| #!/bin/bash |
| # This script builds the kernel for the raspberry pi. |
| # |
| # git@github.com:frc971/linux.git |
| # |
| # We are using the frc971-5.10-pi4-rt branch |
| # |
| # Point it at the version of that repo you want to build, and it'll generate a |
| # .tar.gz of the bits to install. |
| |
| |
| set -ex |
| |
| echo $# |
| if [[ $# -lt 2 ]]; |
| then |
| echo "Pass in the kernel directory and then the destination .tar.gz" |
| exit 1 |
| fi |
| |
| export OUTPUT="$(realpath $(dirname $2))/$(basename ${2})" |
| export TMPDIR="${OUTPUT}_tmpdir" |
| |
| mkdir -p "${TMPDIR}" |
| mkdir -p "${TMPDIR}/fat32/overlays" |
| mkdir -p "${TMPDIR}/ext4" |
| |
| pushd "${1}" |
| |
| export KERNEL=kernel8 |
| |
| make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- Image modules dtbs -j 60 |
| |
| cp arch/arm64/boot/Image "${TMPDIR}/fat32/$KERNEL.img" |
| cp arch/arm64/boot/dts/broadcom/*.dtb "${TMPDIR}/fat32/" |
| cp arch/arm64/boot/dts/overlays/*.dtb* "${TMPDIR}/fat32/overlays/" |
| cp arch/arm64/boot/dts/overlays/README "${TMPDIR}/fat32/overlays/" |
| |
| make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- INSTALL_MOD_PATH="${TMPDIR}/ext4" modules_install |
| |
| cd "${TMPDIR}" |
| tar cvzf "${OUTPUT}" --owner=0 --group=0 "./" |
| |
| popd |
| |
| rm -rf "${TMPDIR}" |
| |
| echo "Kernel is now available at: ${OUTPUT}" |