Files
freebsd/stand
Andrew Turner 82854693ae arm64: Allow userspace to be built with PAC and BTI
Add the WITH/WITHOUT_BRANCH_PROTECTION build flags. This can be used
to enable the use of pointer authentication (FEAT_PAuth) and branch
target identification (FEAT_BTI) in userspace.

The kernel already handles both of these is userspace, we just need
to enable it.

Leave disabled for a short period for this to settle before enabling.

Reviewed by:	emaste
Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D42596
2024-05-22 17:02:26 +00:00
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