object_file.hh (9261:f795ce1feb5b) object_file.hh (9641:2285b98847d7)
1/*
2 * Copyright (c) 2002-2004 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 * Steve Reinhardt
30 */
31
32#ifndef __OBJECT_FILE_HH__
33#define __OBJECT_FILE_HH__
34
35#include <limits>
36#include <string>
37
38#include "base/types.hh"
39
40class PortProxy;
41class SymbolTable;
42
43class ObjectFile
44{
45 public:
46
47 enum Arch {
48 UnknownArch,
49 Alpha,
50 SPARC64,
51 SPARC32,
52 Mips,
53 X86_64,
54 I386,
55 Arm,
56 Thumb,
57 Power
58 };
59
60 enum OpSys {
61 UnknownOpSys,
62 Tru64,
63 Linux,
64 Solaris,
65 LinuxArmOABI
66 };
67
68 protected:
69 const std::string filename;
70 int descriptor;
71 uint8_t *fileData;
72 size_t len;
73
74 Arch arch;
75 OpSys opSys;
76
77 ObjectFile(const std::string &_filename, int _fd,
78 size_t _len, uint8_t *_data,
79 Arch _arch, OpSys _opSys);
80
81 public:
82 virtual ~ObjectFile();
83
84 void close();
85
86 virtual bool loadSections(PortProxy& memProxy, Addr addrMask =
87 std::numeric_limits<Addr>::max());
88 virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr addrMask =
89 std::numeric_limits<Addr>::max()) = 0;
90 virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask =
91 std::numeric_limits<Addr>::max()) = 0;
1/*
2 * Copyright (c) 2002-2004 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 * Steve Reinhardt
30 */
31
32#ifndef __OBJECT_FILE_HH__
33#define __OBJECT_FILE_HH__
34
35#include <limits>
36#include <string>
37
38#include "base/types.hh"
39
40class PortProxy;
41class SymbolTable;
42
43class ObjectFile
44{
45 public:
46
47 enum Arch {
48 UnknownArch,
49 Alpha,
50 SPARC64,
51 SPARC32,
52 Mips,
53 X86_64,
54 I386,
55 Arm,
56 Thumb,
57 Power
58 };
59
60 enum OpSys {
61 UnknownOpSys,
62 Tru64,
63 Linux,
64 Solaris,
65 LinuxArmOABI
66 };
67
68 protected:
69 const std::string filename;
70 int descriptor;
71 uint8_t *fileData;
72 size_t len;
73
74 Arch arch;
75 OpSys opSys;
76
77 ObjectFile(const std::string &_filename, int _fd,
78 size_t _len, uint8_t *_data,
79 Arch _arch, OpSys _opSys);
80
81 public:
82 virtual ~ObjectFile();
83
84 void close();
85
86 virtual bool loadSections(PortProxy& memProxy, Addr addrMask =
87 std::numeric_limits<Addr>::max());
88 virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr addrMask =
89 std::numeric_limits<Addr>::max()) = 0;
90 virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask =
91 std::numeric_limits<Addr>::max()) = 0;
92 virtual bool loadWeakSymbols(SymbolTable *symtab, Addr addrMask =
93 std::numeric_limits<Addr>::max())
94 { return false; }
92
93 virtual bool isDynamic() { return false; }
94 virtual bool hasTLS() { return false; }
95
96 Arch getArch() const { return arch; }
97 OpSys getOpSys() const { return opSys; }
98
99 protected:
100
101 struct Section {
102 Addr baseAddr;
103 uint8_t *fileImage;
104 size_t size;
105 };
106
107 Addr entry;
108 Addr globalPtr;
109
110 Section text;
111 Section data;
112 Section bss;
113
114 bool loadSection(Section *sec, PortProxy& memProxy, Addr addrMask);
115 void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; }
116
117 public:
118 Addr entryPoint() const { return entry; }
119
120 Addr globalPointer() const { return globalPtr; }
121
122 Addr textBase() const { return text.baseAddr; }
123 Addr dataBase() const { return data.baseAddr; }
124 Addr bssBase() const { return bss.baseAddr; }
125
126 size_t textSize() const { return text.size; }
127 size_t dataSize() const { return data.size; }
128 size_t bssSize() const { return bss.size; }
129
130 /* This function allows you to override the base address where
131 * a binary is going to be loaded or set it if the binary is just a
132 * blob that doesn't include an object header.
133 * @param a address to load the binary/text section at
134 */
135 void setTextBase(Addr a) { text.baseAddr = a; }
136};
137
138ObjectFile *createObjectFile(const std::string &fname, bool raw = false);
139
140
141#endif // __OBJECT_FILE_HH__
95
96 virtual bool isDynamic() { return false; }
97 virtual bool hasTLS() { return false; }
98
99 Arch getArch() const { return arch; }
100 OpSys getOpSys() const { return opSys; }
101
102 protected:
103
104 struct Section {
105 Addr baseAddr;
106 uint8_t *fileImage;
107 size_t size;
108 };
109
110 Addr entry;
111 Addr globalPtr;
112
113 Section text;
114 Section data;
115 Section bss;
116
117 bool loadSection(Section *sec, PortProxy& memProxy, Addr addrMask);
118 void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; }
119
120 public:
121 Addr entryPoint() const { return entry; }
122
123 Addr globalPointer() const { return globalPtr; }
124
125 Addr textBase() const { return text.baseAddr; }
126 Addr dataBase() const { return data.baseAddr; }
127 Addr bssBase() const { return bss.baseAddr; }
128
129 size_t textSize() const { return text.size; }
130 size_t dataSize() const { return data.size; }
131 size_t bssSize() const { return bss.size; }
132
133 /* This function allows you to override the base address where
134 * a binary is going to be loaded or set it if the binary is just a
135 * blob that doesn't include an object header.
136 * @param a address to load the binary/text section at
137 */
138 void setTextBase(Addr a) { text.baseAddr = a; }
139};
140
141ObjectFile *createObjectFile(const std::string &fname, bool raw = false);
142
143
144#endif // __OBJECT_FILE_HH__