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