You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
3.4 KiB
78 lines
3.4 KiB
Backport of the addition of |
|
sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c |
|
from the following: |
|
|
|
commit 9f2f36e5a91c2ce6edba5415e176155eb1008ae1 |
|
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com> |
|
Date: Tue Dec 23 13:39:23 2014 -0500 |
|
|
|
powerpc: Optimized strncat for POWER7/PPC64 |
|
|
|
With 3eb38795dbbbd816 (Simplify strncat) the generic algorithms uses |
|
strlen, strnlen, and memcpy. This is faster than POWER7 current |
|
implementation, especially for unaligned strings (where POWER7 code |
|
uses byte-byte operations). |
|
|
|
This patch removes the assembly implementation and uses a multiarch |
|
specialization based on default algorithm calling optimized POWER7 |
|
symbols. |
|
|
|
ChangeLog: |
|
2015-01-13 Adhemerval Zanella <azanella@linux.vnet.ibm.com> |
|
|
|
* sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c: New file. |
|
* sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S: Remove file. |
|
* sysdeps/powerpc/powerpc64/power7/strncat.S: Likewise. |
|
|
|
plus the addition of strncat-power7 to |
|
sysdeps/powerpc/powerpc64/multiarch/Makefile |
|
|
|
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile |
|
index 7ebfc7e..74ae710 100644 |
|
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile |
|
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile |
|
@@ -8,6 +8,7 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \ |
|
stpcpy-power8 stpcpy-power7 stpcpy-ppc64 \ |
|
strcat-power8 strcat-power7 strcat-ppc64 \ |
|
strcpy-power8 strcpy-power7 strcpy-ppc64 \ |
|
+ strncat-power7 \ |
|
rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \ |
|
strnlen-ppc64 strcasecmp-power7 strcasecmp_l-power7 \ |
|
strncase-power7 strncase_l-power7 strncmp-power7 \ |
|
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c b/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c |
|
new file mode 100644 |
|
index 0000000..39b1aeb |
|
--- /dev/null |
|
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.c |
|
@@ -0,0 +1,31 @@ |
|
+/* Copyright (C) 2015 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 <string.h> |
|
+ |
|
+#define STRNCAT __strncat_power7 |
|
+ |
|
+extern __typeof (strncat) __strncat_power7 attribute_hidden; |
|
+extern __typeof (strlen) __strlen_power7 attribute_hidden; |
|
+extern __typeof (strnlen) __strnlen_power7 attribute_hidden; |
|
+extern __typeof (memcpy) __memcpy_power7 attribute_hidden; |
|
+ |
|
+#define strlen __strlen_power7 |
|
+#define __strnlen __strnlen_power7 |
|
+#define memcpy __memcpy_power7 |
|
+ |
|
+#include <string/strncat.c>
|
|
|