Add AbstractMethod, Constructor, Method

Moves functionality to ART from libcore. Precursor to moving
ArtMethods to native. Mostly performance improvements.

N5 perf before (irrelevant results removed):
            Class_getConstructor  962.87 ===========
         Class_getDeclaredMethod 2394.37 ============================
                 Class_getMethod 2509.20 ==============================
               Class_newInstance 1999.81 =======================
                  Method_invokeI 1439.02 =================
          Method_invokePreBoxedI 1415.82 ================
            Method_invokeStaticI 1456.24 =================
    Method_invokeStaticPreBoxedI 1427.32 =================
            Method_invokeStaticV  814.47 =========
                  Method_invokeV  816.56 =========
After:
                       benchmark      ns linear runtime
            Class_getConstructor 1302.04 ================
         Class_getDeclaredMethod 1459.01 ==================
                 Class_getMethod 1560.40 ===================
               Class_newInstance 2029.94 =========================
                  Method_invokeI 1312.89 ================
          Method_invokePreBoxedI 1255.01 ===============
            Method_invokeStaticI 1289.13 ===============
    Method_invokeStaticPreBoxedI 1196.52 ==============
            Method_invokeStaticV  790.82 =========
                  Method_invokeV  791.73 =========

Performance improvements are more than just fixing regressions introduced
in: http://android-review.googlesource.com/#/c/146069/

Bug: 19264997

Change-Id: Ife79c469fdb09f30e3aefcfc3e0ce5ed32303fce

1 files changed, 73 insertions, 0 deletions

diff --git a/runtime/mirror/abstract_method.h b/runtime/mirror/abstract_method.h
new file mode 100644
index 0000000..ef51d7f
--- /dev/null
+++ b/runtime/mirror/abstract_method.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_RUNTIME_MIRROR_ABSTRACT_METHOD_H_
+#define ART_RUNTIME_MIRROR_ABSTRACT_METHOD_H_
+
+#include "accessible_object.h"
+#include "gc_root.h"
+#include "object.h"
+#include "object_callbacks.h"
+#include "read_barrier_option.h"
+
+namespace art {
+
+struct AbstractMethodOffsets;
+
+namespace mirror {
+
+class ArtMethod;
+
+// C++ mirror of java.lang.reflect.AbstractMethod.
+class MANAGED AbstractMethod : public AccessibleObject {
+ public:
+  // Called from Constructor::CreateFromArtMethod, Method::CreateFromArtMethod.
+  bool CreateFromArtMethod(mirror::ArtMethod* method) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+
+  mirror::ArtMethod* GetArtMethod() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+  mirror::Class* GetDeclaringClass() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+
+ private:
+  static MemberOffset ArtMethodOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(AbstractMethod, art_method_));
+  }
+  static MemberOffset DeclaringClassOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(AbstractMethod, declaring_class_));
+  }
+  static MemberOffset DeclaringClassOfOverriddenMethodOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(AbstractMethod, declaring_class_of_overridden_method_));
+  }
+  static MemberOffset AccessFlagsOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(AbstractMethod, access_flags_));
+  }
+  static MemberOffset DexMethodIndexOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(AbstractMethod, dex_method_index_));
+  }
+
+  HeapReference<mirror::ArtMethod> art_method_;
+  HeapReference<mirror::Class> declaring_class_;
+  HeapReference<mirror::Class> declaring_class_of_overridden_method_;
+  uint32_t access_flags_;
+  uint32_t dex_method_index_;
+
+  friend struct art::AbstractMethodOffsets;  // for verifying offset information
+  DISALLOW_IMPLICIT_CONSTRUCTORS(AbstractMethod);
+};
+
+}  // namespace mirror
+}  // namespace art
+
+#endif  // ART_RUNTIME_MIRROR_ABSTRACT_METHOD_H_