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
26namespace bcc {
27
28class FileBase;
29class ObjectLoaderImpl;
30class SymbolResolverInterface;
31
32class ObjectLoader {
33public:
34  enum SymbolType {
35    // TODO: More types.
36    kFunctionType,
37    kUnknownType,
38  };
39
40private:
41  ObjectLoaderImpl *mImpl;
42
43  void *mDebugImage;
44
45  ObjectLoader() : mImpl(NULL), mDebugImage(0) { }
46
47public:
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