cmake_minimum_required(VERSION 3.10)
set(PROJ_NAME "test")
set(BIN_FILE ${PROJ_NAME}.bin)
set(ASM_FILE ${PROJ_NAME}.asm)
project(${PROJ_NAME} VERSION 0.1)

# toolchain path
set(TOOLCHAIN "arm-none-eabi-")
set(CMAKE_C_COMPILER "${TOOLCHAIN}gcc")
set(CMAKE_ASM_COMPILER "${TOOLCHAIN}gcc")
set(CMAKE_OBJCOPY "${TOOLCHAIN}objcopy")
set(CMAKE_OBJDUMP "${TOOLCHAIN}objdump")
set(CMAKE_AR "${TOOLCHAIN}ar")
set(CMAKE_RANLIB "${TOOLCHAIN}ranlib")
set(LINKER_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/flash.ld")

set(MCU_FLAGS "-mcpu=cortex-m4 -mthumb -g -O2 -Wall -nostartfiles -mfloat-abi=hard -mfpu=vfpv4-d16 -ffunction-sections -fdata-sections")
set(CMAKE_C_FLAGS "${MCU_FLAGS}")
set(CMAKE_ASM_FLAGS "${MCU_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${MCU_FLAGS} -T${LINKER_SCRIPT} -Wl,-Map=test.map")

add_definitions(-DSTM32F40_41xxx)
add_definitions(-DUSE_STDPERIPH_DRIVER)

enable_language(ASM)
add_executable(${PROJ_NAME}.elf main.c)
target_sources(${PROJ_NAME}.elf PUBLIC start.S)

add_subdirectory(../driver driver)
target_link_libraries(${PROJ_NAME}.elf driver)
target_include_directories(${PROJ_NAME}.elf PUBLIC ../driver/stddriver/inc)
target_include_directories(${PROJ_NAME}.elf PUBLIC ../driver/cmsis/inc)

add_subdirectory(src src)
target_link_libraries(${PROJ_NAME}.elf src)
target_include_directories(${PROJ_NAME}.elf PUBLIC src)

target_link_libraries(${PROJ_NAME}.elf m) # math library

add_custom_command(TARGET ${PROJ_NAME}.elf POST_BUILD
    COMMAND ${CMAKE_OBJCOPY} -Obinary $<TARGET_FILE:${PROJ_NAME}.elf> ${BIN_FILE}
    COMMAND ${CMAKE_OBJDUMP} -d -S $<TARGET_FILE:${PROJ_NAME}.elf> >${ASM_FILE}
    COMMENT "Generate ${BIN_FILE}\r\n"
)