# Description: The Linux kernel and modules
# URL:         https://kernel.org
# Maintainer:  KRAK3N Team, extra ports at krak3n dot my
# Depends on:  elfutils bison flex perl mkinitrd

name=linux
version=6.12.49
release=1
source=(https://cdn.kernel.org/pub/${name}/kernel/v6.x/${name}-${version}.tar.xz
	dotconfig)

build() {
	cd linux-${version}
	
	cp $SRC/dotconfig .config
	
	sed '/^CONFIG_LOCALVERSION=/d' -i .config
	echo 'CONFIG_LOCALVERSION="-KRAK3N"' >> .config
	sed '/^CONFIG_IKHEADERS=/d' -i .config
	echo '# CONFIG_IKHEADERS is not set' >> .config
	sed '/^# CONFIG_MODULE_COMPRESS_XZ/d' -i .config
	echo 'CiONFIG_MODULE_COMPRESS_XZ=y' >> .config
	sed '/^# CONFIG_UEVENT_HELPER/d' -i .config
	echo 'CONFIG_UEVENT_HELPER=y' >> .config
	echo 'CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"' >> .config
	
	make olddefconfig
	
	kernver=${version}$(grep CONFIG_LOCALVERSION= .config | cut -d '"' -f2)
	
	#make menuconfig
	
	make bzImage modules
	make INSTALL_MOD_PATH=$PKG INSTALL_MOD_STRIP=1 modules_install
	
	mkdir -p $PKG/boot
	
	cp arch/x86/boot/bzImage $PKG/boot/vmlinuz-linux

	touch $PKG/lib/modules/$kernver/current
	
	make clean
	make prepare
	
	rm -rf $PKG/lib/firmware
	
	for file in $(ls arch); do
		case $file in
			x86|Kconfig) continue ;;
			*) rm -fr arch/$file ;;
		esac
	done
	
	# strip down sources
	# don't package the kernel in the sources directory
	find . -name "*Image" -exec rm "{}" \;
	find . -name "*.cmd" -exec rm -f "{}" \; 
	rm -f .*.d
	
	rm -fr firmware ipc .config.old .version .cocciconfig \
		.get_maintainer.ignore .gitattributes .gitignore .mailmap \
		COPYING CREDITS MAINTAINERS README Documentation
	find . -name ".gitignore" -exec rm "{}" \;
	for dir in block certs crypto drivers fs init kernel lib mm net samples security sound usr virt; do
		find $dir -type f \( -name "*.c" -o -name "*.h" \) -exec rm "{}" \;
	done
	for i in $(ls tools); do
		[ "$i" = "objtool" ] || rm -fr tools/$i
	done
	for i in $(ls tools/objtool); do
		[ "$i" = "objtool" ] || rm -fr tools/objtool/$i
	done
	
	rm $PKG/lib/modules/$kernver/build \
	   $PKG/lib/modules/$kernver/source || true
	mv $SRC/linux-${version%.0} $PKG/lib/modules/$kernver/build
	ln -sv build $PKG/lib/modules/$kernver/source
	
	# remove now broken symlinks
	find -L $PKG/lib/modules/$kernver/build -type l -exec rm -f "{}" \;
}