99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
/*
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* Copyright (C) 2011 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_X86_CALLING_CONVENTION_X86_H_
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#define ART_COMPILER_JNI_QUICK_X86_CALLING_CONVENTION_X86_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 x86 {
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class X86ManagedRuntimeCallingConvention final : public ManagedRuntimeCallingConvention {
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public:
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X86ManagedRuntimeCallingConvention(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::k32),
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gpr_arg_count_(1u) {} // Skip EAX for ArtMethod*
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~X86ManagedRuntimeCallingConvention() override {}
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// Calling convention
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ManagedRegister ReturnRegister() const override;
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void ResetIterator(FrameOffset displacement) override;
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// Managed runtime calling convention
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ManagedRegister MethodRegister() override;
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void Next() 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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private:
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int gpr_arg_count_;
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DISALLOW_COPY_AND_ASSIGN(X86ManagedRuntimeCallingConvention);
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};
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// Implements the x86 cdecl calling convention.
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class X86JniCallingConvention final : public JniCallingConvention {
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public:
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X86JniCallingConvention(bool is_static,
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bool is_synchronized,
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bool is_fast_native,
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bool is_critical_native,
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const char* shorty);
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~X86JniCallingConvention() override {}
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// Calling convention
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ManagedRegister ReturnRegister() const override;
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ManagedRegister IntReturnRegister() const override;
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// JNI calling convention
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size_t FrameSize() const override;
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size_t OutFrameSize() const override;
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ArrayRef<const ManagedRegister> CalleeSaveRegisters() const override;
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ArrayRef<const ManagedRegister> CalleeSaveScratchRegisters() const override;
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ArrayRef<const ManagedRegister> ArgumentScratchRegisters() 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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// x86 needs to extend small return types.
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bool RequiresSmallResultTypeExtension() const override {
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return HasSmallReturnType();
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}
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// Locking argument register, used to pass the synchronization object for calls
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// to `JniLockObject()` and `JniUnlockObject()`.
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ManagedRegister LockingArgumentRegister() const override;
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// Hidden argument register, used to pass the method pointer for @CriticalNative call.
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ManagedRegister HiddenArgumentRegister() const override;
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// Whether to use tail call (used only for @CriticalNative).
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bool UseTailCall() const override;
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private:
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DISALLOW_COPY_AND_ASSIGN(X86JniCallingConvention);
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};
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} // namespace x86
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} // namespace art
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#endif // ART_COMPILER_JNI_QUICK_X86_CALLING_CONVENTION_X86_H_
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