ld/lexsup.c

   1 /* Parse options for the GNU linker.
   2    Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 1999
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GLD, the Gnu Linker.
   6
   7 GLD is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GLD is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GLD; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22 #include "bfd.h"
  23 #include "sysdep.h"
  24 #include "libiberty.h"
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <ctype.h>
  28 #include "getopt.h"
  29 #include "bfdlink.h"
  30 #include "ld.h"
  31 #include "ldmain.h"
  32 #include "ldmisc.h"
  33 #include "ldexp.h"
  34 #include "ldlang.h"
  35 #include "ldgram.h"
  36 #include "ldlex.h"
  37 #include "ldfile.h"
  38 #include "ldver.h"
  39 #include "ldemul.h"
  40
  41 #ifndef PATH_SEPARATOR
  42 #if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
  43 #define PATH_SEPARATOR ';'
  44 #else
  45 #define PATH_SEPARATOR ':'
  46 #endif
  47 #endif
  48
  49 /* Somewhere above, sys/stat.h got included . . . . */
  50 #if !defined(S_ISDIR) && defined(S_IFDIR)
  51 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
  52 #endif
  53
  54 /* Omit args to avoid the possibility of clashing with a system header
  55    that might disagree about consts.  */
  56 unsigned long strtoul ();
  57
  58 static void set_default_dirlist PARAMS ((char *dirlist_ptr));
  59 static void set_section_start PARAMS ((char *sect, char *valstr));
  60 static void help PARAMS ((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
  68 #define OPTION_ASSERT                   150
  69 #define OPTION_CALL_SHARED              (OPTION_ASSERT + 1)
  70 #define OPTION_CREF                     (OPTION_CALL_SHARED + 1)
  71 #define OPTION_DEFSYM                   (OPTION_CREF + 1)
  72 #define OPTION_DEMANGLE                 (OPTION_DEFSYM + 1)
  73 #define OPTION_DYNAMIC_LINKER           (OPTION_DEMANGLE + 1)
  74 #define OPTION_EB                       (OPTION_DYNAMIC_LINKER + 1)
  75 #define OPTION_EL                       (OPTION_EB + 1)
  76 #define OPTION_EMBEDDED_RELOCS          (OPTION_EL + 1)
  77 #define OPTION_EXPORT_DYNAMIC           (OPTION_EMBEDDED_RELOCS + 1)
  78 #define OPTION_HELP                     (OPTION_EXPORT_DYNAMIC + 1)
  79 #define OPTION_IGNORE                   (OPTION_HELP + 1)
  80 #define OPTION_MAP                      (OPTION_IGNORE + 1)
  81 #define OPTION_NO_DEMANGLE              (OPTION_MAP + 1)
  82 #define OPTION_NO_KEEP_MEMORY           (OPTION_NO_DEMANGLE + 1)
  83 #define OPTION_NO_WARN_MISMATCH         (OPTION_NO_KEEP_MEMORY + 1)
  84 #define OPTION_NOINHIBIT_EXEC           (OPTION_NO_WARN_MISMATCH + 1)
  85 #define OPTION_NON_SHARED               (OPTION_NOINHIBIT_EXEC + 1)
  86 #define OPTION_NO_WHOLE_ARCHIVE         (OPTION_NON_SHARED + 1)
  87 #define OPTION_OFORMAT                  (OPTION_NO_WHOLE_ARCHIVE + 1)
  88 #define OPTION_RELAX                    (OPTION_OFORMAT + 1)
  89 #define OPTION_RETAIN_SYMBOLS_FILE      (OPTION_RELAX + 1)
  90 #define OPTION_RPATH                    (OPTION_RETAIN_SYMBOLS_FILE + 1)
  91 #define OPTION_RPATH_LINK               (OPTION_RPATH + 1)
  92 #define OPTION_SHARED                   (OPTION_RPATH_LINK + 1)
  93 #define OPTION_SONAME                   (OPTION_SHARED + 1)
  94 #define OPTION_SORT_COMMON              (OPTION_SONAME + 1)
  95 #define OPTION_STATS                    (OPTION_SORT_COMMON + 1)
  96 #define OPTION_SYMBOLIC                 (OPTION_STATS + 1)
  97 #define OPTION_TASK_LINK                (OPTION_SYMBOLIC + 1)
  98 #define OPTION_TBSS                     (OPTION_TASK_LINK + 1)
  99 #define OPTION_TDATA                    (OPTION_TBSS + 1)
 100 #define OPTION_TTEXT                    (OPTION_TDATA + 1)
 101 #define OPTION_TRADITIONAL_FORMAT       (OPTION_TTEXT + 1)
 102 #define OPTION_UR                       (OPTION_TRADITIONAL_FORMAT + 1)
 103 #define OPTION_VERBOSE                  (OPTION_UR + 1)
 104 #define OPTION_VERSION                  (OPTION_VERBOSE + 1)
 105 #define OPTION_VERSION_SCRIPT           (OPTION_VERSION + 1)
 106 #define OPTION_VERSION_EXPORTS_SECTION  (OPTION_VERSION_SCRIPT + 1)
 107 #define OPTION_WARN_COMMON              (OPTION_VERSION_EXPORTS_SECTION + 1)
 108 #define OPTION_WARN_CONSTRUCTORS        (OPTION_WARN_COMMON + 1)
 109 #define OPTION_WARN_MULTIPLE_GP         (OPTION_WARN_CONSTRUCTORS + 1)
 110 #define OPTION_WARN_ONCE                (OPTION_WARN_MULTIPLE_GP + 1)
 111 #define OPTION_WARN_SECTION_ALIGN       (OPTION_WARN_ONCE + 1)
 112 #define OPTION_SPLIT_BY_RELOC           (OPTION_WARN_SECTION_ALIGN + 1)
 113 #define OPTION_SPLIT_BY_FILE            (OPTION_SPLIT_BY_RELOC + 1)
 114 #define OPTION_WHOLE_ARCHIVE            (OPTION_SPLIT_BY_FILE + 1)
 115 #define OPTION_WRAP                     (OPTION_WHOLE_ARCHIVE + 1)
 116 #define OPTION_FORCE_EXE_SUFFIX         (OPTION_WRAP + 1)
 117 #define OPTION_GC_SECTIONS              (OPTION_FORCE_EXE_SUFFIX + 1)
 118 #define OPTION_NO_GC_SECTIONS           (OPTION_GC_SECTIONS + 1)
 119 #define OPTION_CHECK_SECTIONS           (OPTION_NO_GC_SECTIONS + 1)
 120 #define OPTION_NO_CHECK_SECTIONS        (OPTION_CHECK_SECTIONS + 1)
 121 #define OPTION_MPC860C0                 (OPTION_NO_CHECK_SECTIONS + 1)
 122 #define OPTION_NO_UNDEFINED             (OPTION_MPC860C0 + 1)
 123
 124 /* The long options.  This structure is used for both the option
 125    parsing and the help text.  */
 126
 127 struct ld_option
 128 {
 129   /* The long option information.  */
 130   struct option opt;
 131   /* The short option with the same meaning ('\0' if none).  */
 132   char shortopt;
 133   /* The name of the argument (NULL if none).  */
 134   const char *arg;
 135   /* The documentation string.  If this is NULL, this is a synonym for
 136      the previous option.  */
 137   const char *doc;
 138   enum
 139     {
 140       /* Use one dash before long option name.  */
 141       ONE_DASH,
 142       /* Use two dashes before long option name.  */
 143       TWO_DASHES,
 144       /* Don't mention this option in --help output.  */
 145       NO_HELP
 146     } control;
 147 };
 148
 149 static const struct ld_option ld_options[] =
 150 {
 151   { {NULL, required_argument, NULL, '\0'},
 152       'a', N_("KEYWORD"), N_("Shared library control for HP/UX compatibility"),
 153       ONE_DASH },
 154   { {"architecture", required_argument, NULL, 'A'},
 155       'A', N_("ARCH"), N_("Set architecture") , TWO_DASHES },
 156   { {"format", required_argument, NULL, 'b'},
 157       'b', N_("TARGET"), N_("Specify target for following input files"), TWO_DASHES },
 158   { {"mri-script", required_argument, NULL, 'c'},
 159       'c', N_("FILE"), N_("Read MRI format linker script"), TWO_DASHES },
 160   { {"dc", no_argument, NULL, 'd'},
 161       'd', NULL, N_("Force common symbols to be defined"), ONE_DASH },
 162   { {"dp", no_argument, NULL, 'd'},
 163       '\0', NULL, NULL, ONE_DASH },
 164   { {"entry", required_argument, NULL, 'e'},
 165       'e', N_("ADDRESS"), N_("Set start address"), TWO_DASHES },
 166   { {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
 167       'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
 168   { {"EB", no_argument, NULL, OPTION_EB},
 169       '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
 170   { {"EL", no_argument, NULL, OPTION_EL},
 171       '\0', NULL, N_("Link little-endian objects"), ONE_DASH },
 172   { {"auxiliary", required_argument, NULL, 'f'},
 173       'f', N_("SHLIB"), N_("Auxiliary filter for shared object symbol table"),
 174       TWO_DASHES },
 175   { {"filter", required_argument, NULL, 'F'},
 176       'F', N_("SHLIB"), N_("Filter for shared object symbol table"), TWO_DASHES },
 177   { {NULL, no_argument, NULL, '\0'},
 178       'g', NULL, N_("Ignored"), ONE_DASH },
 179   { {"gpsize", required_argument, NULL, 'G'},
 180       'G', N_("SIZE"), N_("Small data size (if no size, same as --shared)"),
 181       TWO_DASHES },
 182   { {"soname", required_argument, NULL, OPTION_SONAME},
 183       'h', N_("FILENAME"), N_("Set internal name of shared library"), ONE_DASH },
 184   { {"library", required_argument, NULL, 'l'},
 185       'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES },
 186   { {"library-path", required_argument, NULL, 'L'},
 187       'L', N_("DIRECTORY"), N_("Add DIRECTORY to library search path"), TWO_DASHES },
 188   { {NULL, required_argument, NULL, '\0'},
 189       'm', N_("EMULATION"), N_("Set emulation"), ONE_DASH },
 190   { {"print-map", no_argument, NULL, 'M'},
 191       'M', NULL, N_("Print map file on standard output"), TWO_DASHES },
 192   { {"nmagic", no_argument, NULL, 'n'},
 193       'n', NULL, N_("Do not page align data"), TWO_DASHES },
 194   { {"omagic", no_argument, NULL, 'N'},
 195       'N', NULL, N_("Do not page align data, do not make text readonly"),
 196       TWO_DASHES },
 197   { {"output", required_argument, NULL, 'o'},
 198       'o', N_("FILE"), N_("Set output file name"), TWO_DASHES },
 199   { {NULL, required_argument, NULL, '\0'},
 200       'O', NULL, N_("Optimize output file"), ONE_DASH },
 201   { {"Qy", no_argument, NULL, OPTION_IGNORE},
 202       '\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
 203   { {"relocateable", no_argument, NULL, 'r'},
 204       'r', NULL, N_("Generate relocateable output"), TWO_DASHES },
 205   { {NULL, no_argument, NULL, '\0'},
 206       'i', NULL, NULL, ONE_DASH },
 207   { {"just-symbols", required_argument, NULL, 'R'},
 208       'R', N_("FILE"), N_("Just link symbols (if directory, same as --rpath)"),
 209       TWO_DASHES },
 210   { {"strip-all", no_argument, NULL, 's'},
 211       's', NULL, N_("Strip all symbols"), TWO_DASHES },
 212   { {"strip-debug", no_argument, NULL, 'S'},
 213       'S', NULL, N_("Strip debugging symbols"), TWO_DASHES },
 214   { {"trace", no_argument, NULL, 't'},
 215       't', NULL, N_("Trace file opens"), TWO_DASHES },
 216   { {"script", required_argument, NULL, 'T'},
 217       'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
 218   { {"undefined", required_argument, NULL, 'u'},
 219       'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), TWO_DASHES },
 220   { {"Ur", no_argument, NULL, OPTION_UR},
 221       '\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
 222   { {"version", no_argument, NULL, OPTION_VERSION},
 223       'v', NULL, N_("Print version information"), TWO_DASHES },
 224   { {NULL, no_argument, NULL, '\0'},
 225       'V', NULL, N_("Print version and emulation information"), ONE_DASH },
 226   { {"discard-all", no_argument, NULL, 'x'},
 227       'x', NULL, N_("Discard all local symbols"), TWO_DASHES },
 228   { {"discard-locals", no_argument, NULL, 'X'},
 229       'X', NULL, N_("Discard temporary local symbols"), TWO_DASHES },
 230   { {"trace-symbol", required_argument, NULL, 'y'},
 231       'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
 232   { {NULL, required_argument, NULL, '\0'},
 233       'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), ONE_DASH },
 234   { {NULL, required_argument, NULL, '\0'},
 235       'z', N_("KEYWORD"), N_("Ignored for Solaris compatibility"), ONE_DASH },
 236   { {"start-group", no_argument, NULL, '('},
 237       '(', NULL, N_("Start a group"), TWO_DASHES },
 238   { {"end-group", no_argument, NULL, ')'},
 239       ')', NULL, N_("End a group"), TWO_DASHES },
 240   { {"assert", required_argument, NULL, OPTION_ASSERT},
 241       '\0', N_("KEYWORD"), N_("Ignored for SunOS compatibility"), ONE_DASH },
 242   { {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
 243       '\0', NULL, N_("Link against shared libraries"), ONE_DASH },
 244   { {"dy", no_argument, NULL, OPTION_CALL_SHARED},
 245       '\0', NULL, NULL, ONE_DASH },
 246   { {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
 247       '\0', NULL, NULL, ONE_DASH },
 248   { {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
 249       '\0', NULL, N_("Do not link against shared libraries"), ONE_DASH },
 250   { {"dn", no_argument, NULL, OPTION_NON_SHARED},
 251       '\0', NULL, NULL, ONE_DASH },
 252   { {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
 253       '\0', NULL, NULL, ONE_DASH },
 254   { {"static", no_argument, NULL, OPTION_NON_SHARED},
 255       '\0', NULL, NULL, ONE_DASH },
 256   { {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
 257       '\0', NULL, N_("Bind global references locally"), ONE_DASH },
 258   { {"check-sections", no_argument, NULL, OPTION_CHECK_SECTIONS},
 259       '\0', NULL, N_("Check section addresses for overlaps (default)"), TWO_DASHES },
 260   { {"no-check-sections", no_argument, NULL, OPTION_NO_CHECK_SECTIONS},
 261       '\0', NULL, N_("Do not check section addresses for overlaps"),
 262       TWO_DASHES },
 263   { {"cref", no_argument, NULL, OPTION_CREF},
 264       '\0', NULL, N_("Output cross reference table"), TWO_DASHES },
 265   { {"defsym", required_argument, NULL, OPTION_DEFSYM},
 266       '\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
 267   { {"demangle", no_argument, NULL, OPTION_DEMANGLE},
 268       '\0', NULL, N_("Demangle symbol names"), TWO_DASHES },
 269   { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
 270       '\0', N_("PROGRAM"), N_("Set the dynamic linker to use"), TWO_DASHES },
 271   { {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
 272       '\0', NULL, N_("Generate embedded relocs"), TWO_DASHES},
 273   { {"force-exe-suffix", no_argument, NULL, OPTION_FORCE_EXE_SUFFIX},
 274       '\0', NULL, N_("Force generation of file with .exe suffix"), TWO_DASHES},
 275   { {"gc-sections", no_argument, NULL, OPTION_GC_SECTIONS},
 276       '\0', NULL, N_("Remove unused sections (on some targets)"),
 277       TWO_DASHES },
 278   { {"no-gc-sections", no_argument, NULL, OPTION_NO_GC_SECTIONS},
 279       '\0', NULL, N_("Don't remove unused sections (default)"),
 280       TWO_DASHES },
 281   { {"help", no_argument, NULL, OPTION_HELP},
 282       '\0', NULL, N_("Print option help"), TWO_DASHES },
 283   { {"Map", required_argument, NULL, OPTION_MAP},
 284       '\0', N_("FILE"), N_("Write a map file"), ONE_DASH },
 285   { {"no-demangle", no_argument, NULL, OPTION_NO_DEMANGLE },
 286       '\0', NULL, N_("Do not demangle symbol names"), TWO_DASHES },
 287   { {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
 288       '\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
 289   { {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
 290      '\0', NULL, N_("Allow no undefined symbols"), TWO_DASHES },
 291   { {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
 292       '\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
 293   { {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
 294       '\0', NULL, N_("Turn off --whole-archive"), TWO_DASHES },
 295   { {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 296       '\0', NULL, N_("Create an output file even if errors occur"), TWO_DASHES },
 297   { {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 298       '\0', NULL, NULL, NO_HELP },
 299   { {"oformat", required_argument, NULL, OPTION_OFORMAT},
 300       '\0', N_("TARGET"), N_("Specify target of output file"), TWO_DASHES },
 301   { {"qmagic", no_argument, NULL, OPTION_IGNORE},
 302       '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
 303   { {"relax", no_argument, NULL, OPTION_RELAX},
 304       '\0', NULL, N_("Relax branches on certain targets"), TWO_DASHES },
 305   { {"retain-symbols-file", required_argument, NULL,
 306        OPTION_RETAIN_SYMBOLS_FILE},
 307       '\0', N_("FILE"), N_("Keep only symbols listed in FILE"), TWO_DASHES },
 308   { {"rpath", required_argument, NULL, OPTION_RPATH},
 309       '\0', N_("PATH"), N_("Set runtime shared library search path"), ONE_DASH },
 310   { {"rpath-link", required_argument, NULL, OPTION_RPATH_LINK},
 311       '\0', N_("PATH"), N_("Set link time shared library search path"), ONE_DASH },
 312   { {"shared", no_argument, NULL, OPTION_SHARED},
 313       '\0', NULL, N_("Create a shared library"), ONE_DASH },
 314   { {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD.  */
 315       '\0', NULL, NULL, ONE_DASH },
 316   { {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
 317       '\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
 318   { {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
 319       '\0', NULL, NULL, NO_HELP },
 320   { {"split-by-file", no_argument, NULL, OPTION_SPLIT_BY_FILE},
 321       '\0', NULL, N_("Split output sections for each file"), TWO_DASHES },
 322   { {"split-by-reloc", required_argument, NULL, OPTION_SPLIT_BY_RELOC},
 323       '\0', N_("COUNT"), N_("Split output sections every COUNT relocs"), TWO_DASHES },
 324   { {"stats", no_argument, NULL, OPTION_STATS},
 325       '\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
 326   { {"task-link", required_argument, NULL, OPTION_TASK_LINK},
 327       '\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
 328   { {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
 329       '\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
 330   { {"Tbss", required_argument, NULL, OPTION_TBSS},
 331       '\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
 332   { {"Tdata", required_argument, NULL, OPTION_TDATA},
 333       '\0', N_("ADDRESS"), N_("Set address of .data section"), ONE_DASH },
 334   { {"Ttext", required_argument, NULL, OPTION_TTEXT},
 335       '\0', N_("ADDRESS"), N_("Set address of .text section"), ONE_DASH },
 336   { {"verbose", no_argument, NULL, OPTION_VERBOSE},
 337       '\0', NULL, N_("Output lots of information during link"), TWO_DASHES },
 338   { {"dll-verbose", no_argument, NULL, OPTION_VERBOSE}, /* Linux.  */
 339       '\0', NULL, NULL, NO_HELP },
 340   { {"version-script", required_argument, NULL, OPTION_VERSION_SCRIPT },
 341       '\0', N_("FILE"), N_("Read version information script"), TWO_DASHES },
 342   { {"version-exports-section", required_argument, NULL,
 343      OPTION_VERSION_EXPORTS_SECTION },
 344     '\0', N_("SYMBOL"), N_("Take export symbols list from .exports, using SYMBOL as the version."),
 345     TWO_DASHES },
 346   { {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
 347       '\0', NULL, N_("Warn about duplicate common symbols"), TWO_DASHES },
 348   { {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
 349       '\0', NULL, N_("Warn if global constructors/destructors are seen"),
 350       TWO_DASHES },
 351   { {"warn-multiple-gp", no_argument, NULL, OPTION_WARN_MULTIPLE_GP},
 352       '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
 353   { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
 354       '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
 355   { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
 356       '\0', NULL, N_("Warn if start of section changes due to alignment"),
 357       TWO_DASHES },
 358   { {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
 359       '\0', NULL, N_("Include all objects from following archives"), TWO_DASHES },
 360   { {"wrap", required_argument, NULL, OPTION_WRAP},
 361       '\0', N_("SYMBOL"), N_("Use wrapper functions for SYMBOL"), TWO_DASHES },
 362   { {"mpc860c0", optional_argument, NULL, OPTION_MPC860C0},
 363       '\0', N_("[=WORDS]"), N_("Modify problematic branches in last WORDS (1-10, default 5) words of a page"), TWO_DASHES }
 364 };
 365
 366 #define OPTION_COUNT ((int) (sizeof ld_options / sizeof ld_options[0]))
 367
 368 /* Test "string" for containing a string of digits that form a number
 369 between "min" and "max".  The return value is the number or "err". */
 370 static
 371 int is_num( char *string, int min, int max, int err)
 372 {
 373   int result = 0;
 374
 375   for ( ; *string; ++string)
 376   {
 377     if (!isdigit(*string))
 378     {
 379       result = err;
 380       break;
 381     }
 382     result = result * 10 + (*string - '0');
 383   }
 384   if (result < min || result > max)
 385     result = err;
 386
 387   return result;
 388 }
 389
 390 void
 391 parse_args (argc, argv)
 392      int argc;
 393      char **argv;
 394 {
 395   int i, is, il;
 396   int ingroup = 0;
 397   char *default_dirlist = NULL;
 398   char shortopts[OPTION_COUNT * 3 + 2];
 399   struct option longopts[OPTION_COUNT + 1];
 400   int last_optind;
 401
 402   /* Starting the short option string with '-' is for programs that
 403      expect options and other ARGV-elements in any order and that care about
 404      the ordering of the two.  We describe each non-option ARGV-element
 405      as if it were the argument of an option with character code 1.  */
 406   shortopts[0] = '-';
 407   is = 1;
 408   il = 0;
 409   for (i = 0; i < OPTION_COUNT; i++)
 410     {
 411       if (ld_options[i].shortopt != '\0')
 412         {
 413           shortopts[is] = ld_options[i].shortopt;
 414           ++is;
 415           if (ld_options[i].opt.has_arg == required_argument
 416               || ld_options[i].opt.has_arg == optional_argument)
 417             {
 418               shortopts[is] = ':';
 419               ++is;
 420               if (ld_options[i].opt.has_arg == optional_argument)
 421                 {
 422                   shortopts[is] = ':';
 423                   ++is;
 424                 }
 425             }
 426         }
 427       if (ld_options[i].opt.name != NULL)
 428         {
 429           longopts[il] = ld_options[i].opt;
 430           ++il;
 431         }
 432     }
 433   shortopts[is] = '\0';
 434   longopts[il].name = NULL;
 435
 436   /* The -G option is ambiguous on different platforms.  Sometimes it
 437      specifies the largest data size to put into the small data
 438      section.  Sometimes it is equivalent to --shared.  Unfortunately,
 439      the first form takes an argument, while the second does not.
 440
 441      We need to permit the --shared form because on some platforms,
 442      such as Solaris, gcc -shared will pass -G to the linker.
 443
 444      To permit either usage, we look through the argument list.  If we
 445      find -G not followed by a number, we change it into --shared.
 446      This will work for most normal cases.  */
 447   for (i = 1; i < argc; i++)
 448     if (strcmp (argv[i], "-G") == 0
 449         && (i + 1 >= argc
 450             || ! isdigit ((unsigned char) argv[i + 1][0])))
 451       argv[i] = (char *) "--shared";
 452
 453   /* Because we permit long options to start with a single dash, and
 454      we have a --library option, and the -l option is conventionally
 455      used with an immediately following argument, we can have bad
 456      results if somebody tries to use -l with a library whose name
 457      happens to start with "ibrary", as in -li.  We avoid problems by
 458      simply turning -l into --library.  This means that users will
 459      have to use two dashes in order to use --library, which is OK
 460      since that's how it is documented.
 461
 462      FIXME: It's possible that this problem can arise for other short
 463      options as well, although the user does always have the recourse
 464      of adding a space between the option and the argument.  */
 465   for (i = 1; i < argc; i++)
 466     {
 467       if (argv[i][0] == '-'
 468           && argv[i][1] == 'l'
 469           && argv[i][2] != '\0')
 470         {
 471           char *n;
 472
 473           n = (char *) xmalloc (strlen (argv[i]) + 20);
 474           sprintf (n, "--library=%s", argv[i] + 2);
 475           argv[i] = n;
 476         }
 477     }
 478
 479   last_optind = -1;
 480   while (1)
 481     {
 482       int longind;
 483       int optc;
 484
 485       /* Using last_optind lets us avoid calling ldemul_parse_args
 486          multiple times on a single option, which would lead to
 487          confusion in the internal static variables maintained by
 488          getopt.  This could otherwise happen for an argument like
 489          -nx, in which the -n is parsed as a single option, and we
 490          loop around to pick up the -x.  */
 491       if (optind != last_optind)
 492         {
 493           if (ldemul_parse_args (argc, argv))
 494             continue;
 495           last_optind = optind;
 496         }
 497
 498       /* getopt_long_only is like getopt_long, but '-' as well as '--'
 499          can indicate a long option.  */
 500       optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
 501
 502       if (optc == -1)
 503         break;
 504       switch (optc)
 505         {
 506         default:
 507           xexit (1);
 508         case 1:                 /* File name.  */
 509           lang_add_input_file (optarg, lang_input_file_is_file_enum,
 510                                (char *) NULL);
 511           break;
 512
 513         case OPTION_IGNORE:
 514           break;
 515         case 'a':
 516           /* For HP/UX compatibility.  Actually -a shared should mean
 517              ``use only shared libraries'' but, then, we don't
 518              currently support shared libraries on HP/UX anyhow.  */
 519           if (strcmp (optarg, "archive") == 0)
 520             config.dynamic_link = false;
 521           else if (strcmp (optarg, "shared") == 0
 522                    || strcmp (optarg, "default") == 0)
 523             config.dynamic_link = true;
 524           else
 525             einfo (_("%P%F: unrecognized -a option `%s'\n"), optarg);
 526           break;
 527         case OPTION_ASSERT:
 528           /* FIXME: We just ignore these, but we should handle them.  */
 529           if (strcmp (optarg, "definitions") == 0)
 530             ;
 531           else if (strcmp (optarg, "nodefinitions") == 0)
 532             ;
 533           else if (strcmp (optarg, "nosymbolic") == 0)
 534             ;
 535           else if (strcmp (optarg, "pure-text") == 0)
 536             ;
 537           else
 538             einfo (_("%P%F: unrecognized -assert option `%s'\n"), optarg);
 539           break;
 540         case 'A':
 541           ldfile_add_arch (optarg);
 542           break;
 543         case 'b':
 544           lang_add_target (optarg);
 545           break;
 546         case 'c':
 547           ldfile_open_command_file (optarg);
 548           parser_input = input_mri_script;
 549           yyparse ();
 550           break;
 551         case OPTION_CALL_SHARED:
 552           config.dynamic_link = true;
 553           break;
 554         case OPTION_NON_SHARED:
 555           config.dynamic_link = false;
 556           break;
 557         case OPTION_CREF:
 558           command_line.cref = true;
 559           link_info.notice_all = true;
 560           break;
 561         case 'd':
 562           command_line.force_common_definition = true;
 563           break;
 564         case OPTION_DEFSYM:
 565           lex_string = optarg;
 566           lex_redirect (optarg);
 567           parser_input = input_defsym;
 568           parsing_defsym = 1;
 569           yyparse ();
 570           parsing_defsym = 0;
 571           lex_string = NULL;
 572           break;
 573         case OPTION_DEMANGLE:
 574           demangling = true;
 575           break;
 576         case OPTION_DYNAMIC_LINKER:
 577           command_line.interpreter = optarg;
 578           break;
 579         case OPTION_EB:
 580           command_line.endian = ENDIAN_BIG;
 581           break;
 582         case OPTION_EL:
 583           command_line.endian = ENDIAN_LITTLE;
 584           break;
 585         case OPTION_EMBEDDED_RELOCS:
 586           command_line.embedded_relocs = true;
 587           break;
 588         case OPTION_EXPORT_DYNAMIC:
 589         case 'E': /* HP/UX compatibility.  */
 590           command_line.export_dynamic = true;
 591           break;
 592         case 'e':
 593           lang_add_entry (optarg, true);
 594           break;
 595         case 'f':
 596           if (command_line.auxiliary_filters == NULL)
 597             {
 598               command_line.auxiliary_filters =
 599                 (char **) xmalloc (2 * sizeof (char *));
 600               command_line.auxiliary_filters[0] = optarg;
 601               command_line.auxiliary_filters[1] = NULL;
 602             }
 603           else
 604             {
 605               int c;
 606               char **p;
 607
 608               c = 0;
 609               for (p = command_line.auxiliary_filters; *p != NULL; p++)
 610                 ++c;
 611               command_line.auxiliary_filters =
 612                 (char **) xrealloc (command_line.auxiliary_filters,
 613                                     (c + 2) * sizeof (char *));
 614               command_line.auxiliary_filters[c] = optarg;
 615               command_line.auxiliary_filters[c + 1] = NULL;
 616             }
 617           break;
 618         case 'F':
 619           command_line.filter_shlib = optarg;
 620           break;
 621         case OPTION_FORCE_EXE_SUFFIX:
 622           command_line.force_exe_suffix = true;
 623           break;
 624         case 'G':
 625           {
 626             char *end;
 627             g_switch_value = strtoul (optarg, &end, 0);
 628             if (*end)
 629               einfo (_("%P%F: invalid number `%s'\n"), optarg);
 630           }
 631           break;
 632         case 'g':
 633           /* Ignore.  */
 634           break;
 635         case OPTION_GC_SECTIONS:
 636           command_line.gc_sections = true;
 637           break;
 638         case OPTION_HELP:
 639           help ();
 640           xexit (0);
 641           break;
 642         case 'L':
 643           ldfile_add_library_path (optarg, true);
 644           break;
 645         case 'l':
 646           lang_add_input_file (optarg, lang_input_file_is_l_enum,
 647                                (char *) NULL);
 648           break;
 649         case 'M':
 650           config.map_filename = "-";
 651           break;
 652         case 'm':
 653           /* Ignore.  Was handled in a pre-parse.   */
 654           break;
 655         case OPTION_MAP:
 656           config.map_filename = optarg;
 657           break;
 658         case 'N':
 659           config.text_read_only = false;
 660           config.magic_demand_paged = false;
 661           config.dynamic_link = false;
 662           break;
 663         case 'n':
 664           config.magic_demand_paged = false;
 665           config.dynamic_link = false;
 666           break;
 667         case OPTION_NO_DEMANGLE:
 668           demangling = false;
 669           break;
 670         case OPTION_NO_GC_SECTIONS:
 671           command_line.gc_sections = false;
 672           break;
 673         case OPTION_NO_KEEP_MEMORY:
 674           link_info.keep_memory = false;
 675           break;
 676         case OPTION_NO_UNDEFINED:
 677           link_info.no_undefined = true;
 678           break;
 679         case OPTION_NO_WARN_MISMATCH:
 680           command_line.warn_mismatch = false;
 681           break;
 682         case OPTION_NOINHIBIT_EXEC:
 683           force_make_executable = true;
 684           break;
 685         case OPTION_NO_WHOLE_ARCHIVE:
 686           whole_archive = false;
 687           break;
 688         case 'O':
 689           /* FIXME "-O<non-digits> <value>" used to set the address of
 690              section <non-digits>.  Was this for compatibility with
 691              something, or can we create a new option to do that
 692              (with a syntax similar to -defsym)?
 693              getopt can't handle two args to an option without kludges.  */
 694
 695           /* Enable optimizations of output files.  */
 696           link_info.optimize = strtoul (optarg, NULL, 0) ? true : false;
 697           break;
 698         case 'o':
 699           lang_add_output (optarg, 0);
 700           break;
 701         case OPTION_OFORMAT:
 702           lang_add_output_format (optarg, (char *) NULL, (char *) NULL, 0);
 703           break;
 704         case 'i':
 705         case 'r':
 706           link_info.relocateable = true;
 707           config.build_constructors = false;
 708           config.magic_demand_paged = false;
 709           config.text_read_only = false;
 710           config.dynamic_link = false;
 711           break;
 712         case 'R':
 713           /* The GNU linker traditionally uses -R to mean to include
 714              only the symbols from a file.  The Solaris linker uses -R
 715              to set the path used by the runtime linker to find
 716              libraries.  This is the GNU linker -rpath argument.  We
 717              try to support both simultaneously by checking the file
 718              named.  If it is a directory, rather than a regular file,
 719              we assume -rpath was meant.  */
 720           {
 721             struct stat s;
 722
 723             if (stat (optarg, &s) >= 0
 724                 && ! S_ISDIR (s.st_mode))
 725               {
 726                 lang_add_input_file (optarg,
 727                                      lang_input_file_is_symbols_only_enum,
 728                                      (char *) NULL);
 729                 break;
 730               }
 731           }
 732           /* Fall through.  */
 733         case OPTION_RPATH:
 734           if (command_line.rpath == NULL)
 735             command_line.rpath = buystring (optarg);
 736           else
 737             {
 738               size_t rpath_len = strlen (command_line.rpath);
 739               size_t optarg_len = strlen (optarg);
 740               char *buf;
 741               char *cp = command_line.rpath;
 742
 743               /* First see whether OPTARG is already in the path.  */
 744               do
 745                 {
 746                   size_t idx = 0;
 747                   while (optarg[idx] != '\0' && optarg[idx] == cp[idx])
 748                     ++idx;
 749                   if (optarg[idx] == '\0'
 750                       && (cp[idx] == '\0' || cp[idx] == ':'))
 751                     /* We found it.  */
 752                     break;
 753
 754                   /* Not yet found.  */
 755                   cp = strchr (cp, ':');
 756                   if (cp != NULL)
 757                     ++cp;
 758                 }
 759               while (cp != NULL);
 760
 761               if (cp == NULL)
 762                 {
 763                   buf = xmalloc (rpath_len + optarg_len + 2);
 764                   sprintf (buf, "%s:%s", command_line.rpath, optarg);
 765                   free (command_line.rpath);
 766                   command_line.rpath = buf;
 767                 }
 768             }
 769           break;
 770         case OPTION_RPATH_LINK:
 771           if (command_line.rpath_link == NULL)
 772             command_line.rpath_link = buystring (optarg);
 773           else
 774             {
 775               char *buf;
 776
 777               buf = xmalloc (strlen (command_line.rpath_link)
 778                              + strlen (optarg)
 779                              + 2);
 780               sprintf (buf, "%s:%s", command_line.rpath_link, optarg);
 781               free (command_line.rpath_link);
 782               command_line.rpath_link = buf;
 783             }
 784           break;
 785         case OPTION_RELAX:
 786           command_line.relax = true;
 787           break;
 788         case OPTION_RETAIN_SYMBOLS_FILE:
 789           add_keepsyms_file (optarg);
 790           break;
 791         case 'S':
 792           link_info.strip = strip_debugger;
 793           break;
 794         case 's':
 795           link_info.strip = strip_all;
 796           break;
 797         case OPTION_SHARED:
 798           if (config.has_shared)
 799             link_info.shared = true;
 800           else
 801             einfo (_("%P%F: -shared not supported\n"));
 802           break;
 803         case 'h':               /* Used on Solaris.  */
 804         case OPTION_SONAME:
 805           command_line.soname = optarg;
 806           break;
 807         case OPTION_SORT_COMMON:
 808           config.sort_common = true;
 809           break;
 810         case OPTION_STATS:
 811           config.stats = true;
 812           break;
 813         case OPTION_SYMBOLIC:
 814           link_info.symbolic = true;
 815           break;
 816         case 't':
 817           trace_files = true;
 818           break;
 819         case 'T':
 820           ldfile_open_command_file (optarg);
 821           parser_input = input_script;
 822           yyparse ();
 823           break;
 824         case OPTION_TBSS:
 825           set_section_start (".bss", optarg);
 826           break;
 827         case OPTION_TDATA:
 828           set_section_start (".data", optarg);
 829           break;
 830         case OPTION_TTEXT:
 831           set_section_start (".text", optarg);
 832           break;
 833         case OPTION_TRADITIONAL_FORMAT:
 834           link_info.traditional_format = true;
 835           break;
 836         case OPTION_TASK_LINK:
 837           link_info.task_link = true;
 838           /* Fall through - do an implied -r option.  */
 839         case OPTION_UR:
 840           link_info.relocateable = true;
 841           config.build_constructors = true;
 842           config.magic_demand_paged = false;
 843           config.text_read_only = false;
 844           config.dynamic_link = false;
 845           break;
 846         case 'u':
 847           ldlang_add_undef (optarg);
 848           break;
 849         case OPTION_VERBOSE:
 850           ldversion (1);
 851           version_printed = true;
 852           trace_file_tries = true;
 853           break;
 854         case 'v':
 855           ldversion (0);
 856           version_printed = true;
 857           break;
 858         case 'V':
 859           ldversion (1);
 860           version_printed = true;
 861           break;
 862         case OPTION_VERSION:
 863           /* This output is intended to follow the GNU standards document.  */
 864           printf ("GNU ld %s\n", ld_program_version);
 865           printf (_("Copyright 1997 Free Software Foundation, Inc.\n"));
 866           printf (_("\
 867 This program is free software; you may redistribute it under the terms of\n\
 868 the GNU General Public License.  This program has absolutely no warranty.\n"));
 869           {
 870             ld_emulation_xfer_type **ptr = ld_emulations;
 871
 872             printf (_("  Supported emulations:\n"));
 873             while (*ptr)
 874               {
 875                 printf ("   %s\n", (*ptr)->emulation_name);
 876                 ptr++;
 877               }
 878           }
 879           xexit (0);
 880           break;
 881         case OPTION_VERSION_SCRIPT:
 882           /* This option indicates a small script that only specifies
 883              version information.  Read it, but don't assume that
 884              we've seen a linker script.  */
 885           {
 886             boolean hold_had_script;
 887
 888             hold_had_script = had_script;
 889             ldfile_open_command_file (optarg);
 890             had_script = hold_had_script;
 891             parser_input = input_version_script;
 892             yyparse ();
 893           }
 894           break;
 895         case OPTION_VERSION_EXPORTS_SECTION:
 896           /* This option records a version symbol to be applied to the
 897              symbols listed for export to be found in the object files
 898              .exports sections.  */
 899           command_line.version_exports_section = optarg;
 900           break;
 901         case OPTION_WARN_COMMON:
 902           config.warn_common = true;
 903           break;
 904         case OPTION_WARN_CONSTRUCTORS:
 905           config.warn_constructors = true;
 906           break;
 907         case OPTION_WARN_MULTIPLE_GP:
 908           config.warn_multiple_gp = true;
 909           break;
 910         case OPTION_WARN_ONCE:
 911           config.warn_once = true;
 912           break;
 913         case OPTION_WARN_SECTION_ALIGN:
 914           config.warn_section_align = true;
 915           break;
 916         case OPTION_WHOLE_ARCHIVE:
 917           whole_archive = true;
 918           break;
 919         case OPTION_WRAP:
 920           add_wrap (optarg);
 921           break;
 922         case 'X':
 923           link_info.discard = discard_l;
 924           break;
 925         case 'x':
 926           link_info.discard = discard_all;
 927           break;
 928         case 'Y':
 929           if (strncmp (optarg, "P,", 2) == 0)
 930             optarg += 2;
 931           default_dirlist = xstrdup (optarg);
 932           break;
 933         case 'y':
 934           add_ysym (optarg);
 935           break;
 936         case 'z':
 937           /* We accept and ignore this option for Solaris
 938              compatibility.  Actually, on Solaris, optarg is not
 939              ignored.  Someday we should handle it correctly.  FIXME.  */
 940           break;
 941         case OPTION_SPLIT_BY_RELOC:
 942           config.split_by_reloc = atoi (optarg);
 943           break;
 944         case OPTION_SPLIT_BY_FILE:
 945           config.split_by_file = true;
 946           break;
 947         case OPTION_CHECK_SECTIONS:
 948           command_line.check_section_addresses = true;
 949           break;
 950         case OPTION_NO_CHECK_SECTIONS:
 951           command_line.check_section_addresses = false;
 952           break;
 953         case '(':
 954           if (ingroup)
 955             {
 956               fprintf (stderr,
 957                        _("%s: may not nest groups (--help for usage)\n"),
 958                        program_name);
 959               xexit (1);
 960             }
 961           lang_enter_group ();
 962           ingroup = 1;
 963           break;
 964         case ')':
 965           if (! ingroup)
 966             {
 967               fprintf (stderr,
 968                        _("%s: group ended before it began (--help for usage)\n"),
 969                        program_name);
 970               xexit (1);
 971             }
 972           lang_leave_group ();
 973           ingroup = 0;
 974           break;
 975       case OPTION_MPC860C0:
 976           link_info.mpc860c0 = 20;      /* default value (in bytes) */
 977           if (optarg)
 978             {
 979               unsigned words;
 980
 981               words = is_num (optarg, 1, 10, 0);
 982               if (words == 0)
 983                 {
 984                   fprintf (stderr, _("Invalid argument to option \"mpc860c0\"\n"));
 985                   xexit (1);
 986                 }
 987               link_info.mpc860c0 = words * 4;   /* convert words to bytes */
 988             }
 989           command_line.relax = true;
 990           break;
 991         }
 992     }
 993
 994   if (ingroup)
 995     lang_leave_group ();
 996
 997   if (default_dirlist != NULL)
 998     set_default_dirlist (default_dirlist);
 999
1000 }
1001
1002 /* Add the (colon-separated) elements of DIRLIST_PTR to the
1003    library search path.  */
1004
1005 static void
1006 set_default_dirlist (dirlist_ptr)
1007      char *dirlist_ptr;
1008 {
1009   char *p;
1010
1011   while (1)
1012     {
1013       p = strchr (dirlist_ptr, PATH_SEPARATOR);
1014       if (p != NULL)
1015         *p = '\0';
1016       if (*dirlist_ptr != '\0')
1017         ldfile_add_library_path (dirlist_ptr, true);
1018       if (p == NULL)
1019         break;
1020       dirlist_ptr = p + 1;
1021     }
1022 }
1023
1024 static void
1025 set_section_start (sect, valstr)
1026      char *sect, *valstr;
1027 {
1028   char *end;
1029   unsigned long val = strtoul (valstr, &end, 16);
1030   if (*end)
1031     einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
1032   lang_section_start (sect, exp_intop (val));
1033 }
1034 \f
1035 /* Print help messages for the options.  */
1036
1037 static void
1038 help ()
1039 {
1040   int i;
1041   const char **targets, **pp;
1042
1043   printf (_("Usage: %s [options] file...\n"), program_name);
1044
1045   printf (_("Options:\n"));
1046   for (i = 0; i < OPTION_COUNT; i++)
1047     {
1048       if (ld_options[i].doc != NULL)
1049         {
1050           boolean comma;
1051           int len;
1052           int j;
1053
1054           printf ("  ");
1055
1056           comma = false;
1057           len = 2;
1058
1059           j = i;
1060           do
1061             {
1062               if (ld_options[j].shortopt != '\0'
1063                   && ld_options[j].control != NO_HELP)
1064                 {
1065                   printf ("%s-%c", comma ? ", " : "", ld_options[j].shortopt);
1066                   len += (comma ? 2 : 0) + 2;
1067                   if (ld_options[j].arg != NULL)
1068                     {
1069                       if (ld_options[j].opt.has_arg != optional_argument)
1070                         {
1071                           printf (" ");
1072                           ++len;
1073                         }
1074                       printf ("%s", _(ld_options[j].arg));
1075                       len += strlen (_(ld_options[j].arg));
1076                     }
1077                   comma = true;
1078                 }
1079               ++j;
1080             }
1081           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1082
1083           j = i;
1084           do
1085             {
1086               if (ld_options[j].opt.name != NULL
1087                   && ld_options[j].control != NO_HELP)
1088                 {
1089                   printf ("%s-%s%s",
1090                           comma ? ", " : "",
1091                           ld_options[j].control == TWO_DASHES ? "-" : "",
1092                           ld_options[j].opt.name);
1093                   len += ((comma ? 2 : 0)
1094                           + 1
1095                           + (ld_options[j].control == TWO_DASHES ? 1 : 0)
1096                           + strlen (ld_options[j].opt.name));
1097                   if (ld_options[j].arg != NULL)
1098                     {
1099                       printf (" %s", _(ld_options[j].arg));
1100                       len += 1 + strlen (_(ld_options[j].arg));
1101                     }
1102                   comma = true;
1103                 }
1104               ++j;
1105             }
1106           while (j < OPTION_COUNT && ld_options[j].doc == NULL);
1107
1108           if (len >= 30)
1109             {
1110               printf ("\n");
1111               len = 0;
1112             }
1113
1114           for (; len < 30; len++)
1115             putchar (' ');
1116
1117           printf ("%s\n", _(ld_options[i].doc));
1118         }
1119     }
1120
1121   /* xgettext:c-format */
1122   printf (_("%s: supported targets:"), program_name);
1123   targets = bfd_target_list ();
1124   for (pp = targets; *pp != NULL; pp++)
1125     printf (" %s", *pp);
1126   free (targets);
1127   printf ("\n");
1128
1129   /* xgettext:c-format */
1130   printf (_("%s: supported emulations: "), program_name);
1131   ldemul_list_emulations (stdout);
1132   printf ("\n");
1133
1134   /* xgettext:c-format */
1135   printf (_("%s: emulation specific options:\n"), program_name);
1136   ldemul_list_emulation_options (stdout);
1137   printf ("\n");
1138
1139   printf (_("\nReport bugs to bug-gnu-utils@gnu.org\n"));
1140 }