Stop-the-world compaction phase am: 528b169d13

Original change: https://android-review.googlesource.com/c/platform/art/+/1868127

Change-Id: I44bbfbbfe4973f7c64981f4f9a25435a52095c08
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/runtime/mirror/object.h b/runtime/mirror/object.h
index ac7274588d..d83f3d6b00 100644
--- a/runtime/mirror/object.h
+++ b/runtime/mirror/object.h
@@ -647,6 +647,17 @@ class MANAGED LOCKABLE Object {
             typename JavaLangRefVisitor = VoidFunctor>
   void VisitReferences(const Visitor& visitor, const JavaLangRefVisitor& ref_visitor)
       NO_THREAD_SAFETY_ANALYSIS;
+  // VisitReferences version for compaction. It is invoked with from-space
+  // object so that portions of the object, like klass and length (for arrays),
+  // can be accessed without causing cascading faults.
+  template <bool kFetchObjSize = true,
+            bool kVisitNativeRoots = true,
+            VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
+            ReadBarrierOption kReadBarrierOption = kWithReadBarrier,
+            typename Visitor>
+  size_t VisitRefsForCompaction(const Visitor& visitor,
+                                MemberOffset begin,
+                                MemberOffset end) NO_THREAD_SAFETY_ANALYSIS;
 
   ArtField* FindFieldByOffset(MemberOffset offset) REQUIRES_SHARED(Locks::mutator_lock_);