1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_COMPILER_JNI_QUICK_X86_64_CALLING_CONVENTION_X86_64_H_ 18 #define ART_COMPILER_JNI_QUICK_X86_64_CALLING_CONVENTION_X86_64_H_ 19 20 #include "base/enums.h" 21 #include "jni/quick/calling_convention.h" 22 23 namespace art { 24 namespace x86_64 { 25 26 class X86_64ManagedRuntimeCallingConvention final : public ManagedRuntimeCallingConvention { 27 public: X86_64ManagedRuntimeCallingConvention(bool is_static,bool is_synchronized,const char * shorty)28 X86_64ManagedRuntimeCallingConvention(bool is_static, bool is_synchronized, const char* shorty) 29 : ManagedRuntimeCallingConvention(is_static, 30 is_synchronized, 31 shorty, 32 PointerSize::k64) {} ~X86_64ManagedRuntimeCallingConvention()33 ~X86_64ManagedRuntimeCallingConvention() override {} 34 // Calling convention 35 ManagedRegister ReturnRegister() override; 36 ManagedRegister InterproceduralScratchRegister() const override; 37 // Managed runtime calling convention 38 ManagedRegister MethodRegister() override; 39 bool IsCurrentParamInRegister() override; 40 bool IsCurrentParamOnStack() override; 41 ManagedRegister CurrentParamRegister() override; 42 FrameOffset CurrentParamStackOffset() override; 43 const ManagedRegisterEntrySpills& EntrySpills() override; 44 private: 45 ManagedRegisterEntrySpills entry_spills_; 46 DISALLOW_COPY_AND_ASSIGN(X86_64ManagedRuntimeCallingConvention); 47 }; 48 49 class X86_64JniCallingConvention final : public JniCallingConvention { 50 public: 51 X86_64JniCallingConvention(bool is_static, 52 bool is_synchronized, 53 bool is_critical_native, 54 const char* shorty); ~X86_64JniCallingConvention()55 ~X86_64JniCallingConvention() override {} 56 // Calling convention 57 ManagedRegister ReturnRegister() override; 58 ManagedRegister IntReturnRegister() override; 59 ManagedRegister InterproceduralScratchRegister() const override; 60 // JNI calling convention 61 size_t FrameSize() const override; 62 size_t OutArgSize() const override; 63 ArrayRef<const ManagedRegister> CalleeSaveRegisters() const override; 64 ManagedRegister ReturnScratchRegister() const override; 65 uint32_t CoreSpillMask() const override; 66 uint32_t FpSpillMask() const override; 67 bool IsCurrentParamInRegister() override; 68 bool IsCurrentParamOnStack() override; 69 ManagedRegister CurrentParamRegister() override; 70 FrameOffset CurrentParamStackOffset() override; 71 72 // x86-64 needs to extend small return types. RequiresSmallResultTypeExtension()73 bool RequiresSmallResultTypeExtension() const override { 74 return HasSmallReturnType(); 75 } 76 77 // Hidden argument register, used to pass the method pointer for @CriticalNative call. 78 ManagedRegister HiddenArgumentRegister() const override; 79 80 // Whether to use tail call (used only for @CriticalNative). 81 bool UseTailCall() const override; 82 83 private: 84 DISALLOW_COPY_AND_ASSIGN(X86_64JniCallingConvention); 85 }; 86 87 } // namespace x86_64 88 } // namespace art 89 90 #endif // ART_COMPILER_JNI_QUICK_X86_64_CALLING_CONVENTION_X86_64_H_ 91