-
Notifications
You must be signed in to change notification settings - Fork 4.6k
/
memoryregion.h
132 lines (116 loc) · 4.04 KB
/
memoryregion.h
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
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
#if !defined(PAGE_SIZE) && (defined(__arm__) || defined(__aarch64__) || defined(__loongarch64)) || defined(__riscv)
extern long g_pageSize;
#define PAGE_SIZE g_pageSize
#endif
#undef PAGE_MASK
#define PAGE_MASK (~(PAGE_SIZE-1))
enum MEMORY_REGION_FLAGS : uint32_t
{
// PF_X = 0x01, // Execute
// PF_W = 0x02, // Write
// PF_R = 0x04, // Read
MEMORY_REGION_FLAG_PERMISSIONS_MASK = 0x0f,
MEMORY_REGION_FLAG_SHARED = 0x10,
MEMORY_REGION_FLAG_PRIVATE = 0x20
};
struct MemoryRegion
{
private:
uint32_t m_flags;
uint64_t m_startAddress;
uint64_t m_endAddress;
uint64_t m_offset;
// The name used for NT_FILE output
std::string m_fileName;
public:
MemoryRegion(uint32_t flags, uint64_t start, uint64_t end, uint64_t offset, const std::string& filename) :
m_flags(flags),
m_startAddress(start),
m_endAddress(end),
m_offset(offset),
m_fileName(filename)
{
assert((start & ~PAGE_MASK) == 0);
assert((end & ~PAGE_MASK) == 0);
}
MemoryRegion(uint32_t flags, uint64_t start, uint64_t end, uint64_t offset) :
m_flags(flags),
m_startAddress(start),
m_endAddress(end),
m_offset(offset)
{
}
MemoryRegion(uint32_t flags, uint64_t start, uint64_t end) :
m_flags(flags),
m_startAddress(start),
m_endAddress(end),
m_offset(0)
{
assert((start & ~PAGE_MASK) == 0);
assert((end & ~PAGE_MASK) == 0);
}
// copy with new file name constructor
MemoryRegion(const MemoryRegion& region, const std::string& fileName) :
m_flags(region.m_flags),
m_startAddress(region.m_startAddress),
m_endAddress(region.m_endAddress),
m_offset(region.m_offset),
m_fileName(fileName)
{
}
// copy with new flags constructor. The file name is not copied.
MemoryRegion(const MemoryRegion& region, uint32_t flags) :
m_flags(flags),
m_startAddress(region.m_startAddress),
m_endAddress(region.m_endAddress),
m_offset(region.m_offset)
{
}
// copy constructor
MemoryRegion(const MemoryRegion& region) :
m_flags(region.m_flags),
m_startAddress(region.m_startAddress),
m_endAddress(region.m_endAddress),
m_offset(region.m_offset),
m_fileName(region.m_fileName)
{
}
~MemoryRegion()
{
}
uint32_t Permissions() const { return m_flags & MEMORY_REGION_FLAG_PERMISSIONS_MASK; }
inline uint32_t Flags() const { return m_flags; }
inline uint64_t StartAddress() const { return m_startAddress; }
inline uint64_t EndAddress() const { return m_endAddress; }
inline uint64_t Size() const { return m_endAddress - m_startAddress; }
inline uint64_t SizeInPages() const { return Size() / PAGE_SIZE; }
inline uint64_t Offset() const { return m_offset; }
inline const std::string& FileName() const { return m_fileName; }
bool operator<(const MemoryRegion& rhs) const
{
return (m_startAddress < rhs.m_startAddress) && (m_endAddress <= rhs.m_startAddress);
}
// Returns true if "rhs" is wholly contained in this one
bool Contains(const MemoryRegion& rhs) const
{
return (m_startAddress <= rhs.m_startAddress) && (m_endAddress >= rhs.m_endAddress);
}
void Trace(const char* prefix = "") const
{
TRACE("%s%" PRIA PRIx64 " - %" PRIA PRIx64 " (%06" PRIx64 ") %" PRIA PRIx64 " %c%c%c%c%c %02x %s\n",
prefix,
m_startAddress,
m_endAddress,
Size() / PAGE_SIZE,
m_offset,
(m_flags & PF_R) ? 'r' : '-',
(m_flags & PF_W) ? 'w' : '-',
(m_flags & PF_X) ? 'x' : '-',
(m_flags & MEMORY_REGION_FLAG_SHARED) ? 's' : '-',
(m_flags & MEMORY_REGION_FLAG_PRIVATE) ? 'p' : '-',
m_flags,
m_fileName.c_str());
}
};