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 as well
  10
  11 my $PLATFORM;
  12 my $CCTYPE;
  13
  14 my %bincompat5005 =
  15       (
  16        Perl_call_atexit         =>      "perl_atexit",
  17        Perl_eval_sv             =>      "perl_eval_sv",
  18        Perl_eval_pv             =>      "perl_eval_pv",
  19        Perl_call_argv           =>      "perl_call_argv",
  20        Perl_call_method         =>      "perl_call_method",
  21        Perl_call_pv             =>      "perl_call_pv",
  22        Perl_call_sv             =>      "perl_call_sv",
  23        Perl_get_av              =>      "perl_get_av",
  24        Perl_get_cv              =>      "perl_get_cv",
  25        Perl_get_hv              =>      "perl_get_hv",
  26        Perl_get_sv              =>      "perl_get_sv",
  27        Perl_init_i18nl10n       =>      "perl_init_i18nl10n",
  28        Perl_init_i18nl14n       =>      "perl_init_i18nl14n",
  29        Perl_new_collate         =>      "perl_new_collate",
  30        Perl_new_ctype           =>      "perl_new_ctype",
  31        Perl_new_numeric         =>      "perl_new_numeric",
  32        Perl_require_pv          =>      "perl_require_pv",
  33        Perl_safesyscalloc       =>      "Perl_safecalloc",
  34        Perl_safesysfree         =>      "Perl_safefree",
  35        Perl_safesysmalloc       =>      "Perl_safemalloc",
  36        Perl_safesysrealloc      =>      "Perl_saferealloc",
  37        Perl_set_numeric_local   =>      "perl_set_numeric_local",
  38        Perl_set_numeric_standard  =>    "perl_set_numeric_standard",
  39        Perl_malloc              =>      "malloc",
  40        Perl_mfree               =>      "free",
  41        Perl_realloc             =>      "realloc",
  42        Perl_calloc              =>      "calloc",
  43       );
  44
  45 my $bincompat5005 = join("|", keys %bincompat5005);
  46
  47 while (@ARGV) {
  48     my $flag = shift;
  49     $define{$1} = 1 if ($flag =~ /^-D(\w+)$/);
  50     $define{$1} = $2 if ($flag =~ /^-D(\w+)=(.+)$/);
  51     $CCTYPE   = $1 if ($flag =~ /^CCTYPE=(\w+)$/);
  52     $PLATFORM = $1 if ($flag =~ /^PLATFORM=(\w+)$/);
  53 }
  54
  55 my @PLATFORM = qw(aix win32 os2 MacOS);
  56 my %PLATFORM;
  57 @PLATFORM{@PLATFORM} = ();
  58
  59 defined $PLATFORM || die "PLATFORM undefined, must be one of: @PLATFORM\n";
  60 exists $PLATFORM{$PLATFORM} || die "PLATFORM must be one of: @PLATFORM\n";
  61
  62 my $config_sh   = "config.sh";
  63 my $config_h    = "config.h";
  64 my $thrdvar_h   = "thrdvar.h";
  65 my $intrpvar_h  = "intrpvar.h";
  66 my $perlvars_h  = "perlvars.h";
  67 my $global_sym  = "global.sym";
  68 my $pp_sym      = "pp.sym";
  69 my $globvar_sym = "globvar.sym";
  70 my $perlio_sym  = "perlio.sym";
  71
  72 if ($PLATFORM eq 'aix') {
  73     # Nothing for now.
  74 }
  75 elsif ($PLATFORM eq 'win32') {
  76     $CCTYPE = "MSVC" unless defined $CCTYPE;
  77     foreach ($thrdvar_h, $intrpvar_h, $perlvars_h, $global_sym,
  78                 $pp_sym, $globvar_sym, $perlio_sym) {
  79         s!^!..\\!;
  80     }
  81 }
  82 elsif ($PLATFORM eq 'MacOS') {
  83     foreach ($thrdvar_h, $intrpvar_h, $perlvars_h, $global_sym,
  84                 $pp_sym, $globvar_sym, $perlio_sym) {
  85         s!^!::!;
  86     }
  87 }
  88
  89 unless ($PLATFORM eq 'win32' || $PLATFORM eq 'MacOS') {
  90     open(CFG,$config_sh) || die "Cannot open $config_sh: $!\n";
  91     while (<CFG>) {
  92         if (/^(?:ccflags|optimize)='(.+)'$/) {
  93             $_ = $1;
  94             $define{$1} = 1 while /-D(\w+)/g;
  95         }
  96         if ($PLATFORM eq 'os2') {
  97             $CONFIG_ARGS = $1 if /^(?:config_args)='(.+)'$/;
  98             $ARCHNAME =    $1 if /^(?:archname)='(.+)'$/;
  99         }
 100     }
 101     close(CFG);
 102 }
 103
 104 open(CFG,$config_h) || die "Cannot open $config_h: $!\n";
 105 while (<CFG>) {
 106     $define{$1} = 1 if /^\s*#\s*define\s+(MYMALLOC)\b/;
 107     $define{$1} = 1 if /^\s*#\s*define\s+(MULTIPLICITY)\b/;
 108     $define{$1} = 1 if /^\s*#\s*define\s+(PERL_\w+)\b/;
 109     $define{$1} = 1 if /^\s*#\s*define\s+(USE_\w+)\b/;
 110 }
 111 close(CFG);
 112
 113 # perl.h logic duplication begins
 114
 115 if ($define{USE_ITHREADS}) {
 116     if (!$define{MULTIPLICITY} && !$define{PERL_OBJECT}) {
 117         $define{MULTIPLICITY} = 1;
 118     }
 119 }
 120
 121 $define{PERL_IMPLICIT_CONTEXT} ||=
 122     $define{USE_ITHREADS} ||
 123     $define{USE_5005THREADS}  ||
 124     $define{MULTIPLICITY} ;
 125
 126 if ($define{PERL_CAPI}) {
 127     delete $define{PERL_OBJECT};
 128     $define{MULTIPLICITY} = 1;
 129     $define{PERL_IMPLICIT_CONTEXT} = 1;
 130     $define{PERL_IMPLICIT_SYS}     = 1;
 131 }
 132
 133 if ($define{PERL_OBJECT}) {
 134     $define{PERL_IMPLICIT_CONTEXT} = 1;
 135     $define{PERL_IMPLICIT_SYS}     = 1;
 136 }
 137
 138 # perl.h logic duplication ends
 139
 140 if ($PLATFORM eq 'win32') {
 141     warn join(' ',keys %define)."\n";
 142     print "LIBRARY Perl57\n";
 143     print "DESCRIPTION 'Perl interpreter'\n";
 144     print "EXPORTS\n";
 145     if ($define{PERL_IMPLICIT_SYS}) {
 146         output_symbol("perl_get_host_info");
 147         output_symbol("perl_alloc_override");
 148     }
 149 }
 150 elsif ($PLATFORM eq 'os2') {
 151     ($v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
 152     $v .= '-thread' if $ARCHNAME =~ /-thread/;
 153     ($dll = $define{PERL_DLL}) =~ s/\.dll$//i;
 154     $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $CONFIG_ARGS'";
 155     $d = substr($d, 0, 249) . "...'" if length $d > 253;
 156     print <<"---EOP---";
 157 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
 158 $d
 159 STACKSIZE 32768
 160 CODE LOADONCALL
 161 DATA LOADONCALL NONSHARED MULTIPLE
 162 EXPORTS
 163 ---EOP---
 164 }
 165 elsif ($PLATFORM eq 'aix') {
 166     $OSVER = `uname -v`;
 167     chop $OSVER;
 168     $OSREL = `uname -r`;
 169     chop $OSREL;
 170     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
 171         print "#! ..\n";
 172     } else {
 173         print "#!\n";
 174     }
 175 }
 176
 177 my %skip;
 178 my %export;
 179
 180 sub skip_symbols {
 181     my $list = shift;
 182     foreach my $symbol (@$list) {
 183         $skip{$symbol} = 1;
 184     }
 185 }
 186
 187 sub emit_symbols {
 188     my $list = shift;
 189     foreach my $symbol (@$list) {
 190         my $skipsym = $symbol;
 191         # XXX hack
 192         if ($define{PERL_OBJECT} || $define{MULTIPLICITY}) {
 193             $skipsym =~ s/^Perl_[GIT](\w+)_ptr$/PL_$1/;
 194         }
 195         emit_symbol($symbol) unless exists $skip{$skipsym};
 196     }
 197 }
 198
 199 if ($PLATFORM eq 'win32') {
 200     skip_symbols [qw(
 201                      PL_statusvalue_vms
 202                      PL_archpat_auto
 203                      PL_cryptseen
 204                      PL_DBcv
 205                      PL_generation
 206                      PL_lastgotoprobe
 207                      PL_linestart
 208                      PL_modcount
 209                      PL_pending_ident
 210                      PL_sortcxix
 211                      PL_sublex_info
 212                      PL_timesbuf
 213                      main
 214                      Perl_ErrorNo
 215                      Perl_GetVars
 216                      Perl_do_exec3
 217                      Perl_do_ipcctl
 218                      Perl_do_ipcget
 219                      Perl_do_msgrcv
 220                      Perl_do_msgsnd
 221                      Perl_do_semop
 222                      Perl_do_shmio
 223                      Perl_dump_fds
 224                      Perl_init_thread_intern
 225                      Perl_my_bzero
 226                      Perl_my_htonl
 227                      Perl_my_ntohl
 228                      Perl_my_swap
 229                      Perl_my_chsize
 230                      Perl_same_dirent
 231                      Perl_setenv_getix
 232                      Perl_unlnk
 233                      Perl_watch
 234                      Perl_safexcalloc
 235                      Perl_safexmalloc
 236                      Perl_safexfree
 237                      Perl_safexrealloc
 238                      Perl_my_memcmp
 239                      Perl_my_memset
 240                      PL_cshlen
 241                      PL_cshname
 242                      PL_opsave
 243                      Perl_do_exec
 244                      Perl_getenv_len
 245                      Perl_my_pclose
 246                      Perl_my_popen
 247                      )];
 248 }
 249 elsif ($PLATFORM eq 'aix') {
 250     skip_symbols([qw(
 251                      Perl_dump_fds
 252                      Perl_ErrorNo
 253                      Perl_GetVars
 254                      Perl_my_bcopy
 255                      Perl_my_bzero
 256                      Perl_my_chsize
 257                      Perl_my_htonl
 258                      Perl_my_memcmp
 259                      Perl_my_memset
 260                      Perl_my_ntohl
 261                      Perl_my_swap
 262                      Perl_safexcalloc
 263                      Perl_safexfree
 264                      Perl_safexmalloc
 265                      Perl_safexrealloc
 266                      Perl_same_dirent
 267                      Perl_unlnk
 268                      Perl_sys_intern_clear
 269                      Perl_sys_intern_dup
 270                      Perl_sys_intern_init
 271                      PL_cryptseen
 272                      PL_opsave
 273                      PL_statusvalue_vms
 274                      PL_sys_intern
 275                      )]);
 276 }
 277 elsif ($PLATFORM eq 'os2') {
 278     emit_symbols([qw(
 279                     ctermid
 280                     get_sysinfo
 281                     Perl_OS2_init
 282                     OS2_Perl_data
 283                     dlopen
 284                     dlsym
 285                     dlerror
 286                     dlclose
 287                     my_tmpfile
 288                     my_tmpnam
 289                     my_flock
 290                     my_rmdir
 291                     my_mkdir
 292                     malloc_mutex
 293                     threads_mutex
 294                     nthreads
 295                     nthreads_cond
 296                     os2_cond_wait
 297                     os2_stat
 298                     pthread_join
 299                     pthread_create
 300                     pthread_detach
 301                     XS_Cwd_change_drive
 302                     XS_Cwd_current_drive
 303                     XS_Cwd_extLibpath
 304                     XS_Cwd_extLibpath_set
 305                     XS_Cwd_sys_abspath
 306                     XS_Cwd_sys_chdir
 307                     XS_Cwd_sys_cwd
 308                     XS_Cwd_sys_is_absolute
 309                     XS_Cwd_sys_is_relative
 310                     XS_Cwd_sys_is_rooted
 311                     XS_DynaLoader_mod2fname
 312                     XS_File__Copy_syscopy
 313                     Perl_Register_MQ
 314                     Perl_Deregister_MQ
 315                     Perl_Serve_Messages
 316                     Perl_Process_Messages
 317                     init_PMWIN_entries
 318                     PMWIN_entries
 319                     Perl_hab_GET
 320                     )]);
 321 }
 322 elsif ($PLATFORM eq 'MacOS') {
 323     skip_symbols [qw(
 324                     Perl_GetVars
 325                     PL_cryptseen
 326                     PL_cshlen
 327                     PL_cshname
 328                     PL_statusvalue_vms
 329                     PL_sys_intern
 330                     PL_opsave
 331                     PL_timesbuf
 332                     Perl_dump_fds
 333                     Perl_my_bcopy
 334                     Perl_my_bzero
 335                     Perl_my_chsize
 336                     Perl_my_htonl
 337                     Perl_my_memcmp
 338                     Perl_my_memset
 339                     Perl_my_ntohl
 340                     Perl_my_swap
 341                     Perl_safexcalloc
 342                     Perl_safexfree
 343                     Perl_safexmalloc
 344                     Perl_safexrealloc
 345                     Perl_unlnk
 346                     Perl_sys_intern_clear
 347                     Perl_sys_intern_init
 348                     )];
 349 }
 350
 351
 352 unless ($define{'DEBUGGING'}) {
 353     skip_symbols [qw(
 354                     Perl_deb_growlevel
 355                     Perl_debop
 356                     Perl_debprofdump
 357                     Perl_debstack
 358                     Perl_debstackptrs
 359                     Perl_runops_debug
 360                     Perl_sv_peek
 361                     PL_block_type
 362                     PL_watchaddr
 363                     PL_watchok
 364                     )];
 365 }
 366
 367 if ($define{'PERL_IMPLICIT_SYS'}) {
 368     skip_symbols [qw(
 369                     Perl_getenv_len
 370                     Perl_my_popen
 371                     Perl_my_pclose
 372                     )];
 373 }
 374 else {
 375     skip_symbols [qw(
 376                     PL_Mem
 377                     PL_MemShared
 378                     PL_MemParse
 379                     PL_Env
 380                     PL_StdIO
 381                     PL_LIO
 382                     PL_Dir
 383                     PL_Sock
 384                     PL_Proc
 385                     )];
 386 }
 387
 388 unless ($define{'PERL_FLEXIBLE_EXCEPTIONS'}) {
 389     skip_symbols [qw(
 390                     PL_protect
 391                     Perl_default_protect
 392                     Perl_vdefault_protect
 393                     )];
 394 }
 395
 396 if ($define{'MYMALLOC'}) {
 397     emit_symbols [qw(
 398                     Perl_dump_mstats
 399                     Perl_get_mstats
 400                     Perl_malloc
 401                     Perl_mfree
 402                     Perl_realloc
 403                     Perl_calloc
 404                     Perl_strdup
 405                     Perl_putenv
 406                     )];
 407     if ($define{'USE_5005THREADS'} || $define{'USE_ITHREADS'}) {
 408         emit_symbols [qw(
 409                         PL_malloc_mutex
 410                         )];
 411     }
 412     else {
 413         skip_symbols [qw(
 414                         PL_malloc_mutex
 415                         )];
 416     }
 417 }
 418 else {
 419     skip_symbols [qw(
 420                     PL_malloc_mutex
 421                     Perl_dump_mstats
 422                     Perl_get_mstats
 423                     Perl_malloc
 424                     Perl_mfree
 425                     Perl_realloc
 426                     Perl_calloc
 427                     Perl_malloced_size
 428                     )];
 429 }
 430
 431 unless ($define{'USE_5005THREADS'} || $define{'USE_ITHREADS'}) {
 432     skip_symbols [qw(
 433                     PL_thr_key
 434                     )];
 435 }
 436
 437 unless ($define{'USE_5005THREADS'}) {
 438     skip_symbols [qw(
 439                     PL_sv_mutex
 440                     PL_strtab_mutex
 441                     PL_svref_mutex
 442                     PL_cred_mutex
 443                     PL_eval_mutex
 444                     PL_fdpid_mutex
 445                     PL_sv_lock_mutex
 446                     PL_eval_cond
 447                     PL_eval_owner
 448                     PL_threads_mutex
 449                     PL_nthreads
 450                     PL_nthreads_cond
 451                     PL_threadnum
 452                     PL_threadsv_names
 453                     PL_thrsv
 454                     PL_vtbl_mutex
 455                     Perl_condpair_magic
 456                     Perl_new_struct_thread
 457                     Perl_per_thread_magicals
 458                     Perl_thread_create
 459                     Perl_find_threadsv
 460                     Perl_unlock_condpair
 461                     Perl_magic_mutexfree
 462                     Perl_sv_lock
 463                     )];
 464 }
 465
 466 unless ($define{'USE_ITHREADS'}) {
 467     skip_symbols [qw(
 468                     PL_ptr_table
 469                     PL_op_mutex
 470                     Perl_dirp_dup
 471                     Perl_cx_dup
 472                     Perl_si_dup
 473                     Perl_any_dup
 474                     Perl_ss_dup
 475                     Perl_fp_dup
 476                     Perl_gp_dup
 477                     Perl_he_dup
 478                     Perl_mg_dup
 479                     Perl_re_dup
 480                     Perl_sv_dup
 481                     Perl_sys_intern_dup
 482                     Perl_ptr_table_clear
 483                     Perl_ptr_table_fetch
 484                     Perl_ptr_table_free
 485                     Perl_ptr_table_new
 486                     Perl_ptr_table_clear
 487                     Perl_ptr_table_free
 488                     Perl_ptr_table_split
 489                     Perl_ptr_table_store
 490                     perl_clone
 491                     perl_clone_using
 492                     )];
 493 }
 494
 495 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 496     skip_symbols [qw(
 497                     Perl_croak_nocontext
 498                     Perl_die_nocontext
 499                     Perl_deb_nocontext
 500                     Perl_form_nocontext
 501                     Perl_load_module_nocontext
 502                     Perl_mess_nocontext
 503                     Perl_warn_nocontext
 504                     Perl_warner_nocontext
 505                     Perl_newSVpvf_nocontext
 506                     Perl_sv_catpvf_nocontext
 507                     Perl_sv_setpvf_nocontext
 508                     Perl_sv_catpvf_mg_nocontext
 509                     Perl_sv_setpvf_mg_nocontext
 510                     )];
 511 }
 512
 513 unless ($define{'PERL_IMPLICIT_SYS'}) {
 514     skip_symbols [qw(
 515                     perl_alloc_using
 516                     perl_clone_using
 517                     )];
 518 }
 519
 520 unless ($define{'FAKE_THREADS'}) {
 521     skip_symbols [qw(PL_curthr)];
 522 }
 523
 524 sub readvar {
 525     my $file = shift;
 526     my $proc = shift || sub { "PL_$_[2]" };
 527     open(VARS,$file) || die "Cannot open $file: $!\n";
 528     my @syms;
 529     while (<VARS>) {
 530         # All symbols have a Perl_ prefix because that's what embed.h
 531         # sticks in front of them.
 532         push(@syms, &$proc($1,$2,$3)) if (/\bPERLVAR(A?I?C?)\(([IGT])(\w+)/);
 533     }
 534     close(VARS);
 535     return \@syms;
 536 }
 537
 538 if ($define{'USE_5005THREADS'}) {
 539     my $thrd = readvar($thrdvar_h);
 540     skip_symbols $thrd;
 541 }
 542
 543 if ($define{'PERL_GLOBAL_STRUCT'}) {
 544     my $global = readvar($perlvars_h);
 545     skip_symbols $global;
 546     emit_symbol('Perl_GetVars');
 547     emit_symbols [qw(PL_Vars PL_VarsPtr)] unless $CCTYPE eq 'GCC';
 548 }
 549
 550 # functions from *.sym files
 551
 552 my @syms = ($global_sym, $globvar_sym); # $pp_sym is not part of the API
 553
 554 my @layer_syms = qw(
 555                          PerlIOBase_clearerr
 556                          PerlIOBase_close
 557                          PerlIOBase_eof
 558                          PerlIOBase_error
 559                          PerlIOBase_fileno
 560                          PerlIOBase_setlinebuf
 561                          PerlIOBase_pushed
 562                          PerlIOBase_read
 563                          PerlIOBase_unread
 564                          PerlIOBuf_bufsiz
 565                          PerlIOBuf_fill
 566                          PerlIOBuf_flush
 567                          PerlIOBuf_get_cnt
 568                          PerlIOBuf_get_ptr
 569                          PerlIOBuf_open
 570                          PerlIOBuf_pushed
 571                          PerlIOBuf_read
 572                          PerlIOBuf_seek
 573                          PerlIOBuf_set_ptrcnt
 574                          PerlIOBuf_tell
 575                          PerlIOBuf_unread
 576                          PerlIOBuf_write
 577                          PerlIO_define_layer
 578                          PerlIO_arg_fetch
 579                          PerlIO_pending
 580                          PerlIO_allocate
 581                          PerlIO_push
 582                          PerlIO_unread
 583 );
 584
 585 if ($define{'USE_PERLIO'}) {
 586     push @syms, $perlio_sym;
 587     if ($define{'USE_SFIO'}) {
 588         skip_symbols \@layer_syms;
 589         # SFIO defines most of the PerlIO routines as macros
 590         skip_symbols [qw(
 591                          PerlIO_canset_cnt
 592                          PerlIO_clearerr
 593                          PerlIO_close
 594                          PerlIO_eof
 595                          PerlIO_error
 596                          PerlIO_exportFILE
 597                          PerlIO_fast_gets
 598                          PerlIO_fdopen
 599                          PerlIO_fileno
 600                          PerlIO_findFILE
 601                          PerlIO_flush
 602                          PerlIO_get_base
 603                          PerlIO_get_bufsiz
 604                          PerlIO_get_cnt
 605                          PerlIO_get_ptr
 606                          PerlIO_getc
 607                          PerlIO_getname
 608                          PerlIO_has_base
 609                          PerlIO_has_cntptr
 610                          PerlIO_importFILE
 611                          PerlIO_open
 612                          PerlIO_printf
 613                          PerlIO_putc
 614                          PerlIO_puts
 615                          PerlIO_read
 616                          PerlIO_releaseFILE
 617                          PerlIO_reopen
 618                          PerlIO_rewind
 619                          PerlIO_seek
 620                          PerlIO_set_cnt
 621                          PerlIO_set_ptrcnt
 622                          PerlIO_setlinebuf
 623                          PerlIO_sprintf
 624                          PerlIO_stderr
 625                          PerlIO_stdin
 626                          PerlIO_stdout
 627                          PerlIO_stdoutf
 628                          PerlIO_tell
 629                          PerlIO_ungetc
 630                          PerlIO_vprintf
 631                          PerlIO_write
 632                          )];
 633     }
 634 } else {
 635         # Skip the PerlIO New Generation symbols.
 636         skip_symbols \@layer_syms;
 637 }
 638
 639 for my $syms (@syms) {
 640     open (GLOBAL, "<$syms") || die "failed to open $syms: $!\n";
 641     while (<GLOBAL>) {
 642         next if (!/^[A-Za-z]/);
 643         # Functions have a Perl_ prefix
 644         # Variables have a PL_ prefix
 645         chomp($_);
 646         my $symbol = ($syms =~ /var\.sym$/i ? "PL_" : "");
 647         $symbol .= $_;
 648         emit_symbol($symbol) unless exists $skip{$symbol};
 649     }
 650     close(GLOBAL);
 651 }
 652
 653 # variables
 654
 655 if ($define{'PERL_OBJECT'} || $define{'MULTIPLICITY'}) {
 656     for my $f ($perlvars_h, $intrpvar_h, $thrdvar_h) {
 657         my $glob = readvar($f, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
 658         emit_symbols $glob;
 659     }
 660     # XXX AIX seems to want the perlvars.h symbols, for some reason
 661     if ($PLATFORM eq 'aix') {
 662         my $glob = readvar($perlvars_h);
 663         emit_symbols $glob;
 664     }
 665 }
 666 else {
 667     unless ($define{'PERL_GLOBAL_STRUCT'}) {
 668         my $glob = readvar($perlvars_h);
 669         emit_symbols $glob;
 670     }
 671     unless ($define{'MULTIPLICITY'}) {
 672         my $glob = readvar($intrpvar_h);
 673         emit_symbols $glob;
 674     }
 675     unless ($define{'MULTIPLICITY'} || $define{'USE_5005THREADS'}) {
 676         my $glob = readvar($thrdvar_h);
 677         emit_symbols $glob;
 678     }
 679 }
 680
 681 sub try_symbol {
 682     my $symbol = shift;
 683
 684     return if $symbol !~ /^[A-Za-z]/;
 685     return if $symbol =~ /^\#/;
 686     $symbol =~s/\r//g;
 687     chomp($symbol);
 688     return if exists $skip{$symbol};
 689     emit_symbol($symbol);
 690 }
 691
 692 while (<DATA>) {
 693     try_symbol($_);
 694 }
 695
 696 if ($PLATFORM eq 'win32') {
 697     foreach my $symbol (qw(
 698                             setuid
 699                             setgid
 700                             boot_DynaLoader
 701                             Perl_init_os_extras
 702                             Perl_thread_create
 703                             Perl_win32_init
 704                             RunPerl
 705                             win32_errno
 706                             win32_environ
 707                             win32_abort
 708                             win32_fstat
 709                             win32_stat
 710                             win32_pipe
 711                             win32_popen
 712                             win32_pclose
 713                             win32_rename
 714                             win32_setmode
 715                             win32_lseek
 716                             win32_tell
 717                             win32_dup
 718                             win32_dup2
 719                             win32_open
 720                             win32_close
 721                             win32_eof
 722                             win32_read
 723                             win32_write
 724                             win32_spawnvp
 725                             win32_mkdir
 726                             win32_rmdir
 727                             win32_chdir
 728                             win32_flock
 729                             win32_execv
 730                             win32_execvp
 731                             win32_htons
 732                             win32_ntohs
 733                             win32_htonl
 734                             win32_ntohl
 735                             win32_inet_addr
 736                             win32_inet_ntoa
 737                             win32_socket
 738                             win32_bind
 739                             win32_listen
 740                             win32_accept
 741                             win32_connect
 742                             win32_send
 743                             win32_sendto
 744                             win32_recv
 745                             win32_recvfrom
 746                             win32_shutdown
 747                             win32_closesocket
 748                             win32_ioctlsocket
 749                             win32_setsockopt
 750                             win32_getsockopt
 751                             win32_getpeername
 752                             win32_getsockname
 753                             win32_gethostname
 754                             win32_gethostbyname
 755                             win32_gethostbyaddr
 756                             win32_getprotobyname
 757                             win32_getprotobynumber
 758                             win32_getservbyname
 759                             win32_getservbyport
 760                             win32_select
 761                             win32_endhostent
 762                             win32_endnetent
 763                             win32_endprotoent
 764                             win32_endservent
 765                             win32_getnetent
 766                             win32_getnetbyname
 767                             win32_getnetbyaddr
 768                             win32_getprotoent
 769                             win32_getservent
 770                             win32_sethostent
 771                             win32_setnetent
 772                             win32_setprotoent
 773                             win32_setservent
 774                             win32_getenv
 775                             win32_putenv
 776                             win32_perror
 777                             win32_malloc
 778                             win32_calloc
 779                             win32_realloc
 780                             win32_free
 781                             win32_sleep
 782                             win32_times
 783                             win32_access
 784                             win32_alarm
 785                             win32_chmod
 786                             win32_open_osfhandle
 787                             win32_get_osfhandle
 788                             win32_ioctl
 789                             win32_link
 790                             win32_unlink
 791                             win32_utime
 792                             win32_uname
 793                             win32_wait
 794                             win32_waitpid
 795                             win32_kill
 796                             win32_str_os_error
 797                             win32_opendir
 798                             win32_readdir
 799                             win32_telldir
 800                             win32_seekdir
 801                             win32_rewinddir
 802                             win32_closedir
 803                             win32_longpath
 804                             win32_os_id
 805                             win32_getpid
 806                             win32_crypt
 807                             win32_dynaload
 808
 809                             win32_stdin
 810                             win32_stdout
 811                             win32_stderr
 812                             win32_ferror
 813                             win32_feof
 814                             win32_strerror
 815                             win32_fprintf
 816                             win32_printf
 817                             win32_vfprintf
 818                             win32_vprintf
 819                             win32_fread
 820                             win32_fwrite
 821                             win32_fopen
 822                             win32_fdopen
 823                             win32_freopen
 824                             win32_fclose
 825                             win32_fputs
 826                             win32_fputc
 827                             win32_ungetc
 828                             win32_getc
 829                             win32_fileno
 830                             win32_clearerr
 831                             win32_fflush
 832                             win32_ftell
 833                             win32_fseek
 834                             win32_fgetpos
 835                             win32_fsetpos
 836                             win32_rewind
 837                             win32_tmpfile
 838                             win32_setbuf
 839                             win32_setvbuf
 840                             win32_flushall
 841                             win32_fcloseall
 842                             win32_fgets
 843                             win32_gets
 844                             win32_fgetc
 845                             win32_putc
 846                             win32_puts
 847                             win32_getchar
 848                             win32_putchar
 849                            ))
 850     {
 851         try_symbol($symbol);
 852     }
 853 }
 854 elsif ($PLATFORM eq 'os2') {
 855     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
 856     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
 857     close MAP or die 'Cannot close miniperl.map';
 858
 859     @missing = grep { !exists $mapped{$_} and !exists $bincompat5005{$_} }
 860                     keys %export;
 861     delete $export{$_} foreach @missing;
 862 }
 863 elsif ($PLATFORM eq 'MacOS') {
 864     open MACSYMS, 'macperl.sym' or die 'Cannot read macperl.sym';
 865
 866     while (<MACSYMS>) {
 867         try_symbol($_);
 868     }
 869
 870     close MACSYMS;
 871 }
 872
 873 # Now all symbols should be defined because
 874 # next we are going to output them.
 875
 876 foreach my $symbol (sort keys %export) {
 877     output_symbol($symbol);
 878 }
 879
 880 sub emit_symbol {
 881     my $symbol = shift;
 882     chomp($symbol);
 883     $export{$symbol} = 1;
 884 }
 885
 886 sub output_symbol {
 887     my $symbol = shift;
 888     $symbol = $bincompat5005{$symbol}
 889         if $define{PERL_BINCOMPAT_5005} and $symbol =~ /^($bincompat5005)$/;
 890     if ($PLATFORM eq 'win32') {
 891         $symbol = "_$symbol" if $CCTYPE eq 'BORLAND';
 892         print "\t$symbol\n";
 893 # XXX: binary compatibility between compilers is an exercise
 894 # in frustration :-(
 895 #        if ($CCTYPE eq "BORLAND") {
 896 #           # workaround Borland quirk by exporting both the straight
 897 #           # name and a name with leading underscore.  Note the
 898 #           # alias *must* come after the symbol itself, if both
 899 #           # are to be exported. (Linker bug?)
 900 #           print "\t_$symbol\n";
 901 #           print "\t$symbol = _$symbol\n";
 902 #       }
 903 #       elsif ($CCTYPE eq 'GCC') {
 904 #           # Symbols have leading _ whole process is $%@"% slow
 905 #           # so skip aliases for now
 906 #           nprint "\t$symbol\n";
 907 #       }
 908 #       else {
 909 #           # for binary coexistence, export both the symbol and
 910 #           # alias with leading underscore
 911 #           print "\t$symbol\n";
 912 #           print "\t_$symbol = $symbol\n";
 913 #       }
 914     }
 915     elsif ($PLATFORM eq 'os2') {
 916         print qq(    "$symbol"\n);
 917     }
 918     elsif ($PLATFORM eq 'aix' || $PLATFORM eq 'MacOS') {
 919         print "$symbol\n";
 920     }
 921 }
 922
 923 1;
 924 __DATA__
 925 # extra globals not included above.
 926 perl_alloc
 927 perl_alloc_using
 928 perl_clone
 929 perl_clone_using
 930 perl_construct
 931 perl_destruct
 932 perl_free
 933 perl_parse
 934 perl_run
 935 PerlIO_define_layer
 936 PerlIOBuf_set_ptrcnt
 937 PerlIOBuf_get_cnt
 938 PerlIOBuf_get_ptr
 939 PerlIOBuf_bufsiz
 940 PerlIOBase_clearerr
 941 PerlIOBase_setlinebuf
 942 PerlIOBase_pushed
 943 PerlIOBase_read
 944 PerlIOBase_unread
 945 PerlIOBase_error
 946 PerlIOBase_eof
 947 PerlIOBuf_tell
 948 PerlIOBuf_seek
 949 PerlIOBuf_write
 950 PerlIOBuf_unread
 951 PerlIOBuf_read
 952 PerlIOBuf_open
 953 PerlIOBase_fileno
 954 PerlIOBuf_pushed
 955 PerlIOBuf_fill
 956 PerlIOBuf_flush
 957 PerlIOBase_close
 958 PerlIO_define_layer
 959 PerlIO_pending
 960 PerlIO_unread
 961 PerlIO_push
 962 PerlIO_allocate
 963 PerlIO_arg_fetch
 964 PerlIO_apply_layers
 965 perlsio_binmode
 966 PerlIO_binmode
 967 PerlIO_init
 968 PerlIO_tmpfile
 969 PerlIO_setpos
 970 PerlIO_getpos
 971 PerlIO_vsprintf
 972 PerlIO_sprintf