Change /(?[...]) to have normal operator precedence
[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 my $fold;
36 my %ARGS;
37 my %define;
38
39 BEGIN {
40     BEGIN { unshift @INC, "lib" }
41     use Config;
42     use strict;
43
44     %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
45
46     sub process_cc_flags {
47         foreach (map {split /\s+/, $_} @_) {
48             $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
49         }
50     }
51
52     while (@ARGV) {
53         my $flag = shift;
54         if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
55             process_cc_flags($1);
56         } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
57             $ARGS{$1} = $2;
58         } elsif ($flag eq '--sort-fold') {
59             ++$fold;
60         }
61     }
62     my @PLATFORM = qw(aix win32 wince os2 netware vms test);
63     my %PLATFORM;
64     @PLATFORM{@PLATFORM} = ();
65
66     die "PLATFORM undefined, must be one of: @PLATFORM\n"
67         unless defined $ARGS{PLATFORM};
68     die "PLATFORM must be one of: @PLATFORM\n"
69         unless exists $PLATFORM{$ARGS{PLATFORM}};
70 }
71 use constant PLATFORM => $ARGS{PLATFORM};
72
73 require "$ARGS{TARG_DIR}regen/embed_lib.pl";
74
75 # Is the following guard strictly necessary? Added during refactoring
76 # to keep the same behaviour when merging other code into here.
77 process_cc_flags(@Config{qw(ccflags optimize)})
78     if $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'wince'
79     && $ARGS{PLATFORM} ne 'netware';
80
81 # Add the compile-time options that miniperl was built with to %define.
82 # On Win32 these are not the same options as perl itself will be built
83 # with since miniperl is built with a canned config (one of the win32/
84 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
85 # but they do include some #define's that are hard-coded in various
86 # source files and header files and don't include any BUILDOPT's that
87 # the user might have chosen to disable because the canned configs are
88 # minimal configs that don't include any of those options.
89
90 #don't use the host Perl's -V defines for the WinCE Perl
91 if($ARGS{PLATFORM} ne 'wince') {
92     my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
93     print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
94     $define{$_} = 1 foreach @options;
95 }
96
97 my %exportperlmalloc =
98     (
99        Perl_malloc              =>      "malloc",
100        Perl_mfree               =>      "free",
101        Perl_realloc             =>      "realloc",
102        Perl_calloc              =>      "calloc",
103     );
104
105 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
106
107 my $config_h = 'config.h';
108 open(CFG, '<', $config_h) || die "Cannot open $config_h: $!\n";
109 while (<CFG>) {
110     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
111                                            |SPRINTF_RETURNS_STRLEN
112                                            |KILL_BY_SIGPRC
113                                            |(?:PERL|USE|HAS)_\w+)\b/x;
114 }
115 close(CFG);
116
117 # perl.h logic duplication begins
118
119 if ($define{USE_ITHREADS}) {
120     if (!$define{MULTIPLICITY}) {
121         $define{MULTIPLICITY} = 1;
122     }
123 }
124
125 $define{PERL_IMPLICIT_CONTEXT} ||=
126     $define{USE_ITHREADS} ||
127     $define{MULTIPLICITY} ;
128
129 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
130     $define{USE_REENTRANT_API} = 1;
131 }
132
133 # perl.h logic duplication ends
134
135 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
136      unless $ARGS{PLATFORM} eq 'test';
137
138 my $sym_ord = 0;
139 my %ordinal;
140
141 if ($ARGS{PLATFORM} eq 'os2') {
142     if (open my $fh, '<', 'perl5.def') {
143       while (<$fh>) {
144         last if /^\s*EXPORTS\b/;
145       }
146       while (<$fh>) {
147         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
148         # This allows skipping ordinals which were used in older versions
149         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
150       }
151       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
152     }
153 }
154
155 my %skip;
156 # All platforms export boot_DynaLoader unconditionally.
157 my %export = ( boot_DynaLoader => 1 );
158
159 sub try_symbols {
160     foreach my $symbol (@_) {
161         ++$export{$symbol} unless exists $skip{$symbol};
162     }
163 }
164
165 sub readvar {
166     # $hash is the hash that we're adding to. For one of our callers, it will
167     # actually be the skip hash but that doesn't affect the intent of what
168     # we're doing, as in that case we skip adding something to the skip hash
169     # for the second time.
170
171     my $file = $ARGS{TARG_DIR} . shift;
172     my $hash = shift;
173     my $proc = shift;
174     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
175
176     while (<$vars>) {
177         # All symbols have a Perl_ prefix because that's what embed.h sticks
178         # in front of them.  The A?I?S?C? is strictly speaking wrong.
179         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
180
181         my $var = "PL_$3";
182         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
183         ++$hash->{$symbol} unless exists $skip{$var};
184     }
185 }
186
187 if ($ARGS{PLATFORM} ne 'os2') {
188     ++$skip{$_} foreach qw(
189                      PL_cryptseen
190                      PL_opsave
191                      Perl_GetVars
192                      Perl_dump_fds
193                      Perl_my_bcopy
194                      Perl_my_bzero
195                      Perl_my_chsize
196                      Perl_my_htonl
197                      Perl_my_memcmp
198                      Perl_my_memset
199                      Perl_my_ntohl
200                      Perl_my_swap
201                          );
202     if ($ARGS{PLATFORM} eq 'vms') {
203         ++$skip{PL_statusvalue_posix};
204         # This is a wrapper if we have symlink, not a replacement
205         # if we don't.
206         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
207     } else {
208         ++$skip{PL_statusvalue_vms};
209         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{$_} foreach qw(
231                             Perl_do_spawn
232                             Perl_do_spawn_nowait
233                             Perl_do_aspawn
234                              );
235     }
236 }
237
238 if ($ARGS{PLATFORM} ne 'win32') {
239     ++$skip{$_} foreach qw(
240                     Perl_my_setlocale
241                          );
242 }
243
244 unless ($define{UNLINK_ALL_VERSIONS}) {
245     ++$skip{Perl_unlnk};
246 }
247
248 unless ($define{'DEBUGGING'}) {
249     ++$skip{$_} foreach qw(
250                     Perl_debop
251                     Perl_debprofdump
252                     Perl_debstack
253                     Perl_debstackptrs
254                     Perl_pad_sv
255                     Perl_pad_setsv
256                     Perl_set_padlist
257                     Perl_hv_assert
258                     PL_watchaddr
259                     PL_watchok
260                     PL_watch_pvx
261                          );
262 }
263
264 if ($define{'PERL_IMPLICIT_SYS'}) {
265     ++$skip{$_} foreach qw(
266                     Perl_my_popen
267                     Perl_my_pclose
268                          );
269     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
270     ++$export{perl_clone_host} if $define{USE_ITHREADS};
271 }
272 else {
273     ++$skip{$_} foreach qw(
274                     PL_Mem
275                     PL_MemShared
276                     PL_MemParse
277                     PL_Env
278                     PL_StdIO
279                     PL_LIO
280                     PL_Dir
281                     PL_Sock
282                     PL_Proc
283                     perl_alloc_using
284                     perl_clone_using
285                          );
286 }
287
288 unless ($define{'PERL_OLD_COPY_ON_WRITE'}
289      || $define{'PERL_NEW_COPY_ON_WRITE'}) {
290     ++$skip{Perl_sv_setsv_cow};
291 }
292
293 unless ($define{PERL_SAWAMPERSAND}) {
294     ++$skip{PL_sawampersand};
295 }
296
297 unless ($define{'USE_REENTRANT_API'}) {
298     ++$skip{PL_reentrant_buffer};
299 }
300
301 if ($define{'MYMALLOC'}) {
302     try_symbols(qw(
303                     Perl_dump_mstats
304                     Perl_get_mstats
305                     Perl_strdup
306                     Perl_putenv
307                     MallocCfg_ptr
308                     MallocCfgP_ptr
309                     ));
310     unless ($define{USE_ITHREADS}) {
311         ++$skip{PL_malloc_mutex}
312     }
313 }
314 else {
315     ++$skip{$_} foreach qw(
316                     PL_malloc_mutex
317                     Perl_dump_mstats
318                     Perl_get_mstats
319                     MallocCfg_ptr
320                     MallocCfgP_ptr
321                          );
322 }
323
324 if ($define{'PERL_USE_SAFE_PUTENV'}) {
325     ++$skip{PL_use_safe_putenv};
326 }
327
328 unless ($define{'USE_ITHREADS'}) {
329     ++$skip{PL_thr_key};
330 }
331
332 # USE_5005THREADS symbols. Kept as reference for easier removal
333 ++$skip{$_} foreach qw(
334                     PL_sv_mutex
335                     PL_strtab_mutex
336                     PL_svref_mutex
337                     PL_cred_mutex
338                     PL_eval_mutex
339                     PL_fdpid_mutex
340                     PL_sv_lock_mutex
341                     PL_eval_cond
342                     PL_eval_owner
343                     PL_threads_mutex
344                     PL_nthreads
345                     PL_nthreads_cond
346                     PL_threadnum
347                     PL_threadsv_names
348                     PL_thrsv
349                     PL_vtbl_mutex
350                     Perl_condpair_magic
351                     Perl_new_struct_thread
352                     Perl_per_thread_magicals
353                     Perl_thread_create
354                     Perl_find_threadsv
355                     Perl_unlock_condpair
356                     Perl_magic_mutexfree
357                     Perl_sv_lock
358                      );
359
360 unless ($define{'USE_ITHREADS'}) {
361     ++$skip{$_} foreach qw(
362                     PL_check_mutex
363                     PL_op_mutex
364                     PL_regex_pad
365                     PL_regex_padav
366                     PL_dollarzero_mutex
367                     PL_hints_mutex
368                     PL_my_ctx_mutex
369                     PL_perlio_mutex
370                     PL_stashpad
371                     PL_stashpadix
372                     PL_stashpadmax
373                     Perl_alloccopstash
374                     Perl_allocfilegv
375                     Perl_clone_params_del
376                     Perl_clone_params_new
377                     Perl_parser_dup
378                     Perl_dirp_dup
379                     Perl_cx_dup
380                     Perl_si_dup
381                     Perl_any_dup
382                     Perl_ss_dup
383                     Perl_fp_dup
384                     Perl_gp_dup
385                     Perl_he_dup
386                     Perl_mg_dup
387                     Perl_re_dup_guts
388                     Perl_sv_dup
389                     Perl_sv_dup_inc
390                     Perl_rvpv_dup
391                     Perl_hek_dup
392                     Perl_sys_intern_dup
393                     perl_clone
394                     perl_clone_using
395                     Perl_stashpv_hvname_match
396                     Perl_regdupe_internal
397                     Perl_newPADOP
398                          );
399 }
400
401 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
402     ++$skip{$_} foreach qw(
403                     PL_my_cxt_index
404                     PL_my_cxt_list
405                     PL_my_cxt_size
406                     PL_my_cxt_keys
407                     Perl_croak_nocontext
408                     Perl_die_nocontext
409                     Perl_deb_nocontext
410                     Perl_form_nocontext
411                     Perl_load_module_nocontext
412                     Perl_mess_nocontext
413                     Perl_warn_nocontext
414                     Perl_warner_nocontext
415                     Perl_newSVpvf_nocontext
416                     Perl_sv_catpvf_nocontext
417                     Perl_sv_setpvf_nocontext
418                     Perl_sv_catpvf_mg_nocontext
419                     Perl_sv_setpvf_mg_nocontext
420                     Perl_my_cxt_init
421                     Perl_my_cxt_index
422                          );
423 }
424 if ($define{'NO_MATHOMS'}) {
425     # win32 builds happen in the win32/ subdirectory, but vms builds happen
426     # at the top level, so we need to look in two candidate locations for
427     # the mathoms.c file.
428     my ($file) = grep { -f } qw( mathoms.c ../mathoms.c )
429         or die "No mathoms.c file found in . or ..\n";
430     open my $mathoms, '<', $file
431         or die "Cannot open $file: $!\n";
432     while (<$mathoms>) {
433         ++$skip{$1} if /\A ( NATIVE_TO_NEED
434                            | ASCII_TO_NEED
435                            | Perl_\w+ ) \s* \( /axms;
436     }
437 }
438
439 unless ($define{'PERL_NEED_APPCTX'}) {
440     ++$skip{PL_appctx};
441 }
442
443 unless ($define{'PERL_NEED_TIMESBASE'}) {
444     ++$skip{PL_timesbase};
445 }
446
447 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
448     ++$skip{PL_sv_serial};
449 }
450
451 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
452     ++$skip{PL_dumper_fd};
453 }
454
455 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
456     ++$skip{Perl_gv_SVadd};
457 }
458
459 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
460     ++$skip{Perl_my_sprintf};
461 }
462
463 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
464     ++$skip{PL_pidstatus};
465 }
466
467 unless ($define{'PERL_TRACK_MEMPOOL'}) {
468     ++$skip{PL_memory_debug_header};
469 }
470
471 unless ($define{'MULTIPLICITY'}) {
472     ++$skip{$_} foreach qw(
473                     PL_interp_size
474                     PL_interp_size_5_18_0
475                          );
476 }
477
478 unless ($define{'PERL_GLOBAL_STRUCT'}) {
479     ++$skip{PL_global_struct_size};
480 }
481
482 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
483     ++$skip{$_} foreach qw(
484                     PL_my_cxt_keys
485                     Perl_my_cxt_index
486                          );
487 }
488
489 unless ($define{HAS_MMAP}) {
490     ++$skip{PL_mmap_page_size};
491 }
492
493 if ($define{HAS_SIGACTION}) {
494     ++$skip{PL_sig_trapped};
495
496     if ($ARGS{PLATFORM} eq 'vms') {
497         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
498         ++$skip{PL_sig_ignoring};
499         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
500     }
501 }
502
503 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
504     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
505     ++$skip{Perl_csighandler_init};
506     ++$skip{Perl_my_kill};
507     ++$skip{Perl_sig_to_vmscondition};
508     ++$skip{PL_sig_defaulting};
509     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
510 }
511
512 unless ($define{USE_LOCALE_COLLATE}) {
513     ++$skip{$_} foreach qw(
514                     PL_collation_ix
515                     PL_collation_name
516                     PL_collation_standard
517                     PL_collxfrm_base
518                     PL_collxfrm_mult
519                     Perl_sv_collxfrm
520                     Perl_sv_collxfrm_flags
521                          );
522 }
523
524 unless ($define{USE_LOCALE_NUMERIC}) {
525     ++$skip{$_} foreach qw(
526                     PL_numeric_local
527                     PL_numeric_name
528                     PL_numeric_radix_sv
529                     PL_numeric_standard
530                          );
531 }
532
533 unless ($define{'USE_C_BACKTRACE'}) {
534     ++$skip{Perl_get_c_backtrace_dump};
535     ++$skip{Perl_dump_c_backtrace};
536 }
537
538 unless ($define{HAVE_INTERP_INTERN}) {
539     ++$skip{$_} foreach qw(
540                     Perl_sys_intern_clear
541                     Perl_sys_intern_dup
542                     Perl_sys_intern_init
543                     PL_sys_intern
544                          );
545 }
546
547 if ($define{HAS_SIGNBIT}) {
548     ++$skip{Perl_signbit};
549 }
550
551 if ($define{'PERL_GLOBAL_STRUCT'}) {
552     readvar('perlvars.h', \%skip);
553     # This seems like the least ugly way to cope with the fact that PL_sh_path
554     # is mentioned in perlvar.h and globvar.sym, and always exported.
555     delete $skip{PL_sh_path};
556     ++$export{Perl_GetVars};
557     try_symbols(qw(PL_Vars PL_VarsPtr))
558       unless $ARGS{CCTYPE} eq 'GCC' || $define{PERL_GLOBAL_STRUCT_PRIVATE};
559 } else {
560     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
561 }
562
563 ++$skip{PL_op_exec_cnt}
564     unless $define{PERL_TRACE_OPS};
565
566 # functions from *.sym files
567
568 my @syms = qw(globvar.sym);
569
570 # Symbols that are the public face of the PerlIO layers implementation
571 # These are in _addition to_ the public face of the abstraction
572 # and need to be exported to allow XS modules to implement layers
573 my @layer_syms = qw(
574                     PerlIOBase_binmode
575                     PerlIOBase_clearerr
576                     PerlIOBase_close
577                     PerlIOBase_dup
578                     PerlIOBase_eof
579                     PerlIOBase_error
580                     PerlIOBase_fileno
581                     PerlIOBase_open
582                     PerlIOBase_noop_fail
583                     PerlIOBase_noop_ok
584                     PerlIOBase_popped
585                     PerlIOBase_pushed
586                     PerlIOBase_read
587                     PerlIOBase_setlinebuf
588                     PerlIOBase_unread
589                     PerlIOBuf_bufsiz
590                     PerlIOBuf_close
591                     PerlIOBuf_dup
592                     PerlIOBuf_fill
593                     PerlIOBuf_flush
594                     PerlIOBuf_get_base
595                     PerlIOBuf_get_cnt
596                     PerlIOBuf_get_ptr
597                     PerlIOBuf_open
598                     PerlIOBuf_popped
599                     PerlIOBuf_pushed
600                     PerlIOBuf_read
601                     PerlIOBuf_seek
602                     PerlIOBuf_set_ptrcnt
603                     PerlIOBuf_tell
604                     PerlIOBuf_unread
605                     PerlIOBuf_write
606                     PerlIO_allocate
607                     PerlIO_apply_layera
608                     PerlIO_apply_layers
609                     PerlIO_arg_fetch
610                     PerlIO_debug
611                     PerlIO_define_layer
612                     PerlIO_find_layer
613                     PerlIO_isutf8
614                     PerlIO_layer_fetch
615                     PerlIO_list_alloc
616                     PerlIO_list_free
617                     PerlIO_modestr
618                     PerlIO_parse_layers
619                     PerlIO_pending
620                     PerlIO_perlio
621                     PerlIO_pop
622                     PerlIO_push
623                     PerlIO_sv_dup
624                     Perl_PerlIO_clearerr
625                     Perl_PerlIO_close
626                     Perl_PerlIO_context_layers
627                     Perl_PerlIO_eof
628                     Perl_PerlIO_error
629                     Perl_PerlIO_fileno
630                     Perl_PerlIO_fill
631                     Perl_PerlIO_flush
632                     Perl_PerlIO_get_base
633                     Perl_PerlIO_get_bufsiz
634                     Perl_PerlIO_get_cnt
635                     Perl_PerlIO_get_ptr
636                     Perl_PerlIO_read
637                     Perl_PerlIO_restore_errno
638                     Perl_PerlIO_save_errno
639                     Perl_PerlIO_seek
640                     Perl_PerlIO_set_cnt
641                     Perl_PerlIO_set_ptrcnt
642                     Perl_PerlIO_setlinebuf
643                     Perl_PerlIO_stderr
644                     Perl_PerlIO_stdin
645                     Perl_PerlIO_stdout
646                     Perl_PerlIO_tell
647                     Perl_PerlIO_unread
648                     Perl_PerlIO_write
649 );
650 if ($ARGS{PLATFORM} eq 'netware') {
651     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
652 }
653
654 if ($define{'USE_PERLIO'}) {
655     # Export the symbols that make up the PerlIO abstraction, regardless
656     # of its implementation - read from a file
657     push @syms, 'perlio.sym';
658
659     # PerlIO with layers - export implementation
660     try_symbols(@layer_syms, 'perlsio_binmode');
661 } else {
662         # -Uuseperlio
663         # Skip the PerlIO layer symbols - although
664         # nothing should have exported them anyway.
665         ++$skip{$_} foreach @layer_syms;
666         ++$skip{$_} foreach qw(
667                         perlsio_binmode
668                         PL_def_layerlist
669                         PL_known_layers
670                         PL_perlio
671                         PL_perlio_debug_fd
672                         PL_perlio_fd_refcnt
673                         PL_perlio_fd_refcnt_size
674                         PL_perlio_mutex
675                              );
676
677         # Also do NOT add abstraction symbols from $perlio_sym
678         # abstraction is done as #define to stdio
679         # Remaining remnants that _may_ be functions are handled below.
680 }
681
682 unless ($define{'USE_QUADMATH'}) {
683   ++$skip{Perl_quadmath_format_needed};
684   ++$skip{Perl_quadmath_format_single};
685 }
686
687 ###############################################################################
688
689 # At this point all skip lists should be completed, as we are about to test
690 # many symbols against them.
691
692 {
693     my %seen;
694     my ($embed) = setup_embed($ARGS{TARG_DIR});
695
696     foreach (@$embed) {
697         my ($flags, $retval, $func, @args) = @$_;
698         next unless $func;
699         if ($flags =~ /[AX]/ && $flags !~ /[xmi]/ || $flags =~ /b/) {
700             # public API, so export
701
702             # If a function is defined twice, for example before and after
703             # an #else, only export its name once. Important to do this test
704             # within the block, as the *first* definition may have flags which
705             # mean "don't export"
706             next if $seen{$func}++;
707             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
708             $func = "Perl_$func" if ($flags =~ /[pbX]/ && $func !~ /^Perl_/); 
709             ++$export{$func} unless exists $skip{$func};
710         }
711     }
712 }
713
714 foreach (@syms) {
715     my $syms = $ARGS{TARG_DIR} . $_;
716     open my $global, '<', $syms or die "failed to open $syms: $!\n";
717     while (<$global>) {
718         next unless /^([A-Za-z].*)/;
719         my $symbol = "$1";
720         ++$export{$symbol} unless exists $skip{$symbol};
721     }
722 }
723
724 # variables
725
726 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
727     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
728     # XXX AIX seems to want the perlvars.h symbols, for some reason
729     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
730         readvar('perlvars.h', \%export);
731     }
732 }
733 else {
734     unless ($define{'PERL_GLOBAL_STRUCT'}) {
735         readvar('perlvars.h', \%export);
736     }
737     unless ($define{MULTIPLICITY}) {
738         readvar('intrpvar.h', \%export);
739     }
740 }
741
742 # Oddities from PerlIO
743 # All have alternate implementations in perlio.c, so always exist.
744 # Should they be considered to be part of the API?
745 try_symbols(qw(
746                     PerlIO_binmode
747                     PerlIO_getpos
748                     PerlIO_init
749                     PerlIO_setpos
750                     PerlIO_tmpfile
751              ));
752
753 if ($ARGS{PLATFORM} eq 'win32') {
754     try_symbols(qw(
755                                  win32_free_childdir
756                                  win32_free_childenv
757                                  win32_get_childdir
758                                  win32_get_childenv
759                                  win32_spawnvp
760                  ));
761 }
762
763 if ($ARGS{PLATFORM} eq 'wince') {
764     ++$skip{'win32_isatty'}; # commit 4342f4d6df is win32-only
765 }
766
767 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
768     try_symbols(qw(
769                             Perl_init_os_extras
770                             Perl_thread_create
771                             Perl_win32_init
772                             Perl_win32_term
773                             RunPerl
774                             win32_async_check
775                             win32_errno
776                             win32_environ
777                             win32_abort
778                             win32_fstat
779                             win32_stat
780                             win32_pipe
781                             win32_popen
782                             win32_pclose
783                             win32_rename
784                             win32_setmode
785                             win32_chsize
786                             win32_lseek
787                             win32_tell
788                             win32_dup
789                             win32_dup2
790                             win32_open
791                             win32_close
792                             win32_eof
793                             win32_isatty
794                             win32_read
795                             win32_write
796                             win32_mkdir
797                             win32_rmdir
798                             win32_chdir
799                             win32_flock
800                             win32_execv
801                             win32_execvp
802                             win32_htons
803                             win32_ntohs
804                             win32_htonl
805                             win32_ntohl
806                             win32_inet_addr
807                             win32_inet_ntoa
808                             win32_socket
809                             win32_bind
810                             win32_listen
811                             win32_accept
812                             win32_connect
813                             win32_send
814                             win32_sendto
815                             win32_recv
816                             win32_recvfrom
817                             win32_shutdown
818                             win32_closesocket
819                             win32_ioctlsocket
820                             win32_setsockopt
821                             win32_getsockopt
822                             win32_getpeername
823                             win32_getsockname
824                             win32_gethostname
825                             win32_gethostbyname
826                             win32_gethostbyaddr
827                             win32_getprotobyname
828                             win32_getprotobynumber
829                             win32_getservbyname
830                             win32_getservbyport
831                             win32_select
832                             win32_endhostent
833                             win32_endnetent
834                             win32_endprotoent
835                             win32_endservent
836                             win32_getnetent
837                             win32_getnetbyname
838                             win32_getnetbyaddr
839                             win32_getprotoent
840                             win32_getservent
841                             win32_sethostent
842                             win32_setnetent
843                             win32_setprotoent
844                             win32_setservent
845                             win32_getenv
846                             win32_putenv
847                             win32_perror
848                             win32_malloc
849                             win32_calloc
850                             win32_realloc
851                             win32_free
852                             win32_sleep
853                             win32_times
854                             win32_access
855                             win32_alarm
856                             win32_chmod
857                             win32_open_osfhandle
858                             win32_get_osfhandle
859                             win32_ioctl
860                             win32_link
861                             win32_unlink
862                             win32_utime
863                             win32_gettimeofday
864                             win32_uname
865                             win32_wait
866                             win32_waitpid
867                             win32_kill
868                             win32_str_os_error
869                             win32_opendir
870                             win32_readdir
871                             win32_telldir
872                             win32_seekdir
873                             win32_rewinddir
874                             win32_closedir
875                             win32_longpath
876                             win32_ansipath
877                             win32_os_id
878                             win32_getpid
879                             win32_crypt
880                             win32_dynaload
881                             win32_clearenv
882                             win32_stdin
883                             win32_stdout
884                             win32_stderr
885                             win32_ferror
886                             win32_feof
887                             win32_strerror
888                             win32_fprintf
889                             win32_printf
890                             win32_vfprintf
891                             win32_vprintf
892                             win32_fread
893                             win32_fwrite
894                             win32_fopen
895                             win32_fdopen
896                             win32_freopen
897                             win32_fclose
898                             win32_fputs
899                             win32_fputc
900                             win32_ungetc
901                             win32_getc
902                             win32_fileno
903                             win32_clearerr
904                             win32_fflush
905                             win32_ftell
906                             win32_fseek
907                             win32_fgetpos
908                             win32_fsetpos
909                             win32_rewind
910                             win32_tmpfile
911                             win32_setbuf
912                             win32_setvbuf
913                             win32_flushall
914                             win32_fcloseall
915                             win32_fgets
916                             win32_gets
917                             win32_fgetc
918                             win32_putc
919                             win32_puts
920                             win32_getchar
921                             win32_putchar
922                  ));
923 }
924 elsif ($ARGS{PLATFORM} eq 'vms') {
925     try_symbols(qw(
926                       Perl_cando
927                       Perl_cando_by_name
928                       Perl_closedir
929                       Perl_csighandler_init
930                       Perl_do_rmdir
931                       Perl_fileify_dirspec
932                       Perl_fileify_dirspec_ts
933                       Perl_fileify_dirspec_utf8
934                       Perl_fileify_dirspec_utf8_ts
935                       Perl_flex_fstat
936                       Perl_flex_lstat
937                       Perl_flex_stat
938                       Perl_kill_file
939                       Perl_my_chdir
940                       Perl_my_chmod
941                       Perl_my_crypt
942                       Perl_my_endpwent
943                       Perl_my_fclose
944                       Perl_my_fdopen
945                       Perl_my_fgetname
946                       Perl_my_flush
947                       Perl_my_fwrite
948                       Perl_my_gconvert
949                       Perl_my_getenv
950                       Perl_my_getenv_len
951                       Perl_my_getlogin
952                       Perl_my_getpwnam
953                       Perl_my_getpwuid
954                       Perl_my_gmtime
955                       Perl_my_kill
956                       Perl_my_localtime
957                       Perl_my_mkdir
958                       Perl_my_sigaction
959                       Perl_my_symlink
960                       Perl_my_time
961                       Perl_my_tmpfile
962                       Perl_my_trnlnm
963                       Perl_my_utime
964                       Perl_my_waitpid
965                       Perl_opendir
966                       Perl_pathify_dirspec
967                       Perl_pathify_dirspec_ts
968                       Perl_pathify_dirspec_utf8
969                       Perl_pathify_dirspec_utf8_ts
970                       Perl_readdir
971                       Perl_readdir_r
972                       Perl_rename
973                       Perl_rmscopy
974                       Perl_rmsexpand
975                       Perl_rmsexpand_ts
976                       Perl_rmsexpand_utf8
977                       Perl_rmsexpand_utf8_ts
978                       Perl_seekdir
979                       Perl_sig_to_vmscondition
980                       Perl_telldir
981                       Perl_tounixpath
982                       Perl_tounixpath_ts
983                       Perl_tounixpath_utf8
984                       Perl_tounixpath_utf8_ts
985                       Perl_tounixspec
986                       Perl_tounixspec_ts
987                       Perl_tounixspec_utf8
988                       Perl_tounixspec_utf8_ts
989                       Perl_tovmspath
990                       Perl_tovmspath_ts
991                       Perl_tovmspath_utf8
992                       Perl_tovmspath_utf8_ts
993                       Perl_tovmsspec
994                       Perl_tovmsspec_ts
995                       Perl_tovmsspec_utf8
996                       Perl_tovmsspec_utf8_ts
997                       Perl_trim_unixpath
998                       Perl_vms_case_tolerant
999                       Perl_vms_do_aexec
1000                       Perl_vms_do_exec
1001                       Perl_vms_image_init
1002                       Perl_vms_realpath
1003                       Perl_vmssetenv
1004                       Perl_vmssetuserlnm
1005                       Perl_vmstrnenv
1006                       PerlIO_openn
1007                  ));
1008 }
1009 elsif ($ARGS{PLATFORM} eq 'os2') {
1010     try_symbols(qw(
1011                       ctermid
1012                       get_sysinfo
1013                       Perl_OS2_init
1014                       Perl_OS2_init3
1015                       Perl_OS2_term
1016                       OS2_Perl_data
1017                       dlopen
1018                       dlsym
1019                       dlerror
1020                       dlclose
1021                       dup2
1022                       dup
1023                       my_tmpfile
1024                       my_tmpnam
1025                       my_flock
1026                       my_rmdir
1027                       my_mkdir
1028                       my_getpwuid
1029                       my_getpwnam
1030                       my_getpwent
1031                       my_setpwent
1032                       my_endpwent
1033                       fork_with_resources
1034                       croak_with_os2error
1035                       setgrent
1036                       endgrent
1037                       getgrent
1038                       malloc_mutex
1039                       threads_mutex
1040                       nthreads
1041                       nthreads_cond
1042                       os2_cond_wait
1043                       os2_stat
1044                       os2_execname
1045                       async_mssleep
1046                       msCounter
1047                       InfoTable
1048                       pthread_join
1049                       pthread_create
1050                       pthread_detach
1051                       XS_Cwd_change_drive
1052                       XS_Cwd_current_drive
1053                       XS_Cwd_extLibpath
1054                       XS_Cwd_extLibpath_set
1055                       XS_Cwd_sys_abspath
1056                       XS_Cwd_sys_chdir
1057                       XS_Cwd_sys_cwd
1058                       XS_Cwd_sys_is_absolute
1059                       XS_Cwd_sys_is_relative
1060                       XS_Cwd_sys_is_rooted
1061                       XS_DynaLoader_mod2fname
1062                       XS_File__Copy_syscopy
1063                       Perl_Register_MQ
1064                       Perl_Deregister_MQ
1065                       Perl_Serve_Messages
1066                       Perl_Process_Messages
1067                       init_PMWIN_entries
1068                       PMWIN_entries
1069                       Perl_hab_GET
1070                       loadByOrdinal
1071                       pExtFCN
1072                       os2error
1073                       ResetWinError
1074                       CroakWinError
1075                       PL_do_undump
1076                  ));
1077 }
1078 elsif ($ARGS{PLATFORM} eq 'netware') {
1079     try_symbols(qw(
1080                         Perl_init_os_extras
1081                         Perl_thread_create
1082                         Perl_nw5_init
1083                         RunPerl
1084                         AllocStdPerl
1085                         FreeStdPerl
1086                         do_spawn2
1087                         do_aspawn
1088                         nw_uname
1089                         nw_stdin
1090                         nw_stdout
1091                         nw_stderr
1092                         nw_feof
1093                         nw_ferror
1094                         nw_fopen
1095                         nw_fclose
1096                         nw_clearerr
1097                         nw_getc
1098                         nw_fgets
1099                         nw_fputc
1100                         nw_fputs
1101                         nw_fflush
1102                         nw_ungetc
1103                         nw_fileno
1104                         nw_fdopen
1105                         nw_freopen
1106                         nw_fread
1107                         nw_fwrite
1108                         nw_setbuf
1109                         nw_setvbuf
1110                         nw_vfprintf
1111                         nw_ftell
1112                         nw_fseek
1113                         nw_rewind
1114                         nw_tmpfile
1115                         nw_fgetpos
1116                         nw_fsetpos
1117                         nw_dup
1118                         nw_access
1119                         nw_chmod
1120                         nw_chsize
1121                         nw_close
1122                         nw_dup2
1123                         nw_flock
1124                         nw_isatty
1125                         nw_link
1126                         nw_lseek
1127                         nw_stat
1128                         nw_mktemp
1129                         nw_open
1130                         nw_read
1131                         nw_rename
1132                         nw_setmode
1133                         nw_unlink
1134                         nw_utime
1135                         nw_write
1136                         nw_chdir
1137                         nw_rmdir
1138                         nw_closedir
1139                         nw_opendir
1140                         nw_readdir
1141                         nw_rewinddir
1142                         nw_seekdir
1143                         nw_telldir
1144                         nw_htonl
1145                         nw_htons
1146                         nw_ntohl
1147                         nw_ntohs
1148                         nw_accept
1149                         nw_bind
1150                         nw_connect
1151                         nw_endhostent
1152                         nw_endnetent
1153                         nw_endprotoent
1154                         nw_endservent
1155                         nw_gethostbyaddr
1156                         nw_gethostbyname
1157                         nw_gethostent
1158                         nw_gethostname
1159                         nw_getnetbyaddr
1160                         nw_getnetbyname
1161                         nw_getnetent
1162                         nw_getpeername
1163                         nw_getprotobyname
1164                         nw_getprotobynumber
1165                         nw_getprotoent
1166                         nw_getservbyname
1167                         nw_getservbyport
1168                         nw_getservent
1169                         nw_getsockname
1170                         nw_getsockopt
1171                         nw_inet_addr
1172                         nw_listen
1173                         nw_socket
1174                         nw_recv
1175                         nw_recvfrom
1176                         nw_select
1177                         nw_send
1178                         nw_sendto
1179                         nw_sethostent
1180                         nw_setnetent
1181                         nw_setprotoent
1182                         nw_setservent
1183                         nw_setsockopt
1184                         nw_inet_ntoa
1185                         nw_shutdown
1186                         nw_crypt
1187                         nw_execvp
1188                         nw_kill
1189                         nw_Popen
1190                         nw_Pclose
1191                         nw_Pipe
1192                         nw_times
1193                         nw_waitpid
1194                         nw_getpid
1195                         nw_spawnvp
1196                         nw_os_id
1197                         nw_open_osfhandle
1198                         nw_get_osfhandle
1199                         nw_abort
1200                         nw_sleep
1201                         nw_wait
1202                         nw_dynaload
1203                         nw_strerror
1204                         fnFpSetMode
1205                         fnInsertHashListAddrs
1206                         fnGetHashListAddrs
1207                         Perl_deb
1208                         Perl_sv_setsv
1209                         Perl_sv_catsv
1210                         Perl_sv_catpvn
1211                         Perl_sv_2pv
1212                         nw_freeenviron
1213                         Remove_Thread_Ctx
1214                  ));
1215 }
1216
1217 # When added this code was only run for Win32 and WinCE
1218 # Currently only Win32 links static extensions into the shared library.
1219 # The WinCE makefile doesn't appear to support static extensions, so this code
1220 # can't have any effect there.
1221 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1222 # list of dynamic extensions, and the rules to build them)
1223 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1224 # static extensions with -fPIC, but links them to perl, not libperl.so
1225 # The VMS build scripts don't yet implement static extensions at all.
1226
1227 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1228     # records of type boot_module for statically linked modules (except Dynaloader)
1229     my $static_ext = $Config{static_ext} // "";
1230     $static_ext =~ s/\//__/g;
1231     $static_ext =~ s/\bDynaLoader\b//;
1232     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1233     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1234 }
1235
1236 if ($ARGS{PLATFORM} eq 'os2') {
1237     my (%mapped, @missing);
1238     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1239     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1240     close MAP or die 'Cannot close miniperl.map';
1241
1242     @missing = grep { !exists $mapped{$_} }
1243                     keys %export;
1244     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1245     delete $export{$_} foreach @missing;
1246 }
1247
1248 ###############################################################################
1249
1250 # Now all symbols should be defined because next we are going to output them.
1251
1252 # Start with platform specific headers:
1253
1254 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1255     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1256         : "perl$Config{api_revision}$Config{api_version}";
1257     print "LIBRARY $dll\n";
1258     # The DESCRIPTION module definition file statement is not supported
1259     # by VC7 onwards.
1260     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1261         print "DESCRIPTION 'Perl interpreter'\n";
1262     }
1263     print "EXPORTS\n";
1264 }
1265 elsif ($ARGS{PLATFORM} eq 'os2') {
1266     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1267     $v .= '-thread' if $Config{archname} =~ /-thread/;
1268     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1269     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1270     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1271     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1272     print <<"---EOP---";
1273 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1274 $d
1275 STACKSIZE 32768
1276 CODE LOADONCALL
1277 DATA LOADONCALL NONSHARED MULTIPLE
1278 EXPORTS
1279 ---EOP---
1280 }
1281 elsif ($ARGS{PLATFORM} eq 'aix') {
1282     my $OSVER = `uname -v`;
1283     chop $OSVER;
1284     my $OSREL = `uname -r`;
1285     chop $OSREL;
1286     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1287         print "#! ..\n";
1288     } else {
1289         print "#!\n";
1290     }
1291 }
1292 elsif ($ARGS{PLATFORM} eq 'netware') {
1293         if ($ARGS{FILETYPE} eq 'def') {
1294         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1295         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1296         print "EXPORTS\n";
1297         }
1298 }
1299
1300 # Then the symbols
1301
1302 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1303 foreach my $symbol (@symbols) {
1304     if (PLATFORM eq 'win32' || PLATFORM eq 'wince') {
1305         # Remembering the origin file of each symbol is an alternative to PL_ matching
1306         if (substr($symbol, 0, 3) eq 'PL_') {
1307             print "\t$symbol DATA\n";
1308         }
1309         else {
1310             print "\t$symbol\n";
1311         }
1312     }
1313     elsif (PLATFORM eq 'os2') {
1314         printf qq(    %-31s \@%s\n),
1315           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1316         printf qq(    %-31s \@%s\n),
1317           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1318           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1319           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1320     }
1321     elsif (PLATFORM eq 'netware') {
1322         print "\t$symbol,\n";
1323     } else {
1324         print "$symbol\n";
1325     }
1326 }
1327
1328 # Then platform specific footers.
1329
1330 if ($ARGS{PLATFORM} eq 'os2') {
1331     print <<EOP;
1332     dll_perlmain=main
1333     fill_extLibpath
1334     dir_subst
1335     Perl_OS2_handler_install
1336
1337 ; LAST_ORDINAL=$sym_ord
1338 EOP
1339 }
1340
1341 1;