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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===- MachOUniversal.h - Mach-O universal binaries -------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares Mach-O fat/universal binaries.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_OBJECT_MACHOUNIVERSAL_H
#define LLVM_OBJECT_MACHOUNIVERSAL_H
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/BinaryFormat/MachO.h"
#include "llvm/Object/Archive.h"
#include "llvm/Object/Binary.h"
#include "llvm/Object/MachO.h"
namespace llvm {
class StringRef;
class Module;
class LLVMContext;
namespace object {
class IRObjectFile;
class MachOUniversalBinary : public Binary {
virtual void anchor();
uint32_t Magic;
uint32_t NumberOfObjects;
public:
static constexpr uint32_t MaxSectionAlignment = 15; /* 2**15 or 0x8000 */
class ObjectForArch {
const MachOUniversalBinary *Parent;
/// Index of object in the universal binary.
uint32_t Index;
/// Descriptor of the object.
MachO::fat_arch Header;
MachO::fat_arch_64 Header64;
public:
ObjectForArch(const MachOUniversalBinary *Parent, uint32_t Index);
void clear() {
Parent = nullptr;
Index = 0;
}
bool operator==(const ObjectForArch &Other) const {
return (Parent == Other.Parent) && (Index == Other.Index);
}
ObjectForArch getNext() const { return ObjectForArch(Parent, Index + 1); }
uint32_t getCPUType() const {
if (Parent->getMagic() == MachO::FAT_MAGIC)
return Header.cputype;
else // Parent->getMagic() == MachO::FAT_MAGIC_64
return Header64.cputype;
}
uint32_t getCPUSubType() const {
if (Parent->getMagic() == MachO::FAT_MAGIC)
return Header.cpusubtype;
else // Parent->getMagic() == MachO::FAT_MAGIC_64
return Header64.cpusubtype;
}
uint64_t getOffset() const {
if (Parent->getMagic() == MachO::FAT_MAGIC)
return Header.offset;
else // Parent->getMagic() == MachO::FAT_MAGIC_64
return Header64.offset;
}
uint64_t getSize() const {
if (Parent->getMagic() == MachO::FAT_MAGIC)
return Header.size;
else // Parent->getMagic() == MachO::FAT_MAGIC_64
return Header64.size;
}
uint32_t getAlign() const {
if (Parent->getMagic() == MachO::FAT_MAGIC)
return Header.align;
else // Parent->getMagic() == MachO::FAT_MAGIC_64
return Header64.align;
}
uint32_t getReserved() const {
if (Parent->getMagic() == MachO::FAT_MAGIC)
return 0;
else // Parent->getMagic() == MachO::FAT_MAGIC_64
return Header64.reserved;
}
Triple getTriple() const {
return MachOObjectFile::getArchTriple(getCPUType(), getCPUSubType());
}
std::string getArchFlagName() const {
const char *McpuDefault, *ArchFlag;
MachOObjectFile::getArchTriple(getCPUType(), getCPUSubType(),
&McpuDefault, &ArchFlag);
return ArchFlag ? ArchFlag : std::string();
}
Expected<std::unique_ptr<MachOObjectFile>> getAsObjectFile() const;
Expected<std::unique_ptr<IRObjectFile>>
getAsIRObject(LLVMContext &Ctx) const;
Expected<std::unique_ptr<Archive>> getAsArchive() const;
};
class object_iterator {
ObjectForArch Obj;
public:
object_iterator(const ObjectForArch &Obj) : Obj(Obj) {}
const ObjectForArch *operator->() const { return &Obj; }
const ObjectForArch &operator*() const { return Obj; }
bool operator==(const object_iterator &Other) const {
return Obj == Other.Obj;
}
bool operator!=(const object_iterator &Other) const {
return !(*this == Other);
}
object_iterator& operator++() { // Preincrement
Obj = Obj.getNext();
return *this;
}
};
MachOUniversalBinary(MemoryBufferRef Souce, Error &Err);
static Expected<std::unique_ptr<MachOUniversalBinary>>
create(MemoryBufferRef Source);
object_iterator begin_objects() const {
return ObjectForArch(this, 0);
}
object_iterator end_objects() const {
return ObjectForArch(nullptr, 0);
}
iterator_range<object_iterator> objects() const {
return make_range(begin_objects(), end_objects());
}
uint32_t getMagic() const { return Magic; }
uint32_t getNumberOfObjects() const { return NumberOfObjects; }
// Cast methods.
static bool classof(Binary const *V) {
return V->isMachOUniversalBinary();
}
Expected<ObjectForArch>
getObjectForArch(StringRef ArchName) const;
Expected<std::unique_ptr<MachOObjectFile>>
getMachOObjectForArch(StringRef ArchName) const;
Expected<std::unique_ptr<IRObjectFile>>
getIRObjectForArch(StringRef ArchName, LLVMContext &Ctx) const;
Expected<std::unique_ptr<Archive>>
getArchiveForArch(StringRef ArchName) const;
};
}
}
#endif
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
|
