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ff6a5cb9e4
(They are called emitDwarfDIE and emitDwarfAbbrevs in their new home) llvm-dsymutil wants to reuse that code, but it doesn't have a DwarfUnit or a DwarfDebug object to call those. It has access to an AsmPrinter though. Having emitDIE in the AsmPrinter also removes the DwarfFile dependency on DwarfDebug, and thus the patch drops that field. Differential Revision: http://reviews.llvm.org/D8024 llvm-svn: 231210
115 lines
3.4 KiB
C++
115 lines
3.4 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 LLVM_LIB_CODEGEN_ASMPRINTER_DWARFFILE_H
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#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFFILE_H
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#include "AddressPool.h"
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#include "DwarfStringPool.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 <memory>
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#include <string>
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#include <vector>
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namespace llvm {
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class AsmPrinter;
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class DbgVariable;
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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 DISubprogram;
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class LexicalScope;
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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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DwarfStringPool StrPool;
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// Collection of dbg variables of a scope.
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DenseMap<LexicalScope *, SmallVector<DbgVariable *, 8>> ScopeVariables;
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// Collection of abstract subprogram DIEs.
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DenseMap<const MDNode *, DIE *> AbstractSPDies;
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/// Maps MDNodes for type system with the corresponding DIEs. These DIEs can
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/// be shared across CUs, that is why we keep the map here instead
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/// of in DwarfCompileUnit.
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DenseMap<const MDNode *, DIE *> MDTypeNodeToDieMap;
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public:
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DwarfFile(AsmPrinter *AP, StringRef 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(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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/// \brief Returns the string pool.
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DwarfStringPool &getStringPool() { return StrPool; }
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/// \returns false if the variable was merged with a previous one.
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bool addScopeVariable(LexicalScope *LS, DbgVariable *Var);
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DenseMap<LexicalScope *, SmallVector<DbgVariable *, 8>> &getScopeVariables() {
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return ScopeVariables;
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}
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DenseMap<const MDNode *, DIE *> &getAbstractSPDies() {
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return AbstractSPDies;
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}
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void insertDIE(const MDNode *TypeMD, DIE *Die) {
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MDTypeNodeToDieMap.insert(std::make_pair(TypeMD, Die));
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}
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DIE *getDIE(const MDNode *TypeMD) {
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return MDTypeNodeToDieMap.lookup(TypeMD);
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}
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};
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}
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#endif
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