ld/lexsup.c

   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
   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
  44 #ifndef PATH_SEPARATOR
  45 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
  46 #define PATH_SEPARATOR ';'
  47 #else
  48 #define PATH_SEPARATOR ':'
  49 #endif
  50 #endif
  51
  52 /* Somewhere above, sys/stat.h got included . . . .  */
  53 #if !defined(S_ISDIR) && defined(S_IFDIR)
  54 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
  55 #endif
  56
  57 static void set_default_dirlist (char *);
  58 static void set_section_start (char *, char *);
  59 static void set_segment_start (const char *, char *);
  60 static void help (void);
  61
  62 /* Non-zero if we are processing a --defsym from the command line.  */
  63 int parsing_defsym = 0;
  64
  65 /* Codes used for the long options with no short synonyms.  150 isn't
  66    special; it's just an arbitrary non-ASCII char value.  */
  67 enum option_values
  68 {
  69   OPTION_ASSERT = 150,
  70   OPTION_CALL_SHARED,
  71   OPTION_CREF,
  72   OPTION_DEFSYM,
  73   OPTION_DEMANGLE,
  74   OPTION_DYNAMIC_LINKER,
  75   OPTION_SYSROOT,
  76   OPTION_EB,
  77   OPTION_EL,
  78   OPTION_EMBEDDED_RELOCS,
  79   OPTION_EXPORT_DYNAMIC,
  80   OPTION_HELP,
  81   OPTION_IGNORE,
  82   OPTION_MAP,
  83   OPTION_NO_DEMANGLE,
  84   OPTION_NO_KEEP_MEMORY,
  85   OPTION_NO_WARN_MISMATCH,
  86   OPTION_NO_WARN_SEARCH_MISMATCH,
  87   OPTION_NOINHIBIT_EXEC,
  88   OPTION_NON_SHARED,
  89   OPTION_NO_WHOLE_ARCHIVE,
  90   OPTION_OFORMAT,
  91   OPTION_RELAX,
  92   OPTION_RETAIN_SYMBOLS_FILE,
  93   OPTION_RPATH,
  94   OPTION_RPATH_LINK,
  95   OPTION_SHARED,
  96   OPTION_SONAME,
  97   OPTION_SORT_COMMON,
  98   OPTION_SORT_SECTION,
  99   OPTION_STATS,
 100   OPTION_SYMBOLIC,
 101   OPTION_SYMBOLIC_FUNCTIONS,
 102   OPTION_TASK_LINK,
 103   OPTION_TBSS,
 104   OPTION_TDATA,
 105   OPTION_TTEXT,
 106   OPTION_TRADITIONAL_FORMAT,
 107   OPTION_UR,
 108   OPTION_VERBOSE,
 109   OPTION_VERSION,
 110   OPTION_VERSION_SCRIPT,
 111   OPTION_VERSION_EXPORTS_SECTION,
 112   OPTION_DYNAMIC_LIST,
 113   OPTION_DYNAMIC_LIST_CPP_NEW,
 114   OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
 115   OPTION_DYNAMIC_LIST_DATA,
 116   OPTION_WARN_COMMON,
 117   OPTION_WARN_CONSTRUCTORS,
 118   OPTION_WARN_FATAL,
 119   OPTION_NO_WARN_FATAL,
 120   OPTION_WARN_MULTIPLE_GP,
 121   OPTION_WARN_ONCE,
 122   OPTION_WARN_SECTION_ALIGN,
 123   OPTION_SPLIT_BY_RELOC,
 124   OPTION_SPLIT_BY_FILE ,
 125   OPTION_WHOLE_ARCHIVE,
 126   OPTION_ADD_NEEDED,
 127   OPTION_NO_ADD_NEEDED,
 128   OPTION_AS_NEEDED,
 129   OPTION_NO_AS_NEEDED,
 130   OPTION_WRAP,
 131   OPTION_FORCE_EXE_SUFFIX,
 132   OPTION_GC_SECTIONS,
 133   OPTION_NO_GC_SECTIONS,
 134   OPTION_PRINT_GC_SECTIONS,
 135   OPTION_NO_PRINT_GC_SECTIONS,
 136   OPTION_HASH_SIZE,
 137   OPTION_CHECK_SECTIONS,
 138   OPTION_NO_CHECK_SECTIONS,
 139   OPTION_NO_UNDEFINED,
 140   OPTION_INIT,
 141   OPTION_FINI,
 142   OPTION_SECTION_START,
 143   OPTION_UNIQUE,
 144   OPTION_TARGET_HELP,
 145   OPTION_ALLOW_SHLIB_UNDEFINED,
 146   OPTION_NO_ALLOW_SHLIB_UNDEFINED,
 147   OPTION_ALLOW_MULTIPLE_DEFINITION,
 148   OPTION_NO_UNDEFINED_VERSION,
 149   OPTION_DEFAULT_SYMVER,
 150   OPTION_DEFAULT_IMPORTED_SYMVER,
 151   OPTION_DISCARD_NONE,
 152   OPTION_SPARE_DYNAMIC_TAGS,
 153   OPTION_NO_DEFINE_COMMON,
 154   OPTION_NOSTDLIB,
 155   OPTION_NO_OMAGIC,
 156   OPTION_STRIP_DISCARDED,
 157   OPTION_NO_STRIP_DISCARDED,
 158   OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
 159   OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
 160   OPTION_PIE,
 161   OPTION_UNRESOLVED_SYMBOLS,
 162   OPTION_WARN_UNRESOLVED_SYMBOLS,
 163   OPTION_ERROR_UNRESOLVED_SYMBOLS,
 164   OPTION_WARN_SHARED_TEXTREL,
 165   OPTION_REDUCE_MEMORY_OVERHEADS,
 166   OPTION_DEFAULT_SCRIPT
 167 };
 168
 169 /* The long options.  This structure is used for both the option
 170    parsing and the help text.  */
 171
 172 struct ld_option
 173 {
 174   /* The long option information.  */
 175   struct option opt;
 176   /* The short option with the same meaning ('\0' if none).  */
 177   char shortopt;
 178   /* The name of the argument (NULL if none).  */
 179   const char *arg;
 180   /* The documentation string.  If this is NULL, this is a synonym for
 181      the previous option.  */
 182   const char *doc;
 183   enum {
 184     /* Use one dash before long option name.  */
 185     ONE_DASH,
 186     /* Use two dashes before long option name.  */
 187     TWO_DASHES,
 188     /* Only accept two dashes before the long option name.
 189        This is an overloading of the use of this enum, since originally it
 190        was only intended to tell the --help display function how to display
 191        the long option name.  This feature was added in order to resolve
 192        the confusion about the -omagic command line switch.  Is it setting
 193        the output file name to "magic" or is it setting the NMAGIC flag on
 194        the output ?  It has been decided that it is setting the output file
 195        name, and that if you want to set the NMAGIC flag you should use -N
 196        or --omagic.  */
 197     EXACTLY_TWO_DASHES,
 198     /* Don't mention this option in --help output.  */
 199     NO_HELP
 200   } control;
 201 };
 202
 203 static const struct ld_option ld_options[] =
 204 {
 205   { {NULL, required_argument, NULL, '\0'},
 206     'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
 207     ONE_DASH },
 208   { {"architecture", required_argument, NULL, 'A'},
 209     'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
 210   { {"format", required_argument, NULL, 'b'},
 211     'b', N_("TARGET"), N_("Specify target for following input files"),
 212     TWO_DASHES },
 213   { {"mri-script", required_argument, NULL, 'c'},
 214     'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
 215   { {"dc", no_argument, NULL, 'd'},
 216     'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
 217   { {"dp", no_argument, NULL, 'd'},
 218     '\0', NULL, NULL, ONE_DASH },
 219   { {"entry", required_argument, NULL, 'e'},
 220     'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
 221   { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
 222     'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
 223   { {"EB", no_argument, NULL, OPTION_EB},
 224     '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
 225   { {"EL", no_argument, NULL, OPTION_EL},
 226     '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
 227   { {"auxiliary", required_argument, NULL, 'f'},
 228     'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
 229     TWO_DASHES },
 230   { {"filter", required_argument, NULL, 'F'},
 231     'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
 232     TWO_DASHES },
 233   { {NULL, no_argument, NULL, '\0'},
 234     'g', NULL, N_("Ignored"), ONE_DASH },
 235   { {"gpsize", required_argument, NULL, 'G'},
 236     'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
 237     TWO_DASHES },
 238   { {"soname", required_argument, NULL, OPTION_SONAME},
 239     'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
 240   { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
 241     'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
 242     TWO_DASHES },
 243   { {"library", required_argument, NULL, 'l'},
 244     'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
 245   { {"library-path", required_argument, NULL, 'L'},
 246     'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
 247     TWO_DASHES },
 248   { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
 249     '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
 250   { {NULL, required_argument, NULL, '\0'},
 251     'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
 252   { {"print-map", no_argument, NULL, 'M'},
 253     'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
 254   { {"nmagic", no_argument, NULL, 'n'},
 255     'n', NULL, N_("Do not page align data"), TWO_DASHES },
 256   { {"omagic", no_argument, NULL, 'N'},
 257     'N', NULL, N_("Do not page align data, do not make text readonly"),
 258     EXACTLY_TWO_DASHES },
 259   { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
 260     '\0', NULL, N_("Page align data, make text readonly"),
 261     EXACTLY_TWO_DASHES },
 262   { {"output", required_argument, NULL, 'o'},
 263     'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
 264   { {NULL, required_argument, NULL, '\0'},
 265     'O', NULL, N_("Optimize output file"), ONE_DASH },
 266   { {"Qy", no_argument, NULL, OPTION_IGNORE},
 267     '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
 268   { {"emit-relocs", no_argument, NULL, 'q'},
 269     'q', NULL, "Generate relocations in final output", TWO_DASHES },
 270   { {"relocatable", no_argument, NULL, 'r'},
 271     'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
 272   { {NULL, no_argument, NULL, '\0'},
 273     'i', NULL, NULL, ONE_DASH },
 274   { {"just-symbols", required_argument, NULL, 'R'},
 275     'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
 276     TWO_DASHES },
 277   { {"strip-all", no_argument, NULL, 's'},
 278     's', NULL, N_("Strip all symbols"), TWO_DASHES },
 279   { {"strip-debug", no_argument, NULL, 'S'},
 280     'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
 281   { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
 282     '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
 283   { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
 284     '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
 285   { {"trace", no_argument, NULL, 't'},
 286     't', NULL, N_("Trace file opens"), TWO_DASHES },
 287   { {"script", required_argument, NULL, 'T'},
 288     'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
 289   { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
 290     '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
 291   { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
 292     '\0', NULL, NULL, ONE_DASH },
 293   { {"undefined", required_argument, NULL, 'u'},
 294     'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
 295     TWO_DASHES },
 296   { {"unique", optional_argument, NULL, OPTION_UNIQUE},
 297     '\0', N_("[=SECTION]"),
 298     N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
 299   { {"Ur", no_argument, NULL, OPTION_UR},
 300     '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
 301   { {"version", no_argument, NULL, OPTION_VERSION},
 302     'v', NULL, N_("Print version information"), TWO_DASHES },
 303   { {NULL, no_argument, NULL, '\0'},
 304     'V', NULL, N_("Print version and emulation information"), ONE_DASH },
 305   { {"discard-all", no_argument, NULL, 'x'},
 306     'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
 307   { {"discard-locals", no_argument, NULL, 'X'},
 308     'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
 309   { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
 310     '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
 311   { {"trace-symbol", required_argument, NULL, 'y'},
 312     'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
 313   { {NULL, required_argument, NULL, '\0'},
 314     'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
 315     ONE_DASH },
 316   { {"start-group", no_argument, NULL, '('},
 317     '(', NULL, N_("Start a group"), TWO_DASHES },
 318   { {"end-group", no_argument, NULL, ')'},
 319     ')', NULL, N_("End a group"), TWO_DASHES },
 320   { {"accept-unknown-input-arch", no_argument, NULL,
 321      OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
 322     '\0', NULL,
 323     N_("Accept input files whose architecture cannot be determined"),
 324     TWO_DASHES },
 325   { {"no-accept-unknown-input-arch", no_argument, NULL,
 326      OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
 327     '\0', NULL, N_("Reject input files whose architecture is unknown"),
 328     TWO_DASHES },
 329   { {"add-needed", no_argument, NULL, OPTION_ADD_NEEDED},
 330     '\0', NULL, N_("Set DT_NEEDED tags for DT_NEEDED entries in\n"
 331                    "                                following dynamic libs"),
 332     TWO_DASHES },
 333   { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_NEEDED},
 334     '\0', NULL, N_("Do not set DT_NEEDED tags for DT_NEEDED entries\n"
 335                    "                                in following dynamic libs"),
 336     TWO_DASHES },
 337   { {"as-needed", no_argument, NULL, OPTION_AS_NEEDED},
 338     '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
 339     TWO_DASHES },
 340   { {"no-as-needed", no_argument, NULL, OPTION_NO_AS_NEEDED},
 341     '\0', NULL, N_("Always set DT_NEEDED for following dynamic libs"),
 342     TWO_DASHES },
 343   { {"assert", required_argument, NULL, OPTION_ASSERT},
 344     '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
 345   { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
 346     '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
 347   { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
 348     '\0', NULL, NULL, ONE_DASH },
 349   { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
 350     '\0', NULL, NULL, ONE_DASH },
 351   { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
 352     '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
 353   { {"dn", no_argument, NULL, OPTION_NON_SHARED},
 354     '\0', NULL, NULL, ONE_DASH },
 355   { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
 356     '\0', NULL, NULL, ONE_DASH },
 357   { {"static", no_argument, NULL, OPTION_NON_SHARED},
 358     '\0', NULL, NULL, ONE_DASH },
 359   { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
 360     '\0', NULL, N_("Bind global references locally"), ONE_DASH },
 361   { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
 362     '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
 363   { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
 364     '\0', NULL, N_("Check section addresses for overlaps (default)"),
 365     TWO_DASHES },
 366   { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
 367     '\0', NULL, N_("Do not check section addresses for overlaps"),
 368     TWO_DASHES },
 369   { {"cref", no_argument, NULL, OPTION_CREF},
 370     '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
 371   { {"defsym", required_argument, NULL, OPTION_DEFSYM},
 372     '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
 373   { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
 374     '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
 375     TWO_DASHES },
 376   { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
 377     '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
 378   { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
 379     '\0', NULL, N_("Treat warnings as errors"),
 380     TWO_DASHES },
 381   { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
 382     '\0', NULL, N_("Do not treat warnings as errors (default)"),
 383     TWO_DASHES },
 384   { {"fini", required_argument, NULL, OPTION_FINI},
 385     '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
 386   { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
 387     '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
 388   { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
 389     '\0', NULL, N_("Remove unused sections (on some targets)"),
 390     TWO_DASHES },
 391   { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
 392     '\0', NULL, N_("Don't remove unused sections (default)"),
 393     TWO_DASHES },
 394   { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
 395     '\0', NULL, N_("List removed unused sections on stderr"),
 396     TWO_DASHES },
 397   { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
 398     '\0', NULL, N_("Do not list removed unused sections"),
 399     TWO_DASHES },
 400   { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
 401     '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
 402     TWO_DASHES },
 403   { {"help", no_argument, NULL, OPTION_HELP},
 404     '\0', NULL, N_("Print option help"), TWO_DASHES },
 405   { {"init", required_argument, NULL, OPTION_INIT},
 406     '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
 407   { {"Map", required_argument, NULL, OPTION_MAP},
 408     '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
 409   { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
 410     '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
 411   { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
 412     '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
 413   { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
 414     '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
 415   { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
 416     '\0', NULL, N_("Do not allow unresolved references in object files"),
 417     TWO_DASHES },
 418   { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
 419     '\0', NULL, N_("Allow unresolved references in shared libaries"),
 420     TWO_DASHES },
 421   { {"no-allow-shlib-undefined", no_argument, NULL,
 422      OPTION_NO_ALLOW_SHLIB_UNDEFINED},
 423     '\0', NULL, N_("Do not allow unresolved references in shared libs"),
 424     TWO_DASHES },
 425   { {"allow-multiple-definition", no_argument, NULL,
 426      OPTION_ALLOW_MULTIPLE_DEFINITION},
 427     '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
 428   { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
 429     '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
 430   { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
 431     '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
 432   { {"default-imported-symver", no_argument, NULL,
 433       OPTION_DEFAULT_IMPORTED_SYMVER},
 434     '\0', NULL, N_("Create default symbol version for imported symbols"),
 435     TWO_DASHES },
 436   { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
 437     '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
 438   { {"no-warn-search-mismatch", no_argument, NULL,
 439      OPTION_NO_WARN_SEARCH_MISMATCH},
 440     '\0', NULL, N_("Don't warn on finding an incompatible library"),
 441     TWO_DASHES},
 442   { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
 443     '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
 444   { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 445     '\0', NULL, N_("Create an output file even if errors occur"),
 446     TWO_DASHES },
 447   { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 448     '\0', NULL, NULL, NO_HELP },
 449   { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
 450     '\0', NULL, N_("Only use library directories specified on\n"
 451                    "                                the command line"),
 452     ONE_DASH },
 453   { {"oformat", required_argument, NULL, OPTION_OFORMAT},
 454     '\0', N_("TARGET"), N_("Specify target of output file"),
 455     EXACTLY_TWO_DASHES },
 456   { {"qmagic", no_argument, NULL, OPTION_IGNORE},
 457     '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
 458   { {"reduce-memory-overheads", no_argument, NULL,
 459      OPTION_REDUCE_MEMORY_OVERHEADS},
 460     '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
 461     TWO_DASHES },
 462   { {"relax", no_argument, NULL, OPTION_RELAX},
 463     '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES },
 464   { {"retain-symbols-file", required_argument, NULL,
 465      OPTION_RETAIN_SYMBOLS_FILE},
 466     '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
 467   { {"rpath", required_argument, NULL, OPTION_RPATH},
 468     '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
 469   { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
 470     '\0', N_("PATH"), N_("Set link time shared library search path"),
 471     ONE_DASH },
 472   { {"shared", no_argument, NULL, OPTION_SHARED},
 473     '\0', NULL, N_("Create a shared library"), ONE_DASH },
 474   { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD.  */
 475     '\0', NULL, NULL, ONE_DASH },
 476   { {"pie", no_argument, NULL, OPTION_PIE},
 477     '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
 478   { {"pic-executable", no_argument, NULL, OPTION_PIE},
 479     '\0', NULL, NULL, TWO_DASHES },
 480   { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
 481     '\0', N_("[=ascending|descending]"),
 482     N_("Sort common symbols by alignment [in specified order]"),
 483     TWO_DASHES },
 484   { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
 485     '\0', NULL, NULL, NO_HELP },
 486   { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
 487     '\0', N_("name|alignment"),
 488     N_("Sort sections by name or maximum alignment"), TWO_DASHES },
 489   { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
 490     '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
 491     TWO_DASHES },
 492   { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
 493     '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
 494     TWO_DASHES },
 495   { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
 496     '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
 497     TWO_DASHES },
 498   { {"stats", no_argument, NULL, OPTION_STATS},
 499     '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
 500   { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
 501     '\0', NULL, N_("Display target specific options"), TWO_DASHES },
 502   { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
 503     '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
 504   { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
 505     '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
 506   { {"section-start", required_argument, NULL, OPTION_SECTION_START},
 507     '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
 508     TWO_DASHES },
 509   { {"Tbss", required_argument, NULL, OPTION_TBSS},
 510     '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
 511   { {"Tdata", required_argument, NULL, OPTION_TDATA},
 512     '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
 513   { {"Ttext", required_argument, NULL, OPTION_TTEXT},
 514     '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
 515   { {"unresolved-symbols=<method>", required_argument, NULL,
 516      OPTION_UNRESOLVED_SYMBOLS},
 517     '\0', NULL, N_("How to handle unresolved symbols.  <method> is:\n"
 518                    "                                ignore-all, report-all, ignore-in-object-files,\n"
 519                    "                                ignore-in-shared-libs"),
 520     TWO_DASHES },
 521   { {"verbose", no_argument, NULL, OPTION_VERBOSE},
 522     '\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
 523   { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux.  */
 524     '\0', NULL, NULL, NO_HELP },
 525   { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
 526     '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
 527   { {"version-exports-section", required_argument, NULL,
 528      OPTION_VERSION_EXPORTS_SECTION },
 529     '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
 530                            "                                SYMBOL as the version."),
 531     TWO_DASHES },
 532   { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
 533     '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
 534   { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
 535     '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
 536   { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
 537     '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
 538   { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
 539     '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
 540   { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
 541     '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
 542   { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
 543     '\0', NULL, N_("Warn if global constructors/destructors are seen"),
 544     TWO_DASHES },
 545   { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
 546     '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
 547   { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
 548     '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
 549   { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
 550     '\0', NULL, N_("Warn if start of section changes due to alignment"),
 551     TWO_DASHES },
 552   { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
 553     '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
 554     TWO_DASHES },
 555   { {"warn-unresolved-symbols", no_argument, NULL,
 556      OPTION_WARN_UNRESOLVED_SYMBOLS},
 557     '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
 558   { {"error-unresolved-symbols", no_argument, NULL,
 559      OPTION_ERROR_UNRESOLVED_SYMBOLS},
 560     '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
 561   { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
 562     '\0', NULL, N_("Include all objects from following archives"),
 563     TWO_DASHES },
 564   { {"wrap", required_argument, NULL, OPTION_WRAP},
 565     '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
 566 };
 567
 568 #define OPTION_COUNT ARRAY_SIZE (ld_options)
 569
 570 void
 571 parse_args (unsigned argc, char **argv)
 572 {
 573   unsigned i;
 574   int is, il, irl;
 575   int ingroup = 0;
 576   char *default_dirlist = NULL;
 577   char *shortopts;
 578   struct option *longopts;
 579   struct option *really_longopts;
 580   int last_optind;
 581   enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
 582
 583   shortopts = xmalloc (OPTION_COUNT * 3 + 2);
 584   longopts = xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
 585   really_longopts = xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
 586
 587   /* Starting the short option string with '-' is for programs that
 588      expect options and other ARGV-elements in any order and that care about
 589      the ordering of the two.  We describe each non-option ARGV-element
 590      as if it were the argument of an option with character code 1.  */
 591   shortopts[0] = '-';
 592   is = 1;
 593   il = 0;
 594   irl = 0;
 595   for (i = 0; i < OPTION_COUNT; i++)
 596     {
 597       if (ld_options[i].shortopt != '\0')
 598         {
 599           shortopts[is] = ld_options[i].shortopt;
 600           ++is;
 601           if (ld_options[i].opt.has_arg == required_argument
 602               || ld_options[i].opt.has_arg == optional_argument)
 603             {
 604               shortopts[is] = ':';
 605               ++is;
 606               if (ld_options[i].opt.has_arg == optional_argument)
 607                 {
 608                   shortopts[is] = ':';
 609                   ++is;
 610                 }
 611             }
 612         }
 613       if (ld_options[i].opt.name != NULL)
 614         {
 615           if (ld_options[i].control == EXACTLY_TWO_DASHES)
 616             {
 617               really_longopts[irl] = ld_options[i].opt;
 618               ++irl;
 619             }
 620           else
 621             {
 622               longopts[il] = ld_options[i].opt;
 623               ++il;
 624             }
 625         }
 626     }
 627   shortopts[is] = '\0';
 628   longopts[il].name = NULL;
 629   really_longopts[irl].name = NULL;
 630
 631   ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
 632
 633   /* The -G option is ambiguous on different platforms.  Sometimes it
 634      specifies the largest data size to put into the small data
 635      section.  Sometimes it is equivalent to --shared.  Unfortunately,
 636      the first form takes an argument, while the second does not.
 637
 638      We need to permit the --shared form because on some platforms,
 639      such as Solaris, gcc -shared will pass -G to the linker.
 640
 641      To permit either usage, we look through the argument list.  If we
 642      find -G not followed by a number, we change it into --shared.
 643      This will work for most normal cases.  */
 644   for (i = 1; i < argc; i++)
 645     if (strcmp (argv[i], "-G") == 0
 646         && (i + 1 >= argc
 647             || ! ISDIGIT (argv[i + 1][0])))
 648       argv[i] = (char *) "--shared";
 649
 650   /* Because we permit long options to start with a single dash, and
 651      we have a --library option, and the -l option is conventionally
 652      used with an immediately following argument, we can have bad
 653      results if somebody tries to use -l with a library whose name
 654      happens to start with "ibrary", as in -li.  We avoid problems by
 655      simply turning -l into --library.  This means that users will
 656      have to use two dashes in order to use --library, which is OK
 657      since that's how it is documented.
 658
 659      FIXME: It's possible that this problem can arise for other short
 660      options as well, although the user does always have the recourse
 661      of adding a space between the option and the argument.  */
 662   for (i = 1; i < argc; i++)
 663     {
 664       if (argv[i][0] == '-'
 665           && argv[i][1] == 'l'
 666           && argv[i][2] != '\0')
 667         {
 668           char *n;
 669
 670           n = xmalloc (strlen (argv[i]) + 20);
 671           sprintf (n, "--library=%s", argv[i] + 2);
 672           argv[i] = n;
 673         }
 674     }
 675
 676   last_optind = -1;
 677   while (1)
 678     {
 679       int longind;
 680       int optc;
 681
 682       /* Using last_optind lets us avoid calling ldemul_parse_args
 683          multiple times on a single option, which would lead to
 684          confusion in the internal static variables maintained by
 685          getopt.  This could otherwise happen for an argument like
 686          -nx, in which the -n is parsed as a single option, and we
 687          loop around to pick up the -x.  */
 688       if (optind != last_optind)
 689         if (ldemul_parse_args (argc, argv))
 690           continue;
 691
 692       /* getopt_long_only is like getopt_long, but '-' as well as '--'
 693          can indicate a long option.  */
 694       opterr = 0;
 695       last_optind = optind;
 696       optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
 697       if (optc == '?')
 698         {
 699           optind = last_optind;
 700           optc = getopt_long (argc, argv, "-", really_longopts, &longind);
 701         }
 702
 703       if (ldemul_handle_option (optc))
 704         continue;
 705
 706       if (optc == -1)
 707         break;
 708
 709       switch (optc)
 710         {
 711         case '?':
 712           einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
 713           /* Fall through.  */
 714
 715         default:
 716           einfo (_("%P%F: use the --help option for usage information\n"));
 717
 718         case 1:                 /* File name.  */
 719           lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
 720           break;
 721
 722         case OPTION_IGNORE:
 723           break;
 724         case 'a':
 725           /* For HP/UX compatibility.  Actually -a shared should mean
 726              ``use only shared libraries'' but, then, we don't
 727              currently support shared libraries on HP/UX anyhow.  */
 728           if (strcmp (optarg, "archive") == 0)
 729             config.dynamic_link = FALSE;
 730           else if (strcmp (optarg, "shared") == 0
 731                    || strcmp (optarg, "default") == 0)
 732             config.dynamic_link = TRUE;
 733           else
 734             einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
 735           break;
 736         case OPTION_ASSERT:
 737           /* FIXME: We just ignore these, but we should handle them.  */
 738           if (strcmp (optarg, "definitions") == 0)
 739             ;
 740           else if (strcmp (optarg, "nodefinitions") == 0)
 741             ;
 742           else if (strcmp (optarg, "nosymbolic") == 0)
 743             ;
 744           else if (strcmp (optarg, "pure-text") == 0)
 745             ;
 746           else
 747             einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
 748           break;
 749         case 'A':
 750           ldfile_add_arch (optarg);
 751           break;
 752         case 'b':
 753           lang_add_target (optarg);
 754           break;
 755         case 'c':
 756           ldfile_open_command_file (optarg);
 757           parser_input = input_mri_script;
 758           yyparse ();
 759           break;
 760         case OPTION_CALL_SHARED:
 761           config.dynamic_link = TRUE;
 762           break;
 763         case OPTION_NON_SHARED:
 764           config.dynamic_link = FALSE;
 765           break;
 766         case OPTION_CREF:
 767           command_line.cref = TRUE;
 768           link_info.notice_all = TRUE;
 769           break;
 770         case 'd':
 771           command_line.force_common_definition = TRUE;
 772           break;
 773         case OPTION_DEFSYM:
 774           lex_string = optarg;
 775           lex_redirect (optarg);
 776           parser_input = input_defsym;
 777           parsing_defsym = 1;
 778           yyparse ();
 779           parsing_defsym = 0;
 780           lex_string = NULL;
 781           break;
 782         case OPTION_DEMANGLE:
 783           demangling = TRUE;
 784           if (optarg != NULL)
 785             {
 786               enum demangling_styles style;
 787
 788               style = cplus_demangle_name_to_style (optarg);
 789               if (style == unknown_demangling)
 790                 einfo (_("%F%P: unknown demangling style `%s'"),
 791                        optarg);
 792
 793               cplus_demangle_set_style (style);
 794             }
 795           break;
 796         case 'I':               /* Used on Solaris.  */
 797         case OPTION_DYNAMIC_LINKER:
 798           command_line.interpreter = optarg;
 799           break;
 800         case OPTION_SYSROOT:
 801           /* Already handled in ldmain.c.  */
 802           break;
 803         case OPTION_EB:
 804           command_line.endian = ENDIAN_BIG;
 805           break;
 806         case OPTION_EL:
 807           command_line.endian = ENDIAN_LITTLE;
 808           break;
 809         case OPTION_EMBEDDED_RELOCS:
 810           command_line.embedded_relocs = TRUE;
 811           break;
 812         case OPTION_EXPORT_DYNAMIC:
 813         case 'E': /* HP/UX compatibility.  */
 814           link_info.export_dynamic = TRUE;
 815           break;
 816         case 'e':
 817           lang_add_entry (optarg, TRUE);
 818           break;
 819         case 'f':
 820           if (command_line.auxiliary_filters == NULL)
 821             {
 822               command_line.auxiliary_filters = xmalloc (2 * sizeof (char *));
 823               command_line.auxiliary_filters[0] = optarg;
 824               command_line.auxiliary_filters[1] = NULL;
 825             }
 826           else
 827             {
 828               int c;
 829               char **p;
 830
 831               c = 0;
 832               for (p = command_line.auxiliary_filters; *p != NULL; p++)
 833                 ++c;
 834               command_line.auxiliary_filters
 835                 = xrealloc (command_line.auxiliary_filters,
 836                             (c + 2) * sizeof (char *));
 837               command_line.auxiliary_filters[c] = optarg;
 838               command_line.auxiliary_filters[c + 1] = NULL;
 839             }
 840           break;
 841         case 'F':
 842           command_line.filter_shlib = optarg;
 843           break;
 844         case OPTION_FORCE_EXE_SUFFIX:
 845           command_line.force_exe_suffix = TRUE;
 846           break;
 847         case 'G':
 848           {
 849             char *end;
 850             g_switch_value = strtoul (optarg, &end, 0);
 851             if (*end)
 852               einfo (_("%P%F: invalid number `%s'\n"), optarg);
 853           }
 854           break;
 855         case 'g':
 856           /* Ignore.  */
 857           break;
 858         case OPTION_GC_SECTIONS:
 859           link_info.gc_sections = TRUE;
 860           break;
 861         case OPTION_PRINT_GC_SECTIONS:
 862           link_info.print_gc_sections = TRUE;
 863           break;
 864         case OPTION_HELP:
 865           help ();
 866           xexit (0);
 867           break;
 868         case 'L':
 869           ldfile_add_library_path (optarg, TRUE);
 870           break;
 871         case 'l':
 872           lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
 873           break;
 874         case 'M':
 875           config.map_filename = "-";
 876           break;
 877         case 'm':
 878           /* Ignore.  Was handled in a pre-parse.   */
 879           break;
 880         case OPTION_MAP:
 881           config.map_filename = optarg;
 882           break;
 883         case 'N':
 884           config.text_read_only = FALSE;
 885           config.magic_demand_paged = FALSE;
 886           config.dynamic_link = FALSE;
 887           break;
 888         case OPTION_NO_OMAGIC:
 889           config.text_read_only = TRUE;
 890           config.magic_demand_paged = TRUE;
 891           /* NB/ Does not set dynamic_link to TRUE.
 892              Use --call-shared or -Bdynamic for this.  */
 893           break;
 894         case 'n':
 895           config.magic_demand_paged = FALSE;
 896           config.dynamic_link = FALSE;
 897           break;
 898         case OPTION_NO_DEFINE_COMMON:
 899           command_line.inhibit_common_definition = TRUE;
 900           break;
 901         case OPTION_NO_DEMANGLE:
 902           demangling = FALSE;
 903           break;
 904         case OPTION_NO_GC_SECTIONS:
 905           link_info.gc_sections = FALSE;
 906           break;
 907         case OPTION_NO_PRINT_GC_SECTIONS:
 908           link_info.print_gc_sections = FALSE;
 909           break;
 910         case OPTION_NO_KEEP_MEMORY:
 911           link_info.keep_memory = FALSE;
 912           break;
 913         case OPTION_NO_UNDEFINED:
 914           link_info.unresolved_syms_in_objects
 915             = how_to_report_unresolved_symbols;
 916           break;
 917         case OPTION_ALLOW_SHLIB_UNDEFINED:
 918           link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 919           break;
 920         case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
 921           link_info.unresolved_syms_in_shared_libs
 922             = how_to_report_unresolved_symbols;
 923           break;
 924         case OPTION_UNRESOLVED_SYMBOLS:
 925           if (strcmp (optarg, "ignore-all") == 0)
 926             {
 927               link_info.unresolved_syms_in_objects = RM_IGNORE;
 928               link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 929             }
 930           else if (strcmp (optarg, "report-all") == 0)
 931             {
 932               link_info.unresolved_syms_in_objects
 933                 = how_to_report_unresolved_symbols;
 934               link_info.unresolved_syms_in_shared_libs
 935                 = how_to_report_unresolved_symbols;
 936             }
 937           else if (strcmp (optarg, "ignore-in-object-files") == 0)
 938             {
 939               link_info.unresolved_syms_in_objects = RM_IGNORE;
 940               link_info.unresolved_syms_in_shared_libs
 941                 = how_to_report_unresolved_symbols;
 942             }
 943           else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
 944             {
 945               link_info.unresolved_syms_in_objects
 946                 = how_to_report_unresolved_symbols;
 947               link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 948             }
 949           else
 950             einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
 951           break;
 952         case OPTION_WARN_UNRESOLVED_SYMBOLS:
 953           how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
 954           if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
 955             link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
 956           if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
 957             link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
 958           break;
 959
 960         case OPTION_ERROR_UNRESOLVED_SYMBOLS:
 961           how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
 962           if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
 963             link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
 964           if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
 965             link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
 966           break;
 967         case OPTION_ALLOW_MULTIPLE_DEFINITION:
 968           link_info.allow_multiple_definition = TRUE;
 969           break;
 970         case OPTION_NO_UNDEFINED_VERSION:
 971           link_info.allow_undefined_version = FALSE;
 972           break;
 973         case OPTION_DEFAULT_SYMVER:
 974           link_info.create_default_symver = TRUE;
 975           break;
 976         case OPTION_DEFAULT_IMPORTED_SYMVER:
 977           link_info.default_imported_symver = TRUE;
 978           break;
 979         case OPTION_NO_WARN_MISMATCH:
 980           command_line.warn_mismatch = FALSE;
 981           break;
 982         case OPTION_NO_WARN_SEARCH_MISMATCH:
 983           command_line.warn_search_mismatch = FALSE;
 984           break;
 985         case OPTION_NOINHIBIT_EXEC:
 986           force_make_executable = TRUE;
 987           break;
 988         case OPTION_NOSTDLIB:
 989           config.only_cmd_line_lib_dirs = TRUE;
 990           break;
 991         case OPTION_NO_WHOLE_ARCHIVE:
 992           whole_archive = FALSE;
 993           break;
 994         case 'O':
 995           /* FIXME "-O<non-digits> <value>" used to set the address of
 996              section <non-digits>.  Was this for compatibility with
 997              something, or can we create a new option to do that
 998              (with a syntax similar to -defsym)?
 999              getopt can't handle two args to an option without kludges.  */
1000
1001           /* Enable optimizations of output files.  */
1002           link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
1003           break;
1004         case 'o':
1005           lang_add_output (optarg, 0);
1006           break;
1007         case OPTION_OFORMAT:
1008           lang_add_output_format (optarg, NULL, NULL, 0);
1009           break;
1010         case 'q':
1011           link_info.emitrelocations = TRUE;
1012           break;
1013         case 'i':
1014         case 'r':
1015           if (optind == last_optind)
1016             /* This can happen if the user put "-rpath,a" on the command
1017                line.  (Or something similar.  The comma is important).
1018                Getopt becomes confused and thinks that this is a -r option
1019                but it cannot parse the text after the -r so it refuses to
1020                increment the optind counter.  Detect this case and issue
1021                an error message here.  We cannot just make this a warning,
1022                increment optind, and continue because getopt is too confused
1023                and will seg-fault the next time around.  */
1024             einfo(_("%P%F: bad -rpath option\n"));
1025
1026           link_info.relocatable = TRUE;
1027           config.build_constructors = FALSE;
1028           config.magic_demand_paged = FALSE;
1029           config.text_read_only = FALSE;
1030           config.dynamic_link = FALSE;
1031           break;
1032         case 'R':
1033           /* The GNU linker traditionally uses -R to mean to include
1034              only the symbols from a file.  The Solaris linker uses -R
1035              to set the path used by the runtime linker to find
1036              libraries.  This is the GNU linker -rpath argument.  We
1037              try to support both simultaneously by checking the file
1038              named.  If it is a directory, rather than a regular file,
1039              we assume -rpath was meant.  */
1040           {
1041             struct stat s;
1042
1043             if (stat (optarg, &s) >= 0
1044                 && ! S_ISDIR (s.st_mode))
1045               {
1046                 lang_add_input_file (optarg,
1047                                      lang_input_file_is_symbols_only_enum,
1048                                      NULL);
1049                 break;
1050               }
1051           }
1052           /* Fall through.  */
1053         case OPTION_RPATH:
1054           if (command_line.rpath == NULL)
1055             command_line.rpath = xstrdup (optarg);
1056           else
1057             {
1058               size_t rpath_len = strlen (command_line.rpath);
1059               size_t optarg_len = strlen (optarg);
1060               char *buf;
1061               char *cp = command_line.rpath;
1062
1063               /* First see whether OPTARG is already in the path.  */
1064               do
1065                 {
1066                   if (strncmp (optarg, cp, optarg_len) == 0
1067                       && (cp[optarg_len] == 0
1068                           || cp[optarg_len] == config.rpath_separator))
1069                     /* We found it.  */
1070                     break;
1071
1072                   /* Not yet found.  */
1073                   cp = strchr (cp, config.rpath_separator);
1074                   if (cp != NULL)
1075                     ++cp;
1076                 }
1077               while (cp != NULL);
1078
1079               if (cp == NULL)
1080                 {
1081                   buf = xmalloc (rpath_len + optarg_len + 2);
1082                   sprintf (buf, "%s%c%s", command_line.rpath,
1083                            config.rpath_separator, optarg);
1084                   free (command_line.rpath);
1085                   command_line.rpath = buf;
1086                 }
1087             }
1088           break;
1089         case OPTION_RPATH_LINK:
1090           if (command_line.rpath_link == NULL)
1091             command_line.rpath_link = xstrdup (optarg);
1092           else
1093             {
1094               char *buf;
1095
1096               buf = xmalloc (strlen (command_line.rpath_link)
1097                              + strlen (optarg)
1098                              + 2);
1099               sprintf (buf, "%s%c%s", command_line.rpath_link,
1100                        config.rpath_separator, optarg);
1101               free (command_line.rpath_link);
1102               command_line.rpath_link = buf;
1103             }
1104           break;
1105         case OPTION_RELAX:
1106           command_line.relax = TRUE;
1107           break;
1108         case OPTION_RETAIN_SYMBOLS_FILE:
1109           add_keepsyms_file (optarg);
1110           break;
1111         case 'S':
1112           link_info.strip = strip_debugger;
1113           break;
1114         case 's':
1115           link_info.strip = strip_all;
1116           break;
1117         case OPTION_STRIP_DISCARDED:
1118           link_info.strip_discarded = TRUE;
1119           break;
1120         case OPTION_NO_STRIP_DISCARDED:
1121           link_info.strip_discarded = FALSE;
1122           break;
1123         case OPTION_SHARED:
1124           if (config.has_shared)
1125             {
1126               link_info.shared = TRUE;
1127               /* When creating a shared library, the default
1128                  behaviour is to ignore any unresolved references.  */
1129               if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1130                 link_info.unresolved_syms_in_objects = RM_IGNORE;
1131               if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1132                 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1133             }
1134           else
1135             einfo (_("%P%F: -shared not supported\n"));
1136           break;
1137         case OPTION_PIE:
1138           if (config.has_shared)
1139             {
1140               link_info.shared = TRUE;
1141               link_info.pie = TRUE;
1142             }
1143           else
1144             einfo (_("%P%F: -pie not supported\n"));
1145           break;
1146         case 'h':               /* Used on Solaris.  */
1147         case OPTION_SONAME:
1148           command_line.soname = optarg;
1149           break;
1150         case OPTION_SORT_COMMON:
1151           if (optarg == NULL
1152               || strcmp (optarg, N_("descending")) == 0)
1153             config.sort_common = sort_descending;
1154           else if (strcmp (optarg, N_("ascending")) == 0)
1155             config.sort_common = sort_ascending;
1156           else
1157             einfo (_("%P%F: invalid common section sorting option: %s\n"),
1158                    optarg);
1159           break;
1160         case OPTION_SORT_SECTION:
1161           if (strcmp (optarg, N_("name")) == 0)
1162             sort_section = by_name;
1163           else if (strcmp (optarg, N_("alignment")) == 0)
1164             sort_section = by_alignment;
1165           else
1166             einfo (_("%P%F: invalid section sorting option: %s\n"),
1167                    optarg);
1168           break;
1169         case OPTION_STATS:
1170           config.stats = TRUE;
1171           break;
1172         case OPTION_SYMBOLIC:
1173           command_line.symbolic = symbolic;
1174           break;
1175         case OPTION_SYMBOLIC_FUNCTIONS:
1176           command_line.symbolic = symbolic_functions;
1177           break;
1178         case 't':
1179           trace_files = TRUE;
1180           break;
1181         case 'T':
1182           previous_script_handle = saved_script_handle;
1183           ldfile_open_command_file (optarg);
1184           parser_input = input_script;
1185           yyparse ();
1186           previous_script_handle = NULL;
1187           break;
1188         case OPTION_DEFAULT_SCRIPT:
1189           command_line.default_script = optarg;
1190           break;
1191         case OPTION_SECTION_START:
1192           {
1193             char *optarg2;
1194             char *sec_name;
1195             int len;
1196
1197             /* Check for <something>=<somthing>...  */
1198             optarg2 = strchr (optarg, '=');
1199             if (optarg2 == NULL)
1200               einfo (_("%P%F: invalid argument to option"
1201                        " \"--section-start\"\n"));
1202
1203             optarg2++;
1204
1205             /* So far so good.  Are all the args present?  */
1206             if ((*optarg == '\0') || (*optarg2 == '\0'))
1207               einfo (_("%P%F: missing argument(s) to option"
1208                        " \"--section-start\"\n"));
1209
1210             /* We must copy the section name as set_section_start
1211                doesn't do it for us.  */
1212             len = optarg2 - optarg;
1213             sec_name = xmalloc (len);
1214             memcpy (sec_name, optarg, len - 1);
1215             sec_name[len - 1] = 0;
1216
1217             /* Then set it...  */
1218             set_section_start (sec_name, optarg2);
1219           }
1220           break;
1221         case OPTION_TARGET_HELP:
1222           /* Mention any target specific options.  */
1223           ldemul_list_emulation_options (stdout);
1224           exit (0);
1225         case OPTION_TBSS:
1226           set_segment_start (".bss", optarg);
1227           break;
1228         case OPTION_TDATA:
1229           set_segment_start (".data", optarg);
1230           break;
1231         case OPTION_TTEXT:
1232           set_segment_start (".text", optarg);
1233           break;
1234         case OPTION_TRADITIONAL_FORMAT:
1235           link_info.traditional_format = TRUE;
1236           break;
1237         case OPTION_TASK_LINK:
1238           link_info.task_link = TRUE;
1239           /* Fall through - do an implied -r option.  */
1240         case OPTION_UR:
1241           link_info.relocatable = TRUE;
1242           config.build_constructors = TRUE;
1243           config.magic_demand_paged = FALSE;
1244           config.text_read_only = FALSE;
1245           config.dynamic_link = FALSE;
1246           break;
1247         case 'u':
1248           ldlang_add_undef (optarg);
1249           break;
1250         case OPTION_UNIQUE:
1251           if (optarg != NULL)
1252             lang_add_unique (optarg);
1253           else
1254             config.unique_orphan_sections = TRUE;
1255           break;
1256         case OPTION_VERBOSE:
1257           ldversion (1);
1258           version_printed = TRUE;
1259           trace_file_tries = TRUE;
1260           overflow_cutoff_limit = -2;
1261           break;
1262         case 'v':
1263           ldversion (0);
1264           version_printed = TRUE;
1265           break;
1266         case 'V':
1267           ldversion (1);
1268           version_printed = TRUE;
1269           break;
1270         case OPTION_VERSION:
1271           ldversion (2);
1272           xexit (0);
1273           break;
1274         case OPTION_VERSION_SCRIPT:
1275           /* This option indicates a small script that only specifies
1276              version information.  Read it, but don't assume that
1277              we've seen a linker script.  */
1278           {
1279             FILE *hold_script_handle;
1280
1281             hold_script_handle = saved_script_handle;
1282             ldfile_open_command_file (optarg);
1283             saved_script_handle = hold_script_handle;
1284             parser_input = input_version_script;
1285             yyparse ();
1286           }
1287           break;
1288         case OPTION_VERSION_EXPORTS_SECTION:
1289           /* This option records a version symbol to be applied to the
1290              symbols listed for export to be found in the object files
1291              .exports sections.  */
1292           command_line.version_exports_section = optarg;
1293           break;
1294         case OPTION_DYNAMIC_LIST_DATA:
1295           command_line.dynamic_list = dynamic_list_data;
1296           if (command_line.symbolic == symbolic)
1297             command_line.symbolic = symbolic_unset;
1298           break;
1299         case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1300           lang_append_dynamic_list_cpp_typeinfo ();
1301           if (command_line.dynamic_list != dynamic_list_data)
1302             command_line.dynamic_list = dynamic_list;
1303           if (command_line.symbolic == symbolic)
1304             command_line.symbolic = symbolic_unset;
1305           break;
1306         case OPTION_DYNAMIC_LIST_CPP_NEW:
1307           lang_append_dynamic_list_cpp_new ();
1308           if (command_line.dynamic_list != dynamic_list_data)
1309             command_line.dynamic_list = dynamic_list;
1310           if (command_line.symbolic == symbolic)
1311             command_line.symbolic = symbolic_unset;
1312           break;
1313         case OPTION_DYNAMIC_LIST:
1314           /* This option indicates a small script that only specifies
1315              a dynamic list.  Read it, but don't assume that we've
1316              seen a linker script.  */
1317           {
1318             FILE *hold_script_handle;
1319
1320             hold_script_handle = saved_script_handle;
1321             ldfile_open_command_file (optarg);
1322             saved_script_handle = hold_script_handle;
1323             parser_input = input_dynamic_list;
1324             yyparse ();
1325           }
1326           if (command_line.dynamic_list != dynamic_list_data)
1327             command_line.dynamic_list = dynamic_list;
1328           if (command_line.symbolic == symbolic)
1329             command_line.symbolic = symbolic_unset;
1330           break;
1331         case OPTION_WARN_COMMON:
1332           config.warn_common = TRUE;
1333           break;
1334         case OPTION_WARN_CONSTRUCTORS:
1335           config.warn_constructors = TRUE;
1336           break;
1337         case OPTION_WARN_FATAL:
1338           config.fatal_warnings = TRUE;
1339           break;
1340         case OPTION_NO_WARN_FATAL:
1341           config.fatal_warnings = FALSE;
1342           break;
1343         case OPTION_WARN_MULTIPLE_GP:
1344           config.warn_multiple_gp = TRUE;
1345           break;
1346         case OPTION_WARN_ONCE:
1347           config.warn_once = TRUE;
1348           break;
1349         case OPTION_WARN_SECTION_ALIGN:
1350           config.warn_section_align = TRUE;
1351           break;
1352         case OPTION_WARN_SHARED_TEXTREL:
1353           link_info.warn_shared_textrel = TRUE;
1354           break;
1355         case OPTION_WHOLE_ARCHIVE:
1356           whole_archive = TRUE;
1357           break;
1358         case OPTION_ADD_NEEDED:
1359           add_needed = TRUE;
1360           break;
1361         case OPTION_NO_ADD_NEEDED:
1362           add_needed = FALSE;
1363           break;
1364         case OPTION_AS_NEEDED:
1365           as_needed = TRUE;
1366           break;
1367         case OPTION_NO_AS_NEEDED:
1368           as_needed = FALSE;
1369           break;
1370         case OPTION_WRAP:
1371           add_wrap (optarg);
1372           break;
1373         case OPTION_DISCARD_NONE:
1374           link_info.discard = discard_none;
1375           break;
1376         case 'X':
1377           link_info.discard = discard_l;
1378           break;
1379         case 'x':
1380           link_info.discard = discard_all;
1381           break;
1382         case 'Y':
1383           if (CONST_STRNEQ (optarg, "P,"))
1384             optarg += 2;
1385           if (default_dirlist != NULL)
1386             free (default_dirlist);
1387           default_dirlist = xstrdup (optarg);
1388           break;
1389         case 'y':
1390           add_ysym (optarg);
1391           break;
1392         case OPTION_SPARE_DYNAMIC_TAGS:
1393           link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1394           break;
1395         case OPTION_SPLIT_BY_RELOC:
1396           if (optarg != NULL)
1397             config.split_by_reloc = strtoul (optarg, NULL, 0);
1398           else
1399             config.split_by_reloc = 32768;
1400           break;
1401         case OPTION_SPLIT_BY_FILE:
1402           if (optarg != NULL)
1403             config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1404           else
1405             config.split_by_file = 1;
1406           break;
1407         case OPTION_CHECK_SECTIONS:
1408           command_line.check_section_addresses = TRUE;
1409           break;
1410         case OPTION_NO_CHECK_SECTIONS:
1411           command_line.check_section_addresses = FALSE;
1412           break;
1413         case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1414           command_line.accept_unknown_input_arch = TRUE;
1415           break;
1416         case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1417           command_line.accept_unknown_input_arch = FALSE;
1418           break;
1419         case '(':
1420           if (ingroup)
1421             einfo (_("%P%F: may not nest groups (--help for usage)\n"));
1422
1423           lang_enter_group ();
1424           ingroup = 1;
1425           break;
1426         case ')':
1427           if (! ingroup)
1428             einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1429
1430           lang_leave_group ();
1431           ingroup = 0;
1432           break;
1433
1434         case OPTION_INIT:
1435           link_info.init_function = optarg;
1436           break;
1437
1438         case OPTION_FINI:
1439           link_info.fini_function = optarg;
1440           break;
1441
1442         case OPTION_REDUCE_MEMORY_OVERHEADS:
1443           link_info.reduce_memory_overheads = TRUE;
1444           if (config.hash_table_size == 0)
1445             config.hash_table_size = 1021;
1446           break;
1447
1448         case OPTION_HASH_SIZE:
1449           {
1450             bfd_size_type new_size;
1451
1452             new_size = strtoul (optarg, NULL, 0);
1453             if (new_size)
1454               config.hash_table_size = new_size;
1455             else
1456               einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1457           }
1458           break;
1459         }
1460     }
1461
1462   if (ingroup)
1463     lang_leave_group ();
1464
1465   if (default_dirlist != NULL)
1466     {
1467       set_default_dirlist (default_dirlist);
1468       free (default_dirlist);
1469     }
1470
1471   if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1472     /* FIXME: Should we allow emulations a chance to set this ?  */
1473     link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1474
1475   if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1476     /* FIXME: Should we allow emulations a chance to set this ?  */
1477     link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1478 }
1479
1480 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1481    library search path.  */
1482
1483 static void
1484 set_default_dirlist (char *dirlist_ptr)
1485 {
1486   char *p;
1487
1488   while (1)
1489     {
1490       p = strchr (dirlist_ptr, PATH_SEPARATOR);
1491       if (p != NULL)
1492         *p = '\0';
1493       if (*dirlist_ptr != '\0')
1494         ldfile_add_library_path (dirlist_ptr, TRUE);
1495       if (p == NULL)
1496         break;
1497       dirlist_ptr = p + 1;
1498     }
1499 }
1500
1501 static void
1502 set_section_start (char *sect, char *valstr)
1503 {
1504   const char *end;
1505   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1506   if (*end)
1507     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1508   lang_section_start (sect, exp_intop (val), NULL);
1509 }
1510
1511 static void
1512 set_segment_start (const char *section, char *valstr)
1513 {
1514   const char *name;
1515   const char *end;
1516   segment_type *seg;
1517
1518   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1519   if (*end)
1520     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1521   /* If we already have an entry for this segment, update the existing
1522      value.  */
1523   name = section + 1;
1524   for (seg = segments; seg; seg = seg->next)
1525     if (strcmp (seg->name, name) == 0)
1526       {
1527         seg->value = val;
1528         return;
1529       }
1530   /* There was no existing value so we must create a new segment
1531      entry.  */
1532   seg = stat_alloc (sizeof (*seg));
1533   seg->name = name;
1534   seg->value = val;
1535   seg->used = FALSE;
1536   /* Add it to the linked list of segments.  */
1537   seg->next = segments;
1538   segments = seg;
1539   /* Historically, -Ttext and friends set the base address of a
1540      particular section.  For backwards compatibility, we still do
1541      that.  If a SEGMENT_START directive is seen, the section address
1542      assignment will be disabled.  */
1543   lang_section_start (section, exp_intop (val), seg);
1544 }
1545
1546 \f
1547 /* Print help messages for the options.  */
1548
1549 static void
1550 help (void)
1551 {
1552   unsigned i;
1553   const char **targets, **pp;
1554   int len;
1555
1556   printf (_("Usage: %s [options] file...\n"), program_name);
1557
1558   printf (_("Options:\n"));
1559   for (i = 0; i < OPTION_COUNT; i++)
1560     {
1561       if (ld_options[i].doc != NULL)
1562         {
1563           bfd_boolean comma;
1564           unsigned j;
1565
1566           printf ("  ");
1567
1568           comma = FALSE;
1569           len = 2;
1570
1571           j = i;
1572           do
1573             {
1574               if (ld_options[j].shortopt != '\0'
1575                   && ld_options[j].control != NO_HELP)
1576                 {
1577                   printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1578                   len += (comma ? 2 : 0) + 2;
1579                   if (ld_options[j].arg != NULL)
1580                     {
1581                       if (ld_options[j].opt.has_arg != optional_argument)
1582                         {
1583                           printf (" ");
1584                           ++len;
1585                         }
1586                       printf ("%s", _(ld_options[j].arg));
1587                       len += strlen (_(ld_options[j].arg));
1588                     }
1589                   comma = TRUE;
1590                 }
1591               ++j;
1592             }
1593           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1594
1595           j = i;
1596           do
1597             {
1598               if (ld_options[j].opt.name != NULL
1599                   && ld_options[j].control != NO_HELP)
1600                 {
1601                   int two_dashes =
1602                     (ld_options[j].control == TWO_DASHES
1603                      || ld_options[j].control == EXACTLY_TWO_DASHES);
1604
1605                   printf ("%s-%s%s",
1606                           comma ? ", " : "",
1607                           two_dashes ? "-" : "",
1608                           ld_options[j].opt.name);
1609                   len += ((comma ? 2 : 0)
1610                           + 1
1611                           + (two_dashes ? 1 : 0)
1612                           + strlen (ld_options[j].opt.name));
1613                   if (ld_options[j].arg != NULL)
1614                     {
1615                       printf (" %s", _(ld_options[j].arg));
1616                       len += 1 + strlen (_(ld_options[j].arg));
1617                     }
1618                   comma = TRUE;
1619                 }
1620               ++j;
1621             }
1622           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1623
1624           if (len >= 30)
1625             {
1626               printf ("\n");
1627               len = 0;
1628             }
1629
1630           for (; len < 30; len++)
1631             putchar (' ');
1632
1633           printf ("%s\n", _(ld_options[i].doc));
1634         }
1635     }
1636   printf (_("  @FILE"));
1637   for (len = strlen ("  @FILE"); len < 30; len++)
1638     putchar (' ');
1639   printf (_("Read options from FILE\n"));
1640
1641   /* Note: Various tools (such as libtool) depend upon the
1642      format of the listings below - do not change them.  */
1643   /* xgettext:c-format */
1644   printf (_("%s: supported targets:"), program_name);
1645   targets = bfd_target_list ();
1646   for (pp = targets; *pp != NULL; pp++)
1647     printf (" %s", *pp);
1648   free (targets);
1649   printf ("\n");
1650
1651   /* xgettext:c-format */
1652   printf (_("%s: supported emulations: "), program_name);
1653   ldemul_list_emulations (stdout);
1654   printf ("\n");
1655
1656   /* xgettext:c-format */
1657   printf (_("%s: emulation specific options:\n"), program_name);
1658   ldemul_list_emulation_options (stdout);
1659   printf ("\n");
1660
1661   if (REPORT_BUGS_TO[0])
1662     printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
1663 }