README_Kernel.txt

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 1. How to Build
		- get Toolchain
                From android git serveru, codesourcery and etc ..
                - gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-
                - llvm-arm-toolchain-ship/10.0/bin/clang

        - make output folder 
                EX) OUTPUT_DIR=out
				$ mkdir out

        - edit Makefile
				edit "CROSS_COMPILE" to right toolchain path(You downloaded).
				EX)  CROSS_COMPILE=<android platform directory you download>/android/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-
				Ex)  CROSS_COMPILE=/usr/local/toolchain/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android- // check the location of toolchain
        - to Build
                $ export ARCH=arm64
                $ make -C $(pwd) O=$(pwd)/out P81081_defconfig
                $ make -C $(pwd) O=$(pwd)/out DTC_EXT=$(pwd)/tools/dtc CONFIG_BUILD_ARM64_DT_OVERLAY=y \
				   CC=<android platform directory you download>/android/vendor/qcom/proprietary/llvm-arm-toolchain-ship/10.0/bin/clang \
				   CLANG_TRIPLE=aarch64-linux-gnu-

				
 2. Output files
		- Kernel : arch/arm64/boot/Image
		- module : drivers/*/*.ko

 3. How to Clean
         Change to OUTPUT_DIR folder
         EX) /home/dpi/qb5_8814/workspace/P4_1716/android/out/target/product/gto/out
         $ make clean
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