Frameworks/base: New preload tool

Add a new preload tool based on hprof dumps. This means that only
a userdebug build (to adjust the pre-existing preloaded-classes
file) is required now, not a recompiled runtime.

Change-Id: Ib0c00de3b248e49fa8271cbace67c5d4a50170a1
diff --git a/tools/preload2/Android.mk b/tools/preload2/Android.mk
new file mode 100644
index 0000000..35d28fb
--- /dev/null
+++ b/tools/preload2/Android.mk
@@ -0,0 +1,32 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := $(call all-java-files-under,src)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+# To connect to devices (and take hprof dumps).
+LOCAL_STATIC_JAVA_LIBRARIES := ddmlib-prebuilt
+
+# To process hprof dumps.
+LOCAL_STATIC_JAVA_LIBRARIES += perflib-prebuilt trove-prebuilt guavalib
+
+# For JDWP access we use the framework in the JDWP tests from Apache Harmony, for
+# convenience (and to not depend on internal JDK APIs).
+LOCAL_STATIC_JAVA_LIBRARIES += apache-harmony-jdwp-tests-host junit
+
+LOCAL_MODULE:= preload2
+
+include $(BUILD_HOST_JAVA_LIBRARY)
+
+# Copy the preload-tool shell script to the host's bin directory.
+include $(CLEAR_VARS)
+LOCAL_IS_HOST_MODULE := true
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_MODULE := preload-tool
+include $(BUILD_SYSTEM)/base_rules.mk
+$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/preload-tool $(ACP)
+	@echo "Copy: $(PRIVATE_MODULE) ($@)"
+	$(copy-file-to-new-target)
+	$(hide) chmod 755 $@