/*
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* Copyright (C) 2014 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_COMPILER_JNI_QUICK_ARM64_CALLING_CONVENTION_ARM64_H_
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#define ART_COMPILER_JNI_QUICK_ARM64_CALLING_CONVENTION_ARM64_H_
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#include "base/enums.h"
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#include "jni/quick/calling_convention.h"
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namespace art {
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namespace arm64 {
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constexpr size_t kFramePointerSize = static_cast<size_t>(PointerSize::k64);
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class Arm64ManagedRuntimeCallingConvention final : public ManagedRuntimeCallingConvention {
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public:
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Arm64ManagedRuntimeCallingConvention(bool is_static, bool is_synchronized, const char* shorty)
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: ManagedRuntimeCallingConvention(is_static,
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is_synchronized,
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shorty,
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PointerSize::k64) {}
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~Arm64ManagedRuntimeCallingConvention() override {}
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// Calling convention
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ManagedRegister ReturnRegister() override;
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ManagedRegister InterproceduralScratchRegister() override;
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// Managed runtime calling convention
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ManagedRegister MethodRegister() override;
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bool IsCurrentParamInRegister() override;
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bool IsCurrentParamOnStack() override;
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ManagedRegister CurrentParamRegister() override;
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FrameOffset CurrentParamStackOffset() override;
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const ManagedRegisterEntrySpills& EntrySpills() override;
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private:
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ManagedRegisterEntrySpills entry_spills_;
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DISALLOW_COPY_AND_ASSIGN(Arm64ManagedRuntimeCallingConvention);
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};
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class Arm64JniCallingConvention final : public JniCallingConvention {
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public:
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Arm64JniCallingConvention(bool is_static,
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bool is_synchronized,
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bool is_critical_native,
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const char* shorty);
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~Arm64JniCallingConvention() override {}
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// Calling convention
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ManagedRegister ReturnRegister() override;
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ManagedRegister IntReturnRegister() override;
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ManagedRegister InterproceduralScratchRegister() override;
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// JNI calling convention
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size_t FrameSize() override;
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size_t OutArgSize() override;
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ArrayRef<const ManagedRegister> CalleeSaveRegisters() const override;
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ManagedRegister ReturnScratchRegister() const override;
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uint32_t CoreSpillMask() const override;
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uint32_t FpSpillMask() const override;
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bool IsCurrentParamInRegister() override;
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bool IsCurrentParamOnStack() override;
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ManagedRegister CurrentParamRegister() override;
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FrameOffset CurrentParamStackOffset() override;
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// aarch64 calling convention leaves upper bits undefined.
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bool RequiresSmallResultTypeExtension() const override {
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return true;
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}
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protected:
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size_t NumberOfOutgoingStackArgs() override;
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private:
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DISALLOW_COPY_AND_ASSIGN(Arm64JniCallingConvention);
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};
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} // namespace arm64
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} // namespace art
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#endif // ART_COMPILER_JNI_QUICK_ARM64_CALLING_CONVENTION_ARM64_H_
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