mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-27 21:50:40 +00:00
38a4f3bbec
An unpleasant surprise while migrating unique_ptrs (see changes in lib/Object): ErrorOr<int*> was implicitly convertible to ErrorOr<std::unique_ptr<int>>. Keep the explicit conversions otherwise it's a pain to convert ErrorOr<int*> to ErrorOr<std::unique_ptr<int>>. I'm not sure if there should be more SFINAE on those explicit ctors (I could check if !is_convertible && is_constructible, but since the ctor has to be called explicitly I don't think there's any need to disable them when !is_constructible - they'll just fail anyway. It's the converting ctors that can create interesting ambiguities without proper SFINAE). I had to SFINAE the explicit ones because otherwise they'd be ambiguous with the implicit ones in an explicit context, so far as I could tell. The converting assignment operators seemed unnecessary (and similarly buggy/dangerous) - just rely on the converting ctors to convert to the right type for assignment instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217048 91177308-0d34-0410-b5e6-96231b3b80d8
91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
//===- Binary.cpp - A generic binary file -----------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the Binary class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Object/Binary.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Support/FileSystem.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/Path.h"
|
|
|
|
// Include headers for createBinary.
|
|
#include "llvm/Object/Archive.h"
|
|
#include "llvm/Object/MachOUniversal.h"
|
|
#include "llvm/Object/ObjectFile.h"
|
|
|
|
using namespace llvm;
|
|
using namespace object;
|
|
|
|
Binary::~Binary() {}
|
|
|
|
Binary::Binary(unsigned int Type, MemoryBufferRef Source)
|
|
: TypeID(Type), Data(Source) {}
|
|
|
|
StringRef Binary::getData() const { return Data.getBuffer(); }
|
|
|
|
StringRef Binary::getFileName() const { return Data.getBufferIdentifier(); }
|
|
|
|
MemoryBufferRef Binary::getMemoryBufferRef() const { return Data; }
|
|
|
|
ErrorOr<std::unique_ptr<Binary>> object::createBinary(MemoryBufferRef Buffer,
|
|
LLVMContext *Context) {
|
|
sys::fs::file_magic Type = sys::fs::identify_magic(Buffer.getBuffer());
|
|
|
|
switch (Type) {
|
|
case sys::fs::file_magic::archive:
|
|
return Archive::create(Buffer);
|
|
case sys::fs::file_magic::elf_relocatable:
|
|
case sys::fs::file_magic::elf_executable:
|
|
case sys::fs::file_magic::elf_shared_object:
|
|
case sys::fs::file_magic::elf_core:
|
|
case sys::fs::file_magic::macho_object:
|
|
case sys::fs::file_magic::macho_executable:
|
|
case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib:
|
|
case sys::fs::file_magic::macho_core:
|
|
case sys::fs::file_magic::macho_preload_executable:
|
|
case sys::fs::file_magic::macho_dynamically_linked_shared_lib:
|
|
case sys::fs::file_magic::macho_dynamic_linker:
|
|
case sys::fs::file_magic::macho_bundle:
|
|
case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub:
|
|
case sys::fs::file_magic::macho_dsym_companion:
|
|
case sys::fs::file_magic::coff_object:
|
|
case sys::fs::file_magic::coff_import_library:
|
|
case sys::fs::file_magic::pecoff_executable:
|
|
case sys::fs::file_magic::bitcode:
|
|
return ObjectFile::createSymbolicFile(Buffer, Type, Context);
|
|
case sys::fs::file_magic::macho_universal_binary:
|
|
return ErrorOr<std::unique_ptr<Binary>>(
|
|
MachOUniversalBinary::create(Buffer));
|
|
case sys::fs::file_magic::unknown:
|
|
case sys::fs::file_magic::windows_resource:
|
|
// Unrecognized object file format.
|
|
return object_error::invalid_file_type;
|
|
}
|
|
llvm_unreachable("Unexpected Binary File Type");
|
|
}
|
|
|
|
ErrorOr<OwningBinary<Binary>> object::createBinary(StringRef Path) {
|
|
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
|
|
MemoryBuffer::getFileOrSTDIN(Path);
|
|
if (std::error_code EC = FileOrErr.getError())
|
|
return EC;
|
|
std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get();
|
|
|
|
ErrorOr<std::unique_ptr<Binary>> BinOrErr =
|
|
createBinary(Buffer->getMemBufferRef());
|
|
if (std::error_code EC = BinOrErr.getError())
|
|
return EC;
|
|
std::unique_ptr<Binary> &Bin = BinOrErr.get();
|
|
|
|
return OwningBinary<Binary>(std::move(Bin), std::move(Buffer));
|
|
}
|