1 //===-- DWARFDebugInfo.h ----------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef SymbolFileDWARF_DWARFDebugInfo_h_ 11 #define SymbolFileDWARF_DWARFDebugInfo_h_ 12 13 #include <vector> 14 #include <map> 15 16 #include "lldb/lldb-private.h" 17 #include "lldb/lldb-private.h" 18 #include "SymbolFileDWARF.h" 19 20 typedef std::multimap<const char*, dw_offset_t, CStringCompareFunctionObject> CStringToDIEMap; 21 typedef CStringToDIEMap::iterator CStringToDIEMapIter; 22 typedef CStringToDIEMap::const_iterator CStringToDIEMapConstIter; 23 24 typedef std::shared_ptr<DWARFCompileUnit> DWARFCompileUnitSP; 25 26 class DWARFDebugInfo 27 { 28 public: 29 typedef dw_offset_t (*Callback)( 30 SymbolFileDWARF* dwarf2Data, 31 DWARFCompileUnitSP& cu_shared_ptr, 32 DWARFDebugInfoEntry* die, 33 const dw_offset_t next_offset, 34 const uint32_t depth, 35 void* userData); 36 37 DWARFDebugInfo(); 38 void SetDwarfData(SymbolFileDWARF* dwarf2Data); 39 40 bool LookupAddress( 41 const dw_addr_t address, 42 const dw_offset_t cu_offset, // Can be valid (find in .debug_aranges), or DW_INVALID_OFFSET if we need to search manually 43 DWARFCompileUnitSP& cu_shared_ptr, 44 DWARFDebugInfoEntry** function_die, 45 DWARFDebugInfoEntry** block_die); 46 47 void AddCompileUnit(DWARFCompileUnitSP& cu); 48 size_t GetNumCompileUnits(); 49 bool ContainsCompileUnit (const DWARFCompileUnit *cu) const; 50 DWARFCompileUnit* GetCompileUnitAtIndex(uint32_t idx); 51 DWARFCompileUnitSP GetCompileUnit(dw_offset_t cu_offset, uint32_t* idx_ptr = NULL); 52 DWARFCompileUnitSP GetCompileUnitContainingDIE(dw_offset_t die_offset); 53 54 DWARFDebugInfoEntry* GetDIEPtr(dw_offset_t die_offset, DWARFCompileUnitSP* cu_sp_ptr); 55 DWARFDebugInfoEntry* GetDIEPtrWithCompileUnitHint (dw_offset_t die_offset, DWARFCompileUnit**cu_handle); 56 57 const DWARFDebugInfoEntry* GetDIEPtrContainingOffset(dw_offset_t die_offset, DWARFCompileUnitSP* cu_sp_ptr); 58 59 void Dump(lldb_private::Stream *s, const uint32_t die_offset, const uint32_t recurse_depth); 60 static void Parse(SymbolFileDWARF* parser, Callback callback, void* userData); 61 static void Verify(lldb_private::Stream *s, SymbolFileDWARF* dwarf2Data); 62 static void Dump(lldb_private::Stream *s, SymbolFileDWARF* dwarf2Data, const uint32_t die_offset, const uint32_t recurse_depth); 63 bool Find(const char* name, bool ignore_case, std::vector<dw_offset_t>& die_offsets) const; 64 bool Find(lldb_private::RegularExpression& re, std::vector<dw_offset_t>& die_offsets) const; 65 66 enum 67 { 68 eDumpFlag_Verbose = (1<<0), // Verbose dumping 69 eDumpFlag_ShowForm = (1<<1), // Show the DW_form type 70 eDumpFlag_ShowAncestors = (1<<2) // Show all parent DIEs when dumping single DIEs 71 }; 72 73 DWARFDebugAranges & 74 GetCompileUnitAranges (); 75 76 protected: 77 SymbolFileDWARF* m_dwarf2Data; 78 typedef std::vector<DWARFCompileUnitSP> CompileUnitColl; 79 CompileUnitColl m_compile_units; 80 std::unique_ptr<DWARFDebugAranges> m_cu_aranges_ap; // A quick address to compile unit table 81 82 private: 83 // All parsing needs to be done partially any managed by this class as accessors are called. 84 void ParseCompileUnitHeadersIfNeeded(); 85 86 DISALLOW_COPY_AND_ASSIGN (DWARFDebugInfo); 87 }; 88 89 #endif // SymbolFileDWARF_DWARFDebugInfo_h_ 90
