95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_MIRROR_EMULATED_STACK_FRAME_H_
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#define ART_RUNTIME_MIRROR_EMULATED_STACK_FRAME_H_
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#include "base/utils.h"
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#include "dex/dex_instruction.h"
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#include "handle.h"
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#include "object.h"
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#include "stack.h"
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namespace art {
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struct EmulatedStackFrameOffsets;
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namespace mirror {
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class MethodType;
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// C++ mirror of dalvik.system.EmulatedStackFrame
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class MANAGED EmulatedStackFrame : public Object {
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public:
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MIRROR_CLASS("Ldalvik/system/EmulatedStackFrame;");
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// Creates an emulated stack frame whose type is |frame_type| from
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// a shadow frame.
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static ObjPtr<mirror::EmulatedStackFrame> CreateFromShadowFrameAndArgs(
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Thread* self,
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Handle<mirror::MethodType> args_type,
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Handle<mirror::MethodType> frame_type,
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const ShadowFrame& caller_frame,
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const InstructionOperands* const operands) REQUIRES_SHARED(Locks::mutator_lock_);
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// Writes the contents of this emulated stack frame to the |callee_frame|
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// whose type is |callee_type|, starting at |first_dest_reg|.
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void WriteToShadowFrame(
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Thread* self,
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Handle<mirror::MethodType> callee_type,
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const uint32_t first_dest_reg,
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ShadowFrame* callee_frame) REQUIRES_SHARED(Locks::mutator_lock_);
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// Sets |value| to the return value written to this emulated stack frame (if any).
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void GetReturnValue(Thread* self, JValue* value) REQUIRES_SHARED(Locks::mutator_lock_);
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// Sets the return value slot of this emulated stack frame to |value|.
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void SetReturnValue(Thread* self, const JValue& value) REQUIRES_SHARED(Locks::mutator_lock_);
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ObjPtr<mirror::MethodType> GetType() REQUIRES_SHARED(Locks::mutator_lock_);
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ObjPtr<mirror::Object> GetReceiver() REQUIRES_SHARED(Locks::mutator_lock_);
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private:
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ObjPtr<mirror::ObjectArray<mirror::Object>> GetReferences() REQUIRES_SHARED(Locks::mutator_lock_);
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ObjPtr<mirror::ByteArray> GetStackFrame() REQUIRES_SHARED(Locks::mutator_lock_);
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static MemberOffset TypeOffset() {
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return MemberOffset(OFFSETOF_MEMBER(EmulatedStackFrame, type_));
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}
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static MemberOffset ReferencesOffset() {
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return MemberOffset(OFFSETOF_MEMBER(EmulatedStackFrame, references_));
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}
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static MemberOffset StackFrameOffset() {
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return MemberOffset(OFFSETOF_MEMBER(EmulatedStackFrame, stack_frame_));
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}
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HeapReference<mirror::ObjectArray<mirror::Object>> references_;
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HeapReference<mirror::ByteArray> stack_frame_;
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HeapReference<mirror::MethodType> type_;
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friend struct art::EmulatedStackFrameOffsets; // for verifying offset information
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DISALLOW_IMPLICIT_CONSTRUCTORS(EmulatedStackFrame);
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};
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} // namespace mirror
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} // namespace art
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#endif // ART_RUNTIME_MIRROR_EMULATED_STACK_FRAME_H_
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