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docs: rust: Add instructions for the Rust kselftest
Add section describing how to build and run the Rust kselftest. Signed-off-by: Laura Nao <laura.nao@collabora.com> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Reviewed-by: Valentin Obst <kernel@valentinobst.de> Link: https://lore.kernel.org/r/20240405153841.320459-1-laura.nao@collabora.com [ Formatted paths as inline code literals. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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@ -6,10 +6,11 @@ Testing
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This document contains useful information how to test the Rust code in the
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This document contains useful information how to test the Rust code in the
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kernel.
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kernel.
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There are two sorts of tests:
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There are three sorts of tests:
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- The KUnit tests.
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- The KUnit tests.
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- The ``#[test]`` tests.
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- The ``#[test]`` tests.
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- The Kselftests.
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The KUnit tests
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The KUnit tests
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---------------
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---------------
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@ -133,3 +134,25 @@ Additionally, there are the ``#[test]`` tests. These can be run using the
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This requires the kernel ``.config`` and downloads external repositories. It
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This requires the kernel ``.config`` and downloads external repositories. It
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runs the ``#[test]`` tests on the host (currently) and thus is fairly limited in
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runs the ``#[test]`` tests on the host (currently) and thus is fairly limited in
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what these tests can test.
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what these tests can test.
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The Kselftests
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--------------
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Kselftests are also available in the ``tools/testing/selftests/rust`` folder.
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The kernel config options required for the tests are listed in the
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``tools/testing/selftests/rust/config`` file and can be included with the aid
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of the ``merge_config.sh`` script::
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./scripts/kconfig/merge_config.sh .config tools/testing/selftests/rust/config
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The kselftests are built within the kernel source tree and are intended to
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be executed on a system that is running the same kernel.
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Once a kernel matching the source tree has been installed and booted, the
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tests can be compiled and executed using the following command::
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make TARGETS="rust" kselftest
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Refer to Documentation/dev-tools/kselftest.rst for the general Kselftest
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documentation.
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