diff options
| author | Andrew Turner <andrew@FreeBSD.org> | 2024-05-22 15:54:32 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2024-05-22 17:02:26 +0000 |
| commit | 82854693aec11f87f1f0560e8395452b64f1770f (patch) | |
| tree | 1bf6ee9ec251390056b9c90111489b01d4767b06 /share/mk/bsd.opts.mk | |
| parent | 2183004e14a863d65ca9192df1bea2625e3fdfb3 (diff) | |
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
Diffstat (limited to 'share/mk/bsd.opts.mk')
| -rw-r--r-- | share/mk/bsd.opts.mk | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/share/mk/bsd.opts.mk b/share/mk/bsd.opts.mk index 65ae4f4cfa7c..18098c93605c 100644 --- a/share/mk/bsd.opts.mk +++ b/share/mk/bsd.opts.mk @@ -74,6 +74,7 @@ __DEFAULT_YES_OPTIONS = \ __DEFAULT_NO_OPTIONS = \ ASAN \ BIND_NOW \ + BRANCH_PROTECTION \ CCACHE_BUILD \ CTF \ INSTALL_AS_USER \ @@ -102,6 +103,10 @@ __DEFAULT_NO_OPTIONS+= PIE __DEFAULT_YES_OPTIONS+=PIE .endif +.if ${MACHINE_CPUARCH} != "aarch64" +BROKEN_OPTIONS+= BRANCH_PROTECTION +.endif + __SINGLE_OPTIONS = \ INIT_ALL |