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