upload android base code part3

android/art/runtime/mirror/emulated_stack_frame.h

@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2016 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_EMULATED_STACK_FRAME_H_
+#define ART_RUNTIME_MIRROR_EMULATED_STACK_FRAME_H_
+
+#include "dex_instruction.h"
+#include "method_type.h"
+#include "object.h"
+#include "stack.h"
+#include "string.h"
+#include "utils.h"
+
+namespace art {
+
+struct EmulatedStackFrameOffsets;
+
+namespace mirror {
+
+// C++ mirror of dalvik.system.EmulatedStackFrame
+class MANAGED EmulatedStackFrame : public Object {
+ public:
+  // Creates an emulated stack frame whose type is |frame_type| from
+  // a shadow frame.
+  template <bool is_range>
+  static mirror::EmulatedStackFrame* CreateFromShadowFrameAndArgs(
+      Thread* self,
+      Handle<mirror::MethodType> args_type,
+      Handle<mirror::MethodType> frame_type,
+      const ShadowFrame& caller_frame,
+      const uint32_t first_src_reg,
+      const uint32_t (&arg)[Instruction::kMaxVarArgRegs]) REQUIRES_SHARED(Locks::mutator_lock_);
+
+  // Writes the contents of this emulated stack frame to the |callee_frame|
+  // whose type is |callee_type|, starting at |first_dest_reg|.
+  bool WriteToShadowFrame(
+      Thread* self,
+      Handle<mirror::MethodType> callee_type,
+      const uint32_t first_dest_reg,
+      ShadowFrame* callee_frame) REQUIRES_SHARED(Locks::mutator_lock_);
+
+  // Sets |value| to the return value written to this emulated stack frame (if any).
+  void GetReturnValue(Thread* self, JValue* value) REQUIRES_SHARED(Locks::mutator_lock_);
+
+  // Sets the return value slot of this emulated stack frame to |value|.
+  void SetReturnValue(Thread* self, const JValue& value) REQUIRES_SHARED(Locks::mutator_lock_);
+
+  mirror::MethodType* GetType() REQUIRES_SHARED(Locks::mutator_lock_) {
+    return GetFieldObject<MethodType>(OFFSET_OF_OBJECT_MEMBER(EmulatedStackFrame, type_));
+  }
+
+  mirror::Object* GetReceiver() REQUIRES_SHARED(Locks::mutator_lock_) {
+    return GetReferences()->Get(0);
+  }
+
+  static void SetClass(Class* klass) REQUIRES_SHARED(Locks::mutator_lock_);
+  static void ResetClass() REQUIRES_SHARED(Locks::mutator_lock_);
+  static void VisitRoots(RootVisitor* visitor) REQUIRES_SHARED(Locks::mutator_lock_);
+
+ private:
+  static mirror::Class* StaticClass() REQUIRES_SHARED(Locks::mutator_lock_) {
+    return static_class_.Read();
+  }
+
+  mirror::ObjectArray<mirror::Object>* GetReferences() REQUIRES_SHARED(Locks::mutator_lock_) {
+    return GetFieldObject<mirror::ObjectArray<mirror::Object>>(
+        OFFSET_OF_OBJECT_MEMBER(EmulatedStackFrame, references_));
+  }
+
+  mirror::ByteArray* GetStackFrame() REQUIRES_SHARED(Locks::mutator_lock_) {
+    return GetFieldObject<mirror::ByteArray>(
+        OFFSET_OF_OBJECT_MEMBER(EmulatedStackFrame, stack_frame_));
+  }
+
+  static MemberOffset CallsiteTypeOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(EmulatedStackFrame, callsite_type_));
+  }
+
+  static MemberOffset TypeOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(EmulatedStackFrame, type_));
+  }
+
+  static MemberOffset ReferencesOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(EmulatedStackFrame, references_));
+  }
+
+  static MemberOffset StackFrameOffset() {
+    return MemberOffset(OFFSETOF_MEMBER(EmulatedStackFrame, stack_frame_));
+  }
+
+  HeapReference<mirror::MethodType> callsite_type_;
+  HeapReference<mirror::ObjectArray<mirror::Object>> references_;
+  HeapReference<mirror::ByteArray> stack_frame_;
+  HeapReference<mirror::MethodType> type_;
+
+  static GcRoot<mirror::Class> static_class_;  // dalvik.system.EmulatedStackFrame.class
+
+  friend struct art::EmulatedStackFrameOffsets;  // for verifying offset information
+  DISALLOW_IMPLICIT_CONSTRUCTORS(EmulatedStackFrame);
+};
+
+}  // namespace mirror
+}  // namespace art
+
+#endif  // ART_RUNTIME_MIRROR_EMULATED_STACK_FRAME_H_