diff --git a/libbcc.sha1.mk b/libbcc.sha1.mk
new file mode 100644
index 0000000..47a2be2
--- /dev/null
+++ b/libbcc.sha1.mk
@@ -0,0 +1,47 @@
+#=====================================================================
+# Calculate SHA1 checksum for libbcc.so, libRS.so and libclcore.bc
+#=====================================================================
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libbcc.sha1
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+
+libbcc_SHA1_SRCS := \
+  $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/libbcc.so \
+  $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/libcompiler_rt.so \
+  $($(my_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/libRS.so \
+  $(call intermediates-dir-for,SHARED_LIBRARIES,libclcore.bc,,,$(my_2nd_arch_prefix))/libclcore.bc \
+  $(call intermediates-dir-for,SHARED_LIBRARIES,libclcore_debug.bc,,,$(my_2nd_arch_prefix))/libclcore_debug.bc
+
+ifeq ($(TARGET_$(my_2nd_arch_prefix)ARCH),arm)
+ifeq ($(ARCH_ARM_HAVE_NEON),true)
+  libbcc_SHA1_SRCS += \
+    $(call intermediates-dir-for,SHARED_LIBRARIES,libclcore_neon.bc,,,$(my_2nd_arch_prefix))/libclcore_neon.bc
+endif
+endif
+
+libbcc_GEN_SHA1_STAMP := $(LOCAL_PATH)/tools/build/gen-sha1-stamp.py
+intermediates := $(call local-intermediates-dir,,$(my_2nd_arch_prefix))
+
+libbcc_SHA1_ASM := $(intermediates)/libbcc.sha1.S
+LOCAL_GENERATED_SOURCES += $(libbcc_SHA1_ASM)
+$(libbcc_SHA1_ASM): PRIVATE_SHA1_SRCS := $(libbcc_SHA1_SRCS)
+$(libbcc_SHA1_ASM): $(libbcc_SHA1_SRCS) $(libbcc_GEN_SHA1_STAMP)
+	@echo libbcc.sha1: $@
+	$(hide) mkdir -p $(dir $@)
+	$(hide) $(libbcc_GEN_SHA1_STAMP) $(PRIVATE_SHA1_SRCS) > $@
+
+LOCAL_CFLAGS += -D_REENTRANT -DPIC -fPIC
+LOCAL_CFLAGS += -O3 -nodefaultlibs -nostdlib
+
+ifeq ($(my_2nd_arch_prefix),)
+LOCAL_NO_2ND_ARCH := true
+else
+LOCAL_32_BIT_ONLY := true
+endif
+
+LOCAL_MODULE_TARGET_ARCH := $(LLVM_SUPPORTED_ARCH)
+
+include $(BUILD_SHARED_LIBRARY)