Re: [PATCH 2/7] selftests: optionally record per-suite build and install results

[Shuah Khan <skhan@linuxfoundation.org>]

On 10/14/26 14:01, Sasha Levin wrote:
> By default the selftests build and installation succeed as long as one
> target succeeds, so that a single broken suite does not cost CI systems
> the coverage of all others; commit cad6f32665cb ("selftests: Deescalate
> error reporting") restored that policy after it had been tightened.
> The exit status of make therefore cannot tell which suites failed, and
> inspecting the installation is not reliable either: a suite whose
> compilation failed can still install its scripts.
> 
> Add an opt-in report. When KSFT_BUILD_REPORT names an absolute file,
> the all and install rules append one tab-separated record per target
> with the phase, the target name and the exit status of its recursive
> make. Generating the runlist is recorded as part of the install phase.
> The records are written without changing which targets are built or
> installed or the exit status of make, also with FORCE_TARGETS. Nothing
> is recorded by make -n, -t or -q, including when the selftests are
> built through the kernel's kselftest targets, which clear MAKEFLAGS.
> 
> The recording helper lives in a small fragment so that suites built
> from subdirectories can add records for them, and the variable is
> exported to sub-makes. A relative path is rejected, since every
> recursive make runs in a different directory. Keep the exit status of
> the runlist generation loop as before, and create an empty runlist for
> installations in which no target emits tests.
> 
> Document the format, version 1, and how to read it.
> 
> Link: https://lore.kernel.org/r/20260416-selftests-deescalate-error-reporting-v1-1-38e7c0536227@kernel.org
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>   Documentation/dev-tools/kselftest.rst   | 38 +++++++++++++++++++++++++
>   tools/testing/selftests/Makefile        | 31 ++++++++++++++------
>   tools/testing/selftests/build_report.mk | 26 +++++++++++++++++
>   3 files changed, 87 insertions(+), 8 deletions(-)
>   create mode 100644 tools/testing/selftests/build_report.mk
> 

I picked this up for the next merge window. Patch is in kselftest next.

thanks,
-- Shuah