makedef.pl

   1 #./perl -w
   2 #
   3 # Create the export list for perl.
   4 #
   5 # Needed by WIN32 and OS/2 for creating perl.dll,
   6 # and by AIX for creating libperl.a when -Duseshrplib is in effect,
   7 # and by VMS for creating perlshr.exe.
   8 #
   9 # Reads from information stored in
  10 #
  11 #    %Config::Config (ie config.sh)
  12 #    config.h
  13 #    embed.fnc
  14 #    globvar.sym
  15 #    intrpvar.h
  16 #    miniperl.map (on OS/2)
  17 #    perl5.def    (on OS/2; this is the old version of the file being made)
  18 #    perlio.sym
  19 #    perlvars.h
  20 #    regen/opcodes
  21 #
  22 # plus long lists of function names hard-coded directly in this script.
  23 #
  24 # Writes the result to STDOUT.
  25 #
  26 # Normally this script is invoked from a makefile (e.g. win32/Makefile),
  27 # which redirects STDOUT to a suitable file, such as:
  28 #
  29 #    perl5.def   OS/2
  30 #    perldll.def Windows
  31 #    perl.exp    AIX
  32 #    makedef.lis VMS
  33
  34 use strict;
  35 use Config;
  36 use warnings;
  37
  38 my $fold;
  39 my %ARGS;
  40 my %define;
  41
  42 BEGIN {
  43     %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
  44
  45     sub process_cc_flags {
  46         foreach (map {split /\s+/, $_} @_) {
  47             $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
  48         }
  49     }
  50
  51     while (@ARGV) {
  52         my $flag = shift;
  53         if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
  54             process_cc_flags($1);
  55         } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
  56             $ARGS{$1} = $2;
  57         } elsif ($flag eq '--sort-fold') {
  58             ++$fold;
  59         }
  60     }
  61     my @PLATFORM = qw(aix win32 os2 vms test);
  62     my %PLATFORM;
  63     @PLATFORM{@PLATFORM} = ();
  64
  65     die "PLATFORM undefined, must be one of: @PLATFORM\n"
  66         unless defined $ARGS{PLATFORM};
  67     die "PLATFORM must be one of: @PLATFORM\n"
  68         unless exists $PLATFORM{$ARGS{PLATFORM}};
  69 }
  70
  71 use constant PLATFORM => $ARGS{PLATFORM};
  72
  73 # This makes us able to use, e.g., $define{WIN32}, so you don't have to
  74 # remember what things came from %ARGS.
  75 $define{uc $ARGS{'PLATFORM'}} = 1;
  76
  77 require "./$ARGS{TARG_DIR}regen/embed_lib.pl";
  78
  79 # Is the following guard strictly necessary? Added during refactoring
  80 # to keep the same behaviour when merging other code into here.
  81 process_cc_flags(@Config{qw(ccflags optimize)})
  82     if PLATFORM ne 'win32';
  83
  84 # Add the compile-time options that miniperl was built with to %define.
  85 # On Win32 these are not the same options as perl itself will be built
  86 # with since miniperl is built with a canned config (one of the win32/
  87 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
  88 # but they do include some #define's that are hard-coded in various
  89 # source files and header files and don't include any BUILDOPT's that
  90 # the user might have chosen to disable because the canned configs are
  91 # minimal configs that don't include any of those options.
  92
  93 my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
  94 print STDERR "Options: (@options)\n" unless PLATFORM eq 'test';
  95 $define{$_} = 1 foreach @options;
  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 = 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{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
 111                                            |KILL_BY_SIGPRC
 112                                            |(?:PERL|USE|HAS)_\w+)\b/x;
 113 }
 114 close(CFG);
 115
 116 #==========================================================================
 117 # perl.h logic duplication begins
 118
 119
 120 if ($define{USE_ITHREADS}) {
 121     if (!$define{MULTIPLICITY}) {
 122         $define{MULTIPLICITY} = 1;
 123     }
 124 }
 125
 126 $define{MULTIPLICITY} ||=
 127     $define{USE_ITHREADS} ||
 128     $define{PERL_IMPLICIT_CONTEXT} ;
 129
 130 if ($define{USE_ITHREADS} && ! $define{WIN32}) {
 131     $define{USE_REENTRANT_API} = 1;
 132 }
 133
 134 if (! $define{NO_LOCALE}) {
 135     if ( ! $define{NO_POSIX_2008_LOCALE}
 136         && $define{HAS_NEWLOCALE}
 137         && $define{HAS_USELOCALE}
 138         && $define{HAS_DUPLOCALE}
 139         && $define{HAS_FREELOCALE})
 140     {
 141         $define{HAS_POSIX_2008_LOCALE} = 1;
 142         $define{USE_LOCALE} = 1;
 143     }
 144     elsif ($define{HAS_SETLOCALE}) {
 145         $define{USE_LOCALE} = 1;
 146     }
 147 }
 148
 149 # https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B#Internal_version_numbering
 150 my $cctype = $ARGS{CCTYPE} =~ s/MSVC//r;
 151 if ($define{USE_ITHREADS} && ! $define{NO_LOCALE_THREADS}) {
 152     $define{USE_LOCALE_THREADS} = 1;
 153 }
 154
 155 if (   $define{HAS_POSIX_2008_LOCALE}
 156     && (  ! $define{HAS_SETLOCALE} || (     $define{USE_LOCALE_THREADS}
 157                                        && ! $define{NO_POSIX_2008_LOCALE})))
 158 {
 159     $define{USE_POSIX_2008_LOCALE} = 1;
 160 }
 161
 162 if ($define{USE_LOCALE_THREADS} && ! $define{NO_THREAD_SAFE_LOCALE})
 163 {
 164     if (    $define{USE_POSIX_2008_LOCALE}
 165         || ($define{WIN32} && (   $cctype !~ /\D/
 166                                && $cctype >= 80)))
 167     {
 168         $define{USE_THREAD_SAFE_LOCALE} = 1;
 169     }
 170 }
 171
 172 if ($define{USE_POSIX_2008_LOCALE} && $define{HAS_QUERYLOCALE})
 173 {
 174     $define{USE_QUERYLOCALE} = 1;
 175
 176     # Don't need glibc only code from perl.h
 177 }
 178
 179 if ($define{USE_POSIX_2008_LOCALE} && ! $define{USE_QUERYLOCALE})
 180 {
 181     $define{USE_PL_CURLOCALES} = 1;
 182     $define{USE_PL_CUR_LC_ALL} = 1;
 183 }
 184
 185 if ($define{WIN32} && $define{USE_THREAD_SAFE_LOCALE})
 186 {
 187     $define{USE_PL_CUR_LC_ALL} = 1;
 188
 189     if ($cctype < 140) {
 190         $define{TS_W32_BROKEN_LOCALECONV} = 1;
 191     }
 192 }
 193
 194 if ($define{MULTIPLICITY} && (   $define{USE_POSIX_2008_LOCALE}
 195                               || (   $define{WIN32}
 196                                   && $define{USE_THREAD_SAFE_LOCALE})))
 197 {
 198     $define{USE_PERL_SWITCH_LOCALE_CONTEXT} = 1;
 199 }
 200
 201 # perl.h logic duplication ends
 202 #==========================================================================
 203
 204 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
 205      unless PLATFORM eq 'test';
 206
 207 my $sym_ord = 0;
 208 my %ordinal;
 209
 210 if (PLATFORM eq 'os2') {
 211     if (open my $fh, '<', 'perl5.def') {
 212       while (<$fh>) {
 213         last if /^\s*EXPORTS\b/;
 214       }
 215       while (<$fh>) {
 216         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
 217         # This allows skipping ordinals which were used in older versions
 218         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
 219       }
 220       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
 221     }
 222 }
 223
 224 my %skip;
 225 # All platforms export boot_DynaLoader unconditionally.
 226 my %export = ( boot_DynaLoader => 1 );
 227
 228 # d_thread_local not perl_thread_local - see hints/darwin.sh
 229 ++$export{PL_current_context}
 230     if defined $Config{d_thread_local} && $define{USE_ITHREADS};
 231
 232 sub try_symbols {
 233     foreach my $symbol (@_) {
 234         ++$export{$symbol} unless exists $skip{$symbol};
 235     }
 236 }
 237
 238 sub readvar {
 239     # $hash is the hash that we're adding to. For one of our callers, it will
 240     # actually be the skip hash but that doesn't affect the intent of what
 241     # we're doing, as in that case we skip adding something to the skip hash
 242     # for the second time.
 243
 244     my $file = $ARGS{TARG_DIR} . shift;
 245     my $hash = shift;
 246     my $proc = shift;
 247     open my $vars, '<', $file or die "Cannot open $file: $!\n";
 248
 249     while (<$vars>) {
 250         # All symbols have a Perl_ prefix because that's what embed.h sticks
 251         # in front of them.  The A?I?S?C? is strictly speaking wrong.
 252         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
 253
 254         my $var = "PL_$3";
 255         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
 256         ++$hash->{$symbol} unless exists $skip{$var};
 257     }
 258 }
 259
 260 if (PLATFORM ne 'os2') {
 261     ++$skip{$_} foreach qw(
 262                      PL_opsave
 263                      Perl_dump_fds
 264                      Perl_my_bcopy
 265                      Perl_my_bzero
 266                      Perl_my_chsize
 267                      Perl_my_htonl
 268                      Perl_my_memcmp
 269                      Perl_my_memset
 270                      Perl_my_ntohl
 271                      Perl_my_swap
 272                          );
 273     if (PLATFORM eq 'vms') {
 274         ++$skip{PL_statusvalue_posix};
 275         # This is a wrapper if we have symlink, not a replacement
 276         # if we don't.
 277         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
 278     } else {
 279         ++$skip{PL_statusvalue_vms};
 280         ++$skip{PL_perllib_sep};
 281         if (PLATFORM ne 'aix') {
 282             ++$skip{$_} foreach qw(
 283                                 PL_DBcv
 284                                 PL_generation
 285                                 PL_lastgotoprobe
 286                                 PL_modcount
 287                                 main
 288                                  );
 289         }
 290     }
 291 }
 292
 293 if (PLATFORM ne 'vms') {
 294     # VMS does its own thing for these symbols.
 295     ++$skip{$_} foreach qw(
 296                         PL_sig_handlers_initted
 297                         PL_sig_ignoring
 298                         PL_sig_defaulting
 299                          );
 300     if (PLATFORM ne 'win32') {
 301         ++$skip{$_} foreach qw(
 302                             Perl_do_spawn
 303                             Perl_do_spawn_nowait
 304                             Perl_do_aspawn
 305                              );
 306     }
 307 }
 308
 309 if (PLATFORM ne 'win32') {
 310     ++$skip{$_} foreach qw(
 311                     Perl_get_win32_message_utf8ness
 312                     Perl_Win_utf8_string_to_wstring
 313                     Perl_Win_wstring_to_utf8_string
 314                          );
 315 }
 316
 317 unless ($define{UNLINK_ALL_VERSIONS}) {
 318     ++$skip{Perl_unlnk};
 319 }
 320
 321 unless ($define{'DEBUGGING'}) {
 322     ++$skip{$_} foreach qw(
 323                     Perl_debop
 324                     Perl_debprofdump
 325                     Perl_debstack
 326                     Perl_debstackptrs
 327                     Perl_pad_sv
 328                     Perl_pad_setsv
 329                     Perl_set_padlist
 330                     Perl_hv_assert
 331                     PL_watchaddr
 332                     PL_watchok
 333                          );
 334 }
 335
 336 if ($define{'PERL_IMPLICIT_SYS'}) {
 337     ++$skip{$_} foreach qw(
 338                     Perl_my_popen
 339                     Perl_my_pclose
 340                          );
 341     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
 342     ++$export{perl_clone_host} if $define{USE_ITHREADS};
 343 }
 344 else {
 345     ++$skip{$_} foreach qw(
 346                     PL_Mem
 347                     PL_MemShared
 348                     PL_MemParse
 349                     PL_Env
 350                     PL_StdIO
 351                     PL_LIO
 352                     PL_Dir
 353                     PL_Sock
 354                     PL_Proc
 355                     perl_alloc_using
 356                     perl_clone_using
 357                          );
 358 }
 359
 360 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
 361     ++$skip{Perl_sv_setsv_cow};
 362 }
 363
 364 unless ($define{PERL_SAWAMPERSAND}) {
 365     ++$skip{PL_sawampersand};
 366 }
 367
 368 unless ($define{'USE_REENTRANT_API'}) {
 369     ++$skip{PL_reentrant_buffer};
 370 }
 371
 372 if ($define{'MYMALLOC'}) {
 373     try_symbols(qw(
 374                     Perl_dump_mstats
 375                     Perl_get_mstats
 376                     Perl_strdup
 377                     Perl_putenv
 378                     MallocCfg_ptr
 379                     MallocCfgP_ptr
 380                     ));
 381     unless ($define{USE_ITHREADS}) {
 382         ++$skip{PL_malloc_mutex}
 383     }
 384 }
 385 else {
 386     ++$skip{$_} foreach qw(
 387                     PL_malloc_mutex
 388                     Perl_dump_mstats
 389                     Perl_get_mstats
 390                     MallocCfg_ptr
 391                     MallocCfgP_ptr
 392                          );
 393 }
 394
 395 unless ($define{'USE_ITHREADS'}) {
 396     ++$skip{PL_thr_key};
 397     ++$skip{PL_user_prop_mutex};
 398     ++$skip{PL_user_def_props_aTHX};
 399 }
 400
 401 unless ($define{'USE_ITHREADS'}) {
 402     ++$skip{$_} foreach qw(
 403                     PL_keyword_plugin_mutex
 404                     PL_check_mutex
 405                     PL_cur_locale_obj
 406                     PL_op_mutex
 407                     PL_regex_pad
 408                     PL_regex_padav
 409                     PL_dollarzero_mutex
 410                     PL_env_mutex
 411                     PL_hints_mutex
 412                     PL_locale_mutex
 413                     PL_locale_mutex_depth
 414                     PL_my_ctx_mutex
 415                     PL_perlio_mutex
 416                     PL_stashpad
 417                     PL_stashpadix
 418                     PL_stashpadmax
 419                     PL_veto_switch_non_tTHX_context
 420                     Perl_alloccopstash
 421                     Perl_allocfilegv
 422                     Perl_clone_params_del
 423                     Perl_clone_params_new
 424                     Perl_parser_dup
 425                     Perl_dirp_dup
 426                     Perl_cx_dup
 427                     Perl_si_dup
 428                     Perl_any_dup
 429                     Perl_ss_dup
 430                     Perl_fp_dup
 431                     Perl_gp_dup
 432                     Perl_he_dup
 433                     Perl_mg_dup
 434                     Perl_re_dup_guts
 435                     Perl_sv_dup
 436                     Perl_sv_dup_inc
 437                     Perl_rvpv_dup
 438                     Perl_hek_dup
 439                     Perl_sys_intern_dup
 440                     perl_clone
 441                     perl_clone_using
 442                     Perl_stashpv_hvname_match
 443                     Perl_regdupe_internal
 444                     Perl_newPADOP
 445                          );
 446 }
 447
 448 unless ($define{USE_POSIX_2008_LOCALE})
 449 {
 450     ++$skip{$_} foreach qw(
 451         PL_C_locale_obj
 452         PL_scratch_locale_obj
 453         PL_underlying_numeric_obj
 454     );
 455 }
 456 unless ($define{USE_PL_CURLOCALES})
 457 {
 458     ++$skip{$_} foreach qw(
 459         PL_curlocales
 460     );
 461 }
 462
 463 unless ($define{USE_PL_CUR_LC_ALL})
 464 {
 465     ++$skip{$_} foreach qw(
 466         PL_cur_LC_ALL
 467     );
 468 }
 469
 470 unless ($define{USE_PERL_SWITCH_LOCALE_CONTEXT})
 471 {
 472     ++$skip{$_} foreach qw(
 473         Perl_switch_locale_context
 474     );
 475 }
 476
 477 unless ($define{'MULTIPLICITY'}) {
 478     ++$skip{$_} foreach qw(
 479                     PL_my_cxt_index
 480                     PL_my_cxt_list
 481                     PL_my_cxt_size
 482                     PL_my_cxt_keys
 483                     PL_my_cxt_keys_size
 484                     Perl_croak_nocontext
 485                     Perl_die_nocontext
 486                     Perl_deb_nocontext
 487                     Perl_form_nocontext
 488                     Perl_load_module_nocontext
 489                     Perl_mess_nocontext
 490                     Perl_warn_nocontext
 491                     Perl_warner_nocontext
 492                     Perl_newSVpvf_nocontext
 493                     Perl_sv_catpvf_nocontext
 494                     Perl_sv_setpvf_nocontext
 495                     Perl_sv_catpvf_mg_nocontext
 496                     Perl_sv_setpvf_mg_nocontext
 497                     Perl_my_cxt_init
 498                     Perl_my_cxt_index
 499                          );
 500 }
 501
 502 unless ($define{'USE_DTRACE'}) {
 503     ++$skip{$_} foreach qw(
 504                     Perl_dtrace_probe_call
 505                     Perl_dtrace_probe_load
 506                     Perl_dtrace_probe_op
 507                     Perl_dtrace_probe_phase
 508                 );
 509 }
 510
 511 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
 512     ++$skip{PL_sv_serial};
 513 }
 514
 515 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
 516     ++$skip{PL_dumper_fd};
 517 }
 518
 519 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
 520     ++$skip{Perl_gv_SVadd};
 521 }
 522
 523 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
 524     ++$skip{PL_pidstatus};
 525 }
 526
 527 unless ($define{'PERL_TRACK_MEMPOOL'}) {
 528     ++$skip{PL_memory_debug_header};
 529 }
 530
 531 unless ($define{'PERL_MEM_LOG'}) {
 532     ++$skip{$_} foreach qw(
 533                     PL_mem_log
 534                     Perl_mem_log_alloc
 535                     Perl_mem_log_realloc
 536                     Perl_mem_log_free
 537                     Perl_mem_log_new_sv
 538                     Perl_mem_log_del_sv
 539                 );
 540 }
 541
 542 unless ($define{'MULTIPLICITY'}) {
 543     ++$skip{$_} foreach qw(
 544                     PL_interp_size
 545                     PL_interp_size_5_18_0
 546                     PL_sv_yes
 547                     PL_sv_undef
 548                     PL_sv_no
 549                     PL_sv_zero
 550                          );
 551 }
 552
 553 unless ($define{HAS_MMAP}) {
 554     ++$skip{PL_mmap_page_size};
 555 }
 556
 557 if ($define{HAS_SIGACTION}) {
 558     ++$skip{PL_sig_trapped};
 559
 560     if (PLATFORM eq 'vms') {
 561         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
 562         ++$skip{PL_sig_ignoring};
 563         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
 564     }
 565 }
 566
 567 if (PLATFORM eq 'vms' && !$define{KILL_BY_SIGPRC}) {
 568     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
 569     ++$skip{Perl_csighandler_init};
 570     ++$skip{Perl_my_kill};
 571     ++$skip{Perl_sig_to_vmscondition};
 572     ++$skip{PL_sig_defaulting};
 573     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
 574 }
 575
 576 if ($define{'HAS_STRNLEN'})
 577 {
 578     ++$skip{Perl_my_strnlen};
 579 }
 580
 581 unless ($define{USE_LOCALE_COLLATE}) {
 582     ++$skip{$_} foreach qw(
 583                     PL_collation_ix
 584                     PL_collation_name
 585                     PL_collation_standard
 586                     PL_collxfrm_base
 587                     PL_collxfrm_mult
 588                     Perl_sv_collxfrm
 589                     Perl_sv_collxfrm_flags
 590                     PL_strxfrm_NUL_replacement
 591                     PL_strxfrm_is_behaved
 592                     PL_strxfrm_max_cp
 593                     PL_in_utf8_COLLATE_locale
 594                          );
 595 }
 596
 597 unless ($define{USE_LOCALE_NUMERIC}) {
 598     ++$skip{$_} foreach qw(
 599                     PL_underlying_numeric_obj
 600                          );
 601 }
 602
 603 unless ($define{USE_LOCALE_CTYPE}) {
 604     ++$skip{$_} foreach qw(
 605                     PL_ctype_name
 606                     PL_in_utf8_CTYPE_locale
 607                     PL_in_utf8_turkic_locale
 608                          );
 609 }
 610
 611 unless ($define{'USE_C_BACKTRACE'}) {
 612     ++$skip{Perl_get_c_backtrace_dump};
 613     ++$skip{Perl_dump_c_backtrace};
 614 }
 615
 616 unless ($define{HAVE_INTERP_INTERN}) {
 617     ++$skip{$_} foreach qw(
 618                     Perl_sys_intern_clear
 619                     Perl_sys_intern_dup
 620                     Perl_sys_intern_init
 621                     PL_sys_intern
 622                          );
 623 }
 624
 625 if ($define{HAS_SIGNBIT}) {
 626     ++$skip{Perl_signbit};
 627 }
 628
 629 ++$skip{PL_op_exec_cnt}
 630     unless $define{PERL_TRACE_OPS};
 631
 632 ++$skip{PL_hash_chars}
 633     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
 634
 635 # functions from *.sym files
 636
 637 my @syms = qw(globvar.sym);
 638
 639 # Symbols that are the public face of the PerlIO layers implementation
 640 # These are in _addition to_ the public face of the abstraction
 641 # and need to be exported to allow XS modules to implement layers
 642 my @layer_syms = qw(
 643                     PerlIOBase_binmode
 644                     PerlIOBase_clearerr
 645                     PerlIOBase_close
 646                     PerlIOBase_dup
 647                     PerlIOBase_eof
 648                     PerlIOBase_error
 649                     PerlIOBase_fileno
 650                     PerlIOBase_open
 651                     PerlIOBase_noop_fail
 652                     PerlIOBase_noop_ok
 653                     PerlIOBase_popped
 654                     PerlIOBase_pushed
 655                     PerlIOBase_read
 656                     PerlIOBase_setlinebuf
 657                     PerlIOBase_unread
 658                     PerlIOBuf_bufsiz
 659                     PerlIOBuf_close
 660                     PerlIOBuf_dup
 661                     PerlIOBuf_fill
 662                     PerlIOBuf_flush
 663                     PerlIOBuf_get_base
 664                     PerlIOBuf_get_cnt
 665                     PerlIOBuf_get_ptr
 666                     PerlIOBuf_open
 667                     PerlIOBuf_popped
 668                     PerlIOBuf_pushed
 669                     PerlIOBuf_read
 670                     PerlIOBuf_seek
 671                     PerlIOBuf_set_ptrcnt
 672                     PerlIOBuf_tell
 673                     PerlIOBuf_unread
 674                     PerlIOBuf_write
 675                     PerlIO_allocate
 676                     PerlIO_apply_layera
 677                     PerlIO_apply_layers
 678                     PerlIO_arg_fetch
 679                     PerlIO_debug
 680                     PerlIO_define_layer
 681                     PerlIO_find_layer
 682                     PerlIO_isutf8
 683                     PerlIO_layer_fetch
 684                     PerlIO_list_alloc
 685                     PerlIO_list_free
 686                     PerlIO_modestr
 687                     PerlIO_parse_layers
 688                     PerlIO_pending
 689                     PerlIO_perlio
 690                     PerlIO_pop
 691                     PerlIO_push
 692                     PerlIO_sv_dup
 693                     Perl_PerlIO_clearerr
 694                     Perl_PerlIO_close
 695                     Perl_PerlIO_context_layers
 696                     Perl_PerlIO_eof
 697                     Perl_PerlIO_error
 698                     Perl_PerlIO_fileno
 699                     Perl_PerlIO_fill
 700                     Perl_PerlIO_flush
 701                     Perl_PerlIO_get_base
 702                     Perl_PerlIO_get_bufsiz
 703                     Perl_PerlIO_get_cnt
 704                     Perl_PerlIO_get_ptr
 705                     Perl_PerlIO_read
 706                     Perl_PerlIO_restore_errno
 707                     Perl_PerlIO_save_errno
 708                     Perl_PerlIO_seek
 709                     Perl_PerlIO_set_cnt
 710                     Perl_PerlIO_set_ptrcnt
 711                     Perl_PerlIO_setlinebuf
 712                     Perl_PerlIO_stderr
 713                     Perl_PerlIO_stdin
 714                     Perl_PerlIO_stdout
 715                     Perl_PerlIO_tell
 716                     Perl_PerlIO_unread
 717                     Perl_PerlIO_write
 718 );
 719
 720 # Export the symbols that make up the PerlIO abstraction, regardless
 721 # of its implementation - read from a file
 722 push @syms, 'perlio.sym';
 723
 724 # PerlIO with layers - export implementation
 725 try_symbols(@layer_syms, 'perlsio_binmode');
 726
 727
 728 unless ($define{'USE_QUADMATH'}) {
 729   ++$skip{Perl_quadmath_format_needed};
 730   ++$skip{Perl_quadmath_format_single};
 731 }
 732
 733 unless ($Config{d_mbrlen}) {
 734     ++$skip{PL_mbrlen_ps};
 735 }
 736
 737 unless ($Config{d_mbrtowc}) {
 738     ++$skip{PL_mbrtowc_ps};
 739 }
 740
 741 unless ($Config{d_wcrtomb}) {
 742     ++$skip{PL_wcrtomb_ps};
 743 }
 744
 745 ###############################################################################
 746
 747 # At this point all skip lists should be completed, as we are about to test
 748 # many symbols against them.
 749
 750 {
 751     my %seen;
 752     my ($embed_array) = setup_embed($ARGS{TARG_DIR});
 753     my $excludedre = $define{'NO_MATHOMS'} ? qr/[emiIsb]/ : qr/[emiIs]/;
 754
 755     foreach (@$embed_array) {
 756         my $embed= $_->{embed}
 757             or next;
 758         my ($flags, $retval, $func, $args) = @{$embed}{qw(flags return_type name args)};
 759         next unless $func;
 760         if (($flags =~ /[AXC]/ && $flags !~ $excludedre)
 761             || (!$define{'NO_MATHOMS'} && $flags =~ /b/))
 762         {
 763             # public API, so export
 764
 765             # If a function is defined twice, for example before and after
 766             # an #else, only export its name once. Important to do this test
 767             # within the block, as the *first* definition may have flags which
 768             # mean "don't export"
 769             next if $seen{$func}++;
 770             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
 771             $func = "Perl_$func" if ($flags =~ /[psX]/ && $func !~ /^Perl_/);
 772             ++$export{$func} unless exists $skip{$func};
 773         }
 774     }
 775 }
 776
 777 foreach (@syms) {
 778     my $syms = $ARGS{TARG_DIR} . $_;
 779     open my $global, '<', $syms or die "failed to open $syms: $!\n";
 780     while (<$global>) {
 781         next unless /^([A-Za-z].*)/;
 782         my $symbol = "$1";
 783         ++$export{$symbol} unless exists $skip{$symbol};
 784     }
 785 }
 786
 787 # variables
 788
 789 readvar('perlvars.h', \%export);
 790 unless ($define{MULTIPLICITY}) {
 791     readvar('intrpvar.h', \%export);
 792 }
 793
 794 # Oddities from PerlIO
 795 # All have alternate implementations in perlio.c, so always exist.
 796 # Should they be considered to be part of the API?
 797 try_symbols(qw(
 798                     PerlIO_binmode
 799                     PerlIO_getpos
 800                     PerlIO_init
 801                     PerlIO_setpos
 802                     PerlIO_tmpfile
 803              ));
 804
 805 if (PLATFORM eq 'win32') {
 806     try_symbols(qw(
 807                     win32_free_childdir
 808                     win32_free_childenv
 809                     win32_get_childdir
 810                     win32_get_childenv
 811                     win32_spawnvp
 812                     Perl_init_os_extras
 813                     Perl_win32_init
 814                     Perl_win32_term
 815                     RunPerl
 816                     win32_async_check
 817                     win32_errno
 818                     win32_environ
 819                     win32_abort
 820                     win32_fstat
 821                     win32_stat
 822                     win32_pipe
 823                     win32_popen
 824                     win32_pclose
 825                     win32_rename
 826                     win32_setmode
 827                     win32_chsize
 828                     win32_lseek
 829                     win32_tell
 830                     win32_dup
 831                     win32_dup2
 832                     win32_open
 833                     win32_close
 834                     win32_eof
 835                     win32_isatty
 836                     win32_read
 837                     win32_write
 838                     win32_mkdir
 839                     win32_rmdir
 840                     win32_chdir
 841                     win32_flock
 842                     win32_execv
 843                     win32_execvp
 844                     win32_htons
 845                     win32_ntohs
 846                     win32_htonl
 847                     win32_ntohl
 848                     win32_inet_addr
 849                     win32_inet_ntoa
 850                     win32_socket
 851                     win32_bind
 852                     win32_listen
 853                     win32_accept
 854                     win32_connect
 855                     win32_send
 856                     win32_sendto
 857                     win32_recv
 858                     win32_recvfrom
 859                     win32_shutdown
 860                     win32_closesocket
 861                     win32_ioctlsocket
 862                     win32_setsockopt
 863                     win32_getsockopt
 864                     win32_getpeername
 865                     win32_getsockname
 866                     win32_gethostname
 867                     win32_gethostbyname
 868                     win32_gethostbyaddr
 869                     win32_getprotobyname
 870                     win32_getprotobynumber
 871                     win32_getservbyname
 872                     win32_getservbyport
 873                     win32_select
 874                     win32_endhostent
 875                     win32_endnetent
 876                     win32_endprotoent
 877                     win32_endservent
 878                     win32_getnetent
 879                     win32_getnetbyname
 880                     win32_getnetbyaddr
 881                     win32_getprotoent
 882                     win32_getservent
 883                     win32_sethostent
 884                     win32_setnetent
 885                     win32_setprotoent
 886                     win32_setservent
 887                     win32_getenv
 888                     win32_putenv
 889                     win32_perror
 890                     win32_malloc
 891                     win32_calloc
 892                     win32_realloc
 893                     win32_free
 894                     win32_sleep
 895                     win32_pause
 896                     win32_times
 897                     win32_access
 898                     win32_alarm
 899                     win32_chmod
 900                     win32_open_osfhandle
 901                     win32_get_osfhandle
 902                     win32_ioctl
 903                     win32_link
 904                     win32_unlink
 905                     win32_utime
 906                     win32_gettimeofday
 907                     win32_uname
 908                     win32_wait
 909                     win32_waitpid
 910                     win32_kill
 911                     win32_str_os_error
 912                     win32_opendir
 913                     win32_readdir
 914                     win32_telldir
 915                     win32_seekdir
 916                     win32_rewinddir
 917                     win32_closedir
 918                     win32_longpath
 919                     win32_ansipath
 920                     win32_os_id
 921                     win32_getpid
 922                     win32_crypt
 923                     win32_dynaload
 924                     win32_clearenv
 925                     win32_stdin
 926                     win32_stdout
 927                     win32_stderr
 928                     win32_ferror
 929                     win32_feof
 930                     win32_strerror
 931                     win32_fprintf
 932                     win32_printf
 933                     win32_vfprintf
 934                     win32_vprintf
 935                     win32_fread
 936                     win32_fwrite
 937                     win32_fopen
 938                     win32_fdopen
 939                     win32_freopen
 940                     win32_fclose
 941                     win32_fputs
 942                     win32_fputc
 943                     win32_ungetc
 944                     win32_getc
 945                     win32_fileno
 946                     win32_clearerr
 947                     win32_fflush
 948                     win32_ftell
 949                     win32_fseek
 950                     win32_fgetpos
 951                     win32_fsetpos
 952                     win32_rewind
 953                     win32_tmpfile
 954                     win32_setbuf
 955                     win32_setvbuf
 956                     win32_flushall
 957                     win32_fcloseall
 958                     win32_fgets
 959                     win32_gets
 960                     win32_fgetc
 961                     win32_putc
 962                     win32_puts
 963                     win32_getchar
 964                     win32_putchar
 965                     win32_symlink
 966                     win32_lstat
 967                     win32_readlink
 968                  ));
 969 }
 970 elsif (PLATFORM eq 'vms') {
 971     try_symbols(qw(
 972                       Perl_cando
 973                       Perl_cando_by_name
 974                       Perl_closedir
 975                       Perl_csighandler_init
 976                       Perl_do_rmdir
 977                       Perl_fileify_dirspec
 978                       Perl_fileify_dirspec_ts
 979                       Perl_fileify_dirspec_utf8
 980                       Perl_fileify_dirspec_utf8_ts
 981                       Perl_flex_fstat
 982                       Perl_flex_lstat
 983                       Perl_flex_stat
 984                       Perl_kill_file
 985                       Perl_my_chdir
 986                       Perl_my_chmod
 987                       Perl_my_crypt
 988                       Perl_my_endpwent
 989                       Perl_my_fclose
 990                       Perl_my_fdopen
 991                       Perl_my_fgetname
 992                       Perl_my_flush
 993                       Perl_my_fwrite
 994                       Perl_my_gconvert
 995                       Perl_my_getenv
 996                       Perl_my_getenv_len
 997                       Perl_my_getpwnam
 998                       Perl_my_getpwuid
 999                       Perl_my_gmtime
1000                       Perl_my_kill
1001                       Perl_my_killpg
1002                       Perl_my_localtime
1003                       Perl_my_mkdir
1004                       Perl_my_sigaction
1005                       Perl_my_symlink
1006                       Perl_my_time
1007                       Perl_my_tmpfile
1008                       Perl_my_trnlnm
1009                       Perl_my_utime
1010                       Perl_my_waitpid
1011                       Perl_opendir
1012                       Perl_pathify_dirspec
1013                       Perl_pathify_dirspec_ts
1014                       Perl_pathify_dirspec_utf8
1015                       Perl_pathify_dirspec_utf8_ts
1016                       Perl_readdir
1017                       Perl_readdir_r
1018                       Perl_rename
1019                       Perl_rmscopy
1020                       Perl_rmsexpand
1021                       Perl_rmsexpand_ts
1022                       Perl_rmsexpand_utf8
1023                       Perl_rmsexpand_utf8_ts
1024                       Perl_seekdir
1025                       Perl_sig_to_vmscondition
1026                       Perl_telldir
1027                       Perl_tounixpath
1028                       Perl_tounixpath_ts
1029                       Perl_tounixpath_utf8
1030                       Perl_tounixpath_utf8_ts
1031                       Perl_tounixspec
1032                       Perl_tounixspec_ts
1033                       Perl_tounixspec_utf8
1034                       Perl_tounixspec_utf8_ts
1035                       Perl_tovmspath
1036                       Perl_tovmspath_ts
1037                       Perl_tovmspath_utf8
1038                       Perl_tovmspath_utf8_ts
1039                       Perl_tovmsspec
1040                       Perl_tovmsspec_ts
1041                       Perl_tovmsspec_utf8
1042                       Perl_tovmsspec_utf8_ts
1043                       Perl_trim_unixpath
1044                       Perl_vms_case_tolerant
1045                       Perl_vms_do_aexec
1046                       Perl_vms_do_exec
1047                       Perl_vms_image_init
1048                       Perl_vms_realpath
1049                       Perl_vmssetenv
1050                       Perl_vmssetuserlnm
1051                       Perl_vmstrnenv
1052                       PerlIO_openn
1053                  ));
1054 }
1055 elsif (PLATFORM eq 'os2') {
1056     try_symbols(qw(
1057                       ctermid
1058                       get_sysinfo
1059                       Perl_OS2_init
1060                       Perl_OS2_init3
1061                       Perl_OS2_term
1062                       OS2_Perl_data
1063                       dlopen
1064                       dlsym
1065                       dlerror
1066                       dlclose
1067                       dup2
1068                       dup
1069                       my_tmpfile
1070                       my_tmpnam
1071                       my_flock
1072                       my_rmdir
1073                       my_mkdir
1074                       my_getpwuid
1075                       my_getpwnam
1076                       my_getpwent
1077                       my_setpwent
1078                       my_endpwent
1079                       fork_with_resources
1080                       croak_with_os2error
1081                       setgrent
1082                       endgrent
1083                       getgrent
1084                       malloc_mutex
1085                       threads_mutex
1086                       nthreads
1087                       nthreads_cond
1088                       os2_cond_wait
1089                       os2_stat
1090                       os2_execname
1091                       async_mssleep
1092                       msCounter
1093                       InfoTable
1094                       pthread_join
1095                       pthread_create
1096                       pthread_detach
1097                       XS_Cwd_change_drive
1098                       XS_Cwd_current_drive
1099                       XS_Cwd_extLibpath
1100                       XS_Cwd_extLibpath_set
1101                       XS_Cwd_sys_abspath
1102                       XS_Cwd_sys_chdir
1103                       XS_Cwd_sys_cwd
1104                       XS_Cwd_sys_is_absolute
1105                       XS_Cwd_sys_is_relative
1106                       XS_Cwd_sys_is_rooted
1107                       XS_DynaLoader_mod2fname
1108                       XS_File__Copy_syscopy
1109                       Perl_Register_MQ
1110                       Perl_Deregister_MQ
1111                       Perl_Serve_Messages
1112                       Perl_Process_Messages
1113                       init_PMWIN_entries
1114                       PMWIN_entries
1115                       Perl_hab_GET
1116                       loadByOrdinal
1117                       pExtFCN
1118                       os2error
1119                       ResetWinError
1120                       CroakWinError
1121                       PL_do_undump
1122                  ));
1123 }
1124
1125 # When added this code was only run for Win32 (and WinCE at the time)
1126 # Currently only Win32 links static extensions into the shared library.
1127 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1128 # static extensions with -fPIC, but links them to perl, not libperl.so
1129 # The VMS build scripts don't yet implement static extensions at all.
1130
1131 if (PLATFORM eq 'win32') {
1132     # records of type boot_module for statically linked modules (except Dynaloader)
1133     my $static_ext = $Config{static_ext} // "";
1134     $static_ext =~ s/\//__/g;
1135     $static_ext =~ s/\bDynaLoader\b//;
1136     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1137     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1138 }
1139
1140 if (PLATFORM eq 'os2') {
1141     my (%mapped, @missing);
1142     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1143     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1144     close MAP or die 'Cannot close miniperl.map';
1145
1146     @missing = grep { !exists $mapped{$_} }
1147                     keys %export;
1148     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1149     delete $export{$_} foreach @missing;
1150 }
1151
1152 ###############################################################################
1153
1154 # Now all symbols should be defined because next we are going to output them.
1155
1156 # Start with platform specific headers:
1157
1158 if (PLATFORM eq 'win32') {
1159     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1160         : "perl$Config{api_revision}$Config{api_version}";
1161     print "LIBRARY $dll\n";
1162     # The DESCRIPTION module definition file statement is not supported
1163     # by VC7 onwards.
1164     if ($ARGS{CCTYPE} eq 'GCC') {
1165         print "DESCRIPTION 'Perl interpreter'\n";
1166     }
1167     print "EXPORTS\n";
1168 }
1169 elsif (PLATFORM eq 'os2') {
1170     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1171     $v .= '-thread' if $Config{archname} =~ /-thread/;
1172     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1173     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1174     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1175     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1176     print <<"---EOP---";
1177 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1178 $d
1179 STACKSIZE 32768
1180 CODE LOADONCALL
1181 DATA LOADONCALL NONSHARED MULTIPLE
1182 EXPORTS
1183 ---EOP---
1184 }
1185 elsif (PLATFORM eq 'aix') {
1186     my $OSVER = `uname -v`;
1187     chop $OSVER;
1188     my $OSREL = `uname -r`;
1189     chop $OSREL;
1190     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1191         print "#! ..\n";
1192     } else {
1193         print "#!\n";
1194     }
1195 }
1196
1197 # Then the symbols
1198
1199 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1200 foreach my $symbol (@symbols) {
1201     if (PLATFORM eq 'win32') {
1202         # Remembering the origin file of each symbol is an alternative to PL_ matching
1203         if (substr($symbol, 0, 3) eq 'PL_') {
1204             print "\t$symbol DATA\n";
1205         }
1206         else {
1207             print "\t$symbol\n";
1208         }
1209     }
1210     elsif (PLATFORM eq 'os2') {
1211         printf qq(    %-31s \@%s\n),
1212           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1213         printf qq(    %-31s \@%s\n),
1214           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1215           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1216           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1217     } else {
1218         print "$symbol\n";
1219     }
1220 }
1221
1222 # Then platform specific footers.
1223
1224 if (PLATFORM eq 'os2') {
1225     print <<EOP;
1226     dll_perlmain=main
1227     fill_extLibpath
1228     dir_subst
1229     Perl_OS2_handler_install
1230
1231 ; LAST_ORDINAL=$sym_ord
1232 EOP
1233 }
1234
1235 1;