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regen/embed.pl: Verify flags field of embed.fnc
[perl5.git] / regen / embed.pl
CommitLineData
5f05dabc 1#!/usr/bin/perl -w
6294c161
DM
2#
3# Regenerate (overwriting only if changed):
4#
5# embed.h
6# embedvar.h
6294c161
DM
7# perlapi.c
8# perlapi.h
9# proto.h
10#
11# from information stored in
12#
13# embed.fnc
14# intrpvar.h
15# perlvars.h
897d3989 16# regen/opcodes
6294c161 17#
6294c161
DM
18# Accepts the standard regen_lib -q and -v args.
19#
20# This script is normally invoked from regen.pl.
e50aee73 21
916e4025 22require 5.004; # keep this compatible, an old perl is all we may have before
954c1994 23 # we build the new one
5f05dabc 24
88e01c9d
AL
25use strict;
26
36bb303b
NC
27BEGIN {
28 # Get function prototypes
af001346 29 require 'regen/regen_lib.pl';
cdde42af 30 require 'regen/embed_lib.pl';
36bb303b
NC
31}
32
88e01c9d 33my $SPLINT = 0; # Turn true for experimental splint support http://www.splint.org
916e4025 34my $unflagged_pointers;
88e01c9d 35
cea2e8a9 36#
346f75ff 37# See database of global and static function prototypes in embed.fnc
cea2e8a9
GS
38# This is used to generate prototype headers under various configurations,
39# export symbols lists for different platforms, and macros to provide an
40# implicit interpreter context argument.
41#
42
03b6588a
KW
43sub full_name ($$) { # Returns the function name with potentially the
44 # prefixes 'S_' or 'Perl_'
45 my ($func, $flags) = @_;
46
47 return "S_$func" if $flags =~ /[si]/;
48 return "Perl_$func" if $flags =~ /[bp]/;
49 return $func;
50}
51
5f8dc073 52sub open_print_header {
56fd1190 53 my ($file, $quote) = @_;
4373e329 54
5f8dc073
NC
55 return open_new($file, '>',
56 { file => $file, style => '*', by => 'regen/embed.pl',
57 from => ['data in embed.fnc', 'regen/embed.pl',
58 'regen/opcodes', 'intrpvar.h', 'perlvars.h'],
59 final => "\nEdit those files and run 'make regen_headers' to effect changes.\n",
60 copyright => [1993 .. 2009], quote => $quote });
61}
7f1be197 62
5ccbf88e
NC
63my ($embed, $core, $ext, $api) = setup_embed();
64
cea2e8a9 65# generate proto.h
9516dc40 66{
5f8dc073
NC
67 my $pr = open_print_header("proto.h");
68 print $pr "START_EXTERN_C\n";
f8394530 69 my $ret;
9516dc40 70
5ccbf88e 71 foreach (@$embed) {
9516dc40
NC
72 if (@$_ == 1) {
73 print $pr "$_->[0]\n";
74 next;
75 }
76
77 my ($flags,$retval,$plain_func,@args) = @$_;
556343f1
KW
78 if ($flags =~ / ( [^AabDdEfiMmnOoPpRrsUXx] ) /x) {
79 warn "flag $1 is not legal (for function $plain_func)";
80 }
4373e329
AL
81 my @nonnull;
82 my $has_context = ( $flags !~ /n/ );
88e01c9d
AL
83 my $never_returns = ( $flags =~ /r/ );
84 my $commented_out = ( $flags =~ /m/ );
aa4ca557 85 my $binarycompat = ( $flags =~ /b/ );
88e01c9d
AL
86 my $is_malloc = ( $flags =~ /a/ );
87 my $can_ignore = ( $flags !~ /R/ ) && !$is_malloc;
7918f24d
NC
88 my @names_of_nn;
89 my $func;
88e01c9d 90
9f68b0f7
KW
91 if (! $can_ignore && $retval eq 'void') {
92 warn "It is nonsensical to require the return value of a void function ($plain_func) to be checked";
93 }
82728c33
KW
94
95 my $scope_type_flag_count = 0;
96 $scope_type_flag_count++ if $flags =~ /s/;
97 $scope_type_flag_count++ if $flags =~ /i/;
98 $scope_type_flag_count++ if $flags =~ /p/;
99 warn "$plain_func: i, p, and s flags are all mutually exclusive"
100 if $scope_type_flag_count > 1;
88e01c9d
AL
101 my $splint_flags = "";
102 if ( $SPLINT && !$commented_out ) {
103 $splint_flags .= '/*@noreturn@*/ ' if $never_returns;
104 if ($can_ignore && ($retval ne 'void') && ($retval !~ /\*/)) {
105 $retval .= " /*\@alt void\@*/";
106 }
107 }
108
71556506 109 if ($flags =~ /([si])/) {
98c015b7
DD
110 my $type;
111 if ($never_returns) {
112 $type = $1 eq 's' ? "PERL_STATIC_NO_RET" : "PERL_STATIC_INLINE_NO_RET";
113 }
114 else {
115 $type = $1 eq 's' ? "STATIC" : "PERL_STATIC_INLINE";
116 }
71556506 117 $retval = "$type $splint_flags$retval";
cea2e8a9 118 }
0cb96387 119 else {
718fae11
JD
120 if ($never_returns) {
121 $retval = "PERL_CALLCONV_NO_RET $splint_flags$retval";
122 }
123 else {
124 $retval = "PERL_CALLCONV $splint_flags$retval";
125 }
cea2e8a9 126 }
03b6588a 127 $func = full_name($plain_func, $flags);
f8394530 128 $ret = "$retval\t$func(";
4373e329
AL
129 if ( $has_context ) {
130 $ret .= @args ? "pTHX_ " : "pTHX";
cea2e8a9
GS
131 }
132 if (@args) {
4373e329
AL
133 my $n;
134 for my $arg ( @args ) {
135 ++$n;
7827dc65
AL
136 if ( $arg =~ /\*/ && $arg !~ /\b(NN|NULLOK)\b/ ) {
137 warn "$func: $arg needs NN or NULLOK\n";
7827dc65
AL
138 ++$unflagged_pointers;
139 }
88e01c9d
AL
140 my $nn = ( $arg =~ s/\s*\bNN\b\s+// );
141 push( @nonnull, $n ) if $nn;
142
143 my $nullok = ( $arg =~ s/\s*\bNULLOK\b\s+// ); # strip NULLOK with no effect
c48640ec
AL
144
145 # Make sure each arg has at least a type and a var name.
146 # An arg of "int" is valid C, but want it to be "int foo".
147 my $temp_arg = $arg;
148 $temp_arg =~ s/\*//g;
149 $temp_arg =~ s/\s*\bstruct\b\s*/ /g;
7918f24d
NC
150 if ( ($temp_arg ne "...")
151 && ($temp_arg !~ /\w+\s+(\w+)(?:\[\d+\])?\s*$/) ) {
152 warn "$func: $arg ($n) doesn't have a name\n";
c48640ec 153 }
88e01c9d
AL
154 if ( $SPLINT && $nullok && !$commented_out ) {
155 $arg = '/*@null@*/ ' . $arg;
156 }
aa4ca557 157 if (defined $1 && $nn && !($commented_out && !$binarycompat)) {
7918f24d
NC
158 push @names_of_nn, $1;
159 }
4373e329 160 }
cea2e8a9
GS
161 $ret .= join ", ", @args;
162 }
163 else {
4373e329 164 $ret .= "void" if !$has_context;
cea2e8a9
GS
165 }
166 $ret .= ")";
f54cb97a
AL
167 my @attrs;
168 if ( $flags =~ /r/ ) {
abb2c242 169 push @attrs, "__attribute__noreturn__";
f54cb97a 170 }
a5c26493
RGS
171 if ( $flags =~ /D/ ) {
172 push @attrs, "__attribute__deprecated__";
173 }
88e01c9d 174 if ( $is_malloc ) {
abb2c242 175 push @attrs, "__attribute__malloc__";
f54cb97a 176 }
88e01c9d 177 if ( !$can_ignore ) {
abb2c242 178 push @attrs, "__attribute__warn_unused_result__";
f54cb97a
AL
179 }
180 if ( $flags =~ /P/ ) {
abb2c242 181 push @attrs, "__attribute__pure__";
f54cb97a 182 }
1c846c1f 183 if( $flags =~ /f/ ) {
cdfeb707 184 my $prefix = $has_context ? 'pTHX_' : '';
5d37acd6
DM
185 my ($args, $pat);
186 if ($args[-1] eq '...') {
187 $args = scalar @args;
188 $pat = $args - 1;
189 $args = $prefix . $args;
190 }
191 else {
192 # don't check args, and guess which arg is the pattern
193 # (one of 'fmt', 'pat', 'f'),
194 $args = 0;
195 my @fmts = grep $args[$_] =~ /\b(f|pat|fmt)$/, 0..$#args;
196 if (@fmts != 1) {
197 die "embed.pl: '$plain_func': can't determine pattern arg\n";
198 }
199 $pat = $fmts[0] + 1;
200 }
201 my $macro = grep($_ == $pat, @nonnull)
cdfeb707
RB
202 ? '__attribute__format__'
203 : '__attribute__format__null_ok__';
531b2663
DM
204 if ($plain_func =~ /strftime/) {
205 push @attrs, sprintf "%s(__strftime__,%s1,0)", $macro, $prefix;
206 }
207 else {
5d37acd6
DM
208 push @attrs, sprintf "%s(__printf__,%s%d,%s)", $macro,
209 $prefix, $pat, $args;
531b2663 210 }
894356b3 211 }
f54cb97a
AL
212 if ( @attrs ) {
213 $ret .= "\n";
214 $ret .= join( "\n", map { "\t\t\t$_" } @attrs );
4373e329 215 }
af3c7592 216 $ret .= ";";
88e01c9d 217 $ret = "/* $ret */" if $commented_out;
7918f24d
NC
218 if (@names_of_nn) {
219 $ret .= "\n#define PERL_ARGS_ASSERT_\U$plain_func\E\t\\\n\t"
220 . join '; ', map "assert($_)", @names_of_nn;
221 }
f54cb97a 222 $ret .= @attrs ? "\n\n" : "\n";
9516dc40
NC
223
224 print $pr $ret;
cea2e8a9 225 }
9516dc40 226
897d3989
NC
227 print $pr <<'EOF';
228#ifdef PERL_CORE
229# include "pp_proto.h"
230#endif
231END_EXTERN_C
897d3989 232EOF
9516dc40 233
ce716c52 234 read_only_bottom_close_and_rename($pr);
cea2e8a9
GS
235}
236
7827dc65 237warn "$unflagged_pointers pointer arguments to clean up\n" if $unflagged_pointers;
cea2e8a9 238
adf34b4b
NC
239sub readvars {
240 my ($file, $pre) = @_;
d4cce5f1 241 local (*FILE, $_);
adf34b4b 242 my %seen;
d4cce5f1
NIS
243 open(FILE, "< $file")
244 or die "embed.pl: Can't open $file: $!\n";
245 while (<FILE>) {
246 s/[ \t]*#.*//; # Delete comments.
115ff745 247 if (/PERLVARA?I?C?\($pre,\s*(\w+)/) {
adf34b4b
NC
248 warn "duplicate symbol $1 while processing $file line $.\n"
249 if $seen{$1}++;
d4cce5f1
NIS
250 }
251 }
252 close(FILE);
adf34b4b 253 return sort keys %seen;
d4cce5f1
NIS
254}
255
adf34b4b
NC
256my @intrp = readvars 'intrpvar.h','I';
257my @globvar = readvars 'perlvars.h','G';
d4cce5f1 258
125218eb
NC
259sub hide {
260 my ($from, $to, $indent) = @_;
261 $indent = '' unless defined $indent;
262 my $t = int(length("$indent$from") / 8);
263 "#${indent}define $from" . "\t" x ($t < 3 ? 3 - $t : 1) . "$to\n";
5f05dabc 264}
c6af7a1a 265
d4cce5f1
NIS
266sub multon ($$$) {
267 my ($sym,$pre,$ptr) = @_;
3280af22 268 hide("PL_$sym", "($ptr$pre$sym)");
5f05dabc 269}
54aff467 270
5f8dc073 271my $em = open_print_header('embed.h');
e50aee73 272
5f8dc073 273print $em <<'END';
e50aee73
AD
274/* (Doing namespace management portably in C is really gross.) */
275
d51482e4
JH
276/* By defining PERL_NO_SHORT_NAMES (not done by default) the short forms
277 * (like warn instead of Perl_warn) for the API are not defined.
278 * Not defining the short forms is a good thing for cleaner embedding. */
279
280#ifndef PERL_NO_SHORT_NAMES
820c3be9 281
22c35a8c 282/* Hide global symbols */
5f05dabc 283
e50aee73
AD
284END
285
cea2e8a9
GS
286my @az = ('a'..'z');
287
e8a67806
NC
288sub embed_h {
289 my ($guard, $funcs) = @_;
290 print $em "$guard\n" if $guard;
291
2a4d8072 292 my $lines;
e8a67806
NC
293 foreach (@$funcs) {
294 if (@$_ == 1) {
295 my $cond = $_->[0];
296 # Indent the conditionals if we are wrapped in an #if/#endif pair.
297 $cond =~ s/#(.*)/# $1/ if $guard;
2a4d8072 298 $lines .= "$cond\n";
e8a67806
NC
299 next;
300 }
301 my $ret = "";
302 my ($flags,$retval,$func,@args) = @$_;
af3c7592 303 unless ($flags =~ /[om]/) {
cea2e8a9 304 my $args = scalar @args;
7a5a24f7 305 if ($flags =~ /n/) {
03b6588a 306 $ret = hide($func, full_name($func, $flags));
cea2e8a9 307 }
7a5a24f7 308 elsif ($args and $args[$args-1] =~ /\.\.\./) {
e64ca59f
NC
309 if ($flags =~ /p/) {
310 # we're out of luck for varargs functions under CPP
311 # So we can only do these macros for no implicit context:
312 $ret = "#ifndef PERL_IMPLICIT_CONTEXT\n"
03b6588a 313 . hide($func, full_name($func, $flags)) . "#endif\n";
e64ca59f 314 }
7a5a24f7 315 }
cea2e8a9
GS
316 else {
317 my $alist = join(",", @az[0..$args-1]);
318 $ret = "#define $func($alist)";
319 my $t = int(length($ret) / 8);
320 $ret .= "\t" x ($t < 4 ? 4 - $t : 1);
03b6588a 321 $ret .= full_name($func, $flags) . "(aTHX";
cea2e8a9
GS
322 $ret .= "_ " if $alist;
323 $ret .= $alist . ")\n";
324 }
325 }
2a4d8072 326 $lines .= $ret;
cea2e8a9 327 }
2a4d8072
NC
328 # Prune empty #if/#endif pairs.
329 while ($lines =~ s/#\s*if[^\n]+\n#\s*endif\n//) {
330 }
b2e549c0
NC
331 # Merge adjacent blocks.
332 while ($lines =~ s/(#ifndef PERL_IMPLICIT_CONTEXT
333[^\n]+
334)#endif
335#ifndef PERL_IMPLICIT_CONTEXT
336/$1/) {
337 }
338
2a4d8072 339 print $em $lines;
e8a67806 340 print $em "#endif\n" if $guard;
da4ddda1
NC
341}
342
5ccbf88e
NC
343embed_h('', $api);
344embed_h('#if defined(PERL_CORE) || defined(PERL_EXT)', $ext);
345embed_h('#ifdef PERL_CORE', $core);
e8a67806 346
424a4936 347print $em <<'END';
e50aee73 348
d51482e4 349#endif /* #ifndef PERL_NO_SHORT_NAMES */
35209cc8 350
cea2e8a9
GS
351/* Compatibility stubs. Compile extensions with -DPERL_NOCOMPAT to
352 disable them.
353 */
354
538feb02 355#if !defined(PERL_CORE)
5bc28da9 356# define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,PTR2IV(ptr))
a0714e2c 357# define sv_setptrref(rv,ptr) sv_setref_iv(rv,NULL,PTR2IV(ptr))
538feb02 358#endif
cea2e8a9 359
08e5223a 360#if !defined(PERL_CORE) && !defined(PERL_NOCOMPAT)
cea2e8a9
GS
361
362/* Compatibility for various misnamed functions. All functions
363 in the API that begin with "perl_" (not "Perl_") take an explicit
364 interpreter context pointer.
365 The following are not like that, but since they had a "perl_"
366 prefix in previous versions, we provide compatibility macros.
367 */
65cec589 368# define perl_atexit(a,b) call_atexit(a,b)
7b53c8ee
NC
369END
370
3a54c8e7
NC
371foreach (@$embed) {
372 my ($flags, $retval, $func, @args) = @$_;
373 next unless $func;
374 next unless $flags =~ /O/;
7b53c8ee
NC
375
376 my $alist = join ",", @az[0..$#args];
377 my $ret = "# define perl_$func($alist)";
378 my $t = (length $ret) >> 3;
379 $ret .= "\t" x ($t < 5 ? 5 - $t : 1);
3a54c8e7
NC
380 print $em "$ret$func($alist)\n";
381}
7b53c8ee 382
eacd26c2
NC
383my @nocontext;
384{
385 my (%has_va, %has_nocontext);
5ccbf88e 386 foreach (@$embed) {
eacd26c2
NC
387 next unless @$_ > 1;
388 ++$has_va{$_->[2]} if $_->[-1] =~ /\.\.\./;
389 ++$has_nocontext{$1} if $_->[2] =~ /(.*)_nocontext/;
390 }
391
392 @nocontext = sort grep {
393 $has_nocontext{$_}
394 && !/printf/ # Not clear to me why these are skipped but they are.
395 } keys %has_va;
396}
397
7b53c8ee 398print $em <<'END';
cea2e8a9
GS
399
400/* varargs functions can't be handled with CPP macros. :-(
401 This provides a set of compatibility functions that don't take
402 an extra argument but grab the context pointer using the macro
403 dTHX.
404 */
d51482e4 405#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_SHORT_NAMES)
125218eb
NC
406END
407
eacd26c2 408foreach (@nocontext) {
125218eb
NC
409 print $em hide($_, "Perl_${_}_nocontext", " ");
410}
411
412print $em <<'END';
cea2e8a9
GS
413#endif
414
415#endif /* !defined(PERL_CORE) && !defined(PERL_NOCOMPAT) */
416
417#if !defined(PERL_IMPLICIT_CONTEXT)
418/* undefined symbols, point them back at the usual ones */
125218eb
NC
419END
420
eacd26c2 421foreach (@nocontext) {
125218eb
NC
422 print $em hide("Perl_${_}_nocontext", "Perl_$_", " ");
423}
424
425print $em <<'END';
cea2e8a9 426#endif
d4cce5f1
NIS
427END
428
ce716c52 429read_only_bottom_close_and_rename($em);
d4cce5f1 430
5f8dc073 431$em = open_print_header('embedvar.h');
d4cce5f1 432
5f8dc073 433print $em <<'END';
d4cce5f1
NIS
434/* (Doing namespace management portably in C is really gross.) */
435
54aff467 436/*
3db8f154
MB
437 The following combinations of MULTIPLICITY and PERL_IMPLICIT_CONTEXT
438 are supported:
54aff467
GS
439 1) none
440 2) MULTIPLICITY # supported for compatibility
441 3) MULTIPLICITY && PERL_IMPLICIT_CONTEXT
54aff467
GS
442
443 All other combinations of these flags are errors.
444
3db8f154 445 only #3 is supported directly, while #2 is a special
54aff467
GS
446 case of #3 (supported by redefining vTHX appropriately).
447*/
cea2e8a9 448
54aff467 449#if defined(MULTIPLICITY)
3db8f154 450/* cases 2 and 3 above */
cea2e8a9 451
54aff467
GS
452# if defined(PERL_IMPLICIT_CONTEXT)
453# define vTHX aTHX
454# else
455# define vTHX PERL_GET_INTERP
456# endif
cea2e8a9 457
e50aee73
AD
458END
459
adf34b4b
NC
460my $sym;
461
462for $sym (@intrp) {
1a904fc8
FC
463 if ($sym eq 'sawampersand') {
464 print $em "#ifndef PL_sawampersand\n";
465 }
424a4936 466 print $em multon($sym,'I','vTHX->');
1a904fc8
FC
467 if ($sym eq 'sawampersand') {
468 print $em "#endif\n";
469 }
d4cce5f1
NIS
470}
471
424a4936 472print $em <<'END';
d4cce5f1 473
54aff467 474#endif /* MULTIPLICITY */
d4cce5f1 475
54aff467 476#if defined(PERL_GLOBAL_STRUCT)
22239a37
NIS
477
478END
479
adf34b4b 480for $sym (@globvar) {
0447859b 481 print $em "#ifdef OS2\n" if $sym eq 'sh_path';
424a4936
NC
482 print $em multon($sym, 'G','my_vars->');
483 print $em multon("G$sym",'', 'my_vars->');
0447859b 484 print $em "#endif\n" if $sym eq 'sh_path';
22239a37
NIS
485}
486
424a4936 487print $em <<'END';
22239a37 488
22239a37 489#endif /* PERL_GLOBAL_STRUCT */
84fee439
NIS
490END
491
ce716c52 492read_only_bottom_close_and_rename($em);
c6af7a1a 493
5f8dc073 494my $capih = open_print_header('perlapi.h');
51371543 495
5f8dc073 496print $capih <<'EOT';
51371543 497/* declare accessor functions for Perl variables */
6f4183fe
GS
498#ifndef __perlapi_h__
499#define __perlapi_h__
51371543 500
87b9e160 501#if defined (MULTIPLICITY) && defined (PERL_GLOBAL_STRUCT)
c5be433b 502
51371543
GS
503START_EXTERN_C
504
505#undef PERLVAR
506#undef PERLVARA
507#undef PERLVARI
508#undef PERLVARIC
115ff745
NC
509#define PERLVAR(p,v,t) EXTERN_C t* Perl_##p##v##_ptr(pTHX);
510#define PERLVARA(p,v,n,t) typedef t PL_##v##_t[n]; \
511 EXTERN_C PL_##v##_t* Perl_##p##v##_ptr(pTHX);
512#define PERLVARI(p,v,t,i) PERLVAR(p,v,t)
513#define PERLVARIC(p,v,t,i) PERLVAR(p,v, const t)
51371543 514
51371543
GS
515#include "perlvars.h"
516
517#undef PERLVAR
518#undef PERLVARA
519#undef PERLVARI
520#undef PERLVARIC
27da23d5 521
51371543
GS
522END_EXTERN_C
523
682fc664 524#if defined(PERL_CORE)
6f4183fe 525
87b9e160 526/* accessor functions for Perl "global" variables */
682fc664
GS
527
528/* these need to be mentioned here, or most linkers won't put them in
529 the perl executable */
530
531#ifndef PERL_NO_FORCE_LINK
532
533START_EXTERN_C
534
535#ifndef DOINIT
27da23d5 536EXTCONST void * const PL_force_link_funcs[];
682fc664 537#else
27da23d5 538EXTCONST void * const PL_force_link_funcs[] = {
682fc664
GS
539#undef PERLVAR
540#undef PERLVARA
541#undef PERLVARI
542#undef PERLVARIC
115ff745
NC
543#define PERLVAR(p,v,t) (void*)Perl_##p##v##_ptr,
544#define PERLVARA(p,v,n,t) PERLVAR(p,v,t)
545#define PERLVARI(p,v,t,i) PERLVAR(p,v,t)
546#define PERLVARIC(p,v,t,i) PERLVAR(p,v,t)
682fc664 547
3c0f78ca
JH
548/* In Tru64 (__DEC && __osf__) the cc option -std1 causes that one
549 * cannot cast between void pointers and function pointers without
550 * info level warnings. The PL_force_link_funcs[] would cause a few
551 * hundred of those warnings. In code one can circumnavigate this by using
552 * unions that overlay the different pointers, but in declarations one
553 * cannot use this trick. Therefore we just disable the warning here
554 * for the duration of the PL_force_link_funcs[] declaration. */
555
556#if defined(__DECC) && defined(__osf__)
557#pragma message save
558#pragma message disable (nonstandcast)
559#endif
560
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561#include "perlvars.h"
562
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JH
563#if defined(__DECC) && defined(__osf__)
564#pragma message restore
565#endif
566
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567#undef PERLVAR
568#undef PERLVARA
569#undef PERLVARI
570#undef PERLVARIC
571};
572#endif /* DOINIT */
573
acfe0abc 574END_EXTERN_C
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575
576#endif /* PERL_NO_FORCE_LINK */
577
578#else /* !PERL_CORE */
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579
580EOT
581
adf34b4b 582foreach $sym (@globvar) {
5f9c6535
NC
583 print $capih
584 "#undef PL_$sym\n" . hide("PL_$sym", "(*Perl_G${sym}_ptr(NULL))");
6f4183fe
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585}
586
424a4936 587print $capih <<'EOT';
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588
589#endif /* !PERL_CORE */
87b9e160 590#endif /* MULTIPLICITY && PERL_GLOBAL_STRUCT */
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591
592#endif /* __perlapi_h__ */
6f4183fe 593EOT
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NC
594
595read_only_bottom_close_and_rename($capih);
51371543 596
5f8dc073 597my $capi = open_print_header('perlapi.c', <<'EOQ');
56fd1190 598 *
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599 *
600 * Up to the threshold of the door there mounted a flight of twenty-seven
601 * broad stairs, hewn by some unknown art of the same black stone. This
602 * was the only entrance to the tower; ...
603 *
604 * [p.577 of _The Lord of the Rings_, III/x: "The Voice of Saruman"]
605 *
606 */
56fd1190 607EOQ
892eaa71 608
5f8dc073 609print $capi <<'EOT';
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610#include "EXTERN.h"
611#include "perl.h"
612#include "perlapi.h"
613
87b9e160 614#if defined (MULTIPLICITY) && defined (PERL_GLOBAL_STRUCT)
51371543 615
87b9e160 616/* accessor functions for Perl "global" variables */
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617START_EXTERN_C
618
51371543 619#undef PERLVARI
115ff745 620#define PERLVARI(p,v,t,i) PERLVAR(p,v,t)
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GS
621
622#undef PERLVAR
623#undef PERLVARA
115ff745 624#define PERLVAR(p,v,t) t* Perl_##p##v##_ptr(pTHX) \
96a5add6 625 { dVAR; PERL_UNUSED_CONTEXT; return &(PL_##v); }
115ff745 626#define PERLVARA(p,v,n,t) PL_##v##_t* Perl_##p##v##_ptr(pTHX) \
96a5add6 627 { dVAR; PERL_UNUSED_CONTEXT; return &(PL_##v); }
34f7a5fe 628#undef PERLVARIC
115ff745
NC
629#define PERLVARIC(p,v,t,i) \
630 const t* Perl_##p##v##_ptr(pTHX) \
96a5add6 631 { PERL_UNUSED_CONTEXT; return (const t *)&(PL_##v); }
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632#include "perlvars.h"
633
634#undef PERLVAR
635#undef PERLVARA
636#undef PERLVARI
637#undef PERLVARIC
27da23d5 638
acfe0abc 639END_EXTERN_C
6f4183fe 640
87b9e160 641#endif /* MULTIPLICITY && PERL_GLOBAL_STRUCT */
51371543
GS
642EOT
643
ce716c52 644read_only_bottom_close_and_rename($capi);
acfe0abc 645
1b6737cc 646# ex: set ts=8 sts=4 sw=4 noet: