diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h')
-rw-r--r-- | contrib/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h new file mode 100644 index 000000000000..3985eb28cd6d --- /dev/null +++ b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h @@ -0,0 +1,84 @@ +//===-- llvm/CodeGen/DwarfFile.h - Dwarf Debug Framework -------*- C++ -*--===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef CODEGEN_ASMPRINTER_DWARFFILE_H__ +#define CODEGEN_ASMPRINTER_DWARFFILE_H__ + +#include "llvm/ADT/DenseMap.h" +#include "llvm/ADT/FoldingSet.h" +#include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/StringMap.h" +#include "llvm/Support/Allocator.h" +#include "AddressPool.h" +#include "DwarfStringPool.h" + +#include <vector> +#include <string> +#include <memory> + +namespace llvm { +class AsmPrinter; +class DwarfUnit; +class DIEAbbrev; +class MCSymbol; +class DIE; +class StringRef; +class DwarfDebug; +class MCSection; +class DwarfFile { + // Target of Dwarf emission, used for sizing of abbreviations. + AsmPrinter *Asm; + + // Used to uniquely define abbreviations. + FoldingSet<DIEAbbrev> AbbreviationsSet; + + // A list of all the unique abbreviations in use. + std::vector<DIEAbbrev *> Abbreviations; + + // A pointer to all units in the section. + SmallVector<std::unique_ptr<DwarfUnit>, 1> CUs; + + DwarfStringPool StrPool; + +public: + DwarfFile(AsmPrinter *AP, StringRef Pref, BumpPtrAllocator &DA); + + ~DwarfFile(); + + const SmallVectorImpl<std::unique_ptr<DwarfUnit>> &getUnits() { return CUs; } + + /// \brief Compute the size and offset of a DIE given an incoming Offset. + unsigned computeSizeAndOffset(DIE &Die, unsigned Offset); + + /// \brief Compute the size and offset of all the DIEs. + void computeSizeAndOffsets(); + + /// \brief Define a unique number for the abbreviation. + void assignAbbrevNumber(DIEAbbrev &Abbrev); + + /// \brief Add a unit to the list of CUs. + void addUnit(std::unique_ptr<DwarfUnit> U); + + /// \brief Emit all of the units to the section listed with the given + /// abbreviation section. + void emitUnits(DwarfDebug *DD, const MCSymbol *ASectionSym); + + /// \brief Emit a set of abbreviations to the specific section. + void emitAbbrevs(const MCSection *); + + /// \brief Emit all of the strings to the section given. + void emitStrings(const MCSection *StrSection, + const MCSection *OffsetSection = nullptr, + const MCSymbol *StrSecSym = nullptr); + + /// \brief Returns the string pool. + DwarfStringPool &getStringPool() { return StrPool; } +}; +} +#endif |