set(CMAKE_TOOLCHAIN_PATH $ENV{TOOLCHAIN} CACHE STRING " " FORCE)
set(CROSS_COMPILE ${CMAKE_TOOLCHAIN_PATH}$ENV{CROSS_COMPILE_NAME} CACHE PATH "" FORCE)
set(GCC_LIB_PATH $ENV{TOOLCHAIN_LIB})

set(CMAKE_INSTALL_PATH "${CMAKE_BINARY_DIR}deploy" CACHE PATH "" FORCE)
set(CMAKE_C_COMPILER "${CROSS_COMPILE}gcc" CACHE PATH "" FORCE)
set(CMAKE_ASM_COMPILER "${CROSS_COMPILE}gcc" CACHE PATH "" FORCE)
set(CMAKE_CC_COMPILER "${CROSS_COMPILE}g++" CACHE PATH "" FORCE)
set(CMAKE_CXX_COMPILER "${CROSS_COMPILE}g++" CACHE PATH "" FORCE)
set(CMAKE_CPP_COMPILER "${CROSS_COMPILE}cpp" CACHE PATH "" FORCE)
set(CMAKE_LINKER "${CROSS_COMPILE}ld" CACHE PATH "" FORCE)
set(CMAKE_STRIP "${CROSS_COMPILE}strip" CACHE PATH "" FORCE)
set(CMAKE_OBJCOPY "${CROSS_COMPILE}objcopy" CACHE PATH "" FORCE)
set(CMAKE_OBJDUMP "${CROSS_COMPILE}objdump" CACHE PATH "" FORCE)
set(CMAKE_READELF "${CROSS_COMPILE}readelf" CACHE PATH "" FORCE)
set(CMAKE_SIZE "${CROSS_COMPILE}size" CACHE PATH "" FORCE)
set(CMAKE_NM "${CROSS_COMPILE}nm" CACHE PATH "" FORCE)
set(CMAKE_AR "${CROSS_COMPILE}ar" CACHE PATH "" FORCE)
set(CMAKE_SIZE "${CROSS_COMPILE}size" CACHE PATH "" FORCE)
set(PROJECT_BINARY_DIR ${CMAKE_SOURCE_DIR}/build)

# set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(BOARD $ENV{BOARD})
include(mkrtos_cmake/top.cmake)
set(ARCH ${CONFIG_ARCH} CACHE STRING "" FORCE)
message(======="ARCH=${ARCH}")
message(======="CPU_TYPE=${CONFIG_CPU_TYPE}")

# -mfloat-abi=soft  -u _printf_float   -lc -lrdimon
#-mfpu=fpv5-sp-d16
if (${CONFIG_ARCH} STREQUAL "cortex-m3" OR 
    ${CONFIG_ARCH} STREQUAL "cortex-m4" OR 
    ${CONFIG_ARCH} STREQUAL "cortex-m33"
    )
    include(armv7_8.cmake)
elseif(${CONFIG_ARCH} STREQUAL "aarch64" )
    include(aarch64.cmake)
    link_directories(${CMAKE_SOURCE_DIR}/build/libc/output/lib)
endif()


set(CMAKE_C_LINK_EXECUTABLE "${CMAKE_LINKER} <OBJECTS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> --start-group <LINK_LIBRARIES> --end-group -o <TARGET>" CACHE INTERNAL " " FORCE)
set(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_LINKER} <OBJECTS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> --start-group <LINK_LIBRARIES> --end-group -o <TARGET>" CACHE INTERNAL " " FORCE)