File: | tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp |
Location: | line 7119, column 97 |
Description: | Called C++ object pointer is null |
1 | //===-- SymbolFileDWARF.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 "SymbolFileDWARF.h" | |||
11 | ||||
12 | // Other libraries and framework includes | |||
13 | #include "clang/AST/ASTConsumer.h" | |||
14 | #include "clang/AST/ASTContext.h" | |||
15 | #include "clang/AST/Decl.h" | |||
16 | #include "clang/AST/DeclGroup.h" | |||
17 | #include "clang/AST/DeclObjC.h" | |||
18 | #include "clang/AST/DeclTemplate.h" | |||
19 | #include "clang/Basic/Builtins.h" | |||
20 | #include "clang/Basic/IdentifierTable.h" | |||
21 | #include "clang/Basic/LangOptions.h" | |||
22 | #include "clang/Basic/SourceManager.h" | |||
23 | #include "clang/Basic/TargetInfo.h" | |||
24 | #include "clang/Basic/Specifiers.h" | |||
25 | #include "clang/Sema/DeclSpec.h" | |||
26 | ||||
27 | #include "llvm/Support/Casting.h" | |||
28 | ||||
29 | #include "lldb/Core/Module.h" | |||
30 | #include "lldb/Core/PluginManager.h" | |||
31 | #include "lldb/Core/RegularExpression.h" | |||
32 | #include "lldb/Core/Scalar.h" | |||
33 | #include "lldb/Core/Section.h" | |||
34 | #include "lldb/Core/StreamFile.h" | |||
35 | #include "lldb/Core/StreamString.h" | |||
36 | #include "lldb/Core/Timer.h" | |||
37 | #include "lldb/Core/Value.h" | |||
38 | ||||
39 | #include "lldb/Host/Host.h" | |||
40 | ||||
41 | #include "lldb/Symbol/Block.h" | |||
42 | #include "lldb/Symbol/ClangExternalASTSourceCallbacks.h" | |||
43 | #include "lldb/Symbol/CompileUnit.h" | |||
44 | #include "lldb/Symbol/LineTable.h" | |||
45 | #include "lldb/Symbol/ObjectFile.h" | |||
46 | #include "lldb/Symbol/SymbolVendor.h" | |||
47 | #include "lldb/Symbol/VariableList.h" | |||
48 | ||||
49 | #include "lldb/Target/ObjCLanguageRuntime.h" | |||
50 | #include "lldb/Target/CPPLanguageRuntime.h" | |||
51 | ||||
52 | #include "DWARFCompileUnit.h" | |||
53 | #include "DWARFDebugAbbrev.h" | |||
54 | #include "DWARFDebugAranges.h" | |||
55 | #include "DWARFDebugInfo.h" | |||
56 | #include "DWARFDebugInfoEntry.h" | |||
57 | #include "DWARFDebugLine.h" | |||
58 | #include "DWARFDebugPubnames.h" | |||
59 | #include "DWARFDebugRanges.h" | |||
60 | #include "DWARFDeclContext.h" | |||
61 | #include "DWARFDIECollection.h" | |||
62 | #include "DWARFFormValue.h" | |||
63 | #include "DWARFLocationList.h" | |||
64 | #include "LogChannelDWARF.h" | |||
65 | #include "SymbolFileDWARFDebugMap.h" | |||
66 | ||||
67 | #include <map> | |||
68 | ||||
69 | #include <ctype.h> | |||
70 | #include <string.h> | |||
71 | ||||
72 | //#define ENABLE_DEBUG_PRINTF // COMMENT OUT THIS LINE PRIOR TO CHECKIN | |||
73 | ||||
74 | #ifdef ENABLE_DEBUG_PRINTF | |||
75 | #include <stdio.h> | |||
76 | #define DEBUG_PRINTF(fmt, ...) printf(fmt, __VA_ARGS__) | |||
77 | #else | |||
78 | #define DEBUG_PRINTF(fmt, ...) | |||
79 | #endif | |||
80 | ||||
81 | #define DIE_IS_BEING_PARSED((lldb_private::Type*)1) ((lldb_private::Type*)1) | |||
82 | ||||
83 | using namespace lldb; | |||
84 | using namespace lldb_private; | |||
85 | ||||
86 | //static inline bool | |||
87 | //child_requires_parent_class_union_or_struct_to_be_completed (dw_tag_t tag) | |||
88 | //{ | |||
89 | // switch (tag) | |||
90 | // { | |||
91 | // default: | |||
92 | // break; | |||
93 | // case DW_TAG_subprogram: | |||
94 | // case DW_TAG_inlined_subroutine: | |||
95 | // case DW_TAG_class_type: | |||
96 | // case DW_TAG_structure_type: | |||
97 | // case DW_TAG_union_type: | |||
98 | // return true; | |||
99 | // } | |||
100 | // return false; | |||
101 | //} | |||
102 | // | |||
103 | static AccessType | |||
104 | DW_ACCESS_to_AccessType (uint32_t dwarf_accessibility) | |||
105 | { | |||
106 | switch (dwarf_accessibility) | |||
107 | { | |||
108 | case DW_ACCESS_public: return eAccessPublic; | |||
109 | case DW_ACCESS_private: return eAccessPrivate; | |||
110 | case DW_ACCESS_protected: return eAccessProtected; | |||
111 | default: break; | |||
112 | } | |||
113 | return eAccessNone; | |||
114 | } | |||
115 | ||||
116 | static const char* | |||
117 | removeHostnameFromPathname(const char* path_from_dwarf) | |||
118 | { | |||
119 | if (!path_from_dwarf || !path_from_dwarf[0]) | |||
120 | { | |||
121 | return path_from_dwarf; | |||
122 | } | |||
123 | ||||
124 | const char *colon_pos = strchr(path_from_dwarf, ':'); | |||
125 | if (!colon_pos) | |||
126 | { | |||
127 | return path_from_dwarf; | |||
128 | } | |||
129 | ||||
130 | // check whether we have a windows path, and so the first character | |||
131 | // is a drive-letter not a hostname. | |||
132 | if ( | |||
133 | colon_pos == path_from_dwarf + 1 && | |||
134 | isalpha(*path_from_dwarf) && | |||
135 | strlen(path_from_dwarf) > 2 && | |||
136 | '\\' == path_from_dwarf[2]) | |||
137 | { | |||
138 | return path_from_dwarf; | |||
139 | } | |||
140 | ||||
141 | return colon_pos + 1; | |||
142 | } | |||
143 | ||||
144 | #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE) | |||
145 | ||||
146 | class DIEStack | |||
147 | { | |||
148 | public: | |||
149 | ||||
150 | void Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) | |||
151 | { | |||
152 | m_dies.push_back (DIEInfo(cu, die)); | |||
153 | } | |||
154 | ||||
155 | ||||
156 | void LogDIEs (Log *log, SymbolFileDWARF *dwarf) | |||
157 | { | |||
158 | StreamString log_strm; | |||
159 | const size_t n = m_dies.size(); | |||
160 | log_strm.Printf("DIEStack[%" PRIu64"l" "u" "]:\n", (uint64_t)n); | |||
161 | for (size_t i=0; i<n; i++) | |||
162 | { | |||
163 | DWARFCompileUnit *cu = m_dies[i].cu; | |||
164 | const DWARFDebugInfoEntry *die = m_dies[i].die; | |||
165 | std::string qualified_name; | |||
166 | die->GetQualifiedName(dwarf, cu, qualified_name); | |||
167 | log_strm.Printf ("[%" PRIu64"l" "u" "] 0x%8.8x: %s name='%s'\n", | |||
168 | (uint64_t)i, | |||
169 | die->GetOffset(), | |||
170 | DW_TAG_value_to_name(die->Tag()), | |||
171 | qualified_name.c_str()); | |||
172 | } | |||
173 | log->PutCString(log_strm.GetData()); | |||
174 | } | |||
175 | void Pop () | |||
176 | { | |||
177 | m_dies.pop_back(); | |||
178 | } | |||
179 | ||||
180 | class ScopedPopper | |||
181 | { | |||
182 | public: | |||
183 | ScopedPopper (DIEStack &die_stack) : | |||
184 | m_die_stack (die_stack), | |||
185 | m_valid (false) | |||
186 | { | |||
187 | } | |||
188 | ||||
189 | void | |||
190 | Push (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) | |||
191 | { | |||
192 | m_valid = true; | |||
193 | m_die_stack.Push (cu, die); | |||
194 | } | |||
195 | ||||
196 | ~ScopedPopper () | |||
197 | { | |||
198 | if (m_valid) | |||
199 | m_die_stack.Pop(); | |||
200 | } | |||
201 | ||||
202 | ||||
203 | ||||
204 | protected: | |||
205 | DIEStack &m_die_stack; | |||
206 | bool m_valid; | |||
207 | }; | |||
208 | ||||
209 | protected: | |||
210 | struct DIEInfo { | |||
211 | DIEInfo (DWARFCompileUnit *c, const DWARFDebugInfoEntry *d) : | |||
212 | cu(c), | |||
213 | die(d) | |||
214 | { | |||
215 | } | |||
216 | DWARFCompileUnit *cu; | |||
217 | const DWARFDebugInfoEntry *die; | |||
218 | }; | |||
219 | typedef std::vector<DIEInfo> Stack; | |||
220 | Stack m_dies; | |||
221 | }; | |||
222 | #endif | |||
223 | ||||
224 | void | |||
225 | SymbolFileDWARF::Initialize() | |||
226 | { | |||
227 | LogChannelDWARF::Initialize(); | |||
228 | PluginManager::RegisterPlugin (GetPluginNameStatic(), | |||
229 | GetPluginDescriptionStatic(), | |||
230 | CreateInstance); | |||
231 | } | |||
232 | ||||
233 | void | |||
234 | SymbolFileDWARF::Terminate() | |||
235 | { | |||
236 | PluginManager::UnregisterPlugin (CreateInstance); | |||
237 | LogChannelDWARF::Initialize(); | |||
238 | } | |||
239 | ||||
240 | ||||
241 | lldb_private::ConstString | |||
242 | SymbolFileDWARF::GetPluginNameStatic() | |||
243 | { | |||
244 | static ConstString g_name("dwarf"); | |||
245 | return g_name; | |||
246 | } | |||
247 | ||||
248 | const char * | |||
249 | SymbolFileDWARF::GetPluginDescriptionStatic() | |||
250 | { | |||
251 | return "DWARF and DWARF3 debug symbol file reader."; | |||
252 | } | |||
253 | ||||
254 | ||||
255 | SymbolFile* | |||
256 | SymbolFileDWARF::CreateInstance (ObjectFile* obj_file) | |||
257 | { | |||
258 | return new SymbolFileDWARF(obj_file); | |||
259 | } | |||
260 | ||||
261 | TypeList * | |||
262 | SymbolFileDWARF::GetTypeList () | |||
263 | { | |||
264 | if (GetDebugMapSymfile ()) | |||
265 | return m_debug_map_symfile->GetTypeList(); | |||
266 | return m_obj_file->GetModule()->GetTypeList(); | |||
267 | ||||
268 | } | |||
269 | void | |||
270 | SymbolFileDWARF::GetTypes (DWARFCompileUnit* cu, | |||
271 | const DWARFDebugInfoEntry *die, | |||
272 | dw_offset_t min_die_offset, | |||
273 | dw_offset_t max_die_offset, | |||
274 | uint32_t type_mask, | |||
275 | TypeSet &type_set) | |||
276 | { | |||
277 | if (cu) | |||
278 | { | |||
279 | if (die) | |||
280 | { | |||
281 | const dw_offset_t die_offset = die->GetOffset(); | |||
282 | ||||
283 | if (die_offset >= max_die_offset) | |||
284 | return; | |||
285 | ||||
286 | if (die_offset >= min_die_offset) | |||
287 | { | |||
288 | const dw_tag_t tag = die->Tag(); | |||
289 | ||||
290 | bool add_type = false; | |||
291 | ||||
292 | switch (tag) | |||
293 | { | |||
294 | case DW_TAG_array_type: add_type = (type_mask & eTypeClassArray ) != 0; break; | |||
295 | case DW_TAG_unspecified_type: | |||
296 | case DW_TAG_base_type: add_type = (type_mask & eTypeClassBuiltin ) != 0; break; | |||
297 | case DW_TAG_class_type: add_type = (type_mask & eTypeClassClass ) != 0; break; | |||
298 | case DW_TAG_structure_type: add_type = (type_mask & eTypeClassStruct ) != 0; break; | |||
299 | case DW_TAG_union_type: add_type = (type_mask & eTypeClassUnion ) != 0; break; | |||
300 | case DW_TAG_enumeration_type: add_type = (type_mask & eTypeClassEnumeration ) != 0; break; | |||
301 | case DW_TAG_subroutine_type: | |||
302 | case DW_TAG_subprogram: | |||
303 | case DW_TAG_inlined_subroutine: add_type = (type_mask & eTypeClassFunction ) != 0; break; | |||
304 | case DW_TAG_pointer_type: add_type = (type_mask & eTypeClassPointer ) != 0; break; | |||
305 | case DW_TAG_rvalue_reference_type: | |||
306 | case DW_TAG_reference_type: add_type = (type_mask & eTypeClassReference ) != 0; break; | |||
307 | case DW_TAG_typedef: add_type = (type_mask & eTypeClassTypedef ) != 0; break; | |||
308 | case DW_TAG_ptr_to_member_type: add_type = (type_mask & eTypeClassMemberPointer ) != 0; break; | |||
309 | } | |||
310 | ||||
311 | if (add_type) | |||
312 | { | |||
313 | const bool assert_not_being_parsed = true; | |||
314 | Type *type = ResolveTypeUID (cu, die, assert_not_being_parsed); | |||
315 | if (type) | |||
316 | { | |||
317 | if (type_set.find(type) == type_set.end()) | |||
318 | type_set.insert(type); | |||
319 | } | |||
320 | } | |||
321 | } | |||
322 | ||||
323 | for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); | |||
324 | child_die != NULL__null; | |||
325 | child_die = child_die->GetSibling()) | |||
326 | { | |||
327 | GetTypes (cu, child_die, min_die_offset, max_die_offset, type_mask, type_set); | |||
328 | } | |||
329 | } | |||
330 | } | |||
331 | } | |||
332 | ||||
333 | size_t | |||
334 | SymbolFileDWARF::GetTypes (SymbolContextScope *sc_scope, | |||
335 | uint32_t type_mask, | |||
336 | TypeList &type_list) | |||
337 | ||||
338 | { | |||
339 | TypeSet type_set; | |||
340 | ||||
341 | CompileUnit *comp_unit = NULL__null; | |||
342 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||
343 | if (sc_scope) | |||
344 | comp_unit = sc_scope->CalculateSymbolContextCompileUnit(); | |||
345 | ||||
346 | if (comp_unit) | |||
347 | { | |||
348 | dwarf_cu = GetDWARFCompileUnit(comp_unit); | |||
349 | if (dwarf_cu == 0) | |||
350 | return 0; | |||
351 | GetTypes (dwarf_cu, | |||
352 | dwarf_cu->DIE(), | |||
353 | dwarf_cu->GetOffset(), | |||
354 | dwarf_cu->GetNextCompileUnitOffset(), | |||
355 | type_mask, | |||
356 | type_set); | |||
357 | } | |||
358 | else | |||
359 | { | |||
360 | DWARFDebugInfo* info = DebugInfo(); | |||
361 | if (info) | |||
362 | { | |||
363 | const size_t num_cus = info->GetNumCompileUnits(); | |||
364 | for (size_t cu_idx=0; cu_idx<num_cus; ++cu_idx) | |||
365 | { | |||
366 | dwarf_cu = info->GetCompileUnitAtIndex(cu_idx); | |||
367 | if (dwarf_cu) | |||
368 | { | |||
369 | GetTypes (dwarf_cu, | |||
370 | dwarf_cu->DIE(), | |||
371 | 0, | |||
372 | UINT32_MAX(4294967295U), | |||
373 | type_mask, | |||
374 | type_set); | |||
375 | } | |||
376 | } | |||
377 | } | |||
378 | } | |||
379 | // if (m_using_apple_tables) | |||
380 | // { | |||
381 | // DWARFMappedHash::MemoryTable *apple_types = m_apple_types_ap.get(); | |||
382 | // if (apple_types) | |||
383 | // { | |||
384 | // apple_types->ForEach([this, &type_set, apple_types, type_mask](const DWARFMappedHash::DIEInfoArray &die_info_array) -> bool { | |||
385 | // | |||
386 | // for (auto die_info: die_info_array) | |||
387 | // { | |||
388 | // bool add_type = TagMatchesTypeMask (type_mask, 0); | |||
389 | // if (!add_type) | |||
390 | // { | |||
391 | // dw_tag_t tag = die_info.tag; | |||
392 | // if (tag == 0) | |||
393 | // { | |||
394 | // const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_info.offset, NULL); | |||
395 | // tag = die->Tag(); | |||
396 | // } | |||
397 | // add_type = TagMatchesTypeMask (type_mask, tag); | |||
398 | // } | |||
399 | // if (add_type) | |||
400 | // { | |||
401 | // Type *type = ResolveTypeUID(die_info.offset); | |||
402 | // | |||
403 | // if (type_set.find(type) == type_set.end()) | |||
404 | // type_set.insert(type); | |||
405 | // } | |||
406 | // } | |||
407 | // return true; // Keep iterating | |||
408 | // }); | |||
409 | // } | |||
410 | // } | |||
411 | // else | |||
412 | // { | |||
413 | // if (!m_indexed) | |||
414 | // Index (); | |||
415 | // | |||
416 | // m_type_index.ForEach([this, &type_set, type_mask](const char *name, uint32_t die_offset) -> bool { | |||
417 | // | |||
418 | // bool add_type = TagMatchesTypeMask (type_mask, 0); | |||
419 | // | |||
420 | // if (!add_type) | |||
421 | // { | |||
422 | // const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtr(die_offset, NULL); | |||
423 | // if (die) | |||
424 | // { | |||
425 | // const dw_tag_t tag = die->Tag(); | |||
426 | // add_type = TagMatchesTypeMask (type_mask, tag); | |||
427 | // } | |||
428 | // } | |||
429 | // | |||
430 | // if (add_type) | |||
431 | // { | |||
432 | // Type *type = ResolveTypeUID(die_offset); | |||
433 | // | |||
434 | // if (type_set.find(type) == type_set.end()) | |||
435 | // type_set.insert(type); | |||
436 | // } | |||
437 | // return true; // Keep iterating | |||
438 | // }); | |||
439 | // } | |||
440 | ||||
441 | std::set<ClangASTType> clang_type_set; | |||
442 | size_t num_types_added = 0; | |||
443 | for (Type *type : type_set) | |||
444 | { | |||
445 | ClangASTType clang_type = type->GetClangForwardType(); | |||
446 | if (clang_type_set.find(clang_type) == clang_type_set.end()) | |||
447 | { | |||
448 | clang_type_set.insert(clang_type); | |||
449 | type_list.Insert (type->shared_from_this()); | |||
450 | ++num_types_added; | |||
451 | } | |||
452 | } | |||
453 | return num_types_added; | |||
454 | } | |||
455 | ||||
456 | ||||
457 | //---------------------------------------------------------------------- | |||
458 | // Gets the first parent that is a lexical block, function or inlined | |||
459 | // subroutine, or compile unit. | |||
460 | //---------------------------------------------------------------------- | |||
461 | static const DWARFDebugInfoEntry * | |||
462 | GetParentSymbolContextDIE(const DWARFDebugInfoEntry *child_die) | |||
463 | { | |||
464 | const DWARFDebugInfoEntry *die; | |||
465 | for (die = child_die->GetParent(); die != NULL__null; die = die->GetParent()) | |||
466 | { | |||
467 | dw_tag_t tag = die->Tag(); | |||
468 | ||||
469 | switch (tag) | |||
470 | { | |||
471 | case DW_TAG_compile_unit: | |||
472 | case DW_TAG_subprogram: | |||
473 | case DW_TAG_inlined_subroutine: | |||
474 | case DW_TAG_lexical_block: | |||
475 | return die; | |||
476 | } | |||
477 | } | |||
478 | return NULL__null; | |||
479 | } | |||
480 | ||||
481 | ||||
482 | SymbolFileDWARF::SymbolFileDWARF(ObjectFile* objfile) : | |||
483 | SymbolFile (objfile), | |||
484 | UserID (0), // Used by SymbolFileDWARFDebugMap to when this class parses .o files to contain the .o file index/ID | |||
485 | m_debug_map_module_wp (), | |||
486 | m_debug_map_symfile (NULL__null), | |||
487 | m_clang_tu_decl (NULL__null), | |||
488 | m_flags(), | |||
489 | m_data_debug_abbrev (), | |||
490 | m_data_debug_aranges (), | |||
491 | m_data_debug_frame (), | |||
492 | m_data_debug_info (), | |||
493 | m_data_debug_line (), | |||
494 | m_data_debug_loc (), | |||
495 | m_data_debug_ranges (), | |||
496 | m_data_debug_str (), | |||
497 | m_data_apple_names (), | |||
498 | m_data_apple_types (), | |||
499 | m_data_apple_namespaces (), | |||
500 | m_abbr(), | |||
501 | m_info(), | |||
502 | m_line(), | |||
503 | m_apple_names_ap (), | |||
504 | m_apple_types_ap (), | |||
505 | m_apple_namespaces_ap (), | |||
506 | m_apple_objc_ap (), | |||
507 | m_function_basename_index(), | |||
508 | m_function_fullname_index(), | |||
509 | m_function_method_index(), | |||
510 | m_function_selector_index(), | |||
511 | m_objc_class_selectors_index(), | |||
512 | m_global_index(), | |||
513 | m_type_index(), | |||
514 | m_namespace_index(), | |||
515 | m_indexed (false), | |||
516 | m_is_external_ast_source (false), | |||
517 | m_using_apple_tables (false), | |||
518 | m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate), | |||
519 | m_ranges(), | |||
520 | m_unique_ast_type_map () | |||
521 | { | |||
522 | } | |||
523 | ||||
524 | SymbolFileDWARF::~SymbolFileDWARF() | |||
525 | { | |||
526 | if (m_is_external_ast_source) | |||
527 | { | |||
528 | ModuleSP module_sp (m_obj_file->GetModule()); | |||
529 | if (module_sp) | |||
530 | module_sp->GetClangASTContext().RemoveExternalSource (); | |||
531 | } | |||
532 | } | |||
533 | ||||
534 | static const ConstString & | |||
535 | GetDWARFMachOSegmentName () | |||
536 | { | |||
537 | static ConstString g_dwarf_section_name ("__DWARF"); | |||
538 | return g_dwarf_section_name; | |||
539 | } | |||
540 | ||||
541 | UniqueDWARFASTTypeMap & | |||
542 | SymbolFileDWARF::GetUniqueDWARFASTTypeMap () | |||
543 | { | |||
544 | if (GetDebugMapSymfile ()) | |||
545 | return m_debug_map_symfile->GetUniqueDWARFASTTypeMap (); | |||
546 | return m_unique_ast_type_map; | |||
547 | } | |||
548 | ||||
549 | ClangASTContext & | |||
550 | SymbolFileDWARF::GetClangASTContext () | |||
551 | { | |||
552 | if (GetDebugMapSymfile ()) | |||
553 | return m_debug_map_symfile->GetClangASTContext (); | |||
554 | ||||
555 | ClangASTContext &ast = m_obj_file->GetModule()->GetClangASTContext(); | |||
556 | if (!m_is_external_ast_source) | |||
557 | { | |||
558 | m_is_external_ast_source = true; | |||
559 | llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_ap ( | |||
560 | new ClangExternalASTSourceCallbacks (SymbolFileDWARF::CompleteTagDecl, | |||
561 | SymbolFileDWARF::CompleteObjCInterfaceDecl, | |||
562 | SymbolFileDWARF::FindExternalVisibleDeclsByName, | |||
563 | SymbolFileDWARF::LayoutRecordType, | |||
564 | this)); | |||
565 | ast.SetExternalSource (ast_source_ap); | |||
566 | } | |||
567 | return ast; | |||
568 | } | |||
569 | ||||
570 | void | |||
571 | SymbolFileDWARF::InitializeObject() | |||
572 | { | |||
573 | // Install our external AST source callbacks so we can complete Clang types. | |||
574 | ModuleSP module_sp (m_obj_file->GetModule()); | |||
575 | if (module_sp) | |||
576 | { | |||
577 | const SectionList *section_list = module_sp->GetSectionList(); | |||
578 | ||||
579 | const Section* section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get(); | |||
580 | ||||
581 | // Memory map the DWARF mach-o segment so we have everything mmap'ed | |||
582 | // to keep our heap memory usage down. | |||
583 | if (section) | |||
584 | m_obj_file->MemoryMapSectionData(section, m_dwarf_data); | |||
585 | } | |||
586 | get_apple_names_data(); | |||
587 | if (m_data_apple_names.GetByteSize() > 0) | |||
588 | { | |||
589 | m_apple_names_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_names, get_debug_str_data(), ".apple_names")); | |||
590 | if (m_apple_names_ap->IsValid()) | |||
591 | m_using_apple_tables = true; | |||
592 | else | |||
593 | m_apple_names_ap.reset(); | |||
594 | } | |||
595 | get_apple_types_data(); | |||
596 | if (m_data_apple_types.GetByteSize() > 0) | |||
597 | { | |||
598 | m_apple_types_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_types, get_debug_str_data(), ".apple_types")); | |||
599 | if (m_apple_types_ap->IsValid()) | |||
600 | m_using_apple_tables = true; | |||
601 | else | |||
602 | m_apple_types_ap.reset(); | |||
603 | } | |||
604 | ||||
605 | get_apple_namespaces_data(); | |||
606 | if (m_data_apple_namespaces.GetByteSize() > 0) | |||
607 | { | |||
608 | m_apple_namespaces_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_namespaces, get_debug_str_data(), ".apple_namespaces")); | |||
609 | if (m_apple_namespaces_ap->IsValid()) | |||
610 | m_using_apple_tables = true; | |||
611 | else | |||
612 | m_apple_namespaces_ap.reset(); | |||
613 | } | |||
614 | ||||
615 | get_apple_objc_data(); | |||
616 | if (m_data_apple_objc.GetByteSize() > 0) | |||
617 | { | |||
618 | m_apple_objc_ap.reset (new DWARFMappedHash::MemoryTable (m_data_apple_objc, get_debug_str_data(), ".apple_objc")); | |||
619 | if (m_apple_objc_ap->IsValid()) | |||
620 | m_using_apple_tables = true; | |||
621 | else | |||
622 | m_apple_objc_ap.reset(); | |||
623 | } | |||
624 | } | |||
625 | ||||
626 | bool | |||
627 | SymbolFileDWARF::SupportedVersion(uint16_t version) | |||
628 | { | |||
629 | return version == 2 || version == 3 || version == 4; | |||
630 | } | |||
631 | ||||
632 | uint32_t | |||
633 | SymbolFileDWARF::CalculateAbilities () | |||
634 | { | |||
635 | uint32_t abilities = 0; | |||
636 | if (m_obj_file != NULL__null) | |||
637 | { | |||
638 | const Section* section = NULL__null; | |||
639 | const SectionList *section_list = m_obj_file->GetSectionList(); | |||
640 | if (section_list == NULL__null) | |||
641 | return 0; | |||
642 | ||||
643 | uint64_t debug_abbrev_file_size = 0; | |||
644 | uint64_t debug_info_file_size = 0; | |||
645 | uint64_t debug_line_file_size = 0; | |||
646 | ||||
647 | section = section_list->FindSectionByName(GetDWARFMachOSegmentName ()).get(); | |||
648 | ||||
649 | if (section) | |||
650 | section_list = §ion->GetChildren (); | |||
651 | ||||
652 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugInfo, true).get(); | |||
653 | if (section != NULL__null) | |||
654 | { | |||
655 | debug_info_file_size = section->GetFileSize(); | |||
656 | ||||
657 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugAbbrev, true).get(); | |||
658 | if (section) | |||
659 | debug_abbrev_file_size = section->GetFileSize(); | |||
660 | else | |||
661 | m_flags.Set (flagsGotDebugAbbrevData); | |||
662 | ||||
663 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugAranges, true).get(); | |||
664 | if (!section) | |||
665 | m_flags.Set (flagsGotDebugArangesData); | |||
666 | ||||
667 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugFrame, true).get(); | |||
668 | if (!section) | |||
669 | m_flags.Set (flagsGotDebugFrameData); | |||
670 | ||||
671 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugLine, true).get(); | |||
672 | if (section) | |||
673 | debug_line_file_size = section->GetFileSize(); | |||
674 | else | |||
675 | m_flags.Set (flagsGotDebugLineData); | |||
676 | ||||
677 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugLoc, true).get(); | |||
678 | if (!section) | |||
679 | m_flags.Set (flagsGotDebugLocData); | |||
680 | ||||
681 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugMacInfo, true).get(); | |||
682 | if (!section) | |||
683 | m_flags.Set (flagsGotDebugMacInfoData); | |||
684 | ||||
685 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubNames, true).get(); | |||
686 | if (!section) | |||
687 | m_flags.Set (flagsGotDebugPubNamesData); | |||
688 | ||||
689 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugPubTypes, true).get(); | |||
690 | if (!section) | |||
691 | m_flags.Set (flagsGotDebugPubTypesData); | |||
692 | ||||
693 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugRanges, true).get(); | |||
694 | if (!section) | |||
695 | m_flags.Set (flagsGotDebugRangesData); | |||
696 | ||||
697 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get(); | |||
698 | if (!section) | |||
699 | m_flags.Set (flagsGotDebugStrData); | |||
700 | } | |||
701 | else | |||
702 | { | |||
703 | const char *symfile_dir_cstr = m_obj_file->GetFileSpec().GetDirectory().GetCString(); | |||
704 | if (symfile_dir_cstr) | |||
705 | { | |||
706 | if (strcasestr(symfile_dir_cstr, ".dsym")) | |||
707 | { | |||
708 | if (m_obj_file->GetType() == ObjectFile::eTypeDebugInfo) | |||
709 | { | |||
710 | // We have a dSYM file that didn't have a any debug info. | |||
711 | // If the string table has a size of 1, then it was made from | |||
712 | // an executable with no debug info, or from an executable that | |||
713 | // was stripped. | |||
714 | section = section_list->FindSectionByType (eSectionTypeDWARFDebugStr, true).get(); | |||
715 | if (section && section->GetFileSize() == 1) | |||
716 | { | |||
717 | m_obj_file->GetModule()->ReportWarning ("empty dSYM file detected, dSYM was created with an executable with no debug info."); | |||
718 | } | |||
719 | } | |||
720 | } | |||
721 | } | |||
722 | } | |||
723 | ||||
724 | if (debug_abbrev_file_size > 0 && debug_info_file_size > 0) | |||
725 | abilities |= CompileUnits | Functions | Blocks | GlobalVariables | LocalVariables | VariableTypes; | |||
726 | ||||
727 | if (debug_line_file_size > 0) | |||
728 | abilities |= LineTables; | |||
729 | } | |||
730 | return abilities; | |||
731 | } | |||
732 | ||||
733 | const DWARFDataExtractor& | |||
734 | SymbolFileDWARF::GetCachedSectionData (uint32_t got_flag, SectionType sect_type, DWARFDataExtractor &data) | |||
735 | { | |||
736 | if (m_flags.IsClear (got_flag)) | |||
737 | { | |||
738 | ModuleSP module_sp (m_obj_file->GetModule()); | |||
739 | m_flags.Set (got_flag); | |||
740 | const SectionList *section_list = module_sp->GetSectionList(); | |||
741 | if (section_list) | |||
742 | { | |||
743 | SectionSP section_sp (section_list->FindSectionByType(sect_type, true)); | |||
744 | if (section_sp) | |||
745 | { | |||
746 | // See if we memory mapped the DWARF segment? | |||
747 | if (m_dwarf_data.GetByteSize()) | |||
748 | { | |||
749 | data.SetData(m_dwarf_data, section_sp->GetOffset (), section_sp->GetFileSize()); | |||
750 | } | |||
751 | else | |||
752 | { | |||
753 | if (m_obj_file->ReadSectionData (section_sp.get(), data) == 0) | |||
754 | data.Clear(); | |||
755 | } | |||
756 | } | |||
757 | } | |||
758 | } | |||
759 | return data; | |||
760 | } | |||
761 | ||||
762 | const DWARFDataExtractor& | |||
763 | SymbolFileDWARF::get_debug_abbrev_data() | |||
764 | { | |||
765 | return GetCachedSectionData (flagsGotDebugAbbrevData, eSectionTypeDWARFDebugAbbrev, m_data_debug_abbrev); | |||
766 | } | |||
767 | ||||
768 | const DWARFDataExtractor& | |||
769 | SymbolFileDWARF::get_debug_aranges_data() | |||
770 | { | |||
771 | return GetCachedSectionData (flagsGotDebugArangesData, eSectionTypeDWARFDebugAranges, m_data_debug_aranges); | |||
772 | } | |||
773 | ||||
774 | const DWARFDataExtractor& | |||
775 | SymbolFileDWARF::get_debug_frame_data() | |||
776 | { | |||
777 | return GetCachedSectionData (flagsGotDebugFrameData, eSectionTypeDWARFDebugFrame, m_data_debug_frame); | |||
778 | } | |||
779 | ||||
780 | const DWARFDataExtractor& | |||
781 | SymbolFileDWARF::get_debug_info_data() | |||
782 | { | |||
783 | return GetCachedSectionData (flagsGotDebugInfoData, eSectionTypeDWARFDebugInfo, m_data_debug_info); | |||
784 | } | |||
785 | ||||
786 | const DWARFDataExtractor& | |||
787 | SymbolFileDWARF::get_debug_line_data() | |||
788 | { | |||
789 | return GetCachedSectionData (flagsGotDebugLineData, eSectionTypeDWARFDebugLine, m_data_debug_line); | |||
790 | } | |||
791 | ||||
792 | const DWARFDataExtractor& | |||
793 | SymbolFileDWARF::get_debug_loc_data() | |||
794 | { | |||
795 | return GetCachedSectionData (flagsGotDebugLocData, eSectionTypeDWARFDebugLoc, m_data_debug_loc); | |||
796 | } | |||
797 | ||||
798 | const DWARFDataExtractor& | |||
799 | SymbolFileDWARF::get_debug_ranges_data() | |||
800 | { | |||
801 | return GetCachedSectionData (flagsGotDebugRangesData, eSectionTypeDWARFDebugRanges, m_data_debug_ranges); | |||
802 | } | |||
803 | ||||
804 | const DWARFDataExtractor& | |||
805 | SymbolFileDWARF::get_debug_str_data() | |||
806 | { | |||
807 | return GetCachedSectionData (flagsGotDebugStrData, eSectionTypeDWARFDebugStr, m_data_debug_str); | |||
808 | } | |||
809 | ||||
810 | const DWARFDataExtractor& | |||
811 | SymbolFileDWARF::get_apple_names_data() | |||
812 | { | |||
813 | return GetCachedSectionData (flagsGotAppleNamesData, eSectionTypeDWARFAppleNames, m_data_apple_names); | |||
814 | } | |||
815 | ||||
816 | const DWARFDataExtractor& | |||
817 | SymbolFileDWARF::get_apple_types_data() | |||
818 | { | |||
819 | return GetCachedSectionData (flagsGotAppleTypesData, eSectionTypeDWARFAppleTypes, m_data_apple_types); | |||
820 | } | |||
821 | ||||
822 | const DWARFDataExtractor& | |||
823 | SymbolFileDWARF::get_apple_namespaces_data() | |||
824 | { | |||
825 | return GetCachedSectionData (flagsGotAppleNamespacesData, eSectionTypeDWARFAppleNamespaces, m_data_apple_namespaces); | |||
826 | } | |||
827 | ||||
828 | const DWARFDataExtractor& | |||
829 | SymbolFileDWARF::get_apple_objc_data() | |||
830 | { | |||
831 | return GetCachedSectionData (flagsGotAppleObjCData, eSectionTypeDWARFAppleObjC, m_data_apple_objc); | |||
832 | } | |||
833 | ||||
834 | ||||
835 | DWARFDebugAbbrev* | |||
836 | SymbolFileDWARF::DebugAbbrev() | |||
837 | { | |||
838 | if (m_abbr.get() == NULL__null) | |||
839 | { | |||
840 | const DWARFDataExtractor &debug_abbrev_data = get_debug_abbrev_data(); | |||
841 | if (debug_abbrev_data.GetByteSize() > 0) | |||
842 | { | |||
843 | m_abbr.reset(new DWARFDebugAbbrev()); | |||
844 | if (m_abbr.get()) | |||
845 | m_abbr->Parse(debug_abbrev_data); | |||
846 | } | |||
847 | } | |||
848 | return m_abbr.get(); | |||
849 | } | |||
850 | ||||
851 | const DWARFDebugAbbrev* | |||
852 | SymbolFileDWARF::DebugAbbrev() const | |||
853 | { | |||
854 | return m_abbr.get(); | |||
855 | } | |||
856 | ||||
857 | ||||
858 | DWARFDebugInfo* | |||
859 | SymbolFileDWARF::DebugInfo() | |||
860 | { | |||
861 | if (m_info.get() == NULL__null) | |||
862 | { | |||
863 | Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p", | |||
864 | __PRETTY_FUNCTION__, static_cast<void*>(this)); | |||
865 | if (get_debug_info_data().GetByteSize() > 0) | |||
866 | { | |||
867 | m_info.reset(new DWARFDebugInfo()); | |||
868 | if (m_info.get()) | |||
869 | { | |||
870 | m_info->SetDwarfData(this); | |||
871 | } | |||
872 | } | |||
873 | } | |||
874 | return m_info.get(); | |||
875 | } | |||
876 | ||||
877 | const DWARFDebugInfo* | |||
878 | SymbolFileDWARF::DebugInfo() const | |||
879 | { | |||
880 | return m_info.get(); | |||
881 | } | |||
882 | ||||
883 | DWARFCompileUnit* | |||
884 | SymbolFileDWARF::GetDWARFCompileUnit(lldb_private::CompileUnit *comp_unit) | |||
885 | { | |||
886 | DWARFDebugInfo* info = DebugInfo(); | |||
887 | if (info) | |||
888 | { | |||
889 | if (GetDebugMapSymfile ()) | |||
890 | { | |||
891 | // The debug map symbol file made the compile units for this DWARF | |||
892 | // file which is .o file with DWARF in it, and we should have | |||
893 | // only 1 compile unit which is at offset zero in the DWARF. | |||
894 | // TODO: modify to support LTO .o files where each .o file might | |||
895 | // have multiple DW_TAG_compile_unit tags. | |||
896 | return info->GetCompileUnit(0).get(); | |||
897 | } | |||
898 | else | |||
899 | { | |||
900 | // Just a normal DWARF file whose user ID for the compile unit is | |||
901 | // the DWARF offset itself | |||
902 | return info->GetCompileUnit((dw_offset_t)comp_unit->GetID()).get(); | |||
903 | } | |||
904 | } | |||
905 | return NULL__null; | |||
906 | } | |||
907 | ||||
908 | ||||
909 | DWARFDebugRanges* | |||
910 | SymbolFileDWARF::DebugRanges() | |||
911 | { | |||
912 | if (m_ranges.get() == NULL__null) | |||
913 | { | |||
914 | Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p", | |||
915 | __PRETTY_FUNCTION__, static_cast<void*>(this)); | |||
916 | if (get_debug_ranges_data().GetByteSize() > 0) | |||
917 | { | |||
918 | m_ranges.reset(new DWARFDebugRanges()); | |||
919 | if (m_ranges.get()) | |||
920 | m_ranges->Extract(this); | |||
921 | } | |||
922 | } | |||
923 | return m_ranges.get(); | |||
924 | } | |||
925 | ||||
926 | const DWARFDebugRanges* | |||
927 | SymbolFileDWARF::DebugRanges() const | |||
928 | { | |||
929 | return m_ranges.get(); | |||
930 | } | |||
931 | ||||
932 | lldb::CompUnitSP | |||
933 | SymbolFileDWARF::ParseCompileUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx) | |||
934 | { | |||
935 | CompUnitSP cu_sp; | |||
936 | if (dwarf_cu) | |||
937 | { | |||
938 | CompileUnit *comp_unit = (CompileUnit*)dwarf_cu->GetUserData(); | |||
939 | if (comp_unit) | |||
940 | { | |||
941 | // We already parsed this compile unit, had out a shared pointer to it | |||
942 | cu_sp = comp_unit->shared_from_this(); | |||
943 | } | |||
944 | else | |||
945 | { | |||
946 | if (GetDebugMapSymfile ()) | |||
947 | { | |||
948 | // Let the debug map create the compile unit | |||
949 | cu_sp = m_debug_map_symfile->GetCompileUnit(this); | |||
950 | dwarf_cu->SetUserData(cu_sp.get()); | |||
951 | } | |||
952 | else | |||
953 | { | |||
954 | ModuleSP module_sp (m_obj_file->GetModule()); | |||
955 | if (module_sp) | |||
956 | { | |||
957 | const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly (); | |||
958 | if (cu_die) | |||
959 | { | |||
960 | const char * cu_die_name = cu_die->GetName(this, dwarf_cu); | |||
961 | const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL__null); | |||
962 | LanguageType cu_language = (LanguageType)cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0); | |||
963 | if (cu_die_name) | |||
964 | { | |||
965 | std::string ramapped_file; | |||
966 | FileSpec cu_file_spec; | |||
967 | ||||
968 | if (cu_die_name[0] == '/' || cu_comp_dir == NULL__null || cu_comp_dir[0] == '\0') | |||
969 | { | |||
970 | // If we have a full path to the compile unit, we don't need to resolve | |||
971 | // the file. This can be expensive e.g. when the source files are NFS mounted. | |||
972 | if (module_sp->RemapSourceFile(cu_die_name, ramapped_file)) | |||
973 | cu_file_spec.SetFile (ramapped_file.c_str(), false); | |||
974 | else | |||
975 | cu_file_spec.SetFile (cu_die_name, false); | |||
976 | } | |||
977 | else | |||
978 | { | |||
979 | // DWARF2/3 suggests the form hostname:pathname for compilation directory. | |||
980 | // Remove the host part if present. | |||
981 | cu_comp_dir = removeHostnameFromPathname(cu_comp_dir); | |||
982 | std::string fullpath(cu_comp_dir); | |||
983 | ||||
984 | if (*fullpath.rbegin() != '/') | |||
985 | fullpath += '/'; | |||
986 | fullpath += cu_die_name; | |||
987 | if (module_sp->RemapSourceFile (fullpath.c_str(), ramapped_file)) | |||
988 | cu_file_spec.SetFile (ramapped_file.c_str(), false); | |||
989 | else | |||
990 | cu_file_spec.SetFile (fullpath.c_str(), false); | |||
991 | } | |||
992 | ||||
993 | cu_sp.reset(new CompileUnit (module_sp, | |||
994 | dwarf_cu, | |||
995 | cu_file_spec, | |||
996 | MakeUserID(dwarf_cu->GetOffset()), | |||
997 | cu_language)); | |||
998 | if (cu_sp) | |||
999 | { | |||
1000 | dwarf_cu->SetUserData(cu_sp.get()); | |||
1001 | ||||
1002 | // Figure out the compile unit index if we weren't given one | |||
1003 | if (cu_idx == UINT32_MAX(4294967295U)) | |||
1004 | DebugInfo()->GetCompileUnit(dwarf_cu->GetOffset(), &cu_idx); | |||
1005 | ||||
1006 | m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(cu_idx, cu_sp); | |||
1007 | } | |||
1008 | } | |||
1009 | } | |||
1010 | } | |||
1011 | } | |||
1012 | } | |||
1013 | } | |||
1014 | return cu_sp; | |||
1015 | } | |||
1016 | ||||
1017 | uint32_t | |||
1018 | SymbolFileDWARF::GetNumCompileUnits() | |||
1019 | { | |||
1020 | DWARFDebugInfo* info = DebugInfo(); | |||
1021 | if (info) | |||
1022 | return info->GetNumCompileUnits(); | |||
1023 | return 0; | |||
1024 | } | |||
1025 | ||||
1026 | CompUnitSP | |||
1027 | SymbolFileDWARF::ParseCompileUnitAtIndex(uint32_t cu_idx) | |||
1028 | { | |||
1029 | CompUnitSP cu_sp; | |||
1030 | DWARFDebugInfo* info = DebugInfo(); | |||
1031 | if (info) | |||
1032 | { | |||
1033 | DWARFCompileUnit* dwarf_cu = info->GetCompileUnitAtIndex(cu_idx); | |||
1034 | if (dwarf_cu) | |||
1035 | cu_sp = ParseCompileUnit(dwarf_cu, cu_idx); | |||
1036 | } | |||
1037 | return cu_sp; | |||
1038 | } | |||
1039 | ||||
1040 | static void | |||
1041 | AddRangesToBlock (Block& block, | |||
1042 | DWARFDebugRanges::RangeList& ranges, | |||
1043 | addr_t block_base_addr) | |||
1044 | { | |||
1045 | const size_t num_ranges = ranges.GetSize(); | |||
1046 | for (size_t i = 0; i<num_ranges; ++i) | |||
1047 | { | |||
1048 | const DWARFDebugRanges::Range &range = ranges.GetEntryRef (i); | |||
1049 | const addr_t range_base = range.GetRangeBase(); | |||
1050 | assert (range_base >= block_base_addr)((range_base >= block_base_addr) ? static_cast<void> (0) : __assert_fail ("range_base >= block_base_addr", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1050, __PRETTY_FUNCTION__)); | |||
1051 | block.AddRange(Block::Range (range_base - block_base_addr, range.GetByteSize()));; | |||
1052 | } | |||
1053 | block.FinalizeRanges (); | |||
1054 | } | |||
1055 | ||||
1056 | ||||
1057 | Function * | |||
1058 | SymbolFileDWARF::ParseCompileUnitFunction (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die) | |||
1059 | { | |||
1060 | DWARFDebugRanges::RangeList func_ranges; | |||
1061 | const char *name = NULL__null; | |||
1062 | const char *mangled = NULL__null; | |||
1063 | int decl_file = 0; | |||
1064 | int decl_line = 0; | |||
1065 | int decl_column = 0; | |||
1066 | int call_file = 0; | |||
1067 | int call_line = 0; | |||
1068 | int call_column = 0; | |||
1069 | DWARFExpression frame_base; | |||
1070 | ||||
1071 | assert (die->Tag() == DW_TAG_subprogram)((die->Tag() == DW_TAG_subprogram) ? static_cast<void> (0) : __assert_fail ("die->Tag() == DW_TAG_subprogram", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1071, __PRETTY_FUNCTION__)); | |||
1072 | ||||
1073 | if (die->Tag() != DW_TAG_subprogram) | |||
1074 | return NULL__null; | |||
1075 | ||||
1076 | if (die->GetDIENamesAndRanges (this, | |||
1077 | dwarf_cu, | |||
1078 | name, | |||
1079 | mangled, | |||
1080 | func_ranges, | |||
1081 | decl_file, | |||
1082 | decl_line, | |||
1083 | decl_column, | |||
1084 | call_file, | |||
1085 | call_line, | |||
1086 | call_column, | |||
1087 | &frame_base)) | |||
1088 | { | |||
1089 | // Union of all ranges in the function DIE (if the function is discontiguous) | |||
1090 | AddressRange func_range; | |||
1091 | lldb::addr_t lowest_func_addr = func_ranges.GetMinRangeBase (0); | |||
1092 | lldb::addr_t highest_func_addr = func_ranges.GetMaxRangeEnd (0); | |||
1093 | if (lowest_func_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL) && lowest_func_addr <= highest_func_addr) | |||
1094 | { | |||
1095 | ModuleSP module_sp (m_obj_file->GetModule()); | |||
1096 | func_range.GetBaseAddress().ResolveAddressUsingFileSections (lowest_func_addr, module_sp->GetSectionList()); | |||
1097 | if (func_range.GetBaseAddress().IsValid()) | |||
1098 | func_range.SetByteSize(highest_func_addr - lowest_func_addr); | |||
1099 | } | |||
1100 | ||||
1101 | if (func_range.GetBaseAddress().IsValid()) | |||
1102 | { | |||
1103 | Mangled func_name; | |||
1104 | if (mangled) | |||
1105 | func_name.SetValue(ConstString(mangled), true); | |||
1106 | else if (name) | |||
1107 | func_name.SetValue(ConstString(name), false); | |||
1108 | ||||
1109 | FunctionSP func_sp; | |||
1110 | std::unique_ptr<Declaration> decl_ap; | |||
1111 | if (decl_file != 0 || decl_line != 0 || decl_column != 0) | |||
1112 | decl_ap.reset(new Declaration (sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file), | |||
1113 | decl_line, | |||
1114 | decl_column)); | |||
1115 | ||||
1116 | // Supply the type _only_ if it has already been parsed | |||
1117 | Type *func_type = m_die_to_type.lookup (die); | |||
1118 | ||||
1119 | assert(func_type == NULL || func_type != DIE_IS_BEING_PARSED)((func_type == __null || func_type != ((lldb_private::Type*)1 )) ? static_cast<void> (0) : __assert_fail ("func_type == __null || func_type != ((lldb_private::Type*)1)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1119, __PRETTY_FUNCTION__)); | |||
1120 | ||||
1121 | if (FixupAddress (func_range.GetBaseAddress())) | |||
1122 | { | |||
1123 | const user_id_t func_user_id = MakeUserID(die->GetOffset()); | |||
1124 | func_sp.reset(new Function (sc.comp_unit, | |||
1125 | MakeUserID(func_user_id), // UserID is the DIE offset | |||
1126 | MakeUserID(func_user_id), | |||
1127 | func_name, | |||
1128 | func_type, | |||
1129 | func_range)); // first address range | |||
1130 | ||||
1131 | if (func_sp.get() != NULL__null) | |||
1132 | { | |||
1133 | if (frame_base.IsValid()) | |||
1134 | func_sp->GetFrameBaseExpression() = frame_base; | |||
1135 | sc.comp_unit->AddFunction(func_sp); | |||
1136 | return func_sp.get(); | |||
1137 | } | |||
1138 | } | |||
1139 | } | |||
1140 | } | |||
1141 | return NULL__null; | |||
1142 | } | |||
1143 | ||||
1144 | bool | |||
1145 | SymbolFileDWARF::FixupAddress (Address &addr) | |||
1146 | { | |||
1147 | SymbolFileDWARFDebugMap * debug_map_symfile = GetDebugMapSymfile (); | |||
1148 | if (debug_map_symfile) | |||
1149 | { | |||
1150 | return debug_map_symfile->LinkOSOAddress(addr); | |||
1151 | } | |||
1152 | // This is a normal DWARF file, no address fixups need to happen | |||
1153 | return true; | |||
1154 | } | |||
1155 | lldb::LanguageType | |||
1156 | SymbolFileDWARF::ParseCompileUnitLanguage (const SymbolContext& sc) | |||
1157 | { | |||
1158 | assert (sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1158, __PRETTY_FUNCTION__)); | |||
1159 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||
1160 | if (dwarf_cu) | |||
1161 | { | |||
1162 | const DWARFDebugInfoEntry *die = dwarf_cu->GetCompileUnitDIEOnly(); | |||
1163 | if (die) | |||
1164 | { | |||
1165 | const uint32_t language = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_language, 0); | |||
1166 | if (language) | |||
1167 | return (lldb::LanguageType)language; | |||
1168 | } | |||
1169 | } | |||
1170 | return eLanguageTypeUnknown; | |||
1171 | } | |||
1172 | ||||
1173 | size_t | |||
1174 | SymbolFileDWARF::ParseCompileUnitFunctions(const SymbolContext &sc) | |||
1175 | { | |||
1176 | assert (sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1176, __PRETTY_FUNCTION__)); | |||
1177 | size_t functions_added = 0; | |||
1178 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||
1179 | if (dwarf_cu) | |||
1180 | { | |||
1181 | DWARFDIECollection function_dies; | |||
1182 | const size_t num_functions = dwarf_cu->AppendDIEsWithTag (DW_TAG_subprogram, function_dies); | |||
1183 | size_t func_idx; | |||
1184 | for (func_idx = 0; func_idx < num_functions; ++func_idx) | |||
1185 | { | |||
1186 | const DWARFDebugInfoEntry *die = function_dies.GetDIEPtrAtIndex(func_idx); | |||
1187 | if (sc.comp_unit->FindFunctionByUID (MakeUserID(die->GetOffset())).get() == NULL__null) | |||
1188 | { | |||
1189 | if (ParseCompileUnitFunction(sc, dwarf_cu, die)) | |||
1190 | ++functions_added; | |||
1191 | } | |||
1192 | } | |||
1193 | //FixupTypes(); | |||
1194 | } | |||
1195 | return functions_added; | |||
1196 | } | |||
1197 | ||||
1198 | bool | |||
1199 | SymbolFileDWARF::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList& support_files) | |||
1200 | { | |||
1201 | assert (sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1201, __PRETTY_FUNCTION__)); | |||
1202 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||
1203 | if (dwarf_cu) | |||
1204 | { | |||
1205 | const DWARFDebugInfoEntry * cu_die = dwarf_cu->GetCompileUnitDIEOnly(); | |||
1206 | ||||
1207 | if (cu_die) | |||
1208 | { | |||
1209 | const char * cu_comp_dir = cu_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_comp_dir, NULL__null); | |||
1210 | ||||
1211 | // DWARF2/3 suggests the form hostname:pathname for compilation directory. | |||
1212 | // Remove the host part if present. | |||
1213 | cu_comp_dir = removeHostnameFromPathname(cu_comp_dir); | |||
1214 | ||||
1215 | dw_offset_t stmt_list = cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||
1216 | ||||
1217 | // All file indexes in DWARF are one based and a file of index zero is | |||
1218 | // supposed to be the compile unit itself. | |||
1219 | support_files.Append (*sc.comp_unit); | |||
1220 | ||||
1221 | return DWARFDebugLine::ParseSupportFiles(sc.comp_unit->GetModule(), get_debug_line_data(), cu_comp_dir, stmt_list, support_files); | |||
1222 | } | |||
1223 | } | |||
1224 | return false; | |||
1225 | } | |||
1226 | ||||
1227 | struct ParseDWARFLineTableCallbackInfo | |||
1228 | { | |||
1229 | LineTable* line_table; | |||
1230 | std::unique_ptr<LineSequence> sequence_ap; | |||
1231 | }; | |||
1232 | ||||
1233 | //---------------------------------------------------------------------- | |||
1234 | // ParseStatementTableCallback | |||
1235 | //---------------------------------------------------------------------- | |||
1236 | static void | |||
1237 | ParseDWARFLineTableCallback(dw_offset_t offset, const DWARFDebugLine::State& state, void* userData) | |||
1238 | { | |||
1239 | if (state.row == DWARFDebugLine::State::StartParsingLineTable) | |||
1240 | { | |||
1241 | // Just started parsing the line table | |||
1242 | } | |||
1243 | else if (state.row == DWARFDebugLine::State::DoneParsingLineTable) | |||
1244 | { | |||
1245 | // Done parsing line table, nothing to do for the cleanup | |||
1246 | } | |||
1247 | else | |||
1248 | { | |||
1249 | ParseDWARFLineTableCallbackInfo* info = (ParseDWARFLineTableCallbackInfo*)userData; | |||
1250 | LineTable* line_table = info->line_table; | |||
1251 | ||||
1252 | // If this is our first time here, we need to create a | |||
1253 | // sequence container. | |||
1254 | if (!info->sequence_ap.get()) | |||
1255 | { | |||
1256 | info->sequence_ap.reset(line_table->CreateLineSequenceContainer()); | |||
1257 | assert(info->sequence_ap.get())((info->sequence_ap.get()) ? static_cast<void> (0) : __assert_fail ("info->sequence_ap.get()", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1257, __PRETTY_FUNCTION__)); | |||
1258 | } | |||
1259 | line_table->AppendLineEntryToSequence (info->sequence_ap.get(), | |||
1260 | state.address, | |||
1261 | state.line, | |||
1262 | state.column, | |||
1263 | state.file, | |||
1264 | state.is_stmt, | |||
1265 | state.basic_block, | |||
1266 | state.prologue_end, | |||
1267 | state.epilogue_begin, | |||
1268 | state.end_sequence); | |||
1269 | if (state.end_sequence) | |||
1270 | { | |||
1271 | // First, put the current sequence into the line table. | |||
1272 | line_table->InsertSequence(info->sequence_ap.get()); | |||
1273 | // Then, empty it to prepare for the next sequence. | |||
1274 | info->sequence_ap->Clear(); | |||
1275 | } | |||
1276 | } | |||
1277 | } | |||
1278 | ||||
1279 | bool | |||
1280 | SymbolFileDWARF::ParseCompileUnitLineTable (const SymbolContext &sc) | |||
1281 | { | |||
1282 | assert (sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1282, __PRETTY_FUNCTION__)); | |||
1283 | if (sc.comp_unit->GetLineTable() != NULL__null) | |||
1284 | return true; | |||
1285 | ||||
1286 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||
1287 | if (dwarf_cu) | |||
1288 | { | |||
1289 | const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->GetCompileUnitDIEOnly(); | |||
1290 | if (dwarf_cu_die) | |||
1291 | { | |||
1292 | const dw_offset_t cu_line_offset = dwarf_cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||
1293 | if (cu_line_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
1294 | { | |||
1295 | std::unique_ptr<LineTable> line_table_ap(new LineTable(sc.comp_unit)); | |||
1296 | if (line_table_ap.get()) | |||
1297 | { | |||
1298 | ParseDWARFLineTableCallbackInfo info; | |||
1299 | info.line_table = line_table_ap.get(); | |||
1300 | lldb::offset_t offset = cu_line_offset; | |||
1301 | DWARFDebugLine::ParseStatementTable(get_debug_line_data(), &offset, ParseDWARFLineTableCallback, &info); | |||
1302 | if (m_debug_map_symfile) | |||
1303 | { | |||
1304 | // We have an object file that has a line table with addresses | |||
1305 | // that are not linked. We need to link the line table and convert | |||
1306 | // the addresses that are relative to the .o file into addresses | |||
1307 | // for the main executable. | |||
1308 | sc.comp_unit->SetLineTable (m_debug_map_symfile->LinkOSOLineTable (this, line_table_ap.get())); | |||
1309 | } | |||
1310 | else | |||
1311 | { | |||
1312 | sc.comp_unit->SetLineTable(line_table_ap.release()); | |||
1313 | return true; | |||
1314 | } | |||
1315 | } | |||
1316 | } | |||
1317 | } | |||
1318 | } | |||
1319 | return false; | |||
1320 | } | |||
1321 | ||||
1322 | size_t | |||
1323 | SymbolFileDWARF::ParseFunctionBlocks | |||
1324 | ( | |||
1325 | const SymbolContext& sc, | |||
1326 | Block *parent_block, | |||
1327 | DWARFCompileUnit* dwarf_cu, | |||
1328 | const DWARFDebugInfoEntry *die, | |||
1329 | addr_t subprogram_low_pc, | |||
1330 | uint32_t depth | |||
1331 | ) | |||
1332 | { | |||
1333 | size_t blocks_added = 0; | |||
1334 | while (die != NULL__null) | |||
1335 | { | |||
1336 | dw_tag_t tag = die->Tag(); | |||
1337 | ||||
1338 | switch (tag) | |||
1339 | { | |||
1340 | case DW_TAG_inlined_subroutine: | |||
1341 | case DW_TAG_subprogram: | |||
1342 | case DW_TAG_lexical_block: | |||
1343 | { | |||
1344 | Block *block = NULL__null; | |||
1345 | if (tag == DW_TAG_subprogram) | |||
1346 | { | |||
1347 | // Skip any DW_TAG_subprogram DIEs that are inside | |||
1348 | // of a normal or inlined functions. These will be | |||
1349 | // parsed on their own as separate entities. | |||
1350 | ||||
1351 | if (depth > 0) | |||
1352 | break; | |||
1353 | ||||
1354 | block = parent_block; | |||
1355 | } | |||
1356 | else | |||
1357 | { | |||
1358 | BlockSP block_sp(new Block (MakeUserID(die->GetOffset()))); | |||
1359 | parent_block->AddChild(block_sp); | |||
1360 | block = block_sp.get(); | |||
1361 | } | |||
1362 | DWARFDebugRanges::RangeList ranges; | |||
1363 | const char *name = NULL__null; | |||
1364 | const char *mangled_name = NULL__null; | |||
1365 | ||||
1366 | int decl_file = 0; | |||
1367 | int decl_line = 0; | |||
1368 | int decl_column = 0; | |||
1369 | int call_file = 0; | |||
1370 | int call_line = 0; | |||
1371 | int call_column = 0; | |||
1372 | if (die->GetDIENamesAndRanges (this, | |||
1373 | dwarf_cu, | |||
1374 | name, | |||
1375 | mangled_name, | |||
1376 | ranges, | |||
1377 | decl_file, decl_line, decl_column, | |||
1378 | call_file, call_line, call_column)) | |||
1379 | { | |||
1380 | if (tag == DW_TAG_subprogram) | |||
1381 | { | |||
1382 | assert (subprogram_low_pc == LLDB_INVALID_ADDRESS)((subprogram_low_pc == (18446744073709551615UL)) ? static_cast <void> (0) : __assert_fail ("subprogram_low_pc == (18446744073709551615UL)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 1382, __PRETTY_FUNCTION__)); | |||
1383 | subprogram_low_pc = ranges.GetMinRangeBase(0); | |||
1384 | } | |||
1385 | else if (tag == DW_TAG_inlined_subroutine) | |||
1386 | { | |||
1387 | // We get called here for inlined subroutines in two ways. | |||
1388 | // The first time is when we are making the Function object | |||
1389 | // for this inlined concrete instance. Since we're creating a top level block at | |||
1390 | // here, the subprogram_low_pc will be LLDB_INVALID_ADDRESS. So we need to | |||
1391 | // adjust the containing address. | |||
1392 | // The second time is when we are parsing the blocks inside the function that contains | |||
1393 | // the inlined concrete instance. Since these will be blocks inside the containing "real" | |||
1394 | // function the offset will be for that function. | |||
1395 | if (subprogram_low_pc == LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||
1396 | { | |||
1397 | subprogram_low_pc = ranges.GetMinRangeBase(0); | |||
1398 | } | |||
1399 | } | |||
1400 | ||||
1401 | AddRangesToBlock (*block, ranges, subprogram_low_pc); | |||
1402 | ||||
1403 | if (tag != DW_TAG_subprogram && (name != NULL__null || mangled_name != NULL__null)) | |||
1404 | { | |||
1405 | std::unique_ptr<Declaration> decl_ap; | |||
1406 | if (decl_file != 0 || decl_line != 0 || decl_column != 0) | |||
1407 | decl_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(decl_file), | |||
1408 | decl_line, decl_column)); | |||
1409 | ||||
1410 | std::unique_ptr<Declaration> call_ap; | |||
1411 | if (call_file != 0 || call_line != 0 || call_column != 0) | |||
1412 | call_ap.reset(new Declaration(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(call_file), | |||
1413 | call_line, call_column)); | |||
1414 | ||||
1415 | block->SetInlinedFunctionInfo (name, mangled_name, decl_ap.get(), call_ap.get()); | |||
1416 | } | |||
1417 | ||||
1418 | ++blocks_added; | |||
1419 | ||||
1420 | if (die->HasChildren()) | |||
1421 | { | |||
1422 | blocks_added += ParseFunctionBlocks (sc, | |||
1423 | block, | |||
1424 | dwarf_cu, | |||
1425 | die->GetFirstChild(), | |||
1426 | subprogram_low_pc, | |||
1427 | depth + 1); | |||
1428 | } | |||
1429 | } | |||
1430 | } | |||
1431 | break; | |||
1432 | default: | |||
1433 | break; | |||
1434 | } | |||
1435 | ||||
1436 | // Only parse siblings of the block if we are not at depth zero. A depth | |||
1437 | // of zero indicates we are currently parsing the top level | |||
1438 | // DW_TAG_subprogram DIE | |||
1439 | ||||
1440 | if (depth == 0) | |||
1441 | die = NULL__null; | |||
1442 | else | |||
1443 | die = die->GetSibling(); | |||
1444 | } | |||
1445 | return blocks_added; | |||
1446 | } | |||
1447 | ||||
1448 | bool | |||
1449 | SymbolFileDWARF::ParseTemplateDIE (DWARFCompileUnit* dwarf_cu, | |||
1450 | const DWARFDebugInfoEntry *die, | |||
1451 | ClangASTContext::TemplateParameterInfos &template_param_infos) | |||
1452 | { | |||
1453 | const dw_tag_t tag = die->Tag(); | |||
1454 | ||||
1455 | switch (tag) | |||
1456 | { | |||
1457 | case DW_TAG_template_type_parameter: | |||
1458 | case DW_TAG_template_value_parameter: | |||
1459 | { | |||
1460 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||
1461 | ||||
1462 | DWARFDebugInfoEntry::Attributes attributes; | |||
1463 | const size_t num_attributes = die->GetAttributes (this, | |||
1464 | dwarf_cu, | |||
1465 | fixed_form_sizes, | |||
1466 | attributes); | |||
1467 | const char *name = NULL__null; | |||
1468 | Type *lldb_type = NULL__null; | |||
1469 | ClangASTType clang_type; | |||
1470 | uint64_t uval64 = 0; | |||
1471 | bool uval64_valid = false; | |||
1472 | if (num_attributes > 0) | |||
1473 | { | |||
1474 | DWARFFormValue form_value; | |||
1475 | for (size_t i=0; i<num_attributes; ++i) | |||
1476 | { | |||
1477 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
1478 | ||||
1479 | switch (attr) | |||
1480 | { | |||
1481 | case DW_AT_name: | |||
1482 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
1483 | name = form_value.AsCString(&get_debug_str_data()); | |||
1484 | break; | |||
1485 | ||||
1486 | case DW_AT_type: | |||
1487 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
1488 | { | |||
1489 | const dw_offset_t type_die_offset = form_value.Reference(dwarf_cu); | |||
1490 | lldb_type = ResolveTypeUID(type_die_offset); | |||
1491 | if (lldb_type) | |||
1492 | clang_type = lldb_type->GetClangForwardType(); | |||
1493 | } | |||
1494 | break; | |||
1495 | ||||
1496 | case DW_AT_const_value: | |||
1497 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
1498 | { | |||
1499 | uval64_valid = true; | |||
1500 | uval64 = form_value.Unsigned(); | |||
1501 | } | |||
1502 | break; | |||
1503 | default: | |||
1504 | break; | |||
1505 | } | |||
1506 | } | |||
1507 | ||||
1508 | clang::ASTContext *ast = GetClangASTContext().getASTContext(); | |||
1509 | if (!clang_type) | |||
1510 | clang_type = GetClangASTContext().GetBasicType(eBasicTypeVoid); | |||
1511 | ||||
1512 | if (clang_type) | |||
1513 | { | |||
1514 | bool is_signed = false; | |||
1515 | if (name && name[0]) | |||
1516 | template_param_infos.names.push_back(name); | |||
1517 | else | |||
1518 | template_param_infos.names.push_back(NULL__null); | |||
1519 | ||||
1520 | if (tag == DW_TAG_template_value_parameter && | |||
1521 | lldb_type != NULL__null && | |||
1522 | clang_type.IsIntegerType (is_signed) && | |||
1523 | uval64_valid) | |||
1524 | { | |||
1525 | llvm::APInt apint (lldb_type->GetByteSize() * 8, uval64, is_signed); | |||
1526 | template_param_infos.args.push_back (clang::TemplateArgument (*ast, | |||
1527 | llvm::APSInt(apint), | |||
1528 | clang_type.GetQualType())); | |||
1529 | } | |||
1530 | else | |||
1531 | { | |||
1532 | template_param_infos.args.push_back (clang::TemplateArgument (clang_type.GetQualType())); | |||
1533 | } | |||
1534 | } | |||
1535 | else | |||
1536 | { | |||
1537 | return false; | |||
1538 | } | |||
1539 | ||||
1540 | } | |||
1541 | } | |||
1542 | return true; | |||
1543 | ||||
1544 | default: | |||
1545 | break; | |||
1546 | } | |||
1547 | return false; | |||
1548 | } | |||
1549 | ||||
1550 | bool | |||
1551 | SymbolFileDWARF::ParseTemplateParameterInfos (DWARFCompileUnit* dwarf_cu, | |||
1552 | const DWARFDebugInfoEntry *parent_die, | |||
1553 | ClangASTContext::TemplateParameterInfos &template_param_infos) | |||
1554 | { | |||
1555 | ||||
1556 | if (parent_die == NULL__null) | |||
1557 | return false; | |||
1558 | ||||
1559 | Args template_parameter_names; | |||
1560 | for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); | |||
1561 | die != NULL__null; | |||
1562 | die = die->GetSibling()) | |||
1563 | { | |||
1564 | const dw_tag_t tag = die->Tag(); | |||
1565 | ||||
1566 | switch (tag) | |||
1567 | { | |||
1568 | case DW_TAG_template_type_parameter: | |||
1569 | case DW_TAG_template_value_parameter: | |||
1570 | ParseTemplateDIE (dwarf_cu, die, template_param_infos); | |||
1571 | break; | |||
1572 | ||||
1573 | default: | |||
1574 | break; | |||
1575 | } | |||
1576 | } | |||
1577 | if (template_param_infos.args.empty()) | |||
1578 | return false; | |||
1579 | return template_param_infos.args.size() == template_param_infos.names.size(); | |||
1580 | } | |||
1581 | ||||
1582 | clang::ClassTemplateDecl * | |||
1583 | SymbolFileDWARF::ParseClassTemplateDecl (clang::DeclContext *decl_ctx, | |||
1584 | lldb::AccessType access_type, | |||
1585 | const char *parent_name, | |||
1586 | int tag_decl_kind, | |||
1587 | const ClangASTContext::TemplateParameterInfos &template_param_infos) | |||
1588 | { | |||
1589 | if (template_param_infos.IsValid()) | |||
1590 | { | |||
1591 | std::string template_basename(parent_name); | |||
1592 | template_basename.erase (template_basename.find('<')); | |||
1593 | ClangASTContext &ast = GetClangASTContext(); | |||
1594 | ||||
1595 | return ast.CreateClassTemplateDecl (decl_ctx, | |||
1596 | access_type, | |||
1597 | template_basename.c_str(), | |||
1598 | tag_decl_kind, | |||
1599 | template_param_infos); | |||
1600 | } | |||
1601 | return NULL__null; | |||
1602 | } | |||
1603 | ||||
1604 | class SymbolFileDWARF::DelayedAddObjCClassProperty | |||
1605 | { | |||
1606 | public: | |||
1607 | DelayedAddObjCClassProperty | |||
1608 | ( | |||
1609 | const ClangASTType &class_opaque_type, | |||
1610 | const char *property_name, | |||
1611 | const ClangASTType &property_opaque_type, // The property type is only required if you don't have an ivar decl | |||
1612 | clang::ObjCIvarDecl *ivar_decl, | |||
1613 | const char *property_setter_name, | |||
1614 | const char *property_getter_name, | |||
1615 | uint32_t property_attributes, | |||
1616 | const ClangASTMetadata *metadata | |||
1617 | ) : | |||
1618 | m_class_opaque_type (class_opaque_type), | |||
1619 | m_property_name (property_name), | |||
1620 | m_property_opaque_type (property_opaque_type), | |||
1621 | m_ivar_decl (ivar_decl), | |||
1622 | m_property_setter_name (property_setter_name), | |||
1623 | m_property_getter_name (property_getter_name), | |||
1624 | m_property_attributes (property_attributes) | |||
1625 | { | |||
1626 | if (metadata != NULL__null) | |||
1627 | { | |||
1628 | m_metadata_ap.reset(new ClangASTMetadata()); | |||
1629 | *m_metadata_ap = *metadata; | |||
1630 | } | |||
1631 | } | |||
1632 | ||||
1633 | DelayedAddObjCClassProperty (const DelayedAddObjCClassProperty &rhs) | |||
1634 | { | |||
1635 | *this = rhs; | |||
1636 | } | |||
1637 | ||||
1638 | DelayedAddObjCClassProperty& operator= (const DelayedAddObjCClassProperty &rhs) | |||
1639 | { | |||
1640 | m_class_opaque_type = rhs.m_class_opaque_type; | |||
1641 | m_property_name = rhs.m_property_name; | |||
1642 | m_property_opaque_type = rhs.m_property_opaque_type; | |||
1643 | m_ivar_decl = rhs.m_ivar_decl; | |||
1644 | m_property_setter_name = rhs.m_property_setter_name; | |||
1645 | m_property_getter_name = rhs.m_property_getter_name; | |||
1646 | m_property_attributes = rhs.m_property_attributes; | |||
1647 | ||||
1648 | if (rhs.m_metadata_ap.get()) | |||
1649 | { | |||
1650 | m_metadata_ap.reset (new ClangASTMetadata()); | |||
1651 | *m_metadata_ap = *rhs.m_metadata_ap; | |||
1652 | } | |||
1653 | return *this; | |||
1654 | } | |||
1655 | ||||
1656 | bool | |||
1657 | Finalize() | |||
1658 | { | |||
1659 | return m_class_opaque_type.AddObjCClassProperty (m_property_name, | |||
1660 | m_property_opaque_type, | |||
1661 | m_ivar_decl, | |||
1662 | m_property_setter_name, | |||
1663 | m_property_getter_name, | |||
1664 | m_property_attributes, | |||
1665 | m_metadata_ap.get()); | |||
1666 | } | |||
1667 | private: | |||
1668 | ClangASTType m_class_opaque_type; | |||
1669 | const char *m_property_name; | |||
1670 | ClangASTType m_property_opaque_type; | |||
1671 | clang::ObjCIvarDecl *m_ivar_decl; | |||
1672 | const char *m_property_setter_name; | |||
1673 | const char *m_property_getter_name; | |||
1674 | uint32_t m_property_attributes; | |||
1675 | std::unique_ptr<ClangASTMetadata> m_metadata_ap; | |||
1676 | }; | |||
1677 | ||||
1678 | struct BitfieldInfo | |||
1679 | { | |||
1680 | uint64_t bit_size; | |||
1681 | uint64_t bit_offset; | |||
1682 | ||||
1683 | BitfieldInfo () : | |||
1684 | bit_size (LLDB_INVALID_ADDRESS(18446744073709551615UL)), | |||
1685 | bit_offset (LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||
1686 | { | |||
1687 | } | |||
1688 | ||||
1689 | void | |||
1690 | Clear() | |||
1691 | { | |||
1692 | bit_size = LLDB_INVALID_ADDRESS(18446744073709551615UL); | |||
1693 | bit_offset = LLDB_INVALID_ADDRESS(18446744073709551615UL); | |||
1694 | } | |||
1695 | ||||
1696 | bool IsValid () | |||
1697 | { | |||
1698 | return (bit_size != LLDB_INVALID_ADDRESS(18446744073709551615UL)) && | |||
1699 | (bit_offset != LLDB_INVALID_ADDRESS(18446744073709551615UL)); | |||
1700 | } | |||
1701 | }; | |||
1702 | ||||
1703 | ||||
1704 | bool | |||
1705 | SymbolFileDWARF::ClassOrStructIsVirtual (DWARFCompileUnit* dwarf_cu, | |||
1706 | const DWARFDebugInfoEntry *parent_die) | |||
1707 | { | |||
1708 | if (parent_die) | |||
1709 | { | |||
1710 | for (const DWARFDebugInfoEntry *die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||
1711 | { | |||
1712 | dw_tag_t tag = die->Tag(); | |||
1713 | bool check_virtuality = false; | |||
1714 | switch (tag) | |||
1715 | { | |||
1716 | case DW_TAG_inheritance: | |||
1717 | case DW_TAG_subprogram: | |||
1718 | check_virtuality = true; | |||
1719 | break; | |||
1720 | default: | |||
1721 | break; | |||
1722 | } | |||
1723 | if (check_virtuality) | |||
1724 | { | |||
1725 | if (die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_virtuality, 0) != 0) | |||
1726 | return true; | |||
1727 | } | |||
1728 | } | |||
1729 | } | |||
1730 | return false; | |||
1731 | } | |||
1732 | ||||
1733 | size_t | |||
1734 | SymbolFileDWARF::ParseChildMembers | |||
1735 | ( | |||
1736 | const SymbolContext& sc, | |||
1737 | DWARFCompileUnit* dwarf_cu, | |||
1738 | const DWARFDebugInfoEntry *parent_die, | |||
1739 | ClangASTType &class_clang_type, | |||
1740 | const LanguageType class_language, | |||
1741 | std::vector<clang::CXXBaseSpecifier *>& base_classes, | |||
1742 | std::vector<int>& member_accessibilities, | |||
1743 | DWARFDIECollection& member_function_dies, | |||
1744 | DelayedPropertyList& delayed_properties, | |||
1745 | AccessType& default_accessibility, | |||
1746 | bool &is_a_class, | |||
1747 | LayoutInfo &layout_info | |||
1748 | ) | |||
1749 | { | |||
1750 | if (parent_die == NULL__null) | |||
1751 | return 0; | |||
1752 | ||||
1753 | size_t count = 0; | |||
1754 | const DWARFDebugInfoEntry *die; | |||
1755 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||
1756 | uint32_t member_idx = 0; | |||
1757 | BitfieldInfo last_field_info; | |||
1758 | ModuleSP module = GetObjectFile()->GetModule(); | |||
1759 | ||||
1760 | for (die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||
1761 | { | |||
1762 | dw_tag_t tag = die->Tag(); | |||
1763 | ||||
1764 | switch (tag) | |||
1765 | { | |||
1766 | case DW_TAG_member: | |||
1767 | case DW_TAG_APPLE_property: | |||
1768 | { | |||
1769 | DWARFDebugInfoEntry::Attributes attributes; | |||
1770 | const size_t num_attributes = die->GetAttributes (this, | |||
1771 | dwarf_cu, | |||
1772 | fixed_form_sizes, | |||
1773 | attributes); | |||
1774 | if (num_attributes > 0) | |||
1775 | { | |||
1776 | Declaration decl; | |||
1777 | //DWARFExpression location; | |||
1778 | const char *name = NULL__null; | |||
1779 | const char *prop_name = NULL__null; | |||
1780 | const char *prop_getter_name = NULL__null; | |||
1781 | const char *prop_setter_name = NULL__null; | |||
1782 | uint32_t prop_attributes = 0; | |||
1783 | ||||
1784 | ||||
1785 | bool is_artificial = false; | |||
1786 | lldb::user_id_t encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||
1787 | AccessType accessibility = eAccessNone; | |||
1788 | uint32_t member_byte_offset = UINT32_MAX(4294967295U); | |||
1789 | size_t byte_size = 0; | |||
1790 | size_t bit_offset = 0; | |||
1791 | size_t bit_size = 0; | |||
1792 | bool is_external = false; // On DW_TAG_members, this means the member is static | |||
1793 | uint32_t i; | |||
1794 | for (i=0; i<num_attributes && !is_artificial; ++i) | |||
1795 | { | |||
1796 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
1797 | DWARFFormValue form_value; | |||
1798 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
1799 | { | |||
1800 | switch (attr) | |||
1801 | { | |||
1802 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
1803 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
1804 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
1805 | case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break; | |||
1806 | case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break; | |||
1807 | case DW_AT_bit_offset: bit_offset = form_value.Unsigned(); break; | |||
1808 | case DW_AT_bit_size: bit_size = form_value.Unsigned(); break; | |||
1809 | case DW_AT_byte_size: byte_size = form_value.Unsigned(); break; | |||
1810 | case DW_AT_data_member_location: | |||
1811 | if (form_value.BlockData()) | |||
1812 | { | |||
1813 | Value initialValue(0); | |||
1814 | Value memberOffset(0); | |||
1815 | const DWARFDataExtractor& debug_info_data = get_debug_info_data(); | |||
1816 | uint32_t block_length = form_value.Unsigned(); | |||
1817 | uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart(); | |||
1818 | if (DWARFExpression::Evaluate(NULL__null, // ExecutionContext * | |||
1819 | NULL__null, // ClangExpressionVariableList * | |||
1820 | NULL__null, // ClangExpressionDeclMap * | |||
1821 | NULL__null, // RegisterContext * | |||
1822 | module, | |||
1823 | debug_info_data, | |||
1824 | block_offset, | |||
1825 | block_length, | |||
1826 | eRegisterKindDWARF, | |||
1827 | &initialValue, | |||
1828 | memberOffset, | |||
1829 | NULL__null)) | |||
1830 | { | |||
1831 | member_byte_offset = memberOffset.ResolveValue(NULL__null).UInt(); | |||
1832 | } | |||
1833 | } | |||
1834 | else | |||
1835 | { | |||
1836 | // With DWARF 3 and later, if the value is an integer constant, | |||
1837 | // this form value is the offset in bytes from the beginning | |||
1838 | // of the containing entity. | |||
1839 | member_byte_offset = form_value.Unsigned(); | |||
1840 | } | |||
1841 | break; | |||
1842 | ||||
1843 | case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType (form_value.Unsigned()); break; | |||
1844 | case DW_AT_artificial: is_artificial = form_value.Boolean(); break; | |||
1845 | case DW_AT_APPLE_property_name: prop_name = form_value.AsCString(&get_debug_str_data()); break; | |||
1846 | case DW_AT_APPLE_property_getter: prop_getter_name = form_value.AsCString(&get_debug_str_data()); break; | |||
1847 | case DW_AT_APPLE_property_setter: prop_setter_name = form_value.AsCString(&get_debug_str_data()); break; | |||
1848 | case DW_AT_APPLE_property_attribute: prop_attributes = form_value.Unsigned(); break; | |||
1849 | case DW_AT_external: is_external = form_value.Boolean(); break; | |||
1850 | ||||
1851 | default: | |||
1852 | case DW_AT_declaration: | |||
1853 | case DW_AT_description: | |||
1854 | case DW_AT_mutable: | |||
1855 | case DW_AT_visibility: | |||
1856 | case DW_AT_sibling: | |||
1857 | break; | |||
1858 | } | |||
1859 | } | |||
1860 | } | |||
1861 | ||||
1862 | if (prop_name) | |||
1863 | { | |||
1864 | ConstString fixed_getter; | |||
1865 | ConstString fixed_setter; | |||
1866 | ||||
1867 | // Check if the property getter/setter were provided as full | |||
1868 | // names. We want basenames, so we extract them. | |||
1869 | ||||
1870 | if (prop_getter_name && prop_getter_name[0] == '-') | |||
1871 | { | |||
1872 | ObjCLanguageRuntime::MethodName prop_getter_method(prop_getter_name, true); | |||
1873 | prop_getter_name = prop_getter_method.GetSelector().GetCString(); | |||
1874 | } | |||
1875 | ||||
1876 | if (prop_setter_name && prop_setter_name[0] == '-') | |||
1877 | { | |||
1878 | ObjCLanguageRuntime::MethodName prop_setter_method(prop_setter_name, true); | |||
1879 | prop_setter_name = prop_setter_method.GetSelector().GetCString(); | |||
1880 | } | |||
1881 | ||||
1882 | // If the names haven't been provided, they need to be | |||
1883 | // filled in. | |||
1884 | ||||
1885 | if (!prop_getter_name) | |||
1886 | { | |||
1887 | prop_getter_name = prop_name; | |||
1888 | } | |||
1889 | if (!prop_setter_name && prop_name[0] && !(prop_attributes & DW_APPLE_PROPERTY_readonly)) | |||
1890 | { | |||
1891 | StreamString ss; | |||
1892 | ||||
1893 | ss.Printf("set%c%s:", | |||
1894 | toupper(prop_name[0]), | |||
1895 | &prop_name[1]); | |||
1896 | ||||
1897 | fixed_setter.SetCString(ss.GetData()); | |||
1898 | prop_setter_name = fixed_setter.GetCString(); | |||
1899 | } | |||
1900 | } | |||
1901 | ||||
1902 | // Clang has a DWARF generation bug where sometimes it | |||
1903 | // represents fields that are references with bad byte size | |||
1904 | // and bit size/offset information such as: | |||
1905 | // | |||
1906 | // DW_AT_byte_size( 0x00 ) | |||
1907 | // DW_AT_bit_size( 0x40 ) | |||
1908 | // DW_AT_bit_offset( 0xffffffffffffffc0 ) | |||
1909 | // | |||
1910 | // So check the bit offset to make sure it is sane, and if | |||
1911 | // the values are not sane, remove them. If we don't do this | |||
1912 | // then we will end up with a crash if we try to use this | |||
1913 | // type in an expression when clang becomes unhappy with its | |||
1914 | // recycled debug info. | |||
1915 | ||||
1916 | if (bit_offset > 128) | |||
1917 | { | |||
1918 | bit_size = 0; | |||
1919 | bit_offset = 0; | |||
1920 | } | |||
1921 | ||||
1922 | // FIXME: Make Clang ignore Objective-C accessibility for expressions | |||
1923 | if (class_language == eLanguageTypeObjC || | |||
1924 | class_language == eLanguageTypeObjC_plus_plus) | |||
1925 | accessibility = eAccessNone; | |||
1926 | ||||
1927 | if (member_idx == 0 && !is_artificial && name && (strstr (name, "_vptr$") == name)) | |||
1928 | { | |||
1929 | // Not all compilers will mark the vtable pointer | |||
1930 | // member as artificial (llvm-gcc). We can't have | |||
1931 | // the virtual members in our classes otherwise it | |||
1932 | // throws off all child offsets since we end up | |||
1933 | // having and extra pointer sized member in our | |||
1934 | // class layouts. | |||
1935 | is_artificial = true; | |||
1936 | } | |||
1937 | ||||
1938 | // Handle static members | |||
1939 | if (is_external && member_byte_offset == UINT32_MAX(4294967295U)) | |||
1940 | { | |||
1941 | Type *var_type = ResolveTypeUID(encoding_uid); | |||
1942 | ||||
1943 | if (var_type) | |||
1944 | { | |||
1945 | if (accessibility == eAccessNone) | |||
1946 | accessibility = eAccessPublic; | |||
1947 | class_clang_type.AddVariableToRecordType (name, | |||
1948 | var_type->GetClangLayoutType(), | |||
1949 | accessibility); | |||
1950 | } | |||
1951 | break; | |||
1952 | } | |||
1953 | ||||
1954 | if (is_artificial == false) | |||
1955 | { | |||
1956 | Type *member_type = ResolveTypeUID(encoding_uid); | |||
1957 | ||||
1958 | clang::FieldDecl *field_decl = NULL__null; | |||
1959 | if (tag == DW_TAG_member) | |||
1960 | { | |||
1961 | if (member_type) | |||
1962 | { | |||
1963 | if (accessibility == eAccessNone) | |||
1964 | accessibility = default_accessibility; | |||
1965 | member_accessibilities.push_back(accessibility); | |||
1966 | ||||
1967 | uint64_t field_bit_offset = (member_byte_offset == UINT32_MAX(4294967295U) ? 0 : (member_byte_offset * 8)); | |||
1968 | if (bit_size > 0) | |||
1969 | { | |||
1970 | ||||
1971 | BitfieldInfo this_field_info; | |||
1972 | this_field_info.bit_offset = field_bit_offset; | |||
1973 | this_field_info.bit_size = bit_size; | |||
1974 | ||||
1975 | ///////////////////////////////////////////////////////////// | |||
1976 | // How to locate a field given the DWARF debug information | |||
1977 | // | |||
1978 | // AT_byte_size indicates the size of the word in which the | |||
1979 | // bit offset must be interpreted. | |||
1980 | // | |||
1981 | // AT_data_member_location indicates the byte offset of the | |||
1982 | // word from the base address of the structure. | |||
1983 | // | |||
1984 | // AT_bit_offset indicates how many bits into the word | |||
1985 | // (according to the host endianness) the low-order bit of | |||
1986 | // the field starts. AT_bit_offset can be negative. | |||
1987 | // | |||
1988 | // AT_bit_size indicates the size of the field in bits. | |||
1989 | ///////////////////////////////////////////////////////////// | |||
1990 | ||||
1991 | if (byte_size == 0) | |||
1992 | byte_size = member_type->GetByteSize(); | |||
1993 | ||||
1994 | if (GetObjectFile()->GetByteOrder() == eByteOrderLittle) | |||
1995 | { | |||
1996 | this_field_info.bit_offset += byte_size * 8; | |||
1997 | this_field_info.bit_offset -= (bit_offset + bit_size); | |||
1998 | } | |||
1999 | else | |||
2000 | { | |||
2001 | this_field_info.bit_offset += bit_offset; | |||
2002 | } | |||
2003 | ||||
2004 | // Update the field bit offset we will report for layout | |||
2005 | field_bit_offset = this_field_info.bit_offset; | |||
2006 | ||||
2007 | // If the member to be emitted did not start on a character boundary and there is | |||
2008 | // empty space between the last field and this one, then we need to emit an | |||
2009 | // anonymous member filling up the space up to its start. There are three cases | |||
2010 | // here: | |||
2011 | // | |||
2012 | // 1 If the previous member ended on a character boundary, then we can emit an | |||
2013 | // anonymous member starting at the most recent character boundary. | |||
2014 | // | |||
2015 | // 2 If the previous member did not end on a character boundary and the distance | |||
2016 | // from the end of the previous member to the current member is less than a | |||
2017 | // word width, then we can emit an anonymous member starting right after the | |||
2018 | // previous member and right before this member. | |||
2019 | // | |||
2020 | // 3 If the previous member did not end on a character boundary and the distance | |||
2021 | // from the end of the previous member to the current member is greater than | |||
2022 | // or equal a word width, then we act as in Case 1. | |||
2023 | ||||
2024 | const uint64_t character_width = 8; | |||
2025 | const uint64_t word_width = 32; | |||
2026 | ||||
2027 | // Objective-C has invalid DW_AT_bit_offset values in older versions | |||
2028 | // of clang, so we have to be careful and only insert unnamed bitfields | |||
2029 | // if we have a new enough clang. | |||
2030 | bool detect_unnamed_bitfields = true; | |||
2031 | ||||
2032 | if (class_language == eLanguageTypeObjC || class_language == eLanguageTypeObjC_plus_plus) | |||
2033 | detect_unnamed_bitfields = dwarf_cu->Supports_unnamed_objc_bitfields (); | |||
2034 | ||||
2035 | if (detect_unnamed_bitfields) | |||
2036 | { | |||
2037 | BitfieldInfo anon_field_info; | |||
2038 | ||||
2039 | if ((this_field_info.bit_offset % character_width) != 0) // not char aligned | |||
2040 | { | |||
2041 | uint64_t last_field_end = 0; | |||
2042 | ||||
2043 | if (last_field_info.IsValid()) | |||
2044 | last_field_end = last_field_info.bit_offset + last_field_info.bit_size; | |||
2045 | ||||
2046 | if (this_field_info.bit_offset != last_field_end) | |||
2047 | { | |||
2048 | if (((last_field_end % character_width) == 0) || // case 1 | |||
2049 | (this_field_info.bit_offset - last_field_end >= word_width)) // case 3 | |||
2050 | { | |||
2051 | anon_field_info.bit_size = this_field_info.bit_offset % character_width; | |||
2052 | anon_field_info.bit_offset = this_field_info.bit_offset - anon_field_info.bit_size; | |||
2053 | } | |||
2054 | else // case 2 | |||
2055 | { | |||
2056 | anon_field_info.bit_size = this_field_info.bit_offset - last_field_end; | |||
2057 | anon_field_info.bit_offset = last_field_end; | |||
2058 | } | |||
2059 | } | |||
2060 | } | |||
2061 | ||||
2062 | if (anon_field_info.IsValid()) | |||
2063 | { | |||
2064 | clang::FieldDecl *unnamed_bitfield_decl = class_clang_type.AddFieldToRecordType (NULL__null, | |||
2065 | GetClangASTContext().GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, word_width), | |||
2066 | accessibility, | |||
2067 | anon_field_info.bit_size); | |||
2068 | ||||
2069 | layout_info.field_offsets.insert(std::make_pair(unnamed_bitfield_decl, anon_field_info.bit_offset)); | |||
2070 | } | |||
2071 | } | |||
2072 | last_field_info = this_field_info; | |||
2073 | } | |||
2074 | else | |||
2075 | { | |||
2076 | last_field_info.Clear(); | |||
2077 | } | |||
2078 | ||||
2079 | ClangASTType member_clang_type = member_type->GetClangLayoutType(); | |||
2080 | ||||
2081 | { | |||
2082 | // Older versions of clang emit array[0] and array[1] in the same way (<rdar://problem/12566646>). | |||
2083 | // If the current field is at the end of the structure, then there is definitely no room for extra | |||
2084 | // elements and we override the type to array[0]. | |||
2085 | ||||
2086 | ClangASTType member_array_element_type; | |||
2087 | uint64_t member_array_size; | |||
2088 | bool member_array_is_incomplete; | |||
2089 | ||||
2090 | if (member_clang_type.IsArrayType(&member_array_element_type, | |||
2091 | &member_array_size, | |||
2092 | &member_array_is_incomplete) && | |||
2093 | !member_array_is_incomplete) | |||
2094 | { | |||
2095 | uint64_t parent_byte_size = parent_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, UINT64_MAX(18446744073709551615UL)); | |||
2096 | ||||
2097 | if (member_byte_offset >= parent_byte_size) | |||
2098 | { | |||
2099 | if (member_array_size != 1) | |||
2100 | { | |||
2101 | GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64"l" "x" ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64"l" "x" " which extends beyond the bounds of 0x%8.8" PRIx64"l" "x", | |||
2102 | MakeUserID(die->GetOffset()), | |||
2103 | name, | |||
2104 | encoding_uid, | |||
2105 | MakeUserID(parent_die->GetOffset())); | |||
2106 | } | |||
2107 | ||||
2108 | member_clang_type = GetClangASTContext().CreateArrayType(member_array_element_type, 0, false); | |||
2109 | } | |||
2110 | } | |||
2111 | } | |||
2112 | ||||
2113 | field_decl = class_clang_type.AddFieldToRecordType (name, | |||
2114 | member_clang_type, | |||
2115 | accessibility, | |||
2116 | bit_size); | |||
2117 | ||||
2118 | GetClangASTContext().SetMetadataAsUserID (field_decl, MakeUserID(die->GetOffset())); | |||
2119 | ||||
2120 | layout_info.field_offsets.insert(std::make_pair(field_decl, field_bit_offset)); | |||
2121 | ||||
2122 | } | |||
2123 | else | |||
2124 | { | |||
2125 | if (name) | |||
2126 | GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64"l" "x" ": DW_TAG_member '%s' refers to type 0x%8.8" PRIx64"l" "x" " which was unable to be parsed", | |||
2127 | MakeUserID(die->GetOffset()), | |||
2128 | name, | |||
2129 | encoding_uid); | |||
2130 | else | |||
2131 | GetObjectFile()->GetModule()->ReportError ("0x%8.8" PRIx64"l" "x" ": DW_TAG_member refers to type 0x%8.8" PRIx64"l" "x" " which was unable to be parsed", | |||
2132 | MakeUserID(die->GetOffset()), | |||
2133 | encoding_uid); | |||
2134 | } | |||
2135 | } | |||
2136 | ||||
2137 | if (prop_name != NULL__null) | |||
2138 | { | |||
2139 | clang::ObjCIvarDecl *ivar_decl = NULL__null; | |||
2140 | ||||
2141 | if (field_decl) | |||
2142 | { | |||
2143 | ivar_decl = clang::dyn_cast<clang::ObjCIvarDecl>(field_decl); | |||
2144 | assert (ivar_decl != NULL)((ivar_decl != __null) ? static_cast<void> (0) : __assert_fail ("ivar_decl != __null", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2144, __PRETTY_FUNCTION__)); | |||
2145 | } | |||
2146 | ||||
2147 | ClangASTMetadata metadata; | |||
2148 | metadata.SetUserID (MakeUserID(die->GetOffset())); | |||
2149 | delayed_properties.push_back(DelayedAddObjCClassProperty(class_clang_type, | |||
2150 | prop_name, | |||
2151 | member_type->GetClangLayoutType(), | |||
2152 | ivar_decl, | |||
2153 | prop_setter_name, | |||
2154 | prop_getter_name, | |||
2155 | prop_attributes, | |||
2156 | &metadata)); | |||
2157 | ||||
2158 | if (ivar_decl) | |||
2159 | GetClangASTContext().SetMetadataAsUserID (ivar_decl, MakeUserID(die->GetOffset())); | |||
2160 | } | |||
2161 | } | |||
2162 | } | |||
2163 | ++member_idx; | |||
2164 | } | |||
2165 | break; | |||
2166 | ||||
2167 | case DW_TAG_subprogram: | |||
2168 | // Let the type parsing code handle this one for us. | |||
2169 | member_function_dies.Append (die); | |||
2170 | break; | |||
2171 | ||||
2172 | case DW_TAG_inheritance: | |||
2173 | { | |||
2174 | is_a_class = true; | |||
2175 | if (default_accessibility == eAccessNone) | |||
2176 | default_accessibility = eAccessPrivate; | |||
2177 | // TODO: implement DW_TAG_inheritance type parsing | |||
2178 | DWARFDebugInfoEntry::Attributes attributes; | |||
2179 | const size_t num_attributes = die->GetAttributes (this, | |||
2180 | dwarf_cu, | |||
2181 | fixed_form_sizes, | |||
2182 | attributes); | |||
2183 | if (num_attributes > 0) | |||
2184 | { | |||
2185 | Declaration decl; | |||
2186 | DWARFExpression location; | |||
2187 | lldb::user_id_t encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||
2188 | AccessType accessibility = default_accessibility; | |||
2189 | bool is_virtual = false; | |||
2190 | bool is_base_of_class = true; | |||
2191 | off_t member_byte_offset = 0; | |||
2192 | uint32_t i; | |||
2193 | for (i=0; i<num_attributes; ++i) | |||
2194 | { | |||
2195 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
2196 | DWARFFormValue form_value; | |||
2197 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
2198 | { | |||
2199 | switch (attr) | |||
2200 | { | |||
2201 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
2202 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
2203 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
2204 | case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break; | |||
2205 | case DW_AT_data_member_location: | |||
2206 | if (form_value.BlockData()) | |||
2207 | { | |||
2208 | Value initialValue(0); | |||
2209 | Value memberOffset(0); | |||
2210 | const DWARFDataExtractor& debug_info_data = get_debug_info_data(); | |||
2211 | uint32_t block_length = form_value.Unsigned(); | |||
2212 | uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart(); | |||
2213 | if (DWARFExpression::Evaluate (NULL__null, | |||
2214 | NULL__null, | |||
2215 | NULL__null, | |||
2216 | NULL__null, | |||
2217 | module, | |||
2218 | debug_info_data, | |||
2219 | block_offset, | |||
2220 | block_length, | |||
2221 | eRegisterKindDWARF, | |||
2222 | &initialValue, | |||
2223 | memberOffset, | |||
2224 | NULL__null)) | |||
2225 | { | |||
2226 | member_byte_offset = memberOffset.ResolveValue(NULL__null).UInt(); | |||
2227 | } | |||
2228 | } | |||
2229 | else | |||
2230 | { | |||
2231 | // With DWARF 3 and later, if the value is an integer constant, | |||
2232 | // this form value is the offset in bytes from the beginning | |||
2233 | // of the containing entity. | |||
2234 | member_byte_offset = form_value.Unsigned(); | |||
2235 | } | |||
2236 | break; | |||
2237 | ||||
2238 | case DW_AT_accessibility: | |||
2239 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); | |||
2240 | break; | |||
2241 | ||||
2242 | case DW_AT_virtuality: | |||
2243 | is_virtual = form_value.Boolean(); | |||
2244 | break; | |||
2245 | ||||
2246 | case DW_AT_sibling: | |||
2247 | break; | |||
2248 | ||||
2249 | default: | |||
2250 | break; | |||
2251 | } | |||
2252 | } | |||
2253 | } | |||
2254 | ||||
2255 | Type *base_class_type = ResolveTypeUID(encoding_uid); | |||
2256 | assert(base_class_type)((base_class_type) ? static_cast<void> (0) : __assert_fail ("base_class_type", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2256, __PRETTY_FUNCTION__)); | |||
2257 | ||||
2258 | ClangASTType base_class_clang_type = base_class_type->GetClangFullType(); | |||
2259 | assert (base_class_clang_type)((base_class_clang_type) ? static_cast<void> (0) : __assert_fail ("base_class_clang_type", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2259, __PRETTY_FUNCTION__)); | |||
2260 | if (class_language == eLanguageTypeObjC) | |||
2261 | { | |||
2262 | class_clang_type.SetObjCSuperClass(base_class_clang_type); | |||
2263 | } | |||
2264 | else | |||
2265 | { | |||
2266 | base_classes.push_back (base_class_clang_type.CreateBaseClassSpecifier (accessibility, | |||
2267 | is_virtual, | |||
2268 | is_base_of_class)); | |||
2269 | ||||
2270 | if (is_virtual) | |||
2271 | { | |||
2272 | // Do not specify any offset for virtual inheritance. The DWARF produced by clang doesn't | |||
2273 | // give us a constant offset, but gives us a DWARF expressions that requires an actual object | |||
2274 | // in memory. the DW_AT_data_member_location for a virtual base class looks like: | |||
2275 | // DW_AT_data_member_location( DW_OP_dup, DW_OP_deref, DW_OP_constu(0x00000018), DW_OP_minus, DW_OP_deref, DW_OP_plus ) | |||
2276 | // Given this, there is really no valid response we can give to clang for virtual base | |||
2277 | // class offsets, and this should eventually be removed from LayoutRecordType() in the external | |||
2278 | // AST source in clang. | |||
2279 | } | |||
2280 | else | |||
2281 | { | |||
2282 | layout_info.base_offsets.insert(std::make_pair(base_class_clang_type.GetAsCXXRecordDecl(), | |||
2283 | clang::CharUnits::fromQuantity(member_byte_offset))); | |||
2284 | } | |||
2285 | } | |||
2286 | } | |||
2287 | } | |||
2288 | break; | |||
2289 | ||||
2290 | default: | |||
2291 | break; | |||
2292 | } | |||
2293 | } | |||
2294 | ||||
2295 | return count; | |||
2296 | } | |||
2297 | ||||
2298 | ||||
2299 | clang::DeclContext* | |||
2300 | SymbolFileDWARF::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid) | |||
2301 | { | |||
2302 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
2303 | if (debug_info && UserIDMatches(type_uid)) | |||
2304 | { | |||
2305 | DWARFCompileUnitSP cu_sp; | |||
2306 | const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(type_uid, &cu_sp); | |||
2307 | if (die) | |||
2308 | return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL__null); | |||
2309 | } | |||
2310 | return NULL__null; | |||
2311 | } | |||
2312 | ||||
2313 | clang::DeclContext* | |||
2314 | SymbolFileDWARF::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid) | |||
2315 | { | |||
2316 | if (UserIDMatches(type_uid)) | |||
2317 | return GetClangDeclContextForDIEOffset (sc, type_uid); | |||
2318 | return NULL__null; | |||
2319 | } | |||
2320 | ||||
2321 | Type* | |||
2322 | SymbolFileDWARF::ResolveTypeUID (lldb::user_id_t type_uid) | |||
2323 | { | |||
2324 | if (UserIDMatches(type_uid)) | |||
2325 | { | |||
2326 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
2327 | if (debug_info) | |||
2328 | { | |||
2329 | DWARFCompileUnitSP cu_sp; | |||
2330 | const DWARFDebugInfoEntry* type_die = debug_info->GetDIEPtr(type_uid, &cu_sp); | |||
2331 | const bool assert_not_being_parsed = true; | |||
2332 | return ResolveTypeUID (cu_sp.get(), type_die, assert_not_being_parsed); | |||
2333 | } | |||
2334 | } | |||
2335 | return NULL__null; | |||
2336 | } | |||
2337 | ||||
2338 | Type* | |||
2339 | SymbolFileDWARF::ResolveTypeUID (DWARFCompileUnit* cu, const DWARFDebugInfoEntry* die, bool assert_not_being_parsed) | |||
2340 | { | |||
2341 | if (die != NULL__null) | |||
2342 | { | |||
2343 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||
2344 | if (log) | |||
2345 | GetObjectFile()->GetModule()->LogMessage (log, | |||
2346 | "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s'", | |||
2347 | die->GetOffset(), | |||
2348 | DW_TAG_value_to_name(die->Tag()), | |||
2349 | die->GetName(this, cu)); | |||
2350 | ||||
2351 | // We might be coming in in the middle of a type tree (a class | |||
2352 | // withing a class, an enum within a class), so parse any needed | |||
2353 | // parent DIEs before we get to this one... | |||
2354 | const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die); | |||
2355 | switch (decl_ctx_die->Tag()) | |||
2356 | { | |||
2357 | case DW_TAG_structure_type: | |||
2358 | case DW_TAG_union_type: | |||
2359 | case DW_TAG_class_type: | |||
2360 | { | |||
2361 | // Get the type, which could be a forward declaration | |||
2362 | if (log) | |||
2363 | GetObjectFile()->GetModule()->LogMessage (log, | |||
2364 | "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent forward type for 0x%8.8x", | |||
2365 | die->GetOffset(), | |||
2366 | DW_TAG_value_to_name(die->Tag()), | |||
2367 | die->GetName(this, cu), | |||
2368 | decl_ctx_die->GetOffset()); | |||
2369 | // | |||
2370 | // Type *parent_type = ResolveTypeUID (cu, decl_ctx_die, assert_not_being_parsed); | |||
2371 | // if (child_requires_parent_class_union_or_struct_to_be_completed(die->Tag())) | |||
2372 | // { | |||
2373 | // if (log) | |||
2374 | // GetObjectFile()->GetModule()->LogMessage (log, | |||
2375 | // "SymbolFileDWARF::ResolveTypeUID (die = 0x%8.8x) %s '%s' resolve parent full type for 0x%8.8x since die is a function", | |||
2376 | // die->GetOffset(), | |||
2377 | // DW_TAG_value_to_name(die->Tag()), | |||
2378 | // die->GetName(this, cu), | |||
2379 | // decl_ctx_die->GetOffset()); | |||
2380 | // // Ask the type to complete itself if it already hasn't since if we | |||
2381 | // // want a function (method or static) from a class, the class must | |||
2382 | // // create itself and add it's own methods and class functions. | |||
2383 | // if (parent_type) | |||
2384 | // parent_type->GetClangFullType(); | |||
2385 | // } | |||
2386 | } | |||
2387 | break; | |||
2388 | ||||
2389 | default: | |||
2390 | break; | |||
2391 | } | |||
2392 | return ResolveType (cu, die); | |||
2393 | } | |||
2394 | return NULL__null; | |||
2395 | } | |||
2396 | ||||
2397 | // This function is used when SymbolFileDWARFDebugMap owns a bunch of | |||
2398 | // SymbolFileDWARF objects to detect if this DWARF file is the one that | |||
2399 | // can resolve a clang_type. | |||
2400 | bool | |||
2401 | SymbolFileDWARF::HasForwardDeclForClangType (const ClangASTType &clang_type) | |||
2402 | { | |||
2403 | ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers(); | |||
2404 | const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType()); | |||
2405 | return die != NULL__null; | |||
2406 | } | |||
2407 | ||||
2408 | ||||
2409 | bool | |||
2410 | SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (ClangASTType &clang_type) | |||
2411 | { | |||
2412 | // We have a struct/union/class/enum that needs to be fully resolved. | |||
2413 | ClangASTType clang_type_no_qualifiers = clang_type.RemoveFastQualifiers(); | |||
2414 | const DWARFDebugInfoEntry* die = m_forward_decl_clang_type_to_die.lookup (clang_type_no_qualifiers.GetOpaqueQualType()); | |||
2415 | if (die == NULL__null) | |||
2416 | { | |||
2417 | // We have already resolved this type... | |||
2418 | return true; | |||
2419 | } | |||
2420 | // Once we start resolving this type, remove it from the forward declaration | |||
2421 | // map in case anyone child members or other types require this type to get resolved. | |||
2422 | // The type will get resolved when all of the calls to SymbolFileDWARF::ResolveClangOpaqueTypeDefinition | |||
2423 | // are done. | |||
2424 | m_forward_decl_clang_type_to_die.erase (clang_type_no_qualifiers.GetOpaqueQualType()); | |||
2425 | ||||
2426 | // Disable external storage for this type so we don't get anymore | |||
2427 | // clang::ExternalASTSource queries for this type. | |||
2428 | clang_type.SetHasExternalStorage (false); | |||
2429 | ||||
2430 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
2431 | ||||
2432 | DWARFCompileUnit *dwarf_cu = debug_info->GetCompileUnitContainingDIE (die->GetOffset()).get(); | |||
2433 | Type *type = m_die_to_type.lookup (die); | |||
2434 | ||||
2435 | const dw_tag_t tag = die->Tag(); | |||
2436 | ||||
2437 | Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO(1u << 1)|DWARF_LOG_TYPE_COMPLETION(1u << 7))); | |||
2438 | if (log) | |||
2439 | GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log, | |||
2440 | "0x%8.8" PRIx64"l" "x" ": %s '%s' resolving forward declaration...", | |||
2441 | MakeUserID(die->GetOffset()), | |||
2442 | DW_TAG_value_to_name(tag), | |||
2443 | type->GetName().AsCString()); | |||
2444 | assert (clang_type)((clang_type) ? static_cast<void> (0) : __assert_fail ( "clang_type", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2444, __PRETTY_FUNCTION__)); | |||
2445 | DWARFDebugInfoEntry::Attributes attributes; | |||
2446 | ||||
2447 | switch (tag) | |||
2448 | { | |||
2449 | case DW_TAG_structure_type: | |||
2450 | case DW_TAG_union_type: | |||
2451 | case DW_TAG_class_type: | |||
2452 | { | |||
2453 | LayoutInfo layout_info; | |||
2454 | ||||
2455 | { | |||
2456 | if (die->HasChildren()) | |||
2457 | { | |||
2458 | LanguageType class_language = eLanguageTypeUnknown; | |||
2459 | if (clang_type.IsObjCObjectOrInterfaceType()) | |||
2460 | { | |||
2461 | class_language = eLanguageTypeObjC; | |||
2462 | // For objective C we don't start the definition when | |||
2463 | // the class is created. | |||
2464 | clang_type.StartTagDeclarationDefinition (); | |||
2465 | } | |||
2466 | ||||
2467 | int tag_decl_kind = -1; | |||
2468 | AccessType default_accessibility = eAccessNone; | |||
2469 | if (tag == DW_TAG_structure_type) | |||
2470 | { | |||
2471 | tag_decl_kind = clang::TTK_Struct; | |||
2472 | default_accessibility = eAccessPublic; | |||
2473 | } | |||
2474 | else if (tag == DW_TAG_union_type) | |||
2475 | { | |||
2476 | tag_decl_kind = clang::TTK_Union; | |||
2477 | default_accessibility = eAccessPublic; | |||
2478 | } | |||
2479 | else if (tag == DW_TAG_class_type) | |||
2480 | { | |||
2481 | tag_decl_kind = clang::TTK_Class; | |||
2482 | default_accessibility = eAccessPrivate; | |||
2483 | } | |||
2484 | ||||
2485 | SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu)); | |||
2486 | std::vector<clang::CXXBaseSpecifier *> base_classes; | |||
2487 | std::vector<int> member_accessibilities; | |||
2488 | bool is_a_class = false; | |||
2489 | // Parse members and base classes first | |||
2490 | DWARFDIECollection member_function_dies; | |||
2491 | ||||
2492 | DelayedPropertyList delayed_properties; | |||
2493 | ParseChildMembers (sc, | |||
2494 | dwarf_cu, | |||
2495 | die, | |||
2496 | clang_type, | |||
2497 | class_language, | |||
2498 | base_classes, | |||
2499 | member_accessibilities, | |||
2500 | member_function_dies, | |||
2501 | delayed_properties, | |||
2502 | default_accessibility, | |||
2503 | is_a_class, | |||
2504 | layout_info); | |||
2505 | ||||
2506 | // Now parse any methods if there were any... | |||
2507 | size_t num_functions = member_function_dies.Size(); | |||
2508 | if (num_functions > 0) | |||
2509 | { | |||
2510 | for (size_t i=0; i<num_functions; ++i) | |||
2511 | { | |||
2512 | ResolveType(dwarf_cu, member_function_dies.GetDIEPtrAtIndex(i)); | |||
2513 | } | |||
2514 | } | |||
2515 | ||||
2516 | if (class_language == eLanguageTypeObjC) | |||
2517 | { | |||
2518 | ConstString class_name (clang_type.GetTypeName()); | |||
2519 | if (class_name) | |||
2520 | { | |||
2521 | DIEArray method_die_offsets; | |||
2522 | if (m_using_apple_tables) | |||
2523 | { | |||
2524 | if (m_apple_objc_ap.get()) | |||
2525 | m_apple_objc_ap->FindByName(class_name.GetCString(), method_die_offsets); | |||
2526 | } | |||
2527 | else | |||
2528 | { | |||
2529 | if (!m_indexed) | |||
2530 | Index (); | |||
2531 | ||||
2532 | m_objc_class_selectors_index.Find (class_name, method_die_offsets); | |||
2533 | } | |||
2534 | ||||
2535 | if (!method_die_offsets.empty()) | |||
2536 | { | |||
2537 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
2538 | ||||
2539 | DWARFCompileUnit* method_cu = NULL__null; | |||
2540 | const size_t num_matches = method_die_offsets.size(); | |||
2541 | for (size_t i=0; i<num_matches; ++i) | |||
2542 | { | |||
2543 | const dw_offset_t die_offset = method_die_offsets[i]; | |||
2544 | DWARFDebugInfoEntry *method_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &method_cu); | |||
2545 | ||||
2546 | if (method_die) | |||
2547 | ResolveType (method_cu, method_die); | |||
2548 | else | |||
2549 | { | |||
2550 | if (m_using_apple_tables) | |||
2551 | { | |||
2552 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_objc accelerator table had bad die 0x%8.8x for '%s')\n", | |||
2553 | die_offset, class_name.GetCString()); | |||
2554 | } | |||
2555 | } | |||
2556 | } | |||
2557 | } | |||
2558 | ||||
2559 | for (DelayedPropertyList::iterator pi = delayed_properties.begin(), pe = delayed_properties.end(); | |||
2560 | pi != pe; | |||
2561 | ++pi) | |||
2562 | pi->Finalize(); | |||
2563 | } | |||
2564 | } | |||
2565 | ||||
2566 | // If we have a DW_TAG_structure_type instead of a DW_TAG_class_type we | |||
2567 | // need to tell the clang type it is actually a class. | |||
2568 | if (class_language != eLanguageTypeObjC) | |||
2569 | { | |||
2570 | if (is_a_class && tag_decl_kind != clang::TTK_Class) | |||
2571 | clang_type.SetTagTypeKind (clang::TTK_Class); | |||
2572 | } | |||
2573 | ||||
2574 | // Since DW_TAG_structure_type gets used for both classes | |||
2575 | // and structures, we may need to set any DW_TAG_member | |||
2576 | // fields to have a "private" access if none was specified. | |||
2577 | // When we parsed the child members we tracked that actual | |||
2578 | // accessibility value for each DW_TAG_member in the | |||
2579 | // "member_accessibilities" array. If the value for the | |||
2580 | // member is zero, then it was set to the "default_accessibility" | |||
2581 | // which for structs was "public". Below we correct this | |||
2582 | // by setting any fields to "private" that weren't correctly | |||
2583 | // set. | |||
2584 | if (is_a_class && !member_accessibilities.empty()) | |||
2585 | { | |||
2586 | // This is a class and all members that didn't have | |||
2587 | // their access specified are private. | |||
2588 | clang_type.SetDefaultAccessForRecordFields (eAccessPrivate, | |||
2589 | &member_accessibilities.front(), | |||
2590 | member_accessibilities.size()); | |||
2591 | } | |||
2592 | ||||
2593 | if (!base_classes.empty()) | |||
2594 | { | |||
2595 | // Make sure all base classes refer to complete types and not | |||
2596 | // forward declarations. If we don't do this, clang will crash | |||
2597 | // with an assertion in the call to clang_type.SetBaseClassesForClassType() | |||
2598 | bool base_class_error = false; | |||
2599 | for (auto &base_class : base_classes) | |||
2600 | { | |||
2601 | clang::TypeSourceInfo *type_source_info = base_class->getTypeSourceInfo(); | |||
2602 | if (type_source_info) | |||
2603 | { | |||
2604 | ClangASTType base_class_type (GetClangASTContext().getASTContext(), type_source_info->getType()); | |||
2605 | if (base_class_type.GetCompleteType() == false) | |||
2606 | { | |||
2607 | if (!base_class_error) | |||
2608 | { | |||
2609 | GetObjectFile()->GetModule()->ReportError ("DWARF DIE at 0x%8.8x for class '%s' has a base class '%s' that is a forward declaration, not a complete definition.\nPlease file a bug against the compiler and include the preprocessed output for %s", | |||
2610 | die->GetOffset(), | |||
2611 | die->GetName(this, dwarf_cu), | |||
2612 | base_class_type.GetTypeName().GetCString(), | |||
2613 | sc.comp_unit ? sc.comp_unit->GetPath().c_str() : "the source file"); | |||
2614 | } | |||
2615 | // We have no choice other than to pretend that the base class | |||
2616 | // is complete. If we don't do this, clang will crash when we | |||
2617 | // call setBases() inside of "clang_type.SetBaseClassesForClassType()" | |||
2618 | // below. Since we provide layout assistance, all ivars in this | |||
2619 | // class and other classes will be fine, this is the best we can do | |||
2620 | // short of crashing. | |||
2621 | base_class_type.StartTagDeclarationDefinition (); | |||
2622 | base_class_type.CompleteTagDeclarationDefinition (); | |||
2623 | } | |||
2624 | } | |||
2625 | } | |||
2626 | clang_type.SetBaseClassesForClassType (&base_classes.front(), | |||
2627 | base_classes.size()); | |||
2628 | ||||
2629 | // Clang will copy each CXXBaseSpecifier in "base_classes" | |||
2630 | // so we have to free them all. | |||
2631 | ClangASTType::DeleteBaseClassSpecifiers (&base_classes.front(), | |||
2632 | base_classes.size()); | |||
2633 | } | |||
2634 | } | |||
2635 | } | |||
2636 | ||||
2637 | clang_type.BuildIndirectFields (); | |||
2638 | clang_type.CompleteTagDeclarationDefinition (); | |||
2639 | ||||
2640 | if (!layout_info.field_offsets.empty() || | |||
2641 | !layout_info.base_offsets.empty() || | |||
2642 | !layout_info.vbase_offsets.empty() ) | |||
2643 | { | |||
2644 | if (type) | |||
2645 | layout_info.bit_size = type->GetByteSize() * 8; | |||
2646 | if (layout_info.bit_size == 0) | |||
2647 | layout_info.bit_size = die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_byte_size, 0) * 8; | |||
2648 | ||||
2649 | clang::CXXRecordDecl *record_decl = clang_type.GetAsCXXRecordDecl(); | |||
2650 | if (record_decl) | |||
2651 | { | |||
2652 | if (log) | |||
2653 | { | |||
2654 | GetObjectFile()->GetModule()->LogMessage (log, | |||
2655 | "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) caching layout info for record_decl = %p, bit_size = %" PRIu64"l" "u" ", alignment = %" PRIu64"l" "u" ", field_offsets[%u], base_offsets[%u], vbase_offsets[%u])", | |||
2656 | static_cast<void*>(clang_type.GetOpaqueQualType()), | |||
2657 | static_cast<void*>(record_decl), | |||
2658 | layout_info.bit_size, | |||
2659 | layout_info.alignment, | |||
2660 | static_cast<uint32_t>(layout_info.field_offsets.size()), | |||
2661 | static_cast<uint32_t>(layout_info.base_offsets.size()), | |||
2662 | static_cast<uint32_t>(layout_info.vbase_offsets.size())); | |||
2663 | ||||
2664 | uint32_t idx; | |||
2665 | { | |||
2666 | llvm::DenseMap <const clang::FieldDecl *, uint64_t>::const_iterator pos, end = layout_info.field_offsets.end(); | |||
2667 | for (idx = 0, pos = layout_info.field_offsets.begin(); pos != end; ++pos, ++idx) | |||
2668 | { | |||
2669 | GetObjectFile()->GetModule()->LogMessage (log, | |||
2670 | "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) field[%u] = { bit_offset=%u, name='%s' }", | |||
2671 | static_cast<void*>(clang_type.GetOpaqueQualType()), | |||
2672 | idx, | |||
2673 | static_cast<uint32_t>(pos->second), | |||
2674 | pos->first->getNameAsString().c_str()); | |||
2675 | } | |||
2676 | } | |||
2677 | ||||
2678 | { | |||
2679 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator base_pos, base_end = layout_info.base_offsets.end(); | |||
2680 | for (idx = 0, base_pos = layout_info.base_offsets.begin(); base_pos != base_end; ++base_pos, ++idx) | |||
2681 | { | |||
2682 | GetObjectFile()->GetModule()->LogMessage (log, | |||
2683 | "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) base[%u] = { byte_offset=%u, name='%s' }", | |||
2684 | clang_type.GetOpaqueQualType(), | |||
2685 | idx, | |||
2686 | (uint32_t)base_pos->second.getQuantity(), | |||
2687 | base_pos->first->getNameAsString().c_str()); | |||
2688 | } | |||
2689 | } | |||
2690 | { | |||
2691 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits>::const_iterator vbase_pos, vbase_end = layout_info.vbase_offsets.end(); | |||
2692 | for (idx = 0, vbase_pos = layout_info.vbase_offsets.begin(); vbase_pos != vbase_end; ++vbase_pos, ++idx) | |||
2693 | { | |||
2694 | GetObjectFile()->GetModule()->LogMessage (log, | |||
2695 | "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition (clang_type = %p) vbase[%u] = { byte_offset=%u, name='%s' }", | |||
2696 | static_cast<void*>(clang_type.GetOpaqueQualType()), | |||
2697 | idx, | |||
2698 | static_cast<uint32_t>(vbase_pos->second.getQuantity()), | |||
2699 | vbase_pos->first->getNameAsString().c_str()); | |||
2700 | } | |||
2701 | } | |||
2702 | } | |||
2703 | m_record_decl_to_layout_map.insert(std::make_pair(record_decl, layout_info)); | |||
2704 | } | |||
2705 | } | |||
2706 | } | |||
2707 | ||||
2708 | return (bool)clang_type; | |||
2709 | ||||
2710 | case DW_TAG_enumeration_type: | |||
2711 | clang_type.StartTagDeclarationDefinition (); | |||
2712 | if (die->HasChildren()) | |||
2713 | { | |||
2714 | SymbolContext sc(GetCompUnitForDWARFCompUnit(dwarf_cu)); | |||
2715 | bool is_signed = false; | |||
2716 | clang_type.IsIntegerType(is_signed); | |||
2717 | ParseChildEnumerators(sc, clang_type, is_signed, type->GetByteSize(), dwarf_cu, die); | |||
2718 | } | |||
2719 | clang_type.CompleteTagDeclarationDefinition (); | |||
2720 | return (bool)clang_type; | |||
2721 | ||||
2722 | default: | |||
2723 | assert(false && "not a forward clang type decl!")((false && "not a forward clang type decl!") ? static_cast <void> (0) : __assert_fail ("false && \"not a forward clang type decl!\"" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 2723, __PRETTY_FUNCTION__)); | |||
2724 | break; | |||
2725 | } | |||
2726 | return false; | |||
2727 | } | |||
2728 | ||||
2729 | Type* | |||
2730 | SymbolFileDWARF::ResolveType (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* type_die, bool assert_not_being_parsed) | |||
2731 | { | |||
2732 | if (type_die != NULL__null) | |||
2733 | { | |||
2734 | Type *type = m_die_to_type.lookup (type_die); | |||
2735 | ||||
2736 | if (type == NULL__null) | |||
2737 | type = GetTypeForDIE (dwarf_cu, type_die).get(); | |||
2738 | ||||
2739 | if (assert_not_being_parsed) | |||
2740 | { | |||
2741 | if (type != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||
2742 | return type; | |||
2743 | ||||
2744 | GetObjectFile()->GetModule()->ReportError ("Parsing a die that is being parsed die: 0x%8.8x: %s %s", | |||
2745 | type_die->GetOffset(), | |||
2746 | DW_TAG_value_to_name(type_die->Tag()), | |||
2747 | type_die->GetName(this, dwarf_cu)); | |||
2748 | ||||
2749 | } | |||
2750 | else | |||
2751 | return type; | |||
2752 | } | |||
2753 | return NULL__null; | |||
2754 | } | |||
2755 | ||||
2756 | CompileUnit* | |||
2757 | SymbolFileDWARF::GetCompUnitForDWARFCompUnit (DWARFCompileUnit* dwarf_cu, uint32_t cu_idx) | |||
2758 | { | |||
2759 | // Check if the symbol vendor already knows about this compile unit? | |||
2760 | if (dwarf_cu->GetUserData() == NULL__null) | |||
2761 | { | |||
2762 | // The symbol vendor doesn't know about this compile unit, we | |||
2763 | // need to parse and add it to the symbol vendor object. | |||
2764 | return ParseCompileUnit(dwarf_cu, cu_idx).get(); | |||
2765 | } | |||
2766 | return (CompileUnit*)dwarf_cu->GetUserData(); | |||
2767 | } | |||
2768 | ||||
2769 | bool | |||
2770 | SymbolFileDWARF::GetFunction (DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry* func_die, SymbolContext& sc) | |||
2771 | { | |||
2772 | sc.Clear(false); | |||
2773 | // Check if the symbol vendor already knows about this compile unit? | |||
2774 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX(4294967295U)); | |||
2775 | ||||
2776 | sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(func_die->GetOffset())).get(); | |||
2777 | if (sc.function == NULL__null) | |||
2778 | sc.function = ParseCompileUnitFunction(sc, dwarf_cu, func_die); | |||
2779 | ||||
2780 | if (sc.function) | |||
2781 | { | |||
2782 | sc.module_sp = sc.function->CalculateSymbolContextModule(); | |||
2783 | return true; | |||
2784 | } | |||
2785 | ||||
2786 | return false; | |||
2787 | } | |||
2788 | ||||
2789 | uint32_t | |||
2790 | SymbolFileDWARF::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc) | |||
2791 | { | |||
2792 | Timer scoped_timer(__PRETTY_FUNCTION__, | |||
2793 | "SymbolFileDWARF::ResolveSymbolContext (so_addr = { section = %p, offset = 0x%" PRIx64"l" "x" " }, resolve_scope = 0x%8.8x)", | |||
2794 | static_cast<void*>(so_addr.GetSection().get()), | |||
2795 | so_addr.GetOffset(), resolve_scope); | |||
2796 | uint32_t resolved = 0; | |||
2797 | if (resolve_scope & ( eSymbolContextCompUnit | | |||
2798 | eSymbolContextFunction | | |||
2799 | eSymbolContextBlock | | |||
2800 | eSymbolContextLineEntry)) | |||
2801 | { | |||
2802 | lldb::addr_t file_vm_addr = so_addr.GetFileAddress(); | |||
2803 | ||||
2804 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
2805 | if (debug_info) | |||
2806 | { | |||
2807 | const dw_offset_t cu_offset = debug_info->GetCompileUnitAranges().FindAddress(file_vm_addr); | |||
2808 | if (cu_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
2809 | { | |||
2810 | uint32_t cu_idx = DW_INVALID_INDEX0xFFFFFFFFul; | |||
2811 | DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnit(cu_offset, &cu_idx).get(); | |||
2812 | if (dwarf_cu) | |||
2813 | { | |||
2814 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx); | |||
2815 | if (sc.comp_unit) | |||
2816 | { | |||
2817 | resolved |= eSymbolContextCompUnit; | |||
2818 | ||||
2819 | bool force_check_line_table = false; | |||
2820 | if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock)) | |||
2821 | { | |||
2822 | DWARFDebugInfoEntry *function_die = NULL__null; | |||
2823 | DWARFDebugInfoEntry *block_die = NULL__null; | |||
2824 | if (resolve_scope & eSymbolContextBlock) | |||
2825 | { | |||
2826 | dwarf_cu->LookupAddress(file_vm_addr, &function_die, &block_die); | |||
2827 | } | |||
2828 | else | |||
2829 | { | |||
2830 | dwarf_cu->LookupAddress(file_vm_addr, &function_die, NULL__null); | |||
2831 | } | |||
2832 | ||||
2833 | if (function_die != NULL__null) | |||
2834 | { | |||
2835 | sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get(); | |||
2836 | if (sc.function == NULL__null) | |||
2837 | sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die); | |||
2838 | } | |||
2839 | else | |||
2840 | { | |||
2841 | // We might have had a compile unit that had discontiguous | |||
2842 | // address ranges where the gaps are symbols that don't have | |||
2843 | // any debug info. Discontiguous compile unit address ranges | |||
2844 | // should only happen when there aren't other functions from | |||
2845 | // other compile units in these gaps. This helps keep the size | |||
2846 | // of the aranges down. | |||
2847 | force_check_line_table = true; | |||
2848 | } | |||
2849 | ||||
2850 | if (sc.function != NULL__null) | |||
2851 | { | |||
2852 | resolved |= eSymbolContextFunction; | |||
2853 | ||||
2854 | if (resolve_scope & eSymbolContextBlock) | |||
2855 | { | |||
2856 | Block& block = sc.function->GetBlock (true); | |||
2857 | ||||
2858 | if (block_die != NULL__null) | |||
2859 | sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset())); | |||
2860 | else | |||
2861 | sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset())); | |||
2862 | if (sc.block) | |||
2863 | resolved |= eSymbolContextBlock; | |||
2864 | } | |||
2865 | } | |||
2866 | } | |||
2867 | ||||
2868 | if ((resolve_scope & eSymbolContextLineEntry) || force_check_line_table) | |||
2869 | { | |||
2870 | LineTable *line_table = sc.comp_unit->GetLineTable(); | |||
2871 | if (line_table != NULL__null) | |||
2872 | { | |||
2873 | // And address that makes it into this function should be in terms | |||
2874 | // of this debug file if there is no debug map, or it will be an | |||
2875 | // address in the .o file which needs to be fixed up to be in terms | |||
2876 | // of the debug map executable. Either way, calling FixupAddress() | |||
2877 | // will work for us. | |||
2878 | Address exe_so_addr (so_addr); | |||
2879 | if (FixupAddress(exe_so_addr)) | |||
2880 | { | |||
2881 | if (line_table->FindLineEntryByAddress (exe_so_addr, sc.line_entry)) | |||
2882 | { | |||
2883 | resolved |= eSymbolContextLineEntry; | |||
2884 | } | |||
2885 | } | |||
2886 | } | |||
2887 | } | |||
2888 | ||||
2889 | if (force_check_line_table && !(resolved & eSymbolContextLineEntry)) | |||
2890 | { | |||
2891 | // We might have had a compile unit that had discontiguous | |||
2892 | // address ranges where the gaps are symbols that don't have | |||
2893 | // any debug info. Discontiguous compile unit address ranges | |||
2894 | // should only happen when there aren't other functions from | |||
2895 | // other compile units in these gaps. This helps keep the size | |||
2896 | // of the aranges down. | |||
2897 | sc.comp_unit = NULL__null; | |||
2898 | resolved &= ~eSymbolContextCompUnit; | |||
2899 | } | |||
2900 | } | |||
2901 | else | |||
2902 | { | |||
2903 | GetObjectFile()->GetModule()->ReportWarning ("0x%8.8x: compile unit %u failed to create a valid lldb_private::CompileUnit class.", | |||
2904 | cu_offset, | |||
2905 | cu_idx); | |||
2906 | } | |||
2907 | } | |||
2908 | } | |||
2909 | } | |||
2910 | } | |||
2911 | return resolved; | |||
2912 | } | |||
2913 | ||||
2914 | ||||
2915 | ||||
2916 | uint32_t | |||
2917 | SymbolFileDWARF::ResolveSymbolContext(const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) | |||
2918 | { | |||
2919 | const uint32_t prev_size = sc_list.GetSize(); | |||
2920 | if (resolve_scope & eSymbolContextCompUnit) | |||
2921 | { | |||
2922 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
2923 | if (debug_info) | |||
2924 | { | |||
2925 | uint32_t cu_idx; | |||
2926 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||
2927 | ||||
2928 | for (cu_idx = 0; (dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx)) != NULL__null; ++cu_idx) | |||
2929 | { | |||
2930 | CompileUnit *dc_cu = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx); | |||
2931 | const bool full_match = (bool)file_spec.GetDirectory(); | |||
2932 | bool file_spec_matches_cu_file_spec = dc_cu != NULL__null && FileSpec::Equal(file_spec, *dc_cu, full_match); | |||
2933 | if (check_inlines || file_spec_matches_cu_file_spec) | |||
2934 | { | |||
2935 | SymbolContext sc (m_obj_file->GetModule()); | |||
2936 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, cu_idx); | |||
2937 | if (sc.comp_unit) | |||
2938 | { | |||
2939 | uint32_t file_idx = UINT32_MAX(4294967295U); | |||
2940 | ||||
2941 | // If we are looking for inline functions only and we don't | |||
2942 | // find it in the support files, we are done. | |||
2943 | if (check_inlines) | |||
2944 | { | |||
2945 | file_idx = sc.comp_unit->GetSupportFiles().FindFileIndex (1, file_spec, true); | |||
2946 | if (file_idx == UINT32_MAX(4294967295U)) | |||
2947 | continue; | |||
2948 | } | |||
2949 | ||||
2950 | if (line != 0) | |||
2951 | { | |||
2952 | LineTable *line_table = sc.comp_unit->GetLineTable(); | |||
2953 | ||||
2954 | if (line_table != NULL__null && line != 0) | |||
2955 | { | |||
2956 | // We will have already looked up the file index if | |||
2957 | // we are searching for inline entries. | |||
2958 | if (!check_inlines) | |||
2959 | file_idx = sc.comp_unit->GetSupportFiles().FindFileIndex (1, file_spec, true); | |||
2960 | ||||
2961 | if (file_idx != UINT32_MAX(4294967295U)) | |||
2962 | { | |||
2963 | uint32_t found_line; | |||
2964 | uint32_t line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_idx, line, false, &sc.line_entry); | |||
2965 | found_line = sc.line_entry.line; | |||
2966 | ||||
2967 | while (line_idx != UINT32_MAX(4294967295U)) | |||
2968 | { | |||
2969 | sc.function = NULL__null; | |||
2970 | sc.block = NULL__null; | |||
2971 | if (resolve_scope & (eSymbolContextFunction | eSymbolContextBlock)) | |||
2972 | { | |||
2973 | const lldb::addr_t file_vm_addr = sc.line_entry.range.GetBaseAddress().GetFileAddress(); | |||
2974 | if (file_vm_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||
2975 | { | |||
2976 | DWARFDebugInfoEntry *function_die = NULL__null; | |||
2977 | DWARFDebugInfoEntry *block_die = NULL__null; | |||
2978 | dwarf_cu->LookupAddress(file_vm_addr, &function_die, resolve_scope & eSymbolContextBlock ? &block_die : NULL__null); | |||
2979 | ||||
2980 | if (function_die != NULL__null) | |||
2981 | { | |||
2982 | sc.function = sc.comp_unit->FindFunctionByUID (MakeUserID(function_die->GetOffset())).get(); | |||
2983 | if (sc.function == NULL__null) | |||
2984 | sc.function = ParseCompileUnitFunction(sc, dwarf_cu, function_die); | |||
2985 | } | |||
2986 | ||||
2987 | if (sc.function != NULL__null) | |||
2988 | { | |||
2989 | Block& block = sc.function->GetBlock (true); | |||
2990 | ||||
2991 | if (block_die != NULL__null) | |||
2992 | sc.block = block.FindBlockByID (MakeUserID(block_die->GetOffset())); | |||
2993 | else | |||
2994 | sc.block = block.FindBlockByID (MakeUserID(function_die->GetOffset())); | |||
2995 | } | |||
2996 | } | |||
2997 | } | |||
2998 | ||||
2999 | sc_list.Append(sc); | |||
3000 | line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_idx, found_line, true, &sc.line_entry); | |||
3001 | } | |||
3002 | } | |||
3003 | } | |||
3004 | else if (file_spec_matches_cu_file_spec && !check_inlines) | |||
3005 | { | |||
3006 | // only append the context if we aren't looking for inline call sites | |||
3007 | // by file and line and if the file spec matches that of the compile unit | |||
3008 | sc_list.Append(sc); | |||
3009 | } | |||
3010 | } | |||
3011 | else if (file_spec_matches_cu_file_spec && !check_inlines) | |||
3012 | { | |||
3013 | // only append the context if we aren't looking for inline call sites | |||
3014 | // by file and line and if the file spec matches that of the compile unit | |||
3015 | sc_list.Append(sc); | |||
3016 | } | |||
3017 | ||||
3018 | if (!check_inlines) | |||
3019 | break; | |||
3020 | } | |||
3021 | } | |||
3022 | } | |||
3023 | } | |||
3024 | } | |||
3025 | return sc_list.GetSize() - prev_size; | |||
3026 | } | |||
3027 | ||||
3028 | void | |||
3029 | SymbolFileDWARF::Index () | |||
3030 | { | |||
3031 | if (m_indexed) | |||
3032 | return; | |||
3033 | m_indexed = true; | |||
3034 | Timer scoped_timer (__PRETTY_FUNCTION__, | |||
3035 | "SymbolFileDWARF::Index (%s)", | |||
3036 | GetObjectFile()->GetFileSpec().GetFilename().AsCString()); | |||
3037 | ||||
3038 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
3039 | if (debug_info) | |||
3040 | { | |||
3041 | uint32_t cu_idx = 0; | |||
3042 | const uint32_t num_compile_units = GetNumCompileUnits(); | |||
3043 | for (cu_idx = 0; cu_idx < num_compile_units; ++cu_idx) | |||
3044 | { | |||
3045 | DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx); | |||
3046 | ||||
3047 | bool clear_dies = dwarf_cu->ExtractDIEsIfNeeded (false) > 1; | |||
3048 | ||||
3049 | dwarf_cu->Index (cu_idx, | |||
3050 | m_function_basename_index, | |||
3051 | m_function_fullname_index, | |||
3052 | m_function_method_index, | |||
3053 | m_function_selector_index, | |||
3054 | m_objc_class_selectors_index, | |||
3055 | m_global_index, | |||
3056 | m_type_index, | |||
3057 | m_namespace_index); | |||
3058 | ||||
3059 | // Keep memory down by clearing DIEs if this generate function | |||
3060 | // caused them to be parsed | |||
3061 | if (clear_dies) | |||
3062 | dwarf_cu->ClearDIEs (true); | |||
3063 | } | |||
3064 | ||||
3065 | m_function_basename_index.Finalize(); | |||
3066 | m_function_fullname_index.Finalize(); | |||
3067 | m_function_method_index.Finalize(); | |||
3068 | m_function_selector_index.Finalize(); | |||
3069 | m_objc_class_selectors_index.Finalize(); | |||
3070 | m_global_index.Finalize(); | |||
3071 | m_type_index.Finalize(); | |||
3072 | m_namespace_index.Finalize(); | |||
3073 | ||||
3074 | #if defined (ENABLE_DEBUG_PRINTF) | |||
3075 | StreamFile s(stdoutstdout, false); | |||
3076 | s.Printf ("DWARF index for '%s':", | |||
3077 | GetObjectFile()->GetFileSpec().GetPath().c_str()); | |||
3078 | s.Printf("\nFunction basenames:\n"); m_function_basename_index.Dump (&s); | |||
3079 | s.Printf("\nFunction fullnames:\n"); m_function_fullname_index.Dump (&s); | |||
3080 | s.Printf("\nFunction methods:\n"); m_function_method_index.Dump (&s); | |||
3081 | s.Printf("\nFunction selectors:\n"); m_function_selector_index.Dump (&s); | |||
3082 | s.Printf("\nObjective C class selectors:\n"); m_objc_class_selectors_index.Dump (&s); | |||
3083 | s.Printf("\nGlobals and statics:\n"); m_global_index.Dump (&s); | |||
3084 | s.Printf("\nTypes:\n"); m_type_index.Dump (&s); | |||
3085 | s.Printf("\nNamepaces:\n"); m_namespace_index.Dump (&s); | |||
3086 | #endif | |||
3087 | } | |||
3088 | } | |||
3089 | ||||
3090 | bool | |||
3091 | SymbolFileDWARF::NamespaceDeclMatchesThisSymbolFile (const ClangNamespaceDecl *namespace_decl) | |||
3092 | { | |||
3093 | if (namespace_decl == NULL__null) | |||
3094 | { | |||
3095 | // Invalid namespace decl which means we aren't matching only things | |||
3096 | // in this symbol file, so return true to indicate it matches this | |||
3097 | // symbol file. | |||
3098 | return true; | |||
3099 | } | |||
3100 | ||||
3101 | clang::ASTContext *namespace_ast = namespace_decl->GetASTContext(); | |||
3102 | ||||
3103 | if (namespace_ast == NULL__null) | |||
3104 | return true; // No AST in the "namespace_decl", return true since it | |||
3105 | // could then match any symbol file, including this one | |||
3106 | ||||
3107 | if (namespace_ast == GetClangASTContext().getASTContext()) | |||
3108 | return true; // The ASTs match, return true | |||
3109 | ||||
3110 | // The namespace AST was valid, and it does not match... | |||
3111 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||
3112 | ||||
3113 | if (log) | |||
3114 | GetObjectFile()->GetModule()->LogMessage(log, "Valid namespace does not match symbol file"); | |||
3115 | ||||
3116 | return false; | |||
3117 | } | |||
3118 | ||||
3119 | bool | |||
3120 | SymbolFileDWARF::DIEIsInNamespace (const ClangNamespaceDecl *namespace_decl, | |||
3121 | DWARFCompileUnit* cu, | |||
3122 | const DWARFDebugInfoEntry* die) | |||
3123 | { | |||
3124 | // No namespace specified, so the answer is | |||
3125 | if (namespace_decl == NULL__null) | |||
3126 | return true; | |||
3127 | ||||
3128 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||
3129 | ||||
3130 | const DWARFDebugInfoEntry *decl_ctx_die = NULL__null; | |||
3131 | clang::DeclContext *die_clang_decl_ctx = GetClangDeclContextContainingDIE (cu, die, &decl_ctx_die); | |||
3132 | if (decl_ctx_die) | |||
3133 | { | |||
3134 | clang::NamespaceDecl *clang_namespace_decl = namespace_decl->GetNamespaceDecl(); | |||
3135 | ||||
3136 | if (clang_namespace_decl) | |||
3137 | { | |||
3138 | if (decl_ctx_die->Tag() != DW_TAG_namespace) | |||
3139 | { | |||
3140 | if (log) | |||
3141 | GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent is not a namespace"); | |||
3142 | return false; | |||
3143 | } | |||
3144 | ||||
3145 | if (clang_namespace_decl == die_clang_decl_ctx) | |||
3146 | return true; | |||
3147 | else | |||
3148 | return false; | |||
3149 | } | |||
3150 | else | |||
3151 | { | |||
3152 | // We have a namespace_decl that was not NULL but it contained | |||
3153 | // a NULL "clang::NamespaceDecl", so this means the global namespace | |||
3154 | // So as long the contained decl context DIE isn't a namespace | |||
3155 | // we should be ok. | |||
3156 | if (decl_ctx_die->Tag() != DW_TAG_namespace) | |||
3157 | return true; | |||
3158 | } | |||
3159 | } | |||
3160 | ||||
3161 | if (log) | |||
3162 | GetObjectFile()->GetModule()->LogMessage(log, "Found a match, but its parent doesn't exist"); | |||
3163 | ||||
3164 | return false; | |||
3165 | } | |||
3166 | uint32_t | |||
3167 | SymbolFileDWARF::FindGlobalVariables (const ConstString &name, const lldb_private::ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables) | |||
3168 | { | |||
3169 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||
3170 | ||||
3171 | if (log) | |||
3172 | GetObjectFile()->GetModule()->LogMessage (log, | |||
3173 | "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables)", | |||
3174 | name.GetCString(), | |||
3175 | static_cast<const void*>(namespace_decl), | |||
3176 | append, max_matches); | |||
3177 | ||||
3178 | if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl)) | |||
3179 | return 0; | |||
3180 | ||||
3181 | DWARFDebugInfo* info = DebugInfo(); | |||
3182 | if (info == NULL__null) | |||
3183 | return 0; | |||
3184 | ||||
3185 | // If we aren't appending the results to this list, then clear the list | |||
3186 | if (!append) | |||
3187 | variables.Clear(); | |||
3188 | ||||
3189 | // Remember how many variables are in the list before we search in case | |||
3190 | // we are appending the results to a variable list. | |||
3191 | const uint32_t original_size = variables.GetSize(); | |||
3192 | ||||
3193 | DIEArray die_offsets; | |||
3194 | ||||
3195 | if (m_using_apple_tables) | |||
3196 | { | |||
3197 | if (m_apple_names_ap.get()) | |||
3198 | { | |||
3199 | const char *name_cstr = name.GetCString(); | |||
3200 | const char *base_name_start; | |||
3201 | const char *base_name_end = NULL__null; | |||
3202 | ||||
3203 | if (!CPPLanguageRuntime::StripNamespacesFromVariableName(name_cstr, base_name_start, base_name_end)) | |||
3204 | base_name_start = name_cstr; | |||
3205 | ||||
3206 | m_apple_names_ap->FindByName (base_name_start, die_offsets); | |||
3207 | } | |||
3208 | } | |||
3209 | else | |||
3210 | { | |||
3211 | // Index the DWARF if we haven't already | |||
3212 | if (!m_indexed) | |||
3213 | Index (); | |||
3214 | ||||
3215 | m_global_index.Find (name, die_offsets); | |||
3216 | } | |||
3217 | ||||
3218 | const size_t num_die_matches = die_offsets.size(); | |||
3219 | if (num_die_matches) | |||
3220 | { | |||
3221 | SymbolContext sc; | |||
3222 | sc.module_sp = m_obj_file->GetModule(); | |||
3223 | assert (sc.module_sp)((sc.module_sp) ? static_cast<void> (0) : __assert_fail ("sc.module_sp", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3223, __PRETTY_FUNCTION__)); | |||
3224 | ||||
3225 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
3226 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||
3227 | const DWARFDebugInfoEntry* die = NULL__null; | |||
3228 | bool done = false; | |||
3229 | for (size_t i=0; i<num_die_matches && !done; ++i) | |||
3230 | { | |||
3231 | const dw_offset_t die_offset = die_offsets[i]; | |||
3232 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
3233 | ||||
3234 | if (die) | |||
3235 | { | |||
3236 | switch (die->Tag()) | |||
3237 | { | |||
3238 | default: | |||
3239 | case DW_TAG_subprogram: | |||
3240 | case DW_TAG_inlined_subroutine: | |||
3241 | case DW_TAG_try_block: | |||
3242 | case DW_TAG_catch_block: | |||
3243 | break; | |||
3244 | ||||
3245 | case DW_TAG_variable: | |||
3246 | { | |||
3247 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX(4294967295U)); | |||
3248 | ||||
3249 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||
3250 | continue; | |||
3251 | ||||
3252 | ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS(18446744073709551615UL), die, false, false, &variables); | |||
3253 | ||||
3254 | if (variables.GetSize() - original_size >= max_matches) | |||
3255 | done = true; | |||
3256 | } | |||
3257 | break; | |||
3258 | } | |||
3259 | } | |||
3260 | else | |||
3261 | { | |||
3262 | if (m_using_apple_tables) | |||
3263 | { | |||
3264 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')\n", | |||
3265 | die_offset, name.GetCString()); | |||
3266 | } | |||
3267 | } | |||
3268 | } | |||
3269 | } | |||
3270 | ||||
3271 | // Return the number of variable that were appended to the list | |||
3272 | const uint32_t num_matches = variables.GetSize() - original_size; | |||
3273 | if (log && num_matches > 0) | |||
3274 | { | |||
3275 | GetObjectFile()->GetModule()->LogMessage (log, | |||
3276 | "SymbolFileDWARF::FindGlobalVariables (name=\"%s\", namespace_decl=%p, append=%u, max_matches=%u, variables) => %u", | |||
3277 | name.GetCString(), | |||
3278 | static_cast<const void*>(namespace_decl), | |||
3279 | append, max_matches, | |||
3280 | num_matches); | |||
3281 | } | |||
3282 | return num_matches; | |||
3283 | } | |||
3284 | ||||
3285 | uint32_t | |||
3286 | SymbolFileDWARF::FindGlobalVariables(const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables) | |||
3287 | { | |||
3288 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||
3289 | ||||
3290 | if (log) | |||
3291 | { | |||
3292 | GetObjectFile()->GetModule()->LogMessage (log, | |||
3293 | "SymbolFileDWARF::FindGlobalVariables (regex=\"%s\", append=%u, max_matches=%u, variables)", | |||
3294 | regex.GetText(), append, | |||
3295 | max_matches); | |||
3296 | } | |||
3297 | ||||
3298 | DWARFDebugInfo* info = DebugInfo(); | |||
3299 | if (info == NULL__null) | |||
3300 | return 0; | |||
3301 | ||||
3302 | // If we aren't appending the results to this list, then clear the list | |||
3303 | if (!append) | |||
3304 | variables.Clear(); | |||
3305 | ||||
3306 | // Remember how many variables are in the list before we search in case | |||
3307 | // we are appending the results to a variable list. | |||
3308 | const uint32_t original_size = variables.GetSize(); | |||
3309 | ||||
3310 | DIEArray die_offsets; | |||
3311 | ||||
3312 | if (m_using_apple_tables) | |||
3313 | { | |||
3314 | if (m_apple_names_ap.get()) | |||
3315 | { | |||
3316 | DWARFMappedHash::DIEInfoArray hash_data_array; | |||
3317 | if (m_apple_names_ap->AppendAllDIEsThatMatchingRegex (regex, hash_data_array)) | |||
3318 | DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets); | |||
3319 | } | |||
3320 | } | |||
3321 | else | |||
3322 | { | |||
3323 | // Index the DWARF if we haven't already | |||
3324 | if (!m_indexed) | |||
3325 | Index (); | |||
3326 | ||||
3327 | m_global_index.Find (regex, die_offsets); | |||
3328 | } | |||
3329 | ||||
3330 | SymbolContext sc; | |||
3331 | sc.module_sp = m_obj_file->GetModule(); | |||
3332 | assert (sc.module_sp)((sc.module_sp) ? static_cast<void> (0) : __assert_fail ("sc.module_sp", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3332, __PRETTY_FUNCTION__)); | |||
3333 | ||||
3334 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||
3335 | const DWARFDebugInfoEntry* die = NULL__null; | |||
3336 | const size_t num_matches = die_offsets.size(); | |||
3337 | if (num_matches) | |||
3338 | { | |||
3339 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
3340 | for (size_t i=0; i<num_matches; ++i) | |||
3341 | { | |||
3342 | const dw_offset_t die_offset = die_offsets[i]; | |||
3343 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
3344 | ||||
3345 | if (die) | |||
3346 | { | |||
3347 | sc.comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX(4294967295U)); | |||
3348 | ||||
3349 | ParseVariables(sc, dwarf_cu, LLDB_INVALID_ADDRESS(18446744073709551615UL), die, false, false, &variables); | |||
3350 | ||||
3351 | if (variables.GetSize() - original_size >= max_matches) | |||
3352 | break; | |||
3353 | } | |||
3354 | else | |||
3355 | { | |||
3356 | if (m_using_apple_tables) | |||
3357 | { | |||
3358 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for regex '%s')\n", | |||
3359 | die_offset, regex.GetText()); | |||
3360 | } | |||
3361 | } | |||
3362 | } | |||
3363 | } | |||
3364 | ||||
3365 | // Return the number of variable that were appended to the list | |||
3366 | return variables.GetSize() - original_size; | |||
3367 | } | |||
3368 | ||||
3369 | ||||
3370 | bool | |||
3371 | SymbolFileDWARF::ResolveFunction (dw_offset_t die_offset, | |||
3372 | DWARFCompileUnit *&dwarf_cu, | |||
3373 | SymbolContextList& sc_list) | |||
3374 | { | |||
3375 | const DWARFDebugInfoEntry *die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
3376 | return ResolveFunction (dwarf_cu, die, sc_list); | |||
3377 | } | |||
3378 | ||||
3379 | ||||
3380 | bool | |||
3381 | SymbolFileDWARF::ResolveFunction (DWARFCompileUnit *cu, | |||
3382 | const DWARFDebugInfoEntry *die, | |||
3383 | SymbolContextList& sc_list) | |||
3384 | { | |||
3385 | SymbolContext sc; | |||
3386 | ||||
3387 | if (die == NULL__null) | |||
3388 | return false; | |||
3389 | ||||
3390 | // If we were passed a die that is not a function, just return false... | |||
3391 | if (die->Tag() != DW_TAG_subprogram && die->Tag() != DW_TAG_inlined_subroutine) | |||
3392 | return false; | |||
3393 | ||||
3394 | const DWARFDebugInfoEntry* inlined_die = NULL__null; | |||
3395 | if (die->Tag() == DW_TAG_inlined_subroutine) | |||
3396 | { | |||
3397 | inlined_die = die; | |||
3398 | ||||
3399 | while ((die = die->GetParent()) != NULL__null) | |||
3400 | { | |||
3401 | if (die->Tag() == DW_TAG_subprogram) | |||
3402 | break; | |||
3403 | } | |||
3404 | } | |||
3405 | assert (die->Tag() == DW_TAG_subprogram)((die->Tag() == DW_TAG_subprogram) ? static_cast<void> (0) : __assert_fail ("die->Tag() == DW_TAG_subprogram", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3405, __PRETTY_FUNCTION__)); | |||
3406 | if (GetFunction (cu, die, sc)) | |||
3407 | { | |||
3408 | Address addr; | |||
3409 | // Parse all blocks if needed | |||
3410 | if (inlined_die) | |||
3411 | { | |||
3412 | sc.block = sc.function->GetBlock (true).FindBlockByID (MakeUserID(inlined_die->GetOffset())); | |||
3413 | assert (sc.block != NULL)((sc.block != __null) ? static_cast<void> (0) : __assert_fail ("sc.block != __null", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3413, __PRETTY_FUNCTION__)); | |||
3414 | if (sc.block->GetStartAddress (addr) == false) | |||
3415 | addr.Clear(); | |||
3416 | } | |||
3417 | else | |||
3418 | { | |||
3419 | sc.block = NULL__null; | |||
3420 | addr = sc.function->GetAddressRange().GetBaseAddress(); | |||
3421 | } | |||
3422 | ||||
3423 | if (addr.IsValid()) | |||
3424 | { | |||
3425 | sc_list.Append(sc); | |||
3426 | return true; | |||
3427 | } | |||
3428 | } | |||
3429 | ||||
3430 | return false; | |||
3431 | } | |||
3432 | ||||
3433 | void | |||
3434 | SymbolFileDWARF::FindFunctions (const ConstString &name, | |||
3435 | const NameToDIE &name_to_die, | |||
3436 | SymbolContextList& sc_list) | |||
3437 | { | |||
3438 | DIEArray die_offsets; | |||
3439 | if (name_to_die.Find (name, die_offsets)) | |||
3440 | { | |||
3441 | ParseFunctions (die_offsets, sc_list); | |||
3442 | } | |||
3443 | } | |||
3444 | ||||
3445 | ||||
3446 | void | |||
3447 | SymbolFileDWARF::FindFunctions (const RegularExpression ®ex, | |||
3448 | const NameToDIE &name_to_die, | |||
3449 | SymbolContextList& sc_list) | |||
3450 | { | |||
3451 | DIEArray die_offsets; | |||
3452 | if (name_to_die.Find (regex, die_offsets)) | |||
3453 | { | |||
3454 | ParseFunctions (die_offsets, sc_list); | |||
3455 | } | |||
3456 | } | |||
3457 | ||||
3458 | ||||
3459 | void | |||
3460 | SymbolFileDWARF::FindFunctions (const RegularExpression ®ex, | |||
3461 | const DWARFMappedHash::MemoryTable &memory_table, | |||
3462 | SymbolContextList& sc_list) | |||
3463 | { | |||
3464 | DIEArray die_offsets; | |||
3465 | DWARFMappedHash::DIEInfoArray hash_data_array; | |||
3466 | if (memory_table.AppendAllDIEsThatMatchingRegex (regex, hash_data_array)) | |||
3467 | { | |||
3468 | DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets); | |||
3469 | ParseFunctions (die_offsets, sc_list); | |||
3470 | } | |||
3471 | } | |||
3472 | ||||
3473 | void | |||
3474 | SymbolFileDWARF::ParseFunctions (const DIEArray &die_offsets, | |||
3475 | SymbolContextList& sc_list) | |||
3476 | { | |||
3477 | const size_t num_matches = die_offsets.size(); | |||
3478 | if (num_matches) | |||
3479 | { | |||
3480 | SymbolContext sc; | |||
3481 | ||||
3482 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||
3483 | for (size_t i=0; i<num_matches; ++i) | |||
3484 | { | |||
3485 | const dw_offset_t die_offset = die_offsets[i]; | |||
3486 | ResolveFunction (die_offset, dwarf_cu, sc_list); | |||
3487 | } | |||
3488 | } | |||
3489 | } | |||
3490 | ||||
3491 | bool | |||
3492 | SymbolFileDWARF::FunctionDieMatchesPartialName (const DWARFDebugInfoEntry* die, | |||
3493 | const DWARFCompileUnit *dwarf_cu, | |||
3494 | uint32_t name_type_mask, | |||
3495 | const char *partial_name, | |||
3496 | const char *base_name_start, | |||
3497 | const char *base_name_end) | |||
3498 | { | |||
3499 | // If we are looking only for methods, throw away all the ones that are or aren't in C++ classes: | |||
3500 | if (name_type_mask == eFunctionNameTypeMethod || name_type_mask == eFunctionNameTypeBase) | |||
3501 | { | |||
3502 | clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIEOffset(die->GetOffset()); | |||
3503 | if (!containing_decl_ctx) | |||
3504 | return false; | |||
3505 | ||||
3506 | bool is_cxx_method = DeclKindIsCXXClass(containing_decl_ctx->getDeclKind()); | |||
3507 | ||||
3508 | if (name_type_mask == eFunctionNameTypeMethod) | |||
3509 | { | |||
3510 | if (is_cxx_method == false) | |||
3511 | return false; | |||
3512 | } | |||
3513 | ||||
3514 | if (name_type_mask == eFunctionNameTypeBase) | |||
3515 | { | |||
3516 | if (is_cxx_method == true) | |||
3517 | return false; | |||
3518 | } | |||
3519 | } | |||
3520 | ||||
3521 | // Now we need to check whether the name we got back for this type matches the extra specifications | |||
3522 | // that were in the name we're looking up: | |||
3523 | if (base_name_start != partial_name || *base_name_end != '\0') | |||
3524 | { | |||
3525 | // First see if the stuff to the left matches the full name. To do that let's see if | |||
3526 | // we can pull out the mips linkage name attribute: | |||
3527 | ||||
3528 | Mangled best_name; | |||
3529 | DWARFDebugInfoEntry::Attributes attributes; | |||
3530 | DWARFFormValue form_value; | |||
3531 | die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||
3532 | uint32_t idx = attributes.FindAttributeIndex(DW_AT_MIPS_linkage_name); | |||
3533 | if (idx == UINT32_MAX(4294967295U)) | |||
3534 | idx = attributes.FindAttributeIndex(DW_AT_linkage_name); | |||
3535 | if (idx != UINT32_MAX(4294967295U)) | |||
3536 | { | |||
3537 | if (attributes.ExtractFormValueAtIndex(this, idx, form_value)) | |||
3538 | { | |||
3539 | const char *mangled_name = form_value.AsCString(&get_debug_str_data()); | |||
3540 | if (mangled_name) | |||
3541 | best_name.SetValue (ConstString(mangled_name), true); | |||
3542 | } | |||
3543 | } | |||
3544 | ||||
3545 | if (!best_name) | |||
3546 | { | |||
3547 | idx = attributes.FindAttributeIndex(DW_AT_name); | |||
3548 | if (idx != UINT32_MAX(4294967295U) && attributes.ExtractFormValueAtIndex(this, idx, form_value)) | |||
3549 | { | |||
3550 | const char *name = form_value.AsCString(&get_debug_str_data()); | |||
3551 | best_name.SetValue (ConstString(name), false); | |||
3552 | } | |||
3553 | } | |||
3554 | ||||
3555 | if (best_name.GetDemangledName()) | |||
3556 | { | |||
3557 | const char *demangled = best_name.GetDemangledName().GetCString(); | |||
3558 | if (demangled) | |||
3559 | { | |||
3560 | std::string name_no_parens(partial_name, base_name_end - partial_name); | |||
3561 | const char *partial_in_demangled = strstr (demangled, name_no_parens.c_str()); | |||
3562 | if (partial_in_demangled == NULL__null) | |||
3563 | return false; | |||
3564 | else | |||
3565 | { | |||
3566 | // Sort out the case where our name is something like "Process::Destroy" and the match is | |||
3567 | // "SBProcess::Destroy" - that shouldn't be a match. We should really always match on | |||
3568 | // namespace boundaries... | |||
3569 | ||||
3570 | if (partial_name[0] == ':' && partial_name[1] == ':') | |||
3571 | { | |||
3572 | // The partial name was already on a namespace boundary so all matches are good. | |||
3573 | return true; | |||
3574 | } | |||
3575 | else if (partial_in_demangled == demangled) | |||
3576 | { | |||
3577 | // They both start the same, so this is an good match. | |||
3578 | return true; | |||
3579 | } | |||
3580 | else | |||
3581 | { | |||
3582 | if (partial_in_demangled - demangled == 1) | |||
3583 | { | |||
3584 | // Only one character difference, can't be a namespace boundary... | |||
3585 | return false; | |||
3586 | } | |||
3587 | else if (*(partial_in_demangled - 1) == ':' && *(partial_in_demangled - 2) == ':') | |||
3588 | { | |||
3589 | // We are on a namespace boundary, so this is also good. | |||
3590 | return true; | |||
3591 | } | |||
3592 | else | |||
3593 | return false; | |||
3594 | } | |||
3595 | } | |||
3596 | } | |||
3597 | } | |||
3598 | } | |||
3599 | ||||
3600 | return true; | |||
3601 | } | |||
3602 | ||||
3603 | uint32_t | |||
3604 | SymbolFileDWARF::FindFunctions (const ConstString &name, | |||
3605 | const lldb_private::ClangNamespaceDecl *namespace_decl, | |||
3606 | uint32_t name_type_mask, | |||
3607 | bool include_inlines, | |||
3608 | bool append, | |||
3609 | SymbolContextList& sc_list) | |||
3610 | { | |||
3611 | Timer scoped_timer (__PRETTY_FUNCTION__, | |||
3612 | "SymbolFileDWARF::FindFunctions (name = '%s')", | |||
3613 | name.AsCString()); | |||
3614 | ||||
3615 | // eFunctionNameTypeAuto should be pre-resolved by a call to Module::PrepareForFunctionNameLookup() | |||
3616 | assert ((name_type_mask & eFunctionNameTypeAuto) == 0)(((name_type_mask & eFunctionNameTypeAuto) == 0) ? static_cast <void> (0) : __assert_fail ("(name_type_mask & eFunctionNameTypeAuto) == 0" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 3616, __PRETTY_FUNCTION__)); | |||
3617 | ||||
3618 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||
3619 | ||||
3620 | if (log) | |||
3621 | { | |||
3622 | GetObjectFile()->GetModule()->LogMessage (log, | |||
3623 | "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, append=%u, sc_list)", | |||
3624 | name.GetCString(), | |||
3625 | name_type_mask, | |||
3626 | append); | |||
3627 | } | |||
3628 | ||||
3629 | // If we aren't appending the results to this list, then clear the list | |||
3630 | if (!append) | |||
3631 | sc_list.Clear(); | |||
3632 | ||||
3633 | if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl)) | |||
3634 | return 0; | |||
3635 | ||||
3636 | // If name is empty then we won't find anything. | |||
3637 | if (name.IsEmpty()) | |||
3638 | return 0; | |||
3639 | ||||
3640 | // Remember how many sc_list are in the list before we search in case | |||
3641 | // we are appending the results to a variable list. | |||
3642 | ||||
3643 | const char *name_cstr = name.GetCString(); | |||
3644 | ||||
3645 | const uint32_t original_size = sc_list.GetSize(); | |||
3646 | ||||
3647 | DWARFDebugInfo* info = DebugInfo(); | |||
3648 | if (info == NULL__null) | |||
3649 | return 0; | |||
3650 | ||||
3651 | DWARFCompileUnit *dwarf_cu = NULL__null; | |||
3652 | std::set<const DWARFDebugInfoEntry *> resolved_dies; | |||
3653 | if (m_using_apple_tables) | |||
3654 | { | |||
3655 | if (m_apple_names_ap.get()) | |||
3656 | { | |||
3657 | ||||
3658 | DIEArray die_offsets; | |||
3659 | ||||
3660 | uint32_t num_matches = 0; | |||
3661 | ||||
3662 | if (name_type_mask & eFunctionNameTypeFull) | |||
3663 | { | |||
3664 | // If they asked for the full name, match what they typed. At some point we may | |||
3665 | // want to canonicalize this (strip double spaces, etc. For now, we just add all the | |||
3666 | // dies that we find by exact match. | |||
3667 | num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets); | |||
3668 | for (uint32_t i = 0; i < num_matches; i++) | |||
3669 | { | |||
3670 | const dw_offset_t die_offset = die_offsets[i]; | |||
3671 | const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
3672 | if (die) | |||
3673 | { | |||
3674 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||
3675 | continue; | |||
3676 | ||||
3677 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||
3678 | continue; | |||
3679 | ||||
3680 | if (resolved_dies.find(die) == resolved_dies.end()) | |||
3681 | { | |||
3682 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||
3683 | resolved_dies.insert(die); | |||
3684 | } | |||
3685 | } | |||
3686 | else | |||
3687 | { | |||
3688 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')", | |||
3689 | die_offset, name_cstr); | |||
3690 | } | |||
3691 | } | |||
3692 | } | |||
3693 | ||||
3694 | if (name_type_mask & eFunctionNameTypeSelector) | |||
3695 | { | |||
3696 | if (namespace_decl && *namespace_decl) | |||
3697 | return 0; // no selectors in namespaces | |||
3698 | ||||
3699 | num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets); | |||
3700 | // Now make sure these are actually ObjC methods. In this case we can simply look up the name, | |||
3701 | // and if it is an ObjC method name, we're good. | |||
3702 | ||||
3703 | for (uint32_t i = 0; i < num_matches; i++) | |||
3704 | { | |||
3705 | const dw_offset_t die_offset = die_offsets[i]; | |||
3706 | const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
3707 | if (die) | |||
3708 | { | |||
3709 | const char *die_name = die->GetName(this, dwarf_cu); | |||
3710 | if (ObjCLanguageRuntime::IsPossibleObjCMethodName(die_name)) | |||
3711 | { | |||
3712 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||
3713 | continue; | |||
3714 | ||||
3715 | if (resolved_dies.find(die) == resolved_dies.end()) | |||
3716 | { | |||
3717 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||
3718 | resolved_dies.insert(die); | |||
3719 | } | |||
3720 | } | |||
3721 | } | |||
3722 | else | |||
3723 | { | |||
3724 | GetObjectFile()->GetModule()->ReportError ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')", | |||
3725 | die_offset, name_cstr); | |||
3726 | } | |||
3727 | } | |||
3728 | die_offsets.clear(); | |||
3729 | } | |||
3730 | ||||
3731 | if (((name_type_mask & eFunctionNameTypeMethod) && !namespace_decl) || name_type_mask & eFunctionNameTypeBase) | |||
3732 | { | |||
3733 | // The apple_names table stores just the "base name" of C++ methods in the table. So we have to | |||
3734 | // extract the base name, look that up, and if there is any other information in the name we were | |||
3735 | // passed in we have to post-filter based on that. | |||
3736 | ||||
3737 | // FIXME: Arrange the logic above so that we don't calculate the base name twice: | |||
3738 | num_matches = m_apple_names_ap->FindByName (name_cstr, die_offsets); | |||
3739 | ||||
3740 | for (uint32_t i = 0; i < num_matches; i++) | |||
3741 | { | |||
3742 | const dw_offset_t die_offset = die_offsets[i]; | |||
3743 | const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
3744 | if (die) | |||
3745 | { | |||
3746 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||
3747 | continue; | |||
3748 | ||||
3749 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||
3750 | continue; | |||
3751 | ||||
3752 | // If we get to here, the die is good, and we should add it: | |||
3753 | if (resolved_dies.find(die) == resolved_dies.end()) | |||
3754 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||
3755 | { | |||
3756 | bool keep_die = true; | |||
3757 | if ((name_type_mask & (eFunctionNameTypeBase|eFunctionNameTypeMethod)) != (eFunctionNameTypeBase|eFunctionNameTypeMethod)) | |||
3758 | { | |||
3759 | // We are looking for either basenames or methods, so we need to | |||
3760 | // trim out the ones we won't want by looking at the type | |||
3761 | SymbolContext sc; | |||
3762 | if (sc_list.GetLastContext(sc)) | |||
3763 | { | |||
3764 | if (sc.block) | |||
3765 | { | |||
3766 | // We have an inlined function | |||
3767 | } | |||
3768 | else if (sc.function) | |||
3769 | { | |||
3770 | Type *type = sc.function->GetType(); | |||
3771 | ||||
3772 | if (type) | |||
3773 | { | |||
3774 | clang::DeclContext* decl_ctx = GetClangDeclContextContainingTypeUID (type->GetID()); | |||
3775 | if (decl_ctx->isRecord()) | |||
3776 | { | |||
3777 | if (name_type_mask & eFunctionNameTypeBase) | |||
3778 | { | |||
3779 | sc_list.RemoveContextAtIndex(sc_list.GetSize()-1); | |||
3780 | keep_die = false; | |||
3781 | } | |||
3782 | } | |||
3783 | else | |||
3784 | { | |||
3785 | if (name_type_mask & eFunctionNameTypeMethod) | |||
3786 | { | |||
3787 | sc_list.RemoveContextAtIndex(sc_list.GetSize()-1); | |||
3788 | keep_die = false; | |||
3789 | } | |||
3790 | } | |||
3791 | } | |||
3792 | else | |||
3793 | { | |||
3794 | GetObjectFile()->GetModule()->ReportWarning ("function at die offset 0x%8.8x had no function type", | |||
3795 | die_offset); | |||
3796 | } | |||
3797 | } | |||
3798 | } | |||
3799 | } | |||
3800 | if (keep_die) | |||
3801 | resolved_dies.insert(die); | |||
3802 | } | |||
3803 | } | |||
3804 | else | |||
3805 | { | |||
3806 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x for '%s')", | |||
3807 | die_offset, name_cstr); | |||
3808 | } | |||
3809 | } | |||
3810 | die_offsets.clear(); | |||
3811 | } | |||
3812 | } | |||
3813 | } | |||
3814 | else | |||
3815 | { | |||
3816 | ||||
3817 | // Index the DWARF if we haven't already | |||
3818 | if (!m_indexed) | |||
3819 | Index (); | |||
3820 | ||||
3821 | if (name_type_mask & eFunctionNameTypeFull) | |||
3822 | { | |||
3823 | FindFunctions (name, m_function_fullname_index, sc_list); | |||
3824 | ||||
3825 | // FIXME Temporary workaround for global/anonymous namespace | |||
3826 | // functions on FreeBSD and Linux | |||
3827 | #if defined (__FreeBSD__) || defined (__linux__1) | |||
3828 | // If we didn't find any functions in the global namespace try | |||
3829 | // looking in the basename index but ignore any returned | |||
3830 | // functions that have a namespace (ie. mangled names starting with | |||
3831 | // '_ZN') but keep functions which have an anonymous namespace | |||
3832 | if (sc_list.GetSize() == 0) | |||
3833 | { | |||
3834 | SymbolContextList temp_sc_list; | |||
3835 | FindFunctions (name, m_function_basename_index, temp_sc_list); | |||
3836 | if (!namespace_decl) | |||
3837 | { | |||
3838 | SymbolContext sc; | |||
3839 | for (uint32_t i = 0; i < temp_sc_list.GetSize(); i++) | |||
3840 | { | |||
3841 | if (temp_sc_list.GetContextAtIndex(i, sc)) | |||
3842 | { | |||
3843 | ConstString mangled_name = sc.GetFunctionName(Mangled::ePreferMangled); | |||
3844 | ConstString demangled_name = sc.GetFunctionName(Mangled::ePreferDemangled); | |||
3845 | if (strncmp(mangled_name.GetCString(), "_ZN", 3) || | |||
3846 | !strncmp(demangled_name.GetCString(), "(anonymous namespace)", 21)) | |||
3847 | { | |||
3848 | sc_list.Append(sc); | |||
3849 | } | |||
3850 | } | |||
3851 | } | |||
3852 | } | |||
3853 | } | |||
3854 | #endif | |||
3855 | } | |||
3856 | DIEArray die_offsets; | |||
3857 | DWARFCompileUnit *dwarf_cu = NULL__null; | |||
3858 | ||||
3859 | if (name_type_mask & eFunctionNameTypeBase) | |||
3860 | { | |||
3861 | uint32_t num_base = m_function_basename_index.Find(name, die_offsets); | |||
3862 | for (uint32_t i = 0; i < num_base; i++) | |||
3863 | { | |||
3864 | const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu); | |||
3865 | if (die) | |||
3866 | { | |||
3867 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||
3868 | continue; | |||
3869 | ||||
3870 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||
3871 | continue; | |||
3872 | ||||
3873 | // If we get to here, the die is good, and we should add it: | |||
3874 | if (resolved_dies.find(die) == resolved_dies.end()) | |||
3875 | { | |||
3876 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||
3877 | resolved_dies.insert(die); | |||
3878 | } | |||
3879 | } | |||
3880 | } | |||
3881 | die_offsets.clear(); | |||
3882 | } | |||
3883 | ||||
3884 | if (name_type_mask & eFunctionNameTypeMethod) | |||
3885 | { | |||
3886 | if (namespace_decl && *namespace_decl) | |||
3887 | return 0; // no methods in namespaces | |||
3888 | ||||
3889 | uint32_t num_base = m_function_method_index.Find(name, die_offsets); | |||
3890 | { | |||
3891 | for (uint32_t i = 0; i < num_base; i++) | |||
3892 | { | |||
3893 | const DWARFDebugInfoEntry* die = info->GetDIEPtrWithCompileUnitHint (die_offsets[i], &dwarf_cu); | |||
3894 | if (die) | |||
3895 | { | |||
3896 | if (!include_inlines && die->Tag() == DW_TAG_inlined_subroutine) | |||
3897 | continue; | |||
3898 | ||||
3899 | // If we get to here, the die is good, and we should add it: | |||
3900 | if (resolved_dies.find(die) == resolved_dies.end()) | |||
3901 | { | |||
3902 | if (ResolveFunction (dwarf_cu, die, sc_list)) | |||
3903 | resolved_dies.insert(die); | |||
3904 | } | |||
3905 | } | |||
3906 | } | |||
3907 | } | |||
3908 | die_offsets.clear(); | |||
3909 | } | |||
3910 | ||||
3911 | if ((name_type_mask & eFunctionNameTypeSelector) && (!namespace_decl || !*namespace_decl)) | |||
3912 | { | |||
3913 | FindFunctions (name, m_function_selector_index, sc_list); | |||
3914 | } | |||
3915 | ||||
3916 | } | |||
3917 | ||||
3918 | // Return the number of variable that were appended to the list | |||
3919 | const uint32_t num_matches = sc_list.GetSize() - original_size; | |||
3920 | ||||
3921 | if (log && num_matches > 0) | |||
3922 | { | |||
3923 | GetObjectFile()->GetModule()->LogMessage (log, | |||
3924 | "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, append=%u, sc_list) => %u", | |||
3925 | name.GetCString(), | |||
3926 | name_type_mask, | |||
3927 | append, | |||
3928 | num_matches); | |||
3929 | } | |||
3930 | return num_matches; | |||
3931 | } | |||
3932 | ||||
3933 | uint32_t | |||
3934 | SymbolFileDWARF::FindFunctions(const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list) | |||
3935 | { | |||
3936 | Timer scoped_timer (__PRETTY_FUNCTION__, | |||
3937 | "SymbolFileDWARF::FindFunctions (regex = '%s')", | |||
3938 | regex.GetText()); | |||
3939 | ||||
3940 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||
3941 | ||||
3942 | if (log) | |||
3943 | { | |||
3944 | GetObjectFile()->GetModule()->LogMessage (log, | |||
3945 | "SymbolFileDWARF::FindFunctions (regex=\"%s\", append=%u, sc_list)", | |||
3946 | regex.GetText(), | |||
3947 | append); | |||
3948 | } | |||
3949 | ||||
3950 | ||||
3951 | // If we aren't appending the results to this list, then clear the list | |||
3952 | if (!append) | |||
3953 | sc_list.Clear(); | |||
3954 | ||||
3955 | // Remember how many sc_list are in the list before we search in case | |||
3956 | // we are appending the results to a variable list. | |||
3957 | uint32_t original_size = sc_list.GetSize(); | |||
3958 | ||||
3959 | if (m_using_apple_tables) | |||
3960 | { | |||
3961 | if (m_apple_names_ap.get()) | |||
3962 | FindFunctions (regex, *m_apple_names_ap, sc_list); | |||
3963 | } | |||
3964 | else | |||
3965 | { | |||
3966 | // Index the DWARF if we haven't already | |||
3967 | if (!m_indexed) | |||
3968 | Index (); | |||
3969 | ||||
3970 | FindFunctions (regex, m_function_basename_index, sc_list); | |||
3971 | ||||
3972 | FindFunctions (regex, m_function_fullname_index, sc_list); | |||
3973 | } | |||
3974 | ||||
3975 | // Return the number of variable that were appended to the list | |||
3976 | return sc_list.GetSize() - original_size; | |||
3977 | } | |||
3978 | ||||
3979 | uint32_t | |||
3980 | SymbolFileDWARF::FindTypes (const SymbolContext& sc, | |||
3981 | const ConstString &name, | |||
3982 | const lldb_private::ClangNamespaceDecl *namespace_decl, | |||
3983 | bool append, | |||
3984 | uint32_t max_matches, | |||
3985 | TypeList& types) | |||
3986 | { | |||
3987 | DWARFDebugInfo* info = DebugInfo(); | |||
3988 | if (info == NULL__null) | |||
3989 | return 0; | |||
3990 | ||||
3991 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||
3992 | ||||
3993 | if (log) | |||
3994 | { | |||
3995 | if (namespace_decl) | |||
3996 | GetObjectFile()->GetModule()->LogMessage (log, | |||
3997 | "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list)", | |||
3998 | name.GetCString(), | |||
3999 | static_cast<void*>(namespace_decl->GetNamespaceDecl()), | |||
4000 | namespace_decl->GetQualifiedName().c_str(), | |||
4001 | append, max_matches); | |||
4002 | else | |||
4003 | GetObjectFile()->GetModule()->LogMessage (log, | |||
4004 | "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list)", | |||
4005 | name.GetCString(), append, | |||
4006 | max_matches); | |||
4007 | } | |||
4008 | ||||
4009 | // If we aren't appending the results to this list, then clear the list | |||
4010 | if (!append) | |||
4011 | types.Clear(); | |||
4012 | ||||
4013 | if (!NamespaceDeclMatchesThisSymbolFile(namespace_decl)) | |||
4014 | return 0; | |||
4015 | ||||
4016 | DIEArray die_offsets; | |||
4017 | ||||
4018 | if (m_using_apple_tables) | |||
4019 | { | |||
4020 | if (m_apple_types_ap.get()) | |||
4021 | { | |||
4022 | const char *name_cstr = name.GetCString(); | |||
4023 | m_apple_types_ap->FindByName (name_cstr, die_offsets); | |||
4024 | } | |||
4025 | } | |||
4026 | else | |||
4027 | { | |||
4028 | if (!m_indexed) | |||
4029 | Index (); | |||
4030 | ||||
4031 | m_type_index.Find (name, die_offsets); | |||
4032 | } | |||
4033 | ||||
4034 | const size_t num_die_matches = die_offsets.size(); | |||
4035 | ||||
4036 | if (num_die_matches) | |||
4037 | { | |||
4038 | const uint32_t initial_types_size = types.GetSize(); | |||
4039 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||
4040 | const DWARFDebugInfoEntry* die = NULL__null; | |||
4041 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
4042 | for (size_t i=0; i<num_die_matches; ++i) | |||
4043 | { | |||
4044 | const dw_offset_t die_offset = die_offsets[i]; | |||
4045 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
4046 | ||||
4047 | if (die) | |||
4048 | { | |||
4049 | if (namespace_decl && !DIEIsInNamespace (namespace_decl, dwarf_cu, die)) | |||
4050 | continue; | |||
4051 | ||||
4052 | Type *matching_type = ResolveType (dwarf_cu, die); | |||
4053 | if (matching_type) | |||
4054 | { | |||
4055 | // We found a type pointer, now find the shared pointer form our type list | |||
4056 | types.InsertUnique (matching_type->shared_from_this()); | |||
4057 | if (types.GetSize() >= max_matches) | |||
4058 | break; | |||
4059 | } | |||
4060 | } | |||
4061 | else | |||
4062 | { | |||
4063 | if (m_using_apple_tables) | |||
4064 | { | |||
4065 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n", | |||
4066 | die_offset, name.GetCString()); | |||
4067 | } | |||
4068 | } | |||
4069 | ||||
4070 | } | |||
4071 | const uint32_t num_matches = types.GetSize() - initial_types_size; | |||
4072 | if (log && num_matches) | |||
4073 | { | |||
4074 | if (namespace_decl) | |||
4075 | { | |||
4076 | GetObjectFile()->GetModule()->LogMessage (log, | |||
4077 | "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(%p) \"%s\", append=%u, max_matches=%u, type_list) => %u", | |||
4078 | name.GetCString(), | |||
4079 | static_cast<void*>(namespace_decl->GetNamespaceDecl()), | |||
4080 | namespace_decl->GetQualifiedName().c_str(), | |||
4081 | append, max_matches, | |||
4082 | num_matches); | |||
4083 | } | |||
4084 | else | |||
4085 | { | |||
4086 | GetObjectFile()->GetModule()->LogMessage (log, | |||
4087 | "SymbolFileDWARF::FindTypes (sc, name=\"%s\", clang::NamespaceDecl(NULL), append=%u, max_matches=%u, type_list) => %u", | |||
4088 | name.GetCString(), | |||
4089 | append, max_matches, | |||
4090 | num_matches); | |||
4091 | } | |||
4092 | } | |||
4093 | return num_matches; | |||
4094 | } | |||
4095 | return 0; | |||
4096 | } | |||
4097 | ||||
4098 | ||||
4099 | ClangNamespaceDecl | |||
4100 | SymbolFileDWARF::FindNamespace (const SymbolContext& sc, | |||
4101 | const ConstString &name, | |||
4102 | const lldb_private::ClangNamespaceDecl *parent_namespace_decl) | |||
4103 | { | |||
4104 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS(1u << 6))); | |||
4105 | ||||
4106 | if (log) | |||
4107 | { | |||
4108 | GetObjectFile()->GetModule()->LogMessage (log, | |||
4109 | "SymbolFileDWARF::FindNamespace (sc, name=\"%s\")", | |||
4110 | name.GetCString()); | |||
4111 | } | |||
4112 | ||||
4113 | if (!NamespaceDeclMatchesThisSymbolFile(parent_namespace_decl)) | |||
4114 | return ClangNamespaceDecl(); | |||
4115 | ||||
4116 | ClangNamespaceDecl namespace_decl; | |||
4117 | DWARFDebugInfo* info = DebugInfo(); | |||
4118 | if (info) | |||
4119 | { | |||
4120 | DIEArray die_offsets; | |||
4121 | ||||
4122 | // Index if we already haven't to make sure the compile units | |||
4123 | // get indexed and make their global DIE index list | |||
4124 | if (m_using_apple_tables) | |||
4125 | { | |||
4126 | if (m_apple_namespaces_ap.get()) | |||
4127 | { | |||
4128 | const char *name_cstr = name.GetCString(); | |||
4129 | m_apple_namespaces_ap->FindByName (name_cstr, die_offsets); | |||
4130 | } | |||
4131 | } | |||
4132 | else | |||
4133 | { | |||
4134 | if (!m_indexed) | |||
4135 | Index (); | |||
4136 | ||||
4137 | m_namespace_index.Find (name, die_offsets); | |||
4138 | } | |||
4139 | ||||
4140 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||
4141 | const DWARFDebugInfoEntry* die = NULL__null; | |||
4142 | const size_t num_matches = die_offsets.size(); | |||
4143 | if (num_matches) | |||
4144 | { | |||
4145 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
4146 | for (size_t i=0; i<num_matches; ++i) | |||
4147 | { | |||
4148 | const dw_offset_t die_offset = die_offsets[i]; | |||
4149 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
4150 | ||||
4151 | if (die) | |||
4152 | { | |||
4153 | if (parent_namespace_decl && !DIEIsInNamespace (parent_namespace_decl, dwarf_cu, die)) | |||
4154 | continue; | |||
4155 | ||||
4156 | clang::NamespaceDecl *clang_namespace_decl = ResolveNamespaceDIE (dwarf_cu, die); | |||
4157 | if (clang_namespace_decl) | |||
4158 | { | |||
4159 | namespace_decl.SetASTContext (GetClangASTContext().getASTContext()); | |||
4160 | namespace_decl.SetNamespaceDecl (clang_namespace_decl); | |||
4161 | break; | |||
4162 | } | |||
4163 | } | |||
4164 | else | |||
4165 | { | |||
4166 | if (m_using_apple_tables) | |||
4167 | { | |||
4168 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_namespaces accelerator table had bad die 0x%8.8x for '%s')\n", | |||
4169 | die_offset, name.GetCString()); | |||
4170 | } | |||
4171 | } | |||
4172 | ||||
4173 | } | |||
4174 | } | |||
4175 | } | |||
4176 | if (log && namespace_decl.GetNamespaceDecl()) | |||
4177 | { | |||
4178 | GetObjectFile()->GetModule()->LogMessage (log, | |||
4179 | "SymbolFileDWARF::FindNamespace (sc, name=\"%s\") => clang::NamespaceDecl(%p) \"%s\"", | |||
4180 | name.GetCString(), | |||
4181 | static_cast<const void*>(namespace_decl.GetNamespaceDecl()), | |||
4182 | namespace_decl.GetQualifiedName().c_str()); | |||
4183 | } | |||
4184 | ||||
4185 | return namespace_decl; | |||
4186 | } | |||
4187 | ||||
4188 | uint32_t | |||
4189 | SymbolFileDWARF::FindTypes(std::vector<dw_offset_t> die_offsets, uint32_t max_matches, TypeList& types) | |||
4190 | { | |||
4191 | // Remember how many sc_list are in the list before we search in case | |||
4192 | // we are appending the results to a variable list. | |||
4193 | uint32_t original_size = types.GetSize(); | |||
4194 | ||||
4195 | const uint32_t num_die_offsets = die_offsets.size(); | |||
4196 | // Parse all of the types we found from the pubtypes matches | |||
4197 | uint32_t i; | |||
4198 | uint32_t num_matches = 0; | |||
4199 | for (i = 0; i < num_die_offsets; ++i) | |||
4200 | { | |||
4201 | Type *matching_type = ResolveTypeUID (die_offsets[i]); | |||
4202 | if (matching_type) | |||
4203 | { | |||
4204 | // We found a type pointer, now find the shared pointer form our type list | |||
4205 | types.InsertUnique (matching_type->shared_from_this()); | |||
4206 | ++num_matches; | |||
4207 | if (num_matches >= max_matches) | |||
4208 | break; | |||
4209 | } | |||
4210 | } | |||
4211 | ||||
4212 | // Return the number of variable that were appended to the list | |||
4213 | return types.GetSize() - original_size; | |||
4214 | } | |||
4215 | ||||
4216 | ||||
4217 | size_t | |||
4218 | SymbolFileDWARF::ParseChildParameters (const SymbolContext& sc, | |||
4219 | clang::DeclContext *containing_decl_ctx, | |||
4220 | DWARFCompileUnit* dwarf_cu, | |||
4221 | const DWARFDebugInfoEntry *parent_die, | |||
4222 | bool skip_artificial, | |||
4223 | bool &is_static, | |||
4224 | bool &is_variadic, | |||
4225 | TypeList* type_list, | |||
4226 | std::vector<ClangASTType>& function_param_types, | |||
4227 | std::vector<clang::ParmVarDecl*>& function_param_decls, | |||
4228 | unsigned &type_quals) // , | |||
4229 | // ClangASTContext::TemplateParameterInfos &template_param_infos)) | |||
4230 | { | |||
4231 | if (parent_die == NULL__null) | |||
4232 | return 0; | |||
4233 | ||||
4234 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||
4235 | ||||
4236 | size_t arg_idx = 0; | |||
4237 | const DWARFDebugInfoEntry *die; | |||
4238 | for (die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||
4239 | { | |||
4240 | dw_tag_t tag = die->Tag(); | |||
4241 | switch (tag) | |||
4242 | { | |||
4243 | case DW_TAG_formal_parameter: | |||
4244 | { | |||
4245 | DWARFDebugInfoEntry::Attributes attributes; | |||
4246 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes); | |||
4247 | if (num_attributes > 0) | |||
4248 | { | |||
4249 | const char *name = NULL__null; | |||
4250 | Declaration decl; | |||
4251 | dw_offset_t param_type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
4252 | bool is_artificial = false; | |||
4253 | // one of None, Auto, Register, Extern, Static, PrivateExtern | |||
4254 | ||||
4255 | clang::StorageClass storage = clang::SC_None; | |||
4256 | uint32_t i; | |||
4257 | for (i=0; i<num_attributes; ++i) | |||
4258 | { | |||
4259 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
4260 | DWARFFormValue form_value; | |||
4261 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
4262 | { | |||
4263 | switch (attr) | |||
4264 | { | |||
4265 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
4266 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
4267 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
4268 | case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break; | |||
4269 | case DW_AT_type: param_type_die_offset = form_value.Reference(dwarf_cu); break; | |||
4270 | case DW_AT_artificial: is_artificial = form_value.Boolean(); break; | |||
4271 | case DW_AT_location: | |||
4272 | // if (form_value.BlockData()) | |||
4273 | // { | |||
4274 | // const DWARFDataExtractor& debug_info_data = debug_info(); | |||
4275 | // uint32_t block_length = form_value.Unsigned(); | |||
4276 | // DWARFDataExtractor location(debug_info_data, form_value.BlockData() - debug_info_data.GetDataStart(), block_length); | |||
4277 | // } | |||
4278 | // else | |||
4279 | // { | |||
4280 | // } | |||
4281 | // break; | |||
4282 | case DW_AT_const_value: | |||
4283 | case DW_AT_default_value: | |||
4284 | case DW_AT_description: | |||
4285 | case DW_AT_endianity: | |||
4286 | case DW_AT_is_optional: | |||
4287 | case DW_AT_segment: | |||
4288 | case DW_AT_variable_parameter: | |||
4289 | default: | |||
4290 | case DW_AT_abstract_origin: | |||
4291 | case DW_AT_sibling: | |||
4292 | break; | |||
4293 | } | |||
4294 | } | |||
4295 | } | |||
4296 | ||||
4297 | bool skip = false; | |||
4298 | if (skip_artificial) | |||
4299 | { | |||
4300 | if (is_artificial) | |||
4301 | { | |||
4302 | // In order to determine if a C++ member function is | |||
4303 | // "const" we have to look at the const-ness of "this"... | |||
4304 | // Ugly, but that | |||
4305 | if (arg_idx == 0) | |||
4306 | { | |||
4307 | if (DeclKindIsCXXClass(containing_decl_ctx->getDeclKind())) | |||
4308 | { | |||
4309 | // Often times compilers omit the "this" name for the | |||
4310 | // specification DIEs, so we can't rely upon the name | |||
4311 | // being in the formal parameter DIE... | |||
4312 | if (name == NULL__null || ::strcmp(name, "this")==0) | |||
4313 | { | |||
4314 | Type *this_type = ResolveTypeUID (param_type_die_offset); | |||
4315 | if (this_type) | |||
4316 | { | |||
4317 | uint32_t encoding_mask = this_type->GetEncodingMask(); | |||
4318 | if (encoding_mask & Type::eEncodingIsPointerUID) | |||
4319 | { | |||
4320 | is_static = false; | |||
4321 | ||||
4322 | if (encoding_mask & (1u << Type::eEncodingIsConstUID)) | |||
4323 | type_quals |= clang::Qualifiers::Const; | |||
4324 | if (encoding_mask & (1u << Type::eEncodingIsVolatileUID)) | |||
4325 | type_quals |= clang::Qualifiers::Volatile; | |||
4326 | } | |||
4327 | } | |||
4328 | } | |||
4329 | } | |||
4330 | } | |||
4331 | skip = true; | |||
4332 | } | |||
4333 | else | |||
4334 | { | |||
4335 | ||||
4336 | // HACK: Objective C formal parameters "self" and "_cmd" | |||
4337 | // are not marked as artificial in the DWARF... | |||
4338 | CompileUnit *comp_unit = GetCompUnitForDWARFCompUnit(dwarf_cu, UINT32_MAX(4294967295U)); | |||
4339 | if (comp_unit) | |||
4340 | { | |||
4341 | switch (comp_unit->GetLanguage()) | |||
4342 | { | |||
4343 | case eLanguageTypeObjC: | |||
4344 | case eLanguageTypeObjC_plus_plus: | |||
4345 | if (name && name[0] && (strcmp (name, "self") == 0 || strcmp (name, "_cmd") == 0)) | |||
4346 | skip = true; | |||
4347 | break; | |||
4348 | default: | |||
4349 | break; | |||
4350 | } | |||
4351 | } | |||
4352 | } | |||
4353 | } | |||
4354 | ||||
4355 | if (!skip) | |||
4356 | { | |||
4357 | Type *type = ResolveTypeUID(param_type_die_offset); | |||
4358 | if (type) | |||
4359 | { | |||
4360 | function_param_types.push_back (type->GetClangForwardType()); | |||
4361 | ||||
4362 | clang::ParmVarDecl *param_var_decl = GetClangASTContext().CreateParameterDeclaration (name, | |||
4363 | type->GetClangForwardType(), | |||
4364 | storage); | |||
4365 | assert(param_var_decl)((param_var_decl) ? static_cast<void> (0) : __assert_fail ("param_var_decl", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4365, __PRETTY_FUNCTION__)); | |||
4366 | function_param_decls.push_back(param_var_decl); | |||
4367 | ||||
4368 | GetClangASTContext().SetMetadataAsUserID (param_var_decl, MakeUserID(die->GetOffset())); | |||
4369 | } | |||
4370 | } | |||
4371 | } | |||
4372 | arg_idx++; | |||
4373 | } | |||
4374 | break; | |||
4375 | ||||
4376 | case DW_TAG_unspecified_parameters: | |||
4377 | is_variadic = true; | |||
4378 | break; | |||
4379 | ||||
4380 | case DW_TAG_template_type_parameter: | |||
4381 | case DW_TAG_template_value_parameter: | |||
4382 | // The one caller of this was never using the template_param_infos, | |||
4383 | // and the local variable was taking up a large amount of stack space | |||
4384 | // in SymbolFileDWARF::ParseType() so this was removed. If we ever need | |||
4385 | // the template params back, we can add them back. | |||
4386 | // ParseTemplateDIE (dwarf_cu, die, template_param_infos); | |||
4387 | break; | |||
4388 | ||||
4389 | default: | |||
4390 | break; | |||
4391 | } | |||
4392 | } | |||
4393 | return arg_idx; | |||
4394 | } | |||
4395 | ||||
4396 | size_t | |||
4397 | SymbolFileDWARF::ParseChildEnumerators | |||
4398 | ( | |||
4399 | const SymbolContext& sc, | |||
4400 | lldb_private::ClangASTType &clang_type, | |||
4401 | bool is_signed, | |||
4402 | uint32_t enumerator_byte_size, | |||
4403 | DWARFCompileUnit* dwarf_cu, | |||
4404 | const DWARFDebugInfoEntry *parent_die | |||
4405 | ) | |||
4406 | { | |||
4407 | if (parent_die == NULL__null) | |||
4408 | return 0; | |||
4409 | ||||
4410 | size_t enumerators_added = 0; | |||
4411 | const DWARFDebugInfoEntry *die; | |||
4412 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||
4413 | ||||
4414 | for (die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||
4415 | { | |||
4416 | const dw_tag_t tag = die->Tag(); | |||
4417 | if (tag == DW_TAG_enumerator) | |||
4418 | { | |||
4419 | DWARFDebugInfoEntry::Attributes attributes; | |||
4420 | const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes); | |||
4421 | if (num_child_attributes > 0) | |||
4422 | { | |||
4423 | const char *name = NULL__null; | |||
4424 | bool got_value = false; | |||
4425 | int64_t enum_value = 0; | |||
4426 | Declaration decl; | |||
4427 | ||||
4428 | uint32_t i; | |||
4429 | for (i=0; i<num_child_attributes; ++i) | |||
4430 | { | |||
4431 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
4432 | DWARFFormValue form_value; | |||
4433 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
4434 | { | |||
4435 | switch (attr) | |||
4436 | { | |||
4437 | case DW_AT_const_value: | |||
4438 | got_value = true; | |||
4439 | if (is_signed) | |||
4440 | enum_value = form_value.Signed(); | |||
4441 | else | |||
4442 | enum_value = form_value.Unsigned(); | |||
4443 | break; | |||
4444 | ||||
4445 | case DW_AT_name: | |||
4446 | name = form_value.AsCString(&get_debug_str_data()); | |||
4447 | break; | |||
4448 | ||||
4449 | case DW_AT_description: | |||
4450 | default: | |||
4451 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
4452 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
4453 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
4454 | case DW_AT_sibling: | |||
4455 | break; | |||
4456 | } | |||
4457 | } | |||
4458 | } | |||
4459 | ||||
4460 | if (name && name[0] && got_value) | |||
4461 | { | |||
4462 | clang_type.AddEnumerationValueToEnumerationType (clang_type.GetEnumerationIntegerType(), | |||
4463 | decl, | |||
4464 | name, | |||
4465 | enum_value, | |||
4466 | enumerator_byte_size * 8); | |||
4467 | ++enumerators_added; | |||
4468 | } | |||
4469 | } | |||
4470 | } | |||
4471 | } | |||
4472 | return enumerators_added; | |||
4473 | } | |||
4474 | ||||
4475 | void | |||
4476 | SymbolFileDWARF::ParseChildArrayInfo | |||
4477 | ( | |||
4478 | const SymbolContext& sc, | |||
4479 | DWARFCompileUnit* dwarf_cu, | |||
4480 | const DWARFDebugInfoEntry *parent_die, | |||
4481 | int64_t& first_index, | |||
4482 | std::vector<uint64_t>& element_orders, | |||
4483 | uint32_t& byte_stride, | |||
4484 | uint32_t& bit_stride | |||
4485 | ) | |||
4486 | { | |||
4487 | if (parent_die == NULL__null) | |||
4488 | return; | |||
4489 | ||||
4490 | const DWARFDebugInfoEntry *die; | |||
4491 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||
4492 | for (die = parent_die->GetFirstChild(); die != NULL__null; die = die->GetSibling()) | |||
4493 | { | |||
4494 | const dw_tag_t tag = die->Tag(); | |||
4495 | switch (tag) | |||
4496 | { | |||
4497 | case DW_TAG_subrange_type: | |||
4498 | { | |||
4499 | DWARFDebugInfoEntry::Attributes attributes; | |||
4500 | const size_t num_child_attributes = die->GetAttributes(this, dwarf_cu, fixed_form_sizes, attributes); | |||
4501 | if (num_child_attributes > 0) | |||
4502 | { | |||
4503 | uint64_t num_elements = 0; | |||
4504 | uint64_t lower_bound = 0; | |||
4505 | uint64_t upper_bound = 0; | |||
4506 | bool upper_bound_valid = false; | |||
4507 | uint32_t i; | |||
4508 | for (i=0; i<num_child_attributes; ++i) | |||
4509 | { | |||
4510 | const dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
4511 | DWARFFormValue form_value; | |||
4512 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
4513 | { | |||
4514 | switch (attr) | |||
4515 | { | |||
4516 | case DW_AT_name: | |||
4517 | break; | |||
4518 | ||||
4519 | case DW_AT_count: | |||
4520 | num_elements = form_value.Unsigned(); | |||
4521 | break; | |||
4522 | ||||
4523 | case DW_AT_bit_stride: | |||
4524 | bit_stride = form_value.Unsigned(); | |||
4525 | break; | |||
4526 | ||||
4527 | case DW_AT_byte_stride: | |||
4528 | byte_stride = form_value.Unsigned(); | |||
4529 | break; | |||
4530 | ||||
4531 | case DW_AT_lower_bound: | |||
4532 | lower_bound = form_value.Unsigned(); | |||
4533 | break; | |||
4534 | ||||
4535 | case DW_AT_upper_bound: | |||
4536 | upper_bound_valid = true; | |||
4537 | upper_bound = form_value.Unsigned(); | |||
4538 | break; | |||
4539 | ||||
4540 | default: | |||
4541 | case DW_AT_abstract_origin: | |||
4542 | case DW_AT_accessibility: | |||
4543 | case DW_AT_allocated: | |||
4544 | case DW_AT_associated: | |||
4545 | case DW_AT_data_location: | |||
4546 | case DW_AT_declaration: | |||
4547 | case DW_AT_description: | |||
4548 | case DW_AT_sibling: | |||
4549 | case DW_AT_threads_scaled: | |||
4550 | case DW_AT_type: | |||
4551 | case DW_AT_visibility: | |||
4552 | break; | |||
4553 | } | |||
4554 | } | |||
4555 | } | |||
4556 | ||||
4557 | if (num_elements == 0) | |||
4558 | { | |||
4559 | if (upper_bound_valid && upper_bound >= lower_bound) | |||
4560 | num_elements = upper_bound - lower_bound + 1; | |||
4561 | } | |||
4562 | ||||
4563 | element_orders.push_back (num_elements); | |||
4564 | } | |||
4565 | } | |||
4566 | break; | |||
4567 | } | |||
4568 | } | |||
4569 | } | |||
4570 | ||||
4571 | TypeSP | |||
4572 | SymbolFileDWARF::GetTypeForDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry* die) | |||
4573 | { | |||
4574 | TypeSP type_sp; | |||
4575 | if (die != NULL__null) | |||
4576 | { | |||
4577 | assert(dwarf_cu != NULL)((dwarf_cu != __null) ? static_cast<void> (0) : __assert_fail ("dwarf_cu != __null", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4577, __PRETTY_FUNCTION__)); | |||
4578 | Type *type_ptr = m_die_to_type.lookup (die); | |||
4579 | if (type_ptr == NULL__null) | |||
4580 | { | |||
4581 | CompileUnit* lldb_cu = GetCompUnitForDWARFCompUnit(dwarf_cu); | |||
4582 | assert (lldb_cu)((lldb_cu) ? static_cast<void> (0) : __assert_fail ("lldb_cu" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4582, __PRETTY_FUNCTION__)); | |||
4583 | SymbolContext sc(lldb_cu); | |||
4584 | type_sp = ParseType(sc, dwarf_cu, die, NULL__null); | |||
4585 | } | |||
4586 | else if (type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||
4587 | { | |||
4588 | // Grab the existing type from the master types lists | |||
4589 | type_sp = type_ptr->shared_from_this(); | |||
4590 | } | |||
4591 | ||||
4592 | } | |||
4593 | return type_sp; | |||
4594 | } | |||
4595 | ||||
4596 | clang::DeclContext * | |||
4597 | SymbolFileDWARF::GetClangDeclContextContainingDIEOffset (dw_offset_t die_offset) | |||
4598 | { | |||
4599 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
4600 | { | |||
4601 | DWARFCompileUnitSP cu_sp; | |||
4602 | const DWARFDebugInfoEntry* die = DebugInfo()->GetDIEPtr(die_offset, &cu_sp); | |||
4603 | return GetClangDeclContextContainingDIE (cu_sp.get(), die, NULL__null); | |||
4604 | } | |||
4605 | return NULL__null; | |||
4606 | } | |||
4607 | ||||
4608 | clang::DeclContext * | |||
4609 | SymbolFileDWARF::GetClangDeclContextForDIEOffset (const SymbolContext &sc, dw_offset_t die_offset) | |||
4610 | { | |||
4611 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
4612 | { | |||
4613 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
4614 | if (debug_info) | |||
4615 | { | |||
4616 | DWARFCompileUnitSP cu_sp; | |||
4617 | const DWARFDebugInfoEntry* die = debug_info->GetDIEPtr(die_offset, &cu_sp); | |||
4618 | if (die) | |||
4619 | return GetClangDeclContextForDIE (sc, cu_sp.get(), die); | |||
4620 | } | |||
4621 | } | |||
4622 | return NULL__null; | |||
4623 | } | |||
4624 | ||||
4625 | clang::NamespaceDecl * | |||
4626 | SymbolFileDWARF::ResolveNamespaceDIE (DWARFCompileUnit *dwarf_cu, const DWARFDebugInfoEntry *die) | |||
4627 | { | |||
4628 | if (die && die->Tag() == DW_TAG_namespace) | |||
4629 | { | |||
4630 | // See if we already parsed this namespace DIE and associated it with a | |||
4631 | // uniqued namespace declaration | |||
4632 | clang::NamespaceDecl *namespace_decl = static_cast<clang::NamespaceDecl *>(m_die_to_decl_ctx[die]); | |||
4633 | if (namespace_decl) | |||
4634 | return namespace_decl; | |||
4635 | else | |||
4636 | { | |||
4637 | const char *namespace_name = die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL__null); | |||
4638 | clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, NULL__null); | |||
4639 | namespace_decl = GetClangASTContext().GetUniqueNamespaceDeclaration (namespace_name, containing_decl_ctx); | |||
4640 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||
4641 | if (log) | |||
4642 | { | |||
4643 | if (namespace_name) | |||
4644 | { | |||
4645 | GetObjectFile()->GetModule()->LogMessage (log, | |||
4646 | "ASTContext => %p: 0x%8.8" PRIx64"l" "x" ": DW_TAG_namespace with DW_AT_name(\"%s\") => clang::NamespaceDecl *%p (original = %p)", | |||
4647 | static_cast<void*>(GetClangASTContext().getASTContext()), | |||
4648 | MakeUserID(die->GetOffset()), | |||
4649 | namespace_name, | |||
4650 | static_cast<void*>(namespace_decl), | |||
4651 | static_cast<void*>(namespace_decl->getOriginalNamespace())); | |||
4652 | } | |||
4653 | else | |||
4654 | { | |||
4655 | GetObjectFile()->GetModule()->LogMessage (log, | |||
4656 | "ASTContext => %p: 0x%8.8" PRIx64"l" "x" ": DW_TAG_namespace (anonymous) => clang::NamespaceDecl *%p (original = %p)", | |||
4657 | static_cast<void*>(GetClangASTContext().getASTContext()), | |||
4658 | MakeUserID(die->GetOffset()), | |||
4659 | static_cast<void*>(namespace_decl), | |||
4660 | static_cast<void*>(namespace_decl->getOriginalNamespace())); | |||
4661 | } | |||
4662 | } | |||
4663 | ||||
4664 | if (namespace_decl) | |||
4665 | LinkDeclContextToDIE((clang::DeclContext*)namespace_decl, die); | |||
4666 | return namespace_decl; | |||
4667 | } | |||
4668 | } | |||
4669 | return NULL__null; | |||
4670 | } | |||
4671 | ||||
4672 | clang::DeclContext * | |||
4673 | SymbolFileDWARF::GetClangDeclContextForDIE (const SymbolContext &sc, DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) | |||
4674 | { | |||
4675 | clang::DeclContext *clang_decl_ctx = GetCachedClangDeclContextForDIE (die); | |||
4676 | if (clang_decl_ctx) | |||
4677 | return clang_decl_ctx; | |||
4678 | // If this DIE has a specification, or an abstract origin, then trace to those. | |||
4679 | ||||
4680 | dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||
4681 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
4682 | return GetClangDeclContextForDIEOffset (sc, die_offset); | |||
4683 | ||||
4684 | die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||
4685 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
4686 | return GetClangDeclContextForDIEOffset (sc, die_offset); | |||
4687 | ||||
4688 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||
4689 | if (log) | |||
4690 | GetObjectFile()->GetModule()->LogMessage(log, "SymbolFileDWARF::GetClangDeclContextForDIE (die = 0x%8.8x) %s '%s'", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), die->GetName(this, cu)); | |||
4691 | // This is the DIE we want. Parse it, then query our map. | |||
4692 | bool assert_not_being_parsed = true; | |||
4693 | ResolveTypeUID (cu, die, assert_not_being_parsed); | |||
4694 | ||||
4695 | clang_decl_ctx = GetCachedClangDeclContextForDIE (die); | |||
4696 | ||||
4697 | return clang_decl_ctx; | |||
4698 | } | |||
4699 | ||||
4700 | clang::DeclContext * | |||
4701 | SymbolFileDWARF::GetClangDeclContextContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die, const DWARFDebugInfoEntry **decl_ctx_die_copy) | |||
4702 | { | |||
4703 | if (m_clang_tu_decl == NULL__null) | |||
4704 | m_clang_tu_decl = GetClangASTContext().getASTContext()->getTranslationUnitDecl(); | |||
4705 | ||||
4706 | const DWARFDebugInfoEntry *decl_ctx_die = GetDeclContextDIEContainingDIE (cu, die); | |||
4707 | ||||
4708 | if (decl_ctx_die_copy) | |||
4709 | *decl_ctx_die_copy = decl_ctx_die; | |||
4710 | ||||
4711 | if (decl_ctx_die) | |||
4712 | { | |||
4713 | ||||
4714 | DIEToDeclContextMap::iterator pos = m_die_to_decl_ctx.find (decl_ctx_die); | |||
4715 | if (pos != m_die_to_decl_ctx.end()) | |||
4716 | return pos->second; | |||
4717 | ||||
4718 | switch (decl_ctx_die->Tag()) | |||
4719 | { | |||
4720 | case DW_TAG_compile_unit: | |||
4721 | return m_clang_tu_decl; | |||
4722 | ||||
4723 | case DW_TAG_namespace: | |||
4724 | return ResolveNamespaceDIE (cu, decl_ctx_die); | |||
4725 | break; | |||
4726 | ||||
4727 | case DW_TAG_structure_type: | |||
4728 | case DW_TAG_union_type: | |||
4729 | case DW_TAG_class_type: | |||
4730 | { | |||
4731 | Type* type = ResolveType (cu, decl_ctx_die); | |||
4732 | if (type) | |||
4733 | { | |||
4734 | clang::DeclContext *decl_ctx = type->GetClangForwardType().GetDeclContextForType (); | |||
4735 | if (decl_ctx) | |||
4736 | { | |||
4737 | LinkDeclContextToDIE (decl_ctx, decl_ctx_die); | |||
4738 | if (decl_ctx) | |||
4739 | return decl_ctx; | |||
4740 | } | |||
4741 | } | |||
4742 | } | |||
4743 | break; | |||
4744 | ||||
4745 | default: | |||
4746 | break; | |||
4747 | } | |||
4748 | } | |||
4749 | return m_clang_tu_decl; | |||
4750 | } | |||
4751 | ||||
4752 | ||||
4753 | const DWARFDebugInfoEntry * | |||
4754 | SymbolFileDWARF::GetDeclContextDIEContainingDIE (DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die) | |||
4755 | { | |||
4756 | if (cu && die) | |||
4757 | { | |||
4758 | const DWARFDebugInfoEntry * const decl_die = die; | |||
4759 | ||||
4760 | while (die != NULL__null) | |||
4761 | { | |||
4762 | // If this is the original DIE that we are searching for a declaration | |||
4763 | // for, then don't look in the cache as we don't want our own decl | |||
4764 | // context to be our decl context... | |||
4765 | if (decl_die != die) | |||
4766 | { | |||
4767 | switch (die->Tag()) | |||
4768 | { | |||
4769 | case DW_TAG_compile_unit: | |||
4770 | case DW_TAG_namespace: | |||
4771 | case DW_TAG_structure_type: | |||
4772 | case DW_TAG_union_type: | |||
4773 | case DW_TAG_class_type: | |||
4774 | return die; | |||
4775 | ||||
4776 | default: | |||
4777 | break; | |||
4778 | } | |||
4779 | } | |||
4780 | ||||
4781 | dw_offset_t die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_specification, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||
4782 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
4783 | { | |||
4784 | DWARFCompileUnit *spec_cu = cu; | |||
4785 | const DWARFDebugInfoEntry *spec_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &spec_cu); | |||
4786 | const DWARFDebugInfoEntry *spec_die_decl_ctx_die = GetDeclContextDIEContainingDIE (spec_cu, spec_die); | |||
4787 | if (spec_die_decl_ctx_die) | |||
4788 | return spec_die_decl_ctx_die; | |||
4789 | } | |||
4790 | ||||
4791 | die_offset = die->GetAttributeValueAsReference(this, cu, DW_AT_abstract_origin, DW_INVALID_OFFSET(~(dw_offset_t)0)); | |||
4792 | if (die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
4793 | { | |||
4794 | DWARFCompileUnit *abs_cu = cu; | |||
4795 | const DWARFDebugInfoEntry *abs_die = DebugInfo()->GetDIEPtrWithCompileUnitHint (die_offset, &abs_cu); | |||
4796 | const DWARFDebugInfoEntry *abs_die_decl_ctx_die = GetDeclContextDIEContainingDIE (abs_cu, abs_die); | |||
4797 | if (abs_die_decl_ctx_die) | |||
4798 | return abs_die_decl_ctx_die; | |||
4799 | } | |||
4800 | ||||
4801 | die = die->GetParent(); | |||
4802 | } | |||
4803 | } | |||
4804 | return NULL__null; | |||
4805 | } | |||
4806 | ||||
4807 | ||||
4808 | Symbol * | |||
4809 | SymbolFileDWARF::GetObjCClassSymbol (const ConstString &objc_class_name) | |||
4810 | { | |||
4811 | Symbol *objc_class_symbol = NULL__null; | |||
4812 | if (m_obj_file) | |||
4813 | { | |||
4814 | Symtab *symtab = m_obj_file->GetSymtab (); | |||
4815 | if (symtab) | |||
4816 | { | |||
4817 | objc_class_symbol = symtab->FindFirstSymbolWithNameAndType (objc_class_name, | |||
4818 | eSymbolTypeObjCClass, | |||
4819 | Symtab::eDebugNo, | |||
4820 | Symtab::eVisibilityAny); | |||
4821 | } | |||
4822 | } | |||
4823 | return objc_class_symbol; | |||
4824 | } | |||
4825 | ||||
4826 | // Some compilers don't emit the DW_AT_APPLE_objc_complete_type attribute. If they don't | |||
4827 | // then we can end up looking through all class types for a complete type and never find | |||
4828 | // the full definition. We need to know if this attribute is supported, so we determine | |||
4829 | // this here and cache th result. We also need to worry about the debug map DWARF file | |||
4830 | // if we are doing darwin DWARF in .o file debugging. | |||
4831 | bool | |||
4832 | SymbolFileDWARF::Supports_DW_AT_APPLE_objc_complete_type (DWARFCompileUnit *cu) | |||
4833 | { | |||
4834 | if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) | |||
4835 | { | |||
4836 | m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo; | |||
4837 | if (cu && cu->Supports_DW_AT_APPLE_objc_complete_type()) | |||
4838 | m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; | |||
4839 | else | |||
4840 | { | |||
4841 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
4842 | const uint32_t num_compile_units = GetNumCompileUnits(); | |||
4843 | for (uint32_t cu_idx = 0; cu_idx < num_compile_units; ++cu_idx) | |||
4844 | { | |||
4845 | DWARFCompileUnit* dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx); | |||
4846 | if (dwarf_cu != cu && dwarf_cu->Supports_DW_AT_APPLE_objc_complete_type()) | |||
4847 | { | |||
4848 | m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes; | |||
4849 | break; | |||
4850 | } | |||
4851 | } | |||
4852 | } | |||
4853 | if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolNo && GetDebugMapSymfile ()) | |||
4854 | return m_debug_map_symfile->Supports_DW_AT_APPLE_objc_complete_type (this); | |||
4855 | } | |||
4856 | return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes; | |||
4857 | } | |||
4858 | ||||
4859 | // This function can be used when a DIE is found that is a forward declaration | |||
4860 | // DIE and we want to try and find a type that has the complete definition. | |||
4861 | TypeSP | |||
4862 | SymbolFileDWARF::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die, | |||
4863 | const ConstString &type_name, | |||
4864 | bool must_be_implementation) | |||
4865 | { | |||
4866 | ||||
4867 | TypeSP type_sp; | |||
4868 | ||||
4869 | if (!type_name || (must_be_implementation && !GetObjCClassSymbol (type_name))) | |||
4870 | return type_sp; | |||
4871 | ||||
4872 | DIEArray die_offsets; | |||
4873 | ||||
4874 | if (m_using_apple_tables) | |||
4875 | { | |||
4876 | if (m_apple_types_ap.get()) | |||
4877 | { | |||
4878 | const char *name_cstr = type_name.GetCString(); | |||
4879 | m_apple_types_ap->FindCompleteObjCClassByName (name_cstr, die_offsets, must_be_implementation); | |||
4880 | } | |||
4881 | } | |||
4882 | else | |||
4883 | { | |||
4884 | if (!m_indexed) | |||
4885 | Index (); | |||
4886 | ||||
4887 | m_type_index.Find (type_name, die_offsets); | |||
4888 | } | |||
4889 | ||||
4890 | const size_t num_matches = die_offsets.size(); | |||
4891 | ||||
4892 | DWARFCompileUnit* type_cu = NULL__null; | |||
4893 | const DWARFDebugInfoEntry* type_die = NULL__null; | |||
4894 | if (num_matches) | |||
4895 | { | |||
4896 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
4897 | for (size_t i=0; i<num_matches; ++i) | |||
4898 | { | |||
4899 | const dw_offset_t die_offset = die_offsets[i]; | |||
4900 | type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu); | |||
4901 | ||||
4902 | if (type_die) | |||
4903 | { | |||
4904 | bool try_resolving_type = false; | |||
4905 | ||||
4906 | // Don't try and resolve the DIE we are looking for with the DIE itself! | |||
4907 | if (type_die != die) | |||
4908 | { | |||
4909 | switch (type_die->Tag()) | |||
4910 | { | |||
4911 | case DW_TAG_class_type: | |||
4912 | case DW_TAG_structure_type: | |||
4913 | try_resolving_type = true; | |||
4914 | break; | |||
4915 | default: | |||
4916 | break; | |||
4917 | } | |||
4918 | } | |||
4919 | ||||
4920 | if (try_resolving_type) | |||
4921 | { | |||
4922 | if (must_be_implementation && type_cu->Supports_DW_AT_APPLE_objc_complete_type()) | |||
4923 | try_resolving_type = type_die->GetAttributeValueAsUnsigned (this, type_cu, DW_AT_APPLE_objc_complete_type, 0); | |||
4924 | ||||
4925 | if (try_resolving_type) | |||
4926 | { | |||
4927 | Type *resolved_type = ResolveType (type_cu, type_die, false); | |||
4928 | if (resolved_type && resolved_type != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||
4929 | { | |||
4930 | DEBUG_PRINTF ("resolved 0x%8.8" PRIx64 " from %s to 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ")\n", | |||
4931 | MakeUserID(die->GetOffset()), | |||
4932 | m_obj_file->GetFileSpec().GetFilename().AsCString(), | |||
4933 | MakeUserID(type_die->GetOffset()), | |||
4934 | MakeUserID(type_cu->GetOffset())); | |||
4935 | ||||
4936 | if (die) | |||
4937 | m_die_to_type[die] = resolved_type; | |||
4938 | type_sp = resolved_type->shared_from_this(); | |||
4939 | break; | |||
4940 | } | |||
4941 | } | |||
4942 | } | |||
4943 | } | |||
4944 | else | |||
4945 | { | |||
4946 | if (m_using_apple_tables) | |||
4947 | { | |||
4948 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n", | |||
4949 | die_offset, type_name.GetCString()); | |||
4950 | } | |||
4951 | } | |||
4952 | ||||
4953 | } | |||
4954 | } | |||
4955 | return type_sp; | |||
4956 | } | |||
4957 | ||||
4958 | ||||
4959 | //---------------------------------------------------------------------- | |||
4960 | // This function helps to ensure that the declaration contexts match for | |||
4961 | // two different DIEs. Often times debug information will refer to a | |||
4962 | // forward declaration of a type (the equivalent of "struct my_struct;". | |||
4963 | // There will often be a declaration of that type elsewhere that has the | |||
4964 | // full definition. When we go looking for the full type "my_struct", we | |||
4965 | // will find one or more matches in the accelerator tables and we will | |||
4966 | // then need to make sure the type was in the same declaration context | |||
4967 | // as the original DIE. This function can efficiently compare two DIEs | |||
4968 | // and will return true when the declaration context matches, and false | |||
4969 | // when they don't. | |||
4970 | //---------------------------------------------------------------------- | |||
4971 | bool | |||
4972 | SymbolFileDWARF::DIEDeclContextsMatch (DWARFCompileUnit* cu1, const DWARFDebugInfoEntry *die1, | |||
4973 | DWARFCompileUnit* cu2, const DWARFDebugInfoEntry *die2) | |||
4974 | { | |||
4975 | if (die1 == die2) | |||
4976 | return true; | |||
4977 | ||||
4978 | #if defined (LLDB_CONFIGURATION_DEBUG) | |||
4979 | // You can't and shouldn't call this function with a compile unit from | |||
4980 | // two different SymbolFileDWARF instances. | |||
4981 | assert (DebugInfo()->ContainsCompileUnit (cu1))((DebugInfo()->ContainsCompileUnit (cu1)) ? static_cast< void> (0) : __assert_fail ("DebugInfo()->ContainsCompileUnit (cu1)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4981, __PRETTY_FUNCTION__)); | |||
4982 | assert (DebugInfo()->ContainsCompileUnit (cu2))((DebugInfo()->ContainsCompileUnit (cu2)) ? static_cast< void> (0) : __assert_fail ("DebugInfo()->ContainsCompileUnit (cu2)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 4982, __PRETTY_FUNCTION__)); | |||
4983 | #endif | |||
4984 | ||||
4985 | DWARFDIECollection decl_ctx_1; | |||
4986 | DWARFDIECollection decl_ctx_2; | |||
4987 | //The declaration DIE stack is a stack of the declaration context | |||
4988 | // DIEs all the way back to the compile unit. If a type "T" is | |||
4989 | // declared inside a class "B", and class "B" is declared inside | |||
4990 | // a class "A" and class "A" is in a namespace "lldb", and the | |||
4991 | // namespace is in a compile unit, there will be a stack of DIEs: | |||
4992 | // | |||
4993 | // [0] DW_TAG_class_type for "B" | |||
4994 | // [1] DW_TAG_class_type for "A" | |||
4995 | // [2] DW_TAG_namespace for "lldb" | |||
4996 | // [3] DW_TAG_compile_unit for the source file. | |||
4997 | // | |||
4998 | // We grab both contexts and make sure that everything matches | |||
4999 | // all the way back to the compiler unit. | |||
5000 | ||||
5001 | // First lets grab the decl contexts for both DIEs | |||
5002 | die1->GetDeclContextDIEs (this, cu1, decl_ctx_1); | |||
5003 | die2->GetDeclContextDIEs (this, cu2, decl_ctx_2); | |||
5004 | // Make sure the context arrays have the same size, otherwise | |||
5005 | // we are done | |||
5006 | const size_t count1 = decl_ctx_1.Size(); | |||
5007 | const size_t count2 = decl_ctx_2.Size(); | |||
5008 | if (count1 != count2) | |||
5009 | return false; | |||
5010 | ||||
5011 | // Make sure the DW_TAG values match all the way back up the | |||
5012 | // compile unit. If they don't, then we are done. | |||
5013 | const DWARFDebugInfoEntry *decl_ctx_die1; | |||
5014 | const DWARFDebugInfoEntry *decl_ctx_die2; | |||
5015 | size_t i; | |||
5016 | for (i=0; i<count1; i++) | |||
5017 | { | |||
5018 | decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i); | |||
5019 | decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i); | |||
5020 | if (decl_ctx_die1->Tag() != decl_ctx_die2->Tag()) | |||
5021 | return false; | |||
5022 | } | |||
5023 | #if defined LLDB_CONFIGURATION_DEBUG | |||
5024 | ||||
5025 | // Make sure the top item in the decl context die array is always | |||
5026 | // DW_TAG_compile_unit. If it isn't then something went wrong in | |||
5027 | // the DWARFDebugInfoEntry::GetDeclContextDIEs() function... | |||
5028 | assert (decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit)((decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit ) ? static_cast<void> (0) : __assert_fail ("decl_ctx_1.GetDIEPtrAtIndex (count1 - 1)->Tag() == DW_TAG_compile_unit" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 5028, __PRETTY_FUNCTION__)); | |||
5029 | ||||
5030 | #endif | |||
5031 | // Always skip the compile unit when comparing by only iterating up to | |||
5032 | // "count - 1". Here we compare the names as we go. | |||
5033 | for (i=0; i<count1 - 1; i++) | |||
5034 | { | |||
5035 | decl_ctx_die1 = decl_ctx_1.GetDIEPtrAtIndex (i); | |||
5036 | decl_ctx_die2 = decl_ctx_2.GetDIEPtrAtIndex (i); | |||
5037 | const char *name1 = decl_ctx_die1->GetName(this, cu1); | |||
5038 | const char *name2 = decl_ctx_die2->GetName(this, cu2); | |||
5039 | // If the string was from a DW_FORM_strp, then the pointer will often | |||
5040 | // be the same! | |||
5041 | if (name1 == name2) | |||
5042 | continue; | |||
5043 | ||||
5044 | // Name pointers are not equal, so only compare the strings | |||
5045 | // if both are not NULL. | |||
5046 | if (name1 && name2) | |||
5047 | { | |||
5048 | // If the strings don't compare, we are done... | |||
5049 | if (strcmp(name1, name2) != 0) | |||
5050 | return false; | |||
5051 | } | |||
5052 | else | |||
5053 | { | |||
5054 | // One name was NULL while the other wasn't | |||
5055 | return false; | |||
5056 | } | |||
5057 | } | |||
5058 | // We made it through all of the checks and the declaration contexts | |||
5059 | // are equal. | |||
5060 | return true; | |||
5061 | } | |||
5062 | ||||
5063 | // This function can be used when a DIE is found that is a forward declaration | |||
5064 | // DIE and we want to try and find a type that has the complete definition. | |||
5065 | // "cu" and "die" must be from this SymbolFileDWARF | |||
5066 | TypeSP | |||
5067 | SymbolFileDWARF::FindDefinitionTypeForDIE (DWARFCompileUnit* cu, | |||
5068 | const DWARFDebugInfoEntry *die, | |||
5069 | const ConstString &type_name) | |||
5070 | { | |||
5071 | TypeSP type_sp; | |||
5072 | ||||
5073 | #if defined (LLDB_CONFIGURATION_DEBUG) | |||
5074 | // You can't and shouldn't call this function with a compile unit from | |||
5075 | // another SymbolFileDWARF instance. | |||
5076 | assert (DebugInfo()->ContainsCompileUnit (cu))((DebugInfo()->ContainsCompileUnit (cu)) ? static_cast< void> (0) : __assert_fail ("DebugInfo()->ContainsCompileUnit (cu)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 5076, __PRETTY_FUNCTION__)); | |||
5077 | #endif | |||
5078 | ||||
5079 | if (cu == NULL__null || die == NULL__null || !type_name) | |||
5080 | return type_sp; | |||
5081 | ||||
5082 | std::string qualified_name; | |||
5083 | ||||
5084 | Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION(1u << 7)|DWARF_LOG_LOOKUPS(1u << 6))); | |||
5085 | if (log) | |||
5086 | { | |||
5087 | die->GetQualifiedName(this, cu, qualified_name); | |||
5088 | GetObjectFile()->GetModule()->LogMessage (log, | |||
5089 | "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x (%s), name='%s')", | |||
5090 | die->GetOffset(), | |||
5091 | qualified_name.c_str(), | |||
5092 | type_name.GetCString()); | |||
5093 | } | |||
5094 | ||||
5095 | DIEArray die_offsets; | |||
5096 | ||||
5097 | if (m_using_apple_tables) | |||
5098 | { | |||
5099 | if (m_apple_types_ap.get()) | |||
5100 | { | |||
5101 | const bool has_tag = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeTag); | |||
5102 | const bool has_qualified_name_hash = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeQualNameHash); | |||
5103 | if (has_tag && has_qualified_name_hash) | |||
5104 | { | |||
5105 | if (qualified_name.empty()) | |||
5106 | die->GetQualifiedName(this, cu, qualified_name); | |||
5107 | ||||
5108 | const uint32_t qualified_name_hash = MappedHash::HashStringUsingDJB (qualified_name.c_str()); | |||
5109 | if (log) | |||
5110 | GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()"); | |||
5111 | m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), die->Tag(), qualified_name_hash, die_offsets); | |||
5112 | } | |||
5113 | else if (has_tag) | |||
5114 | { | |||
5115 | if (log) | |||
5116 | GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()"); | |||
5117 | m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), die->Tag(), die_offsets); | |||
5118 | } | |||
5119 | else | |||
5120 | { | |||
5121 | m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets); | |||
5122 | } | |||
5123 | } | |||
5124 | } | |||
5125 | else | |||
5126 | { | |||
5127 | if (!m_indexed) | |||
5128 | Index (); | |||
5129 | ||||
5130 | m_type_index.Find (type_name, die_offsets); | |||
5131 | } | |||
5132 | ||||
5133 | const size_t num_matches = die_offsets.size(); | |||
5134 | ||||
5135 | const dw_tag_t die_tag = die->Tag(); | |||
5136 | ||||
5137 | DWARFCompileUnit* type_cu = NULL__null; | |||
5138 | const DWARFDebugInfoEntry* type_die = NULL__null; | |||
5139 | if (num_matches) | |||
5140 | { | |||
5141 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
5142 | for (size_t i=0; i<num_matches; ++i) | |||
5143 | { | |||
5144 | const dw_offset_t die_offset = die_offsets[i]; | |||
5145 | type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu); | |||
5146 | ||||
5147 | if (type_die) | |||
5148 | { | |||
5149 | bool try_resolving_type = false; | |||
5150 | ||||
5151 | // Don't try and resolve the DIE we are looking for with the DIE itself! | |||
5152 | if (type_die != die) | |||
5153 | { | |||
5154 | const dw_tag_t type_die_tag = type_die->Tag(); | |||
5155 | // Make sure the tags match | |||
5156 | if (type_die_tag == die_tag) | |||
5157 | { | |||
5158 | // The tags match, lets try resolving this type | |||
5159 | try_resolving_type = true; | |||
5160 | } | |||
5161 | else | |||
5162 | { | |||
5163 | // The tags don't match, but we need to watch our for a | |||
5164 | // forward declaration for a struct and ("struct foo") | |||
5165 | // ends up being a class ("class foo { ... };") or | |||
5166 | // vice versa. | |||
5167 | switch (type_die_tag) | |||
5168 | { | |||
5169 | case DW_TAG_class_type: | |||
5170 | // We had a "class foo", see if we ended up with a "struct foo { ... };" | |||
5171 | try_resolving_type = (die_tag == DW_TAG_structure_type); | |||
5172 | break; | |||
5173 | case DW_TAG_structure_type: | |||
5174 | // We had a "struct foo", see if we ended up with a "class foo { ... };" | |||
5175 | try_resolving_type = (die_tag == DW_TAG_class_type); | |||
5176 | break; | |||
5177 | default: | |||
5178 | // Tags don't match, don't event try to resolve | |||
5179 | // using this type whose name matches.... | |||
5180 | break; | |||
5181 | } | |||
5182 | } | |||
5183 | } | |||
5184 | ||||
5185 | if (try_resolving_type) | |||
5186 | { | |||
5187 | if (log) | |||
5188 | { | |||
5189 | std::string qualified_name; | |||
5190 | type_die->GetQualifiedName(this, cu, qualified_name); | |||
5191 | GetObjectFile()->GetModule()->LogMessage (log, | |||
5192 | "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x, name='%s') trying die=0x%8.8x (%s)", | |||
5193 | die->GetOffset(), | |||
5194 | type_name.GetCString(), | |||
5195 | type_die->GetOffset(), | |||
5196 | qualified_name.c_str()); | |||
5197 | } | |||
5198 | ||||
5199 | // Make sure the decl contexts match all the way up | |||
5200 | if (DIEDeclContextsMatch(cu, die, type_cu, type_die)) | |||
5201 | { | |||
5202 | Type *resolved_type = ResolveType (type_cu, type_die, false); | |||
5203 | if (resolved_type && resolved_type != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||
5204 | { | |||
5205 | DEBUG_PRINTF ("resolved 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ") from %s to 0x%8.8" PRIx64 " (cu 0x%8.8" PRIx64 ")\n", | |||
5206 | MakeUserID(die->GetOffset()), | |||
5207 | MakeUserID(cu->GetOffset()), | |||
5208 | m_obj_file->GetFileSpec().GetFilename().AsCString(), | |||
5209 | MakeUserID(type_die->GetOffset()), | |||
5210 | MakeUserID(type_cu->GetOffset())); | |||
5211 | ||||
5212 | m_die_to_type[die] = resolved_type; | |||
5213 | type_sp = resolved_type->shared_from_this(); | |||
5214 | break; | |||
5215 | } | |||
5216 | } | |||
5217 | } | |||
5218 | else | |||
5219 | { | |||
5220 | if (log) | |||
5221 | { | |||
5222 | std::string qualified_name; | |||
5223 | type_die->GetQualifiedName(this, cu, qualified_name); | |||
5224 | GetObjectFile()->GetModule()->LogMessage (log, | |||
5225 | "SymbolFileDWARF::FindDefinitionTypeForDIE(die=0x%8.8x, name='%s') ignoring die=0x%8.8x (%s)", | |||
5226 | die->GetOffset(), | |||
5227 | type_name.GetCString(), | |||
5228 | type_die->GetOffset(), | |||
5229 | qualified_name.c_str()); | |||
5230 | } | |||
5231 | } | |||
5232 | } | |||
5233 | else | |||
5234 | { | |||
5235 | if (m_using_apple_tables) | |||
5236 | { | |||
5237 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n", | |||
5238 | die_offset, type_name.GetCString()); | |||
5239 | } | |||
5240 | } | |||
5241 | ||||
5242 | } | |||
5243 | } | |||
5244 | return type_sp; | |||
5245 | } | |||
5246 | ||||
5247 | TypeSP | |||
5248 | SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &dwarf_decl_ctx) | |||
5249 | { | |||
5250 | TypeSP type_sp; | |||
5251 | ||||
5252 | const uint32_t dwarf_decl_ctx_count = dwarf_decl_ctx.GetSize(); | |||
5253 | if (dwarf_decl_ctx_count > 0) | |||
5254 | { | |||
5255 | const ConstString type_name(dwarf_decl_ctx[0].name); | |||
5256 | const dw_tag_t tag = dwarf_decl_ctx[0].tag; | |||
5257 | ||||
5258 | if (type_name) | |||
5259 | { | |||
5260 | Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_TYPE_COMPLETION(1u << 7)|DWARF_LOG_LOOKUPS(1u << 6))); | |||
5261 | if (log) | |||
5262 | { | |||
5263 | GetObjectFile()->GetModule()->LogMessage (log, | |||
5264 | "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s')", | |||
5265 | DW_TAG_value_to_name(dwarf_decl_ctx[0].tag), | |||
5266 | dwarf_decl_ctx.GetQualifiedName()); | |||
5267 | } | |||
5268 | ||||
5269 | DIEArray die_offsets; | |||
5270 | ||||
5271 | if (m_using_apple_tables) | |||
5272 | { | |||
5273 | if (m_apple_types_ap.get()) | |||
5274 | { | |||
5275 | const bool has_tag = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeTag); | |||
5276 | const bool has_qualified_name_hash = m_apple_types_ap->GetHeader().header_data.ContainsAtom (DWARFMappedHash::eAtomTypeQualNameHash); | |||
5277 | if (has_tag && has_qualified_name_hash) | |||
5278 | { | |||
5279 | const char *qualified_name = dwarf_decl_ctx.GetQualifiedName(); | |||
5280 | const uint32_t qualified_name_hash = MappedHash::HashStringUsingDJB (qualified_name); | |||
5281 | if (log) | |||
5282 | GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTagAndQualifiedNameHash()"); | |||
5283 | m_apple_types_ap->FindByNameAndTagAndQualifiedNameHash (type_name.GetCString(), tag, qualified_name_hash, die_offsets); | |||
5284 | } | |||
5285 | else if (has_tag) | |||
5286 | { | |||
5287 | if (log) | |||
5288 | GetObjectFile()->GetModule()->LogMessage (log,"FindByNameAndTag()"); | |||
5289 | m_apple_types_ap->FindByNameAndTag (type_name.GetCString(), tag, die_offsets); | |||
5290 | } | |||
5291 | else | |||
5292 | { | |||
5293 | m_apple_types_ap->FindByName (type_name.GetCString(), die_offsets); | |||
5294 | } | |||
5295 | } | |||
5296 | } | |||
5297 | else | |||
5298 | { | |||
5299 | if (!m_indexed) | |||
5300 | Index (); | |||
5301 | ||||
5302 | m_type_index.Find (type_name, die_offsets); | |||
5303 | } | |||
5304 | ||||
5305 | const size_t num_matches = die_offsets.size(); | |||
5306 | ||||
5307 | ||||
5308 | DWARFCompileUnit* type_cu = NULL__null; | |||
5309 | const DWARFDebugInfoEntry* type_die = NULL__null; | |||
5310 | if (num_matches) | |||
5311 | { | |||
5312 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
5313 | for (size_t i=0; i<num_matches; ++i) | |||
5314 | { | |||
5315 | const dw_offset_t die_offset = die_offsets[i]; | |||
5316 | type_die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &type_cu); | |||
5317 | ||||
5318 | if (type_die) | |||
5319 | { | |||
5320 | bool try_resolving_type = false; | |||
5321 | ||||
5322 | // Don't try and resolve the DIE we are looking for with the DIE itself! | |||
5323 | const dw_tag_t type_tag = type_die->Tag(); | |||
5324 | // Make sure the tags match | |||
5325 | if (type_tag == tag) | |||
5326 | { | |||
5327 | // The tags match, lets try resolving this type | |||
5328 | try_resolving_type = true; | |||
5329 | } | |||
5330 | else | |||
5331 | { | |||
5332 | // The tags don't match, but we need to watch our for a | |||
5333 | // forward declaration for a struct and ("struct foo") | |||
5334 | // ends up being a class ("class foo { ... };") or | |||
5335 | // vice versa. | |||
5336 | switch (type_tag) | |||
5337 | { | |||
5338 | case DW_TAG_class_type: | |||
5339 | // We had a "class foo", see if we ended up with a "struct foo { ... };" | |||
5340 | try_resolving_type = (tag == DW_TAG_structure_type); | |||
5341 | break; | |||
5342 | case DW_TAG_structure_type: | |||
5343 | // We had a "struct foo", see if we ended up with a "class foo { ... };" | |||
5344 | try_resolving_type = (tag == DW_TAG_class_type); | |||
5345 | break; | |||
5346 | default: | |||
5347 | // Tags don't match, don't event try to resolve | |||
5348 | // using this type whose name matches.... | |||
5349 | break; | |||
5350 | } | |||
5351 | } | |||
5352 | ||||
5353 | if (try_resolving_type) | |||
5354 | { | |||
5355 | DWARFDeclContext type_dwarf_decl_ctx; | |||
5356 | type_die->GetDWARFDeclContext (this, type_cu, type_dwarf_decl_ctx); | |||
5357 | ||||
5358 | if (log) | |||
5359 | { | |||
5360 | GetObjectFile()->GetModule()->LogMessage (log, | |||
5361 | "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') trying die=0x%8.8x (%s)", | |||
5362 | DW_TAG_value_to_name(dwarf_decl_ctx[0].tag), | |||
5363 | dwarf_decl_ctx.GetQualifiedName(), | |||
5364 | type_die->GetOffset(), | |||
5365 | type_dwarf_decl_ctx.GetQualifiedName()); | |||
5366 | } | |||
5367 | ||||
5368 | // Make sure the decl contexts match all the way up | |||
5369 | if (dwarf_decl_ctx == type_dwarf_decl_ctx) | |||
5370 | { | |||
5371 | Type *resolved_type = ResolveType (type_cu, type_die, false); | |||
5372 | if (resolved_type && resolved_type != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||
5373 | { | |||
5374 | type_sp = resolved_type->shared_from_this(); | |||
5375 | break; | |||
5376 | } | |||
5377 | } | |||
5378 | } | |||
5379 | else | |||
5380 | { | |||
5381 | if (log) | |||
5382 | { | |||
5383 | std::string qualified_name; | |||
5384 | type_die->GetQualifiedName(this, type_cu, qualified_name); | |||
5385 | GetObjectFile()->GetModule()->LogMessage (log, | |||
5386 | "SymbolFileDWARF::FindDefinitionTypeForDWARFDeclContext(tag=%s, qualified-name='%s') ignoring die=0x%8.8x (%s)", | |||
5387 | DW_TAG_value_to_name(dwarf_decl_ctx[0].tag), | |||
5388 | dwarf_decl_ctx.GetQualifiedName(), | |||
5389 | type_die->GetOffset(), | |||
5390 | qualified_name.c_str()); | |||
5391 | } | |||
5392 | } | |||
5393 | } | |||
5394 | else | |||
5395 | { | |||
5396 | if (m_using_apple_tables) | |||
5397 | { | |||
5398 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_types accelerator table had bad die 0x%8.8x for '%s')\n", | |||
5399 | die_offset, type_name.GetCString()); | |||
5400 | } | |||
5401 | } | |||
5402 | ||||
5403 | } | |||
5404 | } | |||
5405 | } | |||
5406 | } | |||
5407 | return type_sp; | |||
5408 | } | |||
5409 | ||||
5410 | bool | |||
5411 | SymbolFileDWARF::CopyUniqueClassMethodTypes (SymbolFileDWARF *src_symfile, | |||
5412 | Type *class_type, | |||
5413 | DWARFCompileUnit* src_cu, | |||
5414 | const DWARFDebugInfoEntry *src_class_die, | |||
5415 | DWARFCompileUnit* dst_cu, | |||
5416 | const DWARFDebugInfoEntry *dst_class_die, | |||
5417 | DWARFDIECollection &failures) | |||
5418 | { | |||
5419 | if (!class_type || !src_cu || !src_class_die || !dst_cu || !dst_class_die) | |||
5420 | return false; | |||
5421 | if (src_class_die->Tag() != dst_class_die->Tag()) | |||
5422 | return false; | |||
5423 | ||||
5424 | // We need to complete the class type so we can get all of the method types | |||
5425 | // parsed so we can then unique those types to their equivalent counterparts | |||
5426 | // in "dst_cu" and "dst_class_die" | |||
5427 | class_type->GetClangFullType(); | |||
5428 | ||||
5429 | const DWARFDebugInfoEntry *src_die; | |||
5430 | const DWARFDebugInfoEntry *dst_die; | |||
5431 | UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die; | |||
5432 | UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die; | |||
5433 | UniqueCStringMap<const DWARFDebugInfoEntry *> src_name_to_die_artificial; | |||
5434 | UniqueCStringMap<const DWARFDebugInfoEntry *> dst_name_to_die_artificial; | |||
5435 | for (src_die = src_class_die->GetFirstChild(); src_die != NULL__null; src_die = src_die->GetSibling()) | |||
5436 | { | |||
5437 | if (src_die->Tag() == DW_TAG_subprogram) | |||
5438 | { | |||
5439 | // Make sure this is a declaration and not a concrete instance by looking | |||
5440 | // for DW_AT_declaration set to 1. Sometimes concrete function instances | |||
5441 | // are placed inside the class definitions and shouldn't be included in | |||
5442 | // the list of things are are tracking here. | |||
5443 | if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_declaration, 0) == 1) | |||
5444 | { | |||
5445 | const char *src_name = src_die->GetMangledName (src_symfile, src_cu); | |||
5446 | if (src_name) | |||
5447 | { | |||
5448 | ConstString src_const_name(src_name); | |||
5449 | if (src_die->GetAttributeValueAsUnsigned(src_symfile, src_cu, DW_AT_artificial, 0)) | |||
5450 | src_name_to_die_artificial.Append(src_const_name.GetCString(), src_die); | |||
5451 | else | |||
5452 | src_name_to_die.Append(src_const_name.GetCString(), src_die); | |||
5453 | } | |||
5454 | } | |||
5455 | } | |||
5456 | } | |||
5457 | for (dst_die = dst_class_die->GetFirstChild(); dst_die != NULL__null; dst_die = dst_die->GetSibling()) | |||
5458 | { | |||
5459 | if (dst_die->Tag() == DW_TAG_subprogram) | |||
5460 | { | |||
5461 | // Make sure this is a declaration and not a concrete instance by looking | |||
5462 | // for DW_AT_declaration set to 1. Sometimes concrete function instances | |||
5463 | // are placed inside the class definitions and shouldn't be included in | |||
5464 | // the list of things are are tracking here. | |||
5465 | if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_declaration, 0) == 1) | |||
5466 | { | |||
5467 | const char *dst_name = dst_die->GetMangledName (this, dst_cu); | |||
5468 | if (dst_name) | |||
5469 | { | |||
5470 | ConstString dst_const_name(dst_name); | |||
5471 | if (dst_die->GetAttributeValueAsUnsigned(this, dst_cu, DW_AT_artificial, 0)) | |||
5472 | dst_name_to_die_artificial.Append(dst_const_name.GetCString(), dst_die); | |||
5473 | else | |||
5474 | dst_name_to_die.Append(dst_const_name.GetCString(), dst_die); | |||
5475 | } | |||
5476 | } | |||
5477 | } | |||
5478 | } | |||
5479 | const uint32_t src_size = src_name_to_die.GetSize (); | |||
5480 | const uint32_t dst_size = dst_name_to_die.GetSize (); | |||
5481 | Log *log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO(1u << 1) | DWARF_LOG_TYPE_COMPLETION(1u << 7))); | |||
5482 | ||||
5483 | // Is everything kosher so we can go through the members at top speed? | |||
5484 | bool fast_path = true; | |||
5485 | ||||
5486 | if (src_size != dst_size) | |||
5487 | { | |||
5488 | if (src_size != 0 && dst_size != 0) | |||
5489 | { | |||
5490 | if (log) | |||
5491 | log->Printf("warning: trying to unique class DIE 0x%8.8x to 0x%8.8x, but they didn't have the same size (src=%d, dst=%d)", | |||
5492 | src_class_die->GetOffset(), | |||
5493 | dst_class_die->GetOffset(), | |||
5494 | src_size, | |||
5495 | dst_size); | |||
5496 | } | |||
5497 | ||||
5498 | fast_path = false; | |||
5499 | } | |||
5500 | ||||
5501 | uint32_t idx; | |||
5502 | ||||
5503 | if (fast_path) | |||
5504 | { | |||
5505 | for (idx = 0; idx < src_size; ++idx) | |||
5506 | { | |||
5507 | src_die = src_name_to_die.GetValueAtIndexUnchecked (idx); | |||
5508 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx); | |||
5509 | ||||
5510 | if (src_die->Tag() != dst_die->Tag()) | |||
5511 | { | |||
5512 | if (log) | |||
5513 | log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) tags didn't match 0x%8.8x (%s)", | |||
5514 | src_class_die->GetOffset(), | |||
5515 | dst_class_die->GetOffset(), | |||
5516 | src_die->GetOffset(), | |||
5517 | DW_TAG_value_to_name(src_die->Tag()), | |||
5518 | dst_die->GetOffset(), | |||
5519 | DW_TAG_value_to_name(src_die->Tag())); | |||
5520 | fast_path = false; | |||
5521 | } | |||
5522 | ||||
5523 | const char *src_name = src_die->GetMangledName (src_symfile, src_cu); | |||
5524 | const char *dst_name = dst_die->GetMangledName (this, dst_cu); | |||
5525 | ||||
5526 | // Make sure the names match | |||
5527 | if (src_name == dst_name || (strcmp (src_name, dst_name) == 0)) | |||
5528 | continue; | |||
5529 | ||||
5530 | if (log) | |||
5531 | log->Printf("warning: tried to unique class DIE 0x%8.8x to 0x%8.8x, but 0x%8.8x (%s) names didn't match 0x%8.8x (%s)", | |||
5532 | src_class_die->GetOffset(), | |||
5533 | dst_class_die->GetOffset(), | |||
5534 | src_die->GetOffset(), | |||
5535 | src_name, | |||
5536 | dst_die->GetOffset(), | |||
5537 | dst_name); | |||
5538 | ||||
5539 | fast_path = false; | |||
5540 | } | |||
5541 | } | |||
5542 | ||||
5543 | // Now do the work of linking the DeclContexts and Types. | |||
5544 | if (fast_path) | |||
5545 | { | |||
5546 | // We can do this quickly. Just run across the tables index-for-index since | |||
5547 | // we know each node has matching names and tags. | |||
5548 | for (idx = 0; idx < src_size; ++idx) | |||
5549 | { | |||
5550 | src_die = src_name_to_die.GetValueAtIndexUnchecked (idx); | |||
5551 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked (idx); | |||
5552 | ||||
5553 | clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die]; | |||
5554 | if (src_decl_ctx) | |||
5555 | { | |||
5556 | if (log) | |||
5557 | log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||
5558 | static_cast<void*>(src_decl_ctx), | |||
5559 | src_die->GetOffset(), dst_die->GetOffset()); | |||
5560 | LinkDeclContextToDIE (src_decl_ctx, dst_die); | |||
5561 | } | |||
5562 | else | |||
5563 | { | |||
5564 | if (log) | |||
5565 | log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", | |||
5566 | src_die->GetOffset(), dst_die->GetOffset()); | |||
5567 | } | |||
5568 | ||||
5569 | Type *src_child_type = m_die_to_type[src_die]; | |||
5570 | if (src_child_type) | |||
5571 | { | |||
5572 | if (log) | |||
5573 | log->Printf ("uniquing type %p (uid=0x%" PRIx64"l" "x" ") from 0x%8.8x for 0x%8.8x", | |||
5574 | static_cast<void*>(src_child_type), | |||
5575 | src_child_type->GetID(), | |||
5576 | src_die->GetOffset(), dst_die->GetOffset()); | |||
5577 | m_die_to_type[dst_die] = src_child_type; | |||
5578 | } | |||
5579 | else | |||
5580 | { | |||
5581 | if (log) | |||
5582 | log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||
5583 | } | |||
5584 | } | |||
5585 | } | |||
5586 | else | |||
5587 | { | |||
5588 | // We must do this slowly. For each member of the destination, look | |||
5589 | // up a member in the source with the same name, check its tag, and | |||
5590 | // unique them if everything matches up. Report failures. | |||
5591 | ||||
5592 | if (!src_name_to_die.IsEmpty() && !dst_name_to_die.IsEmpty()) | |||
5593 | { | |||
5594 | src_name_to_die.Sort(); | |||
5595 | ||||
5596 | for (idx = 0; idx < dst_size; ++idx) | |||
5597 | { | |||
5598 | const char *dst_name = dst_name_to_die.GetCStringAtIndex(idx); | |||
5599 | dst_die = dst_name_to_die.GetValueAtIndexUnchecked(idx); | |||
5600 | src_die = src_name_to_die.Find(dst_name, NULL__null); | |||
5601 | ||||
5602 | if (src_die && (src_die->Tag() == dst_die->Tag())) | |||
5603 | { | |||
5604 | clang::DeclContext *src_decl_ctx = src_symfile->m_die_to_decl_ctx[src_die]; | |||
5605 | if (src_decl_ctx) | |||
5606 | { | |||
5607 | if (log) | |||
5608 | log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||
5609 | static_cast<void*>(src_decl_ctx), | |||
5610 | src_die->GetOffset(), | |||
5611 | dst_die->GetOffset()); | |||
5612 | LinkDeclContextToDIE (src_decl_ctx, dst_die); | |||
5613 | } | |||
5614 | else | |||
5615 | { | |||
5616 | if (log) | |||
5617 | log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||
5618 | } | |||
5619 | ||||
5620 | Type *src_child_type = m_die_to_type[src_die]; | |||
5621 | if (src_child_type) | |||
5622 | { | |||
5623 | if (log) | |||
5624 | log->Printf ("uniquing type %p (uid=0x%" PRIx64"l" "x" ") from 0x%8.8x for 0x%8.8x", | |||
5625 | static_cast<void*>(src_child_type), | |||
5626 | src_child_type->GetID(), | |||
5627 | src_die->GetOffset(), | |||
5628 | dst_die->GetOffset()); | |||
5629 | m_die_to_type[dst_die] = src_child_type; | |||
5630 | } | |||
5631 | else | |||
5632 | { | |||
5633 | if (log) | |||
5634 | log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||
5635 | } | |||
5636 | } | |||
5637 | else | |||
5638 | { | |||
5639 | if (log) | |||
5640 | log->Printf ("warning: couldn't find a match for 0x%8.8x", dst_die->GetOffset()); | |||
5641 | ||||
5642 | failures.Append(dst_die); | |||
5643 | } | |||
5644 | } | |||
5645 | } | |||
5646 | } | |||
5647 | ||||
5648 | const uint32_t src_size_artificial = src_name_to_die_artificial.GetSize (); | |||
5649 | const uint32_t dst_size_artificial = dst_name_to_die_artificial.GetSize (); | |||
5650 | ||||
5651 | UniqueCStringMap<const DWARFDebugInfoEntry *> name_to_die_artificial_not_in_src; | |||
5652 | ||||
5653 | if (src_size_artificial && dst_size_artificial) | |||
5654 | { | |||
5655 | dst_name_to_die_artificial.Sort(); | |||
5656 | ||||
5657 | for (idx = 0; idx < src_size_artificial; ++idx) | |||
5658 | { | |||
5659 | const char *src_name_artificial = src_name_to_die_artificial.GetCStringAtIndex(idx); | |||
5660 | src_die = src_name_to_die_artificial.GetValueAtIndexUnchecked (idx); | |||
5661 | dst_die = dst_name_to_die_artificial.Find(src_name_artificial, NULL__null); | |||
5662 | ||||
5663 | if (dst_die) | |||
5664 | { | |||
5665 | // Both classes have the artificial types, link them | |||
5666 | clang::DeclContext *src_decl_ctx = m_die_to_decl_ctx[src_die]; | |||
5667 | if (src_decl_ctx) | |||
5668 | { | |||
5669 | if (log) | |||
5670 | log->Printf ("uniquing decl context %p from 0x%8.8x for 0x%8.8x", | |||
5671 | static_cast<void*>(src_decl_ctx), | |||
5672 | src_die->GetOffset(), dst_die->GetOffset()); | |||
5673 | LinkDeclContextToDIE (src_decl_ctx, dst_die); | |||
5674 | } | |||
5675 | else | |||
5676 | { | |||
5677 | if (log) | |||
5678 | log->Printf ("warning: tried to unique decl context from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||
5679 | } | |||
5680 | ||||
5681 | Type *src_child_type = m_die_to_type[src_die]; | |||
5682 | if (src_child_type) | |||
5683 | { | |||
5684 | if (log) | |||
5685 | log->Printf ("uniquing type %p (uid=0x%" PRIx64"l" "x" ") from 0x%8.8x for 0x%8.8x", | |||
5686 | static_cast<void*>(src_child_type), | |||
5687 | src_child_type->GetID(), | |||
5688 | src_die->GetOffset(), dst_die->GetOffset()); | |||
5689 | m_die_to_type[dst_die] = src_child_type; | |||
5690 | } | |||
5691 | else | |||
5692 | { | |||
5693 | if (log) | |||
5694 | log->Printf ("warning: tried to unique lldb_private::Type from 0x%8.8x for 0x%8.8x, but none was found", src_die->GetOffset(), dst_die->GetOffset()); | |||
5695 | } | |||
5696 | } | |||
5697 | } | |||
5698 | } | |||
5699 | ||||
5700 | if (dst_size_artificial) | |||
5701 | { | |||
5702 | for (idx = 0; idx < dst_size_artificial; ++idx) | |||
5703 | { | |||
5704 | const char *dst_name_artificial = dst_name_to_die_artificial.GetCStringAtIndex(idx); | |||
5705 | dst_die = dst_name_to_die_artificial.GetValueAtIndexUnchecked (idx); | |||
5706 | if (log) | |||
5707 | log->Printf ("warning: need to create artificial method for 0x%8.8x for method '%s'", dst_die->GetOffset(), dst_name_artificial); | |||
5708 | ||||
5709 | failures.Append(dst_die); | |||
5710 | } | |||
5711 | } | |||
5712 | ||||
5713 | return (failures.Size() != 0); | |||
5714 | } | |||
5715 | ||||
5716 | TypeSP | |||
5717 | SymbolFileDWARF::ParseType (const SymbolContext& sc, DWARFCompileUnit* dwarf_cu, const DWARFDebugInfoEntry *die, bool *type_is_new_ptr) | |||
5718 | { | |||
5719 | TypeSP type_sp; | |||
5720 | ||||
5721 | if (type_is_new_ptr) | |||
| ||||
5722 | *type_is_new_ptr = false; | |||
5723 | ||||
5724 | #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE) | |||
5725 | static DIEStack g_die_stack; | |||
5726 | DIEStack::ScopedPopper scoped_die_logger(g_die_stack); | |||
5727 | #endif | |||
5728 | ||||
5729 | AccessType accessibility = eAccessNone; | |||
5730 | if (die != NULL__null) | |||
5731 | { | |||
5732 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||
5733 | if (log) | |||
5734 | { | |||
5735 | const DWARFDebugInfoEntry *context_die; | |||
5736 | clang::DeclContext *context = GetClangDeclContextContainingDIE (dwarf_cu, die, &context_die); | |||
5737 | ||||
5738 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x, decl_ctx = %p (die 0x%8.8x)) %s name = '%s')", | |||
5739 | die->GetOffset(), | |||
5740 | static_cast<void*>(context), | |||
5741 | context_die->GetOffset(), | |||
5742 | DW_TAG_value_to_name(die->Tag()), | |||
5743 | die->GetName(this, dwarf_cu)); | |||
5744 | ||||
5745 | #if defined(LLDB_CONFIGURATION_DEBUG) || defined(LLDB_CONFIGURATION_RELEASE) | |||
5746 | scoped_die_logger.Push (dwarf_cu, die); | |||
5747 | g_die_stack.LogDIEs(log, this); | |||
5748 | #endif | |||
5749 | } | |||
5750 | // | |||
5751 | // Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO)); | |||
5752 | // if (log && dwarf_cu) | |||
5753 | // { | |||
5754 | // StreamString s; | |||
5755 | // die->DumpLocation (this, dwarf_cu, s); | |||
5756 | // GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDwarf::%s %s", __FUNCTION__, s.GetData()); | |||
5757 | // | |||
5758 | // } | |||
5759 | ||||
5760 | Type *type_ptr = m_die_to_type.lookup (die); | |||
5761 | TypeList* type_list = GetTypeList(); | |||
5762 | if (type_ptr == NULL__null) | |||
5763 | { | |||
5764 | ClangASTContext &ast = GetClangASTContext(); | |||
5765 | if (type_is_new_ptr) | |||
5766 | *type_is_new_ptr = true; | |||
5767 | ||||
5768 | const dw_tag_t tag = die->Tag(); | |||
5769 | ||||
5770 | bool is_forward_declaration = false; | |||
5771 | DWARFDebugInfoEntry::Attributes attributes; | |||
5772 | const char *type_name_cstr = NULL__null; | |||
5773 | ConstString type_name_const_str; | |||
5774 | Type::ResolveState resolve_state = Type::eResolveStateUnresolved; | |||
5775 | uint64_t byte_size = 0; | |||
5776 | Declaration decl; | |||
5777 | ||||
5778 | Type::EncodingDataType encoding_data_type = Type::eEncodingIsUID; | |||
5779 | ClangASTType clang_type; | |||
5780 | DWARFFormValue form_value; | |||
5781 | ||||
5782 | dw_attr_t attr; | |||
5783 | ||||
5784 | switch (tag) | |||
5785 | { | |||
5786 | case DW_TAG_base_type: | |||
5787 | case DW_TAG_pointer_type: | |||
5788 | case DW_TAG_reference_type: | |||
5789 | case DW_TAG_rvalue_reference_type: | |||
5790 | case DW_TAG_typedef: | |||
5791 | case DW_TAG_const_type: | |||
5792 | case DW_TAG_restrict_type: | |||
5793 | case DW_TAG_volatile_type: | |||
5794 | case DW_TAG_unspecified_type: | |||
5795 | { | |||
5796 | // Set a bit that lets us know that we are currently parsing this | |||
5797 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||
5798 | ||||
5799 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||
5800 | uint32_t encoding = 0; | |||
5801 | lldb::user_id_t encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||
5802 | ||||
5803 | if (num_attributes > 0) | |||
5804 | { | |||
5805 | uint32_t i; | |||
5806 | for (i=0; i<num_attributes; ++i) | |||
5807 | { | |||
5808 | attr = attributes.AttributeAtIndex(i); | |||
5809 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
5810 | { | |||
5811 | switch (attr) | |||
5812 | { | |||
5813 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
5814 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
5815 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
5816 | case DW_AT_name: | |||
5817 | ||||
5818 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||
5819 | // Work around a bug in llvm-gcc where they give a name to a reference type which doesn't | |||
5820 | // include the "&"... | |||
5821 | if (tag == DW_TAG_reference_type) | |||
5822 | { | |||
5823 | if (strchr (type_name_cstr, '&') == NULL__null) | |||
5824 | type_name_cstr = NULL__null; | |||
5825 | } | |||
5826 | if (type_name_cstr) | |||
5827 | type_name_const_str.SetCString(type_name_cstr); | |||
5828 | break; | |||
5829 | case DW_AT_byte_size: byte_size = form_value.Unsigned(); break; | |||
5830 | case DW_AT_encoding: encoding = form_value.Unsigned(); break; | |||
5831 | case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break; | |||
5832 | default: | |||
5833 | case DW_AT_sibling: | |||
5834 | break; | |||
5835 | } | |||
5836 | } | |||
5837 | } | |||
5838 | } | |||
5839 | ||||
5840 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\") type => 0x%8.8lx\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr, encoding_uid); | |||
5841 | ||||
5842 | switch (tag) | |||
5843 | { | |||
5844 | default: | |||
5845 | break; | |||
5846 | ||||
5847 | case DW_TAG_unspecified_type: | |||
5848 | if (strcmp(type_name_cstr, "nullptr_t") == 0 || | |||
5849 | strcmp(type_name_cstr, "decltype(nullptr)") == 0 ) | |||
5850 | { | |||
5851 | resolve_state = Type::eResolveStateFull; | |||
5852 | clang_type = ast.GetBasicType(eBasicTypeNullPtr); | |||
5853 | break; | |||
5854 | } | |||
5855 | // Fall through to base type below in case we can handle the type there... | |||
5856 | ||||
5857 | case DW_TAG_base_type: | |||
5858 | resolve_state = Type::eResolveStateFull; | |||
5859 | clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (type_name_cstr, | |||
5860 | encoding, | |||
5861 | byte_size * 8); | |||
5862 | break; | |||
5863 | ||||
5864 | case DW_TAG_pointer_type: encoding_data_type = Type::eEncodingIsPointerUID; break; | |||
5865 | case DW_TAG_reference_type: encoding_data_type = Type::eEncodingIsLValueReferenceUID; break; | |||
5866 | case DW_TAG_rvalue_reference_type: encoding_data_type = Type::eEncodingIsRValueReferenceUID; break; | |||
5867 | case DW_TAG_typedef: encoding_data_type = Type::eEncodingIsTypedefUID; break; | |||
5868 | case DW_TAG_const_type: encoding_data_type = Type::eEncodingIsConstUID; break; | |||
5869 | case DW_TAG_restrict_type: encoding_data_type = Type::eEncodingIsRestrictUID; break; | |||
5870 | case DW_TAG_volatile_type: encoding_data_type = Type::eEncodingIsVolatileUID; break; | |||
5871 | } | |||
5872 | ||||
5873 | if (!clang_type && (encoding_data_type == Type::eEncodingIsPointerUID || encoding_data_type == Type::eEncodingIsTypedefUID) && sc.comp_unit != NULL__null) | |||
5874 | { | |||
5875 | bool translation_unit_is_objc = (sc.comp_unit->GetLanguage() == eLanguageTypeObjC || sc.comp_unit->GetLanguage() == eLanguageTypeObjC_plus_plus); | |||
5876 | ||||
5877 | if (translation_unit_is_objc) | |||
5878 | { | |||
5879 | if (type_name_cstr != NULL__null) | |||
5880 | { | |||
5881 | static ConstString g_objc_type_name_id("id"); | |||
5882 | static ConstString g_objc_type_name_Class("Class"); | |||
5883 | static ConstString g_objc_type_name_selector("SEL"); | |||
5884 | ||||
5885 | if (type_name_const_str == g_objc_type_name_id) | |||
5886 | { | |||
5887 | if (log) | |||
5888 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'id' built-in type.", | |||
5889 | die->GetOffset(), | |||
5890 | DW_TAG_value_to_name(die->Tag()), | |||
5891 | die->GetName(this, dwarf_cu)); | |||
5892 | clang_type = ast.GetBasicType(eBasicTypeObjCID); | |||
5893 | encoding_data_type = Type::eEncodingIsUID; | |||
5894 | encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||
5895 | resolve_state = Type::eResolveStateFull; | |||
5896 | ||||
5897 | } | |||
5898 | else if (type_name_const_str == g_objc_type_name_Class) | |||
5899 | { | |||
5900 | if (log) | |||
5901 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'Class' built-in type.", | |||
5902 | die->GetOffset(), | |||
5903 | DW_TAG_value_to_name(die->Tag()), | |||
5904 | die->GetName(this, dwarf_cu)); | |||
5905 | clang_type = ast.GetBasicType(eBasicTypeObjCClass); | |||
5906 | encoding_data_type = Type::eEncodingIsUID; | |||
5907 | encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||
5908 | resolve_state = Type::eResolveStateFull; | |||
5909 | } | |||
5910 | else if (type_name_const_str == g_objc_type_name_selector) | |||
5911 | { | |||
5912 | if (log) | |||
5913 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is Objective C 'selector' built-in type.", | |||
5914 | die->GetOffset(), | |||
5915 | DW_TAG_value_to_name(die->Tag()), | |||
5916 | die->GetName(this, dwarf_cu)); | |||
5917 | clang_type = ast.GetBasicType(eBasicTypeObjCSel); | |||
5918 | encoding_data_type = Type::eEncodingIsUID; | |||
5919 | encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||
5920 | resolve_state = Type::eResolveStateFull; | |||
5921 | } | |||
5922 | } | |||
5923 | else if (encoding_data_type == Type::eEncodingIsPointerUID && encoding_uid != LLDB_INVALID_UID(18446744073709551615UL)) | |||
5924 | { | |||
5925 | // Clang sometimes erroneously emits id as objc_object*. In that case we fix up the type to "id". | |||
5926 | ||||
5927 | DWARFDebugInfoEntry* encoding_die = dwarf_cu->GetDIEPtr(encoding_uid); | |||
5928 | ||||
5929 | if (encoding_die && encoding_die->Tag() == DW_TAG_structure_type) | |||
5930 | { | |||
5931 | if (const char *struct_name = encoding_die->GetAttributeValueAsString(this, dwarf_cu, DW_AT_name, NULL__null)) | |||
5932 | { | |||
5933 | if (!strcmp(struct_name, "objc_object")) | |||
5934 | { | |||
5935 | if (log) | |||
5936 | GetObjectFile()->GetModule()->LogMessage (log, "SymbolFileDWARF::ParseType (die = 0x%8.8x) %s '%s' is 'objc_object*', which we overrode to 'id'.", | |||
5937 | die->GetOffset(), | |||
5938 | DW_TAG_value_to_name(die->Tag()), | |||
5939 | die->GetName(this, dwarf_cu)); | |||
5940 | clang_type = ast.GetBasicType(eBasicTypeObjCID); | |||
5941 | encoding_data_type = Type::eEncodingIsUID; | |||
5942 | encoding_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||
5943 | resolve_state = Type::eResolveStateFull; | |||
5944 | } | |||
5945 | } | |||
5946 | } | |||
5947 | } | |||
5948 | } | |||
5949 | } | |||
5950 | ||||
5951 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||
5952 | this, | |||
5953 | type_name_const_str, | |||
5954 | byte_size, | |||
5955 | NULL__null, | |||
5956 | encoding_uid, | |||
5957 | encoding_data_type, | |||
5958 | &decl, | |||
5959 | clang_type, | |||
5960 | resolve_state)); | |||
5961 | ||||
5962 | m_die_to_type[die] = type_sp.get(); | |||
5963 | ||||
5964 | // Type* encoding_type = GetUniquedTypeForDIEOffset(encoding_uid, type_sp, NULL, 0, 0, false); | |||
5965 | // if (encoding_type != NULL) | |||
5966 | // { | |||
5967 | // if (encoding_type != DIE_IS_BEING_PARSED) | |||
5968 | // type_sp->SetEncodingType(encoding_type); | |||
5969 | // else | |||
5970 | // m_indirect_fixups.push_back(type_sp.get()); | |||
5971 | // } | |||
5972 | } | |||
5973 | break; | |||
5974 | ||||
5975 | case DW_TAG_structure_type: | |||
5976 | case DW_TAG_union_type: | |||
5977 | case DW_TAG_class_type: | |||
5978 | { | |||
5979 | // Set a bit that lets us know that we are currently parsing this | |||
5980 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||
5981 | bool byte_size_valid = false; | |||
5982 | ||||
5983 | LanguageType class_language = eLanguageTypeUnknown; | |||
5984 | bool is_complete_objc_class = false; | |||
5985 | //bool struct_is_class = false; | |||
5986 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||
5987 | if (num_attributes > 0) | |||
5988 | { | |||
5989 | uint32_t i; | |||
5990 | for (i=0; i<num_attributes; ++i) | |||
5991 | { | |||
5992 | attr = attributes.AttributeAtIndex(i); | |||
5993 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
5994 | { | |||
5995 | switch (attr) | |||
5996 | { | |||
5997 | case DW_AT_decl_file: | |||
5998 | if (dwarf_cu->DW_AT_decl_file_attributes_are_invalid()) | |||
5999 | { | |||
6000 | // llvm-gcc outputs invalid DW_AT_decl_file attributes that always | |||
6001 | // point to the compile unit file, so we clear this invalid value | |||
6002 | // so that we can still unique types efficiently. | |||
6003 | decl.SetFile(FileSpec ("<invalid>", false)); | |||
6004 | } | |||
6005 | else | |||
6006 | decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); | |||
6007 | break; | |||
6008 | ||||
6009 | case DW_AT_decl_line: | |||
6010 | decl.SetLine(form_value.Unsigned()); | |||
6011 | break; | |||
6012 | ||||
6013 | case DW_AT_decl_column: | |||
6014 | decl.SetColumn(form_value.Unsigned()); | |||
6015 | break; | |||
6016 | ||||
6017 | case DW_AT_name: | |||
6018 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||
6019 | type_name_const_str.SetCString(type_name_cstr); | |||
6020 | break; | |||
6021 | ||||
6022 | case DW_AT_byte_size: | |||
6023 | byte_size = form_value.Unsigned(); | |||
6024 | byte_size_valid = true; | |||
6025 | break; | |||
6026 | ||||
6027 | case DW_AT_accessibility: | |||
6028 | accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); | |||
6029 | break; | |||
6030 | ||||
6031 | case DW_AT_declaration: | |||
6032 | is_forward_declaration = form_value.Boolean(); | |||
6033 | break; | |||
6034 | ||||
6035 | case DW_AT_APPLE_runtime_class: | |||
6036 | class_language = (LanguageType)form_value.Signed(); | |||
6037 | break; | |||
6038 | ||||
6039 | case DW_AT_APPLE_objc_complete_type: | |||
6040 | is_complete_objc_class = form_value.Signed(); | |||
6041 | break; | |||
6042 | ||||
6043 | case DW_AT_allocated: | |||
6044 | case DW_AT_associated: | |||
6045 | case DW_AT_data_location: | |||
6046 | case DW_AT_description: | |||
6047 | case DW_AT_start_scope: | |||
6048 | case DW_AT_visibility: | |||
6049 | default: | |||
6050 | case DW_AT_sibling: | |||
6051 | break; | |||
6052 | } | |||
6053 | } | |||
6054 | } | |||
6055 | } | |||
6056 | ||||
6057 | // UniqueDWARFASTType is large, so don't create a local variables on the | |||
6058 | // stack, put it on the heap. This function is often called recursively | |||
6059 | // and clang isn't good and sharing the stack space for variables in different blocks. | |||
6060 | std::unique_ptr<UniqueDWARFASTType> unique_ast_entry_ap(new UniqueDWARFASTType()); | |||
6061 | ||||
6062 | // Only try and unique the type if it has a name. | |||
6063 | if (type_name_const_str && | |||
6064 | GetUniqueDWARFASTTypeMap().Find (type_name_const_str, | |||
6065 | this, | |||
6066 | dwarf_cu, | |||
6067 | die, | |||
6068 | decl, | |||
6069 | byte_size_valid ? byte_size : -1, | |||
6070 | *unique_ast_entry_ap)) | |||
6071 | { | |||
6072 | // We have already parsed this type or from another | |||
6073 | // compile unit. GCC loves to use the "one definition | |||
6074 | // rule" which can result in multiple definitions | |||
6075 | // of the same class over and over in each compile | |||
6076 | // unit. | |||
6077 | type_sp = unique_ast_entry_ap->m_type_sp; | |||
6078 | if (type_sp) | |||
6079 | { | |||
6080 | m_die_to_type[die] = type_sp.get(); | |||
6081 | return type_sp; | |||
6082 | } | |||
6083 | } | |||
6084 | ||||
6085 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr); | |||
6086 | ||||
6087 | int tag_decl_kind = -1; | |||
6088 | AccessType default_accessibility = eAccessNone; | |||
6089 | if (tag == DW_TAG_structure_type) | |||
6090 | { | |||
6091 | tag_decl_kind = clang::TTK_Struct; | |||
6092 | default_accessibility = eAccessPublic; | |||
6093 | } | |||
6094 | else if (tag == DW_TAG_union_type) | |||
6095 | { | |||
6096 | tag_decl_kind = clang::TTK_Union; | |||
6097 | default_accessibility = eAccessPublic; | |||
6098 | } | |||
6099 | else if (tag == DW_TAG_class_type) | |||
6100 | { | |||
6101 | tag_decl_kind = clang::TTK_Class; | |||
6102 | default_accessibility = eAccessPrivate; | |||
6103 | } | |||
6104 | ||||
6105 | if (byte_size_valid && byte_size == 0 && type_name_cstr && | |||
6106 | die->HasChildren() == false && | |||
6107 | sc.comp_unit->GetLanguage() == eLanguageTypeObjC) | |||
6108 | { | |||
6109 | // Work around an issue with clang at the moment where | |||
6110 | // forward declarations for objective C classes are emitted | |||
6111 | // as: | |||
6112 | // DW_TAG_structure_type [2] | |||
6113 | // DW_AT_name( "ForwardObjcClass" ) | |||
6114 | // DW_AT_byte_size( 0x00 ) | |||
6115 | // DW_AT_decl_file( "..." ) | |||
6116 | // DW_AT_decl_line( 1 ) | |||
6117 | // | |||
6118 | // Note that there is no DW_AT_declaration and there are | |||
6119 | // no children, and the byte size is zero. | |||
6120 | is_forward_declaration = true; | |||
6121 | } | |||
6122 | ||||
6123 | if (class_language == eLanguageTypeObjC || | |||
6124 | class_language == eLanguageTypeObjC_plus_plus) | |||
6125 | { | |||
6126 | if (!is_complete_objc_class && Supports_DW_AT_APPLE_objc_complete_type(dwarf_cu)) | |||
6127 | { | |||
6128 | // We have a valid eSymbolTypeObjCClass class symbol whose | |||
6129 | // name matches the current objective C class that we | |||
6130 | // are trying to find and this DIE isn't the complete | |||
6131 | // definition (we checked is_complete_objc_class above and | |||
6132 | // know it is false), so the real definition is in here somewhere | |||
6133 | type_sp = FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true); | |||
6134 | ||||
6135 | if (!type_sp && GetDebugMapSymfile ()) | |||
6136 | { | |||
6137 | // We weren't able to find a full declaration in | |||
6138 | // this DWARF, see if we have a declaration anywhere | |||
6139 | // else... | |||
6140 | type_sp = m_debug_map_symfile->FindCompleteObjCDefinitionTypeForDIE (die, type_name_const_str, true); | |||
6141 | } | |||
6142 | ||||
6143 | if (type_sp) | |||
6144 | { | |||
6145 | if (log) | |||
6146 | { | |||
6147 | GetObjectFile()->GetModule()->LogMessage (log, | |||
6148 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is an incomplete objc type, complete type is 0x%8.8" PRIx64"l" "x", | |||
6149 | static_cast<void*>(this), | |||
6150 | die->GetOffset(), | |||
6151 | DW_TAG_value_to_name(tag), | |||
6152 | type_name_cstr, | |||
6153 | type_sp->GetID()); | |||
6154 | } | |||
6155 | ||||
6156 | // We found a real definition for this type elsewhere | |||
6157 | // so lets use it and cache the fact that we found | |||
6158 | // a complete type for this die | |||
6159 | m_die_to_type[die] = type_sp.get(); | |||
6160 | return type_sp; | |||
6161 | } | |||
6162 | } | |||
6163 | } | |||
6164 | ||||
6165 | ||||
6166 | if (is_forward_declaration) | |||
6167 | { | |||
6168 | // We have a forward declaration to a type and we need | |||
6169 | // to try and find a full declaration. We look in the | |||
6170 | // current type index just in case we have a forward | |||
6171 | // declaration followed by an actual declarations in the | |||
6172 | // DWARF. If this fails, we need to look elsewhere... | |||
6173 | if (log) | |||
6174 | { | |||
6175 | GetObjectFile()->GetModule()->LogMessage (log, | |||
6176 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, trying to find complete type", | |||
6177 | static_cast<void*>(this), | |||
6178 | die->GetOffset(), | |||
6179 | DW_TAG_value_to_name(tag), | |||
6180 | type_name_cstr); | |||
6181 | } | |||
6182 | ||||
6183 | DWARFDeclContext die_decl_ctx; | |||
6184 | die->GetDWARFDeclContext(this, dwarf_cu, die_decl_ctx); | |||
6185 | ||||
6186 | //type_sp = FindDefinitionTypeForDIE (dwarf_cu, die, type_name_const_str); | |||
6187 | type_sp = FindDefinitionTypeForDWARFDeclContext (die_decl_ctx); | |||
6188 | ||||
6189 | if (!type_sp && GetDebugMapSymfile ()) | |||
6190 | { | |||
6191 | // We weren't able to find a full declaration in | |||
6192 | // this DWARF, see if we have a declaration anywhere | |||
6193 | // else... | |||
6194 | type_sp = m_debug_map_symfile->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx); | |||
6195 | } | |||
6196 | ||||
6197 | if (type_sp) | |||
6198 | { | |||
6199 | if (log) | |||
6200 | { | |||
6201 | GetObjectFile()->GetModule()->LogMessage (log, | |||
6202 | "SymbolFileDWARF(%p) - 0x%8.8x: %s type \"%s\" is a forward declaration, complete type is 0x%8.8" PRIx64"l" "x", | |||
6203 | static_cast<void*>(this), | |||
6204 | die->GetOffset(), | |||
6205 | DW_TAG_value_to_name(tag), | |||
6206 | type_name_cstr, | |||
6207 | type_sp->GetID()); | |||
6208 | } | |||
6209 | ||||
6210 | // We found a real definition for this type elsewhere | |||
6211 | // so lets use it and cache the fact that we found | |||
6212 | // a complete type for this die | |||
6213 | m_die_to_type[die] = type_sp.get(); | |||
6214 | return type_sp; | |||
6215 | } | |||
6216 | } | |||
6217 | assert (tag_decl_kind != -1)((tag_decl_kind != -1) ? static_cast<void> (0) : __assert_fail ("tag_decl_kind != -1", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 6217, __PRETTY_FUNCTION__)); | |||
6218 | bool clang_type_was_created = false; | |||
6219 | clang_type.SetClangType(ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die)); | |||
6220 | if (!clang_type) | |||
6221 | { | |||
6222 | const DWARFDebugInfoEntry *decl_ctx_die; | |||
6223 | ||||
6224 | clang::DeclContext *decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die); | |||
6225 | if (accessibility == eAccessNone && decl_ctx) | |||
6226 | { | |||
6227 | // Check the decl context that contains this class/struct/union. | |||
6228 | // If it is a class we must give it an accessibility. | |||
6229 | const clang::Decl::Kind containing_decl_kind = decl_ctx->getDeclKind(); | |||
6230 | if (DeclKindIsCXXClass (containing_decl_kind)) | |||
6231 | accessibility = default_accessibility; | |||
6232 | } | |||
6233 | ||||
6234 | ClangASTMetadata metadata; | |||
6235 | metadata.SetUserID(MakeUserID(die->GetOffset())); | |||
6236 | metadata.SetIsDynamicCXXType(ClassOrStructIsVirtual (dwarf_cu, die)); | |||
6237 | ||||
6238 | if (type_name_cstr && strchr (type_name_cstr, '<')) | |||
6239 | { | |||
6240 | ClangASTContext::TemplateParameterInfos template_param_infos; | |||
6241 | if (ParseTemplateParameterInfos (dwarf_cu, die, template_param_infos)) | |||
6242 | { | |||
6243 | clang::ClassTemplateDecl *class_template_decl = ParseClassTemplateDecl (decl_ctx, | |||
6244 | accessibility, | |||
6245 | type_name_cstr, | |||
6246 | tag_decl_kind, | |||
6247 | template_param_infos); | |||
6248 | ||||
6249 | clang::ClassTemplateSpecializationDecl *class_specialization_decl = ast.CreateClassTemplateSpecializationDecl (decl_ctx, | |||
6250 | class_template_decl, | |||
6251 | tag_decl_kind, | |||
6252 | template_param_infos); | |||
6253 | clang_type = ast.CreateClassTemplateSpecializationType (class_specialization_decl); | |||
6254 | clang_type_was_created = true; | |||
6255 | ||||
6256 | GetClangASTContext().SetMetadata (class_template_decl, metadata); | |||
6257 | GetClangASTContext().SetMetadata (class_specialization_decl, metadata); | |||
6258 | } | |||
6259 | } | |||
6260 | ||||
6261 | if (!clang_type_was_created) | |||
6262 | { | |||
6263 | clang_type_was_created = true; | |||
6264 | clang_type = ast.CreateRecordType (decl_ctx, | |||
6265 | accessibility, | |||
6266 | type_name_cstr, | |||
6267 | tag_decl_kind, | |||
6268 | class_language, | |||
6269 | &metadata); | |||
6270 | } | |||
6271 | } | |||
6272 | ||||
6273 | // Store a forward declaration to this class type in case any | |||
6274 | // parameters in any class methods need it for the clang | |||
6275 | // types for function prototypes. | |||
6276 | LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die); | |||
6277 | type_sp.reset (new Type (MakeUserID(die->GetOffset()), | |||
6278 | this, | |||
6279 | type_name_const_str, | |||
6280 | byte_size, | |||
6281 | NULL__null, | |||
6282 | LLDB_INVALID_UID(18446744073709551615UL), | |||
6283 | Type::eEncodingIsUID, | |||
6284 | &decl, | |||
6285 | clang_type, | |||
6286 | Type::eResolveStateForward)); | |||
6287 | ||||
6288 | type_sp->SetIsCompleteObjCClass(is_complete_objc_class); | |||
6289 | ||||
6290 | ||||
6291 | // Add our type to the unique type map so we don't | |||
6292 | // end up creating many copies of the same type over | |||
6293 | // and over in the ASTContext for our module | |||
6294 | unique_ast_entry_ap->m_type_sp = type_sp; | |||
6295 | unique_ast_entry_ap->m_symfile = this; | |||
6296 | unique_ast_entry_ap->m_cu = dwarf_cu; | |||
6297 | unique_ast_entry_ap->m_die = die; | |||
6298 | unique_ast_entry_ap->m_declaration = decl; | |||
6299 | unique_ast_entry_ap->m_byte_size = byte_size; | |||
6300 | GetUniqueDWARFASTTypeMap().Insert (type_name_const_str, | |||
6301 | *unique_ast_entry_ap); | |||
6302 | ||||
6303 | if (is_forward_declaration && die->HasChildren()) | |||
6304 | { | |||
6305 | // Check to see if the DIE actually has a definition, some version of GCC will | |||
6306 | // emit DIEs with DW_AT_declaration set to true, but yet still have subprogram, | |||
6307 | // members, or inheritance, so we can't trust it | |||
6308 | const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); | |||
6309 | while (child_die) | |||
6310 | { | |||
6311 | switch (child_die->Tag()) | |||
6312 | { | |||
6313 | case DW_TAG_inheritance: | |||
6314 | case DW_TAG_subprogram: | |||
6315 | case DW_TAG_member: | |||
6316 | case DW_TAG_APPLE_property: | |||
6317 | case DW_TAG_class_type: | |||
6318 | case DW_TAG_structure_type: | |||
6319 | case DW_TAG_enumeration_type: | |||
6320 | case DW_TAG_typedef: | |||
6321 | case DW_TAG_union_type: | |||
6322 | child_die = NULL__null; | |||
6323 | is_forward_declaration = false; | |||
6324 | break; | |||
6325 | default: | |||
6326 | child_die = child_die->GetSibling(); | |||
6327 | break; | |||
6328 | } | |||
6329 | } | |||
6330 | } | |||
6331 | ||||
6332 | if (!is_forward_declaration) | |||
6333 | { | |||
6334 | // Always start the definition for a class type so that | |||
6335 | // if the class has child classes or types that require | |||
6336 | // the class to be created for use as their decl contexts | |||
6337 | // the class will be ready to accept these child definitions. | |||
6338 | if (die->HasChildren() == false) | |||
6339 | { | |||
6340 | // No children for this struct/union/class, lets finish it | |||
6341 | clang_type.StartTagDeclarationDefinition (); | |||
6342 | clang_type.CompleteTagDeclarationDefinition (); | |||
6343 | ||||
6344 | if (tag == DW_TAG_structure_type) // this only applies in C | |||
6345 | { | |||
6346 | clang::RecordDecl *record_decl = clang_type.GetAsRecordDecl(); | |||
6347 | ||||
6348 | if (record_decl) | |||
6349 | m_record_decl_to_layout_map.insert(std::make_pair(record_decl, LayoutInfo())); | |||
6350 | } | |||
6351 | } | |||
6352 | else if (clang_type_was_created) | |||
6353 | { | |||
6354 | // Start the definition if the class is not objective C since | |||
6355 | // the underlying decls respond to isCompleteDefinition(). Objective | |||
6356 | // C decls don't respond to isCompleteDefinition() so we can't | |||
6357 | // start the declaration definition right away. For C++ class/union/structs | |||
6358 | // we want to start the definition in case the class is needed as the | |||
6359 | // declaration context for a contained class or type without the need | |||
6360 | // to complete that type.. | |||
6361 | ||||
6362 | if (class_language != eLanguageTypeObjC && | |||
6363 | class_language != eLanguageTypeObjC_plus_plus) | |||
6364 | clang_type.StartTagDeclarationDefinition (); | |||
6365 | ||||
6366 | // Leave this as a forward declaration until we need | |||
6367 | // to know the details of the type. lldb_private::Type | |||
6368 | // will automatically call the SymbolFile virtual function | |||
6369 | // "SymbolFileDWARF::ResolveClangOpaqueTypeDefinition(Type *)" | |||
6370 | // When the definition needs to be defined. | |||
6371 | m_forward_decl_die_to_clang_type[die] = clang_type.GetOpaqueQualType(); | |||
6372 | m_forward_decl_clang_type_to_die[clang_type.RemoveFastQualifiers().GetOpaqueQualType()] = die; | |||
6373 | clang_type.SetHasExternalStorage (true); | |||
6374 | } | |||
6375 | } | |||
6376 | ||||
6377 | } | |||
6378 | break; | |||
6379 | ||||
6380 | case DW_TAG_enumeration_type: | |||
6381 | { | |||
6382 | // Set a bit that lets us know that we are currently parsing this | |||
6383 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||
6384 | ||||
6385 | lldb::user_id_t encoding_uid = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
6386 | ||||
6387 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||
6388 | if (num_attributes > 0) | |||
6389 | { | |||
6390 | uint32_t i; | |||
6391 | ||||
6392 | for (i=0; i<num_attributes; ++i) | |||
6393 | { | |||
6394 | attr = attributes.AttributeAtIndex(i); | |||
6395 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
6396 | { | |||
6397 | switch (attr) | |||
6398 | { | |||
6399 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
6400 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
6401 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
6402 | case DW_AT_name: | |||
6403 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||
6404 | type_name_const_str.SetCString(type_name_cstr); | |||
6405 | break; | |||
6406 | case DW_AT_type: encoding_uid = form_value.Reference(dwarf_cu); break; | |||
6407 | case DW_AT_byte_size: byte_size = form_value.Unsigned(); break; | |||
6408 | case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||
6409 | case DW_AT_declaration: break; //is_forward_declaration = form_value.Boolean(); break; | |||
6410 | case DW_AT_allocated: | |||
6411 | case DW_AT_associated: | |||
6412 | case DW_AT_bit_stride: | |||
6413 | case DW_AT_byte_stride: | |||
6414 | case DW_AT_data_location: | |||
6415 | case DW_AT_description: | |||
6416 | case DW_AT_start_scope: | |||
6417 | case DW_AT_visibility: | |||
6418 | case DW_AT_specification: | |||
6419 | case DW_AT_abstract_origin: | |||
6420 | case DW_AT_sibling: | |||
6421 | break; | |||
6422 | } | |||
6423 | } | |||
6424 | } | |||
6425 | ||||
6426 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr); | |||
6427 | ||||
6428 | ClangASTType enumerator_clang_type; | |||
6429 | clang_type.SetClangType (ast.getASTContext(), m_forward_decl_die_to_clang_type.lookup (die)); | |||
6430 | if (!clang_type) | |||
6431 | { | |||
6432 | if (encoding_uid != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
6433 | { | |||
6434 | Type *enumerator_type = ResolveTypeUID(encoding_uid); | |||
6435 | if (enumerator_type) | |||
6436 | enumerator_clang_type = enumerator_type->GetClangFullType(); | |||
6437 | } | |||
6438 | ||||
6439 | if (!enumerator_clang_type) | |||
6440 | enumerator_clang_type = ast.GetBuiltinTypeForDWARFEncodingAndBitSize (NULL__null, | |||
6441 | DW_ATE_signed, | |||
6442 | byte_size * 8); | |||
6443 | ||||
6444 | clang_type = ast.CreateEnumerationType (type_name_cstr, | |||
6445 | GetClangDeclContextContainingDIE (dwarf_cu, die, NULL__null), | |||
6446 | decl, | |||
6447 | enumerator_clang_type); | |||
6448 | } | |||
6449 | else | |||
6450 | { | |||
6451 | enumerator_clang_type = clang_type.GetEnumerationIntegerType (); | |||
6452 | } | |||
6453 | ||||
6454 | LinkDeclContextToDIE(clang_type.GetDeclContextForType(), die); | |||
6455 | ||||
6456 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||
6457 | this, | |||
6458 | type_name_const_str, | |||
6459 | byte_size, | |||
6460 | NULL__null, | |||
6461 | encoding_uid, | |||
6462 | Type::eEncodingIsUID, | |||
6463 | &decl, | |||
6464 | clang_type, | |||
6465 | Type::eResolveStateForward)); | |||
6466 | ||||
6467 | clang_type.StartTagDeclarationDefinition (); | |||
6468 | if (die->HasChildren()) | |||
6469 | { | |||
6470 | SymbolContext cu_sc(GetCompUnitForDWARFCompUnit(dwarf_cu)); | |||
6471 | bool is_signed = false; | |||
6472 | enumerator_clang_type.IsIntegerType(is_signed); | |||
6473 | ParseChildEnumerators(cu_sc, clang_type, is_signed, type_sp->GetByteSize(), dwarf_cu, die); | |||
6474 | } | |||
6475 | clang_type.CompleteTagDeclarationDefinition (); | |||
6476 | } | |||
6477 | } | |||
6478 | break; | |||
6479 | ||||
6480 | case DW_TAG_inlined_subroutine: | |||
6481 | case DW_TAG_subprogram: | |||
6482 | case DW_TAG_subroutine_type: | |||
6483 | { | |||
6484 | // Set a bit that lets us know that we are currently parsing this | |||
6485 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||
6486 | ||||
6487 | //const char *mangled = NULL; | |||
6488 | dw_offset_t type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
6489 | bool is_variadic = false; | |||
6490 | bool is_inline = false; | |||
6491 | bool is_static = false; | |||
6492 | bool is_virtual = false; | |||
6493 | bool is_explicit = false; | |||
6494 | bool is_artificial = false; | |||
6495 | dw_offset_t specification_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
6496 | dw_offset_t abstract_origin_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
6497 | dw_offset_t object_pointer_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
6498 | ||||
6499 | unsigned type_quals = 0; | |||
6500 | clang::StorageClass storage = clang::SC_None;//, Extern, Static, PrivateExtern | |||
6501 | ||||
6502 | ||||
6503 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||
6504 | if (num_attributes > 0) | |||
6505 | { | |||
6506 | uint32_t i; | |||
6507 | for (i=0; i<num_attributes; ++i) | |||
6508 | { | |||
6509 | attr = attributes.AttributeAtIndex(i); | |||
6510 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
6511 | { | |||
6512 | switch (attr) | |||
6513 | { | |||
6514 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
6515 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
6516 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
6517 | case DW_AT_name: | |||
6518 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||
6519 | type_name_const_str.SetCString(type_name_cstr); | |||
6520 | break; | |||
6521 | ||||
6522 | case DW_AT_linkage_name: | |||
6523 | case DW_AT_MIPS_linkage_name: break; // mangled = form_value.AsCString(&get_debug_str_data()); break; | |||
6524 | case DW_AT_type: type_die_offset = form_value.Reference(dwarf_cu); break; | |||
6525 | case DW_AT_accessibility: accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||
6526 | case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break; | |||
6527 | case DW_AT_inline: is_inline = form_value.Boolean(); break; | |||
6528 | case DW_AT_virtuality: is_virtual = form_value.Boolean(); break; | |||
6529 | case DW_AT_explicit: is_explicit = form_value.Boolean(); break; | |||
6530 | case DW_AT_artificial: is_artificial = form_value.Boolean(); break; | |||
6531 | ||||
6532 | ||||
6533 | case DW_AT_external: | |||
6534 | if (form_value.Unsigned()) | |||
6535 | { | |||
6536 | if (storage == clang::SC_None) | |||
6537 | storage = clang::SC_Extern; | |||
6538 | else | |||
6539 | storage = clang::SC_PrivateExtern; | |||
6540 | } | |||
6541 | break; | |||
6542 | ||||
6543 | case DW_AT_specification: | |||
6544 | specification_die_offset = form_value.Reference(dwarf_cu); | |||
6545 | break; | |||
6546 | ||||
6547 | case DW_AT_abstract_origin: | |||
6548 | abstract_origin_die_offset = form_value.Reference(dwarf_cu); | |||
6549 | break; | |||
6550 | ||||
6551 | case DW_AT_object_pointer: | |||
6552 | object_pointer_die_offset = form_value.Reference(dwarf_cu); | |||
6553 | break; | |||
6554 | ||||
6555 | case DW_AT_allocated: | |||
6556 | case DW_AT_associated: | |||
6557 | case DW_AT_address_class: | |||
6558 | case DW_AT_calling_convention: | |||
6559 | case DW_AT_data_location: | |||
6560 | case DW_AT_elemental: | |||
6561 | case DW_AT_entry_pc: | |||
6562 | case DW_AT_frame_base: | |||
6563 | case DW_AT_high_pc: | |||
6564 | case DW_AT_low_pc: | |||
6565 | case DW_AT_prototyped: | |||
6566 | case DW_AT_pure: | |||
6567 | case DW_AT_ranges: | |||
6568 | case DW_AT_recursive: | |||
6569 | case DW_AT_return_addr: | |||
6570 | case DW_AT_segment: | |||
6571 | case DW_AT_start_scope: | |||
6572 | case DW_AT_static_link: | |||
6573 | case DW_AT_trampoline: | |||
6574 | case DW_AT_visibility: | |||
6575 | case DW_AT_vtable_elem_location: | |||
6576 | case DW_AT_description: | |||
6577 | case DW_AT_sibling: | |||
6578 | break; | |||
6579 | } | |||
6580 | } | |||
6581 | } | |||
6582 | } | |||
6583 | ||||
6584 | std::string object_pointer_name; | |||
6585 | if (object_pointer_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
6586 | { | |||
6587 | // Get the name from the object pointer die | |||
6588 | StreamString s; | |||
6589 | if (DWARFDebugInfoEntry::GetName (this, dwarf_cu, object_pointer_die_offset, s)) | |||
6590 | { | |||
6591 | object_pointer_name.assign(s.GetData()); | |||
6592 | } | |||
6593 | } | |||
6594 | ||||
6595 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr); | |||
6596 | ||||
6597 | ClangASTType return_clang_type; | |||
6598 | Type *func_type = NULL__null; | |||
6599 | ||||
6600 | if (type_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
6601 | func_type = ResolveTypeUID(type_die_offset); | |||
6602 | ||||
6603 | if (func_type) | |||
6604 | return_clang_type = func_type->GetClangForwardType(); | |||
6605 | else | |||
6606 | return_clang_type = ast.GetBasicType(eBasicTypeVoid); | |||
6607 | ||||
6608 | ||||
6609 | std::vector<ClangASTType> function_param_types; | |||
6610 | std::vector<clang::ParmVarDecl*> function_param_decls; | |||
6611 | ||||
6612 | // Parse the function children for the parameters | |||
6613 | ||||
6614 | const DWARFDebugInfoEntry *decl_ctx_die = NULL__null; | |||
6615 | clang::DeclContext *containing_decl_ctx = GetClangDeclContextContainingDIE (dwarf_cu, die, &decl_ctx_die); | |||
6616 | const clang::Decl::Kind containing_decl_kind = containing_decl_ctx->getDeclKind(); | |||
6617 | ||||
6618 | const bool is_cxx_method = DeclKindIsCXXClass (containing_decl_kind); | |||
6619 | // Start off static. This will be set to false in ParseChildParameters(...) | |||
6620 | // if we find a "this" parameters as the first parameter | |||
6621 | if (is_cxx_method) | |||
6622 | is_static = true; | |||
6623 | ||||
6624 | if (die->HasChildren()) | |||
6625 | { | |||
6626 | bool skip_artificial = true; | |||
6627 | ParseChildParameters (sc, | |||
6628 | containing_decl_ctx, | |||
6629 | dwarf_cu, | |||
6630 | die, | |||
6631 | skip_artificial, | |||
6632 | is_static, | |||
6633 | is_variadic, | |||
6634 | type_list, | |||
6635 | function_param_types, | |||
6636 | function_param_decls, | |||
6637 | type_quals); | |||
6638 | } | |||
6639 | ||||
6640 | // clang_type will get the function prototype clang type after this call | |||
6641 | clang_type = ast.CreateFunctionType (return_clang_type, | |||
6642 | function_param_types.data(), | |||
6643 | function_param_types.size(), | |||
6644 | is_variadic, | |||
6645 | type_quals); | |||
6646 | ||||
6647 | bool ignore_containing_context = false; | |||
6648 | ||||
6649 | if (type_name_cstr) | |||
6650 | { | |||
6651 | bool type_handled = false; | |||
6652 | if (tag == DW_TAG_subprogram) | |||
6653 | { | |||
6654 | ObjCLanguageRuntime::MethodName objc_method (type_name_cstr, true); | |||
6655 | if (objc_method.IsValid(true)) | |||
6656 | { | |||
6657 | ClangASTType class_opaque_type; | |||
6658 | ConstString class_name(objc_method.GetClassName()); | |||
6659 | if (class_name) | |||
6660 | { | |||
6661 | TypeSP complete_objc_class_type_sp (FindCompleteObjCDefinitionTypeForDIE (NULL__null, class_name, false)); | |||
6662 | ||||
6663 | if (complete_objc_class_type_sp) | |||
6664 | { | |||
6665 | ClangASTType type_clang_forward_type = complete_objc_class_type_sp->GetClangForwardType(); | |||
6666 | if (type_clang_forward_type.IsObjCObjectOrInterfaceType ()) | |||
6667 | class_opaque_type = type_clang_forward_type; | |||
6668 | } | |||
6669 | } | |||
6670 | ||||
6671 | if (class_opaque_type) | |||
6672 | { | |||
6673 | // If accessibility isn't set to anything valid, assume public for | |||
6674 | // now... | |||
6675 | if (accessibility == eAccessNone) | |||
6676 | accessibility = eAccessPublic; | |||
6677 | ||||
6678 | clang::ObjCMethodDecl *objc_method_decl = class_opaque_type.AddMethodToObjCObjectType (type_name_cstr, | |||
6679 | clang_type, | |||
6680 | accessibility, | |||
6681 | is_artificial); | |||
6682 | type_handled = objc_method_decl != NULL__null; | |||
6683 | if (type_handled) | |||
6684 | { | |||
6685 | LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(objc_method_decl), die); | |||
6686 | GetClangASTContext().SetMetadataAsUserID (objc_method_decl, MakeUserID(die->GetOffset())); | |||
6687 | } | |||
6688 | else | |||
6689 | { | |||
6690 | GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: invalid Objective-C method 0x%4.4x (%s), please file a bug and attach the file at the start of this error message", | |||
6691 | die->GetOffset(), | |||
6692 | tag, | |||
6693 | DW_TAG_value_to_name(tag)); | |||
6694 | } | |||
6695 | } | |||
6696 | } | |||
6697 | else if (is_cxx_method) | |||
6698 | { | |||
6699 | // Look at the parent of this DIE and see if is is | |||
6700 | // a class or struct and see if this is actually a | |||
6701 | // C++ method | |||
6702 | Type *class_type = ResolveType (dwarf_cu, decl_ctx_die); | |||
6703 | if (class_type) | |||
6704 | { | |||
6705 | if (class_type->GetID() != MakeUserID(decl_ctx_die->GetOffset())) | |||
6706 | { | |||
6707 | // We uniqued the parent class of this function to another class | |||
6708 | // so we now need to associate all dies under "decl_ctx_die" to | |||
6709 | // DIEs in the DIE for "class_type"... | |||
6710 | SymbolFileDWARF *class_symfile = NULL__null; | |||
6711 | DWARFCompileUnitSP class_type_cu_sp; | |||
6712 | const DWARFDebugInfoEntry *class_type_die = NULL__null; | |||
6713 | ||||
6714 | SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile(); | |||
6715 | if (debug_map_symfile) | |||
6716 | { | |||
6717 | class_symfile = debug_map_symfile->GetSymbolFileByOSOIndex(SymbolFileDWARFDebugMap::GetOSOIndexFromUserID(class_type->GetID())); | |||
6718 | class_type_die = class_symfile->DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp); | |||
6719 | } | |||
6720 | else | |||
6721 | { | |||
6722 | class_symfile = this; | |||
6723 | class_type_die = DebugInfo()->GetDIEPtr(class_type->GetID(), &class_type_cu_sp); | |||
6724 | } | |||
6725 | if (class_type_die) | |||
6726 | { | |||
6727 | DWARFDIECollection failures; | |||
6728 | ||||
6729 | CopyUniqueClassMethodTypes (class_symfile, | |||
6730 | class_type, | |||
6731 | class_type_cu_sp.get(), | |||
6732 | class_type_die, | |||
6733 | dwarf_cu, | |||
6734 | decl_ctx_die, | |||
6735 | failures); | |||
6736 | ||||
6737 | // FIXME do something with these failures that's smarter than | |||
6738 | // just dropping them on the ground. Unfortunately classes don't | |||
6739 | // like having stuff added to them after their definitions are | |||
6740 | // complete... | |||
6741 | ||||
6742 | type_ptr = m_die_to_type[die]; | |||
6743 | if (type_ptr && type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||
6744 | { | |||
6745 | type_sp = type_ptr->shared_from_this(); | |||
6746 | break; | |||
6747 | } | |||
6748 | } | |||
6749 | } | |||
6750 | ||||
6751 | if (specification_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
6752 | { | |||
6753 | // We have a specification which we are going to base our function | |||
6754 | // prototype off of, so we need this type to be completed so that the | |||
6755 | // m_die_to_decl_ctx for the method in the specification has a valid | |||
6756 | // clang decl context. | |||
6757 | class_type->GetClangForwardType(); | |||
6758 | // If we have a specification, then the function type should have been | |||
6759 | // made with the specification and not with this die. | |||
6760 | DWARFCompileUnitSP spec_cu_sp; | |||
6761 | const DWARFDebugInfoEntry* spec_die = DebugInfo()->GetDIEPtr(specification_die_offset, &spec_cu_sp); | |||
6762 | clang::DeclContext *spec_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, spec_die); | |||
6763 | if (spec_clang_decl_ctx) | |||
6764 | { | |||
6765 | LinkDeclContextToDIE(spec_clang_decl_ctx, die); | |||
6766 | } | |||
6767 | else | |||
6768 | { | |||
6769 | GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64"l" "x" ": DW_AT_specification(0x%8.8x) has no decl\n", | |||
6770 | MakeUserID(die->GetOffset()), | |||
6771 | specification_die_offset); | |||
6772 | } | |||
6773 | type_handled = true; | |||
6774 | } | |||
6775 | else if (abstract_origin_die_offset != DW_INVALID_OFFSET(~(dw_offset_t)0)) | |||
6776 | { | |||
6777 | // We have a specification which we are going to base our function | |||
6778 | // prototype off of, so we need this type to be completed so that the | |||
6779 | // m_die_to_decl_ctx for the method in the abstract origin has a valid | |||
6780 | // clang decl context. | |||
6781 | class_type->GetClangForwardType(); | |||
6782 | ||||
6783 | DWARFCompileUnitSP abs_cu_sp; | |||
6784 | const DWARFDebugInfoEntry* abs_die = DebugInfo()->GetDIEPtr(abstract_origin_die_offset, &abs_cu_sp); | |||
6785 | clang::DeclContext *abs_clang_decl_ctx = GetClangDeclContextForDIE (sc, dwarf_cu, abs_die); | |||
6786 | if (abs_clang_decl_ctx) | |||
6787 | { | |||
6788 | LinkDeclContextToDIE (abs_clang_decl_ctx, die); | |||
6789 | } | |||
6790 | else | |||
6791 | { | |||
6792 | GetObjectFile()->GetModule()->ReportWarning ("0x%8.8" PRIx64"l" "x" ": DW_AT_abstract_origin(0x%8.8x) has no decl\n", | |||
6793 | MakeUserID(die->GetOffset()), | |||
6794 | abstract_origin_die_offset); | |||
6795 | } | |||
6796 | type_handled = true; | |||
6797 | } | |||
6798 | else | |||
6799 | { | |||
6800 | ClangASTType class_opaque_type = class_type->GetClangForwardType(); | |||
6801 | if (class_opaque_type.IsCXXClassType ()) | |||
6802 | { | |||
6803 | if (class_opaque_type.IsBeingDefined ()) | |||
6804 | { | |||
6805 | // Neither GCC 4.2 nor clang++ currently set a valid accessibility | |||
6806 | // in the DWARF for C++ methods... Default to public for now... | |||
6807 | if (accessibility == eAccessNone) | |||
6808 | accessibility = eAccessPublic; | |||
6809 | ||||
6810 | if (!is_static && !die->HasChildren()) | |||
6811 | { | |||
6812 | // We have a C++ member function with no children (this pointer!) | |||
6813 | // and clang will get mad if we try and make a function that isn't | |||
6814 | // well formed in the DWARF, so we will just skip it... | |||
6815 | type_handled = true; | |||
6816 | } | |||
6817 | else | |||
6818 | { | |||
6819 | clang::CXXMethodDecl *cxx_method_decl; | |||
6820 | // REMOVE THE CRASH DESCRIPTION BELOW | |||
6821 | Host::SetCrashDescriptionWithFormat ("SymbolFileDWARF::ParseType() is adding a method %s to class %s in DIE 0x%8.8" PRIx64"l" "x" " from %s", | |||
6822 | type_name_cstr, | |||
6823 | class_type->GetName().GetCString(), | |||
6824 | MakeUserID(die->GetOffset()), | |||
6825 | m_obj_file->GetFileSpec().GetPath().c_str()); | |||
6826 | ||||
6827 | const bool is_attr_used = false; | |||
6828 | ||||
6829 | cxx_method_decl = class_opaque_type.AddMethodToCXXRecordType (type_name_cstr, | |||
6830 | clang_type, | |||
6831 | accessibility, | |||
6832 | is_virtual, | |||
6833 | is_static, | |||
6834 | is_inline, | |||
6835 | is_explicit, | |||
6836 | is_attr_used, | |||
6837 | is_artificial); | |||
6838 | ||||
6839 | type_handled = cxx_method_decl != NULL__null; | |||
6840 | ||||
6841 | if (type_handled) | |||
6842 | { | |||
6843 | LinkDeclContextToDIE(ClangASTContext::GetAsDeclContext(cxx_method_decl), die); | |||
6844 | ||||
6845 | Host::SetCrashDescription (NULL__null); | |||
6846 | ||||
6847 | ||||
6848 | ClangASTMetadata metadata; | |||
6849 | metadata.SetUserID(MakeUserID(die->GetOffset())); | |||
6850 | ||||
6851 | if (!object_pointer_name.empty()) | |||
6852 | { | |||
6853 | metadata.SetObjectPtrName(object_pointer_name.c_str()); | |||
6854 | if (log) | |||
6855 | log->Printf ("Setting object pointer name: %s on method object %p.\n", | |||
6856 | object_pointer_name.c_str(), | |||
6857 | static_cast<void*>(cxx_method_decl)); | |||
6858 | } | |||
6859 | GetClangASTContext().SetMetadata (cxx_method_decl, metadata); | |||
6860 | } | |||
6861 | else | |||
6862 | { | |||
6863 | ignore_containing_context = true; | |||
6864 | } | |||
6865 | } | |||
6866 | } | |||
6867 | else | |||
6868 | { | |||
6869 | // We were asked to parse the type for a method in a class, yet the | |||
6870 | // class hasn't been asked to complete itself through the | |||
6871 | // clang::ExternalASTSource protocol, so we need to just have the | |||
6872 | // class complete itself and do things the right way, then our | |||
6873 | // DIE should then have an entry in the m_die_to_type map. First | |||
6874 | // we need to modify the m_die_to_type so it doesn't think we are | |||
6875 | // trying to parse this DIE anymore... | |||
6876 | m_die_to_type[die] = NULL__null; | |||
6877 | ||||
6878 | // Now we get the full type to force our class type to complete itself | |||
6879 | // using the clang::ExternalASTSource protocol which will parse all | |||
6880 | // base classes and all methods (including the method for this DIE). | |||
6881 | class_type->GetClangFullType(); | |||
6882 | ||||
6883 | // The type for this DIE should have been filled in the function call above | |||
6884 | type_ptr = m_die_to_type[die]; | |||
6885 | if (type_ptr && type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||
6886 | { | |||
6887 | type_sp = type_ptr->shared_from_this(); | |||
6888 | break; | |||
6889 | } | |||
6890 | ||||
6891 | // FIXME This is fixing some even uglier behavior but we really need to | |||
6892 | // uniq the methods of each class as well as the class itself. | |||
6893 | // <rdar://problem/11240464> | |||
6894 | type_handled = true; | |||
6895 | } | |||
6896 | } | |||
6897 | } | |||
6898 | } | |||
6899 | } | |||
6900 | } | |||
6901 | ||||
6902 | if (!type_handled) | |||
6903 | { | |||
6904 | // We just have a function that isn't part of a class | |||
6905 | clang::FunctionDecl *function_decl = ast.CreateFunctionDeclaration (ignore_containing_context ? GetClangASTContext().GetTranslationUnitDecl() : containing_decl_ctx, | |||
6906 | type_name_cstr, | |||
6907 | clang_type, | |||
6908 | storage, | |||
6909 | is_inline); | |||
6910 | ||||
6911 | // if (template_param_infos.GetSize() > 0) | |||
6912 | // { | |||
6913 | // clang::FunctionTemplateDecl *func_template_decl = ast.CreateFunctionTemplateDecl (containing_decl_ctx, | |||
6914 | // function_decl, | |||
6915 | // type_name_cstr, | |||
6916 | // template_param_infos); | |||
6917 | // | |||
6918 | // ast.CreateFunctionTemplateSpecializationInfo (function_decl, | |||
6919 | // func_template_decl, | |||
6920 | // template_param_infos); | |||
6921 | // } | |||
6922 | // Add the decl to our DIE to decl context map | |||
6923 | assert (function_decl)((function_decl) ? static_cast<void> (0) : __assert_fail ("function_decl", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 6923, __PRETTY_FUNCTION__)); | |||
6924 | LinkDeclContextToDIE(function_decl, die); | |||
6925 | if (!function_param_decls.empty()) | |||
6926 | ast.SetFunctionParameters (function_decl, | |||
6927 | &function_param_decls.front(), | |||
6928 | function_param_decls.size()); | |||
6929 | ||||
6930 | ClangASTMetadata metadata; | |||
6931 | metadata.SetUserID(MakeUserID(die->GetOffset())); | |||
6932 | ||||
6933 | if (!object_pointer_name.empty()) | |||
6934 | { | |||
6935 | metadata.SetObjectPtrName(object_pointer_name.c_str()); | |||
6936 | if (log) | |||
6937 | log->Printf ("Setting object pointer name: %s on function object %p.", | |||
6938 | object_pointer_name.c_str(), | |||
6939 | static_cast<void*>(function_decl)); | |||
6940 | } | |||
6941 | GetClangASTContext().SetMetadata (function_decl, metadata); | |||
6942 | } | |||
6943 | } | |||
6944 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||
6945 | this, | |||
6946 | type_name_const_str, | |||
6947 | 0, | |||
6948 | NULL__null, | |||
6949 | LLDB_INVALID_UID(18446744073709551615UL), | |||
6950 | Type::eEncodingIsUID, | |||
6951 | &decl, | |||
6952 | clang_type, | |||
6953 | Type::eResolveStateFull)); | |||
6954 | assert(type_sp.get())((type_sp.get()) ? static_cast<void> (0) : __assert_fail ("type_sp.get()", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 6954, __PRETTY_FUNCTION__)); | |||
6955 | } | |||
6956 | break; | |||
6957 | ||||
6958 | case DW_TAG_array_type: | |||
6959 | { | |||
6960 | // Set a bit that lets us know that we are currently parsing this | |||
6961 | m_die_to_type[die] = DIE_IS_BEING_PARSED((lldb_private::Type*)1); | |||
6962 | ||||
6963 | lldb::user_id_t type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
6964 | int64_t first_index = 0; | |||
6965 | uint32_t byte_stride = 0; | |||
6966 | uint32_t bit_stride = 0; | |||
6967 | bool is_vector = false; | |||
6968 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||
6969 | ||||
6970 | if (num_attributes > 0) | |||
6971 | { | |||
6972 | uint32_t i; | |||
6973 | for (i=0; i<num_attributes; ++i) | |||
6974 | { | |||
6975 | attr = attributes.AttributeAtIndex(i); | |||
6976 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
6977 | { | |||
6978 | switch (attr) | |||
6979 | { | |||
6980 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
6981 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
6982 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
6983 | case DW_AT_name: | |||
6984 | type_name_cstr = form_value.AsCString(&get_debug_str_data()); | |||
6985 | type_name_const_str.SetCString(type_name_cstr); | |||
6986 | break; | |||
6987 | ||||
6988 | case DW_AT_type: type_die_offset = form_value.Reference(dwarf_cu); break; | |||
6989 | case DW_AT_byte_size: break; // byte_size = form_value.Unsigned(); break; | |||
6990 | case DW_AT_byte_stride: byte_stride = form_value.Unsigned(); break; | |||
6991 | case DW_AT_bit_stride: bit_stride = form_value.Unsigned(); break; | |||
6992 | case DW_AT_GNU_vector: is_vector = form_value.Boolean(); break; | |||
6993 | case DW_AT_accessibility: break; // accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||
6994 | case DW_AT_declaration: break; // is_forward_declaration = form_value.Boolean(); break; | |||
6995 | case DW_AT_allocated: | |||
6996 | case DW_AT_associated: | |||
6997 | case DW_AT_data_location: | |||
6998 | case DW_AT_description: | |||
6999 | case DW_AT_ordering: | |||
7000 | case DW_AT_start_scope: | |||
7001 | case DW_AT_visibility: | |||
7002 | case DW_AT_specification: | |||
7003 | case DW_AT_abstract_origin: | |||
7004 | case DW_AT_sibling: | |||
7005 | break; | |||
7006 | } | |||
7007 | } | |||
7008 | } | |||
7009 | ||||
7010 | DEBUG_PRINTF ("0x%8.8" PRIx64 ": %s (\"%s\")\n", MakeUserID(die->GetOffset()), DW_TAG_value_to_name(tag), type_name_cstr); | |||
7011 | ||||
7012 | Type *element_type = ResolveTypeUID(type_die_offset); | |||
7013 | ||||
7014 | if (element_type) | |||
7015 | { | |||
7016 | std::vector<uint64_t> element_orders; | |||
7017 | ParseChildArrayInfo(sc, dwarf_cu, die, first_index, element_orders, byte_stride, bit_stride); | |||
7018 | if (byte_stride == 0 && bit_stride == 0) | |||
7019 | byte_stride = element_type->GetByteSize(); | |||
7020 | ClangASTType array_element_type = element_type->GetClangForwardType(); | |||
7021 | uint64_t array_element_bit_stride = byte_stride * 8 + bit_stride; | |||
7022 | uint64_t num_elements = 0; | |||
7023 | std::vector<uint64_t>::const_reverse_iterator pos; | |||
7024 | std::vector<uint64_t>::const_reverse_iterator end = element_orders.rend(); | |||
7025 | for (pos = element_orders.rbegin(); pos != end; ++pos) | |||
7026 | { | |||
7027 | num_elements = *pos; | |||
7028 | clang_type = ast.CreateArrayType (array_element_type, | |||
7029 | num_elements, | |||
7030 | is_vector); | |||
7031 | array_element_type = clang_type; | |||
7032 | array_element_bit_stride = num_elements ? array_element_bit_stride * num_elements : array_element_bit_stride; | |||
7033 | } | |||
7034 | ConstString empty_name; | |||
7035 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||
7036 | this, | |||
7037 | empty_name, | |||
7038 | array_element_bit_stride / 8, | |||
7039 | NULL__null, | |||
7040 | type_die_offset, | |||
7041 | Type::eEncodingIsUID, | |||
7042 | &decl, | |||
7043 | clang_type, | |||
7044 | Type::eResolveStateFull)); | |||
7045 | type_sp->SetEncodingType (element_type); | |||
7046 | } | |||
7047 | } | |||
7048 | } | |||
7049 | break; | |||
7050 | ||||
7051 | case DW_TAG_ptr_to_member_type: | |||
7052 | { | |||
7053 | dw_offset_t type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
7054 | dw_offset_t containing_type_die_offset = DW_INVALID_OFFSET(~(dw_offset_t)0); | |||
7055 | ||||
7056 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||
7057 | ||||
7058 | if (num_attributes > 0) { | |||
7059 | uint32_t i; | |||
7060 | for (i=0; i<num_attributes; ++i) | |||
7061 | { | |||
7062 | attr = attributes.AttributeAtIndex(i); | |||
7063 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
7064 | { | |||
7065 | switch (attr) | |||
7066 | { | |||
7067 | case DW_AT_type: | |||
7068 | type_die_offset = form_value.Reference(dwarf_cu); break; | |||
7069 | case DW_AT_containing_type: | |||
7070 | containing_type_die_offset = form_value.Reference(dwarf_cu); break; | |||
7071 | } | |||
7072 | } | |||
7073 | } | |||
7074 | ||||
7075 | Type *pointee_type = ResolveTypeUID(type_die_offset); | |||
7076 | Type *class_type = ResolveTypeUID(containing_type_die_offset); | |||
7077 | ||||
7078 | ClangASTType pointee_clang_type = pointee_type->GetClangForwardType(); | |||
7079 | ClangASTType class_clang_type = class_type->GetClangLayoutType(); | |||
7080 | ||||
7081 | clang_type = pointee_clang_type.CreateMemberPointerType(class_clang_type); | |||
7082 | ||||
7083 | byte_size = clang_type.GetByteSize(); | |||
7084 | ||||
7085 | type_sp.reset( new Type (MakeUserID(die->GetOffset()), | |||
7086 | this, | |||
7087 | type_name_const_str, | |||
7088 | byte_size, | |||
7089 | NULL__null, | |||
7090 | LLDB_INVALID_UID(18446744073709551615UL), | |||
7091 | Type::eEncodingIsUID, | |||
7092 | NULL__null, | |||
7093 | clang_type, | |||
7094 | Type::eResolveStateForward)); | |||
7095 | } | |||
7096 | ||||
7097 | break; | |||
7098 | } | |||
7099 | default: | |||
7100 | GetObjectFile()->GetModule()->ReportError ("{0x%8.8x}: unhandled type tag 0x%4.4x (%s), please file a bug and attach the file at the start of this error message", | |||
7101 | die->GetOffset(), | |||
7102 | tag, | |||
7103 | DW_TAG_value_to_name(tag)); | |||
7104 | break; | |||
7105 | } | |||
7106 | ||||
7107 | if (type_sp.get()) | |||
7108 | { | |||
7109 | const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die); | |||
7110 | dw_tag_t sc_parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0; | |||
7111 | ||||
7112 | SymbolContextScope * symbol_context_scope = NULL__null; | |||
7113 | if (sc_parent_tag == DW_TAG_compile_unit) | |||
7114 | { | |||
7115 | symbol_context_scope = sc.comp_unit; | |||
7116 | } | |||
7117 | else if (sc.function != NULL__null) | |||
7118 | { | |||
7119 | symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset())); | |||
| ||||
7120 | if (symbol_context_scope == NULL__null) | |||
7121 | symbol_context_scope = sc.function; | |||
7122 | } | |||
7123 | ||||
7124 | if (symbol_context_scope != NULL__null) | |||
7125 | { | |||
7126 | type_sp->SetSymbolContextScope(symbol_context_scope); | |||
7127 | } | |||
7128 | ||||
7129 | // We are ready to put this type into the uniqued list up at the module level | |||
7130 | type_list->Insert (type_sp); | |||
7131 | ||||
7132 | m_die_to_type[die] = type_sp.get(); | |||
7133 | } | |||
7134 | } | |||
7135 | else if (type_ptr != DIE_IS_BEING_PARSED((lldb_private::Type*)1)) | |||
7136 | { | |||
7137 | type_sp = type_ptr->shared_from_this(); | |||
7138 | } | |||
7139 | } | |||
7140 | return type_sp; | |||
7141 | } | |||
7142 | ||||
7143 | size_t | |||
7144 | SymbolFileDWARF::ParseTypes | |||
7145 | ( | |||
7146 | const SymbolContext& sc, | |||
7147 | DWARFCompileUnit* dwarf_cu, | |||
7148 | const DWARFDebugInfoEntry *die, | |||
7149 | bool parse_siblings, | |||
7150 | bool parse_children | |||
7151 | ) | |||
7152 | { | |||
7153 | size_t types_added = 0; | |||
7154 | while (die != NULL__null) | |||
7155 | { | |||
7156 | bool type_is_new = false; | |||
7157 | if (ParseType(sc, dwarf_cu, die, &type_is_new).get()) | |||
7158 | { | |||
7159 | if (type_is_new) | |||
7160 | ++types_added; | |||
7161 | } | |||
7162 | ||||
7163 | if (parse_children && die->HasChildren()) | |||
7164 | { | |||
7165 | if (die->Tag() == DW_TAG_subprogram) | |||
7166 | { | |||
7167 | SymbolContext child_sc(sc); | |||
7168 | child_sc.function = sc.comp_unit->FindFunctionByUID(MakeUserID(die->GetOffset())).get(); | |||
7169 | types_added += ParseTypes(child_sc, dwarf_cu, die->GetFirstChild(), true, true); | |||
7170 | } | |||
7171 | else | |||
7172 | types_added += ParseTypes(sc, dwarf_cu, die->GetFirstChild(), true, true); | |||
7173 | } | |||
7174 | ||||
7175 | if (parse_siblings) | |||
7176 | die = die->GetSibling(); | |||
7177 | else | |||
7178 | die = NULL__null; | |||
7179 | } | |||
7180 | return types_added; | |||
7181 | } | |||
7182 | ||||
7183 | ||||
7184 | size_t | |||
7185 | SymbolFileDWARF::ParseFunctionBlocks (const SymbolContext &sc) | |||
7186 | { | |||
7187 | assert(sc.comp_unit && sc.function)((sc.comp_unit && sc.function) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit && sc.function", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 7187, __PRETTY_FUNCTION__)); | |||
7188 | size_t functions_added = 0; | |||
7189 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||
7190 | if (dwarf_cu) | |||
7191 | { | |||
7192 | dw_offset_t function_die_offset = sc.function->GetID(); | |||
7193 | const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(function_die_offset); | |||
7194 | if (function_die) | |||
7195 | { | |||
7196 | ParseFunctionBlocks(sc, &sc.function->GetBlock (false), dwarf_cu, function_die, LLDB_INVALID_ADDRESS(18446744073709551615UL), 0); | |||
7197 | } | |||
7198 | } | |||
7199 | ||||
7200 | return functions_added; | |||
7201 | } | |||
7202 | ||||
7203 | ||||
7204 | size_t | |||
7205 | SymbolFileDWARF::ParseTypes (const SymbolContext &sc) | |||
7206 | { | |||
7207 | // At least a compile unit must be valid | |||
7208 | assert(sc.comp_unit)((sc.comp_unit) ? static_cast<void> (0) : __assert_fail ("sc.comp_unit", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 7208, __PRETTY_FUNCTION__)); | |||
7209 | size_t types_added = 0; | |||
7210 | DWARFCompileUnit* dwarf_cu = GetDWARFCompileUnit(sc.comp_unit); | |||
7211 | if (dwarf_cu) | |||
7212 | { | |||
7213 | if (sc.function) | |||
7214 | { | |||
7215 | dw_offset_t function_die_offset = sc.function->GetID(); | |||
7216 | const DWARFDebugInfoEntry *func_die = dwarf_cu->GetDIEPtr(function_die_offset); | |||
7217 | if (func_die && func_die->HasChildren()) | |||
7218 | { | |||
7219 | types_added = ParseTypes(sc, dwarf_cu, func_die->GetFirstChild(), true, true); | |||
7220 | } | |||
7221 | } | |||
7222 | else | |||
7223 | { | |||
7224 | const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->DIE(); | |||
7225 | if (dwarf_cu_die && dwarf_cu_die->HasChildren()) | |||
7226 | { | |||
7227 | types_added = ParseTypes(sc, dwarf_cu, dwarf_cu_die->GetFirstChild(), true, true); | |||
7228 | } | |||
7229 | } | |||
7230 | } | |||
7231 | ||||
7232 | return types_added; | |||
7233 | } | |||
7234 | ||||
7235 | size_t | |||
7236 | SymbolFileDWARF::ParseVariablesForContext (const SymbolContext& sc) | |||
7237 | { | |||
7238 | if (sc.comp_unit != NULL__null) | |||
7239 | { | |||
7240 | DWARFDebugInfo* info = DebugInfo(); | |||
7241 | if (info == NULL__null) | |||
7242 | return 0; | |||
7243 | ||||
7244 | if (sc.function) | |||
7245 | { | |||
7246 | DWARFCompileUnit* dwarf_cu = info->GetCompileUnitContainingDIE(sc.function->GetID()).get(); | |||
7247 | ||||
7248 | if (dwarf_cu == NULL__null) | |||
7249 | return 0; | |||
7250 | ||||
7251 | const DWARFDebugInfoEntry *function_die = dwarf_cu->GetDIEPtr(sc.function->GetID()); | |||
7252 | ||||
7253 | dw_addr_t func_lo_pc = function_die->GetAttributeValueAsUnsigned (this, dwarf_cu, DW_AT_low_pc, LLDB_INVALID_ADDRESS(18446744073709551615UL)); | |||
7254 | if (func_lo_pc != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||
7255 | { | |||
7256 | const size_t num_variables = ParseVariables(sc, dwarf_cu, func_lo_pc, function_die->GetFirstChild(), true, true); | |||
7257 | ||||
7258 | // Let all blocks know they have parse all their variables | |||
7259 | sc.function->GetBlock (false).SetDidParseVariables (true, true); | |||
7260 | return num_variables; | |||
7261 | } | |||
7262 | } | |||
7263 | else if (sc.comp_unit) | |||
7264 | { | |||
7265 | DWARFCompileUnit* dwarf_cu = info->GetCompileUnit(sc.comp_unit->GetID()).get(); | |||
7266 | ||||
7267 | if (dwarf_cu == NULL__null) | |||
7268 | return 0; | |||
7269 | ||||
7270 | uint32_t vars_added = 0; | |||
7271 | VariableListSP variables (sc.comp_unit->GetVariableList(false)); | |||
7272 | ||||
7273 | if (variables.get() == NULL__null) | |||
7274 | { | |||
7275 | variables.reset(new VariableList()); | |||
7276 | sc.comp_unit->SetVariableList(variables); | |||
7277 | ||||
7278 | DWARFCompileUnit* match_dwarf_cu = NULL__null; | |||
7279 | const DWARFDebugInfoEntry* die = NULL__null; | |||
7280 | DIEArray die_offsets; | |||
7281 | if (m_using_apple_tables) | |||
7282 | { | |||
7283 | if (m_apple_names_ap.get()) | |||
7284 | { | |||
7285 | DWARFMappedHash::DIEInfoArray hash_data_array; | |||
7286 | if (m_apple_names_ap->AppendAllDIEsInRange (dwarf_cu->GetOffset(), | |||
7287 | dwarf_cu->GetNextCompileUnitOffset(), | |||
7288 | hash_data_array)) | |||
7289 | { | |||
7290 | DWARFMappedHash::ExtractDIEArray (hash_data_array, die_offsets); | |||
7291 | } | |||
7292 | } | |||
7293 | } | |||
7294 | else | |||
7295 | { | |||
7296 | // Index if we already haven't to make sure the compile units | |||
7297 | // get indexed and make their global DIE index list | |||
7298 | if (!m_indexed) | |||
7299 | Index (); | |||
7300 | ||||
7301 | m_global_index.FindAllEntriesForCompileUnit (dwarf_cu->GetOffset(), | |||
7302 | dwarf_cu->GetNextCompileUnitOffset(), | |||
7303 | die_offsets); | |||
7304 | } | |||
7305 | ||||
7306 | const size_t num_matches = die_offsets.size(); | |||
7307 | if (num_matches) | |||
7308 | { | |||
7309 | DWARFDebugInfo* debug_info = DebugInfo(); | |||
7310 | for (size_t i=0; i<num_matches; ++i) | |||
7311 | { | |||
7312 | const dw_offset_t die_offset = die_offsets[i]; | |||
7313 | die = debug_info->GetDIEPtrWithCompileUnitHint (die_offset, &match_dwarf_cu); | |||
7314 | if (die) | |||
7315 | { | |||
7316 | VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, LLDB_INVALID_ADDRESS(18446744073709551615UL))); | |||
7317 | if (var_sp) | |||
7318 | { | |||
7319 | variables->AddVariableIfUnique (var_sp); | |||
7320 | ++vars_added; | |||
7321 | } | |||
7322 | } | |||
7323 | else | |||
7324 | { | |||
7325 | if (m_using_apple_tables) | |||
7326 | { | |||
7327 | GetObjectFile()->GetModule()->ReportErrorIfModifyDetected ("the DWARF debug information has been modified (.apple_names accelerator table had bad die 0x%8.8x)\n", die_offset); | |||
7328 | } | |||
7329 | } | |||
7330 | ||||
7331 | } | |||
7332 | } | |||
7333 | } | |||
7334 | return vars_added; | |||
7335 | } | |||
7336 | } | |||
7337 | return 0; | |||
7338 | } | |||
7339 | ||||
7340 | ||||
7341 | VariableSP | |||
7342 | SymbolFileDWARF::ParseVariableDIE | |||
7343 | ( | |||
7344 | const SymbolContext& sc, | |||
7345 | DWARFCompileUnit* dwarf_cu, | |||
7346 | const DWARFDebugInfoEntry *die, | |||
7347 | const lldb::addr_t func_low_pc | |||
7348 | ) | |||
7349 | { | |||
7350 | ||||
7351 | VariableSP var_sp (m_die_to_variable_sp[die]); | |||
7352 | if (var_sp) | |||
7353 | return var_sp; // Already been parsed! | |||
7354 | ||||
7355 | const dw_tag_t tag = die->Tag(); | |||
7356 | ModuleSP module = GetObjectFile()->GetModule(); | |||
7357 | ||||
7358 | if ((tag == DW_TAG_variable) || | |||
7359 | (tag == DW_TAG_constant) || | |||
7360 | (tag == DW_TAG_formal_parameter && sc.function)) | |||
7361 | { | |||
7362 | DWARFDebugInfoEntry::Attributes attributes; | |||
7363 | const size_t num_attributes = die->GetAttributes(this, dwarf_cu, NULL__null, attributes); | |||
7364 | if (num_attributes > 0) | |||
7365 | { | |||
7366 | const char *name = NULL__null; | |||
7367 | const char *mangled = NULL__null; | |||
7368 | Declaration decl; | |||
7369 | uint32_t i; | |||
7370 | lldb::user_id_t type_uid = LLDB_INVALID_UID(18446744073709551615UL); | |||
7371 | DWARFExpression location; | |||
7372 | bool is_external = false; | |||
7373 | bool is_artificial = false; | |||
7374 | bool location_is_const_value_data = false; | |||
7375 | bool has_explicit_location = false; | |||
7376 | DWARFFormValue const_value; | |||
7377 | //AccessType accessibility = eAccessNone; | |||
7378 | ||||
7379 | for (i=0; i<num_attributes; ++i) | |||
7380 | { | |||
7381 | dw_attr_t attr = attributes.AttributeAtIndex(i); | |||
7382 | DWARFFormValue form_value; | |||
7383 | if (attributes.ExtractFormValueAtIndex(this, i, form_value)) | |||
7384 | { | |||
7385 | switch (attr) | |||
7386 | { | |||
7387 | case DW_AT_decl_file: decl.SetFile(sc.comp_unit->GetSupportFiles().GetFileSpecAtIndex(form_value.Unsigned())); break; | |||
7388 | case DW_AT_decl_line: decl.SetLine(form_value.Unsigned()); break; | |||
7389 | case DW_AT_decl_column: decl.SetColumn(form_value.Unsigned()); break; | |||
7390 | case DW_AT_name: name = form_value.AsCString(&get_debug_str_data()); break; | |||
7391 | case DW_AT_linkage_name: | |||
7392 | case DW_AT_MIPS_linkage_name: mangled = form_value.AsCString(&get_debug_str_data()); break; | |||
7393 | case DW_AT_type: type_uid = form_value.Reference(dwarf_cu); break; | |||
7394 | case DW_AT_external: is_external = form_value.Boolean(); break; | |||
7395 | case DW_AT_const_value: | |||
7396 | // If we have already found a DW_AT_location attribute, ignore this attribute. | |||
7397 | if (!has_explicit_location) | |||
7398 | { | |||
7399 | location_is_const_value_data = true; | |||
7400 | // The constant value will be either a block, a data value or a string. | |||
7401 | const DWARFDataExtractor& debug_info_data = get_debug_info_data(); | |||
7402 | if (DWARFFormValue::IsBlockForm(form_value.Form())) | |||
7403 | { | |||
7404 | // Retrieve the value as a block expression. | |||
7405 | uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart(); | |||
7406 | uint32_t block_length = form_value.Unsigned(); | |||
7407 | location.CopyOpcodeData(module, debug_info_data, block_offset, block_length); | |||
7408 | } | |||
7409 | else if (DWARFFormValue::IsDataForm(form_value.Form())) | |||
7410 | { | |||
7411 | // Retrieve the value as a data expression. | |||
7412 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||
7413 | uint32_t data_offset = attributes.DIEOffsetAtIndex(i); | |||
7414 | uint32_t data_length = fixed_form_sizes[form_value.Form()]; | |||
7415 | if (data_length == 0) | |||
7416 | { | |||
7417 | const uint8_t *data_pointer = form_value.BlockData(); | |||
7418 | if (data_pointer) | |||
7419 | { | |||
7420 | data_length = form_value.Unsigned(); | |||
7421 | } | |||
7422 | else if (DWARFFormValue::IsDataForm(form_value.Form())) | |||
7423 | { | |||
7424 | // we need to get the byte size of the type later after we create the variable | |||
7425 | const_value = form_value; | |||
7426 | } | |||
7427 | } | |||
7428 | else | |||
7429 | location.CopyOpcodeData(module, debug_info_data, data_offset, data_length); | |||
7430 | } | |||
7431 | else | |||
7432 | { | |||
7433 | // Retrieve the value as a string expression. | |||
7434 | if (form_value.Form() == DW_FORM_strp) | |||
7435 | { | |||
7436 | const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (dwarf_cu->GetAddressByteSize(), dwarf_cu->IsDWARF64()); | |||
7437 | uint32_t data_offset = attributes.DIEOffsetAtIndex(i); | |||
7438 | uint32_t data_length = fixed_form_sizes[form_value.Form()]; | |||
7439 | location.CopyOpcodeData(module, debug_info_data, data_offset, data_length); | |||
7440 | } | |||
7441 | else | |||
7442 | { | |||
7443 | const char *str = form_value.AsCString(&debug_info_data); | |||
7444 | uint32_t string_offset = str - (const char *)debug_info_data.GetDataStart(); | |||
7445 | uint32_t string_length = strlen(str) + 1; | |||
7446 | location.CopyOpcodeData(module, debug_info_data, string_offset, string_length); | |||
7447 | } | |||
7448 | } | |||
7449 | } | |||
7450 | break; | |||
7451 | case DW_AT_location: | |||
7452 | { | |||
7453 | location_is_const_value_data = false; | |||
7454 | has_explicit_location = true; | |||
7455 | if (form_value.BlockData()) | |||
7456 | { | |||
7457 | const DWARFDataExtractor& debug_info_data = get_debug_info_data(); | |||
7458 | ||||
7459 | uint32_t block_offset = form_value.BlockData() - debug_info_data.GetDataStart(); | |||
7460 | uint32_t block_length = form_value.Unsigned(); | |||
7461 | location.CopyOpcodeData(module, get_debug_info_data(), block_offset, block_length); | |||
7462 | } | |||
7463 | else | |||
7464 | { | |||
7465 | const DWARFDataExtractor& debug_loc_data = get_debug_loc_data(); | |||
7466 | const dw_offset_t debug_loc_offset = form_value.Unsigned(); | |||
7467 | ||||
7468 | size_t loc_list_length = DWARFLocationList::Size(debug_loc_data, debug_loc_offset); | |||
7469 | if (loc_list_length > 0) | |||
7470 | { | |||
7471 | location.CopyOpcodeData(module, debug_loc_data, debug_loc_offset, loc_list_length); | |||
7472 | assert (func_low_pc != LLDB_INVALID_ADDRESS)((func_low_pc != (18446744073709551615UL)) ? static_cast<void > (0) : __assert_fail ("func_low_pc != (18446744073709551615UL)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 7472, __PRETTY_FUNCTION__)); | |||
7473 | location.SetLocationListSlide (func_low_pc - dwarf_cu->GetBaseAddress()); | |||
7474 | } | |||
7475 | } | |||
7476 | } | |||
7477 | break; | |||
7478 | ||||
7479 | case DW_AT_artificial: is_artificial = form_value.Boolean(); break; | |||
7480 | case DW_AT_accessibility: break; //accessibility = DW_ACCESS_to_AccessType(form_value.Unsigned()); break; | |||
7481 | case DW_AT_declaration: | |||
7482 | case DW_AT_description: | |||
7483 | case DW_AT_endianity: | |||
7484 | case DW_AT_segment: | |||
7485 | case DW_AT_start_scope: | |||
7486 | case DW_AT_visibility: | |||
7487 | default: | |||
7488 | case DW_AT_abstract_origin: | |||
7489 | case DW_AT_sibling: | |||
7490 | case DW_AT_specification: | |||
7491 | break; | |||
7492 | } | |||
7493 | } | |||
7494 | } | |||
7495 | ||||
7496 | ValueType scope = eValueTypeInvalid; | |||
7497 | ||||
7498 | const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(die); | |||
7499 | dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0; | |||
7500 | SymbolContextScope * symbol_context_scope = NULL__null; | |||
7501 | ||||
7502 | // DWARF doesn't specify if a DW_TAG_variable is a local, global | |||
7503 | // or static variable, so we have to do a little digging by | |||
7504 | // looking at the location of a variable to see if it contains | |||
7505 | // a DW_OP_addr opcode _somewhere_ in the definition. I say | |||
7506 | // somewhere because clang likes to combine small global variables | |||
7507 | // into the same symbol and have locations like: | |||
7508 | // DW_OP_addr(0x1000), DW_OP_constu(2), DW_OP_plus | |||
7509 | // So if we don't have a DW_TAG_formal_parameter, we can look at | |||
7510 | // the location to see if it contains a DW_OP_addr opcode, and | |||
7511 | // then we can correctly classify our variables. | |||
7512 | if (tag == DW_TAG_formal_parameter) | |||
7513 | scope = eValueTypeVariableArgument; | |||
7514 | else | |||
7515 | { | |||
7516 | bool op_error = false; | |||
7517 | // Check if the location has a DW_OP_addr with any address value... | |||
7518 | lldb::addr_t location_DW_OP_addr = LLDB_INVALID_ADDRESS(18446744073709551615UL); | |||
7519 | if (!location_is_const_value_data) | |||
7520 | { | |||
7521 | location_DW_OP_addr = location.GetLocation_DW_OP_addr (0, op_error); | |||
7522 | if (op_error) | |||
7523 | { | |||
7524 | StreamString strm; | |||
7525 | location.DumpLocationForAddress (&strm, eDescriptionLevelFull, 0, 0, NULL__null); | |||
7526 | GetObjectFile()->GetModule()->ReportError ("0x%8.8x: %s has an invalid location: %s", die->GetOffset(), DW_TAG_value_to_name(die->Tag()), strm.GetString().c_str()); | |||
7527 | } | |||
7528 | } | |||
7529 | ||||
7530 | if (location_DW_OP_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||
7531 | { | |||
7532 | if (is_external) | |||
7533 | scope = eValueTypeVariableGlobal; | |||
7534 | else | |||
7535 | scope = eValueTypeVariableStatic; | |||
7536 | ||||
7537 | ||||
7538 | SymbolFileDWARFDebugMap *debug_map_symfile = GetDebugMapSymfile (); | |||
7539 | ||||
7540 | if (debug_map_symfile) | |||
7541 | { | |||
7542 | // When leaving the DWARF in the .o files on darwin, | |||
7543 | // when we have a global variable that wasn't initialized, | |||
7544 | // the .o file might not have allocated a virtual | |||
7545 | // address for the global variable. In this case it will | |||
7546 | // have created a symbol for the global variable | |||
7547 | // that is undefined/data and external and the value will | |||
7548 | // be the byte size of the variable. When we do the | |||
7549 | // address map in SymbolFileDWARFDebugMap we rely on | |||
7550 | // having an address, we need to do some magic here | |||
7551 | // so we can get the correct address for our global | |||
7552 | // variable. The address for all of these entries | |||
7553 | // will be zero, and there will be an undefined symbol | |||
7554 | // in this object file, and the executable will have | |||
7555 | // a matching symbol with a good address. So here we | |||
7556 | // dig up the correct address and replace it in the | |||
7557 | // location for the variable, and set the variable's | |||
7558 | // symbol context scope to be that of the main executable | |||
7559 | // so the file address will resolve correctly. | |||
7560 | bool linked_oso_file_addr = false; | |||
7561 | if (is_external && location_DW_OP_addr == 0) | |||
7562 | { | |||
7563 | // we have a possible uninitialized extern global | |||
7564 | ConstString const_name(mangled ? mangled : name); | |||
7565 | ObjectFile *debug_map_objfile = debug_map_symfile->GetObjectFile(); | |||
7566 | if (debug_map_objfile) | |||
7567 | { | |||
7568 | Symtab *debug_map_symtab = debug_map_objfile->GetSymtab(); | |||
7569 | if (debug_map_symtab) | |||
7570 | { | |||
7571 | Symbol *exe_symbol = debug_map_symtab->FindFirstSymbolWithNameAndType (const_name, | |||
7572 | eSymbolTypeData, | |||
7573 | Symtab::eDebugYes, | |||
7574 | Symtab::eVisibilityExtern); | |||
7575 | if (exe_symbol) | |||
7576 | { | |||
7577 | if (exe_symbol->ValueIsAddress()) | |||
7578 | { | |||
7579 | const addr_t exe_file_addr = exe_symbol->GetAddress().GetFileAddress(); | |||
7580 | if (exe_file_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||
7581 | { | |||
7582 | if (location.Update_DW_OP_addr (exe_file_addr)) | |||
7583 | { | |||
7584 | linked_oso_file_addr = true; | |||
7585 | symbol_context_scope = exe_symbol; | |||
7586 | } | |||
7587 | } | |||
7588 | } | |||
7589 | } | |||
7590 | } | |||
7591 | } | |||
7592 | } | |||
7593 | ||||
7594 | if (!linked_oso_file_addr) | |||
7595 | { | |||
7596 | // The DW_OP_addr is not zero, but it contains a .o file address which | |||
7597 | // needs to be linked up correctly. | |||
7598 | const lldb::addr_t exe_file_addr = debug_map_symfile->LinkOSOFileAddress(this, location_DW_OP_addr); | |||
7599 | if (exe_file_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) | |||
7600 | { | |||
7601 | // Update the file address for this variable | |||
7602 | location.Update_DW_OP_addr (exe_file_addr); | |||
7603 | } | |||
7604 | else | |||
7605 | { | |||
7606 | // Variable didn't make it into the final executable | |||
7607 | return var_sp; | |||
7608 | } | |||
7609 | } | |||
7610 | } | |||
7611 | } | |||
7612 | else | |||
7613 | { | |||
7614 | scope = eValueTypeVariableLocal; | |||
7615 | } | |||
7616 | } | |||
7617 | ||||
7618 | if (symbol_context_scope == NULL__null) | |||
7619 | { | |||
7620 | switch (parent_tag) | |||
7621 | { | |||
7622 | case DW_TAG_subprogram: | |||
7623 | case DW_TAG_inlined_subroutine: | |||
7624 | case DW_TAG_lexical_block: | |||
7625 | if (sc.function) | |||
7626 | { | |||
7627 | symbol_context_scope = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset())); | |||
7628 | if (symbol_context_scope == NULL__null) | |||
7629 | symbol_context_scope = sc.function; | |||
7630 | } | |||
7631 | break; | |||
7632 | ||||
7633 | default: | |||
7634 | symbol_context_scope = sc.comp_unit; | |||
7635 | break; | |||
7636 | } | |||
7637 | } | |||
7638 | ||||
7639 | if (symbol_context_scope) | |||
7640 | { | |||
7641 | SymbolFileTypeSP type_sp(new SymbolFileType(*this, type_uid)); | |||
7642 | ||||
7643 | if (const_value.Form() && type_sp && type_sp->GetType()) | |||
7644 | location.CopyOpcodeData(const_value.Unsigned(), type_sp->GetType()->GetByteSize(), dwarf_cu->GetAddressByteSize()); | |||
7645 | ||||
7646 | var_sp.reset (new Variable (MakeUserID(die->GetOffset()), | |||
7647 | name, | |||
7648 | mangled, | |||
7649 | type_sp, | |||
7650 | scope, | |||
7651 | symbol_context_scope, | |||
7652 | &decl, | |||
7653 | location, | |||
7654 | is_external, | |||
7655 | is_artificial)); | |||
7656 | ||||
7657 | var_sp->SetLocationIsConstantValueData (location_is_const_value_data); | |||
7658 | } | |||
7659 | else | |||
7660 | { | |||
7661 | // Not ready to parse this variable yet. It might be a global | |||
7662 | // or static variable that is in a function scope and the function | |||
7663 | // in the symbol context wasn't filled in yet | |||
7664 | return var_sp; | |||
7665 | } | |||
7666 | } | |||
7667 | // Cache var_sp even if NULL (the variable was just a specification or | |||
7668 | // was missing vital information to be able to be displayed in the debugger | |||
7669 | // (missing location due to optimization, etc)) so we don't re-parse | |||
7670 | // this DIE over and over later... | |||
7671 | m_die_to_variable_sp[die] = var_sp; | |||
7672 | } | |||
7673 | return var_sp; | |||
7674 | } | |||
7675 | ||||
7676 | ||||
7677 | const DWARFDebugInfoEntry * | |||
7678 | SymbolFileDWARF::FindBlockContainingSpecification (dw_offset_t func_die_offset, | |||
7679 | dw_offset_t spec_block_die_offset, | |||
7680 | DWARFCompileUnit **result_die_cu_handle) | |||
7681 | { | |||
7682 | // Give the concrete function die specified by "func_die_offset", find the | |||
7683 | // concrete block whose DW_AT_specification or DW_AT_abstract_origin points | |||
7684 | // to "spec_block_die_offset" | |||
7685 | DWARFDebugInfo* info = DebugInfo(); | |||
7686 | ||||
7687 | const DWARFDebugInfoEntry *die = info->GetDIEPtrWithCompileUnitHint(func_die_offset, result_die_cu_handle); | |||
7688 | if (die) | |||
7689 | { | |||
7690 | assert (*result_die_cu_handle)((*result_die_cu_handle) ? static_cast<void> (0) : __assert_fail ("*result_die_cu_handle", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp" , 7690, __PRETTY_FUNCTION__)); | |||
7691 | return FindBlockContainingSpecification (*result_die_cu_handle, die, spec_block_die_offset, result_die_cu_handle); | |||
7692 | } | |||
7693 | return NULL__null; | |||
7694 | } | |||
7695 | ||||
7696 | ||||
7697 | const DWARFDebugInfoEntry * | |||
7698 | SymbolFileDWARF::FindBlockContainingSpecification(DWARFCompileUnit* dwarf_cu, | |||
7699 | const DWARFDebugInfoEntry *die, | |||
7700 | dw_offset_t spec_block_die_offset, | |||
7701 | DWARFCompileUnit **result_die_cu_handle) | |||
7702 | { | |||
7703 | if (die) | |||
7704 | { | |||
7705 | switch (die->Tag()) | |||
7706 | { | |||
7707 | case DW_TAG_subprogram: | |||
7708 | case DW_TAG_inlined_subroutine: | |||
7709 | case DW_TAG_lexical_block: | |||
7710 | { | |||
7711 | if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_specification, DW_INVALID_OFFSET(~(dw_offset_t)0)) == spec_block_die_offset) | |||
7712 | { | |||
7713 | *result_die_cu_handle = dwarf_cu; | |||
7714 | return die; | |||
7715 | } | |||
7716 | ||||
7717 | if (die->GetAttributeValueAsReference (this, dwarf_cu, DW_AT_abstract_origin, DW_INVALID_OFFSET(~(dw_offset_t)0)) == spec_block_die_offset) | |||
7718 | { | |||
7719 | *result_die_cu_handle = dwarf_cu; | |||
7720 | return die; | |||
7721 | } | |||
7722 | } | |||
7723 | break; | |||
7724 | } | |||
7725 | ||||
7726 | // Give the concrete function die specified by "func_die_offset", find the | |||
7727 | // concrete block whose DW_AT_specification or DW_AT_abstract_origin points | |||
7728 | // to "spec_block_die_offset" | |||
7729 | for (const DWARFDebugInfoEntry *child_die = die->GetFirstChild(); child_die != NULL__null; child_die = child_die->GetSibling()) | |||
7730 | { | |||
7731 | const DWARFDebugInfoEntry *result_die = FindBlockContainingSpecification (dwarf_cu, | |||
7732 | child_die, | |||
7733 | spec_block_die_offset, | |||
7734 | result_die_cu_handle); | |||
7735 | if (result_die) | |||
7736 | return result_die; | |||
7737 | } | |||
7738 | } | |||
7739 | ||||
7740 | *result_die_cu_handle = NULL__null; | |||
7741 | return NULL__null; | |||
7742 | } | |||
7743 | ||||
7744 | size_t | |||
7745 | SymbolFileDWARF::ParseVariables | |||
7746 | ( | |||
7747 | const SymbolContext& sc, | |||
7748 | DWARFCompileUnit* dwarf_cu, | |||
7749 | const lldb::addr_t func_low_pc, | |||
7750 | const DWARFDebugInfoEntry *orig_die, | |||
7751 | bool parse_siblings, | |||
7752 | bool parse_children, | |||
7753 | VariableList* cc_variable_list | |||
7754 | ) | |||
7755 | { | |||
7756 | if (orig_die == NULL__null) | |||
7757 | return 0; | |||
7758 | ||||
7759 | VariableListSP variable_list_sp; | |||
7760 | ||||
7761 | size_t vars_added = 0; | |||
7762 | const DWARFDebugInfoEntry *die = orig_die; | |||
7763 | while (die != NULL__null) | |||
7764 | { | |||
7765 | dw_tag_t tag = die->Tag(); | |||
7766 | ||||
7767 | // Check to see if we have already parsed this variable or constant? | |||
7768 | if (m_die_to_variable_sp[die]) | |||
7769 | { | |||
7770 | if (cc_variable_list) | |||
7771 | cc_variable_list->AddVariableIfUnique (m_die_to_variable_sp[die]); | |||
7772 | } | |||
7773 | else | |||
7774 | { | |||
7775 | // We haven't already parsed it, lets do that now. | |||
7776 | if ((tag == DW_TAG_variable) || | |||
7777 | (tag == DW_TAG_constant) || | |||
7778 | (tag == DW_TAG_formal_parameter && sc.function)) | |||
7779 | { | |||
7780 | if (variable_list_sp.get() == NULL__null) | |||
7781 | { | |||
7782 | const DWARFDebugInfoEntry *sc_parent_die = GetParentSymbolContextDIE(orig_die); | |||
7783 | dw_tag_t parent_tag = sc_parent_die ? sc_parent_die->Tag() : 0; | |||
7784 | switch (parent_tag) | |||
7785 | { | |||
7786 | case DW_TAG_compile_unit: | |||
7787 | if (sc.comp_unit != NULL__null) | |||
7788 | { | |||
7789 | variable_list_sp = sc.comp_unit->GetVariableList(false); | |||
7790 | if (variable_list_sp.get() == NULL__null) | |||
7791 | { | |||
7792 | variable_list_sp.reset(new VariableList()); | |||
7793 | sc.comp_unit->SetVariableList(variable_list_sp); | |||
7794 | } | |||
7795 | } | |||
7796 | else | |||
7797 | { | |||
7798 | GetObjectFile()->GetModule()->ReportError ("parent 0x%8.8" PRIx64"l" "x" " %s with no valid compile unit in symbol context for 0x%8.8" PRIx64"l" "x" " %s.\n", | |||
7799 | MakeUserID(sc_parent_die->GetOffset()), | |||
7800 | DW_TAG_value_to_name (parent_tag), | |||
7801 | MakeUserID(orig_die->GetOffset()), | |||
7802 | DW_TAG_value_to_name (orig_die->Tag())); | |||
7803 | } | |||
7804 | break; | |||
7805 | ||||
7806 | case DW_TAG_subprogram: | |||
7807 | case DW_TAG_inlined_subroutine: | |||
7808 | case DW_TAG_lexical_block: | |||
7809 | if (sc.function != NULL__null) | |||
7810 | { | |||
7811 | // Check to see if we already have parsed the variables for the given scope | |||
7812 | ||||
7813 | Block *block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(sc_parent_die->GetOffset())); | |||
7814 | if (block == NULL__null) | |||
7815 | { | |||
7816 | // This must be a specification or abstract origin with | |||
7817 | // a concrete block counterpart in the current function. We need | |||
7818 | // to find the concrete block so we can correctly add the | |||
7819 | // variable to it | |||
7820 | DWARFCompileUnit *concrete_block_die_cu = dwarf_cu; | |||
7821 | const DWARFDebugInfoEntry *concrete_block_die = FindBlockContainingSpecification (sc.function->GetID(), | |||
7822 | sc_parent_die->GetOffset(), | |||
7823 | &concrete_block_die_cu); | |||
7824 | if (concrete_block_die) | |||
7825 | block = sc.function->GetBlock(true).FindBlockByID(MakeUserID(concrete_block_die->GetOffset())); | |||
7826 | } | |||
7827 | ||||
7828 | if (block != NULL__null) | |||
7829 | { | |||
7830 | const bool can_create = false; | |||
7831 | variable_list_sp = block->GetBlockVariableList (can_create); | |||
7832 | if (variable_list_sp.get() == NULL__null) | |||
7833 | { | |||
7834 | variable_list_sp.reset(new VariableList()); | |||
7835 | block->SetVariableList(variable_list_sp); | |||
7836 | } | |||
7837 | } | |||
7838 | } | |||
7839 | break; | |||
7840 | ||||
7841 | default: | |||
7842 | GetObjectFile()->GetModule()->ReportError ("didn't find appropriate parent DIE for variable list for 0x%8.8" PRIx64"l" "x" " %s.\n", | |||
7843 | MakeUserID(orig_die->GetOffset()), | |||
7844 | DW_TAG_value_to_name (orig_die->Tag())); | |||
7845 | break; | |||
7846 | } | |||
7847 | } | |||
7848 | ||||
7849 | if (variable_list_sp) | |||
7850 | { | |||
7851 | VariableSP var_sp (ParseVariableDIE(sc, dwarf_cu, die, func_low_pc)); | |||
7852 | if (var_sp) | |||
7853 | { | |||
7854 | variable_list_sp->AddVariableIfUnique (var_sp); | |||
7855 | if (cc_variable_list) | |||
7856 | cc_variable_list->AddVariableIfUnique (var_sp); | |||
7857 | ++vars_added; | |||
7858 | } | |||
7859 | } | |||
7860 | } | |||
7861 | } | |||
7862 | ||||
7863 | bool skip_children = (sc.function == NULL__null && tag == DW_TAG_subprogram); | |||
7864 | ||||
7865 | if (!skip_children && parse_children && die->HasChildren()) | |||
7866 | { | |||
7867 | vars_added += ParseVariables(sc, dwarf_cu, func_low_pc, die->GetFirstChild(), true, true, cc_variable_list); | |||
7868 | } | |||
7869 | ||||
7870 | if (parse_siblings) | |||
7871 | die = die->GetSibling(); | |||
7872 | else | |||
7873 | die = NULL__null; | |||
7874 | } | |||
7875 | return vars_added; | |||
7876 | } | |||
7877 | ||||
7878 | //------------------------------------------------------------------ | |||
7879 | // PluginInterface protocol | |||
7880 | //------------------------------------------------------------------ | |||
7881 | ConstString | |||
7882 | SymbolFileDWARF::GetPluginName() | |||
7883 | { | |||
7884 | return GetPluginNameStatic(); | |||
7885 | } | |||
7886 | ||||
7887 | uint32_t | |||
7888 | SymbolFileDWARF::GetPluginVersion() | |||
7889 | { | |||
7890 | return 1; | |||
7891 | } | |||
7892 | ||||
7893 | void | |||
7894 | SymbolFileDWARF::CompleteTagDecl (void *baton, clang::TagDecl *decl) | |||
7895 | { | |||
7896 | SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton; | |||
7897 | ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); | |||
7898 | if (clang_type) | |||
7899 | symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); | |||
7900 | } | |||
7901 | ||||
7902 | void | |||
7903 | SymbolFileDWARF::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl) | |||
7904 | { | |||
7905 | SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton; | |||
7906 | ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl); | |||
7907 | if (clang_type) | |||
7908 | symbol_file_dwarf->ResolveClangOpaqueTypeDefinition (clang_type); | |||
7909 | } | |||
7910 | ||||
7911 | void | |||
7912 | SymbolFileDWARF::DumpIndexes () | |||
7913 | { | |||
7914 | StreamFile s(stdoutstdout, false); | |||
7915 | ||||
7916 | s.Printf ("DWARF index for (%s) '%s':", | |||
7917 | GetObjectFile()->GetModule()->GetArchitecture().GetArchitectureName(), | |||
7918 | GetObjectFile()->GetFileSpec().GetPath().c_str()); | |||
7919 | s.Printf("\nFunction basenames:\n"); m_function_basename_index.Dump (&s); | |||
7920 | s.Printf("\nFunction fullnames:\n"); m_function_fullname_index.Dump (&s); | |||
7921 | s.Printf("\nFunction methods:\n"); m_function_method_index.Dump (&s); | |||
7922 | s.Printf("\nFunction selectors:\n"); m_function_selector_index.Dump (&s); | |||
7923 | s.Printf("\nObjective C class selectors:\n"); m_objc_class_selectors_index.Dump (&s); | |||
7924 | s.Printf("\nGlobals and statics:\n"); m_global_index.Dump (&s); | |||
7925 | s.Printf("\nTypes:\n"); m_type_index.Dump (&s); | |||
7926 | s.Printf("\nNamepaces:\n"); m_namespace_index.Dump (&s); | |||
7927 | } | |||
7928 | ||||
7929 | void | |||
7930 | SymbolFileDWARF::SearchDeclContext (const clang::DeclContext *decl_context, | |||
7931 | const char *name, | |||
7932 | llvm::SmallVectorImpl <clang::NamedDecl *> *results) | |||
7933 | { | |||
7934 | DeclContextToDIEMap::iterator iter = m_decl_ctx_to_die.find(decl_context); | |||
7935 | ||||
7936 | if (iter == m_decl_ctx_to_die.end()) | |||
7937 | return; | |||
7938 | ||||
7939 | for (DIEPointerSet::iterator pos = iter->second.begin(), end = iter->second.end(); pos != end; ++pos) | |||
7940 | { | |||
7941 | const DWARFDebugInfoEntry *context_die = *pos; | |||
7942 | ||||
7943 | if (!results) | |||
7944 | return; | |||
7945 | ||||
7946 | DWARFDebugInfo* info = DebugInfo(); | |||
7947 | ||||
7948 | DIEArray die_offsets; | |||
7949 | ||||
7950 | DWARFCompileUnit* dwarf_cu = NULL__null; | |||
7951 | const DWARFDebugInfoEntry* die = NULL__null; | |||
7952 | ||||
7953 | if (m_using_apple_tables) | |||
7954 | { | |||
7955 | if (m_apple_types_ap.get()) | |||
7956 | m_apple_types_ap->FindByName (name, die_offsets); | |||
7957 | } | |||
7958 | else | |||
7959 | { | |||
7960 | if (!m_indexed) | |||
7961 | Index (); | |||
7962 | ||||
7963 | m_type_index.Find (ConstString(name), die_offsets); | |||
7964 | } | |||
7965 | ||||
7966 | const size_t num_matches = die_offsets.size(); | |||
7967 | ||||
7968 | if (num_matches) | |||
7969 | { | |||
7970 | for (size_t i = 0; i < num_matches; ++i) | |||
7971 | { | |||
7972 | const dw_offset_t die_offset = die_offsets[i]; | |||
7973 | die = info->GetDIEPtrWithCompileUnitHint (die_offset, &dwarf_cu); | |||
7974 | ||||
7975 | if (die->GetParent() != context_die) | |||
7976 | continue; | |||
7977 | ||||
7978 | Type *matching_type = ResolveType (dwarf_cu, die); | |||
7979 | ||||
7980 | clang::QualType qual_type = matching_type->GetClangForwardType().GetQualType(); | |||
7981 | ||||
7982 | if (const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr())) | |||
7983 | { | |||
7984 | clang::TagDecl *tag_decl = tag_type->getDecl(); | |||
7985 | results->push_back(tag_decl); | |||
7986 | } | |||
7987 | else if (const clang::TypedefType *typedef_type = llvm::dyn_cast<clang::TypedefType>(qual_type.getTypePtr())) | |||
7988 | { | |||
7989 | clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl(); | |||
7990 | results->push_back(typedef_decl); | |||
7991 | } | |||
7992 | } | |||
7993 | } | |||
7994 | } | |||
7995 | } | |||
7996 | ||||
7997 | void | |||
7998 | SymbolFileDWARF::FindExternalVisibleDeclsByName (void *baton, | |||
7999 | const clang::DeclContext *decl_context, | |||
8000 | clang::DeclarationName decl_name, | |||
8001 | llvm::SmallVectorImpl <clang::NamedDecl *> *results) | |||
8002 | { | |||
8003 | ||||
8004 | switch (decl_context->getDeclKind()) | |||
8005 | { | |||
8006 | case clang::Decl::Namespace: | |||
8007 | case clang::Decl::TranslationUnit: | |||
8008 | { | |||
8009 | SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton; | |||
8010 | symbol_file_dwarf->SearchDeclContext (decl_context, decl_name.getAsString().c_str(), results); | |||
8011 | } | |||
8012 | break; | |||
8013 | default: | |||
8014 | break; | |||
8015 | } | |||
8016 | } | |||
8017 | ||||
8018 | bool | |||
8019 | SymbolFileDWARF::LayoutRecordType (void *baton, | |||
8020 | const clang::RecordDecl *record_decl, | |||
8021 | uint64_t &size, | |||
8022 | uint64_t &alignment, | |||
8023 | llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets, | |||
8024 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets, | |||
8025 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) | |||
8026 | { | |||
8027 | SymbolFileDWARF *symbol_file_dwarf = (SymbolFileDWARF *)baton; | |||
8028 | return symbol_file_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets); | |||
8029 | } | |||
8030 | ||||
8031 | ||||
8032 | bool | |||
8033 | SymbolFileDWARF::LayoutRecordType (const clang::RecordDecl *record_decl, | |||
8034 | uint64_t &bit_size, | |||
8035 | uint64_t &alignment, | |||
8036 | llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets, | |||
8037 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets, | |||
8038 | llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets) | |||
8039 | { | |||
8040 | Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_INFO(1u << 1))); | |||
8041 | RecordDeclToLayoutMap::iterator pos = m_record_decl_to_layout_map.find (record_decl); | |||
8042 | bool success = false; | |||
8043 | base_offsets.clear(); | |||
8044 | vbase_offsets.clear(); | |||
8045 | if (pos != m_record_decl_to_layout_map.end()) | |||
8046 | { | |||
8047 | bit_size = pos->second.bit_size; | |||
8048 | alignment = pos->second.alignment; | |||
8049 | field_offsets.swap(pos->second.field_offsets); | |||
8050 | base_offsets.swap (pos->second.base_offsets); | |||
8051 | vbase_offsets.swap (pos->second.vbase_offsets); | |||
8052 | m_record_decl_to_layout_map.erase(pos); | |||
8053 | success = true; | |||
8054 | } | |||
8055 | else | |||
8056 | { | |||
8057 | bit_size = 0; | |||
8058 | alignment = 0; | |||
8059 | field_offsets.clear(); | |||
8060 | } | |||
8061 | ||||
8062 | if (log) | |||
8063 | GetObjectFile()->GetModule()->LogMessage (log, | |||
8064 | "SymbolFileDWARF::LayoutRecordType (record_decl = %p, bit_size = %" PRIu64"l" "u" ", alignment = %" PRIu64"l" "u" ", field_offsets[%u],base_offsets[%u], vbase_offsets[%u]) success = %i", | |||
8065 | static_cast<const void*>(record_decl), | |||
8066 | bit_size, alignment, | |||
8067 | static_cast<uint32_t>(field_offsets.size()), | |||
8068 | static_cast<uint32_t>(base_offsets.size()), | |||
8069 | static_cast<uint32_t>(vbase_offsets.size()), | |||
8070 | success); | |||
8071 | return success; | |||
8072 | } | |||
8073 | ||||
8074 | ||||
8075 | SymbolFileDWARFDebugMap * | |||
8076 | SymbolFileDWARF::GetDebugMapSymfile () | |||
8077 | { | |||
8078 | if (m_debug_map_symfile == NULL__null && !m_debug_map_module_wp.expired()) | |||
8079 | { | |||
8080 | lldb::ModuleSP module_sp (m_debug_map_module_wp.lock()); | |||
8081 | if (module_sp) | |||
8082 | { | |||
8083 | SymbolVendor *sym_vendor = module_sp->GetSymbolVendor(); | |||
8084 | if (sym_vendor) | |||
8085 | m_debug_map_symfile = (SymbolFileDWARFDebugMap *)sym_vendor->GetSymbolFile(); | |||
8086 | } | |||
8087 | } | |||
8088 | return m_debug_map_symfile; | |||
8089 | } | |||
8090 | ||||
8091 |