Archive.cpp | Explore in Territory

//===- Archive.cpp - ar File Format implementation ------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the ArchiveObjectFile class.
//
//===----------------------------------------------------------------------===//

#include "llvm/Object/Archive.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Object/Binary.h"
#include "llvm/Object/Error.h"
#include "llvm/Support/Chrono.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/EndianStream.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Host.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <memory>
#include <string>
#include <system_error>

usingnamespacellvm;
usingnamespaceobject;
usingnamespacellvm::support::endian;

void Archive::anchor() { … }

static Error malformedError(Twine Msg) { … }

static Error
createMemberHeaderParseError(const AbstractArchiveMemberHeader *ArMemHeader,
                             const char *RawHeaderPtr, uint64_t Size) { … }

template <class T, std::size_t N>
StringRef getFieldRawString(const T (&Field)[N]) { … }

template <class T>
StringRef CommonArchiveMemberHeader<T>::getRawAccessMode() const { … }

template <class T>
StringRef CommonArchiveMemberHeader<T>::getRawLastModified() const { … }

template <class T> StringRef CommonArchiveMemberHeader<T>::getRawUID() const { … }

template <class T> StringRef CommonArchiveMemberHeader<T>::getRawGID() const { … }

template <class T> uint64_t CommonArchiveMemberHeader<T>::getOffset() const { … }

template class object::CommonArchiveMemberHeader<UnixArMemHdrType>;
template class object::CommonArchiveMemberHeader<BigArMemHdrType>;

ArchiveMemberHeader::ArchiveMemberHeader(const Archive *Parent,
                                         const char *RawHeaderPtr,
                                         uint64_t Size, Error *Err)
    : … { … }

BigArchiveMemberHeader::BigArchiveMemberHeader(const Archive *Parent,
                                               const char *RawHeaderPtr,
                                               uint64_t Size, Error *Err)
    : … { … }

// This gets the raw name from the ArMemHdr->Name field and checks that it is
// valid for the kind of archive.  If it is not valid it returns an Error.
Expected<StringRef> ArchiveMemberHeader::getRawName() const { … }

Expected<uint64_t>
getArchiveMemberDecField(Twine FieldName, const StringRef RawField,
                         const Archive *Parent,
                         const AbstractArchiveMemberHeader *MemHeader) { … }

Expected<uint64_t>
getArchiveMemberOctField(Twine FieldName, const StringRef RawField,
                         const Archive *Parent,
                         const AbstractArchiveMemberHeader *MemHeader) { … }

Expected<StringRef> BigArchiveMemberHeader::getRawName() const { … }

// member including the header, so the size of any name following the header
// is checked to make sure it does not overflow.
Expected<StringRef> ArchiveMemberHeader::getName(uint64_t Size) const { … }

Expected<StringRef> BigArchiveMemberHeader::getName(uint64_t Size) const { … }

Expected<uint64_t> ArchiveMemberHeader::getSize() const { … }

Expected<uint64_t> BigArchiveMemberHeader::getSize() const { … }

Expected<uint64_t> BigArchiveMemberHeader::getRawNameSize() const { … }

Expected<uint64_t> BigArchiveMemberHeader::getNextOffset() const { … }

Expected<sys::fs::perms> AbstractArchiveMemberHeader::getAccessMode() const { … }

Expected<sys::TimePoint<std::chrono::seconds>>
AbstractArchiveMemberHeader::getLastModified() const { … }

Expected<unsigned> AbstractArchiveMemberHeader::getUID() const { … }

Expected<unsigned> AbstractArchiveMemberHeader::getGID() const { … }

Expected<bool> ArchiveMemberHeader::isThin() const { … }

Expected<const char *> ArchiveMemberHeader::getNextChildLoc() const { … }

Expected<const char *> BigArchiveMemberHeader::getNextChildLoc() const { … }

Archive::Child::Child(const Archive *Parent, StringRef Data,
                      uint16_t StartOfFile)
    : … { … }

Archive::Child::Child(const Archive *Parent, const char *Start, Error *Err)
    : … { … }

Expected<uint64_t> Archive::Child::getSize() const { … }

Expected<uint64_t> Archive::Child::getRawSize() const { … }

Expected<bool> Archive::Child::isThinMember() const { … }

Expected<std::string> Archive::Child::getFullName() const { … }

Expected<StringRef> Archive::Child::getBuffer() const { … }

Expected<Archive::Child> Archive::Child::getNext() const { … }

uint64_t Archive::Child::getChildOffset() const { … }

Expected<StringRef> Archive::Child::getName() const { … }

Expected<MemoryBufferRef> Archive::Child::getMemoryBufferRef() const { … }

Expected<std::unique_ptr<Binary>>
Archive::Child::getAsBinary(LLVMContext *Context) const { … }

Expected<std::unique_ptr<Archive>> Archive::create(MemoryBufferRef Source) { … }

std::unique_ptr<AbstractArchiveMemberHeader>
Archive::createArchiveMemberHeader(const char *RawHeaderPtr, uint64_t Size,
                                   Error *Err) const { … }

uint64_t Archive::getArchiveMagicLen() const { … }

void Archive::setFirstRegular(const Child &C) { … }

Archive::Archive(MemoryBufferRef Source, Error &Err)
    : … { … }

object::Archive::Kind Archive::getDefaultKindForTriple(Triple &T) { … }

object::Archive::Kind Archive::getDefaultKind() { … }

Archive::child_iterator Archive::child_begin(Error &Err,
                                             bool SkipInternal) const { … }

Archive::child_iterator Archive::child_end() const { … }

bool Archive::Symbol::isECSymbol() const { … }

StringRef Archive::Symbol::getName() const { … }

Expected<Archive::Child> Archive::Symbol::getMember() const { … }

Archive::Symbol Archive::Symbol::getNext() const { … }

Archive::symbol_iterator Archive::symbol_begin() const { … }

Archive::symbol_iterator Archive::symbol_end() const { … }

Expected<iterator_range<Archive::symbol_iterator>> Archive::ec_symbols() const { … }

uint32_t Archive::getNumberOfSymbols() const { … }

uint32_t Archive::getNumberOfECSymbols() const { … }

Expected<std::optional<Archive::Child>> Archive::findSym(StringRef name) const { … }

// Returns true if archive file contains no member file.
bool Archive::isEmpty() const { … }

bool Archive::hasSymbolTable() const { … }

static Error getGlobalSymtabLocAndSize(const MemoryBufferRef &Data,
                                       uint64_t GlobalSymtabOffset,
                                       const char *&GlobalSymtabLoc,
                                       uint64_t &Size, const char *BitMessage) { … }

struct GlobalSymtabInfo { … };

static void
appendGlobalSymbolTableInfo(SmallVector<GlobalSymtabInfo> &SymtabInfos,
                            const char *GlobalSymtabLoc, uint64_t Size) { … }

BigArchive::BigArchive(MemoryBufferRef Source, Error &Err)
    : … { … }
llvm/llvm/lib/Object/Archive.cpp
