2fe96439fb
This change adds boilerplate code to implement the object::ObjectFile interface for the DXContainer object file and an empty implementation of the objdump Dumper object. Adding an ObjectFile implementation for DXContainer is a bit odd because the DXContainer format doesn't have a symbol table, so there isn't a reasonable implementation for the SymbolicFile interfaces. That said, it does have sections, and it will be useful for objdump to be able to inspect some of the structured data stored in some of the special named sections. At this point in the implementation it can't do much other than dump the part names, offsets, and sizes. Dumping detailed structured section contents to be extended in subsequent PRs. Fixes #151433
123 lines
4.5 KiB
C++
123 lines
4.5 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/Minidump.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Object/OffloadBinary.h"
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#include "llvm/Object/TapiUniversal.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/MemoryBuffer.h"
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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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bool InitContent) {
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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::goff_object:
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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::macho_file_set:
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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::xcoff_object_32:
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case file_magic::xcoff_object_64:
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case file_magic::wasm_object:
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case file_magic::dxcontainer_object:
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return ObjectFile::createSymbolicFile(Buffer, Type, Context, InitContent);
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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::clang_ast:
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case file_magic::cuda_fatbinary:
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case file_magic::coff_cl_gl_object:
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case file_magic::offload_bundle:
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case file_magic::offload_bundle_compressed:
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case file_magic::spirv_object:
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// Unrecognized object file format.
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return errorCodeToError(object_error::invalid_file_type);
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case file_magic::offload_binary:
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return OffloadBinary::create(Buffer);
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case file_magic::minidump:
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return MinidumpFile::create(Buffer);
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case file_magic::tapi_file:
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return TapiUniversal::create(Buffer);
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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>>
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object::createBinary(StringRef Path, LLVMContext *Context, bool InitContent) {
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ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
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MemoryBuffer::getFileOrSTDIN(Path, /*IsText=*/false,
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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(), Context, InitContent);
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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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