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poky/meta/classes/kernel-fitimage.bbclass
Richard Purdie ff525695f2 classes: Add SPDX license identifiers
As stated in our top level license files, the license is MIT unless
otherwise stated. Add SPDX identifers accordingly. Replace older
license statementa with the standardised syntax. Also drop "All
Rights Reserved" expression as it isn't used now, doesn't mean anything
and is confusing.

(From OE-Core rev: 081a391fe09a21265881e39a2a496e4e10b4f80b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2022-08-12 11:58:01 +01:00

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#
# Copyright OpenEmbedded Contributors
#
# SPDX-License-Identifier: MIT
#
inherit kernel-uboot kernel-artifact-names uboot-sign
def get_fit_replacement_type(d):
kerneltypes = d.getVar('KERNEL_IMAGETYPES') or ""
replacementtype = ""
if 'fitImage' in kerneltypes.split():
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"
return replacementtype
KERNEL_IMAGETYPE_REPLACEMENT ?= "${@get_fit_replacement_type(d)}"
DEPENDS:append = " ${@'u-boot-tools-native dtc-native' if 'fitImage' in (d.getVar('KERNEL_IMAGETYPES') or '').split() else ''}"
python __anonymous () {
# 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', d.getVar('KERNEL_IMAGETYPE_REPLACEMENT')))
image = d.getVar('INITRAMFS_IMAGE')
if image:
d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_image_complete')
ubootenv = d.getVar('UBOOT_ENV')
if ubootenv:
d.appendVarFlag('do_assemble_fitimage', 'depends', ' virtual/bootloader:do_populate_sysroot')
#check if there are any dtb providers
providerdtb = d.getVar("PREFERRED_PROVIDER_virtual/dtb")
if providerdtb:
d.appendVarFlag('do_assemble_fitimage', 'depends', ' virtual/dtb:do_populate_sysroot')
d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' virtual/dtb:do_populate_sysroot')
d.setVar('EXTERNAL_KERNEL_DEVICETREE', "${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"
FIT_CONF_PREFIX ?= "conf-"
FIT_CONF_PREFIX[doc] = "Prefix to use for FIT configuration node name"
FIT_SUPPORTED_INITRAMFS_FSTYPES ?= "cpio.lz4 cpio.lzo cpio.lzma cpio.xz cpio.zst cpio.gz ext2.gz cpio"
# Keys used to sign individually image nodes.
# The keys to sign image nodes must be different from those used to sign
# configuration nodes, otherwise the "required" property, from
# UBOOT_DTB_BINARY, will be set to "conf", because "conf" prevails on "image".
# Then the images signature checking will not be mandatory and no error will be
# raised in case of failure.
# UBOOT_SIGN_IMG_KEYNAME = "dev2" # keys name in keydir (eg. "dev2.crt", "dev2.key")
#
# 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_IMG_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/("$3");
type = "${UBOOT_MKIMAGE_KERNEL_TYPE}";
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_IMG_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_IMG_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_IMG_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="${FIT_SIGN_ALG}"
conf_padding_algo="${FIT_PAD_ALG}"
if [ "${UBOOT_SIGN_ENABLE}" = "1" ] ; then
conf_sign_keyname="${UBOOT_SIGN_KEYNAME}"
fi
its_file="$1"
kernel_id="$2"
dtb_image="$3"
ramdisk_id="$4"
bootscr_id="$5"
config_id="$6"
default_flag="$7"
# Test if we have any DTBs at all
sep=""
conf_desc=""
conf_node="${FIT_CONF_PREFIX}"
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 "$dtb_image" ]; then
default_line="default = \"${FIT_CONF_PREFIX}$dtb_image\";"
else
default_line="default = \"${FIT_CONF_PREFIX}$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 [ -n "$conf_sign_keyname" ] ; then
sign_line="sign-images = "
sep=""
if [ -n "$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";
padding = "$conf_padding_algo";
$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/$2
if [ -n "${UBOOT_SIGN_IMG_KEYNAME}" -a "${UBOOT_SIGN_KEYNAME}" = "${UBOOT_SIGN_IMG_KEYNAME}" ]; then
bbfatal "Keys used to sign images and configuration nodes must be different."
fi
fitimage_emit_fit_header $1
#
# Step 1: Prepare a kernel image section.
#
fitimage_emit_section_maint $1 imagestart
uboot_prep_kimage
fitimage_emit_section_kernel $1 $kernelcount linux.bin "$linux_comp"
#
# 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
found=
for img in ${FIT_SUPPORTED_INITRAMFS_FSTYPES}; do
initramfs_path="${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.$img"
if [ -e "$initramfs_path" ]; then
bbnote "Found initramfs image: $initramfs_path"
found=true
fitimage_emit_section_ramdisk $1 "$ramdiskcount" "$initramfs_path"
break
else
bbnote "Did not find initramfs image: $initramfs_path"
fi
done
if [ -z "$found" ]; then
bbfatal "Could not find a valid initramfs type for ${INITRAMFS_IMAGE_NAME}, the supported types are: ${FIT_SUPPORTED_INITRAMFS_FSTYPES}"
fi
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-${INITRAMFS_IMAGE} 1
fi
fi
}
addtask assemble_fitimage_initramfs before do_deploy after do_bundle_initramfs
do_kernel_generate_rsa_keys() {
if [ "${UBOOT_SIGN_ENABLE}" = "0" ] && [ "${FIT_GENERATE_KEYS}" = "1" ]; then
bbwarn "FIT_GENERATE_KEYS is set to 1 even though UBOOT_SIGN_ENABLE is set to 0. The keys will not be generated as they won't be used."
fi
if [ "${UBOOT_SIGN_ENABLE}" = "1" ] && [ "${FIT_GENERATE_KEYS}" = "1" ]; then
# Generate keys to sign configuration nodes, only if they don't already exist
if [ ! -f "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key ] || \
[ ! -f "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".crt ]; then
# make directory if it does not already exist
mkdir -p "${UBOOT_SIGN_KEYDIR}"
bbnote "Generating RSA private key for signing fitImage"
openssl genrsa ${FIT_KEY_GENRSA_ARGS} -out \
"${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key \
"${FIT_SIGN_NUMBITS}"
bbnote "Generating certificate for signing fitImage"
openssl req ${FIT_KEY_REQ_ARGS} "${FIT_KEY_SIGN_PKCS}" \
-key "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key \
-out "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".crt
fi
# Generate keys to sign image nodes, only if they don't already exist
if [ ! -f "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_IMG_KEYNAME}".key ] || \
[ ! -f "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_IMG_KEYNAME}".crt ]; then
# make directory if it does not already exist
mkdir -p "${UBOOT_SIGN_KEYDIR}"
bbnote "Generating RSA private key for signing fitImage"
openssl genrsa ${FIT_KEY_GENRSA_ARGS} -out \
"${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_IMG_KEYNAME}".key \
"${FIT_SIGN_NUMBITS}"
bbnote "Generating certificate for signing fitImage"
openssl req ${FIT_KEY_REQ_ARGS} "${FIT_KEY_SIGN_PKCS}" \
-key "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_IMG_KEYNAME}".key \
-out "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_IMG_KEYNAME}".crt
fi
fi
}
addtask kernel_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
bbnote "Copying fit-image.its source file..."
install -m 0644 ${B}/fit-image.its "$deployDir/fitImage-its-${KERNEL_FIT_NAME}.its"
if [ -n "${KERNEL_FIT_LINK_NAME}" ] ; then
ln -snf fitImage-its-${KERNEL_FIT_NAME}.its "$deployDir/fitImage-its-${KERNEL_FIT_LINK_NAME}"
fi
bbnote "Copying linux.bin file..."
install -m 0644 ${B}/linux.bin $deployDir/fitImage-linux.bin-${KERNEL_FIT_NAME}${KERNEL_FIT_BIN_EXT}
if [ -n "${KERNEL_FIT_LINK_NAME}" ] ; then
ln -snf fitImage-linux.bin-${KERNEL_FIT_NAME}${KERNEL_FIT_BIN_EXT} "$deployDir/fitImage-linux.bin-${KERNEL_FIT_LINK_NAME}"
fi
fi
if [ -n "${INITRAMFS_IMAGE}" ]; then
bbnote "Copying fit-image-${INITRAMFS_IMAGE}.its source file..."
install -m 0644 ${B}/fit-image-${INITRAMFS_IMAGE}.its "$deployDir/fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.its"
if [ -n "${KERNEL_FIT_LINK_NAME}" ] ; then
ln -snf fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.its "$deployDir/fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_LINK_NAME}"
fi
if [ "${INITRAMFS_IMAGE_BUNDLE}" != "1" ]; then
bbnote "Copying fitImage-${INITRAMFS_IMAGE} file..."
install -m 0644 ${B}/arch/${ARCH}/boot/fitImage-${INITRAMFS_IMAGE} "$deployDir/fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}${KERNEL_FIT_BIN_EXT}"
if [ -n "${KERNEL_FIT_LINK_NAME}" ] ; then
ln -snf fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}${KERNEL_FIT_BIN_EXT} "$deployDir/fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_LINK_NAME}"
fi
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/"
bbnote "Copying u-boot-fitImage file..."
install -m 0644 ${B}/u-boot-fitImage-* "$deployDir/"
bbnote "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_kernel_generate_rsa_keys is inserted by default
# between do_compile and do_assemble_fitimage, this is
# not suitable in case of initramfs bundles. do_kernel_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('kernel_generate_rsa_keys', d)
bb.build.addtask('kernel_generate_rsa_keys', 'do_assemble_fitimage_initramfs', 'do_bundle_initramfs', d)
}