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Add thread-safe locale handling
[perl5.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{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
111                                            |KILL_BY_SIGPRC
112                                            |(?:PERL|USE|HAS)_\w+)\b/x;
113 }
114 close(CFG);
115
116 # perl.h logic duplication begins
117
118 if ($define{USE_ITHREADS}) {
119     if (!$define{MULTIPLICITY}) {
120         $define{MULTIPLICITY} = 1;
121     }
122 }
123
124 $define{PERL_IMPLICIT_CONTEXT} ||=
125     $define{USE_ITHREADS} ||
126     $define{MULTIPLICITY} ;
127
128 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
129     $define{USE_REENTRANT_API} = 1;
130 }
131
132 # perl.h logic duplication ends
133
134 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
135      unless $ARGS{PLATFORM} eq 'test';
136
137 my $sym_ord = 0;
138 my %ordinal;
139
140 if ($ARGS{PLATFORM} eq 'os2') {
141     if (open my $fh, '<', 'perl5.def') {
142       while (<$fh>) {
143         last if /^\s*EXPORTS\b/;
144       }
145       while (<$fh>) {
146         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
147         # This allows skipping ordinals which were used in older versions
148         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
149       }
150       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
151     }
152 }
153
154 my %skip;
155 # All platforms export boot_DynaLoader unconditionally.
156 my %export = ( boot_DynaLoader => 1 );
157
158 sub try_symbols {
159     foreach my $symbol (@_) {
160         ++$export{$symbol} unless exists $skip{$symbol};
161     }
162 }
163
164 sub readvar {
165     # $hash is the hash that we're adding to. For one of our callers, it will
166     # actually be the skip hash but that doesn't affect the intent of what
167     # we're doing, as in that case we skip adding something to the skip hash
168     # for the second time.
169
170     my $file = $ARGS{TARG_DIR} . shift;
171     my $hash = shift;
172     my $proc = shift;
173     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
174
175     while (<$vars>) {
176         # All symbols have a Perl_ prefix because that's what embed.h sticks
177         # in front of them.  The A?I?S?C? is strictly speaking wrong.
178         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
179
180         my $var = "PL_$3";
181         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
182         ++$hash->{$symbol} unless exists $skip{$var};
183     }
184 }
185
186 if ($ARGS{PLATFORM} ne 'os2') {
187     ++$skip{$_} foreach qw(
188                      PL_cryptseen
189                      PL_opsave
190                      Perl_GetVars
191                      Perl_dump_fds
192                      Perl_my_bcopy
193                      Perl_my_bzero
194                      Perl_my_chsize
195                      Perl_my_htonl
196                      Perl_my_memcmp
197                      Perl_my_memset
198                      Perl_my_ntohl
199                      Perl_my_swap
200                          );
201     if ($ARGS{PLATFORM} eq 'vms') {
202         ++$skip{PL_statusvalue_posix};
203         # This is a wrapper if we have symlink, not a replacement
204         # if we don't.
205         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
206     } else {
207         ++$skip{PL_statusvalue_vms};
208         ++$skip{PL_perllib_sep};
209         if ($ARGS{PLATFORM} ne 'aix') {
210             ++$skip{$_} foreach qw(
211                                 PL_DBcv
212                                 PL_generation
213                                 PL_lastgotoprobe
214                                 PL_modcount
215                                 main
216                                  );
217         }
218     }
219 }
220
221 if ($ARGS{PLATFORM} ne 'vms') {
222     # VMS does its own thing for these symbols.
223     ++$skip{$_} foreach qw(
224                         PL_sig_handlers_initted
225                         PL_sig_ignoring
226                         PL_sig_defaulting
227                          );
228     if ($ARGS{PLATFORM} ne 'win32') {
229         ++$skip{$_} foreach qw(
230                             Perl_do_spawn
231                             Perl_do_spawn_nowait
232                             Perl_do_aspawn
233                              );
234     }
235 }
236
237 if ($ARGS{PLATFORM} ne 'win32') {
238     ++$skip{$_} foreach qw(
239                     Perl_my_setlocale
240                          );
241 }
242
243 unless ($define{UNLINK_ALL_VERSIONS}) {
244     ++$skip{Perl_unlnk};
245 }
246
247 unless ($define{'DEBUGGING'}) {
248     ++$skip{$_} foreach qw(
249                     Perl_debop
250                     Perl_debprofdump
251                     Perl_debstack
252                     Perl_debstackptrs
253                     Perl_pad_sv
254                     Perl_pad_setsv
255                     Perl__setlocale_debug_string
256                     Perl_set_padlist
257                     Perl_hv_assert
258                     PL_watchaddr
259                     PL_watchok
260                     PL_watch_pvx
261                          );
262 }
263
264 if ($define{'PERL_IMPLICIT_SYS'}) {
265     ++$skip{$_} foreach qw(
266                     Perl_my_popen
267                     Perl_my_pclose
268                          );
269     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
270     ++$export{perl_clone_host} if $define{USE_ITHREADS};
271 }
272 else {
273     ++$skip{$_} foreach qw(
274                     PL_Mem
275                     PL_MemShared
276                     PL_MemParse
277                     PL_Env
278                     PL_StdIO
279                     PL_LIO
280                     PL_Dir
281                     PL_Sock
282                     PL_Proc
283                     perl_alloc_using
284                     perl_clone_using
285                          );
286 }
287
288 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
289     ++$skip{Perl_sv_setsv_cow};
290 }
291
292 unless ($define{PERL_SAWAMPERSAND}) {
293     ++$skip{PL_sawampersand};
294 }
295
296 unless ($define{'USE_REENTRANT_API'}) {
297     ++$skip{PL_reentrant_buffer};
298 }
299
300 if ($define{'MYMALLOC'}) {
301     try_symbols(qw(
302                     Perl_dump_mstats
303                     Perl_get_mstats
304                     Perl_strdup
305                     Perl_putenv
306                     MallocCfg_ptr
307                     MallocCfgP_ptr
308                     ));
309     unless ($define{USE_ITHREADS}) {
310         ++$skip{PL_malloc_mutex}
311     }
312 }
313 else {
314     ++$skip{$_} foreach qw(
315                     PL_malloc_mutex
316                     Perl_dump_mstats
317                     Perl_get_mstats
318                     MallocCfg_ptr
319                     MallocCfgP_ptr
320                          );
321 }
322
323 if ($define{'PERL_USE_SAFE_PUTENV'}) {
324     ++$skip{PL_use_safe_putenv};
325 }
326
327 unless ($define{'USE_ITHREADS'}) {
328     ++$skip{PL_thr_key};
329 }
330
331 # USE_5005THREADS symbols. Kept as reference for easier removal
332 ++$skip{$_} foreach qw(
333                     PL_sv_mutex
334                     PL_strtab_mutex
335                     PL_svref_mutex
336                     PL_cred_mutex
337                     PL_eval_mutex
338                     PL_fdpid_mutex
339                     PL_sv_lock_mutex
340                     PL_eval_cond
341                     PL_eval_owner
342                     PL_threads_mutex
343                     PL_nthreads
344                     PL_nthreads_cond
345                     PL_threadnum
346                     PL_threadsv_names
347                     PL_thrsv
348                     PL_vtbl_mutex
349                     Perl_condpair_magic
350                     Perl_new_struct_thread
351                     Perl_per_thread_magicals
352                     Perl_thread_create
353                     Perl_find_threadsv
354                     Perl_unlock_condpair
355                     Perl_magic_mutexfree
356                     Perl_sv_lock
357                      );
358
359 unless ($define{'USE_ITHREADS'}) {
360     ++$skip{$_} foreach qw(
361                     PL_keyword_plugin_mutex
362                     PL_check_mutex
363                     PL_curlocales
364                     PL_op_mutex
365                     PL_regex_pad
366                     PL_regex_padav
367                     PL_dollarzero_mutex
368                     PL_hints_mutex
369                     PL_locale_mutex
370                     PL_lc_numeric_mutex
371                     PL_my_ctx_mutex
372                     PL_perlio_mutex
373                     PL_stashpad
374                     PL_stashpadix
375                     PL_stashpadmax
376                     Perl_alloccopstash
377                     Perl_allocfilegv
378                     Perl_clone_params_del
379                     Perl_clone_params_new
380                     Perl_parser_dup
381                     Perl_dirp_dup
382                     Perl_cx_dup
383                     Perl_si_dup
384                     Perl_any_dup
385                     Perl_ss_dup
386                     Perl_fp_dup
387                     Perl_gp_dup
388                     Perl_he_dup
389                     Perl_mg_dup
390                     Perl_re_dup_guts
391                     Perl_sv_dup
392                     Perl_sv_dup_inc
393                     Perl_rvpv_dup
394                     Perl_hek_dup
395                     Perl_sys_intern_dup
396                     perl_clone
397                     perl_clone_using
398                     Perl_stashpv_hvname_match
399                     Perl_regdupe_internal
400                     Perl_newPADOP
401                          );
402 }
403
404 unless ( $define{'HAS_NEWLOCALE'}
405     &&   $define{'HAS_FREELOCALE'}
406     &&   $define{'HAS_USELOCALE'}
407     && ! $define{'NO_POSIX_2008_LOCALE'})
408 {
409     ++$skip{$_} foreach qw(
410         PL_C_locale_obj
411         PL_underlying_numeric_obj
412     );
413 }
414
415 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
416     ++$skip{$_} foreach qw(
417                     PL_my_cxt_index
418                     PL_my_cxt_list
419                     PL_my_cxt_size
420                     PL_my_cxt_keys
421                     Perl_croak_nocontext
422                     Perl_die_nocontext
423                     Perl_deb_nocontext
424                     Perl_form_nocontext
425                     Perl_load_module_nocontext
426                     Perl_mess_nocontext
427                     Perl_warn_nocontext
428                     Perl_warner_nocontext
429                     Perl_newSVpvf_nocontext
430                     Perl_sv_catpvf_nocontext
431                     Perl_sv_setpvf_nocontext
432                     Perl_sv_catpvf_mg_nocontext
433                     Perl_sv_setpvf_mg_nocontext
434                     Perl_my_cxt_init
435                     Perl_my_cxt_index
436                          );
437 }
438
439 unless ($define{'PERL_OP_PARENT'}) {
440     ++$skip{$_} foreach qw(
441                     Perl_op_parent
442                 );
443 }
444
445 unless ($define{'USE_DTRACE'}) {
446     ++$skip{$_} foreach qw(
447                     Perl_dtrace_probe_call
448                     Perl_dtrace_probe_load
449                     Perl_dtrace_probe_op
450                     Perl_dtrace_probe_phase
451                 );
452 }
453
454 unless ($define{'PERL_NEED_APPCTX'}) {
455     ++$skip{PL_appctx};
456 }
457
458 unless ($define{'PERL_NEED_TIMESBASE'}) {
459     ++$skip{PL_timesbase};
460 }
461
462 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
463     ++$skip{PL_sv_serial};
464 }
465
466 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
467     ++$skip{PL_dumper_fd};
468 }
469
470 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
471     ++$skip{Perl_gv_SVadd};
472 }
473
474 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
475     ++$skip{PL_pidstatus};
476 }
477
478 unless ($define{'PERL_TRACK_MEMPOOL'}) {
479     ++$skip{PL_memory_debug_header};
480 }
481
482 unless ($define{'MULTIPLICITY'}) {
483     ++$skip{$_} foreach qw(
484                     PL_interp_size
485                     PL_interp_size_5_18_0
486                     PL_sv_yes
487                     PL_sv_undef
488                     PL_sv_no
489                     PL_sv_zero
490                          );
491 }
492
493 unless ($define{'PERL_GLOBAL_STRUCT'}) {
494     ++$skip{PL_global_struct_size};
495 }
496
497 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
498     ++$skip{$_} foreach qw(
499                     PL_my_cxt_keys
500                     Perl_my_cxt_index
501                          );
502 }
503
504 unless ($define{HAS_MMAP}) {
505     ++$skip{PL_mmap_page_size};
506 }
507
508 if ($define{HAS_SIGACTION}) {
509     ++$skip{PL_sig_trapped};
510
511     if ($ARGS{PLATFORM} eq 'vms') {
512         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
513         ++$skip{PL_sig_ignoring};
514         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
515     }
516 }
517
518 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
519     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
520     ++$skip{Perl_csighandler_init};
521     ++$skip{Perl_my_kill};
522     ++$skip{Perl_sig_to_vmscondition};
523     ++$skip{PL_sig_defaulting};
524     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
525 }
526
527 if ($define{'HAS_STRNLEN'})
528 {
529     ++$skip{Perl_my_strnlen};
530 }
531
532 unless ($define{USE_LOCALE_COLLATE}) {
533     ++$skip{$_} foreach qw(
534                     PL_collation_ix
535                     PL_collation_name
536                     PL_collation_standard
537                     PL_collxfrm_base
538                     PL_collxfrm_mult
539                     Perl_sv_collxfrm
540                     Perl_sv_collxfrm_flags
541                          );
542 }
543
544 unless ($define{USE_LOCALE_NUMERIC}) {
545     ++$skip{$_} foreach qw(
546                     PL_numeric_local
547                     PL_numeric_name
548                     PL_numeric_radix_sv
549                     PL_numeric_standard
550                          );
551 }
552
553 unless ($define{'USE_C_BACKTRACE'}) {
554     ++$skip{Perl_get_c_backtrace_dump};
555     ++$skip{Perl_dump_c_backtrace};
556 }
557
558 unless ($define{HAVE_INTERP_INTERN}) {
559     ++$skip{$_} foreach qw(
560                     Perl_sys_intern_clear
561                     Perl_sys_intern_dup
562                     Perl_sys_intern_init
563                     PL_sys_intern
564                          );
565 }
566
567 if ($define{HAS_SIGNBIT}) {
568     ++$skip{Perl_signbit};
569 }
570
571 if ($define{'PERL_GLOBAL_STRUCT'}) {
572     readvar('perlvars.h', \%skip);
573     # This seems like the least ugly way to cope with the fact that PL_sh_path
574     # is mentioned in perlvar.h and globvar.sym, and always exported.
575     delete $skip{PL_sh_path};
576     ++$export{Perl_GetVars};
577     try_symbols(qw(PL_Vars PL_VarsPtr))
578       unless $ARGS{CCTYPE} eq 'GCC' || $define{PERL_GLOBAL_STRUCT_PRIVATE};
579 } else {
580     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
581 }
582
583 ++$skip{PL_op_exec_cnt}
584     unless $define{PERL_TRACE_OPS};
585
586 ++$skip{PL_hash_chars}
587     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
588
589 # functions from *.sym files
590
591 my @syms = qw(globvar.sym);
592
593 # Symbols that are the public face of the PerlIO layers implementation
594 # These are in _addition to_ the public face of the abstraction
595 # and need to be exported to allow XS modules to implement layers
596 my @layer_syms = qw(
597                     PerlIOBase_binmode
598                     PerlIOBase_clearerr
599                     PerlIOBase_close
600                     PerlIOBase_dup
601                     PerlIOBase_eof
602                     PerlIOBase_error
603                     PerlIOBase_fileno
604                     PerlIOBase_open
605                     PerlIOBase_noop_fail
606                     PerlIOBase_noop_ok
607                     PerlIOBase_popped
608                     PerlIOBase_pushed
609                     PerlIOBase_read
610                     PerlIOBase_setlinebuf
611                     PerlIOBase_unread
612                     PerlIOBuf_bufsiz
613                     PerlIOBuf_close
614                     PerlIOBuf_dup
615                     PerlIOBuf_fill
616                     PerlIOBuf_flush
617                     PerlIOBuf_get_base
618                     PerlIOBuf_get_cnt
619                     PerlIOBuf_get_ptr
620                     PerlIOBuf_open
621                     PerlIOBuf_popped
622                     PerlIOBuf_pushed
623                     PerlIOBuf_read
624                     PerlIOBuf_seek
625                     PerlIOBuf_set_ptrcnt
626                     PerlIOBuf_tell
627                     PerlIOBuf_unread
628                     PerlIOBuf_write
629                     PerlIO_allocate
630                     PerlIO_apply_layera
631                     PerlIO_apply_layers
632                     PerlIO_arg_fetch
633                     PerlIO_debug
634                     PerlIO_define_layer
635                     PerlIO_find_layer
636                     PerlIO_isutf8
637                     PerlIO_layer_fetch
638                     PerlIO_list_alloc
639                     PerlIO_list_free
640                     PerlIO_modestr
641                     PerlIO_parse_layers
642                     PerlIO_pending
643                     PerlIO_perlio
644                     PerlIO_pop
645                     PerlIO_push
646                     PerlIO_sv_dup
647                     Perl_PerlIO_clearerr
648                     Perl_PerlIO_close
649                     Perl_PerlIO_context_layers
650                     Perl_PerlIO_eof
651                     Perl_PerlIO_error
652                     Perl_PerlIO_fileno
653                     Perl_PerlIO_fill
654                     Perl_PerlIO_flush
655                     Perl_PerlIO_get_base
656                     Perl_PerlIO_get_bufsiz
657                     Perl_PerlIO_get_cnt
658                     Perl_PerlIO_get_ptr
659                     Perl_PerlIO_read
660                     Perl_PerlIO_restore_errno
661                     Perl_PerlIO_save_errno
662                     Perl_PerlIO_seek
663                     Perl_PerlIO_set_cnt
664                     Perl_PerlIO_set_ptrcnt
665                     Perl_PerlIO_setlinebuf
666                     Perl_PerlIO_stderr
667                     Perl_PerlIO_stdin
668                     Perl_PerlIO_stdout
669                     Perl_PerlIO_tell
670                     Perl_PerlIO_unread
671                     Perl_PerlIO_write
672 );
673 if ($ARGS{PLATFORM} eq 'netware') {
674     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
675 }
676
677 # Export the symbols that make up the PerlIO abstraction, regardless
678 # of its implementation - read from a file
679 push @syms, 'perlio.sym';
680
681 # PerlIO with layers - export implementation
682 try_symbols(@layer_syms, 'perlsio_binmode');
683
684
685 unless ($define{'USE_QUADMATH'}) {
686   ++$skip{Perl_quadmath_format_needed};
687   ++$skip{Perl_quadmath_format_single};
688 }
689
690 ###############################################################################
691
692 # At this point all skip lists should be completed, as we are about to test
693 # many symbols against them.
694
695 {
696     my %seen;
697     my ($embed) = setup_embed($ARGS{TARG_DIR});
698
699     foreach (@$embed) {
700         my ($flags, $retval, $func, @args) = @$_;
701         next unless $func;
702         if (   ($flags =~ /[AX]/ && $flags !~ /[xmi]/)
703             || ($flags =~ /b/ && ! $define{'NO_MATHOMS'}))
704         {
705             # public API, so export
706
707             # If a function is defined twice, for example before and after
708             # an #else, only export its name once. Important to do this test
709             # within the block, as the *first* definition may have flags which
710             # mean "don't export"
711             next if $seen{$func}++;
712             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
713             $func = "Perl_$func" if ($flags =~ /[pX]/ && $func !~ /^Perl_/);
714             ++$export{$func} unless exists $skip{$func};
715         }
716     }
717 }
718
719 foreach (@syms) {
720     my $syms = $ARGS{TARG_DIR} . $_;
721     open my $global, '<', $syms or die "failed to open $syms: $!\n";
722     while (<$global>) {
723         next unless /^([A-Za-z].*)/;
724         my $symbol = "$1";
725         ++$export{$symbol} unless exists $skip{$symbol};
726     }
727 }
728
729 # variables
730
731 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
732     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
733     # XXX AIX seems to want the perlvars.h symbols, for some reason
734     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
735         readvar('perlvars.h', \%export);
736     }
737 }
738 else {
739     unless ($define{'PERL_GLOBAL_STRUCT'}) {
740         readvar('perlvars.h', \%export);
741     }
742     unless ($define{MULTIPLICITY}) {
743         readvar('intrpvar.h', \%export);
744     }
745 }
746
747 # Oddities from PerlIO
748 # All have alternate implementations in perlio.c, so always exist.
749 # Should they be considered to be part of the API?
750 try_symbols(qw(
751                     PerlIO_binmode
752                     PerlIO_getpos
753                     PerlIO_init
754                     PerlIO_setpos
755                     PerlIO_tmpfile
756              ));
757
758 if ($ARGS{PLATFORM} eq 'win32') {
759     try_symbols(qw(
760                                  win32_free_childdir
761                                  win32_free_childenv
762                                  win32_get_childdir
763                                  win32_get_childenv
764                                  win32_spawnvp
765                  ));
766 }
767
768 if ($ARGS{PLATFORM} eq 'wince') {
769     ++$skip{'win32_isatty'}; # commit 4342f4d6df is win32-only
770 }
771
772 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
773     try_symbols(qw(
774                             Perl_init_os_extras
775                             Perl_thread_create
776                             Perl_win32_init
777                             Perl_win32_term
778                             RunPerl
779                             win32_async_check
780                             win32_errno
781                             win32_environ
782                             win32_abort
783                             win32_fstat
784                             win32_stat
785                             win32_pipe
786                             win32_popen
787                             win32_pclose
788                             win32_rename
789                             win32_setmode
790                             win32_chsize
791                             win32_lseek
792                             win32_tell
793                             win32_dup
794                             win32_dup2
795                             win32_open
796                             win32_close
797                             win32_eof
798                             win32_isatty
799                             win32_read
800                             win32_write
801                             win32_mkdir
802                             win32_rmdir
803                             win32_chdir
804                             win32_flock
805                             win32_execv
806                             win32_execvp
807                             win32_htons
808                             win32_ntohs
809                             win32_htonl
810                             win32_ntohl
811                             win32_inet_addr
812                             win32_inet_ntoa
813                             win32_socket
814                             win32_bind
815                             win32_listen
816                             win32_accept
817                             win32_connect
818                             win32_send
819                             win32_sendto
820                             win32_recv
821                             win32_recvfrom
822                             win32_shutdown
823                             win32_closesocket
824                             win32_ioctlsocket
825                             win32_setsockopt
826                             win32_getsockopt
827                             win32_getpeername
828                             win32_getsockname
829                             win32_gethostname
830                             win32_gethostbyname
831                             win32_gethostbyaddr
832                             win32_getprotobyname
833                             win32_getprotobynumber
834                             win32_getservbyname
835                             win32_getservbyport
836                             win32_select
837                             win32_endhostent
838                             win32_endnetent
839                             win32_endprotoent
840                             win32_endservent
841                             win32_getnetent
842                             win32_getnetbyname
843                             win32_getnetbyaddr
844                             win32_getprotoent
845                             win32_getservent
846                             win32_sethostent
847                             win32_setnetent
848                             win32_setprotoent
849                             win32_setservent
850                             win32_getenv
851                             win32_putenv
852                             win32_perror
853                             win32_malloc
854                             win32_calloc
855                             win32_realloc
856                             win32_free
857                             win32_sleep
858                             win32_times
859                             win32_access
860                             win32_alarm
861                             win32_chmod
862                             win32_open_osfhandle
863                             win32_get_osfhandle
864                             win32_ioctl
865                             win32_link
866                             win32_unlink
867                             win32_utime
868                             win32_gettimeofday
869                             win32_uname
870                             win32_wait
871                             win32_waitpid
872                             win32_kill
873                             win32_str_os_error
874                             win32_opendir
875                             win32_readdir
876                             win32_telldir
877                             win32_seekdir
878                             win32_rewinddir
879                             win32_closedir
880                             win32_longpath
881                             win32_ansipath
882                             win32_os_id
883                             win32_getpid
884                             win32_crypt
885                             win32_dynaload
886                             win32_clearenv
887                             win32_stdin
888                             win32_stdout
889                             win32_stderr
890                             win32_ferror
891                             win32_feof
892                             win32_strerror
893                             win32_fprintf
894                             win32_printf
895                             win32_vfprintf
896                             win32_vprintf
897                             win32_fread
898                             win32_fwrite
899                             win32_fopen
900                             win32_fdopen
901                             win32_freopen
902                             win32_fclose
903                             win32_fputs
904                             win32_fputc
905                             win32_ungetc
906                             win32_getc
907                             win32_fileno
908                             win32_clearerr
909                             win32_fflush
910                             win32_ftell
911                             win32_fseek
912                             win32_fgetpos
913                             win32_fsetpos
914                             win32_rewind
915                             win32_tmpfile
916                             win32_setbuf
917                             win32_setvbuf
918                             win32_flushall
919                             win32_fcloseall
920                             win32_fgets
921                             win32_gets
922                             win32_fgetc
923                             win32_putc
924                             win32_puts
925                             win32_getchar
926                             win32_putchar
927                  ));
928 }
929 elsif ($ARGS{PLATFORM} eq 'vms') {
930     try_symbols(qw(
931                       Perl_cando
932                       Perl_cando_by_name
933                       Perl_closedir
934                       Perl_csighandler_init
935                       Perl_do_rmdir
936                       Perl_fileify_dirspec
937                       Perl_fileify_dirspec_ts
938                       Perl_fileify_dirspec_utf8
939                       Perl_fileify_dirspec_utf8_ts
940                       Perl_flex_fstat
941                       Perl_flex_lstat
942                       Perl_flex_stat
943                       Perl_kill_file
944                       Perl_my_chdir
945                       Perl_my_chmod
946                       Perl_my_crypt
947                       Perl_my_endpwent
948                       Perl_my_fclose
949                       Perl_my_fdopen
950                       Perl_my_fgetname
951                       Perl_my_flush
952                       Perl_my_fwrite
953                       Perl_my_gconvert
954                       Perl_my_getenv
955                       Perl_my_getenv_len
956                       Perl_my_getpwnam
957                       Perl_my_getpwuid
958                       Perl_my_gmtime
959                       Perl_my_kill
960                       Perl_my_killpg
961                       Perl_my_localtime
962                       Perl_my_mkdir
963                       Perl_my_sigaction
964                       Perl_my_symlink
965                       Perl_my_time
966                       Perl_my_tmpfile
967                       Perl_my_trnlnm
968                       Perl_my_utime
969                       Perl_my_waitpid
970                       Perl_opendir
971                       Perl_pathify_dirspec
972                       Perl_pathify_dirspec_ts
973                       Perl_pathify_dirspec_utf8
974                       Perl_pathify_dirspec_utf8_ts
975                       Perl_readdir
976                       Perl_readdir_r
977                       Perl_rename
978                       Perl_rmscopy
979                       Perl_rmsexpand
980                       Perl_rmsexpand_ts
981                       Perl_rmsexpand_utf8
982                       Perl_rmsexpand_utf8_ts
983                       Perl_seekdir
984                       Perl_sig_to_vmscondition
985                       Perl_telldir
986                       Perl_tounixpath
987                       Perl_tounixpath_ts
988                       Perl_tounixpath_utf8
989                       Perl_tounixpath_utf8_ts
990                       Perl_tounixspec
991                       Perl_tounixspec_ts
992                       Perl_tounixspec_utf8
993                       Perl_tounixspec_utf8_ts
994                       Perl_tovmspath
995                       Perl_tovmspath_ts
996                       Perl_tovmspath_utf8
997                       Perl_tovmspath_utf8_ts
998                       Perl_tovmsspec
999                       Perl_tovmsspec_ts
1000                       Perl_tovmsspec_utf8
1001                       Perl_tovmsspec_utf8_ts
1002                       Perl_trim_unixpath
1003                       Perl_vms_case_tolerant
1004                       Perl_vms_do_aexec
1005                       Perl_vms_do_exec
1006                       Perl_vms_image_init
1007                       Perl_vms_realpath
1008                       Perl_vmssetenv
1009                       Perl_vmssetuserlnm
1010                       Perl_vmstrnenv
1011                       PerlIO_openn
1012                  ));
1013 }
1014 elsif ($ARGS{PLATFORM} eq 'os2') {
1015     try_symbols(qw(
1016                       ctermid
1017                       get_sysinfo
1018                       Perl_OS2_init
1019                       Perl_OS2_init3
1020                       Perl_OS2_term
1021                       OS2_Perl_data
1022                       dlopen
1023                       dlsym
1024                       dlerror
1025                       dlclose
1026                       dup2
1027                       dup
1028                       my_tmpfile
1029                       my_tmpnam
1030                       my_flock
1031                       my_rmdir
1032                       my_mkdir
1033                       my_getpwuid
1034                       my_getpwnam
1035                       my_getpwent
1036                       my_setpwent
1037                       my_endpwent
1038                       fork_with_resources
1039                       croak_with_os2error
1040                       setgrent
1041                       endgrent
1042                       getgrent
1043                       malloc_mutex
1044                       threads_mutex
1045                       nthreads
1046                       nthreads_cond
1047                       os2_cond_wait
1048                       os2_stat
1049                       os2_execname
1050                       async_mssleep
1051                       msCounter
1052                       InfoTable
1053                       pthread_join
1054                       pthread_create
1055                       pthread_detach
1056                       XS_Cwd_change_drive
1057                       XS_Cwd_current_drive
1058                       XS_Cwd_extLibpath
1059                       XS_Cwd_extLibpath_set
1060                       XS_Cwd_sys_abspath
1061                       XS_Cwd_sys_chdir
1062                       XS_Cwd_sys_cwd
1063                       XS_Cwd_sys_is_absolute
1064                       XS_Cwd_sys_is_relative
1065                       XS_Cwd_sys_is_rooted
1066                       XS_DynaLoader_mod2fname
1067                       XS_File__Copy_syscopy
1068                       Perl_Register_MQ
1069                       Perl_Deregister_MQ
1070                       Perl_Serve_Messages
1071                       Perl_Process_Messages
1072                       init_PMWIN_entries
1073                       PMWIN_entries
1074                       Perl_hab_GET
1075                       loadByOrdinal
1076                       pExtFCN
1077                       os2error
1078                       ResetWinError
1079                       CroakWinError
1080                       PL_do_undump
1081                  ));
1082 }
1083 elsif ($ARGS{PLATFORM} eq 'netware') {
1084     try_symbols(qw(
1085                         Perl_init_os_extras
1086                         Perl_thread_create
1087                         Perl_nw5_init
1088                         RunPerl
1089                         AllocStdPerl
1090                         FreeStdPerl
1091                         do_spawn2
1092                         do_aspawn
1093                         nw_uname
1094                         nw_stdin
1095                         nw_stdout
1096                         nw_stderr
1097                         nw_feof
1098                         nw_ferror
1099                         nw_fopen
1100                         nw_fclose
1101                         nw_clearerr
1102                         nw_getc
1103                         nw_fgets
1104                         nw_fputc
1105                         nw_fputs
1106                         nw_fflush
1107                         nw_ungetc
1108                         nw_fileno
1109                         nw_fdopen
1110                         nw_freopen
1111                         nw_fread
1112                         nw_fwrite
1113                         nw_setbuf
1114                         nw_setvbuf
1115                         nw_vfprintf
1116                         nw_ftell
1117                         nw_fseek
1118                         nw_rewind
1119                         nw_tmpfile
1120                         nw_fgetpos
1121                         nw_fsetpos
1122                         nw_dup
1123                         nw_access
1124                         nw_chmod
1125                         nw_chsize
1126                         nw_close
1127                         nw_dup2
1128                         nw_flock
1129                         nw_isatty
1130                         nw_link
1131                         nw_lseek
1132                         nw_stat
1133                         nw_mktemp
1134                         nw_open
1135                         nw_read
1136                         nw_rename
1137                         nw_setmode
1138                         nw_unlink
1139                         nw_utime
1140                         nw_write
1141                         nw_chdir
1142                         nw_rmdir
1143                         nw_closedir
1144                         nw_opendir
1145                         nw_readdir
1146                         nw_rewinddir
1147                         nw_seekdir
1148                         nw_telldir
1149                         nw_htonl
1150                         nw_htons
1151                         nw_ntohl
1152                         nw_ntohs
1153                         nw_accept
1154                         nw_bind
1155                         nw_connect
1156                         nw_endhostent
1157                         nw_endnetent
1158                         nw_endprotoent
1159                         nw_endservent
1160                         nw_gethostbyaddr
1161                         nw_gethostbyname
1162                         nw_gethostent
1163                         nw_gethostname
1164                         nw_getnetbyaddr
1165                         nw_getnetbyname
1166                         nw_getnetent
1167                         nw_getpeername
1168                         nw_getprotobyname
1169                         nw_getprotobynumber
1170                         nw_getprotoent
1171                         nw_getservbyname
1172                         nw_getservbyport
1173                         nw_getservent
1174                         nw_getsockname
1175                         nw_getsockopt
1176                         nw_inet_addr
1177                         nw_listen
1178                         nw_socket
1179                         nw_recv
1180                         nw_recvfrom
1181                         nw_select
1182                         nw_send
1183                         nw_sendto
1184                         nw_sethostent
1185                         nw_setnetent
1186                         nw_setprotoent
1187                         nw_setservent
1188                         nw_setsockopt
1189                         nw_inet_ntoa
1190                         nw_shutdown
1191                         nw_crypt
1192                         nw_execvp
1193                         nw_kill
1194                         nw_Popen
1195                         nw_Pclose
1196                         nw_Pipe
1197                         nw_times
1198                         nw_waitpid
1199                         nw_getpid
1200                         nw_spawnvp
1201                         nw_os_id
1202                         nw_open_osfhandle
1203                         nw_get_osfhandle
1204                         nw_abort
1205                         nw_sleep
1206                         nw_wait
1207                         nw_dynaload
1208                         nw_strerror
1209                         fnFpSetMode
1210                         fnInsertHashListAddrs
1211                         fnGetHashListAddrs
1212                         Perl_deb
1213                         Perl_sv_setsv
1214                         Perl_sv_catsv
1215                         Perl_sv_catpvn
1216                         Perl_sv_2pv
1217                         nw_freeenviron
1218                         Remove_Thread_Ctx
1219                  ));
1220 }
1221
1222 # When added this code was only run for Win32 and WinCE
1223 # Currently only Win32 links static extensions into the shared library.
1224 # The WinCE makefile doesn't appear to support static extensions, so this code
1225 # can't have any effect there.
1226 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1227 # list of dynamic extensions, and the rules to build them)
1228 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1229 # static extensions with -fPIC, but links them to perl, not libperl.so
1230 # The VMS build scripts don't yet implement static extensions at all.
1231
1232 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1233     # records of type boot_module for statically linked modules (except Dynaloader)
1234     my $static_ext = $Config{static_ext} // "";
1235     $static_ext =~ s/\//__/g;
1236     $static_ext =~ s/\bDynaLoader\b//;
1237     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1238     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1239 }
1240
1241 if ($ARGS{PLATFORM} eq 'os2') {
1242     my (%mapped, @missing);
1243     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1244     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1245     close MAP or die 'Cannot close miniperl.map';
1246
1247     @missing = grep { !exists $mapped{$_} }
1248                     keys %export;
1249     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1250     delete $export{$_} foreach @missing;
1251 }
1252
1253 ###############################################################################
1254
1255 # Now all symbols should be defined because next we are going to output them.
1256
1257 # Start with platform specific headers:
1258
1259 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1260     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1261         : "perl$Config{api_revision}$Config{api_version}";
1262     print "LIBRARY $dll\n";
1263     # The DESCRIPTION module definition file statement is not supported
1264     # by VC7 onwards.
1265     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1266         print "DESCRIPTION 'Perl interpreter'\n";
1267     }
1268     print "EXPORTS\n";
1269 }
1270 elsif ($ARGS{PLATFORM} eq 'os2') {
1271     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1272     $v .= '-thread' if $Config{archname} =~ /-thread/;
1273     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1274     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1275     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1276     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1277     print <<"---EOP---";
1278 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1279 $d
1280 STACKSIZE 32768
1281 CODE LOADONCALL
1282 DATA LOADONCALL NONSHARED MULTIPLE
1283 EXPORTS
1284 ---EOP---
1285 }
1286 elsif ($ARGS{PLATFORM} eq 'aix') {
1287     my $OSVER = `uname -v`;
1288     chop $OSVER;
1289     my $OSREL = `uname -r`;
1290     chop $OSREL;
1291     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1292         print "#! ..\n";
1293     } else {
1294         print "#!\n";
1295     }
1296 }
1297 elsif ($ARGS{PLATFORM} eq 'netware') {
1298         if ($ARGS{FILETYPE} eq 'def') {
1299         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1300         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1301         print "EXPORTS\n";
1302         }
1303 }
1304
1305 # Then the symbols
1306
1307 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1308 foreach my $symbol (@symbols) {
1309     if (PLATFORM eq 'win32' || PLATFORM eq 'wince') {
1310         # Remembering the origin file of each symbol is an alternative to PL_ matching
1311         if (substr($symbol, 0, 3) eq 'PL_') {
1312             print "\t$symbol DATA\n";
1313         }
1314         else {
1315             print "\t$symbol\n";
1316         }
1317     }
1318     elsif (PLATFORM eq 'os2') {
1319         printf qq(    %-31s \@%s\n),
1320           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1321         printf qq(    %-31s \@%s\n),
1322           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1323           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1324           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1325     }
1326     elsif (PLATFORM eq 'netware') {
1327         print "\t$symbol,\n";
1328     } else {
1329         print "$symbol\n";
1330     }
1331 }
1332
1333 # Then platform specific footers.
1334
1335 if ($ARGS{PLATFORM} eq 'os2') {
1336     print <<EOP;
1337     dll_perlmain=main
1338     fill_extLibpath
1339     dir_subst
1340     Perl_OS2_handler_install
1341
1342 ; LAST_ORDINAL=$sym_ord
1343 EOP
1344 }
1345
1346 1;