Needed for shadow stack bits on ARM64.
Closes: https://bugs.gentoo.org/800533
Thanks-to: Jannik Glückert <[email protected]>
Signed-off-by: Sam James <[email protected]>
---
eclass/flag-o-matic.eclass | 3 +++
1 file changed, 3 insertions(+)
diff --git a/eclass/flag-o-matic.eclass b/eclass/flag-o-matic.eclass
index a2e37b89b6f08..7ac4f4a7791d1 100644
--- a/eclass/flag-o-matic.eclass
+++ b/eclass/flag-o-matic.eclass
@@ -109,6 +109,9 @@ _setup-allowed-flags() {
-mfix-rm7000 -mno-fix-rm7000 -mfix-r10000 -mno-fix-r10000
'-mr10k-cache-barrier=*' -mthumb -marm
+ # needed for arm64 (and in particular SCS)
+ -ffixed-x18
+
# gcc 4.5
-mno-fma4 -mno-movbe -mno-xop -mno-lwp
# gcc 4.6
--
2.34.1
