commit ad2541a59c00c2c69e8973088891a2b5257c9780
author Mathieu Chartier <mathieuc@google.com> Fri Oct 25 10:05:23 2013 -0700
committer Mathieu Chartier <mathieuc@google.com> Tue Oct 29 12:14:36 2013 -0700
tree 523898cf039c5185352978e71a54fa3a2657a04c
parent 9780099e445884d8bc9444c8c1261b02d80a26c7

Fix object identity hash.

The object identity hash is now stored in the monitor word after
being computed. Hashes are computed by a pseudo random number
generator.

When we write the image, we eagerly compute object hashes to
prevent pages getting dirtied.

Bug: 8981901

Change-Id: Ic8edacbacb0afc7055fd740a52444929f88ed564

runtime/gc/heap.h

diff --git a/runtime/gc/heap.h b/runtime/gc/heap.h
index 1c2b7ef..7d2441b 100644
--- a/runtime/gc/heap.h
+++ b/runtime/gc/heap.h
@@ -518,8 +518,9 @@
 
   void PreGcVerification(collector::GarbageCollector* gc);
   void PreSweepingGcVerification(collector::GarbageCollector* gc)
+      EXCLUSIVE_LOCKS_REQUIRED(Locks::mutator_lock_);
+  void PostGcVerification(collector::GarbageCollector* gc)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
-  void PostGcVerification(collector::GarbageCollector* gc);
 
   // Update the watermark for the native allocated bytes based on the current number of native
   // bytes allocated and the target utilization ratio.