Untangle the fp value retrieval.
[perl.git] / makedef.pl
1 #./perl -w
2 #
3 # Create the export list for perl.
4 #
5 # Needed by WIN32 and OS/2 for creating perl.dll,
6 # and by AIX for creating libperl.a when -Duseshrplib is in effect,
7 # and by VMS for creating perlshr.exe.
8 #
9 # Reads from information stored in
10 #
11 #    %Config::Config (ie config.sh)
12 #    config.h
13 #    embed.fnc
14 #    globvar.sym
15 #    intrpvar.h
16 #    miniperl.map (on OS/2)
17 #    perl5.def    (on OS/2; this is the old version of the file being made)
18 #    perlio.sym
19 #    perlvars.h
20 #    regen/opcodes
21 #
22 # plus long lists of function names hard-coded directly in this script.
23 #
24 # Writes the result to STDOUT.
25 #
26 # Normally this script is invoked from a makefile (e.g. win32/Makefile),
27 # which redirects STDOUT to a suitable file, such as:
28 #
29 #    perl5.def   OS/2
30 #    perldll.def Windows
31 #    perl.exp    AIX
32 #    perl.imp    NetWare
33 #    makedef.lis VMS
34
35 BEGIN { unshift @INC, "lib" }
36 use Config;
37 use strict;
38
39 my %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
40
41 my %define;
42
43 my $fold;
44
45 sub process_cc_flags {
46     foreach (map {split /\s+/, $_} @_) {
47         $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
48     }
49 }
50
51 while (@ARGV) {
52     my $flag = shift;
53     if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
54         process_cc_flags($1);
55     } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
56         $ARGS{$1} = $2;
57     } elsif ($flag eq '--sort-fold') {
58         ++$fold;
59     }
60 }
61
62 require "$ARGS{TARG_DIR}regen/embed_lib.pl";
63
64 {
65     my @PLATFORM = qw(aix win32 wince os2 netware vms test);
66     my %PLATFORM;
67     @PLATFORM{@PLATFORM} = ();
68
69     die "PLATFORM undefined, must be one of: @PLATFORM\n"
70         unless defined $ARGS{PLATFORM};
71     die "PLATFORM must be one of: @PLATFORM\n"
72         unless exists $PLATFORM{$ARGS{PLATFORM}};
73 }
74
75 # Is the following guard strictly necessary? Added during refactoring
76 # to keep the same behaviour when merging other code into here.
77 process_cc_flags(@Config{qw(ccflags optimize)})
78     if $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'wince'
79     && $ARGS{PLATFORM} ne 'netware';
80
81 # Add the compile-time options that miniperl was built with to %define.
82 # On Win32 these are not the same options as perl itself will be built
83 # with since miniperl is built with a canned config (one of the win32/
84 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
85 # but they do include some #define's that are hard-coded in various
86 # source files and header files and don't include any BUILDOPT's that
87 # the user might have chosen to disable because the canned configs are
88 # minimal configs that don't include any of those options.
89
90 #don't use the host Perl's -V defines for the WinCE Perl
91 if($ARGS{PLATFORM} ne 'wince') {
92     my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
93     print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
94     $define{$_} = 1 foreach @options;
95 }
96
97 my %exportperlmalloc =
98     (
99        Perl_malloc              =>      "malloc",
100        Perl_mfree               =>      "free",
101        Perl_realloc             =>      "realloc",
102        Perl_calloc              =>      "calloc",
103     );
104
105 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
106
107 my $config_h = 'config.h';
108 open(CFG, '<', $config_h) || die "Cannot open $config_h: $!\n";
109 while (<CFG>) {
110     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
111                                            |SPRINTF_RETURNS_STRLEN
112                                            |KILL_BY_SIGPRC
113                                            |(?:PERL|USE|HAS)_\w+)\b/x;
114 }
115 close(CFG);
116
117 # perl.h logic duplication begins
118
119 if ($define{USE_ITHREADS}) {
120     if (!$define{MULTIPLICITY}) {
121         $define{MULTIPLICITY} = 1;
122     }
123 }
124
125 $define{PERL_IMPLICIT_CONTEXT} ||=
126     $define{USE_ITHREADS} ||
127     $define{MULTIPLICITY} ;
128
129 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
130     $define{USE_REENTRANT_API} = 1;
131 }
132
133 # perl.h logic duplication ends
134
135 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
136      unless $ARGS{PLATFORM} eq 'test';
137
138 my $sym_ord = 0;
139 my %ordinal;
140
141 if ($ARGS{PLATFORM} eq 'os2') {
142     if (open my $fh, '<', 'perl5.def') {
143       while (<$fh>) {
144         last if /^\s*EXPORTS\b/;
145       }
146       while (<$fh>) {
147         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
148         # This allows skipping ordinals which were used in older versions
149         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
150       }
151       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
152     }
153 }
154
155 my %skip;
156 # All platforms export boot_DynaLoader unconditionally.
157 my %export = ( boot_DynaLoader => 1 );
158
159 sub try_symbols {
160     foreach my $symbol (@_) {
161         ++$export{$symbol} unless exists $skip{$symbol};
162     }
163 }
164
165 sub readvar {
166     # $hash is the hash that we're adding to. For one of our callers, it will
167     # actually be the skip hash but that doesn't affect the intent of what
168     # we're doing, as in that case we skip adding something to the skip hash
169     # for the second time.
170
171     my $file = $ARGS{TARG_DIR} . shift;
172     my $hash = shift;
173     my $proc = shift;
174     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
175
176     while (<$vars>) {
177         # All symbols have a Perl_ prefix because that's what embed.h sticks
178         # in front of them.  The A?I?S?C? is strictly speaking wrong.
179         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
180
181         my $var = "PL_$3";
182         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
183         ++$hash->{$symbol} unless exists $skip{$var};
184     }
185 }
186
187 if ($ARGS{PLATFORM} ne 'os2') {
188     ++$skip{$_} foreach qw(
189                      PL_cryptseen
190                      PL_opsave
191                      Perl_GetVars
192                      Perl_dump_fds
193                      Perl_my_bcopy
194                      Perl_my_bzero
195                      Perl_my_chsize
196                      Perl_my_htonl
197                      Perl_my_memcmp
198                      Perl_my_memset
199                      Perl_my_ntohl
200                      Perl_my_swap
201                          );
202     if ($ARGS{PLATFORM} eq 'vms') {
203         ++$skip{PL_statusvalue_posix};
204         # This is a wrapper if we have symlink, not a replacement
205         # if we don't.
206         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
207     } else {
208         ++$skip{PL_statusvalue_vms};
209         if ($ARGS{PLATFORM} ne 'aix') {
210             ++$skip{$_} foreach qw(
211                                 PL_DBcv
212                                 PL_generation
213                                 PL_lastgotoprobe
214                                 PL_modcount
215                                 PL_timesbuf
216                                 main
217                                  );
218         }
219     }
220 }
221
222 if ($ARGS{PLATFORM} ne 'vms') {
223     # VMS does its own thing for these symbols.
224     ++$skip{$_} foreach qw(
225                         PL_sig_handlers_initted
226                         PL_sig_ignoring
227                         PL_sig_defaulting
228                          );
229     if ($ARGS{PLATFORM} ne 'win32') {
230         ++$skip{$_} foreach qw(
231                             Perl_do_spawn
232                             Perl_do_spawn_nowait
233                             Perl_do_aspawn
234                              );
235     }
236 }
237
238 if ($ARGS{PLATFORM} ne 'win32') {
239     ++$skip{$_} foreach qw(
240                     Perl_my_setlocale
241                          );
242 }
243
244 unless ($define{UNLINK_ALL_VERSIONS}) {
245     ++$skip{Perl_unlnk};
246 }
247
248 unless ($define{'DEBUGGING'}) {
249     ++$skip{$_} foreach qw(
250                     Perl_debop
251                     Perl_debprofdump
252                     Perl_debstack
253                     Perl_debstackptrs
254                     Perl_pad_sv
255                     Perl_pad_setsv
256                     Perl_hv_assert
257                     PL_watchaddr
258                     PL_watchok
259                     PL_watch_pvx
260                          );
261 }
262
263 if ($define{'PERL_IMPLICIT_SYS'}) {
264     ++$skip{$_} foreach qw(
265                     Perl_my_popen
266                     Perl_my_pclose
267                          );
268     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
269     ++$export{perl_clone_host} if $define{USE_ITHREADS};
270 }
271 else {
272     ++$skip{$_} foreach qw(
273                     PL_Mem
274                     PL_MemShared
275                     PL_MemParse
276                     PL_Env
277                     PL_StdIO
278                     PL_LIO
279                     PL_Dir
280                     PL_Sock
281                     PL_Proc
282                     perl_alloc_using
283                     perl_clone_using
284                          );
285 }
286
287 unless ($define{'PERL_OLD_COPY_ON_WRITE'}
288      || $define{'PERL_NEW_COPY_ON_WRITE'}) {
289     ++$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_check_mutex
362                     PL_op_mutex
363                     PL_regex_pad
364                     PL_regex_padav
365                     PL_dollarzero_mutex
366                     PL_hints_mutex
367                     PL_my_ctx_mutex
368                     PL_perlio_mutex
369                     PL_stashpad
370                     PL_stashpadix
371                     PL_stashpadmax
372                     Perl_alloccopstash
373                     Perl_allocfilegv
374                     Perl_clone_params_del
375                     Perl_clone_params_new
376                     Perl_parser_dup
377                     Perl_dirp_dup
378                     Perl_cx_dup
379                     Perl_si_dup
380                     Perl_any_dup
381                     Perl_ss_dup
382                     Perl_fp_dup
383                     Perl_gp_dup
384                     Perl_he_dup
385                     Perl_mg_dup
386                     Perl_re_dup_guts
387                     Perl_sv_dup
388                     Perl_sv_dup_inc
389                     Perl_rvpv_dup
390                     Perl_hek_dup
391                     Perl_sys_intern_dup
392                     perl_clone
393                     perl_clone_using
394                     Perl_stashpv_hvname_match
395                     Perl_regdupe_internal
396                     Perl_newPADOP
397                          );
398 }
399
400 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
401     ++$skip{$_} foreach qw(
402                     PL_my_cxt_index
403                     PL_my_cxt_list
404                     PL_my_cxt_size
405                     PL_my_cxt_keys
406                     Perl_croak_nocontext
407                     Perl_die_nocontext
408                     Perl_deb_nocontext
409                     Perl_form_nocontext
410                     Perl_load_module_nocontext
411                     Perl_mess_nocontext
412                     Perl_warn_nocontext
413                     Perl_warner_nocontext
414                     Perl_newSVpvf_nocontext
415                     Perl_sv_catpvf_nocontext
416                     Perl_sv_setpvf_nocontext
417                     Perl_sv_catpvf_mg_nocontext
418                     Perl_sv_setpvf_mg_nocontext
419                     Perl_my_cxt_init
420                     Perl_my_cxt_index
421                          );
422 }
423
424 unless ($define{'PERL_NEED_APPCTX'}) {
425     ++$skip{PL_appctx};
426 }
427
428 unless ($define{'PERL_NEED_TIMESBASE'}) {
429     ++$skip{PL_timesbase};
430 }
431
432 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
433     ++$skip{PL_sv_serial};
434 }
435
436 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
437     ++$skip{PL_dumper_fd};
438 }
439
440 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
441     ++$skip{Perl_gv_SVadd};
442 }
443
444 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
445     ++$skip{Perl_my_sprintf};
446 }
447
448 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
449     ++$skip{PL_pidstatus};
450 }
451
452 unless ($define{'PERL_TRACK_MEMPOOL'}) {
453     ++$skip{PL_memory_debug_header};
454 }
455
456 unless ($define{'MULTIPLICITY'}) {
457     ++$skip{$_} foreach qw(
458                     PL_interp_size
459                     PL_interp_size_5_18_0
460                          );
461 }
462
463 unless ($define{'PERL_GLOBAL_STRUCT'}) {
464     ++$skip{PL_global_struct_size};
465 }
466
467 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
468     ++$skip{$_} foreach qw(
469                     PL_my_cxt_keys
470                     Perl_my_cxt_index
471                          );
472 }
473
474 unless ($define{HAS_MMAP}) {
475     ++$skip{PL_mmap_page_size};
476 }
477
478 if ($define{HAS_SIGACTION}) {
479     ++$skip{PL_sig_trapped};
480
481     if ($ARGS{PLATFORM} eq 'vms') {
482         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
483         ++$skip{PL_sig_ignoring};
484         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
485     }
486 }
487
488 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
489     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
490     ++$skip{Perl_csighandler_init};
491     ++$skip{Perl_my_kill};
492     ++$skip{Perl_sig_to_vmscondition};
493     ++$skip{PL_sig_defaulting};
494     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
495 }
496
497 unless ($define{USE_LOCALE_COLLATE}) {
498     ++$skip{$_} foreach qw(
499                     PL_collation_ix
500                     PL_collation_name
501                     PL_collation_standard
502                     PL_collxfrm_base
503                     PL_collxfrm_mult
504                     Perl_sv_collxfrm
505                     Perl_sv_collxfrm_flags
506                          );
507 }
508
509 unless ($define{USE_LOCALE_NUMERIC}) {
510     ++$skip{$_} foreach qw(
511                     PL_numeric_local
512                     PL_numeric_name
513                     PL_numeric_radix_sv
514                     PL_numeric_standard
515                          );
516 }
517
518 unless ($define{'USE_C_BACKTRACE'}) {
519     ++$skip{Perl_get_c_backtrace_dump};
520     ++$skip{Perl_dump_c_backtrace};
521 }
522
523 unless ($define{HAVE_INTERP_INTERN}) {
524     ++$skip{$_} foreach qw(
525                     Perl_sys_intern_clear
526                     Perl_sys_intern_dup
527                     Perl_sys_intern_init
528                     PL_sys_intern
529                          );
530 }
531
532 if ($define{HAS_SIGNBIT}) {
533     ++$skip{Perl_signbit};
534 }
535
536 if ($define{'PERL_GLOBAL_STRUCT'}) {
537     readvar('perlvars.h', \%skip);
538     # This seems like the least ugly way to cope with the fact that PL_sh_path
539     # is mentioned in perlvar.h and globvar.sym, and always exported.
540     delete $skip{PL_sh_path};
541     ++$export{Perl_GetVars};
542     try_symbols(qw(PL_Vars PL_VarsPtr))
543       unless $ARGS{CCTYPE} eq 'GCC' || $define{PERL_GLOBAL_STRUCT_PRIVATE};
544 } else {
545     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
546 }
547
548 ++$skip{PL_op_exec_cnt}
549     unless $define{PERL_TRACE_OPS};
550
551 # functions from *.sym files
552
553 my @syms = qw(globvar.sym);
554
555 # Symbols that are the public face of the PerlIO layers implementation
556 # These are in _addition to_ the public face of the abstraction
557 # and need to be exported to allow XS modules to implement layers
558 my @layer_syms = qw(
559                     PerlIOBase_binmode
560                     PerlIOBase_clearerr
561                     PerlIOBase_close
562                     PerlIOBase_dup
563                     PerlIOBase_eof
564                     PerlIOBase_error
565                     PerlIOBase_fileno
566                     PerlIOBase_open
567                     PerlIOBase_noop_fail
568                     PerlIOBase_noop_ok
569                     PerlIOBase_popped
570                     PerlIOBase_pushed
571                     PerlIOBase_read
572                     PerlIOBase_setlinebuf
573                     PerlIOBase_unread
574                     PerlIOBuf_bufsiz
575                     PerlIOBuf_close
576                     PerlIOBuf_dup
577                     PerlIOBuf_fill
578                     PerlIOBuf_flush
579                     PerlIOBuf_get_base
580                     PerlIOBuf_get_cnt
581                     PerlIOBuf_get_ptr
582                     PerlIOBuf_open
583                     PerlIOBuf_popped
584                     PerlIOBuf_pushed
585                     PerlIOBuf_read
586                     PerlIOBuf_seek
587                     PerlIOBuf_set_ptrcnt
588                     PerlIOBuf_tell
589                     PerlIOBuf_unread
590                     PerlIOBuf_write
591                     PerlIO_allocate
592                     PerlIO_apply_layera
593                     PerlIO_apply_layers
594                     PerlIO_arg_fetch
595                     PerlIO_debug
596                     PerlIO_define_layer
597                     PerlIO_find_layer
598                     PerlIO_isutf8
599                     PerlIO_layer_fetch
600                     PerlIO_list_alloc
601                     PerlIO_list_free
602                     PerlIO_modestr
603                     PerlIO_parse_layers
604                     PerlIO_pending
605                     PerlIO_perlio
606                     PerlIO_pop
607                     PerlIO_push
608                     PerlIO_sv_dup
609                     Perl_PerlIO_clearerr
610                     Perl_PerlIO_close
611                     Perl_PerlIO_context_layers
612                     Perl_PerlIO_eof
613                     Perl_PerlIO_error
614                     Perl_PerlIO_fileno
615                     Perl_PerlIO_fill
616                     Perl_PerlIO_flush
617                     Perl_PerlIO_get_base
618                     Perl_PerlIO_get_bufsiz
619                     Perl_PerlIO_get_cnt
620                     Perl_PerlIO_get_ptr
621                     Perl_PerlIO_read
622                     Perl_PerlIO_seek
623                     Perl_PerlIO_set_cnt
624                     Perl_PerlIO_set_ptrcnt
625                     Perl_PerlIO_setlinebuf
626                     Perl_PerlIO_stderr
627                     Perl_PerlIO_stdin
628                     Perl_PerlIO_stdout
629                     Perl_PerlIO_tell
630                     Perl_PerlIO_unread
631                     Perl_PerlIO_write
632 );
633 if ($ARGS{PLATFORM} eq 'netware') {
634     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
635 }
636
637 if ($define{'USE_PERLIO'}) {
638     # Export the symbols that make up the PerlIO abstraction, regardless
639     # of its implementation - read from a file
640     push @syms, 'perlio.sym';
641
642     # PerlIO with layers - export implementation
643     try_symbols(@layer_syms, 'perlsio_binmode');
644 } else {
645         # -Uuseperlio
646         # Skip the PerlIO layer symbols - although
647         # nothing should have exported them anyway.
648         ++$skip{$_} foreach @layer_syms;
649         ++$skip{$_} foreach qw(
650                         perlsio_binmode
651                         PL_def_layerlist
652                         PL_known_layers
653                         PL_perlio
654                         PL_perlio_debug_fd
655                         PL_perlio_fd_refcnt
656                         PL_perlio_fd_refcnt_size
657                         PL_perlio_mutex
658                              );
659
660         # Also do NOT add abstraction symbols from $perlio_sym
661         # abstraction is done as #define to stdio
662         # Remaining remnants that _may_ be functions are handled below.
663 }
664
665 ###############################################################################
666
667 # At this point all skip lists should be completed, as we are about to test
668 # many symbols against them.
669
670 {
671     my %seen;
672     my ($embed) = setup_embed($ARGS{TARG_DIR});
673
674     foreach (@$embed) {
675         my ($flags, $retval, $func, @args) = @$_;
676         next unless $func;
677         if ($flags =~ /[AX]/ && $flags !~ /[xmi]/ || $flags =~ /b/) {
678             # public API, so export
679
680             # If a function is defined twice, for example before and after
681             # an #else, only export its name once. Important to do this test
682             # within the block, as the *first* definition may have flags which
683             # mean "don't export"
684             next if $seen{$func}++;
685             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
686             $func = "Perl_$func" if ($flags =~ /[pbX]/ && $func !~ /^Perl_/); 
687             ++$export{$func} unless exists $skip{$func};
688         }
689     }
690 }
691
692 foreach (@syms) {
693     my $syms = $ARGS{TARG_DIR} . $_;
694     open my $global, '<', $syms or die "failed to open $syms: $!\n";
695     # Functions already have a Perl_ prefix
696     # Variables need a PL_ prefix
697     my $prefix = $syms =~ /var\.sym$/i ? 'PL_' : '';
698     while (<$global>) {
699         next unless /^([A-Za-z].*)/;
700         my $symbol = "$prefix$1";
701         ++$export{$symbol} unless exists $skip{$symbol};
702     }
703 }
704
705 # variables
706
707 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
708     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
709     # XXX AIX seems to want the perlvars.h symbols, for some reason
710     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
711         readvar('perlvars.h', \%export);
712     }
713 }
714 else {
715     unless ($define{'PERL_GLOBAL_STRUCT'}) {
716         readvar('perlvars.h', \%export);
717     }
718     unless ($define{MULTIPLICITY}) {
719         readvar('intrpvar.h', \%export);
720     }
721 }
722
723 # Oddities from PerlIO
724 # All have alternate implementations in perlio.c, so always exist.
725 # Should they be considered to be part of the API?
726 try_symbols(qw(
727                     PerlIO_binmode
728                     PerlIO_getpos
729                     PerlIO_init
730                     PerlIO_setpos
731                     PerlIO_tmpfile
732              ));
733
734 if ($ARGS{PLATFORM} eq 'win32') {
735     try_symbols(qw(
736                                  win32_free_childdir
737                                  win32_free_childenv
738                                  win32_get_childdir
739                                  win32_get_childenv
740                                  win32_spawnvp
741                  ));
742 }
743
744 if ($ARGS{PLATFORM} eq 'wince') {
745     ++$skip{'win32_isatty'}; # commit 4342f4d6df is win32-only
746 }
747
748 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
749     try_symbols(qw(
750                             Perl_init_os_extras
751                             Perl_thread_create
752                             Perl_win32_init
753                             Perl_win32_term
754                             RunPerl
755                             win32_async_check
756                             win32_errno
757                             win32_environ
758                             win32_abort
759                             win32_fstat
760                             win32_stat
761                             win32_pipe
762                             win32_popen
763                             win32_pclose
764                             win32_rename
765                             win32_setmode
766                             win32_chsize
767                             win32_lseek
768                             win32_tell
769                             win32_dup
770                             win32_dup2
771                             win32_open
772                             win32_close
773                             win32_eof
774                             win32_isatty
775                             win32_read
776                             win32_write
777                             win32_mkdir
778                             win32_rmdir
779                             win32_chdir
780                             win32_flock
781                             win32_execv
782                             win32_execvp
783                             win32_htons
784                             win32_ntohs
785                             win32_htonl
786                             win32_ntohl
787                             win32_inet_addr
788                             win32_inet_ntoa
789                             win32_socket
790                             win32_bind
791                             win32_listen
792                             win32_accept
793                             win32_connect
794                             win32_send
795                             win32_sendto
796                             win32_recv
797                             win32_recvfrom
798                             win32_shutdown
799                             win32_closesocket
800                             win32_ioctlsocket
801                             win32_setsockopt
802                             win32_getsockopt
803                             win32_getpeername
804                             win32_getsockname
805                             win32_gethostname
806                             win32_gethostbyname
807                             win32_gethostbyaddr
808                             win32_getprotobyname
809                             win32_getprotobynumber
810                             win32_getservbyname
811                             win32_getservbyport
812                             win32_select
813                             win32_endhostent
814                             win32_endnetent
815                             win32_endprotoent
816                             win32_endservent
817                             win32_getnetent
818                             win32_getnetbyname
819                             win32_getnetbyaddr
820                             win32_getprotoent
821                             win32_getservent
822                             win32_sethostent
823                             win32_setnetent
824                             win32_setprotoent
825                             win32_setservent
826                             win32_getenv
827                             win32_putenv
828                             win32_perror
829                             win32_malloc
830                             win32_calloc
831                             win32_realloc
832                             win32_free
833                             win32_sleep
834                             win32_times
835                             win32_access
836                             win32_alarm
837                             win32_chmod
838                             win32_open_osfhandle
839                             win32_get_osfhandle
840                             win32_ioctl
841                             win32_link
842                             win32_unlink
843                             win32_utime
844                             win32_gettimeofday
845                             win32_uname
846                             win32_wait
847                             win32_waitpid
848                             win32_kill
849                             win32_str_os_error
850                             win32_opendir
851                             win32_readdir
852                             win32_telldir
853                             win32_seekdir
854                             win32_rewinddir
855                             win32_closedir
856                             win32_longpath
857                             win32_ansipath
858                             win32_os_id
859                             win32_getpid
860                             win32_crypt
861                             win32_dynaload
862                             win32_clearenv
863                             win32_stdin
864                             win32_stdout
865                             win32_stderr
866                             win32_ferror
867                             win32_feof
868                             win32_strerror
869                             win32_fprintf
870                             win32_printf
871                             win32_vfprintf
872                             win32_vprintf
873                             win32_fread
874                             win32_fwrite
875                             win32_fopen
876                             win32_fdopen
877                             win32_freopen
878                             win32_fclose
879                             win32_fputs
880                             win32_fputc
881                             win32_ungetc
882                             win32_getc
883                             win32_fileno
884                             win32_clearerr
885                             win32_fflush
886                             win32_ftell
887                             win32_fseek
888                             win32_fgetpos
889                             win32_fsetpos
890                             win32_rewind
891                             win32_tmpfile
892                             win32_setbuf
893                             win32_setvbuf
894                             win32_flushall
895                             win32_fcloseall
896                             win32_fgets
897                             win32_gets
898                             win32_fgetc
899                             win32_putc
900                             win32_puts
901                             win32_getchar
902                             win32_putchar
903                  ));
904 }
905 elsif ($ARGS{PLATFORM} eq 'vms') {
906     try_symbols(qw(
907                       Perl_cando
908                       Perl_cando_by_name
909                       Perl_closedir
910                       Perl_csighandler_init
911                       Perl_do_rmdir
912                       Perl_fileify_dirspec
913                       Perl_fileify_dirspec_ts
914                       Perl_fileify_dirspec_utf8
915                       Perl_fileify_dirspec_utf8_ts
916                       Perl_flex_fstat
917                       Perl_flex_lstat
918                       Perl_flex_stat
919                       Perl_kill_file
920                       Perl_my_chdir
921                       Perl_my_chmod
922                       Perl_my_crypt
923                       Perl_my_endpwent
924                       Perl_my_fclose
925                       Perl_my_fdopen
926                       Perl_my_fgetname
927                       Perl_my_flush
928                       Perl_my_fwrite
929                       Perl_my_gconvert
930                       Perl_my_getenv
931                       Perl_my_getenv_len
932                       Perl_my_getlogin
933                       Perl_my_getpwnam
934                       Perl_my_getpwuid
935                       Perl_my_gmtime
936                       Perl_my_kill
937                       Perl_my_localtime
938                       Perl_my_mkdir
939                       Perl_my_sigaction
940                       Perl_my_symlink
941                       Perl_my_time
942                       Perl_my_tmpfile
943                       Perl_my_trnlnm
944                       Perl_my_utime
945                       Perl_my_waitpid
946                       Perl_opendir
947                       Perl_pathify_dirspec
948                       Perl_pathify_dirspec_ts
949                       Perl_pathify_dirspec_utf8
950                       Perl_pathify_dirspec_utf8_ts
951                       Perl_readdir
952                       Perl_readdir_r
953                       Perl_rename
954                       Perl_rmscopy
955                       Perl_rmsexpand
956                       Perl_rmsexpand_ts
957                       Perl_rmsexpand_utf8
958                       Perl_rmsexpand_utf8_ts
959                       Perl_seekdir
960                       Perl_sig_to_vmscondition
961                       Perl_telldir
962                       Perl_tounixpath
963                       Perl_tounixpath_ts
964                       Perl_tounixpath_utf8
965                       Perl_tounixpath_utf8_ts
966                       Perl_tounixspec
967                       Perl_tounixspec_ts
968                       Perl_tounixspec_utf8
969                       Perl_tounixspec_utf8_ts
970                       Perl_tovmspath
971                       Perl_tovmspath_ts
972                       Perl_tovmspath_utf8
973                       Perl_tovmspath_utf8_ts
974                       Perl_tovmsspec
975                       Perl_tovmsspec_ts
976                       Perl_tovmsspec_utf8
977                       Perl_tovmsspec_utf8_ts
978                       Perl_trim_unixpath
979                       Perl_vms_case_tolerant
980                       Perl_vms_do_aexec
981                       Perl_vms_do_exec
982                       Perl_vms_image_init
983                       Perl_vms_realpath
984                       Perl_vmssetenv
985                       Perl_vmssetuserlnm
986                       Perl_vmstrnenv
987                       PerlIO_openn
988                  ));
989 }
990 elsif ($ARGS{PLATFORM} eq 'os2') {
991     try_symbols(qw(
992                       ctermid
993                       get_sysinfo
994                       Perl_OS2_init
995                       Perl_OS2_init3
996                       Perl_OS2_term
997                       OS2_Perl_data
998                       dlopen
999                       dlsym
1000                       dlerror
1001                       dlclose
1002                       dup2
1003                       dup
1004                       my_tmpfile
1005                       my_tmpnam
1006                       my_flock
1007                       my_rmdir
1008                       my_mkdir
1009                       my_getpwuid
1010                       my_getpwnam
1011                       my_getpwent
1012                       my_setpwent
1013                       my_endpwent
1014                       fork_with_resources
1015                       croak_with_os2error
1016                       setgrent
1017                       endgrent
1018                       getgrent
1019                       malloc_mutex
1020                       threads_mutex
1021                       nthreads
1022                       nthreads_cond
1023                       os2_cond_wait
1024                       os2_stat
1025                       os2_execname
1026                       async_mssleep
1027                       msCounter
1028                       InfoTable
1029                       pthread_join
1030                       pthread_create
1031                       pthread_detach
1032                       XS_Cwd_change_drive
1033                       XS_Cwd_current_drive
1034                       XS_Cwd_extLibpath
1035                       XS_Cwd_extLibpath_set
1036                       XS_Cwd_sys_abspath
1037                       XS_Cwd_sys_chdir
1038                       XS_Cwd_sys_cwd
1039                       XS_Cwd_sys_is_absolute
1040                       XS_Cwd_sys_is_relative
1041                       XS_Cwd_sys_is_rooted
1042                       XS_DynaLoader_mod2fname
1043                       XS_File__Copy_syscopy
1044                       Perl_Register_MQ
1045                       Perl_Deregister_MQ
1046                       Perl_Serve_Messages
1047                       Perl_Process_Messages
1048                       init_PMWIN_entries
1049                       PMWIN_entries
1050                       Perl_hab_GET
1051                       loadByOrdinal
1052                       pExtFCN
1053                       os2error
1054                       ResetWinError
1055                       CroakWinError
1056                       PL_do_undump
1057                  ));
1058 }
1059 elsif ($ARGS{PLATFORM} eq 'netware') {
1060     try_symbols(qw(
1061                         Perl_init_os_extras
1062                         Perl_thread_create
1063                         Perl_nw5_init
1064                         RunPerl
1065                         AllocStdPerl
1066                         FreeStdPerl
1067                         do_spawn2
1068                         do_aspawn
1069                         nw_uname
1070                         nw_stdin
1071                         nw_stdout
1072                         nw_stderr
1073                         nw_feof
1074                         nw_ferror
1075                         nw_fopen
1076                         nw_fclose
1077                         nw_clearerr
1078                         nw_getc
1079                         nw_fgets
1080                         nw_fputc
1081                         nw_fputs
1082                         nw_fflush
1083                         nw_ungetc
1084                         nw_fileno
1085                         nw_fdopen
1086                         nw_freopen
1087                         nw_fread
1088                         nw_fwrite
1089                         nw_setbuf
1090                         nw_setvbuf
1091                         nw_vfprintf
1092                         nw_ftell
1093                         nw_fseek
1094                         nw_rewind
1095                         nw_tmpfile
1096                         nw_fgetpos
1097                         nw_fsetpos
1098                         nw_dup
1099                         nw_access
1100                         nw_chmod
1101                         nw_chsize
1102                         nw_close
1103                         nw_dup2
1104                         nw_flock
1105                         nw_isatty
1106                         nw_link
1107                         nw_lseek
1108                         nw_stat
1109                         nw_mktemp
1110                         nw_open
1111                         nw_read
1112                         nw_rename
1113                         nw_setmode
1114                         nw_unlink
1115                         nw_utime
1116                         nw_write
1117                         nw_chdir
1118                         nw_rmdir
1119                         nw_closedir
1120                         nw_opendir
1121                         nw_readdir
1122                         nw_rewinddir
1123                         nw_seekdir
1124                         nw_telldir
1125                         nw_htonl
1126                         nw_htons
1127                         nw_ntohl
1128                         nw_ntohs
1129                         nw_accept
1130                         nw_bind
1131                         nw_connect
1132                         nw_endhostent
1133                         nw_endnetent
1134                         nw_endprotoent
1135                         nw_endservent
1136                         nw_gethostbyaddr
1137                         nw_gethostbyname
1138                         nw_gethostent
1139                         nw_gethostname
1140                         nw_getnetbyaddr
1141                         nw_getnetbyname
1142                         nw_getnetent
1143                         nw_getpeername
1144                         nw_getprotobyname
1145                         nw_getprotobynumber
1146                         nw_getprotoent
1147                         nw_getservbyname
1148                         nw_getservbyport
1149                         nw_getservent
1150                         nw_getsockname
1151                         nw_getsockopt
1152                         nw_inet_addr
1153                         nw_listen
1154                         nw_socket
1155                         nw_recv
1156                         nw_recvfrom
1157                         nw_select
1158                         nw_send
1159                         nw_sendto
1160                         nw_sethostent
1161                         nw_setnetent
1162                         nw_setprotoent
1163                         nw_setservent
1164                         nw_setsockopt
1165                         nw_inet_ntoa
1166                         nw_shutdown
1167                         nw_crypt
1168                         nw_execvp
1169                         nw_kill
1170                         nw_Popen
1171                         nw_Pclose
1172                         nw_Pipe
1173                         nw_times
1174                         nw_waitpid
1175                         nw_getpid
1176                         nw_spawnvp
1177                         nw_os_id
1178                         nw_open_osfhandle
1179                         nw_get_osfhandle
1180                         nw_abort
1181                         nw_sleep
1182                         nw_wait
1183                         nw_dynaload
1184                         nw_strerror
1185                         fnFpSetMode
1186                         fnInsertHashListAddrs
1187                         fnGetHashListAddrs
1188                         Perl_deb
1189                         Perl_sv_setsv
1190                         Perl_sv_catsv
1191                         Perl_sv_catpvn
1192                         Perl_sv_2pv
1193                         nw_freeenviron
1194                         Remove_Thread_Ctx
1195                  ));
1196 }
1197
1198 # When added this code was only run for Win32 and WinCE
1199 # Currently only Win32 links static extensions into the shared library.
1200 # The WinCE makefile doesn't appear to support static extensions, so this code
1201 # can't have any effect there.
1202 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1203 # list of dynamic extensions, and the rules to build them)
1204 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1205 # static extensions with -fPIC, but links them to perl, not libperl.so
1206 # The VMS build scripts don't yet implement static extensions at all.
1207
1208 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1209     # records of type boot_module for statically linked modules (except Dynaloader)
1210     my $static_ext = $Config{static_ext} // "";
1211     $static_ext =~ s/\//__/g;
1212     $static_ext =~ s/\bDynaLoader\b//;
1213     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1214     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1215 }
1216
1217 if ($ARGS{PLATFORM} eq 'os2') {
1218     my (%mapped, @missing);
1219     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1220     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1221     close MAP or die 'Cannot close miniperl.map';
1222
1223     @missing = grep { !exists $mapped{$_} }
1224                     keys %export;
1225     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1226     delete $export{$_} foreach @missing;
1227 }
1228
1229 ###############################################################################
1230
1231 # Now all symbols should be defined because next we are going to output them.
1232
1233 # Start with platform specific headers:
1234
1235 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1236     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1237         : "perl$Config{api_revision}$Config{api_version}";
1238     print "LIBRARY $dll\n";
1239     # The DESCRIPTION module definition file statement is not supported
1240     # by VC7 onwards.
1241     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1242         print "DESCRIPTION 'Perl interpreter'\n";
1243     }
1244     print "EXPORTS\n";
1245 }
1246 elsif ($ARGS{PLATFORM} eq 'os2') {
1247     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1248     $v .= '-thread' if $Config{archname} =~ /-thread/;
1249     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1250     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1251     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1252     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1253     print <<"---EOP---";
1254 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1255 $d
1256 STACKSIZE 32768
1257 CODE LOADONCALL
1258 DATA LOADONCALL NONSHARED MULTIPLE
1259 EXPORTS
1260 ---EOP---
1261 }
1262 elsif ($ARGS{PLATFORM} eq 'aix') {
1263     my $OSVER = `uname -v`;
1264     chop $OSVER;
1265     my $OSREL = `uname -r`;
1266     chop $OSREL;
1267     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1268         print "#! ..\n";
1269     } else {
1270         print "#!\n";
1271     }
1272 }
1273 elsif ($ARGS{PLATFORM} eq 'netware') {
1274         if ($ARGS{FILETYPE} eq 'def') {
1275         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1276         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1277         print "EXPORTS\n";
1278         }
1279 }
1280
1281 # Then the symbols
1282
1283 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1284 foreach my $symbol (@symbols) {
1285     if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1286         print "\t$symbol\n";
1287     }
1288     elsif ($ARGS{PLATFORM} eq 'os2') {
1289         printf qq(    %-31s \@%s\n),
1290           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1291         printf qq(    %-31s \@%s\n),
1292           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1293           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1294           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1295     }
1296     elsif ($ARGS{PLATFORM} eq 'netware') {
1297         print "\t$symbol,\n";
1298     } else {
1299         print "$symbol\n";
1300     }
1301 }
1302
1303 # Then platform specific footers.
1304
1305 if ($ARGS{PLATFORM} eq 'os2') {
1306     print <<EOP;
1307     dll_perlmain=main
1308     fill_extLibpath
1309     dir_subst
1310     Perl_OS2_handler_install
1311
1312 ; LAST_ORDINAL=$sym_ord
1313 EOP
1314 }
1315
1316 1;