aboutsummaryrefslogtreecommitdiff
path: root/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV1.h
blob: 9f9fcc69b682b6b817b71040b40611eb5bcec22d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
//===-- AppleObjCRuntimeV1.h ------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef liblldb_AppleObjCRuntimeV1_h_
#define liblldb_AppleObjCRuntimeV1_h_

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/lldb-private.h"
#include "lldb/Target/ObjCLanguageRuntime.h"
#include "AppleObjCRuntime.h"

namespace lldb_private {
    
class AppleObjCRuntimeV1 :
        public AppleObjCRuntime
{
public:
    ~AppleObjCRuntimeV1() override = default;

    //------------------------------------------------------------------
    // Static Functions
    //------------------------------------------------------------------
    static void
    Initialize();
    
    static void
    Terminate();
    
    static lldb_private::LanguageRuntime *
    CreateInstance(Process *process, lldb::LanguageType language);
    
    static lldb_private::ConstString
    GetPluginNameStatic();

    static bool classof(const ObjCLanguageRuntime* runtime)
    {
        switch (runtime->GetRuntimeVersion())
        {
            case ObjCRuntimeVersions::eAppleObjC_V1:
                return true;
            default:
                return false;
        }
    }
    
    class ClassDescriptorV1 : public ObjCLanguageRuntime::ClassDescriptor
    {
    public:
        ClassDescriptorV1 (ValueObject &isa_pointer);
        ClassDescriptorV1 (ObjCISA isa, lldb::ProcessSP process_sp);
        
        ~ClassDescriptorV1() override = default;

        ConstString
        GetClassName() override
        {
            return m_name;
        }
        
        ClassDescriptorSP
        GetSuperclass() override;
        
        ClassDescriptorSP
        GetMetaclass() const override;
        
        bool
        IsValid() override
        {
            return m_valid;
        }
        
        // v1 does not support tagged pointers
        bool
        GetTaggedPointerInfo(uint64_t* info_bits = nullptr,
                             uint64_t* value_bits = nullptr,
                             uint64_t* payload = nullptr) override
        {
            return false;
        }
        
        uint64_t
        GetInstanceSize() override
        {
            return m_instance_size;
        }
        
        ObjCISA
        GetISA() override
        {
            return m_isa;
        }
        
        bool
        Describe(std::function <void (ObjCLanguageRuntime::ObjCISA)> const &superclass_func,
                 std::function <bool (const char *, const char *)> const &instance_method_func,
                 std::function <bool (const char *, const char *)> const &class_method_func,
                 std::function <bool (const char *, const char *,
                 lldb::addr_t, uint64_t)> const &ivar_func) const override;

    protected:
        void
        Initialize (ObjCISA isa, lldb::ProcessSP process_sp);
        
    private:
        ConstString m_name;
        ObjCISA m_isa;
        ObjCISA m_parent_isa;
        bool m_valid;
        lldb::ProcessWP m_process_wp;
        uint64_t m_instance_size;
    };

    // These are generic runtime functions:
    bool
    GetDynamicTypeAndAddress(ValueObject &in_value, 
                             lldb::DynamicValueType use_dynamic, 
                             TypeAndOrName &class_type_or_name, 
                             Address &address,
                             Value::ValueType &value_type) override;

    UtilityFunction *
    CreateObjectChecker(const char *) override;

    //------------------------------------------------------------------
    // PluginInterface protocol
    //------------------------------------------------------------------
    ConstString
    GetPluginName() override;
    
    uint32_t
    GetPluginVersion() override;
    
    ObjCRuntimeVersions
    GetRuntimeVersion() const override
    {
        return ObjCRuntimeVersions::eAppleObjC_V1;
    }
    
    void
    UpdateISAToDescriptorMapIfNeeded() override;
    
    DeclVendor *
    GetDeclVendor() override;

protected:
    lldb::BreakpointResolverSP
    CreateExceptionResolver(Breakpoint *bkpt, bool catch_bp, bool throw_bp) override;
    
    class HashTableSignature
    {
    public:
        HashTableSignature () :
            m_count (0),
            m_num_buckets (0),
            m_buckets_ptr (LLDB_INVALID_ADDRESS)
        {
        }
        
        bool
        NeedsUpdate (uint32_t count,
                     uint32_t num_buckets,
                     lldb::addr_t buckets_ptr)
        {
            return m_count       != count       ||
                   m_num_buckets != num_buckets ||
                   m_buckets_ptr != buckets_ptr ;
        }
        
        void
        UpdateSignature (uint32_t count,
                         uint32_t num_buckets,
                         lldb::addr_t buckets_ptr)
        {
            m_count = count;
            m_num_buckets = num_buckets;
            m_buckets_ptr = buckets_ptr;
        }

    protected:
        uint32_t m_count;
        uint32_t m_num_buckets;
        lldb::addr_t m_buckets_ptr;
    };
    
    lldb::addr_t
    GetISAHashTablePointer ();
    
    HashTableSignature m_hash_signature;
    lldb::addr_t m_isa_hash_table_ptr;
    std::unique_ptr<DeclVendor> m_decl_vendor_ap;

private:
    AppleObjCRuntimeV1(Process *process);
};
    
} // namespace lldb_private

#endif // liblldb_AppleObjCRuntimeV1_h_