1 //===-- llvm/CodeGen/DwarfFile.h - Dwarf Debug Framework -------*- C++ -*--===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef CODEGEN_ASMPRINTER_DWARFFILE_H__
11 #define CODEGEN_ASMPRINTER_DWARFFILE_H__
13 #include "llvm/ADT/DenseMap.h"
14 #include "llvm/ADT/FoldingSet.h"
15 #include "llvm/ADT/SmallVector.h"
16 #include "llvm/ADT/StringMap.h"
17 #include "llvm/Support/Allocator.h"
18 #include "AddressPool.h"
19 #include "DwarfStringPool.h"
35 // Target of Dwarf emission, used for sizing of abbreviations.
38 // Used to uniquely define abbreviations.
39 FoldingSet<DIEAbbrev> AbbreviationsSet;
41 // A list of all the unique abbreviations in use.
42 std::vector<DIEAbbrev *> Abbreviations;
44 // A pointer to all units in the section.
45 SmallVector<std::unique_ptr<DwarfUnit>, 1> CUs;
47 DwarfStringPool StrPool;
50 DwarfFile(AsmPrinter *AP, StringRef Pref, BumpPtrAllocator &DA);
54 const SmallVectorImpl<std::unique_ptr<DwarfUnit>> &getUnits() { return CUs; }
56 /// \brief Compute the size and offset of a DIE given an incoming Offset.
57 unsigned computeSizeAndOffset(DIE &Die, unsigned Offset);
59 /// \brief Compute the size and offset of all the DIEs.
60 void computeSizeAndOffsets();
62 /// \brief Define a unique number for the abbreviation.
63 void assignAbbrevNumber(DIEAbbrev &Abbrev);
65 /// \brief Add a unit to the list of CUs.
66 void addUnit(std::unique_ptr<DwarfUnit> U);
68 /// \brief Emit all of the units to the section listed with the given
69 /// abbreviation section.
70 void emitUnits(DwarfDebug *DD, const MCSymbol *ASectionSym);
72 /// \brief Emit a set of abbreviations to the specific section.
73 void emitAbbrevs(const MCSection *);
75 /// \brief Emit all of the strings to the section given.
76 void emitStrings(const MCSection *StrSection,
77 const MCSection *OffsetSection = nullptr,
78 const MCSymbol *StrSecSym = nullptr);
80 /// \brief Returns the string pool.
81 DwarfStringPool &getStringPool() { return StrPool; }