Tree - rpms/glibc - CentOS Git server

Blob History Raw

		a41fe4	`From 381b29616abb82babc8163bdf516c6da87544b35 Mon Sep 17 00:00:00 2001`
		a41fe4	`From: Naohiro Tamura <naohirot@fujitsu.com>`
		a41fe4	`Date: Fri, 24 Sep 2021 07:49:59 +0000`
		a41fe4	`Subject: [PATCH] aarch64: Disable A64FX memcpy/memmove BTI unconditionally`
		a41fe4
		a41fe4	`This patch disables A64FX memcpy/memmove BTI instruction insertion`
		a41fe4	`unconditionally such as A64FX memset patch [1] for performance.`
		a41fe4
		a41fe4	`[1] commit 07b427296b8d59f439144029d9a948f6c1ce0a31`
		a41fe4
		a41fe4	`Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>`
		a41fe4	`---`
		a41fe4	`sysdeps/aarch64/multiarch/memcpy_a64fx.S \| 3 +++`
		a41fe4	`1 file changed, 3 insertions(+)`
		a41fe4
		a41fe4	`diff --git a/sysdeps/aarch64/multiarch/memcpy_a64fx.S b/sysdeps/aarch64/multiarch/memcpy_a64fx.S`
		a41fe4	`index 65528405bb..ae7464e09f 100644`
		a41fe4	`--- a/sysdeps/aarch64/multiarch/memcpy_a64fx.S`
		a41fe4	`+++ b/sysdeps/aarch64/multiarch/memcpy_a64fx.S`
		a41fe4	`@@ -19,6 +19,9 @@`
		a41fe4
		a41fe4	`#include <sysdep.h>`
		a41fe4
		a41fe4	`+#undef BTI_C`
		a41fe4	`+#define BTI_C`
		a41fe4	`+`
		a41fe4	`/* Assumptions:`
		a41fe4	`*`
		a41fe4	`* ARMv8.2-a, AArch64, unaligned accesses, sve`
		a41fe4	`--`
		a41fe4	`2.31.1`
		a41fe4