reproduce (this is a W=1 build):
        git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/rgushchin/linux/commit/de8b6f19951d0f45e4ff55813f6259c3b58b7a0c
        git remote add rgushchin https://github.com/rgushchin/linux.git
        git fetch --no-tags rgushchin sframe_unwinder.rfc
        git checkout de8b6f19951d0f45e4ff55813f6259c3b58b7a0c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-17 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-17 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kernel/