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authorChris Metcalf <cmetcalf@tilera.com>2012-11-06 22:19:31 -0500
committerChris Metcalf <cmetcalf@tilera.com>2012-11-06 22:19:31 -0500
commitfdf689a977fe4d11d61b67e47dc3a2884cec996f (patch)
treedf957c083e065bb683bd3a4eb784c45bbf1378f9
parent19218757e638bac1ff7193ff54fdee143833e2ac (diff)
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tile: use memcpy in memmove when possible
-rw-r--r--ports/ChangeLog.tile2
-rw-r--r--ports/sysdeps/tile/tilegx/memmove.c22
2 files changed, 24 insertions, 0 deletions
diff --git a/ports/ChangeLog.tile b/ports/ChangeLog.tile
index 06f24c27e9..542fc7f4a6 100644
--- a/ports/ChangeLog.tile
+++ b/ports/ChangeLog.tile
@@ -1,5 +1,7 @@
 2012-11-06  Chris Metcalf  <cmetcalf@tilera.com>
 
+	* sysdeps/tile/tilegx/memmove.c: New file.
+
 	* sysdeps/tile/nptl/pthread_spin_unlock.c: New file.
 
 2012-11-05  Chris Metcalf  <cmetcalf@tilera.com>
diff --git a/ports/sysdeps/tile/tilegx/memmove.c b/ports/sysdeps/tile/tilegx/memmove.c
new file mode 100644
index 0000000000..0cb0a81e5f
--- /dev/null
+++ b/ports/sysdeps/tile/tilegx/memmove.c
@@ -0,0 +1,22 @@
+/* Copy memory to memory until the specified number of bytes
+   has been copied.  Overlap is handled correctly.
+   Copyright (C) 2012 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/>.  */
+
+/* The tilegx implementation of memcpy is safe to use for memmove.  */
+#define MEMCPY_OK_FOR_FWD_MEMMOVE 1
+#include <string/memmove.c>