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 ($define{'USE_ITHREADS'}) {
 713     skip_symbols [qw(
 714                     PL_op_mutex
 715                     PL_regex_pad
 716                     PL_regex_padav
 717                     PL_sharedsv_space
 718                     PL_sharedsv_space_mutex
 719                     PL_dollarzero_mutex
 720                     PL_hints_mutex
 721                     PL_perlio_mutex
 722                     PL_regdupe
 723                     Perl_parser_dup
 724                     Perl_dirp_dup
 725                     Perl_cx_dup
 726                     Perl_si_dup
 727                     Perl_any_dup
 728                     Perl_ss_dup
 729                     Perl_fp_dup
 730                     Perl_gp_dup
 731                     Perl_he_dup
 732                     Perl_mg_dup
 733                     Perl_re_dup
 734                     Perl_sv_dup
 735                     Perl_rvpv_dup
 736                     Perl_hek_dup
 737                     Perl_sys_intern_dup
 738                     perl_clone
 739                     perl_clone_using
 740                     Perl_sharedsv_find
 741                     Perl_sharedsv_init
 742                     Perl_sharedsv_lock
 743                     Perl_sharedsv_new
 744                     Perl_sharedsv_thrcnt_dec
 745                     Perl_sharedsv_thrcnt_inc
 746                     Perl_sharedsv_unlock
 747                     Perl_stashpv_hvname_match
 748                     Perl_regdupe_internal
 749                     Perl_newPADOP
 750                     )];
 751 }
 752
 753 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 754     skip_symbols [qw(
 755                     PL_my_ctx_mutex
 756                     PL_my_cxt_index
 757                     PL_my_cxt_list
 758                     PL_my_cxt_size
 759                     PL_my_cxt_keys
 760                     Perl_croak_nocontext
 761                     Perl_die_nocontext
 762                     Perl_deb_nocontext
 763                     Perl_form_nocontext
 764                     Perl_load_module_nocontext
 765                     Perl_mess_nocontext
 766                     Perl_warn_nocontext
 767                     Perl_warner_nocontext
 768                     Perl_newSVpvf_nocontext
 769                     Perl_sv_catpvf_nocontext
 770                     Perl_sv_setpvf_nocontext
 771                     Perl_sv_catpvf_mg_nocontext
 772                     Perl_sv_setpvf_mg_nocontext
 773                     Perl_my_cxt_init
 774                     Perl_my_cxt_index
 775                     )];
 776 }
 777
 778 unless ($define{'PERL_IMPLICIT_SYS'}) {
 779     skip_symbols [qw(
 780                     perl_alloc_using
 781                     perl_clone_using
 782                     )];
 783 }
 784
 785 unless ($define{'FAKE_THREADS'}) {
 786     skip_symbols [qw(PL_curthr)];
 787 }
 788
 789 unless ($define{'PL_OP_SLAB_ALLOC'}) {
 790     skip_symbols [qw(
 791                      PL_OpPtr
 792                      PL_OpSlab
 793                      PL_OpSpace
 794                      Perl_Slab_Alloc
 795                      Perl_Slab_Free
 796                     )];
 797 }
 798
 799 unless ($define{'THREADS_HAVE_PIDS'}) {
 800     skip_symbols [qw(PL_ppid)];
 801 }
 802
 803 unless ($define{'PERL_NEED_APPCTX'}) {
 804     skip_symbols [qw(
 805                     PL_appctx
 806                     )];
 807 }
 808
 809 unless ($define{'PERL_NEED_TIMESBASE'}) {
 810     skip_symbols [qw(
 811                     PL_timesbase
 812                     )];
 813 }
 814
 815 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 816     skip_symbols [qw(
 817                     PL_dumper_fd
 818                     )];
 819 }
 820 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 821     skip_symbols [qw(
 822                      Perl_gv_SVadd
 823                     )];
 824 }
 825 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
 826     skip_symbols [qw(
 827                      Perl_my_sprintf
 828                     )];
 829 }
 830 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 831     skip_symbols [qw(
 832                      Perl_pidgone
 833                      PL_pidstatus
 834                     )];
 835 }
 836
 837 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 838     skip_symbols [qw(
 839                      PL_memory_debug_header
 840                     )];
 841 }
 842
 843 if ($define{'PERL_MAD'}) {
 844     skip_symbols [qw(
 845                      PL_nextval
 846                      PL_nexttype
 847                      )];
 848 } else {
 849     skip_symbols [qw(
 850                     PL_madskills
 851                     PL_xmlfp
 852                     PL_lasttoke
 853                     PL_realtokenstart
 854                     PL_faketokens
 855                     PL_thismad
 856                     PL_thistoken
 857                     PL_thisopen
 858                     PL_thisstuff
 859                     PL_thisclose
 860                     PL_thiswhite
 861                     PL_nextwhite
 862                     PL_skipwhite
 863                     PL_endwhite
 864                     PL_curforce
 865                     Perl_pad_peg
 866                     Perl_xmldump_indent
 867                     Perl_xmldump_vindent
 868                     Perl_xmldump_all
 869                     Perl_xmldump_packsubs
 870                     Perl_xmldump_sub
 871                     Perl_xmldump_form
 872                     Perl_xmldump_eval
 873                     Perl_sv_catxmlsv
 874                     Perl_sv_catxmlpvn
 875                     Perl_sv_xmlpeek
 876                     Perl_do_pmop_xmldump
 877                     Perl_pmop_xmldump
 878                     Perl_do_op_xmldump
 879                     Perl_op_xmldump
 880                     )];
 881 }
 882
 883 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
 884     skip_symbols [qw(
 885                     PL_my_cxt_keys
 886                     Perl_my_cxt_index
 887                     )];
 888 }
 889
 890 unless ($define{'d_mmap'}) {
 891     skip_symbols [qw(
 892                     PL_mmap_page_size
 893                     )];
 894 }
 895
 896 if ($define{'d_sigaction'}) {
 897     skip_symbols [qw(
 898                     PL_sig_trapped
 899                     )];
 900 }
 901
 902 if ($^O ne 'vms') {
 903     # VMS does its own thing for these symbols.
 904     skip_symbols [qw(PL_sig_handlers_initted
 905                      PL_sig_ignoring
 906                      PL_sig_defaulting)];
 907 }
 908
 909 sub readvar {
 910     my $file = shift;
 911     my $proc = shift || sub { "PL_$_[2]" };
 912     open(VARS,$file) || die "Cannot open $file: $!\n";
 913     my @syms;
 914     while (<VARS>) {
 915         # All symbols have a Perl_ prefix because that's what embed.h
 916         # sticks in front of them.  The A?I?S?C? is strictly speaking
 917         # wrong.
 918         push(@syms, &$proc($1,$2,$3)) if (/\bPERLVAR(A?I?S?C?)\(([IGT])(\w+)/);
 919     }
 920     close(VARS);
 921     return \@syms;
 922 }
 923
 924 if ($define{'PERL_GLOBAL_STRUCT'}) {
 925     my $global = readvar($perlvars_h);
 926     skip_symbols $global;
 927     emit_symbol('Perl_GetVars');
 928     emit_symbols [qw(PL_Vars PL_VarsPtr)] unless $CCTYPE eq 'GCC';
 929 } else {
 930     skip_symbols [qw(Perl_init_global_struct Perl_free_global_struct)];
 931 }
 932
 933 # functions from *.sym files
 934
 935 my @syms = ($global_sym, $globvar_sym); # $pp_sym is not part of the API
 936
 937 # Symbols that are the public face of the PerlIO layers implementation
 938 # These are in _addition to_ the public face of the abstraction
 939 # and need to be exported to allow XS modules to implement layers
 940 my @layer_syms = qw(
 941                     PerlIOBase_binmode
 942                     PerlIOBase_clearerr
 943                     PerlIOBase_close
 944                     PerlIOBase_dup
 945                     PerlIOBase_eof
 946                     PerlIOBase_error
 947                     PerlIOBase_fileno
 948                     PerlIOBase_noop_fail
 949                     PerlIOBase_noop_ok
 950                     PerlIOBase_popped
 951                     PerlIOBase_pushed
 952                     PerlIOBase_read
 953                     PerlIOBase_setlinebuf
 954                     PerlIOBase_unread
 955                     PerlIOBuf_bufsiz
 956                     PerlIOBuf_close
 957                     PerlIOBuf_dup
 958                     PerlIOBuf_fill
 959                     PerlIOBuf_flush
 960                     PerlIOBuf_get_base
 961                     PerlIOBuf_get_cnt
 962                     PerlIOBuf_get_ptr
 963                     PerlIOBuf_open
 964                     PerlIOBuf_popped
 965                     PerlIOBuf_pushed
 966                     PerlIOBuf_read
 967                     PerlIOBuf_seek
 968                     PerlIOBuf_set_ptrcnt
 969                     PerlIOBuf_tell
 970                     PerlIOBuf_unread
 971                     PerlIOBuf_write
 972                     PerlIO_allocate
 973                     PerlIO_apply_layera
 974                     PerlIO_apply_layers
 975                     PerlIO_arg_fetch
 976                     PerlIO_debug
 977                     PerlIO_define_layer
 978                     PerlIO_isutf8
 979                     PerlIO_layer_fetch
 980                     PerlIO_list_free
 981                     PerlIO_modestr
 982                     PerlIO_parse_layers
 983                     PerlIO_pending
 984                     PerlIO_perlio
 985                     PerlIO_pop
 986                     PerlIO_push
 987                     PerlIO_sv_dup
 988                     Perl_PerlIO_clearerr
 989                     Perl_PerlIO_close
 990                     Perl_PerlIO_context_layers
 991                     Perl_PerlIO_eof
 992                     Perl_PerlIO_error
 993                     Perl_PerlIO_fileno
 994                     Perl_PerlIO_fill
 995                     Perl_PerlIO_flush
 996                     Perl_PerlIO_get_base
 997                     Perl_PerlIO_get_bufsiz
 998                     Perl_PerlIO_get_cnt
 999                     Perl_PerlIO_get_ptr
1000                     Perl_PerlIO_read
1001                     Perl_PerlIO_seek
1002                     Perl_PerlIO_set_cnt
1003                     Perl_PerlIO_set_ptrcnt
1004                     Perl_PerlIO_setlinebuf
1005                     Perl_PerlIO_stderr
1006                     Perl_PerlIO_stdin
1007                     Perl_PerlIO_stdout
1008                     Perl_PerlIO_tell
1009                     Perl_PerlIO_unread
1010                     Perl_PerlIO_write
1011 );
1012 if ($PLATFORM eq 'netware') {
1013     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
1014 }
1015
1016 if ($define{'USE_PERLIO'}) {
1017     # Export the symols that make up the PerlIO abstraction, regardless
1018     # of its implementation - read from a file
1019     push @syms, $perlio_sym;
1020
1021     # This part is then dependent on how the abstraction is implemented
1022     if ($define{'USE_SFIO'}) {
1023         # Old legacy non-stdio "PerlIO"
1024         skip_symbols \@layer_syms;
1025         skip_symbols [qw(perlsio_binmode)];
1026         # SFIO defines most of the PerlIO routines as macros
1027         # So undo most of what $perlio_sym has just done - d'oh !
1028         # Perhaps it would be better to list the ones which do exist
1029         # And emit them
1030         skip_symbols [qw(
1031                          PerlIO_canset_cnt
1032                          PerlIO_clearerr
1033                          PerlIO_close
1034                          PerlIO_eof
1035                          PerlIO_error
1036                          PerlIO_exportFILE
1037                          PerlIO_fast_gets
1038                          PerlIO_fdopen
1039                          PerlIO_fileno
1040                          PerlIO_findFILE
1041                          PerlIO_flush
1042                          PerlIO_get_base
1043                          PerlIO_get_bufsiz
1044                          PerlIO_get_cnt
1045                          PerlIO_get_ptr
1046                          PerlIO_getc
1047                          PerlIO_getname
1048                          PerlIO_has_base
1049                          PerlIO_has_cntptr
1050                          PerlIO_importFILE
1051                          PerlIO_open
1052                          PerlIO_printf
1053                          PerlIO_putc
1054                          PerlIO_puts
1055                          PerlIO_read
1056                          PerlIO_releaseFILE
1057                          PerlIO_reopen
1058                          PerlIO_rewind
1059                          PerlIO_seek
1060                          PerlIO_set_cnt
1061                          PerlIO_set_ptrcnt
1062                          PerlIO_setlinebuf
1063                          PerlIO_sprintf
1064                          PerlIO_stderr
1065                          PerlIO_stdin
1066                          PerlIO_stdout
1067                          PerlIO_stdoutf
1068                          PerlIO_tell
1069                          PerlIO_ungetc
1070                          PerlIO_vprintf
1071                          PerlIO_write
1072                          PerlIO_perlio
1073                          Perl_PerlIO_clearerr
1074                          Perl_PerlIO_close
1075                          Perl_PerlIO_eof
1076                          Perl_PerlIO_error
1077                          Perl_PerlIO_fileno
1078                          Perl_PerlIO_fill
1079                          Perl_PerlIO_flush
1080                          Perl_PerlIO_get_base
1081                          Perl_PerlIO_get_bufsiz
1082                          Perl_PerlIO_get_cnt
1083                          Perl_PerlIO_get_ptr
1084                          Perl_PerlIO_read
1085                          Perl_PerlIO_seek
1086                          Perl_PerlIO_set_cnt
1087                          Perl_PerlIO_set_ptrcnt
1088                          Perl_PerlIO_setlinebuf
1089                          Perl_PerlIO_stderr
1090                          Perl_PerlIO_stdin
1091                          Perl_PerlIO_stdout
1092                          Perl_PerlIO_tell
1093                          Perl_PerlIO_unread
1094                          Perl_PerlIO_write
1095                          PL_def_layerlist
1096                          PL_known_layers
1097                          PL_perlio
1098                          )];
1099     }
1100     else {
1101         # PerlIO with layers - export implementation
1102         emit_symbols \@layer_syms;
1103         emit_symbols [qw(perlsio_binmode)];
1104     }
1105     if ($define{'USE_ITHREADS'}) {
1106         emit_symbols [qw(
1107                         PL_perlio_mutex
1108                         )];
1109     }
1110     else {
1111         skip_symbols [qw(
1112                         PL_perlio_mutex
1113                         )];
1114     }
1115 } else {
1116         # -Uuseperlio
1117         # Skip the PerlIO layer symbols - although
1118         # nothing should have exported them anyway.
1119         skip_symbols \@layer_syms;
1120         skip_symbols [qw(
1121                         perlsio_binmode
1122                         PL_def_layerlist
1123                         PL_known_layers
1124                         PL_perlio
1125                         PL_perlio_debug_fd
1126                         PL_perlio_fd_refcnt
1127                         PL_perlio_fd_refcnt_size
1128                         )];
1129
1130         # Also do NOT add abstraction symbols from $perlio_sym
1131         # abstraction is done as #define to stdio
1132         # Remaining remnants that _may_ be functions
1133         # are handled in <DATA>
1134 }
1135
1136 for my $syms (@syms) {
1137     open (GLOBAL, "<$syms") || die "failed to open $syms: $!\n";
1138     while (<GLOBAL>) {
1139         next if (!/^[A-Za-z]/);
1140         # Functions have a Perl_ prefix
1141         # Variables have a PL_ prefix
1142         chomp($_);
1143         my $symbol = ($syms =~ /var\.sym$/i ? "PL_" : "");
1144         $symbol .= $_;
1145         emit_symbol($symbol) unless exists $skip{$symbol};
1146     }
1147     close(GLOBAL);
1148 }
1149
1150 # variables
1151
1152 if ($define{'MULTIPLICITY'}) {
1153     for my $f ($perlvars_h, $intrpvar_h, $thrdvar_h) {
1154         my $glob = readvar($f, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
1155         emit_symbols $glob;
1156     }
1157     # XXX AIX seems to want the perlvars.h symbols, for some reason
1158     if ($PLATFORM eq 'aix' or $PLATFORM eq 'os2') {     # OS/2 needs PL_thr_key
1159         my $glob = readvar($perlvars_h);
1160         emit_symbols $glob;
1161     }
1162 }
1163 else {
1164     unless ($define{'PERL_GLOBAL_STRUCT'}) {
1165         my $glob = readvar($perlvars_h);
1166         emit_symbols $glob;
1167     }
1168     unless ($define{'MULTIPLICITY'}) {
1169         my $glob = readvar($intrpvar_h);
1170         emit_symbols $glob;
1171     }
1172     unless ($define{'MULTIPLICITY'}) {
1173         my $glob = readvar($thrdvar_h);
1174         emit_symbols $glob;
1175     }
1176 }
1177
1178 sub try_symbol {
1179     my $symbol = shift;
1180
1181     return if $symbol !~ /^[A-Za-z_]/;
1182     return if $symbol =~ /^\#/;
1183     $symbol =~s/\r//g;
1184     chomp($symbol);
1185     return if exists $skip{$symbol};
1186     emit_symbol($symbol);
1187 }
1188
1189 while (<DATA>) {
1190     try_symbol($_);
1191 }
1192
1193 if ($PLATFORM =~ /^win(?:32|ce)$/) {
1194     foreach my $symbol (qw(
1195                             setuid
1196                             setgid
1197                             boot_DynaLoader
1198                             Perl_init_os_extras
1199                             Perl_thread_create
1200                             Perl_win32_init
1201                             Perl_win32_term
1202                             RunPerl
1203                             win32_async_check
1204                             win32_errno
1205                             win32_environ
1206                             win32_abort
1207                             win32_fstat
1208                             win32_stat
1209                             win32_pipe
1210                             win32_popen
1211                             win32_pclose
1212                             win32_rename
1213                             win32_setmode
1214                             win32_chsize
1215                             win32_lseek
1216                             win32_tell
1217                             win32_dup
1218                             win32_dup2
1219                             win32_open
1220                             win32_close
1221                             win32_eof
1222                             win32_read
1223                             win32_write
1224                             win32_spawnvp
1225                             win32_mkdir
1226                             win32_rmdir
1227                             win32_chdir
1228                             win32_flock
1229                             win32_execv
1230                             win32_execvp
1231                             win32_htons
1232                             win32_ntohs
1233                             win32_htonl
1234                             win32_ntohl
1235                             win32_inet_addr
1236                             win32_inet_ntoa
1237                             win32_socket
1238                             win32_bind
1239                             win32_listen
1240                             win32_accept
1241                             win32_connect
1242                             win32_send
1243                             win32_sendto
1244                             win32_recv
1245                             win32_recvfrom
1246                             win32_shutdown
1247                             win32_closesocket
1248                             win32_ioctlsocket
1249                             win32_setsockopt
1250                             win32_getsockopt
1251                             win32_getpeername
1252                             win32_getsockname
1253                             win32_gethostname
1254                             win32_gethostbyname
1255                             win32_gethostbyaddr
1256                             win32_getprotobyname
1257                             win32_getprotobynumber
1258                             win32_getservbyname
1259                             win32_getservbyport
1260                             win32_select
1261                             win32_endhostent
1262                             win32_endnetent
1263                             win32_endprotoent
1264                             win32_endservent
1265                             win32_getnetent
1266                             win32_getnetbyname
1267                             win32_getnetbyaddr
1268                             win32_getprotoent
1269                             win32_getservent
1270                             win32_sethostent
1271                             win32_setnetent
1272                             win32_setprotoent
1273                             win32_setservent
1274                             win32_getenv
1275                             win32_putenv
1276                             win32_perror
1277                             win32_malloc
1278                             win32_calloc
1279                             win32_realloc
1280                             win32_free
1281                             win32_sleep
1282                             win32_times
1283                             win32_access
1284                             win32_alarm
1285                             win32_chmod
1286                             win32_open_osfhandle
1287                             win32_get_osfhandle
1288                             win32_ioctl
1289                             win32_link
1290                             win32_unlink
1291                             win32_utime
1292                             win32_gettimeofday
1293                             win32_uname
1294                             win32_wait
1295                             win32_waitpid
1296                             win32_kill
1297                             win32_str_os_error
1298                             win32_opendir
1299                             win32_readdir
1300                             win32_telldir
1301                             win32_seekdir
1302                             win32_rewinddir
1303                             win32_closedir
1304                             win32_longpath
1305                             win32_ansipath
1306                             win32_os_id
1307                             win32_getpid
1308                             win32_crypt
1309                             win32_dynaload
1310                             win32_get_childenv
1311                             win32_free_childenv
1312                             win32_clearenv
1313                             win32_get_childdir
1314                             win32_free_childdir
1315                             win32_stdin
1316                             win32_stdout
1317                             win32_stderr
1318                             win32_ferror
1319                             win32_feof
1320                             win32_strerror
1321                             win32_fprintf
1322                             win32_printf
1323                             win32_vfprintf
1324                             win32_vprintf
1325                             win32_fread
1326                             win32_fwrite
1327                             win32_fopen
1328                             win32_fdopen
1329                             win32_freopen
1330                             win32_fclose
1331                             win32_fputs
1332                             win32_fputc
1333                             win32_ungetc
1334                             win32_getc
1335                             win32_fileno
1336                             win32_clearerr
1337                             win32_fflush
1338                             win32_ftell
1339                             win32_fseek
1340                             win32_fgetpos
1341                             win32_fsetpos
1342                             win32_rewind
1343                             win32_tmpfile
1344                             win32_setbuf
1345                             win32_setvbuf
1346                             win32_flushall
1347                             win32_fcloseall
1348                             win32_fgets
1349                             win32_gets
1350                             win32_fgetc
1351                             win32_putc
1352                             win32_puts
1353                             win32_getchar
1354                             win32_putchar
1355                            ))
1356     {
1357         try_symbol($symbol);
1358     }
1359     if ($CCTYPE eq "BORLAND") {
1360         try_symbol('_matherr');
1361     }
1362 }
1363 elsif ($PLATFORM eq 'os2') {
1364     my (%mapped, @missing);
1365     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1366     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1367     close MAP or die 'Cannot close miniperl.map';
1368
1369     @missing = grep { !exists $mapped{$_} }
1370                     keys %export;
1371     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1372     delete $export{$_} foreach @missing;
1373 }
1374 elsif ($PLATFORM eq 'MacOS') {
1375     open MACSYMS, 'macperl.sym' or die 'Cannot read macperl.sym';
1376
1377     while (<MACSYMS>) {
1378         try_symbol($_);
1379     }
1380
1381     close MACSYMS;
1382 }
1383 elsif ($PLATFORM eq 'netware') {
1384 foreach my $symbol (qw(
1385                         boot_DynaLoader
1386                         Perl_init_os_extras
1387                         Perl_thread_create
1388                         Perl_nw5_init
1389                         RunPerl
1390                         AllocStdPerl
1391                         FreeStdPerl
1392                         do_spawn2
1393                         do_aspawn
1394                         nw_uname
1395                         nw_stdin
1396                         nw_stdout
1397                         nw_stderr
1398                         nw_feof
1399                         nw_ferror
1400                         nw_fopen
1401                         nw_fclose
1402                         nw_clearerr
1403                         nw_getc
1404                         nw_fgets
1405                         nw_fputc
1406                         nw_fputs
1407                         nw_fflush
1408                         nw_ungetc
1409                         nw_fileno
1410                         nw_fdopen
1411                         nw_freopen
1412                         nw_fread
1413                         nw_fwrite
1414                         nw_setbuf
1415                         nw_setvbuf
1416                         nw_vfprintf
1417                         nw_ftell
1418                         nw_fseek
1419                         nw_rewind
1420                         nw_tmpfile
1421                         nw_fgetpos
1422                         nw_fsetpos
1423                         nw_dup
1424                         nw_access
1425                         nw_chmod
1426                         nw_chsize
1427                         nw_close
1428                         nw_dup2
1429                         nw_flock
1430                         nw_isatty
1431                         nw_link
1432                         nw_lseek
1433                         nw_stat
1434                         nw_mktemp
1435                         nw_open
1436                         nw_read
1437                         nw_rename
1438                         nw_setmode
1439                         nw_unlink
1440                         nw_utime
1441                         nw_write
1442                         nw_chdir
1443                         nw_rmdir
1444                         nw_closedir
1445                         nw_opendir
1446                         nw_readdir
1447                         nw_rewinddir
1448                         nw_seekdir
1449                         nw_telldir
1450                         nw_htonl
1451                         nw_htons
1452                         nw_ntohl
1453                         nw_ntohs
1454                         nw_accept
1455                         nw_bind
1456                         nw_connect
1457                         nw_endhostent
1458                         nw_endnetent
1459                         nw_endprotoent
1460                         nw_endservent
1461                         nw_gethostbyaddr
1462                         nw_gethostbyname
1463                         nw_gethostent
1464                         nw_gethostname
1465                         nw_getnetbyaddr
1466                         nw_getnetbyname
1467                         nw_getnetent
1468                         nw_getpeername
1469                         nw_getprotobyname
1470                         nw_getprotobynumber
1471                         nw_getprotoent
1472                         nw_getservbyname
1473                         nw_getservbyport
1474                         nw_getservent
1475                         nw_getsockname
1476                         nw_getsockopt
1477                         nw_inet_addr
1478                         nw_listen
1479                         nw_socket
1480                         nw_recv
1481                         nw_recvfrom
1482                         nw_select
1483                         nw_send
1484                         nw_sendto
1485                         nw_sethostent
1486                         nw_setnetent
1487                         nw_setprotoent
1488                         nw_setservent
1489                         nw_setsockopt
1490                         nw_inet_ntoa
1491                         nw_shutdown
1492                         nw_crypt
1493                         nw_execvp
1494                         nw_kill
1495                         nw_Popen
1496                         nw_Pclose
1497                         nw_Pipe
1498                         nw_times
1499                         nw_waitpid
1500                         nw_getpid
1501                         nw_spawnvp
1502                         nw_os_id
1503                         nw_open_osfhandle
1504                         nw_get_osfhandle
1505                         nw_abort
1506                         nw_sleep
1507                         nw_wait
1508                         nw_dynaload
1509                         nw_strerror
1510                         fnFpSetMode
1511                         fnInsertHashListAddrs
1512                         fnGetHashListAddrs
1513                         Perl_deb
1514                         Perl_sv_setsv
1515                         Perl_sv_catsv
1516                         Perl_sv_catpvn
1517                         Perl_sv_2pv
1518                         nw_freeenviron
1519                         Remove_Thread_Ctx
1520                            ))
1521     {
1522         try_symbol($symbol);
1523     }
1524 }
1525
1526 # records of type boot_module for statically linked modules (except Dynaloader)
1527 $static_ext =~ s/\//__/g;
1528 $static_ext =~ s/\bDynaLoader\b//;
1529 my @stat_mods = map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext;
1530 foreach my $symbol (@stat_mods)
1531     {
1532         try_symbol($symbol);
1533     }
1534
1535 # Now all symbols should be defined because
1536 # next we are going to output them.
1537
1538 foreach my $symbol (sort keys %export) {
1539     output_symbol($symbol);
1540 }
1541
1542 if ($PLATFORM eq 'os2') {
1543         print <<EOP;
1544     dll_perlmain=main
1545     fill_extLibpath
1546     dir_subst
1547     Perl_OS2_handler_install
1548
1549 ; LAST_ORDINAL=$sym_ord
1550 EOP
1551 }
1552
1553 sub emit_symbol {
1554     my $symbol = shift;
1555     chomp($symbol);
1556     $export{$symbol} = 1;
1557 }
1558
1559 sub output_symbol {
1560     my $symbol = shift;
1561     if ($PLATFORM =~ /^win(?:32|ce)$/) {
1562         $symbol = "_$symbol" if $CCTYPE eq 'BORLAND';
1563         print "\t$symbol\n";
1564 # XXX: binary compatibility between compilers is an exercise
1565 # in frustration :-(
1566 #        if ($CCTYPE eq "BORLAND") {
1567 #           # workaround Borland quirk by exporting both the straight
1568 #           # name and a name with leading underscore.  Note the
1569 #           # alias *must* come after the symbol itself, if both
1570 #           # are to be exported. (Linker bug?)
1571 #           print "\t_$symbol\n";
1572 #           print "\t$symbol = _$symbol\n";
1573 #       }
1574 #       elsif ($CCTYPE eq 'GCC') {
1575 #           # Symbols have leading _ whole process is $%@"% slow
1576 #           # so skip aliases for now
1577 #           nprint "\t$symbol\n";
1578 #       }
1579 #       else {
1580 #           # for binary coexistence, export both the symbol and
1581 #           # alias with leading underscore
1582 #           print "\t$symbol\n";
1583 #           print "\t_$symbol = $symbol\n";
1584 #       }
1585     }
1586     elsif ($PLATFORM eq 'os2') {
1587         printf qq(    %-31s \@%s\n),
1588           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1589         printf qq(    %-31s \@%s\n),
1590           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1591           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1592           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1593     }
1594     elsif ($PLATFORM eq 'aix' || $PLATFORM eq 'MacOS') {
1595         print "$symbol\n";
1596     }
1597         elsif ($PLATFORM eq 'netware') {
1598         print "\t$symbol,\n";
1599         }
1600 }
1601
1602 1;
1603 __DATA__
1604 # Oddities from PerlIO
1605 PerlIO_binmode
1606 PerlIO_getpos
1607 PerlIO_init
1608 PerlIO_setpos
1609 PerlIO_sprintf
1610 PerlIO_sv_dup
1611 PerlIO_tmpfile
1612 PerlIO_vsprintf