diff --git a/tools/fileslist.py b/tools/fileslist.py
new file mode 100755
index 0000000..ae105e6
--- /dev/null
+++ b/tools/fileslist.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2009 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the 'License');
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an 'AS IS' BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import os, sys
+
+def main(argv):
+  output = []
+  roots = argv[1:]
+  for root in roots:
+    base = len(root[:root.rfind(os.path.sep)])
+    for dir, dirs, files in os.walk(root):
+      relative = dir[base:]
+      for f in files:
+        try:
+          row = (
+              os.path.getsize(os.path.sep.join((dir, f))),
+              os.path.sep.join((relative, f)),
+            )
+          output.append(row)
+        except os.error:
+          pass
+  for row in output:
+    print "%12d  %s" % row
+
+if __name__ == '__main__':
+  main(sys.argv)
+