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