1 //===- MachOUniversal.h - Mach-O universal binaries -------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares Mach-O fat/universal binaries.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_OBJECT_MACHOUNIVERSAL_H
15 #define LLVM_OBJECT_MACHOUNIVERSAL_H
17 #include "llvm/ADT/Triple.h"
18 #include "llvm/ADT/iterator_range.h"
19 #include "llvm/BinaryFormat/MachO.h"
20 #include "llvm/Object/Archive.h"
21 #include "llvm/Object/Binary.h"
22 #include "llvm/Object/MachO.h"
29 class MachOUniversalBinary : public Binary {
30 virtual void anchor();
33 uint32_t NumberOfObjects;
36 const MachOUniversalBinary *Parent;
37 /// \brief Index of object in the universal binary.
39 /// \brief Descriptor of the object.
40 MachO::fat_arch Header;
41 MachO::fat_arch_64 Header64;
44 ObjectForArch(const MachOUniversalBinary *Parent, uint32_t Index);
51 bool operator==(const ObjectForArch &Other) const {
52 return (Parent == Other.Parent) && (Index == Other.Index);
55 ObjectForArch getNext() const { return ObjectForArch(Parent, Index + 1); }
56 uint32_t getCPUType() const {
57 if (Parent->getMagic() == MachO::FAT_MAGIC)
58 return Header.cputype;
59 else // Parent->getMagic() == MachO::FAT_MAGIC_64
60 return Header64.cputype;
62 uint32_t getCPUSubType() const {
63 if (Parent->getMagic() == MachO::FAT_MAGIC)
64 return Header.cpusubtype;
65 else // Parent->getMagic() == MachO::FAT_MAGIC_64
66 return Header64.cpusubtype;
68 uint32_t getOffset() const {
69 if (Parent->getMagic() == MachO::FAT_MAGIC)
71 else // Parent->getMagic() == MachO::FAT_MAGIC_64
72 return Header64.offset;
74 uint32_t getSize() const {
75 if (Parent->getMagic() == MachO::FAT_MAGIC)
77 else // Parent->getMagic() == MachO::FAT_MAGIC_64
80 uint32_t getAlign() const {
81 if (Parent->getMagic() == MachO::FAT_MAGIC)
83 else // Parent->getMagic() == MachO::FAT_MAGIC_64
84 return Header64.align;
86 uint32_t getReserved() const {
87 if (Parent->getMagic() == MachO::FAT_MAGIC)
89 else // Parent->getMagic() == MachO::FAT_MAGIC_64
90 return Header64.reserved;
92 std::string getArchFlagName() const {
93 const char *McpuDefault, *ArchFlag;
94 if (Parent->getMagic() == MachO::FAT_MAGIC) {
96 MachOObjectFile::getArchTriple(Header.cputype, Header.cpusubtype,
97 &McpuDefault, &ArchFlag);
98 } else { // Parent->getMagic() == MachO::FAT_MAGIC_64
100 MachOObjectFile::getArchTriple(Header64.cputype,
102 &McpuDefault, &ArchFlag);
105 std::string ArchFlagName(ArchFlag);
108 std::string ArchFlagName("");
113 Expected<std::unique_ptr<MachOObjectFile>> getAsObjectFile() const;
115 Expected<std::unique_ptr<Archive>> getAsArchive() const;
118 class object_iterator {
121 object_iterator(const ObjectForArch &Obj) : Obj(Obj) {}
122 const ObjectForArch *operator->() const { return &Obj; }
123 const ObjectForArch &operator*() const { return Obj; }
125 bool operator==(const object_iterator &Other) const {
126 return Obj == Other.Obj;
128 bool operator!=(const object_iterator &Other) const {
129 return !(*this == Other);
132 object_iterator& operator++() { // Preincrement
138 MachOUniversalBinary(MemoryBufferRef Souce, Error &Err);
139 static Expected<std::unique_ptr<MachOUniversalBinary>>
140 create(MemoryBufferRef Source);
142 object_iterator begin_objects() const {
143 return ObjectForArch(this, 0);
145 object_iterator end_objects() const {
146 return ObjectForArch(nullptr, 0);
149 iterator_range<object_iterator> objects() const {
150 return make_range(begin_objects(), end_objects());
153 uint32_t getMagic() const { return Magic; }
154 uint32_t getNumberOfObjects() const { return NumberOfObjects; }
157 static bool classof(Binary const *V) {
158 return V->isMachOUniversalBinary();
161 Expected<std::unique_ptr<MachOObjectFile>>
162 getObjectForArch(StringRef ArchName) const;