makedef.pl

   1 #./perl -w
   2 #
   3 # Create the export list for perl.
   4 #
   5 # Needed by WIN32 and OS/2 for creating perl.dll,
   6 # and by AIX for creating libperl.a when -Duseshrplib is in effect,
   7 # and by VMS for creating perlshr.exe.
   8 #
   9 # Reads from information stored in
  10 #
  11 #    %Config::Config (ie config.sh)
  12 #    config.h
  13 #    embed.fnc
  14 #    globvar.sym
  15 #    intrpvar.h
  16 #    miniperl.map (on OS/2)
  17 #    perl5.def    (on OS/2; this is the old version of the file being made)
  18 #    perlio.sym
  19 #    perlvars.h
  20 #    regen/opcodes
  21 #
  22 # plus long lists of function names hard-coded directly in this script.
  23 #
  24 # Writes the result to STDOUT.
  25 #
  26 # Normally this script is invoked from a makefile (e.g. win32/Makefile),
  27 # which redirects STDOUT to a suitable file, such as:
  28 #
  29 #    perl5.def   OS/2
  30 #    perldll.def Windows
  31 #    perl.exp    AIX
  32 #    perl.imp    NetWare
  33 #    makedef.lis VMS
  34
  35 my $fold;
  36 my %ARGS;
  37 my %define;
  38
  39 BEGIN {
  40     BEGIN { unshift @INC, "lib" }
  41     use Config;
  42     use strict;
  43
  44     %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
  45
  46     sub process_cc_flags {
  47         foreach (map {split /\s+/, $_} @_) {
  48             $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
  49         }
  50     }
  51
  52     while (@ARGV) {
  53         my $flag = shift;
  54         if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
  55             process_cc_flags($1);
  56         } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
  57             $ARGS{$1} = $2;
  58         } elsif ($flag eq '--sort-fold') {
  59             ++$fold;
  60         }
  61     }
  62     my @PLATFORM = qw(aix win32 os2 netware vms test);
  63     my %PLATFORM;
  64     @PLATFORM{@PLATFORM} = ();
  65
  66     die "PLATFORM undefined, must be one of: @PLATFORM\n"
  67         unless defined $ARGS{PLATFORM};
  68     die "PLATFORM must be one of: @PLATFORM\n"
  69         unless exists $PLATFORM{$ARGS{PLATFORM}};
  70 }
  71 use constant PLATFORM => $ARGS{PLATFORM};
  72
  73 require "./$ARGS{TARG_DIR}regen/embed_lib.pl";
  74
  75 # Is the following guard strictly necessary? Added during refactoring
  76 # to keep the same behaviour when merging other code into here.
  77 process_cc_flags(@Config{qw(ccflags optimize)})
  78     if $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'netware';
  79
  80 # Add the compile-time options that miniperl was built with to %define.
  81 # On Win32 these are not the same options as perl itself will be built
  82 # with since miniperl is built with a canned config (one of the win32/
  83 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
  84 # but they do include some #define's that are hard-coded in various
  85 # source files and header files and don't include any BUILDOPT's that
  86 # the user might have chosen to disable because the canned configs are
  87 # minimal configs that don't include any of those options.
  88
  89 my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
  90 print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
  91 $define{$_} = 1 foreach @options;
  92
  93 my %exportperlmalloc =
  94     (
  95        Perl_malloc              =>      "malloc",
  96        Perl_mfree               =>      "free",
  97        Perl_realloc             =>      "realloc",
  98        Perl_calloc              =>      "calloc",
  99     );
 100
 101 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
 102
 103 my $config_h = 'config.h';
 104 open(CFG, '<', $config_h) || die "Cannot open $config_h: $!\n";
 105 while (<CFG>) {
 106     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
 107                                            |KILL_BY_SIGPRC
 108                                            |(?:PERL|USE|HAS)_\w+)\b/x;
 109 }
 110 close(CFG);
 111
 112 # perl.h logic duplication begins
 113
 114 if ($define{USE_ITHREADS}) {
 115     if (!$define{MULTIPLICITY}) {
 116         $define{MULTIPLICITY} = 1;
 117     }
 118 }
 119
 120 $define{PERL_IMPLICIT_CONTEXT} ||=
 121     $define{USE_ITHREADS} ||
 122     $define{MULTIPLICITY} ;
 123
 124 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'netware') {
 125     $define{USE_REENTRANT_API} = 1;
 126 }
 127
 128 if (! $define{NO_LOCALE}) {
 129     if ( ! $define{NO_POSIX_2008_LOCALE}
 130         && $define{HAS_NEWLOCALE}
 131         && $define{HAS_USELOCALE}
 132         && $define{HAS_DUPLOCALE}
 133         && $define{HAS_FREELOCALE})
 134     {
 135         $define{HAS_POSIX_2008_LOCALE} = 1;
 136         $define{USE_LOCALE} = 1;
 137     }
 138     elsif ($define{HAS_SETLOCALE}) {
 139         $define{USE_LOCALE} = 1;
 140     }
 141 }
 142
 143 # https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B#Internal_version_numbering
 144 my $cctype = $ARGS{CCTYPE} =~ s/MSVC//r;
 145 if (! $define{HAS_SETLOCALE} && $define{HAS_POSIX_2008_LOCALE}) {
 146     $define{USE_POSIX_2008_LOCALE} = 1;
 147     $define{USE_THREAD_SAFE_LOCALE} = 1;
 148 }
 149 elsif (   ($define{USE_ITHREADS} || $define{USE_THREAD_SAFE_LOCALE})
 150        && (    $define{HAS_POSIX_2008_LOCALE}
 151            || ($ARGS{PLATFORM} eq 'win32' && (   $cctype !~ /\D/
 152                                               && $cctype >= 80)))
 153        && ! $define{NO_THREAD_SAFE_LOCALE})
 154 {
 155     $define{USE_THREAD_SAFE_LOCALE} = 1 unless $define{USE_THREAD_SAFE_LOCALE};
 156     $define{USE_POSIX_2008_LOCALE} = 1 if $define{HAS_POSIX_2008_LOCALE};
 157 }
 158
 159 if (   $ARGS{PLATFORM} eq 'win32'
 160     && $define{USE_THREAD_SAFE_LOCALE}
 161     && $cctype < 140)
 162 {
 163     $define{TS_W32_BROKEN_LOCALECONV} = 1;
 164 }
 165
 166 # perl.h logic duplication ends
 167
 168 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
 169      unless $ARGS{PLATFORM} eq 'test';
 170
 171 my $sym_ord = 0;
 172 my %ordinal;
 173
 174 if ($ARGS{PLATFORM} eq 'os2') {
 175     if (open my $fh, '<', 'perl5.def') {
 176       while (<$fh>) {
 177         last if /^\s*EXPORTS\b/;
 178       }
 179       while (<$fh>) {
 180         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 181         # This allows skipping ordinals which were used in older versions
 182         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 183       }
 184       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 185     }
 186 }
 187
 188 my %skip;
 189 # All platforms export boot_DynaLoader unconditionally.
 190 my %export = ( boot_DynaLoader => 1 );
 191
 192 sub try_symbols {
 193     foreach my $symbol (@_) {
 194         ++$export{$symbol} unless exists $skip{$symbol};
 195     }
 196 }
 197
 198 sub readvar {
 199     # $hash is the hash that we're adding to. For one of our callers, it will
 200     # actually be the skip hash but that doesn't affect the intent of what
 201     # we're doing, as in that case we skip adding something to the skip hash
 202     # for the second time.
 203
 204     my $file = $ARGS{TARG_DIR} . shift;
 205     my $hash = shift;
 206     my $proc = shift;
 207     open my $vars, '<', $file or die "Cannot open $file: $!\n";
 208
 209     while (<$vars>) {
 210         # All symbols have a Perl_ prefix because that's what embed.h sticks
 211         # in front of them.  The A?I?S?C? is strictly speaking wrong.
 212         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
 213
 214         my $var = "PL_$3";
 215         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
 216         ++$hash->{$symbol} unless exists $skip{$var};
 217     }
 218 }
 219
 220 if ($ARGS{PLATFORM} ne 'os2') {
 221     ++$skip{$_} foreach qw(
 222                      PL_opsave
 223                      Perl_dump_fds
 224                      Perl_my_bcopy
 225                      Perl_my_bzero
 226                      Perl_my_chsize
 227                      Perl_my_htonl
 228                      Perl_my_memcmp
 229                      Perl_my_memset
 230                      Perl_my_ntohl
 231                      Perl_my_swap
 232                          );
 233     if ($ARGS{PLATFORM} eq 'vms') {
 234         ++$skip{PL_statusvalue_posix};
 235         # This is a wrapper if we have symlink, not a replacement
 236         # if we don't.
 237         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
 238     } else {
 239         ++$skip{PL_statusvalue_vms};
 240         ++$skip{PL_perllib_sep};
 241         if ($ARGS{PLATFORM} ne 'aix') {
 242             ++$skip{$_} foreach qw(
 243                                 PL_DBcv
 244                                 PL_generation
 245                                 PL_lastgotoprobe
 246                                 PL_modcount
 247                                 main
 248                                  );
 249         }
 250     }
 251 }
 252
 253 if ($ARGS{PLATFORM} ne 'vms') {
 254     # VMS does its own thing for these symbols.
 255     ++$skip{$_} foreach qw(
 256                         PL_sig_handlers_initted
 257                         PL_sig_ignoring
 258                         PL_sig_defaulting
 259                          );
 260     if ($ARGS{PLATFORM} ne 'win32') {
 261         ++$skip{$_} foreach qw(
 262                             Perl_do_spawn
 263                             Perl_do_spawn_nowait
 264                             Perl_do_aspawn
 265                              );
 266     }
 267 }
 268
 269 if ($ARGS{PLATFORM} ne 'win32') {
 270     ++$skip{$_} foreach qw(
 271                     Perl_my_setlocale
 272                          );
 273 }
 274
 275 unless ($define{UNLINK_ALL_VERSIONS}) {
 276     ++$skip{Perl_unlnk};
 277 }
 278
 279 unless ($define{'DEBUGGING'}) {
 280     ++$skip{$_} foreach qw(
 281                     Perl_debop
 282                     Perl_debprofdump
 283                     Perl_debstack
 284                     Perl_debstackptrs
 285                     Perl_pad_sv
 286                     Perl_pad_setsv
 287                     Perl__setlocale_debug_string
 288                     Perl_set_padlist
 289                     Perl_hv_assert
 290                     PL_watchaddr
 291                     PL_watchok
 292                          );
 293 }
 294
 295 if ($define{'PERL_IMPLICIT_SYS'}) {
 296     ++$skip{$_} foreach qw(
 297                     Perl_my_popen
 298                     Perl_my_pclose
 299                          );
 300     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
 301     ++$export{perl_clone_host} if $define{USE_ITHREADS};
 302 }
 303 else {
 304     ++$skip{$_} foreach qw(
 305                     PL_Mem
 306                     PL_MemShared
 307                     PL_MemParse
 308                     PL_Env
 309                     PL_StdIO
 310                     PL_LIO
 311                     PL_Dir
 312                     PL_Sock
 313                     PL_Proc
 314                     perl_alloc_using
 315                     perl_clone_using
 316                          );
 317 }
 318
 319 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
 320     ++$skip{Perl_sv_setsv_cow};
 321 }
 322
 323 unless ($define{PERL_SAWAMPERSAND}) {
 324     ++$skip{PL_sawampersand};
 325 }
 326
 327 unless ($define{'USE_REENTRANT_API'}) {
 328     ++$skip{PL_reentrant_buffer};
 329 }
 330
 331 if ($define{'MYMALLOC'}) {
 332     try_symbols(qw(
 333                     Perl_dump_mstats
 334                     Perl_get_mstats
 335                     Perl_strdup
 336                     Perl_putenv
 337                     MallocCfg_ptr
 338                     MallocCfgP_ptr
 339                     ));
 340     unless ($define{USE_ITHREADS}) {
 341         ++$skip{PL_malloc_mutex}
 342     }
 343 }
 344 else {
 345     ++$skip{$_} foreach qw(
 346                     PL_malloc_mutex
 347                     Perl_dump_mstats
 348                     Perl_get_mstats
 349                     MallocCfg_ptr
 350                     MallocCfgP_ptr
 351                          );
 352 }
 353
 354 if ($define{'PERL_USE_SAFE_PUTENV'}) {
 355     ++$skip{PL_use_safe_putenv};
 356 }
 357
 358 unless ($define{'USE_ITHREADS'}) {
 359     ++$skip{PL_thr_key};
 360     ++$skip{PL_user_prop_mutex};
 361     ++$skip{PL_user_def_props_aTHX};
 362 }
 363
 364 unless ($define{'USE_ITHREADS'}) {
 365     ++$skip{$_} foreach qw(
 366                     PL_keyword_plugin_mutex
 367                     PL_check_mutex
 368                     PL_op_mutex
 369                     PL_regex_pad
 370                     PL_regex_padav
 371                     PL_dollarzero_mutex
 372                     PL_env_mutex
 373                     PL_hints_mutex
 374                     PL_locale_mutex
 375                     PL_lc_numeric_mutex
 376                     PL_lc_numeric_mutex_depth
 377                     PL_my_ctx_mutex
 378                     PL_perlio_mutex
 379                     PL_stashpad
 380                     PL_stashpadix
 381                     PL_stashpadmax
 382                     Perl_alloccopstash
 383                     Perl_allocfilegv
 384                     Perl_clone_params_del
 385                     Perl_clone_params_new
 386                     Perl_parser_dup
 387                     Perl_dirp_dup
 388                     Perl_cx_dup
 389                     Perl_si_dup
 390                     Perl_any_dup
 391                     Perl_ss_dup
 392                     Perl_fp_dup
 393                     Perl_gp_dup
 394                     Perl_he_dup
 395                     Perl_mg_dup
 396                     Perl_re_dup_guts
 397                     Perl_sv_dup
 398                     Perl_sv_dup_inc
 399                     Perl_rvpv_dup
 400                     Perl_hek_dup
 401                     Perl_sys_intern_dup
 402                     perl_clone
 403                     perl_clone_using
 404                     Perl_stashpv_hvname_match
 405                     Perl_regdupe_internal
 406                     Perl_newPADOP
 407                          );
 408 }
 409
 410 if (      $define{NO_LOCALE}
 411     || (! $define{USE_ITHREADS} && ! $define{USE_THREAD_SAFE_LOCALE}))
 412 {
 413     ++$skip{$_} foreach qw(
 414         PL_C_locale_obj
 415         PL_curlocales
 416     );
 417 }
 418
 419 unless ( $define{'HAS_NEWLOCALE'}
 420     &&   $define{'HAS_FREELOCALE'}
 421     &&   $define{'HAS_USELOCALE'}
 422     && ! $define{'NO_POSIX_2008_LOCALE'})
 423 {
 424     ++$skip{$_} foreach qw(
 425         PL_C_locale_obj
 426         PL_underlying_numeric_obj
 427     );
 428 }
 429
 430 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 431     ++$skip{$_} foreach qw(
 432                     PL_my_cxt_index
 433                     PL_my_cxt_list
 434                     PL_my_cxt_size
 435                     PL_my_cxt_keys
 436                     PL_my_cxt_keys_size
 437                     Perl_croak_nocontext
 438                     Perl_die_nocontext
 439                     Perl_deb_nocontext
 440                     Perl_form_nocontext
 441                     Perl_load_module_nocontext
 442                     Perl_mess_nocontext
 443                     Perl_warn_nocontext
 444                     Perl_warner_nocontext
 445                     Perl_newSVpvf_nocontext
 446                     Perl_sv_catpvf_nocontext
 447                     Perl_sv_setpvf_nocontext
 448                     Perl_sv_catpvf_mg_nocontext
 449                     Perl_sv_setpvf_mg_nocontext
 450                     Perl_my_cxt_init
 451                     Perl_my_cxt_index
 452                          );
 453 }
 454
 455 if ($define{USE_THREAD_SAFE_LOCALE}) {
 456     ++$skip{PL_lc_numeric_mutex};
 457     ++$skip{PL_lc_numeric_mutex_depth};
 458     if (! $define{TS_W32_BROKEN_LOCALECONV}) {
 459         ++$skip{PL_locale_mutex};
 460     }
 461 }
 462
 463 unless ($define{'USE_DTRACE'}) {
 464     ++$skip{$_} foreach qw(
 465                     Perl_dtrace_probe_call
 466                     Perl_dtrace_probe_load
 467                     Perl_dtrace_probe_op
 468                     Perl_dtrace_probe_phase
 469                 );
 470 }
 471
 472 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 473     ++$skip{PL_sv_serial};
 474 }
 475
 476 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 477     ++$skip{PL_dumper_fd};
 478 }
 479
 480 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 481     ++$skip{Perl_gv_SVadd};
 482 }
 483
 484 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 485     ++$skip{PL_pidstatus};
 486 }
 487
 488 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 489     ++$skip{PL_memory_debug_header};
 490 }
 491
 492 unless ($define{'MULTIPLICITY'}) {
 493     ++$skip{$_} foreach qw(
 494                     PL_interp_size
 495                     PL_interp_size_5_18_0
 496                     PL_sv_yes
 497                     PL_sv_undef
 498                     PL_sv_no
 499                     PL_sv_zero
 500                          );
 501 }
 502
 503 unless ($define{HAS_MMAP}) {
 504     ++$skip{PL_mmap_page_size};
 505 }
 506
 507 if ($define{HAS_SIGACTION}) {
 508     ++$skip{PL_sig_trapped};
 509
 510     if ($ARGS{PLATFORM} eq 'vms') {
 511         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
 512         ++$skip{PL_sig_ignoring};
 513         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
 514     }
 515 }
 516
 517 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
 518     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
 519     ++$skip{Perl_csighandler_init};
 520     ++$skip{Perl_my_kill};
 521     ++$skip{Perl_sig_to_vmscondition};
 522     ++$skip{PL_sig_defaulting};
 523     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
 524 }
 525
 526 if ($define{'HAS_STRNLEN'})
 527 {
 528     ++$skip{Perl_my_strnlen};
 529 }
 530
 531 unless ($define{USE_LOCALE_COLLATE}) {
 532     ++$skip{$_} foreach qw(
 533                     PL_collation_ix
 534                     PL_collation_name
 535                     PL_collation_standard
 536                     PL_collxfrm_base
 537                     PL_collxfrm_mult
 538                     Perl_sv_collxfrm
 539                     Perl_sv_collxfrm_flags
 540                     PL_strxfrm_NUL_replacement
 541                     PL_strxfrm_is_behaved
 542                     PL_strxfrm_max_cp
 543                          );
 544 }
 545
 546 unless ($define{USE_LOCALE_NUMERIC}) {
 547     ++$skip{$_} foreach qw(
 548                     PL_numeric_local
 549                     PL_numeric_name
 550                     PL_numeric_radix_sv
 551                     PL_numeric_standard
 552                     PL_numeric_underlying
 553                     PL_numeric_underlying_is_standard
 554                     PL_underlying_numeric_obj
 555                          );
 556 }
 557
 558 unless ($define{'USE_C_BACKTRACE'}) {
 559     ++$skip{Perl_get_c_backtrace_dump};
 560     ++$skip{Perl_dump_c_backtrace};
 561 }
 562
 563 unless ($define{HAVE_INTERP_INTERN}) {
 564     ++$skip{$_} foreach qw(
 565                     Perl_sys_intern_clear
 566                     Perl_sys_intern_dup
 567                     Perl_sys_intern_init
 568                     PL_sys_intern
 569                          );
 570 }
 571
 572 if ($define{HAS_SIGNBIT}) {
 573     ++$skip{Perl_signbit};
 574 }
 575
 576 ++$skip{PL_op_exec_cnt}
 577     unless $define{PERL_TRACE_OPS};
 578
 579 ++$skip{PL_hash_chars}
 580     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
 581
 582 # functions from *.sym files
 583
 584 my @syms = qw(globvar.sym);
 585
 586 # Symbols that are the public face of the PerlIO layers implementation
 587 # These are in _addition to_ the public face of the abstraction
 588 # and need to be exported to allow XS modules to implement layers
 589 my @layer_syms = qw(
 590                     PerlIOBase_binmode
 591                     PerlIOBase_clearerr
 592                     PerlIOBase_close
 593                     PerlIOBase_dup
 594                     PerlIOBase_eof
 595                     PerlIOBase_error
 596                     PerlIOBase_fileno
 597                     PerlIOBase_open
 598                     PerlIOBase_noop_fail
 599                     PerlIOBase_noop_ok
 600                     PerlIOBase_popped
 601                     PerlIOBase_pushed
 602                     PerlIOBase_read
 603                     PerlIOBase_setlinebuf
 604                     PerlIOBase_unread
 605                     PerlIOBuf_bufsiz
 606                     PerlIOBuf_close
 607                     PerlIOBuf_dup
 608                     PerlIOBuf_fill
 609                     PerlIOBuf_flush
 610                     PerlIOBuf_get_base
 611                     PerlIOBuf_get_cnt
 612                     PerlIOBuf_get_ptr
 613                     PerlIOBuf_open
 614                     PerlIOBuf_popped
 615                     PerlIOBuf_pushed
 616                     PerlIOBuf_read
 617                     PerlIOBuf_seek
 618                     PerlIOBuf_set_ptrcnt
 619                     PerlIOBuf_tell
 620                     PerlIOBuf_unread
 621                     PerlIOBuf_write
 622                     PerlIO_allocate
 623                     PerlIO_apply_layera
 624                     PerlIO_apply_layers
 625                     PerlIO_arg_fetch
 626                     PerlIO_debug
 627                     PerlIO_define_layer
 628                     PerlIO_find_layer
 629                     PerlIO_isutf8
 630                     PerlIO_layer_fetch
 631                     PerlIO_list_alloc
 632                     PerlIO_list_free
 633                     PerlIO_modestr
 634                     PerlIO_parse_layers
 635                     PerlIO_pending
 636                     PerlIO_perlio
 637                     PerlIO_pop
 638                     PerlIO_push
 639                     PerlIO_sv_dup
 640                     Perl_PerlIO_clearerr
 641                     Perl_PerlIO_close
 642                     Perl_PerlIO_context_layers
 643                     Perl_PerlIO_eof
 644                     Perl_PerlIO_error
 645                     Perl_PerlIO_fileno
 646                     Perl_PerlIO_fill
 647                     Perl_PerlIO_flush
 648                     Perl_PerlIO_get_base
 649                     Perl_PerlIO_get_bufsiz
 650                     Perl_PerlIO_get_cnt
 651                     Perl_PerlIO_get_ptr
 652                     Perl_PerlIO_read
 653                     Perl_PerlIO_restore_errno
 654                     Perl_PerlIO_save_errno
 655                     Perl_PerlIO_seek
 656                     Perl_PerlIO_set_cnt
 657                     Perl_PerlIO_set_ptrcnt
 658                     Perl_PerlIO_setlinebuf
 659                     Perl_PerlIO_stderr
 660                     Perl_PerlIO_stdin
 661                     Perl_PerlIO_stdout
 662                     Perl_PerlIO_tell
 663                     Perl_PerlIO_unread
 664                     Perl_PerlIO_write
 665 );
 666 if ($ARGS{PLATFORM} eq 'netware') {
 667     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
 668 }
 669
 670 # Export the symbols that make up the PerlIO abstraction, regardless
 671 # of its implementation - read from a file
 672 push @syms, 'perlio.sym';
 673
 674 # PerlIO with layers - export implementation
 675 try_symbols(@layer_syms, 'perlsio_binmode');
 676
 677
 678 unless ($define{'USE_QUADMATH'}) {
 679   ++$skip{Perl_quadmath_format_needed};
 680   ++$skip{Perl_quadmath_format_single};
 681 }
 682
 683 unless ($Config{d_mbrlen}) {
 684     ++$skip{PL_mbrlen_ps};
 685 }
 686
 687 unless ($Config{d_mbrtowc}) {
 688     ++$skip{PL_mbrtowc_ps};
 689 }
 690
 691 unless ($Config{d_wcrtomb}) {
 692     ++$skip{PL_wcrtomb_ps};
 693 }
 694
 695 ###############################################################################
 696
 697 # At this point all skip lists should be completed, as we are about to test
 698 # many symbols against them.
 699
 700 {
 701     my %seen;
 702     my ($embed) = setup_embed($ARGS{TARG_DIR});
 703     my $excludedre = $define{'NO_MATHOMS'} ? qr/[emib]/ : qr/[emi]/;
 704
 705     foreach (@$embed) {
 706         my ($flags, $retval, $func, @args) = @$_;
 707         next unless $func;
 708         if (($flags =~ /[AXC]/ && $flags !~ $excludedre)
 709             || (!$define{'NO_MATHOMS'} && $flags =~ /b/))
 710         {
 711             # public API, so export
 712
 713             # If a function is defined twice, for example before and after
 714             # an #else, only export its name once. Important to do this test
 715             # within the block, as the *first* definition may have flags which
 716             # mean "don't export"
 717             next if $seen{$func}++;
 718             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
 719             $func = "Perl_$func" if ($flags =~ /[pX]/ && $func !~ /^Perl_/);
 720             ++$export{$func} unless exists $skip{$func};
 721         }
 722     }
 723 }
 724
 725 foreach (@syms) {
 726     my $syms = $ARGS{TARG_DIR} . $_;
 727     open my $global, '<', $syms or die "failed to open $syms: $!\n";
 728     while (<$global>) {
 729         next unless /^([A-Za-z].*)/;
 730         my $symbol = "$1";
 731         ++$export{$symbol} unless exists $skip{$symbol};
 732     }
 733 }
 734
 735 # variables
 736
 737 readvar('perlvars.h', \%export);
 738 unless ($define{MULTIPLICITY}) {
 739     readvar('intrpvar.h', \%export);
 740 }
 741
 742 # Oddities from PerlIO
 743 # All have alternate implementations in perlio.c, so always exist.
 744 # Should they be considered to be part of the API?
 745 try_symbols(qw(
 746                     PerlIO_binmode
 747                     PerlIO_getpos
 748                     PerlIO_init
 749                     PerlIO_setpos
 750                     PerlIO_tmpfile
 751              ));
 752
 753 if ($ARGS{PLATFORM} eq 'win32') {
 754     try_symbols(qw(
 755                     win32_free_childdir
 756                     win32_free_childenv
 757                     win32_get_childdir
 758                     win32_get_childenv
 759                     win32_spawnvp
 760                     Perl_init_os_extras
 761                     Perl_win32_init
 762                     Perl_win32_term
 763                     RunPerl
 764                     win32_async_check
 765                     win32_errno
 766                     win32_environ
 767                     win32_abort
 768                     win32_fstat
 769                     win32_stat
 770                     win32_pipe
 771                     win32_popen
 772                     win32_pclose
 773                     win32_rename
 774                     win32_setmode
 775                     win32_chsize
 776                     win32_lseek
 777                     win32_tell
 778                     win32_dup
 779                     win32_dup2
 780                     win32_open
 781                     win32_close
 782                     win32_eof
 783                     win32_isatty
 784                     win32_read
 785                     win32_write
 786                     win32_mkdir
 787                     win32_rmdir
 788                     win32_chdir
 789                     win32_flock
 790                     win32_execv
 791                     win32_execvp
 792                     win32_htons
 793                     win32_ntohs
 794                     win32_htonl
 795                     win32_ntohl
 796                     win32_inet_addr
 797                     win32_inet_ntoa
 798                     win32_socket
 799                     win32_bind
 800                     win32_listen
 801                     win32_accept
 802                     win32_connect
 803                     win32_send
 804                     win32_sendto
 805                     win32_recv
 806                     win32_recvfrom
 807                     win32_shutdown
 808                     win32_closesocket
 809                     win32_ioctlsocket
 810                     win32_setsockopt
 811                     win32_getsockopt
 812                     win32_getpeername
 813                     win32_getsockname
 814                     win32_gethostname
 815                     win32_gethostbyname
 816                     win32_gethostbyaddr
 817                     win32_getprotobyname
 818                     win32_getprotobynumber
 819                     win32_getservbyname
 820                     win32_getservbyport
 821                     win32_select
 822                     win32_endhostent
 823                     win32_endnetent
 824                     win32_endprotoent
 825                     win32_endservent
 826                     win32_getnetent
 827                     win32_getnetbyname
 828                     win32_getnetbyaddr
 829                     win32_getprotoent
 830                     win32_getservent
 831                     win32_sethostent
 832                     win32_setnetent
 833                     win32_setprotoent
 834                     win32_setservent
 835                     win32_getenv
 836                     win32_putenv
 837                     win32_perror
 838                     win32_malloc
 839                     win32_calloc
 840                     win32_realloc
 841                     win32_free
 842                     win32_sleep
 843                     win32_pause
 844                     win32_times
 845                     win32_access
 846                     win32_alarm
 847                     win32_chmod
 848                     win32_open_osfhandle
 849                     win32_get_osfhandle
 850                     win32_ioctl
 851                     win32_link
 852                     win32_unlink
 853                     win32_utime
 854                     win32_gettimeofday
 855                     win32_uname
 856                     win32_wait
 857                     win32_waitpid
 858                     win32_kill
 859                     win32_str_os_error
 860                     win32_opendir
 861                     win32_readdir
 862                     win32_telldir
 863                     win32_seekdir
 864                     win32_rewinddir
 865                     win32_closedir
 866                     win32_longpath
 867                     win32_ansipath
 868                     win32_os_id
 869                     win32_getpid
 870                     win32_crypt
 871                     win32_dynaload
 872                     win32_clearenv
 873                     win32_stdin
 874                     win32_stdout
 875                     win32_stderr
 876                     win32_ferror
 877                     win32_feof
 878                     win32_strerror
 879                     win32_fprintf
 880                     win32_printf
 881                     win32_vfprintf
 882                     win32_vprintf
 883                     win32_fread
 884                     win32_fwrite
 885                     win32_fopen
 886                     win32_fdopen
 887                     win32_freopen
 888                     win32_fclose
 889                     win32_fputs
 890                     win32_fputc
 891                     win32_ungetc
 892                     win32_getc
 893                     win32_fileno
 894                     win32_clearerr
 895                     win32_fflush
 896                     win32_ftell
 897                     win32_fseek
 898                     win32_fgetpos
 899                     win32_fsetpos
 900                     win32_rewind
 901                     win32_tmpfile
 902                     win32_setbuf
 903                     win32_setvbuf
 904                     win32_flushall
 905                     win32_fcloseall
 906                     win32_fgets
 907                     win32_gets
 908                     win32_fgetc
 909                     win32_putc
 910                     win32_puts
 911                     win32_getchar
 912                     win32_putchar
 913                  ));
 914 }
 915 elsif ($ARGS{PLATFORM} eq 'vms') {
 916     try_symbols(qw(
 917                       Perl_cando
 918                       Perl_cando_by_name
 919                       Perl_closedir
 920                       Perl_csighandler_init
 921                       Perl_do_rmdir
 922                       Perl_fileify_dirspec
 923                       Perl_fileify_dirspec_ts
 924                       Perl_fileify_dirspec_utf8
 925                       Perl_fileify_dirspec_utf8_ts
 926                       Perl_flex_fstat
 927                       Perl_flex_lstat
 928                       Perl_flex_stat
 929                       Perl_kill_file
 930                       Perl_my_chdir
 931                       Perl_my_chmod
 932                       Perl_my_crypt
 933                       Perl_my_endpwent
 934                       Perl_my_fclose
 935                       Perl_my_fdopen
 936                       Perl_my_fgetname
 937                       Perl_my_flush
 938                       Perl_my_fwrite
 939                       Perl_my_gconvert
 940                       Perl_my_getenv
 941                       Perl_my_getenv_len
 942                       Perl_my_getpwnam
 943                       Perl_my_getpwuid
 944                       Perl_my_gmtime
 945                       Perl_my_kill
 946                       Perl_my_killpg
 947                       Perl_my_localtime
 948                       Perl_my_mkdir
 949                       Perl_my_sigaction
 950                       Perl_my_symlink
 951                       Perl_my_time
 952                       Perl_my_tmpfile
 953                       Perl_my_trnlnm
 954                       Perl_my_utime
 955                       Perl_my_waitpid
 956                       Perl_opendir
 957                       Perl_pathify_dirspec
 958                       Perl_pathify_dirspec_ts
 959                       Perl_pathify_dirspec_utf8
 960                       Perl_pathify_dirspec_utf8_ts
 961                       Perl_readdir
 962                       Perl_readdir_r
 963                       Perl_rename
 964                       Perl_rmscopy
 965                       Perl_rmsexpand
 966                       Perl_rmsexpand_ts
 967                       Perl_rmsexpand_utf8
 968                       Perl_rmsexpand_utf8_ts
 969                       Perl_seekdir
 970                       Perl_sig_to_vmscondition
 971                       Perl_telldir
 972                       Perl_tounixpath
 973                       Perl_tounixpath_ts
 974                       Perl_tounixpath_utf8
 975                       Perl_tounixpath_utf8_ts
 976                       Perl_tounixspec
 977                       Perl_tounixspec_ts
 978                       Perl_tounixspec_utf8
 979                       Perl_tounixspec_utf8_ts
 980                       Perl_tovmspath
 981                       Perl_tovmspath_ts
 982                       Perl_tovmspath_utf8
 983                       Perl_tovmspath_utf8_ts
 984                       Perl_tovmsspec
 985                       Perl_tovmsspec_ts
 986                       Perl_tovmsspec_utf8
 987                       Perl_tovmsspec_utf8_ts
 988                       Perl_trim_unixpath
 989                       Perl_vms_case_tolerant
 990                       Perl_vms_do_aexec
 991                       Perl_vms_do_exec
 992                       Perl_vms_image_init
 993                       Perl_vms_realpath
 994                       Perl_vmssetenv
 995                       Perl_vmssetuserlnm
 996                       Perl_vmstrnenv
 997                       PerlIO_openn
 998                  ));
 999 }
1000 elsif ($ARGS{PLATFORM} eq 'os2') {
1001     try_symbols(qw(
1002                       ctermid
1003                       get_sysinfo
1004                       Perl_OS2_init
1005                       Perl_OS2_init3
1006                       Perl_OS2_term
1007                       OS2_Perl_data
1008                       dlopen
1009                       dlsym
1010                       dlerror
1011                       dlclose
1012                       dup2
1013                       dup
1014                       my_tmpfile
1015                       my_tmpnam
1016                       my_flock
1017                       my_rmdir
1018                       my_mkdir
1019                       my_getpwuid
1020                       my_getpwnam
1021                       my_getpwent
1022                       my_setpwent
1023                       my_endpwent
1024                       fork_with_resources
1025                       croak_with_os2error
1026                       setgrent
1027                       endgrent
1028                       getgrent
1029                       malloc_mutex
1030                       threads_mutex
1031                       nthreads
1032                       nthreads_cond
1033                       os2_cond_wait
1034                       os2_stat
1035                       os2_execname
1036                       async_mssleep
1037                       msCounter
1038                       InfoTable
1039                       pthread_join
1040                       pthread_create
1041                       pthread_detach
1042                       XS_Cwd_change_drive
1043                       XS_Cwd_current_drive
1044                       XS_Cwd_extLibpath
1045                       XS_Cwd_extLibpath_set
1046                       XS_Cwd_sys_abspath
1047                       XS_Cwd_sys_chdir
1048                       XS_Cwd_sys_cwd
1049                       XS_Cwd_sys_is_absolute
1050                       XS_Cwd_sys_is_relative
1051                       XS_Cwd_sys_is_rooted
1052                       XS_DynaLoader_mod2fname
1053                       XS_File__Copy_syscopy
1054                       Perl_Register_MQ
1055                       Perl_Deregister_MQ
1056                       Perl_Serve_Messages
1057                       Perl_Process_Messages
1058                       init_PMWIN_entries
1059                       PMWIN_entries
1060                       Perl_hab_GET
1061                       loadByOrdinal
1062                       pExtFCN
1063                       os2error
1064                       ResetWinError
1065                       CroakWinError
1066                       PL_do_undump
1067                  ));
1068 }
1069 elsif ($ARGS{PLATFORM} eq 'netware') {
1070     try_symbols(qw(
1071                         Perl_init_os_extras
1072                         Perl_nw5_init
1073                         RunPerl
1074                         AllocStdPerl
1075                         FreeStdPerl
1076                         do_spawn2
1077                         do_aspawn
1078                         nw_uname
1079                         nw_stdin
1080                         nw_stdout
1081                         nw_stderr
1082                         nw_feof
1083                         nw_ferror
1084                         nw_fopen
1085                         nw_fclose
1086                         nw_clearerr
1087                         nw_getc
1088                         nw_fgets
1089                         nw_fputc
1090                         nw_fputs
1091                         nw_fflush
1092                         nw_ungetc
1093                         nw_fileno
1094                         nw_fdopen
1095                         nw_freopen
1096                         nw_fread
1097                         nw_fwrite
1098                         nw_setbuf
1099                         nw_setvbuf
1100                         nw_vfprintf
1101                         nw_ftell
1102                         nw_fseek
1103                         nw_rewind
1104                         nw_tmpfile
1105                         nw_fgetpos
1106                         nw_fsetpos
1107                         nw_dup
1108                         nw_access
1109                         nw_chmod
1110                         nw_chsize
1111                         nw_close
1112                         nw_dup2
1113                         nw_flock
1114                         nw_isatty
1115                         nw_link
1116                         nw_lseek
1117                         nw_stat
1118                         nw_mktemp
1119                         nw_open
1120                         nw_read
1121                         nw_rename
1122                         nw_setmode
1123                         nw_unlink
1124                         nw_utime
1125                         nw_write
1126                         nw_chdir
1127                         nw_rmdir
1128                         nw_closedir
1129                         nw_opendir
1130                         nw_readdir
1131                         nw_rewinddir
1132                         nw_seekdir
1133                         nw_telldir
1134                         nw_htonl
1135                         nw_htons
1136                         nw_ntohl
1137                         nw_ntohs
1138                         nw_accept
1139                         nw_bind
1140                         nw_connect
1141                         nw_endhostent
1142                         nw_endnetent
1143                         nw_endprotoent
1144                         nw_endservent
1145                         nw_gethostbyaddr
1146                         nw_gethostbyname
1147                         nw_gethostent
1148                         nw_gethostname
1149                         nw_getnetbyaddr
1150                         nw_getnetbyname
1151                         nw_getnetent
1152                         nw_getpeername
1153                         nw_getprotobyname
1154                         nw_getprotobynumber
1155                         nw_getprotoent
1156                         nw_getservbyname
1157                         nw_getservbyport
1158                         nw_getservent
1159                         nw_getsockname
1160                         nw_getsockopt
1161                         nw_inet_addr
1162                         nw_listen
1163                         nw_socket
1164                         nw_recv
1165                         nw_recvfrom
1166                         nw_select
1167                         nw_send
1168                         nw_sendto
1169                         nw_sethostent
1170                         nw_setnetent
1171                         nw_setprotoent
1172                         nw_setservent
1173                         nw_setsockopt
1174                         nw_inet_ntoa
1175                         nw_shutdown
1176                         nw_crypt
1177                         nw_execvp
1178                         nw_kill
1179                         nw_Popen
1180                         nw_Pclose
1181                         nw_Pipe
1182                         nw_times
1183                         nw_waitpid
1184                         nw_getpid
1185                         nw_spawnvp
1186                         nw_os_id
1187                         nw_open_osfhandle
1188                         nw_get_osfhandle
1189                         nw_abort
1190                         nw_sleep
1191                         nw_wait
1192                         nw_dynaload
1193                         nw_strerror
1194                         fnFpSetMode
1195                         fnInsertHashListAddrs
1196                         fnGetHashListAddrs
1197                         Perl_deb
1198                         Perl_sv_setsv
1199                         Perl_sv_catsv
1200                         Perl_sv_catpvn
1201                         Perl_sv_2pv
1202                         nw_freeenviron
1203                         Remove_Thread_Ctx
1204                  ));
1205 }
1206
1207 # When added this code was only run for Win32 (and WinCE at the time)
1208 # Currently only Win32 links static extensions into the shared library.
1209 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1210 # list of dynamic extensions, and the rules to build them)
1211 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1212 # static extensions with -fPIC, but links them to perl, not libperl.so
1213 # The VMS build scripts don't yet implement static extensions at all.
1214
1215 if ($ARGS{PLATFORM} eq 'win32') {
1216     # records of type boot_module for statically linked modules (except Dynaloader)
1217     my $static_ext = $Config{static_ext} // "";
1218     $static_ext =~ s/\//__/g;
1219     $static_ext =~ s/\bDynaLoader\b//;
1220     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1221     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1222 }
1223
1224 if ($ARGS{PLATFORM} eq 'os2') {
1225     my (%mapped, @missing);
1226     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1227     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1228     close MAP or die 'Cannot close miniperl.map';
1229
1230     @missing = grep { !exists $mapped{$_} }
1231                     keys %export;
1232     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1233     delete $export{$_} foreach @missing;
1234 }
1235
1236 ###############################################################################
1237
1238 # Now all symbols should be defined because next we are going to output them.
1239
1240 # Start with platform specific headers:
1241
1242 if ($ARGS{PLATFORM} eq 'win32') {
1243     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1244         : "perl$Config{api_revision}$Config{api_version}";
1245     print "LIBRARY $dll\n";
1246     # The DESCRIPTION module definition file statement is not supported
1247     # by VC7 onwards.
1248     if ($ARGS{CCTYPE} eq 'GCC') {
1249         print "DESCRIPTION 'Perl interpreter'\n";
1250     }
1251     print "EXPORTS\n";
1252 }
1253 elsif ($ARGS{PLATFORM} eq 'os2') {
1254     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1255     $v .= '-thread' if $Config{archname} =~ /-thread/;
1256     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1257     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1258     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1259     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1260     print <<"---EOP---";
1261 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1262 $d
1263 STACKSIZE 32768
1264 CODE LOADONCALL
1265 DATA LOADONCALL NONSHARED MULTIPLE
1266 EXPORTS
1267 ---EOP---
1268 }
1269 elsif ($ARGS{PLATFORM} eq 'aix') {
1270     my $OSVER = `uname -v`;
1271     chop $OSVER;
1272     my $OSREL = `uname -r`;
1273     chop $OSREL;
1274     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1275         print "#! ..\n";
1276     } else {
1277         print "#!\n";
1278     }
1279 }
1280 elsif ($ARGS{PLATFORM} eq 'netware') {
1281         if ($ARGS{FILETYPE} eq 'def') {
1282         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1283         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1284         print "EXPORTS\n";
1285         }
1286 }
1287
1288 # Then the symbols
1289
1290 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1291 foreach my $symbol (@symbols) {
1292     if (PLATFORM eq 'win32') {
1293         # Remembering the origin file of each symbol is an alternative to PL_ matching
1294         if (substr($symbol, 0, 3) eq 'PL_') {
1295             print "\t$symbol DATA\n";
1296         }
1297         else {
1298             print "\t$symbol\n";
1299         }
1300     }
1301     elsif (PLATFORM eq 'os2') {
1302         printf qq(    %-31s \@%s\n),
1303           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1304         printf qq(    %-31s \@%s\n),
1305           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1306           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1307           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1308     }
1309     elsif (PLATFORM eq 'netware') {
1310         print "\t$symbol,\n";
1311     } else {
1312         print "$symbol\n";
1313     }
1314 }
1315
1316 # Then platform specific footers.
1317
1318 if ($ARGS{PLATFORM} eq 'os2') {
1319     print <<EOP;
1320     dll_perlmain=main
1321     fill_extLibpath
1322     dir_subst
1323     Perl_OS2_handler_install
1324
1325 ; LAST_ORDINAL=$sym_ord
1326 EOP
1327 }
1328
1329 1;