blob: 4d2d0098e777bac05af2fca307fa6b24c37be26b (
plain)
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
|
// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <cstddef>
#include "core/hle/kernel/k_typed_address.h"
#include "core/hle/kernel/physical_memory.h"
namespace Kernel {
/**
* Represents executable data that may be loaded into a kernel process.
*
* A code set consists of three basic segments:
* - A code (AKA text) segment,
* - A read-only data segment (rodata)
* - A data segment
*
* The code segment is the portion of the object file that contains
* executable instructions.
*
* The read-only data segment in the portion of the object file that
* contains (as one would expect) read-only data, such as fixed constant
* values and data structures.
*
* The data segment is similar to the read-only data segment -- it contains
* variables and data structures that have predefined values, however,
* entities within this segment can be modified.
*/
struct CodeSet final {
/// A single segment within a code set.
struct Segment final {
/// The byte offset that this segment is located at.
std::size_t offset = 0;
/// The address to map this segment to.
KProcessAddress addr = 0;
/// The size of this segment in bytes.
u32 size = 0;
};
explicit CodeSet();
~CodeSet();
CodeSet(const CodeSet&) = delete;
CodeSet& operator=(const CodeSet&) = delete;
CodeSet(CodeSet&&) = default;
CodeSet& operator=(CodeSet&&) = default;
Segment& CodeSegment() {
return segments[0];
}
const Segment& CodeSegment() const {
return segments[0];
}
Segment& RODataSegment() {
return segments[1];
}
const Segment& RODataSegment() const {
return segments[1];
}
Segment& DataSegment() {
return segments[2];
}
const Segment& DataSegment() const {
return segments[2];
}
#ifdef HAS_NCE
Segment& PatchSegment() {
return patch_segment;
}
const Segment& PatchSegment() const {
return patch_segment;
}
#endif
/// The overall data that backs this code set.
Kernel::PhysicalMemory memory;
/// The segments that comprise this code set.
std::array<Segment, 3> segments;
#ifdef HAS_NCE
Segment patch_segment;
#endif
/// The entry point address for this code set.
KProcessAddress entrypoint = 0;
};
} // namespace Kernel
|
