-- 工程名
set_project("stm32h7")

-- 定义工具链
toolchain("arm-none-eabi")
    set_kind("standalone")
    set_sdkdir("/home/time/doc/mybin/arm-none-eabi")
toolchain_end()

-- 使用自定义的 arm-none-eabi 工具链
set_toolchains("arm-none-eabi")

-- 设置平台与架构
set_plat("linux")
set_arch("arm32")

-- 编译优化与调试
set_optimize("none")
set_symbols("debug")

-- 目标程序
target("gpio")
    -- 设置目标类型,编译为可执行文件
    set_kind("binary")
    -- 添加源文件
    add_files("user/src/*.c")
    -- 设置头文件路径
    add_includedirs("user/inc", {public = true})
    -- 设置输出目录
    set_targetdir("$(projectdir)/bin")

    -- 让 elf 文件名跟随 target 名
    on_load(function (target)
        target:set("filename", target:name() .. ".elf")
        -- 同时设置 map 文件输出到 bin
        target:add("ldflags",
            "-Wl,-Map=" .. path.join(target:targetdir(), target:name() .. ".map"),
            {force = true}
        )
    end)

    -- 架构 & FPU
    add_cxflags("-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", {force = true})
    add_asflags("-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", {force = true})
    add_ldflags("-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", {force = true})

    -- 头文件路径 (libopencm3)
    add_includedirs("../../libopencm3/include", {public = true})

    -- 链接 libopencm3
    add_linkdirs("../../libopencm3/lib")
    add_links("opencm3_stm32h7")

    -- 额外链接选项
    add_ldflags("-T./cortex-m-generic.ld", "--static", "-nostartfiles", "-Wl,--gc-sections", {force = true})
    add_syslinks("c", "gcc", "nosys")

    -- 预处理宏
    add_defines("STM32H7")

    -- 生成额外的二进制文件
    after_build(function (target)
        local elf = target:targetfile()
        local bindir = target:targetdir()
        local name = target:name()
        os.execv("arm-none-eabi-objcopy", {"-Obinary", elf, path.join(bindir, name .. ".bin")})
        os.execv("arm-none-eabi-objcopy", {"-Oihex",   elf, path.join(bindir, name .. ".hex")})
        os.execv("arm-none-eabi-objcopy", {"-Osrec",   elf, path.join(bindir, name .. ".srec")})
        os.execv("arm-none-eabi-objdump", {"-S", elf}, {stdout = path.join(bindir, name .. ".list")})
    end)

    -- 自定义清理逻辑
    on_clean(function (target)
        os.rm("build")
        os.rm("bin")
    end)