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llvm-project/llvm/lib/CodeGen/AsmPrinter/AccelTable.cpp

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//===- llvm/CodeGen/AsmPrinter/AccelTable.cpp - Accelerator Tables --------===//
//
// 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 contains support for writing accelerator tables.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/AccelTable.h"
#include "DwarfCompileUnit.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/DIE.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <limits>
#include <vector>
using namespace llvm;
void AccelTableBase::computeBucketCount() {
// First get the number of unique hashes.
std::vector<uint32_t> Uniques;
Uniques.reserve(Entries.size());
for (const auto &E : Entries)
Uniques.push_back(E.second.HashValue);
array_pod_sort(Uniques.begin(), Uniques.end());
std::vector<uint32_t>::iterator P =
std::unique(Uniques.begin(), Uniques.end());
UniqueHashCount = std::distance(Uniques.begin(), P);
if (UniqueHashCount > 1024)
BucketCount = UniqueHashCount / 4;
else if (UniqueHashCount > 16)
BucketCount = UniqueHashCount / 2;
else
BucketCount = std::max<uint32_t>(UniqueHashCount, 1);
}
void AccelTableBase::finalize(AsmPrinter *Asm, StringRef Prefix) {
// Create the individual hash data outputs.
for (auto &E : Entries) {
// Unique the entries.
llvm::stable_sort(E.second.Values,
[](const AccelTableData *A, const AccelTableData *B) {
return *A < *B;
});
E.second.Values.erase(
std::unique(E.second.Values.begin(), E.second.Values.end()),
E.second.Values.end());
}
// Figure out how many buckets we need, then compute the bucket contents and
// the final ordering. The hashes and offsets can be emitted by walking these
// data structures. We add temporary symbols to the data so they can be
// referenced when emitting the offsets.
computeBucketCount();
// Compute bucket contents and final ordering.
Buckets.resize(BucketCount);
for (auto &E : Entries) {
uint32_t Bucket = E.second.HashValue % BucketCount;
Buckets[Bucket].push_back(&E.second);
E.second.Sym = Asm->createTempSymbol(Prefix);
}
// Sort the contents of the buckets by hash value so that hash collisions end
// up together. Stable sort makes testing easier and doesn't cost much more.
for (auto &Bucket : Buckets)
llvm::stable_sort(Bucket, [](HashData *LHS, HashData *RHS) {
return LHS->HashValue < RHS->HashValue;
});
}
namespace {
/// Base class for writing out Accelerator tables. It holds the common
/// functionality for the two Accelerator table types.
class AccelTableWriter {
protected:
AsmPrinter *const Asm; ///< Destination.
const AccelTableBase &Contents; ///< Data to emit.
/// Controls whether to emit duplicate hash and offset table entries for names
/// with identical hashes. Apple tables don't emit duplicate entries, DWARF v5
/// tables do.
const bool SkipIdenticalHashes;
void emitHashes() const;
/// Emit offsets to lists of entries with identical names. The offsets are
/// relative to the Base argument.
void emitOffsets(const MCSymbol *Base) const;
public:
AccelTableWriter(AsmPrinter *Asm, const AccelTableBase &Contents,
bool SkipIdenticalHashes)
: Asm(Asm), Contents(Contents), SkipIdenticalHashes(SkipIdenticalHashes) {
}
};
class AppleAccelTableWriter : public AccelTableWriter {
using Atom = AppleAccelTableData::Atom;
/// The fixed header of an Apple Accelerator Table.
struct Header {
uint32_t Magic = MagicHash;
uint16_t Version = 1;
uint16_t HashFunction = dwarf::DW_hash_function_djb;
uint32_t BucketCount;
uint32_t HashCount;
uint32_t HeaderDataLength;
/// 'HASH' magic value to detect endianness.
static const uint32_t MagicHash = 0x48415348;
Header(uint32_t BucketCount, uint32_t UniqueHashCount, uint32_t DataLength)
: BucketCount(BucketCount), HashCount(UniqueHashCount),
HeaderDataLength(DataLength) {}
void emit(AsmPrinter *Asm) const;
#ifndef NDEBUG
void print(raw_ostream &OS) const;
void dump() const { print(dbgs()); }
#endif
};
/// The HeaderData describes the structure of an Apple accelerator table
/// through a list of Atoms.
struct HeaderData {
/// In the case of data that is referenced via DW_FORM_ref_* the offset
/// base is used to describe the offset for all forms in the list of atoms.
uint32_t DieOffsetBase;
const SmallVector<Atom, 4> Atoms;
HeaderData(ArrayRef<Atom> AtomList, uint32_t Offset = 0)
: DieOffsetBase(Offset), Atoms(AtomList.begin(), AtomList.end()) {}
void emit(AsmPrinter *Asm) const;
#ifndef NDEBUG
void print(raw_ostream &OS) const;
void dump() const { print(dbgs()); }
#endif
};
Header Header;
HeaderData HeaderData;
const MCSymbol *SecBegin;
void emitBuckets() const;
void emitData() const;
public:
AppleAccelTableWriter(AsmPrinter *Asm, const AccelTableBase &Contents,
ArrayRef<Atom> Atoms, const MCSymbol *SecBegin)
: AccelTableWriter(Asm, Contents, true),
Header(Contents.getBucketCount(), Contents.getUniqueHashCount(),
8 + (Atoms.size() * 4)),
HeaderData(Atoms), SecBegin(SecBegin) {}
void emit() const;
#ifndef NDEBUG
void print(raw_ostream &OS) const;
void dump() const { print(dbgs()); }
#endif
};
/// Class responsible for emitting a DWARF v5 Accelerator Table. The only
/// public function is emit(), which performs the actual emission.
///
/// The class is templated in its data type. This allows us to emit both dyamic
/// and static data entries. A callback abstract the logic to provide a CU
/// index for a given entry, which is different per data type, but identical
/// for every entry in the same table.
template <typename DataT>
class Dwarf5AccelTableWriter : public AccelTableWriter {
struct Header {
uint16_t Version = 5;
uint16_t Padding = 0;
uint32_t CompUnitCount;
uint32_t LocalTypeUnitCount = 0;
uint32_t ForeignTypeUnitCount = 0;
uint32_t BucketCount;
uint32_t NameCount;
uint32_t AbbrevTableSize = 0;
uint32_t AugmentationStringSize = sizeof(AugmentationString);
char AugmentationString[8] = {'L', 'L', 'V', 'M', '0', '7', '0', '0'};
Header(uint32_t CompUnitCount, uint32_t BucketCount, uint32_t NameCount)
: CompUnitCount(CompUnitCount), BucketCount(BucketCount),
NameCount(NameCount) {}
void emit(Dwarf5AccelTableWriter &Ctx);
};
struct AttributeEncoding {
dwarf::Index Index;
dwarf::Form Form;
};
Header Header;
DenseMap<uint32_t, SmallVector<AttributeEncoding, 2>> Abbreviations;
ArrayRef<MCSymbol *> CompUnits;
llvm::function_ref<unsigned(const DataT &)> getCUIndexForEntry;
MCSymbol *ContributionEnd = nullptr;
MCSymbol *AbbrevStart = Asm->createTempSymbol("names_abbrev_start");
MCSymbol *AbbrevEnd = Asm->createTempSymbol("names_abbrev_end");
MCSymbol *EntryPool = Asm->createTempSymbol("names_entries");
DenseSet<uint32_t> getUniqueTags() const;
// Right now, we emit uniform attributes for all tags.
SmallVector<AttributeEncoding, 2> getUniformAttributes() const;
void emitCUList() const;
void emitBuckets() const;
void emitStringOffsets() const;
void emitAbbrevs() const;
void emitEntry(const DataT &Entry) const;
void emitData() const;
public:
Dwarf5AccelTableWriter(
AsmPrinter *Asm, const AccelTableBase &Contents,
ArrayRef<MCSymbol *> CompUnits,
llvm::function_ref<unsigned(const DataT &)> GetCUIndexForEntry);
void emit();
};
} // namespace
void AccelTableWriter::emitHashes() const {
uint64_t PrevHash = std::numeric_limits<uint64_t>::max();
unsigned BucketIdx = 0;
for (auto &Bucket : Contents.getBuckets()) {
for (auto &Hash : Bucket) {
uint32_t HashValue = Hash->HashValue;
if (SkipIdenticalHashes && PrevHash == HashValue)
continue;
Asm->OutStreamer->AddComment("Hash in Bucket " + Twine(BucketIdx));
Asm->emitInt32(HashValue);
PrevHash = HashValue;
}
BucketIdx++;
}
}
void AccelTableWriter::emitOffsets(const MCSymbol *Base) const {
const auto &Buckets = Contents.getBuckets();
uint64_t PrevHash = std::numeric_limits<uint64_t>::max();
for (size_t i = 0, e = Buckets.size(); i < e; ++i) {
for (auto *Hash : Buckets[i]) {
uint32_t HashValue = Hash->HashValue;
if (SkipIdenticalHashes && PrevHash == HashValue)
continue;
PrevHash = HashValue;
Asm->OutStreamer->AddComment("Offset in Bucket " + Twine(i));
Asm->emitLabelDifference(Hash->Sym, Base, Asm->getDwarfOffsetByteSize());
}
}
}
void AppleAccelTableWriter::Header::emit(AsmPrinter *Asm) const {
Asm->OutStreamer->AddComment("Header Magic");
Asm->emitInt32(Magic);
Asm->OutStreamer->AddComment("Header Version");
Asm->emitInt16(Version);
Asm->OutStreamer->AddComment("Header Hash Function");
Asm->emitInt16(HashFunction);
Asm->OutStreamer->AddComment("Header Bucket Count");
Asm->emitInt32(BucketCount);
Asm->OutStreamer->AddComment("Header Hash Count");
Asm->emitInt32(HashCount);
Asm->OutStreamer->AddComment("Header Data Length");
Asm->emitInt32(HeaderDataLength);
}
void AppleAccelTableWriter::HeaderData::emit(AsmPrinter *Asm) const {
Asm->OutStreamer->AddComment("HeaderData Die Offset Base");
Asm->emitInt32(DieOffsetBase);
Asm->OutStreamer->AddComment("HeaderData Atom Count");
Asm->emitInt32(Atoms.size());
for (const Atom &A : Atoms) {
Asm->OutStreamer->AddComment(dwarf::AtomTypeString(A.Type));
Asm->emitInt16(A.Type);
Asm->OutStreamer->AddComment(dwarf::FormEncodingString(A.Form));
Asm->emitInt16(A.Form);
}
}
void AppleAccelTableWriter::emitBuckets() const {
const auto &Buckets = Contents.getBuckets();
unsigned index = 0;
for (size_t i = 0, e = Buckets.size(); i < e; ++i) {
Asm->OutStreamer->AddComment("Bucket " + Twine(i));
if (!Buckets[i].empty())
Asm->emitInt32(index);
else
Asm->emitInt32(std::numeric_limits<uint32_t>::max());
// Buckets point in the list of hashes, not to the data. Do not increment
// the index multiple times in case of hash collisions.
uint64_t PrevHash = std::numeric_limits<uint64_t>::max();
for (auto *HD : Buckets[i]) {
uint32_t HashValue = HD->HashValue;
if (PrevHash != HashValue)
++index;
PrevHash = HashValue;
}
}
}
void AppleAccelTableWriter::emitData() const {
const auto &Buckets = Contents.getBuckets();
for (const AccelTableBase::HashList &Bucket : Buckets) {
uint64_t PrevHash = std::numeric_limits<uint64_t>::max();
for (auto &Hash : Bucket) {
// Terminate the previous entry if there is no hash collision with the
// current one.
if (PrevHash != std::numeric_limits<uint64_t>::max() &&
PrevHash != Hash->HashValue)
Asm->emitInt32(0);
// Remember to emit the label for our offset.
Asm->OutStreamer->emitLabel(Hash->Sym);
Asm->OutStreamer->AddComment(Hash->Name.getString());
Asm->emitDwarfStringOffset(Hash->Name);
Asm->OutStreamer->AddComment("Num DIEs");
Asm->emitInt32(Hash->Values.size());
for (const auto *V : Hash->Values)
static_cast<const AppleAccelTableData *>(V)->emit(Asm);
PrevHash = Hash->HashValue;
}
// Emit the final end marker for the bucket.
if (!Bucket.empty())
Asm->emitInt32(0);
}
}
void AppleAccelTableWriter::emit() const {
Header.emit(Asm);
HeaderData.emit(Asm);
emitBuckets();
emitHashes();
emitOffsets(SecBegin);
emitData();
}
template <typename DataT>
void Dwarf5AccelTableWriter<DataT>::Header::emit(Dwarf5AccelTableWriter &Ctx) {
assert(CompUnitCount > 0 && "Index must have at least one CU.");
AsmPrinter *Asm = Ctx.Asm;
Ctx.ContributionEnd =
Asm->emitDwarfUnitLength("names", "Header: unit length");
Asm->OutStreamer->AddComment("Header: version");
Asm->emitInt16(Version);
Asm->OutStreamer->AddComment("Header: padding");
Asm->emitInt16(Padding);
Asm->OutStreamer->AddComment("Header: compilation unit count");
Asm->emitInt32(CompUnitCount);
Asm->OutStreamer->AddComment("Header: local type unit count");
Asm->emitInt32(LocalTypeUnitCount);
Asm->OutStreamer->AddComment("Header: foreign type unit count");
Asm->emitInt32(ForeignTypeUnitCount);
Asm->OutStreamer->AddComment("Header: bucket count");
Asm->emitInt32(BucketCount);
Asm->OutStreamer->AddComment("Header: name count");
Asm->emitInt32(NameCount);
Asm->OutStreamer->AddComment("Header: abbreviation table size");
Asm->emitLabelDifference(Ctx.AbbrevEnd, Ctx.AbbrevStart, sizeof(uint32_t));
Asm->OutStreamer->AddComment("Header: augmentation string size");
assert(AugmentationStringSize % 4 == 0);
Asm->emitInt32(AugmentationStringSize);
Asm->OutStreamer->AddComment("Header: augmentation string");
Asm->OutStreamer->emitBytes({AugmentationString, AugmentationStringSize});
}
template <typename DataT>
DenseSet<uint32_t> Dwarf5AccelTableWriter<DataT>::getUniqueTags() const {
DenseSet<uint32_t> UniqueTags;
for (auto &Bucket : Contents.getBuckets()) {
for (auto *Hash : Bucket) {
for (auto *Value : Hash->Values) {
unsigned Tag = static_cast<const DataT *>(Value)->getDieTag();
UniqueTags.insert(Tag);
}
}
}
return UniqueTags;
}
template <typename DataT>
SmallVector<typename Dwarf5AccelTableWriter<DataT>::AttributeEncoding, 2>
Dwarf5AccelTableWriter<DataT>::getUniformAttributes() const {
SmallVector<AttributeEncoding, 2> UA;
if (CompUnits.size() > 1) {
size_t LargestCUIndex = CompUnits.size() - 1;
dwarf::Form Form = DIEInteger::BestForm(/*IsSigned*/ false, LargestCUIndex);
UA.push_back({dwarf::DW_IDX_compile_unit, Form});
}
UA.push_back({dwarf::DW_IDX_die_offset, dwarf::DW_FORM_ref4});
return UA;
}
template <typename DataT>
void Dwarf5AccelTableWriter<DataT>::emitCUList() const {
for (const auto &CU : enumerate(CompUnits)) {
Asm->OutStreamer->AddComment("Compilation unit " + Twine(CU.index()));
Asm->emitDwarfSymbolReference(CU.value());
}
}
template <typename DataT>
void Dwarf5AccelTableWriter<DataT>::emitBuckets() const {
uint32_t Index = 1;
for (const auto &Bucket : enumerate(Contents.getBuckets())) {
Asm->OutStreamer->AddComment("Bucket " + Twine(Bucket.index()));
Asm->emitInt32(Bucket.value().empty() ? 0 : Index);
Index += Bucket.value().size();
}
}
template <typename DataT>
void Dwarf5AccelTableWriter<DataT>::emitStringOffsets() const {
for (const auto &Bucket : enumerate(Contents.getBuckets())) {
for (auto *Hash : Bucket.value()) {
DwarfStringPoolEntryRef String = Hash->Name;
Asm->OutStreamer->AddComment("String in Bucket " + Twine(Bucket.index()) +
": " + String.getString());
Asm->emitDwarfStringOffset(String);
}
}
}
template <typename DataT>
void Dwarf5AccelTableWriter<DataT>::emitAbbrevs() const {
Asm->OutStreamer->emitLabel(AbbrevStart);
for (const auto &Abbrev : Abbreviations) {
Asm->OutStreamer->AddComment("Abbrev code");
assert(Abbrev.first != 0);
Asm->emitULEB128(Abbrev.first);
Asm->OutStreamer->AddComment(dwarf::TagString(Abbrev.first));
Asm->emitULEB128(Abbrev.first);
for (const auto &AttrEnc : Abbrev.second) {
Asm->emitULEB128(AttrEnc.Index, dwarf::IndexString(AttrEnc.Index).data());
Asm->emitULEB128(AttrEnc.Form,
dwarf::FormEncodingString(AttrEnc.Form).data());
}
Asm->emitULEB128(0, "End of abbrev");
Asm->emitULEB128(0, "End of abbrev");
}
Asm->emitULEB128(0, "End of abbrev list");
Asm->OutStreamer->emitLabel(AbbrevEnd);
}
template <typename DataT>
void Dwarf5AccelTableWriter<DataT>::emitEntry(const DataT &Entry) const {
auto AbbrevIt = Abbreviations.find(Entry.getDieTag());
assert(AbbrevIt != Abbreviations.end() &&
"Why wasn't this abbrev generated?");
Asm->emitULEB128(AbbrevIt->first, "Abbreviation code");
for (const auto &AttrEnc : AbbrevIt->second) {
Asm->OutStreamer->AddComment(dwarf::IndexString(AttrEnc.Index));
switch (AttrEnc.Index) {
case dwarf::DW_IDX_compile_unit: {
DIEInteger ID(getCUIndexForEntry(Entry));
ID.emitValue(Asm, AttrEnc.Form);
break;
}
case dwarf::DW_IDX_die_offset:
assert(AttrEnc.Form == dwarf::DW_FORM_ref4);
Asm->emitInt32(Entry.getDieOffset());
break;
default:
llvm_unreachable("Unexpected index attribute!");
}
}
}
template <typename DataT> void Dwarf5AccelTableWriter<DataT>::emitData() const {
Asm->OutStreamer->emitLabel(EntryPool);
for (auto &Bucket : Contents.getBuckets()) {
for (auto *Hash : Bucket) {
// Remember to emit the label for our offset.
Asm->OutStreamer->emitLabel(Hash->Sym);
for (const auto *Value : Hash->Values)
emitEntry(*static_cast<const DataT *>(Value));
Asm->OutStreamer->AddComment("End of list: " + Hash->Name.getString());
Asm->emitInt8(0);
}
}
}
template <typename DataT>
Dwarf5AccelTableWriter<DataT>::Dwarf5AccelTableWriter(
AsmPrinter *Asm, const AccelTableBase &Contents,
ArrayRef<MCSymbol *> CompUnits,
llvm::function_ref<unsigned(const DataT &)> getCUIndexForEntry)
: AccelTableWriter(Asm, Contents, false),
Header(CompUnits.size(), Contents.getBucketCount(),
Contents.getUniqueNameCount()),
CompUnits(CompUnits), getCUIndexForEntry(std::move(getCUIndexForEntry)) {
DenseSet<uint32_t> UniqueTags = getUniqueTags();
SmallVector<AttributeEncoding, 2> UniformAttributes = getUniformAttributes();
Abbreviations.reserve(UniqueTags.size());
for (uint32_t Tag : UniqueTags)
Abbreviations.try_emplace(Tag, UniformAttributes);
}
template <typename DataT> void Dwarf5AccelTableWriter<DataT>::emit() {
Header.emit(*this);
emitCUList();
emitBuckets();
emitHashes();
emitStringOffsets();
emitOffsets(EntryPool);
emitAbbrevs();
emitData();
Asm->OutStreamer->emitValueToAlignment(4, 0);
Asm->OutStreamer->emitLabel(ContributionEnd);
}
void llvm::emitAppleAccelTableImpl(AsmPrinter *Asm, AccelTableBase &Contents,
StringRef Prefix, const MCSymbol *SecBegin,
ArrayRef<AppleAccelTableData::Atom> Atoms) {
Contents.finalize(Asm, Prefix);
AppleAccelTableWriter(Asm, Contents, Atoms, SecBegin).emit();
}
void llvm::emitDWARF5AccelTable(
AsmPrinter *Asm, AccelTable<DWARF5AccelTableData> &Contents,
const DwarfDebug &DD, ArrayRef<std::unique_ptr<DwarfCompileUnit>> CUs) {
std::vector<MCSymbol *> CompUnits;
SmallVector<unsigned, 1> CUIndex(CUs.size());
int Count = 0;
for (const auto &CU : enumerate(CUs)) {
if (CU.value()->getCUNode()->getNameTableKind() !=
DICompileUnit::DebugNameTableKind::Default)
continue;
CUIndex[CU.index()] = Count++;
assert(CU.index() == CU.value()->getUniqueID());
const DwarfCompileUnit *MainCU =
DD.useSplitDwarf() ? CU.value()->getSkeleton() : CU.value().get();
CompUnits.push_back(MainCU->getLabelBegin());
}
if (CompUnits.empty())
return;
Asm->OutStreamer->SwitchSection(
Asm->getObjFileLowering().getDwarfDebugNamesSection());
Contents.finalize(Asm, "names");
Dwarf5AccelTableWriter<DWARF5AccelTableData>(
Asm, Contents, CompUnits,
[&](const DWARF5AccelTableData &Entry) {
const DIE *CUDie = Entry.getDie().getUnitDie();
return CUIndex[DD.lookupCU(CUDie)->getUniqueID()];
})
.emit();
}
void llvm::emitDWARF5AccelTable(
AsmPrinter *Asm, AccelTable<DWARF5AccelTableStaticData> &Contents,
ArrayRef<MCSymbol *> CUs,
llvm::function_ref<unsigned(const DWARF5AccelTableStaticData &)>
getCUIndexForEntry) {
Contents.finalize(Asm, "names");
Dwarf5AccelTableWriter<DWARF5AccelTableStaticData>(Asm, Contents, CUs,
getCUIndexForEntry)
.emit();
}
void AppleAccelTableOffsetData::emit(AsmPrinter *Asm) const {
assert(Die.getDebugSectionOffset() <= UINT32_MAX &&
"The section offset exceeds the limit.");
Asm->emitInt32(Die.getDebugSectionOffset());
}
void AppleAccelTableTypeData::emit(AsmPrinter *Asm) const {
assert(Die.getDebugSectionOffset() <= UINT32_MAX &&
"The section offset exceeds the limit.");
Asm->emitInt32(Die.getDebugSectionOffset());
Asm->emitInt16(Die.getTag());
Asm->emitInt8(0);
}
void AppleAccelTableStaticOffsetData::emit(AsmPrinter *Asm) const {
Asm->emitInt32(Offset);
}
void AppleAccelTableStaticTypeData::emit(AsmPrinter *Asm) const {
Asm->emitInt32(Offset);
Asm->emitInt16(Tag);
Asm->emitInt8(ObjCClassIsImplementation ? dwarf::DW_FLAG_type_implementation
: 0);
Asm->emitInt32(QualifiedNameHash);
}
constexpr AppleAccelTableData::Atom AppleAccelTableTypeData::Atoms[];
constexpr AppleAccelTableData::Atom AppleAccelTableOffsetData::Atoms[];
constexpr AppleAccelTableData::Atom AppleAccelTableStaticOffsetData::Atoms[];
constexpr AppleAccelTableData::Atom AppleAccelTableStaticTypeData::Atoms[];
#ifndef NDEBUG
void AppleAccelTableWriter::Header::print(raw_ostream &OS) const {
OS << "Magic: " << format("0x%x", Magic) << "\n"
<< "Version: " << Version << "\n"
<< "Hash Function: " << HashFunction << "\n"
<< "Bucket Count: " << BucketCount << "\n"
<< "Header Data Length: " << HeaderDataLength << "\n";
}
void AppleAccelTableData::Atom::print(raw_ostream &OS) const {
OS << "Type: " << dwarf::AtomTypeString(Type) << "\n"
<< "Form: " << dwarf::FormEncodingString(Form) << "\n";
}
void AppleAccelTableWriter::HeaderData::print(raw_ostream &OS) const {
OS << "DIE Offset Base: " << DieOffsetBase << "\n";
for (auto Atom : Atoms)
Atom.print(OS);
}
void AppleAccelTableWriter::print(raw_ostream &OS) const {
Header.print(OS);
HeaderData.print(OS);
Contents.print(OS);
SecBegin->print(OS, nullptr);
}
void AccelTableBase::HashData::print(raw_ostream &OS) const {
OS << "Name: " << Name.getString() << "\n";
OS << " Hash Value: " << format("0x%x", HashValue) << "\n";
OS << " Symbol: ";
if (Sym)
OS << *Sym;
else
OS << "<none>";
OS << "\n";
for (auto *Value : Values)
Value->print(OS);
}
void AccelTableBase::print(raw_ostream &OS) const {
// Print Content.
OS << "Entries: \n";
for (const auto &Entry : Entries) {
OS << "Name: " << Entry.first() << "\n";
for (auto *V : Entry.second.Values)
V->print(OS);
}
OS << "Buckets and Hashes: \n";
for (auto &Bucket : Buckets)
for (auto &Hash : Bucket)
Hash->print(OS);
OS << "Data: \n";
for (auto &E : Entries)
E.second.print(OS);
}
void DWARF5AccelTableData::print(raw_ostream &OS) const {
OS << " Offset: " << getDieOffset() << "\n";
OS << " Tag: " << dwarf::TagString(getDieTag()) << "\n";
}
void DWARF5AccelTableStaticData::print(raw_ostream &OS) const {
OS << " Offset: " << getDieOffset() << "\n";
OS << " Tag: " << dwarf::TagString(getDieTag()) << "\n";
}
void AppleAccelTableOffsetData::print(raw_ostream &OS) const {
OS << " Offset: " << Die.getOffset() << "\n";
}
void AppleAccelTableTypeData::print(raw_ostream &OS) const {
OS << " Offset: " << Die.getOffset() << "\n";
OS << " Tag: " << dwarf::TagString(Die.getTag()) << "\n";
}
void AppleAccelTableStaticOffsetData::print(raw_ostream &OS) const {
OS << " Static Offset: " << Offset << "\n";
}
void AppleAccelTableStaticTypeData::print(raw_ostream &OS) const {
OS << " Static Offset: " << Offset << "\n";
OS << " QualifiedNameHash: " << format("%x\n", QualifiedNameHash) << "\n";
OS << " Tag: " << dwarf::TagString(Tag) << "\n";
OS << " ObjCClassIsImplementation: "
<< (ObjCClassIsImplementation ? "true" : "false");
OS << "\n";
}
#endif
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