ld/lexsup.c

   1 /* Parse options for the GNU linker.
   2    Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   3    2001, 2002, 2003, 2004, 2005, 2006, 2007
   4    Free Software Foundation, Inc.
   5
   6    This file is part of the GNU Binutils.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23 #include "sysdep.h"
  24 #include "bfd.h"
  25 #include "bfdver.h"
  26 #include "libiberty.h"
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include "safe-ctype.h"
  30 #include "getopt.h"
  31 #include "bfdlink.h"
  32 #include "ld.h"
  33 #include "ldmain.h"
  34 #include "ldmisc.h"
  35 #include "ldexp.h"
  36 #include "ldlang.h"
  37 #include <ldgram.h>
  38 #include "ldlex.h"
  39 #include "ldfile.h"
  40 #include "ldver.h"
  41 #include "ldemul.h"
  42 #include "demangle.h"
  43
  44 #ifndef PATH_SEPARATOR
  45 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
  46 #define PATH_SEPARATOR ';'
  47 #else
  48 #define PATH_SEPARATOR ':'
  49 #endif
  50 #endif
  51
  52 /* Somewhere above, sys/stat.h got included . . . .  */
  53 #if !defined(S_ISDIR) && defined(S_IFDIR)
  54 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
  55 #endif
  56
  57 static void set_default_dirlist (char *);
  58 static void set_section_start (char *, char *);
  59 static void set_segment_start (const char *, char *);
  60 static void help (void);
  61
  62 /* Non-zero if we are processing a --defsym from the command line.  */
  63 int parsing_defsym = 0;
  64
  65 /* Codes used for the long options with no short synonyms.  150 isn't
  66    special; it's just an arbitrary non-ASCII char value.  */
  67 enum option_values
  68 {
  69   OPTION_ASSERT = 150,
  70   OPTION_CALL_SHARED,
  71   OPTION_CREF,
  72   OPTION_DEFSYM,
  73   OPTION_DEMANGLE,
  74   OPTION_DYNAMIC_LINKER,
  75   OPTION_SYSROOT,
  76   OPTION_EB,
  77   OPTION_EL,
  78   OPTION_EMBEDDED_RELOCS,
  79   OPTION_EXPORT_DYNAMIC,
  80   OPTION_HELP,
  81   OPTION_IGNORE,
  82   OPTION_MAP,
  83   OPTION_NO_DEMANGLE,
  84   OPTION_NO_KEEP_MEMORY,
  85   OPTION_NO_WARN_MISMATCH,
  86   OPTION_NO_WARN_SEARCH_MISMATCH,
  87   OPTION_NOINHIBIT_EXEC,
  88   OPTION_NON_SHARED,
  89   OPTION_NO_WHOLE_ARCHIVE,
  90   OPTION_OFORMAT,
  91   OPTION_RELAX,
  92   OPTION_RETAIN_SYMBOLS_FILE,
  93   OPTION_RPATH,
  94   OPTION_RPATH_LINK,
  95   OPTION_SHARED,
  96   OPTION_SONAME,
  97   OPTION_SORT_COMMON,
  98   OPTION_SORT_SECTION,
  99   OPTION_STATS,
 100   OPTION_SYMBOLIC,
 101   OPTION_SYMBOLIC_FUNCTIONS,
 102   OPTION_TASK_LINK,
 103   OPTION_TBSS,
 104   OPTION_TDATA,
 105   OPTION_TTEXT,
 106   OPTION_TRADITIONAL_FORMAT,
 107   OPTION_UR,
 108   OPTION_VERBOSE,
 109   OPTION_VERSION,
 110   OPTION_VERSION_SCRIPT,
 111   OPTION_VERSION_EXPORTS_SECTION,
 112   OPTION_DYNAMIC_LIST,
 113   OPTION_DYNAMIC_LIST_CPP_NEW,
 114   OPTION_DYNAMIC_LIST_CPP_TYPEINFO,
 115   OPTION_DYNAMIC_LIST_DATA,
 116   OPTION_WARN_COMMON,
 117   OPTION_WARN_CONSTRUCTORS,
 118   OPTION_WARN_FATAL,
 119   OPTION_WARN_MULTIPLE_GP,
 120   OPTION_WARN_ONCE,
 121   OPTION_WARN_SECTION_ALIGN,
 122   OPTION_SPLIT_BY_RELOC,
 123   OPTION_SPLIT_BY_FILE ,
 124   OPTION_WHOLE_ARCHIVE,
 125   OPTION_ADD_NEEDED,
 126   OPTION_NO_ADD_NEEDED,
 127   OPTION_AS_NEEDED,
 128   OPTION_NO_AS_NEEDED,
 129   OPTION_WRAP,
 130   OPTION_FORCE_EXE_SUFFIX,
 131   OPTION_GC_SECTIONS,
 132   OPTION_NO_GC_SECTIONS,
 133   OPTION_PRINT_GC_SECTIONS,
 134   OPTION_NO_PRINT_GC_SECTIONS,
 135   OPTION_HASH_SIZE,
 136   OPTION_CHECK_SECTIONS,
 137   OPTION_NO_CHECK_SECTIONS,
 138   OPTION_NO_UNDEFINED,
 139   OPTION_INIT,
 140   OPTION_FINI,
 141   OPTION_SECTION_START,
 142   OPTION_UNIQUE,
 143   OPTION_TARGET_HELP,
 144   OPTION_ALLOW_SHLIB_UNDEFINED,
 145   OPTION_NO_ALLOW_SHLIB_UNDEFINED,
 146   OPTION_ALLOW_MULTIPLE_DEFINITION,
 147   OPTION_NO_UNDEFINED_VERSION,
 148   OPTION_DEFAULT_SYMVER,
 149   OPTION_DEFAULT_IMPORTED_SYMVER,
 150   OPTION_DISCARD_NONE,
 151   OPTION_SPARE_DYNAMIC_TAGS,
 152   OPTION_NO_DEFINE_COMMON,
 153   OPTION_NOSTDLIB,
 154   OPTION_NO_OMAGIC,
 155   OPTION_STRIP_DISCARDED,
 156   OPTION_NO_STRIP_DISCARDED,
 157   OPTION_ACCEPT_UNKNOWN_INPUT_ARCH,
 158   OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH,
 159   OPTION_PIE,
 160   OPTION_UNRESOLVED_SYMBOLS,
 161   OPTION_WARN_UNRESOLVED_SYMBOLS,
 162   OPTION_ERROR_UNRESOLVED_SYMBOLS,
 163   OPTION_WARN_SHARED_TEXTREL,
 164   OPTION_REDUCE_MEMORY_OVERHEADS,
 165   OPTION_DEFAULT_SCRIPT
 166 };
 167
 168 /* The long options.  This structure is used for both the option
 169    parsing and the help text.  */
 170
 171 struct ld_option
 172 {
 173   /* The long option information.  */
 174   struct option opt;
 175   /* The short option with the same meaning ('\0' if none).  */
 176   char shortopt;
 177   /* The name of the argument (NULL if none).  */
 178   const char *arg;
 179   /* The documentation string.  If this is NULL, this is a synonym for
 180      the previous option.  */
 181   const char *doc;
 182   enum {
 183     /* Use one dash before long option name.  */
 184     ONE_DASH,
 185     /* Use two dashes before long option name.  */
 186     TWO_DASHES,
 187     /* Only accept two dashes before the long option name.
 188        This is an overloading of the use of this enum, since originally it
 189        was only intended to tell the --help display function how to display
 190        the long option name.  This feature was added in order to resolve
 191        the confusion about the -omagic command line switch.  Is it setting
 192        the output file name to "magic" or is it setting the NMAGIC flag on
 193        the output ?  It has been decided that it is setting the output file
 194        name, and that if you want to set the NMAGIC flag you should use -N
 195        or --omagic.  */
 196     EXACTLY_TWO_DASHES,
 197     /* Don't mention this option in --help output.  */
 198     NO_HELP
 199   } control;
 200 };
 201
 202 static const struct ld_option ld_options[] =
 203 {
 204   { {NULL, required_argument, NULL, '\0'},
 205     'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
 206     ONE_DASH },
 207   { {"architecture", required_argument, NULL, 'A'},
 208     'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
 209   { {"format", required_argument, NULL, 'b'},
 210     'b', N_("TARGET"), N_("Specify target for following input files"),
 211     TWO_DASHES },
 212   { {"mri-script", required_argument, NULL, 'c'},
 213     'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
 214   { {"dc", no_argument, NULL, 'd'},
 215     'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
 216   { {"dp", no_argument, NULL, 'd'},
 217     '\0', NULL, NULL, ONE_DASH },
 218   { {"entry", required_argument, NULL, 'e'},
 219     'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
 220   { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
 221     'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
 222   { {"EB", no_argument, NULL, OPTION_EB},
 223     '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
 224   { {"EL", no_argument, NULL, OPTION_EL},
 225     '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
 226   { {"auxiliary", required_argument, NULL, 'f'},
 227     'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
 228     TWO_DASHES },
 229   { {"filter", required_argument, NULL, 'F'},
 230     'F', N_("SHLIB"), N_("Filter for shared object symbol table"),
 231     TWO_DASHES },
 232   { {NULL, no_argument, NULL, '\0'},
 233     'g', NULL, N_("Ignored"), ONE_DASH },
 234   { {"gpsize", required_argument, NULL, 'G'},
 235     'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
 236     TWO_DASHES },
 237   { {"soname", required_argument, NULL, OPTION_SONAME},
 238     'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
 239   { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
 240     'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"),
 241     TWO_DASHES },
 242   { {"library", required_argument, NULL, 'l'},
 243     'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
 244   { {"library-path", required_argument, NULL, 'L'},
 245     'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"),
 246     TWO_DASHES },
 247   { {"sysroot=<DIRECTORY>", required_argument, NULL, OPTION_SYSROOT},
 248     '\0', NULL, N_("Override the default sysroot location"), TWO_DASHES },
 249   { {NULL, required_argument, NULL, '\0'},
 250     'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
 251   { {"print-map", no_argument, NULL, 'M'},
 252     'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
 253   { {"nmagic", no_argument, NULL, 'n'},
 254     'n', NULL, N_("Do not page align data"), TWO_DASHES },
 255   { {"omagic", no_argument, NULL, 'N'},
 256     'N', NULL, N_("Do not page align data, do not make text readonly"),
 257     EXACTLY_TWO_DASHES },
 258   { {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
 259     '\0', NULL, N_("Page align data, make text readonly"),
 260     EXACTLY_TWO_DASHES },
 261   { {"output", required_argument, NULL, 'o'},
 262     'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
 263   { {NULL, required_argument, NULL, '\0'},
 264     'O', NULL, N_("Optimize output file"), ONE_DASH },
 265   { {"Qy", no_argument, NULL, OPTION_IGNORE},
 266     '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
 267   { {"emit-relocs", no_argument, NULL, 'q'},
 268     'q', NULL, "Generate relocations in final output", TWO_DASHES },
 269   { {"relocatable", no_argument, NULL, 'r'},
 270     'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
 271   { {NULL, no_argument, NULL, '\0'},
 272     'i', NULL, NULL, ONE_DASH },
 273   { {"just-symbols", required_argument, NULL, 'R'},
 274     'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
 275     TWO_DASHES },
 276   { {"strip-all", no_argument, NULL, 's'},
 277     's', NULL, N_("Strip all symbols"), TWO_DASHES },
 278   { {"strip-debug", no_argument, NULL, 'S'},
 279     'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
 280   { {"strip-discarded", no_argument, NULL, OPTION_STRIP_DISCARDED},
 281     '\0', NULL, N_("Strip symbols in discarded sections"), TWO_DASHES },
 282   { {"no-strip-discarded", no_argument, NULL, OPTION_NO_STRIP_DISCARDED},
 283     '\0', NULL, N_("Do not strip symbols in discarded sections"), TWO_DASHES },
 284   { {"trace", no_argument, NULL, 't'},
 285     't', NULL, N_("Trace file opens"), TWO_DASHES },
 286   { {"script", required_argument, NULL, 'T'},
 287     'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
 288   { {"default-script", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
 289     '\0', N_("FILE"), N_("Read default linker script"), TWO_DASHES },
 290   { {"dT", required_argument, NULL, OPTION_DEFAULT_SCRIPT},
 291     '\0', NULL, NULL, ONE_DASH },
 292   { {"undefined", required_argument, NULL, 'u'},
 293     'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"),
 294     TWO_DASHES },
 295   { {"unique", optional_argument, NULL, OPTION_UNIQUE},
 296     '\0', N_("[=SECTION]"),
 297     N_("Don't merge input [SECTION | orphan] sections"), TWO_DASHES },
 298   { {"Ur", no_argument, NULL, OPTION_UR},
 299     '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
 300   { {"version", no_argument, NULL, OPTION_VERSION},
 301     'v', NULL, N_("Print version information"), TWO_DASHES },
 302   { {NULL, no_argument, NULL, '\0'},
 303     'V', NULL, N_("Print version and emulation information"), ONE_DASH },
 304   { {"discard-all", no_argument, NULL, 'x'},
 305     'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
 306   { {"discard-locals", no_argument, NULL, 'X'},
 307     'X', NULL, N_("Discard temporary local symbols (default)"), TWO_DASHES },
 308   { {"discard-none", no_argument, NULL, OPTION_DISCARD_NONE},
 309     '\0', NULL, N_("Don't discard any local symbols"), TWO_DASHES },
 310   { {"trace-symbol", required_argument, NULL, 'y'},
 311     'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
 312   { {NULL, required_argument, NULL, '\0'},
 313     'Y', N_("PATH"), N_("Default search path for Solaris compatibility"),
 314     ONE_DASH },
 315   { {"start-group", no_argument, NULL, '('},
 316     '(', NULL, N_("Start a group"), TWO_DASHES },
 317   { {"end-group", no_argument, NULL, ')'},
 318     ')', NULL, N_("End a group"), TWO_DASHES },
 319   { {"accept-unknown-input-arch", no_argument, NULL,
 320      OPTION_ACCEPT_UNKNOWN_INPUT_ARCH},
 321     '\0', NULL,
 322     N_("Accept input files whose architecture cannot be determined"),
 323     TWO_DASHES },
 324   { {"no-accept-unknown-input-arch", no_argument, NULL,
 325      OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH},
 326     '\0', NULL, N_("Reject input files whose architecture is unknown"),
 327     TWO_DASHES },
 328   { {"add-needed", no_argument, NULL, OPTION_ADD_NEEDED},
 329     '\0', NULL, N_("Set DT_NEEDED tags for DT_NEEDED entries in\n"
 330                    "                                following dynamic libs"),
 331     TWO_DASHES },
 332   { {"no-add-needed", no_argument, NULL, OPTION_NO_ADD_NEEDED},
 333     '\0', NULL, N_("Do not set DT_NEEDED tags for DT_NEEDED entries\n"
 334                    "                                in following dynamic libs"),
 335     TWO_DASHES },
 336   { {"as-needed", no_argument, NULL, OPTION_AS_NEEDED},
 337     '\0', NULL, N_("Only set DT_NEEDED for following dynamic libs if used"),
 338     TWO_DASHES },
 339   { {"no-as-needed", no_argument, NULL, OPTION_NO_AS_NEEDED},
 340     '\0', NULL, N_("Always set DT_NEEDED for following dynamic libs"),
 341     TWO_DASHES },
 342   { {"assert", required_argument, NULL, OPTION_ASSERT},
 343     '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
 344   { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
 345     '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
 346   { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
 347     '\0', NULL, NULL, ONE_DASH },
 348   { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
 349     '\0', NULL, NULL, ONE_DASH },
 350   { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
 351     '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
 352   { {"dn", no_argument, NULL, OPTION_NON_SHARED},
 353     '\0', NULL, NULL, ONE_DASH },
 354   { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
 355     '\0', NULL, NULL, ONE_DASH },
 356   { {"static", no_argument, NULL, OPTION_NON_SHARED},
 357     '\0', NULL, NULL, ONE_DASH },
 358   { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
 359     '\0', NULL, N_("Bind global references locally"), ONE_DASH },
 360   { {"Bsymbolic-functions", no_argument, NULL, OPTION_SYMBOLIC_FUNCTIONS},
 361     '\0', NULL, N_("Bind global function references locally"), ONE_DASH },
 362   { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
 363     '\0', NULL, N_("Check section addresses for overlaps (default)"),
 364     TWO_DASHES },
 365   { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
 366     '\0', NULL, N_("Do not check section addresses for overlaps"),
 367     TWO_DASHES },
 368   { {"cref", no_argument, NULL, OPTION_CREF},
 369     '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
 370   { {"defsym", required_argument, NULL, OPTION_DEFSYM},
 371     '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
 372   { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
 373     '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"),
 374     TWO_DASHES },
 375   { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
 376     '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
 377   { {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
 378     '\0', NULL, N_("Treat warnings as errors"),
 379     TWO_DASHES },
 380   { {"fini", required_argument, NULL, OPTION_FINI},
 381     '\0', N_("SYMBOL"), N_("Call SYMBOL at unload-time"), ONE_DASH },
 382   { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
 383     '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
 384   { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
 385     '\0', NULL, N_("Remove unused sections (on some targets)"),
 386     TWO_DASHES },
 387   { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
 388     '\0', NULL, N_("Don't remove unused sections (default)"),
 389     TWO_DASHES },
 390   { {"print-gc-sections", no_argument, NULL, OPTION_PRINT_GC_SECTIONS},
 391     '\0', NULL, N_("List removed unused sections on stderr"),
 392     TWO_DASHES },
 393   { {"no-print-gc-sections", no_argument, NULL, OPTION_NO_PRINT_GC_SECTIONS},
 394     '\0', NULL, N_("Do not list removed unused sections"),
 395     TWO_DASHES },
 396   { {"hash-size=<NUMBER>", required_argument, NULL, OPTION_HASH_SIZE},
 397     '\0', NULL, N_("Set default hash table size close to <NUMBER>"),
 398     TWO_DASHES },
 399   { {"help", no_argument, NULL, OPTION_HELP},
 400     '\0', NULL, N_("Print option help"), TWO_DASHES },
 401   { {"init", required_argument, NULL, OPTION_INIT},
 402     '\0', N_("SYMBOL"), N_("Call SYMBOL at load-time"), ONE_DASH },
 403   { {"Map", required_argument, NULL, OPTION_MAP},
 404     '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
 405   { {"no-define-common", no_argument, NULL, OPTION_NO_DEFINE_COMMON},
 406     '\0', NULL, N_("Do not define Common storage"), TWO_DASHES },
 407   { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
 408     '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
 409   { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
 410     '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
 411   { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
 412     '\0', NULL, N_("Do not allow unresolved references in object files"),
 413     TWO_DASHES },
 414   { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
 415     '\0', NULL, N_("Allow unresolved references in shared libaries"),
 416     TWO_DASHES },
 417   { {"no-allow-shlib-undefined", no_argument, NULL,
 418      OPTION_NO_ALLOW_SHLIB_UNDEFINED},
 419     '\0', NULL, N_("Do not allow unresolved references in shared libs"),
 420     TWO_DASHES },
 421   { {"allow-multiple-definition", no_argument, NULL,
 422      OPTION_ALLOW_MULTIPLE_DEFINITION},
 423     '\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
 424   { {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
 425     '\0', NULL, N_("Disallow undefined version"), TWO_DASHES },
 426   { {"default-symver", no_argument, NULL, OPTION_DEFAULT_SYMVER},
 427     '\0', NULL, N_("Create default symbol version"), TWO_DASHES },
 428   { {"default-imported-symver", no_argument, NULL,
 429       OPTION_DEFAULT_IMPORTED_SYMVER},
 430     '\0', NULL, N_("Create default symbol version for imported symbols"),
 431     TWO_DASHES },
 432   { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
 433     '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
 434   { {"no-warn-search-mismatch", no_argument, NULL,
 435      OPTION_NO_WARN_SEARCH_MISMATCH},
 436     '\0', NULL, N_("Don't warn on finding an incompatible library"),
 437     TWO_DASHES},
 438   { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
 439     '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
 440   { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 441     '\0', NULL, N_("Create an output file even if errors occur"),
 442     TWO_DASHES },
 443   { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 444     '\0', NULL, NULL, NO_HELP },
 445   { {"nostdlib", no_argument, NULL, OPTION_NOSTDLIB},
 446     '\0', NULL, N_("Only use library directories specified on\n"
 447                    "                                the command line"),
 448     ONE_DASH },
 449   { {"oformat", required_argument, NULL, OPTION_OFORMAT},
 450     '\0', N_("TARGET"), N_("Specify target of output file"),
 451     EXACTLY_TWO_DASHES },
 452   { {"qmagic", no_argument, NULL, OPTION_IGNORE},
 453     '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
 454   { {"reduce-memory-overheads", no_argument, NULL,
 455      OPTION_REDUCE_MEMORY_OVERHEADS},
 456     '\0', NULL, N_("Reduce memory overheads, possibly taking much longer"),
 457     TWO_DASHES },
 458   { {"relax", no_argument, NULL, OPTION_RELAX},
 459     '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES },
 460   { {"retain-symbols-file", required_argument, NULL,
 461      OPTION_RETAIN_SYMBOLS_FILE},
 462     '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
 463   { {"rpath", required_argument, NULL, OPTION_RPATH},
 464     '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
 465   { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
 466     '\0', N_("PATH"), N_("Set link time shared library search path"),
 467     ONE_DASH },
 468   { {"shared", no_argument, NULL, OPTION_SHARED},
 469     '\0', NULL, N_("Create a shared library"), ONE_DASH },
 470   { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD.  */
 471     '\0', NULL, NULL, ONE_DASH },
 472   { {"pie", no_argument, NULL, OPTION_PIE},
 473     '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
 474   { {"pic-executable", no_argument, NULL, OPTION_PIE},
 475     '\0', NULL, NULL, TWO_DASHES },
 476   { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
 477     '\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
 478   { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
 479     '\0', NULL, NULL, NO_HELP },
 480   { {"sort-section", required_argument, NULL, OPTION_SORT_SECTION},
 481     '\0', N_("name|alignment"),
 482     N_("Sort sections by name or maximum alignment"), TWO_DASHES },
 483   { {"spare-dynamic-tags", required_argument, NULL, OPTION_SPARE_DYNAMIC_TAGS},
 484     '\0', N_("COUNT"), N_("How many tags to reserve in .dynamic section"),
 485     TWO_DASHES },
 486   { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
 487     '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"),
 488     TWO_DASHES },
 489   { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
 490     '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"),
 491     TWO_DASHES },
 492   { {"stats", no_argument, NULL, OPTION_STATS},
 493     '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
 494   { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
 495     '\0', NULL, N_("Display target specific options"), TWO_DASHES },
 496   { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
 497     '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
 498   { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
 499     '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
 500   { {"section-start", required_argument, NULL, OPTION_SECTION_START},
 501     '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"),
 502     TWO_DASHES },
 503   { {"Tbss", required_argument, NULL, OPTION_TBSS},
 504     '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
 505   { {"Tdata", required_argument, NULL, OPTION_TDATA},
 506     '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
 507   { {"Ttext", required_argument, NULL, OPTION_TTEXT},
 508     '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
 509   { {"unresolved-symbols=<method>", required_argument, NULL,
 510      OPTION_UNRESOLVED_SYMBOLS},
 511     '\0', NULL, N_("How to handle unresolved symbols.  <method> is:\n"
 512                    "                                ignore-all, report-all, ignore-in-object-files,\n"
 513                    "                                ignore-in-shared-libs"),
 514     TWO_DASHES },
 515   { {"verbose", no_argument, NULL, OPTION_VERBOSE},
 516     '\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
 517   { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux.  */
 518     '\0', NULL, NULL, NO_HELP },
 519   { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
 520     '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
 521   { {"version-exports-section", required_argument, NULL,
 522      OPTION_VERSION_EXPORTS_SECTION },
 523     '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using\n"
 524                            "                                SYMBOL as the version."),
 525     TWO_DASHES },
 526   { {"dynamic-list-data", no_argument, NULL, OPTION_DYNAMIC_LIST_DATA},
 527     '\0', NULL, N_("Add data symbols to dynamic list"), TWO_DASHES },
 528   { {"dynamic-list-cpp-new", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_NEW},
 529     '\0', NULL, N_("Use C++ operator new/delete dynamic list"), TWO_DASHES },
 530   { {"dynamic-list-cpp-typeinfo", no_argument, NULL, OPTION_DYNAMIC_LIST_CPP_TYPEINFO},
 531     '\0', NULL, N_("Use C++ typeinfo dynamic list"), TWO_DASHES },
 532   { {"dynamic-list", required_argument, NULL, OPTION_DYNAMIC_LIST},
 533     '\0', N_("FILE"), N_("Read dynamic list"), TWO_DASHES },
 534   { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
 535     '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
 536   { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
 537     '\0', NULL, N_("Warn if global constructors/destructors are seen"),
 538     TWO_DASHES },
 539   { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
 540     '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
 541   { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
 542     '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
 543   { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
 544     '\0', NULL, N_("Warn if start of section changes due to alignment"),
 545     TWO_DASHES },
 546   { {"warn-shared-textrel", no_argument, NULL, OPTION_WARN_SHARED_TEXTREL},
 547     '\0', NULL, N_("Warn if shared object has DT_TEXTREL"),
 548     TWO_DASHES },
 549   { {"warn-unresolved-symbols", no_argument, NULL,
 550      OPTION_WARN_UNRESOLVED_SYMBOLS},
 551     '\0', NULL, N_("Report unresolved symbols as warnings"), TWO_DASHES },
 552   { {"error-unresolved-symbols", no_argument, NULL,
 553      OPTION_ERROR_UNRESOLVED_SYMBOLS},
 554     '\0', NULL, N_("Report unresolved symbols as errors"), TWO_DASHES },
 555   { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
 556     '\0', NULL, N_("Include all objects from following archives"),
 557     TWO_DASHES },
 558   { {"wrap", required_argument, NULL, OPTION_WRAP},
 559     '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
 560 };
 561
 562 #define OPTION_COUNT ARRAY_SIZE (ld_options)
 563
 564 void
 565 parse_args (unsigned argc, char **argv)
 566 {
 567   unsigned i;
 568   int is, il, irl;
 569   int ingroup = 0;
 570   char *default_dirlist = NULL;
 571   char *shortopts;
 572   struct option *longopts;
 573   struct option *really_longopts;
 574   int last_optind;
 575   enum report_method how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
 576
 577   shortopts = xmalloc (OPTION_COUNT * 3 + 2);
 578   longopts = xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
 579   really_longopts = xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
 580
 581   /* Starting the short option string with '-' is for programs that
 582      expect options and other ARGV-elements in any order and that care about
 583      the ordering of the two.  We describe each non-option ARGV-element
 584      as if it were the argument of an option with character code 1.  */
 585   shortopts[0] = '-';
 586   is = 1;
 587   il = 0;
 588   irl = 0;
 589   for (i = 0; i < OPTION_COUNT; i++)
 590     {
 591       if (ld_options[i].shortopt != '\0')
 592         {
 593           shortopts[is] = ld_options[i].shortopt;
 594           ++is;
 595           if (ld_options[i].opt.has_arg == required_argument
 596               || ld_options[i].opt.has_arg == optional_argument)
 597             {
 598               shortopts[is] = ':';
 599               ++is;
 600               if (ld_options[i].opt.has_arg == optional_argument)
 601                 {
 602                   shortopts[is] = ':';
 603                   ++is;
 604                 }
 605             }
 606         }
 607       if (ld_options[i].opt.name != NULL)
 608         {
 609           if (ld_options[i].control == EXACTLY_TWO_DASHES)
 610             {
 611               really_longopts[irl] = ld_options[i].opt;
 612               ++irl;
 613             }
 614           else
 615             {
 616               longopts[il] = ld_options[i].opt;
 617               ++il;
 618             }
 619         }
 620     }
 621   shortopts[is] = '\0';
 622   longopts[il].name = NULL;
 623   really_longopts[irl].name = NULL;
 624
 625   ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
 626
 627   /* The -G option is ambiguous on different platforms.  Sometimes it
 628      specifies the largest data size to put into the small data
 629      section.  Sometimes it is equivalent to --shared.  Unfortunately,
 630      the first form takes an argument, while the second does not.
 631
 632      We need to permit the --shared form because on some platforms,
 633      such as Solaris, gcc -shared will pass -G to the linker.
 634
 635      To permit either usage, we look through the argument list.  If we
 636      find -G not followed by a number, we change it into --shared.
 637      This will work for most normal cases.  */
 638   for (i = 1; i < argc; i++)
 639     if (strcmp (argv[i], "-G") == 0
 640         && (i + 1 >= argc
 641             || ! ISDIGIT (argv[i + 1][0])))
 642       argv[i] = (char *) "--shared";
 643
 644   /* Because we permit long options to start with a single dash, and
 645      we have a --library option, and the -l option is conventionally
 646      used with an immediately following argument, we can have bad
 647      results if somebody tries to use -l with a library whose name
 648      happens to start with "ibrary", as in -li.  We avoid problems by
 649      simply turning -l into --library.  This means that users will
 650      have to use two dashes in order to use --library, which is OK
 651      since that's how it is documented.
 652
 653      FIXME: It's possible that this problem can arise for other short
 654      options as well, although the user does always have the recourse
 655      of adding a space between the option and the argument.  */
 656   for (i = 1; i < argc; i++)
 657     {
 658       if (argv[i][0] == '-'
 659           && argv[i][1] == 'l'
 660           && argv[i][2] != '\0')
 661         {
 662           char *n;
 663
 664           n = xmalloc (strlen (argv[i]) + 20);
 665           sprintf (n, "--library=%s", argv[i] + 2);
 666           argv[i] = n;
 667         }
 668     }
 669
 670   last_optind = -1;
 671   while (1)
 672     {
 673       int longind;
 674       int optc;
 675
 676       /* Using last_optind lets us avoid calling ldemul_parse_args
 677          multiple times on a single option, which would lead to
 678          confusion in the internal static variables maintained by
 679          getopt.  This could otherwise happen for an argument like
 680          -nx, in which the -n is parsed as a single option, and we
 681          loop around to pick up the -x.  */
 682       if (optind != last_optind)
 683         if (ldemul_parse_args (argc, argv))
 684           continue;
 685
 686       /* getopt_long_only is like getopt_long, but '-' as well as '--'
 687          can indicate a long option.  */
 688       opterr = 0;
 689       last_optind = optind;
 690       optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
 691       if (optc == '?')
 692         {
 693           optind = last_optind;
 694           optc = getopt_long (argc, argv, "-", really_longopts, &longind);
 695         }
 696
 697       if (ldemul_handle_option (optc))
 698         continue;
 699
 700       if (optc == -1)
 701         break;
 702
 703       switch (optc)
 704         {
 705         case '?':
 706           einfo (_("%P: unrecognized option '%s'\n"), argv[last_optind]);
 707           /* Fall through.  */
 708
 709         default:
 710           einfo (_("%P%F: use the --help option for usage information\n"));
 711
 712         case 1:                 /* File name.  */
 713           lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
 714           break;
 715
 716         case OPTION_IGNORE:
 717           break;
 718         case 'a':
 719           /* For HP/UX compatibility.  Actually -a shared should mean
 720              ``use only shared libraries'' but, then, we don't
 721              currently support shared libraries on HP/UX anyhow.  */
 722           if (strcmp (optarg, "archive") == 0)
 723             config.dynamic_link = FALSE;
 724           else if (strcmp (optarg, "shared") == 0
 725                    || strcmp (optarg, "default") == 0)
 726             config.dynamic_link = TRUE;
 727           else
 728             einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
 729           break;
 730         case OPTION_ASSERT:
 731           /* FIXME: We just ignore these, but we should handle them.  */
 732           if (strcmp (optarg, "definitions") == 0)
 733             ;
 734           else if (strcmp (optarg, "nodefinitions") == 0)
 735             ;
 736           else if (strcmp (optarg, "nosymbolic") == 0)
 737             ;
 738           else if (strcmp (optarg, "pure-text") == 0)
 739             ;
 740           else
 741             einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
 742           break;
 743         case 'A':
 744           ldfile_add_arch (optarg);
 745           break;
 746         case 'b':
 747           lang_add_target (optarg);
 748           break;
 749         case 'c':
 750           ldfile_open_command_file (optarg);
 751           parser_input = input_mri_script;
 752           yyparse ();
 753           break;
 754         case OPTION_CALL_SHARED:
 755           config.dynamic_link = TRUE;
 756           break;
 757         case OPTION_NON_SHARED:
 758           config.dynamic_link = FALSE;
 759           break;
 760         case OPTION_CREF:
 761           command_line.cref = TRUE;
 762           link_info.notice_all = TRUE;
 763           break;
 764         case 'd':
 765           command_line.force_common_definition = TRUE;
 766           break;
 767         case OPTION_DEFSYM:
 768           lex_string = optarg;
 769           lex_redirect (optarg);
 770           parser_input = input_defsym;
 771           parsing_defsym = 1;
 772           yyparse ();
 773           parsing_defsym = 0;
 774           lex_string = NULL;
 775           break;
 776         case OPTION_DEMANGLE:
 777           demangling = TRUE;
 778           if (optarg != NULL)
 779             {
 780               enum demangling_styles style;
 781
 782               style = cplus_demangle_name_to_style (optarg);
 783               if (style == unknown_demangling)
 784                 einfo (_("%F%P: unknown demangling style `%s'"),
 785                        optarg);
 786
 787               cplus_demangle_set_style (style);
 788             }
 789           break;
 790         case 'I':               /* Used on Solaris.  */
 791         case OPTION_DYNAMIC_LINKER:
 792           command_line.interpreter = optarg;
 793           break;
 794         case OPTION_SYSROOT:
 795           /* Already handled in ldmain.c.  */
 796           break;
 797         case OPTION_EB:
 798           command_line.endian = ENDIAN_BIG;
 799           break;
 800         case OPTION_EL:
 801           command_line.endian = ENDIAN_LITTLE;
 802           break;
 803         case OPTION_EMBEDDED_RELOCS:
 804           command_line.embedded_relocs = TRUE;
 805           break;
 806         case OPTION_EXPORT_DYNAMIC:
 807         case 'E': /* HP/UX compatibility.  */
 808           link_info.export_dynamic = TRUE;
 809           break;
 810         case 'e':
 811           lang_add_entry (optarg, TRUE);
 812           break;
 813         case 'f':
 814           if (command_line.auxiliary_filters == NULL)
 815             {
 816               command_line.auxiliary_filters = xmalloc (2 * sizeof (char *));
 817               command_line.auxiliary_filters[0] = optarg;
 818               command_line.auxiliary_filters[1] = NULL;
 819             }
 820           else
 821             {
 822               int c;
 823               char **p;
 824
 825               c = 0;
 826               for (p = command_line.auxiliary_filters; *p != NULL; p++)
 827                 ++c;
 828               command_line.auxiliary_filters
 829                 = xrealloc (command_line.auxiliary_filters,
 830                             (c + 2) * sizeof (char *));
 831               command_line.auxiliary_filters[c] = optarg;
 832               command_line.auxiliary_filters[c + 1] = NULL;
 833             }
 834           break;
 835         case 'F':
 836           command_line.filter_shlib = optarg;
 837           break;
 838         case OPTION_FORCE_EXE_SUFFIX:
 839           command_line.force_exe_suffix = TRUE;
 840           break;
 841         case 'G':
 842           {
 843             char *end;
 844             g_switch_value = strtoul (optarg, &end, 0);
 845             if (*end)
 846               einfo (_("%P%F: invalid number `%s'\n"), optarg);
 847           }
 848           break;
 849         case 'g':
 850           /* Ignore.  */
 851           break;
 852         case OPTION_GC_SECTIONS:
 853           link_info.gc_sections = TRUE;
 854           break;
 855         case OPTION_PRINT_GC_SECTIONS:
 856           link_info.print_gc_sections = TRUE;
 857           break;
 858         case OPTION_HELP:
 859           help ();
 860           xexit (0);
 861           break;
 862         case 'L':
 863           ldfile_add_library_path (optarg, TRUE);
 864           break;
 865         case 'l':
 866           lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
 867           break;
 868         case 'M':
 869           config.map_filename = "-";
 870           break;
 871         case 'm':
 872           /* Ignore.  Was handled in a pre-parse.   */
 873           break;
 874         case OPTION_MAP:
 875           config.map_filename = optarg;
 876           break;
 877         case 'N':
 878           config.text_read_only = FALSE;
 879           config.magic_demand_paged = FALSE;
 880           config.dynamic_link = FALSE;
 881           break;
 882         case OPTION_NO_OMAGIC:
 883           config.text_read_only = TRUE;
 884           config.magic_demand_paged = TRUE;
 885           /* NB/ Does not set dynamic_link to TRUE.
 886              Use --call-shared or -Bdynamic for this.  */
 887           break;
 888         case 'n':
 889           config.magic_demand_paged = FALSE;
 890           config.dynamic_link = FALSE;
 891           break;
 892         case OPTION_NO_DEFINE_COMMON:
 893           command_line.inhibit_common_definition = TRUE;
 894           break;
 895         case OPTION_NO_DEMANGLE:
 896           demangling = FALSE;
 897           break;
 898         case OPTION_NO_GC_SECTIONS:
 899           link_info.gc_sections = FALSE;
 900           break;
 901         case OPTION_NO_PRINT_GC_SECTIONS:
 902           link_info.print_gc_sections = FALSE;
 903           break;
 904         case OPTION_NO_KEEP_MEMORY:
 905           link_info.keep_memory = FALSE;
 906           break;
 907         case OPTION_NO_UNDEFINED:
 908           link_info.unresolved_syms_in_objects
 909             = how_to_report_unresolved_symbols;
 910           break;
 911         case OPTION_ALLOW_SHLIB_UNDEFINED:
 912           link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 913           break;
 914         case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
 915           link_info.unresolved_syms_in_shared_libs
 916             = how_to_report_unresolved_symbols;
 917           break;
 918         case OPTION_UNRESOLVED_SYMBOLS:
 919           if (strcmp (optarg, "ignore-all") == 0)
 920             {
 921               link_info.unresolved_syms_in_objects = RM_IGNORE;
 922               link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 923             }
 924           else if (strcmp (optarg, "report-all") == 0)
 925             {
 926               link_info.unresolved_syms_in_objects
 927                 = how_to_report_unresolved_symbols;
 928               link_info.unresolved_syms_in_shared_libs
 929                 = how_to_report_unresolved_symbols;
 930             }
 931           else if (strcmp (optarg, "ignore-in-object-files") == 0)
 932             {
 933               link_info.unresolved_syms_in_objects = RM_IGNORE;
 934               link_info.unresolved_syms_in_shared_libs
 935                 = how_to_report_unresolved_symbols;
 936             }
 937           else if (strcmp (optarg, "ignore-in-shared-libs") == 0)
 938             {
 939               link_info.unresolved_syms_in_objects
 940                 = how_to_report_unresolved_symbols;
 941               link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 942             }
 943           else
 944             einfo (_("%P%F: bad --unresolved-symbols option: %s\n"), optarg);
 945           break;
 946         case OPTION_WARN_UNRESOLVED_SYMBOLS:
 947           how_to_report_unresolved_symbols = RM_GENERATE_WARNING;
 948           if (link_info.unresolved_syms_in_objects == RM_GENERATE_ERROR)
 949             link_info.unresolved_syms_in_objects = RM_GENERATE_WARNING;
 950           if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_ERROR)
 951             link_info.unresolved_syms_in_shared_libs = RM_GENERATE_WARNING;
 952           break;
 953
 954         case OPTION_ERROR_UNRESOLVED_SYMBOLS:
 955           how_to_report_unresolved_symbols = RM_GENERATE_ERROR;
 956           if (link_info.unresolved_syms_in_objects == RM_GENERATE_WARNING)
 957             link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
 958           if (link_info.unresolved_syms_in_shared_libs == RM_GENERATE_WARNING)
 959             link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
 960           break;
 961         case OPTION_ALLOW_MULTIPLE_DEFINITION:
 962           link_info.allow_multiple_definition = TRUE;
 963           break;
 964         case OPTION_NO_UNDEFINED_VERSION:
 965           link_info.allow_undefined_version = FALSE;
 966           break;
 967         case OPTION_DEFAULT_SYMVER:
 968           link_info.create_default_symver = TRUE;
 969           break;
 970         case OPTION_DEFAULT_IMPORTED_SYMVER:
 971           link_info.default_imported_symver = TRUE;
 972           break;
 973         case OPTION_NO_WARN_MISMATCH:
 974           command_line.warn_mismatch = FALSE;
 975           break;
 976         case OPTION_NO_WARN_SEARCH_MISMATCH:
 977           command_line.warn_search_mismatch = FALSE;
 978           break;
 979         case OPTION_NOINHIBIT_EXEC:
 980           force_make_executable = TRUE;
 981           break;
 982         case OPTION_NOSTDLIB:
 983           config.only_cmd_line_lib_dirs = TRUE;
 984           break;
 985         case OPTION_NO_WHOLE_ARCHIVE:
 986           whole_archive = FALSE;
 987           break;
 988         case 'O':
 989           /* FIXME "-O<non-digits> <value>" used to set the address of
 990              section <non-digits>.  Was this for compatibility with
 991              something, or can we create a new option to do that
 992              (with a syntax similar to -defsym)?
 993              getopt can't handle two args to an option without kludges.  */
 994
 995           /* Enable optimizations of output files.  */
 996           link_info.optimize = strtoul (optarg, NULL, 0) ? TRUE : FALSE;
 997           break;
 998         case 'o':
 999           lang_add_output (optarg, 0);
1000           break;
1001         case OPTION_OFORMAT:
1002           lang_add_output_format (optarg, NULL, NULL, 0);
1003           break;
1004         case 'q':
1005           link_info.emitrelocations = TRUE;
1006           break;
1007         case 'i':
1008         case 'r':
1009           if (optind == last_optind)
1010             /* This can happen if the user put "-rpath,a" on the command
1011                line.  (Or something similar.  The comma is important).
1012                Getopt becomes confused and thinks that this is a -r option
1013                but it cannot parse the text after the -r so it refuses to
1014                increment the optind counter.  Detect this case and issue
1015                an error message here.  We cannot just make this a warning,
1016                increment optind, and continue because getopt is too confused
1017                and will seg-fault the next time around.  */
1018             einfo(_("%P%F: bad -rpath option\n"));
1019
1020           link_info.relocatable = TRUE;
1021           config.build_constructors = FALSE;
1022           config.magic_demand_paged = FALSE;
1023           config.text_read_only = FALSE;
1024           config.dynamic_link = FALSE;
1025           break;
1026         case 'R':
1027           /* The GNU linker traditionally uses -R to mean to include
1028              only the symbols from a file.  The Solaris linker uses -R
1029              to set the path used by the runtime linker to find
1030              libraries.  This is the GNU linker -rpath argument.  We
1031              try to support both simultaneously by checking the file
1032              named.  If it is a directory, rather than a regular file,
1033              we assume -rpath was meant.  */
1034           {
1035             struct stat s;
1036
1037             if (stat (optarg, &s) >= 0
1038                 && ! S_ISDIR (s.st_mode))
1039               {
1040                 lang_add_input_file (optarg,
1041                                      lang_input_file_is_symbols_only_enum,
1042                                      NULL);
1043                 break;
1044               }
1045           }
1046           /* Fall through.  */
1047         case OPTION_RPATH:
1048           if (command_line.rpath == NULL)
1049             command_line.rpath = xstrdup (optarg);
1050           else
1051             {
1052               size_t rpath_len = strlen (command_line.rpath);
1053               size_t optarg_len = strlen (optarg);
1054               char *buf;
1055               char *cp = command_line.rpath;
1056
1057               /* First see whether OPTARG is already in the path.  */
1058               do
1059                 {
1060                   if (strncmp (optarg, cp, optarg_len) == 0
1061                       && (cp[optarg_len] == 0
1062                           || cp[optarg_len] == config.rpath_separator))
1063                     /* We found it.  */
1064                     break;
1065
1066                   /* Not yet found.  */
1067                   cp = strchr (cp, config.rpath_separator);
1068                   if (cp != NULL)
1069                     ++cp;
1070                 }
1071               while (cp != NULL);
1072
1073               if (cp == NULL)
1074                 {
1075                   buf = xmalloc (rpath_len + optarg_len + 2);
1076                   sprintf (buf, "%s%c%s", command_line.rpath,
1077                            config.rpath_separator, optarg);
1078                   free (command_line.rpath);
1079                   command_line.rpath = buf;
1080                 }
1081             }
1082           break;
1083         case OPTION_RPATH_LINK:
1084           if (command_line.rpath_link == NULL)
1085             command_line.rpath_link = xstrdup (optarg);
1086           else
1087             {
1088               char *buf;
1089
1090               buf = xmalloc (strlen (command_line.rpath_link)
1091                              + strlen (optarg)
1092                              + 2);
1093               sprintf (buf, "%s%c%s", command_line.rpath_link,
1094                        config.rpath_separator, optarg);
1095               free (command_line.rpath_link);
1096               command_line.rpath_link = buf;
1097             }
1098           break;
1099         case OPTION_RELAX:
1100           command_line.relax = TRUE;
1101           break;
1102         case OPTION_RETAIN_SYMBOLS_FILE:
1103           add_keepsyms_file (optarg);
1104           break;
1105         case 'S':
1106           link_info.strip = strip_debugger;
1107           break;
1108         case 's':
1109           link_info.strip = strip_all;
1110           break;
1111         case OPTION_STRIP_DISCARDED:
1112           link_info.strip_discarded = TRUE;
1113           break;
1114         case OPTION_NO_STRIP_DISCARDED:
1115           link_info.strip_discarded = FALSE;
1116           break;
1117         case OPTION_SHARED:
1118           if (config.has_shared)
1119             {
1120               link_info.shared = TRUE;
1121               /* When creating a shared library, the default
1122                  behaviour is to ignore any unresolved references.  */
1123               if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1124                 link_info.unresolved_syms_in_objects = RM_IGNORE;
1125               if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1126                 link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
1127             }
1128           else
1129             einfo (_("%P%F: -shared not supported\n"));
1130           break;
1131         case OPTION_PIE:
1132           if (config.has_shared)
1133             {
1134               link_info.shared = TRUE;
1135               link_info.pie = TRUE;
1136             }
1137           else
1138             einfo (_("%P%F: -pie not supported\n"));
1139           break;
1140         case 'h':               /* Used on Solaris.  */
1141         case OPTION_SONAME:
1142           command_line.soname = optarg;
1143           break;
1144         case OPTION_SORT_COMMON:
1145           config.sort_common = TRUE;
1146           break;
1147         case OPTION_SORT_SECTION:
1148           if (strcmp (optarg, N_("name")) == 0)
1149             sort_section = by_name;
1150           else if (strcmp (optarg, N_("alignment")) == 0)
1151             sort_section = by_alignment;
1152           else
1153             einfo (_("%P%F: invalid section sorting option: %s\n"),
1154                    optarg);
1155           break;
1156         case OPTION_STATS:
1157           config.stats = TRUE;
1158           break;
1159         case OPTION_SYMBOLIC:
1160           command_line.symbolic = symbolic;
1161           break;
1162         case OPTION_SYMBOLIC_FUNCTIONS:
1163           command_line.symbolic = symbolic_functions;
1164           break;
1165         case 't':
1166           trace_files = TRUE;
1167           break;
1168         case 'T':
1169           ldfile_open_command_file (optarg);
1170           parser_input = input_script;
1171           yyparse ();
1172           break;
1173         case OPTION_DEFAULT_SCRIPT:
1174           command_line.default_script = optarg;
1175           break;
1176         case OPTION_SECTION_START:
1177           {
1178             char *optarg2;
1179             char *sec_name;
1180             int len;
1181
1182             /* Check for <something>=<somthing>...  */
1183             optarg2 = strchr (optarg, '=');
1184             if (optarg2 == NULL)
1185               einfo (_("%P%F: invalid argument to option"
1186                        " \"--section-start\"\n"));
1187
1188             optarg2++;
1189
1190             /* So far so good.  Are all the args present?  */
1191             if ((*optarg == '\0') || (*optarg2 == '\0'))
1192               einfo (_("%P%F: missing argument(s) to option"
1193                        " \"--section-start\"\n"));
1194
1195             /* We must copy the section name as set_section_start
1196                doesn't do it for us.  */
1197             len = optarg2 - optarg;
1198             sec_name = xmalloc (len);
1199             memcpy (sec_name, optarg, len - 1);
1200             sec_name[len - 1] = 0;
1201
1202             /* Then set it...  */
1203             set_section_start (sec_name, optarg2);
1204           }
1205           break;
1206         case OPTION_TARGET_HELP:
1207           /* Mention any target specific options.  */
1208           ldemul_list_emulation_options (stdout);
1209           exit (0);
1210         case OPTION_TBSS:
1211           set_segment_start (".bss", optarg);
1212           break;
1213         case OPTION_TDATA:
1214           set_segment_start (".data", optarg);
1215           break;
1216         case OPTION_TTEXT:
1217           set_segment_start (".text", optarg);
1218           break;
1219         case OPTION_TRADITIONAL_FORMAT:
1220           link_info.traditional_format = TRUE;
1221           break;
1222         case OPTION_TASK_LINK:
1223           link_info.task_link = TRUE;
1224           /* Fall through - do an implied -r option.  */
1225         case OPTION_UR:
1226           link_info.relocatable = TRUE;
1227           config.build_constructors = TRUE;
1228           config.magic_demand_paged = FALSE;
1229           config.text_read_only = FALSE;
1230           config.dynamic_link = FALSE;
1231           break;
1232         case 'u':
1233           ldlang_add_undef (optarg);
1234           break;
1235         case OPTION_UNIQUE:
1236           if (optarg != NULL)
1237             lang_add_unique (optarg);
1238           else
1239             config.unique_orphan_sections = TRUE;
1240           break;
1241         case OPTION_VERBOSE:
1242           ldversion (1);
1243           version_printed = TRUE;
1244           trace_file_tries = TRUE;
1245           overflow_cutoff_limit = -2;
1246           break;
1247         case 'v':
1248           ldversion (0);
1249           version_printed = TRUE;
1250           break;
1251         case 'V':
1252           ldversion (1);
1253           version_printed = TRUE;
1254           break;
1255         case OPTION_VERSION:
1256           ldversion (2);
1257           xexit (0);
1258           break;
1259         case OPTION_VERSION_SCRIPT:
1260           /* This option indicates a small script that only specifies
1261              version information.  Read it, but don't assume that
1262              we've seen a linker script.  */
1263           {
1264             FILE *hold_script_handle;
1265
1266             hold_script_handle = saved_script_handle;
1267             ldfile_open_command_file (optarg);
1268             saved_script_handle = hold_script_handle;
1269             parser_input = input_version_script;
1270             yyparse ();
1271           }
1272           break;
1273         case OPTION_VERSION_EXPORTS_SECTION:
1274           /* This option records a version symbol to be applied to the
1275              symbols listed for export to be found in the object files
1276              .exports sections.  */
1277           command_line.version_exports_section = optarg;
1278           break;
1279         case OPTION_DYNAMIC_LIST_DATA:
1280           command_line.dynamic_list = dynamic_list_data;
1281           if (command_line.symbolic == symbolic)
1282             command_line.symbolic = symbolic_unset;
1283           break;
1284         case OPTION_DYNAMIC_LIST_CPP_TYPEINFO:
1285           lang_append_dynamic_list_cpp_typeinfo ();
1286           if (command_line.dynamic_list != dynamic_list_data)
1287             command_line.dynamic_list = dynamic_list;
1288           if (command_line.symbolic == symbolic)
1289             command_line.symbolic = symbolic_unset;
1290           break;
1291         case OPTION_DYNAMIC_LIST_CPP_NEW:
1292           lang_append_dynamic_list_cpp_new ();
1293           if (command_line.dynamic_list != dynamic_list_data)
1294             command_line.dynamic_list = dynamic_list;
1295           if (command_line.symbolic == symbolic)
1296             command_line.symbolic = symbolic_unset;
1297           break;
1298         case OPTION_DYNAMIC_LIST:
1299           /* This option indicates a small script that only specifies
1300              a dynamic list.  Read it, but don't assume that we've
1301              seen a linker script.  */
1302           {
1303             FILE *hold_script_handle;
1304
1305             hold_script_handle = saved_script_handle;
1306             ldfile_open_command_file (optarg);
1307             saved_script_handle = hold_script_handle;
1308             parser_input = input_dynamic_list;
1309             yyparse ();
1310           }
1311           if (command_line.dynamic_list != dynamic_list_data)
1312             command_line.dynamic_list = dynamic_list;
1313           if (command_line.symbolic == symbolic)
1314             command_line.symbolic = symbolic_unset;
1315           break;
1316         case OPTION_WARN_COMMON:
1317           config.warn_common = TRUE;
1318           break;
1319         case OPTION_WARN_CONSTRUCTORS:
1320           config.warn_constructors = TRUE;
1321           break;
1322         case OPTION_WARN_FATAL:
1323           config.fatal_warnings = TRUE;
1324           break;
1325         case OPTION_WARN_MULTIPLE_GP:
1326           config.warn_multiple_gp = TRUE;
1327           break;
1328         case OPTION_WARN_ONCE:
1329           config.warn_once = TRUE;
1330           break;
1331         case OPTION_WARN_SECTION_ALIGN:
1332           config.warn_section_align = TRUE;
1333           break;
1334         case OPTION_WARN_SHARED_TEXTREL:
1335           link_info.warn_shared_textrel = TRUE;
1336           break;
1337         case OPTION_WHOLE_ARCHIVE:
1338           whole_archive = TRUE;
1339           break;
1340         case OPTION_ADD_NEEDED:
1341           add_needed = TRUE;
1342           break;
1343         case OPTION_NO_ADD_NEEDED:
1344           add_needed = FALSE;
1345           break;
1346         case OPTION_AS_NEEDED:
1347           as_needed = TRUE;
1348           break;
1349         case OPTION_NO_AS_NEEDED:
1350           as_needed = FALSE;
1351           break;
1352         case OPTION_WRAP:
1353           add_wrap (optarg);
1354           break;
1355         case OPTION_DISCARD_NONE:
1356           link_info.discard = discard_none;
1357           break;
1358         case 'X':
1359           link_info.discard = discard_l;
1360           break;
1361         case 'x':
1362           link_info.discard = discard_all;
1363           break;
1364         case 'Y':
1365           if (CONST_STRNEQ (optarg, "P,"))
1366             optarg += 2;
1367           if (default_dirlist != NULL)
1368             free (default_dirlist);
1369           default_dirlist = xstrdup (optarg);
1370           break;
1371         case 'y':
1372           add_ysym (optarg);
1373           break;
1374         case OPTION_SPARE_DYNAMIC_TAGS:
1375           link_info.spare_dynamic_tags = strtoul (optarg, NULL, 0);
1376           break;
1377         case OPTION_SPLIT_BY_RELOC:
1378           if (optarg != NULL)
1379             config.split_by_reloc = strtoul (optarg, NULL, 0);
1380           else
1381             config.split_by_reloc = 32768;
1382           break;
1383         case OPTION_SPLIT_BY_FILE:
1384           if (optarg != NULL)
1385             config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
1386           else
1387             config.split_by_file = 1;
1388           break;
1389         case OPTION_CHECK_SECTIONS:
1390           command_line.check_section_addresses = TRUE;
1391           break;
1392         case OPTION_NO_CHECK_SECTIONS:
1393           command_line.check_section_addresses = FALSE;
1394           break;
1395         case OPTION_ACCEPT_UNKNOWN_INPUT_ARCH:
1396           command_line.accept_unknown_input_arch = TRUE;
1397           break;
1398         case OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH:
1399           command_line.accept_unknown_input_arch = FALSE;
1400           break;
1401         case '(':
1402           if (ingroup)
1403             einfo (_("%P%F: may not nest groups (--help for usage)\n"));
1404
1405           lang_enter_group ();
1406           ingroup = 1;
1407           break;
1408         case ')':
1409           if (! ingroup)
1410             einfo (_("%P%F: group ended before it began (--help for usage)\n"));
1411
1412           lang_leave_group ();
1413           ingroup = 0;
1414           break;
1415
1416         case OPTION_INIT:
1417           link_info.init_function = optarg;
1418           break;
1419
1420         case OPTION_FINI:
1421           link_info.fini_function = optarg;
1422           break;
1423
1424         case OPTION_REDUCE_MEMORY_OVERHEADS:
1425           link_info.reduce_memory_overheads = TRUE;
1426           if (config.hash_table_size == 0)
1427             config.hash_table_size = 1021;
1428           break;
1429
1430         case OPTION_HASH_SIZE:
1431           {
1432             bfd_size_type new_size;
1433
1434             new_size = strtoul (optarg, NULL, 0);
1435             if (new_size)
1436               config.hash_table_size = new_size;
1437             else
1438               einfo (_("%P%X: --hash-size needs a numeric argument\n"));
1439           }
1440           break;
1441         }
1442     }
1443
1444   if (ingroup)
1445     lang_leave_group ();
1446
1447   if (default_dirlist != NULL)
1448     {
1449       set_default_dirlist (default_dirlist);
1450       free (default_dirlist);
1451     }
1452
1453   if (link_info.unresolved_syms_in_objects == RM_NOT_YET_SET)
1454     /* FIXME: Should we allow emulations a chance to set this ?  */
1455     link_info.unresolved_syms_in_objects = how_to_report_unresolved_symbols;
1456
1457   if (link_info.unresolved_syms_in_shared_libs == RM_NOT_YET_SET)
1458     /* FIXME: Should we allow emulations a chance to set this ?  */
1459     link_info.unresolved_syms_in_shared_libs = how_to_report_unresolved_symbols;
1460 }
1461
1462 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1463    library search path.  */
1464
1465 static void
1466 set_default_dirlist (char *dirlist_ptr)
1467 {
1468   char *p;
1469
1470   while (1)
1471     {
1472       p = strchr (dirlist_ptr, PATH_SEPARATOR);
1473       if (p != NULL)
1474         *p = '\0';
1475       if (*dirlist_ptr != '\0')
1476         ldfile_add_library_path (dirlist_ptr, TRUE);
1477       if (p == NULL)
1478         break;
1479       dirlist_ptr = p + 1;
1480     }
1481 }
1482
1483 static void
1484 set_section_start (char *sect, char *valstr)
1485 {
1486   const char *end;
1487   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1488   if (*end)
1489     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1490   lang_section_start (sect, exp_intop (val), NULL);
1491 }
1492
1493 static void
1494 set_segment_start (const char *section, char *valstr)
1495 {
1496   const char *name;
1497   const char *end;
1498   segment_type *seg;
1499
1500   bfd_vma val = bfd_scan_vma (valstr, &end, 16);
1501   if (*end)
1502     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1503   /* If we already have an entry for this segment, update the existing
1504      value.  */
1505   name = section + 1;
1506   for (seg = segments; seg; seg = seg->next)
1507     if (strcmp (seg->name, name) == 0)
1508       {
1509         seg->value = val;
1510         return;
1511       }
1512   /* There was no existing value so we must create a new segment
1513      entry.  */
1514   seg = stat_alloc (sizeof (*seg));
1515   seg->name = name;
1516   seg->value = val;
1517   seg->used = FALSE;
1518   /* Add it to the linked list of segments.  */
1519   seg->next = segments;
1520   segments = seg;
1521   /* Historically, -Ttext and friends set the base address of a
1522      particular section.  For backwards compatibility, we still do
1523      that.  If a SEGMENT_START directive is seen, the section address
1524      assignment will be disabled.  */
1525   lang_section_start (section, exp_intop (val), seg);
1526 }
1527
1528 \f
1529 /* Print help messages for the options.  */
1530
1531 static void
1532 help (void)
1533 {
1534   unsigned i;
1535   const char **targets, **pp;
1536   int len;
1537
1538   printf (_("Usage: %s [options] file...\n"), program_name);
1539
1540   printf (_("Options:\n"));
1541   for (i = 0; i < OPTION_COUNT; i++)
1542     {
1543       if (ld_options[i].doc != NULL)
1544         {
1545           bfd_boolean comma;
1546           unsigned j;
1547
1548           printf ("  ");
1549
1550           comma = FALSE;
1551           len = 2;
1552
1553           j = i;
1554           do
1555             {
1556               if (ld_options[j].shortopt != '\0'
1557                   && ld_options[j].control != NO_HELP)
1558                 {
1559                   printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1560                   len += (comma ? 2 : 0) + 2;
1561                   if (ld_options[j].arg != NULL)
1562                     {
1563                       if (ld_options[j].opt.has_arg != optional_argument)
1564                         {
1565                           printf (" ");
1566                           ++len;
1567                         }
1568                       printf ("%s", _(ld_options[j].arg));
1569                       len += strlen (_(ld_options[j].arg));
1570                     }
1571                   comma = TRUE;
1572                 }
1573               ++j;
1574             }
1575           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1576
1577           j = i;
1578           do
1579             {
1580               if (ld_options[j].opt.name != NULL
1581                   && ld_options[j].control != NO_HELP)
1582                 {
1583                   int two_dashes =
1584                     (ld_options[j].control == TWO_DASHES
1585                      || ld_options[j].control == EXACTLY_TWO_DASHES);
1586
1587                   printf ("%s-%s%s",
1588                           comma ? ", " : "",
1589                           two_dashes ? "-" : "",
1590                           ld_options[j].opt.name);
1591                   len += ((comma ? 2 : 0)
1592                           + 1
1593                           + (two_dashes ? 1 : 0)
1594                           + strlen (ld_options[j].opt.name));
1595                   if (ld_options[j].arg != NULL)
1596                     {
1597                       printf (" %s", _(ld_options[j].arg));
1598                       len += 1 + strlen (_(ld_options[j].arg));
1599                     }
1600                   comma = TRUE;
1601                 }
1602               ++j;
1603             }
1604           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1605
1606           if (len >= 30)
1607             {
1608               printf ("\n");
1609               len = 0;
1610             }
1611
1612           for (; len < 30; len++)
1613             putchar (' ');
1614
1615           printf ("%s\n", _(ld_options[i].doc));
1616         }
1617     }
1618   printf (_("  @FILE"));
1619   for (len = strlen ("  @FILE"); len < 30; len++)
1620     putchar (' ');
1621   printf (_("Read options from FILE\n"));
1622
1623   /* Note: Various tools (such as libtool) depend upon the
1624      format of the listings below - do not change them.  */
1625   /* xgettext:c-format */
1626   printf (_("%s: supported targets:"), program_name);
1627   targets = bfd_target_list ();
1628   for (pp = targets; *pp != NULL; pp++)
1629     printf (" %s", *pp);
1630   free (targets);
1631   printf ("\n");
1632
1633   /* xgettext:c-format */
1634   printf (_("%s: supported emulations: "), program_name);
1635   ldemul_list_emulations (stdout);
1636   printf ("\n");
1637
1638   /* xgettext:c-format */
1639   printf (_("%s: emulation specific options:\n"), program_name);
1640   ldemul_list_emulation_options (stdout);
1641   printf ("\n");
1642
1643   if (REPORT_BUGS_TO[0])
1644     printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
1645 }