add a small buffer to gv_stash_name
[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 my $fold;
36 my %ARGS;
37 my %define;
38
39 BEGIN {
40     BEGIN { unshift @INC, "lib" }
41     use Config;
42     use strict;
43
44     %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
45
46     sub process_cc_flags {
47         foreach (map {split /\s+/, $_} @_) {
48             $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
49         }
50     }
51
52     while (@ARGV) {
53         my $flag = shift;
54         if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
55             process_cc_flags($1);
56         } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
57             $ARGS{$1} = $2;
58         } elsif ($flag eq '--sort-fold') {
59             ++$fold;
60         }
61     }
62     my @PLATFORM = qw(aix win32 wince os2 netware vms test);
63     my %PLATFORM;
64     @PLATFORM{@PLATFORM} = ();
65
66     die "PLATFORM undefined, must be one of: @PLATFORM\n"
67         unless defined $ARGS{PLATFORM};
68     die "PLATFORM must be one of: @PLATFORM\n"
69         unless exists $PLATFORM{$ARGS{PLATFORM}};
70 }
71 use constant PLATFORM => $ARGS{PLATFORM};
72
73 require "./$ARGS{TARG_DIR}regen/embed_lib.pl";
74
75 # Is the following guard strictly necessary? Added during refactoring
76 # to keep the same behaviour when merging other code into here.
77 process_cc_flags(@Config{qw(ccflags optimize)})
78     if $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'wince'
79     && $ARGS{PLATFORM} ne 'netware';
80
81 # Add the compile-time options that miniperl was built with to %define.
82 # On Win32 these are not the same options as perl itself will be built
83 # with since miniperl is built with a canned config (one of the win32/
84 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
85 # but they do include some #define's that are hard-coded in various
86 # source files and header files and don't include any BUILDOPT's that
87 # the user might have chosen to disable because the canned configs are
88 # minimal configs that don't include any of those options.
89
90 #don't use the host Perl's -V defines for the WinCE Perl
91 if($ARGS{PLATFORM} ne 'wince') {
92     my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
93     print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
94     $define{$_} = 1 foreach @options;
95 }
96
97 my %exportperlmalloc =
98     (
99        Perl_malloc              =>      "malloc",
100        Perl_mfree               =>      "free",
101        Perl_realloc             =>      "realloc",
102        Perl_calloc              =>      "calloc",
103     );
104
105 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
106
107 my $config_h = 'config.h';
108 open(CFG, '<', $config_h) || die "Cannot open $config_h: $!\n";
109 while (<CFG>) {
110     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
111                                            |SPRINTF_RETURNS_STRLEN
112                                            |KILL_BY_SIGPRC
113                                            |(?:PERL|USE|HAS)_\w+)\b/x;
114 }
115 close(CFG);
116
117 # perl.h logic duplication begins
118
119 if ($define{USE_ITHREADS}) {
120     if (!$define{MULTIPLICITY}) {
121         $define{MULTIPLICITY} = 1;
122     }
123 }
124
125 $define{PERL_IMPLICIT_CONTEXT} ||=
126     $define{USE_ITHREADS} ||
127     $define{MULTIPLICITY} ;
128
129 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
130     $define{USE_REENTRANT_API} = 1;
131 }
132
133 # perl.h logic duplication ends
134
135 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
136      unless $ARGS{PLATFORM} eq 'test';
137
138 my $sym_ord = 0;
139 my %ordinal;
140
141 if ($ARGS{PLATFORM} eq 'os2') {
142     if (open my $fh, '<', 'perl5.def') {
143       while (<$fh>) {
144         last if /^\s*EXPORTS\b/;
145       }
146       while (<$fh>) {
147         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
148         # This allows skipping ordinals which were used in older versions
149         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
150       }
151       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
152     }
153 }
154
155 my %skip;
156 # All platforms export boot_DynaLoader unconditionally.
157 my %export = ( boot_DynaLoader => 1 );
158
159 sub try_symbols {
160     foreach my $symbol (@_) {
161         ++$export{$symbol} unless exists $skip{$symbol};
162     }
163 }
164
165 sub readvar {
166     # $hash is the hash that we're adding to. For one of our callers, it will
167     # actually be the skip hash but that doesn't affect the intent of what
168     # we're doing, as in that case we skip adding something to the skip hash
169     # for the second time.
170
171     my $file = $ARGS{TARG_DIR} . shift;
172     my $hash = shift;
173     my $proc = shift;
174     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
175
176     while (<$vars>) {
177         # All symbols have a Perl_ prefix because that's what embed.h sticks
178         # in front of them.  The A?I?S?C? is strictly speaking wrong.
179         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
180
181         my $var = "PL_$3";
182         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
183         ++$hash->{$symbol} unless exists $skip{$var};
184     }
185 }
186
187 if ($ARGS{PLATFORM} ne 'os2') {
188     ++$skip{$_} foreach qw(
189                      PL_cryptseen
190                      PL_opsave
191                      Perl_GetVars
192                      Perl_dump_fds
193                      Perl_my_bcopy
194                      Perl_my_bzero
195                      Perl_my_chsize
196                      Perl_my_htonl
197                      Perl_my_memcmp
198                      Perl_my_memset
199                      Perl_my_ntohl
200                      Perl_my_swap
201                          );
202     if ($ARGS{PLATFORM} eq 'vms') {
203         ++$skip{PL_statusvalue_posix};
204         # This is a wrapper if we have symlink, not a replacement
205         # if we don't.
206         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
207     } else {
208         ++$skip{PL_statusvalue_vms};
209         ++$skip{PL_perllib_sep};
210         if ($ARGS{PLATFORM} ne 'aix') {
211             ++$skip{$_} foreach qw(
212                                 PL_DBcv
213                                 PL_generation
214                                 PL_lastgotoprobe
215                                 PL_modcount
216                                 main
217                                  );
218         }
219     }
220 }
221
222 if ($ARGS{PLATFORM} ne 'vms') {
223     # VMS does its own thing for these symbols.
224     ++$skip{$_} foreach qw(
225                         PL_sig_handlers_initted
226                         PL_sig_ignoring
227                         PL_sig_defaulting
228                          );
229     if ($ARGS{PLATFORM} ne 'win32') {
230         ++$skip{$_} foreach qw(
231                             Perl_do_spawn
232                             Perl_do_spawn_nowait
233                             Perl_do_aspawn
234                              );
235     }
236 }
237
238 if ($ARGS{PLATFORM} ne 'win32') {
239     ++$skip{$_} foreach qw(
240                     Perl_my_setlocale
241                          );
242 }
243
244 unless ($define{UNLINK_ALL_VERSIONS}) {
245     ++$skip{Perl_unlnk};
246 }
247
248 unless ($define{'DEBUGGING'}) {
249     ++$skip{$_} foreach qw(
250                     Perl_debop
251                     Perl_debprofdump
252                     Perl_debstack
253                     Perl_debstackptrs
254                     Perl_pad_sv
255                     Perl_pad_setsv
256                     Perl__setlocale_debug_string
257                     Perl_set_padlist
258                     Perl_hv_assert
259                     PL_watchaddr
260                     PL_watchok
261                     PL_watch_pvx
262                          );
263 }
264
265 if ($define{'PERL_IMPLICIT_SYS'}) {
266     ++$skip{$_} foreach qw(
267                     Perl_my_popen
268                     Perl_my_pclose
269                          );
270     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
271     ++$export{perl_clone_host} if $define{USE_ITHREADS};
272 }
273 else {
274     ++$skip{$_} foreach qw(
275                     PL_Mem
276                     PL_MemShared
277                     PL_MemParse
278                     PL_Env
279                     PL_StdIO
280                     PL_LIO
281                     PL_Dir
282                     PL_Sock
283                     PL_Proc
284                     perl_alloc_using
285                     perl_clone_using
286                          );
287 }
288
289 if (!$define{'PERL_COPY_ON_WRITE'} || $define{'PERL_NO_COW'}) {
290     ++$skip{Perl_sv_setsv_cow};
291 }
292
293 unless ($define{PERL_SAWAMPERSAND}) {
294     ++$skip{PL_sawampersand};
295 }
296
297 unless ($define{'USE_REENTRANT_API'}) {
298     ++$skip{PL_reentrant_buffer};
299 }
300
301 if ($define{'MYMALLOC'}) {
302     try_symbols(qw(
303                     Perl_dump_mstats
304                     Perl_get_mstats
305                     Perl_strdup
306                     Perl_putenv
307                     MallocCfg_ptr
308                     MallocCfgP_ptr
309                     ));
310     unless ($define{USE_ITHREADS}) {
311         ++$skip{PL_malloc_mutex}
312     }
313 }
314 else {
315     ++$skip{$_} foreach qw(
316                     PL_malloc_mutex
317                     Perl_dump_mstats
318                     Perl_get_mstats
319                     MallocCfg_ptr
320                     MallocCfgP_ptr
321                          );
322 }
323
324 if ($define{'PERL_USE_SAFE_PUTENV'}) {
325     ++$skip{PL_use_safe_putenv};
326 }
327
328 unless ($define{'USE_ITHREADS'}) {
329     ++$skip{PL_thr_key};
330 }
331
332 # USE_5005THREADS symbols. Kept as reference for easier removal
333 ++$skip{$_} foreach qw(
334                     PL_sv_mutex
335                     PL_strtab_mutex
336                     PL_svref_mutex
337                     PL_cred_mutex
338                     PL_eval_mutex
339                     PL_fdpid_mutex
340                     PL_sv_lock_mutex
341                     PL_eval_cond
342                     PL_eval_owner
343                     PL_threads_mutex
344                     PL_nthreads
345                     PL_nthreads_cond
346                     PL_threadnum
347                     PL_threadsv_names
348                     PL_thrsv
349                     PL_vtbl_mutex
350                     Perl_condpair_magic
351                     Perl_new_struct_thread
352                     Perl_per_thread_magicals
353                     Perl_thread_create
354                     Perl_find_threadsv
355                     Perl_unlock_condpair
356                     Perl_magic_mutexfree
357                     Perl_sv_lock
358                      );
359
360 unless ($define{'USE_ITHREADS'}) {
361     ++$skip{$_} foreach qw(
362                     PL_check_mutex
363                     PL_op_mutex
364                     PL_regex_pad
365                     PL_regex_padav
366                     PL_dollarzero_mutex
367                     PL_hints_mutex
368                     PL_locale_mutex
369                     PL_my_ctx_mutex
370                     PL_perlio_mutex
371                     PL_stashpad
372                     PL_stashpadix
373                     PL_stashpadmax
374                     Perl_alloccopstash
375                     Perl_allocfilegv
376                     Perl_clone_params_del
377                     Perl_clone_params_new
378                     Perl_parser_dup
379                     Perl_dirp_dup
380                     Perl_cx_dup
381                     Perl_si_dup
382                     Perl_any_dup
383                     Perl_ss_dup
384                     Perl_fp_dup
385                     Perl_gp_dup
386                     Perl_he_dup
387                     Perl_mg_dup
388                     Perl_re_dup_guts
389                     Perl_sv_dup
390                     Perl_sv_dup_inc
391                     Perl_rvpv_dup
392                     Perl_hek_dup
393                     Perl_sys_intern_dup
394                     perl_clone
395                     perl_clone_using
396                     Perl_stashpv_hvname_match
397                     Perl_regdupe_internal
398                     Perl_newPADOP
399                          );
400 }
401
402 unless ($define{'HAS_NEWLOCALE'} && ! $define{'NO_POSIX_2008_LOCALE'})
403 {
404     ++$skip{$_} foreach qw(
405         PL_C_locale_obj
406     );
407 }
408
409 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
410     ++$skip{$_} foreach qw(
411                     PL_my_cxt_index
412                     PL_my_cxt_list
413                     PL_my_cxt_size
414                     PL_my_cxt_keys
415                     Perl_croak_nocontext
416                     Perl_die_nocontext
417                     Perl_deb_nocontext
418                     Perl_form_nocontext
419                     Perl_load_module_nocontext
420                     Perl_mess_nocontext
421                     Perl_warn_nocontext
422                     Perl_warner_nocontext
423                     Perl_newSVpvf_nocontext
424                     Perl_sv_catpvf_nocontext
425                     Perl_sv_setpvf_nocontext
426                     Perl_sv_catpvf_mg_nocontext
427                     Perl_sv_setpvf_mg_nocontext
428                     Perl_my_cxt_init
429                     Perl_my_cxt_index
430                          );
431 }
432
433 unless ($define{'PERL_OP_PARENT'}) {
434     ++$skip{$_} foreach qw(
435                     Perl_op_parent
436                 );
437 }
438
439 unless ($define{'USE_DTRACE'}) {
440     ++$skip{$_} foreach qw(
441                     Perl_dtrace_probe_call
442                     Perl_dtrace_probe_load
443                     Perl_dtrace_probe_op
444                     Perl_dtrace_probe_phase
445                 );
446 }
447
448 unless ($define{'PERL_NEED_APPCTX'}) {
449     ++$skip{PL_appctx};
450 }
451
452 unless ($define{'PERL_NEED_TIMESBASE'}) {
453     ++$skip{PL_timesbase};
454 }
455
456 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
457     ++$skip{PL_sv_serial};
458 }
459
460 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
461     ++$skip{PL_dumper_fd};
462 }
463
464 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
465     ++$skip{Perl_gv_SVadd};
466 }
467
468 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
469     ++$skip{Perl_my_sprintf};
470 }
471
472 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
473     ++$skip{PL_pidstatus};
474 }
475
476 unless ($define{'PERL_TRACK_MEMPOOL'}) {
477     ++$skip{PL_memory_debug_header};
478 }
479
480 unless ($define{'MULTIPLICITY'}) {
481     ++$skip{$_} foreach qw(
482                     PL_interp_size
483                     PL_interp_size_5_18_0
484                     PL_sv_yes
485                     PL_sv_undef
486                     PL_sv_no
487                     PL_sv_zero
488                          );
489 }
490
491 unless ($define{'PERL_GLOBAL_STRUCT'}) {
492     ++$skip{PL_global_struct_size};
493 }
494
495 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
496     ++$skip{$_} foreach qw(
497                     PL_my_cxt_keys
498                     Perl_my_cxt_index
499                          );
500 }
501
502 unless ($define{HAS_MMAP}) {
503     ++$skip{PL_mmap_page_size};
504 }
505
506 if ($define{HAS_SIGACTION}) {
507     ++$skip{PL_sig_trapped};
508
509     if ($ARGS{PLATFORM} eq 'vms') {
510         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
511         ++$skip{PL_sig_ignoring};
512         ++$skip{PL_sig_handlers_initted} unless $define{KILL_BY_SIGPRC};
513     }
514 }
515
516 if ($ARGS{PLATFORM} eq 'vms' && !$define{KILL_BY_SIGPRC}) {
517     # FAKE_DEFAULT_SIGNAL_HANDLERS defined as KILL_BY_SIGPRC
518     ++$skip{Perl_csighandler_init};
519     ++$skip{Perl_my_kill};
520     ++$skip{Perl_sig_to_vmscondition};
521     ++$skip{PL_sig_defaulting};
522     ++$skip{PL_sig_handlers_initted} unless !$define{HAS_SIGACTION};
523 }
524
525 unless ($define{USE_LOCALE_COLLATE}) {
526     ++$skip{$_} foreach qw(
527                     PL_collation_ix
528                     PL_collation_name
529                     PL_collation_standard
530                     PL_collxfrm_base
531                     PL_collxfrm_mult
532                     Perl_sv_collxfrm
533                     Perl_sv_collxfrm_flags
534                          );
535 }
536
537 unless ($define{USE_LOCALE_NUMERIC}) {
538     ++$skip{$_} foreach qw(
539                     PL_numeric_local
540                     PL_numeric_name
541                     PL_numeric_radix_sv
542                     PL_numeric_standard
543                          );
544 }
545
546 unless ($define{'USE_C_BACKTRACE'}) {
547     ++$skip{Perl_get_c_backtrace_dump};
548     ++$skip{Perl_dump_c_backtrace};
549 }
550
551 unless ($define{HAVE_INTERP_INTERN}) {
552     ++$skip{$_} foreach qw(
553                     Perl_sys_intern_clear
554                     Perl_sys_intern_dup
555                     Perl_sys_intern_init
556                     PL_sys_intern
557                          );
558 }
559
560 if ($define{HAS_SIGNBIT}) {
561     ++$skip{Perl_signbit};
562 }
563
564 if ($define{'PERL_GLOBAL_STRUCT'}) {
565     readvar('perlvars.h', \%skip);
566     # This seems like the least ugly way to cope with the fact that PL_sh_path
567     # is mentioned in perlvar.h and globvar.sym, and always exported.
568     delete $skip{PL_sh_path};
569     ++$export{Perl_GetVars};
570     try_symbols(qw(PL_Vars PL_VarsPtr))
571       unless $ARGS{CCTYPE} eq 'GCC' || $define{PERL_GLOBAL_STRUCT_PRIVATE};
572 } else {
573     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
574 }
575
576 ++$skip{PL_op_exec_cnt}
577     unless $define{PERL_TRACE_OPS};
578
579 ++$skip{PL_hash_chars}
580     unless $define{PERL_USE_SINGLE_CHAR_HASH_CACHE};
581
582 # functions from *.sym files
583
584 my @syms = qw(globvar.sym);
585
586 # Symbols that are the public face of the PerlIO layers implementation
587 # These are in _addition to_ the public face of the abstraction
588 # and need to be exported to allow XS modules to implement layers
589 my @layer_syms = qw(
590                     PerlIOBase_binmode
591                     PerlIOBase_clearerr
592                     PerlIOBase_close
593                     PerlIOBase_dup
594                     PerlIOBase_eof
595                     PerlIOBase_error
596                     PerlIOBase_fileno
597                     PerlIOBase_open
598                     PerlIOBase_noop_fail
599                     PerlIOBase_noop_ok
600                     PerlIOBase_popped
601                     PerlIOBase_pushed
602                     PerlIOBase_read
603                     PerlIOBase_setlinebuf
604                     PerlIOBase_unread
605                     PerlIOBuf_bufsiz
606                     PerlIOBuf_close
607                     PerlIOBuf_dup
608                     PerlIOBuf_fill
609                     PerlIOBuf_flush
610                     PerlIOBuf_get_base
611                     PerlIOBuf_get_cnt
612                     PerlIOBuf_get_ptr
613                     PerlIOBuf_open
614                     PerlIOBuf_popped
615                     PerlIOBuf_pushed
616                     PerlIOBuf_read
617                     PerlIOBuf_seek
618                     PerlIOBuf_set_ptrcnt
619                     PerlIOBuf_tell
620                     PerlIOBuf_unread
621                     PerlIOBuf_write
622                     PerlIO_allocate
623                     PerlIO_apply_layera
624                     PerlIO_apply_layers
625                     PerlIO_arg_fetch
626                     PerlIO_debug
627                     PerlIO_define_layer
628                     PerlIO_find_layer
629                     PerlIO_isutf8
630                     PerlIO_layer_fetch
631                     PerlIO_list_alloc
632                     PerlIO_list_free
633                     PerlIO_modestr
634                     PerlIO_parse_layers
635                     PerlIO_pending
636                     PerlIO_perlio
637                     PerlIO_pop
638                     PerlIO_push
639                     PerlIO_sv_dup
640                     Perl_PerlIO_clearerr
641                     Perl_PerlIO_close
642                     Perl_PerlIO_context_layers
643                     Perl_PerlIO_eof
644                     Perl_PerlIO_error
645                     Perl_PerlIO_fileno
646                     Perl_PerlIO_fill
647                     Perl_PerlIO_flush
648                     Perl_PerlIO_get_base
649                     Perl_PerlIO_get_bufsiz
650                     Perl_PerlIO_get_cnt
651                     Perl_PerlIO_get_ptr
652                     Perl_PerlIO_read
653                     Perl_PerlIO_restore_errno
654                     Perl_PerlIO_save_errno
655                     Perl_PerlIO_seek
656                     Perl_PerlIO_set_cnt
657                     Perl_PerlIO_set_ptrcnt
658                     Perl_PerlIO_setlinebuf
659                     Perl_PerlIO_stderr
660                     Perl_PerlIO_stdin
661                     Perl_PerlIO_stdout
662                     Perl_PerlIO_tell
663                     Perl_PerlIO_unread
664                     Perl_PerlIO_write
665 );
666 if ($ARGS{PLATFORM} eq 'netware') {
667     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
668 }
669
670 # Export the symbols that make up the PerlIO abstraction, regardless
671 # of its implementation - read from a file
672 push @syms, 'perlio.sym';
673
674 # PerlIO with layers - export implementation
675 try_symbols(@layer_syms, 'perlsio_binmode');
676
677
678 unless ($define{'USE_QUADMATH'}) {
679   ++$skip{Perl_quadmath_format_needed};
680   ++$skip{Perl_quadmath_format_single};
681 }
682
683 ###############################################################################
684
685 # At this point all skip lists should be completed, as we are about to test
686 # many symbols against them.
687
688 {
689     my %seen;
690     my ($embed) = setup_embed($ARGS{TARG_DIR});
691
692     foreach (@$embed) {
693         my ($flags, $retval, $func, @args) = @$_;
694         next unless $func;
695         if (   ($flags =~ /[AX]/ && $flags !~ /[xmi]/)
696             || ($flags =~ /b/ && ! $define{'NO_MATHOMS'}))
697         {
698             # public API, so export
699
700             # If a function is defined twice, for example before and after
701             # an #else, only export its name once. Important to do this test
702             # within the block, as the *first* definition may have flags which
703             # mean "don't export"
704             next if $seen{$func}++;
705             # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
706             $func = "Perl_$func" if ($flags =~ /[pX]/ && $func !~ /^Perl_/);
707             ++$export{$func} unless exists $skip{$func};
708         }
709     }
710 }
711
712 foreach (@syms) {
713     my $syms = $ARGS{TARG_DIR} . $_;
714     open my $global, '<', $syms or die "failed to open $syms: $!\n";
715     while (<$global>) {
716         next unless /^([A-Za-z].*)/;
717         my $symbol = "$1";
718         ++$export{$symbol} unless exists $skip{$symbol};
719     }
720 }
721
722 # variables
723
724 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
725     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
726     # XXX AIX seems to want the perlvars.h symbols, for some reason
727     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
728         readvar('perlvars.h', \%export);
729     }
730 }
731 else {
732     unless ($define{'PERL_GLOBAL_STRUCT'}) {
733         readvar('perlvars.h', \%export);
734     }
735     unless ($define{MULTIPLICITY}) {
736         readvar('intrpvar.h', \%export);
737     }
738 }
739
740 # Oddities from PerlIO
741 # All have alternate implementations in perlio.c, so always exist.
742 # Should they be considered to be part of the API?
743 try_symbols(qw(
744                     PerlIO_binmode
745                     PerlIO_getpos
746                     PerlIO_init
747                     PerlIO_setpos
748                     PerlIO_tmpfile
749              ));
750
751 if ($ARGS{PLATFORM} eq 'win32') {
752     try_symbols(qw(
753                                  win32_free_childdir
754                                  win32_free_childenv
755                                  win32_get_childdir
756                                  win32_get_childenv
757                                  win32_spawnvp
758                  ));
759 }
760
761 if ($ARGS{PLATFORM} eq 'wince') {
762     ++$skip{'win32_isatty'}; # commit 4342f4d6df is win32-only
763 }
764
765 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
766     try_symbols(qw(
767                             Perl_init_os_extras
768                             Perl_thread_create
769                             Perl_win32_init
770                             Perl_win32_term
771                             RunPerl
772                             win32_async_check
773                             win32_errno
774                             win32_environ
775                             win32_abort
776                             win32_fstat
777                             win32_stat
778                             win32_pipe
779                             win32_popen
780                             win32_pclose
781                             win32_rename
782                             win32_setmode
783                             win32_chsize
784                             win32_lseek
785                             win32_tell
786                             win32_dup
787                             win32_dup2
788                             win32_open
789                             win32_close
790                             win32_eof
791                             win32_isatty
792                             win32_read
793                             win32_write
794                             win32_mkdir
795                             win32_rmdir
796                             win32_chdir
797                             win32_flock
798                             win32_execv
799                             win32_execvp
800                             win32_htons
801                             win32_ntohs
802                             win32_htonl
803                             win32_ntohl
804                             win32_inet_addr
805                             win32_inet_ntoa
806                             win32_socket
807                             win32_bind
808                             win32_listen
809                             win32_accept
810                             win32_connect
811                             win32_send
812                             win32_sendto
813                             win32_recv
814                             win32_recvfrom
815                             win32_shutdown
816                             win32_closesocket
817                             win32_ioctlsocket
818                             win32_setsockopt
819                             win32_getsockopt
820                             win32_getpeername
821                             win32_getsockname
822                             win32_gethostname
823                             win32_gethostbyname
824                             win32_gethostbyaddr
825                             win32_getprotobyname
826                             win32_getprotobynumber
827                             win32_getservbyname
828                             win32_getservbyport
829                             win32_select
830                             win32_endhostent
831                             win32_endnetent
832                             win32_endprotoent
833                             win32_endservent
834                             win32_getnetent
835                             win32_getnetbyname
836                             win32_getnetbyaddr
837                             win32_getprotoent
838                             win32_getservent
839                             win32_sethostent
840                             win32_setnetent
841                             win32_setprotoent
842                             win32_setservent
843                             win32_getenv
844                             win32_putenv
845                             win32_perror
846                             win32_malloc
847                             win32_calloc
848                             win32_realloc
849                             win32_free
850                             win32_sleep
851                             win32_times
852                             win32_access
853                             win32_alarm
854                             win32_chmod
855                             win32_open_osfhandle
856                             win32_get_osfhandle
857                             win32_ioctl
858                             win32_link
859                             win32_unlink
860                             win32_utime
861                             win32_gettimeofday
862                             win32_uname
863                             win32_wait
864                             win32_waitpid
865                             win32_kill
866                             win32_str_os_error
867                             win32_opendir
868                             win32_readdir
869                             win32_telldir
870                             win32_seekdir
871                             win32_rewinddir
872                             win32_closedir
873                             win32_longpath
874                             win32_ansipath
875                             win32_os_id
876                             win32_getpid
877                             win32_crypt
878                             win32_dynaload
879                             win32_clearenv
880                             win32_stdin
881                             win32_stdout
882                             win32_stderr
883                             win32_ferror
884                             win32_feof
885                             win32_strerror
886                             win32_fprintf
887                             win32_printf
888                             win32_vfprintf
889                             win32_vprintf
890                             win32_fread
891                             win32_fwrite
892                             win32_fopen
893                             win32_fdopen
894                             win32_freopen
895                             win32_fclose
896                             win32_fputs
897                             win32_fputc
898                             win32_ungetc
899                             win32_getc
900                             win32_fileno
901                             win32_clearerr
902                             win32_fflush
903                             win32_ftell
904                             win32_fseek
905                             win32_fgetpos
906                             win32_fsetpos
907                             win32_rewind
908                             win32_tmpfile
909                             win32_setbuf
910                             win32_setvbuf
911                             win32_flushall
912                             win32_fcloseall
913                             win32_fgets
914                             win32_gets
915                             win32_fgetc
916                             win32_putc
917                             win32_puts
918                             win32_getchar
919                             win32_putchar
920                  ));
921 }
922 elsif ($ARGS{PLATFORM} eq 'vms') {
923     try_symbols(qw(
924                       Perl_cando
925                       Perl_cando_by_name
926                       Perl_closedir
927                       Perl_csighandler_init
928                       Perl_do_rmdir
929                       Perl_fileify_dirspec
930                       Perl_fileify_dirspec_ts
931                       Perl_fileify_dirspec_utf8
932                       Perl_fileify_dirspec_utf8_ts
933                       Perl_flex_fstat
934                       Perl_flex_lstat
935                       Perl_flex_stat
936                       Perl_kill_file
937                       Perl_my_chdir
938                       Perl_my_chmod
939                       Perl_my_crypt
940                       Perl_my_endpwent
941                       Perl_my_fclose
942                       Perl_my_fdopen
943                       Perl_my_fgetname
944                       Perl_my_flush
945                       Perl_my_fwrite
946                       Perl_my_gconvert
947                       Perl_my_getenv
948                       Perl_my_getenv_len
949                       Perl_my_getpwnam
950                       Perl_my_getpwuid
951                       Perl_my_gmtime
952                       Perl_my_kill
953                       Perl_my_killpg
954                       Perl_my_localtime
955                       Perl_my_mkdir
956                       Perl_my_sigaction
957                       Perl_my_symlink
958                       Perl_my_time
959                       Perl_my_tmpfile
960                       Perl_my_trnlnm
961                       Perl_my_utime
962                       Perl_my_waitpid
963                       Perl_opendir
964                       Perl_pathify_dirspec
965                       Perl_pathify_dirspec_ts
966                       Perl_pathify_dirspec_utf8
967                       Perl_pathify_dirspec_utf8_ts
968                       Perl_readdir
969                       Perl_readdir_r
970                       Perl_rename
971                       Perl_rmscopy
972                       Perl_rmsexpand
973                       Perl_rmsexpand_ts
974                       Perl_rmsexpand_utf8
975                       Perl_rmsexpand_utf8_ts
976                       Perl_seekdir
977                       Perl_sig_to_vmscondition
978                       Perl_telldir
979                       Perl_tounixpath
980                       Perl_tounixpath_ts
981                       Perl_tounixpath_utf8
982                       Perl_tounixpath_utf8_ts
983                       Perl_tounixspec
984                       Perl_tounixspec_ts
985                       Perl_tounixspec_utf8
986                       Perl_tounixspec_utf8_ts
987                       Perl_tovmspath
988                       Perl_tovmspath_ts
989                       Perl_tovmspath_utf8
990                       Perl_tovmspath_utf8_ts
991                       Perl_tovmsspec
992                       Perl_tovmsspec_ts
993                       Perl_tovmsspec_utf8
994                       Perl_tovmsspec_utf8_ts
995                       Perl_trim_unixpath
996                       Perl_vms_case_tolerant
997                       Perl_vms_do_aexec
998                       Perl_vms_do_exec
999                       Perl_vms_image_init
1000                       Perl_vms_realpath
1001                       Perl_vmssetenv
1002                       Perl_vmssetuserlnm
1003                       Perl_vmstrnenv
1004                       PerlIO_openn
1005                  ));
1006 }
1007 elsif ($ARGS{PLATFORM} eq 'os2') {
1008     try_symbols(qw(
1009                       ctermid
1010                       get_sysinfo
1011                       Perl_OS2_init
1012                       Perl_OS2_init3
1013                       Perl_OS2_term
1014                       OS2_Perl_data
1015                       dlopen
1016                       dlsym
1017                       dlerror
1018                       dlclose
1019                       dup2
1020                       dup
1021                       my_tmpfile
1022                       my_tmpnam
1023                       my_flock
1024                       my_rmdir
1025                       my_mkdir
1026                       my_getpwuid
1027                       my_getpwnam
1028                       my_getpwent
1029                       my_setpwent
1030                       my_endpwent
1031                       fork_with_resources
1032                       croak_with_os2error
1033                       setgrent
1034                       endgrent
1035                       getgrent
1036                       malloc_mutex
1037                       threads_mutex
1038                       nthreads
1039                       nthreads_cond
1040                       os2_cond_wait
1041                       os2_stat
1042                       os2_execname
1043                       async_mssleep
1044                       msCounter
1045                       InfoTable
1046                       pthread_join
1047                       pthread_create
1048                       pthread_detach
1049                       XS_Cwd_change_drive
1050                       XS_Cwd_current_drive
1051                       XS_Cwd_extLibpath
1052                       XS_Cwd_extLibpath_set
1053                       XS_Cwd_sys_abspath
1054                       XS_Cwd_sys_chdir
1055                       XS_Cwd_sys_cwd
1056                       XS_Cwd_sys_is_absolute
1057                       XS_Cwd_sys_is_relative
1058                       XS_Cwd_sys_is_rooted
1059                       XS_DynaLoader_mod2fname
1060                       XS_File__Copy_syscopy
1061                       Perl_Register_MQ
1062                       Perl_Deregister_MQ
1063                       Perl_Serve_Messages
1064                       Perl_Process_Messages
1065                       init_PMWIN_entries
1066                       PMWIN_entries
1067                       Perl_hab_GET
1068                       loadByOrdinal
1069                       pExtFCN
1070                       os2error
1071                       ResetWinError
1072                       CroakWinError
1073                       PL_do_undump
1074                  ));
1075 }
1076 elsif ($ARGS{PLATFORM} eq 'netware') {
1077     try_symbols(qw(
1078                         Perl_init_os_extras
1079                         Perl_thread_create
1080                         Perl_nw5_init
1081                         RunPerl
1082                         AllocStdPerl
1083                         FreeStdPerl
1084                         do_spawn2
1085                         do_aspawn
1086                         nw_uname
1087                         nw_stdin
1088                         nw_stdout
1089                         nw_stderr
1090                         nw_feof
1091                         nw_ferror
1092                         nw_fopen
1093                         nw_fclose
1094                         nw_clearerr
1095                         nw_getc
1096                         nw_fgets
1097                         nw_fputc
1098                         nw_fputs
1099                         nw_fflush
1100                         nw_ungetc
1101                         nw_fileno
1102                         nw_fdopen
1103                         nw_freopen
1104                         nw_fread
1105                         nw_fwrite
1106                         nw_setbuf
1107                         nw_setvbuf
1108                         nw_vfprintf
1109                         nw_ftell
1110                         nw_fseek
1111                         nw_rewind
1112                         nw_tmpfile
1113                         nw_fgetpos
1114                         nw_fsetpos
1115                         nw_dup
1116                         nw_access
1117                         nw_chmod
1118                         nw_chsize
1119                         nw_close
1120                         nw_dup2
1121                         nw_flock
1122                         nw_isatty
1123                         nw_link
1124                         nw_lseek
1125                         nw_stat
1126                         nw_mktemp
1127                         nw_open
1128                         nw_read
1129                         nw_rename
1130                         nw_setmode
1131                         nw_unlink
1132                         nw_utime
1133                         nw_write
1134                         nw_chdir
1135                         nw_rmdir
1136                         nw_closedir
1137                         nw_opendir
1138                         nw_readdir
1139                         nw_rewinddir
1140                         nw_seekdir
1141                         nw_telldir
1142                         nw_htonl
1143                         nw_htons
1144                         nw_ntohl
1145                         nw_ntohs
1146                         nw_accept
1147                         nw_bind
1148                         nw_connect
1149                         nw_endhostent
1150                         nw_endnetent
1151                         nw_endprotoent
1152                         nw_endservent
1153                         nw_gethostbyaddr
1154                         nw_gethostbyname
1155                         nw_gethostent
1156                         nw_gethostname
1157                         nw_getnetbyaddr
1158                         nw_getnetbyname
1159                         nw_getnetent
1160                         nw_getpeername
1161                         nw_getprotobyname
1162                         nw_getprotobynumber
1163                         nw_getprotoent
1164                         nw_getservbyname
1165                         nw_getservbyport
1166                         nw_getservent
1167                         nw_getsockname
1168                         nw_getsockopt
1169                         nw_inet_addr
1170                         nw_listen
1171                         nw_socket
1172                         nw_recv
1173                         nw_recvfrom
1174                         nw_select
1175                         nw_send
1176                         nw_sendto
1177                         nw_sethostent
1178                         nw_setnetent
1179                         nw_setprotoent
1180                         nw_setservent
1181                         nw_setsockopt
1182                         nw_inet_ntoa
1183                         nw_shutdown
1184                         nw_crypt
1185                         nw_execvp
1186                         nw_kill
1187                         nw_Popen
1188                         nw_Pclose
1189                         nw_Pipe
1190                         nw_times
1191                         nw_waitpid
1192                         nw_getpid
1193                         nw_spawnvp
1194                         nw_os_id
1195                         nw_open_osfhandle
1196                         nw_get_osfhandle
1197                         nw_abort
1198                         nw_sleep
1199                         nw_wait
1200                         nw_dynaload
1201                         nw_strerror
1202                         fnFpSetMode
1203                         fnInsertHashListAddrs
1204                         fnGetHashListAddrs
1205                         Perl_deb
1206                         Perl_sv_setsv
1207                         Perl_sv_catsv
1208                         Perl_sv_catpvn
1209                         Perl_sv_2pv
1210                         nw_freeenviron
1211                         Remove_Thread_Ctx
1212                  ));
1213 }
1214
1215 # When added this code was only run for Win32 and WinCE
1216 # Currently only Win32 links static extensions into the shared library.
1217 # The WinCE makefile doesn't appear to support static extensions, so this code
1218 # can't have any effect there.
1219 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1220 # list of dynamic extensions, and the rules to build them)
1221 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1222 # static extensions with -fPIC, but links them to perl, not libperl.so
1223 # The VMS build scripts don't yet implement static extensions at all.
1224
1225 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1226     # records of type boot_module for statically linked modules (except Dynaloader)
1227     my $static_ext = $Config{static_ext} // "";
1228     $static_ext =~ s/\//__/g;
1229     $static_ext =~ s/\bDynaLoader\b//;
1230     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1231     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1232 }
1233
1234 if ($ARGS{PLATFORM} eq 'os2') {
1235     my (%mapped, @missing);
1236     open MAP, '<', 'miniperl.map' or die 'Cannot read miniperl.map';
1237     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1238     close MAP or die 'Cannot close miniperl.map';
1239
1240     @missing = grep { !exists $mapped{$_} }
1241                     keys %export;
1242     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1243     delete $export{$_} foreach @missing;
1244 }
1245
1246 ###############################################################################
1247
1248 # Now all symbols should be defined because next we are going to output them.
1249
1250 # Start with platform specific headers:
1251
1252 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1253     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1254         : "perl$Config{api_revision}$Config{api_version}";
1255     print "LIBRARY $dll\n";
1256     # The DESCRIPTION module definition file statement is not supported
1257     # by VC7 onwards.
1258     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1259         print "DESCRIPTION 'Perl interpreter'\n";
1260     }
1261     print "EXPORTS\n";
1262 }
1263 elsif ($ARGS{PLATFORM} eq 'os2') {
1264     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1265     $v .= '-thread' if $Config{archname} =~ /-thread/;
1266     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1267     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1268     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1269     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1270     print <<"---EOP---";
1271 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1272 $d
1273 STACKSIZE 32768
1274 CODE LOADONCALL
1275 DATA LOADONCALL NONSHARED MULTIPLE
1276 EXPORTS
1277 ---EOP---
1278 }
1279 elsif ($ARGS{PLATFORM} eq 'aix') {
1280     my $OSVER = `uname -v`;
1281     chop $OSVER;
1282     my $OSREL = `uname -r`;
1283     chop $OSREL;
1284     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1285         print "#! ..\n";
1286     } else {
1287         print "#!\n";
1288     }
1289 }
1290 elsif ($ARGS{PLATFORM} eq 'netware') {
1291         if ($ARGS{FILETYPE} eq 'def') {
1292         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1293         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1294         print "EXPORTS\n";
1295         }
1296 }
1297
1298 # Then the symbols
1299
1300 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1301 foreach my $symbol (@symbols) {
1302     if (PLATFORM eq 'win32' || PLATFORM eq 'wince') {
1303         # Remembering the origin file of each symbol is an alternative to PL_ matching
1304         if (substr($symbol, 0, 3) eq 'PL_') {
1305             print "\t$symbol DATA\n";
1306         }
1307         else {
1308             print "\t$symbol\n";
1309         }
1310     }
1311     elsif (PLATFORM eq 'os2') {
1312         printf qq(    %-31s \@%s\n),
1313           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1314         printf qq(    %-31s \@%s\n),
1315           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1316           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1317           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1318     }
1319     elsif (PLATFORM eq 'netware') {
1320         print "\t$symbol,\n";
1321     } else {
1322         print "$symbol\n";
1323     }
1324 }
1325
1326 # Then platform specific footers.
1327
1328 if ($ARGS{PLATFORM} eq 'os2') {
1329     print <<EOP;
1330     dll_perlmain=main
1331     fill_extLibpath
1332     dir_subst
1333     Perl_OS2_handler_install
1334
1335 ; LAST_ORDINAL=$sym_ord
1336 EOP
1337 }
1338
1339 1;