set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_VERSION 1)
cmake_minimum_required(VERSION 3.20)

# 工具链设置 
set(TOOLPATH  C:/MounRiver/MounRiver_Studio/toolchain/RISC-V\ Embedded\ GCC/bin/riscv-none-embed-)

if (WIN32)
    MESSAGE(STATUS "Now is windows!")
    set(CMAKE_C_COMPILER ${TOOLPATH}gcc.exe)
    set(CMAKE_CXX_COMPILER ${TOOLPATH}g++.exe)
    set(CMAKE_ASM_COMPILER ${TOOLPATH}gcc.exe)
    set(CMAKE_AR ${TOOLPATH}ar.exe)
    set(CMAKE_OBJCOPY ${TOOLPATH}objcopy.exe)
elseif (UNIX)
    MESSAGE(STATUS "Now is UNIX-like OS!")
    set(CMAKE_C_COMPILER ${TOOLPATH}gcc)
    set(CMAKE_CXX_COMPILER ${TOOLPATH}g++)
    set(CMAKE_ASM_COMPILER ${TOOLPATH}gcc)
    set(CMAKE_AR ${TOOLPATH}ar)
    set(CMAKE_OBJCOPY ${TOOLPATH}objcopy)
else ()
    MESSAGE(STATUS "Unsupported system!")
endif ()

set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)

# 项目设置
project(ch582-pika C CXX ASM)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_C_STANDARD 99)

# 编译参数 一般不用改
add_compile_options(-march=rv32imac -mabi=ilp32 -mcmodel=medany -msmall-data-limit=8 -mno-save-restore -std=gnu99)
add_compile_options(-fmessage-length=0 -fsigned-char -ffunction-sections -fdata-sections -fno-common)

# 编译等级
add_compile_options(-Os)

# 宏定义
add_definitions(-DDEBUG=1)

# 头文件路径
include_directories(BLE_LIB 
                    USB_LIB
                    RVMSIS  
                    StdPeriphDriver/inc
                    printf
                    HAL/include
                    pikascript/pikascript-api
                    pikascript/pikascript-core
                    pikascript/pikascript-lib/PikaStdLib
                    pikascript/pikascript-lib/PikaStdDevice
                    pikascript/pikascript-lib/CH582)

# 源码文件
file(GLOB_RECURSE SOURCES 
                "Startup/*.S" 
                "USB_LIB/*.c"
                "RVMSIS/*.c"
                "StdPeriphDriver/*.c" 
                "printf/printf.c"
                "APP/*.c"
                "HAL/*.c"
                "pikascript/pikascript-api/*.c"
                "pikascript/pikascript-core/*.c"
                "pikascript/pikascript-lib/PikaStdLib/*.c"
                "pikascript/pikascript-lib/PikaStdDevice/*.c"
                "pikascript/pikascript-lib/CH582/*.c")


# 链接参数
set(LINKER_SCRIPT  ${CMAKE_SOURCE_DIR}/Ld/Link.ld)
add_link_options(-nostartfiles 
                -Xlinker --gc-sections  
                -Wl,--print-memory-usage
                -Wl,-Map,${PROJECT_NAME}.map 
                --specs=nano.specs 
                --specs=nosys.specs
                -T ${LINKER_SCRIPT})

# 编译可执行文件
add_executable(${PROJECT_NAME}.elf ${SOURCES} ${LINKER_SCRIPT})

# 链接静态库
target_link_libraries(${PROJECT_NAME}.elf 
        ${CMAKE_SOURCE_DIR}/StdPeriphDriver/libISP583.a 
        ${CMAKE_SOURCE_DIR}/BLE_LIB/LIBCH58xBLE.a 
        ${CMAKE_SOURCE_DIR}/USB_LIB/libRV3UFI.a)

# 输出hex和bin
set(HEX_FILE ${PROJECT_BINARY_DIR}/${PROJECT_NAME}.hex)
set(BIN_FILE ${PROJECT_BINARY_DIR}/${PROJECT_NAME}.bin)
add_custom_command(TARGET ${PROJECT_NAME}.elf POST_BUILD
        COMMAND ${CMAKE_OBJCOPY} -Oihex $<TARGET_FILE:${PROJECT_NAME}.elf> ${HEX_FILE}
        COMMAND ${CMAKE_OBJCOPY} -Obinary $<TARGET_FILE:${PROJECT_NAME}.elf> ${BIN_FILE}
)