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87 lines
2.8 KiB
87 lines
2.8 KiB
4 months ago
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//===-- DWARFDebugInfo.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 LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGINFO_H
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#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGINFO_H
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#include <map>
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#include <vector>
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#include "DWARFDIE.h"
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#include "DWARFTypeUnit.h"
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#include "DWARFUnit.h"
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#include "SymbolFileDWARF.h"
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#include "lldb/lldb-private.h"
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#include "llvm/Support/Error.h"
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namespace lldb_private {
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class DWARFContext;
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}
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class DWARFDebugInfo {
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public:
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typedef dw_offset_t (*Callback)(SymbolFileDWARF *dwarf2Data,
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DWARFUnit *cu,
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DWARFDebugInfoEntry *die,
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const dw_offset_t next_offset,
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const uint32_t depth, void *userData);
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explicit DWARFDebugInfo(SymbolFileDWARF &dwarf,
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lldb_private::DWARFContext &context);
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size_t GetNumUnits();
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DWARFUnit *GetUnitAtIndex(size_t idx);
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DWARFUnit *GetUnitAtOffset(DIERef::Section section, dw_offset_t cu_offset,
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uint32_t *idx_ptr = nullptr);
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DWARFUnit *GetUnitContainingDIEOffset(DIERef::Section section,
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dw_offset_t die_offset);
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DWARFUnit *GetUnit(const DIERef &die_ref);
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DWARFTypeUnit *GetTypeUnitForHash(uint64_t hash);
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bool ContainsTypeUnits();
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DWARFDIE GetDIEForDIEOffset(DIERef::Section section,
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dw_offset_t die_offset);
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DWARFDIE GetDIE(const DIERef &die_ref);
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enum {
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eDumpFlag_Verbose = (1 << 0), // Verbose dumping
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eDumpFlag_ShowForm = (1 << 1), // Show the DW_form type
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eDumpFlag_ShowAncestors =
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(1 << 2) // Show all parent DIEs when dumping single DIEs
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};
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llvm::Expected<DWARFDebugAranges &> GetCompileUnitAranges();
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protected:
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typedef std::vector<DWARFUnitSP> UnitColl;
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SymbolFileDWARF &m_dwarf;
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lldb_private::DWARFContext &m_context;
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llvm::once_flag m_units_once_flag;
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UnitColl m_units;
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std::unique_ptr<DWARFDebugAranges>
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m_cu_aranges_up; // A quick address to compile unit table
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std::vector<std::pair<uint64_t, uint32_t>> m_type_hash_to_unit_index;
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private:
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// All parsing needs to be done partially any managed by this class as
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// accessors are called.
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void ParseUnitHeadersIfNeeded();
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void ParseUnitsFor(DIERef::Section section);
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uint32_t FindUnitIndex(DIERef::Section section, dw_offset_t offset);
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DWARFDebugInfo(const DWARFDebugInfo &) = delete;
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const DWARFDebugInfo &operator=(const DWARFDebugInfo &) = delete;
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};
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#endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGINFO_H
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