1 //===-- BreakpointResolverName.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/Breakpoint/BreakpointResolverName.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Breakpoint/BreakpointLocation.h" 17 #include "lldb/Core/Log.h" 18 #include "lldb/Core/StreamString.h" 19 #include "lldb/Target/Target.h" 20 21 using namespace lldb; 22 using namespace lldb_private; 23 24 BreakpointResolverName::BreakpointResolverName 25 ( 26 Breakpoint *bkpt, 27 const char *func_name, 28 uint32_t func_name_type_mask, 29 Breakpoint::MatchType type, 30 bool skip_prologue 31 ) : 32 BreakpointResolver (bkpt, BreakpointResolver::NameResolver), 33 m_func_name (), 34 m_basename_filter (), 35 m_func_name_type_mask (func_name_type_mask), 36 m_class_name (), 37 m_regex (), 38 m_match_type (type), 39 m_skip_prologue (skip_prologue) 40 { 41 if (func_name_type_mask == eFunctionNameTypeAuto) 42 { 43 if ((::strchr (func_name, '(' ) != NULL) || 44 (::strstr (func_name, "-[") == func_name) || 45 (::strstr (func_name, "+[") == func_name)) 46 { 47 // We have a name that contains an open parens, or starts with 48 // "+[" or "-[", so this looks like a complete function prototype 49 m_func_name_type_mask = eFunctionNameTypeFull; 50 } 51 else 52 { 53 // We don't have a full function name, but we might have a partial 54 // function basename with namespaces or classes 55 if (::strstr (func_name, "::") != NULL) 56 { 57 // Keep the full name in "m_basename_filter" 58 m_basename_filter = func_name; 59 // Now set "m_func_name" to just the function basename 60 m_func_name.SetCString(m_basename_filter.c_str() + m_basename_filter.rfind("::") + 2); 61 // We have a name with a double colon which means we have a 62 // function name that is a C++ method or a function in a C++ 63 // namespace 64 m_func_name_type_mask = eFunctionNameTypeBase | eFunctionNameTypeMethod; 65 } 66 else if (::strstr (func_name, ":") != NULL) 67 { 68 // Single colon => selector 69 m_func_name_type_mask = eFunctionNameTypeSelector; 70 } 71 else 72 { 73 // just a basename by default 74 m_func_name_type_mask = eFunctionNameTypeBase; 75 } 76 } 77 } 78 79 if (!m_func_name) 80 m_func_name.SetCString(func_name); 81 82 if (m_match_type == Breakpoint::Regexp) 83 { 84 if (!m_regex.Compile (m_func_name.AsCString())) 85 { 86 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); 87 88 if (log) 89 log->Warning ("function name regexp: \"%s\" did not compile.", m_func_name.AsCString()); 90 } 91 } 92 } 93 94 BreakpointResolverName::BreakpointResolverName 95 ( 96 Breakpoint *bkpt, 97 RegularExpression &func_regex, 98 bool skip_prologue 99 ) : 100 BreakpointResolver (bkpt, BreakpointResolver::NameResolver), 101 m_func_name (NULL), 102 m_class_name (NULL), 103 m_regex (func_regex), 104 m_match_type (Breakpoint::Regexp), 105 m_skip_prologue (skip_prologue) 106 { 107 108 } 109 110 BreakpointResolverName::BreakpointResolverName 111 ( 112 Breakpoint *bkpt, 113 const char *class_name, 114 const char *method, 115 Breakpoint::MatchType type, 116 bool skip_prologue 117 ) : 118 BreakpointResolver (bkpt, BreakpointResolver::NameResolver), 119 m_func_name (method), 120 m_class_name (class_name), 121 m_regex (), 122 m_match_type (type), 123 m_skip_prologue (skip_prologue) 124 { 125 126 } 127 128 BreakpointResolverName::~BreakpointResolverName () 129 { 130 } 131 132 // FIXME: Right now we look at the module level, and call the module's "FindFunctions". 133 // Greg says he will add function tables, maybe at the CompileUnit level to accelerate function 134 // lookup. At that point, we should switch the depth to CompileUnit, and look in these tables. 135 136 Searcher::CallbackReturn 137 BreakpointResolverName::SearchCallback 138 ( 139 SearchFilter &filter, 140 SymbolContext &context, 141 Address *addr, 142 bool containing 143 ) 144 { 145 SymbolContextList func_list; 146 SymbolContextList sym_list; 147 148 uint32_t i; 149 bool new_location; 150 SymbolContext sc; 151 Address break_addr; 152 assert (m_breakpoint != NULL); 153 154 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); 155 156 if (m_class_name) 157 { 158 if (log) 159 log->Warning ("Class/method function specification not supported yet.\n"); 160 return Searcher::eCallbackReturnStop; 161 } 162 163 const bool include_symbols = false; 164 const bool append = false; 165 switch (m_match_type) 166 { 167 case Breakpoint::Exact: 168 if (context.module_sp) 169 { 170 if (m_func_name_type_mask & (eFunctionNameTypeBase | eFunctionNameTypeFull)) 171 context.module_sp->FindSymbolsWithNameAndType (m_func_name, eSymbolTypeCode, sym_list); 172 context.module_sp->FindFunctions (m_func_name, 173 m_func_name_type_mask, 174 include_symbols, 175 append, 176 func_list); 177 } 178 break; 179 case Breakpoint::Regexp: 180 if (context.module_sp) 181 { 182 context.module_sp->FindSymbolsMatchingRegExAndType (m_regex, eSymbolTypeCode, sym_list); 183 context.module_sp->FindFunctions (m_regex, 184 include_symbols, 185 append, 186 func_list); 187 } 188 break; 189 case Breakpoint::Glob: 190 if (log) 191 log->Warning ("glob is not supported yet."); 192 break; 193 } 194 195 if (!m_basename_filter.empty()) 196 { 197 // Filter out any matches whose names don't contain the basename filter 198 const char *basename_filter = m_basename_filter.c_str(); 199 if (func_list.GetSize()) 200 { 201 bool remove = false; 202 for (i = 0; i < func_list.GetSize(); remove = false) 203 { 204 if (func_list.GetContextAtIndex(i, sc) == false) 205 remove = true; 206 else if (sc.function == NULL) 207 remove = true; 208 else 209 { 210 const InlineFunctionInfo* inlined_info = NULL; 211 212 if (sc.block) 213 inlined_info = sc.block->GetInlinedFunctionInfo(); 214 215 if (inlined_info) 216 { 217 if (::strstr (inlined_info->GetName().AsCString(), basename_filter) == NULL) 218 remove = true; 219 } 220 else if (::strstr (sc.function->GetName().AsCString(), basename_filter) == NULL) 221 remove = true; 222 } 223 224 if (remove) 225 { 226 func_list.RemoveContextAtIndex(i); 227 continue; 228 } 229 i++; 230 } 231 } 232 233 if (sym_list.GetSize()) 234 { 235 bool remove = false; 236 for (i = 0; i < sym_list.GetSize(); remove = false) 237 { 238 if (sym_list.GetContextAtIndex(i, sc) == false) 239 remove = true; 240 else if (sc.symbol == NULL) 241 remove = true; 242 else if (::strstr (sc.symbol->GetName().AsCString(), basename_filter) == NULL) 243 remove = true; 244 245 if (remove) 246 { 247 sym_list.RemoveContextAtIndex(i); 248 continue; 249 } 250 i++; 251 } 252 } 253 } 254 255 // Remove any duplicates between the funcion list and the symbol list 256 if (func_list.GetSize()) 257 { 258 for (i = 0; i < func_list.GetSize(); i++) 259 { 260 if (func_list.GetContextAtIndex(i, sc) == false) 261 continue; 262 263 if (sc.function == NULL) 264 continue; 265 uint32_t j = 0; 266 while (j < sym_list.GetSize()) 267 { 268 SymbolContext symbol_sc; 269 if (sym_list.GetContextAtIndex(j, symbol_sc)) 270 { 271 if (symbol_sc.symbol && symbol_sc.symbol->GetAddressRangePtr()) 272 { 273 if (sc.function->GetAddressRange().GetBaseAddress() == symbol_sc.symbol->GetAddressRangePtr()->GetBaseAddress()) 274 { 275 sym_list.RemoveContextAtIndex(j); 276 continue; // Don't increment j 277 } 278 } 279 } 280 281 j++; 282 } 283 } 284 285 for (i = 0; i < func_list.GetSize(); i++) 286 { 287 if (func_list.GetContextAtIndex(i, sc)) 288 { 289 if (sc.block && sc.block->GetInlinedFunctionInfo()) 290 { 291 if (!sc.block->GetStartAddress(break_addr)) 292 break_addr.Clear(); 293 } 294 else if (sc.function) 295 { 296 break_addr = sc.function->GetAddressRange().GetBaseAddress(); 297 if (m_skip_prologue) 298 { 299 if (break_addr.IsValid()) 300 { 301 const uint32_t prologue_byte_size = sc.function->GetPrologueByteSize(); 302 if (prologue_byte_size) 303 break_addr.SetOffset(break_addr.GetOffset() + prologue_byte_size); 304 } 305 } 306 } 307 308 if (break_addr.IsValid()) 309 { 310 if (filter.AddressPasses(break_addr)) 311 { 312 BreakpointLocationSP bp_loc_sp (m_breakpoint->AddLocation(break_addr, &new_location)); 313 if (bp_loc_sp && new_location && !m_breakpoint->IsInternal()) 314 { 315 if (log) 316 { 317 StreamString s; 318 bp_loc_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose); 319 log->Printf ("Added location: %s\n", s.GetData()); 320 } 321 } 322 } 323 } 324 } 325 } 326 } 327 328 for (i = 0; i < sym_list.GetSize(); i++) 329 { 330 if (sym_list.GetContextAtIndex(i, sc)) 331 { 332 if (sc.symbol && sc.symbol->GetAddressRangePtr()) 333 { 334 break_addr = sc.symbol->GetAddressRangePtr()->GetBaseAddress(); 335 336 if (m_skip_prologue) 337 { 338 const uint32_t prologue_byte_size = sc.symbol->GetPrologueByteSize(); 339 if (prologue_byte_size) 340 break_addr.SetOffset(break_addr.GetOffset() + prologue_byte_size); 341 } 342 343 if (filter.AddressPasses(break_addr)) 344 { 345 BreakpointLocationSP bp_loc_sp (m_breakpoint->AddLocation(break_addr, &new_location)); 346 if (bp_loc_sp && new_location && !m_breakpoint->IsInternal()) 347 { 348 StreamString s; 349 bp_loc_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose); 350 if (log) 351 log->Printf ("Added location: %s\n", s.GetData()); 352 } 353 } 354 } 355 } 356 } 357 return Searcher::eCallbackReturnContinue; 358 } 359 360 Searcher::Depth 361 BreakpointResolverName::GetDepth() 362 { 363 return Searcher::eDepthModule; 364 } 365 366 void 367 BreakpointResolverName::GetDescription (Stream *s) 368 { 369 if (m_match_type == Breakpoint::Regexp) 370 s->Printf("regex = '%s'", m_regex.GetText()); 371 else if (m_basename_filter.empty()) 372 s->Printf("name = '%s'", m_func_name.AsCString()); 373 else 374 s->Printf("name = '%s'", m_basename_filter.c_str()); 375 } 376 377 void 378 BreakpointResolverName::Dump (Stream *s) const 379 { 380 381 } 382 383