forked from OSchip/llvm-project
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
//===- SymbolicFile.cpp - Interface that only provides symbols ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a file format independent SymbolicFile class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/SymbolicFile.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/COFFImportFile.h"
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#include "llvm/Object/Error.h"
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#include "llvm/Object/IRObjectFile.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Support/Compiler.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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using namespace llvm;
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using namespace object;
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SymbolicFile::SymbolicFile(unsigned int Type, MemoryBufferRef Source)
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: Binary(Type, Source) {}
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SymbolicFile::~SymbolicFile() = default;
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Expected<std::unique_ptr<SymbolicFile>>
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SymbolicFile::createSymbolicFile(MemoryBufferRef Object, file_magic Type,
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LLVMContext *Context) {
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StringRef Data = Object.getBuffer();
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if (Type == file_magic::unknown)
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Type = identify_magic(Data);
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switch (Type) {
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case file_magic::bitcode:
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if (Context)
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return IRObjectFile::create(Object, *Context);
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LLVM_FALLTHROUGH;
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case file_magic::unknown:
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case file_magic::archive:
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case file_magic::coff_cl_gl_object:
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case file_magic::macho_universal_binary:
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case file_magic::windows_resource:
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case file_magic::pdb:
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return errorCodeToError(object_error::invalid_file_type);
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case file_magic::elf:
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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_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::pecoff_executable:
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case file_magic::wasm_object:
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return ObjectFile::createObjectFile(Object, Type);
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case file_magic::coff_import_library:
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return std::unique_ptr<SymbolicFile>(new COFFImportFile(Object));
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case file_magic::elf_relocatable:
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case file_magic::macho_object:
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case file_magic::coff_object: {
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Expected<std::unique_ptr<ObjectFile>> Obj =
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ObjectFile::createObjectFile(Object, Type);
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if (!Obj || !Context)
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return std::move(Obj);
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Expected<MemoryBufferRef> BCData =
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IRObjectFile::findBitcodeInObject(*Obj->get());
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if (!BCData) {
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consumeError(BCData.takeError());
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return std::move(Obj);
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}
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return IRObjectFile::create(
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MemoryBufferRef(BCData->getBuffer(), Object.getBufferIdentifier()),
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*Context);
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}
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}
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llvm_unreachable("Unexpected Binary File Type");
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}
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