mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-25 15:19:14 +00:00
11fcb49922
The reason we need to search by name rather than by Triple::ArchType is to handle subarchitecture correclty. There is no different ArchType for the x86_64h architecture (it identifies itself as x86_64), or for the various ARM subarches. The only way to get to the subarch slice in an universal binary is to search by name. This issue led to hard to debug and transient symbolication failures in Asan tests (it mostly works, because the files are very similar). This also affects the Profiling infrastucture as it is the other user of that API. Reviewers: samsonov, bogner Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D10604 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240339 91177308-0d34-0410-b5e6-96231b3b80d8
119 lines
3.3 KiB
C++
119 lines
3.3 KiB
C++
//===- MachOUniversal.h - Mach-O universal binaries -------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file declares Mach-O fat/universal binaries.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_OBJECT_MACHOUNIVERSAL_H
|
|
#define LLVM_OBJECT_MACHOUNIVERSAL_H
|
|
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/ADT/Triple.h"
|
|
#include "llvm/ADT/iterator_range.h"
|
|
#include "llvm/Object/Archive.h"
|
|
#include "llvm/Object/Binary.h"
|
|
#include "llvm/Object/MachO.h"
|
|
#include "llvm/Support/ErrorOr.h"
|
|
#include "llvm/Support/MachO.h"
|
|
|
|
namespace llvm {
|
|
namespace object {
|
|
|
|
class MachOUniversalBinary : public Binary {
|
|
virtual void anchor();
|
|
|
|
uint32_t NumberOfObjects;
|
|
public:
|
|
class ObjectForArch {
|
|
const MachOUniversalBinary *Parent;
|
|
/// \brief Index of object in the universal binary.
|
|
uint32_t Index;
|
|
/// \brief Descriptor of the object.
|
|
MachO::fat_arch Header;
|
|
|
|
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 { return Header.cputype; }
|
|
uint32_t getCPUSubType() const { return Header.cpusubtype; }
|
|
uint32_t getOffset() const { return Header.offset; }
|
|
uint32_t getSize() const { return Header.size; }
|
|
uint32_t getAlign() const { return Header.align; }
|
|
std::string getArchTypeName() const {
|
|
Triple T = MachOObjectFile::getArch(Header.cputype, Header.cpusubtype);
|
|
return T.getArchName();
|
|
}
|
|
|
|
ErrorOr<std::unique_ptr<MachOObjectFile>> getAsObjectFile() const;
|
|
|
|
ErrorOr<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, std::error_code &EC);
|
|
static ErrorOr<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 getNumberOfObjects() const { return NumberOfObjects; }
|
|
|
|
// Cast methods.
|
|
static inline bool classof(Binary const *V) {
|
|
return V->isMachOUniversalBinary();
|
|
}
|
|
|
|
ErrorOr<std::unique_ptr<MachOObjectFile>>
|
|
getObjectForArch(StringRef ArchName) const;
|
|
};
|
|
|
|
} // namespace object
|
|
} // namespace llvm
|
|
|
|
#endif
|