[PATCH v2] arm64: Allow CONFIG_AUTOFDO_CLANG to be selected

[Kees Cook]

On Mon, Nov 18, 2024 at 02:25:40PM -0800, Yabin Cui wrote:
> Select ARCH_SUPPORTS_AUTOFDO_CLANG to allow AUTOFDO_CLANG to be
> selected.
> 
> On ARM64, ETM traces can be recorded and converted to AutoFDO profiles.
> Experiments on Android show 4% improvement in cold app startup time
> and 13% improvement in binder benchmarks.
> 
> Signed-off-by: Yabin Cui <yabinc at google.com>

This looks trivial enough to enable. ;) I expect this could go via the
kbuild tree (Masahiro) with an arm64 maintainer Ack.

FWIW:

Reviewed-by: Kees Cook <kees at kernel.org>

-- 
Kees Cook