```
# Kernel type, e.g. "linux", "liteos_a", "liteos_m".
kernel_type = "liteos_m"
# Kernel version.
kernel_version = ""
# Board CPU type, e.g. "cortex-a7", "riscv32".
board_cpu = "cortex-m4"
# Board arch, e.g. "armv7-a", "rv32imac".
board_arch = ""
# Toolchain name used for system compiling.
# E.g. gcc-arm-none-eabi, arm-linux-harmonyeabi-gcc, ohos-clang, riscv32-unknown-elf.
# Note: The default toolchain is "ohos-clang". It's not mandatory if you use the default toochain.
board_toolchain = "arm-none-eabi-gcc"
# The toolchain path instatlled, it's not mandatory if you have added toolchian path to your ~/.bashrc.
board_toolchain_path = ""
# Compiler prefix.
board_toolchain_prefix = "arm-none-eabi-"
# Compiler type, "gcc" or "clang".
board_toolchain_type = "gcc"
# Board related common compile flags.
board_cflags = []
board_cxx_flags = board_cflags
board_ld_flags = []
# Board related headfiles search path.
board_include_dirs = []
# Board adapter dir for OHOS components.
board_adapter_dir =""
```