- no 'use warnings'
Specifying a compatibility version higher than the version of perl you
-are using to run h2xs will have no effect.
+are using to run h2xs will have no effect. If unspecified h2xs will default
+to compatibility with the version of perl you are using to run h2xs.
=item B<-c>, B<--omit-constant>
Allows an extension to be created for a header even if that header is
not found in standard include directories.
+=item B<-g>, B<--global>
+
+Include code for safely storing static data in the .xs file.
+Extensions that do no make use of static data can ignore this option.
+
=item B<-h>, B<-?>, B<--help>
Print the usage, help and version for this h2xs and exit.
=cut
+# ' # Grr
use strict;
use Text::Wrap;
$Text::Wrap::huge = 'overflow';
$Text::Wrap::columns = 80;
-use ExtUtils::Constant qw (constant_types C_constant XS_constant autoload);
+use ExtUtils::Constant qw (WriteConstants WriteMakefileSnippet autoload);
+use File::Compare;
sub usage {
warn "@_\n" if @_;
-d, --debugging Turn on debugging messages.
-f, --force Force creation of the extension even if the C header
does not exist.
+ -g, --global Include code for safely storing static data in the .xs file.
-h, -?, --help Display this help message
-k, --omit-const-func Omit 'const' attribute on function arguments
(used with -x).
-p, --remove-prefix Specify a prefix which should be removed from the
Perl function names.
-s, --const-subs Create subroutines for specified macros.
- -t, --default-type Default type for autoloaded constants
+ -t, --default-type Default type for autoloaded constants (default is IV)
--use-new-tests Use Test::More in backward compatible modules
--use-old-tests Use the module Test rather than Test::More
-v, --version Specify a version number for this extension.
$opt_c,
$opt_d,
$opt_f,
+ $opt_g,
$opt_h,
$opt_k,
$opt_m,
'omit-constant|c' => \$opt_c,
'debugging|d' => \$opt_d,
'force|f' => \$opt_f,
+ 'global|g' => \$opt_g,
'help|h|?' => \$opt_h,
'omit-const-func|k' => \$opt_k,
'gen-tied-var|m' => \$opt_m,
usage "You must provide the backwards compatibility version in X.Y.Z form. "
. "(i.e. 5.5.0)\n";
my ($maj,$min,$sub) = split(/\./,$opt_b,3);
- $compat_version = sprintf("%d.%03d%02d",$maj,$min,$sub);
-}
+ if ($maj < 5 || ($maj == 5 && $min < 6)) {
+ $compat_version = sprintf("%d.%03d%02d",$maj,$min,$sub);
+ } else {
+ $compat_version = sprintf("%d.%03d%03d",$maj,$min,$sub);
+ }
+} else {
+ my ($maj,$min,$sub) = $compat_version =~ /(\d+)\.(\d\d\d)(\d\d\d?)/;
+ warn sprintf <<'EOF', $maj,$min,$sub;
+Defaulting to backwards compatibility with perl %d.%d.%d
+If you intend this module to be compatible with earlier perl versions, please
+specify a minimum perl version with the -b option.
+
+EOF
+}
if( $opt_v ){
$TEMPLATE_VERSION = $opt_v;
# -X implies -c and -f
$opt_c = $opt_f = 1 if $opt_X;
+$opt_t ||= 'IV';
+
my %const_xsub = map { $_,1 } split(/,+/, $opt_s) if $opt_s;
my $extralibs = '';
}
}
+# Save current directory so that C::Scan can use it
+my $cwd = File::Spec->rel2abs( File::Spec->curdir );
-
-my ($ext, $nested, @modparts, $modfname, $modpname);
+my ($ext, $nested, @modparts, $modfname, $modpname, $constsfname);
$ext = chdir 'ext' ? 'ext/' : '';
@modparts = ();
$modfname = $modpname = $module;
}
+# Don't trip up if someone calls their module 'constants'
+$constsfname = $modfname eq 'constants' ? 'constdefs' : 'constants';
if ($opt_O) {
my @vdecls;
if( ! $opt_X ){ # use XS, unless it was disabled
+ open(COMPAT, ">compat.h") || die "Can't create $ext$modpname/compat.h: $!\n";
+ warn "Writing $ext$modpname/compat.h\n";
+ print COMPAT <<EOM, <<'EOM';
+/* WARNING: This file has been autogenerated by h2xs $H2XS_VERSION */
+
+EOM
+
+
+#ifndef PERL_VERSION
+
+# include "patchlevel.h"
+# define PERL_REVISION 5
+# define PERL_VERSION PATCHLEVEL
+# define PERL_SUBVERSION SUBVERSION
+
+#endif /* PERL_VERSION */
+
+
+
+/*
+ * This file is taken from perl.h & modified slightly to make it backward
+ * comapable with older versions of Perl.
+ *
+ */
+
+#if PERL_REVISION == 5 && \
+ (PERL_VERSION < 7 || (PERL_VERSION == 7 && PERL_SUBVERSION < 2 ))
+
+/*
+ * Boilerplate macros for initializing and accessing interpreter-local
+ * data from C. All statics in extensions should be reworked to use
+ * this, if you want to make the extension thread-safe. See ext/re/re.xs
+ * for an example of the use of these macros.
+ *
+ * Code that uses these macros is responsible for the following:
+ * 1. #define MY_CXT_KEY to a unique string, e.g. "DynaLoader_guts"
+ * 2. Declare a typedef named my_cxt_t that is a structure that contains
+ * all the data that needs to be interpreter-local.
+ * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
+ * 4. Use the MY_CXT_INIT macro such that it is called exactly once
+ * (typically put in the BOOT: section).
+ * 5. Use the members of the my_cxt_t structure everywhere as
+ * MY_CXT.member.
+ * 6. Use the dMY_CXT macro (a declaration) in all the functions that
+ * access MY_CXT.
+ */
+
+#if defined(MULTIPLICITY) || defined(PERL_OBJECT) || \
+ defined(PERL_CAPI) || defined(PERL_IMPLICIT_CONTEXT)
+
+/* This must appear in all extensions that define a my_cxt_t structure,
+ * right after the definition (i.e. at file scope). The non-threads
+ * case below uses it to declare the data as static. */
+#define START_MY_CXT
+
+#if PERL_REVISION == 5 && \
+ (PERL_VERSION < 4 || (PERL_VERSION == 4 && PERL_SUBVERSION < 68 ))
+/* Fetches the SV that keeps the per-interpreter data. */
+#define dMY_CXT_SV \
+ SV *my_cxt_sv = perl_get_sv(MY_CXT_KEY, FALSE)
+#else /* >= perl5.004_68 */
+#define dMY_CXT_SV \
+ SV *my_cxt_sv = *hv_fetch(PL_modglobal, MY_CXT_KEY, \
+ sizeof(MY_CXT_KEY)-1, TRUE)
+#endif /* < perl5.004_68 */
+
+/* This declaration should be used within all functions that use the
+ * interpreter-local data. */
+#define dMY_CXT \
+ dMY_CXT_SV; \
+ my_cxt_t *my_cxtp = (my_cxt_t*)SvUV(my_cxt_sv)
+
+/* Creates and zeroes the per-interpreter data.
+ * (We allocate my_cxtp in a Perl SV so that it will be released when
+ * the interpreter goes away.) */
+#define MY_CXT_INIT \
+ dMY_CXT_SV; \
+ /* newSV() allocates one more than needed */ \
+ my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
+ Zero(my_cxtp, 1, my_cxt_t); \
+ sv_setuv(my_cxt_sv, (UV)my_cxtp)
+
+/* This macro must be used to access members of the my_cxt_t structure.
+ * e.g. MYCXT.some_data */
+#define MY_CXT (*my_cxtp)
+
+/* Judicious use of these macros can reduce the number of times dMY_CXT
+ * is used. Use is similar to pTHX, aTHX etc. */
+#define pMY_CXT my_cxt_t *my_cxtp
+#define pMY_CXT_ pMY_CXT,
+#define _pMY_CXT ,pMY_CXT
+#define aMY_CXT my_cxtp
+#define aMY_CXT_ aMY_CXT,
+#define _aMY_CXT ,aMY_CXT
+
+#else /* single interpreter */
+
+#ifndef NOOP
+# define NOOP (void)0
+#endif
+
+#ifdef HASATTRIBUTE
+# define PERL_UNUSED_DECL __attribute__((unused))
+#else
+# define PERL_UNUSED_DECL
+#endif
+
+#ifndef dNOOP
+# define dNOOP extern int Perl___notused PERL_UNUSED_DECL
+#endif
+
+#define START_MY_CXT static my_cxt_t my_cxt;
+#define dMY_CXT_SV dNOOP
+#define dMY_CXT dNOOP
+#define MY_CXT_INIT NOOP
+#define MY_CXT my_cxt
+
+#define pMY_CXT void
+#define pMY_CXT_
+#define _pMY_CXT
+#define aMY_CXT
+#define aMY_CXT_
+#define _aMY_CXT
+
+#endif
+
+#endif /* perl < 5.7.2 */
+
+/* End of file compat.h */
+
+EOM
+ close COMPAT ;
+
open(XS, ">$modfname.xs") || die "Can't create $ext$modpname/$modfname.xs: $!\n";
if ($opt_x) {
require Config; # Run-time directive
my @styles = $Config{gccversion} ? qw(C++ C9X GNU) : qw(C++ C9X);
$c = new C::Scan 'filename' => $filename, 'filename_filter' => $filter,
'add_cppflags' => $addflags, 'c_styles' => \@styles;
- $c->set('includeDirs' => ["$Config::Config{archlib}/CORE"]);
+ $c->set('includeDirs' => ["$Config::Config{archlib}/CORE", $cwd]);
push @$fdecls_parsed, @{ $c->get('parsed_fdecls') };
push(@$fdecls, @{$c->get('fdecls')});
}
@fnames_no_prefix = @fnames;
@fnames_no_prefix
- = sort map { ++$prefix{$_} if s/^$opt_p(?!\d)//; $_ } @fnames_no_prefix;
+ = sort map { ++$prefix{$_} if s/^$opt_p(?!\d)//; $_ } @fnames_no_prefix
+ if defined $opt_p;
# Remove macros which expand to typedefs
print "Typedefs are @td.\n" if $opt_d;
my %td = map {($_, $_)} @td;
$" = "\n\t";
warn "Writing $ext$modpname/$modfname.pm\n";
-if ( $compat_version < 5.006 ) {
print PM <<"END";
package $module;
use $compat_version;
use strict;
END
-}
-else {
-print PM <<"END";
-package $module;
-
-use 5.006;
-use strict;
-use warnings;
-END
-}
+print PM "use warnings;\n" unless $compat_version < 5.006;
unless( $opt_X || $opt_c || $opt_A ){
# we'll have an AUTOLOAD(), and it will have $AUTOLOAD and
my ($email,$author);
eval {
- my $user;
- ($user,$author) = (getpwuid($>))[0,6];
- $author =~ s/,.*$//; # in case of sub fields
- my $domain = $Config{'mydomain'};
- $domain =~ s/^\.//;
- $email = "$user\@$domain";
+ my $username;
+ ($username,$author) = (getpwuid($>))[0,6];
+ if (defined $username && defined $author) {
+ $author =~ s/,.*$//; # in case of sub fields
+ my $domain = $Config{'mydomain'};
+ $domain =~ s/^\.//;
+ $email = "$username\@$domain";
+ }
};
$author ||= "A. U. Thor";
}
my $pod = <<"END" unless $opt_P;
-## Below is stub documentation for your module. You better edit it!
+## Below is stub documentation for your module. You'd better edit it!
#
#=head1 NAME
#
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
+#include "compat.h"
END
if( @path_h ){
print XS "\n";
}
+print XS <<"END" if $opt_g;
+
+/* Global Data */
+
+#define MY_CXT_KEY "${module}::_guts" XS_VERSION
+
+typedef struct {
+ /* Put Global Data in here */
+ int dummy; /* you can access this elsewhere as MY_CXT.dummy */
+} my_cxt_t;
+
+START_MY_CXT
+
+END
+
my %pointer_typedefs;
my %struct_typedefs;
return ($struct_typedefs{$otype} = $out);
}
-my $types = {};
-# Important. Passing an undef scalar doesn't cause the
-# autovivified hashref to appear back out in this scope.
+print_tievar_subs(\*XS, $_, $vdecl_hash{$_}) for @vdecls;
if( ! $opt_c ) {
- print XS constant_types(), "\n";
- foreach (C_constant ($module, undef, $opt_t, $types, undef, undef,
- @const_names)) {
- print XS $_, "\n";
- }
+ # We write the "sample" files used when this module is built by perl without
+ # ExtUtils::Constant.
+ # h2xs will later check that these are the same as those generated by the
+ # code embedded into Makefile.PL
+ warn "Writing $ext$modpname/fallback.c\n";
+ warn "Writing $ext$modpname/fallback.xs\n";
+ WriteConstants ( C_FILE => "fallback.c",
+ XS_FILE => "fallback.xs",
+ DEFAULT_TYPE => $opt_t,
+ NAME => $module,
+ NAMES => \@const_names,
+ );
+ print XS "#include \"$constsfname.c\"\n";
}
-print_tievar_subs(\*XS, $_, $vdecl_hash{$_}) for @vdecls;
my $prefix = defined $opt_p ? "PREFIX = $opt_p" : '';
END
+# If a constant() function was #included then output a corresponding
+# XS declaration:
+print XS "INCLUDE: $constsfname.xs\n" unless $opt_c;
+
+print XS <<"END" if $opt_g;
+
+BOOT:
+{
+ MY_CXT_INIT;
+ /* If any of the fields in the my_cxt_t struct need
+ to be initialised, do it here.
+ */
+}
+
+END
+
foreach (sort keys %const_xsub) {
print XS <<"END";
char *
END
}
-# If a constant() function was written then output a corresponding
-# XS declaration:
-# XXX IVs
-print XS XS_constant ($module, $types) unless $opt_c;
-
my %seen_decl;
my %typemap;
print "Type mutation via typedefs: $otype ==> $type\n" if $opt_d;
$entry = assign_typemap_entry($type);
}
+ # XXX good do better if our UV happens to be long long
+ return "T_NV" if $type =~ /^(unsigned\s+)?long\s+(long|double)\z/;
$entry ||= $typemap{$otype}
|| (td_is_struct($type) ? "T_OPAQUE_STRUCT" : "T_PTROBJ");
$typemap{$otype} = $entry;
$prereq_pm = '';
}
-print PL <<END;
+print PL <<"END";
+use $compat_version;
use ExtUtils::MakeMaker;
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
$Icomment 'INC' => '$I', # e.g., '${Ihelp}-I/usr/include/other'
END
- my $C = grep $_ ne "$modfname.c", (glob '*.c'), (glob '*.cc'), (glob '*.C');
+ if (!$opt_c) {
+ print PL <<"END";
+ # Without this the constants xs files are spotted, and cause rules to be
+ # added to delete the similarly names C files, which isn't what we want.
+ 'XS' => {'$modfname.xs' => '$modfname.c'},
+ realclean => {FILES => '$constsfname.c $constsfname.xs'},
+END
+ }
+
+ my $C = grep {$_ ne "$modfname.c" && $_ ne "fallback.c"}
+ (glob '*.c'), (glob '*.cc'), (glob '*.C');
my $Cpre = ($C ? '' : '# ');
my $Ccomment = ($C ? '' : <<EOC);
# Un-comment this if you add C files to link with later:
print PL <<END;
$Ccomment $Cpre\'OBJECT' => '\$(O_FILES)', # link all the C files too
END
-}
+} # ' # Grr
print PL ");\n";
+if (!$opt_c) {
+ my $generate_code =
+ WriteMakefileSnippet ( C_FILE => "$constsfname.c",
+ XS_FILE => "$constsfname.xs",
+ DEFAULT_TYPE => $opt_t,
+ NAME => $module,
+ NAMES => \@const_names,
+ );
+ print PL <<"END";
+if (eval {require ExtUtils::Constant; 1}) {
+ # If you edit these definitions to change the constants used by this module,
+ # you will need to use the generated $constsfname.c and $constsfname.xs
+ # files to replace their "fallback" counterparts before distributing your
+ # changes.
+$generate_code
+}
+else {
+ use File::Copy;
+ copy ('fallback.c', '$constsfname.c')
+ or die "Can't copy fallback.c to $constsfname.c: \$!";
+ copy ('fallback.xs', '$constsfname.xs')
+ or die "Can't copy fallback.xs to $constsfname.xs: \$!";
+}
+END
+
+ eval $generate_code;
+ if ($@) {
+ warn <<"EOM";
+Attempting to test constant code in $ext$modpname/Makefile.PL:
+$generate_code
+__END__
+gave unexpected error $@
+Please report the circumstances of this bug in h2xs version $H2XS_VERSION
+using the perlbug script.
+EOM
+ } else {
+ my $fail;
+
+ foreach ('c', 'xs') {
+ if (compare("fallback.$_", "$constsfname.$_")) {
+ warn << "EOM";
+Files "$ext$modpname/fallback.$_" and "$ext$modpname/$constsfname.$_" differ.
+EOM
+ $fail++;
+ }
+ }
+ if ($fail) {
+ warn fill ('','', <<"EOM") . "\n";
+It appears that the code in $ext$modpname/Makefile.PL does not autogenerate
+the files $ext$modpname/$constsfname.c and $ext$modpname/$constsfname.xs
+correctly.
+
+Please report the circumstances of this bug in h2xs version $H2XS_VERSION
+using the perlbug script.
+EOM
+ } else {
+ unlink "$constsfname.c", "$constsfname.xs";
+ }
+ }
+}
close(PL) || die "Can't close $ext$modpname/Makefile.PL: $!\n";
# Create a simple README since this is a CPAN requirement
$_ = 'Makefile.PL' if $_ eq 'makefile.pl';
}
}
+if (!$opt_c) {
+ @files = grep {$_ ne "$constsfname.c" and $_ ne "$constsfname.xs"} @files;
+}
print MANI join("\n",@files), "\n";
close MANI;
!NO!SUBS!
projects / p5sagit/p5-mst-13.2.git / blobdiff