1 //===-- SymbolFilePDB.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 lldb_Plugins_SymbolFile_PDB_SymbolFilePDB_h_
11 #define lldb_Plugins_SymbolFile_PDB_SymbolFilePDB_h_
12 
13 #include "lldb/Core/UniqueCStringMap.h"
14 #include "lldb/Symbol/SymbolFile.h"
15 #include "lldb/Symbol/VariableList.h"
16 #include "lldb/Utility/UserID.h"
17 
18 #include "llvm/ADT/DenseMap.h"
19 #include "llvm/DebugInfo/PDB/IPDBSession.h"
20 #include "llvm/DebugInfo/PDB/PDB.h"
21 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
22 
23 class SymbolFilePDB : public lldb_private::SymbolFile {
24 public:
25   //------------------------------------------------------------------
26   // Static Functions
27   //------------------------------------------------------------------
28   static void Initialize();
29 
30   static void Terminate();
31 
32   static void DebuggerInitialize(lldb_private::Debugger &debugger);
33 
34   static lldb_private::ConstString GetPluginNameStatic();
35 
36   static const char *GetPluginDescriptionStatic();
37 
38   static lldb_private::SymbolFile *
39   CreateInstance(lldb_private::ObjectFile *obj_file);
40 
41   //------------------------------------------------------------------
42   // Constructors and Destructors
43   //------------------------------------------------------------------
44   SymbolFilePDB(lldb_private::ObjectFile *ofile);
45 
46   ~SymbolFilePDB() override;
47 
48   uint32_t CalculateAbilities() override;
49 
50   void InitializeObject() override;
51 
52   //------------------------------------------------------------------
53   // Compile Unit function calls
54   //------------------------------------------------------------------
55 
56   uint32_t GetNumCompileUnits() override;
57 
58   lldb::CompUnitSP ParseCompileUnitAtIndex(uint32_t index) override;
59 
60   lldb::LanguageType
61   ParseCompileUnitLanguage(const lldb_private::SymbolContext &sc) override;
62 
63   size_t
64   ParseCompileUnitFunctions(const lldb_private::SymbolContext &sc) override;
65 
66   bool
67   ParseCompileUnitLineTable(const lldb_private::SymbolContext &sc) override;
68 
69   bool
70   ParseCompileUnitDebugMacros(const lldb_private::SymbolContext &sc) override;
71 
72   bool ParseCompileUnitSupportFiles(
73       const lldb_private::SymbolContext &sc,
74       lldb_private::FileSpecList &support_files) override;
75 
76   bool ParseImportedModules(
77       const lldb_private::SymbolContext &sc,
78       std::vector<lldb_private::ConstString> &imported_modules) override;
79 
80   size_t ParseFunctionBlocks(const lldb_private::SymbolContext &sc) override;
81 
82   size_t ParseTypes(const lldb_private::SymbolContext &sc) override;
83 
84   size_t
85   ParseVariablesForContext(const lldb_private::SymbolContext &sc) override;
86 
87   lldb_private::Type *ResolveTypeUID(lldb::user_id_t type_uid) override;
88 
89   bool CompleteType(lldb_private::CompilerType &compiler_type) override;
90 
91   lldb_private::CompilerDecl GetDeclForUID(lldb::user_id_t uid) override;
92 
93   lldb_private::CompilerDeclContext
94   GetDeclContextForUID(lldb::user_id_t uid) override;
95 
96   lldb_private::CompilerDeclContext
97   GetDeclContextContainingUID(lldb::user_id_t uid) override;
98 
99   void
100   ParseDeclsForContext(lldb_private::CompilerDeclContext decl_ctx) override;
101 
102   uint32_t ResolveSymbolContext(const lldb_private::Address &so_addr,
103                                 uint32_t resolve_scope,
104                                 lldb_private::SymbolContext &sc) override;
105 
106   uint32_t
107   ResolveSymbolContext(const lldb_private::FileSpec &file_spec, uint32_t line,
108                        bool check_inlines, uint32_t resolve_scope,
109                        lldb_private::SymbolContextList &sc_list) override;
110 
111   uint32_t
112   FindGlobalVariables(const lldb_private::ConstString &name,
113                       const lldb_private::CompilerDeclContext *parent_decl_ctx,
114                       uint32_t max_matches,
115                       lldb_private::VariableList &variables) override;
116 
117   uint32_t FindGlobalVariables(const lldb_private::RegularExpression &regex,
118                                uint32_t max_matches,
119                                lldb_private::VariableList &variables) override;
120 
121   uint32_t
122   FindFunctions(const lldb_private::ConstString &name,
123                 const lldb_private::CompilerDeclContext *parent_decl_ctx,
124                 uint32_t name_type_mask, bool include_inlines, bool append,
125                 lldb_private::SymbolContextList &sc_list) override;
126 
127   uint32_t FindFunctions(const lldb_private::RegularExpression &regex,
128                          bool include_inlines, bool append,
129                          lldb_private::SymbolContextList &sc_list) override;
130 
131   void GetMangledNamesForFunction(
132       const std::string &scope_qualified_name,
133       std::vector<lldb_private::ConstString> &mangled_names) override;
134 
135   uint32_t
136   FindTypes(const lldb_private::SymbolContext &sc,
137             const lldb_private::ConstString &name,
138             const lldb_private::CompilerDeclContext *parent_decl_ctx,
139             bool append, uint32_t max_matches,
140             llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
141             lldb_private::TypeMap &types) override;
142 
143   size_t FindTypes(const std::vector<lldb_private::CompilerContext> &context,
144                    bool append, lldb_private::TypeMap &types) override;
145 
146   void FindTypesByRegex(const lldb_private::RegularExpression &regex,
147                         uint32_t max_matches, lldb_private::TypeMap &types);
148 
149   lldb_private::TypeList *GetTypeList() override;
150 
151   size_t GetTypes(lldb_private::SymbolContextScope *sc_scope,
152                   uint32_t type_mask,
153                   lldb_private::TypeList &type_list) override;
154 
155   lldb_private::TypeSystem *
156   GetTypeSystemForLanguage(lldb::LanguageType language) override;
157 
158   lldb_private::CompilerDeclContext FindNamespace(
159       const lldb_private::SymbolContext &sc,
160       const lldb_private::ConstString &name,
161       const lldb_private::CompilerDeclContext *parent_decl_ctx) override;
162 
163   lldb_private::ConstString GetPluginName() override;
164 
165   uint32_t GetPluginVersion() override;
166 
167   llvm::pdb::IPDBSession &GetPDBSession();
168 
169   const llvm::pdb::IPDBSession &GetPDBSession() const;
170 
171 private:
172   lldb::CompUnitSP ParseCompileUnitForUID(uint32_t id,
173                                           uint32_t index = UINT32_MAX);
174 
175   bool ParseCompileUnitLineTable(const lldb_private::SymbolContext &sc,
176                                  uint32_t match_line);
177 
178   void BuildSupportFileIdToSupportFileIndexMap(
179       const llvm::pdb::PDBSymbolCompiland &pdb_compiland,
180       llvm::DenseMap<uint32_t, uint32_t> &index_map) const;
181 
182   void FindTypesByName(const std::string &name, uint32_t max_matches,
183                        lldb_private::TypeMap &types);
184 
185   std::string GetMangledForPDBData(const llvm::pdb::PDBSymbolData &pdb_data);
186 
187   lldb::VariableSP
188   ParseVariableForPDBData(const lldb_private::SymbolContext &sc,
189                           const llvm::pdb::PDBSymbolData &pdb_data);
190 
191   size_t ParseVariables(const lldb_private::SymbolContext &sc,
192                         const llvm::pdb::PDBSymbol &pdb_data,
193                         lldb_private::VariableList *variable_list = nullptr);
194 
195   lldb::CompUnitSP
196   GetCompileUnitContainsAddress(const lldb_private::Address &so_addr);
197 
198   typedef std::vector<lldb_private::Type *> TypeCollection;
199 
200   void GetTypesForPDBSymbol(const llvm::pdb::PDBSymbol &pdb_symbol,
201                             uint32_t type_mask,
202                             TypeCollection &type_collection);
203 
204   lldb_private::Function *
205   ParseCompileUnitFunctionForPDBFunc(const llvm::pdb::PDBSymbolFunc &pdb_func,
206                                      const lldb_private::SymbolContext &sc);
207 
208   void GetCompileUnitIndex(const llvm::pdb::PDBSymbolCompiland &pdb_compiland,
209                            uint32_t &index);
210 
211   std::unique_ptr<llvm::pdb::PDBSymbolCompiland>
212   GetPDBCompilandByUID(uint32_t uid);
213 
214   lldb_private::Mangled
215   GetMangledForPDBFunc(const llvm::pdb::PDBSymbolFunc &pdb_func);
216 
217   bool ResolveFunction(const llvm::pdb::PDBSymbolFunc &pdb_func,
218                        bool include_inlines,
219                        lldb_private::SymbolContextList &sc_list);
220 
221   bool ResolveFunction(uint32_t uid, bool include_inlines,
222                        lldb_private::SymbolContextList &sc_list);
223 
224   void CacheFunctionNames();
225 
226   bool DeclContextMatchesThisSymbolFile(
227       const lldb_private::CompilerDeclContext *decl_ctx);
228 
229   llvm::DenseMap<uint32_t, lldb::CompUnitSP> m_comp_units;
230   llvm::DenseMap<uint32_t, lldb::TypeSP> m_types;
231   llvm::DenseMap<uint32_t, lldb::VariableSP> m_variables;
232 
233   std::vector<lldb::TypeSP> m_builtin_types;
234   std::unique_ptr<llvm::pdb::IPDBSession> m_session_up;
235   std::unique_ptr<llvm::pdb::PDBSymbolExe> m_global_scope_up;
236   uint32_t m_cached_compile_unit_count;
237   std::unique_ptr<lldb_private::CompilerDeclContext> m_tu_decl_ctx_up;
238 
239   lldb_private::UniqueCStringMap<uint32_t> m_func_full_names;
240   lldb_private::UniqueCStringMap<uint32_t> m_func_base_names;
241   lldb_private::UniqueCStringMap<uint32_t> m_func_method_names;
242 };
243 
244 #endif // lldb_Plugins_SymbolFile_PDB_SymbolFilePDB_h_
245