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|
#!/bin/bash
set -e
NUM_CPUS=${NUM_CPUS:-"$(getconf _NPROCESSORS_ONLN)"}
TOP=${TOP:-$(dirname $(pwd))}
FIT_NAME="kernel kernel_dtb"
KDIR=${KDIR:-$(pwd)}
clean_build=0
#ARCH=arm64
git_describe=$(git describe --long)
KERNEL_VERSION="linux-mainline"
usage() {
echo -e "$0's help text"
echo -e " -a ARCH, specify the architecture to build, default: arm64"
echo -e " -c, cleanup output and staging dir before building, default: 0"
echo -e " -c CONFIG_URL, specify a url to a config file,"
echo -e " default: ${CONFIG_URL}"
echo -e " -k KERNEL_VERSION, kernel version that you want to build, default: linux-mainline"
echo -e " KERNEL_VERSION's to choose from:"
echo -e " linux-mainline,"
echo -e " linux-next,"
echo -e " linux-stable-4.14,"
echo -e " ..."
echo -e " -m MACHINE, add machine name"
echo -e " -h, prints out this help"
}
while getopts "a:cd:hk:m:" arg; do
case $arg in
a)
ARCH="$OPTARG"
;;
c)
clean_build=1
;;
d)
CONFIG_URL="$OPTARG"
;;
k)
KERNEL_VERSION="$OPTARG"
;;
m)
MACHINE="$OPTARG"
;;
h|*)
usage
exit 0
;;
esac
done
case ${MACHINE} in
am57xx-evm)
ARCH=arm
CONFIG_URL=${CONFIG_URL:-"http://snapshots.linaro.org/openembedded/lkft/morty/${MACHINE}/rpb/${KERNEL_VERSION}/latest/config"}
image_name=zImage
dtb_name="am57xx-beagle-x15"
;;
hikey)
ARCH=arm64
CONFIG_URL=${CONFIG_URL:-"http://snapshots.linaro.org/openembedded/lkft/morty/${MACHINE}/rpb/${KERNEL_VERSION}/latest/config"}
image_name=Image
dtb_name="hi6220-hikey"
;;
*)
usage
exit 1
;;
esac
OUTPUT=${OUTPUT:-"${TOP}/build_output/${ARCH}/${git_describe}"}
STAGING=${STAGING:-"${TOP}/staging/${ARCH}/${git_describe}"}
if [ $(grep -c "^WHAT IS LINUX" README) -ne 1 ] &&
[ $(grep -c "^Linux kernel" README) -ne 1 ]; then
echo -e "ERROR: Need to run this script $(basename $0),"
echo -e " from a kernel repository"
echo ""
usage
exit 1
fi
case $ARCH in
arm)
CROSS_COMPILE=${CROSS_COMPILE:-arm-linux-gnueabihf-}
;;
arm64)
CROSS_COMPILE=${CROSS_COMPILE:-aarch64-linux-gnu-}
;;
*)
esac
if [[ $clean_build -eq 1 ]]; then
echo "Cleaning up output and staging dir before building!"
rm -rf ${OUTPUT}
rm -rf ${STAGING}
fi
curl -sSL -o .config ${CONFIG_URL}
yes '' |make -j ${NUM_CPUS} CROSS_COMPILE=${CROSS_COMPILE} ARCH=${ARCH} KDIR=${KDIR} O=${OUTPUT} oldconfig
rm .config
make -j ${NUM_CPUS} CROSS_COMPILE=${CROSS_COMPILE} ARCH=${ARCH} KDIR=${KDIR} O=${OUTPUT}
if [[ -d arch/${ARCH}/boot/dts ]]; then
make -j ${NUM_CPUS} CROSS_COMPILE=${CROSS_COMPILE} ARCH=${ARCH} KDIR=${KDIR} O=${OUTPUT} INSTALL_DTBS_PATH=${STAGING}/dtbs dtbs_install
for file in $(find ${STAGING}/dtbs -type f -name '*.dtb') ; do
if [[ ! $(basename ${file}) =~ ${git_describe}.dtb ]]; then
new_file=$(printf '%s\n' "${file%.dtb}-${git_describe}.dtb");
mv ${file} ${new_file}
fi
done
fi
if [[ $(grep CONFIG_MODULES=y ${OUTPUT}/.config) ]]; then
make -j ${NUM_CPUS} CROSS_COMPILE=${CROSS_COMPILE} ARCH=${ARCH} KDIR=${KDIR} O=${OUTPUT} INSTALL_MOD_PATH=${STAGING} modules_install
pushd ${STAGING}
tar -zcf modules-$(basename ${STAGING}).tar.gz lib/
popd
fi
cp -f ${OUTPUT}/.config ${STAGING}/kernel-${git_describe}.config
make -j ${NUM_CPUS} CROSS_COMPILE=${CROSS_COMPILE} ARCH=${ARCH} KDIR=${KDIR} O=${OUTPUT} Image
cp -f ${OUTPUT}/arch/${ARCH}/boot/${image_name} ${STAGING}/${image_name}-${git_describe}
cp -f $(find ${STAGING} -type f -name "*${dtb_name}-${git_describe}.dtb") ${STAGING}/
## vim: set sw=4 sts=4 et foldmethod=syntax : ##
|
