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commit d097d97626e44bc6e76d5daf80ce3ff7d147b623
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Author: Stefan Liebler <stli@linux.ibm.com>
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Date: Tue Dec 18 13:57:07 2018 +0100
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S390: Use memcpy for forward cases in memmove.
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The s390/s390x memcpy implementations are safe to be
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used by memmove. Starting with this commit, memmove is
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using memcpy for the forward cases on s390.
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ChangeLog:
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* sysdeps/s390/memcopy.h: New file.
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diff --git a/sysdeps/s390/memcopy.h b/sysdeps/s390/memcopy.h
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new file mode 100644
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index 0000000000000000..9a76196502f25bbf
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--- /dev/null
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+++ b/sysdeps/s390/memcopy.h
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@@ -0,0 +1,23 @@
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+/* memcopy.h -- definitions for memory copy functions.
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+ Copyright (C) 2018 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdeps/generic/memcopy.h>
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+
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+/* The s390/s390x memcpy implementations are safe to be used by memmove. */
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+#undef MEMCPY_OK_FOR_FWD_MEMMOVE
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+#define MEMCPY_OK_FOR_FWD_MEMMOVE 1
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