CMakeLists.txt

# set this will supress some warnings
set(BUILDING_SDK "yes" CACHE INTERNAL "")

# basic config
if (NOT TOOLCHAIN)
    message(FATAL_ERROR "TOOLCHAIN  not set, use ${TOOLCHAIN} as TOOLCHAIN. Also, you can set it manually. e.g. -DTOOLCHAIN=/opt/gcc-arm-none-eabi-8.2/bin ")
endif()

if (NOT PROJ)
    execute_process(COMMAND mkdir -p ../examples/Blink)
    message(FATAL_ERROR "PROJ not set, use ${PROJ} as PROJ. Also, you can set it manually. e.g. -DPROJ=Blink")
endif ()

if (NOT BOARD)
    message(FATAL_ERROR "BOARD not set, use ${BOARD} as BOARD. Also, you can set it manually. e.g. -DBOARD=arch_mix")
endif ()


cmake_minimum_required(VERSION 3.0)
include(${CMAKE_CURRENT_SOURCE_DIR}/tools/cmake/common.cmake)
project(${PROJ} C CXX ASM)

# config self use headers
include(${CMAKE_CURRENT_SOURCE_DIR}/tools/cmake/macros.internal.cmake)
header_directories(${CMAKE_CURRENT_SOURCE_DIR}/core/arduino)
header_directories(${CMAKE_CURRENT_SOURCE_DIR}/libraries/SPI)
header_directories(${CMAKE_CURRENT_SOURCE_DIR}/libraries/Wire)
header_directories(${CMAKE_CURRENT_SOURCE_DIR}/variants/${BOARD})
header_directories(${CMAKE_CURRENT_SOURCE_DIR}/examples/${PROJ})

# build library first
add_source_files(${CMAKE_CURRENT_SOURCE_DIR}/libraries/SPI/*.cpp)
add_source_files(${CMAKE_CURRENT_SOURCE_DIR}/libraries/Wire/*.cpp)

FILE(GLOB_RECURSE PROJ_LIB_SRC_INO
    "${CMAKE_CURRENT_SOURCE_DIR}/examples/${PROJ}/*.ino"
    )
SET_PROPERTY(SOURCE ${PROJ_LIB_SRC_INO} PROPERTY LANGUAGE CXX)
SET_SOURCE_FILES_PROPERTIES(${PROJ_LIB_SRC_INO} PROPERTIES COMPILE_FLAGS "-x c++")

# compile project
add_source_files(examples/${PROJ}/*.c examples/${PROJ}/*.s examples/${PROJ}/*.S examples/${PROJ}/*.cpp)

FILE(GLOB_RECURSE ASSEMBLY_FILES
    "${CMAKE_CURRENT_SOURCE_DIR}/variants/${BOARD}/*.s"
    "${CMAKE_CURRENT_SOURCE_DIR}/variants/${BOARD}/*.S"
    )

add_source_files(${CMAKE_CURRENT_SOURCE_DIR}/variants/${BOARD}/variant.c)

            
SET_PROPERTY(SOURCE ${ASSEMBLY_FILES} PROPERTY LANGUAGE C)
SET_SOURCE_FILES_PROPERTIES(${ASSEMBLY_FILES} PROPERTIES COMPILE_FLAGS "-x assembler-with-cpp")


include(${CMAKE_CURRENT_SOURCE_DIR}/sdk.cmake)
include(${CMAKE_CURRENT_SOURCE_DIR}/tools/cmake/executable.cmake)

target_sources(${PROJECT_NAME} PUBLIC 
            ${PROJ_LIB_SRC_INO}
            ${ASSEMBLY_FILES} 
)