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87 lines
2.5 KiB
87 lines
2.5 KiB
/*
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* Copyright (C) 2019 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_NTERP_HELPERS_H_
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#define ART_RUNTIME_NTERP_HELPERS_H_
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#include "quick/quick_method_frame_info.h"
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namespace art {
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class ArtMethod;
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/**
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* The frame size nterp will use for the given method.
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*/
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size_t NterpGetFrameSize(ArtMethod* method, InstructionSet isa = kRuntimeISA)
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REQUIRES_SHARED(Locks::mutator_lock_);
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/**
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* Returns the QuickMethodFrameInfo of the given frame corresponding to the
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* given method.
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*/
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QuickMethodFrameInfo NterpFrameInfo(ArtMethod** frame)
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REQUIRES_SHARED(Locks::mutator_lock_);
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/**
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* Returns the dex PC at which the given nterp frame is executing.
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*/
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uint32_t NterpGetDexPC(ArtMethod** frame)
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REQUIRES_SHARED(Locks::mutator_lock_);
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/**
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* Returns the reference array to be used by the GC to visit references in an
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* nterp frame.
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*/
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uintptr_t NterpGetReferenceArray(ArtMethod** frame)
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REQUIRES_SHARED(Locks::mutator_lock_);
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/**
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* Returns the dex register array to be used by the GC to update references in
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* an nterp frame.
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*/
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uintptr_t NterpGetRegistersArray(ArtMethod** frame)
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REQUIRES_SHARED(Locks::mutator_lock_);
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/**
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* Returns the nterp landing pad for catching an exception.
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*/
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uintptr_t NterpGetCatchHandler();
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/**
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* Returns the value of dex register number `vreg` in the given frame.
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*/
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uint32_t NterpGetVReg(ArtMethod** frame, uint16_t vreg)
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REQUIRES_SHARED(Locks::mutator_lock_);
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/**
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* Returns the value of dex register number `vreg` in the given frame if it is a
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* reference. Return 0 otehrwise.
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*/
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uint32_t NterpGetVRegReference(ArtMethod** frame, uint16_t vreg)
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REQUIRES_SHARED(Locks::mutator_lock_);
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/**
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* Returns whether the given method can run with nterp. The instruction set can
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* be passed for cross-compilation.
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*/
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bool CanMethodUseNterp(ArtMethod* method, InstructionSet isa = kRuntimeISA)
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REQUIRES_SHARED(Locks::mutator_lock_);
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} // namespace art
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#endif // ART_RUNTIME_NTERP_HELPERS_H_
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