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-rw-r--r--Documentation/dev-tools/kunit/running_tips.rst18
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst
index 766f9cdea0..bd689db6fd 100644
--- a/Documentation/dev-tools/kunit/running_tips.rst
+++ b/Documentation/dev-tools/kunit/running_tips.rst
@@ -139,6 +139,17 @@ If your installed version of gcc doesn't work, you can tweak the steps:
$ ./tools/testing/kunit/kunit.py run --make_options=CC=/usr/bin/gcc-6
$ lcov -t "my_kunit_tests" -o coverage.info -c -d .kunit/ --gcov-tool=/usr/bin/gcov-6
+Alternatively, LLVM-based toolchains can also be used:
+
+.. code-block:: bash
+
+ # Build with LLVM and append coverage options to the current config
+ $ ./tools/testing/kunit/kunit.py run --make_options LLVM=1 --kunitconfig=.kunit/ --kunitconfig=tools/testing/kunit/configs/coverage_uml.config
+ $ llvm-profdata merge -sparse default.profraw -o default.profdata
+ $ llvm-cov export --format=lcov .kunit/vmlinux -instr-profile default.profdata > coverage.info
+ # The coverage.info file is in lcov-compatible format and it can be used to e.g. generate HTML report
+ $ genhtml -o /tmp/coverage_html coverage.info
+
Running tests manually
======================
@@ -428,3 +439,10 @@ This attribute indicates the name of the module associated with the test.
This attribute is automatically saved as a string and is printed for each suite.
Tests can also be filtered using this attribute.
+
+``is_init``
+
+This attribute indicates whether the test uses init data or functions.
+
+This attribute is automatically saved as a boolean and tests can also be
+filtered using this attribute.