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