1 /* Parse options for the GNU linker.
2 Copyright (C) 1991-2024 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"
25 #include "filenames.h"
29 #include "safe-ctype.h"
44 #if BFD_SUPPORTS_PLUGINS
46 #endif /* BFD_SUPPORTS_PLUGINS */
48 #ifndef PATH_SEPARATOR
49 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
50 #define PATH_SEPARATOR ';'
52 #define PATH_SEPARATOR ':'
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)
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);
66 /* The long options. This structure is used for both the option
67 parsing and the help text. */
70 /* Use one dash before long option name. */
72 /* Use two dashes before long option name. */
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
84 /* Don't mention this option in --help output. */
90 /* The long option information. */
92 /* The short option with the same meaning ('\0' if none). */
94 /* The name of the argument (NULL if none). */
96 /* The documentation string. If this is NULL, this is a synonym for
97 the previous option. */
99 enum control_enum control
;
102 static const struct ld_option ld_options
[] =
104 { {NULL
, required_argument
, NULL
, '\0'},
105 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
107 { {"architecture", required_argument
, NULL
, 'A'},
108 'A', N_("ARCH"), N_("Set architecture") , EXACTLY_TWO_DASHES
},
109 { {"format", required_argument
, NULL
, 'b'},
110 'b', N_("TARGET"), N_("Specify target for following input files"),
111 EXACTLY_TWO_DASHES
},
112 { {"mri-script", required_argument
, NULL
, 'c'},
113 'c', N_("FILE"), N_("Read MRI format linker script"), EXACTLY_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 { {"disable-linker-version", no_argument
, NULL
, OPTION_DISABLE_LINKER_VERSION
},
134 '\0', NULL
, N_("Disable the LINKER_VERSION linker script directive"), TWO_DASHES
},
135 { {"enable-linker-version", no_argument
, NULL
, OPTION_ENABLE_LINKER_VERSION
},
136 '\0', NULL
, N_("Enable the LINKER_VERSION linker script directive"), TWO_DASHES
},
137 { {"EB", no_argument
, NULL
, OPTION_EB
},
138 '\0', NULL
, N_("Link big-endian objects"), ONE_DASH
},
139 { {"EL", no_argument
, NULL
, OPTION_EL
},
140 '\0', NULL
, N_("Link little-endian objects"), ONE_DASH
},
141 { {"auxiliary", required_argument
, NULL
, 'f'},
142 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
144 { {"filter", required_argument
, NULL
, 'F'},
145 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
147 { {NULL
, no_argument
, NULL
, '\0'},
148 'g', NULL
, N_("Ignored"), ONE_DASH
},
149 { {"gpsize", required_argument
, NULL
, 'G'},
150 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
152 { {"soname", required_argument
, NULL
, OPTION_SONAME
},
153 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH
},
154 { {"dynamic-linker", required_argument
, NULL
, OPTION_DYNAMIC_LINKER
},
155 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
157 { {"no-dynamic-linker", no_argument
, NULL
, OPTION_NO_DYNAMIC_LINKER
},
158 '\0', NULL
, N_("Produce an executable with no program interpreter header"),
160 { {"library", required_argument
, NULL
, 'l'},
161 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES
},
162 { {"library-path", required_argument
, NULL
, 'L'},
163 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
165 { {"sysroot=<DIRECTORY>", required_argument
, NULL
, OPTION_SYSROOT
},
166 '\0', NULL
, N_("Override the default sysroot location"), TWO_DASHES
},
167 { {NULL
, required_argument
, NULL
, '\0'},
168 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH
},
169 { {"print-map", no_argument
, NULL
, 'M'},
170 'M', NULL
, N_("Print map file on standard output"), TWO_DASHES
},
171 { {"nmagic", no_argument
, NULL
, 'n'},
172 'n', NULL
, N_("Do not page align data"), TWO_DASHES
},
173 { {"omagic", no_argument
, NULL
, 'N'},
174 'N', NULL
, N_("Do not page align data, do not make text readonly"),
175 EXACTLY_TWO_DASHES
},
176 { {"no-omagic", no_argument
, NULL
, OPTION_NO_OMAGIC
},
177 '\0', NULL
, N_("Page align data, make text readonly"),
178 EXACTLY_TWO_DASHES
},
179 { {"output", required_argument
, NULL
, 'o'},
180 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES
},
181 { {NULL
, required_argument
, NULL
, '\0'},
182 'O', NULL
, N_("Optimize output file"), ONE_DASH
},
183 { {"out-implib", required_argument
, NULL
, OPTION_OUT_IMPLIB
},
184 '\0', N_("FILE"), N_("Generate import library"), TWO_DASHES
},
185 #if BFD_SUPPORTS_PLUGINS
186 { {"plugin", required_argument
, NULL
, OPTION_PLUGIN
},
187 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH
},
188 { {"plugin-opt", required_argument
, NULL
, OPTION_PLUGIN_OPT
},
189 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH
},
190 { {"plugin-save-temps", no_argument
, NULL
, OPTION_PLUGIN_SAVE_TEMPS
},
191 '\0', NULL
, N_("Store plugin intermediate files permanently"),
193 { {"flto", optional_argument
, NULL
, OPTION_IGNORE
},
194 '\0', NULL
, N_("Ignored for GCC LTO option compatibility"),
196 { {"flto-partition=", required_argument
, NULL
, OPTION_IGNORE
},
197 '\0', NULL
, N_("Ignored for GCC LTO option compatibility"),
200 { {"plugin", required_argument
, NULL
, OPTION_IGNORE
},
201 '\0', N_("PLUGIN"), N_("Load named plugin (ignored)"), ONE_DASH
},
202 { {"plugin-opt", required_argument
, NULL
, OPTION_IGNORE
},
203 '\0', N_("ARG"), N_("Send arg to last-loaded plugin (ignored)"), ONE_DASH
},
204 #endif /* BFD_SUPPORTS_PLUGINS */
205 { {"fuse-ld=", required_argument
, NULL
, OPTION_IGNORE
},
206 '\0', NULL
, N_("Ignored for GCC linker option compatibility"),
208 { {"map-whole-files", optional_argument
, NULL
, OPTION_IGNORE
},
209 '\0', NULL
, N_("Ignored for gold option compatibility"),
211 { {"no-map-whole-files", optional_argument
, NULL
, OPTION_IGNORE
},
212 '\0', NULL
, N_("Ignored for gold option compatibility"),
214 { {"Qy", no_argument
, NULL
, OPTION_IGNORE
},
215 '\0', NULL
, N_("Ignored for SVR4 compatibility"), ONE_DASH
},
216 { {"emit-relocs", no_argument
, NULL
, 'q'},
217 'q', NULL
, "Generate relocations in final output", TWO_DASHES
},
218 { {"relocatable", no_argument
, NULL
, 'r'},
219 'r', NULL
, N_("Generate relocatable output"), TWO_DASHES
},
220 { {NULL
, no_argument
, NULL
, '\0'},
221 'i', NULL
, NULL
, ONE_DASH
},
222 { {"just-symbols", required_argument
, NULL
, 'R'},
223 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
226 { {"remap-inputs-file", required_argument
, NULL
, OPTION_REMAP_INPUTS_FILE
},
227 '\0', N_("FILE"), "Provide a FILE containing input remapings", TWO_DASHES
},
228 { {"remap-inputs", required_argument
, NULL
, OPTION_REMAP_INPUTS
},
229 '\0', N_("PATTERN=FILE"), "Remap input files matching PATTERN to FILE", TWO_DASHES
},
231 { {"strip-all", no_argument
, NULL
, 's'},
232 's', NULL
, N_("Strip all symbols"), TWO_DASHES
},
233 { {"strip-debug", no_argument
, NULL
, 'S'},
234 'S', NULL
, N_("Strip debugging symbols"), TWO_DASHES
},
235 { {"strip-discarded", no_argument
, NULL
, OPTION_STRIP_DISCARDED
},
236 '\0', NULL
, N_("Strip symbols in discarded sections"), TWO_DASHES
},
237 { {"no-strip-discarded", no_argument
, NULL
, OPTION_NO_STRIP_DISCARDED
},
238 '\0', NULL
, N_("Do not strip symbols in discarded sections"), TWO_DASHES
},
239 { {"trace", no_argument
, NULL
, 't'},
240 't', NULL
, N_("Trace file opens"), TWO_DASHES
},
241 { {"script", required_argument
, NULL
, 'T'},
242 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES
},
243 { {"default-script", required_argument
, NULL
, OPTION_DEFAULT_SCRIPT
},
244 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES
},
245 { {"dT", required_argument
, NULL
, OPTION_DEFAULT_SCRIPT
},
246 '\0', NULL
, NULL
, ONE_DASH
},
247 { {"undefined", required_argument
, NULL
, 'u'},
248 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
250 { {"require-defined", required_argument
, NULL
, OPTION_REQUIRE_DEFINED_SYMBOL
},
251 '\0', N_("SYMBOL"), N_("Require SYMBOL be defined in the final output"),
253 { {"unique", optional_argument
, NULL
, OPTION_UNIQUE
},
254 '\0', N_("[=SECTION]"),
255 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES
},
256 { {"Ur", no_argument
, NULL
, OPTION_UR
},
257 '\0', NULL
, N_("Build global constructor/destructor tables"), ONE_DASH
},
258 { {"version", no_argument
, NULL
, OPTION_VERSION
},
259 'v', NULL
, N_("Print version information"), TWO_DASHES
},
260 { {NULL
, no_argument
, NULL
, '\0'},
261 'V', NULL
, N_("Print version and emulation information"), ONE_DASH
},
262 { {"discard-all", no_argument
, NULL
, 'x'},
263 'x', NULL
, N_("Discard all local symbols"), TWO_DASHES
},
264 { {"discard-locals", no_argument
, NULL
, 'X'},
265 'X', NULL
, N_("Discard temporary local symbols (default)"), TWO_DASHES
},
266 { {"discard-none", no_argument
, NULL
, OPTION_DISCARD_NONE
},
267 '\0', NULL
, N_("Don't discard any local symbols"), TWO_DASHES
},
268 { {"trace-symbol", required_argument
, NULL
, 'y'},
269 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES
},
270 { {NULL
, required_argument
, NULL
, '\0'},
271 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
273 { {"start-group", no_argument
, NULL
, '('},
274 '(', NULL
, N_("Start a group"), TWO_DASHES
},
275 { {"end-group", no_argument
, NULL
, ')'},
276 ')', NULL
, N_("End a group"), TWO_DASHES
},
277 { {"accept-unknown-input-arch", no_argument
, NULL
,
278 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
},
280 N_("Accept input files whose architecture cannot be determined"),
282 { {"no-accept-unknown-input-arch", no_argument
, NULL
,
283 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
},
284 '\0', NULL
, N_("Reject input files whose architecture is unknown"),
287 /* The next two options are deprecated because of their similarity to
288 --as-needed and --no-as-needed. They have been replaced by
289 --copy-dt-needed-entries and --no-copy-dt-needed-entries. */
290 { {"add-needed", no_argument
, NULL
, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
},
291 '\0', NULL
, NULL
, NO_HELP
},
292 { {"no-add-needed", no_argument
, NULL
, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
},
293 '\0', NULL
, NULL
, NO_HELP
},
295 { {"as-needed", no_argument
, NULL
, OPTION_ADD_DT_NEEDED_FOR_REGULAR
},
296 '\0', NULL
, N_("Only set DT_NEEDED for following dynamic libs if used"),
298 { {"no-as-needed", no_argument
, NULL
, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
},
299 '\0', NULL
, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
300 " the command line"),
302 { {"assert", required_argument
, NULL
, OPTION_ASSERT
},
303 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH
},
304 { {"Bdynamic", no_argument
, NULL
, OPTION_CALL_SHARED
},
305 '\0', NULL
, N_("Link against shared libraries"), ONE_DASH
},
306 { {"dy", no_argument
, NULL
, OPTION_CALL_SHARED
},
307 '\0', NULL
, NULL
, ONE_DASH
},
308 { {"call_shared", no_argument
, NULL
, OPTION_CALL_SHARED
},
309 '\0', NULL
, NULL
, ONE_DASH
},
310 { {"Bstatic", no_argument
, NULL
, OPTION_NON_SHARED
},
311 '\0', NULL
, N_("Do not link against shared libraries"), ONE_DASH
},
312 { {"dn", no_argument
, NULL
, OPTION_NON_SHARED
},
313 '\0', NULL
, NULL
, ONE_DASH
},
314 { {"non_shared", no_argument
, NULL
, OPTION_NON_SHARED
},
315 '\0', NULL
, NULL
, ONE_DASH
},
316 { {"static", no_argument
, NULL
, OPTION_NON_SHARED
},
317 '\0', NULL
, NULL
, ONE_DASH
},
318 { {"Bno-symbolic", no_argument
, NULL
, OPTION_NO_SYMBOLIC
},
319 '\0', NULL
, N_("Don't bind global references locally"), ONE_DASH
},
320 { {"Bsymbolic", no_argument
, NULL
, OPTION_SYMBOLIC
},
321 '\0', NULL
, N_("Bind global references locally"), ONE_DASH
},
322 { {"Bsymbolic-functions", no_argument
, NULL
, OPTION_SYMBOLIC_FUNCTIONS
},
323 '\0', NULL
, N_("Bind global function references locally"), ONE_DASH
},
324 { {"check-sections", no_argument
, NULL
, OPTION_CHECK_SECTIONS
},
325 '\0', NULL
, N_("Check section addresses for overlaps (default)"),
327 { {"no-check-sections", no_argument
, NULL
, OPTION_NO_CHECK_SECTIONS
},
328 '\0', NULL
, N_("Do not check section addresses for overlaps"),
330 { {"copy-dt-needed-entries", no_argument
, NULL
,
331 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
},
332 '\0', NULL
, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
334 { {"no-copy-dt-needed-entries", no_argument
, NULL
,
335 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
},
336 '\0', NULL
, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
339 { {"cref", no_argument
, NULL
, OPTION_CREF
},
340 '\0', NULL
, N_("Output cross reference table"), TWO_DASHES
},
341 { {"defsym", required_argument
, NULL
, OPTION_DEFSYM
},
342 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES
},
343 { {"demangle", optional_argument
, NULL
, OPTION_DEMANGLE
},
344 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
346 { {"disable-multiple-abs-defs", no_argument
, NULL
,
347 OPTION_DISABLE_MULTIPLE_DEFS_ABS
},
348 '\0', NULL
, N_("Do not allow multiple definitions with symbols included\n"
349 " in filename invoked by -R "
350 "or --just-symbols"),
352 { {"embedded-relocs", no_argument
, NULL
, OPTION_EMBEDDED_RELOCS
},
353 '\0', NULL
, N_("Generate embedded relocs"), TWO_DASHES
},
354 { {"fatal-warnings", no_argument
, NULL
, OPTION_WARN_FATAL
},
355 '\0', NULL
, N_("Treat warnings as errors"),
357 { {"no-fatal-warnings", no_argument
, NULL
, OPTION_NO_WARN_FATAL
},
358 '\0', NULL
, N_("Do not treat warnings as errors (default)"),
360 { {"fini", required_argument
, NULL
, OPTION_FINI
},
361 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH
},
362 { {"force-exe-suffix", no_argument
, NULL
, OPTION_FORCE_EXE_SUFFIX
},
363 '\0', NULL
, N_("Force generation of file with .exe suffix"), TWO_DASHES
},
364 { {"gc-sections", no_argument
, NULL
, OPTION_GC_SECTIONS
},
365 '\0', NULL
, N_("Remove unused sections (on some targets)"),
367 { {"no-gc-sections", no_argument
, NULL
, OPTION_NO_GC_SECTIONS
},
368 '\0', NULL
, N_("Don't remove unused sections (default)"),
370 { {"print-gc-sections", no_argument
, NULL
, OPTION_PRINT_GC_SECTIONS
},
371 '\0', NULL
, N_("List removed unused sections on stderr"),
373 { {"no-print-gc-sections", no_argument
, NULL
, OPTION_NO_PRINT_GC_SECTIONS
},
374 '\0', NULL
, N_("Do not list removed unused sections"),
376 { {"gc-keep-exported", no_argument
, NULL
, OPTION_GC_KEEP_EXPORTED
},
377 '\0', NULL
, N_("Keep exported symbols when removing unused sections"),
379 { {"hash-size=<NUMBER>", required_argument
, NULL
, OPTION_HASH_SIZE
},
380 '\0', NULL
, N_("Set default hash table size close to <NUMBER>"),
382 { {"help", no_argument
, NULL
, OPTION_HELP
},
383 '\0', NULL
, N_("Print option help"), TWO_DASHES
},
384 { {"init", required_argument
, NULL
, OPTION_INIT
},
385 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH
},
386 { {"Map", required_argument
, NULL
, OPTION_MAP
},
387 '\0', N_("FILE/DIR"), N_("Write a linker map to FILE or DIR/<outputname>.map"), ONE_DASH
},
388 { {"no-define-common", no_argument
, NULL
, OPTION_NO_DEFINE_COMMON
},
389 '\0', NULL
, N_("Do not define Common storage"), TWO_DASHES
},
390 { {"no-demangle", no_argument
, NULL
, OPTION_NO_DEMANGLE
},
391 '\0', NULL
, N_("Do not demangle symbol names"), TWO_DASHES
},
392 { {"no-keep-memory", no_argument
, NULL
, OPTION_NO_KEEP_MEMORY
},
393 '\0', NULL
, N_("Use less memory and more disk I/O"), TWO_DASHES
},
394 { {"no-undefined", no_argument
, NULL
, OPTION_NO_UNDEFINED
},
395 '\0', NULL
, N_("Do not allow unresolved references in object files"),
397 { {"no-warnings", no_argument
, NULL
, OPTION_NO_WARNINGS
},
398 'w', NULL
, N_("Do not display any warning or error messages"),
400 { {"allow-shlib-undefined", no_argument
, NULL
, OPTION_ALLOW_SHLIB_UNDEFINED
},
401 '\0', NULL
, N_("Allow unresolved references in shared libraries"),
403 { {"no-allow-shlib-undefined", no_argument
, NULL
,
404 OPTION_NO_ALLOW_SHLIB_UNDEFINED
},
405 '\0', NULL
, N_("Do not allow unresolved references in shared libs"),
407 { {"allow-multiple-definition", no_argument
, NULL
,
408 OPTION_ALLOW_MULTIPLE_DEFINITION
},
409 '\0', NULL
, N_("Allow multiple definitions"), TWO_DASHES
},
410 #if SUPPORT_ERROR_HANDLING_SCRIPT
411 { {"error-handling-script", required_argument
, NULL
,
412 OPTION_ERROR_HANDLING_SCRIPT
},
413 '\0', N_("SCRIPT"), N_("Provide a script to help with undefined symbol errors"), TWO_DASHES
},
415 { {"undefined-version", no_argument
, NULL
, OPTION_UNDEFINED_VERSION
},
416 '\0', NULL
, N_("Allow undefined version"), EXACTLY_TWO_DASHES
},
417 { {"no-undefined-version", no_argument
, NULL
, OPTION_NO_UNDEFINED_VERSION
},
418 '\0', NULL
, N_("Disallow undefined version"), TWO_DASHES
},
419 { {"default-symver", no_argument
, NULL
, OPTION_DEFAULT_SYMVER
},
420 '\0', NULL
, N_("Create default symbol version"), TWO_DASHES
},
421 { {"default-imported-symver", no_argument
, NULL
,
422 OPTION_DEFAULT_IMPORTED_SYMVER
},
423 '\0', NULL
, N_("Create default symbol version for imported symbols"),
425 { {"no-warn-mismatch", no_argument
, NULL
, OPTION_NO_WARN_MISMATCH
},
426 '\0', NULL
, N_("Don't warn about mismatched input files"), TWO_DASHES
},
427 { {"no-warn-search-mismatch", no_argument
, NULL
,
428 OPTION_NO_WARN_SEARCH_MISMATCH
},
429 '\0', NULL
, N_("Don't warn on finding an incompatible library"),
431 { {"no-whole-archive", no_argument
, NULL
, OPTION_NO_WHOLE_ARCHIVE
},
432 '\0', NULL
, N_("Turn off --whole-archive"), TWO_DASHES
},
433 { {"noinhibit-exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
434 '\0', NULL
, N_("Create an output file even if errors occur"),
436 { {"noinhibit_exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
437 '\0', NULL
, NULL
, NO_HELP
},
438 { {"nostdlib", no_argument
, NULL
, OPTION_NOSTDLIB
},
439 '\0', NULL
, N_("Only use library directories specified on\n"
440 " the command line"),
442 { {"oformat", required_argument
, NULL
, OPTION_OFORMAT
},
443 '\0', N_("TARGET"), N_("Specify target of output file"),
444 EXACTLY_TWO_DASHES
},
445 { {"print-output-format", no_argument
, NULL
, OPTION_PRINT_OUTPUT_FORMAT
},
446 '\0', NULL
, N_("Print default output format"), TWO_DASHES
},
447 { {"print-sysroot", no_argument
, NULL
, OPTION_PRINT_SYSROOT
},
448 '\0', NULL
, N_("Print current sysroot"), TWO_DASHES
},
449 { {"qmagic", no_argument
, NULL
, OPTION_IGNORE
},
450 '\0', NULL
, N_("Ignored for Linux compatibility"), ONE_DASH
},
451 { {"reduce-memory-overheads", no_argument
, NULL
,
452 OPTION_REDUCE_MEMORY_OVERHEADS
},
453 '\0', NULL
, N_("Reduce memory overheads, possibly taking much longer"),
455 { {"max-cache-size=SIZE", required_argument
, NULL
,
456 OPTION_MAX_CACHE_SIZE
},
457 '\0', NULL
, N_("Set the maximum cache size to SIZE bytes"),
459 { {"relax", no_argument
, NULL
, OPTION_RELAX
},
460 '\0', NULL
, N_("Reduce code size by using target specific optimizations"), TWO_DASHES
},
461 { {"no-relax", no_argument
, NULL
, OPTION_NO_RELAX
},
462 '\0', NULL
, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES
},
463 { {"retain-symbols-file", required_argument
, NULL
,
464 OPTION_RETAIN_SYMBOLS_FILE
},
465 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES
},
466 { {"rpath", required_argument
, NULL
, OPTION_RPATH
},
467 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH
},
468 { {"rpath-link", required_argument
, NULL
, OPTION_RPATH_LINK
},
469 '\0', N_("PATH"), N_("Set link time shared library search path"),
471 { {"shared", no_argument
, NULL
, OPTION_SHARED
},
472 '\0', NULL
, N_("Create a shared library"), ONE_DASH
},
473 { {"Bshareable", no_argument
, NULL
, OPTION_SHARED
}, /* FreeBSD. */
474 '\0', NULL
, NULL
, ONE_DASH
},
475 { {"pie", no_argument
, NULL
, OPTION_PIE
},
476 '\0', NULL
, N_("Create a position independent executable"), ONE_DASH
},
477 { {"pic-executable", no_argument
, NULL
, OPTION_PIE
},
478 '\0', NULL
, NULL
, TWO_DASHES
},
479 { {"no-pie", no_argument
, NULL
, OPTION_NO_PIE
},
480 '\0', NULL
, N_("Create a position dependent executable (default)"), ONE_DASH
},
481 { {"sort-common", optional_argument
, NULL
, OPTION_SORT_COMMON
},
482 '\0', N_("[=ascending|descending]"),
483 N_("Sort common symbols by alignment [in specified order]"),
485 { {"sort_common", no_argument
, NULL
, OPTION_SORT_COMMON
},
486 '\0', NULL
, NULL
, NO_HELP
},
487 { {"sort-section", required_argument
, NULL
, OPTION_SORT_SECTION
},
488 '\0', N_("name|alignment"),
489 N_("Sort sections by name or maximum alignment"), TWO_DASHES
},
490 { {"section-ordering-file", required_argument
, NULL
, OPTION_SECTION_ORDERING_FILE
},
492 N_("Sort sections by statements in FILE"), TWO_DASHES
},
493 { {"spare-dynamic-tags", required_argument
, NULL
, OPTION_SPARE_DYNAMIC_TAGS
},
494 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
496 { {"split-by-file", optional_argument
, NULL
, OPTION_SPLIT_BY_FILE
},
497 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
499 { {"split-by-reloc", optional_argument
, NULL
, OPTION_SPLIT_BY_RELOC
},
500 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
502 { {"stats", no_argument
, NULL
, OPTION_STATS
},
503 '\0', NULL
, N_("Print memory usage statistics"), TWO_DASHES
},
504 { {"target-help", no_argument
, NULL
, OPTION_TARGET_HELP
},
505 '\0', NULL
, N_("Display target specific options"), TWO_DASHES
},
506 { {"task-link", required_argument
, NULL
, OPTION_TASK_LINK
},
507 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES
},
508 { {"traditional-format", no_argument
, NULL
, OPTION_TRADITIONAL_FORMAT
},
509 '\0', NULL
, N_("Use same format as native linker"), TWO_DASHES
},
510 { {"section-start", required_argument
, NULL
, OPTION_SECTION_START
},
511 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
513 { {"Tbss", required_argument
, NULL
, OPTION_TBSS
},
514 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH
},
515 { {"Tdata", required_argument
, NULL
, OPTION_TDATA
},
516 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH
},
517 { {"Ttext", required_argument
, NULL
, OPTION_TTEXT
},
518 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH
},
519 { {"Ttext-segment", required_argument
, NULL
, OPTION_TTEXT_SEGMENT
},
520 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH
},
521 { {"Trodata-segment", required_argument
, NULL
, OPTION_TRODATA_SEGMENT
},
522 '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH
},
523 { {"Tldata-segment", required_argument
, NULL
, OPTION_TLDATA_SEGMENT
},
524 '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH
},
525 { {"unresolved-symbols=<method>", required_argument
, NULL
,
526 OPTION_UNRESOLVED_SYMBOLS
},
527 '\0', NULL
, N_("How to handle unresolved symbols. <method> is:\n"
528 " ignore-all, report-all, ignore-in-object-files,\n"
529 " ignore-in-shared-libs"),
531 { {"verbose", optional_argument
, NULL
, OPTION_VERBOSE
},
532 '\0', N_("[=NUMBER]"),
533 N_("Output lots of information during link"), TWO_DASHES
},
534 { {"dll-verbose", no_argument
, NULL
, OPTION_VERBOSE
}, /* Linux. */
535 '\0', NULL
, NULL
, NO_HELP
},
536 { {"version-script", required_argument
, NULL
, OPTION_VERSION_SCRIPT
},
537 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES
},
538 { {"version-exports-section", required_argument
, NULL
,
539 OPTION_VERSION_EXPORTS_SECTION
},
540 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
541 " SYMBOL as the version."),
543 { {"dynamic-list-data", no_argument
, NULL
, OPTION_DYNAMIC_LIST_DATA
},
544 '\0', NULL
, N_("Add data symbols to dynamic list"), TWO_DASHES
},
545 { {"dynamic-list-cpp-new", no_argument
, NULL
, OPTION_DYNAMIC_LIST_CPP_NEW
},
546 '\0', NULL
, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES
},
547 { {"dynamic-list-cpp-typeinfo", no_argument
, NULL
, OPTION_DYNAMIC_LIST_CPP_TYPEINFO
},
548 '\0', NULL
, N_("Use C++ typeinfo dynamic list"), TWO_DASHES
},
549 { {"dynamic-list", required_argument
, NULL
, OPTION_DYNAMIC_LIST
},
550 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES
},
551 { {"export-dynamic-symbol", required_argument
, NULL
, OPTION_EXPORT_DYNAMIC_SYMBOL
},
552 '\0', N_("SYMBOL"), N_("Export the specified symbol"), EXACTLY_TWO_DASHES
},
553 { {"export-dynamic-symbol-list", required_argument
, NULL
, OPTION_EXPORT_DYNAMIC_SYMBOL_LIST
},
554 '\0', N_("FILE"), N_("Read export dynamic symbol list"), EXACTLY_TWO_DASHES
},
555 { {"warn-common", no_argument
, NULL
, OPTION_WARN_COMMON
},
556 '\0', NULL
, N_("Warn about duplicate common symbols"), TWO_DASHES
},
557 { {"warn-constructors", no_argument
, NULL
, OPTION_WARN_CONSTRUCTORS
},
558 '\0', NULL
, N_("Warn if global constructors/destructors are seen"),
561 { {"error-execstack", no_argument
, NULL
, OPTION_ERROR_EXECSTACK
},
562 '\0', NULL
, NULL
, TWO_DASHES
},
563 { {"no-error-execstack", no_argument
, NULL
, OPTION_NO_ERROR_EXECSTACK
},
564 '\0', NULL
, NULL
, TWO_DASHES
},
565 { {"warn-execstack-objects", no_argument
, NULL
, OPTION_WARN_EXECSTACK_OBJECTS
},
566 '\0', NULL
, NULL
, TWO_DASHES
},
567 { {"warn-execstack", no_argument
, NULL
, OPTION_WARN_EXECSTACK
},
568 '\0', NULL
, NULL
, TWO_DASHES
},
569 { {"no-warn-execstack", no_argument
, NULL
, OPTION_NO_WARN_EXECSTACK
},
570 '\0', NULL
, NULL
, TWO_DASHES
},
572 { {"error-rwx-segments", no_argument
, NULL
, OPTION_ERROR_RWX_SEGMENTS
},
573 '\0', NULL
, NULL
, TWO_DASHES
},
574 { {"no-error-rwx-segments", no_argument
, NULL
, OPTION_NO_ERROR_RWX_SEGMENTS
},
575 '\0', NULL
, NULL
, TWO_DASHES
},
576 { {"warn-rwx-segments", no_argument
, NULL
, OPTION_WARN_RWX_SEGMENTS
},
577 '\0', NULL
, NULL
, TWO_DASHES
},
578 { {"no-warn-rwx-segments", no_argument
, NULL
, OPTION_NO_WARN_RWX_SEGMENTS
},
579 '\0', NULL
, NULL
, TWO_DASHES
},
581 { {"warn-multiple-gp", no_argument
, NULL
, OPTION_WARN_MULTIPLE_GP
},
582 '\0', NULL
, N_("Warn if the multiple GP values are used"), TWO_DASHES
},
583 { {"warn-once", no_argument
, NULL
, OPTION_WARN_ONCE
},
584 '\0', NULL
, N_("Warn only once per undefined symbol"), TWO_DASHES
},
585 { {"warn-section-align", no_argument
, NULL
, OPTION_WARN_SECTION_ALIGN
},
586 '\0', NULL
, N_("Warn if start of section changes due to alignment"),
588 { {"warn-textrel", no_argument
, NULL
, OPTION_WARN_TEXTREL
},
590 #if DEFAULT_LD_TEXTREL_CHECK_WARNING
591 N_("Warn if output has DT_TEXTREL (default)"),
593 N_("Warn if output has DT_TEXTREL"),
596 { {"warn-shared-textrel", no_argument
, NULL
, OPTION_WARN_TEXTREL
},
597 '\0', NULL
, NULL
, NO_HELP
},
598 { {"warn-alternate-em", no_argument
, NULL
, OPTION_WARN_ALTERNATE_EM
},
599 '\0', NULL
, N_("Warn if an object has alternate ELF machine code"),
601 { {"warn-unresolved-symbols", no_argument
, NULL
,
602 OPTION_WARN_UNRESOLVED_SYMBOLS
},
603 '\0', NULL
, N_("Report unresolved symbols as warnings"), TWO_DASHES
},
604 { {"error-unresolved-symbols", no_argument
, NULL
,
605 OPTION_ERROR_UNRESOLVED_SYMBOLS
},
606 '\0', NULL
, N_("Report unresolved symbols as errors"), TWO_DASHES
},
607 { {"whole-archive", no_argument
, NULL
, OPTION_WHOLE_ARCHIVE
},
608 '\0', NULL
, N_("Include all objects from following archives"),
610 { {"wrap", required_argument
, NULL
, OPTION_WRAP
},
611 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES
},
612 { {"ignore-unresolved-symbol", required_argument
, NULL
,
613 OPTION_IGNORE_UNRESOLVED_SYMBOL
},
615 N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES
},
616 { {"push-state", no_argument
, NULL
, OPTION_PUSH_STATE
},
617 '\0', NULL
, N_("Push state of flags governing input file handling"),
619 { {"pop-state", no_argument
, NULL
, OPTION_POP_STATE
},
620 '\0', NULL
, N_("Pop state of flags governing input file handling"),
622 { {"print-memory-usage", no_argument
, NULL
, OPTION_PRINT_MEMORY_USAGE
},
623 '\0', NULL
, N_("Report target memory usage"), TWO_DASHES
},
624 { {"orphan-handling", required_argument
, NULL
, OPTION_ORPHAN_HANDLING
},
625 '\0', N_("=MODE"), N_("Control how orphan sections are handled."),
627 { {"print-map-discarded", no_argument
, NULL
, OPTION_PRINT_MAP_DISCARDED
},
628 '\0', NULL
, N_("Show discarded sections in map file output (default)"),
630 { {"no-print-map-discarded", no_argument
, NULL
, OPTION_NO_PRINT_MAP_DISCARDED
},
631 '\0', NULL
, N_("Do not show discarded sections in map file output"),
633 { {"print-map-locals", no_argument
, NULL
, OPTION_PRINT_MAP_LOCALS
},
634 '\0', NULL
, N_("Show local symbols in map file output"),
636 { {"no-print-map-locals", no_argument
, NULL
, OPTION_NO_PRINT_MAP_LOCALS
},
637 '\0', NULL
, N_("Do not show local symbols in map file output (default)"),
639 { {"ctf-variables", no_argument
, NULL
, OPTION_CTF_VARIABLES
},
640 '\0', NULL
, N_("Emit names and types of static variables in CTF"),
642 { {"no-ctf-variables", no_argument
, NULL
, OPTION_NO_CTF_VARIABLES
},
643 '\0', NULL
, N_("Do not emit names and types of static variables in CTF"),
645 { {"ctf-share-types=<method>", required_argument
, NULL
,
646 OPTION_CTF_SHARE_TYPES
},
647 '\0', NULL
, N_("How to share CTF types between translation units.\n"
648 " <method> is: share-unconflicted (default),\n"
649 " share-duplicated"),
653 #define OPTION_COUNT ARRAY_SIZE (ld_options)
656 parse_args (unsigned argc
, char **argv
)
661 char *default_dirlist
= NULL
;
663 struct option
*longopts
;
664 struct option
*really_longopts
;
671 } opt_symbolic
= symbolic_unset
;
672 enum dynamic_list_enum
674 dynamic_list_unset
= 0,
677 } opt_dynamic_list
= dynamic_list_unset
;
678 struct bfd_elf_dynamic_list
*export_list
= NULL
;
680 shortopts
= (char *) xmalloc (OPTION_COUNT
* 3 + 2);
681 longopts
= (struct option
*)
682 xmalloc (sizeof (*longopts
) * (OPTION_COUNT
+ 1));
683 really_longopts
= (struct option
*)
684 xmalloc (sizeof (*really_longopts
) * (OPTION_COUNT
+ 1));
686 /* Starting the short option string with '-' is for programs that
687 expect options and other ARGV-elements in any order and that care about
688 the ordering of the two. We describe each non-option ARGV-element
689 as if it were the argument of an option with character code 1. */
694 for (i
= 0; i
< OPTION_COUNT
; i
++)
696 if (ld_options
[i
].shortopt
!= '\0')
698 shortopts
[is
] = ld_options
[i
].shortopt
;
700 if (ld_options
[i
].opt
.has_arg
== required_argument
701 || ld_options
[i
].opt
.has_arg
== optional_argument
)
705 if (ld_options
[i
].opt
.has_arg
== optional_argument
)
712 if (ld_options
[i
].opt
.name
!= NULL
)
714 if (ld_options
[i
].control
== EXACTLY_TWO_DASHES
)
716 really_longopts
[irl
] = ld_options
[i
].opt
;
721 longopts
[il
] = ld_options
[i
].opt
;
726 shortopts
[is
] = '\0';
727 longopts
[il
].name
= NULL
;
728 really_longopts
[irl
].name
= NULL
;
730 ldemul_add_options (is
, &shortopts
, il
, &longopts
, irl
, &really_longopts
);
732 /* The -G option is ambiguous on different platforms. Sometimes it
733 specifies the largest data size to put into the small data
734 section. Sometimes it is equivalent to --shared. Unfortunately,
735 the first form takes an argument, while the second does not.
737 We need to permit the --shared form because on some platforms,
738 such as Solaris, gcc -shared will pass -G to the linker.
740 To permit either usage, we look through the argument list. If we
741 find -G not followed by a number, we change it into --shared.
742 This will work for most normal cases. */
743 for (i
= 1; i
< argc
; i
++)
744 if (strcmp (argv
[i
], "-G") == 0
746 || ! ISDIGIT (argv
[i
+ 1][0])))
747 argv
[i
] = (char *) "--shared";
749 /* Because we permit long options to start with a single dash, and
750 we have a --library option, and the -l option is conventionally
751 used with an immediately following argument, we can have bad
752 results if somebody tries to use -l with a library whose name
753 happens to start with "ibrary", as in -li. We avoid problems by
754 simply turning -l into --library. This means that users will
755 have to use two dashes in order to use --library, which is OK
756 since that's how it is documented.
758 FIXME: It's possible that this problem can arise for other short
759 options as well, although the user does always have the recourse
760 of adding a space between the option and the argument. */
761 for (i
= 1; i
< argc
; i
++)
763 if (argv
[i
][0] == '-'
765 && argv
[i
][2] != '\0')
769 n
= (char *) xmalloc (strlen (argv
[i
]) + 20);
770 sprintf (n
, "--library=%s", argv
[i
] + 2);
780 static unsigned int defsym_count
;
782 /* Using last_optind lets us avoid calling ldemul_parse_args
783 multiple times on a single option, which would lead to
784 confusion in the internal static variables maintained by
785 getopt. This could otherwise happen for an argument like
786 -nx, in which the -n is parsed as a single option, and we
787 loop around to pick up the -x. */
788 if (optind
!= last_optind
)
789 if (ldemul_parse_args (argc
, argv
))
792 /* getopt_long_only is like getopt_long, but '-' as well as '--'
793 can indicate a long option. */
795 last_optind
= optind
;
796 optc
= getopt_long_only (argc
, argv
, shortopts
, longopts
, &longind
);
799 optind
= last_optind
;
800 optc
= getopt_long (argc
, argv
, "-", really_longopts
, &longind
);
802 /* Attempt to detect grouped short options, eg: "-non-start".
803 Accepting such options is error prone as it is not clear if the user
804 intended "-n -o n-start" or "--non-start". */
805 else if (longind
== 0 /* This is a short option. */
806 && optc
> 32 /* It is a valid option. */
807 /* The character is not the second character of argv[last_optind]. */
808 && optc
!= argv
[last_optind
][1])
811 einfo (_("%F%P: Error: unable to disambiguate: %s (did you mean -%s ?)\n"),
812 argv
[last_optind
], argv
[last_optind
]);
814 einfo (_("%P: Warning: grouped short command line options are deprecated: %s\n"), argv
[last_optind
]);
817 if (ldemul_handle_option (optc
))
827 /* If the last word on the command line is an option that
828 requires an argument, getopt will refuse to recognise it.
829 Try to catch such options here and issue a more helpful
830 error message than just "unrecognized option". */
833 for (opt
= ARRAY_SIZE (ld_options
); opt
--;)
834 if (ld_options
[opt
].opt
.has_arg
== required_argument
835 /* FIXME: There are a few short options that do not
836 have long equivalents, but which require arguments.
837 We should handle them too. */
838 && ld_options
[opt
].opt
.name
!= NULL
839 && strcmp (argv
[last_optind
] + ld_options
[opt
].control
, ld_options
[opt
].opt
.name
) == 0)
841 einfo (_("%P: %s: missing argument\n"), argv
[last_optind
]);
846 einfo (_("%P: unrecognized option '%s'\n"), argv
[last_optind
]);
851 einfo (_("%F%P: use the --help option for usage information\n"));
854 case 1: /* File name. */
855 lang_add_input_file (optarg
, lang_input_file_is_file_enum
, NULL
);
861 /* For HP/UX compatibility. Actually -a shared should mean
862 ``use only shared libraries'' but, then, we don't
863 currently support shared libraries on HP/UX anyhow. */
864 if (strcmp (optarg
, "archive") == 0)
865 input_flags
.dynamic
= false;
866 else if (strcmp (optarg
, "shared") == 0
867 || strcmp (optarg
, "default") == 0)
868 input_flags
.dynamic
= true;
870 einfo (_("%F%P: unrecognized -a option `%s'\n"), optarg
);
873 /* FIXME: We just ignore these, but we should handle them. */
874 if (strcmp (optarg
, "definitions") == 0)
876 else if (strcmp (optarg
, "nodefinitions") == 0)
878 else if (strcmp (optarg
, "nosymbolic") == 0)
880 else if (strcmp (optarg
, "pure-text") == 0)
883 einfo (_("%F%P: unrecognized -assert option `%s'\n"), optarg
);
886 ldfile_add_arch (optarg
);
889 lang_add_target (optarg
);
892 ldfile_open_command_file (optarg
);
893 parser_input
= input_mri_script
;
896 case OPTION_CALL_SHARED
:
897 input_flags
.dynamic
= true;
899 case OPTION_NON_SHARED
:
900 input_flags
.dynamic
= false;
903 command_line
.cref
= true;
904 link_info
.notice_all
= true;
907 command_line
.force_common_definition
= true;
909 case OPTION_FORCE_GROUP_ALLOCATION
:
910 command_line
.force_group_allocation
= true;
914 lex_redirect (optarg
, "--defsym", ++defsym_count
);
915 parser_input
= input_defsym
;
919 case OPTION_DEMANGLE
:
923 enum demangling_styles style
;
925 style
= cplus_demangle_name_to_style (optarg
);
926 if (style
== unknown_demangling
)
927 einfo (_("%F%P: unknown demangling style `%s'\n"),
930 cplus_demangle_set_style (style
);
933 case 'I': /* Used on Solaris. */
934 case OPTION_DYNAMIC_LINKER
:
935 command_line
.interpreter
= optarg
;
936 link_info
.nointerp
= 0;
938 case OPTION_NO_DYNAMIC_LINKER
:
939 link_info
.nointerp
= 1;
942 /* Already handled in ldmain.c. */
945 command_line
.endian
= ENDIAN_BIG
;
948 command_line
.endian
= ENDIAN_LITTLE
;
950 case OPTION_EMBEDDED_RELOCS
:
951 command_line
.embedded_relocs
= true;
953 case OPTION_EXPORT_DYNAMIC
:
954 case 'E': /* HP/UX compatibility. */
955 link_info
.export_dynamic
= true;
957 case OPTION_NO_EXPORT_DYNAMIC
:
958 link_info
.export_dynamic
= false;
960 case OPTION_NON_CONTIGUOUS_REGIONS
:
961 link_info
.non_contiguous_regions
= true;
963 case OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS
:
964 link_info
.non_contiguous_regions_warnings
= true;
967 case OPTION_ERROR_EXECSTACK
:
968 link_info
.error_execstack
= 1;
970 case OPTION_NO_ERROR_EXECSTACK
:
971 link_info
.error_execstack
= 0;
973 case OPTION_WARN_EXECSTACK_OBJECTS
:
974 link_info
.warn_execstack
= 2;
976 case OPTION_WARN_EXECSTACK
:
977 link_info
.warn_execstack
= 1;
979 case OPTION_NO_WARN_EXECSTACK
:
980 link_info
.warn_execstack
= 0;
983 case OPTION_ERROR_RWX_SEGMENTS
:
984 link_info
.warn_is_error_for_rwx_segments
= 1;
986 case OPTION_NO_ERROR_RWX_SEGMENTS
:
987 link_info
.warn_is_error_for_rwx_segments
= 0;
989 case OPTION_WARN_RWX_SEGMENTS
:
990 link_info
.no_warn_rwx_segments
= 0;
991 link_info
.user_warn_rwx_segments
= 1;
993 case OPTION_NO_WARN_RWX_SEGMENTS
:
994 link_info
.no_warn_rwx_segments
= 1;
995 link_info
.user_warn_rwx_segments
= 1;
999 lang_add_entry (optarg
, true);
1002 if (command_line
.auxiliary_filters
== NULL
)
1004 command_line
.auxiliary_filters
= (char **)
1005 xmalloc (2 * sizeof (char *));
1006 command_line
.auxiliary_filters
[0] = optarg
;
1007 command_line
.auxiliary_filters
[1] = NULL
;
1015 for (p
= command_line
.auxiliary_filters
; *p
!= NULL
; p
++)
1017 command_line
.auxiliary_filters
= (char **)
1018 xrealloc (command_line
.auxiliary_filters
,
1019 (c
+ 2) * sizeof (char *));
1020 command_line
.auxiliary_filters
[c
] = optarg
;
1021 command_line
.auxiliary_filters
[c
+ 1] = NULL
;
1025 command_line
.filter_shlib
= optarg
;
1027 case OPTION_FORCE_EXE_SUFFIX
:
1028 command_line
.force_exe_suffix
= true;
1033 g_switch_value
= strtoul (optarg
, &end
, 0);
1035 einfo (_("%F%P: invalid number `%s'\n"), optarg
);
1041 case OPTION_GC_SECTIONS
:
1042 link_info
.gc_sections
= true;
1044 case OPTION_PRINT_GC_SECTIONS
:
1045 link_info
.print_gc_sections
= true;
1047 case OPTION_GC_KEEP_EXPORTED
:
1048 link_info
.gc_keep_exported
= true;
1055 ldfile_add_library_path (optarg
, true);
1058 lang_add_input_file (optarg
, lang_input_file_is_l_enum
, NULL
);
1061 config
.map_filename
= "-";
1064 /* Ignore. Was handled in a pre-parse. */
1067 config
.map_filename
= optarg
;
1070 config
.text_read_only
= false;
1071 config
.magic_demand_paged
= false;
1072 input_flags
.dynamic
= false;
1074 case OPTION_NO_OMAGIC
:
1075 config
.text_read_only
= true;
1076 config
.magic_demand_paged
= true;
1077 /* NB/ Does not set input_flags.dynamic to TRUE.
1078 Use --call-shared or -Bdynamic for this. */
1081 config
.text_read_only
= true;
1082 config
.magic_demand_paged
= false;
1083 input_flags
.dynamic
= false;
1085 case OPTION_NO_DEFINE_COMMON
:
1086 link_info
.inhibit_common_definition
= true;
1088 case OPTION_NO_DEMANGLE
:
1091 case OPTION_NO_GC_SECTIONS
:
1092 link_info
.gc_sections
= false;
1094 case OPTION_NO_PRINT_GC_SECTIONS
:
1095 link_info
.print_gc_sections
= false;
1097 case OPTION_NO_KEEP_MEMORY
:
1098 link_info
.keep_memory
= false;
1100 case OPTION_NO_UNDEFINED
:
1101 link_info
.unresolved_syms_in_objects
= RM_DIAGNOSE
;
1103 case OPTION_ALLOW_SHLIB_UNDEFINED
:
1104 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
1106 case OPTION_NO_ALLOW_SHLIB_UNDEFINED
:
1107 link_info
.unresolved_syms_in_shared_libs
= RM_DIAGNOSE
;
1109 case OPTION_UNRESOLVED_SYMBOLS
:
1110 if (strcmp (optarg
, "ignore-all") == 0)
1112 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
1113 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
1115 else if (strcmp (optarg
, "report-all") == 0)
1117 link_info
.unresolved_syms_in_objects
= RM_DIAGNOSE
;
1118 link_info
.unresolved_syms_in_shared_libs
= RM_DIAGNOSE
;
1120 else if (strcmp (optarg
, "ignore-in-object-files") == 0)
1122 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
1123 link_info
.unresolved_syms_in_shared_libs
= RM_DIAGNOSE
;
1125 else if (strcmp (optarg
, "ignore-in-shared-libs") == 0)
1127 link_info
.unresolved_syms_in_objects
= RM_DIAGNOSE
;
1128 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
1131 einfo (_("%F%P: bad --unresolved-symbols option: %s\n"), optarg
);
1133 case OPTION_WARN_UNRESOLVED_SYMBOLS
:
1134 link_info
.warn_unresolved_syms
= true;
1136 case OPTION_ERROR_UNRESOLVED_SYMBOLS
:
1137 link_info
.warn_unresolved_syms
= false;
1139 case OPTION_ALLOW_MULTIPLE_DEFINITION
:
1140 link_info
.allow_multiple_definition
= true;
1143 #if SUPPORT_ERROR_HANDLING_SCRIPT
1144 case OPTION_ERROR_HANDLING_SCRIPT
:
1145 /* FIXME: Should we warn if the script is being overridden by another ?
1146 Or maybe they should be chained together ? */
1147 error_handling_script
= optarg
;
1151 case OPTION_ENABLE_LINKER_VERSION
:
1152 enable_linker_version
= true;
1154 case OPTION_DISABLE_LINKER_VERSION
:
1155 enable_linker_version
= false;
1158 case OPTION_UNDEFINED_VERSION
:
1159 link_info
.allow_undefined_version
= true;
1161 case OPTION_NO_UNDEFINED_VERSION
:
1162 link_info
.allow_undefined_version
= false;
1164 case OPTION_DEFAULT_SYMVER
:
1165 link_info
.create_default_symver
= true;
1167 case OPTION_DEFAULT_IMPORTED_SYMVER
:
1168 link_info
.default_imported_symver
= true;
1170 case OPTION_NO_WARN_MISMATCH
:
1171 command_line
.warn_mismatch
= false;
1173 case OPTION_NO_WARN_SEARCH_MISMATCH
:
1174 command_line
.warn_search_mismatch
= false;
1176 case OPTION_NOINHIBIT_EXEC
:
1177 force_make_executable
= true;
1179 case OPTION_NOSTDLIB
:
1180 config
.only_cmd_line_lib_dirs
= true;
1182 case OPTION_NO_WHOLE_ARCHIVE
:
1183 input_flags
.whole_archive
= false;
1186 /* FIXME "-O<non-digits> <value>" used to set the address of
1187 section <non-digits>. Was this for compatibility with
1188 something, or can we create a new option to do that
1189 (with a syntax similar to -defsym)?
1190 getopt can't handle two args to an option without kludges. */
1192 /* Enable optimizations of output files. */
1193 link_info
.optimize
= strtoul (optarg
, NULL
, 0) != 0;
1196 lang_add_output (optarg
, 0);
1198 case OPTION_OFORMAT
:
1199 lang_add_output_format (optarg
, NULL
, NULL
, 0);
1201 case OPTION_OUT_IMPLIB
:
1202 command_line
.out_implib_filename
= xstrdup (optarg
);
1204 case OPTION_PRINT_SYSROOT
:
1209 case OPTION_PRINT_OUTPUT_FORMAT
:
1210 command_line
.print_output_format
= true;
1212 #if BFD_SUPPORTS_PLUGINS
1214 plugin_opt_plugin (optarg
);
1216 case OPTION_PLUGIN_OPT
:
1217 if (plugin_opt_plugin_arg (optarg
))
1218 einfo (_("%F%P: bad -plugin-opt option\n"));
1220 case OPTION_PLUGIN_SAVE_TEMPS
:
1221 config
.plugin_save_temps
= true;
1223 #endif /* BFD_SUPPORTS_PLUGINS */
1225 link_info
.emitrelocations
= true;
1229 if (optind
== last_optind
)
1230 /* This can happen if the user put "-rpath,a" on the command
1231 line. (Or something similar. The comma is important).
1232 Getopt becomes confused and thinks that this is a -r option
1233 but it cannot parse the text after the -r so it refuses to
1234 increment the optind counter. Detect this case and issue
1235 an error message here. We cannot just make this a warning,
1236 increment optind, and continue because getopt is too confused
1237 and will seg-fault the next time around. */
1238 einfo(_("%F%P: unrecognised option: %s\n"), argv
[optind
]);
1240 if (bfd_link_pic (&link_info
))
1241 einfo (_("%F%P: -r and %s may not be used together\n"),
1242 bfd_link_dll (&link_info
) ? "-shared" : "-pie");
1244 link_info
.type
= type_relocatable
;
1245 config
.build_constructors
= false;
1246 config
.magic_demand_paged
= false;
1247 config
.text_read_only
= false;
1248 input_flags
.dynamic
= false;
1251 /* The GNU linker traditionally uses -R to mean to include
1252 only the symbols from a file. The Solaris linker uses -R
1253 to set the path used by the runtime linker to find
1254 libraries. This is the GNU linker -rpath argument. We
1255 try to support both simultaneously by checking the file
1256 named. If it is a directory, rather than a regular file,
1257 we assume -rpath was meant. */
1261 if (stat (optarg
, &s
) >= 0
1262 && ! S_ISDIR (s
.st_mode
))
1264 lang_add_input_file (optarg
,
1265 lang_input_file_is_symbols_only_enum
,
1272 if (command_line
.rpath
== NULL
)
1273 command_line
.rpath
= xstrdup (optarg
);
1276 size_t rpath_len
= strlen (command_line
.rpath
);
1277 size_t optarg_len
= strlen (optarg
);
1279 char *cp
= command_line
.rpath
;
1281 /* First see whether OPTARG is already in the path. */
1284 if (strncmp (optarg
, cp
, optarg_len
) == 0
1285 && (cp
[optarg_len
] == 0
1286 || cp
[optarg_len
] == config
.rpath_separator
))
1290 /* Not yet found. */
1291 cp
= strchr (cp
, config
.rpath_separator
);
1299 buf
= (char *) xmalloc (rpath_len
+ optarg_len
+ 2);
1300 sprintf (buf
, "%s%c%s", command_line
.rpath
,
1301 config
.rpath_separator
, optarg
);
1302 free (command_line
.rpath
);
1303 command_line
.rpath
= buf
;
1307 case OPTION_RPATH_LINK
:
1308 if (command_line
.rpath_link
== NULL
)
1309 command_line
.rpath_link
= xstrdup (optarg
);
1314 buf
= (char *) xmalloc (strlen (command_line
.rpath_link
)
1317 sprintf (buf
, "%s%c%s", command_line
.rpath_link
,
1318 config
.rpath_separator
, optarg
);
1319 free (command_line
.rpath_link
);
1320 command_line
.rpath_link
= buf
;
1323 case OPTION_NO_RELAX
:
1329 case OPTION_RETAIN_SYMBOLS_FILE
:
1330 add_keepsyms_file (optarg
);
1333 link_info
.strip
= strip_debugger
;
1336 link_info
.strip
= strip_all
;
1338 case OPTION_STRIP_DISCARDED
:
1339 link_info
.strip_discarded
= true;
1341 case OPTION_NO_STRIP_DISCARDED
:
1342 link_info
.strip_discarded
= false;
1344 case OPTION_DISABLE_MULTIPLE_DEFS_ABS
:
1345 link_info
.prohibit_multiple_definition_absolute
= true;
1348 if (config
.has_shared
)
1350 if (bfd_link_relocatable (&link_info
))
1351 einfo (_("%F%P: -r and %s may not be used together\n"),
1354 link_info
.type
= type_dll
;
1355 /* When creating a shared library, the default
1356 behaviour is to ignore any unresolved references. */
1357 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1358 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
1359 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1360 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
1363 einfo (_("%F%P: -shared not supported\n"));
1366 link_info
.type
= type_pde
;
1369 if (config
.has_shared
)
1371 if (bfd_link_relocatable (&link_info
))
1372 einfo (_("%F%P: -r and %s may not be used together\n"), "-pie");
1374 link_info
.type
= type_pie
;
1377 einfo (_("%F%P: -pie not supported\n"));
1379 case 'h': /* Used on Solaris. */
1381 if (optarg
[0] == '\0' && command_line
.soname
1382 && command_line
.soname
[0])
1383 einfo (_("%P: SONAME must not be empty string; keeping previous one\n"));
1385 command_line
.soname
= optarg
;
1387 case OPTION_SORT_COMMON
:
1389 || strcmp (optarg
, N_("descending")) == 0)
1390 config
.sort_common
= sort_descending
;
1391 else if (strcmp (optarg
, N_("ascending")) == 0)
1392 config
.sort_common
= sort_ascending
;
1394 einfo (_("%F%P: invalid common section sorting option: %s\n"),
1397 case OPTION_SORT_SECTION
:
1398 if (strcmp (optarg
, N_("name")) == 0)
1399 sort_section
= by_name
;
1400 else if (strcmp (optarg
, N_("alignment")) == 0)
1401 sort_section
= by_alignment
;
1403 einfo (_("%F%P: invalid section sorting option: %s\n"),
1406 case OPTION_SECTION_ORDERING_FILE
:
1407 if (command_line
.section_ordering_file
!= NULL
1408 && strcmp (optarg
, command_line
.section_ordering_file
) != 0)
1409 einfo (_("%P: warning: section ordering file changed. Ignoring earlier definition\n"));
1410 command_line
.section_ordering_file
= optarg
;
1413 config
.stats
= true;
1415 case OPTION_NO_SYMBOLIC
:
1416 opt_symbolic
= symbolic_unset
;
1418 case OPTION_SYMBOLIC
:
1419 opt_symbolic
= symbolic
;
1421 case OPTION_SYMBOLIC_FUNCTIONS
:
1422 opt_symbolic
= symbolic_functions
;
1428 previous_script_handle
= saved_script_handle
;
1429 ldfile_open_script_file (optarg
);
1430 parser_input
= input_script
;
1432 previous_script_handle
= NULL
;
1434 case OPTION_DEFAULT_SCRIPT
:
1435 command_line
.default_script
= optarg
;
1437 case OPTION_SECTION_START
:
1443 /* Check for <something>=<somthing>... */
1444 optarg2
= strchr (optarg
, '=');
1445 if (optarg2
== NULL
)
1446 einfo (_("%F%P: invalid argument to option"
1447 " \"--section-start\"\n"));
1451 /* So far so good. Are all the args present? */
1452 if ((*optarg
== '\0') || (*optarg2
== '\0'))
1453 einfo (_("%F%P: missing argument(s) to option"
1454 " \"--section-start\"\n"));
1456 /* We must copy the section name as set_section_start
1457 doesn't do it for us. */
1458 len
= optarg2
- optarg
;
1459 sec_name
= (char *) xmalloc (len
);
1460 memcpy (sec_name
, optarg
, len
- 1);
1461 sec_name
[len
- 1] = 0;
1463 /* Then set it... */
1464 set_section_start (sec_name
, optarg2
);
1467 case OPTION_TARGET_HELP
:
1468 /* Mention any target specific options. */
1469 ldemul_list_emulation_options (stdout
);
1472 set_segment_start (".bss", optarg
);
1475 set_segment_start (".data", optarg
);
1478 set_segment_start (".text", optarg
);
1480 case OPTION_TTEXT_SEGMENT
:
1481 set_segment_start (".text-segment", optarg
);
1483 case OPTION_TRODATA_SEGMENT
:
1484 set_segment_start (".rodata-segment", optarg
);
1486 case OPTION_TLDATA_SEGMENT
:
1487 set_segment_start (".ldata-segment", optarg
);
1489 case OPTION_TRADITIONAL_FORMAT
:
1490 link_info
.traditional_format
= true;
1492 case OPTION_TASK_LINK
:
1493 link_info
.task_link
= true;
1496 if (bfd_link_pic (&link_info
))
1497 einfo (_("%F%P: -r and %s may not be used together\n"),
1498 bfd_link_dll (&link_info
) ? "-shared" : "-pie");
1500 link_info
.type
= type_relocatable
;
1501 config
.build_constructors
= true;
1502 config
.magic_demand_paged
= false;
1503 config
.text_read_only
= false;
1504 input_flags
.dynamic
= false;
1507 ldlang_add_undef (optarg
, true);
1509 case OPTION_REQUIRE_DEFINED_SYMBOL
:
1510 ldlang_add_require_defined (optarg
);
1514 lang_add_unique (optarg
);
1516 config
.unique_orphan_sections
= true;
1518 case OPTION_VERBOSE
:
1520 version_printed
= true;
1522 overflow_cutoff_limit
= -2;
1526 int level ATTRIBUTE_UNUSED
= strtoul (optarg
, &end
, 0);
1528 einfo (_("%F%P: invalid number `%s'\n"), optarg
);
1529 #if BFD_SUPPORTS_PLUGINS
1530 report_plugin_symbols
= level
> 1;
1531 #endif /* BFD_SUPPORTS_PLUGINS */
1536 version_printed
= true;
1540 version_printed
= true;
1542 case OPTION_VERSION
:
1546 case OPTION_VERSION_SCRIPT
:
1547 /* This option indicates a small script that only specifies
1548 version information. Read it, but don't assume that
1549 we've seen a linker script. */
1551 FILE *hold_script_handle
;
1553 hold_script_handle
= saved_script_handle
;
1554 ldfile_open_command_file (optarg
);
1555 saved_script_handle
= hold_script_handle
;
1556 parser_input
= input_version_script
;
1560 case OPTION_VERSION_EXPORTS_SECTION
:
1561 /* This option records a version symbol to be applied to the
1562 symbols listed for export to be found in the object files
1563 .exports sections. */
1564 command_line
.version_exports_section
= optarg
;
1566 case OPTION_DYNAMIC_LIST_DATA
:
1567 opt_dynamic_list
= dynamic_list_data
;
1569 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO
:
1570 lang_append_dynamic_list_cpp_typeinfo ();
1571 if (opt_dynamic_list
!= dynamic_list_data
)
1572 opt_dynamic_list
= dynamic_list
;
1574 case OPTION_DYNAMIC_LIST_CPP_NEW
:
1575 lang_append_dynamic_list_cpp_new ();
1576 if (opt_dynamic_list
!= dynamic_list_data
)
1577 opt_dynamic_list
= dynamic_list
;
1579 case OPTION_DYNAMIC_LIST
:
1580 /* This option indicates a small script that only specifies
1581 a dynamic list. Read it, but don't assume that we've
1582 seen a linker script. */
1584 FILE *hold_script_handle
;
1586 hold_script_handle
= saved_script_handle
;
1587 ldfile_open_command_file (optarg
);
1588 saved_script_handle
= hold_script_handle
;
1589 parser_input
= input_dynamic_list
;
1590 current_dynamic_list_p
= &link_info
.dynamic_list
;
1593 if (opt_dynamic_list
!= dynamic_list_data
)
1594 opt_dynamic_list
= dynamic_list
;
1596 case OPTION_EXPORT_DYNAMIC_SYMBOL
:
1598 struct bfd_elf_version_expr
*expr
1599 = lang_new_vers_pattern (NULL
, xstrdup (optarg
), NULL
,
1601 lang_append_dynamic_list (&export_list
, expr
);
1604 case OPTION_EXPORT_DYNAMIC_SYMBOL_LIST
:
1605 /* This option indicates a small script that only specifies
1606 an export list. Read it, but don't assume that we've
1607 seen a linker script. */
1609 FILE *hold_script_handle
;
1611 hold_script_handle
= saved_script_handle
;
1612 ldfile_open_command_file (optarg
);
1613 saved_script_handle
= hold_script_handle
;
1614 parser_input
= input_dynamic_list
;
1615 current_dynamic_list_p
= &export_list
;
1619 case OPTION_WARN_COMMON
:
1620 config
.warn_common
= true;
1622 case OPTION_WARN_CONSTRUCTORS
:
1623 config
.warn_constructors
= true;
1625 case OPTION_WARN_FATAL
:
1626 config
.fatal_warnings
= true;
1628 case OPTION_NO_WARN_FATAL
:
1629 config
.fatal_warnings
= false;
1631 case OPTION_NO_WARNINGS
:
1633 config
.no_warnings
= true;
1634 config
.fatal_warnings
= false;
1636 case OPTION_WARN_MULTIPLE_GP
:
1637 config
.warn_multiple_gp
= true;
1639 case OPTION_WARN_ONCE
:
1640 config
.warn_once
= true;
1642 case OPTION_WARN_SECTION_ALIGN
:
1643 config
.warn_section_align
= true;
1645 case OPTION_WARN_TEXTREL
:
1646 link_info
.textrel_check
= textrel_check_warning
;
1648 case OPTION_WARN_ALTERNATE_EM
:
1649 link_info
.warn_alternate_em
= true;
1651 case OPTION_WHOLE_ARCHIVE
:
1652 input_flags
.whole_archive
= true;
1654 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
:
1655 input_flags
.add_DT_NEEDED_for_dynamic
= true;
1657 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
:
1658 input_flags
.add_DT_NEEDED_for_dynamic
= false;
1660 case OPTION_ADD_DT_NEEDED_FOR_REGULAR
:
1661 input_flags
.add_DT_NEEDED_for_regular
= true;
1663 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
:
1664 input_flags
.add_DT_NEEDED_for_regular
= false;
1669 case OPTION_IGNORE_UNRESOLVED_SYMBOL
:
1670 add_ignoresym (&link_info
, optarg
);
1672 case OPTION_DISCARD_NONE
:
1673 link_info
.discard
= discard_none
;
1676 link_info
.discard
= discard_l
;
1679 link_info
.discard
= discard_all
;
1682 if (startswith (optarg
, "P,"))
1684 free (default_dirlist
);
1685 default_dirlist
= xstrdup (optarg
);
1690 case OPTION_SPARE_DYNAMIC_TAGS
:
1691 link_info
.spare_dynamic_tags
= strtoul (optarg
, NULL
, 0);
1693 case OPTION_SPLIT_BY_RELOC
:
1695 config
.split_by_reloc
= strtoul (optarg
, NULL
, 0);
1697 config
.split_by_reloc
= 32768;
1699 case OPTION_SPLIT_BY_FILE
:
1701 config
.split_by_file
= bfd_scan_vma (optarg
, NULL
, 0);
1703 config
.split_by_file
= 1;
1705 case OPTION_CHECK_SECTIONS
:
1706 command_line
.check_section_addresses
= 1;
1708 case OPTION_NO_CHECK_SECTIONS
:
1709 command_line
.check_section_addresses
= 0;
1711 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
:
1712 command_line
.accept_unknown_input_arch
= true;
1714 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
:
1715 command_line
.accept_unknown_input_arch
= false;
1718 lang_enter_group ();
1723 einfo (_("%F%P: group ended before it began (--help for usage)\n"));
1725 lang_leave_group ();
1730 link_info
.init_function
= optarg
;
1734 link_info
.fini_function
= optarg
;
1737 case OPTION_REMAP_INPUTS_FILE
:
1738 if (! ldfile_add_remap_file (optarg
))
1739 einfo (_("%F%P: failed to add remap file %s\n"), optarg
);
1742 case OPTION_REMAP_INPUTS
:
1744 char *optarg2
= strchr (optarg
, '=');
1745 if (optarg2
== NULL
)
1746 /* FIXME: Should we allow --remap-inputs=@myfile as a synonym
1747 for --remap-inputs-file=myfile ? */
1748 einfo (_("%F%P: invalid argument to option --remap-inputs\n"));
1749 size_t len
= optarg2
- optarg
;
1750 char * pattern
= xmalloc (len
+ 1);
1751 memcpy (pattern
, optarg
, len
);
1753 ldfile_add_remap (pattern
, optarg2
+ 1);
1758 case OPTION_REDUCE_MEMORY_OVERHEADS
:
1759 link_info
.reduce_memory_overheads
= true;
1760 if (config
.hash_table_size
== 0)
1761 config
.hash_table_size
= 1021;
1764 case OPTION_MAX_CACHE_SIZE
:
1767 bfd_size_type cache_size
= strtoul (optarg
, &end
, 0);
1769 einfo (_("%F%P: invalid cache memory size: %s\n"),
1771 link_info
.max_cache_size
= cache_size
;
1775 case OPTION_HASH_SIZE
:
1777 bfd_size_type new_size
;
1779 new_size
= strtoul (optarg
, NULL
, 0);
1781 config
.hash_table_size
= new_size
;
1783 einfo (_("%X%P: --hash-size needs a numeric argument\n"));
1787 case OPTION_PUSH_STATE
:
1788 input_flags
.pushed
= xmemdup (&input_flags
,
1789 sizeof (input_flags
),
1790 sizeof (input_flags
));
1793 case OPTION_POP_STATE
:
1794 if (input_flags
.pushed
== NULL
)
1795 einfo (_("%F%P: no state pushed before popping\n"));
1798 struct lang_input_statement_flags
*oldp
= input_flags
.pushed
;
1799 memcpy (&input_flags
, oldp
, sizeof (input_flags
));
1804 case OPTION_PRINT_MEMORY_USAGE
:
1805 command_line
.print_memory_usage
= true;
1808 case OPTION_ORPHAN_HANDLING
:
1809 if (strcasecmp (optarg
, "place") == 0)
1810 config
.orphan_handling
= orphan_handling_place
;
1811 else if (strcasecmp (optarg
, "warn") == 0)
1812 config
.orphan_handling
= orphan_handling_warn
;
1813 else if (strcasecmp (optarg
, "error") == 0)
1814 config
.orphan_handling
= orphan_handling_error
;
1815 else if (strcasecmp (optarg
, "discard") == 0)
1816 config
.orphan_handling
= orphan_handling_discard
;
1818 einfo (_("%F%P: invalid argument to option"
1819 " \"--orphan-handling\"\n"));
1822 case OPTION_NO_PRINT_MAP_DISCARDED
:
1823 config
.print_map_discarded
= false;
1826 case OPTION_PRINT_MAP_DISCARDED
:
1827 config
.print_map_discarded
= true;
1830 case OPTION_NO_PRINT_MAP_LOCALS
:
1831 config
.print_map_locals
= false;
1834 case OPTION_PRINT_MAP_LOCALS
:
1835 config
.print_map_locals
= true;
1838 case OPTION_DEPENDENCY_FILE
:
1839 config
.dependency_file
= optarg
;
1842 case OPTION_CTF_VARIABLES
:
1843 config
.ctf_variables
= true;
1846 case OPTION_NO_CTF_VARIABLES
:
1847 config
.ctf_variables
= false;
1850 case OPTION_CTF_SHARE_TYPES
:
1851 if (strcmp (optarg
, "share-unconflicted") == 0)
1852 config
.ctf_share_duplicated
= false;
1853 else if (strcmp (optarg
, "share-duplicated") == 0)
1854 config
.ctf_share_duplicated
= true;
1856 einfo (_("%F%P: bad --ctf-share-types option: %s\n"), optarg
);
1861 free (really_longopts
);
1865 /* Run a couple of checks on the map filename. */
1866 if (config
.map_filename
)
1868 char * new_name
= NULL
;
1872 if (config
.map_filename
[0] == 0)
1874 einfo (_("%P: no file/directory name provided for map output; ignored\n"));
1875 config
.map_filename
= NULL
;
1877 else if (strcmp (config
.map_filename
, "-") == 0)
1878 ; /* Write to stdout. Handled in main(). */
1879 else if ((percent
= strchr (config
.map_filename
, '%')) != NULL
)
1881 /* FIXME: Check for a second % character and issue an error ? */
1883 /* Construct a map file by replacing the % character with the (full)
1884 output filename. If the % character was the last character in
1885 the original map filename then add a .map extension. */
1887 res
= asprintf (&new_name
, "%s%s%s", config
.map_filename
,
1889 percent
[1] ? percent
+ 1 : ".map");
1891 /* FIXME: Should we ensure that any directory components in new_name exist ? */
1897 /* If the map filename is actually a directory then create
1898 a file inside it, based upon the output filename. */
1899 if (stat (config
.map_filename
, &s
) < 0)
1901 if (errno
!= ENOENT
)
1902 einfo (_("%P: cannot stat linker map file: %E\n"));
1904 else if (S_ISDIR (s
.st_mode
))
1906 char lastc
= config
.map_filename
[strlen (config
.map_filename
) - 1];
1907 res
= asprintf (&new_name
, "%s%s%s.map",
1908 config
.map_filename
,
1909 IS_DIR_SEPARATOR (lastc
) ? "" : "/",
1910 lbasename (output_filename
));
1912 else if (! S_ISREG (s
.st_mode
))
1914 einfo (_("%P: linker map file is not a regular file\n"));
1915 config
.map_filename
= NULL
;
1917 /* else FIXME: Check write permission ? */
1922 /* If the asprintf failed then something is probably very
1923 wrong. Better to halt now rather than continue on
1924 into more problems. */
1925 einfo (_("%P%F: cannot create name for linker map file: %E\n"));
1927 else if (new_name
!= NULL
)
1929 /* This is a trivial memory leak. */
1930 config
.map_filename
= new_name
;
1934 if (command_line
.soname
&& command_line
.soname
[0] == '\0')
1936 einfo (_("%P: SONAME must not be empty string; ignored\n"));
1937 command_line
.soname
= NULL
;
1942 einfo (_("%P: missing --end-group; added as last command line option\n"));
1943 lang_leave_group ();
1947 if (default_dirlist
!= NULL
)
1949 set_default_dirlist (default_dirlist
);
1950 free (default_dirlist
);
1953 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1954 /* FIXME: Should we allow emulations a chance to set this ? */
1955 link_info
.unresolved_syms_in_objects
= RM_DIAGNOSE
;
1957 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1958 /* FIXME: Should we allow emulations a chance to set this ? */
1959 link_info
.unresolved_syms_in_shared_libs
= RM_DIAGNOSE
;
1961 if (bfd_link_relocatable (&link_info
)
1962 && command_line
.check_section_addresses
< 0)
1963 command_line
.check_section_addresses
= 0;
1967 struct bfd_elf_version_expr
*head
= export_list
->head
.list
;
1968 struct bfd_elf_version_expr
*next
;
1970 /* For --export-dynamic-symbol[-list]:
1971 1. When building executable, treat like --dynamic-list.
1972 2. When building shared object:
1973 a. If -Bsymbolic or --dynamic-list are used, treat like
1975 b. Otherwise, ignored.
1977 if (!bfd_link_relocatable (&link_info
)
1978 && (bfd_link_executable (&link_info
)
1979 || opt_symbolic
!= symbolic_unset
1980 || opt_dynamic_list
!= dynamic_list_unset
))
1982 /* Append the export list to link_info.dynamic_list. */
1983 if (link_info
.dynamic_list
)
1985 for (next
= head
; next
->next
!= NULL
; next
= next
->next
)
1987 next
->next
= link_info
.dynamic_list
->head
.list
;
1988 link_info
.dynamic_list
->head
.list
= head
;
1991 link_info
.dynamic_list
= export_list
;
1993 if (opt_dynamic_list
!= dynamic_list_data
)
1994 opt_dynamic_list
= dynamic_list
;
1998 /* Free the export list. */
1999 for (; head
->next
!= NULL
; head
= next
)
2008 switch (opt_dynamic_list
)
2010 case dynamic_list_unset
:
2012 case dynamic_list_data
:
2013 link_info
.dynamic_data
= true;
2016 link_info
.dynamic
= true;
2017 opt_symbolic
= symbolic_unset
;
2021 /* -Bsymbolic and -Bsymbols-functions are for shared library output. */
2022 if (bfd_link_dll (&link_info
))
2023 switch (opt_symbolic
)
2025 case symbolic_unset
:
2028 link_info
.symbolic
= true;
2029 if (link_info
.dynamic_list
)
2031 struct bfd_elf_version_expr
*ent
, *next
;
2032 for (ent
= link_info
.dynamic_list
->head
.list
; ent
; ent
= next
)
2037 free (link_info
.dynamic_list
);
2038 link_info
.dynamic_list
= NULL
;
2041 case symbolic_functions
:
2042 link_info
.dynamic
= true;
2043 link_info
.dynamic_data
= true;
2047 /* -z nosectionheader implies --strip-all. */
2048 if (config
.no_section_header
)
2050 if (bfd_link_relocatable (&link_info
))
2051 einfo (_("%F%P: -r and -z nosectionheader may not be used together\n"));
2053 link_info
.strip
= strip_all
;
2056 if (!bfd_link_dll (&link_info
))
2058 if (command_line
.filter_shlib
)
2059 einfo (_("%F%P: -F may not be used without -shared\n"));
2060 if (command_line
.auxiliary_filters
)
2061 einfo (_("%F%P: -f may not be used without -shared\n"));
2064 /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
2065 don't see how else this can be handled, since in this case we
2066 must preserve all externally visible symbols. */
2067 if (bfd_link_relocatable (&link_info
) && link_info
.strip
== strip_all
)
2069 link_info
.strip
= strip_debugger
;
2070 if (link_info
.discard
== discard_sec_merge
)
2071 link_info
.discard
= discard_all
;
2075 /* Add the (colon-separated) elements of DIRLIST_PTR to the
2076 library search path. */
2079 set_default_dirlist (char *dirlist_ptr
)
2085 p
= strchr (dirlist_ptr
, PATH_SEPARATOR
);
2088 if (*dirlist_ptr
!= '\0')
2089 ldfile_add_library_path (dirlist_ptr
, true);
2092 dirlist_ptr
= p
+ 1;
2097 set_section_start (char *sect
, char *valstr
)
2100 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
2102 einfo (_("%F%P: invalid hex number `%s'\n"), valstr
);
2103 lang_section_start (sect
, exp_intop (val
), NULL
);
2107 set_segment_start (const char *section
, char *valstr
)
2113 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
2115 einfo (_("%F%P: invalid hex number `%s'\n"), valstr
);
2116 /* If we already have an entry for this segment, update the existing
2119 for (seg
= segments
; seg
; seg
= seg
->next
)
2120 if (strcmp (seg
->name
, name
) == 0)
2123 lang_section_start (section
, exp_intop (val
), seg
);
2126 /* There was no existing value so we must create a new segment
2128 seg
= stat_alloc (sizeof (*seg
));
2132 /* Add it to the linked list of segments. */
2133 seg
->next
= segments
;
2135 /* Historically, -Ttext and friends set the base address of a
2136 particular section. For backwards compatibility, we still do
2137 that. If a SEGMENT_START directive is seen, the section address
2138 assignment will be disabled. */
2139 lang_section_start (section
, exp_intop (val
), seg
);
2143 elf_shlib_list_options (FILE *file
)
2146 --audit=AUDITLIB Specify a library to use for auditing\n"));
2148 -Bgroup Selects group name lookup rules for DSO\n"));
2150 --disable-new-dtags Disable new dynamic tags\n"));
2152 --enable-new-dtags Enable new dynamic tags\n"));
2154 --eh-frame-hdr Create .eh_frame_hdr section\n"));
2156 --no-eh-frame-hdr Do not create .eh_frame_hdr section\n"));
2158 --exclude-libs=LIBS Make all symbols in LIBS hidden\n"));
2160 --hash-style=STYLE Set hash style to sysv/gnu/both. Default: "));
2161 if (DEFAULT_EMIT_SYSV_HASH
)
2163 /* Note - these strings are not translated as
2164 they are keywords not descriptive text. */
2165 if (DEFAULT_EMIT_GNU_HASH
)
2166 fprintf (file
, "both\n");
2168 fprintf (file
, "sysv\n");
2172 if (DEFAULT_EMIT_GNU_HASH
)
2173 fprintf (file
, "gnu\n");
2175 /* FIXME: Can this happen ? */
2176 fprintf (file
, "none\n");
2179 -P AUDITLIB, --depaudit=AUDITLIB\n" "\
2180 Specify a library to use for auditing dependencies\n"));
2182 -z combreloc Merge dynamic relocs into one section and sort\n"));
2184 -z nocombreloc Don't merge dynamic relocs into one section\n"));
2186 -z global Make symbols in DSO available for subsequently\n\
2187 loaded objects\n"));
2189 -z initfirst Mark DSO to be initialized first at runtime\n"));
2191 -z interpose Mark object to interpose all DSOs but executable\n"));
2193 -z unique Mark DSO to be loaded at most once by default, and only in the main namespace\n"));
2195 -z nounique Don't mark DSO as a loadable at most once\n"));
2197 -z lazy Mark object lazy runtime binding (default)\n"));
2199 -z loadfltr Mark object requiring immediate process\n"));
2201 -z nocopyreloc Don't create copy relocs\n"));
2203 -z nodefaultlib Mark object not to use default search paths\n"));
2205 -z nodelete Mark DSO non-deletable at runtime\n"));
2207 -z nodlopen Mark DSO not available to dlopen\n"));
2209 -z nodump Mark DSO not available to dldump\n"));
2211 -z now Mark object non-lazy runtime binding\n"));
2213 -z origin Mark object requiring immediate $ORIGIN\n\
2214 processing at runtime\n"));
2215 #if DEFAULT_LD_Z_RELRO
2217 -z relro Create RELRO program header (default)\n"));
2219 -z norelro Don't create RELRO program header\n"));
2222 -z relro Create RELRO program header\n"));
2224 -z norelro Don't create RELRO program header (default)\n"));
2226 #if DEFAULT_LD_Z_SEPARATE_CODE
2228 -z separate-code Create separate code program header (default)\n"));
2230 -z noseparate-code Don't create separate code program header\n"));
2233 -z separate-code Create separate code program header\n"));
2235 -z noseparate-code Don't create separate code program header (default)\n"));
2238 -z common Generate common symbols with STT_COMMON type\n"));
2240 -z nocommon Generate common symbols with STT_OBJECT type\n"));
2241 if (link_info
.textrel_check
== textrel_check_error
)
2243 -z text Treat DT_TEXTREL in output as error (default)\n"));
2246 -z text Treat DT_TEXTREL in output as error\n"));
2247 if (link_info
.textrel_check
== textrel_check_none
)
2250 -z notext Don't treat DT_TEXTREL in output as error (default)\n"));
2252 -z textoff Don't treat DT_TEXTREL in output as error (default)\n"));
2257 -z notext Don't treat DT_TEXTREL in output as error\n"));
2259 -z textoff Don't treat DT_TEXTREL in output as error\n"));
2264 elf_static_list_options (FILE *file
)
2267 --build-id[=STYLE] Generate build ID note\n"));
2269 --package-metadata[=JSON] Generate package metadata note\n"));
2271 --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi|zstd]\n\
2272 Compress DWARF debug sections\n"));
2275 bfd_get_compression_algorithm_name (config
.compress_debug
));
2277 -z common-page-size=SIZE Set common page size to SIZE\n"));
2279 -z max-page-size=SIZE Set maximum page size to SIZE\n"));
2281 -z defs Report unresolved symbols in object files\n"));
2283 -z undefs Ignore unresolved symbols in object files\n"));
2285 -z muldefs Allow multiple definitions\n"));
2287 -z stack-size=SIZE Set size of stack segment\n"));
2290 -z execstack Mark executable as requiring executable stack\n"));
2292 -z noexecstack Mark executable as not requiring executable stack\n"));
2294 --warn-execstack-objects Generate a warning if an object file requests an executable stack\n"));
2295 #if DEFAULT_LD_WARN_EXECSTACK == 0
2297 --warn-execstack Generate a warning if creating an executable stack\n"));
2300 --warn-execstack Generate a warning if creating an executable stack (default)\n"));
2302 #if DEFAULT_LD_WARN_EXECSTACK == 0
2304 --no-warn-execstack Do not generate a warning if creating an executable stack (default)\n"));
2307 --no-warn-execstack Do not generate a warning if creating an executable stack\n"));
2310 --error-execstack Turn warnings about executable stacks into errors\n"));
2312 --no-error-execstack Do not turn warnings about executable stacks into errors\n"));
2314 #if DEFAULT_LD_WARN_RWX_SEGMENTS
2316 --warn-rwx-segments Generate a warning if a LOAD segment has RWX permissions (default)\n"));
2318 --no-warn-rwx-segments Do not generate a warning if a LOAD segments has RWX permissions\n"));
2321 --warn-rwx-segments Generate a warning if a LOAD segment has RWX permissions\n"));
2323 --no-warn-rwx-segments Do not generate a warning if a LOAD segments has RWX permissions (default)\n"));
2326 --error-rwx-segments Turn warnings about loadable RWX segments into errors\n"));
2328 --no-error-rwx-segments Do not turn warnings about loadable RWX segments into errors\n"));
2331 -z unique-symbol Avoid duplicated local symbol names\n"));
2333 -z nounique-symbol Keep duplicated local symbol names (default)\n"));
2335 -z globalaudit Mark executable requiring global auditing\n"));
2337 -z start-stop-gc Enable garbage collection on __start/__stop\n"));
2339 -z nostart-stop-gc Don't garbage collect __start/__stop (default)\n"));
2341 -z start-stop-visibility=V Set visibility of built-in __start/__stop symbols\n\
2342 to DEFAULT, PROTECTED, HIDDEN or INTERNAL\n"));
2344 -z sectionheader Generate section header (default)\n"));
2346 -z nosectionheader Do not generate section header\n"));
2350 elf_plt_unwind_list_options (FILE *file
)
2353 --ld-generated-unwind-info Generate exception handling info for PLT\n"));
2355 --no-ld-generated-unwind-info\n\
2356 Don't generate exception handling info for PLT\n"));
2360 ld_list_options (FILE *file
, bool elf
, bool shlib
, bool plt_unwind
)
2364 printf (_("ELF emulations:\n"));
2366 elf_plt_unwind_list_options (file
);
2367 elf_static_list_options (file
);
2369 elf_shlib_list_options (file
);
2373 /* Print help messages for the options. */
2379 const char **targets
, **pp
;
2382 printf (_("Usage: %s [options] file...\n"), program_name
);
2384 printf (_("Options:\n"));
2385 for (i
= 0; i
< OPTION_COUNT
; i
++)
2387 if (ld_options
[i
].doc
!= NULL
)
2400 if (ld_options
[j
].shortopt
!= '\0'
2401 && ld_options
[j
].control
!= NO_HELP
)
2403 printf ("%s-%c", comma
? ", " : "", ld_options
[j
].shortopt
);
2404 len
+= (comma
? 2 : 0) + 2;
2405 if (ld_options
[j
].arg
!= NULL
)
2407 if (ld_options
[j
].opt
.has_arg
!= optional_argument
)
2412 printf ("%s", _(ld_options
[j
].arg
));
2413 len
+= strlen (_(ld_options
[j
].arg
));
2419 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
2424 if (ld_options
[j
].opt
.name
!= NULL
2425 && ld_options
[j
].control
!= NO_HELP
)
2428 (ld_options
[j
].control
== TWO_DASHES
2429 || ld_options
[j
].control
== EXACTLY_TWO_DASHES
);
2433 two_dashes
? "-" : "",
2434 ld_options
[j
].opt
.name
);
2435 len
+= ((comma
? 2 : 0)
2437 + (two_dashes
? 1 : 0)
2438 + strlen (ld_options
[j
].opt
.name
));
2439 if (ld_options
[j
].arg
!= NULL
)
2441 printf (" %s", _(ld_options
[j
].arg
));
2442 len
+= 1 + strlen (_(ld_options
[j
].arg
));
2448 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
2456 for (; len
< 30; len
++)
2459 printf ("%s\n", _(ld_options
[i
].doc
));
2462 printf (_(" @FILE"));
2463 for (len
= strlen (" @FILE"); len
< 30; len
++)
2465 printf (_("Read options from FILE\n"));
2467 /* Note: Various tools (such as libtool) depend upon the
2468 format of the listings below - do not change them. */
2469 /* xgettext:c-format */
2470 printf (_("%s: supported targets:"), program_name
);
2471 targets
= bfd_target_list ();
2472 for (pp
= targets
; *pp
!= NULL
; pp
++)
2473 printf (" %s", *pp
);
2477 /* xgettext:c-format */
2478 printf (_("%s: supported emulations: "), program_name
);
2479 ldemul_list_emulations (stdout
);
2482 /* xgettext:c-format */
2483 printf (_("%s: emulation specific options:\n"), program_name
);
2484 ld_list_options (stdout
, ELF_LIST_OPTIONS
, ELF_SHLIB_LIST_OPTIONS
,
2485 ELF_PLT_UNWIND_LIST_OPTIONS
);
2486 ldemul_list_emulation_options (stdout
);
2489 if (REPORT_BUGS_TO
[0])
2490 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO
);