perf build: enable -fno-strict-aliasing

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perf pulls in code from kernel headers that assumes it is being built
with -fno-strict-aliasing, namely put_unaligned_*() from
<linux/unaligned.h> which write the data using packed structs that lack
the may_alias attribute.  Enable -fno-strict-aliasing to prevent
miscompilations in sha1.c which would otherwise occur due to this issue.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250625202311.23244-2-ebiggers@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

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Eric Biggers 2025-06-25 13:23:08 -07:00 • committed by Namhyung Kim

parent c72bf82f96

commit 55a18d2f3f

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tools/perf/Makefile.config

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