1 /* 2 * Copyright 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_EXECUTION_ENGINE_OBJECT_LOADER_H 18 #define BCC_EXECUTION_ENGINE_OBJECT_LOADER_H 19 20 #include <cstddef> 21 22 #include "bcc/Support/Log.h" 23 24 #include <utils/Vector.h> 25 26 namespace bcc { 27 28 class FileBase; 29 class ObjectLoaderImpl; 30 class SymbolResolverInterface; 31 32 class ObjectLoader { 33 public: 34 enum SymbolType { 35 // TODO: More types. 36 kFunctionType, 37 kUnknownType, 38 }; 39 40 private: 41 ObjectLoaderImpl *mImpl; 42 43 void *mDebugImage; 44 ObjectLoader()45 ObjectLoader() : mImpl(NULL), mDebugImage(0) { } 46 47 public: 48 // Load from a in-memory object. pName is a descriptive name of this memory. 49 static ObjectLoader *Load(void *pMemStart, size_t pMemSize, const char *pName, 50 SymbolResolverInterface &pResolver, 51 bool pEnableGDBDebug); 52 53 // Load from a file. 54 static ObjectLoader *Load(FileBase &pFile, 55 SymbolResolverInterface &pResolver, 56 bool pEnableGDBDebug); 57 58 void *getSymbolAddress(const char *pName) const; 59 60 size_t getSymbolSize(const char *pName) const; 61 62 // Get the symbol name where the symbol is of the type pType. If kUnknownType 63 // is given, it returns all symbols' names in the object. 64 bool getSymbolNameList(android::Vector<const char *>& pNameList, 65 SymbolType pType = kUnknownType) const; 66 67 ~ObjectLoader(); 68 }; 69 70 } // namespace bcc 71 72 #endif // BCC_EXECUTION_ENGINE_OBJECT_LOADER_H 73