openkylin
/
platform_system_core
mirror of https://gitee.com/openkylin/platform_system_core.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

Use SSE2 enhanced memset for capable x86 processors 

Originally, if TARGET_ARCH_VARIANT is x86-atom, the SSE2 enhanced
memset is used. This patch extends this to all x86 processors which
support SSE2 (i.e. ARCH_X86_HAVE_SSE2 is true).

Indentation added to the ifeq cases to make this easier to read.

Change-Id: I05f49e237a95359d3f2e3216b037e3fc1a0fbcb0
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Daniel Leung 2012-05-24 16:54:49 -07:00 committed by Andrew Boie
parent 3c8bdef029
commit 51546ee32c
1 changed files with 15 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
libcutils/Android.mk
View File

@ -125,18 +125,22 @@ LOCAL_SRC_FILES := $(commonSources) \
uevent.c
ifeq ($(TARGET_ARCH),arm)
LOCAL_SRC_FILES += arch-arm/memset32.S
LOCAL_SRC_FILES += arch-arm/memset32.S
else # !arm
ifeq ($(TARGET_ARCH_VARIANT),x86-atom)
LOCAL_CFLAGS += -DHAVE_MEMSET16 -DHAVE_MEMSET32
LOCAL_SRC_FILES += arch-x86/android_memset16.S arch-x86/android_memset32.S memory.c
else # !x86-atom
ifeq ($(TARGET_ARCH),mips)
LOCAL_SRC_FILES += arch-mips/android_memset.c
else # !mips
LOCAL_SRC_FILES += memory.c
endif # !mips
endif # !x86-atom
ifeq ($(TARGET_ARCH),x86)
ifeq ($(ARCH_X86_HAVE_SSE2),true)
LOCAL_CFLAGS += -DHAVE_MEMSET16 -DHAVE_MEMSET32 -DUSE_SSE2
LOCAL_SRC_FILES += arch-x86/android_memset16.S arch-x86/android_memset32.S memory.c
else # !ARCH_X86_HAVE_SSE2
LOCAL_SRC_FILES += memory.c
endif # !ARCH_X86_HAVE_SSE2
else # !x86
ifeq ($(TARGET_ARCH),mips)
LOCAL_SRC_FILES += arch-mips/android_memset.c
else # !mips
LOCAL_SRC_FILES += memory.c
endif # !mips
endif # !x86
endif # !arm
LOCAL_C_INCLUDES := $(libcutils_c_includes) $(KERNEL_HEADERS)