tile: use memcpy in memmove when possible

diff --git a/ports/ChangeLog.tile b/ports/ChangeLog.tile
index 06f24c2..542fc7f 100644 (file)
--- 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 (file)
index 0000000..0cb0a81
--- /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>