[perl5.git] / regen / embed.pl

#!/usr/bin/perl -w
# 
# Regenerate (overwriting only if changed):
#
#    embed.h
#    embedvar.h
#    perlapi.c
#    perlapi.h
#    proto.h
#
# from information stored in
#
#    embed.fnc
#    intrpvar.h
#    perlvars.h
#    regen/opcodes
#
# Accepts the standard regen_lib -q and -v args.
#
# This script is normally invoked from regen.pl.

require 5.004;	# keep this compatible, an old perl is all we may have before
                # we build the new one

use strict;

BEGIN {
    # Get function prototypes
    require './regen/regen_lib.pl';
    require './regen/embed_lib.pl';
}

my $unflagged_pointers;

#
# See database of global and static function prototypes in embed.fnc
# This is used to generate prototype headers under various configurations,
# export symbols lists for different platforms, and macros to provide an
# implicit interpreter context argument.
#

sub full_name ($$) { # Returns the function name with potentially the
		     # prefixes 'S_' or 'Perl_'
    my ($func, $flags) = @_;

    return "Perl_$func" if $flags =~ /p/;
    return "S_$func" if $flags =~ /[si]/;
    return $func;
}

sub open_print_header {
    my ($file, $quote) = @_;

    return open_new($file, '>',
		    { file => $file, style => '*', by => 'regen/embed.pl',
		      from => ['data in embed.fnc', 'regen/embed.pl',
			       'regen/opcodes', 'intrpvar.h', 'perlvars.h'],
		      final => "\nEdit those files and run 'make regen_headers' to effect changes.\n",
		      copyright => [1993 .. 2009], quote => $quote });
}

my ($embed, $core, $ext, $api) = setup_embed();

# generate proto.h
{
    my $pr = open_print_header("proto.h");
    print $pr "START_EXTERN_C\n";
    my $ret;

    foreach (@$embed) {
	if (@$_ == 1) {
	    print $pr "$_->[0]\n";
	    next;
	}

	my ($flags,$retval,$plain_func,@args) = @$_;
        if ($flags =~ / ( [^AabDdEfiMmnOoPpRrsUWXx] ) /x) {
	    warn "flag $1 is not legal (for function $plain_func)";
	}
	my @nonnull;
        my $has_depth = ( $flags =~ /W/ );
	my $has_context = ( $flags !~ /n/ );
	my $never_returns = ( $flags =~ /r/ );
	my $binarycompat = ( $flags =~ /b/ );
	my $commented_out = ( ! $binarycompat && $flags =~ /m/ );
	my $is_malloc = ( $flags =~ /a/ );
	my $can_ignore = ( $flags !~ /R/ ) && ( $flags !~ /P/ ) && !$is_malloc;
	my @names_of_nn;
	my $func;

	if (! $can_ignore && $retval eq 'void') {
	    warn "It is nonsensical to require the return value of a void function ($plain_func) to be checked";
	}

	warn "$plain_func: s flag is mutually exclusive from the i and p plags"
					    if $flags =~ /s/ && $flags =~ /[ip]/;

	if ($flags =~ /([si])/) {
	    my $type;
	    if ($never_returns) {
		$type = $1 eq 's' ? "PERL_STATIC_NO_RET" : "PERL_STATIC_INLINE_NO_RET";
	    }
	    else {
		$type = $1 eq 's' ? "STATIC" : "PERL_STATIC_INLINE";
	    }
	    $retval = "$type $retval";
	}
	else {
	    if ($never_returns) {
		$retval = "PERL_CALLCONV_NO_RET $retval";
	    }
	    else {
		$retval = "PERL_CALLCONV $retval";
	    }
	}
	$func = full_name($plain_func, $flags);
	$ret = "";
	$ret .= "#ifndef NO_MATHOMS\n" if $binarycompat;
	$ret .= "$retval\t$func(";
	if ( $has_context ) {
	    $ret .= @args ? "pTHX_ " : "pTHX";
	}
	if (@args) {
	    my $n;
	    for my $arg ( @args ) {
		++$n;
		if ( $arg =~ /\*/ && $arg !~ /\b(NN|NULLOK)\b/ ) {
		    warn "$func: $arg needs NN or NULLOK\n";
		    ++$unflagged_pointers;
		}
		my $nn = ( $arg =~ s/\s*\bNN\b\s+// );
		push( @nonnull, $n ) if $nn;

		my $nullok = ( $arg =~ s/\s*\bNULLOK\b\s+// ); # strip NULLOK with no effect

		# Make sure each arg has at least a type and a var name.
		# An arg of "int" is valid C, but want it to be "int foo".
		my $temp_arg = $arg;
		$temp_arg =~ s/\*//g;
		$temp_arg =~ s/\s*\bstruct\b\s*/ /g;
		if ( ($temp_arg ne "...")
		     && ($temp_arg !~ /\w+\s+(\w+)(?:\[\d+\])?\s*$/) ) {
		    warn "$func: $arg ($n) doesn't have a name\n";
		}
		if (defined $1 && $nn && !($commented_out && !$binarycompat)) {
		    push @names_of_nn, $1;
		}
	    }
	    $ret .= join ", ", @args;
	}
	else {
	    $ret .= "void" if !$has_context;
	}
        $ret .= " _pDEPTH" if $has_depth;
	$ret .= ")";
	my @attrs;
	if ( $flags =~ /r/ ) {
	    push @attrs, "__attribute__noreturn__";
	}
	if ( $flags =~ /D/ ) {
	    push @attrs, "__attribute__deprecated__";
	}
	if ( $is_malloc ) {
	    push @attrs, "__attribute__malloc__";
	}
	if ( !$can_ignore ) {
	    push @attrs, "__attribute__warn_unused_result__";
	}
	if ( $flags =~ /P/ ) {
	    push @attrs, "__attribute__pure__";
	}
	if( $flags =~ /f/ ) {
	    my $prefix	= $has_context ? 'pTHX_' : '';
	    my ($args, $pat);
	    if ($args[-1] eq '...') {
		$args	= scalar @args;
		$pat	= $args - 1;
		$args	= $prefix . $args;
	    }
	    else {
		# don't check args, and guess which arg is the pattern
		# (one of 'fmt', 'pat', 'f'),
		$args = 0;
		my @fmts = grep $args[$_] =~ /\b(f|pat|fmt)$/, 0..$#args;
		if (@fmts != 1) {
		    die "embed.pl: '$plain_func': can't determine pattern arg\n";
		}
		$pat = $fmts[0] + 1;
	    }
	    my $macro	= grep($_ == $pat, @nonnull)
				? '__attribute__format__'
				: '__attribute__format__null_ok__';
	    if ($plain_func =~ /strftime/) {
		push @attrs, sprintf "%s(__strftime__,%s1,0)", $macro, $prefix;
	    }
	    else {
		push @attrs, sprintf "%s(__printf__,%s%d,%s)", $macro,
				    $prefix, $pat, $args;
	    }
	}
	if ( @attrs ) {
	    $ret .= "\n";
	    $ret .= join( "\n", map { "\t\t\t$_" } @attrs );
	}
	$ret .= ";";
	$ret = "/* $ret */" if $commented_out;
	if (@names_of_nn) {
	    $ret .= "\n#define PERL_ARGS_ASSERT_\U$plain_func\E\t\\\n\t"
		. join '; ', map "assert($_)", @names_of_nn;
	}
	$ret .= "\n#endif" if $binarycompat;
	$ret .= @attrs ? "\n\n" : "\n";

	print $pr $ret;
    }

    print $pr <<'EOF';
#ifdef PERL_CORE
#  include "pp_proto.h"
#endif
END_EXTERN_C
EOF

    read_only_bottom_close_and_rename($pr);
}

warn "$unflagged_pointers pointer arguments to clean up\n" if $unflagged_pointers;

sub readvars {
    my ($file, $pre) = @_;
    local (*FILE, $_);
    my %seen;
    open(FILE, "< $file")
	or die "embed.pl: Can't open $file: $!\n";
    while (<FILE>) {
	s/[ \t]*#.*//;		# Delete comments.
	if (/PERLVARA?I?C?\($pre,\s*(\w+)/) {
	    warn "duplicate symbol $1 while processing $file line $.\n"
		if $seen{$1}++;
	}
    }
    close(FILE);
    return sort keys %seen;
}

my @intrp = readvars 'intrpvar.h','I';
my @globvar = readvars 'perlvars.h','G';

sub hide {
    my ($from, $to, $indent) = @_;
    $indent = '' unless defined $indent;
    my $t = int(length("$indent$from") / 8);
    "#${indent}define $from" . "\t" x ($t < 3 ? 3 - $t : 1) . "$to\n";
}

sub multon ($$$) {
    my ($sym,$pre,$ptr) = @_;
    hide("PL_$sym", "($ptr$pre$sym)");
}

my $em = open_print_header('embed.h');

print $em <<'END';
/* (Doing namespace management portably in C is really gross.) */

/* By defining PERL_NO_SHORT_NAMES (not done by default) the short forms
 * (like warn instead of Perl_warn) for the API are not defined.
 * Not defining the short forms is a good thing for cleaner embedding. */

#ifndef PERL_NO_SHORT_NAMES

/* Hide global symbols */

END

my @az = ('a'..'z');

sub embed_h {
    my ($guard, $funcs) = @_;
    print $em "$guard\n" if $guard;

    my $lines;
    foreach (@$funcs) {
	if (@$_ == 1) {
	    my $cond = $_->[0];
	    # Indent the conditionals if we are wrapped in an #if/#endif pair.
	    $cond =~ s/#(.*)/#  $1/ if $guard;
	    $lines .= "$cond\n";
	    next;
	}
	my $ret = "";
	my ($flags,$retval,$func,@args) = @$_;
	unless ($flags =~ /[om]/) {
	    my $args = scalar @args;
	    if ($flags =~ /n/) {
		my $full_name = full_name($func, $flags);
		next if $full_name eq $func;	# Don't output a no-op.
		$ret = hide($func, $full_name);
	    }
	    elsif ($args and $args[$args-1] =~ /\.\.\./) {
		if ($flags =~ /p/) {
		    # we're out of luck for varargs functions under CPP
		    # So we can only do these macros for no implicit context:
		    $ret = "#ifndef PERL_IMPLICIT_CONTEXT\n"
			. hide($func, full_name($func, $flags)) . "#endif\n";
		}
	    }
	    else {
		my $alist = join(",", @az[0..$args-1]);
		$ret = "#define $func($alist)";
		my $t = int(length($ret) / 8);
		$ret .=  "\t" x ($t < 4 ? 4 - $t : 1);
		$ret .= full_name($func, $flags) . "(aTHX";
		$ret .= "_ " if $alist;
                $ret .= $alist;
                if ($flags =~ /W/) {
                    if ($alist) {
                        $ret .= " _aDEPTH";
                    } else {
                        die "Can't use W without other args (currently)";
                    }
                }
                $ret .= ")\n";
	    }
	    $ret = "#ifndef NO_MATHOMS\n$ret#endif\n" if $flags =~ /b/;
	}
	$lines .= $ret;
    }
    # Prune empty #if/#endif pairs.
    while ($lines =~ s/#\s*if[^\n]+\n#\s*endif\n//) {
    }
    # Merge adjacent blocks.
    while ($lines =~ s/(#ifndef PERL_IMPLICIT_CONTEXT
[^\n]+
)#endif
#ifndef PERL_IMPLICIT_CONTEXT
/$1/) {
    }

    print $em $lines;
    print $em "#endif\n" if $guard;
}

embed_h('', $api);
embed_h('#if defined(PERL_CORE) || defined(PERL_EXT)', $ext);
embed_h('#ifdef PERL_CORE', $core);

print $em <<'END';

#endif	/* #ifndef PERL_NO_SHORT_NAMES */

/* Compatibility stubs.  Compile extensions with -DPERL_NOCOMPAT to
   disable them.
 */

#if !defined(PERL_CORE)
#  define sv_setptrobj(rv,ptr,name)	sv_setref_iv(rv,name,PTR2IV(ptr))
#  define sv_setptrref(rv,ptr)		sv_setref_iv(rv,NULL,PTR2IV(ptr))
#endif

#if !defined(PERL_CORE) && !defined(PERL_NOCOMPAT)

/* Compatibility for various misnamed functions.  All functions
   in the API that begin with "perl_" (not "Perl_") take an explicit
   interpreter context pointer.
   The following are not like that, but since they had a "perl_"
   prefix in previous versions, we provide compatibility macros.
 */
#  define perl_atexit(a,b)		call_atexit(a,b)
END

foreach (@$embed) {
    my ($flags, $retval, $func, @args) = @$_;
    next unless $func;
    next unless $flags =~ /O/;

    my $alist = join ",", @az[0..$#args];
    my $ret = "#  define perl_$func($alist)";
    my $t = (length $ret) >> 3;
    $ret .=  "\t" x ($t < 5 ? 5 - $t : 1);
    print $em "$ret$func($alist)\n";
}

my @nocontext;
{
    my (%has_va, %has_nocontext);
    foreach (@$embed) {
	next unless @$_ > 1;
	++$has_va{$_->[2]} if $_->[-1] =~ /\.\.\./;
	++$has_nocontext{$1} if $_->[2] =~ /(.*)_nocontext/;
    }

    @nocontext = sort grep {
	$has_nocontext{$_}
	    && !/printf/ # Not clear to me why these are skipped but they are.
    } keys %has_va;
}

print $em <<'END';

/* varargs functions can't be handled with CPP macros. :-(
   This provides a set of compatibility functions that don't take
   an extra argument but grab the context pointer using the macro
   dTHX.
 */
#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_SHORT_NAMES)
END

foreach (@nocontext) {
    print $em hide($_, "Perl_${_}_nocontext", "  ");
}

print $em <<'END';
#endif

#endif /* !defined(PERL_CORE) && !defined(PERL_NOCOMPAT) */

#if !defined(PERL_IMPLICIT_CONTEXT)
/* undefined symbols, point them back at the usual ones */
END

foreach (@nocontext) {
    print $em hide("Perl_${_}_nocontext", "Perl_$_", "  ");
}

print $em <<'END';
#endif
END

read_only_bottom_close_and_rename($em);

$em = open_print_header('embedvar.h');

print $em <<'END';
/* (Doing namespace management portably in C is really gross.) */

/*
   The following combinations of MULTIPLICITY and PERL_IMPLICIT_CONTEXT
   are supported:
     1) none
     2) MULTIPLICITY	# supported for compatibility
     3) MULTIPLICITY && PERL_IMPLICIT_CONTEXT

   All other combinations of these flags are errors.

   only #3 is supported directly, while #2 is a special
   case of #3 (supported by redefining vTHX appropriately).
*/

#if defined(MULTIPLICITY)
/* cases 2 and 3 above */

#  if defined(PERL_IMPLICIT_CONTEXT)
#    define vTHX	aTHX
#  else
#    define vTHX	PERL_GET_INTERP
#  endif

END

my $sym;

for $sym (@intrp) {
    if ($sym eq 'sawampersand') {
	print $em "#ifndef PL_sawampersand\n";
    }
    print $em multon($sym,'I','vTHX->');
    if ($sym eq 'sawampersand') {
	print $em "#endif\n";
    }
}

print $em <<'END';

#endif	/* MULTIPLICITY */

#if defined(PERL_GLOBAL_STRUCT)

END

for $sym (@globvar) {
    print $em "#ifdef OS2\n" if $sym eq 'sh_path';
    print $em "#ifdef __VMS\n" if $sym eq 'perllib_sep';
    print $em multon($sym,   'G','my_vars->');
    print $em multon("G$sym",'', 'my_vars->');
    print $em "#endif\n" if $sym eq 'sh_path';
    print $em "#endif\n" if $sym eq 'perllib_sep';
}

print $em <<'END';

#endif /* PERL_GLOBAL_STRUCT */
END

read_only_bottom_close_and_rename($em);

my $capih = open_print_header('perlapi.h');

print $capih <<'EOT';
/* declare accessor functions for Perl variables */
#ifndef __perlapi_h__
#define __perlapi_h__

#if defined (MULTIPLICITY) && defined (PERL_GLOBAL_STRUCT)

START_EXTERN_C

#undef PERLVAR
#undef PERLVARA
#undef PERLVARI
#undef PERLVARIC
#define PERLVAR(p,v,t)	EXTERN_C t* Perl_##p##v##_ptr(pTHX);
#define PERLVARA(p,v,n,t)	typedef t PL_##v##_t[n];		\
			EXTERN_C PL_##v##_t* Perl_##p##v##_ptr(pTHX);
#define PERLVARI(p,v,t,i)	PERLVAR(p,v,t)
#define PERLVARIC(p,v,t,i) PERLVAR(p,v, const t)

#include "perlvars.h"

#undef PERLVAR
#undef PERLVARA
#undef PERLVARI
#undef PERLVARIC

END_EXTERN_C

#if defined(PERL_CORE)

/* accessor functions for Perl "global" variables */

/* these need to be mentioned here, or most linkers won't put them in
   the perl executable */

#ifndef PERL_NO_FORCE_LINK

START_EXTERN_C

#ifndef DOINIT
EXTCONST void * const PL_force_link_funcs[];
#else
EXTCONST void * const PL_force_link_funcs[] = {
#undef PERLVAR
#undef PERLVARA
#undef PERLVARI
#undef PERLVARIC
#define PERLVAR(p,v,t)		(void*)Perl_##p##v##_ptr,
#define PERLVARA(p,v,n,t)	PERLVAR(p,v,t)
#define PERLVARI(p,v,t,i)	PERLVAR(p,v,t)
#define PERLVARIC(p,v,t,i)	PERLVAR(p,v,t)

/* In Tru64 (__DEC && __osf__) the cc option -std1 causes that one
 * cannot cast between void pointers and function pointers without
 * info level warnings.  The PL_force_link_funcs[] would cause a few
 * hundred of those warnings.  In code one can circumnavigate this by using
 * unions that overlay the different pointers, but in declarations one
 * cannot use this trick.  Therefore we just disable the warning here
 * for the duration of the PL_force_link_funcs[] declaration. */

#if defined(__DECC) && defined(__osf__)
#pragma message save
#pragma message disable (nonstandcast)
#endif

#include "perlvars.h"

#if defined(__DECC) && defined(__osf__)
#pragma message restore
#endif

#undef PERLVAR
#undef PERLVARA
#undef PERLVARI
#undef PERLVARIC
};
#endif	/* DOINIT */

END_EXTERN_C

#endif	/* PERL_NO_FORCE_LINK */

#else	/* !PERL_CORE */

EOT

foreach $sym (@globvar) {
    print $capih
	"#undef  PL_$sym\n" . hide("PL_$sym", "(*Perl_G${sym}_ptr(NULL))");
}

print $capih <<'EOT';

#endif /* !PERL_CORE */
#endif /* MULTIPLICITY && PERL_GLOBAL_STRUCT */

#endif /* __perlapi_h__ */
EOT

read_only_bottom_close_and_rename($capih);

my $capi = open_print_header('perlapi.c', <<'EOQ');
 *
 *
 * Up to the threshold of the door there mounted a flight of twenty-seven
 * broad stairs, hewn by some unknown art of the same black stone.  This
 * was the only entrance to the tower; ...
 *
 *     [p.577 of _The Lord of the Rings_, III/x: "The Voice of Saruman"]
 *
 */
EOQ

print $capi <<'EOT';
#include "EXTERN.h"
#include "perl.h"
#include "perlapi.h"

#if defined (MULTIPLICITY) && defined (PERL_GLOBAL_STRUCT)

/* accessor functions for Perl "global" variables */
START_EXTERN_C

#undef PERLVARI
#define PERLVARI(p,v,t,i) PERLVAR(p,v,t)

#undef PERLVAR
#undef PERLVARA
#define PERLVAR(p,v,t)		t* Perl_##p##v##_ptr(pTHX)		\
			{ dVAR; PERL_UNUSED_CONTEXT; return &(PL_##v); }
#define PERLVARA(p,v,n,t)	PL_##v##_t* Perl_##p##v##_ptr(pTHX)	\
			{ dVAR; PERL_UNUSED_CONTEXT; return &(PL_##v); }
#undef PERLVARIC
#define PERLVARIC(p,v,t,i)	\
			const t* Perl_##p##v##_ptr(pTHX)		\
			{ PERL_UNUSED_CONTEXT; return (const t *)&(PL_##v); }
#include "perlvars.h"

#undef PERLVAR
#undef PERLVARA
#undef PERLVARI
#undef PERLVARIC

END_EXTERN_C

#endif /* MULTIPLICITY && PERL_GLOBAL_STRUCT */
EOT

read_only_bottom_close_and_rename($capi);

# ex: set ts=8 sts=4 sw=4 noet:
Commit	Line	Data
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	22	require 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	25	use strict;
88e01c9d AL	26
36bb303b NC	27	BEGIN {
36bb303b NC	28	# Get function prototypes
3d7c117d MB	29	require './regen/regen_lib.pl';
3d7c117d MB	30	require './regen/embed_lib.pl';
36bb303b NC	31	}
36bb303b NC	32
916e4025	33	my $unflagged_pointers;
88e01c9d	34
cea2e8a9	35	#
346f75ff	36	# See database of global and static function prototypes in embed.fnc
cea2e8a9 GS	37	# This is used to generate prototype headers under various configurations,
	38	# export symbols lists for different platforms, and macros to provide an
	39	# implicit interpreter context argument.
	40	#
	41
03b6588a KW	42	sub full_name ($$) { # Returns the function name with potentially the
	43	# prefixes 'S_' or 'Perl_'
	44	my ($func, $flags) = @_;
	45
5ff52e3c	46	return "Perl_$func" if $flags =~ /p/;
4d2e4fbc	47	return "S_$func" if $flags =~ /[si]/;
03b6588a KW	48	return $func;
	49	}
	50
5f8dc073	51	sub open_print_header {
56fd1190	52	my ($file, $quote) = @_;
4373e329	53
5f8dc073 NC	54	return open_new($file, '>',
	55	{ file => $file, style => '*', by => 'regen/embed.pl',
	56	from => ['data in embed.fnc', 'regen/embed.pl',
	57	'regen/opcodes', 'intrpvar.h', 'perlvars.h'],
	58	final => "\nEdit those files and run 'make regen_headers' to effect changes.\n",
	59	copyright => [1993 .. 2009], quote => $quote });
	60	}
7f1be197	61
5ccbf88e NC	62	my ($embed, $core, $ext, $api) = setup_embed();
5ccbf88e NC	63
cea2e8a9	64	# generate proto.h
9516dc40	65	{
5f8dc073 NC	66	my $pr = open_print_header("proto.h");
5f8dc073 NC	67	print $pr "START_EXTERN_C\n";
f8394530	68	my $ret;
9516dc40	69
5ccbf88e	70	foreach (@$embed) {
9516dc40 NC	71	if (@$_ == 1) {
	72	print $pr "$_->[0]\n";
	73	next;
	74	}
	75
	76	my ($flags,$retval,$plain_func,@args) = @$_;
21553840	77	if ($flags =~ / ( [^AabDdEfiMmnOoPpRrsUWXx] ) /x) {
556343f1 KW	78	warn "flag $1 is not legal (for function $plain_func)";
556343f1 KW	79	}
4373e329	80	my @nonnull;
21553840	81	my $has_depth = ( $flags =~ /W/ );
4373e329	82	my $has_context = ( $flags !~ /n/ );
88e01c9d	83	my $never_returns = ( $flags =~ /r/ );
aa4ca557	84	my $binarycompat = ( $flags =~ /b/ );
3f1866a8	85	my $commented_out = ( ! $binarycompat && $flags =~ /m/ );
88e01c9d	86	my $is_malloc = ( $flags =~ /a/ );
b289a0bd	87	my $can_ignore = ( $flags !~ /R/ ) && ( $flags !~ /P/ ) && !$is_malloc;
7918f24d NC	88	my @names_of_nn;
7918f24d NC	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	94
4d2e4fbc KW	95	warn "$plain_func: s flag is mutually exclusive from the i and p plags"
4d2e4fbc KW	96	if $flags =~ /s/ && $flags =~ /[ip]/;
88e01c9d	97
71556506	98	if ($flags =~ /([si])/) {
98c015b7 DD	99	my $type;
	100	if ($never_returns) {
	101	$type = $1 eq 's' ? "PERL_STATIC_NO_RET" : "PERL_STATIC_INLINE_NO_RET";
	102	}
	103	else {
	104	$type = $1 eq 's' ? "STATIC" : "PERL_STATIC_INLINE";
	105	}
c707756e	106	$retval = "$type $retval";
cea2e8a9	107	}
0cb96387	108	else {
718fae11	109	if ($never_returns) {
c707756e	110	$retval = "PERL_CALLCONV_NO_RET $retval";
718fae11 JD	111	}
718fae11 JD	112	else {
c707756e	113	$retval = "PERL_CALLCONV $retval";
718fae11	114	}
cea2e8a9	115	}
03b6588a	116	$func = full_name($plain_func, $flags);
3f1866a8 KW	117	$ret = "";
	118	$ret .= "#ifndef NO_MATHOMS\n" if $binarycompat;
	119	$ret .= "$retval\t$func(";
4373e329 AL	120	if ( $has_context ) {
4373e329 AL	121	$ret .= @args ? "pTHX_ " : "pTHX";
cea2e8a9 GS	122	}
cea2e8a9 GS	123	if (@args) {
4373e329 AL	124	my $n;
	125	for my $arg ( @args ) {
	126	++$n;
7827dc65 AL	127	if ( $arg =~ /\*/ && $arg !~ /\b(NN\|NULLOK)\b/ ) {
7827dc65 AL	128	warn "$func: $arg needs NN or NULLOK\n";
7827dc65 AL	129	++$unflagged_pointers;
7827dc65 AL	130	}
88e01c9d AL	131	my $nn = ( $arg =~ s/\s*\bNN\b\s+// );
	132	push( @nonnull, $n ) if $nn;
	133
	134	my $nullok = ( $arg =~ s/\s*\bNULLOK\b\s+// ); # strip NULLOK with no effect
c48640ec AL	135
	136	# Make sure each arg has at least a type and a var name.
	137	# An arg of "int" is valid C, but want it to be "int foo".
	138	my $temp_arg = $arg;
	139	$temp_arg =~ s/\*//g;
	140	$temp_arg =~ s/\s\bstruct\b\s/ /g;
7918f24d NC	141	if ( ($temp_arg ne "...")
	142	&& ($temp_arg !~ /\w+\s+(\w+)(?:\[\d+\])?\s*$/) ) {
	143	warn "$func: $arg ($n) doesn't have a name\n";
c48640ec	144	}
aa4ca557	145	if (defined $1 && $nn && !($commented_out && !$binarycompat)) {
7918f24d NC	146	push @names_of_nn, $1;
7918f24d NC	147	}
4373e329	148	}
cea2e8a9 GS	149	$ret .= join ", ", @args;
	150	}
	151	else {
4373e329	152	$ret .= "void" if !$has_context;
cea2e8a9	153	}
21553840	154	$ret .= " _pDEPTH" if $has_depth;
cea2e8a9	155	$ret .= ")";
f54cb97a AL	156	my @attrs;
f54cb97a AL	157	if ( $flags =~ /r/ ) {
abb2c242	158	push @attrs, "__attribute__noreturn__";
f54cb97a	159	}
a5c26493 RGS	160	if ( $flags =~ /D/ ) {
	161	push @attrs, "__attribute__deprecated__";
	162	}
88e01c9d	163	if ( $is_malloc ) {
abb2c242	164	push @attrs, "__attribute__malloc__";
f54cb97a	165	}
88e01c9d	166	if ( !$can_ignore ) {
abb2c242	167	push @attrs, "__attribute__warn_unused_result__";
f54cb97a AL	168	}
f54cb97a AL	169	if ( $flags =~ /P/ ) {
abb2c242	170	push @attrs, "__attribute__pure__";
f54cb97a	171	}
1c846c1f	172	if( $flags =~ /f/ ) {
cdfeb707	173	my $prefix = $has_context ? 'pTHX_' : '';
5d37acd6 DM	174	my ($args, $pat);
	175	if ($args[-1] eq '...') {
	176	$args = scalar @args;
	177	$pat = $args - 1;
	178	$args = $prefix . $args;
	179	}
	180	else {
	181	# don't check args, and guess which arg is the pattern
	182	# (one of 'fmt', 'pat', 'f'),
	183	$args = 0;
	184	my @fmts = grep $args[$_] =~ /\b(f\|pat\|fmt)$/, 0..$#args;
	185	if (@fmts != 1) {
	186	die "embed.pl: '$plain_func': can't determine pattern arg\n";
	187	}
	188	$pat = $fmts[0] + 1;
	189	}
	190	my $macro = grep($_ == $pat, @nonnull)
cdfeb707 RB	191	? '__attribute__format__'
cdfeb707 RB	192	: '__attribute__format__null_ok__';
531b2663 DM	193	if ($plain_func =~ /strftime/) {
	194	push @attrs, sprintf "%s(__strftime__,%s1,0)", $macro, $prefix;
	195	}
	196	else {
5d37acd6 DM	197	push @attrs, sprintf "%s(__printf__,%s%d,%s)", $macro,
5d37acd6 DM	198	$prefix, $pat, $args;
531b2663	199	}
894356b3	200	}
f54cb97a AL	201	if ( @attrs ) {
	202	$ret .= "\n";
	203	$ret .= join( "\n", map { "\t\t\t$_" } @attrs );
4373e329	204	}
af3c7592	205	$ret .= ";";
88e01c9d	206	$ret = "/* $ret */" if $commented_out;
7918f24d NC	207	if (@names_of_nn) {
	208	$ret .= "\n#define PERL_ARGS_ASSERT_\U$plain_func\E\t\\\n\t"
	209	. join '; ', map "assert($_)", @names_of_nn;
	210	}
3f1866a8	211	$ret .= "\n#endif" if $binarycompat;
f54cb97a	212	$ret .= @attrs ? "\n\n" : "\n";
9516dc40 NC	213
9516dc40 NC	214	print $pr $ret;
cea2e8a9	215	}
9516dc40	216
897d3989 NC	217	print $pr <<'EOF';
	218	#ifdef PERL_CORE
	219	# include "pp_proto.h"
	220	#endif
	221	END_EXTERN_C
897d3989	222	EOF
9516dc40	223
ce716c52	224	read_only_bottom_close_and_rename($pr);
cea2e8a9 GS	225	}
cea2e8a9 GS	226
7827dc65	227	warn "$unflagged_pointers pointer arguments to clean up\n" if $unflagged_pointers;
cea2e8a9	228
adf34b4b NC	229	sub readvars {
adf34b4b NC	230	my ($file, $pre) = @_;
d4cce5f1	231	local (*FILE, $_);
adf34b4b	232	my %seen;
d4cce5f1 NIS	233	open(FILE, "< $file")
	234	or die "embed.pl: Can't open $file: $!\n";
	235	while (<FILE>) {
	236	s/[ \t]#.//; # Delete comments.
115ff745	237	if (/PERLVARA?I?C?\($pre,\s*(\w+)/) {
adf34b4b NC	238	warn "duplicate symbol $1 while processing $file line $.\n"
adf34b4b NC	239	if $seen{$1}++;
d4cce5f1 NIS	240	}
	241	}
	242	close(FILE);
adf34b4b	243	return sort keys %seen;
d4cce5f1 NIS	244	}
d4cce5f1 NIS	245
adf34b4b NC	246	my @intrp = readvars 'intrpvar.h','I';
adf34b4b NC	247	my @globvar = readvars 'perlvars.h','G';
d4cce5f1	248
125218eb NC	249	sub hide {
	250	my ($from, $to, $indent) = @_;
	251	$indent = '' unless defined $indent;
	252	my $t = int(length("$indent$from") / 8);
	253	"#${indent}define $from" . "\t" x ($t < 3 ? 3 - $t : 1) . "$to\n";
5f05dabc	254	}
c6af7a1a	255
d4cce5f1 NIS	256	sub multon ($$$) {
d4cce5f1 NIS	257	my ($sym,$pre,$ptr) = @_;
3280af22	258	hide("PL_$sym", "($ptr$pre$sym)");
5f05dabc	259	}
54aff467	260
5f8dc073	261	my $em = open_print_header('embed.h');
e50aee73	262
5f8dc073	263	print $em <<'END';
e50aee73 AD	264	/* (Doing namespace management portably in C is really gross.) */
e50aee73 AD	265
d51482e4 JH	266	/* By defining PERL_NO_SHORT_NAMES (not done by default) the short forms
	267	* (like warn instead of Perl_warn) for the API are not defined.
	268	* Not defining the short forms is a good thing for cleaner embedding. */
	269
	270	#ifndef PERL_NO_SHORT_NAMES
820c3be9	271
22c35a8c	272	/* Hide global symbols */
5f05dabc	273
e50aee73 AD	274	END
e50aee73 AD	275
cea2e8a9 GS	276	my @az = ('a'..'z');
cea2e8a9 GS	277
e8a67806 NC	278	sub embed_h {
	279	my ($guard, $funcs) = @_;
	280	print $em "$guard\n" if $guard;
	281
2a4d8072	282	my $lines;
e8a67806 NC	283	foreach (@$funcs) {
	284	if (@$_ == 1) {
	285	my $cond = $_->[0];
	286	# Indent the conditionals if we are wrapped in an #if/#endif pair.
	287	$cond =~ s/#(.*)/# $1/ if $guard;
2a4d8072	288	$lines .= "$cond\n";
e8a67806 NC	289	next;
	290	}
	291	my $ret = "";
	292	my ($flags,$retval,$func,@args) = @$_;
af3c7592	293	unless ($flags =~ /[om]/) {
cea2e8a9	294	my $args = scalar @args;
7a5a24f7	295	if ($flags =~ /n/) {
da8a4494 KW	296	my $full_name = full_name($func, $flags);
	297	next if $full_name eq $func; # Don't output a no-op.
	298	$ret = hide($func, $full_name);
cea2e8a9	299	}
7a5a24f7	300	elsif ($args and $args[$args-1] =~ /\.\.\./) {
e64ca59f NC	301	if ($flags =~ /p/) {
	302	# we're out of luck for varargs functions under CPP
	303	# So we can only do these macros for no implicit context:
	304	$ret = "#ifndef PERL_IMPLICIT_CONTEXT\n"
03b6588a	305	. hide($func, full_name($func, $flags)) . "#endif\n";
e64ca59f	306	}
7a5a24f7	307	}
cea2e8a9 GS	308	else {
	309	my $alist = join(",", @az[0..$args-1]);
	310	$ret = "#define $func($alist)";
	311	my $t = int(length($ret) / 8);
	312	$ret .= "\t" x ($t < 4 ? 4 - $t : 1);
03b6588a	313	$ret .= full_name($func, $flags) . "(aTHX";
cea2e8a9	314	$ret .= "_ " if $alist;
21553840 YO	315	$ret .= $alist;
	316	if ($flags =~ /W/) {
	317	if ($alist) {
	318	$ret .= " _aDEPTH";
	319	} else {
	320	die "Can't use W without other args (currently)";
	321	}
	322	}
	323	$ret .= ")\n";
cea2e8a9	324	}
3f1866a8	325	$ret = "#ifndef NO_MATHOMS\n$ret#endif\n" if $flags =~ /b/;
cea2e8a9	326	}
2a4d8072	327	$lines .= $ret;
cea2e8a9	328	}
2a4d8072 NC	329	# Prune empty #if/#endif pairs.
	330	while ($lines =~ s/#\sif[^\n]+\n#\sendif\n//) {
	331	}
b2e549c0 NC	332	# Merge adjacent blocks.
	333	while ($lines =~ s/(#ifndef PERL_IMPLICIT_CONTEXT
	334	[^\n]+
	335	)#endif
	336	#ifndef PERL_IMPLICIT_CONTEXT
	337	/$1/) {
	338	}
	339
2a4d8072	340	print $em $lines;
e8a67806	341	print $em "#endif\n" if $guard;
da4ddda1 NC	342	}
da4ddda1 NC	343
5ccbf88e NC	344	embed_h('', $api);
	345	embed_h('#if defined(PERL_CORE) \|\| defined(PERL_EXT)', $ext);
	346	embed_h('#ifdef PERL_CORE', $core);
e8a67806	347
424a4936	348	print $em <<'END';
e50aee73	349
d51482e4	350	#endif /* #ifndef PERL_NO_SHORT_NAMES */
35209cc8	351
cea2e8a9 GS	352	/* Compatibility stubs. Compile extensions with -DPERL_NOCOMPAT to
	353	disable them.
	354	*/
	355
538feb02	356	#if !defined(PERL_CORE)
5bc28da9	357	# define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,PTR2IV(ptr))
a0714e2c	358	# define sv_setptrref(rv,ptr) sv_setref_iv(rv,NULL,PTR2IV(ptr))
538feb02	359	#endif
cea2e8a9	360
08e5223a	361	#if !defined(PERL_CORE) && !defined(PERL_NOCOMPAT)
cea2e8a9 GS	362
	363	/* Compatibility for various misnamed functions. All functions
	364	in the API that begin with "perl_" (not "Perl_") take an explicit
	365	interpreter context pointer.
	366	The following are not like that, but since they had a "perl_"
	367	prefix in previous versions, we provide compatibility macros.
	368	*/
65cec589	369	# define perl_atexit(a,b) call_atexit(a,b)
7b53c8ee NC	370	END
7b53c8ee NC	371
3a54c8e7 NC	372	foreach (@$embed) {
	373	my ($flags, $retval, $func, @args) = @$_;
	374	next unless $func;
	375	next unless $flags =~ /O/;
7b53c8ee NC	376
	377	my $alist = join ",", @az[0..$#args];
	378	my $ret = "# define perl_$func($alist)";
	379	my $t = (length $ret) >> 3;
	380	$ret .= "\t" x ($t < 5 ? 5 - $t : 1);
3a54c8e7 NC	381	print $em "$ret$func($alist)\n";
3a54c8e7 NC	382	}
7b53c8ee	383
eacd26c2 NC	384	my @nocontext;
	385	{
	386	my (%has_va, %has_nocontext);
5ccbf88e	387	foreach (@$embed) {
eacd26c2 NC	388	next unless @$_ > 1;
	389	++$has_va{$_->[2]} if $_->[-1] =~ /\.\.\./;
	390	++$has_nocontext{$1} if $_->[2] =~ /(.*)_nocontext/;
	391	}
	392
	393	@nocontext = sort grep {
	394	$has_nocontext{$_}
	395	&& !/printf/ # Not clear to me why these are skipped but they are.
	396	} keys %has_va;
	397	}
	398
7b53c8ee	399	print $em <<'END';
cea2e8a9 GS	400
	401	/* varargs functions can't be handled with CPP macros. :-(
	402	This provides a set of compatibility functions that don't take
	403	an extra argument but grab the context pointer using the macro
	404	dTHX.
	405	*/
d51482e4	406	#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_SHORT_NAMES)
125218eb NC	407	END
125218eb NC	408
eacd26c2	409	foreach (@nocontext) {
125218eb NC	410	print $em hide($_, "Perl_${_}_nocontext", " ");
	411	}
	412
	413	print $em <<'END';
cea2e8a9 GS	414	#endif
	415
	416	#endif /* !defined(PERL_CORE) && !defined(PERL_NOCOMPAT) */
	417
	418	#if !defined(PERL_IMPLICIT_CONTEXT)
	419	/* undefined symbols, point them back at the usual ones */
125218eb NC	420	END
125218eb NC	421
eacd26c2	422	foreach (@nocontext) {
125218eb NC	423	print $em hide("Perl_${_}_nocontext", "Perl_$_", " ");
	424	}
	425
	426	print $em <<'END';
cea2e8a9	427	#endif
d4cce5f1 NIS	428	END
d4cce5f1 NIS	429
ce716c52	430	read_only_bottom_close_and_rename($em);
d4cce5f1	431
5f8dc073	432	$em = open_print_header('embedvar.h');
d4cce5f1	433
5f8dc073	434	print $em <<'END';
d4cce5f1 NIS	435	/* (Doing namespace management portably in C is really gross.) */
d4cce5f1 NIS	436
54aff467	437	/*
3db8f154 MB	438	The following combinations of MULTIPLICITY and PERL_IMPLICIT_CONTEXT
3db8f154 MB	439	are supported:
54aff467 GS	440	1) none
	441	2) MULTIPLICITY # supported for compatibility
	442	3) MULTIPLICITY && PERL_IMPLICIT_CONTEXT
54aff467 GS	443
	444	All other combinations of these flags are errors.
	445
3db8f154	446	only #3 is supported directly, while #2 is a special
54aff467 GS	447	case of #3 (supported by redefining vTHX appropriately).
54aff467 GS	448	*/
cea2e8a9	449
54aff467	450	#if defined(MULTIPLICITY)
3db8f154	451	/* cases 2 and 3 above */
cea2e8a9	452
54aff467 GS	453	# if defined(PERL_IMPLICIT_CONTEXT)
	454	# define vTHX aTHX
	455	# else
	456	# define vTHX PERL_GET_INTERP
	457	# endif
cea2e8a9	458
e50aee73 AD	459	END
e50aee73 AD	460
adf34b4b NC	461	my $sym;
	462
	463	for $sym (@intrp) {
1a904fc8 FC	464	if ($sym eq 'sawampersand') {
	465	print $em "#ifndef PL_sawampersand\n";
	466	}
424a4936	467	print $em multon($sym,'I','vTHX->');
1a904fc8 FC	468	if ($sym eq 'sawampersand') {
	469	print $em "#endif\n";
	470	}
d4cce5f1 NIS	471	}
d4cce5f1 NIS	472
424a4936	473	print $em <<'END';
d4cce5f1	474
54aff467	475	#endif /* MULTIPLICITY */
d4cce5f1	476
54aff467	477	#if defined(PERL_GLOBAL_STRUCT)
22239a37 NIS	478
	479	END
	480
adf34b4b	481	for $sym (@globvar) {
0447859b	482	print $em "#ifdef OS2\n" if $sym eq 'sh_path';
483efd0a	483	print $em "#ifdef __VMS\n" if $sym eq 'perllib_sep';
424a4936 NC	484	print $em multon($sym, 'G','my_vars->');
424a4936 NC	485	print $em multon("G$sym",'', 'my_vars->');
0447859b	486	print $em "#endif\n" if $sym eq 'sh_path';
483efd0a	487	print $em "#endif\n" if $sym eq 'perllib_sep';
22239a37 NIS	488	}
22239a37 NIS	489
424a4936	490	print $em <<'END';
22239a37	491
22239a37	492	#endif /* PERL_GLOBAL_STRUCT */
84fee439 NIS	493	END
84fee439 NIS	494
ce716c52	495	read_only_bottom_close_and_rename($em);
c6af7a1a	496
5f8dc073	497	my $capih = open_print_header('perlapi.h');
51371543	498
5f8dc073	499	print $capih <<'EOT';
51371543	500	/* declare accessor functions for Perl variables */
6f4183fe GS	501	#ifndef __perlapi_h__
6f4183fe GS	502	#define __perlapi_h__
51371543	503
87b9e160	504	#if defined (MULTIPLICITY) && defined (PERL_GLOBAL_STRUCT)
c5be433b	505
51371543 GS	506	START_EXTERN_C
	507
	508	#undef PERLVAR
	509	#undef PERLVARA
	510	#undef PERLVARI
	511	#undef PERLVARIC
115ff745 NC	512	#define PERLVAR(p,v,t) EXTERN_C t* Perl_##p##v##_ptr(pTHX);
	513	#define PERLVARA(p,v,n,t) typedef t PL_##v##_t[n]; \
	514	EXTERN_C PL_##v##_t* Perl_##p##v##_ptr(pTHX);
	515	#define PERLVARI(p,v,t,i) PERLVAR(p,v,t)
	516	#define PERLVARIC(p,v,t,i) PERLVAR(p,v, const t)
51371543	517
51371543 GS	518	#include "perlvars.h"
	519
	520	#undef PERLVAR
	521	#undef PERLVARA
	522	#undef PERLVARI
	523	#undef PERLVARIC
27da23d5	524
51371543 GS	525	END_EXTERN_C
51371543 GS	526
682fc664	527	#if defined(PERL_CORE)
6f4183fe	528
87b9e160	529	/* accessor functions for Perl "global" variables */
682fc664 GS	530
	531	/* these need to be mentioned here, or most linkers won't put them in
	532	the perl executable */
	533
	534	#ifndef PERL_NO_FORCE_LINK
	535
	536	START_EXTERN_C
	537
	538	#ifndef DOINIT
27da23d5	539	EXTCONST void * const PL_force_link_funcs[];
682fc664	540	#else
27da23d5	541	EXTCONST void * const PL_force_link_funcs[] = {
682fc664 GS	542	#undef PERLVAR
	543	#undef PERLVARA
	544	#undef PERLVARI
	545	#undef PERLVARIC
115ff745 NC	546	#define PERLVAR(p,v,t) (void*)Perl_##p##v##_ptr,
	547	#define PERLVARA(p,v,n,t) PERLVAR(p,v,t)
	548	#define PERLVARI(p,v,t,i) PERLVAR(p,v,t)
	549	#define PERLVARIC(p,v,t,i) PERLVAR(p,v,t)
682fc664	550
3c0f78ca JH	551	/* In Tru64 (__DEC && __osf__) the cc option -std1 causes that one
	552	* cannot cast between void pointers and function pointers without
	553	* info level warnings. The PL_force_link_funcs[] would cause a few
	554	* hundred of those warnings. In code one can circumnavigate this by using
	555	* unions that overlay the different pointers, but in declarations one
	556	* cannot use this trick. Therefore we just disable the warning here
	557	* for the duration of the PL_force_link_funcs[] declaration. */
	558
	559	#if defined(__DECC) && defined(__osf__)
	560	#pragma message save
	561	#pragma message disable (nonstandcast)
	562	#endif
	563
682fc664 GS	564	#include "perlvars.h"
682fc664 GS	565
3c0f78ca JH	566	#if defined(__DECC) && defined(__osf__)
	567	#pragma message restore
	568	#endif
	569
682fc664 GS	570	#undef PERLVAR
	571	#undef PERLVARA
	572	#undef PERLVARI
	573	#undef PERLVARIC
	574	};
	575	#endif /* DOINIT */
	576
acfe0abc	577	END_EXTERN_C
682fc664 GS	578
	579	#endif /* PERL_NO_FORCE_LINK */
	580
	581	#else /* !PERL_CORE */
51371543 GS	582
	583	EOT
	584
adf34b4b	585	foreach $sym (@globvar) {
5f9c6535 NC	586	print $capih
5f9c6535 NC	587	"#undef PL_$sym\n" . hide("PL_$sym", "(*Perl_G${sym}_ptr(NULL))");
6f4183fe GS	588	}
6f4183fe GS	589
424a4936	590	print $capih <<'EOT';
6f4183fe GS	591
6f4183fe GS	592	#endif /* !PERL_CORE */
87b9e160	593	#endif /* MULTIPLICITY && PERL_GLOBAL_STRUCT */
6f4183fe GS	594
6f4183fe GS	595	#endif /* __perlapi_h__ */
6f4183fe	596	EOT
ce716c52 NC	597
ce716c52 NC	598	read_only_bottom_close_and_rename($capih);
51371543	599
5f8dc073	600	my $capi = open_print_header('perlapi.c', <<'EOQ');
56fd1190	601	*
892eaa71 NC	602	*
	603	* Up to the threshold of the door there mounted a flight of twenty-seven
	604	* broad stairs, hewn by some unknown art of the same black stone. This
	605	* was the only entrance to the tower; ...
	606	*
	607	* [p.577 of _The Lord of the Rings_, III/x: "The Voice of Saruman"]
	608	*
	609	*/
56fd1190	610	EOQ
892eaa71	611
5f8dc073	612	print $capi <<'EOT';
51371543 GS	613	#include "EXTERN.h"
	614	#include "perl.h"
	615	#include "perlapi.h"
	616
87b9e160	617	#if defined (MULTIPLICITY) && defined (PERL_GLOBAL_STRUCT)
51371543	618
87b9e160	619	/* accessor functions for Perl "global" variables */
51371543 GS	620	START_EXTERN_C
51371543 GS	621
51371543	622	#undef PERLVARI
115ff745	623	#define PERLVARI(p,v,t,i) PERLVAR(p,v,t)
c5be433b GS	624
	625	#undef PERLVAR
	626	#undef PERLVARA
115ff745	627	#define PERLVAR(p,v,t) t* Perl_##p##v##_ptr(pTHX) \
96a5add6	628	{ dVAR; PERL_UNUSED_CONTEXT; return &(PL_##v); }
115ff745	629	#define PERLVARA(p,v,n,t) PL_##v##_t* Perl_##p##v##_ptr(pTHX) \
96a5add6	630	{ dVAR; PERL_UNUSED_CONTEXT; return &(PL_##v); }
34f7a5fe	631	#undef PERLVARIC
115ff745 NC	632	#define PERLVARIC(p,v,t,i) \
115ff745 NC	633	const t* Perl_##p##v##_ptr(pTHX) \
96a5add6	634	{ PERL_UNUSED_CONTEXT; return (const t *)&(PL_##v); }
51371543 GS	635	#include "perlvars.h"
	636
	637	#undef PERLVAR
	638	#undef PERLVARA
	639	#undef PERLVARI
	640	#undef PERLVARIC
27da23d5	641
acfe0abc	642	END_EXTERN_C
6f4183fe	643
87b9e160	644	#endif /* MULTIPLICITY && PERL_GLOBAL_STRUCT */
51371543 GS	645	EOT
51371543 GS	646
ce716c52	647	read_only_bottom_close_and_rename($capi);
acfe0abc	648
1b6737cc	649	# ex: set ts=8 sts=4 sw=4 noet: