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📄 ARMException.cpp(4.45 KB)
📄 AccelTable.cpp(24.07 KB)
📄 AddressPool.cpp(2.61 KB)
📄 AddressPool.h(1.93 KB)
📄 AsmPrinter.cpp(123.3 KB)
📄 AsmPrinterDwarf.cpp(9.88 KB)
📄 AsmPrinterInlineAsm.cpp(25.75 KB)
📄 ByteStreamer.h(3.93 KB)
📄 CodeViewDebug.cpp(115.03 KB)
📄 CodeViewDebug.h(17.9 KB)
📄 DIE.cpp(25.69 KB)
📄 DIEHash.cpp(14.17 KB)
📄 DIEHash.h(3.37 KB)
📄 DIEHashAttributes.def(2.02 KB)
📄 DbgEntityHistoryCalculator.cpp(14.88 KB)
📄 DebugHandlerBase.cpp(10.8 KB)
📄 DebugLocEntry.h(6.96 KB)
📄 DebugLocStream.cpp(1.36 KB)
📄 DebugLocStream.h(5.78 KB)
📄 DwarfCFIException.cpp(6.1 KB)
📄 DwarfCompileUnit.cpp(55.27 KB)
📄 DwarfCompileUnit.h(13.61 KB)
📄 DwarfDebug.cpp(128.56 KB)
📄 DwarfDebug.h(27.39 KB)
📄 DwarfException.h(3.23 KB)
📄 DwarfExpression.cpp(21.36 KB)
📄 DwarfExpression.h(15.03 KB)
📄 DwarfFile.cpp(4.31 KB)
📄 DwarfFile.h(5.86 KB)
📄 DwarfStringPool.cpp(4.72 KB)
📄 DwarfStringPool.h(2.07 KB)
📄 DwarfUnit.cpp(64.61 KB)
📄 DwarfUnit.h(14.34 KB)
📄 EHStreamer.cpp(25.33 KB)
📄 EHStreamer.h(5.66 KB)
📄 ErlangGCPrinter.cpp(4.16 KB)
📄 OcamlGCPrinter.cpp(6.38 KB)
📄 WasmException.cpp(4.09 KB)
📄 WasmException.h(1.32 KB)
📄 WinCFGuard.cpp(3.62 KB)
📄 WinCFGuard.h(1.77 KB)
📄 WinException.cpp(50.88 KB)
📄 WinException.h(4.1 KB)

Editing: DwarfFile.h

//===- llvm/CodeGen/DwarfFile.h - Dwarf Debug Framework ---------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFFILE_H
#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFFILE_H

#include "DwarfStringPool.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/CodeGen/DIE.h"
#include "llvm/IR/Metadata.h"
#include "llvm/Support/Allocator.h"
#include <map>
#include <memory>
#include <utility>

namespace llvm {

class AsmPrinter;
class DbgEntity;
class DbgVariable;
class DbgLabel;
class DwarfCompileUnit;
class DwarfUnit;
class LexicalScope;
class MCSection;

// Data structure to hold a range for range lists.
struct RangeSpan {
  const MCSymbol *Begin;
  const MCSymbol *End;
};

struct RangeSpanList {
  // Index for locating within the debug_range section this particular span.
  MCSymbol *Label;
  const DwarfCompileUnit *CU;
  // List of ranges.
  SmallVector<RangeSpan, 2> Ranges;
};

class DwarfFile {
  // Target of Dwarf emission, used for sizing of abbreviations.
  AsmPrinter *Asm;

BumpPtrAllocator AbbrevAllocator;

// Used to uniquely define abbreviations.
  DIEAbbrevSet Abbrevs;

// A pointer to all units in the section.
  SmallVector<std::unique_ptr<DwarfCompileUnit>, 1> CUs;

DwarfStringPool StrPool;

// List of range lists for a given compile unit, separate from the ranges for
  // the CU itself.
  SmallVector<RangeSpanList, 1> CURangeLists;

/// DWARF v5: The symbol that designates the start of the contribution to
  /// the string offsets table. The contribution is shared by all units.
  MCSymbol *StringOffsetsStartSym = nullptr;

/// DWARF v5: The symbol that designates the base of the range list table.
  /// The table is shared by all units.
  MCSymbol *RnglistsTableBaseSym = nullptr;

/// The variables of a lexical scope.
  struct ScopeVars {
    /// We need to sort Args by ArgNo and check for duplicates. This could also
    /// be implemented as a list or vector + std::lower_bound().
    std::map<unsigned, DbgVariable *> Args;
    SmallVector<DbgVariable *, 8> Locals;
  };
  /// Collection of DbgVariables of each lexical scope.
  DenseMap<LexicalScope *, ScopeVars> ScopeVariables;

/// Collection of DbgLabels of each lexical scope.
  using LabelList = SmallVector<DbgLabel *, 4>;
  DenseMap<LexicalScope *, LabelList> ScopeLabels;

// Collection of abstract subprogram DIEs.
  DenseMap<const MDNode *, DIE *> AbstractSPDies;
  DenseMap<const DINode *, std::unique_ptr<DbgEntity>> AbstractEntities;

/// Maps MDNodes for type system with the corresponding DIEs. These DIEs can
  /// be shared across CUs, that is why we keep the map here instead
  /// of in DwarfCompileUnit.
  DenseMap<const MDNode *, DIE *> DITypeNodeToDieMap;

public:
  DwarfFile(AsmPrinter *AP, StringRef Pref, BumpPtrAllocator &DA);

const SmallVectorImpl<std::unique_ptr<DwarfCompileUnit>> &getUnits() {
    return CUs;
  }

std::pair<uint32_t, RangeSpanList *> addRange(const DwarfCompileUnit &CU,
                                                SmallVector<RangeSpan, 2> R);

/// getRangeLists - Get the vector of range lists.
  const SmallVectorImpl<RangeSpanList> &getRangeLists() const {
    return CURangeLists;
  }

/// Compute the size and offset of a DIE given an incoming Offset.
  unsigned computeSizeAndOffset(DIE &Die, unsigned Offset);

/// Compute the size and offset of all the DIEs.
  void computeSizeAndOffsets();

/// Compute the size and offset of all the DIEs in the given unit.
  /// \returns The size of the root DIE.
  unsigned computeSizeAndOffsetsForUnit(DwarfUnit *TheU);

/// Add a unit to the list of CUs.
  void addUnit(std::unique_ptr<DwarfCompileUnit> U);

/// Emit all of the units to the section listed with the given
  /// abbreviation section.
  void emitUnits(bool UseOffsets);

/// Emit the given unit to its section.
  void emitUnit(DwarfUnit *TheU, bool UseOffsets);

/// Emit a set of abbreviations to the specific section.
  void emitAbbrevs(MCSection *);

/// Emit all of the strings to the section given. If OffsetSection is
  /// non-null, emit a table of string offsets to it. If UseRelativeOffsets
  /// is false, emit absolute offsets to the strings. Otherwise, emit
  /// relocatable references to the strings if they are supported by the target.
  void emitStrings(MCSection *StrSection, MCSection *OffsetSection = nullptr,
                   bool UseRelativeOffsets = false);

/// Returns the string pool.
  DwarfStringPool &getStringPool() { return StrPool; }

MCSymbol *getStringOffsetsStartSym() const { return StringOffsetsStartSym; }
  void setStringOffsetsStartSym(MCSymbol *Sym) { StringOffsetsStartSym = Sym; }

MCSymbol *getRnglistsTableBaseSym() const { return RnglistsTableBaseSym; }
  void setRnglistsTableBaseSym(MCSymbol *Sym) { RnglistsTableBaseSym = Sym; }

/// \returns false if the variable was merged with a previous one.
  bool addScopeVariable(LexicalScope *LS, DbgVariable *Var);

void addScopeLabel(LexicalScope *LS, DbgLabel *Label);

DenseMap<LexicalScope *, ScopeVars> &getScopeVariables() {
    return ScopeVariables;
  }

DenseMap<LexicalScope *, LabelList> &getScopeLabels() {
    return ScopeLabels;
  }

DenseMap<const MDNode *, DIE *> &getAbstractSPDies() {
    return AbstractSPDies;
  }

DenseMap<const DINode *, std::unique_ptr<DbgEntity>> &getAbstractEntities() {
    return AbstractEntities;
  }

void insertDIE(const MDNode *TypeMD, DIE *Die) {
    DITypeNodeToDieMap.insert(std::make_pair(TypeMD, Die));
  }

DIE *getDIE(const MDNode *TypeMD) {
    return DITypeNodeToDieMap.lookup(TypeMD);
  }
};

} // end namespace llvm

#endif // LLVM_LIB_CODEGEN_ASMPRINTER_DWARFFILE_H

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Editing: DwarfFile.h

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