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|
#!/bin/bash
source /tmp/chroot-functions.sh
install -d /tmp/kerncache
distkmerge_get_image_path() {
case ${clst_basearch} in
amd64|x86)
echo arch/x86/boot/bzImage
;;
arm64)
echo arch/arm64/boot/Image.gz
;;
arm)
echo arch/arm/boot/zImage
;;
hppa|ppc|ppc64)
echo ./vmlinux
;;
riscv)
echo arch/riscv/boot/Image.gz
;;
*)
die "unsupported ARCH=${clst_basearch}"
;;
esac
}
genkernel_compile() {
# default genkernel args
GK_ARGS=(
"${kernel_gk_kernargs[@]}"
--cachedir=/tmp/kerncache/${kname}-genkernel_cache-${clst_version_stamp}
--no-mountboot
--kerneldir=/usr/src/linux
--modulespackage=/tmp/kerncache/${kname}-modules-${clst_version_stamp}.tar.bz2
--minkernpackage=/tmp/kerncache/${kname}-kernel-initrd-${clst_version_stamp}.tar.bz2 all
)
# extra genkernel options that we have to test for
if [[ -n ${clst_gk_mainargs} ]]; then
GK_ARGS+=(${clst_gk_mainargs})
fi
if [[ -n ${clst_KERNCACHE} ]]; then
GK_ARGS+=(--kerncache=/tmp/kerncache/${kname}-kerncache-${clst_version_stamp}.tar.bz2)
fi
if [[ -e /var/tmp/${kname}.config ]]; then
GK_ARGS+=(--kernel-config=/var/tmp/${kname}.config)
fi
if [[ -d /tmp/initramfs_overlay/${initramfs_overlay} ]]; then
GK_ARGS+=(--initramfs-overlay=/tmp/initramfs_overlay/${initramfs_overlay})
fi
if [[ -n ${clst_CCACHE} ]]; then
GK_ARGS+=(--kernel-cc=/usr/lib/ccache/bin/gcc --utils-cc=/usr/lib/ccache/bin/gcc)
fi
if [[ -n ${clst_linuxrc} ]]; then
GK_ARGS+=(--linuxrc=/tmp/linuxrc)
fi
if [[ -n ${clst_busybox_config} ]]; then
GK_ARGS+=(--busybox-config=/tmp/busy-config)
fi
if [[ ${clst_target} == netboot ]]; then
GK_ARGS+=(--netboot)
if [[ -n ${clst_merge_path} ]]; then
GK_ARGS+=(--initramfs-overlay="${clst_merge_path}")
fi
fi
if [[ -n ${clst_VERBOSE} ]]; then
GK_ARGS+=(--loglevel=2)
fi
if [[ -n ${clst_VERBOSE} ]]; then
gk_callback_opts=(-vN)
else
gk_callback_opts=(-qN)
fi
if [[ -n ${clst_KERNCACHE} ]]; then
gk_callback_opts+=(-kb)
fi
if [[ -n ${clst_FETCH} ]]; then
gk_callback_opts+=(-f)
fi
if [[ -n ${kernel_merge} ]]; then
gk_callback=${gk_callback_opts[@]}
genkernel --callback="emerge ${gk_callback} ${kernel_merge}" \
"${GK_ARGS[@]}" || exit 1
else
genkernel "${GK_ARGS[@]}" || exit 1
fi
}
[ -n "${clst_ENVSCRIPT}" ] && source /tmp/envscript
# Set the timezone for the kernel build
rm /etc/localtime
cp -f /usr/share/zoneinfo/UTC /etc/localtime
eval "initramfs_overlay=\$clst_boot_kernel_${kname}_initramfs_overlay"
eval "kernel_merge=\$clst_boot_kernel_${kname}_packages"
eval "kernel_use=\$clst_boot_kernel_${kname}_use"
eval eval kernel_gk_kernargs=( \$clst_boot_kernel_${kname}_gk_kernargs )
eval eval kernel_dracut_kernargs=( \$clst_boot_kernel_${kname}_dracut_args )
eval "ksource=\$clst_boot_kernel_${kname}_sources"
eval "distkernel=\$clst_boot_kernel_${kname}_distkernel"
if [[ ${distkernel} = "yes" ]] ; then
[[ -z ${ksource} ]] && ksource="sys-kernel/gentoo-kernel"
else
[[ -z ${ksource} ]] && ksource="sys-kernel/gentoo-sources"
fi
kernel_version=$(portageq best_visible / "${ksource}")
if [[ -n ${clst_KERNCACHE} ]]; then
mkdir -p "/tmp/kerncache/${kname}"
pushd "/tmp/kerncache/${kname}" >/dev/null
echo "${kernel_use}" > /tmp/USE
echo "${kernel_version}" > /tmp/VERSION
echo "${clst_kextraversion}" > /tmp/EXTRAVERSION
if cmp -s {/tmp/,}USE && \
cmp -s {/tmp/,}VERSION && \
cmp -s {/tmp/,}EXTRAVERSION && \
cmp -s /var/tmp/${kname}.config CONFIG; then
cached_kernel_found="true"
fi
rm -f /tmp/{USE,VERSION,EXTRAVERSION}
popd >/dev/null
fi
if [[ ! ${cached_kernel_found} ]]; then
if [[ ${distkernel} = "yes" ]] ; then
USE="-initramfs" run_merge --update "${ksource}"
else
USE="symlink" run_merge --update "${ksource}"
fi
fi
if [[ -n ${clst_KERNCACHE} ]]; then
SOURCESDIR="/tmp/kerncache/${kname}/sources"
if [[ ! ${cached_kernel_found} ]]; then
echo "Moving kernel sources to ${SOURCESDIR} ..."
rm -rf "${SOURCESDIR}"
mv $(readlink -f /usr/src/linux) "${SOURCESDIR}"
fi
ln -snf "${SOURCESDIR}" /usr/src/linux
fi
if [[ ${distkernel} = "yes" ]] ; then
# Build external kernel modules
if [[ -n ${kernel_merge} ]]; then
run_merge ${kernel_merge}
fi
# Kernel already built, let's run dracut to make initramfs
distkernel_source_path=$(equery -Cq f ${ksource} | grep "/usr/src/linux-" -m1)
distkernel_image_path=$(distkmerge_get_image_path)
distkernel_version=${distkernel_source_path##"/usr/src/linux-"}
DRACUT_ARGS=(
"${kernel_dracut_kernargs[@]}"
--force
--kernel-image="${distkernel_source_path}/${distkernel_image_path}"
--kver="${distkernel_version}"
)
dracut "${DRACUT_ARGS[@]}" || exit 1
# Create minkernel package to mimic genkernel's behaviour
cd /boot
tar jcvf /tmp/kerncache/${kname}-kernel-initrd-${clst_version_stamp}.tar.bz2 System.map* config* initramfs* vmlinuz*
cd /
tar jcvf /tmp/kerncache/${kname}-modules-${clst_version_stamp}.tar.bz2 lib/modules
else
if [[ -n ${clst_kextraversion} ]]; then
echo "Setting EXTRAVERSION to ${clst_kextraversion}"
if [[ -e /usr/src/linux/Makefile.bak ]]; then
cp /usr/src/linux/Makefile{.bak,}
else
cp /usr/src/linux/Makefile{,.bak}
fi
sed -i -e "s:EXTRAVERSION \(=.*\):EXTRAVERSION \1-${clst_kextraversion}:" \
/usr/src/linux/Makefile
fi
genkernel_compile
fi
# Write out CONFIG, USE, VERSION, and EXTRAVERSION files
if [[ -n ${clst_KERNCACHE} && ! ${cached_kernel_found} ]]; then
pushd "/tmp/kerncache/${kname}" >/dev/null
cp /var/tmp/${kname}.config CONFIG
echo "${kernel_use}" > USE
echo "${kernel_version}" > VERSION
echo "${clst_kextraversion}" > EXTRAVERSION
popd >/dev/null
fi
if [[ ! ${cached_kernel_found} ]]; then
run_merge --deselect "${ksource}"
# This was breaking multi-kernel iso builds, probably not needed
# rm /usr/src/linux
fi
|
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