Re: [PATCH v2 01/11] perf scripts: Add a coverage harness for perf

[sashiko-bot@kernel.org]

> From: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> Build perf with clang source based coverage, run the complete perf test
> suite, merge the raw profiles and report line and function coverage for
> perf, optionally against a baseline.  This is pahole's
> coverage/coverage.sh + coverage-diff.sh merged into one script, wired as
> 'make -C tools/perf coverage' and listed in 'make help'.
> 
> Without -f the report lists the files with the most uncovered lines,
> which is where new tests should try to get more coverage; -t narrows
> the tests, -f focuses on specific files, --html writes a browsable
> report and --table/-T, also available as 'make -C tools/perf
> coverage-table', prints the last run as an ASCII table with the
> per-file line and function coverage, like pahole's coverage_table.py.
> 
> [ ... ]
> 
> The run above was unprivileged, so tests that need root are skipped or
> fail; the report still points at the gaps.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Sashiko has reviewed this patch and found no issues.

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