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