inherit kernel-uboot kernel-artifact-names uboot-sign KERNEL_IMAGETYPE_REPLACEMENT = "" python __anonymous () { kerneltypes = d.getVar('KERNEL_IMAGETYPES') or "" if 'fitImage' in kerneltypes.split(): depends = d.getVar("DEPENDS") depends = "%s u-boot-tools-native dtc-native" % depends d.setVar("DEPENDS", depends) uarch = d.getVar("UBOOT_ARCH") if uarch == "arm64": replacementtype = "Image" elif uarch == "riscv": replacementtype = "Image" elif uarch == "mips": replacementtype = "vmlinuz.bin" elif uarch == "x86": replacementtype = "bzImage" elif uarch == "microblaze": replacementtype = "linux.bin" else: replacementtype = "zImage" d.setVar("KERNEL_IMAGETYPE_REPLACEMENT", replacementtype) # Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal # to kernel.bbclass . We have to override it, since we pack zImage # (at least for now) into the fitImage . typeformake = d.getVar("KERNEL_IMAGETYPE_FOR_MAKE") or "" if 'fitImage' in typeformake.split(): d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake.replace('fitImage', replacementtype)) image = d.getVar('INITRAMFS_IMAGE') if image: d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_image_complete') #check if there are any dtb providers providerdtb = d.getVar("PREFERRED_PROVIDER_virtual/dtb") if providerdtb: d.appendVarFlag('do_assemble_fitimage', 'depends', ' virtual/dtb:do_populate_sysroot') d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' virtual/dtb:do_populate_sysroot') d.setVar('EXTERNAL_KERNEL_DEVICETREE', "${RECIPE_SYSROOT}/boot/devicetree") # Verified boot will sign the fitImage and append the public key to # U-Boot dtb. We ensure the U-Boot dtb is deployed before assembling # the fitImage: if d.getVar('UBOOT_SIGN_ENABLE') == "1" and d.getVar('UBOOT_DTB_BINARY'): uboot_pn = d.getVar('PREFERRED_PROVIDER_u-boot') or 'u-boot' d.appendVarFlag('do_assemble_fitimage', 'depends', ' %s:do_populate_sysroot' % uboot_pn) if d.getVar('INITRAMFS_IMAGE_BUNDLE') == "1": d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' %s:do_populate_sysroot' % uboot_pn) } # Description string FIT_DESC ?= "Kernel fitImage for ${DISTRO_NAME}/${PV}/${MACHINE}" # Sign individual images as well FIT_SIGN_INDIVIDUAL ?= "0" # # Emit the fitImage ITS header # # $1 ... .its filename fitimage_emit_fit_header() { cat << EOF >> ${1} /dts-v1/; / { description = "${FIT_DESC}"; #address-cells = <1>; EOF } # # Emit the fitImage section bits # # $1 ... .its filename # $2 ... Section bit type: imagestart - image section start # confstart - configuration section start # sectend - section end # fitend - fitimage end # fitimage_emit_section_maint() { case $2 in imagestart) cat << EOF >> ${1} images { EOF ;; confstart) cat << EOF >> ${1} configurations { EOF ;; sectend) cat << EOF >> ${1} }; EOF ;; fitend) cat << EOF >> ${1} }; EOF ;; esac } # # Emit the fitImage ITS kernel section # # $1 ... .its filename # $2 ... Image counter # $3 ... Path to kernel image # $4 ... Compression type fitimage_emit_section_kernel() { kernel_csum="${FIT_HASH_ALG}" kernel_sign_algo="${FIT_SIGN_ALG}" kernel_sign_keyname="${UBOOT_SIGN_KEYNAME}" ENTRYPOINT="${UBOOT_ENTRYPOINT}" if [ -n "${UBOOT_ENTRYSYMBOL}" ]; then ENTRYPOINT=`${HOST_PREFIX}nm vmlinux | \ awk '$3=="${UBOOT_ENTRYSYMBOL}" {print "0x"$1;exit}'` fi cat << EOF >> ${1} kernel-${2} { description = "Linux kernel"; data = /incbin/("${3}"); type = "kernel"; arch = "${UBOOT_ARCH}"; os = "linux"; compression = "${4}"; load = <${UBOOT_LOADADDRESS}>; entry = <${ENTRYPOINT}>; hash-1 { algo = "${kernel_csum}"; }; }; EOF if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${FIT_SIGN_INDIVIDUAL}" = "1" -a -n "${kernel_sign_keyname}" ] ; then sed -i '$ d' ${1} cat << EOF >> ${1} signature-1 { algo = "${kernel_csum},${kernel_sign_algo}"; key-name-hint = "${kernel_sign_keyname}"; }; }; EOF fi } # # Emit the fitImage ITS DTB section # # $1 ... .its filename # $2 ... Image counter # $3 ... Path to DTB image fitimage_emit_section_dtb() { dtb_csum="${FIT_HASH_ALG}" dtb_sign_algo="${FIT_SIGN_ALG}" dtb_sign_keyname="${UBOOT_SIGN_KEYNAME}" dtb_loadline="" dtb_ext=${DTB##*.} if [ "${dtb_ext}" = "dtbo" ]; then if [ -n "${UBOOT_DTBO_LOADADDRESS}" ]; then dtb_loadline="load = <${UBOOT_DTBO_LOADADDRESS}>;" fi elif [ -n "${UBOOT_DTB_LOADADDRESS}" ]; then dtb_loadline="load = <${UBOOT_DTB_LOADADDRESS}>;" fi cat << EOF >> ${1} fdt-${2} { description = "Flattened Device Tree blob"; data = /incbin/("${3}"); type = "flat_dt"; arch = "${UBOOT_ARCH}"; compression = "none"; ${dtb_loadline} hash-1 { algo = "${dtb_csum}"; }; }; EOF if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${FIT_SIGN_INDIVIDUAL}" = "1" -a -n "${dtb_sign_keyname}" ] ; then sed -i '$ d' ${1} cat << EOF >> ${1} signature-1 { algo = "${dtb_csum},${dtb_sign_algo}"; key-name-hint = "${dtb_sign_keyname}"; }; }; EOF fi } # # Emit the fitImage ITS u-boot script section # # $1 ... .its filename # $2 ... Image counter # $3 ... Path to boot script image fitimage_emit_section_boot_script() { bootscr_csum="${FIT_HASH_ALG}" bootscr_sign_algo="${FIT_SIGN_ALG}" bootscr_sign_keyname="${UBOOT_SIGN_KEYNAME}" cat << EOF >> ${1} bootscr@${2} { description = "U-boot script"; data = /incbin/("${3}"); type = "script"; arch = "${UBOOT_ARCH}"; compression = "none"; hash@1 { algo = "${bootscr_csum}"; }; }; EOF if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${FIT_SIGN_INDIVIDUAL}" = "1" -a -n "${bootscr_sign_keyname}" ] ; then sed -i '$ d' ${1} cat << EOF >> ${1} signature@1 { algo = "${bootscr_csum},${bootscr_sign_algo}"; key-name-hint = "${bootscr_sign_keyname}"; }; }; EOF fi } # # Emit the fitImage ITS setup section # # $1 ... .its filename # $2 ... Image counter # $3 ... Path to setup image fitimage_emit_section_setup() { setup_csum="${FIT_HASH_ALG}" cat << EOF >> ${1} setup-${2} { description = "Linux setup.bin"; data = /incbin/("${3}"); type = "x86_setup"; arch = "${UBOOT_ARCH}"; os = "linux"; compression = "none"; load = <0x00090000>; entry = <0x00090000>; hash-1 { algo = "${setup_csum}"; }; }; EOF } # # Emit the fitImage ITS ramdisk section # # $1 ... .its filename # $2 ... Image counter # $3 ... Path to ramdisk image fitimage_emit_section_ramdisk() { ramdisk_csum="${FIT_HASH_ALG}" ramdisk_sign_algo="${FIT_SIGN_ALG}" ramdisk_sign_keyname="${UBOOT_SIGN_KEYNAME}" ramdisk_loadline="" ramdisk_entryline="" if [ -n "${UBOOT_RD_LOADADDRESS}" ]; then ramdisk_loadline="load = <${UBOOT_RD_LOADADDRESS}>;" fi if [ -n "${UBOOT_RD_ENTRYPOINT}" ]; then ramdisk_entryline="entry = <${UBOOT_RD_ENTRYPOINT}>;" fi cat << EOF >> ${1} ramdisk-${2} { description = "${INITRAMFS_IMAGE}"; data = /incbin/("${3}"); type = "ramdisk"; arch = "${UBOOT_ARCH}"; os = "linux"; compression = "none"; ${ramdisk_loadline} ${ramdisk_entryline} hash-1 { algo = "${ramdisk_csum}"; }; }; EOF if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${FIT_SIGN_INDIVIDUAL}" = "1" -a -n "${ramdisk_sign_keyname}" ] ; then sed -i '$ d' ${1} cat << EOF >> ${1} signature-1 { algo = "${ramdisk_csum},${ramdisk_sign_algo}"; key-name-hint = "${ramdisk_sign_keyname}"; }; }; EOF fi } # # Emit the fitImage ITS configuration section # # $1 ... .its filename # $2 ... Linux kernel ID # $3 ... DTB image name # $4 ... ramdisk ID # $5 ... u-boot script ID # $6 ... config ID # $7 ... default flag fitimage_emit_section_config() { conf_csum="${FIT_HASH_ALG}" conf_sign_algo="${FIT_SIGN_ALG}" if [ -n "${UBOOT_SIGN_ENABLE}" ] ; then conf_sign_keyname="${UBOOT_SIGN_KEYNAME}" fi its_file="${1}" kernel_id="${2}" dtb_image="${3}" ramdisk_id="${4}" bootscr_id="${5}" config_id="${6}" default_flag="${7}" # Test if we have any DTBs at all sep="" conf_desc="" conf_node="conf-" kernel_line="" fdt_line="" ramdisk_line="" bootscr_line="" setup_line="" default_line="" # conf node name is selected based on dtb ID if it is present, # otherwise its selected based on kernel ID if [ -n "${dtb_image}" ]; then conf_node=$conf_node${dtb_image} else conf_node=$conf_node${kernel_id} fi if [ -n "${kernel_id}" ]; then conf_desc="Linux kernel" sep=", " kernel_line="kernel = \"kernel-${kernel_id}\";" fi if [ -n "${dtb_image}" ]; then conf_desc="${conf_desc}${sep}FDT blob" sep=", " fdt_line="fdt = \"fdt-${dtb_image}\";" fi if [ -n "${ramdisk_id}" ]; then conf_desc="${conf_desc}${sep}ramdisk" sep=", " ramdisk_line="ramdisk = \"ramdisk-${ramdisk_id}\";" fi if [ -n "${bootscr_id}" ]; then conf_desc="${conf_desc}${sep}u-boot script" sep=", " bootscr_line="bootscr = \"bootscr@${bootscr_id}\";" fi if [ -n "${config_id}" ]; then conf_desc="${conf_desc}${sep}setup" setup_line="setup = \"setup-${config_id}\";" fi if [ "${default_flag}" = "1" ]; then # default node is selected based on dtb ID if it is present, # otherwise its selected based on kernel ID if [ -n "${dtb_image}" ]; then default_line="default = \"conf-${dtb_image}\";" else default_line="default = \"conf-${kernel_id}\";" fi fi cat << EOF >> ${its_file} ${default_line} $conf_node { description = "${default_flag} ${conf_desc}"; ${kernel_line} ${fdt_line} ${ramdisk_line} ${bootscr_line} ${setup_line} hash-1 { algo = "${conf_csum}"; }; EOF if [ ! -z "${conf_sign_keyname}" ] ; then sign_line="sign-images = " sep="" if [ -n "${kernel_id}" ]; then sign_line="${sign_line}${sep}\"kernel\"" sep=", " fi if [ -n "${dtb_image}" ]; then sign_line="${sign_line}${sep}\"fdt\"" sep=", " fi if [ -n "${ramdisk_id}" ]; then sign_line="${sign_line}${sep}\"ramdisk\"" sep=", " fi if [ -n "${bootscr_id}" ]; then sign_line="${sign_line}${sep}\"bootscr\"" sep=", " fi if [ -n "${config_id}" ]; then sign_line="${sign_line}${sep}\"setup\"" fi sign_line="${sign_line};" cat << EOF >> ${its_file} signature-1 { algo = "${conf_csum},${conf_sign_algo}"; key-name-hint = "${conf_sign_keyname}"; ${sign_line} }; EOF fi cat << EOF >> ${its_file} }; EOF } # # Assemble fitImage # # $1 ... .its filename # $2 ... fitImage name # $3 ... include ramdisk fitimage_assemble() { kernelcount=1 dtbcount="" DTBS="" ramdiskcount=${3} setupcount="" bootscr_id="" rm -f ${1} arch/${ARCH}/boot/${2} fitimage_emit_fit_header ${1} # # Step 1: Prepare a kernel image section. # fitimage_emit_section_maint ${1} imagestart uboot_prep_kimage if [ "${INITRAMFS_IMAGE_BUNDLE}" = "1" ]; then initramfs_bundle_path="arch/"${UBOOT_ARCH}"/boot/"${KERNEL_IMAGETYPE_REPLACEMENT}".initramfs" if [ -e "${initramfs_bundle_path}" ]; then # # Include the kernel/rootfs bundle. # fitimage_emit_section_kernel ${1} "${kernelcount}" "${initramfs_bundle_path}" "${linux_comp}" else bbwarn "${initramfs_bundle_path} not found." fi else fitimage_emit_section_kernel ${1} "${kernelcount}" linux.bin "${linux_comp}" fi # # Step 2: Prepare a DTB image section # if [ -n "${KERNEL_DEVICETREE}" ]; then dtbcount=1 for DTB in ${KERNEL_DEVICETREE}; do if echo ${DTB} | grep -q '/dts/'; then bbwarn "${DTB} contains the full path to the the dts file, but only the dtb name should be used." DTB=`basename ${DTB} | sed 's,\.dts$,.dtb,g'` fi # Skip ${DTB} if it's also provided in ${EXTERNAL_KERNEL_DEVICETREE} if [ -n "${EXTERNAL_KERNEL_DEVICETREE}" ] && [ -s ${EXTERNAL_KERNEL_DEVICETREE}/${DTB} ]; then continue fi DTB_PATH="arch/${ARCH}/boot/dts/${DTB}" if [ ! -e "${DTB_PATH}" ]; then DTB_PATH="arch/${ARCH}/boot/${DTB}" fi DTB=$(echo "${DTB}" | tr '/' '_') DTBS="${DTBS} ${DTB}" fitimage_emit_section_dtb ${1} ${DTB} ${DTB_PATH} done fi if [ -n "${EXTERNAL_KERNEL_DEVICETREE}" ]; then dtbcount=1 for DTB in $(find "${EXTERNAL_KERNEL_DEVICETREE}" \( -name '*.dtb' -o -name '*.dtbo' \) -printf '%P\n' | sort); do DTB=$(echo "${DTB}" | tr '/' '_') DTBS="${DTBS} ${DTB}" fitimage_emit_section_dtb ${1} ${DTB} "${EXTERNAL_KERNEL_DEVICETREE}/${DTB}" done fi # # Step 3: Prepare a u-boot script section # if [ -n "${UBOOT_ENV}" ] && [ -d "${STAGING_DIR_HOST}/boot" ]; then if [ -e "${STAGING_DIR_HOST}/boot/${UBOOT_ENV_BINARY}" ]; then cp ${STAGING_DIR_HOST}/boot/${UBOOT_ENV_BINARY} ${B} bootscr_id="${UBOOT_ENV_BINARY}" fitimage_emit_section_boot_script ${1} "${bootscr_id}" ${UBOOT_ENV_BINARY} else bbwarn "${STAGING_DIR_HOST}/boot/${UBOOT_ENV_BINARY} not found." fi fi # # Step 4: Prepare a setup section. (For x86) # if [ -e arch/${ARCH}/boot/setup.bin ]; then setupcount=1 fitimage_emit_section_setup ${1} "${setupcount}" arch/${ARCH}/boot/setup.bin fi # # Step 5: Prepare a ramdisk section. # if [ "x${ramdiskcount}" = "x1" ] && [ "${INITRAMFS_IMAGE_BUNDLE}" != "1" ]; then # Find and use the first initramfs image archive type we find for img in cpio.lz4 cpio.lzo cpio.lzma cpio.xz cpio.gz ext2.gz cpio; do initramfs_path="${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.${img}" echo "Using $initramfs_path" if [ -e "${initramfs_path}" ]; then fitimage_emit_section_ramdisk ${1} "${ramdiskcount}" "${initramfs_path}" break fi done fi fitimage_emit_section_maint ${1} sectend # Force the first Kernel and DTB in the default config kernelcount=1 if [ -n "${dtbcount}" ]; then dtbcount=1 fi # # Step 6: Prepare a configurations section # fitimage_emit_section_maint ${1} confstart # kernel-fitimage.bbclass currently only supports a single kernel (no less or # more) to be added to the FIT image along with 0 or more device trees and # 0 or 1 ramdisk. # It is also possible to include an initramfs bundle (kernel and rootfs in one binary) # When the initramfs bundle is used ramdisk is disabled. # If a device tree is to be part of the FIT image, then select # the default configuration to be used is based on the dtbcount. If there is # no dtb present than select the default configuation to be based on # the kernelcount. if [ -n "${DTBS}" ]; then i=1 for DTB in ${DTBS}; do dtb_ext=${DTB##*.} if [ "${dtb_ext}" = "dtbo" ]; then fitimage_emit_section_config ${1} "" "${DTB}" "" "${bootscr_id}" "" "`expr ${i} = ${dtbcount}`" else fitimage_emit_section_config ${1} "${kernelcount}" "${DTB}" "${ramdiskcount}" "${bootscr_id}" "${setupcount}" "`expr ${i} = ${dtbcount}`" fi i=`expr ${i} + 1` done else defaultconfigcount=1 fitimage_emit_section_config ${1} "${kernelcount}" "" "${ramdiskcount}" "${bootscr_id}" "${setupcount}" "${defaultconfigcount}" fi fitimage_emit_section_maint ${1} sectend fitimage_emit_section_maint ${1} fitend # # Step 7: Assemble the image # ${UBOOT_MKIMAGE} \ ${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \ -f ${1} \ arch/${ARCH}/boot/${2} # # Step 8: Sign the image and add public key to U-Boot dtb # if [ "x${UBOOT_SIGN_ENABLE}" = "x1" ] ; then add_key_to_u_boot="" if [ -n "${UBOOT_DTB_BINARY}" ]; then # The u-boot.dtb is a symlink to UBOOT_DTB_IMAGE, so we need copy # both of them, and don't dereference the symlink. cp -P ${STAGING_DATADIR}/u-boot*.dtb ${B} add_key_to_u_boot="-K ${B}/${UBOOT_DTB_BINARY}" fi ${UBOOT_MKIMAGE_SIGN} \ ${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \ -F -k "${UBOOT_SIGN_KEYDIR}" \ $add_key_to_u_boot \ -r arch/${ARCH}/boot/${2} \ ${UBOOT_MKIMAGE_SIGN_ARGS} fi } do_assemble_fitimage() { if echo ${KERNEL_IMAGETYPES} | grep -wq "fitImage"; then cd ${B} fitimage_assemble fit-image.its fitImage fi } addtask assemble_fitimage before do_install after do_compile do_assemble_fitimage_initramfs() { if echo ${KERNEL_IMAGETYPES} | grep -wq "fitImage" && \ test -n "${INITRAMFS_IMAGE}" ; then cd ${B} if [ "${INITRAMFS_IMAGE_BUNDLE}" = "1" ]; then fitimage_assemble fit-image-${INITRAMFS_IMAGE}.its fitImage "" else fitimage_assemble fit-image-${INITRAMFS_IMAGE}.its fitImage-${INITRAMFS_IMAGE} 1 fi fi } addtask assemble_fitimage_initramfs before do_deploy after do_bundle_initramfs addtask generate_rsa_keys before do_assemble_fitimage after do_compile kernel_do_deploy[vardepsexclude] = "DATETIME" kernel_do_deploy_append() { # Update deploy directory if echo ${KERNEL_IMAGETYPES} | grep -wq "fitImage"; then if [ "${INITRAMFS_IMAGE_BUNDLE}" != "1" ]; then echo "Copying fit-image.its source file..." install -m 0644 ${B}/fit-image.its "$deployDir/fitImage-its-${KERNEL_FIT_NAME}.its" ln -snf fitImage-its-${KERNEL_FIT_NAME}.its "$deployDir/fitImage-its-${KERNEL_FIT_LINK_NAME}" echo "Copying linux.bin file..." install -m 0644 ${B}/linux.bin $deployDir/fitImage-linux.bin-${KERNEL_FIT_NAME}.bin ln -snf fitImage-linux.bin-${KERNEL_FIT_NAME}.bin "$deployDir/fitImage-linux.bin-${KERNEL_FIT_LINK_NAME}" fi if [ -n "${INITRAMFS_IMAGE}" ]; then echo "Copying fit-image-${INITRAMFS_IMAGE}.its source file..." install -m 0644 ${B}/fit-image-${INITRAMFS_IMAGE}.its "$deployDir/fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.its" ln -snf fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.its "$deployDir/fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_LINK_NAME}" if [ "${INITRAMFS_IMAGE_BUNDLE}" != "1" ]; then echo "Copying fitImage-${INITRAMFS_IMAGE} file..." install -m 0644 ${B}/arch/${ARCH}/boot/fitImage-${INITRAMFS_IMAGE} "$deployDir/fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.bin" ln -snf fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.bin "$deployDir/fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_LINK_NAME}" fi fi fi if [ "${UBOOT_SIGN_ENABLE}" = "1" -o "${UBOOT_FITIMAGE_ENABLE}" = "1" ] && \ [ -n "${UBOOT_DTB_BINARY}" ] ; then # UBOOT_DTB_IMAGE is a realfile, but we can't use # ${UBOOT_DTB_IMAGE} since it contains ${PV} which is aimed # for u-boot, but we are in kernel env now. install -m 0644 ${B}/u-boot-${MACHINE}*.dtb "$deployDir/" fi if [ "${UBOOT_FITIMAGE_ENABLE}" = "1" -a -n "${UBOOT_BINARY}" -a -n "${SPL_DTB_BINARY}" ] ; then # If we're also creating and/or signing the uboot fit, now we need to # deploy it, it's its file, as well as u-boot-spl.dtb install -m 0644 ${B}/u-boot-spl-${MACHINE}*.dtb "$deployDir/" echo "Copying u-boot-fitImage file..." install -m 0644 ${B}/u-boot-fitImage-* "$deployDir/" echo "Copying u-boot-its file..." install -m 0644 ${B}/u-boot-its-* "$deployDir/" fi } # The function below performs the following in case of initramfs bundles: # - Removes do_assemble_fitimage. FIT generation is done through # do_assemble_fitimage_initramfs. do_assemble_fitimage is not needed # and should not be part of the tasks to be executed. # - Since do_generate_rsa_keys is inserted by default # between do_compile and do_assemble_fitimage, this is # not suitable in case of initramfs bundles. do_generate_rsa_keys # should be between do_bundle_initramfs and do_assemble_fitimage_initramfs. python () { if d.getVar('INITRAMFS_IMAGE_BUNDLE') == "1": bb.build.deltask('do_assemble_fitimage', d) bb.build.deltask('generate_rsa_keys', d) bb.build.addtask('generate_rsa_keys', 'do_assemble_fitimage_initramfs', 'do_bundle_initramfs', d) }