1 files changed, 26 insertions, 0 deletions
diff --git a/runtime/indirect_reference_table.cc b/runtime/indirect_reference_table.cc
index 82b53f6..c8855e3 100644
--- a/runtime/indirect_reference_table.cc
+++ b/runtime/indirect_reference_table.cc
@@ -27,6 +27,32 @@
 
 namespace art {
 
+template<typename T>
+class MutatorLockedDumpable {
+ public:
+  explicit MutatorLockedDumpable(T& value)
+      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) : value_(value) {
+  }
+
+  void Dump(std::ostream& os) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+    value_.Dump(os);
+  }
+
+ private:
+  T& value_;
+
+  DISALLOW_COPY_AND_ASSIGN(MutatorLockedDumpable);
+};
+
+template<typename T>
+std::ostream& operator<<(std::ostream& os, const MutatorLockedDumpable<T>& rhs)
+// TODO: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) however annotalysis
+//       currently fails for this.
+    NO_THREAD_SAFETY_ANALYSIS {
+  rhs.Dump(os);
+  return os;
+}
+
 static void AbortMaybe() {
   // If -Xcheck:jni is on, it'll give a more detailed error before aborting.
   if (!Runtime::Current()->GetJavaVM()->check_jni) {