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_ELF_OBJECT_LOADER_IMPL_H
18 #define BCC_EXECUTION_ENGINE_ELF_OBJECT_LOADER_IMPL_H
19 
20 #include "ObjectLoaderImpl.h"
21 
22 // ELFObject and ELFSectionSymTab comes from librsloader. They're both
23 // defined under global scope without a namespace enclosed.
24 template <unsigned Bitwidth>
25 class ELFObject;
26 
27 template <unsigned Bitwidth>
28 class ELFSectionSymTab;
29 
30 namespace bcc {
31 
32 class ELFObjectLoaderImpl : public ObjectLoaderImpl {
33 private:
34 #ifdef __LP64__
35   ELFObject<64> *mObject;
36   ELFSectionSymTab<64> *mSymTab;
37 #else
38   ELFObject<32> *mObject;
39   ELFSectionSymTab<32> *mSymTab;
40 #endif
41 
42 public:
ELFObjectLoaderImpl()43   ELFObjectLoaderImpl() : ObjectLoaderImpl(), mObject(NULL), mSymTab(NULL) { }
44 
45   virtual bool load(const void *pMem, size_t pMemSize);
46 
47   virtual bool relocate(SymbolResolverInterface &pResolver);
48 
49   virtual bool prepareDebugImage(void *pDebugImg, size_t pDebugImgSize);
50 
51   virtual void *getSymbolAddress(const char *pName) const;
52 
53   virtual size_t getSymbolSize(const char *pName) const;
54 
55   virtual bool getSymbolNameList(android::Vector<const char *>& pNameList,
56                                  ObjectLoader::SymbolType pType) const;
57   ~ELFObjectLoaderImpl();
58 };
59 
60 } // end namespace bcc
61 
62 #endif // BCC_EXECUTION_ENGINE_ELF_OBJECT_LOADER_IMPL_H
63