contrib/llvm-project/lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h

   1 //===-- ItaniumABILanguageRuntime.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 liblldb_ItaniumABILanguageRuntime_h_
  10 #define liblldb_ItaniumABILanguageRuntime_h_
  11
  12 #include <map>
  13 #include <mutex>
  14 #include <vector>
  15
  16 #include "lldb/Breakpoint/BreakpointResolver.h"
  17 #include "lldb/Core/Value.h"
  18 #include "lldb/Symbol/Type.h"
  19 #include "lldb/Target/LanguageRuntime.h"
  20 #include "lldb/lldb-private.h"
  21
  22 #include "Plugins/LanguageRuntime/CPlusPlus/CPPLanguageRuntime.h"
  23
  24 namespace lldb_private {
  25
  26 class ItaniumABILanguageRuntime : public lldb_private::CPPLanguageRuntime {
  27 public:
  28   ~ItaniumABILanguageRuntime() override = default;
  29
  30   // Static Functions
  31   static void Initialize();
  32
  33   static void Terminate();
  34
  35   static lldb_private::LanguageRuntime *
  36   CreateInstance(Process *process, lldb::LanguageType language);
  37
  38   static lldb_private::ConstString GetPluginNameStatic();
  39
  40   static char ID;
  41
  42   bool isA(const void *ClassID) const override {
  43     return ClassID == &ID || CPPLanguageRuntime::isA(ClassID);
  44   }
  45
  46   static bool classof(const LanguageRuntime *runtime) {
  47     return runtime->isA(&ID);
  48   }
  49
  50   bool GetDynamicTypeAndAddress(ValueObject &in_value,
  51                                 lldb::DynamicValueType use_dynamic,
  52                                 TypeAndOrName &class_type_or_name,
  53                                 Address &address,
  54                                 Value::ValueType &value_type) override;
  55
  56   TypeAndOrName FixUpDynamicType(const TypeAndOrName &type_and_or_name,
  57                                  ValueObject &static_value) override;
  58
  59   bool CouldHaveDynamicValue(ValueObject &in_value) override;
  60
  61   void SetExceptionBreakpoints() override;
  62
  63   void ClearExceptionBreakpoints() override;
  64
  65   bool ExceptionBreakpointsAreSet() override;
  66
  67   bool ExceptionBreakpointsExplainStop(lldb::StopInfoSP stop_reason) override;
  68
  69   lldb::BreakpointResolverSP CreateExceptionResolver(Breakpoint *bkpt,
  70                                                      bool catch_bp,
  71                                                      bool throw_bp) override;
  72
  73   lldb::SearchFilterSP CreateExceptionSearchFilter() override;
  74
  75   lldb::ValueObjectSP GetExceptionObjectForThread(
  76       lldb::ThreadSP thread_sp) override;
  77
  78   // PluginInterface protocol
  79   lldb_private::ConstString GetPluginName() override;
  80
  81   uint32_t GetPluginVersion() override;
  82
  83 protected:
  84   lldb::BreakpointResolverSP CreateExceptionResolver(Breakpoint *bkpt,
  85                                                      bool catch_bp,
  86                                                      bool throw_bp,
  87                                                      bool for_expressions);
  88
  89   lldb::BreakpointSP CreateExceptionBreakpoint(bool catch_bp, bool throw_bp,
  90                                                bool for_expressions,
  91                                                bool is_internal);
  92
  93 private:
  94   typedef std::map<lldb_private::Address, TypeAndOrName> DynamicTypeCache;
  95
  96   ItaniumABILanguageRuntime(Process *process)
  97       : // Call CreateInstance instead.
  98         lldb_private::CPPLanguageRuntime(process), m_cxx_exception_bp_sp(),
  99         m_dynamic_type_map(), m_dynamic_type_map_mutex() {}
 100
 101   lldb::BreakpointSP m_cxx_exception_bp_sp;
 102   DynamicTypeCache m_dynamic_type_map;
 103   std::mutex m_dynamic_type_map_mutex;
 104
 105   TypeAndOrName GetTypeInfoFromVTableAddress(ValueObject &in_value,
 106                                              lldb::addr_t original_ptr,
 107                                              lldb::addr_t vtable_addr);
 108
 109   TypeAndOrName GetDynamicTypeInfo(const lldb_private::Address &vtable_addr);
 110
 111   void SetDynamicTypeInfo(const lldb_private::Address &vtable_addr,
 112                           const TypeAndOrName &type_info);
 113 };
 114
 115 } // namespace lldb_private
 116
 117 #endif // liblldb_ItaniumABILanguageRuntime_h_