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set(CMAKE_SYSTEM_NAME              Generic)
set(CMAKE_SYSTEM_PROCESSOR         ARM)

set(CMAKE_C_COMPILER               arm-none-eabi-gcc)
set(CMAKE_CXX_COMPILER             arm-none-eabi-g++)
set(CMAKE_ASM_COMPILER             arm-none-eabi-as)
set(CMAKE_RANLIB                   arm-none-eabi-ranlib)

execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE COMPILER_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)

set(COMMON_C_FLAGS                 "-mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -mthumb -fdata-sections -ffunction-sections")

set(CMAKE_C_FLAGS_INIT             "${COMMON_C_FLAGS} -std=c99")
set(CMAKE_CXX_FLAGS_INIT           "${COMMON_C_FLAGS} -fno-exceptions -fno-rtti")
set(CMAKE_EXE_LINKER_FLAGS_INIT    "${COMMON_C_FLAGS} -specs=nano.specs -specs=nosys.specs")

set(CMAKE_C_FLAGS_DEBUG            "-Og -g")
set(CMAKE_CXX_FLAGS_DEBUG          "-Og -g")
set(CMAKE_ASM_FLAGS_DEBUG          "-g")

set(CMAKE_C_FLAGS_RELEASE          "-Os")
set(CMAKE_CXX_FLAGS_RELEASE        "-Os")
set(CMAKE_ASM_FLAGS_RELEASE        "")