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