ld/lexsup.c

   1 /* Parse options for the GNU linker.
   2    Copyright (C) 1991, 92, 93, 94, 1995 Free Software Foundation, Inc.
   3
   4 This file is part of GLD, the Gnu Linker.
   5
   6 GLD is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GLD is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GLD; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #include "bfd.h"
  21 #include "sysdep.h"
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <ctype.h>
  25 #include "getopt.h"
  26 #include "bfdlink.h"
  27 #include "config.h"
  28 #include "ld.h"
  29 #include "ldmain.h"
  30 #include "ldmisc.h"
  31 #include "ldexp.h"
  32 #include "ldlang.h"
  33 #include "ldgram.h"
  34 #include "ldlex.h"
  35 #include "ldfile.h"
  36 #include "ldver.h"
  37
  38 /* Somewhere above, sys/stat.h got included . . . . */
  39 #if !defined(S_ISDIR) && defined(S_IFDIR)
  40 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
  41 #endif
  42
  43 /* Omit args to avoid the possibility of clashing with a system header
  44    that might disagree about consts.  */
  45 unsigned long strtoul ();
  46
  47 static void set_default_dirlist PARAMS ((char *dirlist_ptr));
  48 static void set_section_start PARAMS ((char *sect, char *valstr));
  49
  50 /* PE format; declare additional functions */
  51 static void set_pe_subsystem PARAMS ((void));
  52 static void set_pe_stack_heap PARAMS ((bfd_link_pe_info_dval *reserve,
  53                                     bfd_link_pe_info_dval *commit));
  54 static void set_pe_value PARAMS ((bfd_link_pe_info_dval *val));
  55
  56 /* PE info; passed to bfd if any pe options set. */
  57 static bfd_link_pe_info pe_info;
  58
  59
  60 void
  61 parse_args (argc, argv)
  62      int argc;
  63      char **argv;
  64 {
  65   int i;
  66   int ingroup = 0;
  67
  68   /* Starting the short option string with '-' is for programs that
  69      expect options and other ARGV-elements in any order and that care about
  70      the ordering of the two.  We describe each non-option ARGV-element
  71      as if it were the argument of an option with character code 1.  */
  72
  73   const char *shortopts =
  74     "-a:A:B::b:c:de:F::G:gh:iL:l:Mm:NnO:o:R:rSsT:tu:VvXxY:y:z:()";
  75
  76   /* 150 isn't special; it's just an arbitrary non-ASCII char value.  */
  77
  78 #define OPTION_CALL_SHARED              150
  79 #define OPTION_DEFSYM                   (OPTION_CALL_SHARED + 1)
  80 #define OPTION_DYNAMIC_LINKER           (OPTION_DEFSYM + 1)
  81 #define OPTION_EB                       (OPTION_DYNAMIC_LINKER + 1)
  82 #define OPTION_EL                       (OPTION_EB + 1)
  83 #define OPTION_HEAP                     (OPTION_EL + 1)
  84 #define OPTION_EMBEDDED_RELOCS          (OPTION_HEAP + 1)
  85 #define OPTION_EXPORT_DYNAMIC           (OPTION_EMBEDDED_RELOCS + 1)
  86 #define OPTION_HELP                     (OPTION_EXPORT_DYNAMIC + 1)
  87 #define OPTION_IGNORE                   (OPTION_HELP + 1)
  88 #define OPTION_MAP                      (OPTION_IGNORE + 1)
  89 #define OPTION_NO_KEEP_MEMORY           (OPTION_MAP + 1)
  90 #define OPTION_NOINHIBIT_EXEC           (OPTION_NO_KEEP_MEMORY + 1)
  91 #define OPTION_NON_SHARED               (OPTION_NOINHIBIT_EXEC + 1)
  92 #define OPTION_OFORMAT                  (OPTION_NON_SHARED + 1)
  93 #define OPTION_RELAX                    (OPTION_OFORMAT + 1)
  94 #define OPTION_RETAIN_SYMBOLS_FILE      (OPTION_RELAX + 1)
  95 #define OPTION_RPATH                    (OPTION_RETAIN_SYMBOLS_FILE + 1)
  96 #define OPTION_SHARED                   (OPTION_RPATH + 1)
  97 #define OPTION_SONAME                   (OPTION_SHARED + 1)
  98 #define OPTION_SORT_COMMON              (OPTION_SONAME + 1)
  99 #define OPTION_STATS                    (OPTION_SORT_COMMON + 1)
 100 #define OPTION_SYMBOLIC                 (OPTION_STATS + 1)
 101 #define OPTION_TBSS                     (OPTION_SYMBOLIC + 1)
 102 #define OPTION_TDATA                    (OPTION_TBSS + 1)
 103 #define OPTION_TTEXT                    (OPTION_TDATA + 1)
 104 #define OPTION_TRADITIONAL_FORMAT       (OPTION_TTEXT + 1)
 105 #define OPTION_UR                       (OPTION_TRADITIONAL_FORMAT + 1)
 106 #define OPTION_VERBOSE                  (OPTION_UR + 1)
 107 #define OPTION_VERSION                  (OPTION_VERBOSE + 1)
 108 #define OPTION_WARN_COMMON              (OPTION_VERSION + 1)
 109 #define OPTION_WARN_CONSTRUCTORS        (OPTION_WARN_COMMON + 1)
 110 #define OPTION_WARN_ONCE                (OPTION_WARN_CONSTRUCTORS + 1)
 111 #define OPTION_SPLIT_BY_RELOC           (OPTION_WARN_ONCE + 1)
 112 #define OPTION_SPLIT_BY_FILE            (OPTION_SPLIT_BY_RELOC + 1)
 113 #define OPTION_WHOLE_ARCHIVE            (OPTION_SPLIT_BY_FILE + 1)
 114
 115 /* Used for setting flags in the PE header. */
 116 #define OPTION_BASE_FILE                (OPTION_WHOLE_ARCHIVE + 1)
 117 #define OPTION_DLL                      (OPTION_BASE_FILE + 1)
 118 #define OPTION_FILE_ALIGNMENT           (OPTION_DLL + 1)
 119 #define OPTION_IMAGE_BASE               (OPTION_FILE_ALIGNMENT + 1)
 120 #define OPTION_MAJOR_IMAGE_VERSION      (OPTION_IMAGE_BASE + 1)
 121 #define OPTION_MAJOR_OS_VERSION         (OPTION_MAJOR_IMAGE_VERSION + 1)
 122 #define OPTION_MAJOR_SUBSYSTEM_VERSION  (OPTION_MAJOR_OS_VERSION + 1)
 123 #define OPTION_MINOR_IMAGE_VERSION      (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
 124 #define OPTION_MINOR_OS_VERSION         (OPTION_MINOR_IMAGE_VERSION + 1)
 125 #define OPTION_MINOR_SUBSYSTEM_VERSION  (OPTION_MINOR_OS_VERSION + 1)
 126 #define OPTION_SECTION_ALIGNMENT        (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
 127 #define OPTION_STACK                    (OPTION_SECTION_ALIGNMENT + 1)
 128 #define OPTION_SUBSYSTEM                (OPTION_STACK + 1)
 129
 130   static struct option longopts[] = {
 131   /* Sorted alphabeticaly, except for the PE options grouped at the end. */
 132     {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
 133     {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
 134     {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
 135     {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
 136     {"dc", no_argument, NULL, 'd'},
 137     {"defsym", required_argument, NULL, OPTION_DEFSYM},
 138     {"dll-verbose", no_argument, NULL, OPTION_VERSION}, /* Linux.  */
 139     {"dn", no_argument, NULL, OPTION_NON_SHARED},
 140     {"dp", no_argument, NULL, 'd'},
 141     {"dy", no_argument, NULL, OPTION_CALL_SHARED},
 142     {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
 143     {"EB", no_argument, NULL, OPTION_EB},
 144     {"EL", no_argument, NULL, OPTION_EL},
 145     {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
 146     {"end-group", no_argument, NULL, ')'},
 147     {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
 148     {"format", required_argument, NULL, 'b'},
 149     {"help", no_argument, NULL, OPTION_HELP},
 150     {"Map", required_argument, NULL, OPTION_MAP},
 151     {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
 152     {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 153     {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 154     {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
 155     {"oformat", required_argument, NULL, OPTION_OFORMAT},
 156     {"Qy", no_argument, NULL, OPTION_IGNORE},
 157     {"qmagic", no_argument, NULL, OPTION_IGNORE}, /* Linux compatibility.  */
 158     {"relax", no_argument, NULL, OPTION_RELAX},
 159     {"retain-symbols-file", required_argument, NULL, OPTION_RETAIN_SYMBOLS_FILE},
 160     {"rpath", required_argument, NULL, OPTION_RPATH},
 161     {"shared", no_argument, NULL, OPTION_SHARED},
 162     {"soname", required_argument, NULL, OPTION_SONAME},
 163     {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
 164     {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
 165     {"start-group", no_argument, NULL, '('},
 166     {"stats", no_argument, NULL, OPTION_STATS},
 167     {"static", no_argument, NULL, OPTION_NON_SHARED},
 168     {"Tbss", required_argument, NULL, OPTION_TBSS},
 169     {"Tdata", required_argument, NULL, OPTION_TDATA},
 170     {"Ttext", required_argument, NULL, OPTION_TTEXT},
 171     {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
 172     {"Ur", no_argument, NULL, OPTION_UR},
 173     {"verbose", no_argument, NULL, OPTION_VERBOSE},
 174     {"version", no_argument, NULL, OPTION_VERSION},
 175     {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
 176     {"warn-constructors", no_argument, NULL, OPTION_WARN_CONSTRUCTORS},
 177     {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
 178     {"split-by-reloc", required_argument, NULL, OPTION_SPLIT_BY_RELOC},
 179     {"split-by-file", no_argument, NULL, OPTION_SPLIT_BY_FILE},
 180     {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
 181
 182   /* PE options */
 183     {"base-file", required_argument, NULL, OPTION_BASE_FILE},
 184     {"dll", no_argument, NULL, OPTION_DLL},
 185     {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
 186     {"heap", required_argument, NULL, OPTION_HEAP},
 187     {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
 188     {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
 189     {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
 190     {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
 191     {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
 192     {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
 193     {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
 194     {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
 195     {"stack", required_argument, NULL, OPTION_STACK},
 196     {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
 197
 198     {NULL, no_argument, NULL, 0}
 199   };
 200
 201   /* The -G option is ambiguous on different platforms.  Sometimes it
 202      specifies the largest data size to put into the small data
 203      section.  Sometimes it is equivalent to --shared.  Unfortunately,
 204      the first form takes an argument, while the second does not.
 205
 206      We need to permit the --shared form because on some platforms,
 207      such as Solaris, gcc -shared will pass -G to the linker.
 208
 209      To permit either usage, we look through the argument list.  If we
 210      find -G not followed by a number, we change it into --shared.
 211      This will work for most normal cases.  */
 212   for (i = 1; i < argc; i++)
 213     if (strcmp (argv[i], "-G") == 0
 214         && (i + 1 >= argc
 215             || ! isdigit (argv[i + 1][0])))
 216       argv[i] = (char *) "--shared";
 217
 218   while (1)
 219     {
 220       /* getopt_long_only is like getopt_long, but '-' as well as '--' can
 221          indicate a long option.  */
 222       int longind;
 223       int optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
 224
 225       if (optc == -1)
 226         break;
 227
 228       switch (optc)
 229         {
 230         default:
 231           xexit (1);
 232         case 1:                 /* File name.  */
 233           lang_add_input_file (optarg, lang_input_file_is_file_enum,
 234                                (char *) NULL);
 235           break;
 236
 237         case OPTION_IGNORE:
 238           break;
 239         case 'a':
 240           /* For HP/UX compatibility.  Actually -a shared should mean
 241              ``use only shared libraries'' but, then, we don't
 242              currently support shared libraries on HP/UX anyhow.  */
 243           if (strcmp (optarg, "archive") == 0)
 244             config.dynamic_link = false;
 245           else if (strcmp (optarg, "shared") == 0
 246                    || strcmp (optarg, "default") == 0)
 247             config.dynamic_link = true;
 248           else
 249             einfo ("%P%F: unrecognized -a option `%s'\n", optarg);
 250           break;
 251         case 'A':
 252           ldfile_add_arch (optarg);
 253           break;
 254         case 'b':
 255           lang_add_target (optarg);
 256           break;
 257         case 'c':
 258           ldfile_open_command_file (optarg);
 259           parser_input = input_mri_script;
 260           yyparse ();
 261           break;
 262         case OPTION_CALL_SHARED:
 263           config.dynamic_link = true;
 264           break;
 265         case OPTION_NON_SHARED:
 266           config.dynamic_link = false;
 267           break;
 268         case 'd':
 269           command_line.force_common_definition = true;
 270           break;
 271         case OPTION_DEFSYM:
 272           lex_redirect (optarg);
 273           parser_input = input_defsym;
 274           yyparse ();
 275           break;
 276         case OPTION_DYNAMIC_LINKER:
 277           command_line.interpreter = optarg;
 278           break;
 279         case OPTION_EB:
 280           command_line.endian = ENDIAN_BIG;
 281           break;
 282         case OPTION_EL:
 283           command_line.endian = ENDIAN_LITTLE;
 284           break;
 285         case OPTION_EMBEDDED_RELOCS:
 286           command_line.embedded_relocs = true;
 287           break;
 288         case OPTION_EXPORT_DYNAMIC:
 289           command_line.export_dynamic = true;
 290           break;
 291         case 'e':
 292           lang_add_entry (optarg, 1);
 293           break;
 294         case 'F':
 295           /* Ignore.  */
 296           break;
 297         case 'G':
 298           {
 299             char *end;
 300             g_switch_value = strtoul (optarg, &end, 0);
 301             if (*end)
 302               einfo ("%P%F: invalid number `%s'\n", optarg);
 303           }
 304           break;
 305         case 'g':
 306           /* Ignore.  */
 307           break;
 308         case OPTION_HELP:
 309           help ();
 310           xexit (0);
 311           break;
 312         case 'L':
 313           ldfile_add_library_path (optarg, true);
 314           break;
 315         case 'l':
 316           lang_add_input_file (optarg, lang_input_file_is_l_enum,
 317                                (char *) NULL);
 318           break;
 319         case 'M':
 320           config.map_filename = "-";
 321           break;
 322         case 'm':
 323           /* Ignore.  Was handled in a pre-parse.   */
 324           break;
 325         case OPTION_MAP:
 326           config.map_filename = optarg;
 327           break;
 328         case 'N':
 329           config.text_read_only = false;
 330           config.magic_demand_paged = false;
 331           break;
 332         case 'n':
 333           config.magic_demand_paged = false;
 334           break;
 335         case OPTION_NO_KEEP_MEMORY:
 336           link_info.keep_memory = false;
 337           break;
 338         case OPTION_NOINHIBIT_EXEC:
 339           force_make_executable = true;
 340           break;
 341         case 'O':
 342           /* FIXME "-O<non-digits> <value>" used to set the address of
 343              section <non-digits>.  Was this for compatibility with
 344              something, or can we create a new option to do that
 345              (with a syntax similar to -defsym)?
 346              getopt can't handle two args to an option without kludges.  */
 347           set_default_dirlist (optarg);
 348           break;
 349         case 'o':
 350           lang_add_output (optarg, 0);
 351           break;
 352         case OPTION_OFORMAT:
 353           lang_add_output_format (optarg, (char *) NULL, (char *) NULL, 0);
 354           break;
 355         case 'i':
 356         case 'r':
 357           link_info.relocateable = true;
 358           config.build_constructors = false;
 359           config.magic_demand_paged = false;
 360           config.text_read_only = false;
 361           config.dynamic_link = false;
 362           break;
 363         case 'R':
 364           /* The GNU linker traditionally uses -R to mean to include
 365              only the symbols from a file.  The Solaris linker uses -R
 366              to set the path used by the runtime linker to find
 367              libraries.  This is the GNU linker -rpath argument.  We
 368              try to support both simultaneously by checking the file
 369              named.  If it is a directory, rather than a regular file,
 370              we assume -rpath was meant.  */
 371           {
 372             struct stat s;
 373
 374             if (stat (optarg, &s) >= 0
 375                 && ! S_ISDIR (s.st_mode))
 376               {
 377                 lang_add_input_file (optarg,
 378                                      lang_input_file_is_symbols_only_enum,
 379                                      (char *) NULL);
 380                 break;
 381               }
 382           }
 383           /* Fall through.  */
 384         case OPTION_RPATH:
 385           if (command_line.rpath == NULL)
 386             command_line.rpath = buystring (optarg);
 387           else
 388             {
 389               char *buf;
 390
 391               buf = xmalloc (strlen (command_line.rpath)
 392                              + strlen (optarg)
 393                              + 2);
 394               sprintf (buf, "%s:%s", command_line.rpath, optarg);
 395               free (command_line.rpath);
 396               command_line.rpath = buf;
 397             }
 398           break;
 399         case OPTION_RELAX:
 400           command_line.relax = true;
 401           break;
 402         case OPTION_RETAIN_SYMBOLS_FILE:
 403           add_keepsyms_file (optarg);
 404           break;
 405         case 'S':
 406           link_info.strip = strip_debugger;
 407           break;
 408         case 's':
 409           link_info.strip = strip_all;
 410           break;
 411         case OPTION_SHARED:
 412           link_info.shared = true;
 413           break;
 414         case 'h': /* Used on Solaris.  */
 415         case OPTION_SONAME:
 416           command_line.soname = optarg;
 417           break;
 418         case OPTION_SORT_COMMON:
 419           config.sort_common = true;
 420           break;
 421         case OPTION_STATS:
 422           config.stats = true;
 423           break;
 424         case OPTION_SYMBOLIC:
 425           link_info.symbolic = true;
 426           break;
 427         case 't':
 428           trace_files = true;
 429           break;
 430         case 'T':
 431           ldfile_open_command_file (optarg);
 432           parser_input = input_script;
 433           yyparse ();
 434           break;
 435         case OPTION_TBSS:
 436           set_section_start (".bss", optarg);
 437           break;
 438         case OPTION_TDATA:
 439           set_section_start (".data", optarg);
 440           break;
 441         case OPTION_TTEXT:
 442           set_section_start (".text", optarg);
 443           break;
 444         case OPTION_TRADITIONAL_FORMAT:
 445           config.traditional_format = true;
 446           break;
 447         case OPTION_UR:
 448           link_info.relocateable = true;
 449           config.build_constructors = true;
 450           config.magic_demand_paged = false;
 451           config.text_read_only = false;
 452           config.dynamic_link = false;
 453           break;
 454         case 'u':
 455           ldlang_add_undef (optarg);
 456           break;
 457         case OPTION_VERBOSE:
 458           ldversion (1);
 459           version_printed = true;
 460           trace_file_tries = true;
 461           break;
 462         case 'v':
 463           ldversion (0);
 464           version_printed = true;
 465           break;
 466         case 'V':
 467           ldversion (1);
 468           version_printed = true;
 469           break;
 470         case OPTION_VERSION:
 471           ldversion (0);
 472           version_printed = true;
 473           break;
 474         case OPTION_WARN_COMMON:
 475           config.warn_common = true;
 476           break;
 477         case OPTION_WARN_CONSTRUCTORS:
 478           config.warn_constructors = true;
 479           break;
 480         case OPTION_WARN_ONCE:
 481           config.warn_once = true;
 482           break;
 483         case OPTION_WHOLE_ARCHIVE:
 484           whole_archive = true;
 485           break;
 486         case 'X':
 487           link_info.discard = discard_l;
 488           break;
 489         case 'x':
 490           link_info.discard = discard_all;
 491           break;
 492         case 'Y':
 493           set_default_dirlist (optarg);
 494           break;
 495         case 'y':
 496           add_ysym (optarg);
 497           break;
 498         case 'z':
 499           /* We accept and ignore this option for Solaris
 500              compatibility.  Actually, on Solaris, optarg is not
 501              ignored.  Someday we should handle it correctly.  FIXME.  */
 502           break;
 503         case OPTION_SPLIT_BY_RELOC:
 504           config.split_by_reloc = atoi (optarg);
 505           break;
 506         case OPTION_SPLIT_BY_FILE:
 507           config.split_by_file = true;
 508           break;
 509         case '(':
 510           if (ingroup)
 511             {
 512               fprintf (stderr,
 513                        "%s: may not nest groups (--help for usage)\n",
 514                        program_name);
 515               xexit (1);
 516             }
 517           lang_enter_group ();
 518           ingroup = 1;
 519           break;
 520         case ')':
 521           if (! ingroup)
 522             {
 523               fprintf (stderr,
 524                        "%s: group ended before it began (--help for usage)\n",
 525                        program_name);
 526               xexit (1);
 527             }
 528           lang_leave_group ();
 529           ingroup = 0;
 530           break;
 531
 532
 533
 534         case OPTION_BASE_FILE:
 535           link_info.base_file = (PTR) fopen (optarg,"w");
 536           if (link_info.base_file == NULL)
 537             {
 538               fprintf (stderr, "%s: Can't open base file %s\n",
 539                        program_name, optarg);
 540               xexit (1);
 541             }
 542           break;
 543
 544           /* PE options */
 545         case OPTION_HEAP:
 546           set_pe_stack_heap (&pe_info.heap_reserve,  &pe_info.heap_commit);
 547           break;
 548         case OPTION_STACK:
 549           set_pe_stack_heap (&pe_info.stack_reserve,  &pe_info.stack_commit);
 550           break;
 551         case OPTION_SUBSYSTEM:
 552           set_pe_subsystem ();
 553           break;
 554         case OPTION_MAJOR_OS_VERSION:
 555           set_pe_value (&pe_info.major_os_version);
 556           break;
 557         case OPTION_MINOR_OS_VERSION:
 558           set_pe_value (&pe_info.minor_os_version);
 559           break;
 560         case OPTION_MAJOR_SUBSYSTEM_VERSION:
 561           set_pe_value (&pe_info.major_subsystem_version);
 562           break;
 563         case OPTION_MINOR_SUBSYSTEM_VERSION:
 564           set_pe_value (&pe_info.minor_subsystem_version);
 565           break;
 566         case OPTION_MAJOR_IMAGE_VERSION:
 567           set_pe_value (&pe_info.major_image_version);
 568           break;
 569         case OPTION_MINOR_IMAGE_VERSION:
 570           set_pe_value (&pe_info.minor_image_version);
 571           break;
 572         case OPTION_FILE_ALIGNMENT:
 573           set_pe_value (&pe_info.file_alignment);
 574           break;
 575         case OPTION_SECTION_ALIGNMENT:
 576           set_pe_value (&pe_info.section_alignment);
 577           break;
 578         case OPTION_DLL:
 579           pe_info.dll.defined = 1;
 580           pe_info.dll.value = 1;
 581           break;
 582         case OPTION_IMAGE_BASE:
 583           set_pe_value (&pe_info.image_base);
 584           break;
 585         }
 586     }
 587
 588   if (ingroup)
 589     lang_leave_group ();
 590 }
 591
 592 /* Add the (colon-separated) elements of DIRLIST_PTR to the
 593    library search path.  */
 594
 595 static void
 596 set_default_dirlist (dirlist_ptr)
 597      char *dirlist_ptr;
 598 {
 599   char *p;
 600
 601   while (1)
 602     {
 603       p = strchr (dirlist_ptr, ':');
 604       if (p != NULL)
 605         *p = 0;
 606       if (*dirlist_ptr)
 607         ldfile_add_library_path (dirlist_ptr, true);
 608       if (p == NULL)
 609         break;
 610       *p = ':';
 611       dirlist_ptr = p + 1;
 612     }
 613 }
 614
 615 static void
 616 set_section_start (sect, valstr)
 617      char *sect, *valstr;
 618 {
 619   char *end;
 620   unsigned long val = strtoul (valstr, &end, 16);
 621   if (*end)
 622     einfo ("%P%F: invalid hex number `%s'\n", valstr);
 623   lang_section_start (sect, exp_intop (val));
 624 }
 625 \f
 626 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
 627    parameters which may be input from the command line */
 628
 629 static void
 630 set_pe_subsystem ()
 631 {
 632   int i;
 633   static struct
 634     {
 635       char *name ;
 636       int value;
 637     }
 638   v[] =
 639     {
 640       {"native", BFD_PE_NATIVE},
 641       {"windows",BFD_PE_WINDOWS},
 642       {"console",BFD_PE_CONSOLE},
 643       {"os2",BFD_PE_OS2},
 644       {"posix", BFD_PE_POSIX},
 645       {0,0}
 646     };
 647
 648   for (i = 0; v[i].name; i++)
 649     {
 650       if (!strcmp (optarg, v[i].name))
 651         {
 652           link_info.pe_info = &pe_info;
 653           pe_info.subsystem.value = v[i].value;
 654           pe_info.subsystem.defined = 1;
 655           return;
 656         }
 657     }
 658   einfo ("%P%F: invalid subsystem type `%s'\n", optarg);
 659 }
 660
 661 static void
 662 set_pe_value (ptr)
 663      bfd_link_pe_info_dval *ptr;
 664 {
 665   char *end;
 666   ptr->value = strtoul (optarg, &end, 16);
 667   if (end == optarg)
 668     {
 669       einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg);
 670     }
 671
 672   optarg = end;
 673   ptr->defined = 1;
 674   link_info.pe_info = &pe_info;
 675 }
 676
 677 static void
 678 set_pe_stack_heap (reserve, commit)
 679      bfd_link_pe_info_dval *reserve;
 680      bfd_link_pe_info_dval *commit;
 681 {
 682   char *begin_commit;
 683   char *end;
 684
 685   set_pe_value (reserve);
 686   if (*optarg == ',')
 687     {
 688       optarg++;
 689       set_pe_value (commit);
 690     }
 691   else if (*optarg)
 692     {
 693       einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg);
 694     }
 695 }
 696
 697