# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

ETYPE="sources"
inherit kernel-2 eutils
detect_arch
detect_version
[ "${PR}" == "r0" ] && KV=${PV/_/-}-xen || KV=${PV/_/-}-xen-${PR}

DESCRIPTION="Full sources for a dom0/domU Linux kernel to run under Xen"
HOMEPAGE="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html"
XEN_VERSION="3.0.4_1"
MY_P="xen-${XEN_VERSION}-src"
SRC_URI="${KERNEL_URI} mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/patch-${PV}.bz2 http://bits.xensource.com/oss-xen/release/${XEN_VERSION/_/-}/src.tgz/xen-${XEN_VERSION}-src.tgz"

KEYWORDS="~x86 ~amd64"
#RDEPEND="~app-emulation/xen-${XEN_VERSION}"
S="${WORKDIR}"
RESTRICT="nostrip"
XEN_KV=${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}

src_unpack() {
	unpack ${A}

	# patch to the latest kernel first
	cd "${WORKDIR}"/linux-${XEN_KV}
	epatch "${WORKDIR}"/patch-${PV}

	cd "${WORKDIR}"/${MY_P}
	sed -e 's:relative_lndir \([^(].*\):cp -dpPR \1/* .:' \
		-i linux-2.6-xen-sparse/mkbuildtree || die

	# No need to run oldconfig
	sed -e 's:$(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_ARCH) oldconfig::' \
		-i buildconfigs/mk.linux-2.6-xen

	# Move the kernel sources to pristine-linux-${PV}
	mv "${WORKDIR}"/linux-${XEN_KV} pristine-linux-${PV} || die
	touch pristine-linux-${PV}/.valid-pristine || die

	# debugging
	#echo "make LINUX_SRC_PATH=${DISTDIR} XEN_ROOT=${WORKDIR}/${MY_P} 
	#	-f buildconfigs/mk.linux-2.6-xen 
	#	linux-${PV}-xen/include/linux/autoconf.h || die"

	sed -e "s/2.6.16.33/2.6.16.38/" -i buildconfigs/mk.linux-2.6-xen
	mv patches/linux-2.6.16.33 patches/linux-2.6.16.38 || die

	make LINUX_SRC_PATH=${DISTDIR} XEN_ROOT=${WORKDIR}/${MY_P} \
		-f buildconfigs/mk.linux-2.6-xen \
		linux-${PV}-xen/include/linux/autoconf.h || die
	mv linux-${KV} "${WORKDIR}"/linux-${KV} || die
	rm -rf "${WORKDIR}/${MY_P}" || die
}