1 /* 2 * Copyright (c) 2021-2024 Huawei Device Co., Ltd. 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 16 #ifndef ECMASCRIPT_LLVM_STACKMAP_PARSER_H 17 #define ECMASCRIPT_LLVM_STACKMAP_PARSER_H 18 19 #include <iostream> 20 #include <memory> 21 #include <tuple> 22 #include <unordered_map> 23 #include <vector> 24 25 #include "ecmascript/common.h" 26 #include "ecmascript/ecma_macros.h" 27 #include "ecmascript/stackmap/ark_stackmap.h" 28 #include "ecmascript/stackmap/ark_stackmap_builder.h" 29 #include "ecmascript/stackmap/llvm/llvm_stackmap_type.h" 30 31 namespace panda::ecmascript::kungfu { 32 class LLVMStackMapParser { 33 public: 34 bool PUBLIC_API CalculateStackMap(std::unique_ptr<uint8_t []> stackMapAddr); 35 bool PUBLIC_API CalculateStackMap(std::unique_ptr<uint8_t []> stackMapAddr, 36 uintptr_t hostCodeSectionAddr, 37 uintptr_t hostCodeSectionOffset); Print()38 void PUBLIC_API Print() const 39 { 40 if (IsLogEnabled()) { 41 llvmStackMap_.Print(); 42 } 43 } 44 IsLogEnabled()45 bool IsLogEnabled() const 46 { 47 return enableLog_; 48 } 49 50 LLVMStackMapParser(LLVMStackMapInfo &stackMapInfo, bool enableLog = false) stackMapInfo(stackMapInfo)51 : stackMapInfo(stackMapInfo), 52 enableLog_(enableLog) 53 { 54 fun2RecordNum_.clear(); 55 dataInfo_ = nullptr; 56 funAddr_.clear(); 57 fun2FpDelta_.clear(); 58 llvmStackMap_.head.stackmapversion = 0; 59 llvmStackMap_.head.reserved0 = 0; 60 llvmStackMap_.head.reserved1 = 0; 61 } ~LLVMStackMapParser()62 ~LLVMStackMapParser() 63 { 64 fun2RecordNum_.clear(); 65 dataInfo_ = nullptr; 66 funAddr_.clear(); 67 fun2FpDelta_.clear(); 68 } 69 70 private: 71 static const size_t GC_PAIR_SIZE = 2; 72 void FilterCallSiteInfo(LLVMStackMapType::CallSiteInfo &info); 73 void CalcCallSite(); 74 struct LLVMStackMap llvmStackMap_; 75 // use reference here to avoid extra copy 76 LLVMStackMapInfo &stackMapInfo; 77 std::vector<std::pair<uintptr_t, uint64_t>> fun2RecordNum_; 78 std::unique_ptr<DataInfo> dataInfo_; 79 bool enableLog_ {false}; 80 std::set<uintptr_t> funAddr_; 81 std::vector<LLVMStackMapType::Func2FpDelta> fun2FpDelta_; 82 std::map<uint32_t, std::vector<LLVMStackMapType::Func2FpDelta>> module2fun2FpDelta_; 83 std::map<uint32_t, std::set<uintptr_t>> module2funAddr_; 84 }; 85 } // namespace panda::ecmascript::kungfu 86 #endif // ECMASCRIPT_LLVM_STACKMAP_PARSER_H 87