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 #    makedef.lis VMS
  33
  34 use strict;
  35 use Config;
  36 use warnings;
  37
  38 my $fold;
  39 my %ARGS;
  40 my %define;
  41 BEGIN {
  42     %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
  43
  44     sub process_cc_flags {
  45         foreach (map {split /\s+/, $_} @_) {
  46             $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
  47         }
  48     }
  49
  50     while (@ARGV) {
  51         my $flag = shift;
  52         if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
  53             process_cc_flags($1);
  54         } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR|CONFIG_H)=(.+)$/) {
  55             $ARGS{$1} = $2;
  56         } elsif ($flag eq '--sort-fold') {
  57             ++$fold;
  58         }
  59     }
  60     my @PLATFORM = qw(aix win32 os2 vms test);
  61     my %PLATFORM;
  62     @PLATFORM{@PLATFORM} = ();
  63
  64     die "PLATFORM undefined, must be one of: @PLATFORM\n"
  65         unless defined $ARGS{PLATFORM};
  66     die "PLATFORM must be one of: @PLATFORM\n"
  67         unless exists $PLATFORM{$ARGS{PLATFORM}};
  68 }
  69
  70 use constant PLATFORM => $ARGS{PLATFORM};
  71
  72 # This makes us able to use, e.g., $define{WIN32}, so you don't have to
  73 # remember what things came from %ARGS.
  74 $define{uc $ARGS{'PLATFORM'}} = 1;
  75
  76 require "./$ARGS{TARG_DIR}regen/embed_lib.pl";
  77
  78 # Is the following guard strictly necessary? Added during refactoring
  79 # to keep the same behaviour when merging other code into here.
  80 process_cc_flags(@Config{qw(ccflags optimize)})
  81     if PLATFORM ne 'win32';
  82
  83 # Add the compile-time options that miniperl was built with to %define.
  84 # On Win32 these are not the same options as perl itself will be built
  85 # with since miniperl is built with a canned config (one of the win32/
  86 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
  87 # but they do include some #define's that are hard-coded in various
  88 # source files and header files and don't include any BUILDOPT's that
  89 # the user might have chosen to disable because the canned configs are
  90 # minimal configs that don't include any of those options.
  91
  92 my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
  93 print STDERR "Options: (@options)\n" unless PLATFORM eq 'test';
  94 $define{$_} = 1 foreach @options;
  95
  96 my %exportperlmalloc =
  97     (
  98        Perl_malloc              =>      "malloc",
  99        Perl_mfree               =>      "free",
 100        Perl_realloc             =>      "realloc",
 101        Perl_calloc              =>      "calloc",
 102     );
 103
 104 my $exportperlmalloc = PLATFORM eq 'os2';
 105
 106 my $config_h = $ARGS{CONFIG_H} || "config.h";
 107 open(CFG, '<', $config_h) || die "Cannot open $config_h: $!\n";
 108 while (<CFG>) {
 109     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
 110                                            |KILL_BY_SIGPRC
 111                                            |(?:PERL|USE|HAS)_\w+)\b/x;
 112 }
 113 close(CFG);
 114
 115 if ($define{WIN32_USE_FAKE_OLD_MINGW_LOCALES}) {
 116     $define{NO_POSIX_2008_LOCALE} = 1;
 117 }
 118
 119 #==========================================================================
 120 # perl.h logic duplication begins
 121
 122
 123 if ($define{USE_THREADS}) {
 124     if (!$define{MULTIPLICITY}) {
 125         $define{MULTIPLICITY} = 1;
 126     }
 127 }
 128
 129 $define{MULTIPLICITY} ||= $define{PERL_IMPLICIT_CONTEXT} ;
 130
 131 if ($define{MULTIPLICITY} && ! $define{WIN32}) {
 132     $define{USE_REENTRANT_API} = 1;
 133 }
 134
 135 if (! $define{NO_LOCALE}) {
 136     if ( ! $define{NO_POSIX_2008_LOCALE}
 137         && $define{HAS_NEWLOCALE}
 138         && $define{HAS_USELOCALE}
 139         && $define{HAS_DUPLOCALE}
 140         && $define{HAS_FREELOCALE})
 141     {
 142         $define{HAS_POSIX_2008_LOCALE} = 1;
 143         $define{USE_LOCALE} = 1;
 144     }
 145     elsif ($define{HAS_SETLOCALE}) {
 146         $define{USE_LOCALE} = 1;
 147     }
 148 }
 149
 150 # https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B#Internal_version_numbering
 151 my $cctype = $ARGS{CCTYPE} =~ s/MSVC//r;
 152 if (   $define{USE_THREADS}
 153     && $define{USE_LOCALE}
 154     && ! $define{NO_LOCALE_THREADS})
 155 {
 156     $define{USE_LOCALE_THREADS} = 1;
 157 }
 158
 159 if (   $define{HAS_POSIX_2008_LOCALE}
 160     && $define{USE_LOCALE}
 161     && (! $define{HAS_SETLOCALE} || (     $define{USE_LOCALE_THREADS}
 162                                      && ! $define{NO_POSIX_2008_LOCALE})
 163                                      && ! $define{NO_THREAD_SAFE_LOCALE}))
 164 {
 165     $define{USE_POSIX_2008_LOCALE} = 1;
 166 }
 167
 168 if ($define{USE_LOCALE_THREADS} && ! $define{NO_THREAD_SAFE_LOCALE}) {
 169     if (    $define{USE_POSIX_2008_LOCALE}
 170         || ($define{WIN32} && (   $cctype !~ /\D/
 171                                && $cctype >= 80)))
 172     {
 173         $define{USE_THREAD_SAFE_LOCALE} = 1;
 174     }
 175 }
 176
 177 if (    $define{USE_POSIX_2008_LOCALE}
 178     && (   $define{HAS_QUERYLOCALE}
 179         || (     $Config{cppsymbols} =~ /__GLIBC__/
 180             && ! $define{NO_USE_NL_LOCALE_NAME}
 181             &&   $define{HAS_NL_LANGINFO_L}
 182             && ! $define{SETLOCALE_ACCEPTS_ANY_LOCALE_NAME})))
 183 {
 184     $define{USE_QUERYLOCALE} = 1;
 185 }
 186
 187 if ($define{USE_POSIX_2008_LOCALE} && ! $define{USE_QUERYLOCALE})
 188 {
 189     $define{USE_PL_CURLOCALES} = 1;
 190 }
 191
 192 if ($define{WIN32})
 193 {
 194     if ($define{USE_THREAD_SAFE_LOCALE})
 195     {
 196         $define{USE_PL_CUR_LC_ALL} = 1;
 197     }
 198
 199     if ($cctype < 140) {
 200         $define{TS_W32_BROKEN_LOCALECONV} = 1;
 201     }
 202 }
 203
 204 if ($define{MULTIPLICITY} && (   $define{USE_POSIX_2008_LOCALE}
 205                               || (   $define{WIN32}
 206                                   && $define{USE_THREAD_SAFE_LOCALE})))
 207 {
 208     $define{USE_PERL_SWITCH_LOCALE_CONTEXT} = 1;
 209 }
 210
 211 # perl.h logic duplication ends
 212 #==========================================================================
 213
 214 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
 215      unless PLATFORM eq 'test';
 216
 217 my $sym_ord = 0;
 218 my %ordinal;
 219
 220 if (PLATFORM eq 'os2') {
 221     if (open my $fh, '<', 'perl5.def') {
 222       while (<$fh>) {
 223         last if /^\s*EXPORTS\b/;
 224       }
 225       while (<$fh>) {
 226         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 227         # This allows skipping ordinals which were used in older versions
 228         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 229       }
 230       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 231     }
 232 }
 233
 234 my %skip;
 235 # All platforms export boot_DynaLoader unconditionally.
 236 my %export = ( boot_DynaLoader => 1 );
 237
 238 # d_thread_local not perl_thread_local - see hints/darwin.sh
 239 ++$export{PL_current_context}
 240     if defined $Config{d_thread_local} && $define{USE_ITHREADS};
 241
 242 sub try_symbols {
 243     foreach my $symbol (@_) {
 244         ++$export{$symbol} unless exists $skip{$symbol};
 245     }
 246 }
 247
 248 sub readvar {
 249     # $hash is the hash that we're adding to. For one of our callers, it will
 250     # actually be the skip hash but that doesn't affect the intent of what
 251     # we're doing, as in that case we skip adding something to the skip hash
 252     # for the second time.
 253
 254     my $file = $ARGS{TARG_DIR} . shift;
 255     my $hash = shift;
 256     my $proc = shift;
 257     open my $vars, '<', $file or die "Cannot open $file: $!\n";
 258
 259     while (<$vars>) {
 260         # All symbols have a Perl_ prefix because that's what embed.h sticks
 261         # in front of them.  The A?I?S?C? is strictly speaking wrong.
 262         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
 263
 264         my $var = "PL_$3";
 265         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
 266         ++$hash->{$symbol} unless exists $skip{$var};
 267     }
 268 }
 269
 270 if (PLATFORM ne 'os2') {
 271     ++$skip{$_} foreach qw(
 272                      PL_opsave
 273                      Perl_dump_fds
 274                      Perl_my_bcopy
 275                      Perl_my_bzero
 276                      Perl_my_chsize
 277                      Perl_my_htonl
 278                      Perl_my_memcmp
 279                      Perl_my_memset
 280                      Perl_my_ntohl
 281                      Perl_my_swap
 282                          );
 283     if (PLATFORM eq 'vms') {
 284         ++$skip{PL_statusvalue_posix};
 285         # This is a wrapper if we have symlink, not a replacement
 286         # if we don't.
 287         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
 288     } else {
 289         ++$skip{PL_statusvalue_vms};
 290         ++$skip{PL_perllib_sep};
 291         if (PLATFORM ne 'aix') {
 292             ++$skip{$_} foreach qw(
 293                                 PL_DBcv
 294                                 PL_generation
 295                                 PL_lastgotoprobe
 296                                 PL_modcount
 297                                 main
 298                                  );
 299         }
 300     }
 301 }
 302
 303 if (PLATFORM ne 'vms') {
 304     # VMS does its own thing for these symbols.
 305     ++$skip{$_} foreach qw(
 306                         PL_sig_handlers_initted
 307                         PL_sig_ignoring
 308                         PL_sig_defaulting
 309                          );
 310     if (PLATFORM ne 'win32') {
 311         ++$skip{$_} foreach qw(
 312                             Perl_do_spawn
 313                             Perl_do_spawn_nowait
 314                             Perl_do_aspawn
 315                              );
 316     }
 317 }
 318
 319 if (PLATFORM ne 'win32') {
 320     ++$skip{$_} foreach qw(
 321                     Perl_get_context
 322                     Perl_get_win32_message_utf8ness
 323                     Perl_Win_utf8_string_to_wstring
 324                     Perl_Win_wstring_to_utf8_string
 325                          );
 326 }
 327
 328 unless ($define{UNLINK_ALL_VERSIONS}) {
 329     ++$skip{Perl_unlnk};
 330 }
 331
 332 unless ($define{'DEBUGGING'}) {
 333     ++$skip{$_} foreach qw(
 334                     Perl_debop
 335                     Perl_debprofdump
 336                     Perl_debstack
 337                     Perl_debstackptrs
 338                     Perl_pad_sv
 339                     Perl_pad_setsv
 340                     Perl_set_padlist
 341                     Perl_hv_assert
 342                     PL_watchaddr
 343                     PL_watchok
 344                          );
 345 }
 346
 347 if ($define{'PERL_IMPLICIT_SYS'}) {
 348     ++$skip{$_} foreach qw(
 349                     Perl_my_popen
 350                     Perl_my_pclose
 351                          );
 352     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
 353     ++$export{perl_clone_host} if $define{USE_ITHREADS};
 354 }
 355 else {
 356     ++$skip{$_} foreach qw(
 357                     PL_Mem
 358                     PL_MemShared
 359                     PL_MemParse
 360                     PL_Env
 361                     PL_StdIO
 362                     PL_LIO
 363                     PL_Dir
 364                     PL_Sock
 365                     PL_Proc
 366                     perl_alloc_using
 367                     perl_clone_using
 368                          );
 369 }
 370
 371 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
 372     ++$skip{Perl_sv_setsv_cow};
 373 }
 374
 375 unless ($define{PERL_SAWAMPERSAND}) {
 376     ++$skip{PL_sawampersand};
 377 }
 378
 379 unless ($define{'USE_REENTRANT_API'}) {
 380     ++$skip{PL_reentrant_buffer};
 381 }
 382
 383 if ($define{'MYMALLOC'}) {
 384     try_symbols(qw(
 385                     Perl_dump_mstats
 386                     Perl_get_mstats
 387                     Perl_strdup
 388                     Perl_putenv
 389                     MallocCfg_ptr
 390                     MallocCfgP_ptr
 391                     ));
 392     unless ($define{USE_ITHREADS}) {
 393         ++$skip{PL_malloc_mutex}
 394     }
 395 }
 396 else {
 397     ++$skip{$_} foreach qw(
 398                     PL_malloc_mutex
 399                     Perl_dump_mstats
 400                     Perl_get_mstats
 401                     MallocCfg_ptr
 402                     MallocCfgP_ptr
 403                          );
 404 }
 405
 406 unless ($define{'USE_ITHREADS'}) {
 407     ++$skip{PL_thr_key};
 408     ++$skip{PL_user_prop_mutex};
 409     ++$skip{PL_user_def_props_aTHX};
 410 }
 411
 412 unless ($define{'USE_ITHREADS'}) {
 413     ++$skip{$_} foreach qw(
 414                     PL_keyword_plugin_mutex
 415                     PL_check_mutex
 416                     PL_op_mutex
 417                     PL_regex_pad
 418                     PL_regex_padav
 419                     PL_dollarzero_mutex
 420                     PL_env_mutex
 421                     PL_env_mutex_depth
 422                     PL_hints_mutex
 423                     PL_locale_mutex
 424                     PL_locale_mutex_depth
 425                     PL_my_ctx_mutex
 426                     PL_perlio_mutex
 427                     PL_stashpad
 428                     PL_stashpadix
 429                     PL_stashpadmax
 430                     PL_veto_switch_non_tTHX_context
 431                     Perl_alloccopstash
 432                     Perl_allocfilegv
 433                     Perl_clone_params_del
 434                     Perl_clone_params_new
 435                     Perl_parser_dup
 436                     Perl_dirp_dup
 437                     Perl_cx_dup
 438                     Perl_si_dup
 439                     Perl_any_dup
 440                     Perl_ss_dup
 441                     Perl_fp_dup
 442                     Perl_gp_dup
 443                     Perl_he_dup
 444                     Perl_mg_dup
 445                     Perl_re_dup_guts
 446                     Perl_sv_dup
 447                     Perl_sv_dup_inc
 448                     Perl_rvpv_dup
 449                     Perl_hek_dup
 450                     Perl_sys_intern_dup
 451                     perl_clone
 452                     perl_clone_using
 453                     Perl_stashpv_hvname_match
 454                     Perl_regdupe_internal
 455                     Perl_newPADOP
 456                          );
 457 }
 458
 459 unless ($define{'USE_THREADS'}) {
 460     ++$skip{Perl_thread_locale_init};
 461     ++$skip{Perl_thread_locale_term};
 462 }
 463
 464 if (!$define{USE_ITHREADS} || $define{WIN32}) {
 465     ++$skip{PL_main_thread};
 466 }
 467
 468 unless ($define{USE_POSIX_2008_LOCALE})
 469 {
 470     ++$skip{$_} foreach qw(
 471         PL_C_locale_obj
 472         PL_scratch_locale_obj
 473         PL_cur_locale_obj
 474     );
 475 }
 476 unless ($define{USE_PL_CURLOCALES})
 477 {
 478     ++$skip{$_} foreach qw(
 479         PL_curlocales
 480     );
 481 }
 482
 483 unless ($define{USE_PL_CUR_LC_ALL})
 484 {
 485     ++$skip{$_} foreach qw(
 486         PL_cur_LC_ALL
 487     );
 488 }
 489
 490 unless ($define{USE_PERL_SWITCH_LOCALE_CONTEXT})
 491 {
 492     ++$skip{$_} foreach qw(
 493         Perl_switch_locale_context
 494     );
 495 }
 496
 497 unless ($define{'MULTIPLICITY'}) {
 498     ++$skip{$_} foreach qw(
 499                     PL_cur_locale_obj
 500                     PL_my_cxt_index
 501                     PL_my_cxt_list
 502                     PL_my_cxt_size
 503                     PL_my_cxt_keys
 504                     PL_my_cxt_keys_size
 505                     Perl_croak_nocontext
 506                     Perl_die_nocontext
 507                     Perl_deb_nocontext
 508                     Perl_form_nocontext
 509                     Perl_load_module_nocontext
 510                     Perl_mess_nocontext
 511                     Perl_warn_nocontext
 512                     Perl_warner_nocontext
 513                     Perl_newSVpvf_nocontext
 514                     Perl_sv_catpvf_nocontext
 515                     Perl_sv_setpvf_nocontext
 516                     Perl_sv_catpvf_mg_nocontext
 517                     Perl_sv_setpvf_mg_nocontext
 518                     Perl_my_cxt_init
 519                     Perl_my_cxt_index
 520                          );
 521 }
 522
 523 unless ($define{'USE_DTRACE'}) {
 524     ++$skip{$_} foreach qw(
 525                     Perl_dtrace_probe_call
 526                     Perl_dtrace_probe_load
 527                     Perl_dtrace_probe_op
 528                     Perl_dtrace_probe_phase
 529                 );
 530 }
 531
 532 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 533     ++$skip{PL_sv_serial};
 534 }
 535
 536 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 537     ++$skip{PL_dumper_fd};
 538 }
 539
 540 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 541     ++$skip{Perl_gv_SVadd};
 542 }
 543
 544 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 545     ++$skip{PL_pidstatus};
 546 }
 547
 548 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 549     ++$skip{PL_memory_debug_header};
 550 }
 551
 552 unless ($define{'PERL_MEM_LOG'}) {
 553     ++$skip{$_} foreach qw(
 554                     PL_mem_log
 555                     Perl_mem_log_alloc
 556                     Perl_mem_log_realloc
 557                     Perl_mem_log_free
 558                     Perl_mem_log_new_sv
 559                     Perl_mem_log_del_sv
 560                 );
 561 }
 562
 563 unless ($define{'MULTIPLICITY'}) {
 564     ++$skip{$_} foreach qw(
 565                     PL_interp_size
 566                     PL_interp_size_5_18_0
 567                     PL_sv_yes
 568                     PL_sv_undef
 569                     PL_sv_no
 570                     PL_sv_zero
 571                          );
 572 }
 573
 574 unless ($define{HAS_MMAP}) {
 575     ++$skip{PL_mmap_page_size};
 576 }
 577
 578 if ($define{HAS_SIGACTION}) {
 579     ++$skip{PL_sig_trapped};
 580
 581     if (PLATFORM eq 'vms') {
 582         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
 583         ++$skip{PL_sig_ignoring};
 584         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
 585     }
 586 }
 587
 588 if (PLATFORM eq 'vms' && !$define{KILL_BY_SIGPRC}) {
 589     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
 590     ++$skip{Perl_csighandler_init};
 591     ++$skip{Perl_my_kill};
 592     ++$skip{Perl_sig_to_vmscondition};
 593     ++$skip{PL_sig_defaulting};
 594     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
 595 }
 596
 597 if ($define{'HAS_STRNLEN'})
 598 {
 599     ++$skip{Perl_my_strnlen};
 600 }
 601
 602 unless ($define{USE_LOCALE_COLLATE}) {
 603     ++$skip{$_} foreach qw(
 604                     PL_collation_ix
 605                     PL_collation_name
 606                     PL_collation_standard
 607                     PL_collxfrm_base
 608                     PL_collxfrm_mult
 609                     Perl_sv_collxfrm
 610                     Perl_sv_collxfrm_flags
 611                     PL_strxfrm_NUL_replacement
 612                     PL_strxfrm_is_behaved
 613                     PL_strxfrm_max_cp
 614                     PL_in_utf8_COLLATE_locale
 615                          );
 616 }
 617
 618 unless ($define{USE_LOCALE_THREADS} && ! $define{USE_THREAD_SAFE_LOCALE}) {
 619     ++$skip{$_} foreach qw(
 620                            PL_less_dicey_locale_buf
 621                            PL_less_dicey_locale_bufsize
 622                           );
 623 }
 624
 625 unless ($define{USE_LOCALE_CTYPE}) {
 626     ++$skip{$_} foreach qw(
 627                     PL_ctype_name
 628                     PL_in_utf8_CTYPE_locale
 629                     PL_in_utf8_turkic_locale
 630                          );
 631 }
 632
 633 unless (   ! $define{HAS_NL_LANGINFO}
 634         &&   $define{USE_LOCALE_CTYPE}
 635         && ! $define{WIN32}
 636         && ! $define{HAS_MBTOWC}
 637         && ! $define{HAS_MBRTOWC})
 638     {
 639         ++$skip{$_} foreach qw(
 640                                 PL_langinfo_recursed
 641                               );
 642     }
 643
 644 unless ($define{'USE_C_BACKTRACE'}) {
 645     ++$skip{Perl_get_c_backtrace_dump};
 646     ++$skip{Perl_dump_c_backtrace};
 647 }
 648
 649 unless ($define{HAVE_INTERP_INTERN}) {
 650     ++$skip{$_} foreach qw(
 651                     Perl_sys_intern_clear
 652                     Perl_sys_intern_dup
 653                     Perl_sys_intern_init
 654                     PL_sys_intern
 655                          );
 656 }
 657
 658 if ($define{HAS_SIGNBIT}) {
 659     ++$skip{Perl_signbit};
 660 }
 661
 662 ++$skip{PL_op_exec_cnt}
 663     unless $define{PERL_TRACE_OPS};
 664
 665 ++$skip{PL_hash_chars}
 666     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
 667
 668 unless ($define{PERL_RC_STACK}) {
 669     ++$skip{$_} foreach qw(
 670                     Perl_pp_wrap
 671                     Perl_xs_wrap
 672                     Perl_runops_wrap
 673                          );
 674 }
 675
 676 # functions from *.sym files
 677
 678 my @syms = qw(globvar.sym);
 679
 680 # Symbols that are the public face of the PerlIO layers implementation
 681 # These are in _addition to_ the public face of the abstraction
 682 # and need to be exported to allow XS modules to implement layers
 683 my @layer_syms = qw(
 684                     PerlIOBase_binmode
 685                     PerlIOBase_clearerr
 686                     PerlIOBase_close
 687                     PerlIOBase_dup
 688                     PerlIOBase_eof
 689                     PerlIOBase_error
 690                     PerlIOBase_fileno
 691                     PerlIOBase_open
 692                     PerlIOBase_noop_fail
 693                     PerlIOBase_noop_ok
 694                     PerlIOBase_popped
 695                     PerlIOBase_pushed
 696                     PerlIOBase_read
 697                     PerlIOBase_setlinebuf
 698                     PerlIOBase_unread
 699                     PerlIOBuf_bufsiz
 700                     PerlIOBuf_close
 701                     PerlIOBuf_dup
 702                     PerlIOBuf_fill
 703                     PerlIOBuf_flush
 704                     PerlIOBuf_get_base
 705                     PerlIOBuf_get_cnt
 706                     PerlIOBuf_get_ptr
 707                     PerlIOBuf_open
 708                     PerlIOBuf_popped
 709                     PerlIOBuf_pushed
 710                     PerlIOBuf_read
 711                     PerlIOBuf_seek
 712                     PerlIOBuf_set_ptrcnt
 713                     PerlIOBuf_tell
 714                     PerlIOBuf_unread
 715                     PerlIOBuf_write
 716                     PerlIO_allocate
 717                     PerlIO_apply_layera
 718                     PerlIO_apply_layers
 719                     PerlIO_arg_fetch
 720                     PerlIO_debug
 721                     PerlIO_define_layer
 722                     PerlIO_find_layer
 723                     PerlIO_isutf8
 724                     PerlIO_layer_fetch
 725                     PerlIO_list_alloc
 726                     PerlIO_list_free
 727                     PerlIO_modestr
 728                     PerlIO_parse_layers
 729                     PerlIO_pending
 730                     PerlIO_perlio
 731                     PerlIO_pop
 732                     PerlIO_push
 733                     PerlIO_sv_dup
 734                     Perl_PerlIO_clearerr
 735                     Perl_PerlIO_close
 736                     Perl_PerlIO_context_layers
 737                     Perl_PerlIO_eof
 738                     Perl_PerlIO_error
 739                     Perl_PerlIO_fileno
 740                     Perl_PerlIO_fill
 741                     Perl_PerlIO_flush
 742                     Perl_PerlIO_get_base
 743                     Perl_PerlIO_get_bufsiz
 744                     Perl_PerlIO_get_cnt
 745                     Perl_PerlIO_get_ptr
 746                     Perl_PerlIO_read
 747                     Perl_PerlIO_restore_errno
 748                     Perl_PerlIO_save_errno
 749                     Perl_PerlIO_seek
 750                     Perl_PerlIO_set_cnt
 751                     Perl_PerlIO_set_ptrcnt
 752                     Perl_PerlIO_setlinebuf
 753                     Perl_PerlIO_stderr
 754                     Perl_PerlIO_stdin
 755                     Perl_PerlIO_stdout
 756                     Perl_PerlIO_tell
 757                     Perl_PerlIO_unread
 758                     Perl_PerlIO_write
 759 );
 760
 761 # Export the symbols that make up the PerlIO abstraction, regardless
 762 # of its implementation - read from a file
 763 push @syms, 'perlio.sym';
 764
 765 # PerlIO with layers - export implementation
 766 try_symbols(@layer_syms, 'perlsio_binmode');
 767
 768
 769 unless ($define{'USE_QUADMATH'}) {
 770   ++$skip{Perl_quadmath_format_needed};
 771   ++$skip{Perl_quadmath_format_single};
 772 }
 773
 774 unless ($Config{d_mbrlen}) {
 775     ++$skip{PL_mbrlen_ps};
 776 }
 777
 778 unless ($Config{d_mbrtowc}) {
 779     ++$skip{PL_mbrtowc_ps};
 780 }
 781
 782 unless ($Config{d_wcrtomb}) {
 783     ++$skip{PL_wcrtomb_ps};
 784 }
 785
 786 ###############################################################################
 787
 788 # At this point all skip lists should be completed, as we are about to test
 789 # many symbols against them.
 790
 791 {
 792     my %seen;
 793     my ($embed_array) = setup_embed($ARGS{TARG_DIR});
 794     my $excludedre = $define{'NO_MATHOMS'} ? qr/[emiIsb]/ : qr/[emiIs]/;
 795
 796     foreach (@$embed_array) {
 797         my $embed= $_->{embed}
 798             or next;
 799         my ($flags, $retval, $func, $args) = @{$embed}{qw(flags return_type name args)};
 800         next unless $func;
 801         if (($flags =~ /[AXC]/ && $flags !~ $excludedre)
 802             || (!$define{'NO_MATHOMS'} && $flags =~ /b/))
 803         {
 804             # public API, so export
 805
 806             # If a function is defined twice, for example before and after
 807             # an #else, only export its name once. Important to do this test
 808             # within the block, as the *first* definition may have flags which
 809             # mean "don't export"
 810             next if $seen{$func}++;
 811             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
 812             $func = "Perl_$func" if ($flags =~ /[psX]/ && $func !~ /^Perl_/);
 813             ++$export{$func} unless exists $skip{$func};
 814         }
 815     }
 816 }
 817
 818 foreach (@syms) {
 819     my $syms = $ARGS{TARG_DIR} . $_;
 820     open my $global, '<', $syms or die "failed to open $syms: $!\n";
 821     while (<$global>) {
 822         next unless /^([A-Za-z].*)/;
 823         my $symbol = "$1";
 824         ++$export{$symbol} unless exists $skip{$symbol};
 825     }
 826 }
 827
 828 # variables
 829
 830 readvar('perlvars.h', \%export);
 831 unless ($define{MULTIPLICITY}) {
 832     readvar('intrpvar.h', \%export);
 833 }
 834
 835 # Oddities from PerlIO
 836 # All have alternate implementations in perlio.c, so always exist.
 837 # Should they be considered to be part of the API?
 838 try_symbols(qw(
 839                     PerlIO_binmode
 840                     PerlIO_getpos
 841                     PerlIO_init
 842                     PerlIO_setpos
 843                     PerlIO_tmpfile
 844              ));
 845
 846 if (PLATFORM eq 'win32') {
 847     try_symbols(qw(
 848                     win32_free_childdir
 849                     win32_free_childenv
 850                     win32_get_childdir
 851                     win32_get_childenv
 852                     win32_spawnvp
 853                     Perl_init_os_extras
 854                     Perl_win32_init
 855                     Perl_win32_term
 856                     RunPerl
 857                     win32_async_check
 858                     win32_errno
 859                     win32_environ
 860                     win32_abort
 861                     win32_fstat
 862                     win32_stat
 863                     win32_pipe
 864                     win32_popen
 865                     win32_pclose
 866                     win32_rename
 867                     win32_setmode
 868                     win32_chsize
 869                     win32_lseek
 870                     win32_tell
 871                     win32_dup
 872                     win32_dup2
 873                     win32_open
 874                     win32_close
 875                     win32_eof
 876                     win32_isatty
 877                     win32_read
 878                     win32_write
 879                     win32_mkdir
 880                     win32_rmdir
 881                     win32_chdir
 882                     win32_flock
 883                     win32_execv
 884                     win32_execvp
 885                     win32_htons
 886                     win32_ntohs
 887                     win32_htonl
 888                     win32_ntohl
 889                     win32_inet_addr
 890                     win32_inet_ntoa
 891                     win32_socket
 892                     win32_bind
 893                     win32_listen
 894                     win32_accept
 895                     win32_connect
 896                     win32_send
 897                     win32_sendto
 898                     win32_recv
 899                     win32_recvfrom
 900                     win32_shutdown
 901                     win32_closesocket
 902                     win32_ioctlsocket
 903                     win32_setsockopt
 904                     win32_getsockopt
 905                     win32_getpeername
 906                     win32_getsockname
 907                     win32_gethostname
 908                     win32_gethostbyname
 909                     win32_gethostbyaddr
 910                     win32_getprotobyname
 911                     win32_getprotobynumber
 912                     win32_getservbyname
 913                     win32_getservbyport
 914                     win32_select
 915                     win32_endhostent
 916                     win32_endnetent
 917                     win32_endprotoent
 918                     win32_endservent
 919                     win32_getnetent
 920                     win32_getnetbyname
 921                     win32_getnetbyaddr
 922                     win32_getprotoent
 923                     win32_getservent
 924                     win32_sethostent
 925                     win32_setnetent
 926                     win32_setprotoent
 927                     win32_setservent
 928                     win32_getenv
 929                     win32_putenv
 930                     win32_perror
 931                     win32_malloc
 932                     win32_calloc
 933                     win32_realloc
 934                     win32_free
 935                     win32_sleep
 936                     win32_pause
 937                     win32_times
 938                     win32_access
 939                     win32_alarm
 940                     win32_chmod
 941                     win32_open_osfhandle
 942                     win32_get_osfhandle
 943                     win32_ioctl
 944                     win32_link
 945                     win32_unlink
 946                     win32_utime
 947                     win32_gettimeofday
 948                     win32_uname
 949                     win32_wait
 950                     win32_waitpid
 951                     win32_kill
 952                     win32_str_os_error
 953                     win32_opendir
 954                     win32_readdir
 955                     win32_telldir
 956                     win32_seekdir
 957                     win32_rewinddir
 958                     win32_closedir
 959                     win32_longpath
 960                     win32_ansipath
 961                     win32_os_id
 962                     win32_getpid
 963                     win32_crypt
 964                     win32_dynaload
 965                     win32_clearenv
 966                     win32_stdin
 967                     win32_stdout
 968                     win32_stderr
 969                     win32_ferror
 970                     win32_feof
 971                     win32_strerror
 972                     win32_fprintf
 973                     win32_printf
 974                     win32_vfprintf
 975                     win32_vprintf
 976                     win32_fread
 977                     win32_fwrite
 978                     win32_fopen
 979                     win32_fdopen
 980                     win32_freopen
 981                     win32_fclose
 982                     win32_fputs
 983                     win32_fputc
 984                     win32_ungetc
 985                     win32_getc
 986                     win32_fileno
 987                     win32_clearerr
 988                     win32_fflush
 989                     win32_ftell
 990                     win32_fseek
 991                     win32_fgetpos
 992                     win32_fsetpos
 993                     win32_rewind
 994                     win32_tmpfile
 995                     win32_setbuf
 996                     win32_setvbuf
 997                     win32_flushall
 998                     win32_fcloseall
 999                     win32_fgets
1000                     win32_gets
1001                     win32_fgetc
1002                     win32_putc
1003                     win32_puts
1004                     win32_getchar
1005                     win32_putchar
1006                     win32_symlink
1007                     win32_lstat
1008                     win32_readlink
1009                  ));
1010 }
1011 elsif (PLATFORM eq 'vms') {
1012     try_symbols(qw(
1013                       Perl_cando
1014                       Perl_cando_by_name
1015                       Perl_closedir
1016                       Perl_csighandler_init
1017                       Perl_do_rmdir
1018                       Perl_fileify_dirspec
1019                       Perl_fileify_dirspec_ts
1020                       Perl_fileify_dirspec_utf8
1021                       Perl_fileify_dirspec_utf8_ts
1022                       Perl_flex_fstat
1023                       Perl_flex_lstat
1024                       Perl_flex_stat
1025                       Perl_kill_file
1026                       Perl_my_chdir
1027                       Perl_my_chmod
1028                       Perl_my_crypt
1029                       Perl_my_endpwent
1030                       Perl_my_fclose
1031                       Perl_my_fdopen
1032                       Perl_my_fgetname
1033                       Perl_my_flush
1034                       Perl_my_fwrite
1035                       Perl_my_gconvert
1036                       Perl_my_getenv
1037                       Perl_my_getenv_len
1038                       Perl_my_getpwnam
1039                       Perl_my_getpwuid
1040                       Perl_my_gmtime
1041                       Perl_my_kill
1042                       Perl_my_killpg
1043                       Perl_my_localtime
1044                       Perl_my_mkdir
1045                       Perl_my_sigaction
1046                       Perl_my_symlink
1047                       Perl_my_time
1048                       Perl_my_tmpfile
1049                       Perl_my_trnlnm
1050                       Perl_my_utime
1051                       Perl_my_waitpid
1052                       Perl_opendir
1053                       Perl_pathify_dirspec
1054                       Perl_pathify_dirspec_ts
1055                       Perl_pathify_dirspec_utf8
1056                       Perl_pathify_dirspec_utf8_ts
1057                       Perl_readdir
1058                       Perl_readdir_r
1059                       Perl_rename
1060                       Perl_rmscopy
1061                       Perl_rmsexpand
1062                       Perl_rmsexpand_ts
1063                       Perl_rmsexpand_utf8
1064                       Perl_rmsexpand_utf8_ts
1065                       Perl_seekdir
1066                       Perl_sig_to_vmscondition
1067                       Perl_telldir
1068                       Perl_tounixpath
1069                       Perl_tounixpath_ts
1070                       Perl_tounixpath_utf8
1071                       Perl_tounixpath_utf8_ts
1072                       Perl_tounixspec
1073                       Perl_tounixspec_ts
1074                       Perl_tounixspec_utf8
1075                       Perl_tounixspec_utf8_ts
1076                       Perl_tovmspath
1077                       Perl_tovmspath_ts
1078                       Perl_tovmspath_utf8
1079                       Perl_tovmspath_utf8_ts
1080                       Perl_tovmsspec
1081                       Perl_tovmsspec_ts
1082                       Perl_tovmsspec_utf8
1083                       Perl_tovmsspec_utf8_ts
1084                       Perl_trim_unixpath
1085                       Perl_vms_case_tolerant
1086                       Perl_vms_do_aexec
1087                       Perl_vms_do_exec
1088                       Perl_vms_image_init
1089                       Perl_vms_realpath
1090                       Perl_vmssetenv
1091                       Perl_vmssetuserlnm
1092                       Perl_vmstrnenv
1093                       PerlIO_openn
1094                  ));
1095 }
1096 elsif (PLATFORM eq 'os2') {
1097     try_symbols(qw(
1098                       ctermid
1099                       get_sysinfo
1100                       Perl_OS2_init
1101                       Perl_OS2_init3
1102                       Perl_OS2_term
1103                       OS2_Perl_data
1104                       dlopen
1105                       dlsym
1106                       dlerror
1107                       dlclose
1108                       dup2
1109                       dup
1110                       my_tmpfile
1111                       my_tmpnam
1112                       my_flock
1113                       my_rmdir
1114                       my_mkdir
1115                       my_getpwuid
1116                       my_getpwnam
1117                       my_getpwent
1118                       my_setpwent
1119                       my_endpwent
1120                       fork_with_resources
1121                       croak_with_os2error
1122                       setgrent
1123                       endgrent
1124                       getgrent
1125                       malloc_mutex
1126                       threads_mutex
1127                       nthreads
1128                       nthreads_cond
1129                       os2_cond_wait
1130                       os2_stat
1131                       os2_execname
1132                       async_mssleep
1133                       msCounter
1134                       InfoTable
1135                       pthread_join
1136                       pthread_create
1137                       pthread_detach
1138                       XS_Cwd_change_drive
1139                       XS_Cwd_current_drive
1140                       XS_Cwd_extLibpath
1141                       XS_Cwd_extLibpath_set
1142                       XS_Cwd_sys_abspath
1143                       XS_Cwd_sys_chdir
1144                       XS_Cwd_sys_cwd
1145                       XS_Cwd_sys_is_absolute
1146                       XS_Cwd_sys_is_relative
1147                       XS_Cwd_sys_is_rooted
1148                       XS_DynaLoader_mod2fname
1149                       XS_File__Copy_syscopy
1150                       Perl_Register_MQ
1151                       Perl_Deregister_MQ
1152                       Perl_Serve_Messages
1153                       Perl_Process_Messages
1154                       init_PMWIN_entries
1155                       PMWIN_entries
1156                       Perl_hab_GET
1157                       loadByOrdinal
1158                       pExtFCN
1159                       os2error
1160                       ResetWinError
1161                       CroakWinError
1162                       PL_do_undump
1163                  ));
1164 }
1165
1166 # When added this code was only run for Win32 (and WinCE at the time)
1167 # Currently only Win32 links static extensions into the shared library.
1168 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1169 # static extensions with -fPIC, but links them to perl, not libperl.so
1170 # The VMS build scripts don't yet implement static extensions at all.
1171
1172 if (PLATFORM eq 'win32') {
1173     # records of type boot_module for statically linked modules (except Dynaloader)
1174     my $static_ext = $Config{static_ext} // "";
1175     $static_ext =~ s/\//__/g;
1176     $static_ext =~ s/\bDynaLoader\b//;
1177     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1178     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1179 }
1180
1181 if (PLATFORM eq 'os2') {
1182     my (%mapped, @missing);
1183     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1184     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1185     close MAP or die 'Cannot close miniperl.map';
1186
1187     @missing = grep { !exists $mapped{$_} }
1188                     keys %export;
1189     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1190     delete $export{$_} foreach @missing;
1191 }
1192
1193
1194 if (ord "A" != 65) {
1195     for my $symbol (qw( PL_a2e PL_e2a PL_e2utf PL_utf2e )) {
1196         try_symbols($symbol);
1197     }
1198 }
1199
1200
1201 ###############################################################################
1202
1203 # Now all symbols should be defined because next we are going to output them.
1204
1205 # Start with platform specific headers:
1206
1207 if (PLATFORM eq 'win32') {
1208     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1209         : "perl$Config{api_revision}$Config{api_version}";
1210     print "LIBRARY $dll\n";
1211     # The DESCRIPTION module definition file statement is not supported
1212     # by VC7 onwards.
1213     if ($ARGS{CCTYPE} eq 'GCC') {
1214         print "DESCRIPTION 'Perl interpreter'\n";
1215     }
1216     print "EXPORTS\n";
1217 }
1218 elsif (PLATFORM eq 'os2') {
1219     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1220     $v .= '-thread' if $Config{archname} =~ /-thread/;
1221     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1222     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1223     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1224     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1225     print <<"---EOP---";
1226 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1227 $d
1228 STACKSIZE 32768
1229 CODE LOADONCALL
1230 DATA LOADONCALL NONSHARED MULTIPLE
1231 EXPORTS
1232 ---EOP---
1233 }
1234 elsif (PLATFORM eq 'aix') {
1235     my $OSVER = `uname -v`;
1236     chop $OSVER;
1237     my $OSREL = `uname -r`;
1238     chop $OSREL;
1239     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1240         print "#! ..\n";
1241     } else {
1242         print "#!\n";
1243     }
1244 }
1245
1246 # Then the symbols
1247
1248 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1249 foreach my $symbol (@symbols) {
1250     if (PLATFORM eq 'win32') {
1251         # Remembering the origin file of each symbol is an alternative to PL_ matching
1252         if (substr($symbol, 0, 3) eq 'PL_') {
1253             print "\t$symbol DATA\n";
1254         }
1255         else {
1256             print "\t$symbol\n";
1257         }
1258     }
1259     elsif (PLATFORM eq 'os2') {
1260         printf qq(    %-31s \@%s\n),
1261           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1262         printf qq(    %-31s \@%s\n),
1263           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1264           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1265           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1266     } else {
1267         print "$symbol\n";
1268     }
1269 }
1270
1271 # Then platform specific footers.
1272
1273 if (PLATFORM eq 'os2') {
1274     print <<EOP;
1275     dll_perlmain=main
1276     fill_extLibpath
1277     dir_subst
1278     Perl_OS2_handler_install
1279
1280 ; LAST_ORDINAL=$sym_ord
1281 EOP
1282 }
1283
1284 1;