1 /* Parse options for the GNU linker.
2 Copyright (C) 1991-2015 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 { {"entry", required_argument
, NULL
, 'e'},
116 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES
},
117 { {"export-dynamic", no_argument
, NULL
, OPTION_EXPORT_DYNAMIC
},
118 'E', NULL
, N_("Export all dynamic symbols"), TWO_DASHES
},
119 { {"no-export-dynamic", no_argument
, NULL
, OPTION_NO_EXPORT_DYNAMIC
},
120 '\0', NULL
, N_("Undo the effect of --export-dynamic"), TWO_DASHES
},
121 { {"EB", no_argument
, NULL
, OPTION_EB
},
122 '\0', NULL
, N_("Link big-endian objects"), ONE_DASH
},
123 { {"EL", no_argument
, NULL
, OPTION_EL
},
124 '\0', NULL
, N_("Link little-endian objects"), ONE_DASH
},
125 { {"auxiliary", required_argument
, NULL
, 'f'},
126 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
128 { {"filter", required_argument
, NULL
, 'F'},
129 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
131 { {NULL
, no_argument
, NULL
, '\0'},
132 'g', NULL
, N_("Ignored"), ONE_DASH
},
133 { {"gpsize", required_argument
, NULL
, 'G'},
134 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
136 { {"soname", required_argument
, NULL
, OPTION_SONAME
},
137 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH
},
138 { {"dynamic-linker", required_argument
, NULL
, OPTION_DYNAMIC_LINKER
},
139 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
141 { {"library", required_argument
, NULL
, 'l'},
142 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES
},
143 { {"library-path", required_argument
, NULL
, 'L'},
144 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
146 { {"sysroot=<DIRECTORY>", required_argument
, NULL
, OPTION_SYSROOT
},
147 '\0', NULL
, N_("Override the default sysroot location"), TWO_DASHES
},
148 { {NULL
, required_argument
, NULL
, '\0'},
149 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH
},
150 { {"print-map", no_argument
, NULL
, 'M'},
151 'M', NULL
, N_("Print map file on standard output"), TWO_DASHES
},
152 { {"nmagic", no_argument
, NULL
, 'n'},
153 'n', NULL
, N_("Do not page align data"), TWO_DASHES
},
154 { {"omagic", no_argument
, NULL
, 'N'},
155 'N', NULL
, N_("Do not page align data, do not make text readonly"),
156 EXACTLY_TWO_DASHES
},
157 { {"no-omagic", no_argument
, NULL
, OPTION_NO_OMAGIC
},
158 '\0', NULL
, N_("Page align data, make text readonly"),
159 EXACTLY_TWO_DASHES
},
160 { {"output", required_argument
, NULL
, 'o'},
161 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES
},
162 { {NULL
, required_argument
, NULL
, '\0'},
163 'O', NULL
, N_("Optimize output file"), ONE_DASH
},
164 #ifdef ENABLE_PLUGINS
165 { {"plugin", required_argument
, NULL
, OPTION_PLUGIN
},
166 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH
},
167 { {"plugin-opt", required_argument
, NULL
, OPTION_PLUGIN_OPT
},
168 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH
},
169 { {"flto", optional_argument
, NULL
, OPTION_IGNORE
},
170 '\0', NULL
, N_("Ignored for GCC LTO option compatibility"),
172 { {"flto-partition=", required_argument
, NULL
, OPTION_IGNORE
},
173 '\0', NULL
, N_("Ignored for GCC LTO option compatibility"),
175 #endif /* ENABLE_PLUGINS */
176 { {"fuse-ld=", required_argument
, NULL
, OPTION_IGNORE
},
177 '\0', NULL
, N_("Ignored for GCC linker option compatibility"),
179 { {"map-whole-files", optional_argument
, NULL
, OPTION_IGNORE
},
180 '\0', NULL
, N_("Ignored for gold option compatibility"),
182 { {"no-map-whole-files", optional_argument
, NULL
, OPTION_IGNORE
},
183 '\0', NULL
, N_("Ignored for gold option compatibility"),
185 { {"Qy", no_argument
, NULL
, OPTION_IGNORE
},
186 '\0', NULL
, N_("Ignored for SVR4 compatibility"), ONE_DASH
},
187 { {"emit-relocs", no_argument
, NULL
, 'q'},
188 'q', NULL
, "Generate relocations in final output", TWO_DASHES
},
189 { {"relocatable", no_argument
, NULL
, 'r'},
190 'r', NULL
, N_("Generate relocatable output"), TWO_DASHES
},
191 { {NULL
, no_argument
, NULL
, '\0'},
192 'i', NULL
, NULL
, ONE_DASH
},
193 { {"just-symbols", required_argument
, NULL
, 'R'},
194 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
196 { {"strip-all", no_argument
, NULL
, 's'},
197 's', NULL
, N_("Strip all symbols"), TWO_DASHES
},
198 { {"strip-debug", no_argument
, NULL
, 'S'},
199 'S', NULL
, N_("Strip debugging symbols"), TWO_DASHES
},
200 { {"strip-discarded", no_argument
, NULL
, OPTION_STRIP_DISCARDED
},
201 '\0', NULL
, N_("Strip symbols in discarded sections"), TWO_DASHES
},
202 { {"no-strip-discarded", no_argument
, NULL
, OPTION_NO_STRIP_DISCARDED
},
203 '\0', NULL
, N_("Do not strip symbols in discarded sections"), TWO_DASHES
},
204 { {"trace", no_argument
, NULL
, 't'},
205 't', NULL
, N_("Trace file opens"), TWO_DASHES
},
206 { {"script", required_argument
, NULL
, 'T'},
207 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES
},
208 { {"default-script", required_argument
, NULL
, OPTION_DEFAULT_SCRIPT
},
209 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES
},
210 { {"dT", required_argument
, NULL
, OPTION_DEFAULT_SCRIPT
},
211 '\0', NULL
, NULL
, ONE_DASH
},
212 { {"undefined", required_argument
, NULL
, 'u'},
213 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
215 { {"unique", optional_argument
, NULL
, OPTION_UNIQUE
},
216 '\0', N_("[=SECTION]"),
217 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES
},
218 { {"Ur", no_argument
, NULL
, OPTION_UR
},
219 '\0', NULL
, N_("Build global constructor/destructor tables"), ONE_DASH
},
220 { {"version", no_argument
, NULL
, OPTION_VERSION
},
221 'v', NULL
, N_("Print version information"), TWO_DASHES
},
222 { {NULL
, no_argument
, NULL
, '\0'},
223 'V', NULL
, N_("Print version and emulation information"), ONE_DASH
},
224 { {"discard-all", no_argument
, NULL
, 'x'},
225 'x', NULL
, N_("Discard all local symbols"), TWO_DASHES
},
226 { {"discard-locals", no_argument
, NULL
, 'X'},
227 'X', NULL
, N_("Discard temporary local symbols (default)"), TWO_DASHES
},
228 { {"discard-none", no_argument
, NULL
, OPTION_DISCARD_NONE
},
229 '\0', NULL
, N_("Don't discard any local symbols"), TWO_DASHES
},
230 { {"trace-symbol", required_argument
, NULL
, 'y'},
231 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES
},
232 { {NULL
, required_argument
, NULL
, '\0'},
233 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
235 { {"start-group", no_argument
, NULL
, '('},
236 '(', NULL
, N_("Start a group"), TWO_DASHES
},
237 { {"end-group", no_argument
, NULL
, ')'},
238 ')', NULL
, N_("End a group"), TWO_DASHES
},
239 { {"accept-unknown-input-arch", no_argument
, NULL
,
240 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
},
242 N_("Accept input files whose architecture cannot be determined"),
244 { {"no-accept-unknown-input-arch", no_argument
, NULL
,
245 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
},
246 '\0', NULL
, N_("Reject input files whose architecture is unknown"),
249 /* The next two options are deprecated because of their similarity to
250 --as-needed and --no-as-needed. They have been replaced by
251 --copy-dt-needed-entries and --no-copy-dt-needed-entries. */
252 { {"add-needed", no_argument
, NULL
, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
},
253 '\0', NULL
, NULL
, NO_HELP
},
254 { {"no-add-needed", no_argument
, NULL
, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
},
255 '\0', NULL
, NULL
, NO_HELP
},
257 { {"as-needed", no_argument
, NULL
, OPTION_ADD_DT_NEEDED_FOR_REGULAR
},
258 '\0', NULL
, N_("Only set DT_NEEDED for following dynamic libs if used"),
260 { {"no-as-needed", no_argument
, NULL
, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
},
261 '\0', NULL
, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
262 " the command line"),
264 { {"assert", required_argument
, NULL
, OPTION_ASSERT
},
265 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH
},
266 { {"Bdynamic", no_argument
, NULL
, OPTION_CALL_SHARED
},
267 '\0', NULL
, N_("Link against shared libraries"), ONE_DASH
},
268 { {"dy", no_argument
, NULL
, OPTION_CALL_SHARED
},
269 '\0', NULL
, NULL
, ONE_DASH
},
270 { {"call_shared", no_argument
, NULL
, OPTION_CALL_SHARED
},
271 '\0', NULL
, NULL
, ONE_DASH
},
272 { {"Bstatic", no_argument
, NULL
, OPTION_NON_SHARED
},
273 '\0', NULL
, N_("Do not link against shared libraries"), ONE_DASH
},
274 { {"dn", no_argument
, NULL
, OPTION_NON_SHARED
},
275 '\0', NULL
, NULL
, ONE_DASH
},
276 { {"non_shared", no_argument
, NULL
, OPTION_NON_SHARED
},
277 '\0', NULL
, NULL
, ONE_DASH
},
278 { {"static", no_argument
, NULL
, OPTION_NON_SHARED
},
279 '\0', NULL
, NULL
, ONE_DASH
},
280 { {"Bsymbolic", no_argument
, NULL
, OPTION_SYMBOLIC
},
281 '\0', NULL
, N_("Bind global references locally"), ONE_DASH
},
282 { {"Bsymbolic-functions", no_argument
, NULL
, OPTION_SYMBOLIC_FUNCTIONS
},
283 '\0', NULL
, N_("Bind global function references locally"), ONE_DASH
},
284 { {"check-sections", no_argument
, NULL
, OPTION_CHECK_SECTIONS
},
285 '\0', NULL
, N_("Check section addresses for overlaps (default)"),
287 { {"no-check-sections", no_argument
, NULL
, OPTION_NO_CHECK_SECTIONS
},
288 '\0', NULL
, N_("Do not check section addresses for overlaps"),
290 { {"copy-dt-needed-entries", no_argument
, NULL
,
291 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
},
292 '\0', NULL
, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
294 { {"no-copy-dt-needed-entries", no_argument
, NULL
,
295 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
},
296 '\0', NULL
, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
299 { {"cref", no_argument
, NULL
, OPTION_CREF
},
300 '\0', NULL
, N_("Output cross reference table"), TWO_DASHES
},
301 { {"defsym", required_argument
, NULL
, OPTION_DEFSYM
},
302 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES
},
303 { {"demangle", optional_argument
, NULL
, OPTION_DEMANGLE
},
304 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
306 { {"embedded-relocs", no_argument
, NULL
, OPTION_EMBEDDED_RELOCS
},
307 '\0', NULL
, N_("Generate embedded relocs"), TWO_DASHES
},
308 { {"fatal-warnings", no_argument
, NULL
, OPTION_WARN_FATAL
},
309 '\0', NULL
, N_("Treat warnings as errors"),
311 { {"no-fatal-warnings", no_argument
, NULL
, OPTION_NO_WARN_FATAL
},
312 '\0', NULL
, N_("Do not treat warnings as errors (default)"),
314 { {"fini", required_argument
, NULL
, OPTION_FINI
},
315 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH
},
316 { {"force-exe-suffix", no_argument
, NULL
, OPTION_FORCE_EXE_SUFFIX
},
317 '\0', NULL
, N_("Force generation of file with .exe suffix"), TWO_DASHES
},
318 { {"gc-sections", no_argument
, NULL
, OPTION_GC_SECTIONS
},
319 '\0', NULL
, N_("Remove unused sections (on some targets)"),
321 { {"no-gc-sections", no_argument
, NULL
, OPTION_NO_GC_SECTIONS
},
322 '\0', NULL
, N_("Don't remove unused sections (default)"),
324 { {"print-gc-sections", no_argument
, NULL
, OPTION_PRINT_GC_SECTIONS
},
325 '\0', NULL
, N_("List removed unused sections on stderr"),
327 { {"no-print-gc-sections", no_argument
, NULL
, OPTION_NO_PRINT_GC_SECTIONS
},
328 '\0', NULL
, N_("Do not list removed unused sections"),
330 { {"hash-size=<NUMBER>", required_argument
, NULL
, OPTION_HASH_SIZE
},
331 '\0', NULL
, N_("Set default hash table size close to <NUMBER>"),
333 { {"help", no_argument
, NULL
, OPTION_HELP
},
334 '\0', NULL
, N_("Print option help"), TWO_DASHES
},
335 { {"init", required_argument
, NULL
, OPTION_INIT
},
336 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH
},
337 { {"Map", required_argument
, NULL
, OPTION_MAP
},
338 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH
},
339 { {"no-define-common", no_argument
, NULL
, OPTION_NO_DEFINE_COMMON
},
340 '\0', NULL
, N_("Do not define Common storage"), TWO_DASHES
},
341 { {"no-demangle", no_argument
, NULL
, OPTION_NO_DEMANGLE
},
342 '\0', NULL
, N_("Do not demangle symbol names"), TWO_DASHES
},
343 { {"no-keep-memory", no_argument
, NULL
, OPTION_NO_KEEP_MEMORY
},
344 '\0', NULL
, N_("Use less memory and more disk I/O"), TWO_DASHES
},
345 { {"no-undefined", no_argument
, NULL
, OPTION_NO_UNDEFINED
},
346 '\0', NULL
, N_("Do not allow unresolved references in object files"),
348 { {"allow-shlib-undefined", no_argument
, NULL
, OPTION_ALLOW_SHLIB_UNDEFINED
},
349 '\0', NULL
, N_("Allow unresolved references in shared libraries"),
351 { {"no-allow-shlib-undefined", no_argument
, NULL
,
352 OPTION_NO_ALLOW_SHLIB_UNDEFINED
},
353 '\0', NULL
, N_("Do not allow unresolved references in shared libs"),
355 { {"allow-multiple-definition", no_argument
, NULL
,
356 OPTION_ALLOW_MULTIPLE_DEFINITION
},
357 '\0', NULL
, N_("Allow multiple definitions"), TWO_DASHES
},
358 { {"no-undefined-version", no_argument
, NULL
, OPTION_NO_UNDEFINED_VERSION
},
359 '\0', NULL
, N_("Disallow undefined version"), TWO_DASHES
},
360 { {"default-symver", no_argument
, NULL
, OPTION_DEFAULT_SYMVER
},
361 '\0', NULL
, N_("Create default symbol version"), TWO_DASHES
},
362 { {"default-imported-symver", no_argument
, NULL
,
363 OPTION_DEFAULT_IMPORTED_SYMVER
},
364 '\0', NULL
, N_("Create default symbol version for imported symbols"),
366 { {"no-warn-mismatch", no_argument
, NULL
, OPTION_NO_WARN_MISMATCH
},
367 '\0', NULL
, N_("Don't warn about mismatched input files"), TWO_DASHES
},
368 { {"no-warn-search-mismatch", no_argument
, NULL
,
369 OPTION_NO_WARN_SEARCH_MISMATCH
},
370 '\0', NULL
, N_("Don't warn on finding an incompatible library"),
372 { {"no-whole-archive", no_argument
, NULL
, OPTION_NO_WHOLE_ARCHIVE
},
373 '\0', NULL
, N_("Turn off --whole-archive"), TWO_DASHES
},
374 { {"noinhibit-exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
375 '\0', NULL
, N_("Create an output file even if errors occur"),
377 { {"noinhibit_exec", no_argument
, NULL
, OPTION_NOINHIBIT_EXEC
},
378 '\0', NULL
, NULL
, NO_HELP
},
379 { {"nostdlib", no_argument
, NULL
, OPTION_NOSTDLIB
},
380 '\0', NULL
, N_("Only use library directories specified on\n"
381 " the command line"),
383 { {"oformat", required_argument
, NULL
, OPTION_OFORMAT
},
384 '\0', N_("TARGET"), N_("Specify target of output file"),
385 EXACTLY_TWO_DASHES
},
386 { {"print-output-format", no_argument
, NULL
, OPTION_PRINT_OUTPUT_FORMAT
},
387 '\0', NULL
, N_("Print default output format"), TWO_DASHES
},
388 { {"print-sysroot", no_argument
, NULL
, OPTION_PRINT_SYSROOT
},
389 '\0', NULL
, N_("Print current sysroot"), TWO_DASHES
},
390 { {"qmagic", no_argument
, NULL
, OPTION_IGNORE
},
391 '\0', NULL
, N_("Ignored for Linux compatibility"), ONE_DASH
},
392 { {"reduce-memory-overheads", no_argument
, NULL
,
393 OPTION_REDUCE_MEMORY_OVERHEADS
},
394 '\0', NULL
, N_("Reduce memory overheads, possibly taking much longer"),
396 { {"relax", no_argument
, NULL
, OPTION_RELAX
},
397 '\0', NULL
, N_("Reduce code size by using target specific optimizations"), TWO_DASHES
},
398 { {"no-relax", no_argument
, NULL
, OPTION_NO_RELAX
},
399 '\0', NULL
, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES
},
400 { {"retain-symbols-file", required_argument
, NULL
,
401 OPTION_RETAIN_SYMBOLS_FILE
},
402 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES
},
403 { {"rpath", required_argument
, NULL
, OPTION_RPATH
},
404 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH
},
405 { {"rpath-link", required_argument
, NULL
, OPTION_RPATH_LINK
},
406 '\0', N_("PATH"), N_("Set link time shared library search path"),
408 { {"shared", no_argument
, NULL
, OPTION_SHARED
},
409 '\0', NULL
, N_("Create a shared library"), ONE_DASH
},
410 { {"Bshareable", no_argument
, NULL
, OPTION_SHARED
}, /* FreeBSD. */
411 '\0', NULL
, NULL
, ONE_DASH
},
412 { {"pie", no_argument
, NULL
, OPTION_PIE
},
413 '\0', NULL
, N_("Create a position independent executable"), ONE_DASH
},
414 { {"pic-executable", no_argument
, NULL
, OPTION_PIE
},
415 '\0', NULL
, NULL
, TWO_DASHES
},
416 { {"sort-common", optional_argument
, NULL
, OPTION_SORT_COMMON
},
417 '\0', N_("[=ascending|descending]"),
418 N_("Sort common symbols by alignment [in specified order]"),
420 { {"sort_common", no_argument
, NULL
, OPTION_SORT_COMMON
},
421 '\0', NULL
, NULL
, NO_HELP
},
422 { {"sort-section", required_argument
, NULL
, OPTION_SORT_SECTION
},
423 '\0', N_("name|alignment"),
424 N_("Sort sections by name or maximum alignment"), TWO_DASHES
},
425 { {"spare-dynamic-tags", required_argument
, NULL
, OPTION_SPARE_DYNAMIC_TAGS
},
426 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
428 { {"split-by-file", optional_argument
, NULL
, OPTION_SPLIT_BY_FILE
},
429 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
431 { {"split-by-reloc", optional_argument
, NULL
, OPTION_SPLIT_BY_RELOC
},
432 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
434 { {"stats", no_argument
, NULL
, OPTION_STATS
},
435 '\0', NULL
, N_("Print memory usage statistics"), TWO_DASHES
},
436 { {"target-help", no_argument
, NULL
, OPTION_TARGET_HELP
},
437 '\0', NULL
, N_("Display target specific options"), TWO_DASHES
},
438 { {"task-link", required_argument
, NULL
, OPTION_TASK_LINK
},
439 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES
},
440 { {"traditional-format", no_argument
, NULL
, OPTION_TRADITIONAL_FORMAT
},
441 '\0', NULL
, N_("Use same format as native linker"), TWO_DASHES
},
442 { {"section-start", required_argument
, NULL
, OPTION_SECTION_START
},
443 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
445 { {"Tbss", required_argument
, NULL
, OPTION_TBSS
},
446 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH
},
447 { {"Tdata", required_argument
, NULL
, OPTION_TDATA
},
448 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH
},
449 { {"Ttext", required_argument
, NULL
, OPTION_TTEXT
},
450 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH
},
451 { {"Ttext-segment", required_argument
, NULL
, OPTION_TTEXT_SEGMENT
},
452 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH
},
453 { {"Trodata-segment", required_argument
, NULL
, OPTION_TRODATA_SEGMENT
},
454 '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH
},
455 { {"Tldata-segment", required_argument
, NULL
, OPTION_TLDATA_SEGMENT
},
456 '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH
},
457 { {"unresolved-symbols=<method>", required_argument
, NULL
,
458 OPTION_UNRESOLVED_SYMBOLS
},
459 '\0', NULL
, N_("How to handle unresolved symbols. <method> is:\n"
460 " ignore-all, report-all, ignore-in-object-files,\n"
461 " ignore-in-shared-libs"),
463 { {"verbose", optional_argument
, NULL
, OPTION_VERBOSE
},
464 '\0', N_("[=NUMBER]"),
465 N_("Output lots of information during link"), TWO_DASHES
},
466 { {"dll-verbose", no_argument
, NULL
, OPTION_VERBOSE
}, /* Linux. */
467 '\0', NULL
, NULL
, NO_HELP
},
468 { {"version-script", required_argument
, NULL
, OPTION_VERSION_SCRIPT
},
469 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES
},
470 { {"version-exports-section", required_argument
, NULL
,
471 OPTION_VERSION_EXPORTS_SECTION
},
472 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
473 " SYMBOL as the version."),
475 { {"dynamic-list-data", no_argument
, NULL
, OPTION_DYNAMIC_LIST_DATA
},
476 '\0', NULL
, N_("Add data symbols to dynamic list"), TWO_DASHES
},
477 { {"dynamic-list-cpp-new", no_argument
, NULL
, OPTION_DYNAMIC_LIST_CPP_NEW
},
478 '\0', NULL
, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES
},
479 { {"dynamic-list-cpp-typeinfo", no_argument
, NULL
, OPTION_DYNAMIC_LIST_CPP_TYPEINFO
},
480 '\0', NULL
, N_("Use C++ typeinfo dynamic list"), TWO_DASHES
},
481 { {"dynamic-list", required_argument
, NULL
, OPTION_DYNAMIC_LIST
},
482 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES
},
483 { {"warn-common", no_argument
, NULL
, OPTION_WARN_COMMON
},
484 '\0', NULL
, N_("Warn about duplicate common symbols"), TWO_DASHES
},
485 { {"warn-constructors", no_argument
, NULL
, OPTION_WARN_CONSTRUCTORS
},
486 '\0', NULL
, N_("Warn if global constructors/destructors are seen"),
488 { {"warn-multiple-gp", no_argument
, NULL
, OPTION_WARN_MULTIPLE_GP
},
489 '\0', NULL
, N_("Warn if the multiple GP values are used"), TWO_DASHES
},
490 { {"warn-once", no_argument
, NULL
, OPTION_WARN_ONCE
},
491 '\0', NULL
, N_("Warn only once per undefined symbol"), TWO_DASHES
},
492 { {"warn-section-align", no_argument
, NULL
, OPTION_WARN_SECTION_ALIGN
},
493 '\0', NULL
, N_("Warn if start of section changes due to alignment"),
495 { {"warn-shared-textrel", no_argument
, NULL
, OPTION_WARN_SHARED_TEXTREL
},
496 '\0', NULL
, N_("Warn if shared object has DT_TEXTREL"),
498 { {"warn-alternate-em", no_argument
, NULL
, OPTION_WARN_ALTERNATE_EM
},
499 '\0', NULL
, N_("Warn if an object has alternate ELF machine code"),
501 { {"warn-unresolved-symbols", no_argument
, NULL
,
502 OPTION_WARN_UNRESOLVED_SYMBOLS
},
503 '\0', NULL
, N_("Report unresolved symbols as warnings"), TWO_DASHES
},
504 { {"error-unresolved-symbols", no_argument
, NULL
,
505 OPTION_ERROR_UNRESOLVED_SYMBOLS
},
506 '\0', NULL
, N_("Report unresolved symbols as errors"), TWO_DASHES
},
507 { {"whole-archive", no_argument
, NULL
, OPTION_WHOLE_ARCHIVE
},
508 '\0', NULL
, N_("Include all objects from following archives"),
510 { {"wrap", required_argument
, NULL
, OPTION_WRAP
},
511 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES
},
512 { {"ignore-unresolved-symbol", required_argument
, NULL
,
513 OPTION_IGNORE_UNRESOLVED_SYMBOL
},
515 N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES
},
516 { {"push-state", no_argument
, NULL
, OPTION_PUSH_STATE
},
517 '\0', NULL
, N_("Push state of flags governing input file handling"),
519 { {"pop-state", no_argument
, NULL
, OPTION_POP_STATE
},
520 '\0', NULL
, N_("Pop state of flags governing input file handling"),
524 #define OPTION_COUNT ARRAY_SIZE (ld_options)
527 parse_args (unsigned argc
, char **argv
)
532 char *default_dirlist
= NULL
;
534 struct option
*longopts
;
535 struct option
*really_longopts
;
537 enum report_method how_to_report_unresolved_symbols
= RM_GENERATE_ERROR
;
539 shortopts
= (char *) xmalloc (OPTION_COUNT
* 3 + 2);
540 longopts
= (struct option
*)
541 xmalloc (sizeof (*longopts
) * (OPTION_COUNT
+ 1));
542 really_longopts
= (struct option
*)
543 malloc (sizeof (*really_longopts
) * (OPTION_COUNT
+ 1));
545 /* Starting the short option string with '-' is for programs that
546 expect options and other ARGV-elements in any order and that care about
547 the ordering of the two. We describe each non-option ARGV-element
548 as if it were the argument of an option with character code 1. */
553 for (i
= 0; i
< OPTION_COUNT
; i
++)
555 if (ld_options
[i
].shortopt
!= '\0')
557 shortopts
[is
] = ld_options
[i
].shortopt
;
559 if (ld_options
[i
].opt
.has_arg
== required_argument
560 || ld_options
[i
].opt
.has_arg
== optional_argument
)
564 if (ld_options
[i
].opt
.has_arg
== optional_argument
)
571 if (ld_options
[i
].opt
.name
!= NULL
)
573 if (ld_options
[i
].control
== EXACTLY_TWO_DASHES
)
575 really_longopts
[irl
] = ld_options
[i
].opt
;
580 longopts
[il
] = ld_options
[i
].opt
;
585 shortopts
[is
] = '\0';
586 longopts
[il
].name
= NULL
;
587 really_longopts
[irl
].name
= NULL
;
589 ldemul_add_options (is
, &shortopts
, il
, &longopts
, irl
, &really_longopts
);
591 /* The -G option is ambiguous on different platforms. Sometimes it
592 specifies the largest data size to put into the small data
593 section. Sometimes it is equivalent to --shared. Unfortunately,
594 the first form takes an argument, while the second does not.
596 We need to permit the --shared form because on some platforms,
597 such as Solaris, gcc -shared will pass -G to the linker.
599 To permit either usage, we look through the argument list. If we
600 find -G not followed by a number, we change it into --shared.
601 This will work for most normal cases. */
602 for (i
= 1; i
< argc
; i
++)
603 if (strcmp (argv
[i
], "-G") == 0
605 || ! ISDIGIT (argv
[i
+ 1][0])))
606 argv
[i
] = (char *) "--shared";
608 /* Because we permit long options to start with a single dash, and
609 we have a --library option, and the -l option is conventionally
610 used with an immediately following argument, we can have bad
611 results if somebody tries to use -l with a library whose name
612 happens to start with "ibrary", as in -li. We avoid problems by
613 simply turning -l into --library. This means that users will
614 have to use two dashes in order to use --library, which is OK
615 since that's how it is documented.
617 FIXME: It's possible that this problem can arise for other short
618 options as well, although the user does always have the recourse
619 of adding a space between the option and the argument. */
620 for (i
= 1; i
< argc
; i
++)
622 if (argv
[i
][0] == '-'
624 && argv
[i
][2] != '\0')
628 n
= (char *) xmalloc (strlen (argv
[i
]) + 20);
629 sprintf (n
, "--library=%s", argv
[i
] + 2);
639 static unsigned int defsym_count
;
641 /* Using last_optind lets us avoid calling ldemul_parse_args
642 multiple times on a single option, which would lead to
643 confusion in the internal static variables maintained by
644 getopt. This could otherwise happen for an argument like
645 -nx, in which the -n is parsed as a single option, and we
646 loop around to pick up the -x. */
647 if (optind
!= last_optind
)
648 if (ldemul_parse_args (argc
, argv
))
651 /* getopt_long_only is like getopt_long, but '-' as well as '--'
652 can indicate a long option. */
654 last_optind
= optind
;
655 optc
= getopt_long_only (argc
, argv
, shortopts
, longopts
, &longind
);
658 optind
= last_optind
;
659 optc
= getopt_long (argc
, argv
, "-", really_longopts
, &longind
);
662 if (ldemul_handle_option (optc
))
671 einfo (_("%P: unrecognized option '%s'\n"), argv
[last_optind
]);
675 einfo (_("%P%F: use the --help option for usage information\n"));
677 case 1: /* File name. */
678 lang_add_input_file (optarg
, lang_input_file_is_file_enum
, NULL
);
684 /* For HP/UX compatibility. Actually -a shared should mean
685 ``use only shared libraries'' but, then, we don't
686 currently support shared libraries on HP/UX anyhow. */
687 if (strcmp (optarg
, "archive") == 0)
688 input_flags
.dynamic
= FALSE
;
689 else if (strcmp (optarg
, "shared") == 0
690 || strcmp (optarg
, "default") == 0)
691 input_flags
.dynamic
= TRUE
;
693 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg
);
696 /* FIXME: We just ignore these, but we should handle them. */
697 if (strcmp (optarg
, "definitions") == 0)
699 else if (strcmp (optarg
, "nodefinitions") == 0)
701 else if (strcmp (optarg
, "nosymbolic") == 0)
703 else if (strcmp (optarg
, "pure-text") == 0)
706 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg
);
709 ldfile_add_arch (optarg
);
712 lang_add_target (optarg
);
715 ldfile_open_command_file (optarg
);
716 parser_input
= input_mri_script
;
719 case OPTION_CALL_SHARED
:
720 input_flags
.dynamic
= TRUE
;
722 case OPTION_NON_SHARED
:
723 input_flags
.dynamic
= FALSE
;
726 command_line
.cref
= TRUE
;
727 link_info
.notice_all
= TRUE
;
730 command_line
.force_common_definition
= TRUE
;
734 lex_redirect (optarg
, "--defsym", ++defsym_count
);
735 parser_input
= input_defsym
;
739 case OPTION_DEMANGLE
:
743 enum demangling_styles style
;
745 style
= cplus_demangle_name_to_style (optarg
);
746 if (style
== unknown_demangling
)
747 einfo (_("%F%P: unknown demangling style `%s'\n"),
750 cplus_demangle_set_style (style
);
753 case 'I': /* Used on Solaris. */
754 case OPTION_DYNAMIC_LINKER
:
755 command_line
.interpreter
= optarg
;
758 /* Already handled in ldmain.c. */
761 command_line
.endian
= ENDIAN_BIG
;
764 command_line
.endian
= ENDIAN_LITTLE
;
766 case OPTION_EMBEDDED_RELOCS
:
767 command_line
.embedded_relocs
= TRUE
;
769 case OPTION_EXPORT_DYNAMIC
:
770 case 'E': /* HP/UX compatibility. */
771 link_info
.export_dynamic
= TRUE
;
773 case OPTION_NO_EXPORT_DYNAMIC
:
774 link_info
.export_dynamic
= FALSE
;
777 lang_add_entry (optarg
, TRUE
);
780 if (command_line
.auxiliary_filters
== NULL
)
782 command_line
.auxiliary_filters
= (char **)
783 xmalloc (2 * sizeof (char *));
784 command_line
.auxiliary_filters
[0] = optarg
;
785 command_line
.auxiliary_filters
[1] = NULL
;
793 for (p
= command_line
.auxiliary_filters
; *p
!= NULL
; p
++)
795 command_line
.auxiliary_filters
= (char **)
796 xrealloc (command_line
.auxiliary_filters
,
797 (c
+ 2) * sizeof (char *));
798 command_line
.auxiliary_filters
[c
] = optarg
;
799 command_line
.auxiliary_filters
[c
+ 1] = NULL
;
803 command_line
.filter_shlib
= optarg
;
805 case OPTION_FORCE_EXE_SUFFIX
:
806 command_line
.force_exe_suffix
= TRUE
;
811 g_switch_value
= strtoul (optarg
, &end
, 0);
813 einfo (_("%P%F: invalid number `%s'\n"), optarg
);
819 case OPTION_GC_SECTIONS
:
820 link_info
.gc_sections
= TRUE
;
822 case OPTION_PRINT_GC_SECTIONS
:
823 link_info
.print_gc_sections
= TRUE
;
830 ldfile_add_library_path (optarg
, TRUE
);
833 lang_add_input_file (optarg
, lang_input_file_is_l_enum
, NULL
);
836 config
.map_filename
= "-";
839 /* Ignore. Was handled in a pre-parse. */
842 config
.map_filename
= optarg
;
845 config
.text_read_only
= FALSE
;
846 config
.magic_demand_paged
= FALSE
;
847 input_flags
.dynamic
= FALSE
;
849 case OPTION_NO_OMAGIC
:
850 config
.text_read_only
= TRUE
;
851 config
.magic_demand_paged
= TRUE
;
852 /* NB/ Does not set input_flags.dynamic to TRUE.
853 Use --call-shared or -Bdynamic for this. */
856 config
.magic_demand_paged
= FALSE
;
857 input_flags
.dynamic
= FALSE
;
859 case OPTION_NO_DEFINE_COMMON
:
860 command_line
.inhibit_common_definition
= TRUE
;
862 case OPTION_NO_DEMANGLE
:
865 case OPTION_NO_GC_SECTIONS
:
866 link_info
.gc_sections
= FALSE
;
868 case OPTION_NO_PRINT_GC_SECTIONS
:
869 link_info
.print_gc_sections
= FALSE
;
871 case OPTION_NO_KEEP_MEMORY
:
872 link_info
.keep_memory
= FALSE
;
874 case OPTION_NO_UNDEFINED
:
875 link_info
.unresolved_syms_in_objects
876 = how_to_report_unresolved_symbols
;
878 case OPTION_ALLOW_SHLIB_UNDEFINED
:
879 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
881 case OPTION_NO_ALLOW_SHLIB_UNDEFINED
:
882 link_info
.unresolved_syms_in_shared_libs
883 = how_to_report_unresolved_symbols
;
885 case OPTION_UNRESOLVED_SYMBOLS
:
886 if (strcmp (optarg
, "ignore-all") == 0)
888 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
889 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
891 else if (strcmp (optarg
, "report-all") == 0)
893 link_info
.unresolved_syms_in_objects
894 = how_to_report_unresolved_symbols
;
895 link_info
.unresolved_syms_in_shared_libs
896 = how_to_report_unresolved_symbols
;
898 else if (strcmp (optarg
, "ignore-in-object-files") == 0)
900 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
901 link_info
.unresolved_syms_in_shared_libs
902 = how_to_report_unresolved_symbols
;
904 else if (strcmp (optarg
, "ignore-in-shared-libs") == 0)
906 link_info
.unresolved_syms_in_objects
907 = how_to_report_unresolved_symbols
;
908 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
911 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg
);
913 case OPTION_WARN_UNRESOLVED_SYMBOLS
:
914 how_to_report_unresolved_symbols
= RM_GENERATE_WARNING
;
915 if (link_info
.unresolved_syms_in_objects
== RM_GENERATE_ERROR
)
916 link_info
.unresolved_syms_in_objects
= RM_GENERATE_WARNING
;
917 if (link_info
.unresolved_syms_in_shared_libs
== RM_GENERATE_ERROR
)
918 link_info
.unresolved_syms_in_shared_libs
= RM_GENERATE_WARNING
;
921 case OPTION_ERROR_UNRESOLVED_SYMBOLS
:
922 how_to_report_unresolved_symbols
= RM_GENERATE_ERROR
;
923 if (link_info
.unresolved_syms_in_objects
== RM_GENERATE_WARNING
)
924 link_info
.unresolved_syms_in_objects
= RM_GENERATE_ERROR
;
925 if (link_info
.unresolved_syms_in_shared_libs
== RM_GENERATE_WARNING
)
926 link_info
.unresolved_syms_in_shared_libs
= RM_GENERATE_ERROR
;
928 case OPTION_ALLOW_MULTIPLE_DEFINITION
:
929 link_info
.allow_multiple_definition
= TRUE
;
931 case OPTION_NO_UNDEFINED_VERSION
:
932 link_info
.allow_undefined_version
= FALSE
;
934 case OPTION_DEFAULT_SYMVER
:
935 link_info
.create_default_symver
= TRUE
;
937 case OPTION_DEFAULT_IMPORTED_SYMVER
:
938 link_info
.default_imported_symver
= TRUE
;
940 case OPTION_NO_WARN_MISMATCH
:
941 command_line
.warn_mismatch
= FALSE
;
943 case OPTION_NO_WARN_SEARCH_MISMATCH
:
944 command_line
.warn_search_mismatch
= FALSE
;
946 case OPTION_NOINHIBIT_EXEC
:
947 force_make_executable
= TRUE
;
949 case OPTION_NOSTDLIB
:
950 config
.only_cmd_line_lib_dirs
= TRUE
;
952 case OPTION_NO_WHOLE_ARCHIVE
:
953 input_flags
.whole_archive
= FALSE
;
956 /* FIXME "-O<non-digits> <value>" used to set the address of
957 section <non-digits>. Was this for compatibility with
958 something, or can we create a new option to do that
959 (with a syntax similar to -defsym)?
960 getopt can't handle two args to an option without kludges. */
962 /* Enable optimizations of output files. */
963 link_info
.optimize
= strtoul (optarg
, NULL
, 0) ? TRUE
: FALSE
;
966 lang_add_output (optarg
, 0);
969 lang_add_output_format (optarg
, NULL
, NULL
, 0);
971 case OPTION_PRINT_SYSROOT
:
976 case OPTION_PRINT_OUTPUT_FORMAT
:
977 command_line
.print_output_format
= TRUE
;
979 #ifdef ENABLE_PLUGINS
981 plugin_opt_plugin (optarg
);
983 case OPTION_PLUGIN_OPT
:
984 if (plugin_opt_plugin_arg (optarg
))
985 einfo(_("%P%F: bad -plugin-opt option\n"));
987 #endif /* ENABLE_PLUGINS */
989 link_info
.emitrelocations
= TRUE
;
993 if (optind
== last_optind
)
994 /* This can happen if the user put "-rpath,a" on the command
995 line. (Or something similar. The comma is important).
996 Getopt becomes confused and thinks that this is a -r option
997 but it cannot parse the text after the -r so it refuses to
998 increment the optind counter. Detect this case and issue
999 an error message here. We cannot just make this a warning,
1000 increment optind, and continue because getopt is too confused
1001 and will seg-fault the next time around. */
1002 einfo(_("%P%F: unrecognised option: %s\n"), argv
[optind
]);
1004 link_info
.relocatable
= TRUE
;
1005 config
.build_constructors
= FALSE
;
1006 config
.magic_demand_paged
= FALSE
;
1007 config
.text_read_only
= FALSE
;
1008 input_flags
.dynamic
= FALSE
;
1011 /* The GNU linker traditionally uses -R to mean to include
1012 only the symbols from a file. The Solaris linker uses -R
1013 to set the path used by the runtime linker to find
1014 libraries. This is the GNU linker -rpath argument. We
1015 try to support both simultaneously by checking the file
1016 named. If it is a directory, rather than a regular file,
1017 we assume -rpath was meant. */
1021 if (stat (optarg
, &s
) >= 0
1022 && ! S_ISDIR (s
.st_mode
))
1024 lang_add_input_file (optarg
,
1025 lang_input_file_is_symbols_only_enum
,
1032 if (command_line
.rpath
== NULL
)
1033 command_line
.rpath
= xstrdup (optarg
);
1036 size_t rpath_len
= strlen (command_line
.rpath
);
1037 size_t optarg_len
= strlen (optarg
);
1039 char *cp
= command_line
.rpath
;
1041 /* First see whether OPTARG is already in the path. */
1044 if (strncmp (optarg
, cp
, optarg_len
) == 0
1045 && (cp
[optarg_len
] == 0
1046 || cp
[optarg_len
] == config
.rpath_separator
))
1050 /* Not yet found. */
1051 cp
= strchr (cp
, config
.rpath_separator
);
1059 buf
= (char *) xmalloc (rpath_len
+ optarg_len
+ 2);
1060 sprintf (buf
, "%s%c%s", command_line
.rpath
,
1061 config
.rpath_separator
, optarg
);
1062 free (command_line
.rpath
);
1063 command_line
.rpath
= buf
;
1067 case OPTION_RPATH_LINK
:
1068 if (command_line
.rpath_link
== NULL
)
1069 command_line
.rpath_link
= xstrdup (optarg
);
1074 buf
= (char *) xmalloc (strlen (command_line
.rpath_link
)
1077 sprintf (buf
, "%s%c%s", command_line
.rpath_link
,
1078 config
.rpath_separator
, optarg
);
1079 free (command_line
.rpath_link
);
1080 command_line
.rpath_link
= buf
;
1083 case OPTION_NO_RELAX
:
1089 case OPTION_RETAIN_SYMBOLS_FILE
:
1090 add_keepsyms_file (optarg
);
1093 link_info
.strip
= strip_debugger
;
1096 link_info
.strip
= strip_all
;
1098 case OPTION_STRIP_DISCARDED
:
1099 link_info
.strip_discarded
= TRUE
;
1101 case OPTION_NO_STRIP_DISCARDED
:
1102 link_info
.strip_discarded
= FALSE
;
1105 if (config
.has_shared
)
1107 link_info
.shared
= TRUE
;
1108 /* When creating a shared library, the default
1109 behaviour is to ignore any unresolved references. */
1110 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1111 link_info
.unresolved_syms_in_objects
= RM_IGNORE
;
1112 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1113 link_info
.unresolved_syms_in_shared_libs
= RM_IGNORE
;
1116 einfo (_("%P%F: -shared not supported\n"));
1119 if (config
.has_shared
)
1121 link_info
.shared
= TRUE
;
1122 link_info
.pie
= TRUE
;
1125 einfo (_("%P%F: -pie not supported\n"));
1127 case 'h': /* Used on Solaris. */
1129 if (optarg
[0] == '\0' && command_line
.soname
1130 && command_line
.soname
[0])
1131 einfo (_("%P: SONAME must not be empty string; keeping previous one\n"));
1133 command_line
.soname
= optarg
;
1135 case OPTION_SORT_COMMON
:
1137 || strcmp (optarg
, N_("descending")) == 0)
1138 config
.sort_common
= sort_descending
;
1139 else if (strcmp (optarg
, N_("ascending")) == 0)
1140 config
.sort_common
= sort_ascending
;
1142 einfo (_("%P%F: invalid common section sorting option: %s\n"),
1145 case OPTION_SORT_SECTION
:
1146 if (strcmp (optarg
, N_("name")) == 0)
1147 sort_section
= by_name
;
1148 else if (strcmp (optarg
, N_("alignment")) == 0)
1149 sort_section
= by_alignment
;
1151 einfo (_("%P%F: invalid section sorting option: %s\n"),
1155 config
.stats
= TRUE
;
1157 case OPTION_SYMBOLIC
:
1158 command_line
.symbolic
= symbolic
;
1160 case OPTION_SYMBOLIC_FUNCTIONS
:
1161 command_line
.symbolic
= symbolic_functions
;
1167 previous_script_handle
= saved_script_handle
;
1168 ldfile_open_command_file (optarg
);
1169 parser_input
= input_script
;
1171 previous_script_handle
= NULL
;
1173 case OPTION_DEFAULT_SCRIPT
:
1174 command_line
.default_script
= optarg
;
1176 case OPTION_SECTION_START
:
1182 /* Check for <something>=<somthing>... */
1183 optarg2
= strchr (optarg
, '=');
1184 if (optarg2
== NULL
)
1185 einfo (_("%P%F: invalid argument to option"
1186 " \"--section-start\"\n"));
1190 /* So far so good. Are all the args present? */
1191 if ((*optarg
== '\0') || (*optarg2
== '\0'))
1192 einfo (_("%P%F: missing argument(s) to option"
1193 " \"--section-start\"\n"));
1195 /* We must copy the section name as set_section_start
1196 doesn't do it for us. */
1197 len
= optarg2
- optarg
;
1198 sec_name
= (char *) xmalloc (len
);
1199 memcpy (sec_name
, optarg
, len
- 1);
1200 sec_name
[len
- 1] = 0;
1202 /* Then set it... */
1203 set_section_start (sec_name
, optarg2
);
1206 case OPTION_TARGET_HELP
:
1207 /* Mention any target specific options. */
1208 ldemul_list_emulation_options (stdout
);
1211 set_segment_start (".bss", optarg
);
1214 set_segment_start (".data", optarg
);
1217 set_segment_start (".text", optarg
);
1219 case OPTION_TTEXT_SEGMENT
:
1220 set_segment_start (".text-segment", optarg
);
1222 case OPTION_TRODATA_SEGMENT
:
1223 set_segment_start (".rodata-segment", optarg
);
1225 case OPTION_TLDATA_SEGMENT
:
1226 set_segment_start (".ldata-segment", optarg
);
1228 case OPTION_TRADITIONAL_FORMAT
:
1229 link_info
.traditional_format
= TRUE
;
1231 case OPTION_TASK_LINK
:
1232 link_info
.task_link
= TRUE
;
1233 /* Fall through - do an implied -r option. */
1235 link_info
.relocatable
= TRUE
;
1236 config
.build_constructors
= TRUE
;
1237 config
.magic_demand_paged
= FALSE
;
1238 config
.text_read_only
= FALSE
;
1239 input_flags
.dynamic
= FALSE
;
1242 ldlang_add_undef (optarg
, TRUE
);
1246 lang_add_unique (optarg
);
1248 config
.unique_orphan_sections
= TRUE
;
1250 case OPTION_VERBOSE
:
1252 version_printed
= TRUE
;
1254 overflow_cutoff_limit
= -2;
1258 int level ATTRIBUTE_UNUSED
= strtoul (optarg
, &end
, 0);
1260 einfo (_("%P%F: invalid number `%s'\n"), optarg
);
1261 #ifdef ENABLE_PLUGINS
1262 report_plugin_symbols
= level
> 1;
1263 #endif /* ENABLE_PLUGINS */
1268 version_printed
= TRUE
;
1272 version_printed
= TRUE
;
1274 case OPTION_VERSION
:
1278 case OPTION_VERSION_SCRIPT
:
1279 /* This option indicates a small script that only specifies
1280 version information. Read it, but don't assume that
1281 we've seen a linker script. */
1283 FILE *hold_script_handle
;
1285 hold_script_handle
= saved_script_handle
;
1286 ldfile_open_command_file (optarg
);
1287 saved_script_handle
= hold_script_handle
;
1288 parser_input
= input_version_script
;
1292 case OPTION_VERSION_EXPORTS_SECTION
:
1293 /* This option records a version symbol to be applied to the
1294 symbols listed for export to be found in the object files
1295 .exports sections. */
1296 command_line
.version_exports_section
= optarg
;
1298 case OPTION_DYNAMIC_LIST_DATA
:
1299 command_line
.dynamic_list
= dynamic_list_data
;
1300 if (command_line
.symbolic
== symbolic
)
1301 command_line
.symbolic
= symbolic_unset
;
1303 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO
:
1304 lang_append_dynamic_list_cpp_typeinfo ();
1305 if (command_line
.dynamic_list
!= dynamic_list_data
)
1306 command_line
.dynamic_list
= dynamic_list
;
1307 if (command_line
.symbolic
== symbolic
)
1308 command_line
.symbolic
= symbolic_unset
;
1310 case OPTION_DYNAMIC_LIST_CPP_NEW
:
1311 lang_append_dynamic_list_cpp_new ();
1312 if (command_line
.dynamic_list
!= dynamic_list_data
)
1313 command_line
.dynamic_list
= dynamic_list
;
1314 if (command_line
.symbolic
== symbolic
)
1315 command_line
.symbolic
= symbolic_unset
;
1317 case OPTION_DYNAMIC_LIST
:
1318 /* This option indicates a small script that only specifies
1319 a dynamic list. Read it, but don't assume that we've
1320 seen a linker script. */
1322 FILE *hold_script_handle
;
1324 hold_script_handle
= saved_script_handle
;
1325 ldfile_open_command_file (optarg
);
1326 saved_script_handle
= hold_script_handle
;
1327 parser_input
= input_dynamic_list
;
1330 if (command_line
.dynamic_list
!= dynamic_list_data
)
1331 command_line
.dynamic_list
= dynamic_list
;
1332 if (command_line
.symbolic
== symbolic
)
1333 command_line
.symbolic
= symbolic_unset
;
1335 case OPTION_WARN_COMMON
:
1336 config
.warn_common
= TRUE
;
1338 case OPTION_WARN_CONSTRUCTORS
:
1339 config
.warn_constructors
= TRUE
;
1341 case OPTION_WARN_FATAL
:
1342 config
.fatal_warnings
= TRUE
;
1344 case OPTION_NO_WARN_FATAL
:
1345 config
.fatal_warnings
= FALSE
;
1347 case OPTION_WARN_MULTIPLE_GP
:
1348 config
.warn_multiple_gp
= TRUE
;
1350 case OPTION_WARN_ONCE
:
1351 config
.warn_once
= TRUE
;
1353 case OPTION_WARN_SECTION_ALIGN
:
1354 config
.warn_section_align
= TRUE
;
1356 case OPTION_WARN_SHARED_TEXTREL
:
1357 link_info
.warn_shared_textrel
= TRUE
;
1359 case OPTION_WARN_ALTERNATE_EM
:
1360 link_info
.warn_alternate_em
= TRUE
;
1362 case OPTION_WHOLE_ARCHIVE
:
1363 input_flags
.whole_archive
= TRUE
;
1365 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC
:
1366 input_flags
.add_DT_NEEDED_for_dynamic
= TRUE
;
1368 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC
:
1369 input_flags
.add_DT_NEEDED_for_dynamic
= FALSE
;
1371 case OPTION_ADD_DT_NEEDED_FOR_REGULAR
:
1372 input_flags
.add_DT_NEEDED_for_regular
= TRUE
;
1374 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR
:
1375 input_flags
.add_DT_NEEDED_for_regular
= FALSE
;
1380 case OPTION_IGNORE_UNRESOLVED_SYMBOL
:
1381 add_ignoresym (&link_info
, optarg
);
1383 case OPTION_DISCARD_NONE
:
1384 link_info
.discard
= discard_none
;
1387 link_info
.discard
= discard_l
;
1390 link_info
.discard
= discard_all
;
1393 if (CONST_STRNEQ (optarg
, "P,"))
1395 if (default_dirlist
!= NULL
)
1396 free (default_dirlist
);
1397 default_dirlist
= xstrdup (optarg
);
1402 case OPTION_SPARE_DYNAMIC_TAGS
:
1403 link_info
.spare_dynamic_tags
= strtoul (optarg
, NULL
, 0);
1405 case OPTION_SPLIT_BY_RELOC
:
1407 config
.split_by_reloc
= strtoul (optarg
, NULL
, 0);
1409 config
.split_by_reloc
= 32768;
1411 case OPTION_SPLIT_BY_FILE
:
1413 config
.split_by_file
= bfd_scan_vma (optarg
, NULL
, 0);
1415 config
.split_by_file
= 1;
1417 case OPTION_CHECK_SECTIONS
:
1418 command_line
.check_section_addresses
= 1;
1420 case OPTION_NO_CHECK_SECTIONS
:
1421 command_line
.check_section_addresses
= 0;
1423 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH
:
1424 command_line
.accept_unknown_input_arch
= TRUE
;
1426 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH
:
1427 command_line
.accept_unknown_input_arch
= FALSE
;
1430 lang_enter_group ();
1435 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1437 lang_leave_group ();
1442 link_info
.init_function
= optarg
;
1446 link_info
.fini_function
= optarg
;
1449 case OPTION_REDUCE_MEMORY_OVERHEADS
:
1450 link_info
.reduce_memory_overheads
= TRUE
;
1451 if (config
.hash_table_size
== 0)
1452 config
.hash_table_size
= 1021;
1455 case OPTION_HASH_SIZE
:
1457 bfd_size_type new_size
;
1459 new_size
= strtoul (optarg
, NULL
, 0);
1461 config
.hash_table_size
= new_size
;
1463 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1467 case OPTION_PUSH_STATE
:
1468 input_flags
.pushed
= xmemdup (&input_flags
,
1469 sizeof (input_flags
),
1470 sizeof (input_flags
));
1473 case OPTION_POP_STATE
:
1474 if (input_flags
.pushed
== NULL
)
1475 einfo (_("%P%F: no state pushed before popping\n"));
1478 struct lang_input_statement_flags
*oldp
= input_flags
.pushed
;
1479 memcpy (&input_flags
, oldp
, sizeof (input_flags
));
1486 if (command_line
.soname
&& command_line
.soname
[0] == '\0')
1488 einfo (_("%P: SONAME must not be empty string; ignored\n"));
1489 command_line
.soname
= NULL
;
1494 lang_leave_group ();
1498 if (default_dirlist
!= NULL
)
1500 set_default_dirlist (default_dirlist
);
1501 free (default_dirlist
);
1504 if (link_info
.unresolved_syms_in_objects
== RM_NOT_YET_SET
)
1505 /* FIXME: Should we allow emulations a chance to set this ? */
1506 link_info
.unresolved_syms_in_objects
= how_to_report_unresolved_symbols
;
1508 if (link_info
.unresolved_syms_in_shared_libs
== RM_NOT_YET_SET
)
1509 /* FIXME: Should we allow emulations a chance to set this ? */
1510 link_info
.unresolved_syms_in_shared_libs
= how_to_report_unresolved_symbols
;
1512 if (link_info
.relocatable
)
1514 if (command_line
.check_section_addresses
< 0)
1515 command_line
.check_section_addresses
= 0;
1516 if (link_info
.shared
)
1517 einfo (_("%P%F: -r and -shared may not be used together\n"));
1520 /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data,
1521 --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and
1522 --dynamic-list FILE. -Bsymbolic and -Bsymbolic-functions are
1523 for shared libraries. -Bsymbolic overrides all others and vice
1525 switch (command_line
.symbolic
)
1527 case symbolic_unset
:
1530 /* -Bsymbolic is for shared library only. */
1531 if (link_info
.shared
)
1533 link_info
.symbolic
= TRUE
;
1534 /* Should we free the unused memory? */
1535 link_info
.dynamic_list
= NULL
;
1536 command_line
.dynamic_list
= dynamic_list_unset
;
1539 case symbolic_functions
:
1540 /* -Bsymbolic-functions is for shared library only. */
1541 if (link_info
.shared
)
1542 command_line
.dynamic_list
= dynamic_list_data
;
1546 switch (command_line
.dynamic_list
)
1548 case dynamic_list_unset
:
1550 case dynamic_list_data
:
1551 link_info
.dynamic_data
= TRUE
;
1553 link_info
.dynamic
= TRUE
;
1557 if (! link_info
.shared
)
1559 if (command_line
.filter_shlib
)
1560 einfo (_("%P%F: -F may not be used without -shared\n"));
1561 if (command_line
.auxiliary_filters
)
1562 einfo (_("%P%F: -f may not be used without -shared\n"));
1565 if (! link_info
.shared
|| link_info
.pie
)
1566 link_info
.executable
= TRUE
;
1568 /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
1569 don't see how else this can be handled, since in this case we
1570 must preserve all externally visible symbols. */
1571 if (link_info
.relocatable
&& link_info
.strip
== strip_all
)
1573 link_info
.strip
= strip_debugger
;
1574 if (link_info
.discard
== discard_sec_merge
)
1575 link_info
.discard
= discard_all
;
1579 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1580 library search path. */
1583 set_default_dirlist (char *dirlist_ptr
)
1589 p
= strchr (dirlist_ptr
, PATH_SEPARATOR
);
1592 if (*dirlist_ptr
!= '\0')
1593 ldfile_add_library_path (dirlist_ptr
, TRUE
);
1596 dirlist_ptr
= p
+ 1;
1601 set_section_start (char *sect
, char *valstr
)
1604 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
1606 einfo (_("%P%F: invalid hex number `%s'\n"), valstr
);
1607 lang_section_start (sect
, exp_intop (val
), NULL
);
1611 set_segment_start (const char *section
, char *valstr
)
1617 bfd_vma val
= bfd_scan_vma (valstr
, &end
, 16);
1619 einfo (_("%P%F: invalid hex number `%s'\n"), valstr
);
1620 /* If we already have an entry for this segment, update the existing
1623 for (seg
= segments
; seg
; seg
= seg
->next
)
1624 if (strcmp (seg
->name
, name
) == 0)
1629 /* There was no existing value so we must create a new segment
1631 seg
= (segment_type
*) stat_alloc (sizeof (*seg
));
1635 /* Add it to the linked list of segments. */
1636 seg
->next
= segments
;
1638 /* Historically, -Ttext and friends set the base address of a
1639 particular section. For backwards compatibility, we still do
1640 that. If a SEGMENT_START directive is seen, the section address
1641 assignment will be disabled. */
1642 lang_section_start (section
, exp_intop (val
), seg
);
1646 /* Print help messages for the options. */
1652 const char **targets
, **pp
;
1655 printf (_("Usage: %s [options] file...\n"), program_name
);
1657 printf (_("Options:\n"));
1658 for (i
= 0; i
< OPTION_COUNT
; i
++)
1660 if (ld_options
[i
].doc
!= NULL
)
1673 if (ld_options
[j
].shortopt
!= '\0'
1674 && ld_options
[j
].control
!= NO_HELP
)
1676 printf ("%s-%c", comma
? ", " : "", ld_options
[j
].shortopt
);
1677 len
+= (comma
? 2 : 0) + 2;
1678 if (ld_options
[j
].arg
!= NULL
)
1680 if (ld_options
[j
].opt
.has_arg
!= optional_argument
)
1685 printf ("%s", _(ld_options
[j
].arg
));
1686 len
+= strlen (_(ld_options
[j
].arg
));
1692 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
1697 if (ld_options
[j
].opt
.name
!= NULL
1698 && ld_options
[j
].control
!= NO_HELP
)
1701 (ld_options
[j
].control
== TWO_DASHES
1702 || ld_options
[j
].control
== EXACTLY_TWO_DASHES
);
1706 two_dashes
? "-" : "",
1707 ld_options
[j
].opt
.name
);
1708 len
+= ((comma
? 2 : 0)
1710 + (two_dashes
? 1 : 0)
1711 + strlen (ld_options
[j
].opt
.name
));
1712 if (ld_options
[j
].arg
!= NULL
)
1714 printf (" %s", _(ld_options
[j
].arg
));
1715 len
+= 1 + strlen (_(ld_options
[j
].arg
));
1721 while (j
< OPTION_COUNT
&& ld_options
[j
].doc
== NULL
);
1729 for (; len
< 30; len
++)
1732 printf ("%s\n", _(ld_options
[i
].doc
));
1735 printf (_(" @FILE"));
1736 for (len
= strlen (" @FILE"); len
< 30; len
++)
1738 printf (_("Read options from FILE\n"));
1740 /* Note: Various tools (such as libtool) depend upon the
1741 format of the listings below - do not change them. */
1742 /* xgettext:c-format */
1743 printf (_("%s: supported targets:"), program_name
);
1744 targets
= bfd_target_list ();
1745 for (pp
= targets
; *pp
!= NULL
; pp
++)
1746 printf (" %s", *pp
);
1750 /* xgettext:c-format */
1751 printf (_("%s: supported emulations: "), program_name
);
1752 ldemul_list_emulations (stdout
);
1755 /* xgettext:c-format */
1756 printf (_("%s: emulation specific options:\n"), program_name
);
1757 ldemul_list_emulation_options (stdout
);
1760 if (REPORT_BUGS_TO
[0])
1761 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO
);