forked from OSchip/llvm-project
271 lines
7.5 KiB
C++
271 lines
7.5 KiB
C++
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//===--- XCOFFObjectFile.cpp - XCOFF object file implementation -----------===//
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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 XCOFFObjectFile class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/XCOFFObjectFile.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/Support/BinaryStreamReader.h"
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#include "llvm/Support/Endian.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/MathExtras.h"
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#include <cstddef>
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#include <cstring>
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namespace llvm {
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namespace object {
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// Sets Obj unless any bytes in [addr, addr + size) fall outsize of m.
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// Returns unexpected_eof on error.
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template <typename T>
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static std::error_code getObject(const T *&Obj, MemoryBufferRef M,
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const void *Ptr,
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const uint64_t Size = sizeof(T)) {
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uintptr_t Addr = uintptr_t(Ptr);
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if (std::error_code EC = Binary::checkOffset(M, Addr, Size))
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return EC;
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Obj = reinterpret_cast<const T *>(Addr);
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return std::error_code();
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}
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void XCOFFObjectFile::moveSymbolNext(DataRefImpl &Symb) const {
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llvm_unreachable("Not yet implemented!");
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return;
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}
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Expected<StringRef> XCOFFObjectFile::getSymbolName(DataRefImpl Symb) const {
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StringRef Result;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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Expected<uint64_t> XCOFFObjectFile::getSymbolAddress(DataRefImpl Symb) const {
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uint64_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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uint64_t XCOFFObjectFile::getSymbolValueImpl(DataRefImpl Symb) const {
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uint64_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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uint64_t XCOFFObjectFile::getCommonSymbolSizeImpl(DataRefImpl Symb) const {
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uint64_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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Expected<SymbolRef::Type>
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XCOFFObjectFile::getSymbolType(DataRefImpl Symb) const {
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llvm_unreachable("Not yet implemented!");
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return SymbolRef::ST_Other;
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}
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Expected<section_iterator>
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XCOFFObjectFile::getSymbolSection(DataRefImpl Symb) const {
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llvm_unreachable("Not yet implemented!");
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return section_iterator(SectionRef());
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}
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void XCOFFObjectFile::moveSectionNext(DataRefImpl &Sec) const {
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llvm_unreachable("Not yet implemented!");
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return;
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}
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std::error_code XCOFFObjectFile::getSectionName(DataRefImpl Sec,
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StringRef &Res) const {
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llvm_unreachable("Not yet implemented!");
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return std::error_code();
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}
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uint64_t XCOFFObjectFile::getSectionAddress(DataRefImpl Sec) const {
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uint64_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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uint64_t XCOFFObjectFile::getSectionIndex(DataRefImpl Sec) const {
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uint64_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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uint64_t XCOFFObjectFile::getSectionSize(DataRefImpl Sec) const {
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uint64_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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std::error_code XCOFFObjectFile::getSectionContents(DataRefImpl Sec,
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StringRef &Res) const {
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llvm_unreachable("Not yet implemented!");
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return std::error_code();
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}
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uint64_t XCOFFObjectFile::getSectionAlignment(DataRefImpl Sec) const {
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uint64_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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bool XCOFFObjectFile::isSectionCompressed(DataRefImpl Sec) const {
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bool Result = false;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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bool XCOFFObjectFile::isSectionText(DataRefImpl Sec) const {
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bool Result = false;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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bool XCOFFObjectFile::isSectionData(DataRefImpl Sec) const {
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bool Result = false;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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bool XCOFFObjectFile::isSectionBSS(DataRefImpl Sec) const {
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bool Result = false;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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bool XCOFFObjectFile::isSectionVirtual(DataRefImpl Sec) const {
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bool Result = false;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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relocation_iterator XCOFFObjectFile::section_rel_begin(DataRefImpl Sec) const {
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llvm_unreachable("Not yet implemented!");
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return relocation_iterator(RelocationRef());
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}
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relocation_iterator XCOFFObjectFile::section_rel_end(DataRefImpl Sec) const {
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llvm_unreachable("Not yet implemented!");
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return relocation_iterator(RelocationRef());
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}
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void XCOFFObjectFile::moveRelocationNext(DataRefImpl &Rel) const {
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llvm_unreachable("Not yet implemented!");
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return;
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}
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uint64_t XCOFFObjectFile::getRelocationOffset(DataRefImpl Rel) const {
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llvm_unreachable("Not yet implemented!");
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uint64_t Result = 0;
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return Result;
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}
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symbol_iterator XCOFFObjectFile::getRelocationSymbol(DataRefImpl Rel) const {
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llvm_unreachable("Not yet implemented!");
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return symbol_iterator(SymbolRef());
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}
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uint64_t XCOFFObjectFile::getRelocationType(DataRefImpl Rel) const {
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llvm_unreachable("Not yet implemented!");
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uint64_t Result = 0;
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return Result;
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}
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void XCOFFObjectFile::getRelocationTypeName(
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DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
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llvm_unreachable("Not yet implemented!");
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return;
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}
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uint32_t XCOFFObjectFile::getSymbolFlags(DataRefImpl Symb) const {
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uint32_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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basic_symbol_iterator XCOFFObjectFile::symbol_begin() const {
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llvm_unreachable("Not yet implemented!");
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return basic_symbol_iterator(SymbolRef());
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}
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basic_symbol_iterator XCOFFObjectFile::symbol_end() const {
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llvm_unreachable("Not yet implemented!");
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return basic_symbol_iterator(SymbolRef());
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}
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section_iterator XCOFFObjectFile::section_begin() const {
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llvm_unreachable("Not yet implemented!");
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return section_iterator(SectionRef());
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}
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section_iterator XCOFFObjectFile::section_end() const {
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llvm_unreachable("Not yet implemented!");
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return section_iterator(SectionRef());
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}
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uint8_t XCOFFObjectFile::getBytesInAddress() const {
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uint8_t Result = 0;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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StringRef XCOFFObjectFile::getFileFormatName() const {
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llvm_unreachable("Not yet implemented!");
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return "";
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}
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Triple::ArchType XCOFFObjectFile::getArch() const {
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llvm_unreachable("Not yet implemented!");
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return Triple::UnknownArch;
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}
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SubtargetFeatures XCOFFObjectFile::getFeatures() const {
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llvm_unreachable("Not yet implemented!");
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return SubtargetFeatures();
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}
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bool XCOFFObjectFile::isRelocatableObject() const {
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bool Result = false;
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llvm_unreachable("Not yet implemented!");
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return Result;
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}
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XCOFFObjectFile::XCOFFObjectFile(MemoryBufferRef Object, std::error_code &EC)
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: ObjectFile(Binary::ID_XCOFF32, Object) {
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// Current location within the file.
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uint64_t CurPtr = 0;
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if ((EC = getObject(FileHdrPtr, Data, base() + CurPtr)))
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return;
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}
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Expected<std::unique_ptr<ObjectFile>>
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ObjectFile::createXCOFFObjectFile(MemoryBufferRef Object) {
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StringRef Data = Object.getBuffer();
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file_magic Type = identify_magic(Data);
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std::error_code EC;
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std::unique_ptr<ObjectFile> Ret;
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if (Type == file_magic::xcoff_object_32) {
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Ret.reset(new XCOFFObjectFile(Object, EC));
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} else {
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llvm_unreachable("Encountered an unexpected binary file type!");
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}
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if (EC)
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return errorCodeToError(EC);
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return std::move(Ret);
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}
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} // namespace object
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} // namespace llvm
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