forked from OSchip/llvm-project
104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
//===- Binary.cpp - A generic binary file -----------------------*- C++ -*-===//
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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 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/Support/MemoryBuffer.h"
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#include "llvm/Support/Path.h"
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// Include headers for createBinary.
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#include "llvm/Object/Archive.h"
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#include "llvm/Object/COFF.h"
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#include "llvm/Object/ObjectFile.h"
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using namespace llvm;
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using namespace object;
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Binary::~Binary() {
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delete Data;
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}
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Binary::Binary(unsigned int Type, MemoryBuffer *Source)
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: TypeID(Type)
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, Data(Source) {}
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StringRef Binary::getData() const {
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return Data->getBuffer();
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}
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StringRef Binary::getFileName() const {
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return Data->getBufferIdentifier();
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}
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error_code object::createBinary(MemoryBuffer *Source,
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OwningPtr<Binary> &Result) {
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OwningPtr<MemoryBuffer> scopedSource(Source);
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if (!Source)
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return make_error_code(errc::invalid_argument);
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if (Source->getBufferSize() < 64)
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return object_error::invalid_file_type;
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sys::LLVMFileType type = sys::IdentifyFileType(Source->getBufferStart(),
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static_cast<unsigned>(Source->getBufferSize()));
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error_code ec;
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switch (type) {
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case sys::Archive_FileType: {
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OwningPtr<Binary> ret(new Archive(scopedSource.take(), ec));
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if (ec) return ec;
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Result.swap(ret);
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return object_error::success;
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}
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case sys::ELF_Relocatable_FileType:
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case sys::ELF_Executable_FileType:
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case sys::ELF_SharedObject_FileType:
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case sys::ELF_Core_FileType: {
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OwningPtr<Binary> ret(
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ObjectFile::createELFObjectFile(scopedSource.take()));
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if (!ret)
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return object_error::invalid_file_type;
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Result.swap(ret);
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return object_error::success;
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}
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case sys::Mach_O_Object_FileType:
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case sys::Mach_O_Executable_FileType:
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case sys::Mach_O_FixedVirtualMemorySharedLib_FileType:
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case sys::Mach_O_Core_FileType:
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case sys::Mach_O_PreloadExecutable_FileType:
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case sys::Mach_O_DynamicallyLinkedSharedLib_FileType:
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case sys::Mach_O_DynamicLinker_FileType:
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case sys::Mach_O_Bundle_FileType:
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case sys::Mach_O_DynamicallyLinkedSharedLibStub_FileType: {
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OwningPtr<Binary> ret(
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ObjectFile::createMachOObjectFile(scopedSource.take()));
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if (!ret)
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return object_error::invalid_file_type;
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Result.swap(ret);
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return object_error::success;
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}
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case sys::COFF_FileType: {
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OwningPtr<Binary> ret(new COFFObjectFile(scopedSource.take(), ec));
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if (ec) return ec;
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Result.swap(ret);
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return object_error::success;
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}
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default: // Unrecognized object file format.
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return object_error::invalid_file_type;
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}
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}
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error_code object::createBinary(StringRef Path, OwningPtr<Binary> &Result) {
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OwningPtr<MemoryBuffer> File;
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if (error_code ec = MemoryBuffer::getFileOrSTDIN(Path, File))
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return ec;
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return createBinary(File.take(), Result);
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}
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