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, 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 $intrpvar_h  = "intrpvar.h";
  76 my $perlvars_h  = "perlvars.h";
  77 my $global_sym  = "global.sym";
  78 my $pp_sym      = "pp.sym";
  79 my $globvar_sym = "globvar.sym";
  80 my $perlio_sym  = "perlio.sym";
  81 my $static_ext = "";
  82
  83 if ($PLATFORM eq 'aix') {
  84     # Nothing for now.
  85 }
  86 elsif ($PLATFORM =~ /^win(?:32|ce)$/ || $PLATFORM eq 'netware') {
  87     $CCTYPE = "MSVC" unless defined $CCTYPE;
  88     foreach ($intrpvar_h, $perlvars_h, $global_sym,
  89              $pp_sym, $globvar_sym, $perlio_sym) {
  90         s!^!..\\!;
  91     }
  92 }
  93 elsif ($PLATFORM eq 'MacOS') {
  94     foreach ($intrpvar_h, $perlvars_h, $global_sym,
  95              $pp_sym, $globvar_sym, $perlio_sym) {
  96         s!^!::!;
  97     }
  98 }
  99
 100 unless ($PLATFORM eq 'win32' || $PLATFORM eq 'wince' || $PLATFORM eq 'MacOS' || $PLATFORM eq 'netware') {
 101     open(CFG,$config_sh) || die "Cannot open $config_sh: $!\n";
 102     while (<CFG>) {
 103         if (/^(?:ccflags|optimize)='(.+)'$/) {
 104             $_ = $1;
 105             $define{$1} = 1 while /-D(\w+)/g;
 106         }
 107         if (/^(d_(?:mmap|sigaction))='(.+)'$/) {
 108             $define{$1} = $2;
 109         }
 110         if ($PLATFORM eq 'os2') {
 111             $CONFIG_ARGS = $1 if /^config_args='(.+)'$/;
 112             $ARCHNAME =    $1 if /^archname='(.+)'$/;
 113             $PATCHLEVEL =  $1 if /^perl_patchlevel='(.+)'$/;
 114         }
 115     }
 116     close(CFG);
 117 }
 118 if ($PLATFORM eq 'win32' || $PLATFORM eq 'wince') {
 119     open(CFG,"<..\\$config_sh") || die "Cannot open ..\\$config_sh: $!\n";
 120     if ((join '', <CFG>) =~ /^static_ext='(.*)'$/m) {
 121         $static_ext = $1;
 122     }
 123     close(CFG);
 124 }
 125
 126 open(CFG,$config_h) || die "Cannot open $config_h: $!\n";
 127 while (<CFG>) {
 128     $define{$1} = 1 if /^\s*#\s*define\s+(MYMALLOC)\b/;
 129     $define{$1} = 1 if /^\s*#\s*define\s+(MULTIPLICITY)\b/;
 130     $define{$1} = 1 if /^\s*#\s*define\s+(PERL_\w+)\b/;
 131     $define{$1} = 1 if /^\s*#\s*define\s+(USE_\w+)\b/;
 132 }
 133 close(CFG);
 134
 135 # perl.h logic duplication begins
 136
 137 if ($define{PERL_IMPLICIT_SYS}) {
 138     $define{PL_OP_SLAB_ALLOC} = 1;
 139 }
 140
 141 if ($define{USE_ITHREADS}) {
 142     if (!$define{MULTIPLICITY}) {
 143         $define{MULTIPLICITY} = 1;
 144     }
 145 }
 146
 147 $define{PERL_IMPLICIT_CONTEXT} ||=
 148     $define{USE_ITHREADS} ||
 149     $define{MULTIPLICITY} ;
 150
 151 if ($define{USE_ITHREADS} && $PLATFORM ne 'win32' && $^O ne 'darwin') {
 152     $define{USE_REENTRANT_API} = 1;
 153 }
 154
 155 # perl.h logic duplication ends
 156
 157 my $sym_ord = 0;
 158
 159 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n";
 160
 161 if ($PLATFORM =~ /^win(?:32|ce)$/) {
 162     (my $dll = ($define{PERL_DLL} || "perl511")) =~ s/\.dll$//i;
 163     print "LIBRARY $dll\n";
 164     # The DESCRIPTION module definition file statement is not supported
 165     # by VC7 onwards.
 166     if ($CCTYPE !~ /^MSVC7/ && $CCTYPE !~ /^MSVC8/ && $CCTYPE !~ /^MSVC9/) {
 167         print "DESCRIPTION 'Perl interpreter'\n";
 168     }
 169     print "EXPORTS\n";
 170     if ($define{PERL_IMPLICIT_SYS}) {
 171         output_symbol("perl_get_host_info");
 172         output_symbol("perl_alloc_override");
 173     }
 174     if ($define{USE_ITHREADS} and $define{PERL_IMPLICIT_SYS}) {
 175         output_symbol("perl_clone_host");
 176     }
 177 }
 178 elsif ($PLATFORM eq 'os2') {
 179     if (open my $fh, '<', 'perl5.def') {
 180       while (<$fh>) {
 181         last if /^\s*EXPORTS\b/;
 182       }
 183       while (<$fh>) {
 184         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 185         # This allows skipping ordinals which were used in older versions
 186         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 187       }
 188       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 189     }
 190     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
 191     $v .= '-thread' if $ARCHNAME =~ /-thread/;
 192     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
 193     $v .= "\@$PATCHLEVEL" if $PATCHLEVEL;
 194     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $CONFIG_ARGS'";
 195     $d = substr($d, 0, 249) . "...'" if length $d > 253;
 196     print <<"---EOP---";
 197 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
 198 $d
 199 STACKSIZE 32768
 200 CODE LOADONCALL
 201 DATA LOADONCALL NONSHARED MULTIPLE
 202 EXPORTS
 203 ---EOP---
 204 }
 205 elsif ($PLATFORM eq 'aix') {
 206     my $OSVER = `uname -v`;
 207     chop $OSVER;
 208     my $OSREL = `uname -r`;
 209     chop $OSREL;
 210     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
 211         print "#! ..\n";
 212     } else {
 213         print "#!\n";
 214     }
 215 }
 216 elsif ($PLATFORM eq 'netware') {
 217         if ($FILETYPE eq 'def') {
 218         print "LIBRARY perl511\n";
 219         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
 220         print "EXPORTS\n";
 221         }
 222         if ($define{PERL_IMPLICIT_SYS}) {
 223             output_symbol("perl_get_host_info");
 224             output_symbol("perl_alloc_override");
 225             output_symbol("perl_clone_host");
 226         }
 227 }
 228
 229 my %skip;
 230 my %export;
 231
 232 sub skip_symbols {
 233     my $list = shift;
 234     foreach my $symbol (@$list) {
 235         $skip{$symbol} = 1;
 236     }
 237 }
 238
 239 sub emit_symbols {
 240     my $list = shift;
 241     foreach my $symbol (@$list) {
 242         my $skipsym = $symbol;
 243         # XXX hack
 244         if ($define{MULTIPLICITY}) {
 245             $skipsym =~ s/^Perl_[GIT](\w+)_ptr$/PL_$1/;
 246         }
 247         emit_symbol($symbol) unless exists $skip{$skipsym};
 248     }
 249 }
 250
 251 if ($PLATFORM eq 'win32') {
 252     skip_symbols [qw(
 253                      PL_statusvalue_vms
 254                      PL_archpat_auto
 255                      PL_cryptseen
 256                      PL_DBcv
 257                      PL_generation
 258                      PL_lastgotoprobe
 259                      PL_linestart
 260                      PL_modcount
 261                      PL_pending_ident
 262                      PL_sublex_info
 263                      PL_timesbuf
 264                      main
 265                      Perl_ErrorNo
 266                      Perl_GetVars
 267                      Perl_do_exec3
 268                      Perl_do_ipcctl
 269                      Perl_do_ipcget
 270                      Perl_do_msgrcv
 271                      Perl_do_msgsnd
 272                      Perl_do_semop
 273                      Perl_do_shmio
 274                      Perl_dump_fds
 275                      Perl_init_thread_intern
 276                      Perl_my_bzero
 277                      Perl_my_bcopy
 278                      Perl_my_htonl
 279                      Perl_my_ntohl
 280                      Perl_my_swap
 281                      Perl_my_chsize
 282                      Perl_same_dirent
 283                      Perl_setenv_getix
 284                      Perl_unlnk
 285                      Perl_watch
 286                      Perl_safexcalloc
 287                      Perl_safexmalloc
 288                      Perl_safexfree
 289                      Perl_safexrealloc
 290                      Perl_my_memcmp
 291                      Perl_my_memset
 292                      PL_cshlen
 293                      PL_cshname
 294                      PL_opsave
 295                      Perl_do_exec
 296                      Perl_getenv_len
 297                      Perl_my_pclose
 298                      Perl_my_popen
 299                      Perl_my_sprintf
 300                      )];
 301 }
 302 else {
 303     skip_symbols [qw(
 304                      Perl_do_spawn
 305                      Perl_do_spawn_nowait
 306                      Perl_do_aspawn
 307                      )];
 308 }
 309 if ($PLATFORM eq 'wince') {
 310     skip_symbols [qw(
 311                      PL_statusvalue_vms
 312                      PL_archpat_auto
 313                      PL_cryptseen
 314                      PL_DBcv
 315                      PL_generation
 316                      PL_lastgotoprobe
 317                      PL_linestart
 318                      PL_modcount
 319                      PL_pending_ident
 320                      PL_sublex_info
 321                      PL_timesbuf
 322                      PL_collation_ix
 323                      PL_collation_name
 324                      PL_collation_standard
 325                      PL_collxfrm_base
 326                      PL_collxfrm_mult
 327                      PL_numeric_compat1
 328                      PL_numeric_local
 329                      PL_numeric_name
 330                      PL_numeric_radix_sv
 331                      PL_numeric_standard
 332                      PL_vtbl_collxfrm
 333                      Perl_sv_collxfrm
 334                      setgid
 335                      setuid
 336                      win32_free_childdir
 337                      win32_free_childenv
 338                      win32_get_childdir
 339                      win32_get_childenv
 340                      win32_spawnvp
 341                      main
 342                      Perl_ErrorNo
 343                      Perl_GetVars
 344                      Perl_do_exec3
 345                      Perl_do_ipcctl
 346                      Perl_do_ipcget
 347                      Perl_do_msgrcv
 348                      Perl_do_msgsnd
 349                      Perl_do_semop
 350                      Perl_do_shmio
 351                      Perl_dump_fds
 352                      Perl_init_thread_intern
 353                      Perl_my_bzero
 354                      Perl_my_bcopy
 355                      Perl_my_htonl
 356                      Perl_my_ntohl
 357                      Perl_my_swap
 358                      Perl_my_chsize
 359                      Perl_same_dirent
 360                      Perl_setenv_getix
 361                      Perl_unlnk
 362                      Perl_watch
 363                      Perl_safexcalloc
 364                      Perl_safexmalloc
 365                      Perl_safexfree
 366                      Perl_safexrealloc
 367                      Perl_my_memcmp
 368                      Perl_my_memset
 369                      PL_cshlen
 370                      PL_cshname
 371                      PL_opsave
 372                      Perl_do_exec
 373                      Perl_getenv_len
 374                      Perl_my_pclose
 375                      Perl_my_popen
 376                      Perl_my_sprintf
 377                      )];
 378 }
 379 elsif ($PLATFORM eq 'aix') {
 380     skip_symbols([qw(
 381                      Perl_dump_fds
 382                      Perl_ErrorNo
 383                      Perl_GetVars
 384                      Perl_my_bcopy
 385                      Perl_my_bzero
 386                      Perl_my_chsize
 387                      Perl_my_htonl
 388                      Perl_my_memcmp
 389                      Perl_my_memset
 390                      Perl_my_ntohl
 391                      Perl_my_swap
 392                      Perl_safexcalloc
 393                      Perl_safexfree
 394                      Perl_safexmalloc
 395                      Perl_safexrealloc
 396                      Perl_same_dirent
 397                      Perl_unlnk
 398                      Perl_sys_intern_clear
 399                      Perl_sys_intern_dup
 400                      Perl_sys_intern_init
 401                      Perl_my_sprintf
 402                      PL_cryptseen
 403                      PL_opsave
 404                      PL_statusvalue_vms
 405                      PL_sys_intern
 406                      )]);
 407     emit_symbols([qw(
 408                      boot_DynaLoader
 409                      )]);
 410 }
 411 elsif ($PLATFORM eq 'os2') {
 412     emit_symbols([qw(
 413                     ctermid
 414                     get_sysinfo
 415                     Perl_OS2_init
 416                     Perl_OS2_init3
 417                     Perl_OS2_term
 418                     OS2_Perl_data
 419                     dlopen
 420                     dlsym
 421                     dlerror
 422                     dlclose
 423                     dup2
 424                     dup
 425                     my_tmpfile
 426                     my_tmpnam
 427                     my_flock
 428                     my_rmdir
 429                     my_mkdir
 430                     my_getpwuid
 431                     my_getpwnam
 432                     my_getpwent
 433                     my_setpwent
 434                     my_endpwent
 435                     fork_with_resources
 436                     croak_with_os2error
 437                     setgrent
 438                     endgrent
 439                     getgrent
 440                     malloc_mutex
 441                     threads_mutex
 442                     nthreads
 443                     nthreads_cond
 444                     os2_cond_wait
 445                     os2_stat
 446                     os2_execname
 447                     async_mssleep
 448                     msCounter
 449                     InfoTable
 450                     pthread_join
 451                     pthread_create
 452                     pthread_detach
 453                     XS_Cwd_change_drive
 454                     XS_Cwd_current_drive
 455                     XS_Cwd_extLibpath
 456                     XS_Cwd_extLibpath_set
 457                     XS_Cwd_sys_abspath
 458                     XS_Cwd_sys_chdir
 459                     XS_Cwd_sys_cwd
 460                     XS_Cwd_sys_is_absolute
 461                     XS_Cwd_sys_is_relative
 462                     XS_Cwd_sys_is_rooted
 463                     XS_DynaLoader_mod2fname
 464                     XS_File__Copy_syscopy
 465                     Perl_Register_MQ
 466                     Perl_Deregister_MQ
 467                     Perl_Serve_Messages
 468                     Perl_Process_Messages
 469                     init_PMWIN_entries
 470                     PMWIN_entries
 471                     Perl_hab_GET
 472                     loadByOrdinal
 473                     pExtFCN
 474                     os2error
 475                     ResetWinError
 476                     CroakWinError
 477                     PL_do_undump
 478                     )]);
 479     emit_symbols([qw(os2_cond_wait
 480                      pthread_join
 481                      pthread_create
 482                      pthread_detach
 483                     )])
 484       if $define{'USE_5005THREADS'} or $define{'USE_ITHREADS'};
 485 }
 486 elsif ($PLATFORM eq 'MacOS') {
 487     skip_symbols [qw(
 488                     Perl_GetVars
 489                     PL_cryptseen
 490                     PL_cshlen
 491                     PL_cshname
 492                     PL_statusvalue_vms
 493                     PL_sys_intern
 494                     PL_opsave
 495                     PL_timesbuf
 496                     Perl_dump_fds
 497                     Perl_my_bcopy
 498                     Perl_my_bzero
 499                     Perl_my_chsize
 500                     Perl_my_htonl
 501                     Perl_my_memcmp
 502                     Perl_my_memset
 503                     Perl_my_ntohl
 504                     Perl_my_swap
 505                     Perl_safexcalloc
 506                     Perl_safexfree
 507                     Perl_safexmalloc
 508                     Perl_safexrealloc
 509                     Perl_unlnk
 510                     Perl_sys_intern_clear
 511                     Perl_sys_intern_init
 512                     )];
 513 }
 514 elsif ($PLATFORM eq 'netware') {
 515         skip_symbols [qw(
 516                         PL_statusvalue_vms
 517                         PL_archpat_auto
 518                         PL_cryptseen
 519                         PL_DBcv
 520                         PL_generation
 521                         PL_lastgotoprobe
 522                         PL_linestart
 523                         PL_modcount
 524                         PL_pending_ident
 525                         PL_sublex_info
 526                         PL_timesbuf
 527                         main
 528                         Perl_ErrorNo
 529                         Perl_GetVars
 530                         Perl_do_exec3
 531                         Perl_do_ipcctl
 532                         Perl_do_ipcget
 533                         Perl_do_msgrcv
 534                         Perl_do_msgsnd
 535                         Perl_do_semop
 536                         Perl_do_shmio
 537                         Perl_dump_fds
 538                         Perl_init_thread_intern
 539                         Perl_my_bzero
 540                         Perl_my_htonl
 541                         Perl_my_ntohl
 542                         Perl_my_swap
 543                         Perl_my_chsize
 544                         Perl_same_dirent
 545                         Perl_setenv_getix
 546                         Perl_unlnk
 547                         Perl_watch
 548                         Perl_safexcalloc
 549                         Perl_safexmalloc
 550                         Perl_safexfree
 551                         Perl_safexrealloc
 552                         Perl_my_memcmp
 553                         Perl_my_memset
 554                         PL_cshlen
 555                         PL_cshname
 556                         PL_opsave
 557                         Perl_do_exec
 558                         Perl_getenv_len
 559                         Perl_my_pclose
 560                         Perl_my_popen
 561                         Perl_sys_intern_init
 562                         Perl_sys_intern_dup
 563                         Perl_sys_intern_clear
 564                         Perl_my_bcopy
 565                         Perl_PerlIO_write
 566                         Perl_PerlIO_unread
 567                         Perl_PerlIO_tell
 568                         Perl_PerlIO_stdout
 569                         Perl_PerlIO_stdin
 570                         Perl_PerlIO_stderr
 571                         Perl_PerlIO_setlinebuf
 572                         Perl_PerlIO_set_ptrcnt
 573                         Perl_PerlIO_set_cnt
 574                         Perl_PerlIO_seek
 575                         Perl_PerlIO_read
 576                         Perl_PerlIO_get_ptr
 577                         Perl_PerlIO_get_cnt
 578                         Perl_PerlIO_get_bufsiz
 579                         Perl_PerlIO_get_base
 580                         Perl_PerlIO_flush
 581                         Perl_PerlIO_fill
 582                         Perl_PerlIO_fileno
 583                         Perl_PerlIO_error
 584                         Perl_PerlIO_eof
 585                         Perl_PerlIO_close
 586                         Perl_PerlIO_clearerr
 587                         PerlIO_perlio
 588                         )];
 589 }
 590
 591 unless ($define{'DEBUGGING'}) {
 592     skip_symbols [qw(
 593                     Perl_deb_growlevel
 594                     Perl_debop
 595                     Perl_debprofdump
 596                     Perl_debstack
 597                     Perl_debstackptrs
 598                     Perl_pad_sv
 599                     Perl_hv_assert
 600                     PL_block_type
 601                     PL_watchaddr
 602                     PL_watchok
 603                     PL_watch_pvx
 604                     )];
 605 }
 606
 607 if ($define{'PERL_IMPLICIT_CONTEXT'}) {
 608     skip_symbols [qw(
 609                     PL_sig_sv
 610                     )];
 611 }
 612
 613 if ($define{'PERL_IMPLICIT_SYS'}) {
 614     skip_symbols [qw(
 615                     Perl_getenv_len
 616                     Perl_my_popen
 617                     Perl_my_pclose
 618                     )];
 619 }
 620 else {
 621     skip_symbols [qw(
 622                     PL_Mem
 623                     PL_MemShared
 624                     PL_MemParse
 625                     PL_Env
 626                     PL_StdIO
 627                     PL_LIO
 628                     PL_Dir
 629                     PL_Sock
 630                     PL_Proc
 631                     )];
 632 }
 633
 634 unless ($define{'PERL_OLD_COPY_ON_WRITE'}) {
 635     skip_symbols [qw(
 636                     Perl_sv_setsv_cow
 637                   )];
 638 }
 639
 640 unless ($define{'USE_REENTRANT_API'}) {
 641     skip_symbols [qw(
 642                     PL_reentrant_buffer
 643                     )];
 644 }
 645
 646 if ($define{'MYMALLOC'}) {
 647     emit_symbols [qw(
 648                     Perl_dump_mstats
 649                     Perl_get_mstats
 650                     Perl_strdup
 651                     Perl_putenv
 652                     MallocCfg_ptr
 653                     MallocCfgP_ptr
 654                     )];
 655     if ($define{'USE_ITHREADS'}) {
 656         emit_symbols [qw(
 657                         PL_malloc_mutex
 658                         )];
 659     }
 660     else {
 661         skip_symbols [qw(
 662                         PL_malloc_mutex
 663                         )];
 664     }
 665 }
 666 else {
 667     skip_symbols [qw(
 668                     PL_malloc_mutex
 669                     Perl_dump_mstats
 670                     Perl_get_mstats
 671                     Perl_malloced_size
 672                     Perl_malloc_good_size
 673                     MallocCfg_ptr
 674                     MallocCfgP_ptr
 675                     )];
 676 }
 677
 678 if ($define{'PERL_USE_SAFE_PUTENV'}) {
 679     skip_symbols [qw(
 680                    PL_use_safe_putenv
 681                   )];
 682 }
 683
 684 unless ($define{'USE_ITHREADS'}) {
 685     skip_symbols [qw(
 686                     PL_thr_key
 687                     )];
 688 }
 689
 690 # USE_5005THREADS symbols. Kept as reference for easier removal
 691     skip_symbols [qw(
 692                     PL_sv_mutex
 693                     PL_strtab_mutex
 694                     PL_svref_mutex
 695                     PL_cred_mutex
 696                     PL_eval_mutex
 697                     PL_fdpid_mutex
 698                     PL_sv_lock_mutex
 699                     PL_eval_cond
 700                     PL_eval_owner
 701                     PL_threads_mutex
 702                     PL_nthreads
 703                     PL_nthreads_cond
 704                     PL_threadnum
 705                     PL_threadsv_names
 706                     PL_thrsv
 707                     PL_vtbl_mutex
 708                     Perl_condpair_magic
 709                     Perl_new_struct_thread
 710                     Perl_per_thread_magicals
 711                     Perl_thread_create
 712                     Perl_find_threadsv
 713                     Perl_unlock_condpair
 714                     Perl_magic_mutexfree
 715                     Perl_sv_lock
 716                     )];
 717
 718 unless ($define{'USE_ITHREADS'}) {
 719     skip_symbols [qw(
 720                     PL_op_mutex
 721                     PL_regex_pad
 722                     PL_regex_padav
 723                     PL_sharedsv_space
 724                     PL_sharedsv_space_mutex
 725                     PL_dollarzero_mutex
 726                     PL_hints_mutex
 727                     PL_perlio_mutex
 728                     PL_regdupe
 729                     Perl_parser_dup
 730                     Perl_dirp_dup
 731                     Perl_cx_dup
 732                     Perl_si_dup
 733                     Perl_any_dup
 734                     Perl_ss_dup
 735                     Perl_fp_dup
 736                     Perl_gp_dup
 737                     Perl_he_dup
 738                     Perl_mg_dup
 739                     Perl_mro_meta_dup
 740                     Perl_re_dup_guts
 741                     Perl_sv_dup
 742                     Perl_rvpv_dup
 743                     Perl_hek_dup
 744                     Perl_sys_intern_dup
 745                     perl_clone
 746                     perl_clone_using
 747                     Perl_sharedsv_find
 748                     Perl_sharedsv_init
 749                     Perl_sharedsv_lock
 750                     Perl_sharedsv_new
 751                     Perl_sharedsv_thrcnt_dec
 752                     Perl_sharedsv_thrcnt_inc
 753                     Perl_sharedsv_unlock
 754                     Perl_stashpv_hvname_match
 755                     Perl_regdupe_internal
 756                     Perl_newPADOP
 757                     )];
 758 }
 759
 760 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 761     skip_symbols [qw(
 762                     PL_my_ctx_mutex
 763                     PL_my_cxt_index
 764                     PL_my_cxt_list
 765                     PL_my_cxt_size
 766                     PL_my_cxt_keys
 767                     Perl_croak_nocontext
 768                     Perl_die_nocontext
 769                     Perl_deb_nocontext
 770                     Perl_form_nocontext
 771                     Perl_load_module_nocontext
 772                     Perl_mess_nocontext
 773                     Perl_warn_nocontext
 774                     Perl_warner_nocontext
 775                     Perl_newSVpvf_nocontext
 776                     Perl_sv_catpvf_nocontext
 777                     Perl_sv_setpvf_nocontext
 778                     Perl_sv_catpvf_mg_nocontext
 779                     Perl_sv_setpvf_mg_nocontext
 780                     Perl_my_cxt_init
 781                     Perl_my_cxt_index
 782                     )];
 783 }
 784
 785 unless ($define{'PERL_IMPLICIT_SYS'}) {
 786     skip_symbols [qw(
 787                     perl_alloc_using
 788                     perl_clone_using
 789                     )];
 790 }
 791
 792 unless ($define{'FAKE_THREADS'}) {
 793     skip_symbols [qw(PL_curthr)];
 794 }
 795
 796 unless ($define{'PL_OP_SLAB_ALLOC'}) {
 797     skip_symbols [qw(
 798                      PL_OpPtr
 799                      PL_OpSlab
 800                      PL_OpSpace
 801                      Perl_Slab_Alloc
 802                      Perl_Slab_Free
 803                     )];
 804 }
 805
 806 unless ($define{'PERL_DEBUG_READONLY_OPS'}) {
 807     skip_symbols [qw(
 808                     PL_slab_count
 809                     PL_slabs
 810                   )];
 811 }
 812
 813 unless ($define{'THREADS_HAVE_PIDS'}) {
 814     skip_symbols [qw(PL_ppid)];
 815 }
 816
 817 unless ($define{'PERL_NEED_APPCTX'}) {
 818     skip_symbols [qw(
 819                     PL_appctx
 820                     )];
 821 }
 822
 823 unless ($define{'PERL_NEED_TIMESBASE'}) {
 824     skip_symbols [qw(
 825                     PL_timesbase
 826                     )];
 827 }
 828
 829 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 830     skip_symbols [qw(
 831                     PL_sv_serial
 832                     )];
 833 }
 834
 835 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 836     skip_symbols [qw(
 837                     PL_dumper_fd
 838                     )];
 839 }
 840 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 841     skip_symbols [qw(
 842                      Perl_gv_SVadd
 843                     )];
 844 }
 845 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
 846     skip_symbols [qw(
 847                      Perl_my_sprintf
 848                     )];
 849 }
 850 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 851     skip_symbols [qw(
 852                      Perl_pidgone
 853                      PL_pidstatus
 854                     )];
 855 }
 856
 857 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 858     skip_symbols [qw(
 859                      PL_memory_debug_header
 860                     )];
 861 }
 862
 863 if ($define{'PERL_MAD'}) {
 864     skip_symbols [qw(
 865                      PL_nextval
 866                      PL_nexttype
 867                      )];
 868 } else {
 869     skip_symbols [qw(
 870                     PL_madskills
 871                     PL_xmlfp
 872                     PL_lasttoke
 873                     PL_realtokenstart
 874                     PL_faketokens
 875                     PL_thismad
 876                     PL_thistoken
 877                     PL_thisopen
 878                     PL_thisstuff
 879                     PL_thisclose
 880                     PL_thiswhite
 881                     PL_nextwhite
 882                     PL_skipwhite
 883                     PL_endwhite
 884                     PL_curforce
 885                     Perl_pad_peg
 886                     Perl_xmldump_indent
 887                     Perl_xmldump_vindent
 888                     Perl_xmldump_all
 889                     Perl_xmldump_packsubs
 890                     Perl_xmldump_sub
 891                     Perl_xmldump_form
 892                     Perl_xmldump_eval
 893                     Perl_sv_catxmlsv
 894                     Perl_sv_catxmlpvn
 895                     Perl_sv_xmlpeek
 896                     Perl_do_pmop_xmldump
 897                     Perl_pmop_xmldump
 898                     Perl_do_op_xmldump
 899                     Perl_op_xmldump
 900                     )];
 901 }
 902
 903 unless ($define{'MULTIPLICITY'}) {
 904     skip_symbols [qw(
 905                     PL_interp_size
 906                     PL_interp_size_5_10_0
 907                     )];
 908 }
 909
 910 unless ($define{'PERL_GLOBAL_STRUCT'}) {
 911     skip_symbols [qw(
 912                     PL_global_struct_size
 913                     )];
 914 }
 915
 916 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
 917     skip_symbols [qw(
 918                     PL_my_cxt_keys
 919                     Perl_my_cxt_index
 920                     )];
 921 }
 922
 923 unless ($define{'d_mmap'}) {
 924     skip_symbols [qw(
 925                     PL_mmap_page_size
 926                     )];
 927 }
 928
 929 if ($define{'d_sigaction'}) {
 930     skip_symbols [qw(
 931                     PL_sig_trapped
 932                     )];
 933 }
 934
 935 if ($^O ne 'vms') {
 936     # VMS does its own thing for these symbols.
 937     skip_symbols [qw(PL_sig_handlers_initted
 938                      PL_sig_ignoring
 939                      PL_sig_defaulting)];
 940 }
 941
 942 sub readvar {
 943     my $file = shift;
 944     my $proc = shift || sub { "PL_$_[2]" };
 945     open(VARS,$file) || die "Cannot open $file: $!\n";
 946     my @syms;
 947     while (<VARS>) {
 948         # All symbols have a Perl_ prefix because that's what embed.h
 949         # sticks in front of them.  The A?I?S?C? is strictly speaking
 950         # wrong.
 951         push(@syms, &$proc($1,$2,$3)) if (/\bPERLVAR(A?I?S?C?)\(([IGT])(\w+)/);
 952     }
 953     close(VARS);
 954     return \@syms;
 955 }
 956
 957 if ($define{'PERL_GLOBAL_STRUCT'}) {
 958     my $global = readvar($perlvars_h);
 959     skip_symbols $global;
 960     emit_symbol('Perl_GetVars');
 961     emit_symbols [qw(PL_Vars PL_VarsPtr)] unless $CCTYPE eq 'GCC';
 962 } else {
 963     skip_symbols [qw(Perl_init_global_struct Perl_free_global_struct)];
 964 }
 965
 966 # functions from *.sym files
 967
 968 my @syms = ($global_sym, $globvar_sym); # $pp_sym is not part of the API
 969
 970 # Symbols that are the public face of the PerlIO layers implementation
 971 # These are in _addition to_ the public face of the abstraction
 972 # and need to be exported to allow XS modules to implement layers
 973 my @layer_syms = qw(
 974                     PerlIOBase_binmode
 975                     PerlIOBase_clearerr
 976                     PerlIOBase_close
 977                     PerlIOBase_dup
 978                     PerlIOBase_eof
 979                     PerlIOBase_error
 980                     PerlIOBase_fileno
 981                     PerlIOBase_noop_fail
 982                     PerlIOBase_noop_ok
 983                     PerlIOBase_popped
 984                     PerlIOBase_pushed
 985                     PerlIOBase_read
 986                     PerlIOBase_setlinebuf
 987                     PerlIOBase_unread
 988                     PerlIOBuf_bufsiz
 989                     PerlIOBuf_close
 990                     PerlIOBuf_dup
 991                     PerlIOBuf_fill
 992                     PerlIOBuf_flush
 993                     PerlIOBuf_get_base
 994                     PerlIOBuf_get_cnt
 995                     PerlIOBuf_get_ptr
 996                     PerlIOBuf_open
 997                     PerlIOBuf_popped
 998                     PerlIOBuf_pushed
 999                     PerlIOBuf_read
1000                     PerlIOBuf_seek
1001                     PerlIOBuf_set_ptrcnt
1002                     PerlIOBuf_tell
1003                     PerlIOBuf_unread
1004                     PerlIOBuf_write
1005                     PerlIO_allocate
1006                     PerlIO_apply_layera
1007                     PerlIO_apply_layers
1008                     PerlIO_arg_fetch
1009                     PerlIO_debug
1010                     PerlIO_define_layer
1011                     PerlIO_isutf8
1012                     PerlIO_layer_fetch
1013                     PerlIO_list_free
1014                     PerlIO_modestr
1015                     PerlIO_parse_layers
1016                     PerlIO_pending
1017                     PerlIO_perlio
1018                     PerlIO_pop
1019                     PerlIO_push
1020                     PerlIO_sv_dup
1021                     Perl_PerlIO_clearerr
1022                     Perl_PerlIO_close
1023                     Perl_PerlIO_context_layers
1024                     Perl_PerlIO_eof
1025                     Perl_PerlIO_error
1026                     Perl_PerlIO_fileno
1027                     Perl_PerlIO_fill
1028                     Perl_PerlIO_flush
1029                     Perl_PerlIO_get_base
1030                     Perl_PerlIO_get_bufsiz
1031                     Perl_PerlIO_get_cnt
1032                     Perl_PerlIO_get_ptr
1033                     Perl_PerlIO_read
1034                     Perl_PerlIO_seek
1035                     Perl_PerlIO_set_cnt
1036                     Perl_PerlIO_set_ptrcnt
1037                     Perl_PerlIO_setlinebuf
1038                     Perl_PerlIO_stderr
1039                     Perl_PerlIO_stdin
1040                     Perl_PerlIO_stdout
1041                     Perl_PerlIO_tell
1042                     Perl_PerlIO_unread
1043                     Perl_PerlIO_write
1044 );
1045 if ($PLATFORM eq 'netware') {
1046     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
1047 }
1048
1049 if ($define{'USE_PERLIO'}) {
1050     # Export the symols that make up the PerlIO abstraction, regardless
1051     # of its implementation - read from a file
1052     push @syms, $perlio_sym;
1053
1054     # This part is then dependent on how the abstraction is implemented
1055     if ($define{'USE_SFIO'}) {
1056         # Old legacy non-stdio "PerlIO"
1057         skip_symbols \@layer_syms;
1058         skip_symbols [qw(perlsio_binmode)];
1059         # SFIO defines most of the PerlIO routines as macros
1060         # So undo most of what $perlio_sym has just done - d'oh !
1061         # Perhaps it would be better to list the ones which do exist
1062         # And emit them
1063         skip_symbols [qw(
1064                          PerlIO_canset_cnt
1065                          PerlIO_clearerr
1066                          PerlIO_close
1067                          PerlIO_eof
1068                          PerlIO_error
1069                          PerlIO_exportFILE
1070                          PerlIO_fast_gets
1071                          PerlIO_fdopen
1072                          PerlIO_fileno
1073                          PerlIO_findFILE
1074                          PerlIO_flush
1075                          PerlIO_get_base
1076                          PerlIO_get_bufsiz
1077                          PerlIO_get_cnt
1078                          PerlIO_get_ptr
1079                          PerlIO_getc
1080                          PerlIO_getname
1081                          PerlIO_has_base
1082                          PerlIO_has_cntptr
1083                          PerlIO_importFILE
1084                          PerlIO_open
1085                          PerlIO_printf
1086                          PerlIO_putc
1087                          PerlIO_puts
1088                          PerlIO_read
1089                          PerlIO_releaseFILE
1090                          PerlIO_reopen
1091                          PerlIO_rewind
1092                          PerlIO_seek
1093                          PerlIO_set_cnt
1094                          PerlIO_set_ptrcnt
1095                          PerlIO_setlinebuf
1096                          PerlIO_sprintf
1097                          PerlIO_stderr
1098                          PerlIO_stdin
1099                          PerlIO_stdout
1100                          PerlIO_stdoutf
1101                          PerlIO_tell
1102                          PerlIO_ungetc
1103                          PerlIO_vprintf
1104                          PerlIO_write
1105                          PerlIO_perlio
1106                          Perl_PerlIO_clearerr
1107                          Perl_PerlIO_close
1108                          Perl_PerlIO_eof
1109                          Perl_PerlIO_error
1110                          Perl_PerlIO_fileno
1111                          Perl_PerlIO_fill
1112                          Perl_PerlIO_flush
1113                          Perl_PerlIO_get_base
1114                          Perl_PerlIO_get_bufsiz
1115                          Perl_PerlIO_get_cnt
1116                          Perl_PerlIO_get_ptr
1117                          Perl_PerlIO_read
1118                          Perl_PerlIO_seek
1119                          Perl_PerlIO_set_cnt
1120                          Perl_PerlIO_set_ptrcnt
1121                          Perl_PerlIO_setlinebuf
1122                          Perl_PerlIO_stderr
1123                          Perl_PerlIO_stdin
1124                          Perl_PerlIO_stdout
1125                          Perl_PerlIO_tell
1126                          Perl_PerlIO_unread
1127                          Perl_PerlIO_write
1128                          PL_def_layerlist
1129                          PL_known_layers
1130                          PL_perlio
1131                          )];
1132     }
1133     else {
1134         # PerlIO with layers - export implementation
1135         emit_symbols \@layer_syms;
1136         emit_symbols [qw(perlsio_binmode)];
1137     }
1138     if ($define{'USE_ITHREADS'}) {
1139         emit_symbols [qw(
1140                         PL_perlio_mutex
1141                         )];
1142     }
1143     else {
1144         skip_symbols [qw(
1145                         PL_perlio_mutex
1146                         )];
1147     }
1148 } else {
1149         # -Uuseperlio
1150         # Skip the PerlIO layer symbols - although
1151         # nothing should have exported them anyway.
1152         skip_symbols \@layer_syms;
1153         skip_symbols [qw(
1154                         perlsio_binmode
1155                         PL_def_layerlist
1156                         PL_known_layers
1157                         PL_perlio
1158                         PL_perlio_debug_fd
1159                         PL_perlio_fd_refcnt
1160                         PL_perlio_fd_refcnt_size
1161                         )];
1162
1163         # Also do NOT add abstraction symbols from $perlio_sym
1164         # abstraction is done as #define to stdio
1165         # Remaining remnants that _may_ be functions
1166         # are handled in <DATA>
1167 }
1168
1169 for my $syms (@syms) {
1170     open (GLOBAL, "<$syms") || die "failed to open $syms: $!\n";
1171     while (<GLOBAL>) {
1172         next if (!/^[A-Za-z]/);
1173         # Functions have a Perl_ prefix
1174         # Variables have a PL_ prefix
1175         chomp($_);
1176         my $symbol = ($syms =~ /var\.sym$/i ? "PL_" : "");
1177         $symbol .= $_;
1178         emit_symbol($symbol) unless exists $skip{$symbol};
1179     }
1180     close(GLOBAL);
1181 }
1182
1183 # variables
1184
1185 if ($define{'MULTIPLICITY'}) {
1186     for my $f ($perlvars_h, $intrpvar_h) {
1187         my $glob = readvar($f, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
1188         emit_symbols $glob;
1189     }
1190     # XXX AIX seems to want the perlvars.h symbols, for some reason
1191     if ($PLATFORM eq 'aix' or $PLATFORM eq 'os2') {     # OS/2 needs PL_thr_key
1192         my $glob = readvar($perlvars_h);
1193         emit_symbols $glob;
1194     }
1195 }
1196 else {
1197     unless ($define{'PERL_GLOBAL_STRUCT'}) {
1198         my $glob = readvar($perlvars_h);
1199         emit_symbols $glob;
1200     }
1201     unless ($define{'MULTIPLICITY'}) {
1202         my $glob = readvar($intrpvar_h);
1203         emit_symbols $glob;
1204     }
1205 }
1206
1207 sub try_symbol {
1208     my $symbol = shift;
1209
1210     return if $symbol !~ /^[A-Za-z_]/;
1211     return if $symbol =~ /^\#/;
1212     $symbol =~s/\r//g;
1213     chomp($symbol);
1214     return if exists $skip{$symbol};
1215     emit_symbol($symbol);
1216 }
1217
1218 while (<DATA>) {
1219     try_symbol($_);
1220 }
1221
1222 if ($PLATFORM =~ /^win(?:32|ce)$/) {
1223     foreach my $symbol (qw(
1224                             setuid
1225                             setgid
1226                             boot_DynaLoader
1227                             Perl_init_os_extras
1228                             Perl_thread_create
1229                             Perl_win32_init
1230                             Perl_win32_term
1231                             RunPerl
1232                             win32_async_check
1233                             win32_errno
1234                             win32_environ
1235                             win32_abort
1236                             win32_fstat
1237                             win32_stat
1238                             win32_pipe
1239                             win32_popen
1240                             win32_pclose
1241                             win32_rename
1242                             win32_setmode
1243                             win32_chsize
1244                             win32_lseek
1245                             win32_tell
1246                             win32_dup
1247                             win32_dup2
1248                             win32_open
1249                             win32_close
1250                             win32_eof
1251                             win32_read
1252                             win32_write
1253                             win32_spawnvp
1254                             win32_mkdir
1255                             win32_rmdir
1256                             win32_chdir
1257                             win32_flock
1258                             win32_execv
1259                             win32_execvp
1260                             win32_htons
1261                             win32_ntohs
1262                             win32_htonl
1263                             win32_ntohl
1264                             win32_inet_addr
1265                             win32_inet_ntoa
1266                             win32_socket
1267                             win32_bind
1268                             win32_listen
1269                             win32_accept
1270                             win32_connect
1271                             win32_send
1272                             win32_sendto
1273                             win32_recv
1274                             win32_recvfrom
1275                             win32_shutdown
1276                             win32_closesocket
1277                             win32_ioctlsocket
1278                             win32_setsockopt
1279                             win32_getsockopt
1280                             win32_getpeername
1281                             win32_getsockname
1282                             win32_gethostname
1283                             win32_gethostbyname
1284                             win32_gethostbyaddr
1285                             win32_getprotobyname
1286                             win32_getprotobynumber
1287                             win32_getservbyname
1288                             win32_getservbyport
1289                             win32_select
1290                             win32_endhostent
1291                             win32_endnetent
1292                             win32_endprotoent
1293                             win32_endservent
1294                             win32_getnetent
1295                             win32_getnetbyname
1296                             win32_getnetbyaddr
1297                             win32_getprotoent
1298                             win32_getservent
1299                             win32_sethostent
1300                             win32_setnetent
1301                             win32_setprotoent
1302                             win32_setservent
1303                             win32_getenv
1304                             win32_putenv
1305                             win32_perror
1306                             win32_malloc
1307                             win32_calloc
1308                             win32_realloc
1309                             win32_free
1310                             win32_sleep
1311                             win32_times
1312                             win32_access
1313                             win32_alarm
1314                             win32_chmod
1315                             win32_open_osfhandle
1316                             win32_get_osfhandle
1317                             win32_ioctl
1318                             win32_link
1319                             win32_unlink
1320                             win32_utime
1321                             win32_gettimeofday
1322                             win32_uname
1323                             win32_wait
1324                             win32_waitpid
1325                             win32_kill
1326                             win32_str_os_error
1327                             win32_opendir
1328                             win32_readdir
1329                             win32_telldir
1330                             win32_seekdir
1331                             win32_rewinddir
1332                             win32_closedir
1333                             win32_longpath
1334                             win32_ansipath
1335                             win32_os_id
1336                             win32_getpid
1337                             win32_crypt
1338                             win32_dynaload
1339                             win32_get_childenv
1340                             win32_free_childenv
1341                             win32_clearenv
1342                             win32_get_childdir
1343                             win32_free_childdir
1344                             win32_stdin
1345                             win32_stdout
1346                             win32_stderr
1347                             win32_ferror
1348                             win32_feof
1349                             win32_strerror
1350                             win32_fprintf
1351                             win32_printf
1352                             win32_vfprintf
1353                             win32_vprintf
1354                             win32_fread
1355                             win32_fwrite
1356                             win32_fopen
1357                             win32_fdopen
1358                             win32_freopen
1359                             win32_fclose
1360                             win32_fputs
1361                             win32_fputc
1362                             win32_ungetc
1363                             win32_getc
1364                             win32_fileno
1365                             win32_clearerr
1366                             win32_fflush
1367                             win32_ftell
1368                             win32_fseek
1369                             win32_fgetpos
1370                             win32_fsetpos
1371                             win32_rewind
1372                             win32_tmpfile
1373                             win32_setbuf
1374                             win32_setvbuf
1375                             win32_flushall
1376                             win32_fcloseall
1377                             win32_fgets
1378                             win32_gets
1379                             win32_fgetc
1380                             win32_putc
1381                             win32_puts
1382                             win32_getchar
1383                             win32_putchar
1384                            ))
1385     {
1386         try_symbol($symbol);
1387     }
1388     if ($CCTYPE eq "BORLAND") {
1389         try_symbol('_matherr');
1390     }
1391 }
1392 elsif ($PLATFORM eq 'os2') {
1393     my (%mapped, @missing);
1394     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1395     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1396     close MAP or die 'Cannot close miniperl.map';
1397
1398     @missing = grep { !exists $mapped{$_} }
1399                     keys %export;
1400     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1401     delete $export{$_} foreach @missing;
1402 }
1403 elsif ($PLATFORM eq 'MacOS') {
1404     open MACSYMS, 'macperl.sym' or die 'Cannot read macperl.sym';
1405
1406     while (<MACSYMS>) {
1407         try_symbol($_);
1408     }
1409
1410     close MACSYMS;
1411 }
1412 elsif ($PLATFORM eq 'netware') {
1413 foreach my $symbol (qw(
1414                         boot_DynaLoader
1415                         Perl_init_os_extras
1416                         Perl_thread_create
1417                         Perl_nw5_init
1418                         RunPerl
1419                         AllocStdPerl
1420                         FreeStdPerl
1421                         do_spawn2
1422                         do_aspawn
1423                         nw_uname
1424                         nw_stdin
1425                         nw_stdout
1426                         nw_stderr
1427                         nw_feof
1428                         nw_ferror
1429                         nw_fopen
1430                         nw_fclose
1431                         nw_clearerr
1432                         nw_getc
1433                         nw_fgets
1434                         nw_fputc
1435                         nw_fputs
1436                         nw_fflush
1437                         nw_ungetc
1438                         nw_fileno
1439                         nw_fdopen
1440                         nw_freopen
1441                         nw_fread
1442                         nw_fwrite
1443                         nw_setbuf
1444                         nw_setvbuf
1445                         nw_vfprintf
1446                         nw_ftell
1447                         nw_fseek
1448                         nw_rewind
1449                         nw_tmpfile
1450                         nw_fgetpos
1451                         nw_fsetpos
1452                         nw_dup
1453                         nw_access
1454                         nw_chmod
1455                         nw_chsize
1456                         nw_close
1457                         nw_dup2
1458                         nw_flock
1459                         nw_isatty
1460                         nw_link
1461                         nw_lseek
1462                         nw_stat
1463                         nw_mktemp
1464                         nw_open
1465                         nw_read
1466                         nw_rename
1467                         nw_setmode
1468                         nw_unlink
1469                         nw_utime
1470                         nw_write
1471                         nw_chdir
1472                         nw_rmdir
1473                         nw_closedir
1474                         nw_opendir
1475                         nw_readdir
1476                         nw_rewinddir
1477                         nw_seekdir
1478                         nw_telldir
1479                         nw_htonl
1480                         nw_htons
1481                         nw_ntohl
1482                         nw_ntohs
1483                         nw_accept
1484                         nw_bind
1485                         nw_connect
1486                         nw_endhostent
1487                         nw_endnetent
1488                         nw_endprotoent
1489                         nw_endservent
1490                         nw_gethostbyaddr
1491                         nw_gethostbyname
1492                         nw_gethostent
1493                         nw_gethostname
1494                         nw_getnetbyaddr
1495                         nw_getnetbyname
1496                         nw_getnetent
1497                         nw_getpeername
1498                         nw_getprotobyname
1499                         nw_getprotobynumber
1500                         nw_getprotoent
1501                         nw_getservbyname
1502                         nw_getservbyport
1503                         nw_getservent
1504                         nw_getsockname
1505                         nw_getsockopt
1506                         nw_inet_addr
1507                         nw_listen
1508                         nw_socket
1509                         nw_recv
1510                         nw_recvfrom
1511                         nw_select
1512                         nw_send
1513                         nw_sendto
1514                         nw_sethostent
1515                         nw_setnetent
1516                         nw_setprotoent
1517                         nw_setservent
1518                         nw_setsockopt
1519                         nw_inet_ntoa
1520                         nw_shutdown
1521                         nw_crypt
1522                         nw_execvp
1523                         nw_kill
1524                         nw_Popen
1525                         nw_Pclose
1526                         nw_Pipe
1527                         nw_times
1528                         nw_waitpid
1529                         nw_getpid
1530                         nw_spawnvp
1531                         nw_os_id
1532                         nw_open_osfhandle
1533                         nw_get_osfhandle
1534                         nw_abort
1535                         nw_sleep
1536                         nw_wait
1537                         nw_dynaload
1538                         nw_strerror
1539                         fnFpSetMode
1540                         fnInsertHashListAddrs
1541                         fnGetHashListAddrs
1542                         Perl_deb
1543                         Perl_sv_setsv
1544                         Perl_sv_catsv
1545                         Perl_sv_catpvn
1546                         Perl_sv_2pv
1547                         nw_freeenviron
1548                         Remove_Thread_Ctx
1549                            ))
1550     {
1551         try_symbol($symbol);
1552     }
1553 }
1554
1555 # records of type boot_module for statically linked modules (except Dynaloader)
1556 $static_ext =~ s/\//__/g;
1557 $static_ext =~ s/\bDynaLoader\b//;
1558 my @stat_mods = map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext;
1559 foreach my $symbol (@stat_mods)
1560     {
1561         try_symbol($symbol);
1562     }
1563
1564 try_symbol("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1565
1566 # Now all symbols should be defined because
1567 # next we are going to output them.
1568
1569 foreach my $symbol (sort keys %export) {
1570     output_symbol($symbol);
1571 }
1572
1573 if ($PLATFORM eq 'os2') {
1574         print <<EOP;
1575     dll_perlmain=main
1576     fill_extLibpath
1577     dir_subst
1578     Perl_OS2_handler_install
1579
1580 ; LAST_ORDINAL=$sym_ord
1581 EOP
1582 }
1583
1584 sub emit_symbol {
1585     my $symbol = shift;
1586     chomp($symbol);
1587     $export{$symbol} = 1;
1588 }
1589
1590 sub output_symbol {
1591     my $symbol = shift;
1592     if ($PLATFORM =~ /^win(?:32|ce)$/) {
1593         $symbol = "_$symbol" if $CCTYPE eq 'BORLAND';
1594         print "\t$symbol\n";
1595 # XXX: binary compatibility between compilers is an exercise
1596 # in frustration :-(
1597 #        if ($CCTYPE eq "BORLAND") {
1598 #           # workaround Borland quirk by exporting both the straight
1599 #           # name and a name with leading underscore.  Note the
1600 #           # alias *must* come after the symbol itself, if both
1601 #           # are to be exported. (Linker bug?)
1602 #           print "\t_$symbol\n";
1603 #           print "\t$symbol = _$symbol\n";
1604 #       }
1605 #       elsif ($CCTYPE eq 'GCC') {
1606 #           # Symbols have leading _ whole process is $%@"% slow
1607 #           # so skip aliases for now
1608 #           nprint "\t$symbol\n";
1609 #       }
1610 #       else {
1611 #           # for binary coexistence, export both the symbol and
1612 #           # alias with leading underscore
1613 #           print "\t$symbol\n";
1614 #           print "\t_$symbol = $symbol\n";
1615 #       }
1616     }
1617     elsif ($PLATFORM eq 'os2') {
1618         printf qq(    %-31s \@%s\n),
1619           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1620         printf qq(    %-31s \@%s\n),
1621           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1622           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1623           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1624     }
1625     elsif ($PLATFORM eq 'aix' || $PLATFORM eq 'MacOS') {
1626         print "$symbol\n";
1627     }
1628         elsif ($PLATFORM eq 'netware') {
1629         print "\t$symbol,\n";
1630         }
1631 }
1632
1633 1;
1634 __DATA__
1635 # Oddities from PerlIO
1636 PerlIO_binmode
1637 PerlIO_getpos
1638 PerlIO_init
1639 PerlIO_setpos
1640 PerlIO_sprintf
1641 PerlIO_sv_dup
1642 PerlIO_tmpfile
1643 PerlIO_vsprintf