1// Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15#ifndef sw_RoutineManager_hpp 16#define sw_RoutineManager_hpp 17 18#include "llvm/GlobalValue.h" 19#include "llvm/ExecutionEngine/JITMemoryManager.h" 20 21namespace sw 22{ 23 class Routine; 24 25 class RoutineManager : public llvm::JITMemoryManager 26 { 27 public: 28 RoutineManager(); 29 30 virtual ~RoutineManager(); 31 32 virtual void AllocateGOT(); 33 34 virtual uint8_t *allocateStub(const llvm::GlobalValue *function, unsigned stubSize, unsigned alignment); 35 virtual uint8_t *startFunctionBody(const llvm::Function *function, uintptr_t &actualSize); 36 virtual void endFunctionBody(const llvm::Function *function, uint8_t *functionStart, uint8_t *functionEnd); 37 virtual uint8_t *startExceptionTable(const llvm::Function *function, uintptr_t &ActualSize); 38 virtual void endExceptionTable(const llvm::Function *function, uint8_t *tableStart, uint8_t *tableEnd, uint8_t *frameRegister); 39 virtual uint8_t *getGOTBase() const; 40 virtual uint8_t *allocateSpace(intptr_t Size, unsigned Alignment); 41 virtual uint8_t *allocateGlobal(uintptr_t Size, unsigned int Alignment); 42 virtual void deallocateFunctionBody(void *Body); 43 virtual void deallocateExceptionTable(void *ET); 44 virtual void setMemoryWritable(); 45 virtual void setMemoryExecutable(); 46 virtual void setPoisonMemory(bool poison); 47 48 Routine *acquireRoutine(void *entry); 49 50 private: 51 Routine *routine; 52 53 static volatile int averageInstructionSize; 54 }; 55} 56 57#endif // sw_RoutineManager_hpp 58