ld/lexsup.c

   1 /* Parse options for the GNU linker.
   2    Copyright (C) 1991, 92, 93, 94 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 /* WINDOWS_NT; declare additional functions */
  51 static void set_subsystem PARAMS ((char *subsystem_type));
  52 static void set_stack_heap PARAMS ((char *valstr, boolean for_heap));
  53
  54 void
  55 parse_args (argc, argv)
  56      int argc;
  57      char **argv;
  58 {
  59   int i;
  60   int ingroup = 0;
  61
  62   /* Starting the short option string with '-' is for programs that
  63      expect options and other ARGV-elements in any order and that care about
  64      the ordering of the two.  We describe each non-option ARGV-element
  65      as if it were the argument of an option with character code 1.  */
  66
  67   const char *shortopts =
  68     "-a:A:B::b:c:de:F::G:giL:l:Mm:NnO:o:R:rSsT:tu:VvXxY:y:z:()";
  69
  70   /* 150 isn't special; it's just an arbitrary non-ASCII char value.  */
  71
  72 #define OPTION_CALL_SHARED              150
  73 #define OPTION_DEFSYM                   (OPTION_CALL_SHARED + 1)
  74 #define OPTION_DYNAMIC_LINKER           (OPTION_DEFSYM + 1)
  75 #define OPTION_EB                       (OPTION_DYNAMIC_LINKER + 1)
  76 #define OPTION_EL                       (OPTION_EB + 1)
  77 #define OPTION_HEAP                     (OPTION_EL + 1)
  78 #define OPTION_EMBEDDED_RELOCS          (OPTION_HEAP + 1)
  79 #define OPTION_EXPORT_DYNAMIC           (OPTION_EMBEDDED_RELOCS + 1)
  80 #define OPTION_HELP                     (OPTION_EXPORT_DYNAMIC + 1)
  81 #define OPTION_IGNORE                   (OPTION_HELP + 1)
  82 #define OPTION_MAP                      (OPTION_IGNORE + 1)
  83 #define OPTION_NO_KEEP_MEMORY           (OPTION_MAP + 1)
  84 #define OPTION_NOINHIBIT_EXEC           (OPTION_NO_KEEP_MEMORY + 1)
  85 #define OPTION_NON_SHARED               (OPTION_NOINHIBIT_EXEC + 1)
  86 #define OPTION_OFORMAT                  (OPTION_NON_SHARED + 1)
  87 #define OPTION_RELAX                    (OPTION_OFORMAT + 1)
  88 #define OPTION_RETAIN_SYMBOLS_FILE      (OPTION_RELAX + 1)
  89 #define OPTION_RPATH                    (OPTION_RETAIN_SYMBOLS_FILE + 1)
  90 #define OPTION_SHARED                   (OPTION_RPATH + 1)
  91 #define OPTION_SONAME                   (OPTION_SHARED + 1)
  92 #define OPTION_SORT_COMMON              (OPTION_SONAME + 1)
  93 #define OPTION_STACK                    (OPTION_SORT_COMMON + 1) /*WINDOWS_NT*/
  94 #define OPTION_STATS                    (OPTION_STACK + 1)
  95 #define OPTION_SUBSYSTEM                (OPTION_STATS + 1) /* WINDOWS_NT */
  96 #define OPTION_SYMBOLIC                 (OPTION_SUBSYSTEM + 1)
  97 #define OPTION_TBSS                     (OPTION_SYMBOLIC + 1)
  98 #define OPTION_TDATA                    (OPTION_TBSS + 1)
  99 #define OPTION_TTEXT                    (OPTION_TDATA + 1)
 100 #define OPTION_TRADITIONAL_FORMAT       (OPTION_TTEXT + 1)
 101 #define OPTION_UR                       (OPTION_TRADITIONAL_FORMAT + 1)
 102 #define OPTION_VERBOSE                  (OPTION_UR + 1)
 103 #define OPTION_VERSION                  (OPTION_VERBOSE + 1)
 104 #define OPTION_WARN_COMMON              (OPTION_VERSION + 1)
 105 #define OPTION_WARN_ONCE                (OPTION_WARN_COMMON + 1)
 106 #define OPTION_SPLIT_BY_RELOC           (OPTION_WARN_ONCE + 1)
 107 #define OPTION_SPLIT_BY_FILE            (OPTION_SPLIT_BY_RELOC + 1)
 108 #define OPTION_WHOLE_ARCHIVE            (OPTION_SPLIT_BY_FILE + 1)
 109 #define OPTION_BASE_FILE                (OPTION_WHOLE_ARCHIVE + 1)
 110   static struct option longopts[] = {
 111     {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
 112     {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
 113     {"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
 114     {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
 115     {"dc", no_argument, NULL, 'd'},
 116     {"defsym", required_argument, NULL, OPTION_DEFSYM},
 117     {"dll-verbose", no_argument, NULL, OPTION_VERSION}, /* Linux.  */
 118     {"dn", no_argument, NULL, OPTION_NON_SHARED},
 119     {"dp", no_argument, NULL, 'd'},
 120     {"dy", no_argument, NULL, OPTION_CALL_SHARED},
 121     {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
 122     {"EB", no_argument, NULL, OPTION_EB},
 123     {"EL", no_argument, NULL, OPTION_EL},
 124     {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
 125     {"end-group", no_argument, NULL, ')'},
 126     {"export-dynamic", no_argument, NULL, OPTION_EXPORT_DYNAMIC},
 127     {"format", required_argument, NULL, 'b'},
 128     {"heap", required_argument, NULL, OPTION_HEAP}, /* WINDOWS_NT */
 129     {"help", no_argument, NULL, OPTION_HELP},
 130     {"Map", required_argument, NULL, OPTION_MAP},
 131     {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
 132     {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 133     {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
 134     {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
 135     {"oformat", required_argument, NULL, OPTION_OFORMAT},
 136     {"Qy", no_argument, NULL, OPTION_IGNORE},
 137     {"qmagic", no_argument, NULL, OPTION_IGNORE}, /* Linux compatibility.  */
 138     {"relax", no_argument, NULL, OPTION_RELAX},
 139     {"retain-symbols-file", required_argument, NULL, OPTION_RETAIN_SYMBOLS_FILE},
 140     {"rpath", required_argument, NULL, OPTION_RPATH},
 141     {"shared", no_argument, NULL, OPTION_SHARED},
 142     {"soname", required_argument, NULL, OPTION_SONAME},
 143     {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
 144     {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
 145     {"stack", required_argument, NULL, OPTION_STACK}, /* WINDOWS_NT */
 146     {"start-group", no_argument, NULL, '('},
 147     {"stats", no_argument, NULL, OPTION_STATS},
 148     {"static", no_argument, NULL, OPTION_NON_SHARED},
 149     {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, /* WINDOWS_NT */
 150     {"Tbss", required_argument, NULL, OPTION_TBSS},
 151     {"Tdata", required_argument, NULL, OPTION_TDATA},
 152     {"Ttext", required_argument, NULL, OPTION_TTEXT},
 153     {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
 154     {"Ur", no_argument, NULL, OPTION_UR},
 155     {"verbose", no_argument, NULL, OPTION_VERBOSE},
 156     {"version", no_argument, NULL, OPTION_VERSION},
 157     {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
 158     {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
 159     {"split-by-reloc", required_argument, NULL, OPTION_SPLIT_BY_RELOC},
 160     {"split-by-file", no_argument, NULL, OPTION_SPLIT_BY_FILE},
 161     {"whole-archive", no_argument, NULL, OPTION_WHOLE_ARCHIVE},
 162     {"base-file", required_argument, NULL, OPTION_BASE_FILE},
 163     {NULL, no_argument, NULL, 0}
 164   };
 165
 166   /* The -G option is ambiguous on different platforms.  Sometimes it
 167      specifies the largest data size to put into the small data
 168      section.  Sometimes it is equivalent to --shared.  Unfortunately,
 169      the first form takes an argument, while the second does not.
 170
 171      We need to permit the --shared form because on some platforms,
 172      such as Solaris, gcc -shared will pass -G to the linker.
 173
 174      To permit either usage, we look through the argument list.  If we
 175      find -G not followed by a number, we change it into --shared.
 176      This will work for most normal cases.  */
 177   for (i = 1; i < argc; i++)
 178     if (strcmp (argv[i], "-G") == 0
 179         && (i + 1 >= argc
 180             || ! isdigit (argv[i + 1][0])))
 181       argv[i] = (char *) "--shared";
 182
 183   while (1)
 184     {
 185       /* getopt_long_only is like getopt_long, but '-' as well as '--' can
 186          indicate a long option.  */
 187       int longind;
 188       int optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
 189
 190       if (optc == -1)
 191         break;
 192
 193       switch (optc)
 194         {
 195         default:
 196           xexit (1);
 197         case 1:                 /* File name.  */
 198           lang_add_input_file (optarg, lang_input_file_is_file_enum,
 199                                (char *) NULL);
 200           break;
 201
 202         case OPTION_IGNORE:
 203           break;
 204         case 'a':
 205           /* For HP/UX compatibility.  Actually -a shared should mean
 206              ``use only shared libraries'' but, then, we don't
 207              currently support shared libraries on HP/UX anyhow.  */
 208           if (strcmp (optarg, "archive") == 0)
 209             config.dynamic_link = false;
 210           else if (strcmp (optarg, "shared") == 0
 211                    || strcmp (optarg, "default") == 0)
 212             config.dynamic_link = true;
 213           else
 214             einfo ("%P%F: unrecognized -a option `%s'\n", optarg);
 215           break;
 216         case 'A':
 217           ldfile_add_arch (optarg);
 218           break;
 219         case 'b':
 220           lang_add_target (optarg);
 221           break;
 222         case 'c':
 223           ldfile_open_command_file (optarg);
 224           parser_input = input_mri_script;
 225           yyparse ();
 226           break;
 227         case OPTION_CALL_SHARED:
 228           config.dynamic_link = true;
 229           break;
 230         case OPTION_NON_SHARED:
 231           config.dynamic_link = false;
 232           break;
 233         case 'd':
 234           command_line.force_common_definition = true;
 235           break;
 236         case OPTION_DEFSYM:
 237           lex_redirect (optarg);
 238           parser_input = input_defsym;
 239           yyparse ();
 240           break;
 241         case OPTION_DYNAMIC_LINKER:
 242           command_line.interpreter = optarg;
 243           break;
 244         case OPTION_EB:
 245           command_line.endian = ENDIAN_BIG;
 246           break;
 247         case OPTION_EL:
 248           command_line.endian = ENDIAN_LITTLE;
 249           break;
 250         case OPTION_EMBEDDED_RELOCS:
 251           command_line.embedded_relocs = true;
 252           break;
 253         case OPTION_EXPORT_DYNAMIC:
 254           command_line.export_dynamic = true;
 255           break;
 256         case 'e':
 257           lang_add_entry (optarg, 1);
 258           break;
 259         case 'F':
 260           /* Ignore.  */
 261           break;
 262         case 'G':
 263           {
 264             char *end;
 265             g_switch_value = strtoul (optarg, &end, 0);
 266             if (*end)
 267               einfo ("%P%F: invalid number `%s'\n", optarg);
 268           }
 269           break;
 270         case 'g':
 271           /* Ignore.  */
 272           break;
 273         case OPTION_HEAP:  /* WINDOWS_NT */
 274           link_info.stack_heap_parameters.heap_defined = true;
 275           set_stack_heap (optarg, true);
 276           break;
 277         case OPTION_HELP:
 278           help ();
 279           xexit (0);
 280           break;
 281         case 'L':
 282           ldfile_add_library_path (optarg, true);
 283           break;
 284         case 'l':
 285           lang_add_input_file (optarg, lang_input_file_is_l_enum,
 286                                (char *) NULL);
 287           break;
 288         case 'M':
 289           config.map_filename = "-";
 290           break;
 291         case 'm':
 292           /* Ignore.  Was handled in a pre-parse.   */
 293           break;
 294         case OPTION_MAP:
 295           config.map_filename = optarg;
 296           break;
 297         case 'N':
 298           config.text_read_only = false;
 299           config.magic_demand_paged = false;
 300           break;
 301         case 'n':
 302           config.magic_demand_paged = false;
 303           break;
 304         case OPTION_NO_KEEP_MEMORY:
 305           link_info.keep_memory = false;
 306           break;
 307         case OPTION_NOINHIBIT_EXEC:
 308           force_make_executable = true;
 309           break;
 310         case 'O':
 311           /* FIXME "-O<non-digits> <value>" used to set the address of
 312              section <non-digits>.  Was this for compatibility with
 313              something, or can we create a new option to do that
 314              (with a syntax similar to -defsym)?
 315              getopt can't handle two args to an option without kludges.  */
 316           set_default_dirlist (optarg);
 317           break;
 318         case 'o':
 319           lang_add_output (optarg, 0);
 320           break;
 321         case OPTION_OFORMAT:
 322           lang_add_output_format (optarg, (char *) NULL, (char *) NULL, 0);
 323           break;
 324         case 'i':
 325         case 'r':
 326           link_info.relocateable = true;
 327           config.build_constructors = false;
 328           config.magic_demand_paged = false;
 329           config.text_read_only = false;
 330           config.dynamic_link = false;
 331           break;
 332         case 'R':
 333           /* The GNU linker traditionally uses -R to mean to include
 334              only the symbols from a file.  The Solaris linker uses -R
 335              to set the path used by the runtime linker to find
 336              libraries.  This is the GNU linker -rpath argument.  We
 337              try to support both simultaneously by checking the file
 338              named.  If it is a directory, rather than a regular file,
 339              we assume -rpath was meant.  */
 340           {
 341             struct stat s;
 342
 343             if (stat (optarg, &s) >= 0
 344                 && ! S_ISDIR (s.st_mode))
 345               {
 346                 lang_add_input_file (optarg,
 347                                      lang_input_file_is_symbols_only_enum,
 348                                      (char *) NULL);
 349                 break;
 350               }
 351           }
 352           /* Fall through.  */
 353         case OPTION_RPATH:
 354           if (command_line.rpath == NULL)
 355             command_line.rpath = buystring (optarg);
 356           else
 357             {
 358               char *buf;
 359
 360               buf = xmalloc (strlen (command_line.rpath)
 361                              + strlen (optarg)
 362                              + 2);
 363               sprintf (buf, "%s:%s", command_line.rpath, optarg);
 364               free (command_line.rpath);
 365               command_line.rpath = buf;
 366             }
 367           break;
 368         case OPTION_RELAX:
 369           command_line.relax = true;
 370           break;
 371         case OPTION_RETAIN_SYMBOLS_FILE:
 372           add_keepsyms_file (optarg);
 373           break;
 374         case 'S':
 375           link_info.strip = strip_debugger;
 376           break;
 377         case 's':
 378           link_info.strip = strip_all;
 379           break;
 380         case OPTION_SHARED:
 381           link_info.shared = true;
 382           break;
 383         case OPTION_SONAME:
 384           command_line.soname = optarg;
 385           break;
 386         case OPTION_SORT_COMMON:
 387           config.sort_common = true;
 388           break;
 389         case OPTION_STACK:  /* WINDOWS_NT */
 390           link_info.stack_heap_parameters.stack_defined = true;
 391           set_stack_heap (optarg, false);
 392           break;
 393         case OPTION_STATS:
 394           config.stats = true;
 395           break;
 396         case OPTION_SUBSYSTEM:  /* WINDOWS_NT */
 397           set_subsystem (optarg);
 398           break;
 399         case OPTION_SYMBOLIC:
 400           link_info.symbolic = true;
 401           break;
 402         case 't':
 403           trace_files = true;
 404           break;
 405         case 'T':
 406           ldfile_open_command_file (optarg);
 407           parser_input = input_script;
 408           yyparse ();
 409           break;
 410         case OPTION_TBSS:
 411           set_section_start (".bss", optarg);
 412           break;
 413         case OPTION_TDATA:
 414           set_section_start (".data", optarg);
 415           break;
 416         case OPTION_TTEXT:
 417           set_section_start (".text", optarg);
 418           break;
 419         case OPTION_TRADITIONAL_FORMAT:
 420           config.traditional_format = true;
 421           break;
 422         case OPTION_UR:
 423           link_info.relocateable = true;
 424           config.build_constructors = true;
 425           config.magic_demand_paged = false;
 426           config.text_read_only = false;
 427           config.dynamic_link = false;
 428           break;
 429         case 'u':
 430           ldlang_add_undef (optarg);
 431           break;
 432         case OPTION_VERBOSE:
 433           ldversion (1);
 434           version_printed = true;
 435           trace_file_tries = true;
 436           break;
 437         case 'v':
 438           ldversion (0);
 439           version_printed = true;
 440           break;
 441         case 'V':
 442           ldversion (1);
 443           version_printed = true;
 444           break;
 445         case OPTION_VERSION:
 446           ldversion (0);
 447           version_printed = true;
 448           break;
 449         case OPTION_WARN_COMMON:
 450           config.warn_common = true;
 451           break;
 452         case OPTION_WARN_ONCE:
 453           config.warn_once = true;
 454           break;
 455         case OPTION_WHOLE_ARCHIVE:
 456           whole_archive = true;
 457           break;
 458         case OPTION_BASE_FILE:
 459           link_info.base_file = (PTR) fopen (optarg,"w");
 460           if (link_info.base_file == NULL)
 461             {
 462               fprintf (stderr, "%s: Can't open base file %s\n",
 463                        program_name, optarg);
 464               xexit (1);
 465             }
 466           break;
 467         case 'X':
 468           link_info.discard = discard_l;
 469           break;
 470         case 'x':
 471           link_info.discard = discard_all;
 472           break;
 473         case 'Y':
 474           set_default_dirlist (optarg);
 475           break;
 476         case 'y':
 477           add_ysym (optarg);
 478           break;
 479         case 'z':
 480           /* We accept and ignore this option for Solaris
 481              compatibility.  Actually, on Solaris, optarg is not
 482              ignored.  Someday we should handle it correctly.  FIXME.  */
 483           break;
 484         case OPTION_SPLIT_BY_RELOC:
 485           config.split_by_reloc = atoi (optarg);
 486           break;
 487         case OPTION_SPLIT_BY_FILE:
 488           config.split_by_file = true;
 489           break;
 490         case '(':
 491           if (ingroup)
 492             {
 493               fprintf (stderr,
 494                        "%s: may not nest groups (--help for usage)\n",
 495                        program_name);
 496               xexit (1);
 497             }
 498           lang_enter_group ();
 499           ingroup = 1;
 500           break;
 501         case ')':
 502           if (! ingroup)
 503             {
 504               fprintf (stderr,
 505                        "%s: group ended before it began (--help for usage)\n",
 506                        program_name);
 507               xexit (1);
 508             }
 509           lang_leave_group ();
 510           ingroup = 0;
 511           break;
 512         }
 513     }
 514
 515   if (ingroup)
 516     lang_leave_group ();
 517 }
 518
 519 /* Add the (colon-separated) elements of DIRLIST_PTR to the
 520    library search path.  */
 521
 522 static void
 523 set_default_dirlist (dirlist_ptr)
 524      char *dirlist_ptr;
 525 {
 526   char *p;
 527
 528   while (1)
 529     {
 530       p = strchr (dirlist_ptr, ':');
 531       if (p != NULL)
 532         *p = 0;
 533       if (*dirlist_ptr)
 534         ldfile_add_library_path (dirlist_ptr, true);
 535       if (p == NULL)
 536         break;
 537       *p = ':';
 538       dirlist_ptr = p + 1;
 539     }
 540 }
 541
 542 static void
 543 set_section_start (sect, valstr)
 544      char *sect, *valstr;
 545 {
 546   char *end;
 547   unsigned long val = strtoul (valstr, &end, 16);
 548   if (*end)
 549     einfo ("%P%F: invalid hex number `%s'\n", valstr);
 550   lang_section_start (sect, exp_intop (val));
 551 }
 552
 553 /* WINDOWS_NT; added routines to get the subsystem type, heap and/or stack
 554    parameters which may be input from the command line */
 555 static void
 556 set_subsystem (subsystem_type)
 557   char *subsystem_type;
 558 {
 559   if (strcmp (subsystem_type, "native") == 0)
 560     {
 561       link_info.subsystem = native;
 562     }
 563   else if (strcmp (subsystem_type, "windows") == 0)
 564     {
 565       link_info.subsystem = windows;
 566     }
 567   else if (strcmp (subsystem_type, "console") == 0)
 568     {
 569       link_info.subsystem = console;
 570     }
 571   else if (strcmp (subsystem_type, "os2") == 0)
 572     {
 573       link_info.subsystem = os2;
 574     }
 575   else if (strcmp (subsystem_type, "posix") == 0)
 576     {
 577       link_info.subsystem = posix;
 578     }
 579   else
 580     einfo ("%P%F: invalid subsystem type `%s'\n", subsystem_type);
 581
 582 }
 583
 584 static void
 585 set_stack_heap (valstr, for_heap)
 586   char *valstr;
 587   boolean for_heap;
 588 {
 589   char *begin_commit, *end;
 590   bfd_vma reserve = 0;
 591   bfd_vma commit  = 0;
 592
 593   /* There may be two values passed in to the -stack or -heap switches like
 594      this:
 595        -stack 0x10000,0x100
 596      where the first parameter is the stack (or heap) reserve and the second
 597      is commit.  The second parameter is optional. */
 598
 599   /* get the reserve value */
 600   reserve = strtoul (valstr, &begin_commit, 16);
 601
 602   if (strcmp (valstr, begin_commit) == 0)
 603     /* the reserve value couldn't be read */
 604     einfo ("%P%F: invalid hex number for reserve[,commit] '%s'\n", valstr);
 605   else if (strcmp (begin_commit, "\0") != 0)  /* check for a commit value */
 606     {
 607      begin_commit += 1;  /* increment begin_commit to point past ',' */
 608      commit = strtoul (begin_commit, &end, 16);
 609      if (strcmp (end, begin_commit) == 0)
 610        einfo ("%P%F: invalid hex number for commit '%s'\n", begin_commit);
 611     }
 612
 613   if (for_heap)
 614    {
 615     link_info.stack_heap_parameters.heap_reserve = reserve;
 616     link_info.stack_heap_parameters.heap_commit  = commit;
 617    }
 618   else
 619    {
 620     link_info.stack_heap_parameters.stack_reserve = reserve;
 621     link_info.stack_heap_parameters.stack_commit  = commit;
 622    }
 623
 624 #if DUMP_INFO
 625   printf ("reserve = %8x  commit = %8x\n", reserve, commit);
 626 #endif
 627 }