File: | tools/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp |
Location: | line 7420, column 41 |
Description: | Value stored to 'data_length' is never read |
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(); |
Value stored to 'data_length' is never read | |
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 |