1 /* 2 * Copyright (c) 2022 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_JSPANDAFILE_JS_PANDAFILE_MANAGER_H 17 #define ECMASCRIPT_JSPANDAFILE_JS_PANDAFILE_MANAGER_H 18 19 #include "ecmascript/jspandafile/js_pandafile.h" 20 #include "ecmascript/jspandafile/panda_file_translator.h" 21 #include "ecmascript/jspandafile/debug_info_extractor.h" 22 23 namespace panda { 24 namespace ecmascript { 25 class Program; 26 27 class PUBLIC_API JSPandaFileManager { 28 public: 29 static JSPandaFileManager *GetInstance(); 30 31 ~JSPandaFileManager(); 32 33 JSHandle<Program> GenerateProgram(EcmaVM *vm, const JSPandaFile *jsPandaFile, std::string_view entryPoint); 34 35 std::shared_ptr<JSPandaFile> LoadJSPandaFile(JSThread *thread, const CString &filename, std::string_view entryPoint, 36 bool needUpdate = false); 37 38 std::shared_ptr<JSPandaFile> LoadJSPandaFile(JSThread *thread, const CString &filename, std::string_view entryPoint, 39 const void *buffer, size_t size, bool needUpdate = false); 40 41 // load pandafile from secure mem 42 std::shared_ptr<JSPandaFile> LoadJSPandaFileSecure(JSThread *thread, const CString &filename, 43 std::string_view entryPoint, uint8_t *buffer, size_t size, 44 bool needUpdate = false); 45 46 std::shared_ptr<JSPandaFile> OpenJSPandaFile(const CString &filename); 47 48 std::shared_ptr<JSPandaFile> OpenJSPandaFileFromBuffer(uint8_t *buffer, size_t size, const CString &filename); 49 50 std::shared_ptr<JSPandaFile> NewJSPandaFile(const panda_file::File *pf, const CString &desc); 51 52 DebugInfoExtractor *GetJSPtExtractor(const JSPandaFile *jsPandaFile); 53 54 DebugInfoExtractor *GetJSPtExtractorAndExtract(const JSPandaFile *jsPandaFile); 55 56 DebugInfoExtractor *CpuProfilerGetJSPtExtractor(const JSPandaFile *jsPandaFile); 57 58 // for debugger 59 template<typename Callback> EnumerateJSPandaFiles(Callback cb)60 void EnumerateJSPandaFiles(Callback cb) 61 { 62 os::memory::LockHolder lock(jsPandaFileLock_); 63 for (const auto &item : loadedJSPandaFiles_) { 64 if (!cb(item.second.first.get())) { 65 return; 66 } 67 } 68 for (const auto &item : oldJSPandaFiles_) { 69 if (!cb(item.first.get())) { 70 return; 71 } 72 } 73 } 74 75 std::shared_ptr<JSPandaFile> FindJSPandaFile(const CString &filename); 76 std::shared_ptr<JSPandaFile> FindMergedJSPandaFile(); 77 void AddJSPandaFileVm(const EcmaVM *vm, const std::shared_ptr<JSPandaFile> &jsPandaFile); 78 void RemoveJSPandaFileVm(const EcmaVM *vm, const JSPandaFile *jsPandaFile); 79 80 private: 81 JSPandaFileManager() = default; 82 83 class JSPandaFileAllocator { 84 public: 85 static void *AllocateBuffer(size_t size); 86 static void FreeBuffer(void *mem); 87 }; 88 89 std::shared_ptr<JSPandaFile> GenerateJSPandaFile(JSThread *thread, const panda_file::File *pf, const CString &desc, 90 std::string_view entryPoint); 91 std::shared_ptr<JSPandaFile> GetJSPandaFile(const panda_file::File *pf); 92 std::shared_ptr<JSPandaFile> FindJSPandaFileWithChecksum(const CString &filename, uint32_t checksum); 93 std::shared_ptr<JSPandaFile> FindJSPandaFileUnlocked(const CString &filename); 94 void InsertJSPandaFileVmUnlocked(const EcmaVM *vm, const std::shared_ptr<JSPandaFile> &jsPandaFile); 95 void ObsoleteLoadedJSPandaFile(const CString &filename); 96 97 static void *AllocateBuffer(size_t size); 98 static void FreeBuffer(void *mem); 99 100 os::memory::RecursiveMutex jsPandaFileLock_; 101 // JSPandaFile was hold by ecma vm list. 102 using JSPandaFileVmsPair = std::pair<std::shared_ptr<JSPandaFile>, std::set<const EcmaVM *>>; 103 std::unordered_map<const CString, JSPandaFileVmsPair, CStringHash> loadedJSPandaFiles_; 104 // for plugin update. 105 std::unordered_map<std::shared_ptr<JSPandaFile>, std::set<const EcmaVM *>> oldJSPandaFiles_; 106 std::unordered_map<const JSPandaFile *, std::unique_ptr<DebugInfoExtractor>> extractors_; 107 108 friend class JSPandaFile; 109 }; 110 } // namespace ecmascript 111 } // namespace panda 112 #endif // ECMASCRIPT_JSPANDAFILE_JS_PANDAFILE_MANAGER_H 113