (cp, config.rpath_separator);
1194 if (cp != NULL)
1195 ++cp;
1196 }
1197 while (cp != NULL);
1198
1199 if (cp == NULL)
1200 {
1201 buf = (char *) xmalloc (rpath_len + optarg_len + 2);
1202 sprintf (buf, "%s%c%s", command_line.rpath,
1203 config.rpath_separator, optarg);
1204 free (command_line.rpath);
1205 command_line.rpath = buf;
1206 }
1207 }
1208 break;
1209 case OPTION_RPATH_LINK:
1210 if (command_line.rpath_link == NULL)
1211 command_line.rpath_link = xstrdup (optarg);
1212 else
1213 {
1214 char *buf;
1215
1216 buf = (char *) xmalloc (strlen (command_line.rpath_link)
1217 + strlen (optarg)
1218 + 2);
1219 sprintf (buf, "%s%c%s", command_line.rpath_link,
1220 config.rpath_separator, optarg);
1221 free (command_line.rpath_link);
1222 command_line.rpath_link = buf;
1223 }
1224 break;
1225 case OPTION_NO_RELAX:
1226 DISABLE_RELAXATION;
1227 break;
1228 case OPTION_RELAX:
1229 ENABLE_RELAXATION;
1230 break;
1231 case OPTION_RETAIN_SYMBOLS_FILE:
1232 add_keepsyms_file (optarg);
1233 break;
1234 case 'S':
1235 link_info.strip = strip_debugger;
1236 break;
1237 case 's':
1238 link_info.strip = strip_all;
1239 break;
1240 case OPTION_STRIP_DISCARDED:
1241 link_info.strip_discarded = true;
1242 break;
1243 case OPTION_NO_STRIP_DISCARDED:
1244 link_info.strip_discarded = false;
1245 break;
1246 case OPTION_DISABLE_MULTIPLE_DEFS_ABS:
1247 link_info.prohibit_multiple_definition_absolute = true;
1248 break;
1249 case OPTION_SHARED:
1250 if (config.has_shared)
1251 {
1252 if (bfd_link_relocatable (&link_info))
1253 einfo (_("%F%P: -r and %s may not be used together\n"),
1254 "-shared");
1255
1256 link_info.type = type_dll;
1257 /* When creating a shared library, the default
1258 behaviour is to ignore any unresolved references. */
1259 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1260 link_info.unresolved_syms_in_objects = RM_IGNORE;
1261 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1262 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1263 }
1264 else
1265 einfo (_("%F%P: -shared not supported\n"));
1266 break;
1267 case OPTION_NO_PIE:
1268 link_info.type = type_pde;
1269 break;
1270 case OPTION_PIE:
1271 if (config.has_shared)
1272 {
1273 if (bfd_link_relocatable (&link_info))
1274 einfo (_("%F%P: -r and %s may not be used together\n"), "-pie");
1275
1276 link_info.type = type_pie;
1277 }
1278 else
1279 einfo (_("%F%P: -pie not supported\n"));
1280 break;
1281 case 'h': /* Used on Solaris. */
1282 case OPTION_SONAME:
1283 if (optarg[0] == '\0' && command_line.soname
1284 && command_line.soname[0])
1285 einfo (_("%P: SONAME must not be empty string; keeping previous one\n"));
1286 else
1287 command_line.soname = optarg;
1288 break;
1289 case OPTION_SORT_COMMON:
1290 if (optarg == NULL
1291 || strcmp (optarg, N_("descending")) == 0)
1292 config.sort_common = sort_descending;
1293 else if (strcmp (optarg, N_("ascending")) == 0)
1294 config.sort_common = sort_ascending;
1295 else
1296 einfo (_("%F%P: invalid common section sorting option: %s\n"),
1297 optarg);
1298 break;
1299 case OPTION_SORT_SECTION:
1300 if (strcmp (optarg, N_("name")) == 0)
1301 sort_section = by_name;
1302 else if (strcmp (optarg, N_("alignment")) == 0)
1303 sort_section = by_alignment;
1304 else
1305 einfo (_("%F%P: invalid section sorting option: %s\n"),
1306 optarg);
1307 break;
1308 case OPTION_STATS:
1309 config.stats = true;
1310 break;
1311 case OPTION_NO_SYMBOLIC:
1312 opt_symbolic = symbolic_unset;
1313 break;
1314 case OPTION_SYMBOLIC:
1315 opt_symbolic = symbolic;
1316 break;
1317 case OPTION_SYMBOLIC_FUNCTIONS:
1318 opt_symbolic = symbolic_functions;
1319 break;
1320 case 't':
1321 ++trace_files;
1322 break;
1323 case 'T':
1324 previous_script_handle = saved_script_handle;
1325 ldfile_open_script_file (optarg);
1326 parser_input = input_script;
1327 yyparse ();
1328 previous_script_handle = NULL;
1329 break;
1330 case OPTION_DEFAULT_SCRIPT:
1331 command_line.default_script = optarg;
1332 break;
1333 case OPTION_SECTION_START:
1334 {
1335 char *optarg2;
1336 char *sec_name;
1337 int len;
1338
1339 /* Check for <something>=<somthing>... */
1340 optarg2 = strchr (optarg, '=');
1341 if (optarg2 == NULL)
1342 einfo (_("%F%P: invalid argument to option"
1343 " \"--section-start\"\n"));
1344
1345 optarg2++;
1346
1347 /* So far so good. Are all the args present? */
1348 if ((*optarg == '\0') || (*optarg2 == '\0'))
1349 einfo (_("%F%P: missing argument(s) to option"
1350 " \"--section-start\"\n"));
1351
1352 /* We must copy the section name as set_section_start
1353 doesn't do it for us. */
1354 len = optarg2 - optarg;
1355 sec_name = (char *) xmalloc (len);
1356 memcpy (sec_name, optarg, len - 1);
1357 sec_name[len - 1] = 0;
1358
1359 /* Then set it... */
1360 set_section_start (sec_name, optarg2);
1361 }
1362 break;
1363 case OPTION_TARGET_HELP:
1364 /* Mention any target specific options. */
1365 ldemul_list_emulation_options (stdout);
1366 exit (0);
1367 case OPTION_TBSS:
1368 set_segment_start (".bss", optarg);
1369 break;
1370 case OPTION_TDATA:
1371 set_segment_start (".data", optarg);
1372 break;
1373 case OPTION_TTEXT:
1374 set_segment_start (".text", optarg);
1375 break;
1376 case OPTION_TTEXT_SEGMENT:
1377 set_segment_start (".text-segment", optarg);
1378 break;
1379 case OPTION_TRODATA_SEGMENT:
1380 set_segment_start (".rodata-segment", optarg);
1381 break;
1382 case OPTION_TLDATA_SEGMENT:
1383 set_segment_start (".ldata-segment", optarg);
1384 break;
1385 case OPTION_TRADITIONAL_FORMAT:
1386 link_info.traditional_format = true;
1387 break;
1388 case OPTION_TASK_LINK:
1389 link_info.task_link = true;
1390 /* Fall through. */
1391 case OPTION_UR:
1392 if (bfd_link_pic (&link_info))
1393 einfo (_("%F%P: -r and %s may not be used together\n"),
1394 bfd_link_dll (&link_info) ? "-shared" : "-pie");
1395
1396 link_info.type = type_relocatable;
1397 config.build_constructors = true;
1398 config.magic_demand_paged = false;
1399 config.text_read_only = false;
1400 input_flags.dynamic = false;
1401 break;
1402 case 'u':
1403 ldlang_add_undef (optarg, true);
1404 break;
1405 case OPTION_REQUIRE_DEFINED_SYMBOL:
1406 ldlang_add_require_defined (optarg);
1407 break;
1408 case OPTION_UNIQUE:
1409 if (optarg != NULL)
1410 lang_add_unique (optarg);
1411 else
1412 config.unique_orphan_sections = true;
1413 break;
1414 case OPTION_VERBOSE:
1415 ldversion (1);
1416 version_printed = true;
1417 verbose = true;
1418 overflow_cutoff_limit = -2;
1419 if (optarg != NULL)
1420 {
1421 char *end;
1422 int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0);
1423 if (*end)
1424 einfo (_("%F%P: invalid number `%s'\n"), optarg);
1425 #if BFD_SUPPORTS_PLUGINS
1426 report_plugin_symbols = level > 1;
1427 #endif /* BFD_SUPPORTS_PLUGINS */
1428 }
1429 break;
1430 case 'v':
1431 ldversion (0);
1432 version_printed = true;
1433 break;
1434 case 'V':
1435 ldversion (1);
1436 version_printed = true;
1437 break;
1438 case OPTION_VERSION:
1439 ldversion (2);
1440 xexit (0);
1441 break;
1442 case OPTION_VERSION_SCRIPT:
1443 /* This option indicates a small script that only specifies
1444 version information. Read it, but don't assume that
1445 we've seen a linker script. */
1446 {
1447 FILE *hold_script_handle;
1448
1449 hold_script_handle = saved_script_handle;
1450 ldfile_open_command_file (optarg);
1451 saved_script_handle = hold_script_handle;
1452 parser_input = input_version_script;
1453 yyparse ();
1454 }
1455 break;
1456 case OPTION_VERSION_EXPORTS_SECTION:
1457 /* This option records a version symbol to be applied to the
1458 symbols listed for export to be found in the object files
1459 .exports sections. */
1460 command_line.version_exports_section = optarg;
1461 break;
1462 case OPTION_DYNAMIC_LIST_DATA:
1463 opt_dynamic_list = dynamic_list_data;
1464 break;
1465 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1466 lang_append_dynamic_list_cpp_typeinfo ();
1467 if (opt_dynamic_list != dynamic_list_data)
1468 opt_dynamic_list = dynamic_list;
1469 break;
1470 case OPTION_DYNAMIC_LIST_CPP_NEW:
1471 lang_append_dynamic_list_cpp_new ();
1472 if (opt_dynamic_list != dynamic_list_data)
1473 opt_dynamic_list = dynamic_list;
1474 break;
1475 case OPTION_DYNAMIC_LIST:
1476 /* This option indicates a small script that only specifies
1477 a dynamic list. Read it, but don't assume that we've
1478 seen a linker script. */
1479 {
1480 FILE *hold_script_handle;
1481
1482 hold_script_handle = saved_script_handle;
1483 ldfile_open_command_file (optarg);
1484 saved_script_handle = hold_script_handle;
1485 parser_input = input_dynamic_list;
1486 current_dynamic_list_p = &link_info.dynamic_list;
1487 yyparse ();
1488 }
1489 if (opt_dynamic_list != dynamic_list_data)
1490 opt_dynamic_list = dynamic_list;
1491 break;
1492 case OPTION_EXPORT_DYNAMIC_SYMBOL:
1493 {
1494 struct bfd_elf_version_expr *expr
1495 = lang_new_vers_pattern (NULL, xstrdup (optarg), NULL,
1496 false);
1497 lang_append_dynamic_list (&export_list, expr);
1498 }
1499 break;
1500 case OPTION_EXPORT_DYNAMIC_SYMBOL_LIST:
1501 /* This option indicates a small script that only specifies
1502 an export list. Read it, but don't assume that we've
1503 seen a linker script. */
1504 {
1505 FILE *hold_script_handle;
1506
1507 hold_script_handle = saved_script_handle;
1508 ldfile_open_command_file (optarg);
1509 saved_script_handle = hold_script_handle;
1510 parser_input = input_dynamic_list;
1511 current_dynamic_list_p = &export_list;
1512 yyparse ();
1513 }
1514 break;
1515 case OPTION_WARN_COMMON:
1516 config.warn_common = true;
1517 break;
1518 case OPTION_WARN_CONSTRUCTORS:
1519 config.warn_constructors = true;
1520 break;
1521 case OPTION_WARN_FATAL:
1522 config.fatal_warnings = true;
1523 break;
1524 case OPTION_NO_WARN_FATAL:
1525 config.fatal_warnings = false;
1526 break;
1527 case OPTION_WARN_MULTIPLE_GP:
1528 config.warn_multiple_gp = true;
1529 break;
1530 case OPTION_WARN_ONCE:
1531 config.warn_once = true;
1532 break;
1533 case OPTION_WARN_SECTION_ALIGN:
1534 config.warn_section_align = true;
1535 break;
1536 case OPTION_WARN_TEXTREL:
1537 link_info.textrel_check = textrel_check_warning;
1538 break;
1539 case OPTION_WARN_ALTERNATE_EM:
1540 link_info.warn_alternate_em = true;
1541 break;
1542 case OPTION_WHOLE_ARCHIVE:
1543 input_flags.whole_archive = true;
1544 break;
1545 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC:
1546 input_flags.add_DT_NEEDED_for_dynamic = true;
1547 break;
1548 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC:
1549 input_flags.add_DT_NEEDED_for_dynamic = false;
1550 break;
1551 case OPTION_ADD_DT_NEEDED_FOR_REGULAR:
1552 input_flags.add_DT_NEEDED_for_regular = true;
1553 break;
1554 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR:
1555 input_flags.add_DT_NEEDED_for_regular = false;
1556 break;
1557 case OPTION_WRAP:
1558 add_wrap (optarg);
1559 break;
1560 case OPTION_IGNORE_UNRESOLVED_SYMBOL:
1561 add_ignoresym (&link_info, optarg);
1562 break;
1563 case OPTION_DISCARD_NONE:
1564 link_info.discard = discard_none;
1565 break;
1566 case 'X':
1567 link_info.discard = discard_l;
1568 break;
1569 case 'x':
1570 link_info.discard = discard_all;
1571 break;
1572 case 'Y':
1573 if (startswith (optarg, "P,"))
1574 optarg += 2;
1575 free (default_dirlist);
1576 default_dirlist = xstrdup (optarg);
1577 break;
1578 case 'y':
1579 add_ysym (optarg);
1580 break;
1581 case OPTION_SPARE_DYNAMIC_TAGS:
1582 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1583 break;
1584 case OPTION_SPLIT_BY_RELOC:
1585 if (optarg != NULL)
1586 config.split_by_reloc = strtoul (optarg, NULL, 0);
1587 else
1588 config.split_by_reloc = 32768;
1589 break;
1590 case OPTION_SPLIT_BY_FILE:
1591 if (optarg != NULL)
1592 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1593 else
1594 config.split_by_file = 1;
1595 break;
1596 case OPTION_CHECK_SECTIONS:
1597 command_line.check_section_addresses = 1;
1598 break;
1599 case OPTION_NO_CHECK_SECTIONS:
1600 command_line.check_section_addresses = 0;
1601 break;
1602 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1603 command_line.accept_unknown_input_arch = true;
1604 break;
1605 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1606 command_line.accept_unknown_input_arch = false;
1607 break;
1608 case '(':
1609 lang_enter_group ();
1610 ingroup++;
1611 break;
1612 case ')':
1613 if (! ingroup)
1614 einfo (_("%F%P: group ended before it began (--help for usage)\n"));
1615
1616 lang_leave_group ();
1617 ingroup--;
1618 break;
1619
1620 case OPTION_INIT:
1621 link_info.init_function = optarg;
1622 break;
1623
1624 case OPTION_FINI:
1625 link_info.fini_function = optarg;
1626 break;
1627
1628 case OPTION_REDUCE_MEMORY_OVERHEADS:
1629 link_info.reduce_memory_overheads = true;
1630 if (config.hash_table_size == 0)
1631 config.hash_table_size = 1021;
1632 break;
1633
1634 case OPTION_HASH_SIZE:
1635 {
1636 bfd_size_type new_size;
1637
1638 new_size = strtoul (optarg, NULL, 0);
1639 if (new_size)
1640 config.hash_table_size = new_size;
1641 else
1642 einfo (_("%X%P: --hash-size needs a numeric argument\n"));
1643 }
1644 break;
1645
1646 case OPTION_PUSH_STATE:
1647 input_flags.pushed = xmemdup (&input_flags,
1648 sizeof (input_flags),
1649 sizeof (input_flags));
1650 break;
1651
1652 case OPTION_POP_STATE:
1653 if (input_flags.pushed == NULL)
1654 einfo (_("%F%P: no state pushed before popping\n"));
1655 else
1656 {
1657 struct lang_input_statement_flags *oldp = input_flags.pushed;
1658 memcpy (&input_flags, oldp, sizeof (input_flags));
1659 free (oldp);
1660 }
1661 break;
1662
1663 case OPTION_PRINT_MEMORY_USAGE:
1664 command_line.print_memory_usage = true;
1665 break;
1666
1667 case OPTION_ORPHAN_HANDLING:
1668 if (strcasecmp (optarg, "place") == 0)
1669 config.orphan_handling = orphan_handling_place;
1670 else if (strcasecmp (optarg, "warn") == 0)
1671 config.orphan_handling = orphan_handling_warn;
1672 else if (strcasecmp (optarg, "error") == 0)
1673 config.orphan_handling = orphan_handling_error;
1674 else if (strcasecmp (optarg, "discard") == 0)
1675 config.orphan_handling = orphan_handling_discard;
1676 else
1677 einfo (_("%F%P: invalid argument to option"
1678 " \"--orphan-handling\"\n"));
1679 break;
1680
1681 case OPTION_NO_PRINT_MAP_DISCARDED:
1682 config.print_map_discarded = false;
1683 break;
1684
1685 case OPTION_PRINT_MAP_DISCARDED:
1686 config.print_map_discarded = true;
1687 break;
1688
1689 case OPTION_DEPENDENCY_FILE:
1690 config.dependency_file = optarg;
1691 break;
1692
1693 case OPTION_CTF_VARIABLES:
1694 config.ctf_variables = true;
1695 break;
1696
1697 case OPTION_NO_CTF_VARIABLES:
1698 config.ctf_variables = false;
1699 break;
1700
1701 case OPTION_CTF_SHARE_TYPES:
1702 if (strcmp (optarg, "share-unconflicted") == 0)
1703 config.ctf_share_duplicated = false;
1704 else if (strcmp (optarg, "share-duplicated") == 0)
1705 config.ctf_share_duplicated = true;
1706 else
1707 einfo (_("%F%P: bad --ctf-share-types option: %s\n"), optarg);
1708 break;
1709 }
1710 }
1711
1712 free (really_longopts);
1713 free (longopts);
1714 free (shortopts);
1715
1716 /* Run a couple of checks on the map filename. */
1717 if (config.map_filename)
1718 {
1719 char * new_name = NULL;
1720 char * percent;
1721 int res = 0;
1722
1723 if (config.map_filename[0] == 0)
1724 {
1725 einfo (_("%P: no file/directory name provided for map output; ignored\n"));
1726 config.map_filename = NULL;
1727 }
1728 else if (strcmp (config.map_filename, "-") == 0)
1729 ; /* Write to stdout. Handled in main(). */
1730 else if ((percent = strchr (config.map_filename, '%')) != NULL)
1731 {
1732 /* FIXME: Check for a second % character and issue an error ? */
1733
1734 /* Construct a map file by replacing the % character with the (full)
1735 output filename. If the % character was the last character in
1736 the original map filename then add a .map extension. */
1737 percent[0] = 0;
1738 res = asprintf (&new_name, "%s%s%s", config.map_filename,
1739 output_filename,
1740 percent[1] ? percent + 1 : ".map");
1741
1742 /* FIXME: Should we ensure that any directory components in new_name exist ? */
1743 }
1744 else
1745 {
1746 struct stat s;
1747
1748 /* If the map filename is actually a directory then create
1749 a file inside it, based upon the output filename. */
1750 if (stat (config.map_filename, &s) < 0)
1751 {
1752 if (errno != ENOENT)
1753 einfo (_("%P: cannot stat linker map file: %E\n"));
1754 }
1755 else if (S_ISDIR (s.st_mode))
1756 {
1757 char lastc = config.map_filename[strlen (config.map_filename) - 1];
1758 res = asprintf (&new_name, "%s%s%s.map",
1759 config.map_filename,
1760 IS_DIR_SEPARATOR (lastc) ? "" : "/",
1761 lbasename (output_filename));
1762 }
1763 else if (! S_ISREG (s.st_mode))
1764 {
1765 einfo (_("%P: linker map file is not a regular file\n"));
1766 config.map_filename = NULL;
1767 }
1768 /* else FIXME: Check write permission ? */
1769 }
1770
1771 if (res < 0)
1772 {
1773 /* If the asprintf failed then something is probably very
1774 wrong. Better to halt now rather than continue on
1775 into more problems. */
1776 einfo (_("%P%F: cannot create name for linker map file: %E\n"));
1777 }
1778 else if (new_name != NULL)
1779 {
1780 /* This is a trivial memory leak. */
1781 config.map_filename = new_name;
1782 }
1783 }
1784
1785 if (command_line.soname && command_line.soname[0] == '\0')
1786 {
1787 einfo (_("%P: SONAME must not be empty string; ignored\n"));
1788 command_line.soname = NULL;
1789 }
1790
1791 while (ingroup)
1792 {
1793 einfo (_("%P: missing --end-group; added as last command line option\n"));
1794 lang_leave_group ();
1795 ingroup--;
1796 }
1797
1798 if (default_dirlist != NULL)
1799 {
1800 set_default_dirlist (default_dirlist);
1801 free (default_dirlist);
1802 }
1803
1804 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1805 /* FIXME: Should we allow emulations a chance to set this ? */
1806 link_info.unresolved_syms_in_objects = RM_DIAGNOSE;
1807
1808 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1809 /* FIXME: Should we allow emulations a chance to set this ? */
1810 link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE;
1811
1812 if (bfd_link_relocatable (&link_info)
1813 && command_line.check_section_addresses < 0)
1814 command_line.check_section_addresses = 0;
1815
1816 if (export_list)
1817 {
1818 struct bfd_elf_version_expr *head = export_list->head.list;
1819 struct bfd_elf_version_expr *next;
1820
1821 /* For --export-dynamic-symbol[-list]:
1822 1. When building executable, treat like --dynamic-list.
1823 2. When building shared object:
1824 a. If -Bsymbolic or --dynamic-list are used, treat like
1825 --dynamic-list.
1826 b. Otherwise, ignored.
1827 */
1828 if (!bfd_link_relocatable (&link_info)
1829 && (bfd_link_executable (&link_info)
1830 || opt_symbolic != symbolic_unset
1831 || opt_dynamic_list != dynamic_list_unset))
1832 {
1833 /* Append the export list to link_info.dynamic_list. */
1834 if (link_info.dynamic_list)
1835 {
1836 for (next = head; next->next != NULL; next = next->next)
1837 ;
1838 next->next = link_info.dynamic_list->head.list;
1839 link_info.dynamic_list->head.list = head;
1840 }
1841 else
1842 link_info.dynamic_list = export_list;
1843
1844 if (opt_dynamic_list != dynamic_list_data)
1845 opt_dynamic_list = dynamic_list;
1846 }
1847 else
1848 {
1849 /* Free the export list. */
1850 for (; head->next != NULL; head = next)
1851 {
1852 next = head->next;
1853 free (head);
1854 }
1855 free (export_list);
1856 }
1857 }
1858
1859 switch (opt_dynamic_list)
1860 {
1861 case dynamic_list_unset:
1862 break;
1863 case dynamic_list_data:
1864 link_info.dynamic_data = true;
1865 /* Fall through. */
1866 case dynamic_list:
1867 link_info.dynamic = true;
1868 opt_symbolic = symbolic_unset;
1869 break;
1870 }
1871
1872 /* -Bsymbolic and -Bsymbols-functions are for shared library output. */
1873 if (bfd_link_dll (&link_info))
1874 switch (opt_symbolic)
1875 {
1876 case symbolic_unset:
1877 break;
1878 case symbolic:
1879 link_info.symbolic = true;
1880 if (link_info.dynamic_list)
1881 {
1882 struct bfd_elf_version_expr *ent, *next;
1883 for (ent = link_info.dynamic_list->head.list; ent; ent = next)
1884 {
1885 next = ent->next;
1886 free (ent);
1887 }
1888 free (link_info.dynamic_list);
1889 link_info.dynamic_list = NULL;
1890 }
1891 break;
1892 case symbolic_functions:
1893 link_info.dynamic = true;
1894 link_info.dynamic_data = true;
1895 break;
1896 }
1897
1898 if (!bfd_link_dll (&link_info))
1899 {
1900 if (command_line.filter_shlib)
1901 einfo (_("%F%P: -F may not be used without -shared\n"));
1902 if (command_line.auxiliary_filters)
1903 einfo (_("%F%P: -f may not be used without -shared\n"));
1904 }
1905
1906 /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
1907 don't see how else this can be handled, since in this case we
1908 must preserve all externally visible symbols. */
1909 if (bfd_link_relocatable (&link_info) && link_info.strip == strip_all)
1910 {
1911 link_info.strip = strip_debugger;
1912 if (link_info.discard == discard_sec_merge)
1913 link_info.discard = discard_all;
1914 }
1915 }
1916
1917 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1918 library search path. */
1919
1920 static void
set_default_dirlist(char * dirlist_ptr)1921 set_default_dirlist (char *dirlist_ptr)
1922 {
1923 char *p;
1924
1925 while (1)
1926 {
1927 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1928 if (p != NULL)
1929 *p = '\0';
1930 if (*dirlist_ptr != '\0')
1931 ldfile_add_library_path (dirlist_ptr, true);
1932 if (p == NULL)
1933 break;
1934 dirlist_ptr = p + 1;
1935 }
1936 }
1937
1938 static void
set_section_start(char * sect,char * valstr)1939 set_section_start (char *sect, char *valstr)
1940 {
1941 const char *end;
1942 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1943 if (*end)
1944 einfo (_("%F%P: invalid hex number `%s'\n"), valstr);
1945 lang_section_start (sect, exp_intop (val), NULL);
1946 }
1947
1948 static void
set_segment_start(const char * section,char * valstr)1949 set_segment_start (const char *section, char *valstr)
1950 {
1951 const char *name;
1952 const char *end;
1953 segment_type *seg;
1954
1955 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1956 if (*end)
1957 einfo (_("%F%P: invalid hex number `%s'\n"), valstr);
1958 /* If we already have an entry for this segment, update the existing
1959 value. */
1960 name = section + 1;
1961 for (seg = segments; seg; seg = seg->next)
1962 if (strcmp (seg->name, name) == 0)
1963 {
1964 seg->value = val;
1965 lang_section_start (section, exp_intop (val), seg);
1966 return;
1967 }
1968 /* There was no existing value so we must create a new segment
1969 entry. */
1970 seg = stat_alloc (sizeof (*seg));
1971 seg->name = name;
1972 seg->value = val;
1973 seg->used = false;
1974 /* Add it to the linked list of segments. */
1975 seg->next = segments;
1976 segments = seg;
1977 /* Historically, -Ttext and friends set the base address of a
1978 particular section. For backwards compatibility, we still do
1979 that. If a SEGMENT_START directive is seen, the section address
1980 assignment will be disabled. */
1981 lang_section_start (section, exp_intop (val), seg);
1982 }
1983
1984 static void
elf_shlib_list_options(FILE * file)1985 elf_shlib_list_options (FILE *file)
1986 {
1987 fprintf (file, _("\
1988 --audit=AUDITLIB Specify a library to use for auditing\n"));
1989 fprintf (file, _("\
1990 -Bgroup Selects group name lookup rules for DSO\n"));
1991 fprintf (file, _("\
1992 --disable-new-dtags Disable new dynamic tags\n"));
1993 fprintf (file, _("\
1994 --enable-new-dtags Enable new dynamic tags\n"));
1995 fprintf (file, _("\
1996 --eh-frame-hdr Create .eh_frame_hdr section\n"));
1997 fprintf (file, _("\
1998 --no-eh-frame-hdr Do not create .eh_frame_hdr section\n"));
1999 fprintf (file, _("\
2000 --exclude-libs=LIBS Make all symbols in LIBS hidden\n"));
2001 fprintf (file, _("\
2002 --hash-style=STYLE Set hash style to sysv/gnu/both. Default: "));
2003 if (DEFAULT_EMIT_SYSV_HASH)
2004 {
2005 /* Note - these strings are not translated as
2006 they are keywords not descriptive text. */
2007 if (DEFAULT_EMIT_GNU_HASH)
2008 fprintf (file, "both\n");
2009 else
2010 fprintf (file, "sysv\n");
2011 }
2012 else
2013 {
2014 if (DEFAULT_EMIT_GNU_HASH)
2015 fprintf (file, "gnu\n");
2016 else
2017 /* FIXME: Can this happen ? */
2018 fprintf (file, "none\n");
2019 }
2020 fprintf (file, _("\
2021 -P AUDITLIB, --depaudit=AUDITLIB\n" "\
2022 Specify a library to use for auditing dependencies\n"));
2023 fprintf (file, _("\
2024 -z combreloc Merge dynamic relocs into one section and sort\n"));
2025 fprintf (file, _("\
2026 -z nocombreloc Don't merge dynamic relocs into one section\n"));
2027 fprintf (file, _("\
2028 -z global Make symbols in DSO available for subsequently\n\
2029 loaded objects\n"));
2030 fprintf (file, _("\
2031 -z initfirst Mark DSO to be initialized first at runtime\n"));
2032 fprintf (file, _("\
2033 -z interpose Mark object to interpose all DSOs but executable\n"));
2034 fprintf (file, _("\
2035 -z unique Mark DSO to be loaded at most once by default, and only in the main namespace\n"));
2036 fprintf (file, _("\
2037 -z nounique Don't mark DSO as a loadable at most once\n"));
2038 fprintf (file, _("\
2039 -z lazy Mark object lazy runtime binding (default)\n"));
2040 fprintf (file, _("\
2041 -z loadfltr Mark object requiring immediate process\n"));
2042 fprintf (file, _("\
2043 -z nocopyreloc Don't create copy relocs\n"));
2044 fprintf (file, _("\
2045 -z nodefaultlib Mark object not to use default search paths\n"));
2046 fprintf (file, _("\
2047 -z nodelete Mark DSO non-deletable at runtime\n"));
2048 fprintf (file, _("\
2049 -z nodlopen Mark DSO not available to dlopen\n"));
2050 fprintf (file, _("\
2051 -z nodump Mark DSO not available to dldump\n"));
2052 fprintf (file, _("\
2053 -z now Mark object non-lazy runtime binding\n"));
2054 fprintf (file, _("\
2055 -z origin Mark object requiring immediate $ORIGIN\n\
2056 processing at runtime\n"));
2057 #if DEFAULT_LD_Z_RELRO
2058 fprintf (file, _("\
2059 -z relro Create RELRO program header (default)\n"));
2060 fprintf (file, _("\
2061 -z norelro Don't create RELRO program header\n"));
2062 #else
2063 fprintf (file, _("\
2064 -z relro Create RELRO program header\n"));
2065 fprintf (file, _("\
2066 -z norelro Don't create RELRO program header (default)\n"));
2067 #endif
2068 #if DEFAULT_LD_Z_SEPARATE_CODE
2069 fprintf (file, _("\
2070 -z separate-code Create separate code program header (default)\n"));
2071 fprintf (file, _("\
2072 -z noseparate-code Don't create separate code program header\n"));
2073 #else
2074 fprintf (file, _("\
2075 -z separate-code Create separate code program header\n"));
2076 fprintf (file, _("\
2077 -z noseparate-code Don't create separate code program header (default)\n"));
2078 #endif
2079 fprintf (file, _("\
2080 -z common Generate common symbols with STT_COMMON type\n"));
2081 fprintf (file, _("\
2082 -z nocommon Generate common symbols with STT_OBJECT type\n"));
2083 if (link_info.textrel_check == textrel_check_error)
2084 fprintf (file, _("\
2085 -z text Treat DT_TEXTREL in output as error (default)\n"));
2086 else
2087 fprintf (file, _("\
2088 -z text Treat DT_TEXTREL in output as error\n"));
2089 if (link_info.textrel_check == textrel_check_none)
2090 {
2091 fprintf (file, _("\
2092 -z notext Don't treat DT_TEXTREL in output as error (default)\n"));
2093 fprintf (file, _("\
2094 -z textoff Don't treat DT_TEXTREL in output as error (default)\n"));
2095 }
2096 else
2097 {
2098 fprintf (file, _("\
2099 -z notext Don't treat DT_TEXTREL in output as error\n"));
2100 fprintf (file, _("\
2101 -z textoff Don't treat DT_TEXTREL in output as error\n"));
2102 }
2103 }
2104
2105 static void
elf_static_list_options(FILE * file)2106 elf_static_list_options (FILE *file)
2107 {
2108 fprintf (file, _("\
2109 --build-id[=STYLE] Generate build ID note\n"));
2110 fprintf (file, _("\
2111 --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]\n\
2112 Compress DWARF debug sections using zlib\n"));
2113 #ifdef DEFAULT_FLAG_COMPRESS_DEBUG
2114 fprintf (file, _("\
2115 Default: zlib-gabi\n"));
2116 #else
2117 fprintf (file, _("\
2118 Default: none\n"));
2119 #endif
2120 fprintf (file, _("\
2121 -z common-page-size=SIZE Set common page size to SIZE\n"));
2122 fprintf (file, _("\
2123 -z max-page-size=SIZE Set maximum page size to SIZE\n"));
2124 fprintf (file, _("\
2125 -z defs Report unresolved symbols in object files\n"));
2126 fprintf (file, _("\
2127 -z undefs Ignore unresolved symbols in object files\n"));
2128 fprintf (file, _("\
2129 -z muldefs Allow multiple definitions\n"));
2130 fprintf (file, _("\
2131 -z stack-size=SIZE Set size of stack segment\n"));
2132 fprintf (file, _("\
2133 -z execstack Mark executable as requiring executable stack\n"));
2134 fprintf (file, _("\
2135 -z noexecstack Mark executable as not requiring executable stack\n"));
2136 fprintf (file, _("\
2137 -z unique-symbol Avoid duplicated local symbol names\n"));
2138 fprintf (file, _("\
2139 -z nounique-symbol Keep duplicated local symbol names (default)\n"));
2140 fprintf (file, _("\
2141 -z globalaudit Mark executable requiring global auditing\n"));
2142 fprintf (file, _("\
2143 -z start-stop-gc Enable garbage collection on __start/__stop\n"));
2144 fprintf (file, _("\
2145 -z nostart-stop-gc Don't garbage collect __start/__stop (default)\n"));
2146 fprintf (file, _("\
2147 -z start-stop-visibility=V Set visibility of built-in __start/__stop symbols\n\
2148 to DEFAULT, PROTECTED, HIDDEN or INTERNAL\n"));
2149 }
2150
2151 static void
elf_plt_unwind_list_options(FILE * file)2152 elf_plt_unwind_list_options (FILE *file)
2153 {
2154 fprintf (file, _("\
2155 --ld-generated-unwind-info Generate exception handling info for PLT\n"));
2156 fprintf (file, _("\
2157 --no-ld-generated-unwind-info\n\
2158 Don't generate exception handling info for PLT\n"));
2159 }
2160
2161 static void
ld_list_options(FILE * file,bool elf,bool shlib,bool plt_unwind)2162 ld_list_options (FILE *file, bool elf, bool shlib, bool plt_unwind)
2163 {
2164 if (!elf)
2165 return;
2166 printf (_("ELF emulations:\n"));
2167 if (plt_unwind)
2168 elf_plt_unwind_list_options (file);
2169 elf_static_list_options (file);
2170 if (shlib)
2171 elf_shlib_list_options (file);
2172 }
2173
2174
2175 /* Print help messages for the options. */
2176
2177 static void
help(void)2178 help (void)
2179 {
2180 unsigned i;
2181 const char **targets, **pp;
2182 int len;
2183
2184 printf (_("Usage: %s [options] file...\n"), program_name);
2185
2186 printf (_("Options:\n"));
2187 for (i = 0; i < OPTION_COUNT; i++)
2188 {
2189 if (ld_options[i].doc != NULL)
2190 {
2191 bool comma;
2192 unsigned j;
2193
2194 printf (" ");
2195
2196 comma = false;
2197 len = 2;
2198
2199 j = i;
2200 do
2201 {
2202 if (ld_options[j].shortopt != '\0'
2203 && ld_options[j].control != NO_HELP)
2204 {
2205 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
2206 len += (comma ? 2 : 0) + 2;
2207 if (ld_options[j].arg != NULL)
2208 {
2209 if (ld_options[j].opt.has_arg != optional_argument)
2210 {
2211 printf (" ");
2212 ++len;
2213 }
2214 printf ("%s", _(ld_options[j].arg));
2215 len += strlen (_(ld_options[j].arg));
2216 }
2217 comma = true;
2218 }
2219 ++j;
2220 }
2221 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
2222
2223 j = i;
2224 do
2225 {
2226 if (ld_options[j].opt.name != NULL
2227 && ld_options[j].control != NO_HELP)
2228 {
2229 int two_dashes =
2230 (ld_options[j].control == TWO_DASHES
2231 || ld_options[j].control == EXACTLY_TWO_DASHES);
2232
2233 printf ("%s-%s%s",
2234 comma ? ", " : "",
2235 two_dashes ? "-" : "",
2236 ld_options[j].opt.name);
2237 len += ((comma ? 2 : 0)
2238 + 1
2239 + (two_dashes ? 1 : 0)
2240 + strlen (ld_options[j].opt.name));
2241 if (ld_options[j].arg != NULL)
2242 {
2243 printf (" %s", _(ld_options[j].arg));
2244 len += 1 + strlen (_(ld_options[j].arg));
2245 }
2246 comma = true;
2247 }
2248 ++j;
2249 }
2250 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
2251
2252 if (len >= 30)
2253 {
2254 printf ("\n");
2255 len = 0;
2256 }
2257
2258 for (; len < 30; len++)
2259 putchar (' ');
2260
2261 printf ("%s\n", _(ld_options[i].doc));
2262 }
2263 }
2264 printf (_(" @FILE"));
2265 for (len = strlen (" @FILE"); len < 30; len++)
2266 putchar (' ');
2267 printf (_("Read options from FILE\n"));
2268
2269 /* Note: Various tools (such as libtool) depend upon the
2270 format of the listings below - do not change them. */
2271 /* xgettext:c-format */
2272 printf (_("%s: supported targets:"), program_name);
2273 targets = bfd_target_list ();
2274 for (pp = targets; *pp != NULL; pp++)
2275 printf (" %s", *pp);
2276 free (targets);
2277 printf ("\n");
2278
2279 /* xgettext:c-format */
2280 printf (_("%s: supported emulations: "), program_name);
2281 ldemul_list_emulations (stdout);
2282 printf ("\n");
2283
2284 /* xgettext:c-format */
2285 printf (_("%s: emulation specific options:\n"), program_name);
2286 ld_list_options (stdout, ELF_LIST_OPTIONS, ELF_SHLIB_LIST_OPTIONS,
2287 ELF_PLT_UNWIND_LIST_OPTIONS);
2288 ldemul_list_emulation_options (stdout);
2289 printf ("\n");
2290
2291 if (REPORT_BUGS_TO[0])
2292 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
2293 }
2294