glibc/SOURCES/glibc-rh1659438-11.patch

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2021-04-23 04:11:25 +00:00
commit d097d97626e44bc6e76d5daf80ce3ff7d147b623
Author: Stefan Liebler <stli@linux.ibm.com>
Date: Tue Dec 18 13:57:07 2018 +0100
S390: Use memcpy for forward cases in memmove.
The s390/s390x memcpy implementations are safe to be
used by memmove. Starting with this commit, memmove is
using memcpy for the forward cases on s390.
ChangeLog:
* sysdeps/s390/memcopy.h: New file.
diff --git a/sysdeps/s390/memcopy.h b/sysdeps/s390/memcopy.h
new file mode 100644
index 0000000000000000..9a76196502f25bbf
--- /dev/null
+++ b/sysdeps/s390/memcopy.h
@@ -0,0 +1,23 @@
+/* memcopy.h -- definitions for memory copy functions.
+ Copyright (C) 2018 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdeps/generic/memcopy.h>
+
+/* The s390/s390x memcpy implementations are safe to be used by memmove. */
+#undef MEMCPY_OK_FOR_FWD_MEMMOVE
+#define MEMCPY_OK_FOR_FWD_MEMMOVE 1