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 #ifdef ENABLE_PLUGINS
  44 #include "plugin.h"
  45 #endif /* ENABLE_PLUGINS */
  46
  47 #ifndef PATH_SEPARATOR
  48 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
  49 #define PATH_SEPARATOR ';'
  50 #else
  51 #define PATH_SEPARATOR ':'
  52 #endif
  53 #endif
  54
  55 /* Somewhere above, sys/stat.h got included . . . .  */
  56 #if !defined(S_ISDIR) && defined(S_IFDIR)
  57 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
  58 #endif
  59
  60 static void set_default_dirlist (char *);
  61 static void set_section_start (char *, char *);
  62 static void set_segment_start (const char *, char *);
  63 static void help (void);
  64
  65 /* Non-zero if we are processing a --defsym from the command line.  */
  66 int parsing_defsym = 0;
  67
  68 /* Codes used for the long options with no short synonyms.  150 isn't
  69    special; it's just an arbitrary non-ASCII char value.  */
  70 enum option_values
  71 {
  72   OPTION_ASSERT = 150,
  73   OPTION_CALL_SHARED,
  74   OPTION_CREF,
  75   OPTION_DEFSYM,
  76   OPTION_DEMANGLE,
  77   OPTION_DYNAMIC_LINKER,
  78   OPTION_SYSROOT,
  79   OPTION_EB,
  80   OPTION_EL,
  81   OPTION_EMBEDDED_RELOCS,
  82   OPTION_EXPORT_DYNAMIC,
  83   OPTION_NO_EXPORT_DYNAMIC,
  84   OPTION_HELP,
  85   OPTION_IGNORE,
  86   OPTION_MAP,
  87   OPTION_NO_DEMANGLE,
  88   OPTION_NO_KEEP_MEMORY,
  89   OPTION_NO_WARN_MISMATCH,
  90   OPTION_NO_WARN_SEARCH_MISMATCH,
  91   OPTION_NOINHIBIT_EXEC,
  92   OPTION_NON_SHARED,
  93   OPTION_NO_WHOLE_ARCHIVE,
  94   OPTION_OFORMAT,
  95   OPTION_RELAX,
  96   OPTION_NO_RELAX,
  97   OPTION_RETAIN_SYMBOLS_FILE,
  98   OPTION_RPATH,
  99   OPTION_RPATH_LINK,
 100   OPTION_SHARED,
 101   OPTION_SONAME,
 102   OPTION_SORT_COMMON,
 103   OPTION_SORT_SECTION,
 104   OPTION_STATS,
 105   OPTION_SYMBOLIC,
 106   OPTION_SYMBOLIC_FUNCTIONS,
 107   OPTION_TASK_LINK,
 108   OPTION_TBSS,
 109   OPTION_TDATA,
 110   OPTION_TTEXT,
 111   OPTION_TTEXT_SEGMENT,
 112   OPTION_TRADITIONAL_FORMAT,
 113   OPTION_UR,
 114   OPTION_VERBOSE,
 115   OPTION_VERSION,
 116   OPTION_VERSION_SCRIPT,
 117   OPTION_VERSION_EXPORTS_SECTION,
 118   OPTION_DYNAMIC_LIST,
 119   OPTION_DYNAMIC_LIST_CPP_NEW,
 120   OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
 121   OPTION_DYNAMIC_LIST_DATA,
 122   OPTION_WARN_COMMON,
 123   OPTION_WARN_CONSTRUCTORS,
 124   OPTION_WARN_FATAL,
 125   OPTION_NO_WARN_FATAL,
 126   OPTION_WARN_MULTIPLE_GP,
 127   OPTION_WARN_ONCE,
 128   OPTION_WARN_SECTION_ALIGN,
 129   OPTION_SPLIT_BY_RELOC,
 130   OPTION_SPLIT_BY_FILE ,
 131   OPTION_WHOLE_ARCHIVE,
 132   OPTION_ADD_DT_NEEDED_FOR_DYNAMIC,
 133   OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC,
 134   OPTION_ADD_DT_NEEDED_FOR_REGULAR,
 135   OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR,
 136   OPTION_WRAP,
 137   OPTION_FORCE_EXE_SUFFIX,
 138   OPTION_GC_SECTIONS,
 139   OPTION_NO_GC_SECTIONS,
 140   OPTION_PRINT_GC_SECTIONS,
 141   OPTION_NO_PRINT_GC_SECTIONS,
 142   OPTION_HASH_SIZE,
 143   OPTION_CHECK_SECTIONS,
 144   OPTION_NO_CHECK_SECTIONS,
 145   OPTION_NO_UNDEFINED,
 146   OPTION_INIT,
 147   OPTION_FINI,
 148   OPTION_SECTION_START,
 149   OPTION_UNIQUE,
 150   OPTION_TARGET_HELP,
 151   OPTION_ALLOW_SHLIB_UNDEFINED,
 152   OPTION_NO_ALLOW_SHLIB_UNDEFINED,
 153   OPTION_ALLOW_MULTIPLE_DEFINITION,
 154   OPTION_NO_UNDEFINED_VERSION,
 155   OPTION_DEFAULT_SYMVER,
 156   OPTION_DEFAULT_IMPORTED_SYMVER,
 157   OPTION_DISCARD_NONE,
 158   OPTION_SPARE_DYNAMIC_TAGS,
 159   OPTION_NO_DEFINE_COMMON,
 160   OPTION_NOSTDLIB,
 161   OPTION_NO_OMAGIC,
 162   OPTION_STRIP_DISCARDED,
 163   OPTION_NO_STRIP_DISCARDED,
 164   OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
 165   OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
 166   OPTION_PIE,
 167   OPTION_UNRESOLVED_SYMBOLS,
 168   OPTION_WARN_UNRESOLVED_SYMBOLS,
 169   OPTION_ERROR_UNRESOLVED_SYMBOLS,
 170   OPTION_WARN_SHARED_TEXTREL,
 171   OPTION_WARN_ALTERNATE_EM,
 172   OPTION_REDUCE_MEMORY_OVERHEADS,
 173 #ifdef ENABLE_PLUGINS
 174   OPTION_PLUGIN,
 175   OPTION_PLUGIN_OPT,
 176 #endif /* ENABLE_PLUGINS */
 177   OPTION_DEFAULT_SCRIPT,
 178 };
 179
 180 /* The long options.  This structure is used for both the option
 181    parsing and the help text.  */
 182
 183 enum control_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 };
 201
 202 struct ld_option
 203 {
 204   /* The long option information.  */
 205   struct option opt;
 206   /* The short option with the same meaning ('\0' if none).  */
 207   char shortopt;
 208   /* The name of the argument (NULL if none).  */
 209   const char *arg;
 210   /* The documentation string.  If this is NULL, this is a synonym for
 211      the previous option.  */
 212   const char *doc;
 213   enum control_enum control;
 214 };
 215
 216 static const struct ld_option ld_options[] =
 217 {
 218   { {NULL, required_argument, NULL, '\0'},
 219     'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
 220     ONE_DASH },
 221   { {"architecture", required_argument, NULL, 'A'},
 222     'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
 223   { {"format", required_argument, NULL, 'b'},
 224     'b', N_("TARGET"), N_("Specify target for following input files"),
 225     TWO_DASHES },
 226   { {"mri-script", required_argument, NULL, 'c'},
 227     'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
 228   { {"dc", no_argument, NULL, 'd'},
 229     'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
 230   { {"dp", no_argument, NULL, 'd'},
 231     '\0', NULL, NULL, ONE_DASH },
 232   { {"entry", required_argument, NULL, 'e'},
 233     'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
 234   { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
 235     'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
 236   { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
 237     '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
 238   { {"EB", no_argument, NULL, OPTION_EB},
 239     '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
 240   { {"EL", no_argument, NULL, OPTION_EL},
 241     '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
 242   { {"auxiliary", required_argument, NULL, 'f'},
 243     'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
 244     TWO_DASHES },
 245   { {"filter", required_argument, NULL, 'F'},
 246     'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
 247     TWO_DASHES },
 248   { {NULL, no_argument, NULL, '\0'},
 249     'g', NULL, N_("Ignored"), ONE_DASH },
 250   { {"gpsize", required_argument, NULL, 'G'},
 251     'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
 252     TWO_DASHES },
 253   { {"soname", required_argument, NULL, OPTION_SONAME},
 254     'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
 255   { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
 256     'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
 257     TWO_DASHES },
 258   { {"library", required_argument, NULL, 'l'},
 259     'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
 260   { {"library-path", required_argument, NULL, 'L'},
 261     'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
 262     TWO_DASHES },
 263   { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
 264     '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
 265   { {NULL, required_argument, NULL, '\0'},
 266     'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
 267   { {"print-map", no_argument, NULL, 'M'},
 268     'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
 269   { {"nmagic", no_argument, NULL, 'n'},
 270     'n', NULL, N_("Do not page align data"), TWO_DASHES },
 271   { {"omagic", no_argument, NULL, 'N'},
 272     'N', NULL, N_("Do not page align data, do not make text readonly"),
 273     EXACTLY_TWO_DASHES },
 274   { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
 275     '\0', NULL, N_("Page align data, make text readonly"),
 276     EXACTLY_TWO_DASHES },
 277   { {"output", required_argument, NULL, 'o'},
 278     'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
 279   { {NULL, required_argument, NULL, '\0'},
 280     'O', NULL, N_("Optimize output file"), ONE_DASH },
 281 #ifdef ENABLE_PLUGINS
 282   { {"plugin", required_argument, NULL, OPTION_PLUGIN},
 283     '\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH },
 284   { {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT},
 285     '\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH },
 286   { {"flto", optional_argument, NULL, OPTION_IGNORE},
 287     '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
 288     ONE_DASH },
 289   { {"flto-partition=", required_argument, NULL, OPTION_IGNORE},
 290     '\0', NULL, N_("Ignored for GCC LTO option compatibility"),
 291     ONE_DASH },
 292 #endif /* ENABLE_PLUGINS */
 293   { {"Qy", no_argument, NULL, OPTION_IGNORE},
 294     '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
 295   { {"emit-relocs", no_argument, NULL, 'q'},
 296     'q', NULL, "Generate relocations in final output", TWO_DASHES },
 297   { {"relocatable", no_argument, NULL, 'r'},
 298     'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
 299   { {NULL, no_argument, NULL, '\0'},
 300     'i', NULL, NULL, ONE_DASH },
 301   { {"just-symbols", required_argument, NULL, 'R'},
 302     'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
 303     TWO_DASHES },
 304   { {"strip-all", no_argument, NULL, 's'},
 305     's', NULL, N_("Strip all symbols"), TWO_DASHES },
 306   { {"strip-debug", no_argument, NULL, 'S'},
 307     'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
 308   { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
 309     '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
 310   { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
 311     '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
 312   { {"trace", no_argument, NULL, 't'},
 313     't', NULL, N_("Trace file opens"), TWO_DASHES },
 314   { {"script", required_argument, NULL, 'T'},
 315     'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
 316   { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
 317     '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
 318   { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
 319     '\0', NULL, NULL, ONE_DASH },
 320   { {"undefined", required_argument, NULL, 'u'},
 321     'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
 322     TWO_DASHES },
 323   { {"unique", optional_argument, NULL, OPTION_UNIQUE},
 324     '\0', N_("[=SECTION]"),
 325     N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
 326   { {"Ur", no_argument, NULL, OPTION_UR},
 327     '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
 328   { {"version", no_argument, NULL, OPTION_VERSION},
 329     'v', NULL, N_("Print version information"), TWO_DASHES },
 330   { {NULL, no_argument, NULL, '\0'},
 331     'V', NULL, N_("Print version and emulation information"), ONE_DASH },
 332   { {"discard-all", no_argument, NULL, 'x'},
 333     'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
 334   { {"discard-locals", no_argument, NULL, 'X'},
 335     'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
 336   { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
 337     '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
 338   { {"trace-symbol", required_argument, NULL, 'y'},
 339     'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
 340   { {NULL, required_argument, NULL, '\0'},
 341     'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
 342     ONE_DASH },
 343   { {"start-group", no_argument, NULL, '('},
 344     '(', NULL, N_("Start a group"), TWO_DASHES },
 345   { {"end-group", no_argument, NULL, ')'},
 346     ')', NULL, N_("End a group"), TWO_DASHES },
 347   { {"accept-unknown-input-arch", no_argument, NULL,
 348      OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
 349     '\0', NULL,
 350     N_("Accept input files whose architecture cannot be determined"),
 351     TWO_DASHES },
 352   { {"no-accept-unknown-input-arch", no_argument, NULL,
 353      OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
 354     '\0', NULL, N_("Reject input files whose architecture is unknown"),
 355     TWO_DASHES },
 356
 357   /* The next two options are deprecated because of their similarity to
 358      --as-needed and --no-as-needed.  They have been replaced by
 359      --copy-dt-needed-entries and --no-copy-dt-needed-entries.  */
 360   { {"add-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
 361     '\0', NULL, NULL, NO_HELP },
 362   { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
 363     '\0', NULL, NULL, NO_HELP },
 364
 365   { {"as-needed", no_argument, NULL, OPTION_ADD_DT_NEEDED_FOR_REGULAR},
 366     '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
 367     TWO_DASHES },
 368   { {"no-as-needed", no_argument, NULL, OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR},
 369     '\0', NULL, N_("Always set DT_NEEDED for dynamic libraries mentioned on\n"
 370                    "                                the command line"),
 371     TWO_DASHES },
 372   { {"assert", required_argument, NULL, OPTION_ASSERT},
 373     '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
 374   { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
 375     '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
 376   { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
 377     '\0', NULL, NULL, ONE_DASH },
 378   { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
 379     '\0', NULL, NULL, ONE_DASH },
 380   { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
 381     '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
 382   { {"dn", no_argument, NULL, OPTION_NON_SHARED},
 383     '\0', NULL, NULL, ONE_DASH },
 384   { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
 385     '\0', NULL, NULL, ONE_DASH },
 386   { {"static", no_argument, NULL, OPTION_NON_SHARED},
 387     '\0', NULL, NULL, ONE_DASH },
 388   { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
 389     '\0', NULL, N_("Bind global references locally"), ONE_DASH },
 390   { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
 391     '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
 392   { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
 393     '\0', NULL, N_("Check section addresses for overlaps (default)"),
 394     TWO_DASHES },
 395   { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
 396     '\0', NULL, N_("Do not check section addresses for overlaps"),
 397     TWO_DASHES },
 398   { {"copy-dt-needed-entries", no_argument, NULL,
 399      OPTION_ADD_DT_NEEDED_FOR_DYNAMIC},
 400     '\0', NULL, N_("Copy DT_NEEDED links mentioned inside DSOs that follow"),
 401     TWO_DASHES },
 402   { {"no-copy-dt-needed-entries", no_argument, NULL,
 403      OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC},
 404     '\0', NULL, N_("Do not copy DT_NEEDED links mentioned inside DSOs that follow"),
 405     TWO_DASHES },
 406
 407   { {"cref", no_argument, NULL, OPTION_CREF},
 408     '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
 409   { {"defsym", required_argument, NULL, OPTION_DEFSYM},
 410     '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
 411   { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
 412     '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
 413     TWO_DASHES },
 414   { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
 415     '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
 416   { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
 417     '\0', NULL, N_("Treat warnings as errors"),
 418     TWO_DASHES },
 419   { {"no-fatal-warnings", no_argument, NULL, OPTION_NO_WARN_FATAL},
 420     '\0', NULL, N_("Do not treat warnings as errors (default)"),
 421     TWO_DASHES },
 422   { {"fini", required_argument, NULL, OPTION_FINI},
 423     '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
 424   { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
 425     '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
 426   { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
 427     '\0', NULL, N_("Remove unused sections (on some targets)"),
 428     TWO_DASHES },
 429   { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
 430     '\0', NULL, N_("Don't remove unused sections (default)"),
 431     TWO_DASHES },
 432   { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
 433     '\0', NULL, N_("List removed unused sections on stderr"),
 434     TWO_DASHES },
 435   { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
 436     '\0', NULL, N_("Do not list removed unused sections"),
 437     TWO_DASHES },
 438   { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
 439     '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
 440     TWO_DASHES },
 441   { {"help", no_argument, NULL, OPTION_HELP},
 442     '\0', NULL, N_("Print option help"), TWO_DASHES },
 443   { {"init", required_argument, NULL, OPTION_INIT},
 444     '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
 445   { {"Map", required_argument, NULL, OPTION_MAP},
 446     '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
 447   { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
 448     '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
 449   { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
 450     '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
 451   { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
 452     '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
 453   { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
 454     '\0', NULL, N_("Do not allow unresolved references in object files"),
 455     TWO_DASHES },
 456   { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
 457     '\0', NULL, N_("Allow unresolved references in shared libaries"),
 458     TWO_DASHES },
 459   { {"no-allow-shlib-undefined", no_argument, NULL,
 460      OPTION_NO_ALLOW_SHLIB_UNDEFINED},
 461     '\0', NULL, N_("Do not allow unresolved references in shared libs"),
 462     TWO_DASHES },
 463   { {"allow-multiple-definition", no_argument, NULL,
 464      OPTION_ALLOW_MULTIPLE_DEFINITION},
 465     '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
 466   { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
 467     '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
 468   { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
 469     '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
 470   { {"default-imported-symver", no_argument, NULL,
 471       OPTION_DEFAULT_IMPORTED_SYMVER},
 472     '\0', NULL, N_("Create default symbol version for imported symbols"),
 473     TWO_DASHES },
 474   { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
 475     '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
 476   { {"no-warn-search-mismatch", no_argument, NULL,
 477      OPTION_NO_WARN_SEARCH_MISMATCH},
 478     '\0', NULL, N_("Don't warn on finding an incompatible library"),
 479     TWO_DASHES},
 480   { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
 481     '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
 482   { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 483     '\0', NULL, N_("Create an output file even if errors occur"),
 484     TWO_DASHES },
 485   { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 486     '\0', NULL, NULL, NO_HELP },
 487   { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
 488     '\0', NULL, N_("Only use library directories specified on\n"
 489                    "                                the command line"),
 490     ONE_DASH },
 491   { {"oformat", required_argument, NULL, OPTION_OFORMAT},
 492     '\0', N_("TARGET"), N_("Specify target of output file"),
 493     EXACTLY_TWO_DASHES },
 494   { {"qmagic", no_argument, NULL, OPTION_IGNORE},
 495     '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
 496   { {"reduce-memory-overheads", no_argument, NULL,
 497      OPTION_REDUCE_MEMORY_OVERHEADS},
 498     '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
 499     TWO_DASHES },
 500   { {"relax", no_argument, NULL, OPTION_RELAX},
 501     '\0', NULL, N_("Reduce code size by using target specific optimizations"), TWO_DASHES },
 502   { {"no-relax", no_argument, NULL, OPTION_NO_RELAX},
 503     '\0', NULL, N_("Do not use relaxation techniques to reduce code size"), TWO_DASHES },
 504   { {"retain-symbols-file", required_argument, NULL,
 505      OPTION_RETAIN_SYMBOLS_FILE},
 506     '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
 507   { {"rpath", required_argument, NULL, OPTION_RPATH},
 508     '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
 509   { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
 510     '\0', N_("PATH"), N_("Set link time shared library search path"),
 511     ONE_DASH },
 512   { {"shared", no_argument, NULL, OPTION_SHARED},
 513     '\0', NULL, N_("Create a shared library"), ONE_DASH },
 514   { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD.  */
 515     '\0', NULL, NULL, ONE_DASH },
 516   { {"pie", no_argument, NULL, OPTION_PIE},
 517     '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
 518   { {"pic-executable", no_argument, NULL, OPTION_PIE},
 519     '\0', NULL, NULL, TWO_DASHES },
 520   { {"sort-common", optional_argument, NULL, OPTION_SORT_COMMON},
 521     '\0', N_("[=ascending|descending]"),
 522     N_("Sort common symbols by alignment [in specified order]"),
 523     TWO_DASHES },
 524   { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
 525     '\0', NULL, NULL, NO_HELP },
 526   { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
 527     '\0', N_("name|alignment"),
 528     N_("Sort sections by name or maximum alignment"), TWO_DASHES },
 529   { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
 530     '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
 531     TWO_DASHES },
 532   { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
 533     '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
 534     TWO_DASHES },
 535   { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
 536     '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
 537     TWO_DASHES },
 538   { {"stats", no_argument, NULL, OPTION_STATS},
 539     '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
 540   { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
 541     '\0', NULL, N_("Display target specific options"), TWO_DASHES },
 542   { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
 543     '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
 544   { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
 545     '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
 546   { {"section-start", required_argument, NULL, OPTION_SECTION_START},
 547     '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
 548     TWO_DASHES },
 549   { {"Tbss", required_argument, NULL, OPTION_TBSS},
 550     '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
 551   { {"Tdata", required_argument, NULL, OPTION_TDATA},
 552     '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
 553   { {"Ttext", required_argument, NULL, OPTION_TTEXT},
 554     '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
 555   { {"Ttext-segment", required_argument, NULL, OPTION_TTEXT_SEGMENT},
 556     '\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
 557   { {"unresolved-symbols=<method>", required_argument, NULL,
 558      OPTION_UNRESOLVED_SYMBOLS},
 559     '\0', NULL, N_("How to handle unresolved symbols.  <method> is:\n"
 560                    "                                ignore-all, report-all, ignore-in-object-files,\n"
 561                    "                                ignore-in-shared-libs"),
 562     TWO_DASHES },
 563   { {"verbose", optional_argument, NULL, OPTION_VERBOSE},
 564     '\0', N_("[=NUMBER]"),
 565     N_("Output lots of information during link"), TWO_DASHES },
 566   { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux.  */
 567     '\0', NULL, NULL, NO_HELP },
 568   { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
 569     '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
 570   { {"version-exports-section", required_argument, NULL,
 571      OPTION_VERSION_EXPORTS_SECTION },
 572     '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
 573                            "                                SYMBOL as the version."),
 574     TWO_DASHES },
 575   { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
 576     '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
 577   { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
 578     '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
 579   { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
 580     '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
 581   { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
 582     '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
 583   { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
 584     '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
 585   { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
 586     '\0', NULL, N_("Warn if global constructors/destructors are seen"),
 587     TWO_DASHES },
 588   { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
 589     '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
 590   { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
 591     '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
 592   { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
 593     '\0', NULL, N_("Warn if start of section changes due to alignment"),
 594     TWO_DASHES },
 595   { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
 596     '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
 597     TWO_DASHES },
 598   { {"warn-alternate-em", no_argument, NULL, OPTION_WARN_ALTERNATE_EM},
 599     '\0', NULL, N_("Warn if an object has alternate ELF machine code"),
 600     TWO_DASHES },
 601   { {"warn-unresolved-symbols", no_argument, NULL,
 602      OPTION_WARN_UNRESOLVED_SYMBOLS},
 603     '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
 604   { {"error-unresolved-symbols", no_argument, NULL,
 605      OPTION_ERROR_UNRESOLVED_SYMBOLS},
 606     '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
 607   { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
 608     '\0', NULL, N_("Include all objects from following archives"),
 609     TWO_DASHES },
 610   { {"wrap", required_argument, NULL, OPTION_WRAP},
 611     '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
 612 };
 613
 614 #define OPTION_COUNT ARRAY_SIZE (ld_options)
 615
 616 void
 617 parse_args (unsigned argc, char **argv)
 618 {
 619   unsigned i;
 620   int is, il, irl;
 621   int ingroup = 0;
 622   char *default_dirlist = NULL;
 623   char *shortopts;
 624   struct option *longopts;
 625   struct option *really_longopts;
 626   int last_optind;
 627   enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
 628
 629   shortopts = (char *) xmalloc (OPTION_COUNT * 3 + 2);
 630   longopts = (struct option *)
 631       xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
 632   really_longopts = (struct option *)
 633       malloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
 634
 635   /* Starting the short option string with '-' is for programs that
 636      expect options and other ARGV-elements in any order and that care about
 637      the ordering of the two.  We describe each non-option ARGV-element
 638      as if it were the argument of an option with character code 1.  */
 639   shortopts[0] = '-';
 640   is = 1;
 641   il = 0;
 642   irl = 0;
 643   for (i = 0; i < OPTION_COUNT; i++)
 644     {
 645       if (ld_options[i].shortopt != '\0')
 646         {
 647           shortopts[is] = ld_options[i].shortopt;
 648           ++is;
 649           if (ld_options[i].opt.has_arg == required_argument
 650               || ld_options[i].opt.has_arg == optional_argument)
 651             {
 652               shortopts[is] = ':';
 653               ++is;
 654               if (ld_options[i].opt.has_arg == optional_argument)
 655                 {
 656                   shortopts[is] = ':';
 657                   ++is;
 658                 }
 659             }
 660         }
 661       if (ld_options[i].opt.name != NULL)
 662         {
 663           if (ld_options[i].control == EXACTLY_TWO_DASHES)
 664             {
 665               really_longopts[irl] = ld_options[i].opt;
 666               ++irl;
 667             }
 668           else
 669             {
 670               longopts[il] = ld_options[i].opt;
 671               ++il;
 672             }
 673         }
 674     }
 675   shortopts[is] = '\0';
 676   longopts[il].name = NULL;
 677   really_longopts[irl].name = NULL;
 678
 679   ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
 680
 681   /* The -G option is ambiguous on different platforms.  Sometimes it
 682      specifies the largest data size to put into the small data
 683      section.  Sometimes it is equivalent to --shared.  Unfortunately,
 684      the first form takes an argument, while the second does not.
 685
 686      We need to permit the --shared form because on some platforms,
 687      such as Solaris, gcc -shared will pass -G to the linker.
 688
 689      To permit either usage, we look through the argument list.  If we
 690      find -G not followed by a number, we change it into --shared.
 691      This will work for most normal cases.  */
 692   for (i = 1; i < argc; i++)
 693     if (strcmp (argv[i], "-G") == 0
 694         && (i + 1 >= argc
 695             || ! ISDIGIT (argv[i + 1][0])))
 696       argv[i] = (char *) "--shared";
 697
 698   /* Because we permit long options to start with a single dash, and
 699      we have a --library option, and the -l option is conventionally
 700      used with an immediately following argument, we can have bad
 701      results if somebody tries to use -l with a library whose name
 702      happens to start with "ibrary", as in -li.  We avoid problems by
 703      simply turning -l into --library.  This means that users will
 704      have to use two dashes in order to use --library, which is OK
 705      since that's how it is documented.
 706
 707      FIXME: It's possible that this problem can arise for other short
 708      options as well, although the user does always have the recourse
 709      of adding a space between the option and the argument.  */
 710   for (i = 1; i < argc; i++)
 711     {
 712       if (argv[i][0] == '-'
 713           && argv[i][1] == 'l'
 714           && argv[i][2] != '\0')
 715         {
 716           char *n;
 717
 718           n = (char *) xmalloc (strlen (argv[i]) + 20);
 719           sprintf (n, "--library=%s", argv[i] + 2);
 720           argv[i] = n;
 721         }
 722     }
 723
 724   last_optind = -1;
 725   while (1)
 726     {
 727       int longind;
 728       int optc;
 729
 730       /* Using last_optind lets us avoid calling ldemul_parse_args
 731          multiple times on a single option, which would lead to
 732          confusion in the internal static variables maintained by
 733          getopt.  This could otherwise happen for an argument like
 734          -nx, in which the -n is parsed as a single option, and we
 735          loop around to pick up the -x.  */
 736       if (optind != last_optind)
 737         if (ldemul_parse_args (argc, argv))
 738           continue;
 739
 740       /* getopt_long_only is like getopt_long, but '-' as well as '--'
 741          can indicate a long option.  */
 742       opterr = 0;
 743       last_optind = optind;
 744       optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
 745       if (optc == '?')
 746         {
 747           optind = last_optind;
 748           optc = getopt_long (argc, argv, "-", really_longopts, &longind);
 749         }
 750
 751       if (ldemul_handle_option (optc))
 752         continue;
 753
 754       if (optc == -1)
 755         break;
 756
 757       switch (optc)
 758         {
 759         case '?':
 760           einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
 761           /* Fall through.  */
 762
 763         default:
 764           einfo (_("%P%F: use the --help option for usage information\n"));
 765
 766         case 1:                 /* File name.  */
 767           lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
 768           break;
 769
 770         case OPTION_IGNORE:
 771           break;
 772         case 'a':
 773           /* For HP/UX compatibility.  Actually -a shared should mean
 774              ``use only shared libraries'' but, then, we don't
 775              currently support shared libraries on HP/UX anyhow.  */
 776           if (strcmp (optarg, "archive") == 0)
 777             config.dynamic_link = FALSE;
 778           else if (strcmp (optarg, "shared") == 0
 779                    || strcmp (optarg, "default") == 0)
 780             config.dynamic_link = TRUE;
 781           else
 782             einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
 783           break;
 784         case OPTION_ASSERT:
 785           /* FIXME: We just ignore these, but we should handle them.  */
 786           if (strcmp (optarg, "definitions") == 0)
 787             ;
 788           else if (strcmp (optarg, "nodefinitions") == 0)
 789             ;
 790           else if (strcmp (optarg, "nosymbolic") == 0)
 791             ;
 792           else if (strcmp (optarg, "pure-text") == 0)
 793             ;
 794           else
 795             einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
 796           break;
 797         case 'A':
 798           ldfile_add_arch (optarg);
 799           break;
 800         case 'b':
 801           lang_add_target (optarg);
 802           break;
 803         case 'c':
 804           ldfile_open_command_file (optarg);
 805           parser_input = input_mri_script;
 806           yyparse ();
 807           break;
 808         case OPTION_CALL_SHARED:
 809           config.dynamic_link = TRUE;
 810           break;
 811         case OPTION_NON_SHARED:
 812           config.dynamic_link = FALSE;
 813           break;
 814         case OPTION_CREF:
 815           command_line.cref = TRUE;
 816           link_info.notice_all = TRUE;
 817           break;
 818         case 'd':
 819           command_line.force_common_definition = TRUE;
 820           break;
 821         case OPTION_DEFSYM:
 822           lex_string = optarg;
 823           lex_redirect (optarg);
 824           parser_input = input_defsym;
 825           parsing_defsym = 1;
 826           yyparse ();
 827           parsing_defsym = 0;
 828           lex_string = NULL;
 829           break;
 830         case OPTION_DEMANGLE:
 831           demangling = TRUE;
 832           if (optarg != NULL)
 833             {
 834               enum demangling_styles style;
 835
 836               style = cplus_demangle_name_to_style (optarg);
 837               if (style == unknown_demangling)
 838                 einfo (_("%F%P: unknown demangling style `%s'"),
 839                        optarg);
 840
 841               cplus_demangle_set_style (style);
 842             }
 843           break;
 844         case 'I':               /* Used on Solaris.  */
 845         case OPTION_DYNAMIC_LINKER:
 846           command_line.interpreter = optarg;
 847           break;
 848         case OPTION_SYSROOT:
 849           /* Already handled in ldmain.c.  */
 850           break;
 851         case OPTION_EB:
 852           command_line.endian = ENDIAN_BIG;
 853           break;
 854         case OPTION_EL:
 855           command_line.endian = ENDIAN_LITTLE;
 856           break;
 857         case OPTION_EMBEDDED_RELOCS:
 858           command_line.embedded_relocs = TRUE;
 859           break;
 860         case OPTION_EXPORT_DYNAMIC:
 861         case 'E': /* HP/UX compatibility.  */
 862           link_info.export_dynamic = TRUE;
 863           break;
 864         case OPTION_NO_EXPORT_DYNAMIC:
 865           link_info.export_dynamic = FALSE;
 866           break;
 867         case 'e':
 868           lang_add_entry (optarg, TRUE);
 869           break;
 870         case 'f':
 871           if (command_line.auxiliary_filters == NULL)
 872             {
 873               command_line.auxiliary_filters = (char **)
 874                   xmalloc (2 * sizeof (char *));
 875               command_line.auxiliary_filters[0] = optarg;
 876               command_line.auxiliary_filters[1] = NULL;
 877             }
 878           else
 879             {
 880               int c;
 881               char **p;
 882
 883               c = 0;
 884               for (p = command_line.auxiliary_filters; *p != NULL; p++)
 885                 ++c;
 886               command_line.auxiliary_filters = (char **)
 887                   xrealloc (command_line.auxiliary_filters,
 888                             (c + 2) * sizeof (char *));
 889               command_line.auxiliary_filters[c] = optarg;
 890               command_line.auxiliary_filters[c + 1] = NULL;
 891             }
 892           break;
 893         case 'F':
 894           command_line.filter_shlib = optarg;
 895           break;
 896         case OPTION_FORCE_EXE_SUFFIX:
 897           command_line.force_exe_suffix = TRUE;
 898           break;
 899         case 'G':
 900           {
 901             char *end;
 902             g_switch_value = strtoul (optarg, &end, 0);
 903             if (*end)
 904               einfo (_("%P%F: invalid number `%s'\n"), optarg);
 905           }
 906           break;
 907         case 'g':
 908           /* Ignore.  */
 909           break;
 910         case OPTION_GC_SECTIONS:
 911           link_info.gc_sections = TRUE;
 912           break;
 913         case OPTION_PRINT_GC_SECTIONS:
 914           link_info.print_gc_sections = TRUE;
 915           break;
 916         case OPTION_HELP:
 917           help ();
 918           xexit (0);
 919           break;
 920         case 'L':
 921           ldfile_add_library_path (optarg, TRUE);
 922           break;
 923         case 'l':
 924           lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
 925           break;
 926         case 'M':
 927           config.map_filename = "-";
 928           break;
 929         case 'm':
 930           /* Ignore.  Was handled in a pre-parse.   */
 931           break;
 932         case OPTION_MAP:
 933           config.map_filename = optarg;
 934           break;
 935         case 'N':
 936           config.text_read_only = FALSE;
 937           config.magic_demand_paged = FALSE;
 938           config.dynamic_link = FALSE;
 939           break;
 940         case OPTION_NO_OMAGIC:
 941           config.text_read_only = TRUE;
 942           config.magic_demand_paged = TRUE;
 943           /* NB/ Does not set dynamic_link to TRUE.
 944              Use --call-shared or -Bdynamic for this.  */
 945           break;
 946         case 'n':
 947           config.magic_demand_paged = FALSE;
 948           config.dynamic_link = FALSE;
 949           break;
 950         case OPTION_NO_DEFINE_COMMON:
 951           command_line.inhibit_common_definition = TRUE;
 952           break;
 953         case OPTION_NO_DEMANGLE:
 954           demangling = FALSE;
 955           break;
 956         case OPTION_NO_GC_SECTIONS:
 957           link_info.gc_sections = FALSE;
 958           break;
 959         case OPTION_NO_PRINT_GC_SECTIONS:
 960           link_info.print_gc_sections = FALSE;
 961           break;
 962         case OPTION_NO_KEEP_MEMORY:
 963           link_info.keep_memory = FALSE;
 964           break;
 965         case OPTION_NO_UNDEFINED:
 966           link_info.unresolved_syms_in_objects
 967             = how_to_report_unresolved_symbols;
 968           break;
 969         case OPTION_ALLOW_SHLIB_UNDEFINED:
 970           link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 971           break;
 972         case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
 973           link_info.unresolved_syms_in_shared_libs
 974             = how_to_report_unresolved_symbols;
 975           break;
 976         case OPTION_UNRESOLVED_SYMBOLS:
 977           if (strcmp (optarg, "ignore-all") == 0)
 978             {
 979               link_info.unresolved_syms_in_objects = RM_IGNORE;
 980               link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 981             }
 982           else if (strcmp (optarg, "report-all") == 0)
 983             {
 984               link_info.unresolved_syms_in_objects
 985                 = how_to_report_unresolved_symbols;
 986               link_info.unresolved_syms_in_shared_libs
 987                 = how_to_report_unresolved_symbols;
 988             }
 989           else if (strcmp (optarg, "ignore-in-object-files") == 0)
 990             {
 991               link_info.unresolved_syms_in_objects = RM_IGNORE;
 992               link_info.unresolved_syms_in_shared_libs
 993                 = how_to_report_unresolved_symbols;
 994             }
 995           else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
 996             {
 997               link_info.unresolved_syms_in_objects
 998                 = how_to_report_unresolved_symbols;
 999               link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1000             }
1001           else
1002             einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
1003           break;
1004         case OPTION_WARN_UNRESOLVED_SYMBOLS:
1005           how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
1006           if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
1007             link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
1008           if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
1009             link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
1010           break;
1011
1012         case OPTION_ERROR_UNRESOLVED_SYMBOLS:
1013           how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
1014           if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
1015             link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
1016           if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
1017             link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
1018           break;
1019         case OPTION_ALLOW_MULTIPLE_DEFINITION:
1020           link_info.allow_multiple_definition = TRUE;
1021           break;
1022         case OPTION_NO_UNDEFINED_VERSION:
1023           link_info.allow_undefined_version = FALSE;
1024           break;
1025         case OPTION_DEFAULT_SYMVER:
1026           link_info.create_default_symver = TRUE;
1027           break;
1028         case OPTION_DEFAULT_IMPORTED_SYMVER:
1029           link_info.default_imported_symver = TRUE;
1030           break;
1031         case OPTION_NO_WARN_MISMATCH:
1032           command_line.warn_mismatch = FALSE;
1033           break;
1034         case OPTION_NO_WARN_SEARCH_MISMATCH:
1035           command_line.warn_search_mismatch = FALSE;
1036           break;
1037         case OPTION_NOINHIBIT_EXEC:
1038           force_make_executable = TRUE;
1039           break;
1040         case OPTION_NOSTDLIB:
1041           config.only_cmd_line_lib_dirs = TRUE;
1042           break;
1043         case OPTION_NO_WHOLE_ARCHIVE:
1044           whole_archive = FALSE;
1045           break;
1046         case 'O':
1047           /* FIXME "-O<non-digits> <value>" used to set the address of
1048              section <non-digits>.  Was this for compatibility with
1049              something, or can we create a new option to do that
1050              (with a syntax similar to -defsym)?
1051              getopt can't handle two args to an option without kludges.  */
1052
1053           /* Enable optimizations of output files.  */
1054           link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
1055           break;
1056         case 'o':
1057           lang_add_output (optarg, 0);
1058           break;
1059         case OPTION_OFORMAT:
1060           lang_add_output_format (optarg, NULL, NULL, 0);
1061           break;
1062 #ifdef ENABLE_PLUGINS
1063         case OPTION_PLUGIN:
1064           if (plugin_opt_plugin (optarg))
1065             einfo (_("%P%F: %s: error loading plugin\n"),
1066                    plugin_error_plugin ());
1067           break;
1068         case OPTION_PLUGIN_OPT:
1069           if (plugin_opt_plugin_arg (optarg))
1070             einfo(_("%P%F: bad -plugin-opt option\n"));
1071           break;
1072 #endif /* ENABLE_PLUGINS */
1073         case 'q':
1074           link_info.emitrelocations = TRUE;
1075           break;
1076         case 'i':
1077         case 'r':
1078           if (optind == last_optind)
1079             /* This can happen if the user put "-rpath,a" on the command
1080                line.  (Or something similar.  The comma is important).
1081                Getopt becomes confused and thinks that this is a -r option
1082                but it cannot parse the text after the -r so it refuses to
1083                increment the optind counter.  Detect this case and issue
1084                an error message here.  We cannot just make this a warning,
1085                increment optind, and continue because getopt is too confused
1086                and will seg-fault the next time around.  */
1087             einfo(_("%P%F: bad -rpath option\n"));
1088
1089           link_info.relocatable = TRUE;
1090           config.build_constructors = FALSE;
1091           config.magic_demand_paged = FALSE;
1092           config.text_read_only = FALSE;
1093           config.dynamic_link = FALSE;
1094           break;
1095         case 'R':
1096           /* The GNU linker traditionally uses -R to mean to include
1097              only the symbols from a file.  The Solaris linker uses -R
1098              to set the path used by the runtime linker to find
1099              libraries.  This is the GNU linker -rpath argument.  We
1100              try to support both simultaneously by checking the file
1101              named.  If it is a directory, rather than a regular file,
1102              we assume -rpath was meant.  */
1103           {
1104             struct stat s;
1105
1106             if (stat (optarg, &s) >= 0
1107                 && ! S_ISDIR (s.st_mode))
1108               {
1109                 lang_add_input_file (optarg,
1110                                      lang_input_file_is_symbols_only_enum,
1111                                      NULL);
1112                 break;
1113               }
1114           }
1115           /* Fall through.  */
1116         case OPTION_RPATH:
1117           if (command_line.rpath == NULL)
1118             command_line.rpath = xstrdup (optarg);
1119           else
1120             {
1121               size_t rpath_len = strlen (command_line.rpath);
1122               size_t optarg_len = strlen (optarg);
1123               char *buf;
1124               char *cp = command_line.rpath;
1125
1126               /* First see whether OPTARG is already in the path.  */
1127               do
1128                 {
1129                   if (strncmp (optarg, cp, optarg_len) == 0
1130                       && (cp[optarg_len] == 0
1131                           || cp[optarg_len] == config.rpath_separator))
1132                     /* We found it.  */
1133                     break;
1134
1135                   /* Not yet found.  */
1136                   cp = strchr (cp, config.rpath_separator);
1137                   if (cp != NULL)
1138                     ++cp;
1139                 }
1140               while (cp != NULL);
1141
1142               if (cp == NULL)
1143                 {
1144                   buf = (char *) xmalloc (rpath_len + optarg_len + 2);
1145                   sprintf (buf, "%s%c%s", command_line.rpath,
1146                            config.rpath_separator, optarg);
1147                   free (command_line.rpath);
1148                   command_line.rpath = buf;
1149                 }
1150             }
1151           break;
1152         case OPTION_RPATH_LINK:
1153           if (command_line.rpath_link == NULL)
1154             command_line.rpath_link = xstrdup (optarg);
1155           else
1156             {
1157               char *buf;
1158
1159               buf = (char *) xmalloc (strlen (command_line.rpath_link)
1160                                       + strlen (optarg)
1161                                       + 2);
1162               sprintf (buf, "%s%c%s", command_line.rpath_link,
1163                        config.rpath_separator, optarg);
1164               free (command_line.rpath_link);
1165               command_line.rpath_link = buf;
1166             }
1167           break;
1168         case OPTION_NO_RELAX:
1169           DISABLE_RELAXATION;
1170           break;
1171         case OPTION_RELAX:
1172           ENABLE_RELAXATION;
1173           break;
1174         case OPTION_RETAIN_SYMBOLS_FILE:
1175           add_keepsyms_file (optarg);
1176           break;
1177         case 'S':
1178           link_info.strip = strip_debugger;
1179           break;
1180         case 's':
1181           link_info.strip = strip_all;
1182           break;
1183         case OPTION_STRIP_DISCARDED:
1184           link_info.strip_discarded = TRUE;
1185           break;
1186         case OPTION_NO_STRIP_DISCARDED:
1187           link_info.strip_discarded = FALSE;
1188           break;
1189         case OPTION_SHARED:
1190           if (config.has_shared)
1191             {
1192               link_info.shared = TRUE;
1193               /* When creating a shared library, the default
1194                  behaviour is to ignore any unresolved references.  */
1195               if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1196                 link_info.unresolved_syms_in_objects = RM_IGNORE;
1197               if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1198                 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1199             }
1200           else
1201             einfo (_("%P%F: -shared not supported\n"));
1202           break;
1203         case OPTION_PIE:
1204           if (config.has_shared)
1205             {
1206               link_info.shared = TRUE;
1207               link_info.pie = TRUE;
1208             }
1209           else
1210             einfo (_("%P%F: -pie not supported\n"));
1211           break;
1212         case 'h':               /* Used on Solaris.  */
1213         case OPTION_SONAME:
1214           command_line.soname = optarg;
1215           break;
1216         case OPTION_SORT_COMMON:
1217           if (optarg == NULL
1218               || strcmp (optarg, N_("descending")) == 0)
1219             config.sort_common = sort_descending;
1220           else if (strcmp (optarg, N_("ascending")) == 0)
1221             config.sort_common = sort_ascending;
1222           else
1223             einfo (_("%P%F: invalid common section sorting option: %s\n"),
1224                    optarg);
1225           break;
1226         case OPTION_SORT_SECTION:
1227           if (strcmp (optarg, N_("name")) == 0)
1228             sort_section = by_name;
1229           else if (strcmp (optarg, N_("alignment")) == 0)
1230             sort_section = by_alignment;
1231           else
1232             einfo (_("%P%F: invalid section sorting option: %s\n"),
1233                    optarg);
1234           break;
1235         case OPTION_STATS:
1236           config.stats = TRUE;
1237           break;
1238         case OPTION_SYMBOLIC:
1239           command_line.symbolic = symbolic;
1240           break;
1241         case OPTION_SYMBOLIC_FUNCTIONS:
1242           command_line.symbolic = symbolic_functions;
1243           break;
1244         case 't':
1245           trace_files = TRUE;
1246           break;
1247         case 'T':
1248           previous_script_handle = saved_script_handle;
1249           ldfile_open_command_file (optarg);
1250           parser_input = input_script;
1251           yyparse ();
1252           previous_script_handle = NULL;
1253           break;
1254         case OPTION_DEFAULT_SCRIPT:
1255           command_line.default_script = optarg;
1256           break;
1257         case OPTION_SECTION_START:
1258           {
1259             char *optarg2;
1260             char *sec_name;
1261             int len;
1262
1263             /* Check for <something>=<somthing>...  */
1264             optarg2 = strchr (optarg, '=');
1265             if (optarg2 == NULL)
1266               einfo (_("%P%F: invalid argument to option"
1267                        " \"--section-start\"\n"));
1268
1269             optarg2++;
1270
1271             /* So far so good.  Are all the args present?  */
1272             if ((*optarg == '\0') || (*optarg2 == '\0'))
1273               einfo (_("%P%F: missing argument(s) to option"
1274                        " \"--section-start\"\n"));
1275
1276             /* We must copy the section name as set_section_start
1277                doesn't do it for us.  */
1278             len = optarg2 - optarg;
1279             sec_name = (char *) xmalloc (len);
1280             memcpy (sec_name, optarg, len - 1);
1281             sec_name[len - 1] = 0;
1282
1283             /* Then set it...  */
1284             set_section_start (sec_name, optarg2);
1285           }
1286           break;
1287         case OPTION_TARGET_HELP:
1288           /* Mention any target specific options.  */
1289           ldemul_list_emulation_options (stdout);
1290           exit (0);
1291         case OPTION_TBSS:
1292           set_segment_start (".bss", optarg);
1293           break;
1294         case OPTION_TDATA:
1295           set_segment_start (".data", optarg);
1296           break;
1297         case OPTION_TTEXT:
1298           set_segment_start (".text", optarg);
1299           break;
1300         case OPTION_TTEXT_SEGMENT:
1301           set_segment_start (".text-segment", optarg);
1302           break;
1303         case OPTION_TRADITIONAL_FORMAT:
1304           link_info.traditional_format = TRUE;
1305           break;
1306         case OPTION_TASK_LINK:
1307           link_info.task_link = TRUE;
1308           /* Fall through - do an implied -r option.  */
1309         case OPTION_UR:
1310           link_info.relocatable = TRUE;
1311           config.build_constructors = TRUE;
1312           config.magic_demand_paged = FALSE;
1313           config.text_read_only = FALSE;
1314           config.dynamic_link = FALSE;
1315           break;
1316         case 'u':
1317           ldlang_add_undef (optarg, TRUE);
1318           break;
1319         case OPTION_UNIQUE:
1320           if (optarg != NULL)
1321             lang_add_unique (optarg);
1322           else
1323             config.unique_orphan_sections = TRUE;
1324           break;
1325         case OPTION_VERBOSE:
1326           ldversion (1);
1327           version_printed = TRUE;
1328           trace_file_tries = TRUE;
1329           overflow_cutoff_limit = -2;
1330           if (optarg != NULL)
1331             {
1332               char *end;
1333               int level = strtoul (optarg, &end, 0);
1334               if (*end)
1335                 einfo (_("%P%F: invalid number `%s'\n"), optarg);
1336               report_plugin_symbols = level > 1;
1337             }
1338           break;
1339         case 'v':
1340           ldversion (0);
1341           version_printed = TRUE;
1342           break;
1343         case 'V':
1344           ldversion (1);
1345           version_printed = TRUE;
1346           break;
1347         case OPTION_VERSION:
1348           ldversion (2);
1349           xexit (0);
1350           break;
1351         case OPTION_VERSION_SCRIPT:
1352           /* This option indicates a small script that only specifies
1353              version information.  Read it, but don't assume that
1354              we've seen a linker script.  */
1355           {
1356             FILE *hold_script_handle;
1357
1358             hold_script_handle = saved_script_handle;
1359             ldfile_open_command_file (optarg);
1360             saved_script_handle = hold_script_handle;
1361             parser_input = input_version_script;
1362             yyparse ();
1363           }
1364           break;
1365         case OPTION_VERSION_EXPORTS_SECTION:
1366           /* This option records a version symbol to be applied to the
1367              symbols listed for export to be found in the object files
1368              .exports sections.  */
1369           command_line.version_exports_section = optarg;
1370           break;
1371         case OPTION_DYNAMIC_LIST_DATA:
1372           command_line.dynamic_list = dynamic_list_data;
1373           if (command_line.symbolic == symbolic)
1374             command_line.symbolic = symbolic_unset;
1375           break;
1376         case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1377           lang_append_dynamic_list_cpp_typeinfo ();
1378           if (command_line.dynamic_list != dynamic_list_data)
1379             command_line.dynamic_list = dynamic_list;
1380           if (command_line.symbolic == symbolic)
1381             command_line.symbolic = symbolic_unset;
1382           break;
1383         case OPTION_DYNAMIC_LIST_CPP_NEW:
1384           lang_append_dynamic_list_cpp_new ();
1385           if (command_line.dynamic_list != dynamic_list_data)
1386             command_line.dynamic_list = dynamic_list;
1387           if (command_line.symbolic == symbolic)
1388             command_line.symbolic = symbolic_unset;
1389           break;
1390         case OPTION_DYNAMIC_LIST:
1391           /* This option indicates a small script that only specifies
1392              a dynamic list.  Read it, but don't assume that we've
1393              seen a linker script.  */
1394           {
1395             FILE *hold_script_handle;
1396
1397             hold_script_handle = saved_script_handle;
1398             ldfile_open_command_file (optarg);
1399             saved_script_handle = hold_script_handle;
1400             parser_input = input_dynamic_list;
1401             yyparse ();
1402           }
1403           if (command_line.dynamic_list != dynamic_list_data)
1404             command_line.dynamic_list = dynamic_list;
1405           if (command_line.symbolic == symbolic)
1406             command_line.symbolic = symbolic_unset;
1407           break;
1408         case OPTION_WARN_COMMON:
1409           config.warn_common = TRUE;
1410           break;
1411         case OPTION_WARN_CONSTRUCTORS:
1412           config.warn_constructors = TRUE;
1413           break;
1414         case OPTION_WARN_FATAL:
1415           config.fatal_warnings = TRUE;
1416           break;
1417         case OPTION_NO_WARN_FATAL:
1418           config.fatal_warnings = FALSE;
1419           break;
1420         case OPTION_WARN_MULTIPLE_GP:
1421           config.warn_multiple_gp = TRUE;
1422           break;
1423         case OPTION_WARN_ONCE:
1424           config.warn_once = TRUE;
1425           break;
1426         case OPTION_WARN_SECTION_ALIGN:
1427           config.warn_section_align = TRUE;
1428           break;
1429         case OPTION_WARN_SHARED_TEXTREL:
1430           link_info.warn_shared_textrel = TRUE;
1431           break;
1432         case OPTION_WARN_ALTERNATE_EM:
1433           link_info.warn_alternate_em = TRUE;
1434           break;
1435         case OPTION_WHOLE_ARCHIVE:
1436           whole_archive = TRUE;
1437           break;
1438         case OPTION_ADD_DT_NEEDED_FOR_DYNAMIC:
1439           add_DT_NEEDED_for_dynamic = TRUE;
1440           break;
1441         case OPTION_NO_ADD_DT_NEEDED_FOR_DYNAMIC:
1442           add_DT_NEEDED_for_dynamic = FALSE;
1443           break;
1444         case OPTION_ADD_DT_NEEDED_FOR_REGULAR:
1445           add_DT_NEEDED_for_regular = TRUE;
1446           break;
1447         case OPTION_NO_ADD_DT_NEEDED_FOR_REGULAR:
1448           add_DT_NEEDED_for_regular = FALSE;
1449           break;
1450         case OPTION_WRAP:
1451           add_wrap (optarg);
1452           break;
1453         case OPTION_DISCARD_NONE:
1454           link_info.discard = discard_none;
1455           break;
1456         case 'X':
1457           link_info.discard = discard_l;
1458           break;
1459         case 'x':
1460           link_info.discard = discard_all;
1461           break;
1462         case 'Y':
1463           if (CONST_STRNEQ (optarg, "P,"))
1464             optarg += 2;
1465           if (default_dirlist != NULL)
1466             free (default_dirlist);
1467           default_dirlist = xstrdup (optarg);
1468           break;
1469         case 'y':
1470           add_ysym (optarg);
1471           break;
1472         case OPTION_SPARE_DYNAMIC_TAGS:
1473           link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1474           break;
1475         case OPTION_SPLIT_BY_RELOC:
1476           if (optarg != NULL)
1477             config.split_by_reloc = strtoul (optarg, NULL, 0);
1478           else
1479             config.split_by_reloc = 32768;
1480           break;
1481         case OPTION_SPLIT_BY_FILE:
1482           if (optarg != NULL)
1483             config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1484           else
1485             config.split_by_file = 1;
1486           break;
1487         case OPTION_CHECK_SECTIONS:
1488           command_line.check_section_addresses = 1;
1489           break;
1490         case OPTION_NO_CHECK_SECTIONS:
1491           command_line.check_section_addresses = 0;
1492           break;
1493         case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1494           command_line.accept_unknown_input_arch = TRUE;
1495           break;
1496         case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1497           command_line.accept_unknown_input_arch = FALSE;
1498           break;
1499         case '(':
1500           lang_enter_group ();
1501           ingroup++;
1502           break;
1503         case ')':
1504           if (! ingroup)
1505             einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1506
1507           lang_leave_group ();
1508           ingroup--;
1509           break;
1510
1511         case OPTION_INIT:
1512           link_info.init_function = optarg;
1513           break;
1514
1515         case OPTION_FINI:
1516           link_info.fini_function = optarg;
1517           break;
1518
1519         case OPTION_REDUCE_MEMORY_OVERHEADS:
1520           link_info.reduce_memory_overheads = TRUE;
1521           if (config.hash_table_size == 0)
1522             config.hash_table_size = 1021;
1523           break;
1524
1525         case OPTION_HASH_SIZE:
1526           {
1527             bfd_size_type new_size;
1528
1529             new_size = strtoul (optarg, NULL, 0);
1530             if (new_size)
1531               config.hash_table_size = new_size;
1532             else
1533               einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1534           }
1535           break;
1536         }
1537     }
1538
1539   while (ingroup)
1540     {
1541       lang_leave_group ();
1542       ingroup--;
1543     }
1544
1545   if (default_dirlist != NULL)
1546     {
1547       set_default_dirlist (default_dirlist);
1548       free (default_dirlist);
1549     }
1550
1551   if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1552     /* FIXME: Should we allow emulations a chance to set this ?  */
1553     link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1554
1555   if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1556     /* FIXME: Should we allow emulations a chance to set this ?  */
1557     link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1558
1559 #ifdef ENABLE_PLUGINS
1560   /* Now all the plugin arguments have been gathered, we can load them.  */
1561   if (plugin_load_plugins ())
1562     einfo (_("%P%F: %s: error loading plugin\n"), plugin_error_plugin ());
1563 #endif /* ENABLE_PLUGINS */
1564 }
1565
1566 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1567    library search path.  */
1568
1569 static void
1570 set_default_dirlist (char *dirlist_ptr)
1571 {
1572   char *p;
1573
1574   while (1)
1575     {
1576       p = strchr (dirlist_ptr, PATH_SEPARATOR);
1577       if (p != NULL)
1578         *p = '\0';
1579       if (*dirlist_ptr != '\0')
1580         ldfile_add_library_path (dirlist_ptr, TRUE);
1581       if (p == NULL)
1582         break;
1583       dirlist_ptr = p + 1;
1584     }
1585 }
1586
1587 static void
1588 set_section_start (char *sect, char *valstr)
1589 {
1590   const char *end;
1591   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1592   if (*end)
1593     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1594   lang_section_start (sect, exp_intop (val), NULL);
1595 }
1596
1597 static void
1598 set_segment_start (const char *section, char *valstr)
1599 {
1600   const char *name;
1601   const char *end;
1602   segment_type *seg;
1603
1604   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1605   if (*end)
1606     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1607   /* If we already have an entry for this segment, update the existing
1608      value.  */
1609   name = section + 1;
1610   for (seg = segments; seg; seg = seg->next)
1611     if (strcmp (seg->name, name) == 0)
1612       {
1613         seg->value = val;
1614         return;
1615       }
1616   /* There was no existing value so we must create a new segment
1617      entry.  */
1618   seg = (segment_type *) stat_alloc (sizeof (*seg));
1619   seg->name = name;
1620   seg->value = val;
1621   seg->used = FALSE;
1622   /* Add it to the linked list of segments.  */
1623   seg->next = segments;
1624   segments = seg;
1625   /* Historically, -Ttext and friends set the base address of a
1626      particular section.  For backwards compatibility, we still do
1627      that.  If a SEGMENT_START directive is seen, the section address
1628      assignment will be disabled.  */
1629   lang_section_start (section, exp_intop (val), seg);
1630 }
1631
1632 \f
1633 /* Print help messages for the options.  */
1634
1635 static void
1636 help (void)
1637 {
1638   unsigned i;
1639   const char **targets, **pp;
1640   int len;
1641
1642   printf (_("Usage: %s [options] file...\n"), program_name);
1643
1644   printf (_("Options:\n"));
1645   for (i = 0; i < OPTION_COUNT; i++)
1646     {
1647       if (ld_options[i].doc != NULL)
1648         {
1649           bfd_boolean comma;
1650           unsigned j;
1651
1652           printf ("  ");
1653
1654           comma = FALSE;
1655           len = 2;
1656
1657           j = i;
1658           do
1659             {
1660               if (ld_options[j].shortopt != '\0'
1661                   && ld_options[j].control != NO_HELP)
1662                 {
1663                   printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1664                   len += (comma ? 2 : 0) + 2;
1665                   if (ld_options[j].arg != NULL)
1666                     {
1667                       if (ld_options[j].opt.has_arg != optional_argument)
1668                         {
1669                           printf (" ");
1670                           ++len;
1671                         }
1672                       printf ("%s", _(ld_options[j].arg));
1673                       len += strlen (_(ld_options[j].arg));
1674                     }
1675                   comma = TRUE;
1676                 }
1677               ++j;
1678             }
1679           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1680
1681           j = i;
1682           do
1683             {
1684               if (ld_options[j].opt.name != NULL
1685                   && ld_options[j].control != NO_HELP)
1686                 {
1687                   int two_dashes =
1688                     (ld_options[j].control == TWO_DASHES
1689                      || ld_options[j].control == EXACTLY_TWO_DASHES);
1690
1691                   printf ("%s-%s%s",
1692                           comma ? ", " : "",
1693                           two_dashes ? "-" : "",
1694                           ld_options[j].opt.name);
1695                   len += ((comma ? 2 : 0)
1696                           + 1
1697                           + (two_dashes ? 1 : 0)
1698                           + strlen (ld_options[j].opt.name));
1699                   if (ld_options[j].arg != NULL)
1700                     {
1701                       printf (" %s", _(ld_options[j].arg));
1702                       len += 1 + strlen (_(ld_options[j].arg));
1703                     }
1704                   comma = TRUE;
1705                 }
1706               ++j;
1707             }
1708           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1709
1710           if (len >= 30)
1711             {
1712               printf ("\n");
1713               len = 0;
1714             }
1715
1716           for (; len < 30; len++)
1717             putchar (' ');
1718
1719           printf ("%s\n", _(ld_options[i].doc));
1720         }
1721     }
1722   printf (_("  @FILE"));
1723   for (len = strlen ("  @FILE"); len < 30; len++)
1724     putchar (' ');
1725   printf (_("Read options from FILE\n"));
1726
1727   /* Note: Various tools (such as libtool) depend upon the
1728      format of the listings below - do not change them.  */
1729   /* xgettext:c-format */
1730   printf (_("%s: supported targets:"), program_name);
1731   targets = bfd_target_list ();
1732   for (pp = targets; *pp != NULL; pp++)
1733     printf (" %s", *pp);
1734   free (targets);
1735   printf ("\n");
1736
1737   /* xgettext:c-format */
1738   printf (_("%s: supported emulations: "), program_name);
1739   ldemul_list_emulations (stdout);
1740   printf ("\n");
1741
1742   /* xgettext:c-format */
1743   printf (_("%s: emulation specific options:\n"), program_name);
1744   ldemul_list_emulation_options (stdout);
1745   printf ("\n");
1746
1747   if (REPORT_BUGS_TO[0])
1748     printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
1749 }