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 BEGIN { unshift @INC, "lib" }
  36 use Config;
  37 use strict;
  38
  39 my %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
  40
  41 my %define;
  42
  43 my $fold;
  44
  45 sub process_cc_flags {
  46     foreach (map {split /\s+/, $_} @_) {
  47         $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
  48     }
  49 }
  50
  51 while (@ARGV) {
  52     my $flag = shift;
  53     if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
  54         process_cc_flags($1);
  55     } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
  56         $ARGS{$1} = $2;
  57     } elsif ($flag eq '--sort-fold') {
  58         ++$fold;
  59     }
  60 }
  61
  62 require "$ARGS{TARG_DIR}regen/embed_lib.pl";
  63
  64 {
  65     my @PLATFORM = qw(aix win32 wince os2 netware vms test);
  66     my %PLATFORM;
  67     @PLATFORM{@PLATFORM} = ();
  68
  69     die "PLATFORM undefined, must be one of: @PLATFORM\n"
  70         unless defined $ARGS{PLATFORM};
  71     die "PLATFORM must be one of: @PLATFORM\n"
  72         unless exists $PLATFORM{$ARGS{PLATFORM}};
  73 }
  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{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
 111                                            |SPRINTF_RETURNS_STRLEN
 112                                            |KILL_BY_SIGPRC
 113                                            |(?:PERL|USE|HAS)_\w+)\b/x;
 114 }
 115 close(CFG);
 116
 117 # perl.h logic duplication begins
 118
 119 if ($define{USE_ITHREADS}) {
 120     if (!$define{MULTIPLICITY}) {
 121         $define{MULTIPLICITY} = 1;
 122     }
 123 }
 124
 125 $define{PERL_IMPLICIT_CONTEXT} ||=
 126     $define{USE_ITHREADS} ||
 127     $define{MULTIPLICITY} ;
 128
 129 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
 130     $define{USE_REENTRANT_API} = 1;
 131 }
 132
 133 # perl.h logic duplication ends
 134
 135 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
 136      unless $ARGS{PLATFORM} eq 'test';
 137
 138 my $sym_ord = 0;
 139 my %ordinal;
 140
 141 if ($ARGS{PLATFORM} eq 'os2') {
 142     if (open my $fh, '<', 'perl5.def') {
 143       while (<$fh>) {
 144         last if /^\s*EXPORTS\b/;
 145       }
 146       while (<$fh>) {
 147         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 148         # This allows skipping ordinals which were used in older versions
 149         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 150       }
 151       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 152     }
 153 }
 154
 155 my %skip;
 156 # All platforms export boot_DynaLoader unconditionally.
 157 my %export = ( boot_DynaLoader => 1 );
 158
 159 sub try_symbols {
 160     foreach my $symbol (@_) {
 161         ++$export{$symbol} unless exists $skip{$symbol};
 162     }
 163 }
 164
 165 sub readvar {
 166     # $hash is the hash that we're adding to. For one of our callers, it will
 167     # actually be the skip hash but that doesn't affect the intent of what
 168     # we're doing, as in that case we skip adding something to the skip hash
 169     # for the second time.
 170
 171     my $file = $ARGS{TARG_DIR} . shift;
 172     my $hash = shift;
 173     my $proc = shift;
 174     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
 175
 176     while (<$vars>) {
 177         # All symbols have a Perl_ prefix because that's what embed.h sticks
 178         # in front of them.  The A?I?S?C? is strictly speaking wrong.
 179         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
 180
 181         my $var = "PL_$3";
 182         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
 183         ++$hash->{$symbol} unless exists $skip{$var};
 184     }
 185 }
 186
 187 if ($ARGS{PLATFORM} ne 'os2') {
 188     ++$skip{$_} foreach qw(
 189                      PL_cryptseen
 190                      PL_opsave
 191                      Perl_GetVars
 192                      Perl_dump_fds
 193                      Perl_my_bcopy
 194                      Perl_my_bzero
 195                      Perl_my_chsize
 196                      Perl_my_htonl
 197                      Perl_my_memcmp
 198                      Perl_my_memset
 199                      Perl_my_ntohl
 200                      Perl_my_swap
 201                          );
 202     if ($ARGS{PLATFORM} eq 'vms') {
 203         ++$skip{PL_statusvalue_posix};
 204         # This is a wrapper if we have symlink, not a replacement
 205         # if we don't.
 206         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
 207     } else {
 208         ++$skip{PL_statusvalue_vms};
 209         if ($ARGS{PLATFORM} ne 'aix') {
 210             ++$skip{$_} foreach qw(
 211                                 PL_DBcv
 212                                 PL_generation
 213                                 PL_lastgotoprobe
 214                                 PL_modcount
 215                                 PL_timesbuf
 216                                 main
 217                                  );
 218         }
 219     }
 220 }
 221
 222 if ($ARGS{PLATFORM} ne 'vms') {
 223     # VMS does its own thing for these symbols.
 224     ++$skip{$_} foreach qw(
 225                         PL_sig_handlers_initted
 226                         PL_sig_ignoring
 227                         PL_sig_defaulting
 228                          );
 229     if ($ARGS{PLATFORM} ne 'win32') {
 230         ++$skip{$_} foreach qw(
 231                             Perl_do_spawn
 232                             Perl_do_spawn_nowait
 233                             Perl_do_aspawn
 234                              );
 235     }
 236 }
 237
 238 if ($ARGS{PLATFORM} ne 'win32') {
 239     ++$skip{$_} foreach qw(
 240                     Perl_my_setlocale
 241                          );
 242 }
 243
 244 unless ($define{UNLINK_ALL_VERSIONS}) {
 245     ++$skip{Perl_unlnk};
 246 }
 247
 248 unless ($define{'DEBUGGING'}) {
 249     ++$skip{$_} foreach qw(
 250                     Perl_debop
 251                     Perl_debprofdump
 252                     Perl_debstack
 253                     Perl_debstackptrs
 254                     Perl_pad_sv
 255                     Perl_pad_setsv
 256                     Perl_set_padlist
 257                     Perl_hv_assert
 258                     PL_watchaddr
 259                     PL_watchok
 260                     PL_watch_pvx
 261                          );
 262 }
 263
 264 if ($define{'PERL_IMPLICIT_SYS'}) {
 265     ++$skip{$_} foreach qw(
 266                     Perl_my_popen
 267                     Perl_my_pclose
 268                          );
 269     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
 270     ++$export{perl_clone_host} if $define{USE_ITHREADS};
 271 }
 272 else {
 273     ++$skip{$_} foreach qw(
 274                     PL_Mem
 275                     PL_MemShared
 276                     PL_MemParse
 277                     PL_Env
 278                     PL_StdIO
 279                     PL_LIO
 280                     PL_Dir
 281                     PL_Sock
 282                     PL_Proc
 283                     perl_alloc_using
 284                     perl_clone_using
 285                          );
 286 }
 287
 288 unless ($define{'PERL_OLD_COPY_ON_WRITE'}
 289      || $define{'PERL_NEW_COPY_ON_WRITE'}) {
 290     ++$skip{Perl_sv_setsv_cow};
 291 }
 292
 293 unless ($define{PERL_SAWAMPERSAND}) {
 294     ++$skip{PL_sawampersand};
 295 }
 296
 297 unless ($define{'USE_REENTRANT_API'}) {
 298     ++$skip{PL_reentrant_buffer};
 299 }
 300
 301 if ($define{'MYMALLOC'}) {
 302     try_symbols(qw(
 303                     Perl_dump_mstats
 304                     Perl_get_mstats
 305                     Perl_strdup
 306                     Perl_putenv
 307                     MallocCfg_ptr
 308                     MallocCfgP_ptr
 309                     ));
 310     unless ($define{USE_ITHREADS}) {
 311         ++$skip{PL_malloc_mutex}
 312     }
 313 }
 314 else {
 315     ++$skip{$_} foreach qw(
 316                     PL_malloc_mutex
 317                     Perl_dump_mstats
 318                     Perl_get_mstats
 319                     MallocCfg_ptr
 320                     MallocCfgP_ptr
 321                          );
 322 }
 323
 324 if ($define{'PERL_USE_SAFE_PUTENV'}) {
 325     ++$skip{PL_use_safe_putenv};
 326 }
 327
 328 unless ($define{'USE_ITHREADS'}) {
 329     ++$skip{PL_thr_key};
 330 }
 331
 332 # USE_5005THREADS symbols. Kept as reference for easier removal
 333 ++$skip{$_} foreach qw(
 334                     PL_sv_mutex
 335                     PL_strtab_mutex
 336                     PL_svref_mutex
 337                     PL_cred_mutex
 338                     PL_eval_mutex
 339                     PL_fdpid_mutex
 340                     PL_sv_lock_mutex
 341                     PL_eval_cond
 342                     PL_eval_owner
 343                     PL_threads_mutex
 344                     PL_nthreads
 345                     PL_nthreads_cond
 346                     PL_threadnum
 347                     PL_threadsv_names
 348                     PL_thrsv
 349                     PL_vtbl_mutex
 350                     Perl_condpair_magic
 351                     Perl_new_struct_thread
 352                     Perl_per_thread_magicals
 353                     Perl_thread_create
 354                     Perl_find_threadsv
 355                     Perl_unlock_condpair
 356                     Perl_magic_mutexfree
 357                     Perl_sv_lock
 358                      );
 359
 360 unless ($define{'USE_ITHREADS'}) {
 361     ++$skip{$_} foreach qw(
 362                     PL_check_mutex
 363                     PL_op_mutex
 364                     PL_regex_pad
 365                     PL_regex_padav
 366                     PL_dollarzero_mutex
 367                     PL_hints_mutex
 368                     PL_my_ctx_mutex
 369                     PL_perlio_mutex
 370                     PL_stashpad
 371                     PL_stashpadix
 372                     PL_stashpadmax
 373                     Perl_alloccopstash
 374                     Perl_allocfilegv
 375                     Perl_clone_params_del
 376                     Perl_clone_params_new
 377                     Perl_parser_dup
 378                     Perl_dirp_dup
 379                     Perl_cx_dup
 380                     Perl_si_dup
 381                     Perl_any_dup
 382                     Perl_ss_dup
 383                     Perl_fp_dup
 384                     Perl_gp_dup
 385                     Perl_he_dup
 386                     Perl_mg_dup
 387                     Perl_re_dup_guts
 388                     Perl_sv_dup
 389                     Perl_sv_dup_inc
 390                     Perl_rvpv_dup
 391                     Perl_hek_dup
 392                     Perl_sys_intern_dup
 393                     perl_clone
 394                     perl_clone_using
 395                     Perl_stashpv_hvname_match
 396                     Perl_regdupe_internal
 397                     Perl_newPADOP
 398                          );
 399 }
 400
 401 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 402     ++$skip{$_} foreach qw(
 403                     PL_my_cxt_index
 404                     PL_my_cxt_list
 405                     PL_my_cxt_size
 406                     PL_my_cxt_keys
 407                     Perl_croak_nocontext
 408                     Perl_die_nocontext
 409                     Perl_deb_nocontext
 410                     Perl_form_nocontext
 411                     Perl_load_module_nocontext
 412                     Perl_mess_nocontext
 413                     Perl_warn_nocontext
 414                     Perl_warner_nocontext
 415                     Perl_newSVpvf_nocontext
 416                     Perl_sv_catpvf_nocontext
 417                     Perl_sv_setpvf_nocontext
 418                     Perl_sv_catpvf_mg_nocontext
 419                     Perl_sv_setpvf_mg_nocontext
 420                     Perl_my_cxt_init
 421                     Perl_my_cxt_index
 422                          );
 423 }
 424 if ($define{'NO_MATHOMS'}) {
 425     ++$skip{$_} foreach qw(
 426                     ASCII_TO_NEED
 427                     NATIVE_TO_NEED
 428                     Perl_custom_op_desc
 429                     Perl_custom_op_name
 430                     Perl_do_aexec
 431                     Perl_do_binmode
 432                     Perl_do_open
 433                     Perl_do_open9
 434                     Perl_fprintf_nocontext
 435                     Perl_gv_AVadd
 436                     Perl_gv_HVadd
 437                     Perl_gv_IOadd
 438                     Perl_gv_SVadd
 439                     Perl_gv_efullname
 440                     Perl_gv_efullname3
 441                     Perl_gv_fetchmethod
 442                     Perl_gv_fullname
 443                     Perl_gv_fullname3
 444                     Perl_hv_delete
 445                     Perl_hv_delete_ent
 446                     Perl_hv_exists
 447                     Perl_hv_exists_ent
 448                     Perl_hv_fetch
 449                     Perl_hv_fetch_ent
 450                     Perl_hv_iternext
 451                     Perl_hv_magic
 452                     Perl_hv_store
 453                     Perl_hv_store_ent
 454                     Perl_hv_store_flags
 455                     Perl_init_i18nl14n
 456                     Perl_isALNUM_lazy
 457                     Perl_isIDFIRST_lazy
 458                     Perl_is_uni_alnum
 459                     Perl_is_uni_alnum_lc
 460                     Perl_is_uni_alnumc
 461                     Perl_is_uni_alnumc_lc
 462                     Perl_is_uni_alpha
 463                     Perl_is_uni_alpha_lc
 464                     Perl_is_uni_ascii
 465                     Perl_is_uni_ascii_lc
 466                     Perl_is_uni_blank
 467                     Perl_is_uni_blank_lc
 468                     Perl_is_uni_cntrl
 469                     Perl_is_uni_cntrl_lc
 470                     Perl_is_uni_digit
 471                     Perl_is_uni_digit_lc
 472                     Perl_is_uni_graph
 473                     Perl_is_uni_graph_lc
 474                     Perl_is_uni_idfirst
 475                     Perl_is_uni_idfirst_lc
 476                     Perl_is_uni_lower
 477                     Perl_is_uni_lower_lc
 478                     Perl_is_uni_print
 479                     Perl_is_uni_print_lc
 480                     Perl_is_uni_punct
 481                     Perl_is_uni_punct_lc
 482                     Perl_is_uni_space
 483                     Perl_is_uni_space_lc
 484                     Perl_is_uni_upper
 485                     Perl_is_uni_upper_lc
 486                     Perl_is_uni_xdigit
 487                     Perl_is_uni_xdigit_lc
 488                     Perl_is_utf8_alnum
 489                     Perl_is_utf8_alnumc
 490                     Perl_is_utf8_alpha
 491                     Perl_is_utf8_ascii
 492                     Perl_is_utf8_blank
 493                     Perl_is_utf8_char
 494                     Perl_is_utf8_cntrl
 495                     Perl_is_utf8_digit
 496                     Perl_is_utf8_graph
 497                     Perl_is_utf8_idcont
 498                     Perl_is_utf8_idfirst
 499                     Perl_is_utf8_lower
 500                     Perl_is_utf8_mark
 501                     Perl_is_utf8_perl_space
 502                     Perl_is_utf8_perl_word
 503                     Perl_is_utf8_posix_digit
 504                     Perl_is_utf8_print
 505                     Perl_is_utf8_punct
 506                     Perl_is_utf8_space
 507                     Perl_is_utf8_string_loc
 508                     Perl_is_utf8_upper
 509                     Perl_is_utf8_xdigit
 510                     Perl_is_utf8_xidcont
 511                     Perl_is_utf8_xidfirst
 512                     Perl_my_lstat
 513                     Perl_my_stat
 514                     Perl_newAV
 515                     Perl_newHV
 516                     Perl_newIO
 517                     Perl_newSUB
 518                     Perl_pack_cat
 519                     Perl_printf_nocontext
 520                     Perl_ref
 521                     Perl_save_freeop
 522                     Perl_save_freepv
 523                     Perl_save_freesv
 524                     Perl_save_iv
 525                     Perl_save_list
 526                     Perl_save_long
 527                     Perl_save_mortalizesv
 528                     Perl_save_nogv
 529                     Perl_save_op
 530                     Perl_save_re_context
 531                     Perl_sv_2iv
 532                     Perl_sv_2pv
 533                     Perl_sv_2pv_nolen
 534                     Perl_sv_2pvbyte_nolen
 535                     Perl_sv_2pvutf8_nolen
 536                     Perl_sv_2uv
 537                     Perl_sv_catpvn
 538                     Perl_sv_catpvn_mg
 539                     Perl_sv_catsv
 540                     Perl_sv_catsv_mg
 541                     Perl_sv_force_normal
 542                     Perl_sv_insert
 543                     Perl_sv_iv
 544                     Perl_sv_mortalcopy
 545                     Perl_sv_nolocking
 546                     Perl_sv_nounlocking
 547                     Perl_sv_nv
 548                     Perl_sv_pv
 549                     Perl_sv_pvbyte
 550                     Perl_sv_pvbyten
 551                     Perl_sv_pvn
 552                     Perl_sv_pvn_force
 553                     Perl_sv_pvn_nomg
 554                     Perl_sv_pvutf8
 555                     Perl_sv_pvutf8n
 556                     Perl_sv_setsv
 557                     Perl_sv_taint
 558                     Perl_sv_unref
 559                     Perl_sv_usepvn
 560                     Perl_sv_usepvn_mg
 561                     Perl_sv_utf8_upgrade
 562                     Perl_sv_uv
 563                     Perl_to_uni_lower_lc
 564                     Perl_to_uni_title_lc
 565                     Perl_to_uni_upper_lc
 566                     Perl_to_utf8_fold
 567                     Perl_to_utf8_lower
 568                     Perl_to_utf8_title
 569                     Perl_to_utf8_upper
 570                     Perl_unpack_str
 571                     Perl_utf8_to_uvchr
 572                     Perl_utf8_to_uvuni
 573                     Perl_valid_utf8_to_uvuni
 574                          );
 575 }
 576
 577 unless ($define{'PERL_NEED_APPCTX'}) {
 578     ++$skip{PL_appctx};
 579 }
 580
 581 unless ($define{'PERL_NEED_TIMESBASE'}) {
 582     ++$skip{PL_timesbase};
 583 }
 584
 585 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 586     ++$skip{PL_sv_serial};
 587 }
 588
 589 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 590     ++$skip{PL_dumper_fd};
 591 }
 592
 593 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 594     ++$skip{Perl_gv_SVadd};
 595 }
 596
 597 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
 598     ++$skip{Perl_my_sprintf};
 599 }
 600
 601 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 602     ++$skip{PL_pidstatus};
 603 }
 604
 605 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 606     ++$skip{PL_memory_debug_header};
 607 }
 608
 609 unless ($define{'MULTIPLICITY'}) {
 610     ++$skip{$_} foreach qw(
 611                     PL_interp_size
 612                     PL_interp_size_5_18_0
 613                          );
 614 }
 615
 616 unless ($define{'PERL_GLOBAL_STRUCT'}) {
 617     ++$skip{PL_global_struct_size};
 618 }
 619
 620 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
 621     ++$skip{$_} foreach qw(
 622                     PL_my_cxt_keys
 623                     Perl_my_cxt_index
 624                          );
 625 }
 626
 627 unless ($define{HAS_MMAP}) {
 628     ++$skip{PL_mmap_page_size};
 629 }
 630
 631 if ($define{HAS_SIGACTION}) {
 632     ++$skip{PL_sig_trapped};
 633
 634     if ($ARGS{PLATFORM} eq 'vms') {
 635         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
 636         ++$skip{PL_sig_ignoring};
 637         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
 638     }
 639 }
 640
 641 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
 642     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
 643     ++$skip{Perl_csighandler_init};
 644     ++$skip{Perl_my_kill};
 645     ++$skip{Perl_sig_to_vmscondition};
 646     ++$skip{PL_sig_defaulting};
 647     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
 648 }
 649
 650 unless ($define{USE_LOCALE_COLLATE}) {
 651     ++$skip{$_} foreach qw(
 652                     PL_collation_ix
 653                     PL_collation_name
 654                     PL_collation_standard
 655                     PL_collxfrm_base
 656                     PL_collxfrm_mult
 657                     Perl_sv_collxfrm
 658                     Perl_sv_collxfrm_flags
 659                          );
 660 }
 661
 662 unless ($define{USE_LOCALE_NUMERIC}) {
 663     ++$skip{$_} foreach qw(
 664                     PL_numeric_local
 665                     PL_numeric_name
 666                     PL_numeric_radix_sv
 667                     PL_numeric_standard
 668                          );
 669 }
 670
 671 unless ($define{'USE_C_BACKTRACE'}) {
 672     ++$skip{Perl_get_c_backtrace_dump};
 673     ++$skip{Perl_dump_c_backtrace};
 674 }
 675
 676 unless ($define{HAVE_INTERP_INTERN}) {
 677     ++$skip{$_} foreach qw(
 678                     Perl_sys_intern_clear
 679                     Perl_sys_intern_dup
 680                     Perl_sys_intern_init
 681                     PL_sys_intern
 682                          );
 683 }
 684
 685 if ($define{HAS_SIGNBIT}) {
 686     ++$skip{Perl_signbit};
 687 }
 688
 689 if ($define{'PERL_GLOBAL_STRUCT'}) {
 690     readvar('perlvars.h', \%skip);
 691     # This seems like the least ugly way to cope with the fact that PL_sh_path
 692     # is mentioned in perlvar.h and globvar.sym, and always exported.
 693     delete $skip{PL_sh_path};
 694     ++$export{Perl_GetVars};
 695     try_symbols(qw(PL_Vars PL_VarsPtr))
 696       unless $ARGS{CCTYPE} eq 'GCC' || $define{PERL_GLOBAL_STRUCT_PRIVATE};
 697 } else {
 698     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
 699 }
 700
 701 ++$skip{PL_op_exec_cnt}
 702     unless $define{PERL_TRACE_OPS};
 703
 704 # functions from *.sym files
 705
 706 my @syms = qw(globvar.sym);
 707
 708 # Symbols that are the public face of the PerlIO layers implementation
 709 # These are in _addition to_ the public face of the abstraction
 710 # and need to be exported to allow XS modules to implement layers
 711 my @layer_syms = qw(
 712                     PerlIOBase_binmode
 713                     PerlIOBase_clearerr
 714                     PerlIOBase_close
 715                     PerlIOBase_dup
 716                     PerlIOBase_eof
 717                     PerlIOBase_error
 718                     PerlIOBase_fileno
 719                     PerlIOBase_open
 720                     PerlIOBase_noop_fail
 721                     PerlIOBase_noop_ok
 722                     PerlIOBase_popped
 723                     PerlIOBase_pushed
 724                     PerlIOBase_read
 725                     PerlIOBase_setlinebuf
 726                     PerlIOBase_unread
 727                     PerlIOBuf_bufsiz
 728                     PerlIOBuf_close
 729                     PerlIOBuf_dup
 730                     PerlIOBuf_fill
 731                     PerlIOBuf_flush
 732                     PerlIOBuf_get_base
 733                     PerlIOBuf_get_cnt
 734                     PerlIOBuf_get_ptr
 735                     PerlIOBuf_open
 736                     PerlIOBuf_popped
 737                     PerlIOBuf_pushed
 738                     PerlIOBuf_read
 739                     PerlIOBuf_seek
 740                     PerlIOBuf_set_ptrcnt
 741                     PerlIOBuf_tell
 742                     PerlIOBuf_unread
 743                     PerlIOBuf_write
 744                     PerlIO_allocate
 745                     PerlIO_apply_layera
 746                     PerlIO_apply_layers
 747                     PerlIO_arg_fetch
 748                     PerlIO_debug
 749                     PerlIO_define_layer
 750                     PerlIO_find_layer
 751                     PerlIO_isutf8
 752                     PerlIO_layer_fetch
 753                     PerlIO_list_alloc
 754                     PerlIO_list_free
 755                     PerlIO_modestr
 756                     PerlIO_parse_layers
 757                     PerlIO_pending
 758                     PerlIO_perlio
 759                     PerlIO_pop
 760                     PerlIO_push
 761                     PerlIO_sv_dup
 762                     Perl_PerlIO_clearerr
 763                     Perl_PerlIO_close
 764                     Perl_PerlIO_context_layers
 765                     Perl_PerlIO_eof
 766                     Perl_PerlIO_error
 767                     Perl_PerlIO_fileno
 768                     Perl_PerlIO_fill
 769                     Perl_PerlIO_flush
 770                     Perl_PerlIO_get_base
 771                     Perl_PerlIO_get_bufsiz
 772                     Perl_PerlIO_get_cnt
 773                     Perl_PerlIO_get_ptr
 774                     Perl_PerlIO_read
 775                     Perl_PerlIO_restore_errno
 776                     Perl_PerlIO_save_errno
 777                     Perl_PerlIO_seek
 778                     Perl_PerlIO_set_cnt
 779                     Perl_PerlIO_set_ptrcnt
 780                     Perl_PerlIO_setlinebuf
 781                     Perl_PerlIO_stderr
 782                     Perl_PerlIO_stdin
 783                     Perl_PerlIO_stdout
 784                     Perl_PerlIO_tell
 785                     Perl_PerlIO_unread
 786                     Perl_PerlIO_write
 787 );
 788 if ($ARGS{PLATFORM} eq 'netware') {
 789     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
 790 }
 791
 792 if ($define{'USE_PERLIO'}) {
 793     # Export the symbols that make up the PerlIO abstraction, regardless
 794     # of its implementation - read from a file
 795     push @syms, 'perlio.sym';
 796
 797     # PerlIO with layers - export implementation
 798     try_symbols(@layer_syms, 'perlsio_binmode');
 799 } else {
 800         # -Uuseperlio
 801         # Skip the PerlIO layer symbols - although
 802         # nothing should have exported them anyway.
 803         ++$skip{$_} foreach @layer_syms;
 804         ++$skip{$_} foreach qw(
 805                         perlsio_binmode
 806                         PL_def_layerlist
 807                         PL_known_layers
 808                         PL_perlio
 809                         PL_perlio_debug_fd
 810                         PL_perlio_fd_refcnt
 811                         PL_perlio_fd_refcnt_size
 812                         PL_perlio_mutex
 813                              );
 814
 815         # Also do NOT add abstraction symbols from $perlio_sym
 816         # abstraction is done as #define to stdio
 817         # Remaining remnants that _may_ be functions are handled below.
 818 }
 819
 820 unless ($define{'USE_QUADMATH'}) {
 821   ++$skip{Perl_quadmath_format_needed};
 822   ++$skip{Perl_quadmath_format_single};
 823 }
 824
 825 ###############################################################################
 826
 827 # At this point all skip lists should be completed, as we are about to test
 828 # many symbols against them.
 829
 830 {
 831     my %seen;
 832     my ($embed) = setup_embed($ARGS{TARG_DIR});
 833
 834     foreach (@$embed) {
 835         my ($flags, $retval, $func, @args) = @$_;
 836         next unless $func;
 837         if ($flags =~ /[AX]/ && $flags !~ /[xmi]/ || $flags =~ /b/) {
 838             # public API, so export
 839
 840             # If a function is defined twice, for example before and after
 841             # an #else, only export its name once. Important to do this test
 842             # within the block, as the *first* definition may have flags which
 843             # mean "don't export"
 844             next if $seen{$func}++;
 845             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
 846             $func = "Perl_$func" if ($flags =~ /[pbX]/ && $func !~ /^Perl_/);
 847             ++$export{$func} unless exists $skip{$func};
 848         }
 849     }
 850 }
 851
 852 foreach (@syms) {
 853     my $syms = $ARGS{TARG_DIR} . $_;
 854     open my $global, '<', $syms or die "failed to open $syms: $!\n";
 855     while (<$global>) {
 856         next unless /^([A-Za-z].*)/;
 857         my $symbol = "$1";
 858         ++$export{$symbol} unless exists $skip{$symbol};
 859     }
 860 }
 861
 862 # variables
 863
 864 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
 865     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
 866     # XXX AIX seems to want the perlvars.h symbols, for some reason
 867     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
 868         readvar('perlvars.h', \%export);
 869     }
 870 }
 871 else {
 872     unless ($define{'PERL_GLOBAL_STRUCT'}) {
 873         readvar('perlvars.h', \%export);
 874     }
 875     unless ($define{MULTIPLICITY}) {
 876         readvar('intrpvar.h', \%export);
 877     }
 878 }
 879
 880 # Oddities from PerlIO
 881 # All have alternate implementations in perlio.c, so always exist.
 882 # Should they be considered to be part of the API?
 883 try_symbols(qw(
 884                     PerlIO_binmode
 885                     PerlIO_getpos
 886                     PerlIO_init
 887                     PerlIO_setpos
 888                     PerlIO_tmpfile
 889              ));
 890
 891 if ($ARGS{PLATFORM} eq 'win32') {
 892     try_symbols(qw(
 893                                  win32_free_childdir
 894                                  win32_free_childenv
 895                                  win32_get_childdir
 896                                  win32_get_childenv
 897                                  win32_spawnvp
 898                  ));
 899 }
 900
 901 if ($ARGS{PLATFORM} eq 'wince') {
 902     ++$skip{'win32_isatty'}; # commit 4342f4d6df is win32-only
 903 }
 904
 905 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
 906     try_symbols(qw(
 907                             Perl_init_os_extras
 908                             Perl_thread_create
 909                             Perl_win32_init
 910                             Perl_win32_term
 911                             RunPerl
 912                             win32_async_check
 913                             win32_errno
 914                             win32_environ
 915                             win32_abort
 916                             win32_fstat
 917                             win32_stat
 918                             win32_pipe
 919                             win32_popen
 920                             win32_pclose
 921                             win32_rename
 922                             win32_setmode
 923                             win32_chsize
 924                             win32_lseek
 925                             win32_tell
 926                             win32_dup
 927                             win32_dup2
 928                             win32_open
 929                             win32_close
 930                             win32_eof
 931                             win32_isatty
 932                             win32_read
 933                             win32_write
 934                             win32_mkdir
 935                             win32_rmdir
 936                             win32_chdir
 937                             win32_flock
 938                             win32_execv
 939                             win32_execvp
 940                             win32_htons
 941                             win32_ntohs
 942                             win32_htonl
 943                             win32_ntohl
 944                             win32_inet_addr
 945                             win32_inet_ntoa
 946                             win32_socket
 947                             win32_bind
 948                             win32_listen
 949                             win32_accept
 950                             win32_connect
 951                             win32_send
 952                             win32_sendto
 953                             win32_recv
 954                             win32_recvfrom
 955                             win32_shutdown
 956                             win32_closesocket
 957                             win32_ioctlsocket
 958                             win32_setsockopt
 959                             win32_getsockopt
 960                             win32_getpeername
 961                             win32_getsockname
 962                             win32_gethostname
 963                             win32_gethostbyname
 964                             win32_gethostbyaddr
 965                             win32_getprotobyname
 966                             win32_getprotobynumber
 967                             win32_getservbyname
 968                             win32_getservbyport
 969                             win32_select
 970                             win32_endhostent
 971                             win32_endnetent
 972                             win32_endprotoent
 973                             win32_endservent
 974                             win32_getnetent
 975                             win32_getnetbyname
 976                             win32_getnetbyaddr
 977                             win32_getprotoent
 978                             win32_getservent
 979                             win32_sethostent
 980                             win32_setnetent
 981                             win32_setprotoent
 982                             win32_setservent
 983                             win32_getenv
 984                             win32_putenv
 985                             win32_perror
 986                             win32_malloc
 987                             win32_calloc
 988                             win32_realloc
 989                             win32_free
 990                             win32_sleep
 991                             win32_times
 992                             win32_access
 993                             win32_alarm
 994                             win32_chmod
 995                             win32_open_osfhandle
 996                             win32_get_osfhandle
 997                             win32_ioctl
 998                             win32_link
 999                             win32_unlink
1000                             win32_utime
1001                             win32_gettimeofday
1002                             win32_uname
1003                             win32_wait
1004                             win32_waitpid
1005                             win32_kill
1006                             win32_str_os_error
1007                             win32_opendir
1008                             win32_readdir
1009                             win32_telldir
1010                             win32_seekdir
1011                             win32_rewinddir
1012                             win32_closedir
1013                             win32_longpath
1014                             win32_ansipath
1015                             win32_os_id
1016                             win32_getpid
1017                             win32_crypt
1018                             win32_dynaload
1019                             win32_clearenv
1020                             win32_stdin
1021                             win32_stdout
1022                             win32_stderr
1023                             win32_ferror
1024                             win32_feof
1025                             win32_strerror
1026                             win32_fprintf
1027                             win32_printf
1028                             win32_vfprintf
1029                             win32_vprintf
1030                             win32_fread
1031                             win32_fwrite
1032                             win32_fopen
1033                             win32_fdopen
1034                             win32_freopen
1035                             win32_fclose
1036                             win32_fputs
1037                             win32_fputc
1038                             win32_ungetc
1039                             win32_getc
1040                             win32_fileno
1041                             win32_clearerr
1042                             win32_fflush
1043                             win32_ftell
1044                             win32_fseek
1045                             win32_fgetpos
1046                             win32_fsetpos
1047                             win32_rewind
1048                             win32_tmpfile
1049                             win32_setbuf
1050                             win32_setvbuf
1051                             win32_flushall
1052                             win32_fcloseall
1053                             win32_fgets
1054                             win32_gets
1055                             win32_fgetc
1056                             win32_putc
1057                             win32_puts
1058                             win32_getchar
1059                             win32_putchar
1060                  ));
1061 }
1062 elsif ($ARGS{PLATFORM} eq 'vms') {
1063     try_symbols(qw(
1064                       Perl_cando
1065                       Perl_cando_by_name
1066                       Perl_closedir
1067                       Perl_csighandler_init
1068                       Perl_do_rmdir
1069                       Perl_fileify_dirspec
1070                       Perl_fileify_dirspec_ts
1071                       Perl_fileify_dirspec_utf8
1072                       Perl_fileify_dirspec_utf8_ts
1073                       Perl_flex_fstat
1074                       Perl_flex_lstat
1075                       Perl_flex_stat
1076                       Perl_kill_file
1077                       Perl_my_chdir
1078                       Perl_my_chmod
1079                       Perl_my_crypt
1080                       Perl_my_endpwent
1081                       Perl_my_fclose
1082                       Perl_my_fdopen
1083                       Perl_my_fgetname
1084                       Perl_my_flush
1085                       Perl_my_fwrite
1086                       Perl_my_gconvert
1087                       Perl_my_getenv
1088                       Perl_my_getenv_len
1089                       Perl_my_getlogin
1090                       Perl_my_getpwnam
1091                       Perl_my_getpwuid
1092                       Perl_my_gmtime
1093                       Perl_my_kill
1094                       Perl_my_localtime
1095                       Perl_my_mkdir
1096                       Perl_my_sigaction
1097                       Perl_my_symlink
1098                       Perl_my_time
1099                       Perl_my_tmpfile
1100                       Perl_my_trnlnm
1101                       Perl_my_utime
1102                       Perl_my_waitpid
1103                       Perl_opendir
1104                       Perl_pathify_dirspec
1105                       Perl_pathify_dirspec_ts
1106                       Perl_pathify_dirspec_utf8
1107                       Perl_pathify_dirspec_utf8_ts
1108                       Perl_readdir
1109                       Perl_readdir_r
1110                       Perl_rename
1111                       Perl_rmscopy
1112                       Perl_rmsexpand
1113                       Perl_rmsexpand_ts
1114                       Perl_rmsexpand_utf8
1115                       Perl_rmsexpand_utf8_ts
1116                       Perl_seekdir
1117                       Perl_sig_to_vmscondition
1118                       Perl_telldir
1119                       Perl_tounixpath
1120                       Perl_tounixpath_ts
1121                       Perl_tounixpath_utf8
1122                       Perl_tounixpath_utf8_ts
1123                       Perl_tounixspec
1124                       Perl_tounixspec_ts
1125                       Perl_tounixspec_utf8
1126                       Perl_tounixspec_utf8_ts
1127                       Perl_tovmspath
1128                       Perl_tovmspath_ts
1129                       Perl_tovmspath_utf8
1130                       Perl_tovmspath_utf8_ts
1131                       Perl_tovmsspec
1132                       Perl_tovmsspec_ts
1133                       Perl_tovmsspec_utf8
1134                       Perl_tovmsspec_utf8_ts
1135                       Perl_trim_unixpath
1136                       Perl_vms_case_tolerant
1137                       Perl_vms_do_aexec
1138                       Perl_vms_do_exec
1139                       Perl_vms_image_init
1140                       Perl_vms_realpath
1141                       Perl_vmssetenv
1142                       Perl_vmssetuserlnm
1143                       Perl_vmstrnenv
1144                       PerlIO_openn
1145                  ));
1146 }
1147 elsif ($ARGS{PLATFORM} eq 'os2') {
1148     try_symbols(qw(
1149                       ctermid
1150                       get_sysinfo
1151                       Perl_OS2_init
1152                       Perl_OS2_init3
1153                       Perl_OS2_term
1154                       OS2_Perl_data
1155                       dlopen
1156                       dlsym
1157                       dlerror
1158                       dlclose
1159                       dup2
1160                       dup
1161                       my_tmpfile
1162                       my_tmpnam
1163                       my_flock
1164                       my_rmdir
1165                       my_mkdir
1166                       my_getpwuid
1167                       my_getpwnam
1168                       my_getpwent
1169                       my_setpwent
1170                       my_endpwent
1171                       fork_with_resources
1172                       croak_with_os2error
1173                       setgrent
1174                       endgrent
1175                       getgrent
1176                       malloc_mutex
1177                       threads_mutex
1178                       nthreads
1179                       nthreads_cond
1180                       os2_cond_wait
1181                       os2_stat
1182                       os2_execname
1183                       async_mssleep
1184                       msCounter
1185                       InfoTable
1186                       pthread_join
1187                       pthread_create
1188                       pthread_detach
1189                       XS_Cwd_change_drive
1190                       XS_Cwd_current_drive
1191                       XS_Cwd_extLibpath
1192                       XS_Cwd_extLibpath_set
1193                       XS_Cwd_sys_abspath
1194                       XS_Cwd_sys_chdir
1195                       XS_Cwd_sys_cwd
1196                       XS_Cwd_sys_is_absolute
1197                       XS_Cwd_sys_is_relative
1198                       XS_Cwd_sys_is_rooted
1199                       XS_DynaLoader_mod2fname
1200                       XS_File__Copy_syscopy
1201                       Perl_Register_MQ
1202                       Perl_Deregister_MQ
1203                       Perl_Serve_Messages
1204                       Perl_Process_Messages
1205                       init_PMWIN_entries
1206                       PMWIN_entries
1207                       Perl_hab_GET
1208                       loadByOrdinal
1209                       pExtFCN
1210                       os2error
1211                       ResetWinError
1212                       CroakWinError
1213                       PL_do_undump
1214                  ));
1215 }
1216 elsif ($ARGS{PLATFORM} eq 'netware') {
1217     try_symbols(qw(
1218                         Perl_init_os_extras
1219                         Perl_thread_create
1220                         Perl_nw5_init
1221                         RunPerl
1222                         AllocStdPerl
1223                         FreeStdPerl
1224                         do_spawn2
1225                         do_aspawn
1226                         nw_uname
1227                         nw_stdin
1228                         nw_stdout
1229                         nw_stderr
1230                         nw_feof
1231                         nw_ferror
1232                         nw_fopen
1233                         nw_fclose
1234                         nw_clearerr
1235                         nw_getc
1236                         nw_fgets
1237                         nw_fputc
1238                         nw_fputs
1239                         nw_fflush
1240                         nw_ungetc
1241                         nw_fileno
1242                         nw_fdopen
1243                         nw_freopen
1244                         nw_fread
1245                         nw_fwrite
1246                         nw_setbuf
1247                         nw_setvbuf
1248                         nw_vfprintf
1249                         nw_ftell
1250                         nw_fseek
1251                         nw_rewind
1252                         nw_tmpfile
1253                         nw_fgetpos
1254                         nw_fsetpos
1255                         nw_dup
1256                         nw_access
1257                         nw_chmod
1258                         nw_chsize
1259                         nw_close
1260                         nw_dup2
1261                         nw_flock
1262                         nw_isatty
1263                         nw_link
1264                         nw_lseek
1265                         nw_stat
1266                         nw_mktemp
1267                         nw_open
1268                         nw_read
1269                         nw_rename
1270                         nw_setmode
1271                         nw_unlink
1272                         nw_utime
1273                         nw_write
1274                         nw_chdir
1275                         nw_rmdir
1276                         nw_closedir
1277                         nw_opendir
1278                         nw_readdir
1279                         nw_rewinddir
1280                         nw_seekdir
1281                         nw_telldir
1282                         nw_htonl
1283                         nw_htons
1284                         nw_ntohl
1285                         nw_ntohs
1286                         nw_accept
1287                         nw_bind
1288                         nw_connect
1289                         nw_endhostent
1290                         nw_endnetent
1291                         nw_endprotoent
1292                         nw_endservent
1293                         nw_gethostbyaddr
1294                         nw_gethostbyname
1295                         nw_gethostent
1296                         nw_gethostname
1297                         nw_getnetbyaddr
1298                         nw_getnetbyname
1299                         nw_getnetent
1300                         nw_getpeername
1301                         nw_getprotobyname
1302                         nw_getprotobynumber
1303                         nw_getprotoent
1304                         nw_getservbyname
1305                         nw_getservbyport
1306                         nw_getservent
1307                         nw_getsockname
1308                         nw_getsockopt
1309                         nw_inet_addr
1310                         nw_listen
1311                         nw_socket
1312                         nw_recv
1313                         nw_recvfrom
1314                         nw_select
1315                         nw_send
1316                         nw_sendto
1317                         nw_sethostent
1318                         nw_setnetent
1319                         nw_setprotoent
1320                         nw_setservent
1321                         nw_setsockopt
1322                         nw_inet_ntoa
1323                         nw_shutdown
1324                         nw_crypt
1325                         nw_execvp
1326                         nw_kill
1327                         nw_Popen
1328                         nw_Pclose
1329                         nw_Pipe
1330                         nw_times
1331                         nw_waitpid
1332                         nw_getpid
1333                         nw_spawnvp
1334                         nw_os_id
1335                         nw_open_osfhandle
1336                         nw_get_osfhandle
1337                         nw_abort
1338                         nw_sleep
1339                         nw_wait
1340                         nw_dynaload
1341                         nw_strerror
1342                         fnFpSetMode
1343                         fnInsertHashListAddrs
1344                         fnGetHashListAddrs
1345                         Perl_deb
1346                         Perl_sv_setsv
1347                         Perl_sv_catsv
1348                         Perl_sv_catpvn
1349                         Perl_sv_2pv
1350                         nw_freeenviron
1351                         Remove_Thread_Ctx
1352                  ));
1353 }
1354
1355 # When added this code was only run for Win32 and WinCE
1356 # Currently only Win32 links static extensions into the shared library.
1357 # The WinCE makefile doesn't appear to support static extensions, so this code
1358 # can't have any effect there.
1359 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1360 # list of dynamic extensions, and the rules to build them)
1361 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1362 # static extensions with -fPIC, but links them to perl, not libperl.so
1363 # The VMS build scripts don't yet implement static extensions at all.
1364
1365 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1366     # records of type boot_module for statically linked modules (except Dynaloader)
1367     my $static_ext = $Config{static_ext} // "";
1368     $static_ext =~ s/\//__/g;
1369     $static_ext =~ s/\bDynaLoader\b//;
1370     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1371     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1372 }
1373
1374 if ($ARGS{PLATFORM} eq 'os2') {
1375     my (%mapped, @missing);
1376     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1377     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1378     close MAP or die 'Cannot close miniperl.map';
1379
1380     @missing = grep { !exists $mapped{$_} }
1381                     keys %export;
1382     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1383     delete $export{$_} foreach @missing;
1384 }
1385
1386 ###############################################################################
1387
1388 # Now all symbols should be defined because next we are going to output them.
1389
1390 # Start with platform specific headers:
1391
1392 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1393     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1394         : "perl$Config{api_revision}$Config{api_version}";
1395     print "LIBRARY $dll\n";
1396     # The DESCRIPTION module definition file statement is not supported
1397     # by VC7 onwards.
1398     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1399         print "DESCRIPTION 'Perl interpreter'\n";
1400     }
1401     print "EXPORTS\n";
1402 }
1403 elsif ($ARGS{PLATFORM} eq 'os2') {
1404     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1405     $v .= '-thread' if $Config{archname} =~ /-thread/;
1406     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1407     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1408     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1409     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1410     print <<"---EOP---";
1411 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1412 $d
1413 STACKSIZE 32768
1414 CODE LOADONCALL
1415 DATA LOADONCALL NONSHARED MULTIPLE
1416 EXPORTS
1417 ---EOP---
1418 }
1419 elsif ($ARGS{PLATFORM} eq 'aix') {
1420     my $OSVER = `uname -v`;
1421     chop $OSVER;
1422     my $OSREL = `uname -r`;
1423     chop $OSREL;
1424     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1425         print "#! ..\n";
1426     } else {
1427         print "#!\n";
1428     }
1429 }
1430 elsif ($ARGS{PLATFORM} eq 'netware') {
1431         if ($ARGS{FILETYPE} eq 'def') {
1432         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1433         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1434         print "EXPORTS\n";
1435         }
1436 }
1437
1438 # Then the symbols
1439
1440 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1441 foreach my $symbol (@symbols) {
1442     if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1443         print "\t$symbol\n";
1444     }
1445     elsif ($ARGS{PLATFORM} eq 'os2') {
1446         printf qq(    %-31s \@%s\n),
1447           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1448         printf qq(    %-31s \@%s\n),
1449           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1450           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1451           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1452     }
1453     elsif ($ARGS{PLATFORM} eq 'netware') {
1454         print "\t$symbol,\n";
1455     } else {
1456         print "$symbol\n";
1457     }
1458 }
1459
1460 # Then platform specific footers.
1461
1462 if ($ARGS{PLATFORM} eq 'os2') {
1463     print <<EOP;
1464     dll_perlmain=main
1465     fill_extLibpath
1466     dir_subst
1467     Perl_OS2_handler_install
1468
1469 ; LAST_ORDINAL=$sym_ord
1470 EOP
1471 }
1472
1473 1;