1 /* 2 * Copyright 2010-2012, 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 #ifndef BCC_MCCACHEREADER_H 18 #define BCC_MCCACHEREADER_H 19 20 #include "ScriptCached.h" 21 22 #include <llvm/ADT/OwningPtr.h> 23 24 #include <map> 25 #include <string> 26 #include <utility> 27 28 #include <stddef.h> 29 #include <stdint.h> 30 31 struct MCO_Header; 32 33 namespace bcc { 34 class FileHandle; 35 class Script; 36 37 class MCCacheReader { 38 private: 39 FileHandle *mObjFile, *mInfoFile; 40 off_t mInfoFileSize; 41 42 MCO_Header *mpHeader; 43 MCO_DependencyTable *mpCachedDependTable; 44 MCO_PragmaList *mpPragmaList; 45 MCO_FuncTable *mpFuncTable; 46 47 MCO_String_Ptr *mpVarNameList; 48 MCO_String_Ptr *mpFuncNameList; 49 MCO_String_Ptr *mpForEachNameList; 50 51 llvm::OwningPtr<ScriptCached> mpResult; 52 53 std::map<std::string, 54 std::pair<uint32_t, unsigned char const *> > mDependencies; 55 56 bool mIsContextSlotNotAvail; 57 58 BCCSymbolLookupFn mpSymbolLookupFn; 59 void *mpSymbolLookupContext; 60 61 public: 62 MCCacheReader() 63 : mObjFile(NULL), mInfoFile(NULL), mInfoFileSize(0), mpHeader(NULL), 64 mpCachedDependTable(NULL), mpPragmaList(NULL), 65 mpVarNameList(NULL), mpFuncNameList(NULL), mpForEachNameList(NULL), 66 mIsContextSlotNotAvail(false) { 67 } 68 69 ~MCCacheReader(); 70 71 void addDependency(MCO_ResourceType resType, 72 std::string const &resName, 73 unsigned char const *sha1) { 74 mDependencies.insert(std::make_pair(resName, 75 std::make_pair((uint32_t)resType, sha1))); 76 } 77 78 ScriptCached *readCacheFile(FileHandle *objFile, FileHandle *infoFile, Script *s); 79 bool checkCacheFile(FileHandle *objFile, FileHandle *infoFile, Script *S); 80 81 bool isContextSlotNotAvail() const { 82 return mIsContextSlotNotAvail; 83 } 84 85 void registerSymbolCallback(BCCSymbolLookupFn pFn, void *pContext) { 86 mpSymbolLookupFn = pFn; 87 mpSymbolLookupContext = pContext; 88 } 89 90 private: 91 bool readHeader(); 92 bool readStringPool(); 93 bool readDependencyTable(); 94 bool readPragmaList(); 95 bool readObjectSlotList(); 96 bool readObjFile(); 97 bool readRelocationTable(); 98 99 bool readVarNameList(); 100 bool readFuncNameList(); 101 bool readForEachNameList(); 102 103 bool checkFileSize(); 104 bool checkHeader(); 105 bool checkMachineIntType(); 106 bool checkSectionOffsetAndSize(); 107 bool checkStringPool(); 108 bool checkDependency(); 109 bool checkContext(); 110 111 bool relocate(); 112 113 static void *resolveSymbolAdapter(void *context, char const *name); 114 115 }; 116 117 } // namespace bcc 118 119 #endif // BCC_MCCACHEREADER_H 120
