makedef.pl

   1 #./perl -w
   2 #
   3 # Create the export list for perl.
   4 #
   5 # Needed by WIN32 and OS/2 for creating perl.dll,
   6 # and by AIX for creating libperl.a when -Dusershrplib is in effect,
   7 # and by MacOS Classic.
   8 #
   9 # reads global.sym, pp.sym, perlvars.h, intrpvar.h, thrdvar.h, config.h
  10 # On OS/2 reads miniperl.map and the previous version of perl5.def as well
  11
  12 BEGIN { unshift @INC, "lib" }
  13 use strict;
  14
  15 use vars qw($PLATFORM $CCTYPE $FILETYPE $CONFIG_ARGS $ARCHNAME $PATCHLEVEL);
  16
  17 my (%define, %ordinal);
  18
  19 while (@ARGV) {
  20     my $flag = shift;
  21     if ($flag =~ s/^CC_FLAGS=/ /) {
  22         for my $fflag ($flag =~ /(?:^|\s)-D(\S+)/g) {
  23             $fflag     .= '=1' unless $fflag =~ /^(\w+)=/;
  24             $define{$1} = $2   if $fflag =~ /^(\w+)=(.+)$/;
  25         }
  26         next;
  27     }
  28     $define{$1} = 1 if ($flag =~ /^-D(\w+)$/);
  29     $define{$1} = $2 if ($flag =~ /^-D(\w+)=(.+)$/);
  30     $CCTYPE   = $1 if ($flag =~ /^CCTYPE=(\w+)$/);
  31     $PLATFORM = $1 if ($flag =~ /^PLATFORM=(\w+)$/);
  32     if ($PLATFORM eq 'netware') {
  33         $FILETYPE = $1 if ($flag =~ /^FILETYPE=(\w+)$/);
  34     }
  35 }
  36
  37 my @PLATFORM = qw(aix win32 wince os2 MacOS netware);
  38 my %PLATFORM;
  39 @PLATFORM{@PLATFORM} = ();
  40
  41 defined $PLATFORM || die "PLATFORM undefined, must be one of: @PLATFORM\n";
  42 exists $PLATFORM{$PLATFORM} || die "PLATFORM must be one of: @PLATFORM\n";
  43
  44 if ($PLATFORM eq 'win32' or $PLATFORM eq 'wince' or $PLATFORM eq "aix") {
  45         # Add the compile-time options that miniperl was built with to %define.
  46         # On Win32 these are not the same options as perl itself will be built
  47         # with since miniperl is built with a canned config (one of the win32/
  48         # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
  49         # but they do include some #define's that are hard-coded in various
  50         # source files and header files and don't include any BUILDOPT's that
  51         # the user might have chosen to disable because the canned configs are
  52         # minimal configs that don't include any of those options.
  53         my $opts = ($PLATFORM eq 'wince' ? '-MCross' : ''); # for wince need Cross.pm to get Config.pm
  54         my $config = `$^X $opts -Ilib -V`;
  55         my($options) = $config =~ /^  Compile-time options: (.*?)\n^  \S/ms;
  56         $options =~ s/\s+/ /g;
  57         print STDERR "Options: ($options)\n";
  58         foreach (split /\s+/, $options) {
  59                 $define{$_} = 1;
  60         }
  61 }
  62
  63 my %exportperlmalloc =
  64     (
  65        Perl_malloc              =>      "malloc",
  66        Perl_mfree               =>      "free",
  67        Perl_realloc             =>      "realloc",
  68        Perl_calloc              =>      "calloc",
  69     );
  70
  71 my $exportperlmalloc = $PLATFORM eq 'os2';
  72
  73 my $config_sh   = "config.sh";
  74 my $config_h    = "config.h";
  75 my $thrdvar_h   = "thrdvar.h";
  76 my $intrpvar_h  = "intrpvar.h";
  77 my $perlvars_h  = "perlvars.h";
  78 my $global_sym  = "global.sym";
  79 my $pp_sym      = "pp.sym";
  80 my $globvar_sym = "globvar.sym";
  81 my $perlio_sym  = "perlio.sym";
  82 my $static_ext = "";
  83
  84 if ($PLATFORM eq 'aix') {
  85     # Nothing for now.
  86 }
  87 elsif ($PLATFORM =~ /^win(?:32|ce)$/ || $PLATFORM eq 'netware') {
  88     $CCTYPE = "MSVC" unless defined $CCTYPE;
  89     foreach ($thrdvar_h, $intrpvar_h, $perlvars_h, $global_sym,
  90              $pp_sym, $globvar_sym, $perlio_sym) {
  91         s!^!..\\!;
  92     }
  93 }
  94 elsif ($PLATFORM eq 'MacOS') {
  95     foreach ($thrdvar_h, $intrpvar_h, $perlvars_h, $global_sym,
  96              $pp_sym, $globvar_sym, $perlio_sym) {
  97         s!^!::!;
  98     }
  99 }
 100
 101 unless ($PLATFORM eq 'win32' || $PLATFORM eq 'wince' || $PLATFORM eq 'MacOS' || $PLATFORM eq 'netware') {
 102     open(CFG,$config_sh) || die "Cannot open $config_sh: $!\n";
 103     while (<CFG>) {
 104         if (/^(?:ccflags|optimize)='(.+)'$/) {
 105             $_ = $1;
 106             $define{$1} = 1 while /-D(\w+)/g;
 107         }
 108         if (/^(d_(?:mmap|sigaction))='(.+)'$/) {
 109             $define{$1} = $2;
 110         }
 111         if ($PLATFORM eq 'os2') {
 112             $CONFIG_ARGS = $1 if /^config_args='(.+)'$/;
 113             $ARCHNAME =    $1 if /^archname='(.+)'$/;
 114             $PATCHLEVEL =  $1 if /^perl_patchlevel='(.+)'$/;
 115         }
 116     }
 117     close(CFG);
 118 }
 119 if ($PLATFORM eq 'win32' || $PLATFORM eq 'wince') {
 120     open(CFG,"<..\\$config_sh") || die "Cannot open ..\\$config_sh: $!\n";
 121     if ((join '', <CFG>) =~ /^static_ext='(.*)'$/m) {
 122         $static_ext = $1;
 123     }
 124     close(CFG);
 125 }
 126
 127 open(CFG,$config_h) || die "Cannot open $config_h: $!\n";
 128 while (<CFG>) {
 129     $define{$1} = 1 if /^\s*#\s*define\s+(MYMALLOC)\b/;
 130     $define{$1} = 1 if /^\s*#\s*define\s+(MULTIPLICITY)\b/;
 131     $define{$1} = 1 if /^\s*#\s*define\s+(PERL_\w+)\b/;
 132     $define{$1} = 1 if /^\s*#\s*define\s+(USE_\w+)\b/;
 133 }
 134 close(CFG);
 135
 136 # perl.h logic duplication begins
 137
 138 if ($define{PERL_IMPLICIT_SYS}) {
 139     $define{PL_OP_SLAB_ALLOC} = 1;
 140 }
 141
 142 if ($define{USE_ITHREADS}) {
 143     if (!$define{MULTIPLICITY}) {
 144         $define{MULTIPLICITY} = 1;
 145     }
 146 }
 147
 148 $define{PERL_IMPLICIT_CONTEXT} ||=
 149     $define{USE_ITHREADS} ||
 150     $define{MULTIPLICITY} ;
 151
 152 if ($define{USE_ITHREADS} && $PLATFORM ne 'win32' && $^O ne 'darwin') {
 153     $define{USE_REENTRANT_API} = 1;
 154 }
 155
 156 # perl.h logic duplication ends
 157
 158 my $sym_ord = 0;
 159
 160 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n";
 161
 162 if ($PLATFORM =~ /^win(?:32|ce)$/) {
 163     (my $dll = ($define{PERL_DLL} || "perl59")) =~ s/\.dll$//i;
 164     print "LIBRARY $dll\n";
 165     print "DESCRIPTION 'Perl interpreter'\n";
 166     print "EXPORTS\n";
 167     if ($define{PERL_IMPLICIT_SYS}) {
 168         output_symbol("perl_get_host_info");
 169         output_symbol("perl_alloc_override");
 170     }
 171     if ($define{USE_ITHREADS} and $define{PERL_IMPLICIT_SYS}) {
 172         output_symbol("perl_clone_host");
 173     }
 174 }
 175 elsif ($PLATFORM eq 'os2') {
 176     if (open my $fh, '<', 'perl5.def') {
 177       while (<$fh>) {
 178         last if /^\s*EXPORTS\b/;
 179       }
 180       while (<$fh>) {
 181         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 182         # This allows skipping ordinals which were used in older versions
 183         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 184       }
 185       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 186     }
 187     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
 188     $v .= '-thread' if $ARCHNAME =~ /-thread/;
 189     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
 190     $v .= "\@$PATCHLEVEL" if $PATCHLEVEL;
 191     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $CONFIG_ARGS'";
 192     $d = substr($d, 0, 249) . "...'" if length $d > 253;
 193     print <<"---EOP---";
 194 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
 195 $d
 196 STACKSIZE 32768
 197 CODE LOADONCALL
 198 DATA LOADONCALL NONSHARED MULTIPLE
 199 EXPORTS
 200 ---EOP---
 201 }
 202 elsif ($PLATFORM eq 'aix') {
 203     my $OSVER = `uname -v`;
 204     chop $OSVER;
 205     my $OSREL = `uname -r`;
 206     chop $OSREL;
 207     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
 208         print "#! ..\n";
 209     } else {
 210         print "#!\n";
 211     }
 212 }
 213 elsif ($PLATFORM eq 'netware') {
 214         if ($FILETYPE eq 'def') {
 215         print "LIBRARY perl59\n";
 216         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
 217         print "EXPORTS\n";
 218         }
 219         if ($define{PERL_IMPLICIT_SYS}) {
 220             output_symbol("perl_get_host_info");
 221             output_symbol("perl_alloc_override");
 222             output_symbol("perl_clone_host");
 223         }
 224 }
 225
 226 my %skip;
 227 my %export;
 228
 229 sub skip_symbols {
 230     my $list = shift;
 231     foreach my $symbol (@$list) {
 232         $skip{$symbol} = 1;
 233     }
 234 }
 235
 236 sub emit_symbols {
 237     my $list = shift;
 238     foreach my $symbol (@$list) {
 239         my $skipsym = $symbol;
 240         # XXX hack
 241         if ($define{MULTIPLICITY}) {
 242             $skipsym =~ s/^Perl_[GIT](\w+)_ptr$/PL_$1/;
 243         }
 244         emit_symbol($symbol) unless exists $skip{$skipsym};
 245     }
 246 }
 247
 248 if ($PLATFORM eq 'win32') {
 249     skip_symbols [qw(
 250                      PL_statusvalue_vms
 251                      PL_archpat_auto
 252                      PL_cryptseen
 253                      PL_DBcv
 254                      PL_generation
 255                      PL_lastgotoprobe
 256                      PL_linestart
 257                      PL_modcount
 258                      PL_pending_ident
 259                      PL_sublex_info
 260                      PL_timesbuf
 261                      main
 262                      Perl_ErrorNo
 263                      Perl_GetVars
 264                      Perl_do_exec3
 265                      Perl_do_ipcctl
 266                      Perl_do_ipcget
 267                      Perl_do_msgrcv
 268                      Perl_do_msgsnd
 269                      Perl_do_semop
 270                      Perl_do_shmio
 271                      Perl_dump_fds
 272                      Perl_init_thread_intern
 273                      Perl_my_bzero
 274                      Perl_my_bcopy
 275                      Perl_my_htonl
 276                      Perl_my_ntohl
 277                      Perl_my_swap
 278                      Perl_my_chsize
 279                      Perl_same_dirent
 280                      Perl_setenv_getix
 281                      Perl_unlnk
 282                      Perl_watch
 283                      Perl_safexcalloc
 284                      Perl_safexmalloc
 285                      Perl_safexfree
 286                      Perl_safexrealloc
 287                      Perl_my_memcmp
 288                      Perl_my_memset
 289                      PL_cshlen
 290                      PL_cshname
 291                      PL_opsave
 292                      Perl_do_exec
 293                      Perl_getenv_len
 294                      Perl_my_pclose
 295                      Perl_my_popen
 296                      Perl_my_sprintf
 297                      )];
 298 }
 299 else {
 300     skip_symbols [qw(
 301                      Perl_do_spawn
 302                      Perl_do_spawn_nowait
 303                      Perl_do_aspawn
 304                      )];
 305 }
 306 if ($PLATFORM eq 'wince') {
 307     skip_symbols [qw(
 308                      PL_statusvalue_vms
 309                      PL_archpat_auto
 310                      PL_cryptseen
 311                      PL_DBcv
 312                      PL_generation
 313                      PL_lastgotoprobe
 314                      PL_linestart
 315                      PL_modcount
 316                      PL_pending_ident
 317                      PL_sublex_info
 318                      PL_timesbuf
 319                      PL_collation_ix
 320                      PL_collation_name
 321                      PL_collation_standard
 322                      PL_collxfrm_base
 323                      PL_collxfrm_mult
 324                      PL_numeric_compat1
 325                      PL_numeric_local
 326                      PL_numeric_name
 327                      PL_numeric_radix_sv
 328                      PL_numeric_standard
 329                      PL_vtbl_collxfrm
 330                      Perl_sv_collxfrm
 331                      setgid
 332                      setuid
 333                      win32_free_childdir
 334                      win32_free_childenv
 335                      win32_get_childdir
 336                      win32_get_childenv
 337                      win32_spawnvp
 338                      main
 339                      Perl_ErrorNo
 340                      Perl_GetVars
 341                      Perl_do_exec3
 342                      Perl_do_ipcctl
 343                      Perl_do_ipcget
 344                      Perl_do_msgrcv
 345                      Perl_do_msgsnd
 346                      Perl_do_semop
 347                      Perl_do_shmio
 348                      Perl_dump_fds
 349                      Perl_init_thread_intern
 350                      Perl_my_bzero
 351                      Perl_my_bcopy
 352                      Perl_my_htonl
 353                      Perl_my_ntohl
 354                      Perl_my_swap
 355                      Perl_my_chsize
 356                      Perl_same_dirent
 357                      Perl_setenv_getix
 358                      Perl_unlnk
 359                      Perl_watch
 360                      Perl_safexcalloc
 361                      Perl_safexmalloc
 362                      Perl_safexfree
 363                      Perl_safexrealloc
 364                      Perl_my_memcmp
 365                      Perl_my_memset
 366                      PL_cshlen
 367                      PL_cshname
 368                      PL_opsave
 369                      Perl_do_exec
 370                      Perl_getenv_len
 371                      Perl_my_pclose
 372                      Perl_my_popen
 373                      Perl_my_sprintf
 374                      )];
 375 }
 376 elsif ($PLATFORM eq 'aix') {
 377     skip_symbols([qw(
 378                      Perl_dump_fds
 379                      Perl_ErrorNo
 380                      Perl_GetVars
 381                      Perl_my_bcopy
 382                      Perl_my_bzero
 383                      Perl_my_chsize
 384                      Perl_my_htonl
 385                      Perl_my_memcmp
 386                      Perl_my_memset
 387                      Perl_my_ntohl
 388                      Perl_my_swap
 389                      Perl_safexcalloc
 390                      Perl_safexfree
 391                      Perl_safexmalloc
 392                      Perl_safexrealloc
 393                      Perl_same_dirent
 394                      Perl_unlnk
 395                      Perl_sys_intern_clear
 396                      Perl_sys_intern_dup
 397                      Perl_sys_intern_init
 398                      Perl_my_sprintf
 399                      PL_cryptseen
 400                      PL_opsave
 401                      PL_statusvalue_vms
 402                      PL_sys_intern
 403                      )]);
 404 }
 405 elsif ($PLATFORM eq 'os2') {
 406     emit_symbols([qw(
 407                     ctermid
 408                     get_sysinfo
 409                     Perl_OS2_init
 410                     Perl_OS2_init3
 411                     Perl_OS2_term
 412                     OS2_Perl_data
 413                     dlopen
 414                     dlsym
 415                     dlerror
 416                     dlclose
 417                     dup2
 418                     dup
 419                     my_tmpfile
 420                     my_tmpnam
 421                     my_flock
 422                     my_rmdir
 423                     my_mkdir
 424                     my_getpwuid
 425                     my_getpwnam
 426                     my_getpwent
 427                     my_setpwent
 428                     my_endpwent
 429                     fork_with_resources
 430                     croak_with_os2error
 431                     setgrent
 432                     endgrent
 433                     getgrent
 434                     malloc_mutex
 435                     threads_mutex
 436                     nthreads
 437                     nthreads_cond
 438                     os2_cond_wait
 439                     os2_stat
 440                     os2_execname
 441                     async_mssleep
 442                     msCounter
 443                     InfoTable
 444                     pthread_join
 445                     pthread_create
 446                     pthread_detach
 447                     XS_Cwd_change_drive
 448                     XS_Cwd_current_drive
 449                     XS_Cwd_extLibpath
 450                     XS_Cwd_extLibpath_set
 451                     XS_Cwd_sys_abspath
 452                     XS_Cwd_sys_chdir
 453                     XS_Cwd_sys_cwd
 454                     XS_Cwd_sys_is_absolute
 455                     XS_Cwd_sys_is_relative
 456                     XS_Cwd_sys_is_rooted
 457                     XS_DynaLoader_mod2fname
 458                     XS_File__Copy_syscopy
 459                     Perl_Register_MQ
 460                     Perl_Deregister_MQ
 461                     Perl_Serve_Messages
 462                     Perl_Process_Messages
 463                     init_PMWIN_entries
 464                     PMWIN_entries
 465                     Perl_hab_GET
 466                     loadByOrdinal
 467                     pExtFCN
 468                     os2error
 469                     ResetWinError
 470                     CroakWinError
 471                     PL_do_undump
 472                     )]);
 473     emit_symbols([qw(os2_cond_wait
 474                      pthread_join
 475                      pthread_create
 476                      pthread_detach
 477                     )])
 478       if $define{'USE_5005THREADS'} or $define{'USE_ITHREADS'};
 479 }
 480 elsif ($PLATFORM eq 'MacOS') {
 481     skip_symbols [qw(
 482                     Perl_GetVars
 483                     PL_cryptseen
 484                     PL_cshlen
 485                     PL_cshname
 486                     PL_statusvalue_vms
 487                     PL_sys_intern
 488                     PL_opsave
 489                     PL_timesbuf
 490                     Perl_dump_fds
 491                     Perl_my_bcopy
 492                     Perl_my_bzero
 493                     Perl_my_chsize
 494                     Perl_my_htonl
 495                     Perl_my_memcmp
 496                     Perl_my_memset
 497                     Perl_my_ntohl
 498                     Perl_my_swap
 499                     Perl_safexcalloc
 500                     Perl_safexfree
 501                     Perl_safexmalloc
 502                     Perl_safexrealloc
 503                     Perl_unlnk
 504                     Perl_sys_intern_clear
 505                     Perl_sys_intern_init
 506                     )];
 507 }
 508 elsif ($PLATFORM eq 'netware') {
 509         skip_symbols [qw(
 510                         PL_statusvalue_vms
 511                         PL_archpat_auto
 512                         PL_cryptseen
 513                         PL_DBcv
 514                         PL_generation
 515                         PL_lastgotoprobe
 516                         PL_linestart
 517                         PL_modcount
 518                         PL_pending_ident
 519                         PL_sublex_info
 520                         PL_timesbuf
 521                         main
 522                         Perl_ErrorNo
 523                         Perl_GetVars
 524                         Perl_do_exec3
 525                         Perl_do_ipcctl
 526                         Perl_do_ipcget
 527                         Perl_do_msgrcv
 528                         Perl_do_msgsnd
 529                         Perl_do_semop
 530                         Perl_do_shmio
 531                         Perl_dump_fds
 532                         Perl_init_thread_intern
 533                         Perl_my_bzero
 534                         Perl_my_htonl
 535                         Perl_my_ntohl
 536                         Perl_my_swap
 537                         Perl_my_chsize
 538                         Perl_same_dirent
 539                         Perl_setenv_getix
 540                         Perl_unlnk
 541                         Perl_watch
 542                         Perl_safexcalloc
 543                         Perl_safexmalloc
 544                         Perl_safexfree
 545                         Perl_safexrealloc
 546                         Perl_my_memcmp
 547                         Perl_my_memset
 548                         PL_cshlen
 549                         PL_cshname
 550                         PL_opsave
 551                         Perl_do_exec
 552                         Perl_getenv_len
 553                         Perl_my_pclose
 554                         Perl_my_popen
 555                         Perl_sys_intern_init
 556                         Perl_sys_intern_dup
 557                         Perl_sys_intern_clear
 558                         Perl_my_bcopy
 559                         Perl_PerlIO_write
 560                         Perl_PerlIO_unread
 561                         Perl_PerlIO_tell
 562                         Perl_PerlIO_stdout
 563                         Perl_PerlIO_stdin
 564                         Perl_PerlIO_stderr
 565                         Perl_PerlIO_setlinebuf
 566                         Perl_PerlIO_set_ptrcnt
 567                         Perl_PerlIO_set_cnt
 568                         Perl_PerlIO_seek
 569                         Perl_PerlIO_read
 570                         Perl_PerlIO_get_ptr
 571                         Perl_PerlIO_get_cnt
 572                         Perl_PerlIO_get_bufsiz
 573                         Perl_PerlIO_get_base
 574                         Perl_PerlIO_flush
 575                         Perl_PerlIO_fill
 576                         Perl_PerlIO_fileno
 577                         Perl_PerlIO_error
 578                         Perl_PerlIO_eof
 579                         Perl_PerlIO_close
 580                         Perl_PerlIO_clearerr
 581                         PerlIO_perlio
 582                         )];
 583 }
 584
 585 unless ($define{'DEBUGGING'}) {
 586     skip_symbols [qw(
 587                     Perl_deb_growlevel
 588                     Perl_debop
 589                     Perl_debprofdump
 590                     Perl_debstack
 591                     Perl_debstackptrs
 592                     Perl_pad_sv
 593                     Perl_sv_peek
 594                     Perl_hv_assert
 595                     PL_block_type
 596                     PL_watchaddr
 597                     PL_watchok
 598                     PL_watch_pvx
 599                     )];
 600 }
 601
 602 if ($define{'PERL_IMPLICIT_CONTEXT'}) {
 603     skip_symbols [qw(
 604                     PL_sig_sv
 605                     )];
 606 }
 607
 608 if ($define{'PERL_IMPLICIT_SYS'}) {
 609     skip_symbols [qw(
 610                     Perl_getenv_len
 611                     Perl_my_popen
 612                     Perl_my_pclose
 613                     )];
 614 }
 615 else {
 616     skip_symbols [qw(
 617                     PL_Mem
 618                     PL_MemShared
 619                     PL_MemParse
 620                     PL_Env
 621                     PL_StdIO
 622                     PL_LIO
 623                     PL_Dir
 624                     PL_Sock
 625                     PL_Proc
 626                     )];
 627 }
 628
 629 unless ($define{'PERL_OLD_COPY_ON_WRITE'}) {
 630     skip_symbols [qw(
 631                     Perl_sv_setsv_cow
 632                   )];
 633 }
 634
 635 unless ($define{'USE_REENTRANT_API'}) {
 636     skip_symbols [qw(
 637                     PL_reentrant_buffer
 638                     )];
 639 }
 640
 641 if ($define{'MYMALLOC'}) {
 642     emit_symbols [qw(
 643                     Perl_dump_mstats
 644                     Perl_get_mstats
 645                     Perl_strdup
 646                     Perl_putenv
 647                     MallocCfg_ptr
 648                     MallocCfgP_ptr
 649                     )];
 650     if ($define{'USE_ITHREADS'}) {
 651         emit_symbols [qw(
 652                         PL_malloc_mutex
 653                         )];
 654     }
 655     else {
 656         skip_symbols [qw(
 657                         PL_malloc_mutex
 658                         )];
 659     }
 660 }
 661 else {
 662     skip_symbols [qw(
 663                     PL_malloc_mutex
 664                     Perl_dump_mstats
 665                     Perl_get_mstats
 666                     Perl_malloced_size
 667                     MallocCfg_ptr
 668                     MallocCfgP_ptr
 669                     )];
 670 }
 671
 672 if ($define{'PERL_USE_SAFE_PUTENV'}) {
 673     skip_symbols [qw(
 674                    PL_use_safe_putenv
 675                   )];
 676 }
 677
 678 unless ($define{'USE_ITHREADS'}) {
 679     skip_symbols [qw(
 680                     PL_thr_key
 681                     )];
 682 }
 683
 684 # USE_5005THREADS symbols. Kept as reference for easier removal
 685     skip_symbols [qw(
 686                     PL_sv_mutex
 687                     PL_strtab_mutex
 688                     PL_svref_mutex
 689                     PL_cred_mutex
 690                     PL_eval_mutex
 691                     PL_fdpid_mutex
 692                     PL_sv_lock_mutex
 693                     PL_eval_cond
 694                     PL_eval_owner
 695                     PL_threads_mutex
 696                     PL_nthreads
 697                     PL_nthreads_cond
 698                     PL_threadnum
 699                     PL_threadsv_names
 700                     PL_thrsv
 701                     PL_vtbl_mutex
 702                     Perl_condpair_magic
 703                     Perl_new_struct_thread
 704                     Perl_per_thread_magicals
 705                     Perl_thread_create
 706                     Perl_find_threadsv
 707                     Perl_unlock_condpair
 708                     Perl_magic_mutexfree
 709                     Perl_sv_lock
 710                     )];
 711
 712 unless ($define{'USE_ITHREADS'}) {
 713     skip_symbols [qw(
 714                     PL_op_mutex
 715                     PL_regex_pad
 716                     PL_regex_padav
 717                     PL_sharedsv_space
 718                     PL_sharedsv_space_mutex
 719                     PL_dollarzero_mutex
 720                     PL_hints_mutex
 721                     PL_perlio_mutex
 722                     PL_regdupe
 723                     Perl_parser_dup
 724                     Perl_dirp_dup
 725                     Perl_cx_dup
 726                     Perl_si_dup
 727                     Perl_any_dup
 728                     Perl_ss_dup
 729                     Perl_fp_dup
 730                     Perl_gp_dup
 731                     Perl_he_dup
 732                     Perl_mg_dup
 733                     Perl_re_dup
 734                     Perl_sv_dup
 735                     Perl_rvpv_dup
 736                     Perl_hek_dup
 737                     Perl_sys_intern_dup
 738                     perl_clone
 739                     perl_clone_using
 740                     Perl_sharedsv_find
 741                     Perl_sharedsv_init
 742                     Perl_sharedsv_lock
 743                     Perl_sharedsv_new
 744                     Perl_sharedsv_thrcnt_dec
 745                     Perl_sharedsv_thrcnt_inc
 746                     Perl_sharedsv_unlock
 747                     Perl_stashpv_hvname_match
 748                     Perl_regdupe_internal
 749                     )];
 750 }
 751
 752 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 753     skip_symbols [qw(
 754                     PL_my_ctx_mutex
 755                     PL_my_cxt_index
 756                     PL_my_cxt_list
 757                     PL_my_cxt_size
 758                     PL_my_cxt_keys
 759                     Perl_croak_nocontext
 760                     Perl_die_nocontext
 761                     Perl_deb_nocontext
 762                     Perl_form_nocontext
 763                     Perl_load_module_nocontext
 764                     Perl_mess_nocontext
 765                     Perl_warn_nocontext
 766                     Perl_warner_nocontext
 767                     Perl_newSVpvf_nocontext
 768                     Perl_sv_catpvf_nocontext
 769                     Perl_sv_setpvf_nocontext
 770                     Perl_sv_catpvf_mg_nocontext
 771                     Perl_sv_setpvf_mg_nocontext
 772                     Perl_my_cxt_init
 773                     Perl_my_cxt_index
 774                     )];
 775 }
 776
 777 unless ($define{'PERL_IMPLICIT_SYS'}) {
 778     skip_symbols [qw(
 779                     perl_alloc_using
 780                     perl_clone_using
 781                     )];
 782 }
 783
 784 unless ($define{'FAKE_THREADS'}) {
 785     skip_symbols [qw(PL_curthr)];
 786 }
 787
 788 unless ($define{'PL_OP_SLAB_ALLOC'}) {
 789     skip_symbols [qw(
 790                      PL_OpPtr
 791                      PL_OpSlab
 792                      PL_OpSpace
 793                      Perl_Slab_Alloc
 794                      Perl_Slab_Free
 795                     )];
 796 }
 797
 798 unless ($define{'THREADS_HAVE_PIDS'}) {
 799     skip_symbols [qw(PL_ppid)];
 800 }
 801
 802 unless ($define{'PERL_NEED_APPCTX'}) {
 803     skip_symbols [qw(
 804                     PL_appctx
 805                     )];
 806 }
 807
 808 unless ($define{'PERL_NEED_TIMESBASE'}) {
 809     skip_symbols [qw(
 810                     PL_timesbase
 811                     )];
 812 }
 813
 814 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 815     skip_symbols [qw(
 816                     PL_dumper_fd
 817                     )];
 818 }
 819 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 820     skip_symbols [qw(
 821                      Perl_gv_SVadd
 822                     )];
 823 }
 824 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
 825     skip_symbols [qw(
 826                      Perl_my_sprintf
 827                     )];
 828 }
 829 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 830     skip_symbols [qw(
 831                      Perl_pidgone
 832                      PL_pidstatus
 833                     )];
 834 }
 835
 836 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 837     skip_symbols [qw(
 838                      PL_memory_debug_header
 839                     )];
 840 }
 841
 842 if ($define{'PERL_MAD'}) {
 843     skip_symbols [qw(
 844                      PL_nextval
 845                      PL_nexttype
 846                      )];
 847 } else {
 848     skip_symbols [qw(
 849                     PL_madskills
 850                     PL_xmlfp
 851                     PL_lasttoke
 852                     PL_realtokenstart
 853                     PL_faketokens
 854                     PL_thismad
 855                     PL_thistoken
 856                     PL_thisopen
 857                     PL_thisstuff
 858                     PL_thisclose
 859                     PL_thiswhite
 860                     PL_nextwhite
 861                     PL_skipwhite
 862                     PL_endwhite
 863                     PL_curforce
 864                     Perl_pad_peg
 865                     Perl_xmldump_indent
 866                     Perl_xmldump_vindent
 867                     Perl_xmldump_all
 868                     Perl_xmldump_packsubs
 869                     Perl_xmldump_sub
 870                     Perl_xmldump_form
 871                     Perl_xmldump_eval
 872                     Perl_sv_catxmlsv
 873                     Perl_sv_catxmlpvn
 874                     Perl_sv_xmlpeek
 875                     Perl_do_pmop_xmldump
 876                     Perl_pmop_xmldump
 877                     Perl_do_op_xmldump
 878                     Perl_op_xmldump
 879                     )];
 880 }
 881
 882 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
 883     skip_symbols [qw(
 884                     PL_my_cxt_keys
 885                     Perl_my_cxt_index
 886                     )];
 887 }
 888
 889 unless ($define{'d_mmap'}) {
 890     skip_symbols [qw(
 891                     PL_mmap_page_size
 892                     )];
 893 }
 894
 895 if ($define{'d_sigaction'}) {
 896     skip_symbols [qw(
 897                     PL_sig_trapped
 898                     )];
 899 }
 900
 901 if ($^O ne 'vms') {
 902     # VMS does its own thing for these symbols.
 903     skip_symbols [qw(PL_sig_handlers_initted
 904                      PL_sig_ignoring
 905                      PL_sig_defaulting)];
 906 }
 907
 908 sub readvar {
 909     my $file = shift;
 910     my $proc = shift || sub { "PL_$_[2]" };
 911     open(VARS,$file) || die "Cannot open $file: $!\n";
 912     my @syms;
 913     while (<VARS>) {
 914         # All symbols have a Perl_ prefix because that's what embed.h
 915         # sticks in front of them.  The A?I?S?C? is strictly speaking
 916         # wrong.
 917         push(@syms, &$proc($1,$2,$3)) if (/\bPERLVAR(A?I?S?C?)\(([IGT])(\w+)/);
 918     }
 919     close(VARS);
 920     return \@syms;
 921 }
 922
 923 if ($define{'PERL_GLOBAL_STRUCT'}) {
 924     my $global = readvar($perlvars_h);
 925     skip_symbols $global;
 926     emit_symbol('Perl_GetVars');
 927     emit_symbols [qw(PL_Vars PL_VarsPtr)] unless $CCTYPE eq 'GCC';
 928 } else {
 929     skip_symbols [qw(Perl_init_global_struct Perl_free_global_struct)];
 930 }
 931
 932 # functions from *.sym files
 933
 934 my @syms = ($global_sym, $globvar_sym); # $pp_sym is not part of the API
 935
 936 # Symbols that are the public face of the PerlIO layers implementation
 937 # These are in _addition to_ the public face of the abstraction
 938 # and need to be exported to allow XS modules to implement layers
 939 my @layer_syms = qw(
 940                     PerlIOBase_binmode
 941                     PerlIOBase_clearerr
 942                     PerlIOBase_close
 943                     PerlIOBase_dup
 944                     PerlIOBase_eof
 945                     PerlIOBase_error
 946                     PerlIOBase_fileno
 947                     PerlIOBase_noop_fail
 948                     PerlIOBase_noop_ok
 949                     PerlIOBase_popped
 950                     PerlIOBase_pushed
 951                     PerlIOBase_read
 952                     PerlIOBase_setlinebuf
 953                     PerlIOBase_unread
 954                     PerlIOBuf_bufsiz
 955                     PerlIOBuf_close
 956                     PerlIOBuf_dup
 957                     PerlIOBuf_fill
 958                     PerlIOBuf_flush
 959                     PerlIOBuf_get_base
 960                     PerlIOBuf_get_cnt
 961                     PerlIOBuf_get_ptr
 962                     PerlIOBuf_open
 963                     PerlIOBuf_popped
 964                     PerlIOBuf_pushed
 965                     PerlIOBuf_read
 966                     PerlIOBuf_seek
 967                     PerlIOBuf_set_ptrcnt
 968                     PerlIOBuf_tell
 969                     PerlIOBuf_unread
 970                     PerlIOBuf_write
 971                     PerlIO_allocate
 972                     PerlIO_apply_layera
 973                     PerlIO_apply_layers
 974                     PerlIO_arg_fetch
 975                     PerlIO_debug
 976                     PerlIO_define_layer
 977                     PerlIO_isutf8
 978                     PerlIO_layer_fetch
 979                     PerlIO_list_free
 980                     PerlIO_modestr
 981                     PerlIO_parse_layers
 982                     PerlIO_pending
 983                     PerlIO_perlio
 984                     PerlIO_pop
 985                     PerlIO_push
 986                     PerlIO_sv_dup
 987                     Perl_PerlIO_clearerr
 988                     Perl_PerlIO_close
 989                     Perl_PerlIO_context_layers
 990                     Perl_PerlIO_eof
 991                     Perl_PerlIO_error
 992                     Perl_PerlIO_fileno
 993                     Perl_PerlIO_fill
 994                     Perl_PerlIO_flush
 995                     Perl_PerlIO_get_base
 996                     Perl_PerlIO_get_bufsiz
 997                     Perl_PerlIO_get_cnt
 998                     Perl_PerlIO_get_ptr
 999                     Perl_PerlIO_read
1000                     Perl_PerlIO_seek
1001                     Perl_PerlIO_set_cnt
1002                     Perl_PerlIO_set_ptrcnt
1003                     Perl_PerlIO_setlinebuf
1004                     Perl_PerlIO_stderr
1005                     Perl_PerlIO_stdin
1006                     Perl_PerlIO_stdout
1007                     Perl_PerlIO_tell
1008                     Perl_PerlIO_unread
1009                     Perl_PerlIO_write
1010 );
1011 if ($PLATFORM eq 'netware') {
1012     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
1013 }
1014
1015 if ($define{'USE_PERLIO'}) {
1016     # Export the symols that make up the PerlIO abstraction, regardless
1017     # of its implementation - read from a file
1018     push @syms, $perlio_sym;
1019
1020     # This part is then dependent on how the abstraction is implemented
1021     if ($define{'USE_SFIO'}) {
1022         # Old legacy non-stdio "PerlIO"
1023         skip_symbols \@layer_syms;
1024         skip_symbols [qw(perlsio_binmode)];
1025         # SFIO defines most of the PerlIO routines as macros
1026         # So undo most of what $perlio_sym has just done - d'oh !
1027         # Perhaps it would be better to list the ones which do exist
1028         # And emit them
1029         skip_symbols [qw(
1030                          PerlIO_canset_cnt
1031                          PerlIO_clearerr
1032                          PerlIO_close
1033                          PerlIO_eof
1034                          PerlIO_error
1035                          PerlIO_exportFILE
1036                          PerlIO_fast_gets
1037                          PerlIO_fdopen
1038                          PerlIO_fileno
1039                          PerlIO_findFILE
1040                          PerlIO_flush
1041                          PerlIO_get_base
1042                          PerlIO_get_bufsiz
1043                          PerlIO_get_cnt
1044                          PerlIO_get_ptr
1045                          PerlIO_getc
1046                          PerlIO_getname
1047                          PerlIO_has_base
1048                          PerlIO_has_cntptr
1049                          PerlIO_importFILE
1050                          PerlIO_open
1051                          PerlIO_printf
1052                          PerlIO_putc
1053                          PerlIO_puts
1054                          PerlIO_read
1055                          PerlIO_releaseFILE
1056                          PerlIO_reopen
1057                          PerlIO_rewind
1058                          PerlIO_seek
1059                          PerlIO_set_cnt
1060                          PerlIO_set_ptrcnt
1061                          PerlIO_setlinebuf
1062                          PerlIO_sprintf
1063                          PerlIO_stderr
1064                          PerlIO_stdin
1065                          PerlIO_stdout
1066                          PerlIO_stdoutf
1067                          PerlIO_tell
1068                          PerlIO_ungetc
1069                          PerlIO_vprintf
1070                          PerlIO_write
1071                          PerlIO_perlio
1072                          Perl_PerlIO_clearerr
1073                          Perl_PerlIO_close
1074                          Perl_PerlIO_eof
1075                          Perl_PerlIO_error
1076                          Perl_PerlIO_fileno
1077                          Perl_PerlIO_fill
1078                          Perl_PerlIO_flush
1079                          Perl_PerlIO_get_base
1080                          Perl_PerlIO_get_bufsiz
1081                          Perl_PerlIO_get_cnt
1082                          Perl_PerlIO_get_ptr
1083                          Perl_PerlIO_read
1084                          Perl_PerlIO_seek
1085                          Perl_PerlIO_set_cnt
1086                          Perl_PerlIO_set_ptrcnt
1087                          Perl_PerlIO_setlinebuf
1088                          Perl_PerlIO_stderr
1089                          Perl_PerlIO_stdin
1090                          Perl_PerlIO_stdout
1091                          Perl_PerlIO_tell
1092                          Perl_PerlIO_unread
1093                          Perl_PerlIO_write
1094                          PL_def_layerlist
1095                          PL_known_layers
1096                          PL_perlio
1097                          )];
1098     }
1099     else {
1100         # PerlIO with layers - export implementation
1101         emit_symbols \@layer_syms;
1102         emit_symbols [qw(perlsio_binmode)];
1103     }
1104     if ($define{'USE_ITHREADS'}) {
1105         emit_symbols [qw(
1106                         PL_perlio_mutex
1107                         )];
1108     }
1109     else {
1110         skip_symbols [qw(
1111                         PL_perlio_mutex
1112                         )];
1113     }
1114 } else {
1115         # -Uuseperlio
1116         # Skip the PerlIO layer symbols - although
1117         # nothing should have exported them anyway.
1118         skip_symbols \@layer_syms;
1119         skip_symbols [qw(
1120                         perlsio_binmode
1121                         PL_def_layerlist
1122                         PL_known_layers
1123                         PL_perlio
1124                         PL_perlio_debug_fd
1125                         PL_perlio_fd_refcnt
1126                         PL_perlio_fd_refcnt_size
1127                         )];
1128
1129         # Also do NOT add abstraction symbols from $perlio_sym
1130         # abstraction is done as #define to stdio
1131         # Remaining remnants that _may_ be functions
1132         # are handled in <DATA>
1133 }
1134
1135 for my $syms (@syms) {
1136     open (GLOBAL, "<$syms") || die "failed to open $syms: $!\n";
1137     while (<GLOBAL>) {
1138         next if (!/^[A-Za-z]/);
1139         # Functions have a Perl_ prefix
1140         # Variables have a PL_ prefix
1141         chomp($_);
1142         my $symbol = ($syms =~ /var\.sym$/i ? "PL_" : "");
1143         $symbol .= $_;
1144         emit_symbol($symbol) unless exists $skip{$symbol};
1145     }
1146     close(GLOBAL);
1147 }
1148
1149 # variables
1150
1151 if ($define{'MULTIPLICITY'}) {
1152     for my $f ($perlvars_h, $intrpvar_h, $thrdvar_h) {
1153         my $glob = readvar($f, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
1154         emit_symbols $glob;
1155     }
1156     # XXX AIX seems to want the perlvars.h symbols, for some reason
1157     if ($PLATFORM eq 'aix' or $PLATFORM eq 'os2') {     # OS/2 needs PL_thr_key
1158         my $glob = readvar($perlvars_h);
1159         emit_symbols $glob;
1160     }
1161 }
1162 else {
1163     unless ($define{'PERL_GLOBAL_STRUCT'}) {
1164         my $glob = readvar($perlvars_h);
1165         emit_symbols $glob;
1166     }
1167     unless ($define{'MULTIPLICITY'}) {
1168         my $glob = readvar($intrpvar_h);
1169         emit_symbols $glob;
1170     }
1171     unless ($define{'MULTIPLICITY'}) {
1172         my $glob = readvar($thrdvar_h);
1173         emit_symbols $glob;
1174     }
1175 }
1176
1177 sub try_symbol {
1178     my $symbol = shift;
1179
1180     return if $symbol !~ /^[A-Za-z_]/;
1181     return if $symbol =~ /^\#/;
1182     $symbol =~s/\r//g;
1183     chomp($symbol);
1184     return if exists $skip{$symbol};
1185     emit_symbol($symbol);
1186 }
1187
1188 while (<DATA>) {
1189     try_symbol($_);
1190 }
1191
1192 if ($PLATFORM =~ /^win(?:32|ce)$/) {
1193     foreach my $symbol (qw(
1194                             setuid
1195                             setgid
1196                             boot_DynaLoader
1197                             Perl_init_os_extras
1198                             Perl_thread_create
1199                             Perl_win32_init
1200                             Perl_win32_term
1201                             RunPerl
1202                             win32_async_check
1203                             win32_errno
1204                             win32_environ
1205                             win32_abort
1206                             win32_fstat
1207                             win32_stat
1208                             win32_pipe
1209                             win32_popen
1210                             win32_pclose
1211                             win32_rename
1212                             win32_setmode
1213                             win32_chsize
1214                             win32_lseek
1215                             win32_tell
1216                             win32_dup
1217                             win32_dup2
1218                             win32_open
1219                             win32_close
1220                             win32_eof
1221                             win32_read
1222                             win32_write
1223                             win32_spawnvp
1224                             win32_mkdir
1225                             win32_rmdir
1226                             win32_chdir
1227                             win32_flock
1228                             win32_execv
1229                             win32_execvp
1230                             win32_htons
1231                             win32_ntohs
1232                             win32_htonl
1233                             win32_ntohl
1234                             win32_inet_addr
1235                             win32_inet_ntoa
1236                             win32_socket
1237                             win32_bind
1238                             win32_listen
1239                             win32_accept
1240                             win32_connect
1241                             win32_send
1242                             win32_sendto
1243                             win32_recv
1244                             win32_recvfrom
1245                             win32_shutdown
1246                             win32_closesocket
1247                             win32_ioctlsocket
1248                             win32_setsockopt
1249                             win32_getsockopt
1250                             win32_getpeername
1251                             win32_getsockname
1252                             win32_gethostname
1253                             win32_gethostbyname
1254                             win32_gethostbyaddr
1255                             win32_getprotobyname
1256                             win32_getprotobynumber
1257                             win32_getservbyname
1258                             win32_getservbyport
1259                             win32_select
1260                             win32_endhostent
1261                             win32_endnetent
1262                             win32_endprotoent
1263                             win32_endservent
1264                             win32_getnetent
1265                             win32_getnetbyname
1266                             win32_getnetbyaddr
1267                             win32_getprotoent
1268                             win32_getservent
1269                             win32_sethostent
1270                             win32_setnetent
1271                             win32_setprotoent
1272                             win32_setservent
1273                             win32_getenv
1274                             win32_putenv
1275                             win32_perror
1276                             win32_malloc
1277                             win32_calloc
1278                             win32_realloc
1279                             win32_free
1280                             win32_sleep
1281                             win32_times
1282                             win32_access
1283                             win32_alarm
1284                             win32_chmod
1285                             win32_open_osfhandle
1286                             win32_get_osfhandle
1287                             win32_ioctl
1288                             win32_link
1289                             win32_unlink
1290                             win32_utime
1291                             win32_gettimeofday
1292                             win32_uname
1293                             win32_wait
1294                             win32_waitpid
1295                             win32_kill
1296                             win32_str_os_error
1297                             win32_opendir
1298                             win32_readdir
1299                             win32_telldir
1300                             win32_seekdir
1301                             win32_rewinddir
1302                             win32_closedir
1303                             win32_longpath
1304                             win32_ansipath
1305                             win32_os_id
1306                             win32_getpid
1307                             win32_crypt
1308                             win32_dynaload
1309                             win32_get_childenv
1310                             win32_free_childenv
1311                             win32_clearenv
1312                             win32_get_childdir
1313                             win32_free_childdir
1314                             win32_stdin
1315                             win32_stdout
1316                             win32_stderr
1317                             win32_ferror
1318                             win32_feof
1319                             win32_strerror
1320                             win32_fprintf
1321                             win32_printf
1322                             win32_vfprintf
1323                             win32_vprintf
1324                             win32_fread
1325                             win32_fwrite
1326                             win32_fopen
1327                             win32_fdopen
1328                             win32_freopen
1329                             win32_fclose
1330                             win32_fputs
1331                             win32_fputc
1332                             win32_ungetc
1333                             win32_getc
1334                             win32_fileno
1335                             win32_clearerr
1336                             win32_fflush
1337                             win32_ftell
1338                             win32_fseek
1339                             win32_fgetpos
1340                             win32_fsetpos
1341                             win32_rewind
1342                             win32_tmpfile
1343                             win32_setbuf
1344                             win32_setvbuf
1345                             win32_flushall
1346                             win32_fcloseall
1347                             win32_fgets
1348                             win32_gets
1349                             win32_fgetc
1350                             win32_putc
1351                             win32_puts
1352                             win32_getchar
1353                             win32_putchar
1354                            ))
1355     {
1356         try_symbol($symbol);
1357     }
1358     if ($CCTYPE eq "BORLAND") {
1359         try_symbol('_matherr');
1360     }
1361 }
1362 elsif ($PLATFORM eq 'os2') {
1363     my (%mapped, @missing);
1364     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1365     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1366     close MAP or die 'Cannot close miniperl.map';
1367
1368     @missing = grep { !exists $mapped{$_} }
1369                     keys %export;
1370     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1371     delete $export{$_} foreach @missing;
1372 }
1373 elsif ($PLATFORM eq 'MacOS') {
1374     open MACSYMS, 'macperl.sym' or die 'Cannot read macperl.sym';
1375
1376     while (<MACSYMS>) {
1377         try_symbol($_);
1378     }
1379
1380     close MACSYMS;
1381 }
1382 elsif ($PLATFORM eq 'netware') {
1383 foreach my $symbol (qw(
1384                         boot_DynaLoader
1385                         Perl_init_os_extras
1386                         Perl_thread_create
1387                         Perl_nw5_init
1388                         RunPerl
1389                         AllocStdPerl
1390                         FreeStdPerl
1391                         do_spawn2
1392                         do_aspawn
1393                         nw_uname
1394                         nw_stdin
1395                         nw_stdout
1396                         nw_stderr
1397                         nw_feof
1398                         nw_ferror
1399                         nw_fopen
1400                         nw_fclose
1401                         nw_clearerr
1402                         nw_getc
1403                         nw_fgets
1404                         nw_fputc
1405                         nw_fputs
1406                         nw_fflush
1407                         nw_ungetc
1408                         nw_fileno
1409                         nw_fdopen
1410                         nw_freopen
1411                         nw_fread
1412                         nw_fwrite
1413                         nw_setbuf
1414                         nw_setvbuf
1415                         nw_vfprintf
1416                         nw_ftell
1417                         nw_fseek
1418                         nw_rewind
1419                         nw_tmpfile
1420                         nw_fgetpos
1421                         nw_fsetpos
1422                         nw_dup
1423                         nw_access
1424                         nw_chmod
1425                         nw_chsize
1426                         nw_close
1427                         nw_dup2
1428                         nw_flock
1429                         nw_isatty
1430                         nw_link
1431                         nw_lseek
1432                         nw_stat
1433                         nw_mktemp
1434                         nw_open
1435                         nw_read
1436                         nw_rename
1437                         nw_setmode
1438                         nw_unlink
1439                         nw_utime
1440                         nw_write
1441                         nw_chdir
1442                         nw_rmdir
1443                         nw_closedir
1444                         nw_opendir
1445                         nw_readdir
1446                         nw_rewinddir
1447                         nw_seekdir
1448                         nw_telldir
1449                         nw_htonl
1450                         nw_htons
1451                         nw_ntohl
1452                         nw_ntohs
1453                         nw_accept
1454                         nw_bind
1455                         nw_connect
1456                         nw_endhostent
1457                         nw_endnetent
1458                         nw_endprotoent
1459                         nw_endservent
1460                         nw_gethostbyaddr
1461                         nw_gethostbyname
1462                         nw_gethostent
1463                         nw_gethostname
1464                         nw_getnetbyaddr
1465                         nw_getnetbyname
1466                         nw_getnetent
1467                         nw_getpeername
1468                         nw_getprotobyname
1469                         nw_getprotobynumber
1470                         nw_getprotoent
1471                         nw_getservbyname
1472                         nw_getservbyport
1473                         nw_getservent
1474                         nw_getsockname
1475                         nw_getsockopt
1476                         nw_inet_addr
1477                         nw_listen
1478                         nw_socket
1479                         nw_recv
1480                         nw_recvfrom
1481                         nw_select
1482                         nw_send
1483                         nw_sendto
1484                         nw_sethostent
1485                         nw_setnetent
1486                         nw_setprotoent
1487                         nw_setservent
1488                         nw_setsockopt
1489                         nw_inet_ntoa
1490                         nw_shutdown
1491                         nw_crypt
1492                         nw_execvp
1493                         nw_kill
1494                         nw_Popen
1495                         nw_Pclose
1496                         nw_Pipe
1497                         nw_times
1498                         nw_waitpid
1499                         nw_getpid
1500                         nw_spawnvp
1501                         nw_os_id
1502                         nw_open_osfhandle
1503                         nw_get_osfhandle
1504                         nw_abort
1505                         nw_sleep
1506                         nw_wait
1507                         nw_dynaload
1508                         nw_strerror
1509                         fnFpSetMode
1510                         fnInsertHashListAddrs
1511                         fnGetHashListAddrs
1512                         Perl_deb
1513                         Perl_sv_setsv
1514                         Perl_sv_catsv
1515                         Perl_sv_catpvn
1516                         Perl_sv_2pv
1517                         nw_freeenviron
1518                         Remove_Thread_Ctx
1519                            ))
1520     {
1521         try_symbol($symbol);
1522     }
1523 }
1524
1525 # records of type boot_module for statically linked modules (except Dynaloader)
1526 $static_ext =~ s/\//__/g;
1527 $static_ext =~ s/\bDynaLoader\b//;
1528 my @stat_mods = map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext;
1529 foreach my $symbol (@stat_mods)
1530     {
1531         try_symbol($symbol);
1532     }
1533
1534 # Now all symbols should be defined because
1535 # next we are going to output them.
1536
1537 foreach my $symbol (sort keys %export) {
1538     output_symbol($symbol);
1539 }
1540
1541 if ($PLATFORM eq 'os2') {
1542         print <<EOP;
1543     dll_perlmain=main
1544     fill_extLibpath
1545     dir_subst
1546     Perl_OS2_handler_install
1547
1548 ; LAST_ORDINAL=$sym_ord
1549 EOP
1550 }
1551
1552 sub emit_symbol {
1553     my $symbol = shift;
1554     chomp($symbol);
1555     $export{$symbol} = 1;
1556 }
1557
1558 sub output_symbol {
1559     my $symbol = shift;
1560     if ($PLATFORM =~ /^win(?:32|ce)$/) {
1561         $symbol = "_$symbol" if $CCTYPE eq 'BORLAND';
1562         print "\t$symbol\n";
1563 # XXX: binary compatibility between compilers is an exercise
1564 # in frustration :-(
1565 #        if ($CCTYPE eq "BORLAND") {
1566 #           # workaround Borland quirk by exporting both the straight
1567 #           # name and a name with leading underscore.  Note the
1568 #           # alias *must* come after the symbol itself, if both
1569 #           # are to be exported. (Linker bug?)
1570 #           print "\t_$symbol\n";
1571 #           print "\t$symbol = _$symbol\n";
1572 #       }
1573 #       elsif ($CCTYPE eq 'GCC') {
1574 #           # Symbols have leading _ whole process is $%@"% slow
1575 #           # so skip aliases for now
1576 #           nprint "\t$symbol\n";
1577 #       }
1578 #       else {
1579 #           # for binary coexistence, export both the symbol and
1580 #           # alias with leading underscore
1581 #           print "\t$symbol\n";
1582 #           print "\t_$symbol = $symbol\n";
1583 #       }
1584     }
1585     elsif ($PLATFORM eq 'os2') {
1586         printf qq(    %-31s \@%s\n),
1587           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1588         printf qq(    %-31s \@%s\n),
1589           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1590           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1591           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1592     }
1593     elsif ($PLATFORM eq 'aix' || $PLATFORM eq 'MacOS') {
1594         print "$symbol\n";
1595     }
1596         elsif ($PLATFORM eq 'netware') {
1597         print "\t$symbol,\n";
1598         }
1599 }
1600
1601 1;
1602 __DATA__
1603 # Oddities from PerlIO
1604 PerlIO_binmode
1605 PerlIO_getpos
1606 PerlIO_init
1607 PerlIO_setpos
1608 PerlIO_sprintf
1609 PerlIO_sv_dup
1610 PerlIO_tmpfile
1611 PerlIO_vsprintf