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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
//===- Binary.cpp - A generic binary file ---------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the Binary class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/Binary.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/BinaryFormat/Magic.h"
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#include "llvm/Object/Archive.h"
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#include "llvm/Object/Error.h"
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#include "llvm/Object/MachOUniversal.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Object/WindowsResource.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ErrorOr.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include <algorithm>
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#include <memory>
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#include <system_error>
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using namespace llvm;
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using namespace object;
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Binary::~Binary() = default;
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Binary::Binary(unsigned int Type, MemoryBufferRef Source)
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: TypeID(Type), Data(Source) {}
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StringRef Binary::getData() const { return Data.getBuffer(); }
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StringRef Binary::getFileName() const { return Data.getBufferIdentifier(); }
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MemoryBufferRef Binary::getMemoryBufferRef() const { return Data; }
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Expected<std::unique_ptr<Binary>> object::createBinary(MemoryBufferRef Buffer,
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LLVMContext *Context) {
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file_magic Type = identify_magic(Buffer.getBuffer());
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switch (Type) {
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case file_magic::archive:
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return Archive::create(Buffer);
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case file_magic::elf:
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case file_magic::elf_relocatable:
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case file_magic::elf_executable:
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case file_magic::elf_shared_object:
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case file_magic::elf_core:
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case file_magic::macho_object:
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case file_magic::macho_executable:
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case file_magic::macho_fixed_virtual_memory_shared_lib:
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case file_magic::macho_core:
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case file_magic::macho_preload_executable:
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case file_magic::macho_dynamically_linked_shared_lib:
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case file_magic::macho_dynamic_linker:
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case file_magic::macho_bundle:
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case file_magic::macho_dynamically_linked_shared_lib_stub:
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case file_magic::macho_dsym_companion:
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case file_magic::macho_kext_bundle:
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case file_magic::coff_object:
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case file_magic::coff_import_library:
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case file_magic::pecoff_executable:
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case file_magic::bitcode:
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case file_magic::wasm_object:
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return ObjectFile::createSymbolicFile(Buffer, Type, Context);
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case file_magic::macho_universal_binary:
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return MachOUniversalBinary::create(Buffer);
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case file_magic::windows_resource:
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return WindowsResource::createWindowsResource(Buffer);
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case file_magic::pdb:
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// PDB does not support the Binary interface.
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return errorCodeToError(object_error::invalid_file_type);
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case file_magic::unknown:
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case file_magic::coff_cl_gl_object:
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// Unrecognized object file format.
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return errorCodeToError(object_error::invalid_file_type);
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}
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llvm_unreachable("Unexpected Binary File Type");
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}
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Expected<OwningBinary<Binary>> object::createBinary(StringRef Path) {
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ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
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MemoryBuffer::getFileOrSTDIN(Path, /*FileSize=*/-1,
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/*RequiresNullTerminator=*/false);
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if (std::error_code EC = FileOrErr.getError())
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return errorCodeToError(EC);
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std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get();
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Expected<std::unique_ptr<Binary>> BinOrErr =
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createBinary(Buffer->getMemBufferRef());
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if (!BinOrErr)
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return BinOrErr.takeError();
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std::unique_ptr<Binary> &Bin = BinOrErr.get();
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return OwningBinary<Binary>(std::move(Bin), std::move(Buffer));
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}
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