n2100_pack_image() {
# find latest kernel
KERNEL=`ls -tr ${DEPLOY_DIR_IMAGE}/zImage* | tail -1`
if [ -z "$KERNEL" ]; then
oefatal "No kernel found in ${DEPLOY_DIR_IMAGE}. Bitbake linux to create one."
exit 1
fi
ROOTFS=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.jffs2
OUTPUT=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.flash.img
PADFILE=${DEPLOY_DIR_IMAGE}/padfile.zzz
HEX_MAX_KERN_SIZE=1C0000
DEC_MAX_KERN_SIZE=`echo "ibase=16; $HEX_MAX_KERN_SIZE" | bc `
HEX_MAX_ROOT_SIZE=DC0000
DEC_MAX_ROOT_SIZE=`echo "ibase=16; $HEX_MAX_ROOT_SIZE" | bc `
KERNEL_SIZE=`ls -l $KERNEL | awk '{print $5}'`
if [ $KERNEL_SIZE -gt $DEC_MAX_KERN_SIZE ]; then
oefatal "Kernel too large at $KERNEL_SIZE bytes. Max is $DEC_MAX_KERN_SIZE."
exit 1
fi
ROOT_SIZE=`ls -l $ROOTFS | awk '{print $5}'`
if [ $ROOT_SIZE -gt $DEC_MAX_ROOT_SIZE ]; then
oefatal "Rootfs is too large at $ROOT_SIZE bytes. Max is $DEC_MAX_ROOT_SIZE."
exit 1
fi
PAD_SIZE=`echo "$DEC_MAX_KERN_SIZE - $KERNEL_SIZE" | bc `
dd if=/dev/zero of=$PADFILE bs=$PAD_SIZE count=1 2>>/dev/null
cat $KERNEL $PADFILE $ROOTFS > $OUTPUT
rm -f $PADFILE
ls -l $OUTPUT
}
IMAGE_POSTPROCESS_COMMAND += "n2100_pack_image; "
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