# CMakeLists.txt — STM32F103 标准库 (SPL V1.4) + Ninja 云端极速编译
# 用法:
#   cmake -B build -G Ninja .    # 配置
#   ninja -C build               # 编译
#   ninja -C build cppcheck      # 静态分析
#   ninja -C build clean         # 清理

cmake_minimum_required(VERSION 3.20)
project(SolarTrackerF103 C ASM)

# ─── 目标芯片 ───
set(MCU cortex-m3)
set(FLOAT_ABI soft)

# ─── 编译标志 ───
set(CMAKE_C_STANDARD 99)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mcpu=${MCU} -mthumb -mfloat-abi=${FLOAT_ABI}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DSTM32F10X_MD -DUSE_STDPERIPH_DRIVER")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Os -ffunction-sections -fdata-sections")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wno-unused-parameter")

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections -Wl,-Map=${PROJECT_NAME}.map")

# ─── 头文件路径（根据实际工程结构调整） ───
include_directories(
    Inc
    Libraries/STM32F10x_StdPeriph_Driver/inc
    Libraries/CMSIS/Device/ST/STM32F10x
    Libraries/CMSIS/Include
)

# ─── 自动收集源文件 ───
file(GLOB_RECURSE SOURCES_C
    Src/*.c
    Libraries/STM32F10x_StdPeriph_Driver/src/*.c
)

# ─── 启动文件（选择正确的启动文件） ───
# F103C8/CB (64KB):  startup_stm32f10x_md.s
# F103VE (512KB):    startup_stm32f10x_hd.s
# F103ZG (1MB):      startup_stm32f10x_xl.s
set(STARTUP_FILE
    Libraries/CMSIS/Device/ST/STM32F10x/startup_stm32f10x_md.s
)

# ─── 链接脚本 ───
set(LINKER_SCRIPT ${CMAKE_SOURCE_DIR}/STM32F103C8Tx_FLASH.ld)
if(NOT EXISTS ${LINKER_SCRIPT})
    message(WARNING "链接脚本 ${LINKER_SCRIPT} 未找到，请确认路径")
endif()

# ─── 可执行目标 ───
add_executable(${PROJECT_NAME}.elf ${SOURCES_C} ${STARTUP_FILE})

target_link_options(${PROJECT_NAME}.elf PRIVATE
    -T ${LINKER_SCRIPT}
    -Wl,--gc-sections
    -Wl,-Map=${PROJECT_NAME}.map
)

# ─── 后处理：生成 .bin 和 .hex ───
add_custom_command(TARGET ${PROJECT_NAME}.elf POST_BUILD
    COMMAND arm-none-eabi-objcopy -O binary ${PROJECT_NAME}.elf ${PROJECT_NAME}.bin
    COMMAND arm-none-eabi-objcopy -O ihex  ${PROJECT_NAME}.elf ${PROJECT_NAME}.hex
    COMMAND ${CMAKE_SIZE} ${PROJECT_NAME}.elf
    COMMENT "生成 .bin / .hex 固件"
)

# ─── 自定义目标：cppcheck 静态分析 ───
find_program(CPPCHECK cppcheck)
if(CPPCHECK)
    add_custom_target(cppcheck
        COMMAND ${CPPCHECK} --enable=all --suppress=missingIncludeSystem
            --suppress=unmatchedSuppression
            ${CMAKE_C_FLAGS}
            ${SOURCES_C}
        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
        COMMENT "运行 cppcheck 静态代码分析"
    )
endif()

# ─── 清理 ───
set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY
    ADDITIONAL_CLEAN_FILES "${PROJECT_NAME}.bin;${PROJECT_NAME}.hex;${PROJECT_NAME}.map")