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SUMMARY = "Qualcomm linux kernel UKI creation"
DESCRIPTION = "Pack kernel image as a UKI (Unified Kernel Image) \
by combining UEFI stub from systemd-boot, the kernel Image, initramfs, \
optional dtb, osrelease info and other metadata like kernel cmdline."
LICENSE = "BSD-3-Clause-Clear"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/BSD-3-Clause-Clear;md5=7a434440b651f4a472ca93716d01033a"
COMPATIBLE_HOST = '(arm.*|aarch64.*)-(linux.*)'
inherit python3native image-artifact-names linux-kernel-base
DEPENDS = " systemd-boot-native python3-native python3-pefile-native \
os-release systemd-boot virtual/kernel "
require conf/image-uefi.conf
KERNEL_VERSION = "${@get_kernelversion_file('${STAGING_KERNEL_BUILDDIR}')}"
do_configure[depends] += " \
systemd-boot:do_deploy \
virtual/kernel:do_deploy \
"
do_configure[depends] += "${@ '${INITRAMFS_IMAGE}:do_image_complete' if d.getVar('INITRAMFS_IMAGE') else ''}"
do_compile() {
# Construct the ukify command
ukify_cmd=""
# Ramdisk
if [ -n "${INITRAMFS_IMAGE}" ]; then
initrd=""
for img in ${INITRAMFS_FSTYPES}; do
if [ -e "${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.$img" ]; then
initrd="${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.$img"
break
fi
done
[ -f $initrd ] && echo "Creating UKI with $initrd" || bbfatal "$initrd is not a valid initrd to create UKI."
ukify_cmd="$ukify_cmd --initrd=$initrd"
fi
# Kernel Image
# Note: systemd-boot can't handle compressed kernel image.
kernel_image="${DEPLOY_DIR_IMAGE}/Image"
[ -f $kernel_image ] && echo "Creating UKI with $kernel_image" || bbfatal "No valid kernel image to create UKI. Add 'Image' to KERNEL_IMAGETYPES."
ukify_cmd="$ukify_cmd --linux=$kernel_image"
# Kernel version
ukify_cmd="$ukify_cmd --uname ${KERNEL_VERSION}"
# Kernel cmdline
if [ -n "${KERNEL_CMDLINE_EXTRA}" ]; then
ukify_cmd="$ukify_cmd --cmdline='${KERNEL_CMDLINE_EXTRA}'"
fi
# Architecture
ukify_cmd="$ukify_cmd --efi-arch ${EFI_ARCH}"
# OS-release
osrelease="${RECIPE_SYSROOT}${libdir}/os-release"
ukify_cmd="$ukify_cmd --os-release @$osrelease"
# Stub
stub="${DEPLOY_DIR_IMAGE}/linux${EFI_ARCH}.efi.stub"
[ -f $stub ] && echo "Creating UKI with $stub" || bbfatal "$stub is not a valid stub to create UKI."
ukify_cmd="$ukify_cmd --stub $stub"
# Output
mkdir -p "${B}${EFI_UKI_PATH}"
output="${B}${EFI_UKI_PATH}/${EFI_LINUX_IMG}"
rm -f $output
ukify_cmd="$ukify_cmd --output=$output"
# Call ukify to generate uki.
echo "ukify cmd:$ukify_cmd"
ukify build $ukify_cmd
}
do_install() {
install -Dm 0755 ${B}${EFI_UKI_PATH}/${EFI_LINUX_IMG} ${D}${EFI_UKI_PATH}/${EFI_LINUX_IMG}
}
FILES:${PN} = "${EFI_UKI_PATH}/${EFI_LINUX_IMG}"
PACKAGE_ARCH = "${MACHINE_ARCH}"
SKIP_RECIPE[linux-qcom-uki] ?= "${@bb.utils.contains('KERNEL_IMAGETYPES', 'Image', '', 'systemd-boot needs uncompressed kernel image. Add "Image" to KERNEL_IMAGETYPES.', d)}"
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