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* [glibc/maskray/relr] x86_64: Add memcmpeq.S to fix disable-multi-arch build
@ 2021-10-29 22:21 Fangrui Song
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From: Fangrui Song @ 2021-10-29 22:21 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1d56fd3baeaa67405b8a1d67275b4c6eecac77b8
commit 1d56fd3baeaa67405b8a1d67275b4c6eecac77b8
Author: Noah Goldstein <goldstein.w.n@gmail.com>
Date: Thu Oct 28 14:41:03 2021 -0500
x86_64: Add memcmpeq.S to fix disable-multi-arch build
The following commit:
commit cf4fd28ea453d1a9cec93939bc88b58ccef5437a
Author: Noah Goldstein <goldstein.w.n@gmail.com>
Date: Tue Oct 26 19:43:18 2021 -0500
Broke --disable-multi-arch build for x86_64 because x86_64/memcmpeq.S
was not defined outside of multiarch and the alias for __memcmpeq in
x86_64/memcmp.S was removed.
This commit fixes that issue by adding x86_64/memcmpeq.S.
make xcheck passes on x86_64 with and without --disable-multi-arch
Diff:
---
sysdeps/x86_64/memcmpeq.S | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/sysdeps/x86_64/memcmpeq.S b/sysdeps/x86_64/memcmpeq.S
new file mode 100644
index 0000000000..db1756915d
--- /dev/null
+++ b/sysdeps/x86_64/memcmpeq.S
@@ -0,0 +1,21 @@
+/* __memcmpeq optimized with SSE2.
+ Copyright (C) 2017-2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#define memcmp __memcmpeq
+#define USE_AS_MEMCMPEQ 1
+#include "multiarch/memcmp-sse2.S"
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