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{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
 105                                            |KILL_BY_SIGPRC
 106                                            |(?:PERL|USE|HAS)_\w+)\b/x;
 107 }
 108 close(CFG);
 109
 110 # perl.h logic duplication begins
 111
 112 if ($define{USE_ITHREADS}) {
 113     if (!$define{MULTIPLICITY}) {
 114         $define{MULTIPLICITY} = 1;
 115     }
 116 }
 117
 118 $define{MULTIPLICITY} ||=
 119     $define{USE_ITHREADS} ||
 120     $define{PERL_IMPLICIT_CONTEXT} ;
 121
 122 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32') {
 123     $define{USE_REENTRANT_API} = 1;
 124 }
 125
 126 if (! $define{NO_LOCALE}) {
 127     if ( ! $define{NO_POSIX_2008_LOCALE}
 128         && $define{HAS_NEWLOCALE}
 129         && $define{HAS_USELOCALE}
 130         && $define{HAS_DUPLOCALE}
 131         && $define{HAS_FREELOCALE})
 132     {
 133         $define{HAS_POSIX_2008_LOCALE} = 1;
 134         $define{USE_LOCALE} = 1;
 135     }
 136     elsif ($define{HAS_SETLOCALE}) {
 137         $define{USE_LOCALE} = 1;
 138     }
 139 }
 140
 141 # https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B#Internal_version_numbering
 142 my $cctype = $ARGS{CCTYPE} =~ s/MSVC//r;
 143 if (! $define{HAS_SETLOCALE} && $define{HAS_POSIX_2008_LOCALE}) {
 144     $define{USE_POSIX_2008_LOCALE} = 1;
 145     $define{USE_THREAD_SAFE_LOCALE} = 1;
 146 }
 147 elsif (   ($define{USE_ITHREADS} || $define{USE_THREAD_SAFE_LOCALE})
 148        && (    $define{HAS_POSIX_2008_LOCALE}
 149            || ($ARGS{PLATFORM} eq 'win32' && (   $cctype !~ /\D/
 150                                               && $cctype >= 80)))
 151        && ! $define{NO_THREAD_SAFE_LOCALE})
 152 {
 153     $define{USE_THREAD_SAFE_LOCALE} = 1 unless $define{USE_THREAD_SAFE_LOCALE};
 154     $define{USE_POSIX_2008_LOCALE} = 1 if $define{HAS_POSIX_2008_LOCALE};
 155 }
 156
 157 if (   $ARGS{PLATFORM} eq 'win32'
 158     && $define{USE_THREAD_SAFE_LOCALE}
 159     && $cctype < 140)
 160 {
 161     $define{TS_W32_BROKEN_LOCALECONV} = 1;
 162 }
 163
 164 # perl.h logic duplication ends
 165
 166 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
 167      unless $ARGS{PLATFORM} eq 'test';
 168
 169 my $sym_ord = 0;
 170 my %ordinal;
 171
 172 if ($ARGS{PLATFORM} eq 'os2') {
 173     if (open my $fh, '<', 'perl5.def') {
 174       while (<$fh>) {
 175         last if /^\s*EXPORTS\b/;
 176       }
 177       while (<$fh>) {
 178         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 179         # This allows skipping ordinals which were used in older versions
 180         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 181       }
 182       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 183     }
 184 }
 185
 186 my %skip;
 187 # All platforms export boot_DynaLoader unconditionally.
 188 my %export = ( boot_DynaLoader => 1 );
 189
 190 # d_thread_local not perl_thread_local - see hints/darwin.sh
 191 ++$export{PL_current_context}
 192     if defined $Config{d_thread_local} && $define{USE_ITHREADS};
 193
 194 sub try_symbols {
 195     foreach my $symbol (@_) {
 196         ++$export{$symbol} unless exists $skip{$symbol};
 197     }
 198 }
 199
 200 sub readvar {
 201     # $hash is the hash that we're adding to. For one of our callers, it will
 202     # actually be the skip hash but that doesn't affect the intent of what
 203     # we're doing, as in that case we skip adding something to the skip hash
 204     # for the second time.
 205
 206     my $file = $ARGS{TARG_DIR} . shift;
 207     my $hash = shift;
 208     my $proc = shift;
 209     open my $vars, '<', $file or die "Cannot open $file: $!\n";
 210
 211     while (<$vars>) {
 212         # All symbols have a Perl_ prefix because that's what embed.h sticks
 213         # in front of them.  The A?I?S?C? is strictly speaking wrong.
 214         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
 215
 216         my $var = "PL_$3";
 217         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
 218         ++$hash->{$symbol} unless exists $skip{$var};
 219     }
 220 }
 221
 222 if ($ARGS{PLATFORM} ne 'os2') {
 223     ++$skip{$_} foreach qw(
 224                      PL_opsave
 225                      Perl_dump_fds
 226                      Perl_my_bcopy
 227                      Perl_my_bzero
 228                      Perl_my_chsize
 229                      Perl_my_htonl
 230                      Perl_my_memcmp
 231                      Perl_my_memset
 232                      Perl_my_ntohl
 233                      Perl_my_swap
 234                          );
 235     if ($ARGS{PLATFORM} eq 'vms') {
 236         ++$skip{PL_statusvalue_posix};
 237         # This is a wrapper if we have symlink, not a replacement
 238         # if we don't.
 239         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
 240     } else {
 241         ++$skip{PL_statusvalue_vms};
 242         ++$skip{PL_perllib_sep};
 243         if ($ARGS{PLATFORM} ne 'aix') {
 244             ++$skip{$_} foreach qw(
 245                                 PL_DBcv
 246                                 PL_generation
 247                                 PL_lastgotoprobe
 248                                 PL_modcount
 249                                 main
 250                                  );
 251         }
 252     }
 253 }
 254
 255 if ($ARGS{PLATFORM} ne 'vms') {
 256     # VMS does its own thing for these symbols.
 257     ++$skip{$_} foreach qw(
 258                         PL_sig_handlers_initted
 259                         PL_sig_ignoring
 260                         PL_sig_defaulting
 261                          );
 262     if ($ARGS{PLATFORM} ne 'win32') {
 263         ++$skip{$_} foreach qw(
 264                             Perl_do_spawn
 265                             Perl_do_spawn_nowait
 266                             Perl_do_aspawn
 267                              );
 268     }
 269 }
 270
 271 if ($ARGS{PLATFORM} ne 'win32') {
 272     ++$skip{$_} foreach qw(
 273                     Perl_my_setlocale
 274                          );
 275 }
 276
 277 unless ($define{UNLINK_ALL_VERSIONS}) {
 278     ++$skip{Perl_unlnk};
 279 }
 280
 281 unless ($define{'DEBUGGING'}) {
 282     ++$skip{$_} foreach qw(
 283                     Perl_debop
 284                     Perl_debprofdump
 285                     Perl_debstack
 286                     Perl_debstackptrs
 287                     Perl_pad_sv
 288                     Perl_pad_setsv
 289                     Perl__setlocale_debug_string
 290                     Perl_set_padlist
 291                     Perl_hv_assert
 292                     PL_watchaddr
 293                     PL_watchok
 294                          );
 295 }
 296
 297 if ($define{'PERL_IMPLICIT_SYS'}) {
 298     ++$skip{$_} foreach qw(
 299                     Perl_my_popen
 300                     Perl_my_pclose
 301                          );
 302     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
 303     ++$export{perl_clone_host} if $define{USE_ITHREADS};
 304 }
 305 else {
 306     ++$skip{$_} foreach qw(
 307                     PL_Mem
 308                     PL_MemShared
 309                     PL_MemParse
 310                     PL_Env
 311                     PL_StdIO
 312                     PL_LIO
 313                     PL_Dir
 314                     PL_Sock
 315                     PL_Proc
 316                     perl_alloc_using
 317                     perl_clone_using
 318                          );
 319 }
 320
 321 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
 322     ++$skip{Perl_sv_setsv_cow};
 323 }
 324
 325 unless ($define{PERL_SAWAMPERSAND}) {
 326     ++$skip{PL_sawampersand};
 327 }
 328
 329 unless ($define{'USE_REENTRANT_API'}) {
 330     ++$skip{PL_reentrant_buffer};
 331 }
 332
 333 if ($define{'MYMALLOC'}) {
 334     try_symbols(qw(
 335                     Perl_dump_mstats
 336                     Perl_get_mstats
 337                     Perl_strdup
 338                     Perl_putenv
 339                     MallocCfg_ptr
 340                     MallocCfgP_ptr
 341                     ));
 342     unless ($define{USE_ITHREADS}) {
 343         ++$skip{PL_malloc_mutex}
 344     }
 345 }
 346 else {
 347     ++$skip{$_} foreach qw(
 348                     PL_malloc_mutex
 349                     Perl_dump_mstats
 350                     Perl_get_mstats
 351                     MallocCfg_ptr
 352                     MallocCfgP_ptr
 353                          );
 354 }
 355
 356 if ($define{'PERL_USE_SAFE_PUTENV'}) {
 357     ++$skip{PL_use_safe_putenv};
 358 }
 359
 360 unless ($define{'USE_ITHREADS'}) {
 361     ++$skip{PL_thr_key};
 362     ++$skip{PL_user_prop_mutex};
 363     ++$skip{PL_user_def_props_aTHX};
 364 }
 365
 366 unless ($define{'USE_ITHREADS'}) {
 367     ++$skip{$_} foreach qw(
 368                     PL_keyword_plugin_mutex
 369                     PL_check_mutex
 370                     PL_op_mutex
 371                     PL_regex_pad
 372                     PL_regex_padav
 373                     PL_dollarzero_mutex
 374                     PL_env_mutex
 375                     PL_hints_mutex
 376                     PL_locale_mutex
 377                     PL_lc_numeric_mutex
 378                     PL_lc_numeric_mutex_depth
 379                     PL_my_ctx_mutex
 380                     PL_perlio_mutex
 381                     PL_stashpad
 382                     PL_stashpadix
 383                     PL_stashpadmax
 384                     Perl_alloccopstash
 385                     Perl_allocfilegv
 386                     Perl_clone_params_del
 387                     Perl_clone_params_new
 388                     Perl_parser_dup
 389                     Perl_dirp_dup
 390                     Perl_cx_dup
 391                     Perl_si_dup
 392                     Perl_any_dup
 393                     Perl_ss_dup
 394                     Perl_fp_dup
 395                     Perl_gp_dup
 396                     Perl_he_dup
 397                     Perl_mg_dup
 398                     Perl_re_dup_guts
 399                     Perl_sv_dup
 400                     Perl_sv_dup_inc
 401                     Perl_rvpv_dup
 402                     Perl_hek_dup
 403                     Perl_sys_intern_dup
 404                     perl_clone
 405                     perl_clone_using
 406                     Perl_stashpv_hvname_match
 407                     Perl_regdupe_internal
 408                     Perl_newPADOP
 409                          );
 410 }
 411
 412 if (      $define{NO_LOCALE}
 413     || (! $define{USE_ITHREADS} && ! $define{USE_THREAD_SAFE_LOCALE}))
 414 {
 415     ++$skip{$_} foreach qw(
 416         PL_C_locale_obj
 417         PL_curlocales
 418     );
 419 }
 420
 421 unless ( $define{'HAS_NEWLOCALE'}
 422     &&   $define{'HAS_FREELOCALE'}
 423     &&   $define{'HAS_USELOCALE'}
 424     && ! $define{'NO_POSIX_2008_LOCALE'})
 425 {
 426     ++$skip{$_} foreach qw(
 427         PL_C_locale_obj
 428         PL_underlying_numeric_obj
 429     );
 430 }
 431
 432 unless ($define{'MULTIPLICITY'}) {
 433     ++$skip{$_} foreach qw(
 434                     PL_my_cxt_index
 435                     PL_my_cxt_list
 436                     PL_my_cxt_size
 437                     PL_my_cxt_keys
 438                     PL_my_cxt_keys_size
 439                     Perl_croak_nocontext
 440                     Perl_die_nocontext
 441                     Perl_deb_nocontext
 442                     Perl_form_nocontext
 443                     Perl_load_module_nocontext
 444                     Perl_mess_nocontext
 445                     Perl_warn_nocontext
 446                     Perl_warner_nocontext
 447                     Perl_newSVpvf_nocontext
 448                     Perl_sv_catpvf_nocontext
 449                     Perl_sv_setpvf_nocontext
 450                     Perl_sv_catpvf_mg_nocontext
 451                     Perl_sv_setpvf_mg_nocontext
 452                     Perl_my_cxt_init
 453                     Perl_my_cxt_index
 454                          );
 455 }
 456
 457 if ($define{USE_THREAD_SAFE_LOCALE}) {
 458     ++$skip{PL_lc_numeric_mutex};
 459     ++$skip{PL_lc_numeric_mutex_depth};
 460 }
 461
 462 unless ($define{'USE_DTRACE'}) {
 463     ++$skip{$_} foreach qw(
 464                     Perl_dtrace_probe_call
 465                     Perl_dtrace_probe_load
 466                     Perl_dtrace_probe_op
 467                     Perl_dtrace_probe_phase
 468                 );
 469 }
 470
 471 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 472     ++$skip{PL_sv_serial};
 473 }
 474
 475 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 476     ++$skip{PL_dumper_fd};
 477 }
 478
 479 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 480     ++$skip{Perl_gv_SVadd};
 481 }
 482
 483 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 484     ++$skip{PL_pidstatus};
 485 }
 486
 487 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 488     ++$skip{PL_memory_debug_header};
 489 }
 490
 491 unless ($define{'PERL_MEM_LOG'}) {
 492     ++$skip{PL_mem_log};
 493 }
 494
 495 unless ($define{'MULTIPLICITY'}) {
 496     ++$skip{$_} foreach qw(
 497                     PL_interp_size
 498                     PL_interp_size_5_18_0
 499                     PL_sv_yes
 500                     PL_sv_undef
 501                     PL_sv_no
 502                     PL_sv_zero
 503                          );
 504 }
 505
 506 unless ($define{HAS_MMAP}) {
 507     ++$skip{PL_mmap_page_size};
 508 }
 509
 510 if ($define{HAS_SIGACTION}) {
 511     ++$skip{PL_sig_trapped};
 512
 513     if ($ARGS{PLATFORM} eq 'vms') {
 514         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
 515         ++$skip{PL_sig_ignoring};
 516         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
 517     }
 518 }
 519
 520 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
 521     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
 522     ++$skip{Perl_csighandler_init};
 523     ++$skip{Perl_my_kill};
 524     ++$skip{Perl_sig_to_vmscondition};
 525     ++$skip{PL_sig_defaulting};
 526     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
 527 }
 528
 529 if ($define{'HAS_STRNLEN'})
 530 {
 531     ++$skip{Perl_my_strnlen};
 532 }
 533
 534 unless ($define{USE_LOCALE_COLLATE}) {
 535     ++$skip{$_} foreach qw(
 536                     PL_collation_ix
 537                     PL_collation_name
 538                     PL_collation_standard
 539                     PL_collxfrm_base
 540                     PL_collxfrm_mult
 541                     Perl_sv_collxfrm
 542                     Perl_sv_collxfrm_flags
 543                     PL_strxfrm_NUL_replacement
 544                     PL_strxfrm_is_behaved
 545                     PL_strxfrm_max_cp
 546                          );
 547 }
 548
 549 unless ($define{USE_LOCALE_NUMERIC}) {
 550     ++$skip{$_} foreach qw(
 551                     PL_numeric_local
 552                     PL_numeric_name
 553                     PL_numeric_radix_sv
 554                     PL_numeric_standard
 555                     PL_numeric_underlying
 556                     PL_numeric_underlying_is_standard
 557                     PL_underlying_numeric_obj
 558                          );
 559 }
 560
 561 unless ($define{'USE_C_BACKTRACE'}) {
 562     ++$skip{Perl_get_c_backtrace_dump};
 563     ++$skip{Perl_dump_c_backtrace};
 564 }
 565
 566 unless ($define{HAVE_INTERP_INTERN}) {
 567     ++$skip{$_} foreach qw(
 568                     Perl_sys_intern_clear
 569                     Perl_sys_intern_dup
 570                     Perl_sys_intern_init
 571                     PL_sys_intern
 572                          );
 573 }
 574
 575 if ($define{HAS_SIGNBIT}) {
 576     ++$skip{Perl_signbit};
 577 }
 578
 579 ++$skip{PL_op_exec_cnt}
 580     unless $define{PERL_TRACE_OPS};
 581
 582 ++$skip{PL_hash_chars}
 583     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
 584
 585 # functions from *.sym files
 586
 587 my @syms = qw(globvar.sym);
 588
 589 # Symbols that are the public face of the PerlIO layers implementation
 590 # These are in _addition to_ the public face of the abstraction
 591 # and need to be exported to allow XS modules to implement layers
 592 my @layer_syms = qw(
 593                     PerlIOBase_binmode
 594                     PerlIOBase_clearerr
 595                     PerlIOBase_close
 596                     PerlIOBase_dup
 597                     PerlIOBase_eof
 598                     PerlIOBase_error
 599                     PerlIOBase_fileno
 600                     PerlIOBase_open
 601                     PerlIOBase_noop_fail
 602                     PerlIOBase_noop_ok
 603                     PerlIOBase_popped
 604                     PerlIOBase_pushed
 605                     PerlIOBase_read
 606                     PerlIOBase_setlinebuf
 607                     PerlIOBase_unread
 608                     PerlIOBuf_bufsiz
 609                     PerlIOBuf_close
 610                     PerlIOBuf_dup
 611                     PerlIOBuf_fill
 612                     PerlIOBuf_flush
 613                     PerlIOBuf_get_base
 614                     PerlIOBuf_get_cnt
 615                     PerlIOBuf_get_ptr
 616                     PerlIOBuf_open
 617                     PerlIOBuf_popped
 618                     PerlIOBuf_pushed
 619                     PerlIOBuf_read
 620                     PerlIOBuf_seek
 621                     PerlIOBuf_set_ptrcnt
 622                     PerlIOBuf_tell
 623                     PerlIOBuf_unread
 624                     PerlIOBuf_write
 625                     PerlIO_allocate
 626                     PerlIO_apply_layera
 627                     PerlIO_apply_layers
 628                     PerlIO_arg_fetch
 629                     PerlIO_debug
 630                     PerlIO_define_layer
 631                     PerlIO_find_layer
 632                     PerlIO_isutf8
 633                     PerlIO_layer_fetch
 634                     PerlIO_list_alloc
 635                     PerlIO_list_free
 636                     PerlIO_modestr
 637                     PerlIO_parse_layers
 638                     PerlIO_pending
 639                     PerlIO_perlio
 640                     PerlIO_pop
 641                     PerlIO_push
 642                     PerlIO_sv_dup
 643                     Perl_PerlIO_clearerr
 644                     Perl_PerlIO_close
 645                     Perl_PerlIO_context_layers
 646                     Perl_PerlIO_eof
 647                     Perl_PerlIO_error
 648                     Perl_PerlIO_fileno
 649                     Perl_PerlIO_fill
 650                     Perl_PerlIO_flush
 651                     Perl_PerlIO_get_base
 652                     Perl_PerlIO_get_bufsiz
 653                     Perl_PerlIO_get_cnt
 654                     Perl_PerlIO_get_ptr
 655                     Perl_PerlIO_read
 656                     Perl_PerlIO_restore_errno
 657                     Perl_PerlIO_save_errno
 658                     Perl_PerlIO_seek
 659                     Perl_PerlIO_set_cnt
 660                     Perl_PerlIO_set_ptrcnt
 661                     Perl_PerlIO_setlinebuf
 662                     Perl_PerlIO_stderr
 663                     Perl_PerlIO_stdin
 664                     Perl_PerlIO_stdout
 665                     Perl_PerlIO_tell
 666                     Perl_PerlIO_unread
 667                     Perl_PerlIO_write
 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                     win32_symlink
 914                     win32_lstat
 915                     win32_readlink
 916                  ));
 917 }
 918 elsif ($ARGS{PLATFORM} eq 'vms') {
 919     try_symbols(qw(
 920                       Perl_cando
 921                       Perl_cando_by_name
 922                       Perl_closedir
 923                       Perl_csighandler_init
 924                       Perl_do_rmdir
 925                       Perl_fileify_dirspec
 926                       Perl_fileify_dirspec_ts
 927                       Perl_fileify_dirspec_utf8
 928                       Perl_fileify_dirspec_utf8_ts
 929                       Perl_flex_fstat
 930                       Perl_flex_lstat
 931                       Perl_flex_stat
 932                       Perl_kill_file
 933                       Perl_my_chdir
 934                       Perl_my_chmod
 935                       Perl_my_crypt
 936                       Perl_my_endpwent
 937                       Perl_my_fclose
 938                       Perl_my_fdopen
 939                       Perl_my_fgetname
 940                       Perl_my_flush
 941                       Perl_my_fwrite
 942                       Perl_my_gconvert
 943                       Perl_my_getenv
 944                       Perl_my_getenv_len
 945                       Perl_my_getpwnam
 946                       Perl_my_getpwuid
 947                       Perl_my_gmtime
 948                       Perl_my_kill
 949                       Perl_my_killpg
 950                       Perl_my_localtime
 951                       Perl_my_mkdir
 952                       Perl_my_sigaction
 953                       Perl_my_symlink
 954                       Perl_my_time
 955                       Perl_my_tmpfile
 956                       Perl_my_trnlnm
 957                       Perl_my_utime
 958                       Perl_my_waitpid
 959                       Perl_opendir
 960                       Perl_pathify_dirspec
 961                       Perl_pathify_dirspec_ts
 962                       Perl_pathify_dirspec_utf8
 963                       Perl_pathify_dirspec_utf8_ts
 964                       Perl_readdir
 965                       Perl_readdir_r
 966                       Perl_rename
 967                       Perl_rmscopy
 968                       Perl_rmsexpand
 969                       Perl_rmsexpand_ts
 970                       Perl_rmsexpand_utf8
 971                       Perl_rmsexpand_utf8_ts
 972                       Perl_seekdir
 973                       Perl_sig_to_vmscondition
 974                       Perl_telldir
 975                       Perl_tounixpath
 976                       Perl_tounixpath_ts
 977                       Perl_tounixpath_utf8
 978                       Perl_tounixpath_utf8_ts
 979                       Perl_tounixspec
 980                       Perl_tounixspec_ts
 981                       Perl_tounixspec_utf8
 982                       Perl_tounixspec_utf8_ts
 983                       Perl_tovmspath
 984                       Perl_tovmspath_ts
 985                       Perl_tovmspath_utf8
 986                       Perl_tovmspath_utf8_ts
 987                       Perl_tovmsspec
 988                       Perl_tovmsspec_ts
 989                       Perl_tovmsspec_utf8
 990                       Perl_tovmsspec_utf8_ts
 991                       Perl_trim_unixpath
 992                       Perl_vms_case_tolerant
 993                       Perl_vms_do_aexec
 994                       Perl_vms_do_exec
 995                       Perl_vms_image_init
 996                       Perl_vms_realpath
 997                       Perl_vmssetenv
 998                       Perl_vmssetuserlnm
 999                       Perl_vmstrnenv
1000                       PerlIO_openn
1001                  ));
1002 }
1003 elsif ($ARGS{PLATFORM} eq 'os2') {
1004     try_symbols(qw(
1005                       ctermid
1006                       get_sysinfo
1007                       Perl_OS2_init
1008                       Perl_OS2_init3
1009                       Perl_OS2_term
1010                       OS2_Perl_data
1011                       dlopen
1012                       dlsym
1013                       dlerror
1014                       dlclose
1015                       dup2
1016                       dup
1017                       my_tmpfile
1018                       my_tmpnam
1019                       my_flock
1020                       my_rmdir
1021                       my_mkdir
1022                       my_getpwuid
1023                       my_getpwnam
1024                       my_getpwent
1025                       my_setpwent
1026                       my_endpwent
1027                       fork_with_resources
1028                       croak_with_os2error
1029                       setgrent
1030                       endgrent
1031                       getgrent
1032                       malloc_mutex
1033                       threads_mutex
1034                       nthreads
1035                       nthreads_cond
1036                       os2_cond_wait
1037                       os2_stat
1038                       os2_execname
1039                       async_mssleep
1040                       msCounter
1041                       InfoTable
1042                       pthread_join
1043                       pthread_create
1044                       pthread_detach
1045                       XS_Cwd_change_drive
1046                       XS_Cwd_current_drive
1047                       XS_Cwd_extLibpath
1048                       XS_Cwd_extLibpath_set
1049                       XS_Cwd_sys_abspath
1050                       XS_Cwd_sys_chdir
1051                       XS_Cwd_sys_cwd
1052                       XS_Cwd_sys_is_absolute
1053                       XS_Cwd_sys_is_relative
1054                       XS_Cwd_sys_is_rooted
1055                       XS_DynaLoader_mod2fname
1056                       XS_File__Copy_syscopy
1057                       Perl_Register_MQ
1058                       Perl_Deregister_MQ
1059                       Perl_Serve_Messages
1060                       Perl_Process_Messages
1061                       init_PMWIN_entries
1062                       PMWIN_entries
1063                       Perl_hab_GET
1064                       loadByOrdinal
1065                       pExtFCN
1066                       os2error
1067                       ResetWinError
1068                       CroakWinError
1069                       PL_do_undump
1070                  ));
1071 }
1072
1073 # When added this code was only run for Win32 (and WinCE at the time)
1074 # Currently only Win32 links static extensions into the shared library.
1075 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1076 # static extensions with -fPIC, but links them to perl, not libperl.so
1077 # The VMS build scripts don't yet implement static extensions at all.
1078
1079 if ($ARGS{PLATFORM} eq 'win32') {
1080     # records of type boot_module for statically linked modules (except Dynaloader)
1081     my $static_ext = $Config{static_ext} // "";
1082     $static_ext =~ s/\//__/g;
1083     $static_ext =~ s/\bDynaLoader\b//;
1084     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1085     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1086 }
1087
1088 if ($ARGS{PLATFORM} eq 'os2') {
1089     my (%mapped, @missing);
1090     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1091     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1092     close MAP or die 'Cannot close miniperl.map';
1093
1094     @missing = grep { !exists $mapped{$_} }
1095                     keys %export;
1096     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1097     delete $export{$_} foreach @missing;
1098 }
1099
1100 ###############################################################################
1101
1102 # Now all symbols should be defined because next we are going to output them.
1103
1104 # Start with platform specific headers:
1105
1106 if ($ARGS{PLATFORM} eq 'win32') {
1107     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1108         : "perl$Config{api_revision}$Config{api_version}";
1109     print "LIBRARY $dll\n";
1110     # The DESCRIPTION module definition file statement is not supported
1111     # by VC7 onwards.
1112     if ($ARGS{CCTYPE} eq 'GCC') {
1113         print "DESCRIPTION 'Perl interpreter'\n";
1114     }
1115     print "EXPORTS\n";
1116 }
1117 elsif ($ARGS{PLATFORM} eq 'os2') {
1118     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1119     $v .= '-thread' if $Config{archname} =~ /-thread/;
1120     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1121     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1122     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1123     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1124     print <<"---EOP---";
1125 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1126 $d
1127 STACKSIZE 32768
1128 CODE LOADONCALL
1129 DATA LOADONCALL NONSHARED MULTIPLE
1130 EXPORTS
1131 ---EOP---
1132 }
1133 elsif ($ARGS{PLATFORM} eq 'aix') {
1134     my $OSVER = `uname -v`;
1135     chop $OSVER;
1136     my $OSREL = `uname -r`;
1137     chop $OSREL;
1138     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1139         print "#! ..\n";
1140     } else {
1141         print "#!\n";
1142     }
1143 }
1144
1145 # Then the symbols
1146
1147 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1148 foreach my $symbol (@symbols) {
1149     if (PLATFORM eq 'win32') {
1150         # Remembering the origin file of each symbol is an alternative to PL_ matching
1151         if (substr($symbol, 0, 3) eq 'PL_') {
1152             print "\t$symbol DATA\n";
1153         }
1154         else {
1155             print "\t$symbol\n";
1156         }
1157     }
1158     elsif (PLATFORM eq 'os2') {
1159         printf qq(    %-31s \@%s\n),
1160           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1161         printf qq(    %-31s \@%s\n),
1162           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1163           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1164           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1165     } else {
1166         print "$symbol\n";
1167     }
1168 }
1169
1170 # Then platform specific footers.
1171
1172 if ($ARGS{PLATFORM} eq 'os2') {
1173     print <<EOP;
1174     dll_perlmain=main
1175     fill_extLibpath
1176     dir_subst
1177     Perl_OS2_handler_install
1178
1179 ; LAST_ORDINAL=$sym_ord
1180 EOP
1181 }
1182
1183 1;