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#!/usr/bin/env perl
#
# InspIRCd -- Internet Relay Chat Daemon
#
# Copyright (C) 2014-2015 Attila Molnar <attilamolnar@hush.com>
# Copyright (C) 2013, 2015-2019, 2021 Sadie Powell <sadie@witchery.services>
# Copyright (C) 2012 Robby <robby@chatbelgie.be>
# Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
#
# This file is part of InspIRCd. InspIRCd is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
use strict;
use warnings FATAL => qw(all);
use File::Basename qw(basename dirname);
use FindBin qw($RealDir);
use lib dirname $RealDir;
use make::common;
use constant {
BUILDPATH => $ENV{BUILDPATH},
SOURCEPATH => $ENV{SOURCEPATH}
};
sub find_output;
sub gendep($);
sub dep_cpp($$$);
sub dep_so($);
sub dep_dir($$);
sub run();
my %f2dep;
run;
exit 0;
sub run() {
create_directory(BUILDPATH, 0770) or die "Could not create build directory: $!";
chdir BUILDPATH or die "Could not open build directory: $!";
unlink 'include';
symlink "${\SOURCEPATH}/include", 'include';
mkdir $_ for qw/bin modules obj/;
open MAKE, '>real.mk' or die "Could not write real.mk: $!";
chdir "${\SOURCEPATH}/src";
run_dynamic();
close MAKE;
}
sub run_dynamic() {
print MAKE <<END;
# DO NOT EDIT THIS FILE
# It is autogenerated by make/calcdep.pl, and will be overwritten
# every time you rerun make in the main directory
VPATH = \$(SOURCEPATH)/src
bad-target:
\@echo "This Makefile must be run by a sub-make from the source"
\@echo "in order to set the correct environment variables"
\@exit 1
all: inspircd modules
END
my(@core_deps, @modlist);
for my $file (<*.cpp>, <socketengines/*.cpp>, "threadengines/threadengine_pthread.cpp") {
my $out = find_output $file;
dep_cpp $file, $out, 'gen-o';
next if $file =~ m#^socketengines/# && $file ne "socketengines/socketengine_$ENV{SOCKETENGINE}.cpp";
# Having a module in the src directory is a bad idea because it will be linked to the core binary
if ($file =~ /^(m|core)_.*\.cpp/) {
my $correctsubdir = ($file =~ /^m_/ ? "modules" : "coremods");
print "Error: module $file is in the src directory, put it in src/$correctsubdir instead!\n";
exit 1;
}
push @core_deps, $out;
}
for my $directory (qw(coremods modules)) {
opendir(my $moddir, $directory);
for my $file (sort readdir $moddir) {
next if $file =~ /^\./;
if ($directory eq 'modules' && -e "modules/extra/$file" && !-l "modules/$file") {
# Incorrect symlink?
print "Replacing symlink for $file found in modules/extra\n";
rename "modules/$file", "modules/$file~";
symlink "extra/$file", "modules/$file";
}
if ($file =~ /^(?:core|m)_/ && -d "$directory/$file" && dep_dir "$directory/$file", "modules/$file") {
mkdir "${\BUILDPATH}/obj/$file";
push @modlist, "modules/$file.so";
}
if ($file =~ /^.*\.cpp$/) {
my $out = dep_so "$directory/$file";
push @modlist, $out;
}
}
}
my $core_mk = join ' ', @core_deps;
my $mods = join ' ', @modlist;
print MAKE <<END;
bin/inspircd: $core_mk
@\$(SOURCEPATH)/make/unit-cc.pl core-ld \$\@ \$^ \$>
inspircd: bin/inspircd
modules: $mods
.PHONY: all bad-target inspircd modules
END
}
sub find_output {
my $file = shift;
my($path,$base) = $file =~ m#^((?:.*/)?)([^/]+)\.cpp# or die "Bad file $file";
if ($path eq 'modules/' || $path eq 'coremods/') {
return "modules/$base.so";
} elsif ($path eq '' || $path eq 'modes/' || $path =~ /^[a-z]+engines\/$/) {
return "obj/$base.o";
} elsif ($path =~ m#modules/(m_.*)/# || $path =~ m#coremods/(core_.*)/#) {
return "obj/$1/$base.o";
} else {
die "Can't determine output for $file";
}
}
sub gendep($) {
my $f = shift;
my $basedir = $f =~ m#(.*)/# ? $1 : '.';
return $f2dep{$f} if exists $f2dep{$f};
$f2dep{$f} = '';
my %dep;
my $link = readlink $f;
if (defined $link) {
$link = "$basedir/$link" unless $link =~ m#^/#;
$dep{$link}++;
}
open my $in, '<', $f or die "Could not read $f";
while (<$in>) {
if (/^\s*#\s*include\s*"([^"]+)"/) {
my $inc = $1;
next if $inc eq 'config.h' && $f eq '../include/inspircd.h';
my $found = 0;
for my $loc ("$basedir/$inc", "../include/$inc") {
next unless -e $loc;
$found++;
$dep{$_}++ for split / /, gendep $loc;
$loc =~ s#^\.\./##;
$dep{$loc}++;
}
if ($found == 0 && $inc ne 'inspircd_win32wrapper.h') {
print STDERR "WARNING: could not find header $inc for $f\n";
} elsif ($found > 1 && $basedir ne '../include') {
print STDERR "WARNING: ambiguous include $inc in $f\n";
}
}
}
close $in;
$f2dep{$f} = join ' ', sort keys %dep;
$f2dep{$f};
}
sub dep_cpp($$$) {
my($file, $out, $type) = @_;
gendep $file;
print MAKE "$out: $file $f2dep{$file}\n";
print MAKE "\t@\$(SOURCEPATH)/make/unit-cc.pl $type \$\@ \$(SOURCEPATH)/src/$file \$>\n";
}
sub dep_so($) {
my($file) = @_;
my $out = find_output $file;
my $name = basename $out, '.so';
print MAKE ".PHONY: $name\n";
print MAKE "$name: $out\n";
dep_cpp $file, $out, 'gen-so';
return $out;
}
sub dep_dir($$) {
my($dir, $outdir) = @_;
my @ofiles;
opendir DIR, $dir;
for my $file (sort readdir DIR) {
next unless $file =~ /(.*)\.cpp$/;
my $ofile = find_output "$dir/$file";
dep_cpp "$dir/$file", $ofile, 'gen-o';
push @ofiles, $ofile;
}
closedir DIR;
if (@ofiles) {
my $ofiles = join ' ', @ofiles;
my $name = basename $outdir;
print MAKE ".PHONY: $name\n";
print MAKE "$name: $outdir.so\n";
print MAKE "$outdir.so: $ofiles\n";
print MAKE "\t@\$(SOURCEPATH)/make/unit-cc.pl link-dir \$\@ ${\SOURCEPATH}/src/$dir \$^ \$>\n";
return 1;
} else {
return 0;
}
}
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