This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Import perl5321delta.pod
[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 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 'netware';
79
80 # Add the compile-time options that miniperl was built with to %define.
81 # On Win32 these are not the same options as perl itself will be built
82 # with since miniperl is built with a canned config (one of the win32/
83 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
84 # but they do include some #define's that are hard-coded in various
85 # source files and header files and don't include any BUILDOPT's that
86 # the user might have chosen to disable because the canned configs are
87 # minimal configs that don't include any of those options.
88
89 my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
90 print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
91 $define{$_} = 1 foreach @options;
92
93 my %exportperlmalloc =
94     (
95        Perl_malloc              =>      "malloc",
96        Perl_mfree               =>      "free",
97        Perl_realloc             =>      "realloc",
98        Perl_calloc              =>      "calloc",
99     );
100
101 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
102
103 my $config_h = 'config.h';
104 open(CFG, '<', $config_h) || die "Cannot open $config_h: $!\n";
105 while (<CFG>) {
106     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
107                                            |KILL_BY_SIGPRC
108                                            |(?:PERL|USE|HAS)_\w+)\b/x;
109 }
110 close(CFG);
111
112 # perl.h logic duplication begins
113
114 if ($define{USE_ITHREADS}) {
115     if (!$define{MULTIPLICITY}) {
116         $define{MULTIPLICITY} = 1;
117     }
118 }
119
120 $define{PERL_IMPLICIT_CONTEXT} ||=
121     $define{USE_ITHREADS} ||
122     $define{MULTIPLICITY} ;
123
124 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'netware') {
125     $define{USE_REENTRANT_API} = 1;
126 }
127
128 if (! $define{NO_LOCALE}) {
129     if ( ! $define{NO_POSIX_2008_LOCALE}
130         && $define{HAS_NEWLOCALE}
131         && $define{HAS_USELOCALE}
132         && $define{HAS_DUPLOCALE}
133         && $define{HAS_FREELOCALE})
134     {
135         $define{HAS_POSIX_2008_LOCALE} = 1;
136         $define{USE_LOCALE} = 1;
137     }
138     elsif ($define{HAS_SETLOCALE}) {
139         $define{USE_LOCALE} = 1;
140     }
141 }
142
143 # https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B#Internal_version_numbering
144 my $cctype = $ARGS{CCTYPE} =~ s/MSVC//r;
145 if (! $define{HAS_SETLOCALE} && $define{HAS_POSIX_2008_LOCALE}) {
146     $define{USE_POSIX_2008_LOCALE} = 1;
147     $define{USE_THREAD_SAFE_LOCALE} = 1;
148 }
149 elsif (   ($define{USE_ITHREADS} || $define{USE_THREAD_SAFE_LOCALE})
150        && (    $define{HAS_POSIX_2008_LOCALE}
151            || ($ARGS{PLATFORM} eq 'win32' && (   $cctype !~ /\D/
152                                               && $cctype >= 80)))
153        && ! $define{NO_THREAD_SAFE_LOCALE})
154 {
155     $define{USE_THREAD_SAFE_LOCALE} = 1 unless $define{USE_THREAD_SAFE_LOCALE};
156     $define{USE_POSIX_2008_LOCALE} = 1 if $define{HAS_POSIX_2008_LOCALE};
157 }
158
159 if (   $ARGS{PLATFORM} eq 'win32'
160     && $define{USE_THREAD_SAFE_LOCALE}
161     && $cctype < 140)
162 {
163     $define{TS_W32_BROKEN_LOCALECONV} = 1;
164 }
165
166 # perl.h logic duplication ends
167
168 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
169      unless $ARGS{PLATFORM} eq 'test';
170
171 my $sym_ord = 0;
172 my %ordinal;
173
174 if ($ARGS{PLATFORM} eq 'os2') {
175     if (open my $fh, '<', 'perl5.def') {
176       while (<$fh>) {
177         last if /^\s*EXPORTS\b/;
178       }
179       while (<$fh>) {
180         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
181         # This allows skipping ordinals which were used in older versions
182         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
183       }
184       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
185     }
186 }
187
188 my %skip;
189 # All platforms export boot_DynaLoader unconditionally.
190 my %export = ( boot_DynaLoader => 1 );
191
192 sub try_symbols {
193     foreach my $symbol (@_) {
194         ++$export{$symbol} unless exists $skip{$symbol};
195     }
196 }
197
198 sub readvar {
199     # $hash is the hash that we're adding to. For one of our callers, it will
200     # actually be the skip hash but that doesn't affect the intent of what
201     # we're doing, as in that case we skip adding something to the skip hash
202     # for the second time.
203
204     my $file = $ARGS{TARG_DIR} . shift;
205     my $hash = shift;
206     my $proc = shift;
207     open my $vars, '<', $file or die "Cannot open $file: $!\n";
208
209     while (<$vars>) {
210         # All symbols have a Perl_ prefix because that's what embed.h sticks
211         # in front of them.  The A?I?S?C? is strictly speaking wrong.
212         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
213
214         my $var = "PL_$3";
215         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
216         ++$hash->{$symbol} unless exists $skip{$var};
217     }
218 }
219
220 if ($ARGS{PLATFORM} ne 'os2') {
221     ++$skip{$_} foreach qw(
222                      PL_opsave
223                      Perl_dump_fds
224                      Perl_my_bcopy
225                      Perl_my_bzero
226                      Perl_my_chsize
227                      Perl_my_htonl
228                      Perl_my_memcmp
229                      Perl_my_memset
230                      Perl_my_ntohl
231                      Perl_my_swap
232                          );
233     if ($ARGS{PLATFORM} eq 'vms') {
234         ++$skip{PL_statusvalue_posix};
235         # This is a wrapper if we have symlink, not a replacement
236         # if we don't.
237         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
238     } else {
239         ++$skip{PL_statusvalue_vms};
240         ++$skip{PL_perllib_sep};
241         if ($ARGS{PLATFORM} ne 'aix') {
242             ++$skip{$_} foreach qw(
243                                 PL_DBcv
244                                 PL_generation
245                                 PL_lastgotoprobe
246                                 PL_modcount
247                                 main
248                                  );
249         }
250     }
251 }
252
253 if ($ARGS{PLATFORM} ne 'vms') {
254     # VMS does its own thing for these symbols.
255     ++$skip{$_} foreach qw(
256                         PL_sig_handlers_initted
257                         PL_sig_ignoring
258                         PL_sig_defaulting
259                          );
260     if ($ARGS{PLATFORM} ne 'win32') {
261         ++$skip{$_} foreach qw(
262                             Perl_do_spawn
263                             Perl_do_spawn_nowait
264                             Perl_do_aspawn
265                              );
266     }
267 }
268
269 if ($ARGS{PLATFORM} ne 'win32') {
270     ++$skip{$_} foreach qw(
271                     Perl_my_setlocale
272                          );
273 }
274
275 unless ($define{UNLINK_ALL_VERSIONS}) {
276     ++$skip{Perl_unlnk};
277 }
278
279 unless ($define{'DEBUGGING'}) {
280     ++$skip{$_} foreach qw(
281                     Perl_debop
282                     Perl_debprofdump
283                     Perl_debstack
284                     Perl_debstackptrs
285                     Perl_pad_sv
286                     Perl_pad_setsv
287                     Perl__setlocale_debug_string
288                     Perl_set_padlist
289                     Perl_hv_assert
290                     PL_watchaddr
291                     PL_watchok
292                          );
293 }
294
295 if ($define{'PERL_IMPLICIT_SYS'}) {
296     ++$skip{$_} foreach qw(
297                     Perl_my_popen
298                     Perl_my_pclose
299                          );
300     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
301     ++$export{perl_clone_host} if $define{USE_ITHREADS};
302 }
303 else {
304     ++$skip{$_} foreach qw(
305                     PL_Mem
306                     PL_MemShared
307                     PL_MemParse
308                     PL_Env
309                     PL_StdIO
310                     PL_LIO
311                     PL_Dir
312                     PL_Sock
313                     PL_Proc
314                     perl_alloc_using
315                     perl_clone_using
316                          );
317 }
318
319 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
320     ++$skip{Perl_sv_setsv_cow};
321 }
322
323 unless ($define{PERL_SAWAMPERSAND}) {
324     ++$skip{PL_sawampersand};
325 }
326
327 unless ($define{'USE_REENTRANT_API'}) {
328     ++$skip{PL_reentrant_buffer};
329 }
330
331 if ($define{'MYMALLOC'}) {
332     try_symbols(qw(
333                     Perl_dump_mstats
334                     Perl_get_mstats
335                     Perl_strdup
336                     Perl_putenv
337                     MallocCfg_ptr
338                     MallocCfgP_ptr
339                     ));
340     unless ($define{USE_ITHREADS}) {
341         ++$skip{PL_malloc_mutex}
342     }
343 }
344 else {
345     ++$skip{$_} foreach qw(
346                     PL_malloc_mutex
347                     Perl_dump_mstats
348                     Perl_get_mstats
349                     MallocCfg_ptr
350                     MallocCfgP_ptr
351                          );
352 }
353
354 if ($define{'PERL_USE_SAFE_PUTENV'}) {
355     ++$skip{PL_use_safe_putenv};
356 }
357
358 unless ($define{'USE_ITHREADS'}) {
359     ++$skip{PL_thr_key};
360     ++$skip{PL_user_prop_mutex};
361     ++$skip{PL_user_def_props_aTHX};
362 }
363
364 unless ($define{'USE_ITHREADS'}) {
365     ++$skip{$_} foreach qw(
366                     PL_keyword_plugin_mutex
367                     PL_check_mutex
368                     PL_op_mutex
369                     PL_regex_pad
370                     PL_regex_padav
371                     PL_dollarzero_mutex
372                     PL_env_mutex
373                     PL_hints_mutex
374                     PL_locale_mutex
375                     PL_lc_numeric_mutex
376                     PL_lc_numeric_mutex_depth
377                     PL_my_ctx_mutex
378                     PL_perlio_mutex
379                     PL_stashpad
380                     PL_stashpadix
381                     PL_stashpadmax
382                     Perl_alloccopstash
383                     Perl_allocfilegv
384                     Perl_clone_params_del
385                     Perl_clone_params_new
386                     Perl_parser_dup
387                     Perl_dirp_dup
388                     Perl_cx_dup
389                     Perl_si_dup
390                     Perl_any_dup
391                     Perl_ss_dup
392                     Perl_fp_dup
393                     Perl_gp_dup
394                     Perl_he_dup
395                     Perl_mg_dup
396                     Perl_re_dup_guts
397                     Perl_sv_dup
398                     Perl_sv_dup_inc
399                     Perl_rvpv_dup
400                     Perl_hek_dup
401                     Perl_sys_intern_dup
402                     perl_clone
403                     perl_clone_using
404                     Perl_stashpv_hvname_match
405                     Perl_regdupe_internal
406                     Perl_newPADOP
407                          );
408 }
409
410 if (      $define{NO_LOCALE}
411     || (! $define{USE_ITHREADS} && ! $define{USE_THREAD_SAFE_LOCALE}))
412 {
413     ++$skip{$_} foreach qw(
414         PL_C_locale_obj
415         PL_curlocales
416     );
417 }
418
419 unless ( $define{'HAS_NEWLOCALE'}
420     &&   $define{'HAS_FREELOCALE'}
421     &&   $define{'HAS_USELOCALE'}
422     && ! $define{'NO_POSIX_2008_LOCALE'})
423 {
424     ++$skip{$_} foreach qw(
425         PL_C_locale_obj
426         PL_underlying_numeric_obj
427     );
428 }
429
430 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
431     ++$skip{$_} foreach qw(
432                     PL_my_cxt_index
433                     PL_my_cxt_list
434                     PL_my_cxt_size
435                     PL_my_cxt_keys
436                     PL_my_cxt_keys_size
437                     Perl_croak_nocontext
438                     Perl_die_nocontext
439                     Perl_deb_nocontext
440                     Perl_form_nocontext
441                     Perl_load_module_nocontext
442                     Perl_mess_nocontext
443                     Perl_warn_nocontext
444                     Perl_warner_nocontext
445                     Perl_newSVpvf_nocontext
446                     Perl_sv_catpvf_nocontext
447                     Perl_sv_setpvf_nocontext
448                     Perl_sv_catpvf_mg_nocontext
449                     Perl_sv_setpvf_mg_nocontext
450                     Perl_my_cxt_init
451                     Perl_my_cxt_index
452                          );
453 }
454
455 if ($define{USE_THREAD_SAFE_LOCALE}) {
456     ++$skip{PL_lc_numeric_mutex};
457     ++$skip{PL_lc_numeric_mutex_depth};
458 }
459
460 unless ($define{'USE_DTRACE'}) {
461     ++$skip{$_} foreach qw(
462                     Perl_dtrace_probe_call
463                     Perl_dtrace_probe_load
464                     Perl_dtrace_probe_op
465                     Perl_dtrace_probe_phase
466                 );
467 }
468
469 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
470     ++$skip{PL_sv_serial};
471 }
472
473 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
474     ++$skip{PL_dumper_fd};
475 }
476
477 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
478     ++$skip{Perl_gv_SVadd};
479 }
480
481 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
482     ++$skip{PL_pidstatus};
483 }
484
485 unless ($define{'PERL_TRACK_MEMPOOL'}) {
486     ++$skip{PL_memory_debug_header};
487 }
488
489 unless ($define{'PERL_MEM_LOG'}) {
490     ++$skip{PL_mem_log};
491 }
492
493 unless ($define{'MULTIPLICITY'}) {
494     ++$skip{$_} foreach qw(
495                     PL_interp_size
496                     PL_interp_size_5_18_0
497                     PL_sv_yes
498                     PL_sv_undef
499                     PL_sv_no
500                     PL_sv_zero
501                          );
502 }
503
504 unless ($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                     PL_strxfrm_NUL_replacement
542                     PL_strxfrm_is_behaved
543                     PL_strxfrm_max_cp
544                          );
545 }
546
547 unless ($define{USE_LOCALE_NUMERIC}) {
548     ++$skip{$_} foreach qw(
549                     PL_numeric_local
550                     PL_numeric_name
551                     PL_numeric_radix_sv
552                     PL_numeric_standard
553                     PL_numeric_underlying
554                     PL_numeric_underlying_is_standard
555                     PL_underlying_numeric_obj
556                          );
557 }
558
559 unless ($define{'USE_C_BACKTRACE'}) {
560     ++$skip{Perl_get_c_backtrace_dump};
561     ++$skip{Perl_dump_c_backtrace};
562 }
563
564 unless ($define{HAVE_INTERP_INTERN}) {
565     ++$skip{$_} foreach qw(
566                     Perl_sys_intern_clear
567                     Perl_sys_intern_dup
568                     Perl_sys_intern_init
569                     PL_sys_intern
570                          );
571 }
572
573 if ($define{HAS_SIGNBIT}) {
574     ++$skip{Perl_signbit};
575 }
576
577 ++$skip{PL_op_exec_cnt}
578     unless $define{PERL_TRACE_OPS};
579
580 ++$skip{PL_hash_chars}
581     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
582
583 # functions from *.sym files
584
585 my @syms = qw(globvar.sym);
586
587 # Symbols that are the public face of the PerlIO layers implementation
588 # These are in _addition to_ the public face of the abstraction
589 # and need to be exported to allow XS modules to implement layers
590 my @layer_syms = qw(
591                     PerlIOBase_binmode
592                     PerlIOBase_clearerr
593                     PerlIOBase_close
594                     PerlIOBase_dup
595                     PerlIOBase_eof
596                     PerlIOBase_error
597                     PerlIOBase_fileno
598                     PerlIOBase_open
599                     PerlIOBase_noop_fail
600                     PerlIOBase_noop_ok
601                     PerlIOBase_popped
602                     PerlIOBase_pushed
603                     PerlIOBase_read
604                     PerlIOBase_setlinebuf
605                     PerlIOBase_unread
606                     PerlIOBuf_bufsiz
607                     PerlIOBuf_close
608                     PerlIOBuf_dup
609                     PerlIOBuf_fill
610                     PerlIOBuf_flush
611                     PerlIOBuf_get_base
612                     PerlIOBuf_get_cnt
613                     PerlIOBuf_get_ptr
614                     PerlIOBuf_open
615                     PerlIOBuf_popped
616                     PerlIOBuf_pushed
617                     PerlIOBuf_read
618                     PerlIOBuf_seek
619                     PerlIOBuf_set_ptrcnt
620                     PerlIOBuf_tell
621                     PerlIOBuf_unread
622                     PerlIOBuf_write
623                     PerlIO_allocate
624                     PerlIO_apply_layera
625                     PerlIO_apply_layers
626                     PerlIO_arg_fetch
627                     PerlIO_debug
628                     PerlIO_define_layer
629                     PerlIO_find_layer
630                     PerlIO_isutf8
631                     PerlIO_layer_fetch
632                     PerlIO_list_alloc
633                     PerlIO_list_free
634                     PerlIO_modestr
635                     PerlIO_parse_layers
636                     PerlIO_pending
637                     PerlIO_perlio
638                     PerlIO_pop
639                     PerlIO_push
640                     PerlIO_sv_dup
641                     Perl_PerlIO_clearerr
642                     Perl_PerlIO_close
643                     Perl_PerlIO_context_layers
644                     Perl_PerlIO_eof
645                     Perl_PerlIO_error
646                     Perl_PerlIO_fileno
647                     Perl_PerlIO_fill
648                     Perl_PerlIO_flush
649                     Perl_PerlIO_get_base
650                     Perl_PerlIO_get_bufsiz
651                     Perl_PerlIO_get_cnt
652                     Perl_PerlIO_get_ptr
653                     Perl_PerlIO_read
654                     Perl_PerlIO_restore_errno
655                     Perl_PerlIO_save_errno
656                     Perl_PerlIO_seek
657                     Perl_PerlIO_set_cnt
658                     Perl_PerlIO_set_ptrcnt
659                     Perl_PerlIO_setlinebuf
660                     Perl_PerlIO_stderr
661                     Perl_PerlIO_stdin
662                     Perl_PerlIO_stdout
663                     Perl_PerlIO_tell
664                     Perl_PerlIO_unread
665                     Perl_PerlIO_write
666 );
667 if ($ARGS{PLATFORM} eq 'netware') {
668     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
669 }
670
671 # Export the symbols that make up the PerlIO abstraction, regardless
672 # of its implementation - read from a file
673 push @syms, 'perlio.sym';
674
675 # PerlIO with layers - export implementation
676 try_symbols(@layer_syms, 'perlsio_binmode');
677
678
679 unless ($define{'USE_QUADMATH'}) {
680   ++$skip{Perl_quadmath_format_needed};
681   ++$skip{Perl_quadmath_format_single};
682 }
683
684 unless ($Config{d_mbrlen}) {
685     ++$skip{PL_mbrlen_ps};
686 }
687
688 unless ($Config{d_mbrtowc}) {
689     ++$skip{PL_mbrtowc_ps};
690 }
691
692 unless ($Config{d_wcrtomb}) {
693     ++$skip{PL_wcrtomb_ps};
694 }
695
696 ###############################################################################
697
698 # At this point all skip lists should be completed, as we are about to test
699 # many symbols against them.
700
701 {
702     my %seen;
703     my ($embed) = setup_embed($ARGS{TARG_DIR});
704     my $excludedre = $define{'NO_MATHOMS'} ? qr/[emib]/ : qr/[emi]/;
705
706     foreach (@$embed) {
707         my ($flags, $retval, $func, @args) = @$_;
708         next unless $func;
709         if (($flags =~ /[AXC]/ && $flags !~ $excludedre)
710             || (!$define{'NO_MATHOMS'} && $flags =~ /b/))
711         {
712             # public API, so export
713
714             # If a function is defined twice, for example before and after
715             # an #else, only export its name once. Important to do this test
716             # within the block, as the *first* definition may have flags which
717             # mean "don't export"
718             next if $seen{$func}++;
719             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
720             $func = "Perl_$func" if ($flags =~ /[pX]/ && $func !~ /^Perl_/);
721             ++$export{$func} unless exists $skip{$func};
722         }
723     }
724 }
725
726 foreach (@syms) {
727     my $syms = $ARGS{TARG_DIR} . $_;
728     open my $global, '<', $syms or die "failed to open $syms: $!\n";
729     while (<$global>) {
730         next unless /^([A-Za-z].*)/;
731         my $symbol = "$1";
732         ++$export{$symbol} unless exists $skip{$symbol};
733     }
734 }
735
736 # variables
737
738 readvar('perlvars.h', \%export);
739 unless ($define{MULTIPLICITY}) {
740     readvar('intrpvar.h', \%export);
741 }
742
743 # Oddities from PerlIO
744 # All have alternate implementations in perlio.c, so always exist.
745 # Should they be considered to be part of the API?
746 try_symbols(qw(
747                     PerlIO_binmode
748                     PerlIO_getpos
749                     PerlIO_init
750                     PerlIO_setpos
751                     PerlIO_tmpfile
752              ));
753
754 if ($ARGS{PLATFORM} eq 'win32') {
755     try_symbols(qw(
756                     win32_free_childdir
757                     win32_free_childenv
758                     win32_get_childdir
759                     win32_get_childenv
760                     win32_spawnvp
761                     Perl_init_os_extras
762                     Perl_win32_init
763                     Perl_win32_term
764                     RunPerl
765                     win32_async_check
766                     win32_errno
767                     win32_environ
768                     win32_abort
769                     win32_fstat
770                     win32_stat
771                     win32_pipe
772                     win32_popen
773                     win32_pclose
774                     win32_rename
775                     win32_setmode
776                     win32_chsize
777                     win32_lseek
778                     win32_tell
779                     win32_dup
780                     win32_dup2
781                     win32_open
782                     win32_close
783                     win32_eof
784                     win32_isatty
785                     win32_read
786                     win32_write
787                     win32_mkdir
788                     win32_rmdir
789                     win32_chdir
790                     win32_flock
791                     win32_execv
792                     win32_execvp
793                     win32_htons
794                     win32_ntohs
795                     win32_htonl
796                     win32_ntohl
797                     win32_inet_addr
798                     win32_inet_ntoa
799                     win32_socket
800                     win32_bind
801                     win32_listen
802                     win32_accept
803                     win32_connect
804                     win32_send
805                     win32_sendto
806                     win32_recv
807                     win32_recvfrom
808                     win32_shutdown
809                     win32_closesocket
810                     win32_ioctlsocket
811                     win32_setsockopt
812                     win32_getsockopt
813                     win32_getpeername
814                     win32_getsockname
815                     win32_gethostname
816                     win32_gethostbyname
817                     win32_gethostbyaddr
818                     win32_getprotobyname
819                     win32_getprotobynumber
820                     win32_getservbyname
821                     win32_getservbyport
822                     win32_select
823                     win32_endhostent
824                     win32_endnetent
825                     win32_endprotoent
826                     win32_endservent
827                     win32_getnetent
828                     win32_getnetbyname
829                     win32_getnetbyaddr
830                     win32_getprotoent
831                     win32_getservent
832                     win32_sethostent
833                     win32_setnetent
834                     win32_setprotoent
835                     win32_setservent
836                     win32_getenv
837                     win32_putenv
838                     win32_perror
839                     win32_malloc
840                     win32_calloc
841                     win32_realloc
842                     win32_free
843                     win32_sleep
844                     win32_pause
845                     win32_times
846                     win32_access
847                     win32_alarm
848                     win32_chmod
849                     win32_open_osfhandle
850                     win32_get_osfhandle
851                     win32_ioctl
852                     win32_link
853                     win32_unlink
854                     win32_utime
855                     win32_gettimeofday
856                     win32_uname
857                     win32_wait
858                     win32_waitpid
859                     win32_kill
860                     win32_str_os_error
861                     win32_opendir
862                     win32_readdir
863                     win32_telldir
864                     win32_seekdir
865                     win32_rewinddir
866                     win32_closedir
867                     win32_longpath
868                     win32_ansipath
869                     win32_os_id
870                     win32_getpid
871                     win32_crypt
872                     win32_dynaload
873                     win32_clearenv
874                     win32_stdin
875                     win32_stdout
876                     win32_stderr
877                     win32_ferror
878                     win32_feof
879                     win32_strerror
880                     win32_fprintf
881                     win32_printf
882                     win32_vfprintf
883                     win32_vprintf
884                     win32_fread
885                     win32_fwrite
886                     win32_fopen
887                     win32_fdopen
888                     win32_freopen
889                     win32_fclose
890                     win32_fputs
891                     win32_fputc
892                     win32_ungetc
893                     win32_getc
894                     win32_fileno
895                     win32_clearerr
896                     win32_fflush
897                     win32_ftell
898                     win32_fseek
899                     win32_fgetpos
900                     win32_fsetpos
901                     win32_rewind
902                     win32_tmpfile
903                     win32_setbuf
904                     win32_setvbuf
905                     win32_flushall
906                     win32_fcloseall
907                     win32_fgets
908                     win32_gets
909                     win32_fgetc
910                     win32_putc
911                     win32_puts
912                     win32_getchar
913                     win32_putchar
914                     win32_symlink
915                     win32_lstat
916                     win32_readlink
917                  ));
918 }
919 elsif ($ARGS{PLATFORM} eq 'vms') {
920     try_symbols(qw(
921                       Perl_cando
922                       Perl_cando_by_name
923                       Perl_closedir
924                       Perl_csighandler_init
925                       Perl_do_rmdir
926                       Perl_fileify_dirspec
927                       Perl_fileify_dirspec_ts
928                       Perl_fileify_dirspec_utf8
929                       Perl_fileify_dirspec_utf8_ts
930                       Perl_flex_fstat
931                       Perl_flex_lstat
932                       Perl_flex_stat
933                       Perl_kill_file
934                       Perl_my_chdir
935                       Perl_my_chmod
936                       Perl_my_crypt
937                       Perl_my_endpwent
938                       Perl_my_fclose
939                       Perl_my_fdopen
940                       Perl_my_fgetname
941                       Perl_my_flush
942                       Perl_my_fwrite
943                       Perl_my_gconvert
944                       Perl_my_getenv
945                       Perl_my_getenv_len
946                       Perl_my_getpwnam
947                       Perl_my_getpwuid
948                       Perl_my_gmtime
949                       Perl_my_kill
950                       Perl_my_killpg
951                       Perl_my_localtime
952                       Perl_my_mkdir
953                       Perl_my_sigaction
954                       Perl_my_symlink
955                       Perl_my_time
956                       Perl_my_tmpfile
957                       Perl_my_trnlnm
958                       Perl_my_utime
959                       Perl_my_waitpid
960                       Perl_opendir
961                       Perl_pathify_dirspec
962                       Perl_pathify_dirspec_ts
963                       Perl_pathify_dirspec_utf8
964                       Perl_pathify_dirspec_utf8_ts
965                       Perl_readdir
966                       Perl_readdir_r
967                       Perl_rename
968                       Perl_rmscopy
969                       Perl_rmsexpand
970                       Perl_rmsexpand_ts
971                       Perl_rmsexpand_utf8
972                       Perl_rmsexpand_utf8_ts
973                       Perl_seekdir
974                       Perl_sig_to_vmscondition
975                       Perl_telldir
976                       Perl_tounixpath
977                       Perl_tounixpath_ts
978                       Perl_tounixpath_utf8
979                       Perl_tounixpath_utf8_ts
980                       Perl_tounixspec
981                       Perl_tounixspec_ts
982                       Perl_tounixspec_utf8
983                       Perl_tounixspec_utf8_ts
984                       Perl_tovmspath
985                       Perl_tovmspath_ts
986                       Perl_tovmspath_utf8
987                       Perl_tovmspath_utf8_ts
988                       Perl_tovmsspec
989                       Perl_tovmsspec_ts
990                       Perl_tovmsspec_utf8
991                       Perl_tovmsspec_utf8_ts
992                       Perl_trim_unixpath
993                       Perl_vms_case_tolerant
994                       Perl_vms_do_aexec
995                       Perl_vms_do_exec
996                       Perl_vms_image_init
997                       Perl_vms_realpath
998                       Perl_vmssetenv
999                       Perl_vmssetuserlnm
1000                       Perl_vmstrnenv
1001                       PerlIO_openn
1002                  ));
1003 }
1004 elsif ($ARGS{PLATFORM} eq 'os2') {
1005     try_symbols(qw(
1006                       ctermid
1007                       get_sysinfo
1008                       Perl_OS2_init
1009                       Perl_OS2_init3
1010                       Perl_OS2_term
1011                       OS2_Perl_data
1012                       dlopen
1013                       dlsym
1014                       dlerror
1015                       dlclose
1016                       dup2
1017                       dup
1018                       my_tmpfile
1019                       my_tmpnam
1020                       my_flock
1021                       my_rmdir
1022                       my_mkdir
1023                       my_getpwuid
1024                       my_getpwnam
1025                       my_getpwent
1026                       my_setpwent
1027                       my_endpwent
1028                       fork_with_resources
1029                       croak_with_os2error
1030                       setgrent
1031                       endgrent
1032                       getgrent
1033                       malloc_mutex
1034                       threads_mutex
1035                       nthreads
1036                       nthreads_cond
1037                       os2_cond_wait
1038                       os2_stat
1039                       os2_execname
1040                       async_mssleep
1041                       msCounter
1042                       InfoTable
1043                       pthread_join
1044                       pthread_create
1045                       pthread_detach
1046                       XS_Cwd_change_drive
1047                       XS_Cwd_current_drive
1048                       XS_Cwd_extLibpath
1049                       XS_Cwd_extLibpath_set
1050                       XS_Cwd_sys_abspath
1051                       XS_Cwd_sys_chdir
1052                       XS_Cwd_sys_cwd
1053                       XS_Cwd_sys_is_absolute
1054                       XS_Cwd_sys_is_relative
1055                       XS_Cwd_sys_is_rooted
1056                       XS_DynaLoader_mod2fname
1057                       XS_File__Copy_syscopy
1058                       Perl_Register_MQ
1059                       Perl_Deregister_MQ
1060                       Perl_Serve_Messages
1061                       Perl_Process_Messages
1062                       init_PMWIN_entries
1063                       PMWIN_entries
1064                       Perl_hab_GET
1065                       loadByOrdinal
1066                       pExtFCN
1067                       os2error
1068                       ResetWinError
1069                       CroakWinError
1070                       PL_do_undump
1071                  ));
1072 }
1073 elsif ($ARGS{PLATFORM} eq 'netware') {
1074     try_symbols(qw(
1075                         Perl_init_os_extras
1076                         Perl_nw5_init
1077                         RunPerl
1078                         AllocStdPerl
1079                         FreeStdPerl
1080                         do_spawn2
1081                         do_aspawn
1082                         nw_uname
1083                         nw_stdin
1084                         nw_stdout
1085                         nw_stderr
1086                         nw_feof
1087                         nw_ferror
1088                         nw_fopen
1089                         nw_fclose
1090                         nw_clearerr
1091                         nw_getc
1092                         nw_fgets
1093                         nw_fputc
1094                         nw_fputs
1095                         nw_fflush
1096                         nw_ungetc
1097                         nw_fileno
1098                         nw_fdopen
1099                         nw_freopen
1100                         nw_fread
1101                         nw_fwrite
1102                         nw_setbuf
1103                         nw_setvbuf
1104                         nw_vfprintf
1105                         nw_ftell
1106                         nw_fseek
1107                         nw_rewind
1108                         nw_tmpfile
1109                         nw_fgetpos
1110                         nw_fsetpos
1111                         nw_dup
1112                         nw_access
1113                         nw_chmod
1114                         nw_chsize
1115                         nw_close
1116                         nw_dup2
1117                         nw_flock
1118                         nw_isatty
1119                         nw_link
1120                         nw_lseek
1121                         nw_stat
1122                         nw_mktemp
1123                         nw_open
1124                         nw_read
1125                         nw_rename
1126                         nw_setmode
1127                         nw_unlink
1128                         nw_utime
1129                         nw_write
1130                         nw_chdir
1131                         nw_rmdir
1132                         nw_closedir
1133                         nw_opendir
1134                         nw_readdir
1135                         nw_rewinddir
1136                         nw_seekdir
1137                         nw_telldir
1138                         nw_htonl
1139                         nw_htons
1140                         nw_ntohl
1141                         nw_ntohs
1142                         nw_accept
1143                         nw_bind
1144                         nw_connect
1145                         nw_endhostent
1146                         nw_endnetent
1147                         nw_endprotoent
1148                         nw_endservent
1149                         nw_gethostbyaddr
1150                         nw_gethostbyname
1151                         nw_gethostent
1152                         nw_gethostname
1153                         nw_getnetbyaddr
1154                         nw_getnetbyname
1155                         nw_getnetent
1156                         nw_getpeername
1157                         nw_getprotobyname
1158                         nw_getprotobynumber
1159                         nw_getprotoent
1160                         nw_getservbyname
1161                         nw_getservbyport
1162                         nw_getservent
1163                         nw_getsockname
1164                         nw_getsockopt
1165                         nw_inet_addr
1166                         nw_listen
1167                         nw_socket
1168                         nw_recv
1169                         nw_recvfrom
1170                         nw_select
1171                         nw_send
1172                         nw_sendto
1173                         nw_sethostent
1174                         nw_setnetent
1175                         nw_setprotoent
1176                         nw_setservent
1177                         nw_setsockopt
1178                         nw_inet_ntoa
1179                         nw_shutdown
1180                         nw_crypt
1181                         nw_execvp
1182                         nw_kill
1183                         nw_Popen
1184                         nw_Pclose
1185                         nw_Pipe
1186                         nw_times
1187                         nw_waitpid
1188                         nw_getpid
1189                         nw_spawnvp
1190                         nw_os_id
1191                         nw_open_osfhandle
1192                         nw_get_osfhandle
1193                         nw_abort
1194                         nw_sleep
1195                         nw_wait
1196                         nw_dynaload
1197                         nw_strerror
1198                         fnFpSetMode
1199                         fnInsertHashListAddrs
1200                         fnGetHashListAddrs
1201                         Perl_deb
1202                         Perl_sv_setsv
1203                         Perl_sv_catsv
1204                         Perl_sv_catpvn
1205                         Perl_sv_2pv
1206                         nw_freeenviron
1207                         Remove_Thread_Ctx
1208                  ));
1209 }
1210
1211 # When added this code was only run for Win32 (and WinCE at the time)
1212 # Currently only Win32 links static extensions into the shared library.
1213 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1214 # list of dynamic extensions, and the rules to build them)
1215 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1216 # static extensions with -fPIC, but links them to perl, not libperl.so
1217 # The VMS build scripts don't yet implement static extensions at all.
1218
1219 if ($ARGS{PLATFORM} eq 'win32') {
1220     # records of type boot_module for statically linked modules (except Dynaloader)
1221     my $static_ext = $Config{static_ext} // "";
1222     $static_ext =~ s/\//__/g;
1223     $static_ext =~ s/\bDynaLoader\b//;
1224     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1225     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1226 }
1227
1228 if ($ARGS{PLATFORM} eq 'os2') {
1229     my (%mapped, @missing);
1230     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1231     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1232     close MAP or die 'Cannot close miniperl.map';
1233
1234     @missing = grep { !exists $mapped{$_} }
1235                     keys %export;
1236     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1237     delete $export{$_} foreach @missing;
1238 }
1239
1240 ###############################################################################
1241
1242 # Now all symbols should be defined because next we are going to output them.
1243
1244 # Start with platform specific headers:
1245
1246 if ($ARGS{PLATFORM} eq 'win32') {
1247     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1248         : "perl$Config{api_revision}$Config{api_version}";
1249     print "LIBRARY $dll\n";
1250     # The DESCRIPTION module definition file statement is not supported
1251     # by VC7 onwards.
1252     if ($ARGS{CCTYPE} eq 'GCC') {
1253         print "DESCRIPTION 'Perl interpreter'\n";
1254     }
1255     print "EXPORTS\n";
1256 }
1257 elsif ($ARGS{PLATFORM} eq 'os2') {
1258     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1259     $v .= '-thread' if $Config{archname} =~ /-thread/;
1260     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1261     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1262     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1263     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1264     print <<"---EOP---";
1265 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1266 $d
1267 STACKSIZE 32768
1268 CODE LOADONCALL
1269 DATA LOADONCALL NONSHARED MULTIPLE
1270 EXPORTS
1271 ---EOP---
1272 }
1273 elsif ($ARGS{PLATFORM} eq 'aix') {
1274     my $OSVER = `uname -v`;
1275     chop $OSVER;
1276     my $OSREL = `uname -r`;
1277     chop $OSREL;
1278     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1279         print "#! ..\n";
1280     } else {
1281         print "#!\n";
1282     }
1283 }
1284 elsif ($ARGS{PLATFORM} eq 'netware') {
1285         if ($ARGS{FILETYPE} eq 'def') {
1286         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1287         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1288         print "EXPORTS\n";
1289         }
1290 }
1291
1292 # Then the symbols
1293
1294 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1295 foreach my $symbol (@symbols) {
1296     if (PLATFORM eq 'win32') {
1297         # Remembering the origin file of each symbol is an alternative to PL_ matching
1298         if (substr($symbol, 0, 3) eq 'PL_') {
1299             print "\t$symbol DATA\n";
1300         }
1301         else {
1302             print "\t$symbol\n";
1303         }
1304     }
1305     elsif (PLATFORM eq 'os2') {
1306         printf qq(    %-31s \@%s\n),
1307           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1308         printf qq(    %-31s \@%s\n),
1309           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1310           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1311           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1312     }
1313     elsif (PLATFORM eq 'netware') {
1314         print "\t$symbol,\n";
1315     } else {
1316         print "$symbol\n";
1317     }
1318 }
1319
1320 # Then platform specific footers.
1321
1322 if ($ARGS{PLATFORM} eq 'os2') {
1323     print <<EOP;
1324     dll_perlmain=main
1325     fill_extLibpath
1326     dir_subst
1327     Perl_OS2_handler_install
1328
1329 ; LAST_ORDINAL=$sym_ord
1330 EOP
1331 }
1332
1333 1;