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