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{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
 111                                            |KILL_BY_SIGPRC
 112                                            |(?:PERL|USE|HAS)_\w+)\b/x;
 113 }
 114 close(CFG);
 115
 116 # perl.h logic duplication begins
 117
 118 if ($define{USE_ITHREADS}) {
 119     if (!$define{MULTIPLICITY}) {
 120         $define{MULTIPLICITY} = 1;
 121     }
 122 }
 123
 124 $define{PERL_IMPLICIT_CONTEXT} ||=
 125     $define{USE_ITHREADS} ||
 126     $define{MULTIPLICITY} ;
 127
 128 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
 129     $define{USE_REENTRANT_API} = 1;
 130 }
 131
 132 # perl.h logic duplication ends
 133
 134 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
 135      unless $ARGS{PLATFORM} eq 'test';
 136
 137 my $sym_ord = 0;
 138 my %ordinal;
 139
 140 if ($ARGS{PLATFORM} eq 'os2') {
 141     if (open my $fh, '<', 'perl5.def') {
 142       while (<$fh>) {
 143         last if /^\s*EXPORTS\b/;
 144       }
 145       while (<$fh>) {
 146         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 147         # This allows skipping ordinals which were used in older versions
 148         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 149       }
 150       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 151     }
 152 }
 153
 154 my %skip;
 155 # All platforms export boot_DynaLoader unconditionally.
 156 my %export = ( boot_DynaLoader => 1 );
 157
 158 sub try_symbols {
 159     foreach my $symbol (@_) {
 160         ++$export{$symbol} unless exists $skip{$symbol};
 161     }
 162 }
 163
 164 sub readvar {
 165     # $hash is the hash that we're adding to. For one of our callers, it will
 166     # actually be the skip hash but that doesn't affect the intent of what
 167     # we're doing, as in that case we skip adding something to the skip hash
 168     # for the second time.
 169
 170     my $file = $ARGS{TARG_DIR} . shift;
 171     my $hash = shift;
 172     my $proc = shift;
 173     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
 174
 175     while (<$vars>) {
 176         # All symbols have a Perl_ prefix because that's what embed.h sticks
 177         # in front of them.  The A?I?S?C? is strictly speaking wrong.
 178         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
 179
 180         my $var = "PL_$3";
 181         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
 182         ++$hash->{$symbol} unless exists $skip{$var};
 183     }
 184 }
 185
 186 if ($ARGS{PLATFORM} ne 'os2') {
 187     ++$skip{$_} foreach qw(
 188                      PL_cryptseen
 189                      PL_opsave
 190                      Perl_GetVars
 191                      Perl_dump_fds
 192                      Perl_my_bcopy
 193                      Perl_my_bzero
 194                      Perl_my_chsize
 195                      Perl_my_htonl
 196                      Perl_my_memcmp
 197                      Perl_my_memset
 198                      Perl_my_ntohl
 199                      Perl_my_swap
 200                          );
 201     if ($ARGS{PLATFORM} eq 'vms') {
 202         ++$skip{PL_statusvalue_posix};
 203         # This is a wrapper if we have symlink, not a replacement
 204         # if we don't.
 205         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
 206     } else {
 207         ++$skip{PL_statusvalue_vms};
 208         ++$skip{PL_perllib_sep};
 209         if ($ARGS{PLATFORM} ne 'aix') {
 210             ++$skip{$_} foreach qw(
 211                                 PL_DBcv
 212                                 PL_generation
 213                                 PL_lastgotoprobe
 214                                 PL_modcount
 215                                 main
 216                                  );
 217         }
 218     }
 219 }
 220
 221 if ($ARGS{PLATFORM} ne 'vms') {
 222     # VMS does its own thing for these symbols.
 223     ++$skip{$_} foreach qw(
 224                         PL_sig_handlers_initted
 225                         PL_sig_ignoring
 226                         PL_sig_defaulting
 227                          );
 228     if ($ARGS{PLATFORM} ne 'win32') {
 229         ++$skip{$_} foreach qw(
 230                             Perl_do_spawn
 231                             Perl_do_spawn_nowait
 232                             Perl_do_aspawn
 233                              );
 234     }
 235 }
 236
 237 if ($ARGS{PLATFORM} ne 'win32') {
 238     ++$skip{$_} foreach qw(
 239                     Perl_my_setlocale
 240                          );
 241 }
 242
 243 unless ($define{UNLINK_ALL_VERSIONS}) {
 244     ++$skip{Perl_unlnk};
 245 }
 246
 247 unless ($define{'DEBUGGING'}) {
 248     ++$skip{$_} foreach qw(
 249                     Perl_debop
 250                     Perl_debprofdump
 251                     Perl_debstack
 252                     Perl_debstackptrs
 253                     Perl_pad_sv
 254                     Perl_pad_setsv
 255                     Perl__setlocale_debug_string
 256                     Perl_set_padlist
 257                     Perl_hv_assert
 258                     PL_watchaddr
 259                     PL_watchok
 260                     PL_watch_pvx
 261                          );
 262 }
 263
 264 if ($define{'PERL_IMPLICIT_SYS'}) {
 265     ++$skip{$_} foreach qw(
 266                     Perl_my_popen
 267                     Perl_my_pclose
 268                          );
 269     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
 270     ++$export{perl_clone_host} if $define{USE_ITHREADS};
 271 }
 272 else {
 273     ++$skip{$_} foreach qw(
 274                     PL_Mem
 275                     PL_MemShared
 276                     PL_MemParse
 277                     PL_Env
 278                     PL_StdIO
 279                     PL_LIO
 280                     PL_Dir
 281                     PL_Sock
 282                     PL_Proc
 283                     perl_alloc_using
 284                     perl_clone_using
 285                          );
 286 }
 287
 288 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
 289     ++$skip{Perl_sv_setsv_cow};
 290 }
 291
 292 unless ($define{PERL_SAWAMPERSAND}) {
 293     ++$skip{PL_sawampersand};
 294 }
 295
 296 unless ($define{'USE_REENTRANT_API'}) {
 297     ++$skip{PL_reentrant_buffer};
 298 }
 299
 300 if ($define{'MYMALLOC'}) {
 301     try_symbols(qw(
 302                     Perl_dump_mstats
 303                     Perl_get_mstats
 304                     Perl_strdup
 305                     Perl_putenv
 306                     MallocCfg_ptr
 307                     MallocCfgP_ptr
 308                     ));
 309     unless ($define{USE_ITHREADS}) {
 310         ++$skip{PL_malloc_mutex}
 311     }
 312 }
 313 else {
 314     ++$skip{$_} foreach qw(
 315                     PL_malloc_mutex
 316                     Perl_dump_mstats
 317                     Perl_get_mstats
 318                     MallocCfg_ptr
 319                     MallocCfgP_ptr
 320                          );
 321 }
 322
 323 if ($define{'PERL_USE_SAFE_PUTENV'}) {
 324     ++$skip{PL_use_safe_putenv};
 325 }
 326
 327 unless ($define{'USE_ITHREADS'}) {
 328     ++$skip{PL_thr_key};
 329 }
 330
 331 # USE_5005THREADS symbols. Kept as reference for easier removal
 332 ++$skip{$_} foreach qw(
 333                     PL_sv_mutex
 334                     PL_strtab_mutex
 335                     PL_svref_mutex
 336                     PL_cred_mutex
 337                     PL_eval_mutex
 338                     PL_fdpid_mutex
 339                     PL_sv_lock_mutex
 340                     PL_eval_cond
 341                     PL_eval_owner
 342                     PL_threads_mutex
 343                     PL_nthreads
 344                     PL_nthreads_cond
 345                     PL_threadnum
 346                     PL_threadsv_names
 347                     PL_thrsv
 348                     PL_vtbl_mutex
 349                     Perl_condpair_magic
 350                     Perl_new_struct_thread
 351                     Perl_per_thread_magicals
 352                     Perl_thread_create
 353                     Perl_find_threadsv
 354                     Perl_unlock_condpair
 355                     Perl_magic_mutexfree
 356                     Perl_sv_lock
 357                      );
 358
 359 unless ($define{'USE_ITHREADS'}) {
 360     ++$skip{$_} foreach qw(
 361                     PL_keyword_plugin_mutex
 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_lc_numeric_mutex
 370                     PL_my_ctx_mutex
 371                     PL_perlio_mutex
 372                     PL_stashpad
 373                     PL_stashpadix
 374                     PL_stashpadmax
 375                     Perl_alloccopstash
 376                     Perl_allocfilegv
 377                     Perl_clone_params_del
 378                     Perl_clone_params_new
 379                     Perl_parser_dup
 380                     Perl_dirp_dup
 381                     Perl_cx_dup
 382                     Perl_si_dup
 383                     Perl_any_dup
 384                     Perl_ss_dup
 385                     Perl_fp_dup
 386                     Perl_gp_dup
 387                     Perl_he_dup
 388                     Perl_mg_dup
 389                     Perl_re_dup_guts
 390                     Perl_sv_dup
 391                     Perl_sv_dup_inc
 392                     Perl_rvpv_dup
 393                     Perl_hek_dup
 394                     Perl_sys_intern_dup
 395                     perl_clone
 396                     perl_clone_using
 397                     Perl_stashpv_hvname_match
 398                     Perl_regdupe_internal
 399                     Perl_newPADOP
 400                          );
 401 }
 402
 403 unless ( $define{'HAS_NEWLOCALE'}
 404     &&   $define{'HAS_FREELOCALE'}
 405     &&   $define{'HAS_USELOCALE'}
 406     && ! $define{'NO_POSIX_2008_LOCALE'})
 407 {
 408     ++$skip{$_} foreach qw(
 409         PL_C_locale_obj
 410         PL_underlying_numeric_obj
 411     );
 412 }
 413
 414 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
 415     ++$skip{$_} foreach qw(
 416                     PL_my_cxt_index
 417                     PL_my_cxt_list
 418                     PL_my_cxt_size
 419                     PL_my_cxt_keys
 420                     Perl_croak_nocontext
 421                     Perl_die_nocontext
 422                     Perl_deb_nocontext
 423                     Perl_form_nocontext
 424                     Perl_load_module_nocontext
 425                     Perl_mess_nocontext
 426                     Perl_warn_nocontext
 427                     Perl_warner_nocontext
 428                     Perl_newSVpvf_nocontext
 429                     Perl_sv_catpvf_nocontext
 430                     Perl_sv_setpvf_nocontext
 431                     Perl_sv_catpvf_mg_nocontext
 432                     Perl_sv_setpvf_mg_nocontext
 433                     Perl_my_cxt_init
 434                     Perl_my_cxt_index
 435                          );
 436 }
 437
 438 unless ($define{'PERL_OP_PARENT'}) {
 439     ++$skip{$_} foreach qw(
 440                     Perl_op_parent
 441                 );
 442 }
 443
 444 unless ($define{'USE_DTRACE'}) {
 445     ++$skip{$_} foreach qw(
 446                     Perl_dtrace_probe_call
 447                     Perl_dtrace_probe_load
 448                     Perl_dtrace_probe_op
 449                     Perl_dtrace_probe_phase
 450                 );
 451 }
 452
 453 unless ($define{'PERL_NEED_APPCTX'}) {
 454     ++$skip{PL_appctx};
 455 }
 456
 457 unless ($define{'PERL_NEED_TIMESBASE'}) {
 458     ++$skip{PL_timesbase};
 459 }
 460
 461 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 462     ++$skip{PL_sv_serial};
 463 }
 464
 465 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 466     ++$skip{PL_dumper_fd};
 467 }
 468
 469 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 470     ++$skip{Perl_gv_SVadd};
 471 }
 472
 473 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 474     ++$skip{PL_pidstatus};
 475 }
 476
 477 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 478     ++$skip{PL_memory_debug_header};
 479 }
 480
 481 unless ($define{'MULTIPLICITY'}) {
 482     ++$skip{$_} foreach qw(
 483                     PL_interp_size
 484                     PL_interp_size_5_18_0
 485                     PL_sv_yes
 486                     PL_sv_undef
 487                     PL_sv_no
 488                     PL_sv_zero
 489                          );
 490 }
 491
 492 unless ($define{'PERL_GLOBAL_STRUCT'}) {
 493     ++$skip{PL_global_struct_size};
 494 }
 495
 496 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
 497     ++$skip{$_} foreach qw(
 498                     PL_my_cxt_keys
 499                     Perl_my_cxt_index
 500                          );
 501 }
 502
 503 unless ($define{HAS_MMAP}) {
 504     ++$skip{PL_mmap_page_size};
 505 }
 506
 507 if ($define{HAS_SIGACTION}) {
 508     ++$skip{PL_sig_trapped};
 509
 510     if ($ARGS{PLATFORM} eq 'vms') {
 511         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
 512         ++$skip{PL_sig_ignoring};
 513         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
 514     }
 515 }
 516
 517 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
 518     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
 519     ++$skip{Perl_csighandler_init};
 520     ++$skip{Perl_my_kill};
 521     ++$skip{Perl_sig_to_vmscondition};
 522     ++$skip{PL_sig_defaulting};
 523     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
 524 }
 525
 526 if ($define{'HAS_STRNLEN'})
 527 {
 528     ++$skip{Perl_my_strnlen};
 529 }
 530
 531 unless ($define{USE_LOCALE_COLLATE}) {
 532     ++$skip{$_} foreach qw(
 533                     PL_collation_ix
 534                     PL_collation_name
 535                     PL_collation_standard
 536                     PL_collxfrm_base
 537                     PL_collxfrm_mult
 538                     Perl_sv_collxfrm
 539                     Perl_sv_collxfrm_flags
 540                          );
 541 }
 542
 543 unless ($define{USE_LOCALE_NUMERIC}) {
 544     ++$skip{$_} foreach qw(
 545                     PL_numeric_local
 546                     PL_numeric_name
 547                     PL_numeric_radix_sv
 548                     PL_numeric_standard
 549                          );
 550 }
 551
 552 unless ($define{'USE_C_BACKTRACE'}) {
 553     ++$skip{Perl_get_c_backtrace_dump};
 554     ++$skip{Perl_dump_c_backtrace};
 555 }
 556
 557 unless ($define{HAVE_INTERP_INTERN}) {
 558     ++$skip{$_} foreach qw(
 559                     Perl_sys_intern_clear
 560                     Perl_sys_intern_dup
 561                     Perl_sys_intern_init
 562                     PL_sys_intern
 563                          );
 564 }
 565
 566 if ($define{HAS_SIGNBIT}) {
 567     ++$skip{Perl_signbit};
 568 }
 569
 570 if ($define{'PERL_GLOBAL_STRUCT'}) {
 571     readvar('perlvars.h', \%skip);
 572     # This seems like the least ugly way to cope with the fact that PL_sh_path
 573     # is mentioned in perlvar.h and globvar.sym, and always exported.
 574     delete $skip{PL_sh_path};
 575     ++$export{Perl_GetVars};
 576     try_symbols(qw(PL_Vars PL_VarsPtr))
 577       unless $ARGS{CCTYPE} eq 'GCC' || $define{PERL_GLOBAL_STRUCT_PRIVATE};
 578 } else {
 579     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
 580 }
 581
 582 ++$skip{PL_op_exec_cnt}
 583     unless $define{PERL_TRACE_OPS};
 584
 585 ++$skip{PL_hash_chars}
 586     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
 587
 588 # functions from *.sym files
 589
 590 my @syms = qw(globvar.sym);
 591
 592 # Symbols that are the public face of the PerlIO layers implementation
 593 # These are in _addition to_ the public face of the abstraction
 594 # and need to be exported to allow XS modules to implement layers
 595 my @layer_syms = qw(
 596                     PerlIOBase_binmode
 597                     PerlIOBase_clearerr
 598                     PerlIOBase_close
 599                     PerlIOBase_dup
 600                     PerlIOBase_eof
 601                     PerlIOBase_error
 602                     PerlIOBase_fileno
 603                     PerlIOBase_open
 604                     PerlIOBase_noop_fail
 605                     PerlIOBase_noop_ok
 606                     PerlIOBase_popped
 607                     PerlIOBase_pushed
 608                     PerlIOBase_read
 609                     PerlIOBase_setlinebuf
 610                     PerlIOBase_unread
 611                     PerlIOBuf_bufsiz
 612                     PerlIOBuf_close
 613                     PerlIOBuf_dup
 614                     PerlIOBuf_fill
 615                     PerlIOBuf_flush
 616                     PerlIOBuf_get_base
 617                     PerlIOBuf_get_cnt
 618                     PerlIOBuf_get_ptr
 619                     PerlIOBuf_open
 620                     PerlIOBuf_popped
 621                     PerlIOBuf_pushed
 622                     PerlIOBuf_read
 623                     PerlIOBuf_seek
 624                     PerlIOBuf_set_ptrcnt
 625                     PerlIOBuf_tell
 626                     PerlIOBuf_unread
 627                     PerlIOBuf_write
 628                     PerlIO_allocate
 629                     PerlIO_apply_layera
 630                     PerlIO_apply_layers
 631                     PerlIO_arg_fetch
 632                     PerlIO_debug
 633                     PerlIO_define_layer
 634                     PerlIO_find_layer
 635                     PerlIO_isutf8
 636                     PerlIO_layer_fetch
 637                     PerlIO_list_alloc
 638                     PerlIO_list_free
 639                     PerlIO_modestr
 640                     PerlIO_parse_layers
 641                     PerlIO_pending
 642                     PerlIO_perlio
 643                     PerlIO_pop
 644                     PerlIO_push
 645                     PerlIO_sv_dup
 646                     Perl_PerlIO_clearerr
 647                     Perl_PerlIO_close
 648                     Perl_PerlIO_context_layers
 649                     Perl_PerlIO_eof
 650                     Perl_PerlIO_error
 651                     Perl_PerlIO_fileno
 652                     Perl_PerlIO_fill
 653                     Perl_PerlIO_flush
 654                     Perl_PerlIO_get_base
 655                     Perl_PerlIO_get_bufsiz
 656                     Perl_PerlIO_get_cnt
 657                     Perl_PerlIO_get_ptr
 658                     Perl_PerlIO_read
 659                     Perl_PerlIO_restore_errno
 660                     Perl_PerlIO_save_errno
 661                     Perl_PerlIO_seek
 662                     Perl_PerlIO_set_cnt
 663                     Perl_PerlIO_set_ptrcnt
 664                     Perl_PerlIO_setlinebuf
 665                     Perl_PerlIO_stderr
 666                     Perl_PerlIO_stdin
 667                     Perl_PerlIO_stdout
 668                     Perl_PerlIO_tell
 669                     Perl_PerlIO_unread
 670                     Perl_PerlIO_write
 671 );
 672 if ($ARGS{PLATFORM} eq 'netware') {
 673     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
 674 }
 675
 676 # Export the symbols that make up the PerlIO abstraction, regardless
 677 # of its implementation - read from a file
 678 push @syms, 'perlio.sym';
 679
 680 # PerlIO with layers - export implementation
 681 try_symbols(@layer_syms, 'perlsio_binmode');
 682
 683
 684 unless ($define{'USE_QUADMATH'}) {
 685   ++$skip{Perl_quadmath_format_needed};
 686   ++$skip{Perl_quadmath_format_single};
 687 }
 688
 689 ###############################################################################
 690
 691 # At this point all skip lists should be completed, as we are about to test
 692 # many symbols against them.
 693
 694 {
 695     my %seen;
 696     my ($embed) = setup_embed($ARGS{TARG_DIR});
 697
 698     foreach (@$embed) {
 699         my ($flags, $retval, $func, @args) = @$_;
 700         next unless $func;
 701         if (   ($flags =~ /[AX]/ && $flags !~ /[xmi]/)
 702             || ($flags =~ /b/ && ! $define{'NO_MATHOMS'}))
 703         {
 704             # public API, so export
 705
 706             # If a function is defined twice, for example before and after
 707             # an #else, only export its name once. Important to do this test
 708             # within the block, as the *first* definition may have flags which
 709             # mean "don't export"
 710             next if $seen{$func}++;
 711             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
 712             $func = "Perl_$func" if ($flags =~ /[pX]/ && $func !~ /^Perl_/);
 713             ++$export{$func} unless exists $skip{$func};
 714         }
 715     }
 716 }
 717
 718 foreach (@syms) {
 719     my $syms = $ARGS{TARG_DIR} . $_;
 720     open my $global, '<', $syms or die "failed to open $syms: $!\n";
 721     while (<$global>) {
 722         next unless /^([A-Za-z].*)/;
 723         my $symbol = "$1";
 724         ++$export{$symbol} unless exists $skip{$symbol};
 725     }
 726 }
 727
 728 # variables
 729
 730 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
 731     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
 732     # XXX AIX seems to want the perlvars.h symbols, for some reason
 733     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
 734         readvar('perlvars.h', \%export);
 735     }
 736 }
 737 else {
 738     unless ($define{'PERL_GLOBAL_STRUCT'}) {
 739         readvar('perlvars.h', \%export);
 740     }
 741     unless ($define{MULTIPLICITY}) {
 742         readvar('intrpvar.h', \%export);
 743     }
 744 }
 745
 746 # Oddities from PerlIO
 747 # All have alternate implementations in perlio.c, so always exist.
 748 # Should they be considered to be part of the API?
 749 try_symbols(qw(
 750                     PerlIO_binmode
 751                     PerlIO_getpos
 752                     PerlIO_init
 753                     PerlIO_setpos
 754                     PerlIO_tmpfile
 755              ));
 756
 757 if ($ARGS{PLATFORM} eq 'win32') {
 758     try_symbols(qw(
 759                                  win32_free_childdir
 760                                  win32_free_childenv
 761                                  win32_get_childdir
 762                                  win32_get_childenv
 763                                  win32_spawnvp
 764                  ));
 765 }
 766
 767 if ($ARGS{PLATFORM} eq 'wince') {
 768     ++$skip{'win32_isatty'}; # commit 4342f4d6df is win32-only
 769 }
 770
 771 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
 772     try_symbols(qw(
 773                             Perl_init_os_extras
 774                             Perl_thread_create
 775                             Perl_win32_init
 776                             Perl_win32_term
 777                             RunPerl
 778                             win32_async_check
 779                             win32_errno
 780                             win32_environ
 781                             win32_abort
 782                             win32_fstat
 783                             win32_stat
 784                             win32_pipe
 785                             win32_popen
 786                             win32_pclose
 787                             win32_rename
 788                             win32_setmode
 789                             win32_chsize
 790                             win32_lseek
 791                             win32_tell
 792                             win32_dup
 793                             win32_dup2
 794                             win32_open
 795                             win32_close
 796                             win32_eof
 797                             win32_isatty
 798                             win32_read
 799                             win32_write
 800                             win32_mkdir
 801                             win32_rmdir
 802                             win32_chdir
 803                             win32_flock
 804                             win32_execv
 805                             win32_execvp
 806                             win32_htons
 807                             win32_ntohs
 808                             win32_htonl
 809                             win32_ntohl
 810                             win32_inet_addr
 811                             win32_inet_ntoa
 812                             win32_socket
 813                             win32_bind
 814                             win32_listen
 815                             win32_accept
 816                             win32_connect
 817                             win32_send
 818                             win32_sendto
 819                             win32_recv
 820                             win32_recvfrom
 821                             win32_shutdown
 822                             win32_closesocket
 823                             win32_ioctlsocket
 824                             win32_setsockopt
 825                             win32_getsockopt
 826                             win32_getpeername
 827                             win32_getsockname
 828                             win32_gethostname
 829                             win32_gethostbyname
 830                             win32_gethostbyaddr
 831                             win32_getprotobyname
 832                             win32_getprotobynumber
 833                             win32_getservbyname
 834                             win32_getservbyport
 835                             win32_select
 836                             win32_endhostent
 837                             win32_endnetent
 838                             win32_endprotoent
 839                             win32_endservent
 840                             win32_getnetent
 841                             win32_getnetbyname
 842                             win32_getnetbyaddr
 843                             win32_getprotoent
 844                             win32_getservent
 845                             win32_sethostent
 846                             win32_setnetent
 847                             win32_setprotoent
 848                             win32_setservent
 849                             win32_getenv
 850                             win32_putenv
 851                             win32_perror
 852                             win32_malloc
 853                             win32_calloc
 854                             win32_realloc
 855                             win32_free
 856                             win32_sleep
 857                             win32_times
 858                             win32_access
 859                             win32_alarm
 860                             win32_chmod
 861                             win32_open_osfhandle
 862                             win32_get_osfhandle
 863                             win32_ioctl
 864                             win32_link
 865                             win32_unlink
 866                             win32_utime
 867                             win32_gettimeofday
 868                             win32_uname
 869                             win32_wait
 870                             win32_waitpid
 871                             win32_kill
 872                             win32_str_os_error
 873                             win32_opendir
 874                             win32_readdir
 875                             win32_telldir
 876                             win32_seekdir
 877                             win32_rewinddir
 878                             win32_closedir
 879                             win32_longpath
 880                             win32_ansipath
 881                             win32_os_id
 882                             win32_getpid
 883                             win32_crypt
 884                             win32_dynaload
 885                             win32_clearenv
 886                             win32_stdin
 887                             win32_stdout
 888                             win32_stderr
 889                             win32_ferror
 890                             win32_feof
 891                             win32_strerror
 892                             win32_fprintf
 893                             win32_printf
 894                             win32_vfprintf
 895                             win32_vprintf
 896                             win32_fread
 897                             win32_fwrite
 898                             win32_fopen
 899                             win32_fdopen
 900                             win32_freopen
 901                             win32_fclose
 902                             win32_fputs
 903                             win32_fputc
 904                             win32_ungetc
 905                             win32_getc
 906                             win32_fileno
 907                             win32_clearerr
 908                             win32_fflush
 909                             win32_ftell
 910                             win32_fseek
 911                             win32_fgetpos
 912                             win32_fsetpos
 913                             win32_rewind
 914                             win32_tmpfile
 915                             win32_setbuf
 916                             win32_setvbuf
 917                             win32_flushall
 918                             win32_fcloseall
 919                             win32_fgets
 920                             win32_gets
 921                             win32_fgetc
 922                             win32_putc
 923                             win32_puts
 924                             win32_getchar
 925                             win32_putchar
 926                  ));
 927 }
 928 elsif ($ARGS{PLATFORM} eq 'vms') {
 929     try_symbols(qw(
 930                       Perl_cando
 931                       Perl_cando_by_name
 932                       Perl_closedir
 933                       Perl_csighandler_init
 934                       Perl_do_rmdir
 935                       Perl_fileify_dirspec
 936                       Perl_fileify_dirspec_ts
 937                       Perl_fileify_dirspec_utf8
 938                       Perl_fileify_dirspec_utf8_ts
 939                       Perl_flex_fstat
 940                       Perl_flex_lstat
 941                       Perl_flex_stat
 942                       Perl_kill_file
 943                       Perl_my_chdir
 944                       Perl_my_chmod
 945                       Perl_my_crypt
 946                       Perl_my_endpwent
 947                       Perl_my_fclose
 948                       Perl_my_fdopen
 949                       Perl_my_fgetname
 950                       Perl_my_flush
 951                       Perl_my_fwrite
 952                       Perl_my_gconvert
 953                       Perl_my_getenv
 954                       Perl_my_getenv_len
 955                       Perl_my_getpwnam
 956                       Perl_my_getpwuid
 957                       Perl_my_gmtime
 958                       Perl_my_kill
 959                       Perl_my_killpg
 960                       Perl_my_localtime
 961                       Perl_my_mkdir
 962                       Perl_my_sigaction
 963                       Perl_my_symlink
 964                       Perl_my_time
 965                       Perl_my_tmpfile
 966                       Perl_my_trnlnm
 967                       Perl_my_utime
 968                       Perl_my_waitpid
 969                       Perl_opendir
 970                       Perl_pathify_dirspec
 971                       Perl_pathify_dirspec_ts
 972                       Perl_pathify_dirspec_utf8
 973                       Perl_pathify_dirspec_utf8_ts
 974                       Perl_readdir
 975                       Perl_readdir_r
 976                       Perl_rename
 977                       Perl_rmscopy
 978                       Perl_rmsexpand
 979                       Perl_rmsexpand_ts
 980                       Perl_rmsexpand_utf8
 981                       Perl_rmsexpand_utf8_ts
 982                       Perl_seekdir
 983                       Perl_sig_to_vmscondition
 984                       Perl_telldir
 985                       Perl_tounixpath
 986                       Perl_tounixpath_ts
 987                       Perl_tounixpath_utf8
 988                       Perl_tounixpath_utf8_ts
 989                       Perl_tounixspec
 990                       Perl_tounixspec_ts
 991                       Perl_tounixspec_utf8
 992                       Perl_tounixspec_utf8_ts
 993                       Perl_tovmspath
 994                       Perl_tovmspath_ts
 995                       Perl_tovmspath_utf8
 996                       Perl_tovmspath_utf8_ts
 997                       Perl_tovmsspec
 998                       Perl_tovmsspec_ts
 999                       Perl_tovmsspec_utf8
1000                       Perl_tovmsspec_utf8_ts
1001                       Perl_trim_unixpath
1002                       Perl_vms_case_tolerant
1003                       Perl_vms_do_aexec
1004                       Perl_vms_do_exec
1005                       Perl_vms_image_init
1006                       Perl_vms_realpath
1007                       Perl_vmssetenv
1008                       Perl_vmssetuserlnm
1009                       Perl_vmstrnenv
1010                       PerlIO_openn
1011                  ));
1012 }
1013 elsif ($ARGS{PLATFORM} eq 'os2') {
1014     try_symbols(qw(
1015                       ctermid
1016                       get_sysinfo
1017                       Perl_OS2_init
1018                       Perl_OS2_init3
1019                       Perl_OS2_term
1020                       OS2_Perl_data
1021                       dlopen
1022                       dlsym
1023                       dlerror
1024                       dlclose
1025                       dup2
1026                       dup
1027                       my_tmpfile
1028                       my_tmpnam
1029                       my_flock
1030                       my_rmdir
1031                       my_mkdir
1032                       my_getpwuid
1033                       my_getpwnam
1034                       my_getpwent
1035                       my_setpwent
1036                       my_endpwent
1037                       fork_with_resources
1038                       croak_with_os2error
1039                       setgrent
1040                       endgrent
1041                       getgrent
1042                       malloc_mutex
1043                       threads_mutex
1044                       nthreads
1045                       nthreads_cond
1046                       os2_cond_wait
1047                       os2_stat
1048                       os2_execname
1049                       async_mssleep
1050                       msCounter
1051                       InfoTable
1052                       pthread_join
1053                       pthread_create
1054                       pthread_detach
1055                       XS_Cwd_change_drive
1056                       XS_Cwd_current_drive
1057                       XS_Cwd_extLibpath
1058                       XS_Cwd_extLibpath_set
1059                       XS_Cwd_sys_abspath
1060                       XS_Cwd_sys_chdir
1061                       XS_Cwd_sys_cwd
1062                       XS_Cwd_sys_is_absolute
1063                       XS_Cwd_sys_is_relative
1064                       XS_Cwd_sys_is_rooted
1065                       XS_DynaLoader_mod2fname
1066                       XS_File__Copy_syscopy
1067                       Perl_Register_MQ
1068                       Perl_Deregister_MQ
1069                       Perl_Serve_Messages
1070                       Perl_Process_Messages
1071                       init_PMWIN_entries
1072                       PMWIN_entries
1073                       Perl_hab_GET
1074                       loadByOrdinal
1075                       pExtFCN
1076                       os2error
1077                       ResetWinError
1078                       CroakWinError
1079                       PL_do_undump
1080                  ));
1081 }
1082 elsif ($ARGS{PLATFORM} eq 'netware') {
1083     try_symbols(qw(
1084                         Perl_init_os_extras
1085                         Perl_thread_create
1086                         Perl_nw5_init
1087                         RunPerl
1088                         AllocStdPerl
1089                         FreeStdPerl
1090                         do_spawn2
1091                         do_aspawn
1092                         nw_uname
1093                         nw_stdin
1094                         nw_stdout
1095                         nw_stderr
1096                         nw_feof
1097                         nw_ferror
1098                         nw_fopen
1099                         nw_fclose
1100                         nw_clearerr
1101                         nw_getc
1102                         nw_fgets
1103                         nw_fputc
1104                         nw_fputs
1105                         nw_fflush
1106                         nw_ungetc
1107                         nw_fileno
1108                         nw_fdopen
1109                         nw_freopen
1110                         nw_fread
1111                         nw_fwrite
1112                         nw_setbuf
1113                         nw_setvbuf
1114                         nw_vfprintf
1115                         nw_ftell
1116                         nw_fseek
1117                         nw_rewind
1118                         nw_tmpfile
1119                         nw_fgetpos
1120                         nw_fsetpos
1121                         nw_dup
1122                         nw_access
1123                         nw_chmod
1124                         nw_chsize
1125                         nw_close
1126                         nw_dup2
1127                         nw_flock
1128                         nw_isatty
1129                         nw_link
1130                         nw_lseek
1131                         nw_stat
1132                         nw_mktemp
1133                         nw_open
1134                         nw_read
1135                         nw_rename
1136                         nw_setmode
1137                         nw_unlink
1138                         nw_utime
1139                         nw_write
1140                         nw_chdir
1141                         nw_rmdir
1142                         nw_closedir
1143                         nw_opendir
1144                         nw_readdir
1145                         nw_rewinddir
1146                         nw_seekdir
1147                         nw_telldir
1148                         nw_htonl
1149                         nw_htons
1150                         nw_ntohl
1151                         nw_ntohs
1152                         nw_accept
1153                         nw_bind
1154                         nw_connect
1155                         nw_endhostent
1156                         nw_endnetent
1157                         nw_endprotoent
1158                         nw_endservent
1159                         nw_gethostbyaddr
1160                         nw_gethostbyname
1161                         nw_gethostent
1162                         nw_gethostname
1163                         nw_getnetbyaddr
1164                         nw_getnetbyname
1165                         nw_getnetent
1166                         nw_getpeername
1167                         nw_getprotobyname
1168                         nw_getprotobynumber
1169                         nw_getprotoent
1170                         nw_getservbyname
1171                         nw_getservbyport
1172                         nw_getservent
1173                         nw_getsockname
1174                         nw_getsockopt
1175                         nw_inet_addr
1176                         nw_listen
1177                         nw_socket
1178                         nw_recv
1179                         nw_recvfrom
1180                         nw_select
1181                         nw_send
1182                         nw_sendto
1183                         nw_sethostent
1184                         nw_setnetent
1185                         nw_setprotoent
1186                         nw_setservent
1187                         nw_setsockopt
1188                         nw_inet_ntoa
1189                         nw_shutdown
1190                         nw_crypt
1191                         nw_execvp
1192                         nw_kill
1193                         nw_Popen
1194                         nw_Pclose
1195                         nw_Pipe
1196                         nw_times
1197                         nw_waitpid
1198                         nw_getpid
1199                         nw_spawnvp
1200                         nw_os_id
1201                         nw_open_osfhandle
1202                         nw_get_osfhandle
1203                         nw_abort
1204                         nw_sleep
1205                         nw_wait
1206                         nw_dynaload
1207                         nw_strerror
1208                         fnFpSetMode
1209                         fnInsertHashListAddrs
1210                         fnGetHashListAddrs
1211                         Perl_deb
1212                         Perl_sv_setsv
1213                         Perl_sv_catsv
1214                         Perl_sv_catpvn
1215                         Perl_sv_2pv
1216                         nw_freeenviron
1217                         Remove_Thread_Ctx
1218                  ));
1219 }
1220
1221 # When added this code was only run for Win32 and WinCE
1222 # Currently only Win32 links static extensions into the shared library.
1223 # The WinCE makefile doesn't appear to support static extensions, so this code
1224 # can't have any effect there.
1225 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1226 # list of dynamic extensions, and the rules to build them)
1227 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1228 # static extensions with -fPIC, but links them to perl, not libperl.so
1229 # The VMS build scripts don't yet implement static extensions at all.
1230
1231 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1232     # records of type boot_module for statically linked modules (except Dynaloader)
1233     my $static_ext = $Config{static_ext} // "";
1234     $static_ext =~ s/\//__/g;
1235     $static_ext =~ s/\bDynaLoader\b//;
1236     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1237     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1238 }
1239
1240 if ($ARGS{PLATFORM} eq 'os2') {
1241     my (%mapped, @missing);
1242     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1243     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1244     close MAP or die 'Cannot close miniperl.map';
1245
1246     @missing = grep { !exists $mapped{$_} }
1247                     keys %export;
1248     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1249     delete $export{$_} foreach @missing;
1250 }
1251
1252 ###############################################################################
1253
1254 # Now all symbols should be defined because next we are going to output them.
1255
1256 # Start with platform specific headers:
1257
1258 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1259     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1260         : "perl$Config{api_revision}$Config{api_version}";
1261     print "LIBRARY $dll\n";
1262     # The DESCRIPTION module definition file statement is not supported
1263     # by VC7 onwards.
1264     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1265         print "DESCRIPTION 'Perl interpreter'\n";
1266     }
1267     print "EXPORTS\n";
1268 }
1269 elsif ($ARGS{PLATFORM} eq 'os2') {
1270     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1271     $v .= '-thread' if $Config{archname} =~ /-thread/;
1272     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1273     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1274     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1275     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1276     print <<"---EOP---";
1277 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1278 $d
1279 STACKSIZE 32768
1280 CODE LOADONCALL
1281 DATA LOADONCALL NONSHARED MULTIPLE
1282 EXPORTS
1283 ---EOP---
1284 }
1285 elsif ($ARGS{PLATFORM} eq 'aix') {
1286     my $OSVER = `uname -v`;
1287     chop $OSVER;
1288     my $OSREL = `uname -r`;
1289     chop $OSREL;
1290     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1291         print "#! ..\n";
1292     } else {
1293         print "#!\n";
1294     }
1295 }
1296 elsif ($ARGS{PLATFORM} eq 'netware') {
1297         if ($ARGS{FILETYPE} eq 'def') {
1298         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1299         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1300         print "EXPORTS\n";
1301         }
1302 }
1303
1304 # Then the symbols
1305
1306 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1307 foreach my $symbol (@symbols) {
1308     if (PLATFORM eq 'win32' || PLATFORM eq 'wince') {
1309         # Remembering the origin file of each symbol is an alternative to PL_ matching
1310         if (substr($symbol, 0, 3) eq 'PL_') {
1311             print "\t$symbol DATA\n";
1312         }
1313         else {
1314             print "\t$symbol\n";
1315         }
1316     }
1317     elsif (PLATFORM eq 'os2') {
1318         printf qq(    %-31s \@%s\n),
1319           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1320         printf qq(    %-31s \@%s\n),
1321           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1322           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1323           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1324     }
1325     elsif (PLATFORM eq 'netware') {
1326         print "\t$symbol,\n";
1327     } else {
1328         print "$symbol\n";
1329     }
1330 }
1331
1332 # Then platform specific footers.
1333
1334 if ($ARGS{PLATFORM} eq 'os2') {
1335     print <<EOP;
1336     dll_perlmain=main
1337     fill_extLibpath
1338     dir_subst
1339     Perl_OS2_handler_install
1340
1341 ; LAST_ORDINAL=$sym_ord
1342 EOP
1343 }
1344
1345 1;