mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
502 lines
12 KiB
502 lines
12 KiB
# $Id: Embed.pm,v 1.2501 $
|
|
require 5.002;
|
|
|
|
package ExtUtils::Embed;
|
|
require Exporter;
|
|
require FileHandle;
|
|
use Config;
|
|
use Getopt::Std;
|
|
|
|
#Only when we need them
|
|
#require ExtUtils::MakeMaker;
|
|
#require ExtUtils::Liblist;
|
|
|
|
use vars qw(@ISA @EXPORT $VERSION
|
|
@Extensions $Verbose $lib_ext
|
|
$opt_o $opt_s
|
|
);
|
|
use strict;
|
|
|
|
$VERSION = sprintf("%d.%02d", q$Revision: 1.2505 $ =~ /(\d+)\.(\d+)/);
|
|
|
|
@ISA = qw(Exporter);
|
|
@EXPORT = qw(&xsinit &ldopts
|
|
&ccopts &ccflags &ccdlflags &perl_inc
|
|
&xsi_header &xsi_protos &xsi_body);
|
|
|
|
#let's have Miniperl borrow from us instead
|
|
#require ExtUtils::Miniperl;
|
|
#*canon = \&ExtUtils::Miniperl::canon;
|
|
|
|
$Verbose = 0;
|
|
$lib_ext = $Config{lib_ext} || '.a';
|
|
|
|
sub is_cmd { $0 eq '-e' }
|
|
|
|
sub my_return {
|
|
my $val = shift;
|
|
if(is_cmd) {
|
|
print $val;
|
|
}
|
|
else {
|
|
return $val;
|
|
}
|
|
}
|
|
|
|
sub is_perl_object {
|
|
$Config{ccflags} =~ /-DPERL_OBJECT/;
|
|
}
|
|
|
|
sub xsinit {
|
|
my($file, $std, $mods) = @_;
|
|
my($fh,@mods,%seen);
|
|
$file ||= "perlxsi.c";
|
|
my $xsinit_proto = is_perl_object() ? "CPERLarg" : "void";
|
|
|
|
if (@_) {
|
|
@mods = @$mods if $mods;
|
|
}
|
|
else {
|
|
getopts('o:s:');
|
|
$file = $opt_o if defined $opt_o;
|
|
$std = $opt_s if defined $opt_s;
|
|
@mods = @ARGV;
|
|
}
|
|
$std = 1 unless scalar @mods;
|
|
|
|
if ($file eq "STDOUT") {
|
|
$fh = \*STDOUT;
|
|
}
|
|
else {
|
|
$fh = new FileHandle "> $file";
|
|
}
|
|
|
|
push(@mods, static_ext()) if defined $std;
|
|
@mods = grep(!$seen{$_}++, @mods);
|
|
|
|
print $fh &xsi_header();
|
|
print $fh "EXTERN_C void xs_init _(($xsinit_proto));\n\n";
|
|
print $fh &xsi_protos(@mods);
|
|
|
|
print $fh "\nEXTERN_C void\nxs_init($xsinit_proto)\n{\n";
|
|
print $fh &xsi_body(@mods);
|
|
print $fh "}\n";
|
|
|
|
}
|
|
|
|
sub xsi_header {
|
|
return <<EOF;
|
|
#if defined(__cplusplus) && !defined(PERL_OBJECT)
|
|
#define is_cplusplus
|
|
#endif
|
|
|
|
#ifdef is_cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <EXTERN.h>
|
|
#include <perl.h>
|
|
#ifdef PERL_OBJECT
|
|
#define NO_XSLOCKS
|
|
#include <XSUB.h>
|
|
#include "win32iop.h"
|
|
#include <fcntl.h>
|
|
#include <perlhost.h>
|
|
#endif
|
|
#ifdef is_cplusplus
|
|
}
|
|
# ifndef EXTERN_C
|
|
# define EXTERN_C extern "C"
|
|
# endif
|
|
#else
|
|
# ifndef EXTERN_C
|
|
# define EXTERN_C extern
|
|
# endif
|
|
#endif
|
|
|
|
EOF
|
|
}
|
|
|
|
sub xsi_protos {
|
|
my(@exts) = @_;
|
|
my(@retval,%seen);
|
|
my $boot_proto = is_perl_object() ?
|
|
"CV* cv _CPERLarg" : "CV* cv";
|
|
foreach $_ (@exts){
|
|
my($pname) = canon('/', $_);
|
|
my($mname, $cname);
|
|
($mname = $pname) =~ s!/!::!g;
|
|
($cname = $pname) =~ s!/!__!g;
|
|
my($ccode) = "EXTERN_C void boot_${cname} _(($boot_proto));\n";
|
|
next if $seen{$ccode}++;
|
|
push(@retval, $ccode);
|
|
}
|
|
return join '', @retval;
|
|
}
|
|
|
|
sub xsi_body {
|
|
my(@exts) = @_;
|
|
my($pname,@retval,%seen);
|
|
my($dl) = canon('/','DynaLoader');
|
|
push(@retval, "\tchar *file = __FILE__;\n");
|
|
push(@retval, "\tdXSUB_SYS;\n") if $] > 5.002;
|
|
push(@retval, "\n");
|
|
|
|
foreach $_ (@exts){
|
|
my($pname) = canon('/', $_);
|
|
my($mname, $cname, $ccode);
|
|
($mname = $pname) =~ s!/!::!g;
|
|
($cname = $pname) =~ s!/!__!g;
|
|
if ($pname eq $dl){
|
|
# Must NOT install 'DynaLoader::boot_DynaLoader' as 'bootstrap'!
|
|
# boot_DynaLoader is called directly in DynaLoader.pm
|
|
$ccode = "\t/* DynaLoader is a special case */\n\tnewXS(\"${mname}::boot_${cname}\", boot_${cname}, file);\n";
|
|
push(@retval, $ccode) unless $seen{$ccode}++;
|
|
} else {
|
|
$ccode = "\tnewXS(\"${mname}::bootstrap\", boot_${cname}, file);\n";
|
|
push(@retval, $ccode) unless $seen{$ccode}++;
|
|
}
|
|
}
|
|
return join '', @retval;
|
|
}
|
|
|
|
sub static_ext {
|
|
unless (scalar @Extensions) {
|
|
@Extensions = sort split /\s+/, $Config{static_ext};
|
|
unshift @Extensions, qw(DynaLoader);
|
|
}
|
|
@Extensions;
|
|
}
|
|
|
|
sub ldopts {
|
|
require ExtUtils::MakeMaker;
|
|
require ExtUtils::Liblist;
|
|
my($std,$mods,$link_args,$path) = @_;
|
|
my(@mods,@link_args,@argv);
|
|
my($dllib,$config_libs,@potential_libs,@path);
|
|
local($") = ' ' unless $" eq ' ';
|
|
my $MM = bless {} => 'MY';
|
|
if (scalar @_) {
|
|
@link_args = @$link_args if $link_args;
|
|
@mods = @$mods if $mods;
|
|
}
|
|
else {
|
|
@argv = @ARGV;
|
|
#hmm
|
|
while($_ = shift @argv) {
|
|
/^-std$/ && do { $std = 1; next; };
|
|
/^--$/ && do { @link_args = @argv; last; };
|
|
/^-I(.*)/ && do { $path = $1 || shift @argv; next; };
|
|
push(@mods, $_);
|
|
}
|
|
}
|
|
$std = 1 unless scalar @link_args;
|
|
@path = $path ? split(/:/, $path) : @INC;
|
|
|
|
push(@potential_libs, @link_args) if scalar @link_args;
|
|
push(@potential_libs, $Config{libs}) if defined $std;
|
|
|
|
push(@mods, static_ext()) if $std;
|
|
|
|
my($mod,@ns,$root,$sub,$extra,$archive,@archives);
|
|
print STDERR "Searching (@path) for archives\n" if $Verbose;
|
|
foreach $mod (@mods) {
|
|
@ns = split(/::|\/|\\/, $mod);
|
|
$sub = $ns[-1];
|
|
$root = $MM->catdir(@ns);
|
|
|
|
print STDERR "searching for '$sub${lib_ext}'\n" if $Verbose;
|
|
foreach (@path) {
|
|
next unless -e ($archive = $MM->catdir($_,"auto",$root,"$sub$lib_ext"));
|
|
push @archives, $archive;
|
|
if(-e ($extra = $MM->catdir($_,"auto",$root,"extralibs.ld"))) {
|
|
local(*FH);
|
|
if(open(FH, $extra)) {
|
|
my($libs) = <FH>; chomp $libs;
|
|
push @potential_libs, split /\s+/, $libs;
|
|
}
|
|
else {
|
|
warn "Couldn't open '$extra'";
|
|
}
|
|
}
|
|
last;
|
|
}
|
|
}
|
|
#print STDERR "\@potential_libs = @potential_libs\n";
|
|
|
|
my $libperl = (grep(/^-l\w*perl\w*$/, @link_args))[0] || "-lperl";
|
|
|
|
my($extralibs, $bsloadlibs, $ldloadlibs, $ld_run_path) =
|
|
$MM->ext(join ' ',
|
|
$MM->catdir("-L$Config{archlibexp}", "CORE"), " $libperl",
|
|
@potential_libs);
|
|
|
|
my $ld_or_bs = $bsloadlibs || $ldloadlibs;
|
|
print STDERR "bs: $bsloadlibs ** ld: $ldloadlibs" if $Verbose;
|
|
my $linkage = "$Config{ccdlflags} $Config{ldflags} @archives $ld_or_bs";
|
|
print STDERR "ldopts: '$linkage'\n" if $Verbose;
|
|
|
|
return $linkage if scalar @_;
|
|
my_return("$linkage\n");
|
|
}
|
|
|
|
sub ccflags {
|
|
my_return(" $Config{ccflags} ");
|
|
}
|
|
|
|
sub ccdlflags {
|
|
my_return(" $Config{ccdlflags} ");
|
|
}
|
|
|
|
sub perl_inc {
|
|
my_return(" -I$Config{archlibexp}/CORE ");
|
|
}
|
|
|
|
sub ccopts {
|
|
ccflags . perl_inc;
|
|
}
|
|
|
|
sub canon {
|
|
my($as, @ext) = @_;
|
|
foreach(@ext) {
|
|
# might be X::Y or lib/auto/X/Y/Y.a
|
|
next if s!::!/!g;
|
|
s:^(lib|ext)/(auto/)?::;
|
|
s:/\w+\.\w+$::;
|
|
}
|
|
grep(s:/:$as:, @ext) if ($as ne '/');
|
|
@ext;
|
|
}
|
|
|
|
__END__
|
|
|
|
=head1 NAME
|
|
|
|
ExtUtils::Embed - Utilities for embedding Perl in C/C++ applications
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
|
|
perl -MExtUtils::Embed -e xsinit
|
|
perl -MExtUtils::Embed -e ldopts
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
ExtUtils::Embed provides utility functions for embedding a Perl interpreter
|
|
and extensions in your C/C++ applications.
|
|
Typically, an application B<Makefile> will invoke ExtUtils::Embed
|
|
functions while building your application.
|
|
|
|
=head1 @EXPORT
|
|
|
|
ExtUtils::Embed exports the following functions:
|
|
|
|
xsinit(), ldopts(), ccopts(), perl_inc(), ccflags(),
|
|
ccdlflags(), xsi_header(), xsi_protos(), xsi_body()
|
|
|
|
=head1 FUNCTIONS
|
|
|
|
=over
|
|
|
|
=item xsinit()
|
|
|
|
Generate C/C++ code for the XS initializer function.
|
|
|
|
When invoked as C<`perl -MExtUtils::Embed -e xsinit --`>
|
|
the following options are recognized:
|
|
|
|
B<-o> E<lt>output filenameE<gt> (Defaults to B<perlxsi.c>)
|
|
|
|
B<-o STDOUT> will print to STDOUT.
|
|
|
|
B<-std> (Write code for extensions that are linked with the current Perl.)
|
|
|
|
Any additional arguments are expected to be names of modules
|
|
to generate code for.
|
|
|
|
When invoked with parameters the following are accepted and optional:
|
|
|
|
C<xsinit($filename,$std,[@modules])>
|
|
|
|
Where,
|
|
|
|
B<$filename> is equivalent to the B<-o> option.
|
|
|
|
B<$std> is boolean, equivalent to the B<-std> option.
|
|
|
|
B<[@modules]> is an array ref, same as additional arguments mentioned above.
|
|
|
|
=item Examples
|
|
|
|
|
|
perl -MExtUtils::Embed -e xsinit -- -o xsinit.c Socket
|
|
|
|
|
|
This will generate code with an B<xs_init> function that glues the perl B<Socket::bootstrap> function
|
|
to the C B<boot_Socket> function and writes it to a file named "xsinit.c".
|
|
|
|
Note that B<DynaLoader> is a special case where it must call B<boot_DynaLoader> directly.
|
|
|
|
perl -MExtUtils::Embed -e xsinit
|
|
|
|
|
|
This will generate code for linking with B<DynaLoader> and
|
|
each static extension found in B<$Config{static_ext}>.
|
|
The code is written to the default file name B<perlxsi.c>.
|
|
|
|
|
|
perl -MExtUtils::Embed -e xsinit -- -o xsinit.c -std DBI DBD::Oracle
|
|
|
|
|
|
Here, code is written for all the currently linked extensions along with code
|
|
for B<DBI> and B<DBD::Oracle>.
|
|
|
|
If you have a working B<DynaLoader> then there is rarely any need to statically link in any
|
|
other extensions.
|
|
|
|
=item ldopts()
|
|
|
|
Output arguments for linking the Perl library and extensions to your
|
|
application.
|
|
|
|
When invoked as C<`perl -MExtUtils::Embed -e ldopts --`>
|
|
the following options are recognized:
|
|
|
|
B<-std>
|
|
|
|
Output arguments for linking the Perl library and any extensions linked
|
|
with the current Perl.
|
|
|
|
B<-I> E<lt>path1:path2E<gt>
|
|
|
|
Search path for ModuleName.a archives.
|
|
Default path is B<@INC>.
|
|
Library archives are expected to be found as
|
|
B</some/path/auto/ModuleName/ModuleName.a>
|
|
For example, when looking for B<Socket.a> relative to a search path,
|
|
we should find B<auto/Socket/Socket.a>
|
|
|
|
When looking for B<DBD::Oracle> relative to a search path,
|
|
we should find B<auto/DBD/Oracle/Oracle.a>
|
|
|
|
Keep in mind, you can always supply B</my/own/path/ModuleName.a>
|
|
as an additional linker argument.
|
|
|
|
B<--> E<lt>list of linker argsE<gt>
|
|
|
|
Additional linker arguments to be considered.
|
|
|
|
Any additional arguments found before the B<--> token
|
|
are expected to be names of modules to generate code for.
|
|
|
|
When invoked with parameters the following are accepted and optional:
|
|
|
|
C<ldopts($std,[@modules],[@link_args],$path)>
|
|
|
|
Where,
|
|
|
|
B<$std> is boolean, equivalent to the B<-std> option.
|
|
|
|
B<[@modules]> is equivalent to additional arguments found before the B<--> token.
|
|
|
|
B<[@link_args]> is equivalent to arguments found after the B<--> token.
|
|
|
|
B<$path> is equivalent to the B<-I> option.
|
|
|
|
In addition, when ldopts is called with parameters, it will return the argument string
|
|
rather than print it to STDOUT.
|
|
|
|
=item Examples
|
|
|
|
|
|
perl -MExtUtils::Embed -e ldopts
|
|
|
|
|
|
This will print arguments for linking with B<libperl.a>, B<DynaLoader> and
|
|
extensions found in B<$Config{static_ext}>. This includes libraries
|
|
found in B<$Config{libs}> and the first ModuleName.a library
|
|
for each extension that is found by searching B<@INC> or the path
|
|
specified by the B<-I> option.
|
|
In addition, when ModuleName.a is found, additional linker arguments
|
|
are picked up from the B<extralibs.ld> file in the same directory.
|
|
|
|
|
|
perl -MExtUtils::Embed -e ldopts -- -std Socket
|
|
|
|
|
|
This will do the same as the above example, along with printing additional arguments for linking with the B<Socket> extension.
|
|
|
|
|
|
perl -MExtUtils::Embed -e ldopts -- DynaLoader
|
|
|
|
|
|
This will print arguments for linking with just the B<DynaLoader> extension
|
|
and B<libperl.a>.
|
|
|
|
|
|
perl -MExtUtils::Embed -e ldopts -- -std Msql -- -L/usr/msql/lib -lmsql
|
|
|
|
|
|
Any arguments after the second '--' token are additional linker
|
|
arguments that will be examined for potential conflict. If there is no
|
|
conflict, the additional arguments will be part of the output.
|
|
|
|
|
|
=item perl_inc()
|
|
|
|
For including perl header files this function simply prints:
|
|
|
|
-I$Config{archlibexp}/CORE
|
|
|
|
So, rather than having to say:
|
|
|
|
perl -MConfig -e 'print "-I$Config{archlibexp}/CORE"'
|
|
|
|
Just say:
|
|
|
|
perl -MExtUtils::Embed -e perl_inc
|
|
|
|
=item ccflags(), ccdlflags()
|
|
|
|
These functions simply print $Config{ccflags} and $Config{ccdlflags}
|
|
|
|
=item ccopts()
|
|
|
|
This function combines perl_inc(), ccflags() and ccdlflags() into one.
|
|
|
|
=item xsi_header()
|
|
|
|
This function simply returns a string defining the same B<EXTERN_C> macro as
|
|
B<perlmain.c> along with #including B<perl.h> and B<EXTERN.h>.
|
|
|
|
=item xsi_protos(@modules)
|
|
|
|
This function returns a string of B<boot_$ModuleName> prototypes for each @modules.
|
|
|
|
=item xsi_body(@modules)
|
|
|
|
This function returns a string of calls to B<newXS()> that glue the module B<bootstrap>
|
|
function to B<boot_ModuleName> for each @modules.
|
|
|
|
B<xsinit()> uses the xsi_* functions to generate most of it's code.
|
|
|
|
=back
|
|
|
|
=head1 EXAMPLES
|
|
|
|
For examples on how to use B<ExtUtils::Embed> for building C/C++ applications
|
|
with embedded perl, see the eg/ directory and L<perlembed>.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<perlembed>
|
|
|
|
=head1 AUTHOR
|
|
|
|
Doug MacEachern E<lt>F<[email protected]>E<gt>
|
|
|
|
Based on ideas from Tim Bunce E<lt>F<[email protected]>E<gt> and
|
|
B<minimod.pl> by Andreas Koenig E<lt>F<[email protected]>E<gt> and Tim Bunce.
|
|
|
|
=cut
|
|
|