classes/n2100-image.bbclass

   1 DEPENDS += "openssl-native"
   2 EXTRA_IMAGECMD = "--little-endian"
   3 ERASEBLOCK_SIZE = "0x20000"
   4 IMAGE_FSTYPES = "jffs2"
   5 IMAGE_POSTPROCESS_COMMAND += '${MACHINE}_pack_image;'
   6
   7 n2100_pack_image() {
   8         # find latest kernel
   9         KERNEL=`ls -tr ${DEPLOY_DIR_IMAGE}/zImage* | tail -1`
  10         if [ -z "$KERNEL" ]; then
  11                 oefatal "No kernel found in ${DEPLOY_DIR_IMAGE}. Bitbake linux to create one."
  12                 exit 1
  13         fi
  14         ROOTFS=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.jffs2
  15         OUTPUT=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.flash.img
  16         PADFILE=${DEPLOY_DIR_IMAGE}/padfile.zzz
  17         HEX_MAX_KERN_SIZE=1C0000
  18         DEC_MAX_KERN_SIZE=`echo "ibase=16; $HEX_MAX_KERN_SIZE" | bc `
  19         HEX_MAX_ROOT_SIZE=DC0000
  20         DEC_MAX_ROOT_SIZE=`echo "ibase=16; $HEX_MAX_ROOT_SIZE" | bc `
  21         KERNEL_SIZE=`ls -l $KERNEL | awk '{print $5}'`
  22         if [ $KERNEL_SIZE -gt $DEC_MAX_KERN_SIZE ]; then
  23                 oefatal "Kernel too large at $KERNEL_SIZE bytes.  Max is $DEC_MAX_KERN_SIZE."
  24                 exit 1
  25         fi
  26         ROOT_SIZE=`ls -l $ROOTFS | awk '{print $5}'`
  27         if [ $ROOT_SIZE -gt $DEC_MAX_ROOT_SIZE ]; then
  28                 oefatal "Rootfs is too large at $ROOT_SIZE bytes.  Max is $DEC_MAX_ROOT_SIZE."
  29                 exit 1
  30         fi
  31         PAD_SIZE=`echo "$DEC_MAX_KERN_SIZE - $KERNEL_SIZE" | bc `
  32         dd if=/dev/zero of=$PADFILE bs=$PAD_SIZE count=1 2>>/dev/null
  33         cat $KERNEL $PADFILE $ROOTFS > $OUTPUT
  34         rm -f $PADFILE
  35         ls -l $OUTPUT
  36 }