tree 701346031a5b93e71c73f4786f1a276e1f6053db
parent 2707d6026240bcca6f0e35e2e1138958882e90ce
author Andy McFadden <fadden@android.com> 1278718017 -0700
committer Andy McFadden <fadden@android.com> 1278966914 -0700

Allow "am" to initiate heap dumps.

This was mostly cloned from the "am profile" implementation.  It's
intended to replace the old "kill -10" approach used by "runhat".

We could really use a native heap dump, so I pass a "managed"
flag through that indicates whether we want to dump the native or
managed heap.  We don't currently have a native heap dump-to-file
function, so it currently just logs a warning.

(android.ddm.DdmHandleNativeHeap.getLeakInfo is a good start -- it
copies /proc/maps and then calls get_malloc_leak_info to get some
goodies.  Needs some formatting to make it human-readable.  I didn't
want to cram all that into this change.)

It would be useful if "am" didn't exit until the heap dump operation
completed, but I'm not sure how to do that.

Bug 2759474.

Change-Id: I46bc98067738d8c72ac0fc10002ca67bb4929271