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meta-pengwyn/classes/sdcard_image-pengwyn.bbclass

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inherit image_types
#
# Create an image that can be written onto a SD card using dd.
#
# The disk layout used is:
#
# 0 -> IMAGE_ROOTFS_ALIGNMENT - reserved for other data
# IMAGE_ROOTFS_ALIGNMENT -> BOOT_SPACE - bootloader and kernel
# BOOT_SPACE -> SDIMG_SIZE - rootfs
#
# Default Free space = 1.3x
# Use IMAGE_OVERHEAD_FACTOR to add more space
# <--------->
# 2MiB 48MiB SDIMG_ROOTFS
# <-----------------------> <----------> <---------------------->
# ------------------------ ------------ ------------------------
# | IMAGE_ROOTFS_ALIGNMENT | BOOT_SPACE | ROOTFS_SIZE |
# ------------------------ ------------ ------------------------
# ^ ^ ^ ^
# | | | |
# 0 2MiB 2MiB + 48MiB 2MiB + 48Mib + SDIMG_ROOTFS
# This image depends on the rootfs image
IMAGE_TYPEDEP:pengwyn-sdimg = "${SDIMG_ROOTFS_TYPE}"
# Kernel image name
SDIMG_KERNELIMAGE:pengwyn ?= "uImage"
# Boot partition volume id
# Shorten machine name to keep it under 11 characters
# now enforced by mkfs.vfat from dosfstools-4.2
BOOTDD_VOLUME_ID ?= "${@d.getVar('MACHINE')}"
# Boot partition size [in KiB] (will be rounded up to IMAGE_ROOTFS_ALIGNMENT)
BOOT_SPACE ?= "49152"
# Set alignment to 2MB [in KiB]
IMAGE_ROOTFS_ALIGNMENT = "2048"
# Use an uncompressed ext3 by default as rootfs
SDIMG_ROOTFS_TYPE ?= "ext4"
SDIMG_ROOTFS = "${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.${SDIMG_ROOTFS_TYPE}"
# For the names of kernel artifacts
inherit kernel-artifact-names
do_image_sdimg[depends] = " \
parted-native:do_populate_sysroot \
mtools-native:do_populate_sysroot \
dosfstools-native:do_populate_sysroot \
virtual/kernel:do_deploy \
virtual/bootloader:do_deploy \
virtual/dtb:do_deploy \
"
do_image_sdimg[recrdeps] = "do_build"
# SD card image name
SDIMG = "${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.sdimg"
# Additional files and/or directories to be copied into the vfat partition from the IMAGE_ROOTFS.
#FATPAYLOAD ?= ""
# SD card vfat partition image name
#SDIMG_VFAT_DEPLOY ?= "${RPI_USE_U_BOOT}"
#SDIMG_VFAT = "${IMAGE_NAME}.vfat"
#SDIMG_LINK_VFAT = "${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.vfat"
# Specifies the command to create the image file for a specific image type,
# which corresponds to the value set in IMAGE_FSTYPES, (e.g. ext3, btrfs, and so forth).
# When setting this variable, you should use an override for the associated type
IMAGE_CMD:pengwyn-sdimg () {
# Align partitions
BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE} + ${IMAGE_ROOTFS_ALIGNMENT} - 1)
BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE_ALIGNED} - ${BOOT_SPACE_ALIGNED} % ${IMAGE_ROOTFS_ALIGNMENT})
SDIMG_SIZE=$(expr ${IMAGE_ROOTFS_ALIGNMENT} + ${BOOT_SPACE_ALIGNED} + $ROOTFS_SIZE)
echo "Creating filesystem with Boot partition ${BOOT_SPACE_ALIGNED} KiB and RootFS $ROOTFS_SIZE KiB"
# Initialize sdcard image file
dd if=/dev/zero of=${SDIMG} bs=1024 count=0 seek=${SDIMG_SIZE}
# Create partition table
parted -s ${SDIMG} mklabel msdos
# Create boot partition and mark it as bootable
parted -s ${SDIMG} unit KiB mkpart primary fat32 ${IMAGE_ROOTFS_ALIGNMENT} $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT})
parted -s ${SDIMG} set 1 boot on
# Create rootfs partition to the end of disk
parted -s ${SDIMG} -- unit KiB mkpart primary ext2 $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT}) -1s
parted ${SDIMG} print
# Create a vfat image with boot files
BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDIMG} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
echo "SDIMG_SIZE: ${SDIMG_SIZE}"
echo "IMGDEPLOYDIR: ${IMGDEPLOYDIR}"
echo "IMAGE_BOOT_FILES: ${IMAGE_BOOT_FILES}"
echo "DEPLOY_DIR_IMAGE: ${DEPLOY_DIR_IMAGE}"
rm -f ${WORKDIR}/boot.img
mkfs.vfat -F32 -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
for entry in ${IMAGE_BOOT_FILES}; do
if [ $(echo "$entry" | grep -c /) = "0" ] ; then
DEPLOY_FILE="$entry"
DEST_FILENAME="$entry"
else
DEPLOY_FILE="$entry"
DEST_FILENAME="$(echo "$entry" | cut -f2 -d/)"
fi
mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${DEPLOY_FILE} ::${DEST_FILENAME} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${DEPLOY_FILE} into boot.img"
done
# Burn Partitions
dd if=${WORKDIR}/boot.img of=${SDIMG} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
# If SDIMG_ROOTFS_TYPE is a .xz file use xzcat
if echo "${SDIMG_ROOTFS_TYPE}" | egrep -q "*\.xz"
then
xzcat ${SDIMG_ROOTFS} | dd of=${SDIMG} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
else
dd if=${SDIMG_ROOTFS} of=${SDIMG} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
fi
}
#IMAGE_CMD:sdimg () {
# # Align partitions
# BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE} + ${IMAGE_ROOTFS_ALIGNMENT} - 1)
# BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE_ALIGNED} - ${BOOT_SPACE_ALIGNED} % ${IMAGE_ROOTFS_ALIGNMENT})
# SDIMG_SIZE=$(expr ${IMAGE_ROOTFS_ALIGNMENT} + ${BOOT_SPACE_ALIGNED} + $ROOTFS_SIZE)
#
# echo "Creating filesystem with Boot partition ${BOOT_SPACE_ALIGNED} KiB and RootFS $ROOTFS_SIZE KiB"
#
# # Check if we are building with device tree support
# DTS="${@make_dtb_boot_files(d)}"
#
# # Initialize sdcard image file
# dd if=/dev/zero of=${SDIMG} bs=1024 count=0 seek=${SDIMG_SIZE}
#
# # Create partition table
# parted -s ${SDIMG} mklabel msdos
# # Create boot partition and mark it as bootable
# parted -s ${SDIMG} unit KiB mkpart primary fat32 ${IMAGE_ROOTFS_ALIGNMENT} $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT})
# parted -s ${SDIMG} set 1 boot on
# # Create rootfs partition to the end of disk
# parted -s ${SDIMG} -- unit KiB mkpart primary ext2 $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT}) -1s
# parted ${SDIMG} print
#
# # Create a vfat image with boot files
# BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDIMG} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
# rm -f ${WORKDIR}/boot.img
# mkfs.vfat -F32 -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${BOOTFILES_DIR_NAME}/* ::/ || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${BOOTFILES_DIR_NAME}/* into boot.img"
# if [ "${@bb.utils.contains("MACHINE_FEATURES", "armstub", "1", "0", d)}" = "1" ]; then
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/armstubs/${ARMSTUB} ::/ || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/armstubs/${ARMSTUB} into boot.img"
# fi
# if test -n "${DTS}"; then
# # Copy board device trees (including overlays)
# # There is an assumption here - no DTB in other directories than root
# # and root/overlays. mmd/mcopy are not very flexible tools.
# mmd -i ${WORKDIR}/boot.img overlays
# for entry in ${DTS} ; do
# # Split entry at optional ';'
# if [ $(echo "$entry" | grep -c \;) = "0" ] ; then
# DEPLOY_FILE="$entry"
# DEST_FILENAME="$entry"
# else
# DEPLOY_FILE="$(echo "$entry" | cut -f1 -d\;)"
# DEST_FILENAME="$(echo "$entry" | cut -f2- -d\;)"
# fi
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${DEPLOY_FILE} ::${DEST_FILENAME} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${DEPLOY_FILE} into boot.img"
# done
# fi
# if [ "${RPI_USE_U_BOOT}" = "1" ]; then
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/u-boot.bin ::${SDIMG_KERNELIMAGE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/u-boot.bin into boot.img"
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/boot.scr ::boot.scr || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/boot.scr into boot.img"
# if [ ! -z "${INITRAMFS_IMAGE}" -a "${INITRAMFS_IMAGE_BUNDLE}" = "1" ]; then
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${INITRAMFS_LINK_NAME}.bin ::${KERNEL_IMAGETYPE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${INITRAMFS_LINK_NAME}.bin into boot.img"
# else
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} ::${KERNEL_IMAGETYPE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} into boot.img"
# fi
# else
# if [ ! -z "${INITRAMFS_IMAGE}" -a "${INITRAMFS_IMAGE_BUNDLE}" = "1" ]; then
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${INITRAMFS_LINK_NAME}.bin ::${SDIMG_KERNELIMAGE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${INITRAMFS_LINK_NAME}.bin into boot.img"
# else
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} ::${SDIMG_KERNELIMAGE} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} into boot.img"
# fi
# fi
#
# # Add files (eg. hypervisor binaries) from the deploy dir
# if [ -n "${DEPLOYPAYLOAD}" ] ; then
# echo "Copying deploy file payload into VFAT"
# for entry in ${DEPLOYPAYLOAD} ; do
# # Split entry at optional ':' to enable file renaming for the destination
# if [ $(echo "$entry" | grep -c :) = "0" ] ; then
# DEPLOY_FILE="$entry"
# DEST_FILENAME="$entry"
# else
# DEPLOY_FILE="$(echo "$entry" | cut -f1 -d:)"
# DEST_FILENAME="$(echo "$entry" | cut -f2- -d:)"
# fi
# mcopy -v -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${DEPLOY_FILE} ::${DEST_FILENAME} || bbfatal "mcopy cannot copy ${DEPLOY_DIR_IMAGE}/${DEPLOY_FILE} into boot.img"
# done
# fi
#
# if [ -n "${FATPAYLOAD}" ] ; then
# echo "Copying payload into VFAT"
# for entry in ${FATPAYLOAD} ; do
# # use bbwarn instead of bbfatal to stop aborting on vfat issues like not supporting .~lock files
# mcopy -v -i ${WORKDIR}/boot.img -s ${IMAGE_ROOTFS}$entry :: || bbwarn "mcopy cannot copy ${IMAGE_ROOTFS}$entry into boot.img"
# done
# fi
#
# # Add stamp file
# echo "${IMAGE_NAME}" > ${WORKDIR}/image-version-info
# mcopy -v -i ${WORKDIR}/boot.img ${WORKDIR}/image-version-info :: || bbfatal "mcopy cannot copy ${WORKDIR}/image-version-info into boot.img"
#
# # Deploy vfat partition
# if [ "${SDIMG_VFAT_DEPLOY}" = "1" ]; then
# cp ${WORKDIR}/boot.img ${IMGDEPLOYDIR}/${SDIMG_VFAT}
# ln -sf ${SDIMG_VFAT} ${SDIMG_LINK_VFAT}
# fi
#
# # Burn Partitions
# dd if=${WORKDIR}/boot.img of=${SDIMG} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
# # If SDIMG_ROOTFS_TYPE is a .xz file use xzcat
# if echo "${SDIMG_ROOTFS_TYPE}" | egrep -q "*\.xz"
# then
# xzcat ${SDIMG_ROOTFS} | dd of=${SDIMG} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
# else
# dd if=${SDIMG_ROOTFS} of=${SDIMG} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024)
# fi
#}