1 //===-- SBSymbol.cpp --------------------------------------------*- 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 #include "lldb/API/SBSymbol.h"
11 #include "lldb/API/SBStream.h"
12 #include "lldb/Core/Disassembler.h"
13 #include "lldb/Core/Log.h"
14 #include "lldb/Core/Module.h"
15 #include "lldb/Symbol/Symbol.h"
16 #include "lldb/Target/ExecutionContext.h"
17 #include "lldb/Target/Target.h"
18 
19 using namespace lldb;
20 using namespace lldb_private;
21 
22 SBSymbol::SBSymbol () :
23     m_opaque_ptr (NULL)
24 {
25 }
26 
27 SBSymbol::SBSymbol (lldb_private::Symbol *lldb_object_ptr) :
28     m_opaque_ptr (lldb_object_ptr)
29 {
30 }
31 
32 SBSymbol::SBSymbol (const lldb::SBSymbol &rhs) :
33     m_opaque_ptr (rhs.m_opaque_ptr)
34 {
35 }
36 
37 const SBSymbol &
38 SBSymbol::operator = (const SBSymbol &rhs)
39 {
40     m_opaque_ptr = rhs.m_opaque_ptr;
41     return *this;
42 }
43 
44 SBSymbol::~SBSymbol ()
45 {
46     m_opaque_ptr = NULL;
47 }
48 
49 void
50 SBSymbol::SetSymbol (lldb_private::Symbol *lldb_object_ptr)
51 {
52     m_opaque_ptr = lldb_object_ptr;
53 }
54 
55 bool
56 SBSymbol::IsValid () const
57 {
58     return m_opaque_ptr != NULL;
59 }
60 
61 const char *
62 SBSymbol::GetName() const
63 {
64     const char *name = NULL;
65     if (m_opaque_ptr)
66         name = m_opaque_ptr->GetMangled().GetName().AsCString();
67 
68     LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
69     if (log)
70         log->Printf ("SBSymbol(%p)::GetName () => \"%s\"", m_opaque_ptr, name ? name : "");
71     return name;
72 }
73 
74 const char *
75 SBSymbol::GetMangledName () const
76 {
77     const char *name = NULL;
78     if (m_opaque_ptr)
79         name = m_opaque_ptr->GetMangled().GetMangledName().AsCString();
80     LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
81     if (log)
82         log->Printf ("SBSymbol(%p)::GetMangledName () => \"%s\"", m_opaque_ptr, name ? name : "");
83 
84     return name;
85 }
86 
87 
88 bool
89 SBSymbol::operator == (const SBSymbol &rhs) const
90 {
91     return m_opaque_ptr == rhs.m_opaque_ptr;
92 }
93 
94 bool
95 SBSymbol::operator != (const SBSymbol &rhs) const
96 {
97     return m_opaque_ptr != rhs.m_opaque_ptr;
98 }
99 
100 bool
101 SBSymbol::GetDescription (SBStream &description)
102 {
103     Stream &strm = description.ref();
104 
105     if (m_opaque_ptr)
106     {
107         m_opaque_ptr->GetDescription (&strm,
108                                       lldb::eDescriptionLevelFull, NULL);
109     }
110     else
111         strm.PutCString ("No value");
112 
113     return true;
114 }
115 
116 
117 
118 SBInstructionList
119 SBSymbol::GetInstructions (SBTarget target)
120 {
121     SBInstructionList sb_instructions;
122     if (m_opaque_ptr)
123     {
124         Mutex::Locker api_locker;
125         ExecutionContext exe_ctx;
126         if (target.IsValid())
127         {
128             api_locker.Reset (target->GetAPIMutex().GetMutex());
129             target->CalculateExecutionContext (exe_ctx);
130         }
131         const AddressRange *symbol_range = m_opaque_ptr->GetAddressRangePtr();
132         if (symbol_range)
133         {
134             Module *module = symbol_range->GetBaseAddress().GetModule();
135             if (module)
136             {
137                 sb_instructions.SetDisassembler (Disassembler::DisassembleRange (module->GetArchitecture (),
138                                                                                  NULL,
139                                                                                  exe_ctx,
140                                                                                  *symbol_range));
141             }
142         }
143     }
144     return sb_instructions;
145 }
146 
147 lldb_private::Symbol *
148 SBSymbol::get ()
149 {
150     return m_opaque_ptr;
151 }
152 
153 void
154 SBSymbol::reset (lldb_private::Symbol *symbol)
155 {
156     m_opaque_ptr = symbol;
157 }
158 
159 SBAddress
160 SBSymbol::GetStartAddress ()
161 {
162     SBAddress addr;
163     if (m_opaque_ptr)
164     {
165         // Make sure the symbol is an address based symbol first:
166         AddressRange *symbol_arange_ptr = m_opaque_ptr->GetAddressRangePtr();
167         if (symbol_arange_ptr)
168         {
169             addr.SetAddress (&symbol_arange_ptr->GetBaseAddress());
170         }
171     }
172     return addr;
173 }
174 
175 SBAddress
176 SBSymbol::GetEndAddress ()
177 {
178     SBAddress addr;
179     if (m_opaque_ptr)
180     {
181         AddressRange *symbol_arange_ptr = m_opaque_ptr->GetAddressRangePtr();
182         if (symbol_arange_ptr)
183         {
184             addr_t byte_size = symbol_arange_ptr->GetByteSize();
185             if (byte_size > 0)
186             {
187                 addr.SetAddress (&symbol_arange_ptr->GetBaseAddress());
188                 addr->Slide (byte_size);
189             }
190         }
191     }
192     return addr;
193 }
194 
195 uint32_t
196 SBSymbol::GetPrologueByteSize ()
197 {
198     if (m_opaque_ptr)
199         return m_opaque_ptr->GetPrologueByteSize();
200     return 0;
201 }
202 
203 SymbolType
204 SBSymbol::GetType ()
205 {
206     if (m_opaque_ptr)
207         return m_opaque_ptr->GetType();
208     return eSymbolTypeInvalid;
209 }
210