make-boot-chv.sh

#!/bin/sh

ARCH=x86_64

# Extract boot parameters from an existing boot.img if availavle
if [ -e $ANDROID_PRODUCT_OUT/boot.img ];
then
  OLD_PARAMS=`strings $ANDROID_PRODUCT_OUT/boot.img | head -2 | tail -1`

  # The boot hardware should match our target product
  # If it doesn't we don't use the params
  OLD_HW=`echo "$OLD_PARAMS" | grep "androidboot.hardware=" | sed 's/^.*androidboot.hardware=\(.[^ $]*\).*$/\1/'`
  if [ "${OLD_HW}" = "${TARGET_PRODUCT}" ] || [ "${OLD_HW}" = cht_rvp ] ;
  then
    echo "Old boot image specifies kernel parms: $OLD_PARAMS" 
    BOOT_PARAMS="$OLD_PARAMS"
  else
    echo "No boot parameters found in existing $ANDROID_PRODUCT_OUT/boot.img"
    echo "Please rebuild the boot image from scratch (e.g. \"make bootimage\")"
    exit
  fi
else
  echo "No existing boot image found at $ANDROID_PRODUCT_OUT/boot.img"
  echo "Please rebuild the boot image from scratch (e.g. \"make bootimage\")"
  exit
fi

#if [ "$DRM_DEBUG" != "" ];
#then
  BOOT_PARAMS="${BOOT_PARAMS} loglevel=7 drm.debug=0xe"
#fi

echo
echo "Building boot image with kernel params: ${BOOT_PARAMS}..."
$ANDROID_HOST_OUT/bin/mkbootimg --kernel $ANDROID_BUILD_TOP/device/intel/cht-kernel/x86_64/bzImage --ramdisk $ANDROID_PRODUCT_OUT/ramdisk.img --cmdline "$BOOT_PARAMS" --output boot.img

echo
echo "Now install the new boot image with \"fastboot flash boot boot.img\""