|
|
#
|
|
|
# Build and Setup RPi2/3 Kernel
|
|
|
#
|
|
|
|
|
|
# Load utility functions
|
|
|
. ./functions.sh
|
|
|
|
|
|
# Fetch and build latest raspberry kernel
|
|
|
if [ "$BUILD_KERNEL" = true ] ; then
|
|
|
# Setup source directory
|
|
|
mkdir -p "${KERNEL_DIR}"
|
|
|
|
|
|
# Copy existing kernel sources into chroot directory
|
|
|
if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then
|
|
|
# Copy kernel sources and include hidden files
|
|
|
cp -r "${KERNELSRC_DIR}/". "${KERNEL_DIR}"
|
|
|
|
|
|
# Clean the kernel sources
|
|
|
if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
|
|
|
fi
|
|
|
else # KERNELSRC_DIR=""
|
|
|
# Create temporary directory for kernel sources
|
|
|
temp_dir=$(as_nobody mktemp -d)
|
|
|
|
|
|
# Fetch current RPi2/3 kernel sources
|
|
|
if [ -z "${KERNEL_BRANCH}" ] ; then
|
|
|
as_nobody -H git -C "${temp_dir}" clone --depth=1 "${KERNEL_URL}" linux
|
|
|
else
|
|
|
as_nobody -H git -C "${temp_dir}" clone --depth=1 --branch "${KERNEL_BRANCH}" "${KERNEL_URL}" linux
|
|
|
fi
|
|
|
|
|
|
# Copy downloaded kernel sources
|
|
|
cp -r "${temp_dir}/linux/"* "${KERNEL_DIR}"
|
|
|
|
|
|
# Remove temporary directory for kernel sources
|
|
|
rm -fr "${temp_dir}"
|
|
|
|
|
|
# Set permissions of the kernel sources
|
|
|
chown -R root:root "${R}/usr/src"
|
|
|
fi
|
|
|
|
|
|
# Calculate optimal number of kernel building threads
|
|
|
if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then
|
|
|
KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
|
|
|
fi
|
|
|
|
|
|
# Configure and build kernel
|
|
|
if [ "$KERNELSRC_PREBUILT" = false ] ; then
|
|
|
# Remove device, network and filesystem drivers from kernel configuration
|
|
|
if [ "$KERNEL_REDUCE" = true ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
|
|
|
sed -i\
|
|
|
-e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
|
|
|
-e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
|
|
|
-e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
|
|
|
-e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
|
|
|
-e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
|
|
|
-e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
|
|
|
-e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
|
|
|
"${KERNEL_DIR}/.config"
|
|
|
fi
|
|
|
|
|
|
if [ "$KERNELSRC_CONFIG" = true ] ; then
|
|
|
# Load default raspberry kernel configuration
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
|
|
|
|
|
|
#Switch to KERNELSRC_DIR
|
|
|
pushd "${KERNEL_DIR}"
|
|
|
|
|
|
# GPL v2.0
|
|
|
#https://github.com/sakaki-/bcmrpi3-kernel-bis/blob/master/conform_config.sh
|
|
|
if [ "$KERNEL_ZSWAP" = true ] && ( [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ) ; then
|
|
|
# enable ZSWAP support for better performance during large builds etc.
|
|
|
# requires activation via kernel parameter or sysfs
|
|
|
# see e.g. https://askubuntu.com/a/472227 for a summary of ZSWAP (vs ZRAM etc.)
|
|
|
# and e.g. https://wiki.archlinux.org/index.php/zswap for parameters etc.
|
|
|
set_kernel_config ZPOOL y
|
|
|
set_kernel_config ZSWAP y
|
|
|
set_kernel_config ZBUD y
|
|
|
set_kernel_config Z3FOLD y
|
|
|
set_kernel_config ZSMALLOC y
|
|
|
set_kernel_config PGTABLE_MAPPING y
|
|
|
fi
|
|
|
|
|
|
if [ "$KERNEL_VIRT" = true ] && ( [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ) ; then
|
|
|
# enable basic KVM support; see e.g.
|
|
|
# https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=210546&start=25#p1300453
|
|
|
set_kernel_config VIRTUALIZATION y
|
|
|
set_kernel_config KVM y
|
|
|
set_kernel_config VHOST_NET m
|
|
|
set_kernel_config VHOST_CROSS_ENDIAN_LEGACY y
|
|
|
fi
|
|
|
#See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406
|
|
|
# Netfilter kernel support
|
|
|
if [ "$KERNEL_NF" = true ] && ( [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ) ; then
|
|
|
set_kernel_config CONFIG_NETFILTER_XTABLES m
|
|
|
set_kernel_config CONFIG_NF_DUP_NETDEV m
|
|
|
set_kernel_config CONFIG_NF_NAT_SIP m
|
|
|
set_kernel_config CONFIG_NF_TABLES_ARP m
|
|
|
set_kernel_config CONFIG_NF_TABLES_BRIDGE m
|
|
|
set_kernel_config NF_TABLES m
|
|
|
set_kernel_config CONFIG_BRIDGE_EBT_BROUTE m
|
|
|
set_kernel_config CONFIG_BRIDGE_EBT_T_FILTER m
|
|
|
set_kernel_config CONFIG_BRIDGE_NF_EBTABLES m
|
|
|
set_kernel_config CONFIG_IP6_NF_IPTABLES m
|
|
|
set_kernel_config CONFIG_IP6_NF_MATCH_AH m
|
|
|
set_kernel_config CONFIG_IP6_NF_MATCH_EUI64 m
|
|
|
set_kernel_config CONFIG_IP6_NF_NAT m
|
|
|
set_kernel_config CONFIG_IP6_NF_TARGET_MASQUERADE m
|
|
|
set_kernel_config CONFIG_IP6_NF_TARGET_NPT m
|
|
|
set_kernel_config CONFIG_IP_SET_BITMAP_IPMAC m
|
|
|
set_kernel_config CONFIG_IP_SET_BITMAP_PORT m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_IP m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_IPMARK m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_IPPORT m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_IPPORTIP m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_IPPORTNET m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_MAC m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_NET m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_NETIFACE m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_NETNET m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_NETPORT m
|
|
|
set_kernel_config CONFIG_IP_SET_HASH_NETPORTNET m
|
|
|
set_kernel_config CONFIG_IP_SET_LIST_SET m
|
|
|
set_kernel_config CONFIG_NFT_BRIDGE_META m
|
|
|
set_kernel_config CONFIG_NFT_BRIDGE_REJECT m
|
|
|
set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV4 m
|
|
|
set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m
|
|
|
set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV4 m
|
|
|
set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m
|
|
|
set_kernel_config CONFIG_NFT_COMPAT m
|
|
|
set_kernel_config CONFIG_NFT_COUNTER m
|
|
|
set_kernel_config CONFIG_NFT_CT m
|
|
|
set_kernel_config CONFIG_NFT_DUP_IPV4 m
|
|
|
set_kernel_config CONFIG_NFT_DUP_IPV6 m
|
|
|
set_kernel_config CONFIG_NFT_DUP_NETDEV m
|
|
|
set_kernel_config CONFIG_NFT_EXTHDR m
|
|
|
set_kernel_config CONFIG_NFT_FWD_NETDEV m
|
|
|
set_kernel_config CONFIG_NFT_HASH m
|
|
|
set_kernel_config CONFIG_NFT_LIMIT m
|
|
|
set_kernel_config CONFIG_NFT_LOG m
|
|
|
set_kernel_config CONFIG_NFT_MASQ m
|
|
|
set_kernel_config CONFIG_NFT_MASQ_IPV4 m
|
|
|
set_kernel_config CONFIG_NFT_MASQ_IPV6 m
|
|
|
set_kernel_config CONFIG_NFT_META m
|
|
|
set_kernel_config CONFIG_NFT_NAT m
|
|
|
set_kernel_config CONFIG_NFT_NUMGEN m
|
|
|
set_kernel_config CONFIG_NFT_QUEUE m
|
|
|
set_kernel_config CONFIG_NFT_QUOTA m
|
|
|
set_kernel_config CONFIG_NFT_REDIR m
|
|
|
set_kernel_config CONFIG_NFT_REDIR_IPV4 m
|
|
|
set_kernel_config CONFIG_NFT_REDIR_IPV6 m
|
|
|
set_kernel_config CONFIG_NFT_REJECT m
|
|
|
set_kernel_config CONFIG_NFT_REJECT_INET m
|
|
|
set_kernel_config CONFIG_NFT_REJECT_IPV4 m
|
|
|
set_kernel_config CONFIG_NFT_REJECT_IPV6 m
|
|
|
set_kernel_config CONFIG_NFT_SET_HASH m
|
|
|
set_kernel_config CONFIG_NFT_SET_RBTREE m
|
|
|
set_kernel_config CONFIG_NF_CONNTRACK_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_CONNTRACK_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_DEFRAG_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_DEFRAG_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_DUP_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_DUP_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_LOG_BRIDGE m
|
|
|
set_kernel_config CONFIG_NF_LOG_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_LOG_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_NAT_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_NAT_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_NAT_PPTP m
|
|
|
set_kernel_config CONFIG_NF_NAT_PROTO_GRE m
|
|
|
set_kernel_config CONFIG_NF_NAT_REDIRECT m
|
|
|
set_kernel_config CONFIG_NF_NAT_SNMP_BASIC m
|
|
|
set_kernel_config CONFIG_NF_NAT_TFTP m
|
|
|
set_kernel_config CONFIG_NF_REJECT_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_REJECT_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_TABLES_INET m
|
|
|
set_kernel_config CONFIG_NF_TABLES_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_TABLES_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_TABLES_NETDEV m
|
|
|
set_kernel_config NETFILTER_XTABLES m
|
|
|
fi
|
|
|
|
|
|
#https://groups.google.com/forum/#!topic/linux.gentoo.user/_2aSc_ztGpA
|
|
|
#https://github.com/torvalds/linux/blob/master/init/Kconfig#L848
|
|
|
# Enables BPF syscall for systemd-journald
|
|
|
if [ "$KERNEL_BPF" = true ] && ( [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ) ; then
|
|
|
set_kernel_config CONFIG_BPF_SYSCALL y
|
|
|
set_kernel_config CONFIG_CGROUP_BPF y
|
|
|
fi
|
|
|
|
|
|
#Revert to previous directory
|
|
|
popd
|
|
|
|
|
|
# Set kernel configuration parameters to enable qemu emulation
|
|
|
if [ "$ENABLE_QEMU" = true ] ; then
|
|
|
echo "CONFIG_FHANDLE=y" >> "${KERNEL_DIR}"/.config
|
|
|
echo "CONFIG_LBDAF=y" >> "${KERNEL_DIR}"/.config
|
|
|
|
|
|
if [ "$ENABLE_CRYPTFS" = true ] ; then
|
|
|
{
|
|
|
echo "CONFIG_EMBEDDED=y"
|
|
|
echo "CONFIG_EXPERT=y"
|
|
|
echo "CONFIG_DAX=y"
|
|
|
echo "CONFIG_MD=y"
|
|
|
echo "CONFIG_BLK_DEV_MD=y"
|
|
|
echo "CONFIG_MD_AUTODETECT=y"
|
|
|
echo "CONFIG_BLK_DEV_DM=y"
|
|
|
echo "CONFIG_BLK_DEV_DM_BUILTIN=y"
|
|
|
echo "CONFIG_DM_CRYPT=y"
|
|
|
echo "CONFIG_CRYPTO_BLKCIPHER=y"
|
|
|
echo "CONFIG_CRYPTO_CBC=y"
|
|
|
echo "CONFIG_CRYPTO_XTS=y"
|
|
|
echo "CONFIG_CRYPTO_SHA512=y"
|
|
|
echo "CONFIG_CRYPTO_MANAGER=y"
|
|
|
} >> ${KERNEL_DIR}/.config
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
# Copy custom kernel configuration file
|
|
|
if [ -n "$KERNELSRC_USRCONFIG" ] ; then
|
|
|
cp "$KERNELSRC_USRCONFIG" "${KERNEL_DIR}"/.config
|
|
|
fi
|
|
|
|
|
|
# Set kernel configuration parameters to their default values
|
|
|
if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig
|
|
|
fi
|
|
|
|
|
|
# Start menu-driven kernel configuration (interactive)
|
|
|
if [ "$KERNEL_MENUCONFIG" = true ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
# Use ccache to cross compile the kernel
|
|
|
if [ "$KERNEL_CCACHE" = true ] ; then
|
|
|
cc="ccache ${CROSS_COMPILE}gcc"
|
|
|
else
|
|
|
cc="${CROSS_COMPILE}gcc"
|
|
|
fi
|
|
|
|
|
|
# Cross compile kernel and dtbs
|
|
|
make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs
|
|
|
|
|
|
# Cross compile kernel modules
|
|
|
if [ "$(grep "CONFIG_MODULES=y" "${KERNEL_DIR}/.config")" ] ; then
|
|
|
make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
# Check if kernel compilation was successful
|
|
|
if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" ] ; then
|
|
|
echo "error: kernel compilation failed! (kernel image not found)"
|
|
|
cleanup
|
|
|
exit 1
|
|
|
fi
|
|
|
|
|
|
# Install kernel modules
|
|
|
if [ "$ENABLE_REDUCE" = true ] ; then
|
|
|
if [ "$(grep "CONFIG_MODULES=y" "${KERNEL_DIR}/.config")" ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
|
|
|
fi
|
|
|
else
|
|
|
if [ "$(grep "CONFIG_MODULES=y" "${KERNEL_DIR}/.config")" ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
|
|
|
fi
|
|
|
|
|
|
# Install kernel firmware
|
|
|
if [ "$(grep "^firmware_install:" "${KERNEL_DIR}/Makefile")" ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
# Install kernel headers
|
|
|
if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
|
|
|
fi
|
|
|
# make tar.gz kernel package - missing os bzw. modules
|
|
|
#** ** ** WARNING ** ** **
|
|
|
#Your architecture did not define any architecture-dependent files
|
|
|
#to be placed into the tarball. Please add those to ./scripts/package/buildtar .
|
|
|
# make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" targz-pkg
|
|
|
|
|
|
# Prepare boot (firmware) directory
|
|
|
mkdir "${BOOT_DIR}"
|
|
|
|
|
|
# Get kernel release version
|
|
|
KERNEL_VERSION=$(cat "${KERNEL_DIR}/include/config/kernel.release")
|
|
|
|
|
|
# Copy kernel configuration file to the boot directory
|
|
|
install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
|
|
|
|
|
|
# Prepare device tree directory
|
|
|
mkdir "${BOOT_DIR}/overlays"
|
|
|
|
|
|
# Ensure the proper .dtb is located
|
|
|
if [ "$KERNEL_ARCH" = "arm" ] ; then
|
|
|
for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do
|
|
|
if [ -f "${dtb}" ] ; then
|
|
|
install_readonly "${dtb}" "${BOOT_DIR}/"
|
|
|
fi
|
|
|
done
|
|
|
else
|
|
|
for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do
|
|
|
if [ -f "${dtb}" ] ; then
|
|
|
install_readonly "${dtb}" "${BOOT_DIR}/"
|
|
|
fi
|
|
|
done
|
|
|
fi
|
|
|
|
|
|
# Copy compiled dtb device tree files
|
|
|
if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then
|
|
|
for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb ; do
|
|
|
if [ -f "${dtb}" ] ; then
|
|
|
install_readonly "${dtb}" "${BOOT_DIR}/overlays/"
|
|
|
fi
|
|
|
done
|
|
|
|
|
|
if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then
|
|
|
install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
if [ "$ENABLE_UBOOT" = false ] ; then
|
|
|
# Convert and copy kernel image to the boot directory
|
|
|
"${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
|
|
|
else
|
|
|
# Copy kernel image to the boot directory
|
|
|
install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
|
|
|
fi
|
|
|
|
|
|
# Remove kernel sources
|
|
|
if [ "$KERNEL_REMOVESRC" = true ] ; then
|
|
|
rm -fr "${KERNEL_DIR}"
|
|
|
else
|
|
|
# Prepare compiled kernel modules
|
|
|
if [ "$(grep "CONFIG_MODULES=y" "${KERNEL_DIR}/.config")" ] ; then
|
|
|
if [ "$(grep "^modules_prepare:" "${KERNEL_DIR}/Makefile")" ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare
|
|
|
fi
|
|
|
|
|
|
# Create symlinks for kernel modules
|
|
|
chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build"
|
|
|
chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source"
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
else # BUILD_KERNEL=false
|
|
|
# echo " Install precompiled kernel..."
|
|
|
# echo "error: not implemented"
|
|
|
if [ "$KERNEL_ARCH" = arm64 ] && ( [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ) ; then
|
|
|
# Create temporary directory for dl
|
|
|
temp_dir=$(as_nobody mktemp -d)
|
|
|
|
|
|
# Fetch kernel dl
|
|
|
as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI3_64_KERNEL_URL"
|
|
|
#extract download
|
|
|
tar -xJf kernel.tar.xz -C "${R}"
|
|
|
|
|
|
# Remove temporary directory for kernel sources
|
|
|
rm -fr "${temp_dir}"
|
|
|
|
|
|
# Set permissions of the kernel sources
|
|
|
chown -R root:root "${R}/boot/firmware"
|
|
|
chown -R root:root "${R}/lib"
|
|
|
fi
|
|
|
|
|
|
# Check if kernel installation was successful
|
|
|
KERNEL="$(ls -1 "${R}"/boot/kernel* | sort | tail -n 1)"
|
|
|
if [ -z "$KERNEL" ] ; then
|
|
|
echo "error: kernel installation failed! (/boot/kernel* not found)"
|
|
|
cleanup
|
|
|
exit 1
|
|
|
fi
|
|
|
|
|
|
if [ "$SET_ARCH" = 64 ] ; then
|
|
|
echo "Using precompiled arm64 kernel"
|
|
|
else
|
|
|
echo "error: no precompiled arm64 (bcmrpi3) kernel found"
|
|
|
exit 1
|
|
|
# inset precompiled 64 bit kernel code here
|
|
|
fi
|
|
|
#fi build_kernel=true
|
|
|
fi
|
|
|
|
