Hook up the backup data writer, and add a utility to read the backup data files.
diff --git a/cmds/backup/Android.mk b/cmds/backup/Android.mk
new file mode 100644
index 0000000..a37a80e
--- /dev/null
+++ b/cmds/backup/Android.mk
@@ -0,0 +1,15 @@
+# Copyright 2009 The Android Open Source Project
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= backup.cpp
+
+LOCAL_SHARED_LIBRARIES := libcutils libc libutils
+
+LOCAL_MODULE:= btool
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
+LOCAL_MODULE_TAGS := debug
+
+include $(BUILD_EXECUTABLE)