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| author |   Daniel Latypov <dlatypov@google.com> | 2022-03-25 17:33:56 -0700 |
|---|---|---|
| committer |   Shuah Khan <skhan@linuxfoundation.org> | 2022-04-04 16:42:38 -0600 |
| commit | b04d1a8dc7e7ff7ca91a20bef053bcc04265d83a (patch) | |
| tree | d75a004c169c7b482e223487bfebd6e036d46385 /Documentation/dev-tools | |
| parent | kunit: split resource API impl from test.c into new resource.c (diff) | |
| download | linux-dev-b04d1a8dc7e7ff7ca91a20bef053bcc04265d83a.tar.xz linux-dev-b04d1a8dc7e7ff7ca91a20bef053bcc04265d83a.zip | |
Documentation: kunit: update kconfig options needed for UML coverage
Recent changes have made it so the current set is not sufficient.
Namely, CONFIG_DEBUG_INFO is not being set even when explicitly asked.
Specifying a version of the debug info fixes this.
Pick CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT as an option that's
hopefully less fragile (esp. given we're tied to GCC 6 and lower).
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Tested-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'Documentation/dev-tools')
| -rw-r--r-- | Documentation/dev-tools/kunit/running_tips.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst index 7b6d26a25959..c36f6760087d 100644 --- a/Documentation/dev-tools/kunit/running_tips.rst +++ b/Documentation/dev-tools/kunit/running_tips.rst @@ -114,6 +114,7 @@ Instead of enabling ``CONFIG_GCOV_KERNEL=y``, we can set these options: CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_INFO=y + CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y CONFIG_GCOV=y @@ -122,7 +123,7 @@ Putting it together into a copy-pastable sequence of commands: .. code-block:: bash # Append coverage options to the current config - $ echo -e "CONFIG_DEBUG_KERNEL=y\nCONFIG_DEBUG_INFO=y\nCONFIG_GCOV=y" >> .kunit/.kunitconfig + $ echo -e "CONFIG_DEBUG_KERNEL=y\nCONFIG_DEBUG_INFO=y\nCONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y\nCONFIG_GCOV=y" >> .kunit/.kunitconfig $ ./tools/testing/kunit/kunit.py run # Extract the coverage information from the build dir (.kunit/) $ lcov -t "my_kunit_tests" -o coverage.info -c -d .kunit/ |