a8022fa70d
Fixed an issue that would happen when using debug map with DWARF in the .o files where we wouldn't ever track down the actual definition for a type when things were in namespaces. We now serialize the decl context information into an intermediate format which allows us to track down the correct definition for a type regardless of which DWARF symbol file it comes from. We do this by creating a "DWARFDeclContext" object that contains the DW_TAG + name for each item in a decl context which we can then use to veto potential accelerator table matches. For example, the accelerator tables store the basename of the type, so if you have "std::vector<int>", we would end up with an accelerator table entry for the type that contained "vector<int>", which we would then search for using a DWARFDeclContext object that contained:
[0] DW_TAG_class_type "vector<int>"
[1] DW_TAG_namespace "std"
This is currently used to track down forward declarations for things like "class a:🅱️:Foo;".
llvm-svn: 155488
90 lines
3.5 KiB
C++
90 lines
3.5 KiB
C++
//===-- DWARFDebugInfo.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 SymbolFileDWARF_DWARFDebugInfo_h_
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#define SymbolFileDWARF_DWARFDebugInfo_h_
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#include <vector>
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#include <map>
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#include "lldb/lldb-private.h"
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#include "lldb/lldb-private.h"
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#include "SymbolFileDWARF.h"
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typedef std::multimap<const char*, dw_offset_t, CStringCompareFunctionObject> CStringToDIEMap;
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typedef CStringToDIEMap::iterator CStringToDIEMapIter;
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typedef CStringToDIEMap::const_iterator CStringToDIEMapConstIter;
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typedef STD_SHARED_PTR(DWARFCompileUnit) DWARFCompileUnitSP;
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class DWARFDebugInfo
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{
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public:
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typedef dw_offset_t (*Callback)(
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SymbolFileDWARF* dwarf2Data,
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DWARFCompileUnitSP& cu_shared_ptr,
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DWARFDebugInfoEntry* die,
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const dw_offset_t next_offset,
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const uint32_t depth,
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void* userData);
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DWARFDebugInfo();
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void SetDwarfData(SymbolFileDWARF* dwarf2Data);
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bool LookupAddress(
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const dw_addr_t address,
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const dw_offset_t cu_offset, // Can be valid (find in .debug_aranges), or DW_INVALID_OFFSET if we need to search manually
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DWARFCompileUnitSP& cu_shared_ptr,
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DWARFDebugInfoEntry** function_die,
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DWARFDebugInfoEntry** block_die);
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void AddCompileUnit(DWARFCompileUnitSP& cu);
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uint32_t GetNumCompileUnits();
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bool ContainsCompileUnit (const DWARFCompileUnit *cu) const;
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DWARFCompileUnit* GetCompileUnitAtIndex(uint32_t idx);
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DWARFCompileUnitSP GetCompileUnit(dw_offset_t cu_offset, uint32_t* idx_ptr = NULL);
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DWARFCompileUnitSP GetCompileUnitContainingDIE(dw_offset_t die_offset);
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DWARFDebugInfoEntry* GetDIEPtr(dw_offset_t die_offset, DWARFCompileUnitSP* cu_sp_ptr);
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DWARFDebugInfoEntry* GetDIEPtrWithCompileUnitHint (dw_offset_t die_offset, DWARFCompileUnit**cu_handle);
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const DWARFDebugInfoEntry* GetDIEPtrContainingOffset(dw_offset_t die_offset, DWARFCompileUnitSP* cu_sp_ptr);
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void Dump(lldb_private::Stream *s, const uint32_t die_offset, const uint32_t recurse_depth);
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static void Parse(SymbolFileDWARF* parser, Callback callback, void* userData);
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static void Verify(lldb_private::Stream *s, SymbolFileDWARF* dwarf2Data);
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static void Dump(lldb_private::Stream *s, SymbolFileDWARF* dwarf2Data, const uint32_t die_offset, const uint32_t recurse_depth);
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bool Find(const char* name, bool ignore_case, std::vector<dw_offset_t>& die_offsets) const;
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bool Find(lldb_private::RegularExpression& re, std::vector<dw_offset_t>& die_offsets) const;
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enum
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{
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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 = (1<<2) // Show all parent DIEs when dumping single DIEs
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};
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DWARFDebugAranges &
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GetCompileUnitAranges ();
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protected:
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SymbolFileDWARF* m_dwarf2Data;
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typedef std::vector<DWARFCompileUnitSP> CompileUnitColl;
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CompileUnitColl m_compile_units;
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std::auto_ptr<DWARFDebugAranges> m_cu_aranges_ap; // A quick address to compile unit table
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private:
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// All parsing needs to be done partially any managed by this class as accessors are called.
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void ParseCompileUnitHeadersIfNeeded();
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DISALLOW_COPY_AND_ASSIGN (DWARFDebugInfo);
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};
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#endif // SymbolFileDWARF_DWARFDebugInfo_h_
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