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[deliverable/binutils-gdb.git] / ld / lexsup.c
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252b5132 1/* Parse options for the GNU linker.
b90efa5b 2 Copyright (C) 1991-2015 Free Software Foundation, Inc.
252b5132 3
f96b4a7b 4 This file is part of the GNU Binutils.
252b5132 5
f96b4a7b 6 This program is free software; you can redistribute it and/or modify
53b2a62f 7 it under the terms of the GNU General Public License as published by
f96b4a7b
NC		 8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
252b5132 10
f96b4a7b 11 This program is distributed in the hope that it will be useful,
53b2a62f
NC		 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.
252b5132 15
53b2a62f 16 You should have received a copy of the GNU General Public License
f96b4a7b
NC		 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. */
252b5132 20
3db64b00 21#include "sysdep.h"
252b5132 22#include "bfd.h"
c428fa83 23#include "bfdver.h"
252b5132
RH		 24#include "libiberty.h"
25#include <stdio.h>
26#include <string.h>
3882b010 27#include "safe-ctype.h"
252b5132
RH		 28#include "getopt.h"
29#include "bfdlink.h"
30#include "ld.h"
31#include "ldmain.h"
32#include "ldmisc.h"
33#include "ldexp.h"
34#include "ldlang.h"
df2a7313 35#include <ldgram.h>
252b5132
RH		 36#include "ldlex.h"
37#include "ldfile.h"
38#include "ldver.h"
39#include "ldemul.h"
28c309a2 40#include "demangle.h"
5d3236ee
DK		 41#ifdef ENABLE_PLUGINS
42#include "plugin.h"
43#endif /* ENABLE_PLUGINS */
252b5132
RH		 44
45#ifndef PATH_SEPARATOR
46#if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
47#define PATH_SEPARATOR ';'
48#else
49#define PATH_SEPARATOR ':'
50#endif
51#endif
52
5cc18311 53/* Somewhere above, sys/stat.h got included . . . . */
252b5132
RH		 54#if !defined(S_ISDIR) && defined(S_IFDIR)
55#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
56#endif
57
1579bae1
AM		 58static void set_default_dirlist (char *);
59static void set_section_start (char *, char *);
ba916c8a 60static void set_segment_start (const char *, char *);
1579bae1 61static void help (void);
252b5132 62
252b5132
RH		 63/* The long options. This structure is used for both the option
64 parsing and the help text. */
65
1e9cc1c2
NC		 66enum control_enum {
67 /* Use one dash before long option name. */
68 ONE_DASH,
69 /* Use two dashes before long option name. */
70 TWO_DASHES,
71 /* Only accept two dashes before the long option name.
72 This is an overloading of the use of this enum, since originally it
73 was only intended to tell the --help display function how to display
74 the long option name. This feature was added in order to resolve
75 the confusion about the -omagic command line switch. Is it setting
76 the output file name to "magic" or is it setting the NMAGIC flag on
77 the output ? It has been decided that it is setting the output file
78 name, and that if you want to set the NMAGIC flag you should use -N
79 or --omagic. */
80 EXACTLY_TWO_DASHES,
81 /* Don't mention this option in --help output. */
82 NO_HELP
83};
84
b79e8c78
NC		 85struct ld_option
86{
252b5132
RH		 87 /* The long option information. */
88 struct option opt;
89 /* The short option with the same meaning ('\0' if none). */
90 char shortopt;
91 /* The name of the argument (NULL if none). */
92 const char *arg;
93 /* The documentation string. If this is NULL, this is a synonym for
94 the previous option. */
95 const char *doc;
1e9cc1c2 96 enum control_enum control;
252b5132
RH		 97};
98
b79e8c78
NC		 99static const struct ld_option ld_options[] =
100{
252b5132 101 { {NULL, required_argument, NULL, '\0'},
6feb9908
AM		 102 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
103 ONE_DASH },
252b5132 104 { {"architecture", required_argument, NULL, 'A'},
6feb9908 105 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
252b5132 106 { {"format", required_argument, NULL, 'b'},
6feb9908
AM		 107 'b', N_("TARGET"), N_("Specify target for following input files"),
108 TWO_DASHES },
252b5132 109 { {"mri-script", required_argument, NULL, 'c'},
6feb9908 110 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
252b5132 111 { {"dc", no_argument, NULL, 'd'},
6feb9908 112 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
252b5132 113 { {"dp", no_argument, NULL, 'd'},
6feb9908 114 '\0', NULL, NULL, ONE_DASH },
252b5132 115 { {"entry", required_argument, NULL, 'e'},
6feb9908 116 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
252b5132 117 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
6feb9908 118 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
267e2722
CD		 119 { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
120 '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
252b5132 121 { {"EB", no_argument, NULL, OPTION_EB},
6feb9908 122 '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
252b5132 123 { {"EL", no_argument, NULL, OPTION_EL},
6feb9908 124 '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
252b5132 125 { {"auxiliary", required_argument, NULL, 'f'},
6feb9908
AM		 126 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
127 TWO_DASHES },
252b5132 128 { {"filter", required_argument, NULL, 'F'},
6feb9908
AM		 129 'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
130 TWO_DASHES },
252b5132 131 { {NULL, no_argument, NULL, '\0'},
6feb9908 132 'g', NULL, N_("Ignored"), ONE_DASH },
252b5132 133 { {"gpsize", required_argument, NULL, 'G'},
6feb9908
AM		 134 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
135 TWO_DASHES },
252b5132 136 { {"soname", required_argument, NULL, OPTION_SONAME},
6feb9908 137 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
506eee22 138 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
6feb9908
AM		 139 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
140 TWO_DASHES },
252b5132 141 { {"library", required_argument, NULL, 'l'},
6feb9908 142 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
252b5132 143 { {"library-path", required_argument, NULL, 'L'},
6feb9908
AM		 144 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
145 TWO_DASHES },
e2243057
RS		 146 { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
147 '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
252b5132 148 { {NULL, required_argument, NULL, '\0'},
6feb9908 149 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
252b5132 150 { {"print-map", no_argument, NULL, 'M'},
6feb9908 151 'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
252b5132 152 { {"nmagic", no_argument, NULL, 'n'},
6feb9908 153 'n', NULL, N_("Do not page align data"), TWO_DASHES },
252b5132 154 { {"omagic", no_argument, NULL, 'N'},
6feb9908
AM		 155 'N', NULL, N_("Do not page align data, do not make text readonly"),
156 EXACTLY_TWO_DASHES },
63fd3b82 157 { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
6feb9908
AM		 158 '\0', NULL, N_("Page align data, make text readonly"),
159 EXACTLY_TWO_DASHES },
252b5132 160 { {"output", required_argument, NULL, 'o'},
6feb9908 161 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
252b5132 162 { {NULL, required_argument, NULL, '\0'},
6feb9908 163 'O', NULL, N_("Optimize output file"), ONE_DASH },
5d3236ee
DK		 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 },
94bf3a11
L		 169 { {"flto", optional_argument, NULL, OPTION_IGNORE},
170 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
171 ONE_DASH },
172 { {"flto-partition=", required_argument, NULL, OPTION_IGNORE},
173 '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
174 ONE_DASH },
5d3236ee 175#endif /* ENABLE_PLUGINS */
add24320
L		 176 { {"fuse-ld=", required_argument, NULL, OPTION_IGNORE},
177 '\0', NULL, N_("Ignored for GCC linker option compatibility"),
178 ONE_DASH },
88b9e2eb
L		 179 { {"map-whole-files", optional_argument, NULL, OPTION_IGNORE},
180 '\0', NULL, N_("Ignored for gold option compatibility"),
181 TWO_DASHES },
182 { {"no-map-whole-files", optional_argument, NULL, OPTION_IGNORE},
183 '\0', NULL, N_("Ignored for gold option compatibility"),
184 TWO_DASHES },
252b5132 185 { {"Qy", no_argument, NULL, OPTION_IGNORE},
6feb9908 186 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
a712da20 187 { {"emit-relocs", no_argument, NULL, 'q'},
6feb9908 188 'q', NULL, "Generate relocations in final output", TWO_DASHES },
1049f94e 189 { {"relocatable", no_argument, NULL, 'r'},
6feb9908 190 'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
252b5132 191 { {NULL, no_argument, NULL, '\0'},
6feb9908 192 'i', NULL, NULL, ONE_DASH },
252b5132 193 { {"just-symbols", required_argument, NULL, 'R'},
6feb9908
AM		 194 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
195 TWO_DASHES },
252b5132 196 { {"strip-all", no_argument, NULL, 's'},
6feb9908 197 's', NULL, N_("Strip all symbols"), TWO_DASHES },
252b5132 198 { {"strip-debug", no_argument, NULL, 'S'},
6feb9908 199 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
d5cd3933 200 { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
6feb9908 201 '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
d5cd3933 202 { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
6feb9908 203 '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
252b5132 204 { {"trace", no_argument, NULL, 't'},
6feb9908 205 't', NULL, N_("Trace file opens"), TWO_DASHES },
252b5132 206 { {"script", required_argument, NULL, 'T'},
6feb9908 207 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
14be8564
L		 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 },
252b5132 212 { {"undefined", required_argument, NULL, 'u'},
6feb9908
AM		 213 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
214 TWO_DASHES },
0a618243
AB		 215 { {"require-defined", required_argument, NULL, OPTION_REQUIRE_DEFINED_SYMBOL},
216 '\0', N_("SYMBOL"), N_("Require SYMBOL be defined in the final output"),
217 TWO_DASHES },
577a0623 218 { {"unique", optional_argument, NULL, OPTION_UNIQUE},
6feb9908
AM		 219 '\0', N_("[=SECTION]"),
220 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
252b5132 221 { {"Ur", no_argument, NULL, OPTION_UR},
6feb9908 222 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
252b5132 223 { {"version", no_argument, NULL, OPTION_VERSION},
6feb9908 224 'v', NULL, N_("Print version information"), TWO_DASHES },
252b5132 225 { {NULL, no_argument, NULL, '\0'},
6feb9908 226 'V', NULL, N_("Print version and emulation information"), ONE_DASH },
252b5132 227 { {"discard-all", no_argument, NULL, 'x'},
6feb9908 228 'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
252b5132 229 { {"discard-locals", no_argument, NULL, 'X'},
6feb9908 230 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
f5fa8ca2 231 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
6feb9908 232 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
252b5132 233 { {"trace-symbol", required_argument, NULL, 'y'},
6feb9908 234 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
252b5132 235 { {NULL, required_argument, NULL, '\0'},
6feb9908
AM		 236 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
237 ONE_DASH },
252b5132 238 { {"start-group", no_argument, NULL, '('},
6feb9908 239 '(', NULL, N_("Start a group"), TWO_DASHES },
252b5132 240 { {"end-group", no_argument, NULL, ')'},
6feb9908
AM		 241 ')', NULL, N_("End a group"), TWO_DASHES },
242 { {"accept-unknown-input-arch", no_argument, NULL,
243 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
244 '\0', NULL,
245 N_("Accept input files whose architecture cannot be determined"),
246 TWO_DASHES },
247 { {"no-accept-unknown-input-arch", no_argument, NULL,
248 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
249 '\0', NULL, N_("Reject input files whose architecture is unknown"),
250 TWO_DASHES },
ddbb8a31
NC		 251
252 /* The next two options are deprecated because of their similarity to
253 --as-needed and --no-as-needed. They have been replaced by
99bca8f9 254 --copy-dt-needed-entries and --no-copy-dt-needed-entries. */
ddbb8a31
NC		 255 { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
256 '\0', NULL, NULL, NO_HELP },
257 { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
258 '\0', NULL, NULL, NO_HELP },
259
260 { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR},
8fdd7217
NC		 261 '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
262 TWO_DASHES },
ddbb8a31
NC		 263 { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR},
264 '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
265 " the command line"),
8fdd7217 266 TWO_DASHES },
252b5132 267 { {"assert", required_argument, NULL, OPTION_ASSERT},
6feb9908 268 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
252b5132 269 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
6feb9908 270 '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
252b5132 271 { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
6feb9908 272 '\0', NULL, NULL, ONE_DASH },
252b5132 273 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
6feb9908 274 '\0', NULL, NULL, ONE_DASH },
252b5132 275 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
6feb9908 276 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
252b5132 277 { {"dn", no_argument, NULL, OPTION_NON_SHARED},
6feb9908 278 '\0', NULL, NULL, ONE_DASH },
252b5132 279 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
6feb9908 280 '\0', NULL, NULL, ONE_DASH },
252b5132 281 { {"static", no_argument, NULL, OPTION_NON_SHARED},
6feb9908 282 '\0', NULL, NULL, ONE_DASH },
252b5132 283 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
6feb9908 284 '\0', NULL, N_("Bind global references locally"), ONE_DASH },
d8cf8b51 285 { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
40b36307 286 '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
252b5132 287 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
6feb9908
AM		 288 '\0', NULL, N_("Check section addresses for overlaps (default)"),
289 TWO_DASHES },
252b5132 290 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
6feb9908
AM		 291 '\0', NULL, N_("Do not check section addresses for overlaps"),
292 TWO_DASHES },
ddbb8a31
NC		 293 { {"copy-dt-needed-entries", no_argument, NULL,
294 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
295 '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
296 TWO_DASHES },
297 { {"no-copy-dt-needed-entries", no_argument, NULL,
298 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
299 '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
300 TWO_DASHES },
301
252b5132 302 { {"cref", no_argument, NULL, OPTION_CREF},
6feb9908 303 '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
252b5132 304 { {"defsym", required_argument, NULL, OPTION_DEFSYM},
6feb9908 305 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
28c309a2 306 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
6feb9908
AM		 307 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
308 TWO_DASHES },
252b5132 309 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
6feb9908 310 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
8fdd7217
NC		 311 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
312 '\0', NULL, N_("Treat warnings as errors"),
313 TWO_DASHES },
0fe58ccd
NC		 314 { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
315 '\0', NULL, N_("Do not treat warnings as errors (default)"),
316 TWO_DASHES },
3dbf70a2 317 { {"fini", required_argument, NULL, OPTION_FINI},
6feb9908 318 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
252b5132 319 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
6feb9908 320 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
252b5132 321 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
6feb9908
AM		 322 '\0', NULL, N_("Remove unused sections (on some targets)"),
323 TWO_DASHES },
252b5132 324 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
6feb9908
AM		 325 '\0', NULL, N_("Don't remove unused sections (default)"),
326 TWO_DASHES },
c17d87de
NC		 327 { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
328 '\0', NULL, N_("List removed unused sections on stderr"),
329 TWO_DASHES },
330 { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
331 '\0', NULL, N_("Do not list removed unused sections"),
332 TWO_DASHES },
2d643429 333 { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
6feb9908
AM		 334 '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
335 TWO_DASHES },
252b5132 336 { {"help", no_argument, NULL, OPTION_HELP},
6feb9908 337 '\0', NULL, N_("Print option help"), TWO_DASHES },
3dbf70a2 338 { {"init", required_argument, NULL, OPTION_INIT},
6feb9908 339 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
252b5132 340 { {"Map", required_argument, NULL, OPTION_MAP},
6feb9908 341 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
4818e05f 342 { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
6feb9908 343 '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
252b5132 344 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
6feb9908 345 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
252b5132 346 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
6feb9908 347 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
252b5132 348 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
6feb9908
AM		 349 '\0', NULL, N_("Do not allow unresolved references in object files"),
350 TWO_DASHES },
b79e8c78 351 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
cc643b88 352 '\0', NULL, N_("Allow unresolved references in shared libraries"),
6feb9908
AM		 353 TWO_DASHES },
354 { {"no-allow-shlib-undefined", no_argument, NULL,
355 OPTION_NO_ALLOW_SHLIB_UNDEFINED},
356 '\0', NULL, N_("Do not allow unresolved references in shared libs"),
357 TWO_DASHES },
358 { {"allow-multiple-definition", no_argument, NULL,
359 OPTION_ALLOW_MULTIPLE_DEFINITION},
360 '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
31941635 361 { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
6feb9908 362 '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
3e3b46e5
PB		 363 { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
364 '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
fc0e6df6
PB		 365 { {"default-imported-symver", no_argument, NULL,
366 OPTION_DEFAULT_IMPORTED_SYMVER},
367 '\0', NULL, N_("Create default symbol version for imported symbols"),
368 TWO_DASHES },
252b5132 369 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
6feb9908 370 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
fe7929ce
AM		 371 { {"no-warn-search-mismatch", no_argument, NULL,
372 OPTION_NO_WARN_SEARCH_MISMATCH},
373 '\0', NULL, N_("Don't warn on finding an incompatible library"),
374 TWO_DASHES},
252b5132 375 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
6feb9908 376 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
252b5132 377 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
6feb9908
AM		 378 '\0', NULL, N_("Create an output file even if errors occur"),
379 TWO_DASHES },
252b5132 380 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
6feb9908 381 '\0', NULL, NULL, NO_HELP },
361b220e 382 { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
6feb9908 383 '\0', NULL, N_("Only use library directories specified on\n"
c58dea77
AM		 384 " the command line"),
385 ONE_DASH },
252b5132 386 { {"oformat", required_argument, NULL, OPTION_OFORMAT},
6feb9908
AM		 387 '\0', N_("TARGET"), N_("Specify target of output file"),
388 EXACTLY_TWO_DASHES },
30824704
RM		 389 { {"print-output-format", no_argument, NULL, OPTION_PRINT_OUTPUT_FORMAT},
390 '\0', NULL, N_("Print default output format"), TWO_DASHES },
cb9322a8
HPN		 391 { {"print-sysroot", no_argument, NULL, OPTION_PRINT_SYSROOT},
392 '\0', NULL, N_("Print current sysroot"), TWO_DASHES },
252b5132 393 { {"qmagic", no_argument, NULL, OPTION_IGNORE},
6feb9908
AM		 394 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
395 { {"reduce-memory-overheads", no_argument, NULL,
396 OPTION_REDUCE_MEMORY_OVERHEADS},
397 '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
398 TWO_DASHES },
252b5132 399 { {"relax", no_argument, NULL, OPTION_RELAX},
28d5f677
NC		 400 '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES },
401 { {"no-relax", no_argument, NULL, OPTION_NO_RELAX},
402 '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES },
252b5132 403 { {"retain-symbols-file", required_argument, NULL,
6feb9908
AM		 404 OPTION_RETAIN_SYMBOLS_FILE},
405 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
252b5132 406 { {"rpath", required_argument, NULL, OPTION_RPATH},
6feb9908 407 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
252b5132 408 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
6feb9908
AM		 409 '\0', N_("PATH"), N_("Set link time shared library search path"),
410 ONE_DASH },
252b5132 411 { {"shared", no_argument, NULL, OPTION_SHARED},
6feb9908 412 '\0', NULL, N_("Create a shared library"), ONE_DASH },
252b5132 413 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
6feb9908 414 '\0', NULL, NULL, ONE_DASH },
36af4a4e 415 { {"pie", no_argument, NULL, OPTION_PIE},
6feb9908 416 '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
36af4a4e 417 { {"pic-executable", no_argument, NULL, OPTION_PIE},
6feb9908 418 '\0', NULL, NULL, TWO_DASHES },
de7dd2bd 419 { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
9d5777a3
RM		 420 '\0', N_("[=ascending|descending]"),
421 N_("Sort common symbols by alignment [in specified order]"),
de7dd2bd 422 TWO_DASHES },
252b5132 423 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
6feb9908 424 '\0', NULL, NULL, NO_HELP },
bcaa7b3e 425 { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
9d5777a3 426 '\0', N_("name|alignment"),
bcaa7b3e 427 N_("Sort sections by name or maximum alignment"), TWO_DASHES },
db6751f2 428 { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
6feb9908
AM		 429 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
430 TWO_DASHES },
a854a4a7 431 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
6feb9908
AM		 432 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
433 TWO_DASHES },
a854a4a7 434 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
6feb9908
AM		 435 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
436 TWO_DASHES },
252b5132 437 { {"stats", no_argument, NULL, OPTION_STATS},
6feb9908 438 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
ea20a7da 439 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
6feb9908 440 '\0', NULL, N_("Display target specific options"), TWO_DASHES },
252b5132 441 { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
6feb9908 442 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
252b5132 443 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
6feb9908 444 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
176355da 445 { {"section-start", required_argument, NULL, OPTION_SECTION_START},
6feb9908
AM		 446 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
447 TWO_DASHES },
252b5132 448 { {"Tbss", required_argument, NULL, OPTION_TBSS},
6feb9908 449 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
252b5132 450 { {"Tdata", required_argument, NULL, OPTION_TDATA},
6feb9908 451 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
252b5132 452 { {"Ttext", required_argument, NULL, OPTION_TTEXT},
6feb9908 453 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
258795f5
L		 454 { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT},
455 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
9d5777a3
RM		 456 { {"Trodata-segment", required_argument, NULL, OPTION_TRODATA_SEGMENT},
457 '\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH },
0d705e9f
AM		 458 { {"Tldata-segment", required_argument, NULL, OPTION_TLDATA_SEGMENT},
459 '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH },
6feb9908
AM		 460 { {"unresolved-symbols=<method>", required_argument, NULL,
461 OPTION_UNRESOLVED_SYMBOLS},
462 '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n"
c58dea77
AM		 463 " ignore-all, report-all, ignore-in-object-files,\n"
464 " ignore-in-shared-libs"),
465 TWO_DASHES },
1715a13c
L		 466 { {"verbose", optional_argument, NULL, OPTION_VERBOSE},
467 '\0', N_("[=NUMBER]"),
468 N_("Output lots of information during link"), TWO_DASHES },
252b5132 469 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */
6feb9908 470 '\0', NULL, NULL, NO_HELP },
252b5132 471 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
6feb9908 472 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
252b5132
RH		 473 { {"version-exports-section", required_argument, NULL,
474 OPTION_VERSION_EXPORTS_SECTION },
6feb9908 475 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
c58dea77
AM		 476 " SYMBOL as the version."),
477 TWO_DASHES },
40b36307
L		 478 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
479 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
480 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
481 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
55255dae
L		 482 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
483 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
484 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
485 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
252b5132 486 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
6feb9908 487 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
252b5132 488 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
6feb9908
AM		 489 '\0', NULL, N_("Warn if global constructors/destructors are seen"),
490 TWO_DASHES },
252b5132 491 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
6feb9908 492 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
252b5132 493 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
6feb9908 494 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
3ea60775
NC		 495 { {"warn-orphan", no_argument, NULL, OPTION_WARN_ORPHAN},
496 '\0', NULL, N_("Warn if any orphan sections are encountered"), TWO_DASHES },
497 { {"no-warn-orphan", no_argument, NULL, OPTION_NO_WARN_ORPHAN},
498 '\0', NULL, N_("Do not warn if orphan sections are encountered (default)"), TWO_DASHES },
252b5132 499 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
6feb9908
AM		 500 '\0', NULL, N_("Warn if start of section changes due to alignment"),
501 TWO_DASHES },
8fdd7217
NC		 502 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
503 '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
504 TWO_DASHES },
a0c402a5
L		 505 { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
506 '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
507 TWO_DASHES },
6feb9908
AM		 508 { {"warn-unresolved-symbols", no_argument, NULL,
509 OPTION_WARN_UNRESOLVED_SYMBOLS},
560e09e9 510 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
6feb9908
AM		 511 { {"error-unresolved-symbols", no_argument, NULL,
512 OPTION_ERROR_UNRESOLVED_SYMBOLS},
560e09e9 513 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
252b5132 514 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
6feb9908
AM		 515 '\0', NULL, N_("Include all objects from following archives"),
516 TWO_DASHES },
252b5132 517 { {"wrap", required_argument, NULL, OPTION_WRAP},
6feb9908 518 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
0e86e20e
AM		 519 { {"ignore-unresolved-symbol", required_argument, NULL,
520 OPTION_IGNORE_UNRESOLVED_SYMBOL},
521 '\0', N_("SYMBOL"),
522 N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES },
26278bb8
UD		 523 { {"push-state", no_argument, NULL, OPTION_PUSH_STATE},
524 '\0', NULL, N_("Push state of flags governing input file handling"),
525 TWO_DASHES },
526 { {"pop-state", no_argument, NULL, OPTION_POP_STATE},
527 '\0', NULL, N_("Pop state of flags governing input file handling"),
528 TWO_DASHES },
3604cb1f
TG		 529 { {"print-memory-usage", no_argument, NULL, OPTION_PRINT_MEMORY_USAGE},
530 '\0', NULL, N_("Report target memory usage"), TWO_DASHES },
252b5132
RH		 531};
532
e4897a32 533#define OPTION_COUNT ARRAY_SIZE (ld_options)
252b5132 534
252b5132 535void
1579bae1 536parse_args (unsigned argc, char **argv)
252b5132 537{
e4897a32
NC		 538 unsigned i;
539 int is, il, irl;
252b5132
RH		 540 int ingroup = 0;
541 char *default_dirlist = NULL;
3bcf5557
AM		 542 char *shortopts;
543 struct option *longopts;
544 struct option *really_longopts;
252b5132 545 int last_optind;
560e09e9 546 enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
252b5132 547
1e9cc1c2
NC		 548 shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2);
549 longopts = (struct option *)
550 xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
551 really_longopts = (struct option *)
552 malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
3bcf5557 553
252b5132
RH		 554 /* Starting the short option string with '-' is for programs that
555 expect options and other ARGV-elements in any order and that care about
556 the ordering of the two. We describe each non-option ARGV-element
557 as if it were the argument of an option with character code 1. */
558 shortopts[0] = '-';
559 is = 1;
560 il = 0;
e4897a32 561 irl = 0;
252b5132
RH		 562 for (i = 0; i < OPTION_COUNT; i++)
563 {
564 if (ld_options[i].shortopt != '\0')
565 {
566 shortopts[is] = ld_options[i].shortopt;
567 ++is;
568 if (ld_options[i].opt.has_arg == required_argument
569 || ld_options[i].opt.has_arg == optional_argument)
570 {
571 shortopts[is] = ':';
572 ++is;
573 if (ld_options[i].opt.has_arg == optional_argument)
574 {
575 shortopts[is] = ':';
576 ++is;
577 }
578 }
579 }
580 if (ld_options[i].opt.name != NULL)
581 {
e4897a32
NC		 582 if (ld_options[i].control == EXACTLY_TWO_DASHES)
583 {
584 really_longopts[irl] = ld_options[i].opt;
585 ++irl;
586 }
587 else
588 {
589 longopts[il] = ld_options[i].opt;
590 ++il;
591 }
252b5132
RH		 592 }
593 }
594 shortopts[is] = '\0';
595 longopts[il].name = NULL;
e4897a32 596 really_longopts[irl].name = NULL;
252b5132 597
3bcf5557
AM		 598 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
599
252b5132
RH		 600 /* The -G option is ambiguous on different platforms. Sometimes it
601 specifies the largest data size to put into the small data
602 section. Sometimes it is equivalent to --shared. Unfortunately,
603 the first form takes an argument, while the second does not.
604
605 We need to permit the --shared form because on some platforms,
606 such as Solaris, gcc -shared will pass -G to the linker.
607
608 To permit either usage, we look through the argument list. If we
609 find -G not followed by a number, we change it into --shared.
610 This will work for most normal cases. */
611 for (i = 1; i < argc; i++)
612 if (strcmp (argv[i], "-G") == 0
613 && (i + 1 >= argc
3882b010 614 || ! ISDIGIT (argv[i + 1][0])))
252b5132
RH		 615 argv[i] = (char *) "--shared";
616
617 /* Because we permit long options to start with a single dash, and
618 we have a --library option, and the -l option is conventionally
619 used with an immediately following argument, we can have bad
620 results if somebody tries to use -l with a library whose name
621 happens to start with "ibrary", as in -li. We avoid problems by
622 simply turning -l into --library. This means that users will
623 have to use two dashes in order to use --library, which is OK
624 since that's how it is documented.
625
626 FIXME: It's possible that this problem can arise for other short
627 options as well, although the user does always have the recourse
628 of adding a space between the option and the argument. */
629 for (i = 1; i < argc; i++)
630 {
631 if (argv[i][0] == '-'
632 && argv[i][1] == 'l'
633 && argv[i][2] != '\0')
634 {
635 char *n;
636
1e9cc1c2 637 n = (char *) xmalloc (strlen (argv[i]) + 20);
252b5132
RH		 638 sprintf (n, "--library=%s", argv[i] + 2);
639 argv[i] = n;
640 }
641 }
642
643 last_optind = -1;
644 while (1)
645 {
89894c62 646 int longind;
252b5132 647 int optc;
dab69f68 648 static unsigned int defsym_count;
252b5132
RH		 649
650 /* Using last_optind lets us avoid calling ldemul_parse_args
651 multiple times on a single option, which would lead to
652 confusion in the internal static variables maintained by
653 getopt. This could otherwise happen for an argument like
654 -nx, in which the -n is parsed as a single option, and we
655 loop around to pick up the -x. */
656 if (optind != last_optind)
89894c62
AM		 657 if (ldemul_parse_args (argc, argv))
658 continue;
252b5132
RH		 659
660 /* getopt_long_only is like getopt_long, but '-' as well as '--'
661 can indicate a long option. */
0fc3347a 662 opterr = 0;
89894c62 663 last_optind = optind;
252b5132 664 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
0fc3347a
NC		 665 if (optc == '?')
666 {
89894c62
AM		 667 optind = last_optind;
668 optc = getopt_long (argc, argv, "-", really_longopts, &longind);
0fc3347a 669 }
b7ed8fad 670
3bcf5557
AM		 671 if (ldemul_handle_option (optc))
672 continue;
673
252b5132
RH		 674 if (optc == -1)
675 break;
0fc3347a 676
252b5132
RH		 677 switch (optc)
678 {
0fc3347a 679 case '?':
89894c62 680 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
058a363d
BE		 681 /* Fall through. */
682
252b5132 683 default:
210a7bd1
NC		 684 einfo (_("%P%F: use the --help option for usage information\n"));
685
252b5132 686 case 1: /* File name. */
1579bae1 687 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
252b5132
RH		 688 break;
689
690 case OPTION_IGNORE:
691 break;
692 case 'a':
693 /* For HP/UX compatibility. Actually -a shared should mean
1579bae1
AM		 694 ``use only shared libraries'' but, then, we don't
695 currently support shared libraries on HP/UX anyhow. */
252b5132 696 if (strcmp (optarg, "archive") == 0)
66be1055 697 input_flags.dynamic = FALSE;
252b5132
RH		 698 else if (strcmp (optarg, "shared") == 0
699 || strcmp (optarg, "default") == 0)
66be1055 700 input_flags.dynamic = TRUE;
252b5132
RH		 701 else
702 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
703 break;
704 case OPTION_ASSERT:
705 /* FIXME: We just ignore these, but we should handle them. */
706 if (strcmp (optarg, "definitions") == 0)
707 ;
708 else if (strcmp (optarg, "nodefinitions") == 0)
709 ;
710 else if (strcmp (optarg, "nosymbolic") == 0)
711 ;
712 else if (strcmp (optarg, "pure-text") == 0)
713 ;
714 else
715 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
716 break;
717 case 'A':
718 ldfile_add_arch (optarg);
719 break;
720 case 'b':
721 lang_add_target (optarg);
722 break;
723 case 'c':
724 ldfile_open_command_file (optarg);
725 parser_input = input_mri_script;
726 yyparse ();
727 break;
728 case OPTION_CALL_SHARED:
66be1055 729 input_flags.dynamic = TRUE;
252b5132
RH		 730 break;
731 case OPTION_NON_SHARED:
66be1055 732 input_flags.dynamic = FALSE;
252b5132
RH		 733 break;
734 case OPTION_CREF:
b34976b6
AM		 735 command_line.cref = TRUE;
736 link_info.notice_all = TRUE;
252b5132
RH		 737 break;
738 case 'd':
b34976b6 739 command_line.force_common_definition = TRUE;
252b5132
RH		 740 break;
741 case OPTION_DEFSYM:
742 lex_string = optarg;
dab69f68 743 lex_redirect (optarg, "--defsym", ++defsym_count);
252b5132 744 parser_input = input_defsym;
252b5132 745 yyparse ();
252b5132
RH		 746 lex_string = NULL;
747 break;
748 case OPTION_DEMANGLE:
b34976b6 749 demangling = TRUE;
28c309a2
NC		 750 if (optarg != NULL)
751 {
752 enum demangling_styles style;
5cc18311 753
28c309a2 754 style = cplus_demangle_name_to_style (optarg);
5cc18311 755 if (style == unknown_demangling)
1d6d1a2c 756 einfo (_("%F%P: unknown demangling style `%s'\n"),
28c309a2 757 optarg);
5cc18311 758
28c309a2 759 cplus_demangle_set_style (style);
e47d05ad 760 }
252b5132 761 break;
506eee22 762 case 'I': /* Used on Solaris. */
252b5132
RH		 763 case OPTION_DYNAMIC_LINKER:
764 command_line.interpreter = optarg;
765 break;
e2243057
RS		 766 case OPTION_SYSROOT:
767 /* Already handled in ldmain.c. */
768 break;
252b5132
RH		 769 case OPTION_EB:
770 command_line.endian = ENDIAN_BIG;
771 break;
772 case OPTION_EL:
773 command_line.endian = ENDIAN_LITTLE;
774 break;
775 case OPTION_EMBEDDED_RELOCS:
b34976b6 776 command_line.embedded_relocs = TRUE;
252b5132
RH		 777 break;
778 case OPTION_EXPORT_DYNAMIC:
779 case 'E': /* HP/UX compatibility. */
b34976b6 780 link_info.export_dynamic = TRUE;
252b5132 781 break;
267e2722
CD		 782 case OPTION_NO_EXPORT_DYNAMIC:
783 link_info.export_dynamic = FALSE;
784 break;
252b5132 785 case 'e':
b34976b6 786 lang_add_entry (optarg, TRUE);
252b5132
RH		 787 break;
788 case 'f':
789 if (command_line.auxiliary_filters == NULL)
790 {
1e9cc1c2
NC		 791 command_line.auxiliary_filters = (char **)
792 xmalloc (2 * sizeof (char *));
252b5132
RH		 793 command_line.auxiliary_filters[0] = optarg;
794 command_line.auxiliary_filters[1] = NULL;
795 }
796 else
797 {
798 int c;
799 char **p;
800
801 c = 0;
802 for (p = command_line.auxiliary_filters; *p != NULL; p++)
803 ++c;
1e9cc1c2
NC		 804 command_line.auxiliary_filters = (char **)
805 xrealloc (command_line.auxiliary_filters,
1579bae1 806 (c + 2) * sizeof (char *));
252b5132
RH		 807 command_line.auxiliary_filters[c] = optarg;
808 command_line.auxiliary_filters[c + 1] = NULL;
809 }
810 break;
811 case 'F':
812 command_line.filter_shlib = optarg;
813 break;
814 case OPTION_FORCE_EXE_SUFFIX:
b34976b6 815 command_line.force_exe_suffix = TRUE;
252b5132
RH		 816 break;
817 case 'G':
818 {
819 char *end;
820 g_switch_value = strtoul (optarg, &end, 0);
821 if (*end)
822 einfo (_("%P%F: invalid number `%s'\n"), optarg);
823 }
824 break;
825 case 'g':
826 /* Ignore. */
827 break;
828 case OPTION_GC_SECTIONS:
57316bff 829 link_info.gc_sections = TRUE;
252b5132 830 break;
c17d87de
NC		 831 case OPTION_PRINT_GC_SECTIONS:
832 link_info.print_gc_sections = TRUE;
833 break;
252b5132
RH		 834 case OPTION_HELP:
835 help ();
836 xexit (0);
837 break;
838 case 'L':
b34976b6 839 ldfile_add_library_path (optarg, TRUE);
252b5132
RH		 840 break;
841 case 'l':
1579bae1 842 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
252b5132
RH		 843 break;
844 case 'M':
845 config.map_filename = "-";
846 break;
847 case 'm':
848 /* Ignore. Was handled in a pre-parse. */
849 break;
850 case OPTION_MAP:
851 config.map_filename = optarg;
852 break;
853 case 'N':
b34976b6
AM		 854 config.text_read_only = FALSE;
855 config.magic_demand_paged = FALSE;
66be1055 856 input_flags.dynamic = FALSE;
252b5132 857 break;
63fd3b82 858 case OPTION_NO_OMAGIC:
b34976b6
AM		 859 config.text_read_only = TRUE;
860 config.magic_demand_paged = TRUE;
66be1055 861 /* NB/ Does not set input_flags.dynamic to TRUE.
63fd3b82
NC		 862 Use --call-shared or -Bdynamic for this. */
863 break;
252b5132 864 case 'n':
b34976b6 865 config.magic_demand_paged = FALSE;
66be1055 866 input_flags.dynamic = FALSE;
252b5132 867 break;
4818e05f 868 case OPTION_NO_DEFINE_COMMON:
b34976b6 869 command_line.inhibit_common_definition = TRUE;
4818e05f 870 break;
252b5132 871 case OPTION_NO_DEMANGLE:
b34976b6 872 demangling = FALSE;
252b5132
RH		 873 break;
874 case OPTION_NO_GC_SECTIONS:
57316bff 875 link_info.gc_sections = FALSE;
252b5132 876 break;
c17d87de
NC		 877 case OPTION_NO_PRINT_GC_SECTIONS:
878 link_info.print_gc_sections = FALSE;
879 break;
252b5132 880 case OPTION_NO_KEEP_MEMORY:
b34976b6 881 link_info.keep_memory = FALSE;
252b5132
RH		 882 break;
883 case OPTION_NO_UNDEFINED:
6feb9908
AM		 884 link_info.unresolved_syms_in_objects
885 = how_to_report_unresolved_symbols;
252b5132 886 break;
b79e8c78 887 case OPTION_ALLOW_SHLIB_UNDEFINED:
560e09e9 888 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
b79e8c78 889 break;
ae9a127f 890 case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
6feb9908
AM		 891 link_info.unresolved_syms_in_shared_libs
892 = how_to_report_unresolved_symbols;
ae9a127f 893 break;
560e09e9
NC		 894 case OPTION_UNRESOLVED_SYMBOLS:
895 if (strcmp (optarg, "ignore-all") == 0)
896 {
897 link_info.unresolved_syms_in_objects = RM_IGNORE;
898 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
899 }
900 else if (strcmp (optarg, "report-all") == 0)
901 {
6feb9908
AM		 902 link_info.unresolved_syms_in_objects
903 = how_to_report_unresolved_symbols;
904 link_info.unresolved_syms_in_shared_libs
905 = how_to_report_unresolved_symbols;
560e09e9
NC		 906 }
907 else if (strcmp (optarg, "ignore-in-object-files") == 0)
908 {
909 link_info.unresolved_syms_in_objects = RM_IGNORE;
6feb9908
AM		 910 link_info.unresolved_syms_in_shared_libs
911 = how_to_report_unresolved_symbols;
560e09e9
NC		 912 }
913 else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
914 {
6feb9908
AM		 915 link_info.unresolved_syms_in_objects
916 = how_to_report_unresolved_symbols;
560e09e9
NC		 917 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
918 }
919 else
920 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
921 break;
922 case OPTION_WARN_UNRESOLVED_SYMBOLS:
923 how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
924 if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
925 link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
926 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
927 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
928 break;
6feb9908 929
560e09e9
NC		 930 case OPTION_ERROR_UNRESOLVED_SYMBOLS:
931 how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
932 if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
933 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
934 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
935 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
6feb9908 936 break;
aa713662 937 case OPTION_ALLOW_MULTIPLE_DEFINITION:
b34976b6 938 link_info.allow_multiple_definition = TRUE;
aa713662 939 break;
31941635 940 case OPTION_NO_UNDEFINED_VERSION:
b34976b6 941 link_info.allow_undefined_version = FALSE;
31941635 942 break;
3e3b46e5
PB		 943 case OPTION_DEFAULT_SYMVER:
944 link_info.create_default_symver = TRUE;
945 break;
fc0e6df6
PB		 946 case OPTION_DEFAULT_IMPORTED_SYMVER:
947 link_info.default_imported_symver = TRUE;
948 break;
252b5132 949 case OPTION_NO_WARN_MISMATCH:
b34976b6 950 command_line.warn_mismatch = FALSE;
252b5132 951 break;
fe7929ce
AM		 952 case OPTION_NO_WARN_SEARCH_MISMATCH:
953 command_line.warn_search_mismatch = FALSE;
954 break;
252b5132 955 case OPTION_NOINHIBIT_EXEC:
b34976b6 956 force_make_executable = TRUE;
252b5132 957 break;
361b220e 958 case OPTION_NOSTDLIB:
b34976b6 959 config.only_cmd_line_lib_dirs = TRUE;
361b220e 960 break;
252b5132 961 case OPTION_NO_WHOLE_ARCHIVE:
66be1055 962 input_flags.whole_archive = FALSE;
252b5132
RH		 963 break;
964 case 'O':
965 /* FIXME "-O<non-digits> <value>" used to set the address of
966 section <non-digits>. Was this for compatibility with
967 something, or can we create a new option to do that
968 (with a syntax similar to -defsym)?
969 getopt can't handle two args to an option without kludges. */
970
971 /* Enable optimizations of output files. */
b34976b6 972 link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
252b5132
RH		 973 break;
974 case 'o':
5cc18311 975 lang_add_output (optarg, 0);
252b5132
RH		 976 break;
977 case OPTION_OFORMAT:
1579bae1 978 lang_add_output_format (optarg, NULL, NULL, 0);
252b5132 979 break;
cb9322a8
HPN		 980 case OPTION_PRINT_SYSROOT:
981 if (*ld_sysroot)
982 puts (ld_sysroot);
983 xexit (0);
984 break;
30824704
RM		 985 case OPTION_PRINT_OUTPUT_FORMAT:
986 command_line.print_output_format = TRUE;
987 break;
5d3236ee
DK		 988#ifdef ENABLE_PLUGINS
989 case OPTION_PLUGIN:
d82184d7 990 plugin_opt_plugin (optarg);
5d3236ee
DK		 991 break;
992 case OPTION_PLUGIN_OPT:
993 if (plugin_opt_plugin_arg (optarg))
994 einfo(_("%P%F: bad -plugin-opt option\n"));
995 break;
996#endif /* ENABLE_PLUGINS */
a712da20 997 case 'q':
b34976b6 998 link_info.emitrelocations = TRUE;
a712da20 999 break;
8c5ff972 1000 case 'i':
252b5132 1001 case 'r':
210a7bd1
NC		 1002 if (optind == last_optind)
1003 /* This can happen if the user put "-rpath,a" on the command
1004 line. (Or something similar. The comma is important).
1005 Getopt becomes confused and thinks that this is a -r option
1006 but it cannot parse the text after the -r so it refuses to
1007 increment the optind counter. Detect this case and issue
1008 an error message here. We cannot just make this a warning,
1009 increment optind, and continue because getopt is too confused
1010 and will seg-fault the next time around. */
f971c12f 1011 einfo(_("%P%F: unrecognised option: %s\n"), argv[optind]);
b7a26f91 1012
0e1862bb
L		 1013 if (bfd_link_pic (&link_info))
1014 einfo (_("%P%F: -r and %s may not be used together\n"),
1015 bfd_link_dll (&link_info) ? "-shared" : "-pie");
1016
1017 link_info.type = type_relocatable;
b34976b6
AM		 1018 config.build_constructors = FALSE;
1019 config.magic_demand_paged = FALSE;
1020 config.text_read_only = FALSE;
66be1055 1021 input_flags.dynamic = FALSE;
252b5132
RH		 1022 break;
1023 case 'R':
1024 /* The GNU linker traditionally uses -R to mean to include
1025 only the symbols from a file. The Solaris linker uses -R
1026 to set the path used by the runtime linker to find
1027 libraries. This is the GNU linker -rpath argument. We
1028 try to support both simultaneously by checking the file
1029 named. If it is a directory, rather than a regular file,
1030 we assume -rpath was meant. */
1031 {
1032 struct stat s;
1033
1034 if (stat (optarg, &s) >= 0
1035 && ! S_ISDIR (s.st_mode))
1036 {
1037 lang_add_input_file (optarg,
1038 lang_input_file_is_symbols_only_enum,
1579bae1 1039 NULL);
252b5132
RH		 1040 break;
1041 }
1042 }
1043 /* Fall through. */
1044 case OPTION_RPATH:
1045 if (command_line.rpath == NULL)
d1b2b2dc 1046 command_line.rpath = xstrdup (optarg);
252b5132
RH		 1047 else
1048 {
1049 size_t rpath_len = strlen (command_line.rpath);
1050 size_t optarg_len = strlen (optarg);
1051 char *buf;
1052 char *cp = command_line.rpath;
1053
1054 /* First see whether OPTARG is already in the path. */
1055 do
1056 {
c76308d2
RS		 1057 if (strncmp (optarg, cp, optarg_len) == 0
1058 && (cp[optarg_len] == 0
1059 || cp[optarg_len] == config.rpath_separator))
252b5132
RH		 1060 /* We found it. */
1061 break;
1062
1063 /* Not yet found. */
c76308d2 1064 cp = strchr (cp, config.rpath_separator);
252b5132
RH		 1065 if (cp != NULL)
1066 ++cp;
1067 }
1068 while (cp != NULL);
1069
1070 if (cp == NULL)
1071 {
1e9cc1c2 1072 buf = (char *) xmalloc (rpath_len + optarg_len + 2);
c76308d2
RS		 1073 sprintf (buf, "%s%c%s", command_line.rpath,
1074 config.rpath_separator, optarg);
252b5132
RH		 1075 free (command_line.rpath);
1076 command_line.rpath = buf;
1077 }
1078 }
1079 break;
1080 case OPTION_RPATH_LINK:
1081 if (command_line.rpath_link == NULL)
d1b2b2dc 1082 command_line.rpath_link = xstrdup (optarg);
252b5132
RH		 1083 else
1084 {
1085 char *buf;
1086
1e9cc1c2
NC		 1087 buf = (char *) xmalloc (strlen (command_line.rpath_link)
1088 + strlen (optarg)
1089 + 2);
c76308d2
RS		 1090 sprintf (buf, "%s%c%s", command_line.rpath_link,
1091 config.rpath_separator, optarg);
252b5132
RH		 1092 free (command_line.rpath_link);
1093 command_line.rpath_link = buf;
1094 }
1095 break;
28d5f677
NC		 1096 case OPTION_NO_RELAX:
1097 DISABLE_RELAXATION;
1098 break;
252b5132 1099 case OPTION_RELAX:
28d5f677 1100 ENABLE_RELAXATION;
252b5132
RH		 1101 break;
1102 case OPTION_RETAIN_SYMBOLS_FILE:
1103 add_keepsyms_file (optarg);
1104 break;
1105 case 'S':
1106 link_info.strip = strip_debugger;
1107 break;
1108 case 's':
1109 link_info.strip = strip_all;
1110 break;
d5cd3933
AM		 1111 case OPTION_STRIP_DISCARDED:
1112 link_info.strip_discarded = TRUE;
1113 break;
1114 case OPTION_NO_STRIP_DISCARDED:
1115 link_info.strip_discarded = FALSE;
1116 break;
252b5132
RH		 1117 case OPTION_SHARED:
1118 if (config.has_shared)
560e09e9 1119 {
0e1862bb
L		 1120 if (bfd_link_relocatable (&link_info))
1121 einfo (_("%P%F: -r and -shared may not be used together\n"));
1122
1123 link_info.type = type_dll;
560e09e9
NC		 1124 /* When creating a shared library, the default
1125 behaviour is to ignore any unresolved references. */
1126 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1127 link_info.unresolved_syms_in_objects = RM_IGNORE;
1128 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1129 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1130 }
252b5132
RH		 1131 else
1132 einfo (_("%P%F: -shared not supported\n"));
1133 break;
36af4a4e
JJ		 1134 case OPTION_PIE:
1135 if (config.has_shared)
1136 {
0e1862bb
L		 1137 if (bfd_link_relocatable (&link_info))
1138 einfo (_("%P%F: -r and -pie may not be used together\n"));
1139
64d94ba0 1140 link_info.type = type_pie;
36af4a4e
JJ		 1141 }
1142 else
1143 einfo (_("%P%F: -pie not supported\n"));
1144 break;
252b5132
RH		 1145 case 'h': /* Used on Solaris. */
1146 case OPTION_SONAME:
b0054819
UD		 1147 if (optarg[0] == '\0' && command_line.soname
1148 && command_line.soname[0])
1149 einfo (_("%P: SONAME must not be empty string; keeping previous one\n"));
1150 else
1151 command_line.soname = optarg;
252b5132
RH		 1152 break;
1153 case OPTION_SORT_COMMON:
de7dd2bd
NC		 1154 if (optarg == NULL
1155 || strcmp (optarg, N_("descending")) == 0)
1156 config.sort_common = sort_descending;
1157 else if (strcmp (optarg, N_("ascending")) == 0)
1158 config.sort_common = sort_ascending;
1159 else
1160 einfo (_("%P%F: invalid common section sorting option: %s\n"),
1161 optarg);
252b5132 1162 break;
bcaa7b3e
L		 1163 case OPTION_SORT_SECTION:
1164 if (strcmp (optarg, N_("name")) == 0)
1165 sort_section = by_name;
1166 else if (strcmp (optarg, N_("alignment")) == 0)
1167 sort_section = by_alignment;
1168 else
1169 einfo (_("%P%F: invalid section sorting option: %s\n"),
1170 optarg);
1171 break;
252b5132 1172 case OPTION_STATS:
b34976b6 1173 config.stats = TRUE;
252b5132
RH		 1174 break;
1175 case OPTION_SYMBOLIC:
d8cf8b51
L		 1176 command_line.symbolic = symbolic;
1177 break;
1178 case OPTION_SYMBOLIC_FUNCTIONS:
1179 command_line.symbolic = symbolic_functions;
252b5132
RH		 1180 break;
1181 case 't':
b34976b6 1182 trace_files = TRUE;
252b5132
RH		 1183 break;
1184 case 'T':
53d25da6 1185 previous_script_handle = saved_script_handle;
252b5132
RH		 1186 ldfile_open_command_file (optarg);
1187 parser_input = input_script;
1188 yyparse ();
53d25da6 1189 previous_script_handle = NULL;
252b5132 1190 break;
14be8564
L		 1191 case OPTION_DEFAULT_SCRIPT:
1192 command_line.default_script = optarg;
1193 break;
176355da
NC		 1194 case OPTION_SECTION_START:
1195 {
1196 char *optarg2;
227aeb07
AM		 1197 char *sec_name;
1198 int len;
176355da
NC		 1199
1200 /* Check for <something>=<somthing>... */
1201 optarg2 = strchr (optarg, '=');
1202 if (optarg2 == NULL)
6feb9908
AM		 1203 einfo (_("%P%F: invalid argument to option"
1204 " \"--section-start\"\n"));
176355da 1205
e47d05ad 1206 optarg2++;
5cc18311 1207
176355da
NC		 1208 /* So far so good. Are all the args present? */
1209 if ((*optarg == '\0') || (*optarg2 == '\0'))
6feb9908
AM		 1210 einfo (_("%P%F: missing argument(s) to option"
1211 " \"--section-start\"\n"));
176355da 1212
227aeb07
AM		 1213 /* We must copy the section name as set_section_start
1214 doesn't do it for us. */
1215 len = optarg2 - optarg;
1e9cc1c2 1216 sec_name = (char *) xmalloc (len);
227aeb07
AM		 1217 memcpy (sec_name, optarg, len - 1);
1218 sec_name[len - 1] = 0;
176355da
NC		 1219
1220 /* Then set it... */
227aeb07 1221 set_section_start (sec_name, optarg2);
176355da
NC		 1222 }
1223 break;
ea20a7da
CC		 1224 case OPTION_TARGET_HELP:
1225 /* Mention any target specific options. */
b7a26f91
KH		 1226 ldemul_list_emulation_options (stdout);
1227 exit (0);
252b5132 1228 case OPTION_TBSS:
ba916c8a 1229 set_segment_start (".bss", optarg);
252b5132
RH		 1230 break;
1231 case OPTION_TDATA:
ba916c8a 1232 set_segment_start (".data", optarg);
252b5132
RH		 1233 break;
1234 case OPTION_TTEXT:
ba916c8a 1235 set_segment_start (".text", optarg);
252b5132 1236 break;
258795f5
L		 1237 case OPTION_TTEXT_SEGMENT:
1238 set_segment_start (".text-segment", optarg);
1239 break;
9d5777a3
RM		 1240 case OPTION_TRODATA_SEGMENT:
1241 set_segment_start (".rodata-segment", optarg);
1242 break;
0d705e9f
AM		 1243 case OPTION_TLDATA_SEGMENT:
1244 set_segment_start (".ldata-segment", optarg);
1245 break;
252b5132 1246 case OPTION_TRADITIONAL_FORMAT:
b34976b6 1247 link_info.traditional_format = TRUE;
252b5132
RH		 1248 break;
1249 case OPTION_TASK_LINK:
b34976b6 1250 link_info.task_link = TRUE;
252b5132
RH		 1251 /* Fall through - do an implied -r option. */
1252 case OPTION_UR:
0e1862bb
L		 1253 if (bfd_link_pic (&link_info))
1254 einfo (_("%P%F: -r and %s may not be used together\n"),
1255 bfd_link_dll (&link_info) ? "-shared" : "-pie");
1256
1257 link_info.type = type_relocatable;
b34976b6
AM		 1258 config.build_constructors = TRUE;
1259 config.magic_demand_paged = FALSE;
1260 config.text_read_only = FALSE;
66be1055 1261 input_flags.dynamic = FALSE;
252b5132
RH		 1262 break;
1263 case 'u':
24898b70 1264 ldlang_add_undef (optarg, TRUE);
252b5132 1265 break;
0a618243
AB		 1266 case OPTION_REQUIRE_DEFINED_SYMBOL:
1267 ldlang_add_require_defined (optarg);
1268 break;
a854a4a7 1269 case OPTION_UNIQUE:
577a0623
AM		 1270 if (optarg != NULL)
1271 lang_add_unique (optarg);
1272 else
b34976b6 1273 config.unique_orphan_sections = TRUE;
a854a4a7 1274 break;
252b5132
RH		 1275 case OPTION_VERBOSE:
1276 ldversion (1);
b34976b6 1277 version_printed = TRUE;
cd6f1cf3 1278 verbose = TRUE;
8aae64e6 1279 overflow_cutoff_limit = -2;
1715a13c
L		 1280 if (optarg != NULL)
1281 {
1282 char *end;
d436a15e 1283 int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0);
1715a13c
L		 1284 if (*end)
1285 einfo (_("%P%F: invalid number `%s'\n"), optarg);
d436a15e 1286#ifdef ENABLE_PLUGINS
1715a13c 1287 report_plugin_symbols = level > 1;
d436a15e 1288#endif /* ENABLE_PLUGINS */
1715a13c 1289 }
252b5132
RH		 1290 break;
1291 case 'v':
1292 ldversion (0);
b34976b6 1293 version_printed = TRUE;
252b5132
RH		 1294 break;
1295 case 'V':
1296 ldversion (1);
b34976b6 1297 version_printed = TRUE;
252b5132
RH		 1298 break;
1299 case OPTION_VERSION:
d32820f2 1300 ldversion (2);
252b5132
RH		 1301 xexit (0);
1302 break;
1303 case OPTION_VERSION_SCRIPT:
1304 /* This option indicates a small script that only specifies
1579bae1
AM		 1305 version information. Read it, but don't assume that
1306 we've seen a linker script. */
252b5132 1307 {
b7a26f91 1308 FILE *hold_script_handle;
252b5132 1309
b9a8de1e 1310 hold_script_handle = saved_script_handle;
252b5132 1311 ldfile_open_command_file (optarg);
b9a8de1e 1312 saved_script_handle = hold_script_handle;
252b5132
RH		 1313 parser_input = input_version_script;
1314 yyparse ();
1315 }
1316 break;
1317 case OPTION_VERSION_EXPORTS_SECTION:
1318 /* This option records a version symbol to be applied to the
1319 symbols listed for export to be found in the object files
1320 .exports sections. */
1321 command_line.version_exports_section = optarg;
1322 break;
40b36307 1323 case OPTION_DYNAMIC_LIST_DATA:
d8cf8b51
L		 1324 command_line.dynamic_list = dynamic_list_data;
1325 if (command_line.symbolic == symbolic)
1326 command_line.symbolic = symbolic_unset;
40b36307 1327 break;
55255dae
L		 1328 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1329 lang_append_dynamic_list_cpp_typeinfo ();
d8cf8b51
L		 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;
40b36307
L		 1334 break;
1335 case OPTION_DYNAMIC_LIST_CPP_NEW:
1336 lang_append_dynamic_list_cpp_new ();
d8cf8b51
L		 1337 if (command_line.dynamic_list != dynamic_list_data)
1338 command_line.dynamic_list = dynamic_list;
1339 if (command_line.symbolic == symbolic)
1340 command_line.symbolic = symbolic_unset;
55255dae
L		 1341 break;
1342 case OPTION_DYNAMIC_LIST:
1343 /* This option indicates a small script that only specifies
1344 a dynamic list. Read it, but don't assume that we've
1345 seen a linker script. */
1346 {
1347 FILE *hold_script_handle;
1348
1349 hold_script_handle = saved_script_handle;
1350 ldfile_open_command_file (optarg);
1351 saved_script_handle = hold_script_handle;
1352 parser_input = input_dynamic_list;
1353 yyparse ();
1354 }
d8cf8b51
L		 1355 if (command_line.dynamic_list != dynamic_list_data)
1356 command_line.dynamic_list = dynamic_list;
1357 if (command_line.symbolic == symbolic)
1358 command_line.symbolic = symbolic_unset;
55255dae 1359 break;
252b5132 1360 case OPTION_WARN_COMMON:
b34976b6 1361 config.warn_common = TRUE;
252b5132
RH		 1362 break;
1363 case OPTION_WARN_CONSTRUCTORS:
b34976b6 1364 config.warn_constructors = TRUE;
252b5132 1365 break;
7ce691ae 1366 case OPTION_WARN_FATAL:
b34976b6 1367 config.fatal_warnings = TRUE;
7ce691ae 1368 break;
0fe58ccd
NC		 1369 case OPTION_NO_WARN_FATAL:
1370 config.fatal_warnings = FALSE;
1371 break;
252b5132 1372 case OPTION_WARN_MULTIPLE_GP:
b34976b6 1373 config.warn_multiple_gp = TRUE;
252b5132
RH		 1374 break;
1375 case OPTION_WARN_ONCE:
b34976b6 1376 config.warn_once = TRUE;
252b5132 1377 break;
3ea60775
NC		 1378 case OPTION_WARN_ORPHAN:
1379 config.warn_orphan = TRUE;
1380 break;
1381 case OPTION_NO_WARN_ORPHAN:
1382 config.warn_orphan = FALSE;
1383 break;
252b5132 1384 case OPTION_WARN_SECTION_ALIGN:
b34976b6 1385 config.warn_section_align = TRUE;
252b5132 1386 break;
8fdd7217
NC		 1387 case OPTION_WARN_SHARED_TEXTREL:
1388 link_info.warn_shared_textrel = TRUE;
1389 break;
a0c402a5
L		 1390 case OPTION_WARN_ALTERNATE_EM:
1391 link_info.warn_alternate_em = TRUE;
1392 break;
252b5132 1393 case OPTION_WHOLE_ARCHIVE:
66be1055 1394 input_flags.whole_archive = TRUE;
252b5132 1395 break;
ddbb8a31 1396 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC:
66be1055 1397 input_flags.add_DT_NEEDED_for_dynamic = TRUE;
e56f61be 1398 break;
ddbb8a31 1399 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC:
66be1055 1400 input_flags.add_DT_NEEDED_for_dynamic = FALSE;
e56f61be 1401 break;
ddbb8a31 1402 case OPTION_ADD_DT_NEEDED_FOR_REGULAR:
66be1055 1403 input_flags.add_DT_NEEDED_for_regular = TRUE;
4a43e768 1404 break;
ddbb8a31 1405 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR:
66be1055 1406 input_flags.add_DT_NEEDED_for_regular = FALSE;
4a43e768 1407 break;
252b5132
RH		 1408 case OPTION_WRAP:
1409 add_wrap (optarg);
1410 break;
0e86e20e
AM		 1411 case OPTION_IGNORE_UNRESOLVED_SYMBOL:
1412 add_ignoresym (&link_info, optarg);
1413 break;
f5fa8ca2
JJ		 1414 case OPTION_DISCARD_NONE:
1415 link_info.discard = discard_none;
1416 break;
252b5132
RH		 1417 case 'X':
1418 link_info.discard = discard_l;
1419 break;
1420 case 'x':
1421 link_info.discard = discard_all;
1422 break;
1423 case 'Y':
0112cd26 1424 if (CONST_STRNEQ (optarg, "P,"))
252b5132 1425 optarg += 2;
5ed6aba4
NC		 1426 if (default_dirlist != NULL)
1427 free (default_dirlist);
252b5132
RH		 1428 default_dirlist = xstrdup (optarg);
1429 break;
1430 case 'y':
1431 add_ysym (optarg);
1432 break;
db6751f2
JJ		 1433 case OPTION_SPARE_DYNAMIC_TAGS:
1434 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1435 break;
252b5132 1436 case OPTION_SPLIT_BY_RELOC:
a854a4a7
AM		 1437 if (optarg != NULL)
1438 config.split_by_reloc = strtoul (optarg, NULL, 0);
1439 else
1440 config.split_by_reloc = 32768;
5cc18311 1441 break;
252b5132 1442 case OPTION_SPLIT_BY_FILE:
a854a4a7
AM		 1443 if (optarg != NULL)
1444 config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1445 else
1446 config.split_by_file = 1;
5cc18311 1447 break;
252b5132 1448 case OPTION_CHECK_SECTIONS:
02b0b1aa 1449 command_line.check_section_addresses = 1;
252b5132
RH		 1450 break;
1451 case OPTION_NO_CHECK_SECTIONS:
02b0b1aa 1452 command_line.check_section_addresses = 0;
252b5132 1453 break;
312b768e
NC		 1454 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1455 command_line.accept_unknown_input_arch = TRUE;
1456 break;
1457 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1458 command_line.accept_unknown_input_arch = FALSE;
1459 break;
252b5132 1460 case '(':
252b5132 1461 lang_enter_group ();
20f3d0d6 1462 ingroup++;
252b5132
RH		 1463 break;
1464 case ')':
1465 if (! ingroup)
210a7bd1
NC		 1466 einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1467
252b5132 1468 lang_leave_group ();
20f3d0d6 1469 ingroup--;
252b5132 1470 break;
3dbf70a2
MM		 1471
1472 case OPTION_INIT:
1473 link_info.init_function = optarg;
1474 break;
5cc18311 1475
3dbf70a2
MM		 1476 case OPTION_FINI:
1477 link_info.fini_function = optarg;
1478 break;
2d643429 1479
35835446 1480 case OPTION_REDUCE_MEMORY_OVERHEADS:
c0f00686 1481 link_info.reduce_memory_overheads = TRUE;
2d643429
NC		 1482 if (config.hash_table_size == 0)
1483 config.hash_table_size = 1021;
35835446 1484 break;
2d643429
NC		 1485
1486 case OPTION_HASH_SIZE:
1487 {
1488 bfd_size_type new_size;
1489
1490 new_size = strtoul (optarg, NULL, 0);
1491 if (new_size)
1492 config.hash_table_size = new_size;
1493 else
1494 einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1495 }
1496 break;
26278bb8
UD		 1497
1498 case OPTION_PUSH_STATE:
1499 input_flags.pushed = xmemdup (&input_flags,
1500 sizeof (input_flags),
1501 sizeof (input_flags));
1502 break;
1503
1504 case OPTION_POP_STATE:
1505 if (input_flags.pushed == NULL)
1506 einfo (_("%P%F: no state pushed before popping\n"));
1507 else
1508 {
1509 struct lang_input_statement_flags *oldp = input_flags.pushed;
1510 memcpy (&input_flags, oldp, sizeof (input_flags));
1511 free (oldp);
1512 }
1513 break;
3604cb1f
TG		 1514
1515 case OPTION_PRINT_MEMORY_USAGE:
1516 command_line.print_memory_usage = TRUE;
1517 break;
252b5132
RH		 1518 }
1519 }
1520
b0054819
UD		 1521 if (command_line.soname && command_line.soname[0] == '\0')
1522 {
1523 einfo (_("%P: SONAME must not be empty string; ignored\n"));
1524 command_line.soname = NULL;
1525 }
1526
20f3d0d6
AM		 1527 while (ingroup)
1528 {
1529 lang_leave_group ();
1530 ingroup--;
1531 }
252b5132
RH		 1532
1533 if (default_dirlist != NULL)
5ed6aba4
NC		 1534 {
1535 set_default_dirlist (default_dirlist);
1536 free (default_dirlist);
1537 }
560e09e9
NC		 1538
1539 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1540 /* FIXME: Should we allow emulations a chance to set this ? */
1541 link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
6feb9908 1542
560e09e9
NC		 1543 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1544 /* FIXME: Should we allow emulations a chance to set this ? */
1545 link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
5d3236ee 1546
0e1862bb
L		 1547 if (bfd_link_relocatable (&link_info)
1548 && command_line.check_section_addresses < 0)
1549 command_line.check_section_addresses = 0;
9bbc1a67
AM		 1550
1551 /* We may have -Bsymbolic, -Bsymbolic-functions, --dynamic-list-data,
1552 --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo and
1553 --dynamic-list FILE. -Bsymbolic and -Bsymbolic-functions are
1554 for shared libraries. -Bsymbolic overrides all others and vice
1555 versa. */
1556 switch (command_line.symbolic)
1557 {
1558 case symbolic_unset:
1559 break;
1560 case symbolic:
1561 /* -Bsymbolic is for shared library only. */
0e1862bb 1562 if (bfd_link_dll (&link_info))
9bbc1a67
AM		 1563 {
1564 link_info.symbolic = TRUE;
1565 /* Should we free the unused memory? */
1566 link_info.dynamic_list = NULL;
1567 command_line.dynamic_list = dynamic_list_unset;
1568 }
1569 break;
1570 case symbolic_functions:
1571 /* -Bsymbolic-functions is for shared library only. */
0e1862bb 1572 if (bfd_link_dll (&link_info))
9bbc1a67
AM		 1573 command_line.dynamic_list = dynamic_list_data;
1574 break;
1575 }
1576
1577 switch (command_line.dynamic_list)
1578 {
1579 case dynamic_list_unset:
1580 break;
1581 case dynamic_list_data:
1582 link_info.dynamic_data = TRUE;
1583 case dynamic_list:
1584 link_info.dynamic = TRUE;
1585 break;
1586 }
1587
0e1862bb 1588 if (!bfd_link_dll (&link_info))
9bbc1a67
AM		 1589 {
1590 if (command_line.filter_shlib)
1591 einfo (_("%P%F: -F may not be used without -shared\n"));
1592 if (command_line.auxiliary_filters)
1593 einfo (_("%P%F: -f may not be used without -shared\n"));
1594 }
1595
9bbc1a67
AM		 1596 /* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
1597 don't see how else this can be handled, since in this case we
1598 must preserve all externally visible symbols. */
0e1862bb 1599 if (bfd_link_relocatable (&link_info) && link_info.strip == strip_all)
9bbc1a67
AM		 1600 {
1601 link_info.strip = strip_debugger;
1602 if (link_info.discard == discard_sec_merge)
1603 link_info.discard = discard_all;
1604 }
252b5132
RH		 1605}
1606
1607/* Add the (colon-separated) elements of DIRLIST_PTR to the
1608 library search path. */
1609
1610static void
1579bae1 1611set_default_dirlist (char *dirlist_ptr)
252b5132
RH		 1612{
1613 char *p;
1614
1615 while (1)
1616 {
1617 p = strchr (dirlist_ptr, PATH_SEPARATOR);
1618 if (p != NULL)
1619 *p = '\0';
1620 if (*dirlist_ptr != '\0')
b34976b6 1621 ldfile_add_library_path (dirlist_ptr, TRUE);
252b5132
RH		 1622 if (p == NULL)
1623 break;
1624 dirlist_ptr = p + 1;
1625 }
1626}
1627
1628static void
1579bae1 1629set_section_start (char *sect, char *valstr)
252b5132 1630{
93697284
AM		 1631 const char *end;
1632 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
252b5132
RH		 1633 if (*end)
1634 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
ba916c8a 1635 lang_section_start (sect, exp_intop (val), NULL);
252b5132 1636}
ba916c8a
MM		 1637
1638static void
1639set_segment_start (const char *section, char *valstr)
1640{
1641 const char *name;
1642 const char *end;
1643 segment_type *seg;
1644
1645 bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1646 if (*end)
1647 einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1648 /* If we already have an entry for this segment, update the existing
1649 value. */
1650 name = section + 1;
1651 for (seg = segments; seg; seg = seg->next)
1652 if (strcmp (seg->name, name) == 0)
1653 {
1654 seg->value = val;
1655 return;
1656 }
1657 /* There was no existing value so we must create a new segment
1658 entry. */
1e9cc1c2 1659 seg = (segment_type *) stat_alloc (sizeof (*seg));
ba916c8a
MM		 1660 seg->name = name;
1661 seg->value = val;
1662 seg->used = FALSE;
1663 /* Add it to the linked list of segments. */
1664 seg->next = segments;
1665 segments = seg;
1666 /* Historically, -Ttext and friends set the base address of a
1667 particular section. For backwards compatibility, we still do
1668 that. If a SEGMENT_START directive is seen, the section address
1669 assignment will be disabled. */
1670 lang_section_start (section, exp_intop (val), seg);
1671}
1672
c58212ea
L		 1673static void
1674elf_shlib_list_options (FILE *file)
1675{
1676 fprintf (file, _("\
1677 --audit=AUDITLIB Specify a library to use for auditing\n"));
1678 fprintf (file, _("\
1679 -Bgroup Selects group name lookup rules for DSO\n"));
1680 fprintf (file, _("\
1681 --disable-new-dtags Disable new dynamic tags\n"));
1682 fprintf (file, _("\
1683 --enable-new-dtags Enable new dynamic tags\n"));
1684 fprintf (file, _("\
1685 --eh-frame-hdr Create .eh_frame_hdr section\n"));
1686 fprintf (file, _("\
1687 --exclude-libs=LIBS Make all symbols in LIBS hidden\n"));
1688 fprintf (file, _("\
1689 --hash-style=STYLE Set hash style to sysv, gnu or both\n"));
1690 fprintf (file, _("\
1691 -P AUDITLIB, --depaudit=AUDITLIB\n" "\
1692 Specify a library to use for auditing dependencies\n"));
1693 fprintf (file, _("\
1694 -z combreloc Merge dynamic relocs into one section and sort\n"));
1695 fprintf (file, _("\
1696 -z nocombreloc Don't merge dynamic relocs into one section\n"));
1697 fprintf (file, _("\
1698 -z global Make symbols in DSO available for subsequently\n\
1699 loaded objects\n"));
1700 fprintf (file, _("\
1701 -z initfirst Mark DSO to be initialized first at runtime\n"));
1702 fprintf (file, _("\
1703 -z interpose Mark object to interpose all DSOs but executable\n"));
1704 fprintf (file, _("\
1705 -z lazy Mark object lazy runtime binding (default)\n"));
1706 fprintf (file, _("\
1707 -z loadfltr Mark object requiring immediate process\n"));
1708 fprintf (file, _("\
1709 -z nocopyreloc Don't create copy relocs\n"));
1710 fprintf (file, _("\
1711 -z nodefaultlib Mark object not to use default search paths\n"));
1712 fprintf (file, _("\
1713 -z nodelete Mark DSO non-deletable at runtime\n"));
1714 fprintf (file, _("\
1715 -z nodlopen Mark DSO not available to dlopen\n"));
1716 fprintf (file, _("\
1717 -z nodump Mark DSO not available to dldump\n"));
1718 fprintf (file, _("\
1719 -z now Mark object non-lazy runtime binding\n"));
1720 fprintf (file, _("\
1721 -z origin Mark object requiring immediate $ORIGIN\n\
1722 processing at runtime\n"));
1723 fprintf (file, _("\
1724 -z relro Create RELRO program header\n"));
1725 fprintf (file, _("\
1726 -z norelro Don't create RELRO program header\n"));
1727 fprintf (file, _("\
1728 -z stacksize=SIZE Set size of stack segment\n"));
1729 fprintf (file, _("\
1730 -z text Treat DT_TEXTREL in shared object as error\n"));
1731 fprintf (file, _("\
1732 -z notext Don't treat DT_TEXTREL in shared object as error\n"));
1733 fprintf (file, _("\
1734 -z textoff Don't treat DT_TEXTREL in shared object as error\n"));
1735}
1736
1737static void
1738elf_static_list_options (FILE *file)
1739{
1740 fprintf (file, _("\
1741 --build-id[=STYLE] Generate build ID note\n"));
1742 fprintf (file, _("\
0ce398f1
L		 1743 --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi]\n\
1744 Compress DWARF debug sections using zlib\n"));
1745 fprintf (file, _("\
c58212ea
L		 1746 -z common-page-size=SIZE Set common page size to SIZE\n"));
1747 fprintf (file, _("\
1748 -z max-page-size=SIZE Set maximum page size to SIZE\n"));
1749 fprintf (file, _("\
1750 -z defs Report unresolved symbols in object files.\n"));
1751 fprintf (file, _("\
1752 -z muldefs Allow multiple definitions\n"));
1753 fprintf (file, _("\
1754 -z execstack Mark executable as requiring executable stack\n"));
1755 fprintf (file, _("\
1756 -z noexecstack Mark executable as not requiring executable stack\n"));
1757}
1758
1759static void
1760elf_plt_unwind_list_options (FILE *file)
1761{
1762 fprintf (file, _("\
1763 --ld-generated-unwind-info Generate exception handling info for PLT\n\
1764 --no-ld-generated-unwind-info\n\
1765 Don't generate exception handling info for PLT\n"));
1766}
1767
1768static void
1769ld_list_options (FILE *file, bfd_boolean elf, bfd_boolean shlib,
1770 bfd_boolean plt_unwind)
1771{
1772 if (!elf)
1773 return;
1774 printf (_("ELF emulations:\n"));
1775 if (plt_unwind)
1776 elf_plt_unwind_list_options (file);
1777 elf_static_list_options (file);
1778 if (shlib)
1779 elf_shlib_list_options (file);
1780}
1781
252b5132
RH		 1782\f
1783/* Print help messages for the options. */
1784
1785static void
1579bae1 1786help (void)
252b5132 1787{
e4897a32 1788 unsigned i;
252b5132 1789 const char **targets, **pp;
a55ff675 1790 int len;
252b5132
RH		 1791
1792 printf (_("Usage: %s [options] file...\n"), program_name);
1793
1794 printf (_("Options:\n"));
1795 for (i = 0; i < OPTION_COUNT; i++)
1796 {
1797 if (ld_options[i].doc != NULL)
1798 {
b34976b6 1799 bfd_boolean comma;
e4897a32 1800 unsigned j;
252b5132
RH		 1801
1802 printf (" ");
1803
b34976b6 1804 comma = FALSE;
252b5132
RH		 1805 len = 2;
1806
1807 j = i;
1808 do
1809 {
1810 if (ld_options[j].shortopt != '\0'
1811 && ld_options[j].control != NO_HELP)
1812 {
1813 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1814 len += (comma ? 2 : 0) + 2;
1815 if (ld_options[j].arg != NULL)
1816 {
1817 if (ld_options[j].opt.has_arg != optional_argument)
1818 {
1819 printf (" ");
1820 ++len;
1821 }
1822 printf ("%s", _(ld_options[j].arg));
1823 len += strlen (_(ld_options[j].arg));
1824 }
b34976b6 1825 comma = TRUE;
252b5132
RH		 1826 }
1827 ++j;
1828 }
1829 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1830
1831 j = i;
1832 do
1833 {
1834 if (ld_options[j].opt.name != NULL
1835 && ld_options[j].control != NO_HELP)
1836 {
e4897a32
NC		 1837 int two_dashes =
1838 (ld_options[j].control == TWO_DASHES
1839 || ld_options[j].control == EXACTLY_TWO_DASHES);
b7a26f91 1840
252b5132
RH		 1841 printf ("%s-%s%s",
1842 comma ? ", " : "",
e4897a32 1843 two_dashes ? "-" : "",
252b5132
RH		 1844 ld_options[j].opt.name);
1845 len += ((comma ? 2 : 0)
1846 + 1
e4897a32 1847 + (two_dashes ? 1 : 0)
252b5132
RH		 1848 + strlen (ld_options[j].opt.name));
1849 if (ld_options[j].arg != NULL)
1850 {
1851 printf (" %s", _(ld_options[j].arg));
1852 len += 1 + strlen (_(ld_options[j].arg));
1853 }
b34976b6 1854 comma = TRUE;
252b5132
RH		 1855 }
1856 ++j;
1857 }
1858 while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1859
1860 if (len >= 30)
1861 {
1862 printf ("\n");
1863 len = 0;
1864 }
1865
1866 for (; len < 30; len++)
1867 putchar (' ');
1868
1869 printf ("%s\n", _(ld_options[i].doc));
1870 }
1871 }
a55ff675
MM		 1872 printf (_(" @FILE"));
1873 for (len = strlen (" @FILE"); len < 30; len++)
1874 putchar (' ');
1875 printf (_("Read options from FILE\n"));
252b5132 1876
f75692fe
NC		 1877 /* Note: Various tools (such as libtool) depend upon the
1878 format of the listings below - do not change them. */
252b5132 1879 /* xgettext:c-format */
f75692fe 1880 printf (_("%s: supported targets:"), program_name);
252b5132
RH		 1881 targets = bfd_target_list ();
1882 for (pp = targets; *pp != NULL; pp++)
1883 printf (" %s", *pp);
1884 free (targets);
1885 printf ("\n");
1886
1887 /* xgettext:c-format */
f75692fe 1888 printf (_("%s: supported emulations: "), program_name);
252b5132
RH		 1889 ldemul_list_emulations (stdout);
1890 printf ("\n");
1891
1892 /* xgettext:c-format */
1893 printf (_("%s: emulation specific options:\n"), program_name);
c58212ea
L		 1894 ld_list_options (stdout, ELF_LIST_OPTIONS, ELF_SHLIB_LIST_OPTIONS,
1895 ELF_PLT_UNWIND_LIST_OPTIONS);
252b5132
RH		 1896 ldemul_list_emulation_options (stdout);
1897 printf ("\n");
c20f4f8c 1898
92f01d61
JM		 1899 if (REPORT_BUGS_TO[0])
1900 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
252b5132 1901}
GDB Binutils - Deliverables
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