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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* 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.
*
* Authors: Nathan Binkert
* Steve Reinhardt
*/
#ifndef __OBJECT_FILE_HH__
#define __OBJECT_FILE_HH__
#include <limits>
#include <string>
#include "base/types.hh"
class Port;
class SymbolTable;
class ObjectFile
{
public:
enum Arch {
UnknownArch,
Alpha,
SPARC64,
SPARC32,
Mips,
X86_64,
I386,
Arm,
Thumb,
Power
};
enum OpSys {
UnknownOpSys,
Tru64,
Linux,
Solaris,
LinuxArmOABI
};
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(Port *memPort, Addr addrMask =
std::numeric_limits<Addr>::max());
virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr addrMask =
std::numeric_limits<Addr>::max()) = 0;
virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask =
std::numeric_limits<Addr>::max()) = 0;
virtual bool isDynamic() { return false; }
virtual bool hasTLS() { return false; }
Arch getArch() const { return arch; }
OpSys getOpSys() const { return opSys; }
protected:
struct Section {
Addr baseAddr;
uint8_t *fileImage;
size_t size;
};
Addr entry;
Addr globalPtr;
Section text;
Section data;
Section bss;
bool loadSection(Section *sec, Port *memPort, Addr addrMask);
void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; }
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; }
void setTextBase(Addr a) { text.baseAddr = a; }
};
ObjectFile *createObjectFile(const std::string &fname, bool raw = false);
#endif // __OBJECT_FILE_HH__
|
