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, 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
  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_NO_EXPORT_DYNAMIC,
  81   OPTION_HELP,
  82   OPTION_IGNORE,
  83   OPTION_MAP,
  84   OPTION_NO_DEMANGLE,
  85   OPTION_NO_KEEP_MEMORY,
  86   OPTION_NO_WARN_MISMATCH,
  87   OPTION_NO_WARN_SEARCH_MISMATCH,
  88   OPTION_NOINHIBIT_EXEC,
  89   OPTION_NON_SHARED,
  90   OPTION_NO_WHOLE_ARCHIVE,
  91   OPTION_OFORMAT,
  92   OPTION_RELAX,
  93   OPTION_RETAIN_SYMBOLS_FILE,
  94   OPTION_RPATH,
  95   OPTION_RPATH_LINK,
  96   OPTION_SHARED,
  97   OPTION_SONAME,
  98   OPTION_SORT_COMMON,
  99   OPTION_SORT_SECTION,
 100   OPTION_STATS,
 101   OPTION_SYMBOLIC,
 102   OPTION_SYMBOLIC_FUNCTIONS,
 103   OPTION_TASK_LINK,
 104   OPTION_TBSS,
 105   OPTION_TDATA,
 106   OPTION_TTEXT,
 107   OPTION_TTEXT_SEGMENT,
 108   OPTION_TRADITIONAL_FORMAT,
 109   OPTION_UR,
 110   OPTION_VERBOSE,
 111   OPTION_VERSION,
 112   OPTION_VERSION_SCRIPT,
 113   OPTION_VERSION_EXPORTS_SECTION,
 114   OPTION_DYNAMIC_LIST,
 115   OPTION_DYNAMIC_LIST_CPP_NEW,
 116   OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
 117   OPTION_DYNAMIC_LIST_DATA,
 118   OPTION_WARN_COMMON,
 119   OPTION_WARN_CONSTRUCTORS,
 120   OPTION_WARN_FATAL,
 121   OPTION_NO_WARN_FATAL,
 122   OPTION_WARN_MULTIPLE_GP,
 123   OPTION_WARN_ONCE,
 124   OPTION_WARN_SECTION_ALIGN,
 125   OPTION_SPLIT_BY_RELOC,
 126   OPTION_SPLIT_BY_FILE ,
 127   OPTION_WHOLE_ARCHIVE,
 128   OPTION_ADD_NEEDED,
 129   OPTION_NO_ADD_NEEDED,
 130   OPTION_AS_NEEDED,
 131   OPTION_NO_AS_NEEDED,
 132   OPTION_WRAP,
 133   OPTION_FORCE_EXE_SUFFIX,
 134   OPTION_GC_SECTIONS,
 135   OPTION_NO_GC_SECTIONS,
 136   OPTION_PRINT_GC_SECTIONS,
 137   OPTION_NO_PRINT_GC_SECTIONS,
 138   OPTION_HASH_SIZE,
 139   OPTION_CHECK_SECTIONS,
 140   OPTION_NO_CHECK_SECTIONS,
 141   OPTION_NO_UNDEFINED,
 142   OPTION_INIT,
 143   OPTION_FINI,
 144   OPTION_SECTION_START,
 145   OPTION_UNIQUE,
 146   OPTION_TARGET_HELP,
 147   OPTION_ALLOW_SHLIB_UNDEFINED,
 148   OPTION_NO_ALLOW_SHLIB_UNDEFINED,
 149   OPTION_ALLOW_MULTIPLE_DEFINITION,
 150   OPTION_NO_UNDEFINED_VERSION,
 151   OPTION_DEFAULT_SYMVER,
 152   OPTION_DEFAULT_IMPORTED_SYMVER,
 153   OPTION_DISCARD_NONE,
 154   OPTION_SPARE_DYNAMIC_TAGS,
 155   OPTION_NO_DEFINE_COMMON,
 156   OPTION_NOSTDLIB,
 157   OPTION_NO_OMAGIC,
 158   OPTION_STRIP_DISCARDED,
 159   OPTION_NO_STRIP_DISCARDED,
 160   OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
 161   OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
 162   OPTION_PIE,
 163   OPTION_UNRESOLVED_SYMBOLS,
 164   OPTION_WARN_UNRESOLVED_SYMBOLS,
 165   OPTION_ERROR_UNRESOLVED_SYMBOLS,
 166   OPTION_WARN_SHARED_TEXTREL,
 167   OPTION_WARN_ALTERNATE_EM,
 168   OPTION_REDUCE_MEMORY_OVERHEADS,
 169   OPTION_DEFAULT_SCRIPT
 170 };
 171
 172 /* The long options.  This structure is used for both the option
 173    parsing and the help text.  */
 174
 175 struct ld_option
 176 {
 177   /* The long option information.  */
 178   struct option opt;
 179   /* The short option with the same meaning ('\0' if none).  */
 180   char shortopt;
 181   /* The name of the argument (NULL if none).  */
 182   const char *arg;
 183   /* The documentation string.  If this is NULL, this is a synonym for
 184      the previous option.  */
 185   const char *doc;
 186   enum {
 187     /* Use one dash before long option name.  */
 188     ONE_DASH,
 189     /* Use two dashes before long option name.  */
 190     TWO_DASHES,
 191     /* Only accept two dashes before the long option name.
 192        This is an overloading of the use of this enum, since originally it
 193        was only intended to tell the --help display function how to display
 194        the long option name.  This feature was added in order to resolve
 195        the confusion about the -omagic command line switch.  Is it setting
 196        the output file name to "magic" or is it setting the NMAGIC flag on
 197        the output ?  It has been decided that it is setting the output file
 198        name, and that if you want to set the NMAGIC flag you should use -N
 199        or --omagic.  */
 200     EXACTLY_TWO_DASHES,
 201     /* Don't mention this option in --help output.  */
 202     NO_HELP
 203   } control;
 204 };
 205
 206 static const struct ld_option ld_options[] =
 207 {
 208   { {NULL, required_argument, NULL, '\0'},
 209     'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
 210     ONE_DASH },
 211   { {"architecture", required_argument, NULL, 'A'},
 212     'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
 213   { {"format", required_argument, NULL, 'b'},
 214     'b', N_("TARGET"), N_("Specify target for following input files"),
 215     TWO_DASHES },
 216   { {"mri-script", required_argument, NULL, 'c'},
 217     'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
 218   { {"dc", no_argument, NULL, 'd'},
 219     'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
 220   { {"dp", no_argument, NULL, 'd'},
 221     '\0', NULL, NULL, ONE_DASH },
 222   { {"entry", required_argument, NULL, 'e'},
 223     'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
 224   { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
 225     'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
 226   { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
 227     '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
 228   { {"EB", no_argument, NULL, OPTION_EB},
 229     '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
 230   { {"EL", no_argument, NULL, OPTION_EL},
 231     '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
 232   { {"auxiliary", required_argument, NULL, 'f'},
 233     'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
 234     TWO_DASHES },
 235   { {"filter", required_argument, NULL, 'F'},
 236     'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
 237     TWO_DASHES },
 238   { {NULL, no_argument, NULL, '\0'},
 239     'g', NULL, N_("Ignored"), ONE_DASH },
 240   { {"gpsize", required_argument, NULL, 'G'},
 241     'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
 242     TWO_DASHES },
 243   { {"soname", required_argument, NULL, OPTION_SONAME},
 244     'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
 245   { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
 246     'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
 247     TWO_DASHES },
 248   { {"library", required_argument, NULL, 'l'},
 249     'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
 250   { {"library-path", required_argument, NULL, 'L'},
 251     'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
 252     TWO_DASHES },
 253   { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
 254     '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
 255   { {NULL, required_argument, NULL, '\0'},
 256     'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
 257   { {"print-map", no_argument, NULL, 'M'},
 258     'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
 259   { {"nmagic", no_argument, NULL, 'n'},
 260     'n', NULL, N_("Do not page align data"), TWO_DASHES },
 261   { {"omagic", no_argument, NULL, 'N'},
 262     'N', NULL, N_("Do not page align data, do not make text readonly"),
 263     EXACTLY_TWO_DASHES },
 264   { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
 265     '\0', NULL, N_("Page align data, make text readonly"),
 266     EXACTLY_TWO_DASHES },
 267   { {"output", required_argument, NULL, 'o'},
 268     'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
 269   { {NULL, required_argument, NULL, '\0'},
 270     'O', NULL, N_("Optimize output file"), ONE_DASH },
 271   { {"Qy", no_argument, NULL, OPTION_IGNORE},
 272     '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
 273   { {"emit-relocs", no_argument, NULL, 'q'},
 274     'q', NULL, "Generate relocations in final output", TWO_DASHES },
 275   { {"relocatable", no_argument, NULL, 'r'},
 276     'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
 277   { {NULL, no_argument, NULL, '\0'},
 278     'i', NULL, NULL, ONE_DASH },
 279   { {"just-symbols", required_argument, NULL, 'R'},
 280     'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
 281     TWO_DASHES },
 282   { {"strip-all", no_argument, NULL, 's'},
 283     's', NULL, N_("Strip all symbols"), TWO_DASHES },
 284   { {"strip-debug", no_argument, NULL, 'S'},
 285     'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
 286   { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
 287     '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
 288   { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
 289     '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
 290   { {"trace", no_argument, NULL, 't'},
 291     't', NULL, N_("Trace file opens"), TWO_DASHES },
 292   { {"script", required_argument, NULL, 'T'},
 293     'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
 294   { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
 295     '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
 296   { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
 297     '\0', NULL, NULL, ONE_DASH },
 298   { {"undefined", required_argument, NULL, 'u'},
 299     'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
 300     TWO_DASHES },
 301   { {"unique", optional_argument, NULL, OPTION_UNIQUE},
 302     '\0', N_("[=SECTION]"),
 303     N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
 304   { {"Ur", no_argument, NULL, OPTION_UR},
 305     '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
 306   { {"version", no_argument, NULL, OPTION_VERSION},
 307     'v', NULL, N_("Print version information"), TWO_DASHES },
 308   { {NULL, no_argument, NULL, '\0'},
 309     'V', NULL, N_("Print version and emulation information"), ONE_DASH },
 310   { {"discard-all", no_argument, NULL, 'x'},
 311     'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
 312   { {"discard-locals", no_argument, NULL, 'X'},
 313     'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
 314   { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
 315     '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
 316   { {"trace-symbol", required_argument, NULL, 'y'},
 317     'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
 318   { {NULL, required_argument, NULL, '\0'},
 319     'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
 320     ONE_DASH },
 321   { {"start-group", no_argument, NULL, '('},
 322     '(', NULL, N_("Start a group"), TWO_DASHES },
 323   { {"end-group", no_argument, NULL, ')'},
 324     ')', NULL, N_("End a group"), TWO_DASHES },
 325   { {"accept-unknown-input-arch", no_argument, NULL,
 326      OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
 327     '\0', NULL,
 328     N_("Accept input files whose architecture cannot be determined"),
 329     TWO_DASHES },
 330   { {"no-accept-unknown-input-arch", no_argument, NULL,
 331      OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
 332     '\0', NULL, N_("Reject input files whose architecture is unknown"),
 333     TWO_DASHES },
 334   { {"add-needed", no_argument, NULL, OPTION_ADD_NEEDED},
 335     '\0', NULL, N_("Set DT_NEEDED tags for DT_NEEDED entries in\n"
 336                    "                                following dynamic libs"),
 337     TWO_DASHES },
 338   { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_NEEDED},
 339     '\0', NULL, N_("Do not set DT_NEEDED tags for DT_NEEDED entries\n"
 340                    "                                in following dynamic libs"),
 341     TWO_DASHES },
 342   { {"as-needed", no_argument, NULL, OPTION_AS_NEEDED},
 343     '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
 344     TWO_DASHES },
 345   { {"no-as-needed", no_argument, NULL, OPTION_NO_AS_NEEDED},
 346     '\0', NULL, N_("Always set DT_NEEDED for following dynamic libs"),
 347     TWO_DASHES },
 348   { {"assert", required_argument, NULL, OPTION_ASSERT},
 349     '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
 350   { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
 351     '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
 352   { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
 353     '\0', NULL, NULL, ONE_DASH },
 354   { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
 355     '\0', NULL, NULL, ONE_DASH },
 356   { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
 357     '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
 358   { {"dn", no_argument, NULL, OPTION_NON_SHARED},
 359     '\0', NULL, NULL, ONE_DASH },
 360   { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
 361     '\0', NULL, NULL, ONE_DASH },
 362   { {"static", no_argument, NULL, OPTION_NON_SHARED},
 363     '\0', NULL, NULL, ONE_DASH },
 364   { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
 365     '\0', NULL, N_("Bind global references locally"), ONE_DASH },
 366   { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
 367     '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
 368   { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
 369     '\0', NULL, N_("Check section addresses for overlaps (default)"),
 370     TWO_DASHES },
 371   { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
 372     '\0', NULL, N_("Do not check section addresses for overlaps"),
 373     TWO_DASHES },
 374   { {"cref", no_argument, NULL, OPTION_CREF},
 375     '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
 376   { {"defsym", required_argument, NULL, OPTION_DEFSYM},
 377     '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
 378   { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
 379     '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
 380     TWO_DASHES },
 381   { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
 382     '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
 383   { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
 384     '\0', NULL, N_("Treat warnings as errors"),
 385     TWO_DASHES },
 386   { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
 387     '\0', NULL, N_("Do not treat warnings as errors (default)"),
 388     TWO_DASHES },
 389   { {"fini", required_argument, NULL, OPTION_FINI},
 390     '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
 391   { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
 392     '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
 393   { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
 394     '\0', NULL, N_("Remove unused sections (on some targets)"),
 395     TWO_DASHES },
 396   { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
 397     '\0', NULL, N_("Don't remove unused sections (default)"),
 398     TWO_DASHES },
 399   { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
 400     '\0', NULL, N_("List removed unused sections on stderr"),
 401     TWO_DASHES },
 402   { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
 403     '\0', NULL, N_("Do not list removed unused sections"),
 404     TWO_DASHES },
 405   { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
 406     '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
 407     TWO_DASHES },
 408   { {"help", no_argument, NULL, OPTION_HELP},
 409     '\0', NULL, N_("Print option help"), TWO_DASHES },
 410   { {"init", required_argument, NULL, OPTION_INIT},
 411     '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
 412   { {"Map", required_argument, NULL, OPTION_MAP},
 413     '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
 414   { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
 415     '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
 416   { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
 417     '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
 418   { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
 419     '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
 420   { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
 421     '\0', NULL, N_("Do not allow unresolved references in object files"),
 422     TWO_DASHES },
 423   { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
 424     '\0', NULL, N_("Allow unresolved references in shared libaries"),
 425     TWO_DASHES },
 426   { {"no-allow-shlib-undefined", no_argument, NULL,
 427      OPTION_NO_ALLOW_SHLIB_UNDEFINED},
 428     '\0', NULL, N_("Do not allow unresolved references in shared libs"),
 429     TWO_DASHES },
 430   { {"allow-multiple-definition", no_argument, NULL,
 431      OPTION_ALLOW_MULTIPLE_DEFINITION},
 432     '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
 433   { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
 434     '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
 435   { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
 436     '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
 437   { {"default-imported-symver", no_argument, NULL,
 438       OPTION_DEFAULT_IMPORTED_SYMVER},
 439     '\0', NULL, N_("Create default symbol version for imported symbols"),
 440     TWO_DASHES },
 441   { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
 442     '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
 443   { {"no-warn-search-mismatch", no_argument, NULL,
 444      OPTION_NO_WARN_SEARCH_MISMATCH},
 445     '\0', NULL, N_("Don't warn on finding an incompatible library"),
 446     TWO_DASHES},
 447   { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
 448     '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
 449   { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 450     '\0', NULL, N_("Create an output file even if errors occur"),
 451     TWO_DASHES },
 452   { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 453     '\0', NULL, NULL, NO_HELP },
 454   { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
 455     '\0', NULL, N_("Only use library directories specified on\n"
 456                    "                                the command line"),
 457     ONE_DASH },
 458   { {"oformat", required_argument, NULL, OPTION_OFORMAT},
 459     '\0', N_("TARGET"), N_("Specify target of output file"),
 460     EXACTLY_TWO_DASHES },
 461   { {"qmagic", no_argument, NULL, OPTION_IGNORE},
 462     '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
 463   { {"reduce-memory-overheads", no_argument, NULL,
 464      OPTION_REDUCE_MEMORY_OVERHEADS},
 465     '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
 466     TWO_DASHES },
 467   { {"relax", no_argument, NULL, OPTION_RELAX},
 468     '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES },
 469   { {"retain-symbols-file", required_argument, NULL,
 470      OPTION_RETAIN_SYMBOLS_FILE},
 471     '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
 472   { {"rpath", required_argument, NULL, OPTION_RPATH},
 473     '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
 474   { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
 475     '\0', N_("PATH"), N_("Set link time shared library search path"),
 476     ONE_DASH },
 477   { {"shared", no_argument, NULL, OPTION_SHARED},
 478     '\0', NULL, N_("Create a shared library"), ONE_DASH },
 479   { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD.  */
 480     '\0', NULL, NULL, ONE_DASH },
 481   { {"pie", no_argument, NULL, OPTION_PIE},
 482     '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
 483   { {"pic-executable", no_argument, NULL, OPTION_PIE},
 484     '\0', NULL, NULL, TWO_DASHES },
 485   { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
 486     '\0', N_("[=ascending|descending]"),
 487     N_("Sort common symbols by alignment [in specified order]"),
 488     TWO_DASHES },
 489   { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
 490     '\0', NULL, NULL, NO_HELP },
 491   { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
 492     '\0', N_("name|alignment"),
 493     N_("Sort sections by name or maximum alignment"), TWO_DASHES },
 494   { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
 495     '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
 496     TWO_DASHES },
 497   { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
 498     '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
 499     TWO_DASHES },
 500   { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
 501     '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
 502     TWO_DASHES },
 503   { {"stats", no_argument, NULL, OPTION_STATS},
 504     '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
 505   { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
 506     '\0', NULL, N_("Display target specific options"), TWO_DASHES },
 507   { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
 508     '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
 509   { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
 510     '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
 511   { {"section-start", required_argument, NULL, OPTION_SECTION_START},
 512     '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
 513     TWO_DASHES },
 514   { {"Tbss", required_argument, NULL, OPTION_TBSS},
 515     '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
 516   { {"Tdata", required_argument, NULL, OPTION_TDATA},
 517     '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
 518   { {"Ttext", required_argument, NULL, OPTION_TTEXT},
 519     '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
 520   { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT},
 521     '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
 522   { {"unresolved-symbols=<method>", required_argument, NULL,
 523      OPTION_UNRESOLVED_SYMBOLS},
 524     '\0', NULL, N_("How to handle unresolved symbols.  <method> is:\n"
 525                    "                                ignore-all, report-all, ignore-in-object-files,\n"
 526                    "                                ignore-in-shared-libs"),
 527     TWO_DASHES },
 528   { {"verbose", no_argument, NULL, OPTION_VERBOSE},
 529     '\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
 530   { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux.  */
 531     '\0', NULL, NULL, NO_HELP },
 532   { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
 533     '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
 534   { {"version-exports-section", required_argument, NULL,
 535      OPTION_VERSION_EXPORTS_SECTION },
 536     '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
 537                            "                                SYMBOL as the version."),
 538     TWO_DASHES },
 539   { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
 540     '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
 541   { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
 542     '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
 543   { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
 544     '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
 545   { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
 546     '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
 547   { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
 548     '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
 549   { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
 550     '\0', NULL, N_("Warn if global constructors/destructors are seen"),
 551     TWO_DASHES },
 552   { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
 553     '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
 554   { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
 555     '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
 556   { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
 557     '\0', NULL, N_("Warn if start of section changes due to alignment"),
 558     TWO_DASHES },
 559   { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
 560     '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
 561     TWO_DASHES },
 562   { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
 563     '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
 564     TWO_DASHES },
 565   { {"warn-unresolved-symbols", no_argument, NULL,
 566      OPTION_WARN_UNRESOLVED_SYMBOLS},
 567     '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
 568   { {"error-unresolved-symbols", no_argument, NULL,
 569      OPTION_ERROR_UNRESOLVED_SYMBOLS},
 570     '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
 571   { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
 572     '\0', NULL, N_("Include all objects from following archives"),
 573     TWO_DASHES },
 574   { {"wrap", required_argument, NULL, OPTION_WRAP},
 575     '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
 576 };
 577
 578 #define OPTION_COUNT ARRAY_SIZE (ld_options)
 579
 580 void
 581 parse_args (unsigned argc, char **argv)
 582 {
 583   unsigned i;
 584   int is, il, irl;
 585   int ingroup = 0;
 586   char *default_dirlist = NULL;
 587   char *shortopts;
 588   struct option *longopts;
 589   struct option *really_longopts;
 590   int last_optind;
 591   enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
 592
 593   shortopts = xmalloc (OPTION_COUNT * 3 + 2);
 594   longopts = xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
 595   really_longopts = xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
 596
 597   /* Starting the short option string with '-' is for programs that
 598      expect options and other ARGV-elements in any order and that care about
 599      the ordering of the two.  We describe each non-option ARGV-element
 600      as if it were the argument of an option with character code 1.  */
 601   shortopts[0] = '-';
 602   is = 1;
 603   il = 0;
 604   irl = 0;
 605   for (i = 0; i < OPTION_COUNT; i++)
 606     {
 607       if (ld_options[i].shortopt != '\0')
 608         {
 609           shortopts[is] = ld_options[i].shortopt;
 610           ++is;
 611           if (ld_options[i].opt.has_arg == required_argument
 612               || ld_options[i].opt.has_arg == optional_argument)
 613             {
 614               shortopts[is] = ':';
 615               ++is;
 616               if (ld_options[i].opt.has_arg == optional_argument)
 617                 {
 618                   shortopts[is] = ':';
 619                   ++is;
 620                 }
 621             }
 622         }
 623       if (ld_options[i].opt.name != NULL)
 624         {
 625           if (ld_options[i].control == EXACTLY_TWO_DASHES)
 626             {
 627               really_longopts[irl] = ld_options[i].opt;
 628               ++irl;
 629             }
 630           else
 631             {
 632               longopts[il] = ld_options[i].opt;
 633               ++il;
 634             }
 635         }
 636     }
 637   shortopts[is] = '\0';
 638   longopts[il].name = NULL;
 639   really_longopts[irl].name = NULL;
 640
 641   ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
 642
 643   /* The -G option is ambiguous on different platforms.  Sometimes it
 644      specifies the largest data size to put into the small data
 645      section.  Sometimes it is equivalent to --shared.  Unfortunately,
 646      the first form takes an argument, while the second does not.
 647
 648      We need to permit the --shared form because on some platforms,
 649      such as Solaris, gcc -shared will pass -G to the linker.
 650
 651      To permit either usage, we look through the argument list.  If we
 652      find -G not followed by a number, we change it into --shared.
 653      This will work for most normal cases.  */
 654   for (i = 1; i < argc; i++)
 655     if (strcmp (argv[i], "-G") == 0
 656         && (i + 1 >= argc
 657             || ! ISDIGIT (argv[i + 1][0])))
 658       argv[i] = (char *) "--shared";
 659
 660   /* Because we permit long options to start with a single dash, and
 661      we have a --library option, and the -l option is conventionally
 662      used with an immediately following argument, we can have bad
 663      results if somebody tries to use -l with a library whose name
 664      happens to start with "ibrary", as in -li.  We avoid problems by
 665      simply turning -l into --library.  This means that users will
 666      have to use two dashes in order to use --library, which is OK
 667      since that's how it is documented.
 668
 669      FIXME: It's possible that this problem can arise for other short
 670      options as well, although the user does always have the recourse
 671      of adding a space between the option and the argument.  */
 672   for (i = 1; i < argc; i++)
 673     {
 674       if (argv[i][0] == '-'
 675           && argv[i][1] == 'l'
 676           && argv[i][2] != '\0')
 677         {
 678           char *n;
 679
 680           n = xmalloc (strlen (argv[i]) + 20);
 681           sprintf (n, "--library=%s", argv[i] + 2);
 682           argv[i] = n;
 683         }
 684     }
 685
 686   last_optind = -1;
 687   while (1)
 688     {
 689       int longind;
 690       int optc;
 691
 692       /* Using last_optind lets us avoid calling ldemul_parse_args
 693          multiple times on a single option, which would lead to
 694          confusion in the internal static variables maintained by
 695          getopt.  This could otherwise happen for an argument like
 696          -nx, in which the -n is parsed as a single option, and we
 697          loop around to pick up the -x.  */
 698       if (optind != last_optind)
 699         if (ldemul_parse_args (argc, argv))
 700           continue;
 701
 702       /* getopt_long_only is like getopt_long, but '-' as well as '--'
 703          can indicate a long option.  */
 704       opterr = 0;
 705       last_optind = optind;
 706       optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
 707       if (optc == '?')
 708         {
 709           optind = last_optind;
 710           optc = getopt_long (argc, argv, "-", really_longopts, &longind);
 711         }
 712
 713       if (ldemul_handle_option (optc))
 714         continue;
 715
 716       if (optc == -1)
 717         break;
 718
 719       switch (optc)
 720         {
 721         case '?':
 722           einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
 723           /* Fall through.  */
 724
 725         default:
 726           einfo (_("%P%F: use the --help option for usage information\n"));
 727
 728         case 1:                 /* File name.  */
 729           lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
 730           break;
 731
 732         case OPTION_IGNORE:
 733           break;
 734         case 'a':
 735           /* For HP/UX compatibility.  Actually -a shared should mean
 736              ``use only shared libraries'' but, then, we don't
 737              currently support shared libraries on HP/UX anyhow.  */
 738           if (strcmp (optarg, "archive") == 0)
 739             config.dynamic_link = FALSE;
 740           else if (strcmp (optarg, "shared") == 0
 741                    || strcmp (optarg, "default") == 0)
 742             config.dynamic_link = TRUE;
 743           else
 744             einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
 745           break;
 746         case OPTION_ASSERT:
 747           /* FIXME: We just ignore these, but we should handle them.  */
 748           if (strcmp (optarg, "definitions") == 0)
 749             ;
 750           else if (strcmp (optarg, "nodefinitions") == 0)
 751             ;
 752           else if (strcmp (optarg, "nosymbolic") == 0)
 753             ;
 754           else if (strcmp (optarg, "pure-text") == 0)
 755             ;
 756           else
 757             einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
 758           break;
 759         case 'A':
 760           ldfile_add_arch (optarg);
 761           break;
 762         case 'b':
 763           lang_add_target (optarg);
 764           break;
 765         case 'c':
 766           ldfile_open_command_file (optarg);
 767           parser_input = input_mri_script;
 768           yyparse ();
 769           break;
 770         case OPTION_CALL_SHARED:
 771           config.dynamic_link = TRUE;
 772           break;
 773         case OPTION_NON_SHARED:
 774           config.dynamic_link = FALSE;
 775           break;
 776         case OPTION_CREF:
 777           command_line.cref = TRUE;
 778           link_info.notice_all = TRUE;
 779           break;
 780         case 'd':
 781           command_line.force_common_definition = TRUE;
 782           break;
 783         case OPTION_DEFSYM:
 784           lex_string = optarg;
 785           lex_redirect (optarg);
 786           parser_input = input_defsym;
 787           parsing_defsym = 1;
 788           yyparse ();
 789           parsing_defsym = 0;
 790           lex_string = NULL;
 791           break;
 792         case OPTION_DEMANGLE:
 793           demangling = TRUE;
 794           if (optarg != NULL)
 795             {
 796               enum demangling_styles style;
 797
 798               style = cplus_demangle_name_to_style (optarg);
 799               if (style == unknown_demangling)
 800                 einfo (_("%F%P: unknown demangling style `%s'"),
 801                        optarg);
 802
 803               cplus_demangle_set_style (style);
 804             }
 805           break;
 806         case 'I':               /* Used on Solaris.  */
 807         case OPTION_DYNAMIC_LINKER:
 808           command_line.interpreter = optarg;
 809           break;
 810         case OPTION_SYSROOT:
 811           /* Already handled in ldmain.c.  */
 812           break;
 813         case OPTION_EB:
 814           command_line.endian = ENDIAN_BIG;
 815           break;
 816         case OPTION_EL:
 817           command_line.endian = ENDIAN_LITTLE;
 818           break;
 819         case OPTION_EMBEDDED_RELOCS:
 820           command_line.embedded_relocs = TRUE;
 821           break;
 822         case OPTION_EXPORT_DYNAMIC:
 823         case 'E': /* HP/UX compatibility.  */
 824           link_info.export_dynamic = TRUE;
 825           break;
 826         case OPTION_NO_EXPORT_DYNAMIC:
 827           link_info.export_dynamic = FALSE;
 828           break;
 829         case 'e':
 830           lang_add_entry (optarg, TRUE);
 831           ldlang_add_undef (optarg);
 832           break;
 833         case 'f':
 834           if (command_line.auxiliary_filters == NULL)
 835             {
 836               command_line.auxiliary_filters = xmalloc (2 * sizeof (char *));
 837               command_line.auxiliary_filters[0] = optarg;
 838               command_line.auxiliary_filters[1] = NULL;
 839             }
 840           else
 841             {
 842               int c;
 843               char **p;
 844
 845               c = 0;
 846               for (p = command_line.auxiliary_filters; *p != NULL; p++)
 847                 ++c;
 848               command_line.auxiliary_filters
 849                 = xrealloc (command_line.auxiliary_filters,
 850                             (c + 2) * sizeof (char *));
 851               command_line.auxiliary_filters[c] = optarg;
 852               command_line.auxiliary_filters[c + 1] = NULL;
 853             }
 854           break;
 855         case 'F':
 856           command_line.filter_shlib = optarg;
 857           break;
 858         case OPTION_FORCE_EXE_SUFFIX:
 859           command_line.force_exe_suffix = TRUE;
 860           break;
 861         case 'G':
 862           {
 863             char *end;
 864             g_switch_value = strtoul (optarg, &end, 0);
 865             if (*end)
 866               einfo (_("%P%F: invalid number `%s'\n"), optarg);
 867           }
 868           break;
 869         case 'g':
 870           /* Ignore.  */
 871           break;
 872         case OPTION_GC_SECTIONS:
 873           link_info.gc_sections = TRUE;
 874           break;
 875         case OPTION_PRINT_GC_SECTIONS:
 876           link_info.print_gc_sections = TRUE;
 877           break;
 878         case OPTION_HELP:
 879           help ();
 880           xexit (0);
 881           break;
 882         case 'L':
 883           ldfile_add_library_path (optarg, TRUE);
 884           break;
 885         case 'l':
 886           lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
 887           break;
 888         case 'M':
 889           config.map_filename = "-";
 890           break;
 891         case 'm':
 892           /* Ignore.  Was handled in a pre-parse.   */
 893           break;
 894         case OPTION_MAP:
 895           config.map_filename = optarg;
 896           break;
 897         case 'N':
 898           config.text_read_only = FALSE;
 899           config.magic_demand_paged = FALSE;
 900           config.dynamic_link = FALSE;
 901           break;
 902         case OPTION_NO_OMAGIC:
 903           config.text_read_only = TRUE;
 904           config.magic_demand_paged = TRUE;
 905           /* NB/ Does not set dynamic_link to TRUE.
 906              Use --call-shared or -Bdynamic for this.  */
 907           break;
 908         case 'n':
 909           config.magic_demand_paged = FALSE;
 910           config.dynamic_link = FALSE;
 911           break;
 912         case OPTION_NO_DEFINE_COMMON:
 913           command_line.inhibit_common_definition = TRUE;
 914           break;
 915         case OPTION_NO_DEMANGLE:
 916           demangling = FALSE;
 917           break;
 918         case OPTION_NO_GC_SECTIONS:
 919           link_info.gc_sections = FALSE;
 920           break;
 921         case OPTION_NO_PRINT_GC_SECTIONS:
 922           link_info.print_gc_sections = FALSE;
 923           break;
 924         case OPTION_NO_KEEP_MEMORY:
 925           link_info.keep_memory = FALSE;
 926           break;
 927         case OPTION_NO_UNDEFINED:
 928           link_info.unresolved_syms_in_objects
 929             = how_to_report_unresolved_symbols;
 930           break;
 931         case OPTION_ALLOW_SHLIB_UNDEFINED:
 932           link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 933           break;
 934         case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
 935           link_info.unresolved_syms_in_shared_libs
 936             = how_to_report_unresolved_symbols;
 937           break;
 938         case OPTION_UNRESOLVED_SYMBOLS:
 939           if (strcmp (optarg, "ignore-all") == 0)
 940             {
 941               link_info.unresolved_syms_in_objects = RM_IGNORE;
 942               link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 943             }
 944           else if (strcmp (optarg, "report-all") == 0)
 945             {
 946               link_info.unresolved_syms_in_objects
 947                 = how_to_report_unresolved_symbols;
 948               link_info.unresolved_syms_in_shared_libs
 949                 = how_to_report_unresolved_symbols;
 950             }
 951           else if (strcmp (optarg, "ignore-in-object-files") == 0)
 952             {
 953               link_info.unresolved_syms_in_objects = RM_IGNORE;
 954               link_info.unresolved_syms_in_shared_libs
 955                 = how_to_report_unresolved_symbols;
 956             }
 957           else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
 958             {
 959               link_info.unresolved_syms_in_objects
 960                 = how_to_report_unresolved_symbols;
 961               link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 962             }
 963           else
 964             einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
 965           break;
 966         case OPTION_WARN_UNRESOLVED_SYMBOLS:
 967           how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
 968           if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
 969             link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
 970           if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
 971             link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
 972           break;
 973
 974         case OPTION_ERROR_UNRESOLVED_SYMBOLS:
 975           how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
 976           if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
 977             link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
 978           if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
 979             link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
 980           break;
 981         case OPTION_ALLOW_MULTIPLE_DEFINITION:
 982           link_info.allow_multiple_definition = TRUE;
 983           break;
 984         case OPTION_NO_UNDEFINED_VERSION:
 985           link_info.allow_undefined_version = FALSE;
 986           break;
 987         case OPTION_DEFAULT_SYMVER:
 988           link_info.create_default_symver = TRUE;
 989           break;
 990         case OPTION_DEFAULT_IMPORTED_SYMVER:
 991           link_info.default_imported_symver = TRUE;
 992           break;
 993         case OPTION_NO_WARN_MISMATCH:
 994           command_line.warn_mismatch = FALSE;
 995           break;
 996         case OPTION_NO_WARN_SEARCH_MISMATCH:
 997           command_line.warn_search_mismatch = FALSE;
 998           break;
 999         case OPTION_NOINHIBIT_EXEC:
1000           force_make_executable = TRUE;
1001           break;
1002         case OPTION_NOSTDLIB:
1003           config.only_cmd_line_lib_dirs = TRUE;
1004           break;
1005         case OPTION_NO_WHOLE_ARCHIVE:
1006           whole_archive = FALSE;
1007           break;
1008         case 'O':
1009           /* FIXME "-O<non-digits> <value>" used to set the address of
1010              section <non-digits>.  Was this for compatibility with
1011              something, or can we create a new option to do that
1012              (with a syntax similar to -defsym)?
1013              getopt can't handle two args to an option without kludges.  */
1014
1015           /* Enable optimizations of output files.  */
1016           link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
1017           break;
1018         case 'o':
1019           lang_add_output (optarg, 0);
1020           break;
1021         case OPTION_OFORMAT:
1022           lang_add_output_format (optarg, NULL, NULL, 0);
1023           break;
1024         case 'q':
1025           link_info.emitrelocations = TRUE;
1026           break;
1027         case 'i':
1028         case 'r':
1029           if (optind == last_optind)
1030             /* This can happen if the user put "-rpath,a" on the command
1031                line.  (Or something similar.  The comma is important).
1032                Getopt becomes confused and thinks that this is a -r option
1033                but it cannot parse the text after the -r so it refuses to
1034                increment the optind counter.  Detect this case and issue
1035                an error message here.  We cannot just make this a warning,
1036                increment optind, and continue because getopt is too confused
1037                and will seg-fault the next time around.  */
1038             einfo(_("%P%F: bad -rpath option\n"));
1039
1040           link_info.relocatable = TRUE;
1041           config.build_constructors = FALSE;
1042           config.magic_demand_paged = FALSE;
1043           config.text_read_only = FALSE;
1044           config.dynamic_link = FALSE;
1045           break;
1046         case 'R':
1047           /* The GNU linker traditionally uses -R to mean to include
1048              only the symbols from a file.  The Solaris linker uses -R
1049              to set the path used by the runtime linker to find
1050              libraries.  This is the GNU linker -rpath argument.  We
1051              try to support both simultaneously by checking the file
1052              named.  If it is a directory, rather than a regular file,
1053              we assume -rpath was meant.  */
1054           {
1055             struct stat s;
1056
1057             if (stat (optarg, &s) >= 0
1058                 && ! S_ISDIR (s.st_mode))
1059               {
1060                 lang_add_input_file (optarg,
1061                                      lang_input_file_is_symbols_only_enum,
1062                                      NULL);
1063                 break;
1064               }
1065           }
1066           /* Fall through.  */
1067         case OPTION_RPATH:
1068           if (command_line.rpath == NULL)
1069             command_line.rpath = xstrdup (optarg);
1070           else
1071             {
1072               size_t rpath_len = strlen (command_line.rpath);
1073               size_t optarg_len = strlen (optarg);
1074               char *buf;
1075               char *cp = command_line.rpath;
1076
1077               /* First see whether OPTARG is already in the path.  */
1078               do
1079                 {
1080                   if (strncmp (optarg, cp, optarg_len) == 0
1081                       && (cp[optarg_len] == 0
1082                           || cp[optarg_len] == config.rpath_separator))
1083                     /* We found it.  */
1084                     break;
1085
1086                   /* Not yet found.  */
1087                   cp = strchr (cp, config.rpath_separator);
1088                   if (cp != NULL)
1089                     ++cp;
1090                 }
1091               while (cp != NULL);
1092
1093               if (cp == NULL)
1094                 {
1095                   buf = xmalloc (rpath_len + optarg_len + 2);
1096                   sprintf (buf, "%s%c%s", command_line.rpath,
1097                            config.rpath_separator, optarg);
1098                   free (command_line.rpath);
1099                   command_line.rpath = buf;
1100                 }
1101             }
1102           break;
1103         case OPTION_RPATH_LINK:
1104           if (command_line.rpath_link == NULL)
1105             command_line.rpath_link = xstrdup (optarg);
1106           else
1107             {
1108               char *buf;
1109
1110               buf = xmalloc (strlen (command_line.rpath_link)
1111                              + strlen (optarg)
1112                              + 2);
1113               sprintf (buf, "%s%c%s", command_line.rpath_link,
1114                        config.rpath_separator, optarg);
1115               free (command_line.rpath_link);
1116               command_line.rpath_link = buf;
1117             }
1118           break;
1119         case OPTION_RELAX:
1120           command_line.relax = TRUE;
1121           break;
1122         case OPTION_RETAIN_SYMBOLS_FILE:
1123           add_keepsyms_file (optarg);
1124           break;
1125         case 'S':
1126           link_info.strip = strip_debugger;
1127           break;
1128         case 's':
1129           link_info.strip = strip_all;
1130           break;
1131         case OPTION_STRIP_DISCARDED:
1132           link_info.strip_discarded = TRUE;
1133           break;
1134         case OPTION_NO_STRIP_DISCARDED:
1135           link_info.strip_discarded = FALSE;
1136           break;
1137         case OPTION_SHARED:
1138           if (config.has_shared)
1139             {
1140               link_info.shared = TRUE;
1141               /* When creating a shared library, the default
1142                  behaviour is to ignore any unresolved references.  */
1143               if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1144                 link_info.unresolved_syms_in_objects = RM_IGNORE;
1145               if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1146                 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1147             }
1148           else
1149             einfo (_("%P%F: -shared not supported\n"));
1150           break;
1151         case OPTION_PIE:
1152           if (config.has_shared)
1153             {
1154               link_info.shared = TRUE;
1155               link_info.pie = TRUE;
1156             }
1157           else
1158             einfo (_("%P%F: -pie not supported\n"));
1159           break;
1160         case 'h':               /* Used on Solaris.  */
1161         case OPTION_SONAME:
1162           command_line.soname = optarg;
1163           break;
1164         case OPTION_SORT_COMMON:
1165           if (optarg == NULL
1166               || strcmp (optarg, N_("descending")) == 0)
1167             config.sort_common = sort_descending;
1168           else if (strcmp (optarg, N_("ascending")) == 0)
1169             config.sort_common = sort_ascending;
1170           else
1171             einfo (_("%P%F: invalid common section sorting option: %s\n"),
1172                    optarg);
1173           break;
1174         case OPTION_SORT_SECTION:
1175           if (strcmp (optarg, N_("name")) == 0)
1176             sort_section = by_name;
1177           else if (strcmp (optarg, N_("alignment")) == 0)
1178             sort_section = by_alignment;
1179           else
1180             einfo (_("%P%F: invalid section sorting option: %s\n"),
1181                    optarg);
1182           break;
1183         case OPTION_STATS:
1184           config.stats = TRUE;
1185           break;
1186         case OPTION_SYMBOLIC:
1187           command_line.symbolic = symbolic;
1188           break;
1189         case OPTION_SYMBOLIC_FUNCTIONS:
1190           command_line.symbolic = symbolic_functions;
1191           break;
1192         case 't':
1193           trace_files = TRUE;
1194           break;
1195         case 'T':
1196           previous_script_handle = saved_script_handle;
1197           ldfile_open_command_file (optarg);
1198           parser_input = input_script;
1199           yyparse ();
1200           previous_script_handle = NULL;
1201           break;
1202         case OPTION_DEFAULT_SCRIPT:
1203           command_line.default_script = optarg;
1204           break;
1205         case OPTION_SECTION_START:
1206           {
1207             char *optarg2;
1208             char *sec_name;
1209             int len;
1210
1211             /* Check for <something>=<somthing>...  */
1212             optarg2 = strchr (optarg, '=');
1213             if (optarg2 == NULL)
1214               einfo (_("%P%F: invalid argument to option"
1215                        " \"--section-start\"\n"));
1216
1217             optarg2++;
1218
1219             /* So far so good.  Are all the args present?  */
1220             if ((*optarg == '\0') || (*optarg2 == '\0'))
1221               einfo (_("%P%F: missing argument(s) to option"
1222                        " \"--section-start\"\n"));
1223
1224             /* We must copy the section name as set_section_start
1225                doesn't do it for us.  */
1226             len = optarg2 - optarg;
1227             sec_name = xmalloc (len);
1228             memcpy (sec_name, optarg, len - 1);
1229             sec_name[len - 1] = 0;
1230
1231             /* Then set it...  */
1232             set_section_start (sec_name, optarg2);
1233           }
1234           break;
1235         case OPTION_TARGET_HELP:
1236           /* Mention any target specific options.  */
1237           ldemul_list_emulation_options (stdout);
1238           exit (0);
1239         case OPTION_TBSS:
1240           set_segment_start (".bss", optarg);
1241           break;
1242         case OPTION_TDATA:
1243           set_segment_start (".data", optarg);
1244           break;
1245         case OPTION_TTEXT:
1246           set_segment_start (".text", optarg);
1247           break;
1248         case OPTION_TTEXT_SEGMENT:
1249           set_segment_start (".text-segment", optarg);
1250           break;
1251         case OPTION_TRADITIONAL_FORMAT:
1252           link_info.traditional_format = TRUE;
1253           break;
1254         case OPTION_TASK_LINK:
1255           link_info.task_link = TRUE;
1256           /* Fall through - do an implied -r option.  */
1257         case OPTION_UR:
1258           link_info.relocatable = TRUE;
1259           config.build_constructors = TRUE;
1260           config.magic_demand_paged = FALSE;
1261           config.text_read_only = FALSE;
1262           config.dynamic_link = FALSE;
1263           break;
1264         case 'u':
1265           ldlang_add_undef (optarg);
1266           break;
1267         case OPTION_UNIQUE:
1268           if (optarg != NULL)
1269             lang_add_unique (optarg);
1270           else
1271             config.unique_orphan_sections = TRUE;
1272           break;
1273         case OPTION_VERBOSE:
1274           ldversion (1);
1275           version_printed = TRUE;
1276           trace_file_tries = TRUE;
1277           overflow_cutoff_limit = -2;
1278           break;
1279         case 'v':
1280           ldversion (0);
1281           version_printed = TRUE;
1282           break;
1283         case 'V':
1284           ldversion (1);
1285           version_printed = TRUE;
1286           break;
1287         case OPTION_VERSION:
1288           ldversion (2);
1289           xexit (0);
1290           break;
1291         case OPTION_VERSION_SCRIPT:
1292           /* This option indicates a small script that only specifies
1293              version information.  Read it, but don't assume that
1294              we've seen a linker script.  */
1295           {
1296             FILE *hold_script_handle;
1297
1298             hold_script_handle = saved_script_handle;
1299             ldfile_open_command_file (optarg);
1300             saved_script_handle = hold_script_handle;
1301             parser_input = input_version_script;
1302             yyparse ();
1303           }
1304           break;
1305         case OPTION_VERSION_EXPORTS_SECTION:
1306           /* This option records a version symbol to be applied to the
1307              symbols listed for export to be found in the object files
1308              .exports sections.  */
1309           command_line.version_exports_section = optarg;
1310           break;
1311         case OPTION_DYNAMIC_LIST_DATA:
1312           command_line.dynamic_list = dynamic_list_data;
1313           if (command_line.symbolic == symbolic)
1314             command_line.symbolic = symbolic_unset;
1315           break;
1316         case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1317           lang_append_dynamic_list_cpp_typeinfo ();
1318           if (command_line.dynamic_list != dynamic_list_data)
1319             command_line.dynamic_list = dynamic_list;
1320           if (command_line.symbolic == symbolic)
1321             command_line.symbolic = symbolic_unset;
1322           break;
1323         case OPTION_DYNAMIC_LIST_CPP_NEW:
1324           lang_append_dynamic_list_cpp_new ();
1325           if (command_line.dynamic_list != dynamic_list_data)
1326             command_line.dynamic_list = dynamic_list;
1327           if (command_line.symbolic == symbolic)
1328             command_line.symbolic = symbolic_unset;
1329           break;
1330         case OPTION_DYNAMIC_LIST:
1331           /* This option indicates a small script that only specifies
1332              a dynamic list.  Read it, but don't assume that we've
1333              seen a linker script.  */
1334           {
1335             FILE *hold_script_handle;
1336
1337             hold_script_handle = saved_script_handle;
1338             ldfile_open_command_file (optarg);
1339             saved_script_handle = hold_script_handle;
1340             parser_input = input_dynamic_list;
1341             yyparse ();
1342           }
1343           if (command_line.dynamic_list != dynamic_list_data)
1344             command_line.dynamic_list = dynamic_list;
1345           if (command_line.symbolic == symbolic)
1346             command_line.symbolic = symbolic_unset;
1347           break;
1348         case OPTION_WARN_COMMON:
1349           config.warn_common = TRUE;
1350           break;
1351         case OPTION_WARN_CONSTRUCTORS:
1352           config.warn_constructors = TRUE;
1353           break;
1354         case OPTION_WARN_FATAL:
1355           config.fatal_warnings = TRUE;
1356           break;
1357         case OPTION_NO_WARN_FATAL:
1358           config.fatal_warnings = FALSE;
1359           break;
1360         case OPTION_WARN_MULTIPLE_GP:
1361           config.warn_multiple_gp = TRUE;
1362           break;
1363         case OPTION_WARN_ONCE:
1364           config.warn_once = TRUE;
1365           break;
1366         case OPTION_WARN_SECTION_ALIGN:
1367           config.warn_section_align = TRUE;
1368           break;
1369         case OPTION_WARN_SHARED_TEXTREL:
1370           link_info.warn_shared_textrel = TRUE;
1371           break;
1372         case OPTION_WARN_ALTERNATE_EM:
1373           link_info.warn_alternate_em = TRUE;
1374           break;
1375         case OPTION_WHOLE_ARCHIVE:
1376           whole_archive = TRUE;
1377           break;
1378         case OPTION_ADD_NEEDED:
1379           add_needed = TRUE;
1380           break;
1381         case OPTION_NO_ADD_NEEDED:
1382           add_needed = FALSE;
1383           break;
1384         case OPTION_AS_NEEDED:
1385           as_needed = TRUE;
1386           break;
1387         case OPTION_NO_AS_NEEDED:
1388           as_needed = FALSE;
1389           break;
1390         case OPTION_WRAP:
1391           add_wrap (optarg);
1392           break;
1393         case OPTION_DISCARD_NONE:
1394           link_info.discard = discard_none;
1395           break;
1396         case 'X':
1397           link_info.discard = discard_l;
1398           break;
1399         case 'x':
1400           link_info.discard = discard_all;
1401           break;
1402         case 'Y':
1403           if (CONST_STRNEQ (optarg, "P,"))
1404             optarg += 2;
1405           if (default_dirlist != NULL)
1406             free (default_dirlist);
1407           default_dirlist = xstrdup (optarg);
1408           break;
1409         case 'y':
1410           add_ysym (optarg);
1411           break;
1412         case OPTION_SPARE_DYNAMIC_TAGS:
1413           link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1414           break;
1415         case OPTION_SPLIT_BY_RELOC:
1416           if (optarg != NULL)
1417             config.split_by_reloc = strtoul (optarg, NULL, 0);
1418           else
1419             config.split_by_reloc = 32768;
1420           break;
1421         case OPTION_SPLIT_BY_FILE:
1422           if (optarg != NULL)
1423             config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1424           else
1425             config.split_by_file = 1;
1426           break;
1427         case OPTION_CHECK_SECTIONS:
1428           command_line.check_section_addresses = 1;
1429           break;
1430         case OPTION_NO_CHECK_SECTIONS:
1431           command_line.check_section_addresses = 0;
1432           break;
1433         case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1434           command_line.accept_unknown_input_arch = TRUE;
1435           break;
1436         case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1437           command_line.accept_unknown_input_arch = FALSE;
1438           break;
1439         case '(':
1440           if (ingroup)
1441             einfo (_("%P%F: may not nest groups (--help for usage)\n"));
1442
1443           lang_enter_group ();
1444           ingroup = 1;
1445           break;
1446         case ')':
1447           if (! ingroup)
1448             einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1449
1450           lang_leave_group ();
1451           ingroup = 0;
1452           break;
1453
1454         case OPTION_INIT:
1455           link_info.init_function = optarg;
1456           break;
1457
1458         case OPTION_FINI:
1459           link_info.fini_function = optarg;
1460           break;
1461
1462         case OPTION_REDUCE_MEMORY_OVERHEADS:
1463           link_info.reduce_memory_overheads = TRUE;
1464           if (config.hash_table_size == 0)
1465             config.hash_table_size = 1021;
1466           break;
1467
1468         case OPTION_HASH_SIZE:
1469           {
1470             bfd_size_type new_size;
1471
1472             new_size = strtoul (optarg, NULL, 0);
1473             if (new_size)
1474               config.hash_table_size = new_size;
1475             else
1476               einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1477           }
1478           break;
1479         }
1480     }
1481
1482   if (ingroup)
1483     lang_leave_group ();
1484
1485   if (default_dirlist != NULL)
1486     {
1487       set_default_dirlist (default_dirlist);
1488       free (default_dirlist);
1489     }
1490
1491   if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1492     /* FIXME: Should we allow emulations a chance to set this ?  */
1493     link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1494
1495   if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1496     /* FIXME: Should we allow emulations a chance to set this ?  */
1497     link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1498 }
1499
1500 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1501    library search path.  */
1502
1503 static void
1504 set_default_dirlist (char *dirlist_ptr)
1505 {
1506   char *p;
1507
1508   while (1)
1509     {
1510       p = strchr (dirlist_ptr, PATH_SEPARATOR);
1511       if (p != NULL)
1512         *p = '\0';
1513       if (*dirlist_ptr != '\0')
1514         ldfile_add_library_path (dirlist_ptr, TRUE);
1515       if (p == NULL)
1516         break;
1517       dirlist_ptr = p + 1;
1518     }
1519 }
1520
1521 static void
1522 set_section_start (char *sect, char *valstr)
1523 {
1524   const char *end;
1525   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1526   if (*end)
1527     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1528   lang_section_start (sect, exp_intop (val), NULL);
1529 }
1530
1531 static void
1532 set_segment_start (const char *section, char *valstr)
1533 {
1534   const char *name;
1535   const char *end;
1536   segment_type *seg;
1537
1538   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1539   if (*end)
1540     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1541   /* If we already have an entry for this segment, update the existing
1542      value.  */
1543   name = section + 1;
1544   for (seg = segments; seg; seg = seg->next)
1545     if (strcmp (seg->name, name) == 0)
1546       {
1547         seg->value = val;
1548         return;
1549       }
1550   /* There was no existing value so we must create a new segment
1551      entry.  */
1552   seg = stat_alloc (sizeof (*seg));
1553   seg->name = name;
1554   seg->value = val;
1555   seg->used = FALSE;
1556   /* Add it to the linked list of segments.  */
1557   seg->next = segments;
1558   segments = seg;
1559   /* Historically, -Ttext and friends set the base address of a
1560      particular section.  For backwards compatibility, we still do
1561      that.  If a SEGMENT_START directive is seen, the section address
1562      assignment will be disabled.  */
1563   lang_section_start (section, exp_intop (val), seg);
1564 }
1565
1566 \f
1567 /* Print help messages for the options.  */
1568
1569 static void
1570 help (void)
1571 {
1572   unsigned i;
1573   const char **targets, **pp;
1574   int len;
1575
1576   printf (_("Usage: %s [options] file...\n"), program_name);
1577
1578   printf (_("Options:\n"));
1579   for (i = 0; i < OPTION_COUNT; i++)
1580     {
1581       if (ld_options[i].doc != NULL)
1582         {
1583           bfd_boolean comma;
1584           unsigned j;
1585
1586           printf ("  ");
1587
1588           comma = FALSE;
1589           len = 2;
1590
1591           j = i;
1592           do
1593             {
1594               if (ld_options[j].shortopt != '\0'
1595                   && ld_options[j].control != NO_HELP)
1596                 {
1597                   printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1598                   len += (comma ? 2 : 0) + 2;
1599                   if (ld_options[j].arg != NULL)
1600                     {
1601                       if (ld_options[j].opt.has_arg != optional_argument)
1602                         {
1603                           printf (" ");
1604                           ++len;
1605                         }
1606                       printf ("%s", _(ld_options[j].arg));
1607                       len += strlen (_(ld_options[j].arg));
1608                     }
1609                   comma = TRUE;
1610                 }
1611               ++j;
1612             }
1613           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1614
1615           j = i;
1616           do
1617             {
1618               if (ld_options[j].opt.name != NULL
1619                   && ld_options[j].control != NO_HELP)
1620                 {
1621                   int two_dashes =
1622                     (ld_options[j].control == TWO_DASHES
1623                      || ld_options[j].control == EXACTLY_TWO_DASHES);
1624
1625                   printf ("%s-%s%s",
1626                           comma ? ", " : "",
1627                           two_dashes ? "-" : "",
1628                           ld_options[j].opt.name);
1629                   len += ((comma ? 2 : 0)
1630                           + 1
1631                           + (two_dashes ? 1 : 0)
1632                           + strlen (ld_options[j].opt.name));
1633                   if (ld_options[j].arg != NULL)
1634                     {
1635                       printf (" %s", _(ld_options[j].arg));
1636                       len += 1 + strlen (_(ld_options[j].arg));
1637                     }
1638                   comma = TRUE;
1639                 }
1640               ++j;
1641             }
1642           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1643
1644           if (len >= 30)
1645             {
1646               printf ("\n");
1647               len = 0;
1648             }
1649
1650           for (; len < 30; len++)
1651             putchar (' ');
1652
1653           printf ("%s\n", _(ld_options[i].doc));
1654         }
1655     }
1656   printf (_("  @FILE"));
1657   for (len = strlen ("  @FILE"); len < 30; len++)
1658     putchar (' ');
1659   printf (_("Read options from FILE\n"));
1660
1661   /* Note: Various tools (such as libtool) depend upon the
1662      format of the listings below - do not change them.  */
1663   /* xgettext:c-format */
1664   printf (_("%s: supported targets:"), program_name);
1665   targets = bfd_target_list ();
1666   for (pp = targets; *pp != NULL; pp++)
1667     printf (" %s", *pp);
1668   free (targets);
1669   printf ("\n");
1670
1671   /* xgettext:c-format */
1672   printf (_("%s: supported emulations: "), program_name);
1673   ldemul_list_emulations (stdout);
1674   printf ("\n");
1675
1676   /* xgettext:c-format */
1677   printf (_("%s: emulation specific options:\n"), program_name);
1678   ldemul_list_emulation_options (stdout);
1679   printf ("\n");
1680
1681   if (REPORT_BUGS_TO[0])
1682     printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
1683 }