Once you make a debug build, you can run a debugger, such as gdb or lldb on it. The initialize response includes an additional field named cmakeVersion which specifies the version of CMake being debugged. CMake exposes a debugging interface on the pipe named by -debugger-pipe that conforms to the Debug Adapter Protocol specification with the following modifications. Quick debugging can be started using the CMake: Debug Target command from the command pallette, or by pressing the associated hotkey (the default is Ctrl+F5 ). There are distinct flags for this mode (variables ending in _DEBUG as opposed to _RELEASE), as well as a generator expression value CONFIG:Debug or CONFIG:Release. Enables interactive debugging of the CMake language. In multi-configuration generators, like many IDEs, you can pick the configuration in the IDE. This variable can be populated with a list of properties to generate debug output for when evaluating target. Expected: Run CMake Configuration The result: cmake Configuring done cmake CMake Deprecation Warning: cmake The cmake-server(7) is deprecated. Building in debug modeįor single-configuration generators, you can build your code with -DCMAKE_BUILD_TYPE=Debug to get debugging flags. Enables tracing output for target properties. Can’t make the Visual Studio Code debugger work. If you add -trace-expand, the variables will be expanded into their values. There are related options as well, but they tend to bury you in output.įor example: cmake -S. Every line run in the file that you give will be echoed to the screen when it is run, letting you follow exactly what is happening. Have you wanted to watch exactly what happens in your CMake file, and when? The -trace-source="filename" feature is fantastic. If you want to print out a property, this is much, much nicer! Instead of getting the properties one by one of of each target (or other item with properties, such as SOURCES, DIRECTORIES, TESTS, or CACHE_ENTRIES - global properties seem to be missing for some reason), you can simply list them and get them printed directly: cmake_print_properties( However, a built in module makes this even easier: include(CMakePrintHelpers) The time honored method of print statements looks like this in CMake: message(STATUS "MY_VARIABLE=$") Go to properties > Application, and select the output type of your project. CMake debuggingįirst, let's look at ways to debug a CMakeLists or other CMake file. Make sure that output path of project is correct (Project > Properties > Build > Output path) Go in menu to Build > Configuration Manager, and check if your main/entry project has checked Build. Using the explicit cache with the -mount flag keeps the contents of the target directory preserved between. You might need to debug your CMake build, or debug your C++ code. Test and debug Continuous integration CLI.
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