makedef.pl

   1 #./perl -w
   2 #
   3 # Create the export list for perl.
   4 #
   5 # Needed by WIN32 and OS/2 for creating perl.dll,
   6 # and by AIX for creating libperl.a when -Duseshrplib is in effect,
   7 # and by VMS for creating perlshr.exe.
   8 #
   9 # Reads from information stored in
  10 #
  11 #    %Config::Config (ie config.sh)
  12 #    config.h
  13 #    embed.fnc
  14 #    globvar.sym
  15 #    intrpvar.h
  16 #    miniperl.map (on OS/2)
  17 #    perl5.def    (on OS/2; this is the old version of the file being made)
  18 #    perlio.sym
  19 #    perlvars.h
  20 #    regen/opcodes
  21 #
  22 # plus long lists of function names hard-coded directly in this script.
  23 #
  24 # Writes the result to STDOUT.
  25 #
  26 # Normally this script is invoked from a makefile (e.g. win32/Makefile),
  27 # which redirects STDOUT to a suitable file, such as:
  28 #
  29 #    perl5.def   OS/2
  30 #    perldll.def Windows
  31 #    perl.exp    AIX
  32 #    perl.imp    NetWare
  33 #    makedef.lis VMS
  34
  35 my $fold;
  36 my %ARGS;
  37 my %define;
  38
  39 BEGIN {
  40     BEGIN { unshift @INC, "lib" }
  41     use Config;
  42     use strict;
  43
  44     %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
  45
  46     sub process_cc_flags {
  47         foreach (map {split /\s+/, $_} @_) {
  48             $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
  49         }
  50     }
  51
  52     while (@ARGV) {
  53         my $flag = shift;
  54         if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
  55             process_cc_flags($1);
  56         } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
  57             $ARGS{$1} = $2;
  58         } elsif ($flag eq '--sort-fold') {
  59             ++$fold;
  60         }
  61     }
  62     my @PLATFORM = qw(aix win32 wince os2 netware vms test);
  63     my %PLATFORM;
  64     @PLATFORM{@PLATFORM} = ();
  65
  66     die "PLATFORM undefined, must be one of: @PLATFORM\n"
  67         unless defined $ARGS{PLATFORM};
  68     die "PLATFORM must be one of: @PLATFORM\n"
  69         unless exists $PLATFORM{$ARGS{PLATFORM}};
  70 }
  71 use constant PLATFORM => $ARGS{PLATFORM};
  72
  73 require "./$ARGS{TARG_DIR}regen/embed_lib.pl";
  74
  75 # Is the following guard strictly necessary? Added during refactoring
  76 # to keep the same behaviour when merging other code into here.
  77 process_cc_flags(@Config{qw(ccflags optimize)})
  78     if $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'wince'
  79     && $ARGS{PLATFORM} ne 'netware';
  80
  81 # Add the compile-time options that miniperl was built with to %define.
  82 # On Win32 these are not the same options as perl itself will be built
  83 # with since miniperl is built with a canned config (one of the win32/
  84 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
  85 # but they do include some #define's that are hard-coded in various
  86 # source files and header files and don't include any BUILDOPT's that
  87 # the user might have chosen to disable because the canned configs are
  88 # minimal configs that don't include any of those options.
  89
  90 #don't use the host Perl's -V defines for the WinCE Perl
  91 if($ARGS{PLATFORM} ne 'wince') {
  92     my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
  93     print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
  94     $define{$_} = 1 foreach @options;
  95 }
  96
  97 my %exportperlmalloc =
  98     (
  99        Perl_malloc              =>      "malloc",
 100        Perl_mfree               =>      "free",
 101        Perl_realloc             =>      "realloc",
 102        Perl_calloc              =>      "calloc",
 103     );
 104
 105 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
 106
 107 my $config_h = 'config.h';
 108 open(CFG, '<', $config_h) || die "Cannot open $config_h: $!\n";
 109 while (<CFG>) {
 110     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
 111                                            |SPRINTF_RETURNS_STRLEN
 112                                            |KILL_BY_SIGPRC
 113                                            |(?:PERL|USE|HAS)_\w+)\b/x;
 114 }
 115 close(CFG);
 116
 117 # perl.h logic duplication begins
 118
 119 if ($define{USE_ITHREADS}) {
 120     if (!$define{MULTIPLICITY}) {
 121         $define{MULTIPLICITY} = 1;
 122     }
 123 }
 124
 125 $define{PERL_IMPLICIT_CONTEXT} ||=
 126     $define{USE_ITHREADS} ||
 127     $define{MULTIPLICITY} ;
 128
 129 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
 130     $define{USE_REENTRANT_API} = 1;
 131 }
 132
 133 # perl.h logic duplication ends
 134
 135 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
 136      unless $ARGS{PLATFORM} eq 'test';
 137
 138 my $sym_ord = 0;
 139 my %ordinal;
 140
 141 if ($ARGS{PLATFORM} eq 'os2') {
 142     if (open my $fh, '<', 'perl5.def') {
 143       while (<$fh>) {
 144         last if /^\s*EXPORTS\b/;
 145       }
 146       while (<$fh>) {
 147         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 148         # This allows skipping ordinals which were used in older versions
 149         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 150       }
 151       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 152     }
 153 }
 154
 155 my %skip;
 156 # All platforms export boot_DynaLoader unconditionally.
 157 my %export = ( boot_DynaLoader => 1 );
 158
 159 sub try_symbols {
 160     foreach my $symbol (@_) {
 161         ++$export{$symbol} unless exists $skip{$symbol};
 162     }
 163 }
 164
 165 sub readvar {
 166     # $hash is the hash that we're adding to. For one of our callers, it will
 167     # actually be the skip hash but that doesn't affect the intent of what
 168     # we're doing, as in that case we skip adding something to the skip hash
 169     # for the second time.
 170
 171     my $file = $ARGS{TARG_DIR} . shift;
 172     my $hash = shift;
 173     my $proc = shift;
 174     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
 175
 176     while (<$vars>) {
 177         # All symbols have a Perl_ prefix because that's what embed.h sticks
 178         # in front of them.  The A?I?S?C? is strictly speaking wrong.
 179         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
 180
 181         my $var = "PL_$3";
 182         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
 183         ++$hash->{$symbol} unless exists $skip{$var};
 184     }
 185 }
 186
 187 if ($ARGS{PLATFORM} ne 'os2') {
 188     ++$skip{$_} foreach qw(
 189                      PL_cryptseen
 190                      PL_opsave
 191                      Perl_GetVars
 192                      Perl_dump_fds
 193                      Perl_my_bcopy
 194                      Perl_my_bzero
 195                      Perl_my_chsize
 196                      Perl_my_htonl
 197                      Perl_my_memcmp
 198                      Perl_my_memset
 199                      Perl_my_ntohl
 200                      Perl_my_swap
 201                          );
 202     if ($ARGS{PLATFORM} eq 'vms') {
 203         ++$skip{PL_statusvalue_posix};
 204         # This is a wrapper if we have symlink, not a replacement
 205         # if we don't.
 206         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
 207     } else {
 208         ++$skip{PL_statusvalue_vms};
 209         ++$skip{PL_perllib_sep};
 210         if ($ARGS{PLATFORM} ne 'aix') {
 211             ++$skip{$_} foreach qw(
 212                                 PL_DBcv
 213                                 PL_generation
 214                                 PL_lastgotoprobe
 215                                 PL_modcount
 216                                 main
 217                                  );
 218         }
 219     }
 220 }
 221
 222 if ($ARGS{PLATFORM} ne 'vms') {
 223     # VMS does its own thing for these symbols.
 224     ++$skip{$_} foreach qw(
 225                         PL_sig_handlers_initted
 226                         PL_sig_ignoring
 227                         PL_sig_defaulting
 228                          );
 229     if ($ARGS{PLATFORM} ne 'win32') {
 230         ++$skip{$_} foreach qw(
 231                             Perl_do_spawn
 232                             Perl_do_spawn_nowait
 233                             Perl_do_aspawn
 234                              );
 235     }
 236 }
 237
 238 if ($ARGS{PLATFORM} ne 'win32') {
 239     ++$skip{$_} foreach qw(
 240                     Perl_my_setlocale
 241                          );
 242 }
 243
 244 unless ($define{UNLINK_ALL_VERSIONS}) {
 245     ++$skip{Perl_unlnk};
 246 }
 247
 248 unless ($define{'DEBUGGING'}) {
 249     ++$skip{$_} foreach qw(
 250                     Perl_debop
 251                     Perl_debprofdump
 252                     Perl_debstack
 253                     Perl_debstackptrs
 254                     Perl_pad_sv
 255                     Perl_pad_setsv
 256                     Perl__setlocale_debug_string
 257                     Perl_set_padlist
 258                     Perl_hv_assert
 259                     PL_watchaddr
 260                     PL_watchok
 261                     PL_watch_pvx
 262                          );
 263 }
 264
 265 if ($define{'PERL_IMPLICIT_SYS'}) {
 266     ++$skip{$_} foreach qw(
 267                     Perl_my_popen
 268                     Perl_my_pclose
 269                          );
 270     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
 271     ++$export{perl_clone_host} if $define{USE_ITHREADS};
 272 }
 273 else {
 274     ++$skip{$_} foreach qw(
 275                     PL_Mem
 276                     PL_MemShared
 277                     PL_MemParse
 278                     PL_Env
 279                     PL_StdIO
 280                     PL_LIO
 281                     PL_Dir
 282                     PL_Sock
 283                     PL_Proc
 284                     perl_alloc_using
 285                     perl_clone_using
 286                          );
 287 }
 288
 289 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
 290     ++$skip{Perl_sv_setsv_cow};
 291 }
 292
 293 unless ($define{PERL_SAWAMPERSAND}) {
 294     ++$skip{PL_sawampersand};
 295 }
 296
 297 unless ($define{'USE_REENTRANT_API'}) {
 298     ++$skip{PL_reentrant_buffer};
 299 }
 300
 301 if ($define{'MYMALLOC'}) {
 302     try_symbols(qw(
 303                     Perl_dump_mstats
 304                     Perl_get_mstats
 305                     Perl_strdup
 306                     Perl_putenv
 307                     MallocCfg_ptr
 308                     MallocCfgP_ptr
 309                     ));
 310     unless ($define{USE_ITHREADS}) {
 311         ++$skip{PL_malloc_mutex}
 312     }
 313 }
 314 else {
 315     ++$skip{$_} foreach qw(
 316                     PL_malloc_mutex
 317                     Perl_dump_mstats
 318                     Perl_get_mstats
 319                     MallocCfg_ptr
 320                     MallocCfgP_ptr
 321                          );
 322 }
 323
 324 if ($define{'PERL_USE_SAFE_PUTENV'}) {
 325     ++$skip{PL_use_safe_putenv};
 326 }
 327
 328 unless ($define{'USE_ITHREADS'}) {
 329     ++$skip{PL_thr_key};
 330 }
 331
 332 # USE_5005THREADS symbols. Kept as reference for easier removal
 333 ++$skip{$_} foreach qw(
 334                     PL_sv_mutex
 335                     PL_strtab_mutex
 336                     PL_svref_mutex
 337                     PL_cred_mutex
 338                     PL_eval_mutex
 339                     PL_fdpid_mutex
 340                     PL_sv_lock_mutex
 341                     PL_eval_cond
 342                     PL_eval_owner
 343                     PL_threads_mutex
 344                     PL_nthreads
 345                     PL_nthreads_cond
 346                     PL_threadnum
 347                     PL_threadsv_names
 348                     PL_thrsv
 349                     PL_vtbl_mutex
 350                     Perl_condpair_magic
 351                     Perl_new_struct_thread
 352                     Perl_per_thread_magicals
 353                     Perl_thread_create
 354                     Perl_find_threadsv
 355                     Perl_unlock_condpair
 356                     Perl_magic_mutexfree
 357                     Perl_sv_lock
 358                      );
 359
 360 unless ($define{'USE_ITHREADS'}) {
 361     ++$skip{$_} foreach qw(
 362                     PL_check_mutex
 363                     PL_op_mutex
 364                     PL_regex_pad
 365                     PL_regex_padav
 366                     PL_dollarzero_mutex
 367                     PL_hints_mutex
 368                     PL_locale_mutex
 369                     PL_my_ctx_mutex
 370                     PL_perlio_mutex
 371                     PL_stashpad
 372                     PL_stashpadix
 373                     PL_stashpadmax
 374                     Perl_alloccopstash
 375                     Perl_allocfilegv
 376                     Perl_clone_params_del
 377                     Perl_clone_params_new
 378                     Perl_parser_dup
 379                     Perl_dirp_dup
 380                     Perl_cx_dup
 381                     Perl_si_dup
 382                     Perl_any_dup
 383                     Perl_ss_dup
 384                     Perl_fp_dup
 385                     Perl_gp_dup
 386                     Perl_he_dup
 387                     Perl_mg_dup
 388                     Perl_re_dup_guts
 389                     Perl_sv_dup
 390                     Perl_sv_dup_inc
 391                     Perl_rvpv_dup
 392                     Perl_hek_dup
 393                     Perl_sys_intern_dup
 394                     perl_clone
 395                     perl_clone_using
 396                     Perl_stashpv_hvname_match
 397                     Perl_regdupe_internal
 398                     Perl_newPADOP
 399                          );
 400 }
 401
 402 unless ($define{'HAS_NEWLOCALE'} && ! $define{'NO_POSIX_2008_LOCALE'})
 403 {
 404     ++$skip{$_} foreach qw(
 405         PL_C_locale_obj
 406     );
 407 }
 408
 409 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 410     ++$skip{$_} foreach qw(
 411                     PL_my_cxt_index
 412                     PL_my_cxt_list
 413                     PL_my_cxt_size
 414                     PL_my_cxt_keys
 415                     Perl_croak_nocontext
 416                     Perl_die_nocontext
 417                     Perl_deb_nocontext
 418                     Perl_form_nocontext
 419                     Perl_load_module_nocontext
 420                     Perl_mess_nocontext
 421                     Perl_warn_nocontext
 422                     Perl_warner_nocontext
 423                     Perl_newSVpvf_nocontext
 424                     Perl_sv_catpvf_nocontext
 425                     Perl_sv_setpvf_nocontext
 426                     Perl_sv_catpvf_mg_nocontext
 427                     Perl_sv_setpvf_mg_nocontext
 428                     Perl_my_cxt_init
 429                     Perl_my_cxt_index
 430                          );
 431 }
 432
 433 unless ($define{'PERL_OP_PARENT'}) {
 434     ++$skip{$_} foreach qw(
 435                     Perl_op_parent
 436                 );
 437 }
 438
 439 unless ($define{'USE_DTRACE'}) {
 440     ++$skip{$_} foreach qw(
 441                     Perl_dtrace_probe_call
 442                     Perl_dtrace_probe_load
 443                     Perl_dtrace_probe_op
 444                     Perl_dtrace_probe_phase
 445                 );
 446 }
 447
 448 unless ($define{'PERL_NEED_APPCTX'}) {
 449     ++$skip{PL_appctx};
 450 }
 451
 452 unless ($define{'PERL_NEED_TIMESBASE'}) {
 453     ++$skip{PL_timesbase};
 454 }
 455
 456 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 457     ++$skip{PL_sv_serial};
 458 }
 459
 460 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 461     ++$skip{PL_dumper_fd};
 462 }
 463
 464 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 465     ++$skip{Perl_gv_SVadd};
 466 }
 467
 468 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
 469     ++$skip{Perl_my_sprintf};
 470 }
 471
 472 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 473     ++$skip{PL_pidstatus};
 474 }
 475
 476 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 477     ++$skip{PL_memory_debug_header};
 478 }
 479
 480 unless ($define{'MULTIPLICITY'}) {
 481     ++$skip{$_} foreach qw(
 482                     PL_interp_size
 483                     PL_interp_size_5_18_0
 484                     PL_sv_yes
 485                     PL_sv_undef
 486                     PL_sv_no
 487                     PL_sv_zero
 488                          );
 489 }
 490
 491 unless ($define{'PERL_GLOBAL_STRUCT'}) {
 492     ++$skip{PL_global_struct_size};
 493 }
 494
 495 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
 496     ++$skip{$_} foreach qw(
 497                     PL_my_cxt_keys
 498                     Perl_my_cxt_index
 499                          );
 500 }
 501
 502 unless ($define{HAS_MMAP}) {
 503     ++$skip{PL_mmap_page_size};
 504 }
 505
 506 if ($define{HAS_SIGACTION}) {
 507     ++$skip{PL_sig_trapped};
 508
 509     if ($ARGS{PLATFORM} eq 'vms') {
 510         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
 511         ++$skip{PL_sig_ignoring};
 512         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
 513     }
 514 }
 515
 516 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
 517     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
 518     ++$skip{Perl_csighandler_init};
 519     ++$skip{Perl_my_kill};
 520     ++$skip{Perl_sig_to_vmscondition};
 521     ++$skip{PL_sig_defaulting};
 522     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
 523 }
 524
 525 unless ($define{USE_LOCALE_COLLATE}) {
 526     ++$skip{$_} foreach qw(
 527                     PL_collation_ix
 528                     PL_collation_name
 529                     PL_collation_standard
 530                     PL_collxfrm_base
 531                     PL_collxfrm_mult
 532                     Perl_sv_collxfrm
 533                     Perl_sv_collxfrm_flags
 534                          );
 535 }
 536
 537 unless ($define{USE_LOCALE_NUMERIC}) {
 538     ++$skip{$_} foreach qw(
 539                     PL_numeric_local
 540                     PL_numeric_name
 541                     PL_numeric_radix_sv
 542                     PL_numeric_standard
 543                          );
 544 }
 545
 546 unless ($define{'USE_C_BACKTRACE'}) {
 547     ++$skip{Perl_get_c_backtrace_dump};
 548     ++$skip{Perl_dump_c_backtrace};
 549 }
 550
 551 unless ($define{HAVE_INTERP_INTERN}) {
 552     ++$skip{$_} foreach qw(
 553                     Perl_sys_intern_clear
 554                     Perl_sys_intern_dup
 555                     Perl_sys_intern_init
 556                     PL_sys_intern
 557                          );
 558 }
 559
 560 if ($define{HAS_SIGNBIT}) {
 561     ++$skip{Perl_signbit};
 562 }
 563
 564 if ($define{'PERL_GLOBAL_STRUCT'}) {
 565     readvar('perlvars.h', \%skip);
 566     # This seems like the least ugly way to cope with the fact that PL_sh_path
 567     # is mentioned in perlvar.h and globvar.sym, and always exported.
 568     delete $skip{PL_sh_path};
 569     ++$export{Perl_GetVars};
 570     try_symbols(qw(PL_Vars PL_VarsPtr))
 571       unless $ARGS{CCTYPE} eq 'GCC' || $define{PERL_GLOBAL_STRUCT_PRIVATE};
 572 } else {
 573     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
 574 }
 575
 576 ++$skip{PL_op_exec_cnt}
 577     unless $define{PERL_TRACE_OPS};
 578
 579 ++$skip{PL_hash_chars}
 580     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
 581
 582 # functions from *.sym files
 583
 584 my @syms = qw(globvar.sym);
 585
 586 # Symbols that are the public face of the PerlIO layers implementation
 587 # These are in _addition to_ the public face of the abstraction
 588 # and need to be exported to allow XS modules to implement layers
 589 my @layer_syms = qw(
 590                     PerlIOBase_binmode
 591                     PerlIOBase_clearerr
 592                     PerlIOBase_close
 593                     PerlIOBase_dup
 594                     PerlIOBase_eof
 595                     PerlIOBase_error
 596                     PerlIOBase_fileno
 597                     PerlIOBase_open
 598                     PerlIOBase_noop_fail
 599                     PerlIOBase_noop_ok
 600                     PerlIOBase_popped
 601                     PerlIOBase_pushed
 602                     PerlIOBase_read
 603                     PerlIOBase_setlinebuf
 604                     PerlIOBase_unread
 605                     PerlIOBuf_bufsiz
 606                     PerlIOBuf_close
 607                     PerlIOBuf_dup
 608                     PerlIOBuf_fill
 609                     PerlIOBuf_flush
 610                     PerlIOBuf_get_base
 611                     PerlIOBuf_get_cnt
 612                     PerlIOBuf_get_ptr
 613                     PerlIOBuf_open
 614                     PerlIOBuf_popped
 615                     PerlIOBuf_pushed
 616                     PerlIOBuf_read
 617                     PerlIOBuf_seek
 618                     PerlIOBuf_set_ptrcnt
 619                     PerlIOBuf_tell
 620                     PerlIOBuf_unread
 621                     PerlIOBuf_write
 622                     PerlIO_allocate
 623                     PerlIO_apply_layera
 624                     PerlIO_apply_layers
 625                     PerlIO_arg_fetch
 626                     PerlIO_debug
 627                     PerlIO_define_layer
 628                     PerlIO_find_layer
 629                     PerlIO_isutf8
 630                     PerlIO_layer_fetch
 631                     PerlIO_list_alloc
 632                     PerlIO_list_free
 633                     PerlIO_modestr
 634                     PerlIO_parse_layers
 635                     PerlIO_pending
 636                     PerlIO_perlio
 637                     PerlIO_pop
 638                     PerlIO_push
 639                     PerlIO_sv_dup
 640                     Perl_PerlIO_clearerr
 641                     Perl_PerlIO_close
 642                     Perl_PerlIO_context_layers
 643                     Perl_PerlIO_eof
 644                     Perl_PerlIO_error
 645                     Perl_PerlIO_fileno
 646                     Perl_PerlIO_fill
 647                     Perl_PerlIO_flush
 648                     Perl_PerlIO_get_base
 649                     Perl_PerlIO_get_bufsiz
 650                     Perl_PerlIO_get_cnt
 651                     Perl_PerlIO_get_ptr
 652                     Perl_PerlIO_read
 653                     Perl_PerlIO_restore_errno
 654                     Perl_PerlIO_save_errno
 655                     Perl_PerlIO_seek
 656                     Perl_PerlIO_set_cnt
 657                     Perl_PerlIO_set_ptrcnt
 658                     Perl_PerlIO_setlinebuf
 659                     Perl_PerlIO_stderr
 660                     Perl_PerlIO_stdin
 661                     Perl_PerlIO_stdout
 662                     Perl_PerlIO_tell
 663                     Perl_PerlIO_unread
 664                     Perl_PerlIO_write
 665 );
 666 if ($ARGS{PLATFORM} eq 'netware') {
 667     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
 668 }
 669
 670 # Export the symbols that make up the PerlIO abstraction, regardless
 671 # of its implementation - read from a file
 672 push @syms, 'perlio.sym';
 673
 674 # PerlIO with layers - export implementation
 675 try_symbols(@layer_syms, 'perlsio_binmode');
 676
 677
 678 unless ($define{'USE_QUADMATH'}) {
 679   ++$skip{Perl_quadmath_format_needed};
 680   ++$skip{Perl_quadmath_format_single};
 681 }
 682
 683 ###############################################################################
 684
 685 # At this point all skip lists should be completed, as we are about to test
 686 # many symbols against them.
 687
 688 {
 689     my %seen;
 690     my ($embed) = setup_embed($ARGS{TARG_DIR});
 691
 692     foreach (@$embed) {
 693         my ($flags, $retval, $func, @args) = @$_;
 694         next unless $func;
 695         if (   ($flags =~ /[AX]/ && $flags !~ /[xmi]/)
 696             || ($flags =~ /b/ && ! $define{'NO_MATHOMS'}))
 697         {
 698             # public API, so export
 699
 700             # If a function is defined twice, for example before and after
 701             # an #else, only export its name once. Important to do this test
 702             # within the block, as the *first* definition may have flags which
 703             # mean "don't export"
 704             next if $seen{$func}++;
 705             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
 706             $func = "Perl_$func" if ($flags =~ /[pX]/ && $func !~ /^Perl_/);
 707             ++$export{$func} unless exists $skip{$func};
 708         }
 709     }
 710 }
 711
 712 foreach (@syms) {
 713     my $syms = $ARGS{TARG_DIR} . $_;
 714     open my $global, '<', $syms or die "failed to open $syms: $!\n";
 715     while (<$global>) {
 716         next unless /^([A-Za-z].*)/;
 717         my $symbol = "$1";
 718         ++$export{$symbol} unless exists $skip{$symbol};
 719     }
 720 }
 721
 722 # variables
 723
 724 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
 725     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
 726     # XXX AIX seems to want the perlvars.h symbols, for some reason
 727     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
 728         readvar('perlvars.h', \%export);
 729     }
 730 }
 731 else {
 732     unless ($define{'PERL_GLOBAL_STRUCT'}) {
 733         readvar('perlvars.h', \%export);
 734     }
 735     unless ($define{MULTIPLICITY}) {
 736         readvar('intrpvar.h', \%export);
 737     }
 738 }
 739
 740 # Oddities from PerlIO
 741 # All have alternate implementations in perlio.c, so always exist.
 742 # Should they be considered to be part of the API?
 743 try_symbols(qw(
 744                     PerlIO_binmode
 745                     PerlIO_getpos
 746                     PerlIO_init
 747                     PerlIO_setpos
 748                     PerlIO_tmpfile
 749              ));
 750
 751 if ($ARGS{PLATFORM} eq 'win32') {
 752     try_symbols(qw(
 753                                  win32_free_childdir
 754                                  win32_free_childenv
 755                                  win32_get_childdir
 756                                  win32_get_childenv
 757                                  win32_spawnvp
 758                  ));
 759 }
 760
 761 if ($ARGS{PLATFORM} eq 'wince') {
 762     ++$skip{'win32_isatty'}; # commit 4342f4d6df is win32-only
 763 }
 764
 765 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
 766     try_symbols(qw(
 767                             Perl_init_os_extras
 768                             Perl_thread_create
 769                             Perl_win32_init
 770                             Perl_win32_term
 771                             RunPerl
 772                             win32_async_check
 773                             win32_errno
 774                             win32_environ
 775                             win32_abort
 776                             win32_fstat
 777                             win32_stat
 778                             win32_pipe
 779                             win32_popen
 780                             win32_pclose
 781                             win32_rename
 782                             win32_setmode
 783                             win32_chsize
 784                             win32_lseek
 785                             win32_tell
 786                             win32_dup
 787                             win32_dup2
 788                             win32_open
 789                             win32_close
 790                             win32_eof
 791                             win32_isatty
 792                             win32_read
 793                             win32_write
 794                             win32_mkdir
 795                             win32_rmdir
 796                             win32_chdir
 797                             win32_flock
 798                             win32_execv
 799                             win32_execvp
 800                             win32_htons
 801                             win32_ntohs
 802                             win32_htonl
 803                             win32_ntohl
 804                             win32_inet_addr
 805                             win32_inet_ntoa
 806                             win32_socket
 807                             win32_bind
 808                             win32_listen
 809                             win32_accept
 810                             win32_connect
 811                             win32_send
 812                             win32_sendto
 813                             win32_recv
 814                             win32_recvfrom
 815                             win32_shutdown
 816                             win32_closesocket
 817                             win32_ioctlsocket
 818                             win32_setsockopt
 819                             win32_getsockopt
 820                             win32_getpeername
 821                             win32_getsockname
 822                             win32_gethostname
 823                             win32_gethostbyname
 824                             win32_gethostbyaddr
 825                             win32_getprotobyname
 826                             win32_getprotobynumber
 827                             win32_getservbyname
 828                             win32_getservbyport
 829                             win32_select
 830                             win32_endhostent
 831                             win32_endnetent
 832                             win32_endprotoent
 833                             win32_endservent
 834                             win32_getnetent
 835                             win32_getnetbyname
 836                             win32_getnetbyaddr
 837                             win32_getprotoent
 838                             win32_getservent
 839                             win32_sethostent
 840                             win32_setnetent
 841                             win32_setprotoent
 842                             win32_setservent
 843                             win32_getenv
 844                             win32_putenv
 845                             win32_perror
 846                             win32_malloc
 847                             win32_calloc
 848                             win32_realloc
 849                             win32_free
 850                             win32_sleep
 851                             win32_times
 852                             win32_access
 853                             win32_alarm
 854                             win32_chmod
 855                             win32_open_osfhandle
 856                             win32_get_osfhandle
 857                             win32_ioctl
 858                             win32_link
 859                             win32_unlink
 860                             win32_utime
 861                             win32_gettimeofday
 862                             win32_uname
 863                             win32_wait
 864                             win32_waitpid
 865                             win32_kill
 866                             win32_str_os_error
 867                             win32_opendir
 868                             win32_readdir
 869                             win32_telldir
 870                             win32_seekdir
 871                             win32_rewinddir
 872                             win32_closedir
 873                             win32_longpath
 874                             win32_ansipath
 875                             win32_os_id
 876                             win32_getpid
 877                             win32_crypt
 878                             win32_dynaload
 879                             win32_clearenv
 880                             win32_stdin
 881                             win32_stdout
 882                             win32_stderr
 883                             win32_ferror
 884                             win32_feof
 885                             win32_strerror
 886                             win32_fprintf
 887                             win32_printf
 888                             win32_vfprintf
 889                             win32_vprintf
 890                             win32_fread
 891                             win32_fwrite
 892                             win32_fopen
 893                             win32_fdopen
 894                             win32_freopen
 895                             win32_fclose
 896                             win32_fputs
 897                             win32_fputc
 898                             win32_ungetc
 899                             win32_getc
 900                             win32_fileno
 901                             win32_clearerr
 902                             win32_fflush
 903                             win32_ftell
 904                             win32_fseek
 905                             win32_fgetpos
 906                             win32_fsetpos
 907                             win32_rewind
 908                             win32_tmpfile
 909                             win32_setbuf
 910                             win32_setvbuf
 911                             win32_flushall
 912                             win32_fcloseall
 913                             win32_fgets
 914                             win32_gets
 915                             win32_fgetc
 916                             win32_putc
 917                             win32_puts
 918                             win32_getchar
 919                             win32_putchar
 920                  ));
 921 }
 922 elsif ($ARGS{PLATFORM} eq 'vms') {
 923     try_symbols(qw(
 924                       Perl_cando
 925                       Perl_cando_by_name
 926                       Perl_closedir
 927                       Perl_csighandler_init
 928                       Perl_do_rmdir
 929                       Perl_fileify_dirspec
 930                       Perl_fileify_dirspec_ts
 931                       Perl_fileify_dirspec_utf8
 932                       Perl_fileify_dirspec_utf8_ts
 933                       Perl_flex_fstat
 934                       Perl_flex_lstat
 935                       Perl_flex_stat
 936                       Perl_kill_file
 937                       Perl_my_chdir
 938                       Perl_my_chmod
 939                       Perl_my_crypt
 940                       Perl_my_endpwent
 941                       Perl_my_fclose
 942                       Perl_my_fdopen
 943                       Perl_my_fgetname
 944                       Perl_my_flush
 945                       Perl_my_fwrite
 946                       Perl_my_gconvert
 947                       Perl_my_getenv
 948                       Perl_my_getenv_len
 949                       Perl_my_getpwnam
 950                       Perl_my_getpwuid
 951                       Perl_my_gmtime
 952                       Perl_my_kill
 953                       Perl_my_killpg
 954                       Perl_my_localtime
 955                       Perl_my_mkdir
 956                       Perl_my_sigaction
 957                       Perl_my_symlink
 958                       Perl_my_time
 959                       Perl_my_tmpfile
 960                       Perl_my_trnlnm
 961                       Perl_my_utime
 962                       Perl_my_waitpid
 963                       Perl_opendir
 964                       Perl_pathify_dirspec
 965                       Perl_pathify_dirspec_ts
 966                       Perl_pathify_dirspec_utf8
 967                       Perl_pathify_dirspec_utf8_ts
 968                       Perl_readdir
 969                       Perl_readdir_r
 970                       Perl_rename
 971                       Perl_rmscopy
 972                       Perl_rmsexpand
 973                       Perl_rmsexpand_ts
 974                       Perl_rmsexpand_utf8
 975                       Perl_rmsexpand_utf8_ts
 976                       Perl_seekdir
 977                       Perl_sig_to_vmscondition
 978                       Perl_telldir
 979                       Perl_tounixpath
 980                       Perl_tounixpath_ts
 981                       Perl_tounixpath_utf8
 982                       Perl_tounixpath_utf8_ts
 983                       Perl_tounixspec
 984                       Perl_tounixspec_ts
 985                       Perl_tounixspec_utf8
 986                       Perl_tounixspec_utf8_ts
 987                       Perl_tovmspath
 988                       Perl_tovmspath_ts
 989                       Perl_tovmspath_utf8
 990                       Perl_tovmspath_utf8_ts
 991                       Perl_tovmsspec
 992                       Perl_tovmsspec_ts
 993                       Perl_tovmsspec_utf8
 994                       Perl_tovmsspec_utf8_ts
 995                       Perl_trim_unixpath
 996                       Perl_vms_case_tolerant
 997                       Perl_vms_do_aexec
 998                       Perl_vms_do_exec
 999                       Perl_vms_image_init
1000                       Perl_vms_realpath
1001                       Perl_vmssetenv
1002                       Perl_vmssetuserlnm
1003                       Perl_vmstrnenv
1004                       PerlIO_openn
1005                  ));
1006 }
1007 elsif ($ARGS{PLATFORM} eq 'os2') {
1008     try_symbols(qw(
1009                       ctermid
1010                       get_sysinfo
1011                       Perl_OS2_init
1012                       Perl_OS2_init3
1013                       Perl_OS2_term
1014                       OS2_Perl_data
1015                       dlopen
1016                       dlsym
1017                       dlerror
1018                       dlclose
1019                       dup2
1020                       dup
1021                       my_tmpfile
1022                       my_tmpnam
1023                       my_flock
1024                       my_rmdir
1025                       my_mkdir
1026                       my_getpwuid
1027                       my_getpwnam
1028                       my_getpwent
1029                       my_setpwent
1030                       my_endpwent
1031                       fork_with_resources
1032                       croak_with_os2error
1033                       setgrent
1034                       endgrent
1035                       getgrent
1036                       malloc_mutex
1037                       threads_mutex
1038                       nthreads
1039                       nthreads_cond
1040                       os2_cond_wait
1041                       os2_stat
1042                       os2_execname
1043                       async_mssleep
1044                       msCounter
1045                       InfoTable
1046                       pthread_join
1047                       pthread_create
1048                       pthread_detach
1049                       XS_Cwd_change_drive
1050                       XS_Cwd_current_drive
1051                       XS_Cwd_extLibpath
1052                       XS_Cwd_extLibpath_set
1053                       XS_Cwd_sys_abspath
1054                       XS_Cwd_sys_chdir
1055                       XS_Cwd_sys_cwd
1056                       XS_Cwd_sys_is_absolute
1057                       XS_Cwd_sys_is_relative
1058                       XS_Cwd_sys_is_rooted
1059                       XS_DynaLoader_mod2fname
1060                       XS_File__Copy_syscopy
1061                       Perl_Register_MQ
1062                       Perl_Deregister_MQ
1063                       Perl_Serve_Messages
1064                       Perl_Process_Messages
1065                       init_PMWIN_entries
1066                       PMWIN_entries
1067                       Perl_hab_GET
1068                       loadByOrdinal
1069                       pExtFCN
1070                       os2error
1071                       ResetWinError
1072                       CroakWinError
1073                       PL_do_undump
1074                  ));
1075 }
1076 elsif ($ARGS{PLATFORM} eq 'netware') {
1077     try_symbols(qw(
1078                         Perl_init_os_extras
1079                         Perl_thread_create
1080                         Perl_nw5_init
1081                         RunPerl
1082                         AllocStdPerl
1083                         FreeStdPerl
1084                         do_spawn2
1085                         do_aspawn
1086                         nw_uname
1087                         nw_stdin
1088                         nw_stdout
1089                         nw_stderr
1090                         nw_feof
1091                         nw_ferror
1092                         nw_fopen
1093                         nw_fclose
1094                         nw_clearerr
1095                         nw_getc
1096                         nw_fgets
1097                         nw_fputc
1098                         nw_fputs
1099                         nw_fflush
1100                         nw_ungetc
1101                         nw_fileno
1102                         nw_fdopen
1103                         nw_freopen
1104                         nw_fread
1105                         nw_fwrite
1106                         nw_setbuf
1107                         nw_setvbuf
1108                         nw_vfprintf
1109                         nw_ftell
1110                         nw_fseek
1111                         nw_rewind
1112                         nw_tmpfile
1113                         nw_fgetpos
1114                         nw_fsetpos
1115                         nw_dup
1116                         nw_access
1117                         nw_chmod
1118                         nw_chsize
1119                         nw_close
1120                         nw_dup2
1121                         nw_flock
1122                         nw_isatty
1123                         nw_link
1124                         nw_lseek
1125                         nw_stat
1126                         nw_mktemp
1127                         nw_open
1128                         nw_read
1129                         nw_rename
1130                         nw_setmode
1131                         nw_unlink
1132                         nw_utime
1133                         nw_write
1134                         nw_chdir
1135                         nw_rmdir
1136                         nw_closedir
1137                         nw_opendir
1138                         nw_readdir
1139                         nw_rewinddir
1140                         nw_seekdir
1141                         nw_telldir
1142                         nw_htonl
1143                         nw_htons
1144                         nw_ntohl
1145                         nw_ntohs
1146                         nw_accept
1147                         nw_bind
1148                         nw_connect
1149                         nw_endhostent
1150                         nw_endnetent
1151                         nw_endprotoent
1152                         nw_endservent
1153                         nw_gethostbyaddr
1154                         nw_gethostbyname
1155                         nw_gethostent
1156                         nw_gethostname
1157                         nw_getnetbyaddr
1158                         nw_getnetbyname
1159                         nw_getnetent
1160                         nw_getpeername
1161                         nw_getprotobyname
1162                         nw_getprotobynumber
1163                         nw_getprotoent
1164                         nw_getservbyname
1165                         nw_getservbyport
1166                         nw_getservent
1167                         nw_getsockname
1168                         nw_getsockopt
1169                         nw_inet_addr
1170                         nw_listen
1171                         nw_socket
1172                         nw_recv
1173                         nw_recvfrom
1174                         nw_select
1175                         nw_send
1176                         nw_sendto
1177                         nw_sethostent
1178                         nw_setnetent
1179                         nw_setprotoent
1180                         nw_setservent
1181                         nw_setsockopt
1182                         nw_inet_ntoa
1183                         nw_shutdown
1184                         nw_crypt
1185                         nw_execvp
1186                         nw_kill
1187                         nw_Popen
1188                         nw_Pclose
1189                         nw_Pipe
1190                         nw_times
1191                         nw_waitpid
1192                         nw_getpid
1193                         nw_spawnvp
1194                         nw_os_id
1195                         nw_open_osfhandle
1196                         nw_get_osfhandle
1197                         nw_abort
1198                         nw_sleep
1199                         nw_wait
1200                         nw_dynaload
1201                         nw_strerror
1202                         fnFpSetMode
1203                         fnInsertHashListAddrs
1204                         fnGetHashListAddrs
1205                         Perl_deb
1206                         Perl_sv_setsv
1207                         Perl_sv_catsv
1208                         Perl_sv_catpvn
1209                         Perl_sv_2pv
1210                         nw_freeenviron
1211                         Remove_Thread_Ctx
1212                  ));
1213 }
1214
1215 # When added this code was only run for Win32 and WinCE
1216 # Currently only Win32 links static extensions into the shared library.
1217 # The WinCE makefile doesn't appear to support static extensions, so this code
1218 # can't have any effect there.
1219 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1220 # list of dynamic extensions, and the rules to build them)
1221 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1222 # static extensions with -fPIC, but links them to perl, not libperl.so
1223 # The VMS build scripts don't yet implement static extensions at all.
1224
1225 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1226     # records of type boot_module for statically linked modules (except Dynaloader)
1227     my $static_ext = $Config{static_ext} // "";
1228     $static_ext =~ s/\//__/g;
1229     $static_ext =~ s/\bDynaLoader\b//;
1230     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1231     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1232 }
1233
1234 if ($ARGS{PLATFORM} eq 'os2') {
1235     my (%mapped, @missing);
1236     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1237     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1238     close MAP or die 'Cannot close miniperl.map';
1239
1240     @missing = grep { !exists $mapped{$_} }
1241                     keys %export;
1242     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1243     delete $export{$_} foreach @missing;
1244 }
1245
1246 ###############################################################################
1247
1248 # Now all symbols should be defined because next we are going to output them.
1249
1250 # Start with platform specific headers:
1251
1252 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1253     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1254         : "perl$Config{api_revision}$Config{api_version}";
1255     print "LIBRARY $dll\n";
1256     # The DESCRIPTION module definition file statement is not supported
1257     # by VC7 onwards.
1258     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1259         print "DESCRIPTION 'Perl interpreter'\n";
1260     }
1261     print "EXPORTS\n";
1262 }
1263 elsif ($ARGS{PLATFORM} eq 'os2') {
1264     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1265     $v .= '-thread' if $Config{archname} =~ /-thread/;
1266     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1267     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1268     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1269     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1270     print <<"---EOP---";
1271 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1272 $d
1273 STACKSIZE 32768
1274 CODE LOADONCALL
1275 DATA LOADONCALL NONSHARED MULTIPLE
1276 EXPORTS
1277 ---EOP---
1278 }
1279 elsif ($ARGS{PLATFORM} eq 'aix') {
1280     my $OSVER = `uname -v`;
1281     chop $OSVER;
1282     my $OSREL = `uname -r`;
1283     chop $OSREL;
1284     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1285         print "#! ..\n";
1286     } else {
1287         print "#!\n";
1288     }
1289 }
1290 elsif ($ARGS{PLATFORM} eq 'netware') {
1291         if ($ARGS{FILETYPE} eq 'def') {
1292         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1293         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1294         print "EXPORTS\n";
1295         }
1296 }
1297
1298 # Then the symbols
1299
1300 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1301 foreach my $symbol (@symbols) {
1302     if (PLATFORM eq 'win32' || PLATFORM eq 'wince') {
1303         # Remembering the origin file of each symbol is an alternative to PL_ matching
1304         if (substr($symbol, 0, 3) eq 'PL_') {
1305             print "\t$symbol DATA\n";
1306         }
1307         else {
1308             print "\t$symbol\n";
1309         }
1310     }
1311     elsif (PLATFORM eq 'os2') {
1312         printf qq(    %-31s \@%s\n),
1313           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1314         printf qq(    %-31s \@%s\n),
1315           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1316           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1317           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1318     }
1319     elsif (PLATFORM eq 'netware') {
1320         print "\t$symbol,\n";
1321     } else {
1322         print "$symbol\n";
1323     }
1324 }
1325
1326 # Then platform specific footers.
1327
1328 if ($ARGS{PLATFORM} eq 'os2') {
1329     print <<EOP;
1330     dll_perlmain=main
1331     fill_extLibpath
1332     dir_subst
1333     Perl_OS2_handler_install
1334
1335 ; LAST_ORDINAL=$sym_ord
1336 EOP
1337 }
1338
1339 1;