commit 7e4fa560999d07064d219a16ebb50d3691dd1b63
author Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org> Wed Mar 05 11:40:57 2014 +0100
committer Elliott Hughes <enh@google.com> Thu Mar 06 14:59:51 2014 -0800
tree de14042ebcf251da3fa758b12edfe134cd97aa31
parent bef5016491eed41521f514d5c5528e2274689948

Add ARMv8 optimized string handling functions based on cortex-strings

This adds ARMv8 optimized string handling functions to Bionic.
The implementations live in a generic/ directory because there will
likely be more CPU specific versions (e.g. Cortex-A53 vs. Cortex-A57)
later.

These implementations are 50%+ faster on current v8 models.

Change-Id: If3adc54a284d9519459b0d4d4390f0cd6ded8786
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>

libc/arch-arm64/arm64.mk

diff --git a/libc/arch-arm64/arm64.mk b/libc/arch-arm64/arm64.mk
index 76c610a..88da1f3 100644
--- a/libc/arch-arm64/arm64.mk
+++ b/libc/arch-arm64/arm64.mk
@@ -4,13 +4,8 @@
     bionic/index.cpp \
     bionic/memchr.c \
     bionic/__memcmp16.cpp \
-    bionic/memcmp.c \
-    bionic/memcpy.cpp \
-    bionic/memmove.c \
     bionic/memrchr.c \
-    bionic/memset.c \
     bionic/strchr.cpp \
-    bionic/strnlen.c \
     bionic/strrchr.cpp \
     upstream-freebsd/lib/libc/string/wcscat.c \
     upstream-freebsd/lib/libc/string/wcschr.c \
@@ -21,13 +16,10 @@
     upstream-freebsd/lib/libc/string/wmemcmp.c \
     upstream-openbsd/lib/libc/string/bcopy.c \
     upstream-openbsd/lib/libc/string/strcat.c \
-    upstream-openbsd/lib/libc/string/strcmp.c \
     upstream-openbsd/lib/libc/string/strcpy.c \
     upstream-openbsd/lib/libc/string/strlcat.c \
     upstream-openbsd/lib/libc/string/strlcpy.c \
-    upstream-openbsd/lib/libc/string/strlen.c \
     upstream-openbsd/lib/libc/string/strncat.c \
-    upstream-openbsd/lib/libc/string/strncmp.c \
     upstream-openbsd/lib/libc/string/strncpy.c \
 
 # Fortify implementations of libc functions.
@@ -62,3 +54,5 @@
 
 libc_crt_target_crtbegin_so_file_arm64 := \
     $(LOCAL_PATH)/arch-common/bionic/crtbegin_so.c
+
+include $(LOCAL_PATH)/arch-arm64/generic/generic.mk