update to glibc-2.28-251.2.src.rpm

Signed-off-by: Zhao Hang <wb-zh951434@alibaba-inc.com>

glibc-RHEL-15696-79.patch

@@ -0,0 +1,40 @@
+From 1b0c60f95bbe2eded80b2bb5be75c0e45b11cde1 Mon Sep 17 00:00:00 2001
+From: Noah Goldstein <goldstein.w.n@gmail.com>
+Date: Mon, 7 Feb 2022 00:32:23 -0600
+Subject: [PATCH] x86: Remove SSSE3 instruction for broadcast in memset.S (SSE2
+ Only)
+Content-type: text/plain; charset=UTF-8
+
+commit b62ace2740a106222e124cc86956448fa07abf4d
+Author: Noah Goldstein <goldstein.w.n@gmail.com>
+Date:   Sun Feb 6 00:54:18 2022 -0600
+
+    x86: Improve vec generation in memset-vec-unaligned-erms.S
+
+Revert usage of 'pshufb' in broadcast logic as it is an SSSE3
+instruction and memset.S is restricted to only SSE2 instructions.
+---
+ sysdeps/x86_64/memset.S | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/sysdeps/x86_64/memset.S b/sysdeps/x86_64/memset.S
+index 27debd2b..4cb4aa71 100644
+--- a/sysdeps/x86_64/memset.S
++++ b/sysdeps/x86_64/memset.S
+@@ -30,9 +30,10 @@
+ 
+ # define MEMSET_SET_VEC0_AND_SET_RETURN(d, r) \
+   movd d, %xmm0; \
+-  pxor %xmm1, %xmm1; \
+-  pshufb %xmm1, %xmm0; \
+-  movq r, %rax
++  movq r, %rax; \
++  punpcklbw %xmm0, %xmm0; \
++  punpcklwd %xmm0, %xmm0; \
++  pshufd $0, %xmm0, %xmm0
+ 
+ # define WMEMSET_SET_VEC0_AND_SET_RETURN(d, r) \
+   movd d, %xmm0; \
+-- 
+GitLab
+