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# Copyright 2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit kernel-build
MY_P=linux-${PV}
# https://git.archlinux.org/svntogit/packages.git/log/trunk/config?h=packages/linux
AMD64_CONFIG_VER=5.7.6-arch1
AMD64_CONFIG_HASH=39802f4425f0fc50dd8040ad30cfdd001bd2b40b
# https://git.archlinux32.org/packages/log/core/linux/config.i686
I686_CONFIG_VER=5.7.2-arch1
I686_CONFIG_HASH=4f18a8a48e28656a98803890a0f6567b93fd5a77
DESCRIPTION="Linux kernel built from vanilla upstream sources"
HOMEPAGE="https://www.kernel.org/"
SRC_URI+=" https://cdn.kernel.org/pub/linux/kernel/v$(ver_cut 1).x/${MY_P}.tar.xz
amd64? (
https://git.archlinux.org/svntogit/packages.git/plain/trunk/config?h=packages/linux&id=${AMD64_CONFIG_HASH}
-> linux-${AMD64_CONFIG_VER}.amd64.config
)
x86? (
https://git.archlinux32.org/packages/plain/core/linux/config.i686?id=${I686_CONFIG_HASH}
-> linux-${I686_CONFIG_VER}.i686.config
)"
S=${WORKDIR}/${MY_P}
LICENSE="GPL-2"
KEYWORDS="~amd64 ~arm ~arm64 ~x86"
IUSE="debug"
REQUIRED_USE="
arm? ( savedconfig )
arm64? ( savedconfig )"
RDEPEND="
!sys-kernel/vanilla-kernel-bin:${SLOT}"
BDEPEND="
debug? ( dev-util/dwarves )"
src_prepare() {
default
# prepare the default config
case ${ARCH} in
amd64)
cp "${DISTDIR}"/linux-${AMD64_CONFIG_VER}.amd64.config .config || die
;;
x86)
cp "${DISTDIR}"/linux-${I686_CONFIG_VER}.i686.config .config || die
;;
arm|arm64)
return
;;
*)
die "Unsupported arch ${ARCH}"
;;
esac
local config_tweaks=(
# shove arch under the carpet!
-e 's:^CONFIG_DEFAULT_HOSTNAME=:&"gentoo":'
# we do support x32
-e '/CONFIG_X86_X32/s:.*:CONFIG_X86_X32=y:'
# disable signatures
-e '/CONFIG_MODULE_SIG/d'
-e '/CONFIG_SECURITY_LOCKDOWN/d'
# disable compression to allow stripping
-e '/CONFIG_MODULE_COMPRESS/d'
# disable gcc plugins to unbreak distcc
-e '/CONFIG_GCC_PLUGIN_STRUCTLEAK/d'
)
use debug || config_tweaks+=(
-e '/CONFIG_DEBUG_INFO/d'
)
sed -i "${config_tweaks[@]}" .config || die
}
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