makedef.pl

   1 #./perl -w
   2 #
   3 # Create the export list for perl.
   4 #
   5 # Needed by WIN32 and OS/2 for creating perl.dll,
   6 # and by AIX for creating libperl.a when -Duseshrplib is in effect,
   7 # and by VMS for creating perlshr.exe.
   8 #
   9 # Reads from information stored in
  10 #
  11 #    %Config::Config (ie config.sh)
  12 #    config.h
  13 #    embed.fnc
  14 #    globvar.sym
  15 #    intrpvar.h
  16 #    miniperl.map (on OS/2)
  17 #    perl5.def    (on OS/2; this is the old version of the file being made)
  18 #    perlio.sym
  19 #    perlvars.h
  20 #    regen/opcodes
  21 #
  22 # plus long lists of function names hard-coded directly in this script.
  23 #
  24 # Writes the result to STDOUT.
  25 #
  26 # Normally this script is invoked from a makefile (e.g. win32/Makefile),
  27 # which redirects STDOUT to a suitable file, such as:
  28 #
  29 #    perl5.def   OS/2
  30 #    perldll.def Windows
  31 #    perl.exp    AIX
  32 #    perl.imp    NetWare
  33 #    makedef.lis VMS
  34
  35 my $fold;
  36 my %ARGS;
  37 my %define;
  38
  39 BEGIN {
  40     BEGIN { unshift @INC, "lib" }
  41     use Config;
  42     use strict;
  43
  44     %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
  45
  46     sub process_cc_flags {
  47         foreach (map {split /\s+/, $_} @_) {
  48             $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
  49         }
  50     }
  51
  52     while (@ARGV) {
  53         my $flag = shift;
  54         if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
  55             process_cc_flags($1);
  56         } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
  57             $ARGS{$1} = $2;
  58         } elsif ($flag eq '--sort-fold') {
  59             ++$fold;
  60         }
  61     }
  62     my @PLATFORM = qw(aix win32 wince os2 netware vms test);
  63     my %PLATFORM;
  64     @PLATFORM{@PLATFORM} = ();
  65
  66     die "PLATFORM undefined, must be one of: @PLATFORM\n"
  67         unless defined $ARGS{PLATFORM};
  68     die "PLATFORM must be one of: @PLATFORM\n"
  69         unless exists $PLATFORM{$ARGS{PLATFORM}};
  70 }
  71 use constant PLATFORM => $ARGS{PLATFORM};
  72
  73 require "./$ARGS{TARG_DIR}regen/embed_lib.pl";
  74
  75 # Is the following guard strictly necessary? Added during refactoring
  76 # to keep the same behaviour when merging other code into here.
  77 process_cc_flags(@Config{qw(ccflags optimize)})
  78     if $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'wince'
  79     && $ARGS{PLATFORM} ne 'netware';
  80
  81 # Add the compile-time options that miniperl was built with to %define.
  82 # On Win32 these are not the same options as perl itself will be built
  83 # with since miniperl is built with a canned config (one of the win32/
  84 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
  85 # but they do include some #define's that are hard-coded in various
  86 # source files and header files and don't include any BUILDOPT's that
  87 # the user might have chosen to disable because the canned configs are
  88 # minimal configs that don't include any of those options.
  89
  90 #don't use the host Perl's -V defines for the WinCE Perl
  91 if($ARGS{PLATFORM} ne 'wince') {
  92     my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
  93     print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
  94     $define{$_} = 1 foreach @options;
  95 }
  96
  97 my %exportperlmalloc =
  98     (
  99        Perl_malloc              =>      "malloc",
 100        Perl_mfree               =>      "free",
 101        Perl_realloc             =>      "realloc",
 102        Perl_calloc              =>      "calloc",
 103     );
 104
 105 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
 106
 107 my $config_h = 'config.h';
 108 open(CFG, '<', $config_h) || die "Cannot open $config_h: $!\n";
 109 while (<CFG>) {
 110     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
 111                                            |KILL_BY_SIGPRC
 112                                            |(?:PERL|USE|HAS)_\w+)\b/x;
 113 }
 114 close(CFG);
 115
 116 # perl.h logic duplication begins
 117
 118 if ($define{USE_ITHREADS}) {
 119     if (!$define{MULTIPLICITY}) {
 120         $define{MULTIPLICITY} = 1;
 121     }
 122 }
 123
 124 $define{PERL_IMPLICIT_CONTEXT} ||=
 125     $define{USE_ITHREADS} ||
 126     $define{MULTIPLICITY} ;
 127
 128 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'netware') {
 129     $define{USE_REENTRANT_API} = 1;
 130 }
 131
 132 if (! $define{NO_LOCALE}) {
 133     if ( ! $define{NO_POSIX_2008_LOCALE}
 134         && $define{HAS_NEWLOCALE}
 135         && $define{HAS_USELOCALE}
 136         && $define{HAS_DUPLOCALE}
 137         && $define{HAS_FREELOCALE})
 138     {
 139         $define{HAS_POSIX_2008_LOCALE} = 1;
 140         $define{USE_LOCALE} = 1;
 141     }
 142     elsif ($define{HAS_SETLOCALE}) {
 143         $define{USE_LOCALE} = 1;
 144     }
 145 }
 146
 147 my $cctype = $ARGS{CCTYPE} =~ s/MSVC//r;
 148 if (! $define{HAS_SETLOCALE} && $define{HAS_POSIX_2008_LOCALE}) {
 149     $define{USE_POSIX_2008_LOCALE} = 1;
 150     $define{USE_THREAD_SAFE_LOCALE} = 1;
 151 }
 152 elsif (   ($define{USE_ITHREADS} || $define{USE_THREAD_SAFE_LOCALE})
 153        && (    $define{HAS_POSIX_2008_LOCALE}
 154            || ($ARGS{PLATFORM} eq 'win32' && (   $cctype !~ /\D/
 155                                               && $cctype >= 80)))
 156        && ! $define{NO_THREAD_SAFE_LOCALE})
 157 {
 158     $define{USE_THREAD_SAFE_LOCALE} = 1 unless $define{USE_THREAD_SAFE_LOCALE};
 159     $define{USE_POSIX_2008_LOCALE} = 1 if $define{HAS_POSIX_2008_LOCALE};
 160 }
 161
 162 if (   $ARGS{PLATFORM} eq 'win32'
 163     && $define{USE_THREAD_SAFE_LOCALE}
 164     && $cctype < 140)
 165 {
 166     $define{TS_W32_BROKEN_LOCALECONV} = 1;
 167 }
 168
 169 # perl.h logic duplication ends
 170
 171 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
 172      unless $ARGS{PLATFORM} eq 'test';
 173
 174 my $sym_ord = 0;
 175 my %ordinal;
 176
 177 if ($ARGS{PLATFORM} eq 'os2') {
 178     if (open my $fh, '<', 'perl5.def') {
 179       while (<$fh>) {
 180         last if /^\s*EXPORTS\b/;
 181       }
 182       while (<$fh>) {
 183         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 184         # This allows skipping ordinals which were used in older versions
 185         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 186       }
 187       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 188     }
 189 }
 190
 191 my %skip;
 192 # All platforms export boot_DynaLoader unconditionally.
 193 my %export = ( boot_DynaLoader => 1 );
 194
 195 sub try_symbols {
 196     foreach my $symbol (@_) {
 197         ++$export{$symbol} unless exists $skip{$symbol};
 198     }
 199 }
 200
 201 sub readvar {
 202     # $hash is the hash that we're adding to. For one of our callers, it will
 203     # actually be the skip hash but that doesn't affect the intent of what
 204     # we're doing, as in that case we skip adding something to the skip hash
 205     # for the second time.
 206
 207     my $file = $ARGS{TARG_DIR} . shift;
 208     my $hash = shift;
 209     my $proc = shift;
 210     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
 211
 212     while (<$vars>) {
 213         # All symbols have a Perl_ prefix because that's what embed.h sticks
 214         # in front of them.  The A?I?S?C? is strictly speaking wrong.
 215         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
 216
 217         my $var = "PL_$3";
 218         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
 219         ++$hash->{$symbol} unless exists $skip{$var};
 220     }
 221 }
 222
 223 if ($ARGS{PLATFORM} ne 'os2') {
 224     ++$skip{$_} foreach qw(
 225                      PL_cryptseen
 226                      PL_opsave
 227                      Perl_GetVars
 228                      Perl_dump_fds
 229                      Perl_my_bcopy
 230                      Perl_my_bzero
 231                      Perl_my_chsize
 232                      Perl_my_htonl
 233                      Perl_my_memcmp
 234                      Perl_my_memset
 235                      Perl_my_ntohl
 236                      Perl_my_swap
 237                          );
 238     if ($ARGS{PLATFORM} eq 'vms') {
 239         ++$skip{PL_statusvalue_posix};
 240         # This is a wrapper if we have symlink, not a replacement
 241         # if we don't.
 242         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
 243     } else {
 244         ++$skip{PL_statusvalue_vms};
 245         ++$skip{PL_perllib_sep};
 246         if ($ARGS{PLATFORM} ne 'aix') {
 247             ++$skip{$_} foreach qw(
 248                                 PL_DBcv
 249                                 PL_generation
 250                                 PL_lastgotoprobe
 251                                 PL_modcount
 252                                 main
 253                                  );
 254         }
 255     }
 256 }
 257
 258 if ($ARGS{PLATFORM} ne 'vms') {
 259     # VMS does its own thing for these symbols.
 260     ++$skip{$_} foreach qw(
 261                         PL_sig_handlers_initted
 262                         PL_sig_ignoring
 263                         PL_sig_defaulting
 264                          );
 265     if ($ARGS{PLATFORM} ne 'win32') {
 266         ++$skip{$_} foreach qw(
 267                             Perl_do_spawn
 268                             Perl_do_spawn_nowait
 269                             Perl_do_aspawn
 270                              );
 271     }
 272 }
 273
 274 if ($ARGS{PLATFORM} ne 'win32') {
 275     ++$skip{$_} foreach qw(
 276                     Perl_my_setlocale
 277                          );
 278 }
 279
 280 unless ($define{UNLINK_ALL_VERSIONS}) {
 281     ++$skip{Perl_unlnk};
 282 }
 283
 284 unless ($define{'DEBUGGING'}) {
 285     ++$skip{$_} foreach qw(
 286                     Perl_debop
 287                     Perl_debprofdump
 288                     Perl_debstack
 289                     Perl_debstackptrs
 290                     Perl_pad_sv
 291                     Perl_pad_setsv
 292                     Perl__setlocale_debug_string
 293                     Perl_set_padlist
 294                     Perl_hv_assert
 295                     PL_watchaddr
 296                     PL_watchok
 297                          );
 298 }
 299
 300 if ($define{'PERL_IMPLICIT_SYS'}) {
 301     ++$skip{$_} foreach qw(
 302                     Perl_my_popen
 303                     Perl_my_pclose
 304                          );
 305     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
 306     ++$export{perl_clone_host} if $define{USE_ITHREADS};
 307 }
 308 else {
 309     ++$skip{$_} foreach qw(
 310                     PL_Mem
 311                     PL_MemShared
 312                     PL_MemParse
 313                     PL_Env
 314                     PL_StdIO
 315                     PL_LIO
 316                     PL_Dir
 317                     PL_Sock
 318                     PL_Proc
 319                     perl_alloc_using
 320                     perl_clone_using
 321                          );
 322 }
 323
 324 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
 325     ++$skip{Perl_sv_setsv_cow};
 326 }
 327
 328 unless ($define{PERL_SAWAMPERSAND}) {
 329     ++$skip{PL_sawampersand};
 330 }
 331
 332 unless ($define{'USE_REENTRANT_API'}) {
 333     ++$skip{PL_reentrant_buffer};
 334 }
 335
 336 if ($define{'MYMALLOC'}) {
 337     try_symbols(qw(
 338                     Perl_dump_mstats
 339                     Perl_get_mstats
 340                     Perl_strdup
 341                     Perl_putenv
 342                     MallocCfg_ptr
 343                     MallocCfgP_ptr
 344                     ));
 345     unless ($define{USE_ITHREADS}) {
 346         ++$skip{PL_malloc_mutex}
 347     }
 348 }
 349 else {
 350     ++$skip{$_} foreach qw(
 351                     PL_malloc_mutex
 352                     Perl_dump_mstats
 353                     Perl_get_mstats
 354                     MallocCfg_ptr
 355                     MallocCfgP_ptr
 356                          );
 357 }
 358
 359 if ($define{'PERL_USE_SAFE_PUTENV'}) {
 360     ++$skip{PL_use_safe_putenv};
 361 }
 362
 363 unless ($define{'USE_ITHREADS'}) {
 364     ++$skip{PL_thr_key};
 365     ++$skip{PL_user_prop_mutex};
 366     ++$skip{PL_user_def_props_aTHX};
 367 }
 368
 369 # USE_5005THREADS symbols. Kept as reference for easier removal
 370 ++$skip{$_} foreach qw(
 371                     PL_sv_mutex
 372                     PL_strtab_mutex
 373                     PL_svref_mutex
 374                     PL_cred_mutex
 375                     PL_eval_mutex
 376                     PL_fdpid_mutex
 377                     PL_sv_lock_mutex
 378                     PL_eval_cond
 379                     PL_eval_owner
 380                     PL_threads_mutex
 381                     PL_nthreads
 382                     PL_nthreads_cond
 383                     PL_threadnum
 384                     PL_threadsv_names
 385                     PL_thrsv
 386                     PL_vtbl_mutex
 387                     Perl_condpair_magic
 388                     Perl_new_struct_thread
 389                     Perl_per_thread_magicals
 390                     Perl_thread_create
 391                     Perl_find_threadsv
 392                     Perl_unlock_condpair
 393                     Perl_magic_mutexfree
 394                     Perl_sv_lock
 395                      );
 396
 397 unless ($define{'USE_ITHREADS'}) {
 398     ++$skip{$_} foreach qw(
 399                     PL_keyword_plugin_mutex
 400                     PL_check_mutex
 401                     PL_op_mutex
 402                     PL_regex_pad
 403                     PL_regex_padav
 404                     PL_dollarzero_mutex
 405                     PL_hints_mutex
 406                     PL_locale_mutex
 407                     PL_lc_numeric_mutex
 408                     PL_lc_numeric_mutex_depth
 409                     PL_my_ctx_mutex
 410                     PL_perlio_mutex
 411                     PL_stashpad
 412                     PL_stashpadix
 413                     PL_stashpadmax
 414                     Perl_alloccopstash
 415                     Perl_allocfilegv
 416                     Perl_clone_params_del
 417                     Perl_clone_params_new
 418                     Perl_parser_dup
 419                     Perl_dirp_dup
 420                     Perl_cx_dup
 421                     Perl_si_dup
 422                     Perl_any_dup
 423                     Perl_ss_dup
 424                     Perl_fp_dup
 425                     Perl_gp_dup
 426                     Perl_he_dup
 427                     Perl_mg_dup
 428                     Perl_re_dup_guts
 429                     Perl_sv_dup
 430                     Perl_sv_dup_inc
 431                     Perl_rvpv_dup
 432                     Perl_hek_dup
 433                     Perl_sys_intern_dup
 434                     perl_clone
 435                     perl_clone_using
 436                     Perl_stashpv_hvname_match
 437                     Perl_regdupe_internal
 438                     Perl_newPADOP
 439                          );
 440 }
 441
 442 if (      $define{NO_LOCALE}
 443     || (! $define{USE_ITHREADS} && ! $define{USE_THREAD_SAFE_LOCALE}))
 444 {
 445     ++$skip{$_} foreach qw(
 446         PL_C_locale_obj
 447         PL_curlocales
 448     );
 449 }
 450
 451 unless ( $define{'HAS_NEWLOCALE'}
 452     &&   $define{'HAS_FREELOCALE'}
 453     &&   $define{'HAS_USELOCALE'}
 454     && ! $define{'NO_POSIX_2008_LOCALE'})
 455 {
 456     ++$skip{$_} foreach qw(
 457         PL_C_locale_obj
 458         PL_underlying_numeric_obj
 459     );
 460 }
 461
 462 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 463     ++$skip{$_} foreach qw(
 464                     PL_my_cxt_index
 465                     PL_my_cxt_list
 466                     PL_my_cxt_size
 467                     PL_my_cxt_keys
 468                     PL_my_cxt_keys_size
 469                     Perl_croak_nocontext
 470                     Perl_die_nocontext
 471                     Perl_deb_nocontext
 472                     Perl_form_nocontext
 473                     Perl_load_module_nocontext
 474                     Perl_mess_nocontext
 475                     Perl_warn_nocontext
 476                     Perl_warner_nocontext
 477                     Perl_newSVpvf_nocontext
 478                     Perl_sv_catpvf_nocontext
 479                     Perl_sv_setpvf_nocontext
 480                     Perl_sv_catpvf_mg_nocontext
 481                     Perl_sv_setpvf_mg_nocontext
 482                     Perl_my_cxt_init
 483                     Perl_my_cxt_index
 484                          );
 485 }
 486
 487 if ($define{USE_THREAD_SAFE_LOCALE}) {
 488     ++$skip{PL_lc_numeric_mutex};
 489     ++$skip{PL_lc_numeric_mutex_depth};
 490     if (! $define{TS_W32_BROKEN_LOCALECONV}) {
 491         ++$skip{PL_locale_mutex};
 492     }
 493 }
 494
 495 unless ($define{'USE_DTRACE'}) {
 496     ++$skip{$_} foreach qw(
 497                     Perl_dtrace_probe_call
 498                     Perl_dtrace_probe_load
 499                     Perl_dtrace_probe_op
 500                     Perl_dtrace_probe_phase
 501                 );
 502 }
 503
 504 unless ($define{'PERL_NEED_APPCTX'}) {
 505     ++$skip{PL_appctx};
 506 }
 507
 508 unless ($define{'PERL_NEED_TIMESBASE'}) {
 509     ++$skip{PL_timesbase};
 510 }
 511
 512 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 513     ++$skip{PL_sv_serial};
 514 }
 515
 516 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 517     ++$skip{PL_dumper_fd};
 518 }
 519
 520 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 521     ++$skip{Perl_gv_SVadd};
 522 }
 523
 524 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 525     ++$skip{PL_pidstatus};
 526 }
 527
 528 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 529     ++$skip{PL_memory_debug_header};
 530 }
 531
 532 unless ($define{'MULTIPLICITY'}) {
 533     ++$skip{$_} foreach qw(
 534                     PL_interp_size
 535                     PL_interp_size_5_18_0
 536                     PL_sv_yes
 537                     PL_sv_undef
 538                     PL_sv_no
 539                     PL_sv_zero
 540                          );
 541 }
 542
 543 unless ($define{'PERL_GLOBAL_STRUCT'}) {
 544     ++$skip{PL_global_struct_size};
 545 }
 546
 547 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
 548     ++$skip{$_} foreach qw(
 549                     PL_my_cxt_keys
 550                     PL_my_cxt_keys_size
 551                     Perl_my_cxt_index
 552                          );
 553 }
 554
 555 unless ($define{HAS_MMAP}) {
 556     ++$skip{PL_mmap_page_size};
 557 }
 558
 559 if ($define{HAS_SIGACTION}) {
 560     ++$skip{PL_sig_trapped};
 561
 562     if ($ARGS{PLATFORM} eq 'vms') {
 563         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
 564         ++$skip{PL_sig_ignoring};
 565         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
 566     }
 567 }
 568
 569 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
 570     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
 571     ++$skip{Perl_csighandler_init};
 572     ++$skip{Perl_my_kill};
 573     ++$skip{Perl_sig_to_vmscondition};
 574     ++$skip{PL_sig_defaulting};
 575     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
 576 }
 577
 578 if ($define{'HAS_STRNLEN'})
 579 {
 580     ++$skip{Perl_my_strnlen};
 581 }
 582
 583 unless ($define{USE_LOCALE_COLLATE}) {
 584     ++$skip{$_} foreach qw(
 585                     PL_collation_ix
 586                     PL_collation_name
 587                     PL_collation_standard
 588                     PL_collxfrm_base
 589                     PL_collxfrm_mult
 590                     Perl_sv_collxfrm
 591                     Perl_sv_collxfrm_flags
 592                     PL_strxfrm_NUL_replacement
 593                     PL_strxfrm_is_behaved
 594                     PL_strxfrm_max_cp
 595                          );
 596 }
 597
 598 unless ($define{USE_LOCALE_NUMERIC}) {
 599     ++$skip{$_} foreach qw(
 600                     PL_numeric_local
 601                     PL_numeric_name
 602                     PL_numeric_radix_sv
 603                     PL_numeric_standard
 604                     PL_numeric_underlying
 605                     PL_numeric_underlying_is_standard
 606                     PL_underlying_numeric_obj
 607                          );
 608 }
 609
 610 unless ($define{'USE_C_BACKTRACE'}) {
 611     ++$skip{Perl_get_c_backtrace_dump};
 612     ++$skip{Perl_dump_c_backtrace};
 613 }
 614
 615 unless ($define{HAVE_INTERP_INTERN}) {
 616     ++$skip{$_} foreach qw(
 617                     Perl_sys_intern_clear
 618                     Perl_sys_intern_dup
 619                     Perl_sys_intern_init
 620                     PL_sys_intern
 621                          );
 622 }
 623
 624 if ($define{HAS_SIGNBIT}) {
 625     ++$skip{Perl_signbit};
 626 }
 627
 628 if ($define{'PERL_GLOBAL_STRUCT'}) {
 629     readvar('perlvars.h', \%skip);
 630     # This seems like the least ugly way to cope with the fact that PL_sh_path
 631     # is mentioned in perlvar.h and globvar.sym, and always exported.
 632     delete $skip{PL_sh_path};
 633     ++$export{Perl_GetVars};
 634     try_symbols(qw(PL_Vars PL_VarsPtr))
 635       unless $ARGS{CCTYPE} eq 'GCC' || $define{PERL_GLOBAL_STRUCT_PRIVATE};
 636 } else {
 637     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
 638 }
 639
 640 ++$skip{PL_op_exec_cnt}
 641     unless $define{PERL_TRACE_OPS};
 642
 643 ++$skip{PL_hash_chars}
 644     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
 645
 646 # functions from *.sym files
 647
 648 my @syms = qw(globvar.sym);
 649
 650 # Symbols that are the public face of the PerlIO layers implementation
 651 # These are in _addition to_ the public face of the abstraction
 652 # and need to be exported to allow XS modules to implement layers
 653 my @layer_syms = qw(
 654                     PerlIOBase_binmode
 655                     PerlIOBase_clearerr
 656                     PerlIOBase_close
 657                     PerlIOBase_dup
 658                     PerlIOBase_eof
 659                     PerlIOBase_error
 660                     PerlIOBase_fileno
 661                     PerlIOBase_open
 662                     PerlIOBase_noop_fail
 663                     PerlIOBase_noop_ok
 664                     PerlIOBase_popped
 665                     PerlIOBase_pushed
 666                     PerlIOBase_read
 667                     PerlIOBase_setlinebuf
 668                     PerlIOBase_unread
 669                     PerlIOBuf_bufsiz
 670                     PerlIOBuf_close
 671                     PerlIOBuf_dup
 672                     PerlIOBuf_fill
 673                     PerlIOBuf_flush
 674                     PerlIOBuf_get_base
 675                     PerlIOBuf_get_cnt
 676                     PerlIOBuf_get_ptr
 677                     PerlIOBuf_open
 678                     PerlIOBuf_popped
 679                     PerlIOBuf_pushed
 680                     PerlIOBuf_read
 681                     PerlIOBuf_seek
 682                     PerlIOBuf_set_ptrcnt
 683                     PerlIOBuf_tell
 684                     PerlIOBuf_unread
 685                     PerlIOBuf_write
 686                     PerlIO_allocate
 687                     PerlIO_apply_layera
 688                     PerlIO_apply_layers
 689                     PerlIO_arg_fetch
 690                     PerlIO_debug
 691                     PerlIO_define_layer
 692                     PerlIO_find_layer
 693                     PerlIO_isutf8
 694                     PerlIO_layer_fetch
 695                     PerlIO_list_alloc
 696                     PerlIO_list_free
 697                     PerlIO_modestr
 698                     PerlIO_parse_layers
 699                     PerlIO_pending
 700                     PerlIO_perlio
 701                     PerlIO_pop
 702                     PerlIO_push
 703                     PerlIO_sv_dup
 704                     Perl_PerlIO_clearerr
 705                     Perl_PerlIO_close
 706                     Perl_PerlIO_context_layers
 707                     Perl_PerlIO_eof
 708                     Perl_PerlIO_error
 709                     Perl_PerlIO_fileno
 710                     Perl_PerlIO_fill
 711                     Perl_PerlIO_flush
 712                     Perl_PerlIO_get_base
 713                     Perl_PerlIO_get_bufsiz
 714                     Perl_PerlIO_get_cnt
 715                     Perl_PerlIO_get_ptr
 716                     Perl_PerlIO_read
 717                     Perl_PerlIO_restore_errno
 718                     Perl_PerlIO_save_errno
 719                     Perl_PerlIO_seek
 720                     Perl_PerlIO_set_cnt
 721                     Perl_PerlIO_set_ptrcnt
 722                     Perl_PerlIO_setlinebuf
 723                     Perl_PerlIO_stderr
 724                     Perl_PerlIO_stdin
 725                     Perl_PerlIO_stdout
 726                     Perl_PerlIO_tell
 727                     Perl_PerlIO_unread
 728                     Perl_PerlIO_write
 729 );
 730 if ($ARGS{PLATFORM} eq 'netware') {
 731     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
 732 }
 733
 734 # Export the symbols that make up the PerlIO abstraction, regardless
 735 # of its implementation - read from a file
 736 push @syms, 'perlio.sym';
 737
 738 # PerlIO with layers - export implementation
 739 try_symbols(@layer_syms, 'perlsio_binmode');
 740
 741
 742 unless ($define{'USE_QUADMATH'}) {
 743   ++$skip{Perl_quadmath_format_needed};
 744   ++$skip{Perl_quadmath_format_single};
 745 }
 746
 747 ###############################################################################
 748
 749 # At this point all skip lists should be completed, as we are about to test
 750 # many symbols against them.
 751
 752 {
 753     my %seen;
 754     my ($embed) = setup_embed($ARGS{TARG_DIR});
 755     my $excludedre = $define{'NO_MATHOMS'} ? qr/[xmib]/ : qr/[xmi]/;
 756
 757     foreach (@$embed) {
 758         my ($flags, $retval, $func, @args) = @$_;
 759         next unless $func;
 760         if (($flags =~ /[AX]/ && $flags !~ $excludedre)
 761             || (!$define{'NO_MATHOMS'} && $flags =~ /b/))
 762         {
 763             # public API, so export
 764
 765             # If a function is defined twice, for example before and after
 766             # an #else, only export its name once. Important to do this test
 767             # within the block, as the *first* definition may have flags which
 768             # mean "don't export"
 769             next if $seen{$func}++;
 770             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
 771             $func = "Perl_$func" if ($flags =~ /[pX]/ && $func !~ /^Perl_/);
 772             ++$export{$func} unless exists $skip{$func};
 773         }
 774     }
 775 }
 776
 777 foreach (@syms) {
 778     my $syms = $ARGS{TARG_DIR} . $_;
 779     open my $global, '<', $syms or die "failed to open $syms: $!\n";
 780     while (<$global>) {
 781         next unless /^([A-Za-z].*)/;
 782         my $symbol = "$1";
 783         ++$export{$symbol} unless exists $skip{$symbol};
 784     }
 785 }
 786
 787 # variables
 788
 789 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
 790     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
 791     # XXX AIX seems to want the perlvars.h symbols, for some reason
 792     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
 793         readvar('perlvars.h', \%export);
 794     }
 795 }
 796 else {
 797     unless ($define{'PERL_GLOBAL_STRUCT'}) {
 798         readvar('perlvars.h', \%export);
 799     }
 800     unless ($define{MULTIPLICITY}) {
 801         readvar('intrpvar.h', \%export);
 802     }
 803 }
 804
 805 # Oddities from PerlIO
 806 # All have alternate implementations in perlio.c, so always exist.
 807 # Should they be considered to be part of the API?
 808 try_symbols(qw(
 809                     PerlIO_binmode
 810                     PerlIO_getpos
 811                     PerlIO_init
 812                     PerlIO_setpos
 813                     PerlIO_tmpfile
 814              ));
 815
 816 if ($ARGS{PLATFORM} eq 'win32') {
 817     try_symbols(qw(
 818                                  win32_free_childdir
 819                                  win32_free_childenv
 820                                  win32_get_childdir
 821                                  win32_get_childenv
 822                                  win32_spawnvp
 823                  ));
 824 }
 825
 826 if ($ARGS{PLATFORM} eq 'wince') {
 827     ++$skip{'win32_isatty'}; # commit 4342f4d6df is win32-only
 828 }
 829
 830 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
 831     try_symbols(qw(
 832                             Perl_init_os_extras
 833                             Perl_thread_create
 834                             Perl_win32_init
 835                             Perl_win32_term
 836                             RunPerl
 837                             win32_async_check
 838                             win32_errno
 839                             win32_environ
 840                             win32_abort
 841                             win32_fstat
 842                             win32_stat
 843                             win32_pipe
 844                             win32_popen
 845                             win32_pclose
 846                             win32_rename
 847                             win32_setmode
 848                             win32_chsize
 849                             win32_lseek
 850                             win32_tell
 851                             win32_dup
 852                             win32_dup2
 853                             win32_open
 854                             win32_close
 855                             win32_eof
 856                             win32_isatty
 857                             win32_read
 858                             win32_write
 859                             win32_mkdir
 860                             win32_rmdir
 861                             win32_chdir
 862                             win32_flock
 863                             win32_execv
 864                             win32_execvp
 865                             win32_htons
 866                             win32_ntohs
 867                             win32_htonl
 868                             win32_ntohl
 869                             win32_inet_addr
 870                             win32_inet_ntoa
 871                             win32_socket
 872                             win32_bind
 873                             win32_listen
 874                             win32_accept
 875                             win32_connect
 876                             win32_send
 877                             win32_sendto
 878                             win32_recv
 879                             win32_recvfrom
 880                             win32_shutdown
 881                             win32_closesocket
 882                             win32_ioctlsocket
 883                             win32_setsockopt
 884                             win32_getsockopt
 885                             win32_getpeername
 886                             win32_getsockname
 887                             win32_gethostname
 888                             win32_gethostbyname
 889                             win32_gethostbyaddr
 890                             win32_getprotobyname
 891                             win32_getprotobynumber
 892                             win32_getservbyname
 893                             win32_getservbyport
 894                             win32_select
 895                             win32_endhostent
 896                             win32_endnetent
 897                             win32_endprotoent
 898                             win32_endservent
 899                             win32_getnetent
 900                             win32_getnetbyname
 901                             win32_getnetbyaddr
 902                             win32_getprotoent
 903                             win32_getservent
 904                             win32_sethostent
 905                             win32_setnetent
 906                             win32_setprotoent
 907                             win32_setservent
 908                             win32_getenv
 909                             win32_putenv
 910                             win32_perror
 911                             win32_malloc
 912                             win32_calloc
 913                             win32_realloc
 914                             win32_free
 915                             win32_sleep
 916                             win32_pause
 917                             win32_times
 918                             win32_access
 919                             win32_alarm
 920                             win32_chmod
 921                             win32_open_osfhandle
 922                             win32_get_osfhandle
 923                             win32_ioctl
 924                             win32_link
 925                             win32_unlink
 926                             win32_utime
 927                             win32_gettimeofday
 928                             win32_uname
 929                             win32_wait
 930                             win32_waitpid
 931                             win32_kill
 932                             win32_str_os_error
 933                             win32_opendir
 934                             win32_readdir
 935                             win32_telldir
 936                             win32_seekdir
 937                             win32_rewinddir
 938                             win32_closedir
 939                             win32_longpath
 940                             win32_ansipath
 941                             win32_os_id
 942                             win32_getpid
 943                             win32_crypt
 944                             win32_dynaload
 945                             win32_clearenv
 946                             win32_stdin
 947                             win32_stdout
 948                             win32_stderr
 949                             win32_ferror
 950                             win32_feof
 951                             win32_strerror
 952                             win32_fprintf
 953                             win32_printf
 954                             win32_vfprintf
 955                             win32_vprintf
 956                             win32_fread
 957                             win32_fwrite
 958                             win32_fopen
 959                             win32_fdopen
 960                             win32_freopen
 961                             win32_fclose
 962                             win32_fputs
 963                             win32_fputc
 964                             win32_ungetc
 965                             win32_getc
 966                             win32_fileno
 967                             win32_clearerr
 968                             win32_fflush
 969                             win32_ftell
 970                             win32_fseek
 971                             win32_fgetpos
 972                             win32_fsetpos
 973                             win32_rewind
 974                             win32_tmpfile
 975                             win32_setbuf
 976                             win32_setvbuf
 977                             win32_flushall
 978                             win32_fcloseall
 979                             win32_fgets
 980                             win32_gets
 981                             win32_fgetc
 982                             win32_putc
 983                             win32_puts
 984                             win32_getchar
 985                             win32_putchar
 986                  ));
 987 }
 988 elsif ($ARGS{PLATFORM} eq 'vms') {
 989     try_symbols(qw(
 990                       Perl_cando
 991                       Perl_cando_by_name
 992                       Perl_closedir
 993                       Perl_csighandler_init
 994                       Perl_do_rmdir
 995                       Perl_fileify_dirspec
 996                       Perl_fileify_dirspec_ts
 997                       Perl_fileify_dirspec_utf8
 998                       Perl_fileify_dirspec_utf8_ts
 999                       Perl_flex_fstat
1000                       Perl_flex_lstat
1001                       Perl_flex_stat
1002                       Perl_kill_file
1003                       Perl_my_chdir
1004                       Perl_my_chmod
1005                       Perl_my_crypt
1006                       Perl_my_endpwent
1007                       Perl_my_fclose
1008                       Perl_my_fdopen
1009                       Perl_my_fgetname
1010                       Perl_my_flush
1011                       Perl_my_fwrite
1012                       Perl_my_gconvert
1013                       Perl_my_getenv
1014                       Perl_my_getenv_len
1015                       Perl_my_getpwnam
1016                       Perl_my_getpwuid
1017                       Perl_my_gmtime
1018                       Perl_my_kill
1019                       Perl_my_killpg
1020                       Perl_my_localtime
1021                       Perl_my_mkdir
1022                       Perl_my_sigaction
1023                       Perl_my_symlink
1024                       Perl_my_time
1025                       Perl_my_tmpfile
1026                       Perl_my_trnlnm
1027                       Perl_my_utime
1028                       Perl_my_waitpid
1029                       Perl_opendir
1030                       Perl_pathify_dirspec
1031                       Perl_pathify_dirspec_ts
1032                       Perl_pathify_dirspec_utf8
1033                       Perl_pathify_dirspec_utf8_ts
1034                       Perl_readdir
1035                       Perl_readdir_r
1036                       Perl_rename
1037                       Perl_rmscopy
1038                       Perl_rmsexpand
1039                       Perl_rmsexpand_ts
1040                       Perl_rmsexpand_utf8
1041                       Perl_rmsexpand_utf8_ts
1042                       Perl_seekdir
1043                       Perl_sig_to_vmscondition
1044                       Perl_telldir
1045                       Perl_tounixpath
1046                       Perl_tounixpath_ts
1047                       Perl_tounixpath_utf8
1048                       Perl_tounixpath_utf8_ts
1049                       Perl_tounixspec
1050                       Perl_tounixspec_ts
1051                       Perl_tounixspec_utf8
1052                       Perl_tounixspec_utf8_ts
1053                       Perl_tovmspath
1054                       Perl_tovmspath_ts
1055                       Perl_tovmspath_utf8
1056                       Perl_tovmspath_utf8_ts
1057                       Perl_tovmsspec
1058                       Perl_tovmsspec_ts
1059                       Perl_tovmsspec_utf8
1060                       Perl_tovmsspec_utf8_ts
1061                       Perl_trim_unixpath
1062                       Perl_vms_case_tolerant
1063                       Perl_vms_do_aexec
1064                       Perl_vms_do_exec
1065                       Perl_vms_image_init
1066                       Perl_vms_realpath
1067                       Perl_vmssetenv
1068                       Perl_vmssetuserlnm
1069                       Perl_vmstrnenv
1070                       PerlIO_openn
1071                  ));
1072 }
1073 elsif ($ARGS{PLATFORM} eq 'os2') {
1074     try_symbols(qw(
1075                       ctermid
1076                       get_sysinfo
1077                       Perl_OS2_init
1078                       Perl_OS2_init3
1079                       Perl_OS2_term
1080                       OS2_Perl_data
1081                       dlopen
1082                       dlsym
1083                       dlerror
1084                       dlclose
1085                       dup2
1086                       dup
1087                       my_tmpfile
1088                       my_tmpnam
1089                       my_flock
1090                       my_rmdir
1091                       my_mkdir
1092                       my_getpwuid
1093                       my_getpwnam
1094                       my_getpwent
1095                       my_setpwent
1096                       my_endpwent
1097                       fork_with_resources
1098                       croak_with_os2error
1099                       setgrent
1100                       endgrent
1101                       getgrent
1102                       malloc_mutex
1103                       threads_mutex
1104                       nthreads
1105                       nthreads_cond
1106                       os2_cond_wait
1107                       os2_stat
1108                       os2_execname
1109                       async_mssleep
1110                       msCounter
1111                       InfoTable
1112                       pthread_join
1113                       pthread_create
1114                       pthread_detach
1115                       XS_Cwd_change_drive
1116                       XS_Cwd_current_drive
1117                       XS_Cwd_extLibpath
1118                       XS_Cwd_extLibpath_set
1119                       XS_Cwd_sys_abspath
1120                       XS_Cwd_sys_chdir
1121                       XS_Cwd_sys_cwd
1122                       XS_Cwd_sys_is_absolute
1123                       XS_Cwd_sys_is_relative
1124                       XS_Cwd_sys_is_rooted
1125                       XS_DynaLoader_mod2fname
1126                       XS_File__Copy_syscopy
1127                       Perl_Register_MQ
1128                       Perl_Deregister_MQ
1129                       Perl_Serve_Messages
1130                       Perl_Process_Messages
1131                       init_PMWIN_entries
1132                       PMWIN_entries
1133                       Perl_hab_GET
1134                       loadByOrdinal
1135                       pExtFCN
1136                       os2error
1137                       ResetWinError
1138                       CroakWinError
1139                       PL_do_undump
1140                  ));
1141 }
1142 elsif ($ARGS{PLATFORM} eq 'netware') {
1143     try_symbols(qw(
1144                         Perl_init_os_extras
1145                         Perl_thread_create
1146                         Perl_nw5_init
1147                         RunPerl
1148                         AllocStdPerl
1149                         FreeStdPerl
1150                         do_spawn2
1151                         do_aspawn
1152                         nw_uname
1153                         nw_stdin
1154                         nw_stdout
1155                         nw_stderr
1156                         nw_feof
1157                         nw_ferror
1158                         nw_fopen
1159                         nw_fclose
1160                         nw_clearerr
1161                         nw_getc
1162                         nw_fgets
1163                         nw_fputc
1164                         nw_fputs
1165                         nw_fflush
1166                         nw_ungetc
1167                         nw_fileno
1168                         nw_fdopen
1169                         nw_freopen
1170                         nw_fread
1171                         nw_fwrite
1172                         nw_setbuf
1173                         nw_setvbuf
1174                         nw_vfprintf
1175                         nw_ftell
1176                         nw_fseek
1177                         nw_rewind
1178                         nw_tmpfile
1179                         nw_fgetpos
1180                         nw_fsetpos
1181                         nw_dup
1182                         nw_access
1183                         nw_chmod
1184                         nw_chsize
1185                         nw_close
1186                         nw_dup2
1187                         nw_flock
1188                         nw_isatty
1189                         nw_link
1190                         nw_lseek
1191                         nw_stat
1192                         nw_mktemp
1193                         nw_open
1194                         nw_read
1195                         nw_rename
1196                         nw_setmode
1197                         nw_unlink
1198                         nw_utime
1199                         nw_write
1200                         nw_chdir
1201                         nw_rmdir
1202                         nw_closedir
1203                         nw_opendir
1204                         nw_readdir
1205                         nw_rewinddir
1206                         nw_seekdir
1207                         nw_telldir
1208                         nw_htonl
1209                         nw_htons
1210                         nw_ntohl
1211                         nw_ntohs
1212                         nw_accept
1213                         nw_bind
1214                         nw_connect
1215                         nw_endhostent
1216                         nw_endnetent
1217                         nw_endprotoent
1218                         nw_endservent
1219                         nw_gethostbyaddr
1220                         nw_gethostbyname
1221                         nw_gethostent
1222                         nw_gethostname
1223                         nw_getnetbyaddr
1224                         nw_getnetbyname
1225                         nw_getnetent
1226                         nw_getpeername
1227                         nw_getprotobyname
1228                         nw_getprotobynumber
1229                         nw_getprotoent
1230                         nw_getservbyname
1231                         nw_getservbyport
1232                         nw_getservent
1233                         nw_getsockname
1234                         nw_getsockopt
1235                         nw_inet_addr
1236                         nw_listen
1237                         nw_socket
1238                         nw_recv
1239                         nw_recvfrom
1240                         nw_select
1241                         nw_send
1242                         nw_sendto
1243                         nw_sethostent
1244                         nw_setnetent
1245                         nw_setprotoent
1246                         nw_setservent
1247                         nw_setsockopt
1248                         nw_inet_ntoa
1249                         nw_shutdown
1250                         nw_crypt
1251                         nw_execvp
1252                         nw_kill
1253                         nw_Popen
1254                         nw_Pclose
1255                         nw_Pipe
1256                         nw_times
1257                         nw_waitpid
1258                         nw_getpid
1259                         nw_spawnvp
1260                         nw_os_id
1261                         nw_open_osfhandle
1262                         nw_get_osfhandle
1263                         nw_abort
1264                         nw_sleep
1265                         nw_wait
1266                         nw_dynaload
1267                         nw_strerror
1268                         fnFpSetMode
1269                         fnInsertHashListAddrs
1270                         fnGetHashListAddrs
1271                         Perl_deb
1272                         Perl_sv_setsv
1273                         Perl_sv_catsv
1274                         Perl_sv_catpvn
1275                         Perl_sv_2pv
1276                         nw_freeenviron
1277                         Remove_Thread_Ctx
1278                  ));
1279 }
1280
1281 # When added this code was only run for Win32 and WinCE
1282 # Currently only Win32 links static extensions into the shared library.
1283 # The WinCE makefile doesn't appear to support static extensions, so this code
1284 # can't have any effect there.
1285 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1286 # list of dynamic extensions, and the rules to build them)
1287 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1288 # static extensions with -fPIC, but links them to perl, not libperl.so
1289 # The VMS build scripts don't yet implement static extensions at all.
1290
1291 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1292     # records of type boot_module for statically linked modules (except Dynaloader)
1293     my $static_ext = $Config{static_ext} // "";
1294     $static_ext =~ s/\//__/g;
1295     $static_ext =~ s/\bDynaLoader\b//;
1296     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1297     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1298 }
1299
1300 if ($ARGS{PLATFORM} eq 'os2') {
1301     my (%mapped, @missing);
1302     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1303     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1304     close MAP or die 'Cannot close miniperl.map';
1305
1306     @missing = grep { !exists $mapped{$_} }
1307                     keys %export;
1308     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1309     delete $export{$_} foreach @missing;
1310 }
1311
1312 ###############################################################################
1313
1314 # Now all symbols should be defined because next we are going to output them.
1315
1316 # Start with platform specific headers:
1317
1318 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1319     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1320         : "perl$Config{api_revision}$Config{api_version}";
1321     print "LIBRARY $dll\n";
1322     # The DESCRIPTION module definition file statement is not supported
1323     # by VC7 onwards.
1324     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1325         print "DESCRIPTION 'Perl interpreter'\n";
1326     }
1327     print "EXPORTS\n";
1328 }
1329 elsif ($ARGS{PLATFORM} eq 'os2') {
1330     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1331     $v .= '-thread' if $Config{archname} =~ /-thread/;
1332     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1333     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1334     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1335     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1336     print <<"---EOP---";
1337 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1338 $d
1339 STACKSIZE 32768
1340 CODE LOADONCALL
1341 DATA LOADONCALL NONSHARED MULTIPLE
1342 EXPORTS
1343 ---EOP---
1344 }
1345 elsif ($ARGS{PLATFORM} eq 'aix') {
1346     my $OSVER = `uname -v`;
1347     chop $OSVER;
1348     my $OSREL = `uname -r`;
1349     chop $OSREL;
1350     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1351         print "#! ..\n";
1352     } else {
1353         print "#!\n";
1354     }
1355 }
1356 elsif ($ARGS{PLATFORM} eq 'netware') {
1357         if ($ARGS{FILETYPE} eq 'def') {
1358         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1359         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1360         print "EXPORTS\n";
1361         }
1362 }
1363
1364 # Then the symbols
1365
1366 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1367 foreach my $symbol (@symbols) {
1368     if (PLATFORM eq 'win32' || PLATFORM eq 'wince') {
1369         # Remembering the origin file of each symbol is an alternative to PL_ matching
1370         if (substr($symbol, 0, 3) eq 'PL_') {
1371             print "\t$symbol DATA\n";
1372         }
1373         else {
1374             print "\t$symbol\n";
1375         }
1376     }
1377     elsif (PLATFORM eq 'os2') {
1378         printf qq(    %-31s \@%s\n),
1379           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1380         printf qq(    %-31s \@%s\n),
1381           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1382           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1383           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1384     }
1385     elsif (PLATFORM eq 'netware') {
1386         print "\t$symbol,\n";
1387     } else {
1388         print "$symbol\n";
1389     }
1390 }
1391
1392 # Then platform specific footers.
1393
1394 if ($ARGS{PLATFORM} eq 'os2') {
1395     print <<EOP;
1396     dll_perlmain=main
1397     fill_extLibpath
1398     dir_subst
1399     Perl_OS2_handler_install
1400
1401 ; LAST_ORDINAL=$sym_ord
1402 EOP
1403 }
1404
1405 1;