perl5160delta: Another XS bug
[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 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{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
107                                            |SPRINTF_RETURNS_STRLEN
108                                            |(?:PERL|USE|HAS)_\w+)\b/x;
109 }
110 close(CFG);
111
112 # perl.h logic duplication begins
113
114 if ($define{PERL_IMPLICIT_SYS}) {
115     $define{PL_OP_SLAB_ALLOC} = 1;
116 }
117
118 if ($define{USE_ITHREADS}) {
119     if (!$define{MULTIPLICITY}) {
120         $define{MULTIPLICITY} = 1;
121     }
122 }
123
124 $define{PERL_IMPLICIT_CONTEXT} ||=
125     $define{USE_ITHREADS} ||
126     $define{MULTIPLICITY} ;
127
128 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
129     $define{USE_REENTRANT_API} = 1;
130 }
131
132 # perl.h logic duplication ends
133
134 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
135      unless $ARGS{PLATFORM} eq 'test';
136
137 my $sym_ord = 0;
138 my %ordinal;
139
140 if ($ARGS{PLATFORM} eq 'os2') {
141     if (open my $fh, '<', 'perl5.def') {
142       while (<$fh>) {
143         last if /^\s*EXPORTS\b/;
144       }
145       while (<$fh>) {
146         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
147         # This allows skipping ordinals which were used in older versions
148         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
149       }
150       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
151     }
152 }
153
154 my %skip;
155 # All platforms export boot_DynaLoader unconditionally.
156 my %export = ( boot_DynaLoader => 1 );
157
158 sub try_symbols {
159     foreach my $symbol (@_) {
160         ++$export{$symbol} unless exists $skip{$symbol};
161     }
162 }
163
164 sub readvar {
165     # $hash is the hash that we're adding to. For one of our callers, it will
166     # actually be the skip hash but that doesn't affect the intent of what
167     # we're doing, as in that case we skip adding something to the skip hash
168     # for the second time.
169
170     my $file = $ARGS{TARG_DIR} . shift;
171     my $hash = shift;
172     my $proc = shift;
173     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
174
175     while (<$vars>) {
176         # All symbols have a Perl_ prefix because that's what embed.h sticks
177         # in front of them.  The A?I?S?C? is strictly speaking wrong.
178         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
179
180         my $var = "PL_$3";
181         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
182         ++$hash->{$symbol} unless exists $skip{$var};
183     }
184 }
185
186 if ($ARGS{PLATFORM} ne 'os2') {
187     ++$skip{$_} foreach qw(
188                      PL_cryptseen
189                      PL_opsave
190                      Perl_GetVars
191                      Perl_dump_fds
192                      Perl_my_bcopy
193                      Perl_my_bzero
194                      Perl_my_chsize
195                      Perl_my_htonl
196                      Perl_my_memcmp
197                      Perl_my_memset
198                      Perl_my_ntohl
199                      Perl_my_swap
200                          );
201     if ($ARGS{PLATFORM} eq 'vms') {
202         ++$skip{PL_statusvalue_posix};
203         # This is a wrapper if we have symlink, not a replacement
204         # if we don't.
205         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
206     } else {
207         ++$skip{PL_statusvalue_vms};
208         if ($ARGS{PLATFORM} ne 'aix') {
209             ++$skip{$_} foreach qw(
210                                 PL_DBcv
211                                 PL_generation
212                                 PL_lastgotoprobe
213                                 PL_modcount
214                                 PL_timesbuf
215                                 main
216                                  );
217         }
218     }
219 }
220
221 if ($ARGS{PLATFORM} ne 'vms') {
222     # VMS does its own thing for these symbols.
223     ++$skip{$_} foreach qw(
224                         PL_sig_handlers_initted
225                         PL_sig_ignoring
226                         PL_sig_defaulting
227                          );
228     if ($ARGS{PLATFORM} ne 'win32') {
229         ++$skip{$_} foreach qw(
230                             Perl_do_spawn
231                             Perl_do_spawn_nowait
232                             Perl_do_aspawn
233                              );
234     }
235 }
236
237 unless ($define{UNLINK_ALL_VERSIONS}) {
238     ++$skip{Perl_unlnk};
239 }
240
241 unless ($define{'DEBUGGING'}) {
242     ++$skip{$_} foreach qw(
243                     Perl_debop
244                     Perl_debprofdump
245                     Perl_debstack
246                     Perl_debstackptrs
247                     Perl_pad_sv
248                     Perl_pad_setsv
249                     Perl_hv_assert
250                     PL_block_type
251                     PL_watchaddr
252                     PL_watchok
253                     PL_watch_pvx
254                          );
255 }
256
257 if ($define{'PERL_IMPLICIT_SYS'}) {
258     ++$skip{$_} foreach qw(
259                     Perl_my_popen
260                     Perl_my_pclose
261                          );
262     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
263     ++$export{perl_clone_host} if $define{USE_ITHREADS};
264 }
265 else {
266     ++$skip{$_} foreach qw(
267                     PL_Mem
268                     PL_MemShared
269                     PL_MemParse
270                     PL_Env
271                     PL_StdIO
272                     PL_LIO
273                     PL_Dir
274                     PL_Sock
275                     PL_Proc
276                     perl_alloc_using
277                     perl_clone_using
278                          );
279 }
280
281 unless ($define{'PERL_OLD_COPY_ON_WRITE'}) {
282     ++$skip{Perl_sv_setsv_cow};
283 }
284
285 unless ($define{'USE_REENTRANT_API'}) {
286     ++$skip{PL_reentrant_buffer};
287 }
288
289 if ($define{'MYMALLOC'}) {
290     try_symbols(qw(
291                     Perl_dump_mstats
292                     Perl_get_mstats
293                     Perl_strdup
294                     Perl_putenv
295                     MallocCfg_ptr
296                     MallocCfgP_ptr
297                     ));
298     unless ($define{USE_ITHREADS}) {
299         ++$skip{PL_malloc_mutex}
300     }
301 }
302 else {
303     ++$skip{$_} foreach qw(
304                     PL_malloc_mutex
305                     Perl_dump_mstats
306                     Perl_get_mstats
307                     MallocCfg_ptr
308                     MallocCfgP_ptr
309                          );
310 }
311
312 if ($define{'PERL_USE_SAFE_PUTENV'}) {
313     ++$skip{PL_use_safe_putenv};
314 }
315
316 unless ($define{'USE_ITHREADS'}) {
317     ++$skip{PL_thr_key};
318 }
319
320 # USE_5005THREADS symbols. Kept as reference for easier removal
321 ++$skip{$_} foreach qw(
322                     PL_sv_mutex
323                     PL_strtab_mutex
324                     PL_svref_mutex
325                     PL_cred_mutex
326                     PL_eval_mutex
327                     PL_fdpid_mutex
328                     PL_sv_lock_mutex
329                     PL_eval_cond
330                     PL_eval_owner
331                     PL_threads_mutex
332                     PL_nthreads
333                     PL_nthreads_cond
334                     PL_threadnum
335                     PL_threadsv_names
336                     PL_thrsv
337                     PL_vtbl_mutex
338                     Perl_condpair_magic
339                     Perl_new_struct_thread
340                     Perl_per_thread_magicals
341                     Perl_thread_create
342                     Perl_find_threadsv
343                     Perl_unlock_condpair
344                     Perl_magic_mutexfree
345                     Perl_sv_lock
346                      );
347
348 unless ($define{'USE_ITHREADS'}) {
349     ++$skip{$_} foreach qw(
350                     PL_check_mutex
351                     PL_op_mutex
352                     PL_regex_pad
353                     PL_regex_padav
354                     PL_dollarzero_mutex
355                     PL_hints_mutex
356                     PL_my_ctx_mutex
357                     PL_perlio_mutex
358                     Perl_clone_params_del
359                     Perl_clone_params_new
360                     Perl_parser_dup
361                     Perl_dirp_dup
362                     Perl_cx_dup
363                     Perl_si_dup
364                     Perl_any_dup
365                     Perl_ss_dup
366                     Perl_fp_dup
367                     Perl_gp_dup
368                     Perl_he_dup
369                     Perl_mg_dup
370                     Perl_re_dup_guts
371                     Perl_sv_dup
372                     Perl_sv_dup_inc
373                     Perl_rvpv_dup
374                     Perl_hek_dup
375                     Perl_sys_intern_dup
376                     perl_clone
377                     perl_clone_using
378                     Perl_stashpv_hvname_match
379                     Perl_regdupe_internal
380                     Perl_newPADOP
381                          );
382 }
383
384 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
385     ++$skip{$_} foreach qw(
386                     PL_my_cxt_index
387                     PL_my_cxt_list
388                     PL_my_cxt_size
389                     PL_my_cxt_keys
390                     Perl_croak_nocontext
391                     Perl_die_nocontext
392                     Perl_deb_nocontext
393                     Perl_form_nocontext
394                     Perl_load_module_nocontext
395                     Perl_mess_nocontext
396                     Perl_warn_nocontext
397                     Perl_warner_nocontext
398                     Perl_newSVpvf_nocontext
399                     Perl_sv_catpvf_nocontext
400                     Perl_sv_setpvf_nocontext
401                     Perl_sv_catpvf_mg_nocontext
402                     Perl_sv_setpvf_mg_nocontext
403                     Perl_my_cxt_init
404                     Perl_my_cxt_index
405                          );
406 }
407
408 unless ($define{'PL_OP_SLAB_ALLOC'}) {
409     ++$skip{$_} foreach qw(
410                      PL_OpPtr
411                      PL_OpSlab
412                      PL_OpSpace
413                      Perl_Slab_Alloc
414                      Perl_Slab_Free
415                          );
416 }
417
418 unless ($define{'PERL_DEBUG_READONLY_OPS'}) {
419     ++$skip{$_} foreach qw(
420                     PL_slab_count
421                     PL_slabs
422                          );
423 }
424
425 unless ($define{'PERL_NEED_APPCTX'}) {
426     ++$skip{PL_appctx};
427 }
428
429 unless ($define{'PERL_NEED_TIMESBASE'}) {
430     ++$skip{PL_timesbase};
431 }
432
433 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
434     ++$skip{PL_sv_serial};
435 }
436
437 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
438     ++$skip{PL_dumper_fd};
439 }
440
441 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
442     ++$skip{Perl_gv_SVadd};
443 }
444
445 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
446     ++$skip{Perl_my_sprintf};
447 }
448
449 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
450     ++$skip{PL_pidstatus};
451 }
452
453 unless ($define{'PERL_TRACK_MEMPOOL'}) {
454     ++$skip{PL_memory_debug_header};
455 }
456
457 unless ($define{PERL_MAD}) {
458     ++$skip{$_} foreach qw(
459                     PL_madskills
460                     PL_xmlfp
461                          );
462 }
463
464 unless ($define{'MULTIPLICITY'}) {
465     ++$skip{$_} foreach qw(
466                     PL_interp_size
467                     PL_interp_size_5_16_0
468                          );
469 }
470
471 unless ($define{'PERL_GLOBAL_STRUCT'}) {
472     ++$skip{PL_global_struct_size};
473 }
474
475 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
476     ++$skip{$_} foreach qw(
477                     PL_my_cxt_keys
478                     Perl_my_cxt_index
479                          );
480 }
481
482 unless ($define{HAS_MMAP}) {
483     ++$skip{PL_mmap_page_size};
484 }
485
486 if ($define{HAS_SIGACTION}) {
487     ++$skip{PL_sig_trapped};
488
489     if ($ARGS{PLATFORM} eq 'vms') {
490         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
491         ++$skip{PL_sig_ignoring};
492     }
493 }
494
495 unless ($define{USE_LOCALE_COLLATE}) {
496     ++$skip{$_} foreach qw(
497                     PL_collation_ix
498                     PL_collation_name
499                     PL_collation_standard
500                     PL_collxfrm_base
501                     PL_collxfrm_mult
502                     Perl_sv_collxfrm
503                     Perl_sv_collxfrm_flags
504                          );
505 }
506
507 unless ($define{USE_LOCALE_NUMERIC}) {
508     ++$skip{$_} foreach qw(
509                     PL_numeric_local
510                     PL_numeric_name
511                     PL_numeric_radix_sv
512                     PL_numeric_standard
513                          );
514 }
515
516 unless ($define{HAVE_INTERP_INTERN}) {
517     ++$skip{$_} foreach qw(
518                     Perl_sys_intern_clear
519                     Perl_sys_intern_dup
520                     Perl_sys_intern_init
521                     PL_sys_intern
522                          );
523 }
524
525 if ($define{HAS_SIGNBIT}) {
526     ++$skip{Perl_signbit};
527 }
528
529 if ($define{'PERL_GLOBAL_STRUCT'}) {
530     readvar('perlvars.h', \%skip);
531     # This seems like the least ugly way to cope with the fact that PL_sh_path
532     # is mentioned in perlvar.h and globvar.sym, and always exported.
533     delete $skip{PL_sh_path};
534     ++$export{Perl_GetVars};
535     try_symbols(qw(PL_Vars PL_VarsPtr)) unless $ARGS{CCTYPE} eq 'GCC';
536 } else {
537     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
538 }
539
540 # functions from *.sym files
541
542 my @syms = qw(globvar.sym);
543
544 # Symbols that are the public face of the PerlIO layers implementation
545 # These are in _addition to_ the public face of the abstraction
546 # and need to be exported to allow XS modules to implement layers
547 my @layer_syms = qw(
548                     PerlIOBase_binmode
549                     PerlIOBase_clearerr
550                     PerlIOBase_close
551                     PerlIOBase_dup
552                     PerlIOBase_eof
553                     PerlIOBase_error
554                     PerlIOBase_fileno
555                     PerlIOBase_open
556                     PerlIOBase_noop_fail
557                     PerlIOBase_noop_ok
558                     PerlIOBase_popped
559                     PerlIOBase_pushed
560                     PerlIOBase_read
561                     PerlIOBase_setlinebuf
562                     PerlIOBase_unread
563                     PerlIOBuf_bufsiz
564                     PerlIOBuf_close
565                     PerlIOBuf_dup
566                     PerlIOBuf_fill
567                     PerlIOBuf_flush
568                     PerlIOBuf_get_base
569                     PerlIOBuf_get_cnt
570                     PerlIOBuf_get_ptr
571                     PerlIOBuf_open
572                     PerlIOBuf_popped
573                     PerlIOBuf_pushed
574                     PerlIOBuf_read
575                     PerlIOBuf_seek
576                     PerlIOBuf_set_ptrcnt
577                     PerlIOBuf_tell
578                     PerlIOBuf_unread
579                     PerlIOBuf_write
580                     PerlIO_allocate
581                     PerlIO_apply_layera
582                     PerlIO_apply_layers
583                     PerlIO_arg_fetch
584                     PerlIO_debug
585                     PerlIO_define_layer
586                     PerlIO_find_layer
587                     PerlIO_isutf8
588                     PerlIO_layer_fetch
589                     PerlIO_list_alloc
590                     PerlIO_list_free
591                     PerlIO_modestr
592                     PerlIO_parse_layers
593                     PerlIO_pending
594                     PerlIO_perlio
595                     PerlIO_pop
596                     PerlIO_push
597                     PerlIO_sv_dup
598                     Perl_PerlIO_clearerr
599                     Perl_PerlIO_close
600                     Perl_PerlIO_context_layers
601                     Perl_PerlIO_eof
602                     Perl_PerlIO_error
603                     Perl_PerlIO_fileno
604                     Perl_PerlIO_fill
605                     Perl_PerlIO_flush
606                     Perl_PerlIO_get_base
607                     Perl_PerlIO_get_bufsiz
608                     Perl_PerlIO_get_cnt
609                     Perl_PerlIO_get_ptr
610                     Perl_PerlIO_read
611                     Perl_PerlIO_seek
612                     Perl_PerlIO_set_cnt
613                     Perl_PerlIO_set_ptrcnt
614                     Perl_PerlIO_setlinebuf
615                     Perl_PerlIO_stderr
616                     Perl_PerlIO_stdin
617                     Perl_PerlIO_stdout
618                     Perl_PerlIO_tell
619                     Perl_PerlIO_unread
620                     Perl_PerlIO_write
621 );
622 if ($ARGS{PLATFORM} eq 'netware') {
623     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
624 }
625
626 if ($define{'USE_PERLIO'}) {
627     # Export the symols that make up the PerlIO abstraction, regardless
628     # of its implementation - read from a file
629     push @syms, 'perlio.sym';
630
631     # This part is then dependent on how the abstraction is implemented
632     if ($define{'USE_SFIO'}) {
633         # Old legacy non-stdio "PerlIO"
634         ++$skip{$_} foreach @layer_syms;
635         ++$skip{perlsio_binmode};
636         # SFIO defines most of the PerlIO routines as macros
637         # So undo most of what $perlio_sym has just done - d'oh !
638         # Perhaps it would be better to list the ones which do exist
639         # And emit them
640         ++$skip{$_} foreach qw(
641                          PerlIO_canset_cnt
642                          PerlIO_clearerr
643                          PerlIO_close
644                          PerlIO_eof
645                          PerlIO_error
646                          PerlIO_exportFILE
647                          PerlIO_fast_gets
648                          PerlIO_fdopen
649                          PerlIO_fileno
650                          PerlIO_findFILE
651                          PerlIO_flush
652                          PerlIO_get_base
653                          PerlIO_get_bufsiz
654                          PerlIO_get_cnt
655                          PerlIO_get_ptr
656                          PerlIO_getc
657                          PerlIO_getname
658                          PerlIO_has_base
659                          PerlIO_has_cntptr
660                          PerlIO_importFILE
661                          PerlIO_open
662                          PerlIO_printf
663                          PerlIO_putc
664                          PerlIO_puts
665                          PerlIO_read
666                          PerlIO_releaseFILE
667                          PerlIO_reopen
668                          PerlIO_rewind
669                          PerlIO_seek
670                          PerlIO_set_cnt
671                          PerlIO_set_ptrcnt
672                          PerlIO_setlinebuf
673                          PerlIO_sprintf
674                          PerlIO_stderr
675                          PerlIO_stdin
676                          PerlIO_stdout
677                          PerlIO_stdoutf
678                          PerlIO_tell
679                          PerlIO_ungetc
680                          PerlIO_vprintf
681                          PerlIO_write
682                          PerlIO_perlio
683                          Perl_PerlIO_clearerr
684                          Perl_PerlIO_close
685                          Perl_PerlIO_eof
686                          Perl_PerlIO_error
687                          Perl_PerlIO_fileno
688                          Perl_PerlIO_fill
689                          Perl_PerlIO_flush
690                          Perl_PerlIO_get_base
691                          Perl_PerlIO_get_bufsiz
692                          Perl_PerlIO_get_cnt
693                          Perl_PerlIO_get_ptr
694                          Perl_PerlIO_read
695                          Perl_PerlIO_seek
696                          Perl_PerlIO_set_cnt
697                          Perl_PerlIO_set_ptrcnt
698                          Perl_PerlIO_setlinebuf
699                          Perl_PerlIO_stderr
700                          Perl_PerlIO_stdin
701                          Perl_PerlIO_stdout
702                          Perl_PerlIO_tell
703                          Perl_PerlIO_unread
704                          Perl_PerlIO_write
705                          PL_def_layerlist
706                          PL_known_layers
707                          PL_perlio
708                              );
709     }
710     else {
711         # PerlIO with layers - export implementation
712         try_symbols(@layer_syms, 'perlsio_binmode');
713     }
714 } else {
715         # -Uuseperlio
716         # Skip the PerlIO layer symbols - although
717         # nothing should have exported them anyway.
718         ++$skip{$_} foreach @layer_syms;
719         ++$skip{$_} foreach qw(
720                         perlsio_binmode
721                         PL_def_layerlist
722                         PL_known_layers
723                         PL_perlio
724                         PL_perlio_debug_fd
725                         PL_perlio_fd_refcnt
726                         PL_perlio_fd_refcnt_size
727                         PL_perlio_mutex
728                              );
729
730         # Also do NOT add abstraction symbols from $perlio_sym
731         # abstraction is done as #define to stdio
732         # Remaining remnants that _may_ be functions are handled below.
733 }
734
735 ###############################################################################
736
737 # At this point all skip lists should be completed, as we are about to test
738 # many symbols against them.
739
740 {
741     my %seen;
742     my ($embed) = setup_embed($ARGS{TARG_DIR});
743
744     foreach (@$embed) {
745         my ($flags, $retval, $func, @args) = @$_;
746         next unless $func;
747         if ($flags =~ /[AX]/ && $flags !~ /[xm]/ || $flags =~ /b/) {
748             # public API, so export
749
750             # If a function is defined twice, for example before and after
751             # an #else, only export its name once. Important to do this test
752             # within the block, as the *first* definition may have flags which
753             # mean "don't export"
754             next if $seen{$func}++;
755             $func = "Perl_$func" if $flags =~ /[pbX]/;
756             ++$export{$func} unless exists $skip{$func};
757         }
758     }
759 }
760
761 foreach (@syms) {
762     my $syms = $ARGS{TARG_DIR} . $_;
763     open my $global, '<', $syms or die "failed to open $syms: $!\n";
764     # Functions already have a Perl_ prefix
765     # Variables need a PL_ prefix
766     my $prefix = $syms =~ /var\.sym$/i ? 'PL_' : '';
767     while (<$global>) {
768         next unless /^([A-Za-z].*)/;
769         my $symbol = "$prefix$1";
770         ++$export{$symbol} unless exists $skip{$symbol};
771     }
772 }
773
774 # variables
775
776 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
777     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
778     # XXX AIX seems to want the perlvars.h symbols, for some reason
779     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
780         readvar('perlvars.h', \%export);
781     }
782 }
783 else {
784     unless ($define{'PERL_GLOBAL_STRUCT'}) {
785         readvar('perlvars.h', \%export);
786     }
787     unless ($define{MULTIPLICITY}) {
788         readvar('intrpvar.h', \%export);
789     }
790 }
791
792 # Oddities from PerlIO
793 # All have alternate implementations in perlio.c, so always exist.
794 # Should they be considered to be part of the API?
795 try_symbols(qw(
796                     PerlIO_binmode
797                     PerlIO_getpos
798                     PerlIO_init
799                     PerlIO_setpos
800                     PerlIO_sprintf
801                     PerlIO_tmpfile
802                     PerlIO_vsprintf
803              ));
804
805 if ($ARGS{PLATFORM} eq 'win32') {
806     try_symbols(qw(
807                                  setgid
808                                  setuid
809                                  win32_free_childdir
810                                  win32_free_childenv
811                                  win32_get_childdir
812                                  win32_get_childenv
813                                  win32_spawnvp
814                  ));
815 }
816
817 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
818     try_symbols(qw(
819                             Perl_init_os_extras
820                             Perl_thread_create
821                             Perl_win32_init
822                             Perl_win32_term
823                             RunPerl
824                             win32_async_check
825                             win32_errno
826                             win32_environ
827                             win32_abort
828                             win32_fstat
829                             win32_stat
830                             win32_pipe
831                             win32_popen
832                             win32_pclose
833                             win32_rename
834                             win32_setmode
835                             win32_chsize
836                             win32_lseek
837                             win32_tell
838                             win32_dup
839                             win32_dup2
840                             win32_open
841                             win32_close
842                             win32_eof
843                             win32_isatty
844                             win32_read
845                             win32_write
846                             win32_mkdir
847                             win32_rmdir
848                             win32_chdir
849                             win32_flock
850                             win32_execv
851                             win32_execvp
852                             win32_htons
853                             win32_ntohs
854                             win32_htonl
855                             win32_ntohl
856                             win32_inet_addr
857                             win32_inet_ntoa
858                             win32_socket
859                             win32_bind
860                             win32_listen
861                             win32_accept
862                             win32_connect
863                             win32_send
864                             win32_sendto
865                             win32_recv
866                             win32_recvfrom
867                             win32_shutdown
868                             win32_closesocket
869                             win32_ioctlsocket
870                             win32_setsockopt
871                             win32_getsockopt
872                             win32_getpeername
873                             win32_getsockname
874                             win32_gethostname
875                             win32_gethostbyname
876                             win32_gethostbyaddr
877                             win32_getprotobyname
878                             win32_getprotobynumber
879                             win32_getservbyname
880                             win32_getservbyport
881                             win32_select
882                             win32_endhostent
883                             win32_endnetent
884                             win32_endprotoent
885                             win32_endservent
886                             win32_getnetent
887                             win32_getnetbyname
888                             win32_getnetbyaddr
889                             win32_getprotoent
890                             win32_getservent
891                             win32_sethostent
892                             win32_setnetent
893                             win32_setprotoent
894                             win32_setservent
895                             win32_getenv
896                             win32_putenv
897                             win32_perror
898                             win32_malloc
899                             win32_calloc
900                             win32_realloc
901                             win32_free
902                             win32_sleep
903                             win32_times
904                             win32_access
905                             win32_alarm
906                             win32_chmod
907                             win32_open_osfhandle
908                             win32_get_osfhandle
909                             win32_ioctl
910                             win32_link
911                             win32_unlink
912                             win32_utime
913                             win32_gettimeofday
914                             win32_uname
915                             win32_wait
916                             win32_waitpid
917                             win32_kill
918                             win32_str_os_error
919                             win32_opendir
920                             win32_readdir
921                             win32_telldir
922                             win32_seekdir
923                             win32_rewinddir
924                             win32_closedir
925                             win32_longpath
926                             win32_ansipath
927                             win32_os_id
928                             win32_getpid
929                             win32_crypt
930                             win32_dynaload
931                             win32_clearenv
932                             win32_stdin
933                             win32_stdout
934                             win32_stderr
935                             win32_ferror
936                             win32_feof
937                             win32_strerror
938                             win32_fprintf
939                             win32_printf
940                             win32_vfprintf
941                             win32_vprintf
942                             win32_fread
943                             win32_fwrite
944                             win32_fopen
945                             win32_fdopen
946                             win32_freopen
947                             win32_fclose
948                             win32_fputs
949                             win32_fputc
950                             win32_ungetc
951                             win32_getc
952                             win32_fileno
953                             win32_clearerr
954                             win32_fflush
955                             win32_ftell
956                             win32_fseek
957                             win32_fgetpos
958                             win32_fsetpos
959                             win32_rewind
960                             win32_tmpfile
961                             win32_setbuf
962                             win32_setvbuf
963                             win32_flushall
964                             win32_fcloseall
965                             win32_fgets
966                             win32_gets
967                             win32_fgetc
968                             win32_putc
969                             win32_puts
970                             win32_getchar
971                             win32_putchar
972                  ));
973 }
974 elsif ($ARGS{PLATFORM} eq 'vms') {
975     try_symbols(qw(
976                       Perl_cando
977                       Perl_cando_by_name
978                       Perl_closedir
979                       Perl_csighandler_init
980                       Perl_do_rmdir
981                       Perl_fileify_dirspec
982                       Perl_fileify_dirspec_ts
983                       Perl_fileify_dirspec_utf8
984                       Perl_fileify_dirspec_utf8_ts
985                       Perl_flex_fstat
986                       Perl_flex_lstat
987                       Perl_flex_stat
988                       Perl_kill_file
989                       Perl_my_chdir
990                       Perl_my_chmod
991                       Perl_my_crypt
992                       Perl_my_endpwent
993                       Perl_my_fclose
994                       Perl_my_fdopen
995                       Perl_my_fgetname
996                       Perl_my_flush
997                       Perl_my_fwrite
998                       Perl_my_gconvert
999                       Perl_my_getenv
1000                       Perl_my_getenv_len
1001                       Perl_my_getlogin
1002                       Perl_my_getpwnam
1003                       Perl_my_getpwuid
1004                       Perl_my_gmtime
1005                       Perl_my_kill
1006                       Perl_my_localtime
1007                       Perl_my_mkdir
1008                       Perl_my_sigaction
1009                       Perl_my_symlink
1010                       Perl_my_time
1011                       Perl_my_tmpfile
1012                       Perl_my_trnlnm
1013                       Perl_my_utime
1014                       Perl_my_waitpid
1015                       Perl_opendir
1016                       Perl_pathify_dirspec
1017                       Perl_pathify_dirspec_ts
1018                       Perl_pathify_dirspec_utf8
1019                       Perl_pathify_dirspec_utf8_ts
1020                       Perl_readdir
1021                       Perl_readdir_r
1022                       Perl_rename
1023                       Perl_rmscopy
1024                       Perl_rmsexpand
1025                       Perl_rmsexpand_ts
1026                       Perl_rmsexpand_utf8
1027                       Perl_rmsexpand_utf8_ts
1028                       Perl_seekdir
1029                       Perl_sig_to_vmscondition
1030                       Perl_telldir
1031                       Perl_tounixpath
1032                       Perl_tounixpath_ts
1033                       Perl_tounixpath_utf8
1034                       Perl_tounixpath_utf8_ts
1035                       Perl_tounixspec
1036                       Perl_tounixspec_ts
1037                       Perl_tounixspec_utf8
1038                       Perl_tounixspec_utf8_ts
1039                       Perl_tovmspath
1040                       Perl_tovmspath_ts
1041                       Perl_tovmspath_utf8
1042                       Perl_tovmspath_utf8_ts
1043                       Perl_tovmsspec
1044                       Perl_tovmsspec_ts
1045                       Perl_tovmsspec_utf8
1046                       Perl_tovmsspec_utf8_ts
1047                       Perl_trim_unixpath
1048                       Perl_vms_case_tolerant
1049                       Perl_vms_do_aexec
1050                       Perl_vms_do_exec
1051                       Perl_vms_image_init
1052                       Perl_vms_realpath
1053                       Perl_vmssetenv
1054                       Perl_vmssetuserlnm
1055                       Perl_vmstrnenv
1056                       PerlIO_openn
1057                  ));
1058 }
1059 elsif ($ARGS{PLATFORM} eq 'os2') {
1060     try_symbols(qw(
1061                       ctermid
1062                       get_sysinfo
1063                       Perl_OS2_init
1064                       Perl_OS2_init3
1065                       Perl_OS2_term
1066                       OS2_Perl_data
1067                       dlopen
1068                       dlsym
1069                       dlerror
1070                       dlclose
1071                       dup2
1072                       dup
1073                       my_tmpfile
1074                       my_tmpnam
1075                       my_flock
1076                       my_rmdir
1077                       my_mkdir
1078                       my_getpwuid
1079                       my_getpwnam
1080                       my_getpwent
1081                       my_setpwent
1082                       my_endpwent
1083                       fork_with_resources
1084                       croak_with_os2error
1085                       setgrent
1086                       endgrent
1087                       getgrent
1088                       malloc_mutex
1089                       threads_mutex
1090                       nthreads
1091                       nthreads_cond
1092                       os2_cond_wait
1093                       os2_stat
1094                       os2_execname
1095                       async_mssleep
1096                       msCounter
1097                       InfoTable
1098                       pthread_join
1099                       pthread_create
1100                       pthread_detach
1101                       XS_Cwd_change_drive
1102                       XS_Cwd_current_drive
1103                       XS_Cwd_extLibpath
1104                       XS_Cwd_extLibpath_set
1105                       XS_Cwd_sys_abspath
1106                       XS_Cwd_sys_chdir
1107                       XS_Cwd_sys_cwd
1108                       XS_Cwd_sys_is_absolute
1109                       XS_Cwd_sys_is_relative
1110                       XS_Cwd_sys_is_rooted
1111                       XS_DynaLoader_mod2fname
1112                       XS_File__Copy_syscopy
1113                       Perl_Register_MQ
1114                       Perl_Deregister_MQ
1115                       Perl_Serve_Messages
1116                       Perl_Process_Messages
1117                       init_PMWIN_entries
1118                       PMWIN_entries
1119                       Perl_hab_GET
1120                       loadByOrdinal
1121                       pExtFCN
1122                       os2error
1123                       ResetWinError
1124                       CroakWinError
1125                       PL_do_undump
1126                  ));
1127 }
1128 elsif ($ARGS{PLATFORM} eq 'netware') {
1129     try_symbols(qw(
1130                         Perl_init_os_extras
1131                         Perl_thread_create
1132                         Perl_nw5_init
1133                         RunPerl
1134                         AllocStdPerl
1135                         FreeStdPerl
1136                         do_spawn2
1137                         do_aspawn
1138                         nw_uname
1139                         nw_stdin
1140                         nw_stdout
1141                         nw_stderr
1142                         nw_feof
1143                         nw_ferror
1144                         nw_fopen
1145                         nw_fclose
1146                         nw_clearerr
1147                         nw_getc
1148                         nw_fgets
1149                         nw_fputc
1150                         nw_fputs
1151                         nw_fflush
1152                         nw_ungetc
1153                         nw_fileno
1154                         nw_fdopen
1155                         nw_freopen
1156                         nw_fread
1157                         nw_fwrite
1158                         nw_setbuf
1159                         nw_setvbuf
1160                         nw_vfprintf
1161                         nw_ftell
1162                         nw_fseek
1163                         nw_rewind
1164                         nw_tmpfile
1165                         nw_fgetpos
1166                         nw_fsetpos
1167                         nw_dup
1168                         nw_access
1169                         nw_chmod
1170                         nw_chsize
1171                         nw_close
1172                         nw_dup2
1173                         nw_flock
1174                         nw_isatty
1175                         nw_link
1176                         nw_lseek
1177                         nw_stat
1178                         nw_mktemp
1179                         nw_open
1180                         nw_read
1181                         nw_rename
1182                         nw_setmode
1183                         nw_unlink
1184                         nw_utime
1185                         nw_write
1186                         nw_chdir
1187                         nw_rmdir
1188                         nw_closedir
1189                         nw_opendir
1190                         nw_readdir
1191                         nw_rewinddir
1192                         nw_seekdir
1193                         nw_telldir
1194                         nw_htonl
1195                         nw_htons
1196                         nw_ntohl
1197                         nw_ntohs
1198                         nw_accept
1199                         nw_bind
1200                         nw_connect
1201                         nw_endhostent
1202                         nw_endnetent
1203                         nw_endprotoent
1204                         nw_endservent
1205                         nw_gethostbyaddr
1206                         nw_gethostbyname
1207                         nw_gethostent
1208                         nw_gethostname
1209                         nw_getnetbyaddr
1210                         nw_getnetbyname
1211                         nw_getnetent
1212                         nw_getpeername
1213                         nw_getprotobyname
1214                         nw_getprotobynumber
1215                         nw_getprotoent
1216                         nw_getservbyname
1217                         nw_getservbyport
1218                         nw_getservent
1219                         nw_getsockname
1220                         nw_getsockopt
1221                         nw_inet_addr
1222                         nw_listen
1223                         nw_socket
1224                         nw_recv
1225                         nw_recvfrom
1226                         nw_select
1227                         nw_send
1228                         nw_sendto
1229                         nw_sethostent
1230                         nw_setnetent
1231                         nw_setprotoent
1232                         nw_setservent
1233                         nw_setsockopt
1234                         nw_inet_ntoa
1235                         nw_shutdown
1236                         nw_crypt
1237                         nw_execvp
1238                         nw_kill
1239                         nw_Popen
1240                         nw_Pclose
1241                         nw_Pipe
1242                         nw_times
1243                         nw_waitpid
1244                         nw_getpid
1245                         nw_spawnvp
1246                         nw_os_id
1247                         nw_open_osfhandle
1248                         nw_get_osfhandle
1249                         nw_abort
1250                         nw_sleep
1251                         nw_wait
1252                         nw_dynaload
1253                         nw_strerror
1254                         fnFpSetMode
1255                         fnInsertHashListAddrs
1256                         fnGetHashListAddrs
1257                         Perl_deb
1258                         Perl_sv_setsv
1259                         Perl_sv_catsv
1260                         Perl_sv_catpvn
1261                         Perl_sv_2pv
1262                         nw_freeenviron
1263                         Remove_Thread_Ctx
1264                  ));
1265 }
1266
1267 # When added this code was only run for Win32 and WinCE
1268 # Currently only Win32 links static extensions into the shared library.
1269 # The WinCE makefile doesn't appear to support static extensions, so this code
1270 # can't have any effect there.
1271 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1272 # list of dynamic extensions, and the rules to build them)
1273 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1274 # static extensions with -fPIC, but links them to perl, not libperl.so
1275 # The VMS build scripts don't yet implement static extensions at all.
1276
1277 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1278     # records of type boot_module for statically linked modules (except Dynaloader)
1279     my $static_ext = $Config{static_ext} // "";
1280     $static_ext =~ s/\//__/g;
1281     $static_ext =~ s/\bDynaLoader\b//;
1282     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1283     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1284 }
1285
1286 if ($ARGS{PLATFORM} eq 'os2') {
1287     my (%mapped, @missing);
1288     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1289     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1290     close MAP or die 'Cannot close miniperl.map';
1291
1292     @missing = grep { !exists $mapped{$_} }
1293                     keys %export;
1294     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1295     delete $export{$_} foreach @missing;
1296 }
1297
1298 ###############################################################################
1299
1300 # Now all symbols should be defined because next we are going to output them.
1301
1302 # Start with platform specific headers:
1303
1304 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1305     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1306         : "perl$Config{api_revision}$Config{api_version}";
1307     print "LIBRARY $dll\n";
1308     # The DESCRIPTION module definition file statement is not supported
1309     # by VC7 onwards.
1310     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1311         print "DESCRIPTION 'Perl interpreter'\n";
1312     }
1313     print "EXPORTS\n";
1314 }
1315 elsif ($ARGS{PLATFORM} eq 'os2') {
1316     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1317     $v .= '-thread' if $Config{archname} =~ /-thread/;
1318     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1319     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1320     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1321     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1322     print <<"---EOP---";
1323 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1324 $d
1325 STACKSIZE 32768
1326 CODE LOADONCALL
1327 DATA LOADONCALL NONSHARED MULTIPLE
1328 EXPORTS
1329 ---EOP---
1330 }
1331 elsif ($ARGS{PLATFORM} eq 'aix') {
1332     my $OSVER = `uname -v`;
1333     chop $OSVER;
1334     my $OSREL = `uname -r`;
1335     chop $OSREL;
1336     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1337         print "#! ..\n";
1338     } else {
1339         print "#!\n";
1340     }
1341 }
1342 elsif ($ARGS{PLATFORM} eq 'netware') {
1343         if ($ARGS{FILETYPE} eq 'def') {
1344         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1345         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1346         print "EXPORTS\n";
1347         }
1348 }
1349
1350 # Then the symbols
1351
1352 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1353 foreach my $symbol (@symbols) {
1354     if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1355         print "\t$symbol\n";
1356     }
1357     elsif ($ARGS{PLATFORM} eq 'os2') {
1358         printf qq(    %-31s \@%s\n),
1359           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1360         printf qq(    %-31s \@%s\n),
1361           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1362           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1363           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1364     }
1365     elsif ($ARGS{PLATFORM} eq 'netware') {
1366         print "\t$symbol,\n";
1367     } else {
1368         print "$symbol\n";
1369     }
1370 }
1371
1372 # Then platform specific footers.
1373
1374 if ($ARGS{PLATFORM} eq 'os2') {
1375     print <<EOP;
1376     dll_perlmain=main
1377     fill_extLibpath
1378     dir_subst
1379     Perl_OS2_handler_install
1380
1381 ; LAST_ORDINAL=$sym_ord
1382 EOP
1383 }
1384
1385 1;