1 //===-- ObjectContainerBSDArchive.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_ObjectContainerBSDArchive_h_ 11 #define liblldb_ObjectContainerBSDArchive_h_ 12 13 #include "lldb/Symbol/ObjectContainer.h" 14 15 #include "lldb/Core/ArchSpec.h" 16 #include "lldb/Core/ConstString.h" 17 #include "lldb/Host/FileSpec.h" 18 #include "lldb/Core/UniqueCStringMap.h" 19 #include "lldb/Host/TimeValue.h" 20 21 class ObjectContainerBSDArchive : 22 public lldb_private::ObjectContainer 23 { 24 public: 25 26 //------------------------------------------------------------------ 27 // Static Functions 28 //------------------------------------------------------------------ 29 static void 30 Initialize(); 31 32 static void 33 Terminate(); 34 35 static lldb_private::ConstString 36 GetPluginNameStatic(); 37 38 static const char * 39 GetPluginDescriptionStatic(); 40 41 static lldb_private::ObjectContainer * 42 CreateInstance (const lldb::ModuleSP &module_sp, 43 lldb::DataBufferSP& data_sp, 44 lldb::offset_t data_offset, 45 const lldb_private::FileSpec *file, 46 lldb::offset_t offset, 47 lldb::offset_t length); 48 49 static size_t 50 GetModuleSpecifications (const lldb_private::FileSpec& file, 51 lldb::DataBufferSP& data_sp, 52 lldb::offset_t data_offset, 53 lldb::offset_t file_offset, 54 lldb::offset_t length, 55 lldb_private::ModuleSpecList &specs); 56 57 static bool 58 MagicBytesMatch (const lldb_private::DataExtractor &data); 59 60 //------------------------------------------------------------------ 61 // Member Functions 62 //------------------------------------------------------------------ 63 ObjectContainerBSDArchive (const lldb::ModuleSP &module_sp, 64 lldb::DataBufferSP& data_sp, 65 lldb::offset_t data_offset, 66 const lldb_private::FileSpec *file, 67 lldb::offset_t offset, 68 lldb::offset_t length); 69 70 virtual 71 ~ObjectContainerBSDArchive(); 72 73 virtual bool 74 ParseHeader (); 75 76 virtual size_t 77 GetNumObjects () const 78 { 79 if (m_archive_sp) 80 return m_archive_sp->GetNumObjects(); 81 return 0; 82 } 83 virtual void 84 Dump (lldb_private::Stream *s) const; 85 86 virtual lldb::ObjectFileSP 87 GetObjectFile (const lldb_private::FileSpec *file); 88 89 //------------------------------------------------------------------ 90 // PluginInterface protocol 91 //------------------------------------------------------------------ 92 virtual lldb_private::ConstString 93 GetPluginName(); 94 95 virtual uint32_t 96 GetPluginVersion(); 97 98 protected: 99 100 struct Object 101 { 102 Object(); 103 104 void 105 Clear(); 106 107 lldb::offset_t 108 Extract (const lldb_private::DataExtractor& data, lldb::offset_t offset); 109 110 lldb_private::ConstString ar_name; // name 111 uint32_t ar_date; // modification time 112 uint16_t ar_uid; // user id 113 uint16_t ar_gid; // group id 114 uint16_t ar_mode; // octal file permissions 115 uint32_t ar_size; // size in bytes 116 lldb::offset_t ar_file_offset; // file offset in bytes from the beginning of the file of the object data 117 lldb::offset_t ar_file_size; // length of the object data 118 119 typedef std::vector<Object> collection; 120 typedef collection::iterator iterator; 121 typedef collection::const_iterator const_iterator; 122 }; 123 124 class Archive 125 { 126 public: 127 typedef std::shared_ptr<Archive> shared_ptr; 128 typedef std::multimap<lldb_private::FileSpec, shared_ptr> Map; 129 130 static Map & 131 GetArchiveCache (); 132 133 static lldb_private::Mutex & 134 GetArchiveCacheMutex (); 135 136 static Archive::shared_ptr 137 FindCachedArchive (const lldb_private::FileSpec &file, 138 const lldb_private::ArchSpec &arch, 139 const lldb_private::TimeValue &mod_time, 140 lldb::offset_t file_offset); 141 142 static Archive::shared_ptr 143 ParseAndCacheArchiveForFile (const lldb_private::FileSpec &file, 144 const lldb_private::ArchSpec &arch, 145 const lldb_private::TimeValue &mod_time, 146 lldb::offset_t file_offset, 147 lldb_private::DataExtractor &data); 148 149 Archive (const lldb_private::ArchSpec &arch, 150 const lldb_private::TimeValue &mod_time, 151 lldb::offset_t file_offset, 152 lldb_private::DataExtractor &data); 153 154 ~Archive (); 155 156 size_t 157 GetNumObjects () const 158 { 159 return m_objects.size(); 160 } 161 162 const Object * 163 GetObjectAtIndex (size_t idx) 164 { 165 if (idx < m_objects.size()) 166 return &m_objects[idx]; 167 return NULL; 168 } 169 170 size_t 171 ParseObjects (); 172 173 Object * 174 FindObject (const lldb_private::ConstString &object_name, 175 const lldb_private::TimeValue &object_mod_time); 176 177 lldb::offset_t 178 GetFileOffset () const 179 { 180 return m_file_offset; 181 } 182 183 const lldb_private::TimeValue & 184 GetModificationTime() 185 { 186 return m_time; 187 } 188 189 const lldb_private::ArchSpec & 190 GetArchitecture () const 191 { 192 return m_arch; 193 } 194 195 void 196 SetArchitecture (const lldb_private::ArchSpec &arch) 197 { 198 m_arch = arch; 199 } 200 201 bool 202 HasNoExternalReferences() const; 203 204 lldb_private::DataExtractor & 205 GetData () 206 { 207 return m_data; 208 } 209 210 protected: 211 typedef lldb_private::UniqueCStringMap<uint32_t> ObjectNameToIndexMap; 212 //---------------------------------------------------------------------- 213 // Member Variables 214 //---------------------------------------------------------------------- 215 lldb_private::ArchSpec m_arch; 216 lldb_private::TimeValue m_time; 217 lldb::offset_t m_file_offset; 218 Object::collection m_objects; 219 ObjectNameToIndexMap m_object_name_to_index_map; 220 lldb_private::DataExtractor m_data; ///< The data for this object container so we don't lose data if the .a files gets modified 221 }; 222 223 void 224 SetArchive (Archive::shared_ptr &archive_sp); 225 226 Archive::shared_ptr m_archive_sp; 227 }; 228 229 #endif // liblldb_ObjectContainerBSDArchive_h_ 230
