1. ${ROOT_DIR}/build/upstream/build.config.common 2 3ARCH=arm64 4CLANG_TRIPLE=aarch64-linux-gnu- 5CROSS_COMPILE=aarch64-linux-androidkernel- 6DEFCONFIG=defconfig 7LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin 8FILES=" 9arch/arm64/boot/Image.gz 10vmlinux 11System.map 12" 13