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85d436d90a
And since it /looked/ like the DwarfStrSectionSym was unused, I tried removing it - but then it turned out that DwarfStringPool was reconstructing the same label (and expecting it to have already been emitted) and uses that. So I kept it around, but wanted to pass it in to users - since it seemed a bit silly for DwarfStringPool to have it passed in and returned but itself have no use for it. The only two users don't handle strings in both .dwo and .o files so they only ever need the one symbol - no need to keep it (and have an unused symbol) in the DwarfStringPool used for fission/.dwo. Refactor a bunch of accelerator table usage to remove duplication so I didn't have to touch 4-5 callers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217628 91177308-0d34-0410-b5e6-96231b3b80d8
84 lines
2.4 KiB
C++
84 lines
2.4 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 "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 "DwarfStringPool.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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DwarfStringPool StrPool;
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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(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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/// \brief Returns the string pool.
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DwarfStringPool &getStringPool() { return StrPool; }
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};
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}
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#endif
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