Re: [PATCH] perf build: Add MINIMAL=1 to build without optional features

[sashiko-bot@kernel.org]

> Turning off every optional feature takes a long list of NO_* variables,
> and the list has to follow features as they are added and renamed. The
> one in tests/make for make_minimal has fallen behind: it leaves
> libtraceevent, jevents, slang, AIO, LZMA, zlib, libLLVM and Rust to be
> detected, so a make_minimal build still needs libtraceevent and python.
> 
> Add MINIMAL=1, which turns off every optional feature, the BPF
> skeletons, and the shellcheck, mypy and pylint runs. perf then builds,
> natively or cross, with no library beyond the C library and without
> python, pkg-config, clang or rustc, and the result does not depend on
> what is installed on the build machine.
> 
> A MINIMAL=1 build also leaves out the notices that post unwind and
> python support are disabled, which it asked for, and the one about the
> pkg-config search path for cross builds, as pkg-config is not needed
> then.
> 
> It is handled in Makefile.perf rather than Makefile.config, as
> Makefile.config is included after the pkg-config, shellcheck, mypy and
> pylint setup.
> 
> Use it for make_minimal in tests/make.
> 
> Suggested-by: Ian Rogers <irogers@google.com>
> Link: https://lore.kernel.org/r/CAP-5=fWFY-tpJz2vcBZvurwdZY5gwd8cuTemE9q1rtZ0Vi0dng@mail.gmail.com
> Assisted-by: LLM
> Signed-off-by: Sasha Levin <sashal@kernel.org>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261018135321.3986899-1-sashal@kernel.org?part=1