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