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 LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_CPLUSPLUS_ITANIUMABI_ITANIUMABILANGUAGERUNTIME_H
10#define LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_CPLUSPLUS_ITANIUMABI_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
24namespace lldb_private {
25
26class ItaniumABILanguageRuntime : public lldb_private::CPPLanguageRuntime {
27public:
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 llvm::StringRef GetPluginNameStatic() { return "itanium"; }
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(ClassID: &ID);
48 }
49
50
51 llvm::Expected<LanguageRuntime::VTableInfo>
52 GetVTableInfo(ValueObject &in_value, bool check_type) override;
53
54 bool GetDynamicTypeAndAddress(ValueObject &in_value,
55 lldb::DynamicValueType use_dynamic,
56 TypeAndOrName &class_type_or_name,
57 Address &address, Value::ValueType &value_type,
58 llvm::ArrayRef<uint8_t> &local_buffer) override;
59
60 TypeAndOrName FixUpDynamicType(const TypeAndOrName &type_and_or_name,
61 ValueObject &static_value) override;
62
63 bool CouldHaveDynamicValue(ValueObject &in_value) override;
64
65 void SetExceptionBreakpoints() override;
66
67 void ClearExceptionBreakpoints() override;
68
69 bool ExceptionBreakpointsAreSet() override;
70
71 bool ExceptionBreakpointsExplainStop(lldb::StopInfoSP stop_reason) override;
72
73 lldb::BreakpointResolverSP
74 CreateExceptionResolver(const lldb::BreakpointSP &bkpt,
75 bool catch_bp, bool throw_bp) override;
76
77 lldb::SearchFilterSP CreateExceptionSearchFilter() override;
78
79 lldb::ValueObjectSP GetExceptionObjectForThread(
80 lldb::ThreadSP thread_sp) override;
81
82 // PluginInterface protocol
83 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
84
85protected:
86 lldb::BreakpointResolverSP
87 CreateExceptionResolver(const lldb::BreakpointSP &bkpt,
88 bool catch_bp, bool throw_bp, bool for_expressions);
89
90 lldb::BreakpointSP CreateExceptionBreakpoint(bool catch_bp, bool throw_bp,
91 bool for_expressions,
92 bool is_internal);
93
94private:
95 typedef std::map<lldb_private::Address, TypeAndOrName> DynamicTypeCache;
96 typedef std::map<lldb_private::Address, VTableInfo> VTableInfoCache;
97
98 ItaniumABILanguageRuntime(Process *process)
99 : // Call CreateInstance instead.
100 lldb_private::CPPLanguageRuntime(process) {}
101
102 lldb::BreakpointSP m_cxx_exception_bp_sp;
103 DynamicTypeCache m_dynamic_type_map;
104 VTableInfoCache m_vtable_info_map;
105 std::mutex m_mutex;
106
107 TypeAndOrName GetTypeInfo(ValueObject &in_value,
108 const VTableInfo &vtable_info);
109
110 TypeAndOrName GetDynamicTypeInfo(const lldb_private::Address &vtable_addr);
111
112 void SetDynamicTypeInfo(const lldb_private::Address &vtable_addr,
113 const TypeAndOrName &type_info);
114
115 // Check if a compiler type has a vtable.
116 //
117 // If the compiler type is a pointer or a reference, this function will check
118 // if the pointee type has a vtable, else it will check the type passed in.
119 //
120 // Returns an error if the type of the value doesn't have a vtable with an
121 // explanation why, or returns an Error::success() if the type has a vtable.
122 llvm::Error TypeHasVTable(CompilerType compiler_type);
123};
124
125} // namespace lldb_private
126
127#endif // LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_CPLUSPLUS_ITANIUMABI_ITANIUMABILANGUAGERUNTIME_H
128

source code of lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.h