Example CMakeLists.txt

CMake is powerful tool that provides the developer a great deal of flexibility in how their projects are built. As a result, CMakeLists.txt files can accomplish the same function in multiple ways.

Below is an example CMakeLists.txt that shows both required and conventional commands for a basic FreeRTOS project. This example can be used as a starting point for your application, but it is recommended to copy a CMakeLists.txt from an XMOS reference design or other example application that closely resembles your application.

## Specify your application sources by globbing the src folder
file(GLOB_RECURSE APP_SOURCES src/*.c)

## Specify your application include paths
set(APP_INCLUDES src)

## Specify your compiler flags
set(APP_COMPILER_FLAGS
   -Os
   -report
   -fxscope
   -mcmodel=large
   ${CMAKE_CURRENT_SOURCE_DIR}/src/config.xscope
   ${CMAKE_CURRENT_SOURCE_DIR}/XCORE-AI-EXPLORER.xn
)

## Specify any compile definitions
set(APP_COMPILE_DEFINITIONS
   configENABLE_DEBUG_PRINTF=1
   PLATFORM_USES_TILE_0=1
   PLATFORM_USES_TILE_1=1
)

## Set your link libraries
set(APP_LINK_LIBRARIES
   rtos::bsp_config::xcore_ai_explorer
)

## Set your link options
set(APP_LINK_OPTIONS
   -report
   ${CMAKE_CURRENT_SOURCE_DIR}/XCORE-AI-EXPLORER.xn
   ${CMAKE_CURRENT_SOURCE_DIR}/src/config.xscope
)

## Create your targets

## Create the target for the portion of application code that will execute on tile[0]
set(TARGET_NAME tile0_my_app)
add_executable(${TARGET_NAME} EXCLUDE_FROM_ALL)
target_sources(${TARGET_NAME} PUBLIC ${APP_SOURCES})
target_include_directories(${TARGET_NAME} PUBLIC ${APP_INCLUDES})
target_compile_definitions(${TARGET_NAME} PUBLIC ${APP_COMPILE_DEFINITIONS} THIS_XCORE_TILE=0)
target_compile_options(${TARGET_NAME} PRIVATE ${APP_COMPILER_FLAGS})
target_link_libraries(${TARGET_NAME} PUBLIC ${APP_LINK_LIBRARIES})
target_link_options(${TARGET_NAME} PRIVATE ${APP_LINK_OPTIONS})
unset(TARGET_NAME)

## Create the target for the portion of application code that will execute on tile[1]
set(TARGET_NAME tile1_my_app)
add_executable(${TARGET_NAME} EXCLUDE_FROM_ALL)
target_sources(${TARGET_NAME} PUBLIC ${APP_SOURCES})
target_include_directories(${TARGET_NAME} PUBLIC ${APP_INCLUDES})
target_compile_definitions(${TARGET_NAME} PUBLIC ${APP_COMPILE_DEFINITIONS} THIS_XCORE_TILE=1)
target_compile_options(${TARGET_NAME} PRIVATE ${APP_COMPILER_FLAGS})
target_link_libraries(${TARGET_NAME} PUBLIC ${APP_LINK_LIBRARIES})
target_link_libraries(${TARGET_NAME} PRIVATE ${APP_LINK_OPTIONS} )
unset(TARGET_NAME)

## Merge tile[0] and tile[1] binaries into a single binary using an XMOS CMake macro
merge_binaries(my_app tile0_my_app tile1_my_app 1)

## Optionally create run and debug targets using XMOS CMake macros
create_run_target(my_app)
create_debug_target(my_app)

For more information, see the documentation for each of the CMake commands used in the example above.

• set

• add_executable

• target_sources

• target_include_directories

• target_compile_definitions

• target_compile_options

• target_link_libraries

• target_link_options

See Macros for more information on the XMOS CMake macros.