1 /* 2 * Copyright (C) 2011 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_ARM_CALLING_CONVENTION_ARM_H_ 18 #define ART_COMPILER_JNI_QUICK_ARM_CALLING_CONVENTION_ARM_H_ 19 20 #include "jni/quick/calling_convention.h" 21 22 namespace art { 23 namespace arm { 24 25 class ArmManagedRuntimeCallingConvention : public ManagedRuntimeCallingConvention { 26 public: 27 ArmManagedRuntimeCallingConvention(bool is_static, bool is_synchronized, const char* shorty) 28 : ManagedRuntimeCallingConvention(is_static, is_synchronized, shorty) {} 29 virtual ~ArmManagedRuntimeCallingConvention() {} 30 // Calling convention 31 virtual ManagedRegister ReturnRegister(); 32 virtual ManagedRegister InterproceduralScratchRegister(); 33 // Managed runtime calling convention 34 virtual ManagedRegister MethodRegister(); 35 virtual bool IsCurrentParamInRegister(); 36 virtual bool IsCurrentParamOnStack(); 37 virtual ManagedRegister CurrentParamRegister(); 38 virtual FrameOffset CurrentParamStackOffset(); 39 virtual const std::vector<ManagedRegister>& EntrySpills(); 40 41 private: 42 std::vector<ManagedRegister> entry_spills_; 43 44 DISALLOW_COPY_AND_ASSIGN(ArmManagedRuntimeCallingConvention); 45 }; 46 47 class ArmJniCallingConvention : public JniCallingConvention { 48 public: 49 explicit ArmJniCallingConvention(bool is_static, bool is_synchronized, const char* shorty); 50 virtual ~ArmJniCallingConvention() {} 51 // Calling convention 52 virtual ManagedRegister ReturnRegister(); 53 virtual ManagedRegister IntReturnRegister(); 54 virtual ManagedRegister InterproceduralScratchRegister(); 55 // JNI calling convention 56 virtual void Next(); // Override default behavior for AAPCS 57 virtual size_t FrameSize(); 58 virtual size_t OutArgSize(); 59 virtual const std::vector<ManagedRegister>& CalleeSaveRegisters() const { 60 return callee_save_regs_; 61 } 62 virtual ManagedRegister ReturnScratchRegister() const; 63 virtual uint32_t CoreSpillMask() const; 64 virtual uint32_t FpSpillMask() const { 65 return 0; // Floats aren't spilled in JNI down call 66 } 67 virtual bool IsCurrentParamInRegister(); 68 virtual bool IsCurrentParamOnStack(); 69 virtual ManagedRegister CurrentParamRegister(); 70 virtual FrameOffset CurrentParamStackOffset(); 71 72 protected: 73 virtual size_t NumberOfOutgoingStackArgs(); 74 75 private: 76 // TODO: these values aren't unique and can be shared amongst instances 77 std::vector<ManagedRegister> callee_save_regs_; 78 79 // Padding to ensure longs and doubles are not split in AAPCS 80 size_t padding_; 81 82 DISALLOW_COPY_AND_ASSIGN(ArmJniCallingConvention); 83 }; 84 85 } // namespace arm 86 } // namespace art 87 88 #endif // ART_COMPILER_JNI_QUICK_ARM_CALLING_CONVENTION_ARM_H_ 89
