makedef.pl

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