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authorMarcus Shawcroft <marcus.shawcroft@linaro.org>2013-01-16 13:29:05 +0000
committerWill Newton <will.newton@linaro.org>2013-07-22 14:31:07 +0100
commitc3fe4153b2b5d80c7ee5c435a28d07a1b143a0d6 (patch)
treedbaae53143b4a248349fb4f10591553210422cea
parenta0e57b5d9e6017dac987f74c1a8d33afb671dab1 (diff)
AArch64: Implement optimized bzero.
-rw-r--r--libc/ports/ChangeLog.aarch64.linaro4
-rw-r--r--ports/sysdeps/aarch64/bzero.S27
2 files changed, 31 insertions, 0 deletions
diff --git a/libc/ports/ChangeLog.aarch64.linaro b/libc/ports/ChangeLog.aarch64.linaro
index c007e0192..41023aad2 100644
--- a/libc/ports/ChangeLog.aarch64.linaro
+++ b/libc/ports/ChangeLog.aarch64.linaro
@@ -1,5 +1,9 @@
2013-01-17 Marcus Shawcroft <marcus.shawcroft@linaro.org>
+ * sysdeps/aarch64/bzero.S: New file.
+
+2013-01-17 Marcus Shawcroft <marcus.shawcroft@linaro.org>
+
* sysdeps/aarch64/memmove.S: New file.
2013-01-17 Marcus Shawcroft <marcus.shawcroft@linaro.org>
diff --git a/ports/sysdeps/aarch64/bzero.S b/ports/sysdeps/aarch64/bzero.S
new file mode 100644
index 000000000..228c0a5f3
--- /dev/null
+++ b/ports/sysdeps/aarch64/bzero.S
@@ -0,0 +1,27 @@
+/* Copyright (C) 2013 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 <sysdep.h>
+
+ .text
+ENTRY(__bzero)
+ mov x2, x1
+ mov x1, xzr
+ b __memset
+END(__bzero)
+weak_alias (__bzero, bzero)