aarch64: Disable A64FX memcpy/memmove BTI unconditionally

This patch disables A64FX memcpy/memmove BTI instruction insertion unconditionally such as A64FX memset patch [1] for performance. [1] commit 07b427296b Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
2021-09-24 07:49:59 +00:00 · 2021-09-24 07:49:59 +00:00 · 381b29616a
parent 2efca218b5
commit 381b29616a
1 changed files with 3 additions and 0 deletions
--- a/sysdeps/aarch64/multiarch/memcpy_a64fx.S
+++ b/sysdeps/aarch64/multiarch/memcpy_a64fx.S
@ -19,6 +19,9 @@

 #include <sysdep.h>

+#undef BTI_C
+#define BTI_C
+
 /* Assumptions:
 *
 * ARMv8.2-a, AArch64, unaligned accesses, sve