DwarfUnit.h Source File (original) (raw)

13#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFUNIT_H

14#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFUNIT_H

22#include

23#include

25namespace llvm {

37protected:

84 template

92 if (Attribute != 0 && Asm->TM.Options.DebugStrictDwarf &&

94 return;

98 }

100public:

101

103

105

114

115

117

118

119

120

121

122

123

124

126

127

129 const DIScope *Context) = 0;

130

131

133 const DIScope *Context) = 0;

134

136

137

138

139

140

141

143

144

146

147

148

149

150

151

153

155

156

158

159

162

164

165

167 std::optionaldwarf::Form Form, int64_t Integer);

168

171

172

175

176

177

178

179

180

181

183

184

187

189

190

192

193

194

197

198

201

202

204

205

207

208

210

211

213

214

218

219

221

222

231

232

238

239

241

242

244

245

247

248

250

251

253

254

255

256

257

260

265 bool Minimal = false);

266

268 bool SkipSPAttributes = false);

269

270

272

273

275

276

278

279

281

282

283

284

285

288

289

290

292

294 return DD->useSegmentedStringOffsetsTable();

295 }

296

297

298

300 return sizeof(int16_t) +

301 Asm->getDwarfOffsetByteSize() +

302 sizeof(int8_t) +

303 (DD->getDwarfVersion() >= 5 ? sizeof(int8_t)

304 : 0);

305 }

306

307

309

310

312

313

315

317

319

320

323

324

327

328

330

331

333

334

335

337 const DIE &TyDIE);

338

339protected:

341

342

344

345

346

348

349

351

353

354 return Minimal || SP->getDeclaration();

355 }

356

358 bool IgnoreScope) {

359 if (IgnoreScope)

362 }

363

364private:

367 }

368

369

370

371 void addIntAsBlock(DIE &Die, dwarf::Attribute Attribute, const APInt &Val);

372

373

374 void addDiscriminant(DIE &Variant, Constant *Discriminant, bool IsUnsigned);

375

377 void constructTypeDIE(DIE &Buffer, const DIFixedPointType *BTy);

379 void constructTypeDIE(DIE &Buffer, const DIDerivedType *DTy);

380 void constructTypeDIE(DIE &Buffer, const DISubroutineType *CTy);

381 void constructSubrangeDIE(DIE &Buffer, const DISubrangeType *SR,

382 bool ForArray = false);

383 void constructSubrangeDIE(DIE &Buffer, const DISubrange *SR);

384 void constructGenericSubrangeDIE(DIE &Buffer, const DIGenericSubrange *SR);

385 void constructArrayTypeDIE(DIE &Buffer, const DICompositeType *CTy);

386 void constructEnumTypeDIE(DIE &Buffer, const DICompositeType *CTy);

387 DIE &constructMemberDIE(DIE &Buffer, const DIDerivedType *DT);

388 void constructTemplateTypeParameterDIE(DIE &Buffer,

389 const DITemplateTypeParameter *TP);

390 void constructTemplateValueParameterDIE(DIE &Buffer,

391 const DITemplateValueParameter *TVP);

392

393

394

395

396 int64_t getDefaultLowerBound() const;

397

398

399 DIE *getIndexTyDie();

400

401

402 void setIndexTyDie(DIE *D) { IndexTyDie = D; }

403

404 virtual void finishNonUnitTypeDIE(DIE& D, const DICompositeType *CTy) = 0;

405

406 virtual bool isDwoUnit() const = 0;

408

409

410

411 bool isCompatibleWithVersion(uint16_t Version) const;

412};

413

416 const DIE *Ty;

419 bool UsedLineTable = false;

420

421 unsigned getOrCreateSourceID(const DIFile *File) override;

423 bool isDwoUnit() const override;

424

425public:

429

431

434

435

436 void emitHeader(bool UseOffsets) override;

439 Asm->getDwarfOffsetByteSize();

440 }

442 const DIScope *Context) override;

444 const DIScope *Context) override;

446};

447}

448#endif

assert(UImm &&(UImm !=~static_cast< T >(0)) &&"Invalid immediate!")

static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")

static GCRegistry::Add< StatepointGC > D("statepoint-example", "an example strategy for statepoint")

This file defines the DenseMap class.

Class for arbitrary precision integers.

Annotations lets you mark points and ranges inside source code, for tests:

This class is intended to be used as a driving class for all asm writers.

Functions, function parameters, and return types can have attributes to indicate how they should be t...

ConstantFP - Floating Point Values [float, double].

This is the shared class of boolean and integer constants.

DISourceLanguageName getSourceLanguage() const

DIEBlock - Represents a block of values.

A pointer to another debug information entry.

DIELoc - Represents an expression location.

virtual const MCSymbol * getCrossSectionRelativeBaseAddress() const

LLVM_ABI DIEUnit(dwarf::Tag UnitTag)

A structured debug information entry.

Represents a module in the programming language, for example, a Clang module, or a Fortran module.

Tagged DWARF-like metadata node.

Base class for scope-like contexts.

Wrapper structure that holds a language name and its version.

Subprogram description. Uses SubclassData1.

Collects and handles dwarf debug information.

DwarfTypeUnit(DwarfCompileUnit &CU, AsmPrinter *A, DwarfDebug *DW, DwarfFile *DWU, unsigned UniqueID, MCDwarfDwoLineTable *SplitLineTable=nullptr)

void addGlobalTypeImpl(const DIType *Ty, const DIE &Die, const DIScope *Context) override

Add a new global type to the compile unit.

unsigned getHeaderSize() const override

Compute the size of a header for this unit, not including the initial length field.

Definition DwarfUnit.h:437

DwarfCompileUnit & getCU() override

Definition DwarfUnit.h:445

uint64_t getTypeSignature() const

Returns Type Signature.

Definition DwarfUnit.h:432

void emitHeader(bool UseOffsets) override

Emit the header for this unit, not including the initial length field.

void addGlobalName(StringRef Name, const DIE &Die, const DIScope *Context) override

Add a new global name to the compile unit.

void setTypeSignature(uint64_t Signature)

Definition DwarfUnit.h:430

void setType(const DIE *Ty)

Definition DwarfUnit.h:433

virtual DIE * getOrCreateTypeDIE(const MDNode *TyNode)

Find existing DIE or create new DIE for the given type.

void addInt(DIE &Die, dwarf::Attribute Attribute, const APInt &Integer, bool Unsigned)

Add an integer attribute data and value; value may be any width.

DwarfDebug & getDwarfDebug() const

Definition DwarfUnit.h:113

void addThrownTypes(DIE &Die, DINodeArray ThrownTypes)

Add thrown types.

void addStringOffsetsStart()

Add the DW_AT_str_offsets_base attribute to the unit DIE.

void addAnnotation(DIE &Buffer, DINodeArray Annotations)

Add DW_TAG_LLVM_annotation.

std::vector< DIEBlock * > DIEBlocks

A list of all the DIEBlocks in use.

Definition DwarfUnit.h:67

std::vector< DIELoc * > DIELocs

A list of all the DIELocs in use.

Definition DwarfUnit.h:70

void addBlock(DIE &Die, dwarf::Attribute Attribute, DIELoc *Loc)

Add block data.

void addTemplateParams(DIE &Buffer, DINodeArray TParams)

Add template parameters in buffer.

virtual DIE * getOrCreateContextDIE(const DIScope *Context)

Get context owner's DIE.

bool useSegmentedStringOffsetsTable() const

Definition DwarfUnit.h:293

bool applySubprogramDefinitionAttributes(const DISubprogram *SP, DIE &SPDie, bool Minimal)

DIELoc * getDIELoc()

Returns a fresh newly allocated DIELoc.

Definition DwarfUnit.h:145

void updateAcceleratorTables(const DIScope *Context, const DIType *Ty, const DIE &TyDIE)

If this is a named finished type then include it in the list of types for the accelerator tables.

virtual void emitHeader(bool UseOffsets)=0

Emit the header for this unit, not including the initial length field.

void addAttribute(DIEValueList &Die, dwarf::Attribute Attribute, dwarf::Form Form, T &&Value)

Definition DwarfUnit.h:85

void addOpAddress(DIELoc &Die, const MCSymbol *Sym)

Add a dwarf op address data and value using the form given and an op of either DW_FORM_addr or DW_FOR...

void addUInt(DIEValueList &Die, dwarf::Attribute Attribute, std::optional< dwarf::Form > Form, uint64_t Integer)

Add an unsigned integer attribute data and value.

void addString(DIE &Die, dwarf::Attribute Attribute, StringRef Str)

Add a string attribute data and value.

void addConstantValue(DIE &Die, const ConstantInt *CI, const DIType *Ty)

Add constant value entry in variable DIE.

DIE * getOrCreateNameSpace(const DINamespace *NS)

void insertDIE(const DINode *Desc, DIE *D)

Insert DIE into the map.

void addAccess(DIE &Die, DINode::DIFlags Flags)

Add the accessibility attribute.

void addSectionDelta(DIE &Die, dwarf::Attribute Attribute, const MCSymbol *Hi, const MCSymbol *Lo)

addSectionDelta - Add a label delta attribute data and value.

void addGlobalType(const DIType *Ty, const DIE &Die, const DIScope *Context)

DIE * createTypeDIE(const DIScope *Context, DIE &ContextDIE, const DIType *Ty)

Creates type DIE with specific context.

bool shouldPlaceInUnitDIE(const DISubprogram *SP, bool Minimal)

Definition DwarfUnit.h:352

DwarfDebug * DD

Definition DwarfUnit.h:56

DenseMap< DIE *, const DINode * > ContainingTypeMap

This map is used to keep track of subprogram DIEs that need DW_AT_containing_type attribute.

Definition DwarfUnit.h:75

const DICompileUnit * CUNode

MDNode for the compile unit.

Definition DwarfUnit.h:41

virtual unsigned getOrCreateSourceID(const DIFile *File)=0

Look up the source ID for the given file.

virtual DIE * getOrCreateSubprogramDIE(const DISubprogram *SP, const Function *FnHint, bool Minimal=false)

DIE * getOrCreateSubprogramContextDIE(const DISubprogram *SP, bool IgnoreScope)

Definition DwarfUnit.h:357

virtual void addGlobalTypeImpl(const DIType *Ty, const DIE &Die, const DIScope *Context)=0

Add a new global type to the compile unit.

void addDIETypeSignature(DIE &Die, uint64_t Signature)

Add a type's DW_AT_signature and set the declaration flag.

std::optional< unsigned > constructSubprogramArguments(DIE &Buffer, DITypeRefArray Args)

Construct function argument DIEs.

virtual DwarfCompileUnit & getCU()=0

DIE * getDIE(const DINode *D) const

Returns the DIE map slot for the specified debug variable.

AsmPrinter * getAsmPrinter() const

Definition DwarfUnit.h:104

virtual unsigned getHeaderSize() const

Compute the size of a header for this unit, not including the initial length field.

Definition DwarfUnit.h:299

bool hasContent() const

Return true if this compile unit has something to write out.

Definition DwarfUnit.h:116

MCSymbol * LabelBegin

The start of the unit within its section.

Definition DwarfUnit.h:50

void addSInt(DIEValueList &Die, dwarf::Attribute Attribute, std::optional< dwarf::Form > Form, int64_t Integer)

Add an signed integer attribute data and value.

DwarfUnit(dwarf::Tag, const DICompileUnit *Node, AsmPrinter *A, DwarfDebug *DW, DwarfFile *DWU, unsigned UniqueID=0)

void addLabelDelta(DIEValueList &Die, dwarf::Attribute Attribute, const MCSymbol *Hi, const MCSymbol *Lo)

Add a label delta attribute data and value.

void addLinkageName(DIE &Die, StringRef LinkageName)

Add a linkage name, if it isn't empty.

MCSymbol * getEndLabel() const

Definition DwarfUnit.h:110

std::string getParentContextString(const DIScope *Context) const

Get string containing language specific context for a global name.

void addSourceLine(DIE &Die, unsigned Line, unsigned Column, const DIFile *File)

Add location information to specified debug information entry.

void emitCommonHeader(bool UseOffsets, dwarf::UnitType UT)

Emit the common part of the header for this unit.

BumpPtrAllocator DIEValueAllocator

Definition DwarfUnit.h:44

DIE * IndexTyDie

An anonymous type for index type. Owned by DIEUnit.

Definition DwarfUnit.h:60

void addRnglistsBase()

Add the DW_AT_rnglists_base attribute to the unit DIE.

DIE * getOrCreateModule(const DIModule *M)

const DICompileUnit * getCUNode() const

Definition DwarfUnit.h:112

DIE & createAndAddDIE(dwarf::Tag Tag, DIE &Parent, const DINode *N=nullptr)

Create a DIE with the given Tag, add the DIE to its parent, and call insertDIE if MD is not null.

DwarfFile * DU

Definition DwarfUnit.h:57

void addSectionOffset(DIE &Die, dwarf::Attribute Attribute, uint64_t Integer)

Add an offset into a section attribute data and value.

DIE * getOrCreateStaticMemberDIE(const DIDerivedType *DT)

Create new static data member DIE.

void addLabel(DIEValueList &Die, dwarf::Attribute Attribute, dwarf::Form Form, const MCSymbol *Label)

Add a Dwarf label attribute data and value.

void addConstantFPValue(DIE &Die, const ConstantFP *CFP)

Add constant value entry in variable DIE.

void constructContainingTypeDIEs()

Construct DIEs for types that contain vtables.

unsigned UniqueID

A numeric ID unique among all CUs in the module.

Definition DwarfUnit.h:39

void addSectionLabel(DIE &Die, dwarf::Attribute Attribute, const MCSymbol *Label, const MCSymbol *Sec)

Add a Dwarf section label attribute data and value.

bool isShareableAcrossCUs(const DINode *D) const

Check whether the DIE for this MDNode can be shared across CUs.

llvm::dwarf::SourceLanguage getSourceLanguage() const

void addPoolOpAddress(DIEValueList &Die, const MCSymbol *Label)

MCSymbol * getLabelBegin() const

Get the the symbol for start of the section for this unit.

Definition DwarfUnit.h:106

DenseMap< const MDNode *, DIE * > MDNodeToDieMap

Tracks the mapping of unit level debug information variables to debug information entries.

Definition DwarfUnit.h:64

void constructTypeDIE(DIE &Buffer, const DICompositeType *CTy)

virtual void addGlobalName(StringRef Name, const DIE &Die, const DIScope *Context)=0

Add a new global name to the compile unit.

MCSymbol * EndLabel

Emitted at the end of the CU and used to compute the CU Length field.

Definition DwarfUnit.h:53

void addFlag(DIE &Die, dwarf::Attribute Attribute)

Add a flag that is true to the DIE.

AsmPrinter * Asm

Target of Dwarf emission.

Definition DwarfUnit.h:47

unsigned getUniqueID() const

Gets Unique ID for this unit.

Definition DwarfUnit.h:102

void addType(DIE &Entity, const DIType *Ty, dwarf::Attribute Attribute=dwarf::DW_AT_type)

Add a new type attribute to the specified entity.

void applySubprogramAttributes(const DISubprogram *SP, DIE &SPDie, bool SkipSPAttributes=false)

void addDIEEntry(DIE &Die, dwarf::Attribute Attribute, DIE &Entry)

Add a DIE attribute data and value.

MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...

StringRef - Represent a constant reference to a string, i.e.

LLVM Value Representation.

LLVM_ABI unsigned AttributeVersion(Attribute A)

UnitType

Constants for unit types in DWARF v5.

This is an optimization pass for GlobalISel generic memory operations.

FunctionAddr VTableAddr uintptr_t uintptr_t Version

BumpPtrAllocatorImpl<> BumpPtrAllocator

The standard BumpPtrAllocator which just uses the default template parameters.