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New COW mechanism
[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 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 my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
91 print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
92 $define{$_} = 1 foreach @options;
93
94 my %exportperlmalloc =
95     (
96        Perl_malloc              =>      "malloc",
97        Perl_mfree               =>      "free",
98        Perl_realloc             =>      "realloc",
99        Perl_calloc              =>      "calloc",
100     );
101
102 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
103
104 open(CFG, '<', 'config.h') || die "Cannot open config.h: $!\n";
105 while (<CFG>) {
106     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
107                                            |SPRINTF_RETURNS_STRLEN
108                                            |KILL_BY_SIGPRC
109                                            |(?:PERL|USE|HAS)_\w+)\b/x;
110 }
111 close(CFG);
112
113 # perl.h logic duplication begins
114
115 if ($define{USE_ITHREADS}) {
116     if (!$define{MULTIPLICITY}) {
117         $define{MULTIPLICITY} = 1;
118     }
119 }
120
121 $define{PERL_IMPLICIT_CONTEXT} ||=
122     $define{USE_ITHREADS} ||
123     $define{MULTIPLICITY} ;
124
125 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
126     $define{USE_REENTRANT_API} = 1;
127 }
128
129 # perl.h logic duplication ends
130
131 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
132      unless $ARGS{PLATFORM} eq 'test';
133
134 my $sym_ord = 0;
135 my %ordinal;
136
137 if ($ARGS{PLATFORM} eq 'os2') {
138     if (open my $fh, '<', 'perl5.def') {
139       while (<$fh>) {
140         last if /^\s*EXPORTS\b/;
141       }
142       while (<$fh>) {
143         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
144         # This allows skipping ordinals which were used in older versions
145         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
146       }
147       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
148     }
149 }
150
151 my %skip;
152 # All platforms export boot_DynaLoader unconditionally.
153 my %export = ( boot_DynaLoader => 1 );
154
155 sub try_symbols {
156     foreach my $symbol (@_) {
157         ++$export{$symbol} unless exists $skip{$symbol};
158     }
159 }
160
161 sub readvar {
162     # $hash is the hash that we're adding to. For one of our callers, it will
163     # actually be the skip hash but that doesn't affect the intent of what
164     # we're doing, as in that case we skip adding something to the skip hash
165     # for the second time.
166
167     my $file = $ARGS{TARG_DIR} . shift;
168     my $hash = shift;
169     my $proc = shift;
170     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
171
172     while (<$vars>) {
173         # All symbols have a Perl_ prefix because that's what embed.h sticks
174         # in front of them.  The A?I?S?C? is strictly speaking wrong.
175         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
176
177         my $var = "PL_$3";
178         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
179         ++$hash->{$symbol} unless exists $skip{$var};
180     }
181 }
182
183 if ($ARGS{PLATFORM} ne 'os2') {
184     ++$skip{$_} foreach qw(
185                      PL_cryptseen
186                      PL_opsave
187                      Perl_GetVars
188                      Perl_dump_fds
189                      Perl_my_bcopy
190                      Perl_my_bzero
191                      Perl_my_chsize
192                      Perl_my_htonl
193                      Perl_my_memcmp
194                      Perl_my_memset
195                      Perl_my_ntohl
196                      Perl_my_swap
197                          );
198     if ($ARGS{PLATFORM} eq 'vms') {
199         ++$skip{PL_statusvalue_posix};
200         # This is a wrapper if we have symlink, not a replacement
201         # if we don't.
202         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
203     } else {
204         ++$skip{PL_statusvalue_vms};
205         if ($ARGS{PLATFORM} ne 'aix') {
206             ++$skip{$_} foreach qw(
207                                 PL_DBcv
208                                 PL_generation
209                                 PL_lastgotoprobe
210                                 PL_modcount
211                                 PL_timesbuf
212                                 main
213                                  );
214         }
215     }
216 }
217
218 if ($ARGS{PLATFORM} ne 'vms') {
219     # VMS does its own thing for these symbols.
220     ++$skip{$_} foreach qw(
221                         PL_sig_handlers_initted
222                         PL_sig_ignoring
223                         PL_sig_defaulting
224                          );
225     if ($ARGS{PLATFORM} ne 'win32') {
226         ++$skip{$_} foreach qw(
227                             Perl_do_spawn
228                             Perl_do_spawn_nowait
229                             Perl_do_aspawn
230                              );
231     }
232 }
233
234 unless ($define{UNLINK_ALL_VERSIONS}) {
235     ++$skip{Perl_unlnk};
236 }
237
238 unless ($define{'DEBUGGING'}) {
239     ++$skip{$_} foreach qw(
240                     Perl_debop
241                     Perl_debprofdump
242                     Perl_debstack
243                     Perl_debstackptrs
244                     Perl_pad_sv
245                     Perl_pad_setsv
246                     Perl_hv_assert
247                     PL_watchaddr
248                     PL_watchok
249                     PL_watch_pvx
250                          );
251 }
252
253 if ($define{'PERL_IMPLICIT_SYS'}) {
254     ++$skip{$_} foreach qw(
255                     Perl_my_popen
256                     Perl_my_pclose
257                          );
258     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
259     ++$export{perl_clone_host} if $define{USE_ITHREADS};
260 }
261 else {
262     ++$skip{$_} foreach qw(
263                     PL_Mem
264                     PL_MemShared
265                     PL_MemParse
266                     PL_Env
267                     PL_StdIO
268                     PL_LIO
269                     PL_Dir
270                     PL_Sock
271                     PL_Proc
272                     perl_alloc_using
273                     perl_clone_using
274                          );
275 }
276
277 unless ($define{'PERL_OLD_COPY_ON_WRITE'}
278      || $define{'PERL_NEW_COPY_ON_WRITE'}) {
279     ++$skip{Perl_sv_setsv_cow};
280 }
281
282 unless ($define{'USE_REENTRANT_API'}) {
283     ++$skip{PL_reentrant_buffer};
284 }
285
286 if ($define{'MYMALLOC'}) {
287     try_symbols(qw(
288                     Perl_dump_mstats
289                     Perl_get_mstats
290                     Perl_strdup
291                     Perl_putenv
292                     MallocCfg_ptr
293                     MallocCfgP_ptr
294                     ));
295     unless ($define{USE_ITHREADS}) {
296         ++$skip{PL_malloc_mutex}
297     }
298 }
299 else {
300     ++$skip{$_} foreach qw(
301                     PL_malloc_mutex
302                     Perl_dump_mstats
303                     Perl_get_mstats
304                     MallocCfg_ptr
305                     MallocCfgP_ptr
306                          );
307 }
308
309 if ($define{'PERL_USE_SAFE_PUTENV'}) {
310     ++$skip{PL_use_safe_putenv};
311 }
312
313 unless ($define{'USE_ITHREADS'}) {
314     ++$skip{PL_thr_key};
315 }
316
317 # USE_5005THREADS symbols. Kept as reference for easier removal
318 ++$skip{$_} foreach qw(
319                     PL_sv_mutex
320                     PL_strtab_mutex
321                     PL_svref_mutex
322                     PL_cred_mutex
323                     PL_eval_mutex
324                     PL_fdpid_mutex
325                     PL_sv_lock_mutex
326                     PL_eval_cond
327                     PL_eval_owner
328                     PL_threads_mutex
329                     PL_nthreads
330                     PL_nthreads_cond
331                     PL_threadnum
332                     PL_threadsv_names
333                     PL_thrsv
334                     PL_vtbl_mutex
335                     Perl_condpair_magic
336                     Perl_new_struct_thread
337                     Perl_per_thread_magicals
338                     Perl_thread_create
339                     Perl_find_threadsv
340                     Perl_unlock_condpair
341                     Perl_magic_mutexfree
342                     Perl_sv_lock
343                      );
344
345 unless ($define{'USE_ITHREADS'}) {
346     ++$skip{$_} foreach qw(
347                     PL_check_mutex
348                     PL_op_mutex
349                     PL_regex_pad
350                     PL_regex_padav
351                     PL_dollarzero_mutex
352                     PL_hints_mutex
353                     PL_my_ctx_mutex
354                     PL_perlio_mutex
355                     PL_stashpad
356                     PL_stashpadix
357                     PL_stashpadmax
358                     Perl_alloccopstash
359                     Perl_clone_params_del
360                     Perl_clone_params_new
361                     Perl_parser_dup
362                     Perl_dirp_dup
363                     Perl_cx_dup
364                     Perl_si_dup
365                     Perl_any_dup
366                     Perl_ss_dup
367                     Perl_fp_dup
368                     Perl_gp_dup
369                     Perl_he_dup
370                     Perl_mg_dup
371                     Perl_re_dup_guts
372                     Perl_sv_dup
373                     Perl_sv_dup_inc
374                     Perl_rvpv_dup
375                     Perl_hek_dup
376                     Perl_sys_intern_dup
377                     perl_clone
378                     perl_clone_using
379                     Perl_stashpv_hvname_match
380                     Perl_regdupe_internal
381                     Perl_newPADOP
382                          );
383 }
384
385 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
386     ++$skip{$_} foreach qw(
387                     PL_my_cxt_index
388                     PL_my_cxt_list
389                     PL_my_cxt_size
390                     PL_my_cxt_keys
391                     Perl_croak_nocontext
392                     Perl_die_nocontext
393                     Perl_deb_nocontext
394                     Perl_form_nocontext
395                     Perl_load_module_nocontext
396                     Perl_mess_nocontext
397                     Perl_warn_nocontext
398                     Perl_warner_nocontext
399                     Perl_newSVpvf_nocontext
400                     Perl_sv_catpvf_nocontext
401                     Perl_sv_setpvf_nocontext
402                     Perl_sv_catpvf_mg_nocontext
403                     Perl_sv_setpvf_mg_nocontext
404                     Perl_my_cxt_init
405                     Perl_my_cxt_index
406                          );
407 }
408
409 unless ($define{'PERL_NEED_APPCTX'}) {
410     ++$skip{PL_appctx};
411 }
412
413 unless ($define{'PERL_NEED_TIMESBASE'}) {
414     ++$skip{PL_timesbase};
415 }
416
417 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
418     ++$skip{PL_sv_serial};
419 }
420
421 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
422     ++$skip{PL_dumper_fd};
423 }
424
425 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
426     ++$skip{Perl_gv_SVadd};
427 }
428
429 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
430     ++$skip{Perl_my_sprintf};
431 }
432
433 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
434     ++$skip{PL_pidstatus};
435 }
436
437 unless ($define{'PERL_TRACK_MEMPOOL'}) {
438     ++$skip{PL_memory_debug_header};
439 }
440
441 unless ($define{PERL_MAD}) {
442     ++$skip{$_} foreach qw(
443                     PL_madskills
444                     PL_xmlfp
445                          );
446 }
447
448 unless ($define{'MULTIPLICITY'}) {
449     ++$skip{$_} foreach qw(
450                     PL_interp_size
451                     PL_interp_size_5_16_0
452                          );
453 }
454
455 unless ($define{'PERL_GLOBAL_STRUCT'}) {
456     ++$skip{PL_global_struct_size};
457 }
458
459 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
460     ++$skip{$_} foreach qw(
461                     PL_my_cxt_keys
462                     Perl_my_cxt_index
463                          );
464 }
465
466 unless ($define{HAS_MMAP}) {
467     ++$skip{PL_mmap_page_size};
468 }
469
470 if ($define{HAS_SIGACTION}) {
471     ++$skip{PL_sig_trapped};
472
473     if ($ARGS{PLATFORM} eq 'vms') {
474         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
475         ++$skip{PL_sig_ignoring};
476         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
477     }
478 }
479
480 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
481     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
482     ++$skip{Perl_csighandler_init};
483     ++$skip{Perl_my_kill};
484     ++$skip{Perl_sig_to_vmscondition};
485     ++$skip{PL_sig_defaulting};
486     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
487 }
488
489 unless ($define{USE_LOCALE_COLLATE}) {
490     ++$skip{$_} foreach qw(
491                     PL_collation_ix
492                     PL_collation_name
493                     PL_collation_standard
494                     PL_collxfrm_base
495                     PL_collxfrm_mult
496                     Perl_sv_collxfrm
497                     Perl_sv_collxfrm_flags
498                          );
499 }
500
501 unless ($define{USE_LOCALE_NUMERIC}) {
502     ++$skip{$_} foreach qw(
503                     PL_numeric_local
504                     PL_numeric_name
505                     PL_numeric_radix_sv
506                     PL_numeric_standard
507                          );
508 }
509
510 unless ($define{HAVE_INTERP_INTERN}) {
511     ++$skip{$_} foreach qw(
512                     Perl_sys_intern_clear
513                     Perl_sys_intern_dup
514                     Perl_sys_intern_init
515                     PL_sys_intern
516                          );
517 }
518
519 if ($define{HAS_SIGNBIT}) {
520     ++$skip{Perl_signbit};
521 }
522
523 if ($define{'PERL_GLOBAL_STRUCT'}) {
524     readvar('perlvars.h', \%skip);
525     # This seems like the least ugly way to cope with the fact that PL_sh_path
526     # is mentioned in perlvar.h and globvar.sym, and always exported.
527     delete $skip{PL_sh_path};
528     ++$export{Perl_GetVars};
529     try_symbols(qw(PL_Vars PL_VarsPtr)) unless $ARGS{CCTYPE} eq 'GCC';
530 } else {
531     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
532 }
533
534 # functions from *.sym files
535
536 my @syms = qw(globvar.sym);
537
538 # Symbols that are the public face of the PerlIO layers implementation
539 # These are in _addition to_ the public face of the abstraction
540 # and need to be exported to allow XS modules to implement layers
541 my @layer_syms = qw(
542                     PerlIOBase_binmode
543                     PerlIOBase_clearerr
544                     PerlIOBase_close
545                     PerlIOBase_dup
546                     PerlIOBase_eof
547                     PerlIOBase_error
548                     PerlIOBase_fileno
549                     PerlIOBase_open
550                     PerlIOBase_noop_fail
551                     PerlIOBase_noop_ok
552                     PerlIOBase_popped
553                     PerlIOBase_pushed
554                     PerlIOBase_read
555                     PerlIOBase_setlinebuf
556                     PerlIOBase_unread
557                     PerlIOBuf_bufsiz
558                     PerlIOBuf_close
559                     PerlIOBuf_dup
560                     PerlIOBuf_fill
561                     PerlIOBuf_flush
562                     PerlIOBuf_get_base
563                     PerlIOBuf_get_cnt
564                     PerlIOBuf_get_ptr
565                     PerlIOBuf_open
566                     PerlIOBuf_popped
567                     PerlIOBuf_pushed
568                     PerlIOBuf_read
569                     PerlIOBuf_seek
570                     PerlIOBuf_set_ptrcnt
571                     PerlIOBuf_tell
572                     PerlIOBuf_unread
573                     PerlIOBuf_write
574                     PerlIO_allocate
575                     PerlIO_apply_layera
576                     PerlIO_apply_layers
577                     PerlIO_arg_fetch
578                     PerlIO_debug
579                     PerlIO_define_layer
580                     PerlIO_find_layer
581                     PerlIO_isutf8
582                     PerlIO_layer_fetch
583                     PerlIO_list_alloc
584                     PerlIO_list_free
585                     PerlIO_modestr
586                     PerlIO_parse_layers
587                     PerlIO_pending
588                     PerlIO_perlio
589                     PerlIO_pop
590                     PerlIO_push
591                     PerlIO_sv_dup
592                     Perl_PerlIO_clearerr
593                     Perl_PerlIO_close
594                     Perl_PerlIO_context_layers
595                     Perl_PerlIO_eof
596                     Perl_PerlIO_error
597                     Perl_PerlIO_fileno
598                     Perl_PerlIO_fill
599                     Perl_PerlIO_flush
600                     Perl_PerlIO_get_base
601                     Perl_PerlIO_get_bufsiz
602                     Perl_PerlIO_get_cnt
603                     Perl_PerlIO_get_ptr
604                     Perl_PerlIO_read
605                     Perl_PerlIO_seek
606                     Perl_PerlIO_set_cnt
607                     Perl_PerlIO_set_ptrcnt
608                     Perl_PerlIO_setlinebuf
609                     Perl_PerlIO_stderr
610                     Perl_PerlIO_stdin
611                     Perl_PerlIO_stdout
612                     Perl_PerlIO_tell
613                     Perl_PerlIO_unread
614                     Perl_PerlIO_write
615 );
616 if ($ARGS{PLATFORM} eq 'netware') {
617     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
618 }
619
620 if ($define{'USE_PERLIO'}) {
621     # Export the symols that make up the PerlIO abstraction, regardless
622     # of its implementation - read from a file
623     push @syms, 'perlio.sym';
624
625     # This part is then dependent on how the abstraction is implemented
626     if ($define{'USE_SFIO'}) {
627         # Old legacy non-stdio "PerlIO"
628         ++$skip{$_} foreach @layer_syms;
629         ++$skip{perlsio_binmode};
630         # SFIO defines most of the PerlIO routines as macros
631         # So undo most of what $perlio_sym has just done - d'oh !
632         # Perhaps it would be better to list the ones which do exist
633         # And emit them
634         ++$skip{$_} foreach qw(
635                          PerlIO_canset_cnt
636                          PerlIO_clearerr
637                          PerlIO_close
638                          PerlIO_eof
639                          PerlIO_error
640                          PerlIO_exportFILE
641                          PerlIO_fast_gets
642                          PerlIO_fdopen
643                          PerlIO_fileno
644                          PerlIO_findFILE
645                          PerlIO_flush
646                          PerlIO_get_base
647                          PerlIO_get_bufsiz
648                          PerlIO_get_cnt
649                          PerlIO_get_ptr
650                          PerlIO_getc
651                          PerlIO_getname
652                          PerlIO_has_base
653                          PerlIO_has_cntptr
654                          PerlIO_importFILE
655                          PerlIO_open
656                          PerlIO_printf
657                          PerlIO_putc
658                          PerlIO_puts
659                          PerlIO_read
660                          PerlIO_releaseFILE
661                          PerlIO_reopen
662                          PerlIO_rewind
663                          PerlIO_seek
664                          PerlIO_set_cnt
665                          PerlIO_set_ptrcnt
666                          PerlIO_setlinebuf
667                          PerlIO_sprintf
668                          PerlIO_stderr
669                          PerlIO_stdin
670                          PerlIO_stdout
671                          PerlIO_stdoutf
672                          PerlIO_tell
673                          PerlIO_ungetc
674                          PerlIO_vprintf
675                          PerlIO_write
676                          PerlIO_perlio
677                          Perl_PerlIO_clearerr
678                          Perl_PerlIO_close
679                          Perl_PerlIO_eof
680                          Perl_PerlIO_error
681                          Perl_PerlIO_fileno
682                          Perl_PerlIO_fill
683                          Perl_PerlIO_flush
684                          Perl_PerlIO_get_base
685                          Perl_PerlIO_get_bufsiz
686                          Perl_PerlIO_get_cnt
687                          Perl_PerlIO_get_ptr
688                          Perl_PerlIO_read
689                          Perl_PerlIO_seek
690                          Perl_PerlIO_set_cnt
691                          Perl_PerlIO_set_ptrcnt
692                          Perl_PerlIO_setlinebuf
693                          Perl_PerlIO_stderr
694                          Perl_PerlIO_stdin
695                          Perl_PerlIO_stdout
696                          Perl_PerlIO_tell
697                          Perl_PerlIO_unread
698                          Perl_PerlIO_write
699                          PL_def_layerlist
700                          PL_known_layers
701                          PL_perlio
702                              );
703     }
704     else {
705         # PerlIO with layers - export implementation
706         try_symbols(@layer_syms, 'perlsio_binmode');
707     }
708 } else {
709         # -Uuseperlio
710         # Skip the PerlIO layer symbols - although
711         # nothing should have exported them anyway.
712         ++$skip{$_} foreach @layer_syms;
713         ++$skip{$_} foreach qw(
714                         perlsio_binmode
715                         PL_def_layerlist
716                         PL_known_layers
717                         PL_perlio
718                         PL_perlio_debug_fd
719                         PL_perlio_fd_refcnt
720                         PL_perlio_fd_refcnt_size
721                         PL_perlio_mutex
722                              );
723
724         # Also do NOT add abstraction symbols from $perlio_sym
725         # abstraction is done as #define to stdio
726         # Remaining remnants that _may_ be functions are handled below.
727 }
728
729 ###############################################################################
730
731 # At this point all skip lists should be completed, as we are about to test
732 # many symbols against them.
733
734 {
735     my %seen;
736     my ($embed) = setup_embed($ARGS{TARG_DIR});
737
738     foreach (@$embed) {
739         my ($flags, $retval, $func, @args) = @$_;
740         next unless $func;
741         if ($flags =~ /[AX]/ && $flags !~ /[xm]/ || $flags =~ /b/) {
742             # public API, so export
743
744             # If a function is defined twice, for example before and after
745             # an #else, only export its name once. Important to do this test
746             # within the block, as the *first* definition may have flags which
747             # mean "don't export"
748             next if $seen{$func}++;
749             $func = "Perl_$func" if $flags =~ /[pbX]/;
750             ++$export{$func} unless exists $skip{$func};
751         }
752     }
753 }
754
755 foreach (@syms) {
756     my $syms = $ARGS{TARG_DIR} . $_;
757     open my $global, '<', $syms or die "failed to open $syms: $!\n";
758     # Functions already have a Perl_ prefix
759     # Variables need a PL_ prefix
760     my $prefix = $syms =~ /var\.sym$/i ? 'PL_' : '';
761     while (<$global>) {
762         next unless /^([A-Za-z].*)/;
763         my $symbol = "$prefix$1";
764         ++$export{$symbol} unless exists $skip{$symbol};
765     }
766 }
767
768 # variables
769
770 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
771     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
772     # XXX AIX seems to want the perlvars.h symbols, for some reason
773     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
774         readvar('perlvars.h', \%export);
775     }
776 }
777 else {
778     unless ($define{'PERL_GLOBAL_STRUCT'}) {
779         readvar('perlvars.h', \%export);
780     }
781     unless ($define{MULTIPLICITY}) {
782         readvar('intrpvar.h', \%export);
783     }
784 }
785
786 # Oddities from PerlIO
787 # All have alternate implementations in perlio.c, so always exist.
788 # Should they be considered to be part of the API?
789 try_symbols(qw(
790                     PerlIO_binmode
791                     PerlIO_getpos
792                     PerlIO_init
793                     PerlIO_setpos
794                     PerlIO_sprintf
795                     PerlIO_tmpfile
796                     PerlIO_vsprintf
797              ));
798
799 if ($ARGS{PLATFORM} eq 'win32') {
800     try_symbols(qw(
801                                  win32_free_childdir
802                                  win32_free_childenv
803                                  win32_get_childdir
804                                  win32_get_childenv
805                                  win32_spawnvp
806                  ));
807 }
808
809 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
810     try_symbols(qw(
811                             Perl_init_os_extras
812                             Perl_thread_create
813                             Perl_win32_init
814                             Perl_win32_term
815                             RunPerl
816                             win32_async_check
817                             win32_errno
818                             win32_environ
819                             win32_abort
820                             win32_fstat
821                             win32_stat
822                             win32_pipe
823                             win32_popen
824                             win32_pclose
825                             win32_rename
826                             win32_setmode
827                             win32_chsize
828                             win32_lseek
829                             win32_tell
830                             win32_dup
831                             win32_dup2
832                             win32_open
833                             win32_close
834                             win32_eof
835                             win32_isatty
836                             win32_read
837                             win32_write
838                             win32_mkdir
839                             win32_rmdir
840                             win32_chdir
841                             win32_flock
842                             win32_execv
843                             win32_execvp
844                             win32_htons
845                             win32_ntohs
846                             win32_htonl
847                             win32_ntohl
848                             win32_inet_addr
849                             win32_inet_ntoa
850                             win32_socket
851                             win32_bind
852                             win32_listen
853                             win32_accept
854                             win32_connect
855                             win32_send
856                             win32_sendto
857                             win32_recv
858                             win32_recvfrom
859                             win32_shutdown
860                             win32_closesocket
861                             win32_ioctlsocket
862                             win32_setsockopt
863                             win32_getsockopt
864                             win32_getpeername
865                             win32_getsockname
866                             win32_gethostname
867                             win32_gethostbyname
868                             win32_gethostbyaddr
869                             win32_getprotobyname
870                             win32_getprotobynumber
871                             win32_getservbyname
872                             win32_getservbyport
873                             win32_select
874                             win32_endhostent
875                             win32_endnetent
876                             win32_endprotoent
877                             win32_endservent
878                             win32_getnetent
879                             win32_getnetbyname
880                             win32_getnetbyaddr
881                             win32_getprotoent
882                             win32_getservent
883                             win32_sethostent
884                             win32_setnetent
885                             win32_setprotoent
886                             win32_setservent
887                             win32_getenv
888                             win32_putenv
889                             win32_perror
890                             win32_malloc
891                             win32_calloc
892                             win32_realloc
893                             win32_free
894                             win32_sleep
895                             win32_times
896                             win32_access
897                             win32_alarm
898                             win32_chmod
899                             win32_open_osfhandle
900                             win32_get_osfhandle
901                             win32_ioctl
902                             win32_link
903                             win32_unlink
904                             win32_utime
905                             win32_gettimeofday
906                             win32_uname
907                             win32_wait
908                             win32_waitpid
909                             win32_kill
910                             win32_str_os_error
911                             win32_opendir
912                             win32_readdir
913                             win32_telldir
914                             win32_seekdir
915                             win32_rewinddir
916                             win32_closedir
917                             win32_longpath
918                             win32_ansipath
919                             win32_os_id
920                             win32_getpid
921                             win32_crypt
922                             win32_dynaload
923                             win32_clearenv
924                             win32_stdin
925                             win32_stdout
926                             win32_stderr
927                             win32_ferror
928                             win32_feof
929                             win32_strerror
930                             win32_fprintf
931                             win32_printf
932                             win32_vfprintf
933                             win32_vprintf
934                             win32_fread
935                             win32_fwrite
936                             win32_fopen
937                             win32_fdopen
938                             win32_freopen
939                             win32_fclose
940                             win32_fputs
941                             win32_fputc
942                             win32_ungetc
943                             win32_getc
944                             win32_fileno
945                             win32_clearerr
946                             win32_fflush
947                             win32_ftell
948                             win32_fseek
949                             win32_fgetpos
950                             win32_fsetpos
951                             win32_rewind
952                             win32_tmpfile
953                             win32_setbuf
954                             win32_setvbuf
955                             win32_flushall
956                             win32_fcloseall
957                             win32_fgets
958                             win32_gets
959                             win32_fgetc
960                             win32_putc
961                             win32_puts
962                             win32_getchar
963                             win32_putchar
964                  ));
965 }
966 elsif ($ARGS{PLATFORM} eq 'vms') {
967     try_symbols(qw(
968                       Perl_cando
969                       Perl_cando_by_name
970                       Perl_closedir
971                       Perl_csighandler_init
972                       Perl_do_rmdir
973                       Perl_fileify_dirspec
974                       Perl_fileify_dirspec_ts
975                       Perl_fileify_dirspec_utf8
976                       Perl_fileify_dirspec_utf8_ts
977                       Perl_flex_fstat
978                       Perl_flex_lstat
979                       Perl_flex_stat
980                       Perl_kill_file
981                       Perl_my_chdir
982                       Perl_my_chmod
983                       Perl_my_crypt
984                       Perl_my_endpwent
985                       Perl_my_fclose
986                       Perl_my_fdopen
987                       Perl_my_fgetname
988                       Perl_my_flush
989                       Perl_my_fwrite
990                       Perl_my_gconvert
991                       Perl_my_getenv
992                       Perl_my_getenv_len
993                       Perl_my_getlogin
994                       Perl_my_getpwnam
995                       Perl_my_getpwuid
996                       Perl_my_gmtime
997                       Perl_my_kill
998                       Perl_my_localtime
999                       Perl_my_mkdir
1000                       Perl_my_sigaction
1001                       Perl_my_symlink
1002                       Perl_my_time
1003                       Perl_my_tmpfile
1004                       Perl_my_trnlnm
1005                       Perl_my_utime
1006                       Perl_my_waitpid
1007                       Perl_opendir
1008                       Perl_pathify_dirspec
1009                       Perl_pathify_dirspec_ts
1010                       Perl_pathify_dirspec_utf8
1011                       Perl_pathify_dirspec_utf8_ts
1012                       Perl_readdir
1013                       Perl_readdir_r
1014                       Perl_rename
1015                       Perl_rmscopy
1016                       Perl_rmsexpand
1017                       Perl_rmsexpand_ts
1018                       Perl_rmsexpand_utf8
1019                       Perl_rmsexpand_utf8_ts
1020                       Perl_seekdir
1021                       Perl_sig_to_vmscondition
1022                       Perl_telldir
1023                       Perl_tounixpath
1024                       Perl_tounixpath_ts
1025                       Perl_tounixpath_utf8
1026                       Perl_tounixpath_utf8_ts
1027                       Perl_tounixspec
1028                       Perl_tounixspec_ts
1029                       Perl_tounixspec_utf8
1030                       Perl_tounixspec_utf8_ts
1031                       Perl_tovmspath
1032                       Perl_tovmspath_ts
1033                       Perl_tovmspath_utf8
1034                       Perl_tovmspath_utf8_ts
1035                       Perl_tovmsspec
1036                       Perl_tovmsspec_ts
1037                       Perl_tovmsspec_utf8
1038                       Perl_tovmsspec_utf8_ts
1039                       Perl_trim_unixpath
1040                       Perl_vms_case_tolerant
1041                       Perl_vms_do_aexec
1042                       Perl_vms_do_exec
1043                       Perl_vms_image_init
1044                       Perl_vms_realpath
1045                       Perl_vmssetenv
1046                       Perl_vmssetuserlnm
1047                       Perl_vmstrnenv
1048                       PerlIO_openn
1049                  ));
1050 }
1051 elsif ($ARGS{PLATFORM} eq 'os2') {
1052     try_symbols(qw(
1053                       ctermid
1054                       get_sysinfo
1055                       Perl_OS2_init
1056                       Perl_OS2_init3
1057                       Perl_OS2_term
1058                       OS2_Perl_data
1059                       dlopen
1060                       dlsym
1061                       dlerror
1062                       dlclose
1063                       dup2
1064                       dup
1065                       my_tmpfile
1066                       my_tmpnam
1067                       my_flock
1068                       my_rmdir
1069                       my_mkdir
1070                       my_getpwuid
1071                       my_getpwnam
1072                       my_getpwent
1073                       my_setpwent
1074                       my_endpwent
1075                       fork_with_resources
1076                       croak_with_os2error
1077                       setgrent
1078                       endgrent
1079                       getgrent
1080                       malloc_mutex
1081                       threads_mutex
1082                       nthreads
1083                       nthreads_cond
1084                       os2_cond_wait
1085                       os2_stat
1086                       os2_execname
1087                       async_mssleep
1088                       msCounter
1089                       InfoTable
1090                       pthread_join
1091                       pthread_create
1092                       pthread_detach
1093                       XS_Cwd_change_drive
1094                       XS_Cwd_current_drive
1095                       XS_Cwd_extLibpath
1096                       XS_Cwd_extLibpath_set
1097                       XS_Cwd_sys_abspath
1098                       XS_Cwd_sys_chdir
1099                       XS_Cwd_sys_cwd
1100                       XS_Cwd_sys_is_absolute
1101                       XS_Cwd_sys_is_relative
1102                       XS_Cwd_sys_is_rooted
1103                       XS_DynaLoader_mod2fname
1104                       XS_File__Copy_syscopy
1105                       Perl_Register_MQ
1106                       Perl_Deregister_MQ
1107                       Perl_Serve_Messages
1108                       Perl_Process_Messages
1109                       init_PMWIN_entries
1110                       PMWIN_entries
1111                       Perl_hab_GET
1112                       loadByOrdinal
1113                       pExtFCN
1114                       os2error
1115                       ResetWinError
1116                       CroakWinError
1117                       PL_do_undump
1118                  ));
1119 }
1120 elsif ($ARGS{PLATFORM} eq 'netware') {
1121     try_symbols(qw(
1122                         Perl_init_os_extras
1123                         Perl_thread_create
1124                         Perl_nw5_init
1125                         RunPerl
1126                         AllocStdPerl
1127                         FreeStdPerl
1128                         do_spawn2
1129                         do_aspawn
1130                         nw_uname
1131                         nw_stdin
1132                         nw_stdout
1133                         nw_stderr
1134                         nw_feof
1135                         nw_ferror
1136                         nw_fopen
1137                         nw_fclose
1138                         nw_clearerr
1139                         nw_getc
1140                         nw_fgets
1141                         nw_fputc
1142                         nw_fputs
1143                         nw_fflush
1144                         nw_ungetc
1145                         nw_fileno
1146                         nw_fdopen
1147                         nw_freopen
1148                         nw_fread
1149                         nw_fwrite
1150                         nw_setbuf
1151                         nw_setvbuf
1152                         nw_vfprintf
1153                         nw_ftell
1154                         nw_fseek
1155                         nw_rewind
1156                         nw_tmpfile
1157                         nw_fgetpos
1158                         nw_fsetpos
1159                         nw_dup
1160                         nw_access
1161                         nw_chmod
1162                         nw_chsize
1163                         nw_close
1164                         nw_dup2
1165                         nw_flock
1166                         nw_isatty
1167                         nw_link
1168                         nw_lseek
1169                         nw_stat
1170                         nw_mktemp
1171                         nw_open
1172                         nw_read
1173                         nw_rename
1174                         nw_setmode
1175                         nw_unlink
1176                         nw_utime
1177                         nw_write
1178                         nw_chdir
1179                         nw_rmdir
1180                         nw_closedir
1181                         nw_opendir
1182                         nw_readdir
1183                         nw_rewinddir
1184                         nw_seekdir
1185                         nw_telldir
1186                         nw_htonl
1187                         nw_htons
1188                         nw_ntohl
1189                         nw_ntohs
1190                         nw_accept
1191                         nw_bind
1192                         nw_connect
1193                         nw_endhostent
1194                         nw_endnetent
1195                         nw_endprotoent
1196                         nw_endservent
1197                         nw_gethostbyaddr
1198                         nw_gethostbyname
1199                         nw_gethostent
1200                         nw_gethostname
1201                         nw_getnetbyaddr
1202                         nw_getnetbyname
1203                         nw_getnetent
1204                         nw_getpeername
1205                         nw_getprotobyname
1206                         nw_getprotobynumber
1207                         nw_getprotoent
1208                         nw_getservbyname
1209                         nw_getservbyport
1210                         nw_getservent
1211                         nw_getsockname
1212                         nw_getsockopt
1213                         nw_inet_addr
1214                         nw_listen
1215                         nw_socket
1216                         nw_recv
1217                         nw_recvfrom
1218                         nw_select
1219                         nw_send
1220                         nw_sendto
1221                         nw_sethostent
1222                         nw_setnetent
1223                         nw_setprotoent
1224                         nw_setservent
1225                         nw_setsockopt
1226                         nw_inet_ntoa
1227                         nw_shutdown
1228                         nw_crypt
1229                         nw_execvp
1230                         nw_kill
1231                         nw_Popen
1232                         nw_Pclose
1233                         nw_Pipe
1234                         nw_times
1235                         nw_waitpid
1236                         nw_getpid
1237                         nw_spawnvp
1238                         nw_os_id
1239                         nw_open_osfhandle
1240                         nw_get_osfhandle
1241                         nw_abort
1242                         nw_sleep
1243                         nw_wait
1244                         nw_dynaload
1245                         nw_strerror
1246                         fnFpSetMode
1247                         fnInsertHashListAddrs
1248                         fnGetHashListAddrs
1249                         Perl_deb
1250                         Perl_sv_setsv
1251                         Perl_sv_catsv
1252                         Perl_sv_catpvn
1253                         Perl_sv_2pv
1254                         nw_freeenviron
1255                         Remove_Thread_Ctx
1256                  ));
1257 }
1258
1259 # When added this code was only run for Win32 and WinCE
1260 # Currently only Win32 links static extensions into the shared library.
1261 # The WinCE makefile doesn't appear to support static extensions, so this code
1262 # can't have any effect there.
1263 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1264 # list of dynamic extensions, and the rules to build them)
1265 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1266 # static extensions with -fPIC, but links them to perl, not libperl.so
1267 # The VMS build scripts don't yet implement static extensions at all.
1268
1269 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1270     # records of type boot_module for statically linked modules (except Dynaloader)
1271     my $static_ext = $Config{static_ext} // "";
1272     $static_ext =~ s/\//__/g;
1273     $static_ext =~ s/\bDynaLoader\b//;
1274     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1275     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1276 }
1277
1278 if ($ARGS{PLATFORM} eq 'os2') {
1279     my (%mapped, @missing);
1280     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1281     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1282     close MAP or die 'Cannot close miniperl.map';
1283
1284     @missing = grep { !exists $mapped{$_} }
1285                     keys %export;
1286     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1287     delete $export{$_} foreach @missing;
1288 }
1289
1290 ###############################################################################
1291
1292 # Now all symbols should be defined because next we are going to output them.
1293
1294 # Start with platform specific headers:
1295
1296 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1297     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1298         : "perl$Config{api_revision}$Config{api_version}";
1299     print "LIBRARY $dll\n";
1300     # The DESCRIPTION module definition file statement is not supported
1301     # by VC7 onwards.
1302     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1303         print "DESCRIPTION 'Perl interpreter'\n";
1304     }
1305     print "EXPORTS\n";
1306 }
1307 elsif ($ARGS{PLATFORM} eq 'os2') {
1308     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1309     $v .= '-thread' if $Config{archname} =~ /-thread/;
1310     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1311     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1312     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1313     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1314     print <<"---EOP---";
1315 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1316 $d
1317 STACKSIZE 32768
1318 CODE LOADONCALL
1319 DATA LOADONCALL NONSHARED MULTIPLE
1320 EXPORTS
1321 ---EOP---
1322 }
1323 elsif ($ARGS{PLATFORM} eq 'aix') {
1324     my $OSVER = `uname -v`;
1325     chop $OSVER;
1326     my $OSREL = `uname -r`;
1327     chop $OSREL;
1328     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1329         print "#! ..\n";
1330     } else {
1331         print "#!\n";
1332     }
1333 }
1334 elsif ($ARGS{PLATFORM} eq 'netware') {
1335         if ($ARGS{FILETYPE} eq 'def') {
1336         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1337         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1338         print "EXPORTS\n";
1339         }
1340 }
1341
1342 # Then the symbols
1343
1344 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1345 foreach my $symbol (@symbols) {
1346     if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1347         print "\t$symbol\n";
1348     }
1349     elsif ($ARGS{PLATFORM} eq 'os2') {
1350         printf qq(    %-31s \@%s\n),
1351           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1352         printf qq(    %-31s \@%s\n),
1353           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1354           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1355           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1356     }
1357     elsif ($ARGS{PLATFORM} eq 'netware') {
1358         print "\t$symbol,\n";
1359     } else {
1360         print "$symbol\n";
1361     }
1362 }
1363
1364 # Then platform specific footers.
1365
1366 if ($ARGS{PLATFORM} eq 'os2') {
1367     print <<EOP;
1368     dll_perlmain=main
1369     fill_extLibpath
1370     dir_subst
1371     Perl_OS2_handler_install
1372
1373 ; LAST_ORDINAL=$sym_ord
1374 EOP
1375 }
1376
1377 1;