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CMakeLists.txt template for ARM GCC projects
cmake_minimum_required(VERSION 3.17)
set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_VERSION 1)
# specify cross compilers and tools
set(CMAKE_C_COMPILER arm-none-eabi-gcc)
set(CMAKE_CXX_COMPILER arm-none-eabi-g++)
set(CMAKE_ASM_COMPILER arm-none-eabi-gcc)
set(CMAKE_AR arm-none-eabi-ar)
set(CMAKE_OBJCOPY arm-none-eabi-objcopy)
set(CMAKE_OBJDUMP arm-none-eabi-objdump)
set(SIZE arm-none-eabi-size)
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
# project settings
project(#[[TODO project name]] C CXX ASM)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_C_STANDARD 11)
set(MCPU #[[TODO kernel type, ex cortex-m4]])
#Uncomment for hardware floating point
#add_compile_definitions(ARM_MATH_CM4;ARM_MATH_MATRIX_CHECK;ARM_MATH_ROUNDING)
#add_compile_options(-mfloat-abi=hard -mfpu=fpv4-sp-d16)
#add_link_options(-mfloat-abi=hard -mfpu=fpv4-sp-d16)
#Uncomment for software floating point
#add_compile_options(-mfloat-abi=soft)
add_compile_options(-mcpu=${MCPU} -mthumb -mthumb-interwork)
add_compile_options(-ffunction-sections -fdata-sections -fno-common -fmessage-length=0)
# uncomment to mitigate c++17 absolute addresses warnings
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-register")
if ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
message(STATUS "Maximum optimization for speed")
add_compile_options(-Ofast)
elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo")
message(STATUS "Maximum optimization for speed, debug info included")
add_compile_options(-Ofast -g)
elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "MinSizeRel")
message(STATUS "Maximum optimization for size")
add_compile_options(-Os)
else ()
message(STATUS "Minimal optimization, debug info included")
add_compile_options(-Og -g)
endif ()
include_directories(
${CMAKE_SOURCE_DIR}/Core/Inc
${CMAKE_SOURCE_DIR}/../Drivers/CMSIS/Include
#[[ TODO rest of include folder locations ex.:
${CMAKE_SOURCE_DIR}/../Drivers/STM32H7xx_HAL_Driver/Inc
${CMAKE_SOURCE_DIR}/../Drivers/STM32H7xx_HAL_Driver/Inc/Legacy
${CMAKE_SOURCE_DIR}/../Drivers/CMSIS/Device/ST/STM32H7xx/Include
]]
)
add_definitions(#[[TODO insert definitions, ex. -DUSE_HAL_DRIVER -DCORE_CM4 -DDEBUG -DSTM32H745xx]])
file(GLOB_RECURSE SOURCES
"Core/*.*" "Core/Startup/*.*"
"Drivers/*.*" "../Drivers/*.*"
"../Common/*.*"
#[[TODO rest of cource locations]]
)
set(LINKER_SCRIPT ${CMAKE_SOURCE_DIR}/#[[TODO linker script name, ex STM32H745ZITX_FLASH.ld]])
add_link_options(-Wl,-gc-sections,--print-memory-usage,-Map=${PROJECT_BINARY_DIR}/${PROJECT_NAME}.map)
add_link_options(-mcpu=${MCPU} -mthumb -mthumb-interwork)
add_link_options(-T ${LINKER_SCRIPT})
add_executable(${PROJECT_NAME}.elf ${SOURCES} ${LINKER_SCRIPT})
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}
COMMENT "Building ${HEX_FILE}
Building ${BIN_FILE}")
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