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-rw-r--r--eclass/flag-o-matic.eclass4
1 files changed, 4 insertions, 0 deletions
diff --git a/eclass/flag-o-matic.eclass b/eclass/flag-o-matic.eclass
index ecac452aa0ef..c6b1ad80e12e 100644
--- a/eclass/flag-o-matic.eclass
+++ b/eclass/flag-o-matic.eclass
@@ -129,6 +129,10 @@ _setup-allowed-flags() {
# needed for arm64 (and in particular SCS)
-ffixed-x18
+ # needed for riscv (to prevent unaligned vector access)
+ # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115789
+ -mstrict-align -mvector-strict-align
+
# gcc 4.5
-mno-fma4 -mno-movbe -mno-xop -mno-lwp
# gcc 4.6