Use larger neon instructions for moving data.
Included is a new target generic-neon that will use neon instructions
on 64 bit platforms where appropriate.
Change-Id: Iaf71b768780aa9240a24539cd87666ca9298e4c6
diff --git a/libc/arch-arm64/arm64.mk b/libc/arch-arm64/arm64.mk
index 88da1f3..14cc3f4 100644
--- a/libc/arch-arm64/arm64.mk
+++ b/libc/arch-arm64/arm64.mk
@@ -55,4 +55,15 @@
libc_crt_target_crtbegin_so_file_arm64 := \
$(LOCAL_PATH)/arch-common/bionic/crtbegin_so.c
-include $(LOCAL_PATH)/arch-arm64/generic/generic.mk
+## CPU variant specific source files
+ifeq ($(strip $(TARGET_CPU_VARIANT)),)
+ $(warning TARGET_ARCH is arm64, but TARGET_CPU_VARIANT is not defined)
+endif
+cpu_variant_mk := $(LOCAL_PATH)/arch-arm64/$(TARGET_CPU_VARIANT)/$(TARGET_CPU_VARIANT).mk
+ifeq ($(wildcard $(cpu_variant_mk)),)
+$(error "TARGET_CPU_VARIANT not set or set to an unknown value. Possible values are generic, generic-neon. Use generic for devices that do not have a CPU similar to any of the supported cpu variants.")
+endif
+include $(cpu_variant_mk)
+libc_common_additional_dependencies += $(cpu_variank_mk)
+
+cpu_variant_mk :=