1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
* Copyright (c) 2002-2004 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __OBJECT_FILE_HH__
#define __OBJECT_FILE_HH__
#include "targetarch/isa_traits.hh" // for Addr
class Memory;
class SymbolTable;
class ObjectFile
{
public:
enum Arch {
UnknownArch,
Alpha
};
enum OpSys {
UnknownOpSys,
Tru64,
Linux
};
protected:
const std::string filename;
int descriptor;
uint8_t *fileData;
size_t len;
Arch arch;
OpSys opSys;
ObjectFile(const std::string &_filename, int _fd,
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys);
public:
virtual ~ObjectFile();
void close();
virtual bool loadSections(Memory *mem, bool loadPhys = false) = 0;
virtual bool loadGlobalSymbols(SymbolTable *symtab) = 0;
virtual bool loadLocalSymbols(SymbolTable *symtab) = 0;
Arch getArch() const { return arch; }
OpSys getOpSys() const { return opSys; }
protected:
struct Section {
Addr baseAddr;
size_t size;
};
Addr entry;
Addr globalPtr;
Section text;
Section data;
Section bss;
public:
Addr entryPoint() const { return entry; }
Addr globalPointer() const { return globalPtr; }
Addr textBase() const { return text.baseAddr; }
Addr dataBase() const { return data.baseAddr; }
Addr bssBase() const { return bss.baseAddr; }
size_t textSize() const { return text.size; }
size_t dataSize() const { return data.size; }
size_t bssSize() const { return bss.size; }
};
ObjectFile *createObjectFile(const std::string &fname);
#endif // __OBJECT_FILE_HH__
|
