Flags common for native tests

With the CL, "include $(BUILD_NATIVE_TEST)" to build native test;
"include $(BUILD_HOST_NATIVE_TEST)" to build a host native test.

Change-Id: Icdbbcf906cd4c5c35e65962897490052cd051102
diff --git a/core/config.mk b/core/config.mk
index e6295d8..a2173dd 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -70,6 +70,8 @@
 BUILD_DROIDDOC:= $(BUILD_SYSTEM)/droiddoc.mk
 BUILD_COPY_HEADERS := $(BUILD_SYSTEM)/copy_headers.mk
 BUILD_KEY_CHAR_MAP := $(BUILD_SYSTEM)/key_char_map.mk
+BUILD_NATIVE_TEST := $(BUILD_SYSTEM)/native_test.mk
+BUILD_HOST_NATIVE_TEST := $(BUILD_SYSTEM)/host_native_test.mk
 
 # ###############################################################
 # Parse out any modifier targets.
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 87ac2f6..da9dd28 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -237,6 +237,7 @@
 TARGET_OUT_DATA_KEYCHARS := $(TARGET_OUT_KEYCHARS)
 TARGET_OUT_DATA_ETC := $(TARGET_OUT_ETC)
 TARGET_OUT_DATA_STATIC_LIBRARIES:= $(TARGET_OUT_STATIC_LIBRARIES)
+TARGET_OUT_DATA_NATIVE_TESTS := $(TARGET_OUT_DATA)/nativetest
 
 TARGET_OUT_UNSTRIPPED := $(PRODUCT_OUT)/symbols
 TARGET_OUT_EXECUTABLES_UNSTRIPPED := $(TARGET_OUT_UNSTRIPPED)/system/bin
diff --git a/core/host_native_test.mk b/core/host_native_test.mk
new file mode 100644
index 0000000..2a77f1e
--- /dev/null
+++ b/core/host_native_test.mk
@@ -0,0 +1,14 @@
+################################################
+## A thin wrapper around BUILD_HOST_EXECUTABLE
+## Common flags for host native tests are added.
+################################################
+
+LOCAL_CFLAGS += -DGTEST_OS_LINUX -DGTEST_HAS_STD_STRING -O0 -g
+LOCAL_C_INCLUDES +=  \
+                    bionic/libstdc++/include \
+                    external/gtest/include \
+                    external/astl/include
+LOCAL_STATIC_LIBRARIES += libgtest_host libgtest_main_host libastl_host
+LOCAL_SHARED_LIBRARIES +=
+
+include $(BUILD_HOST_EXECUTABLE)
diff --git a/core/native_test.mk b/core/native_test.mk
new file mode 100644
index 0000000..7fe1637
--- /dev/null
+++ b/core/native_test.mk
@@ -0,0 +1,18 @@
+###########################################
+## A thin wrapper around BUILD_EXECUTABLE
+## Common flags for native tests are added.
+###########################################
+
+LOCAL_CFLAGS += -DGTEST_OS_LINUX -DGTEST_HAS_STD_STRING
+LOCAL_C_INCLUDES += bionic \
+                    bionic/libstdc++/include \
+                    external/gtest/include \
+                    external/stlport/stlport
+LOCAL_STATIC_LIBRARIES +=
+LOCAL_SHARED_LIBRARIES += libstlport
+
+ifndef LOCAL_MODULE_PATH
+LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_NATIVE_TESTS)
+endif
+
+include $(BUILD_EXECUTABLE)