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1 //===-- SymbolFilePDB.h -------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_PDB_SYMBOLFILEPDB_H
10 #define LLDB_SOURCE_PLUGINS_SYMBOLFILE_PDB_SYMBOLFILEPDB_H
11 
12 #include "lldb/Core/UniqueCStringMap.h"
13 #include "lldb/Symbol/SymbolFile.h"
14 #include "lldb/Symbol/VariableList.h"
15 #include "lldb/Utility/UserID.h"
16 
17 #include "llvm/ADT/DenseMap.h"
18 #include "llvm/DebugInfo/PDB/IPDBSession.h"
19 #include "llvm/DebugInfo/PDB/PDB.h"
20 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
21 
22 class PDBASTParser;
23 
24 class SymbolFilePDB : public lldb_private::SymbolFile {
25   /// LLVM RTTI support.
26   static char ID;
27 
28 public:
29   /// LLVM RTTI support.
30   /// \{
isA(const void * ClassID)31   bool isA(const void *ClassID) const override {
32     return ClassID == &ID || SymbolFile::isA(ClassID);
33   }
classof(const SymbolFile * obj)34   static bool classof(const SymbolFile *obj) { return obj->isA(&ID); }
35   /// \}
36 
37   // Static Functions
38   static void Initialize();
39 
40   static void Terminate();
41 
42   static void DebuggerInitialize(lldb_private::Debugger &debugger);
43 
44   static lldb_private::ConstString GetPluginNameStatic();
45 
46   static const char *GetPluginDescriptionStatic();
47 
48   static lldb_private::SymbolFile *
49   CreateInstance(lldb::ObjectFileSP objfile_sp);
50 
51   // Constructors and Destructors
52   SymbolFilePDB(lldb::ObjectFileSP objfile_sp);
53 
54   ~SymbolFilePDB() override;
55 
56   uint32_t CalculateAbilities() override;
57 
58   void InitializeObject() override;
59 
60   // Compile Unit function calls
61 
62   lldb::LanguageType
63   ParseLanguage(lldb_private::CompileUnit &comp_unit) override;
64 
65   size_t ParseFunctions(lldb_private::CompileUnit &comp_unit) override;
66 
67   bool ParseLineTable(lldb_private::CompileUnit &comp_unit) override;
68 
69   bool ParseDebugMacros(lldb_private::CompileUnit &comp_unit) override;
70 
71   bool ParseSupportFiles(lldb_private::CompileUnit &comp_unit,
72                          lldb_private::FileSpecList &support_files) override;
73 
74   size_t ParseTypes(lldb_private::CompileUnit &comp_unit) override;
75 
76   bool ParseImportedModules(
77       const lldb_private::SymbolContext &sc,
78       std::vector<lldb_private::SourceModule> &imported_modules) override;
79 
80   size_t ParseBlocksRecursive(lldb_private::Function &func) override;
81 
82   size_t
83   ParseVariablesForContext(const lldb_private::SymbolContext &sc) override;
84 
85   lldb_private::Type *ResolveTypeUID(lldb::user_id_t type_uid) override;
86   llvm::Optional<ArrayInfo> GetDynamicArrayInfoForUID(
87       lldb::user_id_t type_uid,
88       const lldb_private::ExecutionContext *exe_ctx) override;
89 
90   bool CompleteType(lldb_private::CompilerType &compiler_type) override;
91 
92   lldb_private::CompilerDecl GetDeclForUID(lldb::user_id_t uid) override;
93 
94   lldb_private::CompilerDeclContext
95   GetDeclContextForUID(lldb::user_id_t uid) override;
96 
97   lldb_private::CompilerDeclContext
98   GetDeclContextContainingUID(lldb::user_id_t uid) override;
99 
100   void
101   ParseDeclsForContext(lldb_private::CompilerDeclContext decl_ctx) override;
102 
103   uint32_t ResolveSymbolContext(const lldb_private::Address &so_addr,
104                                 lldb::SymbolContextItem resolve_scope,
105                                 lldb_private::SymbolContext &sc) override;
106 
107   uint32_t
108   ResolveSymbolContext(const lldb_private::FileSpec &file_spec, uint32_t line,
109                        bool check_inlines,
110                        lldb::SymbolContextItem resolve_scope,
111                        lldb_private::SymbolContextList &sc_list) override;
112 
113   void
114   FindGlobalVariables(lldb_private::ConstString name,
115                       const lldb_private::CompilerDeclContext &parent_decl_ctx,
116                       uint32_t max_matches,
117                       lldb_private::VariableList &variables) override;
118 
119   void FindGlobalVariables(const lldb_private::RegularExpression &regex,
120                            uint32_t max_matches,
121                            lldb_private::VariableList &variables) override;
122 
123   void FindFunctions(lldb_private::ConstString name,
124                      const lldb_private::CompilerDeclContext &parent_decl_ctx,
125                      lldb::FunctionNameType name_type_mask,
126                      bool include_inlines,
127                      lldb_private::SymbolContextList &sc_list) override;
128 
129   void FindFunctions(const lldb_private::RegularExpression &regex,
130                      bool include_inlines,
131                      lldb_private::SymbolContextList &sc_list) override;
132 
133   void GetMangledNamesForFunction(
134       const std::string &scope_qualified_name,
135       std::vector<lldb_private::ConstString> &mangled_names) override;
136 
137   void AddSymbols(lldb_private::Symtab &symtab) override;
138 
139   void
140   FindTypes(lldb_private::ConstString name,
141             const lldb_private::CompilerDeclContext &parent_decl_ctx,
142             uint32_t max_matches,
143             llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
144             lldb_private::TypeMap &types) override;
145 
146   void FindTypes(llvm::ArrayRef<lldb_private::CompilerContext> pattern,
147                  lldb_private::LanguageSet languages,
148                  llvm::DenseSet<SymbolFile *> &searched_symbol_files,
149                  lldb_private::TypeMap &types) override;
150 
151   void FindTypesByRegex(const lldb_private::RegularExpression &regex,
152                         uint32_t max_matches, lldb_private::TypeMap &types);
153 
154   void GetTypes(lldb_private::SymbolContextScope *sc_scope,
155                 lldb::TypeClass type_mask,
156                 lldb_private::TypeList &type_list) override;
157 
158   llvm::Expected<lldb_private::TypeSystem &>
159   GetTypeSystemForLanguage(lldb::LanguageType language) override;
160 
161   lldb_private::CompilerDeclContext FindNamespace(
162       lldb_private::ConstString name,
163       const lldb_private::CompilerDeclContext &parent_decl_ctx) override;
164 
165   lldb_private::ConstString GetPluginName() override;
166 
167   uint32_t GetPluginVersion() override;
168 
169   llvm::pdb::IPDBSession &GetPDBSession();
170 
171   const llvm::pdb::IPDBSession &GetPDBSession() const;
172 
173   void DumpClangAST(lldb_private::Stream &s) override;
174 
175 private:
176   struct SecContribInfo {
177     uint32_t Offset;
178     uint32_t Size;
179     uint32_t CompilandId;
180   };
181   using SecContribsMap = std::map<uint32_t, std::vector<SecContribInfo>>;
182 
183   uint32_t CalculateNumCompileUnits() override;
184 
185   lldb::CompUnitSP ParseCompileUnitAtIndex(uint32_t index) override;
186 
187   lldb::CompUnitSP ParseCompileUnitForUID(uint32_t id,
188                                           uint32_t index = UINT32_MAX);
189 
190   bool ParseCompileUnitLineTable(lldb_private::CompileUnit &comp_unit,
191                                  uint32_t match_line);
192 
193   void BuildSupportFileIdToSupportFileIndexMap(
194       const llvm::pdb::PDBSymbolCompiland &pdb_compiland,
195       llvm::DenseMap<uint32_t, uint32_t> &index_map) const;
196 
197   void FindTypesByName(llvm::StringRef name,
198                        const lldb_private::CompilerDeclContext &parent_decl_ctx,
199                        uint32_t max_matches, lldb_private::TypeMap &types);
200 
201   std::string GetMangledForPDBData(const llvm::pdb::PDBSymbolData &pdb_data);
202 
203   lldb::VariableSP
204   ParseVariableForPDBData(const lldb_private::SymbolContext &sc,
205                           const llvm::pdb::PDBSymbolData &pdb_data);
206 
207   size_t ParseVariables(const lldb_private::SymbolContext &sc,
208                         const llvm::pdb::PDBSymbol &pdb_data,
209                         lldb_private::VariableList *variable_list = nullptr);
210 
211   lldb::CompUnitSP
212   GetCompileUnitContainsAddress(const lldb_private::Address &so_addr);
213 
214   typedef std::vector<lldb_private::Type *> TypeCollection;
215 
216   void GetTypesForPDBSymbol(const llvm::pdb::PDBSymbol &pdb_symbol,
217                             uint32_t type_mask,
218                             TypeCollection &type_collection);
219 
220   lldb_private::Function *
221   ParseCompileUnitFunctionForPDBFunc(const llvm::pdb::PDBSymbolFunc &pdb_func,
222                                      lldb_private::CompileUnit &comp_unit);
223 
224   void GetCompileUnitIndex(const llvm::pdb::PDBSymbolCompiland &pdb_compiland,
225                            uint32_t &index);
226 
227   PDBASTParser *GetPDBAstParser();
228 
229   std::unique_ptr<llvm::pdb::PDBSymbolCompiland>
230   GetPDBCompilandByUID(uint32_t uid);
231 
232   lldb_private::Mangled
233   GetMangledForPDBFunc(const llvm::pdb::PDBSymbolFunc &pdb_func);
234 
235   bool ResolveFunction(const llvm::pdb::PDBSymbolFunc &pdb_func,
236                        bool include_inlines,
237                        lldb_private::SymbolContextList &sc_list);
238 
239   bool ResolveFunction(uint32_t uid, bool include_inlines,
240                        lldb_private::SymbolContextList &sc_list);
241 
242   void CacheFunctionNames();
243 
244   bool DeclContextMatchesThisSymbolFile(
245       const lldb_private::CompilerDeclContext &decl_ctx);
246 
247   uint32_t GetCompilandId(const llvm::pdb::PDBSymbolData &data);
248 
249   llvm::DenseMap<uint32_t, lldb::CompUnitSP> m_comp_units;
250   llvm::DenseMap<uint32_t, lldb::TypeSP> m_types;
251   llvm::DenseMap<uint32_t, lldb::VariableSP> m_variables;
252   llvm::DenseMap<uint64_t, std::string> m_public_names;
253 
254   SecContribsMap m_sec_contribs;
255 
256   std::vector<lldb::TypeSP> m_builtin_types;
257   std::unique_ptr<llvm::pdb::IPDBSession> m_session_up;
258   std::unique_ptr<llvm::pdb::PDBSymbolExe> m_global_scope_up;
259 
260   lldb_private::UniqueCStringMap<uint32_t> m_func_full_names;
261   lldb_private::UniqueCStringMap<uint32_t> m_func_base_names;
262   lldb_private::UniqueCStringMap<uint32_t> m_func_method_names;
263 };
264 
265 #endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_PDB_SYMBOLFILEPDB_H
266