1 //===-- Section.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_Section_h_ 11 #define liblldb_Section_h_ 12 13 #include "lldb/lldb-private.h" 14 #include "lldb/Core/AddressRange.h" 15 #include "lldb/Core/Flags.h" 16 #include "lldb/Core/ModuleChild.h" 17 #include "lldb/Core/ConstString.h" 18 #include "lldb/Core/RangeMap.h" 19 #include "lldb/Core/UserID.h" 20 #include "lldb/Core/VMRange.h" 21 #include "lldb/Symbol/ObjectFile.h" 22 #include <limits.h> 23 24 namespace lldb_private { 25 26 class SectionList 27 { 28 public: 29 typedef std::vector<lldb::SectionSP> collection; 30 typedef collection::iterator iterator; 31 typedef collection::const_iterator const_iterator; 32 33 SectionList(); 34 35 ~SectionList(); 36 37 SectionList & 38 operator =(const SectionList& rhs); 39 40 size_t 41 AddSection (const lldb::SectionSP& section_sp); 42 43 size_t 44 AddUniqueSection (const lldb::SectionSP& section_sp); 45 46 size_t 47 FindSectionIndex (const Section* sect); 48 49 bool 50 ContainsSection(lldb::user_id_t sect_id) const; 51 52 void 53 Dump (Stream *s, Target *target, bool show_header, uint32_t depth) const; 54 55 lldb::SectionSP 56 FindSectionByName (const ConstString §ion_dstr) const; 57 58 lldb::SectionSP 59 FindSectionByID (lldb::user_id_t sect_id) const; 60 61 lldb::SectionSP 62 FindSectionByType (lldb::SectionType sect_type, bool check_children, size_t start_idx = 0) const; 63 64 lldb::SectionSP 65 FindSectionContainingFileAddress (lldb::addr_t addr, uint32_t depth = UINT32_MAX) const; 66 67 bool 68 GetSectionData (const DataExtractor& module_data, DataExtractor& section_data) const; 69 70 // Get the number of sections in this list only 71 size_t 72 GetSize () const 73 { 74 return m_sections.size(); 75 } 76 77 // Get the number of sections in this list, and any contained child sections 78 size_t 79 GetNumSections (uint32_t depth) const; 80 81 bool 82 ReplaceSection (lldb::user_id_t sect_id, const lldb::SectionSP& section_sp, uint32_t depth = UINT32_MAX); 83 84 // Warning, this can be slow as it's removing items from a std::vector. 85 bool 86 DeleteSection (size_t idx); 87 88 lldb::SectionSP 89 GetSectionAtIndex (size_t idx) const; 90 91 size_t 92 Slide (lldb::addr_t slide_amount, bool slide_children); 93 94 void 95 Clear () 96 { 97 m_sections.clear(); 98 } 99 100 protected: 101 collection m_sections; 102 }; 103 104 105 class Section : 106 public std::enable_shared_from_this<Section>, 107 public ModuleChild, 108 public UserID, 109 public Flags 110 { 111 public: 112 // Create a root section (one that has no parent) 113 Section (const lldb::ModuleSP &module_sp, 114 ObjectFile *obj_file, 115 lldb::user_id_t sect_id, 116 const ConstString &name, 117 lldb::SectionType sect_type, 118 lldb::addr_t file_vm_addr, 119 lldb::addr_t vm_size, 120 lldb::offset_t file_offset, 121 lldb::offset_t file_size, 122 uint32_t flags); 123 124 // Create a section that is a child of parent_section_sp 125 Section (const lldb::SectionSP &parent_section_sp, // NULL for top level sections, non-NULL for child sections 126 const lldb::ModuleSP &module_sp, 127 ObjectFile *obj_file, 128 lldb::user_id_t sect_id, 129 const ConstString &name, 130 lldb::SectionType sect_type, 131 lldb::addr_t file_vm_addr, 132 lldb::addr_t vm_size, 133 lldb::offset_t file_offset, 134 lldb::offset_t file_size, 135 uint32_t flags); 136 137 ~Section (); 138 139 static int 140 Compare (const Section& a, const Section& b); 141 142 bool 143 ContainsFileAddress (lldb::addr_t vm_addr) const; 144 145 SectionList& 146 GetChildren () 147 { 148 return m_children; 149 } 150 151 const SectionList& 152 GetChildren () const 153 { 154 return m_children; 155 } 156 157 void 158 Dump (Stream *s, Target *target, uint32_t depth) const; 159 160 void 161 DumpName (Stream *s) const; 162 163 lldb::addr_t 164 GetLoadBaseAddress (Target *target) const; 165 166 bool 167 ResolveContainedAddress (lldb::addr_t offset, Address &so_addr) const; 168 169 lldb::offset_t 170 GetFileOffset () const 171 { 172 return m_file_offset; 173 } 174 175 void 176 SetFileOffset (lldb::offset_t file_offset) 177 { 178 m_file_offset = file_offset; 179 } 180 181 lldb::offset_t 182 GetFileSize () const 183 { 184 return m_file_size; 185 } 186 187 void 188 SetFileSize (lldb::offset_t file_size) 189 { 190 m_file_size = file_size; 191 } 192 193 lldb::addr_t 194 GetFileAddress () const; 195 196 lldb::addr_t 197 GetOffset () const; 198 199 200 lldb::addr_t 201 GetByteSize () const 202 { 203 return m_byte_size; 204 } 205 206 void 207 SetByteSize (lldb::addr_t byte_size) 208 { 209 m_byte_size = byte_size; 210 } 211 212 bool 213 IsFake() const 214 { 215 return m_fake; 216 } 217 218 void 219 SetIsFake(bool fake) 220 { 221 m_fake = fake; 222 } 223 224 bool 225 IsEncrypted () const 226 { 227 return m_encrypted; 228 } 229 230 void 231 SetIsEncrypted (bool b) 232 { 233 m_encrypted = b; 234 } 235 236 bool 237 IsDescendant (const Section *section); 238 239 const ConstString& 240 GetName () const 241 { 242 return m_name; 243 } 244 245 bool 246 Slide (lldb::addr_t slide_amount, bool slide_children); 247 248 249 lldb::SectionType 250 GetType () const 251 { 252 return m_type; 253 } 254 255 lldb::SectionSP 256 GetParent () const 257 { 258 return m_parent_wp.lock(); 259 } 260 261 bool 262 IsThreadSpecific () const 263 { 264 return m_thread_specific; 265 } 266 267 void 268 SetIsThreadSpecific (bool b) 269 { 270 m_thread_specific = b; 271 } 272 273 ObjectFile * 274 GetObjectFile () 275 { 276 return m_obj_file; 277 } 278 const ObjectFile * 279 GetObjectFile () const 280 { 281 return m_obj_file; 282 } 283 284 285 protected: 286 287 ObjectFile *m_obj_file; // The object file that data for this section should be read from 288 lldb::SectionType m_type; // The type of this section 289 lldb::SectionWP m_parent_wp; // Weak pointer to parent section 290 ConstString m_name; // Name of this section 291 lldb::addr_t m_file_addr; // The absolute file virtual address range of this section if m_parent == NULL, 292 // offset from parent file virtual address if m_parent != NULL 293 lldb::addr_t m_byte_size; // Size in bytes that this section will occupy in memory at runtime 294 lldb::offset_t m_file_offset; // Object file offset (if any) 295 lldb::offset_t m_file_size; // Object file size (can be smaller than m_byte_size for zero filled sections...) 296 SectionList m_children; // Child sections 297 bool m_fake:1, // If true, then this section only can contain the address if one of its 298 // children contains an address. This allows for gaps between the children 299 // that are contained in the address range for this section, but do not produce 300 // hits unless the children contain the address. 301 m_encrypted:1, // Set to true if the contents are encrypted 302 m_thread_specific:1;// This section is thread specific 303 private: 304 DISALLOW_COPY_AND_ASSIGN (Section); 305 }; 306 307 308 } // namespace lldb_private 309 310 #endif // liblldb_Section_h_ 311
