Configurations in CMakeLists.txt

In the following sections you will learn about several CMake variables and commands that are used in the CMake configuration file for the Hello World Application.

CMake Configuration File Location: <BSW Package>/Examples/amsr-vector-app-example-hello-world/CMakeLists.txt

HWSRC_APP_OUTPUT_NAME

The variable HWSRC_APP_OUTPUT_NAME defines the name of the executable. TACO evaluates variables named <target-upper>_OUTPUT_NAME to deduce the executable name from the target name.

add_subdirectory()

add_subdirectory("${AMSR_SRC_SYMLINK}" "AMSR")

The Vector Embedded Software stack is included as source sub-project. This means that:

  • The Vector Embedded Software stack and the Hello World Application share one build-directory.

  • Both projects can be initialized and built with one CMake command.

  • The CMake files of the Hello World Application can directly reference targets from the Vector Embedded Software stack, find_package() is not needed.

taco_target_properties

The content in these files includes the hello_world subdirectory and makes sure that the MICROSAR Adaptive daemons are build and installed together with the hello world application.

This is for demonstration purposes only. In a real world application you would build your own daemons and provide your own configuration files.

app/hello_world/CMakeLists.txt

The function dvacfg_file_gen() makes sure that the generators for the models are run.

In this example the keyword argument OUTPUT lists generated CMake files instead of source and config files. This has the advantage that you do not need to list each generated file individually. dvacfg_file_gen() also adds the generated files as dependency to the target sources of hwsrc_app.

Reference: For more information, see the TACO Guide in your delivery under <BSW Package>/BuildSystem/TACO/Html/module/FindDvACfg.html

find_package (TACO REQUIRED)

TACO is included with a call to find_package – CMake’s standard mechanism for external packages.

The variable TACO_ROOT is set in CMakePresets.json to the corresponding directory in the MICROSAR Adaptive delivery.

The find_package call automatically sets the correct CMAKE_MODULE_PATH, so that TACO modules can be included and found modules can be referenced later on.