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https://github.com/c64scene-ar/llvm-6502.git
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08e5ef25fb
There's only ever one address pool, not one per DWARF output file, so let's just have one. (similar refactoring of the string pool to come soon) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207026 91177308-0d34-0410-b5e6-96231b3b80d8
102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
//===-- llvm/CodeGen/DwarfFile.h - Dwarf Debug Framework -------*- C++ -*--===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CODEGEN_ASMPRINTER_DWARFFILE_H__
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#define CODEGEN_ASMPRINTER_DWARFFILE_H__
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/FoldingSet.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/Support/Allocator.h"
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#include "AddressPool.h"
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#include <vector>
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#include <string>
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#include <memory>
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namespace llvm {
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class AsmPrinter;
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class DwarfUnit;
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class DIEAbbrev;
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class MCSymbol;
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class DIE;
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class StringRef;
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class DwarfDebug;
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class MCSection;
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class DwarfFile {
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// Target of Dwarf emission, used for sizing of abbreviations.
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AsmPrinter *Asm;
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// Used to uniquely define abbreviations.
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FoldingSet<DIEAbbrev> AbbreviationsSet;
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// A list of all the unique abbreviations in use.
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std::vector<DIEAbbrev *> Abbreviations;
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// A pointer to all units in the section.
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SmallVector<std::unique_ptr<DwarfUnit>, 1> CUs;
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// Collection of strings for this unit and assorted symbols.
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// A String->Symbol mapping of strings used by indirect
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// references.
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typedef StringMap<std::pair<MCSymbol *, unsigned>, BumpPtrAllocator &>
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StrPool;
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StrPool StringPool;
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unsigned NextStringPoolNumber;
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std::string StringPref;
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public:
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DwarfFile(AsmPrinter *AP, const char *Pref, BumpPtrAllocator &DA);
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~DwarfFile();
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const SmallVectorImpl<std::unique_ptr<DwarfUnit>> &getUnits() { return CUs; }
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/// \brief Compute the size and offset of a DIE given an incoming Offset.
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unsigned computeSizeAndOffset(DIE &Die, unsigned Offset);
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/// \brief Compute the size and offset of all the DIEs.
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void computeSizeAndOffsets();
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/// \brief Define a unique number for the abbreviation.
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void assignAbbrevNumber(DIEAbbrev &Abbrev);
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/// \brief Add a unit to the list of CUs.
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void addUnit(std::unique_ptr<DwarfUnit> U);
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/// \brief Emit all of the units to the section listed with the given
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/// abbreviation section.
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void emitUnits(DwarfDebug *DD, const MCSymbol *ASectionSym);
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/// \brief Emit a set of abbreviations to the specific section.
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void emitAbbrevs(const MCSection *);
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/// \brief Emit all of the strings to the section given.
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void emitStrings(const MCSection *StrSection,
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const MCSection *OffsetSection = nullptr,
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const MCSymbol *StrSecSym = nullptr);
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/// \brief Returns the entry into the start of the pool.
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MCSymbol *getStringPoolSym();
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/// \brief Returns an entry into the string pool with the given
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/// string text.
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MCSymbol *getStringPoolEntry(StringRef Str);
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/// \brief Returns the index into the string pool with the given
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/// string text.
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unsigned getStringPoolIndex(StringRef Str);
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/// \brief Returns the string pool.
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StrPool *getStringPool() { return &StringPool; }
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};
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}
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#endif
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