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# Maintainer: Natanael Copa <ncopa@alpinelinux.org>

_flavor=vserver
pkgname=linux-${_flavor}
pkgver=2.6.32.12

_kernver=2.6.32
pkgrel=1
pkgdesc="Linux kernel with vserver"
url="http://linux-vserver.org/"
depends="mkinitfs linux-firmware"
makedepends="perl installkernel"
options="!strip"
_config=${config:-kernelconfig.${CARCH:-x86}}
install=
source="ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_kernver.tar.bz2
	ftp://ftp.kernel.org/pub/linux/kernel/v2.6/patch-$pkgver.bz2
	http://vserver.13thfloor.at/Experimental/patch-2.6.32.12-vs2.3.0.36.29.4.diff
	kernelconfig.x86
	"
subpackages="$pkgname-dev"
license="GPL-2"

_abi_release=${pkgver}-${_flavor}

prepare() {
	cd "$srcdir"/linux-$_kernver
	if [ "$_kernver" != "$pkgver" ]; then
		bunzip2 -c < ../patch-$pkgver.bz2 | patch -p1 -N || return 1
	fi

	for i in ../*.diff ../*.patch; do
		[ -f $i ] || continue
		msg "Applying $i..."
		patch -p1 -N < $i || return 1
	done

	mkdir -p "$srcdir"/build
	cp "$srcdir"/$_config "$srcdir"/build/.config
	make -C "$srcdir"/linux-$_kernver O="$srcdir"/build HOSTCC="$CC" \
		silentoldconfig
}

# this is so we can do: 'abuild menuconfig' to reconfigure kernel
menuconfig() {
	cd "$srcdir"/build
	make menuconfig
	cp .config "$startdir"/$_config
}

build() {
	cd "$srcdir"/build
	make CC="${CC:-gcc}" || return 1
}

package() {
	cd "$srcdir"/build
	mkdir -p "$pkgdir"/boot "$pkgdir"/lib/modules
	make modules_install install \
		INSTALL_MOD_PATH="$pkgdir" \
		INSTALL_PATH="$pkgdir"/boot

	rm -f "$pkgdir"/lib/modules/${_abi_release}/build \
		"$pkgdir"/lib/modules/${_abi_release}/source 
	rm -rf "$pkgdir"/lib/firmware

	install -D include/config/kernel.release \
		"$pkgdir"/usr/share/kernel/$_flavor/kernel.release
}

dev() {
	# copy the only the parts that we really need for build 3rd party
	# kernel modules and install those as /usr/src/linux-headers,
	# simlar to what ubuntu does
	#
	# this way you dont need to install the 300-400 kernel sources to 
	# build a tiny kernel module
	#
	pkgdesc="Headers and script for third party modules for grsec kernel"
	local dir="$subpkgdir"/usr/src/linux-headers-${_abi_release}

	# first we import config, run prepare to set up for building 
	# external modules, and create the scripts
	mkdir -p "$dir"
	cp "$srcdir"/$_config "$dir"/.config
	make -j1 -C "$srcdir"/linux-$_kernver O="$dir" HOSTCC="$CC" \
		silentoldconfig prepare scripts

	# remove the stuff that poits to real sources. we want 3rd party
	# modules to believe this is the soruces
	rm "$dir"/Makefile "$dir"/source

	# copy the needed stuff from real sources
	#
	# this is taken from ubuntu kernel build script
	# http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-jaunty.git;a=blob;f=debian/rules.d/3-binary-indep.mk;hb=HEAD
	cd "$srcdir"/linux-$_kernver
	find . -path './include/*' -prune -o -path './scripts/*' -prune \
		-o -type f \( -name 'Makefile*' -o -name 'Kconfig*' \
		-o -name 'Kbuild*' -o -name '*.sh' -o -name '*.pl' \
		-o -name '*.lds' \) | cpio -pdm "$dir"
	cp -a drivers/media/dvb/dvb-core/*.h "$dir"/drivers/media/dvb/dvb-core
	cp -a drivers/media/video/*.h "$dir"/drivers/media/video
	cp -a drivers/media/dvb/frontends/*.h "$dir"/drivers/media/dvb/frontends
	cp -a scripts include "$dir"
	find $(find arch -name include -type d -print) -type f \
		| cpio -pdm "$dir"

	install -Dm644 "$srcdir"/build/Module.symvers \
		"$dir"/Module.symvers

	mkdir -p "$subpkgdir"/lib/modules/${_abi_release}
	ln -sf /usr/src/linux-headers-${_abi_release} \
		"$subpkgdir"/lib/modules/${_abi_release}/build
}

md5sums="260551284ac224c3a43c4adac7df4879  linux-2.6.32.tar.bz2
9d097d34648a1734b1a7f97c5d000f03  patch-2.6.32.12.bz2
cbf358edd0f416b035d13114fdc34ccb  patch-2.6.32.12-vs2.3.0.36.29.4.diff
42ce36a36e7c71ee54761e56d59d17ed  kernelconfig.x86"