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