| #!/bin/sh |
| |
| # SPDX-License-Identifier: GPL-2.0-or-later |
| # Update the kernel headers copy from a kernel source tree |
| |
| if [ $# != 1 ] ; then |
| echo "Usage: $0 <kernel dir>" |
| exit 1 |
| fi |
| |
| header_dir="$(dirname "$(realpath "$0")")/../include/linux" |
| kernel_dir="$1" |
| |
| # Bail out if the directory doesn't contain kernel sources |
| line=$(head -3 "${kernel_dir}/Kbuild" 2>/dev/null | tail -1) |
| if [ "$line" != "# Kbuild for top-level directory of the kernel" ] ; then |
| echo "Directory ${kernel_dir} doesn't contain a kernel source tree" |
| exit 1 |
| fi |
| |
| if [ ! -d "${kernel_dir}/.git" ] ; then |
| echo "Directory ${kernel_dir} doesn't contain a git tree" |
| exit 1 |
| fi |
| |
| # Check the kernel version, and reject dirty trees |
| version=$(git -C "${kernel_dir}" describe --dirty) |
| echo $version |
| if echo "${version}" | grep -q dirty ; then |
| echo "Kernel tree in ${kernel_dir} is dirty" |
| exit 1 |
| fi |
| |
| # Install the headers to a temporary directory |
| install_dir=$(mktemp -d) |
| if [ ! -d "${install_dir}" ] ; then |
| echo "Failed to create temporary directory" |
| exit 1 |
| fi |
| |
| trap "rm -rf ${install_dir}" EXIT |
| |
| set -e |
| make -C "${kernel_dir}" O="${install_dir}" headers_install |
| set +e |
| |
| # Copy the headers |
| headers=" |
| drm/drm_fourcc.h |
| linux/dma-buf.h |
| linux/dma-heap.h |
| linux/media-bus-format.h |
| linux/media.h |
| linux/rkisp1-config.h |
| linux/v4l2-common.h |
| linux/v4l2-controls.h |
| linux/v4l2-mediabus.h |
| linux/v4l2-subdev.h |
| linux/videodev2.h |
| " |
| |
| for header in $headers ; do |
| name=$(basename "${header}") |
| cp "${install_dir}/usr/include/${header}" "${header_dir}/${name}" |
| done |
| |
| # The IPU3 header is a special case, as it's stored in staging. Handle it |
| # manually. |
| (cd "${install_dir}" ; "${kernel_dir}/scripts/headers_install.sh" \ |
| "${kernel_dir}/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h" \ |
| "${header_dir}/intel-ipu3.h") |
| |
| # Update the README file |
| cat <<EOF > "${header_dir}/README" |
| # SPDX-License-Identifier: CC0-1.0 |
| |
| Files in this directory are imported from ${version} of the Linux kernel. Do not |
| modify them manually. |
| EOF |
| |
| # Cleanup |
| rm -rf "${install_dir}" |
| |
| cat <<EOF |
| ---------------------------------------------------------------------- |
| Kernel headers updated. Please review and up-port local changes before |
| committing. |
| ---------------------------------------------------------------------- |
| EOF |