AppleObjCRuntimeV1.h revision 102b2c2681c9a830afe25bfea35557421905e42c 
1//===-- AppleObjCRuntimeV1.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 liblldb_AppleObjCRuntimeV1_h_
11#define liblldb_AppleObjCRuntimeV1_h_
12
13// C Includes
14// C++ Includes
15// Other libraries and framework includes
16// Project includes
17#include "lldb/lldb-private.h"
18#include "lldb/Target/ObjCLanguageRuntime.h"
19#include "AppleObjCRuntime.h"
20
21namespace lldb_private {
22
23class AppleObjCRuntimeV1 :
24        public AppleObjCRuntime
25{
26public:
27
28    class ClassDescriptorV1 : public ObjCLanguageRuntime::ClassDescriptor
29    {
30    public:
31        ClassDescriptorV1 (ValueObject &isa_pointer);
32        ClassDescriptorV1 (ObjCISA isa, lldb::ProcessSP process_sp);
33
34        virtual ConstString
35        GetClassName ()
36        {
37            return m_name;
38        }
39
40        virtual ClassDescriptorSP
41        GetSuperclass ();
42
43        virtual bool
44        IsValid ()
45        {
46            return m_valid;
47        }
48
49        // v1 does not support tagged pointers
50        virtual bool
51        GetTaggedPointerInfo (uint64_t* info_bits = NULL,
52                              uint64_t* value_bits = NULL)
53        {
54            return false;
55        }
56
57        virtual uint64_t
58        GetInstanceSize ()
59        {
60            return m_instance_size;
61        }
62
63        virtual ObjCISA
64        GetISA ()
65        {
66            return m_isa;
67        }
68
69        virtual bool
70        Describe (std::function <void (ObjCLanguageRuntime::ObjCISA)> const &superclass_func,
71                  std::function <bool (const char *, const char *)> const &instance_method_func,
72                  std::function <bool (const char *, const char *)> const &class_method_func,
73                  std::function <bool (const char *, const char *, lldb::addr_t, uint64_t)> const &ivar_func);
74
75        virtual
76        ~ClassDescriptorV1 ()
77        {}
78
79    protected:
80        void
81        Initialize (ObjCISA isa, lldb::ProcessSP process_sp);
82
83    private:
84        ConstString m_name;
85        ObjCISA m_isa;
86        ObjCISA m_parent_isa;
87        bool m_valid;
88        lldb::ProcessWP m_process_wp;
89        uint64_t m_instance_size;
90    };
91
92    virtual ~AppleObjCRuntimeV1() { }
93
94    // These are generic runtime functions:
95    virtual bool
96    GetDynamicTypeAndAddress (ValueObject &in_value,
97                              lldb::DynamicValueType use_dynamic,
98                              TypeAndOrName &class_type_or_name,
99                              Address &address);
100
101    virtual ClangUtilityFunction *
102    CreateObjectChecker (const char *);
103
104    //------------------------------------------------------------------
105    // Static Functions
106    //------------------------------------------------------------------
107    static void
108    Initialize();
109
110    static void
111    Terminate();
112
113    static lldb_private::LanguageRuntime *
114    CreateInstance (Process *process, lldb::LanguageType language);
115
116    //------------------------------------------------------------------
117    // PluginInterface protocol
118    //------------------------------------------------------------------
119    virtual const char *
120    GetPluginName();
121
122    virtual const char *
123    GetShortPluginName();
124
125    virtual uint32_t
126    GetPluginVersion();
127
128    virtual ObjCRuntimeVersions
129    GetRuntimeVersion ()
130    {
131        return eAppleObjC_V1;
132    }
133
134    virtual void
135    UpdateISAToDescriptorMapIfNeeded();
136
137    virtual TypeVendor *
138    GetTypeVendor();
139
140protected:
141    virtual lldb::BreakpointResolverSP
142    CreateExceptionResolver (Breakpoint *bkpt, bool catch_bp, bool throw_bp);
143
144
145    class HashTableSignature
146    {
147    public:
148        HashTableSignature () :
149            m_count (0),
150            m_num_buckets (0),
151            m_buckets_ptr (LLDB_INVALID_ADDRESS)
152        {
153        }
154
155        bool
156        NeedsUpdate (uint32_t count,
157                     uint32_t num_buckets,
158                     lldb::addr_t buckets_ptr)
159        {
160            return m_count       != count       ||
161                   m_num_buckets != num_buckets ||
162                   m_buckets_ptr != buckets_ptr ;
163        }
164
165        void
166        UpdateSignature (uint32_t count,
167                         uint32_t num_buckets,
168                         lldb::addr_t buckets_ptr)
169        {
170            m_count = count;
171            m_num_buckets = num_buckets;
172            m_buckets_ptr = buckets_ptr;
173        }
174
175    protected:
176        uint32_t m_count;
177        uint32_t m_num_buckets;
178        lldb::addr_t m_buckets_ptr;
179    };
180
181
182    lldb::addr_t
183    GetISAHashTablePointer ();
184
185    HashTableSignature m_hash_signature;
186    lldb::addr_t m_isa_hash_table_ptr;
187    std::unique_ptr<TypeVendor> m_type_vendor_ap;
188private:
189    AppleObjCRuntimeV1(Process *process);
190};
191
192} // namespace lldb_private
193
194#endif  // liblldb_AppleObjCRuntimeV1_h_
195