1 /* Parse options for the GNU linker.
2 Copyright (C) 1991-2019 Free Software Foundation, Inc.
4 This file is part of the GNU Binutils.
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.
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.
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. */
24 #include "libiberty.h"
27 #include "safe-ctype.h"
43 #endif /* ENABLE_PLUGINS */
45 #ifndef PATH_SEPARATOR
46 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
47 #define PATH_SEPARATOR ';'
49 #define PATH_SEPARATOR ':'
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)
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);
63 /* The long options. This structure is used for both the option
64 parsing and the help text. */
67 /* Use one dash before long option name. */
69 /* Use two dashes before long option name. */
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
81 /* Don't mention this option in --help output. */
87 /* The long option information. */
89 /* The short option with the same meaning ('\0' if none). */
91 /* The name of the argument (NULL if none). */
93 /* The documentation string. If this is NULL, this is a synonym for
94 the previous option. */
96 enum control_enum control
;
99 static const struct ld_option ld_options
[] =
101 { {NULL
, required_argument
, NULL
, '\0'},
102 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
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"),
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 { {"force-group-allocation", no_argument
, NULL
,
116 OPTION_FORCE_GROUP_ALLOCATION
},
117 '\0', NULL
, N_("Force group members out of groups"), TWO_DASHES
},
118 { {"entry", required_argument
, NULL
, 'e'},
119 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES
},
120 { {"export-dynamic", no_argument
, NULL
, OPTION_EXPORT_DYNAMIC
},
121 'E', NULL
, N_("Export all dynamic symbols"), TWO_DASHES
},
122 { {"no-export-dynamic", no_argument
, NULL
, OPTION_NO_EXPORT_DYNAMIC
},
123 '\0', NULL
, N_("Undo the effect of --export-dynamic"), TWO_DASHES
},
124 { {"EB", no_argument
, NULL
, OPTION_EB
},
125 '\0', NULL
, N_("Link big-endian objects"), ONE_DASH
},
126 { {"EL", no_argument
, NULL
, OPTION_EL
},
127 '\0', NULL
, N_("Link little-endian objects"), ONE_DASH
},
128 { {"auxiliary", required_argument
, NULL
, 'f'},
129 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
131 { {"filter", required_argument
, NULL
, 'F'},
132 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
134 { {NULL
, no_argument
, NULL
, '\0'},
135 'g', NULL
, N_("Ignored"), ONE_DASH
},
136 { {"gpsize", required_argument
, NULL
, 'G'},
137 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
139 { {"soname", required_argument
, NULL
, OPTION_SONAME
},
140 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH
},
141 { {"dynamic-linker", required_argument
, NULL
, OPTION_DYNAMIC_LINKER
},
142 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
144 { {"no-dynamic-linker", no_argument
, NULL
, OPTION_NO_DYNAMIC_LINKER
},
145 '\0', NULL
, N_("Produce an executable with no program interpreter header"),
147 { {"library", required_argument
, NULL
, 'l'},
148 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES
},
149 { {"library-path", required_argument
, NULL
, 'L'},
150 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
152 { {"sysroot=<DIRECTORY>", required_argument
, NULL
, OPTION_SYSROOT
},
153 '\0', NULL
, N_("Override the default sysroot location"), TWO_DASHES
},
154 { {NULL
, required_argument
, NULL
, '\0'},
155 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH
},
156 { {"print-map", no_argument
, NULL
, 'M'},
157 'M', NULL
, N_("Print map file on standard output"), TWO_DASHES
},
158 { {"nmagic", no_argument
, NULL
, 'n'},
159 'n', NULL
, N_("Do not page align data"), TWO_DASHES
},
160 { {"omagic", no_argument
, NULL
, 'N'},
161 'N', NULL
, N_("Do not page align data, do not make text readonly"),
162 EXACTLY_TWO_DASHES
},
163 { {"no-omagic", no_argument
, NULL
, OPTION_NO_OMAGIC
},
164 '\0', NULL
, N_("Page align data, make text readonly"),
165 EXACTLY_TWO_DASHES
},
166 { {"output", required_argument
, NULL
, 'o'},
167 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES
},
168 { {NULL
, required_argument
, NULL
, '\0'},
169 'O', NULL
, N_("Optimize output file"), ONE_DASH
},
170 { {"out-implib", required_argument
, NULL
, OPTION_OUT_IMPLIB
},
171 '\0', N_("FILE"), N_("Generate import library"), TWO_DASHES
},
172 #ifdef ENABLE_PLUGINS
173 { {"plugin", required_argument
, NULL
, OPTION_PLUGIN
},
174 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH
},
175 { {"plugin-opt", required_argument
, NULL
, OPTION_PLUGIN_OPT
},
176 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH
},
177 { {"flto", optional_argument
, NULL
, OPTION_IGNORE
},
178 '\0', NULL
, N_("Ignored for GCC LTO option compatibility"),
180 { {"flto-partition=", required_argument
, NULL
, OPTION_IGNORE
},
181 '\0', NULL
, N_("Ignored for GCC LTO option compatibility"),
183 #endif /* ENABLE_PLUGINS */
184 { {"fuse-ld=", required_argument
, NULL
, OPTION_IGNORE
},
185 '\0', NULL
, N_("Ignored for GCC linker option compatibility"),
187 { {"map-whole-files", optional_argument
, NULL
, OPTION_IGNORE
},
188 '\0', NULL
, N_("Ignored for gold option compatibility"),
190 { {"no-map-whole-files", optional_argument
, NULL
, OPTION_IGNORE
},
191 '\0', NULL
, N_("Ignored for gold option compatibility"),
193 { {"Qy", no_argument
, NULL
, OPTION_IGNORE
},
194 '\0', NULL
, N_("Ignored for SVR4 compatibility"), ONE_DASH
},
195 { {"emit-relocs", no_argument
, NULL
, 'q'},
196 'q', NULL
, "Generate relocations in final output", TWO_DASHES
},
197 { {"relocatable", no_argument
, NULL
, 'r'},
198 'r', NULL
, N_("Generate relocatable output"), TWO_DASHES
},
199 { {NULL
, no_argument
, NULL
, '\0'},
200 'i', NULL
, NULL
, ONE_DASH
},
201 { {"just-symbols", required_argument
, NULL
, 'R'},
202 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
204 { {"strip-all", no_argument
, NULL
, 's'},
205 's', NULL
, N_("Strip all symbols"), TWO_DASHES
},
206 { {"strip-debug", no_argument
, NULL
, 'S'},
207 'S', NULL
, N_("Strip debugging symbols"), TWO_DASHES
},
208 { {"strip-discarded", no_argument
, NULL
, OPTION_STRIP_DISCARDED
},
209 '\0', NULL
, N_("Strip symbols in discarded sections"), TWO_DASHES
},
210 { {"no-strip-discarded", no_argument
, NULL
, OPTION_NO_STRIP_DISCARDED
},
211 '\0', NULL
, N_("Do not strip symbols in discarded sections"), TWO_DASHES
},
212 { {"trace", no_argument
, NULL
, 't'},
213 't', NULL
, N_("Trace file opens"), TWO_DASHES
},
214 { {"script", required_argument
, NULL
, 'T'},
215 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES
},
216 { {"default-script", required_argument
, NULL
, OPTION_DEFAULT_SCRIPT
},
217 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES
},
218 { {"dT", required_argument
, NULL
, OPTION_DEFAULT_SCRIPT
},
219 '\0', NULL
, NULL
, ONE_DASH
},
220 { {"undefined", required_argument
, NULL
, 'u'},
221 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
223 { {"require-defined", required_argument
, NULL
, OPTION_REQUIRE_DEFINED_SYMBOL
},
224 '\0', N_("SYMBOL"), N_("Require SYMBOL be defined in the final output"),
226 { {"unique", optional_argument
, NULL
, OPTION_UNIQUE
},
227 '\0', N_("[=SECTION]"),
228 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES
},
229 { {"Ur", no_argument
, NULL
, OPTION_UR
},
230 '\0', NULL
, N_("Build global constructor/destructor tables"), ONE_DASH
},
231 { {"version", no_argument
, NULL
, OPTION_VERSION
},
232 'v', NULL
, N_("Print version information"), TWO_DASHES
},
233 { {NULL
, no_argument
, NULL
, '\0'},
234 'V', NULL
, N_("Print version and emulation information"), ONE_DASH
},
235 { {"discard-all", no_argument
, NULL
, 'x'},
236 'x', NULL
, N_("Discard all local symbols"), TWO_DASHES
},
237 { {"discard-locals", no_argument
, NULL
, 'X'},
238 'X', NULL
, N_("Discard temporary local symbols (default)"), TWO_DASHES
},
239 { {"discard-none", no_argument
, NULL
, OPTION_DISCARD_NONE
},
240 '\0', NULL
, N_("Don't discard any local symbols"), TWO_DASHES
},
241 { {"trace-symbol", required_argument
, NULL
, 'y'},
242 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES
},
243 { {NULL
, required_argument
, NULL
, '\0'},
244 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
246 { {"start-group", no_argument
, NULL
, '('},
247 '(', NULL
, N_("Start a group"), TWO_DASHES
},
248 { {"end-group", no_argument
, NULL
, ')'},
249 ')', NULL
, N_("End a group"), TWO_DASHES
},
250 { {"accept-unknown-input-arch", no_argument
, NULL
,
251 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
},
253 N_("Accept input files whose architecture cannot be determined"),
255 { {"no-accept-unknown-input-arch", no_argument
, NULL
,
256 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
},
257 '\0', NULL
, N_("Reject input files whose architecture is unknown"),
260 /* The next two options are deprecated because of their similarity to
261 --as-needed and --no-as-needed. They have been replaced by
262 --copy-dt-needed-entries and --no-copy-dt-needed-entries. */
263 { {"add-needed", no_argument
, NULL
, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
},
264 '\0', NULL
, NULL
, NO_HELP
},
265 { {"no-add-needed", no_argument
, NULL
, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
},
266 '\0', NULL
, NULL
, NO_HELP
},
268 { {"as-needed", no_argument
, NULL
, OPTION_ADD_DT_NEEDED_FOR_REGULAR
},
269 '\0', NULL
, N_("Only set DT_NEEDED for following dynamic libs if used"),
271 { {"no-as-needed", no_argument
, NULL
, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
},
272 '\0', NULL
, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
273 " the command line"),
275 { {"assert", required_argument
, NULL
, OPTION_ASSERT
},
276 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH
},
277 { {"Bdynamic", no_argument
, NULL
, OPTION_CALL_SHARED
},
278 '\0', NULL
, N_("Link against shared libraries"), ONE_DASH
},
279 { {"dy", no_argument
, NULL
, OPTION_CALL_SHARED
},
280 '\0', NULL
, NULL
, ONE_DASH
},
281 { {"call_shared", no_argument
, NULL
, OPTION_CALL_SHARED
},
282 '\0', NULL
, NULL
, ONE_DASH
},
283 { {"Bstatic", no_argument
, NULL
, OPTION_NON_SHARED
},
284 '\0', NULL
, N_("Do not link against shared libraries"), ONE_DASH
},
285 { {"dn", no_argument
, NULL
, OPTION_NON_SHARED
},
286 '\0', NULL
, NULL
, ONE_DASH
},
287 { {"non_shared", no_argument
, NULL
, OPTION_NON_SHARED
},
288 '\0', NULL
, NULL
, ONE_DASH
},
289 { {"static", no_argument
, NULL
, OPTION_NON_SHARED
},
290 '\0', NULL
, NULL
, ONE_DASH
},
291 { {"Bsymbolic", no_argument
, NULL
, OPTION_SYMBOLIC
},
292 '\0', NULL
, N_("Bind global references locally"), ONE_DASH
},
293 { {"Bsymbolic-functions", no_argument
, NULL
, OPTION_SYMBOLIC_FUNCTIONS
},
294 '\0', NULL
, N_("Bind global function references locally"), ONE_DASH
},
295 { {"check-sections", no_argument
, NULL
, OPTION_CHECK_SECTIONS
},
296 '\0', NULL
, N_("Check section addresses for overlaps (default)"),
298 { {"no-check-sections", no_argument
, NULL
, OPTION_NO_CHECK_SECTIONS
},
299 '\0', NULL
, N_("Do not check section addresses for overlaps"),
301 { {"copy-dt-needed-entries", no_argument
, NULL
,
302 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
},
303 '\0', NULL
, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
305 { {"no-copy-dt-needed-entries", no_argument
, NULL
,
306 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
},
307 '\0', NULL
, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
310 { {"cref", no_argument
, NULL
, OPTION_CREF
},
311 '\0', NULL
, N_("Output cross reference table"), TWO_DASHES
},
312 { {"defsym", required_argument
, NULL
, OPTION_DEFSYM
},
313 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES
},
314 { {"demangle", optional_argument
, NULL
, OPTION_DEMANGLE
},
315 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
317 { {"disable-multiple-abs-defs", no_argument
, NULL
,
318 OPTION_DISABLE_MULTIPLE_DEFS_ABS
},
319 '\0', NULL
, N_("Do not allow multiple definitions with symbols included\n"
320 " in filename invoked by -R or --just-symbols"),
322 { {"embedded-relocs", no_argument
, NULL
, OPTION_EMBEDDED_RELOCS
},
323 '\0', NULL
, N_("Generate embedded relocs"), TWO_DASHES
},
324 { {"fatal-warnings", no_argument
, NULL
, OPTION_WARN_FATAL
},
325 '\0', NULL
, N_("Treat warnings as errors"),
327 { {"no-fatal-warnings", no_argument
, NULL
, OPTION_NO_WARN_FATAL
},
328 '\0', NULL
, N_("Do not treat warnings as errors (default)"),
330 { {"fini", required_argument
, NULL
, OPTION_FINI
},
331 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH
},
332 { {"force-exe-suffix", no_argument
, NULL
, OPTION_FORCE_EXE_SUFFIX
},
333 '\0', NULL
, N_("Force generation of file with .exe suffix"), TWO_DASHES
},
334 { {"gc-sections", no_argument
, NULL
, OPTION_GC_SECTIONS
},
335 '\0', NULL
, N_("Remove unused sections (on some targets)"),
337 { {"no-gc-sections", no_argument
, NULL
, OPTION_NO_GC_SECTIONS
},
338 '\0', NULL
, N_("Don't remove unused sections (default)"),
340 { {"print-gc-sections", no_argument
, NULL
, OPTION_PRINT_GC_SECTIONS
},
341 '\0', NULL
, N_("List removed unused sections on stderr"),
343 { {"no-print-gc-sections", no_argument
, NULL
, OPTION_NO_PRINT_GC_SECTIONS
},
344 '\0', NULL
, N_("Do not list removed unused sections"),
346 { {"gc-keep-exported", no_argument
, NULL
, OPTION_GC_KEEP_EXPORTED
},
347 '\0', NULL
, N_("Keep exported symbols when removing unused sections"),
349 { {"hash-size=<NUMBER>", required_argument
, NULL
, OPTION_HASH_SIZE
},
350 '\0', NULL
, N_("Set default hash table size close to <NUMBER>"),
352 { {"help", no_argument
, NULL
, OPTION_HELP
},
353 '\0', NULL
, N_("Print option help"), TWO_DASHES
},
354 { {"init", required_argument
, NULL
, OPTION_INIT
},
355 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH
},
356 { {"Map", required_argument
, NULL
, OPTION_MAP
},
357 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH
},
358 { {"no-define-common", no_argument
, NULL
, OPTION_NO_DEFINE_COMMON
},
359 '\0', NULL
, N_("Do not define Common storage"), TWO_DASHES
},
360 { {"no-demangle", no_argument
, NULL
, OPTION_NO_DEMANGLE
},
361 '\0', NULL
, N_("Do not demangle symbol names"), TWO_DASHES
},
362 { {"no-keep-memory", no_argument
, NULL
, OPTION_NO_KEEP_MEMORY
},
363 '\0', NULL
, N_("Use less memory and more disk I/O"), TWO_DASHES
},
364 { {"no-undefined", no_argument
, NULL
, OPTION_NO_UNDEFINED
},
365 '\0', NULL
, N_("Do not allow unresolved references in object files"),
367 { {"allow-shlib-undefined", no_argument
, NULL
, OPTION_ALLOW_SHLIB_UNDEFINED
},
368 '\0', NULL
, N_("Allow unresolved references in shared libraries"),
370 { {"no-allow-shlib-undefined", no_argument
, NULL
,
371 OPTION_NO_ALLOW_SHLIB_UNDEFINED
},
372 '\0', NULL
, N_("Do not allow unresolved references in shared libs"),
374 { {"allow-multiple-definition", no_argument
, NULL
,
375 OPTION_ALLOW_MULTIPLE_DEFINITION
},
376 '\0', NULL
, N_("Allow multiple definitions"), TWO_DASHES
},
377 { {"no-undefined-version", no_argument
, NULL
, OPTION_NO_UNDEFINED_VERSION
},
378 '\0', NULL
, N_("Disallow undefined version"), TWO_DASHES
},
379 { {"default-symver", no_argument
, NULL
, OPTION_DEFAULT_SYMVER
},
380 '\0', NULL
, N_("Create default symbol version"), TWO_DASHES
},
381 { {"default-imported-symver", no_argument
, NULL
,
382 OPTION_DEFAULT_IMPORTED_SYMVER
},
383 '\0', NULL
, N_("Create default symbol version for imported symbols"),
385 { {"no-warn-mismatch", no_argument
, NULL
, OPTION_NO_WARN_MISMATCH
},
386 '\0', NULL
, N_("Don't warn about mismatched input files"), TWO_DASHES
},
387 { {"no-warn-search-mismatch", no_argument
, NULL
,
388 OPTION_NO_WARN_SEARCH_MISMATCH
},
389 '\0', NULL
, N_("Don't warn on finding an incompatible library"),
391 { {"no-whole-archive", no_argument
, NULL
, OPTION_NO_WHOLE_ARCHIVE
},
392 '\0', NULL
, N_("Turn off --whole-archive"), TWO_DASHES
},
393 { {"noinhibit-exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
394 '\0', NULL
, N_("Create an output file even if errors occur"),
396 { {"noinhibit_exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
397 '\0', NULL
, NULL
, NO_HELP
},
398 { {"nostdlib", no_argument
, NULL
, OPTION_NOSTDLIB
},
399 '\0', NULL
, N_("Only use library directories specified on\n"
400 " the command line"),
402 { {"oformat", required_argument
, NULL
, OPTION_OFORMAT
},
403 '\0', N_("TARGET"), N_("Specify target of output file"),
404 EXACTLY_TWO_DASHES
},
405 { {"print-output-format", no_argument
, NULL
, OPTION_PRINT_OUTPUT_FORMAT
},
406 '\0', NULL
, N_("Print default output format"), TWO_DASHES
},
407 { {"print-sysroot", no_argument
, NULL
, OPTION_PRINT_SYSROOT
},
408 '\0', NULL
, N_("Print current sysroot"), TWO_DASHES
},
409 { {"qmagic", no_argument
, NULL
, OPTION_IGNORE
},
410 '\0', NULL
, N_("Ignored for Linux compatibility"), ONE_DASH
},
411 { {"reduce-memory-overheads", no_argument
, NULL
,
412 OPTION_REDUCE_MEMORY_OVERHEADS
},
413 '\0', NULL
, N_("Reduce memory overheads, possibly taking much longer"),
415 { {"relax", no_argument
, NULL
, OPTION_RELAX
},
416 '\0', NULL
, N_("Reduce code size by using target specific optimizations"), TWO_DASHES
},
417 { {"no-relax", no_argument
, NULL
, OPTION_NO_RELAX
},
418 '\0', NULL
, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES
},
419 { {"retain-symbols-file", required_argument
, NULL
,
420 OPTION_RETAIN_SYMBOLS_FILE
},
421 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES
},
422 { {"rpath", required_argument
, NULL
, OPTION_RPATH
},
423 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH
},
424 { {"rpath-link", required_argument
, NULL
, OPTION_RPATH_LINK
},
425 '\0', N_("PATH"), N_("Set link time shared library search path"),
427 { {"shared", no_argument
, NULL
, OPTION_SHARED
},
428 '\0', NULL
, N_("Create a shared library"), ONE_DASH
},
429 { {"Bshareable", no_argument
, NULL
, OPTION_SHARED
}, /* FreeBSD. */
430 '\0', NULL
, NULL
, ONE_DASH
},
431 { {"pie", no_argument
, NULL
, OPTION_PIE
},
432 '\0', NULL
, N_("Create a position independent executable"), ONE_DASH
},
433 { {"pic-executable", no_argument
, NULL
, OPTION_PIE
},
434 '\0', NULL
, NULL
, TWO_DASHES
},
435 { {"sort-common", optional_argument
, NULL
, OPTION_SORT_COMMON
},
436 '\0', N_("[=ascending|descending]"),
437 N_("Sort common symbols by alignment [in specified order]"),
439 { {"sort_common", no_argument
, NULL
, OPTION_SORT_COMMON
},
440 '\0', NULL
, NULL
, NO_HELP
},
441 { {"sort-section", required_argument
, NULL
, OPTION_SORT_SECTION
},
442 '\0', N_("name|alignment"),
443 N_("Sort sections by name or maximum alignment"), TWO_DASHES
},
444 { {"spare-dynamic-tags", required_argument
, NULL
, OPTION_SPARE_DYNAMIC_TAGS
},
445 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
447 { {"split-by-file", optional_argument
, NULL
, OPTION_SPLIT_BY_FILE
},
448 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
450 { {"split-by-reloc", optional_argument
, NULL
, OPTION_SPLIT_BY_RELOC
},
451 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
453 { {"stats", no_argument
, NULL
, OPTION_STATS
},
454 '\0', NULL
, N_("Print memory usage statistics"), TWO_DASHES
},
455 { {"target-help", no_argument
, NULL
, OPTION_TARGET_HELP
},
456 '\0', NULL
, N_("Display target specific options"), TWO_DASHES
},
457 { {"task-link", required_argument
, NULL
, OPTION_TASK_LINK
},
458 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES
},
459 { {"traditional-format", no_argument
, NULL
, OPTION_TRADITIONAL_FORMAT
},
460 '\0', NULL
, N_("Use same format as native linker"), TWO_DASHES
},
461 { {"section-start", required_argument
, NULL
, OPTION_SECTION_START
},
462 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
464 { {"Tbss", required_argument
, NULL
, OPTION_TBSS
},
465 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH
},
466 { {"Tdata", required_argument
, NULL
, OPTION_TDATA
},
467 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH
},
468 { {"Ttext", required_argument
, NULL
, OPTION_TTEXT
},
469 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH
},
470 { {"Ttext-segment", required_argument
, NULL
, OPTION_TTEXT_SEGMENT
},
471 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH
},
472 { {"Trodata-segment", required_argument
, NULL
, OPTION_TRODATA_SEGMENT
},
473 '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH
},
474 { {"Tldata-segment", required_argument
, NULL
, OPTION_TLDATA_SEGMENT
},
475 '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH
},
476 { {"unresolved-symbols=<method>", required_argument
, NULL
,
477 OPTION_UNRESOLVED_SYMBOLS
},
478 '\0', NULL
, N_("How to handle unresolved symbols. <method> is:\n"
479 " ignore-all, report-all, ignore-in-object-files,\n"
480 " ignore-in-shared-libs"),
482 { {"verbose", optional_argument
, NULL
, OPTION_VERBOSE
},
483 '\0', N_("[=NUMBER]"),
484 N_("Output lots of information during link"), TWO_DASHES
},
485 { {"dll-verbose", no_argument
, NULL
, OPTION_VERBOSE
}, /* Linux. */
486 '\0', NULL
, NULL
, NO_HELP
},
487 { {"version-script", required_argument
, NULL
, OPTION_VERSION_SCRIPT
},
488 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES
},
489 { {"version-exports-section", required_argument
, NULL
,
490 OPTION_VERSION_EXPORTS_SECTION
},
491 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
492 " SYMBOL as the version."),
494 { {"dynamic-list-data", no_argument
, NULL
, OPTION_DYNAMIC_LIST_DATA
},
495 '\0', NULL
, N_("Add data symbols to dynamic list"), TWO_DASHES
},
496 { {"dynamic-list-cpp-new", no_argument
, NULL
, OPTION_DYNAMIC_LIST_CPP_NEW
},
497 '\0', NULL
, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES
},
498 { {"dynamic-list-cpp-typeinfo", no_argument
, NULL
, OPTION_DYNAMIC_LIST_CPP_TYPEINFO
},
499 '\0', NULL
, N_("Use C++ typeinfo dynamic list"), TWO_DASHES
},
500 { {"dynamic-list", required_argument
, NULL
, OPTION_DYNAMIC_LIST
},
501 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES
},
502 { {"warn-common", no_argument
, NULL
, OPTION_WARN_COMMON
},
503 '\0', NULL
, N_("Warn about duplicate common symbols"), TWO_DASHES
},
504 { {"warn-constructors", no_argument
, NULL
, OPTION_WARN_CONSTRUCTORS
},
505 '\0', NULL
, N_("Warn if global constructors/destructors are seen"),
507 { {"warn-multiple-gp", no_argument
, NULL
, OPTION_WARN_MULTIPLE_GP
},
508 '\0', NULL
, N_("Warn if the multiple GP values are used"), TWO_DASHES
},
509 { {"warn-once", no_argument
, NULL
, OPTION_WARN_ONCE
},
510 '\0', NULL
, N_("Warn only once per undefined symbol"), TWO_DASHES
},
511 { {"warn-section-align", no_argument
, NULL
, OPTION_WARN_SECTION_ALIGN
},
512 '\0', NULL
, N_("Warn if start of section changes due to alignment"),
514 { {"warn-shared-textrel", no_argument
, NULL
, OPTION_WARN_SHARED_TEXTREL
},
515 '\0', NULL
, N_("Warn if shared object has DT_TEXTREL"),
517 { {"warn-alternate-em", no_argument
, NULL
, OPTION_WARN_ALTERNATE_EM
},
518 '\0', NULL
, N_("Warn if an object has alternate ELF machine code"),
520 { {"warn-unresolved-symbols", no_argument
, NULL
,
521 OPTION_WARN_UNRESOLVED_SYMBOLS
},
522 '\0', NULL
, N_("Report unresolved symbols as warnings"), TWO_DASHES
},
523 { {"error-unresolved-symbols", no_argument
, NULL
,
524 OPTION_ERROR_UNRESOLVED_SYMBOLS
},
525 '\0', NULL
, N_("Report unresolved symbols as errors"), TWO_DASHES
},
526 { {"whole-archive", no_argument
, NULL
, OPTION_WHOLE_ARCHIVE
},
527 '\0', NULL
, N_("Include all objects from following archives"),
529 { {"wrap", required_argument
, NULL
, OPTION_WRAP
},
530 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES
},
531 { {"ignore-unresolved-symbol", required_argument
, NULL
,
532 OPTION_IGNORE_UNRESOLVED_SYMBOL
},
534 N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES
},
535 { {"push-state", no_argument
, NULL
, OPTION_PUSH_STATE
},
536 '\0', NULL
, N_("Push state of flags governing input file handling"),
538 { {"pop-state", no_argument
, NULL
, OPTION_POP_STATE
},
539 '\0', NULL
, N_("Pop state of flags governing input file handling"),
541 { {"print-memory-usage", no_argument
, NULL
, OPTION_PRINT_MEMORY_USAGE
},
542 '\0', NULL
, N_("Report target memory usage"), TWO_DASHES
},
543 { {"orphan-handling", required_argument
, NULL
, OPTION_ORPHAN_HANDLING
},
544 '\0', N_("=MODE"), N_("Control how orphan sections are handled."),
546 { {"print-map-discarded", no_argument
, NULL
, OPTION_PRINT_MAP_DISCARDED
},
547 '\0', NULL
, N_("Show discarded sections in map file output (default)"),
549 { {"no-print-map-discarded", no_argument
, NULL
, OPTION_NO_PRINT_MAP_DISCARDED
},
550 '\0', NULL
, N_("Do not show discarded sections in map file output"),
554 #define OPTION_COUNT ARRAY_SIZE (ld_options)
557 parse_args (unsigned argc
, char **argv
)
562 char *default_dirlist
= NULL
;
564 struct option
*longopts
;
565 struct option
*really_longopts
;
567 enum report_method how_to_report_unresolved_symbols
= RM_GENERATE_ERROR
;
573 } opt_symbolic
= symbolic_unset
;
574 enum dynamic_list_enum
576 dynamic_list_unset
= 0,
579 } opt_dynamic_list
= dynamic_list_unset
;
581 shortopts
= (char *) xmalloc (OPTION_COUNT
* 3 + 2);
582 longopts
= (struct option
*)
583 xmalloc (sizeof (*longopts
) * (OPTION_COUNT
+ 1));
584 really_longopts
= (struct option
*)
585 malloc (sizeof (*really_longopts
) * (OPTION_COUNT
+ 1));
587 /* Starting the short option string with '-' is for programs that
588 expect options and other ARGV-elements in any order and that care about
589 the ordering of the two. We describe each non-option ARGV-element
590 as if it were the argument of an option with character code 1. */
595 for (i
= 0; i
< OPTION_COUNT
; i
++)
597 if (ld_options
[i
].shortopt
!= '\0')
599 shortopts
[is
] = ld_options
[i
].shortopt
;
601 if (ld_options
[i
].opt
.has_arg
== required_argument
602 || ld_options
[i
].opt
.has_arg
== optional_argument
)
606 if (ld_options
[i
].opt
.has_arg
== optional_argument
)
613 if (ld_options
[i
].opt
.name
!= NULL
)
615 if (ld_options
[i
].control
== EXACTLY_TWO_DASHES
)
617 really_longopts
[irl
] = ld_options
[i
].opt
;
622 longopts
[il
] = ld_options
[i
].opt
;
627 shortopts
[is
] = '\0';
628 longopts
[il
].name
= NULL
;
629 really_longopts
[irl
].name
= NULL
;
631 ldemul_add_options (is
, &shortopts
, il
, &longopts
, irl
, &really_longopts
);
633 /* The -G option is ambiguous on different platforms. Sometimes it
634 specifies the largest data size to put into the small data
635 section. Sometimes it is equivalent to --shared. Unfortunately,
636 the first form takes an argument, while the second does not.
638 We need to permit the --shared form because on some platforms,
639 such as Solaris, gcc -shared will pass -G to the linker.
641 To permit either usage, we look through the argument list. If we
642 find -G not followed by a number, we change it into --shared.
643 This will work for most normal cases. */
644 for (i
= 1; i
< argc
; i
++)
645 if (strcmp (argv
[i
], "-G") == 0
647 || ! ISDIGIT (argv
[i
+ 1][0])))
648 argv
[i
] = (char *) "--shared";
650 /* Because we permit long options to start with a single dash, and
651 we have a --library option, and the -l option is conventionally
652 used with an immediately following argument, we can have bad
653 results if somebody tries to use -l with a library whose name
654 happens to start with "ibrary", as in -li. We avoid problems by
655 simply turning -l into --library. This means that users will
656 have to use two dashes in order to use --library, which is OK
657 since that's how it is documented.
659 FIXME: It's possible that this problem can arise for other short
660 options as well, although the user does always have the recourse
661 of adding a space between the option and the argument. */
662 for (i
= 1; i
< argc
; i
++)
664 if (argv
[i
][0] == '-'
666 && argv
[i
][2] != '\0')
670 n
= (char *) xmalloc (strlen (argv
[i
]) + 20);
671 sprintf (n
, "--library=%s", argv
[i
] + 2);
681 static unsigned int defsym_count
;
683 /* Using last_optind lets us avoid calling ldemul_parse_args
684 multiple times on a single option, which would lead to
685 confusion in the internal static variables maintained by
686 getopt. This could otherwise happen for an argument like
687 -nx, in which the -n is parsed as a single option, and we
688 loop around to pick up the -x. */
689 if (optind
!= last_optind
)
690 if (ldemul_parse_args (argc
, argv
))
693 /* getopt_long_only is like getopt_long, but '-' as well as '--'
694 can indicate a long option. */
696 last_optind
= optind
;
697 optc
= getopt_long_only (argc
, argv
, shortopts
, longopts
, &longind
);
700 optind
= last_optind
;
701 optc
= getopt_long (argc
, argv
, "-", really_longopts
, &longind
);
704 if (ldemul_handle_option (optc
))
714 /* If the last word on the command line is an option that
715 requires an argument, getopt will refuse to recognise it.
716 Try to catch such options here and issue a more helpful
717 error message than just "unrecognized option". */
720 for (opt
= ARRAY_SIZE (ld_options
); opt
--;)
721 if (ld_options
[opt
].opt
.has_arg
== required_argument
722 /* FIXME: There are a few short options that do not
723 have long equivalents, but which require arguments.
724 We should handle them too. */
725 && ld_options
[opt
].opt
.name
!= NULL
726 && strcmp (argv
[last_optind
] + ld_options
[opt
].control
, ld_options
[opt
].opt
.name
) == 0)
728 einfo (_("%P: %s: missing argument\n"), argv
[last_optind
]);
733 einfo (_("%P: unrecognized option '%s'\n"), argv
[last_optind
]);
738 einfo (_("%F%P: use the --help option for usage information\n"));
741 case 1: /* File name. */
742 lang_add_input_file (optarg
, lang_input_file_is_file_enum
, NULL
);
748 /* For HP/UX compatibility. Actually -a shared should mean
749 ``use only shared libraries'' but, then, we don't
750 currently support shared libraries on HP/UX anyhow. */
751 if (strcmp (optarg
, "archive") == 0)
752 input_flags
.dynamic
= FALSE
;
753 else if (strcmp (optarg
, "shared") == 0
754 || strcmp (optarg
, "default") == 0)
755 input_flags
.dynamic
= TRUE
;
757 einfo (_("%F%P: unrecognized -a option `%s'\n"), optarg
);
760 /* FIXME: We just ignore these, but we should handle them. */
761 if (strcmp (optarg
, "definitions") == 0)
763 else if (strcmp (optarg
, "nodefinitions") == 0)
765 else if (strcmp (optarg
, "nosymbolic") == 0)
767 else if (strcmp (optarg
, "pure-text") == 0)
770 einfo (_("%F%P: unrecognized -assert option `%s'\n"), optarg
);
773 ldfile_add_arch (optarg
);
776 lang_add_target (optarg
);
779 ldfile_open_command_file (optarg
);
780 parser_input
= input_mri_script
;
783 case OPTION_CALL_SHARED
:
784 input_flags
.dynamic
= TRUE
;
786 case OPTION_NON_SHARED
:
787 input_flags
.dynamic
= FALSE
;
790 command_line
.cref
= TRUE
;
791 link_info
.notice_all
= TRUE
;
794 command_line
.force_common_definition
= TRUE
;
796 case OPTION_FORCE_GROUP_ALLOCATION
:
797 command_line
.force_group_allocation
= TRUE
;
801 lex_redirect (optarg
, "--defsym", ++defsym_count
);
802 parser_input
= input_defsym
;
806 case OPTION_DEMANGLE
:
810 enum demangling_styles style
;
812 style
= cplus_demangle_name_to_style (optarg
);
813 if (style
== unknown_demangling
)
814 einfo (_("%F%P: unknown demangling style `%s'\n"),
817 cplus_demangle_set_style (style
);
820 case 'I': /* Used on Solaris. */
821 case OPTION_DYNAMIC_LINKER
:
822 command_line
.interpreter
= optarg
;
823 link_info
.nointerp
= 0;
825 case OPTION_NO_DYNAMIC_LINKER
:
826 link_info
.nointerp
= 1;
829 /* Already handled in ldmain.c. */
832 command_line
.endian
= ENDIAN_BIG
;
835 command_line
.endian
= ENDIAN_LITTLE
;
837 case OPTION_EMBEDDED_RELOCS
:
838 command_line
.embedded_relocs
= TRUE
;
840 case OPTION_EXPORT_DYNAMIC
:
841 case 'E': /* HP/UX compatibility. */
842 link_info
.export_dynamic
= TRUE
;
844 case OPTION_NO_EXPORT_DYNAMIC
:
845 link_info
.export_dynamic
= FALSE
;
848 lang_add_entry (optarg
, TRUE
);
851 if (command_line
.auxiliary_filters
== NULL
)
853 command_line
.auxiliary_filters
= (char **)
854 xmalloc (2 * sizeof (char *));
855 command_line
.auxiliary_filters
[0] = optarg
;
856 command_line
.auxiliary_filters
[1] = NULL
;
864 for (p
= command_line
.auxiliary_filters
; *p
!= NULL
; p
++)
866 command_line
.auxiliary_filters
= (char **)
867 xrealloc (command_line
.auxiliary_filters
,
868 (c
+ 2) * sizeof (char *));
869 command_line
.auxiliary_filters
[c
] = optarg
;
870 command_line
.auxiliary_filters
[c
+ 1] = NULL
;
874 command_line
.filter_shlib
= optarg
;
876 case OPTION_FORCE_EXE_SUFFIX
:
877 command_line
.force_exe_suffix
= TRUE
;
882 g_switch_value
= strtoul (optarg
, &end
, 0);
884 einfo (_("%F%P: invalid number `%s'\n"), optarg
);
890 case OPTION_GC_SECTIONS
:
891 link_info
.gc_sections
= TRUE
;
893 case OPTION_PRINT_GC_SECTIONS
:
894 link_info
.print_gc_sections
= TRUE
;
896 case OPTION_GC_KEEP_EXPORTED
:
897 link_info
.gc_keep_exported
= TRUE
;
904 ldfile_add_library_path (optarg
, TRUE
);
907 lang_add_input_file (optarg
, lang_input_file_is_l_enum
, NULL
);
910 config
.map_filename
= "-";
913 /* Ignore. Was handled in a pre-parse. */
916 config
.map_filename
= optarg
;
919 config
.text_read_only
= FALSE
;
920 config
.magic_demand_paged
= FALSE
;
921 input_flags
.dynamic
= FALSE
;
923 case OPTION_NO_OMAGIC
:
924 config
.text_read_only
= TRUE
;
925 config
.magic_demand_paged
= TRUE
;
926 /* NB/ Does not set input_flags.dynamic to TRUE.
927 Use --call-shared or -Bdynamic for this. */
930 config
.magic_demand_paged
= FALSE
;
931 input_flags
.dynamic
= FALSE
;
933 case OPTION_NO_DEFINE_COMMON
:
934 link_info
.inhibit_common_definition
= TRUE
;
936 case OPTION_NO_DEMANGLE
:
939 case OPTION_NO_GC_SECTIONS
:
940 link_info
.gc_sections
= FALSE
;
942 case OPTION_NO_PRINT_GC_SECTIONS
:
943 link_info
.print_gc_sections
= FALSE
;
945 case OPTION_NO_KEEP_MEMORY
:
946 link_info
.keep_memory
= FALSE
;
948 case OPTION_NO_UNDEFINED
:
949 link_info
.unresolved_syms_in_objects
950 = how_to_report_unresolved_symbols
;
952 case OPTION_ALLOW_SHLIB_UNDEFINED
:
953 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
955 case OPTION_NO_ALLOW_SHLIB_UNDEFINED
:
956 link_info
.unresolved_syms_in_shared_libs
957 = how_to_report_unresolved_symbols
;
959 case OPTION_UNRESOLVED_SYMBOLS
:
960 if (strcmp (optarg
, "ignore-all") == 0)
962 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
963 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
965 else if (strcmp (optarg
, "report-all") == 0)
967 link_info
.unresolved_syms_in_objects
968 = how_to_report_unresolved_symbols
;
969 link_info
.unresolved_syms_in_shared_libs
970 = how_to_report_unresolved_symbols
;
972 else if (strcmp (optarg
, "ignore-in-object-files") == 0)
974 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
975 link_info
.unresolved_syms_in_shared_libs
976 = how_to_report_unresolved_symbols
;
978 else if (strcmp (optarg
, "ignore-in-shared-libs") == 0)
980 link_info
.unresolved_syms_in_objects
981 = how_to_report_unresolved_symbols
;
982 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
985 einfo (_("%F%P: bad --unresolved-symbols option: %s\n"), optarg
);
987 case OPTION_WARN_UNRESOLVED_SYMBOLS
:
988 how_to_report_unresolved_symbols
= RM_GENERATE_WARNING
;
989 if (link_info
.unresolved_syms_in_objects
== RM_GENERATE_ERROR
)
990 link_info
.unresolved_syms_in_objects
= RM_GENERATE_WARNING
;
991 if (link_info
.unresolved_syms_in_shared_libs
== RM_GENERATE_ERROR
)
992 link_info
.unresolved_syms_in_shared_libs
= RM_GENERATE_WARNING
;
995 case OPTION_ERROR_UNRESOLVED_SYMBOLS
:
996 how_to_report_unresolved_symbols
= RM_GENERATE_ERROR
;
997 if (link_info
.unresolved_syms_in_objects
== RM_GENERATE_WARNING
)
998 link_info
.unresolved_syms_in_objects
= RM_GENERATE_ERROR
;
999 if (link_info
.unresolved_syms_in_shared_libs
== RM_GENERATE_WARNING
)
1000 link_info
.unresolved_syms_in_shared_libs
= RM_GENERATE_ERROR
;
1002 case OPTION_ALLOW_MULTIPLE_DEFINITION
:
1003 link_info
.allow_multiple_definition
= TRUE
;
1005 case OPTION_NO_UNDEFINED_VERSION
:
1006 link_info
.allow_undefined_version
= FALSE
;
1008 case OPTION_DEFAULT_SYMVER
:
1009 link_info
.create_default_symver
= TRUE
;
1011 case OPTION_DEFAULT_IMPORTED_SYMVER
:
1012 link_info
.default_imported_symver
= TRUE
;
1014 case OPTION_NO_WARN_MISMATCH
:
1015 command_line
.warn_mismatch
= FALSE
;
1017 case OPTION_NO_WARN_SEARCH_MISMATCH
:
1018 command_line
.warn_search_mismatch
= FALSE
;
1020 case OPTION_NOINHIBIT_EXEC
:
1021 force_make_executable
= TRUE
;
1023 case OPTION_NOSTDLIB
:
1024 config
.only_cmd_line_lib_dirs
= TRUE
;
1026 case OPTION_NO_WHOLE_ARCHIVE
:
1027 input_flags
.whole_archive
= FALSE
;
1030 /* FIXME "-O<non-digits> <value>" used to set the address of
1031 section <non-digits>. Was this for compatibility with
1032 something, or can we create a new option to do that
1033 (with a syntax similar to -defsym)?
1034 getopt can't handle two args to an option without kludges. */
1036 /* Enable optimizations of output files. */
1037 link_info
.optimize
= strtoul (optarg
, NULL
, 0) ? TRUE
: FALSE
;
1040 lang_add_output (optarg
, 0);
1042 case OPTION_OFORMAT
:
1043 lang_add_output_format (optarg
, NULL
, NULL
, 0);
1045 case OPTION_OUT_IMPLIB
:
1046 command_line
.out_implib_filename
= xstrdup (optarg
);
1048 case OPTION_PRINT_SYSROOT
:
1053 case OPTION_PRINT_OUTPUT_FORMAT
:
1054 command_line
.print_output_format
= TRUE
;
1056 #ifdef ENABLE_PLUGINS
1058 plugin_opt_plugin (optarg
);
1060 case OPTION_PLUGIN_OPT
:
1061 if (plugin_opt_plugin_arg (optarg
))
1062 einfo (_("%F%P: bad -plugin-opt option\n"));
1064 #endif /* ENABLE_PLUGINS */
1066 link_info
.emitrelocations
= TRUE
;
1070 if (optind
== last_optind
)
1071 /* This can happen if the user put "-rpath,a" on the command
1072 line. (Or something similar. The comma is important).
1073 Getopt becomes confused and thinks that this is a -r option
1074 but it cannot parse the text after the -r so it refuses to
1075 increment the optind counter. Detect this case and issue
1076 an error message here. We cannot just make this a warning,
1077 increment optind, and continue because getopt is too confused
1078 and will seg-fault the next time around. */
1079 einfo(_("%F%P: unrecognised option: %s\n"), argv
[optind
]);
1081 if (bfd_link_pic (&link_info
))
1082 einfo (_("%F%P: -r and %s may not be used together\n"),
1083 bfd_link_dll (&link_info
) ? "-shared" : "-pie");
1085 link_info
.type
= type_relocatable
;
1086 config
.build_constructors
= FALSE
;
1087 config
.magic_demand_paged
= FALSE
;
1088 config
.text_read_only
= FALSE
;
1089 input_flags
.dynamic
= FALSE
;
1092 /* The GNU linker traditionally uses -R to mean to include
1093 only the symbols from a file. The Solaris linker uses -R
1094 to set the path used by the runtime linker to find
1095 libraries. This is the GNU linker -rpath argument. We
1096 try to support both simultaneously by checking the file
1097 named. If it is a directory, rather than a regular file,
1098 we assume -rpath was meant. */
1102 if (stat (optarg
, &s
) >= 0
1103 && ! S_ISDIR (s
.st_mode
))
1105 lang_add_input_file (optarg
,
1106 lang_input_file_is_symbols_only_enum
,
1113 if (command_line
.rpath
== NULL
)
1114 command_line
.rpath
= xstrdup (optarg
);
1117 size_t rpath_len
= strlen (command_line
.rpath
);
1118 size_t optarg_len
= strlen (optarg
);
1120 char *cp
= command_line
.rpath
;
1122 /* First see whether OPTARG is already in the path. */
1125 if (strncmp (optarg
, cp
, optarg_len
) == 0
1126 && (cp
[optarg_len
] == 0
1127 || cp
[optarg_len
] == config
.rpath_separator
))
1131 /* Not yet found. */
1132 cp
= strchr (cp
, config
.rpath_separator
);
1140 buf
= (char *) xmalloc (rpath_len
+ optarg_len
+ 2);
1141 sprintf (buf
, "%s%c%s", command_line
.rpath
,
1142 config
.rpath_separator
, optarg
);
1143 free (command_line
.rpath
);
1144 command_line
.rpath
= buf
;
1148 case OPTION_RPATH_LINK
:
1149 if (command_line
.rpath_link
== NULL
)
1150 command_line
.rpath_link
= xstrdup (optarg
);
1155 buf
= (char *) xmalloc (strlen (command_line
.rpath_link
)
1158 sprintf (buf
, "%s%c%s", command_line
.rpath_link
,
1159 config
.rpath_separator
, optarg
);
1160 free (command_line
.rpath_link
);
1161 command_line
.rpath_link
= buf
;
1164 case OPTION_NO_RELAX
:
1170 case OPTION_RETAIN_SYMBOLS_FILE
:
1171 add_keepsyms_file (optarg
);
1174 link_info
.strip
= strip_debugger
;
1177 link_info
.strip
= strip_all
;
1179 case OPTION_STRIP_DISCARDED
:
1180 link_info
.strip_discarded
= TRUE
;
1182 case OPTION_NO_STRIP_DISCARDED
:
1183 link_info
.strip_discarded
= FALSE
;
1185 case OPTION_DISABLE_MULTIPLE_DEFS_ABS
:
1186 link_info
.prohibit_multiple_definition_absolute
= TRUE
;
1189 if (config
.has_shared
)
1191 if (bfd_link_relocatable (&link_info
))
1192 einfo (_("%F%P: -r and %s may not be used together\n"),
1195 link_info
.type
= type_dll
;
1196 /* When creating a shared library, the default
1197 behaviour is to ignore any unresolved references. */
1198 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1199 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
1200 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1201 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
1204 einfo (_("%F%P: -shared not supported\n"));
1207 if (config
.has_shared
)
1209 if (bfd_link_relocatable (&link_info
))
1210 einfo (_("%F%P: -r and %s may not be used together\n"), "-pie");
1212 link_info
.type
= type_pie
;
1215 einfo (_("%F%P: -pie not supported\n"));
1217 case 'h': /* Used on Solaris. */
1219 if (optarg
[0] == '\0' && command_line
.soname
1220 && command_line
.soname
[0])
1221 einfo (_("%P: SONAME must not be empty string; keeping previous one\n"));
1223 command_line
.soname
= optarg
;
1225 case OPTION_SORT_COMMON
:
1227 || strcmp (optarg
, N_("descending")) == 0)
1228 config
.sort_common
= sort_descending
;
1229 else if (strcmp (optarg
, N_("ascending")) == 0)
1230 config
.sort_common
= sort_ascending
;
1232 einfo (_("%F%P: invalid common section sorting option: %s\n"),
1235 case OPTION_SORT_SECTION
:
1236 if (strcmp (optarg
, N_("name")) == 0)
1237 sort_section
= by_name
;
1238 else if (strcmp (optarg
, N_("alignment")) == 0)
1239 sort_section
= by_alignment
;
1241 einfo (_("%F%P: invalid section sorting option: %s\n"),
1245 config
.stats
= TRUE
;
1247 case OPTION_SYMBOLIC
:
1248 opt_symbolic
= symbolic
;
1250 case OPTION_SYMBOLIC_FUNCTIONS
:
1251 opt_symbolic
= symbolic_functions
;
1257 previous_script_handle
= saved_script_handle
;
1258 ldfile_open_script_file (optarg
);
1259 parser_input
= input_script
;
1261 previous_script_handle
= NULL
;
1263 case OPTION_DEFAULT_SCRIPT
:
1264 command_line
.default_script
= optarg
;
1266 case OPTION_SECTION_START
:
1272 /* Check for <something>=<somthing>... */
1273 optarg2
= strchr (optarg
, '=');
1274 if (optarg2
== NULL
)
1275 einfo (_("%F%P: invalid argument to option"
1276 " \"--section-start\"\n"));
1280 /* So far so good. Are all the args present? */
1281 if ((*optarg
== '\0') || (*optarg2
== '\0'))
1282 einfo (_("%F%P: missing argument(s) to option"
1283 " \"--section-start\"\n"));
1285 /* We must copy the section name as set_section_start
1286 doesn't do it for us. */
1287 len
= optarg2
- optarg
;
1288 sec_name
= (char *) xmalloc (len
);
1289 memcpy (sec_name
, optarg
, len
- 1);
1290 sec_name
[len
- 1] = 0;
1292 /* Then set it... */
1293 set_section_start (sec_name
, optarg2
);
1296 case OPTION_TARGET_HELP
:
1297 /* Mention any target specific options. */
1298 ldemul_list_emulation_options (stdout
);
1301 set_segment_start (".bss", optarg
);
1304 set_segment_start (".data", optarg
);
1307 set_segment_start (".text", optarg
);
1309 case OPTION_TTEXT_SEGMENT
:
1310 set_segment_start (".text-segment", optarg
);
1312 case OPTION_TRODATA_SEGMENT
:
1313 set_segment_start (".rodata-segment", optarg
);
1315 case OPTION_TLDATA_SEGMENT
:
1316 set_segment_start (".ldata-segment", optarg
);
1318 case OPTION_TRADITIONAL_FORMAT
:
1319 link_info
.traditional_format
= TRUE
;
1321 case OPTION_TASK_LINK
:
1322 link_info
.task_link
= TRUE
;
1325 if (bfd_link_pic (&link_info
))
1326 einfo (_("%F%P: -r and %s may not be used together\n"),
1327 bfd_link_dll (&link_info
) ? "-shared" : "-pie");
1329 link_info
.type
= type_relocatable
;
1330 config
.build_constructors
= TRUE
;
1331 config
.magic_demand_paged
= FALSE
;
1332 config
.text_read_only
= FALSE
;
1333 input_flags
.dynamic
= FALSE
;
1336 ldlang_add_undef (optarg
, TRUE
);
1338 case OPTION_REQUIRE_DEFINED_SYMBOL
:
1339 ldlang_add_require_defined (optarg
);
1343 lang_add_unique (optarg
);
1345 config
.unique_orphan_sections
= TRUE
;
1347 case OPTION_VERBOSE
:
1349 version_printed
= TRUE
;
1351 overflow_cutoff_limit
= -2;
1355 int level ATTRIBUTE_UNUSED
= strtoul (optarg
, &end
, 0);
1357 einfo (_("%F%P: invalid number `%s'\n"), optarg
);
1358 #ifdef ENABLE_PLUGINS
1359 report_plugin_symbols
= level
> 1;
1360 #endif /* ENABLE_PLUGINS */
1365 version_printed
= TRUE
;
1369 version_printed
= TRUE
;
1371 case OPTION_VERSION
:
1375 case OPTION_VERSION_SCRIPT
:
1376 /* This option indicates a small script that only specifies
1377 version information. Read it, but don't assume that
1378 we've seen a linker script. */
1380 FILE *hold_script_handle
;
1382 hold_script_handle
= saved_script_handle
;
1383 ldfile_open_command_file (optarg
);
1384 saved_script_handle
= hold_script_handle
;
1385 parser_input
= input_version_script
;
1389 case OPTION_VERSION_EXPORTS_SECTION
:
1390 /* This option records a version symbol to be applied to the
1391 symbols listed for export to be found in the object files
1392 .exports sections. */
1393 command_line
.version_exports_section
= optarg
;
1395 case OPTION_DYNAMIC_LIST_DATA
:
1396 opt_dynamic_list
= dynamic_list_data
;
1397 if (opt_symbolic
== symbolic
)
1398 opt_symbolic
= symbolic_unset
;
1400 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO
:
1401 lang_append_dynamic_list_cpp_typeinfo ();
1402 if (opt_dynamic_list
!= dynamic_list_data
)
1403 opt_dynamic_list
= dynamic_list
;
1404 if (opt_symbolic
== symbolic
)
1405 opt_symbolic
= symbolic_unset
;
1407 case OPTION_DYNAMIC_LIST_CPP_NEW
:
1408 lang_append_dynamic_list_cpp_new ();
1409 if (opt_dynamic_list
!= dynamic_list_data
)
1410 opt_dynamic_list
= dynamic_list
;
1411 if (opt_symbolic
== symbolic
)
1412 opt_symbolic
= symbolic_unset
;
1414 case OPTION_DYNAMIC_LIST
:
1415 /* This option indicates a small script that only specifies
1416 a dynamic list. Read it, but don't assume that we've
1417 seen a linker script. */
1419 FILE *hold_script_handle
;
1421 hold_script_handle
= saved_script_handle
;
1422 ldfile_open_command_file (optarg
);
1423 saved_script_handle
= hold_script_handle
;
1424 parser_input
= input_dynamic_list
;
1427 if (opt_dynamic_list
!= dynamic_list_data
)
1428 opt_dynamic_list
= dynamic_list
;
1429 if (opt_symbolic
== symbolic
)
1430 opt_symbolic
= symbolic_unset
;
1432 case OPTION_WARN_COMMON
:
1433 config
.warn_common
= TRUE
;
1435 case OPTION_WARN_CONSTRUCTORS
:
1436 config
.warn_constructors
= TRUE
;
1438 case OPTION_WARN_FATAL
:
1439 config
.fatal_warnings
= TRUE
;
1441 case OPTION_NO_WARN_FATAL
:
1442 config
.fatal_warnings
= FALSE
;
1444 case OPTION_WARN_MULTIPLE_GP
:
1445 config
.warn_multiple_gp
= TRUE
;
1447 case OPTION_WARN_ONCE
:
1448 config
.warn_once
= TRUE
;
1450 case OPTION_WARN_SECTION_ALIGN
:
1451 config
.warn_section_align
= TRUE
;
1453 case OPTION_WARN_SHARED_TEXTREL
:
1454 link_info
.warn_shared_textrel
= TRUE
;
1456 case OPTION_WARN_ALTERNATE_EM
:
1457 link_info
.warn_alternate_em
= TRUE
;
1459 case OPTION_WHOLE_ARCHIVE
:
1460 input_flags
.whole_archive
= TRUE
;
1462 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
:
1463 input_flags
.add_DT_NEEDED_for_dynamic
= TRUE
;
1465 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
:
1466 input_flags
.add_DT_NEEDED_for_dynamic
= FALSE
;
1468 case OPTION_ADD_DT_NEEDED_FOR_REGULAR
:
1469 input_flags
.add_DT_NEEDED_for_regular
= TRUE
;
1471 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
:
1472 input_flags
.add_DT_NEEDED_for_regular
= FALSE
;
1477 case OPTION_IGNORE_UNRESOLVED_SYMBOL
:
1478 add_ignoresym (&link_info
, optarg
);
1480 case OPTION_DISCARD_NONE
:
1481 link_info
.discard
= discard_none
;
1484 link_info
.discard
= discard_l
;
1487 link_info
.discard
= discard_all
;
1490 if (CONST_STRNEQ (optarg
, "P,"))
1492 if (default_dirlist
!= NULL
)
1493 free (default_dirlist
);
1494 default_dirlist
= xstrdup (optarg
);
1499 case OPTION_SPARE_DYNAMIC_TAGS
:
1500 link_info
.spare_dynamic_tags
= strtoul (optarg
, NULL
, 0);
1502 case OPTION_SPLIT_BY_RELOC
:
1504 config
.split_by_reloc
= strtoul (optarg
, NULL
, 0);
1506 config
.split_by_reloc
= 32768;
1508 case OPTION_SPLIT_BY_FILE
:
1510 config
.split_by_file
= bfd_scan_vma (optarg
, NULL
, 0);
1512 config
.split_by_file
= 1;
1514 case OPTION_CHECK_SECTIONS
:
1515 command_line
.check_section_addresses
= 1;
1517 case OPTION_NO_CHECK_SECTIONS
:
1518 command_line
.check_section_addresses
= 0;
1520 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
:
1521 command_line
.accept_unknown_input_arch
= TRUE
;
1523 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
:
1524 command_line
.accept_unknown_input_arch
= FALSE
;
1527 lang_enter_group ();
1532 einfo (_("%F%P: group ended before it began (--help for usage)\n"));
1534 lang_leave_group ();
1539 link_info
.init_function
= optarg
;
1543 link_info
.fini_function
= optarg
;
1546 case OPTION_REDUCE_MEMORY_OVERHEADS
:
1547 link_info
.reduce_memory_overheads
= TRUE
;
1548 if (config
.hash_table_size
== 0)
1549 config
.hash_table_size
= 1021;
1552 case OPTION_HASH_SIZE
:
1554 bfd_size_type new_size
;
1556 new_size
= strtoul (optarg
, NULL
, 0);
1558 config
.hash_table_size
= new_size
;
1560 einfo (_("%X%P: --hash-size needs a numeric argument\n"));
1564 case OPTION_PUSH_STATE
:
1565 input_flags
.pushed
= xmemdup (&input_flags
,
1566 sizeof (input_flags
),
1567 sizeof (input_flags
));
1570 case OPTION_POP_STATE
:
1571 if (input_flags
.pushed
== NULL
)
1572 einfo (_("%F%P: no state pushed before popping\n"));
1575 struct lang_input_statement_flags
*oldp
= input_flags
.pushed
;
1576 memcpy (&input_flags
, oldp
, sizeof (input_flags
));
1581 case OPTION_PRINT_MEMORY_USAGE
:
1582 command_line
.print_memory_usage
= TRUE
;
1585 case OPTION_ORPHAN_HANDLING
:
1586 if (strcasecmp (optarg
, "place") == 0)
1587 config
.orphan_handling
= orphan_handling_place
;
1588 else if (strcasecmp (optarg
, "warn") == 0)
1589 config
.orphan_handling
= orphan_handling_warn
;
1590 else if (strcasecmp (optarg
, "error") == 0)
1591 config
.orphan_handling
= orphan_handling_error
;
1592 else if (strcasecmp (optarg
, "discard") == 0)
1593 config
.orphan_handling
= orphan_handling_discard
;
1595 einfo (_("%F%P: invalid argument to option"
1596 " \"--orphan-handling\"\n"));
1599 case OPTION_NO_PRINT_MAP_DISCARDED
:
1600 config
.print_map_discarded
= FALSE
;
1603 case OPTION_PRINT_MAP_DISCARDED
:
1604 config
.print_map_discarded
= TRUE
;
1609 if (command_line
.soname
&& command_line
.soname
[0] == '\0')
1611 einfo (_("%P: SONAME must not be empty string; ignored\n"));
1612 command_line
.soname
= NULL
;
1617 einfo (_("%P: missing --end-group; added as last command line option\n"));
1618 lang_leave_group ();
1622 if (default_dirlist
!= NULL
)
1624 set_default_dirlist (default_dirlist
);
1625 free (default_dirlist
);
1628 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1629 /* FIXME: Should we allow emulations a chance to set this ? */
1630 link_info
.unresolved_syms_in_objects
= how_to_report_unresolved_symbols
;
1632 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1633 /* FIXME: Should we allow emulations a chance to set this ? */
1634 link_info
.unresolved_syms_in_shared_libs
= how_to_report_unresolved_symbols
;
1636 if (bfd_link_relocatable (&link_info
)
1637 && command_line
.check_section_addresses
< 0)
1638 command_line
.check_section_addresses
= 0;
1640 /* -Bsymbolic and -Bsymbols-functions are for shared library output. */
1641 if (bfd_link_dll (&link_info
))
1642 switch (opt_symbolic
)
1644 case symbolic_unset
:
1647 link_info
.symbolic
= TRUE
;
1648 if (link_info
.dynamic_list
)
1650 struct bfd_elf_version_expr
*ent
, *next
;
1651 for (ent
= link_info
.dynamic_list
->head
.list
; ent
; ent
= next
)
1656 free (link_info
.dynamic_list
);
1657 link_info
.dynamic_list
= NULL
;
1659 opt_dynamic_list
= dynamic_list_unset
;
1661 case symbolic_functions
:
1662 opt_dynamic_list
= dynamic_list_data
;
1666 switch (opt_dynamic_list
)
1668 case dynamic_list_unset
:
1670 case dynamic_list_data
:
1671 link_info
.dynamic_data
= TRUE
;
1674 link_info
.dynamic
= TRUE
;
1678 if (!bfd_link_dll (&link_info
))
1680 if (command_line
.filter_shlib
)
1681 einfo (_("%F%P: -F may not be used without -shared\n"));
1682 if (command_line
.auxiliary_filters
)
1683 einfo (_("%F%P: -f may not be used without -shared\n"));
1686 /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
1687 don't see how else this can be handled, since in this case we
1688 must preserve all externally visible symbols. */
1689 if (bfd_link_relocatable (&link_info
) && link_info
.strip
== strip_all
)
1691 link_info
.strip
= strip_debugger
;
1692 if (link_info
.discard
== discard_sec_merge
)
1693 link_info
.discard
= discard_all
;
1697 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1698 library search path. */
1701 set_default_dirlist (char *dirlist_ptr
)
1707 p
= strchr (dirlist_ptr
, PATH_SEPARATOR
);
1710 if (*dirlist_ptr
!= '\0')
1711 ldfile_add_library_path (dirlist_ptr
, TRUE
);
1714 dirlist_ptr
= p
+ 1;
1719 set_section_start (char *sect
, char *valstr
)
1722 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
1724 einfo (_("%F%P: invalid hex number `%s'\n"), valstr
);
1725 lang_section_start (sect
, exp_intop (val
), NULL
);
1729 set_segment_start (const char *section
, char *valstr
)
1735 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
1737 einfo (_("%F%P: invalid hex number `%s'\n"), valstr
);
1738 /* If we already have an entry for this segment, update the existing
1741 for (seg
= segments
; seg
; seg
= seg
->next
)
1742 if (strcmp (seg
->name
, name
) == 0)
1745 lang_section_start (section
, exp_intop (val
), seg
);
1748 /* There was no existing value so we must create a new segment
1750 seg
= stat_alloc (sizeof (*seg
));
1754 /* Add it to the linked list of segments. */
1755 seg
->next
= segments
;
1757 /* Historically, -Ttext and friends set the base address of a
1758 particular section. For backwards compatibility, we still do
1759 that. If a SEGMENT_START directive is seen, the section address
1760 assignment will be disabled. */
1761 lang_section_start (section
, exp_intop (val
), seg
);
1765 elf_shlib_list_options (FILE *file
)
1768 --audit=AUDITLIB Specify a library to use for auditing\n"));
1770 -Bgroup Selects group name lookup rules for DSO\n"));
1772 --disable-new-dtags Disable new dynamic tags\n"));
1774 --enable-new-dtags Enable new dynamic tags\n"));
1776 --eh-frame-hdr Create .eh_frame_hdr section\n"));
1778 --no-eh-frame-hdr Do not create .eh_frame_hdr section\n"));
1780 --exclude-libs=LIBS Make all symbols in LIBS hidden\n"));
1782 --hash-style=STYLE Set hash style to sysv, gnu or both\n"));
1784 -P AUDITLIB, --depaudit=AUDITLIB\n" "\
1785 Specify a library to use for auditing dependencies\n"));
1787 -z combreloc Merge dynamic relocs into one section and sort\n"));
1789 -z nocombreloc Don't merge dynamic relocs into one section\n"));
1791 -z global Make symbols in DSO available for subsequently\n\
1792 loaded objects\n"));
1794 -z initfirst Mark DSO to be initialized first at runtime\n"));
1796 -z interpose Mark object to interpose all DSOs but executable\n"));
1798 -z lazy Mark object lazy runtime binding (default)\n"));
1800 -z loadfltr Mark object requiring immediate process\n"));
1802 -z nocopyreloc Don't create copy relocs\n"));
1804 -z nodefaultlib Mark object not to use default search paths\n"));
1806 -z nodelete Mark DSO non-deletable at runtime\n"));
1808 -z nodlopen Mark DSO not available to dlopen\n"));
1810 -z nodump Mark DSO not available to dldump\n"));
1812 -z now Mark object non-lazy runtime binding\n"));
1814 -z origin Mark object requiring immediate $ORIGIN\n\
1815 processing at runtime\n"));
1816 #if DEFAULT_LD_Z_RELRO
1818 -z relro Create RELRO program header (default)\n"));
1820 -z norelro Don't create RELRO program header\n"));
1823 -z relro Create RELRO program header\n"));
1825 -z norelro Don't create RELRO program header (default)\n"));
1827 #if DEFAULT_LD_Z_SEPARATE_CODE
1829 -z separate-code Create separate code program header (default)\n"));
1831 -z noseparate-code Don't create separate code program header\n"));
1834 -z separate-code Create separate code program header\n"));
1836 -z noseparate-code Don't create separate code program header (default)\n"));
1839 -z common Generate common symbols with STT_COMMON type\n"));
1841 -z nocommon Generate common symbols with STT_OBJECT type\n"));
1843 -z stack-size=SIZE Set size of stack segment\n"));
1845 -z text Treat DT_TEXTREL in shared object as error\n"));
1847 -z notext Don't treat DT_TEXTREL in shared object as error\n"));
1849 -z textoff Don't treat DT_TEXTREL in shared object as error\n"));
1853 elf_static_list_options (FILE *file
)
1856 --build-id[=STYLE] Generate build ID note\n"));
1858 --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]\n\
1859 Compress DWARF debug sections using zlib\n"));
1860 #ifdef DEFAULT_FLAG_COMPRESS_DEBUG
1862 Default: zlib-gabi\n"));
1868 -z common-page-size=SIZE Set common page size to SIZE\n"));
1870 -z max-page-size=SIZE Set maximum page size to SIZE\n"));
1872 -z defs Report unresolved symbols in object files\n"));
1874 -z muldefs Allow multiple definitions\n"));
1876 -z execstack Mark executable as requiring executable stack\n"));
1878 -z noexecstack Mark executable as not requiring executable stack\n"));
1880 -z globalaudit Mark executable requiring global auditing\n"));
1884 elf_plt_unwind_list_options (FILE *file
)
1887 --ld-generated-unwind-info Generate exception handling info for PLT\n"));
1889 --no-ld-generated-unwind-info\n\
1890 Don't generate exception handling info for PLT\n"));
1894 ld_list_options (FILE *file
, bfd_boolean elf
, bfd_boolean shlib
,
1895 bfd_boolean plt_unwind
)
1899 printf (_("ELF emulations:\n"));
1901 elf_plt_unwind_list_options (file
);
1902 elf_static_list_options (file
);
1904 elf_shlib_list_options (file
);
1908 /* Print help messages for the options. */
1914 const char **targets
, **pp
;
1917 printf (_("Usage: %s [options] file...\n"), program_name
);
1919 printf (_("Options:\n"));
1920 for (i
= 0; i
< OPTION_COUNT
; i
++)
1922 if (ld_options
[i
].doc
!= NULL
)
1935 if (ld_options
[j
].shortopt
!= '\0'
1936 && ld_options
[j
].control
!= NO_HELP
)
1938 printf ("%s-%c", comma
? ", " : "", ld_options
[j
].shortopt
);
1939 len
+= (comma
? 2 : 0) + 2;
1940 if (ld_options
[j
].arg
!= NULL
)
1942 if (ld_options
[j
].opt
.has_arg
!= optional_argument
)
1947 printf ("%s", _(ld_options
[j
].arg
));
1948 len
+= strlen (_(ld_options
[j
].arg
));
1954 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
1959 if (ld_options
[j
].opt
.name
!= NULL
1960 && ld_options
[j
].control
!= NO_HELP
)
1963 (ld_options
[j
].control
== TWO_DASHES
1964 || ld_options
[j
].control
== EXACTLY_TWO_DASHES
);
1968 two_dashes
? "-" : "",
1969 ld_options
[j
].opt
.name
);
1970 len
+= ((comma
? 2 : 0)
1972 + (two_dashes
? 1 : 0)
1973 + strlen (ld_options
[j
].opt
.name
));
1974 if (ld_options
[j
].arg
!= NULL
)
1976 printf (" %s", _(ld_options
[j
].arg
));
1977 len
+= 1 + strlen (_(ld_options
[j
].arg
));
1983 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
1991 for (; len
< 30; len
++)
1994 printf ("%s\n", _(ld_options
[i
].doc
));
1997 printf (_(" @FILE"));
1998 for (len
= strlen (" @FILE"); len
< 30; len
++)
2000 printf (_("Read options from FILE\n"));
2002 /* Note: Various tools (such as libtool) depend upon the
2003 format of the listings below - do not change them. */
2004 /* xgettext:c-format */
2005 printf (_("%s: supported targets:"), program_name
);
2006 targets
= bfd_target_list ();
2007 for (pp
= targets
; *pp
!= NULL
; pp
++)
2008 printf (" %s", *pp
);
2012 /* xgettext:c-format */
2013 printf (_("%s: supported emulations: "), program_name
);
2014 ldemul_list_emulations (stdout
);
2017 /* xgettext:c-format */
2018 printf (_("%s: emulation specific options:\n"), program_name
);
2019 ld_list_options (stdout
, ELF_LIST_OPTIONS
, ELF_SHLIB_LIST_OPTIONS
,
2020 ELF_PLT_UNWIND_LIST_OPTIONS
);
2021 ldemul_list_emulation_options (stdout
);
2024 if (REPORT_BUGS_TO
[0])
2025 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO
);