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112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
//===- ObjectFile.cpp - File format independent object 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 a file format independent ObjectFile class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/ObjectFile.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/Binary.h"
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#include "llvm/Object/COFF.h"
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#include "llvm/Object/Error.h"
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#include "llvm/Object/MachO.h"
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#include "llvm/Object/Wasm.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 "llvm/Support/raw_ostream.h"
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#include <algorithm>
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#include <cstdint>
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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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void ObjectFile::anchor() {}
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ObjectFile::ObjectFile(unsigned int Type, MemoryBufferRef Source)
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: SymbolicFile(Type, Source) {}
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bool SectionRef::containsSymbol(SymbolRef S) const {
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llvm_unreachable("containsSymbol"); // XXX BINARYEN
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}
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uint64_t ObjectFile::getSymbolValue(DataRefImpl Ref) const {
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uint32_t Flags = getSymbolFlags(Ref);
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if (Flags & SymbolRef::SF_Undefined)
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return 0;
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if (Flags & SymbolRef::SF_Common)
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return getCommonSymbolSize(Ref);
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return getSymbolValueImpl(Ref);
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}
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Error ObjectFile::printSymbolName(raw_ostream &OS, DataRefImpl Symb) const {
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Expected<StringRef> Name = getSymbolName(Symb);
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if (!Name)
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return Name.takeError();
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OS << *Name;
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return Error::success();
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}
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uint32_t ObjectFile::getSymbolAlignment(DataRefImpl DRI) const { return 0; }
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bool ObjectFile::isSectionBitcode(DataRefImpl Sec) const {
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Expected<StringRef> NameOrErr = getSectionName(Sec);
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if (NameOrErr)
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return *NameOrErr == ".llvmbc";
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consumeError(NameOrErr.takeError());
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return false;
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}
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bool ObjectFile::isSectionStripped(DataRefImpl Sec) const { return false; }
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bool ObjectFile::isBerkeleyText(DataRefImpl Sec) const {
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return isSectionText(Sec);
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}
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bool ObjectFile::isBerkeleyData(DataRefImpl Sec) const {
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return isSectionData(Sec);
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}
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Expected<section_iterator>
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ObjectFile::getRelocatedSection(DataRefImpl Sec) const {
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return section_iterator(SectionRef(Sec, this));
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}
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Triple ObjectFile::makeTriple() const {
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llvm_unreachable("makeTriple"); // XXX BINARYEN
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}
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Expected<std::unique_ptr<ObjectFile>>
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ObjectFile::createObjectFile(MemoryBufferRef Object, file_magic Type) {
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llvm_unreachable("createObjectFile"); // XXX BINARYEN
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}
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#if 0 // XXX BINARYEN
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Expected<OwningBinary<ObjectFile>>
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ObjectFile::createObjectFile(StringRef ObjectPath) {
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ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
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MemoryBuffer::getFile(ObjectPath);
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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 = std::move(FileOrErr.get());
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Expected<std::unique_ptr<ObjectFile>> ObjOrErr =
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createObjectFile(Buffer->getMemBufferRef());
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if (Error Err = ObjOrErr.takeError())
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return std::move(Err);
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std::unique_ptr<ObjectFile> Obj = std::move(ObjOrErr.get());
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return OwningBinary<ObjectFile>(std::move(Obj), std::move(Buffer));
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}
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#endif
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