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| //===-- DWARFDebugInfo.h ----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef SymbolFileDWARF_DWARFDebugInfo_h_
#define SymbolFileDWARF_DWARFDebugInfo_h_
#include <map>
#include <vector>
#include "DWARFDIE.h"
#include "DWARFTypeUnit.h"
#include "DWARFUnit.h"
#include "SymbolFileDWARF.h"
#include "lldb/Core/STLUtils.h"
#include "lldb/lldb-private.h"
#include "llvm/Support/Error.h"
namespace lldb_private {
class DWARFContext;
}
typedef std::multimap<const char *, dw_offset_t, CStringCompareFunctionObject>
CStringToDIEMap;
typedef CStringToDIEMap::iterator CStringToDIEMapIter;
typedef CStringToDIEMap::const_iterator CStringToDIEMapConstIter;
class DWARFDebugInfo {
public:
typedef dw_offset_t (*Callback)(SymbolFileDWARF *dwarf2Data,
DWARFUnit *cu,
DWARFDebugInfoEntry *die,
const dw_offset_t next_offset,
const uint32_t depth, void *userData);
explicit DWARFDebugInfo(SymbolFileDWARF &dwarf,
lldb_private::DWARFContext &context);
size_t GetNumUnits();
DWARFUnit *GetUnitAtIndex(lldb::user_id_t idx);
DWARFUnit *GetUnitAtOffset(DIERef::Section section, dw_offset_t cu_offset,
uint32_t *idx_ptr = nullptr);
DWARFUnit *GetUnitContainingDIEOffset(DIERef::Section section,
dw_offset_t die_offset);
DWARFUnit *GetUnit(const DIERef &die_ref);
DWARFTypeUnit *GetTypeUnitForHash(uint64_t hash);
bool ContainsTypeUnits();
DWARFDIE GetDIEForDIEOffset(DIERef::Section section,
dw_offset_t die_offset);
DWARFDIE GetDIE(const DIERef &die_ref);
enum {
eDumpFlag_Verbose = (1 << 0), // Verbose dumping
eDumpFlag_ShowForm = (1 << 1), // Show the DW_form type
eDumpFlag_ShowAncestors =
(1 << 2) // Show all parent DIEs when dumping single DIEs
};
llvm::Expected<DWARFDebugAranges &> GetCompileUnitAranges();
protected:
typedef std::vector<DWARFUnitSP> UnitColl;
SymbolFileDWARF &m_dwarf;
lldb_private::DWARFContext &m_context;
UnitColl m_units;
std::unique_ptr<DWARFDebugAranges>
m_cu_aranges_up; // A quick address to compile unit table
std::vector<std::pair<uint64_t, uint32_t>> m_type_hash_to_unit_index;
private:
// All parsing needs to be done partially any managed by this class as
// accessors are called.
void ParseUnitHeadersIfNeeded();
void ParseUnitsFor(DIERef::Section section);
uint32_t FindUnitIndex(DIERef::Section section, dw_offset_t offset);
DISALLOW_COPY_AND_ASSIGN(DWARFDebugInfo);
};
#endif // SymbolFileDWARF_DWARFDebugInfo_h_
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