tree 5a0501e3b793531059fc1945ce065b4491d742b9
parent ef5dc90bba179f774bee0c7e479965cef12091de
author Tao Bao <tbao@google.com> 1435366179 -0700
committer Simon Wilson <simonwilson@google.com> 1435770631 -0700

sparse_img.py: Don't write empty map groups.

In certain cases, we may have no mapping of ZERO or NONZERO blocks in
the image (such as squashfs at the moment). Don't write those groups if
they are empty.

Change-Id: I82aa05fbbd79130b08868585edd5298e531c4f5a