| //===- Binary.cpp - A generic binary file ---------------------------------===// |
| // |
| // 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 defines the Binary class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Object/Binary.h" |
| #include "llvm/ADT/StringRef.h" |
| #include "llvm/BinaryFormat/Magic.h" |
| #include "llvm/Object/Archive.h" |
| #include "llvm/Object/Error.h" |
| #include "llvm/Object/MachOUniversal.h" |
| #include "llvm/Object/Minidump.h" |
| #include "llvm/Object/ObjectFile.h" |
| #include "llvm/Object/TapiUniversal.h" |
| #include "llvm/Object/WindowsResource.h" |
| #include "llvm/Support/Error.h" |
| #include "llvm/Support/ErrorHandling.h" |
| #include "llvm/Support/ErrorOr.h" |
| #include "llvm/Support/FileSystem.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include <algorithm> |
| #include <memory> |
| #include <system_error> |
| |
| using namespace llvm; |
| using namespace object; |
| |
| Binary::~Binary() = default; |
| |
| 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; } |
| |
| Expected<std::unique_ptr<Binary>> object::createBinary(MemoryBufferRef Buffer, |
| LLVMContext *Context, |
| bool InitContent) { |
| file_magic Type = identify_magic(Buffer.getBuffer()); |
| |
| switch (Type) { |
| case file_magic::archive: |
| return Archive::create(Buffer); |
| case file_magic::elf: |
| case file_magic::elf_relocatable: |
| case file_magic::elf_executable: |
| case file_magic::elf_shared_object: |
| case file_magic::elf_core: |
| case file_magic::goff_object: |
| case file_magic::macho_object: |
| case file_magic::macho_executable: |
| case file_magic::macho_fixed_virtual_memory_shared_lib: |
| case file_magic::macho_core: |
| case file_magic::macho_preload_executable: |
| case file_magic::macho_dynamically_linked_shared_lib: |
| case file_magic::macho_dynamic_linker: |
| case file_magic::macho_bundle: |
| case file_magic::macho_dynamically_linked_shared_lib_stub: |
| case file_magic::macho_dsym_companion: |
| case file_magic::macho_kext_bundle: |
| case file_magic::coff_object: |
| case file_magic::coff_import_library: |
| case file_magic::pecoff_executable: |
| case file_magic::bitcode: |
| case file_magic::xcoff_object_32: |
| case file_magic::xcoff_object_64: |
| case file_magic::wasm_object: |
| return ObjectFile::createSymbolicFile(Buffer, Type, Context, InitContent); |
| case file_magic::macho_universal_binary: |
| return MachOUniversalBinary::create(Buffer); |
| case file_magic::windows_resource: |
| return WindowsResource::createWindowsResource(Buffer); |
| case file_magic::pdb: |
| // PDB does not support the Binary interface. |
| return errorCodeToError(object_error::invalid_file_type); |
| case file_magic::unknown: |
| case file_magic::coff_cl_gl_object: |
| // Unrecognized object file format. |
| return errorCodeToError(object_error::invalid_file_type); |
| case file_magic::minidump: |
| return MinidumpFile::create(Buffer); |
| case file_magic::tapi_file: |
| return TapiUniversal::create(Buffer); |
| } |
| llvm_unreachable("Unexpected Binary File Type"); |
| } |
| |
| Expected<OwningBinary<Binary>> |
| object::createBinary(StringRef Path, LLVMContext *Context, bool InitContent) { |
| ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = |
| MemoryBuffer::getFileOrSTDIN(Path, /*IsText=*/false, |
| /*RequiresNullTerminator=*/false); |
| if (std::error_code EC = FileOrErr.getError()) |
| return errorCodeToError(EC); |
| std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get(); |
| |
| Expected<std::unique_ptr<Binary>> BinOrErr = |
| createBinary(Buffer->getMemBufferRef(), Context, InitContent); |
| if (!BinOrErr) |
| return BinOrErr.takeError(); |
| std::unique_ptr<Binary> &Bin = BinOrErr.get(); |
| |
| return OwningBinary<Binary>(std::move(Bin), std::move(Buffer)); |
| } |