1 /* Parse options for the GNU linker. 2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 4 Free Software Foundation, Inc. 5 6 This file is part of the GNU Binutils. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23 #include "sysdep.h" 24 #include "bfd.h" 25 #include "bfdver.h" 26 #include "libiberty.h" 27 #include <stdio.h> 28 #include <string.h> 29 #include "safe-ctype.h" 30 #include "getopt.h" 31 #include "bfdlink.h" 32 #include "ld.h" 33 #include "ldmain.h" 34 #include "ldmisc.h" 35 #include "ldexp.h" 36 #include "ldlang.h" 37 #include <ldgram.h> 38 #include "ldlex.h" 39 #include "ldfile.h" 40 #include "ldver.h" 41 #include "ldemul.h" 42 #include "demangle.h" 43 #ifdef ENABLE_PLUGINS 44 #include "plugin.h" 45 #endif /* ENABLE_PLUGINS */ 46 47 #ifndef PATH_SEPARATOR 48 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__)) 49 #define PATH_SEPARATOR ';' 50 #else 51 #define PATH_SEPARATOR ':' 52 #endif 53 #endif 54 55 /* Somewhere above, sys/stat.h got included . . . . */ 56 #if !defined(S_ISDIR) && defined(S_IFDIR) 57 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) 58 #endif 59 60 static void set_default_dirlist (char *); 61 static void set_section_start (char *, char *); 62 static void set_segment_start (const char *, char *); 63 static void help (void); 64 65 /* Non-zero if we are processing a --defsym from the command line. */ 66 int parsing_defsym = 0; 67 68 /* Codes used for the long options with no short synonyms. 150 isn't 69 special; it's just an arbitrary non-ASCII char value. */ 70 enum option_values 71 { 72 OPTION_ASSERT = 150, 73 OPTION_CALL_SHARED, 74 OPTION_CREF, 75 OPTION_DEFSYM, 76 OPTION_DEMANGLE, 77 OPTION_DYNAMIC_LINKER, 78 OPTION_SYSROOT, 79 OPTION_EB, 80 OPTION_EL, 81 OPTION_EMBEDDED_RELOCS, 82 OPTION_EXPORT_DYNAMIC, 83 OPTION_NO_EXPORT_DYNAMIC, 84 OPTION_HELP, 85 OPTION_IGNORE, 86 OPTION_MAP, 87 OPTION_NO_DEMANGLE, 88 OPTION_NO_KEEP_MEMORY, 89 OPTION_NO_WARN_MISMATCH, 90 OPTION_NO_WARN_SEARCH_MISMATCH, 91 OPTION_NOINHIBIT_EXEC, 92 OPTION_NON_SHARED, 93 OPTION_NO_WHOLE_ARCHIVE, 94 OPTION_OFORMAT, 95 OPTION_RELAX, 96 OPTION_NO_RELAX, 97 OPTION_RETAIN_SYMBOLS_FILE, 98 OPTION_RPATH, 99 OPTION_RPATH_LINK, 100 OPTION_SHARED, 101 OPTION_SONAME, 102 OPTION_SORT_COMMON, 103 OPTION_SORT_SECTION, 104 OPTION_STATS, 105 OPTION_SYMBOLIC, 106 OPTION_SYMBOLIC_FUNCTIONS, 107 OPTION_TASK_LINK, 108 OPTION_TBSS, 109 OPTION_TDATA, 110 OPTION_TTEXT, 111 OPTION_TTEXT_SEGMENT, 112 OPTION_TRADITIONAL_FORMAT, 113 OPTION_UR, 114 OPTION_VERBOSE, 115 OPTION_VERSION, 116 OPTION_VERSION_SCRIPT, 117 OPTION_VERSION_EXPORTS_SECTION, 118 OPTION_DYNAMIC_LIST, 119 OPTION_DYNAMIC_LIST_CPP_NEW, 120 OPTION_DYNAMIC_LIST_CPP_TYPEINFO, 121 OPTION_DYNAMIC_LIST_DATA, 122 OPTION_WARN_COMMON, 123 OPTION_WARN_CONSTRUCTORS, 124 OPTION_WARN_FATAL, 125 OPTION_NO_WARN_FATAL, 126 OPTION_WARN_MULTIPLE_GP, 127 OPTION_WARN_ONCE, 128 OPTION_WARN_SECTION_ALIGN, 129 OPTION_SPLIT_BY_RELOC, 130 OPTION_SPLIT_BY_FILE , 131 OPTION_WHOLE_ARCHIVE, 132 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC, 133 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC, 134 OPTION_ADD_DT_NEEDED_FOR_REGULAR, 135 OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR, 136 OPTION_WRAP, 137 OPTION_FORCE_EXE_SUFFIX, 138 OPTION_GC_SECTIONS, 139 OPTION_NO_GC_SECTIONS, 140 OPTION_PRINT_GC_SECTIONS, 141 OPTION_NO_PRINT_GC_SECTIONS, 142 OPTION_HASH_SIZE, 143 OPTION_CHECK_SECTIONS, 144 OPTION_NO_CHECK_SECTIONS, 145 OPTION_NO_UNDEFINED, 146 OPTION_INIT, 147 OPTION_FINI, 148 OPTION_SECTION_START, 149 OPTION_UNIQUE, 150 OPTION_TARGET_HELP, 151 OPTION_ALLOW_SHLIB_UNDEFINED, 152 OPTION_NO_ALLOW_SHLIB_UNDEFINED, 153 OPTION_ALLOW_MULTIPLE_DEFINITION, 154 OPTION_NO_UNDEFINED_VERSION, 155 OPTION_DEFAULT_SYMVER, 156 OPTION_DEFAULT_IMPORTED_SYMVER, 157 OPTION_DISCARD_NONE, 158 OPTION_SPARE_DYNAMIC_TAGS, 159 OPTION_NO_DEFINE_COMMON, 160 OPTION_NOSTDLIB, 161 OPTION_NO_OMAGIC, 162 OPTION_STRIP_DISCARDED, 163 OPTION_NO_STRIP_DISCARDED, 164 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH, 165 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH, 166 OPTION_PIE, 167 OPTION_UNRESOLVED_SYMBOLS, 168 OPTION_WARN_UNRESOLVED_SYMBOLS, 169 OPTION_ERROR_UNRESOLVED_SYMBOLS, 170 OPTION_WARN_SHARED_TEXTREL, 171 OPTION_WARN_ALTERNATE_EM, 172 OPTION_REDUCE_MEMORY_OVERHEADS, 173 #ifdef ENABLE_PLUGINS 174 OPTION_PLUGIN, 175 OPTION_PLUGIN_OPT, 176 #endif /* ENABLE_PLUGINS */ 177 OPTION_DEFAULT_SCRIPT, 178 OPTION_IGNORE_UNRESOLVED_SYMBOL 179 }; 180 181 /* The long options. This structure is used for both the option 182 parsing and the help text. */ 183 184 enum control_enum { 185 /* Use one dash before long option name. */ 186 ONE_DASH, 187 /* Use two dashes before long option name. */ 188 TWO_DASHES, 189 /* Only accept two dashes before the long option name. 190 This is an overloading of the use of this enum, since originally it 191 was only intended to tell the --help display function how to display 192 the long option name. This feature was added in order to resolve 193 the confusion about the -omagic command line switch. Is it setting 194 the output file name to "magic" or is it setting the NMAGIC flag on 195 the output ? It has been decided that it is setting the output file 196 name, and that if you want to set the NMAGIC flag you should use -N 197 or --omagic. */ 198 EXACTLY_TWO_DASHES, 199 /* Don't mention this option in --help output. */ 200 NO_HELP 201 }; 202 203 struct ld_option 204 { 205 /* The long option information. */ 206 struct option opt; 207 /* The short option with the same meaning ('\0' if none). */ 208 char shortopt; 209 /* The name of the argument (NULL if none). */ 210 const char *arg; 211 /* The documentation string. If this is NULL, this is a synonym for 212 the previous option. */ 213 const char *doc; 214 enum control_enum control; 215 }; 216 217 static const struct ld_option ld_options[] = 218 { 219 { {NULL, required_argument, NULL, '\0'}, 220 'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"), 221 ONE_DASH }, 222 { {"architecture", required_argument, NULL, 'A'}, 223 'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES }, 224 { {"format", required_argument, NULL, 'b'}, 225 'b', N_("TARGET"), N_("Specify target for following input files"), 226 TWO_DASHES }, 227 { {"mri-script", required_argument, NULL, 'c'}, 228 'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES }, 229 { {"dc", no_argument, NULL, 'd'}, 230 'd', NULL, N_("Force common symbols to be defined"), ONE_DASH }, 231 { {"dp", no_argument, NULL, 'd'}, 232 '\0', NULL, NULL, ONE_DASH }, 233 { {"entry", required_argument, NULL, 'e'}, 234 'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES }, 235 { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC}, 236 'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES }, 237 { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC}, 238 '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES }, 239 { {"EB", no_argument, NULL, OPTION_EB}, 240 '\0', NULL, N_("Link big-endian objects"), ONE_DASH }, 241 { {"EL", no_argument, NULL, OPTION_EL}, 242 '\0', NULL, N_("Link little-endian objects"), ONE_DASH }, 243 { {"auxiliary", required_argument, NULL, 'f'}, 244 'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"), 245 TWO_DASHES }, 246 { {"filter", required_argument, NULL, 'F'}, 247 'F', N_("SHLIB"), N_("Filter for shared object symbol table"), 248 TWO_DASHES }, 249 { {NULL, no_argument, NULL, '\0'}, 250 'g', NULL, N_("Ignored"), ONE_DASH }, 251 { {"gpsize", required_argument, NULL, 'G'}, 252 'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"), 253 TWO_DASHES }, 254 { {"soname", required_argument, NULL, OPTION_SONAME}, 255 'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH }, 256 { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER}, 257 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"), 258 TWO_DASHES }, 259 { {"library", required_argument, NULL, 'l'}, 260 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES }, 261 { {"library-path", required_argument, NULL, 'L'}, 262 'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), 263 TWO_DASHES }, 264 { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT}, 265 '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES }, 266 { {NULL, required_argument, NULL, '\0'}, 267 'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH }, 268 { {"print-map", no_argument, NULL, 'M'}, 269 'M', NULL, N_("Print map file on standard output"), TWO_DASHES }, 270 { {"nmagic", no_argument, NULL, 'n'}, 271 'n', NULL, N_("Do not page align data"), TWO_DASHES }, 272 { {"omagic", no_argument, NULL, 'N'}, 273 'N', NULL, N_("Do not page align data, do not make text readonly"), 274 EXACTLY_TWO_DASHES }, 275 { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC}, 276 '\0', NULL, N_("Page align data, make text readonly"), 277 EXACTLY_TWO_DASHES }, 278 { {"output", required_argument, NULL, 'o'}, 279 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES }, 280 { {NULL, required_argument, NULL, '\0'}, 281 'O', NULL, N_("Optimize output file"), ONE_DASH }, 282 #ifdef ENABLE_PLUGINS 283 { {"plugin", required_argument, NULL, OPTION_PLUGIN}, 284 '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH }, 285 { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT}, 286 '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH }, 287 { {"flto", optional_argument, NULL, OPTION_IGNORE}, 288 '\0', NULL, N_("Ignored for GCC LTO option compatibility"), 289 ONE_DASH }, 290 { {"flto-partition=", required_argument, NULL, OPTION_IGNORE}, 291 '\0', NULL, N_("Ignored for GCC LTO option compatibility"), 292 ONE_DASH }, 293 #endif /* ENABLE_PLUGINS */ 294 { {"Qy", no_argument, NULL, OPTION_IGNORE}, 295 '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH }, 296 { {"emit-relocs", no_argument, NULL, 'q'}, 297 'q', NULL, "Generate relocations in final output", TWO_DASHES }, 298 { {"relocatable", no_argument, NULL, 'r'}, 299 'r', NULL, N_("Generate relocatable output"), TWO_DASHES }, 300 { {NULL, no_argument, NULL, '\0'}, 301 'i', NULL, NULL, ONE_DASH }, 302 { {"just-symbols", required_argument, NULL, 'R'}, 303 'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"), 304 TWO_DASHES }, 305 { {"strip-all", no_argument, NULL, 's'}, 306 's', NULL, N_("Strip all symbols"), TWO_DASHES }, 307 { {"strip-debug", no_argument, NULL, 'S'}, 308 'S', NULL, N_("Strip debugging symbols"), TWO_DASHES }, 309 { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED}, 310 '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES }, 311 { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED}, 312 '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES }, 313 { {"trace", no_argument, NULL, 't'}, 314 't', NULL, N_("Trace file opens"), TWO_DASHES }, 315 { {"script", required_argument, NULL, 'T'}, 316 'T', N_("FILE"), N_("Read linker script"), TWO_DASHES }, 317 { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT}, 318 '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES }, 319 { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT}, 320 '\0', NULL, NULL, ONE_DASH }, 321 { {"undefined", required_argument, NULL, 'u'}, 322 'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), 323 TWO_DASHES }, 324 { {"unique", optional_argument, NULL, OPTION_UNIQUE}, 325 '\0', N_("[=SECTION]"), 326 N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES }, 327 { {"Ur", no_argument, NULL, OPTION_UR}, 328 '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH }, 329 { {"version", no_argument, NULL, OPTION_VERSION}, 330 'v', NULL, N_("Print version information"), TWO_DASHES }, 331 { {NULL, no_argument, NULL, '\0'}, 332 'V', NULL, N_("Print version and emulation information"), ONE_DASH }, 333 { {"discard-all", no_argument, NULL, 'x'}, 334 'x', NULL, N_("Discard all local symbols"), TWO_DASHES }, 335 { {"discard-locals", no_argument, NULL, 'X'}, 336 'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES }, 337 { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE}, 338 '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES }, 339 { {"trace-symbol", required_argument, NULL, 'y'}, 340 'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES }, 341 { {NULL, required_argument, NULL, '\0'}, 342 'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), 343 ONE_DASH }, 344 { {"start-group", no_argument, NULL, '('}, 345 '(', NULL, N_("Start a group"), TWO_DASHES }, 346 { {"end-group", no_argument, NULL, ')'}, 347 ')', NULL, N_("End a group"), TWO_DASHES }, 348 { {"accept-unknown-input-arch", no_argument, NULL, 349 OPTION_ACCEPT_UNKNOWN_INPUT_ARCH}, 350 '\0', NULL, 351 N_("Accept input files whose architecture cannot be determined"), 352 TWO_DASHES }, 353 { {"no-accept-unknown-input-arch", no_argument, NULL, 354 OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH}, 355 '\0', NULL, N_("Reject input files whose architecture is unknown"), 356 TWO_DASHES }, 357 358 /* The next two options are deprecated because of their similarity to 359 --as-needed and --no-as-needed. They have been replaced by 360 --resolve-implicit-dynamic-symbols and 361 --no-resolve-implicit-dynamic-symbols. */ 362 { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC}, 363 '\0', NULL, NULL, NO_HELP }, 364 { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC}, 365 '\0', NULL, NULL, NO_HELP }, 366 367 { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR}, 368 '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"), 369 TWO_DASHES }, 370 { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR}, 371 '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n" 372 " the command line"), 373 TWO_DASHES }, 374 { {"assert", required_argument, NULL, OPTION_ASSERT}, 375 '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH }, 376 { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED}, 377 '\0', NULL, N_("Link against shared libraries"), ONE_DASH }, 378 { {"dy", no_argument, NULL, OPTION_CALL_SHARED}, 379 '\0', NULL, NULL, ONE_DASH }, 380 { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED}, 381 '\0', NULL, NULL, ONE_DASH }, 382 { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED}, 383 '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH }, 384 { {"dn", no_argument, NULL, OPTION_NON_SHARED}, 385 '\0', NULL, NULL, ONE_DASH }, 386 { {"non_shared", no_argument, NULL, OPTION_NON_SHARED}, 387 '\0', NULL, NULL, ONE_DASH }, 388 { {"static", no_argument, NULL, OPTION_NON_SHARED}, 389 '\0', NULL, NULL, ONE_DASH }, 390 { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC}, 391 '\0', NULL, N_("Bind global references locally"), ONE_DASH }, 392 { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS}, 393 '\0', NULL, N_("Bind global function references locally"), ONE_DASH }, 394 { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS}, 395 '\0', NULL, N_("Check section addresses for overlaps (default)"), 396 TWO_DASHES }, 397 { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS}, 398 '\0', NULL, N_("Do not check section addresses for overlaps"), 399 TWO_DASHES }, 400 { {"copy-dt-needed-entries", no_argument, NULL, 401 OPTION_ADD_DT_NEEDED_FOR_DYNAMIC}, 402 '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"), 403 TWO_DASHES }, 404 { {"no-copy-dt-needed-entries", no_argument, NULL, 405 OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC}, 406 '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"), 407 TWO_DASHES }, 408 409 { {"cref", no_argument, NULL, OPTION_CREF}, 410 '\0', NULL, N_("Output cross reference table"), TWO_DASHES }, 411 { {"defsym", required_argument, NULL, OPTION_DEFSYM}, 412 '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES }, 413 { {"demangle", optional_argument, NULL, OPTION_DEMANGLE}, 414 '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"), 415 TWO_DASHES }, 416 { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS}, 417 '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES}, 418 { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}, 419 '\0', NULL, N_("Treat warnings as errors"), 420 TWO_DASHES }, 421 { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL}, 422 '\0', NULL, N_("Do not treat warnings as errors (default)"), 423 TWO_DASHES }, 424 { {"fini", required_argument, NULL, OPTION_FINI}, 425 '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH }, 426 { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX}, 427 '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES}, 428 { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS}, 429 '\0', NULL, N_("Remove unused sections (on some targets)"), 430 TWO_DASHES }, 431 { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS}, 432 '\0', NULL, N_("Don't remove unused sections (default)"), 433 TWO_DASHES }, 434 { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS}, 435 '\0', NULL, N_("List removed unused sections on stderr"), 436 TWO_DASHES }, 437 { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS}, 438 '\0', NULL, N_("Do not list removed unused sections"), 439 TWO_DASHES }, 440 { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE}, 441 '\0', NULL, N_("Set default hash table size close to <NUMBER>"), 442 TWO_DASHES }, 443 { {"help", no_argument, NULL, OPTION_HELP}, 444 '\0', NULL, N_("Print option help"), TWO_DASHES }, 445 { {"init", required_argument, NULL, OPTION_INIT}, 446 '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH }, 447 { {"Map", required_argument, NULL, OPTION_MAP}, 448 '\0', N_("FILE"), N_("Write a map file"), ONE_DASH }, 449 { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON}, 450 '\0', NULL, N_("Do not define Common storage"), TWO_DASHES }, 451 { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE }, 452 '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES }, 453 { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY}, 454 '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES }, 455 { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED}, 456 '\0', NULL, N_("Do not allow unresolved references in object files"), 457 TWO_DASHES }, 458 { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED}, 459 '\0', NULL, N_("Allow unresolved references in shared libaries"), 460 TWO_DASHES }, 461 { {"no-allow-shlib-undefined", no_argument, NULL, 462 OPTION_NO_ALLOW_SHLIB_UNDEFINED}, 463 '\0', NULL, N_("Do not allow unresolved references in shared libs"), 464 TWO_DASHES }, 465 { {"allow-multiple-definition", no_argument, NULL, 466 OPTION_ALLOW_MULTIPLE_DEFINITION}, 467 '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES }, 468 { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION}, 469 '\0', NULL, N_("Disallow undefined version"), TWO_DASHES }, 470 { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER}, 471 '\0', NULL, N_("Create default symbol version"), TWO_DASHES }, 472 { {"default-imported-symver", no_argument, NULL, 473 OPTION_DEFAULT_IMPORTED_SYMVER}, 474 '\0', NULL, N_("Create default symbol version for imported symbols"), 475 TWO_DASHES }, 476 { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH}, 477 '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES}, 478 { {"no-warn-search-mismatch", no_argument, NULL, 479 OPTION_NO_WARN_SEARCH_MISMATCH}, 480 '\0', NULL, N_("Don't warn on finding an incompatible library"), 481 TWO_DASHES}, 482 { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE}, 483 '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES }, 484 { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC}, 485 '\0', NULL, N_("Create an output file even if errors occur"), 486 TWO_DASHES }, 487 { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC}, 488 '\0', NULL, NULL, NO_HELP }, 489 { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB}, 490 '\0', NULL, N_("Only use library directories specified on\n" 491 " the command line"), 492 ONE_DASH }, 493 { {"oformat", required_argument, NULL, OPTION_OFORMAT}, 494 '\0', N_("TARGET"), N_("Specify target of output file"), 495 EXACTLY_TWO_DASHES }, 496 { {"qmagic", no_argument, NULL, OPTION_IGNORE}, 497 '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH }, 498 { {"reduce-memory-overheads", no_argument, NULL, 499 OPTION_REDUCE_MEMORY_OVERHEADS}, 500 '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"), 501 TWO_DASHES }, 502 { {"relax", no_argument, NULL, OPTION_RELAX}, 503 '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES }, 504 { {"no-relax", no_argument, NULL, OPTION_NO_RELAX}, 505 '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES }, 506 { {"retain-symbols-file", required_argument, NULL, 507 OPTION_RETAIN_SYMBOLS_FILE}, 508 '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES }, 509 { {"rpath", required_argument, NULL, OPTION_RPATH}, 510 '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH }, 511 { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK}, 512 '\0', N_("PATH"), N_("Set link time shared library search path"), 513 ONE_DASH }, 514 { {"shared", no_argument, NULL, OPTION_SHARED}, 515 '\0', NULL, N_("Create a shared library"), ONE_DASH }, 516 { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD, NetBSD. */ 517 '\0', NULL, NULL, ONE_DASH }, 518 { {"pie", no_argument, NULL, OPTION_PIE}, 519 '\0', NULL, N_("Create a position independent executable"), ONE_DASH }, 520 { {"pic-executable", no_argument, NULL, OPTION_PIE}, 521 '\0', NULL, NULL, TWO_DASHES }, 522 { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON}, 523 '\0', N_("[=ascending|descending]"), 524 N_("Sort common symbols by alignment [in specified order]"), 525 TWO_DASHES }, 526 { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON}, 527 '\0', NULL, NULL, NO_HELP }, 528 { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION}, 529 '\0', N_("name|alignment"), 530 N_("Sort sections by name or maximum alignment"), TWO_DASHES }, 531 { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS}, 532 '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"), 533 TWO_DASHES }, 534 { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE}, 535 '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"), 536 TWO_DASHES }, 537 { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC}, 538 '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"), 539 TWO_DASHES }, 540 { {"stats", no_argument, NULL, OPTION_STATS}, 541 '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES }, 542 { {"target-help", no_argument, NULL, OPTION_TARGET_HELP}, 543 '\0', NULL, N_("Display target specific options"), TWO_DASHES }, 544 { {"task-link", required_argument, NULL, OPTION_TASK_LINK}, 545 '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES }, 546 { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT}, 547 '\0', NULL, N_("Use same format as native linker"), TWO_DASHES }, 548 { {"section-start", required_argument, NULL, OPTION_SECTION_START}, 549 '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"), 550 TWO_DASHES }, 551 { {"Tbss", required_argument, NULL, OPTION_TBSS}, 552 '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH }, 553 { {"Tdata", required_argument, NULL, OPTION_TDATA}, 554 '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH }, 555 { {"Ttext", required_argument, NULL, OPTION_TTEXT}, 556 '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH }, 557 { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT}, 558 '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH }, 559 { {"unresolved-symbols=<method>", required_argument, NULL, 560 OPTION_UNRESOLVED_SYMBOLS}, 561 '\0', NULL, N_("How to handle unresolved symbols. <method> is:\n" 562 " ignore-all, report-all, ignore-in-object-files,\n" 563 " ignore-in-shared-libs"), 564 TWO_DASHES }, 565 { {"verbose", optional_argument, NULL, OPTION_VERBOSE}, 566 '\0', N_("[=NUMBER]"), 567 N_("Output lots of information during link"), TWO_DASHES }, 568 { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux. */ 569 '\0', NULL, NULL, NO_HELP }, 570 { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT }, 571 '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES }, 572 { {"version-exports-section", required_argument, NULL, 573 OPTION_VERSION_EXPORTS_SECTION }, 574 '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n" 575 " SYMBOL as the version."), 576 TWO_DASHES }, 577 { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA}, 578 '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES }, 579 { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW}, 580 '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES }, 581 { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO}, 582 '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES }, 583 { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST}, 584 '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES }, 585 { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON}, 586 '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES }, 587 { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS}, 588 '\0', NULL, N_("Warn if global constructors/destructors are seen"), 589 TWO_DASHES }, 590 { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP}, 591 '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES }, 592 { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE}, 593 '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES }, 594 { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN}, 595 '\0', NULL, N_("Warn if start of section changes due to alignment"), 596 TWO_DASHES }, 597 { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL}, 598 '\0', NULL, N_("Warn if shared object has DT_TEXTREL"), 599 TWO_DASHES }, 600 { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM}, 601 '\0', NULL, N_("Warn if an object has alternate ELF machine code"), 602 TWO_DASHES }, 603 { {"warn-unresolved-symbols", no_argument, NULL, 604 OPTION_WARN_UNRESOLVED_SYMBOLS}, 605 '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES }, 606 { {"error-unresolved-symbols", no_argument, NULL, 607 OPTION_ERROR_UNRESOLVED_SYMBOLS}, 608 '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES }, 609 { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE}, 610 '\0', NULL, N_("Include all objects from following archives"), 611 TWO_DASHES }, 612 { {"Bforcearchive", no_argument, NULL, OPTION_WHOLE_ARCHIVE}, 613 '\0', NULL, NULL, TWO_DASHES }, /* NetBSD. */ 614 { {"wrap", required_argument, NULL, OPTION_WRAP}, 615 '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES }, 616 { {"ignore-unresolved-symbol", required_argument, NULL, 617 OPTION_IGNORE_UNRESOLVED_SYMBOL}, 618 '\0', N_("SYMBOL"), 619 N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES }, 620 }; 621 622 #define OPTION_COUNT ARRAY_SIZE (ld_options) 623 624 void 625 parse_args (unsigned argc, char **argv) 626 { 627 unsigned i; 628 int is, il, irl; 629 int ingroup = 0; 630 char *default_dirlist = NULL; 631 char *shortopts; 632 struct option *longopts; 633 struct option *really_longopts; 634 int last_optind; 635 enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR; 636 637 shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2); 638 longopts = (struct option *) 639 xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1)); 640 really_longopts = (struct option *) 641 malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1)); 642 643 /* Starting the short option string with '-' is for programs that 644 expect options and other ARGV-elements in any order and that care about 645 the ordering of the two. We describe each non-option ARGV-element 646 as if it were the argument of an option with character code 1. */ 647 shortopts[0] = '-'; 648 is = 1; 649 il = 0; 650 irl = 0; 651 for (i = 0; i < OPTION_COUNT; i++) 652 { 653 if (ld_options[i].shortopt != '\0') 654 { 655 shortopts[is] = ld_options[i].shortopt; 656 ++is; 657 if (ld_options[i].opt.has_arg == required_argument 658 || ld_options[i].opt.has_arg == optional_argument) 659 { 660 shortopts[is] = ':'; 661 ++is; 662 if (ld_options[i].opt.has_arg == optional_argument) 663 { 664 shortopts[is] = ':'; 665 ++is; 666 } 667 } 668 } 669 if (ld_options[i].opt.name != NULL) 670 { 671 if (ld_options[i].control == EXACTLY_TWO_DASHES) 672 { 673 really_longopts[irl] = ld_options[i].opt; 674 ++irl; 675 } 676 else 677 { 678 longopts[il] = ld_options[i].opt; 679 ++il; 680 } 681 } 682 } 683 shortopts[is] = '\0'; 684 longopts[il].name = NULL; 685 really_longopts[irl].name = NULL; 686 687 ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts); 688 689 /* The -G option is ambiguous on different platforms. Sometimes it 690 specifies the largest data size to put into the small data 691 section. Sometimes it is equivalent to --shared. Unfortunately, 692 the first form takes an argument, while the second does not. 693 694 We need to permit the --shared form because on some platforms, 695 such as Solaris, gcc -shared will pass -G to the linker. 696 697 To permit either usage, we look through the argument list. If we 698 find -G not followed by a number, we change it into --shared. 699 This will work for most normal cases. */ 700 for (i = 1; i < argc; i++) 701 if (strcmp (argv[i], "-G") == 0 702 && (i + 1 >= argc 703 || ! ISDIGIT (argv[i + 1][0]))) 704 argv[i] = (char *) "--shared"; 705 706 /* Because we permit long options to start with a single dash, and 707 we have a --library option, and the -l option is conventionally 708 used with an immediately following argument, we can have bad 709 results if somebody tries to use -l with a library whose name 710 happens to start with "ibrary", as in -li. We avoid problems by 711 simply turning -l into --library. This means that users will 712 have to use two dashes in order to use --library, which is OK 713 since that's how it is documented. 714 715 FIXME: It's possible that this problem can arise for other short 716 options as well, although the user does always have the recourse 717 of adding a space between the option and the argument. */ 718 for (i = 1; i < argc; i++) 719 { 720 if (argv[i][0] == '-' 721 && argv[i][1] == 'l' 722 && argv[i][2] != '\0') 723 { 724 char *n; 725 726 n = (char *) xmalloc (strlen (argv[i]) + 20); 727 sprintf (n, "--library=%s", argv[i] + 2); 728 argv[i] = n; 729 } 730 } 731 732 last_optind = -1; 733 while (1) 734 { 735 int longind; 736 int optc; 737 738 /* Using last_optind lets us avoid calling ldemul_parse_args 739 multiple times on a single option, which would lead to 740 confusion in the internal static variables maintained by 741 getopt. This could otherwise happen for an argument like 742 -nx, in which the -n is parsed as a single option, and we 743 loop around to pick up the -x. */ 744 if (optind != last_optind) 745 if (ldemul_parse_args (argc, argv)) 746 continue; 747 748 /* getopt_long_only is like getopt_long, but '-' as well as '--' 749 can indicate a long option. */ 750 opterr = 0; 751 last_optind = optind; 752 optc = getopt_long_only (argc, argv, shortopts, longopts, &longind); 753 if (optc == '?') 754 { 755 optind = last_optind; 756 optc = getopt_long (argc, argv, "-", really_longopts, &longind); 757 } 758 759 if (ldemul_handle_option (optc)) 760 continue; 761 762 if (optc == -1) 763 break; 764 765 switch (optc) 766 { 767 case '?': 768 einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]); 769 /* Fall through. */ 770 771 default: 772 einfo (_("%P%F: use the --help option for usage information\n")); 773 774 case 1: /* File name. */ 775 lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL); 776 break; 777 778 case OPTION_IGNORE: 779 break; 780 case 'a': 781 /* For HP/UX compatibility. Actually -a shared should mean 782 ``use only shared libraries'' but, then, we don't 783 currently support shared libraries on HP/UX anyhow. */ 784 if (strcmp (optarg, "archive") == 0) 785 config.dynamic_link = FALSE; 786 else if (strcmp (optarg, "shared") == 0 787 || strcmp (optarg, "default") == 0) 788 config.dynamic_link = TRUE; 789 else 790 einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg); 791 break; 792 case OPTION_ASSERT: 793 /* FIXME: We just ignore these, but we should handle them. */ 794 if (strcmp (optarg, "definitions") == 0) 795 ; 796 else if (strcmp (optarg, "nodefinitions") == 0) 797 ; 798 else if (strcmp (optarg, "nosymbolic") == 0) 799 ; 800 else if (strcmp (optarg, "pure-text") == 0) 801 ; 802 else 803 einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg); 804 break; 805 case 'A': 806 ldfile_add_arch (optarg); 807 break; 808 case 'b': 809 lang_add_target (optarg); 810 break; 811 case 'c': 812 ldfile_open_command_file (optarg); 813 parser_input = input_mri_script; 814 yyparse (); 815 break; 816 case OPTION_CALL_SHARED: 817 config.dynamic_link = TRUE; 818 break; 819 case OPTION_NON_SHARED: 820 config.dynamic_link = FALSE; 821 break; 822 case OPTION_CREF: 823 command_line.cref = TRUE; 824 link_info.notice_all = TRUE; 825 break; 826 case 'd': 827 command_line.force_common_definition = TRUE; 828 break; 829 case OPTION_DEFSYM: 830 lex_string = optarg; 831 lex_redirect (optarg); 832 parser_input = input_defsym; 833 parsing_defsym = 1; 834 yyparse (); 835 parsing_defsym = 0; 836 lex_string = NULL; 837 break; 838 case OPTION_DEMANGLE: 839 demangling = TRUE; 840 if (optarg != NULL) 841 { 842 enum demangling_styles style; 843 844 style = cplus_demangle_name_to_style (optarg); 845 if (style == unknown_demangling) 846 einfo (_("%F%P: unknown demangling style `%s'"), 847 optarg); 848 849 cplus_demangle_set_style (style); 850 } 851 break; 852 case 'I': /* Used on Solaris. */ 853 case OPTION_DYNAMIC_LINKER: 854 command_line.interpreter = optarg; 855 break; 856 case OPTION_SYSROOT: 857 /* Already handled in ldmain.c. */ 858 break; 859 case OPTION_EB: 860 command_line.endian = ENDIAN_BIG; 861 break; 862 case OPTION_EL: 863 command_line.endian = ENDIAN_LITTLE; 864 break; 865 case OPTION_EMBEDDED_RELOCS: 866 command_line.embedded_relocs = TRUE; 867 break; 868 case OPTION_EXPORT_DYNAMIC: 869 case 'E': /* HP/UX compatibility. */ 870 link_info.export_dynamic = TRUE; 871 break; 872 case OPTION_NO_EXPORT_DYNAMIC: 873 link_info.export_dynamic = FALSE; 874 break; 875 case 'e': 876 lang_add_entry (optarg, TRUE); 877 break; 878 case 'f': 879 if (command_line.auxiliary_filters == NULL) 880 { 881 command_line.auxiliary_filters = (char **) 882 xmalloc (2 * sizeof (char *)); 883 command_line.auxiliary_filters[0] = optarg; 884 command_line.auxiliary_filters[1] = NULL; 885 } 886 else 887 { 888 int c; 889 char **p; 890 891 c = 0; 892 for (p = command_line.auxiliary_filters; *p != NULL; p++) 893 ++c; 894 command_line.auxiliary_filters = (char **) 895 xrealloc (command_line.auxiliary_filters, 896 (c + 2) * sizeof (char *)); 897 command_line.auxiliary_filters[c] = optarg; 898 command_line.auxiliary_filters[c + 1] = NULL; 899 } 900 break; 901 case 'F': 902 command_line.filter_shlib = optarg; 903 break; 904 case OPTION_FORCE_EXE_SUFFIX: 905 command_line.force_exe_suffix = TRUE; 906 break; 907 case 'G': 908 { 909 char *end; 910 g_switch_value = strtoul (optarg, &end, 0); 911 if (*end) 912 einfo (_("%P%F: invalid number `%s'\n"), optarg); 913 } 914 break; 915 case 'g': 916 /* Ignore. */ 917 break; 918 case OPTION_GC_SECTIONS: 919 link_info.gc_sections = TRUE; 920 break; 921 case OPTION_PRINT_GC_SECTIONS: 922 link_info.print_gc_sections = TRUE; 923 break; 924 case OPTION_HELP: 925 help (); 926 xexit (0); 927 break; 928 case 'L': 929 ldfile_add_library_path (optarg, TRUE); 930 break; 931 case 'l': 932 lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL); 933 break; 934 case 'M': 935 config.map_filename = "-"; 936 break; 937 case 'm': 938 /* Ignore. Was handled in a pre-parse. */ 939 break; 940 case OPTION_MAP: 941 config.map_filename = optarg; 942 break; 943 case 'N': 944 config.text_read_only = FALSE; 945 config.magic_demand_paged = FALSE; 946 config.dynamic_link = FALSE; 947 break; 948 case OPTION_NO_OMAGIC: 949 config.text_read_only = TRUE; 950 config.magic_demand_paged = TRUE; 951 /* NB/ Does not set dynamic_link to TRUE. 952 Use --call-shared or -Bdynamic for this. */ 953 break; 954 case 'n': 955 config.magic_demand_paged = FALSE; 956 config.dynamic_link = FALSE; 957 break; 958 case OPTION_NO_DEFINE_COMMON: 959 command_line.inhibit_common_definition = TRUE; 960 break; 961 case OPTION_NO_DEMANGLE: 962 demangling = FALSE; 963 break; 964 case OPTION_NO_GC_SECTIONS: 965 link_info.gc_sections = FALSE; 966 break; 967 case OPTION_NO_PRINT_GC_SECTIONS: 968 link_info.print_gc_sections = FALSE; 969 break; 970 case OPTION_NO_KEEP_MEMORY: 971 link_info.keep_memory = FALSE; 972 break; 973 case OPTION_NO_UNDEFINED: 974 link_info.unresolved_syms_in_objects 975 = how_to_report_unresolved_symbols; 976 break; 977 case OPTION_ALLOW_SHLIB_UNDEFINED: 978 link_info.unresolved_syms_in_shared_libs = RM_IGNORE; 979 break; 980 case OPTION_NO_ALLOW_SHLIB_UNDEFINED: 981 link_info.unresolved_syms_in_shared_libs 982 = how_to_report_unresolved_symbols; 983 break; 984 case OPTION_UNRESOLVED_SYMBOLS: 985 if (strcmp (optarg, "ignore-all") == 0) 986 { 987 link_info.unresolved_syms_in_objects = RM_IGNORE; 988 link_info.unresolved_syms_in_shared_libs = RM_IGNORE; 989 } 990 else if (strcmp (optarg, "report-all") == 0) 991 { 992 link_info.unresolved_syms_in_objects 993 = how_to_report_unresolved_symbols; 994 link_info.unresolved_syms_in_shared_libs 995 = how_to_report_unresolved_symbols; 996 } 997 else if (strcmp (optarg, "ignore-in-object-files") == 0) 998 { 999 link_info.unresolved_syms_in_objects = RM_IGNORE; 1000 link_info.unresolved_syms_in_shared_libs 1001 = how_to_report_unresolved_symbols; 1002 } 1003 else if (strcmp (optarg, "ignore-in-shared-libs") == 0) 1004 { 1005 link_info.unresolved_syms_in_objects 1006 = how_to_report_unresolved_symbols; 1007 link_info.unresolved_syms_in_shared_libs = RM_IGNORE; 1008 } 1009 else 1010 einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg); 1011 break; 1012 case OPTION_WARN_UNRESOLVED_SYMBOLS: 1013 how_to_report_unresolved_symbols = RM_GENERATE_WARNING; 1014 if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR) 1015 link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING; 1016 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR) 1017 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING; 1018 break; 1019 1020 case OPTION_ERROR_UNRESOLVED_SYMBOLS: 1021 how_to_report_unresolved_symbols = RM_GENERATE_ERROR; 1022 if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING) 1023 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; 1024 if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING) 1025 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; 1026 break; 1027 case OPTION_ALLOW_MULTIPLE_DEFINITION: 1028 link_info.allow_multiple_definition = TRUE; 1029 break; 1030 case OPTION_NO_UNDEFINED_VERSION: 1031 link_info.allow_undefined_version = FALSE; 1032 break; 1033 case OPTION_DEFAULT_SYMVER: 1034 link_info.create_default_symver = TRUE; 1035 break; 1036 case OPTION_DEFAULT_IMPORTED_SYMVER: 1037 link_info.default_imported_symver = TRUE; 1038 break; 1039 case OPTION_NO_WARN_MISMATCH: 1040 command_line.warn_mismatch = FALSE; 1041 break; 1042 case OPTION_NO_WARN_SEARCH_MISMATCH: 1043 command_line.warn_search_mismatch = FALSE; 1044 break; 1045 case OPTION_NOINHIBIT_EXEC: 1046 force_make_executable = TRUE; 1047 break; 1048 case OPTION_NOSTDLIB: 1049 config.only_cmd_line_lib_dirs = TRUE; 1050 break; 1051 case OPTION_NO_WHOLE_ARCHIVE: 1052 whole_archive = FALSE; 1053 break; 1054 case 'O': 1055 /* FIXME "-O<non-digits> <value>" used to set the address of 1056 section <non-digits>. Was this for compatibility with 1057 something, or can we create a new option to do that 1058 (with a syntax similar to -defsym)? 1059 getopt can't handle two args to an option without kludges. */ 1060 1061 /* Enable optimizations of output files. */ 1062 link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE; 1063 break; 1064 case 'o': 1065 lang_add_output (optarg, 0); 1066 break; 1067 case OPTION_OFORMAT: 1068 lang_add_output_format (optarg, NULL, NULL, 0); 1069 break; 1070 #ifdef ENABLE_PLUGINS 1071 case OPTION_PLUGIN: 1072 if (plugin_opt_plugin (optarg)) 1073 einfo (_("%P%F: %s: error loading plugin\n"), 1074 plugin_error_plugin ()); 1075 break; 1076 case OPTION_PLUGIN_OPT: 1077 if (plugin_opt_plugin_arg (optarg)) 1078 einfo(_("%P%F: bad -plugin-opt option\n")); 1079 break; 1080 #endif /* ENABLE_PLUGINS */ 1081 case 'q': 1082 link_info.emitrelocations = TRUE; 1083 break; 1084 case 'i': 1085 case 'r': 1086 if (optind == last_optind) 1087 /* This can happen if the user put "-rpath,a" on the command 1088 line. (Or something similar. The comma is important). 1089 Getopt becomes confused and thinks that this is a -r option 1090 but it cannot parse the text after the -r so it refuses to 1091 increment the optind counter. Detect this case and issue 1092 an error message here. We cannot just make this a warning, 1093 increment optind, and continue because getopt is too confused 1094 and will seg-fault the next time around. */ 1095 einfo(_("%P%F: bad -rpath option\n")); 1096 1097 link_info.relocatable = TRUE; 1098 config.build_constructors = FALSE; 1099 config.magic_demand_paged = FALSE; 1100 config.text_read_only = FALSE; 1101 config.dynamic_link = FALSE; 1102 break; 1103 case 'R': 1104 /* The GNU linker traditionally uses -R to mean to include 1105 only the symbols from a file. The Solaris linker uses -R 1106 to set the path used by the runtime linker to find 1107 libraries. This is the GNU linker -rpath argument. We 1108 try to support both simultaneously by checking the file 1109 named. If it is a directory, rather than a regular file, 1110 we assume -rpath was meant. */ 1111 { 1112 struct stat s; 1113 1114 if (stat (optarg, &s) >= 0 1115 && ! S_ISDIR (s.st_mode)) 1116 { 1117 lang_add_input_file (optarg, 1118 lang_input_file_is_symbols_only_enum, 1119 NULL); 1120 break; 1121 } 1122 } 1123 /* Fall through. */ 1124 case OPTION_RPATH: 1125 if (command_line.rpath == NULL) 1126 command_line.rpath = xstrdup (optarg); 1127 else 1128 { 1129 size_t rpath_len = strlen (command_line.rpath); 1130 size_t optarg_len = strlen (optarg); 1131 char *buf; 1132 char *cp = command_line.rpath; 1133 1134 /* First see whether OPTARG is already in the path. */ 1135 do 1136 { 1137 if (strncmp (optarg, cp, optarg_len) == 0 1138 && (cp[optarg_len] == 0 1139 || cp[optarg_len] == config.rpath_separator)) 1140 /* We found it. */ 1141 break; 1142 1143 /* Not yet found. */ 1144 cp = strchr (cp, config.rpath_separator); 1145 if (cp != NULL) 1146 ++cp; 1147 } 1148 while (cp != NULL); 1149 1150 if (cp == NULL) 1151 { 1152 buf = (char *) xmalloc (rpath_len + optarg_len + 2); 1153 sprintf (buf, "%s%c%s", command_line.rpath, 1154 config.rpath_separator, optarg); 1155 free (command_line.rpath); 1156 command_line.rpath = buf; 1157 } 1158 } 1159 break; 1160 case OPTION_RPATH_LINK: 1161 if (command_line.rpath_link == NULL) 1162 command_line.rpath_link = xstrdup (optarg); 1163 else 1164 { 1165 char *buf; 1166 1167 buf = (char *) xmalloc (strlen (command_line.rpath_link) 1168 + strlen (optarg) 1169 + 2); 1170 sprintf (buf, "%s%c%s", command_line.rpath_link, 1171 config.rpath_separator, optarg); 1172 free (command_line.rpath_link); 1173 command_line.rpath_link = buf; 1174 } 1175 break; 1176 case OPTION_NO_RELAX: 1177 DISABLE_RELAXATION; 1178 break; 1179 case OPTION_RELAX: 1180 ENABLE_RELAXATION; 1181 break; 1182 case OPTION_RETAIN_SYMBOLS_FILE: 1183 add_keepsyms_file (optarg); 1184 break; 1185 case 'S': 1186 link_info.strip = strip_debugger; 1187 break; 1188 case 's': 1189 link_info.strip = strip_all; 1190 break; 1191 case OPTION_STRIP_DISCARDED: 1192 link_info.strip_discarded = TRUE; 1193 break; 1194 case OPTION_NO_STRIP_DISCARDED: 1195 link_info.strip_discarded = FALSE; 1196 break; 1197 case OPTION_SHARED: 1198 if (config.has_shared) 1199 { 1200 link_info.shared = TRUE; 1201 /* When creating a shared library, the default 1202 behaviour is to ignore any unresolved references. */ 1203 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET) 1204 link_info.unresolved_syms_in_objects = RM_IGNORE; 1205 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET) 1206 link_info.unresolved_syms_in_shared_libs = RM_IGNORE; 1207 } 1208 else 1209 einfo (_("%P%F: -shared not supported\n")); 1210 break; 1211 case OPTION_PIE: 1212 if (config.has_shared) 1213 { 1214 link_info.shared = TRUE; 1215 link_info.pie = TRUE; 1216 } 1217 else 1218 einfo (_("%P%F: -pie not supported\n")); 1219 break; 1220 case 'h': /* Used on Solaris. */ 1221 case OPTION_SONAME: 1222 command_line.soname = optarg; 1223 break; 1224 case OPTION_SORT_COMMON: 1225 if (optarg == NULL 1226 || strcmp (optarg, N_("descending")) == 0) 1227 config.sort_common = sort_descending; 1228 else if (strcmp (optarg, N_("ascending")) == 0) 1229 config.sort_common = sort_ascending; 1230 else 1231 einfo (_("%P%F: invalid common section sorting option: %s\n"), 1232 optarg); 1233 break; 1234 case OPTION_SORT_SECTION: 1235 if (strcmp (optarg, N_("name")) == 0) 1236 sort_section = by_name; 1237 else if (strcmp (optarg, N_("alignment")) == 0) 1238 sort_section = by_alignment; 1239 else 1240 einfo (_("%P%F: invalid section sorting option: %s\n"), 1241 optarg); 1242 break; 1243 case OPTION_STATS: 1244 config.stats = TRUE; 1245 break; 1246 case OPTION_SYMBOLIC: 1247 command_line.symbolic = symbolic; 1248 break; 1249 case OPTION_SYMBOLIC_FUNCTIONS: 1250 command_line.symbolic = symbolic_functions; 1251 break; 1252 case 't': 1253 trace_files = TRUE; 1254 break; 1255 case 'T': 1256 previous_script_handle = saved_script_handle; 1257 ldfile_open_command_file (optarg); 1258 parser_input = input_script; 1259 yyparse (); 1260 previous_script_handle = NULL; 1261 break; 1262 case OPTION_DEFAULT_SCRIPT: 1263 command_line.default_script = optarg; 1264 break; 1265 case OPTION_SECTION_START: 1266 { 1267 char *optarg2; 1268 char *sec_name; 1269 int len; 1270 1271 /* Check for <something>=<somthing>... */ 1272 optarg2 = strchr (optarg, '='); 1273 if (optarg2 == NULL) 1274 einfo (_("%P%F: invalid argument to option" 1275 " \"--section-start\"\n")); 1276 1277 optarg2++; 1278 1279 /* So far so good. Are all the args present? */ 1280 if ((*optarg == '\0') || (*optarg2 == '\0')) 1281 einfo (_("%P%F: missing argument(s) to option" 1282 " \"--section-start\"\n")); 1283 1284 /* We must copy the section name as set_section_start 1285 doesn't do it for us. */ 1286 len = optarg2 - optarg; 1287 sec_name = (char *) xmalloc (len); 1288 memcpy (sec_name, optarg, len - 1); 1289 sec_name[len - 1] = 0; 1290 1291 /* Then set it... */ 1292 set_section_start (sec_name, optarg2); 1293 } 1294 break; 1295 case OPTION_TARGET_HELP: 1296 /* Mention any target specific options. */ 1297 ldemul_list_emulation_options (stdout); 1298 exit (0); 1299 case OPTION_TBSS: 1300 set_segment_start (".bss", optarg); 1301 break; 1302 case OPTION_TDATA: 1303 set_segment_start (".data", optarg); 1304 break; 1305 case OPTION_TTEXT: 1306 set_segment_start (".text", optarg); 1307 break; 1308 case OPTION_TTEXT_SEGMENT: 1309 set_segment_start (".text-segment", optarg); 1310 break; 1311 case OPTION_TRADITIONAL_FORMAT: 1312 link_info.traditional_format = TRUE; 1313 break; 1314 case OPTION_TASK_LINK: 1315 link_info.task_link = TRUE; 1316 /* Fall through - do an implied -r option. */ 1317 case OPTION_UR: 1318 link_info.relocatable = TRUE; 1319 config.build_constructors = TRUE; 1320 config.magic_demand_paged = FALSE; 1321 config.text_read_only = FALSE; 1322 config.dynamic_link = FALSE; 1323 break; 1324 case 'u': 1325 ldlang_add_undef (optarg, TRUE); 1326 break; 1327 case OPTION_UNIQUE: 1328 if (optarg != NULL) 1329 lang_add_unique (optarg); 1330 else 1331 config.unique_orphan_sections = TRUE; 1332 break; 1333 case OPTION_VERBOSE: 1334 ldversion (1); 1335 version_printed = TRUE; 1336 trace_file_tries = TRUE; 1337 overflow_cutoff_limit = -2; 1338 if (optarg != NULL) 1339 { 1340 char *end; 1341 int level ATTRIBUTE_UNUSED = strtoul (optarg, &end, 0); 1342 if (*end) 1343 einfo (_("%P%F: invalid number `%s'\n"), optarg); 1344 #ifdef ENABLE_PLUGINS 1345 report_plugin_symbols = level > 1; 1346 #endif /* ENABLE_PLUGINS */ 1347 } 1348 break; 1349 case 'v': 1350 ldversion (0); 1351 version_printed = TRUE; 1352 break; 1353 case 'V': 1354 ldversion (1); 1355 version_printed = TRUE; 1356 break; 1357 case OPTION_VERSION: 1358 ldversion (2); 1359 xexit (0); 1360 break; 1361 case OPTION_VERSION_SCRIPT: 1362 /* This option indicates a small script that only specifies 1363 version information. Read it, but don't assume that 1364 we've seen a linker script. */ 1365 { 1366 FILE *hold_script_handle; 1367 1368 hold_script_handle = saved_script_handle; 1369 ldfile_open_command_file (optarg); 1370 saved_script_handle = hold_script_handle; 1371 parser_input = input_version_script; 1372 yyparse (); 1373 } 1374 break; 1375 case OPTION_VERSION_EXPORTS_SECTION: 1376 /* This option records a version symbol to be applied to the 1377 symbols listed for export to be found in the object files 1378 .exports sections. */ 1379 command_line.version_exports_section = optarg; 1380 break; 1381 case OPTION_DYNAMIC_LIST_DATA: 1382 command_line.dynamic_list = dynamic_list_data; 1383 if (command_line.symbolic == symbolic) 1384 command_line.symbolic = symbolic_unset; 1385 break; 1386 case OPTION_DYNAMIC_LIST_CPP_TYPEINFO: 1387 lang_append_dynamic_list_cpp_typeinfo (); 1388 if (command_line.dynamic_list != dynamic_list_data) 1389 command_line.dynamic_list = dynamic_list; 1390 if (command_line.symbolic == symbolic) 1391 command_line.symbolic = symbolic_unset; 1392 break; 1393 case OPTION_DYNAMIC_LIST_CPP_NEW: 1394 lang_append_dynamic_list_cpp_new (); 1395 if (command_line.dynamic_list != dynamic_list_data) 1396 command_line.dynamic_list = dynamic_list; 1397 if (command_line.symbolic == symbolic) 1398 command_line.symbolic = symbolic_unset; 1399 break; 1400 case OPTION_DYNAMIC_LIST: 1401 /* This option indicates a small script that only specifies 1402 a dynamic list. Read it, but don't assume that we've 1403 seen a linker script. */ 1404 { 1405 FILE *hold_script_handle; 1406 1407 hold_script_handle = saved_script_handle; 1408 ldfile_open_command_file (optarg); 1409 saved_script_handle = hold_script_handle; 1410 parser_input = input_dynamic_list; 1411 yyparse (); 1412 } 1413 if (command_line.dynamic_list != dynamic_list_data) 1414 command_line.dynamic_list = dynamic_list; 1415 if (command_line.symbolic == symbolic) 1416 command_line.symbolic = symbolic_unset; 1417 break; 1418 case OPTION_WARN_COMMON: 1419 config.warn_common = TRUE; 1420 break; 1421 case OPTION_WARN_CONSTRUCTORS: 1422 config.warn_constructors = TRUE; 1423 break; 1424 case OPTION_WARN_FATAL: 1425 config.fatal_warnings = TRUE; 1426 break; 1427 case OPTION_NO_WARN_FATAL: 1428 config.fatal_warnings = FALSE; 1429 break; 1430 case OPTION_WARN_MULTIPLE_GP: 1431 config.warn_multiple_gp = TRUE; 1432 break; 1433 case OPTION_WARN_ONCE: 1434 config.warn_once = TRUE; 1435 break; 1436 case OPTION_WARN_SECTION_ALIGN: 1437 config.warn_section_align = TRUE; 1438 break; 1439 case OPTION_WARN_SHARED_TEXTREL: 1440 link_info.warn_shared_textrel = TRUE; 1441 break; 1442 case OPTION_WARN_ALTERNATE_EM: 1443 link_info.warn_alternate_em = TRUE; 1444 break; 1445 case OPTION_WHOLE_ARCHIVE: 1446 whole_archive = TRUE; 1447 break; 1448 case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC: 1449 add_DT_NEEDED_for_dynamic = TRUE; 1450 break; 1451 case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC: 1452 add_DT_NEEDED_for_dynamic = FALSE; 1453 break; 1454 case OPTION_ADD_DT_NEEDED_FOR_REGULAR: 1455 add_DT_NEEDED_for_regular = TRUE; 1456 break; 1457 case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR: 1458 add_DT_NEEDED_for_regular = FALSE; 1459 break; 1460 case OPTION_WRAP: 1461 add_wrap (optarg); 1462 break; 1463 case OPTION_IGNORE_UNRESOLVED_SYMBOL: 1464 add_ignoresym (optarg); 1465 break; 1466 case OPTION_DISCARD_NONE: 1467 link_info.discard = discard_none; 1468 break; 1469 case 'X': 1470 link_info.discard = discard_l; 1471 break; 1472 case 'x': 1473 link_info.discard = discard_all; 1474 break; 1475 case 'Y': 1476 if (CONST_STRNEQ (optarg, "P,")) 1477 optarg += 2; 1478 if (default_dirlist != NULL) 1479 free (default_dirlist); 1480 default_dirlist = xstrdup (optarg); 1481 break; 1482 case 'y': 1483 add_ysym (optarg); 1484 break; 1485 case OPTION_SPARE_DYNAMIC_TAGS: 1486 link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0); 1487 break; 1488 case OPTION_SPLIT_BY_RELOC: 1489 if (optarg != NULL) 1490 config.split_by_reloc = strtoul (optarg, NULL, 0); 1491 else 1492 config.split_by_reloc = 32768; 1493 break; 1494 case OPTION_SPLIT_BY_FILE: 1495 if (optarg != NULL) 1496 config.split_by_file = bfd_scan_vma (optarg, NULL, 0); 1497 else 1498 config.split_by_file = 1; 1499 break; 1500 case OPTION_CHECK_SECTIONS: 1501 command_line.check_section_addresses = 1; 1502 break; 1503 case OPTION_NO_CHECK_SECTIONS: 1504 command_line.check_section_addresses = 0; 1505 break; 1506 case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH: 1507 command_line.accept_unknown_input_arch = TRUE; 1508 break; 1509 case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH: 1510 command_line.accept_unknown_input_arch = FALSE; 1511 break; 1512 case '(': 1513 lang_enter_group (); 1514 ingroup++; 1515 break; 1516 case ')': 1517 if (! ingroup) 1518 einfo (_("%P%F: group ended before it began (--help for usage)\n")); 1519 1520 lang_leave_group (); 1521 ingroup--; 1522 break; 1523 1524 case OPTION_INIT: 1525 link_info.init_function = optarg; 1526 break; 1527 1528 case OPTION_FINI: 1529 link_info.fini_function = optarg; 1530 break; 1531 1532 case OPTION_REDUCE_MEMORY_OVERHEADS: 1533 link_info.reduce_memory_overheads = TRUE; 1534 if (config.hash_table_size == 0) 1535 config.hash_table_size = 1021; 1536 break; 1537 1538 case OPTION_HASH_SIZE: 1539 { 1540 bfd_size_type new_size; 1541 1542 new_size = strtoul (optarg, NULL, 0); 1543 if (new_size) 1544 config.hash_table_size = new_size; 1545 else 1546 einfo (_("%P%X: --hash-size needs a numeric argument\n")); 1547 } 1548 break; 1549 } 1550 } 1551 1552 while (ingroup) 1553 { 1554 lang_leave_group (); 1555 ingroup--; 1556 } 1557 1558 if (default_dirlist != NULL) 1559 { 1560 set_default_dirlist (default_dirlist); 1561 free (default_dirlist); 1562 } 1563 1564 if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET) 1565 /* FIXME: Should we allow emulations a chance to set this ? */ 1566 link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols; 1567 1568 if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET) 1569 /* FIXME: Should we allow emulations a chance to set this ? */ 1570 link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols; 1571 1572 #ifdef ENABLE_PLUGINS 1573 /* Now all the plugin arguments have been gathered, we can load them. */ 1574 if (plugin_load_plugins ()) 1575 einfo (_("%P%F: %s: error loading plugin\n"), plugin_error_plugin ()); 1576 #endif /* ENABLE_PLUGINS */ 1577 } 1578 1579 /* Add the (colon-separated) elements of DIRLIST_PTR to the 1580 library search path. */ 1581 1582 static void 1583 set_default_dirlist (char *dirlist_ptr) 1584 { 1585 char *p; 1586 1587 while (1) 1588 { 1589 p = strchr (dirlist_ptr, PATH_SEPARATOR); 1590 if (p != NULL) 1591 *p = '\0'; 1592 if (*dirlist_ptr != '\0') 1593 ldfile_add_library_path (dirlist_ptr, TRUE); 1594 if (p == NULL) 1595 break; 1596 dirlist_ptr = p + 1; 1597 } 1598 } 1599 1600 static void 1601 set_section_start (char *sect, char *valstr) 1602 { 1603 const char *end; 1604 bfd_vma val = bfd_scan_vma (valstr, &end, 16); 1605 if (*end) 1606 einfo (_("%P%F: invalid hex number `%s'\n"), valstr); 1607 lang_section_start (sect, exp_intop (val), NULL); 1608 } 1609 1610 static void 1611 set_segment_start (const char *section, char *valstr) 1612 { 1613 const char *name; 1614 const char *end; 1615 segment_type *seg; 1616 1617 bfd_vma val = bfd_scan_vma (valstr, &end, 16); 1618 if (*end) 1619 einfo (_("%P%F: invalid hex number `%s'\n"), valstr); 1620 /* If we already have an entry for this segment, update the existing 1621 value. */ 1622 name = section + 1; 1623 for (seg = segments; seg; seg = seg->next) 1624 if (strcmp (seg->name, name) == 0) 1625 { 1626 seg->value = val; 1627 return; 1628 } 1629 /* There was no existing value so we must create a new segment 1630 entry. */ 1631 seg = (segment_type *) stat_alloc (sizeof (*seg)); 1632 seg->name = name; 1633 seg->value = val; 1634 seg->used = FALSE; 1635 /* Add it to the linked list of segments. */ 1636 seg->next = segments; 1637 segments = seg; 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); 1643 } 1644 1645 1646 /* Print help messages for the options. */ 1647 1648 static void 1649 help (void) 1650 { 1651 unsigned i; 1652 const char **targets, **pp; 1653 int len; 1654 1655 printf (_("Usage: %s [options] file...\n"), program_name); 1656 1657 printf (_("Options:\n")); 1658 for (i = 0; i < OPTION_COUNT; i++) 1659 { 1660 if (ld_options[i].doc != NULL) 1661 { 1662 bfd_boolean comma; 1663 unsigned j; 1664 1665 printf (" "); 1666 1667 comma = FALSE; 1668 len = 2; 1669 1670 j = i; 1671 do 1672 { 1673 if (ld_options[j].shortopt != '\0' 1674 && ld_options[j].control != NO_HELP) 1675 { 1676 printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt); 1677 len += (comma ? 2 : 0) + 2; 1678 if (ld_options[j].arg != NULL) 1679 { 1680 if (ld_options[j].opt.has_arg != optional_argument) 1681 { 1682 printf (" "); 1683 ++len; 1684 } 1685 printf ("%s", _(ld_options[j].arg)); 1686 len += strlen (_(ld_options[j].arg)); 1687 } 1688 comma = TRUE; 1689 } 1690 ++j; 1691 } 1692 while (j < OPTION_COUNT && ld_options[j].doc == NULL); 1693 1694 j = i; 1695 do 1696 { 1697 if (ld_options[j].opt.name != NULL 1698 && ld_options[j].control != NO_HELP) 1699 { 1700 int two_dashes = 1701 (ld_options[j].control == TWO_DASHES 1702 || ld_options[j].control == EXACTLY_TWO_DASHES); 1703 1704 printf ("%s-%s%s", 1705 comma ? ", " : "", 1706 two_dashes ? "-" : "", 1707 ld_options[j].opt.name); 1708 len += ((comma ? 2 : 0) 1709 + 1 1710 + (two_dashes ? 1 : 0) 1711 + strlen (ld_options[j].opt.name)); 1712 if (ld_options[j].arg != NULL) 1713 { 1714 printf (" %s", _(ld_options[j].arg)); 1715 len += 1 + strlen (_(ld_options[j].arg)); 1716 } 1717 comma = TRUE; 1718 } 1719 ++j; 1720 } 1721 while (j < OPTION_COUNT && ld_options[j].doc == NULL); 1722 1723 if (len >= 30) 1724 { 1725 printf ("\n"); 1726 len = 0; 1727 } 1728 1729 for (; len < 30; len++) 1730 putchar (' '); 1731 1732 printf ("%s\n", _(ld_options[i].doc)); 1733 } 1734 } 1735 printf (_(" @FILE")); 1736 for (len = strlen (" @FILE"); len < 30; len++) 1737 putchar (' '); 1738 printf (_("Read options from FILE\n")); 1739 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); 1747 free (targets); 1748 printf ("\n"); 1749 1750 /* xgettext:c-format */ 1751 printf (_("%s: supported emulations: "), program_name); 1752 ldemul_list_emulations (stdout); 1753 printf ("\n"); 1754 1755 /* xgettext:c-format */ 1756 printf (_("%s: emulation specific options:\n"), program_name); 1757 ldemul_list_emulation_options (stdout); 1758 printf ("\n"); 1759 1760 if (REPORT_BUGS_TO[0]) 1761 printf (_("Report bugs to %s\n"), REPORT_BUGS_TO); 1762 } 1763