1 /* 2 * Copyright (C) 2023 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 #include "berberis/runtime_primitives/code_pool.h" 18 19 #include <cstring> 20 #include <mutex> 21 22 #include "berberis/base/exec_region_anonymous.h" 23 24 #if defined(__BIONIC__) 25 #include "berberis/base/exec_region_elf_backed.h" 26 #endif 27 28 namespace berberis { 29 AddRaw(const void * ptr,uint32_t size)30void* DataPool::AddRaw(const void* ptr, uint32_t size) { 31 void* result; 32 // Take the lock to allocate in arena. 33 { 34 std::lock_guard<std::mutex> lock(mutex_); 35 result = arena_.Alloc(size, /* align = */ 16); 36 } 37 memcpy(result, ptr, size); 38 return result; 39 } 40 ResetAllExecRegions()41void ResetAllExecRegions() { 42 GetDefaultCodePoolInstance()->ResetExecRegion(); 43 GetFunctionWrapperCodePoolInstance()->ResetExecRegion(); 44 } 45 GetDefaultCodePoolInstance()46CodePool<ExecRegionAnonymousFactory>* GetDefaultCodePoolInstance() { 47 static CodePool<ExecRegionAnonymousFactory> g_code_pool; 48 return &g_code_pool; 49 } 50 51 #if defined(__BIONIC__) GetFunctionWrapperCodePoolInstance()52CodePool<ExecRegionElfBackedFactory>* GetFunctionWrapperCodePoolInstance() { 53 static CodePool<ExecRegionElfBackedFactory> g_code_pool; 54 return &g_code_pool; 55 } 56 #else GetFunctionWrapperCodePoolInstance()57CodePool<ExecRegionAnonymousFactory>* GetFunctionWrapperCodePoolInstance() { 58 return GetDefaultCodePoolInstance(); 59 } 60 #endif 61 GetInstance()62DataPool* DataPool::GetInstance() { 63 static DataPool g_data_pool; 64 return &g_data_pool; 65 } 66 67 } // namespace berberis 68