88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
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//===- DWARFDebugAbbrev.h ---------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
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#define LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
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#include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"
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#include "llvm/Support/DataExtractor.h"
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#include <cstdint>
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#include <map>
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#include <vector>
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namespace llvm {
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class raw_ostream;
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class DWARFAbbreviationDeclarationSet {
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uint64_t Offset;
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/// Code of the first abbreviation, if all abbreviations in the set have
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/// consecutive codes. UINT32_MAX otherwise.
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uint32_t FirstAbbrCode;
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std::vector<DWARFAbbreviationDeclaration> Decls;
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using const_iterator =
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std::vector<DWARFAbbreviationDeclaration>::const_iterator;
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public:
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DWARFAbbreviationDeclarationSet();
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uint64_t getOffset() const { return Offset; }
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void dump(raw_ostream &OS) const;
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bool extract(DataExtractor Data, uint64_t *OffsetPtr);
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const DWARFAbbreviationDeclaration *
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getAbbreviationDeclaration(uint32_t AbbrCode) const;
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const_iterator begin() const {
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return Decls.begin();
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}
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const_iterator end() const {
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return Decls.end();
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}
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private:
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void clear();
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};
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class DWARFDebugAbbrev {
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using DWARFAbbreviationDeclarationSetMap =
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std::map<uint64_t, DWARFAbbreviationDeclarationSet>;
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mutable DWARFAbbreviationDeclarationSetMap AbbrDeclSets;
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mutable DWARFAbbreviationDeclarationSetMap::const_iterator PrevAbbrOffsetPos;
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mutable Optional<DataExtractor> Data;
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public:
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DWARFDebugAbbrev();
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const DWARFAbbreviationDeclarationSet *
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getAbbreviationDeclarationSet(uint64_t CUAbbrOffset) const;
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void dump(raw_ostream &OS) const;
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void parse() const;
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void extract(DataExtractor Data);
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DWARFAbbreviationDeclarationSetMap::const_iterator begin() const {
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parse();
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return AbbrDeclSets.begin();
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}
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DWARFAbbreviationDeclarationSetMap::const_iterator end() const {
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return AbbrDeclSets.end();
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}
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private:
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void clear();
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};
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
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