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