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authorMaxim Kuvyrkov <maxim@codesourcery.com>2012-11-06 17:47:55 -0800
committerMaxim Kuvyrkov <maxim@codesourcery.com>2012-11-06 17:47:55 -0800
commit19218757e638bac1ff7193ff54fdee143833e2ac (patch)
tree775b394eb065fec013a2cac3fa733ba0859fca87 /ports
parentc5f457212413392210bb9c9cf610d0eb1d4e9c09 (diff)
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Use memcpy in memmove when possible
Diffstat (limited to 'ports')
-rw-r--r--ports/ChangeLog.mips4
-rw-r--r--ports/sysdeps/mips/memmove.c23
2 files changed, 27 insertions, 0 deletions
diff --git a/ports/ChangeLog.mips b/ports/ChangeLog.mips
index 8dc4893..cdf4ea3 100644
--- a/ports/ChangeLog.mips
+++ b/ports/ChangeLog.mips
@@ -1,3 +1,7 @@
+2012-11-06 Maxim Kuvyrkov <maxim@codesourcery.com>
+
+ * sysdeps/mips/memmove.c: New file. Use memcpy for forward memmove.
+
2012-11-05 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/mips/nptl/lowlevellock.h
diff --git a/ports/sysdeps/mips/memmove.c b/ports/sysdeps/mips/memmove.c
new file mode 100644
index 0000000..1426ec3
--- /dev/null
+++ b/ports/sysdeps/mips/memmove.c
@@ -0,0 +1,23 @@
+/* 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.
+ Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>.
+
+ 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/>. */
+
+/* MIPS' implementation of memcpy is safe to use for memmove. */
+#define MEMCPY_OK_FOR_FWD_MEMMOVE 1
+#include <string/memmove.c>