|
 |
ce426f |
Backport of the addition of
|
|
|
ce426f |
sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c
|
|
|
ce426f |
from the following:
|
|
|
ce426f |
|
|
|
ce426f |
commit 9f2f36e5a91c2ce6edba5415e176155eb1008ae1
|
|
|
ce426f |
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
|
|
|
ce426f |
Date: Tue Dec 23 13:39:23 2014 -0500
|
|
|
ce426f |
|
|
|
ce426f |
powerpc: Optimized strncat for POWER7/PPC64
|
|
|
ce426f |
|
|
|
ce426f |
With 3eb38795dbbbd816 (Simplify strncat) the generic algorithms uses
|
|
|
ce426f |
strlen, strnlen, and memcpy. This is faster than POWER7 current
|
|
|
ce426f |
implementation, especially for unaligned strings (where POWER7 code
|
|
|
ce426f |
uses byte-byte operations).
|
|
|
ce426f |
|
|
|
ce426f |
This patch removes the assembly implementation and uses a multiarch
|
|
|
ce426f |
specialization based on default algorithm calling optimized POWER7
|
|
|
ce426f |
symbols.
|
|
|
ce426f |
|
|
|
ce426f |
ChangeLog:
|
|
|
ce426f |
2015-01-13 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
|
|
|
ce426f |
|
|
|
ce426f |
* sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c: New file.
|
|
|
ce426f |
* sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S: Remove file.
|
|
|
ce426f |
* sysdeps/powerpc/powerpc64/power7/strncat.S: Likewise.
|
|
|
ce426f |
|
|
|
ce426f |
plus the addition of strncat-power7 to
|
|
|
ce426f |
sysdeps/powerpc/powerpc64/multiarch/Makefile
|
|
|
ce426f |
|
|
|
ce426f |
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
|
|
|
ce426f |
index 7ebfc7e..74ae710 100644
|
|
|
ce426f |
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
|
|
|
ce426f |
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
|
|
|
ce426f |
@@ -8,6 +8,7 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
|
|
|
ce426f |
stpcpy-power8 stpcpy-power7 stpcpy-ppc64 \
|
|
|
ce426f |
strcat-power8 strcat-power7 strcat-ppc64 \
|
|
|
ce426f |
strcpy-power8 strcpy-power7 strcpy-ppc64 \
|
|
|
ce426f |
+ strncat-power7 \
|
|
|
ce426f |
rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \
|
|
|
ce426f |
strnlen-ppc64 strcasecmp-power7 strcasecmp_l-power7 \
|
|
|
ce426f |
strncase-power7 strncase_l-power7 strncmp-power7 \
|
|
|
ce426f |
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c b/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c
|
|
|
ce426f |
new file mode 100644
|
|
|
ce426f |
index 0000000..39b1aeb
|
|
|
ce426f |
--- /dev/null
|
|
|
ce426f |
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c
|
|
|
ce426f |
@@ -0,0 +1,31 @@
|
|
|
ce426f |
+/* Copyright (C) 2015 Free Software Foundation, Inc.
|
|
|
ce426f |
+ This file is part of the GNU C Library.
|
|
|
ce426f |
+
|
|
|
ce426f |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
ce426f |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
ce426f |
+ License as published by the Free Software Foundation; either
|
|
|
ce426f |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
ce426f |
+
|
|
|
ce426f |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
ce426f |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
ce426f |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
ce426f |
+ Lesser General Public License for more details.
|
|
|
ce426f |
+
|
|
|
ce426f |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
ce426f |
+ License along with the GNU C Library; if not, see
|
|
|
ce426f |
+ <http://www.gnu.org/licenses/ >. */
|
|
|
ce426f |
+
|
|
|
ce426f |
+#include <string.h>
|
|
|
ce426f |
+
|
|
|
ce426f |
+#define STRNCAT __strncat_power7
|
|
|
ce426f |
+
|
|
|
ce426f |
+extern __typeof (strncat) __strncat_power7 attribute_hidden;
|
|
|
ce426f |
+extern __typeof (strlen) __strlen_power7 attribute_hidden;
|
|
|
ce426f |
+extern __typeof (strnlen) __strnlen_power7 attribute_hidden;
|
|
|
ce426f |
+extern __typeof (memcpy) __memcpy_power7 attribute_hidden;
|
|
|
ce426f |
+
|
|
|
ce426f |
+#define strlen __strlen_power7
|
|
|
ce426f |
+#define __strnlen __strnlen_power7
|
|
|
ce426f |
+#define memcpy __memcpy_power7
|
|
|
ce426f |
+
|
|
|
ce426f |
+#include <string/strncat.c>
|