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 #include "LLVMRoutine.hpp" 16 17 #include "../Common/Memory.hpp" 18 #include "../Common/Thread.hpp" 19 #include "../Common/Types.hpp" 20 21 namespace sw 22 { 23 LLVMRoutine::LLVMRoutine(int bufferSize) : bufferSize(bufferSize) 24 { 25 void *memory = allocateExecutable(bufferSize); 26 27 buffer = memory; 28 entry = memory; 29 functionSize = bufferSize; // Updated by LLVMRoutineManager::endFunctionBody 30 } 31 32 LLVMRoutine::~LLVMRoutine() 33 { 34 deallocateExecutable(buffer, bufferSize); 35 } 36 37 const void *LLVMRoutine::getEntry() 38 { 39 return entry; 40 } 41 42 int LLVMRoutine::getCodeSize() 43 { 44 return functionSize - static_cast<int>((uintptr_t)entry - (uintptr_t)buffer); 45 } 46 } 47
