perf/hw_breakpoint: Add KUnit test for constraints accounting

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Add KUnit test for hw_breakpoint constraints accounting, with various
interesting mixes of breakpoint targets (some care was taken to catch
interesting corner cases via bug-injection).

The test cannot be built as a module because it requires access to
hw_breakpoint_slots(), which is not inlinable or exported on all
architectures.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20220829124719.675715-2-elver@google.com

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Marco Elver 2022-08-29 14:47:06 +02:00 • committed by Peter Zijlstra

parent f4054e5225

commit 724c299c6a

3 changed files with 334 additions and 0 deletions

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lib/Kconfig.debug

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