234c681686
This fixes a silly bug where we were accidentally freeing the memory used to store the decompressed .debug_names data. I had actually considered this scenario when writing the class and put appropriate precautions in place -- I just failed to wire it all up correctly. This was only an issue for compressed sections because in case of uncompressed ones we would access the data straight out of the mmapped object file. llvm-svn: 334717
84 lines
3.4 KiB
C++
84 lines
3.4 KiB
C++
//===-- DebugNamesDWARFIndex.h ---------------------------------*- 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 LLDB_DEBUGNAMESDWARFINDEX_H
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#define LLDB_DEBUGNAMESDWARFINDEX_H
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#include "Plugins/SymbolFile/DWARF/DWARFIndex.h"
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#include "Plugins/SymbolFile/DWARF/LogChannelDWARF.h"
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#include "Plugins/SymbolFile/DWARF/ManualDWARFIndex.h"
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#include "lldb/Utility/ConstString.h"
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#include "llvm/DebugInfo/DWARF/DWARFAcceleratorTable.h"
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namespace lldb_private {
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class DebugNamesDWARFIndex : public DWARFIndex {
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public:
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static llvm::Expected<std::unique_ptr<DebugNamesDWARFIndex>>
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Create(Module &module, DWARFDataExtractor debug_names,
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DWARFDataExtractor debug_str, DWARFDebugInfo *debug_info);
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void Preload() override { m_fallback.Preload(); }
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void GetGlobalVariables(ConstString basename, DIEArray &offsets) override;
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void GetGlobalVariables(const RegularExpression ®ex,
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DIEArray &offsets) override;
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void GetGlobalVariables(const DWARFUnit &cu, DIEArray &offsets) override;
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void GetObjCMethods(ConstString class_name, DIEArray &offsets) override {}
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void GetCompleteObjCClass(ConstString class_name, bool must_be_implementation,
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DIEArray &offsets) override {}
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void GetTypes(ConstString name, DIEArray &offsets) override;
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void GetTypes(const DWARFDeclContext &context, DIEArray &offsets) override;
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void GetNamespaces(ConstString name, DIEArray &offsets) override;
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void GetFunctions(ConstString name, DWARFDebugInfo &info,
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const CompilerDeclContext &parent_decl_ctx,
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uint32_t name_type_mask,
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std::vector<DWARFDIE> &dies) override;
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void GetFunctions(const RegularExpression ®ex,
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DIEArray &offsets) override;
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void ReportInvalidDIEOffset(dw_offset_t offset,
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llvm::StringRef name) override {}
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void Dump(Stream &s) override;
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private:
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DebugNamesDWARFIndex(Module &module,
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std::unique_ptr<llvm::DWARFDebugNames> debug_names_up,
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DWARFDataExtractor debug_names_data,
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DWARFDataExtractor debug_str_data,
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DWARFDebugInfo &debug_info)
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: DWARFIndex(module), m_debug_info(debug_info),
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m_debug_names_data(debug_names_data), m_debug_str_data(debug_str_data),
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m_debug_names_up(std::move(debug_names_up)),
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m_fallback(module, &debug_info, GetUnits(*m_debug_names_up)) {}
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DWARFDebugInfo &m_debug_info;
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// LLVM DWARFDebugNames will hold a non-owning reference to this data, so keep
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// track of the ownership here.
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DWARFDataExtractor m_debug_names_data;
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DWARFDataExtractor m_debug_str_data;
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using DebugNames = llvm::DWARFDebugNames;
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std::unique_ptr<DebugNames> m_debug_names_up;
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ManualDWARFIndex m_fallback;
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DIERef ToDIERef(const DebugNames::Entry &entry);
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void Append(const DebugNames::Entry &entry, DIEArray &offsets);
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static void MaybeLogLookupError(llvm::Error error,
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const DebugNames::NameIndex &ni,
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llvm::StringRef name);
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static llvm::DenseSet<dw_offset_t> GetUnits(const DebugNames &debug_names);
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};
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} // namespace lldb_private
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#endif // LLDB_DEBUGNAMESDWARFINDEX_H
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